clang 17.0.0git
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/CSKY.h"
12#include "Arch/LoongArch.h"
13#include "Arch/Mips.h"
14#include "Arch/PPC.h"
15#include "Arch/RISCV.h"
16#include "Arch/Sparc.h"
17#include "Arch/SystemZ.h"
18#include "CommonArgs.h"
19#include "Linux.h"
20#include "clang/Config/config.h" // for GCC_INSTALL_PREFIX
21#include "clang/Driver/Compilation.h"
22#include "clang/Driver/Driver.h"
23#include "clang/Driver/DriverDiagnostic.h"
24#include "clang/Driver/MultilibBuilder.h"
25#include "clang/Driver/Options.h"
26#include "clang/Driver/Tool.h"
27#include "clang/Driver/ToolChain.h"
28#include "llvm/ADT/StringSet.h"
29#include "llvm/ADT/Twine.h"
30#include "llvm/Option/ArgList.h"
31#include "llvm/Support/CodeGen.h"
32#include "llvm/Support/Path.h"
33#include "llvm/Support/VirtualFileSystem.h"
34#include "llvm/TargetParser/TargetParser.h"
35#include <system_error>
36
37using namespace clang::driver;
38using namespace clang::driver::toolchains;
39using namespace clang;
40using namespace llvm::opt;
41
42using tools::addMultilibFlag;
43using tools::addPathIfExists;
44
45static bool forwardToGCC(const Option &O) {
46 // LinkerInput options have been forwarded. Don't duplicate.
47 if (O.hasFlag(options::LinkerInput))
48 return false;
49 return O.matches(options::OPT_Link_Group) || O.hasFlag(options::LinkOption);
50}
51
52// Switch CPU names not recognized by GNU assembler to a close CPU that it does
53// recognize, instead of a lower march from being picked in the absence of a cpu
54// flag.
55static void normalizeCPUNamesForAssembler(const ArgList &Args,
56 ArgStringList &CmdArgs) {
57 if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) {
58 StringRef CPUArg(A->getValue());
59 if (CPUArg.equals_insensitive("krait"))
60 CmdArgs.push_back("-mcpu=cortex-a15");
61 else if (CPUArg.equals_insensitive("kryo"))
62 CmdArgs.push_back("-mcpu=cortex-a57");
63 else
64 Args.AddLastArg(CmdArgs, options::OPT_mcpu_EQ);
65 }
66}
67
68void tools::gcc::Common::ConstructJob(Compilation &C, const JobAction &JA,
69 const InputInfo &Output,
70 const InputInfoList &Inputs,
71 const ArgList &Args,
72 const char *LinkingOutput) const {
73 const Driver &D = getToolChain().getDriver();
74 ArgStringList CmdArgs;
75
76 for (const auto &A : Args) {
77 if (forwardToGCC(A->getOption())) {
78 // It is unfortunate that we have to claim here, as this means
79 // we will basically never report anything interesting for
80 // platforms using a generic gcc, even if we are just using gcc
81 // to get to the assembler.
82 A->claim();
83
84 A->render(Args, CmdArgs);
85 }
86 }
87
88 RenderExtraToolArgs(JA, CmdArgs);
89
90 // If using a driver, force the arch.
91 if (getToolChain().getTriple().isOSDarwin()) {
92 CmdArgs.push_back("-arch");
93 CmdArgs.push_back(
94 Args.MakeArgString(getToolChain().getDefaultUniversalArchName()));
95 }
96
97 // Try to force gcc to match the tool chain we want, if we recognize
98 // the arch.
99 //
100 // FIXME: The triple class should directly provide the information we want
101 // here.
102 switch (getToolChain().getArch()) {
103 default:
104 break;
105 case llvm::Triple::x86:
106 case llvm::Triple::ppc:
107 case llvm::Triple::ppcle:
108 CmdArgs.push_back("-m32");
109 break;
110 case llvm::Triple::x86_64:
111 case llvm::Triple::ppc64:
112 case llvm::Triple::ppc64le:
113 CmdArgs.push_back("-m64");
114 break;
115 case llvm::Triple::sparcel:
116 CmdArgs.push_back("-EL");
117 break;
118 }
119
120 if (Output.isFilename()) {
121 CmdArgs.push_back("-o");
122 CmdArgs.push_back(Output.getFilename());
123 } else {
124 assert(Output.isNothing() && "Unexpected output");
125 CmdArgs.push_back("-fsyntax-only");
126 }
127
128 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
129
130 // Only pass -x if gcc will understand it; otherwise hope gcc
131 // understands the suffix correctly. The main use case this would go
132 // wrong in is for linker inputs if they happened to have an odd
133 // suffix; really the only way to get this to happen is a command
134 // like '-x foobar a.c' which will treat a.c like a linker input.
135 //
136 // FIXME: For the linker case specifically, can we safely convert
137 // inputs into '-Wl,' options?
138 for (const auto &II : Inputs) {
139 // Don't try to pass LLVM or AST inputs to a generic gcc.
140 if (types::isLLVMIR(II.getType()))
141 D.Diag(clang::diag::err_drv_no_linker_llvm_support)
142 << getToolChain().getTripleString();
143 else if (II.getType() == types::TY_AST)
144 D.Diag(diag::err_drv_no_ast_support) << getToolChain().getTripleString();
145 else if (II.getType() == types::TY_ModuleFile)
146 D.Diag(diag::err_drv_no_module_support)
147 << getToolChain().getTripleString();
148
149 if (types::canTypeBeUserSpecified(II.getType())) {
150 CmdArgs.push_back("-x");
151 CmdArgs.push_back(types::getTypeName(II.getType()));
152 }
153
154 if (II.isFilename())
155 CmdArgs.push_back(II.getFilename());
156 else {
157 const Arg &A = II.getInputArg();
158
159 // Reverse translate some rewritten options.
160 if (A.getOption().matches(options::OPT_Z_reserved_lib_stdcxx)) {
161 CmdArgs.push_back("-lstdc++");
162 continue;
163 }
164
165 // Don't render as input, we need gcc to do the translations.
166 A.render(Args, CmdArgs);
167 }
168 }
169
170 const std::string &customGCCName = D.getCCCGenericGCCName();
171 const char *GCCName;
172 if (!customGCCName.empty())
173 GCCName = customGCCName.c_str();
174 else if (D.CCCIsCXX()) {
175 GCCName = "g++";
176 } else
177 GCCName = "gcc";
178
179 const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath(GCCName));
180 C.addCommand(std::make_unique<Command>(JA, *this,
181 ResponseFileSupport::AtFileCurCP(),
182 Exec, CmdArgs, Inputs, Output));
183}
184
185void tools::gcc::Preprocessor::RenderExtraToolArgs(
186 const JobAction &JA, ArgStringList &CmdArgs) const {
187 CmdArgs.push_back("-E");
188}
189
190void tools::gcc::Compiler::RenderExtraToolArgs(const JobAction &JA,
191 ArgStringList &CmdArgs) const {
192 const Driver &D = getToolChain().getDriver();
193
194 switch (JA.getType()) {
195 // If -flto, etc. are present then make sure not to force assembly output.
196 case types::TY_LLVM_IR:
197 case types::TY_LTO_IR:
198 case types::TY_LLVM_BC:
199 case types::TY_LTO_BC:
200 CmdArgs.push_back("-c");
201 break;
202 // We assume we've got an "integrated" assembler in that gcc will produce an
203 // object file itself.
204 case types::TY_Object:
205 CmdArgs.push_back("-c");
206 break;
207 case types::TY_PP_Asm:
208 CmdArgs.push_back("-S");
209 break;
210 case types::TY_Nothing:
211 CmdArgs.push_back("-fsyntax-only");
212 break;
213 default:
214 D.Diag(diag::err_drv_invalid_gcc_output_type) << getTypeName(JA.getType());
215 }
216}
217
218void tools::gcc::Linker::RenderExtraToolArgs(const JobAction &JA,
219 ArgStringList &CmdArgs) const {
220 // The types are (hopefully) good enough.
221}
222
223// On Arm the endianness of the output file is determined by the target and
224// can be overridden by the pseudo-target flags '-mlittle-endian'/'-EL' and
225// '-mbig-endian'/'-EB'. Unlike other targets the flag does not result in a
226// normalized triple so we must handle the flag here.
227static bool isArmBigEndian(const llvm::Triple &Triple,
228 const ArgList &Args) {
229 bool IsBigEndian = false;
230 switch (Triple.getArch()) {
231 case llvm::Triple::armeb:
232 case llvm::Triple::thumbeb:
233 IsBigEndian = true;
234 [[fallthrough]];
235 case llvm::Triple::arm:
236 case llvm::Triple::thumb:
237 if (Arg *A = Args.getLastArg(options::OPT_mlittle_endian,
238 options::OPT_mbig_endian))
239 IsBigEndian = !A->getOption().matches(options::OPT_mlittle_endian);
240 break;
241 default:
242 break;
243 }
244 return IsBigEndian;
245}
246
247static const char *getLDMOption(const llvm::Triple &T, const ArgList &Args) {
248 switch (T.getArch()) {
249 case llvm::Triple::x86:
250 if (T.isOSIAMCU())
251 return "elf_iamcu";
252 return "elf_i386";
253 case llvm::Triple::aarch64:
254 return "aarch64linux";
255 case llvm::Triple::aarch64_be:
256 return "aarch64linuxb";
257 case llvm::Triple::arm:
258 case llvm::Triple::thumb:
259 case llvm::Triple::armeb:
260 case llvm::Triple::thumbeb:
261 return isArmBigEndian(T, Args) ? "armelfb_linux_eabi" : "armelf_linux_eabi";
262 case llvm::Triple::m68k:
263 return "m68kelf";
264 case llvm::Triple::ppc:
265 if (T.isOSLinux())
266 return "elf32ppclinux";
267 return "elf32ppc";
268 case llvm::Triple::ppcle:
269 if (T.isOSLinux())
270 return "elf32lppclinux";
271 return "elf32lppc";
272 case llvm::Triple::ppc64:
273 return "elf64ppc";
274 case llvm::Triple::ppc64le:
275 return "elf64lppc";
276 case llvm::Triple::riscv32:
277 return "elf32lriscv";
278 case llvm::Triple::riscv64:
279 return "elf64lriscv";
280 case llvm::Triple::sparc:
281 case llvm::Triple::sparcel:
282 return "elf32_sparc";
283 case llvm::Triple::sparcv9:
284 return "elf64_sparc";
285 case llvm::Triple::loongarch32:
286 return "elf32loongarch";
287 case llvm::Triple::loongarch64:
288 return "elf64loongarch";
289 case llvm::Triple::mips:
290 return "elf32btsmip";
291 case llvm::Triple::mipsel:
292 return "elf32ltsmip";
293 case llvm::Triple::mips64:
294 if (tools::mips::hasMipsAbiArg(Args, "n32") ||
295 T.getEnvironment() == llvm::Triple::GNUABIN32)
296 return "elf32btsmipn32";
297 return "elf64btsmip";
298 case llvm::Triple::mips64el:
299 if (tools::mips::hasMipsAbiArg(Args, "n32") ||
300 T.getEnvironment() == llvm::Triple::GNUABIN32)
301 return "elf32ltsmipn32";
302 return "elf64ltsmip";
303 case llvm::Triple::systemz:
304 return "elf64_s390";
305 case llvm::Triple::x86_64:
306 if (T.isX32())
307 return "elf32_x86_64";
308 return "elf_x86_64";
309 case llvm::Triple::ve:
310 return "elf64ve";
311 case llvm::Triple::csky:
312 return "cskyelf_linux";
313 default:
314 return nullptr;
315 }
316}
317
318static bool getPIE(const ArgList &Args, const ToolChain &TC) {
319 if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_static) ||
320 Args.hasArg(options::OPT_r) || Args.hasArg(options::OPT_static_pie))
321 return false;
322
323 Arg *A = Args.getLastArg(options::OPT_pie, options::OPT_no_pie,
324 options::OPT_nopie);
325 if (!A)
326 return TC.isPIEDefault(Args);
327 return A->getOption().matches(options::OPT_pie);
328}
329
330static bool getStaticPIE(const ArgList &Args, const ToolChain &TC) {
331 bool HasStaticPIE = Args.hasArg(options::OPT_static_pie);
332 // -no-pie is an alias for -nopie. So, handling -nopie takes care of
333 // -no-pie as well.
334 if (HasStaticPIE && Args.hasArg(options::OPT_nopie)) {
335 const Driver &D = TC.getDriver();
336 const llvm::opt::OptTable &Opts = D.getOpts();
337 StringRef StaticPIEName = Opts.getOptionName(options::OPT_static_pie);
338 StringRef NoPIEName = Opts.getOptionName(options::OPT_nopie);
339 D.Diag(diag::err_drv_cannot_mix_options) << StaticPIEName << NoPIEName;
340 }
341 return HasStaticPIE;
342}
343
344static bool getStatic(const ArgList &Args) {
345 return Args.hasArg(options::OPT_static) &&
346 !Args.hasArg(options::OPT_static_pie);
347}
348
349void tools::gnutools::StaticLibTool::ConstructJob(
350 Compilation &C, const JobAction &JA, const InputInfo &Output,
351 const InputInfoList &Inputs, const ArgList &Args,
352 const char *LinkingOutput) const {
353 const Driver &D = getToolChain().getDriver();
354
355 // Silence warning for "clang -g foo.o -o foo"
356 Args.ClaimAllArgs(options::OPT_g_Group);
357 // and "clang -emit-llvm foo.o -o foo"
358 Args.ClaimAllArgs(options::OPT_emit_llvm);
359 // and for "clang -w foo.o -o foo". Other warning options are already
360 // handled somewhere else.
361 Args.ClaimAllArgs(options::OPT_w);
362 // Silence warnings when linking C code with a C++ '-stdlib' argument.
363 Args.ClaimAllArgs(options::OPT_stdlib_EQ);
364
365 // ar tool command "llvm-ar <options> <output_file> <input_files>".
366 ArgStringList CmdArgs;
367 // Create and insert file members with a deterministic index.
368 CmdArgs.push_back("rcsD");
369 CmdArgs.push_back(Output.getFilename());
370
371 for (const auto &II : Inputs) {
372 if (II.isFilename()) {
373 CmdArgs.push_back(II.getFilename());
374 }
375 }
376
377 // Delete old output archive file if it already exists before generating a new
378 // archive file.
379 auto OutputFileName = Output.getFilename();
380 if (Output.isFilename() && llvm::sys::fs::exists(OutputFileName)) {
381 if (std::error_code EC = llvm::sys::fs::remove(OutputFileName)) {
382 D.Diag(diag::err_drv_unable_to_remove_file) << EC.message();
383 return;
384 }
385 }
386
387 const char *Exec = Args.MakeArgString(getToolChain().GetStaticLibToolPath());
388 C.addCommand(std::make_unique<Command>(JA, *this,
389 ResponseFileSupport::AtFileCurCP(),
390 Exec, CmdArgs, Inputs, Output));
391}
392
393void tools::gnutools::Linker::ConstructJob(Compilation &C, const JobAction &JA,
394 const InputInfo &Output,
395 const InputInfoList &Inputs,
396 const ArgList &Args,
397 const char *LinkingOutput) const {
398 // FIXME: The Linker class constructor takes a ToolChain and not a
399 // Generic_ELF, so the static_cast might return a reference to a invalid
400 // instance (see PR45061). Ideally, the Linker constructor needs to take a
401 // Generic_ELF instead.
402 const toolchains::Generic_ELF &ToolChain =
403 static_cast<const toolchains::Generic_ELF &>(getToolChain());
404 const Driver &D = ToolChain.getDriver();
405
406 const llvm::Triple &Triple = getToolChain().getEffectiveTriple();
407
408 const llvm::Triple::ArchType Arch = ToolChain.getArch();
409 const bool isOHOSFamily = ToolChain.getTriple().isOHOSFamily();
410 const bool isAndroid = ToolChain.getTriple().isAndroid();
411 const bool IsIAMCU = ToolChain.getTriple().isOSIAMCU();
412 const bool IsVE = ToolChain.getTriple().isVE();
413 const bool IsPIE = getPIE(Args, ToolChain);
414 const bool IsStaticPIE = getStaticPIE(Args, ToolChain);
415 const bool IsStatic = getStatic(Args);
416 const bool HasCRTBeginEndFiles =
417 ToolChain.getTriple().hasEnvironment() ||
418 (ToolChain.getTriple().getVendor() != llvm::Triple::MipsTechnologies);
419
420 ArgStringList CmdArgs;
421
422 // Silence warning for "clang -g foo.o -o foo"
423 Args.ClaimAllArgs(options::OPT_g_Group);
424 // and "clang -emit-llvm foo.o -o foo"
425 Args.ClaimAllArgs(options::OPT_emit_llvm);
426 // and for "clang -w foo.o -o foo". Other warning options are already
427 // handled somewhere else.
428 Args.ClaimAllArgs(options::OPT_w);
429
430 if (!D.SysRoot.empty())
431 CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot));
432
433 if (IsPIE)
434 CmdArgs.push_back("-pie");
435
436 if (IsStaticPIE) {
437 CmdArgs.push_back("-static");
438 CmdArgs.push_back("-pie");
439 CmdArgs.push_back("--no-dynamic-linker");
440 CmdArgs.push_back("-z");
441 CmdArgs.push_back("text");
442 }
443
444 if (Args.hasArg(options::OPT_rdynamic))
445 CmdArgs.push_back("-export-dynamic");
446
447 if (Args.hasArg(options::OPT_s))
448 CmdArgs.push_back("-s");
449
450 if (Triple.isARM() || Triple.isThumb() || Triple.isAArch64()) {
451 bool IsBigEndian = isArmBigEndian(Triple, Args);
452 if (IsBigEndian)
453 arm::appendBE8LinkFlag(Args, CmdArgs, Triple);
454 IsBigEndian = IsBigEndian || Arch == llvm::Triple::aarch64_be;
455 CmdArgs.push_back(IsBigEndian ? "-EB" : "-EL");
456 }
457
458 // Most Android ARM64 targets should enable the linker fix for erratum
459 // 843419. Only non-Cortex-A53 devices are allowed to skip this flag.
460 if (Arch == llvm::Triple::aarch64 && (isAndroid || isOHOSFamily)) {
461 std::string CPU = getCPUName(D, Args, Triple);
462 if (CPU.empty() || CPU == "generic" || CPU == "cortex-a53")
463 CmdArgs.push_back("--fix-cortex-a53-843419");
464 }
465
466 ToolChain.addExtraOpts(CmdArgs);
467
468 CmdArgs.push_back("--eh-frame-hdr");
469
470 if (const char *LDMOption = getLDMOption(ToolChain.getTriple(), Args)) {
471 CmdArgs.push_back("-m");
472 CmdArgs.push_back(LDMOption);
473 } else {
474 D.Diag(diag::err_target_unknown_triple) << Triple.str();
475 return;
476 }
477 if (Triple.isRISCV())
478 CmdArgs.push_back("-X");
479
480 if (Args.hasArg(options::OPT_shared))
481 CmdArgs.push_back("-shared");
482
483 if (IsStatic) {
484 CmdArgs.push_back("-static");
485 } else {
486 if (Args.hasArg(options::OPT_rdynamic))
487 CmdArgs.push_back("-export-dynamic");
488
489 if (!Args.hasArg(options::OPT_shared) && !IsStaticPIE &&
490 !Args.hasArg(options::OPT_r)) {
491 CmdArgs.push_back("-dynamic-linker");
492 CmdArgs.push_back(Args.MakeArgString(Twine(D.DyldPrefix) +
493 ToolChain.getDynamicLinker(Args)));
494 }
495 }
496
497 CmdArgs.push_back("-o");
498 CmdArgs.push_back(Output.getFilename());
499
500 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles,
501 options::OPT_r)) {
502 if (!isAndroid && !IsIAMCU) {
503 const char *crt1 = nullptr;
504 if (!Args.hasArg(options::OPT_shared)) {
505 if (Args.hasArg(options::OPT_pg))
506 crt1 = "gcrt1.o";
507 else if (IsPIE)
508 crt1 = "Scrt1.o";
509 else if (IsStaticPIE)
510 crt1 = "rcrt1.o";
511 else
512 crt1 = "crt1.o";
513 }
514 if (crt1)
515 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crt1)));
516
517 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o")));
518 }
519
520 if (IsVE) {
521 CmdArgs.push_back("-z");
522 CmdArgs.push_back("max-page-size=0x4000000");
523 }
524
525 if (IsIAMCU)
526 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt0.o")));
527 else if (HasCRTBeginEndFiles) {
528 std::string P;
529 if (ToolChain.GetRuntimeLibType(Args) == ToolChain::RLT_CompilerRT &&
530 !isAndroid) {
531 std::string crtbegin = ToolChain.getCompilerRT(Args, "crtbegin",
532 ToolChain::FT_Object);
533 if (ToolChain.getVFS().exists(crtbegin))
534 P = crtbegin;
535 }
536 if (P.empty()) {
537 const char *crtbegin;
538 if (Args.hasArg(options::OPT_shared))
539 crtbegin = isAndroid ? "crtbegin_so.o" : "crtbeginS.o";
540 else if (IsStatic)
541 crtbegin = isAndroid ? "crtbegin_static.o" : "crtbeginT.o";
542 else if (IsPIE || IsStaticPIE)
543 crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbeginS.o";
544 else
545 crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbegin.o";
546 P = ToolChain.GetFilePath(crtbegin);
547 }
548 CmdArgs.push_back(Args.MakeArgString(P));
549 }
550
551 // Add crtfastmath.o if available and fast math is enabled.
