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Diffstat (limited to 'lib/Driver/ToolChains.cpp')
| -rw-r--r-- | lib/Driver/ToolChains.cpp | 475 |
1 files changed, 475 insertions, 0 deletions
diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp new file mode 100644 index 0000000..436d343 --- /dev/null +++ b/lib/Driver/ToolChains.cpp @@ -0,0 +1,475 @@ +//===--- 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 "clang/Driver/Arg.h" +#include "clang/Driver/ArgList.h" +#include "clang/Driver/Driver.h" +#include "clang/Driver/DriverDiagnostic.h" +#include "clang/Driver/HostInfo.h" +#include "clang/Driver/Option.h" + +#include "llvm/ADT/StringExtras.h" +#include "llvm/Support/raw_ostream.h" +#include "llvm/System/Path.h" + +#include <cstdlib> // ::getenv + +using namespace clang::driver; +using namespace clang::driver::toolchains; + +/// Darwin_X86 - Darwin tool chain for i386 and x86_64. + +Darwin_X86::Darwin_X86(const HostInfo &Host, const llvm::Triple& Triple, + const unsigned (&_DarwinVersion)[3], + const unsigned (&_GCCVersion)[3]) + : ToolChain(Host, Triple) { + DarwinVersion[0] = _DarwinVersion[0]; + DarwinVersion[1] = _DarwinVersion[1]; + DarwinVersion[2] = _DarwinVersion[2]; + GCCVersion[0] = _GCCVersion[0]; + GCCVersion[1] = _GCCVersion[1]; + GCCVersion[2] = _GCCVersion[2]; + + llvm::raw_string_ostream(MacosxVersionMin) + << "10." << DarwinVersion[0] - 4 << '.' << DarwinVersion[1]; + + ToolChainDir = "i686-apple-darwin"; + ToolChainDir += llvm::utostr(DarwinVersion[0]); + ToolChainDir += "/"; + ToolChainDir += llvm::utostr(GCCVersion[0]); + ToolChainDir += '.'; + ToolChainDir += llvm::utostr(GCCVersion[1]); + ToolChainDir += '.'; + ToolChainDir += llvm::utostr(GCCVersion[2]); + + std::string Path; + if (getArchName() == "x86_64") { + Path = getHost().getDriver().Dir; + Path += "/../lib/gcc/"; + Path += getToolChainDir(); + Path += "/x86_64"; + getFilePaths().push_back(Path); + + Path = "/usr/lib/gcc/"; + Path += getToolChainDir(); + Path += "/x86_64"; + getFilePaths().push_back(Path); + } + + Path = getHost().getDriver().Dir; + Path += "/../lib/gcc/"; + Path += getToolChainDir(); + getFilePaths().push_back(Path); + + Path = "/usr/lib/gcc/"; + Path += getToolChainDir(); + getFilePaths().push_back(Path); + + Path = getHost().getDriver().Dir; + Path += "/../libexec/gcc/"; + Path += getToolChainDir(); + getProgramPaths().push_back(Path); + + Path = "/usr/libexec/gcc/"; + Path += getToolChainDir(); + getProgramPaths().push_back(Path); + + Path = getHost().getDriver().Dir; + Path += "/../libexec"; + getProgramPaths().push_back(Path); + + getProgramPaths().push_back(getHost().getDriver().Dir); +} + +Darwin_X86::~Darwin_X86() { + // Free tool implementations. + for (llvm::DenseMap<unsigned, Tool*>::iterator + it = Tools.begin(), ie = Tools.end(); it != ie; ++it) + delete it->second; +} + +Tool &Darwin_X86::SelectTool(const Compilation &C, + const JobAction &JA) const { + Action::ActionClass Key; + if (getHost().getDriver().ShouldUseClangCompiler(C, JA, getArchName())) + Key = Action::AnalyzeJobClass; + else + Key = JA.getKind(); + + Tool *&T = Tools[Key]; + if (!T) { + switch (Key) { + case Action::InputClass: + case Action::BindArchClass: + assert(0 && "Invalid tool kind."); + case Action::PreprocessJobClass: + T = new tools::darwin::Preprocess(*this); break; + case Action::AnalyzeJobClass: + T = new tools::Clang(*this); break; + case Action::PrecompileJobClass: + case Action::CompileJobClass: + T = new tools::darwin::Compile(*this); break; + case Action::AssembleJobClass: + T = new tools::darwin::Assemble(*this); break; + case Action::LinkJobClass: + T = new tools::darwin::Link(*this, MacosxVersionMin.c_str()); break; + case Action::LipoJobClass: + T = new tools::darwin::Lipo(*this); break; + } + } + + return *T; +} + +DerivedArgList *Darwin_X86::TranslateArgs(InputArgList &Args) const { + DerivedArgList *DAL = new DerivedArgList(Args, false); + const OptTable &Opts = getHost().