File: | build/llvm-toolchain-snapshot-15~++20220420111733+e13d2efed663/clang/lib/Driver/ToolChains/MinGW.cpp |
Warning: | line 180, column 5 Value stored to 'OutputFile' is never read |
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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" |
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.")::llvm::llvm_unreachable_internal("Unsupported target architecture." , "clang/lib/Driver/ToolChains/MinGW.cpp", 138); |
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 | CmdArgs.push_back("-o"); |
173 | const char *OutputFile = Output.getFilename(); |
174 | // GCC implicitly adds an .exe extension if it is given an output file name |
175 | // that lacks an extension. |
176 | // GCC used to do this only when the compiler itself runs on windows, but |
177 | // since GCC 8 it does the same when cross compiling as well. |
178 | if (!llvm::sys::path::has_extension(OutputFile)) { |
179 | CmdArgs.push_back(Args.MakeArgString(Twine(OutputFile) + ".exe")); |
180 | OutputFile = CmdArgs.back(); |
Value stored to 'OutputFile' is never read | |
181 | } else |
182 | CmdArgs.push_back(OutputFile); |
183 | |
184 | Args.AddAllArgs(CmdArgs, options::OPT_e); |
185 | // FIXME: add -N, -n flags |
186 | Args.AddLastArg(CmdArgs, options::OPT_r); |
187 | Args.AddLastArg(CmdArgs, options::OPT_s); |
188 | Args.AddLastArg(CmdArgs, options::OPT_t); |
189 | Args.AddAllArgs(CmdArgs, options::OPT_u_Group); |
190 | Args.AddLastArg(CmdArgs, options::OPT_Z_Flag); |
191 | |
192 | if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) { |
193 | if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_mdll)) { |
194 | CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("dllcrt2.o"))); |
195 | } else { |
196 | if (Args.hasArg(options::OPT_municode)) |
197 | CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crt2u.o"))); |
198 | else |
199 | CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crt2.o"))); |
200 | } |
201 | if (Args.hasArg(options::OPT_pg)) |
202 | CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("gcrt2.o"))); |
203 | CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crtbegin.o"))); |
204 | } |
205 | |
206 | Args.AddAllArgs(CmdArgs, options::OPT_L); |
207 | TC.AddFilePathLibArgs(Args, CmdArgs); |
208 | |
209 | // Add the compiler-rt library directories if they exist to help |
210 | // the linker find the various sanitizer, builtin, and profiling runtimes. |
211 | for (const auto &LibPath : TC.getLibraryPaths()) { |
212 | if (TC.getVFS().exists(LibPath)) |
213 | CmdArgs.push_back(Args.MakeArgString("-L" + LibPath)); |
214 | } |
215 | auto CRTPath = TC.getCompilerRTPath(); |
216 | if (TC.getVFS().exists(CRTPath)) |
217 | CmdArgs.push_back(Args.MakeArgString("-L" + CRTPath)); |
218 | |
219 | AddLinkerInputs(TC, Inputs, Args, CmdArgs, JA); |
220 | |
221 | // TODO: Add profile stuff here |
222 | |
223 | if (TC.ShouldLinkCXXStdlib(Args)) { |
224 | bool OnlyLibstdcxxStatic = Args.hasArg(options::OPT_static_libstdcxx) && |
225 | !Args.hasArg(options::OPT_static); |
