Support mingw-w64 and mingw.org toolchains at any install location.
No more hardcoded paths: clang will use -sysroot as gcc root location if
provided. Otherwise, it will search for gcc on the path. If not found it
will use the driver installed location.
http://reviews.llvm.org/D5268
Patch by Ruben Van Boxem, Martell Malone, Yaron Keren.
Reviewed by Reid Kleckner.
llvm-svn: 241241
diff --git a/clang/lib/Driver/MinGWToolChain.cpp b/clang/lib/Driver/MinGWToolChain.cpp
new file mode 100644
index 0000000..606508d
--- /dev/null
+++ b/clang/lib/Driver/MinGWToolChain.cpp
@@ -0,0 +1,143 @@
+//===--- 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());
+
+ 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();
+ llvm::SmallString<1024> LibDir(Base);
+ llvm::sys::path::append(LibDir, "lib", "gcc");
+ LibDir += llvm::sys::path::get_separator();
+
+ // First look for mingw-w64.
+ Arch = getTriple().getArchName();
+ Arch += "-w64-mingw32";
+ std::error_code EC;
+ llvm::sys::fs::directory_iterator MingW64Entry(LibDir + Arch, EC);
+ if (!EC) {
+ GccLibDir = MingW64Entry->path();
+ } else {
+ // If mingw-w64 not found, try looking for mingw.org.
+ Arch = "mingw32";
+ llvm::sys::fs::directory_iterator MingwOrgEntry(LibDir + Arch, EC);
+ if (!EC)
+ GccLibDir = MingwOrgEntry->path();
+ }
+ 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 + "lib");
+ getFilePaths().push_back(Base + Arch + "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;
+}
+
+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";
+ 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;
+
+ llvm::SmallString<1024> IncludeDir;
+ for (bool MingW64 : {true, false}) {
+ if (MingW64)
+ IncludeDir = Base + Arch;
+ else
+ IncludeDir = GccLibDir;
+ llvm::sys::path::append(IncludeDir, "include", "c++");
+ addSystemInclude(DriverArgs, CC1Args, IncludeDir.str());
+ IncludeDir += llvm::sys::path::get_separator();
+ addSystemInclude(DriverArgs, CC1Args, IncludeDir.str() + Arch);
+ addSystemInclude(DriverArgs, CC1Args, IncludeDir.str() + "backward");
+ }
+}