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[docs] Fix build-docs.sh
[llvm-project.git] / clang / lib / Driver / ToolChains / MinGW.cpp
blobe7710bf12c080e07a3feb5cd04317ace7e7a8f1f
1 //===--- MinGW.cpp - MinGWToolChain Implementation ------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #include "MinGW.h"
10 #include "CommonArgs.h"
11 #include "clang/Config/config.h"
12 #include "clang/Driver/Compilation.h"
13 #include "clang/Driver/Driver.h"
14 #include "clang/Driver/DriverDiagnostic.h"
15 #include "clang/Driver/InputInfo.h"
16 #include "clang/Driver/Options.h"
17 #include "clang/Driver/SanitizerArgs.h"
18 #include "llvm/Option/ArgList.h"
19 #include "llvm/Support/FileSystem.h"
20 #include "llvm/Support/Path.h"
21 #include "llvm/Support/VirtualFileSystem.h"
22 #include <system_error>
23
24 using namespace clang::diag;
25 using namespace clang::driver;
26 using namespace clang;
27 using namespace llvm::opt;
28
29 /// MinGW Tools
30 void tools::MinGW::Assembler::ConstructJob(Compilation &C, const JobAction &JA,
31 const InputInfo &Output,
32 const InputInfoList &Inputs,
33 const ArgList &Args,
34 const char *LinkingOutput) const {
35 claimNoWarnArgs(Args);
36 ArgStringList CmdArgs;
37
38 if (getToolChain().getArch() == llvm::Triple::x86) {
39 CmdArgs.push_back("--32");
40 } else if (getToolChain().getArch() == llvm::Triple::x86_64) {
41 CmdArgs.push_back("--64");
42 }
43
44 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
45
46 CmdArgs.push_back("-o");
47 CmdArgs.push_back(Output.getFilename());
48
49 for (const auto &II : Inputs)
50 CmdArgs.push_back(II.getFilename());
51
52 const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as"));
53 C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(),
54 Exec, CmdArgs, Inputs, Output));
55
56 if (Args.hasArg(options::OPT_gsplit_dwarf))
57 SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output,
58 SplitDebugName(JA, Args, Inputs[0], Output));
59 }
60
61 void tools::MinGW::Linker::AddLibGCC(const ArgList &Args,
62 ArgStringList &CmdArgs) const {
63 if (Args.hasArg(options::OPT_mthreads))
64 CmdArgs.push_back("-lmingwthrd");
65 CmdArgs.push_back("-lmingw32");
66
67 // Make use of compiler-rt if --rtlib option is used
68 ToolChain::RuntimeLibType RLT = getToolChain().GetRuntimeLibType(Args);
69 if (RLT == ToolChain::RLT_Libgcc) {
70 bool Static = Args.hasArg(options::OPT_static_libgcc) ||
71 Args.hasArg(options::OPT_static);
72 bool Shared = Args.hasArg(options::OPT_shared);
73 bool CXX = getToolChain().getDriver().CCCIsCXX();
74
75 if (Static || (!CXX && !Shared)) {
76 CmdArgs.push_back("-lgcc");
77 CmdArgs.push_back("-lgcc_eh");
78 } else {
79 CmdArgs.push_back("-lgcc_s");
80 CmdArgs.push_back("-lgcc");
81 }
82 } else {
83 AddRunTimeLibs(getToolChain(), getToolChain().getDriver(), CmdArgs, Args);
84 }
85
86 CmdArgs.push_back("-lmoldname");
87 CmdArgs.push_back("-lmingwex");
88 for (auto Lib : Args.getAllArgValues(options::OPT_l))
89 if (StringRef(Lib).startswith("msvcr") ||
90 StringRef(Lib).startswith("ucrt") ||
91 StringRef(Lib).startswith("crtdll"))
92 return;
93 CmdArgs.push_back("-lmsvcrt");
94 }
95
96 void tools::MinGW::Linker::ConstructJob(Compilation &C, const JobAction &JA,
97 const InputInfo &Output,
98 const InputInfoList &Inputs,
99 const ArgList &Args,
100 const char *LinkingOutput) const {
101 const ToolChain &TC = getToolChain();
102 const Driver &D = TC.getDriver();
103 const SanitizerArgs &Sanitize = TC.getSanitizerArgs(Args);
104
105 ArgStringList CmdArgs;
106
107 // Silence warning for "clang -g foo.o -o foo"
108 Args.ClaimAllArgs(options::OPT_g_Group);
109 // and "clang -emit-llvm foo.o -o foo"
110 Args.ClaimAllArgs(options::OPT_emit_llvm);
111 // and for "clang -w foo.o -o foo". Other warning options are already
112 // handled somewhere else.