226 | if (OnlyLibstdcxxStatic) |
227 | CmdArgs.push_back("-Bstatic"); |
228 | TC.AddCXXStdlibLibArgs(Args, CmdArgs); |
229 | if (OnlyLibstdcxxStatic) |
230 | CmdArgs.push_back("-Bdynamic"); |
231 | } |
232 | |
233 | bool HasWindowsApp = false; |
234 | for (auto Lib : Args.getAllArgValues(options::OPT_l)) { |
235 | if (Lib == "windowsapp") { |
236 | HasWindowsApp = true; |
237 | break; |
238 | } |
239 | } |
240 | |
241 | if (!Args.hasArg(options::OPT_nostdlib)) { |
242 | if (!Args.hasArg(options::OPT_nodefaultlibs)) { |
243 | if (Args.hasArg(options::OPT_static)) |
244 | CmdArgs.push_back("--start-group"); |
245 | |
246 | if (Args.hasArg(options::OPT_fstack_protector) || |
247 | Args.hasArg(options::OPT_fstack_protector_strong) || |
248 | Args.hasArg(options::OPT_fstack_protector_all)) { |
249 | CmdArgs.push_back("-lssp_nonshared"); |
250 | CmdArgs.push_back("-lssp"); |
251 | } |
252 | |
253 | if (Args.hasFlag(options::OPT_fopenmp, options::OPT_fopenmp_EQ, |
254 | options::OPT_fno_openmp, false)) { |
255 | switch (TC.getDriver().getOpenMPRuntime(Args)) { |
256 | case Driver::OMPRT_OMP: |
257 | CmdArgs.push_back("-lomp"); |
258 | break; |
259 | case Driver::OMPRT_IOMP5: |
260 | CmdArgs.push_back("-liomp5md"); |
261 | break; |
262 | case Driver::OMPRT_GOMP: |
263 | CmdArgs.push_back("-lgomp"); |
264 | break; |
265 | case Driver::OMPRT_Unknown: |
266 | // Already diagnosed. |
267 | break; |
268 | } |
269 | } |
270 | |
271 | AddLibGCC(Args, CmdArgs); |
272 | |
273 | if (Args.hasArg(options::OPT_pg)) |
274 | CmdArgs.push_back("-lgmon"); |
275 | |
276 | if (Args.hasArg(options::OPT_pthread)) |
277 | CmdArgs.push_back("-lpthread"); |
278 | |
279 | if (Sanitize.needsAsanRt()) { |
280 | // MinGW always links against a shared MSVCRT. |
281 | CmdArgs.push_back(TC.getCompilerRTArgString(Args, "asan_dynamic", |
282 | ToolChain::FT_Shared)); |
283 | CmdArgs.push_back( |
284 | TC.getCompilerRTArgString(Args, "asan_dynamic_runtime_thunk")); |
285 | CmdArgs.push_back("--require-defined"); |
286 | CmdArgs.push_back(TC.getArch() == llvm::Triple::x86 |
287 | ? "___asan_seh_interceptor" |
288 | : "__asan_seh_interceptor"); |
289 | // Make sure the linker consider all object files from the dynamic |
290 | // runtime thunk. |
291 | CmdArgs.push_back("--whole-archive"); |
292 | CmdArgs.push_back( |
293 | TC.getCompilerRTArgString(Args, "asan_dynamic_runtime_thunk")); |
294 | CmdArgs.push_back("--no-whole-archive"); |
295 | } |
296 | |
297 | TC.addProfileRTLibs(Args, CmdArgs); |
298 | |
299 | if (!HasWindowsApp) { |
300 | // Add system libraries. If linking to libwindowsapp.a, that import |
301 | // library replaces all these and we shouldn't accidentally try to |
302 | // link to the normal desktop mode dlls. |
303 | if (Args.hasArg(options::OPT_mwindows)) { |
304 | CmdArgs.push_back("-lgdi32"); |
305 | CmdArgs.push_back("-lcomdlg32"); |
306 | } |
307 | CmdArgs.push_back("-ladvapi32"); |
308 | CmdArgs.push_back("-lshell32"); |
309 | CmdArgs.push_back("-luser32"); |
310 | CmdArgs.push_back("-lkernel32"); |
311 | } |
312 | |
