diff options
Diffstat (limited to 'contrib/llvm/tools/clang/lib/Driver/ToolChains')
80 files changed, 24979 insertions, 0 deletions
diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/AMDGPU.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/AMDGPU.cpp new file mode 100644 index 0000000..63e1749 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/AMDGPU.cpp @@ -0,0 +1,45 @@ +//===--- AMDGPU.cpp - AMDGPU ToolChain Implementations ----------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "AMDGPU.h" +#include "InputInfo.h" +#include "CommonArgs.h" +#include "clang/Driver/Compilation.h" +#include "llvm/Option/ArgList.h" + +using namespace clang::driver; +using namespace clang::driver::tools; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +void amdgpu::Linker::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + + std::string Linker = getToolChain().GetProgramPath(getShortName()); + ArgStringList CmdArgs; + AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); + CmdArgs.push_back("-shared"); + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + C.addCommand(llvm::make_unique<Command>(JA, *this, Args.MakeArgString(Linker), + CmdArgs, Inputs)); +} + +/// AMDGPU Toolchain +AMDGPUToolChain::AMDGPUToolChain(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : Generic_ELF(D, Triple, Args) { } + +Tool *AMDGPUToolChain::buildLinker() const { + return new tools::amdgpu::Linker(*this); +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/AMDGPU.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/AMDGPU.h new file mode 100644 index 0000000..9af1e96 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/AMDGPU.h @@ -0,0 +1,54 @@ +//===--- AMDGPU.h - AMDGPU ToolChain Implementations ----------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_AMDGPU_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_AMDGPU_H + +#include "Gnu.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace tools { + +namespace amdgpu { + +class LLVM_LIBRARY_VISIBILITY Linker : public GnuTool { +public: + Linker(const ToolChain &TC) : GnuTool("amdgpu::Linker", "ld.lld", TC) {} + bool isLinkJob() const override { return true; } + bool hasIntegratedCPP() const override { return false; } + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +} // end namespace amdgpu +} // end namespace tools + +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY AMDGPUToolChain : public Generic_ELF { +protected: + Tool *buildLinker() const override; + +public: + AMDGPUToolChain(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + unsigned GetDefaultDwarfVersion() const override { return 2; } + bool IsIntegratedAssemblerDefault() const override { return true; } +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_AMDGPU_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/AVR.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/AVR.cpp new file mode 100644 index 0000000..877009a --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/AVR.cpp @@ -0,0 +1,44 @@ +//===--- AVR.cpp - AVR ToolChain Implementations ----------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "AVR.h" +#include "CommonArgs.h" +#include "InputInfo.h" +#include "clang/Driver/Compilation.h" +#include "llvm/Option/ArgList.h" + +using namespace clang::driver; +using namespace clang::driver::toolchains; +using namespace clang::driver::tools; +using namespace clang; +using namespace llvm::opt; + +/// AVR Toolchain +AVRToolChain::AVRToolChain(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : Generic_ELF(D, Triple, Args) { } +Tool *AVRToolChain::buildLinker() const { + return new tools::AVR::Linker(*this); +} + +void AVR::Linker::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + + std::string Linker = getToolChain().GetProgramPath(getShortName()); + ArgStringList CmdArgs; + AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + C.addCommand(llvm::make_unique<Command>(JA, *this, Args.MakeArgString(Linker), + CmdArgs, Inputs)); +} +// AVR tools end. diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/AVR.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/AVR.h new file mode 100644 index 0000000..a7479a7 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/AVR.h @@ -0,0 +1,49 @@ +//===--- AVR.h - AVR Tool and ToolChain Implementations ---------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_AVR_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_AVR_H + +#include "Gnu.h" +#include "InputInfo.h" +#include "clang/Driver/ToolChain.h" +#include "clang/Driver/Tool.h" + +namespace clang { +namespace driver { +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY AVRToolChain : public Generic_ELF { +protected: + Tool *buildLinker() const override; +public: + AVRToolChain(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); +}; + +} // end namespace toolchains + +namespace tools { +namespace AVR { +class LLVM_LIBRARY_VISIBILITY Linker : public GnuTool { +public: + Linker(const ToolChain &TC) : GnuTool("AVR::Linker", "avr-ld", TC) {} + bool hasIntegratedCPP() const override { return false; } + bool isLinkJob() const override { return true; } + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; +} // end namespace AVR +} // end namespace tools +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_AVR_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Ananas.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Ananas.cpp new file mode 100644 index 0000000..a67e1d2 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Ananas.cpp @@ -0,0 +1,120 @@ +//===--- Ananas.cpp - Ananas ToolChain Implementations ------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "Ananas.h" +#include "InputInfo.h" +#include "CommonArgs.h" +#include "clang/Config/config.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/Options.h" +#include "llvm/ADT/SmallString.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Support/Path.h" + +using namespace clang::driver; +using namespace clang::driver::tools; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +void ananas::Assembler::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + claimNoWarnArgs(Args); + ArgStringList CmdArgs; + + Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + for (const auto &II : Inputs) + CmdArgs.push_back(II.getFilename()); + + const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as")); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +void ananas::Linker::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + const ToolChain &ToolChain = getToolChain(); + const Driver &D = ToolChain.getDriver(); + ArgStringList CmdArgs; + + // Silence warning for "clang -g foo.o -o foo" + Args.ClaimAllArgs(options::OPT_g_Group); + // and "clang -emit-llvm foo.o -o foo" + Args.ClaimAllArgs(options::OPT_emit_llvm); + // and for "clang -w foo.o -o foo". Other warning options are already + // handled somewhere else. + Args.ClaimAllArgs(options::OPT_w); + + if (!D.SysRoot.empty()) + CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); + + // Ananas only supports static linkage for now. + CmdArgs.push_back("-Bstatic"); + + if (Output.isFilename()) { + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + } else { + assert(Output.isNothing() && "Invalid output."); + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt0.o"))); + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o"))); + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtbegin.o"))); + } + + Args.AddAllArgs(CmdArgs, options::OPT_L); + ToolChain.AddFilePathLibArgs(Args, CmdArgs); + Args.AddAllArgs(CmdArgs, + {options::OPT_T_Group, options::OPT_e, options::OPT_s, + options::OPT_t, options::OPT_Z_Flag, options::OPT_r}); + + if (D.isUsingLTO()) + AddGoldPlugin(ToolChain, Args, CmdArgs, D.getLTOMode() == LTOK_Thin, D); + + AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { + if (D.CCCIsCXX()) + ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs); + CmdArgs.push_back("-lc"); + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtend.o"))); + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o"))); + } + + const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath()); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +// Ananas - Ananas tool chain which can call as(1) and ld(1) directly. + +Ananas::Ananas(const Driver &D, const llvm::Triple &Triple, const ArgList &Args) + : Generic_ELF(D, Triple, Args) { + getFilePaths().push_back(getDriver().SysRoot + "/usr/lib"); +} + +Tool *Ananas::buildAssembler() const { + return new tools::ananas::Assembler(*this); +} + +Tool *Ananas::buildLinker() const { return new tools::ananas::Linker(*this); } diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Ananas.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Ananas.h new file mode 100644 index 0000000..2563dd2 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Ananas.h @@ -0,0 +1,67 @@ +//===--- Ananas.h - Ananas ToolChain Implementations --------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ANANAS_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ANANAS_H + +#include "Gnu.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace tools { + +/// ananas -- Directly call GNU Binutils assembler and linker +namespace ananas { +class LLVM_LIBRARY_VISIBILITY Assembler : public GnuTool { +public: + Assembler(const ToolChain &TC) + : GnuTool("ananas::Assembler", "assembler", TC) {} + + bool hasIntegratedCPP() const override { return false; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +class LLVM_LIBRARY_VISIBILITY Linker : public GnuTool { +public: + Linker(const ToolChain &TC) : GnuTool("ananas::Linker", "linker", TC) {} + + bool hasIntegratedCPP() const override { return false; } + bool isLinkJob() const override { return true; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; +} // end namespace ananas +} // end namespace tools + +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY Ananas : public Generic_ELF { +public: + Ananas(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + +protected: + Tool *buildAssembler() const override; + Tool *buildLinker() const override; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ANANAS_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/AArch64.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/AArch64.cpp new file mode 100644 index 0000000..554d051 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/AArch64.cpp @@ -0,0 +1,199 @@ +//===--- AArch64.cpp - AArch64 (not ARM) Helpers for Tools ------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "AArch64.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Options.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Support/TargetParser.h" + +using namespace clang::driver; +using namespace clang::driver::tools; +using namespace clang; +using namespace llvm::opt; + +/// getAArch64TargetCPU - Get the (LLVM) name of the AArch64 cpu we are +/// targeting. Set \p A to the Arg corresponding to the -mcpu or -mtune +/// arguments if they are provided, or to nullptr otherwise. +std::string aarch64::getAArch64TargetCPU(const ArgList &Args, Arg *&A) { + std::string CPU; + // If we have -mtune or -mcpu, use that. + if ((A = Args.getLastArg(clang::driver::options::OPT_mtune_EQ))) { + CPU = StringRef(A->getValue()).lower(); + } else if ((A = Args.getLastArg(options::OPT_mcpu_EQ))) { + StringRef Mcpu = A->getValue(); + CPU = Mcpu.split("+").first.lower(); + } + + // Handle CPU name is 'native'. + if (CPU == "native") + return llvm::sys::getHostCPUName(); + else if (CPU.size()) + return CPU; + + // Make sure we pick "cyclone" if -arch is used. + // FIXME: Should this be picked by checking the target triple instead? + if (Args.getLastArg(options::OPT_arch)) + return "cyclone"; + + return "generic"; +} + +// Decode AArch64 features from string like +[no]featureA+[no]featureB+... +static bool DecodeAArch64Features(const Driver &D, StringRef text, + std::vector<StringRef> &Features) { + SmallVector<StringRef, 8> Split; + text.split(Split, StringRef("+"), -1, false); + + for (StringRef Feature : Split) { + StringRef FeatureName = llvm::AArch64::getArchExtFeature(Feature); + if (!FeatureName.empty()) + Features.push_back(FeatureName); + else if (Feature == "neon" || Feature == "noneon") + D.Diag(clang::diag::err_drv_no_neon_modifier); + else + return false; + } + return true; +} + +// Check if the CPU name and feature modifiers in -mcpu are legal. If yes, +// decode CPU and feature. +static bool DecodeAArch64Mcpu(const Driver &D, StringRef Mcpu, StringRef &CPU, + std::vector<StringRef> &Features) { + std::pair<StringRef, StringRef> Split = Mcpu.split("+"); + CPU = Split.first; + + if (CPU == "generic") { + Features.push_back("+neon"); + } else { + unsigned ArchKind = llvm::AArch64::parseCPUArch(CPU); + if (!llvm::AArch64::getArchFeatures(ArchKind, Features)) + return false; + + unsigned Extension = llvm::AArch64::getDefaultExtensions(CPU, ArchKind); + if (!llvm::AArch64::getExtensionFeatures(Extension, Features)) + return false; + } + + if (Split.second.size() && !DecodeAArch64Features(D, Split.second, Features)) + return false; + + return true; +} + +static bool +getAArch64ArchFeaturesFromMarch(const Driver &D, StringRef March, + const ArgList &Args, + std::vector<StringRef> &Features) { + std::string MarchLowerCase = March.lower(); + std::pair<StringRef, StringRef> Split = StringRef(MarchLowerCase).split("+"); + + unsigned ArchKind = llvm::AArch64::parseArch(Split.first); + if (ArchKind == static_cast<unsigned>(llvm::AArch64::ArchKind::AK_INVALID) || + !llvm::AArch64::getArchFeatures(ArchKind, Features) || + (Split.second.size() && !DecodeAArch64Features(D, Split.second, Features))) + return false; + + return true; +} + +static bool +getAArch64ArchFeaturesFromMcpu(const Driver &D, StringRef Mcpu, + const ArgList &Args, + std::vector<StringRef> &Features) { + StringRef CPU; + std::string McpuLowerCase = Mcpu.lower(); + if (!DecodeAArch64Mcpu(D, McpuLowerCase, CPU, Features)) + return false; + + return true; +} + +static bool +getAArch64MicroArchFeaturesFromMtune(const Driver &D, StringRef Mtune, + const ArgList &Args, + std::vector<StringRef> &Features) { + std::string MtuneLowerCase = Mtune.lower(); + // Handle CPU name is 'native'. + if (MtuneLowerCase == "native") + MtuneLowerCase = llvm::sys::getHostCPUName(); + if (MtuneLowerCase == "cyclone") { + Features.push_back("+zcm"); + Features.push_back("+zcz"); + } + return true; +} + +static bool +getAArch64MicroArchFeaturesFromMcpu(const Driver &D, StringRef Mcpu, + const ArgList &Args, + std::vector<StringRef> &Features) { + StringRef CPU; + std::vector<StringRef> DecodedFeature; + std::string McpuLowerCase = Mcpu.lower(); + if (!DecodeAArch64Mcpu(D, McpuLowerCase, CPU, DecodedFeature)) + return false; + + return getAArch64MicroArchFeaturesFromMtune(D, CPU, Args, Features); +} + +void aarch64::getAArch64TargetFeatures(const Driver &D, const ArgList &Args, + std::vector<StringRef> &Features) { + Arg *A; + bool success = true; + // Enable NEON by default. + Features.push_back("+neon"); + if ((A = Args.getLastArg(options::OPT_march_EQ))) + success = getAArch64ArchFeaturesFromMarch(D, A->getValue(), Args, Features); + else if ((A = Args.getLastArg(options::OPT_mcpu_EQ))) + success = getAArch64ArchFeaturesFromMcpu(D, A->getValue(), Args, Features); + else if (Args.hasArg(options::OPT_arch)) + success = getAArch64ArchFeaturesFromMcpu(D, getAArch64TargetCPU(Args, A), + Args, Features); + + if (success && (A = Args.getLastArg(clang::driver::options::OPT_mtune_EQ))) + success = + getAArch64MicroArchFeaturesFromMtune(D, A->getValue(), Args, Features); + else if (success && (A = Args.getLastArg(options::OPT_mcpu_EQ))) + success = + getAArch64MicroArchFeaturesFromMcpu(D, A->getValue(), Args, Features); + else if (success && Args.hasArg(options::OPT_arch)) + success = getAArch64MicroArchFeaturesFromMcpu( + D, getAArch64TargetCPU(Args, A), Args, Features); + + if (!success) + D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args); + + if (Args.getLastArg(options::OPT_mgeneral_regs_only)) { + Features.push_back("-fp-armv8"); + Features.push_back("-crypto"); + Features.push_back("-neon"); + } + + // En/disable crc + if (Arg *A = Args.getLastArg(options::OPT_mcrc, options::OPT_mnocrc)) { + if (A->getOption().matches(options::OPT_mcrc)) + Features.push_back("+crc"); + else + Features.push_back("-crc"); + } + + if (Arg *A = Args.getLastArg(options::OPT_mno_unaligned_access, + options::OPT_munaligned_access)) + if (A->getOption().matches(options::OPT_mno_unaligned_access)) + Features.push_back("+strict-align"); + + if (Args.hasArg(options::OPT_ffixed_x18)) + Features.push_back("+reserve-x18"); + + if (Args.hasArg(options::OPT_mno_neg_immediates)) + Features.push_back("+no-neg-immediates"); +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/AArch64.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/AArch64.h new file mode 100644 index 0000000..62e419c --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/AArch64.h @@ -0,0 +1,35 @@ +//===--- AArch64.h - AArch64-specific (not ARM) Tool Helpers ----*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_AARCH64_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_AARCH64_H + +#include "clang/Driver/Driver.h" +#include "llvm/ADT/StringRef.h" +#include "llvm/Option/Option.h" +#include <string> +#include <vector> + +namespace clang { +namespace driver { +namespace tools { +namespace aarch64 { + +void getAArch64TargetFeatures(const Driver &D, const llvm::opt::ArgList &Args, + std::vector<llvm::StringRef> &Features); + +std::string getAArch64TargetCPU(const llvm::opt::ArgList &Args, + llvm::opt::Arg *&A); + +} // end namespace aarch64 +} // end namespace target +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_AARCH64_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/ARM.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/ARM.cpp new file mode 100644 index 0000000..95b86f7 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/ARM.cpp @@ -0,0 +1,557 @@ +//===--- ARM.cpp - ARM (not AArch64) Helpers for Tools ----------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "ARM.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Options.h" +#include "llvm/ADT/StringSwitch.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Support/TargetParser.h" + +using namespace clang::driver; +using namespace clang::driver::tools; +using namespace clang; +using namespace llvm::opt; + +// Get SubArch (vN). +int arm::getARMSubArchVersionNumber(const llvm::Triple &Triple) { + llvm::StringRef Arch = Triple.getArchName(); + return llvm::ARM::parseArchVersion(Arch); +} + +// True if M-profile. +bool arm::isARMMProfile(const llvm::Triple &Triple) { + llvm::StringRef Arch = Triple.getArchName(); + unsigned Profile = llvm::ARM::parseArchProfile(Arch); + return Profile == llvm::ARM::PK_M; +} + +// Get Arch/CPU from args. +void arm::getARMArchCPUFromArgs(const ArgList &Args, llvm::StringRef &Arch, + llvm::StringRef &CPU, bool FromAs) { + if (const Arg *A = Args.getLastArg(clang::driver::options::OPT_mcpu_EQ)) + CPU = A->getValue(); + if (const Arg *A = Args.getLastArg(options::OPT_march_EQ)) + Arch = A->getValue(); + if (!FromAs) + return; + + for (const Arg *A : + Args.filtered(options::OPT_Wa_COMMA, options::OPT_Xassembler)) { + StringRef Value = A->getValue(); + if (Value.startswith("-mcpu=")) + CPU = Value.substr(6); + if (Value.startswith("-march=")) + Arch = Value.substr(7); + } +} + +// Handle -mhwdiv=. +// FIXME: Use ARMTargetParser. +static void getARMHWDivFeatures(const Driver &D, const Arg *A, + const ArgList &Args, StringRef HWDiv, + std::vector<StringRef> &Features) { + unsigned HWDivID = llvm::ARM::parseHWDiv(HWDiv); + if (!llvm::ARM::getHWDivFeatures(HWDivID, Features)) + D.Diag(clang::diag::err_drv_clang_unsupported) << A->getAsString(Args); +} + +// Handle -mfpu=. +static void getARMFPUFeatures(const Driver &D, const Arg *A, + const ArgList &Args, StringRef FPU, + std::vector<StringRef> &Features) { + unsigned FPUID = llvm::ARM::parseFPU(FPU); + if (!llvm::ARM::getFPUFeatures(FPUID, Features)) + D.Diag(clang::diag::err_drv_clang_unsupported) << A->getAsString(Args); +} + +// Decode ARM features from string like +[no]featureA+[no]featureB+... +static bool DecodeARMFeatures(const Driver &D, StringRef text, + std::vector<StringRef> &Features) { + SmallVector<StringRef, 8> Split; + text.split(Split, StringRef("+"), -1, false); + + for (StringRef Feature : Split) { + StringRef FeatureName = llvm::ARM::getArchExtFeature(Feature); + if (!FeatureName.empty()) + Features.push_back(FeatureName); + else + return false; + } + return true; +} + +// Check if -march is valid by checking if it can be canonicalised and parsed. +// getARMArch is used here instead of just checking the -march value in order +// to handle -march=native correctly. +static void checkARMArchName(const Driver &D, const Arg *A, const ArgList &Args, + llvm::StringRef ArchName, + std::vector<StringRef> &Features, + const llvm::Triple &Triple) { + std::pair<StringRef, StringRef> Split = ArchName.split("+"); + + std::string MArch = arm::getARMArch(ArchName, Triple); + if (llvm::ARM::parseArch(MArch) == llvm::ARM::AK_INVALID || + (Split.second.size() && !DecodeARMFeatures(D, Split.second, Features))) + D.Diag(clang::diag::err_drv_clang_unsupported) << A->getAsString(Args); +} + +// Check -mcpu=. Needs ArchName to handle -mcpu=generic. +static void checkARMCPUName(const Driver &D, const Arg *A, const ArgList &Args, + llvm::StringRef CPUName, llvm::StringRef ArchName, + std::vector<StringRef> &Features, + const llvm::Triple &Triple) { + std::pair<StringRef, StringRef> Split = CPUName.split("+"); + + std::string CPU = arm::getARMTargetCPU(CPUName, ArchName, Triple); + if (arm::getLLVMArchSuffixForARM(CPU, ArchName, Triple).empty() || + (Split.second.size() && !DecodeARMFeatures(D, Split.second, Features))) + D.Diag(clang::diag::err_drv_clang_unsupported) << A->getAsString(Args); +} + +bool arm::useAAPCSForMachO(const llvm::Triple &T) { + // The backend is hardwired to assume AAPCS for M-class processors, ensure + // the frontend matches that. + return T.getEnvironment() == llvm::Triple::EABI || + T.getOS() == llvm::Triple::UnknownOS || isARMMProfile(T); +} + +// Select the float ABI as determined by -msoft-float, -mhard-float, and +// -mfloat-abi=. +arm::FloatABI arm::getARMFloatABI(const ToolChain &TC, const ArgList &Args) { + const Driver &D = TC.getDriver(); + const llvm::Triple &Triple = TC.getEffectiveTriple(); + auto SubArch = getARMSubArchVersionNumber(Triple); + arm::FloatABI ABI = FloatABI::Invalid; + if (Arg *A = + Args.getLastArg(options::OPT_msoft_float, options::OPT_mhard_float, + options::OPT_mfloat_abi_EQ)) { + if (A->getOption().matches(options::OPT_msoft_float)) { + ABI = FloatABI::Soft; + } else if (A->getOption().matches(options::OPT_mhard_float)) { + ABI = FloatABI::Hard; + } else { + ABI = llvm::StringSwitch<arm::FloatABI>(A->getValue()) + .Case("soft", FloatABI::Soft) + .Case("softfp", FloatABI::SoftFP) + .Case("hard", FloatABI::Hard) + .Default(FloatABI::Invalid); + if (ABI == FloatABI::Invalid && !StringRef(A->getValue()).empty()) { + D.Diag(diag::err_drv_invalid_mfloat_abi) << A->getAsString(Args); + ABI = FloatABI::Soft; + } + } + + // It is incorrect to select hard float ABI on MachO platforms if the ABI is + // "apcs-gnu". + if (Triple.isOSBinFormatMachO() && !useAAPCSForMachO(Triple) && + ABI == FloatABI::Hard) { + D.Diag(diag::err_drv_unsupported_opt_for_target) << A->getAsString(Args) + << Triple.getArchName(); + } + } + + // If unspecified, choose the default based on the platform. + if (ABI == FloatABI::Invalid) { + switch (Triple.getOS()) { + case llvm::Triple::Darwin: + case llvm::Triple::MacOSX: + case llvm::Triple::IOS: + case llvm::Triple::TvOS: { + // Darwin defaults to "softfp" for v6 and v7. + ABI = (SubArch == 6 || SubArch == 7) ? FloatABI::SoftFP : FloatABI::Soft; + ABI = Triple.isWatchABI() ? FloatABI::Hard : ABI; + break; + } + case llvm::Triple::WatchOS: + ABI = FloatABI::Hard; + break; + + // FIXME: this is invalid for WindowsCE + case llvm::Triple::Win32: + ABI = FloatABI::Hard; + break; + + case llvm::Triple::NetBSD: + switch (Triple.getEnvironment()) { + case llvm::Triple::EABIHF: + case llvm::Triple::GNUEABIHF: + ABI = FloatABI::Hard; + break; + default: + ABI = FloatABI::Soft; + break; + } + break; + + case llvm::Triple::FreeBSD: + switch (Triple.getEnvironment()) { + case llvm::Triple::GNUEABIHF: + ABI = FloatABI::Hard; + break; + default: + // FreeBSD defaults to soft float + ABI = FloatABI::Soft; + break; + } + break; + + case llvm::Triple::OpenBSD: + ABI = FloatABI::Soft; + break; + + default: + switch (Triple.getEnvironment()) { + case llvm::Triple::GNUEABIHF: + case llvm::Triple::MuslEABIHF: + case llvm::Triple::EABIHF: + ABI = FloatABI::Hard; + break; + case llvm::Triple::GNUEABI: + case llvm::Triple::MuslEABI: + case llvm::Triple::EABI: + // EABI is always AAPCS, and if it was not marked 'hard', it's softfp + ABI = FloatABI::SoftFP; + break; + case llvm::Triple::Android: + ABI = (SubArch == 7) ? FloatABI::SoftFP : FloatABI::Soft; + break; + default: + // Assume "soft", but warn the user we are guessing. + if (Triple.isOSBinFormatMachO() && + Triple.getSubArch() == llvm::Triple::ARMSubArch_v7em) + ABI = FloatABI::Hard; + else + ABI = FloatABI::Soft; + + if (Triple.getOS() != llvm::Triple::UnknownOS || + !Triple.isOSBinFormatMachO()) + D.Diag(diag::warn_drv_assuming_mfloat_abi_is) << "soft"; + break; + } + } + } + + assert(ABI != FloatABI::Invalid && "must select an ABI"); + return ABI; +} + +void arm::getARMTargetFeatures(const ToolChain &TC, + const llvm::Triple &Triple, + const ArgList &Args, + ArgStringList &CmdArgs, + std::vector<StringRef> &Features, + bool ForAS) { + const Driver &D = TC.getDriver(); + + bool KernelOrKext = + Args.hasArg(options::OPT_mkernel, options::OPT_fapple_kext); + arm::FloatABI ABI = arm::getARMFloatABI(TC, Args); + const Arg *WaCPU = nullptr, *WaFPU = nullptr; + const Arg *WaHDiv = nullptr, *WaArch = nullptr; + + if (!ForAS) { + // FIXME: Note, this is a hack, the LLVM backend doesn't actually use these + // yet (it uses the -mfloat-abi and -msoft-float options), and it is + // stripped out by the ARM target. We should probably pass this a new + // -target-option, which is handled by the -cc1/-cc1as invocation. + // + // FIXME2: For consistency, it would be ideal if we set up the target + // machine state the same when using the frontend or the assembler. We don't + // currently do that for the assembler, we pass the options directly to the + // backend and never even instantiate the frontend TargetInfo. If we did, + // and used its handleTargetFeatures hook, then we could ensure the + // assembler and the frontend behave the same. + + // Use software floating point operations? + if (ABI == arm::FloatABI::Soft) + Features.push_back("+soft-float"); + + // Use software floating point argument passing? + if (ABI != arm::FloatABI::Hard) + Features.push_back("+soft-float-abi"); + } else { + // Here, we make sure that -Wa,-mfpu/cpu/arch/hwdiv will be passed down + // to the assembler correctly. + for (const Arg *A : + Args.filtered(options::OPT_Wa_COMMA, options::OPT_Xassembler)) { + StringRef Value = A->getValue(); + if (Value.startswith("-mfpu=")) { + WaFPU = A; + } else if (Value.startswith("-mcpu=")) { + WaCPU = A; + } else if (Value.startswith("-mhwdiv=")) { + WaHDiv = A; + } else if (Value.startswith("-march=")) { + WaArch = A; + } + } + } + + // Check -march. ClangAs gives preference to -Wa,-march=. + const Arg *ArchArg = Args.getLastArg(options::OPT_march_EQ); + StringRef ArchName; + if (WaArch) { + if (ArchArg) + D.Diag(clang::diag::warn_drv_unused_argument) + << ArchArg->getAsString(Args); + ArchName = StringRef(WaArch->getValue()).substr(7); + checkARMArchName(D, WaArch, Args, ArchName, Features, Triple); + // FIXME: Set Arch. + D.Diag(clang::diag::warn_drv_unused_argument) << WaArch->getAsString(Args); + } else if (ArchArg) { + ArchName = ArchArg->getValue(); + checkARMArchName(D, ArchArg, Args, ArchName, Features, Triple); + } + + // Check -mcpu. ClangAs gives preference to -Wa,-mcpu=. + const Arg *CPUArg = Args.getLastArg(options::OPT_mcpu_EQ); + StringRef CPUName; + if (WaCPU) { + if (CPUArg) + D.Diag(clang::diag::warn_drv_unused_argument) + << CPUArg->getAsString(Args); + CPUName = StringRef(WaCPU->getValue()).substr(6); + checkARMCPUName(D, WaCPU, Args, CPUName, ArchName, Features, Triple); + } else if (CPUArg) { + CPUName = CPUArg->getValue(); + checkARMCPUName(D, CPUArg, Args, CPUName, ArchName, Features, Triple); + } + + // Add CPU features for generic CPUs + if (CPUName == "native") { + llvm::StringMap<bool> HostFeatures; + if (llvm::sys::getHostCPUFeatures(HostFeatures)) + for (auto &F : HostFeatures) + Features.push_back( + Args.MakeArgString((F.second ? "+" : "-") + F.first())); + } + + // Honor -mfpu=. ClangAs gives preference to -Wa,-mfpu=. + const Arg *FPUArg = Args.getLastArg(options::OPT_mfpu_EQ); + if (WaFPU) { + if (FPUArg) + D.Diag(clang::diag::warn_drv_unused_argument) + << FPUArg->getAsString(Args); + getARMFPUFeatures(D, WaFPU, Args, StringRef(WaFPU->getValue()).substr(6), + Features); + } else if (FPUArg) { + getARMFPUFeatures(D, FPUArg, Args, FPUArg->getValue(), Features); + } + + // Honor -mhwdiv=. ClangAs gives preference to -Wa,-mhwdiv=. + const Arg *HDivArg = Args.getLastArg(options::OPT_mhwdiv_EQ); + if (WaHDiv) { + if (HDivArg) + D.Diag(clang::diag::warn_drv_unused_argument) + << HDivArg->getAsString(Args); + getARMHWDivFeatures(D, WaHDiv, Args, + StringRef(WaHDiv->getValue()).substr(8), Features); + } else if (HDivArg) + getARMHWDivFeatures(D, HDivArg, Args, HDivArg->getValue(), Features); + + // Setting -msoft-float effectively disables NEON because of the GCC + // implementation, although the same isn't true of VFP or VFP3. + if (ABI == arm::FloatABI::Soft) { + Features.push_back("-neon"); + // Also need to explicitly disable features which imply NEON. + Features.push_back("-crypto"); + } + + // En/disable crc code generation. + if (Arg *A = Args.getLastArg(options::OPT_mcrc, options::OPT_mnocrc)) { + if (A->getOption().matches(options::OPT_mcrc)) + Features.push_back("+crc"); + else + Features.push_back("-crc"); + } + + // Look for the last occurrence of -mlong-calls or -mno-long-calls. If + // neither options are specified, see if we are compiling for kernel/kext and + // decide whether to pass "+long-calls" based on the OS and its version. + if (Arg *A = Args.getLastArg(options::OPT_mlong_calls, + options::OPT_mno_long_calls)) { + if (A->getOption().matches(options::OPT_mlong_calls)) + Features.push_back("+long-calls"); + } else if (KernelOrKext && (!Triple.isiOS() || Triple.isOSVersionLT(6)) && + !Triple.isWatchOS()) { + Features.push_back("+long-calls"); + } + + // Generate execute-only output (no data access to code sections). + // This only makes sense for the compiler, not for the assembler. + if (!ForAS) { + // Supported only on ARMv6T2 and ARMv7 and above. + // Cannot be combined with -mno-movt or -mlong-calls + if (Arg *A = Args.getLastArg(options::OPT_mexecute_only, options::OPT_mno_execute_only)) { + if (A->getOption().matches(options::OPT_mexecute_only)) { + if (getARMSubArchVersionNumber(Triple) < 7 && + llvm::ARM::parseArch(Triple.getArchName()) != llvm::ARM::AK_ARMV6T2) + D.Diag(diag::err_target_unsupported_execute_only) << Triple.getArchName(); + else if (Arg *B = Args.getLastArg(options::OPT_mno_movt)) + D.Diag(diag::err_opt_not_valid_with_opt) << A->getAsString(Args) << B->getAsString(Args); + // Long calls create constant pool entries and have not yet been fixed up + // to play nicely with execute-only. Hence, they cannot be used in + // execute-only code for now + else if (Arg *B = Args.getLastArg(options::OPT_mlong_calls, options::OPT_mno_long_calls)) { + if (B->getOption().matches(options::OPT_mlong_calls)) + D.Diag(diag::err_opt_not_valid_with_opt) << A->getAsString(Args) << B->getAsString(Args); + } + Features.push_back("+execute-only"); + } + } + } + + // Kernel code has more strict alignment requirements. + if (KernelOrKext) + Features.push_back("+strict-align"); + else if (Arg *A = Args.getLastArg(options::OPT_mno_unaligned_access, + options::OPT_munaligned_access)) { + if (A->getOption().matches(options::OPT_munaligned_access)) { + // No v6M core supports unaligned memory access (v6M ARM ARM A3.2). + if (Triple.getSubArch() == llvm::Triple::SubArchType::ARMSubArch_v6m) + D.Diag(diag::err_target_unsupported_unaligned) << "v6m"; + // v8M Baseline follows on from v6M, so doesn't support unaligned memory + // access either. + else if (Triple.getSubArch() == llvm::Triple::SubArchType::ARMSubArch_v8m_baseline) + D.Diag(diag::err_target_unsupported_unaligned) << "v8m.base"; + } else + Features.push_back("+strict-align"); + } else { + // Assume pre-ARMv6 doesn't support unaligned accesses. + // + // ARMv6 may or may not support unaligned accesses depending on the + // SCTLR.U bit, which is architecture-specific. We assume ARMv6 + // Darwin and NetBSD targets support unaligned accesses, and others don't. + // + // ARMv7 always has SCTLR.U set to 1, but it has a new SCTLR.A bit + // which raises an alignment fault on unaligned accesses. Linux + // defaults this bit to 0 and handles it as a system-wide (not + // per-process) setting. It is therefore safe to assume that ARMv7+ + // Linux targets support unaligned accesses. The same goes for NaCl. + // + // The above behavior is consistent with GCC. + int VersionNum = getARMSubArchVersionNumber(Triple); + if (Triple.isOSDarwin() || Triple.isOSNetBSD()) { + if (VersionNum < 6 || + Triple.getSubArch() == llvm::Triple::SubArchType::ARMSubArch_v6m) + Features.push_back("+strict-align"); + } else if (Triple.isOSLinux() || Triple.isOSNaCl()) { + if (VersionNum < 7) + Features.push_back("+strict-align"); + } else + Features.push_back("+strict-align"); + } + + // llvm does not support reserving registers in general. There is support + // for reserving r9 on ARM though (defined as a platform-specific register + // in ARM EABI). + if (Args.hasArg(options::OPT_ffixed_r9)) + Features.push_back("+reserve-r9"); + + // The kext linker doesn't know how to deal with movw/movt. + if (KernelOrKext || Args.hasArg(options::OPT_mno_movt)) + Features.push_back("+no-movt"); + + if (Args.hasArg(options::OPT_mno_neg_immediates)) + Features.push_back("+no-neg-immediates"); +} + +const std::string arm::getARMArch(StringRef Arch, const llvm::Triple &Triple) { + std::string MArch; + if (!Arch.empty()) + MArch = Arch; + else + MArch = Triple.getArchName(); + MArch = StringRef(MArch).split("+").first.lower(); + + // Handle -march=native. + if (MArch == "native") { + std::string CPU = llvm::sys::getHostCPUName(); + if (CPU != "generic") { + // Translate the native cpu into the architecture suffix for that CPU. + StringRef Suffix = arm::getLLVMArchSuffixForARM(CPU, MArch, Triple); + // If there is no valid architecture suffix for this CPU we don't know how + // to handle it, so return no architecture. + if (Suffix.empty()) + MArch = ""; + else + MArch = std::string("arm") + Suffix.str(); + } + } + + return MArch; +} + +/// Get the (LLVM) name of the minimum ARM CPU for the arch we are targeting. +StringRef arm::getARMCPUForMArch(StringRef Arch, const llvm::Triple &Triple) { + std::string MArch = getARMArch(Arch, Triple); + // getARMCPUForArch defaults to the triple if MArch is empty, but empty MArch + // here means an -march=native that we can't handle, so instead return no CPU. + if (MArch.empty()) + return StringRef(); + + // We need to return an empty string here on invalid MArch values as the + // various places that call this function can't cope with a null result. + return Triple.getARMCPUForArch(MArch); +} + +/// getARMTargetCPU - Get the (LLVM) name of the ARM cpu we are targeting. +std::string arm::getARMTargetCPU(StringRef CPU, StringRef Arch, + const llvm::Triple &Triple) { + // FIXME: Warn on inconsistent use of -mcpu and -march. + // If we have -mcpu=, use that. + if (!CPU.empty()) { + std::string MCPU = StringRef(CPU).split("+").first.lower(); + // Handle -mcpu=native. + if (MCPU == "native") + return llvm::sys::getHostCPUName(); + else + return MCPU; + } + + return getARMCPUForMArch(Arch, Triple); +} + +/// getLLVMArchSuffixForARM - Get the LLVM arch name to use for a particular +/// CPU (or Arch, if CPU is generic). +// FIXME: This is redundant with -mcpu, why does LLVM use this. +StringRef arm::getLLVMArchSuffixForARM(StringRef CPU, StringRef Arch, + const llvm::Triple &Triple) { + unsigned ArchKind; + if (CPU == "generic") { + std::string ARMArch = tools::arm::getARMArch(Arch, Triple); + ArchKind = llvm::ARM::parseArch(ARMArch); + if (ArchKind == llvm::ARM::AK_INVALID) + // In case of generic Arch, i.e. "arm", + // extract arch from default cpu of the Triple + ArchKind = llvm::ARM::parseCPUArch(Triple.getARMCPUForArch(ARMArch)); + } else { + // FIXME: horrible hack to get around the fact that Cortex-A7 is only an + // armv7k triple if it's actually been specified via "-arch armv7k". + ArchKind = (Arch == "armv7k" || Arch == "thumbv7k") + ? (unsigned)llvm::ARM::AK_ARMV7K + : llvm::ARM::parseCPUArch(CPU); + } + if (ArchKind == llvm::ARM::AK_INVALID) + return ""; + return llvm::ARM::getSubArch(ArchKind); +} + +void arm::appendEBLinkFlags(const ArgList &Args, ArgStringList &CmdArgs, + const llvm::Triple &Triple) { + if (Args.hasArg(options::OPT_r)) + return; + + // ARMv7 (and later) and ARMv6-M do not support BE-32, so instruct the linker + // to generate BE-8 executables. + if (arm::getARMSubArchVersionNumber(Triple) >= 7 || arm::isARMMProfile(Triple)) + CmdArgs.push_back("--be8"); +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/ARM.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/ARM.h new file mode 100644 index 0000000..52afaab --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/ARM.h @@ -0,0 +1,60 @@ +//===--- ARM.h - ARM-specific (not AArch64) Tool Helpers --------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_ARM_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_ARM_H + +#include "clang/Driver/ToolChain.h" +#include "llvm/ADT/StringRef.h" +#include "llvm/ADT/Triple.h" +#include "llvm/Option/Option.h" +#include <string> +#include <vector> + +namespace clang { +namespace driver { +namespace tools { +namespace arm { + +std::string getARMTargetCPU(StringRef CPU, llvm::StringRef Arch, + const llvm::Triple &Triple); +const std::string getARMArch(llvm::StringRef Arch, const llvm::Triple &Triple); +StringRef getARMCPUForMArch(llvm::StringRef Arch, const llvm::Triple &Triple); +StringRef getLLVMArchSuffixForARM(llvm::StringRef CPU, llvm::StringRef Arch, + const llvm::Triple &Triple); + +void appendEBLinkFlags(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs, + const llvm::Triple &Triple); +enum class FloatABI { + Invalid, + Soft, + SoftFP, + Hard, +}; + +FloatABI getARMFloatABI(const ToolChain &TC, const llvm::opt::ArgList &Args); + +bool useAAPCSForMachO(const llvm::Triple &T); +void getARMArchCPUFromArgs(const llvm::opt::ArgList &Args, + llvm::StringRef &Arch, llvm::StringRef &CPU, + bool FromAs = false); +void getARMTargetFeatures(const ToolChain &TC, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs, + std::vector<llvm::StringRef> &Features, bool ForAS); +int getARMSubArchVersionNumber(const llvm::Triple &Triple); +bool isARMMProfile(const llvm::Triple &Triple); + +} // end namespace arm +} // end namespace tools +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_ARM_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/Mips.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/Mips.cpp new file mode 100644 index 0000000..b45dcd6 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/Mips.cpp @@ -0,0 +1,407 @@ +//===--- Mips.cpp - Tools Implementations -----------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "Mips.h" +#include "ToolChains/CommonArgs.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Options.h" +#include "llvm/ADT/StringSwitch.h" +#include "llvm/Option/ArgList.h" + +using namespace clang::driver; +using namespace clang::driver::tools; +using namespace clang; +using namespace llvm::opt; + +bool tools::isMipsArch(llvm::Triple::ArchType Arch) { + return Arch == llvm::Triple::mips || Arch == llvm::Triple::mipsel || + Arch == llvm::Triple::mips64 || Arch == llvm::Triple::mips64el; +} + +// Get CPU and ABI names. They are not independent +// so we have to calculate them together. +void mips::getMipsCPUAndABI(const ArgList &Args, const llvm::Triple &Triple, + StringRef &CPUName, StringRef &ABIName) { + const char *DefMips32CPU = "mips32r2"; + const char *DefMips64CPU = "mips64r2"; + + // MIPS32r6 is the default for mips(el)?-img-linux-gnu and MIPS64r6 is the + // default for mips64(el)?-img-linux-gnu. + if (Triple.getVendor() == llvm::Triple::ImaginationTechnologies && + Triple.getEnvironment() == llvm::Triple::GNU) { + DefMips32CPU = "mips32r6"; + DefMips64CPU = "mips64r6"; + } + + // MIPS64r6 is the default for Android MIPS64 (mips64el-linux-android). + if (Triple.isAndroid()) { + DefMips32CPU = "mips32"; + DefMips64CPU = "mips64r6"; + } + + // MIPS3 is the default for mips64*-unknown-openbsd. + if (Triple.getOS() == llvm::Triple::OpenBSD) + DefMips64CPU = "mips3"; + + if (Arg *A = Args.getLastArg(clang::driver::options::OPT_march_EQ, + options::OPT_mcpu_EQ)) + CPUName = A->getValue(); + + if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) { + ABIName = A->getValue(); + // Convert a GNU style Mips ABI name to the name + // accepted by LLVM Mips backend. + ABIName = llvm::StringSwitch<llvm::StringRef>(ABIName) + .Case("32", "o32") + .Case("64", "n64") + .Default(ABIName); + } + + // Setup default CPU and ABI names. + if (CPUName.empty() && ABIName.empty()) { + switch (Triple.getArch()) { + default: + llvm_unreachable("Unexpected triple arch name"); + case llvm::Triple::mips: + case llvm::Triple::mipsel: + CPUName = DefMips32CPU; + break; + case llvm::Triple::mips64: + case llvm::Triple::mips64el: + CPUName = DefMips64CPU; + break; + } + } + + if (ABIName.empty() && + (Triple.getVendor() == llvm::Triple::MipsTechnologies || + Triple.getVendor() == llvm::Triple::ImaginationTechnologies)) { + ABIName = llvm::StringSwitch<const char *>(CPUName) + .Case("mips1", "o32") + .Case("mips2", "o32") + .Case("mips3", "n64") + .Case("mips4", "n64") + .Case("mips5", "n64") + .Case("mips32", "o32") + .Case("mips32r2", "o32") + .Case("mips32r3", "o32") + .Case("mips32r5", "o32") + .Case("mips32r6", "o32") + .Case("mips64", "n64") + .Case("mips64r2", "n64") + .Case("mips64r3", "n64") + .Case("mips64r5", "n64") + .Case("mips64r6", "n64") + .Case("octeon", "n64") + .Case("p5600", "o32") + .Default(""); + } + + if (ABIName.empty()) { + // Deduce ABI name from the target triple. + if (Triple.getArch() == llvm::Triple::mips || + Triple.getArch() == llvm::Triple::mipsel) + ABIName = "o32"; + else + ABIName = "n64"; + } + + if (CPUName.empty()) { + // Deduce CPU name from ABI name. + CPUName = llvm::StringSwitch<const char *>(ABIName) + .Case("o32", DefMips32CPU) + .Cases("n32", "n64", DefMips64CPU) + .Default(""); + } + + // FIXME: Warn on inconsistent use of -march and -mabi. +} + +std::string mips::getMipsABILibSuffix(const ArgList &Args, + const llvm::Triple &Triple) { + StringRef CPUName, ABIName; + tools::mips::getMipsCPUAndABI(Args, Triple, CPUName, ABIName); + return llvm::StringSwitch<std::string>(ABIName) + .Case("o32", "") + .Case("n32", "32") + .Case("n64", "64"); +} + +// Convert ABI name to the GNU tools acceptable variant. +StringRef mips::getGnuCompatibleMipsABIName(StringRef ABI) { + return llvm::StringSwitch<llvm::StringRef>(ABI) + .Case("o32", "32") + .Case("n64", "64") + .Default(ABI); +} + +// Select the MIPS float ABI as determined by -msoft-float, -mhard-float, +// and -mfloat-abi=. +mips::FloatABI mips::getMipsFloatABI(const Driver &D, const ArgList &Args) { + mips::FloatABI ABI = mips::FloatABI::Invalid; + if (Arg *A = + Args.getLastArg(options::OPT_msoft_float, options::OPT_mhard_float, + options::OPT_mfloat_abi_EQ)) { + if (A->getOption().matches(options::OPT_msoft_float)) + ABI = mips::FloatABI::Soft; + else if (A->getOption().matches(options::OPT_mhard_float)) + ABI = mips::FloatABI::Hard; + else { + ABI = llvm::StringSwitch<mips::FloatABI>(A->getValue()) + .Case("soft", mips::FloatABI::Soft) + .Case("hard", mips::FloatABI::Hard) + .Default(mips::FloatABI::Invalid); + if (ABI == mips::FloatABI::Invalid && !StringRef(A->getValue()).empty()) { + D.Diag(clang::diag::err_drv_invalid_mfloat_abi) << A->getAsString(Args); + ABI = mips::FloatABI::Hard; + } + } + } + + // If unspecified, choose the default based on the platform. + if (ABI == mips::FloatABI::Invalid) { + // Assume "hard", because it's a default value used by gcc. + // When we start to recognize specific target MIPS processors, + // we will be able to select the default more correctly. + ABI = mips::FloatABI::Hard; + } + + assert(ABI != mips::FloatABI::Invalid && "must select an ABI"); + return ABI; +} + +void mips::getMIPSTargetFeatures(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args, + std::vector<StringRef> &Features) { + StringRef CPUName; + StringRef ABIName; + getMipsCPUAndABI(Args, Triple, CPUName, ABIName); + ABIName = getGnuCompatibleMipsABIName(ABIName); + + // Historically, PIC code for MIPS was associated with -mabicalls, a.k.a + // SVR4 abicalls. Static code does not use SVR4 calling sequences. An ABI + // extension was developed by Richard Sandiford & Code Sourcery to support + // static code calling PIC code (CPIC). For O32 and N32 this means we have + // several combinations of PIC/static and abicalls. Pure static, static + // with the CPIC extension, and pure PIC code. + + // At final link time, O32 and N32 with CPIC will have another section + // added to the binary which contains the stub functions to perform + // any fixups required for PIC code. + + // For N64, the situation is more regular: code can either be static + // (non-abicalls) or PIC (abicalls). GCC has traditionally picked PIC code + // code for N64. Since Clang has already built the relocation model portion + // of the commandline, we pick add +noabicalls feature in the N64 static + // case. + + // The is another case to be accounted for: -msym32, which enforces that all + // symbols have 32 bits in size. In this case, N64 can in theory use CPIC + // but it is unsupported. + + // The combinations for N64 are: + // a) Static without abicalls and 64bit symbols. + // b) Static with abicalls and 32bit symbols. + // c) PIC with abicalls and 64bit symbols. + + // For case (a) we need to add +noabicalls for N64. + + bool IsN64 = ABIName == "64"; + bool NonPIC = false; + + Arg *LastPICArg = Args.getLastArg(options::OPT_fPIC, options::OPT_fno_PIC, + options::OPT_fpic, options::OPT_fno_pic, + options::OPT_fPIE, options::OPT_fno_PIE, + options::OPT_fpie, options::OPT_fno_pie); + if (LastPICArg) { + Option O = LastPICArg->getOption(); + NonPIC = + (O.matches(options::OPT_fno_PIC) || O.matches(options::OPT_fno_pic) || + O.matches(options::OPT_fno_PIE) || O.matches(options::OPT_fno_pie)); + } + + if (IsN64 && NonPIC) + Features.push_back("+noabicalls"); + else + AddTargetFeature(Args, Features, options::OPT_mno_abicalls, + options::OPT_mabicalls, "noabicalls"); + + mips::FloatABI FloatABI = mips::getMipsFloatABI(D, Args); + if (FloatABI == mips::FloatABI::Soft) { + // FIXME: Note, this is a hack. We need to pass the selected float + // mode to the MipsTargetInfoBase to define appropriate macros there. + // Now it is the only method. + Features.push_back("+soft-float"); + } + + if (Arg *A = Args.getLastArg(options::OPT_mnan_EQ)) { + StringRef Val = StringRef(A->getValue()); + if (Val == "2008") { + if (mips::getSupportedNanEncoding(CPUName) & mips::Nan2008) + Features.push_back("+nan2008"); + else { + Features.push_back("-nan2008"); + D.Diag(diag::warn_target_unsupported_nan2008) << CPUName; + } + } else if (Val == "legacy") { + if (mips::getSupportedNanEncoding(CPUName) & mips::NanLegacy) + Features.push_back("-nan2008"); + else { + Features.push_back("+nan2008"); + D.Diag(diag::warn_target_unsupported_nanlegacy) << CPUName; + } + } else + D.Diag(diag::err_drv_unsupported_option_argument) + << A->getOption().getName() << Val; + } + + AddTargetFeature(Args, Features, options::OPT_msingle_float, + options::OPT_mdouble_float, "single-float"); + AddTargetFeature(Args, Features, options::OPT_mips16, options::OPT_mno_mips16, + "mips16"); + AddTargetFeature(Args, Features, options::OPT_mmicromips, + options::OPT_mno_micromips, "micromips"); + AddTargetFeature(Args, Features, options::OPT_mdsp, options::OPT_mno_dsp, + "dsp"); + AddTargetFeature(Args, Features, options::OPT_mdspr2, options::OPT_mno_dspr2, + "dspr2"); + AddTargetFeature(Args, Features, options::OPT_mmsa, options::OPT_mno_msa, + "msa"); + + // Add the last -mfp32/-mfpxx/-mfp64, if none are given and the ABI is O32 + // pass -mfpxx, or if none are given and fp64a is default, pass fp64 and + // nooddspreg. + if (Arg *A = Args.getLastArg(options::OPT_mfp32, options::OPT_mfpxx, + options::OPT_mfp64)) { + if (A->getOption().matches(options::OPT_mfp32)) + Features.push_back("-fp64"); + else if (A->getOption().matches(options::OPT_mfpxx)) { + Features.push_back("+fpxx"); + Features.push_back("+nooddspreg"); + } else + Features.push_back("+fp64"); + } else if (mips::shouldUseFPXX(Args, Triple, CPUName, ABIName, FloatABI)) { + Features.push_back("+fpxx"); + Features.push_back("+nooddspreg"); + } else if (mips::isFP64ADefault(Triple, CPUName)) { + Features.push_back("+fp64"); + Features.push_back("+nooddspreg"); + } + + AddTargetFeature(Args, Features, options::OPT_mno_odd_spreg, + options::OPT_modd_spreg, "nooddspreg"); + AddTargetFeature(Args, Features, options::OPT_mno_madd4, options::OPT_mmadd4, + "nomadd4"); + AddTargetFeature(Args, Features, options::OPT_mlong_calls, + options::OPT_mno_long_calls, "long-calls"); + AddTargetFeature(Args, Features, options::OPT_mmt, options::OPT_mno_mt,"mt"); +} + +mips::NanEncoding mips::getSupportedNanEncoding(StringRef &CPU) { + // Strictly speaking, mips32r2 and mips64r2 are NanLegacy-only since Nan2008 + // was first introduced in Release 3. However, other compilers have + // traditionally allowed it for Release 2 so we should do the same. + return (NanEncoding)llvm::StringSwitch<int>(CPU) + .Case("mips1", NanLegacy) + .Case("mips2", NanLegacy) + .Case("mips3", NanLegacy) + .Case("mips4", NanLegacy) + .Case("mips5", NanLegacy) + .Case("mips32", NanLegacy) + .Case("mips32r2", NanLegacy | Nan2008) + .Case("mips32r3", NanLegacy | Nan2008) + .Case("mips32r5", NanLegacy | Nan2008) + .Case("mips32r6", Nan2008) + .Case("mips64", NanLegacy) + .Case("mips64r2", NanLegacy | Nan2008) + .Case("mips64r3", NanLegacy | Nan2008) + .Case("mips64r5", NanLegacy | Nan2008) + .Case("mips64r6", Nan2008) + .Default(NanLegacy); +} + +bool mips::hasCompactBranches(StringRef &CPU) { + // mips32r6 and mips64r6 have compact branches. + return llvm::StringSwitch<bool>(CPU) + .Case("mips32r6", true) + .Case("mips64r6", true) + .Default(false); +} + +bool mips::hasMipsAbiArg(const ArgList &Args, const char *Value) { + Arg *A = Args.getLastArg(options::OPT_mabi_EQ); + return A && (A->getValue() == StringRef(Value)); +} + +bool mips::isUCLibc(const ArgList &Args) { + Arg *A = Args.getLastArg(options::OPT_m_libc_Group); + return A && A->getOption().matches(options::OPT_muclibc); +} + +bool mips::isNaN2008(const ArgList &Args, const llvm::Triple &Triple) { + if (Arg *NaNArg = Args.getLastArg(options::OPT_mnan_EQ)) + return llvm::StringSwitch<bool>(NaNArg->getValue()) + .Case("2008", true) + .Case("legacy", false) + .Default(false); + + // NaN2008 is the default for MIPS32r6/MIPS64r6. + return llvm::StringSwitch<bool>(getCPUName(Args, Triple)) + .Cases("mips32r6", "mips64r6", true) + .Default(false); + + return false; +} + +bool mips::isFP64ADefault(const llvm::Triple &Triple, StringRef CPUName) { + if (!Triple.isAndroid()) + return false; + + // Android MIPS32R6 defaults to FP64A. + return llvm::StringSwitch<bool>(CPUName) + .Case("mips32r6", true) + .Default(false); +} + +bool mips::isFPXXDefault(const llvm::Triple &Triple, StringRef CPUName, + StringRef ABIName, mips::FloatABI FloatABI) { + if (Triple.getVendor() != llvm::Triple::ImaginationTechnologies && + Triple.getVendor() != llvm::Triple::MipsTechnologies && + !Triple.isAndroid()) + return false; + + if (ABIName != "32") + return false; + + // FPXX shouldn't be used if either -msoft-float or -mfloat-abi=soft is + // present. + if (FloatABI == mips::FloatABI::Soft) + return false; + + return llvm::StringSwitch<bool>(CPUName) + .Cases("mips2", "mips3", "mips4", "mips5", true) + .Cases("mips32", "mips32r2", "mips32r3", "mips32r5", true) + .Cases("mips64", "mips64r2", "mips64r3", "mips64r5", true) + .Default(false); +} + +bool mips::shouldUseFPXX(const ArgList &Args, const llvm::Triple &Triple, + StringRef CPUName, StringRef ABIName, + mips::FloatABI FloatABI) { + bool UseFPXX = isFPXXDefault(Triple, CPUName, ABIName, FloatABI); + + // FPXX shouldn't be used if -msingle-float is present. + if (Arg *A = Args.getLastArg(options::OPT_msingle_float, + options::OPT_mdouble_float)) + if (A->getOption().matches(options::OPT_msingle_float)) + UseFPXX = false; + + return UseFPXX; +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/Mips.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/Mips.h new file mode 100644 index 0000000..0b78866 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/Mips.h @@ -0,0 +1,62 @@ +//===--- Mips.h - Mips-specific Tool Helpers ----------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_MIPS_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_MIPS_H + +#include "clang/Driver/Driver.h" +#include "llvm/ADT/StringRef.h" +#include "llvm/ADT/Triple.h" +#include "llvm/Option/Option.h" +#include <string> +#include <vector> + +namespace clang { +namespace driver { +namespace tools { + +bool isMipsArch(llvm::Triple::ArchType Arch); + +namespace mips { +typedef enum { NanLegacy = 1, Nan2008 = 2 } NanEncoding; + +enum class FloatABI { + Invalid, + Soft, + Hard, +}; + +NanEncoding getSupportedNanEncoding(StringRef &CPU); +bool hasCompactBranches(StringRef &CPU); +void getMipsCPUAndABI(const llvm::opt::ArgList &Args, + const llvm::Triple &Triple, StringRef &CPUName, + StringRef &ABIName); +void getMIPSTargetFeatures(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args, + std::vector<StringRef> &Features); +StringRef getGnuCompatibleMipsABIName(StringRef ABI); +mips::FloatABI getMipsFloatABI(const Driver &D, const llvm::opt::ArgList &Args); +std::string getMipsABILibSuffix(const llvm::opt::ArgList &Args, + const llvm::Triple &Triple); +bool hasMipsAbiArg(const llvm::opt::ArgList &Args, const char *Value); +bool isUCLibc(const llvm::opt::ArgList &Args); +bool isNaN2008(const llvm::opt::ArgList &Args, const llvm::Triple &Triple); +bool isFP64ADefault(const llvm::Triple &Triple, StringRef CPUName); +bool isFPXXDefault(const llvm::Triple &Triple, StringRef CPUName, + StringRef ABIName, mips::FloatABI FloatABI); +bool shouldUseFPXX(const llvm::opt::ArgList &Args, const llvm::Triple &Triple, + StringRef CPUName, StringRef ABIName, + mips::FloatABI FloatABI); + +} // end namespace mips +} // end namespace target +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_MIPS_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/PPC.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/PPC.cpp new file mode 100644 index 0000000..5413231 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/PPC.cpp @@ -0,0 +1,131 @@ +//===--- PPC.cpp - PPC Helpers for Tools ------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "PPC.h" +#include "ToolChains/CommonArgs.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Options.h" +#include "llvm/ADT/StringSwitch.h" +#include "llvm/Option/ArgList.h" + +using namespace clang::driver; +using namespace clang::driver::tools; +using namespace clang; +using namespace llvm::opt; + +/// getPPCTargetCPU - Get the (LLVM) name of the PowerPC cpu we are targeting. +std::string ppc::getPPCTargetCPU(const ArgList &Args) { + if (Arg *A = Args.getLastArg(clang::driver::options::OPT_mcpu_EQ)) { + StringRef CPUName = A->getValue(); + + if (CPUName == "native") { + std::string CPU = llvm::sys::getHostCPUName(); + if (!CPU.empty() && CPU != "generic") + return CPU; + else + return ""; + } + + return llvm::StringSwitch<const char *>(CPUName) + .Case("common", "generic") + .Case("440", "440") + .Case("440fp", "440") + .Case("450", "450") + .Case("601", "601") + .Case("602", "602") + .Case("603", "603") + .Case("603e", "603e") + .Case("603ev", "603ev") + .Case("604", "604") + .Case("604e", "604e") + .Case("620", "620") + .Case("630", "pwr3") + .Case("G3", "g3") + .Case("7400", "7400") + .Case("G4", "g4") + .Case("7450", "7450") + .Case("G4+", "g4+") + .Case("750", "750") + .Case("970", "970") + .Case("G5", "g5") + .Case("a2", "a2") + .Case("a2q", "a2q") + .Case("e500mc", "e500mc") + .Case("e5500", "e5500") + .Case("power3", "pwr3") + .Case("power4", "pwr4") + .Case("power5", "pwr5") + .Case("power5x", "pwr5x") + .Case("power6", "pwr6") + .Case("power6x", "pwr6x") + .Case("power7", "pwr7") + .Case("power8", "pwr8") + .Case("power9", "pwr9") + .Case("pwr3", "pwr3") + .Case("pwr4", "pwr4") + .Case("pwr5", "pwr5") + .Case("pwr5x", "pwr5x") + .Case("pwr6", "pwr6") + .Case("pwr6x", "pwr6x") + .Case("pwr7", "pwr7") + .Case("pwr8", "pwr8") + .Case("pwr9", "pwr9") + .Case("powerpc", "ppc") + .Case("powerpc64", "ppc64") + .Case("powerpc64le", "ppc64le") + .Default(""); + } + + return ""; +} + +void ppc::getPPCTargetFeatures(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args, + std::vector<StringRef> &Features) { + handleTargetFeaturesGroup(Args, Features, options::OPT_m_ppc_Features_Group); + + ppc::FloatABI FloatABI = ppc::getPPCFloatABI(D, Args); + if (FloatABI == ppc::FloatABI::Soft) + Features.push_back("-hard-float"); +} + +ppc::FloatABI ppc::getPPCFloatABI(const Driver &D, const ArgList &Args) { + ppc::FloatABI ABI = ppc::FloatABI::Invalid; + if (Arg *A = + Args.getLastArg(options::OPT_msoft_float, options::OPT_mhard_float, + options::OPT_mfloat_abi_EQ)) { + if (A->getOption().matches(options::OPT_msoft_float)) + ABI = ppc::FloatABI::Soft; + else if (A->getOption().matches(options::OPT_mhard_float)) + ABI = ppc::FloatABI::Hard; + else { + ABI = llvm::StringSwitch<ppc::FloatABI>(A->getValue()) + .Case("soft", ppc::FloatABI::Soft) + .Case("hard", ppc::FloatABI::Hard) + .Default(ppc::FloatABI::Invalid); + if (ABI == ppc::FloatABI::Invalid && !StringRef(A->getValue()).empty()) { + D.Diag(clang::diag::err_drv_invalid_mfloat_abi) << A->getAsString(Args); + ABI = ppc::FloatABI::Hard; + } + } + } + + // If unspecified, choose the default based on the platform. + if (ABI == ppc::FloatABI::Invalid) { + ABI = ppc::FloatABI::Hard; + } + + return ABI; +} + +bool ppc::hasPPCAbiArg(const ArgList &Args, const char *Value) { + Arg *A = Args.getLastArg(options::OPT_mabi_EQ); + return A && (A->getValue() == StringRef(Value)); +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/PPC.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/PPC.h new file mode 100644 index 0000000..892eb2c --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/PPC.h @@ -0,0 +1,45 @@ +//===--- PPC.h - PPC-specific Tool Helpers ----------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_PPC_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_PPC_H + +#include "clang/Driver/Driver.h" +#include "llvm/ADT/StringRef.h" +#include "llvm/Option/Option.h" +#include <string> +#include <vector> + +namespace clang { +namespace driver { +namespace tools { +namespace ppc { + +bool hasPPCAbiArg(const llvm::opt::ArgList &Args, const char *Value); + +enum class FloatABI { + Invalid, + Soft, + Hard, +}; + +FloatABI getPPCFloatABI(const Driver &D, const llvm::opt::ArgList &Args); + +std::string getPPCTargetCPU(const llvm::opt::ArgList &Args); + +void getPPCTargetFeatures(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args, + std::vector<llvm::StringRef> &Features); + +} // end namespace ppc +} // end namespace target +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_PPC_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/Sparc.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/Sparc.cpp new file mode 100644 index 0000000..594ec99 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/Sparc.cpp @@ -0,0 +1,100 @@ +//===--- Sparc.cpp - Tools Implementations ----------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "Sparc.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Options.h" +#include "llvm/ADT/StringSwitch.h" +#include "llvm/Option/ArgList.h" + +using namespace clang::driver; +using namespace clang::driver::tools; +using namespace clang; +using namespace llvm::opt; + +const char *sparc::getSparcAsmModeForCPU(StringRef Name, + const llvm::Triple &Triple) { + if (Triple.getArch() == llvm::Triple::sparcv9) { + return llvm::StringSwitch<const char *>(Name) + .Case("niagara", "-Av9b") + .Case("niagara2", "-Av9b") + .Case("niagara3", "-Av9d") + .Case("niagara4", "-Av9d") + .Default("-Av9"); + } else { + return llvm::StringSwitch<const char *>(Name) + .Case("v8", "-Av8") + .Case("supersparc", "-Av8") + .Case("sparclite", "-Asparclite") + .Case("f934", "-Asparclite") + .Case("hypersparc", "-Av8") + .Case("sparclite86x", "-Asparclite") + .Case("sparclet", "-Asparclet") + .Case("tsc701", "-Asparclet") + .Case("v9", "-Av8plus") + .Case("ultrasparc", "-Av8plus") + .Case("ultrasparc3", "-Av8plus") + .Case("niagara", "-Av8plusb") + .Case("niagara2", "-Av8plusb") + .Case("niagara3", "-Av8plusd") + .Case("niagara4", "-Av8plusd") + .Case("leon2", "-Av8") + .Case("at697e", "-Av8") + .Case("at697f", "-Av8") + .Case("leon3", "-Av8") + .Case("ut699", "-Av8") + .Case("gr712rc", "-Av8") + .Case("leon4", "-Av8") + .Case("gr740", "-Av8") + .Default("-Av8"); + } +} + +sparc::FloatABI sparc::getSparcFloatABI(const Driver &D, + const ArgList &Args) { + sparc::FloatABI ABI = sparc::FloatABI::Invalid; + if (Arg *A = Args.getLastArg(clang::driver::options::OPT_msoft_float, + options::OPT_mhard_float, + options::OPT_mfloat_abi_EQ)) { + if (A->getOption().matches(clang::driver::options::OPT_msoft_float)) + ABI = sparc::FloatABI::Soft; + else if (A->getOption().matches(options::OPT_mhard_float)) + ABI = sparc::FloatABI::Hard; + else { + ABI = llvm::StringSwitch<sparc::FloatABI>(A->getValue()) + .Case("soft", sparc::FloatABI::Soft) + .Case("hard", sparc::FloatABI::Hard) + .Default(sparc::FloatABI::Invalid); + if (ABI == sparc::FloatABI::Invalid && + !StringRef(A->getValue()).empty()) { + D.Diag(clang::diag::err_drv_invalid_mfloat_abi) << A->getAsString(Args); + ABI = sparc::FloatABI::Hard; + } + } + } + + // If unspecified, choose the default based on the platform. + // Only the hard-float ABI on Sparc is standardized, and it is the + // default. GCC also supports a nonstandard soft-float ABI mode, also + // implemented in LLVM. However as this is not standard we set the default + // to be hard-float. + if (ABI == sparc::FloatABI::Invalid) { + ABI = sparc::FloatABI::Hard; + } + + return ABI; +} + +void sparc::getSparcTargetFeatures(const Driver &D, const ArgList &Args, + std::vector<StringRef> &Features) { + sparc::FloatABI FloatABI = sparc::getSparcFloatABI(D, Args); + if (FloatABI == sparc::FloatABI::Soft) + Features.push_back("+soft-float"); +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/Sparc.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/Sparc.h new file mode 100644 index 0000000..082b280 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/Sparc.h @@ -0,0 +1,42 @@ +//===--- Sparc.h - Sparc-specific Tool Helpers ----------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_SPARC_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_SPARC_H + +#include "clang/Driver/Driver.h" +#include "llvm/ADT/StringRef.h" +#include "llvm/Option/Option.h" +#include <string> +#include <vector> + +namespace clang { +namespace driver { +namespace tools { +namespace sparc { + +enum class FloatABI { + Invalid, + Soft, + Hard, +}; + +FloatABI getSparcFloatABI(const Driver &D, const llvm::opt::ArgList &Args); + +void getSparcTargetFeatures(const Driver &D, const llvm::opt::ArgList &Args, + std::vector<llvm::StringRef> &Features); +const char *getSparcAsmModeForCPU(llvm::StringRef Name, + const llvm::Triple &Triple); + +} // end namespace sparc +} // end namespace target +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_SPARC_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/SystemZ.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/SystemZ.cpp new file mode 100644 index 0000000..6ee724d --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/SystemZ.cpp @@ -0,0 +1,41 @@ +//===--- SystemZ.cpp - SystemZ Helpers for Tools ----------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "SystemZ.h" +#include "clang/Driver/Options.h" +#include "llvm/Option/ArgList.h" + +using namespace clang::driver; +using namespace clang::driver::tools; +using namespace clang; +using namespace llvm::opt; + +const char *systemz::getSystemZTargetCPU(const ArgList &Args) { + if (const Arg *A = Args.getLastArg(clang::driver::options::OPT_march_EQ)) + return A->getValue(); + return "z10"; +} + +void systemz::getSystemZTargetFeatures(const ArgList &Args, + std::vector<llvm::StringRef> &Features) { + // -m(no-)htm overrides use of the transactional-execution facility. + if (Arg *A = Args.getLastArg(options::OPT_mhtm, options::OPT_mno_htm)) { + if (A->getOption().matches(options::OPT_mhtm)) + Features.push_back("+transactional-execution"); + else + Features.push_back("-transactional-execution"); + } + // -m(no-)vx overrides use of the vector facility. + if (Arg *A = Args.getLastArg(options::OPT_mvx, options::OPT_mno_vx)) { + if (A->getOption().matches(options::OPT_mvx)) + Features.push_back("+vector"); + else + Features.push_back("-vector"); + } +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/SystemZ.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/SystemZ.h new file mode 100644 index 0000000..521f8c2 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/SystemZ.h @@ -0,0 +1,32 @@ +//===--- SystemZ.h - SystemZ-specific Tool Helpers --------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_SYSTEMZ_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_SYSTEMZ_H + +#include "llvm/ADT/StringRef.h" +#include "llvm/Option/Option.h" +#include <vector> + +namespace clang { +namespace driver { +namespace tools { +namespace systemz { + +const char *getSystemZTargetCPU(const llvm::opt::ArgList &Args); + +void getSystemZTargetFeatures(const llvm::opt::ArgList &Args, + std::vector<llvm::StringRef> &Features); + +} // end namespace systemz +} // end namespace target +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_SYSTEMZ_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/X86.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/X86.cpp new file mode 100644 index 0000000..a85a7f1 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/X86.cpp @@ -0,0 +1,173 @@ +//===--- X86.cpp - X86 Helpers for Tools ------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "X86.h" +#include "ToolChains/CommonArgs.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Options.h" +#include "llvm/ADT/StringSwitch.h" +#include "llvm/Option/ArgList.h" + +using namespace clang::driver; +using namespace clang::driver::tools; +using namespace clang; +using namespace llvm::opt; + +const char *x86::getX86TargetCPU(const ArgList &Args, + const llvm::Triple &Triple) { + if (const Arg *A = Args.getLastArg(clang::driver::options::OPT_march_EQ)) { + if (StringRef(A->getValue()) != "native") { + if (Triple.isOSDarwin() && Triple.getArchName() == "x86_64h") + return "core-avx2"; + + return A->getValue(); + } + + // FIXME: Reject attempts to use -march=native unless the target matches + // the host. + // + // FIXME: We should also incorporate the detected target features for use + // with -native. + std::string CPU = llvm::sys::getHostCPUName(); + if (!CPU.empty() && CPU != "generic") + return Args.MakeArgString(CPU); + } + + if (const Arg *A = Args.getLastArg(options::OPT__SLASH_arch)) { + // Mapping built by referring to X86TargetInfo::getDefaultFeatures(). + StringRef Arch = A->getValue(); + const char *CPU; + if (Triple.getArch() == llvm::Triple::x86) { + CPU = llvm::StringSwitch<const char *>(Arch) + .Case("IA32", "i386") + .Case("SSE", "pentium3") + .Case("SSE2", "pentium4") + .Case("AVX", "sandybridge") + .Case("AVX2", "haswell") + .Default(nullptr); + } else { + CPU = llvm::StringSwitch<const char *>(Arch) + .Case("AVX", "sandybridge") + .Case("AVX2", "haswell") + .Default(nullptr); + } + if (CPU) + return CPU; + } + + // Select the default CPU if none was given (or detection failed). + + if (Triple.getArch() != llvm::Triple::x86_64 && + Triple.getArch() != llvm::Triple::x86) + return nullptr; // This routine is only handling x86 targets. + + bool Is64Bit = Triple.getArch() == llvm::Triple::x86_64; + + // FIXME: Need target hooks. + if (Triple.isOSDarwin()) { + if (Triple.getArchName() == "x86_64h") + return "core-avx2"; + // macosx10.12 drops support for all pre-Penryn Macs. + // Simulators can still run on 10.11 though, like Xcode. + if (Triple.isMacOSX() && !Triple.isOSVersionLT(10, 12)) + return "penryn"; + // The oldest x86_64 Macs have core2/Merom; the oldest x86 Macs have Yonah. + return Is64Bit ? "core2" : "yonah"; + } + + // Set up default CPU name for PS4 compilers. + if (Triple.isPS4CPU()) + return "btver2"; + + // On Android use targets compatible with gcc + if (Triple.isAndroid()) + return Is64Bit ? "x86-64" : "i686"; + + // Everything else goes to x86-64 in 64-bit mode. + if (Is64Bit) + return "x86-64"; + + switch (Triple.getOS()) { + case llvm::Triple::FreeBSD: + case llvm::Triple::NetBSD: + case llvm::Triple::OpenBSD: + return "i486"; + case llvm::Triple::Haiku: + return "i586"; + case llvm::Triple::Bitrig: + return "i686"; + default: + // Fallback to p4. + return "pentium4"; + } +} + +void x86::getX86TargetFeatures(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args, + std::vector<StringRef> &Features) { + // If -march=native, autodetect the feature list. + if (const Arg *A = Args.getLastArg(clang::driver::options::OPT_march_EQ)) { + if (StringRef(A->getValue()) == "native") { + llvm::StringMap<bool> HostFeatures; + if (llvm::sys::getHostCPUFeatures(HostFeatures)) + for (auto &F : HostFeatures) + Features.push_back( + Args.MakeArgString((F.second ? "+" : "-") + F.first())); + } + } + + if (Triple.getArchName() == "x86_64h") { + // x86_64h implies quite a few of the more modern subtarget features + // for Haswell class CPUs, but not all of them. Opt-out of a few. + Features.push_back("-rdrnd"); + Features.push_back("-aes"); + Features.push_back("-pclmul"); + Features.push_back("-rtm"); + Features.push_back("-fsgsbase"); + } + + const llvm::Triple::ArchType ArchType = Triple.getArch(); + // Add features to be compatible with gcc for Android. + if (Triple.isAndroid()) { + if (ArchType == llvm::Triple::x86_64) { + Features.push_back("+sse4.2"); + Features.push_back("+popcnt"); + } else + Features.push_back("+ssse3"); + } + + // Set features according to the -arch flag on MSVC. + if (Arg *A = Args.getLastArg(options::OPT__SLASH_arch)) { + StringRef Arch = A->getValue(); + bool ArchUsed = false; + // First, look for flags that are shared in x86 and x86-64. + if (ArchType == llvm::Triple::x86_64 || ArchType == llvm::Triple::x86) { + if (Arch == "AVX" || Arch == "AVX2") { + ArchUsed = true; + Features.push_back(Args.MakeArgString("+" + Arch.lower())); + } + } + // Then, look for x86-specific flags. + if (ArchType == llvm::Triple::x86) { + if (Arch == "IA32") { + ArchUsed = true; + } else if (Arch == "SSE" || Arch == "SSE2") { + ArchUsed = true; + Features.push_back(Args.MakeArgString("+" + Arch.lower())); + } + } + if (!ArchUsed) + D.Diag(clang::diag::warn_drv_unused_argument) << A->getAsString(Args); + } + + // Now add any that the user explicitly requested on the command line, + // which may override the defaults. + handleTargetFeaturesGroup(Args, Features, options::OPT_m_x86_Features_Group); +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/X86.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/X86.h new file mode 100644 index 0000000..20bf27a --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Arch/X86.h @@ -0,0 +1,37 @@ +//===--- X86.h - X86-specific Tool Helpers ----------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_X86_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_X86_H + +#include "clang/Driver/Driver.h" +#include "llvm/ADT/StringRef.h" +#include "llvm/ADT/Triple.h" +#include "llvm/Option/Option.h" +#include <string> +#include <vector> + +namespace clang { +namespace driver { +namespace tools { +namespace x86 { + +const char *getX86TargetCPU(const llvm::opt::ArgList &Args, + const llvm::Triple &Triple); + +void getX86TargetFeatures(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args, + std::vector<llvm::StringRef> &Features); + +} // end namespace x86 +} // end namespace target +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_ARCH_X86_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/BareMetal.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/BareMetal.cpp new file mode 100644 index 0000000..5dc6dfa --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/BareMetal.cpp @@ -0,0 +1,211 @@ +//===--- BaremMetal.cpp - Bare Metal ToolChain ------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "BareMetal.h" + +#include "CommonArgs.h" +#include "InputInfo.h" +#include "Gnu.h" + +#include "clang/Basic/VirtualFileSystem.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Options.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Support/Path.h" +#include "llvm/Support/raw_ostream.h" + +using namespace llvm::opt; +using namespace clang; +using namespace clang::driver; +using namespace clang::driver::tools; +using namespace clang::driver::toolchains; + +BareMetal::BareMetal(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : ToolChain(D, Triple, Args) { + getProgramPaths().push_back(getDriver().getInstalledDir()); + if (getDriver().getInstalledDir() != getDriver().Dir) + getProgramPaths().push_back(getDriver().Dir); +} + +BareMetal::~BareMetal() {} + +/// Is the triple {arm,thumb}-none-none-{eabi,eabihf} ? +static bool isARMBareMetal(const llvm::Triple &Triple) { + if (Triple.getArch() != llvm::Triple::arm && + Triple.getArch() != llvm::Triple::thumb) + return false; + + if (Triple.getVendor() != llvm::Triple::UnknownVendor) + return false; + + if (Triple.getOS() != llvm::Triple::UnknownOS) + return false; + + if (Triple.getEnvironment() != llvm::Triple::EABI && + Triple.getEnvironment() != llvm::Triple::EABIHF) + return false; + + return true; +} + +bool BareMetal::handlesTarget(const llvm::Triple &Triple) { + return isARMBareMetal(Triple); +} + +Tool *BareMetal::buildLinker() const { + return new tools::baremetal::Linker(*this); +} + +std::string BareMetal::getThreadModel() const { + return "single"; +} + +bool BareMetal::isThreadModelSupported(const StringRef Model) const { + return Model == "single"; +} + +std::string BareMetal::getRuntimesDir() const { + SmallString<128> Dir(getDriver().ResourceDir); + llvm::sys::path::append(Dir, "lib", "baremetal"); + return Dir.str(); +} + +void BareMetal::AddClangSystemIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + if (DriverArgs.hasArg(options::OPT_nostdinc)) + return; + + if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) { + SmallString<128> Dir(getDriver().ResourceDir); + llvm::sys::path::append(Dir, "include"); + addSystemInclude(DriverArgs, CC1Args, Dir.str()); + } + + if (!DriverArgs.hasArg(options::OPT_nostdlibinc)) { + SmallString<128> Dir(getDriver().SysRoot); + llvm::sys::path::append(Dir, "include"); + addSystemInclude(DriverArgs, CC1Args, Dir.str()); + } +} + +void BareMetal::addClangTargetOptions(const ArgList &DriverArgs, + ArgStringList &CC1Args, + Action::OffloadKind) const { + CC1Args.push_back("-nostdsysteminc"); +} + +std::string BareMetal::findLibCxxIncludePath(CXXStdlibType LibType) const { + StringRef SysRoot = getDriver().SysRoot; + if (SysRoot.empty()) + return ""; + + switch (LibType) { + case ToolChain::CST_Libcxx: { + SmallString<128> Dir(SysRoot); + llvm::sys::path::append(Dir, "include", "c++", "v1"); + return Dir.str(); + } + case ToolChain::CST_Libstdcxx: { + SmallString<128> Dir(SysRoot); + llvm::sys::path::append(Dir, "include", "c++"); + std::error_code EC; + Generic_GCC::GCCVersion Version = {"", -1, -1, -1, "", "", ""}; + // Walk the subdirs, and find the one with the newest gcc version: + for (vfs::directory_iterator LI = + getDriver().getVFS().dir_begin(Dir.str(), EC), LE; + !EC && LI != LE; LI = LI.increment(EC)) { + StringRef VersionText = llvm::sys::path::filename(LI->getName()); + auto CandidateVersion = Generic_GCC::GCCVersion::Parse(VersionText); + if (CandidateVersion.Major == -1) + continue; + if (CandidateVersion <= Version) + continue; + Version = CandidateVersion; + } + if (Version.Major == -1) + return ""; + llvm::sys::path::append(Dir, Version.Text); + return Dir.str(); + } + } + llvm_unreachable("unhandled LibType"); +} + +void BareMetal::AddClangCXXStdlibIncludeArgs( + const ArgList &DriverArgs, ArgStringList &CC1Args) const { + if (DriverArgs.hasArg(options::OPT_nostdinc) || + DriverArgs.hasArg(options::OPT_nostdlibinc) || + DriverArgs.hasArg(options::OPT_nostdincxx)) + return; + + std::string Path = findLibCxxIncludePath(GetCXXStdlibType(DriverArgs)); + if (!Path.empty()) + addSystemInclude(DriverArgs, CC1Args, Path); +} + +void BareMetal::AddCXXStdlibLibArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + switch (GetCXXStdlibType(Args)) { + case ToolChain::CST_Libcxx: + CmdArgs.push_back("-lc++"); + CmdArgs.push_back("-lc++abi"); + break; + case ToolChain::CST_Libstdcxx: + CmdArgs.push_back("-lstdc++"); + CmdArgs.push_back("-lsupc++"); + break; + } + CmdArgs.push_back("-lunwind"); +} + +void BareMetal::AddLinkRuntimeLib(const ArgList &Args, + ArgStringList &CmdArgs) const { + CmdArgs.push_back(Args.MakeArgString("-lclang_rt.builtins-" + + getTriple().getArchName() + ".a")); +} + +void baremetal::Linker::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + ArgStringList CmdArgs; + + auto &TC = static_cast<const toolchains::BareMetal&>(getToolChain()); + + AddLinkerInputs(TC, Inputs, Args, CmdArgs, JA); + + CmdArgs.push_back("-Bstatic"); + + CmdArgs.push_back(Args.MakeArgString("-L" + TC.getRuntimesDir())); + + Args.AddAllArgs(CmdArgs, {options::OPT_L, options::OPT_T_Group, + options::OPT_e, options::OPT_s, options::OPT_t, + options::OPT_Z_Flag, options::OPT_r}); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { + if (C.getDriver().CCCIsCXX()) + TC.AddCXXStdlibLibArgs(Args, CmdArgs); + + CmdArgs.push_back("-lc"); + CmdArgs.push_back("-lm"); + + TC.AddLinkRuntimeLib(Args, CmdArgs); + } + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + C.addCommand(llvm::make_unique<Command>(JA, *this, + Args.MakeArgString(TC.GetLinkerPath()), + CmdArgs, Inputs)); +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/BareMetal.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/BareMetal.h new file mode 100644 index 0000000..4b74899 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/BareMetal.h @@ -0,0 +1,91 @@ +//===--- BareMetal.h - Bare Metal Tool and ToolChain -------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_BAREMETAL_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_BAREMETAL_H + +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" + +#include <string> + +namespace clang { +namespace driver { + +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY BareMetal : public ToolChain { +public: + BareMetal(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + ~BareMetal() override; + + static bool handlesTarget(const llvm::Triple &Triple); +protected: + Tool *buildLinker() const override; + +public: + bool useIntegratedAs() const override { return true; } + bool isCrossCompiling() const override { return true; } + bool isPICDefault() const override { return false; } + bool isPIEDefault() const override { return false; } + bool isPICDefaultForced() const override { return false; } + bool SupportsProfiling() const override { return false; } + bool SupportsObjCGC() const override { return false; } + std::string getThreadModel() const override; + bool isThreadModelSupported(const StringRef Model) const override; + + RuntimeLibType GetDefaultRuntimeLibType() const override { + return ToolChain::RLT_CompilerRT; + } + CXXStdlibType GetDefaultCXXStdlibType() const override { + return ToolChain::CST_Libcxx; + } + + const char *getDefaultLinker() const override { return "ld.lld"; } + + std::string getRuntimesDir() const; + void AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + void addClangTargetOptions(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args, + Action::OffloadKind DeviceOffloadKind) const override; + std::string findLibCxxIncludePath(ToolChain::CXXStdlibType LibType) const; + void AddClangCXXStdlibIncludeArgs( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + void AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const override; + void AddLinkRuntimeLib(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const; +}; + +} // namespace toolchains + +namespace tools { +namespace baremetal { + +class LLVM_LIBRARY_VISIBILITY Linker : public Tool { +public: + Linker(const ToolChain &TC) : Tool("baremetal::Linker", "ld.lld", TC) {} + bool isLinkJob() const override { return true; } + bool hasIntegratedCPP() const override { return false; } + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +} // namespace baremetal +} // namespace tools + +} // namespace driver +} // namespace clang + +#endif diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Bitrig.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Bitrig.cpp new file mode 100644 index 0000000..d8f541d --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Bitrig.cpp @@ -0,0 +1,190 @@ +//===--- Bitrig.cpp - Bitrig ToolChain Implementations ----------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "Bitrig.h" +#include "CommonArgs.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Options.h" +#include "llvm/Option/ArgList.h" + +using namespace clang::driver; +using namespace clang::driver::toolchains; +using namespace clang::driver::tools; +using namespace clang; +using namespace llvm::opt; + +void bitrig::Assembler::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + claimNoWarnArgs(Args); + ArgStringList CmdArgs; + + Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + for (const auto &II : Inputs) + CmdArgs.push_back(II.getFilename()); + + const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as")); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +void bitrig::Linker::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + const Driver &D = getToolChain().getDriver(); + ArgStringList CmdArgs; + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_shared)) { + CmdArgs.push_back("-e"); + CmdArgs.push_back("__start"); + } + + if (Args.hasArg(options::OPT_static)) { + CmdArgs.push_back("-Bstatic"); + } else { + if (Args.hasArg(options::OPT_rdynamic)) + CmdArgs.push_back("-export-dynamic"); + CmdArgs.push_back("--eh-frame-hdr"); + CmdArgs.push_back("-Bdynamic"); + if (Args.hasArg(options::OPT_shared)) { + CmdArgs.push_back("-shared"); + } else { + CmdArgs.push_back("-dynamic-linker"); + CmdArgs.push_back("/usr/libexec/ld.so"); + } + } + + if (Output.isFilename()) { + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + } else { + assert(Output.isNothing() && "Invalid output."); + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + if (!Args.hasArg(options::OPT_shared)) { + if (Args.hasArg(options::OPT_pg)) + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("gcrt0.o"))); + else + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crt0.o"))); + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o"))); + } else { + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtbeginS.o"))); + } + } + + Args.AddAllArgs(CmdArgs, + {options::OPT_L, options::OPT_T_Group, options::OPT_e}); + + AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { + if (D.CCCIsCXX()) { + getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs); + if (Args.hasArg(options::OPT_pg)) + CmdArgs.push_back("-lm_p"); + else + CmdArgs.push_back("-lm"); + } + + if (Args.hasArg(options::OPT_pthread)) { + if (!Args.hasArg(options::OPT_shared) && Args.hasArg(options::OPT_pg)) + CmdArgs.push_back("-lpthread_p"); + else + CmdArgs.push_back("-lpthread"); + } + + if (!Args.hasArg(options::OPT_shared)) { + if (Args.hasArg(options::OPT_pg)) + CmdArgs.push_back("-lc_p"); + else + CmdArgs.push_back("-lc"); + } + + StringRef MyArch; + switch (getToolChain().getArch()) { + case llvm::Triple::arm: + MyArch = "arm"; + break; + case llvm::Triple::x86: + MyArch = "i386"; + break; + case llvm::Triple::x86_64: + MyArch = "amd64"; + break; + default: + llvm_unreachable("Unsupported architecture"); + } + CmdArgs.push_back(Args.MakeArgString("-lclang_rt." + MyArch)); + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + if (!Args.hasArg(options::OPT_shared)) + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtend.o"))); + else + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtendS.o"))); + } + + const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath()); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +/// Bitrig - Bitrig tool chain which can call as(1) and ld(1) directly. + +Bitrig::Bitrig(const Driver &D, const llvm::Triple &Triple, const ArgList &Args) + : Generic_ELF(D, Triple, Args) { + getFilePaths().push_back(getDriver().Dir + "/../lib"); + getFilePaths().push_back("/usr/lib"); +} + +Tool *Bitrig::buildAssembler() const { + return new tools::bitrig::Assembler(*this); +} + +Tool *Bitrig::buildLinker() const { return new tools::bitrig::Linker(*this); } + +ToolChain::CXXStdlibType Bitrig::GetDefaultCXXStdlibType() const { + return ToolChain::CST_Libcxx; +} + +void Bitrig::addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const { + std::string Triple = getTriple().str(); + if (StringRef(Triple).startswith("amd64")) + Triple = "x86_64" + Triple.substr(5); + addLibStdCXXIncludePaths(getDriver().SysRoot, "/usr/include/c++/stdc++", + Triple, "", "", "", DriverArgs, CC1Args); +} + +void Bitrig::AddCXXStdlibLibArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + switch (GetCXXStdlibType(Args)) { + case ToolChain::CST_Libcxx: + CmdArgs.push_back("-lc++"); + CmdArgs.push_back("-lc++abi"); + CmdArgs.push_back("-lpthread"); + break; + case ToolChain::CST_Libstdcxx: + CmdArgs.push_back("-lstdc++"); + break; + } +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Bitrig.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Bitrig.h new file mode 100644 index 0000000..6edb2e8 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Bitrig.h @@ -0,0 +1,79 @@ +//===--- Bitrig.h - Bitrig ToolChain Implementations ------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_BITRIG_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_BITRIG_H + +#include "Gnu.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace tools { +/// bitrig -- Directly call GNU Binutils assembler and linker +namespace bitrig { +class LLVM_LIBRARY_VISIBILITY Assembler : public GnuTool { +public: + Assembler(const ToolChain &TC) + : GnuTool("bitrig::Assembler", "assembler", TC) {} + + bool hasIntegratedCPP() const override { return false; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +class LLVM_LIBRARY_VISIBILITY Linker : public GnuTool { +public: + Linker(const ToolChain &TC) : GnuTool("bitrig::Linker", "linker", TC) {} + + bool hasIntegratedCPP() const override { return false; } + bool isLinkJob() const override { return true; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; +} // end namespace bitrig +} // end namespace tools + +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY Bitrig : public Generic_ELF { +public: + Bitrig(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + + bool IsMathErrnoDefault() const override { return false; } + bool IsObjCNonFragileABIDefault() const override { return true; } + + CXXStdlibType GetDefaultCXXStdlibType() const override; + void addLibStdCxxIncludePaths( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + void AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const override; + unsigned GetDefaultStackProtectorLevel(bool KernelOrKext) const override { + return 1; + } + +protected: + Tool *buildAssembler() const override; + Tool *buildLinker() const override; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_BITRIG_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Clang.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Clang.cpp new file mode 100644 index 0000000..6a6b90f --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Clang.cpp @@ -0,0 +1,5271 @@ +//===--- LLVM.cpp - Clang+LLVM ToolChain Implementations --------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "Clang.h" +#include "Arch/AArch64.h" +#include "Arch/ARM.h" +#include "Arch/Mips.h" +#include "Arch/PPC.h" +#include "Arch/Sparc.h" +#include "Arch/SystemZ.h" +#include "Arch/X86.h" +#include "CommonArgs.h" +#include "Hexagon.h" +#include "InputInfo.h" +#include "PS4CPU.h" +#include "clang/Basic/CharInfo.h" +#include "clang/Basic/LangOptions.h" +#include "clang/Basic/ObjCRuntime.h" +#include "clang/Basic/Version.h" +#include "clang/Config/config.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Options.h" +#include "clang/Driver/SanitizerArgs.h" +#include "clang/Driver/XRayArgs.h" +#include "llvm/ADT/StringExtras.