113 Args.ClaimAllArgs(options::OPT_w);
114
115 if (!D.SysRoot.empty())
116 CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot));
117
118 if (Args.hasArg(options::OPT_s))
119 CmdArgs.push_back("-s");
120
121 CmdArgs.push_back("-m");
122 switch (TC.getArch()) {
123 case llvm::Triple::x86:
124 CmdArgs.push_back("i386pe");
125 break;
126 case llvm::Triple::x86_64:
127 CmdArgs.push_back("i386pep");
128 break;
129 case llvm::Triple::arm:
130 case llvm::Triple::thumb:
131 // FIXME: this is incorrect for WinCE
132 CmdArgs.push_back("thumb2pe");
133 break;
134 case llvm::Triple::aarch64:
135 CmdArgs.push_back("arm64pe");
136 break;
137 default:
138 llvm_unreachable("Unsupported target architecture.");
139 }
140
141 Arg *SubsysArg =
142 Args.getLastArg(options::OPT_mwindows, options::OPT_mconsole);
143 if (SubsysArg && SubsysArg->getOption().matches(options::OPT_mwindows)) {
144 CmdArgs.push_back("--subsystem");
145 CmdArgs.push_back("windows");
146 } else if (SubsysArg &&
147 SubsysArg->getOption().matches(options::OPT_mconsole)) {
148 CmdArgs.push_back("--subsystem");
149 CmdArgs.push_back("console");
150 }
151
152 if (Args.hasArg(options::OPT_mdll))
153 CmdArgs.push_back("--dll");
154 else if (Args.hasArg(options::OPT_shared))
155 CmdArgs.push_back("--shared");
156 if (Args.hasArg(options::OPT_static))
157 CmdArgs.push_back("-Bstatic");
158 else
159 CmdArgs.push_back("-Bdynamic");
160 if (Args.hasArg(options::OPT_mdll) || Args.hasArg(options::OPT_shared)) {
161 CmdArgs.push_back("-e");
162 if (TC.getArch() == llvm::Triple::x86)
163 CmdArgs.push_back("_DllMainCRTStartup@12");
164 else
165 CmdArgs.push_back("DllMainCRTStartup");
166 CmdArgs.push_back("--enable-auto-image-base");
167 }
168
169 if (Args.hasArg(options::OPT_Z_Xlinker__no_demangle))
170 CmdArgs.push_back("--no-demangle");
171
172 if (Arg *A = Args.getLastArg(options::OPT_mguard_EQ)) {
173 StringRef GuardArgs = A->getValue();
174 if (GuardArgs == "none")
175 CmdArgs.push_back("--no-guard-cf");
176 else if (GuardArgs == "cf" || GuardArgs == "cf-nochecks")
177 CmdArgs.push_back("--guard-cf");
178 else
179 D.Diag(diag::err_drv_unsupported_option_argument)
180 << A->getSpelling() << GuardArgs;
181 }
182
183 CmdArgs.push_back("-o");
184 const char *OutputFile = Output.getFilename();
185 // GCC implicitly adds an .exe extension if it is given an output file name
186 // that lacks an extension.
187 // GCC used to do this only when the compiler itself runs on windows, but
188 // since GCC 8 it does the same when cross compiling as well.
