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llvm-project/clang/lib/Driver/ToolChains/MinGW.cpp
Juergen Ributzka 4ad4c8e90e
[clang] Use LazyDetector for all toolchains. (#79073) 
Use the LazyDetector also for the remaining toolchains to avoid unnecessarily checking for the Cuda and Rocm installations.

This fixes rdar://121397534.
2024-01-23 13:14:17 -08:00

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//===--- MinGW.cpp - MinGWToolChain Implementation ------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "MinGW.h"
#include "CommonArgs.h"
#include "clang/Config/config.h"
#include "clang/Driver/Compilation.h"
#include "clang/Driver/Driver.h"
#include "clang/Driver/DriverDiagnostic.h"
#include "clang/Driver/InputInfo.h"
#include "clang/Driver/Options.h"
#include "clang/Driver/SanitizerArgs.h"
#include "llvm/Option/ArgList.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/VirtualFileSystem.h"
#include <system_error>
using namespace clang::diag;
using namespace clang::driver;
using namespace clang;
using namespace llvm::opt;
/// MinGW Tools
void tools::MinGW::Assembler::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
claimNoWarnArgs(Args);
ArgStringList CmdArgs;
if (getToolChain().getArch() == llvm::Triple::x86) {
CmdArgs.push_back("--32");
} else if (getToolChain().getArch() == llvm::Triple::x86_64) {
CmdArgs.push_back("--64");
}
Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
for (const auto &II : Inputs)
CmdArgs.push_back(II.getFilename());
const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as"));
C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(),
Exec, CmdArgs, Inputs, Output));
if (Args.hasArg(options::OPT_gsplit_dwarf))
SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output,
SplitDebugName(JA, Args, Inputs[0], Output));
}
void tools::MinGW::Linker::AddLibGCC(const ArgList &Args,
ArgStringList &CmdArgs) const {
if (Args.hasArg(options::OPT_mthreads))
CmdArgs.push_back("-lmingwthrd");
CmdArgs.push_back("-lmingw32");
// Make use of compiler-rt if --rtlib option is used
ToolChain::RuntimeLibType RLT = getToolChain().GetRuntimeLibType(Args);
if (RLT == ToolChain::RLT_Libgcc) {
bool Static = Args.hasArg(options::OPT_static_libgcc) ||
Args.hasArg(options::OPT_static);
bool Shared = Args.hasArg(options::OPT_shared);
bool CXX = getToolChain().getDriver().CCCIsCXX();
if (Static || (!CXX && !Shared)) {
CmdArgs.push_back("-lgcc");
CmdArgs.push_back("-lgcc_eh");
} else {
CmdArgs.push_back("-lgcc_s");
CmdArgs.push_back("-lgcc");
}
} else {
AddRunTimeLibs(getToolChain(), getToolChain().getDriver(), CmdArgs, Args);
}
CmdArgs.push_back("-lmoldname");
CmdArgs.push_back("-lmingwex");
for (auto Lib : Args.getAllArgValues(options::OPT_l))
if (StringRef(Lib).starts_with("msvcr") ||
StringRef(Lib).starts_with("ucrt") ||
StringRef(Lib).starts_with("crtdll"))
return;
CmdArgs.push_back("-lmsvcrt");
}
void tools::MinGW::Linker::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
const ToolChain &TC = getToolChain();
const Driver &D = TC.getDriver();
const SanitizerArgs &Sanitize = TC.getSanitizerArgs(Args);
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_s))
CmdArgs.push_back("-s");
CmdArgs.push_back("-m");
switch (TC.getArch()) {
case llvm::Triple::x86:
CmdArgs.push_back("i386pe");
break;
case llvm::Triple::x86_64:
CmdArgs.push_back("i386pep");
break;
case llvm::Triple::arm:
case llvm::Triple::thumb:
// FIXME: this is incorrect for WinCE
CmdArgs.push_back("thumb2pe");
break;
case llvm::Triple::aarch64:
CmdArgs.push_back("arm64pe");
break;
default:
D.Diag(diag::err_target_unknown_triple) << TC.getEffectiveTriple().str();
}
Arg *SubsysArg =
Args.getLastArg(options::OPT_mwindows, options::OPT_mconsole);
if (SubsysArg && SubsysArg->getOption().matches(options::OPT_mwindows)) {
CmdArgs.push_back("--subsystem");