313 | if (Args.hasArg(options::OPT_static)) { |
314 | CmdArgs.push_back("--end-group"); |
315 | } else { |
316 | AddLibGCC(Args, CmdArgs); |
317 | if (!HasWindowsApp) |
318 | CmdArgs.push_back("-lkernel32"); |
319 | } |
320 | } |
321 | |
322 | if (!Args.hasArg(options::OPT_nostartfiles)) { |
323 | // Add crtfastmath.o if available and fast math is enabled. |
324 | TC.addFastMathRuntimeIfAvailable(Args, CmdArgs); |
325 | |
326 | CmdArgs.push_back(Args.MakeArgString(TC.GetFilePath("crtend.o"))); |
327 | } |
328 | } |
329 | const char *Exec = Args.MakeArgString(TC.GetLinkerPath()); |
330 | C.addCommand(std::make_unique<Command>(JA, *this, |
331 | ResponseFileSupport::AtFileUTF8(), |
332 | Exec, CmdArgs, Inputs, Output)); |
333 | } |
334 | |
335 | // Simplified from Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple. |
336 | static bool findGccVersion(StringRef LibDir, std::string &GccLibDir, |
337 | std::string &Ver) { |
338 | auto Version = toolchains::Generic_GCC::GCCVersion::Parse("0.0.0"); |
339 | std::error_code EC; |
340 | for (llvm::sys::fs::directory_iterator LI(LibDir, EC), LE; !EC && LI != LE; |
341 | LI = LI.increment(EC)) { |
342 | StringRef VersionText = llvm::sys::path::filename(LI->path()); |
343 | auto CandidateVersion = |
344 | toolchains::Generic_GCC::GCCVersion::Parse(VersionText); |
345 | if (CandidateVersion.Major == -1) |
346 | continue; |
347 | if (CandidateVersion <= Version) |
348 | continue; |
349 | Version = CandidateVersion; |
350 | Ver = std::string(VersionText); |
351 | GccLibDir = LI->path(); |
352 | } |
353 | return Ver.size(); |
354 | } |
355 | |
356 | void toolchains::MinGW::findGccLibDir() { |
357 | llvm::SmallVector<llvm::SmallString<32>, 2> SubdirNames; |
358 | SubdirNames.emplace_back(getTriple().getArchName()); |
359 | SubdirNames[0] += "-w64-mingw32"; |
360 | SubdirNames.emplace_back("mingw32"); |
361 | if (SubdirName.empty()) |
362 | SubdirName = std::string(SubdirNames[0].str()); |
363 | // lib: Arch Linux, Ubuntu, Windows |
364 | // lib64: openSUSE Linux |
365 | for (StringRef CandidateLib : {"lib", "lib64"}) { |
366 | for (StringRef CandidateSysroot : SubdirNames) { |
367 | llvm::SmallString<1024> LibDir(Base); |
368 | llvm::sys::path::append(LibDir, CandidateLib, "gcc", CandidateSysroot); |
369 | if (findGccVersion(LibDir, GccLibDir, Ver)) { |
370 | SubdirName = std::string(CandidateSysroot); |
371 | return; |
372 | } |
373 | } |
374 | } |
375 | } |
376 | |
377 | static llvm::ErrorOr<std::string> findGcc(const llvm::Triple &T) { |
378 | llvm::SmallVector<llvm::SmallString<32>, 2> Gccs; |
379 | Gccs.emplace_back(T.getArchName()); |
380 | Gccs[0] += "-w64-mingw32-gcc"; |
381 | Gccs.emplace_back("mingw32-gcc"); |
382 | // Please do not add "gcc" here |
383 | for (StringRef CandidateGcc : Gccs) |
384 | if (llvm::ErrorOr<std::string> GPPName = llvm::sys::findProgramByName(CandidateGcc)) |
385 | return GPPName; |
386 | return make_error_code(std::errc::no_such_file_or_directory); |
387 | } |
388 | |
389 | static llvm::ErrorOr<std::string> |
390 | findClangRelativeSysroot(const Driver &D, const llvm::Triple &T, |