189 if (!llvm::sys::path::has_extension(OutputFile)) {
190 CmdArgs.push_back(Args.MakeArgString(Twine(OutputFile) + ".exe"));
191 OutputFile = CmdArgs.back();
192 } else
193 CmdArgs.push_back(OutputFile);
194
195 Args.AddAllArgs(CmdArgs, options::OPT_e);
196 // FIXME: add -N, -n flags
197 Args.AddLastArg(CmdArgs, options::OPT_r);
198 Args.AddLastArg(CmdArgs, options::OPT_s);
199 Args.AddLastArg(CmdArgs, options::OPT_t);
200 Args.AddAllArgs(CmdArgs, options::OPT_u_Group);
201 Args.AddLastArg(CmdArgs, options::OPT_Z_Flag);
202
203 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
204 if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_mdll)) {
205 CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("dllcrt2.o")));
206 } else {
207 if (Args.hasArg(options::OPT_municode))
208 CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crt2u.o")));
209 else
210 CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crt2.o")));
211 }
212 if (Args.hasArg(options::OPT_pg))
213 CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("gcrt2.o")));
214 CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crtbegin.o")));
215 }
216
217 Args.AddAllArgs(CmdArgs, options::OPT_L);
218 TC.AddFilePathLibArgs(Args, CmdArgs);
219
220 // Add the compiler-rt library directories if they exist to help
221 // the linker find the various sanitizer, builtin, and profiling runtimes.
222 for (const auto &LibPath : TC.getLibraryPaths()) {
223 if (TC.getVFS().exists(LibPath))
224 CmdArgs.push_back(Args.MakeArgString("-L" + LibPath));
225 }
226 auto CRTPath = TC.getCompilerRTPath();
227 if (TC.getVFS().exists(CRTPath))
228 CmdArgs.push_back(Args.MakeArgString("-L" + CRTPath));
229
230 AddLinkerInputs(TC, Inputs, Args, CmdArgs, JA);
231
232 if (C.getDriver().IsFlangMode()) {
233 addFortranRuntimeLibraryPath(TC, Args, CmdArgs);
234 addFortranRuntimeLibs(TC, CmdArgs);
235 }
236
237 // TODO: Add profile stuff here
238
239 if (TC.ShouldLinkCXXStdlib(Args)) {
240 bool OnlyLibstdcxxStatic = Args.hasArg(options::OPT_static_libstdcxx) &&
241 !Args.hasArg(options::OPT_static);
242 if (OnlyLibstdcxxStatic)
243 CmdArgs.push_back("-Bstatic");
244 TC.AddCXXStdlibLibArgs(Args, CmdArgs);
245 if (OnlyLibstdcxxStatic)
246 CmdArgs.push_back("-Bdynamic");
247 }
248
249 bool HasWindowsApp = false;
250 for (auto Lib : Args.getAllArgValues(options::OPT_l)) {
251 if (Lib == "windowsapp") {
252 HasWindowsApp = true;
253 break;
254 }
255 }
256
257 if (!Args.hasArg(options::OPT_nostdlib)) {
258 if (!Args.hasArg(options::OPT_nodefaultlibs)) {
259 if (Args.hasArg(options::OPT_static))
260 CmdArgs.push_back("--start-group");
261
262 if (Args.hasArg(options::OPT_fstack_protector) ||
263 Args.hasArg(options::OPT_fstack_protector_strong) ||
264 Args.hasArg(options::OPT_fstack_protector_all)) {
265 CmdArgs.push_back("-lssp_nonshared");
266 CmdArgs.push_back("-lssp");
267 }
268
269 if (Args.hasFlag(options::OPT_fopenmp, options::OPT_fopenmp_EQ,
270 options::OPT_fno_openmp, false)) {
271 switch (TC.getDriver().getOpenMPRuntime(Args)) {
272 case Driver::OMPRT_OMP:
273 CmdArgs.push_back("-lomp");
274 break;
275 case Driver::OMPRT_IOMP5:
276 CmdArgs.push_back("-liomp5md");
277 break;
278 case Driver::OMPRT_GOMP:
279 CmdArgs.push_back("-lgomp");
280 break;
281 case Driver::OMPRT_Unknown:
282 // Already diagnosed.
283 break;
284 }
285 }
286
287 AddLibGCC(Args, CmdArgs);
288
289 if (Args.hasArg(options::OPT_pg))
290 CmdArgs.push_back("-lgmon");
291
292 if (Args.hasArg(options::OPT_pthread))
293 CmdArgs.push_back("-lpthread");
294
295 if (Sanitize.needsAsanRt()) {
296 // MinGW always links against a shared MSVCRT.