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Support/CodeGen.h" +#include "llvm/Support/Compression.h" +#include "llvm/Support/FileSystem.h" +#include "llvm/Support/Path.h" +#include "llvm/Support/Process.h" +#include "llvm/Support/TargetParser.h" +#include "llvm/Support/YAMLParser.h" + +#ifdef LLVM_ON_UNIX +#include <unistd.h> // For getuid(). +#endif + +using namespace clang::driver; +using namespace clang::driver::tools; +using namespace clang; +using namespace llvm::opt; + +static void CheckPreprocessingOptions(const Driver &D, const ArgList &Args) { + if (Arg *A = + Args.getLastArg(clang::driver::options::OPT_C, options::OPT_CC)) { + if (!Args.hasArg(options::OPT_E) && !Args.hasArg(options::OPT__SLASH_P) && + !Args.hasArg(options::OPT__SLASH_EP) && !D.CCCIsCPP()) { + D.Diag(clang::diag::err_drv_argument_only_allowed_with) + << A->getBaseArg().getAsString(Args) + << (D.IsCLMode() ? "/E, /P or /EP" : "-E"); + } + } +} + +static void CheckCodeGenerationOptions(const Driver &D, const ArgList &Args) { + // In gcc, only ARM checks this, but it seems reasonable to check universally. + if (Args.hasArg(options::OPT_static)) + if (const Arg *A = + Args.getLastArg(options::OPT_dynamic, options::OPT_mdynamic_no_pic)) + D.Diag(diag::err_drv_argument_not_allowed_with) << A->getAsString(Args) + << "-static"; +} + +// Add backslashes to escape spaces and other backslashes. +// This is used for the space-separated argument list specified with +// the -dwarf-debug-flags option. +static void EscapeSpacesAndBackslashes(const char *Arg, + SmallVectorImpl<char> &Res) { + for (; *Arg; ++Arg) { + switch (*Arg) { + default: + break; + case ' ': + case '\\': + Res.push_back('\\'); + break; + } + Res.push_back(*Arg); + } +} + +// Quote target names for inclusion in GNU Make dependency files. +// Only the characters '$', '#', ' ', '\t' are quoted. +static void QuoteTarget(StringRef Target, SmallVectorImpl<char> &Res) { + for (unsigned i = 0, e = Target.size(); i != e; ++i) { + switch (Target[i]) { + case ' ': + case '\t': + // Escape the preceding backslashes + for (int j = i - 1; j >= 0 && Target[j] == '\\'; --j) + Res.push_back('\\'); + + // Escape the space/tab + Res.push_back('\\'); + break; + case '$': + Res.push_back('$'); + break; + case '#': + Res.push_back('\\'); + break; + default: + break; + } + + Res.push_back(Target[i]); + } +} + +/// Apply \a Work on the current tool chain \a RegularToolChain and any other +/// offloading tool chain that is associated with the current action \a JA. +static void +forAllAssociatedToolChains(Compilation &C, const JobAction &JA, + const ToolChain &RegularToolChain, + llvm::function_ref<void(const ToolChain &)> Work) { + // Apply Work on the current/regular tool chain. + Work(RegularToolChain); + + // Apply Work on all the offloading tool chains associated with the current + // action. + if (JA.isHostOffloading(Action::OFK_Cuda)) + Work(*C.getSingleOffloadToolChain<Action::OFK_Cuda>()); + else if (JA.isDeviceOffloading(Action::OFK_Cuda)) + Work(*C.getSingleOffloadToolChain<Action::OFK_Host>()); + + if (JA.isHostOffloading(Action::OFK_OpenMP)) { + auto TCs = C.getOffloadToolChains<Action::OFK_OpenMP>(); + for (auto II = TCs.first, IE = TCs.second; II != IE; ++II) + Work(*II->second); + } else if (JA.isDeviceOffloading(Action::OFK_OpenMP)) + Work(*C.getSingleOffloadToolChain<Action::OFK_Host>()); + + // + // TODO: Add support for other offloading programming models here. + // +} + +/// This is a helper function for validating the optional refinement step +/// parameter in reciprocal argument strings. Return false if there is an error +/// parsing the refinement step. Otherwise, return true and set the Position +/// of the refinement step in the input string. +static bool getRefinementStep(StringRef In, const Driver &D, + const Arg &A, size_t &Position) { + const char RefinementStepToken = ':'; + Position = In.find(RefinementStepToken); + if (Position != StringRef::npos) { + StringRef Option = A.getOption().getName(); + StringRef RefStep = In.substr(Position + 1); + // Allow exactly one numeric character for the additional refinement + // step parameter. This is reasonable for all currently-supported + // operations and architectures because we would expect that a larger value + // of refinement steps would cause the estimate "optimization" to + // under-perform the native operation. Also, if the estimate does not + // converge quickly, it probably will not ever converge, so further + // refinement steps will not produce a better answer. + if (RefStep.size() != 1) { + D.Diag(diag::err_drv_invalid_value) << Option << RefStep; + return false; + } + char RefStepChar = RefStep[0]; + if (RefStepChar < '0' || RefStepChar > '9') { + D.Diag(diag::err_drv_invalid_value) << Option << RefStep; + return false; + } + } + return true; +} + +/// The -mrecip flag requires processing of many optional parameters. +static void ParseMRecip(const Driver &D, const ArgList &Args, + ArgStringList &OutStrings) { + StringRef DisabledPrefixIn = "!"; + StringRef DisabledPrefixOut = "!"; + StringRef EnabledPrefixOut = ""; + StringRef Out = "-mrecip="; + + Arg *A = Args.getLastArg(options::OPT_mrecip, options::OPT_mrecip_EQ); + if (!A) + return; + + unsigned NumOptions = A->getNumValues(); + if (NumOptions == 0) { + // No option is the same as "all". + OutStrings.push_back(Args.MakeArgString(Out + "all")); + return; + } + + // Pass through "all", "none", or "default" with an optional refinement step. + if (NumOptions == 1) { + StringRef Val = A->getValue(0); + size_t RefStepLoc; + if (!getRefinementStep(Val, D, *A, RefStepLoc)) + return; + StringRef ValBase = Val.slice(0, RefStepLoc); + if (ValBase == "all" || ValBase == "none" || ValBase == "default") { + OutStrings.push_back(Args.MakeArgString(Out + Val)); + return; + } + } + + // Each reciprocal type may be enabled or disabled individually. + // Check each input value for validity, concatenate them all back together, + // and pass through. + + llvm::StringMap<bool> OptionStrings; + OptionStrings.insert(std::make_pair("divd", false)); + OptionStrings.insert(std::make_pair("divf", false)); + OptionStrings.insert(std::make_pair("vec-divd", false)); + OptionStrings.insert(std::make_pair("vec-divf", false)); + OptionStrings.insert(std::make_pair("sqrtd", false)); + OptionStrings.insert(std::make_pair("sqrtf", false)); + OptionStrings.insert(std::make_pair("vec-sqrtd", false)); + OptionStrings.insert(std::make_pair("vec-sqrtf", false)); + + for (unsigned i = 0; i != NumOptions; ++i) { + StringRef Val = A->getValue(i); + + bool IsDisabled = Val.startswith(DisabledPrefixIn); + // Ignore the disablement token for string matching. + if (IsDisabled) + Val = Val.substr(1); + + size_t RefStep; + if (!getRefinementStep(Val, D, *A, RefStep)) + return; + + StringRef ValBase = Val.slice(0, RefStep); + llvm::StringMap<bool>::iterator OptionIter = OptionStrings.find(ValBase); + if (OptionIter == OptionStrings.end()) { + // Try again specifying float suffix. + OptionIter = OptionStrings.find(ValBase.str() + 'f'); + if (OptionIter == OptionStrings.end()) { + // The input name did not match any known option string. + D.Diag(diag::err_drv_unknown_argument) << Val; + return; + } + // The option was specified without a float or double suffix. + // Make sure that the double entry was not already specified. + // The float entry will be checked below. + if (OptionStrings[ValBase.str() + 'd']) { + D.Diag(diag::err_drv_invalid_value) << A->getOption().getName() << Val; + return; + } + } + + if (OptionIter->second == true) { + // Duplicate option specified. + D.Diag(diag::err_drv_invalid_value) << A->getOption().getName() << Val; + return; + } + + // Mark the matched option as found. Do not allow duplicate specifiers. + OptionIter->second = true; + + // If the precision was not specified, also mark the double entry as found. + if (ValBase.back() != 'f' && ValBase.back() != 'd') + OptionStrings[ValBase.str() + 'd'] = true; + + // Build the output string. + StringRef Prefix = IsDisabled ? DisabledPrefixOut : EnabledPrefixOut; + Out = Args.MakeArgString(Out + Prefix + Val); + if (i != NumOptions - 1) + Out = Args.MakeArgString(Out + ","); + } + + OutStrings.push_back(Args.MakeArgString(Out)); +} + +static void getHexagonTargetFeatures(const ArgList &Args, + std::vector<StringRef> &Features) { + handleTargetFeaturesGroup(Args, Features, + options::OPT_m_hexagon_Features_Group); + + bool UseLongCalls = false; + if (Arg *A = Args.getLastArg(options::OPT_mlong_calls, + options::OPT_mno_long_calls)) { + if (A->getOption().matches(options::OPT_mlong_calls)) + UseLongCalls = true; + } + + Features.push_back(UseLongCalls ? "+long-calls" : "-long-calls"); +} + +static void getWebAssemblyTargetFeatures(const ArgList &Args, + std::vector<StringRef> &Features) { + handleTargetFeaturesGroup(Args, Features, options::OPT_m_wasm_Features_Group); +} + +static void getAMDGPUTargetFeatures(const Driver &D, const ArgList &Args, + std::vector<StringRef> &Features) { + if (const Arg *dAbi = Args.getLastArg(options::OPT_mamdgpu_debugger_abi)) { + StringRef value = dAbi->getValue(); + if (value == "1.0") { + Features.push_back("+amdgpu-debugger-insert-nops"); + Features.push_back("+amdgpu-debugger-reserve-regs"); + Features.push_back("+amdgpu-debugger-emit-prologue"); + } else { + D.Diag(diag::err_drv_clang_unsupported) << dAbi->getAsString(Args); + } + } + + handleTargetFeaturesGroup( + Args, Features, options::OPT_m_amdgpu_Features_Group); +} + +static void getTargetFeatures(const ToolChain &TC, const llvm::Triple &Triple, + const ArgList &Args, ArgStringList &CmdArgs, + bool ForAS) { + const Driver &D = TC.getDriver(); + std::vector<StringRef> Features; + switch (Triple.getArch()) { + default: + break; + case llvm::Triple::mips: + case llvm::Triple::mipsel: + case llvm::Triple::mips64: + case llvm::Triple::mips64el: + mips::getMIPSTargetFeatures(D, Triple, Args, Features); + break; + + case llvm::Triple::arm: + case llvm::Triple::armeb: + case llvm::Triple::thumb: + case llvm::Triple::thumbeb: + arm::getARMTargetFeatures(TC, Triple, Args, CmdArgs, Features, ForAS); + break; + + case llvm::Triple::ppc: + case llvm::Triple::ppc64: + case llvm::Triple::ppc64le: + ppc::getPPCTargetFeatures(D, Triple, Args, Features); + break; + case llvm::Triple::systemz: + systemz::getSystemZTargetFeatures(Args, Features); + break; + case llvm::Triple::aarch64: + case llvm::Triple::aarch64_be: + aarch64::getAArch64TargetFeatures(D, Args, Features); + break; + case llvm::Triple::x86: + case llvm::Triple::x86_64: + x86::getX86TargetFeatures(D, Triple, Args, Features); + break; + case llvm::Triple::hexagon: + getHexagonTargetFeatures(Args, Features); + break; + case llvm::Triple::wasm32: + case llvm::Triple::wasm64: + getWebAssemblyTargetFeatures(Args, Features); + break; + case llvm::Triple::sparc: + case llvm::Triple::sparcel: + case llvm::Triple::sparcv9: + sparc::getSparcTargetFeatures(D, Args, Features); + break; + case llvm::Triple::r600: + case llvm::Triple::amdgcn: + getAMDGPUTargetFeatures(D, Args, Features); + break; + } + + // Find the last of each feature. + llvm::StringMap<unsigned> LastOpt; + for (unsigned I = 0, N = Features.size(); I < N; ++I) { + StringRef Name = Features[I]; + assert(Name[0] == '-' || Name[0] == '+'); + LastOpt[Name.drop_front(1)] = I; + } + + for (unsigned I = 0, N = Features.size(); I < N; ++I) { + // If this feature was overridden, ignore it. + StringRef Name = Features[I]; + llvm::StringMap<unsigned>::iterator LastI = LastOpt.find(Name.drop_front(1)); + assert(LastI != LastOpt.end()); + unsigned Last = LastI->second; + if (Last != I) + continue; + + CmdArgs.push_back("-target-feature"); + CmdArgs.push_back(Name.data()); + } +} + +static bool +shouldUseExceptionTablesForObjCExceptions(const ObjCRuntime &runtime, + const llvm::Triple &Triple) { + // We use the zero-cost exception tables for Objective-C if the non-fragile + // ABI is enabled or when compiling for x86_64 and ARM on Snow Leopard and + // later. + if (runtime.isNonFragile()) + return true; + + if (!Triple.isMacOSX()) + return false; + + return (!Triple.isMacOSXVersionLT(10, 5) && + (Triple.getArch() == llvm::Triple::x86_64 || + Triple.getArch() == llvm::Triple::arm)); +} + +/// Adds exception related arguments to the driver command arguments. There's a +/// master flag, -fexceptions and also language specific flags to enable/disable +/// C++ and Objective-C exceptions. This makes it possible to for example +/// disable C++ exceptions but enable Objective-C exceptions. +static void addExceptionArgs(const ArgList &Args, types::ID InputType, + const ToolChain &TC, bool KernelOrKext, + const ObjCRuntime &objcRuntime, + ArgStringList &CmdArgs) { + const Driver &D = TC.getDriver(); + const llvm::Triple &Triple = TC.getTriple(); + + if (KernelOrKext) { + // -mkernel and -fapple-kext imply no exceptions, so claim exception related + // arguments now to avoid warnings about unused arguments. + Args.ClaimAllArgs(options::OPT_fexceptions); + Args.ClaimAllArgs(options::OPT_fno_exceptions); + Args.ClaimAllArgs(options::OPT_fobjc_exceptions); + Args.ClaimAllArgs(options::OPT_fno_objc_exceptions); + Args.ClaimAllArgs(options::OPT_fcxx_exceptions); + Args.ClaimAllArgs(options::OPT_fno_cxx_exceptions); + return; + } + + // See if the user explicitly enabled exceptions. + bool EH = Args.hasFlag(options::OPT_fexceptions, options::OPT_fno_exceptions, + false); + + // Obj-C exceptions are enabled by default, regardless of -fexceptions. This + // is not necessarily sensible, but follows GCC. + if (types::isObjC(InputType) && + Args.hasFlag(options::OPT_fobjc_exceptions, + options::OPT_fno_objc_exceptions, true)) { + CmdArgs.push_back("-fobjc-exceptions"); + + EH |= shouldUseExceptionTablesForObjCExceptions(objcRuntime, Triple); + } + + if (types::isCXX(InputType)) { + // Disable C++ EH by default on XCore and PS4. + bool CXXExceptionsEnabled = + Triple.getArch() != llvm::Triple::xcore && !Triple.isPS4CPU(); + Arg *ExceptionArg = Args.getLastArg( + options::OPT_fcxx_exceptions, options::OPT_fno_cxx_exceptions, + options::OPT_fexceptions, options::OPT_fno_exceptions); + if (ExceptionArg) + CXXExceptionsEnabled = + ExceptionArg->getOption().matches(options::OPT_fcxx_exceptions) || + ExceptionArg->getOption().matches(options::OPT_fexceptions); + + if (CXXExceptionsEnabled) { + if (Triple.isPS4CPU()) { + ToolChain::RTTIMode RTTIMode = TC.getRTTIMode(); + assert(ExceptionArg && + "On the PS4 exceptions should only be enabled if passing " + "an argument"); + if (RTTIMode == ToolChain::RM_DisabledExplicitly) { + const Arg *RTTIArg = TC.getRTTIArg(); + assert(RTTIArg && "RTTI disabled explicitly but no RTTIArg!"); + D.Diag(diag::err_drv_argument_not_allowed_with) + << RTTIArg->getAsString(Args) << ExceptionArg->getAsString(Args); + } else if (RTTIMode == ToolChain::RM_EnabledImplicitly) + D.Diag(diag::warn_drv_enabling_rtti_with_exceptions); + } else + assert(TC.getRTTIMode() != ToolChain::RM_DisabledImplicitly); + + CmdArgs.push_back("-fcxx-exceptions"); + + EH = true; + } + } + + if (EH) + CmdArgs.push_back("-fexceptions"); +} + +static bool ShouldDisableAutolink(const ArgList &Args, const ToolChain &TC) { + bool Default = true; + if (TC.getTriple().isOSDarwin()) { + // The native darwin assembler doesn't support the linker_option directives, + // so we disable them if we think the .s file will be passed to it. + Default = TC.useIntegratedAs(); + } + return !Args.hasFlag(options::OPT_fautolink, options::OPT_fno_autolink, + Default); +} + +static bool ShouldDisableDwarfDirectory(const ArgList &Args, + const ToolChain &TC) { + bool UseDwarfDirectory = + Args.hasFlag(options::OPT_fdwarf_directory_asm, + options::OPT_fno_dwarf_directory_asm, TC.useIntegratedAs()); + return !UseDwarfDirectory; +} + +// Convert an arg of the form "-gN" or "-ggdbN" or one of their aliases +// to the corresponding DebugInfoKind. +static codegenoptions::DebugInfoKind DebugLevelToInfoKind(const Arg &A) { + assert(A.getOption().matches(options::OPT_gN_Group) && + "Not a -g option that specifies a debug-info level"); + if (A.getOption().matches(options::OPT_g0) || + A.getOption().matches(options::OPT_ggdb0)) + return codegenoptions::NoDebugInfo; + if (A.getOption().matches(options::OPT_gline_tables_only) || + A.getOption().matches(options::OPT_ggdb1)) + return codegenoptions::DebugLineTablesOnly; + return codegenoptions::LimitedDebugInfo; +} + +static bool mustUseNonLeafFramePointerForTarget(const llvm::Triple &Triple) { + switch (Triple.getArch()){ + default: + return false; + case llvm::Triple::arm: + case llvm::Triple::thumb: + // ARM Darwin targets require a frame pointer to be always present to aid + // offline debugging via backtraces. + return Triple.isOSDarwin(); + } +} + +static bool useFramePointerForTargetByDefault(const ArgList &Args, + const llvm::Triple &Triple) { + switch (Triple.getArch()) { + case llvm::Triple::xcore: + case llvm::Triple::wasm32: + case llvm::Triple::wasm64: + // XCore never wants frame pointers, regardless of OS. + // WebAssembly never wants frame pointers. + return false; + default: + break; + } + + if (Triple.isOSLinux() || Triple.getOS() == llvm::Triple::CloudABI) { + switch (Triple.getArch()) { + // Don't use a frame pointer on linux if optimizing for certain targets. + case llvm::Triple::mips64: + case llvm::Triple::mips64el: + case llvm::Triple::mips: + case llvm::Triple::mipsel: + case llvm::Triple::ppc: + case llvm::Triple::ppc64: + case llvm::Triple::ppc64le: + case llvm::Triple::systemz: + case llvm::Triple::x86: + case llvm::Triple::x86_64: + return !areOptimizationsEnabled(Args); + default: + return true; + } + } + + if (Triple.isOSWindows()) { + switch (Triple.getArch()) { + case llvm::Triple::x86: + return !areOptimizationsEnabled(Args); + case llvm::Triple::x86_64: + return Triple.isOSBinFormatMachO(); + case llvm::Triple::arm: + case llvm::Triple::thumb: + // Windows on ARM builds with FPO disabled to aid fast stack walking + return true; + default: + // All other supported Windows ISAs use xdata unwind information, so frame + // pointers are not generally useful. + return false; + } + } + + return true; +} + +static bool shouldUseFramePointer(const ArgList &Args, + const llvm::Triple &Triple) { + if (Arg *A = Args.getLastArg(options::OPT_fno_omit_frame_pointer, + options::OPT_fomit_frame_pointer)) + return A->getOption().matches(options::OPT_fno_omit_frame_pointer) || + mustUseNonLeafFramePointerForTarget(Triple); + + if (Args.hasArg(options::OPT_pg)) + return true; + + return useFramePointerForTargetByDefault(Args, Triple); +} + +static bool shouldUseLeafFramePointer(const ArgList &Args, + const llvm::Triple &Triple) { + if (Arg *A = Args.getLastArg(options::OPT_mno_omit_leaf_frame_pointer, + options::OPT_momit_leaf_frame_pointer)) + return A->getOption().matches(options::OPT_mno_omit_leaf_frame_pointer); + + if (Args.hasArg(options::OPT_pg)) + return true; + + if (Triple.isPS4CPU()) + return false; + + return useFramePointerForTargetByDefault(Args, Triple); +} + +/// Add a CC1 option to specify the debug compilation directory. +static void addDebugCompDirArg(const ArgList &Args, ArgStringList &CmdArgs) { + SmallString<128> cwd; + if (!llvm::sys::fs::current_path(cwd)) { + CmdArgs.push_back("-fdebug-compilation-dir"); + CmdArgs.push_back(Args.MakeArgString(cwd)); + } +} + +/// \brief Vectorize at all optimization levels greater than 1 except for -Oz. +/// For -Oz the loop vectorizer is disable, while the slp vectorizer is enabled. +static bool shouldEnableVectorizerAtOLevel(const ArgList &Args, bool isSlpVec) { + if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { + if (A->getOption().matches(options::OPT_O4) || + A->getOption().matches(options::OPT_Ofast)) + return true; + + if (A->getOption().matches(options::OPT_O0)) + return false; + + assert(A->getOption().matches(options::OPT_O) && "Must have a -O flag"); + + // Vectorize -Os. + StringRef S(A->getValue()); + if (S == "s") + return true; + + // Don't vectorize -Oz, unless it's the slp vectorizer. + if (S == "z") + return isSlpVec; + + unsigned OptLevel = 0; + if (S.getAsInteger(10, OptLevel)) + return false; + + return OptLevel > 1; + } + + return false; +} + +/// Add -x lang to \p CmdArgs for \p Input. +static void addDashXForInput(const ArgList &Args, const InputInfo &Input, + ArgStringList &CmdArgs) { + // When using -verify-pch, we don't want to provide the type + // 'precompiled-header' if it was inferred from the file extension + if (Args.hasArg(options::OPT_verify_pch) && Input.getType() == types::TY_PCH) + return; + + CmdArgs.push_back("-x"); + if (Args.hasArg(options::OPT_rewrite_objc)) + CmdArgs.push_back(types::getTypeName(types::TY_PP_ObjCXX)); + else { + // Map the driver type to the frontend type. This is mostly an identity + // mapping, except that the distinction between module interface units + // and other source files does not exist at the frontend layer. + const char *ClangType; + switch (Input.getType()) { + case types::TY_CXXModule: + ClangType = "c++"; + break; + case types::TY_PP_CXXModule: + ClangType = "c++-cpp-output"; + break; + default: + ClangType = types::getTypeName(Input.getType()); + break; + } + CmdArgs.push_back(ClangType); + } +} + +static void appendUserToPath(SmallVectorImpl<char> &Result) { +#ifdef LLVM_ON_UNIX + const char *Username = getenv("LOGNAME"); +#else + const char *Username = getenv("USERNAME"); +#endif + if (Username) { + // Validate that LoginName can be used in a path, and get its length. + size_t Len = 0; + for (const char *P = Username; *P; ++P, ++Len) { + if (!clang::isAlphanumeric(*P) && *P != '_') { + Username = nullptr; + break; + } + } + + if (Username && Len > 0) { + Result.append(Username, Username + Len); + return; + } + } + +// Fallback to user id. +#ifdef LLVM_ON_UNIX + std::string UID = llvm::utostr(getuid()); +#else + // FIXME: Windows seems to have an 'SID' that might work. + std::string UID = "9999"; +#endif + Result.append(UID.begin(), UID.end()); +} + +static void addPGOAndCoverageFlags(Compilation &C, const Driver &D, + const InputInfo &Output, const ArgList &Args, + ArgStringList &CmdArgs) { + + auto *PGOGenerateArg = Args.getLastArg(options::OPT_fprofile_generate, + options::OPT_fprofile_generate_EQ, + options::OPT_fno_profile_generate); + if (PGOGenerateArg && + PGOGenerateArg->getOption().matches(options::OPT_fno_profile_generate)) + PGOGenerateArg = nullptr; + + auto *ProfileGenerateArg = Args.getLastArg( + options::OPT_fprofile_instr_generate, + options::OPT_fprofile_instr_generate_EQ, + options::OPT_fno_profile_instr_generate); + if (ProfileGenerateArg && + ProfileGenerateArg->getOption().matches( + options::OPT_fno_profile_instr_generate)) + ProfileGenerateArg = nullptr; + + if (PGOGenerateArg && ProfileGenerateArg) + D.Diag(diag::err_drv_argument_not_allowed_with) + << PGOGenerateArg->getSpelling() << ProfileGenerateArg->getSpelling(); + + auto *ProfileUseArg = getLastProfileUseArg(Args); + + if (PGOGenerateArg && ProfileUseArg) + D.Diag(diag::err_drv_argument_not_allowed_with) + << ProfileUseArg->getSpelling() << PGOGenerateArg->getSpelling(); + + if (ProfileGenerateArg && ProfileUseArg) + D.Diag(diag::err_drv_argument_not_allowed_with) + << ProfileGenerateArg->getSpelling() << ProfileUseArg->getSpelling(); + + if (ProfileGenerateArg) { + if (ProfileGenerateArg->getOption().matches( + options::OPT_fprofile_instr_generate_EQ)) + CmdArgs.push_back(Args.MakeArgString(Twine("-fprofile-instrument-path=") + + ProfileGenerateArg->getValue())); + // The default is to use Clang Instrumentation. + CmdArgs.push_back("-fprofile-instrument=clang"); + } + + if (PGOGenerateArg) { + CmdArgs.push_back("-fprofile-instrument=llvm"); + if (PGOGenerateArg->getOption().matches( + options::OPT_fprofile_generate_EQ)) { + SmallString<128> Path(PGOGenerateArg->getValue()); + llvm::sys::path::append(Path, "default_%m.profraw"); + CmdArgs.push_back( + Args.MakeArgString(Twine("-fprofile-instrument-path=") + Path)); + } + } + + if (ProfileUseArg) { + if (ProfileUseArg->getOption().matches(options::OPT_fprofile_instr_use_EQ)) + CmdArgs.push_back(Args.MakeArgString( + Twine("-fprofile-instrument-use-path=") + ProfileUseArg->getValue())); + else if ((ProfileUseArg->getOption().matches( + options::OPT_fprofile_use_EQ) || + ProfileUseArg->getOption().matches( + options::OPT_fprofile_instr_use))) { + SmallString<128> Path( + ProfileUseArg->getNumValues() == 0 ? "" : ProfileUseArg->getValue()); + if (Path.empty() || llvm::sys::fs::is_directory(Path)) + llvm::sys::path::append(Path, "default.profdata"); + CmdArgs.push_back( + Args.MakeArgString(Twine("-fprofile-instrument-use-path=") + Path)); + } + } + + if (Args.hasArg(options::OPT_ftest_coverage) || + Args.hasArg(options::OPT_coverage)) + CmdArgs.push_back("-femit-coverage-notes"); + if (Args.hasFlag(options::OPT_fprofile_arcs, options::OPT_fno_profile_arcs, + false) || + Args.hasArg(options::OPT_coverage)) + CmdArgs.push_back("-femit-coverage-data"); + + if (Args.hasFlag(options::OPT_fcoverage_mapping, + options::OPT_fno_coverage_mapping, false)) { + if (!ProfileGenerateArg) + D.Diag(clang::diag::err_drv_argument_only_allowed_with) + << "-fcoverage-mapping" + << "-fprofile-instr-generate"; + + CmdArgs.push_back("-fcoverage-mapping"); + } + + if (C.getArgs().hasArg(options::OPT_c) || + C.getArgs().hasArg(options::OPT_S)) { + if (Output.isFilename()) { + CmdArgs.push_back("-coverage-notes-file"); + SmallString<128> OutputFilename; + if (Arg *FinalOutput = C.getArgs().getLastArg(options::OPT_o)) + OutputFilename = FinalOutput->getValue(); + else + OutputFilename = llvm::sys::path::filename(Output.getBaseInput()); + SmallString<128> CoverageFilename = OutputFilename; + if (llvm::sys::path::is_relative(CoverageFilename)) { + SmallString<128> Pwd; + if (!llvm::sys::fs::current_path(Pwd)) { + llvm::sys::path::append(Pwd, CoverageFilename); + CoverageFilename.swap(Pwd); + } + } + llvm::sys::path::replace_extension(CoverageFilename, "gcno"); + CmdArgs.push_back(Args.MakeArgString(CoverageFilename)); + + // Leave -fprofile-dir= an unused argument unless .gcda emission is + // enabled. To be polite, with '-fprofile-arcs -fno-profile-arcs' consider + // the flag used. There is no -fno-profile-dir, so the user has no + // targeted way to suppress the warning. + if (Args.hasArg(options::OPT_fprofile_arcs) || + Args.hasArg(options::OPT_coverage)) { + CmdArgs.push_back("-coverage-data-file"); + if (Arg *FProfileDir = Args.getLastArg(options::OPT_fprofile_dir)) { + CoverageFilename = FProfileDir->getValue(); + llvm::sys::path::append(CoverageFilename, OutputFilename); + } + llvm::sys::path::replace_extension(CoverageFilename, "gcda"); + CmdArgs.push_back(Args.MakeArgString(CoverageFilename)); + } + } + } +} + +/// \brief Check whether the given input tree contains any compilation actions. +static bool ContainsCompileAction(const Action *A) { + if (isa<CompileJobAction>(A) || isa<BackendJobAction>(A)) + return true; + + for (const auto &AI : A->inputs()) + if (ContainsCompileAction(AI)) + return true; + + return false; +} + +/// \brief Check if -relax-all should be passed to the internal assembler. +/// This is done by default when compiling non-assembler source with -O0. +static bool UseRelaxAll(Compilation &C, const ArgList &Args) { + bool RelaxDefault = true; + + if (Arg *A = Args.getLastArg(options::OPT_O_Group)) + RelaxDefault = A->getOption().matches(options::OPT_O0); + + if (RelaxDefault) { + RelaxDefault = false; + for (const auto &Act : C.getActions()) { + if (ContainsCompileAction(Act)) { + RelaxDefault = true; + break; + } + } + } + + return Args.hasFlag(options::OPT_mrelax_all, options::OPT_mno_relax_all, + RelaxDefault); +} + +// Extract the integer N from a string spelled "-dwarf-N", returning 0 +// on mismatch. The StringRef input (rather than an Arg) allows +// for use by the "-Xassembler" option parser. +static unsigned DwarfVersionNum(StringRef ArgValue) { + return llvm::StringSwitch<unsigned>(ArgValue) + .Case("-gdwarf-2", 2) + .Case("-gdwarf-3", 3) + .Case("-gdwarf-4", 4) + .Case("-gdwarf-5", 5) + .Default(0); +} + +static void RenderDebugEnablingArgs(const ArgList &Args, ArgStringList &CmdArgs, + codegenoptions::DebugInfoKind DebugInfoKind, + unsigned DwarfVersion, + llvm::DebuggerKind DebuggerTuning) { + switch (DebugInfoKind) { + case codegenoptions::DebugLineTablesOnly: + CmdArgs.push_back("-debug-info-kind=line-tables-only"); + break; + case codegenoptions::LimitedDebugInfo: + CmdArgs.push_back("-debug-info-kind=limited"); + break; + case codegenoptions::FullDebugInfo: + CmdArgs.push_back("-debug-info-kind=standalone"); + break; + default: + break; + } + if (DwarfVersion > 0) + CmdArgs.push_back( + Args.MakeArgString("-dwarf-version=" + Twine(DwarfVersion))); + switch (DebuggerTuning) { + case llvm::DebuggerKind::GDB: + CmdArgs.push_back("-debugger-tuning=gdb"); + break; + case llvm::DebuggerKind::LLDB: + CmdArgs.push_back("-debugger-tuning=lldb"); + break; + case llvm::DebuggerKind::SCE: + CmdArgs.push_back("-debugger-tuning=sce"); + break; + default: + break; + } +} + +static void RenderDebugInfoCompressionArgs(const ArgList &Args, + ArgStringList &CmdArgs, + const Driver &D) { + const Arg *A = Args.getLastArg(options::OPT_gz, options::OPT_gz_EQ); + if (!A) + return; + + if (A->getOption().getID() == options::OPT_gz) { + if (llvm::zlib::isAvailable()) + CmdArgs.push_back("-compress-debug-sections"); + else + D.Diag(diag::warn_debug_compression_unavailable); + return; + } + + StringRef Value = A->getValue(); + if (Value == "none") { + CmdArgs.push_back("-compress-debug-sections=none"); + } else if (Value == "zlib" || Value == "zlib-gnu") { + if (llvm::zlib::isAvailable()) { + CmdArgs.push_back( + Args.MakeArgString("-compress-debug-sections=" + Twine(Value))); + } else { + D.Diag(diag::warn_debug_compression_unavailable); + } + } else { + D.Diag(diag::err_drv_unsupported_option_argument) + << A->getOption().getName() << Value; + } +} + +static const char *RelocationModelName(llvm::Reloc::Model Model) { + switch (Model) { + case llvm::Reloc::Static: + return "static"; + case llvm::Reloc::PIC_: + return "pic"; + case llvm::Reloc::DynamicNoPIC: + return "dynamic-no-pic"; + case llvm::Reloc::ROPI: + return "ropi"; + case llvm::Reloc::RWPI: + return "rwpi"; + case llvm::Reloc::ROPI_RWPI: + return "ropi-rwpi"; + } + llvm_unreachable("Unknown Reloc::Model kind"); +} + +void Clang::AddPreprocessingOptions(Compilation &C, const JobAction &JA, + const Driver &D, const ArgList &Args, + ArgStringList &CmdArgs, + const InputInfo &Output, + const InputInfoList &Inputs) const { + Arg *A; + const bool IsIAMCU = getToolChain().getTriple().isOSIAMCU(); + + CheckPreprocessingOptions(D, Args); + + Args.AddLastArg(CmdArgs, options::OPT_C); + Args.AddLastArg(CmdArgs, options::OPT_CC); + + // Handle dependency file generation. + if ((A = Args.getLastArg(options::OPT_M, options::OPT_MM)) || + (A = Args.getLastArg(options::OPT_MD)) || + (A = Args.getLastArg(options::OPT_MMD))) { + // Determine the output location. + const char *DepFile; + if (Arg *MF = Args.getLastArg(options::OPT_MF)) { + DepFile = MF->getValue(); + C.addFailureResultFile(DepFile, &JA); + } else if (Output.getType() == types::TY_Dependencies) { + DepFile = Output.getFilename(); + } else if (A->getOption().matches(options::OPT_M) || + A->getOption().matches(options::OPT_MM)) { + DepFile = "-"; + } else { + DepFile = getDependencyFileName(Args, Inputs); + C.addFailureResultFile(DepFile, &JA); + } + CmdArgs.push_back("-dependency-file"); + CmdArgs.push_back(DepFile); + + // Add a default target if one wasn't specified. + if (!Args.hasArg(options::OPT_MT) && !Args.hasArg(options::OPT_MQ)) { + const char *DepTarget; + + // If user provided -o, that is the dependency target, except + // when we are only generating a dependency file. + Arg *OutputOpt = Args.getLastArg(options::OPT_o); + if (OutputOpt && Output.getType() != types::TY_Dependencies) { + DepTarget = OutputOpt->getValue(); + } else { + // Otherwise derive from the base input. + // + // FIXME: This should use the computed output file location. + SmallString<128> P(Inputs[0].getBaseInput()); + llvm::sys::path::replace_extension(P, "o"); + DepTarget = Args.MakeArgString(llvm::sys::path::filename(P)); + } + + if (!A->getOption().matches(options::OPT_MD) && !A->getOption().matches(options::OPT_MMD)) { + CmdArgs.push_back("-w"); + } + CmdArgs.push_back("-MT"); + SmallString<128> Quoted; + QuoteTarget(DepTarget, Quoted); + CmdArgs.push_back(Args.MakeArgString(Quoted)); + } + + if (A->getOption().matches(options::OPT_M) || + A->getOption().matches(options::OPT_MD)) + CmdArgs.push_back("-sys-header-deps"); + if ((isa<PrecompileJobAction>(JA) && + !Args.hasArg(options::OPT_fno_module_file_deps)) || + Args.hasArg(options::OPT_fmodule_file_deps)) + CmdArgs.push_back("-module-file-deps"); + } + + if (Args.hasArg(options::OPT_MG)) { + if (!A || A->getOption().matches(options::OPT_MD) || + A->getOption().matches(options::OPT_MMD)) + D.Diag(diag::err_drv_mg_requires_m_or_mm); + CmdArgs.push_back("-MG"); + } + + Args.AddLastArg(CmdArgs, options::OPT_MP); + Args.AddLastArg(CmdArgs, options::OPT_MV); + + // Convert all -MQ <target> args to -MT <quoted target> + for (const Arg *A : Args.filtered(options::OPT_MT, options::OPT_MQ)) { + A->claim(); + + if (A->getOption().matches(options::OPT_MQ)) { + CmdArgs.push_back("-MT"); + SmallString<128> Quoted; + QuoteTarget(A->getValue(), Quoted); + CmdArgs.push_back(Args.MakeArgString(Quoted)); + + // -MT flag - no change + } else { + A->render(Args, CmdArgs); + } + } + + // Add offload include arguments specific for CUDA. This must happen before + // we -I or -include anything else, because we must pick up the CUDA headers + // from the particular CUDA installation, rather than from e.g. + // /usr/local/include. + if (JA.isOffloading(Action::OFK_Cuda)) + getToolChain().AddCudaIncludeArgs(Args, CmdArgs); + + // Add -i* options, and automatically translate to + // -include-pch/-include-pth for transparent PCH support. It's + // wonky, but we include looking for .gch so we can support seamless + // replacement into a build system already set up to be generating + // .gch files. + int YcIndex = -1, YuIndex = -1; + { + int AI = -1; + const Arg *YcArg = Args.getLastArg(options::OPT__SLASH_Yc); + const Arg *YuArg = Args.getLastArg(options::OPT__SLASH_Yu); + for (const Arg *A : Args.filtered(options::OPT_clang_i_Group)) { + // Walk the whole i_Group and skip non "-include" flags so that the index + // here matches the index in the next loop below. + ++AI; + if (!A->getOption().matches(options::OPT_include)) + continue; + if (YcArg && strcmp(A->getValue(), YcArg->getValue()) == 0) + YcIndex = AI; + if (YuArg && strcmp(A->getValue(), YuArg->getValue()) == 0) + YuIndex = AI; + } + } + if (isa<PrecompileJobAction>(JA) && YcIndex != -1) { + Driver::InputList Inputs; + D.BuildInputs(getToolChain(), C.getArgs(), Inputs); + assert(Inputs.size() == 1 && "Need one input when building pch"); + CmdArgs.push_back(Args.MakeArgString(Twine("-find-pch-source=") + + Inputs[0].second->getValue())); + } + + bool RenderedImplicitInclude = false; + int AI = -1; + for (const Arg *A : Args.filtered(options::OPT_clang_i_Group)) { + ++AI; + + if (getToolChain().getDriver().IsCLMode() && + A->getOption().matches(options::OPT_include)) { + // In clang-cl mode, /Ycfoo.h means that all code up to a foo.h + // include is compiled into foo.h, and everything after goes into + // the .obj file. /Yufoo.h means that all includes prior to and including + // foo.h are completely skipped and replaced with a use of the pch file + // for foo.h. (Each flag can have at most one value, multiple /Yc flags + // just mean that the last one wins.) If /Yc and /Yu are both present + // and refer to the same file, /Yc wins. + // Note that OPT__SLASH_FI gets mapped to OPT_include. + // FIXME: The code here assumes that /Yc and /Yu refer to the same file. + // cl.exe seems to support both flags with different values, but that + // seems strange (which flag does /Fp now refer to?), so don't implement + // that until someone needs it. + int PchIndex = YcIndex != -1 ? YcIndex : YuIndex; + if (PchIndex != -1) { + if (isa<PrecompileJobAction>(JA)) { + // When building the pch, skip all includes after the pch. + assert(YcIndex != -1 && PchIndex == YcIndex); + if (AI >= YcIndex) + continue; + } else { + // When using the pch, skip all includes prior to the pch. + if (AI < PchIndex) { + A->claim(); + continue; + } + if (AI == PchIndex) { + A->claim(); + CmdArgs.push_back("-include-pch"); + CmdArgs.push_back( + Args.MakeArgString(D.GetClPchPath(C, A->getValue()))); + continue; + } + } + } + } else if (A->getOption().matches(options::OPT_include)) { + // Handling of gcc-style gch precompiled headers. + bool IsFirstImplicitInclude = !RenderedImplicitInclude; + RenderedImplicitInclude = true; + + // Use PCH if the user requested it. + bool UsePCH = D.CCCUsePCH; + + bool FoundPTH = false; + bool FoundPCH = false; + SmallString<128> P(A->getValue()); + // We want the files to have a name like foo.h.pch. Add a dummy extension + // so that replace_extension does the right thing. + P += ".dummy"; + if (UsePCH) { + llvm::sys::path::replace_extension(P, "pch"); + if (llvm::sys::fs::exists(P)) + FoundPCH = true; + } + + if (!FoundPCH) { + llvm::sys::path::replace_extension(P, "pth"); + if (llvm::sys::fs::exists(P)) + FoundPTH = true; + } + + if (!FoundPCH && !FoundPTH) { + llvm::sys::path::replace_extension(P, "gch"); + if (llvm::sys::fs::exists(P)) { + FoundPCH = UsePCH; + FoundPTH = !UsePCH; + } + } + + if (FoundPCH || FoundPTH) { + if (IsFirstImplicitInclude) { + A->claim(); + if (UsePCH) + CmdArgs.push_back("-include-pch"); + else + CmdArgs.push_back("-include-pth"); + CmdArgs.push_back(Args.MakeArgString(P)); + continue; + } else { + // Ignore the PCH if not first on command line and emit warning. + D.Diag(diag::warn_drv_pch_not_first_include) << P + << A->getAsString(Args); + } + } + } else if (A->getOption().matches(options::OPT_isystem_after)) { + // Handling of paths which must come late. These entries are handled by + // the toolchain itself after the resource dir is inserted in the right + // search order. + // Do not claim the argument so that the use of the argument does not + // silently go unnoticed on toolchains which do not honour the option. + continue; + } + + // Not translated, render as usual. + A->claim(); + A->render(Args, CmdArgs); + } + + Args.AddAllArgs(CmdArgs, + {options::OPT_D, options::OPT_U, options::OPT_I_Group, + options::OPT_F, options::OPT_index_header_map}); + + // Add -Wp, and -Xpreprocessor if using the preprocessor. + + // FIXME: There is a very unfortunate problem here, some troubled + // souls abuse -Wp, to pass preprocessor options in gcc syntax. To + // really support that we would have to parse and then translate + // those options. :( + Args.AddAllArgValues(CmdArgs, options::OPT_Wp_COMMA, + options::OPT_Xpreprocessor); + + // -I- is a deprecated GCC feature, reject it. + if (Arg *A = Args.getLastArg(options::OPT_I_)) + D.Diag(diag::err_drv_I_dash_not_supported) << A->getAsString(Args); + + // If we have a --sysroot, and don't have an explicit -isysroot flag, add an + // -isysroot to the CC1 invocation. + StringRef sysroot = C.getSysRoot(); + if (sysroot != "") { + if (!Args.hasArg(options::OPT_isysroot)) { + CmdArgs.push_back("-isysroot"); + CmdArgs.push_back(C.getArgs().MakeArgString(sysroot)); + } + } + + // Parse additional include paths from environment variables. + // FIXME: We should probably sink the logic for handling these from the + // frontend into the driver. It will allow deleting 4 otherwise unused flags. + // CPATH - included following the user specified includes (but prior to + // builtin and standard includes). + addDirectoryList(Args, CmdArgs, "-I", "CPATH"); + // C_INCLUDE_PATH - system includes enabled when compiling C. + addDirectoryList(Args, CmdArgs, "-c-isystem", "C_INCLUDE_PATH"); + // CPLUS_INCLUDE_PATH - system includes enabled when compiling C++. + addDirectoryList(Args, CmdArgs, "-cxx-isystem", "CPLUS_INCLUDE_PATH"); + // OBJC_INCLUDE_PATH - system includes enabled when compiling ObjC. + addDirectoryList(Args, CmdArgs, "-objc-isystem", "OBJC_INCLUDE_PATH"); + // OBJCPLUS_INCLUDE_PATH - system includes enabled when compiling ObjC++. + addDirectoryList(Args, CmdArgs, "-objcxx-isystem", "OBJCPLUS_INCLUDE_PATH"); + + // While adding the include arguments, we also attempt to retrieve the + // arguments of related offloading toolchains or arguments that are specific + // of an offloading programming model. + + // Add C++ include arguments, if needed. + if (types::isCXX(Inputs[0].getType())) + forAllAssociatedToolChains(C, JA, getToolChain(), + [&Args, &CmdArgs](const ToolChain &TC) { + TC.AddClangCXXStdlibIncludeArgs(Args, CmdArgs); + }); + + // Add system include arguments for all targets but IAMCU. + if (!IsIAMCU) + forAllAssociatedToolChains(C, JA, getToolChain(), + [&Args, &CmdArgs](const ToolChain &TC) { + TC.AddClangSystemIncludeArgs(Args, CmdArgs); + }); + else { + // For IAMCU add special include arguments. + getToolChain().AddIAMCUIncludeArgs(Args, CmdArgs); + } +} + +// FIXME: Move to target hook. +static bool isSignedCharDefault(const llvm::Triple &Triple) { + switch (Triple.getArch()) { + default: + return true; + + case llvm::Triple::aarch64: + case llvm::Triple::aarch64_be: + case llvm::Triple::arm: + case llvm::Triple::armeb: + case llvm::Triple::thumb: + case llvm::Triple::thumbeb: + if (Triple.isOSDarwin() || Triple.isOSWindows()) + return true; + return false; + + case llvm::Triple::ppc: + case llvm::Triple::ppc64: + if (Triple.isOSDarwin()) + return true; + return false; + + case llvm::Triple::hexagon: + case llvm::Triple::ppc64le: + case llvm::Triple::systemz: + case llvm::Triple::xcore: + return false; + } +} + +static bool isNoCommonDefault(const llvm::Triple &Triple) { + switch (Triple.getArch()) { + default: + return false; + + case llvm::Triple::xcore: + case llvm::Triple::wasm32: + case llvm::Triple::wasm64: + return true; + } +} + +void Clang::AddARMTargetArgs(const llvm::Triple &Triple, const ArgList &Args, + ArgStringList &CmdArgs, bool KernelOrKext) const { + // Select the ABI to use. + // FIXME: Support -meabi. + // FIXME: Parts of this are duplicated in the backend, unify this somehow. + const char *ABIName = nullptr; + if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) + ABIName = A->getValue(); + else { + std::string CPU = getCPUName(Args, Triple, /*FromAs*/ false); + ABIName = llvm::ARM::computeDefaultTargetABI(Triple, CPU).data(); + } + + CmdArgs.push_back("-target-abi"); + CmdArgs.push_back(ABIName); + + // Determine floating point ABI from the options & target defaults. + arm::FloatABI ABI = arm::getARMFloatABI(getToolChain(), Args); + if (ABI == arm::FloatABI::Soft) { + // Floating point operations and argument passing are soft. + // FIXME: This changes CPP defines, we need -target-soft-float. + CmdArgs.push_back("-msoft-float"); + CmdArgs.push_back("-mfloat-abi"); + CmdArgs.push_back("soft"); + } else if (ABI == arm::FloatABI::SoftFP) { + // Floating point operations are hard, but argument passing is soft. + CmdArgs.push_back("-mfloat-abi"); + CmdArgs.push_back("soft"); + } else { + // Floating point operations and argument passing are hard. + assert(ABI == arm::FloatABI::Hard && "Invalid float abi!"); + CmdArgs.push_back("-mfloat-abi"); + CmdArgs.push_back("hard"); + } + + // Forward the -mglobal-merge option for explicit control over the pass. + if (Arg *A = Args.getLastArg(options::OPT_mglobal_merge, + options::OPT_mno_global_merge)) { + CmdArgs.push_back("-backend-option"); + if (A->getOption().matches(options::OPT_mno_global_merge)) + CmdArgs.push_back("-arm-global-merge=false"); + else + CmdArgs.push_back("-arm-global-merge=true"); + } + + if (!Args.hasFlag(options::OPT_mimplicit_float, + options::OPT_mno_implicit_float, true)) + CmdArgs.push_back("-no-implicit-float"); +} + +void Clang::AddAArch64TargetArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + const llvm::Triple &Triple = getToolChain().getEffectiveTriple(); + + if (!Args.hasFlag(options::OPT_mred_zone, options::OPT_mno_red_zone, true) || + Args.hasArg(options::OPT_mkernel) || + Args.hasArg(options::OPT_fapple_kext)) + CmdArgs.push_back("-disable-red-zone"); + + if (!Args.hasFlag(options::OPT_mimplicit_float, + options::OPT_mno_implicit_float, true)) + CmdArgs.push_back("-no-implicit-float"); + + const char *ABIName = nullptr; + if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) + ABIName = A->getValue(); + else if (Triple.isOSDarwin()) + ABIName = "darwinpcs"; + else + ABIName = "aapcs"; + + CmdArgs.push_back("-target-abi"); + CmdArgs.push_back(ABIName); + + if (Arg *A = Args.getLastArg(options::OPT_mfix_cortex_a53_835769, + options::OPT_mno_fix_cortex_a53_835769)) { + CmdArgs.push_back("-backend-option"); + if (A->getOption().matches(options::OPT_mfix_cortex_a53_835769)) + CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=1"); + else + CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=0"); + } else if (Triple.isAndroid()) { + // Enabled A53 errata (835769) workaround by default on android + CmdArgs.push_back("-backend-option"); + CmdArgs.push_back("-aarch64-fix-cortex-a53-835769=1"); + } + + // Forward the -mglobal-merge option for explicit control over the pass. + if (Arg *A = Args.getLastArg(options::OPT_mglobal_merge, + options::OPT_mno_global_merge)) { + CmdArgs.push_back("-backend-option"); + if (A->getOption().matches(options::OPT_mno_global_merge)) + CmdArgs.push_back("-aarch64-enable-global-merge=false"); + else + CmdArgs.push_back("-aarch64-enable-global-merge=true"); + } +} + +void Clang::AddMIPSTargetArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + const Driver &D = getToolChain().getDriver(); + StringRef CPUName; + StringRef ABIName; + const llvm::Triple &Triple = getToolChain().getTriple(); + mips::getMipsCPUAndABI(Args, Triple, CPUName, ABIName); + + CmdArgs.push_back("-target-abi"); + CmdArgs.push_back(ABIName.data()); + + mips::FloatABI ABI = mips::getMipsFloatABI(D, Args); + if (ABI == mips::FloatABI::Soft) { + // Floating point operations and argument passing are soft. + CmdArgs.push_back("-msoft-float"); + CmdArgs.push_back("-mfloat-abi"); + CmdArgs.push_back("soft"); + } else { + // Floating point operations and argument passing are hard. + assert(ABI == mips::FloatABI::Hard && "Invalid float abi!"); + CmdArgs.push_back("-mfloat-abi"); + CmdArgs.push_back("hard"); + } + + if (Arg *A = Args.getLastArg(options::OPT_mxgot, options::OPT_mno_xgot)) { + if (A->getOption().matches(options::OPT_mxgot)) { + CmdArgs.push_back("-mllvm"); + CmdArgs.push_back("-mxgot"); + } + } + + if (Arg *A = Args.getLastArg(options::OPT_mldc1_sdc1, + options::OPT_mno_ldc1_sdc1)) { + if (A->getOption().matches(options::OPT_mno_ldc1_sdc1)) { + CmdArgs.push_back("-mllvm"); + CmdArgs.push_back("-mno-ldc1-sdc1"); + } + } + + if (Arg *A = Args.getLastArg(options::OPT_mcheck_zero_division, + options::OPT_mno_check_zero_division)) { + if (A->getOption().matches(options::OPT_mno_check_zero_division)) { + CmdArgs.push_back("-mllvm"); + CmdArgs.push_back("-mno-check-zero-division"); + } + } + + if (Arg *A = Args.getLastArg(options::OPT_G)) { + StringRef v = A->getValue(); + CmdArgs.push_back("-mllvm"); + CmdArgs.push_back(Args.MakeArgString("-mips-ssection-threshold=" + v)); + A->claim(); + } + + if (Arg *A = Args.getLastArg(options::OPT_mcompact_branches_EQ)) { + StringRef Val = StringRef(A->getValue()); + if (mips::hasCompactBranches(CPUName)) { + if (Val == "never" || Val == "always" || Val == "optimal") { + CmdArgs.push_back("-mllvm"); + CmdArgs.push_back(Args.MakeArgString("-mips-compact-branches=" + Val)); + } else + D.Diag(diag::err_drv_unsupported_option_argument) + << A->getOption().getName() << Val; + } else + D.Diag(diag::warn_target_unsupported_compact_branches) << CPUName; + } +} + +void Clang::AddPPCTargetArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + // Select the ABI to use. + const char *ABIName = nullptr; + if (getToolChain().getTriple().isOSLinux()) + switch (getToolChain().getArch()) { + case llvm::Triple::ppc64: { + // When targeting a processor that supports QPX, or if QPX is + // specifically enabled, default to using the ABI that supports QPX (so + // long as it is not specifically disabled). + bool HasQPX = false; + if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) + HasQPX = A->getValue() == StringRef("a2q"); + HasQPX = Args.hasFlag(options::OPT_mqpx, options::OPT_mno_qpx, HasQPX); + if (HasQPX) { + ABIName = "elfv1-qpx"; + break; + } + + ABIName = "elfv1"; + break; + } + case llvm::Triple::ppc64le: + ABIName = "elfv2"; + break; + default: + break; + } + + if (Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) + // The ppc64 linux abis are all "altivec" abis by default. Accept and ignore + // the option if given as we don't have backend support for any targets + // that don't use the altivec abi. + if (StringRef(A->getValue()) != "altivec") + ABIName = A->getValue(); + + ppc::FloatABI FloatABI = + ppc::getPPCFloatABI(getToolChain().getDriver(), Args); + + if (FloatABI == ppc::FloatABI::Soft) { + // Floating point operations and argument passing are soft. + CmdArgs.push_back("-msoft-float"); + CmdArgs.push_back("-mfloat-abi"); + CmdArgs.push_back("soft"); + } else { + // Floating point operations and argument passing are hard. + assert(FloatABI == ppc::FloatABI::Hard && "Invalid float abi!"); + CmdArgs.push_back("-mfloat-abi"); + CmdArgs.push_back("hard"); + } + + if (ABIName) { + CmdArgs.push_back("-target-abi"); + CmdArgs.push_back(ABIName); + } +} + +void Clang::AddSparcTargetArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + sparc::FloatABI FloatABI = + sparc::getSparcFloatABI(getToolChain().getDriver(), Args); + + if (FloatABI == sparc::FloatABI::Soft) { + // Floating point operations and argument passing are soft. + CmdArgs.push_back("-msoft-float"); + CmdArgs.push_back("-mfloat-abi"); + CmdArgs.push_back("soft"); + } else { + // Floating point operations and argument passing are hard. + assert(FloatABI == sparc::FloatABI::Hard && "Invalid float abi!"); + CmdArgs.push_back("-mfloat-abi"); + CmdArgs.push_back("hard"); + } +} + +void Clang::AddSystemZTargetArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + if (Args.hasFlag(options::OPT_mbackchain, options::OPT_mno_backchain, false)) + CmdArgs.push_back("-mbackchain"); +} + +void Clang::AddX86TargetArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + if (!Args.hasFlag(options::OPT_mred_zone, options::OPT_mno_red_zone, true) || + Args.hasArg(options::OPT_mkernel) || + Args.hasArg(options::OPT_fapple_kext)) + CmdArgs.push_back("-disable-red-zone"); + + // Default to avoid implicit floating-point for kernel/kext code, but allow + // that to be overridden with -mno-soft-float. + bool NoImplicitFloat = (Args.hasArg(options::OPT_mkernel) || + Args.hasArg(options::OPT_fapple_kext)); + if (Arg *A = Args.getLastArg( + options::OPT_msoft_float, options::OPT_mno_soft_float, + options::OPT_mimplicit_float, options::OPT_mno_implicit_float)) { + const Option &O = A->getOption(); + NoImplicitFloat = (O.matches(options::OPT_mno_implicit_float) || + O.matches(options::OPT_msoft_float)); + } + if (NoImplicitFloat) + CmdArgs.push_back("-no-implicit-float"); + + if (Arg *A = Args.getLastArg(options::OPT_masm_EQ)) { + StringRef Value = A->getValue(); + if (Value == "intel" || Value == "att") { + CmdArgs.push_back("-mllvm"); + CmdArgs.push_back(Args.MakeArgString("-x86-asm-syntax=" + Value)); + } else { + getToolChain().getDriver().Diag(diag::err_drv_unsupported_option_argument) + << A->getOption().getName() << Value; + } + } + + // Set flags to support MCU ABI. + if (Args.hasFlag(options::OPT_miamcu, options::OPT_mno_iamcu, false)) { + CmdArgs.push_back("-mfloat-abi"); + CmdArgs.push_back("soft"); + CmdArgs.push_back("-mstack-alignment=4"); + } +} + +void Clang::AddHexagonTargetArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + CmdArgs.push_back("-mqdsp6-compat"); + CmdArgs.push_back("-Wreturn-type"); + + if (auto G = toolchains::HexagonToolChain::getSmallDataThreshold(Args)) { + std::string N = llvm::utostr(G.getValue()); + std::string Opt = std::string("-hexagon-small-data-threshold=") + N; + CmdArgs.push_back("-mllvm"); + CmdArgs.push_back(Args.MakeArgString(Opt)); + } + + if (!Args.hasArg(options::OPT_fno_short_enums)) + CmdArgs.push_back("-fshort-enums"); + if (Args.getLastArg(options::OPT_mieee_rnd_near)) { + CmdArgs.push_back("-mllvm"); + CmdArgs.push_back("-enable-hexagon-ieee-rnd-near"); + } + CmdArgs.push_back("-mllvm"); + CmdArgs.push_back("-machine-sink-split=0"); +} + +void Clang::AddLanaiTargetArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) { + StringRef CPUName = A->getValue(); + + CmdArgs.push_back("-target-cpu"); + CmdArgs.push_back(Args.MakeArgString(CPUName)); + } + if (Arg *A = Args.getLastArg(options::OPT_mregparm_EQ)) { + StringRef Value = A->getValue(); + // Only support mregparm=4 to support old usage. Report error for all other + // cases. + int Mregparm; + if (Value.getAsInteger(10, Mregparm)) { + if (Mregparm != 4) { + getToolChain().getDriver().Diag( + diag::err_drv_unsupported_option_argument) + << A->getOption().getName() << Value; + } + } + } +} + +void Clang::AddWebAssemblyTargetArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + // Default to "hidden" visibility. + if (!Args.hasArg(options::OPT_fvisibility_EQ, + options::OPT_fvisibility_ms_compat)) { + CmdArgs.push_back("-fvisibility"); + CmdArgs.push_back("hidden"); + } +} + +void Clang::DumpCompilationDatabase(Compilation &C, StringRef Filename, + StringRef Target, const InputInfo &Output, + const InputInfo &Input, const ArgList &Args) const { + // If this is a dry run, do not create the compilation database file. + if (C.getArgs().hasArg(options::OPT__HASH_HASH_HASH)) + return; + + using llvm::yaml::escape; + const Driver &D = getToolChain().getDriver(); + + if (!CompilationDatabase) { + std::error_code EC; + auto File = llvm::make_unique<llvm::raw_fd_ostream>(Filename, EC, llvm::sys::fs::F_Text); + if (EC) { + D.Diag(clang::diag::err_drv_compilationdatabase) << Filename + << EC.message(); + return; + } + CompilationDatabase = std::move(File); + } + auto &CDB = *CompilationDatabase; + SmallString<128> Buf; + if (llvm::sys::fs::current_path(Buf)) + Buf = "."; + CDB << "{ \"directory\": \"" << escape(Buf) << "\""; + CDB << ", \"file\": \"" << escape(Input.getFilename()) << "\""; + CDB << ", \"output\": \"" << escape(Output.getFilename()) << "\""; + CDB << ", \"arguments\": [\"" << escape(D.ClangExecutable) << "\""; + Buf = "-x"; + Buf += types::getTypeName(Input.getType()); + CDB << ", \"" << escape(Buf) << "\""; + if (!D.SysRoot.empty() && !Args.hasArg(options::OPT__sysroot_EQ)) { + Buf = "--sysroot="; + Buf += D.SysRoot; + CDB << ", \"" << escape(Buf) << "\""; + } + CDB << ", \"" << escape(Input.getFilename()) << "\""; + for (auto &A: Args) { + auto &O = A->getOption(); + // Skip language selection, which is positional. + if (O.getID() == options::OPT_x) + continue; + // Skip writing dependency output and the compilation database itself. + if (O.getGroup().isValid() && O.getGroup().getID() == options::OPT_M_Group) + continue; + // Skip inputs. + if (O.getKind() == Option::InputClass) + continue; + // All other arguments are quoted and appended. + ArgStringList ASL; + A->render(Args, ASL); + for (auto &it: ASL) + CDB << ", \"" << escape(it) << "\""; + } + Buf = "--target="; + Buf += Target; + CDB << ", \"" << escape(Buf) << "\"]},\n"; +} + +static void CollectArgsForIntegratedAssembler(Compilation &C, + const ArgList &Args, + ArgStringList &CmdArgs, + const Driver &D) { + if (UseRelaxAll(C, Args)) + CmdArgs.push_back("-mrelax-all"); + + // Only default to -mincremental-linker-compatible if we think we are + // targeting the MSVC linker. + bool DefaultIncrementalLinkerCompatible = + C.getDefaultToolChain().getTriple().isWindowsMSVCEnvironment(); + if (Args.hasFlag(options::OPT_mincremental_linker_compatible, + options::OPT_mno_incremental_linker_compatible, + DefaultIncrementalLinkerCompatible)) + CmdArgs.push_back("-mincremental-linker-compatible"); + + switch (C.getDefaultToolChain().getArch()) { + case llvm::Triple::arm: + case llvm::Triple::armeb: + case llvm::Triple::thumb: + case llvm::Triple::thumbeb: + if (Arg *A = Args.getLastArg(options::OPT_mimplicit_it_EQ)) { + StringRef Value = A->getValue(); + if (Value == "always" || Value == "never" || Value == "arm" || + Value == "thumb") { + CmdArgs.push_back("-mllvm"); + CmdArgs.push_back(Args.MakeArgString("-arm-implicit-it=" + Value)); + } else { + D.Diag(diag::err_drv_unsupported_option_argument) + << A->getOption().getName() << Value; + } + } + break; + default: + break; + } + + // When passing -I arguments to the assembler we sometimes need to + // unconditionally take the next argument. For example, when parsing + // '-Wa,-I -Wa,foo' we need to accept the -Wa,foo arg after seeing the + // -Wa,-I arg and when parsing '-Wa,-I,foo' we need to accept the 'foo' + // arg after parsing the '-I' arg. + bool TakeNextArg = false; + + bool UseRelaxRelocations = ENABLE_X86_RELAX_RELOCATIONS; + const char *MipsTargetFeature = nullptr; + for (const Arg *A : + Args.filtered(options::OPT_Wa_COMMA, options::OPT_Xassembler)) { + A->claim(); + + for (StringRef Value : A->getValues()) { + if (TakeNextArg) { + CmdArgs.push_back(Value.data()); + TakeNextArg = false; + continue; + } + + if (C.getDefaultToolChain().getTriple().isOSBinFormatCOFF() && + Value == "-mbig-obj") + continue; // LLVM handles bigobj automatically + + switch (C.getDefaultToolChain().getArch()) { + default: + break; + case llvm::Triple::mips: + case llvm::Triple::mipsel: + case llvm::Triple::mips64: + case llvm::Triple::mips64el: + if (Value == "--trap") { + CmdArgs.push_back("-target-feature"); + CmdArgs.push_back("+use-tcc-in-div"); + continue; + } + if (Value == "--break") { + CmdArgs.push_back("-target-feature"); + CmdArgs.push_back("-use-tcc-in-div"); + continue; + } + if (Value.startswith("-msoft-float")) { + CmdArgs.push_back("-target-feature"); + CmdArgs.push_back("+soft-float"); + continue; + } + if (Value.startswith("-mhard-float")) { + CmdArgs.push_back("-target-feature"); + CmdArgs.push_back("-soft-float"); + continue; + } + + MipsTargetFeature = llvm::StringSwitch<const char *>(Value) + .Case("-mips1", "+mips1") + .Case("-mips2", "+mips2") + .Case("-mips3", "+mips3") + .Case("-mips4", "+mips4") + .Case("-mips5", "+mips5") + .Case("-mips32", "+mips32") + .Case("-mips32r2", "+mips32r2") + .Case("-mips32r3", "+mips32r3") + .Case("-mips32r5", "+mips32r5") + .Case("-mips32r6", "+mips32r6") + .Case("-mips64", "+mips64") + .Case("-mips64r2", "+mips64r2") + .Case("-mips64r3", "+mips64r3") + .Case("-mips64r5", "+mips64r5") + .Case("-mips64r6", "+mips64r6") + .Default(nullptr); + if (MipsTargetFeature) + continue; + } + + if (Value == "-force_cpusubtype_ALL") { + // Do nothing, this is the default and we don't support anything else. + } else if (Value == "-L") { + CmdArgs.push_back("-msave-temp-labels"); + } else if (Value == "--fatal-warnings") { + CmdArgs.push_back("-massembler-fatal-warnings"); + } else if (Value == "--noexecstack") { + CmdArgs.push_back("-mnoexecstack"); + } else if (Value.startswith("-compress-debug-sections") || + Value.startswith("--compress-debug-sections") || + Value == "-nocompress-debug-sections" || + Value == "--nocompress-debug-sections") { + CmdArgs.push_back(Value.data()); + } else if (Value == "-mrelax-relocations=yes" || + Value == "--mrelax-relocations=yes") { + UseRelaxRelocations = true; + } else if (Value == "-mrelax-relocations=no" || + Value == "--mrelax-relocations=no") { + UseRelaxRelocations = false; + } else if (Value.startswith("-I")) { + CmdArgs.push_back(Value.data()); + // We need to consume the next argument if the current arg is a plain + // -I. The next arg will be the include directory. + if (Value == "-I") + TakeNextArg = true; + } else if (Value.startswith("-gdwarf-")) { + // "-gdwarf-N" options are not cc1as options. + unsigned DwarfVersion = DwarfVersionNum(Value); + if (DwarfVersion == 0) { // Send it onward, and let cc1as complain. + CmdArgs.push_back(Value.data()); + } else { + RenderDebugEnablingArgs(Args, CmdArgs, + codegenoptions::LimitedDebugInfo, + DwarfVersion, llvm::DebuggerKind::Default); + } + } else if (Value.startswith("-mcpu") || Value.startswith("-mfpu") || + Value.startswith("-mhwdiv") || Value.startswith("-march")) { + // Do nothing, we'll validate it later. + } else if (Value == "-defsym") { + if (A->getNumValues() != 2) { + D.Diag(diag::err_drv_defsym_invalid_format) << Value; + break; + } + const char *S = A->getValue(1); + auto Pair = StringRef(S).split('='); + auto Sym = Pair.first; + auto SVal = Pair.second; + + if (Sym.empty() || SVal.empty()) { + D.Diag(diag::err_drv_defsym_invalid_format) << S; + break; + } + int64_t IVal; + if (SVal.getAsInteger(0, IVal)) { + D.Diag(diag::err_drv_defsym_invalid_symval) << SVal; + break; + } + CmdArgs.push_back(Value.data()); + TakeNextArg = true; + } else { + D.Diag(diag::err_drv_unsupported_option_argument) + << A->getOption().getName() << Value; + } + } + } + if (UseRelaxRelocations) + CmdArgs.push_back("--mrelax-relocations"); + if (MipsTargetFeature != nullptr) { + CmdArgs.push_back("-target-feature"); + CmdArgs.push_back(MipsTargetFeature); + } +} + +void Clang::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const ArgList &Args, const char *LinkingOutput) const { + const llvm::Triple &Triple = getToolChain().getEffectiveTriple(); + const std::string &TripleStr = Triple.getTriple(); + + bool KernelOrKext = + Args.hasArg(options::OPT_mkernel, options::OPT_fapple_kext); + const Driver &D = getToolChain().getDriver(); + ArgStringList CmdArgs; + + // Check number of inputs for sanity. We need at least one input. + assert(Inputs.size() >= 1 && "Must have at least one input."); + const InputInfo &Input = Inputs[0]; + // CUDA compilation may have multiple inputs (source file + results of + // device-side compilations). OpenMP device jobs also take the host IR as a + // second input. All other jobs are expected to have exactly one + // input. + bool IsCuda = JA.isOffloading(Action::OFK_Cuda); + bool IsOpenMPDevice = JA.isDeviceOffloading(Action::OFK_OpenMP); + assert((IsCuda || (IsOpenMPDevice && Inputs.size() == 2) || + Inputs.size() == 1) && + "Unable to handle multiple inputs."); + + bool IsWindowsGNU = getToolChain().getTriple().isWindowsGNUEnvironment(); + bool IsWindowsCygnus = + getToolChain().getTriple().isWindowsCygwinEnvironment(); + bool IsWindowsMSVC = getToolChain().getTriple().isWindowsMSVCEnvironment(); + bool IsPS4CPU = getToolChain().getTriple().isPS4CPU(); + bool IsIAMCU = getToolChain().getTriple().isOSIAMCU(); + + // Adjust IsWindowsXYZ for CUDA compilations. Even when compiling in device + // mode (i.e., getToolchain().getTriple() is NVPTX, not Windows), we need to + // pass Windows-specific flags to cc1. + if (IsCuda) { + const llvm::Triple *AuxTriple = getToolChain().getAuxTriple(); + IsWindowsMSVC |= AuxTriple && AuxTriple->isWindowsMSVCEnvironment(); + IsWindowsGNU |= AuxTriple && AuxTriple->isWindowsGNUEnvironment(); + IsWindowsCygnus |= AuxTriple && AuxTriple->isWindowsCygwinEnvironment(); + } + + // C++ is not supported for IAMCU. + if (IsIAMCU && types::isCXX(Input.getType())) + D.Diag(diag::err_drv_clang_unsupported) << "C++ for IAMCU"; + + // Invoke ourselves in -cc1 mode. + // + // FIXME: Implement custom jobs for internal actions. + CmdArgs.push_back("-cc1"); + + // Add the "effective" target triple. + CmdArgs.push_back("-triple"); + CmdArgs.push_back(Args.MakeArgString(TripleStr)); + + if (const Arg *MJ = Args.getLastArg(options::OPT_MJ)) { + DumpCompilationDatabase(C, MJ->getValue(), TripleStr, Output, Input, Args); + Args.ClaimAllArgs(options::OPT_MJ); + } + + if (IsCuda) { + // We have to pass the triple of the host if compiling for a CUDA device and + // vice-versa. + std::string NormalizedTriple; + if (JA.isDeviceOffloading(Action::OFK_Cuda)) + NormalizedTriple = C.getSingleOffloadToolChain<Action::OFK_Host>() + ->getTriple() + .normalize(); + else + NormalizedTriple = C.getSingleOffloadToolChain<Action::OFK_Cuda>() + ->getTriple() + .normalize(); + + CmdArgs.push_back("-aux-triple"); + CmdArgs.push_back(Args.MakeArgString(NormalizedTriple)); + } + + if (IsOpenMPDevice) { + // We have to pass the triple of the host if compiling for an OpenMP device. + std::string NormalizedTriple = + C.getSingleOffloadToolChain<Action::OFK_Host>() + ->getTriple() + .normalize(); + CmdArgs.push_back("-aux-triple"); + CmdArgs.push_back(Args.MakeArgString(NormalizedTriple)); + } + + if (Triple.isOSWindows() && (Triple.getArch() == llvm::Triple::arm || + Triple.getArch() == llvm::Triple::thumb)) { + unsigned Offset = Triple.getArch() == llvm::Triple::arm ? 4 : 6; + unsigned Version; + Triple.getArchName().substr(Offset).getAsInteger(10, Version); + if (Version < 7) + D.Diag(diag::err_target_unsupported_arch) << Triple.getArchName() + << TripleStr; + } + + // Push all default warning arguments that are specific to + // the given target. These come before user provided warning options + // are provided. + getToolChain().addClangWarningOptions(CmdArgs); + + // Select the appropriate action. + RewriteKind rewriteKind = RK_None; + + if (isa<AnalyzeJobAction>(JA)) { + assert(JA.getType() == types::TY_Plist && "Invalid output type."); + CmdArgs.push_back("-analyze"); + } else if (isa<MigrateJobAction>(JA)) { + CmdArgs.push_back("-migrate"); + } else if (isa<PreprocessJobAction>(JA)) { + if (Output.getType() == types::TY_Dependencies) + CmdArgs.push_back("-Eonly"); + else { + CmdArgs.push_back("-E"); + if (Args.hasArg(options::OPT_rewrite_objc) && + !Args.hasArg(options::OPT_g_Group)) + CmdArgs.push_back("-P"); + } + } else if (isa<AssembleJobAction>(JA)) { + CmdArgs.push_back("-emit-obj"); + + CollectArgsForIntegratedAssembler(C, Args, CmdArgs, D); + + // Also ignore explicit -force_cpusubtype_ALL option. + (void)Args.hasArg(options::OPT_force__cpusubtype__ALL); + } else if (isa<PrecompileJobAction>(JA)) { + // Use PCH if the user requested it. + bool UsePCH = D.CCCUsePCH; + + if (JA.getType() == types::TY_Nothing) + CmdArgs.push_back("-fsyntax-only"); + else if (JA.getType() == types::TY_ModuleFile) + CmdArgs.push_back("-emit-module-interface"); + else if (UsePCH) + CmdArgs.push_back("-emit-pch"); + else + CmdArgs.push_back("-emit-pth"); + } else if (isa<VerifyPCHJobAction>(JA)) { + CmdArgs.push_back("-verify-pch"); + } else { + assert((isa<CompileJobAction>(JA) || isa<BackendJobAction>(JA)) && + "Invalid action for clang tool."); + if (JA.getType() == types::TY_Nothing) { + CmdArgs.push_back("-fsyntax-only"); + } else if (JA.getType() == types::TY_LLVM_IR || + JA.getType() == types::TY_LTO_IR) { + CmdArgs.push_back("-emit-llvm"); + } else if (JA.getType() == types::TY_LLVM_BC || + JA.getType() == types::TY_LTO_BC) { + CmdArgs.push_back("-emit-llvm-bc"); + } else if (JA.getType() == types::TY_PP_Asm) { + CmdArgs.push_back("-S"); + } else if (JA.getType() == types::TY_AST) { + CmdArgs.push_back("-emit-pch"); + } else if (JA.getType() == types::TY_ModuleFile) { + CmdArgs.push_back("-module-file-info"); + } else if (JA.getType() == types::TY_RewrittenObjC) { + CmdArgs.push_back("-rewrite-objc"); + rewriteKind = RK_NonFragile; + } else if (JA.getType() == types::TY_RewrittenLegacyObjC) { + CmdArgs.push_back("-rewrite-objc"); + rewriteKind = RK_Fragile; + } else { + assert(JA.getType() == types::TY_PP_Asm && "Unexpected output type!"); + } + + // Preserve use-list order by default when emitting bitcode, so that + // loading the bitcode up in 'opt' or 'llc' and running passes gives the + // same result as running passes here. For LTO, we don't need to preserve + // the use-list order, since serialization to bitcode is part of the flow. + if (JA.getType() == types::TY_LLVM_BC) + CmdArgs.push_back("-emit-llvm-uselists"); + + if (D.isUsingLTO()) { + Args.AddLastArg(CmdArgs, options::OPT_flto, options::OPT_flto_EQ); + + // The Darwin and PS4 linkers currently use the legacy LTO API, which + // does not support LTO unit features (CFI, whole program vtable opt) + // under ThinLTO. + if (!(getToolChain().getTriple().isOSDarwin() || + getToolChain().getTriple().isPS4()) || + D.getLTOMode() == LTOK_Full) + CmdArgs.push_back("-flto-unit"); + } + } + + if (const Arg *A = Args.getLastArg(options::OPT_fthinlto_index_EQ)) { + if (!types::isLLVMIR(Input.getType())) + D.Diag(diag::err_drv_argument_only_allowed_with) << A->getAsString(Args) + << "-x ir"; + Args.AddLastArg(CmdArgs, options::OPT_fthinlto_index_EQ); + } + + // Embed-bitcode option. + if (C.getDriver().embedBitcodeInObject() && !C.getDriver().isUsingLTO() && + (isa<BackendJobAction>(JA) || isa<AssembleJobAction>(JA))) { + // Add flags implied by -fembed-bitcode. + Args.AddLastArg(CmdArgs, options::OPT_fembed_bitcode_EQ); + // Disable all llvm IR level optimizations. + CmdArgs.push_back("-disable-llvm-passes"); + } + if (C.getDriver().embedBitcodeMarkerOnly() && !C.getDriver().isUsingLTO()) + CmdArgs.push_back("-fembed-bitcode=marker"); + + // We normally speed up the clang process a bit by skipping destructors at + // exit, but when we're generating diagnostics we can rely on some of the + // cleanup. + if (!C.isForDiagnostics()) + CmdArgs.push_back("-disable-free"); + +// Disable the verification pass in -asserts builds. +#ifdef NDEBUG + CmdArgs.push_back("-disable-llvm-verifier"); + // Discard LLVM value names in -asserts builds. + CmdArgs.push_back("-discard-value-names"); +#endif + + // Set the main file name, so that debug info works even with + // -save-temps. + CmdArgs.push_back("-main-file-name"); + CmdArgs.push_back(getBaseInputName(Args, Input)); + + // Some flags which affect the language (via preprocessor + // defines). + if (Args.hasArg(options::OPT_static)) + CmdArgs.push_back("-static-define"); + + if (isa<AnalyzeJobAction>(JA)) { + // Enable region store model by default. + CmdArgs.push_back("-analyzer-store=region"); + + // Treat blocks as analysis entry points. + CmdArgs.push_back("-analyzer-opt-analyze-nested-blocks"); + + CmdArgs.push_back("-analyzer-eagerly-assume"); + + // Add default argument set. + if (!Args.hasArg(options::OPT__analyzer_no_default_checks)) { + CmdArgs.push_back("-analyzer-checker=core"); + CmdArgs.push_back("-analyzer-checker=apiModeling"); + + if (!IsWindowsMSVC) { + CmdArgs.push_back("-analyzer-checker=unix"); + } else { + // Enable "unix" checkers that also work on Windows. + CmdArgs.push_back("-analyzer-checker=unix.API"); + CmdArgs.push_back("-analyzer-checker=unix.Malloc"); + CmdArgs.push_back("-analyzer-checker=unix.MallocSizeof"); + CmdArgs.push_back("-analyzer-checker=unix.MismatchedDeallocator"); + CmdArgs.push_back("-analyzer-checker=unix.cstring.BadSizeArg"); + CmdArgs.push_back("-analyzer-checker=unix.cstring.NullArg"); + } + + // Disable some unix checkers for PS4. + if (IsPS4CPU) { + CmdArgs.push_back("-analyzer-disable-checker=unix.API"); + CmdArgs.push_back("-analyzer-disable-checker=unix.Vfork"); + } + + if (getToolChain().getTriple().getVendor() == llvm::Triple::Apple) + CmdArgs.push_back("-analyzer-checker=osx"); + + CmdArgs.push_back("-analyzer-checker=deadcode"); + + if (types::isCXX(Input.getType())) + CmdArgs.push_back("-analyzer-checker=cplusplus"); + + if (!IsPS4CPU) { + CmdArgs.push_back( + "-analyzer-checker=security.insecureAPI.UncheckedReturn"); + CmdArgs.push_back("-analyzer-checker=security.insecureAPI.getpw"); + CmdArgs.push_back("-analyzer-checker=security.insecureAPI.gets"); + CmdArgs.push_back("-analyzer-checker=security.insecureAPI.mktemp"); + CmdArgs.push_back("-analyzer-checker=security.insecureAPI.mkstemp"); + CmdArgs.push_back("-analyzer-checker=security.insecureAPI.vfork"); + } + + // Default nullability checks. + CmdArgs.push_back("-analyzer-checker=nullability.NullPassedToNonnull"); + CmdArgs.push_back( + "-analyzer-checker=nullability.NullReturnedFromNonnull"); + } + + // Set the output format. The default is plist, for (lame) historical + // reasons. + CmdArgs.push_back("-analyzer-output"); + if (Arg *A = Args.getLastArg(options::OPT__analyzer_output)) + CmdArgs.push_back(A->getValue()); + else + CmdArgs.push_back("plist"); + + // Disable the presentation of standard compiler warnings when + // using --analyze. We only want to show static analyzer diagnostics + // or frontend errors. + CmdArgs.push_back("-w"); + + // Add -Xanalyzer arguments when running as analyzer. + Args.AddAllArgValues(CmdArgs, options::OPT_Xanalyzer); + } + + CheckCodeGenerationOptions(D, Args); + + llvm::Reloc::Model RelocationModel; + unsigned PICLevel; + bool IsPIE; + std::tie(RelocationModel, PICLevel, IsPIE) = + ParsePICArgs(getToolChain(), Args); + + const char *RMName = RelocationModelName(RelocationModel); + + if ((RelocationModel == llvm::Reloc::ROPI || + RelocationModel == llvm::Reloc::ROPI_RWPI) && + types::isCXX(Input.getType()) && + !Args.hasArg(options::OPT_fallow_unsupported)) + D.Diag(diag::err_drv_ropi_incompatible_with_cxx); + + if (RMName) { + CmdArgs.push_back("-mrelocation-model"); + CmdArgs.push_back(RMName); + } + if (PICLevel > 0) { + CmdArgs.push_back("-pic-level"); + CmdArgs.push_back(PICLevel == 1 ? "1" : "2"); + if (IsPIE) + CmdArgs.push_back("-pic-is-pie"); + } + + if (Arg *A = Args.getLastArg(options::OPT_meabi)) { + CmdArgs.push_back("-meabi"); + CmdArgs.push_back(A->getValue()); + } + + CmdArgs.push_back("-mthread-model"); + if (Arg *A = Args.getLastArg(options::OPT_mthread_model)) + CmdArgs.push_back(A->getValue()); + else + CmdArgs.push_back(Args.MakeArgString(getToolChain().getThreadModel())); + + Args.AddLastArg(CmdArgs, options::OPT_fveclib); + + if (!Args.hasFlag(options::OPT_fmerge_all_constants, + options::OPT_fno_merge_all_constants)) + CmdArgs.push_back("-fno-merge-all-constants"); + + // LLVM Code Generator Options. + + if (Args.hasArg(options::OPT_frewrite_map_file) || + Args.hasArg(options::OPT_frewrite_map_file_EQ)) { + for (const Arg *A : Args.filtered(options::OPT_frewrite_map_file, + options::OPT_frewrite_map_file_EQ)) { + StringRef Map = A->getValue(); + if (!llvm::sys::fs::exists(Map)) { + D.Diag(diag::err_drv_no_such_file) << Map; + } else { + CmdArgs.push_back("-frewrite-map-file"); + CmdArgs.push_back(A->getValue()); + A->claim(); + } + } + } + + if (Arg *A = Args.getLastArg(options::OPT_Wframe_larger_than_EQ)) { + StringRef v = A->getValue(); + CmdArgs.push_back("-mllvm"); + CmdArgs.push_back(Args.MakeArgString("-warn-stack-size=" + v)); + A->claim(); + } + + if (!Args.hasFlag(options::OPT_fjump_tables, options::OPT_fno_jump_tables, + true)) + CmdArgs.push_back("-fno-jump-tables"); + + if (!Args.hasFlag(options::OPT_fpreserve_as_comments, + options::OPT_fno_preserve_as_comments, true)) + CmdArgs.push_back("-fno-preserve-as-comments"); + + if (Arg *A = Args.getLastArg(options::OPT_mregparm_EQ)) { + CmdArgs.push_back("-mregparm"); + CmdArgs.push_back(A->getValue()); + } + + if (Arg *A = Args.getLastArg(options::OPT_fpcc_struct_return, + options::OPT_freg_struct_return)) { + if (getToolChain().getArch() != llvm::Triple::x86) { + D.Diag(diag::err_drv_unsupported_opt_for_target) + << A->getSpelling() << getToolChain().getTriple().str(); + } else if (A->getOption().matches(options::OPT_fpcc_struct_return)) { + CmdArgs.push_back("-fpcc-struct-return"); + } else { + assert(A->getOption().matches(options::OPT_freg_struct_return)); + CmdArgs.push_back("-freg-struct-return"); + } + } + + if (Args.hasFlag(options::OPT_mrtd, options::OPT_mno_rtd, false)) + CmdArgs.push_back("-fdefault-calling-conv=stdcall"); + + if (shouldUseFramePointer(Args, getToolChain().getTriple())) + CmdArgs.push_back("-mdisable-fp-elim"); + if (!Args.hasFlag(options::OPT_fzero_initialized_in_bss, + options::OPT_fno_zero_initialized_in_bss)) + CmdArgs.push_back("-mno-zero-initialized-in-bss"); + + bool OFastEnabled = isOptimizationLevelFast(Args); + // If -Ofast is the optimization level, then -fstrict-aliasing should be + // enabled. This alias option is being used to simplify the hasFlag logic. + OptSpecifier StrictAliasingAliasOption = + OFastEnabled ? options::OPT_Ofast : options::OPT_fstrict_aliasing; + // We turn strict aliasing off by default if we're in CL mode, since MSVC + // doesn't do any TBAA. + bool TBAAOnByDefault = !getToolChain().getDriver().IsCLMode(); + if (!Args.hasFlag(options::OPT_fstrict_aliasing, StrictAliasingAliasOption, + options::OPT_fno_strict_aliasing, TBAAOnByDefault)) + CmdArgs.push_back("-relaxed-aliasing"); + if (!Args.hasFlag(options::OPT_fstruct_path_tbaa, + options::OPT_fno_struct_path_tbaa)) + CmdArgs.push_back("-no-struct-path-tbaa"); + if (Args.hasFlag(options::OPT_fstrict_enums, options::OPT_fno_strict_enums, + false)) + CmdArgs.push_back("-fstrict-enums"); + if (!Args.hasFlag(options::OPT_fstrict_return, options::OPT_fno_strict_return, + true)) + CmdArgs.push_back("-fno-strict-return"); + if (Args.hasFlag(options::OPT_fallow_editor_placeholders, + options::OPT_fno_allow_editor_placeholders, false)) + CmdArgs.push_back("-fallow-editor-placeholders"); + if (Args.hasFlag(options::OPT_fstrict_vtable_pointers, + options::OPT_fno_strict_vtable_pointers, + false)) + CmdArgs.push_back("-fstrict-vtable-pointers"); + if (!Args.hasFlag(options::OPT_foptimize_sibling_calls, + options::OPT_fno_optimize_sibling_calls)) + CmdArgs.push_back("-mdisable-tail-calls"); + + // Handle segmented stacks. + if (Args.hasArg(options::OPT_fsplit_stack)) + CmdArgs.push_back("-split-stacks"); + + // Handle various floating point optimization flags, mapping them to the + // appropriate LLVM code generation flags. This is complicated by several + // "umbrella" flags, so we do this by stepping through the flags incrementally + // adjusting what we think is enabled/disabled, then at the end settting the + // LLVM flags based on the final state. + bool HonorInfs = true; + bool HonorNans = true; + // -fmath-errno is the default on some platforms, e.g. BSD-derived OSes. + bool MathErrno = getToolChain().IsMathErrnoDefault(); + bool AssociativeMath = false; + bool ReciprocalMath = false; + bool SignedZeros = true; + bool TrappingMath = true; + StringRef DenormalFpMath = ""; + StringRef FpContract = ""; + + for (Arg *A : Args) { + switch (A->getOption().getID()) { + // If this isn't an FP option skip the claim below + default: + continue; + + // Options controlling individual features + case options::OPT_fhonor_infinities: HonorInfs = true; break; + case options::OPT_fno_honor_infinities: HonorInfs = false; break; + case options::OPT_fhonor_nans: HonorNans = true; break; + case options::OPT_fno_honor_nans: HonorNans = false; break; + case options::OPT_fmath_errno: MathErrno = true; break; + case options::OPT_fno_math_errno: MathErrno = false; break; + case options::OPT_fassociative_math: AssociativeMath = true; break; + case options::OPT_fno_associative_math: AssociativeMath = false; break; + case options::OPT_freciprocal_math: ReciprocalMath = true; break; + case options::OPT_fno_reciprocal_math: ReciprocalMath = false; break; + case options::OPT_fsigned_zeros: SignedZeros = true; break; + case options::OPT_fno_signed_zeros: SignedZeros = false; break; + case options::OPT_ftrapping_math: TrappingMath = true; break; + case options::OPT_fno_trapping_math: TrappingMath = false; break; + + case options::OPT_fdenormal_fp_math_EQ: + DenormalFpMath = A->getValue(); + break; + + // Validate and pass through -fp-contract option. + case options::OPT_ffp_contract: { + StringRef Val = A->getValue(); + if (Val == "fast" || Val == "on" || Val == "off") { + FpContract = Val; + } else { + D.Diag(diag::err_drv_unsupported_option_argument) + << A->getOption().getName() << Val; + } + break; + } + + case options::OPT_ffinite_math_only: + HonorInfs = false; + HonorNans = false; + break; + case options::OPT_fno_finite_math_only: + HonorInfs = true; + HonorNans = true; + break; + + case options::OPT_funsafe_math_optimizations: + AssociativeMath = true; + ReciprocalMath = true; + SignedZeros = false; + TrappingMath = false; + break; + case options::OPT_fno_unsafe_math_optimizations: + AssociativeMath = false; + ReciprocalMath = false; + SignedZeros = true; + TrappingMath = true; + // -fno_unsafe_math_optimizations restores default denormal handling + DenormalFpMath = ""; + break; + + case options::OPT_Ofast: + // If -Ofast is the optimization level, then -ffast-math should be enabled + if (!OFastEnabled) + continue; + LLVM_FALLTHROUGH; + case options::OPT_ffast_math: + HonorInfs = false; + HonorNans = false; + MathErrno = false; + AssociativeMath = true; + ReciprocalMath = true; + SignedZeros = false; + TrappingMath = false; + // If fast-math is set then set the fp-contract mode to fast. + FpContract = "fast"; + break; + case options::OPT_fno_fast_math: + HonorInfs = true; + HonorNans = true; + // Turning on -ffast-math (with either flag) removes the need for + // MathErrno. However, turning *off* -ffast-math merely restores the + // toolchain default (which may be false). + MathErrno = getToolChain().IsMathErrnoDefault(); + AssociativeMath = false; + ReciprocalMath = false; + SignedZeros = true; + TrappingMath = true; + // -fno_fast_math restores default denormal and fpcontract handling + DenormalFpMath = ""; + FpContract = ""; + break; + } + // If we handled this option claim it + A->claim(); + } + + if (!HonorInfs) + CmdArgs.push_back("-menable-no-infs"); + + if (!HonorNans) + CmdArgs.push_back("-menable-no-nans"); + + if (MathErrno) + CmdArgs.push_back("-fmath-errno"); + + if (!MathErrno && AssociativeMath && ReciprocalMath && !SignedZeros && + !TrappingMath) + CmdArgs.push_back("-menable-unsafe-fp-math"); + + if (!SignedZeros) + CmdArgs.push_back("-fno-signed-zeros"); + + if (ReciprocalMath) + CmdArgs.push_back("-freciprocal-math"); + + if (!TrappingMath) + CmdArgs.push_back("-fno-trapping-math"); + + if (!DenormalFpMath.empty()) + CmdArgs.push_back(Args.MakeArgString("-fdenormal-fp-math="+DenormalFpMath)); + + if (!FpContract.empty()) + CmdArgs.push_back(Args.MakeArgString("-ffp-contract="+FpContract)); + + ParseMRecip(getToolChain().getDriver(), Args, CmdArgs); + + // -ffast-math enables the __FAST_MATH__ preprocessor macro, but check for the + // individual features enabled by -ffast-math instead of the option itself as + // that's consistent with gcc's behaviour. + if (!HonorInfs && !HonorNans && !MathErrno && AssociativeMath && + ReciprocalMath && !SignedZeros && !TrappingMath) + CmdArgs.push_back("-ffast-math"); + + // Handle __FINITE_MATH_ONLY__ similarly. + if (!HonorInfs && !HonorNans) + CmdArgs.push_back("-ffinite-math-only"); + + // Decide whether to use verbose asm. Verbose assembly is the default on + // toolchains which have the integrated assembler on by default. + bool IsIntegratedAssemblerDefault = + getToolChain().IsIntegratedAssemblerDefault(); + if (Args.hasFlag(options::OPT_fverbose_asm, options::OPT_fno_verbose_asm, + IsIntegratedAssemblerDefault) || + Args.hasArg(options::OPT_dA)) + CmdArgs.push_back("-masm-verbose"); + + if (!Args.hasFlag(options::OPT_fintegrated_as, options::OPT_fno_integrated_as, + IsIntegratedAssemblerDefault)) + CmdArgs.push_back("-no-integrated-as"); + + if (Args.hasArg(options::OPT_fdebug_pass_structure)) { + CmdArgs.push_back("-mdebug-pass"); + CmdArgs.push_back("Structure"); + } + if (Args.hasArg(options::OPT_fdebug_pass_arguments)) { + CmdArgs.push_back("-mdebug-pass"); + CmdArgs.push_back("Arguments"); + } + + // Enable -mconstructor-aliases except on darwin, where we have to work around + // a linker bug (see <rdar://problem/7651567>), and CUDA device code, where + // aliases aren't supported. + if (!getToolChain().getTriple().isOSDarwin() && + !getToolChain().getTriple().isNVPTX()) + CmdArgs.push_back("-mconstructor-aliases"); + + // Darwin's kernel doesn't support guard variables; just die if we + // try to use them. + if (KernelOrKext && getToolChain().getTriple().isOSDarwin()) + CmdArgs.push_back("-fforbid-guard-variables"); + + if (Args.hasFlag(options::OPT_mms_bitfields, options::OPT_mno_ms_bitfields, + false)) { + CmdArgs.push_back("-mms-bitfields"); + } + + if (Args.hasFlag(options::OPT_mpie_copy_relocations, + options::OPT_mno_pie_copy_relocations, + false)) { + CmdArgs.push_back("-mpie-copy-relocations"); + } + + // This is a coarse approximation of what llvm-gcc actually does, both + // -fasynchronous-unwind-tables and -fnon-call-exceptions interact in more + // complicated ways. + bool AsynchronousUnwindTables = + Args.hasFlag(options::OPT_fasynchronous_unwind_tables, + options::OPT_fno_asynchronous_unwind_tables, + (getToolChain().IsUnwindTablesDefault(Args) || + getToolChain().getSanitizerArgs().needsUnwindTables()) && + !KernelOrKext); + if (Args.hasFlag(options::OPT_funwind_tables, options::OPT_fno_unwind_tables, + AsynchronousUnwindTables)) + CmdArgs.push_back("-munwind-tables"); + + getToolChain().addClangTargetOptions(Args, CmdArgs, + JA.getOffloadingDeviceKind()); + + if (Arg *A = Args.getLastArg(options::OPT_flimited_precision_EQ)) { + CmdArgs.push_back("-mlimit-float-precision"); + CmdArgs.push_back(A->getValue()); + } + + // FIXME: Handle -mtune=. + (void)Args.hasArg(options::OPT_mtune_EQ); + + if (Arg *A = Args.getLastArg(options::OPT_mcmodel_EQ)) { + CmdArgs.push_back("-mcode-model"); + CmdArgs.push_back(A->getValue()); + } + + // Add the target cpu + std::string CPU = getCPUName(Args, Triple, /*FromAs*/ false); + if (!CPU.empty()) { + CmdArgs.push_back("-target-cpu"); + CmdArgs.push_back(Args.MakeArgString(CPU)); + } + + if (const Arg *A = Args.getLastArg(options::OPT_mfpmath_EQ)) { + CmdArgs.push_back("-mfpmath"); + CmdArgs.push_back(A->getValue()); + } + + // Add the target features + getTargetFeatures(getToolChain(), Triple, Args, CmdArgs, false); + + // Add target specific flags. + switch (getToolChain().getArch()) { + default: + break; + + case llvm::Triple::arm: + case llvm::Triple::armeb: + case llvm::Triple::thumb: + case llvm::Triple::thumbeb: + // Use the effective triple, which takes into account the deployment target. + AddARMTargetArgs(Triple, Args, CmdArgs, KernelOrKext); + break; + + case llvm::Triple::aarch64: + case llvm::Triple::aarch64_be: + AddAArch64TargetArgs(Args, CmdArgs); + break; + + case llvm::Triple::mips: + case llvm::Triple::mipsel: + case llvm::Triple::mips64: + case llvm::Triple::mips64el: + AddMIPSTargetArgs(Args, CmdArgs); + break; + + case llvm::Triple::ppc: + case llvm::Triple::ppc64: + case llvm::Triple::ppc64le: + AddPPCTargetArgs(Args, CmdArgs); + break; + + case llvm::Triple::sparc: + case llvm::Triple::sparcel: + case llvm::Triple::sparcv9: + AddSparcTargetArgs(Args, CmdArgs); + break; + + case llvm::Triple::systemz: + AddSystemZTargetArgs(Args, CmdArgs); + break; + + case llvm::Triple::x86: + case llvm::Triple::x86_64: + AddX86TargetArgs(Args, CmdArgs); + break; + + case llvm::Triple::lanai: + AddLanaiTargetArgs(Args, CmdArgs); + break; + + case llvm::Triple::hexagon: + AddHexagonTargetArgs(Args, CmdArgs); + break; + + case llvm::Triple::wasm32: + case llvm::Triple::wasm64: + AddWebAssemblyTargetArgs(Args, CmdArgs); + break; + } + + // The 'g' groups options involve a somewhat intricate sequence of decisions + // about what to pass from the driver to the frontend, but by the time they + // reach cc1 they've been factored into three well-defined orthogonal choices: + // * what level of debug info to generate + // * what dwarf version to write + // * what debugger tuning to use + // This avoids having to monkey around further in cc1 other than to disable + // codeview if not running in a Windows environment. Perhaps even that + // decision should be made in the driver as well though. + unsigned DwarfVersion = 0; + llvm::DebuggerKind DebuggerTuning = getToolChain().getDefaultDebuggerTuning(); + // These two are potentially updated by AddClangCLArgs. + codegenoptions::DebugInfoKind DebugInfoKind = codegenoptions::NoDebugInfo; + bool EmitCodeView = false; + + // Add clang-cl arguments. + types::ID InputType = Input.getType(); + if (getToolChain().getDriver().IsCLMode()) + AddClangCLArgs(Args, InputType, CmdArgs, &DebugInfoKind, &EmitCodeView); + + // Pass the linker version in use. + if (Arg *A = Args.getLastArg(options::OPT_mlinker_version_EQ)) { + CmdArgs.push_back("-target-linker-version"); + CmdArgs.push_back(A->getValue()); + } + + if (!shouldUseLeafFramePointer(Args, getToolChain().getTriple())) + CmdArgs.push_back("-momit-leaf-frame-pointer"); + + // Explicitly error on some things we know we don't support and can't just + // ignore. + if (!Args.hasArg(options::OPT_fallow_unsupported)) { + Arg *Unsupported; + if (types::isCXX(InputType) && getToolChain().getTriple().isOSDarwin() && + getToolChain().getArch() == llvm::Triple::x86) { + if ((Unsupported = Args.getLastArg(options::OPT_fapple_kext)) || + (Unsupported = Args.getLastArg(options::OPT_mkernel))) + D.Diag(diag::err_drv_clang_unsupported_opt_cxx_darwin_i386) + << Unsupported->getOption().getName(); + } + // The faltivec option has been superseded by the maltivec option. + if ((Unsupported = Args.getLastArg(options::OPT_faltivec))) + D.Diag(diag::err_drv_clang_unsupported_opt_faltivec) + << Unsupported->getOption().getName() + << "please use -maltivec and include altivec.h explicitly"; + if ((Unsupported = Args.getLastArg(options::OPT_fno_altivec))) + D.Diag(diag::err_drv_clang_unsupported_opt_faltivec) + << Unsupported->getOption().getName() << "please use -mno-altivec"; + } + + Args.AddAllArgs(CmdArgs, options::OPT_v); + Args.AddLastArg(CmdArgs, options::OPT_H); + if (D.CCPrintHeaders && !D.CCGenDiagnostics) { + CmdArgs.push_back("-header-include-file"); + CmdArgs.push_back(D.CCPrintHeadersFilename ? D.CCPrintHeadersFilename + : "-"); + } + Args.AddLastArg(CmdArgs, options::OPT_P); + Args.AddLastArg(CmdArgs, options::OPT_print_ivar_layout); + + if (D.CCLogDiagnostics && !D.CCGenDiagnostics) { + CmdArgs.push_back("-diagnostic-log-file"); + CmdArgs.push_back(D.CCLogDiagnosticsFilename ? D.CCLogDiagnosticsFilename + : "-"); + } + + bool splitDwarfInlining = + Args.hasFlag(options::OPT_fsplit_dwarf_inlining, + options::OPT_fno_split_dwarf_inlining, true); + + Args.ClaimAllArgs(options::OPT_g_Group); + Arg *SplitDwarfArg = Args.getLastArg(options::OPT_gsplit_dwarf); + if (Arg *A = Args.getLastArg(options::OPT_g_Group)) { + // If the last option explicitly specified a debug-info level, use it. + if (A->getOption().matches(options::OPT_gN_Group)) { + DebugInfoKind = DebugLevelToInfoKind(*A); + // If you say "-gsplit-dwarf -gline-tables-only", -gsplit-dwarf loses. + // But -gsplit-dwarf is not a g_group option, hence we have to check the + // order explicitly. (If -gsplit-dwarf wins, we fix DebugInfoKind later.) + // This gets a bit more complicated if you've disabled inline info in the + // skeleton CUs (splitDwarfInlining) - then there's value in composing + // split-dwarf and line-tables-only, so let those compose naturally in + // that case. + // And if you just turned off debug info, (-gsplit-dwarf -g0) - do that. + if (SplitDwarfArg) { + if (A->getIndex() > SplitDwarfArg->getIndex()) { + if (DebugInfoKind == codegenoptions::NoDebugInfo || + (DebugInfoKind == codegenoptions::DebugLineTablesOnly && + splitDwarfInlining)) + SplitDwarfArg = nullptr; + } else if (splitDwarfInlining) + DebugInfoKind = codegenoptions::NoDebugInfo; + } + } else + // For any other 'g' option, use Limited. + DebugInfoKind = codegenoptions::LimitedDebugInfo; + } + + // If a debugger tuning argument appeared, remember it. + if (Arg *A = Args.getLastArg(options::OPT_gTune_Group, + options::OPT_ggdbN_Group)) { + if (A->getOption().matches(options::OPT_glldb)) + DebuggerTuning = llvm::DebuggerKind::LLDB; + else if (A->getOption().matches(options::OPT_gsce)) + DebuggerTuning = llvm::DebuggerKind::SCE; + else + DebuggerTuning = llvm::DebuggerKind::GDB; + } + + // If a -gdwarf argument appeared, remember it. + if (Arg *A = Args.getLastArg(options::OPT_gdwarf_2, options::OPT_gdwarf_3, + options::OPT_gdwarf_4, options::OPT_gdwarf_5)) + DwarfVersion = DwarfVersionNum(A->getSpelling()); + + // Forward -gcodeview. EmitCodeView might have been set by CL-compatibility + // argument parsing. + if (Args.hasArg(options::OPT_gcodeview) || EmitCodeView) { + // DwarfVersion remains at 0 if no explicit choice was made. + CmdArgs.push_back("-gcodeview"); + } else if (DwarfVersion == 0 && + DebugInfoKind != codegenoptions::NoDebugInfo) { + DwarfVersion = getToolChain().GetDefaultDwarfVersion(); + } + + // We ignore flag -gstrict-dwarf for now. + // And we handle flag -grecord-gcc-switches later with DwarfDebugFlags. + Args.ClaimAllArgs(options::OPT_g_flags_Group); + + // Column info is included by default for everything except PS4 and CodeView. + // Clang doesn't track end columns, just starting columns, which, in theory, + // is fine for CodeView (and PDB). In practice, however, the Microsoft + // debuggers don't handle missing end columns well, so it's better not to + // include any column info. + if (Args.hasFlag(options::OPT_gcolumn_info, options::OPT_gno_column_info, + /*Default=*/ !IsPS4CPU && !(IsWindowsMSVC && EmitCodeView))) + CmdArgs.push_back("-dwarf-column-info"); + + // FIXME: Move backend command line options to the module. + // If -gline-tables-only is the last option it wins. + if (DebugInfoKind != codegenoptions::DebugLineTablesOnly && + Args.hasArg(options::OPT_gmodules)) { + DebugInfoKind = codegenoptions::LimitedDebugInfo; + CmdArgs.push_back("-dwarf-ext-refs"); + CmdArgs.push_back("-fmodule-format=obj"); + } + + // -gsplit-dwarf should turn on -g and enable the backend dwarf + // splitting and extraction. + // FIXME: Currently only works on Linux. + if (getToolChain().getTriple().isOSLinux()) { + if (!splitDwarfInlining) + CmdArgs.push_back("-fno-split-dwarf-inlining"); + if (SplitDwarfArg) { + if (DebugInfoKind == codegenoptions::NoDebugInfo) + DebugInfoKind = codegenoptions::LimitedDebugInfo; + CmdArgs.push_back("-enable-split-dwarf"); + } + } + + // After we've dealt with all combinations of things that could + // make DebugInfoKind be other than None or DebugLineTablesOnly, + // figure out if we need to "upgrade" it to standalone debug info. + // We parse these two '-f' options whether or not they will be used, + // to claim them even if you wrote "-fstandalone-debug -gline-tables-only" + bool NeedFullDebug = Args.hasFlag(options::OPT_fstandalone_debug, + options::OPT_fno_standalone_debug, + getToolChain().GetDefaultStandaloneDebug()); + if (DebugInfoKind == codegenoptions::LimitedDebugInfo && NeedFullDebug) + DebugInfoKind = codegenoptions::FullDebugInfo; + RenderDebugEnablingArgs(Args, CmdArgs, DebugInfoKind, DwarfVersion, + DebuggerTuning); + + // -fdebug-macro turns on macro debug info generation. + if (Args.hasFlag(options::OPT_fdebug_macro, options::OPT_fno_debug_macro, + false)) + CmdArgs.push_back("-debug-info-macro"); + + // -ggnu-pubnames turns on gnu style pubnames in the backend. + if (Args.hasArg(options::OPT_ggnu_pubnames)) { + CmdArgs.push_back("-backend-option"); + CmdArgs.push_back("-generate-gnu-dwarf-pub-sections"); + } + + // -gdwarf-aranges turns on the emission of the aranges section in the + // backend. + // Always enabled on the PS4. + if (Args.hasArg(options::OPT_gdwarf_aranges) || IsPS4CPU) { + CmdArgs.push_back("-backend-option"); + CmdArgs.push_back("-generate-arange-section"); + } + + if (Args.hasFlag(options::OPT_fdebug_types_section, + options::OPT_fno_debug_types_section, false)) { + CmdArgs.push_back("-backend-option"); + CmdArgs.push_back("-generate-type-units"); + } + + RenderDebugInfoCompressionArgs(Args, CmdArgs, D); + + bool UseSeparateSections = isUseSeparateSections(Triple); + + if (Args.hasFlag(options::OPT_ffunction_sections, + options::OPT_fno_function_sections, UseSeparateSections)) { + CmdArgs.push_back("-ffunction-sections"); + } + + if (Args.hasFlag(options::OPT_fdata_sections, options::OPT_fno_data_sections, + UseSeparateSections)) { + CmdArgs.push_back("-fdata-sections"); + } + + if (!Args.hasFlag(options::OPT_funique_section_names, + options::OPT_fno_unique_section_names, true)) + CmdArgs.push_back("-fno-unique-section-names"); + + Args.AddAllArgs(CmdArgs, options::OPT_finstrument_functions); + + addPGOAndCoverageFlags(C, D, Output, Args, CmdArgs); + + if (auto *ABICompatArg = Args.getLastArg(options::OPT_fclang_abi_compat_EQ)) + ABICompatArg->render(Args, CmdArgs); + + // Add runtime flag for PS4 when PGO or Coverage are enabled. + if (getToolChain().getTriple().isPS4CPU()) + PS4cpu::addProfileRTArgs(getToolChain(), Args, CmdArgs); + + // Pass options for controlling the default header search paths. + if (Args.hasArg(options::OPT_nostdinc)) { + CmdArgs.push_back("-nostdsysteminc"); + CmdArgs.push_back("-nobuiltininc"); + } else { + if (Args.hasArg(options::OPT_nostdlibinc)) + CmdArgs.push_back("-nostdsysteminc"); + Args.AddLastArg(CmdArgs, options::OPT_nostdincxx); + Args.AddLastArg(CmdArgs, options::OPT_nobuiltininc); + } + + // Pass the path to compiler resource files. + CmdArgs.push_back("-resource-dir"); + CmdArgs.push_back(D.ResourceDir.c_str()); + + Args.AddLastArg(CmdArgs, options::OPT_working_directory); + + bool ARCMTEnabled = false; + if (!Args.hasArg(options::OPT_fno_objc_arc, options::OPT_fobjc_arc)) { + if (const Arg *A = Args.getLastArg(options::OPT_ccc_arcmt_check, + options::OPT_ccc_arcmt_modify, + options::OPT_ccc_arcmt_migrate)) { + ARCMTEnabled = true; + switch (A->getOption().getID()) { + default: + llvm_unreachable("missed a case"); + case options::OPT_ccc_arcmt_check: + CmdArgs.push_back("-arcmt-check"); + break; + case options::OPT_ccc_arcmt_modify: + CmdArgs.push_back("-arcmt-modify"); + break; + case options::OPT_ccc_arcmt_migrate: + CmdArgs.push_back("-arcmt-migrate"); + CmdArgs.push_back("-mt-migrate-directory"); + CmdArgs.push_back(A->getValue()); + + Args.AddLastArg(CmdArgs, options::OPT_arcmt_migrate_report_output); + Args.AddLastArg(CmdArgs, options::OPT_arcmt_migrate_emit_arc_errors); + break; + } + } + } else { + Args.ClaimAllArgs(options::OPT_ccc_arcmt_check); + Args.ClaimAllArgs(options::OPT_ccc_arcmt_modify); + Args.ClaimAllArgs(options::OPT_ccc_arcmt_migrate); + } + + if (const Arg *A = Args.getLastArg(options::OPT_ccc_objcmt_migrate)) { + if (ARCMTEnabled) { + D.Diag(diag::err_drv_argument_not_allowed_with) << A->getAsString(Args) + << "-ccc-arcmt-migrate"; + } + CmdArgs.push_back("-mt-migrate-directory"); + CmdArgs.push_back(A->getValue()); + + if (!Args.hasArg(options::OPT_objcmt_migrate_literals, + options::OPT_objcmt_migrate_subscripting, + options::OPT_objcmt_migrate_property)) { + // None specified, means enable them all. + CmdArgs.push_back("-objcmt-migrate-literals"); + CmdArgs.push_back("-objcmt-migrate-subscripting"); + CmdArgs.push_back("-objcmt-migrate-property"); + } else { + Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_literals); + Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_subscripting); + Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property); + } + } else { + Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_literals); + Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_subscripting); + Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property); + Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_all); + Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_readonly_property); + Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_readwrite_property); + Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_property_dot_syntax); + Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_annotation); + Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_instancetype); + Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_nsmacros); + Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_protocol_conformance); + Args.AddLastArg(CmdArgs, options::OPT_objcmt_atomic_property); + Args.AddLastArg(CmdArgs, options::OPT_objcmt_returns_innerpointer_property); + Args.AddLastArg(CmdArgs, options::OPT_objcmt_ns_nonatomic_iosonly); + Args.AddLastArg(CmdArgs, options::OPT_objcmt_migrate_designated_init); + Args.AddLastArg(CmdArgs, options::OPT_objcmt_whitelist_dir_path); + } + + // Add preprocessing options like -I, -D, etc. if we are using the + // preprocessor. + // + // FIXME: Support -fpreprocessed + if (types::getPreprocessedType(InputType) != types::TY_INVALID) + AddPreprocessingOptions(C, JA, D, Args, CmdArgs, Output, Inputs); + + // Don't warn about "clang -c -DPIC -fPIC test.i" because libtool.m4 assumes + // that "The compiler can only warn and ignore the option if not recognized". + // When building with ccache, it will pass -D options to clang even on + // preprocessed inputs and configure concludes that -fPIC is not supported. + Args.ClaimAllArgs(options::OPT_D); + + // Manually translate -O4 to -O3; let clang reject others. + if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { + if (A->getOption().matches(options::OPT_O4)) { + CmdArgs.push_back("-O3"); + D.Diag(diag::warn_O4_is_O3); + } else { + A->render(Args, CmdArgs); + } + } + + // Warn about ignored options to clang. + for (const Arg *A : + Args.filtered(options::OPT_clang_ignored_gcc_optimization_f_Group)) { + D.Diag(diag::warn_ignored_gcc_optimization) << A->getAsString(Args); + A->claim(); + } + + for (const Arg *A : + Args.filtered(options::OPT_clang_ignored_legacy_options_Group)) { + D.Diag(diag::warn_ignored_clang_option) << A->getAsString(Args); + A->claim(); + } + + claimNoWarnArgs(Args); + + Args.AddAllArgs(CmdArgs, options::OPT_R_Group); + + Args.AddAllArgs(CmdArgs, options::OPT_W_Group); + if (Args.hasFlag(options::OPT_pedantic, options::OPT_no_pedantic, false)) + CmdArgs.push_back("-pedantic"); + Args.AddLastArg(CmdArgs, options::OPT_pedantic_errors); + Args.AddLastArg(CmdArgs, options::OPT_w); + + // Handle -{std, ansi, trigraphs} -- take the last of -{std, ansi} + // (-ansi is equivalent to -std=c89 or -std=c++98). + // + // If a std is supplied, only add -trigraphs if it follows the + // option. + bool ImplyVCPPCXXVer = false; + if (Arg *Std = Args.getLastArg(options::OPT_std_EQ, options::OPT_ansi)) { + if (Std->getOption().matches(options::OPT_ansi)) + if (types::isCXX(InputType)) + CmdArgs.push_back("-std=c++98"); + else + CmdArgs.push_back("-std=c89"); + else + Std->render(Args, CmdArgs); + + // If -f(no-)trigraphs appears after the language standard flag, honor it. + if (Arg *A = Args.getLastArg(options::OPT_std_EQ, options::OPT_ansi, + options::OPT_ftrigraphs, + options::OPT_fno_trigraphs)) + if (A != Std) + A->render(Args, CmdArgs); + } else { + // Honor -std-default. + // + // FIXME: Clang doesn't correctly handle -std= when the input language + // doesn't match. For the time being just ignore this for C++ inputs; + // eventually we want to do all the standard defaulting here instead of + // splitting it between the driver and clang -cc1. + if (!types::isCXX(InputType)) + Args.AddAllArgsTranslated(CmdArgs, options::OPT_std_default_EQ, "-std=", + /*Joined=*/true); + else if (IsWindowsMSVC) + ImplyVCPPCXXVer = true; + + Args.AddLastArg(CmdArgs, options::OPT_ftrigraphs, + options::OPT_fno_trigraphs); + } + + // GCC's behavior for -Wwrite-strings is a bit strange: + // * In C, this "warning flag" changes the types of string literals from + // 'char[N]' to 'const char[N]', and thus triggers an unrelated warning + // for the discarded qualifier. + // * In C++, this is just a normal warning flag. + // + // Implementing this warning correctly in C is hard, so we follow GCC's + // behavior for now. FIXME: Directly diagnose uses of a string literal as + // a non-const char* in C, rather than using this crude hack. + if (!types::isCXX(InputType)) { + // FIXME: This should behave just like a warning flag, and thus should also + // respect -Weverything, -Wno-everything, -Werror=write-strings, and so on. + Arg *WriteStrings = + Args.getLastArg(options::OPT_Wwrite_strings, + options::OPT_Wno_write_strings, options::OPT_w); + if (WriteStrings && + WriteStrings->getOption().matches(options::OPT_Wwrite_strings)) + CmdArgs.push_back("-fconst-strings"); + } + + // GCC provides a macro definition '__DEPRECATED' when -Wdeprecated is active + // during C++ compilation, which it is by default. GCC keeps this define even + // in the presence of '-w', match this behavior bug-for-bug. + if (types::isCXX(InputType) && + Args.hasFlag(options::OPT_Wdeprecated, options::OPT_Wno_deprecated, + true)) { + CmdArgs.push_back("-fdeprecated-macro"); + } + + // Translate GCC's misnamer '-fasm' arguments to '-fgnu-keywords'. + if (Arg *Asm = Args.getLastArg(options::OPT_fasm, options::OPT_fno_asm)) { + if (Asm->getOption().matches(options::OPT_fasm)) + CmdArgs.push_back("-fgnu-keywords"); + else + CmdArgs.push_back("-fno-gnu-keywords"); + } + + if (ShouldDisableDwarfDirectory(Args, getToolChain())) + CmdArgs.push_back("-fno-dwarf-directory-asm"); + + if (ShouldDisableAutolink(Args, getToolChain())) + CmdArgs.push_back("-fno-autolink"); + + // Add in -fdebug-compilation-dir if necessary. + addDebugCompDirArg(Args, CmdArgs); + + for (const Arg *A : Args.filtered(options::OPT_fdebug_prefix_map_EQ)) { + StringRef Map = A->getValue(); + if (Map.find('=') == StringRef::npos) + D.Diag(diag::err_drv_invalid_argument_to_fdebug_prefix_map) << Map; + else + CmdArgs.push_back(Args.MakeArgString("-fdebug-prefix-map=" + Map)); + A->claim(); + } + + if (Arg *A = Args.getLastArg(options::OPT_ftemplate_depth_, + options::OPT_ftemplate_depth_EQ)) { + CmdArgs.push_back("-ftemplate-depth"); + CmdArgs.push_back(A->getValue()); + } + + if (Arg *A = Args.getLastArg(options::OPT_foperator_arrow_depth_EQ)) { + CmdArgs.push_back("-foperator-arrow-depth"); + CmdArgs.push_back(A->getValue()); + } + + if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_depth_EQ)) { + CmdArgs.push_back("-fconstexpr-depth"); + CmdArgs.push_back(A->getValue()); + } + + if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_steps_EQ)) { + CmdArgs.push_back("-fconstexpr-steps"); + CmdArgs.push_back(A->getValue()); + } + + if (Arg *A = Args.getLastArg(options::OPT_fbracket_depth_EQ)) { + CmdArgs.push_back("-fbracket-depth"); + CmdArgs.push_back(A->getValue()); + } + + if (Arg *A = Args.getLastArg(options::OPT_Wlarge_by_value_copy_EQ, + options::OPT_Wlarge_by_value_copy_def)) { + if (A->getNumValues()) { + StringRef bytes = A->getValue(); + CmdArgs.push_back(Args.MakeArgString("-Wlarge-by-value-copy=" + bytes)); + } else + CmdArgs.push_back("-Wlarge-by-value-copy=64"); // default value + } + + if (Args.hasArg(options::OPT_relocatable_pch)) + CmdArgs.push_back("-relocatable-pch"); + + if (Arg *A = Args.getLastArg(options::OPT_fconstant_string_class_EQ)) { + CmdArgs.push_back("-fconstant-string-class"); + CmdArgs.push_back(A->getValue()); + } + + if (Arg *A = Args.getLastArg(options::OPT_ftabstop_EQ)) { + CmdArgs.push_back("-ftabstop"); + CmdArgs.push_back(A->getValue()); + } + + CmdArgs.push_back("-ferror-limit"); + if (Arg *A = Args.getLastArg(options::OPT_ferror_limit_EQ)) + CmdArgs.push_back(A->getValue()); + else + CmdArgs.push_back("19"); + + if (Arg *A = Args.getLastArg(options::OPT_fmacro_backtrace_limit_EQ)) { + CmdArgs.push_back("-fmacro-backtrace-limit"); + CmdArgs.push_back(A->getValue()); + } + + if (Arg *A = Args.getLastArg(options::OPT_ftemplate_backtrace_limit_EQ)) { + CmdArgs.push_back("-ftemplate-backtrace-limit"); + CmdArgs.push_back(A->getValue()); + } + + if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_backtrace_limit_EQ)) { + CmdArgs.push_back("-fconstexpr-backtrace-limit"); + CmdArgs.push_back(A->getValue()); + } + + if (Arg *A = Args.getLastArg(options::OPT_fspell_checking_limit_EQ)) { + CmdArgs.push_back("-fspell-checking-limit"); + CmdArgs.push_back(A->getValue()); + } + + // Pass -fmessage-length=. + CmdArgs.push_back("-fmessage-length"); + if (Arg *A = Args.getLastArg(options::OPT_fmessage_length_EQ)) { + CmdArgs.push_back(A->getValue()); + } else { + // If -fmessage-length=N was not specified, determine whether this is a + // terminal and, if so, implicitly define -fmessage-length appropriately. + unsigned N = llvm::sys::Process::StandardErrColumns(); + CmdArgs.push_back(Args.MakeArgString(Twine(N))); + } + + // -fvisibility= and -fvisibility-ms-compat are of a piece. + if (const Arg *A = Args.getLastArg(options::OPT_fvisibility_EQ, + options::OPT_fvisibility_ms_compat)) { + if (A->getOption().matches(options::OPT_fvisibility_EQ)) { + CmdArgs.push_back("-fvisibility"); + CmdArgs.push_back(A->getValue()); + } else { + assert(A->getOption().matches(options::OPT_fvisibility_ms_compat)); + CmdArgs.push_back("-fvisibility"); + CmdArgs.push_back("hidden"); + CmdArgs.push_back("-ftype-visibility"); + CmdArgs.push_back("default"); + } + } + + Args.AddLastArg(CmdArgs, options::OPT_fvisibility_inlines_hidden); + + Args.AddLastArg(CmdArgs, options::OPT_ftlsmodel_EQ); + + // -fhosted is default. + bool IsHosted = true; + if (Args.hasFlag(options::OPT_ffreestanding, options::OPT_fhosted, false) || + KernelOrKext) { + CmdArgs.push_back("-ffreestanding"); + IsHosted = false; + } + + // Forward -f (flag) options which we can pass directly. + Args.AddLastArg(CmdArgs, options::OPT_femit_all_decls); + Args.AddLastArg(CmdArgs, options::OPT_fheinous_gnu_extensions); + Args.AddLastArg(CmdArgs, options::OPT_fno_operator_names); + // Emulated TLS is enabled by default on Android and OpenBSD, and can be enabled + // manually with -femulated-tls. + bool EmulatedTLSDefault = Triple.isAndroid() || Triple.isOSOpenBSD() || + Triple.isWindowsCygwinEnvironment(); + if (Args.hasFlag(options::OPT_femulated_tls, options::OPT_fno_emulated_tls, + EmulatedTLSDefault)) + CmdArgs.push_back("-femulated-tls"); + // AltiVec-like language extensions aren't relevant for assembling. + if (!isa<PreprocessJobAction>(JA) || Output.getType() != types::TY_PP_Asm) + Args.AddLastArg(CmdArgs, options::OPT_fzvector); + + Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_show_template_tree); + Args.AddLastArg(CmdArgs, options::OPT_fno_elide_type); + + // Forward flags for OpenMP. We don't do this if the current action is an + // device offloading action other than OpenMP. + if (Args.hasFlag(options::OPT_fopenmp, options::OPT_fopenmp_EQ, + options::OPT_fno_openmp, false) && + (JA.isDeviceOffloading(Action::OFK_None) || + JA.isDeviceOffloading(Action::OFK_OpenMP))) { + switch (getToolChain().getDriver().getOpenMPRuntime(Args)) { + case Driver::OMPRT_OMP: + case Driver::OMPRT_IOMP5: + // Clang can generate useful OpenMP code for these two runtime libraries. + CmdArgs.push_back("-fopenmp"); + + // If no option regarding the use of TLS in OpenMP codegeneration is + // given, decide a default based on the target. Otherwise rely on the + // options and pass the right information to the frontend. + if (!Args.hasFlag(options::OPT_fopenmp_use_tls, + options::OPT_fnoopenmp_use_tls, /*Default=*/true)) + CmdArgs.push_back("-fnoopenmp-use-tls"); + Args.AddAllArgs(CmdArgs, options::OPT_fopenmp_version_EQ); + break; + default: + // By default, if Clang doesn't know how to generate useful OpenMP code + // for a specific runtime library, we just don't pass the '-fopenmp' flag + // down to the actual compilation. + // FIXME: It would be better to have a mode which *only* omits IR + // generation based on the OpenMP support so that we get consistent + // semantic analysis, etc. + break; + } + } + + const SanitizerArgs &Sanitize = getToolChain().getSanitizerArgs(); + Sanitize.addArgs(getToolChain(), Args, CmdArgs, InputType); + + const XRayArgs &XRay = getToolChain().getXRayArgs(); + XRay.addArgs(getToolChain(), Args, CmdArgs, InputType); + + if (getToolChain().SupportsProfiling()) + Args.AddLastArg(CmdArgs, options::OPT_pg); + + if (getToolChain().SupportsProfiling()) + Args.AddLastArg(CmdArgs, options::OPT_mfentry); + + // -flax-vector-conversions is default. + if (!Args.hasFlag(options::OPT_flax_vector_conversions, + options::OPT_fno_lax_vector_conversions)) + CmdArgs.push_back("-fno-lax-vector-conversions"); + + if (Args.getLastArg(options::OPT_fapple_kext) || + (Args.hasArg(options::OPT_mkernel) && types::isCXX(InputType))) + CmdArgs.push_back("-fapple-kext"); + + Args.AddLastArg(CmdArgs, options::OPT_fobjc_sender_dependent_dispatch); + Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_print_source_range_info); + Args.AddLastArg(CmdArgs, options::OPT_fdiagnostics_parseable_fixits); + Args.AddLastArg(CmdArgs, options::OPT_ftime_report); + Args.AddLastArg(CmdArgs, options::OPT_ftrapv); + + if (Arg *A = Args.getLastArg(options::OPT_ftrapv_handler_EQ)) { + CmdArgs.push_back("-ftrapv-handler"); + CmdArgs.push_back(A->getValue()); + } + + Args.AddLastArg(CmdArgs, options::OPT_ftrap_function_EQ); + + // -fno-strict-overflow implies -fwrapv if it isn't disabled, but + // -fstrict-overflow won't turn off an explicitly enabled -fwrapv. + if (Arg *A = Args.getLastArg(options::OPT_fwrapv, options::OPT_fno_wrapv)) { + if (A->getOption().matches(options::OPT_fwrapv)) + CmdArgs.push_back("-fwrapv"); + } else if (Arg *A = Args.getLastArg(options::OPT_fstrict_overflow, + options::OPT_fno_strict_overflow)) { + if (A->getOption().matches(options::OPT_fno_strict_overflow)) + CmdArgs.push_back("-fwrapv"); + } + + if (Arg *A = Args.getLastArg(options::OPT_freroll_loops, + options::OPT_fno_reroll_loops)) + if (A->getOption().matches(options::OPT_freroll_loops)) + CmdArgs.push_back("-freroll-loops"); + + Args.AddLastArg(CmdArgs, options::OPT_fwritable_strings); + Args.AddLastArg(CmdArgs, options::OPT_funroll_loops, + options::OPT_fno_unroll_loops); + + Args.AddLastArg(CmdArgs, options::OPT_pthread); + + // -stack-protector=0 is default. + unsigned StackProtectorLevel = 0; + // NVPTX doesn't support stack protectors; from the compiler's perspective, it + // doesn't even have a stack! + if (!Triple.isNVPTX()) { + if (Arg *A = Args.getLastArg(options::OPT_fno_stack_protector, + options::OPT_fstack_protector_all, + options::OPT_fstack_protector_strong, + options::OPT_fstack_protector)) { + if (A->getOption().matches(options::OPT_fstack_protector)) { + StackProtectorLevel = std::max<unsigned>( + LangOptions::SSPOn, + getToolChain().GetDefaultStackProtectorLevel(KernelOrKext)); + } else if (A->getOption().matches(options::OPT_fstack_protector_strong)) + StackProtectorLevel = LangOptions::SSPStrong; + else if (A->getOption().matches(options::OPT_fstack_protector_all)) + StackProtectorLevel = LangOptions::SSPReq; + } else { + StackProtectorLevel = + getToolChain().GetDefaultStackProtectorLevel(KernelOrKext); + // Only use a default stack protector on Darwin in case -ffreestanding + // is not specified. + if (Triple.isOSDarwin() && !IsHosted) + StackProtectorLevel = 0; + } + } + if (StackProtectorLevel) { + CmdArgs.push_back("-stack-protector"); + CmdArgs.push_back(Args.MakeArgString(Twine(StackProtectorLevel))); + } + + // --param ssp-buffer-size= + for (const Arg *A : Args.filtered(options::OPT__param)) { + StringRef Str(A->getValue()); + if (Str.startswith("ssp-buffer-size=")) { + if (StackProtectorLevel) { + CmdArgs.push_back("-stack-protector-buffer-size"); + // FIXME: Verify the argument is a valid integer. + CmdArgs.push_back(Args.MakeArgString(Str.drop_front(16))); + } + A->claim(); + } + } + + // Translate -mstackrealign + if (Args.hasFlag(options::OPT_mstackrealign, options::OPT_mno_stackrealign, + false)) + CmdArgs.push_back(Args.MakeArgString("-mstackrealign")); + + if (Args.hasArg(options::OPT_mstack_alignment)) { + StringRef alignment = Args.getLastArgValue(options::OPT_mstack_alignment); + CmdArgs.push_back(Args.MakeArgString("-mstack-alignment=" + alignment)); + } + + if (Args.hasArg(options::OPT_mstack_probe_size)) { + StringRef Size = Args.getLastArgValue(options::OPT_mstack_probe_size); + + if (!Size.empty()) + CmdArgs.push_back(Args.MakeArgString("-mstack-probe-size=" + Size)); + else + CmdArgs.push_back("-mstack-probe-size=0"); + } + + switch (getToolChain().getArch()) { + case llvm::Triple::aarch64: + case llvm::Triple::aarch64_be: + case llvm::Triple::arm: + case llvm::Triple::armeb: + case llvm::Triple::thumb: + case llvm::Triple::thumbeb: + CmdArgs.push_back("-fallow-half-arguments-and-returns"); + break; + + default: + break; + } + + if (Arg *A = Args.getLastArg(options::OPT_mrestrict_it, + options::OPT_mno_restrict_it)) { + if (A->getOption().matches(options::OPT_mrestrict_it)) { + CmdArgs.push_back("-backend-option"); + CmdArgs.push_back("-arm-restrict-it"); + } else { + CmdArgs.push_back("-backend-option"); + CmdArgs.push_back("-arm-no-restrict-it"); + } + } else if (Triple.isOSWindows() && + (Triple.getArch() == llvm::Triple::arm || + Triple.getArch() == llvm::Triple::thumb)) { + // Windows on ARM expects restricted IT blocks + CmdArgs.push_back("-backend-option"); + CmdArgs.push_back("-arm-restrict-it"); + } + + // Forward -cl options to -cc1 + if (Args.getLastArg(options::OPT_cl_opt_disable)) { + CmdArgs.push_back("-cl-opt-disable"); + } + if (Args.getLastArg(options::OPT_cl_strict_aliasing)) { + CmdArgs.push_back("-cl-strict-aliasing"); + } + if (Args.getLastArg(options::OPT_cl_single_precision_constant)) { + CmdArgs.push_back("-cl-single-precision-constant"); + } + if (Args.getLastArg(options::OPT_cl_finite_math_only)) { + CmdArgs.push_back("-cl-finite-math-only"); + } + if (Args.getLastArg(options::OPT_cl_kernel_arg_info)) { + CmdArgs.push_back("-cl-kernel-arg-info"); + } + if (Args.getLastArg(options::OPT_cl_unsafe_math_optimizations)) { + CmdArgs.push_back("-cl-unsafe-math-optimizations"); + } + if (Args.getLastArg(options::OPT_cl_fast_relaxed_math)) { + CmdArgs.push_back("-cl-fast-relaxed-math"); + } + if (Args.getLastArg(options::OPT_cl_mad_enable)) { + CmdArgs.push_back("-cl-mad-enable"); + } + if (Args.getLastArg(options::OPT_cl_no_signed_zeros)) { + CmdArgs.push_back("-cl-no-signed-zeros"); + } + if (Arg *A = Args.getLastArg(options::OPT_cl_std_EQ)) { + std::string CLStdStr = "-cl-std="; + CLStdStr += A->getValue(); + CmdArgs.push_back(Args.MakeArgString(CLStdStr)); + } + if (Args.getLastArg(options::OPT_cl_denorms_are_zero)) { + CmdArgs.push_back("-cl-denorms-are-zero"); + } + if (Args.getLastArg(options::OPT_cl_fp32_correctly_rounded_divide_sqrt)) { + CmdArgs.push_back("-cl-fp32-correctly-rounded-divide-sqrt"); + } + + // Forward -f options with positive and negative forms; we translate + // these by hand. + if (Arg *A = getLastProfileSampleUseArg(Args)) { + StringRef fname = A->getValue(); + if (!llvm::sys::fs::exists(fname)) + D.Diag(diag::err_drv_no_such_file) << fname; + else + A->render(Args, CmdArgs); + } + + if (Args.hasFlag(options::OPT_fdebug_info_for_profiling, + options::OPT_fno_debug_info_for_profiling, false)) + CmdArgs.push_back("-fdebug-info-for-profiling"); + + // -fbuiltin is default unless -mkernel is used. + bool UseBuiltins = + Args.hasFlag(options::OPT_fbuiltin, options::OPT_fno_builtin, + !Args.hasArg(options::OPT_mkernel)); + if (!UseBuiltins) + CmdArgs.push_back("-fno-builtin"); + + // -ffreestanding implies -fno-builtin. + if (Args.hasArg(options::OPT_ffreestanding)) + UseBuiltins = false; + + // Process the -fno-builtin-* options. + for (const auto &Arg : Args) { + const Option &O = Arg->getOption(); + if (!O.matches(options::OPT_fno_builtin_)) + continue; + + Arg->claim(); + // If -fno-builtin is specified, then there's no need to pass the option to + // the frontend. + if (!UseBuiltins) + continue; + + StringRef FuncName = Arg->getValue(); + CmdArgs.push_back(Args.MakeArgString("-fno-builtin-" + FuncName)); + } + + if (!Args.hasFlag(options::OPT_fassume_sane_operator_new, + options::OPT_fno_assume_sane_operator_new)) + CmdArgs.push_back("-fno-assume-sane-operator-new"); + + // -fblocks=0 is default. + if (Args.hasFlag(options::OPT_fblocks, options::OPT_fno_blocks, + getToolChain().IsBlocksDefault()) || + (Args.hasArg(options::OPT_fgnu_runtime) && + Args.hasArg(options::OPT_fobjc_nonfragile_abi) && + !Args.hasArg(options::OPT_fno_blocks))) { + CmdArgs.push_back("-fblocks"); + + if (!Args.hasArg(options::OPT_fgnu_runtime) && + !getToolChain().hasBlocksRuntime()) + CmdArgs.push_back("-fblocks-runtime-optional"); + } + + if (Args.hasFlag(options::OPT_fcoroutines_ts, options::OPT_fno_coroutines_ts, + false) && + types::isCXX(InputType)) { + CmdArgs.push_back("-fcoroutines-ts"); + } + + // -fmodules enables the use of precompiled modules (off by default). + // Users can pass -fno-cxx-modules to turn off modules support for + // C++/Objective-C++ programs. + bool HaveClangModules = false; + if (Args.hasFlag(options::OPT_fmodules, options::OPT_fno_modules, false)) { + bool AllowedInCXX = Args.hasFlag(options::OPT_fcxx_modules, + options::OPT_fno_cxx_modules, true); + if (AllowedInCXX || !types::isCXX(InputType)) { + CmdArgs.push_back("-fmodules"); + HaveClangModules = true; + } + } + + bool HaveAnyModules = HaveClangModules; + if (Args.hasArg(options::OPT_fmodules_ts)) { + CmdArgs.push_back("-fmodules-ts"); + HaveAnyModules = true; + } + + // -fmodule-maps enables implicit reading of module map files. By default, + // this is enabled if we are using Clang's flavor of precompiled modules. + if (Args.hasFlag(options::OPT_fimplicit_module_maps, + options::OPT_fno_implicit_module_maps, HaveClangModules)) { + CmdArgs.push_back("-fimplicit-module-maps"); + } + + // -fmodules-decluse checks that modules used are declared so (off by + // default). + if (Args.hasFlag(options::OPT_fmodules_decluse, + options::OPT_fno_modules_decluse, false)) { + CmdArgs.push_back("-fmodules-decluse"); + } + + // -fmodules-strict-decluse is like -fmodule-decluse, but also checks that + // all #included headers are part of modules. + if (Args.hasFlag(options::OPT_fmodules_strict_decluse, + options::OPT_fno_modules_strict_decluse, false)) { + CmdArgs.push_back("-fmodules-strict-decluse"); + } + + // -fno-implicit-modules turns off implicitly compiling modules on demand. + if (!Args.hasFlag(options::OPT_fimplicit_modules, + options::OPT_fno_implicit_modules, HaveClangModules)) { + if (HaveAnyModules) + CmdArgs.push_back("-fno-implicit-modules"); + } else if (HaveAnyModules) { + // -fmodule-cache-path specifies where our implicitly-built module files + // should be written. + SmallString<128> Path; + if (Arg *A = Args.getLastArg(options::OPT_fmodules_cache_path)) + Path = A->getValue(); + if (C.isForDiagnostics()) { + // When generating crash reports, we want to emit the modules along with + // the reproduction sources, so we ignore any provided module path. + Path = Output.getFilename(); + llvm::sys::path::replace_extension(Path, ".cache"); + llvm::sys::path::append(Path, "modules"); + } else if (Path.empty()) { + // No module path was provided: use the default. + llvm::sys::path::system_temp_directory(/*erasedOnReboot=*/false, Path); + llvm::sys::path::append(Path, "org.llvm.clang."); + appendUserToPath(Path); + llvm::sys::path::append(Path, "ModuleCache"); + } + const char Arg[] = "-fmodules-cache-path="; + Path.insert(Path.begin(), Arg, Arg + strlen(Arg)); + CmdArgs.push_back(Args.MakeArgString(Path)); + } + + if (HaveAnyModules) { + // -fprebuilt-module-path specifies where to load the prebuilt module files. + for (const Arg *A : Args.filtered(options::OPT_fprebuilt_module_path)) + CmdArgs.push_back(Args.MakeArgString( + std::string("-fprebuilt-module-path=") + A->getValue())); + } + + // -fmodule-name specifies the module that is currently being built (or + // used for header checking by -fmodule-maps). + Args.AddLastArg(CmdArgs, options::OPT_fmodule_name_EQ); + + // -fmodule-map-file can be used to specify files containing module + // definitions. + Args.AddAllArgs(CmdArgs, options::OPT_fmodule_map_file); + + // -fbuiltin-module-map can be used to load the clang + // builtin headers modulemap file. + if (Args.hasArg(options::OPT_fbuiltin_module_map)) { + SmallString<128> BuiltinModuleMap(getToolChain().getDriver().ResourceDir); + llvm::sys::path::append(BuiltinModuleMap, "include"); + llvm::sys::path::append(BuiltinModuleMap, "module.modulemap"); + if (llvm::sys::fs::exists(BuiltinModuleMap)) { + CmdArgs.push_back(Args.MakeArgString("-fmodule-map-file=" + + BuiltinModuleMap)); + } + } + + // -fmodule-file can be used to specify files containing precompiled modules. + if (HaveAnyModules) + Args.AddAllArgs(CmdArgs, options::OPT_fmodule_file); + else + Args.ClaimAllArgs(options::OPT_fmodule_file); + + // When building modules and generating crashdumps, we need to dump a module + // dependency VFS alongside the output. + if (HaveClangModules && C.isForDiagnostics()) { + SmallString<128> VFSDir(Output.getFilename()); + llvm::sys::path::replace_extension(VFSDir, ".cache"); + // Add the cache directory as a temp so the crash diagnostics pick it up. + C.addTempFile(Args.MakeArgString(VFSDir)); + + llvm::sys::path::append(VFSDir, "vfs"); + CmdArgs.push_back("-module-dependency-dir"); + CmdArgs.push_back(Args.MakeArgString(VFSDir)); + } + + if (HaveClangModules) + Args.AddLastArg(CmdArgs, options::OPT_fmodules_user_build_path); + + // Pass through all -fmodules-ignore-macro arguments. + Args.AddAllArgs(CmdArgs, options::OPT_fmodules_ignore_macro); + Args.AddLastArg(CmdArgs, options::OPT_fmodules_prune_interval); + Args.AddLastArg(CmdArgs, options::OPT_fmodules_prune_after); + + Args.AddLastArg(CmdArgs, options::OPT_fbuild_session_timestamp); + + if (Arg *A = Args.getLastArg(options::OPT_fbuild_session_file)) { + if (Args.hasArg(options::OPT_fbuild_session_timestamp)) + D.Diag(diag::err_drv_argument_not_allowed_with) + << A->getAsString(Args) << "-fbuild-session-timestamp"; + + llvm::sys::fs::file_status Status; + if (llvm::sys::fs::status(A->getValue(), Status)) + D.Diag(diag::err_drv_no_such_file) << A->getValue(); + CmdArgs.push_back( + Args.MakeArgString("-fbuild-session-timestamp=" + + Twine((uint64_t)Status.getLastModificationTime() + .time_since_epoch() + .count()))); + } + + if (Args.getLastArg(options::OPT_fmodules_validate_once_per_build_session)) { + if (!Args.getLastArg(options::OPT_fbuild_session_timestamp, + options::OPT_fbuild_session_file)) + D.Diag(diag::err_drv_modules_validate_once_requires_timestamp); + + Args.AddLastArg(CmdArgs, + options::OPT_fmodules_validate_once_per_build_session); + } + + Args.AddLastArg(CmdArgs, options::OPT_fmodules_validate_system_headers); + Args.AddLastArg(CmdArgs, options::OPT_fmodules_disable_diagnostic_validation); + + // -faccess-control is default. + if (Args.hasFlag(options::OPT_fno_access_control, + options::OPT_faccess_control, false)) + CmdArgs.push_back("-fno-access-control"); + + // -felide-constructors is the default. + if (Args.hasFlag(options::OPT_fno_elide_constructors, + options::OPT_felide_constructors, false)) + CmdArgs.push_back("-fno-elide-constructors"); + + ToolChain::RTTIMode RTTIMode = getToolChain().getRTTIMode(); + + if (KernelOrKext || (types::isCXX(InputType) && + (RTTIMode == ToolChain::RM_DisabledExplicitly || + RTTIMode == ToolChain::RM_DisabledImplicitly))) + CmdArgs.push_back("-fno-rtti"); + + // -fshort-enums=0 is default for all architectures except Hexagon. + if (Args.hasFlag(options::OPT_fshort_enums, options::OPT_fno_short_enums, + getToolChain().getArch() == llvm::Triple::hexagon)) + CmdArgs.push_back("-fshort-enums"); + + // -fsigned-char is default. + if (Arg *A = Args.getLastArg( + options::OPT_fsigned_char, options::OPT_fno_signed_char, + options::OPT_funsigned_char, options::OPT_fno_unsigned_char)) { + if (A->getOption().matches(options::OPT_funsigned_char) || + A->getOption().matches(options::OPT_fno_signed_char)) { + CmdArgs.push_back("-fno-signed-char"); + } + } else if (!isSignedCharDefault(getToolChain().getTriple())) { + CmdArgs.push_back("-fno-signed-char"); + } + + // -fuse-cxa-atexit is default. + if (!Args.hasFlag( + options::OPT_fuse_cxa_atexit, options::OPT_fno_use_cxa_atexit, + !IsWindowsCygnus && !IsWindowsGNU && + getToolChain().getTriple().getOS() != llvm::Triple::Solaris && + getToolChain().getArch() != llvm::Triple::hexagon && + getToolChain().getArch() != llvm::Triple::xcore && + ((getToolChain().getTriple().getVendor() != + llvm::Triple::MipsTechnologies) || + getToolChain().getTriple().hasEnvironment())) || + KernelOrKext) + CmdArgs.push_back("-fno-use-cxa-atexit"); + + // -fms-extensions=0 is default. + if (Args.hasFlag(options::OPT_fms_extensions, options::OPT_fno_ms_extensions, + IsWindowsMSVC)) + CmdArgs.push_back("-fms-extensions"); + + // -fno-use-line-directives is default. + if (Args.hasFlag(options::OPT_fuse_line_directives, + options::OPT_fno_use_line_directives, false)) + CmdArgs.push_back("-fuse-line-directives"); + + // -fms-compatibility=0 is default. + if (Args.hasFlag(options::OPT_fms_compatibility, + options::OPT_fno_ms_compatibility, + (IsWindowsMSVC && + Args.hasFlag(options::OPT_fms_extensions, + options::OPT_fno_ms_extensions, true)))) + CmdArgs.push_back("-fms-compatibility"); + + VersionTuple MSVT = + getToolChain().computeMSVCVersion(&getToolChain().getDriver(), Args); + if (!MSVT.empty()) + CmdArgs.push_back( + Args.MakeArgString("-fms-compatibility-version=" + MSVT.getAsString())); + + bool IsMSVC2015Compatible = MSVT.getMajor() >= 19; + if (ImplyVCPPCXXVer) { + StringRef LanguageStandard; + if (const Arg *StdArg = Args.getLastArg(options::OPT__SLASH_std)) { + LanguageStandard = llvm::StringSwitch<StringRef>(StdArg->getValue()) + .Case("c++14", "-std=c++14") + .Case("c++latest", "-std=c++1z") + .Default(""); + if (LanguageStandard.empty()) + D.Diag(clang::diag::warn_drv_unused_argument) + << StdArg->getAsString(Args); + } + + if (LanguageStandard.empty()) { + if (IsMSVC2015Compatible) + LanguageStandard = "-std=c++14"; + else + LanguageStandard = "-std=c++11"; + } + + CmdArgs.push_back(LanguageStandard.data()); + } + + // -fno-borland-extensions is default. + if (Args.hasFlag(options::OPT_fborland_extensions, + options::OPT_fno_borland_extensions, false)) + CmdArgs.push_back("-fborland-extensions"); + + // -fno-declspec is default, except for PS4. + if (Args.hasFlag(options::OPT_fdeclspec, options::OPT_fno_declspec, + getToolChain().getTriple().isPS4())) + CmdArgs.push_back("-fdeclspec"); + else if (Args.hasArg(options::OPT_fno_declspec)) + CmdArgs.push_back("-fno-declspec"); // Explicitly disabling __declspec. + + // -fthreadsafe-static is default, except for MSVC compatibility versions less + // than 19. + if (!Args.hasFlag(options::OPT_fthreadsafe_statics, + options::OPT_fno_threadsafe_statics, + !IsWindowsMSVC || IsMSVC2015Compatible)) + CmdArgs.push_back("-fno-threadsafe-statics"); + + // -fno-delayed-template-parsing is default, except for Windows where MSVC STL + // needs it. + if (Args.hasFlag(options::OPT_fdelayed_template_parsing, + options::OPT_fno_delayed_template_parsing, IsWindowsMSVC)) + CmdArgs.push_back("-fdelayed-template-parsing"); + + // -fgnu-keywords default varies depending on language; only pass if + // specified. + if (Arg *A = Args.getLastArg(options::OPT_fgnu_keywords, + options::OPT_fno_gnu_keywords)) + A->render(Args, CmdArgs); + + if (Args.hasFlag(options::OPT_fgnu89_inline, options::OPT_fno_gnu89_inline, + false)) + CmdArgs.push_back("-fgnu89-inline"); + + if (Args.hasArg(options::OPT_fno_inline)) + CmdArgs.push_back("-fno-inline"); + + if (Arg* InlineArg = Args.getLastArg(options::OPT_finline_functions, + options::OPT_finline_hint_functions, + options::OPT_fno_inline_functions)) + InlineArg->render(Args, CmdArgs); + + Args.AddLastArg(CmdArgs, options::OPT_fexperimental_new_pass_manager, + options::OPT_fno_experimental_new_pass_manager); + + ObjCRuntime objcRuntime = AddObjCRuntimeArgs(Args, CmdArgs, rewriteKind); + + // -fobjc-dispatch-method is only relevant with the nonfragile-abi, and + // legacy is the default. Except for deployment target of 10.5, + // next runtime is always legacy dispatch and -fno-objc-legacy-dispatch + // gets ignored silently. + if (objcRuntime.isNonFragile()) { + if (!Args.hasFlag(options::OPT_fobjc_legacy_dispatch, + options::OPT_fno_objc_legacy_dispatch, + objcRuntime.isLegacyDispatchDefaultForArch( + getToolChain().getArch()))) { + if (getToolChain().UseObjCMixedDispatch()) + CmdArgs.push_back("-fobjc-dispatch-method=mixed"); + else + CmdArgs.push_back("-fobjc-dispatch-method=non-legacy"); + } + } + + // When ObjectiveC legacy runtime is in effect on MacOSX, + // turn on the option to do Array/Dictionary subscripting + // by default. + if (getToolChain().getArch() == llvm::Triple::x86 && + getToolChain().getTriple().isMacOSX() && + !getToolChain().getTriple().isMacOSXVersionLT(10, 7) && + objcRuntime.getKind() == ObjCRuntime::FragileMacOSX && + objcRuntime.isNeXTFamily()) + CmdArgs.push_back("-fobjc-subscripting-legacy-runtime"); + + // -fencode-extended-block-signature=1 is default. + if (getToolChain().IsEncodeExtendedBlockSignatureDefault()) { + CmdArgs.push_back("-fencode-extended-block-signature"); + } + + // Allow -fno-objc-arr to trump -fobjc-arr/-fobjc-arc. + // NOTE: This logic is duplicated in ToolChains.cpp. + bool ARC = isObjCAutoRefCount(Args); + if (ARC) { + getToolChain().CheckObjCARC(); + + CmdArgs.push_back("-fobjc-arc"); + + // FIXME: It seems like this entire block, and several around it should be + // wrapped in isObjC, but for now we just use it here as this is where it + // was being used previously. + if (types::isCXX(InputType) && types::isObjC(InputType)) { + if (getToolChain().GetCXXStdlibType(Args) == ToolChain::CST_Libcxx) + CmdArgs.push_back("-fobjc-arc-cxxlib=libc++"); + else + CmdArgs.push_back("-fobjc-arc-cxxlib=libstdc++"); + } + + // Allow the user to enable full exceptions code emission. + // We define off for Objective-CC, on for Objective-C++. + if (Args.hasFlag(options::OPT_fobjc_arc_exceptions, + options::OPT_fno_objc_arc_exceptions, + /*default*/ types::isCXX(InputType))) + CmdArgs.push_back("-fobjc-arc-exceptions"); + } + + // Silence warning for full exception code emission options when explicitly + // set to use no ARC. + if (Args.hasArg(options::OPT_fno_objc_arc)) { + Args.ClaimAllArgs(options::OPT_fobjc_arc_exceptions); + Args.ClaimAllArgs(options::OPT_fno_objc_arc_exceptions); + } + + // -fobjc-infer-related-result-type is the default, except in the Objective-C + // rewriter. + if (rewriteKind != RK_None) + CmdArgs.push_back("-fno-objc-infer-related-result-type"); + + // Pass down -fobjc-weak or -fno-objc-weak if present. + if (types::isObjC(InputType)) { + auto WeakArg = Args.getLastArg(options::OPT_fobjc_weak, + options::OPT_fno_objc_weak); + if (!WeakArg) { + // nothing to do + } else if (!objcRuntime.allowsWeak()) { + if (WeakArg->getOption().matches(options::OPT_fobjc_weak)) + D.Diag(diag::err_objc_weak_unsupported); + } else { + WeakArg->render(Args, CmdArgs); + } + } + + if (Args.hasFlag(options::OPT_fapplication_extension, + options::OPT_fno_application_extension, false)) + CmdArgs.push_back("-fapplication-extension"); + + // Handle GCC-style exception args. + if (!C.getDriver().IsCLMode()) + addExceptionArgs(Args, InputType, getToolChain(), KernelOrKext, objcRuntime, + CmdArgs); + + if (Args.hasArg(options::OPT_fsjlj_exceptions) || + getToolChain().UseSjLjExceptions(Args)) + CmdArgs.push_back("-fsjlj-exceptions"); + + // C++ "sane" operator new. + if (!Args.hasFlag(options::OPT_fassume_sane_operator_new, + options::OPT_fno_assume_sane_operator_new)) + CmdArgs.push_back("-fno-assume-sane-operator-new"); + + // -frelaxed-template-template-args is off by default, as it is a severe + // breaking change until a corresponding change to template partial ordering + // is provided. + if (Args.hasFlag(options::OPT_frelaxed_template_template_args, + options::OPT_fno_relaxed_template_template_args, false)) + CmdArgs.push_back("-frelaxed-template-template-args"); + + // -fsized-deallocation is off by default, as it is an ABI-breaking change for + // most platforms. + if (Args.hasFlag(options::OPT_fsized_deallocation, + options::OPT_fno_sized_deallocation, false)) + CmdArgs.push_back("-fsized-deallocation"); + + // -faligned-allocation is on by default in C++17 onwards and otherwise off + // by default. + if (Arg *A = Args.getLastArg(options::OPT_faligned_allocation, + options::OPT_fno_aligned_allocation, + options::OPT_faligned_new_EQ)) { + if (A->getOption().matches(options::OPT_fno_aligned_allocation)) + CmdArgs.push_back("-fno-aligned-allocation"); + else + CmdArgs.push_back("-faligned-allocation"); + } + + // The default new alignment can be specified using a dedicated option or via + // a GCC-compatible option that also turns on aligned allocation. + if (Arg *A = Args.getLastArg(options::OPT_fnew_alignment_EQ, + options::OPT_faligned_new_EQ)) + CmdArgs.push_back( + Args.MakeArgString(Twine("-fnew-alignment=") + A->getValue())); + + // -fconstant-cfstrings is default, and may be subject to argument translation + // on Darwin. + if (!Args.hasFlag(options::OPT_fconstant_cfstrings, + options::OPT_fno_constant_cfstrings) || + !Args.hasFlag(options::OPT_mconstant_cfstrings, + options::OPT_mno_constant_cfstrings)) + CmdArgs.push_back("-fno-constant-cfstrings"); + + // -fshort-wchar default varies depending on platform; only + // pass if specified. + if (Arg *A = Args.getLastArg(options::OPT_fshort_wchar, + options::OPT_fno_short_wchar)) + A->render(Args, CmdArgs); + + // -fno-pascal-strings is default, only pass non-default. + if (Args.hasFlag(options::OPT_fpascal_strings, + options::OPT_fno_pascal_strings, false)) + CmdArgs.push_back("-fpascal-strings"); + + // Honor -fpack-struct= and -fpack-struct, if given. Note that + // -fno-pack-struct doesn't apply to -fpack-struct=. + if (Arg *A = Args.getLastArg(options::OPT_fpack_struct_EQ)) { + std::string PackStructStr = "-fpack-struct="; + PackStructStr += A->getValue(); + CmdArgs.push_back(Args.MakeArgString(PackStructStr)); + } else if (Args.hasFlag(options::OPT_fpack_struct, + options::OPT_fno_pack_struct, false)) { + CmdArgs.push_back("-fpack-struct=1"); + } + + // Handle -fmax-type-align=N and -fno-type-align + bool SkipMaxTypeAlign = Args.hasArg(options::OPT_fno_max_type_align); + if (Arg *A = Args.getLastArg(options::OPT_fmax_type_align_EQ)) { + if (!SkipMaxTypeAlign) { + std::string MaxTypeAlignStr = "-fmax-type-align="; + MaxTypeAlignStr += A->getValue(); + CmdArgs.push_back(Args.MakeArgString(MaxTypeAlignStr)); + } + } else if (getToolChain().getTriple().isOSDarwin()) { + if (!SkipMaxTypeAlign) { + std::string MaxTypeAlignStr = "-fmax-type-align=16"; + CmdArgs.push_back(Args.MakeArgString(MaxTypeAlignStr)); + } + } + + // -fcommon is the default unless compiling kernel code or the target says so + bool NoCommonDefault = + KernelOrKext || isNoCommonDefault(getToolChain().getTriple()); + if (!Args.hasFlag(options::OPT_fcommon, options::OPT_fno_common, + !NoCommonDefault)) + CmdArgs.push_back("-fno-common"); + + // -fsigned-bitfields is default, and clang doesn't yet support + // -funsigned-bitfields. + if (!Args.hasFlag(options::OPT_fsigned_bitfields, + options::OPT_funsigned_bitfields)) + D.Diag(diag::warn_drv_clang_unsupported) + << Args.getLastArg(options::OPT_funsigned_bitfields)->getAsString(Args); + + // -fsigned-bitfields is default, and clang doesn't support -fno-for-scope. + if (!Args.hasFlag(options::OPT_ffor_scope, options::OPT_fno_for_scope)) + D.Diag(diag::err_drv_clang_unsupported) + << Args.getLastArg(options::OPT_fno_for_scope)->getAsString(Args); + + // -finput_charset=UTF-8 is default. Reject others + if (Arg *inputCharset = Args.getLastArg(options::OPT_finput_charset_EQ)) { + StringRef value = inputCharset->getValue(); + if (!value.equals_lower("utf-8")) + D.Diag(diag::err_drv_invalid_value) << inputCharset->getAsString(Args) + << value; + } + + // -fexec_charset=UTF-8 is default. Reject others + if (Arg *execCharset = Args.getLastArg(options::OPT_fexec_charset_EQ)) { + StringRef value = execCharset->getValue(); + if (!value.equals_lower("utf-8")) + D.Diag(diag::err_drv_invalid_value) << execCharset->getAsString(Args) + << value; + } + + bool CaretDefault = true; + bool ColumnDefault = true; + if (Arg *DiagArg = Args.getLastArg(options::OPT__SLASH_diagnostics_classic, + options::OPT__SLASH_diagnostics_column, + options::OPT__SLASH_diagnostics_caret)) { + switch (DiagArg->getOption().getID()) { + case options::OPT__SLASH_diagnostics_caret: + CaretDefault = true; + ColumnDefault = true; + break; + case options::OPT__SLASH_diagnostics_column: + CaretDefault = false; + ColumnDefault = true; + break; + case options::OPT__SLASH_diagnostics_classic: + CaretDefault = false; + ColumnDefault = false; + break; + } + } + + // -fcaret-diagnostics is default. + if (!Args.hasFlag(options::OPT_fcaret_diagnostics, + options::OPT_fno_caret_diagnostics, CaretDefault)) + CmdArgs.push_back("-fno-caret-diagnostics"); + + // -fdiagnostics-fixit-info is default, only pass non-default. + if (!Args.hasFlag(options::OPT_fdiagnostics_fixit_info, + options::OPT_fno_diagnostics_fixit_info)) + CmdArgs.push_back("-fno-diagnostics-fixit-info"); + + // Enable -fdiagnostics-show-option by default. + if (Args.hasFlag(options::OPT_fdiagnostics_show_option, + options::OPT_fno_diagnostics_show_option)) + CmdArgs.push_back("-fdiagnostics-show-option"); + + if (const Arg *A = + Args.getLastArg(options::OPT_fdiagnostics_show_category_EQ)) { + CmdArgs.push_back("-fdiagnostics-show-category"); + CmdArgs.push_back(A->getValue()); + } + + if (Args.hasFlag(options::OPT_fdiagnostics_show_hotness, + options::OPT_fno_diagnostics_show_hotness, false)) + CmdArgs.push_back("-fdiagnostics-show-hotness"); + + if (const Arg *A = + Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { + std::string Opt = std::string("-fdiagnostics-hotness-threshold=") + A->getValue(); + CmdArgs.push_back(Args.MakeArgString(Opt)); + } + + if (const Arg *A = Args.getLastArg(options::OPT_fdiagnostics_format_EQ)) { + CmdArgs.push_back("-fdiagnostics-format"); + CmdArgs.push_back(A->getValue()); + } + + if (Arg *A = Args.getLastArg( + options::OPT_fdiagnostics_show_note_include_stack, + options::OPT_fno_diagnostics_show_note_include_stack)) { + if (A->getOption().matches( + options::OPT_fdiagnostics_show_note_include_stack)) + CmdArgs.push_back("-fdiagnostics-show-note-include-stack"); + else + CmdArgs.push_back("-fno-diagnostics-show-note-include-stack"); + } + + // Color diagnostics are parsed by the driver directly from argv + // and later re-parsed to construct this job; claim any possible + // color diagnostic here to avoid warn_drv_unused_argument and + // diagnose bad OPT_fdiagnostics_color_EQ values. + for (Arg *A : Args) { + const Option &O = A->getOption(); + if (!O.matches(options::OPT_fcolor_diagnostics) && + !O.matches(options::OPT_fdiagnostics_color) && + !O.matches(options::OPT_fno_color_diagnostics) && + !O.matches(options::OPT_fno_diagnostics_color) && + !O.matches(options::OPT_fdiagnostics_color_EQ)) + continue; + if (O.matches(options::OPT_fdiagnostics_color_EQ)) { + StringRef Value(A->getValue()); + if (Value != "always" && Value != "never" && Value != "auto") + getToolChain().getDriver().Diag(diag::err_drv_clang_unsupported) + << ("-fdiagnostics-color=" + Value).str(); + } + A->claim(); + } + if (D.getDiags().getDiagnosticOptions().ShowColors) + CmdArgs.push_back("-fcolor-diagnostics"); + + if (Args.hasArg(options::OPT_fansi_escape_codes)) + CmdArgs.push_back("-fansi-escape-codes"); + + if (!Args.hasFlag(options::OPT_fshow_source_location, + options::OPT_fno_show_source_location)) + CmdArgs.push_back("-fno-show-source-location"); + + if (Args.hasArg(options::OPT_fdiagnostics_absolute_paths)) + CmdArgs.push_back("-fdiagnostics-absolute-paths"); + + if (!Args.hasFlag(options::OPT_fshow_column, options::OPT_fno_show_column, + ColumnDefault)) + CmdArgs.push_back("-fno-show-column"); + + if (!Args.hasFlag(options::OPT_fspell_checking, + options::OPT_fno_spell_checking)) + CmdArgs.push_back("-fno-spell-checking"); + + // -fno-asm-blocks is default. + if (Args.hasFlag(options::OPT_fasm_blocks, options::OPT_fno_asm_blocks, + false)) + CmdArgs.push_back("-fasm-blocks"); + + // -fgnu-inline-asm is default. + if (!Args.hasFlag(options::OPT_fgnu_inline_asm, + options::OPT_fno_gnu_inline_asm, true)) + CmdArgs.push_back("-fno-gnu-inline-asm"); + + // Enable vectorization per default according to the optimization level + // selected. For optimization levels that want vectorization we use the alias + // option to simplify the hasFlag logic. + bool EnableVec = shouldEnableVectorizerAtOLevel(Args, false); + OptSpecifier VectorizeAliasOption = + EnableVec ? options::OPT_O_Group : options::OPT_fvectorize; + if (Args.hasFlag(options::OPT_fvectorize, VectorizeAliasOption, + options::OPT_fno_vectorize, EnableVec)) + CmdArgs.push_back("-vectorize-loops"); + + // -fslp-vectorize is enabled based on the optimization level selected. + bool EnableSLPVec = shouldEnableVectorizerAtOLevel(Args, true); + OptSpecifier SLPVectAliasOption = + EnableSLPVec ? options::OPT_O_Group : options::OPT_fslp_vectorize; + if (Args.hasFlag(options::OPT_fslp_vectorize, SLPVectAliasOption, + options::OPT_fno_slp_vectorize, EnableSLPVec)) + CmdArgs.push_back("-vectorize-slp"); + + if (Arg *A = Args.getLastArg(options::OPT_fshow_overloads_EQ)) + A->render(Args, CmdArgs); + + if (Arg *A = Args.getLastArg( + options::OPT_fsanitize_undefined_strip_path_components_EQ)) + A->render(Args, CmdArgs); + + // -fdollars-in-identifiers default varies depending on platform and + // language; only pass if specified. + if (Arg *A = Args.getLastArg(options::OPT_fdollars_in_identifiers, + options::OPT_fno_dollars_in_identifiers)) { + if (A->getOption().matches(options::OPT_fdollars_in_identifiers)) + CmdArgs.push_back("-fdollars-in-identifiers"); + else + CmdArgs.push_back("-fno-dollars-in-identifiers"); + } + + // -funit-at-a-time is default, and we don't support -fno-unit-at-a-time for + // practical purposes. + if (Arg *A = Args.getLastArg(options::OPT_funit_at_a_time, + options::OPT_fno_unit_at_a_time)) { + if (A->getOption().matches(options::OPT_fno_unit_at_a_time)) + D.Diag(diag::warn_drv_clang_unsupported) << A->getAsString(Args); + } + + if (Args.hasFlag(options::OPT_fapple_pragma_pack, + options::OPT_fno_apple_pragma_pack, false)) + CmdArgs.push_back("-fapple-pragma-pack"); + + // le32-specific flags: + // -fno-math-builtin: clang should not convert math builtins to intrinsics + // by default. + if (getToolChain().getArch() == llvm::Triple::le32) { + CmdArgs.push_back("-fno-math-builtin"); + } + + if (Args.hasFlag(options::OPT_fsave_optimization_record, + options::OPT_fno_save_optimization_record, false)) { + CmdArgs.push_back("-opt-record-file"); + + const Arg *A = Args.getLastArg(options::OPT_foptimization_record_file_EQ); + if (A) { + CmdArgs.push_back(A->getValue()); + } else { + SmallString<128> F; + if (Output.isFilename() && (Args.hasArg(options::OPT_c) || + Args.hasArg(options::OPT_S))) { + F = Output.getFilename(); + } else { + // Use the input filename. + F = llvm::sys::path::stem(Input.getBaseInput()); + + // If we're compiling for an offload architecture (i.e. a CUDA device), + // we need to make the file name for the device compilation different + // from the host compilation. + if (!JA.isDeviceOffloading(Action::OFK_None) && + !JA.isDeviceOffloading(Action::OFK_Host)) { + llvm::sys::path::replace_extension(F, ""); + F += Action::GetOffloadingFileNamePrefix(JA.getOffloadingDeviceKind(), + Triple.normalize()); + F += "-"; + F += JA.getOffloadingArch(); + } + } + + llvm::sys::path::replace_extension(F, "opt.yaml"); + CmdArgs.push_back(Args.MakeArgString(F)); + } + } + +// Default to -fno-builtin-str{cat,cpy} on Darwin for ARM. +// +// FIXME: Now that PR4941 has been fixed this can be enabled. +#if 0 + if (getToolChain().getTriple().isOSDarwin() && + (getToolChain().getArch() == llvm::Triple::arm || + getToolChain().getArch() == llvm::Triple::thumb)) { + if (!Args.hasArg(options::OPT_fbuiltin_strcat)) + CmdArgs.push_back("-fno-builtin-strcat"); + if (!Args.hasArg(options::OPT_fbuiltin_strcpy)) + CmdArgs.push_back("-fno-builtin-strcpy"); + } +#endif + + bool RewriteImports = Args.hasFlag(options::OPT_frewrite_imports, + options::OPT_fno_rewrite_imports, false); + if (RewriteImports) + CmdArgs.push_back("-frewrite-imports"); + + // Enable rewrite includes if the user's asked for it or if we're generating + // diagnostics. + // TODO: Once -module-dependency-dir works with -frewrite-includes it'd be + // nice to enable this when doing a crashdump for modules as well. + if (Args.hasFlag(options::OPT_frewrite_includes, + options::OPT_fno_rewrite_includes, false) || + (C.isForDiagnostics() && (RewriteImports || !HaveAnyModules))) + CmdArgs.push_back("-frewrite-includes"); + + // Only allow -traditional or -traditional-cpp outside in preprocessing modes. + if (Arg *A = Args.getLastArg(options::OPT_traditional, + options::OPT_traditional_cpp)) { + if (isa<PreprocessJobAction>(JA)) + CmdArgs.push_back("-traditional-cpp"); + else + D.Diag(diag::err_drv_clang_unsupported) << A->getAsString(Args); + } + + Args.AddLastArg(CmdArgs, options::OPT_dM); + Args.AddLastArg(CmdArgs, options::OPT_dD); + + // Handle serialized diagnostics. + if (Arg *A = Args.getLastArg(options::OPT__serialize_diags)) { + CmdArgs.push_back("-serialize-diagnostic-file"); + CmdArgs.push_back(Args.MakeArgString(A->getValue())); + } + + if (Args.hasArg(options::OPT_fretain_comments_from_system_headers)) + CmdArgs.push_back("-fretain-comments-from-system-headers"); + + // Forward -fcomment-block-commands to -cc1. + Args.AddAllArgs(CmdArgs, options::OPT_fcomment_block_commands); + // Forward -fparse-all-comments to -cc1. + Args.AddAllArgs(CmdArgs, options::OPT_fparse_all_comments); + + // Turn -fplugin=name.so into -load name.so + for (const Arg *A : Args.filtered(options::OPT_fplugin_EQ)) { + CmdArgs.push_back("-load"); + CmdArgs.push_back(A->getValue()); + A->claim(); + } + + // Setup statistics file output. + if (const Arg *A = Args.getLastArg(options::OPT_save_stats_EQ)) { + StringRef SaveStats = A->getValue(); + + SmallString<128> StatsFile; + bool DoSaveStats = false; + if (SaveStats == "obj") { + if (Output.isFilename()) { + StatsFile.assign(Output.getFilename()); + llvm::sys::path::remove_filename(StatsFile); + } + DoSaveStats = true; + } else if (SaveStats == "cwd") { + DoSaveStats = true; + } else { + D.Diag(diag::err_drv_invalid_value) << A->getAsString(Args) << SaveStats; + } + + if (DoSaveStats) { + StringRef BaseName = llvm::sys::path::filename(Input.getBaseInput()); + llvm::sys::path::append(StatsFile, BaseName); + llvm::sys::path::replace_extension(StatsFile, "stats"); + CmdArgs.push_back(Args.MakeArgString(Twine("-stats-file=") + + StatsFile)); + } + } + + // Forward -Xclang arguments to -cc1, and -mllvm arguments to the LLVM option + // parser. + // -finclude-default-header flag is for preprocessor, + // do not pass it to other cc1 commands when save-temps is enabled + if (C.getDriver().isSaveTempsEnabled() && + !isa<PreprocessJobAction>(JA)) { + for (auto Arg : Args.filtered(options::OPT_Xclang)) { + Arg->claim(); + if (StringRef(Arg->getValue()) != "-finclude-default-header") + CmdArgs.push_back(Arg->getValue()); + } + } + else { + Args.AddAllArgValues(CmdArgs, options::OPT_Xclang); + } + for (const Arg *A : Args.filtered(options::OPT_mllvm)) { + A->claim(); + + // We translate this by hand to the -cc1 argument, since nightly test uses + // it and developers have been trained to spell it with -mllvm. Both + // spellings are now deprecated and should be removed. + if (StringRef(A->getValue(0)) == "-disable-llvm-optzns") { + CmdArgs.push_back("-disable-llvm-optzns"); + } else { + A->render(Args, CmdArgs); + } + } + + // With -save-temps, we want to save the unoptimized bitcode output from the + // CompileJobAction, use -disable-llvm-passes to get pristine IR generated + // by the frontend. + // When -fembed-bitcode is enabled, optimized bitcode is emitted because it + // has slightly different breakdown between stages. + // FIXME: -fembed-bitcode -save-temps will save optimized bitcode instead of + // pristine IR generated by the frontend. Ideally, a new compile action should + // be added so both IR can be captured. + if (C.getDriver().isSaveTempsEnabled() && + !(C.getDriver().embedBitcodeInObject() && !C.getDriver().isUsingLTO()) && + isa<CompileJobAction>(JA)) + CmdArgs.push_back("-disable-llvm-passes"); + + if (Output.getType() == types::TY_Dependencies) { + // Handled with other dependency code. + } else if (Output.isFilename()) { + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + } else { + assert(Output.isNothing() && "Invalid output."); + } + + addDashXForInput(Args, Input, CmdArgs); + + if (Input.isFilename()) + CmdArgs.push_back(Input.getFilename()); + else + Input.getInputArg().renderAsInput(Args, CmdArgs); + + Args.AddAllArgs(CmdArgs, options::OPT_undef); + + const char *Exec = getToolChain().getDriver().getClangProgramPath(); + + // Optionally embed the -cc1 level arguments into the debug info, for build + // analysis. + // Also record command line arguments into the debug info if + // -grecord-gcc-switches options is set on. + // By default, -gno-record-gcc-switches is set on and no recording. + if (getToolChain().UseDwarfDebugFlags() || + Args.hasFlag(options::OPT_grecord_gcc_switches, + options::OPT_gno_record_gcc_switches, false)) { + ArgStringList OriginalArgs; + for (const auto &Arg : Args) + Arg->render(Args, OriginalArgs); + + SmallString<256> Flags; + Flags += Exec; + for (const char *OriginalArg : OriginalArgs) { + SmallString<128> EscapedArg; + EscapeSpacesAndBackslashes(OriginalArg, EscapedArg); + Flags += " "; + Flags += EscapedArg; + } + CmdArgs.push_back("-dwarf-debug-flags"); + CmdArgs.push_back(Args.MakeArgString(Flags)); + } + + // Add the split debug info name to the command lines here so we + // can propagate it to the backend. + bool SplitDwarf = SplitDwarfArg && getToolChain().getTriple().isOSLinux() && + (isa<AssembleJobAction>(JA) || isa<CompileJobAction>(JA) || + isa<BackendJobAction>(JA)); + const char *SplitDwarfOut; + if (SplitDwarf) { + CmdArgs.push_back("-split-dwarf-file"); + SplitDwarfOut = SplitDebugName(Args, Input); + CmdArgs.push_back(SplitDwarfOut); + } + + // Host-side cuda compilation receives device-side outputs as Inputs[1...]. + // Include them with -fcuda-include-gpubinary. + if (IsCuda && Inputs.size() > 1) + for (auto I = std::next(Inputs.begin()), E = Inputs.end(); I != E; ++I) { + CmdArgs.push_back("-fcuda-include-gpubinary"); + CmdArgs.push_back(I->getFilename()); + } + + // OpenMP offloading device jobs take the argument -fopenmp-host-ir-file-path + // to specify the result of the compile phase on the host, so the meaningful + // device declarations can be identified. Also, -fopenmp-is-device is passed + // along to tell the frontend that it is generating code for a device, so that + // only the relevant declarations are emitted. + if (IsOpenMPDevice) { + CmdArgs.push_back("-fopenmp-is-device"); + if (Inputs.size() == 2) { + CmdArgs.push_back("-fopenmp-host-ir-file-path"); + CmdArgs.push_back(Args.MakeArgString(Inputs.back().getFilename())); + } + } + + // For all the host OpenMP offloading compile jobs we need to pass the targets + // information using -fopenmp-targets= option. + if (isa<CompileJobAction>(JA) && JA.isHostOffloading(Action::OFK_OpenMP)) { + SmallString<128> TargetInfo("-fopenmp-targets="); + + Arg *Tgts = Args.getLastArg(options::OPT_fopenmp_targets_EQ); + assert(Tgts && Tgts->getNumValues() && + "OpenMP offloading has to have targets specified."); + for (unsigned i = 0; i < Tgts->getNumValues(); ++i) { + if (i) + TargetInfo += ','; + // We need to get the string from the triple because it may be not exactly + // the same as the one we get directly from the arguments. + llvm::Triple T(Tgts->getValue(i)); + TargetInfo += T.getTriple(); + } + CmdArgs.push_back(Args.MakeArgString(TargetInfo.str())); + } + + bool WholeProgramVTables = + Args.hasFlag(options::OPT_fwhole_program_vtables, + options::OPT_fno_whole_program_vtables, false); + if (WholeProgramVTables) { + if (!D.isUsingLTO()) + D.Diag(diag::err_drv_argument_only_allowed_with) + << "-fwhole-program-vtables" + << "-flto"; + CmdArgs.push_back("-fwhole-program-vtables"); + } + + // Finally add the compile command to the compilation. + if (Args.hasArg(options::OPT__SLASH_fallback) && + Output.getType() == types::TY_Object && + (InputType == types::TY_C || InputType == types::TY_CXX)) { + auto CLCommand = + getCLFallback()->GetCommand(C, JA, Output, Inputs, Args, LinkingOutput); + C.addCommand(llvm::make_unique<FallbackCommand>( + JA, *this, Exec, CmdArgs, Inputs, std::move(CLCommand))); + } else if (Args.hasArg(options::OPT__SLASH_fallback) && + isa<PrecompileJobAction>(JA)) { + // In /fallback builds, run the main compilation even if the pch generation + // fails, so that the main compilation's fallback to cl.exe runs. + C.addCommand(llvm::make_unique<ForceSuccessCommand>(JA, *this, Exec, + CmdArgs, Inputs)); + } else { + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); + } + + // Handle the debug info splitting at object creation time if we're + // creating an object. + // TODO: Currently only works on linux with newer objcopy. + if (SplitDwarf && Output.getType() == types::TY_Object) + SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output, SplitDwarfOut); + + if (Arg *A = Args.getLastArg(options::OPT_pg)) + if (Args.hasArg(options::OPT_fomit_frame_pointer)) + D.Diag(diag::err_drv_argument_not_allowed_with) << "-fomit-frame-pointer" + << A->getAsString(Args); + + // Claim some arguments which clang supports automatically. + + // -fpch-preprocess is used with gcc to add a special marker in the output to + // include the PCH file. Clang's PTH solution is completely transparent, so we + // do not need to deal with it at all. + Args.ClaimAllArgs(options::OPT_fpch_preprocess); + + // Claim some arguments which clang doesn't support, but we don't + // care to warn the user about. + Args.ClaimAllArgs(options::OPT_clang_ignored_f_Group); + Args.ClaimAllArgs(options::OPT_clang_ignored_m_Group); + + // Disable warnings for clang -E -emit-llvm foo.c + Args.ClaimAllArgs(options::OPT_emit_llvm); +} + +Clang::Clang(const ToolChain &TC) + // CAUTION! The first constructor argument ("clang") is not arbitrary, + // as it is for other tools. Some operations on a Tool actually test + // whether that tool is Clang based on the Tool's Name as a string. + : Tool("clang", "clang frontend", TC, RF_Full) {} + +Clang::~Clang() {} + +/// Add options related to the Objective-C runtime/ABI. +/// +/// Returns true if the runtime is non-fragile. +ObjCRuntime Clang::AddObjCRuntimeArgs(const ArgList &args, + ArgStringList &cmdArgs, + RewriteKind rewriteKind) const { + // Look for the controlling runtime option. + Arg *runtimeArg = + args.getLastArg(options::OPT_fnext_runtime, options::OPT_fgnu_runtime, + options::OPT_fobjc_runtime_EQ); + + // Just forward -fobjc-runtime= to the frontend. This supercedes + // options about fragility. + if (runtimeArg && + runtimeArg->getOption().matches(options::OPT_fobjc_runtime_EQ)) { + ObjCRuntime runtime; + StringRef value = runtimeArg->getValue(); + if (runtime.tryParse(value)) { + getToolChain().getDriver().Diag(diag::err_drv_unknown_objc_runtime) + << value; + } + + runtimeArg->render(args, cmdArgs); + return runtime; + } + + // Otherwise, we'll need the ABI "version". Version numbers are + // slightly confusing for historical reasons: + // 1 - Traditional "fragile" ABI + // 2 - Non-fragile ABI, version 1 + // 3 - Non-fragile ABI, version 2 + unsigned objcABIVersion = 1; + // If -fobjc-abi-version= is present, use that to set the version. + if (Arg *abiArg = args.getLastArg(options::OPT_fobjc_abi_version_EQ)) { + StringRef value = abiArg->getValue(); + if (value == "1") + objcABIVersion = 1; + else if (value == "2") + objcABIVersion = 2; + else if (value == "3") + objcABIVersion = 3; + else + getToolChain().getDriver().Diag(diag::err_drv_clang_unsupported) << value; + } else { + // Otherwise, determine if we are using the non-fragile ABI. + bool nonFragileABIIsDefault = + (rewriteKind == RK_NonFragile || + (rewriteKind == RK_None && + getToolChain().IsObjCNonFragileABIDefault())); + if (args.hasFlag(options::OPT_fobjc_nonfragile_abi, + options::OPT_fno_objc_nonfragile_abi, + nonFragileABIIsDefault)) { +// Determine the non-fragile ABI version to use. +#ifdef DISABLE_DEFAULT_NONFRAGILEABI_TWO + unsigned nonFragileABIVersion = 1; +#else + unsigned nonFragileABIVersion = 2; +#endif + + if (Arg *abiArg = + args.getLastArg(options::OPT_fobjc_nonfragile_abi_version_EQ)) { + StringRef value = abiArg->getValue(); + if (value == "1") + nonFragileABIVersion = 1; + else if (value == "2") + nonFragileABIVersion = 2; + else + getToolChain().getDriver().Diag(diag::err_drv_clang_unsupported) + << value; + } + + objcABIVersion = 1 + nonFragileABIVersion; + } else { + objcABIVersion = 1; + } + } + + // We don't actually care about the ABI version other than whether + // it's non-fragile. + bool isNonFragile = objcABIVersion != 1; + + // If we have no runtime argument, ask the toolchain for its default runtime. + // However, the rewriter only really supports the Mac runtime, so assume that. + ObjCRuntime runtime; + if (!runtimeArg) { + switch (rewriteKind) { + case RK_None: + runtime = getToolChain().getDefaultObjCRuntime(isNonFragile); + break; + case RK_Fragile: + runtime = ObjCRuntime(ObjCRuntime::FragileMacOSX, VersionTuple()); + break; + case RK_NonFragile: + runtime = ObjCRuntime(ObjCRuntime::MacOSX, VersionTuple()); + break; + } + + // -fnext-runtime + } else if (runtimeArg->getOption().matches(options::OPT_fnext_runtime)) { + // On Darwin, make this use the default behavior for the toolchain. + if (getToolChain().getTriple().isOSDarwin()) { + runtime = getToolChain().getDefaultObjCRuntime(isNonFragile); + + // Otherwise, build for a generic macosx port. + } else { + runtime = ObjCRuntime(ObjCRuntime::MacOSX, VersionTuple()); + } + + // -fgnu-runtime + } else { + assert(runtimeArg->getOption().matches(options::OPT_fgnu_runtime)); + // Legacy behaviour is to target the gnustep runtime if we are in + // non-fragile mode or the GCC runtime in fragile mode. + if (isNonFragile) + runtime = ObjCRuntime(ObjCRuntime::GNUstep, VersionTuple(1, 6)); + else + runtime = ObjCRuntime(ObjCRuntime::GCC, VersionTuple()); + } + + cmdArgs.push_back( + args.MakeArgString("-fobjc-runtime=" + runtime.getAsString())); + return runtime; +} + +static bool maybeConsumeDash(const std::string &EH, size_t &I) { + bool HaveDash = (I + 1 < EH.size() && EH[I + 1] == '-'); + I += HaveDash; + return !HaveDash; +} + +namespace { +struct EHFlags { + bool Synch = false; + bool Asynch = false; + bool NoUnwindC = false; +}; +} // end anonymous namespace + +/// /EH controls whether to run destructor cleanups when exceptions are +/// thrown. There are three modifiers: +/// - s: Cleanup after "synchronous" exceptions, aka C++ exceptions. +/// - a: Cleanup after "asynchronous" exceptions, aka structured exceptions. +/// The 'a' modifier is unimplemented and fundamentally hard in LLVM IR. +/// - c: Assume that extern "C" functions are implicitly nounwind. +/// The default is /EHs-c-, meaning cleanups are disabled. +static EHFlags parseClangCLEHFlags(const Driver &D, const ArgList &Args) { + EHFlags EH; + + std::vector<std::string> EHArgs = + Args.getAllArgValues(options::OPT__SLASH_EH); + for (auto EHVal : EHArgs) { + for (size_t I = 0, E = EHVal.size(); I != E; ++I) { + switch (EHVal[I]) { + case 'a': + EH.Asynch = maybeConsumeDash(EHVal, I); + if (EH.Asynch) + EH.Synch = false; + continue; + case 'c': + EH.NoUnwindC = maybeConsumeDash(EHVal, I); + continue; + case 's': + EH.Synch = maybeConsumeDash(EHVal, I); + if (EH.Synch) + EH.Asynch = false; + continue; + default: + break; + } + D.Diag(clang::diag::err_drv_invalid_value) << "/EH" << EHVal; + break; + } + } + // The /GX, /GX- flags are only processed if there are not /EH flags. + // The default is that /GX is not specified. + if (EHArgs.empty() && + Args.hasFlag(options::OPT__SLASH_GX, options::OPT__SLASH_GX_, + /*default=*/false)) { + EH.Synch = true; + EH.NoUnwindC = true; + } + + return EH; +} + +void Clang::AddClangCLArgs(const ArgList &Args, types::ID InputType, + ArgStringList &CmdArgs, + codegenoptions::DebugInfoKind *DebugInfoKind, + bool *EmitCodeView) const { + unsigned RTOptionID = options::OPT__SLASH_MT; + + if (Args.hasArg(options::OPT__SLASH_LDd)) + // The /LDd option implies /MTd. The dependent lib part can be overridden, + // but defining _DEBUG is sticky. + RTOptionID = options::OPT__SLASH_MTd; + + if (Arg *A = Args.getLastArg(options::OPT__SLASH_M_Group)) + RTOptionID = A->getOption().getID(); + + StringRef FlagForCRT; + switch (RTOptionID) { + case options::OPT__SLASH_MD: + if (Args.hasArg(options::OPT__SLASH_LDd)) + CmdArgs.push_back("-D_DEBUG"); + CmdArgs.push_back("-D_MT"); + CmdArgs.push_back("-D_DLL"); + FlagForCRT = "--dependent-lib=msvcrt"; + break; + case options::OPT__SLASH_MDd: + CmdArgs.push_back("-D_DEBUG"); + CmdArgs.push_back("-D_MT"); + CmdArgs.push_back("-D_DLL"); + FlagForCRT = "--dependent-lib=msvcrtd"; + break; + case options::OPT__SLASH_MT: + if (Args.hasArg(options::OPT__SLASH_LDd)) + CmdArgs.push_back("-D_DEBUG"); + CmdArgs.push_back("-D_MT"); + CmdArgs.push_back("-flto-visibility-public-std"); + FlagForCRT = "--dependent-lib=libcmt"; + break; + case options::OPT__SLASH_MTd: + CmdArgs.push_back("-D_DEBUG"); + CmdArgs.push_back("-D_MT"); + CmdArgs.push_back("-flto-visibility-public-std"); + FlagForCRT = "--dependent-lib=libcmtd"; + break; + default: + llvm_unreachable("Unexpected option ID."); + } + + if (Args.hasArg(options::OPT__SLASH_Zl)) { + CmdArgs.push_back("-D_VC_NODEFAULTLIB"); + } else { + CmdArgs.push_back(FlagForCRT.data()); + + // This provides POSIX compatibility (maps 'open' to '_open'), which most + // users want. The /Za flag to cl.exe turns this off, but it's not + // implemented in clang. + CmdArgs.push_back("--dependent-lib=oldnames"); + } + + // Both /showIncludes and /E (and /EP) write to stdout. Allowing both + // would produce interleaved output, so ignore /showIncludes in such cases. + if (!Args.hasArg(options::OPT_E) && !Args.hasArg(options::OPT__SLASH_EP)) + if (Arg *A = Args.getLastArg(options::OPT_show_includes)) + A->render(Args, CmdArgs); + + // This controls whether or not we emit RTTI data for polymorphic types. + if (Args.hasFlag(options::OPT__SLASH_GR_, options::OPT__SLASH_GR, + /*default=*/false)) + CmdArgs.push_back("-fno-rtti-data"); + + // This controls whether or not we emit stack-protector instrumentation. + // In MSVC, Buffer Security Check (/GS) is on by default. + if (Args.hasFlag(options::OPT__SLASH_GS, options::OPT__SLASH_GS_, + /*default=*/true)) { + CmdArgs.push_back("-stack-protector"); + CmdArgs.push_back(Args.MakeArgString(Twine(LangOptions::SSPStrong))); + } + + // Emit CodeView if -Z7, -Zd, or -gline-tables-only are present. + if (Arg *DebugInfoArg = + Args.getLastArg(options::OPT__SLASH_Z7, options::OPT__SLASH_Zd, + options::OPT_gline_tables_only)) { + *EmitCodeView = true; + if (DebugInfoArg->getOption().matches(options::OPT__SLASH_Z7)) + *DebugInfoKind = codegenoptions::LimitedDebugInfo; + else + *DebugInfoKind = codegenoptions::DebugLineTablesOnly; + CmdArgs.push_back("-gcodeview"); + } else { + *EmitCodeView = false; + } + + const Driver &D = getToolChain().getDriver(); + EHFlags EH = parseClangCLEHFlags(D, Args); + if (EH.Synch || EH.Asynch) { + if (types::isCXX(InputType)) + CmdArgs.push_back("-fcxx-exceptions"); + CmdArgs.push_back("-fexceptions"); + } + if (types::isCXX(InputType) && EH.Synch && EH.NoUnwindC) + CmdArgs.push_back("-fexternc-nounwind"); + + // /EP should expand to -E -P. + if (Args.hasArg(options::OPT__SLASH_EP)) { + CmdArgs.push_back("-E"); + CmdArgs.push_back("-P"); + } + + unsigned VolatileOptionID; + if (getToolChain().getArch() == llvm::Triple::x86_64 || + getToolChain().getArch() == llvm::Triple::x86) + VolatileOptionID = options::OPT__SLASH_volatile_ms; + else + VolatileOptionID = options::OPT__SLASH_volatile_iso; + + if (Arg *A = Args.getLastArg(options::OPT__SLASH_volatile_Group)) + VolatileOptionID = A->getOption().getID(); + + if (VolatileOptionID == options::OPT__SLASH_volatile_ms) + CmdArgs.push_back("-fms-volatile"); + + Arg *MostGeneralArg = Args.getLastArg(options::OPT__SLASH_vmg); + Arg *BestCaseArg = Args.getLastArg(options::OPT__SLASH_vmb); + if (MostGeneralArg && BestCaseArg) + D.Diag(clang::diag::err_drv_argument_not_allowed_with) + << MostGeneralArg->getAsString(Args) << BestCaseArg->getAsString(Args); + + if (MostGeneralArg) { + Arg *SingleArg = Args.getLastArg(options::OPT__SLASH_vms); + Arg *MultipleArg = Args.getLastArg(options::OPT__SLASH_vmm); + Arg *VirtualArg = Args.getLastArg(options::OPT__SLASH_vmv); + + Arg *FirstConflict = SingleArg ? SingleArg : MultipleArg; + Arg *SecondConflict = VirtualArg ? VirtualArg : MultipleArg; + if (FirstConflict && SecondConflict && FirstConflict != SecondConflict) + D.Diag(clang::diag::err_drv_argument_not_allowed_with) + << FirstConflict->getAsString(Args) + << SecondConflict->getAsString(Args); + + if (SingleArg) + CmdArgs.push_back("-fms-memptr-rep=single"); + else if (MultipleArg) + CmdArgs.push_back("-fms-memptr-rep=multiple"); + else + CmdArgs.push_back("-fms-memptr-rep=virtual"); + } + + // Parse the default calling convention options. + if (Arg *CCArg = + Args.getLastArg(options::OPT__SLASH_Gd, options::OPT__SLASH_Gr, + options::OPT__SLASH_Gz, options::OPT__SLASH_Gv)) { + unsigned DCCOptId = CCArg->getOption().getID(); + const char *DCCFlag = nullptr; + bool ArchSupported = true; + llvm::Triple::ArchType Arch = getToolChain().getArch(); + switch (DCCOptId) { + case options::OPT__SLASH_Gd: + DCCFlag = "-fdefault-calling-conv=cdecl"; + break; + case options::OPT__SLASH_Gr: + ArchSupported = Arch == llvm::Triple::x86; + DCCFlag = "-fdefault-calling-conv=fastcall"; + break; + case options::OPT__SLASH_Gz: + ArchSupported = Arch == llvm::Triple::x86; + DCCFlag = "-fdefault-calling-conv=stdcall"; + break; + case options::OPT__SLASH_Gv: + ArchSupported = Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64; + DCCFlag = "-fdefault-calling-conv=vectorcall"; + break; + } + + // MSVC doesn't warn if /Gr or /Gz is used on x64, so we don't either. + if (ArchSupported && DCCFlag) + CmdArgs.push_back(DCCFlag); + } + + if (Arg *A = Args.getLastArg(options::OPT_vtordisp_mode_EQ)) + A->render(Args, CmdArgs); + + if (!Args.hasArg(options::OPT_fdiagnostics_format_EQ)) { + CmdArgs.push_back("-fdiagnostics-format"); + if (Args.hasArg(options::OPT__SLASH_fallback)) + CmdArgs.push_back("msvc-fallback"); + else + CmdArgs.push_back("msvc"); + } +} + +visualstudio::Compiler *Clang::getCLFallback() const { + if (!CLFallback) + CLFallback.reset(new visualstudio::Compiler(getToolChain())); + return CLFallback.get(); +} + + +const char *Clang::getBaseInputName(const ArgList &Args, + const InputInfo &Input) { + return Args.MakeArgString(llvm::sys::path::filename(Input.getBaseInput())); +} + +const char *Clang::getBaseInputStem(const ArgList &Args, + const InputInfoList &Inputs) { + const char *Str = getBaseInputName(Args, Inputs[0]); + + if (const char *End = strrchr(Str, '.')) + return Args.MakeArgString(std::string(Str, End)); + + return Str; +} + +const char *Clang::getDependencyFileName(const ArgList &Args, + const InputInfoList &Inputs) { + // FIXME: Think about this more. + std::string Res; + + if (Arg *OutputOpt = Args.getLastArg(options::OPT_o)) { + std::string Str(OutputOpt->getValue()); + Res = Str.substr(0, Str.rfind('.')); + } else { + Res = getBaseInputStem(Args, Inputs); + } + return Args.MakeArgString(Res + ".d"); +} + +// Begin ClangAs + +void ClangAs::AddMIPSTargetArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + StringRef CPUName; + StringRef ABIName; + const llvm::Triple &Triple = getToolChain().getTriple(); + mips::getMipsCPUAndABI(Args, Triple, CPUName, ABIName); + + CmdArgs.push_back("-target-abi"); + CmdArgs.push_back(ABIName.data()); +} + +void ClangAs::AddX86TargetArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + if (Arg *A = Args.getLastArg(options::OPT_masm_EQ)) { + StringRef Value = A->getValue(); + if (Value == "intel" || Value == "att") { + CmdArgs.push_back("-mllvm"); + CmdArgs.push_back(Args.MakeArgString("-x86-asm-syntax=" + Value)); + } else { + getToolChain().getDriver().Diag(diag::err_drv_unsupported_option_argument) + << A->getOption().getName() << Value; + } + } +} + +void ClangAs::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + ArgStringList CmdArgs; + + assert(Inputs.size() == 1 && "Unexpected number of inputs."); + const InputInfo &Input = Inputs[0]; + + const llvm::Triple &Triple = getToolChain().getEffectiveTriple(); + const std::string &TripleStr = Triple.getTriple(); + const auto &D = getToolChain().getDriver(); + + // Don't warn about "clang -w -c foo.s" + Args.ClaimAllArgs(options::OPT_w); + // and "clang -emit-llvm -c foo.s" + Args.ClaimAllArgs(options::OPT_emit_llvm); + + claimNoWarnArgs(Args); + + // Invoke ourselves in -cc1as mode. + // + // FIXME: Implement custom jobs for internal actions. + CmdArgs.push_back("-cc1as"); + + // Add the "effective" target triple. + CmdArgs.push_back("-triple"); + CmdArgs.push_back(Args.MakeArgString(TripleStr)); + + // Set the output mode, we currently only expect to be used as a real + // assembler. + CmdArgs.push_back("-filetype"); + CmdArgs.push_back("obj"); + + // Set the main file name, so that debug info works even with + // -save-temps or preprocessed assembly. + CmdArgs.push_back("-main-file-name"); + CmdArgs.push_back(Clang::getBaseInputName(Args, Input)); + + // Add the target cpu + std::string CPU = getCPUName(Args, Triple, /*FromAs*/ true); + if (!CPU.empty()) { + CmdArgs.push_back("-target-cpu"); + CmdArgs.push_back(Args.MakeArgString(CPU)); + } + + // Add the target features + getTargetFeatures(getToolChain(), Triple, Args, CmdArgs, true); + + // Ignore explicit -force_cpusubtype_ALL option. + (void)Args.hasArg(options::OPT_force__cpusubtype__ALL); + + // Pass along any -I options so we get proper .include search paths. + Args.AddAllArgs(CmdArgs, options::OPT_I_Group); + + // Determine the original source input. + const Action *SourceAction = &JA; + while (SourceAction->getKind() != Action::InputClass) { + assert(!SourceAction->getInputs().empty() && "unexpected root action!"); + SourceAction = SourceAction->getInputs()[0]; + } + + // Forward -g and handle debug info related flags, assuming we are dealing + // with an actual assembly file. + bool WantDebug = false; + unsigned DwarfVersion = 0; + Args.ClaimAllArgs(options::OPT_g_Group); + if (Arg *A = Args.getLastArg(options::OPT_g_Group)) { + WantDebug = !A->getOption().matches(options::OPT_g0) && + !A->getOption().matches(options::OPT_ggdb0); + if (WantDebug) + DwarfVersion = DwarfVersionNum(A->getSpelling()); + } + if (DwarfVersion == 0) + DwarfVersion = getToolChain().GetDefaultDwarfVersion(); + + codegenoptions::DebugInfoKind DebugInfoKind = codegenoptions::NoDebugInfo; + + if (SourceAction->getType() == types::TY_Asm || + SourceAction->getType() == types::TY_PP_Asm) { + // You might think that it would be ok to set DebugInfoKind outside of + // the guard for source type, however there is a test which asserts + // that some assembler invocation receives no -debug-info-kind, + // and it's not clear whether that test is just overly restrictive. + DebugInfoKind = (WantDebug ? codegenoptions::LimitedDebugInfo + : codegenoptions::NoDebugInfo); + // Add the -fdebug-compilation-dir flag if needed. + addDebugCompDirArg(Args, CmdArgs); + + // Set the AT_producer to the clang version when using the integrated + // assembler on assembly source files. + CmdArgs.push_back("-dwarf-debug-producer"); + CmdArgs.push_back(Args.MakeArgString(getClangFullVersion())); + + // And pass along -I options + Args.AddAllArgs(CmdArgs, options::OPT_I); + } + RenderDebugEnablingArgs(Args, CmdArgs, DebugInfoKind, DwarfVersion, + llvm::DebuggerKind::Default); + RenderDebugInfoCompressionArgs(Args, CmdArgs, D); + + + // Handle -fPIC et al -- the relocation-model affects the assembler + // for some targets. + llvm::Reloc::Model RelocationModel; + unsigned PICLevel; + bool IsPIE; + std::tie(RelocationModel, PICLevel, IsPIE) = + ParsePICArgs(getToolChain(), Args); + + const char *RMName = RelocationModelName(RelocationModel); + if (RMName) { + CmdArgs.push_back("-mrelocation-model"); + CmdArgs.push_back(RMName); + } + + // Optionally embed the -cc1as level arguments into the debug info, for build + // analysis. + if (getToolChain().UseDwarfDebugFlags()) { + ArgStringList OriginalArgs; + for (const auto &Arg : Args) + Arg->render(Args, OriginalArgs); + + SmallString<256> Flags; + const char *Exec = getToolChain().getDriver().getClangProgramPath(); + Flags += Exec; + for (const char *OriginalArg : OriginalArgs) { + SmallString<128> EscapedArg; + EscapeSpacesAndBackslashes(OriginalArg, EscapedArg); + Flags += " "; + Flags += EscapedArg; + } + CmdArgs.push_back("-dwarf-debug-flags"); + CmdArgs.push_back(Args.MakeArgString(Flags)); + } + + // FIXME: Add -static support, once we have it. + + // Add target specific flags. + switch (getToolChain().getArch()) { + default: + break; + + case llvm::Triple::mips: + case llvm::Triple::mipsel: + case llvm::Triple::mips64: + case llvm::Triple::mips64el: + AddMIPSTargetArgs(Args, CmdArgs); + break; + + case llvm::Triple::x86: + case llvm::Triple::x86_64: + AddX86TargetArgs(Args, CmdArgs); + break; + + case llvm::Triple::arm: + case llvm::Triple::armeb: + case llvm::Triple::thumb: + case llvm::Triple::thumbeb: + // This isn't in AddARMTargetArgs because we want to do this for assembly + // only, not C/C++. + if (Args.hasFlag(options::OPT_mdefault_build_attributes, + options::OPT_mno_default_build_attributes, true)) { + CmdArgs.push_back("-mllvm"); + CmdArgs.push_back("-arm-add-build-attributes"); + } + break; + } + + // Consume all the warning flags. Usually this would be handled more + // gracefully by -cc1 (warning about unknown warning flags, etc) but -cc1as + // doesn't handle that so rather than warning about unused flags that are + // actually used, we'll lie by omission instead. + // FIXME: Stop lying and consume only the appropriate driver flags + Args.ClaimAllArgs(options::OPT_W_Group); + + CollectArgsForIntegratedAssembler(C, Args, CmdArgs, + getToolChain().getDriver()); + + Args.AddAllArgs(CmdArgs, options::OPT_mllvm); + + assert(Output.isFilename() && "Unexpected lipo output."); + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + assert(Input.isFilename() && "Invalid input."); + CmdArgs.push_back(Input.getFilename()); + + const char *Exec = getToolChain().getDriver().getClangProgramPath(); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); + + // Handle the debug info splitting at object creation time if we're + // creating an object. + // TODO: Currently only works on linux with newer objcopy. + if (Args.hasArg(options::OPT_gsplit_dwarf) && + getToolChain().getTriple().isOSLinux()) + SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output, + SplitDebugName(Args, Input)); +} + +// Begin OffloadBundler + +void OffloadBundler::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const { + // The version with only one output is expected to refer to a bundling job. + assert(isa<OffloadBundlingJobAction>(JA) && "Expecting bundling job!"); + + // The bundling command looks like this: + // clang-offload-bundler -type=bc + // -targets=host-triple,openmp-triple1,openmp-triple2 + // -outputs=input_file + // -inputs=unbundle_file_host,unbundle_file_tgt1,unbundle_file_tgt2" + + ArgStringList CmdArgs; + + // Get the type. + CmdArgs.push_back(TCArgs.MakeArgString( + Twine("-type=") + types::getTypeTempSuffix(Output.getType()))); + + assert(JA.getInputs().size() == Inputs.size() && + "Not have inputs for all dependence actions??"); + + // Get the targets. + SmallString<128> Triples; + Triples += "-targets="; + for (unsigned I = 0; I < Inputs.size(); ++I) { + if (I) + Triples += ','; + + Action::OffloadKind CurKind = Action::OFK_Host; + const ToolChain *CurTC = &getToolChain(); + const Action *CurDep = JA.getInputs()[I]; + + if (const auto *OA = dyn_cast<OffloadAction>(CurDep)) { + OA->doOnEachDependence([&](Action *A, const ToolChain *TC, const char *) { + CurKind = A->getOffloadingDeviceKind(); + CurTC = TC; + }); + } + Triples += Action::GetOffloadKindName(CurKind); + Triples += '-'; + Triples += CurTC->getTriple().normalize(); + } + CmdArgs.push_back(TCArgs.MakeArgString(Triples)); + + // Get bundled file command. + CmdArgs.push_back( + TCArgs.MakeArgString(Twine("-outputs=") + Output.getFilename())); + + // Get unbundled files command. + SmallString<128> UB; + UB += "-inputs="; + for (unsigned I = 0; I < Inputs.size(); ++I) { + if (I) + UB += ','; + UB += Inputs[I].getFilename(); + } + CmdArgs.push_back(TCArgs.MakeArgString(UB)); + + // All the inputs are encoded as commands. + C.addCommand(llvm::make_unique<Command>( + JA, *this, + TCArgs.MakeArgString(getToolChain().GetProgramPath(getShortName())), + CmdArgs, None)); +} + +void OffloadBundler::ConstructJobMultipleOutputs( + Compilation &C, const JobAction &JA, const InputInfoList &Outputs, + const InputInfoList &Inputs, const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const { + // The version with multiple outputs is expected to refer to a unbundling job. + auto &UA = cast<OffloadUnbundlingJobAction>(JA); + + // The unbundling command looks like this: + // clang-offload-bundler -type=bc + // -targets=host-triple,openmp-triple1,openmp-triple2 + // -inputs=input_file + // -outputs=unbundle_file_host,unbundle_file_tgt1,unbundle_file_tgt2" + // -unbundle + + ArgStringList CmdArgs; + + assert(Inputs.size() == 1 && "Expecting to unbundle a single file!"); + InputInfo Input = Inputs.front(); + + // Get the type. + CmdArgs.push_back(TCArgs.MakeArgString( + Twine("-type=") + types::getTypeTempSuffix(Input.getType()))); + + // Get the targets. + SmallString<128> Triples; + Triples += "-targets="; + auto DepInfo = UA.getDependentActionsInfo(); + for (unsigned I = 0; I < DepInfo.size(); ++I) { + if (I) + Triples += ','; + + auto &Dep = DepInfo[I]; + Triples += Action::GetOffloadKindName(Dep.DependentOffloadKind); + Triples += '-'; + Triples += Dep.DependentToolChain->getTriple().normalize(); + } + + CmdArgs.push_back(TCArgs.MakeArgString(Triples)); + + // Get bundled file command. + CmdArgs.push_back( + TCArgs.MakeArgString(Twine("-inputs=") + Input.getFilename())); + + // Get unbundled files command. + SmallString<128> UB; + UB += "-outputs="; + for (unsigned I = 0; I < Outputs.size(); ++I) { + if (I) + UB += ','; + UB += Outputs[I].getFilename(); + } + CmdArgs.push_back(TCArgs.MakeArgString(UB)); + CmdArgs.push_back("-unbundle"); + + // All the inputs are encoded as commands. + C.addCommand(llvm::make_unique<Command>( + JA, *this, + TCArgs.MakeArgString(getToolChain().GetProgramPath(getShortName())), + CmdArgs, None)); +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Clang.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Clang.h new file mode 100644 index 0000000..d53c3b4 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Clang.h @@ -0,0 +1,149 @@ +//===--- Clang.h - Clang Tool and ToolChain Implementations ====-*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_Clang_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_Clang_H + +#include "MSVC.h" +#include "clang/Basic/DebugInfoOptions.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/Types.h" +#include "llvm/ADT/Triple.h" +#include "llvm/Option/Option.h" +#include "llvm/Support/raw_ostream.h" + +namespace clang { +class ObjCRuntime; +namespace driver { + +namespace tools { + +/// \brief Clang compiler tool. +class LLVM_LIBRARY_VISIBILITY Clang : public Tool { +public: + static const char *getBaseInputName(const llvm::opt::ArgList &Args, + const InputInfo &Input); + static const char *getBaseInputStem(const llvm::opt::ArgList &Args, + const InputInfoList &Inputs); + static const char *getDependencyFileName(const llvm::opt::ArgList &Args, + const InputInfoList &Inputs); + +private: + void AddPreprocessingOptions(Compilation &C, const JobAction &JA, + const Driver &D, const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs, + const InputInfo &Output, + const InputInfoList &Inputs) const; + + void AddAArch64TargetArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const; + void AddARMTargetArgs(const llvm::Triple &Triple, + const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs, + bool KernelOrKext) const; + void AddARM64TargetArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const; + void AddMIPSTargetArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const; + void AddPPCTargetArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const; + void AddR600TargetArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const; + void AddSparcTargetArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const; + void AddSystemZTargetArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const; + void AddX86TargetArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const; + void AddHexagonTargetArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const; + void AddLanaiTargetArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const; + void AddWebAssemblyTargetArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const; + + enum RewriteKind { RK_None, RK_Fragile, RK_NonFragile }; + + ObjCRuntime AddObjCRuntimeArgs(const llvm::opt::ArgList &args, + llvm::opt::ArgStringList &cmdArgs, + RewriteKind rewrite) const; + + void AddClangCLArgs(const llvm::opt::ArgList &Args, types::ID InputType, + llvm::opt::ArgStringList &CmdArgs, + codegenoptions::DebugInfoKind *DebugInfoKind, + bool *EmitCodeView) const; + + visualstudio::Compiler *getCLFallback() const; + + mutable std::unique_ptr<visualstudio::Compiler> CLFallback; + + mutable std::unique_ptr<llvm::raw_fd_ostream> CompilationDatabase = nullptr; + void DumpCompilationDatabase(Compilation &C, StringRef Filename, + StringRef Target, + const InputInfo &Output, const InputInfo &Input, + const llvm::opt::ArgList &Args) const; + +public: + Clang(const ToolChain &TC); + ~Clang() override; + + bool hasGoodDiagnostics() const override { return true; } + bool hasIntegratedAssembler() const override { return true; } + bool hasIntegratedCPP() const override { return true; } + bool canEmitIR() const override { return true; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +/// \brief Clang integrated assembler tool. +class LLVM_LIBRARY_VISIBILITY ClangAs : public Tool { +public: + ClangAs(const ToolChain &TC) + : Tool("clang::as", "clang integrated assembler", TC, RF_Full) {} + void AddMIPSTargetArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const; + void AddX86TargetArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const; + bool hasGoodDiagnostics() const override { return true; } + bool hasIntegratedAssembler() const override { return false; } + bool hasIntegratedCPP() const override { return false; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +/// Offload bundler tool. +class LLVM_LIBRARY_VISIBILITY OffloadBundler final : public Tool { +public: + OffloadBundler(const ToolChain &TC) + : Tool("offload bundler", "clang-offload-bundler", TC) {} + + bool hasIntegratedCPP() const override { return false; } + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; + void ConstructJobMultipleOutputs(Compilation &C, const JobAction &JA, + const InputInfoList &Outputs, + const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; +} // end namespace tools + +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_CLANG_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/CloudABI.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/CloudABI.cpp new file mode 100644 index 0000000..0f6c712 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/CloudABI.cpp @@ -0,0 +1,145 @@ +//===--- CloudABI.cpp - CloudABI ToolChain Implementations ------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "CloudABI.h" +#include "InputInfo.h" +#include "CommonArgs.h" +#include "clang/Config/config.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/Options.h" +#include "llvm/ADT/SmallString.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Support/Path.h" + +using namespace clang::driver; +using namespace clang::driver::tools; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +void cloudabi::Linker::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + const ToolChain &ToolChain = getToolChain(); + const Driver &D = ToolChain.getDriver(); + ArgStringList CmdArgs; + + // Silence warning for "clang -g foo.o -o foo" + Args.ClaimAllArgs(options::OPT_g_Group); + // and "clang -emit-llvm foo.o -o foo" + Args.ClaimAllArgs(options::OPT_emit_llvm); + // and for "clang -w foo.o -o foo". Other warning options are already + // handled somewhere else. + Args.ClaimAllArgs(options::OPT_w); + + if (!D.SysRoot.empty()) + CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); + + // CloudABI only supports static linkage. + CmdArgs.push_back("-Bstatic"); + CmdArgs.push_back("--no-dynamic-linker"); + + // Provide PIE linker flags in case PIE is default for the architecture. + if (ToolChain.isPIEDefault()) { + CmdArgs.push_back("-pie"); + CmdArgs.push_back("-zrelro"); + } + + CmdArgs.push_back("--eh-frame-hdr"); + CmdArgs.push_back("--gc-sections"); + + if (Output.isFilename()) { + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + } else { + assert(Output.isNothing() && "Invalid output."); + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt0.o"))); + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtbegin.o"))); + } + + Args.AddAllArgs(CmdArgs, options::OPT_L); + ToolChain.AddFilePathLibArgs(Args, CmdArgs); + Args.AddAllArgs(CmdArgs, + {options::OPT_T_Group, options::OPT_e, options::OPT_s, + options::OPT_t, options::OPT_Z_Flag, options::OPT_r}); + + if (D.isUsingLTO()) + AddGoldPlugin(ToolChain, Args, CmdArgs, D.getLTOMode() == LTOK_Thin, D); + + AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { + if (D.CCCIsCXX()) + ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs); + CmdArgs.push_back("-lc"); + CmdArgs.push_back("-lcompiler_rt"); + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtend.o"))); + + const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath()); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +// CloudABI - CloudABI tool chain which can call ld(1) directly. + +CloudABI::CloudABI(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : Generic_ELF(D, Triple, Args) { + SmallString<128> P(getDriver().Dir); + llvm::sys::path::append(P, "..", getTriple().str(), "lib"); + getFilePaths().push_back(P.str()); +} + +std::string CloudABI::findLibCxxIncludePath() const { + SmallString<128> P(getDriver().Dir); + llvm::sys::path::append(P, "..", getTriple().str(), "include/c++/v1"); + return P.str(); +} + +void CloudABI::AddCXXStdlibLibArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + CmdArgs.push_back("-lc++"); + CmdArgs.push_back("-lc++abi"); + CmdArgs.push_back("-lunwind"); +} + +Tool *CloudABI::buildLinker() const { + return new tools::cloudabi::Linker(*this); +} + +bool CloudABI::isPIEDefault() const { + // Only enable PIE on architectures that support PC-relative + // addressing. PC-relative addressing is required, as the process + // startup code must be able to relocate itself. + switch (getTriple().getArch()) { + case llvm::Triple::aarch64: + case llvm::Triple::x86_64: + return true; + default: + return false; + } +} + +SanitizerMask CloudABI::getSupportedSanitizers() const { + SanitizerMask Res = ToolChain::getSupportedSanitizers(); + Res |= SanitizerKind::SafeStack; + return Res; +} + +SanitizerMask CloudABI::getDefaultSanitizers() const { + return SanitizerKind::SafeStack; +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/CloudABI.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/CloudABI.h new file mode 100644 index 0000000..a284eb3 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/CloudABI.h @@ -0,0 +1,69 @@ +//===--- CloudABI.h - CloudABI ToolChain Implementations --------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_CLOUDABI_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_CLOUDABI_H + +#include "Gnu.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace tools { + +/// cloudabi -- Directly call GNU Binutils linker +namespace cloudabi { +class LLVM_LIBRARY_VISIBILITY Linker : public GnuTool { +public: + Linker(const ToolChain &TC) : GnuTool("cloudabi::Linker", "linker", TC) {} + + bool hasIntegratedCPP() const override { return false; } + bool isLinkJob() const override { return true; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; +} // end namespace cloudabi +} // end namespace tools + +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY CloudABI : public Generic_ELF { +public: + CloudABI(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + bool HasNativeLLVMSupport() const override { return true; } + + bool IsMathErrnoDefault() const override { return false; } + bool IsObjCNonFragileABIDefault() const override { return true; } + + CXXStdlibType + GetCXXStdlibType(const llvm::opt::ArgList &Args) const override { + return ToolChain::CST_Libcxx; + } + std::string findLibCxxIncludePath() const override; + void AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const override; + + bool isPIEDefault() const override; + SanitizerMask getSupportedSanitizers() const override; + SanitizerMask getDefaultSanitizers() const override; + +protected: + Tool *buildLinker() const override; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_CLOUDABI_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/CommonArgs.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/CommonArgs.cpp new file mode 100644 index 0000000..00bd60b --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/CommonArgs.cpp @@ -0,0 +1,1025 @@ +//===--- CommonArgs.cpp - Args handling for multiple toolchains -*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "CommonArgs.h" +#include "InputInfo.h" +#include "Hexagon.h" +#include "Arch/AArch64.h" +#include "Arch/ARM.h" +#include "Arch/Mips.h" +#include "Arch/PPC.h" +#include "Arch/SystemZ.h" +#include "Arch/X86.h" +#include "clang/Basic/CharInfo.h" +#include "clang/Basic/LangOptions.h" +#include "clang/Basic/ObjCRuntime.h" +#include "clang/Basic/Version.h" +#include "clang/Basic/VirtualFileSystem.h" +#include "clang/Config/config.h" +#include "clang/Driver/Action.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Job.h" +#include "clang/Driver/Options.h" +#include "clang/Driver/SanitizerArgs.h" +#include "clang/Driver/ToolChain.h" +#include "clang/Driver/Util.h" +#include "llvm/ADT/STLExtras.h" +#include "llvm/ADT/SmallString.h" +#include "llvm/ADT/StringExtras.h" +#include "llvm/ADT/StringSwitch.h" +#include "llvm/ADT/Twine.h" +#include "llvm/Option/Arg.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Option/Option.h" +#include "llvm/Support/CodeGen.h" +#include "llvm/Support/Compression.h" +#include "llvm/Support/ErrorHandling.h" +#include "llvm/Support/FileSystem.h" +#include "llvm/Support/Host.h" +#include "llvm/Support/Path.h" +#include "llvm/Support/Process.h" +#include "llvm/Support/Program.h" +#include "llvm/Support/ScopedPrinter.h" +#include "llvm/Support/TargetParser.h" +#include "llvm/Support/YAMLParser.h" + +using namespace clang::driver; +using namespace clang::driver::tools; +using namespace clang; +using namespace llvm::opt; + +void tools::addPathIfExists(const Driver &D, const Twine &Path, + ToolChain::path_list &Paths) { + if (D.getVFS().exists(Path)) + Paths.push_back(Path.str()); +} + +void tools::handleTargetFeaturesGroup(const ArgList &Args, + std::vector<StringRef> &Features, + OptSpecifier Group) { + for (const Arg *A : Args.filtered(Group)) { + StringRef Name = A->getOption().getName(); + A->claim(); + + // Skip over "-m". + assert(Name.startswith("m") && "Invalid feature name."); + Name = Name.substr(1); + + bool IsNegative = Name.startswith("no-"); + if (IsNegative) + Name = Name.substr(3); + Features.push_back(Args.MakeArgString((IsNegative ? "-" : "+") + Name)); + } +} + +void tools::addDirectoryList(const ArgList &Args, ArgStringList &CmdArgs, + const char *ArgName, const char *EnvVar) { + const char *DirList = ::getenv(EnvVar); + bool CombinedArg = false; + + if (!DirList) + return; // Nothing to do. + + StringRef Name(ArgName); + if (Name.equals("-I") || Name.equals("-L")) + CombinedArg = true; + + StringRef Dirs(DirList); + if (Dirs.empty()) // Empty string should not add '.'. + return; + + StringRef::size_type Delim; + while ((Delim = Dirs.find(llvm::sys::EnvPathSeparator)) != StringRef::npos) { + if (Delim == 0) { // Leading colon. + if (CombinedArg) { + CmdArgs.push_back(Args.MakeArgString(std::string(ArgName) + ".")); + } else { + CmdArgs.push_back(ArgName); + CmdArgs.push_back("."); + } + } else { + if (CombinedArg) { + CmdArgs.push_back( + Args.MakeArgString(std::string(ArgName) + Dirs.substr(0, Delim))); + } else { + CmdArgs.push_back(ArgName); + CmdArgs.push_back(Args.MakeArgString(Dirs.substr(0, Delim))); + } + } + Dirs = Dirs.substr(Delim + 1); + } + + if (Dirs.empty()) { // Trailing colon. + if (CombinedArg) { + CmdArgs.push_back(Args.MakeArgString(std::string(ArgName) + ".")); + } else { + CmdArgs.push_back(ArgName); + CmdArgs.push_back("."); + } + } else { // Add the last path. + if (CombinedArg) { + CmdArgs.push_back(Args.MakeArgString(std::string(ArgName) + Dirs)); + } else { + CmdArgs.push_back(ArgName); + CmdArgs.push_back(Args.MakeArgString(Dirs)); + } + } +} + +void tools::AddLinkerInputs(const ToolChain &TC, const InputInfoList &Inputs, + const ArgList &Args, ArgStringList &CmdArgs, + const JobAction &JA) { + const Driver &D = TC.getDriver(); + + // Add extra linker input arguments which are not treated as inputs + // (constructed via -Xarch_). + Args.AddAllArgValues(CmdArgs, options::OPT_Zlinker_input); + + for (const auto &II : Inputs) { + // If the current tool chain refers to an OpenMP offloading host, we should + // ignore inputs that refer to OpenMP offloading devices - they will be + // embedded according to a proper linker script. + if (auto *IA = II.getAction()) + if (JA.isHostOffloading(Action::OFK_OpenMP) && + IA->isDeviceOffloading(Action::OFK_OpenMP)) + continue; + + if (!TC.HasNativeLLVMSupport() && types::isLLVMIR(II.getType())) + // Don't try to pass LLVM inputs unless we have native support. + D.Diag(diag::err_drv_no_linker_llvm_support) << TC.getTripleString(); + + // Add filenames immediately. + if (II.isFilename()) { + CmdArgs.push_back(II.getFilename()); + continue; + } + + // Otherwise, this is a linker input argument. + const Arg &A = II.getInputArg(); + + // Handle reserved library options. + if (A.getOption().matches(options::OPT_Z_reserved_lib_stdcxx)) + TC.AddCXXStdlibLibArgs(Args, CmdArgs); + else if (A.getOption().matches(options::OPT_Z_reserved_lib_cckext)) + TC.AddCCKextLibArgs(Args, CmdArgs); + else if (A.getOption().matches(options::OPT_z)) { + // Pass -z prefix for gcc linker compatibility. + A.claim(); + A.render(Args, CmdArgs); + } else { + A.renderAsInput(Args, CmdArgs); + } + } + + // LIBRARY_PATH - included following the user specified library paths. + // and only supported on native toolchains. + if (!TC.isCrossCompiling()) { + addDirectoryList(Args, CmdArgs, "-L", "LIBRARY_PATH"); + } +} + +void tools::AddTargetFeature(const ArgList &Args, + std::vector<StringRef> &Features, + OptSpecifier OnOpt, OptSpecifier OffOpt, + StringRef FeatureName) { + if (Arg *A = Args.getLastArg(OnOpt, OffOpt)) { + if (A->getOption().matches(OnOpt)) + Features.push_back(Args.MakeArgString("+" + FeatureName)); + else + Features.push_back(Args.MakeArgString("-" + FeatureName)); + } +} + +/// Get the (LLVM) name of the R600 gpu we are targeting. +static std::string getR600TargetGPU(const ArgList &Args) { + if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) { + const char *GPUName = A->getValue(); + return llvm::StringSwitch<const char *>(GPUName) + .Cases("rv630", "rv635", "r600") + .Cases("rv610", "rv620", "rs780", "rs880") + .Case("rv740", "rv770") + .Case("palm", "cedar") + .Cases("sumo", "sumo2", "sumo") + .Case("hemlock", "cypress") + .Case("aruba", "cayman") + .Default(GPUName); + } + return ""; +} + +static std::string getNios2TargetCPU(const ArgList &Args) { + Arg *A = Args.getLastArg(options::OPT_mcpu_EQ); + if (!A) + A = Args.getLastArg(options::OPT_march_EQ); + + if (!A) + return ""; + + const char *name = A->getValue(); + return llvm::StringSwitch<const char *>(name) + .Case("r1", "nios2r1") + .Case("r2", "nios2r2") + .Default(name); +} + +static std::string getLanaiTargetCPU(const ArgList &Args) { + if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) { + return A->getValue(); + } + return ""; +} + +/// Get the (LLVM) name of the WebAssembly cpu we are targeting. +static StringRef getWebAssemblyTargetCPU(const ArgList &Args) { + // If we have -mcpu=, use that. + if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) { + StringRef CPU = A->getValue(); + +#ifdef __wasm__ + // Handle "native" by examining the host. "native" isn't meaningful when + // cross compiling, so only support this when the host is also WebAssembly. + if (CPU == "native") + return llvm::sys::getHostCPUName(); +#endif + + return CPU; + } + + return "generic"; +} + +std::string tools::getCPUName(const ArgList &Args, const llvm::Triple &T, + bool FromAs) { + Arg *A; + + switch (T.getArch()) { + default: + return ""; + + case llvm::Triple::aarch64: + case llvm::Triple::aarch64_be: + return aarch64::getAArch64TargetCPU(Args, A); + + case llvm::Triple::arm: + case llvm::Triple::armeb: + case llvm::Triple::thumb: + case llvm::Triple::thumbeb: { + StringRef MArch, MCPU; + arm::getARMArchCPUFromArgs(Args, MArch, MCPU, FromAs); + return arm::getARMTargetCPU(MCPU, MArch, T); + } + + case llvm::Triple::avr: + if (const Arg *A = Args.getLastArg(options::OPT_mmcu_EQ)) + return A->getValue(); + return ""; + + case llvm::Triple::nios2: { + return getNios2TargetCPU(Args); + } + + case llvm::Triple::mips: + case llvm::Triple::mipsel: + case llvm::Triple::mips64: + case llvm::Triple::mips64el: { + StringRef CPUName; + StringRef ABIName; + mips::getMipsCPUAndABI(Args, T, CPUName, ABIName); + return CPUName; + } + + case llvm::Triple::nvptx: + case llvm::Triple::nvptx64: + if (const Arg *A = Args.getLastArg(options::OPT_march_EQ)) + return A->getValue(); + return ""; + + case llvm::Triple::ppc: + case llvm::Triple::ppc64: + case llvm::Triple::ppc64le: { + std::string TargetCPUName = ppc::getPPCTargetCPU(Args); + // LLVM may default to generating code for the native CPU, + // but, like gcc, we default to a more generic option for + // each architecture. (except on Darwin) + if (TargetCPUName.empty() && !T.isOSDarwin()) { + if (T.getArch() == llvm::Triple::ppc64) + TargetCPUName = "ppc64"; + else if (T.getArch() == llvm::Triple::ppc64le) + TargetCPUName = "ppc64le"; + else + TargetCPUName = "ppc"; + } + return TargetCPUName; + } + + case llvm::Triple::sparc: + case llvm::Triple::sparcel: + case llvm::Triple::sparcv9: + if (const Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) + return A->getValue(); + return ""; + + case llvm::Triple::x86: + case llvm::Triple::x86_64: + return x86::getX86TargetCPU(Args, T); + + case llvm::Triple::hexagon: + return "hexagon" + + toolchains::HexagonToolChain::GetTargetCPUVersion(Args).str(); + + case llvm::Triple::lanai: + return getLanaiTargetCPU(Args); + + case llvm::Triple::systemz: + return systemz::getSystemZTargetCPU(Args); + + case llvm::Triple::r600: + case llvm::Triple::amdgcn: + return getR600TargetGPU(Args); + + case llvm::Triple::wasm32: + case llvm::Triple::wasm64: + return getWebAssemblyTargetCPU(Args); + } +} + +unsigned tools::getLTOParallelism(const ArgList &Args, const Driver &D) { + unsigned Parallelism = 0; + Arg *LtoJobsArg = Args.getLastArg(options::OPT_flto_jobs_EQ); + if (LtoJobsArg && + StringRef(LtoJobsArg->getValue()).getAsInteger(10, Parallelism)) + D.Diag(diag::err_drv_invalid_int_value) << LtoJobsArg->getAsString(Args) + << LtoJobsArg->getValue(); + return Parallelism; +} + +// CloudABI and WebAssembly use -ffunction-sections and -fdata-sections by +// default. +bool tools::isUseSeparateSections(const llvm::Triple &Triple) { + return Triple.getOS() == llvm::Triple::CloudABI || + Triple.getArch() == llvm::Triple::wasm32 || + Triple.getArch() == llvm::Triple::wasm64; +} + +void tools::AddGoldPlugin(const ToolChain &ToolChain, const ArgList &Args, + ArgStringList &CmdArgs, bool IsThinLTO, + const Driver &D) { + // Tell the linker to load the plugin. This has to come before AddLinkerInputs + // as gold requires -plugin to come before any -plugin-opt that -Wl might + // forward. + CmdArgs.push_back("-plugin"); + std::string Plugin = + ToolChain.getDriver().Dir + "/../lib" CLANG_LIBDIR_SUFFIX "/LLVMgold.so"; + CmdArgs.push_back(Args.MakeArgString(Plugin)); + + // Try to pass driver level flags relevant to LTO code generation down to + // the plugin. + + // Handle flags for selecting CPU variants. + std::string CPU = getCPUName(Args, ToolChain.getTriple()); + if (!CPU.empty()) + CmdArgs.push_back(Args.MakeArgString(Twine("-plugin-opt=mcpu=") + CPU)); + + if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { + StringRef OOpt; + if (A->getOption().matches(options::OPT_O4) || + A->getOption().matches(options::OPT_Ofast)) + OOpt = "3"; + else if (A->getOption().matches(options::OPT_O)) + OOpt = A->getValue(); + else if (A->getOption().matches(options::OPT_O0)) + OOpt = "0"; + if (!OOpt.empty()) + CmdArgs.push_back(Args.MakeArgString(Twine("-plugin-opt=O") + OOpt)); + } + + if (IsThinLTO) + CmdArgs.push_back("-plugin-opt=thinlto"); + + if (unsigned Parallelism = getLTOParallelism(Args, D)) + CmdArgs.push_back(Args.MakeArgString(Twine("-plugin-opt=jobs=") + + llvm::to_string(Parallelism))); + + // If an explicit debugger tuning argument appeared, pass it along. + if (Arg *A = Args.getLastArg(options::OPT_gTune_Group, + options::OPT_ggdbN_Group)) { + if (A->getOption().matches(options::OPT_glldb)) + CmdArgs.push_back("-plugin-opt=-debugger-tune=lldb"); + else if (A->getOption().matches(options::OPT_gsce)) + CmdArgs.push_back("-plugin-opt=-debugger-tune=sce"); + else + CmdArgs.push_back("-plugin-opt=-debugger-tune=gdb"); + } + + bool UseSeparateSections = + isUseSeparateSections(ToolChain.getEffectiveTriple()); + + if (Args.hasFlag(options::OPT_ffunction_sections, + options::OPT_fno_function_sections, UseSeparateSections)) { + CmdArgs.push_back("-plugin-opt=-function-sections"); + } + + if (Args.hasFlag(options::OPT_fdata_sections, options::OPT_fno_data_sections, + UseSeparateSections)) { + CmdArgs.push_back("-plugin-opt=-data-sections"); + } + + if (Arg *A = getLastProfileSampleUseArg(Args)) { + StringRef FName = A->getValue(); + if (!llvm::sys::fs::exists(FName)) + D.Diag(diag::err_drv_no_such_file) << FName; + else + CmdArgs.push_back( + Args.MakeArgString(Twine("-plugin-opt=sample-profile=") + FName)); + } +} + +void tools::addArchSpecificRPath(const ToolChain &TC, const ArgList &Args, + ArgStringList &CmdArgs) { + std::string CandidateRPath = TC.getArchSpecificLibPath(); + if (TC.getVFS().exists(CandidateRPath)) { + CmdArgs.push_back("-rpath"); + CmdArgs.push_back(Args.MakeArgString(CandidateRPath.c_str())); + } +} + +bool tools::addOpenMPRuntime(ArgStringList &CmdArgs, const ToolChain &TC, + const ArgList &Args, bool IsOffloadingHost, + bool GompNeedsRT) { + if (!Args.hasFlag(options::OPT_fopenmp, options::OPT_fopenmp_EQ, + options::OPT_fno_openmp, false)) + return false; + + switch (TC.getDriver().getOpenMPRuntime(Args)) { + case Driver::OMPRT_OMP: + CmdArgs.push_back("-lomp"); + break; + case Driver::OMPRT_GOMP: + CmdArgs.push_back("-lgomp"); + + if (GompNeedsRT) + CmdArgs.push_back("-lrt"); + break; + case Driver::OMPRT_IOMP5: + CmdArgs.push_back("-liomp5"); + break; + case Driver::OMPRT_Unknown: + // Already diagnosed. + return false; + } + + if (IsOffloadingHost) + CmdArgs.push_back("-lomptarget"); + + addArchSpecificRPath(TC, Args, CmdArgs); + + return true; +} + +static void addSanitizerRuntime(const ToolChain &TC, const ArgList &Args, + ArgStringList &CmdArgs, StringRef Sanitizer, + bool IsShared, bool IsWhole) { + // Wrap any static runtimes that must be forced into executable in + // whole-archive. + if (IsWhole) CmdArgs.push_back("-whole-archive"); + CmdArgs.push_back(TC.getCompilerRTArgString(Args, Sanitizer, IsShared)); + if (IsWhole) CmdArgs.push_back("-no-whole-archive"); + + if (IsShared) { + addArchSpecificRPath(TC, Args, CmdArgs); + } +} + +// Tries to use a file with the list of dynamic symbols that need to be exported +// from the runtime library. Returns true if the file was found. +static bool addSanitizerDynamicList(const ToolChain &TC, const ArgList &Args, + ArgStringList &CmdArgs, + StringRef Sanitizer) { + SmallString<128> SanRT(TC.getCompilerRT(Args, Sanitizer)); + if (llvm::sys::fs::exists(SanRT + ".syms")) { + CmdArgs.push_back(Args.MakeArgString("--dynamic-list=" + SanRT + ".syms")); + return true; + } + return false; +} + +void tools::linkSanitizerRuntimeDeps(const ToolChain &TC, + ArgStringList &CmdArgs) { + // Force linking against the system libraries sanitizers depends on + // (see PR15823 why this is necessary). + CmdArgs.push_back("--no-as-needed"); + // There's no libpthread or librt on RTEMS. + if (TC.getTriple().getOS() != llvm::Triple::RTEMS) { + CmdArgs.push_back("-lpthread"); + CmdArgs.push_back("-lrt"); + } + CmdArgs.push_back("-lm"); + // There's no libdl on FreeBSD or RTEMS. + if (TC.getTriple().getOS() != llvm::Triple::FreeBSD && + TC.getTriple().getOS() != llvm::Triple::NetBSD && + TC.getTriple().getOS() != llvm::Triple::RTEMS) + CmdArgs.push_back("-ldl"); +} + +static void +collectSanitizerRuntimes(const ToolChain &TC, const ArgList &Args, + SmallVectorImpl<StringRef> &SharedRuntimes, + SmallVectorImpl<StringRef> &StaticRuntimes, + SmallVectorImpl<StringRef> &NonWholeStaticRuntimes, + SmallVectorImpl<StringRef> &HelperStaticRuntimes, + SmallVectorImpl<StringRef> &RequiredSymbols) { + const SanitizerArgs &SanArgs = TC.getSanitizerArgs(); + // Collect shared runtimes. + if (SanArgs.needsAsanRt() && SanArgs.needsSharedAsanRt()) { + SharedRuntimes.push_back("asan"); + } + // The stats_client library is also statically linked into DSOs. + if (SanArgs.needsStatsRt()) + StaticRuntimes.push_back("stats_client"); + + // Collect static runtimes. + if (Args.hasArg(options::OPT_shared) || TC.getTriple().isAndroid()) { + // Don't link static runtimes into DSOs or if compiling for Android. + return; + } + if (SanArgs.needsAsanRt()) { + if (SanArgs.needsSharedAsanRt()) { + HelperStaticRuntimes.push_back("asan-preinit"); + } else { + StaticRuntimes.push_back("asan"); + if (SanArgs.linkCXXRuntimes()) + StaticRuntimes.push_back("asan_cxx"); + } + } + if (SanArgs.needsDfsanRt()) + StaticRuntimes.push_back("dfsan"); + if (SanArgs.needsLsanRt()) + StaticRuntimes.push_back("lsan"); + if (SanArgs.needsMsanRt()) { + StaticRuntimes.push_back("msan"); + if (SanArgs.linkCXXRuntimes()) + StaticRuntimes.push_back("msan_cxx"); + } + if (SanArgs.needsTsanRt()) { + StaticRuntimes.push_back("tsan"); + if (SanArgs.linkCXXRuntimes()) + StaticRuntimes.push_back("tsan_cxx"); + } + if (SanArgs.needsUbsanRt()) { + StaticRuntimes.push_back("ubsan_standalone"); + if (SanArgs.linkCXXRuntimes()) + StaticRuntimes.push_back("ubsan_standalone_cxx"); + } + if (SanArgs.needsSafeStackRt()) { + NonWholeStaticRuntimes.push_back("safestack"); + RequiredSymbols.push_back("__safestack_init"); + } + if (SanArgs.needsCfiRt()) + StaticRuntimes.push_back("cfi"); + if (SanArgs.needsCfiDiagRt()) { + StaticRuntimes.push_back("cfi_diag"); + if (SanArgs.linkCXXRuntimes()) + StaticRuntimes.push_back("ubsan_standalone_cxx"); + } + if (SanArgs.needsStatsRt()) { + NonWholeStaticRuntimes.push_back("stats"); + RequiredSymbols.push_back("__sanitizer_stats_register"); + } + if (SanArgs.needsEsanRt()) + StaticRuntimes.push_back("esan"); +} + +static void addLibFuzzerRuntime(const ToolChain &TC, + const ArgList &Args, + ArgStringList &CmdArgs) { + StringRef ParentDir = llvm::sys::path::parent_path(TC.getDriver().InstalledDir); + SmallString<128> P(ParentDir); + llvm::sys::path::append(P, "lib", "libLLVMFuzzer.a"); + CmdArgs.push_back(Args.MakeArgString(P)); + TC.AddCXXStdlibLibArgs(Args, CmdArgs); +} + + +// Should be called before we add system libraries (C++ ABI, libstdc++/libc++, +// C runtime, etc). Returns true if sanitizer system deps need to be linked in. +bool tools::addSanitizerRuntimes(const ToolChain &TC, const ArgList &Args, + ArgStringList &CmdArgs) { + SmallVector<StringRef, 4> SharedRuntimes, StaticRuntimes, + NonWholeStaticRuntimes, HelperStaticRuntimes, RequiredSymbols; + collectSanitizerRuntimes(TC, Args, SharedRuntimes, StaticRuntimes, + NonWholeStaticRuntimes, HelperStaticRuntimes, + RequiredSymbols); + // Inject libfuzzer dependencies. + if (TC.getSanitizerArgs().needsFuzzer() + && !Args.hasArg(options::OPT_shared)) { + addLibFuzzerRuntime(TC, Args, CmdArgs); + } + + for (auto RT : SharedRuntimes) + addSanitizerRuntime(TC, Args, CmdArgs, RT, true, false); + for (auto RT : HelperStaticRuntimes) + addSanitizerRuntime(TC, Args, CmdArgs, RT, false, true); + bool AddExportDynamic = false; + for (auto RT : StaticRuntimes) { + addSanitizerRuntime(TC, Args, CmdArgs, RT, false, true); + AddExportDynamic |= !addSanitizerDynamicList(TC, Args, CmdArgs, RT); + } + for (auto RT : NonWholeStaticRuntimes) { + addSanitizerRuntime(TC, Args, CmdArgs, RT, false, false); + AddExportDynamic |= !addSanitizerDynamicList(TC, Args, CmdArgs, RT); + } + for (auto S : RequiredSymbols) { + CmdArgs.push_back("-u"); + CmdArgs.push_back(Args.MakeArgString(S)); + } + // If there is a static runtime with no dynamic list, force all the symbols + // to be dynamic to be sure we export sanitizer interface functions. + if (AddExportDynamic) + CmdArgs.push_back("-export-dynamic"); + + const SanitizerArgs &SanArgs = TC.getSanitizerArgs(); + if (SanArgs.hasCrossDsoCfi() && !AddExportDynamic) + CmdArgs.push_back("-export-dynamic-symbol=__cfi_check"); + + return !StaticRuntimes.empty() || !NonWholeStaticRuntimes.empty(); +} + +bool tools::areOptimizationsEnabled(const ArgList &Args) { + // Find the last -O arg and see if it is non-zero. + if (Arg *A = Args.getLastArg(options::OPT_O_Group)) + return !A->getOption().matches(options::OPT_O0); + // Defaults to -O0. + return false; +} + +const char *tools::SplitDebugName(const ArgList &Args, const InputInfo &Input) { + Arg *FinalOutput = Args.getLastArg(options::OPT_o); + if (FinalOutput && Args.hasArg(options::OPT_c)) { + SmallString<128> T(FinalOutput->getValue()); + llvm::sys::path::replace_extension(T, "dwo"); + return Args.MakeArgString(T); + } else { + // Use the compilation dir. + SmallString<128> T( + Args.getLastArgValue(options::OPT_fdebug_compilation_dir)); + SmallString<128> F(llvm::sys::path::stem(Input.getBaseInput())); + llvm::sys::path::replace_extension(F, "dwo"); + T += F; + return Args.MakeArgString(F); + } +} + +void tools::SplitDebugInfo(const ToolChain &TC, Compilation &C, const Tool &T, + const JobAction &JA, const ArgList &Args, + const InputInfo &Output, const char *OutFile) { + ArgStringList ExtractArgs; + ExtractArgs.push_back("--extract-dwo"); + + ArgStringList StripArgs; + StripArgs.push_back("--strip-dwo"); + + // Grabbing the output of the earlier compile step. + StripArgs.push_back(Output.getFilename()); + ExtractArgs.push_back(Output.getFilename()); + ExtractArgs.push_back(OutFile); + + const char *Exec = Args.MakeArgString(TC.GetProgramPath("objcopy")); + InputInfo II(types::TY_Object, Output.getFilename(), Output.getFilename()); + + // First extract the dwo sections. + C.addCommand(llvm::make_unique<Command>(JA, T, Exec, ExtractArgs, II)); + + // Then remove them from the original .o file. + C.addCommand(llvm::make_unique<Command>(JA, T, Exec, StripArgs, II)); +} + +// Claim options we don't want to warn if they are unused. We do this for +// options that build systems might add but are unused when assembling or only +// running the preprocessor for example. +void tools::claimNoWarnArgs(const ArgList &Args) { + // Don't warn about unused -f(no-)?lto. This can happen when we're + // preprocessing, precompiling or assembling. + Args.ClaimAllArgs(options::OPT_flto_EQ); + Args.ClaimAllArgs(options::OPT_flto); + Args.ClaimAllArgs(options::OPT_fno_lto); +} + +Arg *tools::getLastProfileUseArg(const ArgList &Args) { + auto *ProfileUseArg = Args.getLastArg( + options::OPT_fprofile_instr_use, options::OPT_fprofile_instr_use_EQ, + options::OPT_fprofile_use, options::OPT_fprofile_use_EQ, + options::OPT_fno_profile_instr_use); + + if (ProfileUseArg && + ProfileUseArg->getOption().matches(options::OPT_fno_profile_instr_use)) + ProfileUseArg = nullptr; + + return ProfileUseArg; +} + +Arg *tools::getLastProfileSampleUseArg(const ArgList &Args) { + auto *ProfileSampleUseArg = Args.getLastArg( + options::OPT_fprofile_sample_use, options::OPT_fprofile_sample_use_EQ, + options::OPT_fauto_profile, options::OPT_fauto_profile_EQ, + options::OPT_fno_profile_sample_use, options::OPT_fno_auto_profile); + + if (ProfileSampleUseArg && + (ProfileSampleUseArg->getOption().matches( + options::OPT_fno_profile_sample_use) || + ProfileSampleUseArg->getOption().matches(options::OPT_fno_auto_profile))) + return nullptr; + + return Args.getLastArg(options::OPT_fprofile_sample_use_EQ, + options::OPT_fauto_profile_EQ); +} + +/// Parses the various -fpic/-fPIC/-fpie/-fPIE arguments. Then, +/// smooshes them together with platform defaults, to decide whether +/// this compile should be using PIC mode or not. Returns a tuple of +/// (RelocationModel, PICLevel, IsPIE). +std::tuple<llvm::Reloc::Model, unsigned, bool> +tools::ParsePICArgs(const ToolChain &ToolChain, const ArgList &Args) { + const llvm::Triple &EffectiveTriple = ToolChain.getEffectiveTriple(); + const llvm::Triple &Triple = ToolChain.getTriple(); + + bool PIE = ToolChain.isPIEDefault(); + bool PIC = PIE || ToolChain.isPICDefault(); + // The Darwin/MachO default to use PIC does not apply when using -static. + if (Triple.isOSBinFormatMachO() && Args.hasArg(options::OPT_static)) + PIE = PIC = false; + bool IsPICLevelTwo = PIC; + + bool KernelOrKext = + Args.hasArg(options::OPT_mkernel, options::OPT_fapple_kext); + + // Android-specific defaults for PIC/PIE + if (Triple.isAndroid()) { + switch (Triple.getArch()) { + case llvm::Triple::arm: + case llvm::Triple::armeb: + case llvm::Triple::thumb: + case llvm::Triple::thumbeb: + case llvm::Triple::aarch64: + case llvm::Triple::mips: + case llvm::Triple::mipsel: + case llvm::Triple::mips64: + case llvm::Triple::mips64el: + PIC = true; // "-fpic" + break; + + case llvm::Triple::x86: + case llvm::Triple::x86_64: + PIC = true; // "-fPIC" + IsPICLevelTwo = true; + break; + + default: + break; + } + } + + // OpenBSD-specific defaults for PIE + if (Triple.getOS() == llvm::Triple::OpenBSD) { + switch (ToolChain.getArch()) { + case llvm::Triple::arm: + case llvm::Triple::aarch64: + case llvm::Triple::mips64: + case llvm::Triple::mips64el: + case llvm::Triple::x86: + case llvm::Triple::x86_64: + IsPICLevelTwo = false; // "-fpie" + break; + + case llvm::Triple::ppc: + case llvm::Triple::sparc: + case llvm::Triple::sparcel: + case llvm::Triple::sparcv9: + IsPICLevelTwo = true; // "-fPIE" + break; + + default: + break; + } + } + + // The last argument relating to either PIC or PIE wins, and no + // other argument is used. If the last argument is any flavor of the + // '-fno-...' arguments, both PIC and PIE are disabled. Any PIE + // option implicitly enables PIC at the same level. + Arg *LastPICArg = Args.getLastArg(options::OPT_fPIC, options::OPT_fno_PIC, + options::OPT_fpic, options::OPT_fno_pic, + options::OPT_fPIE, options::OPT_fno_PIE, + options::OPT_fpie, options::OPT_fno_pie); + if (Triple.isOSWindows() && LastPICArg && + LastPICArg == + Args.getLastArg(options::OPT_fPIC, options::OPT_fpic, + options::OPT_fPIE, options::OPT_fpie)) { + ToolChain.getDriver().Diag(diag::err_drv_unsupported_opt_for_target) + << LastPICArg->getSpelling() << Triple.str(); + if (Triple.getArch() == llvm::Triple::x86_64) + return std::make_tuple(llvm::Reloc::PIC_, 2U, false); + return std::make_tuple(llvm::Reloc::Static, 0U, false); + } + + // Check whether the tool chain trumps the PIC-ness decision. If the PIC-ness + // is forced, then neither PIC nor PIE flags will have no effect. + if (!ToolChain.isPICDefaultForced()) { + if (LastPICArg) { + Option O = LastPICArg->getOption(); + if (O.matches(options::OPT_fPIC) || O.matches(options::OPT_fpic) || + O.matches(options::OPT_fPIE) || O.matches(options::OPT_fpie)) { + PIE = O.matches(options::OPT_fPIE) || O.matches(options::OPT_fpie); + PIC = + PIE || O.matches(options::OPT_fPIC) || O.matches(options::OPT_fpic); + IsPICLevelTwo = + O.matches(options::OPT_fPIE) || O.matches(options::OPT_fPIC); + } else { + PIE = PIC = false; + if (EffectiveTriple.isPS4CPU()) { + Arg *ModelArg = Args.getLastArg(options::OPT_mcmodel_EQ); + StringRef Model = ModelArg ? ModelArg->getValue() : ""; + if (Model != "kernel") { + PIC = true; + ToolChain.getDriver().Diag(diag::warn_drv_ps4_force_pic) + << LastPICArg->getSpelling(); + } + } + } + } + } + + // Introduce a Darwin and PS4-specific hack. If the default is PIC, but the + // PIC level would've been set to level 1, force it back to level 2 PIC + // instead. + if (PIC && (Triple.isOSDarwin() || EffectiveTriple.isPS4CPU())) + IsPICLevelTwo |= ToolChain.isPICDefault(); + + // This kernel flags are a trump-card: they will disable PIC/PIE + // generation, independent of the argument order. + if (KernelOrKext && + ((!EffectiveTriple.isiOS() || EffectiveTriple.isOSVersionLT(6)) && + !EffectiveTriple.isWatchOS())) + PIC = PIE = false; + + if (Arg *A = Args.getLastArg(options::OPT_mdynamic_no_pic)) { + // This is a very special mode. It trumps the other modes, almost no one + // uses it, and it isn't even valid on any OS but Darwin. + if (!Triple.isOSDarwin()) + ToolChain.getDriver().Diag(diag::err_drv_unsupported_opt_for_target) + << A->getSpelling() << Triple.str(); + + // FIXME: Warn when this flag trumps some other PIC or PIE flag. + + // Only a forced PIC mode can cause the actual compile to have PIC defines + // etc., no flags are sufficient. This behavior was selected to closely + // match that of llvm-gcc and Apple GCC before that. + PIC = ToolChain.isPICDefault() && ToolChain.isPICDefaultForced(); + + return std::make_tuple(llvm::Reloc::DynamicNoPIC, PIC ? 