diff options
Diffstat (limited to 'contrib/llvm/tools/clang/lib/Driver')
19 files changed, 23495 insertions, 0 deletions
diff --git a/contrib/llvm/tools/clang/lib/Driver/Action.cpp b/contrib/llvm/tools/clang/lib/Driver/Action.cpp new file mode 100644 index 0000000..49dccd2 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/Action.cpp @@ -0,0 +1,165 @@ +//===--- Action.cpp - Abstract compilation steps --------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "clang/Driver/Action.h" +#include "llvm/Support/ErrorHandling.h" +#include <cassert> +using namespace clang::driver; +using namespace llvm::opt; + +Action::~Action() { + if (OwnsInputs) { + for (iterator it = begin(), ie = end(); it != ie; ++it) + delete *it; + } +} + +const char *Action::getClassName(ActionClass AC) { + switch (AC) { + case InputClass: return "input"; + case BindArchClass: return "bind-arch"; + case CudaDeviceClass: return "cuda-device"; + case CudaHostClass: return "cuda-host"; + case PreprocessJobClass: return "preprocessor"; + case PrecompileJobClass: return "precompiler"; + case AnalyzeJobClass: return "analyzer"; + case MigrateJobClass: return "migrator"; + case CompileJobClass: return "compiler"; + case BackendJobClass: return "backend"; + case AssembleJobClass: return "assembler"; + case LinkJobClass: return "linker"; + case LipoJobClass: return "lipo"; + case DsymutilJobClass: return "dsymutil"; + case VerifyDebugInfoJobClass: return "verify-debug-info"; + case VerifyPCHJobClass: return "verify-pch"; + } + + llvm_unreachable("invalid class"); +} + +void InputAction::anchor() {} + +InputAction::InputAction(const Arg &_Input, types::ID _Type) + : Action(InputClass, _Type), Input(_Input) { +} + +void BindArchAction::anchor() {} + +BindArchAction::BindArchAction(std::unique_ptr<Action> Input, + const char *_ArchName) + : Action(BindArchClass, std::move(Input)), ArchName(_ArchName) {} + +void CudaDeviceAction::anchor() {} + +CudaDeviceAction::CudaDeviceAction(std::unique_ptr<Action> Input, + const char *ArchName, bool AtTopLevel) + : Action(CudaDeviceClass, std::move(Input)), GpuArchName(ArchName), + AtTopLevel(AtTopLevel) {} + +void CudaHostAction::anchor() {} + +CudaHostAction::CudaHostAction(std::unique_ptr<Action> Input, + const ActionList &DeviceActions) + : Action(CudaHostClass, std::move(Input)), DeviceActions(DeviceActions) {} + +CudaHostAction::~CudaHostAction() { + for (auto &DA : DeviceActions) + delete DA; +} + +void JobAction::anchor() {} + +JobAction::JobAction(ActionClass Kind, std::unique_ptr<Action> Input, + types::ID Type) + : Action(Kind, std::move(Input), Type) {} + +JobAction::JobAction(ActionClass Kind, const ActionList &Inputs, types::ID Type) + : Action(Kind, Inputs, Type) { +} + +void PreprocessJobAction::anchor() {} + +PreprocessJobAction::PreprocessJobAction(std::unique_ptr<Action> Input, + types::ID OutputType) + : JobAction(PreprocessJobClass, std::move(Input), OutputType) {} + +void PrecompileJobAction::anchor() {} + +PrecompileJobAction::PrecompileJobAction(std::unique_ptr<Action> Input, + types::ID OutputType) + : JobAction(PrecompileJobClass, std::move(Input), OutputType) {} + +void AnalyzeJobAction::anchor() {} + +AnalyzeJobAction::AnalyzeJobAction(std::unique_ptr<Action> Input, + types::ID OutputType) + : JobAction(AnalyzeJobClass, std::move(Input), OutputType) {} + +void MigrateJobAction::anchor() {} + +MigrateJobAction::MigrateJobAction(std::unique_ptr<Action> Input, + types::ID OutputType) + : JobAction(MigrateJobClass, std::move(Input), OutputType) {} + +void CompileJobAction::anchor() {} + +CompileJobAction::CompileJobAction(std::unique_ptr<Action> Input, + types::ID OutputType) + : JobAction(CompileJobClass, std::move(Input), OutputType) {} + +void BackendJobAction::anchor() {} + +BackendJobAction::BackendJobAction(std::unique_ptr<Action> Input, + types::ID OutputType) + : JobAction(BackendJobClass, std::move(Input), OutputType) {} + +void AssembleJobAction::anchor() {} + +AssembleJobAction::AssembleJobAction(std::unique_ptr<Action> Input, + types::ID OutputType) + : JobAction(AssembleJobClass, std::move(Input), OutputType) {} + +void LinkJobAction::anchor() {} + +LinkJobAction::LinkJobAction(ActionList &Inputs, types::ID Type) + : JobAction(LinkJobClass, Inputs, Type) { +} + +void LipoJobAction::anchor() {} + +LipoJobAction::LipoJobAction(ActionList &Inputs, types::ID Type) + : JobAction(LipoJobClass, Inputs, Type) { +} + +void DsymutilJobAction::anchor() {} + +DsymutilJobAction::DsymutilJobAction(ActionList &Inputs, types::ID Type) + : JobAction(DsymutilJobClass, Inputs, Type) { +} + +void VerifyJobAction::anchor() {} + +VerifyJobAction::VerifyJobAction(ActionClass Kind, + std::unique_ptr<Action> Input, types::ID Type) + : JobAction(Kind, std::move(Input), Type) { + assert((Kind == VerifyDebugInfoJobClass || Kind == VerifyPCHJobClass) && + "ActionClass is not a valid VerifyJobAction"); +} + +void VerifyDebugInfoJobAction::anchor() {} + +VerifyDebugInfoJobAction::VerifyDebugInfoJobAction( + std::unique_ptr<Action> Input, types::ID Type) + : VerifyJobAction(VerifyDebugInfoJobClass, std::move(Input), Type) {} + +void VerifyPCHJobAction::anchor() {} + +VerifyPCHJobAction::VerifyPCHJobAction(std::unique_ptr<Action> Input, + types::ID Type) + : VerifyJobAction(VerifyPCHJobClass, std::move(Input), Type) {} diff --git a/contrib/llvm/tools/clang/lib/Driver/Compilation.cpp b/contrib/llvm/tools/clang/lib/Driver/Compilation.cpp new file mode 100644 index 0000000..e4af2a6 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/Compilation.cpp @@ -0,0 +1,238 @@ +//===--- Compilation.cpp - Compilation Task Implementation ----------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "clang/Driver/Compilation.h" +#include "clang/Driver/Action.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Options.h" +#include "clang/Driver/ToolChain.h" +#include "llvm/ADT/STLExtras.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Support/FileSystem.h" +#include "llvm/Support/raw_ostream.h" + +using namespace clang::driver; +using namespace clang; +using namespace llvm::opt; + +Compilation::Compilation(const Driver &D, const ToolChain &_DefaultToolChain, + InputArgList *_Args, DerivedArgList *_TranslatedArgs) + : TheDriver(D), DefaultToolChain(_DefaultToolChain), + CudaHostToolChain(&DefaultToolChain), CudaDeviceToolChain(nullptr), + Args(_Args), TranslatedArgs(_TranslatedArgs), Redirects(nullptr), + ForDiagnostics(false) {} + +Compilation::~Compilation() { + delete TranslatedArgs; + delete Args; + + // Free any derived arg lists. + for (llvm::DenseMap<std::pair<const ToolChain*, const char*>, + DerivedArgList*>::iterator it = TCArgs.begin(), + ie = TCArgs.end(); it != ie; ++it) + if (it->second != TranslatedArgs) + delete it->second; + + // Free the actions, if built. + for (ActionList::iterator it = Actions.begin(), ie = Actions.end(); + it != ie; ++it) + delete *it; + + // Free redirections of stdout/stderr. + if (Redirects) { + delete Redirects[1]; + delete Redirects[2]; + delete [] Redirects; + } +} + +const DerivedArgList &Compilation::getArgsForToolChain(const ToolChain *TC, + const char *BoundArch) { + if (!TC) + TC = &DefaultToolChain; + + DerivedArgList *&Entry = TCArgs[std::make_pair(TC, BoundArch)]; + if (!Entry) { + Entry = TC->TranslateArgs(*TranslatedArgs, BoundArch); + if (!Entry) + Entry = TranslatedArgs; + } + + return *Entry; +} + +bool Compilation::CleanupFile(const char *File, bool IssueErrors) const { + // FIXME: Why are we trying to remove files that we have not created? For + // example we should only try to remove a temporary assembly file if + // "clang -cc1" succeed in writing it. Was this a workaround for when + // clang was writing directly to a .s file and sometimes leaving it behind + // during a failure? + + // FIXME: If this is necessary, we can still try to split + // llvm::sys::fs::remove into a removeFile and a removeDir and avoid the + // duplicated stat from is_regular_file. + + // Don't try to remove files which we don't have write access to (but may be + // able to remove), or non-regular files. Underlying tools may have + // intentionally not overwritten them. + if (!llvm::sys::fs::can_write(File) || !llvm::sys::fs::is_regular_file(File)) + return true; + + if (std::error_code EC = llvm::sys::fs::remove(File)) { + // Failure is only failure if the file exists and is "regular". We checked + // for it being regular before, and llvm::sys::fs::remove ignores ENOENT, + // so we don't need to check again. + + if (IssueErrors) + getDriver().Diag(clang::diag::err_drv_unable_to_remove_file) + << EC.message(); + return false; + } + return true; +} + +bool Compilation::CleanupFileList(const ArgStringList &Files, + bool IssueErrors) const { + bool Success = true; + for (ArgStringList::const_iterator + it = Files.begin(), ie = Files.end(); it != ie; ++it) + Success &= CleanupFile(*it, IssueErrors); + return Success; +} + +bool Compilation::CleanupFileMap(const ArgStringMap &Files, + const JobAction *JA, + bool IssueErrors) const { + bool Success = true; + for (ArgStringMap::const_iterator + it = Files.begin(), ie = Files.end(); it != ie; ++it) { + + // If specified, only delete the files associated with the JobAction. + // Otherwise, delete all files in the map. + if (JA && it->first != JA) + continue; + Success &= CleanupFile(it->second, IssueErrors); + } + return Success; +} + +int Compilation::ExecuteCommand(const Command &C, + const Command *&FailingCommand) const { + if ((getDriver().CCPrintOptions || + getArgs().hasArg(options::OPT_v)) && !getDriver().CCGenDiagnostics) { + raw_ostream *OS = &llvm::errs(); + + // Follow gcc implementation of CC_PRINT_OPTIONS; we could also cache the + // output stream. + if (getDriver().CCPrintOptions && getDriver().CCPrintOptionsFilename) { + std::error_code EC; + OS = new llvm::raw_fd_ostream(getDriver().CCPrintOptionsFilename, EC, + llvm::sys::fs::F_Append | + llvm::sys::fs::F_Text); + if (EC) { + getDriver().Diag(clang::diag::err_drv_cc_print_options_failure) + << EC.message(); + FailingCommand = &C; + delete OS; + return 1; + } + } + + if (getDriver().CCPrintOptions) + *OS << "[Logging clang options]"; + + C.Print(*OS, "\n", /*Quote=*/getDriver().CCPrintOptions); + + if (OS != &llvm::errs()) + delete OS; + } + + std::string Error; + bool ExecutionFailed; + int Res = C.Execute(Redirects, &Error, &ExecutionFailed); + if (!Error.empty()) { + assert(Res && "Error string set with 0 result code!"); + getDriver().Diag(clang::diag::err_drv_command_failure) << Error; + } + + if (Res) + FailingCommand = &C; + + return ExecutionFailed ? 1 : Res; +} + +typedef SmallVectorImpl< std::pair<int, const Command *> > FailingCommandList; + +static bool ActionFailed(const Action *A, + const FailingCommandList &FailingCommands) { + + if (FailingCommands.empty()) + return false; + + for (FailingCommandList::const_iterator CI = FailingCommands.begin(), + CE = FailingCommands.end(); CI != CE; ++CI) + if (A == &(CI->second->getSource())) + return true; + + for (Action::const_iterator AI = A->begin(), AE = A->end(); AI != AE; ++AI) + if (ActionFailed(*AI, FailingCommands)) + return true; + + return false; +} + +static bool InputsOk(const Command &C, + const FailingCommandList &FailingCommands) { + return !ActionFailed(&C.getSource(), FailingCommands); +} + +void Compilation::ExecuteJobs(const JobList &Jobs, + FailingCommandList &FailingCommands) const { + for (const auto &Job : Jobs) { + if (!InputsOk(Job, FailingCommands)) + continue; + const Command *FailingCommand = nullptr; + if (int Res = ExecuteCommand(Job, FailingCommand)) + FailingCommands.push_back(std::make_pair(Res, FailingCommand)); + } +} + +void Compilation::initCompilationForDiagnostics() { + ForDiagnostics = true; + + // Free actions and jobs. + DeleteContainerPointers(Actions); + Jobs.clear(); + + // Clear temporary/results file lists. + TempFiles.clear(); + ResultFiles.clear(); + FailureResultFiles.clear(); + + // Remove any user specified output. Claim any unclaimed arguments, so as + // to avoid emitting warnings about unused args. + OptSpecifier OutputOpts[] = { options::OPT_o, options::OPT_MD, + options::OPT_MMD }; + for (unsigned i = 0, e = llvm::array_lengthof(OutputOpts); i != e; ++i) { + if (TranslatedArgs->hasArg(OutputOpts[i])) + TranslatedArgs->eraseArg(OutputOpts[i]); + } + TranslatedArgs->ClaimAllArgs(); + + // Redirect stdout/stderr to /dev/null. + Redirects = new const StringRef*[3](); + Redirects[0] = nullptr; + Redirects[1] = new StringRef(); + Redirects[2] = new StringRef(); +} + +StringRef Compilation::getSysRoot() const { + return getDriver().SysRoot; +} diff --git a/contrib/llvm/tools/clang/lib/Driver/CrossWindowsToolChain.cpp b/contrib/llvm/tools/clang/lib/Driver/CrossWindowsToolChain.cpp new file mode 100644 index 0000000..57bf896 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/CrossWindowsToolChain.cpp @@ -0,0 +1,122 @@ +//===--- 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 "ToolChains.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/Options.h" +#include "llvm/Option/ArgList.h" + +using namespace clang::driver; +using namespace clang::driver::toolchains; + +CrossWindowsToolChain::CrossWindowsToolChain(const Driver &D, + const llvm::Triple &T, + const llvm::opt::ArgList &Args) + : Generic_GCC(D, T, Args) { + if (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 { + // 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; + + if (DriverArgs.hasArg(options::OPT_nostdlibinc)) + 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); + } + 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_nostdlibinc) || + 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/Driver.cpp b/contrib/llvm/tools/clang/lib/Driver/Driver.cpp new file mode 100644 index 0000000..4f8481c --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/Driver.cpp @@ -0,0 +1,2407 @@ +//===--- Driver.cpp - Clang GCC Compatible Driver -------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "clang/Driver/Driver.h" +#include "InputInfo.h" +#include "ToolChains.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/DriverDiagnostic.h" +#include "clang/Driver/Job.h" +#include "clang/Driver/Options.h" +#include "clang/Driver/SanitizerArgs.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" +#include "llvm/ADT/ArrayRef.h" +#include "llvm/ADT/STLExtras.h" +#include "llvm/ADT/StringExtras.h" +#include "llvm/ADT/StringSet.h" +#include "llvm/ADT/StringSwitch.h" +#include "llvm/Option/Arg.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Option/OptSpecifier.h" +#include "llvm/Option/OptTable.h" +#include "llvm/Option/Option.h" +#include "llvm/Support/Debug.h" +#include "llvm/Support/ErrorHandling.h" +#include "llvm/Support/FileSystem.h" +#include "llvm/Support/Path.h" +#include "llvm/Support/PrettyStackTrace.h" +#include "llvm/Support/Process.h" +#include "llvm/Support/Program.h" +#include "llvm/Support/raw_ostream.h" +#include <map> +#include <memory> + +using namespace clang::driver; +using namespace clang; +using namespace llvm::opt; + +Driver::Driver(StringRef ClangExecutable, StringRef DefaultTargetTriple, + DiagnosticsEngine &Diags, + IntrusiveRefCntPtr<vfs::FileSystem> VFS) + : Opts(createDriverOptTable()), Diags(Diags), VFS(VFS), Mode(GCCMode), + SaveTemps(SaveTempsNone), LTOMode(LTOK_None), + ClangExecutable(ClangExecutable), + SysRoot(DEFAULT_SYSROOT), UseStdLib(true), + DefaultTargetTriple(DefaultTargetTriple), + DriverTitle("clang LLVM compiler"), CCPrintOptionsFilename(nullptr), + CCPrintHeadersFilename(nullptr), CCLogDiagnosticsFilename(nullptr), + CCCPrintBindings(false), CCPrintHeaders(false), CCLogDiagnostics(false), + CCGenDiagnostics(false), CCCGenericGCCName(""), CheckInputsExist(true), + CCCUsePCH(true), SuppressMissingInputWarning(false) { + + // Provide a sane fallback if no VFS is specified. + if (!this->VFS) + this->VFS = vfs::getRealFileSystem(); + + Name = llvm::sys::path::filename(ClangExecutable); + Dir = llvm::sys::path::parent_path(ClangExecutable); + InstalledDir = Dir; // Provide a sensible default installed dir. + + // Compute the path to the resource directory. + StringRef ClangResourceDir(CLANG_RESOURCE_DIR); + SmallString<128> P(Dir); + if (ClangResourceDir != "") { + llvm::sys::path::append(P, ClangResourceDir); + } else { + StringRef ClangLibdirSuffix(CLANG_LIBDIR_SUFFIX); + llvm::sys::path::append(P, "..", Twine("lib") + ClangLibdirSuffix, "clang", + CLANG_VERSION_STRING); + } + ResourceDir = P.str(); +} + +Driver::~Driver() { + delete Opts; + + llvm::DeleteContainerSeconds(ToolChains); +} + +void Driver::ParseDriverMode(ArrayRef<const char *> Args) { + const std::string OptName = + getOpts().getOption(options::OPT_driver_mode).getPrefixedName(); + + for (const char *ArgPtr : Args) { + // Ingore nullptrs, they are response file's EOL markers + if (ArgPtr == nullptr) + continue; + const StringRef Arg = ArgPtr; + if (!Arg.startswith(OptName)) + continue; + + const StringRef Value = Arg.drop_front(OptName.size()); + const unsigned M = llvm::StringSwitch<unsigned>(Value) + .Case("gcc", GCCMode) + .Case("g++", GXXMode) + .Case("cpp", CPPMode) + .Case("cl", CLMode) + .Default(~0U); + + if (M != ~0U) + Mode = static_cast<DriverMode>(M); + else + Diag(diag::err_drv_unsupported_option_argument) << OptName << Value; + } +} + +InputArgList Driver::ParseArgStrings(ArrayRef<const char *> ArgStrings) { + llvm::PrettyStackTraceString CrashInfo("Command line argument parsing"); + + unsigned IncludedFlagsBitmask; + unsigned ExcludedFlagsBitmask; + std::tie(IncludedFlagsBitmask, ExcludedFlagsBitmask) = + getIncludeExcludeOptionFlagMasks(); + + unsigned MissingArgIndex, MissingArgCount; + InputArgList Args = + getOpts().ParseArgs(ArgStrings, MissingArgIndex, MissingArgCount, + IncludedFlagsBitmask, ExcludedFlagsBitmask); + + // Check for missing argument error. + if (MissingArgCount) + Diag(clang::diag::err_drv_missing_argument) + << Args.getArgString(MissingArgIndex) << MissingArgCount; + + // Check for unsupported options. + for (const Arg *A : Args) { + if (A->getOption().hasFlag(options::Unsupported)) { + Diag(clang::diag::err_drv_unsupported_opt) << A->getAsString(Args); + continue; + } + + // Warn about -mcpu= without an argument. + if (A->getOption().matches(options::OPT_mcpu_EQ) && A->containsValue("")) { + Diag(clang::diag::warn_drv_empty_joined_argument) << A->getAsString(Args); + } + } + + for (const Arg *A : Args.filtered(options::OPT_UNKNOWN)) + Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); + + return Args; +} + +// Determine which compilation mode we are in. We look for options which +// affect the phase, starting with the earliest phases, and record which +// option we used to determine the final phase. +phases::ID Driver::getFinalPhase(const DerivedArgList &DAL, + Arg **FinalPhaseArg) const { + Arg *PhaseArg = nullptr; + phases::ID FinalPhase; + + // -{E,EP,P,M,MM} only run the preprocessor. + if (CCCIsCPP() || (PhaseArg = DAL.getLastArg(options::OPT_E)) || + (PhaseArg = DAL.getLastArg(options::OPT__SLASH_EP)) || + (PhaseArg = DAL.getLastArg(options::OPT_M, options::OPT_MM)) || + (PhaseArg = DAL.getLastArg(options::OPT__SLASH_P))) { + FinalPhase = phases::Preprocess; + + // -{fsyntax-only,-analyze,emit-ast} only run up to the compiler. + } else if ((PhaseArg = DAL.getLastArg(options::OPT_fsyntax_only)) || + (PhaseArg = DAL.getLastArg(options::OPT_module_file_info)) || + (PhaseArg = DAL.getLastArg(options::OPT_verify_pch)) || + (PhaseArg = DAL.getLastArg(options::OPT_rewrite_objc)) || + (PhaseArg = DAL.getLastArg(options::OPT_rewrite_legacy_objc)) || + (PhaseArg = DAL.getLastArg(options::OPT__migrate)) || + (PhaseArg = DAL.getLastArg(options::OPT__analyze, + options::OPT__analyze_auto)) || + (PhaseArg = DAL.getLastArg(options::OPT_emit_ast))) { + FinalPhase = phases::Compile; + + // -S only runs up to the backend. + } else if ((PhaseArg = DAL.getLastArg(options::OPT_S))) { + FinalPhase = phases::Backend; + + // -c compilation only runs up to the assembler. + } else if ((PhaseArg = DAL.getLastArg(options::OPT_c))) { + FinalPhase = phases::Assemble; + + // Otherwise do everything. + } else + FinalPhase = phases::Link; + + if (FinalPhaseArg) + *FinalPhaseArg = PhaseArg; + + return FinalPhase; +} + +static Arg *MakeInputArg(DerivedArgList &Args, OptTable *Opts, + StringRef Value) { + Arg *A = new Arg(Opts->getOption(options::OPT_INPUT), Value, + Args.getBaseArgs().MakeIndex(Value), Value.data()); + Args.AddSynthesizedArg(A); + A->claim(); + return A; +} + +DerivedArgList *Driver::TranslateInputArgs(const InputArgList &Args) const { + DerivedArgList *DAL = new DerivedArgList(Args); + + bool HasNostdlib = Args.hasArg(options::OPT_nostdlib); + bool HasNodefaultlib = Args.hasArg(options::OPT_nodefaultlibs); + for (Arg *A : Args) { + // Unfortunately, we have to parse some forwarding options (-Xassembler, + // -Xlinker, -Xpreprocessor) because we either integrate their functionality + // (assembler and preprocessor), or bypass a previous driver ('collect2'). + + // Rewrite linker options, to replace --no-demangle with a custom internal + // option. + if ((A->getOption().matches(options::OPT_Wl_COMMA) || + A->getOption().matches(options::OPT_Xlinker)) && + A->containsValue("--no-demangle")) { + // Add the rewritten no-demangle argument. + DAL->AddFlagArg(A, Opts->getOption(options::OPT_Z_Xlinker__no_demangle)); + + // Add the remaining values as Xlinker arguments. + for (StringRef Val : A->getValues()) + if (Val != "--no-demangle") + DAL->AddSeparateArg(A, Opts->getOption(options::OPT_Xlinker), Val); + + continue; + } + + // Rewrite preprocessor options, to replace -Wp,-MD,FOO which is used by + // some build systems. We don't try to be complete here because we don't + // care to encourage this usage model. + if (A->getOption().matches(options::OPT_Wp_COMMA) && + (A->getValue(0) == StringRef("-MD") || + A->getValue(0) == StringRef("-MMD"))) { + // Rewrite to -MD/-MMD along with -MF. + if (A->getValue(0) == StringRef("-MD")) + DAL->AddFlagArg(A, Opts->getOption(options::OPT_MD)); + else + DAL->AddFlagArg(A, Opts->getOption(options::OPT_MMD)); + if (A->getNumValues() == 2) + DAL->AddSeparateArg(A, Opts->getOption(options::OPT_MF), + A->getValue(1)); + continue; + } + + // Rewrite reserved library names. + if (A->getOption().matches(options::OPT_l)) { + StringRef Value = A->getValue(); + + // Rewrite unless -nostdlib is present. + if (!HasNostdlib && !HasNodefaultlib && Value == "stdc++") { + DAL->AddFlagArg(A, Opts->getOption(options::OPT_Z_reserved_lib_stdcxx)); + continue; + } + + // Rewrite unconditionally. + if (Value == "cc_kext") { + DAL->AddFlagArg(A, Opts->getOption(options::OPT_Z_reserved_lib_cckext)); + continue; + } + } + + // Pick up inputs via the -- option. + if (A->getOption().matches(options::OPT__DASH_DASH)) { + A->claim(); + for (StringRef Val : A->getValues()) + DAL->append(MakeInputArg(*DAL, Opts, Val)); + continue; + } + + DAL->append(A); + } + +// Add a default value of -mlinker-version=, if one was given and the user +// didn't specify one. +#if defined(HOST_LINK_VERSION) + if (!Args.hasArg(options::OPT_mlinker_version_EQ) && + strlen(HOST_LINK_VERSION) > 0) { + DAL->AddJoinedArg(0, Opts->getOption(options::OPT_mlinker_version_EQ), + HOST_LINK_VERSION); + DAL->getLastArg(options::OPT_mlinker_version_EQ)->claim(); + } +#endif + + return DAL; +} + +/// \brief Compute target triple from args. +/// +/// This routine provides the logic to compute a target triple from various +/// args passed to the driver and the default triple string. +static llvm::Triple computeTargetTriple(StringRef DefaultTargetTriple, + const ArgList &Args, + StringRef DarwinArchName = "") { + // FIXME: Already done in Compilation *Driver::BuildCompilation + if (const Arg *A = Args.getLastArg(options::OPT_target)) + DefaultTargetTriple = A->getValue(); + + llvm::Triple Target(llvm::Triple::normalize(DefaultTargetTriple)); + + // Handle Apple-specific options available here. + if (Target.isOSBinFormatMachO()) { + // If an explict Darwin arch name is given, that trumps all. + if (!DarwinArchName.empty()) { + tools::darwin::setTripleTypeForMachOArchName(Target, DarwinArchName); + return Target; + } + + // Handle the Darwin '-arch' flag. + if (Arg *A = Args.getLastArg(options::OPT_arch)) { + StringRef ArchName = A->getValue(); + tools::darwin::setTripleTypeForMachOArchName(Target, ArchName); + } + } + + // Handle pseudo-target flags '-mlittle-endian'/'-EL' and + // '-mbig-endian'/'-EB'. + if (Arg *A = Args.getLastArg(options::OPT_mlittle_endian, + options::OPT_mbig_endian)) { + if (A->getOption().matches(options::OPT_mlittle_endian)) { + llvm::Triple LE = Target.getLittleEndianArchVariant(); + if (LE.getArch() != llvm::Triple::UnknownArch) + Target = std::move(LE); + } else { + llvm::Triple BE = Target.getBigEndianArchVariant(); + if (BE.getArch() != llvm::Triple::UnknownArch) + Target = std::move(BE); + } + } + + // Skip further flag support on OSes which don't support '-m32' or '-m64'. + if (Target.getArch() == llvm::Triple::tce || + Target.getOS() == llvm::Triple::Minix) + return Target; + + // Handle pseudo-target flags '-m64', '-mx32', '-m32' and '-m16'. + if (Arg *A = Args.getLastArg(options::OPT_m64, options::OPT_mx32, + options::OPT_m32, options::OPT_m16)) { + llvm::Triple::ArchType AT = llvm::Triple::UnknownArch; + + if (A->getOption().matches(options::OPT_m64)) { + AT = Target.get64BitArchVariant().getArch(); + if (Target.getEnvironment() == llvm::Triple::GNUX32) + Target.setEnvironment(llvm::Triple::GNU); + } else if (A->getOption().matches(options::OPT_mx32) && + Target.get64BitArchVariant().getArch() == llvm::Triple::x86_64) { + AT = llvm::Triple::x86_64; + Target.setEnvironment(llvm::Triple::GNUX32); + } else if (A->getOption().matches(options::OPT_m32)) { + AT = Target.get32BitArchVariant().getArch(); + if (Target.getEnvironment() == llvm::Triple::GNUX32) + Target.setEnvironment(llvm::Triple::GNU); + } else if (A->getOption().matches(options::OPT_m16) && + Target.get32BitArchVariant().getArch() == llvm::Triple::x86) { + AT = llvm::Triple::x86; + Target.setEnvironment(llvm::Triple::CODE16); + } + + if (AT != llvm::Triple::UnknownArch && AT != Target.getArch()) + Target.setArch(AT); + } + + return Target; +} + +// \brief Parse the LTO options and record the type of LTO compilation +// based on which -f(no-)?lto(=.*)? option occurs last. +void Driver::setLTOMode(const llvm::opt::ArgList &Args) { + LTOMode = LTOK_None; + if (!Args.hasFlag(options::OPT_flto, options::OPT_flto_EQ, + options::OPT_fno_lto, false)) + return; + + StringRef LTOName("full"); + + const Arg *A = Args.getLastArg(options::OPT_flto_EQ); + if (A) + LTOName = A->getValue(); + + LTOMode = llvm::StringSwitch<LTOKind>(LTOName) + .Case("full", LTOK_Full) + .Case("thin", LTOK_Thin) + .Default(LTOK_Unknown); + + if (LTOMode == LTOK_Unknown) { + assert(A); + Diag(diag::err_drv_unsupported_option_argument) << A->getOption().getName() + << A->getValue(); + } +} + +Compilation *Driver::BuildCompilation(ArrayRef<const char *> ArgList) { + llvm::PrettyStackTraceString CrashInfo("Compilation construction"); + + // FIXME: Handle environment options which affect driver behavior, somewhere + // (client?). GCC_EXEC_PREFIX, LPATH, CC_PRINT_OPTIONS. + + if (char *env = ::getenv("COMPILER_PATH")) { + StringRef CompilerPath = env; + while (!CompilerPath.empty()) { + std::pair<StringRef, StringRef> Split = + CompilerPath.split(llvm::sys::EnvPathSeparator); + PrefixDirs.push_back(Split.first); + CompilerPath = Split.second; + } + } + + // We look for the driver mode option early, because the mode can affect + // how other options are parsed. + ParseDriverMode(ArgList.slice(1)); + + // FIXME: What are we going to do with -V and -b? + + // FIXME: This stuff needs to go into the Compilation, not the driver. + bool CCCPrintPhases; + + InputArgList Args = ParseArgStrings(ArgList.slice(1)); + + // Silence driver warnings if requested + Diags.setIgnoreAllWarnings(Args.hasArg(options::OPT_w)); + + // -no-canonical-prefixes is used very early in main. + Args.ClaimAllArgs(options::OPT_no_canonical_prefixes); + + // Ignore -pipe. + Args.ClaimAllArgs(options::OPT_pipe); + + // Extract -ccc args. + // + // FIXME: We need to figure out where this behavior should live. Most of it + // should be outside in the client; the parts that aren't should have proper + // options, either by introducing new ones or by overloading gcc ones like -V + // or -b. + CCCPrintPhases = Args.hasArg(options::OPT_ccc_print_phases); + CCCPrintBindings = Args.hasArg(options::OPT_ccc_print_bindings); + if (const Arg *A = Args.getLastArg(options::OPT_ccc_gcc_name)) + CCCGenericGCCName = A->getValue(); + CCCUsePCH = + Args.hasFlag(options::OPT_ccc_pch_is_pch, options::OPT_ccc_pch_is_pth); + // FIXME: DefaultTargetTriple is used by the target-prefixed calls to as/ld + // and getToolChain is const. + if (IsCLMode()) { + // clang-cl targets MSVC-style Win32. + llvm::Triple T(DefaultTargetTriple); + T.setOS(llvm::Triple::Win32); + T.setVendor(llvm::Triple::PC); + T.setEnvironment(llvm::Triple::MSVC); + DefaultTargetTriple = T.str(); + } + if (const Arg *A = Args.getLastArg(options::OPT_target)) + DefaultTargetTriple = A->getValue(); + if (const Arg *A = Args.getLastArg(options::OPT_ccc_install_dir)) + Dir = InstalledDir = A->getValue(); + for (const Arg *A : Args.filtered(options::OPT_B)) { + A->claim(); + PrefixDirs.push_back(A->getValue(0)); + } + if (const Arg *A = Args.getLastArg(options::OPT__sysroot_EQ)) + SysRoot = A->getValue(); + if (const Arg *A = Args.getLastArg(options::OPT__dyld_prefix_EQ)) + DyldPrefix = A->getValue(); + if (Args.hasArg(options::OPT_nostdlib)) + UseStdLib = false; + + if (const Arg *A = Args.getLastArg(options::OPT_resource_dir)) + ResourceDir = A->getValue(); + + if (const Arg *A = Args.getLastArg(options::OPT_save_temps_EQ)) { + SaveTemps = llvm::StringSwitch<SaveTempsMode>(A->getValue()) + .Case("cwd", SaveTempsCwd) + .Case("obj", SaveTempsObj) + .Default(SaveTempsCwd); + } + + setLTOMode(Args); + + std::unique_ptr<llvm::opt::InputArgList> UArgs = + llvm::make_unique<InputArgList>(std::move(Args)); + + // Perform the default argument translations. + DerivedArgList *TranslatedArgs = TranslateInputArgs(*UArgs); + + // Owned by the host. + const ToolChain &TC = + getToolChain(*UArgs, computeTargetTriple(DefaultTargetTriple, *UArgs)); + + // The compilation takes ownership of Args. + Compilation *C = new Compilation(*this, TC, UArgs.release(), TranslatedArgs); + + C->setCudaDeviceToolChain( + &getToolChain(C->getArgs(), llvm::Triple(TC.getTriple().isArch64Bit() + ? "nvptx64-nvidia-cuda" + : "nvptx-nvidia-cuda"))); + if (!HandleImmediateArgs(*C)) + return C; + + // Construct the list of inputs. + InputList Inputs; + BuildInputs(C->getDefaultToolChain(), *TranslatedArgs, Inputs); + + // Construct the list of abstract actions to perform for this compilation. On + // MachO targets this uses the driver-driver and universal actions. + if (TC.getTriple().isOSBinFormatMachO()) + BuildUniversalActions(*C, C->getDefaultToolChain(), Inputs); + else + BuildActions(*C, C->getDefaultToolChain(), C->getArgs(), Inputs, + C->getActions()); + + if (CCCPrintPhases) { + PrintActions(*C); + return C; + } + + BuildJobs(*C); + + return C; +} + +static void printArgList(raw_ostream &OS, const llvm::opt::ArgList &Args) { + llvm::opt::ArgStringList ASL; + for (const auto *A : Args) + A->render(Args, ASL); + + for (auto I = ASL.begin(), E = ASL.end(); I != E; ++I) { + if (I != ASL.begin()) + OS << ' '; + Command::printArg(OS, *I, true); + } + OS << '\n'; +} + +// When clang crashes, produce diagnostic information including the fully +// preprocessed source file(s). Request that the developer attach the +// diagnostic information to a bug report. +void Driver::generateCompilationDiagnostics(Compilation &C, + const Command &FailingCommand) { + if (C.getArgs().hasArg(options::OPT_fno_crash_diagnostics)) + return; + + // Don't try to generate diagnostics for link or dsymutil jobs. + if (FailingCommand.getCreator().isLinkJob() || + FailingCommand.getCreator().isDsymutilJob()) + return; + + // Print the version of the compiler. + PrintVersion(C, llvm::errs()); + + Diag(clang::diag::note_drv_command_failed_diag_msg) + << "PLEASE submit a bug report to " BUG_REPORT_URL " and include the " + "crash backtrace, preprocessed source, and associated run script."; + + // Suppress driver output and emit preprocessor output to temp file. + Mode = CPPMode; + CCGenDiagnostics = true; + + // Save the original job command(s). + Command Cmd = FailingCommand; + + // Keep track of whether we produce any errors while trying to produce + // preprocessed sources. + DiagnosticErrorTrap Trap(Diags); + + // Suppress tool output. + C.initCompilationForDiagnostics(); + + // Construct the list of inputs. + InputList Inputs; + BuildInputs(C.getDefaultToolChain(), C.getArgs(), Inputs); + + for (InputList::iterator it = Inputs.begin(), ie = Inputs.end(); it != ie;) { + bool IgnoreInput = false; + + // Ignore input from stdin or any inputs that cannot be preprocessed. + // Check type first as not all linker inputs have a value. + if (types::getPreprocessedType(it->first) == types::TY_INVALID) { + IgnoreInput = true; + } else if (!strcmp(it->second->getValue(), "-")) { + Diag(clang::diag::note_drv_command_failed_diag_msg) + << "Error generating preprocessed source(s) - " + "ignoring input from stdin."; + IgnoreInput = true; + } + + if (IgnoreInput) { + it = Inputs.erase(it); + ie = Inputs.end(); + } else { + ++it; + } + } + + if (Inputs.empty()) { + Diag(clang::diag::note_drv_command_failed_diag_msg) + << "Error generating preprocessed source(s) - " + "no preprocessable inputs."; + return; + } + + // Don't attempt to generate preprocessed files if multiple -arch options are + // used, unless they're all duplicates. + llvm::StringSet<> ArchNames; + for (const Arg *A : C.getArgs()) { + if (A->getOption().matches(options::OPT_arch)) { + StringRef ArchName = A->getValue(); + ArchNames.insert(ArchName); + } + } + if (ArchNames.size() > 1) { + Diag(clang::diag::note_drv_command_failed_diag_msg) + << "Error generating preprocessed source(s) - cannot generate " + "preprocessed source with multiple -arch options."; + return; + } + + // Construct the list of abstract actions to perform for this compilation. On + // Darwin OSes this uses the driver-driver and builds universal actions. + const ToolChain &TC = C.getDefaultToolChain(); + if (TC.getTriple().isOSBinFormatMachO()) + BuildUniversalActions(C, TC, Inputs); + else + BuildActions(C, TC, C.getArgs(), Inputs, C.getActions()); + + BuildJobs(C); + + // If there were errors building the compilation, quit now. + if (Trap.hasErrorOccurred()) { + Diag(clang::diag::note_drv_command_failed_diag_msg) + << "Error generating preprocessed source(s)."; + return; + } + + // Generate preprocessed output. + SmallVector<std::pair<int, const Command *>, 4> FailingCommands; + C.ExecuteJobs(C.getJobs(), FailingCommands); + + // If any of the preprocessing commands failed, clean up and exit. + if (!FailingCommands.empty()) { + if (!isSaveTempsEnabled()) + C.CleanupFileList(C.getTempFiles(), true); + + Diag(clang::diag::note_drv_command_failed_diag_msg) + << "Error generating preprocessed source(s)."; + return; + } + + const ArgStringList &TempFiles = C.getTempFiles(); + if (TempFiles.empty()) { + Diag(clang::diag::note_drv_command_failed_diag_msg) + << "Error generating preprocessed source(s)."; + return; + } + + Diag(clang::diag::note_drv_command_failed_diag_msg) + << "\n********************\n\n" + "PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:\n" + "Preprocessed source(s) and associated run script(s) are located at:"; + + SmallString<128> VFS; + for (const char *TempFile : TempFiles) { + Diag(clang::diag::note_drv_command_failed_diag_msg) << TempFile; + if (StringRef(TempFile).endswith(".cache")) { + // In some cases (modules) we'll dump extra data to help with reproducing + // the crash into a directory next to the output. + VFS = llvm::sys::path::filename(TempFile); + llvm::sys::path::append(VFS, "vfs", "vfs.yaml"); + } + } + + // Assume associated files are based off of the first temporary file. + CrashReportInfo CrashInfo(TempFiles[0], VFS); + + std::string Script = CrashInfo.Filename.rsplit('.').first.str() + ".sh"; + std::error_code EC; + llvm::raw_fd_ostream ScriptOS(Script, EC, llvm::sys::fs::F_Excl); + if (EC) { + Diag(clang::diag::note_drv_command_failed_diag_msg) + << "Error generating run script: " + Script + " " + EC.message(); + } else { + ScriptOS << "# Crash reproducer for " << getClangFullVersion() << "\n" + << "# Driver args: "; + printArgList(ScriptOS, C.getInputArgs()); + ScriptOS << "# Original command: "; + Cmd.Print(ScriptOS, "\n", /*Quote=*/true); + Cmd.Print(ScriptOS, "\n", /*Quote=*/true, &CrashInfo); + Diag(clang::diag::note_drv_command_failed_diag_msg) << Script; + } + + for (const auto &A : C.getArgs().filtered(options::OPT_frewrite_map_file, + options::OPT_frewrite_map_file_EQ)) + Diag(clang::diag::note_drv_command_failed_diag_msg) << A->getValue(); + + Diag(clang::diag::note_drv_command_failed_diag_msg) + << "\n\n********************"; +} + +void Driver::setUpResponseFiles(Compilation &C, Command &Cmd) { + // Since argumentsFitWithinSystemLimits() may underestimate system's capacity + // if the tool does not support response files, there is a chance/ that things + // will just work without a response file, so we silently just skip it. + if (Cmd.getCreator().getResponseFilesSupport() == Tool::RF_None || + llvm::sys::argumentsFitWithinSystemLimits(Cmd.getArguments())) + return; + + std::string TmpName = GetTemporaryPath("response", "txt"); + Cmd.setResponseFile( + C.addTempFile(C.getArgs().MakeArgString(TmpName.c_str()))); +} + +int Driver::ExecuteCompilation( + Compilation &C, + SmallVectorImpl<std::pair<int, const Command *>> &FailingCommands) { + // Just print if -### was present. + if (C.getArgs().hasArg(options::OPT__HASH_HASH_HASH)) { + C.getJobs().Print(llvm::errs(), "\n", true); + return 0; + } + + // If there were errors building the compilation, quit now. + if (Diags.hasErrorOccurred()) + return 1; + + // Set up response file names for each command, if necessary + for (auto &Job : C.getJobs()) + setUpResponseFiles(C, Job); + + C.ExecuteJobs(C.getJobs(), FailingCommands); + + // Remove temp files. + C.CleanupFileList(C.getTempFiles()); + + // If the command succeeded, we are done. + if (FailingCommands.empty()) + return 0; + + // Otherwise, remove result files and print extra information about abnormal + // failures. + for (const auto &CmdPair : FailingCommands) { + int Res = CmdPair.first; + const Command *FailingCommand = CmdPair.second; + + // Remove result files if we're not saving temps. + if (!isSaveTempsEnabled()) { + const JobAction *JA = cast<JobAction>(&FailingCommand->getSource()); + C.CleanupFileMap(C.getResultFiles(), JA, true); + + // Failure result files are valid unless we crashed. + if (Res < 0) + C.CleanupFileMap(C.getFailureResultFiles(), JA, true); + } + + // Print extra information about abnormal failures, if possible. + // + // This is ad-hoc, but we don't want to be excessively noisy. If the result + // status was 1, assume the command failed normally. In particular, if it + // was the compiler then assume it gave a reasonable error code. Failures + // in other tools are less common, and they generally have worse + // diagnostics, so always print the diagnostic there. + const Tool &FailingTool = FailingCommand->getCreator(); + + if (!FailingCommand->getCreator().hasGoodDiagnostics() || Res != 1) { + // FIXME: See FIXME above regarding result code interpretation. + if (Res < 0) + Diag(clang::diag::err_drv_command_signalled) + << FailingTool.getShortName(); + else + Diag(clang::diag::err_drv_command_failed) << FailingTool.getShortName() + << Res; + } + } + return 0; +} + +void Driver::PrintHelp(bool ShowHidden) const { + unsigned IncludedFlagsBitmask; + unsigned ExcludedFlagsBitmask; + std::tie(IncludedFlagsBitmask, ExcludedFlagsBitmask) = + getIncludeExcludeOptionFlagMasks(); + + ExcludedFlagsBitmask |= options::NoDriverOption; + if (!ShowHidden) + ExcludedFlagsBitmask |= HelpHidden; + + getOpts().PrintHelp(llvm::outs(), Name.c_str(), DriverTitle.c_str(), + IncludedFlagsBitmask, ExcludedFlagsBitmask); +} + +void Driver::PrintVersion(const Compilation &C, raw_ostream &OS) const { + // FIXME: The following handlers should use a callback mechanism, we don't + // know what the client would like to do. + OS << getClangFullVersion() << '\n'; + const ToolChain &TC = C.getDefaultToolChain(); + OS << "Target: " << TC.getTripleString() << '\n'; + + // Print the threading model. + if (Arg *A = C.getArgs().getLastArg(options::OPT_mthread_model)) { + // Don't print if the ToolChain would have barfed on it already + if (TC.isThreadModelSupported(A->getValue())) + OS << "Thread model: " << A->getValue(); + } else + OS << "Thread model: " << TC.getThreadModel(); + OS << '\n'; + + // Print out the install directory. + OS << "InstalledDir: " << InstalledDir << '\n'; +} + +/// PrintDiagnosticCategories - Implement the --print-diagnostic-categories +/// option. +static void PrintDiagnosticCategories(raw_ostream &OS) { + // Skip the empty category. + for (unsigned i = 1, max = DiagnosticIDs::getNumberOfCategories(); i != max; + ++i) + OS << i << ',' << DiagnosticIDs::getCategoryNameFromID(i) << '\n'; +} + +bool Driver::HandleImmediateArgs(const Compilation &C) { + // The order these options are handled in gcc is all over the place, but we + // don't expect inconsistencies w.r.t. that to matter in practice. + + if (C.getArgs().hasArg(options::OPT_dumpmachine)) { + llvm::outs() << C.getDefaultToolChain().getTripleString() << '\n'; + return false; + } + + if (C.getArgs().hasArg(options::OPT_dumpversion)) { + // Since -dumpversion is only implemented for pedantic GCC compatibility, we + // return an answer which matches our definition of __VERSION__. + // + // If we want to return a more correct answer some day, then we should + // introduce a non-pedantically GCC compatible mode to Clang in which we + // provide sensible definitions for -dumpversion, __VERSION__, etc. + llvm::outs() << "4.2.1\n"; + return false; + } + + if (C.getArgs().hasArg(options::OPT__print_diagnostic_categories)) { + PrintDiagnosticCategories(llvm::outs()); + return false; + } + + if (C.getArgs().hasArg(options::OPT_help) || + C.getArgs().hasArg(options::OPT__help_hidden)) { + PrintHelp(C.getArgs().hasArg(options::OPT__help_hidden)); + return false; + } + + if (C.getArgs().hasArg(options::OPT__version)) { + // Follow gcc behavior and use stdout for --version and stderr for -v. + PrintVersion(C, llvm::outs()); + return false; + } + + if (C.getArgs().hasArg(options::OPT_v) || + C.getArgs().hasArg(options::OPT__HASH_HASH_HASH)) { + PrintVersion(C, llvm::errs()); + SuppressMissingInputWarning = true; + } + + const ToolChain &TC = C.getDefaultToolChain(); + + if (C.getArgs().hasArg(options::OPT_v)) + TC.printVerboseInfo(llvm::errs()); + + if (C.getArgs().hasArg(options::OPT_print_search_dirs)) { + llvm::outs() << "programs: ="; + bool separator = false; + for (const std::string &Path : TC.getProgramPaths()) { + if (separator) + llvm::outs() << ':'; + llvm::outs() << Path; + separator = true; + } + llvm::outs() << "\n"; + llvm::outs() << "libraries: =" << ResourceDir; + + StringRef sysroot = C.getSysRoot(); + + for (const std::string &Path : TC.getFilePaths()) { + // Always print a separator. ResourceDir was the first item shown. + llvm::outs() << ':'; + // Interpretation of leading '=' is needed only for NetBSD. + if (Path[0] == '=') + llvm::outs() << sysroot << Path.substr(1); + else + llvm::outs() << Path; + } + llvm::outs() << "\n"; + return false; + } + + // FIXME: The following handlers should use a callback mechanism, we don't + // know what the client would like to do. + if (Arg *A = C.getArgs().getLastArg(options::OPT_print_file_name_EQ)) { + llvm::outs() << GetFilePath(A->getValue(), TC) << "\n"; + return false; + } + + if (Arg *A = C.getArgs().getLastArg(options::OPT_print_prog_name_EQ)) { + llvm::outs() << GetProgramPath(A->getValue(), TC) << "\n"; + return false; + } + + if (C.getArgs().hasArg(options::OPT_print_libgcc_file_name)) { + llvm::outs() << GetFilePath("libgcc.a", TC) << "\n"; + return false; + } + + if (C.getArgs().hasArg(options::OPT_print_multi_lib)) { + for (const Multilib &Multilib : TC.getMultilibs()) + llvm::outs() << Multilib << "\n"; + return false; + } + + if (C.getArgs().hasArg(options::OPT_print_multi_directory)) { + for (const Multilib &Multilib : TC.getMultilibs()) { + if (Multilib.gccSuffix().empty()) + llvm::outs() << ".