clang 18.0.0git
Gnu.cpp
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1//===--- Gnu.cpp - Gnu Tool and ToolChain Implementations -------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "Gnu.h"
10#include "Arch/ARM.h"
11#include "Arch/CSKY.h"
12#include "Arch/LoongArch.h"
13#include "Arch/Mips.h"
14#include "Arch/PPC.h"
15#include "Arch/RISCV.h"
16#include "Arch/Sparc.h"
17#include "Arch/SystemZ.h"
18#include "CommonArgs.h"
19#include "Linux.h"
20#include "clang/Config/config.h" // for GCC_INSTALL_PREFIX
21#include "clang/Driver/Compilation.h"
22#include "clang/Driver/Driver.h"
23#include "clang/Driver/DriverDiagnostic.h"
24#include "clang/Driver/MultilibBuilder.h"
25#include "clang/Driver/Options.h"
26#include "clang/Driver/Tool.h"
27#include "clang/Driver/ToolChain.h"
28#include "llvm/ADT/StringSet.h"
29#include "llvm/ADT/Twine.h"
30#include "llvm/Option/ArgList.h"
31#include "llvm/Support/CodeGen.h"
32#include "llvm/Support/Path.h"
33#include "llvm/Support/VirtualFileSystem.h"
34#include "llvm/TargetParser/TargetParser.h"
35#include <system_error>
36
37using namespace clang::driver;
38using namespace clang::driver::toolchains;
39using namespace clang;
40using namespace llvm::opt;
41
42using tools::addMultilibFlag;
43using tools::addPathIfExists;
44
45static bool forwardToGCC(const Option &O) {
46 // LinkerInput options have been forwarded. Don't duplicate.
47 if (O.hasFlag(options::LinkerInput))
48 return false;
49 return O.matches(options::OPT_Link_Group) || O.hasFlag(options::LinkOption);
50}
51
52// Switch CPU names not recognized by GNU assembler to a close CPU that it does
53// recognize, instead of a lower march from being picked in the absence of a cpu
54// flag.
55static void normalizeCPUNamesForAssembler(const ArgList &Args,
56 ArgStringList &CmdArgs) {
57 if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) {
58 StringRef CPUArg(A->getValue());
59 if (CPUArg.equals_insensitive("krait"))
60 CmdArgs.push_back("-mcpu=cortex-a15");
61 else if (CPUArg.equals_insensitive("kryo"))
62 CmdArgs.push_back("-mcpu=cortex-a57");
63 else
64 Args.AddLastArg(CmdArgs, options::OPT_mcpu_EQ);
65 }
66}
67
68void tools::gcc::Common::ConstructJob(Compilation &C, const JobAction &JA,
69 const InputInfo &Output,
70 const InputInfoList &Inputs,
71 const ArgList &Args,
72 const char *LinkingOutput) const {
73 const Driver &D = getToolChain().getDriver();
74 ArgStringList CmdArgs;
75
76 for (const auto &A : Args) {
77 if (forwardToGCC(A->getOption())) {
78 // It is unfortunate that we have to claim here, as this means
79 // we will basically never report anything interesting for
80 // platforms using a generic gcc, even if we are just using gcc
81 // to get to the assembler.
82 A->claim();
83
84 A->render(Args, CmdArgs);
85 }
86 }
87
88 RenderExtraToolArgs(JA, CmdArgs);
89
90 // If using a driver, force the arch.
91 if (getToolChain().getTriple().isOSDarwin()) {
92 CmdArgs.push_back("-arch");
93 CmdArgs.push_back(
94 Args.MakeArgString(getToolChain().getDefaultUniversalArchName()));
95 }
96
97 // Try to force gcc to match the tool chain we want, if we recognize
98 // the arch.
99 //
100 // FIXME: The triple class should directly provide the information we want
101 // here.
102 switch (getToolChain().getArch()) {
103 default:
104 break;
105 case llvm::Triple::x86:
106 case llvm::Triple::ppc:
107 case llvm::Triple::ppcle:
108 CmdArgs.push_back("-m32");
109 break;
110 case llvm::Triple::x86_64:
111 case llvm::Triple::ppc64:
112 case llvm::Triple::ppc64le:
113 CmdArgs.push_back("-m64");
114 break;
115 case llvm::Triple::sparcel:
116 CmdArgs.push_back("-EL");
117 break;
118 }
119
120 assert((Output.isFilename() || Output.isNothing()) && "Invalid output.");
121 if (Output.isFilename()) {
122 CmdArgs.push_back("-o");
123 CmdArgs.push_back(Output.getFilename());
124 } else {
125 CmdArgs.push_back("-fsyntax-only");
126 }
127
128 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
129
130 // Only pass -x if gcc will understand it; otherwise hope gcc
131 // understands the suffix correctly. The main use case this would go
132 // wrong in is for linker inputs if they happened to have an odd
133 // suffix; really the only way to get this to happen is a command
134 // like '-x foobar a.c' which will treat a.c like a linker input.
135 //
136 // FIXME: For the linker case specifically, can we safely convert
137 // inputs into '-Wl,' options?
138 for (const auto &II : Inputs) {
139 // Don't try to pass LLVM or AST inputs to a generic gcc.
140 if (types::isLLVMIR(II.getType()))
141 D.Diag(clang::diag::err_drv_no_linker_llvm_support)
142 << getToolChain().getTripleString();
143 else if (II.getType() == types::TY_AST)
144 D.Diag(diag::err_drv_no_ast_support) << getToolChain().getTripleString();
145 else if (II.getType() == types::TY_ModuleFile)
146 D.Diag(diag::err_drv_no_module_support)
147 << getToolChain().getTripleString();
148
149 if (types::canTypeBeUserSpecified(II.getType())) {
150 CmdArgs.push_back("-x");
151 CmdArgs.push_back(types::getTypeName(II.getType()));
152 }
153
154 if (II.isFilename())
155 CmdArgs.push_back(II.getFilename());
156 else {
157 const Arg &A = II.getInputArg();
158
159 // Reverse translate some rewritten options.
160 if (A.getOption().matches(options::OPT_Z_reserved_lib_stdcxx)) {
161 CmdArgs.push_back("-lstdc++");
162 continue;
163 }
164
165 // Don't render as input, we need gcc to do the translations.
166 A.render(Args, CmdArgs);
167 }
168 }
169
170 const std::string &customGCCName = D.getCCCGenericGCCName();
171 const char *GCCName;
172 if (!customGCCName.empty())
173 GCCName = customGCCName.c_str();
174 else if (D.CCCIsCXX()) {
175 GCCName = "g++";
176 } else
177 GCCName = "gcc";
178
179 const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath(GCCName));
180 C.addCommand(std::make_unique<Command>(JA, *this,
181 ResponseFileSupport::AtFileCurCP(),
182 Exec, CmdArgs, Inputs, Output));
183}
184
185void tools::gcc::Preprocessor::RenderExtraToolArgs(
186 const JobAction &JA, ArgStringList &CmdArgs) const {
187 CmdArgs.push_back("-E");
188}
189
190void tools::gcc::Compiler::RenderExtraToolArgs(const JobAction &JA,
191 ArgStringList &CmdArgs) const {
192 const Driver &D = getToolChain().getDriver();
193
194 switch (JA.getType()) {
195 // If -flto, etc. are present then make sure not to force assembly output.
196 case types::TY_LLVM_IR:
197 case types::TY_LTO_IR:
198 case types::TY_LLVM_BC:
199 case types::TY_LTO_BC:
200 CmdArgs.push_back("-c");
201 break;
202 // We assume we've got an "integrated" assembler in that gcc will produce an
203 // object file itself.
204 case types::TY_Object:
205 CmdArgs.push_back("-c");
206 break;
207 case types::TY_PP_Asm:
208 CmdArgs.push_back("-S");
209 break;
210 case types::TY_Nothing:
211 CmdArgs.push_back("-fsyntax-only");
212 break;
213 default:
214 D.Diag(diag::err_drv_invalid_gcc_output_type) << getTypeName(JA.getType());
215 }
216}
217
218void tools::gcc::Linker::RenderExtraToolArgs(const JobAction &JA,
219 ArgStringList &CmdArgs) const {
220 // The types are (hopefully) good enough.
221}
222
223static const char *getLDMOption(const llvm::Triple &T, const ArgList &Args) {
224 switch (T.getArch()) {
225 case llvm::Triple::x86:
226 if (T.isOSIAMCU())
227 return "elf_iamcu";
228 return "elf_i386";
229 case llvm::Triple::aarch64:
230 return "aarch64linux";
231 case llvm::Triple::aarch64_be:
232 return "aarch64linuxb";
233 case llvm::Triple::arm:
234 case llvm::Triple::thumb:
235 case llvm::Triple::armeb:
236 case llvm::Triple::thumbeb:
237 return tools::arm::isARMBigEndian(T, Args) ? "armelfb_linux_eabi"
238 : "armelf_linux_eabi";
239 case llvm::Triple::m68k:
240 return "m68kelf";
241 case llvm::Triple::ppc:
242 if (T.isOSLinux())
243 return "elf32ppclinux";
244 return "elf32ppc";
245 case llvm::Triple::ppcle:
246 if (T.isOSLinux())
247 return "elf32lppclinux";
248 return "elf32lppc";
249 case llvm::Triple::ppc64:
250 return "elf64ppc";
251 case llvm::Triple::ppc64le:
252 return "elf64lppc";
253 case llvm::Triple::riscv32:
254 return "elf32lriscv";
255 case llvm::Triple::riscv64:
256 return "elf64lriscv";
257 case llvm::Triple::sparc:
258 case llvm::Triple::sparcel:
259 return "elf32_sparc";
260 case llvm::Triple::sparcv9:
261 return "elf64_sparc";
262 case llvm::Triple::loongarch32:
263 return "elf32loongarch";
264 case llvm::Triple::loongarch64:
265 return "elf64loongarch";
266 case llvm::Triple::mips:
267 return "elf32btsmip";
268 case llvm::Triple::mipsel:
269 return "elf32ltsmip";
270 case llvm::Triple::mips64:
271 if (tools::mips::hasMipsAbiArg(Args, "n32") ||
272 T.getEnvironment() == llvm::Triple::GNUABIN32)
273 return "elf32btsmipn32";
274 return "elf64btsmip";
275 case llvm::Triple::mips64el:
276 if (tools::mips::hasMipsAbiArg(Args, "n32") ||
277 T.getEnvironment() == llvm::Triple::GNUABIN32)
278 return "elf32ltsmipn32";
279 return "elf64ltsmip";
280 case llvm::Triple::systemz:
281 return "elf64_s390";
282 case llvm::Triple::x86_64:
283 if (T.isX32())
284 return "elf32_x86_64";
285 return "elf_x86_64";
286 case llvm::Triple::ve:
287 return "elf64ve";
288 case llvm::Triple::csky:
289 return "cskyelf_linux";
290 default:
291 return nullptr;
292 }
293}
294
295static bool getStaticPIE(const ArgList &Args, const ToolChain &TC) {
296 bool HasStaticPIE = Args.hasArg(options::OPT_static_pie);
297 if (HasStaticPIE && Args.hasArg(options::OPT_no_pie)) {
298 const Driver &D = TC.getDriver();
299 const llvm::opt::OptTable &Opts = D.getOpts();
300 StringRef StaticPIEName = Opts.getOptionName(options::OPT_static_pie);
301 StringRef NoPIEName = Opts.getOptionName(options::OPT_nopie);
302 D.Diag(diag::err_drv_cannot_mix_options) << StaticPIEName << NoPIEName;
303 }
304 return HasStaticPIE;
305}
306
307static bool getStatic(const ArgList &Args) {
308 return Args.hasArg(options::OPT_static) &&
309 !Args.hasArg(options::OPT_static_pie);
310}
311
312void tools::gnutools::StaticLibTool::ConstructJob(
313 Compilation &C, const JobAction &JA, const InputInfo &Output,
314 const InputInfoList &Inputs, const ArgList &Args,
315 const char *LinkingOutput) const {
316 const Driver &D = getToolChain().getDriver();
317
318 // Silence warning for "clang -g foo.o -o foo"
319 Args.ClaimAllArgs(options::OPT_g_Group);
320 // and "clang -emit-llvm foo.o -o foo"
321 Args.ClaimAllArgs(options::OPT_emit_llvm);
322 // and for "clang -w foo.o -o foo". Other warning options are already
323 // handled somewhere else.
324 Args.ClaimAllArgs(options::OPT_w);
325 // Silence warnings when linking C code with a C++ '-stdlib' argument.
326 Args.ClaimAllArgs(options::OPT_stdlib_EQ);
327
328 // ar tool command "llvm-ar <options> <output_file> <input_files>".
329 ArgStringList CmdArgs;
330 // Create and insert file members with a deterministic index.
331 CmdArgs.push_back("rcsD");
332 CmdArgs.push_back(Output.getFilename());
333
334 for (const auto &II : Inputs) {
335 if (II.isFilename()) {
336 CmdArgs.push_back(II.getFilename());
337 }
338 }
339
340 // Delete old output archive file if it already exists before generating a new
341 // archive file.
342 auto OutputFileName = Output.getFilename();
343 if (Output.isFilename() && llvm::sys::fs::exists(OutputFileName)) {
344 if (std::error_code EC = llvm::sys::fs::remove(OutputFileName)) {
345 D.Diag(diag::err_drv_unable_to_remove_file) << EC.message();
346 return;
347 }
348 }
349
350 const char *Exec = Args.MakeArgString(getToolChain().GetStaticLibToolPath());
351 C.addCommand(std::make_unique<Command>(JA, *this,
352 ResponseFileSupport::AtFileCurCP(),
353 Exec, CmdArgs, Inputs, Output));
354}
355
356void tools::gnutools::Linker::ConstructJob(Compilation &C, const JobAction &JA,
357 const InputInfo &Output,
358 const InputInfoList &Inputs,
359 const ArgList &Args,
360 const char *LinkingOutput) const {
361 // FIXME: The Linker class constructor takes a ToolChain and not a
362 // Generic_ELF, so the static_cast might return a reference to a invalid
363 // instance (see PR45061). Ideally, the Linker constructor needs to take a
364 // Generic_ELF instead.
365 const auto &ToolChain = static_cast<const Generic_ELF &>(getToolChain());
366 const Driver &D = ToolChain.getDriver();
367
368 const llvm::Triple &Triple = getToolChain().getEffectiveTriple();
369
370 const llvm::Triple::ArchType Arch = ToolChain.getArch();
371 const bool isOHOSFamily = ToolChain.getTriple().isOHOSFamily();
372 const bool isAndroid = ToolChain.getTriple().isAndroid();
373 const bool IsIAMCU = ToolChain.getTriple().isOSIAMCU();
374 const bool IsVE = ToolChain.getTriple().isVE();
375 const bool IsStaticPIE = getStaticPIE(Args, ToolChain);
376 const bool IsStatic = getStatic(Args);
377 const bool HasCRTBeginEndFiles =
378 ToolChain.getTriple().hasEnvironment() ||
379 (ToolChain.getTriple().getVendor() != llvm::Triple::MipsTechnologies);
380
381 ArgStringList CmdArgs;
382
383 // Silence warning for "clang -g foo.o -o foo"
384 Args.ClaimAllArgs(options::OPT_g_Group);
385 // and "clang -emit-llvm foo.o -o foo"
386 Args.ClaimAllArgs(options::OPT_emit_llvm);
387 // and for "clang -w foo.o -o foo". Other warning options are already
388 // handled somewhere else.
389 Args.ClaimAllArgs(options::OPT_w);
390
391 if (!D.SysRoot.empty())
392 CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot));
393
394 if (Args.hasArg(options::OPT_s))
395 CmdArgs.push_back("-s");
396
397 if (Triple.isARM() || Triple.isThumb()) {
398 bool IsBigEndian = arm::isARMBigEndian(Triple, Args);
399 if (IsBigEndian)
400 arm::appendBE8LinkFlag(Args, CmdArgs, Triple);
401 CmdArgs.push_back(IsBigEndian ? "-EB" : "-EL");
402 } else if (Triple.isAArch64()) {
403 CmdArgs.push_back(Arch == llvm::Triple::aarch64_be ? "-EB" : "-EL");
404 }
405
406 // Most Android ARM64 targets should enable the linker fix for erratum
407 // 843419. Only non-Cortex-A53 devices are allowed to skip this flag.
408 if (Arch == llvm::Triple::aarch64 && (isAndroid || isOHOSFamily)) {
409 std::string CPU = getCPUName(D, Args, Triple);
410 if (CPU.empty() || CPU == "generic" || CPU == "cortex-a53")
411 CmdArgs.push_back("--fix-cortex-a53-843419");
412 }
413
414 ToolChain.addExtraOpts(CmdArgs);
415
416 CmdArgs.push_back("--eh-frame-hdr");
417
418 if (const char *LDMOption = getLDMOption(ToolChain.getTriple(), Args)) {
419 CmdArgs.push_back("-m");
420 CmdArgs.push_back(LDMOption);
421 } else {
422 D.Diag(diag::err_target_unknown_triple) << Triple.str();
423 return;
424 }
425 if (Triple.isRISCV())
426 CmdArgs.push_back("-X");
427
428 const bool IsShared = Args.hasArg(options::OPT_shared);
429 if (IsShared)
430 CmdArgs.push_back("-shared");
431 bool IsPIE = false;
432 if (IsStaticPIE) {
433 CmdArgs.push_back("-static");
434 CmdArgs.push_back("-pie");
435 CmdArgs.push_back("--no-dynamic-linker");
436 CmdArgs.push_back("-z");
437 CmdArgs.push_back("text");
438 } else if (IsStatic) {
439 CmdArgs.push_back("-static");
440 } else if (!Args.hasArg(options::OPT_r)) {
441 if (Args.hasArg(options::OPT_rdynamic))
442 CmdArgs.push_back("-export-dynamic");
443 if (!IsShared) {
444 IsPIE = Args.hasFlag(options::OPT_pie, options::OPT_no_pie,
445 ToolChain.isPIEDefault(Args));
446 if (IsPIE)
447 CmdArgs.push_back("-pie");
448 CmdArgs.push_back("-dynamic-linker");
449 CmdArgs.push_back(Args.MakeArgString(Twine(D.DyldPrefix) +
450 ToolChain.getDynamicLinker(Args)));
451 }
452 }
453
454 CmdArgs.push_back("-o");
455 CmdArgs.push_back(Output.getFilename());
456
457 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles,
458 options::OPT_r)) {
459 if (!isAndroid && !IsIAMCU) {
460 const char *crt1 = nullptr;
461 if (!Args.hasArg(options::OPT_shared)) {
462 if (Args.hasArg(options::OPT_pg))
463 crt1 = "gcrt1.o";
464 else if (IsPIE)
465 crt1 = "Scrt1.o";
466 else if (IsStaticPIE)
467 crt1 = "rcrt1.o";
468 else
469 crt1 = "crt1.o";
470 }
471 if (crt1)
472 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crt1)));
473
474 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o")));
475 }
476
477 if (IsVE) {
478 CmdArgs.push_back("-z");
479 CmdArgs.push_back("max-page-size=0x4000000");
480 }
481
482 if (IsIAMCU)
483 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt0.o")));
484 else if (HasCRTBeginEndFiles) {
485 std::string P;
486 if (ToolChain.GetRuntimeLibType(Args) == ToolChain::RLT_CompilerRT &&
487 !isAndroid) {
488 std::string crtbegin = ToolChain.getCompilerRT(Args, "crtbegin",
489 ToolChain::FT_Object);
490 if (ToolChain.getVFS().exists(crtbegin))
491 P = crtbegin;
492 }
493 if (P.empty()) {
494 const char *crtbegin;
495 if (Args.hasArg(options::OPT_shared))
496 crtbegin = isAndroid ? "crtbegin_so.o" : "crtbeginS.o";
497 else if (IsStatic)
498 crtbegin = isAndroid ? "crtbegin_static.o" : "crtbeginT.o";
499 else if (IsPIE || IsStaticPIE)
500 crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbeginS.o";
501 else
502 crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbegin.o";
503 P = ToolChain.GetFilePath(crtbegin);
504 }
505 CmdArgs.push_back(Args.MakeArgString(P));
506 }
507
508 // Add crtfastmath.o if available and fast math is enabled.