552 ToolChain.addFastMathRuntimeIfAvailable(Args, CmdArgs);
553 }
554
555 Args.AddAllArgs(CmdArgs, options::OPT_L);
556 Args.AddAllArgs(CmdArgs, options::OPT_u);
557
558 ToolChain.AddFilePathLibArgs(Args, CmdArgs);
559
560 if (D.isUsingLTO()) {
561 assert(!Inputs.empty() && "Must have at least one input.");
562 addLTOOptions(ToolChain, Args, CmdArgs, Output, Inputs[0],
563 D.getLTOMode() == LTOK_Thin);
564 }
565
566 if (Args.hasArg(options::OPT_Z_Xlinker__no_demangle))
567 CmdArgs.push_back("--no-demangle");
568
569 bool NeedsSanitizerDeps = addSanitizerRuntimes(ToolChain, Args, CmdArgs);
570 bool NeedsXRayDeps = addXRayRuntime(ToolChain, Args, CmdArgs);
571 addLinkerCompressDebugSectionsOption(ToolChain, Args, CmdArgs);
572 AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA);
573
574 addHIPRuntimeLibArgs(ToolChain, Args, CmdArgs);
575
576 // The profile runtime also needs access to system libraries.
577 getToolChain().addProfileRTLibs(Args, CmdArgs);
578
579 if (D.CCCIsCXX() &&
580 !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs,
581 options::OPT_r)) {
582 if (ToolChain.ShouldLinkCXXStdlib(Args)) {
583 bool OnlyLibstdcxxStatic = Args.hasArg(options::OPT_static_libstdcxx) &&
584 !Args.hasArg(options::OPT_static);
585 if (OnlyLibstdcxxStatic)
586 CmdArgs.push_back("-Bstatic");
587 ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs);
588 if (OnlyLibstdcxxStatic)
589 CmdArgs.push_back("-Bdynamic");
590 }
591 CmdArgs.push_back("-lm");
592 }
593
594 // Silence warnings when linking C code with a C++ '-stdlib' argument.
595 Args.ClaimAllArgs(options::OPT_stdlib_EQ);
596
597 // Additional linker set-up and flags for Fortran. This is required in order
598 // to generate executables. As Fortran runtime depends on the C runtime,
599 // these dependencies need to be listed before the C runtime below (i.e.
600 // AddRuntTimeLibs).
601 if (D.IsFlangMode()) {
602 addFortranRuntimeLibraryPath(ToolChain, Args, CmdArgs);
603 addFortranRuntimeLibs(ToolChain, CmdArgs);
604 CmdArgs.push_back("-lm");
605 }
606
607 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_r)) {
608 if (!Args.hasArg(options::OPT_nodefaultlibs)) {
609 if (IsStatic || IsStaticPIE)
610 CmdArgs.push_back("--start-group");
611
612 if (NeedsSanitizerDeps)
613 linkSanitizerRuntimeDeps(ToolChain, CmdArgs);
614
615 if (NeedsXRayDeps)
616 linkXRayRuntimeDeps(ToolChain, CmdArgs);
617
618 bool WantPthread = Args.hasArg(options::OPT_pthread) ||
619 Args.hasArg(options::OPT_pthreads);
620
621 // Use the static OpenMP runtime with -static-openmp
622 bool StaticOpenMP = Args.hasArg(options::OPT_static_openmp) &&
623 !Args.hasArg(options::OPT_static);
624
625 // FIXME: Only pass GompNeedsRT = true for platforms with libgomp that
626 // require librt. Most modern Linux platforms do, but some may not.
627 if (addOpenMPRuntime(CmdArgs, ToolChain, Args, StaticOpenMP,
628 JA.isHostOffloading(Action::OFK_OpenMP),
629 /* GompNeedsRT= */ true))
630 // OpenMP runtimes implies pthreads when using the GNU toolchain.
631 // FIXME: Does this really make sense for all GNU toolchains?
632 WantPthread = true;
633
634 AddRunTimeLibs(ToolChain, D, CmdArgs, Args);
635
636 // LLVM support for atomics on 32-bit SPARC V8+ is incomplete, so
637 // forcibly link with libatomic as a workaround.
638 // TODO: Issue #41880 and D118021.
639 if (getToolChain().getTriple().getArch() == llvm::Triple::sparc) {
640 CmdArgs.push_back("--push-state");
641 CmdArgs.push_back("--as-needed");
642 CmdArgs.push_back("-latomic");
643 CmdArgs.push_back("--pop-state");
644 }
645
646 // We don't need libpthread neither for bionic (Android) nor for musl,
647 // (used by OHOS as runtime library).
648 if (WantPthread && !isAndroid && !isOHOSFamily)
649 CmdArgs.push_back("-lpthread");
650
651 if (Args.hasArg(options::OPT_fsplit_stack))
652 CmdArgs.push_back("--wrap=pthread_create");
653
654 if (!Args.hasArg(options::OPT_nolibc))
655 CmdArgs.push_back("-lc");
656
657 // Add IAMCU specific libs, if needed.
658 if (IsIAMCU)
659 CmdArgs.push_back("-lgloss");
660
661 if (IsStatic || IsStaticPIE)
662 CmdArgs.push_back("--end-group");
663 else
664 AddRunTimeLibs(ToolChain, D, CmdArgs, Args);
665
666 // Add IAMCU specific libs (outside the group), if needed.
667 if (IsIAMCU) {
668 CmdArgs.push_back("--as-needed");
669 CmdArgs.push_back("-lsoftfp");
670 CmdArgs.push_back("--no-as-needed");
671 }
672 }
673
674 if (!Args.hasArg(options::OPT_nostartfiles) && !IsIAMCU) {
675 if (HasCRTBeginEndFiles) {
676 std::string P;
677 if (ToolChain.GetRuntimeLibType(Args) == ToolChain::RLT_CompilerRT &&
678 !isAndroid) {
679 std::string crtend = ToolChain.getCompilerRT(Args, "crtend",
680 ToolChain::FT_Object);
681 if (ToolChain.getVFS().exists(crtend))
682 P = crtend;
683 }
684 if (P.empty()) {
685 const char *crtend;
686 if (Args.hasArg(options::OPT_shared))
687 crtend = isAndroid ? "crtend_so.o" : "crtendS.o";
688 else if (IsPIE || IsStaticPIE)
689 crtend = isAndroid ? "crtend_android.o" : "crtendS.o";
690 else
691 crtend = isAndroid ? "crtend_android.o" : "crtend.o";
692 P = ToolChain.GetFilePath(crtend);
693 }
694 CmdArgs.push_back(Args.MakeArgString(P));
695 }
696 if (!isAndroid)
697 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o")));
698 }
699 }
700
701 Args.AddAllArgs(CmdArgs, options::OPT_T);
702
703 const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath());
704 C.addCommand(std::make_unique<Command>(JA, *this,
705 ResponseFileSupport::AtFileCurCP(),
706 Exec, CmdArgs, Inputs, Output));
707}
708
709void tools::gnutools::Assembler::ConstructJob(Compilation &C,
710 const JobAction &JA,
711 const InputInfo &Output,
712 const InputInfoList &Inputs,
713 const ArgList &Args,
714 const char *LinkingOutput) const {
715 const auto &D = getToolChain().getDriver();
716
717 claimNoWarnArgs(Args);
718
719 ArgStringList CmdArgs;
720
721 llvm::Reloc::Model RelocationModel;
722 unsigned PICLevel;
723 bool IsPIE;
724 const char *DefaultAssembler = "as";
725 std::tie(RelocationModel, PICLevel, IsPIE) =
726 ParsePICArgs(getToolChain(), Args);
727
728 if (const Arg *A = Args.getLastArg(options::OPT_gz, options::OPT_gz_EQ)) {
729 if (A->getOption().getID() == options::OPT_gz) {
730 CmdArgs.push_back("--compress-debug-sections");
731 } else {
732 StringRef Value = A->getValue();
733 if (Value == "none" || Value == "zlib" || Value == "zstd") {
734 CmdArgs.push_back(
735 Args.MakeArgString("--compress-debug-sections=" + Twine(Value)));
736 } else {
737 D.Diag(diag::err_drv_unsupported_option_argument)
738 << A->getSpelling() << Value;
739 }
740 }
741 }
742
743 switch (getToolChain().getArch()) {
744 default:
745 break;
746 // Add --32/--64 to make sure we get the format we want.
747 // This is incomplete
748 case llvm::Triple::x86:
749 CmdArgs.push_back("--32");
750 break;
751 case llvm::Triple::x86_64:
752 if (getToolChain().getTriple().isX32())
753 CmdArgs.push_back("--x32");
754 else
755 CmdArgs.push_back("--64");
756 break;
757 case llvm::Triple::ppc: {
758 CmdArgs.push_back("-a32");
759 CmdArgs.push_back("-mppc");
760 CmdArgs.push_back("-mbig-endian");
761 CmdArgs.push_back(ppc::getPPCAsmModeForCPU(
762 getCPUName(D, Args, getToolChain().getTriple())));
763 break;
764 }
765 case llvm::Triple::ppcle: {
766 CmdArgs.push_back("-a32");
767 CmdArgs.push_back("-mppc");
768 CmdArgs.push_back("-mlittle-endian");
769 CmdArgs.push_back(ppc::getPPCAsmModeForCPU(
770 getCPUName(D, Args, getToolChain().getTriple())));
771 break;
772 }
773 case llvm::Triple::ppc64: {
774 CmdArgs.push_back("-a64");
775 CmdArgs.push_back("-mppc64");
776 CmdArgs.push_back("-mbig-endian");
777 CmdArgs.push_back(ppc::getPPCAsmModeForCPU(
778 getCPUName(D, Args, getToolChain().getTriple())));
779 break;
780 }
781 case llvm::Triple::ppc64le: {
782 CmdArgs.push_back("-a64");
783 CmdArgs.push_back("-mppc64");
784 CmdArgs.push_back("-mlittle-endian");
785 CmdArgs.push_back(ppc::getPPCAsmModeForCPU(
786 getCPUName(D, Args, getToolChain().getTriple())));
787 break;
788 }
789 case llvm::Triple::riscv32:
790 case llvm::Triple::riscv64: {
791 StringRef ABIName = riscv::getRISCVABI(Args, getToolChain().getTriple());
792 CmdArgs.push_back("-mabi");
793 CmdArgs.push_back(ABIName.data());
794 StringRef MArchName = riscv::getRISCVArch(Args, getToolChain().getTriple());
795 CmdArgs.push_back("-march");
796 CmdArgs.push_back(MArchName.data());
797 if (!Args.hasFlag(options::OPT_mrelax, options::OPT_mno_relax, true))
798 Args.addOptOutFlag(CmdArgs, options::OPT_mrelax, options::OPT_mno_relax);
799 break;
800 }
801 case llvm::Triple::sparc:
802 case llvm::Triple::sparcel: {
803 CmdArgs.push_back("-32");
804 std::string CPU = getCPUName(D, Args, getToolChain().getTriple());
805 CmdArgs.push_back(
806 sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple()));
807 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
808 break;
809 }
810 case llvm::Triple::sparcv9: {
811 CmdArgs.push_back("-64");
812 std::string CPU = getCPUName(D, Args, getToolChain().getTriple());
813 CmdArgs.push_back(
814 sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple()));
815 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
816 break;
817 }
818 case llvm::Triple::arm:
819 case llvm::Triple::armeb:
820 case llvm::Triple::thumb:
821 case llvm::Triple::thumbeb: {
822 const llvm::Triple &Triple2 = getToolChain().getTriple();
823 CmdArgs.push_back(isArmBigEndian(Triple2, Args) ? "-EB" : "-EL");
824 switch (Triple2.getSubArch()) {
825 case llvm::Triple::ARMSubArch_v7:
826 CmdArgs.push_back("-mfpu=neon");
827 break;
828 case llvm::Triple::ARMSubArch_v8:
829 CmdArgs.push_back("-mfpu=crypto-neon-fp-armv8");
830 break;
831 default:
832 break;
833 }
834
835 switch (arm::getARMFloatABI(getToolChain(), Args)) {
836 case arm::FloatABI::Invalid: llvm_unreachable("must have an ABI!");
837 case arm::FloatABI::Soft:
838 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=soft"));
839 break;
840 case arm::FloatABI::SoftFP:
841 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=softfp"));
842 break;
843 case arm::FloatABI::Hard:
844 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=hard"));
845 break;
846 }
847
848 Args.AddLastArg(CmdArgs, options::OPT_march_EQ);
849 normalizeCPUNamesForAssembler(Args, CmdArgs);
850
851 Args.AddLastArg(CmdArgs, options::OPT_mfpu_EQ);
852 break;
853 }
854 case llvm::Triple::aarch64:
855 case llvm::Triple::aarch64_be: {
856 CmdArgs.push_back(
857 getToolChain().getArch() == llvm::Triple::aarch64_be ? "-EB" : "-EL");
858 Args.AddLastArg(CmdArgs, options::OPT_march_EQ);
859 normalizeCPUNamesForAssembler(Args, CmdArgs);
860
861 break;
862 }
863 // TODO: handle loongarch32.
864 case llvm::Triple::loongarch64: {
865 StringRef ABIName =
866 loongarch::getLoongArchABI(D, Args, getToolChain().getTriple());
867 CmdArgs.push_back(Args.MakeArgString("-mabi=" + ABIName));
868 break;
869 }
870 case llvm::Triple::mips:
871 case llvm::Triple::mipsel:
872 case llvm::Triple::mips64:
873 case llvm::Triple::mips64el: {
874 StringRef CPUName;
875 StringRef ABIName;
876 mips::getMipsCPUAndABI(Args, getToolChain().getTriple(), CPUName, ABIName);
877 ABIName = mips::getGnuCompatibleMipsABIName(ABIName);
878
879 CmdArgs.push_back("-march");
880 CmdArgs.push_back(CPUName.data());
881
882 CmdArgs.push_back("-mabi");
883 CmdArgs.push_back(ABIName.data());
884
885 // -mno-shared should be emitted unless -fpic, -fpie, -fPIC, -fPIE,
886 // or -mshared (not implemented) is in effect.
887 if (RelocationModel == llvm::Reloc::Static)
888 CmdArgs.push_back("-mno-shared");
889
890 // LLVM doesn't support -mplt yet and acts as if it is always given.
891 // However, -mplt has no effect with the N64 ABI.
892 if (ABIName != "64" && !Args.hasArg(options::OPT_mno_abicalls))
893 CmdArgs.push_back("-call_nonpic");
894
895 if (getToolChain().getTriple().isLittleEndian())
896 CmdArgs.push_back("-EL");
897 else
898 CmdArgs.push_back("-EB");
899
900 if (Arg *A = Args.getLastArg(options::OPT_mnan_EQ)) {
901 if (StringRef(A->getValue()) == "2008")
902 CmdArgs.push_back(Args.MakeArgString("-mnan=2008"));
903 }
904
905 // Add the last -mfp32/-mfpxx/-mfp64 or -mfpxx if it is enabled by default.
906 if (Arg *A = Args.getLastArg(options::OPT_mfp32, options::OPT_mfpxx,
907 options::OPT_mfp64)) {
908 A->claim();
909 A->render(Args, CmdArgs);
910 } else if (mips::shouldUseFPXX(
911 Args, getToolChain().getTriple(), CPUName, ABIName,
912 mips::getMipsFloatABI(getToolChain().getDriver(), Args,
913 getToolChain().getTriple())))
914 CmdArgs.push_back("-mfpxx");
915
916 // Pass on -mmips16 or -mno-mips16. However, the assembler equivalent of
917 // -mno-mips16 is actually -no-mips16.
918 if (Arg *A =
919 Args.getLastArg(options::OPT_mips16, options::OPT_mno_mips16)) {
920 if (A->getOption().matches(options::OPT_mips16)) {
921 A->claim();
922 A->render(Args, CmdArgs);
923 } else {
924 A->claim();
925 CmdArgs.push_back("-no-mips16");
926 }
927 }
928
929 Args.AddLastArg(CmdArgs, options::OPT_mmicromips,
930 options::OPT_mno_micromips);
931 Args.AddLastArg(CmdArgs, options::OPT_mdsp, options::OPT_mno_dsp);
932 Args.AddLastArg(CmdArgs, options::OPT_mdspr2, options::OPT_mno_dspr2);
933
934 if (Arg *A = Args.getLastArg(options::OPT_mmsa, options::OPT_mno_msa)) {
935 // Do not use AddLastArg because not all versions of MIPS assembler
936 // support -mmsa / -mno-msa options.
937 if (A->getOption().matches(options::OPT_mmsa))
938 CmdArgs.push_back(Args.MakeArgString("-mmsa"));
939 }
940
941 Args.AddLastArg(CmdArgs, options::OPT_mhard_float,
942 options::OPT_msoft_float);
943
944 Args.AddLastArg(CmdArgs, options::OPT_mdouble_float,
945 options::OPT_msingle_float);
946
947 Args.AddLastArg(CmdArgs, options::OPT_modd_spreg,
948 options::OPT_mno_odd_spreg);
949
950 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
951 break;
952 }
953 case llvm::Triple::systemz: {
954 // Always pass an -march option, since our default of z10 is later
955 // than the GNU assembler's default.
956 std::string CPUName = systemz::getSystemZTargetCPU(Args);
957 CmdArgs.push_back(Args.MakeArgString("-march=" + CPUName));
958 break;
959 }
960 case llvm::Triple::ve:
961 DefaultAssembler = "nas";
962 }
963
964 for (const Arg *A : Args.filtered(options::OPT_ffile_prefix_map_EQ,
965 options::OPT_fdebug_prefix_map_EQ)) {
966 StringRef Map = A->getValue();
967 if (!Map.contains('='))
968 D.Diag(diag::err_drv_invalid_argument_to_option)
969 << Map << A->getOption().getName();
970 else {
971 CmdArgs.push_back(Args.MakeArgString("--debug-prefix-map"));
972 CmdArgs.push_back(Args.MakeArgString(Map));
973 }
974 A->claim();
975 }
976
977 Args.AddAllArgs(CmdArgs, options::OPT_I);
978 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
979
980 CmdArgs.push_back("-o");
981 CmdArgs.push_back(Output.getFilename());
982
983 for (const auto &II : Inputs)
984 CmdArgs.push_back(II.getFilename());
985
986 if (Arg *A = Args.getLastArg(options::OPT_g_Flag, options::OPT_gN_Group,
987 options::OPT_gdwarf_2, options::OPT_gdwarf_3,
988 options::OPT_gdwarf_4, options::OPT_gdwarf_5,
989 options::OPT_gdwarf))
990 if (!A->getOption().matches(options::OPT_g0)) {
991 Args.AddLastArg(CmdArgs, options::OPT_g_Flag);
992
993 unsigned DwarfVersion = getDwarfVersion(getToolChain(), Args);
994 CmdArgs.push_back(Args.MakeArgString("-gdwarf-" + Twine(DwarfVersion)));
995 }
996
997 const char *Exec =
998 Args.MakeArgString(getToolChain().GetProgramPath(DefaultAssembler));
999 C.addCommand(std::make_unique<Command>(JA, *this,
1000 ResponseFileSupport::AtFileCurCP(),
1001 Exec, CmdArgs, Inputs, Output));
1002
1003 // Handle the debug info splitting at object creation time if we're
1004 // creating an object.
1005 // TODO: Currently only works on linux with newer objcopy.
1006 if (Args.hasArg(options::OPT_gsplit_dwarf) &&
1007 getToolChain().getTriple().isOSLinux())
1008 SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output,
1009 SplitDebugName(JA, Args, Inputs[0], Output));
1010}
1011
1012namespace {
1013// Filter to remove Multilibs that don't exist as a suffix to Path
1014class FilterNonExistent {
1015 StringRef Base, File;
1016 llvm::vfs::FileSystem &VFS;
1017
1018public:
1019 FilterNonExistent(StringRef Base, StringRef File, llvm::vfs::FileSystem &VFS)
1020 : Base(Base), File(File), VFS(VFS) {}
1021 bool operator()(const Multilib &M) {
1022 return !VFS.exists(Base + M.gccSuffix() + File);
1023 }
1024};
1025} // end anonymous namespace
1026
1027static bool isSoftFloatABI(const ArgList &Args) {
1028 Arg *A = Args.getLastArg(options::OPT_msoft_float, options::OPT_mhard_float,
1029 options::OPT_mfloat_abi_EQ);
1030 if (!A)
1031 return false;
1032
1033 return A->getOption().matches(options::OPT_msoft_float) ||
1034 (A->getOption().matches(options::OPT_mfloat_abi_EQ) &&
1035 A->getValue() == StringRef("soft"));
1036}
1037
1038static bool isArmOrThumbArch(llvm::Triple::ArchType Arch) {
1039 return Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb;
1040}
1041
1042static bool isMipsEL(llvm::Triple::ArchType Arch) {
1043 return Arch == llvm::Triple::mipsel || Arch == llvm::Triple::mips64el;
1044}
1045
1046static bool isMips16(const ArgList &Args) {
1047 Arg *A = Args.getLastArg(options::OPT_mips16, options::OPT_mno_mips16);
1048 return A && A->getOption().matches(options::OPT_mips16);
1049}
1050
1051static bool isMicroMips(const ArgList &Args) {
1052 Arg *A = Args.getLastArg(options::OPT_mmicromips, options::OPT_mno_micromips);
1053 return A && A->getOption().matches(options::OPT_mmicromips);
1054}
1055
1056static bool isMSP430(llvm::Triple::ArchType Arch) {
1057 return Arch == llvm::Triple::msp430;
1058}
1059
1060static bool findMipsCsMultilibs(const Multilib::flags_list &Flags,
1061 FilterNonExistent &NonExistent,
1062 DetectedMultilibs &Result) {
1063 // Check for Code Sourcery toolchain multilibs
1064 MultilibSet CSMipsMultilibs;
1065 {
1066 auto MArchMips16 = MultilibBuilder("/mips16").flag("+m32").flag("+mips16");
1067
1068 auto MArchMicroMips =
1069 MultilibBuilder("/micromips").flag("+m32").flag("+mmicromips");
1070
1071 auto MArchDefault = MultilibBuilder("").flag("-mips16").flag("-mmicromips");
1072
1073 auto UCLibc = MultilibBuilder("/uclibc").flag("+muclibc");
1074
1075 auto SoftFloat = MultilibBuilder("/soft-float").flag("+msoft-float");
1076
1077 auto Nan2008 = MultilibBuilder("/nan2008").flag("+mnan=2008");
1078
1079 auto DefaultFloat =
1080 MultilibBuilder("").flag("-msoft-float").flag("-mnan=2008");
1081
1082 auto BigEndian = MultilibBuilder("").flag("+EB").flag("-EL");
1083
1084 auto LittleEndian = MultilibBuilder("/el").flag("+EL").flag("-EB");
1085
1086 // Note that this one's osSuffix is ""
1087 auto MAbi64 = MultilibBuilder("")
1088 .gccSuffix("/64")
1089 .includeSuffix("/64")
1090 .flag("+mabi=n64")
1091 .flag("-mabi=n32")
1092 .flag("-m32");
1093
1094 CSMipsMultilibs =
1095 MultilibSetBuilder()
1096 .Either(MArchMips16, MArchMicroMips, MArchDefault)
1097 .Maybe(UCLibc)
1098 .Either(SoftFloat, Nan2008, DefaultFloat)
1099 .FilterOut("/micromips/nan2008")
1100 .FilterOut("/mips16/nan2008")
1101 .Either(BigEndian, LittleEndian)
1102 .Maybe(MAbi64)
1103 .FilterOut("/mips16.*/64")
1104 .FilterOut("/micromips.*/64")
1105 .makeMultilibSet()
1106 .FilterOut(NonExistent)
1107 .setIncludeDirsCallback([](const Multilib &M) {
1108 std::vector<std::string> Dirs({"/include"});
1109 if (StringRef(M.includeSuffix()).startswith("/uclibc"))
1110 Dirs.push_back(
1111 "/../../../../mips-linux-gnu/libc/uclibc/usr/include");
1112 else
1113 Dirs.push_back("/../../../../mips-linux-gnu/libc/usr/include");
1114 return Dirs;
1115 });
1116 }
1117
1118 MultilibSet DebianMipsMultilibs;
1119 {
1120 MultilibBuilder MAbiN32 =
1121 MultilibBuilder().gccSuffix("/n32").includeSuffix("/n32").flag(
1122 "+mabi=n32");
1123
1124 MultilibBuilder M64 = MultilibBuilder()
1125 .gccSuffix("/64")
1126 .includeSuffix("/64")
1127 .flag("+m64")
1128 .flag("-m32")
1129 .flag("-mabi=n32");
1130
1131 MultilibBuilder M32 =
1132 MultilibBuilder().gccSuffix("/32").flag("-m64").flag("+m32").flag(
1133 "-mabi=n32");
1134
1135 DebianMipsMultilibs = MultilibSetBuilder()
1136 .Either(M32, M64, MAbiN32)
1137 .makeMultilibSet()
1138 .FilterOut(NonExistent);
1139 }
1140
1141 // Sort candidates. Toolchain that best meets the directories tree goes first.