\n"; + else { + StringRef Suffix(Multilib.gccSuffix()); + assert(Suffix.front() == '/'); + llvm::outs() << Suffix.substr(1) << "\n"; + } + } + return false; + } + return true; +} + +// Display an action graph human-readably. Action A is the "sink" node +// and latest-occuring action. Traversal is in pre-order, visiting the +// inputs to each action before printing the action itself. +static unsigned PrintActions1(const Compilation &C, Action *A, + std::map<Action *, unsigned> &Ids) { + if (Ids.count(A)) // A was already visited. + return Ids[A]; + + std::string str; + llvm::raw_string_ostream os(str); + + os << Action::getClassName(A->getKind()) << ", "; + if (InputAction *IA = dyn_cast<InputAction>(A)) { + os << "\"" << IA->getInputArg().getValue() << "\""; + } else if (BindArchAction *BIA = dyn_cast<BindArchAction>(A)) { + os << '"' << BIA->getArchName() << '"' << ", {" + << PrintActions1(C, *BIA->begin(), Ids) << "}"; + } else if (CudaDeviceAction *CDA = dyn_cast<CudaDeviceAction>(A)) { + os << '"' << CDA->getGpuArchName() << '"' << ", {" + << PrintActions1(C, *CDA->begin(), Ids) << "}"; + } else { + const ActionList *AL; + if (CudaHostAction *CHA = dyn_cast<CudaHostAction>(A)) { + os << "{" << PrintActions1(C, *CHA->begin(), Ids) << "}" + << ", gpu binaries "; + AL = &CHA->getDeviceActions(); + } else + AL = &A->getInputs(); + + if (AL->size()) { + const char *Prefix = "{"; + for (Action *PreRequisite : *AL) { + os << Prefix << PrintActions1(C, PreRequisite, Ids); + Prefix = ", "; + } + os << "}"; + } else + os << "{}"; + } + + unsigned Id = Ids.size(); + Ids[A] = Id; + llvm::errs() << Id << ": " << os.str() << ", " + << types::getTypeName(A->getType()) << "\n"; + + return Id; +} + +// Print the action graphs in a compilation C. +// For example "clang -c file1.c file2.c" is composed of two subgraphs. +void Driver::PrintActions(const Compilation &C) const { + std::map<Action *, unsigned> Ids; + for (Action *A : C.getActions()) + PrintActions1(C, A, Ids); +} + +/// \brief Check whether the given input tree contains any compilation or +/// assembly actions. +static bool ContainsCompileOrAssembleAction(const Action *A) { + if (isa<CompileJobAction>(A) || isa<BackendJobAction>(A) || + isa<AssembleJobAction>(A)) + return true; + + for (const Action *Input : *A) + if (ContainsCompileOrAssembleAction(Input)) + return true; + + return false; +} + +void Driver::BuildUniversalActions(Compilation &C, const ToolChain &TC, + const InputList &BAInputs) const { + DerivedArgList &Args = C.getArgs(); + ActionList &Actions = C.getActions(); + llvm::PrettyStackTraceString CrashInfo("Building universal build actions"); + // Collect the list of architectures. Duplicates are allowed, but should only + // be handled once (in the order seen). + llvm::StringSet<> ArchNames; + SmallVector<const char *, 4> Archs; + for (Arg *A : Args) { + if (A->getOption().matches(options::OPT_arch)) { + // Validate the option here; we don't save the type here because its + // particular spelling may participate in other driver choices. + llvm::Triple::ArchType Arch = + tools::darwin::getArchTypeForMachOArchName(A->getValue()); + if (Arch == llvm::Triple::UnknownArch) { + Diag(clang::diag::err_drv_invalid_arch_name) << A->getAsString(Args); + continue; + } + + A->claim(); + if (ArchNames.insert(A->getValue()).second) + Archs.push_back(A->getValue()); + } + } + + // When there is no explicit arch for this platform, make sure we still bind + // the architecture (to the default) so that -Xarch_ is handled correctly. + if (!Archs.size()) + Archs.push_back(Args.MakeArgString(TC.getDefaultUniversalArchName())); + + ActionList SingleActions; + BuildActions(C, TC, Args, BAInputs, SingleActions); + + // Add in arch bindings for every top level action, as well as lipo and + // dsymutil steps if needed. + for (Action* Act : SingleActions) { + // Make sure we can lipo this kind of output. If not (and it is an actual + // output) then we disallow, since we can't create an output file with the + // right name without overwriting it. We could remove this oddity by just + // changing the output names to include the arch, which would also fix + // -save-temps. Compatibility wins for now. + + if (Archs.size() > 1 && !types::canLipoType(Act->getType())) + Diag(clang::diag::err_drv_invalid_output_with_multiple_archs) + << types::getTypeName(Act->getType()); + + ActionList Inputs; + for (unsigned i = 0, e = Archs.size(); i != e; ++i) { + Inputs.push_back( + new BindArchAction(std::unique_ptr<Action>(Act), Archs[i])); + if (i != 0) + Inputs.back()->setOwnsInputs(false); + } + + // Lipo if necessary, we do it this way because we need to set the arch flag + // so that -Xarch_ gets overwritten. + if (Inputs.size() == 1 || Act->getType() == types::TY_Nothing) + Actions.append(Inputs.begin(), Inputs.end()); + else + Actions.push_back(new LipoJobAction(Inputs, Act->getType())); + + // Handle debug info queries. + Arg *A = Args.getLastArg(options::OPT_g_Group); + if (A && !A->getOption().matches(options::OPT_g0) && + !A->getOption().matches(options::OPT_gstabs) && + ContainsCompileOrAssembleAction(Actions.back())) { + + // Add a 'dsymutil' step if necessary, when debug info is enabled and we + // have a compile input. We need to run 'dsymutil' ourselves in such cases + // because the debug info will refer to a temporary object file which + // will be removed at the end of the compilation process. + if (Act->getType() == types::TY_Image) { + ActionList Inputs; + Inputs.push_back(Actions.back()); + Actions.pop_back(); + Actions.push_back(new DsymutilJobAction(Inputs, types::TY_dSYM)); + } + + // Verify the debug info output. + if (Args.hasArg(options::OPT_verify_debug_info)) { + std::unique_ptr<Action> VerifyInput(Actions.back()); + Actions.pop_back(); + Actions.push_back(new VerifyDebugInfoJobAction(std::move(VerifyInput), + types::TY_Nothing)); + } + } + } +} + +/// \brief Check that the file referenced by Value exists. If it doesn't, +/// issue a diagnostic and return false. +static bool DiagnoseInputExistence(const Driver &D, const DerivedArgList &Args, + StringRef Value) { + if (!D.getCheckInputsExist()) + return true; + + // stdin always exists. + if (Value == "-") + return true; + + SmallString<64> Path(Value); + if (Arg *WorkDir = Args.getLastArg(options::OPT_working_directory)) { + if (!llvm::sys::path::is_absolute(Path)) { + SmallString<64> Directory(WorkDir->getValue()); + llvm::sys::path::append(Directory, Value); + Path.assign(Directory); + } + } + + if (llvm::sys::fs::exists(Twine(Path))) + return true; + + if (D.IsCLMode() && !llvm::sys::path::is_absolute(Twine(Path)) && + llvm::sys::Process::FindInEnvPath("LIB", Value)) + return true; + + D.Diag(clang::diag::err_drv_no_such_file) << Path; + return false; +} + +// Construct a the list of inputs and their types. +void Driver::BuildInputs(const ToolChain &TC, DerivedArgList &Args, + InputList &Inputs) const { + // Track the current user specified (-x) input. We also explicitly track the + // argument used to set the type; we only want to claim the type when we + // actually use it, so we warn about unused -x arguments. + types::ID InputType = types::TY_Nothing; + Arg *InputTypeArg = nullptr; + + // The last /TC or /TP option sets the input type to C or C++ globally. + if (Arg *TCTP = Args.getLastArgNoClaim(options::OPT__SLASH_TC, + options::OPT__SLASH_TP)) { + InputTypeArg = TCTP; + InputType = TCTP->getOption().matches(options::OPT__SLASH_TC) + ? types::TY_C + : types::TY_CXX; + + arg_iterator it = + Args.filtered_begin(options::OPT__SLASH_TC, options::OPT__SLASH_TP); + const arg_iterator ie = Args.filtered_end(); + Arg *Previous = *it++; + bool ShowNote = false; + while (it != ie) { + Diag(clang::diag::warn_drv_overriding_flag_option) + << Previous->getSpelling() << (*it)->getSpelling(); + Previous = *it++; + ShowNote = true; + } + if (ShowNote) + Diag(clang::diag::note_drv_t_option_is_global); + + // No driver mode exposes -x and /TC or /TP; we don't support mixing them. + assert(!Args.hasArg(options::OPT_x) && "-x and /TC or /TP is not allowed"); + } + + for (Arg *A : Args) { + if (A->getOption().getKind() == Option::InputClass) { + const char *Value = A->getValue(); + types::ID Ty = types::TY_INVALID; + + // Infer the input type if necessary. + if (InputType == types::TY_Nothing) { + // If there was an explicit arg for this, claim it. + if (InputTypeArg) + InputTypeArg->claim(); + + // stdin must be handled specially. + if (memcmp(Value, "-", 2) == 0) { + // If running with -E, treat as a C input (this changes the builtin + // macros, for example). This may be overridden by -ObjC below. + // + // Otherwise emit an error but still use a valid type to avoid + // spurious errors (e.g., no inputs). + if (!Args.hasArgNoClaim(options::OPT_E) && !CCCIsCPP()) + Diag(IsCLMode() ? clang::diag::err_drv_unknown_stdin_type_clang_cl + : clang::diag::err_drv_unknown_stdin_type); + Ty = types::TY_C; + } else { + // Otherwise lookup by extension. + // Fallback is C if invoked as C preprocessor or Object otherwise. + // We use a host hook here because Darwin at least has its own + // idea of what .s is. + if (const char *Ext = strrchr(Value, '.')) + Ty = TC.LookupTypeForExtension(Ext + 1); + + if (Ty == types::TY_INVALID) { + if (CCCIsCPP()) + Ty = types::TY_C; + else + Ty = types::TY_Object; + } + + // If the driver is invoked as C++ compiler (like clang++ or c++) it + // should autodetect some input files as C++ for g++ compatibility. + if (CCCIsCXX()) { + types::ID OldTy = Ty; + Ty = types::lookupCXXTypeForCType(Ty); + + if (Ty != OldTy) + Diag(clang::diag::warn_drv_treating_input_as_cxx) + << getTypeName(OldTy) << getTypeName(Ty); + } + } + + // -ObjC and -ObjC++ override the default language, but only for "source + // files". We just treat everything that isn't a linker input as a + // source file. + // + // FIXME: Clean this up if we move the phase sequence into the type. + if (Ty != types::TY_Object) { + if (Args.hasArg(options::OPT_ObjC)) + Ty = types::TY_ObjC; + else if (Args.hasArg(options::OPT_ObjCXX)) + Ty = types::TY_ObjCXX; + } + } else { + assert(InputTypeArg && "InputType set w/o InputTypeArg"); + if (!InputTypeArg->getOption().matches(options::OPT_x)) { + // If emulating cl.exe, make sure that /TC and /TP don't affect input + // object files. + const char *Ext = strrchr(Value, '.'); + if (Ext && TC.LookupTypeForExtension(Ext + 1) == types::TY_Object) + Ty = types::TY_Object; + } + if (Ty == types::TY_INVALID) { + Ty = InputType; + InputTypeArg->claim(); + } + } + + if (DiagnoseInputExistence(*this, Args, Value)) + Inputs.push_back(std::make_pair(Ty, A)); + + } else if (A->getOption().matches(options::OPT__SLASH_Tc)) { + StringRef Value = A->getValue(); + if (DiagnoseInputExistence(*this, Args, Value)) { + Arg *InputArg = MakeInputArg(Args, Opts, A->getValue()); + Inputs.push_back(std::make_pair(types::TY_C, InputArg)); + } + A->claim(); + } else if (A->getOption().matches(options::OPT__SLASH_Tp)) { + StringRef Value = A->getValue(); + if (DiagnoseInputExistence(*this, Args, Value)) { + Arg *InputArg = MakeInputArg(Args, Opts, A->getValue()); + Inputs.push_back(std::make_pair(types::TY_CXX, InputArg)); + } + A->claim(); + } else if (A->getOption().hasFlag(options::LinkerInput)) { + // Just treat as object type, we could make a special type for this if + // necessary. + Inputs.push_back(std::make_pair(types::TY_Object, A)); + + } else if (A->getOption().matches(options::OPT_x)) { + InputTypeArg = A; + InputType = types::lookupTypeForTypeSpecifier(A->getValue()); + A->claim(); + + // Follow gcc behavior and treat as linker input for invalid -x + // options. Its not clear why we shouldn't just revert to unknown; but + // this isn't very important, we might as well be bug compatible. + if (!InputType) { + Diag(clang::diag::err_drv_unknown_language) << A->getValue(); + InputType = types::TY_Object; + } + } + } + if (CCCIsCPP() && Inputs.empty()) { + // If called as standalone preprocessor, stdin is processed + // if no other input is present. + Arg *A = MakeInputArg(Args, Opts, "-"); + Inputs.push_back(std::make_pair(types::TY_C, A)); + } +} + +// For each unique --cuda-gpu-arch= argument creates a TY_CUDA_DEVICE +// input action and then wraps each in CudaDeviceAction paired with +// appropriate GPU arch name. In case of partial (i.e preprocessing +// only) or device-only compilation, each device action is added to /p +// Actions and /p Current is released. Otherwise the function creates +// and returns a new CudaHostAction which wraps /p Current and device +// side actions. +static std::unique_ptr<Action> +buildCudaActions(Compilation &C, DerivedArgList &Args, const Arg *InputArg, + std::unique_ptr<Action> HostAction, ActionList &Actions) { + Arg *PartialCompilationArg = Args.getLastArg(options::OPT_cuda_host_only, + options::OPT_cuda_device_only); + // Host-only compilation case. + if (PartialCompilationArg && + PartialCompilationArg->getOption().matches(options::OPT_cuda_host_only)) + return std::unique_ptr<Action>( + new CudaHostAction(std::move(HostAction), {})); + + // Collect all cuda_gpu_arch parameters, removing duplicates. + SmallVector<const char *, 4> GpuArchList; + llvm::StringSet<> GpuArchNames; + for (Arg *A : Args) { + if (A->getOption().matches(options::OPT_cuda_gpu_arch_EQ)) { + A->claim(); + if (GpuArchNames.insert(A->getValue()).second) + GpuArchList.push_back(A->getValue()); + } + } + + // Default to sm_20 which is the lowest common denominator for supported GPUs. + // sm_20 code should work correctly, if suboptimally, on all newer GPUs. + if (GpuArchList.empty()) + GpuArchList.push_back("sm_20"); + + // Replicate inputs for each GPU architecture. + Driver::InputList CudaDeviceInputs; + for (unsigned I = 0, E = GpuArchList.size(); I != E; ++I) + CudaDeviceInputs.push_back(std::make_pair(types::TY_CUDA_DEVICE, InputArg)); + + // Build actions for all device inputs. + assert(C.getCudaDeviceToolChain() && + "Missing toolchain for device-side compilation."); + ActionList CudaDeviceActions; + C.getDriver().BuildActions(C, *C.getCudaDeviceToolChain(), Args, + CudaDeviceInputs, CudaDeviceActions); + assert(GpuArchList.size() == CudaDeviceActions.size() && + "Failed to create actions for all devices"); + + // Check whether any of device actions stopped before they could generate PTX. + bool PartialCompilation = false; + for (unsigned I = 0, E = GpuArchList.size(); I != E; ++I) { + if (CudaDeviceActions[I]->getKind() != Action::BackendJobClass) { + PartialCompilation = true; + break; + } + } + + // Figure out what to do with device actions -- pass them as inputs to the + // host action or run each of them independently. + bool DeviceOnlyCompilation = PartialCompilationArg != nullptr; + if (PartialCompilation || DeviceOnlyCompilation) { + // In case of partial or device-only compilation results of device actions + // are not consumed by the host action device actions have to be added to + // top-level actions list with AtTopLevel=true and run independently. + + // -o is ambiguous if we have more than one top-level action. + if (Args.hasArg(options::OPT_o) && + (!DeviceOnlyCompilation || GpuArchList.size() > 1)) { + C.getDriver().Diag( + clang::diag::err_drv_output_argument_with_multiple_files); + return nullptr; + } + + for (unsigned I = 0, E = GpuArchList.size(); I != E; ++I) + Actions.push_back(new CudaDeviceAction( + std::unique_ptr<Action>(CudaDeviceActions[I]), GpuArchList[I], + /* AtTopLevel */ true)); + // Kill host action in case of device-only compilation. + if (DeviceOnlyCompilation) + HostAction.reset(nullptr); + return HostAction; + } + + // Outputs of device actions during complete CUDA compilation get created + // with AtTopLevel=false and become inputs for the host action. + ActionList DeviceActions; + for (unsigned I = 0, E = GpuArchList.size(); I != E; ++I) + DeviceActions.push_back(new CudaDeviceAction( + std::unique_ptr<Action>(CudaDeviceActions[I]), GpuArchList[I], + /* AtTopLevel */ false)); + // Return a new host action that incorporates original host action and all + // device actions. + return std::unique_ptr<Action>( + new CudaHostAction(std::move(HostAction), DeviceActions)); +} + +void Driver::BuildActions(Compilation &C, const ToolChain &TC, + DerivedArgList &Args, const InputList &Inputs, + ActionList &Actions) const { + llvm::PrettyStackTraceString CrashInfo("Building compilation actions"); + + if (!SuppressMissingInputWarning && Inputs.empty()) { + Diag(clang::diag::err_drv_no_input_files); + return; + } + + Arg *FinalPhaseArg; + phases::ID FinalPhase = getFinalPhase(Args, &FinalPhaseArg); + + if (FinalPhase == phases::Link && Args.hasArg(options::OPT_emit_llvm)) { + Diag(clang::diag::err_drv_emit_llvm_link); + } + + // Reject -Z* at the top level, these options should never have been exposed + // by gcc. + if (Arg *A = Args.getLastArg(options::OPT_Z_Joined)) + Diag(clang::diag::err_drv_use_of_Z_option) << A->getAsString(Args); + + // Diagnose misuse of /Fo. + if (Arg *A = Args.getLastArg(options::OPT__SLASH_Fo)) { + StringRef V = A->getValue(); + if (Inputs.size() > 1 && !V.empty() && + !llvm::sys::path::is_separator(V.back())) { + // Check whether /Fo tries to name an output file for multiple inputs. + Diag(clang::diag::err_drv_out_file_argument_with_multiple_sources) + << A->getSpelling() << V; + Args.eraseArg(options::OPT__SLASH_Fo); + } + } + + // Diagnose misuse of /Fa. + if (Arg *A = Args.getLastArg(options::OPT__SLASH_Fa)) { + StringRef V = A->getValue(); + if (Inputs.size() > 1 && !V.empty() && + !llvm::sys::path::is_separator(V.back())) { + // Check whether /Fa tries to name an asm file for multiple inputs. + Diag(clang::diag::err_drv_out_file_argument_with_multiple_sources) + << A->getSpelling() << V; + Args.eraseArg(options::OPT__SLASH_Fa); + } + } + + // Diagnose misuse of /o. + if (Arg *A = Args.getLastArg(options::OPT__SLASH_o)) { + if (A->getValue()[0] == '\0') { + // It has to have a value. + Diag(clang::diag::err_drv_missing_argument) << A->getSpelling() << 1; + Args.eraseArg(options::OPT__SLASH_o); + } + } + + // Construct the actions to perform. + ActionList LinkerInputs; + + llvm::SmallVector<phases::ID, phases::MaxNumberOfPhases> PL; + for (auto &I : Inputs) { + types::ID InputType = I.first; + const Arg *InputArg = I.second; + + PL.clear(); + types::getCompilationPhases(InputType, PL); + + // If the first step comes after the final phase we are doing as part of + // this compilation, warn the user about it. + phases::ID InitialPhase = PL[0]; + if (InitialPhase > FinalPhase) { + // Claim here to avoid the more general unused warning. + InputArg->claim(); + + // Suppress all unused style warnings with -Qunused-arguments + if (Args.hasArg(options::OPT_Qunused_arguments)) + continue; + + // Special case when final phase determined by binary name, rather than + // by a command-line argument with a corresponding Arg. + if (CCCIsCPP()) + Diag(clang::diag::warn_drv_input_file_unused_by_cpp) + << InputArg->getAsString(Args) << getPhaseName(InitialPhase); + // Special case '-E' warning on a previously preprocessed file to make + // more sense. + else if (InitialPhase == phases::Compile && + FinalPhase == phases::Preprocess && + getPreprocessedType(InputType) == types::TY_INVALID) + Diag(clang::diag::warn_drv_preprocessed_input_file_unused) + << InputArg->getAsString(Args) << !!FinalPhaseArg + << (FinalPhaseArg ? FinalPhaseArg->getOption().getName() : ""); + else + Diag(clang::diag::warn_drv_input_file_unused) + << InputArg->getAsString(Args) << getPhaseName(InitialPhase) + << !!FinalPhaseArg + << (FinalPhaseArg ? FinalPhaseArg->getOption().getName() : ""); + continue; + } + + phases::ID CudaInjectionPhase = FinalPhase; + for (const auto &Phase : PL) + if (Phase <= FinalPhase && Phase == phases::Compile) { + CudaInjectionPhase = Phase; + break; + } + + // Build the pipeline for this file. + std::unique_ptr<Action> Current(new InputAction(*InputArg, InputType)); + for (SmallVectorImpl<phases::ID>::iterator i = PL.begin(), e = PL.end(); + i != e; ++i) { + phases::ID Phase = *i; + + // We are done if this step is past what the user requested. + if (Phase > FinalPhase) + break; + + // Queue linker inputs. + if (Phase == phases::Link) { + assert((i + 1) == e && "linking must be final compilation step."); + LinkerInputs.push_back(Current.release()); + break; + } + + // Some types skip the assembler phase (e.g., llvm-bc), but we can't + // encode this in the steps because the intermediate type depends on + // arguments. Just special case here. + if (Phase == phases::Assemble && Current->getType() != types::TY_PP_Asm) + continue; + + // Otherwise construct the appropriate action. + Current = ConstructPhaseAction(TC, Args, Phase, std::move(Current)); + + if (InputType == types::TY_CUDA && Phase == CudaInjectionPhase) { + Current = + buildCudaActions(C, Args, InputArg, std::move(Current), Actions); + if (!Current) + break; + } + + if (Current->getType() == types::TY_Nothing) + break; + } + + // If we ended with something, add to the output list. + if (Current) + Actions.push_back(Current.release()); + } + + // Add a link action if necessary. + if (!LinkerInputs.empty()) + Actions.push_back(new LinkJobAction(LinkerInputs, types::TY_Image)); + + // If we are linking, claim any options which are obviously only used for + // compilation. + if (FinalPhase == phases::Link && PL.size() == 1) { + Args.ClaimAllArgs(options::OPT_CompileOnly_Group); + Args.ClaimAllArgs(options::OPT_cl_compile_Group); + } + + // Claim ignored clang-cl options. + Args.ClaimAllArgs(options::OPT_cl_ignored_Group); + + // Claim --cuda-host-only arg which may be passed to non-CUDA + // compilations and should not trigger warnings there. + Args.ClaimAllArgs(options::OPT_cuda_host_only); +} + +std::unique_ptr<Action> +Driver::ConstructPhaseAction(const ToolChain &TC, const ArgList &Args, + phases::ID Phase, + std::unique_ptr<Action> Input) const { + llvm::PrettyStackTraceString CrashInfo("Constructing phase actions"); + // Build the appropriate action. + switch (Phase) { + case phases::Link: + llvm_unreachable("link action invalid here."); + case phases::Preprocess: { + types::ID OutputTy; + // -{M, MM} alter the output type. + if (Args.hasArg(options::OPT_M, options::OPT_MM)) { + OutputTy = types::TY_Dependencies; + } else { + OutputTy = Input->getType(); + if (!Args.hasFlag(options::OPT_frewrite_includes, + options::OPT_fno_rewrite_includes, false) && + !CCGenDiagnostics) + OutputTy = types::getPreprocessedType(OutputTy); + assert(OutputTy != types::TY_INVALID && + "Cannot preprocess this input type!"); + } + return llvm::make_unique<PreprocessJobAction>(std::move(Input), OutputTy); + } + case phases::Precompile: { + types::ID OutputTy = types::TY_PCH; + if (Args.hasArg(options::OPT_fsyntax_only)) { + // Syntax checks should not emit a PCH file + OutputTy = types::TY_Nothing; + } + return llvm::make_unique<PrecompileJobAction>(std::move(Input), OutputTy); + } + case phases::Compile: { + if (Args.hasArg(options::OPT_fsyntax_only)) + return llvm::make_unique<CompileJobAction>(std::move(Input), + types::TY_Nothing); + if (Args.hasArg(options::OPT_rewrite_objc)) + return llvm::make_unique<CompileJobAction>(std::move(Input), + types::TY_RewrittenObjC); + if (Args.hasArg(options::OPT_rewrite_legacy_objc)) + return llvm::make_unique<CompileJobAction>(std::move(Input), + types::TY_RewrittenLegacyObjC); + if (Args.hasArg(options::OPT__analyze, options::OPT__analyze_auto)) + return llvm::make_unique<AnalyzeJobAction>(std::move(Input), + types::TY_Plist); + if (Args.hasArg(options::OPT__migrate)) + return llvm::make_unique<MigrateJobAction>(std::move(Input), + types::TY_Remap); + if (Args.hasArg(options::OPT_emit_ast)) + return llvm::make_unique<CompileJobAction>(std::move(Input), + types::TY_AST); + if (Args.hasArg(options::OPT_module_file_info)) + return llvm::make_unique<CompileJobAction>(std::move(Input), + types::TY_ModuleFile); + if (Args.hasArg(options::OPT_verify_pch)) + return llvm::make_unique<VerifyPCHJobAction>(std::move(Input), + types::TY_Nothing); + return llvm::make_unique<CompileJobAction>(std::move(Input), + types::TY_LLVM_BC); + } + case phases::Backend: { + if (isUsingLTO()) { + types::ID Output = + Args.hasArg(options::OPT_S) ? types::TY_LTO_IR : types::TY_LTO_BC; + return llvm::make_unique<BackendJobAction>(std::move(Input), Output); + } + if (Args.hasArg(options::OPT_emit_llvm)) { + types::ID Output = + Args.hasArg(options::OPT_S) ? types::TY_LLVM_IR : types::TY_LLVM_BC; + return llvm::make_unique<BackendJobAction>(std::move(Input), Output); + } + return llvm::make_unique<BackendJobAction>(std::move(Input), + types::TY_PP_Asm); + } + case phases::Assemble: + return llvm::make_unique<AssembleJobAction>(std::move(Input), + types::TY_Object); + } + + llvm_unreachable("invalid phase in ConstructPhaseAction"); +} + +void Driver::BuildJobs(Compilation &C) const { + llvm::PrettyStackTraceString CrashInfo("Building compilation jobs"); + + Arg *FinalOutput = C.getArgs().getLastArg(options::OPT_o); + + // It is an error to provide a -o option if we are making multiple output + // files. + if (FinalOutput) { + unsigned NumOutputs = 0; + for (const Action *A : C.getActions()) + if (A->getType() != types::TY_Nothing) + ++NumOutputs; + + if (NumOutputs > 1) { + Diag(clang::diag::err_drv_output_argument_with_multiple_files); + FinalOutput = nullptr; + } + } + + // Collect the list of architectures. + llvm::StringSet<> ArchNames; + if (C.getDefaultToolChain().getTriple().isOSBinFormatMachO()) + for (const Arg *A : C.getArgs()) + if (A->getOption().matches(options::OPT_arch)) + ArchNames.insert(A->getValue()); + + for (Action *A : C.getActions()) { + // If we are linking an image for multiple archs then the linker wants + // -arch_multiple and -final_output <final image name>. Unfortunately, this + // doesn't fit in cleanly because we have to pass this information down. + // + // FIXME: This is a hack; find a cleaner way to integrate this into the + // process. + const char *LinkingOutput = nullptr; + if (isa<LipoJobAction>(A)) { + if (FinalOutput) + LinkingOutput = FinalOutput->getValue(); + else + LinkingOutput = getDefaultImageName(); + } + + InputInfo II; + BuildJobsForAction(C, A, &C.getDefaultToolChain(), + /*BoundArch*/ nullptr, + /*AtTopLevel*/ true, + /*MultipleArchs*/ ArchNames.size() > 1, + /*LinkingOutput*/ LinkingOutput, II); + } + + // If the user passed -Qunused-arguments or there were errors, don't warn + // about any unused arguments. + if (Diags.hasErrorOccurred() || + C.getArgs().hasArg(options::OPT_Qunused_arguments)) + return; + + // Claim -### here. + (void)C.getArgs().hasArg(options::OPT__HASH_HASH_HASH); + + // Claim --driver-mode, it was handled earlier. + (void)C.getArgs().hasArg(options::OPT_driver_mode); + + for (Arg *A : C.getArgs()) { + // FIXME: It would be nice to be able to send the argument to the + // DiagnosticsEngine, so that extra values, position, and so on could be + // printed. + if (!A->isClaimed()) { + if (A->getOption().hasFlag(options::NoArgumentUnused)) + continue; + + // Suppress the warning automatically if this is just a flag, and it is an + // instance of an argument we already claimed. + const Option &Opt = A->getOption(); + if (Opt.getKind() == Option::FlagClass) { + bool DuplicateClaimed = false; + + for (const Arg *AA : C.getArgs().filtered(&Opt)) { + if (AA->isClaimed()) { + DuplicateClaimed = true; + break; + } + } + + if (DuplicateClaimed) + continue; + } + + Diag(clang::diag::warn_drv_unused_argument) + << A->getAsString(C.getArgs()); + } + } +} + +// Returns a Tool for a given JobAction. In case the action and its +// predecessors can be combined, updates Inputs with the inputs of the +// first combined action. If one of the collapsed actions is a +// CudaHostAction, updates CollapsedCHA with the pointer to it so the +// caller can deal with extra handling such action requires. +static const Tool *selectToolForJob(Compilation &C, bool SaveTemps, + const ToolChain *TC, const JobAction *JA, + const ActionList *&Inputs, + const CudaHostAction *&CollapsedCHA) { + const Tool *ToolForJob = nullptr; + CollapsedCHA = nullptr; + + // See if we should look for a compiler with an integrated assembler. We match + // bottom up, so what we are actually looking for is an assembler job with a + // compiler input. + + if (TC->useIntegratedAs() && !SaveTemps && + !C.getArgs().hasArg(options::OPT_via_file_asm) && + !C.getArgs().hasArg(options::OPT__SLASH_FA) && + !C.getArgs().hasArg(options::OPT__SLASH_Fa) && + isa<AssembleJobAction>(JA) && Inputs->size() == 1 && + isa<BackendJobAction>(*Inputs->begin())) { + // A BackendJob is always preceded by a CompileJob, and without + // -save-temps they will always get combined together, so instead of + // checking the backend tool, check if the tool for the CompileJob + // has an integrated assembler. + const ActionList *BackendInputs = &(*Inputs)[0]->getInputs(); + // Compile job may be wrapped in CudaHostAction, extract it if + // that's the case and update CollapsedCHA if we combine phases. + CudaHostAction *CHA = dyn_cast<CudaHostAction>(*BackendInputs->begin()); + JobAction *CompileJA = + cast<CompileJobAction>(CHA ? *CHA->begin() : *BackendInputs->begin()); + assert(CompileJA && "Backend job is not preceeded by compile job."); + const Tool *Compiler = TC->SelectTool(*CompileJA); + if (!Compiler) + return nullptr; + if (Compiler->hasIntegratedAssembler()) { + Inputs = &CompileJA->getInputs(); + ToolForJob = Compiler; + CollapsedCHA = CHA; + } + } + + // A backend job should always be combined with the preceding compile job + // unless OPT_save_temps is enabled and the compiler is capable of emitting + // LLVM IR as an intermediate output. + if (isa<BackendJobAction>(JA)) { + // Check if the compiler supports emitting LLVM IR. + assert(Inputs->size() == 1); + // Compile job may be wrapped in CudaHostAction, extract it if + // that's the case and update CollapsedCHA if we combine phases. + CudaHostAction *CHA = dyn_cast<CudaHostAction>(*Inputs->begin()); + JobAction *CompileJA = + cast<CompileJobAction>(CHA ? *CHA->begin() : *Inputs->begin()); + assert(CompileJA && "Backend job is not preceeded by compile job."); + const Tool *Compiler = TC->SelectTool(*CompileJA); + if (!Compiler) + return nullptr; + if (!Compiler->canEmitIR() || !SaveTemps) { + Inputs = &CompileJA->getInputs(); + ToolForJob = Compiler; + CollapsedCHA = CHA; + } + } + + // Otherwise use the tool for the current job. + if (!ToolForJob) + ToolForJob = TC->SelectTool(*JA); + + // See if we should use an integrated preprocessor. We do so when we have + // exactly one input, since this is the only use case we care about + // (irrelevant since we don't support combine yet). + if (Inputs->size() == 1 && isa<PreprocessJobAction>(*Inputs->begin()) && + !C.getArgs().hasArg(options::OPT_no_integrated_cpp) && + !C.getArgs().hasArg(options::OPT_traditional_cpp) && !SaveTemps && + !C.getArgs().hasArg(options::OPT_rewrite_objc) && + ToolForJob->hasIntegratedCPP()) + Inputs = &(*Inputs)[0]->getInputs(); + + return ToolForJob; +} + +void Driver::BuildJobsForAction(Compilation &C, const Action *A, + const ToolChain *TC, const char *BoundArch, + bool AtTopLevel, bool MultipleArchs, + const char *LinkingOutput, + InputInfo &Result) const { + llvm::PrettyStackTraceString CrashInfo("Building compilation jobs"); + + InputInfoList CudaDeviceInputInfos; + if (const CudaHostAction *CHA = dyn_cast<CudaHostAction>(A)) { + InputInfo II; + // Append outputs of device jobs to the input list. + for (const Action *DA : CHA->getDeviceActions()) { + BuildJobsForAction(C, DA, TC, nullptr, AtTopLevel, + /*MultipleArchs*/ false, LinkingOutput, II); + CudaDeviceInputInfos.push_back(II); + } + // Override current action with a real host compile action and continue + // processing it. + A = *CHA->begin(); + } + + if (const InputAction *IA = dyn_cast<InputAction>(A)) { + // FIXME: It would be nice to not claim this here; maybe the old scheme of + // just using Args was better? + const Arg &Input = IA->getInputArg(); + Input.claim(); + if (Input.getOption().matches(options::OPT_INPUT)) { + const char *Name = Input.getValue(); + Result = InputInfo(Name, A->getType(), Name); + } else { + Result = InputInfo(&Input, A->getType(), ""); + } + return; + } + + if (const BindArchAction *BAA = dyn_cast<BindArchAction>(A)) { + const ToolChain *TC; + const char *ArchName = BAA->getArchName(); + + if (ArchName) + TC = &getToolChain( + C.getArgs(), + computeTargetTriple(DefaultTargetTriple, C.getArgs(), ArchName)); + else + TC = &C.getDefaultToolChain(); + + BuildJobsForAction(C, *BAA->begin(), TC, ArchName, AtTopLevel, + MultipleArchs, LinkingOutput, Result); + return; + } + + if (const CudaDeviceAction *CDA = dyn_cast<CudaDeviceAction>(A)) { + // Initial processing of CudaDeviceAction carries host params. + // Call BuildJobsForAction() again, now with correct device parameters. + assert(CDA->getGpuArchName() && "No GPU name in device action."); + BuildJobsForAction(C, *CDA->begin(), C.getCudaDeviceToolChain(), + CDA->getGpuArchName(), CDA->isAtTopLevel(), + /*MultipleArchs*/ true, LinkingOutput, Result); + return; + } + + const ActionList *Inputs = &A->getInputs(); + + const JobAction *JA = cast<JobAction>(A); + const CudaHostAction *CollapsedCHA = nullptr; + const Tool *T = + selectToolForJob(C, isSaveTempsEnabled(), TC, JA, Inputs, CollapsedCHA); + if (!T) + return; + + // If we've collapsed action list that contained CudaHostAction we + // need to build jobs for device-side inputs it may have held. + if (CollapsedCHA) { + InputInfo II; + for (const Action *DA : CollapsedCHA->getDeviceActions()) { + BuildJobsForAction(C, DA, TC, "", AtTopLevel, + /*MultipleArchs*/ false, LinkingOutput, II); + CudaDeviceInputInfos.push_back(II); + } + } + + // Only use pipes when there is exactly one input. + InputInfoList InputInfos; + for (const Action *Input : *Inputs) { + // Treat dsymutil and verify sub-jobs as being at the top-level too, they + // shouldn't get temporary output names. + // FIXME: Clean this up. + bool SubJobAtTopLevel = false; + if (AtTopLevel && (isa<DsymutilJobAction>(A) || isa<VerifyJobAction>(A))) + SubJobAtTopLevel = true; + + InputInfo II; + BuildJobsForAction(C, Input, TC, BoundArch, SubJobAtTopLevel, MultipleArchs, + LinkingOutput, II); + InputInfos.push_back(II); + } + + // Always use the first input as the base input. + const char *BaseInput = InputInfos[0].getBaseInput(); + + // ... except dsymutil actions, which use their actual input as the base + // input. + if (JA->getType() == types::TY_dSYM) + BaseInput = InputInfos[0].getFilename(); + + // Append outputs of cuda device jobs to the input list + if (CudaDeviceInputInfos.size()) + InputInfos.append(CudaDeviceInputInfos.begin(), CudaDeviceInputInfos.end()); + + // Determine the place to write output to, if any. + if (JA->getType() == types::TY_Nothing) + Result = InputInfo(A->getType(), BaseInput); + else + Result = InputInfo(GetNamedOutputPath(C, *JA, BaseInput, BoundArch, + AtTopLevel, MultipleArchs), + A->getType(), BaseInput); + + if (CCCPrintBindings && !CCGenDiagnostics) { + llvm::errs() << "# \"" << T->getToolChain().getTripleString() << '"' + << " - \"" << T->getName() << "\", inputs: ["; + for (unsigned i = 0, e = InputInfos.size(); i != e; ++i) { + llvm::errs() << InputInfos[i].getAsString(); + if (i + 1 != e) + llvm::errs() << ", "; + } + llvm::errs() << "], output: " << Result.getAsString() << "\n"; + } else { + T->ConstructJob(C, *JA, Result, InputInfos, + C.getArgsForToolChain(TC, BoundArch), LinkingOutput); + } +} + +const char *Driver::getDefaultImageName() const { + llvm::Triple Target(llvm::Triple::normalize(DefaultTargetTriple)); + return Target.isOSWindows() ? "a.exe" : "a.out"; +} + +/// \brief Create output filename based on ArgValue, which could either be a +/// full filename, filename without extension, or a directory. If ArgValue +/// does not provide a filename, then use BaseName, and use the extension +/// suitable for FileType. +static const char *MakeCLOutputFilename(const ArgList &Args, StringRef ArgValue, + StringRef BaseName, + types::ID FileType) { + SmallString<128> Filename = ArgValue; + + if (ArgValue.empty()) { + // If the argument is empty, output to BaseName in the current dir. + Filename = BaseName; + } else if (llvm::sys::path::is_separator(Filename.back())) { + // If the argument is a directory, output to BaseName in that dir. + llvm::sys::path::append(Filename, BaseName); + } + + if (!llvm::sys::path::has_extension(ArgValue)) { + // If the argument didn't provide an extension, then set it. + const char *Extension = types::getTypeTempSuffix(FileType, true); + + if (FileType == types::TY_Image && + Args.hasArg(options::OPT__SLASH_LD, options::OPT__SLASH_LDd)) { + // The output file is a dll. + Extension = "dll"; + } + + llvm::sys::path::replace_extension(Filename, Extension); + } + + return Args.MakeArgString(Filename.c_str()); +} + +const char *Driver::GetNamedOutputPath(Compilation &C, const JobAction &JA, + const char *BaseInput, + const char *BoundArch, bool AtTopLevel, + bool MultipleArchs) const { + llvm::PrettyStackTraceString CrashInfo("Computing output path"); + // Output to a user requested destination? + if (AtTopLevel && !isa<DsymutilJobAction>(JA) && !isa<VerifyJobAction>(JA)) { + if (Arg *FinalOutput = C.getArgs().getLastArg(options::OPT_o)) + return C.addResultFile(FinalOutput->getValue(), &JA); + } + + // For /P, preprocess to file named after BaseInput. + if (C.getArgs().hasArg(options::OPT__SLASH_P)) { + assert(AtTopLevel && isa<PreprocessJobAction>(JA)); + StringRef BaseName = llvm::sys::path::filename(BaseInput); + StringRef NameArg; + if (Arg *A = C.getArgs().getLastArg(options::OPT__SLASH_Fi)) + NameArg = A->getValue(); + return C.addResultFile( + MakeCLOutputFilename(C.getArgs(), NameArg, BaseName, types::TY_PP_C), + &JA); + } + + // Default to writing to stdout? + if (AtTopLevel && !CCGenDiagnostics && + (isa<PreprocessJobAction>(JA) || JA.getType() == types::TY_ModuleFile)) + return "-"; + + // Is this the assembly listing for /FA? + if (JA.getType() == types::TY_PP_Asm && + (C.getArgs().hasArg(options::OPT__SLASH_FA) || + C.getArgs().hasArg(options::OPT__SLASH_Fa))) { + // Use /Fa and the input filename to determine the asm file name. + StringRef BaseName = llvm::sys::path::filename(BaseInput); + StringRef FaValue = C.getArgs().getLastArgValue(options::OPT__SLASH_Fa); + return C.addResultFile( + MakeCLOutputFilename(C.getArgs(), FaValue, BaseName, JA.getType()), + &JA); + } + + // Output to a temporary file? + if ((!AtTopLevel && !isSaveTempsEnabled() && + !C.getArgs().hasArg(options::OPT__SLASH_Fo)) || + CCGenDiagnostics) { + StringRef Name = llvm::sys::path::filename(BaseInput); + std::pair<StringRef, StringRef> Split = Name.split('.'); + std::string TmpName = GetTemporaryPath( + Split.first, types::getTypeTempSuffix(JA.getType(), IsCLMode())); + return C.addTempFile(C.getArgs().MakeArgString(TmpName.c_str())); + } + + SmallString<128> BasePath(BaseInput); + StringRef BaseName; + + // Dsymutil actions should use the full path. + if (isa<DsymutilJobAction>(JA) || isa<VerifyJobAction>(JA)) + BaseName = BasePath; + else + BaseName = llvm::sys::path::filename(BasePath); + + // Determine what the derived output name should be. + const char *NamedOutput; + + if (JA.getType() == types::TY_Object && + C.getArgs().hasArg(options::OPT__SLASH_Fo, options::OPT__SLASH_o)) { + // The /Fo or /o flag decides the object filename. + StringRef Val = + C.getArgs() + .getLastArg(options::OPT__SLASH_Fo, options::OPT__SLASH_o) + ->getValue(); + NamedOutput = + MakeCLOutputFilename(C.getArgs(), Val, BaseName, types::TY_Object); + } else if (JA.getType() == types::TY_Image && + C.getArgs().hasArg(options::OPT__SLASH_Fe, + options::OPT__SLASH_o)) { + // The /Fe or /o flag names the linked file. + StringRef Val = + C.getArgs() + .getLastArg(options::OPT__SLASH_Fe, options::OPT__SLASH_o) + ->getValue(); + NamedOutput = + MakeCLOutputFilename(C.getArgs(), Val, BaseName, types::TY_Image); + } else if (JA.getType() == types::TY_Image) { + if (IsCLMode()) { + // clang-cl uses BaseName for the executable name. + NamedOutput = + MakeCLOutputFilename(C.getArgs(), "", BaseName, types::TY_Image); + } else if (MultipleArchs && BoundArch) { + SmallString<128> Output(getDefaultImageName()); + Output += "-"; + Output.append(BoundArch); + NamedOutput = C.getArgs().MakeArgString(Output.c_str()); + } else + NamedOutput = getDefaultImageName(); + } else { + const char *Suffix = types::getTypeTempSuffix(JA.getType(), IsCLMode()); + assert(Suffix && "All types used for output should have a suffix."); + + std::string::size_type End = std::string::npos; + if (!types::appendSuffixForType(JA.getType())) + End = BaseName.rfind('.'); + SmallString<128> Suffixed(BaseName.substr(0, End)); + if (MultipleArchs && BoundArch) { + Suffixed += "-"; + Suffixed.append(BoundArch); + } + // When using both -save-temps and -emit-llvm, use a ".tmp.bc" suffix for + // the unoptimized bitcode so that it does not get overwritten by the ".bc" + // optimized bitcode output. + if (!AtTopLevel && C.getArgs().hasArg(options::OPT_emit_llvm) && + JA.getType() == types::TY_LLVM_BC) + Suffixed += ".tmp"; + Suffixed += '.'; + Suffixed += Suffix; + NamedOutput = C.getArgs().MakeArgString(Suffixed.c_str()); + } + + // Prepend object file path if -save-temps=obj + if (!AtTopLevel && isSaveTempsObj() && C.getArgs().hasArg(options::OPT_o) && + JA.getType() != types::TY_PCH) { + Arg *FinalOutput = C.getArgs().getLastArg(options::OPT_o); + SmallString<128> TempPath(FinalOutput->getValue()); + llvm::sys::path::remove_filename(TempPath); + StringRef OutputFileName = llvm::sys::path::filename(NamedOutput); + llvm::sys::path::append(TempPath, OutputFileName); + NamedOutput = C.getArgs().MakeArgString(TempPath.c_str()); + } + + // If we're saving temps and the temp file conflicts with the input file, + // then avoid overwriting input file. + if (!AtTopLevel && isSaveTempsEnabled() && NamedOutput == BaseName) { + bool SameFile = false; + SmallString<256> Result; + llvm::sys::fs::current_path(Result); + llvm::sys::path::append(Result, BaseName); + llvm::sys::fs::equivalent(BaseInput, Result.c_str(), SameFile); + // Must share the same path to conflict. + if (SameFile) { + StringRef Name = llvm::sys::path::filename(BaseInput); + std::pair<StringRef, StringRef> Split = Name.split('.'); + std::string TmpName = GetTemporaryPath( + Split.first, types::getTypeTempSuffix(JA.getType(), IsCLMode())); + return C.addTempFile(C.getArgs().MakeArgString(TmpName.c_str())); + } + } + + // As an annoying special case, PCH generation doesn't strip the pathname. + if (JA.getType() == types::TY_PCH) { + llvm::sys::path::remove_filename(BasePath); + if (BasePath.empty()) + BasePath = NamedOutput; + else + llvm::sys::path::append(BasePath, NamedOutput); + return C.addResultFile(C.getArgs().MakeArgString(BasePath.c_str()), &JA); + } else { + return C.addResultFile(NamedOutput, &JA); + } +} + +std::string Driver::GetFilePath(const char *Name, const ToolChain &TC) const { + // Respect a limited subset of the '-Bprefix' functionality in GCC by + // attempting to use this prefix when looking for file paths. + for (const std::string &Dir : PrefixDirs) { + if (Dir.empty()) + continue; + SmallString<128> P(Dir[0] == '=' ? SysRoot + Dir.substr(1) : Dir); + llvm::sys::path::append(P, Name); + if (llvm::sys::fs::exists(Twine(P))) + return P.str(); + } + + SmallString<128> P(ResourceDir); + llvm::sys::path::append(P, Name); + if (llvm::sys::fs::exists(Twine(P))) + return P.str(); + + for (const std::string &Dir : TC.getFilePaths()) { + if (Dir.empty()) + continue; + SmallString<128> P(Dir[0] == '=' ? SysRoot + Dir.substr(1) : Dir); + llvm::sys::path::append(P, Name); + if (llvm::sys::fs::exists(Twine(P))) + return P.str(); + } + + return Name; +} + +void Driver::generatePrefixedToolNames( + const char *Tool, const ToolChain &TC, + SmallVectorImpl<std::string> &Names) const { + // FIXME: Needs a better variable than DefaultTargetTriple + Names.emplace_back(DefaultTargetTriple + "-" + Tool); + Names.emplace_back(Tool); + + // Allow the discovery of tools prefixed with LLVM's default target triple. + std::string LLVMDefaultTargetTriple = llvm::sys::getDefaultTargetTriple(); + if (LLVMDefaultTargetTriple != DefaultTargetTriple) + Names.emplace_back(LLVMDefaultTargetTriple + "-" + Tool); +} + +static bool ScanDirForExecutable(SmallString<128> &Dir, + ArrayRef<std::string> Names) { + for (const auto &Name : Names) { + llvm::sys::path::append(Dir, Name); + if (llvm::sys::fs::can_execute(Twine(Dir))) + return true; + llvm::sys::path::remove_filename(Dir); + } + return false; +} + +std::string Driver::GetProgramPath(const char *Name, + const ToolChain &TC) const { + SmallVector<std::string, 2> TargetSpecificExecutables; + generatePrefixedToolNames(Name, TC, TargetSpecificExecutables); + + // Respect a limited subset of the '-Bprefix' functionality in GCC by + // attempting to use this prefix when looking for program paths. + for (const auto &PrefixDir : PrefixDirs) { + if (llvm::sys::fs::is_directory(PrefixDir)) { + SmallString<128> P(PrefixDir); + if (ScanDirForExecutable(P, TargetSpecificExecutables)) + return P.str(); + } else { + SmallString<128> P(PrefixDir + Name); + if (llvm::sys::fs::can_execute(Twine(P))) + return P.str(); + } + } + + const ToolChain::path_list &List = TC.getProgramPaths(); + for (const auto &Path : List) { + SmallString<128> P(Path); + if (ScanDirForExecutable(P, TargetSpecificExecutables)) + return P.str(); + } + + // If all else failed, search the path. + for (const auto &TargetSpecificExecutable : TargetSpecificExecutables) + if (llvm::ErrorOr<std::string> P = + llvm::sys::findProgramByName(TargetSpecificExecutable)) + return *P; + + return Name; +} + +std::string Driver::GetTemporaryPath(StringRef Prefix, + const char *Suffix) const { + SmallString<128> Path; + std::error_code EC = llvm::sys::fs::createTemporaryFile(Prefix, Suffix, Path); + if (EC) { + Diag(clang::diag::err_unable_to_make_temp) << EC.message(); + return ""; + } + + return Path.str(); +} + +const ToolChain &Driver::getToolChain(const ArgList &Args, + const llvm::Triple &Target) const { + + ToolChain *&TC = ToolChains[Target.str()]; + if (!TC) { + switch (Target.getOS()) { + case llvm::Triple::CloudABI: + TC = new toolchains::CloudABI(*this, Target, Args); + break; + case llvm::Triple::Darwin: + case llvm::Triple::MacOSX: + case llvm::Triple::IOS: + case llvm::Triple::TvOS: + case llvm::Triple::WatchOS: + TC = new toolchains::DarwinClang(*this, Target, Args); + break; + case llvm::Triple::DragonFly: + TC = new toolchains::DragonFly(*this, Target, Args); + break; + case llvm::Triple::OpenBSD: + TC = new toolchains::OpenBSD(*this, Target, Args); + break; + case llvm::Triple::Bitrig: + TC = new toolchains::Bitrig(*this, Target, Args); + break; + case llvm::Triple::NetBSD: + TC = new toolchains::NetBSD(*this, Target, Args); + break; + case llvm::Triple::FreeBSD: + TC = new toolchains::FreeBSD(*this, Target, Args); + break; + case llvm::Triple::Minix: + TC = new toolchains::Minix(*this, Target, Args); + break; + case llvm::Triple::Linux: + if (Target.getArch() == llvm::Triple::hexagon) + TC = new toolchains::HexagonToolChain(*this, Target, Args); + else if ((Target.getVendor() == llvm::Triple::MipsTechnologies) && + !Target.hasEnvironment()) + TC = new toolchains::MipsLLVMToolChain(*this, Target, Args); + else + TC = new toolchains::Linux(*this, Target, Args); + break; + case llvm::Triple::NaCl: + TC = new toolchains::NaClToolChain(*this, Target, Args); + break; + case llvm::Triple::Solaris: + TC = new toolchains::Solaris(*this, Target, Args); + break; + case llvm::Triple::AMDHSA: + TC = new toolchains::AMDGPUToolChain(*this, Target, Args); + break; + case llvm::Triple::Win32: + switch (Target.getEnvironment()) { + default: + if (Target.isOSBinFormatELF()) + TC = new toolchains::Generic_ELF(*this, Target, Args); + else if (Target.isOSBinFormatMachO()) + TC = new toolchains::MachO(*this, Target, Args); + else + TC = new toolchains::Generic_GCC(*this, Target, Args); + break; + case llvm::Triple::GNU: + TC = new toolchains::MinGW(*this, Target, Args); + break; + case llvm::Triple::Itanium: + TC = new toolchains::CrossWindowsToolChain(*this, Target, Args); + break; + case llvm::Triple::MSVC: + case llvm::Triple::UnknownEnvironment: + TC = new toolchains::MSVCToolChain(*this, Target, Args); + break; + } + break; + case llvm::Triple::CUDA: + TC = new toolchains::CudaToolChain(*this, Target, Args); + break; + case llvm::Triple::PS4: + TC = new toolchains::PS4CPU(*this, Target, Args); + break; + default: + // Of these targets, Hexagon is the only one that might have + // an OS of Linux, in which case it got handled above already. + switch (Target.getArch()) { + case llvm::Triple::tce: + TC = new toolchains::TCEToolChain(*this, Target, Args); + break; + case llvm::Triple::hexagon: + TC = new toolchains::HexagonToolChain(*this, Target, Args); + break; + case llvm::Triple::xcore: + TC = new toolchains::XCoreToolChain(*this, Target, Args); + break; + case llvm::Triple::wasm32: + case llvm::Triple::wasm64: + TC = new toolchains::WebAssembly(*this, Target, Args); + break; + default: + if (Target.getVendor() == llvm::Triple::Myriad) + TC = new toolchains::MyriadToolChain(*this, Target, Args); + else if (Target.isOSBinFormatELF()) + TC = new toolchains::Generic_ELF(*this, Target, Args); + else if (Target.isOSBinFormatMachO()) + TC = new toolchains::MachO(*this, Target, Args); + else + TC = new toolchains::Generic_GCC(*this, Target, Args); + } + } + } + return *TC; +} + +bool Driver::ShouldUseClangCompiler(const JobAction &JA) const { + // Say "no" if there is not exactly one input of a type clang understands. + if (JA.size() != 1 || !types::isAcceptedByClang((*JA.begin())->getType())) + return false; + + // And say "no" if this is not a kind of action clang understands. + if (!isa<PreprocessJobAction>(JA) && !isa<PrecompileJobAction>(JA) && + !isa<CompileJobAction>(JA) && !isa<BackendJobAction>(JA)) + return false; + + return true; +} + +/// GetReleaseVersion - Parse (([0-9]+)(.([0-9]+)(.([0-9]+)?))?)? and return the +/// grouped values as integers. Numbers which are not provided are set to 0. +/// +/// \return True if the entire string was parsed (9.2), or all groups were +/// parsed (10.3.5extrastuff). +bool Driver::GetReleaseVersion(const char *Str, unsigned &Major, + unsigned &Minor, unsigned &Micro, + bool &HadExtra) { + HadExtra = false; + + Major = Minor = Micro = 0; + if (*Str == '\0') + return false; + + char *End; + Major = (unsigned)strtol(Str, &End, 10); + if (*Str != '\0' && *End == '\0') + return true; + if (*End != '.') + return false; + + Str = End + 1; + Minor = (unsigned)strtol(Str, &End, 10); + if (*Str != '\0' && *End == '\0') + return true; + if (*End != '.') + return false; + + Str = End + 1; + Micro = (unsigned)strtol(Str, &End, 10); + if (*Str != '\0' && *End == '\0') + return true; + if (Str == End) + return false; + HadExtra = true; + return true; +} + +std::pair<unsigned, unsigned> Driver::getIncludeExcludeOptionFlagMasks() const { + unsigned IncludedFlagsBitmask = 0; + unsigned ExcludedFlagsBitmask = options::NoDriverOption; + + if (Mode == CLMode) { + // Include CL and Core options. + IncludedFlagsBitmask |= options::CLOption; + IncludedFlagsBitmask |= options::CoreOption; + } else { + ExcludedFlagsBitmask |= options::CLOption; + } + + return std::make_pair(IncludedFlagsBitmask, ExcludedFlagsBitmask); +} + +bool clang::driver::isOptimizationLevelFast(const ArgList &Args) { + return Args.hasFlag(options::OPT_Ofast, options::OPT_O_Group, false); +} diff --git a/contrib/llvm/tools/clang/lib/Driver/DriverOptions.cpp b/contrib/llvm/tools/clang/lib/Driver/DriverOptions.cpp new file mode 100644 index 0000000..8d5332b --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/DriverOptions.cpp @@ -0,0 +1,44 @@ +//===--- DriverOptions.cpp - Driver Options Table -------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "clang/Driver/Options.h" +#include "llvm/ADT/STLExtras.h" +#include "llvm/Option/OptTable.h" +#include "llvm/Option/Option.h" + +using namespace clang::driver; +using namespace clang::driver::options; +using namespace llvm::opt; + +#define PREFIX(NAME, VALUE) static const char *const NAME[] = VALUE; +#include "clang/Driver/Options.inc" +#undef PREFIX + +static const OptTable::Info InfoTable[] = { +#define OPTION(PREFIX, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ + HELPTEXT, METAVAR) \ + { PREFIX, NAME, HELPTEXT, METAVAR, OPT_##ID, Option::KIND##Class, PARAM, \ + FLAGS, OPT_##GROUP, OPT_##ALIAS, ALIASARGS }, +#include "clang/Driver/Options.inc" +#undef OPTION +}; + +namespace { + +class DriverOptTable : public OptTable { +public: + DriverOptTable() + : OptTable(InfoTable) {} +}; + +} + +OptTable *clang::driver::createDriverOptTable() { + return new DriverOptTable(); +} diff --git a/contrib/llvm/tools/clang/lib/Driver/InputInfo.h b/contrib/llvm/tools/clang/lib/Driver/InputInfo.h new file mode 100644 index 0000000..b23ba57 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/InputInfo.h @@ -0,0 +1,89 @@ +//===--- InputInfo.h - Input Source & Type Information ----------*- 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_INPUTINFO_H +#define LLVM_CLANG_LIB_DRIVER_INPUTINFO_H + +#include "clang/Driver/Types.h" +#include "llvm/Option/Arg.h" +#include <cassert> +#include <string> + +namespace clang { +namespace driver { + +/// InputInfo - Wrapper for information about an input source. +class InputInfo { + // FIXME: The distinction between filenames and inputarg here is + // gross; we should probably drop the idea of a "linker + // input". Doing so means tweaking pipelining to still create link + // steps when it sees linker inputs (but not treat them as + // arguments), and making sure that arguments get rendered + // correctly. + enum Class { + Nothing, + Filename, + InputArg, + Pipe + }; + + union { + const char *Filename; + const llvm::opt::Arg *InputArg; + } Data; + Class Kind; + types::ID Type; + const char *BaseInput; + +public: + InputInfo() {} + InputInfo(types::ID _Type, const char *_BaseInput) + : Kind(Nothing), Type(_Type), BaseInput(_BaseInput) { + } + InputInfo(const char *_Filename, types::ID _Type, const char *_BaseInput) + : Kind(Filename), Type(_Type), BaseInput(_BaseInput) { + Data.Filename = _Filename; + } + InputInfo(const llvm::opt::Arg *_InputArg, types::ID _Type, + const char *_BaseInput) + : Kind(InputArg), Type(_Type), BaseInput(_BaseInput) { + Data.InputArg = _InputArg; + } + + bool isNothing() const { return Kind == Nothing; } + bool isFilename() const { return Kind == Filename; } + bool isInputArg() const { return Kind == InputArg; } + types::ID getType() const { return Type; } + const char *getBaseInput() const { return BaseInput; } + + const char *getFilename() const { + assert(isFilename() && "Invalid accessor."); + return Data.Filename; + } + const llvm::opt::Arg &getInputArg() const { + assert(isInputArg() && "Invalid accessor."); + return *Data.InputArg; + } + + /// getAsString - Return a string name for this input, for + /// debugging. + std::string getAsString() const { + if (isFilename()) + return std::string("\"") + getFilename() + '"'; + else if (isInputArg()) + return "(input arg)"; + else + return "(nothing)"; + } +}; + +} // end namespace driver +} // end namespace clang + +#endif diff --git a/contrib/llvm/tools/clang/lib/Driver/Job.cpp b/contrib/llvm/tools/clang/lib/Driver/Job.cpp new file mode 100644 index 0000000..22904e5 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/Job.cpp @@ -0,0 +1,306 @@ +//===--- Job.cpp - Command to Execute -------------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "InputInfo.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Job.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/ToolChain.h" +#include "llvm/ADT/ArrayRef.h" +#include "llvm/ADT/STLExtras.h" +#include "llvm/ADT/StringRef.h" +#include "llvm/ADT/StringSet.h" +#include "llvm/ADT/StringSwitch.h" +#include "llvm/Support/Program.h" +#include "llvm/Support/raw_ostream.h" +#include <cassert> +using namespace clang::driver; +using llvm::raw_ostream; +using llvm::StringRef; +using llvm::ArrayRef; + +Command::Command(const Action &Source, const Tool &Creator, + const char *Executable, const ArgStringList &Arguments, + ArrayRef<InputInfo> Inputs) + : Source(Source), Creator(Creator), Executable(Executable), + Arguments(Arguments), ResponseFile(nullptr) { + for (const auto &II : Inputs) + if (II.isFilename()) + InputFilenames.push_back(II.getFilename()); +} + +static int skipArgs(const char *Flag, bool HaveCrashVFS) { + // These flags are all of the form -Flag <Arg> and are treated as two + // arguments. Therefore, we need to skip the flag and the next argument. + bool Res = llvm::StringSwitch<bool>(Flag) + .Cases("-I", "-MF", "-MT", "-MQ", true) + .Cases("-o", "-coverage-file", "-dependency-file", true) + .Cases("-fdebug-compilation-dir", "-idirafter", true) + .Cases("-include", "-include-pch", "-internal-isystem", true) + .Cases("-internal-externc-isystem", "-iprefix", "-iwithprefix", true) + .Cases("-iwithprefixbefore", "-isystem", "-iquote", true) + .Cases("-resource-dir", "-serialize-diagnostic-file", true) + .Cases("-dwarf-debug-flags", "-ivfsoverlay", true) + .Cases("-header-include-file", "-diagnostic-log-file", true) + // Some include flags shouldn't be skipped if we have a crash VFS + .Case("-isysroot", !HaveCrashVFS) + .Default(false); + + // Match found. + if (Res) + return 2; + + // The remaining flags are treated as a single argument. + + // These flags are all of the form -Flag and have no second argument. + Res = llvm::StringSwitch<bool>(Flag) + .Cases("-M", "-MM", "-MG", "-MP", "-MD", true) + .Case("-MMD", true) + .Default(false); + + // Match found. + if (Res) + return 1; + + // These flags are treated as a single argument (e.g., -F<Dir>). + StringRef FlagRef(Flag); + if (FlagRef.startswith("-F") || FlagRef.startswith("-I") || + FlagRef.startswith("-fmodules-cache-path=")) + return 1; + + return 0; +} + +void Command::printArg(raw_ostream &OS, const char *Arg, bool Quote) { + const bool Escape = std::strpbrk(Arg, "\"\\$"); + + if (!Quote && !Escape) { + OS << Arg; + return; + } + + // Quote and escape. This isn't really complete, but good enough. + OS << '"'; + while (const char c = *Arg++) { + if (c == '"' || c == '\\' || c == '$') + OS << '\\'; + OS << c; + } + OS << '"'; +} + +void Command::writeResponseFile(raw_ostream &OS) const { + // In a file list, we only write the set of inputs to the response file + if (Creator.getResponseFilesSupport() == Tool::RF_FileList) { + for (const char *Arg : InputFileList) { + OS << Arg << '\n'; + } + return; + } + + // In regular response files, we send all arguments to the response file. + // Wrapping all arguments in double quotes ensures that both Unix tools and + // Windows tools understand the response file. + for (const char *Arg : Arguments) { + OS << '"'; + + for (; *Arg != '\0'; Arg++) { + if (*Arg == '\"' || *Arg == '\\') { + OS << '\\'; + } + OS << *Arg; + } + + OS << "\" "; + } +} + +void Command::buildArgvForResponseFile( + llvm::SmallVectorImpl<const char *> &Out) const { + // When not a file list, all arguments are sent to the response file. + // This leaves us to set the argv to a single parameter, requesting the tool + // to read the response file. + if (Creator.getResponseFilesSupport() != Tool::RF_FileList) { + Out.push_back(Executable); + Out.push_back(ResponseFileFlag.c_str()); + return; + } + + llvm::StringSet<> Inputs; + for (const char *InputName : InputFileList) + Inputs.insert(InputName); + Out.push_back(Executable); + // In a file list, build args vector ignoring parameters that will go in the + // response file (elements of the InputFileList vector) + bool FirstInput = true; + for (const char *Arg : Arguments) { + if (Inputs.count(Arg) == 0) { + Out.push_back(Arg); + } else if (FirstInput) { + FirstInput = false; + Out.push_back(Creator.getResponseFileFlag()); + Out.push_back(ResponseFile); + } + } +} + +void Command::Print(raw_ostream &OS, const char *Terminator, bool Quote, + CrashReportInfo *CrashInfo) const { + // Always quote the exe. + OS << ' '; + printArg(OS, Executable, /*Quote=*/true); + + llvm::ArrayRef<const char *> Args = Arguments; + llvm::SmallVector<const char *, 128> ArgsRespFile; + if (ResponseFile != nullptr) { + buildArgvForResponseFile(ArgsRespFile); + Args = ArrayRef<const char *>(ArgsRespFile).slice(1); // no executable name + } + + bool HaveCrashVFS = CrashInfo && !CrashInfo->VFSPath.empty(); + for (size_t i = 0, e = Args.size(); i < e; ++i) { + const char *const Arg = Args[i]; + + if (CrashInfo) { + if (int Skip = skipArgs(Arg, HaveCrashVFS)) { + i += Skip - 1; + continue; + } + auto Found = std::find_if(InputFilenames.begin(), InputFilenames.end(), + [&Arg](StringRef IF) { return IF == Arg; }); + if (Found != InputFilenames.end() && + (i == 0 || StringRef(Args[i - 1]) != "-main-file-name")) { + // Replace the input file name with the crashinfo's file name. + OS << ' '; + StringRef ShortName = llvm::sys::path::filename(CrashInfo->Filename); + printArg(OS, ShortName.str().c_str(), Quote); + continue; + } + } + + OS << ' '; + printArg(OS, Arg, Quote); + } + + if (CrashInfo && HaveCrashVFS) { + OS << ' '; + printArg(OS, "-ivfsoverlay", Quote); + OS << ' '; + printArg(OS, CrashInfo->VFSPath.str().c_str(), Quote); + } + + if (ResponseFile != nullptr) { + OS << "\n Arguments passed via response file:\n"; + writeResponseFile(OS); + // Avoiding duplicated newline terminator, since FileLists are + // newline-separated. + if (Creator.getResponseFilesSupport() != Tool::RF_FileList) + OS << "\n"; + OS << " (end of response file)"; + } + + OS << Terminator; +} + +void Command::setResponseFile(const char *FileName) { + ResponseFile = FileName; + ResponseFileFlag = Creator.getResponseFileFlag(); + ResponseFileFlag += FileName; +} + +int Command::Execute(const StringRef **Redirects, std::string *ErrMsg, + bool *ExecutionFailed) const { + SmallVector<const char*, 128> Argv; + + if (ResponseFile == nullptr) { + Argv.push_back(Executable); + Argv.append(Arguments.begin(), Arguments.end()); + Argv.push_back(nullptr); + + return llvm::sys::ExecuteAndWait(Executable, Argv.data(), /*env*/ nullptr, + Redirects, /*secondsToWait*/ 0, + /*memoryLimit*/ 0, ErrMsg, + ExecutionFailed); + } + + // We need to put arguments in a response file (command is too large) + // Open stream to store the response file contents + std::string RespContents; + llvm::raw_string_ostream SS(RespContents); + + // Write file contents and build the Argv vector + writeResponseFile(SS); + buildArgvForResponseFile(Argv); + Argv.push_back(nullptr); + SS.flush(); + + // Save the response file in the appropriate encoding + if (std::error_code EC = writeFileWithEncoding( + ResponseFile, RespContents, Creator.getResponseFileEncoding())) { + if (ErrMsg) + *ErrMsg = EC.message(); + if (ExecutionFailed) + *ExecutionFailed = true; + return -1; + } + + return llvm::sys::ExecuteAndWait(Executable, Argv.data(), /*env*/ nullptr, + Redirects, /*secondsToWait*/ 0, + /*memoryLimit*/ 0, ErrMsg, ExecutionFailed); +} + +FallbackCommand::FallbackCommand(const Action &Source_, const Tool &Creator_, + const char *Executable_, + const ArgStringList &Arguments_, + ArrayRef<InputInfo> Inputs, + std::unique_ptr<Command> Fallback_) + : Command(Source_, Creator_, Executable_, Arguments_, Inputs), + Fallback(std::move(Fallback_)) {} + +void FallbackCommand::Print(raw_ostream &OS, const char *Terminator, + bool Quote, CrashReportInfo *CrashInfo) const { + Command::Print(OS, "", Quote, CrashInfo); + OS << " ||"; + Fallback->Print(OS, Terminator, Quote, CrashInfo); +} + +static bool ShouldFallback(int ExitCode) { + // FIXME: We really just want to fall back for internal errors, such + // as when some symbol cannot be mangled, when we should be able to + // parse something but can't, etc. + return ExitCode != 0; +} + +int FallbackCommand::Execute(const StringRef **Redirects, std::string *ErrMsg, + bool *ExecutionFailed) const { + int PrimaryStatus = Command::Execute(Redirects, ErrMsg, ExecutionFailed); + if (!ShouldFallback(PrimaryStatus)) + return PrimaryStatus; + + // Clear ExecutionFailed and ErrMsg before falling back. + if (ErrMsg) + ErrMsg->clear(); + if (ExecutionFailed) + *ExecutionFailed = false; + + const Driver &D = getCreator().getToolChain().getDriver(); + D.Diag(diag::warn_drv_invoking_fallback) << Fallback->getExecutable(); + + int SecondaryStatus = Fallback->Execute(Redirects, ErrMsg, ExecutionFailed); + return SecondaryStatus; +} + +void JobList::Print(raw_ostream &OS, const char *Terminator, bool Quote, + CrashReportInfo *CrashInfo) const { + for (const auto &Job : *this) + Job.Print(OS, Terminator, Quote, CrashInfo); +} + +void JobList::clear() { Jobs.clear(); } diff --git a/contrib/llvm/tools/clang/lib/Driver/MSVCToolChain.cpp b/contrib/llvm/tools/clang/lib/Driver/MSVCToolChain.cpp new file mode 100644 index 0000000..b7e576e --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/MSVCToolChain.cpp @@ -0,0 +1,744 @@ +//===--- 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 "ToolChains.h" +#include "Tools.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 "llvm/ADT/StringExtras.h" +#include "llvm/Config/llvm-config.h" +#include "llvm/Option/Arg.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Support/ErrorHandling.h" +#include "llvm/Support/FileSystem.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 + +using namespace clang::driver; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +MSVCToolChain::MSVCToolChain(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); +} + +Tool *MSVCToolChain::buildLinker() const { + 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 { + // 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. + 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; +} + +#ifdef USE_WIN32 +static bool readFullStringValue(HKEY hkey, const char *valueName, + std::string &value) { + // FIXME: We should be using the W versions of the registry functions, but + // doing so requires UTF8 / UTF16 conversions similar to how we handle command + // line arguments. The UTF8 conversion functions are not exposed publicly + // from LLVM though, so in order to do this we will probably need to create + // a registry abstraction in LLVMSupport that is Windows only. + DWORD result = 0; + DWORD valueSize = 0; + DWORD type = 0; + // First just query for the required size. + result = RegQueryValueEx(hkey, valueName, NULL, &type, NULL, &valueSize); + if (result != ERROR_SUCCESS || type != REG_SZ) + return false; + std::vector<BYTE> buffer(valueSize); + result = RegQueryValueEx(hkey, valueName, NULL, NULL, &buffer[0], &valueSize); + if (result == ERROR_SUCCESS) + value.assign(reinterpret_cast<const char *>(buffer.data())); + return result; +} +#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); + strncpy(partialKey, keyPath, partialKeyLength); + partialKey[partialKeyLength] = '\0'; + HKEY hTopKey = NULL; + lResult = RegOpenKeyEx(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; RegEnumKeyEx(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 = RegOpenKeyEx(hTopKey, bestName.c_str(), 0, + KEY_READ | KEY_WOW64_32KEY, &hKey); + if (lResult == ERROR_SUCCESS) { + lResult = readFullStringValue(hKey, valueName, value); + if (lResult == ERROR_SUCCESS) { + bestValue = dvalue; + if (phValue) + *phValue = bestName; + returnValue = true; + } + RegCloseKey(hKey); + } + } + size = sizeof(keyName) - 1; + } + RegCloseKey(hTopKey); + } + } else { + lResult = + RegOpenKeyEx(hRootKey, keyPath, 0, KEY_READ | KEY_WOW64_32KEY, &hKey); + if (lResult == ERROR_SUCCESS) { + lResult = readFullStringValue(hKey, valueName, value); + if (lResult == ERROR_SUCCESS) + returnValue = true; + if (phValue) + phValue->clear(); + RegCloseKey(hKey); + } + } + return returnValue; +#endif // USE_WIN32 +} + +// Convert LLVM's ArchType +// to the corresponding name of Windows SDK libraries subfolder +static StringRef getWindowsSDKArch(llvm::Triple::ArchType Arch) { + switch (Arch) { + case llvm::Triple::x86: + return "x86"; + case llvm::Triple::x86_64: + return "x64"; + case llvm::Triple::arm: + return "arm"; + default: + return ""; + } +} + +// 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 getWindows10SDKVersion(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. +bool MSVCToolChain::getWindowsSDKDir(std::string &Path, int &Major, + std::string &WindowsSDKIncludeVersion, + std::string &WindowsSDKLibVersion) const { + 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 (!getWindows10SDKVersion(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 <= 7) { + 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; + } + } else { + const StringRef archName = getWindowsSDKArch(getArch()); + if (archName.empty()) + return false; + llvm::sys::path::append(libPath, windowsSDKLibVersion, "um", archName); + } + + 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 clang::driver::toolchains::MSVCToolChain::useUniversalCRT( + std::string &VisualStudioDir) const { + llvm::SmallString<128> TestPath(VisualStudioDir); + llvm::sys::path::append(TestPath, "VC\\include\\stdlib.h"); + + return !llvm::sys::fs::exists(TestPath); +} + +bool MSVCToolChain::getUniversalCRTSdkDir(std::string &Path, + std::string &UCRTVersion) const { + // 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 getWindows10SDKVersion(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 = getWindowsSDKArch(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; +} + +// Get the location to use for Visual Studio binaries. The location priority +// is: %VCINSTALLDIR% > %PATH% > newest copy of Visual Studio installed on +// system (as reported by the registry). +bool MSVCToolChain::getVisualStudioBinariesFolder(const char *clangProgramPath, + std::string &path) const { + path.clear(); + + SmallString<128> BinDir; + + // First check the environment variables that vsvars32.bat sets. + llvm::Optional<std::string> VcInstallDir = + llvm::sys::Process::GetEnv("VCINSTALLDIR"); + if (VcInstallDir.hasValue()) { + BinDir = VcInstallDir.getValue(); + llvm::sys::path::append(BinDir, "bin"); + } else { + // Next walk the PATH, trying to find a cl.exe in the path. If we find one, + // use that. However, make sure it's not clang's cl.exe. + llvm::Optional<std::string> OptPath = llvm::sys::Process::GetEnv("PATH"); + if (OptPath.hasValue()) { + const char EnvPathSeparatorStr[] = {llvm::sys::EnvPathSeparator, '\0'}; + SmallVector<StringRef, 8> PathSegments; + llvm::SplitString(OptPath.getValue(), PathSegments, EnvPathSeparatorStr); + + for (StringRef PathSegment : PathSegments) { + if (PathSegment.empty()) + continue; + + SmallString<128> FilePath(PathSegment); + llvm::sys::path::append(FilePath, "cl.exe"); + if (llvm::sys::fs::can_execute(FilePath.c_str()) && + !llvm::sys::fs::equivalent(FilePath.c_str(), clangProgramPath)) { + // If we found it on the PATH, use it exactly as is with no + // modifications. + path = PathSegment; + return true; + } + } + } + + std::string installDir; + // With no VCINSTALLDIR and nothing on the PATH, if we can't find it in the + // registry then we have no choice but to fail. + if (!getVisualStudioInstallDir(installDir)) + return false; + + // Regardless of what binary we're ultimately trying to find, we make sure + // that this is a Visual Studio directory by checking for cl.exe. We use + // cl.exe instead of other binaries like link.exe because programs such as + // GnuWin32 also have a utility called link.exe, so cl.exe is the least + // ambiguous. + BinDir = installDir; + llvm::sys::path::append(BinDir, "VC", "bin"); + SmallString<128> ClPath(BinDir); + llvm::sys::path::append(ClPath, "cl.exe"); + + if (!llvm::sys::fs::can_execute(ClPath.c_str())) + return false; + } + + if (BinDir.empty()) + return false; + + switch (getArch()) { + case llvm::Triple::x86: + break; + case llvm::Triple::x86_64: + llvm::sys::path::append(BinDir, "amd64"); + break; + case llvm::Triple::arm: + llvm::sys::path::append(BinDir, "arm"); + break; + default: + // Whatever this is, Visual Studio doesn't have a toolchain for it. + return false; + } + path = BinDir.str(); + return true; +} + +// Get Visual Studio installation directory. +bool MSVCToolChain::getVisualStudioInstallDir(std::string &path) const { + // First check the environment variables that vsvars32.bat sets. + const char *vcinstalldir = getenv("VCINSTALLDIR"); + if (vcinstalldir) { + path = vcinstalldir; + path = path.substr(0, path.find("\\VC")); + return true; + } + + std::string vsIDEInstallDir; + std::string vsExpressIDEInstallDir; + // Then try the windows registry. + bool hasVCDir = + getSystemRegistryString("SOFTWARE\\Microsoft\\VisualStudio\\$VERSION", + "InstallDir", vsIDEInstallDir, nullptr); + if (hasVCDir && !vsIDEInstallDir.empty()) { + path = vsIDEInstallDir.substr(0, vsIDEInstallDir.find("\\Common7\\IDE")); + return true; + } + + bool hasVCExpressDir = + getSystemRegistryString("SOFTWARE\\Microsoft\\VCExpress\\$VERSION", + "InstallDir", vsExpressIDEInstallDir, nullptr); + if (hasVCExpressDir && !vsExpressIDEInstallDir.empty()) { + path = vsExpressIDEInstallDir.substr( + 0, vsIDEInstallDir.find("\\Common7\\IDE")); + return true; + } + + // Try the environment. + const char *vs120comntools = getenv("VS120COMNTOOLS"); + const char *vs100comntools = getenv("VS100COMNTOOLS"); + const char *vs90comntools = getenv("VS90COMNTOOLS"); + const char *vs80comntools = getenv("VS80COMNTOOLS"); + + const char *vscomntools = nullptr; + + // Find any version we can + if (vs120comntools) + vscomntools = vs120comntools; + else if (vs100comntools) + vscomntools = vs100comntools; + else if (vs90comntools) + vscomntools = vs90comntools; + else if (vs80comntools) + vscomntools = vs80comntools; + + if (vscomntools && *vscomntools) { + const char *p = strstr(vscomntools, "\\Common7\\Tools"); + path = p ? std::string(vscomntools, p) : vscomntools; + return true; + } + return false; +} + +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"); + } + + if (DriverArgs.hasArg(options::OPT_nostdlibinc)) + return; + + // Honor %INCLUDE%. It should know essential search paths with vcvarsall.bat. + if (const char *cl_include_dir = 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; + } + + std::string VSDir; + + // When built with access to the proper Windows APIs, try to actually find + // the correct include paths first. + if (getVisualStudioInstallDir(VSDir)) { + AddSystemIncludeWithSubfolder(DriverArgs, CC1Args, VSDir, "VC\\include"); + + if (useUniversalCRT(VSDir)) { + 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"); + } + } else { + addSystemInclude(DriverArgs, CC1Args, VSDir); + } + return; + } + + // 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); +} + +void MSVCToolChain::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + // FIXME: There should probably be logic here to find libc++ on Windows. +} + +std::string +MSVCToolChain::ComputeEffectiveClangTriple(const ArgList &Args, + types::ID InputType) const { + std::string TripleStr = + ToolChain::ComputeEffectiveClangTriple(Args, InputType); + llvm::Triple Triple(TripleStr); + VersionTuple MSVT = + tools::visualstudio::getMSVCVersion(/*D=*/nullptr, Triple, Args, + /*IsWindowsMSVC=*/true); + if (MSVT.empty()) + return TripleStr; + + MSVT = VersionTuple(MSVT.getMajor(), MSVT.getMinor().getValueOr(0), + MSVT.getSubminor().getValueOr(0)); + + 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; +} + +llvm::opt::DerivedArgList * +MSVCToolChain::TranslateArgs(const llvm::opt::DerivedArgList &Args, + const char *BoundArch) 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) { + const char &OptChar = *(OptStr.data() + I); + if (OptChar == '1' || OptChar == '2' || OptChar == 'x' || OptChar == 'd') + ExpandChar = OptStr.data() + I; + } + } + + // The -O flag actually takes an amalgam of other options. For example, + // '/Ogyb2' is equivalent to '/Og' '/Oy' '/Ob2'. + for (Arg *A : Args) { + if (!A->getOption().matches(options::OPT__SLASH_O)) { + DAL->append(A); + continue; + } + + 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->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])) + ++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)); + } + break; + } + } + } + } + return DAL; +} diff --git a/contrib/llvm/tools/clang/lib/Driver/MinGWToolChain.cpp b/contrib/llvm/tools/clang/lib/Driver/MinGWToolChain.cpp new file mode 100644 index 0000000..c5287bb --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/MinGWToolChain.cpp @@ -0,0 +1,244 @@ +//===--- MinGWToolChain.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 "ToolChains.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/Options.