509 ToolChain.addFastMathRuntimeIfAvailable(Args, CmdArgs);
510 }
511
512 Args.addAllArgs(CmdArgs, {options::OPT_L, options::OPT_u});
513
514 ToolChain.AddFilePathLibArgs(Args, CmdArgs);
515
516 if (D.isUsingLTO()) {
517 assert(!Inputs.empty() && "Must have at least one input.");
518 // Find the first filename InputInfo object.
519 auto Input = llvm::find_if(
520 Inputs, [](const InputInfo &II) -> bool { return II.isFilename(); });
521 if (Input == Inputs.end())
522 // For a very rare case, all of the inputs to the linker are
523 // InputArg. If that happens, just use the first InputInfo.
524 Input = Inputs.begin();
525
526 addLTOOptions(ToolChain, Args, CmdArgs, Output, *Input,
527 D.getLTOMode() == LTOK_Thin);
528 }
529
530 if (Args.hasArg(options::OPT_Z_Xlinker__no_demangle))
531 CmdArgs.push_back("--no-demangle");
532
533 bool NeedsSanitizerDeps = addSanitizerRuntimes(ToolChain, Args, CmdArgs);
534 bool NeedsXRayDeps = addXRayRuntime(ToolChain, Args, CmdArgs);
535 addLinkerCompressDebugSectionsOption(ToolChain, Args, CmdArgs);
536 AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA);
537
538 addHIPRuntimeLibArgs(ToolChain, C, Args, CmdArgs);
539
540 // The profile runtime also needs access to system libraries.
541 getToolChain().addProfileRTLibs(Args, CmdArgs);
542
543 if (D.CCCIsCXX() &&
544 !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs,
545 options::OPT_r)) {
546 if (ToolChain.ShouldLinkCXXStdlib(Args)) {
547 bool OnlyLibstdcxxStatic = Args.hasArg(options::OPT_static_libstdcxx) &&
548 !Args.hasArg(options::OPT_static);
549 if (OnlyLibstdcxxStatic)
550 CmdArgs.push_back("-Bstatic");
551 ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs);
552 if (OnlyLibstdcxxStatic)
553 CmdArgs.push_back("-Bdynamic");
554 }
555 CmdArgs.push_back("-lm");
556 }
557
558 // Silence warnings when linking C code with a C++ '-stdlib' argument.
559 Args.ClaimAllArgs(options::OPT_stdlib_EQ);
560
561 // Additional linker set-up and flags for Fortran. This is required in order
562 // to generate executables. As Fortran runtime depends on the C runtime,
563 // these dependencies need to be listed before the C runtime below (i.e.
564 // AddRunTimeLibs).
565 if (D.IsFlangMode()) {
566 addFortranRuntimeLibraryPath(ToolChain, Args, CmdArgs);
567 addFortranRuntimeLibs(ToolChain, Args, CmdArgs);
568 CmdArgs.push_back("-lm");
569 }
570
571 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_r)) {
572 if (!Args.hasArg(options::OPT_nodefaultlibs)) {
573 if (IsStatic || IsStaticPIE)
574 CmdArgs.push_back("--start-group");
575
576 if (NeedsSanitizerDeps)
577 linkSanitizerRuntimeDeps(ToolChain, Args, CmdArgs);
578
579 if (NeedsXRayDeps)
580 linkXRayRuntimeDeps(ToolChain, Args, CmdArgs);
581
582 bool WantPthread = Args.hasArg(options::OPT_pthread) ||
583 Args.hasArg(options::OPT_pthreads);
584
585 // Use the static OpenMP runtime with -static-openmp
586 bool StaticOpenMP = Args.hasArg(options::OPT_static_openmp) &&
587 !Args.hasArg(options::OPT_static);
588
589 // FIXME: Only pass GompNeedsRT = true for platforms with libgomp that
590 // require librt. Most modern Linux platforms do, but some may not.
591 if (addOpenMPRuntime(CmdArgs, ToolChain, Args, StaticOpenMP,
592 JA.isHostOffloading(Action::OFK_OpenMP),
593 /* GompNeedsRT= */ true))
594 // OpenMP runtimes implies pthreads when using the GNU toolchain.
595 // FIXME: Does this really make sense for all GNU toolchains?
596 WantPthread = true;
597
598 AddRunTimeLibs(ToolChain, D, CmdArgs, Args);
599
600 // LLVM support for atomics on 32-bit SPARC V8+ is incomplete, so
601 // forcibly link with libatomic as a workaround.
602 // TODO: Issue #41880 and D118021.
603 if (getToolChain().getTriple().getArch() == llvm::Triple::sparc) {
604 CmdArgs.push_back("--push-state");
605 CmdArgs.push_back("--as-needed");
606 CmdArgs.push_back("-latomic");
607 CmdArgs.push_back("--pop-state");
608 }
609
610 // We don't need libpthread neither for bionic (Android) nor for musl,
611 // (used by OHOS as runtime library).
612 if (WantPthread && !isAndroid && !isOHOSFamily)
613 CmdArgs.push_back("-lpthread");
614
615 if (Args.hasArg(options::OPT_fsplit_stack))
616 CmdArgs.push_back("--wrap=pthread_create");
617
618 if (!Args.hasArg(options::OPT_nolibc))
619 CmdArgs.push_back("-lc");
620
621 // Add IAMCU specific libs, if needed.
622 if (IsIAMCU)
623 CmdArgs.push_back("-lgloss");
624
625 if (IsStatic || IsStaticPIE)
626 CmdArgs.push_back("--end-group");
627 else
628 AddRunTimeLibs(ToolChain, D, CmdArgs, Args);
629
630 // Add IAMCU specific libs (outside the group), if needed.
631 if (IsIAMCU) {
632 CmdArgs.push_back("--as-needed");
633 CmdArgs.push_back("-lsoftfp");
634 CmdArgs.push_back("--no-as-needed");
635 }
636 }
637
638 if (!Args.hasArg(options::OPT_nostartfiles) && !IsIAMCU) {
639 if (HasCRTBeginEndFiles) {
640 std::string P;
641 if (ToolChain.GetRuntimeLibType(Args) == ToolChain::RLT_CompilerRT &&
642 !isAndroid) {
643 std::string crtend = ToolChain.getCompilerRT(Args, "crtend",
644 ToolChain::FT_Object);
645 if (ToolChain.getVFS().exists(crtend))
646 P = crtend;
647 }
648 if (P.empty()) {
649 const char *crtend;
650 if (Args.hasArg(options::OPT_shared))
651 crtend = isAndroid ? "crtend_so.o" : "crtendS.o";
652 else if (IsPIE || IsStaticPIE)
653 crtend = isAndroid ? "crtend_android.o" : "crtendS.o";
654 else
655 crtend = isAndroid ? "crtend_android.o" : "crtend.o";
656 P = ToolChain.GetFilePath(crtend);
657 }
658 CmdArgs.push_back(Args.MakeArgString(P));
659 }
660 if (!isAndroid)
661 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o")));
662 }
663 }
664
665 Args.AddAllArgs(CmdArgs, options::OPT_T);
666
667 const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath());
668 C.addCommand(std::make_unique<Command>(JA, *this,
669 ResponseFileSupport::AtFileCurCP(),
670 Exec, CmdArgs, Inputs, Output));
671}
672
673void tools::gnutools::Assembler::ConstructJob(Compilation &C,
674 const JobAction &JA,
675 const InputInfo &Output,
676 const InputInfoList &Inputs,
677 const ArgList &Args,
678 const char *LinkingOutput) const {
679 const auto &D = getToolChain().getDriver();
680
681 claimNoWarnArgs(Args);
682
683 ArgStringList CmdArgs;
684
685 llvm::Reloc::Model RelocationModel;
686 unsigned PICLevel;
687 bool IsPIE;
688 const char *DefaultAssembler = "as";
689 // Enforce GNU as on Solaris; the native assembler's input syntax isn't fully
690 // compatible.
691 if (getToolChain().getTriple().isOSSolaris())
692 DefaultAssembler = "gas";
693 std::tie(RelocationModel, PICLevel, IsPIE) =
694 ParsePICArgs(getToolChain(), Args);
695
696 if (const Arg *A = Args.getLastArg(options::OPT_gz, options::OPT_gz_EQ)) {
697 if (A->getOption().getID() == options::OPT_gz) {
698 CmdArgs.push_back("--compress-debug-sections");
699 } else {
700 StringRef Value = A->getValue();
701 if (Value == "none" || Value == "zlib" || Value == "zstd") {
702 CmdArgs.push_back(
703 Args.MakeArgString("--compress-debug-sections=" + Twine(Value)));
704 } else {
705 D.Diag(diag::err_drv_unsupported_option_argument)
706 << A->getSpelling() << Value;
707 }
708 }
709 }
710
711 switch (getToolChain().getArch()) {
712 default:
713 break;
714 // Add --32/--64 to make sure we get the format we want.
715 // This is incomplete
716 case llvm::Triple::x86:
717 CmdArgs.push_back("--32");
718 break;
719 case llvm::Triple::x86_64:
720 if (getToolChain().getTriple().isX32())
721 CmdArgs.push_back("--x32");
722 else
723 CmdArgs.push_back("--64");
724 break;
725 case llvm::Triple::ppc: {
726 CmdArgs.push_back("-a32");
727 CmdArgs.push_back("-mppc");
728 CmdArgs.push_back("-mbig-endian");
729 CmdArgs.push_back(ppc::getPPCAsmModeForCPU(
730 getCPUName(D, Args, getToolChain().getTriple())));
731 break;
732 }
733 case llvm::Triple::ppcle: {
734 CmdArgs.push_back("-a32");
735 CmdArgs.push_back("-mppc");
736 CmdArgs.push_back("-mlittle-endian");
737 CmdArgs.push_back(ppc::getPPCAsmModeForCPU(
738 getCPUName(D, Args, getToolChain().getTriple())));
739 break;
740 }
741 case llvm::Triple::ppc64: {
742 CmdArgs.push_back("-a64");
743 CmdArgs.push_back("-mppc64");
744 CmdArgs.push_back("-mbig-endian");
745 CmdArgs.push_back(ppc::getPPCAsmModeForCPU(
746 getCPUName(D, Args, getToolChain().getTriple())));
747 break;
748 }
749 case llvm::Triple::ppc64le: {
750 CmdArgs.push_back("-a64");
751 CmdArgs.push_back("-mppc64");
752 CmdArgs.push_back("-mlittle-endian");
753 CmdArgs.push_back(ppc::getPPCAsmModeForCPU(
754 getCPUName(D, Args, getToolChain().getTriple())));
755 break;
756 }
757 case llvm::Triple::riscv32:
758 case llvm::Triple::riscv64: {
759 StringRef ABIName = riscv::getRISCVABI(Args, getToolChain().getTriple());
760 CmdArgs.push_back("-mabi");
761 CmdArgs.push_back(ABIName.data());
762 StringRef MArchName = riscv::getRISCVArch(Args, getToolChain().getTriple());
763 CmdArgs.push_back("-march");
764 CmdArgs.push_back(MArchName.data());
765 if (!Args.hasFlag(options::OPT_mrelax, options::OPT_mno_relax, true))
766 Args.addOptOutFlag(CmdArgs, options::OPT_mrelax, options::OPT_mno_relax);
767 break;
768 }
769 case llvm::Triple::sparc:
770 case llvm::Triple::sparcel: {
771 CmdArgs.push_back("-32");
772 std::string CPU = getCPUName(D, Args, getToolChain().getTriple());
773 CmdArgs.push_back(
774 sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple()));
775 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
776 break;
777 }
778 case llvm::Triple::sparcv9: {
779 CmdArgs.push_back("-64");
780 std::string CPU = getCPUName(D, Args, getToolChain().getTriple());
781 CmdArgs.push_back(
782 sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple()));
783 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
784 break;
785 }
786 case llvm::Triple::arm:
787 case llvm::Triple::armeb:
788 case llvm::Triple::thumb:
789 case llvm::Triple::thumbeb: {
790 const llvm::Triple &Triple2 = getToolChain().getTriple();
791 CmdArgs.push_back(arm::isARMBigEndian(Triple2, Args) ? "-EB" : "-EL");
792 switch (Triple2.getSubArch()) {
793 case llvm::Triple::ARMSubArch_v7:
794 CmdArgs.push_back("-mfpu=neon");
795 break;
796 case llvm::Triple::ARMSubArch_v8:
797 CmdArgs.push_back("-mfpu=crypto-neon-fp-armv8");
798 break;
799 default:
800 break;
801 }
802
803 switch (arm::getARMFloatABI(getToolChain(), Args)) {
804 case arm::FloatABI::Invalid: llvm_unreachable("must have an ABI!");
805 case arm::FloatABI::Soft:
806 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=soft"));
807 break;
808 case arm::FloatABI::SoftFP:
809 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=softfp"));
810 break;
811 case arm::FloatABI::Hard:
812 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=hard"));
813 break;
814 }
815
816 Args.AddLastArg(CmdArgs, options::OPT_march_EQ);
817 normalizeCPUNamesForAssembler(Args, CmdArgs);
818
819 Args.AddLastArg(CmdArgs, options::OPT_mfpu_EQ);
820 // The integrated assembler doesn't implement e_flags setting behavior for
821 // -meabi=gnu (gcc -mabi={apcs-gnu,atpcs} passes -meabi=gnu to gas). For
822 // compatibility we accept but warn.
823 if (Arg *A = Args.getLastArgNoClaim(options::OPT_mabi_EQ))
824 A->ignoreTargetSpecific();
825 break;
826 }
827 case llvm::Triple::aarch64:
828 case llvm::Triple::aarch64_be: {
829 CmdArgs.push_back(
830 getToolChain().getArch() == llvm::Triple::aarch64_be ? "-EB" : "-EL");
831 Args.AddLastArg(CmdArgs, options::OPT_march_EQ);
832 normalizeCPUNamesForAssembler(Args, CmdArgs);
833
834 break;
835 }
836 // TODO: handle loongarch32.
837 case llvm::Triple::loongarch64: {
838 StringRef ABIName =
839 loongarch::getLoongArchABI(D, Args, getToolChain().getTriple());
840 CmdArgs.push_back(Args.MakeArgString("-mabi=" + ABIName));
841 break;
842 }
843 case llvm::Triple::mips:
844 case llvm::Triple::mipsel:
845 case llvm::Triple::mips64:
846 case llvm::Triple::mips64el: {
847 StringRef CPUName;
848 StringRef ABIName;
849 mips::getMipsCPUAndABI(Args, getToolChain().getTriple(), CPUName, ABIName);
850 ABIName = mips::getGnuCompatibleMipsABIName(ABIName);
851
852 CmdArgs.push_back("-march");
853 CmdArgs.push_back(CPUName.data());
854
855 CmdArgs.push_back("-mabi");
856 CmdArgs.push_back(ABIName.data());
857
858 // -mno-shared should be emitted unless -fpic, -fpie, -fPIC, -fPIE,
859 // or -mshared (not implemented) is in effect.
860 if (RelocationModel == llvm::Reloc::Static)
861 CmdArgs.push_back("-mno-shared");
862
863 // LLVM doesn't support -mplt yet and acts as if it is always given.
864 // However, -mplt has no effect with the N64 ABI.
865 if (ABIName != "64" && !Args.hasArg(options::OPT_mno_abicalls))
866 CmdArgs.push_back("-call_nonpic");
867
868 if (getToolChain().getTriple().isLittleEndian())
869 CmdArgs.push_back("-EL");
870 else
871 CmdArgs.push_back("-EB");
872
873 if (Arg *A = Args.getLastArg(options::OPT_mnan_EQ)) {
874 if (StringRef(A->getValue()) == "2008")
875 CmdArgs.push_back(Args.MakeArgString("-mnan=2008"));
876 }
877
878 // Add the last -mfp32/-mfpxx/-mfp64 or -mfpxx if it is enabled by default.
879 if (Arg *A = Args.getLastArg(options::OPT_mfp32, options::OPT_mfpxx,
880 options::OPT_mfp64)) {
881 A->claim();
882 A->render(Args, CmdArgs);
883 } else if (mips::shouldUseFPXX(
884 Args, getToolChain().getTriple(), CPUName, ABIName,
885 mips::getMipsFloatABI(getToolChain().getDriver(), Args,
886 getToolChain().getTriple())))
887 CmdArgs.push_back("-mfpxx");
888
889 // Pass on -mmips16 or -mno-mips16. However, the assembler equivalent of
890 // -mno-mips16 is actually -no-mips16.
891 if (Arg *A =
892 Args.getLastArg(options::OPT_mips16, options::OPT_mno_mips16)) {
893 if (A->getOption().matches(options::OPT_mips16)) {
894 A->claim();
895 A->render(Args, CmdArgs);
896 } else {
897 A->claim();
898 CmdArgs.push_back("-no-mips16");
899 }
900 }
901
902 Args.AddLastArg(CmdArgs, options::OPT_mmicromips,
903 options::OPT_mno_micromips);
904 Args.AddLastArg(CmdArgs, options::OPT_mdsp, options::OPT_mno_dsp);
905 Args.AddLastArg(CmdArgs, options::OPT_mdspr2, options::OPT_mno_dspr2);
906
907 if (Arg *A = Args.getLastArg(options::OPT_mmsa, options::OPT_mno_msa)) {
908 // Do not use AddLastArg because not all versions of MIPS assembler
909 // support -mmsa / -mno-msa options.
910 if (A->getOption().matches(options::OPT_mmsa))
911 CmdArgs.push_back(Args.MakeArgString("-mmsa"));
912 }
913
914 Args.AddLastArg(CmdArgs, options::OPT_mhard_float,
915 options::OPT_msoft_float);
916
917 Args.AddLastArg(CmdArgs, options::OPT_mdouble_float,
918 options::OPT_msingle_float);
919
920 Args.AddLastArg(CmdArgs, options::OPT_modd_spreg,
921 options::OPT_mno_odd_spreg);
922
923 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
924 break;
925 }
926 case llvm::Triple::systemz: {
927 // Always pass an -march option, since our default of z10 is later
928 // than the GNU assembler's default.
929 std::string CPUName = systemz::getSystemZTargetCPU(Args);
930 CmdArgs.push_back(Args.MakeArgString("-march=" + CPUName));
931 break;
932 }
933 case llvm::Triple::ve:
934 DefaultAssembler = "nas";
935 }
936
937 for (const Arg *A : Args.filtered(options::OPT_ffile_prefix_map_EQ,
938 options::OPT_fdebug_prefix_map_EQ)) {
939 StringRef Map = A->getValue();
940 if (!Map.contains('='))
941 D.Diag(diag::err_drv_invalid_argument_to_option)
942 << Map << A->getOption().getName();
943 else {
944 CmdArgs.push_back(Args.MakeArgString("--debug-prefix-map"));
945 CmdArgs.push_back(Args.MakeArgString(Map));
946 }
947 A->claim();
948 }
949
950 Args.AddAllArgs(CmdArgs, options::OPT_I);
951 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
952
953 CmdArgs.push_back("-o");
954 CmdArgs.push_back(Output.getFilename());
955
956 for (const auto &II : Inputs)
957 CmdArgs.push_back(II.getFilename());
958
959 if (Arg *A = Args.getLastArg(options::OPT_g_Flag, options::OPT_gN_Group,
960 options::OPT_gdwarf_2, options::OPT_gdwarf_3,
961 options::OPT_gdwarf_4, options::OPT_gdwarf_5,
962 options::OPT_gdwarf))
963 if (!A->getOption().matches(options::OPT_g0)) {
964 Args.AddLastArg(CmdArgs, options::OPT_g_Flag);
965
966 unsigned DwarfVersion = getDwarfVersion(getToolChain(), Args);
967 CmdArgs.push_back(Args.MakeArgString("-gdwarf-" + Twine(DwarfVersion)));
968 }
969
970 const char *Exec =
971 Args.MakeArgString(getToolChain().GetProgramPath(DefaultAssembler));
972 C.addCommand(std::make_unique<Command>(JA, *this,
973 ResponseFileSupport::AtFileCurCP(),
974 Exec, CmdArgs, Inputs, Output));
975
976 // Handle the debug info splitting at object creation time if we're
977 // creating an object.
978 // TODO: Currently only works on linux with newer objcopy.