1142 // Then select the first toolchains matches command line flags.
1143 MultilibSet *Candidates[] = {&CSMipsMultilibs, &DebianMipsMultilibs};
1144 if (CSMipsMultilibs.size() < DebianMipsMultilibs.size())
1145 std::iter_swap(Candidates, Candidates + 1);
1146 for (const MultilibSet *Candidate : Candidates) {
1147 if (Candidate->select(Flags, Result.SelectedMultilib)) {
1148 if (Candidate == &DebianMipsMultilibs)
1149 Result.BiarchSibling = Multilib();
1150 Result.Multilibs = *Candidate;
1151 return true;
1152 }
1153 }
1154 return false;
1155}
1156
1157static bool findMipsAndroidMultilibs(llvm::vfs::FileSystem &VFS, StringRef Path,
1158 const Multilib::flags_list &Flags,
1159 FilterNonExistent &NonExistent,
1160 DetectedMultilibs &Result) {
1161
1162 MultilibSet AndroidMipsMultilibs =
1163 MultilibSetBuilder()
1164 .Maybe(MultilibBuilder("/mips-r2", {}, {}).flag("+march=mips32r2"))
1165 .Maybe(MultilibBuilder("/mips-r6", {}, {}).flag("+march=mips32r6"))
1166 .makeMultilibSet()
1167 .FilterOut(NonExistent);
1168
1169 MultilibSet AndroidMipselMultilibs =
1170 MultilibSetBuilder()
1171 .Either(MultilibBuilder().flag("+march=mips32"),
1172 MultilibBuilder("/mips-r2", "", "/mips-r2")
1173 .flag("+march=mips32r2"),
1174 MultilibBuilder("/mips-r6", "", "/mips-r6")
1175 .flag("+march=mips32r6"))
1176 .makeMultilibSet()
1177 .FilterOut(NonExistent);
1178
1179 MultilibSet AndroidMips64elMultilibs =
1180 MultilibSetBuilder()
1181 .Either(MultilibBuilder().flag("+march=mips64r6"),
1182 MultilibBuilder("/32/mips-r1", "", "/mips-r1")
1183 .flag("+march=mips32"),
1184 MultilibBuilder("/32/mips-r2", "", "/mips-r2")
1185 .flag("+march=mips32r2"),
1186 MultilibBuilder("/32/mips-r6", "", "/mips-r6")
1187 .flag("+march=mips32r6"))
1188 .makeMultilibSet()
1189 .FilterOut(NonExistent);
1190
1191 MultilibSet *MS = &AndroidMipsMultilibs;
1192 if (VFS.exists(Path + "/mips-r6"))
1193 MS = &AndroidMipselMultilibs;
1194 else if (VFS.exists(Path + "/32"))
1195 MS = &AndroidMips64elMultilibs;
1196 if (MS->select(Flags, Result.SelectedMultilib)) {
1197 Result.Multilibs = *MS;
1198 return true;
1199 }
1200 return false;
1201}
1202
1203static bool findMipsMuslMultilibs(const Multilib::flags_list &Flags,
1204 FilterNonExistent &NonExistent,
1205 DetectedMultilibs &Result) {
1206 // Musl toolchain multilibs
1207 MultilibSet MuslMipsMultilibs;
1208 {
1209 auto MArchMipsR2 = MultilibBuilder("")
1210 .osSuffix("/mips-r2-hard-musl")
1211 .flag("+EB")
1212 .flag("-EL")
1213 .flag("+march=mips32r2");
1214
1215 auto MArchMipselR2 = MultilibBuilder("/mipsel-r2-hard-musl")
1216 .flag("-EB")
1217 .flag("+EL")
1218 .flag("+march=mips32r2");
1219
1220 MuslMipsMultilibs = MultilibSetBuilder()
1221 .Either(MArchMipsR2, MArchMipselR2)
1222 .makeMultilibSet();
1223
1224 // Specify the callback that computes the include directories.
1225 MuslMipsMultilibs.setIncludeDirsCallback([](const Multilib &M) {
1226 return std::vector<std::string>(
1227 {"/../sysroot" + M.osSuffix() + "/usr/include"});
1228 });
1229 }
1230 if (MuslMipsMultilibs.select(Flags, Result.SelectedMultilib)) {
1231 Result.Multilibs = MuslMipsMultilibs;
1232 return true;
1233 }
1234 return false;
1235}
1236
1237static bool findMipsMtiMultilibs(const Multilib::flags_list &Flags,
1238 FilterNonExistent &NonExistent,
1239 DetectedMultilibs &Result) {
1240 // CodeScape MTI toolchain v1.2 and early.
1241 MultilibSet MtiMipsMultilibsV1;
1242 {
1243 auto MArchMips32 = MultilibBuilder("/mips32")
1244 .flag("+m32")
1245 .flag("-m64")
1246 .flag("-mmicromips")
1247 .flag("+march=mips32");
1248
1249 auto MArchMicroMips = MultilibBuilder("/micromips")
1250 .flag("+m32")
1251 .flag("-m64")
1252 .flag("+mmicromips");
1253
1254 auto MArchMips64r2 = MultilibBuilder("/mips64r2")
1255 .flag("-m32")
1256 .flag("+m64")
1257 .flag("+march=mips64r2");
1258
1259 auto MArchMips64 =
1260 MultilibBuilder("/mips64").flag("-m32").flag("+m64").flag(
1261 "-march=mips64r2");
1262
1263 auto MArchDefault = MultilibBuilder("")
1264 .flag("+m32")
1265 .flag("-m64")
1266 .flag("-mmicromips")
1267 .flag("+march=mips32r2");
1268
1269 auto Mips16 = MultilibBuilder("/mips16").flag("+mips16");
1270
1271 auto UCLibc = MultilibBuilder("/uclibc").flag("+muclibc");
1272
1273 auto MAbi64 =
1274 MultilibBuilder("/64").flag("+mabi=n64").flag("-mabi=n32").flag("-m32");
1275
1276 auto BigEndian = MultilibBuilder("").flag("+EB").flag("-EL");
1277
1278 auto LittleEndian = MultilibBuilder("/el").flag("+EL").flag("-EB");
1279
1280 auto SoftFloat = MultilibBuilder("/sof").flag("+msoft-float");
1281
1282 auto Nan2008 = MultilibBuilder("/nan2008").flag("+mnan=2008");
1283
1284 MtiMipsMultilibsV1 =
1285 MultilibSetBuilder()
1286 .Either(MArchMips32, MArchMicroMips, MArchMips64r2, MArchMips64,
1287 MArchDefault)
1288 .Maybe(UCLibc)
1289 .Maybe(Mips16)
1290 .FilterOut("/mips64/mips16")
1291 .FilterOut("/mips64r2/mips16")
1292 .FilterOut("/micromips/mips16")
1293 .Maybe(MAbi64)
1294 .FilterOut("/micromips/64")
1295 .FilterOut("/mips32/64")
1296 .FilterOut("^/64")
1297 .FilterOut("/mips16/64")
1298 .Either(BigEndian, LittleEndian)
1299 .Maybe(SoftFloat)
1300 .Maybe(Nan2008)
1301 .FilterOut(".*sof/nan2008")
1302 .makeMultilibSet()
1303 .FilterOut(NonExistent)
1304 .setIncludeDirsCallback([](const Multilib &M) {
1305 std::vector<std::string> Dirs({"/include"});
1306 if (StringRef(M.includeSuffix()).startswith("/uclibc"))
1307 Dirs.push_back("/../../../../sysroot/uclibc/usr/include");
1308 else
1309 Dirs.push_back("/../../../../sysroot/usr/include");
1310 return Dirs;
1311 });
1312 }
1313
1314 // CodeScape IMG toolchain starting from v1.3.
1315 MultilibSet MtiMipsMultilibsV2;
1316 {
1317 auto BeHard = MultilibBuilder("/mips-r2-hard")
1318 .flag("+EB")
1319 .flag("-msoft-float")
1320 .flag("-mnan=2008")
1321 .flag("-muclibc");
1322 auto BeSoft = MultilibBuilder("/mips-r2-soft")
1323 .flag("+EB")
1324 .flag("+msoft-float")
1325 .flag("-mnan=2008");
1326 auto ElHard = MultilibBuilder("/mipsel-r2-hard")
1327 .flag("+EL")
1328 .flag("-msoft-float")
1329 .flag("-mnan=2008")
1330 .flag("-muclibc");
1331 auto ElSoft = MultilibBuilder("/mipsel-r2-soft")
1332 .flag("+EL")
1333 .flag("+msoft-float")
1334 .flag("-mnan=2008")
1335 .flag("-mmicromips");
1336 auto BeHardNan = MultilibBuilder("/mips-r2-hard-nan2008")
1337 .flag("+EB")
1338 .flag("-msoft-float")
1339 .flag("+mnan=2008")
1340 .flag("-muclibc");
1341 auto ElHardNan = MultilibBuilder("/mipsel-r2-hard-nan2008")
1342 .flag("+EL")
1343 .flag("-msoft-float")
1344 .flag("+mnan=2008")
1345 .flag("-muclibc")
1346 .flag("-mmicromips");
1347 auto BeHardNanUclibc = MultilibBuilder("/mips-r2-hard-nan2008-uclibc")
1348 .flag("+EB")
1349 .flag("-msoft-float")
1350 .flag("+mnan=2008")
1351 .flag("+muclibc");
1352 auto ElHardNanUclibc = MultilibBuilder("/mipsel-r2-hard-nan2008-uclibc")
1353 .flag("+EL")
1354 .flag("-msoft-float")
1355 .flag("+mnan=2008")
1356 .flag("+muclibc");
1357 auto BeHardUclibc = MultilibBuilder("/mips-r2-hard-uclibc")
1358 .flag("+EB")
1359 .flag("-msoft-float")
1360 .flag("-mnan=2008")
1361 .flag("+muclibc");
1362 auto ElHardUclibc = MultilibBuilder("/mipsel-r2-hard-uclibc")
1363 .flag("+EL")
1364 .flag("-msoft-float")
1365 .flag("-mnan=2008")
1366 .flag("+muclibc");
1367 auto ElMicroHardNan = MultilibBuilder("/micromipsel-r2-hard-nan2008")
1368 .flag("+EL")
1369 .flag("-msoft-float")
1370 .flag("+mnan=2008")
1371 .flag("+mmicromips");
1372 auto ElMicroSoft = MultilibBuilder("/micromipsel-r2-soft")
1373 .flag("+EL")
1374 .flag("+msoft-float")
1375 .flag("-mnan=2008")
1376 .flag("+mmicromips");
1377
1378 auto O32 = MultilibBuilder("/lib")
1379 .osSuffix("")
1380 .flag("-mabi=n32")
1381 .flag("-mabi=n64");
1382 auto N32 = MultilibBuilder("/lib32")
1383 .osSuffix("")
1384 .flag("+mabi=n32")
1385 .flag("-mabi=n64");
1386 auto N64 = MultilibBuilder("/lib64")
1387 .osSuffix("")
1388 .flag("-mabi=n32")
1389 .flag("+mabi=n64");
1390
1391 MtiMipsMultilibsV2 =
1392 MultilibSetBuilder()
1393 .Either({BeHard, BeSoft, ElHard, ElSoft, BeHardNan, ElHardNan,
1394 BeHardNanUclibc, ElHardNanUclibc, BeHardUclibc,
1395 ElHardUclibc, ElMicroHardNan, ElMicroSoft})
1396 .Either(O32, N32, N64)
1397 .makeMultilibSet()
1398 .FilterOut(NonExistent)
1399 .setIncludeDirsCallback([](const Multilib &M) {
1400 return std::vector<std::string>({"/../../../../sysroot" +
1401 M.includeSuffix() +
1402 "/../usr/include"});
1403 })
1404 .setFilePathsCallback([](const Multilib &M) {
1405 return std::vector<std::string>(
1406 {"/../../../../mips-mti-linux-gnu/lib" + M.gccSuffix()});
1407 });
1408 }
1409 for (auto *Candidate : {&MtiMipsMultilibsV1, &MtiMipsMultilibsV2}) {
1410 if (Candidate->select(Flags, Result.SelectedMultilib)) {
1411 Result.Multilibs = *Candidate;
1412 return true;
1413 }
1414 }
1415 return false;
1416}
1417
1418static bool findMipsImgMultilibs(const Multilib::flags_list &Flags,
1419 FilterNonExistent &NonExistent,
1420 DetectedMultilibs &Result) {
1421 // CodeScape IMG toolchain v1.2 and early.
1422 MultilibSet ImgMultilibsV1;
1423 {
1424 auto Mips64r6 = MultilibBuilder("/mips64r6").flag("+m64").flag("-m32");
1425
1426 auto LittleEndian = MultilibBuilder("/el").flag("+EL").flag("-EB");
1427
1428 auto MAbi64 =
1429 MultilibBuilder("/64").flag("+mabi=n64").flag("-mabi=n32").flag("-m32");
1430
1431 ImgMultilibsV1 =
1432 MultilibSetBuilder()
1433 .Maybe(Mips64r6)
1434 .Maybe(MAbi64)
1435 .Maybe(LittleEndian)
1436 .makeMultilibSet()
1437 .FilterOut(NonExistent)
1438 .setIncludeDirsCallback([](const Multilib &M) {
1439 return std::vector<std::string>(
1440 {"/include", "/../../../../sysroot/usr/include"});
1441 });
1442 }
1443
1444 // CodeScape IMG toolchain starting from v1.3.
1445 MultilibSet ImgMultilibsV2;
1446 {
1447 auto BeHard = MultilibBuilder("/mips-r6-hard")
1448 .flag("+EB")
1449 .flag("-msoft-float")
1450 .flag("-mmicromips");
1451 auto BeSoft = MultilibBuilder("/mips-r6-soft")
1452 .flag("+EB")
1453 .flag("+msoft-float")
1454 .flag("-mmicromips");
1455 auto ElHard = MultilibBuilder("/mipsel-r6-hard")
1456 .flag("+EL")
1457 .flag("-msoft-float")
1458 .flag("-mmicromips");
1459 auto ElSoft = MultilibBuilder("/mipsel-r6-soft")
1460 .flag("+EL")
1461 .flag("+msoft-float")
1462 .flag("-mmicromips");
1463 auto BeMicroHard = MultilibBuilder("/micromips-r6-hard")
1464 .flag("+EB")
1465 .flag("-msoft-float")
1466 .flag("+mmicromips");
1467 auto BeMicroSoft = MultilibBuilder("/micromips-r6-soft")
1468 .flag("+EB")
1469 .flag("+msoft-float")
1470 .flag("+mmicromips");
1471 auto ElMicroHard = MultilibBuilder("/micromipsel-r6-hard")
1472 .flag("+EL")
1473 .flag("-msoft-float")
1474 .flag("+mmicromips");
1475 auto ElMicroSoft = MultilibBuilder("/micromipsel-r6-soft")
1476 .flag("+EL")
1477 .flag("+msoft-float")
1478 .flag("+mmicromips");
1479
1480 auto O32 = MultilibBuilder("/lib")
1481 .osSuffix("")
1482 .flag("-mabi=n32")
1483 .flag("-mabi=n64");
1484 auto N32 = MultilibBuilder("/lib32")
1485 .osSuffix("")
1486 .flag("+mabi=n32")
1487 .flag("-mabi=n64");
1488 auto N64 = MultilibBuilder("/lib64")
1489 .osSuffix("")
1490 .flag("-mabi=n32")
1491 .flag("+mabi=n64");
1492
1493 ImgMultilibsV2 =
1494 MultilibSetBuilder()
1495 .Either({BeHard, BeSoft, ElHard, ElSoft, BeMicroHard, BeMicroSoft,
1496 ElMicroHard, ElMicroSoft})
1497 .Either(O32, N32, N64)
1498 .makeMultilibSet()
1499 .FilterOut(NonExistent)
1500 .setIncludeDirsCallback([](const Multilib &M) {
1501 return std::vector<std::string>({"/../../../../sysroot" +
1502 M.includeSuffix() +
1503 "/../usr/include"});
1504 })
1505 .setFilePathsCallback([](const Multilib &M) {
1506 return std::vector<std::string>(
1507 {"/../../../../mips-img-linux-gnu/lib" + M.gccSuffix()});
1508 });
1509 }
1510 for (auto *Candidate : {&ImgMultilibsV1, &ImgMultilibsV2}) {
1511 if (Candidate->select(Flags, Result.SelectedMultilib)) {
1512 Result.Multilibs = *Candidate;
1513 return true;
1514 }
1515 }
1516 return false;
1517}
1518
1519bool clang::driver::findMIPSMultilibs(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
1525 StringRef CPUName;
1526 StringRef ABIName;
1527 tools::mips::getMipsCPUAndABI(Args, TargetTriple, CPUName, ABIName);
1528
1529 llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
1530
1531 Multilib::flags_list Flags;
1532 addMultilibFlag(TargetTriple.isMIPS32(), "m32", Flags);
1533 addMultilibFlag(TargetTriple.isMIPS64(), "m64", Flags);
1534 addMultilibFlag(isMips16(Args), "mips16", Flags);
1535 addMultilibFlag(CPUName == "mips32", "march=mips32", Flags);
1536 addMultilibFlag(CPUName == "mips32r2" || CPUName == "mips32r3" ||
1537 CPUName == "mips32r5" || CPUName == "p5600",
1538 "march=mips32r2", Flags);
1539 addMultilibFlag(CPUName == "mips32r6", "march=mips32r6", Flags);
1540 addMultilibFlag(CPUName == "mips64", "march=mips64", Flags);
1541 addMultilibFlag(CPUName == "mips64r2" || CPUName == "mips64r3" ||
1542 CPUName == "mips64r5" || CPUName == "octeon" ||
1543 CPUName == "octeon+",
1544 "march=mips64r2", Flags);
1545 addMultilibFlag(CPUName == "mips64r6", "march=mips64r6", Flags);
1546 addMultilibFlag(isMicroMips(Args), "mmicromips", Flags);
1547 addMultilibFlag(tools::mips::isUCLibc(Args), "muclibc", Flags);
1548 addMultilibFlag(tools::mips::isNaN2008(D, Args, TargetTriple), "mnan=2008",
1549 Flags);
1550 addMultilibFlag(ABIName == "n32", "mabi=n32", Flags);
1551 addMultilibFlag(ABIName == "n64", "mabi=n64", Flags);
1552 addMultilibFlag(isSoftFloatABI(Args), "msoft-float", Flags);
1553 addMultilibFlag(!isSoftFloatABI(Args), "mhard-float", Flags);
1554 addMultilibFlag(isMipsEL(TargetArch), "EL", Flags);
1555 addMultilibFlag(!isMipsEL(TargetArch), "EB", Flags);
1556
1557 if (TargetTriple.isAndroid())
1558 return findMipsAndroidMultilibs(D.getVFS(), Path, Flags, NonExistent,
1559 Result);
1560
1561 if (TargetTriple.getVendor() == llvm::Triple::MipsTechnologies &&
1562 TargetTriple.getOS() == llvm::Triple::Linux &&
1563 TargetTriple.getEnvironment() == llvm::Triple::UnknownEnvironment)
1564 return findMipsMuslMultilibs(Flags, NonExistent, Result);
1565
1566 if (TargetTriple.getVendor() == llvm::Triple::MipsTechnologies &&
1567 TargetTriple.getOS() == llvm::Triple::Linux &&
1568 TargetTriple.isGNUEnvironment())
1569 return findMipsMtiMultilibs(Flags, NonExistent, Result);
1570
1571 if (TargetTriple.getVendor() == llvm::Triple::ImaginationTechnologies &&
1572 TargetTriple.getOS() == llvm::Triple::Linux &&
1573 TargetTriple.isGNUEnvironment())
1574 return findMipsImgMultilibs(Flags, NonExistent, Result);
1575
1576 if (findMipsCsMultilibs(Flags, NonExistent, Result))
1577 return true;
1578
1579 // Fallback to the regular toolchain-tree structure.