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Support/FileSystem.h" +#include "llvm/Support/Path.h" + +using namespace clang::diag; +using namespace clang::driver; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +namespace { +// Simplified from Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple. +bool findGccVersion(StringRef LibDir, std::string &GccLibDir, + std::string &Ver) { + Generic_GCC::GCCVersion Version = 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()); + Generic_GCC::GCCVersion CandidateVersion = + Generic_GCC::GCCVersion::Parse(VersionText); + if (CandidateVersion.Major == -1) + continue; + if (CandidateVersion <= Version) + continue; + Ver = VersionText; + GccLibDir = LI->path(); + } + return Ver.size(); +} +} + +void 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; + } + } + } +} + +MinGW::MinGW(const Driver &D, const llvm::Triple &Triple, const ArgList &Args) + : ToolChain(D, Triple, Args) { + getProgramPaths().push_back(getDriver().getInstalledDir()); + + // On Windows if there is no sysroot we search for gcc on the PATH. + if (getDriver().SysRoot.size()) + Base = getDriver().SysRoot; +#ifdef LLVM_ON_WIN32 + else if (llvm::ErrorOr<std::string> GPPName = + llvm::sys::findProgramByName("gcc")) + Base = llvm::sys::path::parent_path( + llvm::sys::path::parent_path(GPPName.get())); +#endif + if (!Base.size()) + 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 MinGW::IsIntegratedAssemblerDefault() const { return true; } + +Tool *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 *MinGW::buildAssembler() const { + return new tools::MinGW::Assembler(*this); +} + +Tool *MinGW::buildLinker() const { return new tools::MinGW::Linker(*this); } + +bool MinGW::IsUnwindTablesDefault() const { + return getArch() == llvm::Triple::x86_64; +} + +bool MinGW::isPICDefault() const { return getArch() == llvm::Triple::x86_64; } + +bool MinGW::isPIEDefault() const { return false; } + +bool MinGW::isPICDefaultForced() const { + return getArch() == llvm::Triple::x86_64; +} + +bool MinGW::UseSEHExceptions() const { + return getArch() == llvm::Triple::x86_64; +} + +// 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\lib\gcc\mingw32\4.8.1\include +// c:\mingw\include +// c:\mingw\lib\gcc\mingw32\4.8.1\include-fixed +// c:\mingw\mingw32\include + +// Windows, mingw-w64 mingw-builds +// c:\mingw32\lib\gcc\i686-w64-mingw32\4.9.1\include +// c:\mingw32\lib\gcc\i686-w64-mingw32\4.9.1\include-fixed +// 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\lib\gcc\i686-w64-mingw32\4.9.2\include +// c:\msys64\mingw32\include +// c:\msys64\mingw32\lib\gcc\i686-w64-mingw32\4.9.2\include-fixed +// 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/lib64/gcc/x86_64-w64-mingw32/5.1.0/include +// /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/include-fixed +// /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/lib/gcc/i686-w64-mingw32/5.1.0/include +// /usr/lib/gcc/i686-w64-mingw32/5.1.0/include-fixed +// /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/lib/gcc/x86_64-w64-mingw32/4.8/include +// /usr/lib/gcc/x86_64-w64-mingw32/4.8/include-fixed +// /usr/x86_64-w64-mingw32/include + +void 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) { + llvm::SmallString<1024> IncludeDir(GccLibDir); + llvm::sys::path::append(IncludeDir, "include"); + addSystemInclude(DriverArgs, CC1Args, IncludeDir.c_str()); + IncludeDir += "-fixed"; + // openSUSE + addSystemInclude(DriverArgs, CC1Args, + Base + Arch + "/sys-root/mingw/include"); + addSystemInclude(DriverArgs, CC1Args, IncludeDir.c_str()); + } + addSystemInclude(DriverArgs, CC1Args, + Base + Arch + llvm::sys::path::get_separator() + "include"); + addSystemInclude(DriverArgs, CC1Args, Base + "include"); +} + +void 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/Multilib.cpp b/contrib/llvm/tools/clang/lib/Driver/Multilib.cpp new file mode 100644 index 0000000..34ad6a7 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/Multilib.cpp @@ -0,0 +1,294 @@ +//===--- Multilib.cpp - Multilib Implementation ---------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "clang/Driver/Multilib.h" +#include "Tools.h" +#include "clang/Driver/Options.h" +#include "llvm/ADT/StringMap.h" +#include "llvm/ADT/StringRef.h" +#include "llvm/ADT/StringSet.h" +#include "llvm/ADT/Triple.h" +#include "llvm/Option/Arg.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Option/OptTable.h" +#include "llvm/Option/Option.h" +#include "llvm/Support/MemoryBuffer.h" +#include "llvm/Support/Path.h" +#include "llvm/Support/Regex.h" +#include "llvm/Support/YAMLParser.h" +#include "llvm/Support/YAMLTraits.h" +#include "llvm/Support/raw_ostream.h" +#include <algorithm> + +using namespace clang::driver; +using namespace clang; +using namespace llvm::opt; +using namespace llvm::sys; + +/// normalize Segment to "/foo/bar" or "". +static void normalizePathSegment(std::string &Segment) { + StringRef seg = Segment; + + // Prune trailing "/" or "./" + while (1) { + StringRef last = path::filename(seg); + if (last != ".") + break; + seg = path::parent_path(seg); + } + + if (seg.empty() || seg == "/") { + Segment = ""; + return; + } + + // Add leading '/' + if (seg.front() != '/') { + Segment = "/" + seg.str(); + } else { + Segment = seg; + } +} + +Multilib::Multilib(StringRef GCCSuffix, StringRef OSSuffix, + StringRef IncludeSuffix) + : GCCSuffix(GCCSuffix), OSSuffix(OSSuffix), IncludeSuffix(IncludeSuffix) { + normalizePathSegment(this->GCCSuffix); + normalizePathSegment(this->OSSuffix); + normalizePathSegment(this->IncludeSuffix); +} + +Multilib &Multilib::gccSuffix(StringRef S) { + GCCSuffix = S; + normalizePathSegment(GCCSuffix); + return *this; +} + +Multilib &Multilib::osSuffix(StringRef S) { + OSSuffix = S; + normalizePathSegment(OSSuffix); + return *this; +} + +Multilib &Multilib::includeSuffix(StringRef S) { + IncludeSuffix = S; + normalizePathSegment(IncludeSuffix); + return *this; +} + +void Multilib::print(raw_ostream &OS) const { + assert(GCCSuffix.empty() || (StringRef(GCCSuffix).front() == '/')); + if (GCCSuffix.empty()) + OS << "."; + else { + OS << StringRef(GCCSuffix).drop_front(); + } + OS << ";"; + for (StringRef Flag : Flags) { + if (Flag.front() == '+') + OS << "@" << Flag.substr(1); + } +} + +bool Multilib::isValid() const { + llvm::StringMap<int> FlagSet; + for (unsigned I = 0, N = Flags.size(); I != N; ++I) { + StringRef Flag(Flags[I]); + llvm::StringMap<int>::iterator SI = FlagSet.find(Flag.substr(1)); + + assert(StringRef(Flag).front() == '+' || StringRef(Flag).front() == '-'); + + if (SI == FlagSet.end()) + FlagSet[Flag.substr(1)] = I; + else if (Flags[I] != Flags[SI->getValue()]) + return false; + } + return true; +} + +bool Multilib::operator==(const Multilib &Other) const { + // Check whether the flags sets match + // allowing for the match to be order invariant + llvm::StringSet<> MyFlags; + for (const auto &Flag : Flags) + MyFlags.insert(Flag); + + for (const auto &Flag : Other.Flags) + if (MyFlags.find(Flag) == MyFlags.end()) + return false; + + if (osSuffix() != Other.osSuffix()) + return false; + + if (gccSuffix() != Other.gccSuffix()) + return false; + + if (includeSuffix() != Other.includeSuffix()) + return false; + + return true; +} + +raw_ostream &clang::driver::operator<<(raw_ostream &OS, const Multilib &M) { + M.print(OS); + return OS; +} + +MultilibSet &MultilibSet::Maybe(const Multilib &M) { + Multilib Opposite; + // Negate any '+' flags + for (StringRef Flag : M.flags()) { + if (Flag.front() == '+') + Opposite.flags().push_back(("-" + Flag.substr(1)).str()); + } + return Either(M, Opposite); +} + +MultilibSet &MultilibSet::Either(const Multilib &M1, const Multilib &M2) { + return Either({M1, M2}); +} + +MultilibSet &MultilibSet::Either(const Multilib &M1, const Multilib &M2, + const Multilib &M3) { + return Either({M1, M2, M3}); +} + +MultilibSet &MultilibSet::Either(const Multilib &M1, const Multilib &M2, + const Multilib &M3, const Multilib &M4) { + return Either({M1, M2, M3, M4}); +} + +MultilibSet &MultilibSet::Either(const Multilib &M1, const Multilib &M2, + const Multilib &M3, const Multilib &M4, + const Multilib &M5) { + return Either({M1, M2, M3, M4, M5}); +} + +static Multilib compose(const Multilib &Base, const Multilib &New) { + SmallString<128> GCCSuffix; + llvm::sys::path::append(GCCSuffix, "/", Base.gccSuffix(), New.gccSuffix()); + SmallString<128> OSSuffix; + llvm::sys::path::append(OSSuffix, "/", Base.osSuffix(), New.osSuffix()); + SmallString<128> IncludeSuffix; + llvm::sys::path::append(IncludeSuffix, "/", Base.includeSuffix(), + New.includeSuffix()); + + Multilib Composed(GCCSuffix, OSSuffix, IncludeSuffix); + + Multilib::flags_list &Flags = Composed.flags(); + + Flags.insert(Flags.end(), Base.flags().begin(), Base.flags().end()); + Flags.insert(Flags.end(), New.flags().begin(), New.flags().end()); + + return Composed; +} + +MultilibSet &MultilibSet::Either(ArrayRef<Multilib> MultilibSegments) { + multilib_list Composed; + + if (Multilibs.empty()) + Multilibs.insert(Multilibs.end(), MultilibSegments.begin(), + MultilibSegments.end()); + else { + for (const Multilib &New : MultilibSegments) { + for (const Multilib &Base : *this) { + Multilib MO = compose(Base, New); + if (MO.isValid()) + Composed.push_back(MO); + } + } + + Multilibs = Composed; + } + + return *this; +} + +MultilibSet &MultilibSet::FilterOut(FilterCallback F) { + filterInPlace(F, Multilibs); + return *this; +} + +MultilibSet &MultilibSet::FilterOut(const char *Regex) { + llvm::Regex R(Regex); +#ifndef NDEBUG + std::string Error; + if (!R.isValid(Error)) { + llvm::errs() << Error; + llvm_unreachable("Invalid regex!"); + } +#endif + + filterInPlace([&R](const Multilib &M) { return R.match(M.gccSuffix()); }, + Multilibs); + return *this; +} + +void MultilibSet::push_back(const Multilib &M) { Multilibs.push_back(M); } + +void MultilibSet::combineWith(const MultilibSet &Other) { + Multilibs.insert(Multilibs.end(), Other.begin(), Other.end()); +} + +static bool isFlagEnabled(StringRef Flag) { + char Indicator = Flag.front(); + assert(Indicator == '+' || Indicator == '-'); + return Indicator == '+'; +} + +bool MultilibSet::select(const Multilib::flags_list &Flags, Multilib &M) const { + llvm::StringMap<bool> FlagSet; + + // Stuff all of the flags into the FlagSet such that a true mappend indicates + // the flag was enabled, and a false mappend indicates the flag was disabled. + for (StringRef Flag : Flags) + FlagSet[Flag.substr(1)] = isFlagEnabled(Flag); + + multilib_list Filtered = filterCopy([&FlagSet](const Multilib &M) { + for (StringRef Flag : M.flags()) { + llvm::StringMap<bool>::const_iterator SI = FlagSet.find(Flag.substr(1)); + if (SI != FlagSet.end()) + if (SI->getValue() != isFlagEnabled(Flag)) + return true; + } + return false; + }, Multilibs); + + if (Filtered.size() == 0) + return false; + if (Filtered.size() == 1) { + M = Filtered[0]; + return true; + } + + // TODO: pick the "best" multlib when more than one is suitable + assert(false); + return false; +} + +void MultilibSet::print(raw_ostream &OS) const { + for (const Multilib &M : *this) + OS << M << "\n"; +} + +MultilibSet::multilib_list MultilibSet::filterCopy(FilterCallback F, + const multilib_list &Ms) { + multilib_list Copy(Ms); + filterInPlace(F, Copy); + return Copy; +} + +void MultilibSet::filterInPlace(FilterCallback F, multilib_list &Ms) { + Ms.erase(std::remove_if(Ms.begin(), Ms.end(), F), Ms.end()); +} + +raw_ostream &clang::driver::operator<<(raw_ostream &OS, const MultilibSet &MS) { + MS.print(OS); + return OS; +} diff --git a/contrib/llvm/tools/clang/lib/Driver/Phases.cpp b/contrib/llvm/tools/clang/lib/Driver/Phases.cpp new file mode 100644 index 0000000..7ae2708 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/Phases.cpp @@ -0,0 +1,27 @@ +//===--- Phases.cpp - Transformations on Driver Types ---------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "clang/Driver/Phases.h" +#include "llvm/Support/ErrorHandling.h" +#include <cassert> + +using namespace clang::driver; + +const char *phases::getPhaseName(ID Id) { + switch (Id) { + case Preprocess: return "preprocessor"; + case Precompile: return "precompiler"; + case Compile: return "compiler"; + case Backend: return "backend"; + case Assemble: return "assembler"; + case Link: return "linker"; + } + + llvm_unreachable("Invalid phase id."); +} diff --git a/contrib/llvm/tools/clang/lib/Driver/SanitizerArgs.cpp b/contrib/llvm/tools/clang/lib/Driver/SanitizerArgs.cpp new file mode 100644 index 0000000..2fded1c --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/SanitizerArgs.cpp @@ -0,0 +1,730 @@ +//===--- SanitizerArgs.cpp - Arguments for sanitizer tools ---------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +#include "clang/Driver/SanitizerArgs.h" +#include "Tools.h" +#include "clang/Basic/Sanitizers.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Options.h" +#include "clang/Driver/ToolChain.h" +#include "llvm/ADT/StringExtras.h" +#include "llvm/ADT/StringSwitch.h" +#include "llvm/Support/FileSystem.h" +#include "llvm/Support/Path.h" +#include "llvm/Support/SpecialCaseList.h" +#include <memory> + +using namespace clang; +using namespace clang::SanitizerKind; +using namespace clang::driver; +using namespace llvm::opt; + +enum : SanitizerMask { + NeedsUbsanRt = Undefined | Integer | CFI, + NeedsUbsanCxxRt = Vptr | CFI, + NotAllowedWithTrap = Vptr, + RequiresPIE = DataFlow, + NeedsUnwindTables = Address | Thread | Memory | DataFlow, + SupportsCoverage = Address | Memory | Leak | Undefined | Integer | DataFlow, + RecoverableByDefault = Undefined | Integer, + Unrecoverable = Unreachable | Return, + LegacyFsanitizeRecoverMask = Undefined | Integer, + NeedsLTO = CFI, + TrappingSupported = + (Undefined & ~Vptr) | UnsignedIntegerOverflow | LocalBounds | CFI, + TrappingDefault = CFI, +}; + +enum CoverageFeature { + CoverageFunc = 1 << 0, + CoverageBB = 1 << 1, + CoverageEdge = 1 << 2, + CoverageIndirCall = 1 << 3, + CoverageTraceBB = 1 << 4, + CoverageTraceCmp = 1 << 5, + Coverage8bitCounters = 1 << 6, +}; + +/// Parse a -fsanitize= or -fno-sanitize= argument's values, diagnosing any +/// invalid components. Returns a SanitizerMask. +static SanitizerMask parseArgValues(const Driver &D, const llvm::opt::Arg *A, + bool DiagnoseErrors); + +/// Parse -f(no-)?sanitize-coverage= flag values, diagnosing any invalid +/// components. Returns OR of members of \c CoverageFeature enumeration. +static int parseCoverageFeatures(const Driver &D, const llvm::opt::Arg *A); + +/// Produce an argument string from ArgList \p Args, which shows how it +/// provides some sanitizer kind from \p Mask. For example, the argument list +/// "-fsanitize=thread,vptr -fsanitize=address" with mask \c NeedsUbsanRt +/// would produce "-fsanitize=vptr". +static std::string lastArgumentForMask(const Driver &D, + const llvm::opt::ArgList &Args, + SanitizerMask Mask); + +/// Produce an argument string from argument \p A, which shows how it provides +/// a value in \p Mask. For instance, the argument +/// "-fsanitize=address,alignment" with mask \c NeedsUbsanRt would produce +/// "-fsanitize=alignment". +static std::string describeSanitizeArg(const llvm::opt::Arg *A, + SanitizerMask Mask); + +/// Produce a string containing comma-separated names of sanitizers in \p +/// Sanitizers set. +static std::string toString(const clang::SanitizerSet &Sanitizers); + +static bool getDefaultBlacklist(const Driver &D, SanitizerMask Kinds, + std::string &BLPath) { + const char *BlacklistFile = nullptr; + if (Kinds & Address) + BlacklistFile = "asan_blacklist.txt"; + else if (Kinds & Memory) + BlacklistFile = "msan_blacklist.txt"; + else if (Kinds & Thread) + BlacklistFile = "tsan_blacklist.txt"; + else if (Kinds & DataFlow) + BlacklistFile = "dfsan_abilist.txt"; + else if (Kinds & CFI) + BlacklistFile = "cfi_blacklist.txt"; + + if (BlacklistFile) { + clang::SmallString<64> Path(D.ResourceDir); + llvm::sys::path::append(Path, BlacklistFile); + BLPath = Path.str(); + return true; + } + return false; +} + +/// Sets group bits for every group that has at least one representative already +/// enabled in \p Kinds. +static SanitizerMask setGroupBits(SanitizerMask Kinds) { +#define SANITIZER(NAME, ID) +#define SANITIZER_GROUP(NAME, ID, ALIAS) \ + if (Kinds & SanitizerKind::ID) \ + Kinds |= SanitizerKind::ID##Group; +#include "clang/Basic/Sanitizers.def" + return Kinds; +} + +static SanitizerMask parseSanitizeTrapArgs(const Driver &D, + const llvm::opt::ArgList &Args) { + SanitizerMask TrapRemove = 0; // During the loop below, the accumulated set of + // sanitizers disabled by the current sanitizer + // argument or any argument after it. + SanitizerMask TrappingKinds = 0; + SanitizerMask TrappingSupportedWithGroups = setGroupBits(TrappingSupported); + + for (ArgList::const_reverse_iterator I = Args.rbegin(), E = Args.rend(); + I != E; ++I) { + const auto *Arg = *I; + if (Arg->getOption().matches(options::OPT_fsanitize_trap_EQ)) { + Arg->claim(); + SanitizerMask Add = parseArgValues(D, Arg, true); + Add &= ~TrapRemove; + if (SanitizerMask InvalidValues = Add & ~TrappingSupportedWithGroups) { + SanitizerSet S; + S.Mask = InvalidValues; + D.Diag(diag::err_drv_unsupported_option_argument) << "-fsanitize-trap" + << toString(S); + } + TrappingKinds |= expandSanitizerGroups(Add) & ~TrapRemove; + } else if (Arg->getOption().matches(options::OPT_fno_sanitize_trap_EQ)) { + Arg->claim(); + TrapRemove |= expandSanitizerGroups(parseArgValues(D, Arg, true)); + } else if (Arg->getOption().matches( + options::OPT_fsanitize_undefined_trap_on_error)) { + Arg->claim(); + TrappingKinds |= + expandSanitizerGroups(UndefinedGroup & ~TrapRemove) & ~TrapRemove; + } else if (Arg->getOption().matches( + options::OPT_fno_sanitize_undefined_trap_on_error)) { + Arg->claim(); + TrapRemove |= expandSanitizerGroups(UndefinedGroup); + } + } + + // Apply default trapping behavior. + TrappingKinds |= TrappingDefault & ~TrapRemove; + + return TrappingKinds; +} + +bool SanitizerArgs::needsUbsanRt() const { + return (Sanitizers.Mask & NeedsUbsanRt & ~TrapSanitizers.Mask) && + !Sanitizers.has(Address) && + !Sanitizers.has(Memory) && + !Sanitizers.has(Thread) && + !CfiCrossDso; +} + +bool SanitizerArgs::needsCfiRt() const { + return !(Sanitizers.Mask & CFI & ~TrapSanitizers.Mask) && CfiCrossDso; +} + +bool SanitizerArgs::needsCfiDiagRt() const { + return (Sanitizers.Mask & CFI & ~TrapSanitizers.Mask) && CfiCrossDso; +} + +bool SanitizerArgs::requiresPIE() const { + return NeedPIE || (Sanitizers.Mask & RequiresPIE); +} + +bool SanitizerArgs::needsUnwindTables() const { + return Sanitizers.Mask & NeedsUnwindTables; +} + +void SanitizerArgs::clear() { + Sanitizers.clear(); + RecoverableSanitizers.clear(); + TrapSanitizers.clear(); + BlacklistFiles.clear(); + ExtraDeps.clear(); + CoverageFeatures = 0; + MsanTrackOrigins = 0; + MsanUseAfterDtor = false; + NeedPIE = false; + AsanFieldPadding = 0; + AsanSharedRuntime = false; + LinkCXXRuntimes = false; + CfiCrossDso = false; +} + +SanitizerArgs::SanitizerArgs(const ToolChain &TC, + const llvm::opt::ArgList &Args) { + clear(); + SanitizerMask AllRemove = 0; // During the loop below, the accumulated set of + // sanitizers disabled by the current sanitizer + // argument or any argument after it. + SanitizerMask AllAddedKinds = 0; // Mask of all sanitizers ever enabled by + // -fsanitize= flags (directly or via group + // expansion), some of which may be disabled + // later. Used to carefully prune + // unused-argument diagnostics. + SanitizerMask DiagnosedKinds = 0; // All Kinds we have diagnosed up to now. + // Used to deduplicate diagnostics. + SanitizerMask Kinds = 0; + const SanitizerMask Supported = setGroupBits(TC.getSupportedSanitizers()); + ToolChain::RTTIMode RTTIMode = TC.getRTTIMode(); + + const Driver &D = TC.getDriver(); + SanitizerMask TrappingKinds = parseSanitizeTrapArgs(D, Args); + SanitizerMask InvalidTrappingKinds = TrappingKinds & NotAllowedWithTrap; + + for (ArgList::const_reverse_iterator I = Args.rbegin(), E = Args.rend(); + I != E; ++I) { + const auto *Arg = *I; + if (Arg->getOption().matches(options::OPT_fsanitize_EQ)) { + Arg->claim(); + SanitizerMask Add = parseArgValues(D, Arg, true); + AllAddedKinds |= expandSanitizerGroups(Add); + + // Avoid diagnosing any sanitizer which is disabled later. + Add &= ~AllRemove; + // At this point we have not expanded groups, so any unsupported + // sanitizers in Add are those which have been explicitly enabled. + // Diagnose them. + if (SanitizerMask KindsToDiagnose = + Add & InvalidTrappingKinds & ~DiagnosedKinds) { + std::string Desc = describeSanitizeArg(*I, KindsToDiagnose); + D.Diag(diag::err_drv_argument_not_allowed_with) + << Desc << "-fsanitize-trap=undefined"; + DiagnosedKinds |= KindsToDiagnose; + } + Add &= ~InvalidTrappingKinds; + if (SanitizerMask KindsToDiagnose = Add & ~Supported & ~DiagnosedKinds) { + std::string Desc = describeSanitizeArg(*I, KindsToDiagnose); + D.Diag(diag::err_drv_unsupported_opt_for_target) + << Desc << TC.getTriple().str(); + DiagnosedKinds |= KindsToDiagnose; + } + Add &= Supported; + + // Test for -fno-rtti + explicit -fsanitizer=vptr before expanding groups + // so we don't error out if -fno-rtti and -fsanitize=undefined were + // passed. + if (Add & Vptr && + (RTTIMode == ToolChain::RM_DisabledImplicitly || + RTTIMode == ToolChain::RM_DisabledExplicitly)) { + if (RTTIMode == ToolChain::RM_DisabledImplicitly) + // Warn about not having rtti enabled if the vptr sanitizer is + // explicitly enabled + D.Diag(diag::warn_drv_disabling_vptr_no_rtti_default); + else { + const llvm::opt::Arg *NoRTTIArg = TC.getRTTIArg(); + assert(NoRTTIArg && + "RTTI disabled explicitly but we have no argument!"); + D.Diag(diag::err_drv_argument_not_allowed_with) + << "-fsanitize=vptr" << NoRTTIArg->getAsString(Args); + } + + // Take out the Vptr sanitizer from the enabled sanitizers + AllRemove |= Vptr; + } + + Add = expandSanitizerGroups(Add); + // Group expansion may have enabled a sanitizer which is disabled later. + Add &= ~AllRemove; + // Silently discard any unsupported sanitizers implicitly enabled through + // group expansion. + Add &= ~InvalidTrappingKinds; + Add &= Supported; + + Kinds |= Add; + } else if (Arg->getOption().matches(options::OPT_fno_sanitize_EQ)) { + Arg->claim(); + SanitizerMask Remove = parseArgValues(D, Arg, true); + AllRemove |= expandSanitizerGroups(Remove); + } + } + + // We disable the vptr sanitizer if it was enabled by group expansion but RTTI + // is disabled. + if ((Kinds & Vptr) && + (RTTIMode == ToolChain::RM_DisabledImplicitly || + RTTIMode == ToolChain::RM_DisabledExplicitly)) { + Kinds &= ~Vptr; + } + + // Check that LTO is enabled if we need it. + if ((Kinds & NeedsLTO) && !D.isUsingLTO()) { + D.Diag(diag::err_drv_argument_only_allowed_with) + << lastArgumentForMask(D, Args, Kinds & NeedsLTO) << "-flto"; + } + + // Report error if there are non-trapping sanitizers that require + // c++abi-specific parts of UBSan runtime, and they are not provided by the + // toolchain. We don't have a good way to check the latter, so we just + // check if the toolchan supports vptr. + if (~Supported & Vptr) { + SanitizerMask KindsToDiagnose = Kinds & ~TrappingKinds & NeedsUbsanCxxRt; + // The runtime library supports the Microsoft C++ ABI, but only well enough + // for CFI. FIXME: Remove this once we support vptr on Windows. + if (TC.getTriple().isOSWindows()) + KindsToDiagnose &= ~CFI; + if (KindsToDiagnose) { + SanitizerSet S; + S.Mask = KindsToDiagnose; + D.Diag(diag::err_drv_unsupported_opt_for_target) + << ("-fno-sanitize-trap=" + toString(S)) << TC.getTriple().str(); + Kinds &= ~KindsToDiagnose; + } + } + + // Warn about incompatible groups of sanitizers. + std::pair<SanitizerMask, SanitizerMask> IncompatibleGroups[] = { + std::make_pair(Address, Thread), std::make_pair(Address, Memory), + std::make_pair(Thread, Memory), std::make_pair(Leak, Thread), + std::make_pair(Leak, Memory), std::make_pair(KernelAddress, Address), + std::make_pair(KernelAddress, Leak), + std::make_pair(KernelAddress, Thread), + std::make_pair(KernelAddress, Memory)}; + for (auto G : IncompatibleGroups) { + SanitizerMask Group = G.first; + if (Kinds & Group) { + if (SanitizerMask Incompatible = Kinds & G.second) { + D.Diag(clang::diag::err_drv_argument_not_allowed_with) + << lastArgumentForMask(D, Args, Group) + << lastArgumentForMask(D, Args, Incompatible); + Kinds &= ~Incompatible; + } + } + } + // FIXME: Currently -fsanitize=leak is silently ignored in the presence of + // -fsanitize=address. Perhaps it should print an error, or perhaps + // -f(-no)sanitize=leak should change whether leak detection is enabled by + // default in ASan? + + // Parse -f(no-)?sanitize-recover flags. + SanitizerMask RecoverableKinds = RecoverableByDefault; + SanitizerMask DiagnosedUnrecoverableKinds = 0; + for (const auto *Arg : Args) { + const char *DeprecatedReplacement = nullptr; + if (Arg->getOption().matches(options::OPT_fsanitize_recover)) { + DeprecatedReplacement = "-fsanitize-recover=undefined,integer"; + RecoverableKinds |= expandSanitizerGroups(LegacyFsanitizeRecoverMask); + Arg->claim(); + } else if (Arg->getOption().matches(options::OPT_fno_sanitize_recover)) { + DeprecatedReplacement = "-fno-sanitize-recover=undefined,integer"; + RecoverableKinds &= ~expandSanitizerGroups(LegacyFsanitizeRecoverMask); + Arg->claim(); + } else if (Arg->getOption().matches(options::OPT_fsanitize_recover_EQ)) { + SanitizerMask Add = parseArgValues(D, Arg, true); + // Report error if user explicitly tries to recover from unrecoverable + // sanitizer. + if (SanitizerMask KindsToDiagnose = + Add & Unrecoverable & ~DiagnosedUnrecoverableKinds) { + SanitizerSet SetToDiagnose; + SetToDiagnose.Mask |= KindsToDiagnose; + D.Diag(diag::err_drv_unsupported_option_argument) + << Arg->getOption().getName() << toString(SetToDiagnose); + DiagnosedUnrecoverableKinds |= KindsToDiagnose; + } + RecoverableKinds |= expandSanitizerGroups(Add); + Arg->claim(); + } else if (Arg->getOption().matches(options::OPT_fno_sanitize_recover_EQ)) { + RecoverableKinds &= ~expandSanitizerGroups(parseArgValues(D, Arg, true)); + Arg->claim(); + } + if (DeprecatedReplacement) { + D.Diag(diag::warn_drv_deprecated_arg) << Arg->getAsString(Args) + << DeprecatedReplacement; + } + } + RecoverableKinds &= Kinds; + RecoverableKinds &= ~Unrecoverable; + + TrappingKinds &= Kinds; + + // Setup blacklist files. + // Add default blacklist from resource directory. + { + std::string BLPath; + if (getDefaultBlacklist(D, Kinds, BLPath) && llvm::sys::fs::exists(BLPath)) + BlacklistFiles.push_back(BLPath); + } + // Parse -f(no-)sanitize-blacklist options. + for (const auto *Arg : Args) { + if (Arg->getOption().matches(options::OPT_fsanitize_blacklist)) { + Arg->claim(); + std::string BLPath = Arg->getValue(); + if (llvm::sys::fs::exists(BLPath)) { + BlacklistFiles.push_back(BLPath); + ExtraDeps.push_back(BLPath); + } else + D.Diag(clang::diag::err_drv_no_such_file) << BLPath; + + } else if (Arg->getOption().matches(options::OPT_fno_sanitize_blacklist)) { + Arg->claim(); + BlacklistFiles.clear(); + ExtraDeps.clear(); + } + } + // Validate blacklists format. + { + std::string BLError; + std::unique_ptr<llvm::SpecialCaseList> SCL( + llvm::SpecialCaseList::create(BlacklistFiles, BLError)); + if (!SCL.get()) + D.Diag(clang::diag::err_drv_malformed_sanitizer_blacklist) << BLError; + } + + // Parse -f[no-]sanitize-memory-track-origins[=level] options. + if (AllAddedKinds & Memory) { + if (Arg *A = + Args.getLastArg(options::OPT_fsanitize_memory_track_origins_EQ, + options::OPT_fsanitize_memory_track_origins, + options::OPT_fno_sanitize_memory_track_origins)) { + if (A->getOption().matches(options::OPT_fsanitize_memory_track_origins)) { + MsanTrackOrigins = 2; + } else if (A->getOption().matches( + options::OPT_fno_sanitize_memory_track_origins)) { + MsanTrackOrigins = 0; + } else { + StringRef S = A->getValue(); + if (S.getAsInteger(0, MsanTrackOrigins) || MsanTrackOrigins < 0 || + MsanTrackOrigins > 2) { + D.Diag(clang::diag::err_drv_invalid_value) << A->getAsString(Args) << S; + } + } + } + MsanUseAfterDtor = + Args.hasArg(options::OPT_fsanitize_memory_use_after_dtor); + NeedPIE |= !(TC.getTriple().isOSLinux() && + TC.getTriple().getArch() == llvm::Triple::x86_64); + } + + if (AllAddedKinds & CFI) { + CfiCrossDso = Args.hasFlag(options::OPT_fsanitize_cfi_cross_dso, + options::OPT_fno_sanitize_cfi_cross_dso, false); + // Without PIE, external function address may resolve to a PLT record, which + // can not be verified by the target module. + NeedPIE |= CfiCrossDso; + } + + // Parse -f(no-)?sanitize-coverage flags if coverage is supported by the + // enabled sanitizers. + if (AllAddedKinds & SupportsCoverage) { + for (const auto *Arg : Args) { + if (Arg->getOption().matches(options::OPT_fsanitize_coverage)) { + Arg->claim(); + int LegacySanitizeCoverage; + if (Arg->getNumValues() == 1 && + !StringRef(Arg->getValue(0)) + .getAsInteger(0, LegacySanitizeCoverage) && + LegacySanitizeCoverage >= 0 && LegacySanitizeCoverage <= 4) { + // TODO: Add deprecation notice for this form. + switch (LegacySanitizeCoverage) { + case 0: + CoverageFeatures = 0; + break; + case 1: + CoverageFeatures = CoverageFunc; + break; + case 2: + CoverageFeatures = CoverageBB; + break; + case 3: + CoverageFeatures = CoverageEdge; + break; + case 4: + CoverageFeatures = CoverageEdge | CoverageIndirCall; + break; + } + continue; + } + CoverageFeatures |= parseCoverageFeatures(D, Arg); + } else if (Arg->getOption().matches(options::OPT_fno_sanitize_coverage)) { + Arg->claim(); + CoverageFeatures &= ~parseCoverageFeatures(D, Arg); + } + } + } + // Choose at most one coverage type: function, bb, or edge. + if ((CoverageFeatures & CoverageFunc) && (CoverageFeatures & CoverageBB)) + D.Diag(clang::diag::err_drv_argument_not_allowed_with) + << "-fsanitize-coverage=func" + << "-fsanitize-coverage=bb"; + if ((CoverageFeatures & CoverageFunc) && (CoverageFeatures & CoverageEdge)) + D.Diag(clang::diag::err_drv_argument_not_allowed_with) + << "-fsanitize-coverage=func" + << "-fsanitize-coverage=edge"; + if ((CoverageFeatures & CoverageBB) && (CoverageFeatures & CoverageEdge)) + D.Diag(clang::diag::err_drv_argument_not_allowed_with) + << "-fsanitize-coverage=bb" + << "-fsanitize-coverage=edge"; + // Basic block tracing and 8-bit counters require some type of coverage + // enabled. + int CoverageTypes = CoverageFunc | CoverageBB | CoverageEdge; + if ((CoverageFeatures & CoverageTraceBB) && + !(CoverageFeatures & CoverageTypes)) + D.Diag(clang::diag::err_drv_argument_only_allowed_with) + << "-fsanitize-coverage=trace-bb" + << "-fsanitize-coverage=(func|bb|edge)"; + if ((CoverageFeatures & Coverage8bitCounters) && + !(CoverageFeatures & CoverageTypes)) + D.Diag(clang::diag::err_drv_argument_only_allowed_with) + << "-fsanitize-coverage=8bit-counters" + << "-fsanitize-coverage=(func|bb|edge)"; + + if (AllAddedKinds & Address) { + AsanSharedRuntime = + Args.hasArg(options::OPT_shared_libasan) || TC.getTriple().isAndroid(); + NeedPIE |= TC.getTriple().isAndroid(); + if (Arg *A = + Args.getLastArg(options::OPT_fsanitize_address_field_padding)) { + StringRef S = A->getValue(); + // Legal values are 0 and 1, 2, but in future we may add more levels. + if (S.getAsInteger(0, AsanFieldPadding) || AsanFieldPadding < 0 || + AsanFieldPadding > 2) { + D.Diag(clang::diag::err_drv_invalid_value) << A->getAsString(Args) << S; + } + } + + if (Arg *WindowsDebugRTArg = + Args.getLastArg(options::OPT__SLASH_MTd, options::OPT__SLASH_MT, + options::OPT__SLASH_MDd, options::OPT__SLASH_MD, + options::OPT__SLASH_LDd, options::OPT__SLASH_LD)) { + switch (WindowsDebugRTArg->getOption().getID()) { + case options::OPT__SLASH_MTd: + case options::OPT__SLASH_MDd: + case options::OPT__SLASH_LDd: + D.Diag(clang::diag::err_drv_argument_not_allowed_with) + << WindowsDebugRTArg->getAsString(Args) + << lastArgumentForMask(D, Args, Address); + D.Diag(clang::diag::note_drv_address_sanitizer_debug_runtime); + } + } + } + + // Parse -link-cxx-sanitizer flag. + LinkCXXRuntimes = + Args.hasArg(options::OPT_fsanitize_link_cxx_runtime) || D.CCCIsCXX(); + + // Finally, initialize the set of available and recoverable sanitizers. + Sanitizers.Mask |= Kinds; + RecoverableSanitizers.Mask |= RecoverableKinds; + TrapSanitizers.Mask |= TrappingKinds; +} + +static std::string toString(const clang::SanitizerSet &Sanitizers) { + std::string Res; +#define SANITIZER(NAME, ID) \ + if (Sanitizers.has(ID)) { \ + if (!Res.empty()) \ + Res += ","; \ + Res += NAME; \ + } +#include "clang/Basic/Sanitizers.def" + return Res; +} + +void SanitizerArgs::addArgs(const ToolChain &TC, const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs, + types::ID InputType) const { + if (Sanitizers.empty()) + return; + CmdArgs.push_back(Args.MakeArgString("-fsanitize=" + toString(Sanitizers))); + + if (!RecoverableSanitizers.empty()) + CmdArgs.push_back(Args.MakeArgString("-fsanitize-recover=" + + toString(RecoverableSanitizers))); + + if (!TrapSanitizers.empty()) + CmdArgs.push_back( + Args.MakeArgString("-fsanitize-trap=" + toString(TrapSanitizers))); + + for (const auto &BLPath : BlacklistFiles) { + SmallString<64> BlacklistOpt("-fsanitize-blacklist="); + BlacklistOpt += BLPath; + CmdArgs.push_back(Args.MakeArgString(BlacklistOpt)); + } + for (const auto &Dep : ExtraDeps) { + SmallString<64> ExtraDepOpt("-fdepfile-entry="); + ExtraDepOpt += Dep; + CmdArgs.push_back(Args.MakeArgString(ExtraDepOpt)); + } + + if (MsanTrackOrigins) + CmdArgs.push_back(Args.MakeArgString("-fsanitize-memory-track-origins=" + + llvm::utostr(MsanTrackOrigins))); + + if (MsanUseAfterDtor) + CmdArgs.push_back(Args.MakeArgString("-fsanitize-memory-use-after-dtor")); + + if (CfiCrossDso) + CmdArgs.push_back(Args.MakeArgString("-fsanitize-cfi-cross-dso")); + + if (AsanFieldPadding) + CmdArgs.push_back(Args.MakeArgString("-fsanitize-address-field-padding=" + + llvm::utostr(AsanFieldPadding))); + // Translate available CoverageFeatures to corresponding clang-cc1 flags. + std::pair<int, const char *> CoverageFlags[] = { + std::make_pair(CoverageFunc, "-fsanitize-coverage-type=1"), + std::make_pair(CoverageBB, "-fsanitize-coverage-type=2"), + std::make_pair(CoverageEdge, "-fsanitize-coverage-type=3"), + std::make_pair(CoverageIndirCall, "-fsanitize-coverage-indirect-calls"), + std::make_pair(CoverageTraceBB, "-fsanitize-coverage-trace-bb"), + std::make_pair(CoverageTraceCmp, "-fsanitize-coverage-trace-cmp"), + std::make_pair(Coverage8bitCounters, "-fsanitize-coverage-8bit-counters")}; + for (auto F : CoverageFlags) { + if (CoverageFeatures & F.first) + CmdArgs.push_back(Args.MakeArgString(F.second)); + } + + + // MSan: Workaround for PR16386. + // ASan: This is mainly to help LSan with cases such as + // https://code.google.com/p/address-sanitizer/issues/detail?id=373 + // We can't make this conditional on -fsanitize=leak, as that flag shouldn't + // affect compilation. + if (Sanitizers.has(Memory) || Sanitizers.has(Address)) + CmdArgs.push_back(Args.MakeArgString("-fno-assume-sane-operator-new")); + + if (TC.getTriple().isOSWindows() && needsUbsanRt()) { + // Instruct the code generator to embed linker directives in the object file + // that cause the required runtime libraries to be linked. + CmdArgs.push_back(Args.MakeArgString( + "--dependent-lib=" + TC.getCompilerRT(Args, "ubsan_standalone"))); + if (types::isCXX(InputType)) + CmdArgs.push_back(Args.MakeArgString( + "--dependent-lib=" + TC.getCompilerRT(Args, "ubsan_standalone_cxx"))); + } +} + +SanitizerMask parseArgValues(const Driver &D, const llvm::opt::Arg *A, + bool DiagnoseErrors) { + assert((A->getOption().matches(options::OPT_fsanitize_EQ) || + A->getOption().matches(options::OPT_fno_sanitize_EQ) || + A->getOption().matches(options::OPT_fsanitize_recover_EQ) || + A->getOption().matches(options::OPT_fno_sanitize_recover_EQ) || + A->getOption().matches(options::OPT_fsanitize_trap_EQ) || + A->getOption().matches(options::OPT_fno_sanitize_trap_EQ)) && + "Invalid argument in parseArgValues!"); + SanitizerMask Kinds = 0; + for (int i = 0, n = A->getNumValues(); i != n; ++i) { + const char *Value = A->getValue(i); + SanitizerMask Kind; + // Special case: don't accept -fsanitize=all. + if (A->getOption().matches(options::OPT_fsanitize_EQ) && + 0 == strcmp("all", Value)) + Kind = 0; + else + Kind = parseSanitizerValue(Value, /*AllowGroups=*/true); + + if (Kind) + Kinds |= Kind; + else if (DiagnoseErrors) + D.Diag(clang::diag::err_drv_unsupported_option_argument) + << A->getOption().getName() << Value; + } + return Kinds; +} + +int parseCoverageFeatures(const Driver &D, const llvm::opt::Arg *A) { + assert(A->getOption().matches(options::OPT_fsanitize_coverage) || + A->getOption().matches(options::OPT_fno_sanitize_coverage)); + int Features = 0; + for (int i = 0, n = A->getNumValues(); i != n; ++i) { + const char *Value = A->getValue(i); + int F = llvm::StringSwitch<int>(Value) + .Case("func", CoverageFunc) + .Case("bb", CoverageBB) + .Case("edge", CoverageEdge) + .Case("indirect-calls", CoverageIndirCall) + .Case("trace-bb", CoverageTraceBB) + .Case("trace-cmp", CoverageTraceCmp) + .Case("8bit-counters", Coverage8bitCounters) + .Default(0); + if (F == 0) + D.Diag(clang::diag::err_drv_unsupported_option_argument) + << A->getOption().getName() << Value; + Features |= F; + } + return Features; +} + +std::string lastArgumentForMask(const Driver &D, const llvm::opt::ArgList &Args, + SanitizerMask Mask) { + for (llvm::opt::ArgList::const_reverse_iterator I = Args.rbegin(), + E = Args.rend(); + I != E; ++I) { + const auto *Arg = *I; + if (Arg->getOption().matches(options::OPT_fsanitize_EQ)) { + SanitizerMask AddKinds = + expandSanitizerGroups(parseArgValues(D, Arg, false)); + if (AddKinds & Mask) + return describeSanitizeArg(Arg, Mask); + } else if (Arg->getOption().matches(options::OPT_fno_sanitize_EQ)) { + SanitizerMask RemoveKinds = + expandSanitizerGroups(parseArgValues(D, Arg, false)); + Mask &= ~RemoveKinds; + } + } + llvm_unreachable("arg list didn't provide expected value"); +} + +std::string describeSanitizeArg(const llvm::opt::Arg *A, SanitizerMask Mask) { + assert(A->getOption().matches(options::OPT_fsanitize_EQ) + && "Invalid argument in describeSanitizerArg!"); + + std::string Sanitizers; + for (int i = 0, n = A->getNumValues(); i != n; ++i) { + if (expandSanitizerGroups( + parseSanitizerValue(A->getValue(i), /*AllowGroups=*/true)) & + Mask) { + if (!Sanitizers.empty()) + Sanitizers += ","; + Sanitizers += A->getValue(i); + } + } + + assert(!Sanitizers.empty() && "arg didn't provide expected value"); + return "-fsanitize=" + Sanitizers; +} diff --git a/contrib/llvm/tools/clang/lib/Driver/Tool.cpp b/contrib/llvm/tools/clang/lib/Driver/Tool.cpp new file mode 100644 index 0000000..7142e82 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/Tool.cpp @@ -0,0 +1,23 @@ +//===--- Tool.cpp - Compilation Tools -------------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "clang/Driver/Tool.h" + +using namespace clang::driver; + +Tool::Tool(const char *_Name, const char *_ShortName, const ToolChain &TC, + ResponseFileSupport _ResponseSupport, + llvm::sys::WindowsEncodingMethod _ResponseEncoding, + const char *_ResponseFlag) + : Name(_Name), ShortName(_ShortName), TheToolChain(TC), + ResponseSupport(_ResponseSupport), ResponseEncoding(_ResponseEncoding), + ResponseFlag(_ResponseFlag) {} + +Tool::~Tool() { +} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChain.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChain.cpp new file mode 100644 index 0000000..e30177c --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChain.cpp @@ -0,0 +1,674 @@ +//===--- ToolChain.cpp - Collections of tools for one platform ------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "Tools.h" +#include "clang/Basic/ObjCRuntime.h" +#include "clang/Driver/Action.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/Options.h" +#include "clang/Driver/SanitizerArgs.h" +#include "clang/Driver/ToolChain.h" +#include "llvm/ADT/SmallString.h" +#include "llvm/ADT/StringSwitch.h" +#include "llvm/Option/Arg.