391 | std::string &SubdirName) { |
392 | llvm::SmallVector<llvm::SmallString<32>, 2> Subdirs; |
393 | Subdirs.emplace_back(T.str()); |
394 | Subdirs.emplace_back(T.getArchName()); |
395 | Subdirs[1] += "-w64-mingw32"; |
396 | StringRef ClangRoot = llvm::sys::path::parent_path(D.getInstalledDir()); |
397 | StringRef Sep = llvm::sys::path::get_separator(); |
398 | for (StringRef CandidateSubdir : Subdirs) { |
399 | if (llvm::sys::fs::is_directory(ClangRoot + Sep + CandidateSubdir)) { |
400 | SubdirName = std::string(CandidateSubdir); |
401 | return (ClangRoot + Sep + CandidateSubdir).str(); |
402 | } |
403 | } |
404 | return make_error_code(std::errc::no_such_file_or_directory); |
405 | } |
406 | |
407 | toolchains::MinGW::MinGW(const Driver &D, const llvm::Triple &Triple, |
408 | const ArgList &Args) |
409 | : ToolChain(D, Triple, Args), CudaInstallation(D, Triple, Args), |
410 | RocmInstallation(D, Triple, Args) { |
411 | getProgramPaths().push_back(getDriver().getInstalledDir()); |
412 | |
413 | // The sequence for detecting a sysroot here should be kept in sync with |
414 | // the testTriple function below. |
415 | if (getDriver().SysRoot.size()) |
416 | Base = getDriver().SysRoot; |
417 | // Look for <clang-bin>/../<triplet>; if found, use <clang-bin>/.. as the |
418 | // base as it could still be a base for a gcc setup with libgcc. |
419 | else if (llvm::ErrorOr<std::string> TargetSubdir = |
420 | findClangRelativeSysroot(getDriver(), getTriple(), SubdirName)) |
421 | Base = std::string(llvm::sys::path::parent_path(TargetSubdir.get())); |
422 | else if (llvm::ErrorOr<std::string> GPPName = findGcc(getTriple())) |
423 | Base = std::string(llvm::sys::path::parent_path( |
424 | llvm::sys::path::parent_path(GPPName.get()))); |
425 | else |
426 | Base = std::string( |
427 | llvm::sys::path::parent_path(getDriver().getInstalledDir())); |
428 | |
429 | Base += llvm::sys::path::get_separator(); |
430 | findGccLibDir(); |
431 | // GccLibDir must precede Base/lib so that the |
432 | // correct crtbegin.o ,cetend.o would be found. |
433 | getFilePaths().push_back(GccLibDir); |
434 | getFilePaths().push_back( |
435 | (Base + SubdirName + llvm::sys::path::get_separator() + "lib").str()); |
436 | getFilePaths().push_back(Base + "lib"); |
437 | // openSUSE |
438 | getFilePaths().push_back(Base + SubdirName + "/sys-root/mingw/lib"); |
439 | |
440 | NativeLLVMSupport = |
441 | Args.getLastArgValue(options::OPT_fuse_ld_EQ, CLANG_DEFAULT_LINKER"ld") |
442 | .equals_insensitive("lld"); |
443 | } |
444 | |
445 | bool toolchains::MinGW::IsIntegratedAssemblerDefault() const { return true; } |
446 | |
447 | Tool *toolchains::MinGW::getTool(Action::ActionClass AC) const { |
448 | switch (AC) { |
449 | case Action::PreprocessJobClass: |
450 | if (!Preprocessor) |
451 | Preprocessor.reset(new tools::gcc::Preprocessor(*this)); |
452 | return Preprocessor.get(); |
453 | case Action::CompileJobClass: |
454 | if (!Compiler) |
455 | Compiler.reset(new tools::gcc::Compiler(*this)); |
456 | return Compiler.get(); |
