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