CmdArgs.push_back("windows");
} else if (SubsysArg &&
SubsysArg->getOption().matches(options::OPT_mconsole)) {
CmdArgs.push_back("--subsystem");
CmdArgs.push_back("console");
}
if (Args.hasArg(options::OPT_mdll))
CmdArgs.push_back("--dll");
else if (Args.hasArg(options::OPT_shared))
CmdArgs.push_back("--shared");
if (Args.hasArg(options::OPT_static))
CmdArgs.push_back("-Bstatic");
else
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");
}
if (Args.hasArg(options::OPT_Z_Xlinker__no_demangle))
CmdArgs.push_back("--no-demangle");
if (!Args.hasFlag(options::OPT_fauto_import, options::OPT_fno_auto_import,
true))
CmdArgs.push_back("--disable-auto-import");
if (Arg *A = Args.getLastArg(options::OPT_mguard_EQ)) {
StringRef GuardArgs = A->getValue();
if (GuardArgs == "none")
CmdArgs.push_back("--no-guard-cf");
else if (GuardArgs == "cf" || GuardArgs == "cf-nochecks")
CmdArgs.push_back("--guard-cf");
else
D.Diag(diag::err_drv_unsupported_option_argument)
<< A->getSpelling() << GuardArgs;
}
CmdArgs.push_back("-o");
const char *OutputFile = Output.getFilename();
// GCC implicitly adds an .exe extension if it is given an output file name
// that lacks an extension.
// GCC used to do this only when the compiler itself runs on windows, but
// since GCC 8 it does the same when cross compiling as well.
if (!llvm::sys::path::has_extension(OutputFile)) {
CmdArgs.push_back(Args.MakeArgString(Twine(OutputFile) + ".exe"));
OutputFile = CmdArgs.back();
} else
CmdArgs.push_back(OutputFile);
// 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);
// Add asan_dynamic as the first import lib before other libs. This allows
// asan to be initialized as early as possible to increase its instrumentation
// coverage to include other user DLLs which has not been built with asan.
if (Sanitize.needsAsanRt() && !Args.hasArg(options::OPT_nostdlib) &&
!Args.hasArg(options::OPT_nodefaultlibs)) {
// MinGW always links against a shared MSVCRT.
CmdArgs.push_back(
TC.getCompilerRTArgString(Args, "asan_dynamic", ToolChain::FT_Shared));
}
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);
// Add the compiler-rt library directories if they exist to help
// the linker find the various sanitizer, builtin, and profiling runtimes.
for (const auto &LibPath : TC.getLibraryPaths()) {
if (TC.getVFS().exists(LibPath))
CmdArgs.push_back(Args.MakeArgString("-L" + LibPath));
}
auto CRTPath = TC.getCompilerRTPath();
if (TC.getVFS().exists(CRTPath))
CmdArgs.push_back(Args.MakeArgString("-L" + CRTPath));
AddLinkerInputs(TC, Inputs, Args, CmdArgs, JA);
if (D.isUsingLTO()) {
assert(!Inputs.empty() && "Must have at least one input.");
addLTOOptions(TC, Args, CmdArgs, Output, Inputs[0],
D.getLTOMode() == LTOK_Thin);
}
if (C.getDriver().IsFlangMode()) {
addFortranRuntimeLibraryPath(TC, Args, CmdArgs);
addFortranRuntimeLibs(TC, Args, CmdArgs);
}
// TODO: Add profile stuff here
if (TC.ShouldLinkCXXStdlib(Args)) {
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");
}
bool HasWindowsApp = false;
for (auto Lib : Args.getAllArgValues(options::OPT_l)) {
if (Lib == "windowsapp") {
HasWindowsApp = true;
break;
}
}
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.hasFlag(options::OPT_fopenmp, options::OPT_fopenmp_EQ,
options::OPT_fno_openmp, false)) {
switch (TC.getDriver().getOpenMPRuntime(Args)) {
case Driver::OMPRT_OMP:
CmdArgs.push_back("-lomp");
break;
case Driver::OMPRT_IOMP5:
CmdArgs.push_back("-liomp5md");
break;
case Driver::OMPRT_GOMP:
CmdArgs.push_back("-lgomp");
break;
case Driver::OMPRT_Unknown:
// Already diagnosed.
break;
}
}
AddLibGCC(Args, CmdArgs);
if (Args.hasArg(options::OPT_pg))
CmdArgs.push_back("-lgmon");
if (Args.hasArg(options::OPT_pthread))
CmdArgs.push_back("-lpthread");
if (Sanitize.needsAsanRt()) {
// MinGW always links against a shared MSVCRT.
