clang 20.0.0git
MinGW.cpp
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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"
13#include "clang/Driver/Driver.h"
18#include "llvm/Config/llvm-config.h" // for LLVM_HOST_TRIPLE
19#include "llvm/Option/ArgList.h"
20#include "llvm/Support/FileSystem.h"
21#include "llvm/Support/Path.h"
22#include "llvm/Support/VirtualFileSystem.h"
23#include <system_error>
24
25using namespace clang::diag;
26using namespace clang::driver;
27using namespace clang;
28using namespace llvm::opt;
29
30/// MinGW Tools
32 const InputInfo &Output,
33 const InputInfoList &Inputs,
34 const ArgList &Args,
35 const char *LinkingOutput) const {
36 claimNoWarnArgs(Args);
37 ArgStringList CmdArgs;
38
39 if (getToolChain().getArch() == llvm::Triple::x86) {
40 CmdArgs.push_back("--32");
41 } else if (getToolChain().getArch() == llvm::Triple::x86_64) {
42 CmdArgs.push_back("--64");
43 }
44
45 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
46
47 CmdArgs.push_back("-o");
48 CmdArgs.push_back(Output.getFilename());
49
50 for (const auto &II : Inputs)
51 CmdArgs.push_back(II.getFilename());
52
53 const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as"));
54 C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(),
55 Exec, CmdArgs, Inputs, Output));
56
57 if (Args.hasArg(options::OPT_gsplit_dwarf))
58 SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output,
59 SplitDebugName(JA, Args, Inputs[0], Output));
60}
61
62void tools::MinGW::Linker::AddLibGCC(const ArgList &Args,
63 ArgStringList &CmdArgs) const {
64 if (Args.hasArg(options::OPT_mthreads))
65 CmdArgs.push_back("-lmingwthrd");
66 CmdArgs.push_back("-lmingw32");
67
68 // Make use of compiler-rt if --rtlib option is used
69 ToolChain::RuntimeLibType RLT = getToolChain().GetRuntimeLibType(Args);
70 if (RLT == ToolChain::RLT_Libgcc) {
71 bool Static = Args.hasArg(options::OPT_static_libgcc) ||
72 Args.hasArg(options::OPT_static);
73 bool Shared = Args.hasArg(options::OPT_shared);
74 bool CXX = getToolChain().getDriver().CCCIsCXX();
75
76 if (Static || (!CXX && !Shared)) {
77 CmdArgs.push_back("-lgcc");
78 CmdArgs.push_back("-lgcc_eh");
79 } else {
80 CmdArgs.push_back("-lgcc_s");
81 CmdArgs.push_back("-lgcc");
82 }
83 } else {
84 AddRunTimeLibs(getToolChain(), getToolChain().getDriver(), CmdArgs, Args);
85 }
86
87 CmdArgs.push_back("-lmoldname");
88 CmdArgs.push_back("-lmingwex");
89 for (auto Lib : Args.getAllArgValues(options::OPT_l))
90 if (StringRef(Lib).starts_with("msvcr") ||
91 StringRef(Lib).starts_with("ucrt") ||
92 StringRef(Lib).starts_with("crtdll"))
93 return;
94 CmdArgs.push_back("-lmsvcrt");
95}
96
98 const InputInfo &Output,
99 const InputInfoList &Inputs,
100 const ArgList &Args,
101 const char *LinkingOutput) const {
102 const ToolChain &TC = getToolChain();
103 const Driver &D = TC.getDriver();
104 const SanitizerArgs &Sanitize = TC.getSanitizerArgs(Args);
105
106 ArgStringList CmdArgs;
107
108 // Silence warning for "clang -g foo.o -o foo"
109 Args.ClaimAllArgs(options::OPT_g_Group);
110 // and "clang -emit-llvm foo.o -o foo"
111 Args.ClaimAllArgs(options::OPT_emit_llvm);
112 // and for "clang -w foo.o -o foo". Other warning options are already
113 // handled somewhere else.
114 Args.ClaimAllArgs(options::OPT_w);
115
116 if (!D.SysRoot.empty())
117 CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot));
118
119 if (Args.hasArg(options::OPT_s))
120 CmdArgs.push_back("-s");
121
122 CmdArgs.push_back("-m");
123 switch (TC.getArch()) {
124 case llvm::Triple::x86:
125 CmdArgs.push_back("i386pe");
126 break;
127 case llvm::Triple::x86_64:
128 CmdArgs.push_back("i386pep");
129 break;
130 case llvm::Triple::arm:
131 case llvm::Triple::thumb:
132 // FIXME: this is incorrect for WinCE
133 CmdArgs.push_back("thumb2pe");
134 break;
135 case llvm::Triple::aarch64:
136 if (TC.getEffectiveTriple().isWindowsArm64EC())
137 CmdArgs.push_back("arm64ecpe");
138 else
139 CmdArgs.push_back("arm64pe");
140 break;
141 case llvm::Triple::mipsel:
142 CmdArgs.push_back("mipspe");
143 break;
144 default:
145 D.Diag(diag::err_target_unknown_triple) << TC.getEffectiveTriple().str();
146 }
147
148 Arg *SubsysArg =
149 Args.getLastArg(options::OPT_mwindows, options::OPT_mconsole);
150 if (SubsysArg && SubsysArg->getOption().matches(options::OPT_mwindows)) {
151 CmdArgs.push_back("--subsystem");
152 CmdArgs.push_back("windows");
153 } else if (SubsysArg &&
154 SubsysArg->getOption().matches(options::OPT_mconsole)) {
155 CmdArgs.push_back("--subsystem");
156 CmdArgs.push_back("console");
157 }
158
159 if (Args.hasArg(options::OPT_mdll))
160 CmdArgs.push_back("--dll");
161 else if (Args.hasArg(options::OPT_shared))
162 CmdArgs.push_back("--shared");
163 if (Args.hasArg(options::OPT_static))
164 CmdArgs.push_back("-Bstatic");
165 else
166 CmdArgs.push_back("-Bdynamic");
167 if (Args.hasArg(options::OPT_mdll) || Args.hasArg(options::OPT_shared)) {
168 CmdArgs.push_back("-e");
169 if (TC.getArch() == llvm::Triple::x86)
170 CmdArgs.push_back("_DllMainCRTStartup@12");
171 else
172 CmdArgs.push_back("DllMainCRTStartup");
173 CmdArgs.push_back("--enable-auto-image-base");
174 }
175
176 if (Args.hasArg(options::OPT_Z_Xlinker__no_demangle))
177 CmdArgs.push_back("--no-demangle");
178
179 if (!Args.hasFlag(options::OPT_fauto_import, options::OPT_fno_auto_import,
180 true))
181 CmdArgs.push_back("--disable-auto-import");
182
183 if (Arg *A = Args.getLastArg(options::OPT_mguard_EQ)) {
184 StringRef GuardArgs = A->getValue();
185 if (GuardArgs == "none")
186 CmdArgs.push_back("--no-guard-cf");
187 else if (GuardArgs == "cf" || GuardArgs == "cf-nochecks")
188 CmdArgs.push_back("--guard-cf");
189 else
190 D.Diag(diag::err_drv_unsupported_option_argument)
191 << A->getSpelling() << GuardArgs;
192 }
193
194 if (Args.hasArg(options::OPT_fms_hotpatch))
195 CmdArgs.push_back("--functionpadmin");
196
197 CmdArgs.push_back("-o");
198 const char *OutputFile = Output.getFilename();
199 // GCC implicitly adds an .exe extension if it is given an output file name
200 // that lacks an extension.