297 CmdArgs.push_back(TC.getCompilerRTArgString(Args, "asan_dynamic",
298 ToolChain::FT_Shared));
299 CmdArgs.push_back(
300 TC.getCompilerRTArgString(Args, "asan_dynamic_runtime_thunk"));
301 CmdArgs.push_back("--require-defined");
302 CmdArgs.push_back(TC.getArch() == llvm::Triple::x86
303 ? "___asan_seh_interceptor"
304 : "__asan_seh_interceptor");
305 // Make sure the linker consider all object files from the dynamic
306 // runtime thunk.
307 CmdArgs.push_back("--whole-archive");
308 CmdArgs.push_back(
309 TC.getCompilerRTArgString(Args, "asan_dynamic_runtime_thunk"));
310 CmdArgs.push_back("--no-whole-archive");
311 }
312
313 TC.addProfileRTLibs(Args, CmdArgs);
314
315 if (!HasWindowsApp) {
316 // Add system libraries. If linking to libwindowsapp.a, that import
317 // library replaces all these and we shouldn't accidentally try to
318 // link to the normal desktop mode dlls.
319 if (Args.hasArg(options::OPT_mwindows)) {
320 CmdArgs.push_back("-lgdi32");
321 CmdArgs.push_back("-lcomdlg32");
322 }
323 CmdArgs.push_back("-ladvapi32");
324 CmdArgs.push_back("-lshell32");
325 CmdArgs.push_back("-luser32");
326 CmdArgs.push_back("-lkernel32");
327 }
328
329 if (Args.hasArg(options::OPT_static)) {
330 CmdArgs.push_back("--end-group");
331 } else {
332 AddLibGCC(Args, CmdArgs);
333 if (!HasWindowsApp)
334 CmdArgs.push_back("-lkernel32");
335 }
336 }
337
338 if (!Args.hasArg(options::OPT_nostartfiles)) {
339 // Add crtfastmath.o if available and fast math is enabled.
340 TC.addFastMathRuntimeIfAvailable(Args, CmdArgs);
341
342 CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crtend.o")));
343 }
344 }
345 const char *Exec = Args.MakeArgString(TC.GetLinkerPath());
346 C.addCommand(std::make_unique<Command>(JA, *this,
347 ResponseFileSupport::AtFileUTF8(),
348 Exec, CmdArgs, Inputs, Output));
349 }
350
351 // Simplified from Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple.
352 static bool findGccVersion(StringRef LibDir, std::string &GccLibDir,
353 std::string &Ver,
354 toolchains::Generic_GCC::GCCVersion &Version) {
355 Version = toolchains::Generic_GCC::GCCVersion::Parse("0.0.0");
356 std::error_code EC;
357 for (llvm::sys::fs::directory_iterator LI(LibDir, EC), LE; !EC && LI != LE;
358 LI = LI.increment(EC)) {
359 StringRef VersionText = llvm::sys::path::filename(LI->path());
360 auto CandidateVersion =
361 toolchains::Generic_GCC::GCCVersion::Parse(VersionText);
362 if (CandidateVersion.Major == -1)
363 continue;
364 if (CandidateVersion <= Version)
365 continue;
366 Version = CandidateVersion;
367 Ver = std::string(VersionText);
368 GccLibDir = LI->path();
369 }
370 return Ver.size();
371 }
372
373 void toolchains::MinGW::findGccLibDir() {
374 llvm::SmallVector<llvm::SmallString<32>, 2> SubdirNames;
375 SubdirNames.emplace_back(getTriple().getArchName());
376 SubdirNames[0] += "-w64-mingw32";
377 SubdirNames.emplace_back("mingw32");
378 if (SubdirName.empty())
379 SubdirName = std::string(SubdirNames[0].str());
