clang 10.0.0git

Gnu.cpp
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1 //===--- Gnu.cpp - Gnu Tool and ToolChain Implementations -------*- C++ -*-===//
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 "Gnu.h"
10 #include "Arch/ARM.h"
11 #include "Arch/Mips.h"
12 #include "Arch/PPC.h"
13 #include "Arch/RISCV.h"
14 #include "Arch/Sparc.h"
15 #include "Arch/SystemZ.h"
16 #include "CommonArgs.h"
17 #include "Linux.h"
18 #include "clang/Config/config.h" // for GCC_INSTALL_PREFIX
19 #include "clang/Driver/Compilation.h"
20 #include "clang/Driver/Driver.h"
21 #include "clang/Driver/DriverDiagnostic.h"
22 #include "clang/Driver/Options.h"
23 #include "clang/Driver/Tool.h"
24 #include "clang/Driver/ToolChain.h"
25 #include "llvm/Option/ArgList.h"
26 #include "llvm/Support/CodeGen.h"
27 #include "llvm/Support/Path.h"
28 #include "llvm/Support/TargetParser.h"
29 #include "llvm/Support/VirtualFileSystem.h"
30 #include <system_error>
31
32 using namespace clang::driver;
33 using namespace clang::driver::toolchains;
34 using namespace clang;
35 using namespace llvm::opt;
36
37 using tools::addMultilibFlag;
38
39 void tools::GnuTool::anchor() {}
40
41 static bool forwardToGCC(const Option &O) {
42 // Don't forward inputs from the original command line. They are added from
43 // InputInfoList.
44 return O.getKind() != Option::InputClass &&
45 !O.hasFlag(options::DriverOption) && !O.hasFlag(options::LinkerInput);
46 }
47
48 // Switch CPU names not recognized by GNU assembler to a close CPU that it does
49 // recognize, instead of a lower march from being picked in the absence of a cpu
50 // flag.
51 static void normalizeCPUNamesForAssembler(const ArgList &Args,
52 ArgStringList &CmdArgs) {
53 if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) {
54 StringRef CPUArg(A->getValue());
55 if (CPUArg.equals_lower("krait"))
56 CmdArgs.push_back("-mcpu=cortex-a15");
57 else if(CPUArg.equals_lower("kryo"))
58 CmdArgs.push_back("-mcpu=cortex-a57");
59 else
60 Args.AddLastArg(CmdArgs, options::OPT_mcpu_EQ);
61 }
62 }
63
64 void tools::gcc::Common::ConstructJob(Compilation &C, const JobAction &JA,
65 const InputInfo &Output,
66 const InputInfoList &Inputs,
67 const ArgList &Args,
68 const char *LinkingOutput) const {
69 const Driver &D = getToolChain().getDriver();
70 ArgStringList CmdArgs;
71
72 for (const auto &A : Args) {
73 if (forwardToGCC(A->getOption())) {
74 // It is unfortunate that we have to claim here, as this means
75 // we will basically never report anything interesting for
76 // platforms using a generic gcc, even if we are just using gcc
77 // to get to the assembler.
78 A->claim();
79
80 // Don't forward any -g arguments to assembly steps.
81 if (isa<AssembleJobAction>(JA) &&
82 A->getOption().matches(options::OPT_g_Group))
83 continue;
84
85 // Don't forward any -W arguments to assembly and link steps.
86 if ((isa<AssembleJobAction>(JA) || isa<LinkJobAction>(JA)) &&
87 A->getOption().matches(options::OPT_W_Group))
88 continue;
89
90 // Don't forward -mno-unaligned-access since GCC doesn't understand
91 // it and because it doesn't affect the assembly or link steps.
92 if ((isa<AssembleJobAction>(JA) || isa<LinkJobAction>(JA)) &&
93 (A->getOption().matches(options::OPT_munaligned_access) ||
94 A->getOption().matches(options::OPT_mno_unaligned_access)))
95 continue;
96
97 A->render(Args, CmdArgs);
98 }
99 }
100
101 RenderExtraToolArgs(JA, CmdArgs);
102
103 // If using a driver driver, force the arch.
104 if (getToolChain().getTriple().isOSDarwin()) {
105 CmdArgs.push_back("-arch");
106 CmdArgs.push_back(
107 Args.MakeArgString(getToolChain().getDefaultUniversalArchName()));
108 }
109
110 // Try to force gcc to match the tool chain we want, if we recognize
111 // the arch.
112 //
113 // FIXME: The triple class should directly provide the information we want
114 // here.
115 switch (getToolChain().getArch()) {
116 default:
117 break;
118 case llvm::Triple::x86:
119 case llvm::Triple::ppc:
120 CmdArgs.push_back("-m32");
121 break;
122 case llvm::Triple::x86_64:
123 case llvm::Triple::ppc64:
124 case llvm::Triple::ppc64le:
125 CmdArgs.push_back("-m64");
126 break;
127 case llvm::Triple::sparcel:
128 CmdArgs.push_back("-EL");
129 break;
130 }
131
132 if (Output.isFilename()) {
133 CmdArgs.push_back("-o");
134 CmdArgs.push_back(Output.getFilename());
135 } else {
136 assert(Output.isNothing() && "Unexpected output");
137 CmdArgs.push_back("-fsyntax-only");
138 }
139
140 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
141
142 // Only pass -x if gcc will understand it; otherwise hope gcc
143 // understands the suffix correctly. The main use case this would go
144 // wrong in is for linker inputs if they happened to have an odd
145 // suffix; really the only way to get this to happen is a command
146 // like '-x foobar a.c' which will treat a.c like a linker input.
147 //
148 // FIXME: For the linker case specifically, can we safely convert
149 // inputs into '-Wl,' options?
150 for (const auto &II : Inputs) {
151 // Don't try to pass LLVM or AST inputs to a generic gcc.
152 if (types::isLLVMIR(II.getType()))
153 D.Diag(clang::diag::err_drv_no_linker_llvm_support)
154 << getToolChain().getTripleString();
155 else if (II.getType() == types::TY_AST)
156 D.Diag(diag::err_drv_no_ast_support) << getToolChain().getTripleString();
157 else if (II.getType() == types::TY_ModuleFile)
158 D.Diag(diag::err_drv_no_module_support)
159 << getToolChain().getTripleString();
160
161 if (types::canTypeBeUserSpecified(II.getType())) {
162 CmdArgs.push_back("-x");
163 CmdArgs.push_back(types::getTypeName(II.getType()));
164 }
165
166 if (II.isFilename())
167 CmdArgs.push_back(II.getFilename());
168 else {
169 const Arg &A = II.getInputArg();
170
171 // Reverse translate some rewritten options.
172 if (A.getOption().matches(options::OPT_Z_reserved_lib_stdcxx)) {
173 CmdArgs.push_back("-lstdc++");
174 continue;
175 }
176
177 // Don't render as input, we need gcc to do the translations.
178 A.render(Args, CmdArgs);
179 }
180 }
181
182 const std::string &customGCCName = D.getCCCGenericGCCName();
183 const char *GCCName;
184 if (!customGCCName.empty())
185 GCCName = customGCCName.c_str();
186 else if (D.CCCIsCXX()) {
187 GCCName = "g++";
188 } else
189 GCCName = "gcc";
190
191 const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath(GCCName));
192 C.addCommand(std::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
193 }
194
195 void tools::gcc::Preprocessor::RenderExtraToolArgs(
196 const JobAction &JA, ArgStringList &CmdArgs) const {
197 CmdArgs.push_back("-E");
198 }
199
200 void tools::gcc::Compiler::RenderExtraToolArgs(const JobAction &JA,
201 ArgStringList &CmdArgs) const {
202 const Driver &D = getToolChain().getDriver();
203
204 switch (JA.getType()) {
205 // If -flto, etc. are present then make sure not to force assembly output.
206 case types::TY_LLVM_IR:
207 case types::TY_LTO_IR:
208 case types::TY_LLVM_BC:
209 case types::TY_LTO_BC:
210 CmdArgs.push_back("-c");
211 break;
212 // We assume we've got an "integrated" assembler in that gcc will produce an
213 // object file itself.
214 case types::TY_Object:
215 CmdArgs.push_back("-c");
216 break;
217 case types::TY_PP_Asm:
218 CmdArgs.push_back("-S");
219 break;
220 case types::TY_Nothing:
221 CmdArgs.push_back("-fsyntax-only");
222 break;
223 default:
224 D.Diag(diag::err_drv_invalid_gcc_output_type) << getTypeName(JA.getType());
225 }
226 }
227
228 void tools::gcc::Linker::RenderExtraToolArgs(const JobAction &JA,
229 ArgStringList &CmdArgs) const {
230 // The types are (hopefully) good enough.
231 }
232
233 // On Arm the endianness of the output file is determined by the target and
234 // can be overridden by the pseudo-target flags '-mlittle-endian'/'-EL' and
235 // '-mbig-endian'/'-EB'. Unlike other targets the flag does not result in a
236 // normalized triple so we must handle the flag here.
237 static bool isArmBigEndian(const llvm::Triple &Triple,
238 const ArgList &Args) {
239 bool IsBigEndian = false;
240 switch (Triple.getArch()) {
241 case llvm::Triple::armeb:
242 case llvm::Triple::thumbeb:
243 IsBigEndian = true;
244 LLVM_FALLTHROUGH;
245 case llvm::Triple::arm:
246 case llvm::Triple::thumb:
247 if (Arg *A = Args.getLastArg(options::OPT_mlittle_endian,
248 options::OPT_mbig_endian))
249 IsBigEndian = !A->getOption().matches(options::OPT_mlittle_endian);
250 break;
251 default:
252 break;
253 }
254 return IsBigEndian;
255 }
256
257 static const char *getLDMOption(const llvm::Triple &T, const ArgList &Args) {
258 switch (T.getArch()) {
259 case llvm::Triple::x86:
260 if (T.isOSIAMCU())
261 return "elf_iamcu";
262 return "elf_i386";
263 case llvm::Triple::aarch64:
264 return "aarch64linux";
265 case llvm::Triple::aarch64_be:
266 return "aarch64linuxb";
267 case llvm::Triple::arm:
268 case llvm::Triple::thumb:
269 case llvm::Triple::armeb:
270 case llvm::Triple::thumbeb:
271 return isArmBigEndian(T, Args) ? "armelfb_linux_eabi" : "armelf_linux_eabi";
272 case llvm::Triple::ppc:
273 return "elf32ppclinux";
274 case llvm::Triple::ppc64:
275 return "elf64ppc";
276 case llvm::Triple::ppc64le:
277 return "elf64lppc";
278 case llvm::Triple::riscv32:
279 return "elf32lriscv";
280 case llvm::Triple::riscv64:
281 return "elf64lriscv";
282 case llvm::Triple::sparc:
283 case llvm::Triple::sparcel:
284 return "elf32_sparc";
285 case llvm::Triple::sparcv9:
286 return "elf64_sparc";
287 case llvm::Triple::mips:
288 return "elf32btsmip";
289 case llvm::Triple::mipsel:
290 return "elf32ltsmip";
291 case llvm::Triple::mips64:
292 if (tools::mips::hasMipsAbiArg(Args, "n32") ||
293 T.getEnvironment() == llvm::Triple::GNUABIN32)
294 return "elf32btsmipn32";
295 return "elf64btsmip";
296 case llvm::Triple::mips64el:
297 if (tools::mips::hasMipsAbiArg(Args, "n32") ||
298 T.getEnvironment() == llvm::Triple::GNUABIN32)
299 return "elf32ltsmipn32";
300 return "elf64ltsmip";
301 case llvm::Triple::systemz:
302 return "elf64_s390";
303 case llvm::Triple::x86_64:
304 if (T.getEnvironment() == llvm::Triple::GNUX32)
305 return "elf32_x86_64";
306 return "elf_x86_64";
307 default:
308 return nullptr;
309 }
310 }
311
312 static bool getPIE(const ArgList &Args, const toolchains::Linux &ToolChain) {
313 if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_static) ||
314 Args.hasArg(options::OPT_r) || Args.hasArg(options::OPT_static_pie))
315 return false;
316
317 Arg *A = Args.getLastArg(options::OPT_pie, options::OPT_no_pie,
318 options::OPT_nopie);
319 if (!A)
320 return ToolChain.isPIEDefault();
321 return A->getOption().matches(options::OPT_pie);
322 }
323
324 static bool getStaticPIE(const ArgList &Args,
325 const toolchains::Linux &ToolChain) {
326 bool HasStaticPIE = Args.hasArg(options::OPT_static_pie);
327 // -no-pie is an alias for -nopie. So, handling -nopie takes care of
328 // -no-pie as well.
329 if (HasStaticPIE && Args.hasArg(options::OPT_nopie)) {
330 const Driver &D = ToolChain.getDriver();
331 const llvm::opt::OptTable &Opts = D.getOpts();
332 const char *StaticPIEName = Opts.getOptionName(options::OPT_static_pie);
333 const char *NoPIEName = Opts.getOptionName(options::OPT_nopie);
334 D.Diag(diag::err_drv_cannot_mix_options) << StaticPIEName << NoPIEName;
335 }
336 return HasStaticPIE;
337 }
338
339 static bool getStatic(const ArgList &Args) {
340 return Args.hasArg(options::OPT_static) &&
341 !Args.hasArg(options::OPT_static_pie);
342 }
343
344 void tools::gnutools::Linker::ConstructJob(Compilation &C, const JobAction &JA,
345 const InputInfo &Output,
346 const InputInfoList &Inputs,
347 const ArgList &Args,
348 const char *LinkingOutput) const {
349 const toolchains::Linux &ToolChain =
350 static_cast<const toolchains::Linux &>(getToolChain());
351 const Driver &D = ToolChain.getDriver();
352
353 const llvm::Triple &Triple = getToolChain().getEffectiveTriple();
354
355 const llvm::Triple::ArchType Arch = ToolChain.getArch();
356 const bool isAndroid = ToolChain.getTriple().isAndroid();
357 const bool IsIAMCU = ToolChain.getTriple().isOSIAMCU();
358 const bool IsPIE = getPIE(Args, ToolChain);
359 const bool IsStaticPIE = getStaticPIE(Args, ToolChain);
360 const bool IsStatic = getStatic(Args);
361 const bool HasCRTBeginEndFiles =
362 ToolChain.getTriple().hasEnvironment() ||
363 (ToolChain.getTriple().getVendor() != llvm::Triple::MipsTechnologies);
364
365 ArgStringList CmdArgs;
366
367 // Silence warning for "clang -g foo.o -o foo"
368 Args.ClaimAllArgs(options::OPT_g_Group);
369 // and "clang -emit-llvm foo.o -o foo"
370 Args.ClaimAllArgs(options::OPT_emit_llvm);
371 // and for "clang -w foo.o -o foo". Other warning options are already
372 // handled somewhere else.
373 Args.ClaimAllArgs(options::OPT_w);
374
375 if (!D.SysRoot.empty())
376 CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot));
377
378 if (IsPIE)
379 CmdArgs.push_back("-pie");
380
381 if (IsStaticPIE) {
382 CmdArgs.push_back("-static");
383 CmdArgs.push_back("-pie");
384 CmdArgs.push_back("--no-dynamic-linker");
385 CmdArgs.push_back("-z");
386 CmdArgs.push_back("text");
387 }
388
389 if (ToolChain.isNoExecStackDefault()) {
390 CmdArgs.push_back("-z");
391 CmdArgs.push_back("noexecstack");
392 }
393
394 if (Args.hasArg(options::OPT_rdynamic))
395 CmdArgs.push_back("-export-dynamic");
396
397 if (Args.hasArg(options::OPT_s))
398 CmdArgs.push_back("-s");
399
400 if (Triple.isARM() || Triple.isThumb() || Triple.isAArch64()) {
401 bool IsBigEndian = isArmBigEndian(Triple, Args);
402 if (IsBigEndian)
403 arm::appendBE8LinkFlag(Args, CmdArgs, Triple);
404 IsBigEndian = IsBigEndian || Arch == llvm::Triple::aarch64_be;
405 CmdArgs.push_back(IsBigEndian ? "-EB" : "-EL");
406 }
407
408 // Most Android ARM64 targets should enable the linker fix for erratum
409 // 843419. Only non-Cortex-A53 devices are allowed to skip this flag.
410 if (Arch == llvm::Triple::aarch64 && isAndroid) {
411 std::string CPU = getCPUName(Args, Triple);
412 if (CPU.empty() || CPU == "generic" || CPU == "cortex-a53")
413 CmdArgs.push_back("--fix-cortex-a53-843419");
414 }
415
416 // Android does not allow shared text relocations. Emit a warning if the
417 // user's code contains any.
418 if (isAndroid)
419 CmdArgs.push_back("--warn-shared-textrel");
420
421 for (const auto &Opt : ToolChain.ExtraOpts)
422 CmdArgs.push_back(Opt.c_str());
423
424 CmdArgs.push_back("--eh-frame-hdr");
425
426 if (const char *LDMOption = getLDMOption(ToolChain.getTriple(), Args)) {
427 CmdArgs.push_back("-m");
428 CmdArgs.push_back(LDMOption);
429 } else {
430 D.Diag(diag::err_target_unknown_triple) << Triple.str();
431 return;
432 }
433
434 if (IsStatic) {
435 if (Arch == llvm::Triple::arm || Arch == llvm::Triple::armeb ||
436 Arch == llvm::Triple::thumb || Arch == llvm::Triple::thumbeb)
437 CmdArgs.push_back("-Bstatic");
438 else
439 CmdArgs.push_back("-static");
440 } else if (Args.hasArg(options::OPT_shared)) {
441 CmdArgs.push_back("-shared");
442 }
443
444 if (!IsStatic) {
445 if (Args.hasArg(options::OPT_rdynamic))
446 CmdArgs.push_back("-export-dynamic");
447
448 if (!Args.hasArg(options::OPT_shared) && !IsStaticPIE) {
449 const std::string Loader =
450 D.DyldPrefix + ToolChain.getDynamicLinker(Args);
451 CmdArgs.push_back("-dynamic-linker");
452 CmdArgs.push_back(Args.MakeArgString(Loader));
453 }
454 }
455
456 CmdArgs.push_back("-o");
457 CmdArgs.push_back(Output.getFilename());
458
459 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
460 if (!isAndroid && !IsIAMCU) {
461 const char *crt1 = nullptr;
462 if (!Args.hasArg(options::OPT_shared)) {
463 if (Args.hasArg(options::OPT_pg))
464 crt1 = "gcrt1.o";
465 else if (IsPIE)
466 crt1 = "Scrt1.o";
467 else if (IsStaticPIE)
468 crt1 = "rcrt1.o";
469 else
470 crt1 = "crt1.o";
471 }
472 if (crt1)
473 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crt1)));
474
475 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o")));
476 }
477
478 if (IsIAMCU)
479 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt0.o")));
480 else if (HasCRTBeginEndFiles) {
481 std::string P;
482 if (ToolChain.GetRuntimeLibType(Args) == ToolChain::RLT_CompilerRT &&
483 !isAndroid) {
484 std::string crtbegin = ToolChain.getCompilerRT(Args, "crtbegin",
485 ToolChain::FT_Object);
486 if (ToolChain.getVFS().exists(crtbegin))
487 P = crtbegin;
488 }
489 if (P.empty()) {
490 const char *crtbegin;
491 if (IsStatic)
492 crtbegin = isAndroid ? "crtbegin_static.o" : "crtbeginT.o";
493 else if (Args.hasArg(options::OPT_shared))
494 crtbegin = isAndroid ? "crtbegin_so.o" : "crtbeginS.o";
495 else if (IsPIE || IsStaticPIE)
496 crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbeginS.o";
497 else
498 crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbegin.o";
499 P = ToolChain.GetFilePath(crtbegin);
500 }
501 CmdArgs.push_back(Args.MakeArgString(P));
502 }
503
504 // Add crtfastmath.o if available and fast math is enabled.