1580 Multilib Default;
1581 Result.Multilibs.push_back(Default);
1582 Result.Multilibs.FilterOut(NonExistent);
1583
1584 if (Result.Multilibs.select(Flags, Result.SelectedMultilib)) {
1585 Result.BiarchSibling = Multilib();
1586 return true;
1587 }
1588
1589 return false;
1590}
1591
1592static void findAndroidArmMultilibs(const Driver &D,
1593 const llvm::Triple &TargetTriple,
1594 StringRef Path, const ArgList &Args,
1595 DetectedMultilibs &Result) {
1596 // Find multilibs with subdirectories like armv7-a, thumb, armv7-a/thumb.
1597 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1598 MultilibBuilder ArmV7Multilib =
1599 MultilibBuilder("/armv7-a").flag("+march=armv7-a").flag("-mthumb");
1600 MultilibBuilder ThumbMultilib =
1601 MultilibBuilder("/thumb").flag("-march=armv7-a").flag("+mthumb");
1602 MultilibBuilder ArmV7ThumbMultilib =
1603 MultilibBuilder("/armv7-a/thumb").flag("+march=armv7-a").flag("+mthumb");
1604 MultilibBuilder DefaultMultilib =
1605 MultilibBuilder("").flag("-march=armv7-a").flag("-mthumb");
1606 MultilibSet AndroidArmMultilibs =
1607 MultilibSetBuilder()
1608 .Either(ThumbMultilib, ArmV7Multilib, ArmV7ThumbMultilib,
1609 DefaultMultilib)
1610 .makeMultilibSet()
1611 .FilterOut(NonExistent);
1612
1613 Multilib::flags_list Flags;
1614 llvm::StringRef Arch = Args.getLastArgValue(options::OPT_march_EQ);
1615 bool IsArmArch = TargetTriple.getArch() == llvm::Triple::arm;
1616 bool IsThumbArch = TargetTriple.getArch() == llvm::Triple::thumb;
1617 bool IsV7SubArch = TargetTriple.getSubArch() == llvm::Triple::ARMSubArch_v7;
1618 bool IsThumbMode = IsThumbArch ||
1619 Args.hasFlag(options::OPT_mthumb, options::OPT_mno_thumb, false) ||
1620 (IsArmArch && llvm::ARM::parseArchISA(Arch) == llvm::ARM::ISAKind::THUMB);
1621 bool IsArmV7Mode = (IsArmArch || IsThumbArch) &&
1622 (llvm::ARM::parseArchVersion(Arch) == 7 ||
1623 (IsArmArch && Arch == "" && IsV7SubArch));
1624 addMultilibFlag(IsArmV7Mode, "march=armv7-a", Flags);
1625 addMultilibFlag(IsThumbMode, "mthumb", Flags);
1626
1627 if (AndroidArmMultilibs.select(Flags, Result.SelectedMultilib))
1628 Result.Multilibs = AndroidArmMultilibs;
1629}
1630
1631static bool findMSP430Multilibs(const Driver &D,
1632 const llvm::Triple &TargetTriple,
1633 StringRef Path, const ArgList &Args,
1634 DetectedMultilibs &Result) {
1635 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1636 MultilibBuilder WithoutExceptions =
1637 MultilibBuilder("/430").flag("-exceptions");
1638 MultilibBuilder WithExceptions =
1639 MultilibBuilder("/430/exceptions").flag("+exceptions");
1640
1641 // FIXME: when clang starts to support msp430x ISA additional logic
1642 // to select between multilib must be implemented
1643 // MultilibBuilder MSP430xMultilib = MultilibBuilder("/large");
1644
1645 Result.Multilibs.push_back(WithoutExceptions.makeMultilib());
1646 Result.Multilibs.push_back(WithExceptions.makeMultilib());
1647 Result.Multilibs.FilterOut(NonExistent);
1648
1649 Multilib::flags_list Flags;
1650 addMultilibFlag(Args.hasFlag(options::OPT_fexceptions,
1651 options::OPT_fno_exceptions, false),
1652 "exceptions", Flags);
1653 if (Result.Multilibs.select(Flags, Result.SelectedMultilib))
1654 return true;
1655
1656 return false;
1657}
1658
1659static void findCSKYMultilibs(const Driver &D, const llvm::Triple &TargetTriple,
1660 StringRef Path, const ArgList &Args,
1661 DetectedMultilibs &Result) {
1662 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1663
1664 tools::csky::FloatABI TheFloatABI = tools::csky::getCSKYFloatABI(D, Args);
1665 std::optional<llvm::StringRef> Res =
1666 tools::csky::getCSKYArchName(D, Args, TargetTriple);
1667
1668 if (!Res)
1669 return;
1670 auto ARCHName = *Res;
1671
1672 Multilib::flags_list Flags;
1673 addMultilibFlag(TheFloatABI == tools::csky::FloatABI::Hard, "hard-fp", Flags);
1674 addMultilibFlag(TheFloatABI == tools::csky::FloatABI::SoftFP, "soft-fp",
1675 Flags);
1676 addMultilibFlag(TheFloatABI == tools::csky::FloatABI::Soft, "soft", Flags);
1677 addMultilibFlag(ARCHName == "ck801", "march=ck801", Flags);
1678 addMultilibFlag(ARCHName == "ck802", "march=ck802", Flags);
1679 addMultilibFlag(ARCHName == "ck803", "march=ck803", Flags);
1680 addMultilibFlag(ARCHName == "ck804", "march=ck804", Flags);
1681 addMultilibFlag(ARCHName == "ck805", "march=ck805", Flags);
1682 addMultilibFlag(ARCHName == "ck807", "march=ck807", Flags);
1683 addMultilibFlag(ARCHName == "ck810", "march=ck810", Flags);
1684 addMultilibFlag(ARCHName == "ck810v", "march=ck810v", Flags);
1685 addMultilibFlag(ARCHName == "ck860", "march=ck860", Flags);
1686 addMultilibFlag(ARCHName == "ck860v", "march=ck860v", Flags);
1687
1688 bool isBigEndian = false;
1689 if (Arg *A = Args.getLastArg(options::OPT_mlittle_endian,
1690 options::OPT_mbig_endian))
1691 isBigEndian = !A->getOption().matches(options::OPT_mlittle_endian);
1692 addMultilibFlag(isBigEndian, "EB", Flags);
1693
1694 auto HardFloat = MultilibBuilder("/hard-fp").flag("+hard-fp");
1695 auto SoftFpFloat = MultilibBuilder("/soft-fp").flag("+soft-fp");
1696 auto SoftFloat = MultilibBuilder("").flag("+soft");
1697 auto Arch801 = MultilibBuilder("/ck801").flag("+march=ck801");
1698 auto Arch802 = MultilibBuilder("/ck802").flag("+march=ck802");
1699 auto Arch803 = MultilibBuilder("/ck803").flag("+march=ck803");
1700 // CK804 use the same library as CK803
1701 auto Arch804 = MultilibBuilder("/ck803").flag("+march=ck804");
1702 auto Arch805 = MultilibBuilder("/ck805").flag("+march=ck805");
1703 auto Arch807 = MultilibBuilder("/ck807").flag("+march=ck807");
1704 auto Arch810 = MultilibBuilder("").flag("+march=ck810");
1705 auto Arch810v = MultilibBuilder("/ck810v").flag("+march=ck810v");
1706 auto Arch860 = MultilibBuilder("/ck860").flag("+march=ck860");
1707 auto Arch860v = MultilibBuilder("/ck860v").flag("+march=ck860v");
1708 auto BigEndian = MultilibBuilder("/big").flag("+EB");
1709
1710 MultilibSet CSKYMultilibs =
1711 MultilibSetBuilder()
1712 .Maybe(BigEndian)
1713 .Either({Arch801, Arch802, Arch803, Arch804, Arch805, Arch807,
1714 Arch810, Arch810v, Arch860, Arch860v})
1715 .Either(HardFloat, SoftFpFloat, SoftFloat)
1716 .makeMultilibSet()
1717 .FilterOut(NonExistent);
1718
1719 if (CSKYMultilibs.select(Flags, Result.SelectedMultilib))
1720 Result.Multilibs = CSKYMultilibs;
1721}
1722
1723static void findRISCVBareMetalMultilibs(const Driver &D,
1724 const llvm::Triple &TargetTriple,
1725 StringRef Path, const ArgList &Args,
1726 DetectedMultilibs &Result) {
1727 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1728 struct RiscvMultilib {
1729 StringRef march;
1730 StringRef mabi;
1731 };
1732 // currently only support the set of multilibs like riscv-gnu-toolchain does.
1733 // TODO: support MULTILIB_REUSE
1734 constexpr RiscvMultilib RISCVMultilibSet[] = {
1735 {"rv32i", "ilp32"}, {"rv32im", "ilp32"}, {"rv32iac", "ilp32"},
1736 {"rv32imac", "ilp32"}, {"rv32imafc", "ilp32f"}, {"rv64imac", "lp64"},
1737 {"rv64imafdc", "lp64d"}};
1738
1739 std::vector<MultilibBuilder> Ms;
1740 for (auto Element : RISCVMultilibSet) {
1741 // multilib path rule is ${march}/${mabi}
1742 Ms.emplace_back(
1743 MultilibBuilder(
1744 (Twine(Element.march) + "/" + Twine(Element.mabi)).str())
1745 .flag(Twine("+march=", Element.march).str())
1746 .flag(Twine("+mabi=", Element.mabi).str()));
1747 }
1748 MultilibSet RISCVMultilibs =
1749 MultilibSetBuilder()
1750 .Either(Ms)
1751 .makeMultilibSet()
1752 .FilterOut(NonExistent)
1753 .setFilePathsCallback([](const Multilib &M) {
1754 return std::vector<std::string>(
1755 {M.gccSuffix(),
1756 "/../../../../riscv64-unknown-elf/lib" + M.gccSuffix(),
1757 "/../../../../riscv32-unknown-elf/lib" + M.gccSuffix()});
1758 });
1759
1760 Multilib::flags_list Flags;
1761 llvm::StringSet<> Added_ABIs;
1762 StringRef ABIName = tools::riscv::getRISCVABI(Args, TargetTriple);
1763 StringRef MArch = tools::riscv::getRISCVArch(Args, TargetTriple);
1764 for (auto Element : RISCVMultilibSet) {
1765 addMultilibFlag(MArch == Element.march,
1766 Twine("march=", Element.march).str().c_str(), Flags);
1767 if (!Added_ABIs.count(Element.mabi)) {
1768 Added_ABIs.insert(Element.mabi);
1769 addMultilibFlag(ABIName == Element.mabi,
1770 Twine("mabi=", Element.mabi).str().c_str(), Flags);
1771 }
1772 }
1773
1774 if (RISCVMultilibs.select(Flags, Result.SelectedMultilib))
1775 Result.Multilibs = RISCVMultilibs;
1776}
1777
1778static void findRISCVMultilibs(const Driver &D,
1779 const llvm::Triple &TargetTriple, StringRef Path,
1780 const ArgList &Args, DetectedMultilibs &Result) {
1781 if (TargetTriple.getOS() == llvm::Triple::UnknownOS)
1782 return findRISCVBareMetalMultilibs(D, TargetTriple, Path, Args, Result);
1783
1784 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1785 MultilibBuilder Ilp32 =
1786 MultilibBuilder("lib32/ilp32").flag("+m32").flag("+mabi=ilp32");
1787 MultilibBuilder Ilp32f =
1788 MultilibBuilder("lib32/ilp32f").flag("+m32").flag("+mabi=ilp32f");
1789 MultilibBuilder Ilp32d =
1790 MultilibBuilder("lib32/ilp32d").flag("+m32").flag("+mabi=ilp32d");
1791 MultilibBuilder Lp64 =
1792 MultilibBuilder("lib64/lp64").flag("+m64").flag("+mabi=lp64");
1793 MultilibBuilder Lp64f =
1794 MultilibBuilder("lib64/lp64f").flag("+m64").flag("+mabi=lp64f");
1795 MultilibBuilder Lp64d =
1796 MultilibBuilder("lib64/lp64d").flag("+m64").flag("+mabi=lp64d");
1797 MultilibSet RISCVMultilibs =
1798 MultilibSetBuilder()
1799 .Either({Ilp32, Ilp32f, Ilp32d, Lp64, Lp64f, Lp64d})
1800 .makeMultilibSet()
1801 .FilterOut(NonExistent);
1802
1803 Multilib::flags_list Flags;
1804 bool IsRV64 = TargetTriple.getArch() == llvm::Triple::riscv64;
1805 StringRef ABIName = tools::riscv::getRISCVABI(Args, TargetTriple);
1806
1807 addMultilibFlag(!IsRV64, "m32", Flags);
1808 addMultilibFlag(IsRV64, "m64", Flags);
1809 addMultilibFlag(ABIName == "ilp32", "mabi=ilp32", Flags);
1810 addMultilibFlag(ABIName == "ilp32f", "mabi=ilp32f", Flags);
1811 addMultilibFlag(ABIName == "ilp32d", "mabi=ilp32d", Flags);
1812 addMultilibFlag(ABIName == "lp64", "mabi=lp64", Flags);
1813 addMultilibFlag(ABIName == "lp64f", "mabi=lp64f", Flags);
1814 addMultilibFlag(ABIName == "lp64d", "mabi=lp64d", Flags);
1815
1816 if (RISCVMultilibs.select(Flags, Result.SelectedMultilib))
1817 Result.Multilibs = RISCVMultilibs;
1818}
1819
1820static bool findBiarchMultilibs(const Driver &D,
1821 const llvm::Triple &TargetTriple,
1822 StringRef Path, const ArgList &Args,
1823 bool NeedsBiarchSuffix,
1824 DetectedMultilibs &Result) {
1825 MultilibBuilder DefaultBuilder;
1826
1827 // Some versions of SUSE and Fedora on ppc64 put 32-bit libs
1828 // in what would normally be GCCInstallPath and put the 64-bit
1829 // libs in a subdirectory named 64. The simple logic we follow is that
1830 // *if* there is a subdirectory of the right name with crtbegin.o in it,
1831 // we use that. If not, and if not a biarch triple alias, we look for
1832 // crtbegin.o without the subdirectory.
1833
1834 StringRef Suff64 = "/64";
1835 // Solaris uses platform-specific suffixes instead of /64.
1836 if (TargetTriple.getOS() == llvm::Triple::Solaris) {
1837 switch (TargetTriple.getArch()) {
1838 case llvm::Triple::x86:
1839 case llvm::Triple::x86_64:
1840 Suff64 = "/amd64";
1841 break;
1842 case llvm::Triple::sparc:
1843 case llvm::Triple::sparcv9:
1844 Suff64 = "/sparcv9";
1845 break;
1846 default:
1847 break;
1848 }
1849 }
1850
1851 Multilib Alt64 = MultilibBuilder()
1852 .gccSuffix(Suff64)
1853 .includeSuffix(Suff64)
1854 .flag("-m32")
1855 .flag("+m64")
1856 .flag("-mx32")
1857 .makeMultilib();
1858 Multilib Alt32 = MultilibBuilder()
1859 .gccSuffix("/32")
1860 .includeSuffix("/32")
1861 .flag("+m32")
1862 .flag("-m64")
1863 .flag("-mx32")
1864 .makeMultilib();
1865 Multilib Altx32 = MultilibBuilder()
1866 .gccSuffix("/x32")
1867 .includeSuffix("/x32")
1868 .flag("-m32")
1869 .flag("-m64")
1870 .flag("+mx32")
1871 .makeMultilib();
1872
1873 // GCC toolchain for IAMCU doesn't have crtbegin.o, so look for libgcc.a.
1874 FilterNonExistent NonExistent(
1875 Path, TargetTriple.isOSIAMCU() ? "/libgcc.a" : "/crtbegin.o", D.getVFS());
1876
1877 // Determine default multilib from: 32, 64, x32
1878 // Also handle cases such as 64 on 32, 32 on 64, etc.
1879 enum { UNKNOWN, WANT32, WANT64, WANTX32 } Want = UNKNOWN;
1880 const bool IsX32 = TargetTriple.isX32();
1881 if (TargetTriple.isArch32Bit() && !NonExistent(Alt32))
1882 Want = WANT64;
1883 else if (TargetTriple.isArch64Bit() && IsX32 && !NonExistent(Altx32))
1884 Want = WANT64;
1885 else if (TargetTriple.isArch64Bit() && !IsX32 && !NonExistent(Alt64))
1886 Want = WANT32;
1887 else {
1888 if (TargetTriple.isArch32Bit())
1889 Want = NeedsBiarchSuffix ? WANT64 : WANT32;
1890 else if (IsX32)
1891 Want = NeedsBiarchSuffix ? WANT64 : WANTX32;
1892 else
1893 Want = NeedsBiarchSuffix ? WANT32 : WANT64;
1894 }
1895
1896 if (Want == WANT32)
1897 DefaultBuilder.flag("+m32").flag("-m64").flag("-mx32");
1898 else if (Want == WANT64)
1899 DefaultBuilder.flag("-m32").flag("+m64").flag("-mx32");
1900 else if (Want == WANTX32)
1901 DefaultBuilder.flag("-m32").flag("-m64").flag("+mx32");
1902 else
1903 return false;
1904
1905 Multilib Default = DefaultBuilder.makeMultilib();
1906
1907 Result.Multilibs.push_back(Default);
1908 Result.Multilibs.push_back(Alt64);
1909 Result.Multilibs.push_back(Alt32);
1910 Result.Multilibs.push_back(Altx32);
1911
1912 Result.Multilibs.FilterOut(NonExistent);
1913
1914 Multilib::flags_list Flags;
1915 addMultilibFlag(TargetTriple.isArch64Bit() && !IsX32, "m64", Flags);
1916 addMultilibFlag(TargetTriple.isArch32Bit(), "m32", Flags);
1917 addMultilibFlag(TargetTriple.isArch64Bit() && IsX32, "mx32", Flags);
1918
1919 if (!Result.Multilibs.select(Flags, Result.SelectedMultilib))
1920 return false;
1921
1922 if (Result.SelectedMultilib == Alt64 || Result.SelectedMultilib == Alt32 ||
1923 Result.SelectedMultilib == Altx32)
1924 Result.BiarchSibling = Default;
1925
1926 return true;
1927}
1928
1929/// Generic_GCC - A tool chain using the 'gcc' command to perform
1930/// all subcommands; this relies on gcc translating the majority of
1931/// command line options.
1932
1933/// Less-than for GCCVersion, implementing a Strict Weak Ordering.
1934bool Generic_GCC::GCCVersion::isOlderThan(int RHSMajor, int RHSMinor,
1935 int RHSPatch,
1936 StringRef RHSPatchSuffix) const {
1937 if (Major != RHSMajor)
1938 return Major < RHSMajor;
1939 if (Minor != RHSMinor) {
1940 // Note that versions without a specified minor sort higher than those with
1941 // a minor.
1942 if (RHSMinor == -1)
1943 return true;
1944 if (Minor == -1)
1945 return false;
1946 return Minor < RHSMinor;
1947 }
1948 if (Patch != RHSPatch) {
1949 // Note that versions without a specified patch sort higher than those with
1950 // a patch.
1951 if (RHSPatch == -1)
1952 return true;
1953 if (Patch == -1)
1954 return false;
1955
1956 // Otherwise just sort on the patch itself.
1957 return Patch < RHSPatch;
1958 }
1959 if (PatchSuffix != RHSPatchSuffix) {
1960 // Sort empty suffixes higher.
1961 if (RHSPatchSuffix.empty())
1962 return true;
1963 if (PatchSuffix.empty())
1964 return false;
1965
1966 // Provide a lexicographic sort to make this a total ordering.
1967 return PatchSuffix < RHSPatchSuffix;
1968 }
1969
1970 // The versions are equal.
1971 return false;
1972}
1973
1974/// Parse a GCCVersion object out of a string of text.
1975///
1976/// This is the primary means of forming GCCVersion objects.
1977/*static*/
1978Generic_GCC::GCCVersion Generic_GCC::GCCVersion::Parse(StringRef VersionText) {
1979 const GCCVersion BadVersion = {VersionText.str(), -1, -1, -1, "", "", ""};
1980 std::pair<StringRef, StringRef> First = VersionText.split('.');
1981 std::pair<StringRef, StringRef> Second = First.second.split('.');
1982
1983 GCCVersion GoodVersion = {VersionText.str(), -1, -1, -1, "", "", ""};
1984 if (First.first.getAsInteger(10, GoodVersion.Major) || GoodVersion.Major < 0)
1985 return BadVersion;
1986 GoodVersion.MajorStr = First.first.str();
1987 if (First.second.empty())
1988 return GoodVersion;
1989 StringRef MinorStr = Second.first;
1990 if (Second.second.empty()) {
1991 if (size_t EndNumber = MinorStr.find_first_not_of("0123456789")) {
1992 GoodVersion.PatchSuffix = std::string(MinorStr.substr(EndNumber));
1993 MinorStr = MinorStr.slice(0, EndNumber);
1994 }
1995 }
1996 if (MinorStr.getAsInteger(10, GoodVersion.Minor) || GoodVersion.Minor < 0)
1997 return BadVersion;
1998 GoodVersion.MinorStr = MinorStr.str();
1999
2000 // First look for a number prefix and parse that if present. Otherwise just
2001 // stash the entire patch string in the suffix, and leave the number
2002 // unspecified. This covers versions strings such as:
2003 // 5 (handled above)
2004 // 4.4
2005 // 4.4-patched
2006 // 4.4.0
2007 // 4.4.x
2008 // 4.4.2-rc4
2009 // 4.4.x-patched
2010 // And retains any patch number it finds.
2011 StringRef PatchText = Second.second;
2012 if (!PatchText.empty()) {
2013 if (size_t EndNumber = PatchText.find_first_not_of("0123456789")) {
2014 // Try to parse the number and any suffix.