201 // GCC used to do this only when the compiler itself runs on windows, but
202 // since GCC 8 it does the same when cross compiling as well.
203 if (!llvm::sys::path::has_extension(OutputFile)) {
204 CmdArgs.push_back(Args.MakeArgString(Twine(OutputFile) + ".exe"));
205 OutputFile = CmdArgs.back();
206 } else
207 CmdArgs.push_back(OutputFile);
208
209 // FIXME: add -N, -n flags
210 Args.AddLastArg(CmdArgs, options::OPT_r);
211 Args.AddLastArg(CmdArgs, options::OPT_s);
212 Args.AddLastArg(CmdArgs, options::OPT_t);
213 Args.AddAllArgs(CmdArgs, options::OPT_u_Group);
214
215 // Add asan_dynamic as the first import lib before other libs. This allows
216 // asan to be initialized as early as possible to increase its instrumentation
217 // coverage to include other user DLLs which has not been built with asan.
218 if (Sanitize.needsAsanRt() && !Args.hasArg(options::OPT_nostdlib) &&
219 !Args.hasArg(options::OPT_nodefaultlibs)) {
220 // MinGW always links against a shared MSVCRT.
221 CmdArgs.push_back(
222 TC.getCompilerRTArgString(Args, "asan_dynamic", ToolChain::FT_Shared));
223 }
224
225 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
226 if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_mdll)) {
227 CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("dllcrt2.o")));
228 } else {
229 if (Args.hasArg(options::OPT_municode))
230 CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crt2u.o")));
231 else
232 CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crt2.o")));
233 }
234 if (Args.hasArg(options::OPT_pg))
235 CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("gcrt2.o")));
236 CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crtbegin.o")));
237 }
238
239 Args.AddAllArgs(CmdArgs, options::OPT_L);
240 TC.AddFilePathLibArgs(Args, CmdArgs);
241
242 // Add the compiler-rt library directories if they exist to help
243 // the linker find the various sanitizer, builtin, and profiling runtimes.
244 for (const auto &LibPath : TC.getLibraryPaths()) {
245 if (TC.getVFS().exists(LibPath))
246 CmdArgs.push_back(Args.MakeArgString("-L" + LibPath));
247 }
248 auto CRTPath = TC.getCompilerRTPath();
249 if (TC.getVFS().exists(CRTPath))
250 CmdArgs.push_back(Args.MakeArgString("-L" + CRTPath));
251
252 AddLinkerInputs(TC, Inputs, Args, CmdArgs, JA);
253
254 if (D.isUsingLTO()) {
255 assert(!Inputs.empty() && "Must have at least one input.");
256 addLTOOptions(TC, Args, CmdArgs, Output, Inputs[0],
257 D.getLTOMode() == LTOK_Thin);
258 }
259
260 if (C.getDriver().IsFlangMode() &&
261 !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
262 addFortranRuntimeLibraryPath(TC, Args, CmdArgs);
263 addFortranRuntimeLibs(TC, Args, CmdArgs);
264 }
265
266 // TODO: Add profile stuff here
267
268 if (TC.ShouldLinkCXXStdlib(Args)) {
269 bool OnlyLibstdcxxStatic = Args.hasArg(options::OPT_static_libstdcxx) &&
270 !Args.hasArg(options::OPT_static);
271 if (OnlyLibstdcxxStatic)
272 CmdArgs.push_back("-Bstatic");
273 TC.AddCXXStdlibLibArgs(Args, CmdArgs);
274 if (OnlyLibstdcxxStatic)
275 CmdArgs.push_back("-Bdynamic");
276 }
277
278 bool HasWindowsApp = false;
279 for (auto Lib : Args.getAllArgValues(options::OPT_l)) {
280 if (Lib == "windowsapp") {
281 HasWindowsApp = true;
282 break;
283 }
284 }
285
286 if (!Args.hasArg(options::OPT_nostdlib)) {
287 if (!Args.hasArg(options::OPT_nodefaultlibs)) {
288 if (Args.hasArg(options::OPT_static))
289 CmdArgs.push_back("--start-group");
290
291 if (Args.hasArg(options::OPT_fstack_protector) ||
292 Args.hasArg(options::OPT_fstack_protector_strong) ||
293 Args.hasArg(options::OPT_fstack_protector_all)) {
294 CmdArgs.push_back("-lssp_nonshared");
295 CmdArgs.push_back("-lssp");
296 }
297
298 if (Args.hasFlag(options::OPT_fopenmp, options::OPT_fopenmp_EQ,
299 options::OPT_fno_openmp, false)) {
300 switch (TC.getDriver().getOpenMPRuntime(Args)) {
302 CmdArgs.push_back("-lomp");
303 break;
305 CmdArgs.push_back("-liomp5md");
306 break;
308 CmdArgs.push_back("-lgomp");
309 break;
311 // Already diagnosed.