505 ToolChain.AddFastMathRuntimeIfAvailable(Args, CmdArgs);
506 }
507
508 Args.AddAllArgs(CmdArgs, options::OPT_L);
509 Args.AddAllArgs(CmdArgs, options::OPT_u);
510
511 ToolChain.AddFilePathLibArgs(Args, CmdArgs);
512
513 if (D.isUsingLTO()) {
514 assert(!Inputs.empty() && "Must have at least one input.");
515 AddGoldPlugin(ToolChain, Args, CmdArgs, Output, Inputs[0],
516 D.getLTOMode() == LTOK_Thin);
517 }
518
519 if (Args.hasArg(options::OPT_Z_Xlinker__no_demangle))
520 CmdArgs.push_back("--no-demangle");
521
522 bool NeedsSanitizerDeps = addSanitizerRuntimes(ToolChain, Args, CmdArgs);
523 bool NeedsXRayDeps = addXRayRuntime(ToolChain, Args, CmdArgs);
524 AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA);
525 // The profile runtime also needs access to system libraries.
526 getToolChain().addProfileRTLibs(Args, CmdArgs);
527
528 if (D.CCCIsCXX() &&
529 !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
530 if (ToolChain.ShouldLinkCXXStdlib(Args)) {
531 bool OnlyLibstdcxxStatic = Args.hasArg(options::OPT_static_libstdcxx) &&
532 !Args.hasArg(options::OPT_static);
533 if (OnlyLibstdcxxStatic)
534 CmdArgs.push_back("-Bstatic");
535 ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs);
536 if (OnlyLibstdcxxStatic)
537 CmdArgs.push_back("-Bdynamic");
538 }
539 CmdArgs.push_back("-lm");
540 }
541 // Silence warnings when linking C code with a C++ '-stdlib' argument.
542 Args.ClaimAllArgs(options::OPT_stdlib_EQ);
543
544 if (!Args.hasArg(options::OPT_nostdlib)) {
545 if (!Args.hasArg(options::OPT_nodefaultlibs)) {
546 if (IsStatic || IsStaticPIE)
547 CmdArgs.push_back("--start-group");
548
549 if (NeedsSanitizerDeps)
550 linkSanitizerRuntimeDeps(ToolChain, CmdArgs);
551
552 if (NeedsXRayDeps)
553 linkXRayRuntimeDeps(ToolChain, CmdArgs);
554
555 bool WantPthread = Args.hasArg(options::OPT_pthread) ||
556 Args.hasArg(options::OPT_pthreads);
557
558 // Use the static OpenMP runtime with -static-openmp
559 bool StaticOpenMP = Args.hasArg(options::OPT_static_openmp) &&
560 !Args.hasArg(options::OPT_static);
561
562 // FIXME: Only pass GompNeedsRT = true for platforms with libgomp that
563 // require librt. Most modern Linux platforms do, but some may not.
564 if (addOpenMPRuntime(CmdArgs, ToolChain, Args, StaticOpenMP,
565 JA.isHostOffloading(Action::OFK_OpenMP),
566 /* GompNeedsRT= */ true))
567 // OpenMP runtimes implies pthreads when using the GNU toolchain.
568 // FIXME: Does this really make sense for all GNU toolchains?
569 WantPthread = true;
570
571 AddRunTimeLibs(ToolChain, D, CmdArgs, Args);
572
573 if (WantPthread && !isAndroid)
574 CmdArgs.push_back("-lpthread");
575
576 if (Args.hasArg(options::OPT_fsplit_stack))
577 CmdArgs.push_back("--wrap=pthread_create");
578
579 if (!Args.hasArg(options::OPT_nolibc))
580 CmdArgs.push_back("-lc");
581
582 // Add IAMCU specific libs, if needed.
583 if (IsIAMCU)
584 CmdArgs.push_back("-lgloss");
585
586 if (IsStatic || IsStaticPIE)
587 CmdArgs.push_back("--end-group");
588 else
589 AddRunTimeLibs(ToolChain, D, CmdArgs, Args);
590
591 // Add IAMCU specific libs (outside the group), if needed.
592 if (IsIAMCU) {
593 CmdArgs.push_back("--as-needed");
594 CmdArgs.push_back("-lsoftfp");
595 CmdArgs.push_back("--no-as-needed");
596 }
597 }
598
599 if (!Args.hasArg(options::OPT_nostartfiles) && !IsIAMCU) {
600 if (HasCRTBeginEndFiles) {
601 std::string P;
602 if (ToolChain.GetRuntimeLibType(Args) == ToolChain::RLT_CompilerRT &&
603 !isAndroid) {
604 std::string crtend = ToolChain.getCompilerRT(Args, "crtend",
605 ToolChain::FT_Object);
606 if (ToolChain.getVFS().exists(crtend))
607 P = crtend;
608 }
609 if (P.empty()) {
610 const char *crtend;
611 if (Args.hasArg(options::OPT_shared))
612 crtend = isAndroid ? "crtend_so.o" : "crtendS.o";
613 else if (IsPIE || IsStaticPIE)
614 crtend = isAndroid ? "crtend_android.o" : "crtendS.o";
615 else
616 crtend = isAndroid ? "crtend_android.o" : "crtend.o";
617 P = ToolChain.GetFilePath(crtend);
618 }
619 CmdArgs.push_back(Args.MakeArgString(P));
620 }
621 if (!isAndroid)
622 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o")));
623 }
624 }
625
626 // Add HIP offloading linker script args if required.
627 AddHIPLinkerScript(getToolChain(), C, Output, Inputs, Args, CmdArgs, JA,
628 *this);
629
630 const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath());
631 C.addCommand(std::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
632 }
633
634 void tools::gnutools::Assembler::ConstructJob(Compilation &C,
635 const JobAction &JA,
636 const InputInfo &Output,
637 const InputInfoList &Inputs,
638 const ArgList &Args,
639 const char *LinkingOutput) const {
640 const auto &D = getToolChain().getDriver();
641
642 claimNoWarnArgs(Args);
643
644 ArgStringList CmdArgs;
645
646 llvm::Reloc::Model RelocationModel;
647 unsigned PICLevel;
648 bool IsPIE;
649 std::tie(RelocationModel, PICLevel, IsPIE) =
650 ParsePICArgs(getToolChain(), Args);
651
652 if (const Arg *A = Args.getLastArg(options::OPT_gz, options::OPT_gz_EQ)) {
653 if (A->getOption().getID() == options::OPT_gz) {
654 CmdArgs.push_back("--compress-debug-sections");
655 } else {
656 StringRef Value = A->getValue();
657 if (Value == "none" || Value == "zlib" || Value == "zlib-gnu") {
658 CmdArgs.push_back(
659 Args.MakeArgString("--compress-debug-sections=" + Twine(Value)));
660 } else {
661 D.Diag(diag::err_drv_unsupported_option_argument)
662 << A->getOption().getName() << Value;
663 }
664 }
665 }
666
667 if (getToolChain().isNoExecStackDefault()) {
668 CmdArgs.push_back("--noexecstack");
669 }
670
671 switch (getToolChain().getArch()) {
672 default:
673 break;
674 // Add --32/--64 to make sure we get the format we want.
675 // This is incomplete
676 case llvm::Triple::x86:
677 CmdArgs.push_back("--32");
678 break;
679 case llvm::Triple::x86_64:
680 if (getToolChain().getTriple().getEnvironment() == llvm::Triple::GNUX32)
681 CmdArgs.push_back("--x32");
682 else
683 CmdArgs.push_back("--64");
684 break;
685 case llvm::Triple::ppc: {
686 CmdArgs.push_back("-a32");
687 CmdArgs.push_back("-mppc");
688 CmdArgs.push_back(
689 ppc::getPPCAsmModeForCPU(getCPUName(Args, getToolChain().getTriple())));
690 break;
691 }
692 case llvm::Triple::ppc64: {
693 CmdArgs.push_back("-a64");
694 CmdArgs.push_back("-mppc64");
695 CmdArgs.push_back(
696 ppc::getPPCAsmModeForCPU(getCPUName(Args, getToolChain().getTriple())));
697 break;
698 }
699 case llvm::Triple::ppc64le: {
700 CmdArgs.push_back("-a64");
701 CmdArgs.push_back("-mppc64");
702 CmdArgs.push_back("-mlittle-endian");
703 CmdArgs.push_back(
704 ppc::getPPCAsmModeForCPU(getCPUName(Args, getToolChain().getTriple())));
705 break;
706 }
707 case llvm::Triple::riscv32:
708 case llvm::Triple::riscv64: {
709 StringRef ABIName = riscv::getRISCVABI(Args, getToolChain().getTriple());
710 CmdArgs.push_back("-mabi");
711 CmdArgs.push_back(ABIName.data());
712 StringRef MArchName = riscv::getRISCVArch(Args, getToolChain().getTriple());
713 CmdArgs.push_back("-march");
714 CmdArgs.push_back(MArchName.data());
715 break;
716 }
717 case llvm::Triple::sparc:
718 case llvm::Triple::sparcel: {
719 CmdArgs.push_back("-32");
720 std::string CPU = getCPUName(Args, getToolChain().getTriple());
721 CmdArgs.push_back(
722 sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple()));
723 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
724 break;
725 }
726 case llvm::Triple::sparcv9: {
727 CmdArgs.push_back("-64");
728 std::string CPU = getCPUName(Args, getToolChain().getTriple());
729 CmdArgs.push_back(
730 sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple()));
731 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
732 break;
733 }
734 case llvm::Triple::arm:
735 case llvm::Triple::armeb:
736 case llvm::Triple::thumb:
737 case llvm::Triple::thumbeb: {
738 const llvm::Triple &Triple2 = getToolChain().getTriple();
739 CmdArgs.push_back(isArmBigEndian(Triple2, Args) ? "-EB" : "-EL");
740 switch (Triple2.getSubArch()) {
741 case llvm::Triple::ARMSubArch_v7:
742 CmdArgs.push_back("-mfpu=neon");
743 break;
744 case llvm::Triple::ARMSubArch_v8:
745 CmdArgs.push_back("-mfpu=crypto-neon-fp-armv8");
746 break;
747 default:
748 break;
749 }
750
751 switch (arm::getARMFloatABI(getToolChain(), Args)) {
752 case arm::FloatABI::Invalid: llvm_unreachable("must have an ABI!");
753 case arm::FloatABI::Soft:
754 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=soft"));
755 break;
756 case arm::FloatABI::SoftFP:
757 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=softfp"));
758 break;
759 case arm::FloatABI::Hard:
760 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=hard"));
761 break;
762 }
763
764 Args.AddLastArg(CmdArgs, options::OPT_march_EQ);
765 normalizeCPUNamesForAssembler(Args, CmdArgs);
766
767 Args.AddLastArg(CmdArgs, options::OPT_mfpu_EQ);
768 break;
769 }
770 case llvm::Triple::aarch64:
771 case llvm::Triple::aarch64_be: {
772 CmdArgs.push_back(
773 getToolChain().getArch() == llvm::Triple::aarch64_be ? "-EB" : "-EL");
774 Args.AddLastArg(CmdArgs, options::OPT_march_EQ);
775 normalizeCPUNamesForAssembler(Args, CmdArgs);
776
777 break;
778 }
779 case llvm::Triple::mips:
780 case llvm::Triple::mipsel:
781 case llvm::Triple::mips64:
782 case llvm::Triple::mips64el: {
783 StringRef CPUName;
784 StringRef ABIName;
785 mips::getMipsCPUAndABI(Args, getToolChain().getTriple(), CPUName, ABIName);
786 ABIName = mips::getGnuCompatibleMipsABIName(ABIName);
787
788 CmdArgs.push_back("-march");
789 CmdArgs.push_back(CPUName.data());
790
791 CmdArgs.push_back("-mabi");
792 CmdArgs.push_back(ABIName.data());
793
794 // -mno-shared should be emitted unless -fpic, -fpie, -fPIC, -fPIE,
795 // or -mshared (not implemented) is in effect.
796 if (RelocationModel == llvm::Reloc::Static)
797 CmdArgs.push_back("-mno-shared");
798
799 // LLVM doesn't support -mplt yet and acts as if it is always given.
800 // However, -mplt has no effect with the N64 ABI.
801 if (ABIName != "64" && !Args.hasArg(options::OPT_mno_abicalls))
802 CmdArgs.push_back("-call_nonpic");
803
804 if (getToolChain().getTriple().isLittleEndian())
805 CmdArgs.push_back("-EL");
806 else
807 CmdArgs.push_back("-EB");
808
809 if (Arg *A = Args.getLastArg(options::OPT_mnan_EQ)) {
810 if (StringRef(A->getValue()) == "2008")
811 CmdArgs.push_back(Args.MakeArgString("-mnan=2008"));
812 }
813
814 // Add the last -mfp32/-mfpxx/-mfp64 or -mfpxx if it is enabled by default.
815 if (Arg *A = Args.getLastArg(options::OPT_mfp32, options::OPT_mfpxx,
816 options::OPT_mfp64)) {
817 A->claim();
818 A->render(Args, CmdArgs);
819 } else if (mips::shouldUseFPXX(
820 Args, getToolChain().getTriple(), CPUName, ABIName,
821 mips::getMipsFloatABI(getToolChain().getDriver(), Args,
822 getToolChain().getTriple())))
823 CmdArgs.push_back("-mfpxx");
824
825 // Pass on -mmips16 or -mno-mips16. However, the assembler equivalent of
826 // -mno-mips16 is actually -no-mips16.
827 if (Arg *A =
828 Args.getLastArg(options::OPT_mips16, options::OPT_mno_mips16)) {
829 if (A->getOption().matches(options::OPT_mips16)) {
830 A->claim();
831 A->render(Args, CmdArgs);
832 } else {
833 A->claim();
834 CmdArgs.push_back("-no-mips16");
835 }
836 }
837
838 Args.AddLastArg(CmdArgs, options::OPT_mmicromips,
839 options::OPT_mno_micromips);
840 Args.AddLastArg(CmdArgs, options::OPT_mdsp, options::OPT_mno_dsp);
841 Args.AddLastArg(CmdArgs, options::OPT_mdspr2, options::OPT_mno_dspr2);
842
843 if (Arg *A = Args.getLastArg(options::OPT_mmsa, options::OPT_mno_msa)) {
844 // Do not use AddLastArg because not all versions of MIPS assembler
845 // support -mmsa / -mno-msa options.
846 if (A->getOption().matches(options::OPT_mmsa))
847 CmdArgs.push_back(Args.MakeArgString("-mmsa"));
848 }
849
850 Args.AddLastArg(CmdArgs, options::OPT_mhard_float,
851 options::OPT_msoft_float);
852
853 Args.AddLastArg(CmdArgs, options::OPT_mdouble_float,
854 options::OPT_msingle_float);
855
856 Args.AddLastArg(CmdArgs, options::OPT_modd_spreg,
857 options::OPT_mno_odd_spreg);
858
859 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
860 break;
861 }
862 case llvm::Triple::systemz: {
863 // Always pass an -march option, since our default of z10 is later
864 // than the GNU assembler's default.
865 std::string CPUName = systemz::getSystemZTargetCPU(Args);
866 CmdArgs.push_back(Args.MakeArgString("-march=" + CPUName));
867 break;
868 }
869 }
870
871 for (const Arg *A : Args.filtered(options::OPT_ffile_prefix_map_EQ,
872 options::OPT_fdebug_prefix_map_EQ)) {
873 StringRef Map = A->getValue();
874 if (Map.find('=') == StringRef::npos)
875 D.Diag(diag::err_drv_invalid_argument_to_option)
876 << Map << A->getOption().getName();
877 else {
878 CmdArgs.push_back(Args.MakeArgString("--debug-prefix-map"));
879 CmdArgs.push_back(Args.MakeArgString(Map));
880 }
881 A->claim();
882 }
883
884 Args.AddAllArgs(CmdArgs, options::OPT_I);
885 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
886
887 CmdArgs.push_back("-o");
888 CmdArgs.push_back(Output.getFilename());
889
890 for (const auto &II : Inputs)
891 CmdArgs.push_back(II.getFilename());
892
893 const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as"));
894 C.addCommand(std::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
895
896 // Handle the debug info splitting at object creation time if we're
897 // creating an object.
898 // TODO: Currently only works on linux with newer objcopy.
899 if (Args.hasArg(options::OPT_gsplit_dwarf) &&
900 getToolChain().getTriple().isOSLinux())
901 SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output,
902 SplitDebugName(Args, Inputs[0], Output));
903 }
904
905 namespace {
906 // Filter to remove Multilibs that don't exist as a suffix to Path
907 class FilterNonExistent {
908 StringRef Base, File;
909 llvm::vfs::FileSystem &VFS;
910
911 public:
912 FilterNonExistent(StringRef Base, StringRef File, llvm::vfs::FileSystem &VFS)
913 : Base(Base), File(File), VFS(VFS) {}
914 bool operator()(const Multilib &M) {
915 return !VFS.exists(Base + M.gccSuffix() + File);
916 }
917 };
918 } // end anonymous namespace
919
920 static bool isSoftFloatABI(const ArgList &Args) {
921 Arg *A = Args.getLastArg(options::OPT_msoft_float, options::OPT_mhard_float,
922 options::OPT_mfloat_abi_EQ);
923 if (!A)
924 return false;
925
926 return A->getOption().matches(options::OPT_msoft_float) ||
927 (A->getOption().matches(options::OPT_mfloat_abi_EQ) &&
928 A->getValue() == StringRef("soft"));
929 }
930
931 static bool isArmOrThumbArch(llvm::Triple::ArchType Arch) {
932 return Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb;
933 }
934
935 static bool isMipsEL(llvm::Triple::ArchType Arch) {
936 return Arch == llvm::Triple::mipsel || Arch == llvm::Triple::mips64el;
937 }
938
939 static bool isMips16(const ArgList &Args) {
940 Arg *A = Args.getLastArg(options::OPT_mips16, options::OPT_mno_mips16);
941 return A && A->getOption().matches(options::OPT_mips16);
942 }
943
944 static bool isMicroMips(const ArgList &Args) {
945 Arg *A = Args.getLastArg(options::OPT_mmicromips, options::OPT_mno_micromips);
946 return A && A->getOption().matches(options::OPT_mmicromips);
947 }
948
949 static bool isMSP430(llvm::Triple::ArchType Arch) {
950 return Arch == llvm::Triple::msp430;
951 }
952
953 static Multilib makeMultilib(StringRef commonSuffix) {
954 return Multilib(commonSuffix, commonSuffix, commonSuffix);
955 }
956
957 static bool findMipsCsMultilibs(const Multilib::flags_list &Flags,
958 FilterNonExistent &NonExistent,
959 DetectedMultilibs &Result) {
960 // Check for Code Sourcery toolchain multilibs
961 MultilibSet CSMipsMultilibs;
962 {
963 auto MArchMips16 = makeMultilib("/mips16").flag("+m32").flag("+mips16");
964
965 auto MArchMicroMips =
966 makeMultilib("/micromips").flag("+m32").flag("+mmicromips");
967
968 auto MArchDefault = makeMultilib("").flag("-mips16").flag("-mmicromips");
969
970 auto UCLibc = makeMultilib("/uclibc").flag("+muclibc");
971
972 auto SoftFloat = makeMultilib("/soft-float").flag("+msoft-float");
973
974 auto Nan2008 = makeMultilib("/nan2008").flag("+mnan=2008");
975
976 auto DefaultFloat =
977 makeMultilib("").flag("-msoft-float").flag("-mnan=2008");
978
979 auto BigEndian = makeMultilib("").flag("+EB").flag("-EL");
980
981 auto LittleEndian = makeMultilib("/el").flag("+EL").flag("-EB");
982
983 // Note that this one's osSuffix is ""
984 auto MAbi64 = makeMultilib("")
985 .gccSuffix("/64")
986 .includeSuffix("/64")
987 .flag("+mabi=n64")
988 .flag("-mabi=n32")
989 .flag("-m32");
990
991 CSMipsMultilibs =
992 MultilibSet()
993 .Either(MArchMips16, MArchMicroMips, MArchDefault)
994 .Maybe(UCLibc)
995 .Either(SoftFloat, Nan2008, DefaultFloat)
996 .FilterOut("/micromips/nan2008")
997 .FilterOut("/mips16/nan2008")
998 .Either(BigEndian, LittleEndian)
999 .Maybe(MAbi64)
1000 .FilterOut("/mips16.*/64")
1001 .FilterOut("/micromips.*/64")
1002 .FilterOut(NonExistent)
1003 .setIncludeDirsCallback([](const Multilib &M) {
1004 std::vector<std::string> Dirs({"/include"});
1005 if (StringRef(M.includeSuffix()).startswith("/uclibc"))
1006 Dirs.push_back(
1007 "/../../../../mips-linux-gnu/libc/uclibc/usr/include");
1008 else
1009 Dirs.push_back("/../../../../mips-linux-gnu/libc/usr/include");
1010 return Dirs;
1011 });
1012 }
1013
1014 MultilibSet DebianMipsMultilibs;
1015 {
1016 Multilib MAbiN32 =
1017 Multilib().gccSuffix("/n32").includeSuffix("/n32").flag("+mabi=n32");
1018
1019 Multilib M64 = Multilib()
1020 .gccSuffix("/64")
1021 .includeSuffix("/64")
1022 .flag("+m64")
1023 .flag("-m32")
1024 .flag("-mabi=n32");
1025
1026 Multilib M32 = Multilib().flag("-m64").flag("+m32").flag("-mabi=n32");
1027
1028 DebianMipsMultilibs =
1029 MultilibSet().Either(M32, M64, MAbiN32).FilterOut(NonExistent);
1030 }
1031
1032 // Sort candidates. Toolchain that best meets the directories tree goes first.
