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clang 20.0.0git
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/RISCVISAInfo.h"
35#include "llvm/TargetParser/TargetParser.h"
36#include <system_error>
37
38using namespace clang::driver;
39using namespace clang::driver::toolchains;
40using namespace clang;
41using namespace llvm::opt;
42
43using tools::addMultilibFlag;
44using tools::addPathIfExists;
45
46static bool forwardToGCC(const Option &O) {
47 // LinkerInput options have been forwarded. Don't duplicate.
48 if (O.hasFlag(options::LinkerInput))
49 return false;
50 return O.matches(options::OPT_Link_Group) || O.hasFlag(options::LinkOption);
51}
52
53// Switch CPU names not recognized by GNU assembler to a close CPU that it does
54// recognize, instead of a lower march from being picked in the absence of a cpu
55// flag.
56static void normalizeCPUNamesForAssembler(const ArgList &Args,
57 ArgStringList &CmdArgs) {
58 if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) {
59 StringRef CPUArg(A->getValue());
60 if (CPUArg.equals_insensitive("krait"))
61 CmdArgs.push_back("-mcpu=cortex-a15");
62 else if (CPUArg.equals_insensitive("kryo"))
63 CmdArgs.push_back("-mcpu=cortex-a57");
64 else
65 Args.AddLastArg(CmdArgs, options::OPT_mcpu_EQ);
66 }
67}
68
69void tools::gcc::Common::ConstructJob(Compilation &C, const JobAction &JA,
70 const InputInfo &Output,
71 const InputInfoList &Inputs,
72 const ArgList &Args,
73 const char *LinkingOutput) const {
74 const Driver &D = getToolChain().getDriver();
75 ArgStringList CmdArgs;
76
77 for (const auto &A : Args) {
78 if (forwardToGCC(A->getOption())) {
79 // It is unfortunate that we have to claim here, as this means
80 // we will basically never report anything interesting for
81 // platforms using a generic gcc, even if we are just using gcc
82 // to get to the assembler.
83 A->claim();
84
85 A->render(Args, CmdArgs);
86 }
87 }
88
89 RenderExtraToolArgs(JA, CmdArgs);
90
91 // If using a driver, force the arch.
92 if (getToolChain().getTriple().isOSDarwin()) {
93 CmdArgs.push_back("-arch");
94 CmdArgs.push_back(
95 Args.MakeArgString(getToolChain().getDefaultUniversalArchName()));
96 }
97
98 // Try to force gcc to match the tool chain we want, if we recognize
99 // the arch.
100 //
101 // FIXME: The triple class should directly provide the information we want
102 // here.
103 switch (getToolChain().getArch()) {
104 default:
105 break;
106 case llvm::Triple::x86:
107 case llvm::Triple::ppc:
108 case llvm::Triple::ppcle:
109 CmdArgs.push_back("-m32");
110 break;
111 case llvm::Triple::x86_64:
112 case llvm::Triple::ppc64:
113 case llvm::Triple::ppc64le:
114 CmdArgs.push_back("-m64");
115 break;
116 case llvm::Triple::sparcel:
117 CmdArgs.push_back("-EL");
118 break;
119 }
120
121 assert((Output.isFilename() || Output.isNothing()) && "Invalid output.");
122 if (Output.isFilename()) {
123 CmdArgs.push_back("-o");
124 CmdArgs.push_back(Output.getFilename());
125 } else {
126 CmdArgs.push_back("-fsyntax-only");
127 }
128
129 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
130
131 // Only pass -x if gcc will understand it; otherwise hope gcc
132 // understands the suffix correctly. The main use case this would go
133 // wrong in is for linker inputs if they happened to have an odd
134 // suffix; really the only way to get this to happen is a command
135 // like '-x foobar a.c' which will treat a.c like a linker input.
136 //
137 // FIXME: For the linker case specifically, can we safely convert
138 // inputs into '-Wl,' options?
139 for (const auto &II : Inputs) {
140 // Don't try to pass LLVM or AST inputs to a generic gcc.
141 if (types::isLLVMIR(II.getType()))
142 D.Diag(clang::diag::err_drv_no_linker_llvm_support)
143 << getToolChain().getTripleString();
144 else if (II.getType() == types::TY_AST)
145 D.Diag(diag::err_drv_no_ast_support) << getToolChain().getTripleString();
146 else if (II.getType() == types::TY_ModuleFile)
147 D.Diag(diag::err_drv_no_module_support)
148 << getToolChain().getTripleString();
149
150 if (types::canTypeBeUserSpecified(II.getType())) {
151 CmdArgs.push_back("-x");
152 CmdArgs.push_back(types::getTypeName(II.getType()));
153 }
154
155 if (II.isFilename())
156 CmdArgs.push_back(II.getFilename());
157 else {
158 const Arg &A = II.getInputArg();
159
160 // Reverse translate some rewritten options.
161 if (A.getOption().matches(options::OPT_Z_reserved_lib_stdcxx)) {
162 CmdArgs.push_back("-lstdc++");
163 continue;
164 }
165
166 // Don't render as input, we need gcc to do the translations.
167 A.render(Args, CmdArgs);
168 }
169 }
170
171 const std::string &customGCCName = D.getCCCGenericGCCName();
172 const char *GCCName;
173 if (!customGCCName.empty())
174 GCCName = customGCCName.c_str();
175 else if (D.CCCIsCXX()) {
176 GCCName = "g++";
177 } else
178 GCCName = "gcc";
179
180 const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath(GCCName));
181 C.addCommand(std::make_unique<Command>(JA, *this,
182 ResponseFileSupport::AtFileCurCP(),
183 Exec, CmdArgs, Inputs, Output));
184}
185
186void tools::gcc::Preprocessor::RenderExtraToolArgs(
187 const JobAction &JA, ArgStringList &CmdArgs) const {
188 CmdArgs.push_back("-E");
189}
190
191void tools::gcc::Compiler::RenderExtraToolArgs(const JobAction &JA,
192 ArgStringList &CmdArgs) const {
193 const Driver &D = getToolChain().getDriver();
194
195 switch (JA.getType()) {
196 // If -flto, etc. are present then make sure not to force assembly output.
197 case types::TY_LLVM_IR:
198 case types::TY_LTO_IR:
199 case types::TY_LLVM_BC:
200 case types::TY_LTO_BC:
201 CmdArgs.push_back("-c");
202 break;
203 // We assume we've got an "integrated" assembler in that gcc will produce an
204 // object file itself.
205 case types::TY_Object:
206 CmdArgs.push_back("-c");
207 break;
208 case types::TY_PP_Asm:
209 CmdArgs.push_back("-S");
210 break;
211 case types::TY_Nothing:
212 CmdArgs.push_back("-fsyntax-only");
213 break;
214 default:
215 D.Diag(diag::err_drv_invalid_gcc_output_type) << getTypeName(JA.getType());
216 }
217}
218
219void tools::gcc::Linker::RenderExtraToolArgs(const JobAction &JA,
220 ArgStringList &CmdArgs) const {
221 // The types are (hopefully) good enough.
222}
223
224static const char *getLDMOption(const llvm::Triple &T, const ArgList &Args) {
225 switch (T.getArch()) {
226 case llvm::Triple::x86:
227 if (T.isOSIAMCU())
228 return "elf_iamcu";
229 return "elf_i386";
230 case llvm::Triple::aarch64:
231 return "aarch64linux";
232 case llvm::Triple::aarch64_be:
233 return "aarch64linuxb";
234 case llvm::Triple::arm:
235 case llvm::Triple::thumb:
236 case llvm::Triple::armeb:
237 case llvm::Triple::thumbeb:
238 return tools::arm::isARMBigEndian(T, Args) ? "armelfb_linux_eabi"
239 : "armelf_linux_eabi";
240 case llvm::Triple::m68k:
241 return "m68kelf";
242 case llvm::Triple::ppc:
243 if (T.isOSLinux())
244 return "elf32ppclinux";
245 return "elf32ppc";
246 case llvm::Triple::ppcle:
247 if (T.isOSLinux())
248 return "elf32lppclinux";
249 return "elf32lppc";
250 case llvm::Triple::ppc64:
251 return "elf64ppc";
252 case llvm::Triple::ppc64le:
253 return "elf64lppc";
254 case llvm::Triple::riscv32:
255 return "elf32lriscv";
256 case llvm::Triple::riscv64:
257 return "elf64lriscv";
258 case llvm::Triple::sparc:
259 case llvm::Triple::sparcel:
260 return "elf32_sparc";
261 case llvm::Triple::sparcv9:
262 return "elf64_sparc";
263 case llvm::Triple::loongarch32:
264 return "elf32loongarch";
265 case llvm::Triple::loongarch64:
266 return "elf64loongarch";
267 case llvm::Triple::mips:
268 return "elf32btsmip";
269 case llvm::Triple::mipsel:
270 return "elf32ltsmip";
271 case llvm::Triple::mips64:
272 if (tools::mips::hasMipsAbiArg(Args, "n32") || T.isABIN32())
273 return "elf32btsmipn32";
274 return "elf64btsmip";
275 case llvm::Triple::mips64el:
276 if (tools::mips::hasMipsAbiArg(Args, "n32") || T.isABIN32())
277 return "elf32ltsmipn32";
278 return "elf64ltsmip";
279 case llvm::Triple::systemz:
280 return "elf64_s390";
281 case llvm::Triple::x86_64:
282 if (T.isX32())
283 return "elf32_x86_64";
284 return "elf_x86_64";
285 case llvm::Triple::ve:
286 return "elf64ve";
287 case llvm::Triple::csky:
288 return "cskyelf_linux";
289 default:
290 return nullptr;
291 }
292}
293
294static bool getStaticPIE(const ArgList &Args, const ToolChain &TC) {
295 bool HasStaticPIE = Args.hasArg(options::OPT_static_pie);
296 if (HasStaticPIE && Args.hasArg(options::OPT_no_pie)) {
297 const Driver &D = TC.getDriver();
298 const llvm::opt::OptTable &Opts = D.getOpts();
299 StringRef StaticPIEName = Opts.getOptionName(options::OPT_static_pie);
300 StringRef NoPIEName = Opts.getOptionName(options::OPT_nopie);
301 D.Diag(diag::err_drv_cannot_mix_options) << StaticPIEName << NoPIEName;
302 }
303 return HasStaticPIE;
304}
305
306static bool getStatic(const ArgList &Args) {
307 return Args.hasArg(options::OPT_static) &&
308 !Args.hasArg(options::OPT_static_pie);
309}
310
311void tools::gnutools::StaticLibTool::ConstructJob(
312 Compilation &C, const JobAction &JA, const InputInfo &Output,
313 const InputInfoList &Inputs, const ArgList &Args,
314 const char *LinkingOutput) const {
315 const Driver &D = getToolChain().getDriver();
316
317 // Silence warning for "clang -g foo.o -o foo"
318 Args.ClaimAllArgs(options::OPT_g_Group);
319 // and "clang -emit-llvm foo.o -o foo"
320 Args.ClaimAllArgs(options::OPT_emit_llvm);
321 // and for "clang -w foo.o -o foo". Other warning options are already
322 // handled somewhere else.
323 Args.ClaimAllArgs(options::OPT_w);
324 // Silence warnings when linking C code with a C++ '-stdlib' argument.
325 Args.ClaimAllArgs(options::OPT_stdlib_EQ);
326
327 // ar tool command "llvm-ar <options> <output_file> <input_files>".
328 ArgStringList CmdArgs;
329 // Create and insert file members with a deterministic index.
330 CmdArgs.push_back("rcsD");
331 CmdArgs.push_back(Output.getFilename());
332
333 for (const auto &II : Inputs) {
334 if (II.isFilename()) {
335 CmdArgs.push_back(II.getFilename());
336 }
337 }
338
339 // Delete old output archive file if it already exists before generating a new
340 // archive file.
341 auto OutputFileName = Output.getFilename();
342 if (Output.isFilename() && llvm::sys::fs::exists(OutputFileName)) {
343 if (std::error_code EC = llvm::sys::fs::remove(OutputFileName)) {
344 D.Diag(diag::err_drv_unable_to_remove_file) << EC.message();
345 return;
346 }
347 }
348
349 const char *Exec = Args.MakeArgString(getToolChain().GetStaticLibToolPath());
350 C.addCommand(std::make_unique<Command>(JA, *this,
351 ResponseFileSupport::AtFileCurCP(),
352 Exec, CmdArgs, Inputs, Output));
353}
354
355void tools::gnutools::Linker::ConstructJob(Compilation &C, const JobAction &JA,
356 const InputInfo &Output,
357 const InputInfoList &Inputs,
358 const ArgList &Args,
359 const char *LinkingOutput) const {
360 // FIXME: The Linker class constructor takes a ToolChain and not a
361 // Generic_ELF, so the static_cast might return a reference to a invalid
362 // instance (see PR45061). Ideally, the Linker constructor needs to take a
363 // Generic_ELF instead.
364 const auto &ToolChain = static_cast<const Generic_ELF &>(getToolChain());
365 const Driver &D = ToolChain.getDriver();
366
367 const llvm::Triple &Triple = getToolChain().getEffectiveTriple();
368
369 const llvm::Triple::ArchType Arch = ToolChain.getArch();
370 const bool isOHOSFamily = ToolChain.getTriple().isOHOSFamily();
371 const bool isAndroid = ToolChain.getTriple().isAndroid();
372 const bool IsIAMCU = ToolChain.getTriple().isOSIAMCU();
373 const bool IsVE = ToolChain.getTriple().isVE();
374 const bool IsStaticPIE = getStaticPIE(Args, ToolChain);
375 const bool IsStatic = getStatic(Args);
376 const bool HasCRTBeginEndFiles =
377 ToolChain.getTriple().hasEnvironment() ||
378 (ToolChain.getTriple().getVendor() != llvm::Triple::MipsTechnologies);
379
380 ArgStringList CmdArgs;
381
382 // Silence warning for "clang -g foo.o -o foo"
383 Args.ClaimAllArgs(options::OPT_g_Group);
384 // and "clang -emit-llvm foo.o -o foo"
385 Args.ClaimAllArgs(options::OPT_emit_llvm);
386 // and for "clang -w foo.o -o foo". Other warning options are already
387 // handled somewhere else.
388 Args.ClaimAllArgs(options::OPT_w);
389
390 if (!D.SysRoot.empty())
391 CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot));
392
393 if (Args.hasArg(options::OPT_s))
394 CmdArgs.push_back("-s");
395
396 if (Triple.isARM() || Triple.isThumb()) {
397 bool IsBigEndian = arm::isARMBigEndian(Triple, Args);
398 if (IsBigEndian)
399 arm::appendBE8LinkFlag(Args, CmdArgs, Triple);
400 CmdArgs.push_back(IsBigEndian ? "-EB" : "-EL");
401 } else if (Triple.isAArch64()) {
402 CmdArgs.push_back(Arch == llvm::Triple::aarch64_be ? "-EB" : "-EL");
403 }
404
405 // Most Android ARM64 targets should enable the linker fix for erratum
406 // 843419. Only non-Cortex-A53 devices are allowed to skip this flag.
407 if (Arch == llvm::Triple::aarch64 && (isAndroid || isOHOSFamily)) {
408 std::string CPU = getCPUName(D, Args, Triple);
409 if (CPU.empty() || CPU == "generic" || CPU == "cortex-a53")
410 CmdArgs.push_back("--fix-cortex-a53-843419");
411 }
412
413 ToolChain.addExtraOpts(CmdArgs);
414
415 CmdArgs.push_back("--eh-frame-hdr");
416
417 if (const char *LDMOption = getLDMOption(ToolChain.getTriple(), Args)) {
418 CmdArgs.push_back("-m");
419 CmdArgs.push_back(LDMOption);
420 } else {
421 D.Diag(diag::err_target_unknown_triple) << Triple.str();
422 return;
423 }
424
425 if (Triple.isLoongArch() || Triple.isRISCV()) {
426 CmdArgs.push_back("-X");
427 if (Args.hasArg(options::OPT_mno_relax))
428 CmdArgs.push_back("--no-relax");
429 }
430
431 const bool IsShared = Args.hasArg(options::OPT_shared);
432 if (IsShared)
433 CmdArgs.push_back("-shared");
434 bool IsPIE = false;
435 if (IsStaticPIE) {
436 CmdArgs.push_back("-static");
437 CmdArgs.push_back("-pie");
438 CmdArgs.push_back("--no-dynamic-linker");
439 CmdArgs.push_back("-z");
440 CmdArgs.push_back("text");
441 } else if (IsStatic) {
442 CmdArgs.push_back("-static");
443 } else if (!Args.hasArg(options::OPT_r)) {
444 if (Args.hasArg(options::OPT_rdynamic))
445 CmdArgs.push_back("-export-dynamic");
446 if (!IsShared) {
447 IsPIE = Args.hasFlag(options::OPT_pie, options::OPT_no_pie,
448 ToolChain.isPIEDefault(Args));
449 if (IsPIE)
450 CmdArgs.push_back("-pie");
451 CmdArgs.push_back("-dynamic-linker");
452 CmdArgs.push_back(Args.MakeArgString(Twine(D.DyldPrefix) +
453 ToolChain.getDynamicLinker(Args)));
454 }
455 }
456
457 CmdArgs.push_back("-o");
458 CmdArgs.push_back(Output.getFilename());
459
460 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles,
461 options::OPT_r)) {
462 if (!isAndroid && !IsIAMCU) {
463 const char *crt1 = nullptr;
464 if (!Args.hasArg(options::OPT_shared)) {
465 if (Args.hasArg(options::OPT_pg))
466 crt1 = "gcrt1.o";
467 else if (IsPIE)
468 crt1 = "Scrt1.o";
469 else if (IsStaticPIE)
470 crt1 = "rcrt1.o";
471 else
472 crt1 = "crt1.o";
473 }
474 if (crt1)
475 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crt1)));
476
477 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o")));
478 }
479
480 if (IsVE) {
481 CmdArgs.push_back("-z");
482 CmdArgs.push_back("max-page-size=0x4000000");
483 }
484
485 if (IsIAMCU)
486 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt0.o")));
487 else if (HasCRTBeginEndFiles) {
488 std::string P;
489 if (ToolChain.GetRuntimeLibType(Args) == ToolChain::RLT_CompilerRT &&
490 !isAndroid) {
491 std::string crtbegin = ToolChain.getCompilerRT(Args, "crtbegin",
492 ToolChain::FT_Object);
493 if (ToolChain.getVFS().exists(crtbegin))
494 P = crtbegin;
495 }
496 if (P.empty()) {
497 const char *crtbegin;
498 if (Args.hasArg(options::OPT_shared))
499 crtbegin = isAndroid ? "crtbegin_so.o" : "crtbeginS.o";
500 else if (IsStatic)
501 crtbegin = isAndroid ? "crtbegin_static.o" : "crtbeginT.o";
502 else if (IsPIE || IsStaticPIE)
503 crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbeginS.o";
504 else
505 crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbegin.o";
506 P = ToolChain.GetFilePath(crtbegin);
507 }
508 CmdArgs.push_back(Args.MakeArgString(P));
509 }
510
511 // Add crtfastmath.o if available and fast math is enabled.
512 ToolChain.addFastMathRuntimeIfAvailable(Args, CmdArgs);
513
514 if (isAndroid && Args.hasFlag(options::OPT_fandroid_pad_segment,
515 options::OPT_fno_android_pad_segment, false))
516 CmdArgs.push_back(
517 Args.MakeArgString(ToolChain.GetFilePath("crt_pad_segment.o")));
518 }
519
520 Args.addAllArgs(CmdArgs, {options::OPT_L, options::OPT_u});
521
522 ToolChain.AddFilePathLibArgs(Args, CmdArgs);
523
524 if (D.isUsingLTO()) {
525 assert(!Inputs.empty() && "Must have at least one input.");
526 // Find the first filename InputInfo object.
527 auto Input = llvm::find_if(
528 Inputs, [](const InputInfo &II) -> bool { return II.isFilename(); });
529 if (Input == Inputs.end())
530 // For a very rare case, all of the inputs to the linker are
531 // InputArg. If that happens, just use the first InputInfo.
532 Input = Inputs.begin();
533
534 addLTOOptions(ToolChain, Args, CmdArgs, Output, *Input,
535 D.getLTOMode() == LTOK_Thin);
536 }
537
538 if (Args.hasArg(options::OPT_Z_Xlinker__no_demangle))
539 CmdArgs.push_back("--no-demangle");
540
541 bool NeedsSanitizerDeps = addSanitizerRuntimes(ToolChain, Args, CmdArgs);
542 bool NeedsXRayDeps = addXRayRuntime(ToolChain, Args, CmdArgs);
543 addLinkerCompressDebugSectionsOption(ToolChain, Args, CmdArgs);
544 AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA);
545
546 addHIPRuntimeLibArgs(ToolChain, C, Args, CmdArgs);
547
548 // The profile runtime also needs access to system libraries.
549 getToolChain().addProfileRTLibs(Args, CmdArgs);
550
551 if (D.CCCIsCXX() &&
552 !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs,
553 options::OPT_r)) {
554 if (ToolChain.ShouldLinkCXXStdlib(Args)) {
555 bool OnlyLibstdcxxStatic = Args.hasArg(options::OPT_static_libstdcxx) &&
556 !Args.hasArg(options::OPT_static);
557 if (OnlyLibstdcxxStatic)
558 CmdArgs.push_back("-Bstatic");
559 ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs);
560 if (OnlyLibstdcxxStatic)
561 CmdArgs.push_back("-Bdynamic");
562 }
563 CmdArgs.push_back("-lm");
564 }
565
566 // Silence warnings when linking C code with a C++ '-stdlib' argument.
567 Args.ClaimAllArgs(options::OPT_stdlib_EQ);
568
569 // Additional linker set-up and flags for Fortran. This is required in order
570 // to generate executables. As Fortran runtime depends on the C runtime,
571 // these dependencies need to be listed before the C runtime below (i.e.
572 // AddRunTimeLibs).