CmdArgs.push_back(TC.getCompilerRTArgString(Args, "asan_dynamic",
ToolChain::FT_Shared));
CmdArgs.push_back(
TC.getCompilerRTArgString(Args, "asan_dynamic_runtime_thunk"));
CmdArgs.push_back("--require-defined");
CmdArgs.push_back(TC.getArch() == llvm::Triple::x86
? "___asan_seh_interceptor"
: "__asan_seh_interceptor");
// Make sure the linker consider all object files from the dynamic
// runtime thunk.
CmdArgs.push_back("--whole-archive");
CmdArgs.push_back(
TC.getCompilerRTArgString(Args, "asan_dynamic_runtime_thunk"));
CmdArgs.push_back("--no-whole-archive");
}
TC.addProfileRTLibs(Args, CmdArgs);
if (!HasWindowsApp) {
// Add system libraries. If linking to libwindowsapp.a, that import
// library replaces all these and we shouldn't accidentally try to
// link to the normal desktop mode dlls.
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 {
AddLibGCC(Args, CmdArgs);
if (!HasWindowsApp)
CmdArgs.push_back("-lkernel32");
}
}
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.GetLinkerPath());
C.addCommand(std::make_unique<Command>(JA, *this,
ResponseFileSupport::AtFileUTF8(),
Exec, CmdArgs, Inputs, Output));
}
static bool isCrossCompiling(const llvm::Triple &T, bool RequireArchMatch) {
llvm::Triple HostTriple(llvm::Triple::normalize(LLVM_HOST_TRIPLE));
if (HostTriple.getOS() != llvm::Triple::Win32)
return true;
if (RequireArchMatch && HostTriple.getArch() != T.getArch())
return true;
return false;
}
// Simplified from Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple.
static bool findGccVersion(StringRef LibDir, std::string &GccLibDir,
std::string &Ver,
toolchains::Generic_GCC::GCCVersion &Version) {
Version = toolchains::Generic_GCC::GCCVersion::Parse("0.0.0");
std::error_code EC;
for (llvm::sys::fs::directory_iterator LI(LibDir, EC), LE; !EC && LI != LE;
LI = LI.increment(EC)) {
StringRef VersionText = llvm::sys::path::filename(LI->path());
auto CandidateVersion =
toolchains::Generic_GCC::GCCVersion::Parse(VersionText);
if (CandidateVersion.Major == -1)
continue;
if (CandidateVersion <= Version)
continue;
Version = CandidateVersion;
Ver = std::string(VersionText);
GccLibDir = LI->path();
}
return Ver.size();
}
static llvm::Triple getLiteralTriple(const Driver &D, const llvm::Triple &T) {
llvm::Triple LiteralTriple(D.getTargetTriple());
// The arch portion of the triple may be overridden by -m32/-m64.
LiteralTriple.setArchName(T.getArchName());
return LiteralTriple;
}
void toolchains::MinGW::findGccLibDir(const llvm::Triple &LiteralTriple) {
llvm::SmallVector<llvm::SmallString<32>, 5> SubdirNames;
SubdirNames.emplace_back(LiteralTriple.str());
SubdirNames.emplace_back(getTriple().str());
SubdirNames.emplace_back(getTriple().getArchName());
SubdirNames.back() += "-w64-mingw32";
SubdirNames.emplace_back(getTriple().getArchName());
SubdirNames.back() += "-w64-mingw32ucrt";
SubdirNames.emplace_back("mingw32");
if (SubdirName.empty()) {
SubdirName = getTriple().getArchName();
SubdirName += "-w64-mingw32";
}
// lib: Arch Linux, Ubuntu, Windows
// lib64: openSUSE Linux
for (StringRef CandidateLib : {"lib", "lib64"}) {
for (StringRef CandidateSysroot : SubdirNames) {
llvm::SmallString<1024> LibDir(Base);
llvm::sys::path::append(LibDir, CandidateLib, "gcc", CandidateSysroot);
if (findGccVersion(LibDir, GccLibDir, Ver, GccVer)) {
SubdirName = std::string(CandidateSysroot);
return;
}
}
}
}