457 | default: |
458 | return ToolChain::getTool(AC); |
459 | } |
460 | } |
461 | |
462 | Tool *toolchains::MinGW::buildAssembler() const { |
463 | return new tools::MinGW::Assembler(*this); |
464 | } |
465 | |
466 | Tool *toolchains::MinGW::buildLinker() const { |
467 | return new tools::MinGW::Linker(*this); |
468 | } |
469 | |
470 | bool toolchains::MinGW::HasNativeLLVMSupport() const { |
471 | return NativeLLVMSupport; |
472 | } |
473 | |
474 | bool toolchains::MinGW::IsUnwindTablesDefault(const ArgList &Args) const { |
475 | Arg *ExceptionArg = Args.getLastArg(options::OPT_fsjlj_exceptions, |
476 | options::OPT_fseh_exceptions, |
477 | options::OPT_fdwarf_exceptions); |
478 | if (ExceptionArg && |
479 | ExceptionArg->getOption().matches(options::OPT_fseh_exceptions)) |
480 | return true; |
481 | return getArch() == llvm::Triple::x86_64 || |
482 | getArch() == llvm::Triple::aarch64; |
483 | } |
484 | |
485 | bool toolchains::MinGW::isPICDefault() const { |
486 | return getArch() == llvm::Triple::x86_64 || |
487 | getArch() == llvm::Triple::aarch64; |
488 | } |
489 | |
490 | bool toolchains::MinGW::isPIEDefault(const llvm::opt::ArgList &Args) const { |
491 | return false; |
492 | } |
493 | |
494 | bool toolchains::MinGW::isPICDefaultForced() const { return true; } |
495 | |
496 | llvm::ExceptionHandling |
497 | toolchains::MinGW::GetExceptionModel(const ArgList &Args) const { |
498 | if (getArch() == llvm::Triple::x86_64 || getArch() == llvm::Triple::aarch64) |
499 | return llvm::ExceptionHandling::WinEH; |
500 | return llvm::ExceptionHandling::DwarfCFI; |
501 | } |
502 | |
503 | SanitizerMask toolchains::MinGW::getSupportedSanitizers() const { |
504 | SanitizerMask Res = ToolChain::getSupportedSanitizers(); |
505 | Res |= SanitizerKind::Address; |
506 | Res |= SanitizerKind::PointerCompare; |
507 | Res |= SanitizerKind::PointerSubtract; |
508 | Res |= SanitizerKind::Vptr; |
509 | return Res; |
510 | } |
511 | |
512 | void toolchains::MinGW::AddCudaIncludeArgs(const ArgList &DriverArgs, |
513 | ArgStringList &CC1Args) const { |
514 | CudaInstallation.AddCudaIncludeArgs(DriverArgs, CC1Args); |
515 | } |
516 | |
517 | void toolchains::MinGW::AddHIPIncludeArgs(const ArgList &DriverArgs, |
518 | ArgStringList &CC1Args) const { |
519 | RocmInstallation.AddHIPIncludeArgs(DriverArgs, CC1Args); |
520 | } |
521 | |
522 | void toolchains::MinGW::printVerboseInfo(raw_ostream &OS) const { |
523 | CudaInstallation.print(OS); |
524 | RocmInstallation.print(OS); |
525 | } |
526 | |
527 | // Include directories for various hosts: |
528 | |
529 | // Windows, mingw.org |
530 | // c:\mingw\lib\gcc\mingw32\4.8.1\include\c++ |
531 | // c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\mingw32 |
532 | // c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\backward |
533 | // c:\mingw\include |
534 | // c:\mingw\mingw32\include |
535 | |
536 | // Windows, mingw-w64 mingw-builds |
537 | // c:\mingw32\i686-w64-mingw32\include |
538 | // c:\mingw32\i686-w64-mingw32\include\c++ |
539 | // c:\mingw32\i686-w64-mingw32\include\c++\i686-w64-mingw32 |