573 if (D.IsFlangMode() &&
574 !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
575 addFortranRuntimeLibraryPath(ToolChain, Args, CmdArgs);
576 addFortranRuntimeLibs(ToolChain, Args, CmdArgs);
577 CmdArgs.push_back("-lm");
578 }
579
580 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_r)) {
581 if (!Args.hasArg(options::OPT_nodefaultlibs)) {
582 if (IsStatic || IsStaticPIE)
583 CmdArgs.push_back("--start-group");
584
585 if (NeedsSanitizerDeps)
586 linkSanitizerRuntimeDeps(ToolChain, Args, CmdArgs);
587
588 if (NeedsXRayDeps)
589 linkXRayRuntimeDeps(ToolChain, Args, CmdArgs);
590
591 bool WantPthread = Args.hasArg(options::OPT_pthread) ||
592 Args.hasArg(options::OPT_pthreads);
593
594 // Use the static OpenMP runtime with -static-openmp
595 bool StaticOpenMP = Args.hasArg(options::OPT_static_openmp) &&
596 !Args.hasArg(options::OPT_static);
597
598 // FIXME: Only pass GompNeedsRT = true for platforms with libgomp that
599 // require librt. Most modern Linux platforms do, but some may not.
600 if (addOpenMPRuntime(C, CmdArgs, ToolChain, Args, StaticOpenMP,
601 JA.isHostOffloading(Action::OFK_OpenMP),
602 /* GompNeedsRT= */ true))
603 // OpenMP runtimes implies pthreads when using the GNU toolchain.
604 // FIXME: Does this really make sense for all GNU toolchains?
605 WantPthread = true;
606
607 AddRunTimeLibs(ToolChain, D, CmdArgs, Args);
608
609 // LLVM support for atomics on 32-bit SPARC V8+ is incomplete, so
610 // forcibly link with libatomic as a workaround.
611 // TODO: Issue #41880 and D118021.
612 if (getToolChain().getTriple().getArch() == llvm::Triple::sparc) {
613 CmdArgs.push_back("--push-state");
614 CmdArgs.push_back("--as-needed");
615 CmdArgs.push_back("-latomic");
616 CmdArgs.push_back("--pop-state");
617 }
618
619 // We don't need libpthread neither for bionic (Android) nor for musl,
620 // (used by OHOS as runtime library).
621 if (WantPthread && !isAndroid && !isOHOSFamily)
622 CmdArgs.push_back("-lpthread");
623
624 if (Args.hasArg(options::OPT_fsplit_stack))
625 CmdArgs.push_back("--wrap=pthread_create");
626
627 if (!Args.hasArg(options::OPT_nolibc))
628 CmdArgs.push_back("-lc");
629
630 // Add IAMCU specific libs, if needed.
631 if (IsIAMCU)
632 CmdArgs.push_back("-lgloss");
633
634 if (IsStatic || IsStaticPIE)
635 CmdArgs.push_back("--end-group");
636 else
637 AddRunTimeLibs(ToolChain, D, CmdArgs, Args);
638
639 // Add IAMCU specific libs (outside the group), if needed.
640 if (IsIAMCU) {
641 CmdArgs.push_back("--as-needed");
642 CmdArgs.push_back("-lsoftfp");
643 CmdArgs.push_back("--no-as-needed");
644 }
645 }
646
647 if (!Args.hasArg(options::OPT_nostartfiles) && !IsIAMCU) {
648 if (HasCRTBeginEndFiles) {
649 std::string P;
650 if (ToolChain.GetRuntimeLibType(Args) == ToolChain::RLT_CompilerRT &&
651 !isAndroid) {
652 std::string crtend = ToolChain.getCompilerRT(Args, "crtend",
653 ToolChain::FT_Object);
654 if (ToolChain.getVFS().exists(crtend))
655 P = crtend;
656 }
657 if (P.empty()) {
658 const char *crtend;
659 if (Args.hasArg(options::OPT_shared))
660 crtend = isAndroid ? "crtend_so.o" : "crtendS.o";
661 else if (IsPIE || IsStaticPIE)
662 crtend = isAndroid ? "crtend_android.o" : "crtendS.o";
663 else
664 crtend = isAndroid ? "crtend_android.o" : "crtend.o";
665 P = ToolChain.GetFilePath(crtend);
666 }
667 CmdArgs.push_back(Args.MakeArgString(P));
668 }
669 if (!isAndroid)
670 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o")));
671 }
672 }
673
674 Args.addAllArgs(CmdArgs, {options::OPT_T, options::OPT_t});
675
676 const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath());
677 C.addCommand(std::make_unique<Command>(JA, *this,
678 ResponseFileSupport::AtFileCurCP(),
679 Exec, CmdArgs, Inputs, Output));
680}
681
682void tools::gnutools::Assembler::ConstructJob(Compilation &C,
683 const JobAction &JA,
684 const InputInfo &Output,
685 const InputInfoList &Inputs,
686 const ArgList &Args,
687 const char *LinkingOutput) const {
688 const auto &D = getToolChain().getDriver();
689
690 claimNoWarnArgs(Args);
691
692 ArgStringList CmdArgs;
693
694 llvm::Reloc::Model RelocationModel;
695 unsigned PICLevel;
696 bool IsPIE;
697 const char *DefaultAssembler = "as";
698 // Enforce GNU as on Solaris; the native assembler's input syntax isn't fully
699 // compatible.
700 if (getToolChain().getTriple().isOSSolaris())
701 DefaultAssembler = "gas";
702 std::tie(RelocationModel, PICLevel, IsPIE) =
703 ParsePICArgs(getToolChain(), Args);
704
705 if (const Arg *A = Args.getLastArg(options::OPT_gz, options::OPT_gz_EQ)) {
706 if (A->getOption().getID() == options::OPT_gz) {
707 CmdArgs.push_back("--compress-debug-sections");
708 } else {
709 StringRef Value = A->getValue();
710 if (Value == "none" || Value == "zlib" || Value == "zstd") {
711 CmdArgs.push_back(
712 Args.MakeArgString("--compress-debug-sections=" + Twine(Value)));
713 } else {
714 D.Diag(diag::err_drv_unsupported_option_argument)
715 << A->getSpelling() << Value;
716 }
717 }
718 }
719
720 switch (getToolChain().getArch()) {
721 default:
722 break;
723 // Add --32/--64 to make sure we get the format we want.
724 // This is incomplete
725 case llvm::Triple::x86:
726 CmdArgs.push_back("--32");
727 break;
728 case llvm::Triple::x86_64:
729 if (getToolChain().getTriple().isX32())
730 CmdArgs.push_back("--x32");
731 else
732 CmdArgs.push_back("--64");
733 break;
734 case llvm::Triple::ppc: {
735 CmdArgs.push_back("-a32");
736 CmdArgs.push_back("-mppc");
737 CmdArgs.push_back("-mbig-endian");
738 CmdArgs.push_back(ppc::getPPCAsmModeForCPU(
739 getCPUName(D, Args, getToolChain().getTriple())));
740 break;
741 }
742 case llvm::Triple::ppcle: {
743 CmdArgs.push_back("-a32");
744 CmdArgs.push_back("-mppc");
745 CmdArgs.push_back("-mlittle-endian");
746 CmdArgs.push_back(ppc::getPPCAsmModeForCPU(
747 getCPUName(D, Args, getToolChain().getTriple())));
748 break;
749 }
750 case llvm::Triple::ppc64: {
751 CmdArgs.push_back("-a64");
752 CmdArgs.push_back("-mppc64");
753 CmdArgs.push_back("-mbig-endian");
754 CmdArgs.push_back(ppc::getPPCAsmModeForCPU(
755 getCPUName(D, Args, getToolChain().getTriple())));
756 break;
757 }
758 case llvm::Triple::ppc64le: {
759 CmdArgs.push_back("-a64");
760 CmdArgs.push_back("-mppc64");
761 CmdArgs.push_back("-mlittle-endian");
762 CmdArgs.push_back(ppc::getPPCAsmModeForCPU(
763 getCPUName(D, Args, getToolChain().getTriple())));
764 break;
765 }
766 case llvm::Triple::riscv32:
767 case llvm::Triple::riscv64: {
768 StringRef ABIName = riscv::getRISCVABI(Args, getToolChain().getTriple());
769 CmdArgs.push_back("-mabi");
770 CmdArgs.push_back(ABIName.data());
771 std::string MArchName =
772 riscv::getRISCVArch(Args, getToolChain().getTriple());
773 CmdArgs.push_back("-march");
774 CmdArgs.push_back(Args.MakeArgString(MArchName));
775 if (!Args.hasFlag(options::OPT_mrelax, options::OPT_mno_relax, true))
776 Args.addOptOutFlag(CmdArgs, options::OPT_mrelax, options::OPT_mno_relax);
777 break;
778 }
779 case llvm::Triple::sparc:
780 case llvm::Triple::sparcel: {
781 CmdArgs.push_back("-32");
782 std::string CPU = getCPUName(D, Args, getToolChain().getTriple());
783 CmdArgs.push_back(
784 sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple()));
785 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
786 break;
787 }
788 case llvm::Triple::sparcv9: {
789 CmdArgs.push_back("-64");
790 std::string CPU = getCPUName(D, Args, getToolChain().getTriple());
791 CmdArgs.push_back(
792 sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple()));
793 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
794 break;
795 }
796 case llvm::Triple::arm:
797 case llvm::Triple::armeb:
798 case llvm::Triple::thumb:
799 case llvm::Triple::thumbeb: {
800 const llvm::Triple &Triple2 = getToolChain().getTriple();
801 CmdArgs.push_back(arm::isARMBigEndian(Triple2, Args) ? "-EB" : "-EL");
802 switch (Triple2.getSubArch()) {
803 case llvm::Triple::ARMSubArch_v7:
804 CmdArgs.push_back("-mfpu=neon");
805 break;
806 case llvm::Triple::ARMSubArch_v8:
807 CmdArgs.push_back("-mfpu=crypto-neon-fp-armv8");
808 break;
809 default:
810 break;
811 }
812
813 switch (arm::getARMFloatABI(getToolChain(), Args)) {
814 case arm::FloatABI::Invalid: llvm_unreachable("must have an ABI!");
815 case arm::FloatABI::Soft:
816 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=soft"));
817 break;
818 case arm::FloatABI::SoftFP:
819 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=softfp"));
820 break;
821 case arm::FloatABI::Hard:
822 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=hard"));
823 break;
824 }
825
826 Args.AddLastArg(CmdArgs, options::OPT_march_EQ);
827 normalizeCPUNamesForAssembler(Args, CmdArgs);
828
829 Args.AddLastArg(CmdArgs, options::OPT_mfpu_EQ);
830 // The integrated assembler doesn't implement e_flags setting behavior for
831 // -meabi=gnu (gcc -mabi={apcs-gnu,atpcs} passes -meabi=gnu to gas). For
832 // compatibility we accept but warn.
833 if (Arg *A = Args.getLastArgNoClaim(options::OPT_mabi_EQ))
834 A->ignoreTargetSpecific();
835 break;
836 }
837 case llvm::Triple::aarch64:
838 case llvm::Triple::aarch64_be: {
839 CmdArgs.push_back(
840 getToolChain().getArch() == llvm::Triple::aarch64_be ? "-EB" : "-EL");
841 Args.AddLastArg(CmdArgs, options::OPT_march_EQ);
842 normalizeCPUNamesForAssembler(Args, CmdArgs);
843
844 break;
845 }
846 // TODO: handle loongarch32.
847 case llvm::Triple::loongarch64: {
848 StringRef ABIName =
849 loongarch::getLoongArchABI(D, Args, getToolChain().getTriple());
850 CmdArgs.push_back(Args.MakeArgString("-mabi=" + ABIName));
851 break;
852 }
853 case llvm::Triple::mips:
854 case llvm::Triple::mipsel:
855 case llvm::Triple::mips64:
856 case llvm::Triple::mips64el: {
857 StringRef CPUName;
858 StringRef ABIName;
859 mips::getMipsCPUAndABI(Args, getToolChain().getTriple(), CPUName, ABIName);
860 ABIName = mips::getGnuCompatibleMipsABIName(ABIName);
861
862 CmdArgs.push_back("-march");
863 CmdArgs.push_back(CPUName.data());
864
865 CmdArgs.push_back("-mabi");
866 CmdArgs.push_back(ABIName.data());
867
868 // -mno-shared should be emitted unless -fpic, -fpie, -fPIC, -fPIE,
869 // or -mshared (not implemented) is in effect.
870 if (RelocationModel == llvm::Reloc::Static)
871 CmdArgs.push_back("-mno-shared");
872
873 // LLVM doesn't support -mplt yet and acts as if it is always given.
874 // However, -mplt has no effect with the N64 ABI.
875 if (ABIName != "64" && !Args.hasArg(options::OPT_mno_abicalls))
876 CmdArgs.push_back("-call_nonpic");
877
878 if (getToolChain().getTriple().isLittleEndian())
879 CmdArgs.push_back("-EL");
880 else
881 CmdArgs.push_back("-EB");
882
883 if (Arg *A = Args.getLastArg(options::OPT_mnan_EQ)) {
884 if (StringRef(A->getValue()) == "2008")
885 CmdArgs.push_back(Args.MakeArgString("-mnan=2008"));
886 }
887
888 // Add the last -mfp32/-mfpxx/-mfp64 or -mfpxx if it is enabled by default.
889 if (Arg *A = Args.getLastArg(options::OPT_mfp32, options::OPT_mfpxx,
890 options::OPT_mfp64)) {
891 A->claim();
892 A->render(Args, CmdArgs);
893 } else if (mips::shouldUseFPXX(
894 Args, getToolChain().getTriple(), CPUName, ABIName,
895 mips::getMipsFloatABI(getToolChain().getDriver(), Args,
896 getToolChain().getTriple())))
897 CmdArgs.push_back("-mfpxx");
898
899 // Pass on -mmips16 or -mno-mips16. However, the assembler equivalent of
900 // -mno-mips16 is actually -no-mips16.
901 if (Arg *A =
902 Args.getLastArg(options::OPT_mips16, options::OPT_mno_mips16)) {
903 if (A->getOption().matches(options::OPT_mips16)) {
904 A->claim();
905 A->render(Args, CmdArgs);
906 } else {
907 A->claim();
908 CmdArgs.push_back("-no-mips16");
909 }
910 }
911
912 Args.AddLastArg(CmdArgs, options::OPT_mmicromips,
913 options::OPT_mno_micromips);
914 Args.AddLastArg(CmdArgs, options::OPT_mdsp, options::OPT_mno_dsp);
915 Args.AddLastArg(CmdArgs, options::OPT_mdspr2, options::OPT_mno_dspr2);
916
917 if (Arg *A = Args.getLastArg(options::OPT_mmsa, options::OPT_mno_msa)) {
918 // Do not use AddLastArg because not all versions of MIPS assembler
919 // support -mmsa / -mno-msa options.
920 if (A->getOption().matches(options::OPT_mmsa))
921 CmdArgs.push_back(Args.MakeArgString("-mmsa"));
922 }
923
924 Args.AddLastArg(CmdArgs, options::OPT_mhard_float,
925 options::OPT_msoft_float);
926
927 Args.AddLastArg(CmdArgs, options::OPT_mdouble_float,
928 options::OPT_msingle_float);
929
930 Args.AddLastArg(CmdArgs, options::OPT_modd_spreg,
931 options::OPT_mno_odd_spreg);
932
933 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
934 break;
935 }
936 case llvm::Triple::systemz: {
937 // Always pass an -march option, since our default of z10 is later
938 // than the GNU assembler's default.
939 std::string CPUName =
940 systemz::getSystemZTargetCPU(Args, getToolChain().getTriple());
941 CmdArgs.push_back(Args.MakeArgString("-march=" + CPUName));
942 break;
943 }
944 case llvm::Triple::ve:
945 DefaultAssembler = "nas";
946 }
947
948 for (const Arg *A : Args.filtered(options::OPT_ffile_prefix_map_EQ,
949 options::OPT_fdebug_prefix_map_EQ)) {
950 StringRef Map = A->getValue();
951 if (!Map.contains('='))
952 D.Diag(diag::err_drv_invalid_argument_to_option)
953 << Map << A->getOption().getName();
954 else {
955 CmdArgs.push_back(Args.MakeArgString("--debug-prefix-map"));
956 CmdArgs.push_back(Args.MakeArgString(Map));
957 }
958 A->claim();
959 }
960
961 Args.AddAllArgs(CmdArgs, options::OPT_I);
962 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
963
964 CmdArgs.push_back("-o");
965 CmdArgs.push_back(Output.getFilename());
966
967 for (const auto &II : Inputs)
968 CmdArgs.push_back(II.getFilename());
969
970 if (Arg *A = Args.getLastArg(options::OPT_g_Flag, options::OPT_gN_Group,
971 options::OPT_gdwarf_2, options::OPT_gdwarf_3,
972 options::OPT_gdwarf_4, options::OPT_gdwarf_5,
973 options::OPT_gdwarf))
974 if (!A->getOption().matches(options::OPT_g0)) {
975 Args.AddLastArg(CmdArgs, options::OPT_g_Flag);
976
977 unsigned DwarfVersion = getDwarfVersion(getToolChain(), Args);
978 CmdArgs.push_back(Args.MakeArgString("-gdwarf-" + Twine(DwarfVersion)));
979 }
980
981 const char *Exec =
982 Args.MakeArgString(getToolChain().GetProgramPath(DefaultAssembler));
983 C.addCommand(std::make_unique<Command>(JA, *this,
984 ResponseFileSupport::AtFileCurCP(),
985 Exec, CmdArgs, Inputs, Output));
986
987 // Handle the debug info splitting at object creation time if we're
988 // creating an object.
989 // TODO: Currently only works on linux with newer objcopy.
990 if (Args.hasArg(options::OPT_gsplit_dwarf) &&
991 getToolChain().getTriple().isOSLinux())
992 SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output,
993 SplitDebugName(JA, Args, Inputs[0], Output));
994}
995
996namespace {
997// Filter to remove Multilibs that don't exist as a suffix to Path
998class FilterNonExistent {
999 StringRef Base, File;
1000 llvm::vfs::FileSystem &VFS;
1001
1002public:
1003 FilterNonExistent(StringRef Base, StringRef File, llvm::vfs::FileSystem &VFS)
1004 : Base(Base), File(File), VFS(VFS) {}
1005 bool operator()(const Multilib &M) {
1006 return !VFS.exists(Base + M.gccSuffix() + File);
1007 }
1008};
1009} // end anonymous namespace
1010
1011static bool isSoftFloatABI(const ArgList &Args) {
1012 Arg *A = Args.getLastArg(options::OPT_msoft_float, options::OPT_mhard_float,
1013 options::OPT_mfloat_abi_EQ);
1014 if (!A)
1015 return false;
1016
1017 return A->getOption().matches(options::OPT_msoft_float) ||
1018 (A->getOption().matches(options::OPT_mfloat_abi_EQ) &&
1019 A->getValue() == StringRef("soft"));
1020}
1021
1022static bool isArmOrThumbArch(llvm::Triple::ArchType Arch) {
1023 return Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb;
1024}
1025
1026static bool isMipsEL(llvm::Triple::ArchType Arch) {
1027 return Arch == llvm::Triple::mipsel || Arch == llvm::Triple::mips64el;
1028}
1029
1030static bool isMips16(const ArgList &Args) {
1031 Arg *A = Args.getLastArg(options::OPT_mips16, options::OPT_mno_mips16);
1032 return A && A->getOption().matches(options::OPT_mips16);
1033}
1034
1035static bool isMicroMips(const ArgList &Args) {
1036 Arg *A = Args.getLastArg(options::OPT_mmicromips, options::OPT_mno_micromips);
1037 return A && A->getOption().matches(options::OPT_mmicromips);
1038}
1039
1040static bool isMSP430(llvm::Triple::ArchType Arch) {
1041 return Arch == llvm::Triple::msp430;
1042}
1043
1044static bool findMipsCsMultilibs(const Driver &D,
1045 const Multilib::flags_list &Flags,
1046 FilterNonExistent &NonExistent,
1047 DetectedMultilibs &Result) {
1048 // Check for Code Sourcery toolchain multilibs
1049 MultilibSet CSMipsMultilibs;
1050 {
1051 auto MArchMips16 = MultilibBuilder("/mips16").flag("-m32").flag("-mips16");
1052
1053 auto MArchMicroMips =
1054 MultilibBuilder("/micromips").flag("-m32").flag("-mmicromips");
1055
1056 auto MArchDefault = MultilibBuilder("")
1057 .flag("-mips16", /*Disallow=*/true)
1058 .flag("-mmicromips", /*Disallow=*/true);
1059
1060 auto UCLibc = MultilibBuilder("/uclibc").flag("-muclibc");
1061
1062 auto SoftFloat = MultilibBuilder("/soft-float").flag("-msoft-float");
1063
1064 auto Nan2008 = MultilibBuilder("/nan2008").flag("-mnan=2008");
1065
1066 auto DefaultFloat = MultilibBuilder("")
1067 .flag("-msoft-float", /*Disallow=*/true)
1068 .flag("-mnan=2008", /*Disallow=*/true);
1069
1070 auto BigEndian =
1071 MultilibBuilder("").flag("-EB").flag("-EL", /*Disallow=*/true);
1072
1073 auto LittleEndian =
1074 MultilibBuilder("/el").flag("-EL").flag("-EB", /*Disallow=*/true);
1075
1076 // Note that this one's osSuffix is ""
1077 auto MAbi64 = MultilibBuilder("")
1078 .gccSuffix("/64")
1079 .includeSuffix("/64")
1080 .flag("-mabi=n64")
1081 .flag("-mabi=n32", /*Disallow=*/true)
1082 .flag("-m32", /*Disallow=*/true);
1083
1084 CSMipsMultilibs =
1085 MultilibSetBuilder()
1086 .Either(MArchMips16, MArchMicroMips, MArchDefault)
1087 .Maybe(UCLibc)
1088 .Either(SoftFloat, Nan2008, DefaultFloat)
1089 .FilterOut("/micromips/nan2008")
1090 .FilterOut("/mips16/nan2008")
1091 .Either(BigEndian, LittleEndian)
1092 .Maybe(MAbi64)
1093 .FilterOut("/mips16.*/64")
1094 .FilterOut("/micromips.*/64")
1095 .makeMultilibSet()
1096 .FilterOut(NonExistent)
1097 .setIncludeDirsCallback([](const Multilib &M) {
1098 std::vector<std::string> Dirs({"/include"});
1099 if (StringRef(M.includeSuffix()).starts_with("/uclibc"))
1100 Dirs.push_back(
1101 "/../../../../mips-linux-gnu/libc/uclibc/usr/include");
1102 else
1103 Dirs.push_back("/../../../../mips-linux-gnu/libc/usr/include");
1104 return Dirs;
1105 });
1106 }
1107
1108 MultilibSet DebianMipsMultilibs;
1109 {
1110 MultilibBuilder MAbiN32 =
1111 MultilibBuilder().gccSuffix("/n32").includeSuffix("/n32").flag(
1112 "-mabi=n32");
1113
1114 MultilibBuilder M64 = MultilibBuilder()
1115 .gccSuffix("/64")
1116 .includeSuffix("/64")
1117 .flag("-m64")
1118 .flag("-m32", /*Disallow=*/true)
1119 .flag("-mabi=n32", /*Disallow=*/true);
1120
1121 MultilibBuilder M32 = MultilibBuilder()
1122 .gccSuffix("/32")
1123 .flag("-m64", /*Disallow=*/true)
1124 .flag("-m32")
1125 .flag("-mabi=n32", /*Disallow=*/true);
1126
1127 DebianMipsMultilibs = MultilibSetBuilder()
1128 .Either(M32, M64, MAbiN32)
1129 .makeMultilibSet()
1130 .FilterOut(NonExistent);
1131 }
1132
1133 // Sort candidates. Toolchain that best meets the directories tree goes first.
