1 //===--- MinGW.cpp - MinGWToolChain Implementation ------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 #include "InputInfo.h"
12 #include "CommonArgs.h"
13 #include "clang/Driver/Compilation.h"
14 #include "clang/Driver/Driver.h"
15 #include "clang/Driver/DriverDiagnostic.h"
16 #include "clang/Driver/Options.h"
17 #include "llvm/Option/ArgList.h"
18 #include "llvm/Support/FileSystem.h"
19 #include "llvm/Support/Path.h"
20 #include <system_error>
22 using namespace clang::diag;
23 using namespace clang::driver;
24 using namespace clang;
25 using namespace llvm::opt;
28 void tools::MinGW::Assembler::ConstructJob(Compilation &C, const JobAction &JA,
29 const InputInfo &Output,
30 const InputInfoList &Inputs,
32 const char *LinkingOutput) const {
33 claimNoWarnArgs(Args);
34 ArgStringList CmdArgs;
36 if (getToolChain().getArch() == llvm::Triple::x86) {
37 CmdArgs.push_back("--32");
38 } else if (getToolChain().getArch() == llvm::Triple::x86_64) {
39 CmdArgs.push_back("--64");
42 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
44 CmdArgs.push_back("-o");
45 CmdArgs.push_back(Output.getFilename());
47 for (const auto &II : Inputs)
48 CmdArgs.push_back(II.getFilename());
50 const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as"));
51 C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
53 if (Args.hasArg(options::OPT_gsplit_dwarf))
54 SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output,
55 SplitDebugName(Args, Inputs[0]));
58 void tools::MinGW::Linker::AddLibGCC(const ArgList &Args,
59 ArgStringList &CmdArgs) const {
60 if (Args.hasArg(options::OPT_mthreads))
61 CmdArgs.push_back("-lmingwthrd");
62 CmdArgs.push_back("-lmingw32");
64 // Make use of compiler-rt if --rtlib option is used
65 ToolChain::RuntimeLibType RLT = getToolChain().GetRuntimeLibType(Args);
66 if (RLT == ToolChain::RLT_Libgcc) {
67 bool Static = Args.hasArg(options::OPT_static_libgcc) ||
68 Args.hasArg(options::OPT_static);
69 bool Shared = Args.hasArg(options::OPT_shared);
70 bool CXX = getToolChain().getDriver().CCCIsCXX();
72 if (Static || (!CXX && !Shared)) {
73 CmdArgs.push_back("-lgcc");
74 CmdArgs.push_back("-lgcc_eh");
76 CmdArgs.push_back("-lgcc_s");
77 CmdArgs.push_back("-lgcc");
80 AddRunTimeLibs(getToolChain(), getToolChain().getDriver(), CmdArgs, Args);
83 CmdArgs.push_back("-lmoldname");
84 CmdArgs.push_back("-lmingwex");
85 for (auto Lib : Args.getAllArgValues(options::OPT_l))
86 if (StringRef(Lib).startswith("msvcr") || StringRef(Lib).startswith("ucrt"))
88 CmdArgs.push_back("-lmsvcrt");
91 void tools::MinGW::Linker::ConstructJob(Compilation &C, const JobAction &JA,
92 const InputInfo &Output,
93 const InputInfoList &Inputs,
95 const char *LinkingOutput) const {
96 const ToolChain &TC = getToolChain();
97 const Driver &D = TC.getDriver();
98 // const SanitizerArgs &Sanitize = TC.getSanitizerArgs();
100 ArgStringList CmdArgs;
102 // Silence warning for "clang -g foo.o -o foo"
103 Args.ClaimAllArgs(options::OPT_g_Group);
104 // and "clang -emit-llvm foo.o -o foo"
105 Args.ClaimAllArgs(options::OPT_emit_llvm);
106 // and for "clang -w foo.o -o foo". Other warning options are already
107 // handled somewhere else.