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Option/Option.h" +#include "llvm/Support/ErrorHandling.h" +#include "llvm/Support/FileSystem.h" +#include "llvm/Support/TargetRegistry.h" +#include "llvm/Support/TargetParser.h" + +using namespace clang::driver; +using namespace clang::driver::tools; +using namespace clang; +using namespace llvm; +using namespace llvm::opt; + +static llvm::opt::Arg *GetRTTIArgument(const ArgList &Args) { + return Args.getLastArg(options::OPT_mkernel, options::OPT_fapple_kext, + options::OPT_fno_rtti, options::OPT_frtti); +} + +static ToolChain::RTTIMode CalculateRTTIMode(const ArgList &Args, + const llvm::Triple &Triple, + const Arg *CachedRTTIArg) { + // Explicit rtti/no-rtti args + if (CachedRTTIArg) { + if (CachedRTTIArg->getOption().matches(options::OPT_frtti)) + return ToolChain::RM_EnabledExplicitly; + else + return ToolChain::RM_DisabledExplicitly; + } + + // -frtti is default, except for the PS4 CPU. + if (!Triple.isPS4CPU()) + return ToolChain::RM_EnabledImplicitly; + + // On the PS4, turning on c++ exceptions turns on rtti. + // We're assuming that, if we see -fexceptions, rtti gets turned on. + Arg *Exceptions = Args.getLastArgNoClaim( + options::OPT_fcxx_exceptions, options::OPT_fno_cxx_exceptions, + options::OPT_fexceptions, options::OPT_fno_exceptions); + if (Exceptions && + (Exceptions->getOption().matches(options::OPT_fexceptions) || + Exceptions->getOption().matches(options::OPT_fcxx_exceptions))) + return ToolChain::RM_EnabledImplicitly; + + return ToolChain::RM_DisabledImplicitly; +} + +ToolChain::ToolChain(const Driver &D, const llvm::Triple &T, + const ArgList &Args) + : D(D), Triple(T), Args(Args), CachedRTTIArg(GetRTTIArgument(Args)), + CachedRTTIMode(CalculateRTTIMode(Args, Triple, CachedRTTIArg)) { + if (Arg *A = Args.getLastArg(options::OPT_mthread_model)) + if (!isThreadModelSupported(A->getValue())) + D.Diag(diag::err_drv_invalid_thread_model_for_target) + << A->getValue() << A->getAsString(Args); +} + +ToolChain::~ToolChain() { +} + +vfs::FileSystem &ToolChain::getVFS() const { return getDriver().getVFS(); } + +bool ToolChain::useIntegratedAs() const { + return Args.hasFlag(options::OPT_fintegrated_as, + options::OPT_fno_integrated_as, + IsIntegratedAssemblerDefault()); +} + +const SanitizerArgs& ToolChain::getSanitizerArgs() const { + if (!SanitizerArguments.get()) + SanitizerArguments.reset(new SanitizerArgs(*this, Args)); + return *SanitizerArguments.get(); +} + +namespace { +struct DriverSuffix { + const char *Suffix; + const char *ModeFlag; +}; + +const DriverSuffix *FindDriverSuffix(StringRef ProgName) { + // A list of known driver suffixes. Suffixes are compared against the + // program name in order. If there is a match, the frontend type is updated as + // necessary by applying the ModeFlag. + static const DriverSuffix DriverSuffixes[] = { + {"clang", nullptr}, + {"clang++", "--driver-mode=g++"}, + {"clang-c++", "--driver-mode=g++"}, +#ifdef __FreeBSD__ + {"clang-CC", "--driver-mode=g++"}, +#endif + {"clang-cc", nullptr}, + {"clang-cpp", "--driver-mode=cpp"}, + {"clang-g++", "--driver-mode=g++"}, + {"clang-gcc", nullptr}, + {"clang-cl", "--driver-mode=cl"}, +#ifdef __FreeBSD__ + {"CC", "--driver-mode=g++"}, +#endif + {"cc", nullptr}, + {"cpp", "--driver-mode=cpp"}, + {"cl", "--driver-mode=cl"}, + {"++", "--driver-mode=g++"}, + }; + + for (size_t i = 0; i < llvm::array_lengthof(DriverSuffixes); ++i) + if (ProgName.endswith(DriverSuffixes[i].Suffix)) + return &DriverSuffixes[i]; + return nullptr; +} + +/// Normalize the program name from argv[0] by stripping the file extension if +/// present and lower-casing the string on Windows. +std::string normalizeProgramName(llvm::StringRef Argv0) { + std::string ProgName = llvm::sys::path::stem(Argv0); +#ifdef LLVM_ON_WIN32 + // Transform to lowercase for case insensitive file systems. + std::transform(ProgName.begin(), ProgName.end(), ProgName.begin(), ::tolower); +#endif + return ProgName; +} + +const DriverSuffix *parseDriverSuffix(StringRef ProgName) { + // Try to infer frontend type and default target from the program name by + // comparing it against DriverSuffixes in order. + + // If there is a match, the function tries to identify a target as prefix. + // E.g. "x86_64-linux-clang" as interpreted as suffix "clang" with target + // prefix "x86_64-linux". If such a target prefix is found, it may be + // added via -target as implicit first argument. + const DriverSuffix *DS = FindDriverSuffix(ProgName); + + if (!DS) { + // Try again after stripping any trailing version number: + // clang++3.5 -> clang++ + ProgName = ProgName.rtrim("0123456789."); + DS = FindDriverSuffix(ProgName); + } + + if (!DS) { + // Try again after stripping trailing -component. + // clang++-tot -> clang++ + ProgName = ProgName.slice(0, ProgName.rfind('-')); + DS = FindDriverSuffix(ProgName); + } + return DS; +} +} // anonymous namespace + +std::pair<std::string, std::string> +ToolChain::getTargetAndModeFromProgramName(StringRef PN) { + std::string ProgName = normalizeProgramName(PN); + const DriverSuffix *DS = parseDriverSuffix(ProgName); + if (!DS) + return std::make_pair("", ""); + std::string ModeFlag = DS->ModeFlag == nullptr ? "" : DS->ModeFlag; + + std::string::size_type LastComponent = + ProgName.rfind('-', ProgName.size() - strlen(DS->Suffix)); + if (LastComponent == std::string::npos) + return std::make_pair("", ModeFlag); + + // Infer target from the prefix. + StringRef Prefix(ProgName); + Prefix = Prefix.slice(0, LastComponent); + std::string IgnoredError; + std::string Target; + if (llvm::TargetRegistry::lookupTarget(Prefix, IgnoredError)) { + Target = Prefix; + } + return std::make_pair(Target, ModeFlag); +} + +StringRef ToolChain::getDefaultUniversalArchName() const { + // In universal driver terms, the arch name accepted by -arch isn't exactly + // the same as the ones that appear in the triple. Roughly speaking, this is + // an inverse of the darwin::getArchTypeForDarwinArchName() function, but the + // only interesting special case is powerpc. + switch (Triple.getArch()) { + case llvm::Triple::ppc: + return "ppc"; + case llvm::Triple::ppc64: + return "ppc64"; + case llvm::Triple::ppc64le: + return "ppc64le"; + default: + return Triple.getArchName(); + } +} + +bool ToolChain::IsUnwindTablesDefault() const { + return false; +} + +Tool *ToolChain::getClang() const { + if (!Clang) + Clang.reset(new tools::Clang(*this)); + return Clang.get(); +} + +Tool *ToolChain::buildAssembler() const { + return new tools::ClangAs(*this); +} + +Tool *ToolChain::buildLinker() const { + llvm_unreachable("Linking is not supported by this toolchain"); +} + +Tool *ToolChain::getAssemble() const { + if (!Assemble) + Assemble.reset(buildAssembler()); + return Assemble.get(); +} + +Tool *ToolChain::getClangAs() const { + if (!Assemble) + Assemble.reset(new tools::ClangAs(*this)); + return Assemble.get(); +} + +Tool *ToolChain::getLink() const { + if (!Link) + Link.reset(buildLinker()); + return Link.get(); +} + +Tool *ToolChain::getTool(Action::ActionClass AC) const { + switch (AC) { + case Action::AssembleJobClass: + return getAssemble(); + + case Action::LinkJobClass: + return getLink(); + + case Action::InputClass: + case Action::BindArchClass: + case Action::CudaDeviceClass: + case Action::CudaHostClass: + case Action::LipoJobClass: + case Action::DsymutilJobClass: + case Action::VerifyDebugInfoJobClass: + llvm_unreachable("Invalid tool kind."); + + case Action::CompileJobClass: + case Action::PrecompileJobClass: + case Action::PreprocessJobClass: + case Action::AnalyzeJobClass: + case Action::MigrateJobClass: + case Action::VerifyPCHJobClass: + case Action::BackendJobClass: + return getClang(); + } + + llvm_unreachable("Invalid tool kind."); +} + +static StringRef getArchNameForCompilerRTLib(const ToolChain &TC, + const ArgList &Args) { + const llvm::Triple &Triple = TC.getTriple(); + bool IsWindows = Triple.isOSWindows(); + + if (Triple.isWindowsMSVCEnvironment() && TC.getArch() == llvm::Triple::x86) + return "i386"; + + if (TC.getArch() == llvm::Triple::arm || TC.getArch() == llvm::Triple::armeb) + return (arm::getARMFloatABI(TC, Args) == arm::FloatABI::Hard && !IsWindows) + ? "armhf" + : "arm"; + + return TC.getArchName(); +} + +std::string ToolChain::getCompilerRT(const ArgList &Args, StringRef Component, + bool Shared) const { + const llvm::Triple &TT = getTriple(); + const char *Env = TT.isAndroid() ? "-android" : ""; + bool IsITANMSVCWindows = + TT.isWindowsMSVCEnvironment() || TT.isWindowsItaniumEnvironment(); + + StringRef Arch = getArchNameForCompilerRTLib(*this, Args); + const char *Prefix = IsITANMSVCWindows ? "" : "lib"; + const char *Suffix = Shared ? (Triple.isOSWindows() ? ".dll" : ".so") + : (IsITANMSVCWindows ? ".lib" : ".a"); + + SmallString<128> Path(getDriver().ResourceDir); + StringRef OSLibName = Triple.isOSFreeBSD() ? "freebsd" : getOS(); + llvm::sys::path::append(Path, "lib", OSLibName); + llvm::sys::path::append(Path, Prefix + Twine("clang_rt.") + Component + "-" + + Arch + Env + Suffix); + return Path.str(); +} + +const char *ToolChain::getCompilerRTArgString(const llvm::opt::ArgList &Args, + StringRef Component, + bool Shared) const { + return Args.MakeArgString(getCompilerRT(Args, Component, Shared)); +} + +bool ToolChain::needsProfileRT(const ArgList &Args) { + if (Args.hasFlag(options::OPT_fprofile_arcs, options::OPT_fno_profile_arcs, + false) || + Args.hasArg(options::OPT_fprofile_generate) || + Args.hasArg(options::OPT_fprofile_generate_EQ) || + Args.hasArg(options::OPT_fprofile_instr_generate) || + Args.hasArg(options::OPT_fprofile_instr_generate_EQ) || + Args.hasArg(options::OPT_fcreate_profile) || + Args.hasArg(options::OPT_coverage)) + return true; + + return false; +} + +Tool *ToolChain::SelectTool(const JobAction &JA) const { + if (getDriver().ShouldUseClangCompiler(JA)) return getClang(); + Action::ActionClass AC = JA.getKind(); + if (AC == Action::AssembleJobClass && useIntegratedAs()) + return getClangAs(); + return getTool(AC); +} + +std::string ToolChain::GetFilePath(const char *Name) const { + return D.GetFilePath(Name, *this); +} + +std::string ToolChain::GetProgramPath(const char *Name) const { + return D.GetProgramPath(Name, *this); +} + +std::string ToolChain::GetLinkerPath() const { + if (Arg *A = Args.getLastArg(options::OPT_fuse_ld_EQ)) { + StringRef Suffix = A->getValue(); + + // If we're passed -fuse-ld= with no argument, or with the argument ld, + // then use whatever the default system linker is. + if (Suffix.empty() || Suffix == "ld") + return GetProgramPath("ld"); + + llvm::SmallString<8> LinkerName("ld."); + LinkerName.append(Suffix); + + std::string LinkerPath(GetProgramPath(LinkerName.c_str())); + if (llvm::sys::fs::exists(LinkerPath)) + return LinkerPath; + + getDriver().Diag(diag::err_drv_invalid_linker_name) << A->getAsString(Args); + return ""; + } + + return GetProgramPath(DefaultLinker); +} + +types::ID ToolChain::LookupTypeForExtension(const char *Ext) const { + return types::lookupTypeForExtension(Ext); +} + +bool ToolChain::HasNativeLLVMSupport() const { + return false; +} + +bool ToolChain::isCrossCompiling() const { + llvm::Triple HostTriple(LLVM_HOST_TRIPLE); + switch (HostTriple.getArch()) { + // The A32/T32/T16 instruction sets are not separate architectures in this + // context. + case llvm::Triple::arm: + case llvm::Triple::armeb: + case llvm::Triple::thumb: + case llvm::Triple::thumbeb: + return getArch() != llvm::Triple::arm && getArch() != llvm::Triple::thumb && + getArch() != llvm::Triple::armeb && getArch() != llvm::Triple::thumbeb; + default: + return HostTriple.getArch() != getArch(); + } +} + +ObjCRuntime ToolChain::getDefaultObjCRuntime(bool isNonFragile) const { + return ObjCRuntime(isNonFragile ? ObjCRuntime::GNUstep : ObjCRuntime::GCC, + VersionTuple()); +} + +bool ToolChain::isThreadModelSupported(const StringRef Model) const { + if (Model == "single") { + // FIXME: 'single' is only supported on ARM and WebAssembly so far. + return Triple.getArch() == llvm::Triple::arm || + Triple.getArch() == llvm::Triple::armeb || + Triple.getArch() == llvm::Triple::thumb || + Triple.getArch() == llvm::Triple::thumbeb || + Triple.getArch() == llvm::Triple::wasm32 || + Triple.getArch() == llvm::Triple::wasm64; + } else if (Model == "posix") + return true; + + return false; +} + +std::string ToolChain::ComputeLLVMTriple(const ArgList &Args, + types::ID InputType) const { + switch (getTriple().getArch()) { + default: + return getTripleString(); + + case llvm::Triple::x86_64: { + llvm::Triple Triple = getTriple(); + if (!Triple.isOSBinFormatMachO()) + return getTripleString(); + + if (Arg *A = Args.getLastArg(options::OPT_march_EQ)) { + // x86_64h goes in the triple. Other -march options just use the + // vanilla triple we already have. + StringRef MArch = A->getValue(); + if (MArch == "x86_64h") + Triple.setArchName(MArch); + } + return Triple.getTriple(); + } + case llvm::Triple::aarch64: { + llvm::Triple Triple = getTriple(); + if (!Triple.isOSBinFormatMachO()) + return getTripleString(); + + // FIXME: older versions of ld64 expect the "arm64" component in the actual + // triple string and query it to determine whether an LTO file can be + // handled. Remove this when we don't care any more. + Triple.setArchName("arm64"); + return Triple.getTriple(); + } + case llvm::Triple::arm: + case llvm::Triple::armeb: + case llvm::Triple::thumb: + case llvm::Triple::thumbeb: { + // FIXME: Factor into subclasses. + llvm::Triple Triple = getTriple(); + bool IsBigEndian = getTriple().getArch() == llvm::Triple::armeb || + getTriple().getArch() == llvm::Triple::thumbeb; + + // Handle pseudo-target flags '-mlittle-endian'/'-EL' and + // '-mbig-endian'/'-EB'. + if (Arg *A = Args.getLastArg(options::OPT_mlittle_endian, + options::OPT_mbig_endian)) { + IsBigEndian = !A->getOption().matches(options::OPT_mlittle_endian); + } + + // Thumb2 is the default for V7 on Darwin. + // + // FIXME: Thumb should just be another -target-feaure, not in the triple. + StringRef MCPU, MArch; + if (const Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) + MCPU = A->getValue(); + if (const Arg *A = Args.getLastArg(options::OPT_march_EQ)) + MArch = A->getValue(); + std::string CPU = + Triple.isOSBinFormatMachO() + ? tools::arm::getARMCPUForMArch(MArch, Triple).str() + : tools::arm::getARMTargetCPU(MCPU, MArch, Triple); + StringRef Suffix = + tools::arm::getLLVMArchSuffixForARM(CPU, MArch, Triple); + bool IsMProfile = ARM::parseArchProfile(Suffix) == ARM::PK_M; + bool ThumbDefault = IsMProfile || (ARM::parseArchVersion(Suffix) == 7 && + getTriple().isOSBinFormatMachO()); + // FIXME: this is invalid for WindowsCE + if (getTriple().isOSWindows()) + ThumbDefault = true; + std::string ArchName; + if (IsBigEndian) + ArchName = "armeb"; + else + ArchName = "arm"; + + // Assembly files should start in ARM mode, unless arch is M-profile. + if ((InputType != types::TY_PP_Asm && Args.hasFlag(options::OPT_mthumb, + options::OPT_mno_thumb, ThumbDefault)) || IsMProfile) { + if (IsBigEndian) + ArchName = "thumbeb"; + else + ArchName = "thumb"; + } + Triple.setArchName(ArchName + Suffix.str()); + + return Triple.getTriple(); + } + } +} + +std::string ToolChain::ComputeEffectiveClangTriple(const ArgList &Args, + types::ID InputType) const { + return ComputeLLVMTriple(Args, InputType); +} + +void ToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + // Each toolchain should provide the appropriate include flags. +} + +void ToolChain::addClangTargetOptions(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { +} + +void ToolChain::addClangWarningOptions(ArgStringList &CC1Args) const {} + +void ToolChain::addProfileRTLibs(const llvm::opt::ArgList &Args, + llvm::opt::ArgStringList &CmdArgs) const { + if (!needsProfileRT(Args)) return; + + CmdArgs.push_back(getCompilerRTArgString(Args, "profile")); + return; +} + +ToolChain::RuntimeLibType ToolChain::GetRuntimeLibType( + const ArgList &Args) const { + if (Arg *A = Args.getLastArg(options::OPT_rtlib_EQ)) { + StringRef Value = A->getValue(); + if (Value == "compiler-rt") + return ToolChain::RLT_CompilerRT; + if (Value == "libgcc") + return ToolChain::RLT_Libgcc; + getDriver().Diag(diag::err_drv_invalid_rtlib_name) + << A->getAsString(Args); + } + + return GetDefaultRuntimeLibType(); +} + +ToolChain::CXXStdlibType ToolChain::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; + if (Value == "libstdc++") + return ToolChain::CST_Libstdcxx; + getDriver().Diag(diag::err_drv_invalid_stdlib_name) + << A->getAsString(Args); + } + + return ToolChain::CST_Libstdcxx; +} + +/// \brief Utility function to add a system include directory to CC1 arguments. +/*static*/ void ToolChain::addSystemInclude(const ArgList &DriverArgs, + ArgStringList &CC1Args, + const Twine &Path) { + CC1Args.push_back("-internal-isystem"); + CC1Args.push_back(DriverArgs.MakeArgString(Path)); +} + +/// \brief Utility function to add a system include directory with extern "C" +/// semantics to CC1 arguments. +/// +/// Note that this should be used rarely, and only for directories that +/// historically and for legacy reasons are treated as having implicit extern +/// "C" semantics. These semantics are *ignored* by and large today, but its +/// important to preserve the preprocessor changes resulting from the +/// classification. +/*static*/ void ToolChain::addExternCSystemInclude(const ArgList &DriverArgs, + ArgStringList &CC1Args, + const Twine &Path) { + CC1Args.push_back("-internal-externc-isystem"); + CC1Args.push_back(DriverArgs.MakeArgString(Path)); +} + +void ToolChain::addExternCSystemIncludeIfExists(const ArgList &DriverArgs, + ArgStringList &CC1Args, + const Twine &Path) { + if (llvm::sys::fs::exists(Path)) + addExternCSystemInclude(DriverArgs, CC1Args, Path); +} + +/// \brief Utility function to add a list of system include directories to CC1. +/*static*/ void ToolChain::addSystemIncludes(const ArgList &DriverArgs, + ArgStringList &CC1Args, + ArrayRef<StringRef> Paths) { + for (StringRef Path : Paths) { + CC1Args.push_back("-internal-isystem"); + CC1Args.push_back(DriverArgs.MakeArgString(Path)); + } +} + +void ToolChain::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + // Header search paths should be handled by each of the subclasses. + // Historically, they have not been, and instead have been handled inside of + // the CC1-layer frontend. As the logic is hoisted out, this generic function + // will slowly stop being called. + // + // While it is being called, replicate a bit of a hack to propagate the + // '-stdlib=' flag down to CC1 so that it can in turn customize the C++ + // header search paths with it. Once all systems are overriding this + // function, the CC1 flag and this line can be removed. + DriverArgs.AddAllArgs(CC1Args, options::OPT_stdlib_EQ); +} + +void ToolChain::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: + CmdArgs.push_back("-lstdc++"); + break; + } +} + +void ToolChain::AddFilePathLibArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + for (const auto &LibPath : getFilePaths()) + if(LibPath.length() > 0) + CmdArgs.push_back(Args.MakeArgString(StringRef("-L") + LibPath)); +} + +void ToolChain::AddCCKextLibArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + CmdArgs.push_back("-lcc_kext"); +} + +bool ToolChain::AddFastMathRuntimeIfAvailable(const ArgList &Args, + ArgStringList &CmdArgs) const { + // Do not check for -fno-fast-math or -fno-unsafe-math when -Ofast passed + // (to keep the linker options consistent with gcc and clang itself). + if (!isOptimizationLevelFast(Args)) { + // Check if -ffast-math or -funsafe-math. + Arg *A = + Args.getLastArg(options::OPT_ffast_math, options::OPT_fno_fast_math, + options::OPT_funsafe_math_optimizations, + options::OPT_fno_unsafe_math_optimizations); + + if (!A || A->getOption().getID() == options::OPT_fno_fast_math || + A->getOption().getID() == options::OPT_fno_unsafe_math_optimizations) + return false; + } + // If crtfastmath.o exists add it to the arguments. + std::string Path = GetFilePath("crtfastmath.o"); + if (Path == "crtfastmath.o") // Not found. + return false; + + CmdArgs.push_back(Args.MakeArgString(Path)); + return true; +} + +SanitizerMask ToolChain::getSupportedSanitizers() const { + // Return sanitizers which don't require runtime support and are not + // platform dependent. + using namespace SanitizerKind; + SanitizerMask Res = (Undefined & ~Vptr & ~Function) | (CFI & ~CFIICall) | + CFICastStrict | UnsignedIntegerOverflow | LocalBounds; + if (getTriple().getArch() == llvm::Triple::x86 || + getTriple().getArch() == llvm::Triple::x86_64) + Res |= CFIICall; + return Res; +} + +void ToolChain::AddCudaIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const {} diff --git a/contrib/llvm/tools/clang/lib/Driver/ToolChains.cpp b/contrib/llvm/tools/clang/lib/Driver/ToolChains.cpp new file mode 100644 index 0000000..b02430e --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains.cpp @@ -0,0 +1,4532 @@ +//===--- ToolChains.cpp - 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 "ToolChains.h" +#include "clang/Basic/ObjCRuntime.h" +#include "clang/Basic/Version.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/SanitizerArgs.h" +#include "llvm/ADT/STLExtras.h" +#include "llvm/ADT/SmallString.h" +#include "llvm/ADT/StringExtras.h" +#include "llvm/ADT/StringSwitch.h" +#include "llvm/Option/Arg.h" +#include "llvm/Option/ArgList.h" +#include "llvm/Option/OptTable.h" +#include "llvm/Option/Option.h" +#include "llvm/ProfileData/InstrProf.h" +#include "llvm/Support/ErrorHandling.h" +#include "llvm/Support/FileSystem.h" +#include "llvm/Support/MemoryBuffer.h" +#include "llvm/Support/Path.h" +#include "llvm/Support/Program.h" +#include "llvm/Support/TargetParser.h" +#include "llvm/Support/raw_ostream.h" +#include <cstdlib> // ::getenv +#include <system_error> + +using namespace clang::driver; +using namespace clang::driver::toolchains; +using namespace clang; +using namespace llvm::opt; + +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) {} + +types::ID MachO::LookupTypeForExtension(const char *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; } + +/// 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); + } +} + +// 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(); +} + +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")); +} + +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(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 MachO::ComputeEffectiveClangTriple(const ArgList &Args, + types::ID InputType) const { + llvm::Triple Triple(ComputeLLVMTriple(Args, InputType)); + + return Triple.getTriple(); +} + +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(); +} + +void Generic_ELF::anchor() {} + +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"); + } +} + +/// \brief Determine whether Objective-C automated reference counting is +/// enabled. +static bool isObjCAutoRefCount(const ArgList &Args) { + return Args.hasFlag(options::OPT_fobjc_arc, options::OPT_fno_objc_arc, false); +} + +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)); +} + +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 Darwin::addProfileRTLibs(const ArgList &Args, + ArgStringList &CmdArgs) const { + if (!needsProfileRT(Args)) return; + + // TODO: Clean this up once autoconf is gone + SmallString<128> P(getDriver().ResourceDir); + llvm::sys::path::append(P, "lib", "darwin"); + const char *Library = "libclang_rt.profile_osx.a"; + + // Select the appropriate runtime library for the target. + if (isTargetWatchOS()) { + Library = "libclang_rt.profile_watchos.a"; + } else if (isTargetWatchOSSimulator()) { + llvm::sys::path::append(P, "libclang_rt.profile_watchossim.a"); + Library = getVFS().exists(P) ? "libclang_rt.profile_watchossim.a" + : "libclang_rt.profile_watchos.a"; + } else if (isTargetTvOS()) { + Library = "libclang_rt.profile_tvos.a"; + } else if (isTargetTvOSSimulator()) { + llvm::sys::path::append(P, "libclang_rt.profile_tvossim.a"); + Library = getVFS().exists(P) ? "libclang_rt.profile_tvossim.a" + : "libclang_rt.profile_tvos.a"; + } else if (isTargetIPhoneOS()) { + Library = "libclang_rt.profile_ios.a"; + } else if (isTargetIOSSimulator()) { + llvm::sys::path::append(P, "libclang_rt.profile_iossim.a"); + Library = getVFS().exists(P) ? "libclang_rt.profile_iossim.a" + : "libclang_rt.profile_ios.a"; + } else { + assert(isTargetMacOS() && "unexpected non MacOS platform"); + } + AddLinkRuntimeLib(Args, CmdArgs, Library, + /*AlwaysLink*/ true); + return; +} + +void DarwinClang::AddLinkSanitizerLibArgs(const ArgList &Args, + ArgStringList &CmdArgs, + StringRef Sanitizer) const { + if (!Args.hasArg(options::OPT_dynamiclib) && + !Args.hasArg(options::OPT_bundle)) { + // Sanitizer runtime libraries requires C++. + AddCXXStdlibLibArgs(Args, CmdArgs); + } + // ASan is not supported on watchOS. + assert(isTargetMacOS() || isTargetIOSSimulator()); + StringRef OS = isTargetMacOS() ? "osx" : "iossim"; + AddLinkRuntimeLib( + Args, CmdArgs, + (Twine("libclang_rt.") + Sanitizer + "_" + OS + "_dynamic.dylib").str(), + /*AlwaysLink*/ true, /*IsEmbedded*/ false, + /*AddRPath*/ true); + + if (GetCXXStdlibType(Args) == ToolChain::CST_Libcxx) { + // Add explicit dependcy on -lc++abi, as -lc++ doesn't re-export + // all RTTI-related symbols that UBSan uses. + CmdArgs.push_back("-lc++abi"); + } +} + +void DarwinClang::AddLinkRuntimeLibArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + // Darwin only supports the compiler-rt based runtime libraries. + switch (GetRuntimeLibType(Args)) { + case ToolChain::RLT_CompilerRT: + break; + default: + getDriver().Diag(diag::err_drv_unsupported_rtlib_for_platform) + << Args.getLastArg(options::OPT_rtlib_EQ)->getValue() << "darwin"; + return; + } + + // 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.needsUbsanRt()) + AddLinkSanitizerLibArgs(Args, CmdArgs, "ubsan"); + if (Sanitize.needsTsanRt()) + AddLinkSanitizerLibArgs(Args, CmdArgs, "tsan"); + + // 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"); + + // 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. + // + // 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. + if (isMacosxVersionLT(10, 5)) { + AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.10.4.a"); + } else { + if (getTriple().getArch() == llvm::Triple::x86) + AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.eprintf.a"); + AddLinkRuntimeLib(Args, CmdArgs, "libclang_rt.osx.a"); + } + } +} + +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); + Arg *TvOSVersion = Args.getLastArg(options::OPT_mtvos_version_min_EQ); + Arg *WatchOSVersion = Args.getLastArg(options::OPT_mwatchos_version_min_EQ); + + 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 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() && + Args.hasArg(options::OPT_isysroot)) { + if (const Arg *A = Args.getLastArg(options::OPT_isysroot)) { + StringRef isysroot = A->getValue(); + // Assume SDK has path: SOME_PATH/SDKs/PlatformXX.YY.sdk + size_t BeginSDK = isysroot.rfind("SDKs/"); + size_t EndSDK = isysroot.rfind(".sdk"); + if (BeginSDK != StringRef::npos && EndSDK != StringRef::npos) { + StringRef SDK = isysroot.slice(BeginSDK + 5, EndSDK); + // 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 = Version; + else if (SDK.startswith("WatchOS") || + SDK.startswith("WatchSimulator")) + WatchOSTarget = Version; + else if (SDK.startswith("AppleTVOS") || + SDK.startswith("AppleTVSimulator")) + TvOSTarget = Version; + } + } + } + } + + // If no OSX or iOS target has been specified, try to guess platform + // from arch name and compute the version from the triple. + if (OSXTarget.empty() && iOSTarget.empty() && TvOSTarget.empty() && + WatchOSTarget.empty()) { + StringRef MachOArchName = getMachOArchName(Args); + unsigned Major, Minor, Micro; + if (MachOArchName == "armv7" || MachOArchName == "armv7s" || + MachOArchName == "arm64") { + getTriple().getiOSVersion(Major, Minor, Micro); + llvm::raw_string_ostream(iOSTarget) << Major << '.' << Minor << '.' + << Micro; + } else if (MachOArchName == "armv7k") { + getTriple().getWatchOSVersion(Major, Minor, Micro); + llvm::raw_string_ostream(WatchOSTarget) << Major << '.' << Minor << '.' + << Micro; + } else if (MachOArchName != "armv6m" && MachOArchName != "armv7m" && + MachOArchName != "armv7em") { + if (!getTriple().getMacOSXVersion(Major, Minor, Micro)) { + getDriver().Diag(diag::err_drv_invalid_darwin_version) + << getTriple().getOSName(); + } + llvm::raw_string_ostream(OSXTarget) << 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. + unsigned Major, Minor, Micro; + bool HadExtra; + 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 >= 10 || Minor >= 100 || Micro >= 100) + getDriver().Diag(diag::err_drv_invalid_version_number) + << iOSVersion->getAsString(Args); + } else if (Platform == TvOS) { + if (!Driver::GetReleaseVersion(TvOSVersion->getValue(), Major, Minor, + Micro, HadExtra) || HadExtra || + Major >= 10 || 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); +} + +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, + const char *BoundArch) 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 && + 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) { + StringRef Name = BoundArch; + const Option MCpu = Opts.getOption(options::OPT_mcpu_EQ); + const Option MArch = Opts.getOption(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); +} + +DerivedArgList *Darwin::TranslateArgs(const DerivedArgList &Args, + const char *BoundArch) const { + // First get the generic Apple args, before moving onto Darwin-specific ones. + DerivedArgList *DAL = MachO::TranslateArgs(Args, BoundArch); + const OptTable &Opts = getDriver().getOpts(); + + // If no architecture is bound, none of the translations here are relevant. + if (!BoundArch) + 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 = DAL->getArgs().erase(it); + } + } + + // Default to use libc++ on OS X 10.9+ and iOS 7+. + if (((isTargetMacOS() && !isMacosxVersionLT(10, 9)) || + (isTargetIOSBased() && !isIPhoneOSVersionLT(7, 0)) || + isTargetWatchOSBased()) && + !Args.getLastArg(options::OPT_stdlib_EQ)) + 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; + } + } + + return DAL; +} + +bool MachO::IsUnwindTablesDefault() const { + return getArch() == llvm::Triple::x86_64; +} + +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. + return !isTargetWatchOS(); +} + +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 { + SanitizerMask Res = ToolChain::getSupportedSanitizers(); + if (isTargetMacOS() || isTargetIOSSimulator()) + Res |= SanitizerKind::Address; + if (isTargetMacOS()) { + if (!isMacosxVersionLT(10, 9)) + Res |= SanitizerKind::Vptr; + Res |= SanitizerKind::SafeStack; + Res |= SanitizerKind::Thread; + } + return Res; +} + +/// 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 Parse a GCCVersion object out of a string of text. +/// +/// This is the primary means of forming GCCVersion objects. +/*static*/ +Generic_GCC::GCCVersion Linux::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 (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: + // 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; +} + +/// \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; +} + +static llvm::StringRef getGCCToolchainDir(const ArgList &Args) { + const Arg *A = Args.getLastArg(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 + "/.."); + + // And finally in /usr. + if (D.SysRoot.empty()) + Prefixes.push_back("/usr"); + } + + // 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"}; + 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"}; + 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", "mipsel-linux-android", "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-android", "mips64el-linux-gnuabi64"}; + + 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)); + 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: + 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: + 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()); +} + +// \brief -- try common CUDA installation paths looking for files we need for +// CUDA compilation. + +void Generic_GCC::CudaInstallationDetector::init( + const llvm::Triple &TargetTriple, const llvm::opt::ArgList &Args) { + SmallVector<std::string, 4> CudaPathCandidates; + + if (Args.hasArg(options::OPT_cuda_path_EQ)) + CudaPathCandidates.push_back( + Args.getLastArgValue(options::OPT_cuda_path_EQ)); + else { + CudaPathCandidates.push_back(D.SysRoot + "/usr/local/cuda"); + CudaPathCandidates.push_back(D.SysRoot + "/usr/local/cuda-7.5"); + CudaPathCandidates.push_back(D.SysRoot + "/usr/local/cuda-7.0"); + } + + for (const auto &CudaPath : CudaPathCandidates) { + if (CudaPath.empty() || !D.getVFS().exists(CudaPath)) + continue; + + CudaInstallPath = CudaPath; + CudaIncludePath = CudaInstallPath + "/include"; + CudaLibDevicePath = CudaInstallPath + "/nvvm/libdevice"; + CudaLibPath = + CudaInstallPath + (TargetTriple.isArch64Bit() ? "/lib64" : "/lib"); + + if (!(D.getVFS().exists(CudaIncludePath) && + D.getVFS().exists(CudaLibPath) && + D.getVFS().exists(CudaLibDevicePath))) + continue; + + std::error_code EC; + for (llvm::sys::fs::directory_iterator LI(CudaLibDevicePath, 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())); + CudaLibDeviceMap[GpuArch] = FilePath.str(); + // Insert map entries for specifc devices with this compute capability. + if (GpuArch == "compute_20") { + CudaLibDeviceMap["sm_20"] = FilePath; + CudaLibDeviceMap["sm_21"] = FilePath; + } else if (GpuArch == "compute_30") { + CudaLibDeviceMap["sm_30"] = FilePath; + CudaLibDeviceMap["sm_32"] = FilePath; + } else if (GpuArch == "compute_35") { + CudaLibDeviceMap["sm_35"] = FilePath; + CudaLibDeviceMap["sm_37"] = FilePath; + } + } + + IsValid = true; + break; + } +} + +void Generic_GCC::CudaInstallationDetector::print(raw_ostream &OS) const { + if (isValid()) + OS << "Found CUDA installation: " << CudaInstallPath << "\n"; +} + +namespace { +// Filter to remove Multilibs that don't exist as a suffix to Path +class FilterNonExistent { + StringRef Base; + vfs::FileSystem &VFS; + +public: + FilterNonExistent(StringRef Base, vfs::FileSystem &VFS) + : Base(Base), VFS(VFS) {} + bool operator()(const Multilib &M) { + return !VFS.exists(Base + M.gccSuffix() + "/crtbegin.o"); + } +}; +} // end anonymous namespace + +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 isMipsArch(llvm::Triple::ArchType Arch) { + return Arch == llvm::Triple::mips || Arch == llvm::Triple::mipsel || + Arch == llvm::Triple::mips64 || Arch == llvm::Triple::mips64el; +} + +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); +} + +namespace { +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; +}; +} // end anonymous namespace + +static Multilib makeMultilib(StringRef commonSuffix) { + return Multilib(commonSuffix, commonSuffix, commonSuffix); +} + +static bool findMIPSMultilibs(const Driver &D, const llvm::Triple &TargetTriple, + StringRef Path, const ArgList &Args, + DetectedMultilibs &Result) { + // Some MIPS toolchains put libraries and object files compiled + // using different options in to the sub-directoris which names + // reflects the flags used for compilation. For example sysroot + // directory might looks like the following examples: + // + // /usr + // /lib <= crt*.o files compiled with '-mips32' + // /mips16 + // /usr + // /lib <= crt*.o files compiled with '-mips16' + // /el + // /usr + // /lib <= crt*.o files compiled with '-mips16 -EL' + // + // or + // + // /usr + // /lib <= crt*.o files compiled with '-mips32r2' + // /mips16 + // /usr + // /lib <= crt*.o files compiled with '-mips32r2 -mips16' + // /mips32 + // /usr + // /lib <= crt*.o files compiled with '-mips32' + + FilterNonExistent NonExistent(Path, D.getVFS()); + + // Check for FSF toolchain multilibs + MultilibSet FSFMipsMultilibs; + { + 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"); + + FSFMipsMultilibs = + 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([](StringRef InstallDir, + StringRef TripleStr, const Multilib &M) { + std::vector<std::string> Dirs; + Dirs.push_back((InstallDir + "/include").str()); + std::string SysRootInc = + InstallDir.str() + "/../../../../sysroot"; + if (StringRef(M.includeSuffix()).startswith("/uclibc")) + Dirs.push_back(SysRootInc + "/uclibc/usr/include"); + else + Dirs.push_back(SysRootInc + "/usr/include"); + return Dirs; + }); + } + + // Check for 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([]( + StringRef InstallDir, StringRef TripleStr, const Multilib &M) { + std::vector<std::string> Dirs; + Dirs.push_back( + (InstallDir + "/../sysroot" + M.osSuffix() + "/usr/include").str()); + return Dirs; + }); + } + + // 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([](StringRef InstallDir, + StringRef TripleStr, const Multilib &M) { + std::vector<std::string> Dirs; + Dirs.push_back((InstallDir + "/include").str()); + std::string SysRootInc = + InstallDir.str() + "/../../../../" + TripleStr.str(); + if (StringRef(M.includeSuffix()).startswith("/uclibc")) + Dirs.push_back(SysRootInc + "/libc/uclibc/usr/include"); + else + Dirs.push_back(SysRootInc + "/libc/usr/include"); + return Dirs; + }); + } + + MultilibSet AndroidMipsMultilibs = + MultilibSet() + .Maybe(Multilib("/mips-r2").flag("+march=mips32r2")) + .Maybe(Multilib("/mips-r6").flag("+march=mips32r6")) + .FilterOut(NonExistent); + + 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); + } + + MultilibSet ImgMultilibs; + { + 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"); + + ImgMultilibs = + MultilibSet() + .Maybe(Mips64r6) + .Maybe(MAbi64) + .Maybe(LittleEndian) + .FilterOut(NonExistent) + .setIncludeDirsCallback([](StringRef InstallDir, + StringRef TripleStr, const Multilib &M) { + std::vector<std::string> Dirs; + Dirs.push_back((InstallDir + "/include").str()); + Dirs.push_back( + (InstallDir + "/../../../../sysroot/usr/include").str()); + return Dirs; + }); + } + + 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(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()) { + // Select Android toolchain. It's the only choice in that case. + if (AndroidMipsMultilibs.select(Flags, Result.SelectedMultilib)) { + Result.Multilibs = AndroidMipsMultilibs; + return true; + } + return false; + } + + if (TargetTriple.getVendor() == llvm::Triple::MipsTechnologies && + TargetTriple.getOS() == llvm::Triple::Linux && + TargetTriple.getEnvironment() == llvm::Triple::UnknownEnvironment) { + if (MuslMipsMultilibs.select(Flags, Result.SelectedMultilib)) { + Result.Multilibs = MuslMipsMultilibs; + return true; + } + return false; + } + + if (TargetTriple.getVendor() == llvm::Triple::ImaginationTechnologies && + TargetTriple.getOS() == llvm::Triple::Linux && + TargetTriple.getEnvironment() == llvm::Triple::GNU) { + // Select mips-img-linux-gnu toolchain. + if (ImgMultilibs.select(Flags, Result.SelectedMultilib)) { + Result.Multilibs = ImgMultilibs; + return true; + } + return false; + } + + // Sort candidates. Toolchain that best meets the directories goes first. + // Then select the first toolchains matches command line flags. + MultilibSet *candidates[] = {&DebianMipsMultilibs, &FSFMipsMultilibs, + &CSMipsMultilibs}; + std::sort( + std::begin(candidates), std::end(candidates), + [](MultilibSet *a, MultilibSet *b) { return a->size() > b->size(); }); + for (const auto &candidate : candidates) { + if (candidate->select(Flags, Result.SelectedMultilib)) { + if (candidate == &DebianMipsMultilibs) + Result.BiarchSibling = Multilib(); + Result.Multilibs = *candidate; + 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 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"); + + FilterNonExistent NonExistent(Path, 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; +} + +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; + } +} + +void Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple( + const llvm::Triple &TargetTriple, const ArgList &Args, + const std::string &LibDir, StringRef CandidateTriple, + bool NeedsBiarchSuffix) { + llvm::Triple::ArchType TargetArch = TargetTriple.getArch(); + // There are various different suffixes involving the triple we + // check for. We also record what is necessary to walk from each back + // up to the lib directory. Specifically, the number of "up" steps + // in the second half of each row is 1 + the number of path separators + // in the first half. + const std::string LibAndInstallSuffixes[][2] = { + {"/gcc/" + CandidateTriple.str(), "/../../.."}, + + // Debian puts cross-compilers in gcc-cross + {"/gcc-cross/" + CandidateTriple.str(), "/../../.."}, + + {"/" + CandidateTriple.str() + "/gcc/" + CandidateTriple.str(), + "/../../../.."}, + + // The Freescale PPC SDK has the gcc libraries in + // <sysroot>/usr/lib/<triple>/x.y.z so have a look there as well. + {"/" + CandidateTriple.str(), "/../.."}, + + // Ubuntu has a strange mis-matched pair of triples that this happens to + // match. + // FIXME: It may be worthwhile to generalize this and look for a second + // triple. + {"/i386-linux-gnu/gcc/" + CandidateTriple.str(), "/../../../.."