1134 // Then select the first toolchains matches command line flags.
1135 MultilibSet *Candidates[] = {&CSMipsMultilibs, &DebianMipsMultilibs};
1136 if (CSMipsMultilibs.size() < DebianMipsMultilibs.size())
1137 std::iter_swap(Candidates, Candidates + 1);
1138 for (const MultilibSet *Candidate : Candidates) {
1139 if (Candidate->select(D, Flags, Result.SelectedMultilibs)) {
1140 if (Candidate == &DebianMipsMultilibs)
1141 Result.BiarchSibling = Multilib();
1142 Result.Multilibs = *Candidate;
1143 return true;
1144 }
1145 }
1146 return false;
1147}
1148
1149static bool findMipsMuslMultilibs(const Driver &D,
1150 const Multilib::flags_list &Flags,
1151 FilterNonExistent &NonExistent,
1152 DetectedMultilibs &Result) {
1153 // Musl toolchain multilibs
1154 MultilibSet MuslMipsMultilibs;
1155 {
1156 auto MArchMipsR2 = MultilibBuilder("")
1157 .osSuffix("/mips-r2-hard-musl")
1158 .flag("-EB")
1159 .flag("-EL", /*Disallow=*/true)
1160 .flag("-march=mips32r2");
1161
1162 auto MArchMipselR2 = MultilibBuilder("/mipsel-r2-hard-musl")
1163 .flag("-EB", /*Disallow=*/true)
1164 .flag("-EL")
1165 .flag("-march=mips32r2");
1166
1167 MuslMipsMultilibs = MultilibSetBuilder()
1168 .Either(MArchMipsR2, MArchMipselR2)
1169 .makeMultilibSet();
1170
1171 // Specify the callback that computes the include directories.
1172 MuslMipsMultilibs.setIncludeDirsCallback([](const Multilib &M) {
1173 return std::vector<std::string>(
1174 {"/../sysroot" + M.osSuffix() + "/usr/include"});
1175 });
1176 }
1177 if (MuslMipsMultilibs.select(D, Flags, Result.SelectedMultilibs)) {
1178 Result.Multilibs = MuslMipsMultilibs;
1179 return true;
1180 }
1181 return false;
1182}
1183
1184static bool findMipsMtiMultilibs(const Driver &D,
1185 const Multilib::flags_list &Flags,
1186 FilterNonExistent &NonExistent,
1187 DetectedMultilibs &Result) {
1188 // CodeScape MTI toolchain v1.2 and early.
1189 MultilibSet MtiMipsMultilibsV1;
1190 {
1191 auto MArchMips32 = MultilibBuilder("/mips32")
1192 .flag("-m32")
1193 .flag("-m64", /*Disallow=*/true)
1194 .flag("-mmicromips", /*Disallow=*/true)
1195 .flag("-march=mips32");
1196
1197 auto MArchMicroMips = MultilibBuilder("/micromips")
1198 .flag("-m32")
1199 .flag("-m64", /*Disallow=*/true)
1200 .flag("-mmicromips");
1201
1202 auto MArchMips64r2 = MultilibBuilder("/mips64r2")
1203 .flag("-m32", /*Disallow=*/true)
1204 .flag("-m64")
1205 .flag("-march=mips64r2");
1206
1207 auto MArchMips64 = MultilibBuilder("/mips64")
1208 .flag("-m32", /*Disallow=*/true)
1209 .flag("-m64")
1210 .flag("-march=mips64r2", /*Disallow=*/true);
1211
1212 auto MArchDefault = MultilibBuilder("")
1213 .flag("-m32")
1214 .flag("-m64", /*Disallow=*/true)
1215 .flag("-mmicromips", /*Disallow=*/true)
1216 .flag("-march=mips32r2");
1217
1218 auto Mips16 = MultilibBuilder("/mips16").flag("-mips16");
1219
1220 auto UCLibc = MultilibBuilder("/uclibc").flag("-muclibc");
1221
1222 auto MAbi64 = MultilibBuilder("/64")
1223 .flag("-mabi=n64")
1224 .flag("-mabi=n32", /*Disallow=*/true)
1225 .flag("-m32", /*Disallow=*/true);
1226
1227 auto BigEndian =
1228 MultilibBuilder("").flag("-EB").flag("-EL", /*Disallow=*/true);
1229
1230 auto LittleEndian =
1231 MultilibBuilder("/el").flag("-EL").flag("-EB", /*Disallow=*/true);
1232
1233 auto SoftFloat = MultilibBuilder("/sof").flag("-msoft-float");
1234
1235 auto Nan2008 = MultilibBuilder("/nan2008").flag("-mnan=2008");
1236
1237 MtiMipsMultilibsV1 =
1238 MultilibSetBuilder()
1239 .Either(MArchMips32, MArchMicroMips, MArchMips64r2, MArchMips64,
1240 MArchDefault)
1241 .Maybe(UCLibc)
1242 .Maybe(Mips16)
1243 .FilterOut("/mips64/mips16")
1244 .FilterOut("/mips64r2/mips16")
1245 .FilterOut("/micromips/mips16")
1246 .Maybe(MAbi64)
1247 .FilterOut("/micromips/64")
1248 .FilterOut("/mips32/64")
1249 .FilterOut("^/64")
1250 .FilterOut("/mips16/64")
1251 .Either(BigEndian, LittleEndian)
1252 .Maybe(SoftFloat)
1253 .Maybe(Nan2008)
1254 .FilterOut(".*sof/nan2008")
1255 .makeMultilibSet()
1256 .FilterOut(NonExistent)
1257 .setIncludeDirsCallback([](const Multilib &M) {
1258 std::vector<std::string> Dirs({"/include"});
1259 if (StringRef(M.includeSuffix()).starts_with("/uclibc"))
1260 Dirs.push_back("/../../../../sysroot/uclibc/usr/include");
1261 else
1262 Dirs.push_back("/../../../../sysroot/usr/include");
1263 return Dirs;
1264 });
1265 }
1266
1267 // CodeScape IMG toolchain starting from v1.3.
1268 MultilibSet MtiMipsMultilibsV2;
1269 {
1270 auto BeHard = MultilibBuilder("/mips-r2-hard")
1271 .flag("-EB")
1272 .flag("-msoft-float", /*Disallow=*/true)
1273 .flag("-mnan=2008", /*Disallow=*/true)
1274 .flag("-muclibc", /*Disallow=*/true);
1275 auto BeSoft = MultilibBuilder("/mips-r2-soft")
1276 .flag("-EB")
1277 .flag("-msoft-float")
1278 .flag("-mnan=2008", /*Disallow=*/true);
1279 auto ElHard = MultilibBuilder("/mipsel-r2-hard")
1280 .flag("-EL")
1281 .flag("-msoft-float", /*Disallow=*/true)
1282 .flag("-mnan=2008", /*Disallow=*/true)
1283 .flag("-muclibc", /*Disallow=*/true);
1284 auto ElSoft = MultilibBuilder("/mipsel-r2-soft")
1285 .flag("-EL")
1286 .flag("-msoft-float")
1287 .flag("-mnan=2008", /*Disallow=*/true)
1288 .flag("-mmicromips", /*Disallow=*/true);
1289 auto BeHardNan = MultilibBuilder("/mips-r2-hard-nan2008")
1290 .flag("-EB")
1291 .flag("-msoft-float", /*Disallow=*/true)
1292 .flag("-mnan=2008")
1293 .flag("-muclibc", /*Disallow=*/true);
1294 auto ElHardNan = MultilibBuilder("/mipsel-r2-hard-nan2008")
1295 .flag("-EL")
1296 .flag("-msoft-float", /*Disallow=*/true)
1297 .flag("-mnan=2008")
1298 .flag("-muclibc", /*Disallow=*/true)
1299 .flag("-mmicromips", /*Disallow=*/true);
1300 auto BeHardNanUclibc = MultilibBuilder("/mips-r2-hard-nan2008-uclibc")
1301 .flag("-EB")
1302 .flag("-msoft-float", /*Disallow=*/true)
1303 .flag("-mnan=2008")
1304 .flag("-muclibc");
1305 auto ElHardNanUclibc = MultilibBuilder("/mipsel-r2-hard-nan2008-uclibc")
1306 .flag("-EL")
1307 .flag("-msoft-float", /*Disallow=*/true)
1308 .flag("-mnan=2008")
1309 .flag("-muclibc");
1310 auto BeHardUclibc = MultilibBuilder("/mips-r2-hard-uclibc")
1311 .flag("-EB")
1312 .flag("-msoft-float", /*Disallow=*/true)
1313 .flag("-mnan=2008", /*Disallow=*/true)
1314 .flag("-muclibc");
1315 auto ElHardUclibc = MultilibBuilder("/mipsel-r2-hard-uclibc")
1316 .flag("-EL")
1317 .flag("-msoft-float", /*Disallow=*/true)
1318 .flag("-mnan=2008", /*Disallow=*/true)
1319 .flag("-muclibc");
1320 auto ElMicroHardNan = MultilibBuilder("/micromipsel-r2-hard-nan2008")
1321 .flag("-EL")
1322 .flag("-msoft-float", /*Disallow=*/true)
1323 .flag("-mnan=2008")
1324 .flag("-mmicromips");
1325 auto ElMicroSoft = MultilibBuilder("/micromipsel-r2-soft")
1326 .flag("-EL")
1327 .flag("-msoft-float")
1328 .flag("-mnan=2008", /*Disallow=*/true)
1329 .flag("-mmicromips");
1330
1331 auto O32 = MultilibBuilder("/lib")
1332 .osSuffix("")
1333 .flag("-mabi=n32", /*Disallow=*/true)
1334 .flag("-mabi=n64", /*Disallow=*/true);
1335 auto N32 = MultilibBuilder("/lib32")
1336 .osSuffix("")
1337 .flag("-mabi=n32")
1338 .flag("-mabi=n64", /*Disallow=*/true);
1339 auto N64 = MultilibBuilder("/lib64")
1340 .osSuffix("")
1341 .flag("-mabi=n32", /*Disallow=*/true)
1342 .flag("-mabi=n64");
1343
1344 MtiMipsMultilibsV2 =
1345 MultilibSetBuilder()
1346 .Either({BeHard, BeSoft, ElHard, ElSoft, BeHardNan, ElHardNan,
1347 BeHardNanUclibc, ElHardNanUclibc, BeHardUclibc,
1348 ElHardUclibc, ElMicroHardNan, ElMicroSoft})
1349 .Either(O32, N32, N64)
1350 .makeMultilibSet()
1351 .FilterOut(NonExistent)
1352 .setIncludeDirsCallback([](const Multilib &M) {
1353 return std::vector<std::string>({"/../../../../sysroot" +
1354 M.includeSuffix() +
1355 "/../usr/include"});
1356 })
1357 .setFilePathsCallback([](const Multilib &M) {
1358 return std::vector<std::string>(
1359 {"/../../../../mips-mti-linux-gnu/lib" + M.gccSuffix()});
1360 });
1361 }
1362 for (auto *Candidate : {&MtiMipsMultilibsV1, &MtiMipsMultilibsV2}) {
1363 if (Candidate->select(D, Flags, Result.SelectedMultilibs)) {
1364 Result.Multilibs = *Candidate;
1365 return true;
1366 }
1367 }
1368 return false;
1369}
1370
1371static bool findMipsImgMultilibs(const Driver &D,
1372 const Multilib::flags_list &Flags,
1373 FilterNonExistent &NonExistent,
1374 DetectedMultilibs &Result) {
1375 // CodeScape IMG toolchain v1.2 and early.
1376 MultilibSet ImgMultilibsV1;
1377 {
1378 auto Mips64r6 = MultilibBuilder("/mips64r6")
1379 .flag("-m64")
1380 .flag("-m32", /*Disallow=*/true);
1381
1382 auto LittleEndian =
1383 MultilibBuilder("/el").flag("-EL").flag("-EB", /*Disallow=*/true);
1384
1385 auto MAbi64 = MultilibBuilder("/64")
1386 .flag("-mabi=n64")
1387 .flag("-mabi=n32", /*Disallow=*/true)
1388 .flag("-m32", /*Disallow=*/true);
1389
1390 ImgMultilibsV1 =
1391 MultilibSetBuilder()
1392 .Maybe(Mips64r6)
1393 .Maybe(MAbi64)
1394 .Maybe(LittleEndian)
1395 .makeMultilibSet()
1396 .FilterOut(NonExistent)
1397 .setIncludeDirsCallback([](const Multilib &M) {
1398 return std::vector<std::string>(
1399 {"/include", "/../../../../sysroot/usr/include"});
1400 });
1401 }
1402
1403 // CodeScape IMG toolchain starting from v1.3.
1404 MultilibSet ImgMultilibsV2;
1405 {
1406 auto BeHard = MultilibBuilder("/mips-r6-hard")
1407 .flag("-EB")
1408 .flag("-msoft-float", /*Disallow=*/true)
1409 .flag("-mmicromips", /*Disallow=*/true);
1410 auto BeSoft = MultilibBuilder("/mips-r6-soft")
1411 .flag("-EB")
1412 .flag("-msoft-float")
1413 .flag("-mmicromips", /*Disallow=*/true);
1414 auto ElHard = MultilibBuilder("/mipsel-r6-hard")
1415 .flag("-EL")
1416 .flag("-msoft-float", /*Disallow=*/true)
1417 .flag("-mmicromips", /*Disallow=*/true);
1418 auto ElSoft = MultilibBuilder("/mipsel-r6-soft")
1419 .flag("-EL")
1420 .flag("-msoft-float")
1421 .flag("-mmicromips", /*Disallow=*/true);
1422 auto BeMicroHard = MultilibBuilder("/micromips-r6-hard")
1423 .flag("-EB")
1424 .flag("-msoft-float", /*Disallow=*/true)
1425 .flag("-mmicromips");
1426 auto BeMicroSoft = MultilibBuilder("/micromips-r6-soft")
1427 .flag("-EB")
1428 .flag("-msoft-float")
1429 .flag("-mmicromips");
1430 auto ElMicroHard = MultilibBuilder("/micromipsel-r6-hard")
1431 .flag("-EL")
1432 .flag("-msoft-float", /*Disallow=*/true)
1433 .flag("-mmicromips");
1434 auto ElMicroSoft = MultilibBuilder("/micromipsel-r6-soft")
1435 .flag("-EL")
1436 .flag("-msoft-float")
1437 .flag("-mmicromips");
1438
1439 auto O32 = MultilibBuilder("/lib")
1440 .osSuffix("")
1441 .flag("-mabi=n32", /*Disallow=*/true)
1442 .flag("-mabi=n64", /*Disallow=*/true);
1443 auto N32 = MultilibBuilder("/lib32")
1444 .osSuffix("")
1445 .flag("-mabi=n32")
1446 .flag("-mabi=n64", /*Disallow=*/true);
1447 auto N64 = MultilibBuilder("/lib64")
1448 .osSuffix("")
1449 .flag("-mabi=n32", /*Disallow=*/true)
1450 .flag("-mabi=n64");
1451
1452 ImgMultilibsV2 =
1453 MultilibSetBuilder()
1454 .Either({BeHard, BeSoft, ElHard, ElSoft, BeMicroHard, BeMicroSoft,
1455 ElMicroHard, ElMicroSoft})
1456 .Either(O32, N32, N64)
1457 .makeMultilibSet()
1458 .FilterOut(NonExistent)
1459 .setIncludeDirsCallback([](const Multilib &M) {
1460 return std::vector<std::string>({"/../../../../sysroot" +
1461 M.includeSuffix() +
1462 "/../usr/include"});
1463 })
1464 .setFilePathsCallback([](const Multilib &M) {
1465 return std::vector<std::string>(
1466 {"/../../../../mips-img-linux-gnu/lib" + M.gccSuffix()});
1467 });
1468 }
1469 for (auto *Candidate : {&ImgMultilibsV1, &ImgMultilibsV2}) {
1470 if (Candidate->select(D, Flags, Result.SelectedMultilibs)) {
1471 Result.Multilibs = *Candidate;
1472 return true;
1473 }
1474 }
1475 return false;
1476}
1477
1478bool clang::driver::findMIPSMultilibs(const Driver &D,
1479 const llvm::Triple &TargetTriple,
1480 StringRef Path, const ArgList &Args,
1481 DetectedMultilibs &Result) {
1482 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1483
1484 StringRef CPUName;
1485 StringRef ABIName;
1486 tools::mips::getMipsCPUAndABI(Args, TargetTriple, CPUName, ABIName);
1487
1488 llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
1489
1490 Multilib::flags_list Flags;
1491 addMultilibFlag(TargetTriple.isMIPS32(), "-m32", Flags);
1492 addMultilibFlag(TargetTriple.isMIPS64(), "-m64", Flags);
1493 addMultilibFlag(isMips16(Args), "-mips16", Flags);
1494 addMultilibFlag(CPUName == "mips32", "-march=mips32", Flags);
1495 addMultilibFlag(CPUName == "mips32r2" || CPUName == "mips32r3" ||
1496 CPUName == "mips32r5" || CPUName == "p5600",
1497 "-march=mips32r2", Flags);
1498 addMultilibFlag(CPUName == "mips32r6", "-march=mips32r6", Flags);
1499 addMultilibFlag(CPUName == "mips64", "-march=mips64", Flags);
1500 addMultilibFlag(CPUName == "mips64r2" || CPUName == "mips64r3" ||
1501 CPUName == "mips64r5" || CPUName == "octeon" ||
1502 CPUName == "octeon+",
1503 "-march=mips64r2", Flags);
1504 addMultilibFlag(CPUName == "mips64r6", "-march=mips64r6", Flags);
1505 addMultilibFlag(isMicroMips(Args), "-mmicromips", Flags);
1506 addMultilibFlag(tools::mips::isUCLibc(Args), "-muclibc", Flags);
1507 addMultilibFlag(tools::mips::isNaN2008(D, Args, TargetTriple), "-mnan=2008",
1508 Flags);
1509 addMultilibFlag(ABIName == "n32", "-mabi=n32", Flags);
1510 addMultilibFlag(ABIName == "n64", "-mabi=n64", Flags);
1511 addMultilibFlag(isSoftFloatABI(Args), "-msoft-float", Flags);
1512 addMultilibFlag(!isSoftFloatABI(Args), "-mhard-float", Flags);
1513 addMultilibFlag(isMipsEL(TargetArch), "-EL", Flags);
1514 addMultilibFlag(!isMipsEL(TargetArch), "-EB", Flags);
1515
1516 if (TargetTriple.getVendor() == llvm::Triple::MipsTechnologies &&
1517 TargetTriple.getOS() == llvm::Triple::Linux &&
1518 TargetTriple.getEnvironment() == llvm::Triple::UnknownEnvironment)
1519 return findMipsMuslMultilibs(D, Flags, NonExistent, Result);
1520
1521 if (TargetTriple.getVendor() == llvm::Triple::MipsTechnologies &&
1522 TargetTriple.getOS() == llvm::Triple::Linux &&
1523 TargetTriple.isGNUEnvironment())
1524 return findMipsMtiMultilibs(D, Flags, NonExistent, Result);
1525
1526 if (TargetTriple.getVendor() == llvm::Triple::ImaginationTechnologies &&
1527 TargetTriple.getOS() == llvm::Triple::Linux &&
1528 TargetTriple.isGNUEnvironment())
1529 return findMipsImgMultilibs(D, Flags, NonExistent, Result);
1530
1531 if (findMipsCsMultilibs(D, Flags, NonExistent, Result))
1532 return true;
1533
1534 // Fallback to the regular toolchain-tree structure.
1535 Multilib Default;
1536 Result.Multilibs.push_back(Default);
1537 Result.Multilibs.FilterOut(NonExistent);
1538
1539 if (Result.Multilibs.select(D, Flags, Result.SelectedMultilibs)) {
1540 Result.BiarchSibling = Multilib();
1541 return true;
1542 }
1543
1544 return false;
1545}
1546
1547static void findAndroidArmMultilibs(const Driver &D,
1548 const llvm::Triple &TargetTriple,
1549 StringRef Path, const ArgList &Args,
1550 DetectedMultilibs &Result) {
1551 // Find multilibs with subdirectories like armv7-a, thumb, armv7-a/thumb.