312 break;
313 }
314 }
315
316 AddLibGCC(Args, CmdArgs);
317
318 if (Args.hasArg(options::OPT_pg))
319 CmdArgs.push_back("-lgmon");
320
321 if (Args.hasArg(options::OPT_pthread))
322 CmdArgs.push_back("-lpthread");
323
324 if (Sanitize.needsAsanRt()) {
325 // MinGW always links against a shared MSVCRT.
326 CmdArgs.push_back(TC.getCompilerRTArgString(Args, "asan_dynamic",
328 CmdArgs.push_back(
329 TC.getCompilerRTArgString(Args, "asan_dynamic_runtime_thunk"));
330 CmdArgs.push_back("--require-defined");
331 CmdArgs.push_back(TC.getArch() == llvm::Triple::x86
332 ? "___asan_seh_interceptor"
333 : "__asan_seh_interceptor");
334 // Make sure the linker consider all object files from the dynamic
335 // runtime thunk.
336 CmdArgs.push_back("--whole-archive");
337 CmdArgs.push_back(
338 TC.getCompilerRTArgString(Args, "asan_dynamic_runtime_thunk"));
339 CmdArgs.push_back("--no-whole-archive");
340 }
341
342 TC.addProfileRTLibs(Args, CmdArgs);
343
344 if (!HasWindowsApp) {
345 // Add system libraries. If linking to libwindowsapp.a, that import
346 // library replaces all these and we shouldn't accidentally try to
347 // link to the normal desktop mode dlls.
348 if (Args.hasArg(options::OPT_mwindows)) {
349 CmdArgs.push_back("-lgdi32");
350 CmdArgs.push_back("-lcomdlg32");
351 }
352 CmdArgs.push_back("-ladvapi32");
353 CmdArgs.push_back("-lshell32");
354 CmdArgs.push_back("-luser32");
355 CmdArgs.push_back("-lkernel32");
356 }
357
358 if (Args.hasArg(options::OPT_static)) {
359 CmdArgs.push_back("--end-group");
360 } else {
361 AddLibGCC(Args, CmdArgs);
362 if (!HasWindowsApp)
363 CmdArgs.push_back("-lkernel32");
364 }
365 }
366
367 if (!Args.hasArg(options::OPT_nostartfiles)) {
368 // Add crtfastmath.o if available and fast math is enabled.
369 TC.addFastMathRuntimeIfAvailable(Args, CmdArgs);
370
371 CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crtend.o")));
372 }
373 }
374 const char *Exec = Args.MakeArgString(TC.GetLinkerPath());
375 C.addCommand(std::make_unique<Command>(JA, *this,
377 Exec, CmdArgs, Inputs, Output));
378}
379
380static bool isCrossCompiling(const llvm::Triple &T, bool RequireArchMatch) {
381 llvm::Triple HostTriple(llvm::Triple::normalize(LLVM_HOST_TRIPLE));
382 if (HostTriple.getOS() != llvm::Triple::Win32)
383 return true;
384 if (RequireArchMatch && HostTriple.getArch() != T.getArch())
385 return true;
386 return false;
387}
388
389// Simplified from Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple.
390static bool findGccVersion(StringRef LibDir, std::string &GccLibDir,
391 std::string &Ver,
394 std::error_code EC;
395 for (llvm::sys::fs::directory_iterator LI(LibDir, EC), LE; !EC && LI != LE;
396 LI = LI.increment(EC)) {
397 StringRef VersionText = llvm::sys::path::filename(LI->path());
398 auto CandidateVersion =
400 if (CandidateVersion.Major == -1)
401 continue;
402 if (CandidateVersion <= Version)
403 continue;
404 Version = CandidateVersion;
405 Ver = std::string(VersionText);
406 GccLibDir = LI->path();
407 }
408 return Ver.size();
409}
410
411static llvm::Triple getLiteralTriple(const Driver &D, const llvm::Triple &T) {
412 llvm::Triple LiteralTriple(D.getTargetTriple());
413 // The arch portion of the triple may be overridden by -m32/-m64.