2U : 0U, false); + } + + bool EmbeddedPISupported; + switch (Triple.getArch()) { + case llvm::Triple::arm: + case llvm::Triple::armeb: + case llvm::Triple::thumb: + case llvm::Triple::thumbeb: + EmbeddedPISupported = true; + break; + default: + EmbeddedPISupported = false; + break; + } + + bool ROPI = false, RWPI = false; + Arg* LastROPIArg = Args.getLastArg(options::OPT_fropi, options::OPT_fno_ropi); + if (LastROPIArg && LastROPIArg->getOption().matches(options::OPT_fropi)) { + if (!EmbeddedPISupported) + ToolChain.getDriver().Diag(diag::err_drv_unsupported_opt_for_target) + << LastROPIArg->getSpelling() << Triple.str(); + ROPI = true; + } + Arg *LastRWPIArg = Args.getLastArg(options::OPT_frwpi, options::OPT_fno_rwpi); + if (LastRWPIArg && LastRWPIArg->getOption().matches(options::OPT_frwpi)) { + if (!EmbeddedPISupported) + ToolChain.getDriver().Diag(diag::err_drv_unsupported_opt_for_target) + << LastRWPIArg->getSpelling() << Triple.str(); + RWPI = true; + } + + // ROPI and RWPI are not comaptible with PIC or PIE. + if ((ROPI || RWPI) && (PIC || PIE)) + ToolChain.getDriver().Diag(diag::err_drv_ropi_rwpi_incompatible_with_pic); + + // When targettng MIPS64 with N64, the default is PIC, unless -mno-abicalls is + // used. + if ((Triple.getArch() == llvm::Triple::mips64 || + Triple.getArch() == llvm::Triple::mips64el) && + Args.hasArg(options::OPT_mno_abicalls)) + return std::make_tuple(llvm::Reloc::Static, 0U, false); + + if (PIC) + return std::make_tuple(llvm::Reloc::PIC_, IsPICLevelTwo ? 2U : 1U, PIE); + + llvm::Reloc::Model RelocM = llvm::Reloc::Static; + if (ROPI && RWPI) + RelocM = llvm::Reloc::ROPI_RWPI; + else if (ROPI) + RelocM = llvm::Reloc::ROPI; + else if (RWPI) + RelocM = llvm::Reloc::RWPI; + + return std::make_tuple(RelocM, 0U, false); +} + +void tools::AddAssemblerKPIC(const ToolChain &ToolChain, const ArgList &Args, + ArgStringList &CmdArgs) { + llvm::Reloc::Model RelocationModel; + unsigned PICLevel; + bool IsPIE; + std::tie(RelocationModel, PICLevel, IsPIE) = ParsePICArgs(ToolChain, Args); + + if (RelocationModel != llvm::Reloc::Static) + CmdArgs.push_back("-KPIC"); +} + +/// \brief Determine whether Objective-C automated reference counting is +/// enabled. +bool tools::isObjCAutoRefCount(const ArgList &Args) { + return Args.hasFlag(options::OPT_fobjc_arc, options::OPT_fno_objc_arc, false); +} + +static void AddLibgcc(const llvm::Triple &Triple, const Driver &D, + ArgStringList &CmdArgs, const ArgList &Args) { + bool isAndroid = Triple.isAndroid(); + bool isCygMing = Triple.isOSCygMing(); + bool IsIAMCU = Triple.isOSIAMCU(); + bool StaticLibgcc = Args.hasArg(options::OPT_static_libgcc) || + Args.hasArg(options::OPT_static); + if (!D.CCCIsCXX()) + CmdArgs.push_back("-lgcc"); + + if (StaticLibgcc || isAndroid) { + if (D.CCCIsCXX()) + CmdArgs.push_back("-lgcc"); + } else { + if (!D.CCCIsCXX() && !isCygMing) + CmdArgs.push_back("--as-needed"); + CmdArgs.push_back("-lgcc_s"); + if (!D.CCCIsCXX() && !isCygMing) + CmdArgs.push_back("--no-as-needed"); + } + + if (StaticLibgcc && !isAndroid && !IsIAMCU) + CmdArgs.push_back("-lgcc_eh"); + else if (!Args.hasArg(options::OPT_shared) && D.CCCIsCXX()) + CmdArgs.push_back("-lgcc"); + + // According to Android ABI, we have to link with libdl if we are + // linking with non-static libgcc. + // + // NOTE: This fixes a link error on Android MIPS as well. The non-static + // libgcc for MIPS relies on _Unwind_Find_FDE and dl_iterate_phdr from libdl. + if (isAndroid && !StaticLibgcc) + CmdArgs.push_back("-ldl"); +} + +void tools::AddRunTimeLibs(const ToolChain &TC, const Driver &D, + ArgStringList &CmdArgs, const ArgList &Args) { + // Make use of compiler-rt if --rtlib option is used + ToolChain::RuntimeLibType RLT = TC.GetRuntimeLibType(Args); + + switch (RLT) { + case ToolChain::RLT_CompilerRT: + switch (TC.getTriple().getOS()) { + default: + llvm_unreachable("unsupported OS"); + case llvm::Triple::Win32: + case llvm::Triple::Linux: + case llvm::Triple::Fuchsia: + CmdArgs.push_back(TC.getCompilerRTArgString(Args, "builtins")); + break; + } + break; + case ToolChain::RLT_Libgcc: + // Make sure libgcc is not used under MSVC environment by default + if (TC.getTriple().isKnownWindowsMSVCEnvironment()) { + // Issue error diagnostic if libgcc is explicitly specified + // through command line as --rtlib option argument. + if (Args.hasArg(options::OPT_rtlib_EQ)) { + TC.getDriver().Diag(diag::err_drv_unsupported_rtlib_for_platform) + << Args.getLastArg(options::OPT_rtlib_EQ)->getValue() << "MSVC"; + } + } else + AddLibgcc(TC.getTriple(), D, CmdArgs, Args); + break; + } +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/CommonArgs.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/CommonArgs.h new file mode 100644 index 0000000..fdeb666 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/CommonArgs.h @@ -0,0 +1,98 @@ +//===--- CommonArgs.h - Args handling for multiple toolchains ---*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_COMMONARGS_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_COMMONARGS_H + +#include "InputInfo.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" +#include "llvm/Support/CodeGen.h" + +namespace clang { +namespace driver { +namespace tools { + +void addPathIfExists(const Driver &D, const Twine &Path, + ToolChain::path_list &Paths); + +void AddLinkerInputs(const ToolChain &TC, const InputInfoList &Inputs, + const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs, const JobAction &JA); + +void claimNoWarnArgs(const llvm::opt::ArgList &Args); + +bool addSanitizerRuntimes(const ToolChain &TC, const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs); + +void linkSanitizerRuntimeDeps(const ToolChain &TC, + llvm::opt::ArgStringList &CmdArgs); + +void AddRunTimeLibs(const ToolChain &TC, const Driver &D, + llvm::opt::ArgStringList &CmdArgs, + const llvm::opt::ArgList &Args); + +const char *SplitDebugName(const llvm::opt::ArgList &Args, + const InputInfo &Input); + +void SplitDebugInfo(const ToolChain &TC, Compilation &C, const Tool &T, + const JobAction &JA, const llvm::opt::ArgList &Args, + const InputInfo &Output, const char *OutFile); + +void AddGoldPlugin(const ToolChain &ToolChain, const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs, bool IsThinLTO, + const Driver &D); + +std::tuple<llvm::Reloc::Model, unsigned, bool> +ParsePICArgs(const ToolChain &ToolChain, const llvm::opt::ArgList &Args); + +void AddAssemblerKPIC(const ToolChain &ToolChain, + const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs); + +void addArchSpecificRPath(const ToolChain &TC, const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs); +/// Returns true, if an OpenMP runtime has been added. +bool addOpenMPRuntime(llvm::opt::ArgStringList &CmdArgs, const ToolChain &TC, + const llvm::opt::ArgList &Args, + bool IsOffloadingHost = false, bool GompNeedsRT = false); + +llvm::opt::Arg *getLastProfileUseArg(const llvm::opt::ArgList &Args); +llvm::opt::Arg *getLastProfileSampleUseArg(const llvm::opt::ArgList &Args); + +bool isObjCAutoRefCount(const llvm::opt::ArgList &Args); + +unsigned getLTOParallelism(const llvm::opt::ArgList &Args, const Driver &D); + +bool areOptimizationsEnabled(const llvm::opt::ArgList &Args); + +bool isUseSeparateSections(const llvm::Triple &Triple); + +void addDirectoryList(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs, const char *ArgName, + const char *EnvVar); + +void AddTargetFeature(const llvm::opt::ArgList &Args, + std::vector<StringRef> &Features, + llvm::opt::OptSpecifier OnOpt, + llvm::opt::OptSpecifier OffOpt, StringRef FeatureName); + +std::string getCPUName(const llvm::opt::ArgList &Args, const llvm::Triple &T, + bool FromAs = false); + +void handleTargetFeaturesGroup(const llvm::opt::ArgList &Args, + std::vector<StringRef> &Features, + llvm::opt::OptSpecifier Group); + +} // end namespace tools +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_COMMONARGS_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Contiki.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Contiki.cpp new file mode 100644 index 0000000..7f74bfc --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Contiki.cpp @@ -0,0 +1,28 @@ +//===--- Contiki.cpp - Contiki ToolChain Implementations --------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "Contiki.h" +#include "CommonArgs.h" + +using namespace clang::driver; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +Contiki::Contiki(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : Generic_ELF(D, Triple, Args) {} + +SanitizerMask Contiki::getSupportedSanitizers() const { + const bool IsX86 = getTriple().getArch() == llvm::Triple::x86; + SanitizerMask Res = ToolChain::getSupportedSanitizers(); + if (IsX86) + Res |= SanitizerKind::SafeStack; + return Res; +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Contiki.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Contiki.h new file mode 100644 index 0000000..f6e1507 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Contiki.h @@ -0,0 +1,38 @@ +//===--- Contiki.h - Contiki ToolChain Implementations ----------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_CONTIKI_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_CONTIKI_H + +#include "Gnu.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY Contiki : public Generic_ELF { +public: + Contiki(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + + // No support for finding a C++ standard library yet. + std::string findLibCxxIncludePath() const override { return ""; } + void addLibStdCxxIncludePaths( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override {} + + SanitizerMask getSupportedSanitizers() const override; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_CONTIKI_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/CrossWindows.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/CrossWindows.cpp new file mode 100644 index 0000000..04b71c4 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/CrossWindows.cpp @@ -0,0 +1,315 @@ +//===--- CrossWindowsToolChain.cpp - Cross Windows Tool Chain -------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "CrossWindows.h" +#include "CommonArgs.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/Options.h" +#include "clang/Driver/SanitizerArgs.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Support/Path.h" + +using namespace clang::driver; +using namespace clang::driver::toolchains; + +using llvm::opt::ArgList; + +void tools::CrossWindows::Assembler::ConstructJob( + Compilation &C, const JobAction &JA, const InputInfo &Output, + const InputInfoList &Inputs, const ArgList &Args, + const char *LinkingOutput) const { + claimNoWarnArgs(Args); + const auto &TC = + static_cast<const toolchains::CrossWindowsToolChain &>(getToolChain()); + ArgStringList CmdArgs; + const char *Exec; + + switch (TC.getArch()) { + default: + llvm_unreachable("unsupported architecture"); + case llvm::Triple::arm: + case llvm::Triple::thumb: + break; + case llvm::Triple::x86: + CmdArgs.push_back("--32"); + break; + case llvm::Triple::x86_64: + CmdArgs.push_back("--64"); + break; + } + + Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + for (const auto &Input : Inputs) + CmdArgs.push_back(Input.getFilename()); + + const std::string Assembler = TC.GetProgramPath("as"); + Exec = Args.MakeArgString(Assembler); + + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +void tools::CrossWindows::Linker::ConstructJob( + Compilation &C, const JobAction &JA, const InputInfo &Output, + const InputInfoList &Inputs, const ArgList &Args, + const char *LinkingOutput) const { + const auto &TC = + static_cast<const toolchains::CrossWindowsToolChain &>(getToolChain()); + const llvm::Triple &T = TC.getTriple(); + const Driver &D = TC.getDriver(); + SmallString<128> EntryPoint; + ArgStringList CmdArgs; + const char *Exec; + + // Silence warning for "clang -g foo.o -o foo" + Args.ClaimAllArgs(options::OPT_g_Group); + // and "clang -emit-llvm foo.o -o foo" + Args.ClaimAllArgs(options::OPT_emit_llvm); + // and for "clang -w foo.o -o foo" + Args.ClaimAllArgs(options::OPT_w); + // Other warning options are already handled somewhere else. + + if (!D.SysRoot.empty()) + CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); + + if (Args.hasArg(options::OPT_pie)) + CmdArgs.push_back("-pie"); + if (Args.hasArg(options::OPT_rdynamic)) + CmdArgs.push_back("-export-dynamic"); + if (Args.hasArg(options::OPT_s)) + CmdArgs.push_back("--strip-all"); + + CmdArgs.push_back("-m"); + switch (TC.getArch()) { + default: + llvm_unreachable("unsupported architecture"); + case llvm::Triple::arm: + case llvm::Triple::thumb: + // FIXME: this is incorrect for WinCE + CmdArgs.push_back("thumb2pe"); + break; + case llvm::Triple::x86: + CmdArgs.push_back("i386pe"); + EntryPoint.append("_"); + break; + case llvm::Triple::x86_64: + CmdArgs.push_back("i386pep"); + break; + } + + if (Args.hasArg(options::OPT_shared)) { + switch (T.getArch()) { + default: + llvm_unreachable("unsupported architecture"); + case llvm::Triple::arm: + case llvm::Triple::thumb: + case llvm::Triple::x86_64: + EntryPoint.append("_DllMainCRTStartup"); + break; + case llvm::Triple::x86: + EntryPoint.append("_DllMainCRTStartup@12"); + break; + } + + CmdArgs.push_back("-shared"); + CmdArgs.push_back("-Bdynamic"); + + CmdArgs.push_back("--enable-auto-image-base"); + + CmdArgs.push_back("--entry"); + CmdArgs.push_back(Args.MakeArgString(EntryPoint)); + } else { + EntryPoint.append("mainCRTStartup"); + + CmdArgs.push_back(Args.hasArg(options::OPT_static) ? "-Bstatic" + : "-Bdynamic"); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + CmdArgs.push_back("--entry"); + CmdArgs.push_back(Args.MakeArgString(EntryPoint)); + } + + // FIXME: handle subsystem + } + + // NOTE: deal with multiple definitions on Windows (e.g. COMDAT) + CmdArgs.push_back("--allow-multiple-definition"); + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_rdynamic)) { + SmallString<261> ImpLib(Output.getFilename()); + llvm::sys::path::replace_extension(ImpLib, ".lib"); + + CmdArgs.push_back("--out-implib"); + CmdArgs.push_back(Args.MakeArgString(ImpLib)); + } + + Args.AddAllArgs(CmdArgs, options::OPT_L); + TC.AddFilePathLibArgs(Args, CmdArgs); + AddLinkerInputs(TC, Inputs, Args, CmdArgs, JA); + + if (D.CCCIsCXX() && !Args.hasArg(options::OPT_nostdlib) && + !Args.hasArg(options::OPT_nodefaultlibs)) { + bool StaticCXX = Args.hasArg(options::OPT_static_libstdcxx) && + !Args.hasArg(options::OPT_static); + if (StaticCXX) + CmdArgs.push_back("-Bstatic"); + TC.AddCXXStdlibLibArgs(Args, CmdArgs); + if (StaticCXX) + CmdArgs.push_back("-Bdynamic"); + } + + if (!Args.hasArg(options::OPT_nostdlib)) { + if (!Args.hasArg(options::OPT_nodefaultlibs)) { + // TODO handle /MT[d] /MD[d] + CmdArgs.push_back("-lmsvcrt"); + AddRunTimeLibs(TC, D, CmdArgs, Args); + } + } + + if (TC.getSanitizerArgs().needsAsanRt()) { + // TODO handle /MT[d] /MD[d] + if (Args.hasArg(options::OPT_shared)) { + CmdArgs.push_back(TC.getCompilerRTArgString(Args, "asan_dll_thunk")); + } else { + for (const auto &Lib : {"asan_dynamic", "asan_dynamic_runtime_thunk"}) + CmdArgs.push_back(TC.getCompilerRTArgString(Args, Lib)); + // Make sure the dynamic runtime thunk is not optimized out at link time + // to ensure proper SEH handling. + CmdArgs.push_back(Args.MakeArgString("--undefined")); + CmdArgs.push_back(Args.MakeArgString(TC.getArch() == llvm::Triple::x86 + ? "___asan_seh_interceptor" + : "__asan_seh_interceptor")); + } + } + + Exec = Args.MakeArgString(TC.GetLinkerPath()); + + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +CrossWindowsToolChain::CrossWindowsToolChain(const Driver &D, + const llvm::Triple &T, + const llvm::opt::ArgList &Args) + : Generic_GCC(D, T, Args) { + if (D.CCCIsCXX() && GetCXXStdlibType(Args) == ToolChain::CST_Libstdcxx) { + const std::string &SysRoot = D.SysRoot; + + // libstdc++ resides in /usr/lib, but depends on libgcc which is placed in + // /usr/lib/gcc. + getFilePaths().push_back(SysRoot + "/usr/lib"); + getFilePaths().push_back(SysRoot + "/usr/lib/gcc"); + } +} + +bool CrossWindowsToolChain::IsUnwindTablesDefault(const ArgList &Args) const { + // FIXME: all non-x86 targets need unwind tables, however, LLVM currently does + // not know how to emit them. + return getArch() == llvm::Triple::x86_64; +} + +bool CrossWindowsToolChain::isPICDefault() const { + return getArch() == llvm::Triple::x86_64; +} + +bool CrossWindowsToolChain::isPIEDefault() const { + return getArch() == llvm::Triple::x86_64; +} + +bool CrossWindowsToolChain::isPICDefaultForced() const { + return getArch() == llvm::Triple::x86_64; +} + +void CrossWindowsToolChain:: +AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const { + const Driver &D = getDriver(); + const std::string &SysRoot = D.SysRoot; + + auto AddSystemAfterIncludes = [&]() { + for (const auto &P : DriverArgs.getAllArgValues(options::OPT_isystem_after)) + addSystemInclude(DriverArgs, CC1Args, P); + }; + + if (DriverArgs.hasArg(options::OPT_nostdinc)) { + AddSystemAfterIncludes(); + return; + } + + addSystemInclude(DriverArgs, CC1Args, SysRoot + "/usr/local/include"); + if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) { + SmallString<128> ResourceDir(D.ResourceDir); + llvm::sys::path::append(ResourceDir, "include"); + addSystemInclude(DriverArgs, CC1Args, ResourceDir); + } + AddSystemAfterIncludes(); + addExternCSystemInclude(DriverArgs, CC1Args, SysRoot + "/usr/include"); +} + +void CrossWindowsToolChain:: +AddClangCXXStdlibIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const { + const llvm::Triple &Triple = getTriple(); + const std::string &SysRoot = getDriver().SysRoot; + + if (DriverArgs.hasArg(options::OPT_nostdinc) || + DriverArgs.hasArg(options::OPT_nostdincxx)) + return; + + switch (GetCXXStdlibType(DriverArgs)) { + case ToolChain::CST_Libcxx: + addSystemInclude(DriverArgs, CC1Args, SysRoot + "/usr/include/c++/v1"); + break; + + case ToolChain::CST_Libstdcxx: + addSystemInclude(DriverArgs, CC1Args, SysRoot + "/usr/include/c++"); + addSystemInclude(DriverArgs, CC1Args, + SysRoot + "/usr/include/c++/" + Triple.str()); + addSystemInclude(DriverArgs, CC1Args, + SysRoot + "/usr/include/c++/backwards"); + } +} + +void CrossWindowsToolChain:: +AddCXXStdlibLibArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const { + switch (GetCXXStdlibType(DriverArgs)) { + case ToolChain::CST_Libcxx: + CC1Args.push_back("-lc++"); + break; + case ToolChain::CST_Libstdcxx: + CC1Args.push_back("-lstdc++"); + CC1Args.push_back("-lmingw32"); + CC1Args.push_back("-lmingwex"); + CC1Args.push_back("-lgcc"); + CC1Args.push_back("-lmoldname"); + CC1Args.push_back("-lmingw32"); + break; + } +} + +clang::SanitizerMask CrossWindowsToolChain::getSupportedSanitizers() const { + SanitizerMask Res = ToolChain::getSupportedSanitizers(); + Res |= SanitizerKind::Address; + return Res; +} + +Tool *CrossWindowsToolChain::buildLinker() const { + return new tools::CrossWindows::Linker(*this); +} + +Tool *CrossWindowsToolChain::buildAssembler() const { + return new tools::CrossWindows::Assembler(*this); +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/CrossWindows.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/CrossWindows.h new file mode 100644 index 0000000..2f66446 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/CrossWindows.h @@ -0,0 +1,88 @@ +//===--- CrossWindows.h - CrossWindows ToolChain Implementation -*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_CROSSWINDOWS_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_CROSSWINDOWS_H + +#include "Cuda.h" +#include "Gnu.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace tools { + +namespace CrossWindows { +class LLVM_LIBRARY_VISIBILITY Assembler : public Tool { +public: + Assembler(const ToolChain &TC) : Tool("CrossWindows::Assembler", "as", TC) {} + + bool hasIntegratedCPP() const override { return false; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +class LLVM_LIBRARY_VISIBILITY Linker : public Tool { +public: + Linker(const ToolChain &TC) + : Tool("CrossWindows::Linker", "ld", TC, RF_Full) {} + + bool hasIntegratedCPP() const override { return false; } + bool isLinkJob() const override { return true; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; +} // end namespace CrossWindows +} // end namespace tools + +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY CrossWindowsToolChain : public Generic_GCC { +public: + CrossWindowsToolChain(const Driver &D, const llvm::Triple &T, + const llvm::opt::ArgList &Args); + + bool IsIntegratedAssemblerDefault() const override { return true; } + bool IsUnwindTablesDefault(const llvm::opt::ArgList &Args) const override; + bool isPICDefault() const override; + bool isPIEDefault() const override; + bool isPICDefaultForced() const override; + + unsigned int GetDefaultStackProtectorLevel(bool KernelOrKext) const override { + return 0; + } + + void + AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + void AddClangCXXStdlibIncludeArgs( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + void AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const override; + + SanitizerMask getSupportedSanitizers() const override; + +protected: + Tool *buildLinker() const override; + Tool *buildAssembler() const override; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_CROSSWINDOWS_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Cuda.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Cuda.cpp new file mode 100644 index 0000000..935a5a3 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Cuda.cpp @@ -0,0 +1,513 @@ +//===--- Cuda.cpp - Cuda Tool and ToolChain Implementations -----*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "Cuda.h" +#include "InputInfo.h" +#include "clang/Basic/Cuda.h" +#include "clang/Basic/VirtualFileSystem.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Options.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Support/Path.h" +#include <system_error> + +using namespace clang::driver; +using namespace clang::driver::toolchains; +using namespace clang::driver::tools; +using namespace clang; +using namespace llvm::opt; + +// Parses the contents of version.txt in an CUDA installation. It should +// contain one line of the from e.g. "CUDA Version 7.5.2". +static CudaVersion ParseCudaVersionFile(llvm::StringRef V) { + if (!V.startswith("CUDA Version ")) + return CudaVersion::UNKNOWN; + V = V.substr(strlen("CUDA Version ")); + int Major = -1, Minor = -1; + auto First = V.split('.'); + auto Second = First.second.split('.'); + if (First.first.getAsInteger(10, Major) || + Second.first.getAsInteger(10, Minor)) + return CudaVersion::UNKNOWN; + + if (Major == 7 && Minor == 0) { + // This doesn't appear to ever happen -- version.txt doesn't exist in the + // CUDA 7 installs I've seen. But no harm in checking. + return CudaVersion::CUDA_70; + } + if (Major == 7 && Minor == 5) + return CudaVersion::CUDA_75; + if (Major == 8 && Minor == 0) + return CudaVersion::CUDA_80; + return CudaVersion::UNKNOWN; +} + +CudaInstallationDetector::CudaInstallationDetector( + const Driver &D, const llvm::Triple &HostTriple, + const llvm::opt::ArgList &Args) + : D(D) { + SmallVector<std::string, 4> CudaPathCandidates; + + // In decreasing order so we prefer newer versions to older versions. + std::initializer_list<const char *> Versions = {"8.0", "7.5", "7.0"}; + + if (Args.hasArg(clang::driver::options::OPT_cuda_path_EQ)) { + CudaPathCandidates.push_back( + Args.getLastArgValue(clang::driver::options::OPT_cuda_path_EQ)); + } else if (HostTriple.isOSWindows()) { + for (const char *Ver : Versions) + CudaPathCandidates.push_back( + D.SysRoot + "/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v" + + Ver); + } else { + CudaPathCandidates.push_back(D.SysRoot + "/usr/local/cuda"); + for (const char *Ver : Versions) + CudaPathCandidates.push_back(D.SysRoot + "/usr/local/cuda-" + Ver); + } + + for (const auto &CudaPath : CudaPathCandidates) { + if (CudaPath.empty() || !D.getVFS().exists(CudaPath)) + continue; + + InstallPath = CudaPath; + BinPath = CudaPath + "/bin"; + IncludePath = InstallPath + "/include"; + LibDevicePath = InstallPath + "/nvvm/libdevice"; + + auto &FS = D.getVFS(); + if (!(FS.exists(IncludePath) && FS.exists(BinPath) && + FS.exists(LibDevicePath))) + continue; + + // On Linux, we have both lib and lib64 directories, and we need to choose + // based on our triple. On MacOS, we have only a lib directory. + // + // It's sufficient for our purposes to be flexible: If both lib and lib64 + // exist, we choose whichever one matches our triple. Otherwise, if only + // lib exists, we use it. + if (HostTriple.isArch64Bit() && FS.exists(InstallPath + "/lib64")) + LibPath = InstallPath + "/lib64"; + else if (FS.exists(InstallPath + "/lib")) + LibPath = InstallPath + "/lib"; + else + continue; + + llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> VersionFile = + FS.getBufferForFile(InstallPath + "/version.txt"); + if (!VersionFile) { + // CUDA 7.0 doesn't have a version.txt, so guess that's our version if + // version.txt isn't present. + Version = CudaVersion::CUDA_70; + } else { + Version = ParseCudaVersionFile((*VersionFile)->getBuffer()); + } + + std::error_code EC; + for (llvm::sys::fs::directory_iterator LI(LibDevicePath, EC), LE; + !EC && LI != LE; LI = LI.increment(EC)) { + StringRef FilePath = LI->path(); + StringRef FileName = llvm::sys::path::filename(FilePath); + // Process all bitcode filenames that look like libdevice.compute_XX.YY.bc + const StringRef LibDeviceName = "libdevice."; + if (!(FileName.startswith(LibDeviceName) && FileName.endswith(".bc"))) + continue; + StringRef GpuArch = FileName.slice( + LibDeviceName.size(), FileName.find('.', LibDeviceName.size())); + LibDeviceMap[GpuArch] = FilePath.str(); + // Insert map entries for specifc devices with this compute + // capability. NVCC's choice of the libdevice library version is + // rather peculiar and depends on the CUDA version. + if (GpuArch == "compute_20") { + LibDeviceMap["sm_20"] = FilePath; + LibDeviceMap["sm_21"] = FilePath; + LibDeviceMap["sm_32"] = FilePath; + } else if (GpuArch == "compute_30") { + LibDeviceMap["sm_30"] = FilePath; + if (Version < CudaVersion::CUDA_80) { + LibDeviceMap["sm_50"] = FilePath; + LibDeviceMap["sm_52"] = FilePath; + LibDeviceMap["sm_53"] = FilePath; + } + LibDeviceMap["sm_60"] = FilePath; + LibDeviceMap["sm_61"] = FilePath; + LibDeviceMap["sm_62"] = FilePath; + } else if (GpuArch == "compute_35") { + LibDeviceMap["sm_35"] = FilePath; + LibDeviceMap["sm_37"] = FilePath; + } else if (GpuArch == "compute_50") { + if (Version >= CudaVersion::CUDA_80) { + LibDeviceMap["sm_50"] = FilePath; + LibDeviceMap["sm_52"] = FilePath; + LibDeviceMap["sm_53"] = FilePath; + } + } + } + + IsValid = true; + break; + } +} + +void CudaInstallationDetector::AddCudaIncludeArgs( + const ArgList &DriverArgs, ArgStringList &CC1Args) const { + if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) { + // Add cuda_wrappers/* to our system include path. This lets us wrap + // standard library headers. + SmallString<128> P(D.ResourceDir); + llvm::sys::path::append(P, "include"); + llvm::sys::path::append(P, "cuda_wrappers"); + CC1Args.push_back("-internal-isystem"); + CC1Args.push_back(DriverArgs.MakeArgString(P)); + } + + if (DriverArgs.hasArg(options::OPT_nocudainc)) + return; + + if (!isValid()) { + D.Diag(diag::err_drv_no_cuda_installation); + return; + } + + CC1Args.push_back("-internal-isystem"); + CC1Args.push_back(DriverArgs.MakeArgString(getIncludePath())); + CC1Args.push_back("-include"); + CC1Args.push_back("__clang_cuda_runtime_wrapper.h"); +} + +void CudaInstallationDetector::CheckCudaVersionSupportsArch( + CudaArch Arch) const { + if (Arch == CudaArch::UNKNOWN || Version == CudaVersion::UNKNOWN || + ArchsWithVersionTooLowErrors.count(Arch) > 0) + return; + + auto RequiredVersion = MinVersionForCudaArch(Arch); + if (Version < RequiredVersion) { + ArchsWithVersionTooLowErrors.insert(Arch); + D.Diag(diag::err_drv_cuda_version_too_low) + << InstallPath << CudaArchToString(Arch) << CudaVersionToString(Version) + << CudaVersionToString(RequiredVersion); + } +} + +void CudaInstallationDetector::print(raw_ostream &OS) const { + if (isValid()) + OS << "Found CUDA installation: " << InstallPath << ", version " + << CudaVersionToString(Version) << "\n"; +} + +void NVPTX::Assembler::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + const auto &TC = + static_cast<const toolchains::CudaToolChain &>(getToolChain()); + assert(TC.getTriple().isNVPTX() && "Wrong platform"); + + // Obtain architecture from the action. + CudaArch gpu_arch = StringToCudaArch(JA.getOffloadingArch()); + assert(gpu_arch != CudaArch::UNKNOWN && + "Device action expected to have an architecture."); + + // Check that our installation's ptxas supports gpu_arch. + if (!Args.hasArg(options::OPT_no_cuda_version_check)) { + TC.CudaInstallation.CheckCudaVersionSupportsArch(gpu_arch); + } + + ArgStringList CmdArgs; + CmdArgs.push_back(TC.getTriple().isArch64Bit() ? "-m64" : "-m32"); + if (Args.hasFlag(options::OPT_cuda_noopt_device_debug, + options::OPT_no_cuda_noopt_device_debug, false)) { + // ptxas does not accept -g option if optimization is enabled, so + // we ignore the compiler's -O* options if we want debug info. + CmdArgs.push_back("-g"); + CmdArgs.push_back("--dont-merge-basicblocks"); + CmdArgs.push_back("--return-at-end"); + } else if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { + // Map the -O we received to -O{0,1,2,3}. + // + // TODO: Perhaps we should map host -O2 to ptxas -O3. -O3 is ptxas's + // default, so it may correspond more closely to the spirit of clang -O2. + + // -O3 seems like the least-bad option when -Osomething is specified to + // clang but it isn't handled below. + StringRef OOpt = "3"; + if (A->getOption().matches(options::OPT_O4) || + A->getOption().matches(options::OPT_Ofast)) + OOpt = "3"; + else if (A->getOption().matches(options::OPT_O0)) + OOpt = "0"; + else if (A->getOption().matches(options::OPT_O)) { + // -Os, -Oz, and -O(anything else) map to -O2, for lack of better options. + OOpt = llvm::StringSwitch<const char *>(A->getValue()) + .Case("1", "1") + .Case("2", "2") + .Case("3", "3") + .Case("s", "2") + .Case("z", "2") + .Default("2"); + } + CmdArgs.push_back(Args.MakeArgString(llvm::Twine("-O") + OOpt)); + } else { + // If no -O was passed, pass -O0 to ptxas -- no opt flag should correspond + // to no optimizations, but ptxas's default is -O3. + CmdArgs.push_back("-O0"); + } + + CmdArgs.push_back("--gpu-name"); + CmdArgs.push_back(Args.MakeArgString(CudaArchToString(gpu_arch))); + CmdArgs.push_back("--output-file"); + CmdArgs.push_back(Args.MakeArgString(Output.getFilename())); + for (const auto& II : Inputs) + CmdArgs.push_back(Args.MakeArgString(II.getFilename())); + + for (const auto& A : Args.getAllArgValues(options::OPT_Xcuda_ptxas)) + CmdArgs.push_back(Args.MakeArgString(A)); + + const char *Exec; + if (Arg *A = Args.getLastArg(options::OPT_ptxas_path_EQ)) + Exec = A->getValue(); + else + Exec = Args.MakeArgString(TC.GetProgramPath("ptxas")); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +// All inputs to this linker must be from CudaDeviceActions, as we need to look +// at the Inputs' Actions in order to figure out which GPU architecture they +// correspond to. +void NVPTX::Linker::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + const auto &TC = + static_cast<const toolchains::CudaToolChain &>(getToolChain()); + assert(TC.getTriple().isNVPTX() && "Wrong platform"); + + ArgStringList CmdArgs; + CmdArgs.push_back("--cuda"); + CmdArgs.push_back(TC.getTriple().isArch64Bit() ? "-64" : "-32"); + CmdArgs.push_back(Args.MakeArgString("--create")); + CmdArgs.push_back(Args.MakeArgString(Output.getFilename())); + + for (const auto& II : Inputs) { + auto *A = II.getAction(); + assert(A->getInputs().size() == 1 && + "Device offload action is expected to have a single input"); + const char *gpu_arch_str = A->getOffloadingArch(); + assert(gpu_arch_str && + "Device action expected to have associated a GPU architecture!"); + CudaArch gpu_arch = StringToCudaArch(gpu_arch_str); + + // We need to pass an Arch of the form "sm_XX" for cubin files and + // "compute_XX" for ptx. + const char *Arch = + (II.getType() == types::TY_PP_Asm) + ? CudaVirtualArchToString(VirtualArchForCudaArch(gpu_arch)) + : gpu_arch_str; + CmdArgs.push_back(Args.MakeArgString(llvm::Twine("--image=profile=") + + Arch + ",file=" + II.getFilename())); + } + + for (const auto& A : Args.getAllArgValues(options::OPT_Xcuda_fatbinary)) + CmdArgs.push_back(Args.MakeArgString(A)); + + const char *Exec = Args.MakeArgString(TC.GetProgramPath("fatbinary")); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +/// CUDA toolchain. Our assembler is ptxas, and our "linker" is fatbinary, +/// which isn't properly a linker but nonetheless performs the step of stitching +/// together object files from the assembler into a single blob. + +CudaToolChain::CudaToolChain(const Driver &D, const llvm::Triple &Triple, + const ToolChain &HostTC, const ArgList &Args) + : ToolChain(D, Triple, Args), HostTC(HostTC), + CudaInstallation(D, HostTC.getTriple(), Args) { + if (CudaInstallation.isValid()) + getProgramPaths().push_back(CudaInstallation.getBinPath()); +} + +void CudaToolChain::addClangTargetOptions( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args, + Action::OffloadKind DeviceOffloadingKind) const { + HostTC.addClangTargetOptions(DriverArgs, CC1Args, DeviceOffloadingKind); + + StringRef GpuArch = DriverArgs.getLastArgValue(options::OPT_march_EQ); + assert(!GpuArch.empty() && "Must have an explicit GPU arch."); + assert((DeviceOffloadingKind == Action::OFK_OpenMP || + DeviceOffloadingKind == Action::OFK_Cuda) && + "Only OpenMP or CUDA offloading kinds are supported for NVIDIA GPUs."); + + if (DeviceOffloadingKind == Action::OFK_Cuda) { + CC1Args.push_back("-fcuda-is-device"); + + if (DriverArgs.hasFlag(options::OPT_fcuda_flush_denormals_to_zero, + options::OPT_fno_cuda_flush_denormals_to_zero, false)) + CC1Args.push_back("-fcuda-flush-denormals-to-zero"); + + if (DriverArgs.hasFlag(options::OPT_fcuda_approx_transcendentals, + options::OPT_fno_cuda_approx_transcendentals, false)) + CC1Args.push_back("-fcuda-approx-transcendentals"); + + if (DriverArgs.hasArg(options::OPT_nocudalib)) + return; + } + + std::string LibDeviceFile = CudaInstallation.getLibDeviceFile(GpuArch); + + if (LibDeviceFile.empty()) { + getDriver().Diag(diag::err_drv_no_cuda_libdevice) << GpuArch; + return; + } + + CC1Args.push_back("-mlink-cuda-bitcode"); + CC1Args.push_back(DriverArgs.MakeArgString(LibDeviceFile)); + + // Libdevice in CUDA-7.0 requires PTX version that's more recent + // than LLVM defaults to. Use PTX4.2 which is the PTX version that + // came with CUDA-7.0. + CC1Args.push_back("-target-feature"); + CC1Args.push_back("+ptx42"); +} + +void CudaToolChain::AddCudaIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + // Check our CUDA version if we're going to include the CUDA headers. + if (!DriverArgs.hasArg(options::OPT_nocudainc) && + !DriverArgs.hasArg(options::OPT_no_cuda_version_check)) { + StringRef Arch = DriverArgs.getLastArgValue(options::OPT_march_EQ); + assert(!Arch.empty() && "Must have an explicit GPU arch."); + CudaInstallation.CheckCudaVersionSupportsArch(StringToCudaArch(Arch)); + } + CudaInstallation.AddCudaIncludeArgs(DriverArgs, CC1Args); +} + +llvm::opt::DerivedArgList * +CudaToolChain::TranslateArgs(const llvm::opt::DerivedArgList &Args, + StringRef BoundArch, + Action::OffloadKind DeviceOffloadKind) const { + DerivedArgList *DAL = + HostTC.TranslateArgs(Args, BoundArch, DeviceOffloadKind); + if (!DAL) + DAL = new DerivedArgList(Args.getBaseArgs()); + + const OptTable &Opts = getDriver().getOpts(); + + // For OpenMP device offloading, append derived arguments. Make sure + // flags are not duplicated. + // TODO: Append the compute capability. + if (DeviceOffloadKind == Action::OFK_OpenMP) { + for (Arg *A : Args){ + bool IsDuplicate = false; + for (Arg *DALArg : *DAL){ + if (A == DALArg) { + IsDuplicate = true; + break; + } + } + if (!IsDuplicate) + DAL->append(A); + } + return DAL; + } + + for (Arg *A : Args) { + if (A->getOption().matches(options::OPT_Xarch__)) { + // Skip this argument unless the architecture matches BoundArch + if (BoundArch.empty() || A->getValue(0) != BoundArch) + continue; + + unsigned Index = Args.getBaseArgs().MakeIndex(A->getValue(1)); + unsigned Prev = Index; + std::unique_ptr<Arg> XarchArg(Opts.ParseOneArg(Args, Index)); + + // If the argument parsing failed or more than one argument was + // consumed, the -Xarch_ argument's parameter tried to consume + // extra arguments. Emit an error and ignore. + // + // We also want to disallow any options which would alter the + // driver behavior; that isn't going to work in our model. We + // use isDriverOption() as an approximation, although things + // like -O4 are going to slip through. + if (!XarchArg || Index > Prev + 1) { + getDriver().Diag(diag::err_drv_invalid_Xarch_argument_with_args) + << A->getAsString(Args); + continue; + } else if (XarchArg->getOption().hasFlag(options::DriverOption)) { + getDriver().Diag(diag::err_drv_invalid_Xarch_argument_isdriver) + << A->getAsString(Args); + continue; + } + XarchArg->setBaseArg(A); + A = XarchArg.release(); + DAL->AddSynthesizedArg(A); + } + DAL->append(A); + } + + if (!BoundArch.empty()) { + DAL->eraseArg(options::OPT_march_EQ); + DAL->AddJoinedArg(nullptr, Opts.getOption(options::OPT_march_EQ), BoundArch); + } + return DAL; +} + +Tool *CudaToolChain::buildAssembler() const { + return new tools::NVPTX::Assembler(*this); +} + +Tool *CudaToolChain::buildLinker() const { + return new tools::NVPTX::Linker(*this); +} + +void CudaToolChain::addClangWarningOptions(ArgStringList &CC1Args) const { + HostTC.addClangWarningOptions(CC1Args); +} + +ToolChain::CXXStdlibType +CudaToolChain::GetCXXStdlibType(const ArgList &Args) const { + return HostTC.GetCXXStdlibType(Args); +} + +void CudaToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + HostTC.AddClangSystemIncludeArgs(DriverArgs, CC1Args); +} + +void CudaToolChain::AddClangCXXStdlibIncludeArgs(const ArgList &Args, + ArgStringList &CC1Args) const { + HostTC.AddClangCXXStdlibIncludeArgs(Args, CC1Args); +} + +void CudaToolChain::AddIAMCUIncludeArgs(const ArgList &Args, + ArgStringList &CC1Args) const { + HostTC.AddIAMCUIncludeArgs(Args, CC1Args); +} + +SanitizerMask CudaToolChain::getSupportedSanitizers() const { + // The CudaToolChain only supports sanitizers in the sense that it allows + // sanitizer arguments on the command line if they are supported by the host + // toolchain. The CudaToolChain will actually ignore any command line + // arguments for any of these "supported" sanitizers. That means that no + // sanitization of device code is actually supported at this time. + // + // This behavior is necessary because the host and device toolchains + // invocations often share the command line, so the device toolchain must + // tolerate flags meant only for the host toolchain. + return HostTC.getSupportedSanitizers(); +} + +VersionTuple CudaToolChain::computeMSVCVersion(const Driver *D, + const ArgList &Args) const { + return HostTC.computeMSVCVersion(D, Args); +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Cuda.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Cuda.h new file mode 100644 index 0000000..e66fc23 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Cuda.h @@ -0,0 +1,178 @@ +//===--- Cuda.h - Cuda ToolChain Implementations ----------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_CUDA_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_CUDA_H + +#include "clang/Basic/Cuda.h" +#include "clang/Basic/VersionTuple.h" +#include "clang/Driver/Action.h" +#include "clang/Driver/Multilib.h" +#include "clang/Driver/ToolChain.h" +#include "clang/Driver/Tool.h" +#include "llvm/ADT/Optional.h" +#include "llvm/ADT/SmallSet.h" +#include "llvm/Support/Compiler.h" +#include <set> +#include <vector> + +namespace clang { +namespace driver { + +/// A class to find a viable CUDA installation +class CudaInstallationDetector { +private: + const Driver &D; + bool IsValid = false; + CudaVersion Version = CudaVersion::UNKNOWN; + std::string InstallPath; + std::string BinPath; + std::string LibPath; + std::string LibDevicePath; + std::string IncludePath; + llvm::StringMap<std::string> LibDeviceMap; + + // CUDA architectures for which we have raised an error in + // CheckCudaVersionSupportsArch. + mutable llvm::SmallSet<CudaArch, 4> ArchsWithVersionTooLowErrors; + +public: + CudaInstallationDetector(const Driver &D, const llvm::Triple &HostTriple, + const llvm::opt::ArgList &Args); + + void AddCudaIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const; + + /// \brief Emit an error if Version does not support the given Arch. + /// + /// If either Version or Arch is unknown, does not emit an error. Emits at + /// most one error per Arch. + void CheckCudaVersionSupportsArch(CudaArch Arch) const; + + /// \brief Check whether we detected a valid Cuda install. + bool isValid() const { return IsValid; } + /// \brief Print information about the detected CUDA installation. + void print(raw_ostream &OS) const; + + /// \brief Get the detected Cuda install's version. + CudaVersion version() const { return Version; } + /// \brief Get the detected Cuda installation path. + StringRef getInstallPath() const { return InstallPath; } + /// \brief Get the detected path to Cuda's bin directory. + StringRef getBinPath() const { return BinPath; } + /// \brief Get the detected Cuda Include path. + StringRef getIncludePath() const { return IncludePath; } + /// \brief Get the detected Cuda library path. + StringRef getLibPath() const { return LibPath; } + /// \brief Get the detected Cuda device library path. + StringRef getLibDevicePath() const { return LibDevicePath; } + /// \brief Get libdevice file for given architecture + std::string getLibDeviceFile(StringRef Gpu) const { + return LibDeviceMap.lookup(Gpu); + } +}; + +namespace tools { +namespace NVPTX { + +// Run ptxas, the NVPTX assembler. +class LLVM_LIBRARY_VISIBILITY Assembler : public Tool { + public: + Assembler(const ToolChain &TC) + : Tool("NVPTX::Assembler", "ptxas", TC, RF_Full, llvm::sys::WEM_UTF8, + "--options-file") {} + + bool hasIntegratedCPP() const override { return false; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +// Runs fatbinary, which combines GPU object files ("cubin" files) and/or PTX +// assembly into a single output file. +class LLVM_LIBRARY_VISIBILITY Linker : public Tool { + public: + Linker(const ToolChain &TC) + : Tool("NVPTX::Linker", "fatbinary", TC, RF_Full, llvm::sys::WEM_UTF8, + "--options-file") {} + + bool hasIntegratedCPP() const override { return false; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +} // end namespace NVPTX +} // end namespace tools + +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY CudaToolChain : public ToolChain { +public: + CudaToolChain(const Driver &D, const llvm::Triple &Triple, + const ToolChain &HostTC, const llvm::opt::ArgList &Args); + + virtual const llvm::Triple *getAuxTriple() const override { + return &HostTC.getTriple(); + } + + llvm::opt::DerivedArgList * + TranslateArgs(const llvm::opt::DerivedArgList &Args, StringRef BoundArch, + Action::OffloadKind DeviceOffloadKind) const override; + void addClangTargetOptions(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args, + Action::OffloadKind DeviceOffloadKind) const override; + + // Never try to use the integrated assembler with CUDA; always fork out to + // ptxas. + bool useIntegratedAs() const override { return false; } + bool isCrossCompiling() const override { return true; } + bool isPICDefault() const override { return false; } + bool isPIEDefault() const override { return false; } + bool isPICDefaultForced() const override { return false; } + bool SupportsProfiling() const override { return false; } + bool SupportsObjCGC() const override { return false; } + + void AddCudaIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + + void addClangWarningOptions(llvm::opt::ArgStringList &CC1Args) const override; + CXXStdlibType GetCXXStdlibType(const llvm::opt::ArgList &Args) const override; + void + AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + void AddClangCXXStdlibIncludeArgs( + const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CC1Args) const override; + void AddIAMCUIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + + SanitizerMask getSupportedSanitizers() const override; + + VersionTuple + computeMSVCVersion(const Driver *D, + const llvm::opt::ArgList &Args) const override; + + const ToolChain &HostTC; + CudaInstallationDetector CudaInstallation; + +protected: + Tool *buildAssembler() const override; // ptxas + Tool *buildLinker() const override; // fatbinary (ok, not really a linker) +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_CUDA_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Darwin.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Darwin.cpp new file mode 100644 index 0000000..32103a6 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Darwin.cpp @@ -0,0 +1,2033 @@ +//===--- Darwin.cpp - Darwin Tool and ToolChain Implementations -*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "Darwin.h" +#include "Arch/ARM.h" +#include "CommonArgs.h" +#include "clang/Basic/ObjCRuntime.h" +#include "clang/Basic/VirtualFileSystem.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Options.h" +#include "clang/Driver/SanitizerArgs.h" +#include "llvm/ADT/StringSwitch.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Support/Path.h" +#include "llvm/Support/ScopedPrinter.h" +#include "llvm/Support/TargetParser.h" +#include <cstdlib> // ::getenv + +using namespace clang::driver; +using namespace clang::driver::tools; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +llvm::Triple::ArchType darwin::getArchTypeForMachOArchName(StringRef Str) { + // See arch(3) and llvm-gcc's driver-driver.c. We don't implement support for + // archs which Darwin doesn't use. + + // The matching this routine does is fairly pointless, since it is neither the + // complete architecture list, nor a reasonable subset. The problem is that + // historically the driver driver accepts this and also ties its -march= + // handling to the architecture name, so we need to be careful before removing + // support for it. + + // This code must be kept in sync with Clang's Darwin specific argument + // translation. + + return llvm::StringSwitch<llvm::Triple::ArchType>(Str) + .Cases("ppc", "ppc601", "ppc603", "ppc604", "ppc604e", llvm::Triple::ppc) + .Cases("ppc750", "ppc7400", "ppc7450", "ppc970", llvm::Triple::ppc) + .Case("ppc64", llvm::Triple::ppc64) + .Cases("i386", "i486", "i486SX", "i586", "i686", llvm::Triple::x86) + .Cases("pentium", "pentpro", "pentIIm3", "pentIIm5", "pentium4", + llvm::Triple::x86) + .Cases("x86_64", "x86_64h", llvm::Triple::x86_64) + // This is derived from the driver driver. + .Cases("arm", "armv4t", "armv5", "armv6", "armv6m", llvm::Triple::arm) + .Cases("armv7", "armv7em", "armv7k", "armv7m", llvm::Triple::arm) + .Cases("armv7s", "xscale", llvm::Triple::arm) + .Case("arm64", llvm::Triple::aarch64) + .Case("r600", llvm::Triple::r600) + .Case("amdgcn", llvm::Triple::amdgcn) + .Case("nvptx", llvm::Triple::nvptx) + .Case("nvptx64", llvm::Triple::nvptx64) + .Case("amdil", llvm::Triple::amdil) + .Case("spir", llvm::Triple::spir) + .Default(llvm::Triple::UnknownArch); +} + +void darwin::setTripleTypeForMachOArchName(llvm::Triple &T, StringRef Str) { + const llvm::Triple::ArchType Arch = getArchTypeForMachOArchName(Str); + unsigned ArchKind = llvm::ARM::parseArch(Str); + T.setArch(Arch); + + if (Str == "x86_64h") + T.setArchName(Str); + else if (ArchKind == llvm::ARM::AK_ARMV6M || + ArchKind == llvm::ARM::AK_ARMV7M || + ArchKind == llvm::ARM::AK_ARMV7EM) { + T.setOS(llvm::Triple::UnknownOS); + T.setObjectFormat(llvm::Triple::MachO); + } +} + +void darwin::Assembler::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + ArgStringList CmdArgs; + + assert(Inputs.size() == 1 && "Unexpected number of inputs."); + const InputInfo &Input = Inputs[0]; + + // Determine the original source input. + const Action *SourceAction = &JA; + while (SourceAction->getKind() != Action::InputClass) { + assert(!SourceAction->getInputs().empty() && "unexpected root action!"); + SourceAction = SourceAction->getInputs()[0]; + } + + // If -fno-integrated-as is used add -Q to the darwin assember driver to make + // sure it runs its system assembler not clang's integrated assembler. + // Applicable to darwin11+ and Xcode 4+. darwin<10 lacked integrated-as. + // FIXME: at run-time detect assembler capabilities or rely on version + // information forwarded by -target-assembler-version. + if (Args.hasArg(options::OPT_fno_integrated_as)) { + const llvm::Triple &T(getToolChain().getTriple()); + if (!(T.isMacOSX() && T.isMacOSXVersionLT(10, 7))) + CmdArgs.push_back("-Q"); + } + + // Forward -g, assuming we are dealing with an actual assembly file. + if (SourceAction->getType() == types::TY_Asm || + SourceAction->getType() == types::TY_PP_Asm) { + if (Args.hasArg(options::OPT_gstabs)) + CmdArgs.push_back("--gstabs"); + else if (Args.hasArg(options::OPT_g_Group)) + CmdArgs.push_back("-g"); + } + + // Derived from asm spec. + AddMachOArch(Args, CmdArgs); + + // Use -force_cpusubtype_ALL on x86 by default. + if (getToolChain().getArch() == llvm::Triple::x86 || + getToolChain().getArch() == llvm::Triple::x86_64 || + Args.hasArg(options::OPT_force__cpusubtype__ALL)) + CmdArgs.push_back("-force_cpusubtype_ALL"); + + if (getToolChain().getArch() != llvm::Triple::x86_64 && + (((Args.hasArg(options::OPT_mkernel) || + Args.hasArg(options::OPT_fapple_kext)) && + getMachOToolChain().isKernelStatic()) || + Args.hasArg(options::OPT_static))) + CmdArgs.push_back("-static"); + + Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); + + assert(Output.isFilename() && "Unexpected lipo output."); + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + assert(Input.isFilename() && "Invalid input."); + CmdArgs.push_back(Input.getFilename()); + + // asm_final spec is empty. + + const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as")); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +void darwin::MachOTool::anchor() {} + +void darwin::MachOTool::AddMachOArch(const ArgList &Args, + ArgStringList &CmdArgs) const { + StringRef ArchName = getMachOToolChain().getMachOArchName(Args); + + // Derived from darwin_arch spec. + CmdArgs.push_back("-arch"); + CmdArgs.push_back(Args.MakeArgString(ArchName)); + + // FIXME: Is this needed anymore? + if (ArchName == "arm") + CmdArgs.push_back("-force_cpusubtype_ALL"); +} + +bool darwin::Linker::NeedsTempPath(const InputInfoList &Inputs) const { + // We only need to generate a temp path for LTO if we aren't compiling object + // files. When compiling source files, we run 'dsymutil' after linking. We + // don't run 'dsymutil' when compiling object files. + for (const auto &Input : Inputs) + if (Input.getType() != types::TY_Object) + return true; + + return false; +} + +/// \brief Pass -no_deduplicate to ld64 under certain conditions: +/// +/// - Either -O0 or -O1 is explicitly specified +/// - No -O option is specified *and* this is a compile+link (implicit -O0) +/// +/// Also do *not* add -no_deduplicate when no -O option is specified and this +/// is just a link (we can't imply -O0) +static bool shouldLinkerNotDedup(bool IsLinkerOnlyAction, const ArgList &Args) { + if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { + if (A->getOption().matches(options::OPT_O0)) + return true; + if (A->getOption().matches(options::OPT_O)) + return llvm::StringSwitch<bool>(A->getValue()) + .Case("1", true) + .Default(false); + return false; // OPT_Ofast & OPT_O4 + } + + if (!IsLinkerOnlyAction) // Implicit -O0 for compile+linker only. + return true; + return false; +} + +void darwin::Linker::AddLinkArgs(Compilation &C, const ArgList &Args, + ArgStringList &CmdArgs, + const InputInfoList &Inputs) const { + const Driver &D = getToolChain().getDriver(); + const toolchains::MachO &MachOTC = getMachOToolChain(); + + unsigned Version[5] = {0, 0, 0, 0, 0}; + if (Arg *A = Args.getLastArg(options::OPT_mlinker_version_EQ)) { + if (!Driver::GetReleaseVersion(A->getValue(), Version)) + D.Diag(diag::err_drv_invalid_version_number) << A->getAsString(Args); + } + + // Newer linkers support -demangle. Pass it if supported and not disabled by + // the user. + if (Version[0] >= 100 && !Args.hasArg(options::OPT_Z_Xlinker__no_demangle)) + CmdArgs.push_back("-demangle"); + + if (Args.hasArg(options::OPT_rdynamic) && Version[0] >= 137) + CmdArgs.push_back("-export_dynamic"); + + // If we are using App Extension restrictions, pass a flag to the linker + // telling it that the compiled code has been audited. + if (Args.hasFlag(options::OPT_fapplication_extension, + options::OPT_fno_application_extension, false)) + CmdArgs.push_back("-application_extension"); + + if (D.isUsingLTO()) { + // If we are using LTO, then automatically create a temporary file path for + // the linker to use, so that it's lifetime will extend past a possible + // dsymutil step. + if (Version[0] >= 116 && NeedsTempPath(Inputs)) { + const char *TmpPath = C.getArgs().MakeArgString( + D.GetTemporaryPath("cc", types::getTypeTempSuffix(types::TY_Object))); + C.addTempFile(TmpPath); + CmdArgs.push_back("-object_path_lto"); + CmdArgs.push_back(TmpPath); + } + } + + // Use -lto_library option to specify the libLTO.dylib path. Try to find + // it in clang installed libraries. ld64 will only look at this argument + // when it actually uses LTO, so libLTO.dylib only needs to exist at link + // time if ld64 decides that it needs to use LTO. + // Since this is passed unconditionally, ld64 will never look for libLTO.dylib + // next to it. That's ok since ld64 using a libLTO.dylib not matching the + // clang version won't work anyways. + if (Version[0] >= 133) { + // Search for libLTO in <InstalledDir>/../lib/libLTO.dylib + StringRef P = llvm::sys::path::parent_path(D.Dir); + SmallString<128> LibLTOPath(P); + llvm::sys::path::append(LibLTOPath, "lib"); + llvm::sys::path::append(LibLTOPath, "libLTO.dylib"); + CmdArgs.push_back("-lto_library"); + CmdArgs.push_back(C.getArgs().MakeArgString(LibLTOPath)); + } + + // ld64 version 262 and above run the deduplicate pass by default. + if (Version[0] >= 262 && shouldLinkerNotDedup(C.getJobs().empty(), Args)) + CmdArgs.push_back("-no_deduplicate"); + + // Derived from the "link" spec. + Args.AddAllArgs(CmdArgs, options::OPT_static); + if (!Args.hasArg(options::OPT_static)) + CmdArgs.push_back("-dynamic"); + if (Args.hasArg(options::OPT_fgnu_runtime)) { + // FIXME: gcc replaces -lobjc in forward args with -lobjc-gnu + // here. How do we wish to handle such things? + } + + if (!Args.hasArg(options::OPT_dynamiclib)) { + AddMachOArch(Args, CmdArgs); + // FIXME: Why do this only on this path? + Args.AddLastArg(CmdArgs, options::OPT_force__cpusubtype__ALL); + + Args.AddLastArg(CmdArgs, options::OPT_bundle); + Args.AddAllArgs(CmdArgs, options::OPT_bundle__loader); + Args.AddAllArgs(CmdArgs, options::OPT_client__name); + + Arg *A; + if ((A = Args.getLastArg(options::OPT_compatibility__version)) || + (A = Args.getLastArg(options::OPT_current__version)) || + (A = Args.getLastArg(options::OPT_install__name))) + D.Diag(diag::err_drv_argument_only_allowed_with) << A->getAsString(Args) + << "-dynamiclib"; + + Args.AddLastArg(CmdArgs, options::OPT_force__flat__namespace); + Args.AddLastArg(CmdArgs, options::OPT_keep__private__externs); + Args.AddLastArg(CmdArgs, options::OPT_private__bundle); + } else { + CmdArgs.push_back("-dylib"); + + Arg *A; + if ((A = Args.getLastArg(options::OPT_bundle)) || + (A = Args.getLastArg(options::OPT_bundle__loader)) || + (A = Args.getLastArg(options::OPT_client__name)) || + (A = Args.getLastArg(options::OPT_force__flat__namespace)) || + (A = Args.getLastArg(options::OPT_keep__private__externs)) || + (A = Args.getLastArg(options::OPT_private__bundle))) + D.Diag(diag::err_drv_argument_not_allowed_with) << A->getAsString(Args) + << "-dynamiclib"; + + Args.AddAllArgsTranslated(CmdArgs, options::OPT_compatibility__version, + "-dylib_compatibility_version"); + Args.AddAllArgsTranslated(CmdArgs, options::OPT_current__version, + "-dylib_current_version"); + + AddMachOArch(Args, CmdArgs); + + Args.AddAllArgsTranslated(CmdArgs, options::OPT_install__name, + "-dylib_install_name"); + } + + Args.AddLastArg(CmdArgs, options::OPT_all__load); + Args.AddAllArgs(CmdArgs, options::OPT_allowable__client); + Args.AddLastArg(CmdArgs, options::OPT_bind__at__load); + if (MachOTC.isTargetIOSBased()) + Args.AddLastArg(CmdArgs, options::OPT_arch__errors__fatal); + Args.AddLastArg(CmdArgs, options::OPT_dead__strip); + Args.AddLastArg(CmdArgs, options::OPT_no__dead__strip__inits__and__terms); + Args.AddAllArgs(CmdArgs, options::OPT_dylib__file); + Args.AddLastArg(CmdArgs, options::OPT_dynamic); + Args.AddAllArgs(CmdArgs, options::OPT_exported__symbols__list); + Args.AddLastArg(CmdArgs, options::OPT_flat__namespace); + Args.AddAllArgs(CmdArgs, options::OPT_force__load); + Args.AddAllArgs(CmdArgs, options::OPT_headerpad__max__install__names); + Args.AddAllArgs(CmdArgs, options::OPT_image__base); + Args.AddAllArgs(CmdArgs, options::OPT_init); + + // Add the deployment target. + MachOTC.addMinVersionArgs(Args, CmdArgs); + + Args.AddLastArg(CmdArgs, options::OPT_nomultidefs); + Args.AddLastArg(CmdArgs, options::OPT_multi__module); + Args.AddLastArg(CmdArgs, options::OPT_single__module); + Args.AddAllArgs(CmdArgs, options::OPT_multiply__defined); + Args.AddAllArgs(CmdArgs, options::OPT_multiply__defined__unused); + + if (const Arg *A = + Args.getLastArg(options::OPT_fpie, options::OPT_fPIE, + options::OPT_fno_pie, options::OPT_fno_PIE)) { + if (A->getOption().matches(options::OPT_fpie) || + A->getOption().matches(options::OPT_fPIE)) + CmdArgs.push_back("-pie"); + else + CmdArgs.push_back("-no_pie"); + } + + // for embed-bitcode, use -bitcode_bundle in linker command + if (C.getDriver().embedBitcodeEnabled()) { + // Check if the toolchain supports bitcode build flow. + if (MachOTC.SupportsEmbeddedBitcode()) { + CmdArgs.push_back("-bitcode_bundle"); + if (C.getDriver().embedBitcodeMarkerOnly() && Version[0] >= 278) { + CmdArgs.push_back("-bitcode_process_mode"); + CmdArgs.push_back("marker"); + } + } else + D.Diag(diag::err_drv_bitcode_unsupported_on_toolchain); + } + + Args.AddLastArg(CmdArgs, options::OPT_prebind); + Args.AddLastArg(CmdArgs, options::OPT_noprebind); + Args.AddLastArg(CmdArgs, options::OPT_nofixprebinding); + Args.AddLastArg(CmdArgs, options::OPT_prebind__all__twolevel__modules); + Args.AddLastArg(CmdArgs, options::OPT_read__only__relocs); + Args.AddAllArgs(CmdArgs, options::OPT_sectcreate); + Args.AddAllArgs(CmdArgs, options::OPT_sectorder); + Args.AddAllArgs(CmdArgs, options::OPT_seg1addr); + Args.AddAllArgs(CmdArgs, options::OPT_segprot); + Args.AddAllArgs(CmdArgs, options::OPT_segaddr); + Args.AddAllArgs(CmdArgs, options::OPT_segs__read__only__addr); + Args.AddAllArgs(CmdArgs, options::OPT_segs__read__write__addr); + Args.AddAllArgs(CmdArgs, options::OPT_seg__addr__table); + Args.AddAllArgs(CmdArgs, options::OPT_seg__addr__table__filename); + Args.AddAllArgs(CmdArgs, options::OPT_sub__library); + Args.AddAllArgs(CmdArgs, options::OPT_sub__umbrella); + + // Give --sysroot= preference, over the Apple specific behavior to also use + // --isysroot as the syslibroot. + StringRef sysroot = C.getSysRoot(); + if (sysroot != "") { + CmdArgs.push_back("-syslibroot"); + CmdArgs.push_back(C.getArgs().MakeArgString(sysroot)); + } else if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) { + CmdArgs.push_back("-syslibroot"); + CmdArgs.push_back(A->getValue()); + } + + Args.AddLastArg(CmdArgs, options::OPT_twolevel__namespace); + Args.AddLastArg(CmdArgs, options::OPT_twolevel__namespace__hints); + Args.AddAllArgs(CmdArgs, options::OPT_umbrella); + Args.AddAllArgs(CmdArgs, options::OPT_undefined); + Args.AddAllArgs(CmdArgs, options::OPT_unexported__symbols__list); + Args.AddAllArgs(CmdArgs, options::OPT_weak__reference__mismatches); + Args.AddLastArg(CmdArgs, options::OPT_X_Flag); + Args.AddAllArgs(CmdArgs, options::OPT_y); + Args.AddLastArg(CmdArgs, options::OPT_w); + Args.AddAllArgs(CmdArgs, options::OPT_pagezero__size); + Args.AddAllArgs(CmdArgs, options::OPT_segs__read__); + Args.AddLastArg(CmdArgs, options::OPT_seglinkedit); + Args.AddLastArg(CmdArgs, options::OPT_noseglinkedit); + Args.AddAllArgs(CmdArgs, options::OPT_sectalign); + Args.AddAllArgs(CmdArgs, options::OPT_sectobjectsymbols); + Args.AddAllArgs(CmdArgs, options::OPT_segcreate); + Args.AddLastArg(CmdArgs, options::OPT_whyload); + Args.AddLastArg(CmdArgs, options::OPT_whatsloaded); + Args.AddAllArgs(CmdArgs, options::OPT_dylinker__install__name); + Args.AddLastArg(CmdArgs, options::OPT_dylinker); + Args.AddLastArg(CmdArgs, options::OPT_Mach); +} + +/// \brief Determine whether we are linking the ObjC runtime. +static bool isObjCRuntimeLinked(const ArgList &Args) { + if (isObjCAutoRefCount(Args)) { + Args.ClaimAllArgs(options::OPT_fobjc_link_runtime); + return true; + } + return Args.hasArg(options::OPT_fobjc_link_runtime); +} + +void darwin::Linker::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + assert(Output.getType() == types::TY_Image && "Invalid linker output type."); + + // If the number of arguments surpasses the system limits, we will encode the + // input files in a separate file, shortening the command line. To this end, + // build a list of input file names that can be passed via a file with the + // -filelist linker option. + llvm::opt::ArgStringList InputFileList; + + // The logic here is derived from gcc's behavior; most of which + // comes from specs (starting with link_command). Consult gcc for + // more information. + ArgStringList CmdArgs; + + /// Hack(tm) to ignore linking errors when we are doing ARC migration. + if (Args.hasArg(options::OPT_ccc_arcmt_check, + options::OPT_ccc_arcmt_migrate)) { + for (const auto &Arg : Args) + Arg->claim(); + const char *Exec = + Args.MakeArgString(getToolChain().GetProgramPath("touch")); + CmdArgs.push_back(Output.getFilename()); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, None)); + return; + } + + // I'm not sure why this particular decomposition exists in gcc, but + // we follow suite for ease of comparison. + AddLinkArgs(C, Args, CmdArgs, Inputs); + + // For LTO, pass the name of the optimization record file. + if (Args.hasFlag(options::OPT_fsave_optimization_record, + options::OPT_fno_save_optimization_record, false)) { + CmdArgs.push_back("-mllvm"); + CmdArgs.push_back("-lto-pass-remarks-output"); + CmdArgs.push_back("-mllvm"); + + SmallString<128> F; + F = Output.getFilename(); + F += ".opt.yaml"; + CmdArgs.push_back(Args.MakeArgString(F)); + + if (getLastProfileUseArg(Args)) { + CmdArgs.push_back("-mllvm"); + CmdArgs.push_back("-lto-pass-remarks-with-hotness"); + } + } + + // It seems that the 'e' option is completely ignored for dynamic executables + // (the default), and with static executables, the last one wins, as expected. + Args.AddAllArgs(CmdArgs, {options::OPT_d_Flag, options::OPT_s, options::OPT_t, + options::OPT_Z_Flag, options::OPT_u_Group, + options::OPT_e, options::OPT_r}); + + // Forward -ObjC when either -ObjC or -ObjC++ is used, to force loading + // members of static archive libraries which implement Objective-C classes or + // categories. + if (Args.hasArg(options::OPT_ObjC) || Args.hasArg(options::OPT_ObjCXX)) + CmdArgs.push_back("-ObjC"); + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) + getMachOToolChain().addStartObjectFileArgs(Args, CmdArgs); + + // SafeStack requires its own runtime libraries + // These libraries should be linked first, to make sure the + // __safestack_init constructor executes before everything else + if (getToolChain().getSanitizerArgs().needsSafeStackRt()) { + getMachOToolChain().AddLinkRuntimeLib(Args, CmdArgs, + "libclang_rt.safestack_osx.a", + /*AlwaysLink=*/true); + } + + Args.AddAllArgs(CmdArgs, options::OPT_L); + + AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); + // Build the input file for -filelist (list of linker input files) in case we + // need it later + for (const auto &II : Inputs) { + if (!II.isFilename()) { + // This is a linker input argument. + // We cannot mix input arguments and file names in a -filelist input, thus + // we prematurely stop our list (remaining files shall be passed as + // arguments). + if (InputFileList.size() > 0) + break; + + continue; + } + + InputFileList.push_back(II.getFilename()); + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) + addOpenMPRuntime(CmdArgs, getToolChain(), Args); + + if (isObjCRuntimeLinked(Args) && + !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { + // We use arclite library for both ARC and subscripting support. + getMachOToolChain().AddLinkARCArgs(Args, CmdArgs); + + CmdArgs.push_back("-framework"); + CmdArgs.push_back("Foundation"); + // Link libobj. + CmdArgs.push_back("-lobjc"); + } + + if (LinkingOutput) { + CmdArgs.push_back("-arch_multiple"); + CmdArgs.push_back("-final_output"); + CmdArgs.push_back(LinkingOutput); + } + + if (Args.hasArg(options::OPT_fnested_functions)) + CmdArgs.push_back("-allow_stack_execute"); + + getMachOToolChain().addProfileRTLibs(Args, CmdArgs); + + if (unsigned Parallelism = + getLTOParallelism(Args, getToolChain().getDriver())) { + CmdArgs.push_back("-mllvm"); + CmdArgs.push_back( + Args.MakeArgString(Twine("-threads=") + llvm::to_string(Parallelism))); + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { + if (getToolChain().getDriver().CCCIsCXX()) + getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs); + + // link_ssp spec is empty. + + // Let the tool chain choose which runtime library to link. + getMachOToolChain().AddLinkRuntimeLibArgs(Args, CmdArgs); + + // No need to do anything for pthreads. Claim argument to avoid warning. + Args.ClaimAllArgs(options::OPT_pthread); + Args.ClaimAllArgs(options::OPT_pthreads); + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + // endfile_spec is empty. + } + + Args.AddAllArgs(CmdArgs, options::OPT_T_Group); + Args.AddAllArgs(CmdArgs, options::OPT_F); + + // -iframework should be forwarded as -F. + for (const Arg *A : Args.filtered(options::OPT_iframework)) + CmdArgs.push_back(Args.MakeArgString(std::string("-F") + A->getValue())); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { + if (Arg *A = Args.getLastArg(options::OPT_fveclib)) { + if (A->getValue() == StringRef("Accelerate")) { + CmdArgs.push_back("-framework"); + CmdArgs.push_back("Accelerate"); + } + } + } + + const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath()); + std::unique_ptr<Command> Cmd = + llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs); + Cmd->setInputFileList(std::move(InputFileList)); + C.addCommand(std::move(Cmd)); +} + +void darwin::Lipo::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + ArgStringList CmdArgs; + + CmdArgs.push_back("-create"); + assert(Output.isFilename() && "Unexpected lipo output."); + + CmdArgs.push_back("-output"); + CmdArgs.push_back(Output.getFilename()); + + for (const auto &II : Inputs) { + assert(II.isFilename() && "Unexpected lipo input."); + CmdArgs.push_back(II.getFilename()); + } + + const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("lipo")); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +void darwin::Dsymutil::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + ArgStringList CmdArgs; + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + assert(Inputs.size() == 1 && "Unable to handle multiple inputs."); + const InputInfo &Input = Inputs[0]; + assert(Input.isFilename() && "Unexpected dsymutil input."); + CmdArgs.push_back(Input.getFilename()); + + const char *Exec = + Args.MakeArgString(getToolChain().GetProgramPath("dsymutil")); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +void darwin::VerifyDebug::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + ArgStringList CmdArgs; + CmdArgs.push_back("--verify"); + CmdArgs.push_back("--debug-info"); + CmdArgs.push_back("--eh-frame"); + CmdArgs.push_back("--quiet"); + + assert(Inputs.size() == 1 && "Unable to handle multiple inputs."); + const InputInfo &Input = Inputs[0]; + assert(Input.isFilename() && "Unexpected verify input"); + + // Grabbing the output of the earlier dsymutil run. + CmdArgs.push_back(Input.getFilename()); + + const char *Exec = + Args.MakeArgString(getToolChain().GetProgramPath("dwarfdump")); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +MachO::MachO(const Driver &D, const llvm::Triple &Triple, const ArgList &Args) + : ToolChain(D, Triple, Args) { + // We expect 'as', 'ld', etc. to be adjacent to our install dir. + getProgramPaths().push_back(getDriver().getInstalledDir()); + if (getDriver().getInstalledDir() != getDriver().Dir) + getProgramPaths().push_back(getDriver().Dir); +} + +/// Darwin - Darwin tool chain for i386 and x86_64. +Darwin::Darwin(const Driver &D, const llvm::Triple &Triple, const ArgList &Args) + : MachO(D, Triple, Args), TargetInitialized(false), + CudaInstallation(D, Triple, Args) {} + +types::ID MachO::LookupTypeForExtension(StringRef Ext) const { + types::ID Ty = types::lookupTypeForExtension(Ext); + + // Darwin always preprocesses assembly files (unless -x is used explicitly). + if (Ty == types::TY_PP_Asm) + return types::TY_Asm; + + return Ty; +} + +bool MachO::HasNativeLLVMSupport() const { return true; } + +ToolChain::CXXStdlibType Darwin::GetDefaultCXXStdlibType() const { + // Default to use libc++ on OS X 10.9+ and iOS 7+. + if ((isTargetMacOS() && !isMacosxVersionLT(10, 9)) || + (isTargetIOSBased() && !isIPhoneOSVersionLT(7, 0)) || + isTargetWatchOSBased()) + return ToolChain::CST_Libcxx; + + return ToolChain::CST_Libstdcxx; +} + +/// Darwin provides an ARC runtime starting in MacOS X 10.7 and iOS 5.0. +ObjCRuntime Darwin::getDefaultObjCRuntime(bool isNonFragile) const { + if (isTargetWatchOSBased()) + return ObjCRuntime(ObjCRuntime::WatchOS, TargetVersion); + if (isTargetIOSBased()) + return ObjCRuntime(ObjCRuntime::iOS, TargetVersion); + if (isNonFragile) + return ObjCRuntime(ObjCRuntime::MacOSX, TargetVersion); + return ObjCRuntime(ObjCRuntime::FragileMacOSX, TargetVersion); +} + +/// Darwin provides a blocks runtime starting in MacOS X 10.6 and iOS 3.2. +bool Darwin::hasBlocksRuntime() const { + if (isTargetWatchOSBased()) + return true; + else if (isTargetIOSBased()) + return !isIPhoneOSVersionLT(3, 2); + else { + assert(isTargetMacOS() && "unexpected darwin target"); + return !isMacosxVersionLT(10, 6); + } +} + +void Darwin::AddCudaIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + CudaInstallation.AddCudaIncludeArgs(DriverArgs, CC1Args); +} + +// This is just a MachO name translation routine and there's no +// way to join this into ARMTargetParser without breaking all +// other assumptions. Maybe MachO should consider standardising +// their nomenclature. +static const char *ArmMachOArchName(StringRef Arch) { + return llvm::StringSwitch<const char *>(Arch) + .Case("armv6k", "armv6") + .Case("armv6m", "armv6m") + .Case("armv5tej", "armv5") + .Case("xscale", "xscale") + .Case("armv4t", "armv4t") + .Case("armv7", "armv7") + .Cases("armv7a", "armv7-a", "armv7") + .Cases("armv7r", "armv7-r", "armv7") + .Cases("armv7em", "armv7e-m", "armv7em") + .Cases("armv7k", "armv7-k", "armv7k") + .Cases("armv7m", "armv7-m", "armv7m") + .Cases("armv7s", "armv7-s", "armv7s") + .Default(nullptr); +} + +static const char *ArmMachOArchNameCPU(StringRef CPU) { + unsigned ArchKind = llvm::ARM::parseCPUArch(CPU); + if (ArchKind == llvm::ARM::AK_INVALID) + return nullptr; + StringRef Arch = llvm::ARM::getArchName(ArchKind); + + // FIXME: Make sure this MachO triple mangling is really necessary. + // ARMv5* normalises to ARMv5. + if (Arch.startswith("armv5")) + Arch = Arch.substr(0, 5); + // ARMv6*, except ARMv6M, normalises to ARMv6. + else if (Arch.startswith("armv6") && !Arch.endswith("6m")) + Arch = Arch.substr(0, 5); + // ARMv7A normalises to ARMv7. + else if (Arch.endswith("v7a")) + Arch = Arch.substr(0, 5); + return Arch.data(); +} + +StringRef MachO::getMachOArchName(const ArgList &Args) const { + switch (getTriple().getArch()) { + default: + return getDefaultUniversalArchName(); + + case llvm::Triple::aarch64: + return "arm64"; + + case llvm::Triple::thumb: + case llvm::Triple::arm: + if (const Arg *A = Args.getLastArg(clang::driver::options::OPT_march_EQ)) + if (const char *Arch = ArmMachOArchName(A->getValue())) + return Arch; + + if (const Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) + if (const char *Arch = ArmMachOArchNameCPU(A->getValue())) + return Arch; + + return "arm"; + } +} + +Darwin::~Darwin() {} + +MachO::~MachO() {} + +std::string Darwin::ComputeEffectiveClangTriple(const ArgList &Args, + types::ID InputType) const { + llvm::Triple Triple(ComputeLLVMTriple(Args, InputType)); + + // If the target isn't initialized (e.g., an unknown Darwin platform, return + // the default triple). + if (!isTargetInitialized()) + return Triple.getTriple(); + + SmallString<16> Str; + if (isTargetWatchOSBased()) + Str += "watchos"; + else if (isTargetTvOSBased()) + Str += "tvos"; + else if (isTargetIOSBased()) + Str += "ios"; + else + Str += "macosx"; + Str += getTargetVersion().getAsString(); + Triple.setOSName(Str); + + return Triple.getTriple(); +} + +Tool *MachO::getTool(Action::ActionClass AC) const { + switch (AC) { + case Action::LipoJobClass: + if (!Lipo) + Lipo.reset(new tools::darwin::Lipo(*this)); + return Lipo.get(); + case Action::DsymutilJobClass: + if (!Dsymutil) + Dsymutil.reset(new tools::darwin::Dsymutil(*this)); + return Dsymutil.get(); + case Action::VerifyDebugInfoJobClass: + if (!VerifyDebug) + VerifyDebug.reset(new tools::darwin::VerifyDebug(*this)); + return VerifyDebug.get(); + default: + return ToolChain::getTool(AC); + } +} + +Tool *MachO::buildLinker() const { return new tools::darwin::Linker(*this); } + +Tool *MachO::buildAssembler() const { + return new tools::darwin::Assembler(*this); +} + +DarwinClang::DarwinClang(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : Darwin(D, Triple, Args) {} + +void DarwinClang::addClangWarningOptions(ArgStringList &CC1Args) const { + // For modern targets, promote certain warnings to errors. + if (isTargetWatchOSBased() || getTriple().isArch64Bit()) { + // Always enable -Wdeprecated-objc-isa-usage and promote it + // to an error. + CC1Args.push_back("-Wdeprecated-objc-isa-usage"); + CC1Args.push_back("-Werror=deprecated-objc-isa-usage"); + + // For iOS and watchOS, also error about implicit function declarations, + // as that can impact calling conventions. + if (!isTargetMacOS()) + CC1Args.push_back("-Werror=implicit-function-declaration"); + } +} + +void DarwinClang::AddLinkARCArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + // Avoid linking compatibility stubs on i386 mac. + if (isTargetMacOS() && getArch() == llvm::Triple::x86) + return; + + ObjCRuntime runtime = getDefaultObjCRuntime(/*nonfragile*/ true); + + if ((runtime.hasNativeARC() || !isObjCAutoRefCount(Args)) && + runtime.hasSubscripting()) + return; + + CmdArgs.push_back("-force_load"); + SmallString<128> P(getDriver().ClangExecutable); + llvm::sys::path::remove_filename(P); // 'clang' + llvm::sys::path::remove_filename(P); // 'bin' + llvm::sys::path::append(P, "lib", "arc", "libarclite_"); + // Mash in the platform. + if (isTargetWatchOSSimulator()) + P += "watchsimulator"; + else if (isTargetWatchOS()) + P += "watchos"; + else if (isTargetTvOSSimulator()) + P += "appletvsimulator"; + else if (isTargetTvOS()) + P += "appletvos"; + else if (isTargetIOSSimulator()) + P += "iphonesimulator"; + else if (isTargetIPhoneOS()) + P += "iphoneos"; + else + P += "macosx"; + P += ".a"; + + CmdArgs.push_back(Args.MakeArgString(P)); +} + +unsigned DarwinClang::GetDefaultDwarfVersion() const { + // Default to use DWARF 2 on OS X 10.10 / iOS 8 and lower. + if ((isTargetMacOS() && isMacosxVersionLT(10, 11)) || + (isTargetIOSBased() && isIPhoneOSVersionLT(9))) + return 2; + return 4; +} + +void MachO::AddLinkRuntimeLib(const ArgList &Args, ArgStringList &CmdArgs, + StringRef DarwinLibName, bool AlwaysLink, + bool IsEmbedded, bool AddRPath) const { + SmallString<128> Dir(getDriver().ResourceDir); + llvm::sys::path::append(Dir, "lib", IsEmbedded ? "macho_embedded" : "darwin"); + + SmallString<128> P(Dir); + llvm::sys::path::append(P, DarwinLibName); + + // For now, allow missing resource libraries to support developers who may + // not have compiler-rt checked out or integrated into their build (unless + // we explicitly force linking with this library). + if (AlwaysLink || getVFS().exists(P)) + CmdArgs.push_back(Args.MakeArgString(P)); + + // Adding the rpaths might negatively interact when other rpaths are involved, + // so we should make sure we add the rpaths last, after all user-specified + // rpaths. This is currently true from this place, but we need to be + // careful if this function is ever called before user's rpaths are emitted. + if (AddRPath) { + assert(DarwinLibName.endswith(".dylib") && "must be a dynamic library"); + + // Add @executable_path to rpath to support having the dylib copied with + // the executable. + CmdArgs.push_back("-rpath"); + CmdArgs.push_back("@executable_path"); + + // Add the path to the resource dir to rpath to support using the dylib + // from the default location without copying. + CmdArgs.push_back("-rpath"); + CmdArgs.push_back(Args.MakeArgString(Dir)); + } +} + +void MachO::AddFuzzerLinkArgs(const ArgList &Args, ArgStringList &CmdArgs) const { + + // Go up one directory from Clang to find the libfuzzer archive file. + StringRef ParentDir = llvm::sys::path::parent_path(getDriver().InstalledDir); + SmallString<128> P(ParentDir); + llvm::sys::path::append(P, "lib", "libLLVMFuzzer.a"); + CmdArgs.push_back(Args.MakeArgString(P)); + + // Libfuzzer is written in C++ and requires libcxx. + AddCXXStdlibLibArgs(Args, CmdArgs); +} + +StringRef Darwin::getPlatformFamily() const { + switch (TargetPlatform) { + case DarwinPlatformKind::MacOS: + return "MacOSX"; + case DarwinPlatformKind::IPhoneOS: + case DarwinPlatformKind::IPhoneOSSimulator: + return "iPhone"; + case DarwinPlatformKind::TvOS: + case DarwinPlatformKind::TvOSSimulator: + return "AppleTV"; + case DarwinPlatformKind::WatchOS: + case DarwinPlatformKind::WatchOSSimulator: + return "Watch"; + } + llvm_unreachable("Unsupported platform"); +} + +StringRef Darwin::getSDKName(StringRef isysroot) { + // Assume SDK has path: SOME_PATH/SDKs/PlatformXX.YY.sdk + llvm::sys::path::const_iterator SDKDir; + auto BeginSDK = llvm::sys::path::begin(isysroot); + auto EndSDK = llvm::sys::path::end(isysroot); + for (auto IT = BeginSDK; IT != EndSDK; ++IT) { + StringRef SDK = *IT; + if (SDK.endswith(".sdk")) + return SDK.slice(0, SDK.size() - 4); + } + return ""; +} + +StringRef Darwin::getOSLibraryNameSuffix() const { + switch(TargetPlatform) { + case DarwinPlatformKind::MacOS: + return "osx"; + case DarwinPlatformKind::IPhoneOS: + return "ios"; + case DarwinPlatformKind::IPhoneOSSimulator: + return "iossim"; + case DarwinPlatformKind::TvOS: + return "tvos"; + case DarwinPlatformKind::TvOSSimulator: + return "tvossim"; + case DarwinPlatformKind::WatchOS: + return "watchos"; + case DarwinPlatformKind::WatchOSSimulator: + return "watchossim"; + } + llvm_unreachable("Unsupported platform"); +} + +void Darwin::addProfileRTLibs(const ArgList &Args, + ArgStringList &CmdArgs) const { + if (!needsProfileRT(Args)) return; + + AddLinkRuntimeLib(Args, CmdArgs, (Twine("libclang_rt.profile_") + + getOSLibraryNameSuffix() + ".a").str(), + /*AlwaysLink*/ true); +} + +void DarwinClang::AddLinkSanitizerLibArgs(const ArgList &Args, + ArgStringList &CmdArgs, + StringRef Sanitizer) const { + AddLinkRuntimeLib( + Args, CmdArgs, + (Twine("libclang_rt.") + Sanitizer + "_" + + getOSLibraryNameSuffix() + "_dynamic.dylib").str(), + /*AlwaysLink*/ true, /*IsEmbedded*/ false, + /*AddRPath*/ true); +} + +ToolChain::RuntimeLibType DarwinClang::GetRuntimeLibType( + const ArgList &Args) const { + if (Arg* A = Args.getLastArg(options::OPT_rtlib_EQ)) { + StringRef Value = A->getValue(); + if (Value != "compiler-rt") + getDriver().Diag(clang::diag::err_drv_unsupported_rtlib_for_platform) + << Value << "darwin"; + } + + return ToolChain::RLT_CompilerRT; +} + +void DarwinClang::AddLinkRuntimeLibArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + // Call once to ensure diagnostic is printed if wrong value was specified + GetRuntimeLibType(Args); + + // Darwin doesn't support real static executables, don't link any runtime + // libraries with -static. + if (Args.hasArg(options::OPT_static) || + Args.hasArg(options::OPT_fapple_kext) || + Args.hasArg(options::OPT_mkernel)) + return; + + // Reject -static-libgcc for now, we can deal with this when and if someone + // cares. This is useful in situations where someone wants to statically link + // something like libstdc++, and needs its runtime support routines. + if (const Arg *A = Args.getLastArg(options::OPT_static_libgcc)) { + getDriver().Diag(diag::err_drv_unsupported_opt) << A->getAsString(Args); + return; + } + + const SanitizerArgs &Sanitize = getSanitizerArgs(); + if (Sanitize.needsAsanRt()) + AddLinkSanitizerLibArgs(Args, CmdArgs, "asan"); + if (Sanitize.needsLsanRt()) + AddLinkSanitizerLibArgs(Args, CmdArgs, "lsan"); + if (Sanitize.needsUbsanRt()) + AddLinkSanitizerLibArgs(Args, CmdArgs, "ubsan"); + if (Sanitize.needsTsanRt()) + AddLinkSanitizerLibArgs(Args, CmdArgs, "tsan"); + if (Sanitize.needsFuzzer() && !Args.hasArg(options::OPT_dynamiclib)) + AddFuzzerLinkArgs(Args, CmdArgs); + if (Sanitize.needsStatsRt()) { + StringRef OS = isTargetMacOS() ? "osx" : "iossim"; + AddLinkRuntimeLib(Args, CmdArgs, + (Twine("libclang_rt.stats_client_") + OS + ".a").str(), + /*AlwaysLink=*/true); + AddLinkSanitizerLibArgs(Args, CmdArgs, "stats"); + } + if (Sanitize.needsEsanRt()) + AddLinkSanitizerLibArgs(Args, CmdArgs, "esan"); + + // Otherwise link libSystem, then the dynamic runtime library, and finally any + // target specific static runtime library. + CmdArgs.push_back("-lSystem"); + + // Select the dynamic runtime library and the target specific static library. + if (isTargetWatchOSBased()) { + // We currently always need a static runtime library for watchOS. + AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.watchos.a"); + } else if (isTargetTvOSBased()) { + // We currently always need a static runtime library for tvOS. + AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.tvos.a"); + } else if (isTargetIOSBased()) { + // If we are compiling as iOS / simulator, don't attempt to link libgcc_s.1, + // it never went into the SDK. + // Linking against libgcc_s.1 isn't needed for iOS 5.0+ + if (isIPhoneOSVersionLT(5, 0) && !isTargetIOSSimulator() && + getTriple().getArch() != llvm::Triple::aarch64) + CmdArgs.push_back("-lgcc_s.1"); + + // We currently always need a static runtime library for iOS. + AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.ios.a"); + } else { + assert(isTargetMacOS() && "unexpected non MacOS platform"); + // The dynamic runtime library was merged with libSystem for 10.6 and + // beyond; only 10.4 and 10.5 need an additional runtime library. + if (isMacosxVersionLT(10, 5)) + CmdArgs.push_back("-lgcc_s.10.4"); + else if (isMacosxVersionLT(10, 6)) + CmdArgs.push_back("-lgcc_s.10.5"); + + // Originally for OS X, we thought we would only need a static runtime + // library when targeting 10.4, to provide versions of the static functions + // which were omitted from 10.4.dylib. This led to the creation of the 10.4 + // builtins library. + // + // Unfortunately, that turned out to not be true, because Darwin system + // headers can still use eprintf on i386, and it is not exported from + // libSystem. Therefore, we still must provide a runtime library just for + // the tiny tiny handful of projects that *might* use that symbol. + // + // Then over time, we figured out it was useful to add more things to the + // runtime so we created libclang_rt.osx.a to provide new functions when + // deploying to old OS builds, and for a long time we had both eprintf and + // osx builtin libraries. Which just seems excessive. So with PR 28855, we + // are removing the eprintf library and expecting eprintf to be provided by + // the OS X builtins library. + if (isMacosxVersionLT(10, 5)) + AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.10.4.a"); + else + AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.osx.a"); + } +} + +/// Returns the most appropriate macOS target version for the current process. +/// +/// If the macOS SDK version is the same or earlier than the system version, +/// then the SDK version is returned. Otherwise the system version is returned. +static std::string getSystemOrSDKMacOSVersion(StringRef MacOSSDKVersion) { + unsigned Major, Minor, Micro; + llvm::Triple SystemTriple(llvm::sys::getProcessTriple()); + if (!SystemTriple.isMacOSX()) + return MacOSSDKVersion; + SystemTriple.getMacOSXVersion(Major, Minor, Micro); + VersionTuple SystemVersion(Major, Minor, Micro); + bool HadExtra; + if (!Driver::GetReleaseVersion(MacOSSDKVersion, Major, Minor, Micro, + HadExtra)) + return MacOSSDKVersion; + VersionTuple SDKVersion(Major, Minor, Micro); + if (SDKVersion > SystemVersion) + return SystemVersion.getAsString(); + return MacOSSDKVersion; +} + +void Darwin::AddDeploymentTarget(DerivedArgList &Args) const { + const OptTable &Opts = getDriver().getOpts(); + + // Support allowing the SDKROOT environment variable used by xcrun and other + // Xcode tools to define the default sysroot, by making it the default for + // isysroot. + if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) { + // Warn if the path does not exist. + if (!getVFS().exists(A->getValue())) + getDriver().Diag(clang::diag::warn_missing_sysroot) << A->getValue(); + } else { + if (char *env = ::getenv("SDKROOT")) { + // We only use this value as the default if it is an absolute path, + // exists, and it is not the root path. + if (llvm::sys::path::is_absolute(env) && getVFS().exists(env) && + StringRef(env) != "/") { + Args.append(Args.MakeSeparateArg( + nullptr, Opts.getOption(options::OPT_isysroot), env)); + } + } + } + + Arg *OSXVersion = Args.getLastArg(options::OPT_mmacosx_version_min_EQ); + Arg *iOSVersion = Args.getLastArg(options::OPT_miphoneos_version_min_EQ, + options::OPT_mios_simulator_version_min_EQ); + Arg *TvOSVersion = + Args.getLastArg(options::OPT_mtvos_version_min_EQ, + options::OPT_mtvos_simulator_version_min_EQ); + Arg *WatchOSVersion = + Args.getLastArg(options::OPT_mwatchos_version_min_EQ, + options::OPT_mwatchos_simulator_version_min_EQ); + + unsigned Major, Minor, Micro; + bool HadExtra; + + // The iOS deployment target that is explicitly specified via a command line + // option or an environment variable. + std::string ExplicitIOSDeploymentTargetStr; + + if (iOSVersion) + ExplicitIOSDeploymentTargetStr = iOSVersion->getAsString(Args); + + // Add a macro to differentiate between m(iphone|tv|watch)os-version-min=X.Y and + // -m(iphone|tv|watch)simulator-version-min=X.Y. + if (Args.hasArg(options::OPT_mios_simulator_version_min_EQ) || + Args.hasArg(options::OPT_mtvos_simulator_version_min_EQ) || + Args.hasArg(options::OPT_mwatchos_simulator_version_min_EQ)) + Args.append(Args.MakeSeparateArg(nullptr, Opts.getOption(options::OPT_D), + " __APPLE_EMBEDDED_SIMULATOR__=1")); + + if (OSXVersion && (iOSVersion || TvOSVersion || WatchOSVersion)) { + getDriver().Diag(diag::err_drv_argument_not_allowed_with) + << OSXVersion->getAsString(Args) + << (iOSVersion ? iOSVersion : + TvOSVersion ? TvOSVersion : WatchOSVersion)->getAsString(Args); + iOSVersion = TvOSVersion = WatchOSVersion = nullptr; + } else if (iOSVersion && (TvOSVersion || WatchOSVersion)) { + getDriver().Diag(diag::err_drv_argument_not_allowed_with) + << iOSVersion->getAsString(Args) + << (TvOSVersion ? TvOSVersion : WatchOSVersion)->getAsString(Args); + TvOSVersion = WatchOSVersion = nullptr; + } else if (TvOSVersion && WatchOSVersion) { + getDriver().Diag(diag::err_drv_argument_not_allowed_with) + << TvOSVersion->getAsString(Args) + << WatchOSVersion->getAsString(Args); + WatchOSVersion = nullptr; + } else if (!OSXVersion && !iOSVersion && !TvOSVersion && !WatchOSVersion) { + // If no deployment target was specified on the command line, check for + // environment defines. + std::string OSXTarget; + std::string iOSTarget; + std::string TvOSTarget; + std::string WatchOSTarget; + + if (char *env = ::getenv("MACOSX_DEPLOYMENT_TARGET")) + OSXTarget = env; + if (char *env = ::getenv("IPHONEOS_DEPLOYMENT_TARGET")) + iOSTarget = env; + if (char *env = ::getenv("TVOS_DEPLOYMENT_TARGET")) + TvOSTarget = env; + if (char *env = ::getenv("WATCHOS_DEPLOYMENT_TARGET")) + WatchOSTarget = env; + + if (!iOSTarget.empty()) + ExplicitIOSDeploymentTargetStr = + std::string("IPHONEOS_DEPLOYMENT_TARGET=") + iOSTarget; + + // If there is no command-line argument to specify the Target version and + // no environment variable defined, see if we can set the default based + // on -isysroot. + if (OSXTarget.empty() && iOSTarget.empty() && WatchOSTarget.empty() && + TvOSTarget.empty() && Args.hasArg(options::OPT_isysroot)) { + if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) { + StringRef isysroot = A->getValue(); + StringRef SDK = getSDKName(isysroot); + if (SDK.size() > 0) { + // Slice the version number out. + // Version number is between the first and the last number. + size_t StartVer = SDK.find_first_of("0123456789"); + size_t EndVer = SDK.find_last_of("0123456789"); + if (StartVer != StringRef::npos && EndVer > StartVer) { + StringRef Version = SDK.slice(StartVer, EndVer + 1); + if (SDK.startswith("iPhoneOS") || + SDK.startswith("iPhoneSimulator")) + iOSTarget = Version; + else if (SDK.startswith("MacOSX")) + OSXTarget = getSystemOrSDKMacOSVersion(Version); + else if (SDK.startswith("WatchOS") || + SDK.startswith("WatchSimulator")) + WatchOSTarget = Version; + else if (SDK.startswith("AppleTVOS") || + SDK.startswith("AppleTVSimulator")) + TvOSTarget = Version; + } + } + } + } + + // If no OS targets have been specified, try to guess platform from -target + // or arch name and compute the version from the triple. + if (OSXTarget.empty() && iOSTarget.empty() && TvOSTarget.empty() && + WatchOSTarget.empty()) { + llvm::Triple::OSType OSTy = llvm::Triple::UnknownOS; + + // Set the OSTy based on -target if -arch isn't present. + if (Args.hasArg(options::OPT_target) && !Args.hasArg(options::OPT_arch)) { + OSTy = getTriple().getOS(); + } else { + StringRef MachOArchName = getMachOArchName(Args); + if (MachOArchName == "armv7" || MachOArchName == "armv7s" || + MachOArchName == "arm64") + OSTy = llvm::Triple::IOS; + else if (MachOArchName == "armv7k") + OSTy = llvm::Triple::WatchOS; + else if (MachOArchName != "armv6m" && MachOArchName != "armv7m" && + MachOArchName != "armv7em") + OSTy = llvm::Triple::MacOSX; + } + + + if (OSTy != llvm::Triple::UnknownOS) { + unsigned Major, Minor, Micro; + std::string *OSTarget; + + switch (OSTy) { + case llvm::Triple::Darwin: + case llvm::Triple::MacOSX: + if (!getTriple().getMacOSXVersion(Major, Minor, Micro)) + getDriver().Diag(diag::err_drv_invalid_darwin_version) + << getTriple().getOSName(); + OSTarget = &OSXTarget; + break; + case llvm::Triple::IOS: + getTriple().getiOSVersion(Major, Minor, Micro); + OSTarget = &iOSTarget; + break; + case llvm::Triple::TvOS: + getTriple().getOSVersion(Major, Minor, Micro); + OSTarget = &TvOSTarget; + break; + case llvm::Triple::WatchOS: + getTriple().getWatchOSVersion(Major, Minor, Micro); + OSTarget = &WatchOSTarget; + break; + default: + llvm_unreachable("Unexpected OS type"); + break; + } + + llvm::raw_string_ostream(*OSTarget) << Major << '.' << Minor << '.' + << Micro; + } + } + + // Do not allow conflicts with the watchOS target. + if (!WatchOSTarget.empty() && (!iOSTarget.empty() || !TvOSTarget.empty())) { + getDriver().Diag(diag::err_drv_conflicting_deployment_targets) + << "WATCHOS_DEPLOYMENT_TARGET" + << (!iOSTarget.empty() ? "IPHONEOS_DEPLOYMENT_TARGET" : + "TVOS_DEPLOYMENT_TARGET"); + } + + // Do not allow conflicts with the tvOS target. + if (!TvOSTarget.empty() && !iOSTarget.empty()) { + getDriver().Diag(diag::err_drv_conflicting_deployment_targets) + << "TVOS_DEPLOYMENT_TARGET" + << "IPHONEOS_DEPLOYMENT_TARGET"; + } + + // Allow conflicts among OSX and iOS for historical reasons, but choose the + // default platform. + if (!OSXTarget.empty() && (!iOSTarget.empty() || + !WatchOSTarget.empty() || + !TvOSTarget.empty())) { + if (getTriple().getArch() == llvm::Triple::arm || + getTriple().getArch() == llvm::Triple::aarch64 || + getTriple().getArch() == llvm::Triple::thumb) + OSXTarget = ""; + else + iOSTarget = WatchOSTarget = TvOSTarget = ""; + } + + if (!OSXTarget.empty()) { + const Option O = Opts.getOption(options::OPT_mmacosx_version_min_EQ); + OSXVersion = Args.MakeJoinedArg(nullptr, O, OSXTarget); + Args.append(OSXVersion); + } else if (!iOSTarget.empty()) { + const Option O = Opts.getOption(options::OPT_miphoneos_version_min_EQ); + iOSVersion = Args.MakeJoinedArg(nullptr, O, iOSTarget); + Args.append(iOSVersion); + } else if (!TvOSTarget.empty()) { + const Option O = Opts.getOption(options::OPT_mtvos_version_min_EQ); + TvOSVersion = Args.MakeJoinedArg(nullptr, O, TvOSTarget); + Args.append(TvOSVersion); + } else if (!WatchOSTarget.empty()) { + const Option O = Opts.getOption(options::OPT_mwatchos_version_min_EQ); + WatchOSVersion = Args.MakeJoinedArg(nullptr, O, WatchOSTarget); + Args.append(WatchOSVersion); + } + } + + DarwinPlatformKind Platform; + if (OSXVersion) + Platform = MacOS; + else if (iOSVersion) + Platform = IPhoneOS; + else if (TvOSVersion) + Platform = TvOS; + else if (WatchOSVersion) + Platform = WatchOS; + else + llvm_unreachable("Unable to infer Darwin variant"); + + // Set the tool chain target information. + if (Platform == MacOS) { + assert((!iOSVersion && !TvOSVersion && !WatchOSVersion) && + "Unknown target platform!"); + if (!Driver::GetReleaseVersion(OSXVersion->getValue(), Major, Minor, Micro, + HadExtra) || + HadExtra || Major != 10 || Minor >= 100 || Micro >= 100) + getDriver().Diag(diag::err_drv_invalid_version_number) + << OSXVersion->getAsString(Args); + } else if (Platform == IPhoneOS) { + assert(iOSVersion && "Unknown target platform!"); + if (!Driver::GetReleaseVersion(iOSVersion->getValue(), Major, Minor, Micro, + HadExtra) || + HadExtra || Major >= 100 || Minor >= 100 || Micro >= 100) + getDriver().Diag(diag::err_drv_invalid_version_number) + << iOSVersion->getAsString(Args); + // For 32-bit targets, the deployment target for iOS has to be earlier than + // iOS 11. + if (getTriple().isArch32Bit() && Major >= 11) { + // If the deployment target is explicitly specified, print a diagnostic. + if (!ExplicitIOSDeploymentTargetStr.empty()) { + getDriver().Diag(diag::warn_invalid_ios_deployment_target) + << ExplicitIOSDeploymentTargetStr; + // Otherwise, set it to 10.99.99. + } else { + Major = 10; + Minor = 99; + Micro = 99; + } + } + } else if (Platform == TvOS) { + if (!Driver::GetReleaseVersion(TvOSVersion->getValue(), Major, Minor, + Micro, HadExtra) || HadExtra || + Major >= 100 || Minor >= 100 || Micro >= 100) + getDriver().Diag(diag::err_drv_invalid_version_number) + << TvOSVersion->getAsString(Args); + } else if (Platform == WatchOS) { + if (!Driver::GetReleaseVersion(WatchOSVersion->getValue(), Major, Minor, + Micro, HadExtra) || HadExtra || + Major >= 10 || Minor >= 100 || Micro >= 100) + getDriver().Diag(diag::err_drv_invalid_version_number) + << WatchOSVersion->getAsString(Args); + } else + llvm_unreachable("unknown kind of Darwin platform"); + + // Recognize iOS targets with an x86 architecture as the iOS simulator. + if (iOSVersion && (getTriple().getArch() == llvm::Triple::x86 || + getTriple().getArch() == llvm::Triple::x86_64)) + Platform = IPhoneOSSimulator; + if (TvOSVersion && (getTriple().getArch() == llvm::Triple::x86 || + getTriple().getArch() == llvm::Triple::x86_64)) + Platform = TvOSSimulator; + if (WatchOSVersion && (getTriple().getArch() == llvm::Triple::x86 || + getTriple().getArch() == llvm::Triple::x86_64)) + Platform = WatchOSSimulator; + + setTarget(Platform, Major, Minor, Micro); + + if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) { + StringRef SDK = getSDKName(A->getValue()); + if (SDK.size() > 0) { + size_t StartVer = SDK.find_first_of("0123456789"); + StringRef SDKName = SDK.slice(0, StartVer); + if (!SDKName.startswith(getPlatformFamily())) + getDriver().Diag(diag::warn_incompatible_sysroot) + << SDKName << getPlatformFamily(); + } + } +} + +void DarwinClang::AddCXXStdlibLibArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + CXXStdlibType Type = GetCXXStdlibType(Args); + + switch (Type) { + case ToolChain::CST_Libcxx: + CmdArgs.push_back("-lc++"); + break; + + case ToolChain::CST_Libstdcxx: + // Unfortunately, -lstdc++ doesn't always exist in the standard search path; + // it was previously found in the gcc lib dir. However, for all the Darwin + // platforms we care about it was -lstdc++.6, so we search for that + // explicitly if we can't see an obvious -lstdc++ candidate. + + // Check in the sysroot first. + if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) { + SmallString<128> P(A->getValue()); + llvm::sys::path::append(P, "usr", "lib", "libstdc++.dylib"); + + if (!getVFS().exists(P)) { + llvm::sys::path::remove_filename(P); + llvm::sys::path::append(P, "libstdc++.6.dylib"); + if (getVFS().exists(P)) { + CmdArgs.push_back(Args.MakeArgString(P)); + return; + } + } + } + + // Otherwise, look in the root. + // FIXME: This should be removed someday when we don't have to care about + // 10.6 and earlier, where /usr/lib/libstdc++.dylib does not exist. + if (!getVFS().exists("/usr/lib/libstdc++.dylib") && + getVFS().exists("/usr/lib/libstdc++.6.dylib")) { + CmdArgs.push_back("/usr/lib/libstdc++.6.dylib"); + return; + } + + // Otherwise, let the linker search. + CmdArgs.push_back("-lstdc++"); + break; + } +} + +void DarwinClang::AddCCKextLibArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + // For Darwin platforms, use the compiler-rt-based support library + // instead of the gcc-provided one (which is also incidentally + // only present in the gcc lib dir, which makes it hard to find). + + SmallString<128> P(getDriver().ResourceDir); + llvm::sys::path::append(P, "lib", "darwin"); + + // Use the newer cc_kext for iOS ARM after 6.0. + if (isTargetWatchOS()) { + llvm::sys::path::append(P, "libclang_rt.cc_kext_watchos.a"); + } else if (isTargetTvOS()) { + llvm::sys::path::append(P, "libclang_rt.cc_kext_tvos.a"); + } else if (isTargetIPhoneOS()) { + llvm::sys::path::append(P, "libclang_rt.cc_kext_ios.a"); + } else { + llvm::sys::path::append(P, "libclang_rt.cc_kext.a"); + } + + // For now, allow missing resource libraries to support developers who may + // not have compiler-rt checked out or integrated into their build. + if (getVFS().exists(P)) + CmdArgs.push_back(Args.MakeArgString(P)); +} + +DerivedArgList *MachO::TranslateArgs(const DerivedArgList &Args, + StringRef BoundArch, + Action::OffloadKind) const { + DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs()); + const OptTable &Opts = getDriver().getOpts(); + + // FIXME: We really want to get out of the tool chain level argument + // translation business, as it makes the driver functionality much + // more opaque. For now, we follow gcc closely solely for the + // purpose of easily achieving feature parity & testability. Once we + // have something that works, we should reevaluate each translation + // and try to push it down into tool specific logic. + + for (Arg *A : Args) { + if (A->getOption().matches(options::OPT_Xarch__)) { + // Skip this argument unless the architecture matches either the toolchain + // triple arch, or the arch being bound. + llvm::Triple::ArchType XarchArch = + tools::darwin::getArchTypeForMachOArchName(A->getValue(0)); + if (!