108 Args.ClaimAllArgs(options::OPT_w);
110 if (!D.SysRoot.empty())
111 CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot));
113 if (Args.hasArg(options::OPT_s))
114 CmdArgs.push_back("-s");
116 CmdArgs.push_back("-m");
117 switch (TC.getArch()) {
118 case llvm::Triple::x86:
119 CmdArgs.push_back("i386pe");
121 case llvm::Triple::x86_64:
122 CmdArgs.push_back("i386pep");
124 case llvm::Triple::arm:
125 case llvm::Triple::thumb:
126 // FIXME: this is incorrect for WinCE
127 CmdArgs.push_back("thumb2pe");
129 case llvm::Triple::aarch64:
130 CmdArgs.push_back("arm64pe");
133 llvm_unreachable("Unsupported target architecture.");
136 if (Args.hasArg(options::OPT_mwindows)) {
137 CmdArgs.push_back("--subsystem");
138 CmdArgs.push_back("windows");
139 } else if (Args.hasArg(options::OPT_mconsole)) {
140 CmdArgs.push_back("--subsystem");
141 CmdArgs.push_back("console");
144 if (Args.hasArg(options::OPT_mdll))
145 CmdArgs.push_back("--dll");
146 else if (Args.hasArg(options::OPT_shared))
147 CmdArgs.push_back("--shared");
148 if (Args.hasArg(options::OPT_static))
149 CmdArgs.push_back("-Bstatic");
151 CmdArgs.push_back("-Bdynamic");
152 if (Args.hasArg(options::OPT_mdll) || Args.hasArg(options::OPT_shared)) {
153 CmdArgs.push_back("-e");
154 if (TC.getArch() == llvm::Triple::x86)
155 CmdArgs.push_back("_DllMainCRTStartup@12");
157 CmdArgs.push_back("DllMainCRTStartup");
158 CmdArgs.push_back("--enable-auto-image-base");
161 CmdArgs.push_back("-o");
162 CmdArgs.push_back(Output.getFilename());
164 Args.AddAllArgs(CmdArgs, options::OPT_e);
165 // FIXME: add -N, -n flags
166 Args.AddLastArg(CmdArgs, options::OPT_r);
167 Args.AddLastArg(CmdArgs, options::OPT_s);
168 Args.AddLastArg(CmdArgs, options::OPT_t);
169 Args.AddAllArgs(CmdArgs, options::OPT_u_Group);
170 Args.AddLastArg(CmdArgs, options::OPT_Z_Flag);
172 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
173 if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_mdll)) {
174 CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("dllcrt2.o")));
176 if (Args.hasArg(options::OPT_municode))
177 CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crt2u.o")));
179 CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crt2.o")));
181 if (Args.hasArg(options::OPT_pg))
182 CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("gcrt2.o")));
183 CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crtbegin.o")));
186 Args.AddAllArgs(CmdArgs, options::OPT_L);
187 TC.AddFilePathLibArgs(Args, CmdArgs);
188 AddLinkerInputs(TC, Inputs, Args, CmdArgs, JA);
190 // TODO: Add ASan stuff here
192 // TODO: Add profile stuff here
194 if (TC.ShouldLinkCXXStdlib(Args)) {
195 bool OnlyLibstdcxxStatic = Args.hasArg(options::OPT_static_libstdcxx) &&
196 !Args.hasArg(options::OPT_static);
197 if (OnlyLibstdcxxStatic)
198 CmdArgs.push_back("-Bstatic");
199 TC.AddCXXStdlibLibArgs(Args, CmdArgs);
200 if (OnlyLibstdcxxStatic)
201 CmdArgs.push_back("-Bdynamic");
204 bool HasWindowsApp = false;
205 for (auto Lib : Args.getAllArgValues(options::OPT_l)) {
206 if (Lib == "windowsapp") {
207 HasWindowsApp = true;
212 if (!Args.hasArg(options::OPT_nostdlib)) {
213 if (!Args.hasArg(options::OPT_nodefaultlibs)) {
214 if (Args.hasArg(options::OPT_static))
215 CmdArgs.push_back("--start-group");
217 if (Args.hasArg(options::OPT_fstack_protector) ||
218 Args.hasArg(options::OPT_fstack_protector_strong) ||
219 Args.hasArg(options::OPT_fstack_protector_all)) {
220 CmdArgs.push_back("-lssp_nonshared");
221 CmdArgs.push_back("-lssp");
223 if (Args.hasArg(options::OPT_fopenmp))
224 CmdArgs.push_back("-lgomp");
226 AddLibGCC(Args, CmdArgs);
228 if (Args.hasArg(options::OPT_pg))
229 CmdArgs.push_back("-lgmon");
231 if (Args.hasArg(options::OPT_pthread))
232 CmdArgs.push_back("-lpthread");
234 if (!HasWindowsApp) {
235 // Add system libraries. If linking to libwindowsapp.a, that import
236 // library replaces all these and we shouldn't accidentally try to
237 // link to the normal desktop mode dlls.