380 // lib: Arch Linux, Ubuntu, Windows
381 // lib64: openSUSE Linux
382 for (StringRef CandidateLib : {"lib", "lib64"}) {
383 for (StringRef CandidateSysroot : SubdirNames) {
384 llvm::SmallString<1024> LibDir(Base);
385 llvm::sys::path::append(LibDir, CandidateLib, "gcc", CandidateSysroot);
386 if (findGccVersion(LibDir, GccLibDir, Ver, GccVer)) {
387 SubdirName = std::string(CandidateSysroot);
388 return;
389 }
390 }
391 }
392 }
393
394 static llvm::ErrorOr<std::string> findGcc(const llvm::Triple &T) {
395 llvm::SmallVector<llvm::SmallString<32>, 2> Gccs;
396 Gccs.emplace_back(T.getArchName());
397 Gccs[0] += "-w64-mingw32-gcc";
398 Gccs.emplace_back("mingw32-gcc");
399 // Please do not add "gcc" here
400 for (StringRef CandidateGcc : Gccs)
401 if (llvm::ErrorOr<std::string> GPPName = llvm::sys::findProgramByName(CandidateGcc))
402 return GPPName;
403 return make_error_code(std::errc::no_such_file_or_directory);
404 }
405
406 static llvm::ErrorOr<std::string>
407 findClangRelativeSysroot(const Driver &D, const llvm::Triple &T,
408 std::string &SubdirName) {
409 llvm::SmallVector<llvm::SmallString<32>, 2> Subdirs;
410 Subdirs.emplace_back(T.str());
411 Subdirs.emplace_back(T.getArchName());
412 Subdirs[1] += "-w64-mingw32";
413 StringRef ClangRoot = llvm::sys::path::parent_path(D.getInstalledDir());
414 StringRef Sep = llvm::sys::path::get_separator();
415 for (StringRef CandidateSubdir : Subdirs) {
416 if (llvm::sys::fs::is_directory(ClangRoot + Sep + CandidateSubdir)) {
417 SubdirName = std::string(CandidateSubdir);
418 return (ClangRoot + Sep + CandidateSubdir).str();
419 }
420 }
421 return make_error_code(std::errc::no_such_file_or_directory);
422 }
423
424 toolchains::MinGW::MinGW(const Driver &D, const llvm::Triple &Triple,
425 const ArgList &Args)
426 : ToolChain(D, Triple, Args), CudaInstallation(D, Triple, Args),
427 RocmInstallation(D, Triple, Args) {
428 getProgramPaths().push_back(getDriver().getInstalledDir());
429
430 // The sequence for detecting a sysroot here should be kept in sync with
431 // the testTriple function below.
432 if (getDriver().SysRoot.size())
433 Base = getDriver().SysRoot;
434 // Look for <clang-bin>/../<triplet>; if found, use <clang-bin>/.. as the
435 // base as it could still be a base for a gcc setup with libgcc.
436 else if (llvm::ErrorOr<std::string> TargetSubdir =
437 findClangRelativeSysroot(getDriver(), getTriple(), SubdirName))
438 Base = std::string(llvm::sys::path::parent_path(TargetSubdir.get()));
439 else if (llvm::ErrorOr<std::string> GPPName = findGcc(getTriple()))
440 Base = std::string(llvm::sys::path::parent_path(
441 llvm::sys::path::parent_path(GPPName.get())));
442 else
443 Base = std::string(
444 llvm::sys::path::parent_path(getDriver().getInstalledDir()));
445
446 Base += llvm::sys::path::get_separator();
447 findGccLibDir();
448 // GccLibDir must precede Base/lib so that the
449 // correct crtbegin.o ,cetend.o would be found.