static llvm::ErrorOr<std::string> findGcc(const llvm::Triple &LiteralTriple,
const llvm::Triple &T) {
llvm::SmallVector<llvm::SmallString<32>, 5> Gccs;
Gccs.emplace_back(LiteralTriple.str());
Gccs.back() += "-gcc";
Gccs.emplace_back(T.str());
Gccs.back() += "-gcc";
Gccs.emplace_back(T.getArchName());
Gccs.back() += "-w64-mingw32-gcc";
Gccs.emplace_back(T.getArchName());
Gccs.back() += "-w64-mingw32ucrt-gcc";
Gccs.emplace_back("mingw32-gcc");
// Please do not add "gcc" here
for (StringRef CandidateGcc : Gccs)
if (llvm::ErrorOr<std::string> GPPName = llvm::sys::findProgramByName(CandidateGcc))
return GPPName;
return make_error_code(std::errc::no_such_file_or_directory);
}
static llvm::ErrorOr<std::string>
findClangRelativeSysroot(const Driver &D, const llvm::Triple &LiteralTriple,
const llvm::Triple &T, std::string &SubdirName) {
llvm::SmallVector<llvm::SmallString<32>, 4> Subdirs;
Subdirs.emplace_back(LiteralTriple.str());
Subdirs.emplace_back(T.str());
Subdirs.emplace_back(T.getArchName());
Subdirs.back() += "-w64-mingw32";
Subdirs.emplace_back(T.getArchName());
Subdirs.back() += "-w64-mingw32ucrt";
StringRef ClangRoot = llvm::sys::path::parent_path(D.getInstalledDir());
StringRef Sep = llvm::sys::path::get_separator();
for (StringRef CandidateSubdir : Subdirs) {
if (llvm::sys::fs::is_directory(ClangRoot + Sep + CandidateSubdir)) {
SubdirName = std::string(CandidateSubdir);
return (ClangRoot + Sep + CandidateSubdir).str();
}
}
return make_error_code(std::errc::no_such_file_or_directory);
}
static bool looksLikeMinGWSysroot(const std::string &Directory) {
StringRef Sep = llvm::sys::path::get_separator();
if (!llvm::sys::fs::exists(Directory + Sep + "include" + Sep + "_mingw.h"))
return false;
if (!llvm::sys::fs::exists(Directory + Sep + "lib" + Sep + "libkernel32.a"))
return false;
return true;
}
toolchains::MinGW::MinGW(const Driver &D, const llvm::Triple &Triple,
const ArgList &Args)
: ToolChain(D, Triple, Args), CudaInstallation(D, Triple, Args),
RocmInstallation(D, Triple, Args) {
getProgramPaths().push_back(getDriver().getInstalledDir());
std::string InstallBase =
std::string(llvm::sys::path::parent_path(getDriver().getInstalledDir()));
// The sequence for detecting a sysroot here should be kept in sync with
// the testTriple function below.
llvm::Triple LiteralTriple = getLiteralTriple(D, getTriple());
if (getDriver().SysRoot.size())
Base = getDriver().SysRoot;
// Look for <clang-bin>/../<triplet>; if found, use <clang-bin>/.. as the
// base as it could still be a base for a gcc setup with libgcc.
else if (llvm::ErrorOr<std::string> TargetSubdir = findClangRelativeSysroot(
getDriver(), LiteralTriple, getTriple(), SubdirName))
Base = std::string(llvm::sys::path::parent_path(TargetSubdir.get()));
// If the install base of Clang seems to have mingw sysroot files directly
// in the toplevel include and lib directories, use this as base instead of
// looking for a triple prefixed GCC in the path.
else if (looksLikeMinGWSysroot(InstallBase))
Base = InstallBase;
else if (llvm::ErrorOr<std::string> GPPName =
findGcc(LiteralTriple, getTriple()))
Base = std::string(llvm::sys::path::parent_path(
llvm::sys::path::parent_path(GPPName.get())));
else
Base = InstallBase;
Base += llvm::sys::path::get_separator();
findGccLibDir(LiteralTriple);
TripleDirName = SubdirName;
// GccLibDir must precede Base/lib so that the
// correct crtbegin.o ,cetend.o would be found.