(XarchArch == getArch() || + (!BoundArch.empty() && + XarchArch == + tools::darwin::getArchTypeForMachOArchName(BoundArch)))) + continue; + + Arg *OriginalArg = A; + unsigned Index = Args.getBaseArgs().MakeIndex(A->getValue(1)); + unsigned Prev = Index; + std::unique_ptr<Arg> XarchArg(Opts.ParseOneArg(Args, Index)); + + // If the argument parsing failed or more than one argument was + // consumed, the -Xarch_ argument's parameter tried to consume + // extra arguments. Emit an error and ignore. + // + // We also want to disallow any options which would alter the + // driver behavior; that isn't going to work in our model. We + // use isDriverOption() as an approximation, although things + // like -O4 are going to slip through. + if (!XarchArg || Index > Prev + 1) { + getDriver().Diag(diag::err_drv_invalid_Xarch_argument_with_args) + << A->getAsString(Args); + continue; + } else if (XarchArg->getOption().hasFlag(options::DriverOption)) { + getDriver().Diag(diag::err_drv_invalid_Xarch_argument_isdriver) + << A->getAsString(Args); + continue; + } + + XarchArg->setBaseArg(A); + + A = XarchArg.release(); + DAL->AddSynthesizedArg(A); + + // Linker input arguments require custom handling. The problem is that we + // have already constructed the phase actions, so we can not treat them as + // "input arguments". + if (A->getOption().hasFlag(options::LinkerInput)) { + // Convert the argument into individual Zlinker_input_args. + for (const char *Value : A->getValues()) { + DAL->AddSeparateArg( + OriginalArg, Opts.getOption(options::OPT_Zlinker_input), Value); + } + continue; + } + } + + // Sob. These is strictly gcc compatible for the time being. Apple + // gcc translates options twice, which means that self-expanding + // options add duplicates. + switch ((options::ID)A->getOption().getID()) { + default: + DAL->append(A); + break; + + case options::OPT_mkernel: + case options::OPT_fapple_kext: + DAL->append(A); + DAL->AddFlagArg(A, Opts.getOption(options::OPT_static)); + break; + + case options::OPT_dependency_file: + DAL->AddSeparateArg(A, Opts.getOption(options::OPT_MF), A->getValue()); + break; + + case options::OPT_gfull: + DAL->AddFlagArg(A, Opts.getOption(options::OPT_g_Flag)); + DAL->AddFlagArg( + A, Opts.getOption(options::OPT_fno_eliminate_unused_debug_symbols)); + break; + + case options::OPT_gused: + DAL->AddFlagArg(A, Opts.getOption(options::OPT_g_Flag)); + DAL->AddFlagArg( + A, Opts.getOption(options::OPT_feliminate_unused_debug_symbols)); + break; + + case options::OPT_shared: + DAL->AddFlagArg(A, Opts.getOption(options::OPT_dynamiclib)); + break; + + case options::OPT_fconstant_cfstrings: + DAL->AddFlagArg(A, Opts.getOption(options::OPT_mconstant_cfstrings)); + break; + + case options::OPT_fno_constant_cfstrings: + DAL->AddFlagArg(A, Opts.getOption(options::OPT_mno_constant_cfstrings)); + break; + + case options::OPT_Wnonportable_cfstrings: + DAL->AddFlagArg(A, + Opts.getOption(options::OPT_mwarn_nonportable_cfstrings)); + break; + + case options::OPT_Wno_nonportable_cfstrings: + DAL->AddFlagArg( + A, Opts.getOption(options::OPT_mno_warn_nonportable_cfstrings)); + break; + + case options::OPT_fpascal_strings: + DAL->AddFlagArg(A, Opts.getOption(options::OPT_mpascal_strings)); + break; + + case options::OPT_fno_pascal_strings: + DAL->AddFlagArg(A, Opts.getOption(options::OPT_mno_pascal_strings)); + break; + } + } + + if (getTriple().getArch() == llvm::Triple::x86 || + getTriple().getArch() == llvm::Triple::x86_64) + if (!Args.hasArgNoClaim(options::OPT_mtune_EQ)) + DAL->AddJoinedArg(nullptr, Opts.getOption(options::OPT_mtune_EQ), + "core2"); + + // Add the arch options based on the particular spelling of -arch, to match + // how the driver driver works. + if (!BoundArch.empty()) { + StringRef Name = BoundArch; + const Option MCpu = Opts.getOption(options::OPT_mcpu_EQ); + const Option MArch = Opts.getOption(clang::driver::options::OPT_march_EQ); + + // This code must be kept in sync with LLVM's getArchTypeForDarwinArch, + // which defines the list of which architectures we accept. + if (Name == "ppc") + ; + else if (Name == "ppc601") + DAL->AddJoinedArg(nullptr, MCpu, "601"); + else if (Name == "ppc603") + DAL->AddJoinedArg(nullptr, MCpu, "603"); + else if (Name == "ppc604") + DAL->AddJoinedArg(nullptr, MCpu, "604"); + else if (Name == "ppc604e") + DAL->AddJoinedArg(nullptr, MCpu, "604e"); + else if (Name == "ppc750") + DAL->AddJoinedArg(nullptr, MCpu, "750"); + else if (Name == "ppc7400") + DAL->AddJoinedArg(nullptr, MCpu, "7400"); + else if (Name == "ppc7450") + DAL->AddJoinedArg(nullptr, MCpu, "7450"); + else if (Name == "ppc970") + DAL->AddJoinedArg(nullptr, MCpu, "970"); + + else if (Name == "ppc64" || Name == "ppc64le") + DAL->AddFlagArg(nullptr, Opts.getOption(options::OPT_m64)); + + else if (Name == "i386") + ; + else if (Name == "i486") + DAL->AddJoinedArg(nullptr, MArch, "i486"); + else if (Name == "i586") + DAL->AddJoinedArg(nullptr, MArch, "i586"); + else if (Name == "i686") + DAL->AddJoinedArg(nullptr, MArch, "i686"); + else if (Name == "pentium") + DAL->AddJoinedArg(nullptr, MArch, "pentium"); + else if (Name == "pentium2") + DAL->AddJoinedArg(nullptr, MArch, "pentium2"); + else if (Name == "pentpro") + DAL->AddJoinedArg(nullptr, MArch, "pentiumpro"); + else if (Name == "pentIIm3") + DAL->AddJoinedArg(nullptr, MArch, "pentium2"); + + else if (Name == "x86_64") + DAL->AddFlagArg(nullptr, Opts.getOption(options::OPT_m64)); + else if (Name == "x86_64h") { + DAL->AddFlagArg(nullptr, Opts.getOption(options::OPT_m64)); + DAL->AddJoinedArg(nullptr, MArch, "x86_64h"); + } + + else if (Name == "arm") + DAL->AddJoinedArg(nullptr, MArch, "armv4t"); + else if (Name == "armv4t") + DAL->AddJoinedArg(nullptr, MArch, "armv4t"); + else if (Name == "armv5") + DAL->AddJoinedArg(nullptr, MArch, "armv5tej"); + else if (Name == "xscale") + DAL->AddJoinedArg(nullptr, MArch, "xscale"); + else if (Name == "armv6") + DAL->AddJoinedArg(nullptr, MArch, "armv6k"); + else if (Name == "armv6m") + DAL->AddJoinedArg(nullptr, MArch, "armv6m"); + else if (Name == "armv7") + DAL->AddJoinedArg(nullptr, MArch, "armv7a"); + else if (Name == "armv7em") + DAL->AddJoinedArg(nullptr, MArch, "armv7em"); + else if (Name == "armv7k") + DAL->AddJoinedArg(nullptr, MArch, "armv7k"); + else if (Name == "armv7m") + DAL->AddJoinedArg(nullptr, MArch, "armv7m"); + else if (Name == "armv7s") + DAL->AddJoinedArg(nullptr, MArch, "armv7s"); + } + + return DAL; +} + +void MachO::AddLinkRuntimeLibArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + // Embedded targets are simple at the moment, not supporting sanitizers and + // with different libraries for each member of the product { static, PIC } x + // { hard-float, soft-float } + llvm::SmallString<32> CompilerRT = StringRef("libclang_rt."); + CompilerRT += + (tools::arm::getARMFloatABI(*this, Args) == tools::arm::FloatABI::Hard) + ? "hard" + : "soft"; + CompilerRT += Args.hasArg(options::OPT_fPIC) ? "_pic.a" : "_static.a"; + + AddLinkRuntimeLib(Args, CmdArgs, CompilerRT, false, true); +} + +bool Darwin::isAlignedAllocationUnavailable() const { + switch (TargetPlatform) { + case MacOS: // Earlier than 10.13. + return TargetVersion < VersionTuple(10U, 13U, 0U); + case IPhoneOS: + case IPhoneOSSimulator: + case TvOS: + case TvOSSimulator: // Earlier than 11.0. + return TargetVersion < VersionTuple(11U, 0U, 0U); + case WatchOS: + case WatchOSSimulator: // Earlier than 4.0. + return TargetVersion < VersionTuple(4U, 0U, 0U); + } + llvm_unreachable("Unsupported platform"); +} + +void Darwin::addClangTargetOptions(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args, + Action::OffloadKind DeviceOffloadKind) const { + if (isAlignedAllocationUnavailable()) + CC1Args.push_back("-faligned-alloc-unavailable"); +} + +DerivedArgList * +Darwin::TranslateArgs(const DerivedArgList &Args, StringRef BoundArch, + Action::OffloadKind DeviceOffloadKind) const { + // First get the generic Apple args, before moving onto Darwin-specific ones. + DerivedArgList *DAL = + MachO::TranslateArgs(Args, BoundArch, DeviceOffloadKind); + const OptTable &Opts = getDriver().getOpts(); + + // If no architecture is bound, none of the translations here are relevant. + if (BoundArch.empty()) + return DAL; + + // Add an explicit version min argument for the deployment target. We do this + // after argument translation because -Xarch_ arguments may add a version min + // argument. + AddDeploymentTarget(*DAL); + + // For iOS 6, undo the translation to add -static for -mkernel/-fapple-kext. + // FIXME: It would be far better to avoid inserting those -static arguments, + // but we can't check the deployment target in the translation code until + // it is set here. + if (isTargetWatchOSBased() || + (isTargetIOSBased() && !isIPhoneOSVersionLT(6, 0))) { + for (ArgList::iterator it = DAL->begin(), ie = DAL->end(); it != ie; ) { + Arg *A = *it; + ++it; + if (A->getOption().getID() != options::OPT_mkernel && + A->getOption().getID() != options::OPT_fapple_kext) + continue; + assert(it != ie && "unexpected argument translation"); + A = *it; + assert(A->getOption().getID() == options::OPT_static && + "missing expected -static argument"); + *it = nullptr; + ++it; + } + } + + if (!Args.getLastArg(options::OPT_stdlib_EQ) && + GetCXXStdlibType(Args) == ToolChain::CST_Libcxx) + DAL->AddJoinedArg(nullptr, Opts.getOption(options::OPT_stdlib_EQ), + "libc++"); + + // Validate the C++ standard library choice. + CXXStdlibType Type = GetCXXStdlibType(*DAL); + if (Type == ToolChain::CST_Libcxx) { + // Check whether the target provides libc++. + StringRef where; + + // Complain about targeting iOS < 5.0 in any way. + if (isTargetIOSBased() && isIPhoneOSVersionLT(5, 0)) + where = "iOS 5.0"; + + if (where != StringRef()) { + getDriver().Diag(clang::diag::err_drv_invalid_libcxx_deployment) << where; + } + } + + auto Arch = tools::darwin::getArchTypeForMachOArchName(BoundArch); + if ((Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb)) { + if (Args.hasFlag(options::OPT_fomit_frame_pointer, + options::OPT_fno_omit_frame_pointer, false)) + getDriver().Diag(clang::diag::warn_drv_unsupported_opt_for_target) + << "-fomit-frame-pointer" << BoundArch; + } + + return DAL; +} + +bool MachO::IsUnwindTablesDefault(const ArgList &Args) const { + // Unwind tables are not emitted if -fno-exceptions is supplied (except when + // targeting x86_64). + return getArch() == llvm::Triple::x86_64 || + (!UseSjLjExceptions(Args) && + Args.hasFlag(options::OPT_fexceptions, options::OPT_fno_exceptions, + true)); +} + +bool MachO::UseDwarfDebugFlags() const { + if (const char *S = ::getenv("RC_DEBUG_OPTIONS")) + return S[0] != '\0'; + return false; +} + +bool Darwin::UseSjLjExceptions(const ArgList &Args) const { + // Darwin uses SjLj exceptions on ARM. + if (getTriple().getArch() != llvm::Triple::arm && + getTriple().getArch() != llvm::Triple::thumb) + return false; + + // Only watchOS uses the new DWARF/Compact unwinding method. + llvm::Triple Triple(ComputeLLVMTriple(Args)); + return !Triple.isWatchABI(); +} + +bool Darwin::SupportsEmbeddedBitcode() const { + assert(TargetInitialized && "Target not initialized!"); + if (isTargetIPhoneOS() && isIPhoneOSVersionLT(6, 0)) + return false; + return true; +} + +bool MachO::isPICDefault() const { return true; } + +bool MachO::isPIEDefault() const { return false; } + +bool MachO::isPICDefaultForced() const { + return (getArch() == llvm::Triple::x86_64 || + getArch() == llvm::Triple::aarch64); +} + +bool MachO::SupportsProfiling() const { + // Profiling instrumentation is only supported on x86. + return getArch() == llvm::Triple::x86 || getArch() == llvm::Triple::x86_64; +} + +void Darwin::addMinVersionArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + VersionTuple TargetVersion = getTargetVersion(); + + if (isTargetWatchOS()) + CmdArgs.push_back("-watchos_version_min"); + else if (isTargetWatchOSSimulator()) + CmdArgs.push_back("-watchos_simulator_version_min"); + else if (isTargetTvOS()) + CmdArgs.push_back("-tvos_version_min"); + else if (isTargetTvOSSimulator()) + CmdArgs.push_back("-tvos_simulator_version_min"); + else if (isTargetIOSSimulator()) + CmdArgs.push_back("-ios_simulator_version_min"); + else if (isTargetIOSBased()) + CmdArgs.push_back("-iphoneos_version_min"); + else { + assert(isTargetMacOS() && "unexpected target"); + CmdArgs.push_back("-macosx_version_min"); + } + + CmdArgs.push_back(Args.MakeArgString(TargetVersion.getAsString())); +} + +void Darwin::addStartObjectFileArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + // Derived from startfile spec. + if (Args.hasArg(options::OPT_dynamiclib)) { + // Derived from darwin_dylib1 spec. + if (isTargetWatchOSBased()) { + ; // watchOS does not need dylib1.o. + } else if (isTargetIOSSimulator()) { + ; // iOS simulator does not need dylib1.o. + } else if (isTargetIPhoneOS()) { + if (isIPhoneOSVersionLT(3, 1)) + CmdArgs.push_back("-ldylib1.o"); + } else { + if (isMacosxVersionLT(10, 5)) + CmdArgs.push_back("-ldylib1.o"); + else if (isMacosxVersionLT(10, 6)) + CmdArgs.push_back("-ldylib1.10.5.o"); + } + } else { + if (Args.hasArg(options::OPT_bundle)) { + if (!Args.hasArg(options::OPT_static)) { + // Derived from darwin_bundle1 spec. + if (isTargetWatchOSBased()) { + ; // watchOS does not need bundle1.o. + } else if (isTargetIOSSimulator()) { + ; // iOS simulator does not need bundle1.o. + } else if (isTargetIPhoneOS()) { + if (isIPhoneOSVersionLT(3, 1)) + CmdArgs.push_back("-lbundle1.o"); + } else { + if (isMacosxVersionLT(10, 6)) + CmdArgs.push_back("-lbundle1.o"); + } + } + } else { + if (Args.hasArg(options::OPT_pg) && SupportsProfiling()) { + if (Args.hasArg(options::OPT_static) || + Args.hasArg(options::OPT_object) || + Args.hasArg(options::OPT_preload)) { + CmdArgs.push_back("-lgcrt0.o"); + } else { + CmdArgs.push_back("-lgcrt1.o"); + + // darwin_crt2 spec is empty. + } + // By default on OS X 10.8 and later, we don't link with a crt1.o + // file and the linker knows to use _main as the entry point. But, + // when compiling with -pg, we need to link with the gcrt1.o file, + // so pass the -no_new_main option to tell the linker to use the + // "start" symbol as the entry point. + if (isTargetMacOS() && !isMacosxVersionLT(10, 8)) + CmdArgs.push_back("-no_new_main"); + } else { + if (Args.hasArg(options::OPT_static) || + Args.hasArg(options::OPT_object) || + Args.hasArg(options::OPT_preload)) { + CmdArgs.push_back("-lcrt0.o"); + } else { + // Derived from darwin_crt1 spec. + if (isTargetWatchOSBased()) { + ; // watchOS does not need crt1.o. + } else if (isTargetIOSSimulator()) { + ; // iOS simulator does not need crt1.o. + } else if (isTargetIPhoneOS()) { + if (getArch() == llvm::Triple::aarch64) + ; // iOS does not need any crt1 files for arm64 + else if (isIPhoneOSVersionLT(3, 1)) + CmdArgs.push_back("-lcrt1.o"); + else if (isIPhoneOSVersionLT(6, 0)) + CmdArgs.push_back("-lcrt1.3.1.o"); + } else { + if (isMacosxVersionLT(10, 5)) + CmdArgs.push_back("-lcrt1.o"); + else if (isMacosxVersionLT(10, 6)) + CmdArgs.push_back("-lcrt1.10.5.o"); + else if (isMacosxVersionLT(10, 8)) + CmdArgs.push_back("-lcrt1.10.6.o"); + + // darwin_crt2 spec is empty. + } + } + } + } + } + + if (!isTargetIPhoneOS() && Args.hasArg(options::OPT_shared_libgcc) && + !isTargetWatchOS() && + isMacosxVersionLT(10, 5)) { + const char *Str = Args.MakeArgString(GetFilePath("crt3.o")); + CmdArgs.push_back(Str); + } +} + +bool Darwin::SupportsObjCGC() const { return isTargetMacOS(); } + +void Darwin::CheckObjCARC() const { + if (isTargetIOSBased() || isTargetWatchOSBased() || + (isTargetMacOS() && !isMacosxVersionLT(10, 6))) + return; + getDriver().Diag(diag::err_arc_unsupported_on_toolchain); +} + +SanitizerMask Darwin::getSupportedSanitizers() const { + const bool IsX86_64 = getTriple().getArch() == llvm::Triple::x86_64; + SanitizerMask Res = ToolChain::getSupportedSanitizers(); + Res |= SanitizerKind::Address; + Res |= SanitizerKind::Leak; + Res |= SanitizerKind::Fuzzer; + if (isTargetMacOS()) { + if (!isMacosxVersionLT(10, 9)) + Res |= SanitizerKind::Vptr; + Res |= SanitizerKind::SafeStack; + if (IsX86_64) + Res |= SanitizerKind::Thread; + } else if (isTargetIOSSimulator() || isTargetTvOSSimulator()) { + if (IsX86_64) + Res |= SanitizerKind::Thread; + } + return Res; +} + +void Darwin::printVerboseInfo(raw_ostream &OS) const { + CudaInstallation.print(OS); +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Darwin.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Darwin.h new file mode 100644 index 0000000..77c569e --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Darwin.h @@ -0,0 +1,499 @@ +//===--- Darwin.h - Darwin ToolChain Implementations ------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_DARWIN_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_DARWIN_H + +#include "Cuda.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { + +namespace toolchains { +class MachO; +} // end namespace toolchains + +namespace tools { + +namespace darwin { +llvm::Triple::ArchType getArchTypeForMachOArchName(StringRef Str); +void setTripleTypeForMachOArchName(llvm::Triple &T, StringRef Str); + +class LLVM_LIBRARY_VISIBILITY MachOTool : public Tool { + virtual void anchor(); + +protected: + void AddMachOArch(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const; + + const toolchains::MachO &getMachOToolChain() const { + return reinterpret_cast<const toolchains::MachO &>(getToolChain()); + } + +public: + MachOTool( + const char *Name, const char *ShortName, const ToolChain &TC, + ResponseFileSupport ResponseSupport = RF_None, + llvm::sys::WindowsEncodingMethod ResponseEncoding = llvm::sys::WEM_UTF8, + const char *ResponseFlag = "@") + : Tool(Name, ShortName, TC, ResponseSupport, ResponseEncoding, + ResponseFlag) {} +}; + +class LLVM_LIBRARY_VISIBILITY Assembler : public MachOTool { +public: + Assembler(const ToolChain &TC) + : MachOTool("darwin::Assembler", "assembler", TC) {} + + bool hasIntegratedCPP() const override { return false; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +class LLVM_LIBRARY_VISIBILITY Linker : public MachOTool { + bool NeedsTempPath(const InputInfoList &Inputs) const; + void AddLinkArgs(Compilation &C, const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs, + const InputInfoList &Inputs) const; + +public: + Linker(const ToolChain &TC) + : MachOTool("darwin::Linker", "linker", TC, RF_FileList, + llvm::sys::WEM_UTF8, "-filelist") {} + + bool hasIntegratedCPP() const override { return false; } + bool isLinkJob() const override { return true; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +class LLVM_LIBRARY_VISIBILITY Lipo : public MachOTool { +public: + Lipo(const ToolChain &TC) : MachOTool("darwin::Lipo", "lipo", TC) {} + + bool hasIntegratedCPP() const override { return false; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +class LLVM_LIBRARY_VISIBILITY Dsymutil : public MachOTool { +public: + Dsymutil(const ToolChain &TC) + : MachOTool("darwin::Dsymutil", "dsymutil", TC) {} + + bool hasIntegratedCPP() const override { return false; } + bool isDsymutilJob() const override { return true; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +class LLVM_LIBRARY_VISIBILITY VerifyDebug : public MachOTool { +public: + VerifyDebug(const ToolChain &TC) + : MachOTool("darwin::VerifyDebug", "dwarfdump", TC) {} + + bool hasIntegratedCPP() const override { return false; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; +} // end namespace darwin +} // end namespace tools + +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY MachO : public ToolChain { +protected: + Tool *buildAssembler() const override; + Tool *buildLinker() const override; + Tool *getTool(Action::ActionClass AC) const override; + +private: + mutable std::unique_ptr<tools::darwin::Lipo> Lipo; + mutable std::unique_ptr<tools::darwin::Dsymutil> Dsymutil; + mutable std::unique_ptr<tools::darwin::VerifyDebug> VerifyDebug; + +public: + MachO(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + ~MachO() override; + + /// @name MachO specific toolchain API + /// { + + /// Get the "MachO" arch name for a particular compiler invocation. For + /// example, Apple treats different ARM variations as distinct architectures. + StringRef getMachOArchName(const llvm::opt::ArgList &Args) const; + + /// Add the linker arguments to link the ARC runtime library. + virtual void AddLinkARCArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const {} + + /// Add the linker arguments to link the compiler runtime library. + virtual void AddLinkRuntimeLibArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const; + virtual void AddFuzzerLinkArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const; + + virtual void addStartObjectFileArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const { + } + + virtual void addMinVersionArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const {} + + /// On some iOS platforms, kernel and kernel modules were built statically. Is + /// this such a target? + virtual bool isKernelStatic() const { return false; } + + /// Is the target either iOS or an iOS simulator? + bool isTargetIOSBased() const { return false; } + + void AddLinkRuntimeLib(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs, + StringRef DarwinLibName, bool AlwaysLink = false, + bool IsEmbedded = false, bool AddRPath = false) const; + + /// Add any profiling runtime libraries that are needed. This is essentially a + /// MachO specific version of addProfileRT in Tools.cpp. + void addProfileRTLibs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const override { + // There aren't any profiling libs for embedded targets currently. + } + + /// } + /// @name ToolChain Implementation + /// { + + types::ID LookupTypeForExtension(StringRef Ext) const override; + + bool HasNativeLLVMSupport() const override; + + llvm::opt::DerivedArgList * + TranslateArgs(const llvm::opt::DerivedArgList &Args, StringRef BoundArch, + Action::OffloadKind DeviceOffloadKind) const override; + + bool IsBlocksDefault() const override { + // Always allow blocks on Apple; users interested in versioning are + // expected to use /usr/include/Block.h. + return true; + } + bool IsIntegratedAssemblerDefault() const override { + // Default integrated assembler to on for Apple's MachO targets. + return true; + } + + bool IsMathErrnoDefault() const override { return false; } + + bool IsEncodeExtendedBlockSignatureDefault() const override { return true; } + + bool IsObjCNonFragileABIDefault() const override { + // Non-fragile ABI is default for everything but i386. + return getTriple().getArch() != llvm::Triple::x86; + } + + bool UseObjCMixedDispatch() const override { return true; } + + bool IsUnwindTablesDefault(const llvm::opt::ArgList &Args) const override; + + RuntimeLibType GetDefaultRuntimeLibType() const override { + return ToolChain::RLT_CompilerRT; + } + + bool isPICDefault() const override; + bool isPIEDefault() const override; + bool isPICDefaultForced() const override; + + bool SupportsProfiling() const override; + + bool SupportsObjCGC() const override { return false; } + + bool UseDwarfDebugFlags() const override; + + bool UseSjLjExceptions(const llvm::opt::ArgList &Args) const override { + return false; + } + + /// } +}; + +/// Darwin - The base Darwin tool chain. +class LLVM_LIBRARY_VISIBILITY Darwin : public MachO { +public: + /// Whether the information on the target has been initialized. + // + // FIXME: This should be eliminated. What we want to do is make this part of + // the "default target for arguments" selection process, once we get out of + // the argument translation business. + mutable bool TargetInitialized; + + enum DarwinPlatformKind { + MacOS, + IPhoneOS, + IPhoneOSSimulator, + TvOS, + TvOSSimulator, + WatchOS, + WatchOSSimulator + }; + + mutable DarwinPlatformKind TargetPlatform; + + /// The OS version we are targeting. + mutable VersionTuple TargetVersion; + + CudaInstallationDetector CudaInstallation; + +private: + void AddDeploymentTarget(llvm::opt::DerivedArgList &Args) const; + +public: + Darwin(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + ~Darwin() override; + + std::string ComputeEffectiveClangTriple(const llvm::opt::ArgList &Args, + types::ID InputType) const override; + + /// @name Apple Specific Toolchain Implementation + /// { + + void addMinVersionArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const override; + + void addStartObjectFileArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const override; + + bool isKernelStatic() const override { + return (!(isTargetIPhoneOS() && !isIPhoneOSVersionLT(6, 0)) && + !isTargetWatchOS()); + } + + void addProfileRTLibs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const override; + +protected: + /// } + /// @name Darwin specific Toolchain functions + /// { + + // FIXME: Eliminate these ...Target functions and derive separate tool chains + // for these targets and put version in constructor. + void setTarget(DarwinPlatformKind Platform, unsigned Major, unsigned Minor, + unsigned Micro) const { + // FIXME: For now, allow reinitialization as long as values don't + // change. This will go away when we move away from argument translation. + if (TargetInitialized && TargetPlatform == Platform && + TargetVersion == VersionTuple(Major, Minor, Micro)) + return; + + assert(!TargetInitialized && "Target already initialized!"); + TargetInitialized = true; + TargetPlatform = Platform; + TargetVersion = VersionTuple(Major, Minor, Micro); + } + + bool isTargetIPhoneOS() const { + assert(TargetInitialized && "Target not initialized!"); + return TargetPlatform == IPhoneOS || TargetPlatform == TvOS; + } + + bool isTargetIOSSimulator() const { + assert(TargetInitialized && "Target not initialized!"); + return TargetPlatform == IPhoneOSSimulator || + TargetPlatform == TvOSSimulator; + } + + bool isTargetIOSBased() const { + assert(TargetInitialized && "Target not initialized!"); + return isTargetIPhoneOS() || isTargetIOSSimulator(); + } + + bool isTargetTvOS() const { + assert(TargetInitialized && "Target not initialized!"); + return TargetPlatform == TvOS; + } + + bool isTargetTvOSSimulator() const { + assert(TargetInitialized && "Target not initialized!"); + return TargetPlatform == TvOSSimulator; + } + + bool isTargetTvOSBased() const { + assert(TargetInitialized && "Target not initialized!"); + return TargetPlatform == TvOS || TargetPlatform == TvOSSimulator; + } + + bool isTargetWatchOS() const { + assert(TargetInitialized && "Target not initialized!"); + return TargetPlatform == WatchOS; + } + + bool isTargetWatchOSSimulator() const { + assert(TargetInitialized && "Target not initialized!"); + return TargetPlatform == WatchOSSimulator; + } + + bool isTargetWatchOSBased() const { + assert(TargetInitialized && "Target not initialized!"); + return TargetPlatform == WatchOS || TargetPlatform == WatchOSSimulator; + } + + bool isTargetMacOS() const { + assert(TargetInitialized && "Target not initialized!"); + return TargetPlatform == MacOS; + } + + bool isTargetInitialized() const { return TargetInitialized; } + + VersionTuple getTargetVersion() const { + assert(TargetInitialized && "Target not initialized!"); + return TargetVersion; + } + + bool isIPhoneOSVersionLT(unsigned V0, unsigned V1 = 0, + unsigned V2 = 0) const { + assert(isTargetIOSBased() && "Unexpected call for non iOS target!"); + return TargetVersion < VersionTuple(V0, V1, V2); + } + + bool isMacosxVersionLT(unsigned V0, unsigned V1 = 0, unsigned V2 = 0) const { + assert(isTargetMacOS() && "Unexpected call for non OS X target!"); + return TargetVersion < VersionTuple(V0, V1, V2); + } + + /// Return true if c++17 aligned allocation/deallocation functions are not + /// implemented in the c++ standard library of the deployment target we are + /// targeting. + bool isAlignedAllocationUnavailable() const; + + void addClangTargetOptions(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args, + Action::OffloadKind DeviceOffloadKind) const override; + + StringRef getPlatformFamily() const; + static StringRef getSDKName(StringRef isysroot); + StringRef getOSLibraryNameSuffix() const; + +public: + /// } + /// @name ToolChain Implementation + /// { + + // Darwin tools support multiple architecture (e.g., i386 and x86_64) and + // most development is done against SDKs, so compiling for a different + // architecture should not get any special treatment. + bool isCrossCompiling() const override { return false; } + + llvm::opt::DerivedArgList * + TranslateArgs(const llvm::opt::DerivedArgList &Args, StringRef BoundArch, + Action::OffloadKind DeviceOffloadKind) const override; + + CXXStdlibType GetDefaultCXXStdlibType() const override; + ObjCRuntime getDefaultObjCRuntime(bool isNonFragile) const override; + bool hasBlocksRuntime() const override; + + void AddCudaIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + + bool UseObjCMixedDispatch() const override { + // This is only used with the non-fragile ABI and non-legacy dispatch. + + // Mixed dispatch is used everywhere except OS X before 10.6. + return !(isTargetMacOS() && isMacosxVersionLT(10, 6)); + } + + unsigned GetDefaultStackProtectorLevel(bool KernelOrKext) const override { + // Stack protectors default to on for user code on 10.5, + // and for everything in 10.6 and beyond + if (isTargetIOSBased() || isTargetWatchOSBased()) + return 1; + else if (isTargetMacOS() && !isMacosxVersionLT(10, 6)) + return 1; + else if (isTargetMacOS() && !isMacosxVersionLT(10, 5) && !KernelOrKext) + return 1; + + return 0; + } + + bool SupportsObjCGC() const override; + + void CheckObjCARC() const override; + + bool UseSjLjExceptions(const llvm::opt::ArgList &Args) const override; + + bool SupportsEmbeddedBitcode() const override; + + SanitizerMask getSupportedSanitizers() const override; + + void printVerboseInfo(raw_ostream &OS) const override; +}; + +/// DarwinClang - The Darwin toolchain used by Clang. +class LLVM_LIBRARY_VISIBILITY DarwinClang : public Darwin { +public: + DarwinClang(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + + /// @name Apple ToolChain Implementation + /// { + + RuntimeLibType GetRuntimeLibType(const llvm::opt::ArgList &Args) const override; + + void AddLinkRuntimeLibArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const override; + + void AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const override; + + void AddCCKextLibArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const override; + + void addClangWarningOptions(llvm::opt::ArgStringList &CC1Args) const override; + + void AddLinkARCArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const override; + + unsigned GetDefaultDwarfVersion() const override; + // Until dtrace (via CTF) and LLDB can deal with distributed debug info, + // Darwin defaults to standalone/full debug info. + bool GetDefaultStandaloneDebug() const override { return true; } + llvm::DebuggerKind getDefaultDebuggerTuning() const override { + return llvm::DebuggerKind::LLDB; + } + + /// } + +private: + void AddLinkSanitizerLibArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs, + StringRef Sanitizer) const; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_DARWIN_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/DragonFly.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/DragonFly.cpp new file mode 100644 index 0000000..bd2c7fc --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/DragonFly.cpp @@ -0,0 +1,197 @@ +//===--- DragonFly.cpp - DragonFly ToolChain Implementations ----*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "DragonFly.h" +#include "CommonArgs.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/Options.h" +#include "llvm/Option/ArgList.h" + +using namespace clang::driver; +using namespace clang::driver::tools; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +/// DragonFly Tools + +// For now, DragonFly Assemble does just about the same as for +// FreeBSD, but this may change soon. +void dragonfly::Assembler::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + claimNoWarnArgs(Args); + ArgStringList CmdArgs; + + // When building 32-bit code on DragonFly/pc64, we have to explicitly + // instruct as in the base system to assemble 32-bit code. + if (getToolChain().getArch() == llvm::Triple::x86) + CmdArgs.push_back("--32"); + + Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + for (const auto &II : Inputs) + CmdArgs.push_back(II.getFilename()); + + const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as")); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +void dragonfly::Linker::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + const Driver &D = getToolChain().getDriver(); + ArgStringList CmdArgs; + + if (!D.SysRoot.empty()) + CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); + + CmdArgs.push_back("--eh-frame-hdr"); + if (Args.hasArg(options::OPT_static)) { + CmdArgs.push_back("-Bstatic"); + } else { + if (Args.hasArg(options::OPT_rdynamic)) + CmdArgs.push_back("-export-dynamic"); + if (Args.hasArg(options::OPT_shared)) + CmdArgs.push_back("-Bshareable"); + else { + CmdArgs.push_back("-dynamic-linker"); + CmdArgs.push_back("/usr/libexec/ld-elf.so.2"); + } + CmdArgs.push_back("--hash-style=gnu"); + CmdArgs.push_back("--enable-new-dtags"); + } + + // When building 32-bit code on DragonFly/pc64, we have to explicitly + // instruct ld in the base system to link 32-bit code. + if (getToolChain().getArch() == llvm::Triple::x86) { + CmdArgs.push_back("-m"); + CmdArgs.push_back("elf_i386"); + } + + if (Output.isFilename()) { + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + } else { + assert(Output.isNothing() && "Invalid output."); + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + if (!Args.hasArg(options::OPT_shared)) { + if (Args.hasArg(options::OPT_pg)) + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("gcrt1.o"))); + else { + if (Args.hasArg(options::OPT_pie)) + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("Scrt1.o"))); + else + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crt1.o"))); + } + } + CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crti.o"))); + if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie)) + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtbeginS.o"))); + else + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o"))); + } + + Args.AddAllArgs(CmdArgs, + {options::OPT_L, options::OPT_T_Group, options::OPT_e}); + + AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { + CmdArgs.push_back("-L/usr/lib/gcc50"); + + if (!Args.hasArg(options::OPT_static)) { + CmdArgs.push_back("-rpath"); + CmdArgs.push_back("/usr/lib/gcc50"); + } + + if (D.CCCIsCXX()) { + getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs); + CmdArgs.push_back("-lm"); + } + + if (Args.hasArg(options::OPT_pthread)) + CmdArgs.push_back("-lpthread"); + + if (!Args.hasArg(options::OPT_nolibc)) { + CmdArgs.push_back("-lc"); + } + + if (Args.hasArg(options::OPT_static) || + Args.hasArg(options::OPT_static_libgcc)) { + CmdArgs.push_back("-lgcc"); + CmdArgs.push_back("-lgcc_eh"); + } else { + if (Args.hasArg(options::OPT_shared_libgcc)) { + CmdArgs.push_back("-lgcc_pic"); + if (!Args.hasArg(options::OPT_shared)) + CmdArgs.push_back("-lgcc"); + } else { + CmdArgs.push_back("-lgcc"); + CmdArgs.push_back("--as-needed"); + CmdArgs.push_back("-lgcc_pic"); + CmdArgs.push_back("--no-as-needed"); + } + } + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie)) + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtendS.o"))); + else + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtend.o"))); + CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crtn.o"))); + } + + getToolChain().addProfileRTLibs(Args, CmdArgs); + + const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath()); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +/// DragonFly - DragonFly tool chain which can call as(1) and ld(1) directly. + +DragonFly::DragonFly(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : Generic_ELF(D, Triple, Args) { + + // Path mangling to find libexec + getProgramPaths().push_back(getDriver().getInstalledDir()); + if (getDriver().getInstalledDir() != getDriver().Dir) + getProgramPaths().push_back(getDriver().Dir); + + getFilePaths().push_back(getDriver().Dir + "/../lib"); + getFilePaths().push_back("/usr/lib"); + getFilePaths().push_back("/usr/lib/gcc50"); +} + +Tool *DragonFly::buildAssembler() const { + return new tools::dragonfly::Assembler(*this); +} + +Tool *DragonFly::buildLinker() const { + return new tools::dragonfly::Linker(*this); +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/DragonFly.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/DragonFly.h new file mode 100644 index 0000000..9a06fbd --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/DragonFly.h @@ -0,0 +1,68 @@ +//===--- DragonFly.h - DragonFly ToolChain Implementations ------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_DRAGONFLY_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_DRAGONFLY_H + +#include "Gnu.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace tools { +/// dragonfly -- Directly call GNU Binutils assembler and linker +namespace dragonfly { +class LLVM_LIBRARY_VISIBILITY Assembler : public GnuTool { +public: + Assembler(const ToolChain &TC) + : GnuTool("dragonfly::Assembler", "assembler", TC) {} + + bool hasIntegratedCPP() const override { return false; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +class LLVM_LIBRARY_VISIBILITY Linker : public GnuTool { +public: + Linker(const ToolChain &TC) : GnuTool("dragonfly::Linker", "linker", TC) {} + + bool hasIntegratedCPP() const override { return false; } + bool isLinkJob() const override { return true; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; +} // end namespace dragonfly +} // end namespace tools + +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY DragonFly : public Generic_ELF { +public: + DragonFly(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + + bool IsMathErrnoDefault() const override { return false; } + +protected: + Tool *buildAssembler() const override; + Tool *buildLinker() const override; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_DRAGONFLY_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/FreeBSD.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/FreeBSD.cpp new file mode 100644 index 0000000..c6626e9 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/FreeBSD.cpp @@ -0,0 +1,395 @@ +//===--- FreeBSD.cpp - FreeBSD ToolChain Implementations --------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "FreeBSD.h" +#include "Arch/ARM.h" +#include "Arch/Mips.h" +#include "Arch/Sparc.h" +#include "CommonArgs.h" +#include "clang/Basic/VirtualFileSystem.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Options.h" +#include "clang/Driver/SanitizerArgs.h" +#include "llvm/Option/ArgList.h" + +using namespace clang::driver; +using namespace clang::driver::tools; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +void freebsd::Assembler::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + claimNoWarnArgs(Args); + ArgStringList CmdArgs; + + // When building 32-bit code on FreeBSD/amd64, we have to explicitly + // instruct as in the base system to assemble 32-bit code. + switch (getToolChain().getArch()) { + default: + break; + case llvm::Triple::x86: + CmdArgs.push_back("--32"); + break; + case llvm::Triple::ppc: + CmdArgs.push_back("-a32"); + break; + case llvm::Triple::mips: + case llvm::Triple::mipsel: + case llvm::Triple::mips64: + case llvm::Triple::mips64el: { + StringRef CPUName; + StringRef ABIName; + mips::getMipsCPUAndABI(Args, getToolChain().getTriple(), CPUName, ABIName); + + CmdArgs.push_back("-march"); + CmdArgs.push_back(CPUName.data()); + + CmdArgs.push_back("-mabi"); + CmdArgs.push_back(mips::getGnuCompatibleMipsABIName(ABIName).data()); + + if (getToolChain().getArch() == llvm::Triple::mips || + getToolChain().getArch() == llvm::Triple::mips64) + CmdArgs.push_back("-EB"); + else + CmdArgs.push_back("-EL"); + + if (Arg *A = Args.getLastArg(options::OPT_G)) { + StringRef v = A->getValue(); + CmdArgs.push_back(Args.MakeArgString("-G" + v)); + A->claim(); + } + + AddAssemblerKPIC(getToolChain(), Args, CmdArgs); + break; + } + case llvm::Triple::arm: + case llvm::Triple::armeb: + case llvm::Triple::thumb: + case llvm::Triple::thumbeb: { + arm::FloatABI ABI = arm::getARMFloatABI(getToolChain(), Args); + + if (ABI == arm::FloatABI::Hard) + CmdArgs.push_back("-mfpu=vfp"); + else + CmdArgs.push_back("-mfpu=softvfp"); + + switch (getToolChain().getTriple().getEnvironment()) { + case llvm::Triple::GNUEABIHF: + case llvm::Triple::GNUEABI: + case llvm::Triple::EABI: + CmdArgs.push_back("-meabi=5"); + break; + + default: + CmdArgs.push_back("-matpcs"); + } + break; + } + case llvm::Triple::sparc: + case llvm::Triple::sparcel: + case llvm::Triple::sparcv9: { + std::string CPU = getCPUName(Args, getToolChain().getTriple()); + CmdArgs.push_back(sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple())); + AddAssemblerKPIC(getToolChain(), Args, CmdArgs); + break; + } + } + + Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + for (const auto &II : Inputs) + CmdArgs.push_back(II.getFilename()); + + const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as")); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +void freebsd::Linker::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + const toolchains::FreeBSD &ToolChain = + static_cast<const toolchains::FreeBSD &>(getToolChain()); + const Driver &D = ToolChain.getDriver(); + const llvm::Triple::ArchType Arch = ToolChain.getArch(); + const bool IsPIE = + !Args.hasArg(options::OPT_shared) && + (Args.hasArg(options::OPT_pie) || ToolChain.isPIEDefault()); + ArgStringList CmdArgs; + + // Silence warning for "clang -g foo.o -o foo" + Args.ClaimAllArgs(options::OPT_g_Group); + // and "clang -emit-llvm foo.o -o foo" + Args.ClaimAllArgs(options::OPT_emit_llvm); + // and for "clang -w foo.o -o foo". Other warning options are already + // handled somewhere else. + Args.ClaimAllArgs(options::OPT_w); + + if (!D.SysRoot.empty()) + CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); + + if (IsPIE) + CmdArgs.push_back("-pie"); + + CmdArgs.push_back("--eh-frame-hdr"); + if (Args.hasArg(options::OPT_static)) { + CmdArgs.push_back("-Bstatic"); + } else { + if (Args.hasArg(options::OPT_rdynamic)) + CmdArgs.push_back("-export-dynamic"); + if (Args.hasArg(options::OPT_shared)) { + CmdArgs.push_back("-Bshareable"); + } else { + CmdArgs.push_back("-dynamic-linker"); + CmdArgs.push_back("/libexec/ld-elf.so.1"); + } + if (ToolChain.getTriple().getOSMajorVersion() >= 9) { + if (Arch == llvm::Triple::arm || Arch == llvm::Triple::sparc || + Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64) { + CmdArgs.push_back("--hash-style=both"); + } + } + CmdArgs.push_back("--enable-new-dtags"); + } + + // When building 32-bit code on FreeBSD/amd64, we have to explicitly + // instruct ld in the base system to link 32-bit code. + if (Arch == llvm::Triple::x86) { + CmdArgs.push_back("-m"); + CmdArgs.push_back("elf_i386_fbsd"); + } + + if (Arch == llvm::Triple::ppc) { + CmdArgs.push_back("-m"); + CmdArgs.push_back("elf32ppc_fbsd"); + } + + if (Arg *A = Args.getLastArg(options::OPT_G)) { + if (ToolChain.getArch() == llvm::Triple::mips || + ToolChain.getArch() == llvm::Triple::mipsel || + ToolChain.getArch() == llvm::Triple::mips64 || + ToolChain.getArch() == llvm::Triple::mips64el) { + StringRef v = A->getValue(); + CmdArgs.push_back(Args.MakeArgString("-G" + v)); + A->claim(); + } + } + + if (Output.isFilename()) { + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + } else { + assert(Output.isNothing() && "Invalid output."); + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + const char *crt1 = nullptr; + if (!Args.hasArg(options::OPT_shared)) { + if (Args.hasArg(options::OPT_pg)) + crt1 = "gcrt1.o"; + else if (IsPIE) + crt1 = "Scrt1.o"; + else + crt1 = "crt1.o"; + } + if (crt1) + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crt1))); + + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o"))); + + const char *crtbegin = nullptr; + if (Args.hasArg(options::OPT_static)) + crtbegin = "crtbeginT.o"; + else if (Args.hasArg(options::OPT_shared) || IsPIE) + crtbegin = "crtbeginS.o"; + else + crtbegin = "crtbegin.o"; + + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crtbegin))); + } + + Args.AddAllArgs(CmdArgs, options::OPT_L); + ToolChain.AddFilePathLibArgs(Args, CmdArgs); + Args.AddAllArgs(CmdArgs, options::OPT_T_Group); + Args.AddAllArgs(CmdArgs, options::OPT_e); + Args.AddAllArgs(CmdArgs, options::OPT_s); + Args.AddAllArgs(CmdArgs, options::OPT_t); + Args.AddAllArgs(CmdArgs, options::OPT_Z_Flag); + Args.AddAllArgs(CmdArgs, options::OPT_r); + + if (D.isUsingLTO()) + AddGoldPlugin(ToolChain, Args, CmdArgs, D.getLTOMode() == LTOK_Thin, D); + + bool NeedsSanitizerDeps = addSanitizerRuntimes(ToolChain, Args, CmdArgs); + AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { + addOpenMPRuntime(CmdArgs, ToolChain, Args); + if (D.CCCIsCXX()) { + ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs); + if (Args.hasArg(options::OPT_pg)) + CmdArgs.push_back("-lm_p"); + else + CmdArgs.push_back("-lm"); + } + if (NeedsSanitizerDeps) + linkSanitizerRuntimeDeps(ToolChain, CmdArgs); + // FIXME: For some reason GCC passes -lgcc and -lgcc_s before adding + // the default system libraries. Just mimic this for now. + if (Args.hasArg(options::OPT_pg)) + CmdArgs.push_back("-lgcc_p"); + else + CmdArgs.push_back("-lgcc"); + if (Args.hasArg(options::OPT_static)) { + CmdArgs.push_back("-lgcc_eh"); + } else if (Args.hasArg(options::OPT_pg)) { + CmdArgs.push_back("-lgcc_eh_p"); + } else { + CmdArgs.push_back("--as-needed"); + CmdArgs.push_back("-lgcc_s"); + CmdArgs.push_back("--no-as-needed"); + } + + if (Args.hasArg(options::OPT_pthread)) { + if (Args.hasArg(options::OPT_pg)) + CmdArgs.push_back("-lpthread_p"); + else + CmdArgs.push_back("-lpthread"); + } + + if (Args.hasArg(options::OPT_pg)) { + if (Args.hasArg(options::OPT_shared)) + CmdArgs.push_back("-lc"); + else + CmdArgs.push_back("-lc_p"); + CmdArgs.push_back("-lgcc_p"); + } else { + CmdArgs.push_back("-lc"); + CmdArgs.push_back("-lgcc"); + } + + if (Args.hasArg(options::OPT_static)) { + CmdArgs.push_back("-lgcc_eh"); + } else if (Args.hasArg(options::OPT_pg)) { + CmdArgs.push_back("-lgcc_eh_p"); + } else { + CmdArgs.push_back("--as-needed"); + CmdArgs.push_back("-lgcc_s"); + CmdArgs.push_back("--no-as-needed"); + } + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + if (Args.hasArg(options::OPT_shared) || IsPIE) + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtendS.o"))); + else + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtend.o"))); + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o"))); + } + + ToolChain.addProfileRTLibs(Args, CmdArgs); + + const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath()); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +/// FreeBSD - FreeBSD tool chain which can call as(1) and ld(1) directly. + +FreeBSD::FreeBSD(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : Generic_ELF(D, Triple, Args) { + + // When targeting 32-bit platforms, look for '/usr/lib32/crt1.o' and fall + // back to '/usr/lib' if it doesn't exist. + if ((Triple.getArch() == llvm::Triple::x86 || + Triple.getArch() == llvm::Triple::ppc) && + D.getVFS().exists(getDriver().SysRoot + "/usr/lib32/crt1.o")) + getFilePaths().push_back(getDriver().SysRoot + "/usr/lib32"); + else + getFilePaths().push_back(getDriver().SysRoot + "/usr/lib"); +} + +ToolChain::CXXStdlibType FreeBSD::GetDefaultCXXStdlibType() const { + if (getTriple().getOSMajorVersion() >= 10) + return ToolChain::CST_Libcxx; + return ToolChain::CST_Libstdcxx; +} + +void FreeBSD::addLibStdCxxIncludePaths( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const { + addLibStdCXXIncludePaths(getDriver().SysRoot, "/usr/include/c++/4.2", "", "", + "", "", DriverArgs, CC1Args); +} + +void FreeBSD::AddCXXStdlibLibArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + CXXStdlibType Type = GetCXXStdlibType(Args); + bool Profiling = Args.hasArg(options::OPT_pg); + + switch (Type) { + case ToolChain::CST_Libcxx: + CmdArgs.push_back(Profiling ? "-lc++_p" : "-lc++"); + break; + + case ToolChain::CST_Libstdcxx: + CmdArgs.push_back(Profiling ? "-lstdc++_p" : "-lstdc++"); + break; + } +} + +Tool *FreeBSD::buildAssembler() const { + return new tools::freebsd::Assembler(*this); +} + +Tool *FreeBSD::buildLinker() const { return new tools::freebsd::Linker(*this); } + +bool FreeBSD::UseSjLjExceptions(const ArgList &Args) const { + // FreeBSD uses SjLj exceptions on ARM oabi. + switch (getTriple().getEnvironment()) { + case llvm::Triple::GNUEABIHF: + case llvm::Triple::GNUEABI: + case llvm::Triple::EABI: + return false; + + default: + return (getTriple().getArch() == llvm::Triple::arm || + getTriple().getArch() == llvm::Triple::thumb); + } +} + +bool FreeBSD::HasNativeLLVMSupport() const { return true; } + +bool FreeBSD::isPIEDefault() const { return getSanitizerArgs().requiresPIE(); } + +SanitizerMask FreeBSD::getSupportedSanitizers() const { + const bool IsX86 = getTriple().getArch() == llvm::Triple::x86; + const bool IsX86_64 = getTriple().getArch() == llvm::Triple::x86_64; + const bool IsMIPS64 = getTriple().getArch() == llvm::Triple::mips64 || + getTriple().getArch() == llvm::Triple::mips64el; + SanitizerMask Res = ToolChain::getSupportedSanitizers(); + Res |= SanitizerKind::Address; + Res |= SanitizerKind::Vptr; + if (IsX86_64 || IsMIPS64) { + Res |= SanitizerKind::Leak; + Res |= SanitizerKind::Thread; + } + if (IsX86 || IsX86_64) { + Res |= SanitizerKind::SafeStack; + } + return Res; +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/FreeBSD.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/FreeBSD.h new file mode 100644 index 0000000..25e9df7 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/FreeBSD.h @@ -0,0 +1,86 @@ +//===--- FreeBSD.h - FreeBSD ToolChain Implementations ----------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_FREEBSD_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_FREEBSD_H + +#include "Gnu.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace tools { + +/// freebsd -- Directly call GNU Binutils assembler and linker +namespace freebsd { +class LLVM_LIBRARY_VISIBILITY Assembler : public GnuTool { +public: + Assembler(const ToolChain &TC) + : GnuTool("freebsd::Assembler", "assembler", TC) {} + + bool hasIntegratedCPP() const override { return false; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +class LLVM_LIBRARY_VISIBILITY Linker : public GnuTool { +public: + Linker(const ToolChain &TC) : GnuTool("freebsd::Linker", "linker", TC) {} + + bool hasIntegratedCPP() const override { return false; } + bool isLinkJob() const override { return true; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; +} // end namespace freebsd +} // end namespace tools + +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY FreeBSD : public Generic_ELF { +public: + FreeBSD(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + bool HasNativeLLVMSupport() const override; + + bool IsMathErrnoDefault() const override { return false; } + bool IsObjCNonFragileABIDefault() const override { return true; } + + CXXStdlibType GetDefaultCXXStdlibType() const override; + void addLibStdCxxIncludePaths( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + void AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const override; + + bool UseSjLjExceptions(const llvm::opt::ArgList &Args) const override; + bool isPIEDefault() const override; + SanitizerMask getSupportedSanitizers() const override; + unsigned GetDefaultDwarfVersion() const override { return 2; } + // Until dtrace (via CTF) and LLDB can deal with distributed debug info, + // FreeBSD defaults to standalone/full debug info. + bool GetDefaultStandaloneDebug() const override { return true; } + +protected: + Tool *buildAssembler() const override; + Tool *buildLinker() const override; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_FREEBSD_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Fuchsia.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Fuchsia.cpp new file mode 100644 index 0000000..78053aa --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Fuchsia.cpp @@ -0,0 +1,286 @@ +//===--- Fuchsia.cpp - Fuchsia ToolChain Implementations --------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "Fuchsia.h" +#include "CommonArgs.h" +#include "clang/Config/config.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Options.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Support/Path.h" + +using namespace clang::driver; +using namespace clang::driver::toolchains; +using namespace clang::driver::tools; +using namespace clang; +using namespace llvm::opt; + +void fuchsia::Linker::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + const toolchains::Fuchsia &ToolChain = + static_cast<const toolchains::Fuchsia &>(getToolChain()); + const Driver &D = ToolChain.getDriver(); + + ArgStringList CmdArgs; + + // Silence warning for "clang -g foo.o -o foo" + Args.ClaimAllArgs(options::OPT_g_Group); + // and "clang -emit-llvm foo.o -o foo" + Args.ClaimAllArgs(options::OPT_emit_llvm); + // and for "clang -w foo.o -o foo". Other warning options are already + // handled somewhere else. + Args.ClaimAllArgs(options::OPT_w); + + const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath()); + if (llvm::sys::path::stem(Exec).equals_lower("lld")) { + CmdArgs.push_back("-flavor"); + CmdArgs.push_back("gnu"); + + CmdArgs.push_back("-z"); + CmdArgs.push_back("rodynamic"); + } + + if (!D.SysRoot.empty()) + CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); + + if (!Args.hasArg(options::OPT_shared) && !Args.hasArg(options::OPT_r)) + CmdArgs.push_back("-pie"); + + if (Args.hasArg(options::OPT_rdynamic)) + CmdArgs.push_back("-export-dynamic"); + + if (Args.hasArg(options::OPT_s)) + CmdArgs.push_back("-s"); + + if (Args.hasArg(options::OPT_r)) + CmdArgs.push_back("-r"); + else + CmdArgs.push_back("--build-id"); + + if (!Args.hasArg(options::OPT_static)) + CmdArgs.push_back("--eh-frame-hdr"); + + if (Args.hasArg(options::OPT_static)) + CmdArgs.push_back("-Bstatic"); + else if (Args.hasArg(options::OPT_shared)) + CmdArgs.push_back("-shared"); + + if (!Args.hasArg(options::OPT_static)) { + if (Args.hasArg(options::OPT_rdynamic)) + CmdArgs.push_back("-export-dynamic"); + + if (!Args.hasArg(options::OPT_shared)) { + CmdArgs.push_back("-dynamic-linker"); + CmdArgs.push_back(Args.MakeArgString(D.DyldPrefix + "ld.so.1")); + } + } + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + if (!Args.hasArg(options::OPT_shared)) { + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("Scrt1.o"))); + } + } + + Args.AddAllArgs(CmdArgs, options::OPT_L); + Args.AddAllArgs(CmdArgs, options::OPT_u); + + ToolChain.AddFilePathLibArgs(Args, CmdArgs); + + AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { + if (Args.hasArg(options::OPT_static)) + CmdArgs.push_back("-Bdynamic"); + + if (D.CCCIsCXX()) { + bool OnlyLibstdcxxStatic = Args.hasArg(options::OPT_static_libstdcxx) && + !Args.hasArg(options::OPT_static); + if (OnlyLibstdcxxStatic) + CmdArgs.push_back("-Bstatic"); + ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs); + if (OnlyLibstdcxxStatic) + CmdArgs.push_back("-Bdynamic"); + CmdArgs.push_back("-lm"); + } + + AddRunTimeLibs(ToolChain, D, CmdArgs, Args); + + if (Args.hasArg(options::OPT_pthread) || + Args.hasArg(options::OPT_pthreads)) + CmdArgs.push_back("-lpthread"); + + if (Args.hasArg(options::OPT_fsplit_stack)) + CmdArgs.push_back("--wrap=pthread_create"); + + CmdArgs.push_back("-lc"); + } + + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +/// Fuchsia - Fuchsia tool chain which can call as(1) and ld(1) directly. + +static std::string normalizeTriple(llvm::Triple Triple) { + SmallString<64> T; + T += Triple.getArchName(); + T += "-"; + T += Triple.getOSName(); + return T.str(); +} + +static std::string getTargetDir(const Driver &D, + llvm::Triple Triple) { + SmallString<128> P(llvm::sys::path::parent_path(D.Dir)); + llvm::sys::path::append(P, "lib", normalizeTriple(Triple)); + return P.str(); +} + +Fuchsia::Fuchsia(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : ToolChain(D, Triple, Args) { + getProgramPaths().push_back(getDriver().getInstalledDir()); + if (getDriver().getInstalledDir() != D.Dir) + getProgramPaths().push_back(D.Dir); + + SmallString<128> P(getTargetDir(D, getTriple())); + llvm::sys::path::append(P, "lib"); + getFilePaths().push_back(P.str()); + + if (!D.SysRoot.empty()) { + SmallString<128> P(D.SysRoot); + llvm::sys::path::append(P, "lib"); + getFilePaths().push_back(P.str()); + } +} + +std::string Fuchsia::ComputeEffectiveClangTriple(const ArgList &Args, + types::ID InputType) const { + llvm::Triple Triple(ComputeLLVMTriple(Args, InputType)); + Triple.setTriple(normalizeTriple(Triple)); + return Triple.getTriple(); +} + +Tool *Fuchsia::buildLinker() const { + return new tools::fuchsia::Linker(*this); +} + +ToolChain::RuntimeLibType Fuchsia::GetRuntimeLibType( + const ArgList &Args) const { + if (Arg *A = Args.getLastArg(clang::driver::options::OPT_rtlib_EQ)) { + StringRef Value = A->getValue(); + if (Value != "compiler-rt") + getDriver().Diag(clang::diag::err_drv_invalid_rtlib_name) + << A->getAsString(Args); + } + + return ToolChain::RLT_CompilerRT; +} + +ToolChain::CXXStdlibType +Fuchsia::GetCXXStdlibType(const ArgList &Args) const { + if (Arg *A = Args.getLastArg(options::OPT_stdlib_EQ)) { + StringRef Value = A->getValue(); + if (Value != "libc++") + getDriver().Diag(diag::err_drv_invalid_stdlib_name) + << A->getAsString(Args); + } + + return ToolChain::CST_Libcxx; +} + +void Fuchsia::addClangTargetOptions(const ArgList &DriverArgs, + ArgStringList &CC1Args, + Action::OffloadKind) const { + if (DriverArgs.hasFlag(options::OPT_fuse_init_array, + options::OPT_fno_use_init_array, true)) + CC1Args.push_back("-fuse-init-array"); +} + +void Fuchsia::AddClangSystemIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + const Driver &D = getDriver(); + + if (DriverArgs.hasArg(options::OPT_nostdinc)) + return; + + if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) { + SmallString<128> P(D.ResourceDir); + llvm::sys::path::append(P, "include"); + addSystemInclude(DriverArgs, CC1Args, P); + } + + if (DriverArgs.hasArg(options::OPT_nostdlibinc)) + return; + + // Check for configure-time C include directories. + StringRef CIncludeDirs(C_INCLUDE_DIRS); + if (CIncludeDirs != "") { + SmallVector<StringRef, 5> dirs; + CIncludeDirs.split(dirs, ":"); + for (StringRef dir : dirs) { + StringRef Prefix = + llvm::sys::path::is_absolute(dir) ? StringRef(D.SysRoot) : ""; + addExternCSystemInclude(DriverArgs, CC1Args, Prefix + dir); + } + return; + } + + if (!D.SysRoot.empty()) { + SmallString<128> P(D.SysRoot); + llvm::sys::path::append(P, "include"); + addExternCSystemInclude(DriverArgs, CC1Args, P.str()); + } +} + +void Fuchsia::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + if (DriverArgs.hasArg(options::OPT_nostdlibinc) || + DriverArgs.hasArg(options::OPT_nostdincxx)) + return; + + switch (GetCXXStdlibType(DriverArgs)) { + case ToolChain::CST_Libcxx: { + SmallString<128> P(getTargetDir(getDriver(), getTriple())); + llvm::sys::path::append(P, "include", "c++", "v1"); + addSystemInclude(DriverArgs, CC1Args, P.str()); + break; + } + + default: + llvm_unreachable("invalid stdlib name"); + } +} + +void Fuchsia::AddCXXStdlibLibArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + switch (GetCXXStdlibType(Args)) { + case ToolChain::CST_Libcxx: + CmdArgs.push_back("-lc++"); + CmdArgs.push_back("-lc++abi"); + CmdArgs.push_back("-lunwind"); + break; + + case ToolChain::CST_Libstdcxx: + llvm_unreachable("invalid stdlib name"); + } +} + +SanitizerMask Fuchsia::getSupportedSanitizers() const { + SanitizerMask Res = ToolChain::getSupportedSanitizers(); + Res |= SanitizerKind::SafeStack; + return Res; +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Fuchsia.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Fuchsia.h new file mode 100644 index 0000000..a723a99 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Fuchsia.h @@ -0,0 +1,92 @@ +//===--- Fuchsia.h - Fuchsia ToolChain Implementations ----------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_FUCHSIA_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_FUCHSIA_H + +#include "Gnu.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace tools { +namespace fuchsia { +class LLVM_LIBRARY_VISIBILITY Linker : public GnuTool { +public: + Linker(const ToolChain &TC) : GnuTool("fuchsia::Linker", "ld.lld", TC) {} + + bool hasIntegratedCPP() const override { return false; } + bool isLinkJob() const override { return true; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; +} // end namespace fuchsia +} // end namespace tools + +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY Fuchsia : public ToolChain { +public: + Fuchsia(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + + bool HasNativeLLVMSupport() const override { return true; } + bool IsIntegratedAssemblerDefault() const override { return true; } + RuntimeLibType GetDefaultRuntimeLibType() const override { + return ToolChain::RLT_CompilerRT; + } + CXXStdlibType GetDefaultCXXStdlibType() const override { + return ToolChain::CST_Libcxx; + } + bool isPICDefault() const override { return false; } + bool isPIEDefault() const override { return true; } + bool isPICDefaultForced() const override { return false; } + llvm::DebuggerKind getDefaultDebuggerTuning() const override { + return llvm::DebuggerKind::GDB; + } + + std::string ComputeEffectiveClangTriple(const llvm::opt::ArgList &Args, + types::ID InputType) const override; + + SanitizerMask getSupportedSanitizers() const override; + + RuntimeLibType + GetRuntimeLibType(const llvm::opt::ArgList &Args) const override; + CXXStdlibType + GetCXXStdlibType(const llvm::opt::ArgList &Args) const override; + + void addClangTargetOptions(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args, + Action::OffloadKind DeviceOffloadKind) const override; + void + AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + void + AddClangCXXStdlibIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + void AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const override; + + const char *getDefaultLinker() const override { + return "lld"; + } + +protected: + Tool *buildLinker() const override; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_FUCHSIA_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Gnu.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Gnu.cpp new file mode 100644 index 0000000..72a9f85 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Gnu.cpp @@ -0,0 +1,2480 @@ +//===--- Gnu.cpp - Gnu Tool and ToolChain Implementations -------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "Gnu.h" +#include "Linux.h" +#include "Arch/ARM.h" +#include "Arch/Mips.h" +#include "Arch/Sparc.h" +#include "Arch/SystemZ.h" +#include "CommonArgs.h" +#include "clang/Basic/VirtualFileSystem.h" +#include "clang/Config/config.h" // for GCC_INSTALL_PREFIX +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Options.h" +#include "clang/Driver/Tool.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Support/CodeGen.h" +#include "llvm/Support/Path.h" +#include "llvm/Support/TargetParser.h" +#include <system_error> + +using namespace clang::driver; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +void tools::GnuTool::anchor() {} + +static bool forwardToGCC(const Option &O) { + // Don't forward inputs from the original command line. They are added from + // InputInfoList. + return O.getKind() != Option::InputClass && + !O.hasFlag(options::DriverOption) && !O.hasFlag(options::LinkerInput); +} + +void tools::gcc::Common::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + const Driver &D = getToolChain().getDriver(); + ArgStringList CmdArgs; + + for (const auto &A : Args) { + if (forwardToGCC(A->getOption())) { + // It is unfortunate that we have to claim here, as this means + // we will basically never report anything interesting for + // platforms using a generic gcc, even if we are just using gcc + // to get to the assembler. + A->claim(); + + // Don't forward any -g arguments to assembly steps. + if (isa<AssembleJobAction>(JA) && + A->getOption().matches(options::OPT_g_Group)) + continue; + + // Don't forward any -W arguments to assembly and link steps. + if ((isa<AssembleJobAction>(JA) || isa<LinkJobAction>(JA)) && + A->getOption().matches(options::OPT_W_Group)) + continue; + + A->render(Args, CmdArgs); + } + } + + RenderExtraToolArgs(JA, CmdArgs); + + // If using a driver driver, force the arch. + if (getToolChain().getTriple().isOSDarwin()) { + CmdArgs.push_back("-arch"); + CmdArgs.push_back( + Args.MakeArgString(getToolChain().getDefaultUniversalArchName())); + } + + // Try to force gcc to match the tool chain we want, if we recognize + // the arch. + // + // FIXME: The triple class should directly provide the information we want + // here. + switch (getToolChain().getArch()) { + default: + break; + case llvm::Triple::x86: + case llvm::Triple::ppc: + CmdArgs.push_back("-m32"); + break; + case llvm::Triple::x86_64: + case llvm::Triple::ppc64: + case llvm::Triple::ppc64le: + CmdArgs.push_back("-m64"); + break; + case llvm::Triple::sparcel: + CmdArgs.push_back("-EL"); + break; + } + + if (Output.isFilename()) { + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + } else { + assert(Output.isNothing() && "Unexpected output"); + CmdArgs.push_back("-fsyntax-only"); + } + + Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); + + // Only pass -x if gcc will understand it; otherwise hope gcc + // understands the suffix correctly. The main use case this would go + // wrong in is for linker inputs if they happened to have an odd + // suffix; really the only way to get this to happen is a command + // like '-x foobar a.c' which will treat a.c like a linker input. + // + // FIXME: For the linker case specifically, can we safely convert + // inputs into '-Wl,' options? + for (const auto &II : Inputs) { + // Don't try to pass LLVM or AST inputs to a generic gcc. + if (types::isLLVMIR(II.getType())) + D.Diag(clang::diag::err_drv_no_linker_llvm_support) + << getToolChain().getTripleString(); + else if (II.getType() == types::TY_AST) + D.Diag(diag::err_drv_no_ast_support) << getToolChain().getTripleString(); + else if (II.getType() == types::TY_ModuleFile) + D.Diag(diag::err_drv_no_module_support) + << getToolChain().getTripleString(); + + if (types::canTypeBeUserSpecified(II.getType())) { + CmdArgs.push_back("-x"); + CmdArgs.push_back(types::getTypeName(II.getType())); + } + + if (II.isFilename()) + CmdArgs.push_back(II.getFilename()); + else { + const Arg &A = II.getInputArg(); + + // Reverse translate some rewritten options. + if (A.getOption().matches(options::OPT_Z_reserved_lib_stdcxx)) { + CmdArgs.push_back("-lstdc++"); + continue; + } + + // Don't render as input, we need gcc to do the translations. + A.render(Args, CmdArgs); + } + } + + const std::string &customGCCName = D.getCCCGenericGCCName(); + const char *GCCName; + if (!customGCCName.empty()) + GCCName = customGCCName.c_str(); + else if (D.CCCIsCXX()) { + GCCName = "g++"; + } else + GCCName = "gcc"; + + const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath(GCCName)); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +void tools::gcc::Preprocessor::RenderExtraToolArgs( + const JobAction &JA, ArgStringList &CmdArgs) const { + CmdArgs.push_back("-E"); +} + +void tools::gcc::Compiler::RenderExtraToolArgs(const JobAction &JA, + ArgStringList &CmdArgs) const { + const Driver &D = getToolChain().getDriver(); + + switch (JA.getType()) { + // If -flto, etc. are present then make sure not to force assembly output. + case types::TY_LLVM_IR: + case types::TY_LTO_IR: + case types::TY_LLVM_BC: + case types::TY_LTO_BC: + CmdArgs.push_back("-c"); + break; + // We assume we've got an "integrated" assembler in that gcc will produce an + // object file itself. + case types::TY_Object: + CmdArgs.push_back("-c"); + break; + case types::TY_PP_Asm: + CmdArgs.push_back("-S"); + break; + case types::TY_Nothing: + CmdArgs.push_back("-fsyntax-only"); + break; + default: + D.Diag(diag::err_drv_invalid_gcc_output_type) << getTypeName(JA.getType()); + } +} + +void tools::gcc::Linker::RenderExtraToolArgs(const JobAction &JA, + ArgStringList &CmdArgs) const { + // The types are (hopefully) good enough. +} + +/// Add OpenMP linker script arguments at the end of the argument list so that +/// the fat binary is built by embedding each of the device images into the +/// host. The linker script also defines a few symbols required by the code +/// generation so that the images can be easily retrieved at runtime by the +/// offloading library. This should be used only in tool chains that support +/// linker scripts. +static void AddOpenMPLinkerScript(const ToolChain &TC, Compilation &C, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, ArgStringList &CmdArgs, + const JobAction &JA) { + + // If this is not an OpenMP host toolchain, we don't need to do anything. + if (!JA.isHostOffloading(Action::OFK_OpenMP)) + return; + + // Create temporary linker script. Keep it if save-temps is enabled. + const char *LKS; + SmallString<256> Name = llvm::sys::path::filename(Output.getFilename()); + if (C.getDriver().isSaveTempsEnabled()) { + llvm::sys::path::replace_extension(Name, "lk"); + LKS = C.getArgs().MakeArgString(Name.c_str()); + } else { + llvm::sys::path::replace_extension(Name, ""); + Name = C.getDriver().GetTemporaryPath(Name, "lk"); + LKS = C.addTempFile(C.getArgs().MakeArgString(Name.c_str())); + } + + // Add linker script option to the command. + CmdArgs.push_back("-T"); + CmdArgs.push_back(LKS); + + // Create a buffer to write the contents of the linker script. + std::string LksBuffer; + llvm::raw_string_ostream LksStream(LksBuffer); + + // Get the OpenMP offload tool chains so that we can extract the triple + // associated with each device input. + auto OpenMPToolChains = C.getOffloadToolChains<Action::OFK_OpenMP>(); + assert(OpenMPToolChains.first != OpenMPToolChains.second && + "No OpenMP toolchains??"); + + // Track the input file name and device triple in order to build the script, + // inserting binaries in the designated sections. + SmallVector<std::pair<std::string, const char *>, 8> InputBinaryInfo; + + // Add commands to embed target binaries. We ensure that each section and + // image is 16-byte aligned. This is not mandatory, but increases the + // likelihood of data to be aligned with a cache block in several main host + // machines. + LksStream << "/*\n"; + LksStream << " OpenMP Offload Linker Script\n"; + LksStream << " *** Automatically generated by Clang ***\n"; + LksStream << "*/\n"; + LksStream << "TARGET(binary)\n"; + auto DTC = OpenMPToolChains.first; + for (auto &II : Inputs) { + const Action *A = II.getAction(); + // Is this a device linking action? + if (A && isa<LinkJobAction>(A) && + A->isDeviceOffloading(Action::OFK_OpenMP)) { + assert(DTC != OpenMPToolChains.second && + "More device inputs than device toolchains??"); + InputBinaryInfo.push_back(std::make_pair( + DTC->second->getTriple().normalize(), II.getFilename())); + ++DTC; + LksStream << "INPUT(" << II.getFilename() << ")\n"; + } + } + + assert(DTC == OpenMPToolChains.second && + "Less device inputs than device toolchains??"); + + LksStream << "SECTIONS\n"; + LksStream << "{\n"; + + // Put each target binary into a separate section. + for (const auto &BI : InputBinaryInfo) { + LksStream << " .omp_offloading." << BI.first << " :\n"; + LksStream << " ALIGN(0x10)\n"; + LksStream << " {\n"; + LksStream << " PROVIDE_HIDDEN(.omp_offloading.img_start." << BI.first + << " = .);\n"; + LksStream << " " << BI.second << "\n"; + LksStream << " PROVIDE_HIDDEN(.omp_offloading.img_end." << BI.first + << " = .);\n"; + LksStream << " }\n"; + } + + // Add commands to define host entries begin and end. We use 1-byte subalign + // so that the linker does not add any padding and the elements in this + // section form an array. + LksStream << " .omp_offloading.entries :\n"; + LksStream << " ALIGN(0x10)\n"; + LksStream << " SUBALIGN(0x01)\n"; + LksStream << " {\n"; + LksStream << " PROVIDE_HIDDEN(.omp_offloading.entries_begin = .);\n"; + LksStream << " *(.omp_offloading.entries)\n"; + LksStream << " PROVIDE_HIDDEN(.omp_offloading.entries_end = .);\n"; + LksStream << " }\n"; + LksStream << "}\n"; + LksStream << "INSERT BEFORE .data\n"; + LksStream.flush(); + + // Dump the contents of the linker script if the user requested that. We + // support this option to enable testing of behavior with -###. + if (C.getArgs().hasArg(options::OPT_fopenmp_dump_offload_linker_script)) + llvm::errs() << LksBuffer; + + // If this is a dry run, do not create the linker script file. + if (C.getArgs().hasArg(options::OPT__HASH_HASH_HASH)) + return; + + // Open script file and write the contents. + std::error_code EC; + llvm::raw_fd_ostream Lksf(LKS, EC, llvm::sys::fs::F_None); + + if (EC) { + C.getDriver().Diag(clang::diag::err_unable_to_make_temp) << EC.message(); + return; + } + + Lksf << LksBuffer; +} + +static bool addXRayRuntime(const ToolChain &TC, const ArgList &Args, + ArgStringList &CmdArgs) { + if (Args.hasFlag(options::OPT_fxray_instrument, + options::OPT_fnoxray_instrument, false)) { + CmdArgs.push_back("-whole-archive"); + CmdArgs.push_back(TC.getCompilerRTArgString(Args, "xray", false)); + CmdArgs.push_back("-no-whole-archive"); + return true; + } + return false; +} + +static void linkXRayRuntimeDeps(const ToolChain &TC, const ArgList &Args, + ArgStringList &CmdArgs) { + CmdArgs.push_back("--no-as-needed"); + CmdArgs.push_back("-lpthread"); + CmdArgs.push_back("-lrt"); + CmdArgs.push_back("-lm"); + + if (TC.getTriple().getOS() != llvm::Triple::FreeBSD) + CmdArgs.push_back("-ldl"); +} + +static const char *getLDMOption(const llvm::Triple &T, const ArgList &Args) { + switch (T.getArch()) { + case llvm::Triple::x86: + if (T.isOSIAMCU()) + return "elf_iamcu"; + return "elf_i386"; + case llvm::Triple::aarch64: + return "aarch64linux"; + case llvm::Triple::aarch64_be: + return "aarch64_be_linux"; + case llvm::Triple::arm: + case llvm::Triple::thumb: + return "armelf_linux_eabi"; + case llvm::Triple::armeb: + case llvm::Triple::thumbeb: + return "armelfb_linux_eabi"; + case llvm::Triple::ppc: + return "elf32ppclinux"; + case llvm::Triple::ppc64: + return "elf64ppc"; + case llvm::Triple::ppc64le: + return "elf64lppc"; + case llvm::Triple::sparc: + case llvm::Triple::sparcel: + return "elf32_sparc"; + case llvm::Triple::sparcv9: + return "elf64_sparc"; + case llvm::Triple::mips: + return "elf32btsmip"; + case llvm::Triple::mipsel: + return "elf32ltsmip"; + case llvm::Triple::mips64: + if (tools::mips::hasMipsAbiArg(Args, "n32")) + return "elf32btsmipn32"; + return "elf64btsmip"; + case llvm::Triple::mips64el: + if (tools::mips::hasMipsAbiArg(Args, "n32")) + return "elf32ltsmipn32"; + return "elf64ltsmip"; + case llvm::Triple::systemz: + return "elf64_s390"; + case llvm::Triple::x86_64: + if (T.getEnvironment() == llvm::Triple::GNUX32) + return "elf32_x86_64"; + return "elf_x86_64"; + default: + return nullptr; + } +} + +void tools::gnutools::Linker::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + const toolchains::Linux &ToolChain = + static_cast<const toolchains::Linux &>(getToolChain()); + const Driver &D = ToolChain.getDriver(); + + const llvm::Triple &Triple = getToolChain().getEffectiveTriple(); + + const llvm::Triple::ArchType Arch = ToolChain.getArch(); + const bool isAndroid = ToolChain.getTriple().isAndroid(); + const bool IsIAMCU = ToolChain.getTriple().isOSIAMCU(); + const bool IsPIE = + !Args.hasArg(options::OPT_shared) && !Args.hasArg(options::OPT_static) && + (Args.hasArg(options::OPT_pie) || ToolChain.isPIEDefault()); + const bool HasCRTBeginEndFiles = + ToolChain.getTriple().hasEnvironment() || + (ToolChain.getTriple().getVendor() != llvm::Triple::MipsTechnologies); + + ArgStringList CmdArgs; + + // Silence warning for "clang -g foo.o -o foo" + Args.ClaimAllArgs(options::OPT_g_Group); + // and "clang -emit-llvm foo.o -o foo" + Args.ClaimAllArgs(options::OPT_emit_llvm); + // and for "clang -w foo.o -o foo". Other warning options are already + // handled somewhere else. + Args.ClaimAllArgs(options::OPT_w); + + const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath()); + if (llvm::sys::path::stem(Exec) == "lld") { + CmdArgs.push_back("-flavor"); + CmdArgs.push_back("old-gnu"); + CmdArgs.push_back("-target"); + CmdArgs.push_back(Args.MakeArgString(getToolChain().getTripleString())); + } + + if (!D.SysRoot.empty()) + CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); + + if (IsPIE) + CmdArgs.push_back("-pie"); + + if (Args.hasArg(options::OPT_rdynamic)) + CmdArgs.push_back("-export-dynamic"); + + if (Args.hasArg(options::OPT_s)) + CmdArgs.push_back("-s"); + + if (Arch == llvm::Triple::armeb || Arch == llvm::Triple::thumbeb) + arm::appendEBLinkFlags(Args, CmdArgs, Triple); + + // Most Android ARM64 targets should enable the linker fix for erratum + // 843419. Only non-Cortex-A53 devices are allowed to skip this flag. + if (Arch == llvm::Triple::aarch64 && isAndroid) { + std::string CPU = getCPUName(Args, Triple); + if (CPU.empty() || CPU == "generic" || CPU == "cortex-a53") + CmdArgs.push_back("--fix-cortex-a53-843419"); + } + + for (const auto &Opt : ToolChain.ExtraOpts) + CmdArgs.push_back(Opt.c_str()); + + if (!Args.hasArg(options::OPT_static)) { + CmdArgs.push_back("--eh-frame-hdr"); + } + + if (const char *LDMOption = getLDMOption(ToolChain.getTriple(), Args)) { + CmdArgs.push_back("-m"); + CmdArgs.push_back(LDMOption); + } else { + D.Diag(diag::err_target_unknown_triple) << Triple.str(); + return; + } + + if (Args.hasArg(options::OPT_static)) { + if (Arch == llvm::Triple::arm || Arch == llvm::Triple::armeb || + Arch == llvm::Triple::thumb || Arch == llvm::Triple::thumbeb) + CmdArgs.push_back("-Bstatic"); + else + CmdArgs.push_back("-static"); + } else if (Args.hasArg(options::OPT_shared)) { + CmdArgs.push_back("-shared"); + } + + if (!Args.hasArg(options::OPT_static)) { + if (Args.hasArg(options::OPT_rdynamic)) + CmdArgs.push_back("-export-dynamic"); + + if (!Args.hasArg(options::OPT_shared)) { + const std::string Loader = + D.DyldPrefix + ToolChain.getDynamicLinker(Args); + CmdArgs.push_back("-dynamic-linker"); + CmdArgs.push_back(Args.MakeArgString(Loader)); + } + } + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + if (!isAndroid && !IsIAMCU) { + const char *crt1 = nullptr; + if (!Args.hasArg(options::OPT_shared)) { + if (Args.hasArg(options::OPT_pg)) + crt1 = "gcrt1.o"; + else if (IsPIE) + crt1 = "Scrt1.o"; + else + crt1 = "crt1.o"; + } + if (crt1) + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crt1))); + + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o"))); + } + + if (IsIAMCU) + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt0.o"))); + else { + const char *crtbegin; + if (Args.hasArg(options::OPT_static)) + crtbegin = isAndroid ? "crtbegin_static.o" : "crtbeginT.o"; + else if (Args.hasArg(options::OPT_shared)) + crtbegin = isAndroid ? "crtbegin_so.o" : "crtbeginS.o"; + else if (IsPIE) + crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbeginS.o"; + else + crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbegin.o"; + + if (HasCRTBeginEndFiles) + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crtbegin))); + } + + // Add crtfastmath.o if available and fast math is enabled. + ToolChain.AddFastMathRuntimeIfAvailable(Args, CmdArgs); + } + + Args.AddAllArgs(CmdArgs, options::OPT_L); + Args.AddAllArgs(CmdArgs, options::OPT_u); + + ToolChain.AddFilePathLibArgs(Args, CmdArgs); + + if (D.isUsingLTO()) + AddGoldPlugin(ToolChain, Args, CmdArgs, D.getLTOMode() == LTOK_Thin, D); + + if (Args.hasArg(options::OPT_Z_Xlinker__no_demangle)) + CmdArgs.push_back("--no-demangle"); + + bool NeedsSanitizerDeps = addSanitizerRuntimes(ToolChain, Args, CmdArgs); + bool NeedsXRayDeps = addXRayRuntime(ToolChain, Args, CmdArgs); + AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA); + // The profile runtime also needs access to system libraries. + getToolChain().addProfileRTLibs(Args, CmdArgs); + + if (D.CCCIsCXX() && + !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { + bool OnlyLibstdcxxStatic = Args.hasArg(options::OPT_static_libstdcxx) && + !Args.hasArg(options::OPT_static); + if (OnlyLibstdcxxStatic) + CmdArgs.push_back("-Bstatic"); + ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs); + if (OnlyLibstdcxxStatic) + CmdArgs.push_back("-Bdynamic"); + CmdArgs.push_back("-lm"); + } + // Silence warnings when linking C code with a C++ '-stdlib' argument. + Args.ClaimAllArgs(options::OPT_stdlib_EQ); + + if (!Args.hasArg(options::OPT_nostdlib)) { + if (!Args.hasArg(options::OPT_nodefaultlibs)) { + if (Args.hasArg(options::OPT_static)) + CmdArgs.push_back("--start-group"); + + if (NeedsSanitizerDeps) + linkSanitizerRuntimeDeps(ToolChain, CmdArgs); + + if (NeedsXRayDeps) + linkXRayRuntimeDeps(ToolChain, Args, CmdArgs); + + bool WantPthread = Args.hasArg(options::OPT_pthread) || + Args.hasArg(options::OPT_pthreads); + + // FIXME: Only pass GompNeedsRT = true for platforms with libgomp that + // require librt. Most modern Linux platforms do, but some may not. + if (addOpenMPRuntime(CmdArgs, ToolChain, Args, + JA.isHostOffloading(Action::OFK_OpenMP), + /* GompNeedsRT= */ true)) + // OpenMP runtimes implies pthreads when using the GNU toolchain. + // FIXME: Does this really make sense for all GNU toolchains? + WantPthread = true; + + AddRunTimeLibs(ToolChain, D, CmdArgs, Args); + + if (WantPthread && !isAndroid) + CmdArgs.push_back("-lpthread"); + + if (Args.hasArg(options::OPT_fsplit_stack)) + CmdArgs.push_back("--wrap=pthread_create"); + + CmdArgs.push_back("-lc"); + + // Add IAMCU specific libs, if needed. + if (IsIAMCU) + CmdArgs.push_back("-lgloss"); + + if (Args.hasArg(options::OPT_static)) + CmdArgs.push_back("--end-group"); + else + AddRunTimeLibs(ToolChain, D, CmdArgs, Args); + + // Add IAMCU specific libs (outside the group), if needed. + if (IsIAMCU) { + CmdArgs.push_back("--as-needed"); + CmdArgs.push_back("-lsoftfp"); + CmdArgs.push_back("--no-as-needed"); + } + } + + if (!Args.hasArg(options::OPT_nostartfiles) && !IsIAMCU) { + const char *crtend; + if (Args.hasArg(options::OPT_shared)) + crtend = isAndroid ? "crtend_so.o" : "crtendS.o"; + else if (IsPIE) + crtend = isAndroid ? "crtend_android.o" : "crtendS.o"; + else + crtend = isAndroid ? "crtend_android.o" : "crtend.o"; + + if (HasCRTBeginEndFiles) + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crtend))); + if (!isAndroid) + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o"))); + } + } + + // Add OpenMP offloading linker script args if required. + AddOpenMPLinkerScript(getToolChain(), C, Output, Inputs, Args, CmdArgs, JA); + + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +void tools::gnutools::Assembler::ConstructJob(Compilation &C, + const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + const auto &D = getToolChain().getDriver(); + + claimNoWarnArgs(Args); + + ArgStringList CmdArgs; + + llvm::Reloc::Model RelocationModel; + unsigned PICLevel; + bool IsPIE; + std::tie(RelocationModel, PICLevel, IsPIE) = + ParsePICArgs(getToolChain(), Args); + + if (const Arg *A = Args.getLastArg(options::OPT_gz, options::OPT_gz_EQ)) { + if (A->getOption().getID() == options::OPT_gz) { + CmdArgs.push_back("-compress-debug-sections"); + } else { + StringRef Value = A->getValue(); + if (Value == "none") { + CmdArgs.push_back("-compress-debug-sections=none"); + } else if (Value == "zlib" || Value == "zlib-gnu") { + CmdArgs.push_back( + Args.MakeArgString("-compress-debug-sections=" + Twine(Value))); + } else { + D.Diag(diag::err_drv_unsupported_option_argument) + << A->getOption().getName() << Value; + } + } + } + + switch (getToolChain().getArch()) { + default: + break; + // Add --32/--64 to make sure we get the format we want. + // This is incomplete + case llvm::Triple::x86: + CmdArgs.push_back("--32"); + break; + case llvm::Triple::x86_64: + if (getToolChain().getTriple().getEnvironment() == llvm::Triple::GNUX32) + CmdArgs.push_back("--x32"); + else + CmdArgs.push_back("--64"); + break; + case llvm::Triple::ppc: + CmdArgs.push_back("-a32"); + CmdArgs.push_back("-mppc"); + CmdArgs.push_back("-many"); + break; + case llvm::Triple::ppc64: + CmdArgs.push_back("-a64"); + CmdArgs.push_back("-mppc64"); + CmdArgs.push_back("-many"); + break; + case llvm::Triple::ppc64le: + CmdArgs.push_back("-a64"); + CmdArgs.push_back("-mppc64"); + CmdArgs.push_back("-many"); + CmdArgs.push_back("-mlittle-endian"); + break; + case llvm::Triple::sparc: + case llvm::Triple::sparcel: { + CmdArgs.push_back("-32"); + std::string CPU = getCPUName(Args, getToolChain().getTriple()); + CmdArgs.push_back(sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple())); + AddAssemblerKPIC(getToolChain(), Args, CmdArgs); + break; + } + case llvm::Triple::sparcv9: { + CmdArgs.push_back("-64"); + std::string CPU = getCPUName(Args, getToolChain().getTriple()); + CmdArgs.push_back(sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple())); + AddAssemblerKPIC(getToolChain(), Args, CmdArgs); + break; + } + case llvm::Triple::arm: + case llvm::Triple::armeb: + case llvm::Triple::thumb: + case llvm::Triple::thumbeb: { + const llvm::Triple &Triple2 = getToolChain().getTriple(); + switch (Triple2.getSubArch()) { + case llvm::Triple::ARMSubArch_v7: + CmdArgs.push_back("-mfpu=neon"); + break; + case llvm::Triple::ARMSubArch_v8: + CmdArgs.push_back("-mfpu=crypto-neon-fp-armv8"); + break; + default: + break; + } + + switch (arm::getARMFloatABI(getToolChain(), Args)) { + case arm::FloatABI::Invalid: llvm_unreachable("must have an ABI!"); + case arm::FloatABI::Soft: + CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=soft")); + break; + case arm::FloatABI::SoftFP: + CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=softfp")); + break; + case arm::FloatABI::Hard: + CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=hard")); + break; + } + + Args.AddLastArg(CmdArgs, options::OPT_march_EQ); + + // FIXME: remove krait check when GNU tools support krait cpu + // for now replace it with -mcpu=cortex-a15 to avoid a lower + // march from being picked in the absence of a cpu flag. + Arg *A; + if ((A = Args.getLastArg(options::OPT_mcpu_EQ)) && + StringRef(A->getValue()).equals_lower("krait")) + CmdArgs.push_back("-mcpu=cortex-a15"); + else + Args.AddLastArg(CmdArgs, options::OPT_mcpu_EQ); + Args.AddLastArg(CmdArgs, options::OPT_mfpu_EQ); + break; + } + case llvm::Triple::aarch64: + case llvm::Triple::aarch64_be: { + Args.AddLastArg(CmdArgs, options::OPT_march_EQ); + Args.AddLastArg(CmdArgs, options::OPT_mcpu_EQ); + break; + } + case llvm::Triple::mips: + case llvm::Triple::mipsel: + case llvm::Triple::mips64: + case llvm::Triple::mips64el: { + StringRef CPUName; + StringRef ABIName; + mips::getMipsCPUAndABI(Args, getToolChain().getTriple(), CPUName, ABIName); + ABIName = mips::getGnuCompatibleMipsABIName(ABIName); + + CmdArgs.push_back("-march"); + CmdArgs.push_back(CPUName.data()); + + CmdArgs.push_back("-mabi"); + CmdArgs.push_back(ABIName.data()); + + // -mno-shared should be emitted unless -fpic, -fpie, -fPIC, -fPIE, + // or -mshared (not implemented) is in effect. + if (RelocationModel == llvm::Reloc::Static) + CmdArgs.push_back("-mno-shared"); + + // LLVM doesn't support -mplt yet and acts as if it is always given. + // However, -mplt has no effect with the N64 ABI. + if (ABIName != "64" && !Args.hasArg(options::OPT_mno_abicalls)) + CmdArgs.push_back("-call_nonpic"); + + if (getToolChain().getArch() == llvm::Triple::mips || + getToolChain().getArch() == llvm::Triple::mips64) + CmdArgs.push_back("-EB"); + else + CmdArgs.push_back("-EL"); + + if (Arg *A = Args.getLastArg(options::OPT_mnan_EQ)) { + if (StringRef(A->getValue()) == "2008") + CmdArgs.push_back(Args.MakeArgString("-mnan=2008")); + } + + // Add the last -mfp32/-mfpxx/-mfp64 or -mfpxx if it is enabled by default. + if (Arg *A = Args.getLastArg(options::OPT_mfp32, options::OPT_mfpxx, + options::OPT_mfp64)) { + A->claim(); + A->render(Args, CmdArgs); + } else if (mips::shouldUseFPXX( + Args, getToolChain().getTriple(), CPUName, ABIName, + mips::getMipsFloatABI(getToolChain().getDriver(), Args))) + CmdArgs.push_back("-mfpxx"); + + // Pass on -mmips16 or -mno-mips16. However, the assembler equivalent of + // -mno-mips16 is actually -no-mips16. + if (Arg *A = + Args.getLastArg(options::OPT_mips16, options::OPT_mno_mips16)) { + if (A->getOption().matches(options::OPT_mips16)) { + A->claim(); + A->render(Args, CmdArgs); + } else { + A->claim(); + CmdArgs.push_back("-no-mips16"); + } + } + + Args.AddLastArg(CmdArgs, options::OPT_mmicromips, + options::OPT_mno_micromips); + Args.AddLastArg(CmdArgs, options::OPT_mdsp, options::OPT_mno_dsp); + Args.AddLastArg(CmdArgs, options::OPT_mdspr2, options::OPT_mno_dspr2); + + if (Arg *A = Args.getLastArg(options::OPT_mmsa, options::OPT_mno_msa)) { + // Do not use AddLastArg because not all versions of MIPS assembler + // support -mmsa / -mno-msa options. + if (A->getOption().matches(options::OPT_mmsa)) + CmdArgs.push_back(Args.MakeArgString("-mmsa")); + } + + Args.AddLastArg(CmdArgs, options::OPT_mhard_float, + options::OPT_msoft_float); + + Args.AddLastArg(CmdArgs, options::OPT_mdouble_float, + options::OPT_msingle_float); + + Args.AddLastArg(CmdArgs, options::OPT_modd_spreg, + options::OPT_mno_odd_spreg); + + AddAssemblerKPIC(getToolChain(), Args, CmdArgs); + break; + } + case llvm::Triple::systemz: { + // Always pass an -march option, since our default of z10 is later + // than the GNU assembler's default. + StringRef CPUName = systemz::getSystemZTargetCPU(Args); + CmdArgs.push_back(Args.MakeArgString("-march=" + CPUName)); + break; + } + } + + Args.AddAllArgs(CmdArgs, options::OPT_I); + Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + for (const auto &II : Inputs) + CmdArgs.push_back(II.getFilename()); + + const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as")); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); + + // Handle the debug info splitting at object creation time if we're + // creating an object. + // TODO: Currently only works on linux with newer objcopy. + if (Args.hasArg(options::OPT_gsplit_dwarf) && + getToolChain().getTriple().isOSLinux()) + SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output, + SplitDebugName(Args, Inputs[0])); +} + +namespace { +// Filter to remove Multilibs that don't exist as a suffix to Path +class FilterNonExistent { + StringRef Base, File; + vfs::FileSystem &VFS; + +public: + FilterNonExistent(StringRef Base, StringRef File, vfs::FileSystem &VFS) + : Base(Base), File(File), VFS(VFS) {} + bool operator()(const Multilib &M) { + return !VFS.exists(Base + M.gccSuffix() + File); + } +}; +} // end anonymous namespace + +static bool isSoftFloatABI(const ArgList &Args) { + Arg *A = Args.getLastArg(options::OPT_msoft_float, options::OPT_mhard_float, + options::OPT_mfloat_abi_EQ); + if (!A) + return false; + + return A->getOption().matches(options::OPT_msoft_float) || + (A->getOption().matches(options::OPT_mfloat_abi_EQ) && + A->getValue() == StringRef("soft")); +} + +/// \p Flag must be a flag accepted by the driver with its leading '-' removed, +// otherwise '-print-multi-lib' will not emit them correctly. +static void addMultilibFlag(bool Enabled, const char *const Flag, + std::vector<std::string> &Flags) { + if (Enabled) + Flags.push_back(std::string("+") + Flag); + else + Flags.push_back(std::string("-") + Flag); +} + +static bool isArmOrThumbArch(llvm::Triple::ArchType Arch) { + return Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb; +} + +static bool isMips32(llvm::Triple::ArchType Arch) { + return Arch == llvm::Triple::mips || Arch == llvm::Triple::mipsel; +} + +static bool isMips64(llvm::Triple::ArchType Arch) { + return Arch == llvm::Triple::mips64 || Arch == llvm::Triple::mips64el; +} + +static bool isMipsEL(llvm::Triple::ArchType Arch) { + return Arch == llvm::Triple::mipsel || Arch == llvm::Triple::mips64el; +} + +static bool isMips16(const ArgList &Args) { + Arg *A = Args.getLastArg(options::OPT_mips16, options::OPT_mno_mips16); + return A && A->getOption().matches(options::OPT_mips16); +} + +static bool isMicroMips(const ArgList &Args) { + Arg *A = Args.getLastArg(options::OPT_mmicromips, options::OPT_mno_micromips); + return A && A->getOption().matches(options::OPT_mmicromips); +} + +static Multilib makeMultilib(StringRef commonSuffix) { + return Multilib(commonSuffix, commonSuffix, commonSuffix); +} + +static bool findMipsCsMultilibs(const Multilib::flags_list &Flags, + FilterNonExistent &NonExistent, + DetectedMultilibs &Result) { + // Check for Code Sourcery toolchain multilibs + MultilibSet CSMipsMultilibs; + { + auto MArchMips16 = makeMultilib("/mips16").flag("+m32").flag("+mips16"); + + auto MArchMicroMips = + makeMultilib("/micromips").flag("+m32").flag("+mmicromips"); + + auto MArchDefault = makeMultilib("").flag("-mips16").flag("-mmicromips"); + + auto UCLibc = makeMultilib("/uclibc").flag("+muclibc"); + + auto SoftFloat = makeMultilib("/soft-float").flag("+msoft-float"); + + auto Nan2008 = makeMultilib("/nan2008").flag("+mnan=2008"); + + auto DefaultFloat = + makeMultilib("").flag("-msoft-float").flag("-mnan=2008"); + + auto BigEndian = makeMultilib("").flag("+EB").flag("-EL"); + + auto LittleEndian = makeMultilib("/el").flag("+EL").flag("-EB"); + + // Note that this one's osSuffix is "" + auto MAbi64 = makeMultilib("") + .gccSuffix("/64") + .includeSuffix("/64") + .flag("+mabi=n64") + .flag("-mabi=n32") + .flag("-m32"); + + CSMipsMultilibs = + MultilibSet() + .Either(MArchMips16, MArchMicroMips, MArchDefault) + .Maybe(UCLibc) + .Either(SoftFloat, Nan2008, DefaultFloat) + .FilterOut("/micromips/nan2008") + .FilterOut("/mips16/nan2008") + .Either(BigEndian, LittleEndian) + .Maybe(MAbi64) + .FilterOut("/mips16.*/64") + .FilterOut("/micromips.