1033 // Then select the first toolchains matches command line flags.
1034 MultilibSet *Candidates[] = {&CSMipsMultilibs, &DebianMipsMultilibs};
1035 if (CSMipsMultilibs.size() < DebianMipsMultilibs.size())
1036 std::iter_swap(Candidates, Candidates + 1);
1037 for (const MultilibSet *Candidate : Candidates) {
1038 if (Candidate->select(Flags, Result.SelectedMultilib)) {
1039 if (Candidate == &DebianMipsMultilibs)
1040 Result.BiarchSibling = Multilib();
1041 Result.Multilibs = *Candidate;
1042 return true;
1043 }
1044 }
1045 return false;
1046 }
1047
1048 static bool findMipsAndroidMultilibs(llvm::vfs::FileSystem &VFS, StringRef Path,
1049 const Multilib::flags_list &Flags,
1050 FilterNonExistent &NonExistent,
1051 DetectedMultilibs &Result) {
1052
1053 MultilibSet AndroidMipsMultilibs =
1054 MultilibSet()
1055 .Maybe(Multilib("/mips-r2").flag("+march=mips32r2"))
1056 .Maybe(Multilib("/mips-r6").flag("+march=mips32r6"))
1057 .FilterOut(NonExistent);
1058
1059 MultilibSet AndroidMipselMultilibs =
1060 MultilibSet()
1061 .Either(Multilib().flag("+march=mips32"),
1062 Multilib("/mips-r2", "", "/mips-r2").flag("+march=mips32r2"),
1063 Multilib("/mips-r6", "", "/mips-r6").flag("+march=mips32r6"))
1064 .FilterOut(NonExistent);
1065
1066 MultilibSet AndroidMips64elMultilibs =
1067 MultilibSet()
1068 .Either(
1069 Multilib().flag("+march=mips64r6"),
1070 Multilib("/32/mips-r1", "", "/mips-r1").flag("+march=mips32"),
1071 Multilib("/32/mips-r2", "", "/mips-r2").flag("+march=mips32r2"),
1072 Multilib("/32/mips-r6", "", "/mips-r6").flag("+march=mips32r6"))
1073 .FilterOut(NonExistent);
1074
1075 MultilibSet *MS = &AndroidMipsMultilibs;
1076 if (VFS.exists(Path + "/mips-r6"))
1077 MS = &AndroidMipselMultilibs;
1078 else if (VFS.exists(Path + "/32"))
1079 MS = &AndroidMips64elMultilibs;
1080 if (MS->select(Flags, Result.SelectedMultilib)) {
1081 Result.Multilibs = *MS;
1082 return true;
1083 }
1084 return false;
1085 }
1086
1087 static bool findMipsMuslMultilibs(const Multilib::flags_list &Flags,
1088 FilterNonExistent &NonExistent,
1089 DetectedMultilibs &Result) {
1090 // Musl toolchain multilibs
1091 MultilibSet MuslMipsMultilibs;
1092 {
1093 auto MArchMipsR2 = makeMultilib("")
1094 .osSuffix("/mips-r2-hard-musl")
1095 .flag("+EB")
1096 .flag("-EL")
1097 .flag("+march=mips32r2");
1098
1099 auto MArchMipselR2 = makeMultilib("/mipsel-r2-hard-musl")
1100 .flag("-EB")
1101 .flag("+EL")
1102 .flag("+march=mips32r2");
1103
1104 MuslMipsMultilibs = MultilibSet().Either(MArchMipsR2, MArchMipselR2);
1105
1106 // Specify the callback that computes the include directories.
1107 MuslMipsMultilibs.setIncludeDirsCallback([](const Multilib &M) {
1108 return std::vector<std::string>(
1109 {"/../sysroot" + M.osSuffix() + "/usr/include"});
1110 });
1111 }
1112 if (MuslMipsMultilibs.select(Flags, Result.SelectedMultilib)) {
1113 Result.Multilibs = MuslMipsMultilibs;
1114 return true;
1115 }
1116 return false;
1117 }
1118
1119 static bool findMipsMtiMultilibs(const Multilib::flags_list &Flags,
1120 FilterNonExistent &NonExistent,
1121 DetectedMultilibs &Result) {
1122 // CodeScape MTI toolchain v1.2 and early.
1123 MultilibSet MtiMipsMultilibsV1;
1124 {
1125 auto MArchMips32 = makeMultilib("/mips32")
1126 .flag("+m32")
1127 .flag("-m64")
1128 .flag("-mmicromips")
1129 .flag("+march=mips32");
1130
1131 auto MArchMicroMips = makeMultilib("/micromips")
1132 .flag("+m32")
1133 .flag("-m64")
1134 .flag("+mmicromips");
1135
1136 auto MArchMips64r2 = makeMultilib("/mips64r2")
1137 .flag("-m32")
1138 .flag("+m64")
1139 .flag("+march=mips64r2");
1140
1141 auto MArchMips64 = makeMultilib("/mips64").flag("-m32").flag("+m64").flag(
1142 "-march=mips64r2");
1143
1144 auto MArchDefault = makeMultilib("")
1145 .flag("+m32")
1146 .flag("-m64")
1147 .flag("-mmicromips")
1148 .flag("+march=mips32r2");
1149
1150 auto Mips16 = makeMultilib("/mips16").flag("+mips16");
1151
1152 auto UCLibc = makeMultilib("/uclibc").flag("+muclibc");
1153
1154 auto MAbi64 =
1155 makeMultilib("/64").flag("+mabi=n64").flag("-mabi=n32").flag("-m32");
1156
1157 auto BigEndian = makeMultilib("").flag("+EB").flag("-EL");
1158
1159 auto LittleEndian = makeMultilib("/el").flag("+EL").flag("-EB");
1160
1161 auto SoftFloat = makeMultilib("/sof").flag("+msoft-float");
1162
1163 auto Nan2008 = makeMultilib("/nan2008").flag("+mnan=2008");
1164
1165 MtiMipsMultilibsV1 =
1166 MultilibSet()
1167 .Either(MArchMips32, MArchMicroMips, MArchMips64r2, MArchMips64,
1168 MArchDefault)
1169 .Maybe(UCLibc)
1170 .Maybe(Mips16)
1171 .FilterOut("/mips64/mips16")
1172 .FilterOut("/mips64r2/mips16")
1173 .FilterOut("/micromips/mips16")
1174 .Maybe(MAbi64)
1175 .FilterOut("/micromips/64")
1176 .FilterOut("/mips32/64")
1177 .FilterOut("^/64")
1178 .FilterOut("/mips16/64")
1179 .Either(BigEndian, LittleEndian)
1180 .Maybe(SoftFloat)
1181 .Maybe(Nan2008)
1182 .FilterOut(".*sof/nan2008")
1183 .FilterOut(NonExistent)
1184 .setIncludeDirsCallback([](const Multilib &M) {
1185 std::vector<std::string> Dirs({"/include"});
1186 if (StringRef(M.includeSuffix()).startswith("/uclibc"))
1187 Dirs.push_back("/../../../../sysroot/uclibc/usr/include");
1188 else
1189 Dirs.push_back("/../../../../sysroot/usr/include");
1190 return Dirs;
1191 });
1192 }
1193
1194 // CodeScape IMG toolchain starting from v1.3.
1195 MultilibSet MtiMipsMultilibsV2;
1196 {
1197 auto BeHard = makeMultilib("/mips-r2-hard")
1198 .flag("+EB")
1199 .flag("-msoft-float")
1200 .flag("-mnan=2008")
1201 .flag("-muclibc");
1202 auto BeSoft = makeMultilib("/mips-r2-soft")
1203 .flag("+EB")
1204 .flag("+msoft-float")
1205 .flag("-mnan=2008");
1206 auto ElHard = makeMultilib("/mipsel-r2-hard")
1207 .flag("+EL")
1208 .flag("-msoft-float")
1209 .flag("-mnan=2008")
1210 .flag("-muclibc");
1211 auto ElSoft = makeMultilib("/mipsel-r2-soft")
1212 .flag("+EL")
1213 .flag("+msoft-float")
1214 .flag("-mnan=2008")
1215 .flag("-mmicromips");
1216 auto BeHardNan = makeMultilib("/mips-r2-hard-nan2008")
1217 .flag("+EB")
1218 .flag("-msoft-float")
1219 .flag("+mnan=2008")
1220 .flag("-muclibc");
1221 auto ElHardNan = makeMultilib("/mipsel-r2-hard-nan2008")
1222 .flag("+EL")
1223 .flag("-msoft-float")
1224 .flag("+mnan=2008")
1225 .flag("-muclibc")
1226 .flag("-mmicromips");
1227 auto BeHardNanUclibc = makeMultilib("/mips-r2-hard-nan2008-uclibc")
1228 .flag("+EB")
1229 .flag("-msoft-float")
1230 .flag("+mnan=2008")
1231 .flag("+muclibc");
1232 auto ElHardNanUclibc = makeMultilib("/mipsel-r2-hard-nan2008-uclibc")
1233 .flag("+EL")
1234 .flag("-msoft-float")
1235 .flag("+mnan=2008")
1236 .flag("+muclibc");
1237 auto BeHardUclibc = makeMultilib("/mips-r2-hard-uclibc")
1238 .flag("+EB")
1239 .flag("-msoft-float")
1240 .flag("-mnan=2008")
1241 .flag("+muclibc");
1242 auto ElHardUclibc = makeMultilib("/mipsel-r2-hard-uclibc")
1243 .flag("+EL")
1244 .flag("-msoft-float")
1245 .flag("-mnan=2008")
1246 .flag("+muclibc");
1247 auto ElMicroHardNan = makeMultilib("/micromipsel-r2-hard-nan2008")
1248 .flag("+EL")
1249 .flag("-msoft-float")
1250 .flag("+mnan=2008")
1251 .flag("+mmicromips");
1252 auto ElMicroSoft = makeMultilib("/micromipsel-r2-soft")
1253 .flag("+EL")
1254 .flag("+msoft-float")
1255 .flag("-mnan=2008")
1256 .flag("+mmicromips");
1257
1258 auto O32 =
1259 makeMultilib("/lib").osSuffix("").flag("-mabi=n32").flag("-mabi=n64");
1260 auto N32 =
1261 makeMultilib("/lib32").osSuffix("").flag("+mabi=n32").flag("-mabi=n64");
1262 auto N64 =
1263 makeMultilib("/lib64").osSuffix("").flag("-mabi=n32").flag("+mabi=n64");
1264
1265 MtiMipsMultilibsV2 =
1266 MultilibSet()
1267 .Either({BeHard, BeSoft, ElHard, ElSoft, BeHardNan, ElHardNan,
1268 BeHardNanUclibc, ElHardNanUclibc, BeHardUclibc,
1269 ElHardUclibc, ElMicroHardNan, ElMicroSoft})
1270 .Either(O32, N32, N64)
1271 .FilterOut(NonExistent)
1272 .setIncludeDirsCallback([](const Multilib &M) {
1273 return std::vector<std::string>({"/../../../../sysroot" +
1274 M.includeSuffix() +
1275 "/../usr/include"});
1276 })
1277 .setFilePathsCallback([](const Multilib &M) {
1278 return std::vector<std::string>(
1279 {"/../../../../mips-mti-linux-gnu/lib" + M.gccSuffix()});
1280 });
1281 }
1282 for (auto Candidate : {&MtiMipsMultilibsV1, &MtiMipsMultilibsV2}) {
1283 if (Candidate->select(Flags, Result.SelectedMultilib)) {
1284 Result.Multilibs = *Candidate;
1285 return true;
1286 }
1287 }
1288 return false;
1289 }
1290
1291 static bool findMipsImgMultilibs(const Multilib::flags_list &Flags,
1292 FilterNonExistent &NonExistent,
1293 DetectedMultilibs &Result) {
1294 // CodeScape IMG toolchain v1.2 and early.
1295 MultilibSet ImgMultilibsV1;
1296 {
1297 auto Mips64r6 = makeMultilib("/mips64r6").flag("+m64").flag("-m32");
1298
1299 auto LittleEndian = makeMultilib("/el").flag("+EL").flag("-EB");
1300
1301 auto MAbi64 =
1302 makeMultilib("/64").flag("+mabi=n64").flag("-mabi=n32").flag("-m32");
1303
1304 ImgMultilibsV1 =
1305 MultilibSet()
1306 .Maybe(Mips64r6)
1307 .Maybe(MAbi64)
1308 .Maybe(LittleEndian)
1309 .FilterOut(NonExistent)
1310 .setIncludeDirsCallback([](const Multilib &M) {
1311 return std::vector<std::string>(
1312 {"/include", "/../../../../sysroot/usr/include"});
1313 });
1314 }
1315
1316 // CodeScape IMG toolchain starting from v1.3.
1317 MultilibSet ImgMultilibsV2;
1318 {
1319 auto BeHard = makeMultilib("/mips-r6-hard")
1320 .flag("+EB")
1321 .flag("-msoft-float")
1322 .flag("-mmicromips");
1323 auto BeSoft = makeMultilib("/mips-r6-soft")
1324 .flag("+EB")
1325 .flag("+msoft-float")
1326 .flag("-mmicromips");
1327 auto ElHard = makeMultilib("/mipsel-r6-hard")
1328 .flag("+EL")
1329 .flag("-msoft-float")
1330 .flag("-mmicromips");
1331 auto ElSoft = makeMultilib("/mipsel-r6-soft")
1332 .flag("+EL")
1333 .flag("+msoft-float")
1334 .flag("-mmicromips");
1335 auto BeMicroHard = makeMultilib("/micromips-r6-hard")
1336 .flag("+EB")
1337 .flag("-msoft-float")
1338 .flag("+mmicromips");
1339 auto BeMicroSoft = makeMultilib("/micromips-r6-soft")
1340 .flag("+EB")
1341 .flag("+msoft-float")
1342 .flag("+mmicromips");
1343 auto ElMicroHard = makeMultilib("/micromipsel-r6-hard")
1344 .flag("+EL")
1345 .flag("-msoft-float")
1346 .flag("+mmicromips");
1347 auto ElMicroSoft = makeMultilib("/micromipsel-r6-soft")
1348 .flag("+EL")
1349 .flag("+msoft-float")
1350 .flag("+mmicromips");
1351
1352 auto O32 =
1353 makeMultilib("/lib").osSuffix("").flag("-mabi=n32").flag("-mabi=n64");
1354 auto N32 =
1355 makeMultilib("/lib32").osSuffix("").flag("+mabi=n32").flag("-mabi=n64");
1356 auto N64 =
1357 makeMultilib("/lib64").osSuffix("").flag("-mabi=n32").flag("+mabi=n64");
1358
1359 ImgMultilibsV2 =
1360 MultilibSet()
1361 .Either({BeHard, BeSoft, ElHard, ElSoft, BeMicroHard, BeMicroSoft,
1362 ElMicroHard, ElMicroSoft})
1363 .Either(O32, N32, N64)
1364 .FilterOut(NonExistent)
1365 .setIncludeDirsCallback([](const Multilib &M) {
1366 return std::vector<std::string>({"/../../../../sysroot" +
1367 M.includeSuffix() +
1368 "/../usr/include"});
1369 })
1370 .setFilePathsCallback([](const Multilib &M) {
1371 return std::vector<std::string>(
1372 {"/../../../../mips-img-linux-gnu/lib" + M.gccSuffix()});
1373 });
1374 }
1375 for (auto Candidate : {&ImgMultilibsV1, &ImgMultilibsV2}) {
1376 if (Candidate->select(Flags, Result.SelectedMultilib)) {
1377 Result.Multilibs = *Candidate;
1378 return true;
1379 }
1380 }
1381 return false;
1382 }
1383
1384 bool clang::driver::findMIPSMultilibs(const Driver &D,
1385 const llvm::Triple &TargetTriple,
1386 StringRef Path, const ArgList &Args,
1387 DetectedMultilibs &Result) {
1388 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1389
1390 StringRef CPUName;
1391 StringRef ABIName;
1392 tools::mips::getMipsCPUAndABI(Args, TargetTriple, CPUName, ABIName);
1393
1394 llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
1395
1396 Multilib::flags_list Flags;
1397 addMultilibFlag(TargetTriple.isMIPS32(), "m32", Flags);
1398 addMultilibFlag(TargetTriple.isMIPS64(), "m64", Flags);
1399 addMultilibFlag(isMips16(Args), "mips16", Flags);
1400 addMultilibFlag(CPUName == "mips32", "march=mips32", Flags);
1401 addMultilibFlag(CPUName == "mips32r2" || CPUName == "mips32r3" ||
1402 CPUName == "mips32r5" || CPUName == "p5600",
1403 "march=mips32r2", Flags);
1404 addMultilibFlag(CPUName == "mips32r6", "march=mips32r6", Flags);
1405 addMultilibFlag(CPUName == "mips64", "march=mips64", Flags);
1406 addMultilibFlag(CPUName == "mips64r2" || CPUName == "mips64r3" ||
1407 CPUName == "mips64r5" || CPUName == "octeon" ||
1408 CPUName == "octeon+",
1409 "march=mips64r2", Flags);
1410 addMultilibFlag(CPUName == "mips64r6", "march=mips64r6", Flags);
1411 addMultilibFlag(isMicroMips(Args), "mmicromips", Flags);
1412 addMultilibFlag(tools::mips::isUCLibc(Args), "muclibc", Flags);
1413 addMultilibFlag(tools::mips::isNaN2008(Args, TargetTriple), "mnan=2008",
1414 Flags);
1415 addMultilibFlag(ABIName == "n32", "mabi=n32", Flags);
1416 addMultilibFlag(ABIName == "n64", "mabi=n64", Flags);
1417 addMultilibFlag(isSoftFloatABI(Args), "msoft-float", Flags);
1418 addMultilibFlag(!isSoftFloatABI(Args), "mhard-float", Flags);
1419 addMultilibFlag(isMipsEL(TargetArch), "EL", Flags);
1420 addMultilibFlag(!isMipsEL(TargetArch), "EB", Flags);
1421
1422 if (TargetTriple.isAndroid())
1423 return findMipsAndroidMultilibs(D.getVFS(), Path, Flags, NonExistent,
1424 Result);
1425
1426 if (TargetTriple.getVendor() == llvm::Triple::MipsTechnologies &&
1427 TargetTriple.getOS() == llvm::Triple::Linux &&
1428 TargetTriple.getEnvironment() == llvm::Triple::UnknownEnvironment)
1429 return findMipsMuslMultilibs(Flags, NonExistent, Result);
1430
1431 if (TargetTriple.getVendor() == llvm::Triple::MipsTechnologies &&
1432 TargetTriple.getOS() == llvm::Triple::Linux &&
1433 TargetTriple.isGNUEnvironment())
1434 return findMipsMtiMultilibs(Flags, NonExistent, Result);
1435
1436 if (TargetTriple.getVendor() == llvm::Triple::ImaginationTechnologies &&
1437 TargetTriple.getOS() == llvm::Triple::Linux &&
1438 TargetTriple.isGNUEnvironment())
1439 return findMipsImgMultilibs(Flags, NonExistent, Result);
1440
1441 if (findMipsCsMultilibs(Flags, NonExistent, Result))
1442 return true;
1443
1444 // Fallback to the regular toolchain-tree structure.