414 LiteralTriple.setArchName(T.getArchName());
415 return LiteralTriple;
416}
417
418void toolchains::MinGW::findGccLibDir(const llvm::Triple &LiteralTriple) {
420 SubdirNames.emplace_back(LiteralTriple.str());
421 SubdirNames.emplace_back(getTriple().str());
422 SubdirNames.emplace_back(getTriple().getArchName());
423 SubdirNames.back() += "-w64-mingw32";
424 SubdirNames.emplace_back(getTriple().getArchName());
425 SubdirNames.back() += "-w64-mingw32ucrt";
426 SubdirNames.emplace_back("mingw32");
427 if (SubdirName.empty()) {
428 SubdirName = getTriple().getArchName();
429 SubdirName += "-w64-mingw32";
430 }
431 // lib: Arch Linux, Ubuntu, Windows
432 // lib64: openSUSE Linux
433 for (StringRef CandidateLib : {"lib", "lib64"}) {
434 for (StringRef CandidateSysroot : SubdirNames) {
436 llvm::sys::path::append(LibDir, CandidateLib, "gcc", CandidateSysroot);
437 if (findGccVersion(LibDir, GccLibDir, Ver, GccVer)) {
438 SubdirName = std::string(CandidateSysroot);
439 return;
440 }
441 }
442 }
443}
444
445static llvm::ErrorOr<std::string> findGcc(const llvm::Triple &LiteralTriple,
446 const llvm::Triple &T) {
448 Gccs.emplace_back(LiteralTriple.str());
449 Gccs.back() += "-gcc";
450 Gccs.emplace_back(T.str());
451 Gccs.back() += "-gcc";
452 Gccs.emplace_back(T.getArchName());
453 Gccs.back() += "-w64-mingw32-gcc";
454 Gccs.emplace_back(T.getArchName());
455 Gccs.back() += "-w64-mingw32ucrt-gcc";
456 Gccs.emplace_back("mingw32-gcc");
457 // Please do not add "gcc" here
458 for (StringRef CandidateGcc : Gccs)
459 if (llvm::ErrorOr<std::string> GPPName = llvm::sys::findProgramByName(CandidateGcc))
460 return GPPName;
461 return make_error_code(std::errc::no_such_file_or_directory);
462}
463
464static llvm::ErrorOr<std::string>
465findClangRelativeSysroot(const Driver &D, const llvm::Triple &LiteralTriple,
466 const llvm::Triple &T, std::string &SubdirName) {
468 Subdirs.emplace_back(LiteralTriple.str());
469 Subdirs.emplace_back(T.str());
470 Subdirs.emplace_back(T.getArchName());
471 Subdirs.back() += "-w64-mingw32";
472 Subdirs.emplace_back(T.getArchName());
473 Subdirs.back() += "-w64-mingw32ucrt";
474 StringRef ClangRoot = llvm::sys::path::parent_path(D.Dir);
475 StringRef Sep = llvm::sys::path::get_separator();
476 for (StringRef CandidateSubdir : Subdirs) {
477 if (llvm::sys::fs::is_directory(ClangRoot + Sep + CandidateSubdir)) {
478 SubdirName = std::string(CandidateSubdir);
479 return (ClangRoot + Sep + CandidateSubdir).str();
480 }
481 }
482 return make_error_code(std::errc::no_such_file_or_directory);
483}
484
485static bool looksLikeMinGWSysroot(const std::string &Directory) {
486 StringRef Sep = llvm::sys::path::get_separator();
487 if (!llvm::sys::fs::exists(Directory + Sep + "include" + Sep + "_mingw.h"))
488 return false;
489 if (!llvm::sys::fs::exists(Directory + Sep + "lib" + Sep + "libkernel32.a"))
490 return false;
491 return true;
492}
493
494toolchains::MinGW::MinGW(const Driver &D, const llvm::Triple &Triple,
495 const ArgList &Args)
496 : ToolChain(D, Triple, Args), CudaInstallation(D, Triple, Args),
497 RocmInstallation(D, Triple, Args) {
498 getProgramPaths().push_back(getDriver().Dir);
499
500 std::string InstallBase =
501 std::string(llvm::sys::path::parent_path(getDriver().Dir));
502 // The sequence for detecting a sysroot here should be kept in sync with
503 // the testTriple function below.
504 llvm::Triple LiteralTriple = getLiteralTriple(D, getTriple());
505 if (getDriver().SysRoot.size())
507 // Look for <clang-bin>/../<triplet>; if found, use <clang-bin>/.. as the
508 // base as it could still be a base for a gcc setup with libgcc.
509 else if (llvm::ErrorOr<std::string> TargetSubdir = findClangRelativeSysroot(
510 getDriver(), LiteralTriple, getTriple(), SubdirName))
511 Base = std::string(llvm::sys::path::parent_path(TargetSubdir.get()));
512 // If the install base of Clang seems to have mingw sysroot files directly
513 // in the toplevel include and lib directories, use this as base instead of
514 // looking for a triple prefixed GCC in the path.
515 else if (looksLikeMinGWSysroot(InstallBase))
516 Base = InstallBase;
517 else if (llvm::ErrorOr<std::string> GPPName =
518 findGcc(LiteralTriple, getTriple()))
519 Base = std::string(llvm::sys::path::parent_path(
520 llvm::sys::path::parent_path(GPPName.get())));
521 else
522 Base = InstallBase;
523
524 Base += llvm::sys::path::get_separator();
525 findGccLibDir(LiteralTriple);
526 TripleDirName = SubdirName;
527 // GccLibDir must precede Base/lib so that the
528 // correct crtbegin.o ,cetend.o would be found.
529 getFilePaths().push_back(GccLibDir);
530
531 // openSUSE/Fedora
532 std::string CandidateSubdir = SubdirName + "/sys-root/mingw";
533 if (getDriver().getVFS().exists(Base + CandidateSubdir))
534 SubdirName = CandidateSubdir;
535
536 getFilePaths().push_back(
537 (Base + SubdirName + llvm::sys::path::get_separator() + "lib").str());
538
539 // Gentoo
540 getFilePaths().push_back(
541 (Base + SubdirName + llvm::sys::path::get_separator() + "mingw/lib").str());
542
543 // Only include <base>/lib if we're not cross compiling (not even for
544 // windows->windows to a different arch), or if the sysroot has been set
545 // (where we presume the user has pointed it at an arch specific
546 // subdirectory).
