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//===--- 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;
MinGW::MinGW(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
: ToolChain(D, Triple, Args) {
getProgramPaths().push_back(getDriver().getInstalledDir());
llvm::SmallString<1024> LibDir;
// In Windows there aren't any standard install locations, we search
// for gcc on the PATH. In Linux the base is always /usr.
#ifdef LLVM_ON_WIN32
if (getDriver().SysRoot.size())
Base = getDriver().SysRoot;
else if (llvm::ErrorOr<std::string> GPPName =
llvm::sys::findProgramByName("gcc"))
Base = llvm::sys::path::parent_path(
llvm::sys::path::parent_path(GPPName.get()));
else
Base = llvm::sys::path::parent_path(getDriver().getInstalledDir());
Base += llvm::sys::path::get_separator();
#else
if (getDriver().SysRoot.size())
Base = getDriver().SysRoot;
else
Base = "/usr/";
#endif
// By default Arch is for mingw-w64.
Arch = (getTriple().getArchName() + "-w64-mingw32").str();
// lib: Arch Linux, Ubuntu, Windows
// lib64: openSUSE Linux
for (StringRef Lib : {"lib", "lib64"}) {
LibDir = Base;
llvm::sys::path::append(LibDir, Lib, "gcc");
LibDir += llvm::sys::path::get_separator();
std::error_code EC;
// First look for mingw-w64.
llvm::sys::fs::directory_iterator MingW64Entry(LibDir + Arch, EC);
if (!EC) {
GccLibDir = MingW64Entry->path();
Ver = llvm::sys::path::filename(GccLibDir);
break;
}
// If mingw-w64 not found, try looking for mingw.org.
llvm::sys::fs::directory_iterator MingwOrgEntry(LibDir + "mingw32", EC);
if (!EC) {
GccLibDir = MingwOrgEntry->path();
// Replace Arch with mingw32 arch.
Arch = "mingw32";
break;
}
}
Arch += llvm::sys::path::get_separator();
// 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 + "lib");
#ifdef LLVM_ON_WIN32
getFilePaths().push_back(Base + "lib");
#else
// openSUSE
getFilePaths().push_back(Base + Arch + "sys-root/mingw/lib");
#endif
}
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;
}
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;
llvm::SmallString<1024> IncludeDir(GccLibDir);
llvm::sys::path::append(IncludeDir, "include");
addSystemInclude(DriverArgs, CC1Args, IncludeDir.c_str());
IncludeDir += "-fixed";
#ifdef LLVM_ON_UNIX
// openSUSE
addSystemInclude(DriverArgs, CC1Args,
"/usr/x86_64-w64-mingw32/sys-root/mingw/include");
#endif
addSystemInclude(DriverArgs, CC1Args, IncludeDir.c_str());
addSystemInclude(DriverArgs, CC1Args, Base + Arch + "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;
// C++ includes locations are different with almost every mingw distribution.
//
// Windows
// -------
// mingw-w64 mingw-builds: $sysroot/i686-w64-mingw32/include/c++
// mingw-w64 msys2: $sysroot/include/c++/4.9.2
// mingw.org: GccLibDir/include/c++
//
// Linux
// -----
// openSUSE: GccLibDir/include/c++
// Arch: $sysroot/i686-w64-mingw32/include/c++/5.1.0
//
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) {
CppIncludeBase += llvm::sys::path::get_separator();
addSystemInclude(DriverArgs, CC1Args, CppIncludeBase);
addSystemInclude(DriverArgs, CC1Args, CppIncludeBase + Arch);
addSystemInclude(DriverArgs, CC1Args, CppIncludeBase + "backward");
}
}
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