1445 Multilib Default;
1446 Result.Multilibs.push_back(Default);
1447 Result.Multilibs.FilterOut(NonExistent);
1448
1449 if (Result.Multilibs.select(Flags, Result.SelectedMultilib)) {
1450 Result.BiarchSibling = Multilib();
1451 return true;
1452 }
1453
1454 return false;
1455 }
1456
1457 static void findAndroidArmMultilibs(const Driver &D,
1458 const llvm::Triple &TargetTriple,
1459 StringRef Path, const ArgList &Args,
1460 DetectedMultilibs &Result) {
1461 // Find multilibs with subdirectories like armv7-a, thumb, armv7-a/thumb.
1462 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1463 Multilib ArmV7Multilib = makeMultilib("/armv7-a")
1464 .flag("+march=armv7-a")
1465 .flag("-mthumb");
1466 Multilib ThumbMultilib = makeMultilib("/thumb")
1467 .flag("-march=armv7-a")
1468 .flag("+mthumb");
1469 Multilib ArmV7ThumbMultilib = makeMultilib("/armv7-a/thumb")
1470 .flag("+march=armv7-a")
1471 .flag("+mthumb");
1472 Multilib DefaultMultilib = makeMultilib("")
1473 .flag("-march=armv7-a")
1474 .flag("-mthumb");
1475 MultilibSet AndroidArmMultilibs =
1476 MultilibSet()
1477 .Either(ThumbMultilib, ArmV7Multilib,
1478 ArmV7ThumbMultilib, DefaultMultilib)
1479 .FilterOut(NonExistent);
1480
1481 Multilib::flags_list Flags;
1482 llvm::StringRef Arch = Args.getLastArgValue(options::OPT_march_EQ);
1483 bool IsArmArch = TargetTriple.getArch() == llvm::Triple::arm;
1484 bool IsThumbArch = TargetTriple.getArch() == llvm::Triple::thumb;
1485 bool IsV7SubArch = TargetTriple.getSubArch() == llvm::Triple::ARMSubArch_v7;
1486 bool IsThumbMode = IsThumbArch ||
1487 Args.hasFlag(options::OPT_mthumb, options::OPT_mno_thumb, false) ||
1488 (IsArmArch && llvm::ARM::parseArchISA(Arch) == llvm::ARM::ISAKind::THUMB);
1489 bool IsArmV7Mode = (IsArmArch || IsThumbArch) &&
1490 (llvm::ARM::parseArchVersion(Arch) == 7 ||
1491 (IsArmArch && Arch == "" && IsV7SubArch));
1492 addMultilibFlag(IsArmV7Mode, "march=armv7-a", Flags);
1493 addMultilibFlag(IsThumbMode, "mthumb", Flags);
1494
1495 if (AndroidArmMultilibs.select(Flags, Result.SelectedMultilib))
1496 Result.Multilibs = AndroidArmMultilibs;
1497 }
1498
1499 static bool findMSP430Multilibs(const Driver &D,
1500 const llvm::Triple &TargetTriple,
1501 StringRef Path, const ArgList &Args,
1502 DetectedMultilibs &Result) {
1503 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1504 Multilib MSP430Multilib = makeMultilib("/430");
1505 // FIXME: when clang starts to support msp430x ISA additional logic
1506 // to select between multilib must be implemented
1507 // Multilib MSP430xMultilib = makeMultilib("/large");
1508
1509 Result.Multilibs.push_back(MSP430Multilib);
1510 Result.Multilibs.FilterOut(NonExistent);
1511
1512 Multilib::flags_list Flags;
1513 if (Result.Multilibs.select(Flags, Result.SelectedMultilib))
1514 return true;
1515
1516 return false;
1517 }
1518
1519 static void findRISCVBareMetalMultilibs(const Driver &D,
1520 const llvm::Triple &TargetTriple,
1521 StringRef Path, const ArgList &Args,
1522 DetectedMultilibs &Result) {
1523 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1524 struct RiscvMultilib {
1525 StringRef march;
1526 StringRef mabi;
1527 };
1528 // currently only support the set of multilibs like riscv-gnu-toolchain does.
1529 // TODO: support MULTILIB_REUSE
1530 SmallVector<RiscvMultilib, 8> RISCVMultilibSet = {
1531 {"rv32i", "ilp32"}, {"rv32im", "ilp32"}, {"rv32iac", "ilp32"},
1532 {"rv32imac", "ilp32"}, {"rv32imafc", "ilp32f"}, {"rv64imac", "lp64"},
1533 {"rv64imafdc", "lp64d"}};
1534
1535 std::vector<Multilib> Ms;
1536 for (auto Element : RISCVMultilibSet) {
1537 // multilib path rule is ${march}/${mabi}
1538 Ms.emplace_back(
1539 makeMultilib((Twine(Element.march) + "/" + Twine(Element.mabi)).str())
1540 .flag(Twine("+march=", Element.march).str())
1541 .flag(Twine("+mabi=", Element.mabi).str()));
1542 }
1543 MultilibSet RISCVMultilibs =
1544 MultilibSet()
1545 .Either(ArrayRef<Multilib>(Ms))
1546 .FilterOut(NonExistent)
1547 .setFilePathsCallback([](const Multilib &M) {
1548 return std::vector<std::string>(
1549 {M.gccSuffix(),
1550 "/../../../../riscv64-unknown-elf/lib" + M.gccSuffix(),
1551 "/../../../../riscv32-unknown-elf/lib" + M.gccSuffix()});
1552 });
1553
1554
1555 Multilib::flags_list Flags;
1556 llvm::StringSet<> Added_ABIs;
1557 StringRef ABIName = tools::riscv::getRISCVABI(Args, TargetTriple);
1558 StringRef MArch = tools::riscv::getRISCVArch(Args, TargetTriple);
1559 for (auto Element : RISCVMultilibSet) {
1560 addMultilibFlag(MArch == Element.march,
1561 Twine("march=", Element.march).str().c_str(), Flags);
1562 if (!Added_ABIs.count(Element.mabi)) {
1563 Added_ABIs.insert(Element.mabi);
1564 addMultilibFlag(ABIName == Element.mabi,
1565 Twine("mabi=", Element.mabi).str().c_str(), Flags);
1566 }
1567 }
1568
1569 if (RISCVMultilibs.select(Flags, Result.SelectedMultilib))
1570 Result.Multilibs = RISCVMultilibs;
1571 }
1572
1573 static void findRISCVMultilibs(const Driver &D,
1574 const llvm::Triple &TargetTriple, StringRef Path,
1575 const ArgList &Args, DetectedMultilibs &Result) {
1576 if (TargetTriple.getOS() == llvm::Triple::UnknownOS)
1577 return findRISCVBareMetalMultilibs(D, TargetTriple, Path, Args, Result);
1578
1579 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1580 Multilib Ilp32 = makeMultilib("lib32/ilp32").flag("+m32").flag("+mabi=ilp32");
1581 Multilib Ilp32f =
1582 makeMultilib("lib32/ilp32f").flag("+m32").flag("+mabi=ilp32f");
1583 Multilib Ilp32d =
1584 makeMultilib("lib32/ilp32d").flag("+m32").flag("+mabi=ilp32d");
1585 Multilib Lp64 = makeMultilib("lib64/lp64").flag("+m64").flag("+mabi=lp64");
1586 Multilib Lp64f = makeMultilib("lib64/lp64f").flag("+m64").flag("+mabi=lp64f");
1587 Multilib Lp64d = makeMultilib("lib64/lp64d").flag("+m64").flag("+mabi=lp64d");
1588 MultilibSet RISCVMultilibs =
1589 MultilibSet()
1590 .Either({Ilp32, Ilp32f, Ilp32d, Lp64, Lp64f, Lp64d})
1591 .FilterOut(NonExistent);
1592
1593 Multilib::flags_list Flags;
1594 bool IsRV64 = TargetTriple.getArch() == llvm::Triple::riscv64;
1595 StringRef ABIName = tools::riscv::getRISCVABI(Args, TargetTriple);
1596
1597 addMultilibFlag(!IsRV64, "m32", Flags);
1598 addMultilibFlag(IsRV64, "m64", Flags);
1599 addMultilibFlag(ABIName == "ilp32", "mabi=ilp32", Flags);
1600 addMultilibFlag(ABIName == "ilp32f", "mabi=ilp32f", Flags);
1601 addMultilibFlag(ABIName == "ilp32d", "mabi=ilp32d", Flags);
1602 addMultilibFlag(ABIName == "lp64", "mabi=lp64", Flags);
1603 addMultilibFlag(ABIName == "lp64f", "mabi=lp64f", Flags);
1604 addMultilibFlag(ABIName == "lp64d", "mabi=lp64d", Flags);
1605
1606 if (RISCVMultilibs.select(Flags, Result.SelectedMultilib))
1607 Result.Multilibs = RISCVMultilibs;
1608 }
1609
1610 static bool findBiarchMultilibs(const Driver &D,
1611 const llvm::Triple &TargetTriple,
1612 StringRef Path, const ArgList &Args,
1613 bool NeedsBiarchSuffix,
1614 DetectedMultilibs &Result) {
1615 Multilib Default;
1616
1617 // Some versions of SUSE and Fedora on ppc64 put 32-bit libs
1618 // in what would normally be GCCInstallPath and put the 64-bit
1619 // libs in a subdirectory named 64. The simple logic we follow is that
1620 // *if* there is a subdirectory of the right name with crtbegin.o in it,
1621 // we use that. If not, and if not a biarch triple alias, we look for
1622 // crtbegin.o without the subdirectory.
1623
1624 StringRef Suff64 = "/64";
1625 // Solaris uses platform-specific suffixes instead of /64.
1626 if (TargetTriple.getOS() == llvm::Triple::Solaris) {
1627 switch (TargetTriple.getArch()) {
1628 case llvm::Triple::x86:
1629 case llvm::Triple::x86_64:
1630 Suff64 = "/amd64";
1631 break;
1632 case llvm::Triple::sparc:
1633 case llvm::Triple::sparcv9:
1634 Suff64 = "/sparcv9";
1635 break;
1636 default:
1637 break;
1638 }
1639 }
1640
1641 Multilib Alt64 = Multilib()
1642 .gccSuffix(Suff64)
1643 .includeSuffix(Suff64)
1644 .flag("-m32")
1645 .flag("+m64")
1646 .flag("-mx32");
1647 Multilib Alt32 = Multilib()
1648 .gccSuffix("/32")
1649 .includeSuffix("/32")
1650 .flag("+m32")
1651 .flag("-m64")
1652 .flag("-mx32");
1653 Multilib Altx32 = Multilib()
1654 .gccSuffix("/x32")
1655 .includeSuffix("/x32")
1656 .flag("-m32")
1657 .flag("-m64")
1658 .flag("+mx32");
1659
1660 // GCC toolchain for IAMCU doesn't have crtbegin.o, so look for libgcc.a.
1661 FilterNonExistent NonExistent(
1662 Path, TargetTriple.isOSIAMCU() ? "/libgcc.a" : "/crtbegin.o", D.getVFS());
1663
1664 // Determine default multilib from: 32, 64, x32
1665 // Also handle cases such as 64 on 32, 32 on 64, etc.
1666 enum { UNKNOWN, WANT32, WANT64, WANTX32 } Want = UNKNOWN;
1667 const bool IsX32 = TargetTriple.getEnvironment() == llvm::Triple::GNUX32;
1668 if (TargetTriple.isArch32Bit() && !NonExistent(Alt32))
1669 Want = WANT64;
1670 else if (TargetTriple.isArch64Bit() && IsX32 && !NonExistent(Altx32))
1671 Want = WANT64;
1672 else if (TargetTriple.isArch64Bit() && !IsX32 && !NonExistent(Alt64))
1673 Want = WANT32;
1674 else {
1675 if (TargetTriple.isArch32Bit())
1676 Want = NeedsBiarchSuffix ? WANT64 : WANT32;
1677 else if (IsX32)
1678 Want = NeedsBiarchSuffix ? WANT64 : WANTX32;
1679 else
1680 Want = NeedsBiarchSuffix ? WANT32 : WANT64;
1681 }
1682
1683 if (Want == WANT32)
1684 Default.flag("+m32").flag("-m64").flag("-mx32");
1685 else if (Want == WANT64)
1686 Default.flag("-m32").flag("+m64").flag("-mx32");
1687 else if (Want == WANTX32)
1688 Default.flag("-m32").flag("-m64").flag("+mx32");
1689 else
1690 return false;
1691
1692 Result.Multilibs.push_back(Default);
1693 Result.Multilibs.push_back(Alt64);
1694 Result.Multilibs.push_back(Alt32);
1695 Result.Multilibs.push_back(Altx32);
1696
1697 Result.Multilibs.FilterOut(NonExistent);
1698
1699 Multilib::flags_list Flags;
1700 addMultilibFlag(TargetTriple.isArch64Bit() && !IsX32, "m64", Flags);
1701 addMultilibFlag(TargetTriple.isArch32Bit(), "m32", Flags);
1702 addMultilibFlag(TargetTriple.isArch64Bit() && IsX32, "mx32", Flags);
1703
1704 if (!Result.Multilibs.select(Flags, Result.SelectedMultilib))
1705 return false;
1706
1707 if (Result.SelectedMultilib == Alt64 || Result.SelectedMultilib == Alt32 ||
1708 Result.SelectedMultilib == Altx32)
1709 Result.BiarchSibling = Default;
1710
1711 return true;
1712 }
1713
1714 /// Generic_GCC - A tool chain using the 'gcc' command to perform
1715 /// all subcommands; this relies on gcc translating the majority of
1716 /// command line options.
1717
1718 /// Less-than for GCCVersion, implementing a Strict Weak Ordering.
1719 bool Generic_GCC::GCCVersion::isOlderThan(int RHSMajor, int RHSMinor,
1720 int RHSPatch,
1721 StringRef RHSPatchSuffix) const {
1722 if (Major != RHSMajor)
1723 return Major < RHSMajor;
1724 if (Minor != RHSMinor)
1725 return Minor < RHSMinor;
1726 if (Patch != RHSPatch) {
1727 // Note that versions without a specified patch sort higher than those with
1728 // a patch.
1729 if (RHSPatch == -1)
1730 return true;
1731 if (Patch == -1)
1732 return false;
1733
1734 // Otherwise just sort on the patch itself.
1735 return Patch < RHSPatch;
1736 }
1737 if (PatchSuffix != RHSPatchSuffix) {
1738 // Sort empty suffixes higher.
1739 if (RHSPatchSuffix.empty())
1740 return true;
1741 if (PatchSuffix.empty())
1742 return false;
1743
1744 // Provide a lexicographic sort to make this a total ordering.
1745 return PatchSuffix < RHSPatchSuffix;
1746 }
1747
1748 // The versions are equal.
1749 return false;
1750 }
1751
1752 /// Parse a GCCVersion object out of a string of text.
1753 ///
1754 /// This is the primary means of forming GCCVersion objects.
1755 /*static*/
1756 Generic_GCC::GCCVersion Generic_GCC::GCCVersion::Parse(StringRef VersionText) {
1757 const GCCVersion BadVersion = {VersionText.str(), -1, -1, -1, "", "", ""};
1758 std::pair<StringRef, StringRef> First = VersionText.split('.');
1759 std::pair<StringRef, StringRef> Second = First.second.split('.');
1760
1761 GCCVersion GoodVersion = {VersionText.str(), -1, -1, -1, "", "", ""};
1762 if (First.first.getAsInteger(10, GoodVersion.Major) || GoodVersion.Major < 0)
1763 return BadVersion;
1764 GoodVersion.MajorStr = First.first.str();
1765 if (First.second.empty())
1766 return GoodVersion;
1767 StringRef MinorStr = Second.first;
1768 if (Second.second.empty()) {
1769 if (size_t EndNumber = MinorStr.find_first_not_of("0123456789")) {
1770 GoodVersion.PatchSuffix = MinorStr.substr(EndNumber);
1771 MinorStr = MinorStr.slice(0, EndNumber);
1772 }
1773 }
1774 if (MinorStr.getAsInteger(10, GoodVersion.Minor) || GoodVersion.Minor < 0)
1775 return BadVersion;
1776 GoodVersion.MinorStr = MinorStr.str();
1777
1778 // First look for a number prefix and parse that if present. Otherwise just
1779 // stash the entire patch string in the suffix, and leave the number
1780 // unspecified. This covers versions strings such as:
1781 // 5 (handled above)
1782 // 4.4
1783 // 4.4-patched
1784 // 4.4.0
1785 // 4.4.x
1786 // 4.4.2-rc4
1787 // 4.4.x-patched
1788 // And retains any patch number it finds.
1789 StringRef PatchText = Second.second;
1790 if (!PatchText.empty()) {
1791 if (size_t EndNumber = PatchText.find_first_not_of("0123456789")) {
1792 // Try to parse the number and any suffix.
1793 if (PatchText.slice(0, EndNumber).getAsInteger(10, GoodVersion.Patch) ||
1794 GoodVersion.Patch < 0)
1795 return BadVersion;
1796 GoodVersion.PatchSuffix = PatchText.substr(EndNumber);
1797 }
1798 }
1799
1800 return GoodVersion;
1801 }
1802
1803 static llvm::StringRef getGCCToolchainDir(const ArgList &Args,
1804 llvm::StringRef SysRoot) {
1805 const Arg *A = Args.getLastArg(clang::driver::options::OPT_gcc_toolchain);
1806 if (A)
1807 return A->getValue();
1808
1809 // If we have a SysRoot, ignore GCC_INSTALL_PREFIX.
1810 // GCC_INSTALL_PREFIX specifies the gcc installation for the default
1811 // sysroot and is likely not valid with a different sysroot.
1812 if (!SysRoot.empty())
1813 return "";
1814
1815 return GCC_INSTALL_PREFIX;
1816 }
1817
1818 /// Initialize a GCCInstallationDetector from the driver.
1819 ///
1820 /// This performs all of the autodetection and sets up the various paths.
1821 /// Once constructed, a GCCInstallationDetector is essentially immutable.
1822 ///
1823 /// FIXME: We shouldn't need an explicit TargetTriple parameter here, and
1824 /// should instead pull the target out of the driver. This is currently
1825 /// necessary because the driver doesn't store the final version of the target
1826 /// triple.
1827 void Generic_GCC::GCCInstallationDetector::init(
1828 const llvm::Triple &TargetTriple, const ArgList &Args,
1829 ArrayRef<std::string> ExtraTripleAliases) {
1830 llvm::Triple BiarchVariantTriple = TargetTriple.isArch32Bit()
1831 ? TargetTriple.get64BitArchVariant()
1832 : TargetTriple.get32BitArchVariant();
1833 // The library directories which may contain GCC installations.
1834 SmallVector<StringRef, 4> CandidateLibDirs, CandidateBiarchLibDirs;
1835 // The compatible GCC triples for this particular architecture.
1836 SmallVector<StringRef, 16> CandidateTripleAliases;
1837 SmallVector<StringRef, 16> CandidateBiarchTripleAliases;
1838 CollectLibDirsAndTriples(TargetTriple, BiarchVariantTriple, CandidateLibDirs,
1839 CandidateTripleAliases, CandidateBiarchLibDirs,
1840 CandidateBiarchTripleAliases);
1841
1842 // Compute the set of prefixes for our search.