getFilePaths().push_back(GccLibDir);
// openSUSE/Fedora
std::string CandidateSubdir = SubdirName + "/sys-root/mingw";
if (getDriver().getVFS().exists(Base + CandidateSubdir))
SubdirName = CandidateSubdir;
getFilePaths().push_back(
(Base + SubdirName + llvm::sys::path::get_separator() + "lib").str());
// Gentoo
getFilePaths().push_back(
(Base + SubdirName + llvm::sys::path::get_separator() + "mingw/lib").str());
// Only include <base>/lib if we're not cross compiling (not even for
// windows->windows to a different arch), or if the sysroot has been set
// (where we presume the user has pointed it at an arch specific
// subdirectory).
if (!::isCrossCompiling(getTriple(), /*RequireArchMatch=*/true) ||
getDriver().SysRoot.size())
getFilePaths().push_back(Base + "lib");
NativeLLVMSupport =
Args.getLastArgValue(options::OPT_fuse_ld_EQ, CLANG_DEFAULT_LINKER)
.equals_insensitive("lld");
}
Tool *toolchains::MinGW::getTool(Action::ActionClass AC) const {
switch (AC) {
case Action::PreprocessJobClass:
if (!Preprocessor)
Preprocessor.reset(new tools::gcc::Preprocessor(*this));
return Preprocessor.get();
case Action::CompileJobClass:
if (!Compiler)
Compiler.reset(new tools::gcc::Compiler(*this));
return Compiler.get();
default:
return ToolChain::getTool(AC);
}
}
Tool *toolchains::MinGW::buildAssembler() const {
return new tools::MinGW::Assembler(*this);
}
Tool *toolchains::MinGW::buildLinker() const {
return new tools::MinGW::Linker(*this);
}
bool toolchains::MinGW::HasNativeLLVMSupport() const {
return NativeLLVMSupport;
}
ToolChain::UnwindTableLevel
toolchains::MinGW::getDefaultUnwindTableLevel(const ArgList &Args) const {
Arg *ExceptionArg = Args.getLastArg(options::OPT_fsjlj_exceptions,
options::OPT_fseh_exceptions,
options::OPT_fdwarf_exceptions);
if (ExceptionArg &&
ExceptionArg->getOption().matches(options::OPT_fseh_exceptions))
return UnwindTableLevel::Asynchronous;
if (getArch() == llvm::Triple::x86_64 || getArch() == llvm::Triple::arm ||
getArch() == llvm::Triple::thumb || getArch() == llvm::Triple::aarch64)
return UnwindTableLevel::Asynchronous;
return UnwindTableLevel::None;
}
bool toolchains::MinGW::isPICDefault() const {
return getArch() == llvm::Triple::x86_64 ||
getArch() == llvm::Triple::aarch64;
}
bool toolchains::MinGW::isPIEDefault(const llvm::opt::ArgList &Args) const {
return false;
}
bool toolchains::MinGW::isPICDefaultForced() const { return true; }
llvm::ExceptionHandling
toolchains::MinGW::GetExceptionModel(const ArgList &Args) const {
if (getArch() == llvm::Triple::x86_64 || getArch() == llvm::Triple::aarch64 ||
getArch() == llvm::Triple::arm || getArch() == llvm::Triple::thumb)
return llvm::ExceptionHandling::WinEH;
return llvm::ExceptionHandling::DwarfCFI;
}
SanitizerMask toolchains::MinGW::getSupportedSanitizers() const {
SanitizerMask Res = ToolChain::getSupportedSanitizers();
Res |= SanitizerKind::Address;
Res |= SanitizerKind::PointerCompare;
Res |= SanitizerKind::PointerSubtract;
Res |= SanitizerKind::Vptr;
return Res;
}
void toolchains::MinGW::AddCudaIncludeArgs(const ArgList &DriverArgs,
ArgStringList &CC1Args) const {
CudaInstallation->AddCudaIncludeArgs(DriverArgs, CC1Args);
}
void toolchains::MinGW::AddHIPIncludeArgs(const ArgList &DriverArgs,
ArgStringList &CC1Args) const {
RocmInstallation->AddHIPIncludeArgs(DriverArgs, CC1Args);
}
void toolchains::MinGW::printVerboseInfo(raw_ostream &OS) const {