979 if (Args.hasArg(options::OPT_gsplit_dwarf) &&
980 getToolChain().getTriple().isOSLinux())
981 SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output,
982 SplitDebugName(JA, Args, Inputs[0], Output));
983}
984
985namespace {
986// Filter to remove Multilibs that don't exist as a suffix to Path
987class FilterNonExistent {
988 StringRef Base, File;
989 llvm::vfs::FileSystem &VFS;
990
991public:
992 FilterNonExistent(StringRef Base, StringRef File, llvm::vfs::FileSystem &VFS)
993 : Base(Base), File(File), VFS(VFS) {}
994 bool operator()(const Multilib &M) {
995 return !VFS.exists(Base + M.gccSuffix() + File);
996 }
997};
998} // end anonymous namespace
999
1000static bool isSoftFloatABI(const ArgList &Args) {
1001 Arg *A = Args.getLastArg(options::OPT_msoft_float, options::OPT_mhard_float,
1002 options::OPT_mfloat_abi_EQ);
1003 if (!A)
1004 return false;
1005
1006 return A->getOption().matches(options::OPT_msoft_float) ||
1007 (A->getOption().matches(options::OPT_mfloat_abi_EQ) &&
1008 A->getValue() == StringRef("soft"));
1009}
1010
1011static bool isArmOrThumbArch(llvm::Triple::ArchType Arch) {
1012 return Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb;
1013}
1014
1015static bool isMipsEL(llvm::Triple::ArchType Arch) {
1016 return Arch == llvm::Triple::mipsel || Arch == llvm::Triple::mips64el;
1017}
1018
1019static bool isMips16(const ArgList &Args) {
1020 Arg *A = Args.getLastArg(options::OPT_mips16, options::OPT_mno_mips16);
1021 return A && A->getOption().matches(options::OPT_mips16);
1022}
1023
1024static bool isMicroMips(const ArgList &Args) {
1025 Arg *A = Args.getLastArg(options::OPT_mmicromips, options::OPT_mno_micromips);
1026 return A && A->getOption().matches(options::OPT_mmicromips);
1027}
1028
1029static bool isMSP430(llvm::Triple::ArchType Arch) {
1030 return Arch == llvm::Triple::msp430;
1031}
1032
1033static bool findMipsCsMultilibs(const Multilib::flags_list &Flags,
1034 FilterNonExistent &NonExistent,
1035 DetectedMultilibs &Result) {
1036 // Check for Code Sourcery toolchain multilibs
1037 MultilibSet CSMipsMultilibs;
1038 {
1039 auto MArchMips16 = MultilibBuilder("/mips16").flag("-m32").flag("-mips16");
1040
1041 auto MArchMicroMips =
1042 MultilibBuilder("/micromips").flag("-m32").flag("-mmicromips");
1043
1044 auto MArchDefault = MultilibBuilder("")
1045 .flag("-mips16", /*Disallow=*/true)
1046 .flag("-mmicromips", /*Disallow=*/true);
1047
1048 auto UCLibc = MultilibBuilder("/uclibc").flag("-muclibc");
1049
1050 auto SoftFloat = MultilibBuilder("/soft-float").flag("-msoft-float");
1051
1052 auto Nan2008 = MultilibBuilder("/nan2008").flag("-mnan=2008");
1053
1054 auto DefaultFloat = MultilibBuilder("")
1055 .flag("-msoft-float", /*Disallow=*/true)
1056 .flag("-mnan=2008", /*Disallow=*/true);
1057
1058 auto BigEndian =
1059 MultilibBuilder("").flag("-EB").flag("-EL", /*Disallow=*/true);
1060
1061 auto LittleEndian =
1062 MultilibBuilder("/el").flag("-EL").flag("-EB", /*Disallow=*/true);
1063
1064 // Note that this one's osSuffix is ""
1065 auto MAbi64 = MultilibBuilder("")
1066 .gccSuffix("/64")
1067 .includeSuffix("/64")
1068 .flag("-mabi=n64")
1069 .flag("-mabi=n32", /*Disallow=*/true)
1070 .flag("-m32", /*Disallow=*/true);
1071
1072 CSMipsMultilibs =
1073 MultilibSetBuilder()
1074 .Either(MArchMips16, MArchMicroMips, MArchDefault)
1075 .Maybe(UCLibc)
1076 .Either(SoftFloat, Nan2008, DefaultFloat)
1077 .FilterOut("/micromips/nan2008")
1078 .FilterOut("/mips16/nan2008")
1079 .Either(BigEndian, LittleEndian)
1080 .Maybe(MAbi64)
1081 .FilterOut("/mips16.*/64")
1082 .FilterOut("/micromips.*/64")
1083 .makeMultilibSet()
1084 .FilterOut(NonExistent)
1085 .setIncludeDirsCallback([](const Multilib &M) {
1086 std::vector<std::string> Dirs({"/include"});
1087 if (StringRef(M.includeSuffix()).startswith("/uclibc"))
1088 Dirs.push_back(
1089 "/../../../../mips-linux-gnu/libc/uclibc/usr/include");
1090 else
1091 Dirs.push_back("/../../../../mips-linux-gnu/libc/usr/include");
1092 return Dirs;
1093 });
1094 }
1095
1096 MultilibSet DebianMipsMultilibs;
1097 {
1098 MultilibBuilder MAbiN32 =
1099 MultilibBuilder().gccSuffix("/n32").includeSuffix("/n32").flag(
1100 "-mabi=n32");
1101
1102 MultilibBuilder M64 = MultilibBuilder()
1103 .gccSuffix("/64")
1104 .includeSuffix("/64")
1105 .flag("-m64")
1106 .flag("-m32", /*Disallow=*/true)
1107 .flag("-mabi=n32", /*Disallow=*/true);
1108
1109 MultilibBuilder M32 = MultilibBuilder()
1110 .gccSuffix("/32")
1111 .flag("-m64", /*Disallow=*/true)
1112 .flag("-m32")
1113 .flag("-mabi=n32", /*Disallow=*/true);
1114
1115 DebianMipsMultilibs = MultilibSetBuilder()
1116 .Either(M32, M64, MAbiN32)
1117 .makeMultilibSet()
1118 .FilterOut(NonExistent);
1119 }
1120
1121 // Sort candidates. Toolchain that best meets the directories tree goes first.
1122 // Then select the first toolchains matches command line flags.
1123 MultilibSet *Candidates[] = {&CSMipsMultilibs, &DebianMipsMultilibs};
1124 if (CSMipsMultilibs.size() < DebianMipsMultilibs.size())
1125 std::iter_swap(Candidates, Candidates + 1);
1126 for (const MultilibSet *Candidate : Candidates) {
1127 if (Candidate->select(Flags, Result.SelectedMultilibs)) {
1128 if (Candidate == &DebianMipsMultilibs)
1129 Result.BiarchSibling = Multilib();
1130 Result.Multilibs = *Candidate;
1131 return true;
1132 }
1133 }
1134 return false;
1135}
1136
1137static bool findMipsAndroidMultilibs(llvm::vfs::FileSystem &VFS, StringRef Path,
1138 const Multilib::flags_list &Flags,
1139 FilterNonExistent &NonExistent,
1140 DetectedMultilibs &Result) {
1141
1142 MultilibSet AndroidMipsMultilibs =
1143 MultilibSetBuilder()
1144 .Maybe(MultilibBuilder("/mips-r2", {}, {}).flag("-march=mips32r2"))
1145 .Maybe(MultilibBuilder("/mips-r6", {}, {}).flag("-march=mips32r6"))
1146 .makeMultilibSet()
1147 .FilterOut(NonExistent);
1148
1149 MultilibSet AndroidMipselMultilibs =
1150 MultilibSetBuilder()
1151 .Either(MultilibBuilder().flag("-march=mips32"),
1152 MultilibBuilder("/mips-r2", "", "/mips-r2")
1153 .flag("-march=mips32r2"),
1154 MultilibBuilder("/mips-r6", "", "/mips-r6")
1155 .flag("-march=mips32r6"))
1156 .makeMultilibSet()
1157 .FilterOut(NonExistent);
1158
1159 MultilibSet AndroidMips64elMultilibs =
1160 MultilibSetBuilder()
1161 .Either(MultilibBuilder().flag("-march=mips64r6"),
1162 MultilibBuilder("/32/mips-r1", "", "/mips-r1")
1163 .flag("-march=mips32"),
1164 MultilibBuilder("/32/mips-r2", "", "/mips-r2")
1165 .flag("-march=mips32r2"),
1166 MultilibBuilder("/32/mips-r6", "", "/mips-r6")
1167 .flag("-march=mips32r6"))
1168 .makeMultilibSet()
1169 .FilterOut(NonExistent);
1170
1171 MultilibSet *MS = &AndroidMipsMultilibs;
1172 if (VFS.exists(Path + "/mips-r6"))
1173 MS = &AndroidMipselMultilibs;
1174 else if (VFS.exists(Path + "/32"))
1175 MS = &AndroidMips64elMultilibs;
1176 if (MS->select(Flags, Result.SelectedMultilibs)) {
1177 Result.Multilibs = *MS;
1178 return true;
1179 }
1180 return false;
1181}
1182
1183static bool findMipsMuslMultilibs(const Multilib::flags_list &Flags,
1184 FilterNonExistent &NonExistent,
1185 DetectedMultilibs &Result) {
1186 // Musl toolchain multilibs
1187 MultilibSet MuslMipsMultilibs;
1188 {
1189 auto MArchMipsR2 = MultilibBuilder("")
1190 .osSuffix("/mips-r2-hard-musl")
1191 .flag("-EB")
1192 .flag("-EL", /*Disallow=*/true)
1193 .flag("-march=mips32r2");
1194
1195 auto MArchMipselR2 = MultilibBuilder("/mipsel-r2-hard-musl")
1196 .flag("-EB", /*Disallow=*/true)
1197 .flag("-EL")
1198 .flag("-march=mips32r2");
1199
1200 MuslMipsMultilibs = MultilibSetBuilder()
1201 .Either(MArchMipsR2, MArchMipselR2)
1202 .makeMultilibSet();
1203
1204 // Specify the callback that computes the include directories.
1205 MuslMipsMultilibs.setIncludeDirsCallback([](const Multilib &M) {
1206 return std::vector<std::string>(
1207 {"/../sysroot" + M.osSuffix() + "/usr/include"});
1208 });
1209 }
1210 if (MuslMipsMultilibs.select(Flags, Result.SelectedMultilibs)) {
1211 Result.Multilibs = MuslMipsMultilibs;
1212 return true;
1213 }
1214 return false;
1215}
1216
1217static bool findMipsMtiMultilibs(const Multilib::flags_list &Flags,
1218 FilterNonExistent &NonExistent,
1219 DetectedMultilibs &Result) {
1220 // CodeScape MTI toolchain v1.2 and early.
1221 MultilibSet MtiMipsMultilibsV1;
1222 {
1223 auto MArchMips32 = MultilibBuilder("/mips32")
1224 .flag("-m32")
1225 .flag("-m64", /*Disallow=*/true)
1226 .flag("-mmicromips", /*Disallow=*/true)
1227 .flag("-march=mips32");
1228
1229 auto MArchMicroMips = MultilibBuilder("/micromips")
1230 .flag("-m32")
1231 .flag("-m64", /*Disallow=*/true)
1232 .flag("-mmicromips");
1233
1234 auto MArchMips64r2 = MultilibBuilder("/mips64r2")
1235 .flag("-m32", /*Disallow=*/true)
1236 .flag("-m64")
1237 .flag("-march=mips64r2");
1238
1239 auto MArchMips64 = MultilibBuilder("/mips64")
1240 .flag("-m32", /*Disallow=*/true)
1241 .flag("-m64")
1242 .flag("-march=mips64r2", /*Disallow=*/true);
1243
1244 auto MArchDefault = MultilibBuilder("")
1245 .flag("-m32")
1246 .flag("-m64", /*Disallow=*/true)
1247 .flag("-mmicromips", /*Disallow=*/true)
1248 .flag("-march=mips32r2");
1249
1250 auto Mips16 = MultilibBuilder("/mips16").flag("-mips16");
1251
1252 auto UCLibc = MultilibBuilder("/uclibc").flag("-muclibc");
1253
1254 auto MAbi64 = MultilibBuilder("/64")
1255 .flag("-mabi=n64")
1256 .flag("-mabi=n32", /*Disallow=*/true)
1257 .flag("-m32", /*Disallow=*/true);
1258
1259 auto BigEndian =
1260 MultilibBuilder("").flag("-EB").flag("-EL", /*Disallow=*/true);
1261
1262 auto LittleEndian =
1263 MultilibBuilder("/el").flag("-EL").flag("-EB", /*Disallow=*/true);
1264
1265 auto SoftFloat = MultilibBuilder("/sof").flag("-msoft-float");
1266
1267 auto Nan2008 = MultilibBuilder("/nan2008").flag("-mnan=2008");
1268
1269 MtiMipsMultilibsV1 =
1270 MultilibSetBuilder()
1271 .Either(MArchMips32, MArchMicroMips, MArchMips64r2, MArchMips64,
1272 MArchDefault)
1273 .Maybe(UCLibc)
1274 .Maybe(Mips16)
1275 .FilterOut("/mips64/mips16")
1276 .FilterOut("/mips64r2/mips16")
1277 .FilterOut("/micromips/mips16")
1278 .Maybe(MAbi64)
1279 .FilterOut("/micromips/64")
1280 .FilterOut("/mips32/64")
1281 .FilterOut("^/64")
1282 .FilterOut("/mips16/64")
1283 .Either(BigEndian, LittleEndian)
1284 .Maybe(SoftFloat)
1285 .Maybe(Nan2008)
1286 .FilterOut(".*sof/nan2008")
1287 .makeMultilibSet()
1288 .FilterOut(NonExistent)
1289 .setIncludeDirsCallback([](const Multilib &M) {
1290 std::vector<std::string> Dirs({"/include"});
1291 if (StringRef(M.includeSuffix()).startswith("/uclibc"))
1292 Dirs.push_back("/../../../../sysroot/uclibc/usr/include");
1293 else
1294 Dirs.push_back("/../../../../sysroot/usr/include");
1295 return Dirs;
1296 });
1297 }
1298
1299 // CodeScape IMG toolchain starting from v1.3.
1300 MultilibSet MtiMipsMultilibsV2;
1301 {
1302 auto BeHard = MultilibBuilder("/mips-r2-hard")
1303 .flag("-EB")
1304 .flag("-msoft-float", /*Disallow=*/true)
1305 .flag("-mnan=2008", /*Disallow=*/true)
1306 .flag("-muclibc", /*Disallow=*/true);
1307 auto BeSoft = MultilibBuilder("/mips-r2-soft")
1308 .flag("-EB")
1309 .flag("-msoft-float")
1310 .flag("-mnan=2008", /*Disallow=*/true);
1311 auto ElHard = MultilibBuilder("/mipsel-r2-hard")
1312 .flag("-EL")
1313 .flag("-msoft-float", /*Disallow=*/true)
1314 .flag("-mnan=2008", /*Disallow=*/true)
1315 .flag("-muclibc", /*Disallow=*/true);
1316 auto ElSoft = MultilibBuilder("/mipsel-r2-soft")
1317 .flag("-EL")
1318 .flag("-msoft-float")
1319 .flag("-mnan=2008", /*Disallow=*/true)
1320 .flag("-mmicromips", /*Disallow=*/true);
1321 auto BeHardNan = MultilibBuilder("/mips-r2-hard-nan2008")
1322 .flag("-EB")
1323 .flag("-msoft-float", /*Disallow=*/true)
1324 .flag("-mnan=2008")
1325 .flag("-muclibc", /*Disallow=*/true);
1326 auto ElHardNan = MultilibBuilder("/mipsel-r2-hard-nan2008")
1327 .flag("-EL")
1328 .flag("-msoft-float", /*Disallow=*/true)
1329 .flag("-mnan=2008")
1330 .flag("-muclibc", /*Disallow=*/true)
1331 .flag("-mmicromips", /*Disallow=*/true);
1332 auto BeHardNanUclibc = MultilibBuilder("/mips-r2-hard-nan2008-uclibc")
1333 .flag("-EB")
1334 .flag("-msoft-float", /*Disallow=*/true)
1335 .flag("-mnan=2008")
1336 .flag("-muclibc");
1337 auto ElHardNanUclibc = MultilibBuilder("/mipsel-r2-hard-nan2008-uclibc")
1338 .flag("-EL")
1339 .flag("-msoft-float", /*Disallow=*/true)
1340 .flag("-mnan=2008")
1341 .flag("-muclibc");
1342 auto BeHardUclibc = MultilibBuilder("/mips-r2-hard-uclibc")
1343 .flag("-EB")
1344 .flag("-msoft-float", /*Disallow=*/true)
1345 .flag("-mnan=2008", /*Disallow=*/true)
1346 .flag("-muclibc");
1347 auto ElHardUclibc = MultilibBuilder("/mipsel-r2-hard-uclibc")
1348 .flag("-EL")
1349 .flag("-msoft-float", /*Disallow=*/true)
1350 .flag("-mnan=2008", /*Disallow=*/true)
1351 .flag("-muclibc");
1352 auto ElMicroHardNan = MultilibBuilder("/micromipsel-r2-hard-nan2008")
1353 .flag("-EL")
1354 .flag("-msoft-float", /*Disallow=*/true)
1355 .flag("-mnan=2008")
1356 .flag("-mmicromips");
1357 auto ElMicroSoft = MultilibBuilder("/micromipsel-r2-soft")
1358 .flag("-EL")
1359 .flag("-msoft-float")
1360 .flag("-mnan=2008", /*Disallow=*/true)
1361 .flag("-mmicromips");
1362
1363 auto O32 = MultilibBuilder("/lib")
1364 .osSuffix("")
1365 .flag("-mabi=n32", /*Disallow=*/true)
1366 .flag("-mabi=n64", /*Disallow=*/true);
1367 auto N32 = MultilibBuilder("/lib32")
1368 .osSuffix("")
1369 .flag("-mabi=n32")
1370 .flag("-mabi=n64", /*Disallow=*/true);
1371 auto N64 = MultilibBuilder("/lib64")
1372 .osSuffix("")
1373 .flag("-mabi=n32", /*Disallow=*/true)
1374 .flag("-mabi=n64");
1375
1376 MtiMipsMultilibsV2 =
1377 MultilibSetBuilder()
1378 .Either({BeHard, BeSoft, ElHard, ElSoft, BeHardNan, ElHardNan,
1379 BeHardNanUclibc, ElHardNanUclibc, BeHardUclibc,
1380 ElHardUclibc, ElMicroHardNan, ElMicroSoft})
1381 .Either(O32, N32, N64)
1382 .makeMultilibSet()
1383 .FilterOut(NonExistent)
1384 .setIncludeDirsCallback([](const Multilib &M) {
1385 return std::vector<std::string>({"/../../../../sysroot" +
1386 M.includeSuffix() +
1387 "/../usr/include"});
1388 })
1389 .setFilePathsCallback([](const Multilib &M) {
1390 return std::vector<std::string>(
1391 {"/../../../../mips-mti-linux-gnu/lib" + M.gccSuffix()});
1392 });
1393 }
1394 for (auto *Candidate : {&MtiMipsMultilibsV1, &MtiMipsMultilibsV2}) {
1395 if (Candidate->select(Flags, Result.SelectedMultilibs)) {
1396 Result.Multilibs = *Candidate;
1397 return true;
1398 }
1399 }
1400 return false;
1401}
1402
1403static bool findMipsImgMultilibs(const Multilib::flags_list &Flags,
1404 FilterNonExistent &NonExistent,
1405 DetectedMultilibs &Result) {
1406 // CodeScape IMG toolchain v1.2 and early.
1407 MultilibSet ImgMultilibsV1;
1408 {
1409 auto Mips64r6 = MultilibBuilder("/mips64r6")
1410 .flag("-m64")
1411 .flag("-m32", /*Disallow=*/true);
1412
1413 auto LittleEndian =
1414 MultilibBuilder("/el").flag("-EL").flag("-EB", /*Disallow=*/true);
1415
1416 auto MAbi64 = MultilibBuilder("/64")
1417 .flag("-mabi=n64")
1418 .flag("-mabi=n32", /*Disallow=*/true)
1419 .flag("-m32", /*Disallow=*/true);
1420
1421 ImgMultilibsV1 =
1422 MultilibSetBuilder()
1423 .Maybe(Mips64r6)
1424 .Maybe(MAbi64)
1425 .Maybe(LittleEndian)
1426 .makeMultilibSet()
1427 .FilterOut(NonExistent)
1428 .setIncludeDirsCallback([](const Multilib &M) {
1429 return std::vector<std::string>(
1430 {"/include", "/../../../../sysroot/usr/include"});
1431 });
1432 }
1433
1434 // CodeScape IMG toolchain starting from v1.3.