1843 SmallVector<std::string, 8> Prefixes(D.PrefixDirs.begin(),
1844 D.PrefixDirs.end());
1845
1846 StringRef GCCToolchainDir = getGCCToolchainDir(Args, D.SysRoot);
1847 if (GCCToolchainDir != "") {
1848 if (GCCToolchainDir.back() == '/')
1849 GCCToolchainDir = GCCToolchainDir.drop_back(); // remove the /
1850
1851 Prefixes.push_back(GCCToolchainDir);
1852 } else {
1853 // If we have a SysRoot, try that first.
1854 if (!D.SysRoot.empty()) {
1855 Prefixes.push_back(D.SysRoot);
1856 AddDefaultGCCPrefixes(TargetTriple, Prefixes, D.SysRoot);
1857 }
1858
1859 // Then look for gcc installed alongside clang.
1860 Prefixes.push_back(D.InstalledDir + "/..");
1861
1862 // Next, look for prefix(es) that correspond to distribution-supplied gcc
1863 // installations.
1864 if (D.SysRoot.empty()) {
1865 // Typically /usr.
1866 AddDefaultGCCPrefixes(TargetTriple, Prefixes, D.SysRoot);
1867 }
1868 }
1869
1870 // Try to respect gcc-config on Gentoo. However, do that only
1871 // if --gcc-toolchain is not provided or equal to the Gentoo install
1872 // in /usr. This avoids accidentally enforcing the system GCC version
1873 // when using a custom toolchain.
1874 if (GCCToolchainDir == "" || GCCToolchainDir == D.SysRoot + "/usr") {
1875 SmallVector<StringRef, 16> GentooTestTriples;
1876 // Try to match an exact triple as target triple first.
1877 // e.g. crossdev -S x86_64-gentoo-linux-gnu will install gcc libs for
1878 // x86_64-gentoo-linux-gnu. But "clang -target x86_64-gentoo-linux-gnu"
1879 // may pick the libraries for x86_64-pc-linux-gnu even when exact matching
1880 // triple x86_64-gentoo-linux-gnu is present.
1881 GentooTestTriples.push_back(TargetTriple.str());
1882 // Check rest of triples.
1883 GentooTestTriples.append(ExtraTripleAliases.begin(),
1884 ExtraTripleAliases.end());
1885 GentooTestTriples.append(CandidateTripleAliases.begin(),
1886 CandidateTripleAliases.end());
1887 if (ScanGentooConfigs(TargetTriple, Args, GentooTestTriples,
1888 CandidateBiarchTripleAliases))
1889 return;
1890 }
1891
1892 // Loop over the various components which exist and select the best GCC
1893 // installation available. GCC installs are ranked by version number.
1894 Version = GCCVersion::Parse("0.0.0");
1895 for (const std::string &Prefix : Prefixes) {
1896 if (!D.getVFS().exists(Prefix))
1897 continue;
1898 for (StringRef Suffix : CandidateLibDirs) {
1899 const std::string LibDir = Prefix + Suffix.str();
1900 if (!D.getVFS().exists(LibDir))
1901 continue;
1902 // Try to match the exact target triple first.
1903 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, TargetTriple.str());
1904 // Try rest of possible triples.
1905 for (StringRef Candidate : ExtraTripleAliases) // Try these first.
1906 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate);
1907 for (StringRef Candidate : CandidateTripleAliases)
1908 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate);
1909 }
1910 for (StringRef Suffix : CandidateBiarchLibDirs) {
1911 const std::string LibDir = Prefix + Suffix.str();
1912 if (!D.getVFS().exists(LibDir))
1913 continue;
1914 for (StringRef Candidate : CandidateBiarchTripleAliases)
1915 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate,
1916 /*NeedsBiarchSuffix=*/ true);
1917 }
1918 }
1919 }
1920
1921 void Generic_GCC::GCCInstallationDetector::print(raw_ostream &OS) const {
1922 for (const auto &InstallPath : CandidateGCCInstallPaths)
1923 OS << "Found candidate GCC installation: " << InstallPath << "\n";
1924
1925 if (!GCCInstallPath.empty())
1926 OS << "Selected GCC installation: " << GCCInstallPath << "\n";
1927
1928 for (const auto &Multilib : Multilibs)
1929 OS << "Candidate multilib: " << Multilib << "\n";
1930
1931 if (Multilibs.size() != 0 || !SelectedMultilib.isDefault())
1932 OS << "Selected multilib: " << SelectedMultilib << "\n";
1933 }
1934
1935 bool Generic_GCC::GCCInstallationDetector::getBiarchSibling(Multilib &M) const {
1936 if (BiarchSibling.hasValue()) {
1937 M = BiarchSibling.getValue();
1938 return true;
1939 }
1940 return false;
1941 }
1942
1943 void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
1944 const llvm::Triple &TargetTriple, SmallVectorImpl<std::string> &Prefixes,
1945 StringRef SysRoot) {
1946 if (TargetTriple.getOS() == llvm::Triple::Solaris) {
1947 // Solaris is a special case.
1948 // The GCC installation is under
1949 // /usr/gcc/<major>.<minor>/lib/gcc/<triple>/<major>.<minor>.<patch>/
1950 // so we need to find those /usr/gcc/*/lib/gcc libdirs and go with
1951 // /usr/gcc/<version> as a prefix.
1952
1953 std::string PrefixDir = SysRoot.str() + "/usr/gcc";
1954 std::error_code EC;
1955 for (llvm::vfs::directory_iterator LI = D.getVFS().dir_begin(PrefixDir, EC),
1956 LE;
1957 !EC && LI != LE; LI = LI.increment(EC)) {
1958 StringRef VersionText = llvm::sys::path::filename(LI->path());
1959 GCCVersion CandidateVersion = GCCVersion::Parse(VersionText);
1960
1961 // Filter out obviously bad entries.
1962 if (CandidateVersion.Major == -1 || CandidateVersion.isOlderThan(4, 1, 1))
1963 continue;
1964
1965 std::string CandidatePrefix = PrefixDir + "/" + VersionText.str();
1966 std::string CandidateLibPath = CandidatePrefix + "/lib/gcc";
1967 if (!D.getVFS().exists(CandidateLibPath))
1968 continue;
1969
1970 Prefixes.push_back(CandidatePrefix);
1971 }
1972 return;
1973 }
1974
1975 // Non-Solaris is much simpler - most systems just go with "/usr".
1976 if (SysRoot.empty() && TargetTriple.getOS() == llvm::Triple::Linux) {
1977 // Yet, still look for RHEL devtoolsets.
1978 Prefixes.push_back("/opt/rh/devtoolset-8/root/usr");
1979 Prefixes.push_back("/opt/rh/devtoolset-7/root/usr");
1980 Prefixes.push_back("/opt/rh/devtoolset-6/root/usr");
1981 Prefixes.push_back("/opt/rh/devtoolset-4/root/usr");
1982 Prefixes.push_back("/opt/rh/devtoolset-3/root/usr");
1983 Prefixes.push_back("/opt/rh/devtoolset-2/root/usr");
1984 }
1985 Prefixes.push_back(SysRoot.str() + "/usr");
1986 }
1987
1988 /*static*/ void Generic_GCC::GCCInstallationDetector::CollectLibDirsAndTriples(
1989 const llvm::Triple &TargetTriple, const llvm::Triple &BiarchTriple,
1990 SmallVectorImpl<StringRef> &LibDirs,
1991 SmallVectorImpl<StringRef> &TripleAliases,
1992 SmallVectorImpl<StringRef> &BiarchLibDirs,
1993 SmallVectorImpl<StringRef> &BiarchTripleAliases) {
1994 // Declare a bunch of static data sets that we'll select between below. These
1995 // are specifically designed to always refer to string literals to avoid any
1996 // lifetime or initialization issues.
1997 static const char *const AArch64LibDirs[] = {"/lib64", "/lib"};
1998 static const char *const AArch64Triples[] = {
1999 "aarch64-none-linux-gnu", "aarch64-linux-gnu", "aarch64-redhat-linux",
2000 "aarch64-suse-linux", "aarch64-linux-android"};
2001 static const char *const AArch64beLibDirs[] = {"/lib"};
2002 static const char *const AArch64beTriples[] = {"aarch64_be-none-linux-gnu",
2003 "aarch64_be-linux-gnu"};
2004
2005 static const char *const ARMLibDirs[] = {"/lib"};
2006 static const char *const ARMTriples[] = {"arm-linux-gnueabi",
2007 "arm-linux-androideabi"};
2008 static const char *const ARMHFTriples[] = {"arm-linux-gnueabihf",
2009 "armv7hl-redhat-linux-gnueabi",
2010 "armv6hl-suse-linux-gnueabi",
2011 "armv7hl-suse-linux-gnueabi"};
2012 static const char *const ARMebLibDirs[] = {"/lib"};
2013 static const char *const ARMebTriples[] = {"armeb-linux-gnueabi",
2014 "armeb-linux-androideabi"};
2015 static const char *const ARMebHFTriples[] = {
2016 "armeb-linux-gnueabihf", "armebv7hl-redhat-linux-gnueabi"};
2017
2018 static const char *const AVRLibDirs[] = {"/lib"};
2019 static const char *const AVRTriples[] = {"avr"};
2020
2021 static const char *const X86_64LibDirs[] = {"/lib64", "/lib"};
2022 static const char *const X86_64Triples[] = {
2023 "x86_64-linux-gnu", "x86_64-unknown-linux-gnu",
2024 "x86_64-pc-linux-gnu", "x86_64-redhat-linux6E",
2025 "x86_64-redhat-linux", "x86_64-suse-linux",
2026 "x86_64-manbo-linux-gnu", "x86_64-linux-gnu",
2027 "x86_64-slackware-linux", "x86_64-unknown-linux",
2028 "x86_64-amazon-linux", "x86_64-linux-android"};
2029 static const char *const X32LibDirs[] = {"/libx32"};
2030 static const char *const X86LibDirs[] = {"/lib32", "/lib"};
2031 static const char *const X86Triples[] = {
2032 "i686-linux-gnu", "i686-pc-linux-gnu", "i486-linux-gnu",
2033 "i386-linux-gnu", "i386-redhat-linux6E", "i686-redhat-linux",
2034 "i586-redhat-linux", "i386-redhat-linux", "i586-suse-linux",
2035 "i486-slackware-linux", "i686-montavista-linux", "i586-linux-gnu",
2036 "i686-linux-android", "i386-gnu", "i486-gnu",
2037 "i586-gnu", "i686-gnu"};
2038
2039 static const char *const MIPSLibDirs[] = {"/lib"};
2040 static const char *const MIPSTriples[] = {
2041 "mips-linux-gnu", "mips-mti-linux", "mips-mti-linux-gnu",
2042 "mips-img-linux-gnu", "mipsisa32r6-linux-gnu"};
2043 static const char *const MIPSELLibDirs[] = {"/lib"};
2044 static const char *const MIPSELTriples[] = {
2045 "mipsel-linux-gnu", "mips-img-linux-gnu", "mipsisa32r6el-linux-gnu",
2046 "mipsel-linux-android"};
2047
2048 static const char *const MIPS64LibDirs[] = {"/lib64", "/lib"};
2049 static const char *const MIPS64Triples[] = {
2050 "mips64-linux-gnu", "mips-mti-linux-gnu",
2051 "mips-img-linux-gnu", "mips64-linux-gnuabi64",
2052 "mipsisa64r6-linux-gnu", "mipsisa64r6-linux-gnuabi64"};
2053 static const char *const MIPS64ELLibDirs[] = {"/lib64", "/lib"};
2054 static const char *const MIPS64ELTriples[] = {
2055 "mips64el-linux-gnu", "mips-mti-linux-gnu",
2056 "mips-img-linux-gnu", "mips64el-linux-gnuabi64",
2057 "mipsisa64r6el-linux-gnu", "mipsisa64r6el-linux-gnuabi64",
2058 "mips64el-linux-android"};
2059
2060 static const char *const MIPSN32LibDirs[] = {"/lib32"};
2061 static const char *const MIPSN32Triples[] = {"mips64-linux-gnuabin32",
2062 "mipsisa64r6-linux-gnuabin32"};
2063 static const char *const MIPSN32ELLibDirs[] = {"/lib32"};
2064 static const char *const MIPSN32ELTriples[] = {
2065 "mips64el-linux-gnuabin32", "mipsisa64r6el-linux-gnuabin32"};
2066
2067 static const char *const MSP430LibDirs[] = {"/lib"};
2068 static const char *const MSP430Triples[] = {"msp430-elf"};
2069
2070 static const char *const PPCLibDirs[] = {"/lib32", "/lib"};
2071 static const char *const PPCTriples[] = {
2072 "powerpc-linux-gnu", "powerpc-unknown-linux-gnu", "powerpc-linux-gnuspe",
2073 // On 32-bit PowerPC systems running SUSE Linux, gcc is configured as a
2074 // 64-bit compiler which defaults to "-m32", hence "powerpc64-suse-linux".
2075 "powerpc64-suse-linux", "powerpc-montavista-linuxspe"};
2076 static const char *const PPC64LibDirs[] = {"/lib64", "/lib"};
2077 static const char *const PPC64Triples[] = {
2078 "powerpc64-linux-gnu", "powerpc64-unknown-linux-gnu",
2079 "powerpc64-suse-linux", "ppc64-redhat-linux"};
2080 static const char *const PPC64LELibDirs[] = {"/lib64", "/lib"};
2081 static const char *const PPC64LETriples[] = {
2082 "powerpc64le-linux-gnu", "powerpc64le-unknown-linux-gnu",
2083 "powerpc64le-suse-linux", "ppc64le-redhat-linux"};
2084
2085 static const char *const RISCV32LibDirs[] = {"/lib32", "/lib"};
2086 static const char *const RISCV32Triples[] = {"riscv32-unknown-linux-gnu",
2087 "riscv32-linux-gnu",
2088 "riscv32-unknown-elf"};
2089 static const char *const RISCV64LibDirs[] = {"/lib64", "/lib"};
2090 static const char *const RISCV64Triples[] = {"riscv64-unknown-linux-gnu",
2091 "riscv64-linux-gnu",
2092 "riscv64-unknown-elf",
2093 "riscv64-suse-linux"};
2094
2095 static const char *const SPARCv8LibDirs[] = {"/lib32", "/lib"};
2096 static const char *const SPARCv8Triples[] = {"sparc-linux-gnu",
2097 "sparcv8-linux-gnu"};
2098 static const char *const SPARCv9LibDirs[] = {"/lib64", "/lib"};
2099 static const char *const SPARCv9Triples[] = {"sparc64-linux-gnu",
2100 "sparcv9-linux-gnu"};
2101
2102 static const char *const SystemZLibDirs[] = {"/lib64", "/lib"};
2103 static const char *const SystemZTriples[] = {
2104 "s390x-linux-gnu", "s390x-unknown-linux-gnu", "s390x-ibm-linux-gnu",
2105 "s390x-suse-linux", "s390x-redhat-linux"};
2106
2107
2108 using std::begin;
2109 using std::end;
2110
2111 if (TargetTriple.getOS() == llvm::Triple::Solaris) {
2112 static const char *const SolarisLibDirs[] = {"/lib"};
2113 static const char *const SolarisSparcV8Triples[] = {
2114 "sparc-sun-solaris2.11", "sparc-sun-solaris2.12"};
2115 static const char *const SolarisSparcV9Triples[] = {
2116 "sparcv9-sun-solaris2.11", "sparcv9-sun-solaris2.12"};
2117 static const char *const SolarisX86Triples[] = {"i386-pc-solaris2.11",
2118 "i386-pc-solaris2.12"};
2119 static const char *const SolarisX86_64Triples[] = {"x86_64-pc-solaris2.11",
2120 "x86_64-pc-solaris2.12"};
2121 LibDirs.append(begin(SolarisLibDirs), end(SolarisLibDirs));
2122 BiarchLibDirs.append(begin(SolarisLibDirs), end(SolarisLibDirs));
2123 switch (TargetTriple.getArch()) {
2124 case llvm::Triple::x86:
2125 TripleAliases.append(begin(SolarisX86Triples), end(SolarisX86Triples));
2126 BiarchTripleAliases.append(begin(SolarisX86_64Triples),
2127 end(SolarisX86_64Triples));
2128 break;
2129 case llvm::Triple::x86_64:
2130 TripleAliases.append(begin(SolarisX86_64Triples),
2131 end(SolarisX86_64Triples));
2132 BiarchTripleAliases.append(begin(SolarisX86Triples),
2133 end(SolarisX86Triples));
2134 break;
2135 case llvm::Triple::sparc:
2136 TripleAliases.append(begin(SolarisSparcV8Triples),
2137 end(SolarisSparcV8Triples));
2138 BiarchTripleAliases.append(begin(SolarisSparcV9Triples),
2139 end(SolarisSparcV9Triples));
2140 break;
2141 case llvm::Triple::sparcv9:
2142 TripleAliases.append(begin(SolarisSparcV9Triples),
2143 end(SolarisSparcV9Triples));
2144 BiarchTripleAliases.append(begin(SolarisSparcV8Triples),
2145 end(SolarisSparcV8Triples));
2146 break;
2147 default:
2148 break;
2149 }
2150 return;
2151 }
2152
2153 // Android targets should not use GNU/Linux tools or libraries.
2154 if (TargetTriple.isAndroid()) {
2155 static const char *const AArch64AndroidTriples[] = {
2156 "aarch64-linux-android"};
2157 static const char *const ARMAndroidTriples[] = {"arm-linux-androideabi"};
2158 static const char *const MIPSELAndroidTriples[] = {"mipsel-linux-android"};
2159 static const char *const MIPS64ELAndroidTriples[] = {
2160 "mips64el-linux-android"};
2161 static const char *const X86AndroidTriples[] = {"i686-linux-android"};
2162 static const char *const X86_64AndroidTriples[] = {"x86_64-linux-android"};
2163
2164 switch (TargetTriple.getArch()) {
2165 case llvm::Triple::aarch64:
2166 LibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
2167 TripleAliases.append(begin(AArch64AndroidTriples),
2168 end(AArch64AndroidTriples));
2169 break;
2170 case llvm::Triple::arm:
2171 case llvm::Triple::thumb:
2172 LibDirs.append(begin(ARMLibDirs), end(ARMLibDirs));
2173 TripleAliases.append(begin(ARMAndroidTriples), end(ARMAndroidTriples));
2174 break;
2175 case llvm::Triple::mipsel:
2176 LibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs));
2177 TripleAliases.append(begin(MIPSELAndroidTriples),
2178 end(MIPSELAndroidTriples));
2179 BiarchLibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs));
2180 BiarchTripleAliases.append(begin(MIPS64ELAndroidTriples),
2181 end(MIPS64ELAndroidTriples));
2182 break;
2183 case llvm::Triple::mips64el:
2184 LibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs));
2185 TripleAliases.append(begin(MIPS64ELAndroidTriples),
2186 end(MIPS64ELAndroidTriples));
2187 BiarchLibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs));
2188 BiarchTripleAliases.append(begin(MIPSELAndroidTriples),
2189 end(MIPSELAndroidTriples));
2190 break;
2191 case llvm::Triple::x86_64:
2192 LibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2193 TripleAliases.append(begin(X86_64AndroidTriples),
2194 end(X86_64AndroidTriples));
2195 BiarchLibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2196 BiarchTripleAliases.append(begin(X86AndroidTriples),
2197 end(X86AndroidTriples));
2198 break;
2199 case llvm::Triple::x86:
2200 LibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2201 TripleAliases.append(begin(X86AndroidTriples), end(X86AndroidTriples));
2202 BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2203 BiarchTripleAliases.append(begin(X86_64AndroidTriples),
2204 end(X86_64AndroidTriples));
2205 break;
2206 default:
2207 break;
2208 }
2209
2210 return;
2211 }
2212
2213 switch (TargetTriple.getArch()) {
2214 case llvm::Triple::aarch64:
2215 LibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
2216 TripleAliases.append(begin(AArch64Triples), end(AArch64Triples));
2217 BiarchLibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
2218 BiarchTripleAliases.append(begin(AArch64Triples), end(AArch64Triples));
2219 break;
2220 case llvm::Triple::aarch64_be:
2221 LibDirs.append(begin(AArch64beLibDirs), end(AArch64beLibDirs));
2222 TripleAliases.append(begin(AArch64beTriples), end(AArch64beTriples));
2223 BiarchLibDirs.append(begin(AArch64beLibDirs), end(AArch64beLibDirs));
2224 BiarchTripleAliases.append(begin(AArch64beTriples), end(AArch64beTriples));
2225 break;
2226 case llvm::Triple::arm:
2227 case llvm::Triple::thumb:
2228 LibDirs.append(begin(ARMLibDirs), end(ARMLibDirs));
2229 if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF) {
2230 TripleAliases.append(begin(ARMHFTriples), end(ARMHFTriples));
2231 } else {
2232 TripleAliases.append(begin(ARMTriples), end(ARMTriples));
2233 }
2234 break;
2235 case llvm::Triple::armeb:
2236 case llvm::Triple::thumbeb:
2237 LibDirs.append(begin(ARMebLibDirs), end(ARMebLibDirs));
2238 if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF) {
2239 TripleAliases.append(begin(ARMebHFTriples), end(ARMebHFTriples));
2240 } else {
2241 TripleAliases.append(begin(ARMebTriples), end(ARMebTriples));
2242 }
2243 break;
2244 case llvm::Triple::avr:
2245 LibDirs.append(begin(AVRLibDirs), end(AVRLibDirs));
2246 TripleAliases.append(begin(AVRTriples), end(AVRTriples));
2247 break;
2248 case llvm::Triple::x86_64:
2249 LibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2250 TripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
2251 // x32 is always available when x86_64 is available, so adding it as
2252 // secondary arch with x86_64 triples
2253 if (TargetTriple.getEnvironment() == llvm::Triple::GNUX32) {
2254 BiarchLibDirs.append(begin(X32LibDirs), end(X32LibDirs));
2255 BiarchTripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
2256 } else {
2257 BiarchLibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2258 BiarchTripleAliases.append(begin(X86Triples), end(X86Triples));
2259 }
2260 break;
2261 case llvm::Triple::x86:
2262 LibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2263 // MCU toolchain is 32 bit only and its triple alias is TargetTriple
2264 // itself, which will be appended below.