CudaInstallation->print(OS);
RocmInstallation->print(OS);
}
// Include directories for various hosts:
// Windows, mingw.org
// c:\mingw\lib\gcc\mingw32\4.8.1\include\c++
// c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\mingw32
// c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\backward
// c:\mingw\include
// c:\mingw\mingw32\include
// Windows, mingw-w64 mingw-builds
// c:\mingw32\i686-w64-mingw32\include
// c:\mingw32\i686-w64-mingw32\include\c++
// c:\mingw32\i686-w64-mingw32\include\c++\i686-w64-mingw32
// c:\mingw32\i686-w64-mingw32\include\c++\backward
// Windows, mingw-w64 msys2
// c:\msys64\mingw32\include
// c:\msys64\mingw32\i686-w64-mingw32\include
// c:\msys64\mingw32\include\c++\4.9.2
// c:\msys64\mingw32\include\c++\4.9.2\i686-w64-mingw32
// c:\msys64\mingw32\include\c++\4.9.2\backward
// openSUSE
// /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/include/c++
// /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/include/c++/x86_64-w64-mingw32
// /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/include/c++/backward
// /usr/x86_64-w64-mingw32/sys-root/mingw/include
// Arch Linux
// /usr/i686-w64-mingw32/include/c++/5.1.0
// /usr/i686-w64-mingw32/include/c++/5.1.0/i686-w64-mingw32
// /usr/i686-w64-mingw32/include/c++/5.1.0/backward
// /usr/i686-w64-mingw32/include
// Ubuntu
// /usr/include/c++/4.8
// /usr/include/c++/4.8/x86_64-w64-mingw32
// /usr/include/c++/4.8/backward
// /usr/x86_64-w64-mingw32/include
// Fedora
// /usr/x86_64-w64-mingw32ucrt/sys-root/mingw/include/c++/x86_64-w64-mingw32ucrt
// /usr/x86_64-w64-mingw32ucrt/sys-root/mingw/include/c++/backward
// /usr/x86_64-w64-mingw32ucrt/sys-root/mingw/include
// /usr/lib/gcc/x86_64-w64-mingw32ucrt/12.2.1/include-fixed
void toolchains::MinGW::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
ArgStringList &CC1Args) const {
if (DriverArgs.hasArg(options::OPT_nostdinc))
return;
if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
SmallString<1024> P(getDriver().ResourceDir);
llvm::sys::path::append(P, "include");
addSystemInclude(DriverArgs, CC1Args, P.str());
}
if (DriverArgs.hasArg(options::OPT_nostdlibinc))
return;
addSystemInclude(DriverArgs, CC1Args,
Base + SubdirName + llvm::sys::path::get_separator() +
"include");
// Gentoo
addSystemInclude(DriverArgs, CC1Args,
Base + SubdirName + llvm::sys::path::get_separator() + "usr/include");
// Only include <base>/include if we're not cross compiling (but do allow it
// if we're on Windows and building for Windows on another architecture),
// or if the sysroot has been set (where we presume the user has pointed it
// at an arch specific subdirectory).
if (!::isCrossCompiling(getTriple(), /*RequireArchMatch=*/false) ||
getDriver().SysRoot.size())
addSystemInclude(DriverArgs, CC1Args, Base + "include");
}
void toolchains::MinGW::addClangTargetOptions(
const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args,
Action::OffloadKind DeviceOffloadKind) const {
if (Arg *A = DriverArgs.getLastArg(options::OPT_mguard_EQ)) {
StringRef GuardArgs = A->getValue();
if (GuardArgs == "none") {
// Do nothing.
} else if (GuardArgs == "cf") {
// Emit CFG instrumentation and the table of address-taken functions.
CC1Args.push_back("-cfguard");
} else if (GuardArgs == "cf-nochecks") {
// Emit only the table of address-taken functions.