1435 MultilibSet ImgMultilibsV2;
1436 {
1437 auto BeHard = MultilibBuilder("/mips-r6-hard")
1438 .flag("-EB")
1439 .flag("-msoft-float", /*Disallow=*/true)
1440 .flag("-mmicromips", /*Disallow=*/true);
1441 auto BeSoft = MultilibBuilder("/mips-r6-soft")
1442 .flag("-EB")
1443 .flag("-msoft-float")
1444 .flag("-mmicromips", /*Disallow=*/true);
1445 auto ElHard = MultilibBuilder("/mipsel-r6-hard")
1446 .flag("-EL")
1447 .flag("-msoft-float", /*Disallow=*/true)
1448 .flag("-mmicromips", /*Disallow=*/true);
1449 auto ElSoft = MultilibBuilder("/mipsel-r6-soft")
1450 .flag("-EL")
1451 .flag("-msoft-float")
1452 .flag("-mmicromips", /*Disallow=*/true);
1453 auto BeMicroHard = MultilibBuilder("/micromips-r6-hard")
1454 .flag("-EB")
1455 .flag("-msoft-float", /*Disallow=*/true)
1456 .flag("-mmicromips");
1457 auto BeMicroSoft = MultilibBuilder("/micromips-r6-soft")
1458 .flag("-EB")
1459 .flag("-msoft-float")
1460 .flag("-mmicromips");
1461 auto ElMicroHard = MultilibBuilder("/micromipsel-r6-hard")
1462 .flag("-EL")
1463 .flag("-msoft-float", /*Disallow=*/true)
1464 .flag("-mmicromips");
1465 auto ElMicroSoft = MultilibBuilder("/micromipsel-r6-soft")
1466 .flag("-EL")
1467 .flag("-msoft-float")
1468 .flag("-mmicromips");
1469
1470 auto O32 = MultilibBuilder("/lib")
1471 .osSuffix("")
1472 .flag("-mabi=n32", /*Disallow=*/true)
1473 .flag("-mabi=n64", /*Disallow=*/true);
1474 auto N32 = MultilibBuilder("/lib32")
1475 .osSuffix("")
1476 .flag("-mabi=n32")
1477 .flag("-mabi=n64", /*Disallow=*/true);
1478 auto N64 = MultilibBuilder("/lib64")
1479 .osSuffix("")
1480 .flag("-mabi=n32", /*Disallow=*/true)
1481 .flag("-mabi=n64");
1482
1483 ImgMultilibsV2 =
1484 MultilibSetBuilder()
1485 .Either({BeHard, BeSoft, ElHard, ElSoft, BeMicroHard, BeMicroSoft,
1486 ElMicroHard, ElMicroSoft})
1487 .Either(O32, N32, N64)
1488 .makeMultilibSet()
1489 .FilterOut(NonExistent)
1490 .setIncludeDirsCallback([](const Multilib &M) {
1491 return std::vector<std::string>({"/../../../../sysroot" +
1492 M.includeSuffix() +
1493 "/../usr/include"});
1494 })
1495 .setFilePathsCallback([](const Multilib &M) {
1496 return std::vector<std::string>(
1497 {"/../../../../mips-img-linux-gnu/lib" + M.gccSuffix()});
1498 });
1499 }
1500 for (auto *Candidate : {&ImgMultilibsV1, &ImgMultilibsV2}) {
1501 if (Candidate->select(Flags, Result.SelectedMultilibs)) {
1502 Result.Multilibs = *Candidate;
1503 return true;
1504 }
1505 }
1506 return false;
1507}
1508
1509bool clang::driver::findMIPSMultilibs(const Driver &D,
1510 const llvm::Triple &TargetTriple,
1511 StringRef Path, const ArgList &Args,
1512 DetectedMultilibs &Result) {
1513 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1514
1515 StringRef CPUName;
1516 StringRef ABIName;
1517 tools::mips::getMipsCPUAndABI(Args, TargetTriple, CPUName, ABIName);
1518
1519 llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
1520
1521 Multilib::flags_list Flags;
1522 addMultilibFlag(TargetTriple.isMIPS32(), "-m32", Flags);
1523 addMultilibFlag(TargetTriple.isMIPS64(), "-m64", Flags);
1524 addMultilibFlag(isMips16(Args), "-mips16", Flags);
1525 addMultilibFlag(CPUName == "mips32", "-march=mips32", Flags);
1526 addMultilibFlag(CPUName == "mips32r2" || CPUName == "mips32r3" ||
1527 CPUName == "mips32r5" || CPUName == "p5600",
1528 "-march=mips32r2", Flags);
1529 addMultilibFlag(CPUName == "mips32r6", "-march=mips32r6", Flags);
1530 addMultilibFlag(CPUName == "mips64", "-march=mips64", Flags);
1531 addMultilibFlag(CPUName == "mips64r2" || CPUName == "mips64r3" ||
1532 CPUName == "mips64r5" || CPUName == "octeon" ||
1533 CPUName == "octeon+",
1534 "-march=mips64r2", Flags);
1535 addMultilibFlag(CPUName == "mips64r6", "-march=mips64r6", Flags);
1536 addMultilibFlag(isMicroMips(Args), "-mmicromips", Flags);
1537 addMultilibFlag(tools::mips::isUCLibc(Args), "-muclibc", Flags);
1538 addMultilibFlag(tools::mips::isNaN2008(D, Args, TargetTriple), "-mnan=2008",
1539 Flags);
1540 addMultilibFlag(ABIName == "n32", "-mabi=n32", Flags);
1541 addMultilibFlag(ABIName == "n64", "-mabi=n64", Flags);
1542 addMultilibFlag(isSoftFloatABI(Args), "-msoft-float", Flags);
1543 addMultilibFlag(!isSoftFloatABI(Args), "-mhard-float", Flags);
1544 addMultilibFlag(isMipsEL(TargetArch), "-EL", Flags);
1545 addMultilibFlag(!isMipsEL(TargetArch), "-EB", Flags);
1546
1547 if (TargetTriple.isAndroid())
1548 return findMipsAndroidMultilibs(D.getVFS(), Path, Flags, NonExistent,
1549 Result);
1550
1551 if (TargetTriple.getVendor() == llvm::Triple::MipsTechnologies &&
1552 TargetTriple.getOS() == llvm::Triple::Linux &&
1553 TargetTriple.getEnvironment() == llvm::Triple::UnknownEnvironment)
1554 return findMipsMuslMultilibs(Flags, NonExistent, Result);
1555
1556 if (TargetTriple.getVendor() == llvm::Triple::MipsTechnologies &&
1557 TargetTriple.getOS() == llvm::Triple::Linux &&
1558 TargetTriple.isGNUEnvironment())
1559 return findMipsMtiMultilibs(Flags, NonExistent, Result);
1560
1561 if (TargetTriple.getVendor() == llvm::Triple::ImaginationTechnologies &&
1562 TargetTriple.getOS() == llvm::Triple::Linux &&
1563 TargetTriple.isGNUEnvironment())
1564 return findMipsImgMultilibs(Flags, NonExistent, Result);
1565
1566 if (findMipsCsMultilibs(Flags, NonExistent, Result))
1567 return true;
1568
1569 // Fallback to the regular toolchain-tree structure.
1570 Multilib Default;
1571 Result.Multilibs.push_back(Default);
1572 Result.Multilibs.FilterOut(NonExistent);
1573
1574 if (Result.Multilibs.select(Flags, Result.SelectedMultilibs)) {
1575 Result.BiarchSibling = Multilib();
1576 return true;
1577 }
1578
1579 return false;
1580}
1581
1582static void findAndroidArmMultilibs(const Driver &D,
1583 const llvm::Triple &TargetTriple,
1584 StringRef Path, const ArgList &Args,
1585 DetectedMultilibs &Result) {
1586 // Find multilibs with subdirectories like armv7-a, thumb, armv7-a/thumb.
1587 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1588 MultilibBuilder ArmV7Multilib = MultilibBuilder("/armv7-a")
1589 .flag("-march=armv7-a")
1590 .flag("-mthumb", /*Disallow=*/true);
1591 MultilibBuilder ThumbMultilib = MultilibBuilder("/thumb")
1592 .flag("-march=armv7-a", /*Disallow=*/true)
1593 .flag("-mthumb");
1594 MultilibBuilder ArmV7ThumbMultilib =
1595 MultilibBuilder("/armv7-a/thumb").flag("-march=armv7-a").flag("-mthumb");
1596 MultilibBuilder DefaultMultilib =
1597 MultilibBuilder("")
1598 .flag("-march=armv7-a", /*Disallow=*/true)
1599 .flag("-mthumb", /*Disallow=*/true);
1600 MultilibSet AndroidArmMultilibs =
1601 MultilibSetBuilder()
1602 .Either(ThumbMultilib, ArmV7Multilib, ArmV7ThumbMultilib,
1603 DefaultMultilib)
1604 .makeMultilibSet()
1605 .FilterOut(NonExistent);
1606
1607 Multilib::flags_list Flags;
1608 llvm::StringRef Arch = Args.getLastArgValue(options::OPT_march_EQ);
1609 bool IsArmArch = TargetTriple.getArch() == llvm::Triple::arm;
1610 bool IsThumbArch = TargetTriple.getArch() == llvm::Triple::thumb;
1611 bool IsV7SubArch = TargetTriple.getSubArch() == llvm::Triple::ARMSubArch_v7;
1612 bool IsThumbMode = IsThumbArch ||
1613 Args.hasFlag(options::OPT_mthumb, options::OPT_mno_thumb, false) ||
1614 (IsArmArch && llvm::ARM::parseArchISA(Arch) == llvm::ARM::ISAKind::THUMB);
1615 bool IsArmV7Mode = (IsArmArch || IsThumbArch) &&
1616 (llvm::ARM::parseArchVersion(Arch) == 7 ||
1617 (IsArmArch && Arch == "" && IsV7SubArch));
1618 addMultilibFlag(IsArmV7Mode, "-march=armv7-a", Flags);
1619 addMultilibFlag(IsThumbMode, "-mthumb", Flags);
1620
1621 if (AndroidArmMultilibs.select(Flags, Result.SelectedMultilibs))
1622 Result.Multilibs = AndroidArmMultilibs;
1623}
1624
1625static bool findMSP430Multilibs(const Driver &D,
1626 const llvm::Triple &TargetTriple,
1627 StringRef Path, const ArgList &Args,
1628 DetectedMultilibs &Result) {
1629 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1630 MultilibBuilder WithoutExceptions =
1631 MultilibBuilder("/430").flag("-exceptions", /*Disallow=*/true);
1632 MultilibBuilder WithExceptions =
1633 MultilibBuilder("/430/exceptions").flag("-exceptions");
1634
1635 // FIXME: when clang starts to support msp430x ISA additional logic
1636 // to select between multilib must be implemented
1637 // MultilibBuilder MSP430xMultilib = MultilibBuilder("/large");
1638
1639 Result.Multilibs.push_back(WithoutExceptions.makeMultilib());
1640 Result.Multilibs.push_back(WithExceptions.makeMultilib());
1641 Result.Multilibs.FilterOut(NonExistent);
1642
1643 Multilib::flags_list Flags;
1644 addMultilibFlag(Args.hasFlag(options::OPT_fexceptions,
1645 options::OPT_fno_exceptions, false),
1646 "-exceptions", Flags);
1647 if (Result.Multilibs.select(Flags, Result.SelectedMultilibs))
1648 return true;
1649
1650 return false;
1651}
1652
1653static void findCSKYMultilibs(const Driver &D, const llvm::Triple &TargetTriple,
1654 StringRef Path, const ArgList &Args,
1655 DetectedMultilibs &Result) {
1656 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1657
1658 tools::csky::FloatABI TheFloatABI = tools::csky::getCSKYFloatABI(D, Args);
1659 std::optional<llvm::StringRef> Res =
1660 tools::csky::getCSKYArchName(D, Args, TargetTriple);
1661
1662 if (!Res)
1663 return;
1664 auto ARCHName = *Res;
1665
1666 Multilib::flags_list Flags;
1667 addMultilibFlag(TheFloatABI == tools::csky::FloatABI::Hard, "-hard-fp",
1668 Flags);
1669 addMultilibFlag(TheFloatABI == tools::csky::FloatABI::SoftFP, "-soft-fp",
1670 Flags);
1671 addMultilibFlag(TheFloatABI == tools::csky::FloatABI::Soft, "-soft", Flags);
1672 addMultilibFlag(ARCHName == "ck801", "-march=ck801", Flags);
1673 addMultilibFlag(ARCHName == "ck802", "-march=ck802", Flags);
1674 addMultilibFlag(ARCHName == "ck803", "-march=ck803", Flags);
1675 addMultilibFlag(ARCHName == "ck804", "-march=ck804", Flags);
1676 addMultilibFlag(ARCHName == "ck805", "-march=ck805", Flags);
1677 addMultilibFlag(ARCHName == "ck807", "-march=ck807", Flags);
1678 addMultilibFlag(ARCHName == "ck810", "-march=ck810", Flags);
1679 addMultilibFlag(ARCHName == "ck810v", "-march=ck810v", Flags);
1680 addMultilibFlag(ARCHName == "ck860", "-march=ck860", Flags);
1681 addMultilibFlag(ARCHName == "ck860v", "-march=ck860v", Flags);
1682
1683 bool isBigEndian = false;
1684 if (Arg *A = Args.getLastArg(options::OPT_mlittle_endian,
1685 options::OPT_mbig_endian))
1686 isBigEndian = !A->getOption().matches(options::OPT_mlittle_endian);
1687 addMultilibFlag(isBigEndian, "-EB", Flags);
1688
1689 auto HardFloat = MultilibBuilder("/hard-fp").flag("-hard-fp");
1690 auto SoftFpFloat = MultilibBuilder("/soft-fp").flag("-soft-fp");
1691 auto SoftFloat = MultilibBuilder("").flag("-soft");
1692 auto Arch801 = MultilibBuilder("/ck801").flag("-march=ck801");
1693 auto Arch802 = MultilibBuilder("/ck802").flag("-march=ck802");
1694 auto Arch803 = MultilibBuilder("/ck803").flag("-march=ck803");
1695 // CK804 use the same library as CK803
1696 auto Arch804 = MultilibBuilder("/ck803").flag("-march=ck804");
1697 auto Arch805 = MultilibBuilder("/ck805").flag("-march=ck805");
1698 auto Arch807 = MultilibBuilder("/ck807").flag("-march=ck807");
1699 auto Arch810 = MultilibBuilder("").flag("-march=ck810");
1700 auto Arch810v = MultilibBuilder("/ck810v").flag("-march=ck810v");
1701 auto Arch860 = MultilibBuilder("/ck860").flag("-march=ck860");
1702 auto Arch860v = MultilibBuilder("/ck860v").flag("-march=ck860v");
1703 auto BigEndian = MultilibBuilder("/big").flag("-EB");
1704
1705 MultilibSet CSKYMultilibs =
1706 MultilibSetBuilder()
1707 .Maybe(BigEndian)
1708 .Either({Arch801, Arch802, Arch803, Arch804, Arch805, Arch807,
1709 Arch810, Arch810v, Arch860, Arch860v})
1710 .Either(HardFloat, SoftFpFloat, SoftFloat)
1711 .makeMultilibSet()
1712 .FilterOut(NonExistent);
1713
1714 if (CSKYMultilibs.select(Flags, Result.SelectedMultilibs))
1715 Result.Multilibs = CSKYMultilibs;
1716}
1717
1718static void findRISCVBareMetalMultilibs(const Driver &D,
1719 const llvm::Triple &TargetTriple,
1720 StringRef Path, const ArgList &Args,
1721 DetectedMultilibs &Result) {
1722 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1723 struct RiscvMultilib {
1724 StringRef march;
1725 StringRef mabi;
1726 };
1727 // currently only support the set of multilibs like riscv-gnu-toolchain does.
1728 // TODO: support MULTILIB_REUSE
1729 constexpr RiscvMultilib RISCVMultilibSet[] = {
1730 {"rv32i", "ilp32"}, {"rv32im", "ilp32"}, {"rv32iac", "ilp32"},
1731 {"rv32imac", "ilp32"}, {"rv32imafc", "ilp32f"}, {"rv64imac", "lp64"},
1732 {"rv64imafdc", "lp64d"}};
1733
1734 std::vector<MultilibBuilder> Ms;
1735 for (auto Element : RISCVMultilibSet) {
1736 // multilib path rule is ${march}/${mabi}
1737 Ms.emplace_back(
1738 MultilibBuilder(
1739 (Twine(Element.march) + "/" + Twine(Element.mabi)).str())
1740 .flag(Twine("-march=", Element.march).str())
1741 .flag(Twine("-mabi=", Element.mabi).str()));
1742 }
1743 MultilibSet RISCVMultilibs =
1744 MultilibSetBuilder()
1745 .Either(Ms)
1746 .makeMultilibSet()
1747 .FilterOut(NonExistent)
1748 .setFilePathsCallback([](const Multilib &M) {
1749 return std::vector<std::string>(
1750 {M.gccSuffix(),
1751 "/../../../../riscv64-unknown-elf/lib" + M.gccSuffix(),
1752 "/../../../../riscv32-unknown-elf/lib" + M.gccSuffix()});
1753 });
1754
1755 Multilib::flags_list Flags;
1756 llvm::StringSet<> Added_ABIs;
1757 StringRef ABIName = tools::riscv::getRISCVABI(Args, TargetTriple);
1758 StringRef MArch = tools::riscv::getRISCVArch(Args, TargetTriple);
1759 for (auto Element : RISCVMultilibSet) {
1760 addMultilibFlag(MArch == Element.march,
1761 Twine("-march=", Element.march).str().c_str(), Flags);
1762 if (!Added_ABIs.count(Element.mabi)) {
1763 Added_ABIs.insert(Element.mabi);
1764 addMultilibFlag(ABIName == Element.mabi,
1765 Twine("-mabi=", Element.mabi).str().c_str(), Flags);
1766 }
1767 }
1768
1769 if (RISCVMultilibs.select(Flags, Result.SelectedMultilibs))
1770 Result.Multilibs = RISCVMultilibs;
1771}
1772
1773static void findRISCVMultilibs(const Driver &D,
1774 const llvm::Triple &TargetTriple, StringRef Path,
1775 const ArgList &Args, DetectedMultilibs &Result) {
1776 if (TargetTriple.getOS() == llvm::Triple::UnknownOS)
1777 return findRISCVBareMetalMultilibs(D, TargetTriple, Path, Args, Result);
1778
1779 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1780 MultilibBuilder Ilp32 =
1781 MultilibBuilder("lib32/ilp32").flag("-m32").flag("-mabi=ilp32");
1782 MultilibBuilder Ilp32f =
1783 MultilibBuilder("lib32/ilp32f").flag("-m32").flag("-mabi=ilp32f");
1784 MultilibBuilder Ilp32d =
1785 MultilibBuilder("lib32/ilp32d").flag("-m32").flag("-mabi=ilp32d");
1786 MultilibBuilder Lp64 =
1787 MultilibBuilder("lib64/lp64").flag("-m64").flag("-mabi=lp64");
1788 MultilibBuilder Lp64f =
1789 MultilibBuilder("lib64/lp64f").flag("-m64").flag("-mabi=lp64f");
1790 MultilibBuilder Lp64d =
1791 MultilibBuilder("lib64/lp64d").flag("-m64").flag("-mabi=lp64d");
1792 MultilibSet RISCVMultilibs =
1793 MultilibSetBuilder()
1794 .Either({Ilp32, Ilp32f, Ilp32d, Lp64, Lp64f, Lp64d})
1795 .makeMultilibSet()
1796 .FilterOut(NonExistent);
1797
1798 Multilib::flags_list Flags;
1799 bool IsRV64 = TargetTriple.getArch() == llvm::Triple::riscv64;
1800 StringRef ABIName = tools::riscv::getRISCVABI(Args, TargetTriple);
1801
1802 addMultilibFlag(!IsRV64, "-m32", Flags);
1803 addMultilibFlag(IsRV64, "-m64", Flags);
1804 addMultilibFlag(ABIName == "ilp32", "-mabi=ilp32", Flags);
1805 addMultilibFlag(ABIName == "ilp32f", "-mabi=ilp32f", Flags);
1806 addMultilibFlag(ABIName == "ilp32d", "-mabi=ilp32d", Flags);
1807 addMultilibFlag(ABIName == "lp64", "-mabi=lp64", Flags);
1808 addMultilibFlag(ABIName == "lp64f", "-mabi=lp64f", Flags);
1809 addMultilibFlag(ABIName == "lp64d", "-mabi=lp64d", Flags);
1810
1811 if (RISCVMultilibs.select(Flags, Result.SelectedMultilibs))
1812 Result.Multilibs = RISCVMultilibs;
1813}
1814
1815static bool findBiarchMultilibs(const Driver &D,
1816 const llvm::Triple &TargetTriple,
1817 StringRef Path, const ArgList &Args,
1818 bool NeedsBiarchSuffix,
1819 DetectedMultilibs &Result) {
1820 MultilibBuilder DefaultBuilder;
1821
1822 // Some versions of SUSE and Fedora on ppc64 put 32-bit libs
1823 // in what would normally be GCCInstallPath and put the 64-bit
1824 // libs in a subdirectory named 64. The simple logic we follow is that
1825 // *if* there is a subdirectory of the right name with crtbegin.o in it,
1826 // we use that. If not, and if not a biarch triple alias, we look for
1827 // crtbegin.o without the subdirectory.