547 if (!::isCrossCompiling(getTriple(), /*RequireArchMatch=*/true) ||
548 getDriver().SysRoot.size())
549 getFilePaths().push_back(Base + "lib");
550
551 NativeLLVMSupport =
552 Args.getLastArgValue(options::OPT_fuse_ld_EQ, CLANG_DEFAULT_LINKER)
553 .equals_insensitive("lld");
554}
555
557 switch (AC) {
559 if (!Preprocessor)
560 Preprocessor.reset(new tools::gcc::Preprocessor(*this));
561 return Preprocessor.get();
563 if (!Compiler)
564 Compiler.reset(new tools::gcc::Compiler(*this));
565 return Compiler.get();
566 default:
567 return ToolChain::getTool(AC);
568 }
569}
570
572 return new tools::MinGW::Assembler(*this);
573}
574
576 return new tools::MinGW::Linker(*this);
577}
578
580 return NativeLLVMSupport;
581}
582
585 Arg *ExceptionArg = Args.getLastArg(options::OPT_fsjlj_exceptions,
586 options::OPT_fseh_exceptions,
587 options::OPT_fdwarf_exceptions);
588 if (ExceptionArg &&
589 ExceptionArg->getOption().matches(options::OPT_fseh_exceptions))
590 return UnwindTableLevel::Asynchronous;
591
592 if (getArch() == llvm::Triple::x86_64 || getArch() == llvm::Triple::arm ||
593 getArch() == llvm::Triple::thumb || getArch() == llvm::Triple::aarch64)
594 return UnwindTableLevel::Asynchronous;
595 return UnwindTableLevel::None;
596}
597
599 return getArch() == llvm::Triple::x86_64 ||
600 getArch() == llvm::Triple::aarch64;
601}
602
603bool toolchains::MinGW::isPIEDefault(const llvm::opt::ArgList &Args) const {
604 return false;
605}
606
607bool toolchains::MinGW::isPICDefaultForced() const { return true; }
608
609llvm::ExceptionHandling
610toolchains::MinGW::GetExceptionModel(const ArgList &Args) const {
611 if (getArch() == llvm::Triple::x86_64 || getArch() == llvm::Triple::aarch64 ||
612 getArch() == llvm::Triple::arm || getArch() == llvm::Triple::thumb)
613 return llvm::ExceptionHandling::WinEH;
614 return llvm::ExceptionHandling::DwarfCFI;
615}
616
619 Res |= SanitizerKind::Address;
620 Res |= SanitizerKind::PointerCompare;
621 Res |= SanitizerKind::PointerSubtract;
622 Res |= SanitizerKind::Vptr;
623 return Res;
624}
625
626void toolchains::MinGW::AddCudaIncludeArgs(const ArgList &DriverArgs,
627 ArgStringList &CC1Args) const {
628 CudaInstallation->AddCudaIncludeArgs(DriverArgs, CC1Args);
629}
630
631void toolchains::MinGW::AddHIPIncludeArgs(const ArgList &DriverArgs,
632 ArgStringList &CC1Args) const {
633 RocmInstallation->AddHIPIncludeArgs(DriverArgs, CC1Args);
634}
635
636void toolchains::MinGW::printVerboseInfo(raw_ostream &OS) const {
637 CudaInstallation->print(OS);
638 RocmInstallation->print(OS);
639}
640
641// Include directories for various hosts:
642
643// Windows, mingw.org
644// c:\mingw\lib\gcc\mingw32\4.8.1\include\c++
645// c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\mingw32
646// c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\backward
647// c:\mingw\include
648// c:\mingw\mingw32\include
649
650// Windows, mingw-w64 mingw-builds
651// c:\mingw32\i686-w64-mingw32\include
652// c:\mingw32\i686-w64-mingw32\include\c++
653// c:\mingw32\i686-w64-mingw32\include\c++\i686-w64-mingw32
654// c:\mingw32\i686-w64-mingw32\include\c++\backward
655
656// Windows, mingw-w64 msys2
657// c:\msys64\mingw32\include
658// c:\msys64\mingw32\i686-w64-mingw32\include
659// c:\msys64\mingw32\include\c++\4.9.2
660// c:\msys64\mingw32\include\c++\4.9.2\i686-w64-mingw32
661// c:\msys64\mingw32\include\c++\4.9.2\backward
662
663// openSUSE
664// /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/include/c++
665// /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/include/c++/x86_64-w64-mingw32
666// /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/include/c++/backward
667// /usr/x86_64-w64-mingw32/sys-root/mingw/include
668
669// Arch Linux
670// /usr/i686-w64-mingw32/include/c++/5.1.0
671// /usr/i686-w64-mingw32/include/c++/5.1.0/i686-w64-mingw32
672// /usr/i686-w64-mingw32/include/c++/5.1.0/backward
673// /usr/i686-w64-mingw32/include
674
675// Ubuntu
676// /usr/include/c++/4.8
677// /usr/include/c++/4.8/x86_64-w64-mingw32
678// /usr/include/c++/4.8/backward
679// /usr/x86_64-w64-mingw32/include
680
681// Fedora
682// /usr/x86_64-w64-mingw32ucrt/sys-root/mingw/include/c++/x86_64-w64-mingw32ucrt
683// /usr/x86_64-w64-mingw32ucrt/sys-root/mingw/include/c++/backward
684// /usr/x86_64-w64-mingw32ucrt/sys-root/mingw/include
685// /usr/lib/gcc/x86_64-w64-mingw32ucrt/12.2.1/include-fixed
686
687void toolchains::MinGW::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
688 ArgStringList &CC1Args) const {
689 if (DriverArgs.hasArg(options::OPT_nostdinc))
690 return;
691
692 if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
693 SmallString<1024> P(getDriver().ResourceDir);
694 llvm::sys::path::append(P, "include");
695 addSystemInclude(DriverArgs, CC1Args, P.str());
696 }
697
698 if (DriverArgs.hasArg(options::OPT_nostdlibinc))
699 return;
700
701 addSystemInclude(DriverArgs, CC1Args,
702 Base + SubdirName + llvm::sys::path::get_separator() +
703 "include");
704
705 // Gentoo
706 addSystemInclude(DriverArgs, CC1Args,
707 Base + SubdirName + llvm::sys::path::get_separator() + "usr/include");
708
709 // Only include <base>/include if we're not cross compiling (but do allow it
710 // if we're on Windows and building for Windows on another architecture),
711 // or if the sysroot has been set (where we presume the user has pointed it
712 // at an arch specific subdirectory).