540 | // c:\mingw32\i686-w64-mingw32\include\c++\backward |
541 | |
542 | // Windows, mingw-w64 msys2 |
543 | // c:\msys64\mingw32\include |
544 | // c:\msys64\mingw32\i686-w64-mingw32\include |
545 | // c:\msys64\mingw32\include\c++\4.9.2 |
546 | // c:\msys64\mingw32\include\c++\4.9.2\i686-w64-mingw32 |
547 | // c:\msys64\mingw32\include\c++\4.9.2\backward |
548 | |
549 | // openSUSE |
550 | // /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/include/c++ |
551 | // /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/include/c++/x86_64-w64-mingw32 |
552 | // /usr/lib64/gcc/x86_64-w64-mingw32/5.1.0/include/c++/backward |
553 | // /usr/x86_64-w64-mingw32/sys-root/mingw/include |
554 | |
555 | // Arch Linux |
556 | // /usr/i686-w64-mingw32/include/c++/5.1.0 |
557 | // /usr/i686-w64-mingw32/include/c++/5.1.0/i686-w64-mingw32 |
558 | // /usr/i686-w64-mingw32/include/c++/5.1.0/backward |
559 | // /usr/i686-w64-mingw32/include |
560 | |
561 | // Ubuntu |
562 | // /usr/include/c++/4.8 |
563 | // /usr/include/c++/4.8/x86_64-w64-mingw32 |
564 | // /usr/include/c++/4.8/backward |
565 | // /usr/x86_64-w64-mingw32/include |
566 | |
567 | void toolchains::MinGW::AddClangSystemIncludeArgs(const ArgList &DriverArgs, |
568 | ArgStringList &CC1Args) const { |
569 | if (DriverArgs.hasArg(options::OPT_nostdinc)) |
570 | return; |
571 | |
572 | if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) { |
573 | SmallString<1024> P(getDriver().ResourceDir); |
574 | llvm::sys::path::append(P, "include"); |
575 | addSystemInclude(DriverArgs, CC1Args, P.str()); |
576 | } |
577 | |
578 | if (DriverArgs.hasArg(options::OPT_nostdlibinc)) |
579 | return; |
580 | |
581 | if (GetRuntimeLibType(DriverArgs) == ToolChain::RLT_Libgcc) { |
582 | // openSUSE |
583 | addSystemInclude(DriverArgs, CC1Args, |
584 | Base + SubdirName + "/sys-root/mingw/include"); |
585 | } |
586 | |
587 | addSystemInclude(DriverArgs, CC1Args, |
588 | Base + SubdirName + llvm::sys::path::get_separator() + |
589 | "include"); |
590 | addSystemInclude(DriverArgs, CC1Args, Base + "include"); |
591 | } |
592 | |
593 | void toolchains::MinGW::AddClangCXXStdlibIncludeArgs( |
594 | const ArgList &DriverArgs, ArgStringList &CC1Args) const { |
595 | if (DriverArgs.hasArg(options::OPT_nostdlibinc) || |
596 | DriverArgs.hasArg(options::OPT_nostdincxx)) |
597 | return; |
598 | |
599 | StringRef Slash = llvm::sys::path::get_separator(); |
600 | |
601 | switch (GetCXXStdlibType(DriverArgs)) { |
602 | case ToolChain::CST_Libcxx: { |
603 | std::string TargetDir = (Base + "include" + Slash + getTripleString() + |
604 | Slash + "c++" + Slash + "v1") |
605 | .str(); |
606 | if (getDriver().getVFS().exists(TargetDir)) |
607 | addSystemInclude(DriverArgs, CC1Args, TargetDir); |
608 | addSystemInclude(DriverArgs, CC1Args, |
609 | Base + SubdirName + Slash + "include" + Slash + "c++" + |
610 | Slash + "v1"); |
611 | addSystemInclude(DriverArgs, CC1Args, |
612 | Base + "include" + Slash + "c++" + Slash + "v1"); |
613 | break; |
614 | } |
615 | |