450 getFilePaths().push_back(GccLibDir);
451 getFilePaths().push_back(
452 (Base + SubdirName + llvm::sys::path::get_separator() + "lib").str());
453
454 // Gentoo
455 getFilePaths().push_back(
456 (Base + SubdirName + llvm::sys::path::get_separator() + "mingw/lib").str());
457
458 getFilePaths().push_back(Base + "lib");
459 // openSUSE
460 getFilePaths().push_back(Base + SubdirName + "/sys-root/mingw/lib");
461
462 NativeLLVMSupport =
463 Args.getLastArgValue(options::OPT_fuse_ld_EQ, CLANG_DEFAULT_LINKER)
464 .equals_insensitive("lld");
465 }
466
467 bool toolchains::MinGW::IsIntegratedAssemblerDefault() const { return true; }
468
469 Tool *toolchains::MinGW::getTool(Action::ActionClass AC) const {
470 switch (AC) {
471 case Action::PreprocessJobClass:
472 if (!Preprocessor)
473 Preprocessor.reset(new tools::gcc::Preprocessor(*this));
474 return Preprocessor.get();
475 case Action::CompileJobClass:
476 if (!Compiler)
477 Compiler.reset(new tools::gcc::Compiler(*this));
478 return Compiler.get();
479 default:
480 return ToolChain::getTool(AC);
481 }
482 }
483
484 Tool *toolchains::MinGW::buildAssembler() const {
485 return new tools::MinGW::Assembler(*this);
486 }
487
488 Tool *toolchains::MinGW::buildLinker() const {
489 return new tools::MinGW::Linker(*this);
490 }
491
492 bool toolchains::MinGW::HasNativeLLVMSupport() const {
493 return NativeLLVMSupport;
494 }
495
496 bool toolchains::MinGW::IsUnwindTablesDefault(const ArgList &Args) const {
497 Arg *ExceptionArg = Args.getLastArg(options::OPT_fsjlj_exceptions,
498 options::OPT_fseh_exceptions,
499 options::OPT_fdwarf_exceptions);
500 if (ExceptionArg &&
501 ExceptionArg->getOption().matches(options::OPT_fseh_exceptions))
502 return true;
503 return getArch() == llvm::Triple::x86_64 || getArch() == llvm::Triple::arm ||
504 getArch() == llvm::Triple::thumb || getArch() == llvm::Triple::aarch64;
505 }
506
507 bool toolchains::MinGW::isPICDefault() const {
508 return getArch() == llvm::Triple::x86_64 ||
509 getArch() == llvm::Triple::aarch64;
510 }
511
512 bool toolchains::MinGW::isPIEDefault(const llvm::opt::ArgList &Args) const {
513 return false;
514 }
515
516 bool toolchains::MinGW::isPICDefaultForced() const { return true; }
517
518 llvm::ExceptionHandling
519 toolchains::MinGW::GetExceptionModel(const ArgList &Args) const {
520 if (getArch() == llvm::Triple::x86_64 || getArch() == llvm::Triple::aarch64 ||
521 getArch() == llvm::Triple::arm || getArch() == llvm::Triple::thumb)
522 return llvm::ExceptionHandling::WinEH;
523 return llvm::ExceptionHandling::DwarfCFI;
524 }
525
526 SanitizerMask toolchains::MinGW::getSupportedSanitizers() const {
527 SanitizerMask Res = ToolChain::getSupportedSanitizers();
528 Res |= SanitizerKind::Address;
529 Res |= SanitizerKind::PointerCompare;
530 Res |= SanitizerKind::PointerSubtract;
531 Res |= SanitizerKind::Vptr;
532 return Res;
533 }
534
535 void toolchains::MinGW::AddCudaIncludeArgs(const ArgList &DriverArgs,
536 ArgStringList &CC1Args) const {
537 CudaInstallation.AddCudaIncludeArgs(DriverArgs, CC1Args);
538 }
539
540 void toolchains::MinGW::AddHIPIncludeArgs(const ArgList &DriverArgs,
541 ArgStringList &CC1Args) const {
542 RocmInstallation.AddHIPIncludeArgs(DriverArgs, CC1Args);
543 }
544