1552 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1553 MultilibBuilder ArmV7Multilib = MultilibBuilder("/armv7-a")
1554 .flag("-march=armv7-a")
1555 .flag("-mthumb", /*Disallow=*/true);
1556 MultilibBuilder ThumbMultilib = MultilibBuilder("/thumb")
1557 .flag("-march=armv7-a", /*Disallow=*/true)
1558 .flag("-mthumb");
1559 MultilibBuilder ArmV7ThumbMultilib =
1560 MultilibBuilder("/armv7-a/thumb").flag("-march=armv7-a").flag("-mthumb");
1561 MultilibBuilder DefaultMultilib =
1562 MultilibBuilder("")
1563 .flag("-march=armv7-a", /*Disallow=*/true)
1564 .flag("-mthumb", /*Disallow=*/true);
1565 MultilibSet AndroidArmMultilibs =
1566 MultilibSetBuilder()
1567 .Either(ThumbMultilib, ArmV7Multilib, ArmV7ThumbMultilib,
1568 DefaultMultilib)
1569 .makeMultilibSet()
1570 .FilterOut(NonExistent);
1571
1572 Multilib::flags_list Flags;
1573 llvm::StringRef Arch = Args.getLastArgValue(options::OPT_march_EQ);
1574 bool IsArmArch = TargetTriple.getArch() == llvm::Triple::arm;
1575 bool IsThumbArch = TargetTriple.getArch() == llvm::Triple::thumb;
1576 bool IsV7SubArch = TargetTriple.getSubArch() == llvm::Triple::ARMSubArch_v7;
1577 bool IsThumbMode = IsThumbArch ||
1578 Args.hasFlag(options::OPT_mthumb, options::OPT_mno_thumb, false) ||
1579 (IsArmArch && llvm::ARM::parseArchISA(Arch) == llvm::ARM::ISAKind::THUMB);
1580 bool IsArmV7Mode = (IsArmArch || IsThumbArch) &&
1581 (llvm::ARM::parseArchVersion(Arch) == 7 ||
1582 (IsArmArch && Arch == "" && IsV7SubArch));
1583 addMultilibFlag(IsArmV7Mode, "-march=armv7-a", Flags);
1584 addMultilibFlag(IsThumbMode, "-mthumb", Flags);
1585
1586 if (AndroidArmMultilibs.select(D, Flags, Result.SelectedMultilibs))
1587 Result.Multilibs = AndroidArmMultilibs;
1588}
1589
1590static bool findMSP430Multilibs(const Driver &D,
1591 const llvm::Triple &TargetTriple,
1592 StringRef Path, const ArgList &Args,
1593 DetectedMultilibs &Result) {
1594 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1595 MultilibBuilder WithoutExceptions =
1596 MultilibBuilder("/430").flag("-exceptions", /*Disallow=*/true);
1597 MultilibBuilder WithExceptions =
1598 MultilibBuilder("/430/exceptions").flag("-exceptions");
1599
1600 // FIXME: when clang starts to support msp430x ISA additional logic
1601 // to select between multilib must be implemented
1602 // MultilibBuilder MSP430xMultilib = MultilibBuilder("/large");
1603
1604 Result.Multilibs.push_back(WithoutExceptions.makeMultilib());
1605 Result.Multilibs.push_back(WithExceptions.makeMultilib());
1606 Result.Multilibs.FilterOut(NonExistent);
1607
1608 Multilib::flags_list Flags;
1609 addMultilibFlag(Args.hasFlag(options::OPT_fexceptions,
1610 options::OPT_fno_exceptions, false),
1611 "-exceptions", Flags);
1612 if (Result.Multilibs.select(D, Flags, Result.SelectedMultilibs))
1613 return true;
1614
1615 return false;
1616}
1617
1618static void findCSKYMultilibs(const Driver &D, const llvm::Triple &TargetTriple,
1619 StringRef Path, const ArgList &Args,
1620 DetectedMultilibs &Result) {
1621 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1622
1623 tools::csky::FloatABI TheFloatABI = tools::csky::getCSKYFloatABI(D, Args);
1624 std::optional<llvm::StringRef> Res =
1625 tools::csky::getCSKYArchName(D, Args, TargetTriple);
1626
1627 if (!Res)
1628 return;
1629 auto ARCHName = *Res;
1630
1631 Multilib::flags_list Flags;
1632 addMultilibFlag(TheFloatABI == tools::csky::FloatABI::Hard, "-hard-fp",
1633 Flags);
1634 addMultilibFlag(TheFloatABI == tools::csky::FloatABI::SoftFP, "-soft-fp",
1635 Flags);
1636 addMultilibFlag(TheFloatABI == tools::csky::FloatABI::Soft, "-soft", Flags);
1637 addMultilibFlag(ARCHName == "ck801", "-march=ck801", Flags);
1638 addMultilibFlag(ARCHName == "ck802", "-march=ck802", Flags);
1639 addMultilibFlag(ARCHName == "ck803", "-march=ck803", Flags);
1640 addMultilibFlag(ARCHName == "ck804", "-march=ck804", Flags);
1641 addMultilibFlag(ARCHName == "ck805", "-march=ck805", Flags);
1642 addMultilibFlag(ARCHName == "ck807", "-march=ck807", Flags);
1643 addMultilibFlag(ARCHName == "ck810", "-march=ck810", Flags);
1644 addMultilibFlag(ARCHName == "ck810v", "-march=ck810v", Flags);
1645 addMultilibFlag(ARCHName == "ck860", "-march=ck860", Flags);
1646 addMultilibFlag(ARCHName == "ck860v", "-march=ck860v", Flags);
1647
1648 bool isBigEndian = false;
1649 if (Arg *A = Args.getLastArg(options::OPT_mlittle_endian,
1650 options::OPT_mbig_endian))
1651 isBigEndian = !A->getOption().matches(options::OPT_mlittle_endian);
1652 addMultilibFlag(isBigEndian, "-EB", Flags);
1653
1654 auto HardFloat = MultilibBuilder("/hard-fp").flag("-hard-fp");
1655 auto SoftFpFloat = MultilibBuilder("/soft-fp").flag("-soft-fp");
1656 auto SoftFloat = MultilibBuilder("").flag("-soft");
1657 auto Arch801 = MultilibBuilder("/ck801").flag("-march=ck801");
1658 auto Arch802 = MultilibBuilder("/ck802").flag("-march=ck802");
1659 auto Arch803 = MultilibBuilder("/ck803").flag("-march=ck803");
1660 // CK804 use the same library as CK803
1661 auto Arch804 = MultilibBuilder("/ck803").flag("-march=ck804");
1662 auto Arch805 = MultilibBuilder("/ck805").flag("-march=ck805");
1663 auto Arch807 = MultilibBuilder("/ck807").flag("-march=ck807");
1664 auto Arch810 = MultilibBuilder("").flag("-march=ck810");
1665 auto Arch810v = MultilibBuilder("/ck810v").flag("-march=ck810v");
1666 auto Arch860 = MultilibBuilder("/ck860").flag("-march=ck860");
1667 auto Arch860v = MultilibBuilder("/ck860v").flag("-march=ck860v");
1668 auto BigEndian = MultilibBuilder("/big").flag("-EB");
1669
1670 MultilibSet CSKYMultilibs =
1671 MultilibSetBuilder()
1672 .Maybe(BigEndian)
1673 .Either({Arch801, Arch802, Arch803, Arch804, Arch805, Arch807,
1674 Arch810, Arch810v, Arch860, Arch860v})
1675 .Either(HardFloat, SoftFpFloat, SoftFloat)
1676 .makeMultilibSet()
1677 .FilterOut(NonExistent);
1678
1679 if (CSKYMultilibs.select(D, Flags, Result.SelectedMultilibs))
1680 Result.Multilibs = CSKYMultilibs;
1681}
1682
1683/// Extend the multi-lib re-use selection mechanism for RISC-V.
1684/// This function will try to re-use multi-lib if they are compatible.
1685/// Definition of compatible:
1686/// - ABI must be the same.
1687/// - multi-lib is a subset of current arch, e.g. multi-lib=march=rv32im
1688/// is a subset of march=rv32imc.
1689/// - march that contains atomic extension can't reuse multi-lib that
1690/// doesn't have atomic, vice versa. e.g. multi-lib=march=rv32im and
1691/// march=rv32ima are not compatible, because software and hardware
1692/// atomic operation can't work together correctly.
1693static bool
1694selectRISCVMultilib(const Driver &D, const MultilibSet &RISCVMultilibSet,
1695 StringRef Arch, const Multilib::flags_list &Flags,
1696 llvm::SmallVectorImpl<Multilib> &SelectedMultilibs) {
1697 // Try to find the perfect matching multi-lib first.
1698 if (RISCVMultilibSet.select(D, Flags, SelectedMultilibs))
1699 return true;
1700
1701 Multilib::flags_list NewFlags;
1702 std::vector<MultilibBuilder> NewMultilibs;
1703
1704 llvm::Expected<std::unique_ptr<llvm::RISCVISAInfo>> ParseResult =
1705 llvm::RISCVISAInfo::parseArchString(
1706 Arch, /*EnableExperimentalExtension=*/true,
1707 /*ExperimentalExtensionVersionCheck=*/false);
1708 // Ignore any error here, we assume it will be handled in another place.
1709 if (llvm::errorToBool(ParseResult.takeError()))
1710 return false;
1711
1712 auto &ISAInfo = *ParseResult;
1713
1714 addMultilibFlag(ISAInfo->getXLen() == 32, "-m32", NewFlags);
1715 addMultilibFlag(ISAInfo->getXLen() == 64, "-m64", NewFlags);
1716
1717 // Collect all flags except march=*
1718 for (StringRef Flag : Flags) {
1719 if (Flag.starts_with("!march=") || Flag.starts_with("-march="))
1720 continue;
1721
1722 NewFlags.push_back(Flag.str());
1723 }
1724
1725 llvm::StringSet<> AllArchExts;
1726 // Reconstruct multi-lib list, and break march option into separated
1727 // extension. e.g. march=rv32im -> +i +m
1728 for (const auto &M : RISCVMultilibSet) {
1729 bool Skip = false;
1730
1731 MultilibBuilder NewMultilib =
1732 MultilibBuilder(M.gccSuffix(), M.osSuffix(), M.includeSuffix());
1733 for (StringRef Flag : M.flags()) {
1734 // Add back all flags except -march.
1735 if (!Flag.consume_front("-march=")) {
1736 NewMultilib.flag(Flag);
1737 continue;
1738 }
1739
1740 // Break down -march into individual extension.
1741 llvm::Expected<std::unique_ptr<llvm::RISCVISAInfo>> MLConfigParseResult =
1742 llvm::RISCVISAInfo::parseArchString(
1743 Flag, /*EnableExperimentalExtension=*/true,
1744 /*ExperimentalExtensionVersionCheck=*/false);
1745 // Ignore any error here, we assume it will handled in another place.
1746 if (llvm::errorToBool(MLConfigParseResult.takeError())) {
1747 // We might get a parsing error if rv32e in the list, we could just skip
1748 // that and process the rest of multi-lib configs.
1749 Skip = true;
1750 continue;
1751 }
1752 auto &MLConfigISAInfo = *MLConfigParseResult;
1753
1754 for (auto &MLConfigArchExt : MLConfigISAInfo->getExtensions()) {
1755 auto ExtName = MLConfigArchExt.first;
1756 NewMultilib.flag(Twine("-", ExtName).str());
1757
1758 if (AllArchExts.insert(ExtName).second) {
1759 addMultilibFlag(ISAInfo->hasExtension(ExtName),
1760 Twine("-", ExtName).str(), NewFlags);
1761 }
1762 }
1763
1764 // Check the XLEN explicitly.
1765 if (MLConfigISAInfo->getXLen() == 32) {
1766 NewMultilib.flag("-m32");
1767 NewMultilib.flag("-m64", /*Disallow*/ true);
1768 } else {
1769 NewMultilib.flag("-m32", /*Disallow*/ true);
1770 NewMultilib.flag("-m64");
1771 }
1772
1773 // Atomic extension must be explicitly checked, soft and hard atomic
1774 // operation never co-work correctly.
1775 if (!MLConfigISAInfo->hasExtension("a"))
1776 NewMultilib.flag("-a", /*Disallow*/ true);
1777 }
1778
1779 if (Skip)
1780 continue;
1781
1782 NewMultilibs.emplace_back(NewMultilib);
1783 }
1784
1785 // Build an internal used only multi-lib list, used for checking any
1786 // compatible multi-lib.
1787 MultilibSet NewRISCVMultilibs =
1788 MultilibSetBuilder().Either(NewMultilibs).makeMultilibSet();
1789
1790 if (NewRISCVMultilibs.select(D, NewFlags, SelectedMultilibs))
1791 for (const Multilib &NewSelectedM : SelectedMultilibs)
1792 for (const auto &M : RISCVMultilibSet)
1793 // Look up the corresponding multi-lib entry in original multi-lib set.
1794 if (M.gccSuffix() == NewSelectedM.gccSuffix())
1795 return true;
1796
1797 return false;
1798}
1799
1800static void findRISCVBareMetalMultilibs(const Driver &D,
1801 const llvm::Triple &TargetTriple,
1802 StringRef Path, const ArgList &Args,
1803 DetectedMultilibs &Result) {
1804 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1805 struct RiscvMultilib {
1806 StringRef march;
1807 StringRef mabi;
1808 };
1809 // currently only support the set of multilibs like riscv-gnu-toolchain does.
1810 // TODO: support MULTILIB_REUSE
1811 constexpr RiscvMultilib RISCVMultilibSet[] = {
1812 {"rv32i", "ilp32"}, {"rv32im", "ilp32"}, {"rv32iac", "ilp32"},
1813 {"rv32imac", "ilp32"}, {"rv32imafc", "ilp32f"}, {"rv64imac", "lp64"},
1814 {"rv64imafdc", "lp64d"}};
1815
1816 std::vector<MultilibBuilder> Ms;
1817 for (auto Element : RISCVMultilibSet) {
1818 // multilib path rule is ${march}/${mabi}
1819 Ms.emplace_back(
1820 MultilibBuilder(
1821 (Twine(Element.march) + "/" + Twine(Element.mabi)).str())
1822 .flag(Twine("-march=", Element.march).str())
1823 .flag(Twine("-mabi=", Element.mabi).str()));
1824 }
1825 MultilibSet RISCVMultilibs =
1826 MultilibSetBuilder()
1827 .Either(Ms)
1828 .makeMultilibSet()
1829 .FilterOut(NonExistent)
1830 .setFilePathsCallback([](const Multilib &M) {
1831 return std::vector<std::string>(
1832 {M.gccSuffix(),
1833 "/../../../../riscv64-unknown-elf/lib" + M.gccSuffix(),
1834 "/../../../../riscv32-unknown-elf/lib" + M.gccSuffix()});
1835 });
1836
1837 Multilib::flags_list Flags;
1838 llvm::StringSet<> Added_ABIs;
1839 StringRef ABIName = tools::riscv::getRISCVABI(Args, TargetTriple);
1840 std::string MArch = tools::riscv::getRISCVArch(Args, TargetTriple);
1841 for (auto Element : RISCVMultilibSet) {
1842 addMultilibFlag(MArch == Element.march,
1843 Twine("-march=", Element.march).str().c_str(), Flags);
1844 if (!Added_ABIs.count(Element.mabi)) {
1845 Added_ABIs.insert(Element.mabi);
1846 addMultilibFlag(ABIName == Element.mabi,
1847 Twine("-mabi=", Element.mabi).str().c_str(), Flags);
1848 }
1849 }
1850
1851 if (selectRISCVMultilib(D, RISCVMultilibs, MArch, Flags,
1852 Result.SelectedMultilibs))
1853 Result.Multilibs = RISCVMultilibs;
1854}
1855
1856static void findRISCVMultilibs(const Driver &D,
1857 const llvm::Triple &TargetTriple, StringRef Path,
1858 const ArgList &Args, DetectedMultilibs &Result) {
1859 if (TargetTriple.getOS() == llvm::Triple::UnknownOS)
1860 return findRISCVBareMetalMultilibs(D, TargetTriple, Path, Args, Result);
1861
1862 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1863 MultilibBuilder Ilp32 =
1864 MultilibBuilder("lib32/ilp32").flag("-m32").flag("-mabi=ilp32");
1865 MultilibBuilder Ilp32f =
1866 MultilibBuilder("lib32/ilp32f").flag("-m32").flag("-mabi=ilp32f");
1867 MultilibBuilder Ilp32d =
1868 MultilibBuilder("lib32/ilp32d").flag("-m32").flag("-mabi=ilp32d");
1869 MultilibBuilder Lp64 =
1870 MultilibBuilder("lib64/lp64").flag("-m64").flag("-mabi=lp64");
1871 MultilibBuilder Lp64f =
1872 MultilibBuilder("lib64/lp64f").flag("-m64").flag("-mabi=lp64f");
1873 MultilibBuilder Lp64d =
1874 MultilibBuilder("lib64/lp64d").flag("-m64").flag("-mabi=lp64d");
1875 MultilibSet RISCVMultilibs =
1876 MultilibSetBuilder()
1877 .Either({Ilp32, Ilp32f, Ilp32d, Lp64, Lp64f, Lp64d})
1878 .makeMultilibSet()
1879 .FilterOut(NonExistent);
1880
1881 Multilib::flags_list Flags;
1882 bool IsRV64 = TargetTriple.getArch() == llvm::Triple::riscv64;
1883 StringRef ABIName = tools::riscv::getRISCVABI(Args, TargetTriple);
1884
1885 addMultilibFlag(!IsRV64, "-m32", Flags);
1886 addMultilibFlag(IsRV64, "-m64", Flags);
1887 addMultilibFlag(ABIName == "ilp32", "-mabi=ilp32", Flags);
1888 addMultilibFlag(ABIName == "ilp32f", "-mabi=ilp32f", Flags);
1889 addMultilibFlag(ABIName == "ilp32d", "-mabi=ilp32d", Flags);
1890 addMultilibFlag(ABIName == "lp64", "-mabi=lp64", Flags);
1891 addMultilibFlag(ABIName == "lp64f", "-mabi=lp64f", Flags);
1892 addMultilibFlag(ABIName == "lp64d", "-mabi=lp64d", Flags);
1893
1894 if (RISCVMultilibs.select(D, Flags, Result.SelectedMultilibs))
1895 Result.Multilibs = RISCVMultilibs;
1896}
1897
1898static bool findBiarchMultilibs(const Driver &D,
1899 const llvm::Triple &TargetTriple,
1900 StringRef Path, const ArgList &Args,
1901 bool NeedsBiarchSuffix,
1902 DetectedMultilibs &Result) {
1903 MultilibBuilder DefaultBuilder;
1904
1905 // Some versions of SUSE and Fedora on ppc64 put 32-bit libs
1906 // in what would normally be GCCInstallPath and put the 64-bit
1907 // libs in a subdirectory named 64. The simple logic we follow is that
1908 // *if* there is a subdirectory of the right name with crtbegin.o in it,
1909 // we use that. If not, and if not a biarch triple alias, we look for
1910 // crtbegin.o without the subdirectory.
1911
1912 StringRef Suff64 = "/64";
1913 // Solaris uses platform-specific suffixes instead of /64.
1914 if (TargetTriple.isOSSolaris()) {
1915 switch (TargetTriple.getArch()) {
1916 case llvm::Triple::x86:
1917 case llvm::Triple::x86_64:
1918 Suff64 = "/amd64";
1919 break;
1920 case llvm::Triple::sparc:
1921 case llvm::Triple::sparcv9:
1922 Suff64 = "/sparcv9";
1923 break;
1924 default:
1925 break;
1926 }
1927 }
1928
1929 Multilib Alt64 = MultilibBuilder()
1930 .gccSuffix(Suff64)
1931 .includeSuffix(Suff64)
1932 .flag("-m32", /*Disallow=*/true)
1933 .flag("-m64")
1934 .flag("-mx32", /*Disallow=*/true)
1935 .makeMultilib();
1936 Multilib Alt32 = MultilibBuilder()
1937 .gccSuffix("/32")
1938 .includeSuffix("/32")
1939 .flag("-m32")
1940 .flag("-m64", /*Disallow=*/true)
1941 .flag("-mx32", /*Disallow=*/true)
1942 .makeMultilib();
1943 Multilib Altx32 = MultilibBuilder()
1944 .gccSuffix("/x32")
1945 .includeSuffix("/x32")
1946 .flag("-m32", /*Disallow=*/true)
1947 .flag("-m64", /*Disallow=*/true)
1948 .flag("-mx32")
1949 .makeMultilib();
1950 Multilib Alt32sparc = MultilibBuilder()
1951 .gccSuffix("/sparcv8plus")
1952 .includeSuffix("/sparcv8plus")
1953 .flag("-m32")
1954 .flag("-m64", /*Disallow=*/true)
1955 .makeMultilib();
1956
1957 // GCC toolchain for IAMCU doesn't have crtbegin.o, so look for libgcc.a.
1958 FilterNonExistent NonExistent(
1959 Path, TargetTriple.isOSIAMCU() ? "/libgcc.a" : "/crtbegin.o", D.getVFS());
1960
1961 // Determine default multilib from: 32, 64, x32
1962 // Also handle cases such as 64 on 32, 32 on 64, etc.