238 if (Args.hasArg(options::OPT_mwindows)) {
239 CmdArgs.push_back("-lgdi32");
240 CmdArgs.push_back("-lcomdlg32");
242 CmdArgs.push_back("-ladvapi32");
243 CmdArgs.push_back("-lshell32");
244 CmdArgs.push_back("-luser32");
245 CmdArgs.push_back("-lkernel32");
248 if (Args.hasArg(options::OPT_static))
249 CmdArgs.push_back("--end-group");
251 AddLibGCC(Args, CmdArgs);
254 if (!Args.hasArg(options::OPT_nostartfiles)) {
255 // Add crtfastmath.o if available and fast math is enabled.
256 TC.AddFastMathRuntimeIfAvailable(Args, CmdArgs);
258 CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crtend.o")));
261 const char *Exec = Args.MakeArgString(TC.GetLinkerPath());
262 C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
265 // Simplified from Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple.
266 static bool findGccVersion(StringRef LibDir, std::string &GccLibDir,
268 auto Version = toolchains::Generic_GCC::GCCVersion::Parse("0.0.0");
270 for (llvm::sys::fs::directory_iterator LI(LibDir, EC), LE; !EC && LI != LE;
271 LI = LI.increment(EC)) {
272 StringRef VersionText = llvm::sys::path::filename(LI->path());
273 auto CandidateVersion =
274 toolchains::Generic_GCC::GCCVersion::Parse(VersionText);
275 if (CandidateVersion.Major == -1)
277 if (CandidateVersion <= Version)
280 GccLibDir = LI->path();
285 void toolchains::MinGW::findGccLibDir() {
286 llvm::SmallVector<llvm::SmallString<32>, 2> Archs;
287 Archs.emplace_back(getTriple().getArchName());
288 Archs[0] += "-w64-mingw32";
289 Archs.emplace_back("mingw32");
291 Arch = Archs[0].str();
292 // lib: Arch Linux, Ubuntu, Windows
293 // lib64: openSUSE Linux
294 for (StringRef CandidateLib : {"lib", "lib64"}) {
295 for (StringRef CandidateArch : Archs) {
296 llvm::SmallString<1024> LibDir(Base);
297 llvm::sys::path::append(LibDir, CandidateLib, "gcc", CandidateArch);
298 if (findGccVersion(LibDir, GccLibDir, Ver)) {
299 Arch = CandidateArch;
306 llvm::ErrorOr<std::string> toolchains::MinGW::findGcc() {
307 llvm::SmallVector<llvm::SmallString<32>, 2> Gccs;
308 Gccs.emplace_back(getTriple().getArchName());
309 Gccs[0] += "-w64-mingw32-gcc";
310 Gccs.emplace_back("mingw32-gcc");
311 // Please do not add "gcc" here
312 for (StringRef CandidateGcc : Gccs)
313 if (llvm::ErrorOr<std::string> GPPName = llvm::sys::findProgramByName(CandidateGcc))
315 return make_error_code(std::errc::no_such_file_or_directory);
318 llvm::ErrorOr<std::string> toolchains::MinGW::findClangRelativeSysroot() {
319 llvm::SmallVector<llvm::SmallString<32>, 2> Subdirs;
320 Subdirs.emplace_back(getTriple().str());
321 Subdirs.emplace_back(getTriple().getArchName());
322 Subdirs[1] += "-w64-mingw32";
323 StringRef ClangRoot =
324 llvm::sys::path::parent_path(getDriver().getInstalledDir());
325 StringRef Sep = llvm::sys::path::get_separator();
326 for (StringRef CandidateSubdir : Subdirs) {
327 if (llvm::sys::fs::is_directory(ClangRoot + Sep + CandidateSubdir)) {
328 Arch = CandidateSubdir;
329 return (ClangRoot + Sep + CandidateSubdir).str();
332 return make_error_code(std::errc::no_such_file_or_directory);
335 toolchains::MinGW::MinGW(const Driver &D, const llvm::Triple &Triple,
337 : ToolChain(D, Triple, Args), CudaInstallation(D, Triple, Args) {
338 getProgramPaths().push_back(getDriver().getInstalledDir());
340 if (getDriver().SysRoot.size())
341 Base = getDriver().SysRoot;
342 // Look for <clang-bin>/../<triplet>; if found, use <clang-bin>/.. as the
343 // base as it could still be a base for a gcc setup with libgcc.