}}; + + if (TargetTriple.getOS() == llvm::Triple::Solaris) { + scanLibDirForGCCTripleSolaris(TargetTriple, Args, LibDir, CandidateTriple, + NeedsBiarchSuffix); + return; + } + + // Only look at the final, weird Ubuntu suffix for i386-linux-gnu. + const unsigned NumLibSuffixes = (llvm::array_lengthof(LibAndInstallSuffixes) - + (TargetArch != llvm::Triple::x86)); + for (unsigned i = 0; i < NumLibSuffixes; ++i) { + StringRef LibSuffix = LibAndInstallSuffixes[i][0]; + 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; + + DetectedMultilibs Detected; + + // Debian mips multilibs behave more like the rest of the biarch ones, + // so handle them there + if (isMipsArch(TargetArch)) { + if (!findMIPSMultilibs(D, TargetTriple, LI->getName(), Args, Detected)) + continue; + } else if (!findBiarchMultilibs(D, TargetTriple, LI->getName(), Args, + NeedsBiarchSuffix, Detected)) { + continue; + } + + Multilibs = Detected.Multilibs; + SelectedMultilib = Detected.SelectedMultilib; + BiarchSibling = Detected.BiarchSibling; + 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 + LibAndInstallSuffixes[i][0] + "/" + VersionText.str(); + GCCParentLibPath = GCCInstallPath + LibAndInstallSuffixes[i][1]; + IsValid = true; + } + } +} + +Generic_GCC::Generic_GCC(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : ToolChain(D, Triple, Args), GCCInstallation(D), CudaInstallation(D) { + 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 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 { + return getArch() == llvm::Triple::x86_64; +} + +bool Generic_GCC::isPICDefault() const { + return getArch() == llvm::Triple::x86_64 && getTriple().isOSWindows(); +} + +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::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: + return true; + default: + return false; + } +} + +/// \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; +} + + +void Generic_ELF::addClangTargetOptions(const ArgList &DriverArgs, + ArgStringList &CC1Args) 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()); + + if (DriverArgs.hasFlag(options::OPT_fuse_init_array, + options::OPT_fno_use_init_array, UseInitArrayDefault)) + CC1Args.push_back("-fuse-init-array"); +} + +/// 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); + + // Use LLD by default. + DefaultLinker = "lld"; +} + +void MipsLLVMToolChain::AddClangSystemIncludeArgs( + const ArgList &DriverArgs, ArgStringList &CC1Args) const { + if (DriverArgs.hasArg(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) { + const auto IncludePaths = + Callback(D.getInstalledDir(), getTripleString(), SelectedMultilib); + for (const auto &Path : IncludePaths) + addExternCSystemIncludeIfExists(DriverArgs, CC1Args, 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(diag::err_drv_invalid_stdlib_name) + << A->getAsString(Args); + } + + return ToolChain::CST_Libcxx; +} + +void MipsLLVMToolChain::AddClangCXXStdlibIncludeArgs( + const ArgList &DriverArgs, ArgStringList &CC1Args) const { + if (DriverArgs.hasArg(options::OPT_nostdlibinc) || + DriverArgs.hasArg(options::OPT_nostdincxx)) + return; + + assert((GetCXXStdlibType(DriverArgs) == ToolChain::CST_Libcxx) && + "Only -lc++ (aka libcxx) is suported in this toolchain."); + + const auto &Callback = Multilibs.includeDirsCallback(); + if (Callback) { + const auto IncludePaths = Callback(getDriver().getInstalledDir(), + getTripleString(), SelectedMultilib); + for (const auto &Path : IncludePaths) { + if (llvm::sys::fs::exists(Path + "/c++/v1")) { + addSystemInclude(DriverArgs, CC1Args, Path + "/c++/v1"); + break; + } + } + } +} + +void MipsLLVMToolChain::AddCXXStdlibLibArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + assert((GetCXXStdlibType(Args) == ToolChain::CST_Libcxx) && + "Only -lc++ (aka libxx) is suported 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(); +} + +/// 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; + + std::string PrefixRelDir = std::string(LLVM_PREFIX) + "/target"; + if (getVFS().exists(PrefixRelDir)) + return PrefixRelDir; + + return InstallRelDir; +} + + +Optional<unsigned> HexagonToolChain::getSmallDataThreshold( + const ArgList &Args) { + StringRef Gn = ""; + if (Arg *A = Args.getLastArg(options::OPT_G, options::OPT_G_EQ, + options::OPT_msmall_data_threshold_EQ)) { + 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(), RootDirs.begin()); + + 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); +} + +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::AddClangCXXStdlibIncludeArgs( + const ArgList &DriverArgs, ArgStringList &CC1Args) const { + if (DriverArgs.hasArg(options::OPT_nostdlibinc) || + DriverArgs.hasArg(options::OPT_nostdincxx)) + return; + + const Driver &D = getDriver(); + std::string TargetDir = getHexagonTargetDir(D.InstalledDir, D.PrefixDirs); + addSystemInclude(DriverArgs, CC1Args, TargetDir + "/hexagon/include/c++"); +} + +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; + + for (auto &A : Args) { + if (A->getOption().matches(options::OPT_mcpu_EQ)) { + CpuArg = A; + A->claim(); + } + } + + StringRef CPU = CpuArg ? CpuArg->getValue() : GetDefaultCPU(); + if (CPU.startswith("hexagon")) + return CPU.substr(sizeof("hexagon") - 1); + return CPU; +} +// End Hexagon + +/// 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); +} +// End AMDGPU + +/// 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(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++"); +} + +void NaClToolChain::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + const Driver &D = getDriver(); + if (DriverArgs.hasArg(options::OPT_nostdlibinc) || + DriverArgs.hasArg(options::OPT_nostdincxx)) + return; + + // 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(DriverArgs); + + SmallString<128> P(D.Dir + "/../"); + switch (getTriple().getArch()) { + case llvm::Triple::arm: + llvm::sys::path::append(P, "arm-nacl/include/c++/v1"); + addSystemInclude(DriverArgs, CC1Args, P.str()); + break; + case llvm::Triple::x86: + llvm::sys::path::append(P, "x86_64-nacl/include/c++/v1"); + addSystemInclude(DriverArgs, CC1Args, P.str()); + break; + case llvm::Triple::x86_64: + llvm::sys::path::append(P, "x86_64-nacl/include/c++/v1"); + addSystemInclude(DriverArgs, CC1Args, P.str()); + break; + case llvm::Triple::mipsel: + llvm::sys::path::append(P, "mipsel-nacl/include/c++/v1"); + addSystemInclude(DriverArgs, CC1Args, P.str()); + break; + default: + break; + } +} + +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(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); +} +// End NaCl + +/// 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; } + +// 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()); +} + +void CloudABI::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + if (DriverArgs.hasArg(options::OPT_nostdlibinc) && + DriverArgs.hasArg(options::OPT_nostdincxx)) + return; + + SmallString<128> P(getDriver().Dir); + llvm::sys::path::append(P, "..", getTriple().str(), "include/c++/v1"); + addSystemInclude(DriverArgs, CC1Args, 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); +} + +/// 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); } + +/// 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::GetCXXStdlibType(const ArgList &Args) const { + if (Arg *A = Args.getLastArg(options::OPT_stdlib_EQ)) { + StringRef Value = A->getValue(); + if (Value == "libstdc++") + return ToolChain::CST_Libstdcxx; + if (Value == "libc++") + return ToolChain::CST_Libcxx; + + getDriver().Diag(diag::err_drv_invalid_stdlib_name) << A->getAsString(Args); + } + return ToolChain::CST_Libcxx; +} + +void Bitrig::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, + getDriver().SysRoot + "/usr/include/c++/v1"); + break; + case ToolChain::CST_Libstdcxx: + addSystemInclude(DriverArgs, CC1Args, + getDriver().SysRoot + "/usr/include/c++/stdc++"); + addSystemInclude(DriverArgs, CC1Args, + getDriver().SysRoot + "/usr/include/c++/stdc++/backward"); + + StringRef Triple = getTriple().str(); + if (Triple.startswith("amd64")) + addSystemInclude(DriverArgs, CC1Args, + getDriver().SysRoot + "/usr/include/c++/stdc++/x86_64" + + Triple.substr(5)); + else + addSystemInclude(DriverArgs, CC1Args, getDriver().SysRoot + + "/usr/include/c++/stdc++/" + + Triple); + break; + } +} + +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; + } +} + +/// 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::GetCXXStdlibType(const ArgList &Args) const { + if (Arg *A = Args.getLastArg(options::OPT_stdlib_EQ)) { + StringRef Value = A->getValue(); + if (Value == "libstdc++") + return ToolChain::CST_Libstdcxx; + if (Value == "libc++") + return ToolChain::CST_Libcxx; + + getDriver().Diag(diag::err_drv_invalid_stdlib_name) << A->getAsString(Args); + } + if (getTriple().getOSMajorVersion() >= 10) + return ToolChain::CST_Libcxx; + return ToolChain::CST_Libstdcxx; +} + +void FreeBSD::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, + getDriver().SysRoot + "/usr/include/c++/v1"); + break; + case ToolChain::CST_Libstdcxx: + addSystemInclude(DriverArgs, CC1Args, + getDriver().SysRoot + "/usr/include/c++/4.2"); + addSystemInclude(DriverArgs, CC1Args, + getDriver().SysRoot + "/usr/include/c++/4.2/backward"); + 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; +} + +/// 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::GetCXXStdlibType(const ArgList &Args) const { + if (Arg *A = Args.getLastArg(options::OPT_stdlib_EQ)) { + StringRef Value = A->getValue(); + if (Value == "libstdc++") + return ToolChain::CST_Libstdcxx; + if (Value == "libc++") + return ToolChain::CST_Libcxx; + + getDriver().Diag(diag::err_drv_invalid_stdlib_name) << A->getAsString(Args); + } + + unsigned Major, Minor, Micro; + getTriple().getOSVersion(Major, Minor, Micro); + if (Major >= 7 || (Major == 6 && Minor == 99 && Micro >= 49) || Major == 0) { + switch (getArch()) { + case llvm::Triple::aarch64: + 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::x86: + case llvm::Triple::x86_64: + return ToolChain::CST_Libcxx; + default: + break; + } + } + return ToolChain::CST_Libstdcxx; +} + +void NetBSD::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, + getDriver().SysRoot + "/usr/include/c++/"); + break; + case ToolChain::CST_Libstdcxx: + addSystemInclude(DriverArgs, CC1Args, + getDriver().SysRoot + "/usr/include/g++"); + addSystemInclude(DriverArgs, CC1Args, + getDriver().SysRoot + "/usr/include/g++/backward"); + break; + } +} + +/// Minix - Minix tool chain which can call as(1) and ld(1) directly. + +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 *Minix::buildAssembler() const { + return new tools::minix::Assembler(*this); +} + +Tool *Minix::buildLinker() const { return new tools::minix::Linker(*this); } + +static void addPathIfExists(const Driver &D, const Twine &Path, + ToolChain::path_list &Paths) { + if (D.getVFS().exists(Path)) + Paths.push_back(Path.str()); +} + +/// 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_GCC(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. + 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()); + } +} + +/// Distribution (very bare-bones at the moment). + +enum Distro { + // NB: Releases of a particular Linux distro should be kept together + // in this enum, because some tests are done by integer comparison against + // the first and last known member in the family, e.g. IsRedHat(). + ArchLinux, + DebianLenny, + DebianSqueeze, + DebianWheezy, + DebianJessie, + DebianStretch, + Exherbo, + RHEL4, + RHEL5, + RHEL6, + RHEL7, + Fedora, + OpenSUSE, + UbuntuHardy, + UbuntuIntrepid, + UbuntuJaunty, + UbuntuKarmic, + UbuntuLucid, + UbuntuMaverick, + UbuntuNatty, + UbuntuOneiric, + UbuntuPrecise, + UbuntuQuantal, + UbuntuRaring, + UbuntuSaucy, + UbuntuTrusty, + UbuntuUtopic, + UbuntuVivid, + UbuntuWily, + UbuntuXenial, + UnknownDistro +}; + +static bool IsRedhat(enum Distro Distro) { + return Distro == Fedora || (Distro >= RHEL4 && Distro <= RHEL7); +} + +static bool IsOpenSUSE(enum Distro Distro) { return Distro == OpenSUSE; } + +static bool IsDebian(enum Distro Distro) { + return Distro >= DebianLenny && Distro <= DebianStretch; +} + +static bool IsUbuntu(enum Distro Distro) { + return Distro >= UbuntuHardy && Distro <= UbuntuXenial; +} + +static Distro DetectDistro(const Driver &D, llvm::Triple::ArchType Arch) { + llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> File = + llvm::MemoryBuffer::getFile("/etc/lsb-release"); + if (File) { + StringRef Data = File.get()->getBuffer(); + SmallVector<StringRef, 16> Lines; + Data.split(Lines, "\n"); + Distro Version = UnknownDistro; + for (StringRef Line : Lines) + if (Version == UnknownDistro && Line.startswith("DISTRIB_CODENAME=")) + Version = llvm::StringSwitch<Distro>(Line.substr(17)) + .Case("hardy", UbuntuHardy) + .Case("intrepid", UbuntuIntrepid) + .Case("jaunty", UbuntuJaunty) + .Case("karmic", UbuntuKarmic) + .Case("lucid", UbuntuLucid) + .Case("maverick", UbuntuMaverick) + .Case("natty", UbuntuNatty) + .Case("oneiric", UbuntuOneiric) + .Case("precise", UbuntuPrecise) + .Case("quantal", UbuntuQuantal) + .Case("raring", UbuntuRaring) + .Case("saucy", UbuntuSaucy) + .Case("trusty", UbuntuTrusty) + .Case("utopic", UbuntuUtopic) + .Case("vivid", UbuntuVivid) + .Case("wily", UbuntuWily) + .Case("xenial", UbuntuXenial) + .Default(UnknownDistro); + return Version; + } + + File = llvm::MemoryBuffer::getFile("/etc/redhat-release"); + if (File) { + StringRef Data = File.get()->getBuffer(); + if (Data.startswith("Fedora release")) + return Fedora; + if (Data.startswith("Red Hat Enterprise Linux") || + Data.startswith("CentOS")) { + if (Data.find("release 7") != StringRef::npos) + return RHEL7; + else if (Data.find("release 6") != StringRef::npos) + return RHEL6; + else if (Data.find("release 5") != StringRef::npos) + return RHEL5; + else if (Data.find("release 4") != StringRef::npos) + return RHEL4; + } + return UnknownDistro; + } + + File = llvm::MemoryBuffer::getFile("/etc/debian_version"); + if (File) { + StringRef Data = File.get()->getBuffer(); + if (Data[0] == '5') + return DebianLenny; + else if (Data.startswith("squeeze/sid") || Data[0] == '6') + return DebianSqueeze; + else if (Data.startswith("wheezy/sid") || Data[0] == '7') + return DebianWheezy; + else if (Data.startswith("jessie/sid") || Data[0] == '8') + return DebianJessie; + else if (Data.startswith("stretch/sid") || Data[0] == '9') + return DebianStretch; + return UnknownDistro; + } + + if (D.getVFS().exists("/etc/SuSE-release")) + return OpenSUSE; + + if (D.getVFS().exists("/etc/exherbo-release")) + return Exherbo; + + if (D.getVFS().exists("/etc/arch-release")) + return ArchLinux; + + return UnknownDistro; +} + +/// \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 (isMipsArch(Triple.getArch())) { + // 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"; +} + +Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args) + : Generic_ELF(D, Triple, Args) { + GCCInstallation.init(Triple, Args); + CudaInstallation.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 = DetectDistro(D, Arch); + + if (IsOpenSUSE(Distro) || IsUbuntu(Distro)) { + 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 = isMipsArch(Arch); + + 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. + if (!IsMips && !IsAndroid) { + if (IsRedhat(Distro) || IsOpenSUSE(Distro) || + (IsUbuntu(Distro) && Distro >= UbuntuMaverick)) + ExtraOpts.push_back("--hash-style=gnu"); + + if (IsDebian(Distro) || IsOpenSUSE(Distro) || Distro == UbuntuLucid || + Distro == UbuntuJaunty || Distro == UbuntuKarmic) + ExtraOpts.push_back("--hash-style=both"); + } + + if (IsRedhat(Distro)) + ExtraOpts.push_back("--no-add-needed"); + + if ((IsDebian(Distro) && Distro >= DebianSqueeze) || IsOpenSUSE(Distro) || + (IsRedhat(Distro) && Distro != RHEL4 && Distro != RHEL5) || + (IsUbuntu(Distro) && Distro >= UbuntuKarmic)) + ExtraOpts.push_back("--build-id"); + + if (IsOpenSUSE(Distro)) + 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(); + + // 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() || !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(); +} + +void Linux::AddClangSystemIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + const Driver &D = getDriver(); + std::string SysRoot = computeSysRoot(); + + if (DriverArgs.hasArg(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) { + const auto IncludePaths = Callback(GCCInstallation.getInstallPath(), + GCCInstallation.getTriple().str(), + GCCInstallation.getMultilib()); + for (const auto &Path : IncludePaths) + addExternCSystemIncludeIfExists(DriverArgs, CC1Args, 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() : ""; +} + +void Linux::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + if (DriverArgs.hasArg(options::OPT_nostdlibinc) || + DriverArgs.hasArg(options::OPT_nostdincxx)) + return; + + // Check if libc++ has been enabled and provide its include paths if so. + if (GetCXXStdlibType(DriverArgs) == ToolChain::CST_Libcxx) { + const std::string LibCXXIncludePathCandidates[] = { + DetectLibcxxIncludePath(getDriver().Dir + "/../include/c++"), + + // We also check the system as for a long time this is the only place + // Clang looked. + // FIXME: We should really remove this. It doesn't make any sense. + DetectLibcxxIncludePath(getDriver().SysRoot + "/usr/include/c++")}; + for (const auto &IncludePath : LibCXXIncludePathCandidates) { + if (IncludePath.empty() || !getVFS().exists(IncludePath)) + continue; + // Add the first candidate that exists. + addSystemInclude(DriverArgs, CC1Args, IncludePath); + break; + } + return; + } + + // We need a detected GCC installation on Linux to provide libstdc++'s + // headers. We handled the libc++ case above. + 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.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 { + if (DriverArgs.hasArg(options::OPT_nocudainc)) + return; + + if (CudaInstallation.isValid()) { + addSystemInclude(DriverArgs, CC1Args, CudaInstallation.getIncludePath()); + CC1Args.push_back("-include"); + CC1Args.push_back("__clang_cuda_runtime_wrapper.h"); + } +} + +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; + SanitizerMask Res = ToolChain::getSupportedSanitizers(); + Res |= SanitizerKind::Address; + Res |= SanitizerKind::KernelAddress; + Res |= SanitizerKind::Vptr; + Res |= SanitizerKind::SafeStack; + if (IsX86_64 || IsMIPS64 || IsAArch64) + Res |= SanitizerKind::DataFlow; + if (IsX86_64 || IsMIPS64 || IsAArch64) + Res |= SanitizerKind::Leak; + if (IsX86_64 || IsMIPS64 || IsAArch64 || IsPowerPC64) + Res |= SanitizerKind::Thread; + if (IsX86_64 || IsMIPS64 || IsPowerPC64 || IsAArch64) + Res |= SanitizerKind::Memory; + 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); +} + +/// 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); +} + +/// Stub for CUDA toolchain. At the moment we don't have assembler or +/// linker and need toolchain mainly to propagate device-side options +/// to CC1. + +CudaToolChain::CudaToolChain(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : Linux(D, Triple, Args) {} + +void +CudaToolChain::addClangTargetOptions(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const { + Linux::addClangTargetOptions(DriverArgs, CC1Args); + CC1Args.push_back("-fcuda-is-device"); + + if (DriverArgs.hasArg(options::OPT_nocudalib)) + return; + + std::string LibDeviceFile = CudaInstallation.getLibDeviceFile( + DriverArgs.getLastArgValue(options::OPT_march_EQ)); + if (!LibDeviceFile.empty()) { + 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"); + } +} + +llvm::opt::DerivedArgList * +CudaToolChain::TranslateArgs(const llvm::opt::DerivedArgList &Args, + const char *BoundArch) const { + DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs()); + const OptTable &Opts = getDriver().getOpts(); + + for (Arg *A : Args) { + if (A->getOption().matches(options::OPT_Xarch__)) { + // Skip this argument unless the architecture matches BoundArch + if (A->getValue(0) != StringRef(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); + } + + DAL->AddJoinedArg(nullptr, Opts.getOption(options::OPT_march_EQ), BoundArch); + return DAL; +} + +/// 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(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) const { + CC1Args.push_back("-nostdsysteminc"); +} + +void XCoreToolChain::AddClangCXXStdlibIncludeArgs( + const ArgList &DriverArgs, ArgStringList &CC1Args) const { + if (DriverArgs.hasArg(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. +} + +MyriadToolChain::MyriadToolChain(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args) + : Generic_GCC(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(diag::err_target_unsupported_arch) << Triple.getArchName() + << "myriad"; + case llvm::Triple::sparc: + case llvm::Triple::sparcel: + case llvm::Triple::shave: + GCCInstallation.init(Triple, Args, {"sparc-myriad-elf"}); + } + + if (GCCInstallation.isValid()) { + // The contents of LibDir are independent of the version of gcc. + // This contains libc, libg (a superset of libc), libm, libstdc++, libssp. + SmallString<128> LibDir(GCCInstallation.getParentLibPath()); + if (Triple.getArch() == llvm::Triple::sparcel) + llvm::sys::path::append(LibDir, "../sparc-myriad-elf/lib/le"); + else + llvm::sys::path::append(LibDir, "../sparc-myriad-elf/lib"); + addPathIfExists(D, LibDir, getFilePaths()); + + // 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()); + // There are actually 4 choices: {le,be} x {fpu,nofpu} + // but as this toolchain is for LEON sparc, it can assume FPU. + if (Triple.getArch() == llvm::Triple::sparcel) + llvm::sys::path::append(CompilerSupportDir, "le"); + addPathIfExists(D, CompilerSupportDir, getFilePaths()); + } +} + +MyriadToolChain::~MyriadToolChain() {} + +void MyriadToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs, + ArgStringList &CC1Args) const { + if (!DriverArgs.hasArg(options::OPT_nostdinc)) + addSystemInclude(DriverArgs, CC1Args, getDriver().SysRoot + "/include"); +} + +void MyriadToolChain::AddClangCXXStdlibIncludeArgs( + const ArgList &DriverArgs, ArgStringList &CC1Args) const { + if (DriverArgs.hasArg(options::OPT_nostdlibinc) || + DriverArgs.hasArg(options::OPT_nostdincxx)) + return; + + // Only libstdc++, for now. + 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); +} + +WebAssembly::WebAssembly(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args) + : ToolChain(D, Triple, Args) { + // Use LLD by default. + DefaultLinker = "lld"; +} + +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) const { + if (DriverArgs.hasFlag(options::OPT_fuse_init_array, + options::OPT_fno_use_init_array, true)) + CC1Args.push_back("-fuse-init-array"); +} + +Tool *WebAssembly::buildLinker() const { + return new tools::wasm::Linker(*this); +} + +PS4CPU::PS4CPU(const Driver &D, const llvm::Triple &Triple, const ArgList &Args) + : Generic_ELF(D, Triple, Args) { + if (Args.hasArg(options::OPT_static)) + D.Diag(diag::err_drv_unsupported_opt_for_target) << "-static" << "PS4"; + + // Determine where to find the PS4 libraries. We use SCE_PS4_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_PS4_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 *PS4CPU::buildAssembler() const { + return new tools::PS4cpu::Assemble(*this); +} + +Tool *PS4CPU::buildLinker() const { return new tools::PS4cpu::Link(*this); } + +bool PS4CPU::isPICDefault() const { return true; } + +bool PS4CPU::HasNativeLLVMSupport() const { return true; } + +SanitizerMask 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.h b/contrib/llvm/tools/clang/lib/Driver/ToolChains.h new file mode 100644 index 0000000..f4b6b15 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/ToolChains.h @@ -0,0 +1,1146 @@ +//===--- ToolChains.h - 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_H +#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_H + +#include "Tools.h" +#include "clang/Basic/VersionTuple.h" +#include "clang/Driver/Action.h" +#include "clang/Driver/Multilib.h" +#include "clang/Driver/ToolChain.h" +#include "llvm/ADT/DenseMap.h" +#include "llvm/ADT/Optional.h" +#include "llvm/Support/Compiler.h" +#include <set> +#include <vector> + +namespace clang { +namespace driver { +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); + + 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); + }; + +protected: + GCCInstallationDetector GCCInstallation; + + // \brief A class to find a viable CUDA installation + + class CudaInstallationDetector { + bool IsValid; + const Driver &D; + std::string CudaInstallPath; + std::string CudaLibPath; + std::string CudaLibDevicePath; + std::string CudaIncludePath; + llvm::StringMap<std::string> CudaLibDeviceMap; + + public: + CudaInstallationDetector(const Driver &D) : IsValid(false), D(D) {} + void init(const llvm::Triple &TargetTriple, const llvm::opt::ArgList &Args); + + /// \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 installation path. + StringRef getInstallPath() const { return CudaInstallPath; } + /// \brief Get the detected Cuda Include path. + StringRef getIncludePath() const { return CudaIncludePath; } + /// \brief Get the detected Cuda library path. + StringRef getLibPath() const { return CudaLibPath; } + /// \brief Get the detected Cuda device library path. + StringRef getLibDevicePath() const { return CudaLibDevicePath; } + /// \brief Get libdevice file for given architecture + std::string getLibDeviceFile(StringRef Gpu) const { + return CudaLibDeviceMap.lookup(Gpu); + } + }; + + 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 override; + bool isPICDefault() const override; + bool isPIEDefault() const override; + bool isPICDefaultForced() const override; + bool IsIntegratedAssemblerDefault() 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(); } + + 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 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 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 + /// { + + std::string ComputeEffectiveClangTriple(const llvm::opt::ArgList &Args, + types::ID InputType) const override; + + types::ID LookupTypeForExtension(const char *Ext) const override; + + bool HasNativeLLVMSupport() const override; + + llvm::opt::DerivedArgList * + TranslateArgs(const llvm::opt::DerivedArgList &Args, + const char *BoundArch) 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 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; + +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); + } + +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, + const char *BoundArch) const override; + + ObjCRuntime getDefaultObjCRuntime(bool isNonFragile) const override; + bool hasBlocksRuntime() 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; + + SanitizerMask getSupportedSanitizers() 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 + /// { + + 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 { return 2; } + // 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; +}; + +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) const override; +}; + +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; + } + 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; + + bool isPIEDefault() const override { return false; } + +protected: + Tool *buildLinker() const override; +}; + +class LLVM_LIBRARY_VISIBILITY Solaris : public Generic_GCC { +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; +}; + +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 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; + +protected: + Tool *getTool(Action::ActionClass AC) const override; + Tool *buildLinker() const override; + Tool *buildAssembler() const override; + +private: + 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(); +}; + +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; +}; + +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 GetCXXStdlibType(const llvm::opt::ArgList &Args) 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; + unsigned GetDefaultStackProtectorLevel(bool KernelOrKext) const override { + return 1; + } + +protected: + Tool *buildAssembler() const override; + Tool *buildLinker() const override; +}; + +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 GetCXXStdlibType(const llvm::opt::ArgList &Args) const override; + void AddClangCXXStdlibIncludeArgs( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) 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; } + llvm::DebuggerKind getDefaultDebuggerTuning() const override { + return llvm::DebuggerKind::LLDB; + } + +protected: + Tool *buildAssembler() const override; + Tool *buildLinker() const override; +}; + +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 GetCXXStdlibType(const llvm::opt::ArgList &Args) const override; + + void AddClangCXXStdlibIncludeArgs( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + bool IsUnwindTablesDefault() const override { return true; } + +protected: + Tool *buildAssembler() const override; + Tool *buildLinker() const override; +}; + +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; +}; + +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; +}; + +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; + 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 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; + + std::vector<std::string> ExtraOpts; + +protected: + Tool *buildAssembler() const override; + Tool *buildLinker() const override; +}; + +class LLVM_LIBRARY_VISIBILITY CudaToolChain : public Linux { +public: + CudaToolChain(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + + llvm::opt::DerivedArgList * + TranslateArgs(const llvm::opt::DerivedArgList &Args, + const char *BoundArch) const override; + void addClangTargetOptions(const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; +}; + +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; + + 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; + + 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; + } + +private: + Multilib SelectedMultilib; + std::string LibSuffix; +}; + +class LLVM_LIBRARY_VISIBILITY HexagonToolChain : public Linux { +protected: + GCCVersion GCCLibAndIncVersion; + Tool *buildAssembler() const override; + Tool *buildLinker() const override; + +public: + HexagonToolChain(const Driver &D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args); + ~HexagonToolChain() 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; + 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); +}; + +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); + bool IsIntegratedAssemblerDefault() const override { return true; } +}; + +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; + void AddClangCXXStdlibIncludeArgs( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) 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; +}; + +/// 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; +}; + +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, + const char *BoundArch) const override; + + bool IsIntegratedAssemblerDefault() const override; + bool IsUnwindTablesDefault() const override; + bool isPICDefault() const override; + bool isPIEDefault() const override; + bool isPICDefaultForced() 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; + + bool getWindowsSDKDir(std::string &path, int &major, + std::string &windowsSDKIncludeVersion, + std::string &windowsSDKLibVersion) const; + bool getWindowsSDKLibraryPath(std::string &path) const; + /// \brief Check if Universal CRT should be used if available + bool useUniversalCRT(std::string &visualStudioDir) const; + bool getUniversalCRTSdkDir(std::string &path, std::string &ucrtVersion) const; + bool getUniversalCRTLibraryPath(std::string &path) const; + bool getVisualStudioInstallDir(std::string &path) const; + bool getVisualStudioBinariesFolder(const char *clangProgramPath, + std::string &path) const; + + std::string ComputeEffectiveClangTriple(const llvm::opt::ArgList &Args, + types::ID InputType) const override; + SanitizerMask getSupportedSanitizers() 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; +}; + +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 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; +}; + +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) 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; +}; + +/// 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_GCC { +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; + void AddClangCXXStdlibIncludeArgs( + const llvm::opt::ArgList &DriverArgs, + llvm::opt::ArgStringList &CC1Args) const override; + Tool *SelectTool(const JobAction &JA) const override; + unsigned GetDefaultDwarfVersion() const override { return 2; } + +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; +}; + +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) const override; + + Tool *buildLinker() const override; +}; + +class LLVM_LIBRARY_VISIBILITY PS4CPU : public Generic_ELF { +public: + PS4CPU(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 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_H diff --git a/contrib/llvm/tools/clang/lib/Driver/Tools.cpp b/contrib/llvm/tools/clang/lib/Driver/Tools.cpp new file mode 100644 index 0000000..7a185dc --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/Tools.cpp @@ -0,0 +1,10544 @@ +//===--- Tools.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 "Tools.h" +#include "InputInfo.h" +#include "ToolChains.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/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/raw_ostream.h" +#include "llvm/Support/TargetParser.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 handleTargetFeaturesGroup(const ArgList &Args, + std::vector<const char *> &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)); + } +} + +static const char *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") + .Default("-Av8"); + } +} + +/// CheckPreprocessingOptions - Perform some validation of preprocessing +/// arguments that is shared with gcc. +static void CheckPreprocessingOptions(const Driver &D, const ArgList &Args) { + if (Arg *A = Args.getLastArg(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(diag::err_drv_argument_only_allowed_with) + << A->getBaseArg().getAsString(Args) + << (D.IsCLMode() ? "/E, /P or /EP" : "-E"); + } + } +} + +/// CheckCodeGenerationOptions - Perform some validation of code generation +/// arguments that is shared with gcc. +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]); + } +} + +static void 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)); + } + } +} + +static void AddLinkerInputs(const ToolChain &TC, const InputInfoList &Inputs, + const ArgList &Args, ArgStringList &CmdArgs) { + 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 (!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"); +} + +/// \brief Determine whether Objective-C automated reference counting is +/// enabled. +static bool isObjCAutoRefCount(const ArgList &Args) { + return Args.hasFlag(options::OPT_fobjc_arc, options::OPT_fno_objc_arc, false); +} + +/// \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); +} + +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 Clang::AddPreprocessingOptions(Compilation &C, const JobAction &JA, + const Driver &D, const ArgList &Args, + ArgStringList &CmdArgs, + const InputInfo &Output, + const InputInfoList &Inputs, + const ToolChain *AuxToolChain) const { + Arg *A; + + 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)); + } + + 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 -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. + bool RenderedImplicitInclude = false; + for (const Arg *A : Args.filtered(options::OPT_clang_i_Group)) { + if (A->getOption().matches(options::OPT_include)) { + 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); + } + } + } + + // 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"); + + // Optional AuxToolChain indicates that we need to include headers + // for more than one target. If that's the case, add include paths + // from AuxToolChain right after include paths of the same kind for + // the current target. + + // Add C++ include arguments, if needed. + if (types::isCXX(Inputs[0].getType())) { + getToolChain().AddClangCXXStdlibIncludeArgs(Args, CmdArgs); + if (AuxToolChain) + AuxToolChain->AddClangCXXStdlibIncludeArgs(Args, CmdArgs); + } + + // Add system include arguments. + getToolChain().AddClangSystemIncludeArgs(Args, CmdArgs); + if (AuxToolChain) + AuxToolChain->AddClangCXXStdlibIncludeArgs(Args, CmdArgs); + + // Add CUDA include arguments, if needed. + if (types::isCuda(Inputs[0].getType())) + getToolChain().AddCudaIncludeArgs(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; + } +} + +// ARM tools start. + +// Get SubArch (vN). +static int getARMSubArchVersionNumber(const llvm::Triple &Triple) { + llvm::StringRef Arch = Triple.getArchName(); + return llvm::ARM::parseArchVersion(Arch); +} + +// True if M-profile. +static bool 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. +static void getARMArchCPUFromArgs(const ArgList &Args, llvm::StringRef &Arch, + llvm::StringRef &CPU, bool FromAs = false) { + if (const Arg *A = Args.getLastArg(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<const char *> &Features) { + unsigned HWDivID = llvm::ARM::parseHWDiv(HWDiv); + if (!llvm::ARM::getHWDivFeatures(HWDivID, Features)) + D.Diag(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<const char *> &Features) { + unsigned FPUID = llvm::ARM::parseFPU(FPU); + if (!llvm::ARM::getFPUFeatures(FPUID, Features)) + D.Diag(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<const char *> &Features) { + SmallVector<StringRef, 8> Split; + text.split(Split, StringRef("+"), -1, false); + + for (StringRef Feature : Split) { + const char *FeatureName = llvm::ARM::getArchExtFeature(Feature); + if (FeatureName) + 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<const char *> &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(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<const char *> &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(diag::err_drv_clang_unsupported) << A->getAsString(Args); +} + +static bool 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.ComputeEffectiveClangTriple(Args)); + 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; + 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::FreeBSD: + switch (Triple.getEnvironment()) { + case llvm::Triple::GNUEABIHF: + ABI = FloatABI::Hard; + break; + default: + // FreeBSD defaults to soft float + ABI = FloatABI::Soft; + break; + } + break; + + default: + switch (Triple.getEnvironment()) { + case llvm::Triple::GNUEABIHF: + case llvm::Triple::EABIHF: + ABI = FloatABI::Hard; + break; + case llvm::Triple::GNUEABI: + 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. + 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; +} + +static void getARMTargetFeatures(const ToolChain &TC, + const llvm::Triple &Triple, + const ArgList &Args, + std::vector<const char *> &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"); + } + + if (Triple.getSubArch() == llvm::Triple::SubArchType::ARMSubArch_v8_1a) { + Features.insert(Features.begin(), "+v8.1a"); + } + + // 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"); + } + + // 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"; + } 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) + Features.push_back("+no-movt"); +} + +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 if (Triple.isOSBinFormatMachO()) { + if (useAAPCSForMachO(Triple)) { + ABIName = "aapcs"; + } else if (Triple.isWatchOS()) { + ABIName = "aapcs16"; + } else { + ABIName = "apcs-gnu"; + } + } else if (Triple.isOSWindows()) { + // FIXME: this is invalid for WindowsCE + ABIName = "aapcs"; + } else { + // Select the default based on the platform. + switch (Triple.getEnvironment()) { + case llvm::Triple::Android: + case llvm::Triple::GNUEABI: + case llvm::Triple::GNUEABIHF: + ABIName = "aapcs-linux"; + break; + case llvm::Triple::EABIHF: + case llvm::Triple::EABI: + ABIName = "aapcs"; + break; + default: + if (Triple.getOS() == llvm::Triple::NetBSD) + ABIName = "apcs-gnu"; + else + ABIName = "aapcs"; + break; + } + } + 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"); +} +// ARM tools end. + +/// getAArch64TargetCPU - Get the (LLVM) name of the AArch64 cpu we are +/// targeting. +static std::string getAArch64TargetCPU(const ArgList &Args) { + Arg *A; + std::string CPU; + // If we have -mtune or -mcpu, use that. + if ((A = Args.getLastArg(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"; +} + +void Clang::AddAArch64TargetArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + std::string TripleStr = getToolChain().ComputeEffectiveClangTriple(Args); + llvm::Triple Triple(TripleStr); + + 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-global-merge=false"); + else + CmdArgs.push_back("-aarch64-global-merge=true"); + } +} + +// 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()) + DefMips64CPU = "mips64r6"; + + // MIPS3 is the default for mips64*-unknown-openbsd. + if (Triple.getOS() == llvm::Triple::OpenBSD) + DefMips64CPU = "mips3"; + + if (Arg *A = Args.getLastArg(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()) { + // 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) + .Cases("o32", "eabi", 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. +static StringRef 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=. +static mips::FloatABI 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(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; +} + +static void AddTargetFeature(const ArgList &Args, + std::vector<const char *> &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)); + } +} + +static void getMIPSTargetFeatures(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args, + std::vector<const char *> &Features) { + StringRef CPUName; + StringRef ABIName; + mips::getMipsCPUAndABI(Args, Triple, CPUName, ABIName); + ABIName = getGnuCompatibleMipsABIName(ABIName); + + AddTargetFeature(Args, Features, options::OPT_mno_abicalls, + options::OPT_mabicalls, "noabicalls"); + + mips::FloatABI FloatABI = 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 or if none are given and the ABI is O32 + // pass -mfpxx + if (Arg *A = Args.getLastArg(options::OPT_mfp32, options::OPT_mfpxx, + options::OPT_mfp64)) { + if (A->getOption().matches(options::OPT_mfp32)) + Features.push_back(Args.MakeArgString("-fp64")); + else if (A->getOption().matches(options::OPT_mfpxx)) { + Features.push_back(Args.MakeArgString("+fpxx")); + Features.push_back(Args.MakeArgString("+nooddspreg")); + } else + Features.push_back(Args.MakeArgString("+fp64")); + } else if (mips::shouldUseFPXX(Args, Triple, CPUName, ABIName, FloatABI)) { + Features.push_back(Args.MakeArgString("+fpxx")); + Features.push_back(Args.MakeArgString("+nooddspreg")); + } + + AddTargetFeature(Args, Features, options::OPT_mno_odd_spreg, + options::OPT_modd_spreg, "nooddspreg"); +} + +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 = 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(); + } +} + +/// getPPCTargetCPU - Get the (LLVM) name of the PowerPC cpu we are targeting. +static std::string getPPCTargetCPU(const ArgList &Args) { + if (Arg *A = Args.getLastArg(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("pwr3", "pwr3") + .Case("pwr4", "pwr4") + .Case("pwr5", "pwr5") + .Case("pwr5x", "pwr5x") + .Case("pwr6", "pwr6") + .Case("pwr6x", "pwr6x") + .Case("pwr7", "pwr7") + .Case("pwr8", "pwr8") + .Case("powerpc", "ppc") + .Case("powerpc64", "ppc64") + .Case("powerpc64le", "ppc64le") + .Default(""); + } + + return ""; +} + +static void getPPCTargetFeatures(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args, + std::vector<const char *> &Features) { + handleTargetFeaturesGroup(Args, Features, options::OPT_m_ppc_Features_Group); + + ppc::FloatABI FloatABI = ppc::getPPCFloatABI(D, Args); + if (FloatABI == ppc::FloatABI::Soft && + !