*/64") + .FilterOut(NonExistent) + .setIncludeDirsCallback([](const Multilib &M) { + std::vector<std::string> Dirs({"/include"}); + if (StringRef(M.includeSuffix()).startswith("/uclibc")) + Dirs.push_back( + "/../../../../mips-linux-gnu/libc/uclibc/usr/include"); + else + Dirs.push_back("/../../../../mips-linux-gnu/libc/usr/include"); + return Dirs; + }); + } + + MultilibSet DebianMipsMultilibs; + { + Multilib MAbiN32 = + Multilib().gccSuffix("/n32").includeSuffix("/n32").flag("+mabi=n32"); + + Multilib M64 = Multilib() + .gccSuffix("/64") + .includeSuffix("/64") + .flag("+m64") + .flag("-m32") + .flag("-mabi=n32"); + + Multilib M32 = Multilib().flag("-m64").flag("+m32").flag("-mabi=n32"); + + DebianMipsMultilibs = + MultilibSet().Either(M32, M64, MAbiN32).FilterOut(NonExistent); + } + + // Sort candidates. Toolchain that best meets the directories tree goes first. + // Then select the first toolchains matches command line flags. + MultilibSet *Candidates[] = {&CSMipsMultilibs, &DebianMipsMultilibs}; + if (CSMipsMultilibs.size() < DebianMipsMultilibs.size()) + std::iter_swap(Candidates, Candidates + 1); + for (const MultilibSet *Candidate : Candidates) { + if (Candidate->select(Flags, Result.SelectedMultilib)) { + if (Candidate == &DebianMipsMultilibs) + Result.BiarchSibling = Multilib(); + Result.Multilibs = *Candidate; + return true; + } + } + return false; +} + +static bool findMipsAndroidMultilibs(vfs::FileSystem &VFS, StringRef Path, + const Multilib::flags_list &Flags, + FilterNonExistent &NonExistent, + DetectedMultilibs &Result) { + + MultilibSet AndroidMipsMultilibs = + MultilibSet() + .Maybe(Multilib("/mips-r2").flag("+march=mips32r2")) + .Maybe(Multilib("/mips-r6").flag("+march=mips32r6")) + .FilterOut(NonExistent); + + MultilibSet AndroidMipselMultilibs = + MultilibSet() + .Either(Multilib().flag("+march=mips32"), + Multilib("/mips-r2", "", "/mips-r2").flag("+march=mips32r2"), + Multilib("/mips-r6", "", "/mips-r6").flag("+march=mips32r6")) + .FilterOut(NonExistent); + + MultilibSet AndroidMips64elMultilibs = + MultilibSet() + .Either( + Multilib().flag("+march=mips64r6"), + Multilib("/32/mips-r1", "", "/mips-r1").flag("+march=mips32"), + Multilib("/32/mips-r2", "", "/mips-r2").flag("+march=mips32r2"), + Multilib("/32/mips-r6", "", "/mips-r6").flag("+march=mips32r6")) + .FilterOut(NonExistent); + + MultilibSet *MS = &AndroidMipsMultilibs; + if (VFS.exists(Path + "/mips-r6")) + MS = &AndroidMipselMultilibs; + else if (VFS.exists(Path + "/32")) + MS = &AndroidMips64elMultilibs; + if (MS->select(Flags, Result.SelectedMultilib)) { + Result.Multilibs = *MS; + return true; + } + return false; +} + +static bool findMipsMuslMultilibs(const Multilib::flags_list &Flags, + FilterNonExistent &NonExistent, + DetectedMultilibs &Result) { + // Musl toolchain multilibs + MultilibSet MuslMipsMultilibs; + { + auto MArchMipsR2 = makeMultilib("") + .osSuffix("/mips-r2-hard-musl") + .flag("+EB") + .flag("-EL") + .flag("+march=mips32r2"); + + auto MArchMipselR2 = makeMultilib("/mipsel-r2-hard-musl") + .flag("-EB") + .flag("+EL") + .flag("+march=mips32r2"); + + MuslMipsMultilibs = MultilibSet().Either(MArchMipsR2, MArchMipselR2); + + // Specify the callback that computes the include directories. + MuslMipsMultilibs.setIncludeDirsCallback([](const Multilib &M) { + return std::vector<std::string>( + {"/../sysroot" + M.osSuffix() + "/usr/include"}); + }); + } + if (MuslMipsMultilibs.select(Flags, Result.SelectedMultilib)) { + Result.Multilibs = MuslMipsMultilibs; + return true; + } + return false; +} + +static bool findMipsMtiMultilibs(const Multilib::flags_list &Flags, + FilterNonExistent &NonExistent, + DetectedMultilibs &Result) { + // CodeScape MTI toolchain v1.2 and early. + MultilibSet MtiMipsMultilibsV1; + { + auto MArchMips32 = makeMultilib("/mips32") + .flag("+m32") + .flag("-m64") + .flag("-mmicromips") + .flag("+march=mips32"); + + auto MArchMicroMips = makeMultilib("/micromips") + .flag("+m32") + .flag("-m64") + .flag("+mmicromips"); + + auto MArchMips64r2 = makeMultilib("/mips64r2") + .flag("-m32") + .flag("+m64") + .flag("+march=mips64r2"); + + auto MArchMips64 = makeMultilib("/mips64").flag("-m32").flag("+m64").flag( + "-march=mips64r2"); + + auto MArchDefault = makeMultilib("") + .flag("+m32") + .flag("-m64") + .flag("-mmicromips") + .flag("+march=mips32r2"); + + auto Mips16 = makeMultilib("/mips16").flag("+mips16"); + + auto UCLibc = makeMultilib("/uclibc").flag("+muclibc"); + + auto MAbi64 = + makeMultilib("/64").flag("+mabi=n64").flag("-mabi=n32").flag("-m32"); + + auto BigEndian = makeMultilib("").flag("+EB").flag("-EL"); + + auto LittleEndian = makeMultilib("/el").flag("+EL").flag("-EB"); + + auto SoftFloat = makeMultilib("/sof").flag("+msoft-float"); + + auto Nan2008 = makeMultilib("/nan2008").flag("+mnan=2008"); + + MtiMipsMultilibsV1 = + MultilibSet() + .Either(MArchMips32, MArchMicroMips, MArchMips64r2, MArchMips64, + MArchDefault) + .Maybe(UCLibc) + .Maybe(Mips16) + .FilterOut("/mips64/mips16") + .FilterOut("/mips64r2/mips16") + .FilterOut("/micromips/mips16") + .Maybe(MAbi64) + .FilterOut("/micromips/64") + .FilterOut("/mips32/64") + .FilterOut("^/64") + .FilterOut("/mips16/64") + .Either(BigEndian, LittleEndian) + .Maybe(SoftFloat) + .Maybe(Nan2008) + .FilterOut(".*sof/nan2008") + .FilterOut(NonExistent) + .setIncludeDirsCallback([](const Multilib &M) { + std::vector<std::string> Dirs({"/include"}); + if (StringRef(M.includeSuffix()).startswith("/uclibc")) + Dirs.push_back("/../../../../sysroot/uclibc/usr/include"); + else + Dirs.push_back("/../../../../sysroot/usr/include"); + return Dirs; + }); + } + + // CodeScape IMG toolchain starting from v1.3. + MultilibSet MtiMipsMultilibsV2; + { + auto BeHard = makeMultilib("/mips-r2-hard") + .flag("+EB") + .flag("-msoft-float") + .flag("-mnan=2008") + .flag("-muclibc"); + auto BeSoft = makeMultilib("/mips-r2-soft") + .flag("+EB") + .flag("+msoft-float") + .flag("-mnan=2008"); + auto ElHard = makeMultilib("/mipsel-r2-hard") + .flag("+EL") + .flag("-msoft-float") + .flag("-mnan=2008") + .flag("-muclibc"); + auto ElSoft = makeMultilib("/mipsel-r2-soft") + .flag("+EL") + .flag("+msoft-float") + .flag("-mnan=2008") + .flag("-mmicromips"); + auto BeHardNan = makeMultilib("/mips-r2-hard-nan2008") + .flag("+EB") + .flag("-msoft-float") + .flag("+mnan=2008") + .flag("-muclibc"); + auto ElHardNan = makeMultilib("/mipsel-r2-hard-nan2008") + .flag("+EL") + .flag("-msoft-float") + .flag("+mnan=2008") + .flag("-muclibc") + .flag("-mmicromips"); + auto BeHardNanUclibc = makeMultilib("/mips-r2-hard-nan2008-uclibc") + .flag("+EB") + .flag("-msoft-float") + .flag("+mnan=2008") + .flag("+muclibc"); + auto ElHardNanUclibc = makeMultilib("/mipsel-r2-hard-nan2008-uclibc") + .flag("+EL") + .flag("-msoft-float") + .flag("+mnan=2008") + .flag("+muclibc"); + auto BeHardUclibc = makeMultilib("/mips-r2-hard-uclibc") + .flag("+EB") + .flag("-msoft-float") + .flag("-mnan=2008") + .flag("+muclibc"); + auto ElHardUclibc = makeMultilib("/mipsel-r2-hard-uclibc") + .flag("+EL") + .flag("-msoft-float") + .flag("-mnan=2008") + .flag("+muclibc"); + auto ElMicroHardNan = makeMultilib("/micromipsel-r2-hard-nan2008") + .flag("+EL") + .flag("-msoft-float") + .flag("+mnan=2008") + .flag("+mmicromips"); + auto ElMicroSoft = makeMultilib("/micromipsel-r2-soft") + .flag("+EL") + .flag("+msoft-float") + .flag("-mnan=2008") + .flag("+mmicromips"); + + auto O32 = + makeMultilib("/lib").osSuffix("").flag("-mabi=n32").flag("-mabi=n64"); + auto N32 = + makeMultilib("/lib32").osSuffix("").flag("+mabi=n32").flag("-mabi=n64"); + auto N64 = + makeMultilib("/lib64").osSuffix("").flag("-mabi=n32").flag("+mabi=n64"); + + MtiMipsMultilibsV2 = + MultilibSet() + .Either({BeHard, BeSoft, ElHard, ElSoft, BeHardNan, ElHardNan, + BeHardNanUclibc, ElHardNanUclibc, BeHardUclibc, + ElHardUclibc, ElMicroHardNan, ElMicroSoft}) + .Either(O32, N32, N64) + .FilterOut(NonExistent) + .setIncludeDirsCallback([](const Multilib &M) { + return std::vector<std::string>({"/../../../../sysroot" + + M.includeSuffix() + + "/../usr/include"}); + }) + .setFilePathsCallback([](const Multilib &M) { + return std::vector<std::string>( + {"/../../../../mips-mti-linux-gnu/lib" + M.gccSuffix()}); + }); + } + for (auto Candidate : {&MtiMipsMultilibsV1, &MtiMipsMultilibsV2}) { + if (Candidate->select(Flags, Result.SelectedMultilib)) { + Result.Multilibs = *Candidate; + return true; + } + } + return false; +} + +static bool findMipsImgMultilibs(const Multilib::flags_list &Flags, + FilterNonExistent &NonExistent, + DetectedMultilibs &Result) { + // CodeScape IMG toolchain v1.2 and early. + MultilibSet ImgMultilibsV1; + { + auto Mips64r6 = makeMultilib("/mips64r6").flag("+m64").flag("-m32"); + + auto LittleEndian = makeMultilib("/el").flag("+EL").flag("-EB"); + + auto MAbi64 = + makeMultilib("/64").flag("+mabi=n64").flag("-mabi=n32").flag("-m32"); + + ImgMultilibsV1 = + MultilibSet() + .Maybe(Mips64r6) + .Maybe(MAbi64) + .Maybe(LittleEndian) + .FilterOut(NonExistent) + .setIncludeDirsCallback([](const Multilib &M) { + return std::vector<std::string>( + {"/include", "/../../../../sysroot/usr/include"}); + }); + } + + // CodeScape IMG toolchain starting from v1.3. + MultilibSet ImgMultilibsV2; + { + auto BeHard = makeMultilib("/mips-r6-hard") + .flag("+EB") + .flag("-msoft-float") + .flag("-mmicromips"); + auto BeSoft = makeMultilib("/mips-r6-soft") + .flag("+EB") + .flag("+msoft-float") + .flag("-mmicromips"); + auto ElHard = makeMultilib("/mipsel-r6-hard") + .flag("+EL") + .flag("-msoft-float") + .flag("-mmicromips"); + auto ElSoft = makeMultilib("/mipsel-r6-soft") + .flag("+EL") + .flag("+msoft-float") + .flag("-mmicromips"); + auto BeMicroHard = makeMultilib("/micromips-r6-hard") + .flag("+EB") + .flag("-msoft-float") + .flag("+mmicromips"); + auto BeMicroSoft = makeMultilib("/micromips-r6-soft") + .flag("+EB") + .flag("+msoft-float") + .flag("+mmicromips"); + auto ElMicroHard = makeMultilib("/micromipsel-r6-hard") + .flag("+EL") + .flag("-msoft-float") + .flag("+mmicromips"); + auto ElMicroSoft = makeMultilib("/micromipsel-r6-soft") + .flag("+EL") + .flag("+msoft-float") + .flag("+mmicromips"); + + auto O32 = + makeMultilib("/lib").osSuffix("").flag("-mabi=n32").flag("-mabi=n64"); + auto N32 = + makeMultilib("/lib32").osSuffix("").flag("+mabi=n32").flag("-mabi=n64"); + auto N64 = + makeMultilib("/lib64").osSuffix("").flag("-mabi=n32").flag("+mabi=n64"); + + ImgMultilibsV2 = + MultilibSet() + .Either({BeHard, BeSoft, ElHard, ElSoft, BeMicroHard, BeMicroSoft, + ElMicroHard, ElMicroSoft}) + .Either(O32, N32, N64) + .FilterOut(NonExistent) + .setIncludeDirsCallback([](const Multilib &M) { + return std::vector<std::string>({"/../../../../sysroot" + + M.includeSuffix() + + "/../usr/include"}); + }) + .setFilePathsCallback([](const Multilib &M) { + return std::vector<std::string>( + {"/../../../../mips-img-linux-gnu/lib" + M.gccSuffix()}); + }); + } + for (auto Candidate : {&ImgMultilibsV1, &ImgMultilibsV2}) { + if (Candidate->select(Flags, Result.SelectedMultilib)) { + Result.Multilibs = *Candidate; + return true; + } + } + return false; +} + +bool clang::driver::findMIPSMultilibs(const Driver &D, + const llvm::Triple &TargetTriple, + StringRef Path, const ArgList &Args, + DetectedMultilibs &Result) { + FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS()); + + StringRef CPUName; + StringRef ABIName; + tools::mips::getMipsCPUAndABI(Args, TargetTriple, CPUName, ABIName); + + llvm::Triple::ArchType TargetArch = TargetTriple.getArch(); + + Multilib::flags_list Flags; + addMultilibFlag(isMips32(TargetArch), "m32", Flags); + addMultilibFlag(isMips64(TargetArch), "m64", Flags); + addMultilibFlag(isMips16(Args), "mips16", Flags); + addMultilibFlag(CPUName == "mips32", "march=mips32", Flags); + addMultilibFlag(CPUName == "mips32r2" || CPUName == "mips32r3" || + CPUName == "mips32r5" || CPUName == "p5600", + "march=mips32r2", Flags); + addMultilibFlag(CPUName == "mips32r6", "march=mips32r6", Flags); + addMultilibFlag(CPUName == "mips64", "march=mips64", Flags); + addMultilibFlag(CPUName == "mips64r2" || CPUName == "mips64r3" || + CPUName == "mips64r5" || CPUName == "octeon", + "march=mips64r2", Flags); + addMultilibFlag(CPUName == "mips64r6", "march=mips64r6", Flags); + addMultilibFlag(isMicroMips(Args), "mmicromips", Flags); + addMultilibFlag(tools::mips::isUCLibc(Args), "muclibc", Flags); + addMultilibFlag(tools::mips::isNaN2008(Args, TargetTriple), "mnan=2008", + Flags); + addMultilibFlag(ABIName == "n32", "mabi=n32", Flags); + addMultilibFlag(ABIName == "n64", "mabi=n64", Flags); + addMultilibFlag(isSoftFloatABI(Args), "msoft-float", Flags); + addMultilibFlag(!isSoftFloatABI(Args), "mhard-float", Flags); + addMultilibFlag(isMipsEL(TargetArch), "EL", Flags); + addMultilibFlag(!isMipsEL(TargetArch), "EB", Flags); + + if (TargetTriple.isAndroid()) + return findMipsAndroidMultilibs(D.getVFS(), Path, Flags, NonExistent, + Result); + + if (TargetTriple.getVendor() == llvm::Triple::MipsTechnologies && + TargetTriple.getOS() == llvm::Triple::Linux && + TargetTriple.getEnvironment() == llvm::Triple::UnknownEnvironment) + return findMipsMuslMultilibs(Flags, NonExistent, Result); + + if (TargetTriple.getVendor() == llvm::Triple::MipsTechnologies && + TargetTriple.getOS() == llvm::Triple::Linux && + TargetTriple.getEnvironment() == llvm::Triple::GNU) + return findMipsMtiMultilibs(Flags, NonExistent, Result); + + if (TargetTriple.getVendor() == llvm::Triple::ImaginationTechnologies && + TargetTriple.getOS() == llvm::Triple::Linux && + TargetTriple.getEnvironment() == llvm::Triple::GNU) + return findMipsImgMultilibs(Flags, NonExistent, Result); + + if (findMipsCsMultilibs(Flags, NonExistent, Result)) + return true; + + // Fallback to the regular toolchain-tree structure. + Multilib Default; + Result.Multilibs.push_back(Default); + Result.Multilibs.FilterOut(NonExistent); + + if (Result.Multilibs.select(Flags, Result.SelectedMultilib)) { + Result.BiarchSibling = Multilib(); + return true; + } + + return false; +} + +static void findAndroidArmMultilibs(const Driver &D, + const llvm::Triple &TargetTriple, + StringRef Path, const ArgList &Args, + DetectedMultilibs &Result) { + // Find multilibs with subdirectories like armv7-a, thumb, armv7-a/thumb. + FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS()); + Multilib ArmV7Multilib = makeMultilib("/armv7-a") + .flag("+march=armv7-a") + .flag("-mthumb"); + Multilib ThumbMultilib = makeMultilib("/thumb") + .flag("-march=armv7-a") + .flag("+mthumb"); + Multilib ArmV7ThumbMultilib = makeMultilib("/armv7-a/thumb") + .flag("+march=armv7-a") + .flag("+mthumb"); + Multilib DefaultMultilib = makeMultilib("") + .flag("-march=armv7-a") + .flag("-mthumb"); + MultilibSet AndroidArmMultilibs = + MultilibSet() + .Either(ThumbMultilib, ArmV7Multilib, + ArmV7ThumbMultilib, DefaultMultilib) + .FilterOut(NonExistent); + + Multilib::flags_list Flags; + llvm::StringRef Arch = Args.getLastArgValue(options::OPT_march_EQ); + bool IsArmArch = TargetTriple.getArch() == llvm::Triple::arm; + bool IsThumbArch = TargetTriple.getArch() == llvm::Triple::thumb; + bool IsV7SubArch = TargetTriple.getSubArch() == llvm::Triple::ARMSubArch_v7; + bool IsThumbMode = IsThumbArch || + Args.hasFlag(options::OPT_mthumb, options::OPT_mno_thumb, false) || + (IsArmArch && llvm::ARM::parseArchISA(Arch) == llvm::ARM::IK_THUMB); + bool IsArmV7Mode = (IsArmArch || IsThumbArch) && + (llvm::ARM::parseArchVersion(Arch) == 7 || + (IsArmArch && Arch == "" && IsV7SubArch)); + addMultilibFlag(IsArmV7Mode, "march=armv7-a", Flags); + addMultilibFlag(IsThumbMode, "mthumb", Flags); + + if (AndroidArmMultilibs.select(Flags, Result.SelectedMultilib)) + Result.Multilibs = AndroidArmMultilibs; +} + +static bool findBiarchMultilibs(const Driver &D, + const llvm::Triple &TargetTriple, + StringRef Path, const ArgList &Args, + bool NeedsBiarchSuffix, + DetectedMultilibs &Result) { + // Some versions of SUSE and Fedora on ppc64 put 32-bit libs + // in what would normally be GCCInstallPath and put the 64-bit + // libs in a subdirectory named 64. The simple logic we follow is that + // *if* there is a subdirectory of the right name with crtbegin.o in it, + // we use that. If not, and if not a biarch triple alias, we look for + // crtbegin.o without the subdirectory. + + Multilib Default; + Multilib Alt64 = Multilib() + .gccSuffix("/64") + .includeSuffix("/64") + .flag("-m32") + .flag("+m64") + .flag("-mx32"); + Multilib Alt32 = Multilib() + .gccSuffix("/32") + .includeSuffix("/32") + .flag("+m32") + .flag("-m64") + .flag("-mx32"); + Multilib Altx32 = Multilib() + .gccSuffix("/x32") + .includeSuffix("/x32") + .flag("-m32") + .flag("-m64") + .flag("+mx32"); + + // GCC toolchain for IAMCU doesn't have crtbegin.o, so look for libgcc.a. + FilterNonExistent NonExistent( + Path, TargetTriple.isOSIAMCU() ? "/libgcc.a" : "/crtbegin.o", D.getVFS()); + + // Determine default multilib from: 32, 64, x32 + // Also handle cases such as 64 on 32, 32 on 64, etc. + enum { UNKNOWN, WANT32, WANT64, WANTX32 } Want = UNKNOWN; + const bool IsX32 = TargetTriple.getEnvironment() == llvm::Triple::GNUX32; + if (TargetTriple.isArch32Bit() && !NonExistent(Alt32)) + Want = WANT64; + else if (TargetTriple.isArch64Bit() && IsX32 && !NonExistent(Altx32)) + Want = WANT64; + else if (TargetTriple.isArch64Bit() && !IsX32 && !NonExistent(Alt64)) + Want = WANT32; + else { + if (TargetTriple.isArch32Bit()) + Want = NeedsBiarchSuffix ? WANT64 : WANT32; + else if (IsX32) + Want = NeedsBiarchSuffix ? WANT64 : WANTX32; + else + Want = NeedsBiarchSuffix ? WANT32 : WANT64; + } + + if (Want == WANT32) + Default.flag("+m32").flag("-m64").flag("-mx32"); + else if (Want == WANT64) + Default.flag("-m32").flag("+m64").flag("-mx32"); + else if (Want == WANTX32) + Default.flag("-m32").flag("-m64").flag("+mx32"); + else + return false; + + Result.Multilibs.push_back(Default); + Result.Multilibs.push_back(Alt64); + Result.Multilibs.push_back(Alt32); + Result.Multilibs.push_back(Altx32); + + Result.Multilibs.FilterOut(NonExistent); + + Multilib::flags_list Flags; + addMultilibFlag(TargetTriple.isArch64Bit() && !IsX32, "m64", Flags); + addMultilibFlag(TargetTriple.isArch32Bit(), "m32", Flags); + addMultilibFlag(TargetTriple.isArch64Bit() && IsX32, "mx32", Flags); + + if (!Result.Multilibs.select(Flags, Result.SelectedMultilib)) + return false; + + if (Result.SelectedMultilib == Alt64 || Result.SelectedMultilib == Alt32 || + Result.SelectedMultilib == Altx32) + Result.BiarchSibling = Default; + + return true; +} + +/// Generic_GCC - A tool chain using the 'gcc' command to perform +/// all subcommands; this relies on gcc translating the majority of +/// command line options. + +/// \brief Less-than for GCCVersion, implementing a Strict Weak Ordering. +bool Generic_GCC::GCCVersion::isOlderThan(int RHSMajor, int RHSMinor, + int RHSPatch, + StringRef RHSPatchSuffix) const { + if (Major != RHSMajor) + return Major < RHSMajor; + if (Minor != RHSMinor) + return Minor < RHSMinor; + if (Patch != RHSPatch) { + // Note that versions without a specified patch sort higher than those with + // a patch. + if (RHSPatch == -1) + return true; + if (Patch == -1) + return false; + + // Otherwise just sort on the patch itself. + return Patch < RHSPatch; + } + if (PatchSuffix != RHSPatchSuffix) { + // Sort empty suffixes higher. + if (RHSPatchSuffix.empty()) + return true; + if (PatchSuffix.empty()) + return false; + + // Provide a lexicographic sort to make this a total ordering. + return PatchSuffix < RHSPatchSuffix; + } + + // The versions are equal. + return false; +} + +/// \brief Parse a GCCVersion object out of a string of text. +/// +/// This is the primary means of forming GCCVersion objects. +/*static*/ +Generic_GCC::GCCVersion Generic_GCC::GCCVersion::Parse(StringRef VersionText) { + const GCCVersion BadVersion = {VersionText.str(), -1, -1, -1, "", "", ""}; + std::pair<StringRef, StringRef> First = VersionText.split('.'); + std::pair<StringRef, StringRef> Second = First.second.split('.'); + + GCCVersion GoodVersion = {VersionText.str(), -1, -1, -1, "", "", ""}; + if (First.first.getAsInteger(10, GoodVersion.Major) || GoodVersion.Major < 0) + return BadVersion; + GoodVersion.MajorStr = First.first.str(); + if (First.second.empty()) + return GoodVersion; + if (Second.first.getAsInteger(10, GoodVersion.Minor) || GoodVersion.Minor < 0) + return BadVersion; + GoodVersion.MinorStr = Second.first.str(); + + // First look for a number prefix and parse that if present. Otherwise just + // stash the entire patch string in the suffix, and leave the number + // unspecified. This covers versions strings such as: + // 5 (handled above) + // 4.4 + // 4.4.0 + // 4.4.x + // 4.4.2-rc4 + // 4.4.x-patched + // And retains any patch number it finds. + StringRef PatchText = GoodVersion.PatchSuffix = Second.second.str(); + if (!PatchText.empty()) { + if (size_t EndNumber = PatchText.find_first_not_of("0123456789")) { + // Try to parse the number and any suffix. + if (PatchText.slice(0, EndNumber).getAsInteger(10, GoodVersion.Patch) || + GoodVersion.Patch < 0) + return BadVersion; + GoodVersion.PatchSuffix = PatchText.substr(EndNumber); + } + } + + return GoodVersion; +} + +static llvm::StringRef getGCCToolchainDir(const ArgList &Args) { + const Arg *A = Args.getLastArg(clang::driver::options::OPT_gcc_toolchain); + if (A) + return A->getValue(); + return GCC_INSTALL_PREFIX; +} + +/// \brief Initialize a GCCInstallationDetector from the driver. +/// +/// This performs all of the autodetection and sets up the various paths. +/// Once constructed, a GCCInstallationDetector is essentially immutable. +/// +/// FIXME: We shouldn't need an explicit TargetTriple parameter here, and +/// should instead pull the target out of the driver. This is currently +/// necessary because the driver doesn't store the final version of the target +/// triple. +void Generic_GCC::GCCInstallationDetector::init( + const llvm::Triple &TargetTriple, const ArgList &Args, + ArrayRef<std::string> ExtraTripleAliases) { + llvm::Triple BiarchVariantTriple = TargetTriple.isArch32Bit() + ? TargetTriple.get64BitArchVariant() + : TargetTriple.get32BitArchVariant(); + // The library directories which may contain GCC installations. + SmallVector<StringRef, 4> CandidateLibDirs, CandidateBiarchLibDirs; + // The compatible GCC triples for this particular architecture. + SmallVector<StringRef, 16> CandidateTripleAliases; + SmallVector<StringRef, 16> CandidateBiarchTripleAliases; + CollectLibDirsAndTriples(TargetTriple, BiarchVariantTriple, CandidateLibDirs, + CandidateTripleAliases, CandidateBiarchLibDirs, + CandidateBiarchTripleAliases); + + // Compute the set of prefixes for our search. + SmallVector<std::string, 8> Prefixes(D.PrefixDirs.begin(), + D.PrefixDirs.end()); + + StringRef GCCToolchainDir = getGCCToolchainDir(Args); + if (GCCToolchainDir != "") { + if (GCCToolchainDir.back() == '/') + GCCToolchainDir = GCCToolchainDir.drop_back(); // remove the / + + Prefixes.push_back(GCCToolchainDir); + } else { + // If we have a SysRoot, try that first. + if (!D.SysRoot.empty()) { + Prefixes.push_back(D.SysRoot); + Prefixes.push_back(D.SysRoot + "/usr"); + } + + // Then look for gcc installed alongside clang. + Prefixes.push_back(D.InstalledDir + "/.."); + + // Then look for distribution supplied gcc installations. + if (D.SysRoot.empty()) { + // Look for RHEL devtoolsets. + Prefixes.push_back("/opt/rh/devtoolset-6/root/usr"); + Prefixes.push_back("/opt/rh/devtoolset-4/root/usr"); + Prefixes.push_back("/opt/rh/devtoolset-3/root/usr"); + Prefixes.push_back("/opt/rh/devtoolset-2/root/usr"); + // And finally in /usr. + Prefixes.push_back("/usr"); + } + } + + // Try to respect gcc-config on Gentoo. However, do that only + // if --gcc-toolchain is not provided or equal to the Gentoo install + // in /usr. This avoids accidentally enforcing the system GCC version + // when using a custom toolchain. + if (GCCToolchainDir == "" || GCCToolchainDir == D.SysRoot + "/usr") { + for (StringRef CandidateTriple : ExtraTripleAliases) { + if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple)) + return; + } + for (StringRef CandidateTriple : CandidateTripleAliases) { + if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple)) + return; + } + for (StringRef CandidateTriple : CandidateBiarchTripleAliases) { + if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple, true)) + return; + } + } + + // Loop over the various components which exist and select the best GCC + // installation available. GCC installs are ranked by version number. + Version = GCCVersion::Parse("0.0.0"); + for (const std::string &Prefix : Prefixes) { + if (!D.getVFS().exists(Prefix)) + continue; + for (StringRef Suffix : CandidateLibDirs) { + const std::string LibDir = Prefix + Suffix.str(); + if (!D.getVFS().exists(LibDir)) + continue; + for (StringRef Candidate : ExtraTripleAliases) // Try these first. + ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate); + for (StringRef Candidate : CandidateTripleAliases) + ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate); + } + for (StringRef Suffix : CandidateBiarchLibDirs) { + const std::string LibDir = Prefix + Suffix.str(); + if (!D.getVFS().exists(LibDir)) + continue; + for (StringRef Candidate : CandidateBiarchTripleAliases) + ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate, + /*NeedsBiarchSuffix=*/ true); + } + } +} + +void Generic_GCC::GCCInstallationDetector::print(raw_ostream &OS) const { + for (const auto &InstallPath : CandidateGCCInstallPaths) + OS << "Found candidate GCC installation: " << InstallPath << "\n"; + + if (!GCCInstallPath.empty()) + OS << "Selected GCC installation: " << GCCInstallPath << "\n"; + + for (const auto &Multilib : Multilibs) + OS << "Candidate multilib: " << Multilib << "\n"; + + if (Multilibs.size() != 0 || !SelectedMultilib.isDefault()) + OS << "Selected multilib: " << SelectedMultilib << "\n"; +} + +bool Generic_GCC::GCCInstallationDetector::getBiarchSibling(Multilib &M) const { + if (BiarchSibling.hasValue()) { + M = BiarchSibling.getValue(); + return true; + } + return false; +} + +/*static*/ void Generic_GCC::GCCInstallationDetector::CollectLibDirsAndTriples( + const llvm::Triple &TargetTriple, const llvm::Triple &BiarchTriple, + SmallVectorImpl<StringRef> &LibDirs, + SmallVectorImpl<StringRef> &TripleAliases, + SmallVectorImpl<StringRef> &BiarchLibDirs, + SmallVectorImpl<StringRef> &BiarchTripleAliases) { + // Declare a bunch of static data sets that we'll select between below. These + // are specifically designed to always refer to string literals to avoid any + // lifetime or initialization issues. + static const char *const AArch64LibDirs[] = {"/lib64", "/lib"}; + static const char *const AArch64Triples[] = { + "aarch64-none-linux-gnu", "aarch64-linux-gnu", "aarch64-linux-android", + "aarch64-redhat-linux", "aarch64-suse-linux"}; + static const char *const AArch64beLibDirs[] = {"/lib"}; + static const char *const AArch64beTriples[] = {"aarch64_be-none-linux-gnu", + "aarch64_be-linux-gnu"}; + + static const char *const ARMLibDirs[] = {"/lib"}; + static const char *const ARMTriples[] = {"arm-linux-gnueabi", + "arm-linux-androideabi"}; + static const char *const ARMHFTriples[] = {"arm-linux-gnueabihf", + "armv7hl-redhat-linux-gnueabi", + "armv6hl-suse-linux-gnueabi", + "armv7hl-suse-linux-gnueabi"}; + static const char *const ARMebLibDirs[] = {"/lib"}; + static const char *const ARMebTriples[] = {"armeb-linux-gnueabi", + "armeb-linux-androideabi"}; + static const char *const ARMebHFTriples[] = { + "armeb-linux-gnueabihf", "armebv7hl-redhat-linux-gnueabi"}; + + static const char *const X86_64LibDirs[] = {"/lib64", "/lib"}; + static const char *const X86_64Triples[] = { + "x86_64-linux-gnu", "x86_64-unknown-linux-gnu", + "x86_64-pc-linux-gnu", "x86_64-redhat-linux6E", + "x86_64-redhat-linux", "x86_64-suse-linux", + "x86_64-manbo-linux-gnu", "x86_64-linux-gnu", + "x86_64-slackware-linux", "x86_64-linux-android", + "x86_64-unknown-linux"}; + static const char *const X32LibDirs[] = {"/libx32"}; + static const char *const X86LibDirs[] = {"/lib32", "/lib"}; + static const char *const X86Triples[] = { + "i686-linux-gnu", "i686-pc-linux-gnu", "i486-linux-gnu", + "i386-linux-gnu", "i386-redhat-linux6E", "i686-redhat-linux", + "i586-redhat-linux", "i386-redhat-linux", "i586-suse-linux", + "i486-slackware-linux", "i686-montavista-linux", "i686-linux-android", + "i586-linux-gnu"}; + + static const char *const MIPSLibDirs[] = {"/lib"}; + static const char *const MIPSTriples[] = {"mips-linux-gnu", "mips-mti-linux", + "mips-mti-linux-gnu", + "mips-img-linux-gnu"}; + static const char *const MIPSELLibDirs[] = {"/lib"}; + static const char *const MIPSELTriples[] = {"mipsel-linux-gnu", + "mips-img-linux-gnu"}; + + static const char *const MIPS64LibDirs[] = {"/lib64", "/lib"}; + static const char *const MIPS64Triples[] = { + "mips64-linux-gnu", "mips-mti-linux-gnu", "mips-img-linux-gnu", + "mips64-linux-gnuabi64"}; + static const char *const MIPS64ELLibDirs[] = {"/lib64", "/lib"}; + static const char *const MIPS64ELTriples[] = { + "mips64el-linux-gnu", "mips-mti-linux-gnu", "mips-img-linux-gnu", + "mips64el-linux-gnuabi64"}; + + static const char *const MIPSELAndroidLibDirs[] = {"/lib", "/libr2", + "/libr6"}; + static const char *const MIPSELAndroidTriples[] = {"mipsel-linux-android"}; + static const char *const MIPS64ELAndroidLibDirs[] = {"/lib64", "/lib", + "/libr2", "/libr6"}; + static const char *const MIPS64ELAndroidTriples[] = { + "mips64el-linux-android"}; + + static const char *const PPCLibDirs[] = {"/lib32", "/lib"}; + static const char *const PPCTriples[] = { + "powerpc-linux-gnu", "powerpc-unknown-linux-gnu", "powerpc-linux-gnuspe", + "powerpc-suse-linux", "powerpc-montavista-linuxspe"}; + static const char *const PPC64LibDirs[] = {"/lib64", "/lib"}; + static const char *const PPC64Triples[] = { + "powerpc64-linux-gnu", "powerpc64-unknown-linux-gnu", + "powerpc64-suse-linux", "ppc64-redhat-linux"}; + static const char *const PPC64LELibDirs[] = {"/lib64", "/lib"}; + static const char *const PPC64LETriples[] = { + "powerpc64le-linux-gnu", "powerpc64le-unknown-linux-gnu", + "powerpc64le-suse-linux", "ppc64le-redhat-linux"}; + + static const char *const SPARCv8LibDirs[] = {"/lib32", "/lib"}; + static const char *const SPARCv8Triples[] = {"sparc-linux-gnu", + "sparcv8-linux-gnu"}; + static const char *const SPARCv9LibDirs[] = {"/lib64", "/lib"}; + static const char *const SPARCv9Triples[] = {"sparc64-linux-gnu", + "sparcv9-linux-gnu"}; + + static const char *const SystemZLibDirs[] = {"/lib64", "/lib"}; + static const char *const SystemZTriples[] = { + "s390x-linux-gnu", "s390x-unknown-linux-gnu", "s390x-ibm-linux-gnu", + "s390x-suse-linux", "s390x-redhat-linux"}; + + // Solaris. + static const char *const SolarisSPARCLibDirs[] = {"/gcc"}; + static const char *const SolarisSPARCTriples[] = {"sparc-sun-solaris2.11", + "i386-pc-solaris2.11"}; + + using std::begin; + using std::end; + + if (TargetTriple.getOS() == llvm::Triple::Solaris) { + LibDirs.append(begin(SolarisSPARCLibDirs), end(SolarisSPARCLibDirs)); + TripleAliases.append(begin(SolarisSPARCTriples), end(SolarisSPARCTriples)); + return; + } + + switch (TargetTriple.getArch()) { + case llvm::Triple::aarch64: + LibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs)); + TripleAliases.append(begin(AArch64Triples), end(AArch64Triples)); + BiarchLibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs)); + BiarchTripleAliases.append(begin(AArch64Triples), end(AArch64Triples)); + break; + case llvm::Triple::aarch64_be: + LibDirs.append(begin(AArch64beLibDirs), end(AArch64beLibDirs)); + TripleAliases.append(begin(AArch64beTriples), end(AArch64beTriples)); + BiarchLibDirs.append(begin(AArch64beLibDirs), end(AArch64beLibDirs)); + BiarchTripleAliases.append(begin(AArch64beTriples), end(AArch64beTriples)); + break; + case llvm::Triple::arm: + case llvm::Triple::thumb: + LibDirs.append(begin(ARMLibDirs), end(ARMLibDirs)); + if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF) { + TripleAliases.append(begin(ARMHFTriples), end(ARMHFTriples)); + } else { + TripleAliases.append(begin(ARMTriples), end(ARMTriples)); + } + break; + case llvm::Triple::armeb: + case llvm::Triple::thumbeb: + LibDirs.append(begin(ARMebLibDirs), end(ARMebLibDirs)); + if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF) { + TripleAliases.append(begin(ARMebHFTriples), end(ARMebHFTriples)); + } else { + TripleAliases.append(begin(ARMebTriples), end(ARMebTriples)); + } + break; + case llvm::Triple::x86_64: + LibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs)); + TripleAliases.append(begin(X86_64Triples), end(X86_64Triples)); + // x32 is always available when x86_64 is available, so adding it as + // secondary arch with x86_64 triples + if (TargetTriple.getEnvironment() == llvm::Triple::GNUX32) { + BiarchLibDirs.append(begin(X32LibDirs), end(X32LibDirs)); + BiarchTripleAliases.append(begin(X86_64Triples), end(X86_64Triples)); + } else { + BiarchLibDirs.append(begin(X86LibDirs), end(X86LibDirs)); + BiarchTripleAliases.append(begin(X86Triples), end(X86Triples)); + } + break; + case llvm::Triple::x86: + LibDirs.append(begin(X86LibDirs), end(X86LibDirs)); + // MCU toolchain is 32 bit only and its triple alias is TargetTriple + // itself, which will be appended below. + if (!TargetTriple.isOSIAMCU()) { + TripleAliases.append(begin(X86Triples), end(X86Triples)); + BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs)); + BiarchTripleAliases.append(begin(X86_64Triples), end(X86_64Triples)); + } + break; + case llvm::Triple::mips: + LibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs)); + TripleAliases.append(begin(MIPSTriples), end(MIPSTriples)); + BiarchLibDirs.append(begin(MIPS64LibDirs), end(MIPS64LibDirs)); + BiarchTripleAliases.append(begin(MIPS64Triples), end(MIPS64Triples)); + break; + case llvm::Triple::mipsel: + if (TargetTriple.isAndroid()) { + LibDirs.append(begin(MIPSELAndroidLibDirs), end(MIPSELAndroidLibDirs)); + TripleAliases.append(begin(MIPSELAndroidTriples), + end(MIPSELAndroidTriples)); + BiarchLibDirs.append(begin(MIPS64ELAndroidLibDirs), + end(MIPS64ELAndroidLibDirs)); + BiarchTripleAliases.append(begin(MIPS64ELAndroidTriples), + end(MIPS64ELAndroidTriples)); + + } else { + LibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs)); + TripleAliases.append(begin(MIPSELTriples), end(MIPSELTriples)); + TripleAliases.append(begin(MIPSTriples), end(MIPSTriples)); + BiarchLibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs)); + BiarchTripleAliases.append(begin(MIPS64ELTriples), end(MIPS64ELTriples)); + } + break; + case llvm::Triple::mips64: + LibDirs.append(begin(MIPS64LibDirs), end(MIPS64LibDirs)); + TripleAliases.append(begin(MIPS64Triples), end(MIPS64Triples)); + BiarchLibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs)); + BiarchTripleAliases.append(begin(MIPSTriples), end(MIPSTriples)); + break; + case llvm::Triple::mips64el: + if (TargetTriple.isAndroid()) { + LibDirs.append(begin(MIPS64ELAndroidLibDirs), + end(MIPS64ELAndroidLibDirs)); + TripleAliases.append(begin(MIPS64ELAndroidTriples), + end(MIPS64ELAndroidTriples)); + BiarchLibDirs.append(begin(MIPSELAndroidLibDirs), + end(MIPSELAndroidLibDirs)); + BiarchTripleAliases.append(begin(MIPSELAndroidTriples), + end(MIPSELAndroidTriples)); + + } else { + LibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs)); + TripleAliases.append(begin(MIPS64ELTriples), end(MIPS64ELTriples)); + BiarchLibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs)); + BiarchTripleAliases.append(begin(MIPSELTriples), end(MIPSELTriples)); + BiarchTripleAliases.append(begin(MIPSTriples), end(MIPSTriples)); + } + break; + case llvm::Triple::ppc: + LibDirs.append(begin(PPCLibDirs), end(PPCLibDirs)); + TripleAliases.append(begin(PPCTriples), end(PPCTriples)); + BiarchLibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs)); + BiarchTripleAliases.append(begin(PPC64Triples), end(PPC64Triples)); + break; + case llvm::Triple::ppc64: + LibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs)); + TripleAliases.append(begin(PPC64Triples), end(PPC64Triples)); + BiarchLibDirs.append(begin(PPCLibDirs), end(PPCLibDirs)); + BiarchTripleAliases.append(begin(PPCTriples), end(PPCTriples)); + break; + case llvm::Triple::ppc64le: + LibDirs.append(begin(PPC64LELibDirs), end(PPC64LELibDirs)); + TripleAliases.append(begin(PPC64LETriples), end(PPC64LETriples)); + break; + case llvm::Triple::sparc: + case llvm::Triple::sparcel: + LibDirs.append(begin(SPARCv8LibDirs), end(SPARCv8LibDirs)); + TripleAliases.append(begin(SPARCv8Triples), end(SPARCv8Triples)); + BiarchLibDirs.append(begin(SPARCv9LibDirs), end(SPARCv9LibDirs)); + BiarchTripleAliases.append(begin(SPARCv9Triples), end(SPARCv9Triples)); + break; + case llvm::Triple::sparcv9: + LibDirs.append(begin(SPARCv9LibDirs), end(SPARCv9LibDirs)); + TripleAliases.append(begin(SPARCv9Triples), end(SPARCv9Triples)); + BiarchLibDirs.append(begin(SPARCv8LibDirs), end(SPARCv8LibDirs)); + BiarchTripleAliases.append(begin(SPARCv8Triples), end(SPARCv8Triples)); + break; + case llvm::Triple::systemz: + LibDirs.append(begin(SystemZLibDirs), end(SystemZLibDirs)); + TripleAliases.append(begin(SystemZTriples), end(SystemZTriples)); + break; + default: + // By default, just rely on the standard lib directories and the original + // triple. + break; + } + + // Always append the drivers target triple to the end, in case it doesn't + // match any of our aliases. + TripleAliases.push_back(TargetTriple.str()); + + // Also include the multiarch variant if it's different. + if (TargetTriple.str() != BiarchTriple.str()) + BiarchTripleAliases.push_back(BiarchTriple.str()); +} + +void Generic_GCC::GCCInstallationDetector::scanLibDirForGCCTripleSolaris( + const llvm::Triple &TargetArch, const llvm::opt::ArgList &Args, + const std::string &LibDir, StringRef CandidateTriple, + bool NeedsBiarchSuffix) { + // Solaris is a special case. The GCC installation is under + // /usr/gcc/<major>.<minor>/lib/gcc/<triple>/<major>.<minor>.<patch>/, so we + // need to iterate twice. + std::error_code EC; + for (vfs::directory_iterator LI = D.getVFS().dir_begin(LibDir, EC), LE; + !EC && LI != LE; LI = LI.increment(EC)) { + StringRef VersionText = llvm::sys::path::filename(LI->getName()); + GCCVersion CandidateVersion = GCCVersion::Parse(VersionText); + + if (CandidateVersion.Major != -1) // Filter obviously bad entries. + if (!CandidateGCCInstallPaths.insert(LI->getName()).second) + continue; // Saw this path before; no need to look at it again. + if (CandidateVersion.isOlderThan(4, 1, 1)) + continue; + if (CandidateVersion <= Version) + continue; + + GCCInstallPath = + LibDir + "/" + VersionText.str() + "/lib/gcc/" + CandidateTriple.str(); + if (!D.getVFS().exists(GCCInstallPath)) + continue; + + // If we make it here there has to be at least one GCC version, let's just + // use the latest one. + std::error_code EEC; + for (vfs::directory_iterator + LLI = D.getVFS().dir_begin(GCCInstallPath, EEC), + LLE; + !EEC && LLI != LLE; LLI = LLI.increment(EEC)) { + + StringRef SubVersionText = llvm::sys::path::filename(LLI->getName()); + GCCVersion CandidateSubVersion = GCCVersion::Parse(SubVersionText); + + if (CandidateSubVersion > Version) + Version = CandidateSubVersion; + } + + GCCTriple.setTriple(CandidateTriple); + + GCCInstallPath += "/" + Version.Text; + GCCParentLibPath = GCCInstallPath + "/../../../../"; + + IsValid = true; + } +} + +bool Generic_GCC::GCCInstallationDetector::ScanGCCForMultilibs( + const llvm::Triple &TargetTriple, const ArgList &Args, + StringRef Path, bool NeedsBiarchSuffix) { + llvm::Triple::ArchType TargetArch = TargetTriple.getArch(); + DetectedMultilibs Detected; + + // Android standalone toolchain could have multilibs for ARM and Thumb. + // Debian mips multilibs behave more like the rest of the biarch ones, + // so handle them there + if (isArmOrThumbArch(TargetArch) && TargetTriple.isAndroid()) { + // It should also work without multilibs in a simplified toolchain. + findAndroidArmMultilibs(D, TargetTriple, Path, Args, Detected); + } else if (tools::isMipsArch(TargetArch)) { + if (!findMIPSMultilibs(D, TargetTriple, Path, Args, Detected)) + return false; + } else if (!findBiarchMultilibs(D, TargetTriple, Path, Args, + NeedsBiarchSuffix, Detected)) { + return false; + } + + Multilibs = Detected.Multilibs; + SelectedMultilib = Detected.SelectedMultilib; + BiarchSibling = Detected.BiarchSibling; + + return true; +} + +void Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple( + const llvm::Triple &TargetTriple, const ArgList &Args, + const std::string &LibDir, StringRef CandidateTriple, + bool NeedsBiarchSuffix) { + if (TargetTriple.getOS() == llvm::Triple::Solaris) { + scanLibDirForGCCTripleSolaris(TargetTriple, Args, LibDir, CandidateTriple, + NeedsBiarchSuffix); + return; + } + + llvm::Triple::ArchType TargetArch = TargetTriple.getArch(); + // Locations relative to the system lib directory where GCC's triple-specific + // directories might reside. + struct GCCLibSuffix { + // Path from system lib directory to GCC triple-specific directory. + std::string LibSuffix; + // Path from GCC triple-specific directory back to system lib directory. + // This is one '..' component per component in LibSuffix. + StringRef ReversePath; + // Whether this library suffix is relevant for the triple. + bool Active; + } Suffixes[] = { + // This is the normal place. + {"gcc/" + CandidateTriple.str(), "../..", true}, + + // Debian puts cross-compilers in gcc-cross. + {"gcc-cross/" + CandidateTriple.str(), "../..", true}, + + // The Freescale PPC SDK has the gcc libraries in + // <sysroot>/usr/lib/<triple>/x.y.z so have a look there as well. Only do + // this on Freescale triples, though, since some systems put a *lot* of + // files in that location, not just GCC installation data. + {CandidateTriple.str(), "..", + TargetTriple.getVendor() == llvm::Triple::Freescale}, + + // Natively multiarch systems sometimes put the GCC triple-specific + // directory within their multiarch lib directory, resulting in the + // triple appearing twice. + {CandidateTriple.str() + "/gcc/" + CandidateTriple.str(), "../../..", true}, + + // Deal with cases (on Ubuntu) where the system architecture could be i386 + // but the GCC target architecture could be (say) i686. + // FIXME: It may be worthwhile to generalize this and look for a second + // triple. + {"i386-linux-gnu/gcc/" + CandidateTriple.str(), "../../..", + TargetArch == llvm::Triple::x86} + }; + + for (auto &Suffix : Suffixes) { + if (!Suffix.Active) + continue; + + StringRef LibSuffix = Suffix.LibSuffix; + std::error_code EC; + for (vfs::directory_iterator + LI = D.getVFS().dir_begin(LibDir + "/" + LibSuffix, EC), + LE; + !EC && LI != LE; LI = LI.increment(EC)) { + StringRef VersionText = llvm::sys::path::filename(LI->getName()); + GCCVersion CandidateVersion = GCCVersion::Parse(VersionText); + if (CandidateVersion.Major != -1) // Filter obviously bad entries. + if (!CandidateGCCInstallPaths.insert(LI->getName()).second) + continue; // Saw this path before; no need to look at it again. + if (CandidateVersion.isOlderThan(4, 1, 1)) + continue; + if (CandidateVersion <= Version) + continue; + + if (!ScanGCCForMultilibs(TargetTriple, Args, LI->getName(), + NeedsBiarchSuffix)) + continue; + + Version = CandidateVersion; + GCCTriple.setTriple(CandidateTriple); + // FIXME: We hack together the directory name here instead of + // using LI to ensure stable path separators across Windows and + // Linux. + GCCInstallPath = (LibDir + "/" + LibSuffix + "/" + VersionText).str(); + GCCParentLibPath = (GCCInstallPath + "/../" + Suffix.ReversePath).str(); + IsValid = true; + } + } +} + +bool Generic_GCC::GCCInstallationDetector::ScanGentooGccConfig( + const llvm::Triple &TargetTriple, const ArgList &Args, + StringRef CandidateTriple, bool NeedsBiarchSuffix) { + llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> File = + D.getVFS().getBufferForFile(D.SysRoot + "/etc/env.d/gcc/config-" + + CandidateTriple.str()); + if (File) { + SmallVector<StringRef, 2> Lines; + File.get()->getBuffer().split(Lines, "\n"); + for (StringRef Line : Lines) { + Line = Line.trim(); + // CURRENT=triple-version + if (Line.consume_front("CURRENT=")) { + const std::pair<StringRef, StringRef> ActiveVersion = + Line.rsplit('-'); + // Note: Strictly speaking, we should be reading + // /etc/env.d/gcc/${CURRENT} now. However, the file doesn't + // contain anything new or especially useful to us. + const std::string GentooPath = D.SysRoot + "/usr/lib/gcc/" + + ActiveVersion.first.str() + "/" + + ActiveVersion.second.str(); + if (D.getVFS().exists(GentooPath + "/crtbegin.o")) { + if (!ScanGCCForMultilibs(TargetTriple, Args, GentooPath, + NeedsBiarchSuffix)) + return false; + + Version = GCCVersion::Parse(ActiveVersion.second); + GCCInstallPath = GentooPath; + GCCParentLibPath = GentooPath + "/../../.."; + GCCTriple.setTriple(ActiveVersion.first); + IsValid = true; + return true; + } + } + } + } + + return false; +} + +Generic_GCC::Generic_GCC(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : ToolChain(D, Triple, Args), GCCInstallation(D), + CudaInstallation(D, Triple, Args) { + getProgramPaths().push_back(getDriver().getInstalledDir()); + if (getDriver().getInstalledDir() != getDriver().Dir) + getProgramPaths().push_back(getDriver().Dir); +} + +Generic_GCC::~Generic_GCC() {} + +Tool *Generic_GCC::getTool(Action::ActionClass AC) const { + switch (AC) { + case Action::PreprocessJobClass: + if (!Preprocess) + Preprocess.reset(new clang::driver::tools::gcc::Preprocessor(*this)); + return Preprocess.get(); + case Action::CompileJobClass: + if (!Compile) + Compile.reset(new tools::gcc::Compiler(*this)); + return Compile.get(); + default: + return ToolChain::getTool(AC); + } +} + +Tool *Generic_GCC::buildAssembler() const { + return new tools::gnutools::Assembler(*this); +} + +Tool *Generic_GCC::buildLinker() const { return new tools::gcc::Linker(*this); } + +void Generic_GCC::printVerboseInfo(raw_ostream &OS) const { + // Print the information about how we detected the GCC installation. + GCCInstallation.print(OS); + CudaInstallation.print(OS); +} + +bool Generic_GCC::IsUnwindTablesDefault(const ArgList &Args) const { + return getArch() == llvm::Triple::x86_64; +} + +bool Generic_GCC::isPICDefault() const { + switch (getArch()) { + case llvm::Triple::x86_64: + return getTriple().isOSWindows(); + case llvm::Triple::ppc64: + case llvm::Triple::ppc64le: + return !getTriple().isOSBinFormatMachO() && !getTriple().isMacOSX(); + case llvm::Triple::mips64: + case llvm::Triple::mips64el: + return true; + default: + return false; + } +} + +bool Generic_GCC::isPIEDefault() const { return false; } + +bool Generic_GCC::isPICDefaultForced() const { + return getArch() == llvm::Triple::x86_64 && getTriple().isOSWindows(); +} + +bool Generic_GCC::IsIntegratedAssemblerDefault() const { + switch (getTriple().getArch()) { + case llvm::Triple::x86: + case llvm::Triple::x86_64: + case llvm::Triple::aarch64: + case llvm::Triple::aarch64_be: + case llvm::Triple::arm: + case llvm::Triple::armeb: + case llvm::Triple::avr: + case llvm::Triple::bpfel: + case llvm::Triple::bpfeb: + case llvm::Triple::thumb: + case llvm::Triple::thumbeb: + case llvm::Triple::ppc: + case llvm::Triple::ppc64: + case llvm::Triple::ppc64le: + case llvm::Triple::systemz: + case llvm::Triple::mips: + case llvm::Triple::mipsel: + return true; + case llvm::Triple::mips64: + case llvm::Triple::mips64el: + // Enabled for Debian and Android mips64/mipsel, as they can precisely + // identify the ABI in use (Debian) or only use N64 for MIPS64 (Android). + // Other targets are unable to distinguish N32 from N64. + if (getTriple().getEnvironment() == llvm::Triple::GNUABI64 || + getTriple().isAndroid()) + return true; + return false; + default: + return false; + } +} + +void Generic_GCC::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + if (DriverArgs.hasArg(options::OPT_nostdlibinc) || + DriverArgs.hasArg(options::OPT_nostdincxx)) + return; + + switch (GetCXXStdlibType(DriverArgs)) { + case ToolChain::CST_Libcxx: { + std::string Path = findLibCxxIncludePath(); + if (!Path.empty()) + addSystemInclude(DriverArgs, CC1Args, Path); + break; + } + + case ToolChain::CST_Libstdcxx: + addLibStdCxxIncludePaths(DriverArgs, CC1Args); + break; + } +} + +std::string Generic_GCC::findLibCxxIncludePath() const { + // FIXME: The Linux behavior would probaby be a better approach here. + return getDriver().SysRoot + "/usr/include/c++/v1"; +} + +void +Generic_GCC::addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const { + // By default, we don't assume we know where libstdc++ might be installed. + // FIXME: If we have a valid GCCInstallation, use it. +} + +/// \brief Helper to add the variant paths of a libstdc++ installation. +bool Generic_GCC::addLibStdCXXIncludePaths( + Twine Base, Twine Suffix, StringRef GCCTriple, StringRef GCCMultiarchTriple, + StringRef TargetMultiarchTriple, Twine IncludeSuffix, + const ArgList &DriverArgs, ArgStringList &CC1Args) const { + if (!getVFS().exists(Base + Suffix)) + return false; + + addSystemInclude(DriverArgs, CC1Args, Base + Suffix); + + // The vanilla GCC layout of libstdc++ headers uses a triple subdirectory. If + // that path exists or we have neither a GCC nor target multiarch triple, use + // this vanilla search path. + if ((GCCMultiarchTriple.empty() && TargetMultiarchTriple.empty()) || + getVFS().exists(Base + Suffix + "/" + GCCTriple + IncludeSuffix)) { + addSystemInclude(DriverArgs, CC1Args, + Base + Suffix + "/" + GCCTriple + IncludeSuffix); + } else { + // Otherwise try to use multiarch naming schemes which have normalized the + // triples and put the triple before the suffix. + // + // GCC surprisingly uses *both* the GCC triple with a multilib suffix and + // the target triple, so we support that here. + addSystemInclude(DriverArgs, CC1Args, + Base + "/" + GCCMultiarchTriple + Suffix + IncludeSuffix); + addSystemInclude(DriverArgs, CC1Args, + Base + "/" + TargetMultiarchTriple + Suffix); + } + + addSystemInclude(DriverArgs, CC1Args, Base + Suffix + "/backward"); + return true; +} + +llvm::opt::DerivedArgList * +Generic_GCC::TranslateArgs(const llvm::opt::DerivedArgList &Args, StringRef, + Action::OffloadKind DeviceOffloadKind) const { + + // If this tool chain is used for an OpenMP offloading device we have to make + // sure we always generate a shared library regardless of the commands the + // user passed to the host. This is required because the runtime library + // is required to load the device image dynamically at run time. + if (DeviceOffloadKind == Action::OFK_OpenMP) { + DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs()); + const OptTable &Opts = getDriver().getOpts(); + + // Request the shared library. Given that these options are decided + // implicitly, they do not refer to any base argument. + DAL->AddFlagArg(/*BaseArg=*/nullptr, Opts.getOption(options::OPT_shared)); + DAL->AddFlagArg(/*BaseArg=*/nullptr, Opts.getOption(options::OPT_fPIC)); + + // Filter all the arguments we don't care passing to the offloading + // toolchain as they can mess up with the creation of a shared library. + for (auto *A : Args) { + switch ((options::ID)A->getOption().getID()) { + default: + DAL->append(A); + break; + case options::OPT_shared: + case options::OPT_dynamic: + case options::OPT_static: + case options::OPT_fPIC: + case options::OPT_fno_PIC: + case options::OPT_fpic: + case options::OPT_fno_pic: + case options::OPT_fPIE: + case options::OPT_fno_PIE: + case options::OPT_fpie: + case options::OPT_fno_pie: + break; + } + } + return DAL; + } + return nullptr; +} + +void Generic_ELF::anchor() {} + +void Generic_ELF::addClangTargetOptions(const ArgList &DriverArgs, + ArgStringList &CC1Args, + Action::OffloadKind) const { + const Generic_GCC::GCCVersion &V = GCCInstallation.getVersion(); + bool UseInitArrayDefault = + getTriple().getArch() == llvm::Triple::aarch64 || + getTriple().getArch() == llvm::Triple::aarch64_be || + (getTriple().getOS() == llvm::Triple::Linux && + (!V.isOlderThan(4, 7, 0) || getTriple().isAndroid())) || + getTriple().getOS() == llvm::Triple::NaCl || + (getTriple().getVendor() == llvm::Triple::MipsTechnologies && + !getTriple().hasEnvironment()) || + getTriple().getOS() == llvm::Triple::Solaris; + + if (DriverArgs.hasFlag(options::OPT_fuse_init_array, + options::OPT_fno_use_init_array, UseInitArrayDefault)) + CC1Args.push_back("-fuse-init-array"); +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Gnu.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Gnu.h new file mode 100644 index 0000000..f29342b --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Gnu.h @@ -0,0 +1,352 @@ +//===--- Gnu.h - Gnu Tool and ToolChain Implementations ---------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_GNU_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_GNU_H + +#include "Cuda.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" +#include <set> + +namespace clang { +namespace driver { + +struct DetectedMultilibs { + /// The set of multilibs that the detected installation supports. + MultilibSet Multilibs; + + /// The primary multilib appropriate for the given flags. + Multilib SelectedMultilib; + + /// On Biarch systems, this corresponds to the default multilib when + /// targeting the non-default multilib. Otherwise, it is empty. + llvm::Optional<Multilib> BiarchSibling; +}; + +bool findMIPSMultilibs(const Driver &D, const llvm::Triple &TargetTriple, + StringRef Path, const llvm::opt::ArgList &Args, + DetectedMultilibs &Result); + +namespace tools { + +/// \brief Base class for all GNU tools that provide the same behavior when +/// it comes to response files support +class LLVM_LIBRARY_VISIBILITY GnuTool : public Tool { + virtual void anchor(); + +public: + GnuTool(const char *Name, const char *ShortName, const ToolChain &TC) + : Tool(Name, ShortName, TC, RF_Full, llvm::sys::WEM_CurrentCodePage) {} +}; + +/// Directly call GNU Binutils' assembler and linker. +namespace gnutools { +class LLVM_LIBRARY_VISIBILITY Assembler : public GnuTool { +public: + Assembler(const ToolChain &TC) : GnuTool("GNU::Assembler", "assembler", TC) {} + + bool hasIntegratedCPP() const override { return false; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +class LLVM_LIBRARY_VISIBILITY Linker : public GnuTool { +public: + Linker(const ToolChain &TC) : GnuTool("GNU::Linker", "linker", TC) {} + + bool hasIntegratedCPP() const override { return false; } + bool isLinkJob() const override { return true; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; +} // end namespace gnutools + +/// gcc - Generic GCC tool implementations. +namespace gcc { +class LLVM_LIBRARY_VISIBILITY Common : public GnuTool { +public: + Common(const char *Name, const char *ShortName, const ToolChain &TC) + : GnuTool(Name, ShortName, TC) {} + + // A gcc tool has an "integrated" assembler that it will call to produce an + // object. Let it use that assembler so that we don't have to deal with + // assembly syntax incompatibilities. + bool hasIntegratedAssembler() const override { return true; } + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; + + /// RenderExtraToolArgs - Render any arguments necessary to force + /// the particular tool mode. + virtual void RenderExtraToolArgs(const JobAction &JA, + llvm::opt::ArgStringList &CmdArgs) const = 0; +}; + +class LLVM_LIBRARY_VISIBILITY Preprocessor : public Common { +public: + Preprocessor(const ToolChain &TC) + : Common("gcc::Preprocessor", "gcc preprocessor", TC) {} + + bool hasGoodDiagnostics() const override { return true; } + bool hasIntegratedCPP() const override { return false; } + + void RenderExtraToolArgs(const JobAction &JA, + llvm::opt::ArgStringList &CmdArgs) const override; +}; + +class LLVM_LIBRARY_VISIBILITY Compiler : public Common { +public: + Compiler(const ToolChain &TC) : Common("gcc::Compiler", "gcc frontend", TC) {} + + bool hasGoodDiagnostics() const override { return true; } + bool hasIntegratedCPP() const override { return true; } + + void RenderExtraToolArgs(const JobAction &JA, + llvm::opt::ArgStringList &CmdArgs) const override; +}; + +class LLVM_LIBRARY_VISIBILITY Linker : public Common { +public: + Linker(const ToolChain &TC) : Common("gcc::Linker", "linker (via gcc)", TC) {} + + bool hasIntegratedCPP() const override { return false; } + bool isLinkJob() const override { return true; } + + void RenderExtraToolArgs(const JobAction &JA, + llvm::opt::ArgStringList &CmdArgs) const override; +}; +} // end namespace gcc +} // end namespace tools + +namespace toolchains { + +/// Generic_GCC - A tool chain using the 'gcc' command to perform +/// all subcommands; this relies on gcc translating the majority of +/// command line options. +class LLVM_LIBRARY_VISIBILITY Generic_GCC : public ToolChain { +public: + /// \brief Struct to store and manipulate GCC versions. + /// + /// We rely on assumptions about the form and structure of GCC version + /// numbers: they consist of at most three '.'-separated components, and each + /// component is a non-negative integer except for the last component. For + /// the last component we are very flexible in order to tolerate release + /// candidates or 'x' wildcards. + /// + /// Note that the ordering established among GCCVersions is based on the + /// preferred version string to use. For example we prefer versions without + /// a hard-coded patch number to those with a hard coded patch number. + /// + /// Currently this doesn't provide any logic for textual suffixes to patches + /// in the way that (for example) Debian's version format does. If that ever + /// becomes necessary, it can be added. + struct GCCVersion { + /// \brief The unparsed text of the version. + std::string Text; + + /// \brief The parsed major, minor, and patch numbers. + int Major, Minor, Patch; + + /// \brief The text of the parsed major, and major+minor versions. + std::string MajorStr, MinorStr; + + /// \brief Any textual suffix on the patch number. + std::string PatchSuffix; + + static GCCVersion Parse(StringRef VersionText); + bool isOlderThan(int RHSMajor, int RHSMinor, int RHSPatch, + StringRef RHSPatchSuffix = StringRef()) const; + bool operator<(const GCCVersion &RHS) const { + return isOlderThan(RHS.Major, RHS.Minor, RHS.Patch, RHS.PatchSuffix); + } + bool operator>(const GCCVersion &RHS) const { return RHS < *this; } + bool operator<=(const GCCVersion &RHS) const { return !(*this > RHS); } + bool operator>=(const GCCVersion &RHS) const { return !(*this < RHS); } + }; + + /// \brief This is a class to find a viable GCC installation for Clang to + /// use. + /// + /// This class tries to find a GCC installation on the system, and report + /// information about it. It starts from the host information provided to the + /// Driver, and has logic for fuzzing that where appropriate. + class GCCInstallationDetector { + bool IsValid; + llvm::Triple GCCTriple; + const Driver &D; + + // FIXME: These might be better as path objects. + std::string GCCInstallPath; + std::string GCCParentLibPath; + + /// The primary multilib appropriate for the given flags. + Multilib SelectedMultilib; + /// On Biarch systems, this corresponds to the default multilib when + /// targeting the non-default multilib. Otherwise, it is empty. + llvm::Optional<Multilib> BiarchSibling; + + GCCVersion Version; + + // We retain the list of install paths that were considered and rejected in + // order to print out detailed information in verbose mode. + std::set<std::string> CandidateGCCInstallPaths; + + /// The set of multilibs that the detected installation supports. + MultilibSet Multilibs; + + public: + explicit GCCInstallationDetector(const Driver &D) : IsValid(false), D(D) {} + void init(const llvm::Triple &TargetTriple, const llvm::opt::ArgList &Args, + ArrayRef<std::string> ExtraTripleAliases = None); + + /// \brief Check whether we detected a valid GCC install. + bool isValid() const { return IsValid; } + + /// \brief Get the GCC triple for the detected install. + const llvm::Triple &getTriple() const { return GCCTriple; } + + /// \brief Get the detected GCC installation path. + StringRef getInstallPath() const { return GCCInstallPath; } + + /// \brief Get the detected GCC parent lib path. + StringRef getParentLibPath() const { return GCCParentLibPath; } + + /// \brief Get the detected Multilib + const Multilib &getMultilib() const { return SelectedMultilib; } + + /// \brief Get the whole MultilibSet + const MultilibSet &getMultilibs() const { return Multilibs; } + + /// Get the biarch sibling multilib (if it exists). + /// \return true iff such a sibling exists + bool getBiarchSibling(Multilib &M) const; + + /// \brief Get the detected GCC version string. + const GCCVersion &getVersion() const { return Version; } + + /// \brief Print information about the detected GCC installation. + void print(raw_ostream &OS) const; + + private: + static void + CollectLibDirsAndTriples(const llvm::Triple &TargetTriple, + const llvm::Triple &BiarchTriple, + SmallVectorImpl<StringRef> &LibDirs, + SmallVectorImpl<StringRef> &TripleAliases, + SmallVectorImpl<StringRef> &BiarchLibDirs, + SmallVectorImpl<StringRef> &BiarchTripleAliases); + + bool ScanGCCForMultilibs(const llvm::Triple &TargetTriple, + const llvm::opt::ArgList &Args, + StringRef Path, + bool NeedsBiarchSuffix = false); + + void ScanLibDirForGCCTriple(const llvm::Triple &TargetArch, + const llvm::opt::ArgList &Args, + const std::string &LibDir, + StringRef CandidateTriple, + bool NeedsBiarchSuffix = false); + + void scanLibDirForGCCTripleSolaris(const llvm::Triple &TargetArch, + const llvm::opt::ArgList &Args, + const std::string &LibDir, + StringRef CandidateTriple, + bool NeedsBiarchSuffix = false); + + bool ScanGentooGccConfig(const llvm::Triple &TargetTriple, + const llvm::opt::ArgList &Args, + StringRef CandidateTriple, + bool NeedsBiarchSuffix = false); + }; + +protected: + GCCInstallationDetector GCCInstallation; + CudaInstallationDetector CudaInstallation; + +public: + Generic_GCC(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + ~Generic_GCC() override; + + void printVerboseInfo(raw_ostream &OS) const override; + + bool IsUnwindTablesDefault(const llvm::opt::ArgList &Args) const override; + bool isPICDefault() const override; + bool isPIEDefault() const override; + bool isPICDefaultForced() const override; + bool IsIntegratedAssemblerDefault() const override; + llvm::opt::DerivedArgList * + TranslateArgs(const llvm::opt::DerivedArgList &Args, StringRef BoundArch, + Action::OffloadKind DeviceOffloadKind) const override; + +protected: + Tool *getTool(Action::ActionClass AC) const override; + Tool *buildAssembler() const override; + Tool *buildLinker() const override; + + /// \name ToolChain Implementation Helper Functions + /// @{ + + /// \brief Check whether the target triple's architecture is 64-bits. + bool isTarget64Bit() const { return getTriple().isArch64Bit(); } + + /// \brief Check whether the target triple's architecture is 32-bits. + bool isTarget32Bit() const { return getTriple().isArch32Bit(); } + + // FIXME: This should be final, but the Solaris tool chain does weird + // things we can't easily represent. + void AddClangCXXStdlibIncludeArgs( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + + virtual std::string findLibCxxIncludePath() const; + virtual void + addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const; + + bool addLibStdCXXIncludePaths(Twine Base, Twine Suffix, StringRef GCCTriple, + StringRef GCCMultiarchTriple, + StringRef TargetMultiarchTriple, + Twine IncludeSuffix, + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const; + + /// @} + +private: + mutable std::unique_ptr<tools::gcc::Preprocessor> Preprocess; + mutable std::unique_ptr<tools::gcc::Compiler> Compile; +}; + +class LLVM_LIBRARY_VISIBILITY Generic_ELF : public Generic_GCC { + virtual void anchor(); + +public: + Generic_ELF(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args) + : Generic_GCC(D, Triple, Args) {} + + void addClangTargetOptions(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args, + Action::OffloadKind DeviceOffloadKind) const override; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_GNU_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Haiku.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Haiku.cpp new file mode 100644 index 0000000..284d269 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Haiku.cpp @@ -0,0 +1,33 @@ +//===--- Haiku.cpp - Haiku ToolChain Implementations ------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "Haiku.h" +#include "CommonArgs.h" + +using namespace clang::driver; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +/// Haiku - Haiku tool chain which can call as(1) and ld(1) directly. + +Haiku::Haiku(const Driver &D, const llvm::Triple& Triple, const ArgList &Args) + : Generic_ELF(D, Triple, Args) { + +} + +std::string Haiku::findLibCxxIncludePath() const { + return getDriver().SysRoot + "/system/develop/headers/c++/v1"; +} + +void Haiku::addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const { + addLibStdCXXIncludePaths(getDriver().SysRoot, "/system/develop/headers/c++", + getTriple().str(), "", "", "", DriverArgs, CC1Args); +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Haiku.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Haiku.h new file mode 100644 index 0000000..8b5b48e --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Haiku.h @@ -0,0 +1,40 @@ +//===--- Haiku.h - Haiku ToolChain Implementations --------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_HAIKU_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_HAIKU_H + +#include "Gnu.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY Haiku : public Generic_ELF { +public: + Haiku(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + + bool isPIEDefault() const override { + return getTriple().getArch() == llvm::Triple::x86_64; + } + + std::string findLibCxxIncludePath() const override; + void addLibStdCxxIncludePaths( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_HAIKU_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Hexagon.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Hexagon.cpp new file mode 100644 index 0000000..9bf1590 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Hexagon.cpp @@ -0,0 +1,492 @@ +//===--- Hexagon.cpp - Hexagon ToolChain Implementations --------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "Hexagon.h" +#include "InputInfo.h" +#include "CommonArgs.h" +#include "clang/Basic/VirtualFileSystem.h" +#include "clang/Config/config.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Options.h" +#include "llvm/ADT/StringExtras.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Support/FileSystem.h" +#include "llvm/Support/Path.h" + +using namespace clang::driver; +using namespace clang::driver::tools; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +// Hexagon tools start. +void hexagon::Assembler::RenderExtraToolArgs(const JobAction &JA, + ArgStringList &CmdArgs) const { +} + +void hexagon::Assembler::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + claimNoWarnArgs(Args); + + auto &HTC = static_cast<const toolchains::HexagonToolChain&>(getToolChain()); + const Driver &D = HTC.getDriver(); + ArgStringList CmdArgs; + + std::string MArchString = "-march=hexagon"; + CmdArgs.push_back(Args.MakeArgString(MArchString)); + + RenderExtraToolArgs(JA, CmdArgs); + + std::string AsName = "hexagon-llvm-mc"; + std::string MCpuString = "-mcpu=hexagon" + + toolchains::HexagonToolChain::GetTargetCPUVersion(Args).str(); + CmdArgs.push_back("-filetype=obj"); + CmdArgs.push_back(Args.MakeArgString(MCpuString)); + + if (Output.isFilename()) { + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + } else { + assert(Output.isNothing() && "Unexpected output"); + CmdArgs.push_back("-fsyntax-only"); + } + + if (auto G = toolchains::HexagonToolChain::getSmallDataThreshold(Args)) { + std::string N = llvm::utostr(G.getValue()); + CmdArgs.push_back(Args.MakeArgString(std::string("-gpsize=") + N)); + } + + Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); + + // Only pass -x if gcc will understand it; otherwise hope gcc + // understands the suffix correctly. The main use case this would go + // wrong in is for linker inputs if they happened to have an odd + // suffix; really the only way to get this to happen is a command + // like '-x foobar a.c' which will treat a.c like a linker input. + // + // FIXME: For the linker case specifically, can we safely convert + // inputs into '-Wl,' options? + for (const auto &II : Inputs) { + // Don't try to pass LLVM or AST inputs to a generic gcc. + if (types::isLLVMIR(II.getType())) + D.Diag(clang::diag::err_drv_no_linker_llvm_support) + << HTC.getTripleString(); + else if (II.getType() == types::TY_AST) + D.Diag(clang::diag::err_drv_no_ast_support) + << HTC.getTripleString(); + else if (II.getType() == types::TY_ModuleFile) + D.Diag(diag::err_drv_no_module_support) + << HTC.getTripleString(); + + if (II.isFilename()) + CmdArgs.push_back(II.getFilename()); + else + // Don't render as input, we need gcc to do the translations. + // FIXME: What is this? + II.getInputArg().render(Args, CmdArgs); + } + + auto *Exec = Args.MakeArgString(HTC.GetProgramPath(AsName.c_str())); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +void hexagon::Linker::RenderExtraToolArgs(const JobAction &JA, + ArgStringList &CmdArgs) const { +} + +static void +constructHexagonLinkArgs(Compilation &C, const JobAction &JA, + const toolchains::HexagonToolChain &HTC, + const InputInfo &Output, const InputInfoList &Inputs, + const ArgList &Args, ArgStringList &CmdArgs, + const char *LinkingOutput) { + + const Driver &D = HTC.getDriver(); + + //---------------------------------------------------------------------------- + // + //---------------------------------------------------------------------------- + bool IsStatic = Args.hasArg(options::OPT_static); + bool IsShared = Args.hasArg(options::OPT_shared); + bool IsPIE = Args.hasArg(options::OPT_pie); + bool IncStdLib = !Args.hasArg(options::OPT_nostdlib); + bool IncStartFiles = !Args.hasArg(options::OPT_nostartfiles); + bool IncDefLibs = !Args.hasArg(options::OPT_nodefaultlibs); + bool UseG0 = false; + bool UseShared = IsShared && !IsStatic; + + //---------------------------------------------------------------------------- + // Silence warnings for various options + //---------------------------------------------------------------------------- + Args.ClaimAllArgs(options::OPT_g_Group); + Args.ClaimAllArgs(options::OPT_emit_llvm); + Args.ClaimAllArgs(options::OPT_w); // Other warning options are already + // handled somewhere else. + Args.ClaimAllArgs(options::OPT_static_libgcc); + + //---------------------------------------------------------------------------- + // + //---------------------------------------------------------------------------- + if (Args.hasArg(options::OPT_s)) + CmdArgs.push_back("-s"); + + if (Args.hasArg(options::OPT_r)) + CmdArgs.push_back("-r"); + + for (const auto &Opt : HTC.ExtraOpts) + CmdArgs.push_back(Opt.c_str()); + + CmdArgs.push_back("-march=hexagon"); + std::string CpuVer = + toolchains::HexagonToolChain::GetTargetCPUVersion(Args).str(); + std::string MCpuString = "-mcpu=hexagon" + CpuVer; + CmdArgs.push_back(Args.MakeArgString(MCpuString)); + + if (IsShared) { + CmdArgs.push_back("-shared"); + // The following should be the default, but doing as hexagon-gcc does. + CmdArgs.push_back("-call_shared"); + } + + if (IsStatic) + CmdArgs.push_back("-static"); + + if (IsPIE && !IsShared) + CmdArgs.push_back("-pie"); + + if (auto G = toolchains::HexagonToolChain::getSmallDataThreshold(Args)) { + std::string N = llvm::utostr(G.getValue()); + CmdArgs.push_back(Args.MakeArgString(std::string("-G") + N)); + UseG0 = G.getValue() == 0; + } + + //---------------------------------------------------------------------------- + // + //---------------------------------------------------------------------------- + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + //---------------------------------------------------------------------------- + // moslib + //---------------------------------------------------------------------------- + std::vector<std::string> OsLibs; + bool HasStandalone = false; + + for (const Arg *A : Args.filtered(options::OPT_moslib_EQ)) { + A->claim(); + OsLibs.emplace_back(A->getValue()); + HasStandalone = HasStandalone || (OsLibs.back() == "standalone"); + } + if (OsLibs.empty()) { + OsLibs.push_back("standalone"); + HasStandalone = true; + } + + //---------------------------------------------------------------------------- + // Start Files + //---------------------------------------------------------------------------- + const std::string MCpuSuffix = "/" + CpuVer; + const std::string MCpuG0Suffix = MCpuSuffix + "/G0"; + const std::string RootDir = + HTC.getHexagonTargetDir(D.InstalledDir, D.PrefixDirs) + "/"; + const std::string StartSubDir = + "hexagon/lib" + (UseG0 ? MCpuG0Suffix : MCpuSuffix); + + auto Find = [&HTC] (const std::string &RootDir, const std::string &SubDir, + const char *Name) -> std::string { + std::string RelName = SubDir + Name; + std::string P = HTC.GetFilePath(RelName.c_str()); + if (llvm::sys::fs::exists(P)) + return P; + return RootDir + RelName; + }; + + if (IncStdLib && IncStartFiles) { + if (!IsShared) { + if (HasStandalone) { + std::string Crt0SA = Find(RootDir, StartSubDir, "/crt0_standalone.o"); + CmdArgs.push_back(Args.MakeArgString(Crt0SA)); + } + std::string Crt0 = Find(RootDir, StartSubDir, "/crt0.o"); + CmdArgs.push_back(Args.MakeArgString(Crt0)); + } + std::string Init = UseShared + ? Find(RootDir, StartSubDir + "/pic", "/initS.o") + : Find(RootDir, StartSubDir, "/init.o"); + CmdArgs.push_back(Args.MakeArgString(Init)); + } + + //---------------------------------------------------------------------------- + // Library Search Paths + //---------------------------------------------------------------------------- + const ToolChain::path_list &LibPaths = HTC.getFilePaths(); + for (const auto &LibPath : LibPaths) + CmdArgs.push_back(Args.MakeArgString(StringRef("-L") + LibPath)); + + //---------------------------------------------------------------------------- + // + //---------------------------------------------------------------------------- + Args.AddAllArgs(CmdArgs, + {options::OPT_T_Group, options::OPT_e, options::OPT_s, + options::OPT_t, options::OPT_u_Group}); + + AddLinkerInputs(HTC, Inputs, Args, CmdArgs, JA); + + //---------------------------------------------------------------------------- + // Libraries + //---------------------------------------------------------------------------- + if (IncStdLib && IncDefLibs) { + if (D.CCCIsCXX()) { + HTC.AddCXXStdlibLibArgs(Args, CmdArgs); + CmdArgs.push_back("-lm"); + } + + CmdArgs.push_back("--start-group"); + + if (!IsShared) { + for (const std::string &Lib : OsLibs) + CmdArgs.push_back(Args.MakeArgString("-l" + Lib)); + CmdArgs.push_back("-lc"); + } + CmdArgs.push_back("-lgcc"); + + CmdArgs.push_back("--end-group"); + } + + //---------------------------------------------------------------------------- + // End files + //---------------------------------------------------------------------------- + if (IncStdLib && IncStartFiles) { + std::string Fini = UseShared + ? Find(RootDir, StartSubDir + "/pic", "/finiS.o") + : Find(RootDir, StartSubDir, "/fini.o"); + CmdArgs.push_back(Args.MakeArgString(Fini)); + } +} + +void hexagon::Linker::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + auto &HTC = static_cast<const toolchains::HexagonToolChain&>(getToolChain()); + + ArgStringList CmdArgs; + constructHexagonLinkArgs(C, JA, HTC, Output, Inputs, Args, CmdArgs, + LinkingOutput); + + std::string Linker = HTC.GetProgramPath("hexagon-link"); + C.addCommand(llvm::make_unique<Command>(JA, *this, Args.MakeArgString(Linker), + CmdArgs, Inputs)); +} +// Hexagon tools end. + +/// Hexagon Toolchain + +std::string HexagonToolChain::getHexagonTargetDir( + const std::string &InstalledDir, + const SmallVectorImpl<std::string> &PrefixDirs) const { + std::string InstallRelDir; + const Driver &D = getDriver(); + + // Locate the rest of the toolchain ... + for (auto &I : PrefixDirs) + if (D.getVFS().exists(I)) + return I; + + if (getVFS().exists(InstallRelDir = InstalledDir + "/../target")) + return InstallRelDir; + + return InstalledDir; +} + +Optional<unsigned> HexagonToolChain::getSmallDataThreshold( + const ArgList &Args) { + StringRef Gn = ""; + if (Arg *A = Args.getLastArg(options::OPT_G)) { + Gn = A->getValue(); + } else if (Args.getLastArg(options::OPT_shared, options::OPT_fpic, + options::OPT_fPIC)) { + Gn = "0"; + } + + unsigned G; + if (!Gn.getAsInteger(10, G)) + return G; + + return None; +} + +void HexagonToolChain::getHexagonLibraryPaths(const ArgList &Args, + ToolChain::path_list &LibPaths) const { + const Driver &D = getDriver(); + + //---------------------------------------------------------------------------- + // -L Args + //---------------------------------------------------------------------------- + for (Arg *A : Args.filtered(options::OPT_L)) + for (const char *Value : A->getValues()) + LibPaths.push_back(Value); + + //---------------------------------------------------------------------------- + // Other standard paths + //---------------------------------------------------------------------------- + std::vector<std::string> RootDirs; + std::copy(D.PrefixDirs.begin(), D.PrefixDirs.end(), + std::back_inserter(RootDirs)); + + std::string TargetDir = getHexagonTargetDir(D.getInstalledDir(), + D.PrefixDirs); + if (std::find(RootDirs.begin(), RootDirs.end(), TargetDir) == RootDirs.end()) + RootDirs.push_back(TargetDir); + + bool HasPIC = Args.hasArg(options::OPT_fpic, options::OPT_fPIC); + // Assume G0 with -shared. + bool HasG0 = Args.hasArg(options::OPT_shared); + if (auto G = getSmallDataThreshold(Args)) + HasG0 = G.getValue() == 0; + + const std::string CpuVer = GetTargetCPUVersion(Args).str(); + for (auto &Dir : RootDirs) { + std::string LibDir = Dir + "/hexagon/lib"; + std::string LibDirCpu = LibDir + '/' + CpuVer; + if (HasG0) { + if (HasPIC) + LibPaths.push_back(LibDirCpu + "/G0/pic"); + LibPaths.push_back(LibDirCpu + "/G0"); + } + LibPaths.push_back(LibDirCpu); + LibPaths.push_back(LibDir); + } +} + +HexagonToolChain::HexagonToolChain(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args) + : Linux(D, Triple, Args) { + const std::string TargetDir = getHexagonTargetDir(D.getInstalledDir(), + D.PrefixDirs); + + // Note: Generic_GCC::Generic_GCC adds InstalledDir and getDriver().Dir to + // program paths + const std::string BinDir(TargetDir + "/bin"); + if (D.getVFS().exists(BinDir)) + getProgramPaths().push_back(BinDir); + + ToolChain::path_list &LibPaths = getFilePaths(); + + // Remove paths added by Linux toolchain. Currently Hexagon_TC really targets + // 'elf' OS type, so the Linux paths are not appropriate. When we actually + // support 'linux' we'll need to fix this up + LibPaths.clear(); + getHexagonLibraryPaths(Args, LibPaths); +} + +HexagonToolChain::~HexagonToolChain() {} + +Tool *HexagonToolChain::buildAssembler() const { + return new tools::hexagon::Assembler(*this); +} + +Tool *HexagonToolChain::buildLinker() const { + return new tools::hexagon::Linker(*this); +} + +unsigned HexagonToolChain::getOptimizationLevel( + const llvm::opt::ArgList &DriverArgs) const { + // Copied in large part from lib/Frontend/CompilerInvocation.cpp. + Arg *A = DriverArgs.getLastArg(options::OPT_O_Group); + if (!A) + return 0; + + if (A->getOption().matches(options::OPT_O0)) + return 0; + if (A->getOption().matches(options::OPT_Ofast) || + A->getOption().matches(options::OPT_O4)) + return 3; + assert(A->getNumValues() != 0); + StringRef S(A->getValue()); + if (S == "s" || S == "z" || S.empty()) + return 2; + if (S == "g") + return 1; + + unsigned OptLevel; + if (S.getAsInteger(10, OptLevel)) + return 0; + return OptLevel; +} + +void HexagonToolChain::addClangTargetOptions(const ArgList &DriverArgs, + ArgStringList &CC1Args, + Action::OffloadKind) const { + if (DriverArgs.hasArg(options::OPT_ffp_contract)) + return; + unsigned OptLevel = getOptimizationLevel(DriverArgs); + if (OptLevel >= 3) + CC1Args.push_back("-ffp-contract=fast"); +} + +void HexagonToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + if (DriverArgs.hasArg(options::OPT_nostdinc) || + DriverArgs.hasArg(options::OPT_nostdlibinc)) + return; + + const Driver &D = getDriver(); + std::string TargetDir = getHexagonTargetDir(D.getInstalledDir(), + D.PrefixDirs); + addExternCSystemInclude(DriverArgs, CC1Args, TargetDir + "/hexagon/include"); +} + + +void HexagonToolChain::addLibStdCxxIncludePaths( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const { + const Driver &D = getDriver(); + std::string TargetDir = getHexagonTargetDir(D.InstalledDir, D.PrefixDirs); + addLibStdCXXIncludePaths(TargetDir, "/hexagon/include/c++", "", "", "", "", + DriverArgs, CC1Args); +} + +ToolChain::CXXStdlibType +HexagonToolChain::GetCXXStdlibType(const ArgList &Args) const { + Arg *A = Args.getLastArg(options::OPT_stdlib_EQ); + if (!A) + return ToolChain::CST_Libstdcxx; + + StringRef Value = A->getValue(); + if (Value != "libstdc++") + getDriver().Diag(diag::err_drv_invalid_stdlib_name) << A->getAsString(Args); + + return ToolChain::CST_Libstdcxx; +} + +// +// Returns the default CPU for Hexagon. This is the default compilation target +// if no Hexagon processor is selected at the command-line. +// +const StringRef HexagonToolChain::GetDefaultCPU() { + return "hexagonv60"; +} + +const StringRef HexagonToolChain::GetTargetCPUVersion(const ArgList &Args) { + Arg *CpuArg = nullptr; + if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ, options::OPT_march_EQ)) + CpuArg = A; + + StringRef CPU = CpuArg ? CpuArg->getValue() : GetDefaultCPU(); + if (CPU.startswith("hexagon")) + return CPU.substr(sizeof("hexagon") - 1); + return CPU; +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Hexagon.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Hexagon.h new file mode 100644 index 0000000..7f9a6b2 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Hexagon.h @@ -0,0 +1,104 @@ +//===--- Hexagon.h - Hexagon ToolChain Implementations ----------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_HEXAGON_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_HEXAGON_H + +#include "Linux.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace tools { +namespace hexagon { +// For Hexagon, we do not need to instantiate tools for PreProcess, PreCompile +// and Compile. +// We simply use "clang -cc1" for those actions. +class LLVM_LIBRARY_VISIBILITY Assembler : public GnuTool { +public: + Assembler(const ToolChain &TC) + : GnuTool("hexagon::Assembler", "hexagon-as", TC) {} + + bool hasIntegratedCPP() const override { return false; } + + void RenderExtraToolArgs(const JobAction &JA, + llvm::opt::ArgStringList &CmdArgs) const; + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +class LLVM_LIBRARY_VISIBILITY Linker : public GnuTool { +public: + Linker(const ToolChain &TC) : GnuTool("hexagon::Linker", "hexagon-ld", TC) {} + + bool hasIntegratedCPP() const override { return false; } + bool isLinkJob() const override { return true; } + + virtual void RenderExtraToolArgs(const JobAction &JA, + llvm::opt::ArgStringList &CmdArgs) const; + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; +} // end namespace hexagon. +} // end namespace tools + +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY HexagonToolChain : public Linux { +protected: + GCCVersion GCCLibAndIncVersion; + Tool *buildAssembler() const override; + Tool *buildLinker() const override; + + unsigned getOptimizationLevel(const llvm::opt::ArgList &DriverArgs) const; + +public: + HexagonToolChain(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + ~HexagonToolChain() override; + + void addClangTargetOptions(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args, + Action::OffloadKind DeviceOffloadKind) const override; + void + AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + void addLibStdCxxIncludePaths( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + CXXStdlibType GetCXXStdlibType(const llvm::opt::ArgList &Args) const override; + + StringRef GetGCCLibAndIncVersion() const { return GCCLibAndIncVersion.Text; } + bool IsIntegratedAssemblerDefault() const override { + return true; + } + + std::string getHexagonTargetDir( + const std::string &InstalledDir, + const SmallVectorImpl<std::string> &PrefixDirs) const; + void getHexagonLibraryPaths(const llvm::opt::ArgList &Args, + ToolChain::path_list &LibPaths) const; + + static const StringRef GetDefaultCPU(); + static const StringRef GetTargetCPUVersion(const llvm::opt::ArgList &Args); + + static Optional<unsigned> getSmallDataThreshold( + const llvm::opt::ArgList &Args); +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_HEXAGON_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Lanai.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Lanai.h new file mode 100644 index 0000000..4ce658d --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Lanai.h @@ -0,0 +1,39 @@ +//===--- Lanai.h - Lanai ToolChain Implementations --------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_LANAI_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_LANAI_H + +#include "Gnu.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY LanaiToolChain : public Generic_ELF { +public: + LanaiToolChain(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args) + : Generic_ELF(D, Triple, Args) {} + + // No support for finding a C++ standard library yet. + std::string findLibCxxIncludePath() const override { return ""; } + void addLibStdCxxIncludePaths( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override {} + + bool IsIntegratedAssemblerDefault() const override { return true; } +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_LANAI_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Linux.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Linux.cpp new file mode 100644 index 0000000..08a27fa --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Linux.cpp @@ -0,0 +1,860 @@ +//===--- Linux.h - Linux ToolChain Implementations --------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "Linux.h" +#include "Arch/ARM.h" +#include "Arch/Mips.h" +#include "Arch/PPC.h" +#include "CommonArgs.h" +#include "clang/Basic/VirtualFileSystem.h" +#include "clang/Config/config.h" +#include "clang/Driver/Distro.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/Options.h" +#include "clang/Driver/SanitizerArgs.h" +#include "llvm/Option/ArgList.h" +#include "llvm/ProfileData/InstrProf.h" +#include "llvm/Support/Path.h" +#include <system_error> + +using namespace clang::driver; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +using tools::addPathIfExists; + +/// \brief Get our best guess at the multiarch triple for a target. +/// +/// Debian-based systems are starting to use a multiarch setup where they use +/// a target-triple directory in the library and header search paths. +/// Unfortunately, this triple does not align with the vanilla target triple, +/// so we provide a rough mapping here. +static std::string getMultiarchTriple(const Driver &D, + const llvm::Triple &TargetTriple, + StringRef SysRoot) { + llvm::Triple::EnvironmentType TargetEnvironment = + TargetTriple.getEnvironment(); + + // For most architectures, just use whatever we have rather than trying to be + // clever. + switch (TargetTriple.getArch()) { + default: + break; + + // We use the existence of '/lib/<triple>' as a directory to detect some + // common linux triples that don't quite match the Clang triple for both + // 32-bit and 64-bit targets. Multiarch fixes its install triples to these + // regardless of what the actual target triple is. + case llvm::Triple::arm: + case llvm::Triple::thumb: + if (TargetEnvironment == llvm::Triple::GNUEABIHF) { + if (D.getVFS().exists(SysRoot + "/lib/arm-linux-gnueabihf")) + return "arm-linux-gnueabihf"; + } else { + if (D.getVFS().exists(SysRoot + "/lib/arm-linux-gnueabi")) + return "arm-linux-gnueabi"; + } + break; + case llvm::Triple::armeb: + case llvm::Triple::thumbeb: + if (TargetEnvironment == llvm::Triple::GNUEABIHF) { + if (D.getVFS().exists(SysRoot + "/lib/armeb-linux-gnueabihf")) + return "armeb-linux-gnueabihf"; + } else { + if (D.getVFS().exists(SysRoot + "/lib/armeb-linux-gnueabi")) + return "armeb-linux-gnueabi"; + } + break; + case llvm::Triple::x86: + if (D.getVFS().exists(SysRoot + "/lib/i386-linux-gnu")) + return "i386-linux-gnu"; + break; + case llvm::Triple::x86_64: + // We don't want this for x32, otherwise it will match x86_64 libs + if (TargetEnvironment != llvm::Triple::GNUX32 && + D.getVFS().exists(SysRoot + "/lib/x86_64-linux-gnu")) + return "x86_64-linux-gnu"; + break; + case llvm::Triple::aarch64: + if (D.getVFS().exists(SysRoot + "/lib/aarch64-linux-gnu")) + return "aarch64-linux-gnu"; + break; + case llvm::Triple::aarch64_be: + if (D.getVFS().exists(SysRoot + "/lib/aarch64_be-linux-gnu")) + return "aarch64_be-linux-gnu"; + break; + case llvm::Triple::mips: + if (D.getVFS().exists(SysRoot + "/lib/mips-linux-gnu")) + return "mips-linux-gnu"; + break; + case llvm::Triple::mipsel: + if (D.getVFS().exists(SysRoot + "/lib/mipsel-linux-gnu")) + return "mipsel-linux-gnu"; + break; + case llvm::Triple::mips64: + if (D.getVFS().exists(SysRoot + "/lib/mips64-linux-gnu")) + return "mips64-linux-gnu"; + if (D.getVFS().exists(SysRoot + "/lib/mips64-linux-gnuabi64")) + return "mips64-linux-gnuabi64"; + break; + case llvm::Triple::mips64el: + if (D.getVFS().exists(SysRoot + "/lib/mips64el-linux-gnu")) + return "mips64el-linux-gnu"; + if (D.getVFS().exists(SysRoot + "/lib/mips64el-linux-gnuabi64")) + return "mips64el-linux-gnuabi64"; + break; + case llvm::Triple::ppc: + if (D.getVFS().exists(SysRoot + "/lib/powerpc-linux-gnuspe")) + return "powerpc-linux-gnuspe"; + if (D.getVFS().exists(SysRoot + "/lib/powerpc-linux-gnu")) + return "powerpc-linux-gnu"; + break; + case llvm::Triple::ppc64: + if (D.getVFS().exists(SysRoot + "/lib/powerpc64-linux-gnu")) + return "powerpc64-linux-gnu"; + break; + case llvm::Triple::ppc64le: + if (D.getVFS().exists(SysRoot + "/lib/powerpc64le-linux-gnu")) + return "powerpc64le-linux-gnu"; + break; + case llvm::Triple::sparc: + if (D.getVFS().exists(SysRoot + "/lib/sparc-linux-gnu")) + return "sparc-linux-gnu"; + break; + case llvm::Triple::sparcv9: + if (D.getVFS().exists(SysRoot + "/lib/sparc64-linux-gnu")) + return "sparc64-linux-gnu"; + break; + case llvm::Triple::systemz: + if (D.getVFS().exists(SysRoot + "/lib/s390x-linux-gnu")) + return "s390x-linux-gnu"; + break; + } + return TargetTriple.str(); +} + +static StringRef getOSLibDir(const llvm::Triple &Triple, const ArgList &Args) { + if (tools::isMipsArch(Triple.getArch())) { + if (Triple.isAndroid()) { + StringRef CPUName; + StringRef ABIName; + tools::mips::getMipsCPUAndABI(Args, Triple, CPUName, ABIName); + if (CPUName == "mips32r6") + return "libr6"; + if (CPUName == "mips32r2") + return "libr2"; + } + // lib32 directory has a special meaning on MIPS targets. + // It contains N32 ABI binaries. Use this folder if produce + // code for N32 ABI only. + if (tools::mips::hasMipsAbiArg(Args, "n32")) + return "lib32"; + return Triple.isArch32Bit() ? "lib" : "lib64"; + } + + // It happens that only x86 and PPC use the 'lib32' variant of oslibdir, and + // using that variant while targeting other architectures causes problems + // because the libraries are laid out in shared system roots that can't cope + // with a 'lib32' library search path being considered. So we only enable + // them when we know we may need it. + // + // FIXME: This is a bit of a hack. We should really unify this code for + // reasoning about oslibdir spellings with the lib dir spellings in the + // GCCInstallationDetector, but that is a more significant refactoring. + if (Triple.getArch() == llvm::Triple::x86 || + Triple.getArch() == llvm::Triple::ppc) + return "lib32"; + + if (Triple.getArch() == llvm::Triple::x86_64 && + Triple.getEnvironment() == llvm::Triple::GNUX32) + return "libx32"; + + return Triple.isArch32Bit() ? "lib" : "lib64"; +} + +static void addMultilibsFilePaths(const Driver &D, const MultilibSet &Multilibs, + const Multilib &Multilib, + StringRef InstallPath, + ToolChain::path_list &Paths) { + if (const auto &PathsCallback = Multilibs.filePathsCallback()) + for (const auto &Path : PathsCallback(Multilib)) + addPathIfExists(D, InstallPath + Path, Paths); +} + +Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args) + : Generic_ELF(D, Triple, Args) { + GCCInstallation.init(Triple, Args); + Multilibs = GCCInstallation.getMultilibs(); + llvm::Triple::ArchType Arch = Triple.getArch(); + std::string SysRoot = computeSysRoot(); + + // Cross-compiling binutils and GCC installations (vanilla and openSUSE at + // least) put various tools in a triple-prefixed directory off of the parent + // of the GCC installation. We use the GCC triple here to ensure that we end + // up with tools that support the same amount of cross compiling as the + // detected GCC installation. For example, if we find a GCC installation + // targeting x86_64, but it is a bi-arch GCC installation, it can also be + // used to target i386. + // FIXME: This seems unlikely to be Linux-specific. + ToolChain::path_list &PPaths = getProgramPaths(); + PPaths.push_back(Twine(GCCInstallation.getParentLibPath() + "/../" + + GCCInstallation.getTriple().str() + "/bin") + .str()); + + Distro Distro(D.getVFS()); + + if (Distro.IsOpenSUSE() || Distro.IsUbuntu()) { + ExtraOpts.push_back("-z"); + ExtraOpts.push_back("relro"); + } + + if (Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb) + ExtraOpts.push_back("-X"); + + const bool IsAndroid = Triple.isAndroid(); + const bool IsMips = tools::isMipsArch(Arch); + const bool IsHexagon = Arch == llvm::Triple::hexagon; + + if (IsMips && !SysRoot.empty()) + ExtraOpts.push_back("--sysroot=" + SysRoot); + + // Do not use 'gnu' hash style for Mips targets because .gnu.hash + // and the MIPS ABI require .dynsym to be sorted in different ways. + // .gnu.hash needs symbols to be grouped by hash code whereas the MIPS + // ABI requires a mapping between the GOT and the symbol table. + // Android loader does not support .gnu.hash. + // Hexagon linker/loader does not support .gnu.hash + if (!IsMips && !IsAndroid && !IsHexagon) { + if (Distro.IsRedhat() || Distro.IsOpenSUSE() || + (Distro.IsUbuntu() && Distro >= Distro::UbuntuMaverick)) + ExtraOpts.push_back("--hash-style=gnu"); + + if (Distro.IsDebian() || Distro.IsOpenSUSE() || Distro == Distro::UbuntuLucid || + Distro == Distro::UbuntuJaunty || Distro == Distro::UbuntuKarmic) + ExtraOpts.push_back("--hash-style=both"); + } + + if (Distro.IsRedhat() && Distro != Distro::RHEL5 && Distro != Distro::RHEL6) + ExtraOpts.push_back("--no-add-needed"); + +#ifdef ENABLE_LINKER_BUILD_ID + ExtraOpts.push_back("--build-id"); +#endif + + if (Distro.IsOpenSUSE()) + ExtraOpts.push_back("--enable-new-dtags"); + + // The selection of paths to try here is designed to match the patterns which + // the GCC driver itself uses, as this is part of the GCC-compatible driver. + // This was determined by running GCC in a fake filesystem, creating all + // possible permutations of these directories, and seeing which ones it added + // to the link paths. + path_list &Paths = getFilePaths(); + + const std::string OSLibDir = getOSLibDir(Triple, Args); + const std::string MultiarchTriple = getMultiarchTriple(D, Triple, SysRoot); + + // Add the multilib suffixed paths where they are available. + if (GCCInstallation.isValid()) { + const llvm::Triple &GCCTriple = GCCInstallation.getTriple(); + const std::string &LibPath = GCCInstallation.getParentLibPath(); + const Multilib &Multilib = GCCInstallation.getMultilib(); + const MultilibSet &Multilibs = GCCInstallation.getMultilibs(); + + // Add toolchain / multilib specific file paths. + addMultilibsFilePaths(D, Multilibs, Multilib, + GCCInstallation.getInstallPath(), Paths); + + // Sourcery CodeBench MIPS toolchain holds some libraries under + // a biarch-like suffix of the GCC installation. + addPathIfExists(D, GCCInstallation.getInstallPath() + Multilib.gccSuffix(), + Paths); + + // GCC cross compiling toolchains will install target libraries which ship + // as part of the toolchain under <prefix>/<triple>/<libdir> rather than as + // any part of the GCC installation in + // <prefix>/<libdir>/gcc/<triple>/<version>. This decision is somewhat + // debatable, but is the reality today. We need to search this tree even + // when we have a sysroot somewhere else. It is the responsibility of + // whomever is doing the cross build targeting a sysroot using a GCC + // installation that is *not* within the system root to ensure two things: + // + // 1) Any DSOs that are linked in from this tree or from the install path + // above must be present on the system root and found via an + // appropriate rpath. + // 2) There must not be libraries installed into + // <prefix>/<triple>/<libdir> unless they should be preferred over + // those within the system root. + // + // Note that this matches the GCC behavior. See the below comment for where + // Clang diverges from GCC's behavior. + addPathIfExists(D, LibPath + "/../" + GCCTriple.str() + "/lib/../" + + OSLibDir + Multilib.osSuffix(), + Paths); + + // If the GCC installation we found is inside of the sysroot, we want to + // prefer libraries installed in the parent prefix of the GCC installation. + // It is important to *not* use these paths when the GCC installation is + // outside of the system root as that can pick up unintended libraries. + // This usually happens when there is an external cross compiler on the + // host system, and a more minimal sysroot available that is the target of + // the cross. Note that GCC does include some of these directories in some + // configurations but this seems somewhere between questionable and simply + // a bug. + if (StringRef(LibPath).startswith(SysRoot)) { + addPathIfExists(D, LibPath + "/" + MultiarchTriple, Paths); + addPathIfExists(D, LibPath + "/../" + OSLibDir, Paths); + } + } + + // Similar to the logic for GCC above, if we currently running Clang inside + // of the requested system root, add its parent library paths to + // those searched. + // FIXME: It's not clear whether we should use the driver's installed + // directory ('Dir' below) or the ResourceDir. + if (StringRef(D.Dir).startswith(SysRoot)) { + addPathIfExists(D, D.Dir + "/../lib/" + MultiarchTriple, Paths); + addPathIfExists(D, D.Dir + "/../" + OSLibDir, Paths); + } + + addPathIfExists(D, SysRoot + "/lib/" + MultiarchTriple, Paths); + addPathIfExists(D, SysRoot + "/lib/../" + OSLibDir, Paths); + addPathIfExists(D, SysRoot + "/usr/lib/" + MultiarchTriple, Paths); + addPathIfExists(D, SysRoot + "/usr/lib/../" + OSLibDir, Paths); + + // Try walking via the GCC triple path in case of biarch or multiarch GCC + // installations with strange symlinks. + if (GCCInstallation.isValid()) { + addPathIfExists(D, + SysRoot + "/usr/lib/" + GCCInstallation.getTriple().str() + + "/../../" + OSLibDir, + Paths); + + // Add the 'other' biarch variant path + Multilib BiarchSibling; + if (GCCInstallation.getBiarchSibling(BiarchSibling)) { + addPathIfExists(D, GCCInstallation.getInstallPath() + + BiarchSibling.gccSuffix(), + Paths); + } + + // See comments above on the multilib variant for details of why this is + // included even from outside the sysroot. + const std::string &LibPath = GCCInstallation.getParentLibPath(); + const llvm::Triple &GCCTriple = GCCInstallation.getTriple(); + const Multilib &Multilib = GCCInstallation.getMultilib(); + addPathIfExists(D, LibPath + "/../" + GCCTriple.str() + "/lib" + + Multilib.osSuffix(), + Paths); + + // See comments above on the multilib variant for details of why this is + // only included from within the sysroot. + if (StringRef(LibPath).startswith(SysRoot)) + addPathIfExists(D, LibPath, Paths); + } + + // Similar to the logic for GCC above, if we are currently running Clang + // inside of the requested system root, add its parent library path to those + // searched. + // FIXME: It's not clear whether we should use the driver's installed + // directory ('Dir' below) or the ResourceDir. + if (StringRef(D.Dir).startswith(SysRoot)) + addPathIfExists(D, D.Dir + "/../lib", Paths); + + addPathIfExists(D, SysRoot + "/lib", Paths); + addPathIfExists(D, SysRoot + "/usr/lib", Paths); +} + +bool Linux::HasNativeLLVMSupport() const { return true; } + +Tool *Linux::buildLinker() const { return new tools::gnutools::Linker(*this); } + +Tool *Linux::buildAssembler() const { + return new tools::gnutools::Assembler(*this); +} + +std::string Linux::computeSysRoot() const { + if (!getDriver().SysRoot.empty()) + return getDriver().SysRoot; + + if (!GCCInstallation.isValid() || !tools::isMipsArch(getTriple().getArch())) + return std::string(); + + // Standalone MIPS toolchains use different names for sysroot folder + // and put it into different places. Here we try to check some known + // variants. + + const StringRef InstallDir = GCCInstallation.getInstallPath(); + const StringRef TripleStr = GCCInstallation.getTriple().str(); + const Multilib &Multilib = GCCInstallation.getMultilib(); + + std::string Path = + (InstallDir + "/../../../../" + TripleStr + "/libc" + Multilib.osSuffix()) + .str(); + + if (getVFS().exists(Path)) + return Path; + + Path = (InstallDir + "/../../../../sysroot" + Multilib.osSuffix()).str(); + + if (getVFS().exists(Path)) + return Path; + + return std::string(); +} + +std::string Linux::getDynamicLinker(const ArgList &Args) const { + const llvm::Triple::ArchType Arch = getArch(); + const llvm::Triple &Triple = getTriple(); + + const Distro Distro(getDriver().getVFS()); + + if (Triple.isAndroid()) + return Triple.isArch64Bit() ? "/system/bin/linker64" : "/system/bin/linker"; + + if (Triple.isMusl()) { + std::string ArchName; + bool IsArm = false; + + switch (Arch) { + case llvm::Triple::arm: + case llvm::Triple::thumb: + ArchName = "arm"; + IsArm = true; + break; + case llvm::Triple::armeb: + case llvm::Triple::thumbeb: + ArchName = "armeb"; + IsArm = true; + break; + default: + ArchName = Triple.getArchName().str(); + } + if (IsArm && + (Triple.getEnvironment() == llvm::Triple::MuslEABIHF || + tools::arm::getARMFloatABI(*this, Args) == tools::arm::FloatABI::Hard)) + ArchName += "hf"; + + return "/lib/ld-musl-" + ArchName + ".so.1"; + } + + std::string LibDir; + std::string Loader; + + switch (Arch) { + default: + llvm_unreachable("unsupported architecture"); + + case llvm::Triple::aarch64: + LibDir = "lib"; + Loader = "ld-linux-aarch64.so.1"; + break; + case llvm::Triple::aarch64_be: + LibDir = "lib"; + Loader = "ld-linux-aarch64_be.so.1"; + break; + case llvm::Triple::arm: + case llvm::Triple::thumb: + case llvm::Triple::armeb: + case llvm::Triple::thumbeb: { + const bool HF = + Triple.getEnvironment() == llvm::Triple::GNUEABIHF || + tools::arm::getARMFloatABI(*this, Args) == tools::arm::FloatABI::Hard; + + LibDir = "lib"; + Loader = HF ? "ld-linux-armhf.so.3" : "ld-linux.so.3"; + break; + } + case llvm::Triple::mips: + case llvm::Triple::mipsel: + case llvm::Triple::mips64: + case llvm::Triple::mips64el: { + bool LE = (Triple.getArch() == llvm::Triple::mipsel) || + (Triple.getArch() == llvm::Triple::mips64el); + bool IsNaN2008 = tools::mips::isNaN2008(Args, Triple); + + LibDir = "lib" + tools::mips::getMipsABILibSuffix(Args, Triple); + + if (tools::mips::isUCLibc(Args)) + Loader = IsNaN2008 ? "ld-uClibc-mipsn8.so.0" : "ld-uClibc.so.0"; + else if (!Triple.hasEnvironment() && + Triple.getVendor() == llvm::Triple::VendorType::MipsTechnologies) + Loader = LE ? "ld-musl-mipsel.so.1" : "ld-musl-mips.so.1"; + else + Loader = IsNaN2008 ? "ld-linux-mipsn8.so.1" : "ld.so.1"; + + break; + } + case llvm::Triple::ppc: + LibDir = "lib"; + Loader = "ld.so.1"; + break; + case llvm::Triple::ppc64: + LibDir = "lib64"; + Loader = + (tools::ppc::hasPPCAbiArg(Args, "elfv2")) ? "ld64.so.2" : "ld64.so.1"; + break; + case llvm::Triple::ppc64le: + LibDir = "lib64"; + Loader = + (tools::ppc::hasPPCAbiArg(Args, "elfv1")) ? "ld64.so.1" : "ld64.so.2"; + break; + case llvm::Triple::sparc: + case llvm::Triple::sparcel: + LibDir = "lib"; + Loader = "ld-linux.so.2"; + break; + case llvm::Triple::sparcv9: + LibDir = "lib64"; + Loader = "ld-linux.so.2"; + break; + case llvm::Triple::systemz: + LibDir = "lib"; + Loader = "ld64.so.1"; + break; + case llvm::Triple::x86: + LibDir = "lib"; + Loader = "ld-linux.so.2"; + break; + case llvm::Triple::x86_64: { + bool X32 = Triple.getEnvironment() == llvm::Triple::GNUX32; + + LibDir = X32 ? "libx32" : "lib64"; + Loader = X32 ? "ld-linux-x32.so.2" : "ld-linux-x86-64.so.2"; + break; + } + } + + if (Distro == Distro::Exherbo && (Triple.getVendor() == llvm::Triple::UnknownVendor || + Triple.getVendor() == llvm::Triple::PC)) + return "/usr/" + Triple.str() + "/lib/" + Loader; + return "/" + LibDir + "/" + Loader; +} + +void Linux::AddClangSystemIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + const Driver &D = getDriver(); + std::string SysRoot = computeSysRoot(); + + if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc)) + return; + + if (!DriverArgs.hasArg(options::OPT_nostdlibinc)) + addSystemInclude(DriverArgs, CC1Args, SysRoot + "/usr/local/include"); + + if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) { + SmallString<128> P(D.ResourceDir); + llvm::sys::path::append(P, "include"); + addSystemInclude(DriverArgs, CC1Args, P); + } + + if (DriverArgs.hasArg(options::OPT_nostdlibinc)) + return; + + // Check for configure-time C include directories. + StringRef CIncludeDirs(C_INCLUDE_DIRS); + if (CIncludeDirs != "") { + SmallVector<StringRef, 5> dirs; + CIncludeDirs.split(dirs, ":"); + for (StringRef dir : dirs) { + StringRef Prefix = + llvm::sys::path::is_absolute(dir) ? StringRef(SysRoot) : ""; + addExternCSystemInclude(DriverArgs, CC1Args, Prefix + dir); + } + return; + } + + // Lacking those, try to detect the correct set of system includes for the + // target triple. + + // Add include directories specific to the selected multilib set and multilib. + if (GCCInstallation.isValid()) { + const auto &Callback = Multilibs.includeDirsCallback(); + if (Callback) { + for (const auto &Path : Callback(GCCInstallation.getMultilib())) + addExternCSystemIncludeIfExists( + DriverArgs, CC1Args, GCCInstallation.getInstallPath() + Path); + } + } + + // Implement generic Debian multiarch support. + const StringRef X86_64MultiarchIncludeDirs[] = { + "/usr/include/x86_64-linux-gnu", + + // FIXME: These are older forms of multiarch. It's not clear that they're + // in use in any released version of Debian, so we should consider + // removing them. + "/usr/include/i686-linux-gnu/64", "/usr/include/i486-linux-gnu/64"}; + const StringRef X86MultiarchIncludeDirs[] = { + "/usr/include/i386-linux-gnu", + + // FIXME: These are older forms of multiarch. It's not clear that they're + // in use in any released version of Debian, so we should consider + // removing them. + "/usr/include/x86_64-linux-gnu/32", "/usr/include/i686-linux-gnu", + "/usr/include/i486-linux-gnu"}; + const StringRef AArch64MultiarchIncludeDirs[] = { + "/usr/include/aarch64-linux-gnu"}; + const StringRef ARMMultiarchIncludeDirs[] = { + "/usr/include/arm-linux-gnueabi"}; + const StringRef ARMHFMultiarchIncludeDirs[] = { + "/usr/include/arm-linux-gnueabihf"}; + const StringRef ARMEBMultiarchIncludeDirs[] = { + "/usr/include/armeb-linux-gnueabi"}; + const StringRef ARMEBHFMultiarchIncludeDirs[] = { + "/usr/include/armeb-linux-gnueabihf"}; + const StringRef MIPSMultiarchIncludeDirs[] = {"/usr/include/mips-linux-gnu"}; + const StringRef MIPSELMultiarchIncludeDirs[] = { + "/usr/include/mipsel-linux-gnu"}; + const StringRef MIPS64MultiarchIncludeDirs[] = { + "/usr/include/mips64-linux-gnu", "/usr/include/mips64-linux-gnuabi64"}; + const StringRef MIPS64ELMultiarchIncludeDirs[] = { + "/usr/include/mips64el-linux-gnu", + "/usr/include/mips64el-linux-gnuabi64"}; + const StringRef PPCMultiarchIncludeDirs[] = { + "/usr/include/powerpc-linux-gnu"}; + const StringRef PPC64MultiarchIncludeDirs[] = { + "/usr/include/powerpc64-linux-gnu"}; + const StringRef PPC64LEMultiarchIncludeDirs[] = { + "/usr/include/powerpc64le-linux-gnu"}; + const StringRef SparcMultiarchIncludeDirs[] = { + "/usr/include/sparc-linux-gnu"}; + const StringRef Sparc64MultiarchIncludeDirs[] = { + "/usr/include/sparc64-linux-gnu"}; + const StringRef SYSTEMZMultiarchIncludeDirs[] = { + "/usr/include/s390x-linux-gnu"}; + ArrayRef<StringRef> MultiarchIncludeDirs; + switch (getTriple().getArch()) { + case llvm::Triple::x86_64: + MultiarchIncludeDirs = X86_64MultiarchIncludeDirs; + break; + case llvm::Triple::x86: + MultiarchIncludeDirs = X86MultiarchIncludeDirs; + break; + case llvm::Triple::aarch64: + case llvm::Triple::aarch64_be: + MultiarchIncludeDirs = AArch64MultiarchIncludeDirs; + break; + case llvm::Triple::arm: + case llvm::Triple::thumb: + if (getTriple().getEnvironment() == llvm::Triple::GNUEABIHF) + MultiarchIncludeDirs = ARMHFMultiarchIncludeDirs; + else + MultiarchIncludeDirs = ARMMultiarchIncludeDirs; + break; + case llvm::Triple::armeb: + case llvm::Triple::thumbeb: + if (getTriple().getEnvironment() == llvm::Triple::GNUEABIHF) + MultiarchIncludeDirs = ARMEBHFMultiarchIncludeDirs; + else + MultiarchIncludeDirs = ARMEBMultiarchIncludeDirs; + break; + case llvm::Triple::mips: + MultiarchIncludeDirs = MIPSMultiarchIncludeDirs; + break; + case llvm::Triple::mipsel: + MultiarchIncludeDirs = MIPSELMultiarchIncludeDirs; + break; + case llvm::Triple::mips64: + MultiarchIncludeDirs = MIPS64MultiarchIncludeDirs; + break; + case llvm::Triple::mips64el: + MultiarchIncludeDirs = MIPS64ELMultiarchIncludeDirs; + break; + case llvm::Triple::ppc: + MultiarchIncludeDirs = PPCMultiarchIncludeDirs; + break; + case llvm::Triple::ppc64: + MultiarchIncludeDirs = PPC64MultiarchIncludeDirs; + break; + case llvm::Triple::ppc64le: + MultiarchIncludeDirs = PPC64LEMultiarchIncludeDirs; + break; + case llvm::Triple::sparc: + MultiarchIncludeDirs = SparcMultiarchIncludeDirs; + break; + case llvm::Triple::sparcv9: + MultiarchIncludeDirs = Sparc64MultiarchIncludeDirs; + break; + case llvm::Triple::systemz: + MultiarchIncludeDirs = SYSTEMZMultiarchIncludeDirs; + break; + default: + break; + } + for (StringRef Dir : MultiarchIncludeDirs) { + if (D.getVFS().exists(SysRoot + Dir)) { + addExternCSystemInclude(DriverArgs, CC1Args, SysRoot + Dir); + break; + } + } + + if (getTriple().getOS() == llvm::Triple::RTEMS) + return; + + // Add an include of '/include' directly. This isn't provided by default by + // system GCCs, but is often used with cross-compiling GCCs, and harmless to + // add even when Clang is acting as-if it were a system compiler. + addExternCSystemInclude(DriverArgs, CC1Args, SysRoot + "/include"); + + addExternCSystemInclude(DriverArgs, CC1Args, SysRoot + "/usr/include"); +} + +static std::string DetectLibcxxIncludePath(StringRef base) { + std::error_code EC; + int MaxVersion = 0; + std::string MaxVersionString = ""; + for (llvm::sys::fs::directory_iterator LI(base, EC), LE; !EC && LI != LE; + LI = LI.increment(EC)) { + StringRef VersionText = llvm::sys::path::filename(LI->path()); + int Version; + if (VersionText[0] == 'v' && + !VersionText.slice(1, StringRef::npos).getAsInteger(10, Version)) { + if (Version > MaxVersion) { + MaxVersion = Version; + MaxVersionString = VersionText; + } + } + } + return MaxVersion ? (base + "/" + MaxVersionString).str() : ""; +} + +std::string Linux::findLibCxxIncludePath() const { + const std::string LibCXXIncludePathCandidates[] = { + DetectLibcxxIncludePath(getDriver().Dir + "/../include/c++"), + // If this is a development, non-installed, clang, libcxx will + // not be found at ../include/c++ but it likely to be found at + // one of the following two locations: + DetectLibcxxIncludePath(getDriver().SysRoot + "/usr/local/include/c++"), + DetectLibcxxIncludePath(getDriver().SysRoot + "/usr/include/c++") }; + for (const auto &IncludePath : LibCXXIncludePathCandidates) { + if (IncludePath.empty() || !getVFS().exists(IncludePath)) + continue; + // Use the first candidate that exists. + return IncludePath; + } + return ""; +} + +void Linux::addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const { + // We need a detected GCC installation on Linux to provide libstdc++'s + // headers. + if (!GCCInstallation.isValid()) + return; + + // By default, look for the C++ headers in an include directory adjacent to + // the lib directory of the GCC installation. Note that this is expect to be + // equivalent to '/usr/include/c++/X.Y' in almost all cases. + StringRef LibDir = GCCInstallation.getParentLibPath(); + StringRef InstallDir = GCCInstallation.getInstallPath(); + StringRef TripleStr = GCCInstallation.getTriple().str(); + const Multilib &Multilib = GCCInstallation.getMultilib(); + const std::string GCCMultiarchTriple = getMultiarchTriple( + getDriver(), GCCInstallation.getTriple(), getDriver().SysRoot); + const std::string TargetMultiarchTriple = + getMultiarchTriple(getDriver(), getTriple(), getDriver().SysRoot); + const GCCVersion &Version = GCCInstallation.getVersion(); + + // The primary search for libstdc++ supports multiarch variants. + if (addLibStdCXXIncludePaths(LibDir.str() + "/../include", + "/c++/" + Version.Text, TripleStr, + GCCMultiarchTriple, TargetMultiarchTriple, + Multilib.includeSuffix(), DriverArgs, CC1Args)) + return; + + // Otherwise, fall back on a bunch of options which don't use multiarch + // layouts for simplicity. + const std::string LibStdCXXIncludePathCandidates[] = { + // Gentoo is weird and places its headers inside the GCC install, + // so if the first attempt to find the headers fails, try these patterns. + InstallDir.str() + "/include/g++-v" + Version.Text, + InstallDir.str() + "/include/g++-v" + Version.MajorStr + "." + + Version.MinorStr, + InstallDir.str() + "/include/g++-v" + Version.MajorStr, + // Android standalone toolchain has C++ headers in yet another place. + LibDir.str() + "/../" + TripleStr.str() + "/include/c++/" + Version.Text, + // Freescale SDK C++ headers are directly in <sysroot>/usr/include/c++, + // without a subdirectory corresponding to the gcc version. + LibDir.str() + "/../include/c++", + }; + + for (const auto &IncludePath : LibStdCXXIncludePathCandidates) { + if (addLibStdCXXIncludePaths(IncludePath, /*Suffix*/ "", TripleStr, + /*GCCMultiarchTriple*/ "", + /*TargetMultiarchTriple*/ "", + Multilib.includeSuffix(), DriverArgs, CC1Args)) + break; + } +} + +void Linux::AddCudaIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + CudaInstallation.AddCudaIncludeArgs(DriverArgs, CC1Args); +} + +void Linux::AddIAMCUIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + if (GCCInstallation.isValid()) { + CC1Args.push_back("-isystem"); + CC1Args.push_back(DriverArgs.MakeArgString( + GCCInstallation.getParentLibPath() + "/../" + + GCCInstallation.getTriple().str() + "/include")); + } +} + +bool Linux::isPIEDefault() const { return getSanitizerArgs().requiresPIE(); } + +SanitizerMask Linux::getSupportedSanitizers() const { + const bool IsX86 = getTriple().getArch() == llvm::Triple::x86; + const bool IsX86_64 = getTriple().getArch() == llvm::Triple::x86_64; + const bool IsMIPS64 = getTriple().getArch() == llvm::Triple::mips64 || + getTriple().getArch() == llvm::Triple::mips64el; + const bool IsPowerPC64 = getTriple().getArch() == llvm::Triple::ppc64 || + getTriple().getArch() == llvm::Triple::ppc64le; + const bool IsAArch64 = getTriple().getArch() == llvm::Triple::aarch64 || + getTriple().getArch() == llvm::Triple::aarch64_be; + const bool IsArmArch = getTriple().getArch() == llvm::Triple::arm || + getTriple().getArch() == llvm::Triple::thumb || + getTriple().getArch() == llvm::Triple::armeb || + getTriple().getArch() == llvm::Triple::thumbeb; + SanitizerMask Res = ToolChain::getSupportedSanitizers(); + Res |= SanitizerKind::Address; + Res |= SanitizerKind::Fuzzer; + Res |= SanitizerKind::KernelAddress; + Res |= SanitizerKind::Vptr; + Res |= SanitizerKind::SafeStack; + if (IsX86_64 || IsMIPS64 || IsAArch64) + Res |= SanitizerKind::DataFlow; + if (IsX86_64 || IsMIPS64 || IsAArch64 || IsX86 || IsArmArch) + Res |= SanitizerKind::Leak; + if (IsX86_64 || IsMIPS64 || IsAArch64 || IsPowerPC64) + Res |= SanitizerKind::Thread; + if (IsX86_64 || IsMIPS64 || IsPowerPC64 || IsAArch64) + Res |= SanitizerKind::Memory; + if (IsX86_64 || IsMIPS64) + Res |= SanitizerKind::Efficiency; + if (IsX86 || IsX86_64) { + Res |= SanitizerKind::Function; + } + return Res; +} + +void Linux::addProfileRTLibs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const { + if (!needsProfileRT(Args)) return; + + // Add linker option -u__llvm_runtime_variable to cause runtime + // initialization module to be linked in. + if (!Args.hasArg(options::OPT_coverage)) + CmdArgs.push_back(Args.MakeArgString( + Twine("-u", llvm::getInstrProfRuntimeHookVarName()))); + ToolChain::addProfileRTLibs(Args, CmdArgs); +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Linux.