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. + + Arg *OSXVersion = + Args.getLastArg(options::OPT_mmacosx_version_min_EQ, false); + Arg *iPhoneVersion = + Args.getLastArg(options::OPT_miphoneos_version_min_EQ, false); + if (OSXVersion && iPhoneVersion) { + getHost().getDriver().Diag(clang::diag::err_drv_argument_not_allowed_with) + << OSXVersion->getAsString(Args) + << iPhoneVersion->getAsString(Args); + } else if (!OSXVersion && !iPhoneVersion) { + // Chose the default version based on the arch. + // + // FIXME: This will need to be fixed when we merge in arm support. + + // Look for MACOSX_DEPLOYMENT_TARGET, otherwise use the version + // from the host. + const char *Version = ::getenv("MACOSX_DEPLOYMENT_TARGET"); + if (!Version) + Version = MacosxVersionMin.c_str(); + const Option *O = Opts.getOption(options::OPT_mmacosx_version_min_EQ); + DAL->append(DAL->MakeJoinedArg(0, O, Version)); + } + + for (ArgList::iterator it = Args.begin(), ie = Args.end(); it != ie; ++it) { + Arg *A = *it; + + if (A->getOption().matches(options::OPT_Xarch__)) { + // FIXME: Canonicalize name. + if (getArchName() != A->getValue(Args, 0)) + continue; + + // FIXME: The arg is leaked here, and we should have a nicer + // interface for this. + unsigned Prev, Index = Prev = A->getIndex() + 1; + 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 || + XarchArg->getOption().isDriverOption()) { + getHost().getDriver().Diag(clang::diag::err_drv_invalid_Xarch_argument) + << A->getAsString(Args); + continue; + } + + XarchArg->setBaseArg(A); + A = XarchArg; + } + + // Sob. These is strictly gcc compatible for the time being. Apple + // gcc translates options twice, which means that self-expanding + // options add duplicates. + options::ID id = A->getOption().getId(); + switch (id) { + default: + DAL->append(A); + break; + + case options::OPT_mkernel: + case options::OPT_fapple_kext: + DAL->append(A); + DAL->append(DAL->MakeFlagArg(A, Opts.getOption(options::OPT_static))); + DAL->append(DAL->MakeFlagArg(A, Opts.getOption(options::OPT_static))); + break; + + case options::OPT_dependency_file: + DAL->append(DAL->MakeSeparateArg(A, Opts.getOption(options::OPT_MF), + A->getValue(Args))); + break; + + case options::OPT_gfull: + DAL->append(DAL->MakeFlagArg(A, Opts.getOption(options::OPT_g_Flag))); + DAL->append(DAL->MakeFlagArg(A, + Opts.getOption(options::OPT_fno_eliminate_unused_debug_symbols))); + break; + + case options::OPT_gused: + DAL->append(DAL->MakeFlagArg(A, Opts.getOption(options::OPT_g_Flag))); + DAL->append(DAL->MakeFlagArg(A, + Opts.getOption(options::OPT_feliminate_unused_debug_symbols))); + break; + + case options::OPT_fterminated_vtables: + case options::OPT_findirect_virtual_calls: + DAL->append(DAL->MakeFlagArg(A, + Opts.getOption(options::OPT_fapple_kext))); + DAL->append(DAL->MakeFlagArg(A, Opts.getOption(options::OPT_static))); + break; + + case options::OPT_shared: + DAL->append(DAL->MakeFlagArg(A, Opts.getOption(options::OPT_dynamiclib))); + break; + + case options::OPT_fconstant_cfstrings: + DAL->append(DAL->MakeFlagArg(A, + Opts.getOption(options::OPT_mconstant_cfstrings))); + break; + + case options::OPT_fno_constant_cfstrings: + DAL->append(DAL->MakeFlagArg(A, + Opts.getOption(options::OPT_mno_constant_cfstrings))); + break; + + case options::OPT_Wnonportable_cfstrings: + DAL->append(DAL->MakeFlagArg(A, + Opts.getOption(options::OPT_mwarn_nonportable_cfstrings))); + break; + + case options::OPT_Wno_nonportable_cfstrings: + DAL->append(DAL->MakeFlagArg(A, + Opts.getOption(options::OPT_mno_warn_nonportable_cfstrings))); + break; + + case options::OPT_fpascal_strings: + DAL->append(DAL->MakeFlagArg(A, + Opts.getOption(options::OPT_mpascal_strings))); + break; + + case options::OPT_fno_pascal_strings: + DAL->append(DAL->MakeFlagArg(A, + Opts.getOption(options::OPT_mno_pascal_strings))); + break; + } + } + + // FIXME: Actually, gcc always adds this, but it is filtered for + // duplicates somewhere. This also changes the order of things, so + // look it up. + if (getArchName() == "x86_64") + if (!Args.hasArg(options::OPT_m64, false)) + DAL->append(DAL->MakeFlagArg(0, Opts.getOption(options::OPT_m64))); + + if (!Args.hasArg(options::OPT_mtune_EQ, false)) + DAL->append(DAL->MakeJoinedArg(0, Opts.getOption(options::OPT_mtune_EQ), + "core2")); + + return DAL; +} + +bool Darwin_X86::IsMathErrnoDefault() const { + return false; +} + +bool Darwin_X86::IsUnwindTablesDefault() const { + // FIXME: Gross; we should probably have some separate target + // definition, possibly even reusing the one in clang. + return getArchName() == "x86_64"; +} + +const char *Darwin_X86::GetDefaultRelocationModel() const { + return "pic"; +} + +const char *Darwin_X86::GetForcedPicModel() const { + if (getArchName() == "x86_64") + return "pic"; + return 0; +} + +/// Generic_GCC - A tool chain using the 'gcc' command to perform +/// all subcommands; this relies on gcc translating the majority of +/// command line options. + +Generic_GCC::Generic_GCC(const HostInfo &Host, const llvm::Triple& Triple) + : ToolChain(Host, Triple) +{ + std::string Path(getHost().getDriver().Dir); + Path += "/../libexec"; + getProgramPaths().push_back(Path); + + getProgramPaths().push_back(getHost().getDriver().Dir); +} + +Generic_GCC::~Generic_GCC() { + // Free tool implementations. + for (llvm::DenseMap<unsigned, Tool*>::iterator + it = Tools.begin(), ie = Tools.end(); it != ie; ++it) + delete it->second; +} + +Tool &Generic_GCC::SelectTool(const Compilation &C, + const JobAction &JA) const { + Action::ActionClass Key; + if (getHost().getDriver().ShouldUseClangCompiler(C, JA, getArchName())) + Key = Action::AnalyzeJobClass; + else + Key = JA.getKind(); + + Tool *&T = Tools[Key]; + if (!T) { + switch (Key) { + case Action::InputClass: + case Action::BindArchClass: + assert(0 && "Invalid tool kind."); + case Action::PreprocessJobClass: + T = new tools::gcc::Preprocess(*this); break; + case Action::PrecompileJobClass: + T = new tools::gcc::Precompile(*this); break; + case Action::AnalyzeJobClass: + T = new tools::Clang(*this); break; + case Action::CompileJobClass: + T = new tools::gcc::Compile(*this); break; + case Action::AssembleJobClass: + T = new tools::gcc::Assemble(*this); break; + case Action::LinkJobClass: + T = new tools::gcc::Link(*this); break; + + // This is a bit ungeneric, but the only platform using a driver + // driver is Darwin. + case