616 | case ToolChain::CST_Libstdcxx: |
617 | llvm::SmallVector<llvm::SmallString<1024>, 4> CppIncludeBases; |
618 | CppIncludeBases.emplace_back(Base); |
619 | llvm::sys::path::append(CppIncludeBases[0], SubdirName, "include", "c++"); |
620 | CppIncludeBases.emplace_back(Base); |
621 | llvm::sys::path::append(CppIncludeBases[1], SubdirName, "include", "c++", |
622 | Ver); |
623 | CppIncludeBases.emplace_back(Base); |
624 | llvm::sys::path::append(CppIncludeBases[2], "include", "c++", Ver); |
625 | CppIncludeBases.emplace_back(GccLibDir); |
626 | llvm::sys::path::append(CppIncludeBases[3], "include", "c++"); |
627 | for (auto &CppIncludeBase : CppIncludeBases) { |
628 | addSystemInclude(DriverArgs, CC1Args, CppIncludeBase); |
629 | CppIncludeBase += Slash; |
630 | addSystemInclude(DriverArgs, CC1Args, CppIncludeBase + SubdirName); |
631 | addSystemInclude(DriverArgs, CC1Args, CppIncludeBase + "backward"); |
632 | } |
633 | break; |
634 | } |
635 | } |
636 | |
637 | static bool testTriple(const Driver &D, const llvm::Triple &Triple, |
638 | const ArgList &Args) { |
639 | // If an explicit sysroot is set, that will be used and we shouldn't try to |
640 | // detect anything else. |
641 | std::string SubdirName; |
642 | if (D.SysRoot.size()) |
643 | return true; |
644 | if (llvm::ErrorOr<std::string> TargetSubdir = |
645 | findClangRelativeSysroot(D, Triple, SubdirName)) |
646 | return true; |
647 | if (llvm::ErrorOr<std::string> GPPName = findGcc(Triple)) |
648 | return true; |
649 | // If we neither found a colocated sysroot or a matching gcc executable, |
650 | // conclude that we can't know if this is the correct spelling of the triple. |
651 | return false; |
652 | } |
653 | |
654 | static llvm::Triple adjustTriple(const Driver &D, const llvm::Triple &Triple, |
655 | const ArgList &Args) { |
656 | // First test if the original triple can find a sysroot with the triple |
657 | // name. |
658 | if (testTriple(D, Triple, Args)) |
659 | return Triple; |
660 | llvm::SmallVector<llvm::StringRef, 3> Archs; |
661 | // If not, test a couple other possible arch names that might be what was |
662 | // intended. |
663 | if (Triple.getArch() == llvm::Triple::x86) { |
664 | Archs.emplace_back("i386"); |
665 | Archs.emplace_back("i586"); |
666 | Archs.emplace_back("i686"); |
667 | } else if (Triple.getArch() == llvm::Triple::arm || |
668 | Triple.getArch() == llvm::Triple::thumb) { |
669 | Archs.emplace_back("armv7"); |
670 | } |
671 | for (auto A : Archs) { |
672 | llvm::Triple TestTriple(Triple); |
673 | TestTriple.setArchName(A); |
674 | if (testTriple(D, TestTriple, Args)) |
675 | return TestTriple; |
676 | } |
677 | // If none was found, just proceed with the original value. |
678 | return Triple; |
679 | } |
680 | |
681 | void toolchains::MinGW::fixTripleArch(const Driver &D, llvm::Triple &Triple, |
682 | const ArgList &Args) { |
683 | if (Triple.getArch() == llvm::Triple::x86 || |
684 | Triple.getArch() == llvm::Triple::arm || |
685 | Triple.getArch() == llvm::Triple::thumb) |
686 | Triple = adjustTriple(D, Triple, Args); |
687 | } |