(Triple.getArch() == llvm::Triple::ppc64 || + Triple.getArch() == llvm::Triple::ppc64le)) + Features.push_back("+soft-float"); + else if (FloatABI == ppc::FloatABI::Soft && + (Triple.getArch() == llvm::Triple::ppc64 || + Triple.getArch() == llvm::Triple::ppc64le)) + D.Diag(diag::err_drv_invalid_mfloat_abi) + << "soft float is not supported for ppc64"; + + // Altivec is a bit weird, allow overriding of the Altivec feature here. + AddTargetFeature(Args, Features, options::OPT_faltivec, + options::OPT_fno_altivec, "altivec"); +} + +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(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; +} + +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); + } +} + +bool ppc::hasPPCAbiArg(const ArgList &Args, const char *Value) { + Arg *A = Args.getLastArg(options::OPT_mabi_EQ); + return A && (A->getValue() == StringRef(Value)); +} + +/// 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 ""; +} + +void Clang::AddSparcTargetArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + const Driver &D = getToolChain().getDriver(); + std::string Triple = getToolChain().ComputeEffectiveClangTriple(Args); + + bool SoftFloatABI = false; + if (Arg *A = + Args.getLastArg(options::OPT_msoft_float, options::OPT_mhard_float)) { + if (A->getOption().matches(options::OPT_msoft_float)) + SoftFloatABI = true; + } + + // Only the hard-float ABI on Sparc is standardized, and it is the + // default. GCC also supports a nonstandard soft-float ABI mode, and + // perhaps LLVM should implement that, too. However, since llvm + // currently does not support Sparc soft-float, at all, display an + // error if it's requested. + if (SoftFloatABI) { + D.Diag(diag::err_drv_unsupported_opt_for_target) << "-msoft-float" + << Triple; + } +} + +static const char *getSystemZTargetCPU(const ArgList &Args) { + if (const Arg *A = Args.getLastArg(options::OPT_march_EQ)) + return A->getValue(); + return "z10"; +} + +static void getSystemZTargetFeatures(const ArgList &Args, + std::vector<const char *> &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"); + } +} + +static const char *getX86TargetCPU(const ArgList &Args, + const llvm::Triple &Triple) { + if (const Arg *A = Args.getLastArg(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"; + 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"; + } +} + +/// 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"; +} + +static std::string getCPUName(const ArgList &Args, const llvm::Triple &T, + bool FromAs = false) { + switch (T.getArch()) { + default: + return ""; + + case llvm::Triple::aarch64: + case llvm::Triple::aarch64_be: + return getAArch64TargetCPU(Args); + + case llvm::Triple::arm: + case llvm::Triple::armeb: + case llvm::Triple::thumb: + case llvm::Triple::thumbeb: { + StringRef MArch, MCPU; + getARMArchCPUFromArgs(Args, MArch, MCPU, FromAs); + return arm::getARMTargetCPU(MCPU, MArch, T); + } + 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 = 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 getX86TargetCPU(Args, T); + + case llvm::Triple::hexagon: + return "hexagon" + + toolchains::HexagonToolChain::GetTargetCPUVersion(Args).str(); + + case llvm::Triple::systemz: + return getSystemZTargetCPU(Args); + + case llvm::Triple::r600: + case llvm::Triple::amdgcn: + return getR600TargetGPU(Args); + + case llvm::Triple::wasm32: + case llvm::Triple::wasm64: + return getWebAssemblyTargetCPU(Args); + } +} + +static void AddGoldPlugin(const ToolChain &ToolChain, const ArgList &Args, + ArgStringList &CmdArgs, bool IsThinLTO) { + // 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"); +} + +/// 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 getX86TargetFeatures(const Driver &D, const llvm::Triple &Triple, + const ArgList &Args, + std::vector<const char *> &Features) { + // If -march=native, autodetect the feature list. + if (const Arg *A = Args.getLastArg(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("-hle"); + 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); +} + +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; + } + } +} + +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"); +} + +// Decode AArch64 features from string like +[no]featureA+[no]featureB+... +static bool DecodeAArch64Features(const Driver &D, StringRef text, + std::vector<const char *> &Features) { + SmallVector<StringRef, 8> Split; + text.split(Split, StringRef("+"), -1, false); + + for (StringRef Feature : Split) { + const char *result = llvm::StringSwitch<const char *>(Feature) + .Case("fp", "+fp-armv8") + .Case("simd", "+neon") + .Case("crc", "+crc") + .Case("crypto", "+crypto") + .Case("fp16", "+fullfp16") + .Case("profile", "+spe") + .Case("nofp", "-fp-armv8") + .Case("nosimd", "-neon") + .Case("nocrc", "-crc") + .Case("nocrypto", "-crypto") + .Case("nofp16", "-fullfp16") + .Case("noprofile", "-spe") + .Default(nullptr); + if (result) + Features.push_back(result); + else if (Feature == "neon" || Feature == "noneon") + D.Diag(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<const char *> &Features) { + std::pair<StringRef, StringRef> Split = Mcpu.split("+"); + CPU = Split.first; + if (CPU == "cyclone" || CPU == "cortex-a53" || CPU == "cortex-a57" || + CPU == "cortex-a72" || CPU == "cortex-a35") { + Features.push_back("+neon"); + Features.push_back("+crc"); + Features.push_back("+crypto"); + } else if (CPU == "generic") { + Features.push_back("+neon"); + } else { + 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<const char *> &Features) { + std::string MarchLowerCase = March.lower(); + std::pair<StringRef, StringRef> Split = StringRef(MarchLowerCase).split("+"); + + if (Split.first == "armv8-a" || Split.first == "armv8a") { + // ok, no additional features. + } else if (Split.first == "armv8.1-a" || Split.first == "armv8.1a") { + Features.push_back("+v8.1a"); + } else if (Split.first == "armv8.2-a" || Split.first == "armv8.2a" ) { + Features.push_back("+v8.2a"); + } else { + return false; + } + + if (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<const char *> &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<const char *> &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<const char *> &Features) { + StringRef CPU; + std::vector<const char *> DecodedFeature; + std::string McpuLowerCase = Mcpu.lower(); + if (!DecodeAArch64Mcpu(D, McpuLowerCase, CPU, DecodedFeature)) + return false; + + return getAArch64MicroArchFeaturesFromMtune(D, CPU, Args, Features); +} + +static void getAArch64TargetFeatures(const Driver &D, const ArgList &Args, + std::vector<const char *> &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), Args, + Features); + + if (success && (A = Args.getLastArg(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 (Args.hasArg(options::OPT_arch)) + success = getAArch64MicroArchFeaturesFromMcpu(D, getAArch64TargetCPU(Args), + 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"); +} + +static void getHexagonTargetFeatures(const ArgList &Args, + std::vector<const char *> &Features) { + bool HasHVX = false, HasHVXD = false; + + // FIXME: This should be able to use handleTargetFeaturesGroup except it is + // doing dependent option handling here rather than in initFeatureMap or a + // similar handler. + for (auto &A : Args) { + auto &Opt = A->getOption(); + if (Opt.matches(options::OPT_mhexagon_hvx)) + HasHVX = true; + else if (Opt.matches(options::OPT_mno_hexagon_hvx)) + HasHVXD = HasHVX = false; + else if (Opt.matches(options::OPT_mhexagon_hvx_double)) + HasHVXD = HasHVX = true; + else if (Opt.matches(options::OPT_mno_hexagon_hvx_double)) + HasHVXD = false; + else + continue; + A->claim(); + } + + Features.push_back(HasHVX ? "+hvx" : "-hvx"); + Features.push_back(HasHVXD ? "+hvx-double" : "-hvx-double"); +} + +static void getWebAssemblyTargetFeatures(const ArgList &Args, + std::vector<const char *> &Features) { + handleTargetFeaturesGroup(Args, Features, options::OPT_m_wasm_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<const char *> Features; + switch (Triple.getArch()) { + default: + break; + case llvm::Triple::mips: + case llvm::Triple::mipsel: + case llvm::Triple::mips64: + case llvm::Triple::mips64el: + getMIPSTargetFeatures(D, Triple, Args, Features); + break; + + case llvm::Triple::arm: + case llvm::Triple::armeb: + case llvm::Triple::thumb: + case llvm::Triple::thumbeb: + getARMTargetFeatures(TC, Triple, Args, Features, ForAS); + break; + + case llvm::Triple::ppc: + case llvm::Triple::ppc64: + case llvm::Triple::ppc64le: + getPPCTargetFeatures(D, Triple, Args, Features); + break; + case llvm::Triple::systemz: + getSystemZTargetFeatures(Args, Features); + break; + case llvm::Triple::aarch64: + case llvm::Triple::aarch64_be: + getAArch64TargetFeatures(D, Args, Features); + break; + case llvm::Triple::x86: + case llvm::Triple::x86_64: + 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; + } + + // Find the last of each feature. + llvm::StringMap<unsigned> LastOpt; + for (unsigned I = 0, N = Features.size(); I < N; ++I) { + const char *Name = Features[I]; + assert(Name[0] == '-' || Name[0] == '+'); + LastOpt[Name + 1] = I; + } + + for (unsigned I = 0, N = Features.size(); I < N; ++I) { + // If this feature was overridden, ignore it. + const char *Name = Features[I]; + llvm::StringMap<unsigned>::iterator LastI = LastOpt.find(Name + 1); + assert(LastI != LastOpt.end()); + unsigned Last = LastI->second; + if (Last != I) + continue; + + CmdArgs.push_back("-target-feature"); + CmdArgs.push_back(Name); + } +} + +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, PS4, and MSVC. + // FIXME: Remove MSVC from this list once things work. + bool CXXExceptionsEnabled = Triple.getArch() != llvm::Triple::xcore && + !Triple.isPS4CPU() && + !Triple.isWindowsMSVCEnvironment(); + 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; +} + +/// \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 &Act : *A) + if (ContainsCompileAction(Act)) + 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); +} + +// 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; +} + +// 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 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"); + + // 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; + + // When using an integrated assembler, translate -Wa, and -Xassembler + // options. + bool CompressDebugSections = false; + 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; + } + + 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; + } + break; + } + + 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 == "-compress-debug-sections" || + Value == "--compress-debug-sections") { + CompressDebugSections = true; + } else if (Value == "-nocompress-debug-sections" || + Value == "--nocompress-debug-sections") { + CompressDebugSections = 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 { + D.Diag(diag::err_drv_unsupported_option_argument) + << A->getOption().getName() << Value; + } + } + } + if (CompressDebugSections) { + if (llvm::zlib::isAvailable()) + CmdArgs.push_back("-compress-debug-sections"); + else + D.Diag(diag::warn_debug_compression_unavailable); + } +} + +// This adds the static libclang_rt.builtins-arch.a directly to the command line +// FIXME: Make sure we can also emit shared objects if they're requested +// and available, check for possible errors, etc. +static void addClangRT(const ToolChain &TC, const ArgList &Args, + ArgStringList &CmdArgs) { + CmdArgs.push_back(TC.getCompilerRTArgString(Args, "builtins")); +} + +namespace { +enum OpenMPRuntimeKind { + /// An unknown OpenMP runtime. We can't generate effective OpenMP code + /// without knowing what runtime to target. + OMPRT_Unknown, + + /// The LLVM OpenMP runtime. When completed and integrated, this will become + /// the default for Clang. + OMPRT_OMP, + + /// The GNU OpenMP runtime. Clang doesn't support generating OpenMP code for + /// this runtime but can swallow the pragmas, and find and link against the + /// runtime library itself. + OMPRT_GOMP, + + /// The legacy name for the LLVM OpenMP runtime from when it was the Intel + /// OpenMP runtime. We support this mode for users with existing dependencies + /// on this runtime library name. + OMPRT_IOMP5 +}; +} + +/// Compute the desired OpenMP runtime from the flag provided. +static OpenMPRuntimeKind getOpenMPRuntime(const ToolChain &TC, + const ArgList &Args) { + StringRef RuntimeName(CLANG_DEFAULT_OPENMP_RUNTIME); + + const Arg *A = Args.getLastArg(options::OPT_fopenmp_EQ); + if (A) + RuntimeName = A->getValue(); + + auto RT = llvm::StringSwitch<OpenMPRuntimeKind>(RuntimeName) + .Case("libomp", OMPRT_OMP) + .Case("libgomp", OMPRT_GOMP) + .Case("libiomp5", OMPRT_IOMP5) + .Default(OMPRT_Unknown); + + if (RT == OMPRT_Unknown) { + if (A) + TC.getDriver().Diag(diag::err_drv_unsupported_option_argument) + << A->getOption().getName() << A->getValue(); + else + // FIXME: We could use a nicer diagnostic here. + TC.getDriver().Diag(diag::err_drv_unsupported_opt) << "-fopenmp"; + } + + return RT; +} + +static void addOpenMPRuntime(ArgStringList &CmdArgs, const ToolChain &TC, + const ArgList &Args) { + if (!Args.hasFlag(options::OPT_fopenmp, options::OPT_fopenmp_EQ, + options::OPT_fno_openmp, false)) + return; + + switch (getOpenMPRuntime(TC, Args)) { + case OMPRT_OMP: + CmdArgs.push_back("-lomp"); + break; + case OMPRT_GOMP: + CmdArgs.push_back("-lgomp"); + break; + case OMPRT_IOMP5: + CmdArgs.push_back("-liomp5"); + break; + case OMPRT_Unknown: + // Already diagnosed. + break; + } +} + +static void addSanitizerRuntime(const ToolChain &TC, const ArgList &Args, + ArgStringList &CmdArgs, StringRef Sanitizer, + bool IsShared) { + // Static runtimes must be forced into executable, so we wrap them in + // whole-archive. + if (!IsShared) CmdArgs.push_back("-whole-archive"); + CmdArgs.push_back(TC.getCompilerRTArgString(Args, Sanitizer, IsShared)); + if (!IsShared) CmdArgs.push_back("-no-whole-archive"); +} + +// 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; +} + +static void 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"); + CmdArgs.push_back("-lpthread"); + CmdArgs.push_back("-lrt"); + CmdArgs.push_back("-lm"); + // There's no libdl on FreeBSD. + if (TC.getTriple().getOS() != llvm::Triple::FreeBSD) + CmdArgs.push_back("-ldl"); +} + +static void +collectSanitizerRuntimes(const ToolChain &TC, const ArgList &Args, + SmallVectorImpl<StringRef> &SharedRuntimes, + SmallVectorImpl<StringRef> &StaticRuntimes, + SmallVectorImpl<StringRef> &HelperStaticRuntimes) { + const SanitizerArgs &SanArgs = TC.getSanitizerArgs(); + // Collect shared runtimes. + if (SanArgs.needsAsanRt() && SanArgs.needsSharedAsanRt()) { + SharedRuntimes.push_back("asan"); + } + + // 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()) + StaticRuntimes.push_back("safestack"); + if (SanArgs.needsCfiRt()) + StaticRuntimes.push_back("cfi"); + if (SanArgs.needsCfiDiagRt()) + StaticRuntimes.push_back("cfi_diag"); +} + +// 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. +static bool addSanitizerRuntimes(const ToolChain &TC, const ArgList &Args, + ArgStringList &CmdArgs) { + SmallVector<StringRef, 4> SharedRuntimes, StaticRuntimes, + HelperStaticRuntimes; + collectSanitizerRuntimes(TC, Args, SharedRuntimes, StaticRuntimes, + HelperStaticRuntimes); + for (auto RT : SharedRuntimes) + addSanitizerRuntime(TC, Args, CmdArgs, RT, true); + for (auto RT : HelperStaticRuntimes) + addSanitizerRuntime(TC, Args, CmdArgs, RT, false); + bool AddExportDynamic = false; + for (auto RT : StaticRuntimes) { + addSanitizerRuntime(TC, Args, CmdArgs, RT, false); + AddExportDynamic |= !addSanitizerDynamicList(TC, Args, CmdArgs, RT); + } + // 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"); + return !StaticRuntimes.empty(); +} + +static bool 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; +} + +static bool shouldUseFramePointerForTarget(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()) { + 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::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::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); + if (Args.hasArg(options::OPT_pg)) + return true; + + return shouldUseFramePointerForTarget(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 shouldUseFramePointerForTarget(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)); + } +} + +static const char *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); + } +} + +static void 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(Output.getFilename(), types::TY_Object, 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)); +} + +/// \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 + CmdArgs.push_back(types::getTypeName(Input.getType())); +} + +static VersionTuple getMSCompatibilityVersion(unsigned Version) { + if (Version < 100) + return VersionTuple(Version); + + if (Version < 10000) + return VersionTuple(Version / 100, Version % 100); + + unsigned Build = 0, Factor = 1; + for (; Version > 10000; Version = Version / 10, Factor = Factor * 10) + Build = Build + (Version % 10) * Factor; + return VersionTuple(Version / 100, Version % 100, Build); +} + +// 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. +static void 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); +} + +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 (!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()); +} + +VersionTuple visualstudio::getMSVCVersion(const Driver *D, + const llvm::Triple &Triple, + const llvm::opt::ArgList &Args, + bool IsWindowsMSVC) { + if (Args.hasFlag(options::OPT_fms_extensions, options::OPT_fno_ms_extensions, + IsWindowsMSVC) || + Args.hasArg(options::OPT_fmsc_version) || + Args.hasArg(options::OPT_fms_compatibility_version)) { + const Arg *MSCVersion = Args.getLastArg(options::OPT_fmsc_version); + const Arg *MSCompatibilityVersion = + Args.getLastArg(options::OPT_fms_compatibility_version); + + if (MSCVersion && MSCompatibilityVersion) { + if (D) + D->Diag(diag::err_drv_argument_not_allowed_with) + << MSCVersion->getAsString(Args) + << MSCompatibilityVersion->getAsString(Args); + return VersionTuple(); + } + + if (MSCompatibilityVersion) { + VersionTuple MSVT; + if (MSVT.tryParse(MSCompatibilityVersion->getValue()) && D) + D->Diag(diag::err_drv_invalid_value) + << MSCompatibilityVersion->getAsString(Args) + << MSCompatibilityVersion->getValue(); + return MSVT; + } + + if (MSCVersion) { + unsigned Version = 0; + if (StringRef(MSCVersion->getValue()).getAsInteger(10, Version) && D) + D->Diag(diag::err_drv_invalid_value) << MSCVersion->getAsString(Args) + << MSCVersion->getValue(); + return getMSCompatibilityVersion(Version); + } + + unsigned Major, Minor, Micro; + Triple.getEnvironmentVersion(Major, Minor, Micro); + if (Major || Minor || Micro) + return VersionTuple(Major, Minor, Micro); + + return VersionTuple(18); + } + return VersionTuple(); +} + +static void addPGOAndCoverageFlags(Compilation &C, const Driver &D, + const InputInfo &Output, const ArgList &Args, + ArgStringList &CmdArgs) { + auto *ProfileGenerateArg = Args.getLastArg( + options::OPT_fprofile_instr_generate, + options::OPT_fprofile_instr_generate_EQ, options::OPT_fprofile_generate, + options::OPT_fprofile_generate_EQ, + options::OPT_fno_profile_instr_generate); + if (ProfileGenerateArg && + ProfileGenerateArg->getOption().matches( + options::OPT_fno_profile_instr_generate)) + ProfileGenerateArg = nullptr; + + 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; + + 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)) + ProfileGenerateArg->render(Args, CmdArgs); + else if (ProfileGenerateArg->getOption().matches( + options::OPT_fprofile_generate_EQ)) { + SmallString<128> Path(ProfileGenerateArg->getValue()); + llvm::sys::path::append(Path, "default.profraw"); + CmdArgs.push_back( + Args.MakeArgString(Twine("-fprofile-instr-generate=") + Path)); + } else + Args.AddAllArgs(CmdArgs, options::OPT_fprofile_instr_generate); + } + + if (ProfileUseArg) { + if (ProfileUseArg->getOption().matches(options::OPT_fprofile_instr_use_EQ)) + ProfileUseArg->render(Args, CmdArgs); + 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-instr-use=") + 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) && + !ProfileGenerateArg) + D.Diag(diag::err_drv_argument_only_allowed_with) + << "-fcoverage-mapping" + << "-fprofile-instr-generate"; + + if (Args.hasFlag(options::OPT_fcoverage_mapping, + options::OPT_fno_coverage_mapping, false)) + 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-file"); + SmallString<128> CoverageFilename; + if (Arg *FinalOutput = C.getArgs().getLastArg(options::OPT_o)) { + CoverageFilename = FinalOutput->getValue(); + } else { + CoverageFilename = llvm::sys::path::filename(Output.getBaseInput()); + } + 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); + } + } + CmdArgs.push_back(Args.MakeArgString(CoverageFilename)); + } + } +} + +static void addPS4ProfileRTArgs(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"); +} + +/// 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). +static std::tuple<llvm::Reloc::Model, unsigned, bool> +ParsePICArgs(const ToolChain &ToolChain, const llvm::Triple &Triple, + const ArgList &Args) { + // FIXME: why does this code...and so much everywhere else, use both + // ToolChain.getTriple() and Triple? + bool PIE = ToolChain.isPIEDefault(); + bool PIC = PIE || ToolChain.isPICDefault(); + // The Darwin default to use PIC does not apply when using -static. + if (ToolChain.getTriple().isOSDarwin() && 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 (ToolChain.getTriple().isAndroid()) { + switch (ToolChain.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 (ToolChain.getTriple().getOS() == llvm::Triple::OpenBSD) { + switch (ToolChain.getArch()) { + case llvm::Triple::mips64: + case llvm::Triple::mips64el: + case llvm::Triple::sparcel: + case llvm::Triple::x86: + case llvm::Triple::x86_64: + IsPICLevelTwo = false; // "-fpie" + break; + + case llvm::Triple::ppc: + case llvm::Triple::sparc: + 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); + // 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 (Triple.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 && (ToolChain.getTriple().isOSDarwin() || Triple.isPS4CPU())) + IsPICLevelTwo |= ToolChain.isPICDefault(); + + // This kernel flags are a trump-card: they will disable PIC/PIE + // generation, independent of the argument order. + if (KernelOrKext && ((!Triple.isiOS() || Triple.isOSVersionLT(6)) && + !Triple.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 (!ToolChain.getTriple().isOSDarwin()) + ToolChain.getDriver().Diag(diag::err_drv_unsupported_opt_for_target) + << A->getSpelling() << ToolChain.getTriple().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 ? 2 : 0, false); + } + + if (PIC) + return std::make_tuple(llvm::Reloc::PIC_, IsPICLevelTwo ? 2 : 1, PIE); + + return std::make_tuple(llvm::Reloc::Static, 0, false); +} + +static const char *RelocationModelName(llvm::Reloc::Model Model) { + switch (Model) { + case llvm::Reloc::Default: + return nullptr; + case llvm::Reloc::Static: + return "static"; + case llvm::Reloc::PIC_: + return "pic"; + case llvm::Reloc::DynamicNoPIC: + return "dynamic-no-pic"; + } + llvm_unreachable("Unknown Reloc::Model kind"); +} + +static void AddAssemblerKPIC(const ToolChain &ToolChain, const ArgList &Args, + ArgStringList &CmdArgs) { + llvm::Reloc::Model RelocationModel; + unsigned PICLevel; + bool IsPIE; + std::tie(RelocationModel, PICLevel, IsPIE) = + ParsePICArgs(ToolChain, ToolChain.getTriple(), Args); + + if (RelocationModel != llvm::Reloc::Static) + CmdArgs.push_back("-KPIC"); +} + +void Clang::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, const InputInfoList &Inputs, + const ArgList &Args, const char *LinkingOutput) const { + std::string TripleStr = getToolChain().ComputeEffectiveClangTriple(Args); + const llvm::Triple Triple(TripleStr); + + bool KernelOrKext = + Args.hasArg(options::OPT_mkernel, options::OPT_fapple_kext); + const Driver &D = getToolChain().getDriver(); + ArgStringList CmdArgs; + + bool IsWindowsGNU = getToolChain().getTriple().isWindowsGNUEnvironment(); + bool IsWindowsCygnus = + getToolChain().getTriple().isWindowsCygwinEnvironment(); + bool IsWindowsMSVC = getToolChain().getTriple().isWindowsMSVCEnvironment(); + bool IsPS4CPU = getToolChain().getTriple().isPS4CPU(); + + // 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). All other jobs are expected to have exactly one + // input. + bool IsCuda = types::isCuda(Input.getType()); + assert((IsCuda || Inputs.size() == 1) && "Unable to handle multiple inputs."); + + // 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)); + + const ToolChain *AuxToolChain = nullptr; + if (IsCuda) { + // FIXME: We need a (better) way to pass information about + // particular compilation pass we're constructing here. For now we + // can check which toolchain we're using and pick the other one to + // extract the triple. + if (&getToolChain() == C.getCudaDeviceToolChain()) + AuxToolChain = C.getCudaHostToolChain(); + else if (&getToolChain() == C.getCudaHostToolChain()) + AuxToolChain = C.getCudaDeviceToolChain(); + else + llvm_unreachable("Can't figure out CUDA compilation mode."); + assert(AuxToolChain != nullptr && "No aux toolchain."); + CmdArgs.push_back("-aux-triple"); + CmdArgs.push_back(Args.MakeArgString(AuxToolChain->getTriple().str())); + CmdArgs.push_back("-fcuda-target-overloads"); + CmdArgs.push_back("-fcuda-disable-target-call-checks"); + } + + 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 (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); + } + + 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); + } + + // 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"); +#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"); + + if (!IsWindowsMSVC) + CmdArgs.push_back("-analyzer-checker=unix"); + + 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"); + + // Enable the following experimental checkers for testing. + 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(), Triple, Args); + + const char *RMName = RelocationModelName(RelocationModel); + 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("-pie-level"); + CmdArgs.push_back(PICLevel == 1 ? "1" : "2"); + } + } + + 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)) { + 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 (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("-mrtd"); + + 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_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"); + + // If -Ofast is the optimization level, then -ffast-math should be enabled. + // This alias option is being used to simplify the getLastArg logic. + OptSpecifier FastMathAliasOption = + OFastEnabled ? options::OPT_Ofast : options::OPT_ffast_math; + + // Handle various floating point optimization flags, mapping them to the + // appropriate LLVM code generation flags. The pattern for all of these is to + // default off the codegen optimizations, and if any flag enables them and no + // flag disables them after the flag enabling them, enable the codegen + // optimization. This is complicated by several "umbrella" flags. + if (Arg *A = Args.getLastArg( + options::OPT_ffast_math, FastMathAliasOption, + options::OPT_fno_fast_math, options::OPT_ffinite_math_only, + options::OPT_fno_finite_math_only, options::OPT_fhonor_infinities, + options::OPT_fno_honor_infinities)) + if (A->getOption().getID() != options::OPT_fno_fast_math && + A->getOption().getID() != options::OPT_fno_finite_math_only && + A->getOption().getID() != options::OPT_fhonor_infinities) + CmdArgs.push_back("-menable-no-infs"); + if (Arg *A = Args.getLastArg( + options::OPT_ffast_math, FastMathAliasOption, + options::OPT_fno_fast_math, options::OPT_ffinite_math_only, + options::OPT_fno_finite_math_only, options::OPT_fhonor_nans, + options::OPT_fno_honor_nans)) + if (A->getOption().getID() != options::OPT_fno_fast_math && + A->getOption().getID() != options::OPT_fno_finite_math_only && + A->getOption().getID() != options::OPT_fhonor_nans) + CmdArgs.push_back("-menable-no-nans"); + + // -fmath-errno is the default on some platforms, e.g. BSD-derived OSes. + bool MathErrno = getToolChain().IsMathErrnoDefault(); + if (Arg *A = + Args.getLastArg(options::OPT_ffast_math, FastMathAliasOption, + options::OPT_fno_fast_math, options::OPT_fmath_errno, + options::OPT_fno_math_errno)) { + // 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). + if (A->getOption().getID() == options::OPT_fno_math_errno || + A->getOption().getID() == options::OPT_ffast_math || + A->getOption().getID() == options::OPT_Ofast) + MathErrno = false; + else if (A->getOption().getID() == options::OPT_fmath_errno) + MathErrno = true; + } + if (MathErrno) + CmdArgs.push_back("-fmath-errno"); + + // There are several flags which require disabling very specific + // optimizations. Any of these being disabled forces us to turn off the + // entire set of LLVM optimizations, so collect them through all the flag + // madness. + bool AssociativeMath = false; + if (Arg *A = Args.getLastArg( + options::OPT_ffast_math, FastMathAliasOption, + options::OPT_fno_fast_math, options::OPT_funsafe_math_optimizations, + options::OPT_fno_unsafe_math_optimizations, + options::OPT_fassociative_math, options::OPT_fno_associative_math)) + if (A->getOption().getID() != options::OPT_fno_fast_math && + A->getOption().getID() != options::OPT_fno_unsafe_math_optimizations && + A->getOption().getID() != options::OPT_fno_associative_math) + AssociativeMath = true; + bool ReciprocalMath = false; + if (Arg *A = Args.getLastArg( + options::OPT_ffast_math, FastMathAliasOption, + options::OPT_fno_fast_math, options::OPT_funsafe_math_optimizations, + options::OPT_fno_unsafe_math_optimizations, + options::OPT_freciprocal_math, options::OPT_fno_reciprocal_math)) + if (A->getOption().getID() != options::OPT_fno_fast_math && + A->getOption().getID() != options::OPT_fno_unsafe_math_optimizations && + A->getOption().getID() != options::OPT_fno_reciprocal_math) + ReciprocalMath = true; + bool SignedZeros = true; + if (Arg *A = Args.getLastArg( + options::OPT_ffast_math, FastMathAliasOption, + options::OPT_fno_fast_math, options::OPT_funsafe_math_optimizations, + options::OPT_fno_unsafe_math_optimizations, + options::OPT_fsigned_zeros, options::OPT_fno_signed_zeros)) + if (A->getOption().getID() != options::OPT_fno_fast_math && + A->getOption().getID() != options::OPT_fno_unsafe_math_optimizations && + A->getOption().getID() != options::OPT_fsigned_zeros) + SignedZeros = false; + bool TrappingMath = true; + if (Arg *A = Args.getLastArg( + options::OPT_ffast_math, FastMathAliasOption, + options::OPT_fno_fast_math, options::OPT_funsafe_math_optimizations, + options::OPT_fno_unsafe_math_optimizations, + options::OPT_ftrapping_math, options::OPT_fno_trapping_math)) + if (A->getOption().getID() != options::OPT_fno_fast_math && + A->getOption().getID() != options::OPT_fno_unsafe_math_optimizations && + A->getOption().getID() != options::OPT_ftrapping_math) + TrappingMath = false; + 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"); + + // Validate and pass through -fp-contract option. + if (Arg *A = Args.getLastArg(options::OPT_ffast_math, FastMathAliasOption, + options::OPT_fno_fast_math, + options::OPT_ffp_contract)) { + if (A->getOption().getID() == options::OPT_ffp_contract) { + StringRef Val = A->getValue(); + if (Val == "fast" || Val == "on" || Val == "off") { + CmdArgs.push_back(Args.MakeArgString("-ffp-contract=" + Val)); + } else { + D.Diag(diag::err_drv_unsupported_option_argument) + << A->getOption().getName() << Val; + } + } else if (A->getOption().matches(options::OPT_ffast_math) || + (OFastEnabled && A->getOption().matches(options::OPT_Ofast))) { + // If fast-math is set then set the fp-contract mode to fast. + CmdArgs.push_back(Args.MakeArgString("-ffp-contract=fast")); + } + } + + ParseMRecip(getToolChain().getDriver(), Args, CmdArgs); + + // We separately look for the '-ffast-math' and '-ffinite-math-only' flags, + // and if we find them, tell the frontend to provide the appropriate + // preprocessor macros. This is distinct from enabling any optimizations as + // these options induce language changes which must survive serialization + // and deserialization, etc. + if (Arg *A = Args.getLastArg(options::OPT_ffast_math, FastMathAliasOption, + options::OPT_fno_fast_math)) + if (!A->getOption().matches(options::OPT_fno_fast_math)) + CmdArgs.push_back("-ffast-math"); + if (Arg *A = Args.getLastArg(options::OPT_ffinite_math_only, + options::OPT_fno_fast_math)) + if (A->getOption().matches(options::OPT_ffinite_math_only)) + 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>. + if (!getToolChain().getTriple().isOSDarwin()) + 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"); + } + + // 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() || + 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); + + 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::x86: + case llvm::Triple::x86_64: + AddX86TargetArgs(Args, CmdArgs); + break; + + case llvm::Triple::hexagon: + AddHexagonTargetArgs(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. + enum CodeGenOptions::DebugInfoKind DebugInfoKind = + CodeGenOptions::NoDebugInfo; + bool EmitCodeView = false; + + // Add clang-cl arguments. + if (getToolChain().getDriver().IsCLMode()) + AddClangCLArgs(Args, 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. + types::ID InputType = Input.getType(); + 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(); + } + } + + 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 + : "-"); + } + + 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.) + if (SplitDwarfArg && DebugInfoKind < CodeGenOptions::LimitedDebugInfo && + A->getIndex() > SplitDwarfArg->getIndex()) + SplitDwarfArg = nullptr; + } 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 flags -gstrict-dwarf and -grecord-gcc-switches for now. + Args.ClaimAllArgs(options::OPT_g_flags_Group); + + // PS4 defaults to no column info + if (Args.hasFlag(options::OPT_gcolumn_info, options::OPT_gno_column_info, + /*Default=*/ !IsPS4CPU)) + CmdArgs.push_back("-dwarf-column-info"); + + // FIXME: Move backend command line options to the module. + if (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() && SplitDwarfArg) { + DebugInfoKind = CodeGenOptions::LimitedDebugInfo; + CmdArgs.push_back("-backend-option"); + CmdArgs.push_back("-split-dwarf=Enable"); + } + + // 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); + + // -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"); + } + + // CloudABI uses -ffunction-sections and -fdata-sections by default. + bool UseSeparateSections = Triple.getOS() == llvm::Triple::CloudABI; + + 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); + + // Add runtime flag for PS4 when PGO or Coverage are enabled. + if (getToolChain().getTriple().isPS4CPU()) + addPS4ProfileRTArgs(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, + AuxToolChain); + + // 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(); + } + + 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. + if (Args.hasFlag(options::OPT_ffreestanding, options::OPT_fhosted, false) || + KernelOrKext) + CmdArgs.push_back("-ffreestanding"); + + // 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 can be enabled manually + // with -femulated-tls. + bool EmulatedTLSDefault = Triple.isAndroid(); + 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_faltivec); + 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 + if (Args.hasFlag(options::OPT_fopenmp, options::OPT_fopenmp_EQ, + options::OPT_fno_openmp, false)) + switch (getOpenMPRuntime(getToolChain(), Args)) { + case OMPRT_OMP: + case 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"); + 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); + + // Report an error for -faltivec on anything other than PowerPC. + if (const Arg *A = Args.getLastArg(options::OPT_faltivec)) { + const llvm::Triple::ArchType Arch = getToolChain().getArch(); + if (!