1828
1829 StringRef Suff64 = "/64";
1830 // Solaris uses platform-specific suffixes instead of /64.
1831 if (TargetTriple.isOSSolaris()) {
1832 switch (TargetTriple.getArch()) {
1833 case llvm::Triple::x86:
1834 case llvm::Triple::x86_64:
1835 Suff64 = "/amd64";
1836 break;
1837 case llvm::Triple::sparc:
1838 case llvm::Triple::sparcv9:
1839 Suff64 = "/sparcv9";
1840 break;
1841 default:
1842 break;
1843 }
1844 }
1845
1846 Multilib Alt64 = MultilibBuilder()
1847 .gccSuffix(Suff64)
1848 .includeSuffix(Suff64)
1849 .flag("-m32", /*Disallow=*/true)
1850 .flag("-m64")
1851 .flag("-mx32", /*Disallow=*/true)
1852 .makeMultilib();
1853 Multilib Alt32 = MultilibBuilder()
1854 .gccSuffix("/32")
1855 .includeSuffix("/32")
1856 .flag("-m32")
1857 .flag("-m64", /*Disallow=*/true)
1858 .flag("-mx32", /*Disallow=*/true)
1859 .makeMultilib();
1860 Multilib Altx32 = MultilibBuilder()
1861 .gccSuffix("/x32")
1862 .includeSuffix("/x32")
1863 .flag("-m32", /*Disallow=*/true)
1864 .flag("-m64", /*Disallow=*/true)
1865 .flag("-mx32")
1866 .makeMultilib();
1867 Multilib Alt32sparc = MultilibBuilder()
1868 .gccSuffix("/sparcv8plus")
1869 .includeSuffix("/sparcv8plus")
1870 .flag("-m32")
1871 .flag("-m64", /*Disallow=*/true)
1872 .makeMultilib();
1873
1874 // GCC toolchain for IAMCU doesn't have crtbegin.o, so look for libgcc.a.
1875 FilterNonExistent NonExistent(
1876 Path, TargetTriple.isOSIAMCU() ? "/libgcc.a" : "/crtbegin.o", D.getVFS());
1877
1878 // Determine default multilib from: 32, 64, x32
1879 // Also handle cases such as 64 on 32, 32 on 64, etc.
1880 enum { UNKNOWN, WANT32, WANT64, WANTX32 } Want = UNKNOWN;
1881 const bool IsX32 = TargetTriple.isX32();
1882 if (TargetTriple.isArch32Bit() && !NonExistent(Alt32))
1883 Want = WANT64;
1884 if (TargetTriple.isArch32Bit() && !NonExistent(Alt32sparc))
1885 Want = WANT64;
1886 else if (TargetTriple.isArch64Bit() && IsX32 && !NonExistent(Altx32))
1887 Want = WANT64;
1888 else if (TargetTriple.isArch64Bit() && !IsX32 && !NonExistent(Alt64))
1889 Want = WANT32;
1890 else if (TargetTriple.isArch64Bit() && !NonExistent(Alt32sparc))
1891 Want = WANT64;
1892 else {
1893 if (TargetTriple.isArch32Bit())
1894 Want = NeedsBiarchSuffix ? WANT64 : WANT32;
1895 else if (IsX32)
1896 Want = NeedsBiarchSuffix ? WANT64 : WANTX32;
1897 else
1898 Want = NeedsBiarchSuffix ? WANT32 : WANT64;
1899 }
1900
1901 if (Want == WANT32)
1902 DefaultBuilder.flag("-m32")
1903 .flag("-m64", /*Disallow=*/true)
1904 .flag("-mx32", /*Disallow=*/true);
1905 else if (Want == WANT64)
1906 DefaultBuilder.flag("-m32", /*Disallow=*/true)
1907 .flag("-m64")
1908 .flag("-mx32", /*Disallow=*/true);
1909 else if (Want == WANTX32)
1910 DefaultBuilder.flag("-m32", /*Disallow=*/true)
1911 .flag("-m64", /*Disallow=*/true)
1912 .flag("-mx32");
1913 else
1914 return false;
1915
1916 Multilib Default = DefaultBuilder.makeMultilib();
1917
1918 Result.Multilibs.push_back(Default);
1919 Result.Multilibs.push_back(Alt64);
1920 Result.Multilibs.push_back(Alt32);
1921 Result.Multilibs.push_back(Altx32);
1922 Result.Multilibs.push_back(Alt32sparc);
1923
1924 Result.Multilibs.FilterOut(NonExistent);
1925
1926 Multilib::flags_list Flags;
1927 addMultilibFlag(TargetTriple.isArch64Bit() && !IsX32, "-m64", Flags);
1928 addMultilibFlag(TargetTriple.isArch32Bit(), "-m32", Flags);
1929 addMultilibFlag(TargetTriple.isArch64Bit() && IsX32, "-mx32", Flags);
1930
1931 if (!Result.Multilibs.select(Flags, Result.SelectedMultilibs))
1932 return false;
1933
1934 if (Result.SelectedMultilibs.back() == Alt64 ||
1935 Result.SelectedMultilibs.back() == Alt32 ||
1936 Result.SelectedMultilibs.back() == Altx32 ||
1937 Result.SelectedMultilibs.back() == Alt32sparc)
1938 Result.BiarchSibling = Default;
1939
1940 return true;
1941}
1942
1943/// Generic_GCC - A tool chain using the 'gcc' command to perform
1944/// all subcommands; this relies on gcc translating the majority of
1945/// command line options.
1946
1947/// Less-than for GCCVersion, implementing a Strict Weak Ordering.
1948bool Generic_GCC::GCCVersion::isOlderThan(int RHSMajor, int RHSMinor,
1949 int RHSPatch,
1950 StringRef RHSPatchSuffix) const {
1951 if (Major != RHSMajor)
1952 return Major < RHSMajor;
1953 if (Minor != RHSMinor) {
1954 // Note that versions without a specified minor sort higher than those with
1955 // a minor.
1956 if (RHSMinor == -1)
1957 return true;
1958 if (Minor == -1)
1959 return false;
1960 return Minor < RHSMinor;
1961 }
1962 if (Patch != RHSPatch) {
1963 // Note that versions without a specified patch sort higher than those with
1964 // a patch.
1965 if (RHSPatch == -1)
1966 return true;
1967 if (Patch == -1)
1968 return false;
1969
1970 // Otherwise just sort on the patch itself.
1971 return Patch < RHSPatch;
1972 }
1973 if (PatchSuffix != RHSPatchSuffix) {
1974 // Sort empty suffixes higher.
1975 if (RHSPatchSuffix.empty())
1976 return true;
1977 if (PatchSuffix.empty())
1978 return false;
1979
1980 // Provide a lexicographic sort to make this a total ordering.
1981 return PatchSuffix < RHSPatchSuffix;
1982 }
1983
1984 // The versions are equal.
1985 return false;
1986}
1987
1988/// Parse a GCCVersion object out of a string of text.
1989///
1990/// This is the primary means of forming GCCVersion objects.
1991/*static*/
1992Generic_GCC::GCCVersion Generic_GCC::GCCVersion::Parse(StringRef VersionText) {
1993 const GCCVersion BadVersion = {VersionText.str(), -1, -1, -1, "", "", ""};
1994 std::pair<StringRef, StringRef> First = VersionText.split('.');
1995 std::pair<StringRef, StringRef> Second = First.second.split('.');
1996
1997 StringRef MajorStr = First.first;
1998 StringRef MinorStr = Second.first;
1999 StringRef PatchStr = Second.second;
2000
2001 GCCVersion GoodVersion = {VersionText.str(), -1, -1, -1, "", "", ""};
2002
2003 // Parse version number strings such as:
2004 // 5
2005 // 4.4
2006 // 4.4-patched
2007 // 4.4.0
2008 // 4.4.x
2009 // 4.4.2-rc4
2010 // 4.4.x-patched
2011 // 10-win32
2012 // Split on '.', handle 1, 2 or 3 such segments. Each segment must contain
2013 // purely a number, except for the last one, where a non-number suffix
2014 // is stored in PatchSuffix. The third segment is allowed to not contain
2015 // a number at all.
2016
2017 auto TryParseLastNumber = [&](StringRef Segment, int &Number,
2018 std::string &OutStr) -> bool {
2019 // Look for a number prefix and parse that, and split out any trailing
2020 // string into GoodVersion.PatchSuffix.
2021
2022 if (size_t EndNumber = Segment.find_first_not_of("0123456789")) {
2023 StringRef NumberStr = Segment.slice(0, EndNumber);
2024 if (NumberStr.getAsInteger(10, Number) || Number < 0)
2025 return false;
2026 OutStr = NumberStr;
2027 GoodVersion.PatchSuffix = Segment.substr(EndNumber);
2028 return true;
2029 }
2030 return false;
2031 };
2032 auto TryParseNumber = [](StringRef Segment, int &Number) -> bool {
2033 if (Segment.getAsInteger(10, Number) || Number < 0)
2034 return false;
2035 return true;
2036 };
2037
2038 if (MinorStr.empty()) {
2039 // If no minor string, major is the last segment
2040 if (!TryParseLastNumber(MajorStr, GoodVersion.Major, GoodVersion.MajorStr))
2041 return BadVersion;
2042 return GoodVersion;
2043 }
2044
2045 if (!TryParseNumber(MajorStr, GoodVersion.Major))
2046 return BadVersion;
2047 GoodVersion.MajorStr = MajorStr;
2048
2049 if (PatchStr.empty()) {
2050 // If no patch string, minor is the last segment
2051 if (!TryParseLastNumber(MinorStr, GoodVersion.Minor, GoodVersion.MinorStr))
2052 return BadVersion;
2053 return GoodVersion;
2054 }
2055
2056 if (!TryParseNumber(MinorStr, GoodVersion.Minor))
2057 return BadVersion;
2058 GoodVersion.MinorStr = MinorStr;
2059
2060 // For the last segment, tolerate a missing number.
2061 std::string DummyStr;
2062 TryParseLastNumber(PatchStr, GoodVersion.Patch, DummyStr);
2063 return GoodVersion;
2064}
2065
2066static llvm::StringRef getGCCToolchainDir(const ArgList &Args,
2067 llvm::StringRef SysRoot) {
2068 const Arg *A = Args.getLastArg(clang::driver::options::OPT_gcc_toolchain);
2069 if (A)
2070 return A->getValue();
2071
2072 // If we have a SysRoot, ignore GCC_INSTALL_PREFIX.
2073 // GCC_INSTALL_PREFIX specifies the gcc installation for the default
2074 // sysroot and is likely not valid with a different sysroot.
2075 if (!SysRoot.empty())
2076 return "";
2077
2078 return GCC_INSTALL_PREFIX;
2079}
2080
2081/// Initialize a GCCInstallationDetector from the driver.
2082///
2083/// This performs all of the autodetection and sets up the various paths.
2084/// Once constructed, a GCCInstallationDetector is essentially immutable.
2085///
2086/// FIXME: We shouldn't need an explicit TargetTriple parameter here, and
2087/// should instead pull the target out of the driver. This is currently
2088/// necessary because the driver doesn't store the final version of the target
2089/// triple.
2090void Generic_GCC::GCCInstallationDetector::init(
2091 const llvm::Triple &TargetTriple, const ArgList &Args) {
2092 llvm::Triple BiarchVariantTriple = TargetTriple.isArch32Bit()
2093 ? TargetTriple.get64BitArchVariant()
2094 : TargetTriple.get32BitArchVariant();
2095 // The library directories which may contain GCC installations.
2096 SmallVector<StringRef, 4> CandidateLibDirs, CandidateBiarchLibDirs;
2097 // The compatible GCC triples for this particular architecture.
2098 SmallVector<StringRef, 16> CandidateTripleAliases;
2099 SmallVector<StringRef, 16> CandidateBiarchTripleAliases;
2100 // Add some triples that we want to check first.
2101 CandidateTripleAliases.push_back(TargetTriple.str());
2102 std::string TripleNoVendor = TargetTriple.getArchName().str() + "-" +
2103 TargetTriple.getOSAndEnvironmentName().str();
2104 if (TargetTriple.getVendor() == llvm::Triple::UnknownVendor)
2105 CandidateTripleAliases.push_back(TripleNoVendor);
2106
2107 CollectLibDirsAndTriples(TargetTriple, BiarchVariantTriple, CandidateLibDirs,
2108 CandidateTripleAliases, CandidateBiarchLibDirs,
2109 CandidateBiarchTripleAliases);
2110
2111 // If --gcc-install-dir= is specified, skip filesystem detection.
2112 if (const Arg *A =
2113 Args.getLastArg(clang::driver::options::OPT_gcc_install_dir_EQ);
2114 A && A->getValue()[0]) {
2115 StringRef InstallDir = A->getValue();
2116 if (!ScanGCCForMultilibs(TargetTriple, Args, InstallDir, false)) {
2117 D.Diag(diag::err_drv_invalid_gcc_install_dir) << InstallDir;
2118 } else {
2119 (void)InstallDir.consume_back("/");
2120 StringRef VersionText = llvm::sys::path::filename(InstallDir);
2121 StringRef TripleText =
2122 llvm::sys::path::filename(llvm::sys::path::parent_path(InstallDir));
2123
2124 Version = GCCVersion::Parse(VersionText);
2125 GCCTriple.setTriple(TripleText);
2126 GCCInstallPath = std::string(InstallDir);
2127 GCCParentLibPath = GCCInstallPath + "/../../..";
2128 IsValid = true;
2129 }
2130 return;
2131 }
2132
2133 // Compute the set of prefixes for our search.
2134 SmallVector<std::string, 8> Prefixes;
2135 StringRef GCCToolchainDir = getGCCToolchainDir(Args, D.SysRoot);
2136 if (GCCToolchainDir != "") {
2137 if (GCCToolchainDir.back() == '/')
2138 GCCToolchainDir = GCCToolchainDir.drop_back(); // remove the /
2139
2140 Prefixes.push_back(std::string(GCCToolchainDir));
2141 } else {
2142 // If we have a SysRoot, try that first.
2143 if (!D.SysRoot.empty()) {
2144 Prefixes.push_back(D.SysRoot);
2145 AddDefaultGCCPrefixes(TargetTriple, Prefixes, D.SysRoot);
2146 }
2147
2148 // Then look for gcc installed alongside clang.
2149 Prefixes.push_back(D.InstalledDir + "/..");
2150
2151 // Next, look for prefix(es) that correspond to distribution-supplied gcc
2152 // installations.
2153 if (D.SysRoot.empty()) {
2154 // Typically /usr.
2155 AddDefaultGCCPrefixes(TargetTriple, Prefixes, D.SysRoot);
2156 }
2157
2158 // Try to respect gcc-config on Gentoo if --gcc-toolchain is not provided.
2159 // This avoids accidentally enforcing the system GCC version when using a
2160 // custom toolchain.
2161 SmallVector<StringRef, 16> GentooTestTriples;
2162 // Try to match an exact triple as target triple first.
2163 // e.g. crossdev -S x86_64-gentoo-linux-gnu will install gcc libs for
2164 // x86_64-gentoo-linux-gnu. But "clang -target x86_64-gentoo-linux-gnu"
2165 // may pick the libraries for x86_64-pc-linux-gnu even when exact matching
2166 // triple x86_64-gentoo-linux-gnu is present.
2167 GentooTestTriples.push_back(TargetTriple.str());
2168 GentooTestTriples.append(CandidateTripleAliases.begin(),
2169 CandidateTripleAliases.end());
2170 if (ScanGentooConfigs(TargetTriple, Args, GentooTestTriples,
2171 CandidateBiarchTripleAliases))
2172 return;
2173 }
2174
2175 // Loop over the various components which exist and select the best GCC
2176 // installation available. GCC installs are ranked by version number.
2177 const GCCVersion VersionZero = GCCVersion::Parse("0.0.0");
2178 Version = VersionZero;
2179 for (const std::string &Prefix : Prefixes) {
2180 auto &VFS = D.getVFS();
2181 if (!VFS.exists(Prefix))
2182 continue;
2183 for (StringRef Suffix : CandidateLibDirs) {
2184 const std::string LibDir = concat(Prefix, Suffix);
2185 if (!VFS.exists(LibDir))
2186 continue;
2187 // Maybe filter out <libdir>/gcc and <libdir>/gcc-cross.
2188 bool GCCDirExists = VFS.exists(LibDir + "/gcc");
2189 bool GCCCrossDirExists = VFS.exists(LibDir + "/gcc-cross");
2190 for (StringRef Candidate : CandidateTripleAliases)
2191 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate, false,
2192 GCCDirExists, GCCCrossDirExists);
2193 }
2194 for (StringRef Suffix : CandidateBiarchLibDirs) {
2195 const std::string LibDir = Prefix + Suffix.str();
2196 if (!VFS.exists(LibDir))
2197 continue;
2198 bool GCCDirExists = VFS.exists(LibDir + "/gcc");
2199 bool GCCCrossDirExists = VFS.exists(LibDir + "/gcc-cross");
2200 for (StringRef Candidate : CandidateBiarchTripleAliases)
2201 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate, true,
2202 GCCDirExists, GCCCrossDirExists);
2203 }
2204
2205 // Skip other prefixes once a GCC installation is found.
2206 if (Version > VersionZero)
2207 break;
2208 }
2209}
2210
2211void Generic_GCC::GCCInstallationDetector::print(raw_ostream &OS) const {
2212 for (const auto &InstallPath : CandidateGCCInstallPaths)
2213 OS << "Found candidate GCC installation: " << InstallPath << "\n";
2214
2215 if (!GCCInstallPath.empty())
2216 OS << "Selected GCC installation: " << GCCInstallPath << "\n";
2217
2218 for (const auto &Multilib : Multilibs)
2219 OS << "Candidate multilib: " << Multilib << "\n";
2220
2221 if (Multilibs.size() != 0 || !SelectedMultilib.isDefault())
2222 OS << "Selected multilib: " << SelectedMultilib << "\n";
2223}
2224
2225bool Generic_GCC::GCCInstallationDetector::getBiarchSibling(Multilib &M) const {
2226 if (BiarchSibling) {
2227 M = *BiarchSibling;
2228 return true;
2229 }
2230 return false;
2231}
2232
2233void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
2234 const llvm::Triple &TargetTriple, SmallVectorImpl<std::string> &Prefixes,
2235 StringRef SysRoot) {
2236
2237 if (TargetTriple.isOSHaiku()) {
2238 Prefixes.push_back(concat(SysRoot, "/boot/system/develop/tools"));
2239 return;
2240 }
2241
2242 if (TargetTriple.isOSSolaris()) {
2243 // Solaris is a special case.
2244 // The GCC installation is under
2245 // /usr/gcc/<major>.<minor>/lib/gcc/<triple>/<major>.<minor>.<patch>/
2246 // so we need to find those /usr/gcc/*/lib/gcc libdirs and go with
2247 // /usr/gcc/<version> as a prefix.
2248
2249 SmallVector<std::pair<GCCVersion, std::string>, 8> SolarisPrefixes;
2250 std::string PrefixDir = concat(SysRoot, "/usr/gcc");
2251 std::error_code EC;
2252 for (llvm::vfs::directory_iterator LI = D.getVFS().dir_begin(PrefixDir, EC),
2253 LE;
2254 !EC && LI != LE; LI = LI.increment(EC)) {
2255 StringRef VersionText = llvm::sys::path::filename(LI->path());
2256 GCCVersion CandidateVersion = GCCVersion::Parse(VersionText);
2257
2258 // Filter out obviously bad entries.