2015 if (PatchText.slice(0, EndNumber).getAsInteger(10, GoodVersion.Patch) ||
2016 GoodVersion.Patch < 0)
2017 return BadVersion;
2018 GoodVersion.PatchSuffix = std::string(PatchText.substr(EndNumber));
2019 }
2020 }
2021
2022 return GoodVersion;
2023}
2024
2025static llvm::StringRef getGCCToolchainDir(const ArgList &Args,
2026 llvm::StringRef SysRoot) {
2027 const Arg *A = Args.getLastArg(clang::driver::options::OPT_gcc_toolchain);
2028 if (A)
2029 return A->getValue();
2030
2031 // If we have a SysRoot, ignore GCC_INSTALL_PREFIX.
2032 // GCC_INSTALL_PREFIX specifies the gcc installation for the default
2033 // sysroot and is likely not valid with a different sysroot.
2034 if (!SysRoot.empty())
2035 return "";
2036
2037 return GCC_INSTALL_PREFIX;
2038}
2039
2040/// Initialize a GCCInstallationDetector from the driver.
2041///
2042/// This performs all of the autodetection and sets up the various paths.
2043/// Once constructed, a GCCInstallationDetector is essentially immutable.
2044///
2045/// FIXME: We shouldn't need an explicit TargetTriple parameter here, and
2046/// should instead pull the target out of the driver. This is currently
2047/// necessary because the driver doesn't store the final version of the target
2048/// triple.
2049void Generic_GCC::GCCInstallationDetector::init(
2050 const llvm::Triple &TargetTriple, const ArgList &Args,
2051 ArrayRef<std::string> ExtraTripleAliases) {
2052 llvm::Triple BiarchVariantTriple = TargetTriple.isArch32Bit()
2053 ? TargetTriple.get64BitArchVariant()
2054 : TargetTriple.get32BitArchVariant();
2055 // The library directories which may contain GCC installations.
2056 SmallVector<StringRef, 4> CandidateLibDirs, CandidateBiarchLibDirs;
2057 // The compatible GCC triples for this particular architecture.
2058 SmallVector<StringRef, 16> CandidateTripleAliases;
2059 SmallVector<StringRef, 16> CandidateBiarchTripleAliases;
2060 CollectLibDirsAndTriples(TargetTriple, BiarchVariantTriple, CandidateLibDirs,
2061 CandidateTripleAliases, CandidateBiarchLibDirs,
2062 CandidateBiarchTripleAliases);
2063
2064 // If --gcc-install-dir= is specified, skip filesystem detection.
2065 if (const Arg *A =
2066 Args.getLastArg(clang::driver::options::OPT_gcc_install_dir_EQ);
2067 A && A->getValue()[0]) {
2068 StringRef InstallDir = A->getValue();
2069 if (!ScanGCCForMultilibs(TargetTriple, Args, InstallDir, false)) {
2070 D.Diag(diag::err_drv_invalid_gcc_install_dir) << InstallDir;
2071 } else {
2072 (void)InstallDir.consume_back("/");
2073 StringRef VersionText = llvm::sys::path::filename(InstallDir);
2074 StringRef TripleText =
2075 llvm::sys::path::filename(llvm::sys::path::parent_path(InstallDir));
2076
2077 Version = GCCVersion::Parse(VersionText);
2078 GCCTriple.setTriple(TripleText);
2079 GCCInstallPath = std::string(InstallDir);
2080 GCCParentLibPath = GCCInstallPath + "/../../..";
2081 IsValid = true;
2082 }
2083 return;
2084 }
2085
2086 // Compute the set of prefixes for our search.
2087 SmallVector<std::string, 8> Prefixes;
2088 StringRef GCCToolchainDir = getGCCToolchainDir(Args, D.SysRoot);
2089 if (GCCToolchainDir != "") {
2090 if (GCCToolchainDir.back() == '/')
2091 GCCToolchainDir = GCCToolchainDir.drop_back(); // remove the /
2092
2093 Prefixes.push_back(std::string(GCCToolchainDir));
2094 } else {
2095 // If we have a SysRoot, try that first.
2096 if (!D.SysRoot.empty()) {
2097 Prefixes.push_back(D.SysRoot);
2098 AddDefaultGCCPrefixes(TargetTriple, Prefixes, D.SysRoot);
2099 }
2100
2101 // Then look for gcc installed alongside clang.
2102 Prefixes.push_back(D.InstalledDir + "/..");
2103
2104 // Next, look for prefix(es) that correspond to distribution-supplied gcc
2105 // installations.
2106 if (D.SysRoot.empty()) {
2107 // Typically /usr.
2108 AddDefaultGCCPrefixes(TargetTriple, Prefixes, D.SysRoot);
2109 }
2110
2111 // Try to respect gcc-config on Gentoo if --gcc-toolchain is not provided.
2112 // This avoids accidentally enforcing the system GCC version when using a
2113 // custom toolchain.
2114 SmallVector<StringRef, 16> GentooTestTriples;
2115 // Try to match an exact triple as target triple first.
2116 // e.g. crossdev -S x86_64-gentoo-linux-gnu will install gcc libs for
2117 // x86_64-gentoo-linux-gnu. But "clang -target x86_64-gentoo-linux-gnu"
2118 // may pick the libraries for x86_64-pc-linux-gnu even when exact matching
2119 // triple x86_64-gentoo-linux-gnu is present.
2120 GentooTestTriples.push_back(TargetTriple.str());
2121 // Check rest of triples.
2122 GentooTestTriples.append(ExtraTripleAliases.begin(),
2123 ExtraTripleAliases.end());
2124 GentooTestTriples.append(CandidateTripleAliases.begin(),
2125 CandidateTripleAliases.end());
2126 if (ScanGentooConfigs(TargetTriple, Args, GentooTestTriples,
2127 CandidateBiarchTripleAliases))
2128 return;
2129 }
2130
2131 // Loop over the various components which exist and select the best GCC
2132 // installation available. GCC installs are ranked by version number.
2133 const GCCVersion VersionZero = GCCVersion::Parse("0.0.0");
2134 Version = VersionZero;
2135 for (const std::string &Prefix : Prefixes) {
2136 auto &VFS = D.getVFS();
2137 if (!VFS.exists(Prefix))
2138 continue;
2139 for (StringRef Suffix : CandidateLibDirs) {
2140 const std::string LibDir = concat(Prefix, Suffix);
2141 if (!VFS.exists(LibDir))
2142 continue;
2143 // Maybe filter out <libdir>/gcc and <libdir>/gcc-cross.
2144 bool GCCDirExists = VFS.exists(LibDir + "/gcc");
2145 bool GCCCrossDirExists = VFS.exists(LibDir + "/gcc-cross");
2146 // Try to match the exact target triple first.
2147 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, TargetTriple.str(),
2148 false, GCCDirExists, GCCCrossDirExists);
2149 // Try rest of possible triples.
2150 for (StringRef Candidate : ExtraTripleAliases) // Try these first.
2151 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate, false,
2152 GCCDirExists, GCCCrossDirExists);
2153 for (StringRef Candidate : CandidateTripleAliases)
2154 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate, false,
2155 GCCDirExists, GCCCrossDirExists);
2156 }
2157 for (StringRef Suffix : CandidateBiarchLibDirs) {
2158 const std::string LibDir = Prefix + Suffix.str();
2159 if (!VFS.exists(LibDir))
2160 continue;
2161 bool GCCDirExists = VFS.exists(LibDir + "/gcc");
2162 bool GCCCrossDirExists = VFS.exists(LibDir + "/gcc-cross");
2163 for (StringRef Candidate : CandidateBiarchTripleAliases)
2164 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate, true,
2165 GCCDirExists, GCCCrossDirExists);
2166 }
2167
2168 // Skip other prefixes once a GCC installation is found.
2169 if (Version > VersionZero)
2170 break;
2171 }
2172}
2173
2174void Generic_GCC::GCCInstallationDetector::print(raw_ostream &OS) const {
2175 for (const auto &InstallPath : CandidateGCCInstallPaths)
2176 OS << "Found candidate GCC installation: " << InstallPath << "\n";
2177
2178 if (!GCCInstallPath.empty())
2179 OS << "Selected GCC installation: " << GCCInstallPath << "\n";
2180
2181 for (const auto &Multilib : Multilibs)
2182 OS << "Candidate multilib: " << Multilib << "\n";
2183
2184 if (Multilibs.size() != 0 || !SelectedMultilib.isDefault())
2185 OS << "Selected multilib: " << SelectedMultilib << "\n";
2186}
2187
2188bool Generic_GCC::GCCInstallationDetector::getBiarchSibling(Multilib &M) const {
2189 if (BiarchSibling) {
2190 M = *BiarchSibling;
2191 return true;
2192 }
2193 return false;
2194}
2195
2196void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
2197 const llvm::Triple &TargetTriple, SmallVectorImpl<std::string> &Prefixes,
2198 StringRef SysRoot) {
2199 if (TargetTriple.getOS() == llvm::Triple::Solaris) {
2200 // Solaris is a special case.
2201 // The GCC installation is under
2202 // /usr/gcc/<major>.<minor>/lib/gcc/<triple>/<major>.<minor>.<patch>/
2203 // so we need to find those /usr/gcc/*/lib/gcc libdirs and go with
2204 // /usr/gcc/<version> as a prefix.
2205
2206 std::string PrefixDir = concat(SysRoot, "/usr/gcc");
2207 std::error_code EC;
2208 for (llvm::vfs::directory_iterator LI = D.getVFS().dir_begin(PrefixDir, EC),
2209 LE;
2210 !EC && LI != LE; LI = LI.increment(EC)) {
2211 StringRef VersionText = llvm::sys::path::filename(LI->path());
2212 GCCVersion CandidateVersion = GCCVersion::Parse(VersionText);
2213
2214 // Filter out obviously bad entries.
2215 if (CandidateVersion.Major == -1 || CandidateVersion.isOlderThan(4, 1, 1))
2216 continue;
2217
2218 std::string CandidatePrefix = PrefixDir + "/" + VersionText.str();
2219 std::string CandidateLibPath = CandidatePrefix + "/lib/gcc";
2220 if (!D.getVFS().exists(CandidateLibPath))
2221 continue;
2222
2223 Prefixes.push_back(CandidatePrefix);
2224 }
2225 return;
2226 }
2227
2228 // For Linux, if --sysroot is not specified, look for RHEL/CentOS devtoolsets
2229 // and gcc-toolsets.
2230 if (SysRoot.empty() && TargetTriple.getOS() == llvm::Triple::Linux &&
2231 D.getVFS().exists("/opt/rh")) {
2232 // TODO: We may want to remove this, since the functionality
2233 // can be achieved using config files.
2234 Prefixes.push_back("/opt/rh/gcc-toolset-12/root/usr");
2235 Prefixes.push_back("/opt/rh/gcc-toolset-11/root/usr");
2236 Prefixes.push_back("/opt/rh/gcc-toolset-10/root/usr");
2237 Prefixes.push_back("/opt/rh/devtoolset-12/root/usr");
2238 Prefixes.push_back("/opt/rh/devtoolset-11/root/usr");
2239 Prefixes.push_back("/opt/rh/devtoolset-10/root/usr");
2240 Prefixes.push_back("/opt/rh/devtoolset-9/root/usr");
2241 Prefixes.push_back("/opt/rh/devtoolset-8/root/usr");
2242 Prefixes.push_back("/opt/rh/devtoolset-7/root/usr");
2243 Prefixes.push_back("/opt/rh/devtoolset-6/root/usr");
2244 Prefixes.push_back("/opt/rh/devtoolset-4/root/usr");
2245 Prefixes.push_back("/opt/rh/devtoolset-3/root/usr");
2246 Prefixes.push_back("/opt/rh/devtoolset-2/root/usr");
2247 }
2248
2249 // Fall back to /usr which is used by most non-Solaris systems.
2250 Prefixes.push_back(concat(SysRoot, "/usr"));
2251}
2252
2253/*static*/ void Generic_GCC::GCCInstallationDetector::CollectLibDirsAndTriples(
2254 const llvm::Triple &TargetTriple, const llvm::Triple &BiarchTriple,
2255 SmallVectorImpl<StringRef> &LibDirs,
2256 SmallVectorImpl<StringRef> &TripleAliases,
2257 SmallVectorImpl<StringRef> &BiarchLibDirs,
2258 SmallVectorImpl<StringRef> &BiarchTripleAliases) {
2259 // Declare a bunch of static data sets that we'll select between below. These
2260 // are specifically designed to always refer to string literals to avoid any
2261 // lifetime or initialization issues.
2262 //
2263 // The *Triples variables hard code some triples so that, for example,
2264 // --target=aarch64 (incomplete triple) can detect lib/aarch64-linux-gnu.
2265 // They are not needed when the user has correct LLVM_DEFAULT_TARGET_TRIPLE
2266 // and always uses the full --target (e.g. --target=aarch64-linux-gnu). The
2267 // lists should shrink over time. Please don't add more elements to *Triples.
2268 static const char *const AArch64LibDirs[] = {"/lib64", "/lib"};
2269 static const char *const AArch64Triples[] = {
2270 "aarch64-none-linux-gnu", "aarch64-linux-gnu", "aarch64-redhat-linux",
2271 "aarch64-suse-linux"};
2272 static const char *const AArch64beLibDirs[] = {"/lib"};
2273 static const char *const AArch64beTriples[] = {"aarch64_be-none-linux-gnu",
2274 "aarch64_be-linux-gnu"};
2275
2276 static const char *const ARMLibDirs[] = {"/lib"};
2277 static const char *const ARMTriples[] = {"arm-linux-gnueabi"};
2278 static const char *const ARMHFTriples[] = {"arm-linux-gnueabihf",
2279 "armv7hl-redhat-linux-gnueabi",
2280 "armv6hl-suse-linux-gnueabi",
2281 "armv7hl-suse-linux-gnueabi"};
2282 static const char *const ARMebLibDirs[] = {"/lib"};
2283 static const char *const ARMebTriples[] = {"armeb-linux-gnueabi"};
2284 static const char *const ARMebHFTriples[] = {
2285 "armeb-linux-gnueabihf", "armebv7hl-redhat-linux-gnueabi"};
2286
2287 static const char *const AVRLibDirs[] = {"/lib"};
2288 static const char *const AVRTriples[] = {"avr"};
2289
2290 static const char *const CSKYLibDirs[] = {"/lib"};
2291 static const char *const CSKYTriples[] = {
2292 "csky-linux-gnuabiv2", "csky-linux-uclibcabiv2", "csky-elf-noneabiv2"};
2293
2294 static const char *const X86_64LibDirs[] = {"/lib64", "/lib"};
2295 static const char *const X86_64Triples[] = {
2296 "x86_64-linux-gnu", "x86_64-unknown-linux-gnu",
2297 "x86_64-pc-linux-gnu", "x86_64-redhat-linux6E",
2298 "x86_64-redhat-linux", "x86_64-suse-linux",
2299 "x86_64-manbo-linux-gnu", "x86_64-linux-gnu",
2300 "x86_64-slackware-linux", "x86_64-unknown-linux",
2301 "x86_64-amazon-linux"};
2302 static const char *const X32Triples[] = {"x86_64-linux-gnux32",
2303 "x86_64-pc-linux-gnux32"};
2304 static const char *const X32LibDirs[] = {"/libx32", "/lib"};
2305 static const char *const X86LibDirs[] = {"/lib32", "/lib"};
2306 static const char *const X86Triples[] = {
2307 "i586-linux-gnu", "i686-linux-gnu", "i686-pc-linux-gnu",
2308 "i386-redhat-linux6E", "i686-redhat-linux", "i386-redhat-linux",
2309 "i586-suse-linux", "i686-montavista-linux", "i686-gnu",
2310 };
2311
2312 static const char *const LoongArch64LibDirs[] = {"/lib64", "/lib"};
2313 static const char *const LoongArch64Triples[] = {
2314 "loongarch64-linux-gnu", "loongarch64-unknown-linux-gnu"};
2315
2316 static const char *const M68kLibDirs[] = {"/lib"};
2317 static const char *const M68kTriples[] = {
2318 "m68k-linux-gnu", "m68k-unknown-linux-gnu", "m68k-suse-linux"};
2319
2320 static const char *const MIPSLibDirs[] = {"/libo32", "/lib"};
2321 static const char *const MIPSTriples[] = {
2322 "mips-linux-gnu", "mips-mti-linux", "mips-mti-linux-gnu",
2323 "mips-img-linux-gnu", "mipsisa32r6-linux-gnu"};
2324 static const char *const MIPSELLibDirs[] = {"/libo32", "/lib"};
2325 static const char *const MIPSELTriples[] = {
2326 "mipsel-linux-gnu", "mips-img-linux-gnu", "mipsisa32r6el-linux-gnu"};
2327
2328 static const char *const MIPS64LibDirs[] = {"/lib64", "/lib"};
2329 static const char *const MIPS64Triples[] = {
2330 "mips64-linux-gnu", "mips-mti-linux-gnu",
2331 "mips-img-linux-gnu", "mips64-linux-gnuabi64",
2332 "mipsisa64r6-linux-gnu", "mipsisa64r6-linux-gnuabi64"};
2333 static const char *const MIPS64ELLibDirs[] = {"/lib64", "/lib"};
2334 static const char *const MIPS64ELTriples[] = {
2335 "mips64el-linux-gnu", "mips-mti-linux-gnu",
2336 "mips-img-linux-gnu", "mips64el-linux-gnuabi64",
2337 "mipsisa64r6el-linux-gnu", "mipsisa64r6el-linux-gnuabi64"};
2338
2339 static const char *const MIPSN32LibDirs[] = {"/lib32"};
2340 static const char *const MIPSN32Triples[] = {"mips64-linux-gnuabin32",
2341 "mipsisa64r6-linux-gnuabin32"};
2342 static const char *const MIPSN32ELLibDirs[] = {"/lib32"};
2343 static const char *const MIPSN32ELTriples[] = {
2344 "mips64el-linux-gnuabin32", "mipsisa64r6el-linux-gnuabin32"};
2345
2346 static const char *const MSP430LibDirs[] = {"/lib"};
2347 static const char *const MSP430Triples[] = {"msp430-elf"};
2348
2349 static const char *const PPCLibDirs[] = {"/lib32", "/lib"};
2350 static const char *const PPCTriples[] = {
2351 "powerpc-linux-gnu", "powerpc-unknown-linux-gnu", "powerpc-linux-gnuspe",
2352 // On 32-bit PowerPC systems running SUSE Linux, gcc is configured as a
2353 // 64-bit compiler which defaults to "-m32", hence "powerpc64-suse-linux".
2354 "powerpc64-suse-linux", "powerpc-montavista-linuxspe"};
2355 static const char *const PPCLELibDirs[] = {"/lib32", "/lib"};
2356 static const char *const PPCLETriples[] = {"powerpcle-linux-gnu",
2357 "powerpcle-unknown-linux-gnu",
2358 "powerpcle-linux-musl"};
2359
2360 static const char *const PPC64LibDirs[] = {"/lib64", "/lib"};
2361 static const char *const PPC64Triples[] = {
2362 "powerpc64-linux-gnu", "powerpc64-unknown-linux-gnu",
2363 "powerpc64-suse-linux", "ppc64-redhat-linux"};
2364 static const char *const PPC64LELibDirs[] = {"/lib64", "/lib"};
2365 static const char *const PPC64LETriples[] = {
2366 "powerpc64le-linux-gnu", "powerpc64le-unknown-linux-gnu",
2367 "powerpc64le-none-linux-gnu", "powerpc64le-suse-linux",
2368 "ppc64le-redhat-linux"};
2369
2370 static const char *const RISCV32LibDirs[] = {"/lib32", "/lib"};
2371 static const char *const RISCV32Triples[] = {"riscv32-unknown-linux-gnu",
2372 "riscv32-linux-gnu",
2373 "riscv32-unknown-elf"};
2374 static const char *const RISCV64LibDirs[] = {"/lib64", "/lib"};
2375 static const char *const RISCV64Triples[] = {"riscv64-unknown-linux-gnu",
2376 "riscv64-linux-gnu",
2377 "riscv64-unknown-elf"};
2378
2379 static const char *const SPARCv8LibDirs[] = {"/lib32", "/lib"};
2380 static const char *const SPARCv8Triples[] = {"sparc-linux-gnu",
2381 "sparcv8-linux-gnu"};
2382 static const char *const SPARCv9LibDirs[] = {"/lib64", "/lib"};
2383 static const char *const SPARCv9Triples[] = {"sparc64-linux-gnu",
2384 "sparcv9-linux-gnu"};
2385
2386 static const char *const SystemZLibDirs[] = {"/lib64", "/lib"};
2387 static const char *const SystemZTriples[] = {
2388 "s390x-linux-gnu", "s390x-unknown-linux-gnu", "s390x-ibm-linux-gnu",
2389 "s390x-suse-linux", "s390x-redhat-linux"};
2390
2391
2392 using std::begin;
2393 using std::end;
2394
2395 if (TargetTriple.getOS() == llvm::Triple::Solaris) {
2396 static const char *const SolarisLibDirs[] = {"/lib"};
2397 static const char *const SolarisSparcV8Triples[] = {
2398 "sparc-sun-solaris2.11", "sparc-sun-solaris2.12"};
2399 static const char *const SolarisSparcV9Triples[] = {
2400 "sparcv9-sun-solaris2.11", "sparcv9-sun-solaris2.12"};
2401 static const char *const SolarisX86Triples[] = {"i386-pc-solaris2.11",
2402 "i386-pc-solaris2.12"};
2403 static const char *const SolarisX86_64Triples[] = {"x86_64-pc-solaris2.11",
2404 "x86_64-pc-solaris2.12"};
2405 LibDirs.append(begin(SolarisLibDirs), end(SolarisLibDirs));
2406 BiarchLibDirs.append(begin(SolarisLibDirs), end(SolarisLibDirs));
2407 switch (TargetTriple.getArch()) {
2408 case llvm::Triple::x86:
2409 TripleAliases.append(begin(SolarisX86Triples), end(SolarisX86Triples));
2410 BiarchTripleAliases.append(begin(SolarisX86_64Triples),
2411 end(SolarisX86_64Triples));
2412 break;
2413 case llvm::Triple::x86_64:
2414 TripleAliases.append(begin(SolarisX86_64Triples),
2415 end(SolarisX86_64Triples));
2416 BiarchTripleAliases.append(begin(SolarisX86Triples),
2417 end(SolarisX86Triples));
2418 break;
2419 case llvm::Triple::sparc:
2420 TripleAliases.append(begin(SolarisSparcV8Triples),
2421 end(SolarisSparcV8Triples));
2422 BiarchTripleAliases.append(begin(SolarisSparcV9Triples),
2423 end(SolarisSparcV9Triples));
2424 break;
2425 case llvm::Triple::sparcv9:
2426 TripleAliases.append(begin(SolarisSparcV9Triples),
2427 end(SolarisSparcV9Triples));
2428 BiarchTripleAliases.append(begin(SolarisSparcV8Triples),
2429 end(SolarisSparcV8Triples));
2430 break;
2431 default:
2432 break;
2433 }
2434 return;
2435 }
2436
2437 // Android targets should not use GNU/Linux tools or libraries.