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Linux.h new file mode 100644 index 0000000..9778c18 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Linux.h @@ -0,0 +1,57 @@ +//===--- Linux.h - Linux ToolChain Implementations --------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_LINUX_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_LINUX_H + +#include "Gnu.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY Linux : public Generic_ELF { +public: + Linux(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + + bool HasNativeLLVMSupport() const override; + + void + AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + std::string findLibCxxIncludePath() const override; + void addLibStdCxxIncludePaths( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + void AddCudaIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + void AddIAMCUIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + bool isPIEDefault() const override; + SanitizerMask getSupportedSanitizers() const override; + void addProfileRTLibs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const override; + virtual std::string computeSysRoot() const; + + virtual std::string getDynamicLinker(const llvm::opt::ArgList &Args) const; + + std::vector<std::string> ExtraOpts; + +protected: + Tool *buildAssembler() const override; + Tool *buildLinker() const override; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_LINUX_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/MSVC.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/MSVC.cpp new file mode 100644 index 0000000..7978a694 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/MSVC.cpp @@ -0,0 +1,1463 @@ +//===--- ToolChains.cpp - ToolChain Implementations -----------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "MSVC.h" +#include "CommonArgs.h" +#include "Darwin.h" +#include "clang/Basic/CharInfo.h" +#include "clang/Basic/Version.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Options.h" +#include "clang/Driver/SanitizerArgs.h" +#include "llvm/ADT/StringExtras.h" +#include "llvm/ADT/StringSwitch.h" +#include "llvm/Config/llvm-config.h" +#include "llvm/Option/Arg.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Support/ConvertUTF.h" +#include "llvm/Support/ErrorHandling.h" +#include "llvm/Support/FileSystem.h" +#include "llvm/Support/Host.h" +#include "llvm/Support/MemoryBuffer.h" +#include "llvm/Support/Path.h" +#include "llvm/Support/Process.h" +#include <cstdio> + +// Include the necessary headers to interface with the Windows registry and +// environment. +#if defined(LLVM_ON_WIN32) +#define USE_WIN32 +#endif + +#ifdef USE_WIN32 + #define WIN32_LEAN_AND_MEAN + #define NOGDI + #ifndef NOMINMAX + #define NOMINMAX + #endif + #include <windows.h> +#endif + +#ifdef _MSC_VER +// Don't support SetupApi on MinGW. +#define USE_MSVC_SETUP_API + +// Make sure this comes before MSVCSetupApi.h +#include <comdef.h> + +#include "MSVCSetupApi.h" +#include "llvm/Support/COM.h" +_COM_SMARTPTR_TYPEDEF(ISetupConfiguration, __uuidof(ISetupConfiguration)); +_COM_SMARTPTR_TYPEDEF(ISetupConfiguration2, __uuidof(ISetupConfiguration2)); +_COM_SMARTPTR_TYPEDEF(ISetupHelper, __uuidof(ISetupHelper)); +_COM_SMARTPTR_TYPEDEF(IEnumSetupInstances, __uuidof(IEnumSetupInstances)); +_COM_SMARTPTR_TYPEDEF(ISetupInstance, __uuidof(ISetupInstance)); +_COM_SMARTPTR_TYPEDEF(ISetupInstance2, __uuidof(ISetupInstance2)); +#endif + +using namespace clang::driver; +using namespace clang::driver::toolchains; +using namespace clang::driver::tools; +using namespace clang; +using namespace llvm::opt; + +// Defined below. +// Forward declare this so there aren't too many things above the constructor. +static bool getSystemRegistryString(const char *keyPath, const char *valueName, + std::string &value, std::string *phValue); + +// Check various environment variables to try and find a toolchain. +static bool findVCToolChainViaEnvironment(std::string &Path, + MSVCToolChain::ToolsetLayout &VSLayout) { + // These variables are typically set by vcvarsall.bat + // when launching a developer command prompt. + if (llvm::Optional<std::string> VCToolsInstallDir = + llvm::sys::Process::GetEnv("VCToolsInstallDir")) { + // This is only set by newer Visual Studios, and it leads straight to + // the toolchain directory. + Path = std::move(*VCToolsInstallDir); + VSLayout = MSVCToolChain::ToolsetLayout::VS2017OrNewer; + return true; + } + if (llvm::Optional<std::string> VCInstallDir = + llvm::sys::Process::GetEnv("VCINSTALLDIR")) { + // If the previous variable isn't set but this one is, then we've found + // an older Visual Studio. This variable is set by newer Visual Studios too, + // so this check has to appear second. + // In older Visual Studios, the VC directory is the toolchain. + Path = std::move(*VCInstallDir); + VSLayout = MSVCToolChain::ToolsetLayout::OlderVS; + return true; + } + + // We couldn't find any VC environment variables. Let's walk through PATH and + // see if it leads us to a VC toolchain bin directory. If it does, pick the + // first one that we find. + if (llvm::Optional<std::string> PathEnv = + llvm::sys::Process::GetEnv("PATH")) { + llvm::SmallVector<llvm::StringRef, 8> PathEntries; + llvm::StringRef(*PathEnv).split(PathEntries, llvm::sys::EnvPathSeparator); + for (llvm::StringRef PathEntry : PathEntries) { + if (PathEntry.empty()) + continue; + + llvm::SmallString<256> ExeTestPath; + + // If cl.exe doesn't exist, then this definitely isn't a VC toolchain. + ExeTestPath = PathEntry; + llvm::sys::path::append(ExeTestPath, "cl.exe"); + if (!llvm::sys::fs::exists(ExeTestPath)) + continue; + + // cl.exe existing isn't a conclusive test for a VC toolchain; clang also + // has a cl.exe. So let's check for link.exe too. + ExeTestPath = PathEntry; + llvm::sys::path::append(ExeTestPath, "link.exe"); + if (!llvm::sys::fs::exists(ExeTestPath)) + continue; + + // whatever/VC/bin --> old toolchain, VC dir is toolchain dir. + llvm::StringRef TestPath = PathEntry; + bool IsBin = llvm::sys::path::filename(TestPath).equals_lower("bin"); + if (!IsBin) { + // Strip any architecture subdir like "amd64". + TestPath = llvm::sys::path::parent_path(TestPath); + IsBin = llvm::sys::path::filename(TestPath).equals_lower("bin"); + } + if (IsBin) { + llvm::StringRef ParentPath = llvm::sys::path::parent_path(TestPath); + llvm::StringRef ParentFilename = llvm::sys::path::filename(ParentPath); + if (ParentFilename == "VC") { + Path = ParentPath; + VSLayout = MSVCToolChain::ToolsetLayout::OlderVS; + return true; + } + if (ParentFilename == "x86ret" || ParentFilename == "x86chk" + || ParentFilename == "amd64ret" || ParentFilename == "amd64chk") { + Path = ParentPath; + VSLayout = MSVCToolChain::ToolsetLayout::DevDivInternal; + return true; + } + + } else { + // This could be a new (>=VS2017) toolchain. If it is, we should find + // path components with these prefixes when walking backwards through + // the path. + // Note: empty strings match anything. + llvm::StringRef ExpectedPrefixes[] = {"", "Host", "bin", "", + "MSVC", "Tools", "VC"}; + + auto It = llvm::sys::path::rbegin(PathEntry); + auto End = llvm::sys::path::rend(PathEntry); + for (llvm::StringRef Prefix : ExpectedPrefixes) { + if (It == End) + goto NotAToolChain; + if (!It->startswith(Prefix)) + goto NotAToolChain; + ++It; + } + + // We've found a new toolchain! + // Back up 3 times (/bin/Host/arch) to get the root path. + llvm::StringRef ToolChainPath(PathEntry); + for (int i = 0; i < 3; ++i) + ToolChainPath = llvm::sys::path::parent_path(ToolChainPath); + + Path = ToolChainPath; + VSLayout = MSVCToolChain::ToolsetLayout::VS2017OrNewer; + return true; + } + + NotAToolChain: + continue; + } + } + return false; +} + +// Query the Setup Config server for installs, then pick the newest version +// and find its default VC toolchain. +// This is the preferred way to discover new Visual Studios, as they're no +// longer listed in the registry. +static bool findVCToolChainViaSetupConfig(std::string &Path, + MSVCToolChain::ToolsetLayout &VSLayout) { +#if !defined(USE_MSVC_SETUP_API) + return false; +#else + // FIXME: This really should be done once in the top-level program's main + // function, as it may have already been initialized with a different + // threading model otherwise. + llvm::sys::InitializeCOMRAII COM(llvm::sys::COMThreadingMode::SingleThreaded); + HRESULT HR; + + // _com_ptr_t will throw a _com_error if a COM calls fail. + // The LLVM coding standards forbid exception handling, so we'll have to + // stop them from being thrown in the first place. + // The destructor will put the regular error handler back when we leave + // this scope. + struct SuppressCOMErrorsRAII { + static void __stdcall handler(HRESULT hr, IErrorInfo *perrinfo) {} + + SuppressCOMErrorsRAII() { _set_com_error_handler(handler); } + + ~SuppressCOMErrorsRAII() { _set_com_error_handler(_com_raise_error); } + + } COMErrorSuppressor; + + ISetupConfigurationPtr Query; + HR = Query.CreateInstance(__uuidof(SetupConfiguration)); + if (FAILED(HR)) + return false; + + IEnumSetupInstancesPtr EnumInstances; + HR = ISetupConfiguration2Ptr(Query)->EnumAllInstances(&EnumInstances); + if (FAILED(HR)) + return false; + + ISetupInstancePtr Instance; + HR = EnumInstances->Next(1, &Instance, nullptr); + if (HR != S_OK) + return false; + + ISetupInstancePtr NewestInstance; + Optional<uint64_t> NewestVersionNum; + do { + bstr_t VersionString; + uint64_t VersionNum; + HR = Instance->GetInstallationVersion(VersionString.GetAddress()); + if (FAILED(HR)) + continue; + HR = ISetupHelperPtr(Query)->ParseVersion(VersionString, &VersionNum); + if (FAILED(HR)) + continue; + if (!NewestVersionNum || (VersionNum > NewestVersionNum)) { + NewestInstance = Instance; + NewestVersionNum = VersionNum; + } + } while ((HR = EnumInstances->Next(1, &Instance, nullptr)) == S_OK); + + if (!NewestInstance) + return false; + + bstr_t VCPathWide; + HR = NewestInstance->ResolvePath(L"VC", VCPathWide.GetAddress()); + if (FAILED(HR)) + return false; + + std::string VCRootPath; + llvm::convertWideToUTF8(std::wstring(VCPathWide), VCRootPath); + + llvm::SmallString<256> ToolsVersionFilePath(VCRootPath); + llvm::sys::path::append(ToolsVersionFilePath, "Auxiliary", "Build", + "Microsoft.VCToolsVersion.default.txt"); + + auto ToolsVersionFile = llvm::MemoryBuffer::getFile(ToolsVersionFilePath); + if (!ToolsVersionFile) + return false; + + llvm::SmallString<256> ToolchainPath(VCRootPath); + llvm::sys::path::append(ToolchainPath, "Tools", "MSVC", + ToolsVersionFile->get()->getBuffer().rtrim()); + if (!llvm::sys::fs::is_directory(ToolchainPath)) + return false; + + Path = ToolchainPath.str(); + VSLayout = MSVCToolChain::ToolsetLayout::VS2017OrNewer; + return true; +#endif +} + +// Look in the registry for Visual Studio installs, and use that to get +// a toolchain path. VS2017 and newer don't get added to the registry. +// So if we find something here, we know that it's an older version. +static bool findVCToolChainViaRegistry(std::string &Path, + MSVCToolChain::ToolsetLayout &VSLayout) { + std::string VSInstallPath; + if (getSystemRegistryString(R"(SOFTWARE\Microsoft\VisualStudio\$VERSION)", + "InstallDir", VSInstallPath, nullptr) || + getSystemRegistryString(R"(SOFTWARE\Microsoft\VCExpress\$VERSION)", + "InstallDir", VSInstallPath, nullptr)) { + if (!VSInstallPath.empty()) { + llvm::SmallString<256> VCPath(llvm::StringRef( + VSInstallPath.c_str(), VSInstallPath.find(R"(\Common7\IDE)"))); + llvm::sys::path::append(VCPath, "VC"); + + Path = VCPath.str(); + VSLayout = MSVCToolChain::ToolsetLayout::OlderVS; + return true; + } + } + return false; +} + +// Try to find Exe from a Visual Studio distribution. This first tries to find +// an installed copy of Visual Studio and, failing that, looks in the PATH, +// making sure that whatever executable that's found is not a same-named exe +// from clang itself to prevent clang from falling back to itself. +static std::string FindVisualStudioExecutable(const ToolChain &TC, + const char *Exe) { + const auto &MSVC = static_cast<const toolchains::MSVCToolChain &>(TC); + SmallString<128> FilePath(MSVC.getSubDirectoryPath( + toolchains::MSVCToolChain::SubDirectoryType::Bin)); + llvm::sys::path::append(FilePath, Exe); + return llvm::sys::fs::can_execute(FilePath) ? FilePath.str() : Exe; +} + +void visualstudio::Linker::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + ArgStringList CmdArgs; + + auto &TC = static_cast<const toolchains::MSVCToolChain &>(getToolChain()); + + assert((Output.isFilename() || Output.isNothing()) && "invalid output"); + if (Output.isFilename()) + CmdArgs.push_back( + Args.MakeArgString(std::string("-out:") + Output.getFilename())); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles) && + !C.getDriver().IsCLMode()) + CmdArgs.push_back("-defaultlib:libcmt"); + + if (!llvm::sys::Process::GetEnv("LIB")) { + // If the VC environment hasn't been configured (perhaps because the user + // did not run vcvarsall), try to build a consistent link environment. If + // the environment variable is set however, assume the user knows what + // they're doing. + CmdArgs.push_back(Args.MakeArgString( + Twine("-libpath:") + + TC.getSubDirectoryPath( + toolchains::MSVCToolChain::SubDirectoryType::Lib))); + + if (TC.useUniversalCRT()) { + std::string UniversalCRTLibPath; + if (TC.getUniversalCRTLibraryPath(UniversalCRTLibPath)) + CmdArgs.push_back( + Args.MakeArgString(Twine("-libpath:") + UniversalCRTLibPath)); + } + + std::string WindowsSdkLibPath; + if (TC.getWindowsSDKLibraryPath(WindowsSdkLibPath)) + CmdArgs.push_back( + Args.MakeArgString(std::string("-libpath:") + WindowsSdkLibPath)); + } + + if (!C.getDriver().IsCLMode() && Args.hasArg(options::OPT_L)) + for (const auto &LibPath : Args.getAllArgValues(options::OPT_L)) + CmdArgs.push_back(Args.MakeArgString("-libpath:" + LibPath)); + + CmdArgs.push_back("-nologo"); + + if (Args.hasArg(options::OPT_g_Group, options::OPT__SLASH_Z7, + options::OPT__SLASH_Zd)) + CmdArgs.push_back("-debug"); + + bool DLL = Args.hasArg(options::OPT__SLASH_LD, options::OPT__SLASH_LDd, + options::OPT_shared); + if (DLL) { + CmdArgs.push_back(Args.MakeArgString("-dll")); + + SmallString<128> ImplibName(Output.getFilename()); + llvm::sys::path::replace_extension(ImplibName, "lib"); + CmdArgs.push_back(Args.MakeArgString(std::string("-implib:") + ImplibName)); + } + + if (TC.getSanitizerArgs().needsAsanRt()) { + CmdArgs.push_back(Args.MakeArgString("-debug")); + CmdArgs.push_back(Args.MakeArgString("-incremental:no")); + if (TC.getSanitizerArgs().needsSharedAsanRt() || + Args.hasArg(options::OPT__SLASH_MD, options::OPT__SLASH_MDd)) { + for (const auto &Lib : {"asan_dynamic", "asan_dynamic_runtime_thunk"}) + CmdArgs.push_back(TC.getCompilerRTArgString(Args, Lib)); + // Make sure the dynamic runtime thunk is not optimized out at link time + // to ensure proper SEH handling. + CmdArgs.push_back(Args.MakeArgString( + TC.getArch() == llvm::Triple::x86 + ? "-include:___asan_seh_interceptor" + : "-include:__asan_seh_interceptor")); + // Make sure the linker consider all object files from the dynamic runtime + // thunk. + CmdArgs.push_back(Args.MakeArgString(std::string("-wholearchive:") + + TC.getCompilerRT(Args, "asan_dynamic_runtime_thunk"))); + } else if (DLL) { + CmdArgs.push_back(TC.getCompilerRTArgString(Args, "asan_dll_thunk")); + } else { + for (const auto &Lib : {"asan", "asan_cxx"}) { + CmdArgs.push_back(TC.getCompilerRTArgString(Args, Lib)); + // Make sure the linker consider all object files from the static lib. + // This is necessary because instrumented dlls need access to all the + // interface exported by the static lib in the main executable. + CmdArgs.push_back(Args.MakeArgString(std::string("-wholearchive:") + + TC.getCompilerRT(Args, Lib))); + } + } + } + + Args.AddAllArgValues(CmdArgs, options::OPT__SLASH_link); + + if (Args.hasFlag(options::OPT_fopenmp, options::OPT_fopenmp_EQ, + options::OPT_fno_openmp, false)) { + CmdArgs.push_back("-nodefaultlib:vcomp.lib"); + CmdArgs.push_back("-nodefaultlib:vcompd.lib"); + CmdArgs.push_back(Args.MakeArgString(std::string("-libpath:") + + TC.getDriver().Dir + "/../lib")); + switch (TC.getDriver().getOpenMPRuntime(Args)) { + case Driver::OMPRT_OMP: + CmdArgs.push_back("-defaultlib:libomp.lib"); + break; + case Driver::OMPRT_IOMP5: + CmdArgs.push_back("-defaultlib:libiomp5md.lib"); + break; + case Driver::OMPRT_GOMP: + break; + case Driver::OMPRT_Unknown: + // Already diagnosed. + break; + } + } + + // Add compiler-rt lib in case if it was explicitly + // specified as an argument for --rtlib option. + if (!Args.hasArg(options::OPT_nostdlib)) { + AddRunTimeLibs(TC, TC.getDriver(), CmdArgs, Args); + } + + // Add filenames, libraries, and other linker inputs. + for (const auto &Input : Inputs) { + if (Input.isFilename()) { + CmdArgs.push_back(Input.getFilename()); + continue; + } + + const Arg &A = Input.getInputArg(); + + // Render -l options differently for the MSVC linker. + if (A.getOption().matches(options::OPT_l)) { + StringRef Lib = A.getValue(); + const char *LinkLibArg; + if (Lib.endswith(".lib")) + LinkLibArg = Args.MakeArgString(Lib); + else + LinkLibArg = Args.MakeArgString(Lib + ".lib"); + CmdArgs.push_back(LinkLibArg); + continue; + } + + // Otherwise, this is some other kind of linker input option like -Wl, -z, + // or -L. Render it, even if MSVC doesn't understand it. + A.renderAsInput(Args, CmdArgs); + } + + TC.addProfileRTLibs(Args, CmdArgs); + + std::vector<const char *> Environment; + + // We need to special case some linker paths. In the case of lld, we need to + // translate 'lld' into 'lld-link', and in the case of the regular msvc + // linker, we need to use a special search algorithm. + llvm::SmallString<128> linkPath; + StringRef Linker = Args.getLastArgValue(options::OPT_fuse_ld_EQ, "link"); + if (Linker.equals_lower("lld")) + Linker = "lld-link"; + + if (Linker.equals_lower("link")) { + // If we're using the MSVC linker, it's not sufficient to just use link + // from the program PATH, because other environments like GnuWin32 install + // their own link.exe which may come first. + linkPath = FindVisualStudioExecutable(TC, "link.exe"); + +#ifdef USE_WIN32 + // When cross-compiling with VS2017 or newer, link.exe expects to have + // its containing bin directory at the top of PATH, followed by the + // native target bin directory. + // e.g. when compiling for x86 on an x64 host, PATH should start with: + // /bin/HostX64/x86;/bin/HostX64/x64 + // This doesn't attempt to handle ToolsetLayout::DevDivInternal. + if (TC.getIsVS2017OrNewer() && + llvm::Triple(llvm::sys::getProcessTriple()).getArch() != TC.getArch()) { + auto HostArch = llvm::Triple(llvm::sys::getProcessTriple()).getArch(); + + auto EnvBlockWide = + std::unique_ptr<wchar_t[], decltype(&FreeEnvironmentStringsW)>( + GetEnvironmentStringsW(), FreeEnvironmentStringsW); + if (!EnvBlockWide) + goto SkipSettingEnvironment; + + size_t EnvCount = 0; + size_t EnvBlockLen = 0; + while (EnvBlockWide[EnvBlockLen] != L'\0') { + ++EnvCount; + EnvBlockLen += std::wcslen(&EnvBlockWide[EnvBlockLen]) + + 1 /*string null-terminator*/; + } + ++EnvBlockLen; // add the block null-terminator + + std::string EnvBlock; + if (!llvm::convertUTF16ToUTF8String( + llvm::ArrayRef<char>(reinterpret_cast<char *>(EnvBlockWide.get()), + EnvBlockLen * sizeof(EnvBlockWide[0])), + EnvBlock)) + goto SkipSettingEnvironment; + + Environment.reserve(EnvCount); + + // Now loop over each string in the block and copy them into the + // environment vector, adjusting the PATH variable as needed when we + // find it. + for (const char *Cursor = EnvBlock.data(); *Cursor != '\0';) { + llvm::StringRef EnvVar(Cursor); + if (EnvVar.startswith_lower("path=")) { + using SubDirectoryType = toolchains::MSVCToolChain::SubDirectoryType; + constexpr size_t PrefixLen = 5; // strlen("path=") + Environment.push_back(Args.MakeArgString( + EnvVar.substr(0, PrefixLen) + + TC.getSubDirectoryPath(SubDirectoryType::Bin) + + llvm::Twine(llvm::sys::EnvPathSeparator) + + TC.getSubDirectoryPath(SubDirectoryType::Bin, HostArch) + + (EnvVar.size() > PrefixLen + ? llvm::Twine(llvm::sys::EnvPathSeparator) + + EnvVar.substr(PrefixLen) + : ""))); + } else { + Environment.push_back(Args.MakeArgString(EnvVar)); + } + Cursor += EnvVar.size() + 1 /*null-terminator*/; + } + } + SkipSettingEnvironment:; +#endif + } else { + linkPath = TC.GetProgramPath(Linker.str().c_str()); + } + + auto LinkCmd = llvm::make_unique<Command>( + JA, *this, Args.MakeArgString(linkPath), CmdArgs, Inputs); + if (!Environment.empty()) + LinkCmd->setEnvironment(Environment); + C.addCommand(std::move(LinkCmd)); +} + +void visualstudio::Compiler::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + C.addCommand(GetCommand(C, JA, Output, Inputs, Args, LinkingOutput)); +} + +std::unique_ptr<Command> visualstudio::Compiler::GetCommand( + Compilation &C, const JobAction &JA, const InputInfo &Output, + const InputInfoList &Inputs, const ArgList &Args, + const char *LinkingOutput) const { + ArgStringList CmdArgs; + CmdArgs.push_back("/nologo"); + CmdArgs.push_back("/c"); // Compile only. + CmdArgs.push_back("/W0"); // No warnings. + + // The goal is to be able to invoke this tool correctly based on + // any flag accepted by clang-cl. + + // These are spelled the same way in clang and cl.exe,. + Args.AddAllArgs(CmdArgs, {options::OPT_D, options::OPT_U, options::OPT_I}); + + // Optimization level. + if (Arg *A = Args.getLastArg(options::OPT_fbuiltin, options::OPT_fno_builtin)) + CmdArgs.push_back(A->getOption().getID() == options::OPT_fbuiltin ? "/Oi" + : "/Oi-"); + if (Arg *A = Args.getLastArg(options::OPT_O, options::OPT_O0)) { + if (A->getOption().getID() == options::OPT_O0) { + CmdArgs.push_back("/Od"); + } else { + CmdArgs.push_back("/Og"); + + StringRef OptLevel = A->getValue(); + if (OptLevel == "s" || OptLevel == "z") + CmdArgs.push_back("/Os"); + else + CmdArgs.push_back("/Ot"); + + CmdArgs.push_back("/Ob2"); + } + } + if (Arg *A = Args.getLastArg(options::OPT_fomit_frame_pointer, + options::OPT_fno_omit_frame_pointer)) + CmdArgs.push_back(A->getOption().getID() == options::OPT_fomit_frame_pointer + ? "/Oy" + : "/Oy-"); + if (!Args.hasArg(options::OPT_fwritable_strings)) + CmdArgs.push_back("/GF"); + + // Flags for which clang-cl has an alias. + // FIXME: How can we ensure this stays in sync with relevant clang-cl options? + + if (Args.hasFlag(options::OPT__SLASH_GR_, options::OPT__SLASH_GR, + /*default=*/false)) + CmdArgs.push_back("/GR-"); + + if (Args.hasFlag(options::OPT__SLASH_GS_, options::OPT__SLASH_GS, + /*default=*/false)) + CmdArgs.push_back("/GS-"); + + if (Arg *A = Args.getLastArg(options::OPT_ffunction_sections, + options::OPT_fno_function_sections)) + CmdArgs.push_back(A->getOption().getID() == options::OPT_ffunction_sections + ? "/Gy" + : "/Gy-"); + if (Arg *A = Args.getLastArg(options::OPT_fdata_sections, + options::OPT_fno_data_sections)) + CmdArgs.push_back( + A->getOption().getID() == options::OPT_fdata_sections ? "/Gw" : "/Gw-"); + if (Args.hasArg(options::OPT_fsyntax_only)) + CmdArgs.push_back("/Zs"); + if (Args.hasArg(options::OPT_g_Flag, options::OPT_gline_tables_only, + options::OPT__SLASH_Z7)) + CmdArgs.push_back("/Z7"); + + std::vector<std::string> Includes = + Args.getAllArgValues(options::OPT_include); + for (const auto &Include : Includes) + CmdArgs.push_back(Args.MakeArgString(std::string("/FI") + Include)); + + // Flags that can simply be passed through. + Args.AddAllArgs(CmdArgs, options::OPT__SLASH_LD); + Args.AddAllArgs(CmdArgs, options::OPT__SLASH_LDd); + Args.AddAllArgs(CmdArgs, options::OPT__SLASH_GX); + Args.AddAllArgs(CmdArgs, options::OPT__SLASH_GX_); + Args.AddAllArgs(CmdArgs, options::OPT__SLASH_EH); + Args.AddAllArgs(CmdArgs, options::OPT__SLASH_Zl); + + // The order of these flags is relevant, so pick the last one. + if (Arg *A = Args.getLastArg(options::OPT__SLASH_MD, options::OPT__SLASH_MDd, + options::OPT__SLASH_MT, options::OPT__SLASH_MTd)) + A->render(Args, CmdArgs); + + // Use MSVC's default threadsafe statics behaviour unless there was a flag. + if (Arg *A = Args.getLastArg(options::OPT_fthreadsafe_statics, + options::OPT_fno_threadsafe_statics)) { + CmdArgs.push_back(A->getOption().getID() == options::OPT_fthreadsafe_statics + ? "/Zc:threadSafeInit" + : "/Zc:threadSafeInit-"); + } + + // Pass through all unknown arguments so that the fallback command can see + // them too. + Args.AddAllArgs(CmdArgs, options::OPT_UNKNOWN); + + // Input filename. + assert(Inputs.size() == 1); + const InputInfo &II = Inputs[0]; + assert(II.getType() == types::TY_C || II.getType() == types::TY_CXX); + CmdArgs.push_back(II.getType() == types::TY_C ? "/Tc" : "/Tp"); + if (II.isFilename()) + CmdArgs.push_back(II.getFilename()); + else + II.getInputArg().renderAsInput(Args, CmdArgs); + + // Output filename. + assert(Output.getType() == types::TY_Object); + const char *Fo = + Args.MakeArgString(std::string("/Fo") + Output.getFilename()); + CmdArgs.push_back(Fo); + + std::string Exec = FindVisualStudioExecutable(getToolChain(), "cl.exe"); + return llvm::make_unique<Command>(JA, *this, Args.MakeArgString(Exec), + CmdArgs, Inputs); +} + +MSVCToolChain::MSVCToolChain(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : ToolChain(D, Triple, Args), CudaInstallation(D, Triple, Args) { + getProgramPaths().push_back(getDriver().getInstalledDir()); + if (getDriver().getInstalledDir() != getDriver().Dir) + getProgramPaths().push_back(getDriver().Dir); + + // Check the environment first, since that's probably the user telling us + // what they want to use. + // Failing that, just try to find the newest Visual Studio version we can + // and use its default VC toolchain. + findVCToolChainViaEnvironment(VCToolChainPath, VSLayout) || + findVCToolChainViaSetupConfig(VCToolChainPath, VSLayout) || + findVCToolChainViaRegistry(VCToolChainPath, VSLayout); +} + +Tool *MSVCToolChain::buildLinker() const { + if (VCToolChainPath.empty()) + getDriver().Diag(clang::diag::warn_drv_msvc_not_found); + return new tools::visualstudio::Linker(*this); +} + +Tool *MSVCToolChain::buildAssembler() const { + if (getTriple().isOSBinFormatMachO()) + return new tools::darwin::Assembler(*this); + getDriver().Diag(clang::diag::err_no_external_assembler); + return nullptr; +} + +bool MSVCToolChain::IsIntegratedAssemblerDefault() const { + return true; +} + +bool MSVCToolChain::IsUnwindTablesDefault(const ArgList &Args) const { + // Emit unwind tables by default on Win64. All non-x86_32 Windows platforms + // such as ARM and PPC actually require unwind tables, but LLVM doesn't know + // how to generate them yet. + + // Don't emit unwind tables by default for MachO targets. + if (getTriple().isOSBinFormatMachO()) + return false; + + return getArch() == llvm::Triple::x86_64; +} + +bool MSVCToolChain::isPICDefault() const { + return getArch() == llvm::Triple::x86_64; +} + +bool MSVCToolChain::isPIEDefault() const { + return false; +} + +bool MSVCToolChain::isPICDefaultForced() const { + return getArch() == llvm::Triple::x86_64; +} + +void MSVCToolChain::AddCudaIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + CudaInstallation.AddCudaIncludeArgs(DriverArgs, CC1Args); +} + +void MSVCToolChain::printVerboseInfo(raw_ostream &OS) const { + CudaInstallation.print(OS); +} + +// Windows SDKs and VC Toolchains group their contents into subdirectories based +// on the target architecture. This function converts an llvm::Triple::ArchType +// to the corresponding subdirectory name. +static const char *llvmArchToWindowsSDKArch(llvm::Triple::ArchType Arch) { + using ArchType = llvm::Triple::ArchType; + switch (Arch) { + case ArchType::x86: + return "x86"; + case ArchType::x86_64: + return "x64"; + case ArchType::arm: + return "arm"; + default: + return ""; + } +} + +// Similar to the above function, but for Visual Studios before VS2017. +static const char *llvmArchToLegacyVCArch(llvm::Triple::ArchType Arch) { + using ArchType = llvm::Triple::ArchType; + switch (Arch) { + case ArchType::x86: + // x86 is default in legacy VC toolchains. + // e.g. x86 libs are directly in /lib as opposed to /lib/x86. + return ""; + case ArchType::x86_64: + return "amd64"; + case ArchType::arm: + return "arm"; + default: + return ""; + } +} + +// Similar to the above function, but for DevDiv internal builds. +static const char *llvmArchToDevDivInternalArch(llvm::Triple::ArchType Arch) { + using ArchType = llvm::Triple::ArchType; + switch (Arch) { + case ArchType::x86: + return "i386"; + case ArchType::x86_64: + return "amd64"; + case ArchType::arm: + return "arm"; + default: + return ""; + } +} + +// Get the path to a specific subdirectory in the current toolchain for +// a given target architecture. +// VS2017 changed the VC toolchain layout, so this should be used instead +// of hardcoding paths. +std::string +MSVCToolChain::getSubDirectoryPath(SubDirectoryType Type, + llvm::Triple::ArchType TargetArch) const { + const char *SubdirName; + const char *IncludeName; + switch (VSLayout) { + case ToolsetLayout::OlderVS: + SubdirName = llvmArchToLegacyVCArch(TargetArch); + IncludeName = "include"; + break; + case ToolsetLayout::VS2017OrNewer: + SubdirName = llvmArchToWindowsSDKArch(TargetArch); + IncludeName = "include"; + break; + case ToolsetLayout::DevDivInternal: + SubdirName = llvmArchToDevDivInternalArch(TargetArch); + IncludeName = "inc"; + break; + } + + llvm::SmallString<256> Path(VCToolChainPath); + switch (Type) { + case SubDirectoryType::Bin: + if (VSLayout == ToolsetLayout::VS2017OrNewer) { + const bool HostIsX64 = + llvm::Triple(llvm::sys::getProcessTriple()).isArch64Bit(); + const char *const HostName = HostIsX64 ? "HostX64" : "HostX86"; + llvm::sys::path::append(Path, "bin", HostName, SubdirName); + } else { // OlderVS or DevDivInternal + llvm::sys::path::append(Path, "bin", SubdirName); + } + break; + case SubDirectoryType::Include: + llvm::sys::path::append(Path, IncludeName); + break; + case SubDirectoryType::Lib: + llvm::sys::path::append(Path, "lib", SubdirName); + break; + } + return Path.str(); +} + +#ifdef USE_WIN32 +static bool readFullStringValue(HKEY hkey, const char *valueName, + std::string &value) { + std::wstring WideValueName; + if (!llvm::ConvertUTF8toWide(valueName, WideValueName)) + return false; + + DWORD result = 0; + DWORD valueSize = 0; + DWORD type = 0; + // First just query for the required size. + result = RegQueryValueExW(hkey, WideValueName.c_str(), NULL, &type, NULL, + &valueSize); + if (result != ERROR_SUCCESS || type != REG_SZ || !valueSize) + return false; + std::vector<BYTE> buffer(valueSize); + result = RegQueryValueExW(hkey, WideValueName.c_str(), NULL, NULL, &buffer[0], + &valueSize); + if (result == ERROR_SUCCESS) { + std::wstring WideValue(reinterpret_cast<const wchar_t *>(buffer.data()), + valueSize / sizeof(wchar_t)); + if (valueSize && WideValue.back() == L'\0') { + WideValue.pop_back(); + } + // The destination buffer must be empty as an invariant of the conversion + // function; but this function is sometimes called in a loop that passes in + // the same buffer, however. Simply clear it out so we can overwrite it. + value.clear(); + return llvm::convertWideToUTF8(WideValue, value); + } + return false; +} +#endif + +/// \brief Read registry string. +/// This also supports a means to look for high-versioned keys by use +/// of a $VERSION placeholder in the key path. +/// $VERSION in the key path is a placeholder for the version number, +/// causing the highest value path to be searched for and used. +/// I.e. "SOFTWARE\\Microsoft\\VisualStudio\\$VERSION". +/// There can be additional characters in the component. Only the numeric +/// characters are compared. This function only searches HKLM. +static bool getSystemRegistryString(const char *keyPath, const char *valueName, + std::string &value, std::string *phValue) { +#ifndef USE_WIN32 + return false; +#else + HKEY hRootKey = HKEY_LOCAL_MACHINE; + HKEY hKey = NULL; + long lResult; + bool returnValue = false; + + const char *placeHolder = strstr(keyPath, "$VERSION"); + std::string bestName; + // If we have a $VERSION placeholder, do the highest-version search. + if (placeHolder) { + const char *keyEnd = placeHolder - 1; + const char *nextKey = placeHolder; + // Find end of previous key. + while ((keyEnd > keyPath) && (*keyEnd != '\\')) + keyEnd--; + // Find end of key containing $VERSION. + while (*nextKey && (*nextKey != '\\')) + nextKey++; + size_t partialKeyLength = keyEnd - keyPath; + char partialKey[256]; + if (partialKeyLength >= sizeof(partialKey)) + partialKeyLength = sizeof(partialKey) - 1; + strncpy(partialKey, keyPath, partialKeyLength); + partialKey[partialKeyLength] = '\0'; + HKEY hTopKey = NULL; + lResult = RegOpenKeyExA(hRootKey, partialKey, 0, KEY_READ | KEY_WOW64_32KEY, + &hTopKey); + if (lResult == ERROR_SUCCESS) { + char keyName[256]; + double bestValue = 0.0; + DWORD index, size = sizeof(keyName) - 1; + for (index = 0; RegEnumKeyExA(hTopKey, index, keyName, &size, NULL, NULL, + NULL, NULL) == ERROR_SUCCESS; + index++) { + const char *sp = keyName; + while (*sp && !isDigit(*sp)) + sp++; + if (!*sp) + continue; + const char *ep = sp + 1; + while (*ep && (isDigit(*ep) || (*ep == '.'))) + ep++; + char numBuf[32]; + strncpy(numBuf, sp, sizeof(numBuf) - 1); + numBuf[sizeof(numBuf) - 1] = '\0'; + double dvalue = strtod(numBuf, NULL); + if (dvalue > bestValue) { + // Test that InstallDir is indeed there before keeping this index. + // Open the chosen key path remainder. + bestName = keyName; + // Append rest of key. + bestName.append(nextKey); + lResult = RegOpenKeyExA(hTopKey, bestName.c_str(), 0, + KEY_READ | KEY_WOW64_32KEY, &hKey); + if (lResult == ERROR_SUCCESS) { + if (readFullStringValue(hKey, valueName, value)) { + bestValue = dvalue; + if (phValue) + *phValue = bestName; + returnValue = true; + } + RegCloseKey(hKey); + } + } + size = sizeof(keyName) - 1; + } + RegCloseKey(hTopKey); + } + } else { + lResult = + RegOpenKeyExA(hRootKey, keyPath, 0, KEY_READ | KEY_WOW64_32KEY, &hKey); + if (lResult == ERROR_SUCCESS) { + if (readFullStringValue(hKey, valueName, value)) + returnValue = true; + if (phValue) + phValue->clear(); + RegCloseKey(hKey); + } + } + return returnValue; +#endif // USE_WIN32 +} + +// Find the most recent version of Universal CRT or Windows 10 SDK. +// vcvarsqueryregistry.bat from Visual Studio 2015 sorts entries in the include +// directory by name and uses the last one of the list. +// So we compare entry names lexicographically to find the greatest one. +static bool getWindows10SDKVersionFromPath(const std::string &SDKPath, + std::string &SDKVersion) { + SDKVersion.clear(); + + std::error_code EC; + llvm::SmallString<128> IncludePath(SDKPath); + llvm::sys::path::append(IncludePath, "Include"); + for (llvm::sys::fs::directory_iterator DirIt(IncludePath, EC), DirEnd; + DirIt != DirEnd && !EC; DirIt.increment(EC)) { + if (!llvm::sys::fs::is_directory(DirIt->path())) + continue; + StringRef CandidateName = llvm::sys::path::filename(DirIt->path()); + // If WDK is installed, there could be subfolders like "wdf" in the + // "Include" directory. + // Allow only directories which names start with "10.". + if (!CandidateName.startswith("10.")) + continue; + if (CandidateName > SDKVersion) + SDKVersion = CandidateName; + } + + return !SDKVersion.empty(); +} + +/// \brief Get Windows SDK installation directory. +static bool getWindowsSDKDir(std::string &Path, int &Major, + std::string &WindowsSDKIncludeVersion, + std::string &WindowsSDKLibVersion) { + std::string RegistrySDKVersion; + // Try the Windows registry. + if (!getSystemRegistryString( + "SOFTWARE\\Microsoft\\Microsoft SDKs\\Windows\\$VERSION", + "InstallationFolder", Path, &RegistrySDKVersion)) + return false; + if (Path.empty() || RegistrySDKVersion.empty()) + return false; + + WindowsSDKIncludeVersion.clear(); + WindowsSDKLibVersion.clear(); + Major = 0; + std::sscanf(RegistrySDKVersion.c_str(), "v%d.", &Major); + if (Major <= 7) + return true; + if (Major == 8) { + // Windows SDK 8.x installs libraries in a folder whose names depend on the + // version of the OS you're targeting. By default choose the newest, which + // usually corresponds to the version of the OS you've installed the SDK on. + const char *Tests[] = {"winv6.3", "win8", "win7"}; + for (const char *Test : Tests) { + llvm::SmallString<128> TestPath(Path); + llvm::sys::path::append(TestPath, "Lib", Test); + if (llvm::sys::fs::exists(TestPath.c_str())) { + WindowsSDKLibVersion = Test; + break; + } + } + return !WindowsSDKLibVersion.empty(); + } + if (Major == 10) { + if (!getWindows10SDKVersionFromPath(Path, WindowsSDKIncludeVersion)) + return false; + WindowsSDKLibVersion = WindowsSDKIncludeVersion; + return true; + } + // Unsupported SDK version + return false; +} + +// Gets the library path required to link against the Windows SDK. +bool MSVCToolChain::getWindowsSDKLibraryPath(std::string &path) const { + std::string sdkPath; + int sdkMajor = 0; + std::string windowsSDKIncludeVersion; + std::string windowsSDKLibVersion; + + path.clear(); + if (!getWindowsSDKDir(sdkPath, sdkMajor, windowsSDKIncludeVersion, + windowsSDKLibVersion)) + return false; + + llvm::SmallString<128> libPath(sdkPath); + llvm::sys::path::append(libPath, "Lib"); + if (sdkMajor >= 8) { + llvm::sys::path::append(libPath, windowsSDKLibVersion, "um", + llvmArchToWindowsSDKArch(getArch())); + } else { + switch (getArch()) { + // In Windows SDK 7.x, x86 libraries are directly in the Lib folder. + case llvm::Triple::x86: + break; + case llvm::Triple::x86_64: + llvm::sys::path::append(libPath, "x64"); + break; + case llvm::Triple::arm: + // It is not necessary to link against Windows SDK 7.x when targeting ARM. + return false; + default: + return false; + } + } + + path = libPath.str(); + return true; +} + +// Check if the Include path of a specified version of Visual Studio contains +// specific header files. If not, they are probably shipped with Universal CRT. +bool MSVCToolChain::useUniversalCRT() const { + llvm::SmallString<128> TestPath( + getSubDirectoryPath(SubDirectoryType::Include)); + llvm::sys::path::append(TestPath, "stdlib.h"); + return !llvm::sys::fs::exists(TestPath); +} + +static bool getUniversalCRTSdkDir(std::string &Path, std::string &UCRTVersion) { + // vcvarsqueryregistry.bat for Visual Studio 2015 queries the registry + // for the specific key "KitsRoot10". So do we. + if (!getSystemRegistryString( + "SOFTWARE\\Microsoft\\Windows Kits\\Installed Roots", "KitsRoot10", + Path, nullptr)) + return false; + + return getWindows10SDKVersionFromPath(Path, UCRTVersion); +} + +bool MSVCToolChain::getUniversalCRTLibraryPath(std::string &Path) const { + std::string UniversalCRTSdkPath; + std::string UCRTVersion; + + Path.clear(); + if (!getUniversalCRTSdkDir(UniversalCRTSdkPath, UCRTVersion)) + return false; + + StringRef ArchName = llvmArchToWindowsSDKArch(getArch()); + if (ArchName.empty()) + return false; + + llvm::SmallString<128> LibPath(UniversalCRTSdkPath); + llvm::sys::path::append(LibPath, "Lib", UCRTVersion, "ucrt", ArchName); + + Path = LibPath.str(); + return true; +} + +static VersionTuple getMSVCVersionFromTriple(const llvm::Triple &Triple) { + unsigned Major, Minor, Micro; + Triple.getEnvironmentVersion(Major, Minor, Micro); + if (Major || Minor || Micro) + return VersionTuple(Major, Minor, Micro); + return VersionTuple(); +} + +static VersionTuple getMSVCVersionFromExe(const std::string &BinDir) { + VersionTuple Version; +#ifdef USE_WIN32 + SmallString<128> ClExe(BinDir); + llvm::sys::path::append(ClExe, "cl.exe"); + + std::wstring ClExeWide; + if (!llvm::ConvertUTF8toWide(ClExe.c_str(), ClExeWide)) + return Version; + + const DWORD VersionSize = ::GetFileVersionInfoSizeW(ClExeWide.c_str(), + nullptr); + if (VersionSize == 0) + return Version; + + SmallVector<uint8_t, 4 * 1024> VersionBlock(VersionSize); + if (!::GetFileVersionInfoW(ClExeWide.c_str(), 0, VersionSize, + VersionBlock.data())) + return Version; + + VS_FIXEDFILEINFO *FileInfo = nullptr; + UINT FileInfoSize = 0; + if (!::VerQueryValueW(VersionBlock.data(), L"\\", + reinterpret_cast<LPVOID *>(&FileInfo), &FileInfoSize) || + FileInfoSize < sizeof(*FileInfo)) + return Version; + + const unsigned Major = (FileInfo->dwFileVersionMS >> 16) & 0xFFFF; + const unsigned Minor = (FileInfo->dwFileVersionMS ) & 0xFFFF; + const unsigned Micro = (FileInfo->dwFileVersionLS >> 16) & 0xFFFF; + + Version = VersionTuple(Major, Minor, Micro); +#endif + return Version; +} + +void MSVCToolChain::AddSystemIncludeWithSubfolder( + const ArgList &DriverArgs, ArgStringList &CC1Args, + const std::string &folder, const Twine &subfolder1, const Twine &subfolder2, + const Twine &subfolder3) const { + llvm::SmallString<128> path(folder); + llvm::sys::path::append(path, subfolder1, subfolder2, subfolder3); + addSystemInclude(DriverArgs, CC1Args, path); +} + +void MSVCToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + if (DriverArgs.hasArg(options::OPT_nostdinc)) + return; + + if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) { + AddSystemIncludeWithSubfolder(DriverArgs, CC1Args, getDriver().ResourceDir, + "include"); + } + + // Add %INCLUDE%-like directories from the -imsvc flag. + for (const auto &Path : DriverArgs.getAllArgValues(options::OPT__SLASH_imsvc)) + addSystemInclude(DriverArgs, CC1Args, Path); + + if (DriverArgs.hasArg(options::OPT_nostdlibinc)) + return; + + // Honor %INCLUDE%. It should know essential search paths with vcvarsall.bat. + if (llvm::Optional<std::string> cl_include_dir = + llvm::sys::Process::GetEnv("INCLUDE")) { + SmallVector<StringRef, 8> Dirs; + StringRef(*cl_include_dir) + .split(Dirs, ";", /*MaxSplit=*/-1, /*KeepEmpty=*/false); + for (StringRef Dir : Dirs) + addSystemInclude(DriverArgs, CC1Args, Dir); + if (!Dirs.empty()) + return; + } + + // When built with access to the proper Windows APIs, try to actually find + // the correct include paths first. + if (!VCToolChainPath.empty()) { + addSystemInclude(DriverArgs, CC1Args, + getSubDirectoryPath(SubDirectoryType::Include)); + + if (useUniversalCRT()) { + std::string UniversalCRTSdkPath; + std::string UCRTVersion; + if (getUniversalCRTSdkDir(UniversalCRTSdkPath, UCRTVersion)) { + AddSystemIncludeWithSubfolder(DriverArgs, CC1Args, UniversalCRTSdkPath, + "Include", UCRTVersion, "ucrt"); + } + } + + std::string WindowsSDKDir; + int major; + std::string windowsSDKIncludeVersion; + std::string windowsSDKLibVersion; + if (getWindowsSDKDir(WindowsSDKDir, major, windowsSDKIncludeVersion, + windowsSDKLibVersion)) { + if (major >= 8) { + // Note: windowsSDKIncludeVersion is empty for SDKs prior to v10. + // Anyway, llvm::sys::path::append is able to manage it. + AddSystemIncludeWithSubfolder(DriverArgs, CC1Args, WindowsSDKDir, + "include", windowsSDKIncludeVersion, + "shared"); + AddSystemIncludeWithSubfolder(DriverArgs, CC1Args, WindowsSDKDir, + "include", windowsSDKIncludeVersion, + "um"); + AddSystemIncludeWithSubfolder(DriverArgs, CC1Args, WindowsSDKDir, + "include", windowsSDKIncludeVersion, + "winrt"); + } else { + AddSystemIncludeWithSubfolder(DriverArgs, CC1Args, WindowsSDKDir, + "include"); + } + } + + return; + } + +#if defined(LLVM_ON_WIN32) + // As a fallback, select default install paths. + // FIXME: Don't guess drives and paths like this on Windows. + const StringRef Paths[] = { + "C:/Program Files/Microsoft Visual Studio 10.0/VC/include", + "C:/Program Files/Microsoft Visual Studio 9.0/VC/include", + "C:/Program Files/Microsoft Visual Studio 9.0/VC/PlatformSDK/Include", + "C:/Program Files/Microsoft Visual Studio 8/VC/include", + "C:/Program Files/Microsoft Visual Studio 8/VC/PlatformSDK/Include" + }; + addSystemIncludes(DriverArgs, CC1Args, Paths); +#endif +} + +void MSVCToolChain::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + // FIXME: There should probably be logic here to find libc++ on Windows. +} + +VersionTuple MSVCToolChain::computeMSVCVersion(const Driver *D, + const ArgList &Args) const { + bool IsWindowsMSVC = getTriple().isWindowsMSVCEnvironment(); + VersionTuple MSVT = ToolChain::computeMSVCVersion(D, Args); + if (MSVT.empty()) + MSVT = getMSVCVersionFromTriple(getTriple()); + if (MSVT.empty() && IsWindowsMSVC) + MSVT = getMSVCVersionFromExe(getSubDirectoryPath(SubDirectoryType::Bin)); + if (MSVT.empty() && + Args.hasFlag(options::OPT_fms_extensions, options::OPT_fno_ms_extensions, + IsWindowsMSVC)) { + // -fms-compatibility-version=18.00 is default. + // FIXME: Consider bumping this to 19 (MSVC2015) soon. + MSVT = VersionTuple(18); + } + return MSVT; +} + +std::string +MSVCToolChain::ComputeEffectiveClangTriple(const ArgList &Args, + types::ID InputType) const { + // The MSVC version doesn't care about the architecture, even though it + // may look at the triple internally. + VersionTuple MSVT = computeMSVCVersion(/*D=*/nullptr, Args); + MSVT = VersionTuple(MSVT.getMajor(), MSVT.getMinor().getValueOr(0), + MSVT.getSubminor().getValueOr(0)); + + // For the rest of the triple, however, a computed architecture name may + // be needed. + llvm::Triple Triple(ToolChain::ComputeEffectiveClangTriple(Args, InputType)); + if (Triple.getEnvironment() == llvm::Triple::MSVC) { + StringRef ObjFmt = Triple.getEnvironmentName().split('-').second; + if (ObjFmt.empty()) + Triple.setEnvironmentName((Twine("msvc") + MSVT.getAsString()).str()); + else + Triple.setEnvironmentName( + (Twine("msvc") + MSVT.getAsString() + Twine('-') + ObjFmt).str()); + } + return Triple.getTriple(); +} + +SanitizerMask MSVCToolChain::getSupportedSanitizers() const { + SanitizerMask Res = ToolChain::getSupportedSanitizers(); + Res |= SanitizerKind::Address; + return Res; +} + +static void TranslateOptArg(Arg *A, llvm::opt::DerivedArgList &DAL, + bool SupportsForcingFramePointer, + const char *ExpandChar, const OptTable &Opts) { + assert(A->getOption().matches(options::OPT__SLASH_O)); + + StringRef OptStr = A->getValue(); + for (size_t I = 0, E = OptStr.size(); I != E; ++I) { + const char &OptChar = *(OptStr.data() + I); + switch (OptChar) { + default: + break; + case '1': + case '2': + case 'x': + case 'd': + if (&OptChar == ExpandChar) { + if (OptChar == 'd') { + DAL.AddFlagArg(A, Opts.getOption(options::OPT_O0)); + } else { + if (OptChar == '1') { + DAL.AddJoinedArg(A, Opts.getOption(options::OPT_O), "s"); + } else if (OptChar == '2' || OptChar == 'x') { + DAL.AddFlagArg(A, Opts.getOption(options::OPT_fbuiltin)); + DAL.AddJoinedArg(A, Opts.getOption(options::OPT_O), "2"); + } + if (SupportsForcingFramePointer && + !DAL.hasArgNoClaim(options::OPT_fno_omit_frame_pointer)) + DAL.AddFlagArg(A, + Opts.getOption(options::OPT_fomit_frame_pointer)); + if (OptChar == '1' || OptChar == '2') + DAL.AddFlagArg(A, + Opts.getOption(options::OPT_ffunction_sections)); + } + } + break; + case 'b': + if (I + 1 != E && isdigit(OptStr[I + 1])) { + switch (OptStr[I + 1]) { + case '0': + DAL.AddFlagArg(A, Opts.getOption(options::OPT_fno_inline)); + break; + case '1': + DAL.AddFlagArg(A, Opts.getOption(options::OPT_finline_hint_functions)); + break; + case '2': + DAL.AddFlagArg(A, Opts.getOption(options::OPT_finline_functions)); + break; + } + ++I; + } + break; + case 'g': + break; + case 'i': + if (I + 1 != E && OptStr[I + 1] == '-') { + ++I; + DAL.AddFlagArg(A, Opts.getOption(options::OPT_fno_builtin)); + } else { + DAL.AddFlagArg(A, Opts.getOption(options::OPT_fbuiltin)); + } + break; + case 's': + DAL.AddJoinedArg(A, Opts.getOption(options::OPT_O), "s"); + break; + case 't': + DAL.AddJoinedArg(A, Opts.getOption(options::OPT_O), "2"); + break; + case 'y': { + bool OmitFramePointer = true; + if (I + 1 != E && OptStr[I + 1] == '-') { + OmitFramePointer = false; + ++I; + } + if (SupportsForcingFramePointer) { + if (OmitFramePointer) + DAL.AddFlagArg(A, + Opts.getOption(options::OPT_fomit_frame_pointer)); + else + DAL.AddFlagArg( + A, Opts.getOption(options::OPT_fno_omit_frame_pointer)); + } else { + // Don't warn about /Oy- in 64-bit builds (where + // SupportsForcingFramePointer is false). The flag having no effect + // there is a compiler-internal optimization, and people shouldn't have + // to special-case their build files for 64-bit clang-cl. + A->claim(); + } + break; + } + } + } +} + +static void TranslateDArg(Arg *A, llvm::opt::DerivedArgList &DAL, + const OptTable &Opts) { + assert(A->getOption().matches(options::OPT_D)); + + StringRef Val = A->getValue(); + size_t Hash = Val.find('#'); + if (Hash == StringRef::npos || Hash > Val.find('=')) { + DAL.append(A); + return; + } + + std::string NewVal = Val; + NewVal[Hash] = '='; + DAL.AddJoinedArg(A, Opts.getOption(options::OPT_D), NewVal); +} + +llvm::opt::DerivedArgList * +MSVCToolChain::TranslateArgs(const llvm::opt::DerivedArgList &Args, + StringRef BoundArch, Action::OffloadKind) const { + DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs()); + const OptTable &Opts = getDriver().getOpts(); + + // /Oy and /Oy- only has an effect under X86-32. + bool SupportsForcingFramePointer = getArch() == llvm::Triple::x86; + + // The -O[12xd] flag actually expands to several flags. We must desugar the + // flags so that options embedded can be negated. For example, the '-O2' flag + // enables '-Oy'. Expanding '-O2' into its constituent flags allows us to + // correctly handle '-O2 -Oy-' where the trailing '-Oy-' disables a single + // aspect of '-O2'. + // + // Note that this expansion logic only applies to the *last* of '[12xd]'. + + // First step is to search for the character we'd like to expand. + const char *ExpandChar = nullptr; + for (Arg *A : Args) { + if (!A->getOption().matches(options::OPT__SLASH_O)) + continue; + StringRef OptStr = A->getValue(); + for (size_t I = 0, E = OptStr.size(); I != E; ++I) { + char OptChar = OptStr[I]; + char PrevChar = I > 0 ? OptStr[I - 1] : '0'; + if (PrevChar == 'b') { + // OptChar does not expand; it's an argument to the previous char. + continue; + } + if (OptChar == '1' || OptChar == '2' || OptChar == 'x' || OptChar == 'd') + ExpandChar = OptStr.data() + I; + } + } + + for (Arg *A : Args) { + if (A->getOption().matches(options::OPT__SLASH_O)) { + // The -O flag actually takes an amalgam of other options. For example, + // '/Ogyb2' is equivalent to '/Og' '/Oy' '/Ob2'. + TranslateOptArg(A, *DAL, SupportsForcingFramePointer, ExpandChar, Opts); + } else if (A->getOption().matches(options::OPT_D)) { + // Translate -Dfoo#bar into -Dfoo=bar. + TranslateDArg(A, *DAL, Opts); + } else { + DAL->append(A); + } + } + + return DAL; +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/MSVC.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/MSVC.h new file mode 100644 index 0000000..854f88a --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/MSVC.h @@ -0,0 +1,146 @@ +//===--- MSVC.h - MSVC ToolChain Implementations ----------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_MSVC_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_MSVC_H + +#include "Cuda.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace tools { + +/// Visual studio tools. +namespace visualstudio { +class LLVM_LIBRARY_VISIBILITY Linker : public Tool { +public: + Linker(const ToolChain &TC) + : Tool("visualstudio::Linker", "linker", TC, RF_Full, + llvm::sys::WEM_UTF16) {} + + bool hasIntegratedCPP() const override { return false; } + bool isLinkJob() const override { return true; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +class LLVM_LIBRARY_VISIBILITY Compiler : public Tool { +public: + Compiler(const ToolChain &TC) + : Tool("visualstudio::Compiler", "compiler", TC, RF_Full, + llvm::sys::WEM_UTF16) {} + + bool hasIntegratedAssembler() const override { return true; } + bool hasIntegratedCPP() const override { return true; } + bool isLinkJob() const override { return false; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; + + std::unique_ptr<Command> GetCommand(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const; +}; +} // end namespace visualstudio + +} // end namespace tools + +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY MSVCToolChain : public ToolChain { +public: + MSVCToolChain(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + + llvm::opt::DerivedArgList * + TranslateArgs(const llvm::opt::DerivedArgList &Args, StringRef BoundArch, + Action::OffloadKind DeviceOffloadKind) const override; + + bool IsIntegratedAssemblerDefault() const override; + bool IsUnwindTablesDefault(const llvm::opt::ArgList &Args) const override; + bool isPICDefault() const override; + bool isPIEDefault() const override; + bool isPICDefaultForced() const override; + + enum class SubDirectoryType { + Bin, + Include, + Lib, + }; + std::string getSubDirectoryPath(SubDirectoryType Type, + llvm::Triple::ArchType TargetArch) const; + + // Convenience overload. + // Uses the current target arch. + std::string getSubDirectoryPath(SubDirectoryType Type) const { + return getSubDirectoryPath(Type, getArch()); + } + + enum class ToolsetLayout { + OlderVS, + VS2017OrNewer, + DevDivInternal, + }; + bool getIsVS2017OrNewer() const { return VSLayout == ToolsetLayout::VS2017OrNewer; } + + void + AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + void AddClangCXXStdlibIncludeArgs( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + + void AddCudaIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + + bool getWindowsSDKLibraryPath(std::string &path) const; + /// \brief Check if Universal CRT should be used if available + bool getUniversalCRTLibraryPath(std::string &path) const; + bool useUniversalCRT() const; + VersionTuple + computeMSVCVersion(const Driver *D, + const llvm::opt::ArgList &Args) const override; + + std::string ComputeEffectiveClangTriple(const llvm::opt::ArgList &Args, + types::ID InputType) const override; + SanitizerMask getSupportedSanitizers() const override; + + void printVerboseInfo(raw_ostream &OS) const override; + +protected: + void AddSystemIncludeWithSubfolder(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args, + const std::string &folder, + const Twine &subfolder1, + const Twine &subfolder2 = "", + const Twine &subfolder3 = "") const; + + Tool *buildLinker() const override; + Tool *buildAssembler() const override; +private: + std::string VCToolChainPath; + ToolsetLayout VSLayout = ToolsetLayout::OlderVS; + CudaInstallationDetector CudaInstallation; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_MSVC_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/MSVCSetupApi.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/MSVCSetupApi.h new file mode 100644 index 0000000..a890b85 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/MSVCSetupApi.h @@ -0,0 +1,514 @@ +// <copyright file="Program.cpp" company="Microsoft Corporation"> +// Copyright (C) Microsoft Corporation. All rights reserved. +// Licensed under the MIT license. +// </copyright> +// <license> +// The MIT License (MIT) +// +// Copyright (C) Microsoft Corporation. All rights reserved. +// +// Permission is hereby granted, free of charge, to any person obtaining +// a copy of this software and associated documentation files (the "Software"), +// to deal in the Software without restriction, including without limitation the +// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +// sell copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +// SOFTWARE. +// </license> + +#pragma once + +// Constants +// +#ifndef E_NOTFOUND +#define E_NOTFOUND HRESULT_FROM_WIN32(ERROR_NOT_FOUND) +#endif + +#ifndef E_FILENOTFOUND +#define E_FILENOTFOUND HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND) +#endif + +// Enumerations +// +/// <summary> +/// The state of an instance. +/// </summary> +enum InstanceState : unsigned { + /// <summary> + /// The instance state has not been determined. + /// </summary> + eNone = 0, + + /// <summary> + /// The instance installation path exists. + /// </summary> + eLocal = 1, + + /// <summary> + /// A product is registered to the instance. + /// </summary> + eRegistered = 2, + + /// <summary> + /// No reboot is required for the instance. + /// </summary> + eNoRebootRequired = 4, + + /// <summary> + /// The instance represents a complete install. + /// </summary> + eComplete = MAXUINT, +}; + +// Forward interface declarations +// +#ifndef __ISetupInstance_FWD_DEFINED__ +#define __ISetupInstance_FWD_DEFINED__ +typedef struct ISetupInstance ISetupInstance; +#endif + +#ifndef __ISetupInstance2_FWD_DEFINED__ +#define __ISetupInstance2_FWD_DEFINED__ +typedef struct ISetupInstance2 ISetupInstance2; +#endif + +#ifndef __IEnumSetupInstances_FWD_DEFINED__ +#define __IEnumSetupInstances_FWD_DEFINED__ +typedef struct IEnumSetupInstances IEnumSetupInstances; +#endif + +#ifndef __ISetupConfiguration_FWD_DEFINED__ +#define __ISetupConfiguration_FWD_DEFINED__ +typedef struct ISetupConfiguration ISetupConfiguration; +#endif + +#ifndef __ISetupConfiguration2_FWD_DEFINED__ +#define __ISetupConfiguration2_FWD_DEFINED__ +typedef struct ISetupConfiguration2 ISetupConfiguration2; +#endif + +#ifndef __ISetupPackageReference_FWD_DEFINED__ +#define __ISetupPackageReference_FWD_DEFINED__ +typedef struct ISetupPackageReference ISetupPackageReference; +#endif + +#ifndef __ISetupHelper_FWD_DEFINED__ +#define __ISetupHelper_FWD_DEFINED__ +typedef struct ISetupHelper ISetupHelper; +#endif + +// Forward class declarations +// +#ifndef __SetupConfiguration_FWD_DEFINED__ +#define __SetupConfiguration_FWD_DEFINED__ + +#ifdef __cplusplus +typedef class SetupConfiguration SetupConfiguration; +#endif + +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +// Interface definitions +// +EXTERN_C const IID IID_ISetupInstance; + +#if defined(__cplusplus) && !defined(CINTERFACE) +/// <summary> +/// Information about an instance of a product. +/// </summary> +struct DECLSPEC_UUID("B41463C3-8866-43B5-BC33-2B0676F7F42E") + DECLSPEC_NOVTABLE ISetupInstance : public IUnknown { + /// <summary> + /// Gets the instance identifier (should match the name of the parent instance + /// directory). + /// </summary> + /// <param name="pbstrInstanceId">The instance identifier.</param> + /// <returns>Standard HRESULT indicating success or failure, including + /// E_FILENOTFOUND if the instance state does not exist.</returns> + STDMETHOD(GetInstanceId)(_Out_ BSTR *pbstrInstanceId) = 0; + + /// <summary> + /// Gets the local date and time when the installation was originally + /// installed. + /// </summary> + /// <param name="pInstallDate">The local date and time when the installation + /// was originally installed.</param> + /// <returns>Standard HRESULT indicating success or failure, including + /// E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the + /// property is not defined.</returns> + STDMETHOD(GetInstallDate)(_Out_ LPFILETIME pInstallDate) = 0; + + /// <summary> + /// Gets the unique name of the installation, often indicating the branch and + /// other information used for telemetry. + /// </summary> + /// <param name="pbstrInstallationName">The unique name of the installation, + /// often indicating the branch and other information used for + /// telemetry.</param> + /// <returns>Standard HRESULT indicating success or failure, including + /// E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the + /// property is not defined.</returns> + STDMETHOD(GetInstallationName)(_Out_ BSTR *pbstrInstallationName) = 0; + + /// <summary> + /// Gets the path to the installation root of the product. + /// </summary> + /// <param name="pbstrInstallationPath">The path to the installation root of + /// the product.</param> + /// <returns>Standard HRESULT indicating success or failure, including + /// E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the + /// property is not defined.</returns> + STDMETHOD(GetInstallationPath)(_Out_ BSTR *pbstrInstallationPath) = 0; + + /// <summary> + /// Gets the version of the product installed in this instance. + /// </summary> + /// <param name="pbstrInstallationVersion">The version of the product + /// installed in this instance.</param> + /// <returns>Standard HRESULT indicating success or failure, including + /// E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the + /// property is not defined.</returns> + STDMETHOD(GetInstallationVersion)(_Out_ BSTR *pbstrInstallationVersion) = 0; + + /// <summary> + /// Gets the display name (title) of the product installed in this instance. + /// </summary> + /// <param name="lcid">The LCID for the display name.</param> + /// <param name="pbstrDisplayName">The display name (title) of the product + /// installed in this instance.</param> + /// <returns>Standard HRESULT indicating success or failure, including + /// E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the + /// property is not defined.</returns> + STDMETHOD(GetDisplayName)(_In_ LCID lcid, _Out_ BSTR *pbstrDisplayName) = 0; + + /// <summary> + /// Gets the description of the product installed in this instance. + /// </summary> + /// <param name="lcid">The LCID for the description.</param> + /// <param name="pbstrDescription">The description of the product installed in + /// this instance.</param> + /// <returns>Standard HRESULT indicating success or failure, including + /// E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the + /// property is not defined.</returns> + STDMETHOD(GetDescription)(_In_ LCID lcid, _Out_ BSTR *pbstrDescription) = 0; + + /// <summary> + /// Resolves the optional relative path to the root path of the instance. + /// </summary> + /// <param name="pwszRelativePath">A relative path within the instance to + /// resolve, or NULL to get the root path.</param> + /// <param name="pbstrAbsolutePath">The full path to the optional relative + /// path within the instance. If the relative path is NULL, the root path will + /// always terminate in a backslash.</param> + /// <returns>Standard HRESULT indicating success or failure, including + /// E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the + /// property is not defined.</returns> + STDMETHOD(ResolvePath) + (_In_opt_z_ LPCOLESTR pwszRelativePath, _Out_ BSTR *pbstrAbsolutePath) = 0; +}; +#endif + +EXTERN_C const IID IID_ISetupInstance2; + +#if defined(__cplusplus) && !defined(CINTERFACE) +/// <summary> +/// Information about an instance of a product. +/// </summary> +struct DECLSPEC_UUID("89143C9A-05AF-49B0-B717-72E218A2185C") + DECLSPEC_NOVTABLE ISetupInstance2 : public ISetupInstance { + /// <summary> + /// Gets the state of the instance. + /// </summary> + /// <param name="pState">The state of the instance.</param> + /// <returns>Standard HRESULT indicating success or failure, including + /// E_FILENOTFOUND if the instance state does not exist.</returns> + STDMETHOD(GetState)(_Out_ InstanceState *pState) = 0; + + /// <summary> + /// Gets an array of package references registered to the instance. + /// </summary> + /// <param name="ppsaPackages">Pointer to an array of <see + /// cref="ISetupPackageReference"/>.</param> + /// <returns>Standard HRESULT indicating success or failure, including + /// E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the + /// packages property is not defined.</returns> + STDMETHOD(GetPackages)(_Out_ LPSAFEARRAY *ppsaPackages) = 0; + + /// <summary> + /// Gets a pointer to the <see cref="ISetupPackageReference"/> that represents + /// the registered product. + /// </summary> + /// <param name="ppPackage">Pointer to an instance of <see + /// cref="ISetupPackageReference"/>. This may be NULL if <see + /// cref="GetState"/> does not return <see cref="eComplete"/>.</param> + /// <returns>Standard HRESULT indicating success or failure, including + /// E_FILENOTFOUND if the instance state does not exist and E_NOTFOUND if the + /// packages property is not defined.</returns> + STDMETHOD(GetProduct) + (_Outptr_result_maybenull_ ISetupPackageReference **ppPackage) = 0; + + /// <summary> + /// Gets the relative path to the product application, if available. + /// </summary> + /// <param name="pbstrProductPath">The relative path to the product + /// application, if available.</param> + /// <returns>Standard HRESULT indicating success or failure, including + /// E_FILENOTFOUND if the instance state does not exist.</returns> + STDMETHOD(GetProductPath) + (_Outptr_result_maybenull_ BSTR *pbstrProductPath) = 0; +}; +#endif + +EXTERN_C const IID IID_IEnumSetupInstances; + +#if defined(__cplusplus) && !defined(CINTERFACE) +/// <summary> +/// A enumerator of installed <see cref="ISetupInstance"/> objects. +/// </summary> +struct DECLSPEC_UUID("6380BCFF-41D3-4B2E-8B2E-BF8A6810C848") + DECLSPEC_NOVTABLE IEnumSetupInstances : public IUnknown { + /// <summary> + /// Retrieves the next set of product instances in the enumeration sequence. + /// </summary> + /// <param name="celt">The number of product instances to retrieve.</param> + /// <param name="rgelt">A pointer to an array of <see + /// cref="ISetupInstance"/>.</param> + /// <param name="pceltFetched">A pointer to the number of product instances + /// retrieved. If celt is 1 this parameter may be NULL.</param> + /// <returns>S_OK if the number of elements were fetched, S_FALSE if nothing + /// was fetched (at end of enumeration), E_INVALIDARG if celt is greater than + /// 1 and pceltFetched is NULL, or E_OUTOFMEMORY if an <see + /// cref="ISetupInstance"/> could not be allocated.</returns> + STDMETHOD(Next) + (_In_ ULONG celt, _Out_writes_to_(celt, *pceltFetched) ISetupInstance **rgelt, + _Out_opt_ _Deref_out_range_(0, celt) ULONG *pceltFetched) = 0; + + /// <summary> + /// Skips the next set of product instances in the enumeration sequence. + /// </summary> + /// <param name="celt">The number of product instances to skip.</param> + /// <returns>S_OK if the number of elements could be skipped; otherwise, + /// S_FALSE;</returns> + STDMETHOD(Skip)(_In_ ULONG celt) = 0; + + /// <summary> + /// Resets the enumeration sequence to the beginning. + /// </summary> + /// <returns>Always returns S_OK;</returns> + STDMETHOD(Reset)(void) = 0; + + /// <summary> + /// Creates a new enumeration object in the same state as the current + /// enumeration object: the new object points to the same place in the + /// enumeration sequence. + /// </summary> + /// <param name="ppenum">A pointer to a pointer to a new <see + /// cref="IEnumSetupInstances"/> interface. If the method fails, this + /// parameter is undefined.</param> + /// <returns>S_OK if a clone was returned; otherwise, E_OUTOFMEMORY.</returns> + STDMETHOD(Clone)(_Deref_out_opt_ IEnumSetupInstances **ppenum) = 0; +}; +#endif + +EXTERN_C const IID IID_ISetupConfiguration; + +#if defined(__cplusplus) && !defined(CINTERFACE) +/// <summary> +/// Gets information about product instances set up on the machine. +/// </summary> +struct DECLSPEC_UUID("42843719-DB4C-46C2-8E7C-64F1816EFD5B") + DECLSPEC_NOVTABLE ISetupConfiguration : public IUnknown { + /// <summary> + /// Enumerates all completed product instances installed. + /// </summary> + /// <param name="ppEnumInstances">An enumeration of completed, installed + /// product instances.</param> + /// <returns>Standard HRESULT indicating success or failure.</returns> + STDMETHOD(EnumInstances)(_Out_ IEnumSetupInstances **ppEnumInstances) = 0; + + /// <summary> + /// Gets the instance for the current process path. + /// </summary> + /// <param name="ppInstance">The instance for the current process + /// path.</param> + /// <returns>The instance for the current process path, or E_NOTFOUND if not + /// found.</returns> + STDMETHOD(GetInstanceForCurrentProcess) + (_Out_ ISetupInstance **ppInstance) = 0; + + /// <summary> + /// Gets the instance for the given path. + /// </summary> + /// <param name="ppInstance">The instance for the given path.</param> + /// <returns>The instance for the given path, or E_NOTFOUND if not + /// found.</returns> + STDMETHOD(GetInstanceForPath) + (_In_z_ LPCWSTR wzPath, _Out_ ISetupInstance **ppInstance) = 0; +}; +#endif + +EXTERN_C const IID IID_ISetupConfiguration2; + +#if defined(__cplusplus) && !defined(CINTERFACE) +/// <summary> +/// Gets information about product instances. +/// </summary> +struct DECLSPEC_UUID("26AAB78C-4A60-49D6-AF3B-3C35BC93365D") + DECLSPEC_NOVTABLE ISetupConfiguration2 : public ISetupConfiguration { + /// <summary> + /// Enumerates all product instances. + /// </summary> + /// <param name="ppEnumInstances">An enumeration of all product + /// instances.</param> + /// <returns>Standard HRESULT indicating success or failure.</returns> + STDMETHOD(EnumAllInstances)(_Out_ IEnumSetupInstances **ppEnumInstances) = 0; +}; +#endif + +EXTERN_C const IID IID_ISetupPackageReference; + +#if defined(__cplusplus) && !defined(CINTERFACE) +/// <summary> +/// A reference to a package. +/// </summary> +struct DECLSPEC_UUID("da8d8a16-b2b6-4487-a2f1-594ccccd6bf5") + DECLSPEC_NOVTABLE ISetupPackageReference : public IUnknown { + /// <summary> + /// Gets the general package identifier. + /// </summary> + /// <param name="pbstrId">The general package identifier.</param> + /// <returns>Standard HRESULT indicating success or failure.</returns> + STDMETHOD(GetId)(_Out_ BSTR *pbstrId) = 0; + + /// <summary> + /// Gets the version of the package. + /// </summary> + /// <param name="pbstrVersion">The version of the package.</param> + /// <returns>Standard HRESULT indicating success or failure.</returns> + STDMETHOD(GetVersion)(_Out_ BSTR *pbstrVersion) = 0; + + /// <summary> + /// Gets the target process architecture of the package. + /// </summary> + /// <param name="pbstrChip">The target process architecture of the + /// package.</param> + /// <returns>Standard HRESULT indicating success or failure.</returns> + STDMETHOD(GetChip)(_Out_ BSTR *pbstrChip) = 0; + + /// <summary> + /// Gets the language and optional region identifier. + /// </summary> + /// <param name="pbstrLanguage">The language and optional region + /// identifier.</param> + /// <returns>Standard HRESULT indicating success or failure.</returns> + STDMETHOD(GetLanguage)(_Out_ BSTR *pbstrLanguage) = 0; + + /// <summary> + /// Gets the build branch of the package. + /// </summary> + /// <param name="pbstrBranch">The build branch of the package.</param> + /// <returns>Standard HRESULT indicating success or failure.</returns> + STDMETHOD(GetBranch)(_Out_ BSTR *pbstrBranch) = 0; + + /// <summary> + /// Gets the type of the package. + /// </summary> + /// <param name="pbstrType">The type of the package.</param> + /// <returns>Standard HRESULT indicating success or failure.</returns> + STDMETHOD(GetType)(_Out_ BSTR *pbstrType) = 0; + + /// <summary> + /// Gets the unique identifier consisting of all defined tokens. + /// </summary> + /// <param name="pbstrUniqueId">The unique identifier consisting of all + /// defined tokens.</param> + /// <returns>Standard HRESULT indicating success or failure, including + /// E_UNEXPECTED if no Id was defined (required).</returns> + STDMETHOD(GetUniqueId)(_Out_ BSTR *pbstrUniqueId) = 0; +}; +#endif + +EXTERN_C const IID IID_ISetupHelper; + +#if defined(__cplusplus) && !defined(CINTERFACE) +/// <summary> +/// Helper functions. +/// </summary> +/// <remarks> +/// You can query for this interface from the <see cref="SetupConfiguration"/> +/// class. +/// </remarks> +struct DECLSPEC_UUID("42b21b78-6192-463e-87bf-d577838f1d5c") + DECLSPEC_NOVTABLE ISetupHelper : public IUnknown { + /// <summary> + /// Parses a dotted quad version string into a 64-bit unsigned integer. + /// </summary> + /// <param name="pwszVersion">The dotted quad version string to parse, e.g. + /// 1.2.3.4.</param> + /// <param name="pullVersion">A 64-bit unsigned integer representing the + /// version. You can compare this to other versions.</param> + /// <returns>Standard HRESULT indicating success or failure.</returns> + STDMETHOD(ParseVersion) + (_In_ LPCOLESTR pwszVersion, _Out_ PULONGLONG pullVersion) = 0; + + /// <summary> + /// Parses a dotted quad version string into a 64-bit unsigned integer. + /// </summary> + /// <param name="pwszVersionRange">The string containing 1 or 2 dotted quad + /// version strings to parse, e.g. [1.0,) that means 1.0.0.0 or newer.</param> + /// <param name="pullMinVersion">A 64-bit unsigned integer representing the + /// minimum version, which may be 0. You can compare this to other + /// versions.</param> + /// <param name="pullMaxVersion">A 64-bit unsigned integer representing the + /// maximum version, which may be MAXULONGLONG. You can compare this to other + /// versions.</param> + /// <returns>Standard HRESULT indicating success or failure.</returns> + STDMETHOD(ParseVersionRange) + (_In_ LPCOLESTR pwszVersionRange, _Out_ PULONGLONG pullMinVersion, + _Out_ PULONGLONG pullMaxVersion) = 0; +}; +#endif + +// Class declarations +// +EXTERN_C const CLSID CLSID_SetupConfiguration; + +#ifdef __cplusplus +/// <summary> +/// This class implements <see cref="ISetupConfiguration"/>, <see +/// cref="ISetupConfiguration2"/>, and <see cref="ISetupHelper"/>. +/// </summary> +class DECLSPEC_UUID("177F0C4A-1CD3-4DE7-A32C-71DBBB9FA36D") SetupConfiguration; +#endif + +// Function declarations +// +/// <summary> +/// Gets an <see cref="ISetupConfiguration"/> that provides information about +/// product instances installed on the machine. +/// </summary> +/// <param name="ppConfiguration">The <see cref="ISetupConfiguration"/> that +/// provides information about product instances installed on the +/// machine.</param> +/// <param name="pReserved">Reserved for future use.</param> +/// <returns>Standard HRESULT indicating success or failure.</returns> +STDMETHODIMP GetSetupConfiguration(_Out_ ISetupConfiguration **ppConfiguration, + _Reserved_ LPVOID pReserved); + +#ifdef __cplusplus +} +#endif diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/MinGW.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/MinGW.cpp new file mode 100644 index 0000000..632b76d --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/MinGW.cpp @@ -0,0 +1,473 @@ +//===--- MinGW.cpp - MinGWToolChain Implementation ------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "MinGW.h" +#include "InputInfo.h" +#include "CommonArgs.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Options.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Support/FileSystem.h" +#include "llvm/Support/Path.h" +#include <system_error> + +using namespace clang::diag; +using namespace clang::driver; +using namespace clang; +using namespace llvm::opt; + +/// MinGW Tools +void tools::MinGW::Assembler::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + claimNoWarnArgs(Args); + ArgStringList CmdArgs; + + if (getToolChain().getArch() == llvm::Triple::x86) { + CmdArgs.push_back("--32"); + } else if (getToolChain().getArch() == llvm::Triple::x86_64) { + CmdArgs.push_back("--64"); + } + + Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + for (const auto &II : Inputs) + CmdArgs.push_back(II.getFilename()); + + const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as")); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); + + if (Args.hasArg(options::OPT_gsplit_dwarf)) + SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output, + SplitDebugName(Args, Inputs[0])); +} + +void tools::MinGW::Linker::AddLibGCC(const ArgList &Args, + ArgStringList &CmdArgs) const { + if (Args.hasArg(options::OPT_mthreads)) + CmdArgs.push_back("-lmingwthrd"); + CmdArgs.push_back("-lmingw32"); + + // Make use of compiler-rt if --rtlib option is used + ToolChain::RuntimeLibType RLT = getToolChain().GetRuntimeLibType(Args); + if (RLT == ToolChain::RLT_Libgcc) { + bool Static = Args.hasArg(options::OPT_static_libgcc) || + Args.hasArg(options::OPT_static); + bool Shared = Args.hasArg(options::OPT_shared); + bool CXX = getToolChain().getDriver().CCCIsCXX(); + + if (Static || (!CXX && !Shared)) { + CmdArgs.push_back("-lgcc"); + CmdArgs.push_back("-lgcc_eh"); + } else { + CmdArgs.push_back("-lgcc_s"); + CmdArgs.push_back("-lgcc"); + } + } else { + AddRunTimeLibs(getToolChain(), getToolChain().getDriver(), CmdArgs, Args); + } + + CmdArgs.push_back("-lmoldname"); + CmdArgs.push_back("-lmingwex"); + CmdArgs.push_back("-lmsvcrt"); +} + +void tools::MinGW::Linker::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + const ToolChain &TC = getToolChain(); + const Driver &D = TC.getDriver(); + // const SanitizerArgs &Sanitize = TC.getSanitizerArgs(); + + ArgStringList CmdArgs; + + // Silence warning for "clang -g foo.o -o foo" + Args.ClaimAllArgs(options::OPT_g_Group); + // and "clang -emit-llvm foo.o -o foo" + Args.ClaimAllArgs(options::OPT_emit_llvm); + // and for "clang -w foo.o -o foo". Other warning options are already + // handled somewhere else. + Args.ClaimAllArgs(options::OPT_w); + + StringRef LinkerName = Args.getLastArgValue(options::OPT_fuse_ld_EQ, "ld"); + if (LinkerName.equals_lower("lld")) { + CmdArgs.push_back("-flavor"); + CmdArgs.push_back("gnu"); + } else if (!LinkerName.equals_lower("ld")) { + D.Diag(diag::err_drv_unsupported_linker) << LinkerName; + } + + if (!D.SysRoot.empty()) + CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); + + if (Args.hasArg(options::OPT_s)) + CmdArgs.push_back("-s"); + + CmdArgs.push_back("-m"); + if (TC.getArch() == llvm::Triple::x86) + CmdArgs.push_back("i386pe"); + if (TC.getArch() == llvm::Triple::x86_64) + CmdArgs.push_back("i386pep"); + if (TC.getArch() == llvm::Triple::arm) + CmdArgs.push_back("thumb2pe"); + + if (Args.hasArg(options::OPT_mwindows)) { + CmdArgs.push_back("--subsystem"); + CmdArgs.push_back("windows"); + } else if (Args.hasArg(options::OPT_mconsole)) { + CmdArgs.push_back("--subsystem"); + CmdArgs.push_back("console"); + } + + if (Args.hasArg(options::OPT_static)) + CmdArgs.push_back("-Bstatic"); + else { + if (Args.hasArg(options::OPT_mdll)) + CmdArgs.push_back("--dll"); + else if (Args.hasArg(options::OPT_shared)) + CmdArgs.push_back("--shared"); + CmdArgs.push_back("-Bdynamic"); + if (Args.hasArg(options::OPT_mdll) || Args.hasArg(options::OPT_shared)) { + CmdArgs.push_back("-e"); + if (TC.getArch() == llvm::Triple::x86) + CmdArgs.push_back("_DllMainCRTStartup@12"); + else + CmdArgs.push_back("DllMainCRTStartup"); + CmdArgs.push_back("--enable-auto-image-base"); + } + } + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + Args.AddAllArgs(CmdArgs, options::OPT_e); + // FIXME: add -N, -n flags + Args.AddLastArg(CmdArgs, options::OPT_r); + Args.AddLastArg(CmdArgs, options::OPT_s); + Args.AddLastArg(CmdArgs, options::OPT_t); + Args.AddAllArgs(CmdArgs, options::OPT_u_Group); + Args.AddLastArg(CmdArgs, options::OPT_Z_Flag); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_mdll)) { + CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("dllcrt2.o"))); + } else { + if (Args.hasArg(options::OPT_municode)) + CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crt2u.o"))); + else + CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crt2.o"))); + } + if (Args.hasArg(options::OPT_pg)) + CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("gcrt2.o"))); + CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crtbegin.o"))); + } + + Args.AddAllArgs(CmdArgs, options::OPT_L); + TC.AddFilePathLibArgs(Args, CmdArgs); + AddLinkerInputs(TC, Inputs, Args, CmdArgs, JA); + + // TODO: Add ASan stuff here + + // TODO: Add profile stuff here + + if (D.CCCIsCXX() && + !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { + bool OnlyLibstdcxxStatic = Args.hasArg(options::OPT_static_libstdcxx) && + !Args.hasArg(options::OPT_static); + if (OnlyLibstdcxxStatic) + CmdArgs.push_back("-Bstatic"); + TC.AddCXXStdlibLibArgs(Args, CmdArgs); + if (OnlyLibstdcxxStatic) + CmdArgs.push_back("-Bdynamic"); + } + + if (!Args.hasArg(options::OPT_nostdlib)) { + if (!Args.hasArg(options::OPT_nodefaultlibs)) { + if (Args.hasArg(options::OPT_static)) + CmdArgs.push_back("--start-group"); + + if (Args.hasArg(options::OPT_fstack_protector) || + Args.hasArg(options::OPT_fstack_protector_strong) || + Args.hasArg(options::OPT_fstack_protector_all)) { + CmdArgs.push_back("-lssp_nonshared"); + CmdArgs.push_back("-lssp"); + } + if (Args.hasArg(options::OPT_fopenmp)) + CmdArgs.push_back("-lgomp"); + + AddLibGCC(Args, CmdArgs); + + if (Args.hasArg(options::OPT_pg)) + CmdArgs.push_back("-lgmon"); + + if (Args.hasArg(options::OPT_pthread)) + CmdArgs.push_back("-lpthread"); + + // add system libraries + if (Args.hasArg(options::OPT_mwindows)) { + CmdArgs.push_back("-lgdi32"); + CmdArgs.push_back("-lcomdlg32"); + } + CmdArgs.push_back("-ladvapi32"); + CmdArgs.push_back("-lshell32"); + CmdArgs.push_back("-luser32"); + CmdArgs.push_back("-lkernel32"); + + if (Args.hasArg(options::OPT_static)) + CmdArgs.push_back("--end-group"); + else if (!LinkerName.equals_lower("lld")) + AddLibGCC(Args, CmdArgs); + } + + if (!Args.hasArg(options::OPT_nostartfiles)) { + // Add crtfastmath.o if available and fast math is enabled. + TC.AddFastMathRuntimeIfAvailable(Args, CmdArgs); + + CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crtend.o"))); + } + } + const char *Exec = Args.MakeArgString(TC.GetProgramPath(LinkerName.data())); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +// Simplified from Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple. +static bool findGccVersion(StringRef LibDir, std::string &GccLibDir, + std::string &Ver) { + auto Version = toolchains::Generic_GCC::GCCVersion::Parse("0.0.0"); + std::error_code EC; + for (llvm::sys::fs::directory_iterator LI(LibDir, EC), LE; !EC && LI != LE; + LI = LI.increment(EC)) { + StringRef VersionText = llvm::sys::path::filename(LI->path()); + auto CandidateVersion = + toolchains::Generic_GCC::GCCVersion::Parse(VersionText); + if (CandidateVersion.Major == -1) + continue; + if (CandidateVersion <= Version) + continue; + Ver = VersionText; + GccLibDir = LI->path(); + } + return Ver.size(); +} + +void toolchains::MinGW::findGccLibDir() { + llvm::SmallVector<llvm::SmallString<32>, 2> Archs; + Archs.emplace_back(getTriple().getArchName()); + Archs[0] += "-w64-mingw32"; + Archs.emplace_back("mingw32"); + Arch = Archs[0].str(); + // lib: Arch Linux, Ubuntu, Windows + // lib64: openSUSE Linux + for (StringRef CandidateLib : {"lib", "lib64"}) { + for (StringRef CandidateArch : Archs) { + llvm::SmallString<1024> LibDir(Base); + llvm::sys::path::append(LibDir, CandidateLib, "gcc", CandidateArch); + if (findGccVersion(LibDir, GccLibDir, Ver)) { + Arch = CandidateArch; + return; + } + } + } +} + +llvm::ErrorOr<std::string> toolchains::MinGW::findGcc() { + llvm::SmallVector<llvm::SmallString<32>, 2> Gccs; + Gccs.emplace_back(getTriple().getArchName()); + Gccs[0] += "-w64-mingw32-gcc"; + Gccs.emplace_back("mingw32-gcc"); + // Please do not add "gcc" here + for (StringRef CandidateGcc : Gccs) + if (llvm::ErrorOr<std::string> GPPName = llvm::sys::findProgramByName(CandidateGcc)) + return GPPName; + return make_error_code(std::errc::no_such_file_or_directory); +} + +toolchains::MinGW::MinGW(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : ToolChain(D, Triple, Args), CudaInstallation(D, Triple, Args) { + getProgramPaths().push_back(getDriver().getInstalledDir()); + + if (getDriver().SysRoot.size()) + Base = getDriver().SysRoot; + else if (llvm::ErrorOr<std::string> GPPName = findGcc()) + Base = llvm::sys::path::parent_path( + llvm::sys::path::parent_path(GPPName.get())); + else + Base = llvm::sys::path::parent_path(getDriver().getInstalledDir()); + + Base += llvm::sys::path::get_separator(); + findGccLibDir(); + // GccLibDir must precede Base/lib so that the + // correct crtbegin.o ,cetend.o would be found. + getFilePaths().push_back(GccLibDir); + getFilePaths().push_back( + (Base + Arch + llvm::sys::path::get_separator() + "lib").str()); + getFilePaths().push_back(Base + "lib"); + // openSUSE + getFilePaths().push_back(Base + Arch + "/sys-root/mingw/lib"); +} + +bool toolchains::MinGW::IsIntegratedAssemblerDefault() const { return true; } + +Tool *toolchains::MinGW::getTool(Action::ActionClass AC) const { + switch (AC) { + case Action::PreprocessJobClass: + if (!Preprocessor) + Preprocessor.reset(new tools::gcc::Preprocessor(*this)); + return Preprocessor.get(); + case Action::CompileJobClass: + if (!Compiler) + Compiler.reset(new tools::gcc::Compiler(*this)); + return Compiler.get(); + default: + return ToolChain::getTool(AC); + } +} + +Tool *toolchains::MinGW::buildAssembler() const { + return new tools::MinGW::Assembler(*this); +} + +Tool *toolchains::MinGW::buildLinker() const { + return new tools::MinGW::Linker(*this); +} + +bool toolchains::MinGW::IsUnwindTablesDefault(const ArgList &Args) const { + return getArch() == llvm::Triple::x86_64; +} + +bool toolchains::MinGW::isPICDefault() const { + return getArch() == llvm::Triple::x86_64; +} + +bool toolchains::MinGW::isPIEDefault() const { return false; } + +bool toolchains::MinGW::isPICDefaultForced() const { + return getArch() == llvm::Triple::x86_64; +} + +bool toolchains::MinGW::UseSEHExceptions() const { + return getArch() == llvm::Triple::x86_64; +} + +void toolchains::MinGW::AddCudaIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + CudaInstallation.AddCudaIncludeArgs(DriverArgs, CC1Args); +} + +void toolchains::MinGW::printVerboseInfo(raw_ostream &OS) const { + CudaInstallation.print(OS); +} + +// Include directories for various hosts: + +// Windows, mingw.org +// c:\mingw\lib\gcc\mingw32\4.8.1\include\c++ +// c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\mingw32 +// c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\backward +// c:\mingw\include +// c:\mingw\mingw32\include + +// Windows, mingw-w64 mingw-builds +// c:\mingw32\i686-w64-mingw32\include +// c:\mingw32\i686-w64-mingw32\include\c++ +// c:\mingw32\i686-w64-mingw32\include\c++\i686-w64-mingw32 +// c:\mingw32\i686-w64-mingw32\include\c++\backward + +// Windows, mingw-w64 msys2 +// c:\msys64\mingw32\include +// c:\msys64\mingw32\i686-w64-mingw32\include +// c:\msys64\mingw32\include\c++\4.9.2 +// c:\msys64\mingw32\include\c++\4.9.2\i686-w64-mingw32 +// c:\msys64\mingw32\include\c++\4.9.2\backward + +// openSUSE +// /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/include/c++ +// /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/include/c++/x86_64-w64-mingw32 +// /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/include/c++/backward +// /usr/x86_64-w64-mingw32/sys-root/mingw/include + +// Arch Linux +// /usr/i686-w64-mingw32/include/c++/5.1.0 +// /usr/i686-w64-mingw32/include/c++/5.1.0/i686-w64-mingw32 +// /usr/i686-w64-mingw32/include/c++/5.1.0/backward +// /usr/i686-w64-mingw32/include + +// Ubuntu +// /usr/include/c++/4.8 +// /usr/include/c++/4.8/x86_64-w64-mingw32 +// /usr/include/c++/4.8/backward +// /usr/x86_64-w64-mingw32/include + +void toolchains::MinGW::AddClangSystemIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + if (DriverArgs.hasArg(options::OPT_nostdinc)) + return; + + if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) { + SmallString<1024> P(getDriver().ResourceDir); + llvm::sys::path::append(P, "include"); + addSystemInclude(DriverArgs, CC1Args, P.str()); + } + + if (DriverArgs.hasArg(options::OPT_nostdlibinc)) + return; + + if (GetRuntimeLibType(DriverArgs) == ToolChain::RLT_Libgcc) { + // openSUSE + addSystemInclude(DriverArgs, CC1Args, + Base + Arch + "/sys-root/mingw/include"); + } + + addSystemInclude(DriverArgs, CC1Args, + Base + Arch + llvm::sys::path::get_separator() + "include"); + addSystemInclude(DriverArgs, CC1Args, Base + "include"); +} + +void toolchains::MinGW::AddClangCXXStdlibIncludeArgs( + const ArgList &DriverArgs, ArgStringList &CC1Args) const { + if (DriverArgs.hasArg(options::OPT_nostdlibinc) || + DriverArgs.hasArg(options::OPT_nostdincxx)) + return; + + switch (GetCXXStdlibType(DriverArgs)) { + case ToolChain::CST_Libcxx: + addSystemInclude(DriverArgs, CC1Args, + Base + "include" + llvm::sys::path::get_separator() + + "c++" + llvm::sys::path::get_separator() + "v1"); + break; + + case ToolChain::CST_Libstdcxx: + llvm::SmallVector<llvm::SmallString<1024>, 4> CppIncludeBases; + CppIncludeBases.emplace_back(Base); + llvm::sys::path::append(CppIncludeBases[0], Arch, "include", "c++"); + CppIncludeBases.emplace_back(Base); + llvm::sys::path::append(CppIncludeBases[1], Arch, "include", "c++", Ver); + CppIncludeBases.emplace_back(Base); + llvm::sys::path::append(CppIncludeBases[2], "include", "c++", Ver); + CppIncludeBases.emplace_back(GccLibDir); + llvm::sys::path::append(CppIncludeBases[3], "include", "c++"); + for (auto &CppIncludeBase : CppIncludeBases) { + addSystemInclude(DriverArgs, CC1Args, CppIncludeBase); + CppIncludeBase += llvm::sys::path::get_separator(); + addSystemInclude(DriverArgs, CC1Args, CppIncludeBase + Arch); + addSystemInclude(DriverArgs, CC1Args, CppIncludeBase + "backward"); + } + break; + } +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/MinGW.