344 else if (llvm::ErrorOr<std::string> TargetSubdir = findClangRelativeSysroot())
345 Base = llvm::sys::path::parent_path(TargetSubdir.get());
346 else if (llvm::ErrorOr<std::string> GPPName = findGcc())
347 Base = llvm::sys::path::parent_path(
348 llvm::sys::path::parent_path(GPPName.get()));
350 Base = llvm::sys::path::parent_path(getDriver().getInstalledDir());
352 Base += llvm::sys::path::get_separator();
354 // GccLibDir must precede Base/lib so that the
355 // correct crtbegin.o ,cetend.o would be found.
356 getFilePaths().push_back(GccLibDir);
357 getFilePaths().push_back(
358 (Base + Arch + llvm::sys::path::get_separator() + "lib").str());
359 getFilePaths().push_back(Base + "lib");
361 getFilePaths().push_back(Base + Arch + "/sys-root/mingw/lib");
364 bool toolchains::MinGW::IsIntegratedAssemblerDefault() const { return true; }
366 Tool *toolchains::MinGW::getTool(Action::ActionClass AC) const {
368 case Action::PreprocessJobClass:
370 Preprocessor.reset(new tools::gcc::Preprocessor(*this));
371 return Preprocessor.get();
372 case Action::CompileJobClass:
374 Compiler.reset(new tools::gcc::Compiler(*this));
375 return Compiler.get();
377 return ToolChain::getTool(AC);
381 Tool *toolchains::MinGW::buildAssembler() const {
382 return new tools::MinGW::Assembler(*this);
385 Tool *toolchains::MinGW::buildLinker() const {
386 return new tools::MinGW::Linker(*this);
389 bool toolchains::MinGW::IsUnwindTablesDefault(const ArgList &Args) const {
390 return getArch() == llvm::Triple::x86_64;
393 bool toolchains::MinGW::isPICDefault() const {
394 return getArch() == llvm::Triple::x86_64;
397 bool toolchains::MinGW::isPIEDefault() const { return false; }
399 bool toolchains::MinGW::isPICDefaultForced() const {
400 return getArch() == llvm::Triple::x86_64;
403 llvm::ExceptionHandling
404 toolchains::MinGW::GetExceptionModel(const ArgList &Args) const {
405 if (getArch() == llvm::Triple::x86_64)
406 return llvm::ExceptionHandling::WinEH;
407 return llvm::ExceptionHandling::DwarfCFI;
410 void toolchains::MinGW::AddCudaIncludeArgs(const ArgList &DriverArgs,
411 ArgStringList &CC1Args) const {
412 CudaInstallation.AddCudaIncludeArgs(DriverArgs, CC1Args);
415 void toolchains::MinGW::printVerboseInfo(raw_ostream &OS) const {
416 CudaInstallation.print(OS);
419 // Include directories for various hosts:
421 // Windows, mingw.org
422 // c:\mingw\lib\gcc\mingw32\4.8.1\include\c++
423 // c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\mingw32
424 // c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\backward
426 // c:\mingw\mingw32\include
428 // Windows, mingw-w64 mingw-builds
429 // c:\mingw32\i686-w64-mingw32\include
430 // c:\mingw32\i686-w64-mingw32\include\c++
431 // c:\mingw32\i686-w64-mingw32\include\c++\i686-w64-mingw32
432 // c:\mingw32\i686-w64-mingw32\include\c++\backward
434 // Windows, mingw-w64 msys2
435 // c:\msys64\mingw32\include
436 // c:\msys64\mingw32\i686-w64-mingw32\include