2438 if (TargetTriple.isAndroid()) {
2439 static const char *const AArch64AndroidTriples[] = {
2440 "aarch64-linux-android"};
2441 static const char *const ARMAndroidTriples[] = {"arm-linux-androideabi"};
2442 static const char *const X86AndroidTriples[] = {"i686-linux-android"};
2443 static const char *const X86_64AndroidTriples[] = {"x86_64-linux-android"};
2444
2445 switch (TargetTriple.getArch()) {
2446 case llvm::Triple::aarch64:
2447 LibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
2448 TripleAliases.append(begin(AArch64AndroidTriples),
2449 end(AArch64AndroidTriples));
2450 break;
2451 case llvm::Triple::arm:
2452 case llvm::Triple::thumb:
2453 LibDirs.append(begin(ARMLibDirs), end(ARMLibDirs));
2454 TripleAliases.append(begin(ARMAndroidTriples), end(ARMAndroidTriples));
2455 break;
2456 case llvm::Triple::x86_64:
2457 LibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2458 TripleAliases.append(begin(X86_64AndroidTriples),
2459 end(X86_64AndroidTriples));
2460 BiarchLibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2461 BiarchTripleAliases.append(begin(X86AndroidTriples),
2462 end(X86AndroidTriples));
2463 break;
2464 case llvm::Triple::x86:
2465 LibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2466 TripleAliases.append(begin(X86AndroidTriples), end(X86AndroidTriples));
2467 BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2468 BiarchTripleAliases.append(begin(X86_64AndroidTriples),
2469 end(X86_64AndroidTriples));
2470 break;
2471 default:
2472 break;
2473 }
2474
2475 return;
2476 }
2477
2478 switch (TargetTriple.getArch()) {
2479 case llvm::Triple::aarch64:
2480 LibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
2481 TripleAliases.append(begin(AArch64Triples), end(AArch64Triples));
2482 BiarchLibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
2483 BiarchTripleAliases.append(begin(AArch64Triples), end(AArch64Triples));
2484 break;
2485 case llvm::Triple::aarch64_be:
2486 LibDirs.append(begin(AArch64beLibDirs), end(AArch64beLibDirs));
2487 TripleAliases.append(begin(AArch64beTriples), end(AArch64beTriples));
2488 BiarchLibDirs.append(begin(AArch64beLibDirs), end(AArch64beLibDirs));
2489 BiarchTripleAliases.append(begin(AArch64beTriples), end(AArch64beTriples));
2490 break;
2491 case llvm::Triple::arm:
2492 case llvm::Triple::thumb:
2493 LibDirs.append(begin(ARMLibDirs), end(ARMLibDirs));
2494 if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF) {
2495 TripleAliases.append(begin(ARMHFTriples), end(ARMHFTriples));
2496 } else {
2497 TripleAliases.append(begin(ARMTriples), end(ARMTriples));
2498 }
2499 break;
2500 case llvm::Triple::armeb:
2501 case llvm::Triple::thumbeb:
2502 LibDirs.append(begin(ARMebLibDirs), end(ARMebLibDirs));
2503 if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF) {
2504 TripleAliases.append(begin(ARMebHFTriples), end(ARMebHFTriples));
2505 } else {
2506 TripleAliases.append(begin(ARMebTriples), end(ARMebTriples));
2507 }
2508 break;
2509 case llvm::Triple::avr:
2510 LibDirs.append(begin(AVRLibDirs), end(AVRLibDirs));
2511 TripleAliases.append(begin(AVRTriples), end(AVRTriples));
2512 break;
2513 case llvm::Triple::csky:
2514 LibDirs.append(begin(CSKYLibDirs), end(CSKYLibDirs));
2515 TripleAliases.append(begin(CSKYTriples), end(CSKYTriples));
2516 break;
2517 case llvm::Triple::x86_64:
2518 if (TargetTriple.isX32()) {
2519 LibDirs.append(begin(X32LibDirs), end(X32LibDirs));
2520 TripleAliases.append(begin(X32Triples), end(X32Triples));
2521 BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2522 BiarchTripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
2523 } else {
2524 LibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2525 TripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
2526 BiarchLibDirs.append(begin(X32LibDirs), end(X32LibDirs));
2527 BiarchTripleAliases.append(begin(X32Triples), end(X32Triples));
2528 }
2529 BiarchLibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2530 BiarchTripleAliases.append(begin(X86Triples), end(X86Triples));
2531 break;
2532 case llvm::Triple::x86:
2533 LibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2534 // MCU toolchain is 32 bit only and its triple alias is TargetTriple
2535 // itself, which will be appended below.
2536 if (!TargetTriple.isOSIAMCU()) {
2537 TripleAliases.append(begin(X86Triples), end(X86Triples));
2538 BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2539 BiarchTripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
2540 BiarchLibDirs.append(begin(X32LibDirs), end(X32LibDirs));
2541 BiarchTripleAliases.append(begin(X32Triples), end(X32Triples));
2542 }
2543 break;
2544 // TODO: Handle loongarch32.
2545 case llvm::Triple::loongarch64:
2546 LibDirs.append(begin(LoongArch64LibDirs), end(LoongArch64LibDirs));
2547 TripleAliases.append(begin(LoongArch64Triples), end(LoongArch64Triples));
2548 break;
2549 case llvm::Triple::m68k:
2550 LibDirs.append(begin(M68kLibDirs), end(M68kLibDirs));
2551 TripleAliases.append(begin(M68kTriples), end(M68kTriples));
2552 break;
2553 case llvm::Triple::mips:
2554 LibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs));
2555 TripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2556 BiarchLibDirs.append(begin(MIPS64LibDirs), end(MIPS64LibDirs));
2557 BiarchTripleAliases.append(begin(MIPS64Triples), end(MIPS64Triples));
2558 BiarchLibDirs.append(begin(MIPSN32LibDirs), end(MIPSN32LibDirs));
2559 BiarchTripleAliases.append(begin(MIPSN32Triples), end(MIPSN32Triples));
2560 break;
2561 case llvm::Triple::mipsel:
2562 LibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs));
2563 TripleAliases.append(begin(MIPSELTriples), end(MIPSELTriples));
2564 TripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2565 BiarchLibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs));
2566 BiarchTripleAliases.append(begin(MIPS64ELTriples), end(MIPS64ELTriples));
2567 BiarchLibDirs.append(begin(MIPSN32ELLibDirs), end(MIPSN32ELLibDirs));
2568 BiarchTripleAliases.append(begin(MIPSN32ELTriples), end(MIPSN32ELTriples));
2569 break;
2570 case llvm::Triple::mips64:
2571 LibDirs.append(begin(MIPS64LibDirs), end(MIPS64LibDirs));
2572 TripleAliases.append(begin(MIPS64Triples), end(MIPS64Triples));
2573 BiarchLibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs));
2574 BiarchTripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2575 BiarchLibDirs.append(begin(MIPSN32LibDirs), end(MIPSN32LibDirs));
2576 BiarchTripleAliases.append(begin(MIPSN32Triples), end(MIPSN32Triples));
2577 break;
2578 case llvm::Triple::mips64el:
2579 LibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs));
2580 TripleAliases.append(begin(MIPS64ELTriples), end(MIPS64ELTriples));
2581 BiarchLibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs));
2582 BiarchTripleAliases.append(begin(MIPSELTriples), end(MIPSELTriples));
2583 BiarchLibDirs.append(begin(MIPSN32ELLibDirs), end(MIPSN32ELLibDirs));
2584 BiarchTripleAliases.append(begin(MIPSN32ELTriples), end(MIPSN32ELTriples));
2585 BiarchTripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2586 break;
2587 case llvm::Triple::msp430:
2588 LibDirs.append(begin(MSP430LibDirs), end(MSP430LibDirs));
2589 TripleAliases.append(begin(MSP430Triples), end(MSP430Triples));
2590 break;
2591 case llvm::Triple::ppc:
2592 LibDirs.append(begin(PPCLibDirs), end(PPCLibDirs));
2593 TripleAliases.append(begin(PPCTriples), end(PPCTriples));
2594 BiarchLibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs));
2595 BiarchTripleAliases.append(begin(PPC64Triples), end(PPC64Triples));
2596 break;
2597 case llvm::Triple::ppcle:
2598 LibDirs.append(begin(PPCLELibDirs), end(PPCLELibDirs));
2599 TripleAliases.append(begin(PPCLETriples), end(PPCLETriples));
2600 BiarchLibDirs.append(begin(PPC64LELibDirs), end(PPC64LELibDirs));
2601 BiarchTripleAliases.append(begin(PPC64LETriples), end(PPC64LETriples));
2602 break;
2603 case llvm::Triple::ppc64:
2604 LibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs));
2605 TripleAliases.append(begin(PPC64Triples), end(PPC64Triples));
2606 BiarchLibDirs.append(begin(PPCLibDirs), end(PPCLibDirs));
2607 BiarchTripleAliases.append(begin(PPCTriples), end(PPCTriples));
2608 break;
2609 case llvm::Triple::ppc64le:
2610 LibDirs.append(begin(PPC64LELibDirs), end(PPC64LELibDirs));
2611 TripleAliases.append(begin(PPC64LETriples), end(PPC64LETriples));
2612 BiarchLibDirs.append(begin(PPCLELibDirs), end(PPCLELibDirs));
2613 BiarchTripleAliases.append(begin(PPCLETriples), end(PPCLETriples));
2614 break;
2615 case llvm::Triple::riscv32:
2616 LibDirs.append(begin(RISCV32LibDirs), end(RISCV32LibDirs));
2617 TripleAliases.append(begin(RISCV32Triples), end(RISCV32Triples));
2618 BiarchLibDirs.append(begin(RISCV64LibDirs), end(RISCV64LibDirs));
2619 BiarchTripleAliases.append(begin(RISCV64Triples), end(RISCV64Triples));
2620 break;
2621 case llvm::Triple::riscv64:
2622 LibDirs.append(begin(RISCV64LibDirs), end(RISCV64LibDirs));
2623 TripleAliases.append(begin(RISCV64Triples), end(RISCV64Triples));
2624 BiarchLibDirs.append(begin(RISCV32LibDirs), end(RISCV32LibDirs));
2625 BiarchTripleAliases.append(begin(RISCV32Triples), end(RISCV32Triples));
2626 break;
2627 case llvm::Triple::sparc:
2628 case llvm::Triple::sparcel:
2629 LibDirs.append(begin(SPARCv8LibDirs), end(SPARCv8LibDirs));
2630 TripleAliases.append(begin(SPARCv8Triples), end(SPARCv8Triples));
2631 BiarchLibDirs.append(begin(SPARCv9LibDirs), end(SPARCv9LibDirs));
2632 BiarchTripleAliases.append(begin(SPARCv9Triples), end(SPARCv9Triples));
2633 break;
2634 case llvm::Triple::sparcv9:
2635 LibDirs.append(begin(SPARCv9LibDirs), end(SPARCv9LibDirs));
2636 TripleAliases.append(begin(SPARCv9Triples), end(SPARCv9Triples));
2637 BiarchLibDirs.append(begin(SPARCv8LibDirs), end(SPARCv8LibDirs));
2638 BiarchTripleAliases.append(begin(SPARCv8Triples), end(SPARCv8Triples));
2639 break;
2640 case llvm::Triple::systemz:
2641 LibDirs.append(begin(SystemZLibDirs), end(SystemZLibDirs));
2642 TripleAliases.append(begin(SystemZTriples), end(SystemZTriples));
2643 break;
2644 default:
2645 // By default, just rely on the standard lib directories and the original
2646 // triple.
2647 break;
2648 }
2649
2650 // Always append the drivers target triple to the end, in case it doesn't
2651 // match any of our aliases.
2652 TripleAliases.push_back(TargetTriple.str());
2653
2654 // Also include the multiarch variant if it's different.
2655 if (TargetTriple.str() != BiarchTriple.str())
2656 BiarchTripleAliases.push_back(BiarchTriple.str());
2657}
2658
2659bool Generic_GCC::GCCInstallationDetector::ScanGCCForMultilibs(
2660 const llvm::Triple &TargetTriple, const ArgList &Args,
2661 StringRef Path, bool NeedsBiarchSuffix) {
2662 llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
2663 DetectedMultilibs Detected;
2664
2665 // Android standalone toolchain could have multilibs for ARM and Thumb.
2666 // Debian mips multilibs behave more like the rest of the biarch ones,
2667 // so handle them there
2668 if (isArmOrThumbArch(TargetArch) && TargetTriple.isAndroid()) {
2669 // It should also work without multilibs in a simplified toolchain.
2670 findAndroidArmMultilibs(D, TargetTriple, Path, Args, Detected);
2671 } else if (TargetTriple.isCSKY()) {
2672 findCSKYMultilibs(D, TargetTriple, Path, Args, Detected);
2673 } else if (TargetTriple.isMIPS()) {
2674 if (!findMIPSMultilibs(D, TargetTriple, Path, Args, Detected))
2675 return false;
2676 } else if (TargetTriple.isRISCV()) {
2677 findRISCVMultilibs(D, TargetTriple, Path, Args, Detected);
2678 } else if (isMSP430(TargetArch)) {
2679 findMSP430Multilibs(D, TargetTriple, Path, Args, Detected);
2680 } else if (TargetArch == llvm::Triple::avr) {
2681 // AVR has no multilibs.
2682 } else if (!findBiarchMultilibs(D, TargetTriple, Path, Args,
2683 NeedsBiarchSuffix, Detected)) {
2684 return false;
2685 }
2686
2687 Multilibs = Detected.Multilibs;
2688 SelectedMultilib = Detected.SelectedMultilib;
2689 BiarchSibling = Detected.BiarchSibling;
2690
2691 return true;
2692}
2693
2694void Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple(
2695 const llvm::Triple &TargetTriple, const ArgList &Args,
2696 const std::string &LibDir, StringRef CandidateTriple,
2697 bool NeedsBiarchSuffix, bool GCCDirExists, bool GCCCrossDirExists) {
2698 // Locations relative to the system lib directory where GCC's triple-specific
2699 // directories might reside.
2700 struct GCCLibSuffix {
2701 // Path from system lib directory to GCC triple-specific directory.
2702 std::string LibSuffix;
2703 // Path from GCC triple-specific directory back to system lib directory.
2704 // This is one '..' component per component in LibSuffix.
2705 StringRef ReversePath;
2706 // Whether this library suffix is relevant for the triple.
2707 bool Active;
2708 } Suffixes[] = {
2709 // This is the normal place.
2710 {"gcc/" + CandidateTriple.str(), "../..", GCCDirExists},
2711
2712 // Debian puts cross-compilers in gcc-cross.
2713 {"gcc-cross/" + CandidateTriple.str(), "../..", GCCCrossDirExists},
2714
2715 // The Freescale PPC SDK has the gcc libraries in
2716 // <sysroot>/usr/lib/<triple>/x.y.z so have a look there as well. Only do
2717 // this on Freescale triples, though, since some systems put a *lot* of
2718 // files in that location, not just GCC installation data.
2719 {CandidateTriple.str(), "..",
2720 TargetTriple.getVendor() == llvm::Triple::Freescale ||
2721 TargetTriple.getVendor() == llvm::Triple::OpenEmbedded}};
2722
2723 for (auto &Suffix : Suffixes) {
2724 if (!Suffix.Active)
2725 continue;
2726
2727 StringRef LibSuffix = Suffix.LibSuffix;
2728 std::error_code EC;
2729 for (llvm::vfs::directory_iterator
2730 LI = D.getVFS().dir_begin(LibDir + "/" + LibSuffix, EC),
2731 LE;
2732 !EC && LI != LE; LI = LI.increment(EC)) {
2733 StringRef VersionText = llvm::sys::path::filename(LI->path());
2734 GCCVersion CandidateVersion = GCCVersion::Parse(VersionText);
2735 if (CandidateVersion.Major != -1) // Filter obviously bad entries.
2736 if (!CandidateGCCInstallPaths.insert(std::string(LI->path())).second)
2737 continue; // Saw this path before; no need to look at it again.
2738 if (CandidateVersion.isOlderThan(4, 1, 1))
2739 continue;
2740 if (CandidateVersion <= Version)
2741 continue;
2742
2743 if (!ScanGCCForMultilibs(TargetTriple, Args, LI->path(),
2744 NeedsBiarchSuffix))
2745 continue;
2746
2747 Version = CandidateVersion;
2748 GCCTriple.setTriple(CandidateTriple);
2749 // FIXME: We hack together the directory name here instead of
2750 // using LI to ensure stable path separators across Windows and
2751 // Linux.
2752 GCCInstallPath = (LibDir + "/" + LibSuffix + "/" + VersionText).str();
2753 GCCParentLibPath = (GCCInstallPath + "/../" + Suffix.ReversePath).str();
2754 IsValid = true;
2755 }
2756 }
2757}
2758
2759bool Generic_GCC::GCCInstallationDetector::ScanGentooConfigs(
2760 const llvm::Triple &TargetTriple, const ArgList &Args,
2761 const SmallVectorImpl<StringRef> &CandidateTriples,
2762 const SmallVectorImpl<StringRef> &CandidateBiarchTriples) {
2763 if (!D.getVFS().exists(concat(D.SysRoot, GentooConfigDir)))
2764 return false;
2765
2766 for (StringRef CandidateTriple : CandidateTriples) {
2767 if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple))
2768 return true;
2769 }
2770
2771 for (StringRef CandidateTriple : CandidateBiarchTriples) {
2772 if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple, true))
2773 return true;
2774 }
2775 return false;
2776}
2777
2778bool Generic_GCC::GCCInstallationDetector::ScanGentooGccConfig(
2779 const llvm::Triple &TargetTriple, const ArgList &Args,
2780 StringRef CandidateTriple, bool NeedsBiarchSuffix) {
2781 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> File =
2782 D.getVFS().getBufferForFile(concat(D.SysRoot, GentooConfigDir,
2783 "/config-" + CandidateTriple.str()));
2784 if (File) {
2785 SmallVector<StringRef, 2> Lines;
2786 File.get()->getBuffer().split(Lines, "\n");
2787 for (StringRef Line : Lines) {
2788 Line = Line.trim();
2789 // CURRENT=triple-version
2790 if (!Line.consume_front("CURRENT="))
2791 continue;
2792 // Process the config file pointed to by CURRENT.
2793 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> ConfigFile =
2794 D.getVFS().getBufferForFile(
2795 concat(D.SysRoot, GentooConfigDir, "/" + Line));
2796 std::pair<StringRef, StringRef> ActiveVersion = Line.rsplit('-');
2797 // List of paths to scan for libraries.
2798 SmallVector<StringRef, 4> GentooScanPaths;
2799 // Scan the Config file to find installed GCC libraries path.
2800 // Typical content of the GCC config file:
2801 // LDPATH="/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.x:/usr/lib/gcc/
2802 // (continued from previous line) x86_64-pc-linux-gnu/4.9.x/32"
2803 // MANPATH="/usr/share/gcc-data/x86_64-pc-linux-gnu/4.9.x/man"
2804 // INFOPATH="/usr/share/gcc-data/x86_64-pc-linux-gnu/4.9.x/info"
2805 // STDCXX_INCDIR="/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.x/include/g++-v4"
2806 // We are looking for the paths listed in LDPATH=... .
2807 if (ConfigFile) {
2808 SmallVector<StringRef, 2> ConfigLines;
2809 ConfigFile.get()->getBuffer().split(ConfigLines, "\n");
2810 for (StringRef ConfLine : ConfigLines) {
2811 ConfLine = ConfLine.trim();
2812 if (ConfLine.consume_front("LDPATH=")) {
2813 // Drop '"' from front and back if present.
2814 ConfLine.consume_back("\"");
2815 ConfLine.consume_front("\"");
2816 // Get all paths sperated by ':'
2817 ConfLine.split(GentooScanPaths, ':', -1, /*AllowEmpty*/ false);
2818 }
2819 }
2820 }
2821 // Test the path based on the version in /etc/env.d/gcc/config-{tuple}.
2822 std::string basePath = "/usr/lib/gcc/" + ActiveVersion.first.str() + "/"
2823 + ActiveVersion.second.str();
2824 GentooScanPaths.push_back(StringRef(basePath));
2825
2826 // Scan all paths for GCC libraries.