2265 if (!TargetTriple.isOSIAMCU()) {
2266 TripleAliases.append(begin(X86Triples), end(X86Triples));
2267 BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2268 BiarchTripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
2269 }
2270 break;
2271 case llvm::Triple::mips:
2272 LibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs));
2273 TripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2274 BiarchLibDirs.append(begin(MIPS64LibDirs), end(MIPS64LibDirs));
2275 BiarchTripleAliases.append(begin(MIPS64Triples), end(MIPS64Triples));
2276 BiarchLibDirs.append(begin(MIPSN32LibDirs), end(MIPSN32LibDirs));
2277 BiarchTripleAliases.append(begin(MIPSN32Triples), end(MIPSN32Triples));
2278 break;
2279 case llvm::Triple::mipsel:
2280 LibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs));
2281 TripleAliases.append(begin(MIPSELTriples), end(MIPSELTriples));
2282 TripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2283 BiarchLibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs));
2284 BiarchTripleAliases.append(begin(MIPS64ELTriples), end(MIPS64ELTriples));
2285 BiarchLibDirs.append(begin(MIPSN32ELLibDirs), end(MIPSN32ELLibDirs));
2286 BiarchTripleAliases.append(begin(MIPSN32ELTriples), end(MIPSN32ELTriples));
2287 break;
2288 case llvm::Triple::mips64:
2289 LibDirs.append(begin(MIPS64LibDirs), end(MIPS64LibDirs));
2290 TripleAliases.append(begin(MIPS64Triples), end(MIPS64Triples));
2291 BiarchLibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs));
2292 BiarchTripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2293 BiarchLibDirs.append(begin(MIPSN32LibDirs), end(MIPSN32LibDirs));
2294 BiarchTripleAliases.append(begin(MIPSN32Triples), end(MIPSN32Triples));
2295 break;
2296 case llvm::Triple::mips64el:
2297 LibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs));
2298 TripleAliases.append(begin(MIPS64ELTriples), end(MIPS64ELTriples));
2299 BiarchLibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs));
2300 BiarchTripleAliases.append(begin(MIPSELTriples), end(MIPSELTriples));
2301 BiarchLibDirs.append(begin(MIPSN32ELLibDirs), end(MIPSN32ELLibDirs));
2302 BiarchTripleAliases.append(begin(MIPSN32ELTriples), end(MIPSN32ELTriples));
2303 BiarchTripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2304 break;
2305 case llvm::Triple::msp430:
2306 LibDirs.append(begin(MSP430LibDirs), end(MSP430LibDirs));
2307 TripleAliases.append(begin(MSP430Triples), end(MSP430Triples));
2308 break;
2309 case llvm::Triple::ppc:
2310 LibDirs.append(begin(PPCLibDirs), end(PPCLibDirs));
2311 TripleAliases.append(begin(PPCTriples), end(PPCTriples));
2312 BiarchLibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs));
2313 BiarchTripleAliases.append(begin(PPC64Triples), end(PPC64Triples));
2314 break;
2315 case llvm::Triple::ppc64:
2316 LibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs));
2317 TripleAliases.append(begin(PPC64Triples), end(PPC64Triples));
2318 BiarchLibDirs.append(begin(PPCLibDirs), end(PPCLibDirs));
2319 BiarchTripleAliases.append(begin(PPCTriples), end(PPCTriples));
2320 break;
2321 case llvm::Triple::ppc64le:
2322 LibDirs.append(begin(PPC64LELibDirs), end(PPC64LELibDirs));
2323 TripleAliases.append(begin(PPC64LETriples), end(PPC64LETriples));
2324 break;
2325 case llvm::Triple::riscv32:
2326 LibDirs.append(begin(RISCV32LibDirs), end(RISCV32LibDirs));
2327 TripleAliases.append(begin(RISCV32Triples), end(RISCV32Triples));
2328 BiarchLibDirs.append(begin(RISCV64LibDirs), end(RISCV64LibDirs));
2329 BiarchTripleAliases.append(begin(RISCV64Triples), end(RISCV64Triples));
2330 break;
2331 case llvm::Triple::riscv64:
2332 LibDirs.append(begin(RISCV64LibDirs), end(RISCV64LibDirs));
2333 TripleAliases.append(begin(RISCV64Triples), end(RISCV64Triples));
2334 BiarchLibDirs.append(begin(RISCV32LibDirs), end(RISCV32LibDirs));
2335 BiarchTripleAliases.append(begin(RISCV32Triples), end(RISCV32Triples));
2336 break;
2337 case llvm::Triple::sparc:
2338 case llvm::Triple::sparcel:
2339 LibDirs.append(begin(SPARCv8LibDirs), end(SPARCv8LibDirs));
2340 TripleAliases.append(begin(SPARCv8Triples), end(SPARCv8Triples));
2341 BiarchLibDirs.append(begin(SPARCv9LibDirs), end(SPARCv9LibDirs));
2342 BiarchTripleAliases.append(begin(SPARCv9Triples), end(SPARCv9Triples));
2343 break;
2344 case llvm::Triple::sparcv9:
2345 LibDirs.append(begin(SPARCv9LibDirs), end(SPARCv9LibDirs));
2346 TripleAliases.append(begin(SPARCv9Triples), end(SPARCv9Triples));
2347 BiarchLibDirs.append(begin(SPARCv8LibDirs), end(SPARCv8LibDirs));
2348 BiarchTripleAliases.append(begin(SPARCv8Triples), end(SPARCv8Triples));
2349 break;
2350 case llvm::Triple::systemz:
2351 LibDirs.append(begin(SystemZLibDirs), end(SystemZLibDirs));
2352 TripleAliases.append(begin(SystemZTriples), end(SystemZTriples));
2353 break;
2354 default:
2355 // By default, just rely on the standard lib directories and the original
2356 // triple.
2357 break;
2358 }
2359
2360 // Always append the drivers target triple to the end, in case it doesn't
2361 // match any of our aliases.
2362 TripleAliases.push_back(TargetTriple.str());
2363
2364 // Also include the multiarch variant if it's different.
2365 if (TargetTriple.str() != BiarchTriple.str())
2366 BiarchTripleAliases.push_back(BiarchTriple.str());
2367 }
2368
2369 bool Generic_GCC::GCCInstallationDetector::ScanGCCForMultilibs(
2370 const llvm::Triple &TargetTriple, const ArgList &Args,
2371 StringRef Path, bool NeedsBiarchSuffix) {
2372 llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
2373 DetectedMultilibs Detected;
2374
2375 // Android standalone toolchain could have multilibs for ARM and Thumb.
2376 // Debian mips multilibs behave more like the rest of the biarch ones,
2377 // so handle them there
2378 if (isArmOrThumbArch(TargetArch) && TargetTriple.isAndroid()) {
2379 // It should also work without multilibs in a simplified toolchain.
2380 findAndroidArmMultilibs(D, TargetTriple, Path, Args, Detected);
2381 } else if (TargetTriple.isMIPS()) {
2382 if (!findMIPSMultilibs(D, TargetTriple, Path, Args, Detected))
2383 return false;
2384 } else if (TargetTriple.isRISCV()) {
2385 findRISCVMultilibs(D, TargetTriple, Path, Args, Detected);
2386 } else if (isMSP430(TargetArch)) {
2387 findMSP430Multilibs(D, TargetTriple, Path, Args, Detected);
2388 } else if (TargetArch == llvm::Triple::avr) {
2389 // AVR has no multilibs.
2390 } else if (!findBiarchMultilibs(D, TargetTriple, Path, Args,
2391 NeedsBiarchSuffix, Detected)) {
2392 return false;
2393 }
2394
2395 Multilibs = Detected.Multilibs;
2396 SelectedMultilib = Detected.SelectedMultilib;
2397 BiarchSibling = Detected.BiarchSibling;
2398
2399 return true;
2400 }
2401
2402 void Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple(
2403 const llvm::Triple &TargetTriple, const ArgList &Args,
2404 const std::string &LibDir, StringRef CandidateTriple,
2405 bool NeedsBiarchSuffix) {
2406 llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
2407 // Locations relative to the system lib directory where GCC's triple-specific
2408 // directories might reside.
2409 struct GCCLibSuffix {
2410 // Path from system lib directory to GCC triple-specific directory.
2411 std::string LibSuffix;
2412 // Path from GCC triple-specific directory back to system lib directory.
2413 // This is one '..' component per component in LibSuffix.
2414 StringRef ReversePath;
2415 // Whether this library suffix is relevant for the triple.
2416 bool Active;
2417 } Suffixes[] = {
2418 // This is the normal place.
2419 {"gcc/" + CandidateTriple.str(), "../..", true},
2420
2421 // Debian puts cross-compilers in gcc-cross.
2422 {"gcc-cross/" + CandidateTriple.str(), "../..",
2423 TargetTriple.getOS() != llvm::Triple::Solaris},
2424
2425 // The Freescale PPC SDK has the gcc libraries in
2426 // <sysroot>/usr/lib/<triple>/x.y.z so have a look there as well. Only do
2427 // this on Freescale triples, though, since some systems put a *lot* of
2428 // files in that location, not just GCC installation data.
2429 {CandidateTriple.str(), "..",
2430 TargetTriple.getVendor() == llvm::Triple::Freescale ||
2431 TargetTriple.getVendor() == llvm::Triple::OpenEmbedded},
2432
2433 // Natively multiarch systems sometimes put the GCC triple-specific
2434 // directory within their multiarch lib directory, resulting in the
2435 // triple appearing twice.
2436 {CandidateTriple.str() + "/gcc/" + CandidateTriple.str(), "../../..",
2437 TargetTriple.getOS() != llvm::Triple::Solaris},
2438
2439 // Deal with cases (on Ubuntu) where the system architecture could be i386
2440 // but the GCC target architecture could be (say) i686.
2441 // FIXME: It may be worthwhile to generalize this and look for a second
2442 // triple.
2443 {"i386-linux-gnu/gcc/" + CandidateTriple.str(), "../../..",
2444 (TargetArch == llvm::Triple::x86 &&
2445 TargetTriple.getOS() != llvm::Triple::Solaris)},
2446 {"i386-gnu/gcc/" + CandidateTriple.str(), "../../..",
2447 (TargetArch == llvm::Triple::x86 &&
2448 TargetTriple.getOS() != llvm::Triple::Solaris)}};
2449
2450 for (auto &Suffix : Suffixes) {
2451 if (!Suffix.Active)
2452 continue;
2453
2454 StringRef LibSuffix = Suffix.LibSuffix;
2455 std::error_code EC;
2456 for (llvm::vfs::directory_iterator
2457 LI = D.getVFS().dir_begin(LibDir + "/" + LibSuffix, EC),
2458 LE;
2459 !EC && LI != LE; LI = LI.increment(EC)) {
2460 StringRef VersionText = llvm::sys::path::filename(LI->path());
2461 GCCVersion CandidateVersion = GCCVersion::Parse(VersionText);
2462 if (CandidateVersion.Major != -1) // Filter obviously bad entries.
2463 if (!CandidateGCCInstallPaths.insert(LI->path()).second)
2464 continue; // Saw this path before; no need to look at it again.
2465 if (CandidateVersion.isOlderThan(4, 1, 1))
2466 continue;
2467 if (CandidateVersion <= Version)
2468 continue;
2469
2470 if (!ScanGCCForMultilibs(TargetTriple, Args, LI->path(),
2471 NeedsBiarchSuffix))
2472 continue;
2473
2474 Version = CandidateVersion;
2475 GCCTriple.setTriple(CandidateTriple);
2476 // FIXME: We hack together the directory name here instead of
2477 // using LI to ensure stable path separators across Windows and
2478 // Linux.
2479 GCCInstallPath = (LibDir + "/" + LibSuffix + "/" + VersionText).str();
2480 GCCParentLibPath = (GCCInstallPath + "/../" + Suffix.ReversePath).str();
2481 IsValid = true;
2482 }
2483 }
2484 }
2485
2486 bool Generic_GCC::GCCInstallationDetector::ScanGentooConfigs(
2487 const llvm::Triple &TargetTriple, const ArgList &Args,
2488 const SmallVectorImpl<StringRef> &CandidateTriples,
2489 const SmallVectorImpl<StringRef> &CandidateBiarchTriples) {
2490 for (StringRef CandidateTriple : CandidateTriples) {
2491 if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple))
2492 return true;
2493 }
2494
2495 for (StringRef CandidateTriple : CandidateBiarchTriples) {
2496 if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple, true))
2497 return true;
2498 }
2499 return false;
2500 }
2501
2502 bool Generic_GCC::GCCInstallationDetector::ScanGentooGccConfig(
2503 const llvm::Triple &TargetTriple, const ArgList &Args,
2504 StringRef CandidateTriple, bool NeedsBiarchSuffix) {
2505 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> File =
2506 D.getVFS().getBufferForFile(D.SysRoot + "/etc/env.d/gcc/config-" +
2507 CandidateTriple.str());
2508 if (File) {
2509 SmallVector<StringRef, 2> Lines;
2510 File.get()->getBuffer().split(Lines, "\n");
2511 for (StringRef Line : Lines) {
2512 Line = Line.trim();
2513 // CURRENT=triple-version
2514 if (!Line.consume_front("CURRENT="))
2515 continue;
2516 // Process the config file pointed to by CURRENT.
2517 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> ConfigFile =
2518 D.getVFS().getBufferForFile(D.SysRoot + "/etc/env.d/gcc/" +
2519 Line.str());
2520 std::pair<StringRef, StringRef> ActiveVersion = Line.rsplit('-');
2521 // List of paths to scan for libraries.
2522 SmallVector<StringRef, 4> GentooScanPaths;
2523 // Scan the Config file to find installed GCC libraries path.
2524 // Typical content of the GCC config file:
2525 // LDPATH="/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.x:/usr/lib/gcc/
2526 // (continued from previous line) x86_64-pc-linux-gnu/4.9.x/32"
2527 // MANPATH="/usr/share/gcc-data/x86_64-pc-linux-gnu/4.9.x/man"
2528 // INFOPATH="/usr/share/gcc-data/x86_64-pc-linux-gnu/4.9.x/info"
2529 // STDCXX_INCDIR="/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.x/include/g++-v4"
2530 // We are looking for the paths listed in LDPATH=... .
2531 if (ConfigFile) {
2532 SmallVector<StringRef, 2> ConfigLines;
2533 ConfigFile.get()->getBuffer().split(ConfigLines, "\n");
2534 for (StringRef ConfLine : ConfigLines) {
2535 ConfLine = ConfLine.trim();
2536 if (ConfLine.consume_front("LDPATH=")) {
2537 // Drop '"' from front and back if present.
2538 ConfLine.consume_back("\"");
2539 ConfLine.consume_front("\"");
2540 // Get all paths sperated by ':'
2541 ConfLine.split(GentooScanPaths, ':', -1, /*AllowEmpty*/ false);
2542 }
2543 }
2544 }
2545 // Test the path based on the version in /etc/env.d/gcc/config-{tuple}.
2546 std::string basePath = "/usr/lib/gcc/" + ActiveVersion.first.str() + "/"
2547 + ActiveVersion.second.str();
2548 GentooScanPaths.push_back(StringRef(basePath));
2549
2550 // Scan all paths for GCC libraries.
2551 for (const auto &GentooScanPath : GentooScanPaths) {
2552 std::string GentooPath = D.SysRoot + std::string(GentooScanPath);
2553 if (D.getVFS().exists(GentooPath + "/crtbegin.o")) {
2554 if (!ScanGCCForMultilibs(TargetTriple, Args, GentooPath,
2555 NeedsBiarchSuffix))
2556 continue;
2557
2558 Version = GCCVersion::Parse(ActiveVersion.second);
2559 GCCInstallPath = GentooPath;
2560 GCCParentLibPath = GentooPath + std::string("/../../..");
2561 GCCTriple.setTriple(ActiveVersion.first);
2562 IsValid = true;
2563 return true;
2564 }
2565 }
2566 }
2567 }
2568
2569 return false;
2570 }
2571
2572 Generic_GCC::Generic_GCC(const Driver &D, const llvm::Triple &Triple,
2573 const ArgList &Args)
2574 : ToolChain(D, Triple, Args), GCCInstallation(D),
2575 CudaInstallation(D, Triple, Args) {
2576 getProgramPaths().push_back(getDriver().getInstalledDir());
2577 if (getDriver().getInstalledDir() != getDriver().Dir)
2578 getProgramPaths().push_back(getDriver().Dir);
2579 }
2580
2581 Generic_GCC::~Generic_GCC() {}
2582
2583 Tool *Generic_GCC::getTool(Action::ActionClass AC) const {
2584 switch (AC) {
2585 case Action::PreprocessJobClass:
2586 if (!Preprocess)
2587 Preprocess.reset(new clang::driver::tools::gcc::Preprocessor(*this));
2588 return Preprocess.get();
2589 case Action::CompileJobClass:
2590 if (!Compile)
2591 Compile.reset(new tools::gcc::Compiler(*this));
2592 return Compile.get();
2593 default:
2594 return ToolChain::getTool(AC);
2595 }
2596 }
2597
2598 Tool *Generic_GCC::buildAssembler() const {
2599 return new tools::gnutools::Assembler(*this);
2600 }
2601
2602 Tool *Generic_GCC::buildLinker() const { return new tools::gcc::Linker(*this); }
2603
2604 void Generic_GCC::printVerboseInfo(raw_ostream &OS) const {
2605 // Print the information about how we detected the GCC installation.