437 // c:\msys64\mingw32\include\c++\4.9.2
438 // c:\msys64\mingw32\include\c++\4.9.2\i686-w64-mingw32
439 // c:\msys64\mingw32\include\c++\4.9.2\backward
442 // /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/include/c++
443 // /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/include/c++/x86_64-w64-mingw32
444 // /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/include/c++/backward
445 // /usr/x86_64-w64-mingw32/sys-root/mingw/include
448 // /usr/i686-w64-mingw32/include/c++/5.1.0
449 // /usr/i686-w64-mingw32/include/c++/5.1.0/i686-w64-mingw32
450 // /usr/i686-w64-mingw32/include/c++/5.1.0/backward
451 // /usr/i686-w64-mingw32/include
454 // /usr/include/c++/4.8
455 // /usr/include/c++/4.8/x86_64-w64-mingw32
456 // /usr/include/c++/4.8/backward
457 // /usr/x86_64-w64-mingw32/include
459 void toolchains::MinGW::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
460 ArgStringList &CC1Args) const {
461 if (DriverArgs.hasArg(options::OPT_nostdinc))
464 if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
465 SmallString<1024> P(getDriver().ResourceDir);
466 llvm::sys::path::append(P, "include");
467 addSystemInclude(DriverArgs, CC1Args, P.str());
470 if (DriverArgs.hasArg(options::OPT_nostdlibinc))
473 if (GetRuntimeLibType(DriverArgs) == ToolChain::RLT_Libgcc) {
475 addSystemInclude(DriverArgs, CC1Args,
476 Base + Arch + "/sys-root/mingw/include");
479 addSystemInclude(DriverArgs, CC1Args,
480 Base + Arch + llvm::sys::path::get_separator() + "include");
481 addSystemInclude(DriverArgs, CC1Args, Base + "include");
484 void toolchains::MinGW::AddClangCXXStdlibIncludeArgs(
485 const ArgList &DriverArgs, ArgStringList &CC1Args) const {
486 if (DriverArgs.hasArg(options::OPT_nostdlibinc) ||
487 DriverArgs.hasArg(options::OPT_nostdincxx))
490 StringRef Slash = llvm::sys::path::get_separator();
492 switch (GetCXXStdlibType(DriverArgs)) {
493 case ToolChain::CST_Libcxx:
494 addSystemInclude(DriverArgs, CC1Args, Base + Arch + Slash + "include" +
495 Slash + "c++" + Slash + "v1");
496 addSystemInclude(DriverArgs, CC1Args,
497 Base + "include" + Slash + "c++" + Slash + "v1");
500 case ToolChain::CST_Libstdcxx:
501 llvm::SmallVector<llvm::SmallString<1024>, 4> CppIncludeBases;
502 CppIncludeBases.emplace_back(Base);
503 llvm::sys::path::append(CppIncludeBases[0], Arch, "include", "c++");
504 CppIncludeBases.emplace_back(Base);
505 llvm::sys::path::append(CppIncludeBases[1], Arch, "include", "c++", Ver);
506 CppIncludeBases.emplace_back(Base);
507 llvm::sys::path::append(CppIncludeBases[2], "include", "c++", Ver);
508 CppIncludeBases.emplace_back(GccLibDir);
509 llvm::sys::path::append(CppIncludeBases[3], "include", "c++");
510 for (auto &CppIncludeBase : CppIncludeBases) {
511 addSystemInclude(DriverArgs, CC1Args, CppIncludeBase);
512 CppIncludeBase += Slash;
513 addSystemInclude(DriverArgs, CC1Args, CppIncludeBase + Arch);
514 addSystemInclude(DriverArgs, CC1Args, CppIncludeBase + "backward");