1963 enum { UNKNOWN, WANT32, WANT64, WANTX32 } Want = UNKNOWN;
1964 const bool IsX32 = TargetTriple.isX32();
1965 if (TargetTriple.isArch32Bit() && !NonExistent(Alt32))
1966 Want = WANT64;
1967 if (TargetTriple.isArch32Bit() && !NonExistent(Alt32sparc))
1968 Want = WANT64;
1969 else if (TargetTriple.isArch64Bit() && IsX32 && !NonExistent(Altx32))
1970 Want = WANT64;
1971 else if (TargetTriple.isArch64Bit() && !IsX32 && !NonExistent(Alt64))
1972 Want = WANT32;
1973 else if (TargetTriple.isArch64Bit() && !NonExistent(Alt32sparc))
1974 Want = WANT64;
1975 else {
1976 if (TargetTriple.isArch32Bit())
1977 Want = NeedsBiarchSuffix ? WANT64 : WANT32;
1978 else if (IsX32)
1979 Want = NeedsBiarchSuffix ? WANT64 : WANTX32;
1980 else
1981 Want = NeedsBiarchSuffix ? WANT32 : WANT64;
1982 }
1983
1984 if (Want == WANT32)
1985 DefaultBuilder.flag("-m32")
1986 .flag("-m64", /*Disallow=*/true)
1987 .flag("-mx32", /*Disallow=*/true);
1988 else if (Want == WANT64)
1989 DefaultBuilder.flag("-m32", /*Disallow=*/true)
1990 .flag("-m64")
1991 .flag("-mx32", /*Disallow=*/true);
1992 else if (Want == WANTX32)
1993 DefaultBuilder.flag("-m32", /*Disallow=*/true)
1994 .flag("-m64", /*Disallow=*/true)
1995 .flag("-mx32");
1996 else
1997 return false;
1998
1999 Multilib Default = DefaultBuilder.makeMultilib();
2000
2001 Result.Multilibs.push_back(Default);
2002 Result.Multilibs.push_back(Alt64);
2003 Result.Multilibs.push_back(Alt32);
2004 Result.Multilibs.push_back(Altx32);
2005 Result.Multilibs.push_back(Alt32sparc);
2006
2007 Result.Multilibs.FilterOut(NonExistent);
2008
2009 Multilib::flags_list Flags;
2010 addMultilibFlag(TargetTriple.isArch64Bit() && !IsX32, "-m64", Flags);
2011 addMultilibFlag(TargetTriple.isArch32Bit(), "-m32", Flags);
2012 addMultilibFlag(TargetTriple.isArch64Bit() && IsX32, "-mx32", Flags);
2013
2014 if (!Result.Multilibs.select(D, Flags, Result.SelectedMultilibs))
2015 return false;
2016
2017 if (Result.SelectedMultilibs.back() == Alt64 ||
2018 Result.SelectedMultilibs.back() == Alt32 ||
2019 Result.SelectedMultilibs.back() == Altx32 ||
2020 Result.SelectedMultilibs.back() == Alt32sparc)
2021 Result.BiarchSibling = Default;
2022
2023 return true;
2024}
2025
2026/// Generic_GCC - A tool chain using the 'gcc' command to perform
2027/// all subcommands; this relies on gcc translating the majority of
2028/// command line options.
2029
2030/// Less-than for GCCVersion, implementing a Strict Weak Ordering.
2031bool Generic_GCC::GCCVersion::isOlderThan(int RHSMajor, int RHSMinor,
2032 int RHSPatch,
2033 StringRef RHSPatchSuffix) const {
2034 if (Major != RHSMajor)
2035 return Major < RHSMajor;
2036 if (Minor != RHSMinor) {
2037 // Note that versions without a specified minor sort higher than those with
2038 // a minor.
2039 if (RHSMinor == -1)
2040 return true;
2041 if (Minor == -1)
2042 return false;
2043 return Minor < RHSMinor;
2044 }
2045 if (Patch != RHSPatch) {
2046 // Note that versions without a specified patch sort higher than those with
2047 // a patch.
2048 if (RHSPatch == -1)
2049 return true;
2050 if (Patch == -1)
2051 return false;
2052
2053 // Otherwise just sort on the patch itself.
2054 return Patch < RHSPatch;
2055 }
2056 if (PatchSuffix != RHSPatchSuffix) {
2057 // Sort empty suffixes higher.
2058 if (RHSPatchSuffix.empty())
2059 return true;
2060 if (PatchSuffix.empty())
2061 return false;
2062
2063 // Provide a lexicographic sort to make this a total ordering.
2064 return PatchSuffix < RHSPatchSuffix;
2065 }
2066
2067 // The versions are equal.
2068 return false;
2069}
2070
2071/// Parse a GCCVersion object out of a string of text.
2072///
2073/// This is the primary means of forming GCCVersion objects.
2074/*static*/
2075Generic_GCC::GCCVersion Generic_GCC::GCCVersion::Parse(StringRef VersionText) {
2076 const GCCVersion BadVersion = {VersionText.str(), -1, -1, -1, "", "", ""};
2077 std::pair<StringRef, StringRef> First = VersionText.split('.');
2078 std::pair<StringRef, StringRef> Second = First.second.split('.');
2079
2080 StringRef MajorStr = First.first;
2081 StringRef MinorStr = Second.first;
2082 StringRef PatchStr = Second.second;
2083
2084 GCCVersion GoodVersion = {VersionText.str(), -1, -1, -1, "", "", ""};
2085
2086 // Parse version number strings such as:
2087 // 5
2088 // 4.4
2089 // 4.4-patched
2090 // 4.4.0
2091 // 4.4.x
2092 // 4.4.2-rc4
2093 // 4.4.x-patched
2094 // 10-win32
2095 // Split on '.', handle 1, 2 or 3 such segments. Each segment must contain
2096 // purely a number, except for the last one, where a non-number suffix
2097 // is stored in PatchSuffix. The third segment is allowed to not contain
2098 // a number at all.
2099
2100 auto TryParseLastNumber = [&](StringRef Segment, int &Number,
2101 std::string &OutStr) -> bool {
2102 // Look for a number prefix and parse that, and split out any trailing
2103 // string into GoodVersion.PatchSuffix.
2104
2105 if (size_t EndNumber = Segment.find_first_not_of("0123456789")) {
2106 StringRef NumberStr = Segment.slice(0, EndNumber);
2107 if (NumberStr.getAsInteger(10, Number) || Number < 0)
2108 return false;
2109 OutStr = NumberStr;
2110 GoodVersion.PatchSuffix = Segment.substr(EndNumber);
2111 return true;
2112 }
2113 return false;
2114 };
2115 auto TryParseNumber = [](StringRef Segment, int &Number) -> bool {
2116 if (Segment.getAsInteger(10, Number) || Number < 0)
2117 return false;
2118 return true;
2119 };
2120
2121 if (MinorStr.empty()) {
2122 // If no minor string, major is the last segment
2123 if (!TryParseLastNumber(MajorStr, GoodVersion.Major, GoodVersion.MajorStr))
2124 return BadVersion;
2125 return GoodVersion;
2126 }
2127
2128 if (!TryParseNumber(MajorStr, GoodVersion.Major))
2129 return BadVersion;
2130 GoodVersion.MajorStr = MajorStr;
2131
2132 if (PatchStr.empty()) {
2133 // If no patch string, minor is the last segment
2134 if (!TryParseLastNumber(MinorStr, GoodVersion.Minor, GoodVersion.MinorStr))
2135 return BadVersion;
2136 return GoodVersion;
2137 }
2138
2139 if (!TryParseNumber(MinorStr, GoodVersion.Minor))
2140 return BadVersion;
2141 GoodVersion.MinorStr = MinorStr;
2142
2143 // For the last segment, tolerate a missing number.
2144 std::string DummyStr;
2145 TryParseLastNumber(PatchStr, GoodVersion.Patch, DummyStr);
2146 return GoodVersion;
2147}
2148
2149static llvm::StringRef getGCCToolchainDir(const ArgList &Args,
2150 llvm::StringRef SysRoot) {
2151 const Arg *A = Args.getLastArg(clang::driver::options::OPT_gcc_toolchain);
2152 if (A)
2153 return A->getValue();
2154
2155 // If we have a SysRoot, ignore GCC_INSTALL_PREFIX.
2156 // GCC_INSTALL_PREFIX specifies the gcc installation for the default
2157 // sysroot and is likely not valid with a different sysroot.
2158 if (!SysRoot.empty())
2159 return "";
2160
2161 return GCC_INSTALL_PREFIX;
2162}
2163
2164/// Initialize a GCCInstallationDetector from the driver.
2165///
2166/// This performs all of the autodetection and sets up the various paths.
2167/// Once constructed, a GCCInstallationDetector is essentially immutable.
2168///
2169/// FIXME: We shouldn't need an explicit TargetTriple parameter here, and
2170/// should instead pull the target out of the driver. This is currently
2171/// necessary because the driver doesn't store the final version of the target
2172/// triple.
2173void Generic_GCC::GCCInstallationDetector::init(
2174 const llvm::Triple &TargetTriple, const ArgList &Args) {
2175 llvm::Triple BiarchVariantTriple = TargetTriple.isArch32Bit()
2176 ? TargetTriple.get64BitArchVariant()
2177 : TargetTriple.get32BitArchVariant();
2178 // The library directories which may contain GCC installations.
2179 SmallVector<StringRef, 4> CandidateLibDirs, CandidateBiarchLibDirs;
2180 // The compatible GCC triples for this particular architecture.
2181 SmallVector<StringRef, 16> CandidateTripleAliases;
2182 SmallVector<StringRef, 16> CandidateBiarchTripleAliases;
2183 // Add some triples that we want to check first.
2184 CandidateTripleAliases.push_back(TargetTriple.str());
2185 std::string TripleNoVendor, BiarchTripleNoVendor;
2186 if (TargetTriple.getVendor() == llvm::Triple::UnknownVendor) {
2187 StringRef OSEnv = TargetTriple.getOSAndEnvironmentName();
2188 if (TargetTriple.getEnvironment() == llvm::Triple::GNUX32)
2189 OSEnv = "linux-gnu";
2190 TripleNoVendor = (TargetTriple.getArchName().str() + '-' + OSEnv).str();
2191 CandidateTripleAliases.push_back(TripleNoVendor);
2192 if (BiarchVariantTriple.getArch() != llvm::Triple::UnknownArch) {
2193 BiarchTripleNoVendor =
2194 (BiarchVariantTriple.getArchName().str() + '-' + OSEnv).str();
2195 CandidateBiarchTripleAliases.push_back(BiarchTripleNoVendor);
2196 }
2197 }
2198
2199 CollectLibDirsAndTriples(TargetTriple, BiarchVariantTriple, CandidateLibDirs,
2200 CandidateTripleAliases, CandidateBiarchLibDirs,
2201 CandidateBiarchTripleAliases);
2202
2203 // If --gcc-install-dir= is specified, skip filesystem detection.
2204 if (const Arg *A =
2205 Args.getLastArg(clang::driver::options::OPT_gcc_install_dir_EQ);
2206 A && A->getValue()[0]) {
2207 StringRef InstallDir = A->getValue();
2208 if (!ScanGCCForMultilibs(TargetTriple, Args, InstallDir, false)) {
2209 D.Diag(diag::err_drv_invalid_gcc_install_dir) << InstallDir;
2210 } else {
2211 (void)InstallDir.consume_back("/");
2212 StringRef VersionText = llvm::sys::path::filename(InstallDir);
2213 StringRef TripleText =
2214 llvm::sys::path::filename(llvm::sys::path::parent_path(InstallDir));
2215
2216 Version = GCCVersion::Parse(VersionText);
2217 GCCTriple.setTriple(TripleText);
2218 GCCInstallPath = std::string(InstallDir);
2219 GCCParentLibPath = GCCInstallPath + "/../../..";
2220 IsValid = true;
2221 }
2222 return;
2223 }
2224
2225 // If --gcc-triple is specified use this instead of trying to
2226 // auto-detect a triple.
2227 if (const Arg *A =
2228 Args.getLastArg(clang::driver::options::OPT_gcc_triple_EQ)) {
2229 StringRef GCCTriple = A->getValue();
2230 CandidateTripleAliases.clear();
2231 CandidateTripleAliases.push_back(GCCTriple);
2232 }
2233
2234 // Compute the set of prefixes for our search.
2235 SmallVector<std::string, 8> Prefixes;
2236 StringRef GCCToolchainDir = getGCCToolchainDir(Args, D.SysRoot);
2237 if (GCCToolchainDir != "") {
2238 if (GCCToolchainDir.back() == '/')
2239 GCCToolchainDir = GCCToolchainDir.drop_back(); // remove the /
2240
2241 Prefixes.push_back(std::string(GCCToolchainDir));
2242 } else {
2243 // If we have a SysRoot, try that first.
2244 if (!D.SysRoot.empty()) {
2245 Prefixes.push_back(D.SysRoot);
2246 AddDefaultGCCPrefixes(TargetTriple, Prefixes, D.SysRoot);
2247 }
2248
2249 // Then look for gcc installed alongside clang.
2250 Prefixes.push_back(D.Dir + "/..");
2251
2252 // Next, look for prefix(es) that correspond to distribution-supplied gcc
2253 // installations.
2254 if (D.SysRoot.empty()) {
2255 // Typically /usr.
2256 AddDefaultGCCPrefixes(TargetTriple, Prefixes, D.SysRoot);
2257 }
2258
2259 // Try to respect gcc-config on Gentoo if --gcc-toolchain is not provided.
2260 // This avoids accidentally enforcing the system GCC version when using a
2261 // custom toolchain.
2262 SmallVector<StringRef, 16> GentooTestTriples;
2263 // Try to match an exact triple as target triple first.
2264 // e.g. crossdev -S x86_64-gentoo-linux-gnu will install gcc libs for
2265 // x86_64-gentoo-linux-gnu. But "clang -target x86_64-gentoo-linux-gnu"
2266 // may pick the libraries for x86_64-pc-linux-gnu even when exact matching
2267 // triple x86_64-gentoo-linux-gnu is present.
2268 GentooTestTriples.push_back(TargetTriple.str());
2269 GentooTestTriples.append(CandidateTripleAliases.begin(),
2270 CandidateTripleAliases.end());
2271 if (ScanGentooConfigs(TargetTriple, Args, GentooTestTriples,
2272 CandidateBiarchTripleAliases))
2273 return;
2274 }
2275
2276 // Loop over the various components which exist and select the best GCC
2277 // installation available. GCC installs are ranked by version number.
2278 const GCCVersion VersionZero = GCCVersion::Parse("0.0.0");
2279 Version = VersionZero;
2280 for (const std::string &Prefix : Prefixes) {
2281 auto &VFS = D.getVFS();
2282 if (!VFS.exists(Prefix))
2283 continue;
2284 for (StringRef Suffix : CandidateLibDirs) {
2285 const std::string LibDir = concat(Prefix, Suffix);
2286 if (!VFS.exists(LibDir))
2287 continue;
2288 // Maybe filter out <libdir>/gcc and <libdir>/gcc-cross.
2289 bool GCCDirExists = VFS.exists(LibDir + "/gcc");
2290 bool GCCCrossDirExists = VFS.exists(LibDir + "/gcc-cross");
2291 for (StringRef Candidate : CandidateTripleAliases)
2292 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate, false,
2293 GCCDirExists, GCCCrossDirExists);
2294 }
2295 for (StringRef Suffix : CandidateBiarchLibDirs) {
2296 const std::string LibDir = Prefix + Suffix.str();
2297 if (!VFS.exists(LibDir))
2298 continue;
2299 bool GCCDirExists = VFS.exists(LibDir + "/gcc");
2300 bool GCCCrossDirExists = VFS.exists(LibDir + "/gcc-cross");
2301 for (StringRef Candidate : CandidateBiarchTripleAliases)
2302 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate, true,
2303 GCCDirExists, GCCCrossDirExists);
2304 }
2305
2306 // Skip other prefixes once a GCC installation is found.
2307 if (Version > VersionZero)
2308 break;
2309 }
2310}
2311
2312void Generic_GCC::GCCInstallationDetector::print(raw_ostream &OS) const {
2313 for (const auto &InstallPath : CandidateGCCInstallPaths)
2314 OS << "Found candidate GCC installation: " << InstallPath << "\n";
2315
2316 if (!GCCInstallPath.empty())
2317 OS << "Selected GCC installation: " << GCCInstallPath << "\n";
2318
2319 for (const auto &Multilib : Multilibs)
2320 OS << "Candidate multilib: " << Multilib << "\n";
2321
2322 if (Multilibs.size() != 0 || !SelectedMultilib.isDefault())
2323 OS << "Selected multilib: " << SelectedMultilib << "\n";
2324}
2325
2326bool Generic_GCC::GCCInstallationDetector::getBiarchSibling(Multilib &M) const {
2327 if (BiarchSibling) {
2328 M = *BiarchSibling;
2329 return true;
2330 }
2331 return false;
2332}
2333
2334void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
2335 const llvm::Triple &TargetTriple, SmallVectorImpl<std::string> &Prefixes,
2336 StringRef SysRoot) {
2337
2338 if (TargetTriple.isOSHaiku()) {
2339 Prefixes.push_back(concat(SysRoot, "/boot/system/develop/tools"));
2340 return;
2341 }
2342
2343 if (TargetTriple.isOSSolaris()) {
2344 // Solaris is a special case.
2345 // The GCC installation is under
2346 // /usr/gcc/<major>.<minor>/lib/gcc/<triple>/<major>.<minor>.<patch>/
2347 // so we need to find those /usr/gcc/*/lib/gcc libdirs and go with
2348 // /usr/gcc/<version> as a prefix.
2349
2350 SmallVector<std::pair<GCCVersion, std::string>, 8> SolarisPrefixes;
2351 std::string PrefixDir = concat(SysRoot, "/usr/gcc");
2352 std::error_code EC;
2353 for (llvm::vfs::directory_iterator LI = D.getVFS().dir_begin(PrefixDir, EC),
2354 LE;
2355 !EC && LI != LE; LI = LI.increment(EC)) {
2356 StringRef VersionText = llvm::sys::path::filename(LI->path());
2357 GCCVersion CandidateVersion = GCCVersion::Parse(VersionText);
2358
2359 // Filter out obviously bad entries.
2360 if (CandidateVersion.Major == -1 || CandidateVersion.isOlderThan(4, 1, 1))
2361 continue;
2362
2363 std::string CandidatePrefix = PrefixDir + "/" + VersionText.str();
2364 std::string CandidateLibPath = CandidatePrefix + "/lib/gcc";
2365 if (!D.getVFS().exists(CandidateLibPath))
2366 continue;
2367
2368 SolarisPrefixes.emplace_back(
2369 std::make_pair(CandidateVersion, CandidatePrefix));
2370 }
2371 // Sort in reverse order so GCCInstallationDetector::init picks the latest.
2372 std::sort(SolarisPrefixes.rbegin(), SolarisPrefixes.rend());
2373 for (auto p : SolarisPrefixes)
2374 Prefixes.emplace_back(p.second);
2375 return;
2376 }
2377
2378 // For Linux, if --sysroot is not specified, look for RHEL/CentOS devtoolsets
2379 // and gcc-toolsets.
2380 if (SysRoot.empty() && TargetTriple.getOS() == llvm::Triple::Linux &&
2381 D.getVFS().exists("/opt/rh")) {
2382 // TODO: We may want to remove this, since the functionality
2383 // can be achieved using config files.
2384 Prefixes.push_back("/opt/rh/gcc-toolset-12/root/usr");
2385 Prefixes.push_back("/opt/rh/gcc-toolset-11/root/usr");
2386 Prefixes.push_back("/opt/rh/gcc-toolset-10/root/usr");
2387 Prefixes.push_back("/opt/rh/devtoolset-12/root/usr");
2388 Prefixes.push_back("/opt/rh/devtoolset-11/root/usr");
2389 Prefixes.push_back("/opt/rh/devtoolset-10/root/usr");
2390 Prefixes.push_back("/opt/rh/devtoolset-9/root/usr");
2391 Prefixes.push_back("/opt/rh/devtoolset-8/root/usr");
2392 Prefixes.push_back("/opt/rh/devtoolset-7/root/usr");
2393 Prefixes.push_back("/opt/rh/devtoolset-6/root/usr");
2394 Prefixes.push_back("/opt/rh/devtoolset-4/root/usr");
2395 Prefixes.push_back("/opt/rh/devtoolset-3/root/usr");
2396 Prefixes.push_back("/opt/rh/devtoolset-2/root/usr");
2397 }
2398
2399 // Fall back to /usr which is used by most non-Solaris systems.
2400 Prefixes.push_back(concat(SysRoot, "/usr"));
2401}
2402
2403/*static*/ void Generic_GCC::GCCInstallationDetector::CollectLibDirsAndTriples(
2404 const llvm::Triple &TargetTriple, const llvm::Triple &BiarchTriple,
2405 SmallVectorImpl<StringRef> &LibDirs,
2406 SmallVectorImpl<StringRef> &TripleAliases,
2407 SmallVectorImpl<StringRef> &BiarchLibDirs,
2408 SmallVectorImpl<StringRef> &BiarchTripleAliases) {
2409 // Declare a bunch of static data sets that we'll select between below. These
2410 // are specifically designed to always refer to string literals to avoid any
2411 // lifetime or initialization issues.
2412 //
2413 // The *Triples variables hard code some triples so that, for example,
2414 // --target=aarch64 (incomplete triple) can detect lib/aarch64-linux-gnu.
2415 // They are not needed when the user has correct LLVM_DEFAULT_TARGET_TRIPLE
2416 // and always uses the full --target (e.g. --target=aarch64-linux-gnu). The
2417 // lists should shrink over time. Please don't add more elements to *Triples.