2259 if (CandidateVersion.Major == -1 || CandidateVersion.isOlderThan(4, 1, 1))
2260 continue;
2261
2262 std::string CandidatePrefix = PrefixDir + "/" + VersionText.str();
2263 std::string CandidateLibPath = CandidatePrefix + "/lib/gcc";
2264 if (!D.getVFS().exists(CandidateLibPath))
2265 continue;
2266
2267 SolarisPrefixes.emplace_back(
2268 std::make_pair(CandidateVersion, CandidatePrefix));
2269 }
2270 // Sort in reverse order so GCCInstallationDetector::init picks the latest.
2271 std::sort(SolarisPrefixes.rbegin(), SolarisPrefixes.rend());
2272 for (auto p : SolarisPrefixes)
2273 Prefixes.emplace_back(p.second);
2274 return;
2275 }
2276
2277 // For Linux, if --sysroot is not specified, look for RHEL/CentOS devtoolsets
2278 // and gcc-toolsets.
2279 if (SysRoot.empty() && TargetTriple.getOS() == llvm::Triple::Linux &&
2280 D.getVFS().exists("/opt/rh")) {
2281 // TODO: We may want to remove this, since the functionality
2282 // can be achieved using config files.
2283 Prefixes.push_back("/opt/rh/gcc-toolset-12/root/usr");
2284 Prefixes.push_back("/opt/rh/gcc-toolset-11/root/usr");
2285 Prefixes.push_back("/opt/rh/gcc-toolset-10/root/usr");
2286 Prefixes.push_back("/opt/rh/devtoolset-12/root/usr");
2287 Prefixes.push_back("/opt/rh/devtoolset-11/root/usr");
2288 Prefixes.push_back("/opt/rh/devtoolset-10/root/usr");
2289 Prefixes.push_back("/opt/rh/devtoolset-9/root/usr");
2290 Prefixes.push_back("/opt/rh/devtoolset-8/root/usr");
2291 Prefixes.push_back("/opt/rh/devtoolset-7/root/usr");
2292 Prefixes.push_back("/opt/rh/devtoolset-6/root/usr");
2293 Prefixes.push_back("/opt/rh/devtoolset-4/root/usr");
2294 Prefixes.push_back("/opt/rh/devtoolset-3/root/usr");
2295 Prefixes.push_back("/opt/rh/devtoolset-2/root/usr");
2296 }
2297
2298 // Fall back to /usr which is used by most non-Solaris systems.
2299 Prefixes.push_back(concat(SysRoot, "/usr"));
2300}
2301
2302/*static*/ void Generic_GCC::GCCInstallationDetector::CollectLibDirsAndTriples(
2303 const llvm::Triple &TargetTriple, const llvm::Triple &BiarchTriple,
2304 SmallVectorImpl<StringRef> &LibDirs,
2305 SmallVectorImpl<StringRef> &TripleAliases,
2306 SmallVectorImpl<StringRef> &BiarchLibDirs,
2307 SmallVectorImpl<StringRef> &BiarchTripleAliases) {
2308 // Declare a bunch of static data sets that we'll select between below. These
2309 // are specifically designed to always refer to string literals to avoid any
2310 // lifetime or initialization issues.
2311 //
2312 // The *Triples variables hard code some triples so that, for example,
2313 // --target=aarch64 (incomplete triple) can detect lib/aarch64-linux-gnu.
2314 // They are not needed when the user has correct LLVM_DEFAULT_TARGET_TRIPLE
2315 // and always uses the full --target (e.g. --target=aarch64-linux-gnu). The
2316 // lists should shrink over time. Please don't add more elements to *Triples.
2317 static const char *const AArch64LibDirs[] = {"/lib64", "/lib"};
2318 static const char *const AArch64Triples[] = {
2319 "aarch64-none-linux-gnu", "aarch64-linux-gnu", "aarch64-redhat-linux",
2320 "aarch64-suse-linux"};
2321 static const char *const AArch64beLibDirs[] = {"/lib"};
2322 static const char *const AArch64beTriples[] = {"aarch64_be-none-linux-gnu",
2323 "aarch64_be-linux-gnu"};
2324
2325 static const char *const ARMLibDirs[] = {"/lib"};
2326 static const char *const ARMTriples[] = {"arm-linux-gnueabi"};
2327 static const char *const ARMHFTriples[] = {"arm-linux-gnueabihf",
2328 "armv7hl-redhat-linux-gnueabi",
2329 "armv6hl-suse-linux-gnueabi",
2330 "armv7hl-suse-linux-gnueabi"};
2331 static const char *const ARMebLibDirs[] = {"/lib"};
2332 static const char *const ARMebTriples[] = {"armeb-linux-gnueabi"};
2333 static const char *const ARMebHFTriples[] = {
2334 "armeb-linux-gnueabihf", "armebv7hl-redhat-linux-gnueabi"};
2335
2336 static const char *const AVRLibDirs[] = {"/lib"};
2337 static const char *const AVRTriples[] = {"avr"};
2338
2339 static const char *const CSKYLibDirs[] = {"/lib"};
2340 static const char *const CSKYTriples[] = {
2341 "csky-linux-gnuabiv2", "csky-linux-uclibcabiv2", "csky-elf-noneabiv2"};
2342
2343 static const char *const X86_64LibDirs[] = {"/lib64", "/lib"};
2344 static const char *const X86_64Triples[] = {
2345 "x86_64-linux-gnu", "x86_64-unknown-linux-gnu",
2346 "x86_64-pc-linux-gnu", "x86_64-redhat-linux6E",
2347 "x86_64-redhat-linux", "x86_64-suse-linux",
2348 "x86_64-manbo-linux-gnu", "x86_64-linux-gnu",
2349 "x86_64-slackware-linux", "x86_64-unknown-linux",
2350 "x86_64-amazon-linux"};
2351 static const char *const X32Triples[] = {"x86_64-linux-gnux32",
2352 "x86_64-pc-linux-gnux32"};
2353 static const char *const X32LibDirs[] = {"/libx32", "/lib"};
2354 static const char *const X86LibDirs[] = {"/lib32", "/lib"};
2355 static const char *const X86Triples[] = {
2356 "i586-linux-gnu", "i686-linux-gnu", "i686-pc-linux-gnu",
2357 "i386-redhat-linux6E", "i686-redhat-linux", "i386-redhat-linux",
2358 "i586-suse-linux", "i686-montavista-linux", "i686-gnu",
2359 };
2360
2361 static const char *const LoongArch64LibDirs[] = {"/lib64", "/lib"};
2362 static const char *const LoongArch64Triples[] = {
2363 "loongarch64-linux-gnu", "loongarch64-unknown-linux-gnu"};
2364
2365 static const char *const M68kLibDirs[] = {"/lib"};
2366 static const char *const M68kTriples[] = {
2367 "m68k-linux-gnu", "m68k-unknown-linux-gnu", "m68k-suse-linux"};
2368
2369 static const char *const MIPSLibDirs[] = {"/libo32", "/lib"};
2370 static const char *const MIPSTriples[] = {
2371 "mips-linux-gnu", "mips-mti-linux", "mips-mti-linux-gnu",
2372 "mips-img-linux-gnu", "mipsisa32r6-linux-gnu"};
2373 static const char *const MIPSELLibDirs[] = {"/libo32", "/lib"};
2374 static const char *const MIPSELTriples[] = {
2375 "mipsel-linux-gnu", "mips-img-linux-gnu", "mipsisa32r6el-linux-gnu"};
2376
2377 static const char *const MIPS64LibDirs[] = {"/lib64", "/lib"};
2378 static const char *const MIPS64Triples[] = {
2379 "mips64-linux-gnu", "mips-mti-linux-gnu",
2380 "mips-img-linux-gnu", "mips64-linux-gnuabi64",
2381 "mipsisa64r6-linux-gnu", "mipsisa64r6-linux-gnuabi64"};
2382 static const char *const MIPS64ELLibDirs[] = {"/lib64", "/lib"};
2383 static const char *const MIPS64ELTriples[] = {
2384 "mips64el-linux-gnu", "mips-mti-linux-gnu",
2385 "mips-img-linux-gnu", "mips64el-linux-gnuabi64",
2386 "mipsisa64r6el-linux-gnu", "mipsisa64r6el-linux-gnuabi64"};
2387
2388 static const char *const MIPSN32LibDirs[] = {"/lib32"};
2389 static const char *const MIPSN32Triples[] = {"mips64-linux-gnuabin32",
2390 "mipsisa64r6-linux-gnuabin32"};
2391 static const char *const MIPSN32ELLibDirs[] = {"/lib32"};
2392 static const char *const MIPSN32ELTriples[] = {
2393 "mips64el-linux-gnuabin32", "mipsisa64r6el-linux-gnuabin32"};
2394
2395 static const char *const MSP430LibDirs[] = {"/lib"};
2396 static const char *const MSP430Triples[] = {"msp430-elf"};
2397
2398 static const char *const PPCLibDirs[] = {"/lib32", "/lib"};
2399 static const char *const PPCTriples[] = {
2400 "powerpc-linux-gnu", "powerpc-unknown-linux-gnu", "powerpc-linux-gnuspe",
2401 // On 32-bit PowerPC systems running SUSE Linux, gcc is configured as a
2402 // 64-bit compiler which defaults to "-m32", hence "powerpc64-suse-linux".
2403 "powerpc64-suse-linux", "powerpc-montavista-linuxspe"};
2404 static const char *const PPCLELibDirs[] = {"/lib32", "/lib"};
2405 static const char *const PPCLETriples[] = {"powerpcle-linux-gnu",
2406 "powerpcle-unknown-linux-gnu",
2407 "powerpcle-linux-musl"};
2408
2409 static const char *const PPC64LibDirs[] = {"/lib64", "/lib"};
2410 static const char *const PPC64Triples[] = {
2411 "powerpc64-linux-gnu", "powerpc64-unknown-linux-gnu",
2412 "powerpc64-suse-linux", "ppc64-redhat-linux"};
2413 static const char *const PPC64LELibDirs[] = {"/lib64", "/lib"};
2414 static const char *const PPC64LETriples[] = {
2415 "powerpc64le-linux-gnu", "powerpc64le-unknown-linux-gnu",
2416 "powerpc64le-none-linux-gnu", "powerpc64le-suse-linux",
2417 "ppc64le-redhat-linux"};
2418
2419 static const char *const RISCV32LibDirs[] = {"/lib32", "/lib"};
2420 static const char *const RISCV32Triples[] = {"riscv32-unknown-linux-gnu",
2421 "riscv32-linux-gnu",
2422 "riscv32-unknown-elf"};
2423 static const char *const RISCV64LibDirs[] = {"/lib64", "/lib"};
2424 static const char *const RISCV64Triples[] = {"riscv64-unknown-linux-gnu",
2425 "riscv64-linux-gnu",
2426 "riscv64-unknown-elf"};
2427
2428 static const char *const SPARCv8LibDirs[] = {"/lib32", "/lib"};
2429 static const char *const SPARCv8Triples[] = {"sparc-linux-gnu",
2430 "sparcv8-linux-gnu"};
2431 static const char *const SPARCv9LibDirs[] = {"/lib64", "/lib"};
2432 static const char *const SPARCv9Triples[] = {"sparc64-linux-gnu",
2433 "sparcv9-linux-gnu"};
2434
2435 static const char *const SystemZLibDirs[] = {"/lib64", "/lib"};
2436 static const char *const SystemZTriples[] = {
2437 "s390x-linux-gnu", "s390x-unknown-linux-gnu", "s390x-ibm-linux-gnu",
2438 "s390x-suse-linux", "s390x-redhat-linux"};
2439
2440
2441 using std::begin;
2442 using std::end;
2443
2444 if (TargetTriple.isOSSolaris()) {
2445 static const char *const SolarisLibDirs[] = {"/lib"};
2446 static const char *const SolarisSparcV8Triples[] = {
2447 "sparc-sun-solaris2.11"};
2448 static const char *const SolarisSparcV9Triples[] = {
2449 "sparcv9-sun-solaris2.11"};
2450 static const char *const SolarisX86Triples[] = {"i386-pc-solaris2.11"};
2451 static const char *const SolarisX86_64Triples[] = {"x86_64-pc-solaris2.11"};
2452 LibDirs.append(begin(SolarisLibDirs), end(SolarisLibDirs));
2453 BiarchLibDirs.append(begin(SolarisLibDirs), end(SolarisLibDirs));
2454 switch (TargetTriple.getArch()) {
2455 case llvm::Triple::x86:
2456 TripleAliases.append(begin(SolarisX86Triples), end(SolarisX86Triples));
2457 BiarchTripleAliases.append(begin(SolarisX86_64Triples),
2458 end(SolarisX86_64Triples));
2459 break;
2460 case llvm::Triple::x86_64:
2461 TripleAliases.append(begin(SolarisX86_64Triples),
2462 end(SolarisX86_64Triples));
2463 BiarchTripleAliases.append(begin(SolarisX86Triples),
2464 end(SolarisX86Triples));
2465 break;
2466 case llvm::Triple::sparc:
2467 TripleAliases.append(begin(SolarisSparcV8Triples),
2468 end(SolarisSparcV8Triples));
2469 BiarchTripleAliases.append(begin(SolarisSparcV9Triples),
2470 end(SolarisSparcV9Triples));
2471 break;
2472 case llvm::Triple::sparcv9:
2473 TripleAliases.append(begin(SolarisSparcV9Triples),
2474 end(SolarisSparcV9Triples));
2475 BiarchTripleAliases.append(begin(SolarisSparcV8Triples),
2476 end(SolarisSparcV8Triples));
2477 break;
2478 default:
2479 break;
2480 }
2481 return;
2482 }
2483
2484 // Android targets should not use GNU/Linux tools or libraries.
2485 if (TargetTriple.isAndroid()) {
2486 static const char *const AArch64AndroidTriples[] = {
2487 "aarch64-linux-android"};
2488 static const char *const ARMAndroidTriples[] = {"arm-linux-androideabi"};
2489 static const char *const X86AndroidTriples[] = {"i686-linux-android"};
2490 static const char *const X86_64AndroidTriples[] = {"x86_64-linux-android"};
2491
2492 switch (TargetTriple.getArch()) {
2493 case llvm::Triple::aarch64:
2494 LibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
2495 TripleAliases.append(begin(AArch64AndroidTriples),
2496 end(AArch64AndroidTriples));
2497 break;
2498 case llvm::Triple::arm:
2499 case llvm::Triple::thumb:
2500 LibDirs.append(begin(ARMLibDirs), end(ARMLibDirs));
2501 TripleAliases.append(begin(ARMAndroidTriples), end(ARMAndroidTriples));
2502 break;
2503 case llvm::Triple::x86_64:
2504 LibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2505 TripleAliases.append(begin(X86_64AndroidTriples),
2506 end(X86_64AndroidTriples));
2507 BiarchLibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2508 BiarchTripleAliases.append(begin(X86AndroidTriples),
2509 end(X86AndroidTriples));
2510 break;
2511 case llvm::Triple::x86:
2512 LibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2513 TripleAliases.append(begin(X86AndroidTriples), end(X86AndroidTriples));
2514 BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2515 BiarchTripleAliases.append(begin(X86_64AndroidTriples),
2516 end(X86_64AndroidTriples));
2517 break;
2518 default:
2519 break;
2520 }
2521
2522 return;
2523 }
2524
2525 switch (TargetTriple.getArch()) {
2526 case llvm::Triple::aarch64:
2527 LibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
2528 TripleAliases.append(begin(AArch64Triples), end(AArch64Triples));
2529 BiarchLibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
2530 BiarchTripleAliases.append(begin(AArch64Triples), end(AArch64Triples));
2531 break;
2532 case llvm::Triple::aarch64_be:
2533 LibDirs.append(begin(AArch64beLibDirs), end(AArch64beLibDirs));
2534 TripleAliases.append(begin(AArch64beTriples), end(AArch64beTriples));
2535 BiarchLibDirs.append(begin(AArch64beLibDirs), end(AArch64beLibDirs));
2536 BiarchTripleAliases.append(begin(AArch64beTriples), end(AArch64beTriples));
2537 break;
2538 case llvm::Triple::arm:
2539 case llvm::Triple::thumb:
2540 LibDirs.append(begin(ARMLibDirs), end(ARMLibDirs));
2541 if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF) {
2542 TripleAliases.append(begin(ARMHFTriples), end(ARMHFTriples));
2543 } else {
2544 TripleAliases.append(begin(ARMTriples), end(ARMTriples));
2545 }
2546 break;
2547 case llvm::Triple::armeb:
2548 case llvm::Triple::thumbeb:
2549 LibDirs.append(begin(ARMebLibDirs), end(ARMebLibDirs));
2550 if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF) {
2551 TripleAliases.append(begin(ARMebHFTriples), end(ARMebHFTriples));
2552 } else {
2553 TripleAliases.append(begin(ARMebTriples), end(ARMebTriples));
2554 }
2555 break;
2556 case llvm::Triple::avr:
2557 LibDirs.append(begin(AVRLibDirs), end(AVRLibDirs));
2558 TripleAliases.append(begin(AVRTriples), end(AVRTriples));
2559 break;
2560 case llvm::Triple::csky:
2561 LibDirs.append(begin(CSKYLibDirs), end(CSKYLibDirs));
2562 TripleAliases.append(begin(CSKYTriples), end(CSKYTriples));
2563 break;
2564 case llvm::Triple::x86_64:
2565 if (TargetTriple.isX32()) {
2566 LibDirs.append(begin(X32LibDirs), end(X32LibDirs));
2567 TripleAliases.append(begin(X32Triples), end(X32Triples));
2568 BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2569 BiarchTripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
2570 } else {
2571 LibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2572 TripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
2573 BiarchLibDirs.append(begin(X32LibDirs), end(X32LibDirs));
2574 BiarchTripleAliases.append(begin(X32Triples), end(X32Triples));
2575 }
2576 BiarchLibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2577 BiarchTripleAliases.append(begin(X86Triples), end(X86Triples));
2578 break;
2579 case llvm::Triple::x86:
2580 LibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2581 // MCU toolchain is 32 bit only and its triple alias is TargetTriple
2582 // itself, which will be appended below.
2583 if (!TargetTriple.isOSIAMCU()) {
2584 TripleAliases.append(begin(X86Triples), end(X86Triples));
2585 BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2586 BiarchTripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
2587 BiarchLibDirs.append(begin(X32LibDirs), end(X32LibDirs));
2588 BiarchTripleAliases.append(begin(X32Triples), end(X32Triples));
2589 }
2590 break;
2591 // TODO: Handle loongarch32.