545 void toolchains::MinGW::printVerboseInfo(raw_ostream &OS) const {
546 CudaInstallation.print(OS);
547 RocmInstallation.print(OS);
548 }
549
550 // Include directories for various hosts:
551
552 // Windows, mingw.org
553 // c:\mingw\lib\gcc\mingw32\4.8.1\include\c++
554 // c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\mingw32
555 // c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\backward
556 // c:\mingw\include
557 // c:\mingw\mingw32\include
558
559 // Windows, mingw-w64 mingw-builds
560 // c:\mingw32\i686-w64-mingw32\include
561 // c:\mingw32\i686-w64-mingw32\include\c++
562 // c:\mingw32\i686-w64-mingw32\include\c++\i686-w64-mingw32
563 // c:\mingw32\i686-w64-mingw32\include\c++\backward
564
565 // Windows, mingw-w64 msys2
566 // c:\msys64\mingw32\include
567 // c:\msys64\mingw32\i686-w64-mingw32\include
568 // c:\msys64\mingw32\include\c++\4.9.2
569 // c:\msys64\mingw32\include\c++\4.9.2\i686-w64-mingw32
570 // c:\msys64\mingw32\include\c++\4.9.2\backward
571
572 // openSUSE
573 // /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/include/c++
574 // /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/include/c++/x86_64-w64-mingw32
575 // /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/include/c++/backward
576 // /usr/x86_64-w64-mingw32/sys-root/mingw/include
577
578 // Arch Linux
579 // /usr/i686-w64-mingw32/include/c++/5.1.0
580 // /usr/i686-w64-mingw32/include/c++/5.1.0/i686-w64-mingw32
581 // /usr/i686-w64-mingw32/include/c++/5.1.0/backward
582 // /usr/i686-w64-mingw32/include
583
584 // Ubuntu
585 // /usr/include/c++/4.8
586 // /usr/include/c++/4.8/x86_64-w64-mingw32
587 // /usr/include/c++/4.8/backward
588 // /usr/x86_64-w64-mingw32/include
589
590 void toolchains::MinGW::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
591 ArgStringList &CC1Args) const {
592 if (DriverArgs.hasArg(options::OPT_nostdinc))
593 return;
594
595 if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
596 SmallString<1024> P(getDriver().ResourceDir);
597 llvm::sys::path::append(P, "include");
598 addSystemInclude(DriverArgs, CC1Args, P.str());
599 }
600
601 if (DriverArgs.hasArg(options::OPT_nostdlibinc))
602 return;
603
604 if (GetRuntimeLibType(DriverArgs) == ToolChain::RLT_Libgcc) {
605 // openSUSE
606 addSystemInclude(DriverArgs, CC1Args,
607 Base + SubdirName + "/sys-root/mingw/include");
608 }
609
610 addSystemInclude(DriverArgs, CC1Args,
611 Base + SubdirName + llvm::sys::path::get_separator() +
612 "include");
613
614 // Gentoo
615 addSystemInclude(DriverArgs, CC1Args,
616 Base + SubdirName + llvm::sys::path::get_separator() + "usr/include");
617
618 addSystemInclude(DriverArgs, CC1Args, Base + "include");
619 }
620
621 void toolchains::MinGW::addClangTargetOptions(
622 const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args,
623 Action::OffloadKind DeviceOffloadKind) const {
624 if (Arg *A = DriverArgs.getLastArg(options::OPT_mguard_EQ)) {
625 StringRef GuardArgs = A->getValue();
626 if (GuardArgs == "none") {
627 // Do nothing.
628 } else if (GuardArgs == "cf") {
629 // Emit CFG instrumentation and the table of address-taken functions.
630 CC1Args.push_back("-cfguard");
631 } else if (GuardArgs == "cf-nochecks") {
632 // Emit only the table of address-taken functions.