2827 for (const auto &GentooScanPath : GentooScanPaths) {
2828 std::string GentooPath = concat(D.SysRoot, GentooScanPath);
2829 if (D.getVFS().exists(GentooPath + "/crtbegin.o")) {
2830 if (!ScanGCCForMultilibs(TargetTriple, Args, GentooPath,
2831 NeedsBiarchSuffix))
2832 continue;
2833
2834 Version = GCCVersion::Parse(ActiveVersion.second);
2835 GCCInstallPath = GentooPath;
2836 GCCParentLibPath = GentooPath + std::string("/../../..");
2837 GCCTriple.setTriple(ActiveVersion.first);
2838 IsValid = true;
2839 return true;
2840 }
2841 }
2842 }
2843 }
2844
2845 return false;
2846}
2847
2848Generic_GCC::Generic_GCC(const Driver &D, const llvm::Triple &Triple,
2849 const ArgList &Args)
2850 : ToolChain(D, Triple, Args), GCCInstallation(D),
2851 CudaInstallation(D, Triple, Args), RocmInstallation(D, Triple, Args) {
2852 getProgramPaths().push_back(getDriver().getInstalledDir());
2853 if (getDriver().getInstalledDir() != getDriver().Dir)
2854 getProgramPaths().push_back(getDriver().Dir);
2855}
2856
2857Generic_GCC::~Generic_GCC() {}
2858
2859Tool *Generic_GCC::getTool(Action::ActionClass AC) const {
2860 switch (AC) {
2861 case Action::PreprocessJobClass:
2862 if (!Preprocess)
2863 Preprocess.reset(new clang::driver::tools::gcc::Preprocessor(*this));
2864 return Preprocess.get();
2865 case Action::CompileJobClass:
2866 if (!Compile)
2867 Compile.reset(new tools::gcc::Compiler(*this));
2868 return Compile.get();
2869 default:
2870 return ToolChain::getTool(AC);
2871 }
2872}
2873
2874Tool *Generic_GCC::buildAssembler() const {
2875 return new tools::gnutools::Assembler(*this);
2876}
2877
2878Tool *Generic_GCC::buildLinker() const { return new tools::gcc::Linker(*this); }
2879
2880void Generic_GCC::printVerboseInfo(raw_ostream &OS) const {
2881 // Print the information about how we detected the GCC installation.
2882 GCCInstallation.print(OS);
2883 CudaInstallation->print(OS);
2884 RocmInstallation->print(OS);
2885}
2886
2887ToolChain::UnwindTableLevel
2888Generic_GCC::getDefaultUnwindTableLevel(const ArgList &Args) const {
2889 switch (getArch()) {
2890 case llvm::Triple::aarch64:
2891 case llvm::Triple::ppc:
2892 case llvm::Triple::ppcle:
2893 case llvm::Triple::ppc64:
2894 case llvm::Triple::ppc64le:
2895 case llvm::Triple::riscv32:
2896 case llvm::Triple::riscv64:
2897 case llvm::Triple::x86:
2898 case llvm::Triple::x86_64:
2899 return UnwindTableLevel::Asynchronous;
2900 default:
2901 return UnwindTableLevel::None;
2902 }
2903}
2904
2905bool Generic_GCC::isPICDefault() const {
2906 switch (getArch()) {
2907 case llvm::Triple::x86_64:
2908 return getTriple().isOSWindows();
2909 case llvm::Triple::mips64:
2910 case llvm::Triple::mips64el:
2911 return true;
2912 default:
2913 return false;
2914 }
2915}
2916
2917bool Generic_GCC::isPIEDefault(const llvm::opt::ArgList &Args) const {
2918 return false;
2919}
2920
2921bool Generic_GCC::isPICDefaultForced() const {
2922 return getArch() == llvm::Triple::x86_64 && getTriple().isOSWindows();
2923}
2924
2925bool Generic_GCC::IsIntegratedAssemblerDefault() const {
2926 switch (getTriple().getArch()) {
2927 case llvm::Triple::nvptx:
2928 case llvm::Triple::nvptx64:
2929 case llvm::Triple::xcore:
2930 return false;
2931 default:
2932 return getTriple().getVendor() != llvm::Triple::Myriad;
2933 }
2934}
2935
2936void Generic_GCC::PushPPaths(ToolChain::path_list &PPaths) {
2937 // Cross-compiling binutils and GCC installations (vanilla and openSUSE at
2938 // least) put various tools in a triple-prefixed directory off of the parent
2939 // of the GCC installation. We use the GCC triple here to ensure that we end
2940 // up with tools that support the same amount of cross compiling as the
2941 // detected GCC installation. For example, if we find a GCC installation
2942 // targeting x86_64, but it is a bi-arch GCC installation, it can also be
2943 // used to target i386.
2944 if (GCCInstallation.isValid()) {
2945 PPaths.push_back(Twine(GCCInstallation.getParentLibPath() + "/../" +
2946 GCCInstallation.getTriple().str() + "/bin")
2947 .str());
2948 }
2949}
2950
2951void Generic_GCC::AddMultilibPaths(const Driver &D,
2952 const std::string &SysRoot,
2953 const std::string &OSLibDir,
2954 const std::string &MultiarchTriple,
2955 path_list &Paths) {
2956 // Add the multilib suffixed paths where they are available.
2957 if (GCCInstallation.isValid()) {
2958 const llvm::Triple &GCCTriple = GCCInstallation.getTriple();
2959 const std::string &LibPath =
2960 std::string(GCCInstallation.getParentLibPath());
2961
2962 // Sourcery CodeBench MIPS toolchain holds some libraries under
2963 // a biarch-like suffix of the GCC installation.
2964 if (const auto &PathsCallback = Multilibs.filePathsCallback())
2965 for (const auto &Path : PathsCallback(SelectedMultilib))
2966 addPathIfExists(D, GCCInstallation.getInstallPath() + Path, Paths);
2967
2968 // Add lib/gcc/$triple/$version, with an optional /multilib suffix.
2969 addPathIfExists(
2970 D, GCCInstallation.getInstallPath() + SelectedMultilib.gccSuffix(),
2971 Paths);
2972
2973 // Add lib/gcc/$triple/$libdir
2974 // For GCC built with --enable-version-specific-runtime-libs.
2975 addPathIfExists(D, GCCInstallation.getInstallPath() + "/../" + OSLibDir,
2976 Paths);
2977
2978 // GCC cross compiling toolchains will install target libraries which ship
2979 // as part of the toolchain under <prefix>/<triple>/<libdir> rather than as
2980 // any part of the GCC installation in
2981 // <prefix>/<libdir>/gcc/<triple>/<version>. This decision is somewhat
2982 // debatable, but is the reality today. We need to search this tree even
2983 // when we have a sysroot somewhere else. It is the responsibility of
2984 // whomever is doing the cross build targeting a sysroot using a GCC
2985 // installation that is *not* within the system root to ensure two things:
2986 //
2987 // 1) Any DSOs that are linked in from this tree or from the install path
2988 // above must be present on the system root and found via an
2989 // appropriate rpath.
2990 // 2) There must not be libraries installed into
2991 // <prefix>/<triple>/<libdir> unless they should be preferred over
2992 // those within the system root.
2993 //
2994 // Note that this matches the GCC behavior. See the below comment for where
2995 // Clang diverges from GCC's behavior.
2996 addPathIfExists(D,
2997 LibPath + "/../" + GCCTriple.str() + "/lib/../" + OSLibDir +
2998 SelectedMultilib.osSuffix(),
2999 Paths);
3000
3001 // If the GCC installation we found is inside of the sysroot, we want to
3002 // prefer libraries installed in the parent prefix of the GCC installation.
3003 // It is important to *not* use these paths when the GCC installation is
3004 // outside of the system root as that can pick up unintended libraries.
3005 // This usually happens when there is an external cross compiler on the
3006 // host system, and a more minimal sysroot available that is the target of
3007 // the cross. Note that GCC does include some of these directories in some
3008 // configurations but this seems somewhere between questionable and simply
3009 // a bug.
3010 if (StringRef(LibPath).startswith(SysRoot))
3011 addPathIfExists(D, LibPath + "/../" + OSLibDir, Paths);
3012 }
3013}
3014
3015void Generic_GCC::AddMultiarchPaths(const Driver &D,
3016 const std::string &SysRoot,
3017 const std::string &OSLibDir,
3018 path_list &Paths) {
3019 if (GCCInstallation.isValid()) {
3020 const std::string &LibPath =
3021 std::string(GCCInstallation.getParentLibPath());
3022 const llvm::Triple &GCCTriple = GCCInstallation.getTriple();
3023 const Multilib &Multilib = GCCInstallation.getMultilib();
3024 addPathIfExists(
3025 D, LibPath + "/../" + GCCTriple.str() + "/lib" + Multilib.osSuffix(),
3026 Paths);
3027 }
3028}
3029
3030void Generic_GCC::AddMultilibIncludeArgs(const ArgList &DriverArgs,
3031 ArgStringList &CC1Args) const {
3032 // Add include directories specific to the selected multilib set and multilib.
3033 if (!GCCInstallation.isValid())
3034 return;
3035 // gcc TOOL_INCLUDE_DIR.
3036 const llvm::Triple &GCCTriple = GCCInstallation.getTriple();
3037 std::string LibPath(GCCInstallation.getParentLibPath());
3038 addSystemInclude(DriverArgs, CC1Args,
3039 Twine(LibPath) + "/../" + GCCTriple.str() + "/include");
3040
3041 const auto &Callback = Multilibs.includeDirsCallback();
3042 if (Callback) {
3043 for (const auto &Path : Callback(GCCInstallation.getMultilib()))
3044 addExternCSystemIncludeIfExists(DriverArgs, CC1Args,
3045 GCCInstallation.getInstallPath() + Path);
3046 }
3047}
3048
3049void Generic_GCC::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
3050 ArgStringList &CC1Args) const {
3051 if (DriverArgs.hasArg(options::OPT_nostdinc, options::OPT_nostdincxx,
3052 options::OPT_nostdlibinc))
3053 return;
3054
3055 switch (GetCXXStdlibType(DriverArgs)) {
3056 case ToolChain::CST_Libcxx:
3057 addLibCxxIncludePaths(DriverArgs, CC1Args);
3058 break;
3059
3060 case ToolChain::CST_Libstdcxx:
3061 addLibStdCxxIncludePaths(DriverArgs, CC1Args);
3062 break;
3063 }
3064}
3065
3066void
3067Generic_GCC::addLibCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
3068 llvm::opt::ArgStringList &CC1Args) const {
3069 const Driver &D = getDriver();
3070 std::string SysRoot = computeSysRoot();
3071 std::string Target = getTripleString();
3072
3073 auto AddIncludePath = [&](std::string Path) {
3074 std::string Version = detectLibcxxVersion(Path);
3075 if (Version.empty())
3076 return false;
3077
3078 // First add the per-target include path if it exists.
3079 std::string TargetDir = Path + "/" + Target + "/c++/" + Version;
3080 if (D.getVFS().exists(TargetDir))
3081 addSystemInclude(DriverArgs, CC1Args, TargetDir);
3082
3083 // Second add the generic one.
3084 addSystemInclude(DriverArgs, CC1Args, Path + "/c++/" + Version);
3085 return true;
3086 };
3087
3088 // Android never uses the libc++ headers installed alongside the toolchain,
3089 // which are generally incompatible with the NDK libraries anyway.
3090 if (!getTriple().isAndroid())
3091 if (AddIncludePath(getDriver().Dir + "/../include"))
3092 return;
3093 // If this is a development, non-installed, clang, libcxx will
3094 // not be found at ../include/c++ but it likely to be found at
3095 // one of the following two locations:
3096 if (AddIncludePath(concat(SysRoot, "/usr/local/include")))
3097 return;
3098 if (AddIncludePath(concat(SysRoot, "/usr/include")))
3099 return;
3100}
3101
3102bool Generic_GCC::addLibStdCXXIncludePaths(Twine IncludeDir, StringRef Triple,
3103 Twine IncludeSuffix,
3104 const llvm::opt::ArgList &DriverArgs,
3105 llvm::opt::ArgStringList &CC1Args,
3106 bool DetectDebian) const {
3107 if (!getVFS().exists(IncludeDir))
3108 return false;
3109
3110 // Debian native gcc uses g++-multiarch-incdir.diff which uses
3111 // include/x86_64-linux-gnu/c++/10$IncludeSuffix instead of
3112 // include/c++/10/x86_64-linux-gnu$IncludeSuffix.
3113 std::string Dir = IncludeDir.str();
3114 StringRef Include =
3115 llvm::sys::path::parent_path(llvm::sys::path::parent_path(Dir));
3116 std::string Path =
3117 (Include + "/" + Triple + Dir.substr(Include.size()) + IncludeSuffix)
3118 .str();
3119 if (DetectDebian && !getVFS().exists(Path))
3120 return false;
3121
3122 // GPLUSPLUS_INCLUDE_DIR
3123 addSystemInclude(DriverArgs, CC1Args, IncludeDir);
3124 // GPLUSPLUS_TOOL_INCLUDE_DIR. If Triple is not empty, add a target-dependent
3125 // include directory.
3126 if (DetectDebian)
3127 addSystemInclude(DriverArgs, CC1Args, Path);
3128 else if (!Triple.empty())
3129 addSystemInclude(DriverArgs, CC1Args,
3130 IncludeDir + "/" + Triple + IncludeSuffix);
3131 // GPLUSPLUS_BACKWARD_INCLUDE_DIR
3132 addSystemInclude(DriverArgs, CC1Args, IncludeDir + "/backward");
3133 return true;
3134}
3135
3136bool Generic_GCC::addGCCLibStdCxxIncludePaths(
3137 const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args,
3138 StringRef DebianMultiarch) const {
3139 assert(GCCInstallation.isValid());
3140
3141 // By default, look for the C++ headers in an include directory adjacent to
3142 // the lib directory of the GCC installation. Note that this is expect to be
3143 // equivalent to '/usr/include/c++/X.Y' in almost all cases.
3144 StringRef LibDir = GCCInstallation.getParentLibPath();
3145 StringRef InstallDir = GCCInstallation.getInstallPath();
3146 StringRef TripleStr = GCCInstallation.getTriple().str();
3147 const Multilib &Multilib = GCCInstallation.getMultilib();
3148 const GCCVersion &Version = GCCInstallation.getVersion();
3149
3150 // Try /../$triple/include/c++/$version (gcc --print-multiarch is not empty).
3151 if (addLibStdCXXIncludePaths(
3152 LibDir.str() + "/../" + TripleStr + "/include/c++/" + Version.Text,
3153 TripleStr, Multilib.includeSuffix(), DriverArgs, CC1Args))
3154 return true;
3155
3156 // Try /gcc/$triple/$version/include/c++/ (gcc --print-multiarch is not
3157 // empty). Like above but for GCC built with
3158 // --enable-version-specific-runtime-libs.
3159 if (addLibStdCXXIncludePaths(LibDir.str() + "/gcc/" + TripleStr + "/" +
3160 Version.Text + "/include/c++/",
3161 TripleStr, Multilib.includeSuffix(), DriverArgs,
3162 CC1Args))
3163 return true;
3164
3165 // Detect Debian g++-multiarch-incdir.diff.
3166 if (addLibStdCXXIncludePaths(LibDir.str() + "/../include/c++/" + Version.Text,
3167 DebianMultiarch, Multilib.includeSuffix(),
3168 DriverArgs, CC1Args, /*Debian=*/true))
3169 return true;
3170
3171 // Try /../include/c++/$version (gcc --print-multiarch is empty).
3172 if (addLibStdCXXIncludePaths(LibDir.str() + "/../include/c++/" + Version.Text,
3173 TripleStr, Multilib.includeSuffix(), DriverArgs,
3174 CC1Args))
3175 return true;
3176
3177 // Otherwise, fall back on a bunch of options which don't use multiarch
3178 // layouts for simplicity.
3179 const std::string LibStdCXXIncludePathCandidates[] = {
3180 // Gentoo is weird and places its headers inside the GCC install,
3181 // so if the first attempt to find the headers fails, try these patterns.
3182 InstallDir.str() + "/include/g++-v" + Version.Text,
3183 InstallDir.str() + "/include/g++-v" + Version.MajorStr + "." +
3184 Version.MinorStr,
3185 InstallDir.str() + "/include/g++-v" + Version.MajorStr,
3186 };
3187
3188 for (const auto &IncludePath : LibStdCXXIncludePathCandidates) {
3189 if (addLibStdCXXIncludePaths(IncludePath, TripleStr,
3190 Multilib.includeSuffix(), DriverArgs, CC1Args))
3191 return true;
3192 }
3193 return false;
3194}
3195
3196void
3197Generic_GCC::addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
3198 llvm::opt::ArgStringList &CC1Args) const {
3199 if (GCCInstallation.isValid()) {
3200 addGCCLibStdCxxIncludePaths(DriverArgs, CC1Args,
3201 GCCInstallation.getTriple().str());
3202 }
3203}
3204
3205llvm::opt::DerivedArgList *
3206Generic_GCC::TranslateArgs(const llvm::opt::DerivedArgList &Args, StringRef,
3207 Action::OffloadKind DeviceOffloadKind) const {
3208
3209 // If this tool chain is used for an OpenMP offloading device we have to make
3210 // sure we always generate a shared library regardless of the commands the
3211 // user passed to the host. This is required because the runtime library
3212 // is required to load the device image dynamically at run time.
3213 if (DeviceOffloadKind == Action::OFK_OpenMP) {
3214 DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs());
3215 const OptTable &Opts = getDriver().getOpts();
3216
3217 // Request the shared library. Given that these options are decided
3218 // implicitly, they do not refer to any base argument.
3219 DAL->AddFlagArg(/*BaseArg=*/nullptr, Opts.getOption(options::OPT_shared));
3220 DAL->AddFlagArg(/*BaseArg=*/nullptr, Opts.getOption(options::OPT_fPIC));
3221
3222 // Filter all the arguments we don't care passing to the offloading
3223 // toolchain as they can mess up with the creation of a shared library.
3224 for (auto *A : Args) {
3225 switch ((options::ID)A->getOption().getID()) {
3226 default:
3227 DAL->append(A);
3228 break;
3229 case options::OPT_shared:
3230 case options::OPT_dynamic:
3231 case options::OPT_static:
3232 case options::OPT_fPIC:
3233 case options::OPT_fno_PIC:
3234 case options::OPT_fpic:
3235 case options::OPT_fno_pic:
3236 case options::OPT_fPIE:
3237 case options::OPT_fno_PIE:
3238 case options::OPT_fpie:
3239 case options::OPT_fno_pie:
3240 break;
3241 }
3242 }
3243 return DAL;
3244 }
3245 return nullptr;
3246}
3247
3248void Generic_ELF::anchor() {}
3249
3250void Generic_ELF::addClangTargetOptions(const ArgList &DriverArgs,
3251 ArgStringList &CC1Args,
3252 Action::OffloadKind) const {
3253 if (!DriverArgs.hasFlag(options::OPT_fuse_init_array,
3254 options::OPT_fno_use_init_array, true))
3255 CC1Args.push_back("-fno-use-init-array");
3256}
P
StringRef P
Definition: ASTMatchersInternal.cpp:564
findRISCVMultilibs
static bool findRISCVMultilibs(const Driver &D, const llvm::Triple &TargetTriple, const ArgList &Args, DetectedMultilibs &Result)
Definition: BareMetal.cpp:32
Suffixes
static constexpr CPUSuffix Suffixes[]
Definition: Hexagon.cpp:231
IsStatic
bool IsStatic
Definition: Format.cpp:2808
findCSKYMultilibs
static void findCSKYMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, DetectedMultilibs &Result)
Definition: Gnu.cpp:1659
findAndroidArmMultilibs
static void findAndroidArmMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, DetectedMultilibs &Result)
Definition: Gnu.cpp:1592
isArmOrThumbArch
static bool isArmOrThumbArch(llvm::Triple::ArchType Arch)
Definition: Gnu.cpp:1038
normalizeCPUNamesForAssembler
static void normalizeCPUNamesForAssembler(const ArgList &Args, ArgStringList &CmdArgs)
Definition: Gnu.cpp:55
findBiarchMultilibs
static bool findBiarchMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, bool NeedsBiarchSuffix, DetectedMultilibs &Result)
Definition: Gnu.cpp:1820
isMips16
static bool isMips16(const ArgList &Args)
Definition: Gnu.cpp:1046
getGCCToolchainDir
static llvm::StringRef getGCCToolchainDir(const ArgList &Args, llvm::StringRef SysRoot)
Definition: Gnu.cpp:2025
findMSP430Multilibs
static bool findMSP430Multilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, DetectedMultilibs &Result)
Definition: Gnu.cpp:1631
getStatic
static bool getStatic(const ArgList &Args)
Definition: Gnu.cpp:344
findMipsCsMultilibs
static bool findMipsCsMultilibs(const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition: Gnu.cpp:1060
isArmBigEndian
static bool isArmBigEndian(const llvm::Triple &Triple, const ArgList &Args)
Definition: Gnu.cpp:227
findMipsMtiMultilibs
static bool findMipsMtiMultilibs(const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition: Gnu.cpp:1237
isMipsEL
static bool isMipsEL(llvm::Triple::ArchType Arch)
Definition: Gnu.cpp:1042
getLDMOption
static const char * getLDMOption(const llvm::Triple &T, const ArgList &Args)
Definition: Gnu.cpp:247
findMipsMuslMultilibs
static bool findMipsMuslMultilibs(const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition: Gnu.cpp:1203
findRISCVBareMetalMultilibs
static void findRISCVBareMetalMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, DetectedMultilibs &Result)
Definition: Gnu.cpp:1723
findMipsAndroidMultilibs
static bool findMipsAndroidMultilibs(llvm::vfs::FileSystem &VFS, StringRef Path, const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition: Gnu.cpp:1157
isMSP430
static bool isMSP430(llvm::Triple::ArchType Arch)
Definition: Gnu.cpp:1056
isSoftFloatABI
static bool isSoftFloatABI(const ArgList &Args)
Definition: Gnu.cpp:1027
findMipsImgMultilibs
static bool findMipsImgMultilibs(const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition: Gnu.cpp:1418
getPIE
static bool getPIE(const ArgList &Args, const ToolChain &TC)
Definition: Gnu.cpp:318
getStaticPIE
static bool getStaticPIE(const ArgList &Args, const ToolChain &TC)
Definition: Gnu.cpp:330
forwardToGCC
static bool forwardToGCC(const Option &O)
Definition: Gnu.cpp:45
isMicroMips
static bool isMicroMips(const ArgList &Args)
Definition: Gnu.cpp:1051
clang::driver::Action::getType
types::ID getType() const
Definition: Action.h:148
clang::driver::Action::isHostOffloading
bool isHostOffloading(unsigned int OKind) const
Check if this action have any offload kinds.
Definition: Action.h:218
clang::driver::Compilation
Compilation - A set of tasks to perform for a single driver invocation.
Definition: Compilation.h:45
clang::driver::Driver
Driver - Encapsulate logic for constructing compilation processes from a set of gcc-driver-like comma...
Definition: Driver.h:77
clang::driver::Driver::SysRoot
std::string SysRoot
sysroot, if present
Definition: Driver.h:183
clang::driver::Driver::DyldPrefix
std::string DyldPrefix
Dynamic loader prefix, if present.