2418 static const char *const AArch64LibDirs[] = {"/lib64", "/lib"};
2419 static const char *const AArch64Triples[] = {
2420 "aarch64-none-linux-gnu", "aarch64-redhat-linux", "aarch64-suse-linux"};
2421 static const char *const AArch64beLibDirs[] = {"/lib"};
2422 static const char *const AArch64beTriples[] = {"aarch64_be-none-linux-gnu"};
2423
2424 static const char *const ARMLibDirs[] = {"/lib"};
2425 static const char *const ARMTriples[] = {"arm-linux-gnueabi"};
2426 static const char *const ARMHFTriples[] = {"arm-linux-gnueabihf",
2427 "armv7hl-redhat-linux-gnueabi",
2428 "armv6hl-suse-linux-gnueabi",
2429 "armv7hl-suse-linux-gnueabi"};
2430 static const char *const ARMebLibDirs[] = {"/lib"};
2431 static const char *const ARMebTriples[] = {"armeb-linux-gnueabi"};
2432 static const char *const ARMebHFTriples[] = {
2433 "armeb-linux-gnueabihf", "armebv7hl-redhat-linux-gnueabi"};
2434
2435 static const char *const AVRLibDirs[] = {"/lib"};
2436 static const char *const AVRTriples[] = {"avr"};
2437
2438 static const char *const CSKYLibDirs[] = {"/lib"};
2439 static const char *const CSKYTriples[] = {
2440 "csky-linux-gnuabiv2", "csky-linux-uclibcabiv2", "csky-elf-noneabiv2"};
2441
2442 static const char *const X86_64LibDirs[] = {"/lib64", "/lib"};
2443 static const char *const X86_64Triples[] = {
2444 "x86_64-linux-gnu", "x86_64-unknown-linux-gnu",
2445 "x86_64-pc-linux-gnu", "x86_64-redhat-linux6E",
2446 "x86_64-redhat-linux", "x86_64-suse-linux",
2447 "x86_64-manbo-linux-gnu", "x86_64-slackware-linux",
2448 "x86_64-unknown-linux", "x86_64-amazon-linux"};
2449 static const char *const X32Triples[] = {"x86_64-linux-gnux32",
2450 "x86_64-pc-linux-gnux32"};
2451 static const char *const X32LibDirs[] = {"/libx32", "/lib"};
2452 static const char *const X86LibDirs[] = {"/lib32", "/lib"};
2453 static const char *const X86Triples[] = {
2454 "i586-linux-gnu", "i686-linux-gnu", "i686-pc-linux-gnu",
2455 "i386-redhat-linux6E", "i686-redhat-linux", "i386-redhat-linux",
2456 "i586-suse-linux", "i686-montavista-linux",
2457 };
2458
2459 static const char *const LoongArch64LibDirs[] = {"/lib64", "/lib"};
2460 static const char *const LoongArch64Triples[] = {
2461 "loongarch64-linux-gnu", "loongarch64-unknown-linux-gnu"};
2462
2463 static const char *const M68kLibDirs[] = {"/lib"};
2464 static const char *const M68kTriples[] = {"m68k-unknown-linux-gnu",
2465 "m68k-suse-linux"};
2466
2467 static const char *const MIPSLibDirs[] = {"/libo32", "/lib"};
2468 static const char *const MIPSTriples[] = {
2469 "mips-linux-gnu", "mips-mti-linux", "mips-mti-linux-gnu",
2470 "mips-img-linux-gnu", "mipsisa32r6-linux-gnu"};
2471 static const char *const MIPSELLibDirs[] = {"/libo32", "/lib"};
2472 static const char *const MIPSELTriples[] = {"mipsel-linux-gnu",
2473 "mips-img-linux-gnu"};
2474
2475 static const char *const MIPS64LibDirs[] = {"/lib64", "/lib"};
2476 static const char *const MIPS64Triples[] = {
2477 "mips-mti-linux-gnu", "mips-img-linux-gnu", "mips64-linux-gnuabi64",
2478 "mipsisa64r6-linux-gnu", "mipsisa64r6-linux-gnuabi64"};
2479 static const char *const MIPS64ELLibDirs[] = {"/lib64", "/lib"};
2480 static const char *const MIPS64ELTriples[] = {
2481 "mips-mti-linux-gnu", "mips-img-linux-gnu", "mips64el-linux-gnuabi64",
2482 "mipsisa64r6el-linux-gnu", "mipsisa64r6el-linux-gnuabi64"};
2483
2484 static const char *const MIPSN32LibDirs[] = {"/lib32"};
2485 static const char *const MIPSN32Triples[] = {"mips64-linux-gnuabin32",
2486 "mipsisa64r6-linux-gnuabin32"};
2487 static const char *const MIPSN32ELLibDirs[] = {"/lib32"};
2488 static const char *const MIPSN32ELTriples[] = {
2489 "mips64el-linux-gnuabin32", "mipsisa64r6el-linux-gnuabin32"};
2490
2491 static const char *const MSP430LibDirs[] = {"/lib"};
2492 static const char *const MSP430Triples[] = {"msp430-elf"};
2493
2494 static const char *const PPCLibDirs[] = {"/lib32", "/lib"};
2495 static const char *const PPCTriples[] = {
2496 "powerpc-unknown-linux-gnu",
2497 // On 32-bit PowerPC systems running SUSE Linux, gcc is configured as a
2498 // 64-bit compiler which defaults to "-m32", hence "powerpc64-suse-linux".
2499 "powerpc64-suse-linux", "powerpc-montavista-linuxspe"};
2500 static const char *const PPCLELibDirs[] = {"/lib32", "/lib"};
2501 static const char *const PPCLETriples[] = {"powerpcle-unknown-linux-gnu",
2502 "powerpcle-linux-musl"};
2503
2504 static const char *const PPC64LibDirs[] = {"/lib64", "/lib"};
2505 static const char *const PPC64Triples[] = {"powerpc64-unknown-linux-gnu",
2506 "powerpc64-suse-linux",
2507 "ppc64-redhat-linux"};
2508 static const char *const PPC64LELibDirs[] = {"/lib64", "/lib"};
2509 static const char *const PPC64LETriples[] = {
2510 "powerpc64le-unknown-linux-gnu", "powerpc64le-none-linux-gnu",
2511 "powerpc64le-suse-linux", "ppc64le-redhat-linux"};
2512
2513 static const char *const RISCV32LibDirs[] = {"/lib32", "/lib"};
2514 static const char *const RISCV32Triples[] = {"riscv32-unknown-linux-gnu",
2515 "riscv32-unknown-elf"};
2516 static const char *const RISCV64LibDirs[] = {"/lib64", "/lib"};
2517 static const char *const RISCV64Triples[] = {"riscv64-unknown-linux-gnu",
2518 "riscv64-unknown-elf"};
2519
2520 static const char *const SPARCv8LibDirs[] = {"/lib32", "/lib"};
2521 static const char *const SPARCv8Triples[] = {"sparc-linux-gnu",
2522 "sparcv8-linux-gnu"};
2523 static const char *const SPARCv9LibDirs[] = {"/lib64", "/lib"};
2524 static const char *const SPARCv9Triples[] = {"sparc64-linux-gnu",
2525 "sparcv9-linux-gnu"};
2526
2527 static const char *const SystemZLibDirs[] = {"/lib64", "/lib"};
2528 static const char *const SystemZTriples[] = {
2529 "s390x-unknown-linux-gnu", "s390x-ibm-linux-gnu", "s390x-suse-linux",
2530 "s390x-redhat-linux"};
2531
2532 using std::begin;
2533 using std::end;
2534
2535 if (TargetTriple.isOSSolaris()) {
2536 static const char *const SolarisLibDirs[] = {"/lib"};
2537 static const char *const SolarisSparcV8Triples[] = {
2538 "sparc-sun-solaris2.11"};
2539 static const char *const SolarisSparcV9Triples[] = {
2540 "sparcv9-sun-solaris2.11"};
2541 static const char *const SolarisX86Triples[] = {"i386-pc-solaris2.11"};
2542 static const char *const SolarisX86_64Triples[] = {"x86_64-pc-solaris2.11"};
2543 LibDirs.append(begin(SolarisLibDirs), end(SolarisLibDirs));
2544 BiarchLibDirs.append(begin(SolarisLibDirs), end(SolarisLibDirs));
2545 switch (TargetTriple.getArch()) {
2546 case llvm::Triple::x86:
2547 TripleAliases.append(begin(SolarisX86Triples), end(SolarisX86Triples));
2548 BiarchTripleAliases.append(begin(SolarisX86_64Triples),
2549 end(SolarisX86_64Triples));
2550 break;
2551 case llvm::Triple::x86_64:
2552 TripleAliases.append(begin(SolarisX86_64Triples),
2553 end(SolarisX86_64Triples));
2554 BiarchTripleAliases.append(begin(SolarisX86Triples),
2555 end(SolarisX86Triples));
2556 break;
2557 case llvm::Triple::sparc:
2558 TripleAliases.append(begin(SolarisSparcV8Triples),
2559 end(SolarisSparcV8Triples));
2560 BiarchTripleAliases.append(begin(SolarisSparcV9Triples),
2561 end(SolarisSparcV9Triples));
2562 break;
2563 case llvm::Triple::sparcv9:
2564 TripleAliases.append(begin(SolarisSparcV9Triples),
2565 end(SolarisSparcV9Triples));
2566 BiarchTripleAliases.append(begin(SolarisSparcV8Triples),
2567 end(SolarisSparcV8Triples));
2568 break;
2569 default:
2570 break;
2571 }
2572 return;
2573 }
2574
2575 // Android targets should not use GNU/Linux tools or libraries.
2576 if (TargetTriple.isAndroid()) {
2577 static const char *const AArch64AndroidTriples[] = {
2578 "aarch64-linux-android"};
2579 static const char *const ARMAndroidTriples[] = {"arm-linux-androideabi"};
2580 static const char *const X86AndroidTriples[] = {"i686-linux-android"};
2581 static const char *const X86_64AndroidTriples[] = {"x86_64-linux-android"};
2582
2583 switch (TargetTriple.getArch()) {
2584 case llvm::Triple::aarch64:
2585 LibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
2586 TripleAliases.append(begin(AArch64AndroidTriples),
2587 end(AArch64AndroidTriples));
2588 break;
2589 case llvm::Triple::arm:
2590 case llvm::Triple::thumb:
2591 LibDirs.append(begin(ARMLibDirs), end(ARMLibDirs));
2592 TripleAliases.append(begin(ARMAndroidTriples), end(ARMAndroidTriples));
2593 break;
2594 case llvm::Triple::x86_64:
2595 LibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2596 TripleAliases.append(begin(X86_64AndroidTriples),
2597 end(X86_64AndroidTriples));
2598 BiarchLibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2599 BiarchTripleAliases.append(begin(X86AndroidTriples),
2600 end(X86AndroidTriples));
2601 break;
2602 case llvm::Triple::x86:
2603 LibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2604 TripleAliases.append(begin(X86AndroidTriples), end(X86AndroidTriples));
2605 BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2606 BiarchTripleAliases.append(begin(X86_64AndroidTriples),
2607 end(X86_64AndroidTriples));
2608 break;
2609 default:
2610 break;
2611 }
2612
2613 return;
2614 }
2615
2616 if (TargetTriple.isOSHurd()) {
2617 switch (TargetTriple.getArch()) {
2618 case llvm::Triple::x86_64:
2619 LibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2620 TripleAliases.push_back("x86_64-gnu");
2621 break;
2622 case llvm::Triple::x86:
2623 LibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2624 TripleAliases.push_back("i686-gnu");
2625 break;
2626 default:
2627 break;
2628 }
2629
2630 return;
2631 }
2632
2633 switch (TargetTriple.getArch()) {
2634 case llvm::Triple::aarch64:
2635 LibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
2636 TripleAliases.append(begin(AArch64Triples), end(AArch64Triples));
2637 BiarchLibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
2638 BiarchTripleAliases.append(begin(AArch64Triples), end(AArch64Triples));
2639 break;
2640 case llvm::Triple::aarch64_be:
2641 LibDirs.append(begin(AArch64beLibDirs), end(AArch64beLibDirs));
2642 TripleAliases.append(begin(AArch64beTriples), end(AArch64beTriples));
2643 BiarchLibDirs.append(begin(AArch64beLibDirs), end(AArch64beLibDirs));
2644 BiarchTripleAliases.append(begin(AArch64beTriples), end(AArch64beTriples));
2645 break;
2646 case llvm::Triple::arm:
2647 case llvm::Triple::thumb:
2648 LibDirs.append(begin(ARMLibDirs), end(ARMLibDirs));
2649 if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF ||
2650 TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHFT64 ||
2651 TargetTriple.getEnvironment() == llvm::Triple::MuslEABIHF ||
2652 TargetTriple.getEnvironment() == llvm::Triple::EABIHF) {
2653 TripleAliases.append(begin(ARMHFTriples), end(ARMHFTriples));
2654 } else {
2655 TripleAliases.append(begin(ARMTriples), end(ARMTriples));
2656 }
2657 break;
2658 case llvm::Triple::armeb:
2659 case llvm::Triple::thumbeb:
2660 LibDirs.append(begin(ARMebLibDirs), end(ARMebLibDirs));
2661 if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF ||
2662 TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHFT64 ||
2663 TargetTriple.getEnvironment() == llvm::Triple::MuslEABIHF ||
2664 TargetTriple.getEnvironment() == llvm::Triple::EABIHF) {
2665 TripleAliases.append(begin(ARMebHFTriples), end(ARMebHFTriples));
2666 } else {
2667 TripleAliases.append(begin(ARMebTriples), end(ARMebTriples));
2668 }
2669 break;
2670 case llvm::Triple::avr:
2671 LibDirs.append(begin(AVRLibDirs), end(AVRLibDirs));
2672 TripleAliases.append(begin(AVRTriples), end(AVRTriples));
2673 break;
2674 case llvm::Triple::csky:
2675 LibDirs.append(begin(CSKYLibDirs), end(CSKYLibDirs));
2676 TripleAliases.append(begin(CSKYTriples), end(CSKYTriples));
2677 break;
2678 case llvm::Triple::x86_64:
2679 if (TargetTriple.isX32()) {
2680 LibDirs.append(begin(X32LibDirs), end(X32LibDirs));
2681 TripleAliases.append(begin(X32Triples), end(X32Triples));
2682 BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2683 BiarchTripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
2684 } else {
2685 LibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2686 TripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
2687 BiarchLibDirs.append(begin(X32LibDirs), end(X32LibDirs));
2688 BiarchTripleAliases.append(begin(X32Triples), end(X32Triples));
2689 }
2690 BiarchLibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2691 BiarchTripleAliases.append(begin(X86Triples), end(X86Triples));
2692 break;
2693 case llvm::Triple::x86:
2694 LibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2695 // MCU toolchain is 32 bit only and its triple alias is TargetTriple
2696 // itself, which will be appended below.
2697 if (!TargetTriple.isOSIAMCU()) {
2698 TripleAliases.append(begin(X86Triples), end(X86Triples));
2699 BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2700 BiarchTripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
2701 BiarchLibDirs.append(begin(X32LibDirs), end(X32LibDirs));
2702 BiarchTripleAliases.append(begin(X32Triples), end(X32Triples));
2703 }
2704 break;
2705 // TODO: Handle loongarch32.
2706 case llvm::Triple::loongarch64:
2707 LibDirs.append(begin(LoongArch64LibDirs), end(LoongArch64LibDirs));
2708 TripleAliases.append(begin(LoongArch64Triples), end(LoongArch64Triples));
2709 break;
2710 case llvm::Triple::m68k:
2711 LibDirs.append(begin(M68kLibDirs), end(M68kLibDirs));
2712 TripleAliases.append(begin(M68kTriples), end(M68kTriples));
2713 break;
2714 case llvm::Triple::mips:
2715 LibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs));
2716 TripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2717 BiarchLibDirs.append(begin(MIPS64LibDirs), end(MIPS64LibDirs));
2718 BiarchTripleAliases.append(begin(MIPS64Triples), end(MIPS64Triples));
2719 BiarchLibDirs.append(begin(MIPSN32LibDirs), end(MIPSN32LibDirs));
2720 BiarchTripleAliases.append(begin(MIPSN32Triples), end(MIPSN32Triples));
2721 break;
2722 case llvm::Triple::mipsel:
2723 LibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs));
2724 TripleAliases.append(begin(MIPSELTriples), end(MIPSELTriples));
2725 TripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2726 BiarchLibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs));
2727 BiarchTripleAliases.append(begin(MIPS64ELTriples), end(MIPS64ELTriples));
2728 BiarchLibDirs.append(begin(MIPSN32ELLibDirs), end(MIPSN32ELLibDirs));
2729 BiarchTripleAliases.append(begin(MIPSN32ELTriples), end(MIPSN32ELTriples));
2730 break;
2731 case llvm::Triple::mips64:
2732 LibDirs.append(begin(MIPS64LibDirs), end(MIPS64LibDirs));
2733 TripleAliases.append(begin(MIPS64Triples), end(MIPS64Triples));
2734 BiarchLibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs));
2735 BiarchTripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2736 BiarchLibDirs.append(begin(MIPSN32LibDirs), end(MIPSN32LibDirs));
2737 BiarchTripleAliases.append(begin(MIPSN32Triples), end(MIPSN32Triples));
2738 break;
2739 case llvm::Triple::mips64el:
2740 LibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs));
2741 TripleAliases.append(begin(MIPS64ELTriples), end(MIPS64ELTriples));
2742 BiarchLibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs));
2743 BiarchTripleAliases.append(begin(MIPSELTriples), end(MIPSELTriples));
2744 BiarchLibDirs.append(begin(MIPSN32ELLibDirs), end(MIPSN32ELLibDirs));
2745 BiarchTripleAliases.append(begin(MIPSN32ELTriples), end(MIPSN32ELTriples));
2746 BiarchTripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2747 break;
2748 case llvm::Triple::msp430:
2749 LibDirs.append(begin(MSP430LibDirs), end(MSP430LibDirs));
2750 TripleAliases.append(begin(MSP430Triples), end(MSP430Triples));
2751 break;
2752 case llvm::Triple::ppc:
2753 LibDirs.append(begin(PPCLibDirs), end(PPCLibDirs));
2754 TripleAliases.append(begin(PPCTriples), end(PPCTriples));
2755 BiarchLibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs));
2756 BiarchTripleAliases.append(begin(PPC64Triples), end(PPC64Triples));
2757 break;
2758 case llvm::Triple::ppcle:
2759 LibDirs.append(begin(PPCLELibDirs), end(PPCLELibDirs));
2760 TripleAliases.append(begin(PPCLETriples), end(PPCLETriples));
2761 BiarchLibDirs.append(begin(PPC64LELibDirs), end(PPC64LELibDirs));
2762 BiarchTripleAliases.append(begin(PPC64LETriples), end(PPC64LETriples));
2763 break;
2764 case llvm::Triple::ppc64:
2765 LibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs));
2766 TripleAliases.append(begin(PPC64Triples), end(PPC64Triples));
2767 BiarchLibDirs.append(begin(PPCLibDirs), end(PPCLibDirs));
2768 BiarchTripleAliases.append(begin(PPCTriples), end(PPCTriples));
2769 break;
2770 case llvm::Triple::ppc64le:
2771 LibDirs.append(begin(PPC64LELibDirs), end(PPC64LELibDirs));
2772 TripleAliases.append(begin(PPC64LETriples), end(PPC64LETriples));
2773 BiarchLibDirs.append(begin(PPCLELibDirs), end(PPCLELibDirs));
2774 BiarchTripleAliases.append(begin(PPCLETriples), end(PPCLETriples));
2775 break;
2776 case llvm::Triple::riscv32:
2777 LibDirs.append(begin(RISCV32LibDirs), end(RISCV32LibDirs));
2778 TripleAliases.append(begin(RISCV32Triples), end(RISCV32Triples));
2779 BiarchLibDirs.append(begin(RISCV64LibDirs), end(RISCV64LibDirs));
2780 BiarchTripleAliases.append(begin(RISCV64Triples), end(RISCV64Triples));
2781 break;
2782 case llvm::Triple::riscv64:
2783 LibDirs.append(begin(RISCV64LibDirs), end(RISCV64LibDirs));
2784 TripleAliases.append(begin(RISCV64Triples), end(RISCV64Triples));
2785 BiarchLibDirs.append(begin(RISCV32LibDirs), end(RISCV32LibDirs));
2786 BiarchTripleAliases.append(begin(RISCV32Triples), end(RISCV32Triples));
2787 break;
2788 case llvm::Triple::sparc:
2789 case llvm::Triple::sparcel:
2790 LibDirs.append(begin(SPARCv8LibDirs), end(SPARCv8LibDirs));
2791 TripleAliases.append(begin(SPARCv8Triples), end(SPARCv8Triples));
2792 BiarchLibDirs.append(begin(SPARCv9LibDirs), end(SPARCv9LibDirs));
2793 BiarchTripleAliases.append(begin(SPARCv9Triples), end(SPARCv9Triples));
2794 break;
2795 case llvm::Triple::sparcv9:
2796 LibDirs.append(begin(SPARCv9LibDirs), end(SPARCv9LibDirs));
2797 TripleAliases.append(begin(SPARCv9Triples), end(SPARCv9Triples));
2798 BiarchLibDirs.append(begin(SPARCv8LibDirs), end(SPARCv8LibDirs));
2799 BiarchTripleAliases.append(begin(SPARCv8Triples), end(SPARCv8Triples));
2800 break;
2801 case llvm::Triple::systemz:
2802 LibDirs.append(begin(SystemZLibDirs), end(SystemZLibDirs));
2803 TripleAliases.append(begin(SystemZTriples), end(SystemZTriples));
2804 break;
2805 default:
2806 // By default, just rely on the standard lib directories and the original
2807 // triple.
2808 break;
2809 }
2810
2811 // Also include the multiarch variant if it's different.
2812 if (TargetTriple.str() != BiarchTriple.str())
2813 BiarchTripleAliases.push_back(BiarchTriple.str());
2814}
2815
2816bool Generic_GCC::GCCInstallationDetector::ScanGCCForMultilibs(
2817 const llvm::Triple &TargetTriple, const ArgList &Args,
2818 StringRef Path, bool NeedsBiarchSuffix) {
2819 llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
2820 DetectedMultilibs Detected;
2821
2822 // Android standalone toolchain could have multilibs for ARM and Thumb.
2823 // Debian mips multilibs behave more like the rest of the biarch ones,
2824 // so handle them there
2825 if (isArmOrThumbArch(TargetArch) && TargetTriple.isAndroid()) {
2826 // It should also work without multilibs in a simplified toolchain.