633 CC1Args.push_back("-cfguard-no-checks");
634 } else {
635 getDriver().Diag(diag::err_drv_unsupported_option_argument)
636 << A->getSpelling() << GuardArgs;
637 }
638 }
639 }
640
641 void toolchains::MinGW::AddClangCXXStdlibIncludeArgs(
642 const ArgList &DriverArgs, ArgStringList &CC1Args) const {
643 if (DriverArgs.hasArg(options::OPT_nostdlibinc) ||
644 DriverArgs.hasArg(options::OPT_nostdincxx))
645 return;
646
647 StringRef Slash = llvm::sys::path::get_separator();
648
649 switch (GetCXXStdlibType(DriverArgs)) {
650 case ToolChain::CST_Libcxx: {
651 std::string TargetDir = (Base + "include" + Slash + getTripleString() +
652 Slash + "c++" + Slash + "v1")
653 .str();
654 if (getDriver().getVFS().exists(TargetDir))
655 addSystemInclude(DriverArgs, CC1Args, TargetDir);
656 addSystemInclude(DriverArgs, CC1Args,
657 Base + SubdirName + Slash + "include" + Slash + "c++" +
658 Slash + "v1");
659 addSystemInclude(DriverArgs, CC1Args,
660 Base + "include" + Slash + "c++" + Slash + "v1");
661 break;
662 }
663
664 case ToolChain::CST_Libstdcxx:
665 llvm::SmallVector<llvm::SmallString<1024>, 7> CppIncludeBases;
666 CppIncludeBases.emplace_back(Base);
667 llvm::sys::path::append(CppIncludeBases[0], SubdirName, "include", "c++");
668 CppIncludeBases.emplace_back(Base);
669 llvm::sys::path::append(CppIncludeBases[1], SubdirName, "include", "c++",
670 Ver);
671 CppIncludeBases.emplace_back(Base);
672 llvm::sys::path::append(CppIncludeBases[2], "include", "c++", Ver);
673 CppIncludeBases.emplace_back(GccLibDir);
674 llvm::sys::path::append(CppIncludeBases[3], "include", "c++");
675 CppIncludeBases.emplace_back(GccLibDir);
676 llvm::sys::path::append(CppIncludeBases[4], "include",
677 "g++-v" + GccVer.Text);
678 CppIncludeBases.emplace_back(GccLibDir);
679 llvm::sys::path::append(CppIncludeBases[5], "include",
680 "g++-v" + GccVer.MajorStr + "." + GccVer.MinorStr);
681 CppIncludeBases.emplace_back(GccLibDir);
682 llvm::sys::path::append(CppIncludeBases[6], "include",
683 "g++-v" + GccVer.MajorStr);
684 for (auto &CppIncludeBase : CppIncludeBases) {
685 addSystemInclude(DriverArgs, CC1Args, CppIncludeBase);
686 CppIncludeBase += Slash;
687 addSystemInclude(DriverArgs, CC1Args, CppIncludeBase + SubdirName);
688 addSystemInclude(DriverArgs, CC1Args, CppIncludeBase + "backward");
689 }
690 break;
691 }
692 }
693
694 static bool testTriple(const Driver &D, const llvm::Triple &Triple,
695 const ArgList &Args) {
696 // If an explicit sysroot is set, that will be used and we shouldn't try to
697 // detect anything else.
698 std::string SubdirName;
699 if (D.SysRoot.size())
700 return true;
701 if (llvm::ErrorOr<std::string> TargetSubdir =
702 findClangRelativeSysroot(D, Triple, SubdirName))
703 return true;
704 if (llvm::ErrorOr<std::string> GPPName = findGcc(Triple))
705 return true;
706 // If we neither found a colocated sysroot or a matching gcc executable,
707 // conclude that we can't know if this is the correct spelling of the triple.
708 return false;
709 }
710
711 static llvm::Triple adjustTriple(const Driver &D, const llvm::Triple &Triple,
712 const ArgList &Args) {
713 // First test if the original triple can find a sysroot with the triple
714 // name.
715 if (testTriple(D, Triple, Args))
716 return Triple;
717 llvm::SmallVector<llvm::StringRef, 3> Archs;
718 // If not, test a couple other possible arch names that might be what was
719 // intended.
720 if (Triple.getArch() == llvm::Triple::x86) {
721 Archs.emplace_back("i386");
722 Archs.emplace_back("i586");
723 Archs.emplace_back("i686");
724 } else if (Triple.getArch() == llvm::Triple::arm ||
725 Triple.getArch() == llvm::Triple::thumb) {
726 Archs.emplace_back("armv7");
727 }
728 for (auto A : Archs) {
729 llvm::Triple TestTriple(Triple);
730 TestTriple.setArchName(A);
731 if (testTriple(D, TestTriple, Args))
732 return TestTriple;
733 }
734 // If none was found, just proceed with the original value.
735 return Triple;
736 }
737
738 void toolchains::MinGW::fixTripleArch(const Driver &D, llvm::Triple &Triple,
739 const ArgList &Args) {
740 if (Triple.getArch() == llvm::Triple::x86 ||
741 Triple.getArch() == llvm::Triple::arm ||
742 Triple.getArch() == llvm::Triple::thumb)
743 Triple = adjustTriple(D, Triple, Args);
744 }
LLVM monorepo