Action::LipoJobClass: + T = new tools::darwin::Lipo(*this); break; + } + } + + return *T; +} + +bool Generic_GCC::IsMathErrnoDefault() const { + return true; +} + +bool Generic_GCC::IsUnwindTablesDefault() const { + // FIXME: Gross; we should probably have some separate target + // definition, possibly even reusing the one in clang. + return getArchName() == "x86_64"; +} + +const char *Generic_GCC::GetDefaultRelocationModel() const { + return "static"; +} + +const char *Generic_GCC::GetForcedPicModel() const { + return 0; +} + +DerivedArgList *Generic_GCC::TranslateArgs(InputArgList &Args) const { + return new DerivedArgList(Args, true); +} + +/// FreeBSD - FreeBSD tool chain which can call as(1) and ld(1) directly. + +FreeBSD::FreeBSD(const HostInfo &Host, const llvm::Triple& Triple, bool Lib32) + : Generic_GCC(Host, Triple) { + if (Lib32) { + getFilePaths().push_back(getHost().getDriver().Dir + "/../lib32"); + getFilePaths().push_back("/usr/lib32"); + } else { + getFilePaths().push_back(getHost().getDriver().Dir + "/../lib"); + getFilePaths().push_back("/usr/lib"); + } +} + +Tool &FreeBSD::SelectTool(const Compilation &C, const JobAction &JA) const { + Action::ActionClass Key; + if (getHost().getDriver().ShouldUseClangCompiler(C, JA, getArchName())) + Key = Action::AnalyzeJobClass; + else + Key = JA.getKind(); + + Tool *&T = Tools[Key]; + if (!T) { + switch (Key) { + case Action::AssembleJobClass: + T = new tools::freebsd::Assemble(*this); break; + case Action::LinkJobClass: + T = new tools::freebsd::Link(*this); break; + default: + T = &Generic_GCC::SelectTool(C, JA); + } + } + + return *T; +} + +/// Linux toolchain (very bare-bones at the moment). + +Linux::Linux(const HostInfo &Host, const llvm::Triple& Triple) + : Generic_GCC(Host, Triple) { + getFilePaths().push_back(getHost().getDriver().Dir + "/../lib/clang/1.0/"); + getFilePaths().push_back("/lib/"); + getFilePaths().push_back("/usr/lib/"); + // FIXME: Figure out some way to get gcc's libdir + // (e.g. /usr/lib/gcc/i486-linux-gnu/4.3/ for Ubuntu 32-bit); we need + // crtbegin.o/crtend.o/etc., and want static versions of various + // libraries. If we had our own crtbegin.o/crtend.o/etc, we could probably + // get away with using shared versions in /usr/lib, though. + // We could fall back to the approach we used for includes (a massive + // list), but that's messy at best. +} + +/// DragonFly - DragonFly tool chain which can call as(1) and ld(1) directly. + +DragonFly::DragonFly(const HostInfo &Host, const llvm::Triple& Triple) + : Generic_GCC(Host, Triple) { + + // Path mangling to find libexec + std::string Path(getHost().getDriver().Dir); + + Path += "/../libexec"; + getProgramPaths().push_back(Path); + getProgramPaths().push_back(getHost().getDriver().Dir); + + getFilePaths().push_back(getHost().getDriver().Dir + "/../lib"); + getFilePaths().push_back("/usr/lib"); + getFilePaths().push_back("/usr/lib/gcc41"); +} + +Tool &DragonFly::SelectTool(const Compilation &C, const JobAction &JA) const { + Action::ActionClass Key; + if (getHost().getDriver().ShouldUseClangCompiler(C, JA, getArchName())) + Key = Action::AnalyzeJobClass; + else + Key = JA.getKind(); + + Tool *&T = Tools[Key]; + if (!T) { + switch (Key) { + case Action::AssembleJobClass: + T = new tools::dragonfly::Assemble(*this); break; + case Action::LinkJobClass: + T = new tools::dragonfly::Link(*this); break; + default: + T = &Generic_GCC::SelectTool(C, JA); + } + } + + return *T; +} |