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/MinGW.h new file mode 100644 index 0000000..9b3d7c5 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/MinGW.h @@ -0,0 +1,103 @@ +//===--- MinGW.h - MinGW ToolChain Implementations --------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_MINGW_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_MINGW_H + +#include "Cuda.h" +#include "Gnu.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace tools { + +/// MinGW -- Directly call GNU Binutils assembler and linker +namespace MinGW { +class LLVM_LIBRARY_VISIBILITY Assembler : public Tool { +public: + Assembler(const ToolChain &TC) : Tool("MinGW::Assemble", "assembler", TC) {} + + bool hasIntegratedCPP() const override { return false; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +class LLVM_LIBRARY_VISIBILITY Linker : public Tool { +public: + Linker(const ToolChain &TC) : Tool("MinGW::Linker", "linker", TC) {} + + bool hasIntegratedCPP() const override { return false; } + bool isLinkJob() const override { return true; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; + +private: + void AddLibGCC(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const; +}; +} // end namespace MinGW +} // end namespace tools + +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY MinGW : public ToolChain { +public: + MinGW(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + + bool IsIntegratedAssemblerDefault() const override; + bool IsUnwindTablesDefault(const llvm::opt::ArgList &Args) const override; + bool isPICDefault() const override; + bool isPIEDefault() const override; + bool isPICDefaultForced() const override; + bool UseSEHExceptions() const; + + void + AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + void AddClangCXXStdlibIncludeArgs( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + + void AddCudaIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + + void printVerboseInfo(raw_ostream &OS) const override; + +protected: + Tool *getTool(Action::ActionClass AC) const override; + Tool *buildLinker() const override; + Tool *buildAssembler() const override; + +private: + CudaInstallationDetector CudaInstallation; + + std::string Base; + std::string GccLibDir; + std::string Ver; + std::string Arch; + mutable std::unique_ptr<tools::gcc::Preprocessor> Preprocessor; + mutable std::unique_ptr<tools::gcc::Compiler> Compiler; + void findGccLibDir(); + llvm::ErrorOr<std::string> findGcc(); +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_MINGW_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Minix.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Minix.cpp new file mode 100644 index 0000000..2e8939c --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Minix.cpp @@ -0,0 +1,109 @@ +//===--- Minix.cpp - Minix ToolChain Implementations ------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "Minix.h" +#include "InputInfo.h" +#include "CommonArgs.h" +#include "clang/Basic/VirtualFileSystem.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/Options.h" +#include "llvm/Option/ArgList.h" + +using namespace clang::driver; +using namespace clang; +using namespace llvm::opt; + +void tools::minix::Assembler::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + claimNoWarnArgs(Args); + ArgStringList CmdArgs; + + Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + for (const auto &II : Inputs) + CmdArgs.push_back(II.getFilename()); + + const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as")); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +void tools::minix::Linker::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + const Driver &D = getToolChain().getDriver(); + ArgStringList CmdArgs; + + if (Output.isFilename()) { + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + } else { + assert(Output.isNothing() && "Invalid output."); + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crt1.o"))); + CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crti.o"))); + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o"))); + CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crtn.o"))); + } + + Args.AddAllArgs(CmdArgs, + {options::OPT_L, options::OPT_T_Group, options::OPT_e}); + + AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); + + getToolChain().addProfileRTLibs(Args, CmdArgs); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { + if (D.CCCIsCXX()) { + getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs); + CmdArgs.push_back("-lm"); + } + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + if (Args.hasArg(options::OPT_pthread)) + CmdArgs.push_back("-lpthread"); + CmdArgs.push_back("-lc"); + CmdArgs.push_back("-lCompilerRT-Generic"); + CmdArgs.push_back("-L/usr/pkg/compiler-rt/lib"); + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtend.o"))); + } + + const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath()); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +/// Minix - Minix tool chain which can call as(1) and ld(1) directly. + +toolchains::Minix::Minix(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : Generic_ELF(D, Triple, Args) { + getFilePaths().push_back(getDriver().Dir + "/../lib"); + getFilePaths().push_back("/usr/lib"); +} + +Tool *toolchains::Minix::buildAssembler() const { + return new tools::minix::Assembler(*this); +} + +Tool *toolchains::Minix::buildLinker() const { + return new tools::minix::Linker(*this); +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Minix.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Minix.h new file mode 100644 index 0000000..6fd7185 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Minix.h @@ -0,0 +1,66 @@ +//===--- Minix.h - Minix ToolChain Implementations --------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_MINIX_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_MINIX_H + +#include "Gnu.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace tools { +/// minix -- Directly call GNU Binutils assembler and linker +namespace minix { +class LLVM_LIBRARY_VISIBILITY Assembler : public GnuTool { +public: + Assembler(const ToolChain &TC) + : GnuTool("minix::Assembler", "assembler", TC) {} + + bool hasIntegratedCPP() const override { return false; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +class LLVM_LIBRARY_VISIBILITY Linker : public GnuTool { +public: + Linker(const ToolChain &TC) : GnuTool("minix::Linker", "linker", TC) {} + + bool hasIntegratedCPP() const override { return false; } + bool isLinkJob() const override { return true; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; +} // end namespace minix +} // end namespace tools + +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY Minix : public Generic_ELF { +public: + Minix(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + +protected: + Tool *buildAssembler() const override; + Tool *buildLinker() const override; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_MINIX_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/MipsLinux.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/MipsLinux.cpp new file mode 100644 index 0000000..b394208 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/MipsLinux.cpp @@ -0,0 +1,128 @@ +//===--- Mips.cpp - Mips ToolChain Implementations --------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "MipsLinux.h" +#include "Arch/Mips.h" +#include "CommonArgs.h" +#include "clang/Config/config.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Options.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Support/FileSystem.h" +#include "llvm/Support/Path.h" + +using namespace clang::driver; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +/// Mips Toolchain +MipsLLVMToolChain::MipsLLVMToolChain(const Driver &D, + const llvm::Triple &Triple, + const ArgList &Args) + : Linux(D, Triple, Args) { + // Select the correct multilib according to the given arguments. + DetectedMultilibs Result; + findMIPSMultilibs(D, Triple, "", Args, Result); + Multilibs = Result.Multilibs; + SelectedMultilib = Result.SelectedMultilib; + + // Find out the library suffix based on the ABI. + LibSuffix = tools::mips::getMipsABILibSuffix(Args, Triple); + getFilePaths().clear(); + getFilePaths().push_back(computeSysRoot() + "/usr/lib" + LibSuffix); +} + +void MipsLLVMToolChain::AddClangSystemIncludeArgs( + const ArgList &DriverArgs, ArgStringList &CC1Args) const { + if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc)) + return; + + const Driver &D = getDriver(); + + if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) { + SmallString<128> P(D.ResourceDir); + llvm::sys::path::append(P, "include"); + addSystemInclude(DriverArgs, CC1Args, P); + } + + if (DriverArgs.hasArg(options::OPT_nostdlibinc)) + return; + + const auto &Callback = Multilibs.includeDirsCallback(); + if (Callback) { + for (const auto &Path : Callback(SelectedMultilib)) + addExternCSystemIncludeIfExists(DriverArgs, CC1Args, + D.getInstalledDir() + Path); + } +} + +Tool *MipsLLVMToolChain::buildLinker() const { + return new tools::gnutools::Linker(*this); +} + +std::string MipsLLVMToolChain::computeSysRoot() const { + if (!getDriver().SysRoot.empty()) + return getDriver().SysRoot + SelectedMultilib.osSuffix(); + + const std::string InstalledDir(getDriver().getInstalledDir()); + std::string SysRootPath = + InstalledDir + "/../sysroot" + SelectedMultilib.osSuffix(); + if (llvm::sys::fs::exists(SysRootPath)) + return SysRootPath; + + return std::string(); +} + +ToolChain::CXXStdlibType +MipsLLVMToolChain::GetCXXStdlibType(const ArgList &Args) const { + Arg *A = Args.getLastArg(options::OPT_stdlib_EQ); + if (A) { + StringRef Value = A->getValue(); + if (Value != "libc++") + getDriver().Diag(clang::diag::err_drv_invalid_stdlib_name) + << A->getAsString(Args); + } + + return ToolChain::CST_Libcxx; +} + +std::string MipsLLVMToolChain::findLibCxxIncludePath() const { + if (const auto &Callback = Multilibs.includeDirsCallback()) { + for (std::string Path : Callback(SelectedMultilib)) { + Path = getDriver().getInstalledDir() + Path + "/c++/v1"; + if (llvm::sys::fs::exists(Path)) { + return Path; + } + } + } + return ""; +} + +void MipsLLVMToolChain::AddCXXStdlibLibArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + assert((GetCXXStdlibType(Args) == ToolChain::CST_Libcxx) && + "Only -lc++ (aka libxx) is supported in this toolchain."); + + CmdArgs.push_back("-lc++"); + CmdArgs.push_back("-lc++abi"); + CmdArgs.push_back("-lunwind"); +} + +std::string MipsLLVMToolChain::getCompilerRT(const ArgList &Args, + StringRef Component, + bool Shared) const { + SmallString<128> Path(getDriver().ResourceDir); + llvm::sys::path::append(Path, SelectedMultilib.osSuffix(), "lib" + LibSuffix, + getOS()); + llvm::sys::path::append(Path, Twine("libclang_rt." + Component + "-" + + "mips" + (Shared ? ".so" : ".a"))); + return Path.str(); +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/MipsLinux.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/MipsLinux.h new file mode 100644 index 0000000..fa82efb --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/MipsLinux.h @@ -0,0 +1,62 @@ +//===--- Mips.h - Mips ToolChain Implementations ----------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_MIPS_LINUX_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_MIPS_LINUX_H + +#include "Linux.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY MipsLLVMToolChain : public Linux { +protected: + Tool *buildLinker() const override; + +public: + MipsLLVMToolChain(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + + void + AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + + CXXStdlibType GetCXXStdlibType(const llvm::opt::ArgList &Args) const override; + + std::string findLibCxxIncludePath() const override; + + void AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const override; + + std::string getCompilerRT(const llvm::opt::ArgList &Args, StringRef Component, + bool Shared = false) const override; + + std::string computeSysRoot() const override; + + RuntimeLibType GetDefaultRuntimeLibType() const override { + return GCCInstallation.isValid() ? RuntimeLibType::RLT_Libgcc + : RuntimeLibType::RLT_CompilerRT; + } + + const char *getDefaultLinker() const override { + return "lld"; + } + +private: + Multilib SelectedMultilib; + std::string LibSuffix; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_MIPS_LINUX_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Myriad.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Myriad.cpp new file mode 100644 index 0000000..6fdb5a2 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Myriad.cpp @@ -0,0 +1,289 @@ +//===--- Myriad.cpp - Myriad ToolChain Implementations ----------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "Myriad.h" +#include "CommonArgs.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Options.h" +#include "llvm/Option/ArgList.h" + +using namespace clang::driver; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +using tools::addPathIfExists; + +void tools::SHAVE::Compiler::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + ArgStringList CmdArgs; + assert(Inputs.size() == 1); + const InputInfo &II = Inputs[0]; + assert(II.getType() == types::TY_C || II.getType() == types::TY_CXX || + II.getType() == types::TY_PP_CXX); + + if (JA.getKind() == Action::PreprocessJobClass) { + Args.ClaimAllArgs(); + CmdArgs.push_back("-E"); + } else { + assert(Output.getType() == types::TY_PP_Asm); // Require preprocessed asm. + CmdArgs.push_back("-S"); + CmdArgs.push_back("-fno-exceptions"); // Always do this even if unspecified. + } + CmdArgs.push_back("-DMYRIAD2"); + + // Append all -I, -iquote, -isystem paths, defines/undefines, 'f' + // flags, 'g' flags, 'M' flags, optimize flags, warning options, + // mcpu flags, mllvm flags, and Xclang flags. + // These are spelled the same way in clang and moviCompile. + Args.AddAllArgsExcept( + CmdArgs, + {options::OPT_I_Group, options::OPT_clang_i_Group, options::OPT_std_EQ, + options::OPT_D, options::OPT_U, options::OPT_f_Group, + options::OPT_f_clang_Group, options::OPT_g_Group, options::OPT_M_Group, + options::OPT_O_Group, options::OPT_W_Group, options::OPT_mcpu_EQ, + options::OPT_mllvm, options::OPT_Xclang}, + {options::OPT_fno_split_dwarf_inlining}); + Args.hasArg(options::OPT_fno_split_dwarf_inlining); // Claim it if present. + + // If we're producing a dependency file, and assembly is the final action, + // then the name of the target in the dependency file should be the '.o' + // file, not the '.s' file produced by this step. For example, instead of + // /tmp/mumble.s: mumble.c .../someheader.h + // the filename on the lefthand side should be "mumble.o" + if (Args.getLastArg(options::OPT_MF) && !Args.getLastArg(options::OPT_MT) && + C.getActions().size() == 1 && + C.getActions()[0]->getKind() == Action::AssembleJobClass) { + Arg *A = Args.getLastArg(options::OPT_o); + if (A) { + CmdArgs.push_back("-MT"); + CmdArgs.push_back(Args.MakeArgString(A->getValue())); + } + } + + CmdArgs.push_back(II.getFilename()); + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + std::string Exec = + Args.MakeArgString(getToolChain().GetProgramPath("moviCompile")); + C.addCommand(llvm::make_unique<Command>(JA, *this, Args.MakeArgString(Exec), + CmdArgs, Inputs)); +} + +void tools::SHAVE::Assembler::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + ArgStringList CmdArgs; + + assert(Inputs.size() == 1); + const InputInfo &II = Inputs[0]; + assert(II.getType() == types::TY_PP_Asm); // Require preprocessed asm input. + assert(Output.getType() == types::TY_Object); + + CmdArgs.push_back("-no6thSlotCompression"); + const Arg *CPUArg = Args.getLastArg(options::OPT_mcpu_EQ); + if (CPUArg) + CmdArgs.push_back( + Args.MakeArgString("-cv:" + StringRef(CPUArg->getValue()))); + CmdArgs.push_back("-noSPrefixing"); + CmdArgs.push_back("-a"); // Mystery option. + Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); + for (const Arg *A : Args.filtered(options::OPT_I, options::OPT_isystem)) { + A->claim(); + CmdArgs.push_back( + Args.MakeArgString(std::string("-i:") + A->getValue(0))); + } + CmdArgs.push_back("-elf"); // Output format. + CmdArgs.push_back(II.getFilename()); + CmdArgs.push_back( + Args.MakeArgString(std::string("-o:") + Output.getFilename())); + + std::string Exec = + Args.MakeArgString(getToolChain().GetProgramPath("moviAsm")); + C.addCommand(llvm::make_unique<Command>(JA, *this, Args.MakeArgString(Exec), + CmdArgs, Inputs)); +} + +void tools::Myriad::Linker::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + const auto &TC = + static_cast<const toolchains::MyriadToolChain &>(getToolChain()); + const llvm::Triple &T = TC.getTriple(); + ArgStringList CmdArgs; + bool UseStartfiles = + !Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles); + bool UseDefaultLibs = + !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs); + // Silence warning if the args contain both -nostdlib and -stdlib=. + Args.getLastArg(options::OPT_stdlib_EQ); + + if (T.getArch() == llvm::Triple::sparc) + CmdArgs.push_back("-EB"); + else // SHAVE assumes little-endian, and sparcel is expressly so. + CmdArgs.push_back("-EL"); + + // The remaining logic is mostly like gnutools::Linker::ConstructJob, + // but we never pass through a --sysroot option and various other bits. + // For example, there are no sanitizers (yet) nor gold linker. + + // Eat some arguments that may be present but have no effect. + Args.ClaimAllArgs(options::OPT_g_Group); + Args.ClaimAllArgs(options::OPT_w); + Args.ClaimAllArgs(options::OPT_static_libgcc); + + if (Args.hasArg(options::OPT_s)) // Pass the 'strip' option. + CmdArgs.push_back("-s"); + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + if (UseStartfiles) { + // If you want startfiles, it means you want the builtin crti and crtbegin, + // but not crt0. Myriad link commands provide their own crt0.o as needed. + CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crti.o"))); + CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crtbegin.o"))); + } + + Args.AddAllArgs(CmdArgs, {options::OPT_L, options::OPT_T_Group, + options::OPT_e, options::OPT_s, options::OPT_t, + options::OPT_Z_Flag, options::OPT_r}); + + TC.AddFilePathLibArgs(Args, CmdArgs); + + bool NeedsSanitizerDeps = addSanitizerRuntimes(TC, Args, CmdArgs); + AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); + + if (UseDefaultLibs) { + if (NeedsSanitizerDeps) + linkSanitizerRuntimeDeps(TC, CmdArgs); + if (C.getDriver().CCCIsCXX()) { + if (TC.GetCXXStdlibType(Args) == ToolChain::CST_Libcxx) { + CmdArgs.push_back("-lc++"); + CmdArgs.push_back("-lc++abi"); + } else + CmdArgs.push_back("-lstdc++"); + } + if (T.getOS() == llvm::Triple::RTEMS) { + CmdArgs.push_back("--start-group"); + CmdArgs.push_back("-lc"); + CmdArgs.push_back("-lgcc"); // circularly dependent on rtems + // You must provide your own "-L" option to enable finding these. + CmdArgs.push_back("-lrtemscpu"); + CmdArgs.push_back("-lrtemsbsp"); + CmdArgs.push_back("--end-group"); + } else { + CmdArgs.push_back("-lc"); + CmdArgs.push_back("-lgcc"); + } + } + if (UseStartfiles) { + CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crtend.o"))); + CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crtn.o"))); + } + + std::string Exec = + Args.MakeArgString(TC.GetProgramPath("sparc-myriad-elf-ld")); + C.addCommand(llvm::make_unique<Command>(JA, *this, Args.MakeArgString(Exec), + CmdArgs, Inputs)); +} + +MyriadToolChain::MyriadToolChain(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : Generic_ELF(D, Triple, Args) { + // If a target of 'sparc-myriad-elf' is specified to clang, it wants to use + // 'sparc-myriad--elf' (note the unknown OS) as the canonical triple. + // This won't work to find gcc. Instead we give the installation detector an + // extra triple, which is preferable to further hacks of the logic that at + // present is based solely on getArch(). In particular, it would be wrong to + // choose the myriad installation when targeting a non-myriad sparc install. + switch (Triple.getArch()) { + default: + D.Diag(clang::diag::err_target_unsupported_arch) + << Triple.getArchName() << "myriad"; + LLVM_FALLTHROUGH; + case llvm::Triple::sparc: + case llvm::Triple::sparcel: + case llvm::Triple::shave: + GCCInstallation.init(Triple, Args, {"sparc-myriad-elf"}); + } + + if (GCCInstallation.isValid()) { + // This directory contains crt{i,n,begin,end}.o as well as libgcc. + // These files are tied to a particular version of gcc. + SmallString<128> CompilerSupportDir(GCCInstallation.getInstallPath()); + addPathIfExists(D, CompilerSupportDir, getFilePaths()); + } + // libstd++ and libc++ must both be found in this one place. + addPathIfExists(D, D.Dir + "/../sparc-myriad-elf/lib", getFilePaths()); +} + +MyriadToolChain::~MyriadToolChain() {} + +void MyriadToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + if (!DriverArgs.hasArg(clang::driver::options::OPT_nostdinc)) + addSystemInclude(DriverArgs, CC1Args, getDriver().SysRoot + "/include"); +} + +std::string MyriadToolChain::findLibCxxIncludePath() const { + std::string Path(getDriver().getInstalledDir()); + return Path + "/../include/c++/v1"; +} + +void MyriadToolChain::addLibStdCxxIncludePaths( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const { + StringRef LibDir = GCCInstallation.getParentLibPath(); + const GCCVersion &Version = GCCInstallation.getVersion(); + StringRef TripleStr = GCCInstallation.getTriple().str(); + const Multilib &Multilib = GCCInstallation.getMultilib(); + addLibStdCXXIncludePaths( + LibDir.str() + "/../" + TripleStr.str() + "/include/c++/" + Version.Text, + "", TripleStr, "", "", Multilib.includeSuffix(), DriverArgs, CC1Args); +} + +// MyriadToolChain handles several triples: +// {shave,sparc{,el}}-myriad-{rtems,unknown}-elf +Tool *MyriadToolChain::SelectTool(const JobAction &JA) const { + // The inherited method works fine if not targeting the SHAVE. + if (!isShaveCompilation(getTriple())) + return ToolChain::SelectTool(JA); + switch (JA.getKind()) { + case Action::PreprocessJobClass: + case Action::CompileJobClass: + if (!Compiler) + Compiler.reset(new tools::SHAVE::Compiler(*this)); + return Compiler.get(); + case Action::AssembleJobClass: + if (!Assembler) + Assembler.reset(new tools::SHAVE::Assembler(*this)); + return Assembler.get(); + default: + return ToolChain::getTool(JA.getKind()); + } +} + +Tool *MyriadToolChain::buildLinker() const { + return new tools::Myriad::Linker(*this); +} + +SanitizerMask MyriadToolChain::getSupportedSanitizers() const { + return SanitizerKind::Address; +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Myriad.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Myriad.h new file mode 100644 index 0000000..4c213c7 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Myriad.h @@ -0,0 +1,102 @@ +//===--- Myriad.h - Myriad ToolChain Implementations ------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_MYRIAD_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_MYRIAD_H + +#include "Gnu.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace tools { + +/// SHAVE tools -- Directly call moviCompile and moviAsm +namespace SHAVE { +class LLVM_LIBRARY_VISIBILITY Compiler : public Tool { +public: + Compiler(const ToolChain &TC) : Tool("moviCompile", "movicompile", TC) {} + + bool hasIntegratedCPP() const override { return true; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +class LLVM_LIBRARY_VISIBILITY Assembler : public Tool { +public: + Assembler(const ToolChain &TC) : Tool("moviAsm", "moviAsm", TC) {} + + bool hasIntegratedCPP() const override { return false; } // not sure. + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; +} // end namespace SHAVE + +/// The Myriad toolchain uses tools that are in two different namespaces. +/// The Compiler and Assembler as defined above are in the SHAVE namespace, +/// whereas the linker, which accepts code for a mixture of Sparc and SHAVE, +/// is in the Myriad namespace. +namespace Myriad { +class LLVM_LIBRARY_VISIBILITY Linker : public GnuTool { +public: + Linker(const ToolChain &TC) : GnuTool("shave::Linker", "ld", TC) {} + bool hasIntegratedCPP() const override { return false; } + bool isLinkJob() const override { return true; } + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; +} // end namespace Myriad +} // end namespace tools + +namespace toolchains { + +/// MyriadToolChain - A tool chain using either clang or the external compiler +/// installed by the Movidius SDK to perform all subcommands. +class LLVM_LIBRARY_VISIBILITY MyriadToolChain : public Generic_ELF { +public: + MyriadToolChain(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + ~MyriadToolChain() override; + + void + AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + std::string findLibCxxIncludePath() const override; + void addLibStdCxxIncludePaths( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + Tool *SelectTool(const JobAction &JA) const override; + unsigned GetDefaultDwarfVersion() const override { return 2; } + SanitizerMask getSupportedSanitizers() const override; + +protected: + Tool *buildLinker() const override; + bool isShaveCompilation(const llvm::Triple &T) const { + return T.getArch() == llvm::Triple::shave; + } + +private: + mutable std::unique_ptr<Tool> Compiler; + mutable std::unique_ptr<Tool> Assembler; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_MYRIAD_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/NaCl.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/NaCl.cpp new file mode 100644 index 0000000..5eb5c74 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/NaCl.cpp @@ -0,0 +1,363 @@ +//===--- NaCl.cpp - Native Client ToolChain Implementations -----*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "NaCl.h" +#include "InputInfo.h" +#include "CommonArgs.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Options.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Support/Path.h" + +using namespace clang::driver; +using namespace clang::driver::tools; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +// NaCl ARM assembly (inline or standalone) can be written with a set of macros +// for the various SFI requirements like register masking. The assembly tool +// inserts the file containing the macros as an input into all the assembly +// jobs. +void nacltools::AssemblerARM::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + const toolchains::NaClToolChain &ToolChain = + static_cast<const toolchains::NaClToolChain &>(getToolChain()); + InputInfo NaClMacros(types::TY_PP_Asm, ToolChain.GetNaClArmMacrosPath(), + "nacl-arm-macros.s"); + InputInfoList NewInputs; + NewInputs.push_back(NaClMacros); + NewInputs.append(Inputs.begin(), Inputs.end()); + gnutools::Assembler::ConstructJob(C, JA, Output, NewInputs, Args, + LinkingOutput); +} + +// This is quite similar to gnutools::Linker::ConstructJob with changes that +// we use static by default, do not yet support sanitizers or LTO, and a few +// others. Eventually we can support more of that and hopefully migrate back +// to gnutools::Linker. +void nacltools::Linker::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + + const toolchains::NaClToolChain &ToolChain = + static_cast<const toolchains::NaClToolChain &>(getToolChain()); + const Driver &D = ToolChain.getDriver(); + const llvm::Triple::ArchType Arch = ToolChain.getArch(); + const bool IsStatic = + !Args.hasArg(options::OPT_dynamic) && !Args.hasArg(options::OPT_shared); + + ArgStringList CmdArgs; + + // Silence warning for "clang -g foo.o -o foo" + Args.ClaimAllArgs(options::OPT_g_Group); + // and "clang -emit-llvm foo.o -o foo" + Args.ClaimAllArgs(options::OPT_emit_llvm); + // and for "clang -w foo.o -o foo". Other warning options are already + // handled somewhere else. + Args.ClaimAllArgs(options::OPT_w); + + if (!D.SysRoot.empty()) + CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); + + if (Args.hasArg(options::OPT_rdynamic)) + CmdArgs.push_back("-export-dynamic"); + + if (Args.hasArg(options::OPT_s)) + CmdArgs.push_back("-s"); + + // NaClToolChain doesn't have ExtraOpts like Linux; the only relevant flag + // from there is --build-id, which we do want. + CmdArgs.push_back("--build-id"); + + if (!IsStatic) + CmdArgs.push_back("--eh-frame-hdr"); + + CmdArgs.push_back("-m"); + if (Arch == llvm::Triple::x86) + CmdArgs.push_back("elf_i386_nacl"); + else if (Arch == llvm::Triple::arm) + CmdArgs.push_back("armelf_nacl"); + else if (Arch == llvm::Triple::x86_64) + CmdArgs.push_back("elf_x86_64_nacl"); + else if (Arch == llvm::Triple::mipsel) + CmdArgs.push_back("mipselelf_nacl"); + else + D.Diag(diag::err_target_unsupported_arch) << ToolChain.getArchName() + << "Native Client"; + + if (IsStatic) + CmdArgs.push_back("-static"); + else if (Args.hasArg(options::OPT_shared)) + CmdArgs.push_back("-shared"); + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + if (!Args.hasArg(options::OPT_shared)) + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt1.o"))); + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o"))); + + const char *crtbegin; + if (IsStatic) + crtbegin = "crtbeginT.o"; + else if (Args.hasArg(options::OPT_shared)) + crtbegin = "crtbeginS.o"; + else + crtbegin = "crtbegin.o"; + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crtbegin))); + } + + Args.AddAllArgs(CmdArgs, options::OPT_L); + Args.AddAllArgs(CmdArgs, options::OPT_u); + + ToolChain.AddFilePathLibArgs(Args, CmdArgs); + + if (Args.hasArg(options::OPT_Z_Xlinker__no_demangle)) + CmdArgs.push_back("--no-demangle"); + + AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA); + + if (D.CCCIsCXX() && + !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { + bool OnlyLibstdcxxStatic = + Args.hasArg(options::OPT_static_libstdcxx) && !IsStatic; + if (OnlyLibstdcxxStatic) + CmdArgs.push_back("-Bstatic"); + ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs); + if (OnlyLibstdcxxStatic) + CmdArgs.push_back("-Bdynamic"); + CmdArgs.push_back("-lm"); + } + + if (!Args.hasArg(options::OPT_nostdlib)) { + if (!Args.hasArg(options::OPT_nodefaultlibs)) { + // Always use groups, since it has no effect on dynamic libraries. + CmdArgs.push_back("--start-group"); + CmdArgs.push_back("-lc"); + // NaCl's libc++ currently requires libpthread, so just always include it + // in the group for C++. + if (Args.hasArg(options::OPT_pthread) || + Args.hasArg(options::OPT_pthreads) || D.CCCIsCXX()) { + // Gold, used by Mips, handles nested groups differently than ld, and + // without '-lnacl' it prefers symbols from libpthread.a over libnacl.a, + // which is not a desired behaviour here. + // See https://sourceware.org/ml/binutils/2015-03/msg00034.html + if (getToolChain().getArch() == llvm::Triple::mipsel) + CmdArgs.push_back("-lnacl"); + + CmdArgs.push_back("-lpthread"); + } + + CmdArgs.push_back("-lgcc"); + CmdArgs.push_back("--as-needed"); + if (IsStatic) + CmdArgs.push_back("-lgcc_eh"); + else + CmdArgs.push_back("-lgcc_s"); + CmdArgs.push_back("--no-as-needed"); + + // Mips needs to create and use pnacl_legacy library that contains + // definitions from bitcode/pnaclmm.c and definitions for + // __nacl_tp_tls_offset() and __nacl_tp_tdb_offset(). + if (getToolChain().getArch() == llvm::Triple::mipsel) + CmdArgs.push_back("-lpnacl_legacy"); + + CmdArgs.push_back("--end-group"); + } + + if (!Args.hasArg(options::OPT_nostartfiles)) { + const char *crtend; + if (Args.hasArg(options::OPT_shared)) + crtend = "crtendS.o"; + else + crtend = "crtend.o"; + + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crtend))); + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o"))); + } + } + + const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath()); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +/// NaCl Toolchain +NaClToolChain::NaClToolChain(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : Generic_ELF(D, Triple, Args) { + + // Remove paths added by Generic_GCC. NaCl Toolchain cannot use the + // default paths, and must instead only use the paths provided + // with this toolchain based on architecture. + path_list &file_paths = getFilePaths(); + path_list &prog_paths = getProgramPaths(); + + file_paths.clear(); + prog_paths.clear(); + + // Path for library files (libc.a, ...) + std::string FilePath(getDriver().Dir + "/../"); + + // Path for tools (clang, ld, etc..) + std::string ProgPath(getDriver().Dir + "/../"); + + // Path for toolchain libraries (libgcc.a, ...) + std::string ToolPath(getDriver().ResourceDir + "/lib/"); + + switch (Triple.getArch()) { + case llvm::Triple::x86: + file_paths.push_back(FilePath + "x86_64-nacl/lib32"); + file_paths.push_back(FilePath + "i686-nacl/usr/lib"); + prog_paths.push_back(ProgPath + "x86_64-nacl/bin"); + file_paths.push_back(ToolPath + "i686-nacl"); + break; + case llvm::Triple::x86_64: + file_paths.push_back(FilePath + "x86_64-nacl/lib"); + file_paths.push_back(FilePath + "x86_64-nacl/usr/lib"); + prog_paths.push_back(ProgPath + "x86_64-nacl/bin"); + file_paths.push_back(ToolPath + "x86_64-nacl"); + break; + case llvm::Triple::arm: + file_paths.push_back(FilePath + "arm-nacl/lib"); + file_paths.push_back(FilePath + "arm-nacl/usr/lib"); + prog_paths.push_back(ProgPath + "arm-nacl/bin"); + file_paths.push_back(ToolPath + "arm-nacl"); + break; + case llvm::Triple::mipsel: + file_paths.push_back(FilePath + "mipsel-nacl/lib"); + file_paths.push_back(FilePath + "mipsel-nacl/usr/lib"); + prog_paths.push_back(ProgPath + "bin"); + file_paths.push_back(ToolPath + "mipsel-nacl"); + break; + default: + break; + } + + NaClArmMacrosPath = GetFilePath("nacl-arm-macros.s"); +} + +void NaClToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + const Driver &D = getDriver(); + if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc)) + return; + + if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) { + SmallString<128> P(D.ResourceDir); + llvm::sys::path::append(P, "include"); + addSystemInclude(DriverArgs, CC1Args, P.str()); + } + + if (DriverArgs.hasArg(options::OPT_nostdlibinc)) + return; + + SmallString<128> P(D.Dir + "/../"); + switch (getTriple().getArch()) { + case llvm::Triple::x86: + // x86 is special because multilib style uses x86_64-nacl/include for libc + // headers but the SDK wants i686-nacl/usr/include. The other architectures + // have the same substring. + llvm::sys::path::append(P, "i686-nacl/usr/include"); + addSystemInclude(DriverArgs, CC1Args, P.str()); + llvm::sys::path::remove_filename(P); + llvm::sys::path::remove_filename(P); + llvm::sys::path::remove_filename(P); + llvm::sys::path::append(P, "x86_64-nacl/include"); + addSystemInclude(DriverArgs, CC1Args, P.str()); + return; + case llvm::Triple::arm: + llvm::sys::path::append(P, "arm-nacl/usr/include"); + break; + case llvm::Triple::x86_64: + llvm::sys::path::append(P, "x86_64-nacl/usr/include"); + break; + case llvm::Triple::mipsel: + llvm::sys::path::append(P, "mipsel-nacl/usr/include"); + break; + default: + return; + } + + addSystemInclude(DriverArgs, CC1Args, P.str()); + llvm::sys::path::remove_filename(P); + llvm::sys::path::remove_filename(P); + llvm::sys::path::append(P, "include"); + addSystemInclude(DriverArgs, CC1Args, P.str()); +} + +void NaClToolChain::AddCXXStdlibLibArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + // Check for -stdlib= flags. We only support libc++ but this consumes the arg + // if the value is libc++, and emits an error for other values. + GetCXXStdlibType(Args); + CmdArgs.push_back("-lc++"); +} + +std::string NaClToolChain::findLibCxxIncludePath() const { + const Driver &D = getDriver(); + + SmallString<128> P(D.Dir + "/../"); + switch (getTriple().getArch()) { + case llvm::Triple::arm: + llvm::sys::path::append(P, "arm-nacl/include/c++/v1"); + return P.str(); + case llvm::Triple::x86: + llvm::sys::path::append(P, "x86_64-nacl/include/c++/v1"); + return P.str(); + case llvm::Triple::x86_64: + llvm::sys::path::append(P, "x86_64-nacl/include/c++/v1"); + return P.str(); + case llvm::Triple::mipsel: + llvm::sys::path::append(P, "mipsel-nacl/include/c++/v1"); + return P.str(); + default: + return ""; + } +} + +ToolChain::CXXStdlibType +NaClToolChain::GetCXXStdlibType(const ArgList &Args) const { + if (Arg *A = Args.getLastArg(options::OPT_stdlib_EQ)) { + StringRef Value = A->getValue(); + if (Value == "libc++") + return ToolChain::CST_Libcxx; + getDriver().Diag(clang::diag::err_drv_invalid_stdlib_name) + << A->getAsString(Args); + } + + return ToolChain::CST_Libcxx; +} + +std::string +NaClToolChain::ComputeEffectiveClangTriple(const ArgList &Args, + types::ID InputType) const { + llvm::Triple TheTriple(ComputeLLVMTriple(Args, InputType)); + if (TheTriple.getArch() == llvm::Triple::arm && + TheTriple.getEnvironment() == llvm::Triple::UnknownEnvironment) + TheTriple.setEnvironment(llvm::Triple::GNUEABIHF); + return TheTriple.getTriple(); +} + +Tool *NaClToolChain::buildLinker() const { + return new tools::nacltools::Linker(*this); +} + +Tool *NaClToolChain::buildAssembler() const { + if (getTriple().getArch() == llvm::Triple::arm) + return new tools::nacltools::AssemblerARM(*this); + return new tools::gnutools::Assembler(*this); +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/NaCl.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/NaCl.h new file mode 100644 index 0000000..31af3a5 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/NaCl.h @@ -0,0 +1,87 @@ +//===--- NaCl.h - Native Client ToolChain Implementations -------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_NACL_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_NACL_H + +#include "Gnu.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace tools { +namespace nacltools { +class LLVM_LIBRARY_VISIBILITY AssemblerARM : public gnutools::Assembler { +public: + AssemblerARM(const ToolChain &TC) : gnutools::Assembler(TC) {} + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +class LLVM_LIBRARY_VISIBILITY Linker : public GnuTool { +public: + Linker(const ToolChain &TC) : GnuTool("NaCl::Linker", "linker", TC) {} + + bool hasIntegratedCPP() const override { return false; } + bool isLinkJob() const override { return true; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; +} // end namespace nacltools +} // end namespace tools + +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY NaClToolChain : public Generic_ELF { +public: + NaClToolChain(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + + void + AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + std::string findLibCxxIncludePath() const override; + + CXXStdlibType GetCXXStdlibType(const llvm::opt::ArgList &Args) const override; + + void AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const override; + + bool IsIntegratedAssemblerDefault() const override { + return getTriple().getArch() == llvm::Triple::mipsel; + } + + // Get the path to the file containing NaCl's ARM macros. + // It lives in NaClToolChain because the ARMAssembler tool needs a + // const char * that it can pass around, + const char *GetNaClArmMacrosPath() const { return NaClArmMacrosPath.c_str(); } + + std::string ComputeEffectiveClangTriple(const llvm::opt::ArgList &Args, + types::ID InputType) const override; + +protected: + Tool *buildLinker() const override; + Tool *buildAssembler() const override; + +private: + std::string NaClArmMacrosPath; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_NACL_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/NetBSD.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/NetBSD.cpp new file mode 100644 index 0000000..a1a3108 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/NetBSD.cpp @@ -0,0 +1,425 @@ +//===--- NetBSD.cpp - NetBSD ToolChain Implementations ----------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "NetBSD.h" +#include "Arch/ARM.h" +#include "Arch/Mips.h" +#include "Arch/Sparc.h" +#include "CommonArgs.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/Options.h" +#include "clang/Driver/SanitizerArgs.h" +#include "llvm/Option/ArgList.h" + +using namespace clang::driver; +using namespace clang::driver::tools; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +void netbsd::Assembler::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + claimNoWarnArgs(Args); + ArgStringList CmdArgs; + + // GNU as needs different flags for creating the correct output format + // on architectures with different ABIs or optional feature sets. + switch (getToolChain().getArch()) { + case llvm::Triple::x86: + CmdArgs.push_back("--32"); + break; + case llvm::Triple::arm: + case llvm::Triple::armeb: + case llvm::Triple::thumb: + case llvm::Triple::thumbeb: { + StringRef MArch, MCPU; + arm::getARMArchCPUFromArgs(Args, MArch, MCPU, /*FromAs*/ true); + std::string Arch = + arm::getARMTargetCPU(MCPU, MArch, getToolChain().getTriple()); + CmdArgs.push_back(Args.MakeArgString("-mcpu=" + Arch)); + break; + } + + case llvm::Triple::mips: + case llvm::Triple::mipsel: + case llvm::Triple::mips64: + case llvm::Triple::mips64el: { + StringRef CPUName; + StringRef ABIName; + mips::getMipsCPUAndABI(Args, getToolChain().getTriple(), CPUName, ABIName); + + CmdArgs.push_back("-march"); + CmdArgs.push_back(CPUName.data()); + + CmdArgs.push_back("-mabi"); + CmdArgs.push_back(mips::getGnuCompatibleMipsABIName(ABIName).data()); + + if (getToolChain().getArch() == llvm::Triple::mips || + getToolChain().getArch() == llvm::Triple::mips64) + CmdArgs.push_back("-EB"); + else + CmdArgs.push_back("-EL"); + + AddAssemblerKPIC(getToolChain(), Args, CmdArgs); + break; + } + + case llvm::Triple::sparc: + case llvm::Triple::sparcel: { + CmdArgs.push_back("-32"); + std::string CPU = getCPUName(Args, getToolChain().getTriple()); + CmdArgs.push_back(sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple())); + AddAssemblerKPIC(getToolChain(), Args, CmdArgs); + break; + } + + case llvm::Triple::sparcv9: { + CmdArgs.push_back("-64"); + std::string CPU = getCPUName(Args, getToolChain().getTriple()); + CmdArgs.push_back(sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple())); + AddAssemblerKPIC(getToolChain(), Args, CmdArgs); + break; + } + + default: + break; + } + + Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + for (const auto &II : Inputs) + CmdArgs.push_back(II.getFilename()); + + const char *Exec = Args.MakeArgString((getToolChain().GetProgramPath("as"))); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +void netbsd::Linker::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + const Driver &D = getToolChain().getDriver(); + ArgStringList CmdArgs; + + if (!D.SysRoot.empty()) + CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); + + CmdArgs.push_back("--eh-frame-hdr"); + if (Args.hasArg(options::OPT_static)) { + CmdArgs.push_back("-Bstatic"); + } else { + if (Args.hasArg(options::OPT_rdynamic)) + CmdArgs.push_back("-export-dynamic"); + if (Args.hasArg(options::OPT_shared)) { + CmdArgs.push_back("-Bshareable"); + } else { + Args.AddAllArgs(CmdArgs, options::OPT_pie); + CmdArgs.push_back("-dynamic-linker"); + CmdArgs.push_back("/libexec/ld.elf_so"); + } + } + + // Many NetBSD architectures support more than one ABI. + // Determine the correct emulation for ld. + switch (getToolChain().getArch()) { + case llvm::Triple::x86: + CmdArgs.push_back("-m"); + CmdArgs.push_back("elf_i386"); + break; + case llvm::Triple::arm: + case llvm::Triple::thumb: + CmdArgs.push_back("-m"); + switch (getToolChain().getTriple().getEnvironment()) { + case llvm::Triple::EABI: + case llvm::Triple::GNUEABI: + CmdArgs.push_back("armelf_nbsd_eabi"); + break; + case llvm::Triple::EABIHF: + case llvm::Triple::GNUEABIHF: + CmdArgs.push_back("armelf_nbsd_eabihf"); + break; + default: + CmdArgs.push_back("armelf_nbsd"); + break; + } + break; + case llvm::Triple::armeb: + case llvm::Triple::thumbeb: + arm::appendEBLinkFlags(Args, CmdArgs, getToolChain().getEffectiveTriple()); + CmdArgs.push_back("-m"); + switch (getToolChain().getTriple().getEnvironment()) { + case llvm::Triple::EABI: + case llvm::Triple::GNUEABI: + CmdArgs.push_back("armelfb_nbsd_eabi"); + break; + case llvm::Triple::EABIHF: + case llvm::Triple::GNUEABIHF: + CmdArgs.push_back("armelfb_nbsd_eabihf"); + break; + default: + CmdArgs.push_back("armelfb_nbsd"); + break; + } + break; + case llvm::Triple::mips64: + case llvm::Triple::mips64el: + if (mips::hasMipsAbiArg(Args, "32")) { + CmdArgs.push_back("-m"); + if (getToolChain().getArch() == llvm::Triple::mips64) + CmdArgs.push_back("elf32btsmip"); + else + CmdArgs.push_back("elf32ltsmip"); + } else if (mips::hasMipsAbiArg(Args, "64")) { + CmdArgs.push_back("-m"); + if (getToolChain().getArch() == llvm::Triple::mips64) + CmdArgs.push_back("elf64btsmip"); + else + CmdArgs.push_back("elf64ltsmip"); + } + break; + case llvm::Triple::ppc: + CmdArgs.push_back("-m"); + CmdArgs.push_back("elf32ppc_nbsd"); + break; + + case llvm::Triple::ppc64: + case llvm::Triple::ppc64le: + CmdArgs.push_back("-m"); + CmdArgs.push_back("elf64ppc"); + break; + + case llvm::Triple::sparc: + CmdArgs.push_back("-m"); + CmdArgs.push_back("elf32_sparc"); + break; + + case llvm::Triple::sparcv9: + CmdArgs.push_back("-m"); + CmdArgs.push_back("elf64_sparc"); + break; + + default: + break; + } + + if (Output.isFilename()) { + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + } else { + assert(Output.isNothing() && "Invalid output."); + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + if (!Args.hasArg(options::OPT_shared)) { + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crt0.o"))); + } + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crti.o"))); + if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie)) { + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtbeginS.o"))); + } else { + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o"))); + } + } + + Args.AddAllArgs(CmdArgs, options::OPT_L); + Args.AddAllArgs(CmdArgs, options::OPT_T_Group); + Args.AddAllArgs(CmdArgs, options::OPT_e); + Args.AddAllArgs(CmdArgs, options::OPT_s); + Args.AddAllArgs(CmdArgs, options::OPT_t); + Args.AddAllArgs(CmdArgs, options::OPT_Z_Flag); + Args.AddAllArgs(CmdArgs, options::OPT_r); + + bool NeedsSanitizerDeps = addSanitizerRuntimes(getToolChain(), Args, CmdArgs); + AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); + + unsigned Major, Minor, Micro; + getToolChain().getTriple().getOSVersion(Major, Minor, Micro); + bool useLibgcc = true; + if (Major >= 7 || Major == 0) { + switch (getToolChain().getArch()) { + case llvm::Triple::aarch64: + case llvm::Triple::aarch64_be: + case llvm::Triple::arm: + case llvm::Triple::armeb: + case llvm::Triple::thumb: + case llvm::Triple::thumbeb: + case llvm::Triple::ppc: + case llvm::Triple::ppc64: + case llvm::Triple::ppc64le: + case llvm::Triple::sparc: + case llvm::Triple::sparcv9: + case llvm::Triple::x86: + case llvm::Triple::x86_64: + useLibgcc = false; + break; + default: + break; + } + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { + addOpenMPRuntime(CmdArgs, getToolChain(), Args); + if (D.CCCIsCXX()) { + getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs); + CmdArgs.push_back("-lm"); + } + if (NeedsSanitizerDeps) + linkSanitizerRuntimeDeps(getToolChain(), CmdArgs); + if (Args.hasArg(options::OPT_pthread)) + CmdArgs.push_back("-lpthread"); + CmdArgs.push_back("-lc"); + + if (useLibgcc) { + if (Args.hasArg(options::OPT_static)) { + // libgcc_eh depends on libc, so resolve as much as possible, + // pull in any new requirements from libc and then get the rest + // of libgcc. + CmdArgs.push_back("-lgcc_eh"); + CmdArgs.push_back("-lc"); + CmdArgs.push_back("-lgcc"); + } else { + CmdArgs.push_back("-lgcc"); + CmdArgs.push_back("--as-needed"); + CmdArgs.push_back("-lgcc_s"); + CmdArgs.push_back("--no-as-needed"); + } + } + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie)) + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtendS.o"))); + else + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtend.o"))); + CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crtn.o"))); + } + + getToolChain().addProfileRTLibs(Args, CmdArgs); + + const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath()); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +/// NetBSD - NetBSD tool chain which can call as(1) and ld(1) directly. + +NetBSD::NetBSD(const Driver &D, const llvm::Triple &Triple, const ArgList &Args) + : Generic_ELF(D, Triple, Args) { + if (getDriver().UseStdLib) { + // When targeting a 32-bit platform, try the special directory used on + // 64-bit hosts, and only fall back to the main library directory if that + // doesn't work. + // FIXME: It'd be nicer to test if this directory exists, but I'm not sure + // what all logic is needed to emulate the '=' prefix here. + switch (Triple.getArch()) { + case llvm::Triple::x86: + getFilePaths().push_back("=/usr/lib/i386"); + break; + case llvm::Triple::arm: + case llvm::Triple::armeb: + case llvm::Triple::thumb: + case llvm::Triple::thumbeb: + switch (Triple.getEnvironment()) { + case llvm::Triple::EABI: + case llvm::Triple::GNUEABI: + getFilePaths().push_back("=/usr/lib/eabi"); + break; + case llvm::Triple::EABIHF: + case llvm::Triple::GNUEABIHF: + getFilePaths().push_back("=/usr/lib/eabihf"); + break; + default: + getFilePaths().push_back("=/usr/lib/oabi"); + break; + } + break; + case llvm::Triple::mips64: + case llvm::Triple::mips64el: + if (tools::mips::hasMipsAbiArg(Args, "o32")) + getFilePaths().push_back("=/usr/lib/o32"); + else if (tools::mips::hasMipsAbiArg(Args, "64")) + getFilePaths().push_back("=/usr/lib/64"); + break; + case llvm::Triple::ppc: + getFilePaths().push_back("=/usr/lib/powerpc"); + break; + case llvm::Triple::sparc: + getFilePaths().push_back("=/usr/lib/sparc"); + break; + default: + break; + } + + getFilePaths().push_back("=/usr/lib"); + } +} + +Tool *NetBSD::buildAssembler() const { + return new tools::netbsd::Assembler(*this); +} + +Tool *NetBSD::buildLinker() const { return new tools::netbsd::Linker(*this); } + +ToolChain::CXXStdlibType NetBSD::GetDefaultCXXStdlibType() const { + unsigned Major, Minor, Micro; + getTriple().getOSVersion(Major, Minor, Micro); + if (Major >= 7 || Major == 0) { + switch (getArch()) { + case llvm::Triple::aarch64: + case llvm::Triple::aarch64_be: + case llvm::Triple::arm: + case llvm::Triple::armeb: + case llvm::Triple::thumb: + case llvm::Triple::thumbeb: + case llvm::Triple::ppc: + case llvm::Triple::ppc64: + case llvm::Triple::ppc64le: + case llvm::Triple::sparc: + case llvm::Triple::sparcv9: + case llvm::Triple::x86: + case llvm::Triple::x86_64: + return ToolChain::CST_Libcxx; + default: + break; + } + } + return ToolChain::CST_Libstdcxx; +} + +std::string NetBSD::findLibCxxIncludePath() const { + return getDriver().SysRoot + "/usr/include/c++/"; +} + +void NetBSD::addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const { + addLibStdCXXIncludePaths(getDriver().SysRoot, "/usr/include/g++", "", "", "", + "", DriverArgs, CC1Args); +} + +SanitizerMask NetBSD::getSupportedSanitizers() const { + const bool IsX86_64 = getTriple().getArch() == llvm::Triple::x86_64; + SanitizerMask Res = ToolChain::getSupportedSanitizers(); + if (IsX86_64) { + Res |= SanitizerKind::Address; + } + return Res; +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/NetBSD.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/NetBSD.h new file mode 100644 index 0000000..5163ff7 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/NetBSD.h @@ -0,0 +1,83 @@ +//===--- NetBSD.h - NetBSD ToolChain Implementations ------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_NETBSD_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_NETBSD_H + +#include "Gnu.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace tools { + +/// netbsd -- Directly call GNU Binutils assembler and linker +namespace netbsd { +class LLVM_LIBRARY_VISIBILITY Assembler : public GnuTool { +public: + Assembler(const ToolChain &TC) + : GnuTool("netbsd::Assembler", "assembler", TC) {} + + bool hasIntegratedCPP() const override { return false; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +class LLVM_LIBRARY_VISIBILITY Linker : public GnuTool { +public: + Linker(const ToolChain &TC) : GnuTool("netbsd::Linker", "linker", TC) {} + + bool hasIntegratedCPP() const override { return false; } + bool isLinkJob() const override { return true; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; +} // end namespace netbsd +} // end namespace tools + +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY NetBSD : public Generic_ELF { +public: + NetBSD(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + + bool IsMathErrnoDefault() const override { return false; } + bool IsObjCNonFragileABIDefault() const override { return true; } + + CXXStdlibType GetDefaultCXXStdlibType() const override; + + std::string findLibCxxIncludePath() const override; + void addLibStdCxxIncludePaths( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + + bool IsUnwindTablesDefault(const llvm::opt::ArgList &Args) const override { + return true; + } + + SanitizerMask getSupportedSanitizers() const override; + +protected: + Tool *buildAssembler() const override; + Tool *buildLinker() const override; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_NETBSD_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/OpenBSD.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/OpenBSD.cpp new file mode 100644 index 0000000..1d54a1e --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/OpenBSD.cpp @@ -0,0 +1,236 @@ +//===--- OpenBSD.cpp - OpenBSD ToolChain Implementations --------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "OpenBSD.h" +#include "Arch/Mips.h" +#include "Arch/Sparc.h" +#include "CommonArgs.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Options.h" +#include "llvm/Option/ArgList.h" + +using namespace clang::driver; +using namespace clang::driver::tools; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +void openbsd::Assembler::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + claimNoWarnArgs(Args); + ArgStringList CmdArgs; + + switch (getToolChain().getArch()) { + case llvm::Triple::x86: + // When building 32-bit code on OpenBSD/amd64, we have to explicitly + // instruct as in the base system to assemble 32-bit code. + CmdArgs.push_back("--32"); + break; + + case llvm::Triple::ppc: + CmdArgs.push_back("-mppc"); + CmdArgs.push_back("-many"); + break; + + case llvm::Triple::sparc: + case llvm::Triple::sparcel: { + CmdArgs.push_back("-32"); + std::string CPU = getCPUName(Args, getToolChain().getTriple()); + CmdArgs.push_back(sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple())); + AddAssemblerKPIC(getToolChain(), Args, CmdArgs); + break; + } + + case llvm::Triple::sparcv9: { + CmdArgs.push_back("-64"); + std::string CPU = getCPUName(Args, getToolChain().getTriple()); + CmdArgs.push_back(sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple())); + AddAssemblerKPIC(getToolChain(), Args, CmdArgs); + break; + } + + case llvm::Triple::mips64: + case llvm::Triple::mips64el: { + StringRef CPUName; + StringRef ABIName; + mips::getMipsCPUAndABI(Args, getToolChain().getTriple(), CPUName, ABIName); + + CmdArgs.push_back("-mabi"); + CmdArgs.push_back(mips::getGnuCompatibleMipsABIName(ABIName).data()); + + if (getToolChain().getArch() == llvm::Triple::mips64) + CmdArgs.push_back("-EB"); + else + CmdArgs.push_back("-EL"); + + AddAssemblerKPIC(getToolChain(), Args, CmdArgs); + break; + } + + default: + break; + } + + Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + for (const auto &II : Inputs) + CmdArgs.push_back(II.getFilename()); + + const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as")); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +void openbsd::Linker::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + const Driver &D = getToolChain().getDriver(); + ArgStringList CmdArgs; + + // Silence warning for "clang -g foo.o -o foo" + Args.ClaimAllArgs(options::OPT_g_Group); + // and "clang -emit-llvm foo.o -o foo" + Args.ClaimAllArgs(options::OPT_emit_llvm); + // and for "clang -w foo.o -o foo". Other warning options are already + // handled somewhere else. + Args.ClaimAllArgs(options::OPT_w); + + if (getToolChain().getArch() == llvm::Triple::mips64) + CmdArgs.push_back("-EB"); + else if (getToolChain().getArch() == llvm::Triple::mips64el) + CmdArgs.push_back("-EL"); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_shared)) { + CmdArgs.push_back("-e"); + CmdArgs.push_back("__start"); + } + + CmdArgs.push_back("--eh-frame-hdr"); + if (Args.hasArg(options::OPT_static)) { + CmdArgs.push_back("-Bstatic"); + } else { + if (Args.hasArg(options::OPT_rdynamic)) + CmdArgs.push_back("-export-dynamic"); + CmdArgs.push_back("-Bdynamic"); + if (Args.hasArg(options::OPT_shared)) { + CmdArgs.push_back("-shared"); + } else { + CmdArgs.push_back("-dynamic-linker"); + CmdArgs.push_back("/usr/libexec/ld.so"); + } + } + + if (Args.hasArg(options::OPT_pie)) + CmdArgs.push_back("-pie"); + if (Args.hasArg(options::OPT_nopie)) + CmdArgs.push_back("-nopie"); + + if (Output.isFilename()) { + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + } else { + assert(Output.isNothing() && "Invalid output."); + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + if (!Args.hasArg(options::OPT_shared)) { + if (Args.hasArg(options::OPT_pg)) + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("gcrt0.o"))); + else if (Args.hasArg(options::OPT_static) && + !Args.hasArg(options::OPT_nopie)) + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("rcrt0.o"))); + else + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crt0.o"))); + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o"))); + } else { + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtbeginS.o"))); + } + } + + std::string Triple = getToolChain().getTripleString(); + if (Triple.substr(0, 6) == "x86_64") + Triple.replace(0, 6, "amd64"); + CmdArgs.push_back( + Args.MakeArgString("-L/usr/lib/gcc-lib/" + Triple + "/4.2.1")); + + Args.AddAllArgs(CmdArgs, {options::OPT_L, options::OPT_T_Group, + options::OPT_e, options::OPT_s, options::OPT_t, + options::OPT_Z_Flag, options::OPT_r}); + + AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { + if (D.CCCIsCXX()) { + getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs); + if (Args.hasArg(options::OPT_pg)) + CmdArgs.push_back("-lm_p"); + else + CmdArgs.push_back("-lm"); + } + + // FIXME: For some reason GCC passes -lgcc before adding + // the default system libraries. Just mimic this for now. + CmdArgs.push_back("-lgcc"); + + if (Args.hasArg(options::OPT_pthread)) { + if (!Args.hasArg(options::OPT_shared) && Args.hasArg(options::OPT_pg)) + CmdArgs.push_back("-lpthread_p"); + else + CmdArgs.push_back("-lpthread"); + } + + if (!Args.hasArg(options::OPT_shared)) { + if (Args.hasArg(options::OPT_pg)) + CmdArgs.push_back("-lc_p"); + else + CmdArgs.push_back("-lc"); + } + + CmdArgs.push_back("-lgcc"); + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + if (!Args.hasArg(options::OPT_shared)) + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtend.o"))); + else + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtendS.o"))); + } + + const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath()); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +/// OpenBSD - OpenBSD tool chain which can call as(1) and ld(1) directly. + +OpenBSD::OpenBSD(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : Generic_ELF(D, Triple, Args) { + getFilePaths().push_back(getDriver().Dir + "/../lib"); + getFilePaths().push_back("/usr/lib"); +} + +Tool *OpenBSD::buildAssembler() const { + return new tools::openbsd::Assembler(*this); +} + +Tool *OpenBSD::buildLinker() const { return new tools::openbsd::Linker(*this); } diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/OpenBSD.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/OpenBSD.h new file mode 100644 index 0000000..1cc0ca7 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/OpenBSD.h @@ -0,0 +1,76 @@ +//===--- OpenBSD.h - OpenBSD ToolChain Implementations ----------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_OPENBSD_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_OPENBSD_H + +#include "Gnu.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace tools { + +/// openbsd -- Directly call GNU Binutils assembler and linker +namespace openbsd { +class LLVM_LIBRARY_VISIBILITY Assembler : public GnuTool { +public: + Assembler(const ToolChain &TC) + : GnuTool("openbsd::Assembler", "assembler", TC) {} + + bool hasIntegratedCPP() const override { return false; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +class LLVM_LIBRARY_VISIBILITY Linker : public GnuTool { +public: + Linker(const ToolChain &TC) : GnuTool("openbsd::Linker", "linker", TC) {} + + bool hasIntegratedCPP() const override { return false; } + bool isLinkJob() const override { return true; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; +} // end namespace openbsd +} // end namespace tools + +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY OpenBSD : public Generic_ELF { +public: + OpenBSD(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + + bool IsMathErrnoDefault() const override { return false; } + bool IsObjCNonFragileABIDefault() const override { return true; } + bool isPIEDefault() const override { return true; } + + unsigned GetDefaultStackProtectorLevel(bool KernelOrKext) const override { + return 2; + } + unsigned GetDefaultDwarfVersion() const override { return 2; } + +protected: + Tool *buildAssembler() const override; + Tool *buildLinker() const override; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_OPENBSD_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/PS4CPU.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/PS4CPU.cpp new file mode 100644 index 0000000..c1b8c3d --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/PS4CPU.cpp @@ -0,0 +1,419 @@ +//===--- PS4CPU.cpp - PS4CPU ToolChain Implementations ----------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "PS4CPU.h" +#include "FreeBSD.h" +#include "CommonArgs.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Options.h" +#include "clang/Driver/SanitizerArgs.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Support/FileSystem.h" +#include "llvm/Support/Path.h" +#include <cstdlib> // ::getenv + +using namespace clang::driver; +using namespace clang; +using namespace llvm::opt; + +using clang::driver::tools::AddLinkerInputs; + +void tools::PS4cpu::addProfileRTArgs(const ToolChain &TC, const ArgList &Args, + ArgStringList &CmdArgs) { + if ((Args.hasFlag(options::OPT_fprofile_arcs, options::OPT_fno_profile_arcs, + false) || + Args.hasFlag(options::OPT_fprofile_generate, + options::OPT_fno_profile_instr_generate, false) || + Args.hasFlag(options::OPT_fprofile_generate_EQ, + options::OPT_fno_profile_instr_generate, false) || + Args.hasFlag(options::OPT_fprofile_instr_generate, + options::OPT_fno_profile_instr_generate, false) || + Args.hasFlag(options::OPT_fprofile_instr_generate_EQ, + options::OPT_fno_profile_instr_generate, false) || + Args.hasArg(options::OPT_fcreate_profile) || + Args.hasArg(options::OPT_coverage))) + CmdArgs.push_back("--dependent-lib=libclang_rt.profile-x86_64.a"); +} + +void tools::PS4cpu::Assemble::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + claimNoWarnArgs(Args); + ArgStringList CmdArgs; + + Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + assert(Inputs.size() == 1 && "Unexpected number of inputs."); + const InputInfo &Input = Inputs[0]; + assert(Input.isFilename() && "Invalid input."); + CmdArgs.push_back(Input.getFilename()); + + const char *Exec = + Args.MakeArgString(getToolChain().GetProgramPath("orbis-as")); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +static void AddPS4SanitizerArgs(const ToolChain &TC, ArgStringList &CmdArgs) { + const SanitizerArgs &SanArgs = TC.getSanitizerArgs(); + if (SanArgs.needsUbsanRt()) { + CmdArgs.push_back("-lSceDbgUBSanitizer_stub_weak"); + } + if (SanArgs.needsAsanRt()) { + CmdArgs.push_back("-lSceDbgAddressSanitizer_stub_weak"); + } +} + +static void ConstructPS4LinkJob(const Tool &T, Compilation &C, + const JobAction &JA, const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) { + const toolchains::FreeBSD &ToolChain = + static_cast<const toolchains::FreeBSD &>(T.getToolChain()); + const Driver &D = ToolChain.getDriver(); + ArgStringList CmdArgs; + + // Silence warning for "clang -g foo.o -o foo" + Args.ClaimAllArgs(options::OPT_g_Group); + // and "clang -emit-llvm foo.o -o foo" + Args.ClaimAllArgs(options::OPT_emit_llvm); + // and for "clang -w foo.o -o foo". Other warning options are already + // handled somewhere else. + Args.ClaimAllArgs(options::OPT_w); + + if (!D.SysRoot.empty()) + CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); + + if (Args.hasArg(options::OPT_pie)) + CmdArgs.push_back("-pie"); + + if (Args.hasArg(options::OPT_rdynamic)) + CmdArgs.push_back("-export-dynamic"); + if (Args.hasArg(options::OPT_shared)) + CmdArgs.push_back("--oformat=so"); + + if (Output.isFilename()) { + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + } else { + assert(Output.isNothing() && "Invalid output."); + } + + AddPS4SanitizerArgs(ToolChain, CmdArgs); + + Args.AddAllArgs(CmdArgs, options::OPT_L); + Args.AddAllArgs(CmdArgs, options::OPT_T_Group); + Args.AddAllArgs(CmdArgs, options::OPT_e); + Args.AddAllArgs(CmdArgs, options::OPT_s); + Args.AddAllArgs(CmdArgs, options::OPT_t); + Args.AddAllArgs(CmdArgs, options::OPT_r); + + if (Args.hasArg(options::OPT_Z_Xlinker__no_demangle)) + CmdArgs.push_back("--no-demangle"); + + AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA); + + if (Args.hasArg(options::OPT_pthread)) { + CmdArgs.push_back("-lpthread"); + } + + const char *Exec = Args.MakeArgString(ToolChain.GetProgramPath("orbis-ld")); + + C.addCommand(llvm::make_unique<Command>(JA, T, Exec, CmdArgs, Inputs)); +} + +static void ConstructGoldLinkJob(const Tool &T, Compilation &C, + const JobAction &JA, const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) { + const toolchains::FreeBSD &ToolChain = + static_cast<const toolchains::FreeBSD &>(T.getToolChain()); + const Driver &D = ToolChain.getDriver(); + ArgStringList CmdArgs; + + // Silence warning for "clang -g foo.o -o foo" + Args.ClaimAllArgs(options::OPT_g_Group); + // and "clang -emit-llvm foo.o -o foo" + Args.ClaimAllArgs(options::OPT_emit_llvm); + // and for "clang -w foo.o -o foo". Other warning options are already + // handled somewhere else. + Args.ClaimAllArgs(options::OPT_w); + + if (!D.SysRoot.empty()) + CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot)); + + if (Args.hasArg(options::OPT_pie)) + CmdArgs.push_back("-pie"); + + if (Args.hasArg(options::OPT_static)) { + CmdArgs.push_back("-Bstatic"); + } else { + if (Args.hasArg(options::OPT_rdynamic)) + CmdArgs.push_back("-export-dynamic"); + CmdArgs.push_back("--eh-frame-hdr"); + if (Args.hasArg(options::OPT_shared)) { + CmdArgs.push_back("-Bshareable"); + } else { + CmdArgs.push_back("-dynamic-linker"); + CmdArgs.push_back("/libexec/ld-elf.so.1"); + } + CmdArgs.push_back("--enable-new-dtags"); + } + + if (Output.isFilename()) { + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + } else { + assert(Output.isNothing() && "Invalid output."); + } + + AddPS4SanitizerArgs(ToolChain, CmdArgs); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + const char *crt1 = nullptr; + if (!Args.hasArg(options::OPT_shared)) { + if (Args.hasArg(options::OPT_pg)) + crt1 = "gcrt1.o"; + else if (Args.hasArg(options::OPT_pie)) + crt1 = "Scrt1.o"; + else + crt1 = "crt1.o"; + } + if (crt1) + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crt1))); + + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o"))); + + const char *crtbegin = nullptr; + if (Args.hasArg(options::OPT_static)) + crtbegin = "crtbeginT.o"; + else if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie)) + crtbegin = "crtbeginS.o"; + else + crtbegin = "crtbegin.o"; + + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crtbegin))); + } + + Args.AddAllArgs(CmdArgs, options::OPT_L); + ToolChain.AddFilePathLibArgs(Args, CmdArgs); + Args.AddAllArgs(CmdArgs, options::OPT_T_Group); + Args.AddAllArgs(CmdArgs, options::OPT_e); + Args.AddAllArgs(CmdArgs, options::OPT_s); + Args.AddAllArgs(CmdArgs, options::OPT_t); + Args.AddAllArgs(CmdArgs, options::OPT_r); + + if (Args.hasArg(options::OPT_Z_Xlinker__no_demangle)) + CmdArgs.push_back("--no-demangle"); + + AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { + // For PS4, we always want to pass libm, libstdc++ and libkernel + // libraries for both C and C++ compilations. + CmdArgs.push_back("-lkernel"); + if (D.CCCIsCXX()) { + ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs); + if (Args.hasArg(options::OPT_pg)) + CmdArgs.push_back("-lm_p"); + else + CmdArgs.push_back("-lm"); + } + // FIXME: For some reason GCC passes -lgcc and -lgcc_s before adding + // the default system libraries. Just mimic this for now. + if (Args.hasArg(options::OPT_pg)) + CmdArgs.push_back("-lgcc_p"); + else + CmdArgs.push_back("-lcompiler_rt"); + if (Args.hasArg(options::OPT_static)) { + CmdArgs.push_back("-lstdc++"); + } else if (Args.hasArg(options::OPT_pg)) { + CmdArgs.push_back("-lgcc_eh_p"); + } else { + CmdArgs.push_back("--as-needed"); + CmdArgs.push_back("-lstdc++"); + CmdArgs.push_back("--no-as-needed"); + } + + if (Args.hasArg(options::OPT_pthread)) { + if (Args.hasArg(options::OPT_pg)) + CmdArgs.push_back("-lpthread_p"); + else + CmdArgs.push_back("-lpthread"); + } + + if (Args.hasArg(options::OPT_pg)) { + if (Args.hasArg(options::OPT_shared)) + CmdArgs.push_back("-lc"); + else { + if (Args.hasArg(options::OPT_static)) { + CmdArgs.push_back("--start-group"); + CmdArgs.push_back("-lc_p"); + CmdArgs.push_back("-lpthread_p"); + CmdArgs.push_back("--end-group"); + } else { + CmdArgs.push_back("-lc_p"); + } + } + CmdArgs.push_back("-lgcc_p"); + } else { + if (Args.hasArg(options::OPT_static)) { + CmdArgs.push_back("--start-group"); + CmdArgs.push_back("-lc"); + CmdArgs.push_back("-lpthread"); + CmdArgs.push_back("--end-group"); + } else { + CmdArgs.push_back("-lc"); + } + CmdArgs.push_back("-lcompiler_rt"); + } + + if (Args.hasArg(options::OPT_static)) { + CmdArgs.push_back("-lstdc++"); + } else if (Args.hasArg(options::OPT_pg)) { + CmdArgs.push_back("-lgcc_eh_p"); + } else { + CmdArgs.push_back("--as-needed"); + CmdArgs.push_back("-lstdc++"); + CmdArgs.push_back("--no-as-needed"); + } + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie)) + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtendS.o"))); + else + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtend.o"))); + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o"))); + } + + const char *Exec = +#ifdef LLVM_ON_WIN32 + Args.MakeArgString(ToolChain.GetProgramPath("orbis-ld.gold")); +#else + Args.MakeArgString(ToolChain.GetProgramPath("orbis-ld")); +#endif + + C.addCommand(llvm::make_unique<Command>(JA, T, Exec, CmdArgs, Inputs)); +} + +void tools::PS4cpu::Link::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + const toolchains::FreeBSD &ToolChain = + static_cast<const toolchains::FreeBSD &>(getToolChain()); + const Driver &D = ToolChain.getDriver(); + bool PS4Linker; + StringRef LinkerOptName; + if (const Arg *A = Args.getLastArg(options::OPT_fuse_ld_EQ)) { + LinkerOptName = A->getValue(); + if (LinkerOptName != "ps4" && LinkerOptName != "gold") + D.Diag(diag::err_drv_unsupported_linker) << LinkerOptName; + } + + if (LinkerOptName == "gold") + PS4Linker = false; + else if (LinkerOptName == "ps4") + PS4Linker = true; + else + PS4Linker = !Args.hasArg(options::OPT_shared); + + if (PS4Linker) + ConstructPS4LinkJob(*this, C, JA, Output, Inputs, Args, LinkingOutput); + else + ConstructGoldLinkJob(*this, C, JA, Output, Inputs, Args, LinkingOutput); +} + +toolchains::PS4CPU::PS4CPU(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : Generic_ELF(D, Triple, Args) { + if (Args.hasArg(clang::driver::options::OPT_static)) + D.Diag(clang::diag::err_drv_unsupported_opt_for_target) << "-static" + << "PS4"; + + // Determine where to find the PS4 libraries. We use SCE_ORBIS_SDK_DIR + // if it exists; otherwise use the driver's installation path, which + // should be <SDK_DIR>/host_tools/bin. + + SmallString<512> PS4SDKDir; + if (const char *EnvValue = getenv("SCE_ORBIS_SDK_DIR")) { + if (!llvm::sys::fs::exists(EnvValue)) + getDriver().Diag(clang::diag::warn_drv_ps4_sdk_dir) << EnvValue; + PS4SDKDir = EnvValue; + } else { + PS4SDKDir = getDriver().Dir; + llvm::sys::path::append(PS4SDKDir, "/../../"); + } + + // By default, the driver won't report a warning if it can't find + // PS4's include or lib directories. This behavior could be changed if + // -Weverything or -Winvalid-or-nonexistent-directory options are passed. + // If -isysroot was passed, use that as the SDK base path. + std::string PrefixDir; + if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) { + PrefixDir = A->getValue(); + if (!llvm::sys::fs::exists(PrefixDir)) + getDriver().Diag(clang::diag::warn_missing_sysroot) << PrefixDir; + } else + PrefixDir = PS4SDKDir.str(); + + SmallString<512> PS4SDKIncludeDir(PrefixDir); + llvm::sys::path::append(PS4SDKIncludeDir, "target/include"); + if (!Args.hasArg(options::OPT_nostdinc) && + !Args.hasArg(options::OPT_nostdlibinc) && + !Args.hasArg(options::OPT_isysroot) && + !Args.hasArg(options::OPT__sysroot_EQ) && + !llvm::sys::fs::exists(PS4SDKIncludeDir)) { + getDriver().Diag(clang::diag::warn_drv_unable_to_find_directory_expected) + << "PS4 system headers" << PS4SDKIncludeDir; + } + + SmallString<512> PS4SDKLibDir(PS4SDKDir); + llvm::sys::path::append(PS4SDKLibDir, "target/lib"); + if (!Args.hasArg(options::OPT_nostdlib) && + !Args.hasArg(options::OPT_nodefaultlibs) && + !Args.hasArg(options::OPT__sysroot_EQ) && !Args.hasArg(options::OPT_E) && + !Args.hasArg(options::OPT_c) && !Args.hasArg(options::OPT_S) && + !Args.hasArg(options::OPT_emit_ast) && + !llvm::sys::fs::exists(PS4SDKLibDir)) { + getDriver().Diag(clang::diag::warn_drv_unable_to_find_directory_expected) + << "PS4 system libraries" << PS4SDKLibDir; + return; + } + getFilePaths().push_back(PS4SDKLibDir.str()); +} + +Tool *toolchains::PS4CPU::buildAssembler() const { + return new tools::PS4cpu::Assemble(*this); +} + +Tool *toolchains::PS4CPU::buildLinker() const { + return new tools::PS4cpu::Link(*this); +} + +bool toolchains::PS4CPU::isPICDefault() const { return true; } + +bool toolchains::PS4CPU::HasNativeLLVMSupport() const { return true; } + +SanitizerMask toolchains::PS4CPU::getSupportedSanitizers() const { + SanitizerMask Res = ToolChain::getSupportedSanitizers(); + Res |= SanitizerKind::Address; + Res |= SanitizerKind::Vptr; + return Res; +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/PS4CPU.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/PS4CPU.h new file mode 100644 index 0000000..e507edb --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/PS4CPU.h @@ -0,0 +1,93 @@ +//===--- PS4CPU.h - PS4CPU ToolChain Implementations ------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_PS4CPU_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_PS4CPU_H + +#include "Gnu.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace tools { + +namespace PS4cpu { + +void addProfileRTArgs(const ToolChain &TC, const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs); + +class LLVM_LIBRARY_VISIBILITY Assemble : public Tool { +public: + Assemble(const ToolChain &TC) + : Tool("PS4cpu::Assemble", "assembler", TC, RF_Full) {} + + bool hasIntegratedCPP() const override { return false; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +class LLVM_LIBRARY_VISIBILITY Link : public Tool { +public: + Link(const ToolChain &TC) : Tool("PS4cpu::Link", "linker", TC, RF_Full) {} + + bool hasIntegratedCPP() const override { return false; } + bool isLinkJob() const override { return true; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; +} // end namespace PS4cpu +} // namespace tools + +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY PS4CPU : public Generic_ELF { +public: + PS4CPU(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + + // No support for finding a C++ standard library yet. + std::string findLibCxxIncludePath() const override { return ""; } + void addLibStdCxxIncludePaths( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override {} + + bool IsMathErrnoDefault() const override { return false; } + bool IsObjCNonFragileABIDefault() const override { return true; } + bool HasNativeLLVMSupport() const override; + bool isPICDefault() const override; + + unsigned GetDefaultStackProtectorLevel(bool KernelOrKext) const override { + return 2; // SSPStrong + } + + llvm::DebuggerKind getDefaultDebuggerTuning() const override { + return llvm::DebuggerKind::SCE; + } + + SanitizerMask getSupportedSanitizers() const override; + +protected: + Tool *buildAssembler() const override; + Tool *buildLinker() const override; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_PS4CPU_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Solaris.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Solaris.cpp new file mode 100644 index 0000000..de98d11 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Solaris.cpp @@ -0,0 +1,193 @@ +//===--- Solaris.cpp - Solaris ToolChain Implementations --------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "Solaris.h" +#include "CommonArgs.h" +#include "clang/Config/config.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Options.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Support/FileSystem.h" +#include "llvm/Support/Path.h" + +using namespace clang::driver; +using namespace clang::driver::tools; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +void solaris::Assembler::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + claimNoWarnArgs(Args); + ArgStringList CmdArgs; + + Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + for (const auto &II : Inputs) + CmdArgs.push_back(II.getFilename()); + + const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as")); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +void solaris::Linker::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + ArgStringList CmdArgs; + + // Demangle C++ names in errors + CmdArgs.push_back("-C"); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_shared)) { + CmdArgs.push_back("-e"); + CmdArgs.push_back("_start"); + } + + if (Args.hasArg(options::OPT_static)) { + CmdArgs.push_back("-Bstatic"); + CmdArgs.push_back("-dn"); + } else { + CmdArgs.push_back("-Bdynamic"); + if (Args.hasArg(options::OPT_shared)) { + CmdArgs.push_back("-shared"); + } else { + CmdArgs.push_back("--dynamic-linker"); + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("ld.so.1"))); + } + } + + if (Output.isFilename()) { + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + } else { + assert(Output.isNothing() && "Invalid output."); + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + if (!Args.hasArg(options::OPT_shared)) + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crt1.o"))); + + CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crti.o"))); + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("values-Xa.o"))); + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o"))); + } + + getToolChain().AddFilePathLibArgs(Args, CmdArgs); + + Args.AddAllArgs(CmdArgs, {options::OPT_L, options::OPT_T_Group, + options::OPT_e, options::OPT_r}); + + AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { + if (getToolChain().getDriver().CCCIsCXX()) + getToolChain().AddCXXStdlibLibArgs(Args, CmdArgs); + CmdArgs.push_back("-lgcc_s"); + CmdArgs.push_back("-lc"); + if (!Args.hasArg(options::OPT_shared)) { + CmdArgs.push_back("-lgcc"); + CmdArgs.push_back("-lm"); + } + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtend.o"))); + } + CmdArgs.push_back(Args.MakeArgString(getToolChain().GetFilePath("crtn.o"))); + + getToolChain().addProfileRTLibs(Args, CmdArgs); + + const char *Exec = Args.MakeArgString(getToolChain().GetLinkerPath()); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +/// Solaris - Solaris tool chain which can call as(1) and ld(1) directly. + +Solaris::Solaris(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : Generic_ELF(D, Triple, Args) { + + GCCInstallation.init(Triple, Args); + + path_list &Paths = getFilePaths(); + if (GCCInstallation.isValid()) + addPathIfExists(D, GCCInstallation.getInstallPath(), Paths); + + addPathIfExists(D, getDriver().getInstalledDir(), Paths); + if (getDriver().getInstalledDir() != getDriver().Dir) + addPathIfExists(D, getDriver().Dir, Paths); + + addPathIfExists(D, getDriver().SysRoot + getDriver().Dir + "/../lib", Paths); + + std::string LibPath = "/usr/lib/"; + switch (Triple.getArch()) { + case llvm::Triple::x86: + case llvm::Triple::sparc: + break; + case llvm::Triple::x86_64: + LibPath += "amd64/"; + break; + case llvm::Triple::sparcv9: + LibPath += "sparcv9/"; + break; + default: + llvm_unreachable("Unsupported architecture"); + } + + addPathIfExists(D, getDriver().SysRoot + LibPath, Paths); +} + +Tool *Solaris::buildAssembler() const { + return new tools::solaris::Assembler(*this); +} + +Tool *Solaris::buildLinker() const { return new tools::solaris::Linker(*this); } + +void Solaris::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + if (DriverArgs.hasArg(options::OPT_nostdlibinc) || + DriverArgs.hasArg(options::OPT_nostdincxx)) + return; + + // Include the support directory for things like xlocale and fudged system + // headers. + // FIXME: This is a weird mix of libc++ and libstdc++. We should also be + // checking the value of -stdlib= here and adding the includes for libc++ + // rather than libstdc++ if it's requested. + addSystemInclude(DriverArgs, CC1Args, "/usr/include/c++/v1/support/solaris"); + + if (GCCInstallation.isValid()) { + GCCVersion Version = GCCInstallation.getVersion(); + addSystemInclude(DriverArgs, CC1Args, + getDriver().SysRoot + "/usr/gcc/" + + Version.MajorStr + "." + + Version.MinorStr + + "/include/c++/" + Version.Text); + addSystemInclude(DriverArgs, CC1Args, + getDriver().SysRoot + "/usr/gcc/" + Version.MajorStr + + "." + Version.MinorStr + "/include/c++/" + + Version.Text + "/" + + GCCInstallation.getTriple().str()); + } +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/Solaris.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Solaris.h new file mode 100644 index 0000000..787917a --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/Solaris.h @@ -0,0 +1,75 @@ +//===--- Solaris.h - Solaris ToolChain Implementations ----------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_SOLARIS_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_SOLARIS_H + +#include "Gnu.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace tools { + +/// solaris -- Directly call Solaris assembler and linker +namespace solaris { +class LLVM_LIBRARY_VISIBILITY Assembler : public Tool { +public: + Assembler(const ToolChain &TC) + : Tool("solaris::Assembler", "assembler", TC) {} + + bool hasIntegratedCPP() const override { return false; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +class LLVM_LIBRARY_VISIBILITY Linker : public Tool { +public: + Linker(const ToolChain &TC) : Tool("solaris::Linker", "linker", TC) {} + + bool hasIntegratedCPP() const override { return false; } + bool isLinkJob() const override { return true; } + + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; +} // end namespace solaris +} // end namespace tools + +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY Solaris : public Generic_ELF { +public: + Solaris(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + + bool IsIntegratedAssemblerDefault() const override { return true; } + + void AddClangCXXStdlibIncludeArgs( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + + unsigned GetDefaultDwarfVersion() const override { return 2; } + +protected: + Tool *buildAssembler() const override; + Tool *buildLinker() const override; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_SOLARIS_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/TCE.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/TCE.cpp new file mode 100644 index 0000000..ae8a1c8 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/TCE.cpp @@ -0,0 +1,47 @@ +//===--- TCE.cpp - TCE ToolChain Implementations ----------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "TCE.h" +#include "CommonArgs.h" + +using namespace clang::driver; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +/// TCEToolChain - A tool chain using the llvm bitcode tools to perform +/// all subcommands. See http://tce.cs.tut.fi for our peculiar target. +/// Currently does not support anything else but compilation. + +TCEToolChain::TCEToolChain(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : ToolChain(D, Triple, Args) { + // Path mangling to find libexec + std::string Path(getDriver().Dir); + + Path += "/../libexec"; + getProgramPaths().push_back(Path); +} + +TCEToolChain::~TCEToolChain() {} + +bool TCEToolChain::IsMathErrnoDefault() const { return true; } + +bool TCEToolChain::isPICDefault() const { return false; } + +bool TCEToolChain::isPIEDefault() const { return false; } + +bool TCEToolChain::isPICDefaultForced() const { return false; } + +TCELEToolChain::TCELEToolChain(const Driver &D, const llvm::Triple& Triple, + const ArgList &Args) + : TCEToolChain(D, Triple, Args) { +} + +TCELEToolChain::~TCELEToolChain() {} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/TCE.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/TCE.h new file mode 100644 index 0000000..4644f4e --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/TCE.h @@ -0,0 +1,47 @@ +//===--- TCE.h - TCE Tool and ToolChain Implementations ---------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_TCE_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_TCE_H + +#include "clang/Driver/Driver.h" +#include "clang/Driver/ToolChain.h" +#include <set> + +namespace clang { +namespace driver { +namespace toolchains { + +/// TCEToolChain - A tool chain using the llvm bitcode tools to perform +/// all subcommands. See http://tce.cs.tut.fi for our peculiar target. +class LLVM_LIBRARY_VISIBILITY TCEToolChain : public ToolChain { +public: + TCEToolChain(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + ~TCEToolChain() override; + + bool IsMathErrnoDefault() const override; + bool isPICDefault() const override; + bool isPIEDefault() const override; + bool isPICDefaultForced() const override; +}; + +/// Toolchain for little endian TCE cores. +class LLVM_LIBRARY_VISIBILITY TCELEToolChain : public TCEToolChain { +public: + TCELEToolChain(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + ~TCELEToolChain() override; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_TCE_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/WebAssembly.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/WebAssembly.cpp new file mode 100644 index 0000000..058bc42 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/WebAssembly.cpp @@ -0,0 +1,168 @@ +//===--- WebAssembly.cpp - WebAssembly ToolChain Implementation -*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "WebAssembly.h" +#include "CommonArgs.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/Options.h" +#include "llvm/Option/ArgList.h" + +using namespace clang::driver; +using namespace clang::driver::tools; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +wasm::Linker::Linker(const ToolChain &TC) + : GnuTool("wasm::Linker", "lld", TC) {} + +bool wasm::Linker::isLinkJob() const { + return true; +} + +bool wasm::Linker::hasIntegratedCPP() const { + return false; +} + +void wasm::Linker::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + + const ToolChain &ToolChain = getToolChain(); + const Driver &D = ToolChain.getDriver(); + const char *Linker = Args.MakeArgString(ToolChain.GetLinkerPath()); + ArgStringList CmdArgs; + CmdArgs.push_back("-flavor"); + CmdArgs.push_back("wasm"); + + // Enable garbage collection of unused input sections by default, since code + // size is of particular importance. This is significantly facilitated by + // the enabling of -ffunction-sections and -fdata-sections in + // Clang::ConstructJob. + if (areOptimizationsEnabled(Args)) + CmdArgs.push_back("--gc-sections"); + + if (Args.hasArg(options::OPT_rdynamic)) + CmdArgs.push_back("-export-dynamic"); + if (Args.hasArg(options::OPT_s)) + CmdArgs.push_back("--strip-all"); + if (Args.hasArg(options::OPT_shared)) + CmdArgs.push_back("-shared"); + if (Args.hasArg(options::OPT_static)) + CmdArgs.push_back("-Bstatic"); + + Args.AddAllArgs(CmdArgs, options::OPT_L); + ToolChain.AddFilePathLibArgs(Args, CmdArgs); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + if (Args.hasArg(options::OPT_shared)) + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("rcrt1.o"))); + else if (Args.hasArg(options::OPT_pie)) + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("Scrt1.o"))); + else + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt1.o"))); + + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o"))); + } + + AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { + if (D.CCCIsCXX()) + ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs); + + if (Args.hasArg(options::OPT_pthread)) + CmdArgs.push_back("-lpthread"); + + CmdArgs.push_back("-allow-undefined-file"); + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("wasm.syms"))); + CmdArgs.push_back("-lc"); + CmdArgs.push_back("-lcompiler_rt"); + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) + CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o"))); + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + C.addCommand(llvm::make_unique<Command>(JA, *this, Linker, CmdArgs, Inputs)); +} + +WebAssembly::WebAssembly(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args) + : ToolChain(D, Triple, Args) { + + assert(Triple.isArch32Bit() != Triple.isArch64Bit()); + + getProgramPaths().push_back(getDriver().getInstalledDir()); + + getFilePaths().push_back(getDriver().SysRoot + "/lib"); +} + +bool WebAssembly::IsMathErrnoDefault() const { return false; } + +bool WebAssembly::IsObjCNonFragileABIDefault() const { return true; } + +bool WebAssembly::UseObjCMixedDispatch() const { return true; } + +bool WebAssembly::isPICDefault() const { return false; } + +bool WebAssembly::isPIEDefault() const { return false; } + +bool WebAssembly::isPICDefaultForced() const { return false; } + +bool WebAssembly::IsIntegratedAssemblerDefault() const { return true; } + +// TODO: Support Objective C stuff. +bool WebAssembly::SupportsObjCGC() const { return false; } + +bool WebAssembly::hasBlocksRuntime() const { return false; } + +// TODO: Support profiling. +bool WebAssembly::SupportsProfiling() const { return false; } + +bool WebAssembly::HasNativeLLVMSupport() const { return true; } + +void WebAssembly::addClangTargetOptions(const ArgList &DriverArgs, + ArgStringList &CC1Args, + Action::OffloadKind) const { + if (DriverArgs.hasFlag(clang::driver::options::OPT_fuse_init_array, + options::OPT_fno_use_init_array, true)) + CC1Args.push_back("-fuse-init-array"); +} + +ToolChain::RuntimeLibType WebAssembly::GetDefaultRuntimeLibType() const { + return ToolChain::RLT_CompilerRT; +} + +ToolChain::CXXStdlibType WebAssembly::GetCXXStdlibType(const ArgList &Args) const { + return ToolChain::CST_Libcxx; +} + +void WebAssembly::AddClangSystemIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + if (!DriverArgs.hasArg(options::OPT_nostdinc)) + addSystemInclude(DriverArgs, CC1Args, getDriver().SysRoot + "/include"); +} + +void WebAssembly::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + if (!DriverArgs.hasArg(options::OPT_nostdlibinc) && + !DriverArgs.hasArg(options::OPT_nostdincxx)) + addSystemInclude(DriverArgs, CC1Args, + getDriver().SysRoot + "/include/c++/v1"); +} + +Tool *WebAssembly::buildLinker() const { + return new tools::wasm::Linker(*this); +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/WebAssembly.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/WebAssembly.h new file mode 100644 index 0000000..2999db4 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/WebAssembly.h @@ -0,0 +1,78 @@ +//===--- WebAssembly.h - WebAssembly ToolChain Implementations --*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_WEBASSEMBLY_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_WEBASSEMBLY_H + +#include "Gnu.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace tools { +namespace wasm { + +class LLVM_LIBRARY_VISIBILITY Linker : public GnuTool { +public: + explicit Linker(const ToolChain &TC); + bool isLinkJob() const override; + bool hasIntegratedCPP() const override; + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +} // end namespace wasm +} // end namespace tools + +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY WebAssembly final : public ToolChain { +public: + WebAssembly(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + +private: + bool IsMathErrnoDefault() const override; + bool IsObjCNonFragileABIDefault() const override; + bool UseObjCMixedDispatch() const override; + bool isPICDefault() const override; + bool isPIEDefault() const override; + bool isPICDefaultForced() const override; + bool IsIntegratedAssemblerDefault() const override; + bool hasBlocksRuntime() const override; + bool SupportsObjCGC() const override; + bool SupportsProfiling() const override; + bool HasNativeLLVMSupport() const override; + void addClangTargetOptions(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args, + Action::OffloadKind DeviceOffloadKind) const override; + RuntimeLibType GetDefaultRuntimeLibType() const override; + CXXStdlibType GetCXXStdlibType(const llvm::opt::ArgList &Args) const override; + void AddClangSystemIncludeArgs( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + void AddClangCXXStdlibIncludeArgs( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + + const char *getDefaultLinker() const override { + return "lld"; + } + + Tool *buildLinker() const override; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_WEBASSEMBLY_H diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/XCore.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains/XCore.cpp new file mode 100644 index 0000000..43175ad --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/XCore.cpp @@ -0,0 +1,150 @@ +//===--- XCore.cpp - XCore ToolChain Implementations ------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "XCore.h" +#include "CommonArgs.h" +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/Options.h" +#include "llvm/Option/ArgList.h" +#include <cstdlib> // ::getenv + +using namespace clang::driver; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +/// XCore Tools +// We pass assemble and link construction to the xcc tool. + +void tools::XCore::Assembler::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + claimNoWarnArgs(Args); + ArgStringList CmdArgs; + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + CmdArgs.push_back("-c"); + + if (Args.hasArg(options::OPT_v)) + CmdArgs.push_back("-v"); + + if (Arg *A = Args.getLastArg(options::OPT_g_Group)) + if (!A->getOption().matches(options::OPT_g0)) + CmdArgs.push_back("-g"); + + if (Args.hasFlag(options::OPT_fverbose_asm, options::OPT_fno_verbose_asm, + false)) + CmdArgs.push_back("-fverbose-asm"); + + Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); + + for (const auto &II : Inputs) + CmdArgs.push_back(II.getFilename()); + + const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("xcc")); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +void tools::XCore::Linker::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + ArgStringList CmdArgs; + + if (Output.isFilename()) { + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + } else { + assert(Output.isNothing() && "Invalid output."); + } + + if (Args.hasArg(options::OPT_v)) + CmdArgs.push_back("-v"); + + // Pass -fexceptions through to the linker if it was present. + if (Args.hasFlag(options::OPT_fexceptions, options::OPT_fno_exceptions, + false)) + CmdArgs.push_back("-fexceptions"); + + AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs, JA); + + const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("xcc")); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +/// XCore tool chain +XCoreToolChain::XCoreToolChain(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : ToolChain(D, Triple, Args) { + // ProgramPaths are found via 'PATH' environment variable. +} + +Tool *XCoreToolChain::buildAssembler() const { + return new tools::XCore::Assembler(*this); +} + +Tool *XCoreToolChain::buildLinker() const { + return new tools::XCore::Linker(*this); +} + +bool XCoreToolChain::isPICDefault() const { return false; } + +bool XCoreToolChain::isPIEDefault() const { return false; } + +bool XCoreToolChain::isPICDefaultForced() const { return false; } + +bool XCoreToolChain::SupportsProfiling() const { return false; } + +bool XCoreToolChain::hasBlocksRuntime() const { return false; } + +void XCoreToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc) || + DriverArgs.hasArg(options::OPT_nostdlibinc)) + return; + if (const char *cl_include_dir = getenv("XCC_C_INCLUDE_PATH")) { + SmallVector<StringRef, 4> Dirs; + const char EnvPathSeparatorStr[] = {llvm::sys::EnvPathSeparator, '\0'}; + StringRef(cl_include_dir).split(Dirs, StringRef(EnvPathSeparatorStr)); + ArrayRef<StringRef> DirVec(Dirs); + addSystemIncludes(DriverArgs, CC1Args, DirVec); + } +} + +void XCoreToolChain::addClangTargetOptions(const ArgList &DriverArgs, + ArgStringList &CC1Args, + Action::OffloadKind) const { + CC1Args.push_back("-nostdsysteminc"); +} + +void XCoreToolChain::AddClangCXXStdlibIncludeArgs( + const ArgList &DriverArgs, ArgStringList &CC1Args) const { + if (DriverArgs.hasArg(clang::driver::options::OPT_nostdinc) || + DriverArgs.hasArg(options::OPT_nostdlibinc) || + DriverArgs.hasArg(options::OPT_nostdincxx)) + return; + if (const char *cl_include_dir = getenv("XCC_CPLUS_INCLUDE_PATH")) { + SmallVector<StringRef, 4> Dirs; + const char EnvPathSeparatorStr[] = {llvm::sys::EnvPathSeparator, '\0'}; + StringRef(cl_include_dir).split(Dirs, StringRef(EnvPathSeparatorStr)); + ArrayRef<StringRef> DirVec(Dirs); + addSystemIncludes(DriverArgs, CC1Args, DirVec); + } +} + +void XCoreToolChain::AddCXXStdlibLibArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + // We don't output any lib args. This is handled by xcc. +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains/XCore.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains/XCore.h new file mode 100644 index 0000000..00c89bd --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains/XCore.h @@ -0,0 +1,83 @@ +//===--- XCore.h - XCore ToolChain Implementations --------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_XCORE_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_XCORE_H + +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" + +namespace clang { +namespace driver { +namespace tools { + +namespace XCore { +// For XCore, we do not need to instantiate tools for PreProcess, PreCompile and +// Compile. +// We simply use "clang -cc1" for those actions. +class LLVM_LIBRARY_VISIBILITY Assembler : public Tool { +public: + Assembler(const ToolChain &TC) : Tool("XCore::Assembler", "XCore-as", TC) {} + + bool hasIntegratedCPP() const override { return false; } + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; + +class LLVM_LIBRARY_VISIBILITY Linker : public Tool { +public: + Linker(const ToolChain &TC) : Tool("XCore::Linker", "XCore-ld", TC) {} + + bool hasIntegratedCPP() const override { return false; } + bool isLinkJob() const override { return true; } + void ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const llvm::opt::ArgList &TCArgs, + const char *LinkingOutput) const override; +}; +} // end namespace XCore. +} // end namespace tools + +namespace toolchains { + +class LLVM_LIBRARY_VISIBILITY XCoreToolChain : public ToolChain { +public: + XCoreToolChain(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + +protected: + Tool *buildAssembler() const override; + Tool *buildLinker() const override; + +public: + bool isPICDefault() const override; + bool isPIEDefault() const override; + bool isPICDefaultForced() const override; + bool SupportsProfiling() const override; + bool hasBlocksRuntime() const override; + void + AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + void addClangTargetOptions(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args, + Action::OffloadKind DeviceOffloadKind) const override; + void AddClangCXXStdlibIncludeArgs( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + void AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const override; +}; + +} // end namespace toolchains +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_XCORE_H |