Definition: Driver.h:186
clang::driver::Driver::Diag
DiagnosticBuilder Diag(unsigned DiagID) const
Definition: Driver.h:144
clang::driver::Driver::getOpts
const llvm::opt::OptTable & getOpts() const
Definition: Driver.h:388
clang::driver::Driver::getLTOMode
LTOKind getLTOMode(bool IsOffload=false) const
Get the specific kind of LTO being performed.
Definition: Driver.h:704
clang::driver::Driver::InstalledDir
std::string InstalledDir
The path to the installed clang directory, if any.
Definition: Driver.h:164
clang::driver::Driver::getVFS
llvm::vfs::FileSystem & getVFS() const
Definition: Driver.h:392
clang::driver::Driver::isUsingLTO
bool isUsingLTO(bool IsOffload=false) const
Returns true if we are performing any kind of LTO.
Definition: Driver.h:699
clang::driver::Driver::IsFlangMode
bool IsFlangMode() const
Whether the driver should invoke flang for fortran inputs.
Definition: Driver.h:229
clang::driver::Driver::getCCCGenericGCCName
const std::string & getCCCGenericGCCName() const
Name to use when invoking gcc/g++.
Definition: Driver.h:382
clang::driver::Driver::CCCIsCXX
bool CCCIsCXX() const
Whether the driver should follow g++ like behavior.
Definition: Driver.h:216
clang::driver::InputInfo
InputInfo - Wrapper for information about an input source.
Definition: InputInfo.h:22
clang::driver::InputInfo::getFilename
const char * getFilename() const
Definition: InputInfo.h:83
clang::driver::InputInfo::isNothing
bool isNothing() const
Definition: InputInfo.h:74
clang::driver::InputInfo::isFilename
bool isFilename() const
Definition: InputInfo.h:75
clang::driver::MultilibBuilder
This corresponds to a single GCC multilib, or a segment of one controlled by a command line flag.
Definition: MultilibBuilder.h:22
clang::driver::MultilibBuilder::gccSuffix
const std::string & gccSuffix() const
Get the detected GCC installation path suffix for the multi-arch target variant.
Definition: MultilibBuilder.h:41
clang::driver::MultilibBuilder::osSuffix
const std::string & osSuffix() const
Get the detected os path suffix for the multi-arch target variant.
Definition: MultilibBuilder.h:52
clang::driver::MultilibBuilder::flag
MultilibBuilder & flag(StringRef F)
Add a flag to the flags list Flag must be a flag accepted by the driver with its leading '-' removed,...
Definition: MultilibBuilder.h:85
clang::driver::MultilibSetBuilder
This class can be used to create a MultilibSet, and contains helper functions to add combinations of ...
Definition: MultilibBuilder.h:105
clang::driver::MultilibSetBuilder::Maybe
MultilibSetBuilder & Maybe(const MultilibBuilder &M)
Add an optional Multilib segment.
Definition: MultilibBuilder.cpp:92
clang::driver::MultilibSetBuilder::FilterOut
MultilibSetBuilder & FilterOut(const char *Regex)
Filter out those Multilibs whose gccSuffix matches the given expression.
Definition: MultilibBuilder.cpp:170
clang::driver::MultilibSetBuilder::Either
MultilibSetBuilder & Either(const MultilibBuilder &M1, const MultilibBuilder &M2)
Add a set of mutually incompatible Multilib segments.
Definition: MultilibBuilder.cpp:102
clang::driver::MultilibSet
See also MultilibSetBuilder for combining multilibs into a set.
Definition: Multilib.h:78
clang::driver::MultilibSet::setFilePathsCallback
MultilibSet & setFilePathsCallback(IncludeDirsFunc F)
Definition: Multilib.h:124
clang::driver::MultilibSet::size
unsigned size() const
Definition: Multilib.h:112
clang::driver::MultilibSet::FilterOut
MultilibSet & FilterOut(FilterCallback F)
Filter out some subset of the Multilibs using a user defined callback.
Definition: Multilib.cpp:85
clang::driver::MultilibSet::select
multilib_list select(const Multilib::flags_list &Flags) const
Select compatible variants.
Definition: Multilib.cpp:93
clang::driver::MultilibSet::filePathsCallback
const IncludeDirsFunc & filePathsCallback() const
Definition: Multilib.h:129
clang::driver::MultilibSet::includeDirsCallback
const IncludeDirsFunc & includeDirsCallback() const
Definition: Multilib.h:122
clang::driver::MultilibSet::setIncludeDirsCallback
MultilibSet & setIncludeDirsCallback(IncludeDirsFunc F)
Definition: Multilib.h:117
clang::driver::Multilib
This corresponds to a single GCC Multilib, or a segment of one controlled by a command line flag.
Definition: Multilib.h:30
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:50
clang::driver::Multilib::osSuffix
const std::string & osSuffix() const
Get the detected os path suffix for the multi-arch target variant.
Definition: Multilib.h:54
clang::driver::Multilib::flags_list
std::vector< std::string > flags_list
Definition: Multilib.h:32
clang::driver::Multilib::includeSuffix
const std::string & includeSuffix() const
Get the include directory suffix.
Definition: Multilib.h:58
clang::driver::Multilib::isDefault
bool isDefault() const
Check whether the default is selected.
Definition: Multilib.h:69
clang::driver::ToolChain
ToolChain - Access to tools for a single platform.
Definition: ToolChain.h:91
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:980
clang::driver::ToolChain::computeSysRoot
virtual std::string computeSysRoot() const
Return the sysroot, possibly searching for a default sysroot using target-specific logic.
Definition: ToolChain.cpp:866
clang::driver::ToolChain::GetRuntimeLibType
virtual RuntimeLibType GetRuntimeLibType(const llvm::opt::ArgList &Args) const
Definition: ToolChain.cpp:892
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:1082
clang::driver::ToolChain::GetFilePath
std::string GetFilePath(const char *Name) const
Definition: ToolChain.cpp:671
clang::driver::ToolChain::getArch
llvm::Triple::ArchType getArch() const
Definition: ToolChain.h:252
clang::driver::ToolChain::getDriver
const Driver & getDriver() const
Definition: ToolChain.h:236
clang::driver::ToolChain::detectLibcxxVersion
virtual std::string detectLibcxxVersion(StringRef IncludePath) const
Definition: ToolChain.cpp:1027
clang::driver::ToolChain::concat
static std::string concat(StringRef Path, const Twine &A, const Twine &B="", const Twine &C="", const Twine &D="")
Definition: ToolChain.cpp:1019
clang::driver::ToolChain::getVFS
llvm::vfs::FileSystem & getVFS() const
Definition: ToolChain.cpp:128
clang::driver::ToolChain::isPIEDefault
virtual bool isPIEDefault(const llvm::opt::ArgList &Args) const =0
Test whether this toolchain defaults to PIE.
clang::driver::ToolChain::addFastMathRuntimeIfAvailable
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:1139
clang::driver::ToolChain::getProgramPaths
path_list & getProgramPaths()
Definition: ToolChain.h:281
clang::driver::ToolChain::addExternCSystemIncludeIfExists
static void addExternCSystemIncludeIfExists(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, const Twine &Path)
Definition: ToolChain.cpp:1002
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:1088
clang::driver::ToolChain::getTriple
const llvm::Triple & getTriple() const
Definition: ToolChain.h:238
clang::driver::ToolChain::GetLinkerPath
std::string GetLinkerPath(bool *LinkerIsLLD=nullptr) const
Returns the linker path, respecting the -fuse-ld= argument to determine the linker suffix or name.
Definition: ToolChain.cpp:679
clang::driver::ToolChain::getCompilerRT
virtual std::string getCompilerRT(const llvm::opt::ArgList &Args, StringRef Component, FileType Type=ToolChain::FT_Static) const
Definition: ToolChain.cpp:546
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:1107
clang::driver::ToolChain::getTripleString
std::string getTripleString() const
Definition: ToolChain.h:261
clang::driver::ToolChain::GetCXXStdlibType
virtual CXXStdlibType GetCXXStdlibType(const llvm::opt::ArgList &Args) const
Definition: ToolChain.cpp:954
clang::driver::ToolChain::getTool
virtual Tool * getTool(Action::ActionClass AC) const
Definition: ToolChain.cpp:403
clang::driver::Tool
Tool - Information on a specific compilation tool.
Definition: Tool.h:32
clang::driver::Tool::getToolChain
const ToolChain & getToolChain() const
Definition: Tool.h:52
clang::driver::toolchains::Generic_ELF
Definition: Gnu.h:364
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:3250
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::print
void print(raw_ostream &OS) const
Print information about the detected GCC installation.
Definition: Gnu.cpp:2174
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getMultilib
const Multilib & getMultilib() const
Get the detected Multilib.
Definition: Gnu.h:237
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getTriple
const llvm::Triple & getTriple() const
Get the GCC triple for the detected install.
Definition: Gnu.h:228
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::isValid
bool isValid() const
Check whether we detected a valid GCC install.
Definition: Gnu.h:225
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getBiarchSibling
bool getBiarchSibling(Multilib &M) const
Get the biarch sibling multilib (if it exists).
Definition: Gnu.cpp:2188
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getParentLibPath
StringRef getParentLibPath() const
Get the detected GCC parent lib path.
Definition: Gnu.h:234
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getInstallPath
StringRef getInstallPath() const
Get the detected GCC installation path.
Definition: Gnu.h:231
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::init
void init(const llvm::Triple &TargetTriple, const llvm::opt::ArgList &Args, ArrayRef< std::string > ExtraTripleAliases=std::nullopt)
Initialize a GCCInstallationDetector from the driver.
Definition: Gnu.cpp:2049
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getVersion
const GCCVersion & getVersion() const
Get the detected GCC version string.
Definition: Gnu.h:247
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:3206
clang::driver::toolchains::Generic_GCC::AddMultilibPaths
void AddMultilibPaths(const Driver &D, const std::string &SysRoot, const std::string &OSLibDir, const std::string &MultiarchTriple, path_list &Paths)
Definition: Gnu.cpp:2951
clang::driver::toolchains::Generic_GCC::addGCCLibStdCxxIncludePaths
bool addGCCLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, StringRef DebianMultiarch) const
Definition: Gnu.cpp:3136
clang::driver::toolchains::Generic_GCC::CudaInstallation
LazyDetector< CudaInstallationDetector > CudaInstallation
Definition: Gnu.h:290
clang::driver::toolchains::Generic_GCC::PushPPaths
void PushPPaths(ToolChain::path_list &PPaths)
Definition: Gnu.cpp:2936
clang::driver::toolchains::Generic_GCC::getTool
Tool * getTool(Action::ActionClass AC) const override
Definition: Gnu.cpp:2859
clang::driver::toolchains::Generic_GCC::Generic_GCC
Generic_GCC(const Driver &D, const llvm::Triple &Triple, const llvm::opt::ArgList &Args)
Definition: Gnu.cpp:2848
clang::driver::toolchains::Generic_GCC::GCCInstallation
GCCInstallationDetector GCCInstallation
Definition: Gnu.h:289
clang::driver::toolchains::Generic_GCC::AddMultilibIncludeArgs
void AddMultilibIncludeArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Definition: Gnu.cpp:3030
clang::driver::toolchains::Generic_GCC::IsIntegratedAssemblerDefault
bool IsIntegratedAssemblerDefault() const override
IsIntegratedAssemblerDefault - Does this tool chain enable -integrated-as by default.
Definition: Gnu.cpp:2925
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:3049
clang::driver::toolchains::Generic_GCC::buildLinker
Tool * buildLinker() const override
Definition: Gnu.cpp:2878
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:2921
clang::driver::toolchains::Generic_GCC::isPIEDefault
bool isPIEDefault(const llvm::opt::ArgList &Args) const override
Test whether this toolchain defaults to PIE.
Definition: Gnu.cpp:2917
clang::driver::toolchains::Generic_GCC::printVerboseInfo
void printVerboseInfo(raw_ostream &OS) const override
Dispatch to the specific toolchain for verbose printing.
Definition: Gnu.cpp:2880
clang::driver::toolchains::Generic_GCC::~Generic_GCC
~Generic_GCC() override
Definition: Gnu.cpp:2857
clang::driver::toolchains::Generic_GCC::AddMultiarchPaths
void AddMultiarchPaths(const Driver &D, const std::string &SysRoot, const std::string &OSLibDir, path_list &Paths)
Definition: Gnu.cpp:3015
clang::driver::toolchains::Generic_GCC::buildAssembler
Tool * buildAssembler() const override
Definition: Gnu.cpp:2874
clang::driver::toolchains::Generic_GCC::getDefaultUnwindTableLevel
UnwindTableLevel getDefaultUnwindTableLevel(const llvm::opt::ArgList &Args) const override
How detailed should the unwind tables be by default.
Definition: Gnu.cpp:2888
clang::driver::toolchains::Generic_GCC::addLibStdCXXIncludePaths
bool addLibStdCXXIncludePaths(Twine IncludeDir, StringRef Triple, Twine IncludeSuffix, const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, bool DetectDebian=false) const
Definition: Gnu.cpp:3102
clang::driver::toolchains::Generic_GCC::isPICDefault
bool isPICDefault() const override
Test whether this toolchain defaults to PIC.
Definition: Gnu.cpp:2905
clang::driver::toolchains::Generic_GCC::addLibCxxIncludePaths
virtual void addLibCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Definition: Gnu.cpp:3067
clang::driver::toolchains::Generic_GCC::RocmInstallation
LazyDetector< RocmInstallationDetector > RocmInstallation
Definition: Gnu.h:291
clang::driver::toolchains::Generic_GCC::addLibStdCxxIncludePaths
virtual void addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Definition: Gnu.cpp:3197
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:68
clang::driver::tools::gcc::Common::RenderExtraToolArgs
virtual void RenderExtraToolArgs(const JobAction &JA, llvm::opt::ArgStringList &CmdArgs) const =0
RenderExtraToolArgs - Render any arguments necessary to force the particular tool mode.
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:190
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:218
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:185
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:709
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:393
clang::driver::tools::gnutools::StaticLibTool::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:349
clang::driver::tools::arm::appendBE8LinkFlag
void appendBE8LinkFlag(const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs, const llvm::Triple &Triple)
clang::driver::tools::arm::getARMFloatABI
FloatABI getARMFloatABI(const ToolChain &TC, const llvm::opt::ArgList &Args)
clang::driver::tools::csky::getCSKYFloatABI
FloatABI getCSKYFloatABI(const Driver &D, const llvm::opt::ArgList &Args)
clang::driver::tools::csky::getCSKYArchName
std::optional< llvm::StringRef > getCSKYArchName(const Driver &D, const llvm::opt::ArgList &Args, const llvm::Triple &Triple)
clang::driver::tools::loongarch::getLoongArchABI
StringRef getLoongArchABI(const Driver &D, const llvm::opt::ArgList &Args, const llvm::Triple &Triple)
clang::driver::tools::mips::getGnuCompatibleMipsABIName
StringRef getGnuCompatibleMipsABIName(StringRef ABI)
Definition: Mips.cpp:137
clang::driver::tools::mips::isNaN2008
bool isNaN2008(const Driver &D, const llvm::opt::ArgList &Args, const llvm::Triple &Triple)
clang::driver::tools::mips::hasMipsAbiArg
bool hasMipsAbiArg(const llvm::opt::ArgList &Args, const char *Value)
clang::driver::tools::mips::getMipsFloatABI
mips::FloatABI getMipsFloatABI(const Driver &D, const llvm::opt::ArgList &Args, const llvm::Triple &Triple)
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::tools::mips::isUCLibc
bool isUCLibc(const llvm::opt::ArgList &Args)
clang::driver::tools::mips::getMipsCPUAndABI
void getMipsCPUAndABI(const llvm::opt::ArgList &Args, const llvm::Triple &Triple, StringRef &CPUName, StringRef &ABIName)
clang::driver::tools::ppc::getPPCAsmModeForCPU
const char * getPPCAsmModeForCPU(StringRef Name)
Definition: PPC.cpp:95
clang::driver::tools::riscv::getRISCVABI
StringRef getRISCVABI(const llvm::opt::ArgList &Args, const llvm::Triple &Triple)
clang::driver::tools::riscv::getRISCVArch
StringRef getRISCVArch(const llvm::opt::ArgList &Args, const llvm::Triple &Triple)
Definition: RISCV.cpp:238
clang::driver::tools::sparc::getSparcAsmModeForCPU
const char * getSparcAsmModeForCPU(llvm::StringRef Name, const llvm::Triple &Triple)
clang::driver::tools::systemz::getSystemZTargetCPU
std::string getSystemZTargetCPU(const llvm::opt::ArgList &Args)
clang::driver::tools::SplitDebugName
const char * SplitDebugName(const JobAction &JA, const llvm::opt::ArgList &Args, const InputInfo &Input, const InputInfo &Output)
clang::driver::tools::getCPUName
std::string getCPUName(const Driver &D, const llvm::opt::ArgList &Args, const llvm::Triple &T, bool FromAs=false)
clang::driver::tools::linkXRayRuntimeDeps
void linkXRayRuntimeDeps(const ToolChain &TC, llvm::opt::ArgStringList &CmdArgs)
clang::driver::tools::AddRunTimeLibs
void AddRunTimeLibs(const ToolChain &TC, const Driver &D, llvm::opt::ArgStringList &CmdArgs, const llvm::opt::ArgList &Args)
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)
clang::driver::tools::addHIPRuntimeLibArgs
void addHIPRuntimeLibArgs(const ToolChain &TC, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs)
Definition: CommonArgs.cpp:2417
clang::driver::tools::addSanitizerRuntimes
bool addSanitizerRuntimes(const ToolChain &TC, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs)
clang::driver::tools::addXRayRuntime
bool addXRayRuntime(const ToolChain &TC, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs)
clang::driver::tools::AddAssemblerKPIC
void AddAssemblerKPIC(const ToolChain &ToolChain, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs)
clang::driver::tools::addFortranRuntimeLibs
void addFortranRuntimeLibs(const ToolChain &TC, llvm::opt::ArgStringList &CmdArgs)
Adds Fortran runtime libraries to CmdArgs.
Definition: CommonArgs.cpp:922
clang::driver::tools::addPathIfExists
void addPathIfExists(const Driver &D, const Twine &Path, ToolChain::path_list &Paths)
Definition: CommonArgs.cpp:149
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 '-' removed,
Definition: CommonArgs.cpp:1908
clang::driver::tools::addFortranRuntimeLibraryPath
void addFortranRuntimeLibraryPath(const ToolChain &TC, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs)
Adds the path for the Fortran runtime libraries to CmdArgs.
clang::driver::tools::addLinkerCompressDebugSectionsOption
void addLinkerCompressDebugSectionsOption(const ToolChain &TC, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs)
Definition: CommonArgs.cpp:307
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::tools::addLTOOptions
void addLTOOptions(const ToolChain &ToolChain, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs, const InputInfo &Output, const InputInfo &Input, bool IsThinLTO)
clang::driver::tools::ParsePICArgs
std::tuple< llvm::Reloc::Model, unsigned, bool > ParsePICArgs(const ToolChain &ToolChain, const llvm::opt::ArgList &Args)
clang::driver::tools::claimNoWarnArgs
void claimNoWarnArgs(const llvm::opt::ArgList &Args)
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::tools::getDwarfVersion
unsigned getDwarfVersion(const ToolChain &TC, const llvm::opt::ArgList &Args)
Definition: CommonArgs.cpp:1717
clang::driver::tools::linkSanitizerRuntimeDeps
void linkSanitizerRuntimeDeps(const ToolChain &TC, llvm::opt::ArgStringList &CmdArgs)
clang::driver::types::isLLVMIR
bool isLLVMIR(ID Id)
Is this LLVM IR.
Definition: Types.cpp:252
clang::driver::types::getTypeName
const char * getTypeName(ID Id)
getTypeName - Return the name of the type for Id.
Definition: Types.cpp:52
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:105
clang::driver::findMIPSMultilibs
bool findMIPSMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const llvm::opt::ArgList &Args, DetectedMultilibs &Result)
clang::Language::C
@ C
Languages that the frontend can parse and compile.
clang::ObjCSubstitutionContext::Result
@ Result
The result type of a method or function.
clang::driver::DetectedMultilibs::SelectedMultilib
Multilib SelectedMultilib
The primary multilib appropriate for the given flags.
Definition: Gnu.h:27
clang::driver::DetectedMultilibs::Multilibs
MultilibSet Multilibs
The set of multilibs that the detected installation supports.
Definition: Gnu.h:24
clang::driver::DetectedMultilibs::BiarchSibling
std::optional< Multilib > BiarchSibling
On Biarch systems, this corresponds to the default multilib when targeting the non-default multilib.
Definition: Gnu.h:31
clang::driver::ResponseFileSupport::AtFileCurCP
static constexpr ResponseFileSupport AtFileCurCP()
Definition: Job.h:92
clang::driver::toolchains::Generic_GCC::GCCVersion
Struct to store and manipulate GCC versions.
Definition: Gnu.h:162
clang::driver::toolchains::Generic_GCC::GCCVersion::MajorStr
std::string MajorStr
The text of the parsed major, and major+minor versions.
Definition: Gnu.h:170
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 'gcc' command to perform all subcommands; this relies on gcc tra...
Definition: Gnu.cpp:1934
clang::driver::toolchains::Generic_GCC::GCCVersion::MinorStr
std::string MinorStr
Definition: Gnu.h:170
clang::driver::toolchains::Generic_GCC::GCCVersion::Minor
int Minor
Definition: Gnu.h:167
clang::driver::toolchains::Generic_GCC::GCCVersion::Patch
int Patch
Definition: Gnu.h:167
clang::driver::toolchains::Generic_GCC::GCCVersion::PatchSuffix
std::string PatchSuffix
Any textual suffix on the patch number.
Definition: Gnu.h:173
clang::driver::toolchains::Generic_GCC::GCCVersion::Major
int Major
The parsed major, minor, and patch numbers.
Definition: Gnu.h:167
clang::driver::toolchains::Generic_GCC::GCCVersion::Text
std::string Text
The unparsed text of the version.
Definition: Gnu.h:164
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:1978
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