713 if (!::isCrossCompiling(getTriple(), /*RequireArchMatch=*/false) ||
714 getDriver().SysRoot.size())
715 addSystemInclude(DriverArgs, CC1Args, Base + "include");
716}
717
719 const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args,
720 Action::OffloadKind DeviceOffloadKind) const {
721 if (Arg *A = DriverArgs.getLastArg(options::OPT_mguard_EQ)) {
722 StringRef GuardArgs = A->getValue();
723 if (GuardArgs == "none") {
724 // Do nothing.
725 } else if (GuardArgs == "cf") {
726 // Emit CFG instrumentation and the table of address-taken functions.
727 CC1Args.push_back("-cfguard");
728 } else if (GuardArgs == "cf-nochecks") {
729 // Emit only the table of address-taken functions.
730 CC1Args.push_back("-cfguard-no-checks");
731 } else {
732 getDriver().Diag(diag::err_drv_unsupported_option_argument)
733 << A->getSpelling() << GuardArgs;
734 }
735 }
736
737 // Default to not enabling sized deallocation, but let user provided options
738 // override it.
739 //
740 // If using sized deallocation, user code that invokes delete will end up
741 // calling delete(void*,size_t). If the user wanted to override the
742 // operator delete(void*), there may be a fallback operator
743 // delete(void*,size_t) which calls the regular operator delete(void*).
744 //
745 // However, if the C++ standard library is linked in the form of a DLL,
746 // and the fallback operator delete(void*,size_t) is within this DLL (which is
747 // the case for libc++ at least) it will only redirect towards the library's
748 // default operator delete(void*), not towards the user's provided operator
749 // delete(void*).
750 //
751 // This issue can be avoided, if the fallback operators are linked statically
752 // into the callers, even if the C++ standard library is linked as a DLL.
753 //
754 // This is meant as a temporary workaround until libc++ implements this
755 // technique, which is tracked in
756 // https://github.com/llvm/llvm-project/issues/96899.
757 if (!DriverArgs.hasArgNoClaim(options::OPT_fsized_deallocation,
758 options::OPT_fno_sized_deallocation))
759 CC1Args.push_back("-fno-sized-deallocation");
760
761 CC1Args.push_back("-fno-use-init-array");
762
763 for (auto Opt : {options::OPT_mthreads, options::OPT_mwindows,
764 options::OPT_mconsole, options::OPT_mdll}) {
765 if (Arg *A = DriverArgs.getLastArgNoClaim(Opt))
766 A->ignoreTargetSpecific();
767 }
768}
769
771 const ArgList &DriverArgs, ArgStringList &CC1Args) const {
772 if (DriverArgs.hasArg(options::OPT_nostdinc, options::OPT_nostdlibinc,
773 options::OPT_nostdincxx))
774 return;
775
776 StringRef Slash = llvm::sys::path::get_separator();
777
778 switch (GetCXXStdlibType(DriverArgs)) {
780 std::string TargetDir = (Base + "include" + Slash + getTripleString() +
781 Slash + "c++" + Slash + "v1")
782 .str();
783 if (getDriver().getVFS().exists(TargetDir))
784 addSystemInclude(DriverArgs, CC1Args, TargetDir);
785 addSystemInclude(DriverArgs, CC1Args,
786 Base + SubdirName + Slash + "include" + Slash + "c++" +
787 Slash + "v1");
788 addSystemInclude(DriverArgs, CC1Args,
789 Base + "include" + Slash + "c++" + Slash + "v1");
790 break;
791 }
792
795 CppIncludeBases.emplace_back(Base);
796 llvm::sys::path::append(CppIncludeBases[0], SubdirName, "include", "c++");
797 CppIncludeBases.emplace_back(Base);
798 llvm::sys::path::append(CppIncludeBases[1], SubdirName, "include", "c++",
799 Ver);
800 CppIncludeBases.emplace_back(Base);
801 llvm::sys::path::append(CppIncludeBases[2], "include", "c++", Ver);
802 CppIncludeBases.emplace_back(GccLibDir);
803 llvm::sys::path::append(CppIncludeBases[3], "include", "c++");
804 CppIncludeBases.emplace_back(GccLibDir);
805 llvm::sys::path::append(CppIncludeBases[4], "include",
806 "g++-v" + GccVer.Text);
807 CppIncludeBases.emplace_back(GccLibDir);
808 llvm::sys::path::append(CppIncludeBases[5], "include",
809 "g++-v" + GccVer.MajorStr + "." + GccVer.MinorStr);
810 CppIncludeBases.emplace_back(GccLibDir);
811 llvm::sys::path::append(CppIncludeBases[6], "include",
812 "g++-v" + GccVer.MajorStr);
813 for (auto &CppIncludeBase : CppIncludeBases) {
814 addSystemInclude(DriverArgs, CC1Args, CppIncludeBase);
815 CppIncludeBase += Slash;
816 addSystemInclude(DriverArgs, CC1Args, CppIncludeBase + TripleDirName);
817 addSystemInclude(DriverArgs, CC1Args, CppIncludeBase + "backward");
818 }
819 break;
820 }
821}
822
823static bool testTriple(const Driver &D, const llvm::Triple &Triple,
824 const ArgList &Args) {
825 // If an explicit sysroot is set, that will be used and we shouldn't try to
826 // detect anything else.
827 std::string SubdirName;
828 if (D.SysRoot.size())
829 return true;
830 llvm::Triple LiteralTriple = getLiteralTriple(D, Triple);
831 std::string InstallBase = std::string(llvm::sys::path::parent_path(D.Dir));
832 if (llvm::ErrorOr<std::string> TargetSubdir =
833 findClangRelativeSysroot(D, LiteralTriple, Triple, SubdirName))
834 return true;
835 // If the install base itself looks like a mingw sysroot, we'll use that
836 // - don't use any potentially unrelated gcc to influence what triple to use.