2827 findAndroidArmMultilibs(D, TargetTriple, Path, Args, Detected);
2828 } else if (TargetTriple.isCSKY()) {
2829 findCSKYMultilibs(D, TargetTriple, Path, Args, Detected);
2830 } else if (TargetTriple.isMIPS()) {
2831 if (!findMIPSMultilibs(D, TargetTriple, Path, Args, Detected))
2832 return false;
2833 } else if (TargetTriple.isRISCV()) {
2834 findRISCVMultilibs(D, TargetTriple, Path, Args, Detected);
2835 } else if (isMSP430(TargetArch)) {
2836 findMSP430Multilibs(D, TargetTriple, Path, Args, Detected);
2837 } else if (TargetArch == llvm::Triple::avr) {
2838 // AVR has no multilibs.
2839 } else if (!findBiarchMultilibs(D, TargetTriple, Path, Args,
2840 NeedsBiarchSuffix, Detected)) {
2841 return false;
2842 }
2843
2844 Multilibs = Detected.Multilibs;
2845 SelectedMultilib = Detected.SelectedMultilibs.empty()
2846 ? Multilib()
2847 : Detected.SelectedMultilibs.back();
2848 BiarchSibling = Detected.BiarchSibling;
2849
2850 return true;
2851}
2852
2853void Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple(
2854 const llvm::Triple &TargetTriple, const ArgList &Args,
2855 const std::string &LibDir, StringRef CandidateTriple,
2856 bool NeedsBiarchSuffix, bool GCCDirExists, bool GCCCrossDirExists) {
2857 // Locations relative to the system lib directory where GCC's triple-specific
2858 // directories might reside.
2859 struct GCCLibSuffix {
2860 // Path from system lib directory to GCC triple-specific directory.
2861 std::string LibSuffix;
2862 // Path from GCC triple-specific directory back to system lib directory.
2863 // This is one '..' component per component in LibSuffix.
2864 StringRef ReversePath;
2865 // Whether this library suffix is relevant for the triple.
2866 bool Active;
2867 } Suffixes[] = {
2868 // This is the normal place.
2869 {"gcc/" + CandidateTriple.str(), "../..", GCCDirExists},
2870
2871 // Debian puts cross-compilers in gcc-cross.
2872 {"gcc-cross/" + CandidateTriple.str(), "../..", GCCCrossDirExists},
2873
2874 // The Freescale PPC SDK has the gcc libraries in
2875 // <sysroot>/usr/lib/<triple>/x.y.z so have a look there as well. Only do
2876 // this on Freescale triples, though, since some systems put a *lot* of
2877 // files in that location, not just GCC installation data.
2878 {CandidateTriple.str(), "..",
2879 TargetTriple.getVendor() == llvm::Triple::Freescale ||
2880 TargetTriple.getVendor() == llvm::Triple::OpenEmbedded}};
2881
2882 for (auto &Suffix : Suffixes) {
2883 if (!Suffix.Active)
2884 continue;
2885
2886 StringRef LibSuffix = Suffix.LibSuffix;
2887 std::error_code EC;
2888 for (llvm::vfs::directory_iterator
2889 LI = D.getVFS().dir_begin(LibDir + "/" + LibSuffix, EC),
2890 LE;
2891 !EC && LI != LE; LI = LI.increment(EC)) {
2892 StringRef VersionText = llvm::sys::path::filename(LI->path());
2893 GCCVersion CandidateVersion = GCCVersion::Parse(VersionText);
2894 if (CandidateVersion.Major != -1) // Filter obviously bad entries.
2895 if (!CandidateGCCInstallPaths.insert(std::string(LI->path())).second)
2896 continue; // Saw this path before; no need to look at it again.
2897 if (CandidateVersion.isOlderThan(4, 1, 1))
2898 continue;
2899 if (CandidateVersion <= Version)
2900 continue;
2901
2902 if (!ScanGCCForMultilibs(TargetTriple, Args, LI->path(),
2903 NeedsBiarchSuffix))
2904 continue;
2905
2906 Version = CandidateVersion;
2907 GCCTriple.setTriple(CandidateTriple);
2908 // FIXME: We hack together the directory name here instead of
2909 // using LI to ensure stable path separators across Windows and
2910 // Linux.
2911 GCCInstallPath = (LibDir + "/" + LibSuffix + "/" + VersionText).str();
2912 GCCParentLibPath = (GCCInstallPath + "/../" + Suffix.ReversePath).str();
2913 IsValid = true;
2914 }
2915 }
2916}
2917
2918bool Generic_GCC::GCCInstallationDetector::ScanGentooConfigs(
2919 const llvm::Triple &TargetTriple, const ArgList &Args,
2920 const SmallVectorImpl<StringRef> &CandidateTriples,
2921 const SmallVectorImpl<StringRef> &CandidateBiarchTriples) {
2922 if (!D.getVFS().exists(concat(D.SysRoot, GentooConfigDir)))
2923 return false;
2924
2925 for (StringRef CandidateTriple : CandidateTriples) {
2926 if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple))
2927 return true;
2928 }
2929
2930 for (StringRef CandidateTriple : CandidateBiarchTriples) {
2931 if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple, true))
2932 return true;
2933 }
2934 return false;
2935}
2936
2937bool Generic_GCC::GCCInstallationDetector::ScanGentooGccConfig(
2938 const llvm::Triple &TargetTriple, const ArgList &Args,
2939 StringRef CandidateTriple, bool NeedsBiarchSuffix) {
2940 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> File =
2941 D.getVFS().getBufferForFile(concat(D.SysRoot, GentooConfigDir,
2942 "/config-" + CandidateTriple.str()));
2943 if (File) {
2944 SmallVector<StringRef, 2> Lines;
2945 File.get()->getBuffer().split(Lines, "\n");
2946 for (StringRef Line : Lines) {
2947 Line = Line.trim();
2948 // CURRENT=triple-version
2949 if (!Line.consume_front("CURRENT="))
2950 continue;
2951 // Process the config file pointed to by CURRENT.
2952 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> ConfigFile =
2953 D.getVFS().getBufferForFile(
2954 concat(D.SysRoot, GentooConfigDir, "/" + Line));
2955 std::pair<StringRef, StringRef> ActiveVersion = Line.rsplit('-');
2956 // List of paths to scan for libraries.
2957 SmallVector<StringRef, 4> GentooScanPaths;
2958 // Scan the Config file to find installed GCC libraries path.
2959 // Typical content of the GCC config file:
2960 // LDPATH="/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.x:/usr/lib/gcc/
2961 // (continued from previous line) x86_64-pc-linux-gnu/4.9.x/32"
2962 // MANPATH="/usr/share/gcc-data/x86_64-pc-linux-gnu/4.9.x/man"
2963 // INFOPATH="/usr/share/gcc-data/x86_64-pc-linux-gnu/4.9.x/info"
2964 // STDCXX_INCDIR="/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.x/include/g++-v4"
2965 // We are looking for the paths listed in LDPATH=... .
2966 if (ConfigFile) {
2967 SmallVector<StringRef, 2> ConfigLines;
2968 ConfigFile.get()->getBuffer().split(ConfigLines, "\n");
2969 for (StringRef ConfLine : ConfigLines) {
2970 ConfLine = ConfLine.trim();
2971 if (ConfLine.consume_front("LDPATH=")) {
2972 // Drop '"' from front and back if present.
2973 ConfLine.consume_back("\"");
2974 ConfLine.consume_front("\"");
2975 // Get all paths sperated by ':'
2976 ConfLine.split(GentooScanPaths, ':', -1, /*AllowEmpty*/ false);
2977 }
2978 }
2979 }
2980 // Test the path based on the version in /etc/env.d/gcc/config-{tuple}.
2981 std::string basePath = "/usr/lib/gcc/" + ActiveVersion.first.str() + "/"
2982 + ActiveVersion.second.str();
2983 GentooScanPaths.push_back(StringRef(basePath));
2984
2985 // Scan all paths for GCC libraries.
2986 for (const auto &GentooScanPath : GentooScanPaths) {
2987 std::string GentooPath = concat(D.SysRoot, GentooScanPath);
2988 if (D.getVFS().exists(GentooPath + "/crtbegin.o")) {
2989 if (!ScanGCCForMultilibs(TargetTriple, Args, GentooPath,
2990 NeedsBiarchSuffix))
2991 continue;
2992
2993 Version = GCCVersion::Parse(ActiveVersion.second);
2994 GCCInstallPath = GentooPath;
2995 GCCParentLibPath = GentooPath + std::string("/../../..");
2996 GCCTriple.setTriple(ActiveVersion.first);
2997 IsValid = true;
2998 return true;
2999 }
3000 }
3001 }
3002 }
3003
3004 return false;
3005}
3006
3007Generic_GCC::Generic_GCC(const Driver &D, const llvm::Triple &Triple,
3008 const ArgList &Args)
3009 : ToolChain(D, Triple, Args), GCCInstallation(D),
3010 CudaInstallation(D, Triple, Args), RocmInstallation(D, Triple, Args),
3011 SYCLInstallation(D, Triple, Args) {
3012 getProgramPaths().push_back(getDriver().Dir);
3013}
3014
3015Generic_GCC::~Generic_GCC() {}
3016
3017Tool *Generic_GCC::getTool(Action::ActionClass AC) const {
3018 switch (AC) {
3019 case Action::PreprocessJobClass:
3020 if (!Preprocess)
3021 Preprocess.reset(new clang::driver::tools::gcc::Preprocessor(*this));
3022 return Preprocess.get();
3023 case Action::CompileJobClass:
3024 if (!Compile)
3025 Compile.reset(new tools::gcc::Compiler(*this));
3026 return Compile.get();
3027 default:
3028 return ToolChain::getTool(AC);
3029 }
3030}
3031
3032Tool *Generic_GCC::buildAssembler() const {
3033 return new tools::gnutools::Assembler(*this);
3034}
3035
3036Tool *Generic_GCC::buildLinker() const { return new tools::gcc::Linker(*this); }
3037
3038void Generic_GCC::printVerboseInfo(raw_ostream &OS) const {
3039 // Print the information about how we detected the GCC installation.
3040 GCCInstallation.print(OS);
3041 CudaInstallation->print(OS);
3042 RocmInstallation->print(OS);
3043}
3044
3045ToolChain::UnwindTableLevel
3046Generic_GCC::getDefaultUnwindTableLevel(const ArgList &Args) const {
3047 switch (getArch()) {
3048 case llvm::Triple::aarch64:
3049 case llvm::Triple::aarch64_be:
3050 case llvm::Triple::ppc:
3051 case llvm::Triple::ppcle:
3052 case llvm::Triple::ppc64:
3053 case llvm::Triple::ppc64le:
3054 case llvm::Triple::riscv32:
3055 case llvm::Triple::riscv64:
3056 case llvm::Triple::x86:
3057 case llvm::Triple::x86_64:
3058 return UnwindTableLevel::Asynchronous;
3059 default:
3060 return UnwindTableLevel::None;
3061 }
3062}
3063
3064bool Generic_GCC::isPICDefault() const {
3065 switch (getArch()) {
3066 case llvm::Triple::x86_64:
3067 return getTriple().isOSWindows();
3068 case llvm::Triple::mips64:
3069 case llvm::Triple::mips64el:
3070 return true;
3071 default:
3072 return false;
3073 }
3074}
3075
3076bool Generic_GCC::isPIEDefault(const llvm::opt::ArgList &Args) const {
3077 return false;
3078}
3079
3080bool Generic_GCC::isPICDefaultForced() const {
3081 return getArch() == llvm::Triple::x86_64 && getTriple().isOSWindows();
3082}
3083
3084bool Generic_GCC::IsIntegratedAssemblerDefault() const {
3085 switch (getTriple().getArch()) {
3086 case llvm::Triple::nvptx:
3087 case llvm::Triple::nvptx64:
3088 case llvm::Triple::xcore:
3089 return false;
3090 default:
3091 return true;
3092 }
3093}
3094
3095void Generic_GCC::PushPPaths(ToolChain::path_list &PPaths) {
3096 // Cross-compiling binutils and GCC installations (vanilla and openSUSE at
3097 // least) put various tools in a triple-prefixed directory off of the parent
3098 // of the GCC installation. We use the GCC triple here to ensure that we end
3099 // up with tools that support the same amount of cross compiling as the
3100 // detected GCC installation. For example, if we find a GCC installation
3101 // targeting x86_64, but it is a bi-arch GCC installation, it can also be
3102 // used to target i386.
3103 if (GCCInstallation.isValid()) {
3104 PPaths.push_back(Twine(GCCInstallation.getParentLibPath() + "/../" +
3105 GCCInstallation.getTriple().str() + "/bin")
3106 .str());
3107 }
3108}
3109
3110void Generic_GCC::AddMultilibPaths(const Driver &D,
3111 const std::string &SysRoot,
3112 const std::string &OSLibDir,
3113 const std::string &MultiarchTriple,
3114 path_list &Paths) {
3115 // Add the multilib suffixed paths where they are available.
3116 if (GCCInstallation.isValid()) {
3117 assert(!SelectedMultilibs.empty());
3118 const llvm::Triple &GCCTriple = GCCInstallation.getTriple();
3119 const std::string &LibPath =
3120 std::string(GCCInstallation.getParentLibPath());
3121
3122 // Sourcery CodeBench MIPS toolchain holds some libraries under
3123 // a biarch-like suffix of the GCC installation.
3124 if (const auto &PathsCallback = Multilibs.filePathsCallback())
3125 for (const auto &Path : PathsCallback(SelectedMultilibs.back()))
3126 addPathIfExists(D, GCCInstallation.getInstallPath() + Path, Paths);
3127
3128 // Add lib/gcc/$triple/$version, with an optional /multilib suffix.
3129 addPathIfExists(D,
3130 GCCInstallation.getInstallPath() +
3131 SelectedMultilibs.back().gccSuffix(),
3132 Paths);
3133
3134 // Add lib/gcc/$triple/$libdir
3135 // For GCC built with --enable-version-specific-runtime-libs.
3136 addPathIfExists(D, GCCInstallation.getInstallPath() + "/../" + OSLibDir,
3137 Paths);
3138
3139 // GCC cross compiling toolchains will install target libraries which ship
3140 // as part of the toolchain under <prefix>/<triple>/<libdir> rather than as
3141 // any part of the GCC installation in
3142 // <prefix>/<libdir>/gcc/<triple>/<version>. This decision is somewhat
3143 // debatable, but is the reality today. We need to search this tree even
3144 // when we have a sysroot somewhere else. It is the responsibility of
3145 // whomever is doing the cross build targeting a sysroot using a GCC
3146 // installation that is *not* within the system root to ensure two things:
3147 //
3148 // 1) Any DSOs that are linked in from this tree or from the install path
3149 // above must be present on the system root and found via an
3150 // appropriate rpath.
3151 // 2) There must not be libraries installed into
3152 // <prefix>/<triple>/<libdir> unless they should be preferred over
3153 // those within the system root.
3154 //
3155 // Note that this matches the GCC behavior. See the below comment for where
3156 // Clang diverges from GCC's behavior.
3157 addPathIfExists(D,
3158 LibPath + "/../" + GCCTriple.str() + "/lib/../" + OSLibDir +
3159 SelectedMultilibs.back().osSuffix(),
3160 Paths);
3161
3162 // If the GCC installation we found is inside of the sysroot, we want to
3163 // prefer libraries installed in the parent prefix of the GCC installation.
3164 // It is important to *not* use these paths when the GCC installation is
3165 // outside of the system root as that can pick up unintended libraries.
3166 // This usually happens when there is an external cross compiler on the
3167 // host system, and a more minimal sysroot available that is the target of
3168 // the cross. Note that GCC does include some of these directories in some
3169 // configurations but this seems somewhere between questionable and simply
3170 // a bug.
3171 if (StringRef(LibPath).starts_with(SysRoot))
3172 addPathIfExists(D, LibPath + "/../" + OSLibDir, Paths);
3173 }
3174}
3175
3176void Generic_GCC::AddMultiarchPaths(const Driver &D,
3177 const std::string &SysRoot,
3178 const std::string &OSLibDir,
3179 path_list &Paths) {
3180 if (GCCInstallation.isValid()) {
3181 const std::string &LibPath =
3182 std::string(GCCInstallation.getParentLibPath());
3183 const llvm::Triple &GCCTriple = GCCInstallation.getTriple();
3184 const Multilib &Multilib = GCCInstallation.getMultilib();
3185 addPathIfExists(
3186 D, LibPath + "/../" + GCCTriple.str() + "/lib" + Multilib.osSuffix(),
3187 Paths);
3188 }
3189}
3190
3191void Generic_GCC::AddMultilibIncludeArgs(const ArgList &DriverArgs,
3192 ArgStringList &CC1Args) const {
3193 // Add include directories specific to the selected multilib set and multilib.
3194 if (!GCCInstallation.isValid())
3195 return;
3196 // gcc TOOL_INCLUDE_DIR.
3197 const llvm::Triple &GCCTriple = GCCInstallation.getTriple();
3198 std::string LibPath(GCCInstallation.getParentLibPath());
3199 addSystemInclude(DriverArgs, CC1Args,
3200 Twine(LibPath) + "/../" + GCCTriple.str() + "/include");
3201
3202 const auto &Callback = Multilibs.includeDirsCallback();
3203 if (Callback) {
3204 for (const auto &Path : Callback(GCCInstallation.getMultilib()))
3205 addExternCSystemIncludeIfExists(DriverArgs, CC1Args,
3206 GCCInstallation.getInstallPath() + Path);
3207 }
3208}
3209
3210void Generic_GCC::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
3211 ArgStringList &CC1Args) const {
3212 if (DriverArgs.hasArg(options::OPT_nostdinc, options::OPT_nostdincxx,
3213 options::OPT_nostdlibinc))
3214 return;
3215
3216 switch (GetCXXStdlibType(DriverArgs)) {
3217 case ToolChain::CST_Libcxx:
3218 addLibCxxIncludePaths(DriverArgs, CC1Args);
3219 break;
3220
3221 case ToolChain::CST_Libstdcxx:
3222 addLibStdCxxIncludePaths(DriverArgs, CC1Args);
3223 break;
3224 }
3225}
3226
3227void Generic_GCC::addSYCLIncludeArgs(const ArgList &DriverArgs,
3228 ArgStringList &CC1Args) const {
3229 SYCLInstallation->addSYCLIncludeArgs(DriverArgs, CC1Args);
3230}
3231
3232void
3233Generic_GCC::addLibCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
3234 llvm::opt::ArgStringList &CC1Args) const {
3235 const Driver &D = getDriver();
3236 std::string SysRoot = computeSysRoot();
3237 if (SysRoot.empty())
3238 SysRoot = llvm::sys::path::get_separator();
3239
3240 auto AddIncludePath = [&](StringRef Path, bool TargetDirRequired = false) {
3241 std::string Version = detectLibcxxVersion(Path);
3242 if (Version.empty())
3243 return false;
3244
3245 // First add the per-target include path if it exists.
3246 bool TargetDirExists = false;
3247 std::optional<std::string> TargetIncludeDir = getTargetSubDirPath(Path);
3248 if (TargetIncludeDir) {
3249 SmallString<128> TargetDir(*TargetIncludeDir);
3250 llvm::sys::path::append(TargetDir, "c++", Version);
3251 if (D.getVFS().exists(TargetDir)) {
3252 addSystemInclude(DriverArgs, CC1Args, TargetDir);
3253 TargetDirExists = true;
3254 }
3255 }
3256 if (TargetDirRequired && !TargetDirExists)
3257 return false;
3258
3259 // Second add the generic one.
3260 SmallString<128> GenericDir(Path);
3261 llvm::sys::path::append(GenericDir, "c++", Version);
3262 addSystemInclude(DriverArgs, CC1Args, GenericDir);
3263 return true;
3264 };
3265
3266 // Android only uses the libc++ headers installed alongside the toolchain if
3267 // they contain an Android-specific target include path, otherwise they're
3268 // incompatible with the NDK libraries.
3269 SmallString<128> DriverIncludeDir(getDriver().Dir);
3270 llvm::sys::path::append(DriverIncludeDir, "..", "include");
3271 if (AddIncludePath(DriverIncludeDir,
3272 /*TargetDirRequired=*/getTriple().isAndroid()))
3273 return;
3274 // If this is a development, non-installed, clang, libcxx will
3275 // not be found at ../include/c++ but it likely to be found at
3276 // one of the following two locations:
3277 SmallString<128> UsrLocalIncludeDir(SysRoot);
3278 llvm::sys::path::append(UsrLocalIncludeDir, "usr", "local", "include");
3279 if (AddIncludePath(UsrLocalIncludeDir))
3280 return;
3281 SmallString<128> UsrIncludeDir(SysRoot);
3282 llvm::sys::path::append(UsrIncludeDir, "usr", "include");
3283 if (AddIncludePath(UsrIncludeDir))
3284 return;
3285}
3286
3287bool Generic_GCC::addLibStdCXXIncludePaths(Twine IncludeDir, StringRef Triple,
3288 Twine IncludeSuffix,
3289 const llvm::opt::ArgList &DriverArgs,
3290 llvm::opt::ArgStringList &CC1Args,
3291 bool DetectDebian) const {
3292 if (!getVFS().exists(IncludeDir))
3293 return false;
3294
3295 // Debian native gcc uses g++-multiarch-incdir.diff which uses
3296 // include/x86_64-linux-gnu/c++/10$IncludeSuffix instead of
3297 // include/c++/10/x86_64-linux-gnu$IncludeSuffix.
3298 std::string Dir = IncludeDir.str();
3299 StringRef Include =
3300 llvm::sys::path::parent_path(llvm::sys::path::parent_path(Dir));
3301 std::string Path =
3302 (Include + "/" + Triple + Dir.substr(Include.size()) + IncludeSuffix)
3303 .str();
3304 if (DetectDebian && !getVFS().exists(Path))
3305 return false;
3306
3307 // GPLUSPLUS_INCLUDE_DIR
3308 addSystemInclude(DriverArgs, CC1Args, IncludeDir);
3309 // GPLUSPLUS_TOOL_INCLUDE_DIR. If Triple is not empty, add a target-dependent
3310 // include directory.