2592 case llvm::Triple::loongarch64:
2593 LibDirs.append(begin(LoongArch64LibDirs), end(LoongArch64LibDirs));
2594 TripleAliases.append(begin(LoongArch64Triples), end(LoongArch64Triples));
2595 break;
2596 case llvm::Triple::m68k:
2597 LibDirs.append(begin(M68kLibDirs), end(M68kLibDirs));
2598 TripleAliases.append(begin(M68kTriples), end(M68kTriples));
2599 break;
2600 case llvm::Triple::mips:
2601 LibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs));
2602 TripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2603 BiarchLibDirs.append(begin(MIPS64LibDirs), end(MIPS64LibDirs));
2604 BiarchTripleAliases.append(begin(MIPS64Triples), end(MIPS64Triples));
2605 BiarchLibDirs.append(begin(MIPSN32LibDirs), end(MIPSN32LibDirs));
2606 BiarchTripleAliases.append(begin(MIPSN32Triples), end(MIPSN32Triples));
2607 break;
2608 case llvm::Triple::mipsel:
2609 LibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs));
2610 TripleAliases.append(begin(MIPSELTriples), end(MIPSELTriples));
2611 TripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2612 BiarchLibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs));
2613 BiarchTripleAliases.append(begin(MIPS64ELTriples), end(MIPS64ELTriples));
2614 BiarchLibDirs.append(begin(MIPSN32ELLibDirs), end(MIPSN32ELLibDirs));
2615 BiarchTripleAliases.append(begin(MIPSN32ELTriples), end(MIPSN32ELTriples));
2616 break;
2617 case llvm::Triple::mips64:
2618 LibDirs.append(begin(MIPS64LibDirs), end(MIPS64LibDirs));
2619 TripleAliases.append(begin(MIPS64Triples), end(MIPS64Triples));
2620 BiarchLibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs));
2621 BiarchTripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2622 BiarchLibDirs.append(begin(MIPSN32LibDirs), end(MIPSN32LibDirs));
2623 BiarchTripleAliases.append(begin(MIPSN32Triples), end(MIPSN32Triples));
2624 break;
2625 case llvm::Triple::mips64el:
2626 LibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs));
2627 TripleAliases.append(begin(MIPS64ELTriples), end(MIPS64ELTriples));
2628 BiarchLibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs));
2629 BiarchTripleAliases.append(begin(MIPSELTriples), end(MIPSELTriples));
2630 BiarchLibDirs.append(begin(MIPSN32ELLibDirs), end(MIPSN32ELLibDirs));
2631 BiarchTripleAliases.append(begin(MIPSN32ELTriples), end(MIPSN32ELTriples));
2632 BiarchTripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2633 break;
2634 case llvm::Triple::msp430:
2635 LibDirs.append(begin(MSP430LibDirs), end(MSP430LibDirs));
2636 TripleAliases.append(begin(MSP430Triples), end(MSP430Triples));
2637 break;
2638 case llvm::Triple::ppc:
2639 LibDirs.append(begin(PPCLibDirs), end(PPCLibDirs));
2640 TripleAliases.append(begin(PPCTriples), end(PPCTriples));
2641 BiarchLibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs));
2642 BiarchTripleAliases.append(begin(PPC64Triples), end(PPC64Triples));
2643 break;
2644 case llvm::Triple::ppcle:
2645 LibDirs.append(begin(PPCLELibDirs), end(PPCLELibDirs));
2646 TripleAliases.append(begin(PPCLETriples), end(PPCLETriples));
2647 BiarchLibDirs.append(begin(PPC64LELibDirs), end(PPC64LELibDirs));
2648 BiarchTripleAliases.append(begin(PPC64LETriples), end(PPC64LETriples));
2649 break;
2650 case llvm::Triple::ppc64:
2651 LibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs));
2652 TripleAliases.append(begin(PPC64Triples), end(PPC64Triples));
2653 BiarchLibDirs.append(begin(PPCLibDirs), end(PPCLibDirs));
2654 BiarchTripleAliases.append(begin(PPCTriples), end(PPCTriples));
2655 break;
2656 case llvm::Triple::ppc64le:
2657 LibDirs.append(begin(PPC64LELibDirs), end(PPC64LELibDirs));
2658 TripleAliases.append(begin(PPC64LETriples), end(PPC64LETriples));
2659 BiarchLibDirs.append(begin(PPCLELibDirs), end(PPCLELibDirs));
2660 BiarchTripleAliases.append(begin(PPCLETriples), end(PPCLETriples));
2661 break;
2662 case llvm::Triple::riscv32:
2663 LibDirs.append(begin(RISCV32LibDirs), end(RISCV32LibDirs));
2664 TripleAliases.append(begin(RISCV32Triples), end(RISCV32Triples));
2665 BiarchLibDirs.append(begin(RISCV64LibDirs), end(RISCV64LibDirs));
2666 BiarchTripleAliases.append(begin(RISCV64Triples), end(RISCV64Triples));
2667 break;
2668 case llvm::Triple::riscv64:
2669 LibDirs.append(begin(RISCV64LibDirs), end(RISCV64LibDirs));
2670 TripleAliases.append(begin(RISCV64Triples), end(RISCV64Triples));
2671 BiarchLibDirs.append(begin(RISCV32LibDirs), end(RISCV32LibDirs));
2672 BiarchTripleAliases.append(begin(RISCV32Triples), end(RISCV32Triples));
2673 break;
2674 case llvm::Triple::sparc:
2675 case llvm::Triple::sparcel:
2676 LibDirs.append(begin(SPARCv8LibDirs), end(SPARCv8LibDirs));
2677 TripleAliases.append(begin(SPARCv8Triples), end(SPARCv8Triples));
2678 BiarchLibDirs.append(begin(SPARCv9LibDirs), end(SPARCv9LibDirs));
2679 BiarchTripleAliases.append(begin(SPARCv9Triples), end(SPARCv9Triples));
2680 break;
2681 case llvm::Triple::sparcv9:
2682 LibDirs.append(begin(SPARCv9LibDirs), end(SPARCv9LibDirs));
2683 TripleAliases.append(begin(SPARCv9Triples), end(SPARCv9Triples));
2684 BiarchLibDirs.append(begin(SPARCv8LibDirs), end(SPARCv8LibDirs));
2685 BiarchTripleAliases.append(begin(SPARCv8Triples), end(SPARCv8Triples));
2686 break;
2687 case llvm::Triple::systemz:
2688 LibDirs.append(begin(SystemZLibDirs), end(SystemZLibDirs));
2689 TripleAliases.append(begin(SystemZTriples), end(SystemZTriples));
2690 break;
2691 default:
2692 // By default, just rely on the standard lib directories and the original
2693 // triple.
2694 break;
2695 }
2696
2697 // Also include the multiarch variant if it's different.
2698 if (TargetTriple.str() != BiarchTriple.str())
2699 BiarchTripleAliases.push_back(BiarchTriple.str());
2700}
2701
2702bool Generic_GCC::GCCInstallationDetector::ScanGCCForMultilibs(
2703 const llvm::Triple &TargetTriple, const ArgList &Args,
2704 StringRef Path, bool NeedsBiarchSuffix) {
2705 llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
2706 DetectedMultilibs Detected;
2707
2708 // Android standalone toolchain could have multilibs for ARM and Thumb.
2709 // Debian mips multilibs behave more like the rest of the biarch ones,
2710 // so handle them there
2711 if (isArmOrThumbArch(TargetArch) && TargetTriple.isAndroid()) {
2712 // It should also work without multilibs in a simplified toolchain.
2713 findAndroidArmMultilibs(D, TargetTriple, Path, Args, Detected);
2714 } else if (TargetTriple.isCSKY()) {
2715 findCSKYMultilibs(D, TargetTriple, Path, Args, Detected);
2716 } else if (TargetTriple.isMIPS()) {
2717 if (!findMIPSMultilibs(D, TargetTriple, Path, Args, Detected))
2718 return false;
2719 } else if (TargetTriple.isRISCV()) {
2720 findRISCVMultilibs(D, TargetTriple, Path, Args, Detected);
2721 } else if (isMSP430(TargetArch)) {
2722 findMSP430Multilibs(D, TargetTriple, Path, Args, Detected);
2723 } else if (TargetArch == llvm::Triple::avr) {
2724 // AVR has no multilibs.
2725 } else if (!findBiarchMultilibs(D, TargetTriple, Path, Args,
2726 NeedsBiarchSuffix, Detected)) {
2727 return false;
2728 }
2729
2730 Multilibs = Detected.Multilibs;
2731 SelectedMultilib = Detected.SelectedMultilibs.empty()
2732 ? Multilib()
2733 : Detected.SelectedMultilibs.back();
2734 BiarchSibling = Detected.BiarchSibling;
2735
2736 return true;
2737}
2738
2739void Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple(
2740 const llvm::Triple &TargetTriple, const ArgList &Args,
2741 const std::string &LibDir, StringRef CandidateTriple,
2742 bool NeedsBiarchSuffix, bool GCCDirExists, bool GCCCrossDirExists) {
2743 // Locations relative to the system lib directory where GCC's triple-specific
2744 // directories might reside.
2745 struct GCCLibSuffix {
2746 // Path from system lib directory to GCC triple-specific directory.
2747 std::string LibSuffix;
2748 // Path from GCC triple-specific directory back to system lib directory.
2749 // This is one '..' component per component in LibSuffix.
2750 StringRef ReversePath;
2751 // Whether this library suffix is relevant for the triple.
2752 bool Active;
2753 } Suffixes[] = {
2754 // This is the normal place.
2755 {"gcc/" + CandidateTriple.str(), "../..", GCCDirExists},
2756
2757 // Debian puts cross-compilers in gcc-cross.
2758 {"gcc-cross/" + CandidateTriple.str(), "../..", GCCCrossDirExists},
2759
2760 // The Freescale PPC SDK has the gcc libraries in
2761 // <sysroot>/usr/lib/<triple>/x.y.z so have a look there as well. Only do
2762 // this on Freescale triples, though, since some systems put a *lot* of
2763 // files in that location, not just GCC installation data.
2764 {CandidateTriple.str(), "..",
2765 TargetTriple.getVendor() == llvm::Triple::Freescale ||
2766 TargetTriple.getVendor() == llvm::Triple::OpenEmbedded}};
2767
2768 for (auto &Suffix : Suffixes) {
2769 if (!Suffix.Active)
2770 continue;
2771
2772 StringRef LibSuffix = Suffix.LibSuffix;
2773 std::error_code EC;
2774 for (llvm::vfs::directory_iterator
2775 LI = D.getVFS().dir_begin(LibDir + "/" + LibSuffix, EC),
2776 LE;
2777 !EC && LI != LE; LI = LI.increment(EC)) {
2778 StringRef VersionText = llvm::sys::path::filename(LI->path());
2779 GCCVersion CandidateVersion = GCCVersion::Parse(VersionText);
2780 if (CandidateVersion.Major != -1) // Filter obviously bad entries.
2781 if (!CandidateGCCInstallPaths.insert(std::string(LI->path())).second)
2782 continue; // Saw this path before; no need to look at it again.
2783 if (CandidateVersion.isOlderThan(4, 1, 1))
2784 continue;
2785 if (CandidateVersion <= Version)
2786 continue;
2787
2788 if (!ScanGCCForMultilibs(TargetTriple, Args, LI->path(),
2789 NeedsBiarchSuffix))
2790 continue;
2791
2792 Version = CandidateVersion;
2793 GCCTriple.setTriple(CandidateTriple);
2794 // FIXME: We hack together the directory name here instead of
2795 // using LI to ensure stable path separators across Windows and
2796 // Linux.
2797 GCCInstallPath = (LibDir + "/" + LibSuffix + "/" + VersionText).str();
2798 GCCParentLibPath = (GCCInstallPath + "/../" + Suffix.ReversePath).str();
2799 IsValid = true;
2800 }
2801 }
2802}
2803
2804bool Generic_GCC::GCCInstallationDetector::ScanGentooConfigs(
2805 const llvm::Triple &TargetTriple, const ArgList &Args,
2806 const SmallVectorImpl<StringRef> &CandidateTriples,
2807 const SmallVectorImpl<StringRef> &CandidateBiarchTriples) {
2808 if (!D.getVFS().exists(concat(D.SysRoot, GentooConfigDir)))
2809 return false;
2810
2811 for (StringRef CandidateTriple : CandidateTriples) {
2812 if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple))
2813 return true;
2814 }
2815
2816 for (StringRef CandidateTriple : CandidateBiarchTriples) {
2817 if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple, true))
2818 return true;
2819 }
2820 return false;
2821}
2822
2823bool Generic_GCC::GCCInstallationDetector::ScanGentooGccConfig(
2824 const llvm::Triple &TargetTriple, const ArgList &Args,
2825 StringRef CandidateTriple, bool NeedsBiarchSuffix) {
2826 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> File =
2827 D.getVFS().getBufferForFile(concat(D.SysRoot, GentooConfigDir,
2828 "/config-" + CandidateTriple.str()));
2829 if (File) {
2830 SmallVector<StringRef, 2> Lines;
2831 File.get()->getBuffer().split(Lines, "\n");
2832 for (StringRef Line : Lines) {
2833 Line = Line.trim();
2834 // CURRENT=triple-version
2835 if (!Line.consume_front("CURRENT="))
2836 continue;
2837 // Process the config file pointed to by CURRENT.
2838 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> ConfigFile =
2839 D.getVFS().getBufferForFile(
2840 concat(D.SysRoot, GentooConfigDir, "/" + Line));
2841 std::pair<StringRef, StringRef> ActiveVersion = Line.rsplit('-');
2842 // List of paths to scan for libraries.
2843 SmallVector<StringRef, 4> GentooScanPaths;
2844 // Scan the Config file to find installed GCC libraries path.
2845 // Typical content of the GCC config file:
2846 // LDPATH="/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.x:/usr/lib/gcc/
2847 // (continued from previous line) x86_64-pc-linux-gnu/4.9.x/32"
2848 // MANPATH="/usr/share/gcc-data/x86_64-pc-linux-gnu/4.9.x/man"
2849 // INFOPATH="/usr/share/gcc-data/x86_64-pc-linux-gnu/4.9.x/info"
2850 // STDCXX_INCDIR="/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.x/include/g++-v4"
2851 // We are looking for the paths listed in LDPATH=... .
2852 if (ConfigFile) {
2853 SmallVector<StringRef, 2> ConfigLines;
2854 ConfigFile.get()->getBuffer().split(ConfigLines, "\n");
2855 for (StringRef ConfLine : ConfigLines) {
2856 ConfLine = ConfLine.trim();
2857 if (ConfLine.consume_front("LDPATH=")) {
2858 // Drop '"' from front and back if present.
2859 ConfLine.consume_back("\"");
2860 ConfLine.consume_front("\"");
2861 // Get all paths sperated by ':'
2862 ConfLine.split(GentooScanPaths, ':', -1, /*AllowEmpty*/ false);
2863 }
2864 }
2865 }
2866 // Test the path based on the version in /etc/env.d/gcc/config-{tuple}.
2867 std::string basePath = "/usr/lib/gcc/" + ActiveVersion.first.str() + "/"
2868 + ActiveVersion.second.str();
2869 GentooScanPaths.push_back(StringRef(basePath));
2870
2871 // Scan all paths for GCC libraries.
2872 for (const auto &GentooScanPath : GentooScanPaths) {
2873 std::string GentooPath = concat(D.SysRoot, GentooScanPath);
2874 if (D.getVFS().exists(GentooPath + "/crtbegin.o")) {
2875 if (!ScanGCCForMultilibs(TargetTriple, Args, GentooPath,
2876 NeedsBiarchSuffix))
2877 continue;
2878
2879 Version = GCCVersion::Parse(ActiveVersion.second);
2880 GCCInstallPath = GentooPath;
2881 GCCParentLibPath = GentooPath + std::string("/../../..");
2882 GCCTriple.setTriple(ActiveVersion.first);
2883 IsValid = true;
2884 return true;
2885 }
2886 }
2887 }
2888 }
2889
2890 return false;
2891}
2892
2893Generic_GCC::Generic_GCC(const Driver &D, const llvm::Triple &Triple,
2894 const ArgList &Args)
2895 : ToolChain(D, Triple, Args), GCCInstallation(D),
2896 CudaInstallation(D, Triple, Args), RocmInstallation(D, Triple, Args) {
2897 getProgramPaths().push_back(getDriver().getInstalledDir());
2898 if (getDriver().getInstalledDir() != getDriver().Dir)
2899 getProgramPaths().push_back(getDriver().Dir);
2900}
2901
2902Generic_GCC::~Generic_GCC() {}
2903
2904Tool *Generic_GCC::getTool(Action::ActionClass AC) const {
2905 switch (AC) {
2906 case Action::PreprocessJobClass:
2907 if (!Preprocess)
2908 Preprocess.reset(new clang::driver::tools::gcc::Preprocessor(*this));
2909 return Preprocess.get();
2910 case Action::CompileJobClass:
2911 if (!Compile)
2912 Compile.reset(new tools::gcc::Compiler(*this));
2913 return Compile.get();
2914 default:
2915 return ToolChain::getTool(AC);
2916 }
2917}
2918
2919Tool *Generic_GCC::buildAssembler() const {
2920 return new tools::gnutools::Assembler(*this);
2921}
2922
2923Tool *Generic_GCC::buildLinker() const { return new tools::gcc::Linker(*this); }
2924
2925void Generic_GCC::printVerboseInfo(raw_ostream &OS) const {
2926 // Print the information about how we detected the GCC installation.
2927 GCCInstallation.print(OS);
2928 CudaInstallation->print(OS);
2929 RocmInstallation->print(OS);
2930}
2931
2932ToolChain::UnwindTableLevel
2933Generic_GCC::getDefaultUnwindTableLevel(const ArgList &Args) const {
2934 switch (getArch()) {
2935 case llvm::Triple::aarch64:
2936 case llvm::Triple::aarch64_be:
2937 case llvm::Triple::ppc:
2938 case llvm::Triple::ppcle:
2939 case llvm::Triple::ppc64:
2940 case llvm::Triple::ppc64le:
2941 case llvm::Triple::riscv32:
2942 case llvm::Triple::riscv64:
2943 case llvm::Triple::x86:
2944 case llvm::Triple::x86_64:
2945 return UnwindTableLevel::Asynchronous;
2946 default:
2947 return UnwindTableLevel::None;
2948 }
2949}
2950
2951bool Generic_GCC::isPICDefault() const {
2952 switch (getArch()) {
2953 case llvm::Triple::x86_64:
2954 return getTriple().isOSWindows();
2955 case llvm::Triple::mips64:
2956 case llvm::Triple::mips64el:
2957 return true;
2958 default:
2959 return false;
2960 }
2961}
2962
2963bool Generic_GCC::isPIEDefault(const llvm::opt::ArgList &Args) const {
2964 return false;
2965}
2966
2967bool Generic_GCC::isPICDefaultForced() const {
2968 return getArch() == llvm::Triple::x86_64 && getTriple().isOSWindows();
2969}
2970
2971bool Generic_GCC::IsIntegratedAssemblerDefault() const {
2972 switch (getTriple().getArch()) {
2973 case llvm::Triple::nvptx:
2974 case llvm::Triple::nvptx64:
2975 case llvm::Triple::xcore:
2976 return false;
2977 default:
2978 return true;
2979 }
2980}
2981
2982void Generic_GCC::PushPPaths(ToolChain::path_list &PPaths) {
2983 // Cross-compiling binutils and GCC installations (vanilla and openSUSE at
2984 // least) put various tools in a triple-prefixed directory off of the parent
2985 // of the GCC installation. We use the GCC triple here to ensure that we end
2986 // up with tools that support the same amount of cross compiling as the
2987 // detected GCC installation. For example, if we find a GCC installation
2988 // targeting x86_64, but it is a bi-arch GCC installation, it can also be
2989 // used to target i386.
2990 if (GCCInstallation.isValid()) {
2991 PPaths.push_back(Twine(GCCInstallation.getParentLibPath() + "/../" +
2992 GCCInstallation.getTriple().str() + "/bin")
2993 .str());
2994 }
2995}
2996
2997void Generic_GCC::AddMultilibPaths(const Driver &D,
2998 const std::string &SysRoot,
2999 const std::string &OSLibDir,
3000 const std::string &MultiarchTriple,
3001 path_list &Paths) {
3002 // Add the multilib suffixed paths where they are available.
3003 if (GCCInstallation.isValid()) {
3004 assert(!SelectedMultilibs.empty());
3005 const llvm::Triple &GCCTriple = GCCInstallation.getTriple();
3006 const std::string &LibPath =
3007 std::string(GCCInstallation.getParentLibPath());
3008
3009 // Sourcery CodeBench MIPS toolchain holds some libraries under
3010 // a biarch-like suffix of the GCC installation.
3011 if (const auto &PathsCallback = Multilibs.filePathsCallback())
3012 for (const auto &Path : PathsCallback(SelectedMultilibs.back()))
3013 addPathIfExists(D, GCCInstallation.getInstallPath() + Path, Paths);
3014
3015 // Add lib/gcc/$triple/$version, with an optional /multilib suffix.
3016 addPathIfExists(D,
3017 GCCInstallation.getInstallPath() +
3018 SelectedMultilibs.back().gccSuffix(),
3019 Paths);
3020
3021 // Add lib/gcc/$triple/$libdir
3022 // For GCC built with --enable-version-specific-runtime-libs.
3023 addPathIfExists(D, GCCInstallation.getInstallPath() + "/../" + OSLibDir,
3024 Paths);
3025
3026 // GCC cross compiling toolchains will install target libraries which ship
3027 // as part of the toolchain under <prefix>/<triple>/<libdir> rather than as
3028 // any part of the GCC installation in
3029 // <prefix>/<libdir>/gcc/<triple>/<version>. This decision is somewhat
3030 // debatable, but is the reality today. We need to search this tree even
3031 // when we have a sysroot somewhere else. It is the responsibility of
3032 // whomever is doing the cross build targeting a sysroot using a GCC
3033 // installation that is *not* within the system root to ensure two things:
3034 //
3035 // 1) Any DSOs that are linked in from this tree or from the install path
3036 // above must be present on the system root and found via an
3037 // appropriate rpath.