2606 GCCInstallation.print(OS);
2607 CudaInstallation.print(OS);
2608 }
2609
2610 bool Generic_GCC::IsUnwindTablesDefault(const ArgList &Args) const {
2611 return getArch() == llvm::Triple::x86_64;
2612 }
2613
2614 bool Generic_GCC::isPICDefault() const {
2615 switch (getArch()) {
2616 case llvm::Triple::x86_64:
2617 return getTriple().isOSWindows();
2618 case llvm::Triple::mips64:
2619 case llvm::Triple::mips64el:
2620 return true;
2621 default:
2622 return false;
2623 }
2624 }
2625
2626 bool Generic_GCC::isPIEDefault() const { return false; }
2627
2628 bool Generic_GCC::isPICDefaultForced() const {
2629 return getArch() == llvm::Triple::x86_64 && getTriple().isOSWindows();
2630 }
2631
2632 bool Generic_GCC::IsIntegratedAssemblerDefault() const {
2633 switch (getTriple().getArch()) {
2634 case llvm::Triple::x86:
2635 case llvm::Triple::x86_64:
2636 case llvm::Triple::aarch64:
2637 case llvm::Triple::aarch64_be:
2638 case llvm::Triple::arm:
2639 case llvm::Triple::armeb:
2640 case llvm::Triple::avr:
2641 case llvm::Triple::bpfel:
2642 case llvm::Triple::bpfeb:
2643 case llvm::Triple::thumb:
2644 case llvm::Triple::thumbeb:
2645 case llvm::Triple::ppc:
2646 case llvm::Triple::ppc64:
2647 case llvm::Triple::ppc64le:
2648 case llvm::Triple::riscv32:
2649 case llvm::Triple::riscv64:
2650 case llvm::Triple::systemz:
2651 case llvm::Triple::mips:
2652 case llvm::Triple::mipsel:
2653 case llvm::Triple::mips64:
2654 case llvm::Triple::mips64el:
2655 case llvm::Triple::msp430:
2656 return true;
2657 case llvm::Triple::sparc:
2658 case llvm::Triple::sparcel:
2659 case llvm::Triple::sparcv9:
2660 if (getTriple().isOSFreeBSD() || getTriple().isOSOpenBSD() ||
2661 getTriple().isOSSolaris())
2662 return true;
2663 return false;
2664 default:
2665 return false;
2666 }
2667 }
2668
2669 void Generic_GCC::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
2670 ArgStringList &CC1Args) const {
2671 if (DriverArgs.hasArg(options::OPT_nostdlibinc) ||
2672 DriverArgs.hasArg(options::OPT_nostdincxx))
2673 return;
2674
2675 switch (GetCXXStdlibType(DriverArgs)) {
2676 case ToolChain::CST_Libcxx:
2677 addLibCxxIncludePaths(DriverArgs, CC1Args);
2678 break;
2679
2680 case ToolChain::CST_Libstdcxx:
2681 addLibStdCxxIncludePaths(DriverArgs, CC1Args);
2682 break;
2683 }
2684 }
2685
2686 static std::string DetectLibcxxIncludePath(llvm::vfs::FileSystem &vfs,
2687 StringRef base) {
2688 std::error_code EC;
2689 int MaxVersion = 0;
2690 std::string MaxVersionString;
2691 for (llvm::vfs::directory_iterator LI = vfs.dir_begin(base, EC), LE;
2692 !EC && LI != LE; LI = LI.increment(EC)) {
2693 StringRef VersionText = llvm::sys::path::filename(LI->path());
2694 int Version;
2695 if (VersionText[0] == 'v' &&
2696 !VersionText.slice(1, StringRef::npos).getAsInteger(10, Version)) {
2697 if (Version > MaxVersion) {
2698 MaxVersion = Version;
2699 MaxVersionString = VersionText;
2700 }
2701 }
2702 }
2703 return MaxVersion ? (base + "/" + MaxVersionString).str() : "";
2704 }
2705
2706 void
2707 Generic_GCC::addLibCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
2708 llvm::opt::ArgStringList &CC1Args) const {
2709 const std::string& SysRoot = getDriver().SysRoot;
2710 auto AddIncludePath = [&](std::string Path) {
2711 std::string IncludePath = DetectLibcxxIncludePath(getVFS(), Path);
2712 if (IncludePath.empty() || !getVFS().exists(IncludePath))
2713 return false;
2714 addSystemInclude(DriverArgs, CC1Args, IncludePath);
2715 return true;
2716 };
2717 // Android never uses the libc++ headers installed alongside the toolchain,
2718 // which are generally incompatible with the NDK libraries anyway.
2719 if (!getTriple().isAndroid())
2720 if (AddIncludePath(getDriver().Dir + "/../include/c++"))
2721 return;
2722 // If this is a development, non-installed, clang, libcxx will
2723 // not be found at ../include/c++ but it likely to be found at
2724 // one of the following two locations:
2725 if (AddIncludePath(SysRoot + "/usr/local/include/c++"))
2726 return;
2727 if (AddIncludePath(SysRoot + "/usr/include/c++"))
2728 return;
2729 }
2730
2731 /// Helper to add the variant paths of a libstdc++ installation.
2732 bool Generic_GCC::addLibStdCXXIncludePaths(
2733 Twine Base, Twine Suffix, StringRef GCCTriple, StringRef GCCMultiarchTriple,
2734 StringRef TargetMultiarchTriple, Twine IncludeSuffix,
2735 const ArgList &DriverArgs, ArgStringList &CC1Args) const {
2736 if (!getVFS().exists(Base + Suffix))
2737 return false;
2738
2739 addSystemInclude(DriverArgs, CC1Args, Base + Suffix);
2740
2741 // The vanilla GCC layout of libstdc++ headers uses a triple subdirectory. If
2742 // that path exists or we have neither a GCC nor target multiarch triple, use
2743 // this vanilla search path.
2744 if ((GCCMultiarchTriple.empty() && TargetMultiarchTriple.empty()) ||
2745 getVFS().exists(Base + Suffix + "/" + GCCTriple + IncludeSuffix)) {
2746 addSystemInclude(DriverArgs, CC1Args,
2747 Base + Suffix + "/" + GCCTriple + IncludeSuffix);
2748 } else {
2749 // Otherwise try to use multiarch naming schemes which have normalized the
2750 // triples and put the triple before the suffix.
2751 //
2752 // GCC surprisingly uses *both* the GCC triple with a multilib suffix and
2753 // the target triple, so we support that here.
2754 addSystemInclude(DriverArgs, CC1Args,
2755 Base + "/" + GCCMultiarchTriple + Suffix + IncludeSuffix);
2756 addSystemInclude(DriverArgs, CC1Args,
2757 Base + "/" + TargetMultiarchTriple + Suffix);
2758 }
2759
2760 addSystemInclude(DriverArgs, CC1Args, Base + Suffix + "/backward");
2761 return true;
2762 }
2763
2764 bool
2765 Generic_GCC::addGCCLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
2766 llvm::opt::ArgStringList &CC1Args) const {
2767 // Use GCCInstallation to know where libstdc++ headers are installed.
2768 if (!GCCInstallation.isValid())
2769 return false;
2770
2771 // By default, look for the C++ headers in an include directory adjacent to
2772 // the lib directory of the GCC installation. Note that this is expect to be
2773 // equivalent to '/usr/include/c++/X.Y' in almost all cases.
2774 StringRef LibDir = GCCInstallation.getParentLibPath();
2775 StringRef InstallDir = GCCInstallation.getInstallPath();
2776 StringRef TripleStr = GCCInstallation.getTriple().str();
2777 const Multilib &Multilib = GCCInstallation.getMultilib();
2778 const std::string GCCMultiarchTriple = getMultiarchTriple(
2779 getDriver(), GCCInstallation.getTriple(), getDriver().SysRoot);
2780 const std::string TargetMultiarchTriple =
2781 getMultiarchTriple(getDriver(), getTriple(), getDriver().SysRoot);
2782 const GCCVersion &Version = GCCInstallation.getVersion();
2783
2784 // The primary search for libstdc++ supports multiarch variants.
2785 if (addLibStdCXXIncludePaths(LibDir.str() + "/../include",
2786 "/c++/" + Version.Text, TripleStr,
2787 GCCMultiarchTriple, TargetMultiarchTriple,
2788 Multilib.includeSuffix(), DriverArgs, CC1Args))
2789 return true;
2790
2791 // Otherwise, fall back on a bunch of options which don't use multiarch
2792 // layouts for simplicity.
2793 const std::string LibStdCXXIncludePathCandidates[] = {
2794 // Gentoo is weird and places its headers inside the GCC install,
2795 // so if the first attempt to find the headers fails, try these patterns.
2796 InstallDir.str() + "/include/g++-v" + Version.Text,
2797 InstallDir.str() + "/include/g++-v" + Version.MajorStr + "." +
2798 Version.MinorStr,
2799 InstallDir.str() + "/include/g++-v" + Version.MajorStr,
2800 };
2801
2802 for (const auto &IncludePath : LibStdCXXIncludePathCandidates) {
2803 if (addLibStdCXXIncludePaths(IncludePath, /*Suffix*/ "", TripleStr,
2804 /*GCCMultiarchTriple*/ "",
2805 /*TargetMultiarchTriple*/ "",
2806 Multilib.includeSuffix(), DriverArgs, CC1Args))
2807 return true;
2808 }
2809 return false;
2810 }
2811
2812 void
2813 Generic_GCC::addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
2814 llvm::opt::ArgStringList &CC1Args) const {
2815 addGCCLibStdCxxIncludePaths(DriverArgs, CC1Args);
2816 }
2817
2818 llvm::opt::DerivedArgList *
2819 Generic_GCC::TranslateArgs(const llvm::opt::DerivedArgList &Args, StringRef,
2820 Action::OffloadKind DeviceOffloadKind) const {
2821
2822 // If this tool chain is used for an OpenMP offloading device we have to make
2823 // sure we always generate a shared library regardless of the commands the
2824 // user passed to the host. This is required because the runtime library
2825 // is required to load the device image dynamically at run time.
2826 if (DeviceOffloadKind == Action::OFK_OpenMP) {
2827 DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs());
2828 const OptTable &Opts = getDriver().getOpts();
2829
2830 // Request the shared library. Given that these options are decided
2831 // implicitly, they do not refer to any base argument.
2832 DAL->AddFlagArg(/*BaseArg=*/nullptr, Opts.getOption(options::OPT_shared));
2833 DAL->AddFlagArg(/*BaseArg=*/nullptr, Opts.getOption(options::OPT_fPIC));
2834
2835 // Filter all the arguments we don't care passing to the offloading
2836 // toolchain as they can mess up with the creation of a shared library.
2837 for (auto *A : Args) {
2838 switch ((options::ID)A->getOption().getID()) {
2839 default:
2840 DAL->append(A);
2841 break;
2842 case options::OPT_shared:
2843 case options::OPT_dynamic:
2844 case options::OPT_static:
2845 case options::OPT_fPIC:
2846 case options::OPT_fno_PIC:
2847 case options::OPT_fpic:
2848 case options::OPT_fno_pic:
2849 case options::OPT_fPIE:
2850 case options::OPT_fno_PIE:
2851 case options::OPT_fpie:
2852 case options::OPT_fno_pie:
2853 break;
2854 }
2855 }
2856 return DAL;
2857 }
2858 return nullptr;
2859 }
2860
2861 void Generic_ELF::anchor() {}
2862
2863 void Generic_ELF::addClangTargetOptions(const ArgList &DriverArgs,
2864 ArgStringList &CC1Args,
2865 Action::OffloadKind) const {
2866 if (!DriverArgs.hasFlag(options::OPT_fuse_init_array,
2867 options::OPT_fno_use_init_array, true))
2868 CC1Args.push_back("-fno-use-init-array");
2869 }
clang::driver::tools::ppc::getPPCAsmModeForCPU
const char * getPPCAsmModeForCPU(StringRef Name)
Definition: PPC.cpp:92
clang::driver::MultilibSet::Either
MultilibSet & Either(const Multilib &M1, const Multilib &M2)
Add a set of mutually incompatible Multilib segments.
Definition: Multilib.cpp:152
clang::driver::MultilibSet::Maybe
MultilibSet & Maybe(const Multilib &M)
Add an optional Multilib segment.
Definition: Multilib.cpp:142
IsStatic
bool IsStatic
Definition: Format.cpp:1837
clang::driver::toolchains::Linux::isNoExecStackDefault
bool isNoExecStackDefault() const override
Test whether this toolchaind defaults to non-executable stacks.
Definition: Linux.cpp:924
clang::driver::toolchains::Linux::isPIEDefault
bool isPIEDefault() const override
Test whether this toolchain defaults to PIE.
Definition: Linux.cpp:919
clang::driver::toolchains::Linux::getDynamicLinker
virtual std::string getDynamicLinker(const llvm::opt::ArgList &Args) const
Definition: Linux.cpp:510
findRISCVBareMetalMultilibs
static void findRISCVBareMetalMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, DetectedMultilibs &Result)
Definition: Gnu.cpp:1519
clang::driver::toolchains::Generic_GCC::buildLinker
Tool * buildLinker() const override
Definition: Gnu.cpp:2602
clang::driver::tools::addXRayRuntime
bool addXRayRuntime(const ToolChain &TC, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs)
clang::driver::toolchains::Generic_GCC::~Generic_GCC
~Generic_GCC() override
Definition: Gnu.cpp:2581
clang::driver::Driver::PrefixDirs
prefix_list PrefixDirs
Definition: Driver.h:145
clang::driver::tools::sparc::getSparcAsmModeForCPU
const char * getSparcAsmModeForCPU(llvm::StringRef Name, const llvm::Triple &Triple)
getPIE
static bool getPIE(const ArgList &Args, const toolchains::Linux &ToolChain)
Definition: Gnu.cpp:312
clang::driver::tools::mips::shouldUseFPXX
bool shouldUseFPXX(const llvm::opt::ArgList &Args, const llvm::Triple &Triple, StringRef CPUName, StringRef ABIName, mips::FloatABI FloatABI)
clang::driver::Multilib::isDefault
bool isDefault() const
Check whether the default is selected.
Definition: Multilib.h:106
clang::driver::toolchains::Generic_GCC::getTool
Tool * getTool(Action::ActionClass AC) const override
Definition: Gnu.cpp:2583
Base
clang::CudaVersion::UNKNOWN
clang::driver::Action::OFK_OpenMP
Definition: Action.h:92
Tool.h
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getBiarchSibling
bool getBiarchSibling(Multilib &M) const
Get the biarch sibling multilib (if it exists).
Definition: Gnu.cpp:1935
findMipsAndroidMultilibs
static bool findMipsAndroidMultilibs(llvm::vfs::FileSystem &VFS, StringRef Path, const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition: Gnu.cpp:1048
clang::driver::DetectedMultilibs::BiarchSibling
llvm::Optional< Multilib > BiarchSibling
On Biarch systems, this corresponds to the default multilib when targeting the non-default multilib...
Definition: Gnu.h:29
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getTriple
const llvm::Triple & getTriple() const
Get the GCC triple for the detected install.
Definition: Gnu.h:219
P
StringRef P
Definition: ASTMatchersInternal.cpp:485
clang::driver::Driver::isUsingLTO
bool isUsingLTO() const
Returns true if we are performing any kind of LTO.
Definition: Driver.h:554
clang::driver::Action::CompileJobClass
Definition: Action.h:64
clang::driver::toolchains::Generic_GCC::GCCVersion::Parse
static GCCVersion Parse(StringRef VersionText)
Parse a GCCVersion object out of a string of text.
Definition: Gnu.cpp:1756
clang::driver::Driver::DyldPrefix
std::string DyldPrefix
Dynamic loader prefix, if present.
Definition: Driver.h:151
clang::driver::types::canTypeBeUserSpecified
bool canTypeBeUserSpecified(ID Id)
canTypeBeUserSpecified - Can this type be specified on the command line (by the type name); this is u...
Definition: Types.cpp:95
clang::driver::tools::AddRunTimeLibs
void AddRunTimeLibs(const ToolChain &TC, const Driver &D, llvm::opt::ArgStringList &CmdArgs, const llvm::opt::ArgList &Args)
clang::driver::tools::AddHIPLinkerScript
void AddHIPLinkerScript(const ToolChain &TC, Compilation &C, const InputInfo &Output, const InputInfoList &Inputs, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs, const JobAction &JA, const Tool &T)
clang::driver::Action::isHostOffloading
bool isHostOffloading(OffloadKind OKind) const
Check if this action have any offload kinds.
Definition: Action.h:203
clang::driver::Driver::getLTOMode
LTOKind getLTOMode() const
Get the specific kind of LTO being performed.
Definition: Driver.h:557
clang::driver::Driver::Diag
DiagnosticBuilder Diag(unsigned DiagID) const
Definition: Driver.h:109
Value
Value
Definition: UninitializedValues.cpp:101
clang::driver::toolchains::Generic_GCC::GCCVersion
Struct to store and manipulate GCC versions.
Definition: Gnu.h:156
clang::driver::tools::gcc::Linker::RenderExtraToolArgs
void RenderExtraToolArgs(const JobAction &JA, llvm::opt::ArgStringList &CmdArgs) const override
RenderExtraToolArgs - Render any arguments necessary to force the particular tool mode...
Definition: Gnu.cpp:228
clang::driver::ToolChain::GetLinkerPath
std::string GetLinkerPath() const
Returns the linker path, respecting the -fuse-ld= argument to determine the linker suffix or name...
Definition: ToolChain.cpp:520
clang::driver::tools::arm::getARMFloatABI
FloatABI getARMFloatABI(const ToolChain &TC, const llvm::opt::ArgList &Args)
clang::driver::toolchains::Generic_GCC::GCCVersion::PatchSuffix
std::string PatchSuffix
Any textual suffix on the patch number.
Definition: Gnu.h:167
clang::driver::toolchains::Generic_GCC::isPIEDefault
bool isPIEDefault() const override
Test whether this toolchain defaults to PIE.
Definition: Gnu.cpp:2626
clang::driver::MultilibSet::select
bool select(const Multilib::flags_list &Flags, Multilib &M) const
Pick the best multilib in the set,.
Definition: Multilib.cpp:244
clang::driver::CudaInstallationDetector::print
void print(raw_ostream &OS) const
Print information about the detected CUDA installation.
Definition: Cuda.cpp:263
clang::driver::tools::addOpenMPRuntime
bool addOpenMPRuntime(llvm::opt::ArgStringList &CmdArgs, const ToolChain &TC, const llvm::opt::ArgList &Args, bool ForceStaticHostRuntime=false, bool IsOffloadingHost=false, bool GompNeedsRT=false)
Returns true, if an OpenMP runtime has been added.
clang::driver::Multilib::flag
Multilib & flag(StringRef F)
Add a flag to the flags list Flag must be a flag accepted by the driver with its leading &#39;-&#39; removed...
Definition: Multilib.h:92
clang::driver::tools::getCPUName
std::string getCPUName(const llvm::opt::ArgList &Args, const llvm::Triple &T, bool FromAs=false)
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::print
void print(raw_ostream &OS) const
Print information about the detected GCC installation.
Definition: Gnu.cpp:1921
clang::driver::InputInfo::getFilename
const char * getFilename() const
Definition: InputInfo.h:83
clang::driver::tools::gcc::Preprocessor::RenderExtraToolArgs
void RenderExtraToolArgs(const JobAction &JA, llvm::opt::ArgStringList &CmdArgs) const override
RenderExtraToolArgs - Render any arguments necessary to force the particular tool mode...
Definition: Gnu.cpp:195
clang::driver::toolchains::Generic_GCC::GCCInstallation
GCCInstallationDetector GCCInstallation
Definition: Gnu.h:279
clang::driver::ToolChain::getProgramPaths
path_list & getProgramPaths()
Definition: ToolChain.h:240
CommonArgs.h
makeMultilib
static Multilib makeMultilib(StringRef commonSuffix)
Definition: Gnu.cpp:953
clang::driver::tools::linkSanitizerRuntimeDeps
void linkSanitizerRuntimeDeps(const ToolChain &TC, llvm::opt::ArgStringList &CmdArgs)
clang::driver::JobAction
Definition: Action.h:375
clang::driver::Multilib::includeSuffix
const std::string & includeSuffix() const
Get the include directory suffix.
Definition: Multilib.h:67
clang::driver::toolchains::Generic_GCC::addGCCLibStdCxxIncludePaths
bool addGCCLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Definition: Gnu.cpp:2765
clang::driver::tools::AddGoldPlugin
void AddGoldPlugin(const ToolChain &ToolChain, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs, const InputInfo &Output, const InputInfo &Input, bool IsThinLTO)
clang::driver::ToolChain::CST_Libcxx
Definition: ToolChain.h:93
PPC.h
clang::driver::Multilib::gccSuffix
const std::string & gccSuffix() const
Get the detected GCC installation path suffix for the multi-arch target variant.