3311 if (DetectDebian)
3312 addSystemInclude(DriverArgs, CC1Args, Path);
3313 else if (!Triple.empty())
3314 addSystemInclude(DriverArgs, CC1Args,
3315 IncludeDir + "/" + Triple + IncludeSuffix);
3316 // GPLUSPLUS_BACKWARD_INCLUDE_DIR
3317 addSystemInclude(DriverArgs, CC1Args, IncludeDir + "/backward");
3318 return true;
3319}
3320
3321bool Generic_GCC::addGCCLibStdCxxIncludePaths(
3322 const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args,
3323 StringRef DebianMultiarch) const {
3324 assert(GCCInstallation.isValid());
3325
3326 // By default, look for the C++ headers in an include directory adjacent to
3327 // the lib directory of the GCC installation. Note that this is expect to be
3328 // equivalent to '/usr/include/c++/X.Y' in almost all cases.
3329 StringRef LibDir = GCCInstallation.getParentLibPath();
3330 StringRef InstallDir = GCCInstallation.getInstallPath();
3331 StringRef TripleStr = GCCInstallation.getTriple().str();
3332 const Multilib &Multilib = GCCInstallation.getMultilib();
3333 const GCCVersion &Version = GCCInstallation.getVersion();
3334
3335 // Try /../$triple/include/c++/$version (gcc --print-multiarch is not empty).
3336 if (addLibStdCXXIncludePaths(
3337 LibDir.str() + "/../" + TripleStr + "/include/c++/" + Version.Text,
3338 TripleStr, Multilib.includeSuffix(), DriverArgs, CC1Args))
3339 return true;
3340
3341 // Try /gcc/$triple/$version/include/c++/ (gcc --print-multiarch is not
3342 // empty). Like above but for GCC built with
3343 // --enable-version-specific-runtime-libs.
3344 if (addLibStdCXXIncludePaths(LibDir.str() + "/gcc/" + TripleStr + "/" +
3345 Version.Text + "/include/c++/",
3346 TripleStr, Multilib.includeSuffix(), DriverArgs,
3347 CC1Args))
3348 return true;
3349
3350 // Detect Debian g++-multiarch-incdir.diff.
3351 if (addLibStdCXXIncludePaths(LibDir.str() + "/../include/c++/" + Version.Text,
3352 DebianMultiarch, Multilib.includeSuffix(),
3353 DriverArgs, CC1Args, /*Debian=*/true))
3354 return true;
3355
3356 // Try /../include/c++/$version (gcc --print-multiarch is empty).
3357 if (addLibStdCXXIncludePaths(LibDir.str() + "/../include/c++/" + Version.Text,
3358 TripleStr, Multilib.includeSuffix(), DriverArgs,
3359 CC1Args))
3360 return true;
3361
3362 // Otherwise, fall back on a bunch of options which don't use multiarch
3363 // layouts for simplicity.
3364 const std::string LibStdCXXIncludePathCandidates[] = {
3365 // Gentoo is weird and places its headers inside the GCC install,
3366 // so if the first attempt to find the headers fails, try these patterns.
3367 InstallDir.str() + "/include/g++-v" + Version.Text,
3368 InstallDir.str() + "/include/g++-v" + Version.MajorStr + "." +
3369 Version.MinorStr,
3370 InstallDir.str() + "/include/g++-v" + Version.MajorStr,
3371 };
3372
3373 for (const auto &IncludePath : LibStdCXXIncludePathCandidates) {
3374 if (addLibStdCXXIncludePaths(IncludePath, TripleStr,
3375 Multilib.includeSuffix(), DriverArgs, CC1Args))
3376 return true;
3377 }
3378 return false;
3379}
3380
3381void
3382Generic_GCC::addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
3383 llvm::opt::ArgStringList &CC1Args) const {
3384 if (GCCInstallation.isValid()) {
3385 addGCCLibStdCxxIncludePaths(DriverArgs, CC1Args,
3386 GCCInstallation.getTriple().str());
3387 }
3388}
3389
3390llvm::opt::DerivedArgList *
3391Generic_GCC::TranslateArgs(const llvm::opt::DerivedArgList &Args, StringRef,
3392 Action::OffloadKind DeviceOffloadKind) const {
3393
3394 // If this tool chain is used for an OpenMP offloading device we have to make
3395 // sure we always generate a shared library regardless of the commands the
3396 // user passed to the host. This is required because the runtime library
3397 // is required to load the device image dynamically at run time.
3398 if (DeviceOffloadKind == Action::OFK_OpenMP) {
3399 DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs());
3400 const OptTable &Opts = getDriver().getOpts();
3401
3402 // Request the shared library. Given that these options are decided
3403 // implicitly, they do not refer to any base argument.
3404 DAL->AddFlagArg(/*BaseArg=*/nullptr, Opts.getOption(options::OPT_shared));
3405 DAL->AddFlagArg(/*BaseArg=*/nullptr, Opts.getOption(options::OPT_fPIC));
3406
3407 // Filter all the arguments we don't care passing to the offloading
3408 // toolchain as they can mess up with the creation of a shared library.
3409 for (auto *A : Args) {
3410 switch ((options::ID)A->getOption().getID()) {
3411 default:
3412 DAL->append(A);
3413 break;
3414 case options::OPT_shared:
3415 case options::OPT_dynamic:
3416 case options::OPT_static:
3417 case options::OPT_fPIC:
3418 case options::OPT_fno_PIC:
3419 case options::OPT_fpic:
3420 case options::OPT_fno_pic:
3421 case options::OPT_fPIE:
3422 case options::OPT_fno_PIE:
3423 case options::OPT_fpie:
3424 case options::OPT_fno_pie:
3425 break;
3426 }
3427 }
3428 return DAL;
3429 }
3430 return nullptr;
3431}
3432
3433void Generic_ELF::anchor() {}
3434
3435void Generic_ELF::addClangTargetOptions(const ArgList &DriverArgs,
3436 ArgStringList &CC1Args,
3437 Action::OffloadKind) const {
3438 if (!DriverArgs.hasFlag(options::OPT_fuse_init_array,
3439 options::OPT_fno_use_init_array, true))
3440 CC1Args.push_back("-fno-use-init-array");
3441}
P
StringRef P
Definition: ASTMatchersInternal.cpp:574
findRISCVMultilibs
static bool findRISCVMultilibs(const Driver &D, const llvm::Triple &TargetTriple, const ArgList &Args, DetectedMultilibs &Result)
Definition: BareMetal.cpp:36
Suffixes
static constexpr CPUSuffix Suffixes[]
Definition: Hexagon.cpp:237
D
const Decl * D
Definition: CheckExprLifetime.cpp:212
Path
IndirectLocalPath & Path
Definition: CheckExprLifetime.cpp:226
IsStatic
bool IsStatic
Definition: Format.cpp:3065
findCSKYMultilibs
static void findCSKYMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, DetectedMultilibs &Result)
Definition: Gnu.cpp:1618
findAndroidArmMultilibs
static void findAndroidArmMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, DetectedMultilibs &Result)
Definition: Gnu.cpp:1547
findMipsCsMultilibs
static bool findMipsCsMultilibs(const Driver &D, const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition: Gnu.cpp:1044
isArmOrThumbArch
static bool isArmOrThumbArch(llvm::Triple::ArchType Arch)
Definition: Gnu.cpp:1022
selectRISCVMultilib
static bool selectRISCVMultilib(const Driver &D, const MultilibSet &RISCVMultilibSet, StringRef Arch, const Multilib::flags_list &Flags, llvm::SmallVectorImpl< Multilib > &SelectedMultilibs)
Extend the multi-lib re-use selection mechanism for RISC-V.
Definition: Gnu.cpp:1694
normalizeCPUNamesForAssembler
static void normalizeCPUNamesForAssembler(const ArgList &Args, ArgStringList &CmdArgs)
Definition: Gnu.cpp:56
findBiarchMultilibs
static bool findBiarchMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, bool NeedsBiarchSuffix, DetectedMultilibs &Result)
Definition: Gnu.cpp:1898
isMips16
static bool isMips16(const ArgList &Args)
Definition: Gnu.cpp:1030
getGCCToolchainDir
static llvm::StringRef getGCCToolchainDir(const ArgList &Args, llvm::StringRef SysRoot)
Definition: Gnu.cpp:2149
findMSP430Multilibs
static bool findMSP430Multilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, DetectedMultilibs &Result)
Definition: Gnu.cpp:1590
getStatic
static bool getStatic(const ArgList &Args)
Definition: Gnu.cpp:306
isMipsEL
static bool isMipsEL(llvm::Triple::ArchType Arch)
Definition: Gnu.cpp:1026
getLDMOption
static const char * getLDMOption(const llvm::Triple &T, const ArgList &Args)
Definition: Gnu.cpp:224
findMipsMuslMultilibs
static bool findMipsMuslMultilibs(const Driver &D, const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition: Gnu.cpp:1149
findRISCVBareMetalMultilibs
static void findRISCVBareMetalMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, DetectedMultilibs &Result)
Definition: Gnu.cpp:1800
isMSP430
static bool isMSP430(llvm::Triple::ArchType Arch)
Definition: Gnu.cpp:1040
isSoftFloatABI
static bool isSoftFloatABI(const ArgList &Args)
Definition: Gnu.cpp:1011
getStaticPIE
static bool getStaticPIE(const ArgList &Args, const ToolChain &TC)
Definition: Gnu.cpp:294
findMipsImgMultilibs
static bool findMipsImgMultilibs(const Driver &D, const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition: Gnu.cpp:1371
forwardToGCC
static bool forwardToGCC(const Option &O)
Definition: Gnu.cpp:46
findMipsMtiMultilibs
static bool findMipsMtiMultilibs(const Driver &D, const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition: Gnu.cpp:1184
isMicroMips
static bool isMicroMips(const ArgList &Args)
Definition: Gnu.cpp:1035
clang::driver::Action::getType
types::ID getType() const
Definition: Action.h:149
clang::driver::Action::isHostOffloading
bool isHostOffloading(unsigned int OKind) const
Check if this action have any offload kinds.
Definition: Action.h:219
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:99
clang::driver::Driver::getOpts
const llvm::opt::OptTable & getOpts() const
Definition: Driver.h:426
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::flag
MultilibBuilder & flag(StringRef Flag, bool Disallow=false)
Add a flag to the flags list Flag must be a flag accepted by the driver.
Definition: MultilibBuilder.cpp:86
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::MultilibSetBuilder
This class can be used to create a MultilibSet, and contains helper functions to add combinations of ...
Definition: MultilibBuilder.h:96
clang::driver::MultilibSetBuilder::Maybe
MultilibSetBuilder & Maybe(const MultilibBuilder &M)
Add an optional Multilib segment.
Definition: MultilibBuilder.cpp:95
clang::driver::MultilibSetBuilder::FilterOut
MultilibSetBuilder & FilterOut(const char *Regex)
Filter out those Multilibs whose gccSuffix matches the given expression.
Definition: MultilibBuilder.cpp:173
clang::driver::MultilibSetBuilder::Either
MultilibSetBuilder & Either(const MultilibBuilder &M1, const MultilibBuilder &M2)
Add a set of mutually incompatible Multilib segments.
Definition: MultilibBuilder.cpp:105
clang::driver::MultilibSet
See also MultilibSetBuilder for combining multilibs into a set.
Definition: Multilib.h:129
clang::driver::MultilibSet::select
bool select(const Driver &D, const Multilib::flags_list &Flags, llvm::SmallVectorImpl< Multilib > &, llvm::SmallVector< StringRef > *=nullptr) const
Select compatible variants,.
Definition: Multilib.cpp:218
clang::driver::MultilibSet::setFilePathsCallback
MultilibSet & setFilePathsCallback(IncludeDirsFunc F)
Definition: Multilib.h:201
clang::driver::MultilibSet::size
unsigned size() const
Definition: Multilib.h:184
clang::driver::MultilibSet::FilterOut
MultilibSet & FilterOut(FilterCallback F)
Filter out some subset of the Multilibs using a user defined callback.
Definition: Multilib.cpp:88
clang::driver::MultilibSet::filePathsCallback
const IncludeDirsFunc & filePathsCallback() const
Definition: Multilib.h:206
clang::driver::MultilibSet::includeDirsCallback
const IncludeDirsFunc & includeDirsCallback() const
Definition: Multilib.h:199
clang::driver::MultilibSet::setIncludeDirsCallback
MultilibSet & setIncludeDirsCallback(IncludeDirsFunc F)
Definition: Multilib.h:194
clang::driver::Multilib
This corresponds to a single GCC Multilib, or a segment of one controlled by a command line flag.
Definition: Multilib.h:35
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:70
clang::driver::Multilib::osSuffix
const std::string & osSuffix() const
Get the detected os path suffix for the multi-arch target variant.
Definition: Multilib.h:74
clang::driver::Multilib::flags_list
std::vector< std::string > flags_list
Definition: Multilib.h:37
clang::driver::Multilib::includeSuffix
const std::string & includeSuffix() const
Get the include directory suffix.
Definition: Multilib.h:78
clang::driver::Multilib::isDefault
bool isDefault() const
Check whether the default is selected.
Definition: Multilib.h:92
clang::driver::ToolChain
ToolChain - Access to tools for a single platform.
Definition: ToolChain.h:92
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:1277
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:1163
clang::driver::ToolChain::GetRuntimeLibType
virtual RuntimeLibType GetRuntimeLibType(const llvm::opt::ArgList &Args) const
Definition: ToolChain.cpp:1189
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:1379
clang::driver::ToolChain::GetFilePath
std::string GetFilePath(const char *Name) const
Definition: ToolChain.cpp:961
clang::driver::ToolChain::getArch
llvm::Triple::ArchType getArch() const
Definition: ToolChain.h:268
clang::driver::ToolChain::getDriver
const Driver & getDriver() const
Definition: ToolChain.h:252
clang::driver::ToolChain::detectLibcxxVersion
virtual std::string detectLibcxxVersion(StringRef IncludePath) const
Definition: ToolChain.cpp:1324
clang::driver::ToolChain::getVFS
llvm::vfs::FileSystem & getVFS() const
Definition: ToolChain.cpp:153
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:1452
clang::driver::ToolChain::getProgramPaths
path_list & getProgramPaths()
Definition: ToolChain.h:297
clang::driver::ToolChain::addExternCSystemIncludeIfExists
static void addExternCSystemIncludeIfExists(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, const Twine &Path)
Definition: ToolChain.cpp:1299
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:1385
clang::driver::ToolChain::getTriple
const llvm::Triple & getTriple() const
Definition: ToolChain.h:254
clang::driver::ToolChain::getTargetSubDirPath
std::optional< std::string > getTargetSubDirPath(StringRef BaseDir) const
Find the target-specific subdirectory for the current target triple under BaseDir,...
Definition: ToolChain.cpp:848
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:969
clang::driver::ToolChain::getCompilerRT
virtual std::string getCompilerRT(const llvm::opt::ArgList &Args, StringRef Component, FileType Type=ToolChain::FT_Static) const
Definition: ToolChain.cpp:766
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:1404
clang::driver::ToolChain::getTripleString
std::string getTripleString() const
Definition: ToolChain.h:277
clang::driver::ToolChain::GetCXXStdlibType
virtual CXXStdlibType GetCXXStdlibType(const llvm::opt::ArgList &Args) const
Definition: ToolChain.cpp:1251
clang::driver::ToolChain::SelectedMultilibs
llvm::SmallVector< Multilib > SelectedMultilibs
Definition: ToolChain.h:201
clang::driver::ToolChain::getTool
virtual Tool * getTool(Action::ActionClass AC) const
Definition: ToolChain.cpp:621
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:368
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:3435
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::print
void print(raw_ostream &OS) const
Print information about the detected GCC installation.
Definition: Gnu.cpp:2312
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:2326
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::init
void init(const llvm::Triple &TargetTriple, const llvm::opt::ArgList &Args)
Initialize a GCCInstallationDetector from the driver.
Definition: Gnu.cpp:2173
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::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:3391
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:3110
clang::driver::toolchains::Generic_GCC::addGCCLibStdCxxIncludePaths
bool addGCCLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, StringRef DebianMultiarch) const
Definition: Gnu.cpp:3321
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:3095
clang::driver::toolchains::Generic_GCC::getTool
Tool * getTool(Action::ActionClass AC) const override
Definition: Gnu.cpp:3017
clang::driver::toolchains::Generic_GCC::Generic_GCC
Generic_GCC(const Driver &D, const llvm::Triple &Triple, const llvm::opt::ArgList &Args)
Definition: Gnu.cpp:3007
clang::driver::toolchains::Generic_GCC::GCCInstallation
GCCInstallationDetector GCCInstallation
Definition: Gnu.h:289
clang::driver::toolchains::Generic_GCC::SYCLInstallation
LazyDetector< SYCLInstallationDetector > SYCLInstallation
Definition: Gnu.h:292
clang::driver::toolchains::Generic_GCC::AddMultilibIncludeArgs
void AddMultilibIncludeArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Definition: Gnu.cpp:3191
clang::driver::toolchains::Generic_GCC::IsIntegratedAssemblerDefault
bool IsIntegratedAssemblerDefault() const override
IsIntegratedAssemblerDefault - Does this tool chain enable -integrated-as by default.
Definition: Gnu.cpp:3084
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:3210
clang::driver::toolchains::Generic_GCC::buildLinker
Tool * buildLinker() const override
Definition: Gnu.cpp:3036
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:3080
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:3076
clang::driver::toolchains::Generic_GCC::printVerboseInfo
void printVerboseInfo(raw_ostream &OS) const override
Dispatch to the specific toolchain for verbose printing.
Definition: Gnu.cpp:3038
clang::driver::toolchains::Generic_GCC::~Generic_GCC
~Generic_GCC() override
Definition: Gnu.cpp:3015
clang::driver::toolchains::Generic_GCC::addSYCLIncludeArgs
void addSYCLIncludeArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const override
Add arguments to use system-specific SYCL includes.
Definition: Gnu.cpp:3227
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:3176
clang::driver::toolchains::Generic_GCC::buildAssembler
Tool * buildAssembler() const override
Definition: Gnu.cpp:3032
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:3046
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:3287
clang::driver::toolchains::Generic_GCC::isPICDefault
bool isPICDefault() const override
Test whether this toolchain defaults to PIC.
Definition: Gnu.cpp:3064
clang::driver::toolchains::Generic_GCC::addLibCxxIncludePaths
virtual void addLibCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Definition: Gnu.cpp:3233
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:3382
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:69
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:191
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:219
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:186
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:682
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:355
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:311
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::arm::isARMBigEndian
bool isARMBigEndian(const llvm::Triple &Triple, 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:23
clang::driver::tools::riscv::getRISCVArch
std::string getRISCVArch(const llvm::opt::ArgList &Args, const llvm::Triple &Triple)
Definition: RISCV.cpp:249
clang::driver::tools::riscv::getRISCVABI
StringRef getRISCVABI(const llvm::opt::ArgList &Args, const llvm::Triple &Triple)
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, const llvm::Triple &T)
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::addHIPRuntimeLibArgs
void addHIPRuntimeLibArgs(const ToolChain &TC, Compilation &C, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs)
Definition: CommonArgs.cpp:2878
clang::driver::tools::addMultilibFlag
void addMultilibFlag(bool Enabled, const StringRef Flag, Multilib::flags_list &Flags)
Flag must be a flag accepted by the driver.
Definition: CommonArgs.cpp:2345
clang::driver::tools::linkXRayRuntimeDeps
void linkXRayRuntimeDeps(const ToolChain &TC, const llvm::opt::ArgList &Args, 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::linkSanitizerRuntimeDeps
void linkSanitizerRuntimeDeps(const ToolChain &TC, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs)
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::addPathIfExists
void addPathIfExists(const Driver &D, const Twine &Path, ToolChain::path_list &Paths)
Definition: CommonArgs.cpp:345
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:532
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::addOpenMPRuntime
bool addOpenMPRuntime(const Compilation &C, 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::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:2150
clang::driver::tools::addFortranRuntimeLibs
void addFortranRuntimeLibs(const ToolChain &TC, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs)
Adds Fortran runtime libraries to CmdArgs.
clang::driver::types::isLLVMIR
bool isLLVMIR(ID Id)
Is this LLVM IR.
Definition: Types.cpp:256
clang::driver::types::getTypeName
const char * getTypeName(ID Id)
getTypeName - Return the name of the type for Id.
Definition: Types.cpp:49
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:102
clang::driver::findMIPSMultilibs
bool findMIPSMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const llvm::opt::ArgList &Args, DetectedMultilibs &Result)
clang
The JSON file list parser is used to communicate input to InstallAPI.
Definition: CalledOnceCheck.h:17
clang::ObjCSubstitutionContext::Result
@ Result
The result type of a method or function.
clang::T
const FunctionProtoType * T
Definition: RecursiveASTVisitor.h:1365
clang::driver::DetectedMultilibs::Multilibs
MultilibSet Multilibs
The set of multilibs that the detected installation supports.
Definition: Gnu.h:25
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:32
clang::driver::DetectedMultilibs::SelectedMultilibs
llvm::SmallVector< Multilib > SelectedMultilibs
The multilibs appropriate for the given flags.
Definition: Gnu.h:28
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:163
clang::driver::toolchains::Generic_GCC::GCCVersion::MajorStr
std::string MajorStr
The text of the parsed major, and major+minor versions.
Definition: Gnu.h:171
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:2031
clang::driver::toolchains::Generic_GCC::GCCVersion::MinorStr
std::string MinorStr
Definition: Gnu.h:171
clang::driver::toolchains::Generic_GCC::GCCVersion::Minor
int Minor
Definition: Gnu.h:168
clang::driver::toolchains::Generic_GCC::GCCVersion::Patch
int Patch
Definition: Gnu.h:168
clang::driver::toolchains::Generic_GCC::GCCVersion::PatchSuffix
std::string PatchSuffix
Any textual suffix on the patch number.
Definition: Gnu.h:174
clang::driver::toolchains::Generic_GCC::GCCVersion::Major
int Major
The parsed major, minor, and patch numbers.
Definition: Gnu.h:168
clang::driver::toolchains::Generic_GCC::GCCVersion::Text
std::string Text
The unparsed text of the version.
Definition: Gnu.h:165
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:2075
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