837 if (looksLikeMinGWSysroot(InstallBase))
838 return false;
839 if (llvm::ErrorOr<std::string> GPPName = findGcc(LiteralTriple, Triple))
840 return true;
841 // If we neither found a colocated sysroot or a matching gcc executable,
842 // conclude that we can't know if this is the correct spelling of the triple.
843 return false;
844}
845
846static llvm::Triple adjustTriple(const Driver &D, const llvm::Triple &Triple,
847 const ArgList &Args) {
848 // First test if the original triple can find a sysroot with the triple
849 // name.
850 if (testTriple(D, Triple, Args))
851 return Triple;
853 // If not, test a couple other possible arch names that might be what was
854 // intended.
855 if (Triple.getArch() == llvm::Triple::x86) {
856 Archs.emplace_back("i386");
857 Archs.emplace_back("i586");
858 Archs.emplace_back("i686");
859 } else if (Triple.getArch() == llvm::Triple::arm ||
860 Triple.getArch() == llvm::Triple::thumb) {
861 Archs.emplace_back("armv7");
862 }
863 for (auto A : Archs) {
864 llvm::Triple TestTriple(Triple);
865 TestTriple.setArchName(A);
866 if (testTriple(D, TestTriple, Args))
867 return TestTriple;
868 }
869 // If none was found, just proceed with the original value.
870 return Triple;
871}
872
873void toolchains::MinGW::fixTripleArch(const Driver &D, llvm::Triple &Triple,
874 const ArgList &Args) {
875 if (Triple.getArch() == llvm::Triple::x86 ||
876 Triple.getArch() == llvm::Triple::arm ||
877 Triple.getArch() == llvm::Triple::thumb)
878 Triple = adjustTriple(D, Triple, Args);
879}
StringRef P
const Decl * D
static llvm::Triple getLiteralTriple(const Driver &D, const llvm::Triple &T)
Definition: MinGW.cpp:411
static bool looksLikeMinGWSysroot(const std::string &Directory)
Definition: MinGW.cpp:485
static bool findGccVersion(StringRef LibDir, std::string &GccLibDir, std::string &Ver, toolchains::Generic_GCC::GCCVersion &Version)
Definition: MinGW.cpp:390
static bool testTriple(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
Definition: MinGW.cpp:823
static llvm::Triple adjustTriple(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
Definition: MinGW.cpp:846
static llvm::ErrorOr< std::string > findGcc(const llvm::Triple &LiteralTriple, const llvm::Triple &T)
Definition: MinGW.cpp:445
static llvm::ErrorOr< std::string > findClangRelativeSysroot(const Driver &D, const llvm::Triple &LiteralTriple, const llvm::Triple &T, std::string &SubdirName)
Definition: MinGW.cpp:465
static bool isCrossCompiling(const llvm::Triple &T, bool RequireArchMatch)
Definition: MinGW.cpp:380
Engages in a tight little dance with the lexer to efficiently preprocess tokens.
Definition: Preprocessor.h:138
Compilation - A set of tasks to perform for a single driver invocation.
Definition: Compilation.h:45
Driver - Encapsulate logic for constructing compilation processes from a set of gcc-driver-like comma...
Definition: Driver.h:77
std::string SysRoot
sysroot, if present
Definition: Driver.h:180
OpenMPRuntimeKind getOpenMPRuntime(const llvm::opt::ArgList &Args) const
Compute the desired OpenMP runtime from the flags provided.
Definition: Driver.cpp:760
@ OMPRT_IOMP5
The legacy name for the LLVM OpenMP runtime from when it was the Intel OpenMP runtime.
Definition: Driver.h:140
@ OMPRT_OMP
The LLVM OpenMP runtime.
Definition: Driver.h:130
@ OMPRT_Unknown
An unknown OpenMP runtime.
Definition: Driver.h:126
@ OMPRT_GOMP
The GNU OpenMP runtime.
Definition: Driver.h:135
InputInfo - Wrapper for information about an input source.
Definition: InputInfo.h:22
const char * getFilename() const
Definition: InputInfo.h:83
ToolChain - Access to tools for a single platform.
Definition: ToolChain.h:92
const char * getCompilerRTArgString(const llvm::opt::ArgList &Args, StringRef Component, FileType Type=ToolChain::FT_Static) const
Definition: ToolChain.cpp:785
bool ShouldLinkCXXStdlib(const llvm::opt::ArgList &Args) const
Returns if the C++ standard library should be linked in.
Definition: ToolChain.cpp:1367
std::string GetFilePath(const char *Name) const
Definition: ToolChain.cpp:949
path_list & getFilePaths()
Definition: ToolChain.h:294
llvm::Triple::ArchType getArch() const
Definition: ToolChain.h:268
const Driver & getDriver() const
Definition: ToolChain.h:252
llvm::vfs::FileSystem & getVFS() const
Definition: ToolChain.cpp:153
bool addFastMathRuntimeIfAvailable(const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs) const
AddFastMathRuntimeIfAvailable - If a runtime library exists that sets global flags for unsafe floatin...
Definition: ToolChain.cpp:1440
path_list & getProgramPaths()
Definition: ToolChain.h:297
const llvm::Triple & getEffectiveTriple() const
Get the toolchain's effective clang triple.
Definition: ToolChain.h:282
virtual void AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs) const
AddCXXStdlibLibArgs - Add the system specific linker arguments to use for the given C++ standard libr...
Definition: ToolChain.cpp:1373
const llvm::Triple & getTriple() const
Definition: ToolChain.h:254
virtual void addProfileRTLibs(const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs) const
addProfileRTLibs - When -fprofile-instr-profile is specified, try to pass a suitable profile runtime ...