(Arch == llvm::Triple::ppc || Arch == llvm::Triple::ppc64 || + Arch == llvm::Triple::ppc64le)) + D.Diag(diag::err_drv_argument_only_allowed_with) << A->getAsString(Args) + << "ppc/ppc64/ppc64le"; + } + + // -fzvector is incompatible with -faltivec. + if (Arg *A = Args.getLastArg(options::OPT_fzvector)) + if (Args.hasArg(options::OPT_faltivec)) + D.Diag(diag::err_drv_argument_not_allowed_with) << A->getAsString(Args) + << "-faltivec"; + + if (getToolChain().SupportsProfiling()) + Args.AddLastArg(CmdArgs, options::OPT_pg); + + // -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; + if (getToolChain().getSanitizerArgs().needsSafeStackRt()) { + Args.ClaimAllArgs(options::OPT_fno_stack_protector); + Args.ClaimAllArgs(options::OPT_fstack_protector_all); + Args.ClaimAllArgs(options::OPT_fstack_protector_strong); + Args.ClaimAllArgs(options::OPT_fstack_protector); + } else 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); + } + 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 -f options with positive and negative forms; we translate + // these by hand. + if (Arg *A = Args.getLastArg(options::OPT_fprofile_sample_use_EQ)) { + StringRef fname = A->getValue(); + if (!llvm::sys::fs::exists(fname)) + D.Diag(diag::err_drv_no_such_file) << fname; + else + A->render(Args, CmdArgs); + } + + // -fbuiltin is default unless -mkernel is used + if (!Args.hasFlag(options::OPT_fbuiltin, options::OPT_fno_builtin, + !Args.hasArg(options::OPT_mkernel))) + CmdArgs.push_back("-fno-builtin"); + + 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"); + } + + // -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 HaveModules = 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"); + HaveModules = true; + } + } + + // -fmodule-maps enables implicit reading of module map files. By default, + // this is enabled if we are using precompiled modules. + if (Args.hasFlag(options::OPT_fimplicit_module_maps, + options::OPT_fno_implicit_module_maps, HaveModules)) { + 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)) { + CmdArgs.push_back("-fno-implicit-modules"); + } + + // -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); + + // -fmodule-map-file can be used to specify files containing module + // definitions. + Args.AddAllArgs(CmdArgs, options::OPT_fmodule_map_file); + + // -fmodule-file can be used to specify files containing precompiled modules. + if (HaveModules) + Args.AddAllArgs(CmdArgs, options::OPT_fmodule_file); + else + Args.ClaimAllArgs(options::OPT_fmodule_file); + + // -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 (HaveModules) { + 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)); + } + + // When building modules and generating crashdumps, we need to dump a module + // dependency VFS alongside the output. + if (HaveModules && 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 (HaveModules) + 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().toEpochTime()))); + } + + 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); + + // -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"); + + // -fms-compatibility-version=18.00 is default. + VersionTuple MSVT = visualstudio::getMSVCVersion( + &D, getToolChain().getTriple(), Args, IsWindowsMSVC); + if (!MSVT.empty()) + CmdArgs.push_back( + Args.MakeArgString("-fms-compatibility-version=" + MSVT.getAsString())); + + bool IsMSVC2015Compatible = MSVT.getMajor() >= 19; + if (ImplyVCPPCXXVer) { + if (IsMSVC2015Compatible) + CmdArgs.push_back("-std=c++14"); + else + CmdArgs.push_back("-std=c++11"); + } + + // -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 (Args.hasArg(options::OPT_fno_inline_functions)) + CmdArgs.push_back("-fno-inline-functions"); + + ObjCRuntime objcRuntime = AddObjCRuntimeArgs(Args, CmdArgs, rewriteKind); + + // -fobjc-dispatch-method is only relevant with the nonfragile-abi, and + // legacy is the default. Except for deployment taget 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"); + + } + + // -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"); + + // Handle -fobjc-gc and -fobjc-gc-only. They are exclusive, and -fobjc-gc-only + // takes precedence. + const Arg *GCArg = Args.getLastArg(options::OPT_fobjc_gc_only); + if (!GCArg) + GCArg = Args.getLastArg(options::OPT_fobjc_gc); + if (GCArg) { + if (ARC) { + D.Diag(diag::err_drv_objc_gc_arr) << GCArg->getAsString(Args); + } else if (getToolChain().SupportsObjCGC()) { + GCArg->render(Args, CmdArgs); + } else { + // FIXME: We should move this to a hard error. + D.Diag(diag::warn_drv_objc_gc_unsupported) << GCArg->getAsString(Args); + } + } + + // 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 (GCArg) { + if (WeakArg->getOption().matches(options::OPT_fobjc_weak)) + D.Diag(diag::err_objc_weak_with_gc); + } 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 (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"); + + // -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"); + + // -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 != "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 != "UTF-8") + D.Diag(diag::err_drv_invalid_value) << execCharset->getAsString(Args) + << value; + } + + // -fcaret-diagnostics is default. + if (!Args.hasFlag(options::OPT_fcaret_diagnostics, + options::OPT_fno_caret_diagnostics, true)) + 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 (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 the default, unless the terminal doesn't support + // them. + // Support both clang's -f[no-]color-diagnostics and gcc's + // -f[no-]diagnostics-colors[=never|always|auto]. + enum { Colors_On, Colors_Off, Colors_Auto } ShowColors = Colors_Auto; + for (const auto &Arg : Args) { + const Option &O = Arg->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; + + Arg->claim(); + if (O.matches(options::OPT_fcolor_diagnostics) || + O.matches(options::OPT_fdiagnostics_color)) { + ShowColors = Colors_On; + } else if (O.matches(options::OPT_fno_color_diagnostics) || + O.matches(options::OPT_fno_diagnostics_color)) { + ShowColors = Colors_Off; + } else { + assert(O.matches(options::OPT_fdiagnostics_color_EQ)); + StringRef value(Arg->getValue()); + if (value == "always") + ShowColors = Colors_On; + else if (value == "never") + ShowColors = Colors_Off; + else if (value == "auto") + ShowColors = Colors_Auto; + else + getToolChain().getDriver().Diag(diag::err_drv_clang_unsupported) + << ("-fdiagnostics-color=" + value).str(); + } + } + if (ShowColors == Colors_On || + (ShowColors == Colors_Auto && llvm::sys::Process::StandardErrHasColors())) + 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.hasFlag(options::OPT_fshow_column, options::OPT_fno_show_column, + true)) + 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"); + + // -fno-slp-vectorize-aggressive is default. + if (Args.hasFlag(options::OPT_fslp_vectorize_aggressive, + options::OPT_fno_slp_vectorize_aggressive, false)) + CmdArgs.push_back("-vectorize-slp-aggressive"); + + if (Arg *A = Args.getLastArg(options::OPT_fshow_overloads_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"); + } + +// Default to -fno-builtin-str{cat,cpy} on Darwin for ARM. +// +// FIXME: This is disabled until clang -cc1 supports -fno-builtin-foo. PR4941. +#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 + + // 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() && !HaveModules)) + 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(); + } + + // Forward -Xclang arguments to -cc1, and -mllvm arguments to the LLVM option + // parser. + 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. + 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. + if (C.getDriver().isSaveTempsEnabled() && 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. + if (getToolChain().UseDwarfDebugFlags()) { + 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()); + } + + // 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 { + 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 && !isa<CompileJobAction>(JA) && !isa<BackendJobAction>(JA)) + 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); +} + +/// 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 { + EHFlags() : Synch(false), Asynch(false), NoExceptC(false) {} + bool Synch; + bool Asynch; + bool NoExceptC; +}; +} // 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 noexcept. This +/// modifier is an optimization, so we ignore it for now. +/// 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); + continue; + case 'c': + EH.NoExceptC = maybeConsumeDash(EHVal, I); + continue; + case 's': + EH.Synch = maybeConsumeDash(EHVal, I); + continue; + default: + break; + } + D.Diag(clang::diag::err_drv_invalid_value) << "/EH" << EHVal; + break; + } + } + + return EH; +} + +void Clang::AddClangCLArgs(const ArgList &Args, ArgStringList &CmdArgs, + enum 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"); + FlagForCRT = "--dependent-lib=libcmt"; + break; + case options::OPT__SLASH_MTd: + CmdArgs.push_back("-D_DEBUG"); + CmdArgs.push_back("-D_MT"); + 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"); + + // Emit CodeView if -Z7 is present. + *EmitCodeView = Args.hasArg(options::OPT__SLASH_Z7); + bool EmitDwarf = Args.hasArg(options::OPT_gdwarf); + // If we are emitting CV but not DWARF, don't build information that LLVM + // can't yet process. + if (*EmitCodeView && !EmitDwarf) + *DebugInfoKind = CodeGenOptions::DebugLineTablesOnly; + if (*EmitCodeView) + CmdArgs.push_back("-gcodeview"); + + const Driver &D = getToolChain().getDriver(); + EHFlags EH = parseClangCLEHFlags(D, Args); + // FIXME: Do something with NoExceptC. + if (EH.Synch || EH.Asynch) { + CmdArgs.push_back("-fcxx-exceptions"); + CmdArgs.push_back("-fexceptions"); + } + + // /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"); + } + + 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(); +} + +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::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]; + + std::string TripleStr = + getToolChain().ComputeEffectiveClangTriple(Args, Input.getType()); + const llvm::Triple Triple(TripleStr); + + // 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. + if (SourceAction->getType() == types::TY_Asm || + SourceAction->getType() == types::TY_PP_Asm) { + 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(); + RenderDebugEnablingArgs(Args, CmdArgs, + (WantDebug ? CodeGenOptions::LimitedDebugInfo + : CodeGenOptions::NoDebugInfo), + DwarfVersion, llvm::DebuggerKind::Default); + + // 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); + } + + // 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(), Triple, 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; + } + + // 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 + for (const Arg *A : Args.filtered(options::OPT_W_Group)) + A->claim(); + + 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)); +} + +void GnuTool::anchor() {} + +void 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())) { + // 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; + + // 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(); + 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(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 gcc::Preprocessor::RenderExtraToolArgs(const JobAction &JA, + ArgStringList &CmdArgs) const { + CmdArgs.push_back("-E"); +} + +void 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; + 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 gcc::Linker::RenderExtraToolArgs(const JobAction &JA, + ArgStringList &CmdArgs) const { + // The types are (hopefully) good enough. +} + +// 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); + + //---------------------------------------------------------------------------- + // 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. + +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; + CmdArgs.push_back("-flavor"); + CmdArgs.push_back("old-gnu"); + CmdArgs.push_back("-target"); + CmdArgs.push_back(Args.MakeArgString(getToolChain().getTripleString())); + AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs); + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + C.addCommand(llvm::make_unique<Command>(JA, *this, Args.MakeArgString(Linker), + CmdArgs, Inputs)); +} +// AMDGPU tools end. + +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 char *Linker = Args.MakeArgString(getToolChain().GetLinkerPath()); + ArgStringList CmdArgs; + CmdArgs.push_back("-flavor"); + CmdArgs.push_back("ld"); + AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs); + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + C.addCommand(llvm::make_unique<Command>(JA, *this, Linker, CmdArgs, Inputs)); +} + +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 (getARMSubArchVersionNumber(Triple) >= 7 || isARMMProfile(Triple)) + CmdArgs.push_back("--be8"); +} + +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::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::isFPXXDefault(const llvm::Triple &Triple, StringRef CPUName, + StringRef ABIName, mips::FloatABI FloatABI) { + if (Triple.getVendor() != llvm::Triple::ImaginationTechnologies && + Triple.getVendor() != llvm::Triple::MipsTechnologies) + 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; +} + +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); + T.setArch(Arch); + + if (Str == "x86_64h") + T.setArchName(Str); + else if (Str == "armv6m" || Str == "armv7m" || Str == "armv7em") { + T.setOS(llvm::Triple::UnknownOS); + T.setObjectFormat(llvm::Triple::MachO); + } +} + +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"); +} + +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("--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); + + AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs); + + 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)); +} + +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; +} + +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[3] = {0, 0, 0}; + if (Arg *A = Args.getLastArg(options::OPT_mlinker_version_EQ)) { + bool HadExtra; + if (!Driver::GetReleaseVersion(A->getValue(), Version[0], Version[1], + Version[2], HadExtra) || + HadExtra) + 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. If not found, the option is not used + // and 'ld' will use its default mechanism to search for libLTO.dylib. + if (Version[0] >= 133) { + // Search for libLTO in <InstalledDir>/../lib/libLTO.dylib + StringRef P = llvm::sys::path::parent_path(D.getInstalledDir()); + SmallString<128> LibLTOPath(P); + llvm::sys::path::append(LibLTOPath, "lib"); + llvm::sys::path::append(LibLTOPath, "libLTO.dylib"); + if (llvm::sys::fs::exists(LibLTOPath)) { + CmdArgs.push_back("-lto_library"); + CmdArgs.push_back(C.getArgs().MakeArgString(LibLTOPath)); + } else { + D.Diag(diag::warn_drv_lto_libpath); + } + } + } + + // 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"); + } + + 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); +} + +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); + + // 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); + // 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 (!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); + } + + 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)); +} + +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); + + 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)); +} + +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(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(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(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"); + } + + 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 (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 + 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); + + 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)); +} + +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); + + 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)); +} + +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(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(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"); + + 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"); + } + 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); + + bool NeedsSanitizerDeps = addSanitizerRuntimes(ToolChain, Args, CmdArgs); + AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs); + + 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)); +} + +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; + 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(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(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(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 { + 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, + llvm::Triple(getToolChain().ComputeEffectiveClangTriple(Args))); + 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"))); + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtbegin.o"))); + } else { + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crti.o"))); + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtbeginS.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); + + AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs); + + unsigned Major, Minor, Micro; + getToolChain().getTriple().getOSVersion(Major, Minor, Micro); + bool useLibgcc = true; + if (Major >= 7 || (Major == 6 && Minor == 99 && Micro >= 49) || Major == 0) { + switch (getToolChain().getArch()) { + case llvm::Triple::aarch64: + 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::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 (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)) + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtend.o"))); + else + CmdArgs.push_back( + Args.MakeArgString(getToolChain().GetFilePath("crtendS.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)); +} + +void gnutools::Assembler::ConstructJob(Compilation &C, const JobAction &JA, + const InputInfo &Output, + const InputInfoList &Inputs, + const ArgList &Args, + const char *LinkingOutput) const { + claimNoWarnArgs(Args); + + std::string TripleStr = getToolChain().ComputeEffectiveClangTriple(Args); + llvm::Triple Triple = llvm::Triple(TripleStr); + + ArgStringList CmdArgs; + + llvm::Reloc::Model RelocationModel; + unsigned PICLevel; + bool IsPIE; + std::tie(RelocationModel, PICLevel, IsPIE) = + ParsePICArgs(getToolChain(), Triple, Args); + + 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(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(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 -march=armv7-a 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()).lower() == "krait") + CmdArgs.push_back("-march=armv7-a"); + else + Args.AddLastArg(CmdArgs, options::OPT_mcpu_EQ); + Args.AddLastArg(CmdArgs, options::OPT_mfpu_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 = 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. + CmdArgs.push_back(ABIName == "64" ? "-KPIC" : "-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, + 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 = 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])); +} + +static void AddLibgcc(const llvm::Triple &Triple, const Driver &D, + ArgStringList &CmdArgs, const ArgList &Args) { + bool isAndroid = Triple.isAndroid(); + bool isCygMing = Triple.isOSCygMing(); + 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) + 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"); +} + +static std::string getLinuxDynamicLinker(const ArgList &Args, + const toolchains::Linux &ToolChain) { + const llvm::Triple::ArchType Arch = ToolChain.getArch(); + + if (ToolChain.getTriple().isAndroid()) { + if (ToolChain.getTriple().isArch64Bit()) + return "/system/bin/linker64"; + else + return "/system/bin/linker"; + } else if (Arch == llvm::Triple::x86 || Arch == llvm::Triple::sparc || + Arch == llvm::Triple::sparcel) + return "/lib/ld-linux.so.2"; + else if (Arch == llvm::Triple::aarch64) + return "/lib/ld-linux-aarch64.so.1"; + else if (Arch == llvm::Triple::aarch64_be) + return "/lib/ld-linux-aarch64_be.so.1"; + else if (Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb) { + if (ToolChain.getTriple().getEnvironment() == llvm::Triple::GNUEABIHF || + arm::getARMFloatABI(ToolChain, Args) == arm::FloatABI::Hard) + return "/lib/ld-linux-armhf.so.3"; + else + return "/lib/ld-linux.so.3"; + } else if (Arch == llvm::Triple::armeb || Arch == llvm::Triple::thumbeb) { + // TODO: check which dynamic linker name. + if (ToolChain.getTriple().getEnvironment() == llvm::Triple::GNUEABIHF || + arm::getARMFloatABI(ToolChain, Args) == arm::FloatABI::Hard) + return "/lib/ld-linux-armhf.so.3"; + else + return "/lib/ld-linux.so.3"; + } else if (Arch == llvm::Triple::mips || Arch == llvm::Triple::mipsel || + Arch == llvm::Triple::mips64 || Arch == llvm::Triple::mips64el) { + std::string LibDir = + "/lib" + mips::getMipsABILibSuffix(Args, ToolChain.getTriple()); + StringRef LibName; + bool IsNaN2008 = mips::isNaN2008(Args, ToolChain.getTriple()); + if (mips::isUCLibc(Args)) + LibName = IsNaN2008 ? "ld-uClibc-mipsn8.so.0" : "ld-uClibc.so.0"; + else if (!ToolChain.getTriple().hasEnvironment()) { + bool LE = (ToolChain.getTriple().getArch() == llvm::Triple::mipsel) || + (ToolChain.getTriple().getArch() == llvm::Triple::mips64el); + LibName = LE ? "ld-musl-mipsel.so.1" : "ld-musl-mips.so.1"; + } else + LibName = IsNaN2008 ? "ld-linux-mipsn8.so.1" : "ld.so.1"; + + return (LibDir + "/" + LibName).str(); + } else if (Arch == llvm::Triple::ppc) + return "/lib/ld.so.1"; + else if (Arch == llvm::Triple::ppc64) { + if (ppc::hasPPCAbiArg(Args, "elfv2")) + return "/lib64/ld64.so.2"; + return "/lib64/ld64.so.1"; + } else if (Arch == llvm::Triple::ppc64le) { + if (ppc::hasPPCAbiArg(Args, "elfv1")) + return "/lib64/ld64.so.1"; + return "/lib64/ld64.so.2"; + } else if (Arch == llvm::Triple::systemz) + return "/lib/ld64.so.1"; + else if (Arch == llvm::Triple::sparcv9) + return "/lib64/ld-linux.so.2"; + else if (Arch == llvm::Triple::x86_64 && + ToolChain.getTriple().getEnvironment() == llvm::Triple::GNUX32) + return "/libx32/ld-linux-x32.so.2"; + else + return "/lib64/ld-linux-x86-64.so.2"; +} + +static void 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: + addClangRT(TC, Args, CmdArgs); + break; + } + break; + case ToolChain::RLT_Libgcc: + AddLibgcc(TC.getTriple(), D, CmdArgs, Args); + break; + } +} + +static const char *getLDMOption(const llvm::Triple &T, const ArgList &Args) { + switch (T.getArch()) { + case llvm::Triple::x86: + 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 "armebelf_linux_eabi"; /* TODO: check which NAME. */ + 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 (mips::hasMipsAbiArg(Args, "n32")) + return "elf32btsmipn32"; + return "elf64btsmip"; + case llvm::Triple::mips64el: + if (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: + llvm_unreachable("Unexpected arch"); + } +} + +void 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(); + + std::string TripleStr = getToolChain().ComputeEffectiveClangTriple(Args); + llvm::Triple Triple = llvm::Triple(TripleStr); + + const llvm::Triple::ArchType Arch = ToolChain.getArch(); + const bool isAndroid = ToolChain.getTriple().isAndroid(); + 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::filename(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); + + for (const auto &Opt : ToolChain.ExtraOpts) + CmdArgs.push_back(Opt.c_str()); + + if (!Args.hasArg(options::OPT_static)) { + CmdArgs.push_back("--eh-frame-hdr"); + } + + CmdArgs.push_back("-m"); + CmdArgs.push_back(getLDMOption(ToolChain.getTriple(), Args)); + + 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 (Arch == llvm::Triple::arm || Arch == llvm::Triple::armeb || + Arch == llvm::Triple::thumb || Arch == llvm::Triple::thumbeb || + (!Args.hasArg(options::OPT_static) && + !Args.hasArg(options::OPT_shared))) { + CmdArgs.push_back("-dynamic-linker"); + CmdArgs.push_back(Args.MakeArgString( + D.DyldPrefix + getLinuxDynamicLinker(Args, ToolChain))); + } + + CmdArgs.push_back("-o"); + CmdArgs.push_back(Output.getFilename()); + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + if (!isAndroid) { + 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; + 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); + + if (Args.hasArg(options::OPT_Z_Xlinker__no_demangle)) + CmdArgs.push_back("--no-demangle"); + + bool NeedsSanitizerDeps = addSanitizerRuntimes(ToolChain, Args, CmdArgs); + AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs); + // 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); + + bool WantPthread = Args.hasArg(options::OPT_pthread) || + Args.hasArg(options::OPT_pthreads); + + if (Args.hasFlag(options::OPT_fopenmp, options::OPT_fopenmp_EQ, + options::OPT_fno_openmp, false)) { + // OpenMP runtimes implies pthreads when using the GNU toolchain. + // FIXME: Does this really make sense for all GNU toolchains? + WantPthread = true; + + // Also link the particular OpenMP runtimes. + switch (getOpenMPRuntime(ToolChain, Args)) { + case OMPRT_OMP: + CmdArgs.push_back("-lomp"); + break; + case OMPRT_GOMP: + CmdArgs.push_back("-lgomp"); + + // FIXME: Exclude this for platforms with libgomp that don't require + // librt. Most modern Linux platforms require it, but some may not. + CmdArgs.push_back("-lrt"); + break; + case OMPRT_IOMP5: + CmdArgs.push_back("-liomp5"); + break; + case OMPRT_Unknown: + // Already diagnosed. + break; + } + } + + AddRunTimeLibs(ToolChain, D, CmdArgs, Args); + + if (WantPthread && !isAndroid) + CmdArgs.push_back("-lpthread"); + + CmdArgs.push_back("-lc"); + + if (Args.hasArg(options::OPT_static)) + CmdArgs.push_back("--end-group"); + else + AddRunTimeLibs(ToolChain, D, CmdArgs, Args); + } + + if (!Args.hasArg(options::OPT_nostartfiles)) { + 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"))); + } + } + + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +// 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(ToolChain.GetNaClArmMacrosPath(), types::TY_PP_Asm, + "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); + + 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)); +} + +void 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 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); + + 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)); +} + +/// 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); + + 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)); +} + +// 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 char *ClangProgramPath) { + const auto &MSVC = static_cast<const toolchains::MSVCToolChain &>(TC); + std::string visualStudioBinDir; + if (MSVC.getVisualStudioBinariesFolder(ClangProgramPath, + visualStudioBinDir)) { + SmallString<128> FilePath(visualStudioBinDir); + llvm::sys::path::append(FilePath, Exe); + if (llvm::sys::fs::can_execute(FilePath.c_str())) + return FilePath.str(); + } + + return 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; + const ToolChain &TC = 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. + std::string VisualStudioDir; + const auto &MSVC = static_cast<const toolchains::MSVCToolChain &>(TC); + if (MSVC.getVisualStudioInstallDir(VisualStudioDir)) { + SmallString<128> LibDir(VisualStudioDir); + llvm::sys::path::append(LibDir, "VC", "lib"); + switch (MSVC.getArch()) { + case llvm::Triple::x86: + // x86 just puts the libraries directly in lib + break; + case llvm::Triple::x86_64: + llvm::sys::path::append(LibDir, "amd64"); + break; + case llvm::Triple::arm: + llvm::sys::path::append(LibDir, "arm"); + break; + default: + break; + } + CmdArgs.push_back( + Args.MakeArgString(std::string("-libpath:") + LibDir.c_str())); + + if (MSVC.useUniversalCRT(VisualStudioDir)) { + std::string UniversalCRTLibPath; + if (MSVC.getUniversalCRTLibraryPath(UniversalCRTLibPath)) + CmdArgs.push_back(Args.MakeArgString(std::string("-libpath:") + + UniversalCRTLibPath.c_str())); + } + } + + std::string WindowsSdkLibPath; + if (MSVC.getWindowsSDKLibraryPath(WindowsSdkLibPath)) + CmdArgs.push_back(Args.MakeArgString(std::string("-libpath:") + + WindowsSdkLibPath.c_str())); + } + + CmdArgs.push_back("-nologo"); + + if (Args.hasArg(options::OPT_g_Group, options::OPT__SLASH_Z7)) + 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 (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("-include:___asan_seh_interceptor")); + } 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)); + } + } + + 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 (getOpenMPRuntime(getToolChain(), Args)) { + case OMPRT_OMP: + CmdArgs.push_back("-defaultlib:libomp.lib"); + break; + case OMPRT_IOMP5: + CmdArgs.push_back("-defaultlib:libiomp5md.lib"); + break; + case OMPRT_GOMP: + break; + case OMPRT_Unknown: + // Already diagnosed. + break; + } + } + + // 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); + } + + // 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", + C.getDriver().getClangProgramPath()); + } else { + linkPath = Linker; + llvm::sys::path::replace_extension(linkPath, "exe"); + linkPath = TC.GetProgramPath(linkPath.c_str()); + } + + const char *Exec = Args.MakeArgString(linkPath); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +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 (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_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); + + // 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); + + const Driver &D = getToolChain().getDriver(); + std::string Exec = FindVisualStudioExecutable(getToolChain(), "cl.exe", + D.getClangProgramPath()); + return llvm::make_unique<Command>(JA, *this, Args.MakeArgString(Exec), + CmdArgs, Inputs); +} + +/// MinGW Tools +void 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 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 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); + + // 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)); +} + +/// XCore Tools +// We pass assemble and link construction to the xcc tool. + +void 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 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); + + const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("xcc")); + C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); +} + +void 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 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)); + } + + if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { + const std::string CRTPath(D.SysRoot + "/usr/lib/"); + const char *CRTBegin; + + CRTBegin = + Args.hasArg(options::OPT_shared) ? "crtbeginS.obj" : "crtbegin.obj"; + CmdArgs.push_back(Args.MakeArgString(CRTPath + CRTBegin)); + } + + Args.AddAllArgs(CmdArgs, options::OPT_L); + TC.AddFilePathLibArgs(Args, CmdArgs); + AddLinkerInputs(TC, Inputs, Args, CmdArgs); + + 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)); +} + +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("-mcpu=myriad2"); + CmdArgs.push_back("-DMYRIAD2"); + + // Append all -I, -iquote, -isystem paths, defines/undefines, + // 'f' flags, optimize flags, and warning options. + // These are spelled the same way in clang and moviCompile. + Args.AddAllArgs(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}); + + // 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"); + CmdArgs.push_back("-cv:myriad2"); // Chip Version + 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); + + 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); + + AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs); + + if (UseDefaultLibs) { + if (C.getDriver().CCCIsCXX()) + CmdArgs.push_back("-lstdc++"); + if (T.getOS() == llvm::Triple::RTEMS) { + CmdArgs.push_back("--start-group"); + CmdArgs.push_back("-lc"); + // 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)); +} + +void 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("ps4-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); + + if (Args.hasArg(options::OPT_pthread)) { + CmdArgs.push_back("-lpthread"); + } + + const char *Exec = Args.MakeArgString(ToolChain.GetProgramPath("ps4-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); + + 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("ps4-ld.gold")); +#else + Args.MakeArgString(ToolChain.GetProgramPath("ps4-ld")); +#endif + + C.addCommand(llvm::make_unique<Command>(JA, T, Exec, CmdArgs, Inputs)); +} + +void 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); +} diff --git a/contrib/llvm/tools/clang/lib/Driver/Tools.h b/contrib/llvm/tools/clang/lib/Driver/Tools.h new file mode 100644 index 0000000..314315d --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/Tools.h @@ -0,0 +1,904 @@ +//===--- Tools.h - Tool 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_TOOLS_H +#define LLVM_CLANG_LIB_DRIVER_TOOLS_H + +#include "clang/Basic/VersionTuple.h" +#include "clang/Driver/Tool.h" +#include "clang/Driver/Types.h" +#include "clang/Driver/Util.h" +#include "clang/Frontend/CodeGenOptions.h" +#include "llvm/ADT/Triple.h" +#include "llvm/Option/Option.h" +#include "llvm/Support/Compiler.h" + +namespace clang { +class ObjCRuntime; + +namespace driver { +class Command; +class Driver; + +namespace toolchains { +class MachO; +} + +namespace tools { + +namespace visualstudio { +class Compiler; +} + +using llvm::opt::ArgStringList; + +SmallString<128> getCompilerRT(const ToolChain &TC, + const llvm::opt::ArgList &Args, + StringRef Component, bool Shared = false); + +/// \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 ToolChain *AuxToolChain) 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; + + 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, + llvm::opt::ArgStringList &CmdArgs, + enum CodeGenOptions::DebugInfoKind *DebugInfoKind, + bool *EmitCodeView) const; + + visualstudio::Compiler *getCLFallback() const; + + mutable std::unique_ptr<visualstudio::Compiler> CLFallback; + +public: + // 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. + Clang(const ToolChain &TC) : Tool("clang", "clang frontend", TC, RF_Full) {} + + 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; + 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; +}; + +/// \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) {} +}; + +/// 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) {} + + 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 + +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. + +namespace amdgpu { + +class LLVM_LIBRARY_VISIBILITY Linker : public GnuTool { +public: + Linker(const ToolChain &TC) : GnuTool("amdgpu::Linker", "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 + +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 + +namespace arm { +std::string getARMTargetCPU(StringRef CPU, StringRef Arch, + const llvm::Triple &Triple); +const std::string getARMArch(StringRef Arch, + const llvm::Triple &Triple); +StringRef getARMCPUForMArch(StringRef Arch, const llvm::Triple &Triple); +StringRef getLLVMArchSuffixForARM(StringRef CPU, StringRef Arch, + const llvm::Triple &Triple); + +void appendEBLinkFlags(const llvm::opt::ArgList &Args, ArgStringList &CmdArgs, + const llvm::Triple &Triple); +} // end namespace arm + +namespace mips { +typedef enum { NanLegacy = 1, Nan2008 = 2 } NanEncoding; + +enum class FloatABI { + Invalid, + Soft, + Hard, +}; + +NanEncoding getSupportedNanEncoding(StringRef &CPU); +void getMipsCPUAndABI(const llvm::opt::ArgList &Args, + const llvm::Triple &Triple, StringRef &CPUName, + StringRef &ABIName); +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 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 + +namespace ppc { +bool hasPPCAbiArg(const llvm::opt::ArgList &Args, const char *Value); +} // end namespace ppc + +/// 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 + +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 + +/// 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 + +/// 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 + +/// 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 + +/// 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 + +/// 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 + +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 + +/// 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 + +/// 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 + +/// 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 + +/// Visual studio tools. +namespace visualstudio { +VersionTuple getMSVCVersion(const Driver *D, const llvm::Triple &Triple, + const llvm::opt::ArgList &Args, bool IsWindowsMSVC); + +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 + +/// 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, ArgStringList &CmdArgs) const; +}; +} // end namespace MinGW + +namespace arm { +enum class FloatABI { + Invalid, + Soft, + SoftFP, + Hard, +}; + +FloatABI getARMFloatABI(const ToolChain &TC, const llvm::opt::ArgList &Args); +} // end namespace arm + +namespace ppc { +enum class FloatABI { + Invalid, + Soft, + Hard, +}; + +FloatABI getPPCFloatABI(const Driver &D, const llvm::opt::ArgList &Args); +} // end namespace ppc + +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. + +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 + +/// 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 + +namespace PS4cpu { +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 + +} // end namespace tools +} // end namespace driver +} // end namespace clang + +#endif // LLVM_CLANG_LIB_DRIVER_TOOLS_H diff --git a/contrib/llvm/tools/clang/lib/Driver/Types.cpp b/contrib/llvm/tools/clang/lib/Driver/Types.cpp new file mode 100644 index 0000000..c29ce94 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Driver/Types.cpp @@ -0,0 +1,262 @@ +//===--- Types.cpp - Driver input & temporary type information ------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "clang/Driver/Types.h" +#include "llvm/ADT/STLExtras.h" +#include "llvm/ADT/StringSwitch.h" +#include <cassert> +#include <string.h> + +using namespace clang::driver; +using namespace clang::driver::types; + +struct TypeInfo { + const char *Name; + const char *Flags; + const char *TempSuffix; + ID PreprocessedType; +}; + +static const TypeInfo TypeInfos[] = { +#define TYPE(NAME, ID, PP_TYPE, TEMP_SUFFIX, FLAGS) \ + { NAME, FLAGS, TEMP_SUFFIX, TY_##PP_TYPE, }, +#include "clang/Driver/Types.def" +#undef TYPE +}; +static const unsigned numTypes = llvm::array_lengthof(TypeInfos); + +static const TypeInfo &getInfo(unsigned id) { + assert(id > 0 && id - 1 < numTypes && "Invalid Type ID."); + return TypeInfos[id - 1]; +} + +const char *types::getTypeName(ID Id) { + return getInfo(Id).Name; +} + +types::ID types::getPreprocessedType(ID Id) { + return getInfo(Id).PreprocessedType; +} + +const char *types::getTypeTempSuffix(ID Id, bool CLMode) { + if (Id == TY_Object && CLMode) + return "obj"; + if (Id == TY_Image && CLMode) + return "exe"; + if (Id == TY_PP_Asm && CLMode) + return "asm"; + return getInfo(Id).TempSuffix; +} + +bool types::onlyAssembleType(ID Id) { + return strchr(getInfo(Id).Flags, 'a'); +} + +bool types::onlyPrecompileType(ID Id) { + return strchr(getInfo(Id).Flags, 'p'); +} + +bool types::canTypeBeUserSpecified(ID Id) { + return strchr(getInfo(Id).Flags, 'u'); +} + +bool types::appendSuffixForType(ID Id) { + return strchr(getInfo(Id).Flags, 'A'); +} + +bool types::canLipoType(ID Id) { + return (Id == TY_Nothing || + Id == TY_Image || + Id == TY_Object || + Id == TY_LTO_BC); +} + +bool types::isAcceptedByClang(ID Id) { + switch (Id) { + default: + return false; + + case TY_Asm: + case TY_C: case TY_PP_C: + case TY_CL: + case TY_CUDA: case TY_PP_CUDA: + case TY_CUDA_DEVICE: + case TY_ObjC: case TY_PP_ObjC: case TY_PP_ObjC_Alias: + case TY_CXX: case TY_PP_CXX: + case TY_ObjCXX: case TY_PP_ObjCXX: case TY_PP_ObjCXX_Alias: + case TY_CHeader: case TY_PP_CHeader: + case TY_CLHeader: + case TY_ObjCHeader: case TY_PP_ObjCHeader: + case TY_CXXHeader: case TY_PP_CXXHeader: + case TY_ObjCXXHeader: case TY_PP_ObjCXXHeader: + case TY_AST: case TY_ModuleFile: + case TY_LLVM_IR: case TY_LLVM_BC: + return true; + } +} + +bool types::isObjC(ID Id) { + switch (Id) { + default: + return false; + + case TY_ObjC: case TY_PP_ObjC: case TY_PP_ObjC_Alias: + case TY_ObjCXX: case TY_PP_ObjCXX: + case TY_ObjCHeader: case TY_PP_ObjCHeader: + case TY_ObjCXXHeader: case TY_PP_ObjCXXHeader: case TY_PP_ObjCXX_Alias: + return true; + } +} + +bool types::isCXX(ID Id) { + switch (Id) { + default: + return false; + + case TY_CXX: case TY_PP_CXX: + case TY_ObjCXX: case TY_PP_ObjCXX: case TY_PP_ObjCXX_Alias: + case TY_CXXHeader: case TY_PP_CXXHeader: + case TY_ObjCXXHeader: case TY_PP_ObjCXXHeader: + case TY_CUDA: case TY_PP_CUDA: case TY_CUDA_DEVICE: + return true; + } +} + +bool types::isLLVMIR(ID Id) { + switch (Id) { + default: + return false; + + case TY_LLVM_IR: + case TY_LLVM_BC: + case TY_LTO_IR: + case TY_LTO_BC: + return true; + } +} + +bool types::isCuda(ID Id) { + switch (Id) { + default: + return false; + + case TY_CUDA: + case TY_PP_CUDA: + case TY_CUDA_DEVICE: + return true; + } +} + +types::ID types::lookupTypeForExtension(const char *Ext) { + return llvm::StringSwitch<types::ID>(Ext) + .Case("c", TY_C) + .Case("i", TY_PP_C) + .Case("m", TY_ObjC) + .Case("M", TY_ObjCXX) + .Case("h", TY_CHeader) + .Case("C", TY_CXX) + .Case("H", TY_CXXHeader) + .Case("f", TY_PP_Fortran) + .Case("F", TY_Fortran) + .Case("s", TY_PP_Asm) + .Case("asm", TY_PP_Asm) + .Case("S", TY_Asm) + .Case("o", TY_Object) + .Case("obj", TY_Object) + .Case("lib", TY_Object) + .Case("ii", TY_PP_CXX) + .Case("mi", TY_PP_ObjC) + .Case("mm", TY_ObjCXX) + .Case("bc", TY_LLVM_BC) + .Case("cc", TY_CXX) + .Case("CC", TY_CXX) + .Case("cl", TY_CL) + .Case("cp", TY_CXX) + .Case("cu", TY_CUDA) + .Case("cui", TY_PP_CUDA) + .Case("hh", TY_CXXHeader) + .Case("ll", TY_LLVM_IR) + .Case("hpp", TY_CXXHeader) + .Case("ads", TY_Ada) + .Case("adb", TY_Ada) + .Case("ast", TY_AST) + .Case("c++", TY_CXX) + .Case("C++", TY_CXX) + .Case("cxx", TY_CXX) + .Case("cpp", TY_CXX) + .Case("CPP", TY_CXX) + .Case("CXX", TY_CXX) + .Case("for", TY_PP_Fortran) + .Case("FOR", TY_PP_Fortran) + .Case("fpp", TY_Fortran) + .Case("FPP", TY_Fortran) + .Case("f90", TY_PP_Fortran) + .Case("f95", TY_PP_Fortran) + .Case("F90", TY_Fortran) + .Case("F95", TY_Fortran) + .Case("mii", TY_PP_ObjCXX) + .Case("pcm", TY_ModuleFile) + .Case("pch", TY_PCH) + .Case("gch", TY_PCH) + .Default(TY_INVALID); +} + +types::ID types::lookupTypeForTypeSpecifier(const char *Name) { + for (unsigned i=0; i<numTypes; ++i) { + types::ID Id = (types::ID) (i + 1); + if (canTypeBeUserSpecified(Id) && + strcmp(Name, getInfo(Id).Name) == 0) + return Id; + } + + return TY_INVALID; +} + +// FIXME: Why don't we just put this list in the defs file, eh. +void types::getCompilationPhases(ID Id, llvm::SmallVectorImpl<phases::ID> &P) { + if (Id != TY_Object) { + if (getPreprocessedType(Id) != TY_INVALID) { + P.push_back(phases::Preprocess); + } + + if (onlyPrecompileType(Id)) { + P.push_back(phases::Precompile); + } else { + if (!onlyAssembleType(Id)) { + P.push_back(phases::Compile); + P.push_back(phases::Backend); + } + if (Id != TY_CUDA_DEVICE) + P.push_back(phases::Assemble); + } + } + + if (!onlyPrecompileType(Id) && Id != TY_CUDA_DEVICE) { + P.push_back(phases::Link); + } + assert(0 < P.size() && "Not enough phases in list"); + assert(P.size() <= phases::MaxNumberOfPhases && "Too many phases in list"); + return; +} + +ID types::lookupCXXTypeForCType(ID Id) { + switch (Id) { + default: + return Id; + + case types::TY_C: + return types::TY_CXX; + case types::TY_PP_C: + return types::TY_PP_CXX; + case types::TY_CHeader: + return types::TY_CXXHeader; + case types::TY_PP_CHeader: + return types::TY_PP_CXXHeader; + } +} |