Definition: Multilib.h:45
DetectLibcxxIncludePath
static std::string DetectLibcxxIncludePath(llvm::vfs::FileSystem &vfs, StringRef base)
Definition: Gnu.cpp:2686
llvm::SmallVectorImpl
Definition: LLVM.h:36
clang::driver::Action::ActionClass
ActionClass
Definition: Action.h:55
clang::driver::tools::addSanitizerRuntimes
bool addSanitizerRuntimes(const ToolChain &TC, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs)
clang::driver::tools::mips::isNaN2008
bool isNaN2008(const llvm::opt::ArgList &Args, const llvm::Triple &Triple)
clang::driver::tools::addMultilibFlag
void addMultilibFlag(bool Enabled, const char *const Flag, Multilib::flags_list &Flags)
Flag must be a flag accepted by the driver with its leading &#39;-&#39; removed,
Definition: CommonArgs.cpp:1398
clang::driver::tools::systemz::getSystemZTargetCPU
std::string getSystemZTargetCPU(const llvm::opt::ArgList &Args)
clang::driver::tools::riscv::getRISCVArch
StringRef getRISCVArch(const llvm::opt::ArgList &Args, const llvm::Triple &Triple)
Definition: RISCV.cpp:520
Sparc.h
clang::driver::Multilib::osSuffix
const std::string & osSuffix() const
Get the detected os path suffix for the multi-arch target variant.
Definition: Multilib.h:56
clang::ComparisonCategoryType::First
clang::driver::InputInfo
InputInfo - Wrapper for information about an input source.
Definition: InputInfo.h:22
isMipsEL
static bool isMipsEL(llvm::Triple::ArchType Arch)
Definition: Gnu.cpp:935
clang::driver::MultilibSet::setIncludeDirsCallback
MultilibSet & setIncludeDirsCallback(IncludeDirsFunc F)
Definition: Multilib.h:174
clang::driver::ToolChain::GetFilePath
std::string GetFilePath(const char *Name) const
Definition: ToolChain.cpp:512
clang::driver::Action::getType
types::ID getType() const
Definition: Action.h:142
clang::driver::MultilibSet
Definition: Multilib.h:114
clang::driver::ToolChain::AddFastMathRuntimeIfAvailable
virtual 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:918
clang::driver::Driver
Driver - Encapsulate logic for constructing compilation processes from a set of gcc-driver-like comma...
Definition: Driver.h:59
clang::driver::tools::mips::hasMipsAbiArg
bool hasMipsAbiArg(const llvm::opt::ArgList &Args, const char *Value)
ARM.h
clang::driver::tools::SplitDebugName
const char * SplitDebugName(const llvm::opt::ArgList &Args, const InputInfo &Input, const InputInfo &Output)
llvm::ArrayRef
Definition: LLVM.h:31
clang::driver::tools::gcc::Compiler::RenderExtraToolArgs
void RenderExtraToolArgs(const JobAction &JA, llvm::opt::ArgStringList &CmdArgs) const override
RenderExtraToolArgs - Render any arguments necessary to force the particular tool mode...
Definition: Gnu.cpp:200
Driver.h
RISCV.h
clang::driver::tools::gnutools::Linker::ConstructJob
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: Gnu.cpp:344
Compilation.h
clang::driver::Driver::getVFS
llvm::vfs::FileSystem & getVFS() const
Definition: Driver.h:319
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getVersion
const GCCVersion & getVersion() const
Get the detected GCC version string.
Definition: Gnu.h:238
clang::driver::tools::linkXRayRuntimeDeps
void linkXRayRuntimeDeps(const ToolChain &TC, llvm::opt::ArgStringList &CmdArgs)
isMips16
static bool isMips16(const ArgList &Args)
Definition: Gnu.cpp:939
clang::driver::tools::riscv::getRISCVABI
StringRef getRISCVABI(const llvm::opt::ArgList &Args, const llvm::Triple &Triple)
clang::driver::toolchains::Generic_GCC::CudaInstallation
CudaInstallationDetector CudaInstallation
Definition: Gnu.h:280
isSoftFloatABI
static bool isSoftFloatABI(const ArgList &Args)
Definition: Gnu.cpp:920
clang::driver::tools::gcc::Preprocessor
Definition: Gnu.h:98
clang::driver::tools::gcc::Linker
Definition: Gnu.h:121
clang::driver::toolchains::Generic_GCC::AddClangCXXStdlibIncludeArgs
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: Gnu.cpp:2669
clang::driver::types::getTypeName
const char * getTypeName(ID Id)
getTypeName - Return the name of the type for Id.
Definition: Types.cpp:43
llvm::opt
Definition: Action.h:23
clang::driver::toolchains::Linux
Definition: Linux.h:19
Line
const AnnotatedLine * Line
Definition: UsingDeclarationsSorter.cpp:68
findMipsMuslMultilibs
static bool findMipsMuslMultilibs(const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition: Gnu.cpp:1087
Linux.h
normalizeCPUNamesForAssembler
static void normalizeCPUNamesForAssembler(const ArgList &Args, ArgStringList &CmdArgs)
Definition: Gnu.cpp:51
clang::driver::toolchains::Generic_GCC::isPICDefault
bool isPICDefault() const override
Test whether this toolchain defaults to PIC.
Definition: Gnu.cpp:2614
clang::driver::options::LinkerInput
Definition: Options.h:28
clang::driver::Action::PreprocessJobClass
Definition: Action.h:59
clang::driver::toolchains::Generic_GCC::GCCVersion::Minor
int Minor
Definition: Gnu.h:161
clang::driver::Multilib::flags_list
std::vector< std::string > flags_list
Definition: Multilib.h:30
clang::driver::MultilibSet::push_back
void push_back(const Multilib &M)
Add a completed Multilib to the set.
Definition: Multilib.cpp:232
clang::driver::MultilibSet::size
unsigned size() const
Definition: Multilib.h:169
clang::driver::Compilation::addCommand
void addCommand(std::unique_ptr< Command > C)
Definition: Compilation.h:205
clang::driver::Multilib
This corresponds to a single GCC Multilib, or a segment of one controlled by a command line flag...
Definition: Multilib.h:28
findMipsMtiMultilibs
static bool findMipsMtiMultilibs(const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition: Gnu.cpp:1119
clang::driver::toolchains::Generic_GCC::buildAssembler
Tool * buildAssembler() const override
Definition: Gnu.cpp:2598
clang::driver::tools::ParsePICArgs
std::tuple< llvm::Reloc::Model, unsigned, bool > ParsePICArgs(const ToolChain &ToolChain, const llvm::opt::ArgList &Args)
forwardToGCC
static bool forwardToGCC(const Option &O)
Definition: Gnu.cpp:41
clang::driver::toolchains::Generic_GCC::IsUnwindTablesDefault
bool IsUnwindTablesDefault(const llvm::opt::ArgList &Args) const override
IsUnwindTablesDefault - Does this tool chain use -funwind-tables by default.
Definition: Gnu.cpp:2610
getLDMOption
static const char * getLDMOption(const llvm::Triple &T, const ArgList &Args)
Definition: Gnu.cpp:257
clang::driver::tools::AddAssemblerKPIC
void AddAssemblerKPIC(const ToolChain &ToolChain, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs)
clang::driver::ToolChain::getArch
llvm::Triple::ArchType getArch() const
Definition: ToolChain.h:215
clang::driver::ToolChain::getCompilerRT
virtual std::string getCompilerRT(const llvm::opt::ArgList &Args, StringRef Component, FileType Type=ToolChain::FT_Static) const
Definition: ToolChain.cpp:391
clang::driver::toolchains::Generic_GCC::printVerboseInfo
void printVerboseInfo(raw_ostream &OS) const override
Dispatch to the specific toolchain for verbose printing.
Definition: Gnu.cpp:2604
clang::driver::ToolChain::FT_Object
Definition: ToolChain.h:113
findMipsImgMultilibs
static bool findMipsImgMultilibs(const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition: Gnu.cpp:1291
clang::driver::ToolChain::AddFilePathLibArgs
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:906
clang::driver::tools::gcc::Common::ConstructJob
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: Gnu.cpp:64
getGCCToolchainDir
static llvm::StringRef getGCCToolchainDir(const ArgList &Args, llvm::StringRef SysRoot)
Definition: Gnu.cpp:1803
clang::driver::DetectedMultilibs
Definition: Gnu.h:20
clang::driver::ToolChain::getDriver
const Driver & getDriver() const
Definition: ToolChain.h:199
clang::driver::toolchains::Generic_GCC::GCCVersion::Patch
int Patch
Definition: Gnu.h:161
clang::driver::toolchains::Generic_GCC::addLibCxxIncludePaths
virtual void addLibCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Definition: Gnu.cpp:2707
clang::driver::Driver::InstalledDir
std::string InstalledDir
The path to the installed clang directory, if any.
Definition: Driver.h:129
clang::driver::tools::mips::isUCLibc
bool isUCLibc(const llvm::opt::ArgList &Args)
clang::driver::Driver::CCCIsCXX
bool CCCIsCXX() const
Whether the driver should follow g++ like behavior.
Definition: Driver.h:173
ToolChain.h
findMSP430Multilibs
static bool findMSP430Multilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, DetectedMultilibs &Result)
Definition: Gnu.cpp:1499
llvm::SmallVector
Definition: LLVM.h:35
clang::driver::ToolChain::addSystemInclude
static void addSystemInclude(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, const Twine &Path)
Utility function to add a system include directory to CC1 arguments.
Definition: ToolChain.cpp:820
Options.h
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getParentLibPath
StringRef getParentLibPath() const
Get the detected GCC parent lib path.
Definition: Gnu.h:225
clang::driver::tools::SplitDebugInfo
void SplitDebugInfo(const ToolChain &TC, Compilation &C, const Tool &T, const JobAction &JA, const llvm::opt::ArgList &Args, const InputInfo &Output, const char *OutFile)
isArmOrThumbArch
static bool isArmOrThumbArch(llvm::Triple::ArchType Arch)
Definition: Gnu.cpp:931
clang::driver::ToolChain::GetRuntimeLibType
virtual RuntimeLibType GetRuntimeLibType(const llvm::opt::ArgList &Args) const
Definition: ToolChain.cpp:755
clang::driver::ToolChain::getVFS
llvm::vfs::FileSystem & getVFS() const
Definition: ToolChain.cpp:99
clang::driver::tools::gnutools::Assembler::ConstructJob
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: Gnu.cpp:634
Gnu.h
clang::driver::toolchains::Generic_GCC::GCCVersion::isOlderThan
bool isOlderThan(int RHSMajor, int RHSMinor, int RHSPatch, StringRef RHSPatchSuffix=StringRef()) const
Generic_GCC - A tool chain using the &#39;gcc&#39; command to perform all subcommands; this relies on gcc tra...
Definition: Gnu.cpp:1719
clang::driver::ToolChain::RLT_CompilerRT
Definition: ToolChain.h:98
clang::driver::MultilibSet::setFilePathsCallback
MultilibSet & setFilePathsCallback(IncludeDirsFunc F)
Definition: Multilib.h:181
findBiarchMultilibs
static bool findBiarchMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, bool NeedsBiarchSuffix, DetectedMultilibs &Result)
Definition: Gnu.cpp:1610
clang::driver::Action::OffloadKind
OffloadKind
Definition: Action.h:84
clang::driver::toolchains::Generic_GCC::isPICDefaultForced
bool isPICDefaultForced() const override
Tests whether this toolchain forces its default for PIC, PIE or non-PIC.
Definition: Gnu.cpp:2628
clang::driver::ToolChain::ShouldLinkCXXStdlib
bool ShouldLinkCXXStdlib(const llvm::opt::ArgList &Args) const
Returns if the C++ standard library should be linked in.
Definition: ToolChain.cpp:883
clang
Dataflow Directional Tag Classes.
Definition: CFGReachabilityAnalysis.h:21
Mips.h
clang::driver::toolchains::Generic_GCC::Generic_GCC
Generic_GCC(const Driver &D, const llvm::Triple &Triple, const llvm::opt::ArgList &Args)
Definition: Gnu.cpp:2572
clang::driver::options::DriverOption
Definition: Options.h:27
clang::driver::LTOK_Thin
Definition: Driver.h:53
clang::StructuralEquivalenceKind::Default
clang::driver::toolchains::Generic_GCC::getMultiarchTriple
virtual std::string getMultiarchTriple(const Driver &D, const llvm::Triple &TargetTriple, StringRef SysRoot) const
Definition: Gnu.h:303
isMSP430
static bool isMSP430(llvm::Triple::ArchType Arch)
Definition: Gnu.cpp:949
clang::driver::Driver::getCCCGenericGCCName
const std::string & getCCCGenericGCCName() const
Name to use when invoking gcc/g++.
Definition: Driver.h:311
clang::driver::tools::AddLinkerInputs
void AddLinkerInputs(const ToolChain &TC, const InputInfoList &Inputs, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs, const JobAction &JA)
clang::driver::Driver::SysRoot
std::string SysRoot
sysroot, if present
Definition: Driver.h:148
clang::driver::Tool
Tool - Information on a specific compilation tool.
Definition: Tool.h:33
SystemZ.h
clang::driver::toolchains::Generic_ELF::addClangTargetOptions
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: Gnu.cpp:2863
findMipsCsMultilibs
static bool findMipsCsMultilibs(const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition: Gnu.cpp:957
clang::driver::toolchains::Generic_GCC::IsIntegratedAssemblerDefault
bool IsIntegratedAssemblerDefault() const override
IsIntegratedAssemblerDefault - Does this tool chain enable -integrated-as by default.
Definition: Gnu.cpp:2632
clang::driver::tools::claimNoWarnArgs
void claimNoWarnArgs(const llvm::opt::ArgList &Args)
clang::driver::tools::gcc::Compiler
Definition: Gnu.h:110
clang::driver::toolchains::Generic_GCC::GCCVersion::MajorStr
std::string MajorStr
The text of the parsed major, and major+minor versions.
Definition: Gnu.h:164
isArmBigEndian
static bool isArmBigEndian(const llvm::Triple &Triple, const ArgList &Args)
Definition: Gnu.cpp:237
clang::driver::toolchains::Generic_GCC::GCCVersion::Text
std::string Text
The unparsed text of the version.
Definition: Gnu.h:158
clang::driver::toolchains::Generic_GCC::TranslateArgs
llvm::opt::DerivedArgList * TranslateArgs(const llvm::opt::DerivedArgList &Args, StringRef BoundArch, Action::OffloadKind DeviceOffloadKind) const override
TranslateArgs - Create a new derived argument list for any argument translations this ToolChain may w...
Definition: Gnu.cpp:2819
clang::driver::Compilation
Compilation - A set of tasks to perform for a single driver invocation.
Definition: Compilation.h:45
clang::driver::ToolChain::getTriple
const llvm::Triple & getTriple() const
Definition: ToolChain.h:201
clang::driver::toolchains::Generic_GCC::addLibStdCxxIncludePaths
virtual void addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Definition: Gnu.cpp:2813
clang::driver
Definition: Action.h:31
clang::driver::ToolChain::getTool
virtual Tool * getTool(Action::ActionClass AC) const
Definition: ToolChain.cpp:309
DriverDiagnostic.h
clang::driver::findMIPSMultilibs
bool findMIPSMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const llvm::opt::ArgList &Args, DetectedMultilibs &Result)
clang::driver::tools::arm::appendBE8LinkFlag
void appendBE8LinkFlag(const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs, const llvm::Triple &Triple)
clang::driver::tools::mips::getGnuCompatibleMipsABIName
StringRef getGnuCompatibleMipsABIName(StringRef ABI)
Definition: Mips.cpp:143
clang::driver::toolchains
Definition: AIX.h:55
clang::driver::InputInfo::isNothing
bool isNothing() const
Definition: InputInfo.h:74
clang::driver::toolchains::Generic_GCC::GCCVersion::MinorStr
std::string MinorStr
Definition: Gnu.h:164
clang::driver::MultilibSet::FilterOut
MultilibSet & FilterOut(FilterCallback F)
Filter out some subset of the Multilibs using a user defined callback.
Definition: Multilib.cpp:212
clang::interp::LE
bool LE(InterpState &S, CodePtr OpPC)
Definition: Interp.h:237
clang::driver::options::ID
ID
Definition: Options.h:39
clang::driver::InputInfo::isFilename
bool isFilename() const
Definition: InputInfo.h:75
getStatic
static bool getStatic(const ArgList &Args)
Definition: Gnu.cpp:339
clang::driver::Driver::getOpts
const llvm::opt::OptTable & getOpts() const
Definition: Driver.h:315
clang::driver::ToolChain::GetCXXStdlibType
virtual CXXStdlibType GetCXXStdlibType(const llvm::opt::ArgList &Args) const
Definition: ToolChain.cpp:801
Suffixes
static constexpr CPUSuffix Suffixes[]
Definition: Hexagon.cpp:150
clang::driver::toolchains::Generic_GCC::addLibStdCXXIncludePaths
bool addLibStdCXXIncludePaths(Twine Base, Twine Suffix, StringRef GCCTriple, StringRef GCCMultiarchTriple, StringRef TargetMultiarchTriple, Twine IncludeSuffix, const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Helper to add the variant paths of a libstdc++ installation.
Definition: Gnu.cpp:2732
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::init
void init(const llvm::Triple &TargetTriple, const llvm::opt::ArgList &Args, ArrayRef< std::string > ExtraTripleAliases=None)
Initialize a GCCInstallationDetector from the driver.
Definition: Gnu.cpp:1827
clang::driver::tools::mips::getMipsCPUAndABI
void getMipsCPUAndABI(const llvm::opt::ArgList &Args, const llvm::Triple &Triple, StringRef &CPUName, StringRef &ABIName)
clang::driver::DetectedMultilibs::Multilibs
MultilibSet Multilibs
The set of multilibs that the detected installation supports.
Definition: Gnu.h:22
clang::driver::toolchains::Linux::ExtraOpts
std::vector< std::string > ExtraOpts
Definition: Linux.h:47
isMicroMips
static bool isMicroMips(const ArgList &Args)
Definition: Gnu.cpp:944
clang::driver::types::isLLVMIR
bool isLLVMIR(ID Id)
Is this LLVM IR.
Definition: Types.cpp:178
clang::driver::toolchains::Generic_GCC::GCCVersion::Major
int Major
The parsed major, minor, and patch numbers.
Definition: Gnu.h:161
clang::driver::ToolChain::CST_Libstdcxx
Definition: ToolChain.h:94
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getInstallPath
StringRef getInstallPath() const
Get the detected GCC installation path.
Definition: Gnu.h:222
findAndroidArmMultilibs
static void findAndroidArmMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, DetectedMultilibs &Result)
Definition: Gnu.cpp:1457
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getMultilib
const Multilib & getMultilib() const
Get the detected Multilib.
Definition: Gnu.h:228
findRISCVMultilibs
static void findRISCVMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, DetectedMultilibs &Result)
Definition: Gnu.cpp:1573
clang::driver::ToolChain::AddCXXStdlibLibArgs
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:889
clang::driver::tools::gnutools::Assembler
Definition: Gnu.h:50
clang::driver::DetectedMultilibs::SelectedMultilib
Multilib SelectedMultilib
The primary multilib appropriate for the given flags.
Definition: Gnu.h:25
clang::driver::ToolChain
ToolChain - Access to tools for a single platform.
Definition: ToolChain.h:88
getStaticPIE
static bool getStaticPIE(const ArgList &Args, const toolchains::Linux &ToolChain)
Definition: Gnu.cpp:324
clang::driver::tools::mips::getMipsFloatABI
mips::FloatABI getMipsFloatABI(const Driver &D, const llvm::opt::ArgList &Args, const llvm::Triple &Triple)
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::isValid
bool isValid() const
Check whether we detected a valid GCC install.
Definition: Gnu.h:216