Definition: ToolChain.cpp:1169
virtual std::string getCompilerRTPath() const
Definition: ToolChain.cpp:698
std::string GetLinkerPath(bool *LinkerIsLLD=nullptr) const
Returns the linker path, respecting the -fuse-ld= argument to determine the linker suffix or name.
Definition: ToolChain.cpp:957
void AddFilePathLibArgs(const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs) const
AddFilePathLibArgs - Add each thing in getFilePaths() as a "-L" option.
Definition: ToolChain.cpp:1392
SanitizerArgs getSanitizerArgs(const llvm::opt::ArgList &JobArgs) const
Definition: ToolChain.cpp:378
path_list & getLibraryPaths()
Definition: ToolChain.h:291
virtual Tool * getTool(Action::ActionClass AC) const
Definition: ToolChain.cpp:609
virtual SanitizerMask getSupportedSanitizers() const
Return sanitizers which are available in this toolchain.
Definition: ToolChain.cpp:1456
virtual bool isCrossCompiling() const
Returns true if the toolchain is targeting a non-native architecture.
Definition: ToolChain.cpp:1052
Tool - Information on a specific compilation tool.
Definition: Tool.h:32
const ToolChain & getToolChain() const
Definition: Tool.h:52
Tool * getTool(Action::ActionClass AC) const override
Definition: MinGW.cpp:556
llvm::ExceptionHandling GetExceptionModel(const llvm::opt::ArgList &Args) const override
GetExceptionModel - Return the tool chain exception model.
Definition: MinGW.cpp:610
void addClangTargetOptions(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, Action::OffloadKind DeviceOffloadKind) const override
Add options that need to be passed to cc1 for this target.
Definition: MinGW.cpp:718
SanitizerMask getSupportedSanitizers() const override
Return sanitizers which are available in this toolchain.
Definition: MinGW.cpp:617
Tool * buildAssembler() const override
Definition: MinGW.cpp:571
void printVerboseInfo(raw_ostream &OS) const override
Dispatch to the specific toolchain for verbose printing.
Definition: MinGW.cpp:636
Tool * buildLinker() const override
Definition: MinGW.cpp:575
void AddHIPIncludeArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const override
Add arguments to use system-specific HIP includes.
Definition: MinGW.cpp:631
bool isPIEDefault(const llvm::opt::ArgList &Args) const override
Test whether this toolchain defaults to PIE.
Definition: MinGW.cpp:603
void AddCudaIncludeArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const override
Add arguments to use system-specific CUDA includes.
Definition: MinGW.cpp:626
bool HasNativeLLVMSupport() const override
HasNativeLTOLinker - Check whether the linker and related tools have native LLVM support.
Definition: MinGW.cpp:579
bool isPICDefault() const override
Test whether this toolchain defaults to PIC.
Definition: MinGW.cpp:598
bool isPICDefaultForced() const override
Tests whether this toolchain forces its default for PIC, PIE or non-PIC.
Definition: MinGW.cpp:607
void AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const override
Add the clang cc1 arguments for system include paths.
Definition: MinGW.cpp:687
void AddClangCXXStdlibIncludeArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const override
AddClangCXXStdlibIncludeArgs - Add the clang -cc1 level arguments to set the include paths to use for...
Definition: MinGW.cpp:770
UnwindTableLevel getDefaultUnwindTableLevel(const llvm::opt::ArgList &Args) const override
How detailed should the unwind tables be by default.
Definition: MinGW.cpp:584
MinGW(const Driver &D, const llvm::Triple &Triple, const llvm::opt::ArgList &Args)
Definition: MinGW.cpp:494
static void fixTripleArch(const Driver &D, llvm::Triple &Triple, const llvm::opt::ArgList &Args)
Definition: MinGW.cpp:873
void ConstructJob(Compilation &C, const JobAction &JA, const InputInfo &Output, const InputInfoList &Inputs, const llvm::opt::ArgList &TCArgs, const char *LinkingOutput) const override
MinGW Tools.
Definition: MinGW.cpp:31
void ConstructJob(Compilation &C, const JobAction &JA, const InputInfo &Output, const InputInfoList &Inputs, const llvm::opt::ArgList &TCArgs, const char *LinkingOutput) const override
ConstructJob - Construct jobs to perform the action JA, writing to Output and with Inputs,...
Definition: MinGW.cpp:97
const char * SplitDebugName(const JobAction &JA, const llvm::opt::ArgList &Args, const InputInfo &Input, const InputInfo &Output)
void AddRunTimeLibs(const ToolChain &TC, const Driver &D, llvm::opt::ArgStringList &CmdArgs, const llvm::opt::ArgList &Args)
void SplitDebugInfo(const ToolChain &TC, Compilation &C, const Tool &T, const JobAction &JA, const llvm::opt::ArgList &Args, const InputInfo &Output, const char *OutFile)
void addFortranRuntimeLibraryPath(const ToolChain &TC, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs)
Adds the path for the Fortran runtime libraries to CmdArgs.
void addLTOOptions(const ToolChain &ToolChain, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs, const InputInfo &Output, const InputInfo &Input, bool IsThinLTO)
void claimNoWarnArgs(const llvm::opt::ArgList &Args)
void AddLinkerInputs(const ToolChain &TC, const InputInfoList &Inputs, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs, const JobAction &JA)
void addFortranRuntimeLibs(const ToolChain &TC, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs)
Adds Fortran runtime libraries to CmdArgs.
The JSON file list parser is used to communicate input to InstallAPI.
std::error_code make_error_code(BuildPreambleError Error)
const FunctionProtoType * T
static constexpr ResponseFileSupport None()
Returns a ResponseFileSupport indicating that response files are not supported.
Definition: Job.h:78
static constexpr ResponseFileSupport AtFileUTF8()
Definition: Job.h:85
Struct to store and manipulate GCC versions.
Definition: Gnu.h:163
static GCCVersion Parse(StringRef VersionText)
Parse a GCCVersion object out of a string of text.
Definition: Gnu.cpp:2126