CC1Args.push_back("-cfguard-no-checks");
} else {
getDriver().Diag(diag::err_drv_unsupported_option_argument)
<< A->getSpelling() << GuardArgs;
}
}
CC1Args.push_back("-fno-use-init-array");
for (auto Opt : {options::OPT_mthreads, options::OPT_mwindows,
options::OPT_mconsole, options::OPT_mdll}) {
if (Arg *A = DriverArgs.getLastArgNoClaim(Opt))
A->ignoreTargetSpecific();
}
}
void toolchains::MinGW::AddClangCXXStdlibIncludeArgs(
const ArgList &DriverArgs, ArgStringList &CC1Args) const {
if (DriverArgs.hasArg(options::OPT_nostdinc, options::OPT_nostdlibinc,
options::OPT_nostdincxx))
return;
StringRef Slash = llvm::sys::path::get_separator();
switch (GetCXXStdlibType(DriverArgs)) {
case ToolChain::CST_Libcxx: {
std::string TargetDir = (Base + "include" + Slash + getTripleString() +
Slash + "c++" + Slash + "v1")
.str();
if (getDriver().getVFS().exists(TargetDir))
addSystemInclude(DriverArgs, CC1Args, TargetDir);
addSystemInclude(DriverArgs, CC1Args,
Base + SubdirName + Slash + "include" + Slash + "c++" +
Slash + "v1");
addSystemInclude(DriverArgs, CC1Args,
Base + "include" + Slash + "c++" + Slash + "v1");
break;
}
case ToolChain::CST_Libstdcxx:
llvm::SmallVector<llvm::SmallString<1024>, 7> CppIncludeBases;
CppIncludeBases.emplace_back(Base);
llvm::sys::path::append(CppIncludeBases[0], SubdirName, "include", "c++");
CppIncludeBases.emplace_back(Base);
llvm::sys::path::append(CppIncludeBases[1], SubdirName, "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++");
CppIncludeBases.emplace_back(GccLibDir);
llvm::sys::path::append(CppIncludeBases[4], "include",
"g++-v" + GccVer.Text);
CppIncludeBases.emplace_back(GccLibDir);
llvm::sys::path::append(CppIncludeBases[5], "include",
"g++-v" + GccVer.MajorStr + "." + GccVer.MinorStr);
CppIncludeBases.emplace_back(GccLibDir);
llvm::sys::path::append(CppIncludeBases[6], "include",
"g++-v" + GccVer.MajorStr);
for (auto &CppIncludeBase : CppIncludeBases) {
addSystemInclude(DriverArgs, CC1Args, CppIncludeBase);
CppIncludeBase += Slash;
addSystemInclude(DriverArgs, CC1Args, CppIncludeBase + TripleDirName);
addSystemInclude(DriverArgs, CC1Args, CppIncludeBase + "backward");
}
break;
}
}
static bool testTriple(const Driver &D, const llvm::Triple &Triple,
const ArgList &Args) {
// If an explicit sysroot is set, that will be used and we shouldn't try to
// detect anything else.
std::string SubdirName;
if (D.SysRoot.size())
return true;
llvm::Triple LiteralTriple = getLiteralTriple(D, Triple);
std::string InstallBase =
std::string(llvm::sys::path::parent_path(D.getInstalledDir()));
if (llvm::ErrorOr<std::string> TargetSubdir =
findClangRelativeSysroot(D, LiteralTriple, Triple, SubdirName))
return true;
// If the install base itself looks like a mingw sysroot, we'll use that
// - don't use any potentially unrelated gcc to influence what triple to use.
if (looksLikeMinGWSysroot(InstallBase))
return false;
if (llvm::ErrorOr<std::string> GPPName = findGcc(LiteralTriple, Triple))
return true;
// If we neither found a colocated sysroot or a matching gcc executable,
// conclude that we can't know if this is the correct spelling of the triple.
return false;
}
static llvm::Triple adjustTriple(const Driver &D, const llvm::Triple &Triple,
const ArgList &Args) {
// First test if the original triple can find a sysroot with the triple
// name.
if (testTriple(D, Triple, Args))
return Triple;
llvm::SmallVector<llvm::StringRef, 3> Archs;
// If not, test a couple other possible arch names that might be what was
// intended.
if (Triple.getArch() == llvm::Triple::x86) {
Archs.emplace_back("i386");
Archs.emplace_back("i586");
Archs.emplace_back("i686");
} else if (Triple.getArch() == llvm::Triple::arm ||
Triple.getArch() == llvm::Triple::thumb) {
Archs.emplace_back("armv7");
}
for (auto A : Archs) {
llvm::Triple TestTriple(Triple);
TestTriple.setArchName(A);
if (testTriple(D, TestTriple, Args))
return TestTriple;
}
// If none was found, just proceed with the original value.
return Triple;
}
void toolchains::MinGW::fixTripleArch(const Driver &D, llvm::Triple &Triple,
const ArgList &Args) {
if (Triple.getArch() == llvm::Triple::x86 ||
Triple.getArch() == llvm::Triple::arm ||
Triple.getArch() == llvm::Triple::thumb)
Triple = adjustTriple(D, Triple, Args);
}
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