3038 // 2) There must not be libraries installed into
3039 // <prefix>/<triple>/<libdir> unless they should be preferred over
3040 // those within the system root.
3041 //
3042 // Note that this matches the GCC behavior. See the below comment for where
3043 // Clang diverges from GCC's behavior.
3044 addPathIfExists(D,
3045 LibPath + "/../" + GCCTriple.str() + "/lib/../" + OSLibDir +
3046 SelectedMultilibs.back().osSuffix(),
3047 Paths);
3048
3049 // If the GCC installation we found is inside of the sysroot, we want to
3050 // prefer libraries installed in the parent prefix of the GCC installation.
3051 // It is important to *not* use these paths when the GCC installation is
3052 // outside of the system root as that can pick up unintended libraries.
3053 // This usually happens when there is an external cross compiler on the
3054 // host system, and a more minimal sysroot available that is the target of
3055 // the cross. Note that GCC does include some of these directories in some
3056 // configurations but this seems somewhere between questionable and simply
3057 // a bug.
3058 if (StringRef(LibPath).startswith(SysRoot))
3059 addPathIfExists(D, LibPath + "/../" + OSLibDir, Paths);
3060 }
3061}
3062
3063void Generic_GCC::AddMultiarchPaths(const Driver &D,
3064 const std::string &SysRoot,
3065 const std::string &OSLibDir,
3066 path_list &Paths) {
3067 if (GCCInstallation.isValid()) {
3068 const std::string &LibPath =
3069 std::string(GCCInstallation.getParentLibPath());
3070 const llvm::Triple &GCCTriple = GCCInstallation.getTriple();
3071 const Multilib &Multilib = GCCInstallation.getMultilib();
3072 addPathIfExists(
3073 D, LibPath + "/../" + GCCTriple.str() + "/lib" + Multilib.osSuffix(),
3074 Paths);
3075 }
3076}
3077
3078void Generic_GCC::AddMultilibIncludeArgs(const ArgList &DriverArgs,
3079 ArgStringList &CC1Args) const {
3080 // Add include directories specific to the selected multilib set and multilib.
3081 if (!GCCInstallation.isValid())
3082 return;
3083 // gcc TOOL_INCLUDE_DIR.
3084 const llvm::Triple &GCCTriple = GCCInstallation.getTriple();
3085 std::string LibPath(GCCInstallation.getParentLibPath());
3086 addSystemInclude(DriverArgs, CC1Args,
3087 Twine(LibPath) + "/../" + GCCTriple.str() + "/include");
3088
3089 const auto &Callback = Multilibs.includeDirsCallback();
3090 if (Callback) {
3091 for (const auto &Path : Callback(GCCInstallation.getMultilib()))
3092 addExternCSystemIncludeIfExists(DriverArgs, CC1Args,
3093 GCCInstallation.getInstallPath() + Path);
3094 }
3095}
3096
3097void Generic_GCC::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
3098 ArgStringList &CC1Args) const {
3099 if (DriverArgs.hasArg(options::OPT_nostdinc, options::OPT_nostdincxx,
3100 options::OPT_nostdlibinc))
3101 return;
3102
3103 switch (GetCXXStdlibType(DriverArgs)) {
3104 case ToolChain::CST_Libcxx:
3105 addLibCxxIncludePaths(DriverArgs, CC1Args);
3106 break;
3107
3108 case ToolChain::CST_Libstdcxx:
3109 addLibStdCxxIncludePaths(DriverArgs, CC1Args);
3110 break;
3111 }
3112}
3113
3114void
3115Generic_GCC::addLibCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
3116 llvm::opt::ArgStringList &CC1Args) const {
3117 const Driver &D = getDriver();
3118 std::string SysRoot = computeSysRoot();
3119 if (SysRoot.empty())
3120 SysRoot = llvm::sys::path::get_separator();
3121
3122 auto AddIncludePath = [&](StringRef Path, bool TargetDirRequired = false) {
3123 std::string Version = detectLibcxxVersion(Path);
3124 if (Version.empty())
3125 return false;
3126
3127 // First add the per-target include path if it exists.
3128 bool TargetDirExists = false;
3129 std::optional<std::string> TargetIncludeDir = getTargetSubDirPath(Path);
3130 if (TargetIncludeDir) {
3131 SmallString<128> TargetDir(*TargetIncludeDir);
3132 llvm::sys::path::append(TargetDir, "c++", Version);
3133 if (D.getVFS().exists(TargetDir)) {
3134 addSystemInclude(DriverArgs, CC1Args, TargetDir);
3135 TargetDirExists = true;
3136 }
3137 }
3138 if (TargetDirRequired && !TargetDirExists)
3139 return false;
3140
3141 // Second add the generic one.
3142 SmallString<128> GenericDir(Path);
3143 llvm::sys::path::append(GenericDir, "c++", Version);
3144 addSystemInclude(DriverArgs, CC1Args, GenericDir);
3145 return true;
3146 };
3147
3148 // Android only uses the libc++ headers installed alongside the toolchain if
3149 // they contain an Android-specific target include path, otherwise they're
3150 // incompatible with the NDK libraries.
3151 SmallString<128> DriverIncludeDir(getDriver().Dir);
3152 llvm::sys::path::append(DriverIncludeDir, "..", "include");
3153 if (AddIncludePath(DriverIncludeDir,
3154 /*TargetDirRequired=*/getTriple().isAndroid()))
3155 return;
3156 // If this is a development, non-installed, clang, libcxx will
3157 // not be found at ../include/c++ but it likely to be found at
3158 // one of the following two locations:
3159 SmallString<128> UsrLocalIncludeDir(SysRoot);
3160 llvm::sys::path::append(UsrLocalIncludeDir, "usr", "local", "include");
3161 if (AddIncludePath(UsrLocalIncludeDir))
3162 return;
3163 SmallString<128> UsrIncludeDir(SysRoot);
3164 llvm::sys::path::append(UsrIncludeDir, "usr", "include");
3165 if (AddIncludePath(UsrIncludeDir))
3166 return;
3167}
3168
3169bool Generic_GCC::addLibStdCXXIncludePaths(Twine IncludeDir, StringRef Triple,
3170 Twine IncludeSuffix,
3171 const llvm::opt::ArgList &DriverArgs,
3172 llvm::opt::ArgStringList &CC1Args,
3173 bool DetectDebian) const {
3174 if (!getVFS().exists(IncludeDir))
3175 return false;
3176
3177 // Debian native gcc uses g++-multiarch-incdir.diff which uses
3178 // include/x86_64-linux-gnu/c++/10$IncludeSuffix instead of
3179 // include/c++/10/x86_64-linux-gnu$IncludeSuffix.
3180 std::string Dir = IncludeDir.str();
3181 StringRef Include =
3182 llvm::sys::path::parent_path(llvm::sys::path::parent_path(Dir));
3183 std::string Path =
3184 (Include + "/" + Triple + Dir.substr(Include.size()) + IncludeSuffix)
3185 .str();
3186 if (DetectDebian && !getVFS().exists(Path))
3187 return false;
3188
3189 // GPLUSPLUS_INCLUDE_DIR
3190 addSystemInclude(DriverArgs, CC1Args, IncludeDir);
3191 // GPLUSPLUS_TOOL_INCLUDE_DIR. If Triple is not empty, add a target-dependent
3192 // include directory.
3193 if (DetectDebian)
3194 addSystemInclude(DriverArgs, CC1Args, Path);
3195 else if (!Triple.empty())
3196 addSystemInclude(DriverArgs, CC1Args,
3197 IncludeDir + "/" + Triple + IncludeSuffix);
3198 // GPLUSPLUS_BACKWARD_INCLUDE_DIR
3199 addSystemInclude(DriverArgs, CC1Args, IncludeDir + "/backward");
3200 return true;
3201}
3202
3203bool Generic_GCC::addGCCLibStdCxxIncludePaths(
3204 const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args,
3205 StringRef DebianMultiarch) const {
3206 assert(GCCInstallation.isValid());
3207
3208 // By default, look for the C++ headers in an include directory adjacent to
3209 // the lib directory of the GCC installation. Note that this is expect to be
3210 // equivalent to '/usr/include/c++/X.Y' in almost all cases.
3211 StringRef LibDir = GCCInstallation.getParentLibPath();
3212 StringRef InstallDir = GCCInstallation.getInstallPath();
3213 StringRef TripleStr = GCCInstallation.getTriple().str();
3214 const Multilib &Multilib = GCCInstallation.getMultilib();
3215 const GCCVersion &Version = GCCInstallation.getVersion();
3216
3217 // Try /../$triple/include/c++/$version (gcc --print-multiarch is not empty).
3218 if (addLibStdCXXIncludePaths(
3219 LibDir.str() + "/../" + TripleStr + "/include/c++/" + Version.Text,
3220 TripleStr, Multilib.includeSuffix(), DriverArgs, CC1Args))
3221 return true;
3222
3223 // Try /gcc/$triple/$version/include/c++/ (gcc --print-multiarch is not
3224 // empty). Like above but for GCC built with
3225 // --enable-version-specific-runtime-libs.
3226 if (addLibStdCXXIncludePaths(LibDir.str() + "/gcc/" + TripleStr + "/" +
3227 Version.Text + "/include/c++/",
3228 TripleStr, Multilib.includeSuffix(), DriverArgs,
3229 CC1Args))
3230 return true;
3231
3232 // Detect Debian g++-multiarch-incdir.diff.
3233 if (addLibStdCXXIncludePaths(LibDir.str() + "/../include/c++/" + Version.Text,
3234 DebianMultiarch, Multilib.includeSuffix(),
3235 DriverArgs, CC1Args, /*Debian=*/true))
3236 return true;
3237
3238 // Try /../include/c++/$version (gcc --print-multiarch is empty).
3239 if (addLibStdCXXIncludePaths(LibDir.str() + "/../include/c++/" + Version.Text,
3240 TripleStr, Multilib.includeSuffix(), DriverArgs,
3241 CC1Args))
3242 return true;
3243
3244 // Otherwise, fall back on a bunch of options which don't use multiarch
3245 // layouts for simplicity.
3246 const std::string LibStdCXXIncludePathCandidates[] = {
3247 // Gentoo is weird and places its headers inside the GCC install,
3248 // so if the first attempt to find the headers fails, try these patterns.
3249 InstallDir.str() + "/include/g++-v" + Version.Text,
3250 InstallDir.str() + "/include/g++-v" + Version.MajorStr + "." +
3251 Version.MinorStr,
3252 InstallDir.str() + "/include/g++-v" + Version.MajorStr,
3253 };
3254
3255 for (const auto &IncludePath : LibStdCXXIncludePathCandidates) {
3256 if (addLibStdCXXIncludePaths(IncludePath, TripleStr,
3257 Multilib.includeSuffix(), DriverArgs, CC1Args))
3258 return true;
3259 }
3260 return false;
3261}
3262
3263void
3264Generic_GCC::addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
3265 llvm::opt::ArgStringList &CC1Args) const {
3266 if (GCCInstallation.isValid()) {
3267 addGCCLibStdCxxIncludePaths(DriverArgs, CC1Args,
3268 GCCInstallation.getTriple().str());
3269 }
3270}
3271
3272llvm::opt::DerivedArgList *
3273Generic_GCC::TranslateArgs(const llvm::opt::DerivedArgList &Args, StringRef,
3274 Action::OffloadKind DeviceOffloadKind) const {
3275
3276 // If this tool chain is used for an OpenMP offloading device we have to make
3277 // sure we always generate a shared library regardless of the commands the
3278 // user passed to the host. This is required because the runtime library
3279 // is required to load the device image dynamically at run time.
3280 if (DeviceOffloadKind == Action::OFK_OpenMP) {
3281 DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs());
3282 const OptTable &Opts = getDriver().getOpts();
3283
3284 // Request the shared library. Given that these options are decided
3285 // implicitly, they do not refer to any base argument.
3286 DAL->AddFlagArg(/*BaseArg=*/nullptr, Opts.getOption(options::OPT_shared));
3287 DAL->AddFlagArg(/*BaseArg=*/nullptr, Opts.getOption(options::OPT_fPIC));
3288
3289 // Filter all the arguments we don't care passing to the offloading
3290 // toolchain as they can mess up with the creation of a shared library.
3291 for (auto *A : Args) {
3292 switch ((options::ID)A->getOption().getID()) {
3293 default:
3294 DAL->append(A);
3295 break;
3296 case options::OPT_shared:
3297 case options::OPT_dynamic:
3298 case options::OPT_static:
3299 case options::OPT_fPIC:
3300 case options::OPT_fno_PIC:
3301 case options::OPT_fpic:
3302 case options::OPT_fno_pic:
3303 case options::OPT_fPIE:
3304 case options::OPT_fno_PIE:
3305 case options::OPT_fpie:
3306 case options::OPT_fno_pie:
3307 break;
3308 }
3309 }
3310 return DAL;
3311 }
3312 return nullptr;
3313}
3314
3315void Generic_ELF::anchor() {}
3316
3317void Generic_ELF::addClangTargetOptions(const ArgList &DriverArgs,
3318 ArgStringList &CC1Args,
3319 Action::OffloadKind) const {
3320 if (!DriverArgs.hasFlag(options::OPT_fuse_init_array,
3321 options::OPT_fno_use_init_array, true))
3322 CC1Args.push_back("-fno-use-init-array");
3323}
P
StringRef P
Definition: ASTMatchersInternal.cpp:564
findRISCVMultilibs
static bool findRISCVMultilibs(const Driver &D, const llvm::Triple &TargetTriple, const ArgList &Args, DetectedMultilibs &Result)
Definition: BareMetal.cpp:36
Suffixes
static constexpr CPUSuffix Suffixes[]
Definition: Hexagon.cpp:231
IsStatic
bool IsStatic
Definition: Format.cpp:2988
findCSKYMultilibs
static void findCSKYMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, DetectedMultilibs &Result)
Definition: Gnu.cpp:1653
findAndroidArmMultilibs
static void findAndroidArmMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, DetectedMultilibs &Result)
Definition: Gnu.cpp:1582
isArmOrThumbArch
static bool isArmOrThumbArch(llvm::Triple::ArchType Arch)
Definition: Gnu.cpp:1011
normalizeCPUNamesForAssembler
static void normalizeCPUNamesForAssembler(const ArgList &Args, ArgStringList &CmdArgs)
Definition: Gnu.cpp:55
findBiarchMultilibs
static bool findBiarchMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, bool NeedsBiarchSuffix, DetectedMultilibs &Result)
Definition: Gnu.cpp:1815
isMips16
static bool isMips16(const ArgList &Args)
Definition: Gnu.cpp:1019
getGCCToolchainDir
static llvm::StringRef getGCCToolchainDir(const ArgList &Args, llvm::StringRef SysRoot)
Definition: Gnu.cpp:2066
findMSP430Multilibs
static bool findMSP430Multilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, DetectedMultilibs &Result)
Definition: Gnu.cpp:1625
getStatic
static bool getStatic(const ArgList &Args)
Definition: Gnu.cpp:307
findMipsCsMultilibs
static bool findMipsCsMultilibs(const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition: Gnu.cpp:1033
findMipsMtiMultilibs
static bool findMipsMtiMultilibs(const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition: Gnu.cpp:1217
isMipsEL
static bool isMipsEL(llvm::Triple::ArchType Arch)
Definition: Gnu.cpp:1015
getLDMOption
static const char * getLDMOption(const llvm::Triple &T, const ArgList &Args)
Definition: Gnu.cpp:223
findMipsMuslMultilibs
static bool findMipsMuslMultilibs(const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition: Gnu.cpp:1183
findRISCVBareMetalMultilibs
static void findRISCVBareMetalMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, DetectedMultilibs &Result)
Definition: Gnu.cpp:1718
findMipsAndroidMultilibs
static bool findMipsAndroidMultilibs(llvm::vfs::FileSystem &VFS, StringRef Path, const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition: Gnu.cpp:1137
isMSP430
static bool isMSP430(llvm::Triple::ArchType Arch)
Definition: Gnu.cpp:1029
isSoftFloatABI
static bool isSoftFloatABI(const ArgList &Args)
Definition: Gnu.cpp:1000
findMipsImgMultilibs
static bool findMipsImgMultilibs(const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition: Gnu.cpp:1403
getStaticPIE
static bool getStaticPIE(const ArgList &Args, const ToolChain &TC)
Definition: Gnu.cpp:295
forwardToGCC
static bool forwardToGCC(const Option &O)
Definition: Gnu.cpp:45
isMicroMips
static bool isMicroMips(const ArgList &Args)
Definition: Gnu.cpp:1024
clang::driver::Action::getType
types::ID getType() const
Definition: Action.h:148
clang::driver::Action::isHostOffloading
bool isHostOffloading(unsigned int OKind) const
Check if this action have any offload kinds.
Definition: Action.h:218
clang::driver::Compilation
Compilation - A set of tasks to perform for a single driver invocation.
Definition: Compilation.h:45
clang::driver::Driver
Driver - Encapsulate logic for constructing compilation processes from a set of gcc-driver-like comma...
Definition: Driver.h:77
clang::driver::Driver::SysRoot
std::string SysRoot
sysroot, if present
Definition: Driver.h:183
clang::driver::Driver::DyldPrefix
std::string DyldPrefix
Dynamic loader prefix, if present.
Definition: Driver.h:186
clang::driver::Driver::Diag
DiagnosticBuilder Diag(unsigned DiagID) const
Definition: Driver.h:144
clang::driver::Driver::getOpts
const llvm::opt::OptTable & getOpts() const
Definition: Driver.h:388
clang::driver::Driver::getLTOMode
LTOKind getLTOMode(bool IsOffload=false) const
Get the specific kind of LTO being performed.
Definition: Driver.h:704
clang::driver::Driver::InstalledDir
std::string InstalledDir
The path to the installed clang directory, if any.
Definition: Driver.h:164
clang::driver::Driver::getVFS
llvm::vfs::FileSystem & getVFS() const
Definition: Driver.h:392
clang::driver::Driver::isUsingLTO
bool isUsingLTO(bool IsOffload=false) const
Returns true if we are performing any kind of LTO.
Definition: Driver.h:699
clang::driver::Driver::IsFlangMode
bool IsFlangMode() const
Whether the driver should invoke flang for fortran inputs.
Definition: Driver.h:229
clang::driver::Driver::getCCCGenericGCCName
const std::string & getCCCGenericGCCName() const
Name to use when invoking gcc/g++.
Definition: Driver.h:382
clang::driver::Driver::CCCIsCXX
bool CCCIsCXX() const
Whether the driver should follow g++ like behavior.
Definition: Driver.h:216
clang::driver::InputInfo
InputInfo - Wrapper for information about an input source.
Definition: InputInfo.h:22
clang::driver::InputInfo::getFilename
const char * getFilename() const
Definition: InputInfo.h:83
clang::driver::InputInfo::isNothing
bool isNothing() const
Definition: InputInfo.h:74
clang::driver::InputInfo::isFilename
bool isFilename() const
Definition: InputInfo.h:75
clang::driver::MultilibBuilder
This corresponds to a single GCC multilib, or a segment of one controlled by a command line flag.
Definition: MultilibBuilder.h:22
clang::driver::MultilibBuilder::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:89
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:98
clang::driver::MultilibSetBuilder::FilterOut
MultilibSetBuilder & FilterOut(const char *Regex)
Filter out those Multilibs whose gccSuffix matches the given expression.
Definition: MultilibBuilder.cpp:176
clang::driver::MultilibSetBuilder::Either
MultilibSetBuilder & Either(const MultilibBuilder &M1, const MultilibBuilder &M2)
Add a set of mutually incompatible Multilib segments.
Definition: MultilibBuilder.cpp:108
clang::driver::MultilibSet
See also MultilibSetBuilder for combining multilibs into a set.
Definition: Multilib.h:92
clang::driver::MultilibSet::select
bool select(const Multilib::flags_list &Flags, llvm::SmallVector< Multilib > &) const
Select compatible variants,.
Definition: Multilib.cpp:97
clang::driver::MultilibSet::setFilePathsCallback
MultilibSet & setFilePathsCallback(IncludeDirsFunc F)
Definition: Multilib.h:152
clang::driver::MultilibSet::size
unsigned size() const
Definition: Multilib.h:135
clang::driver::MultilibSet::FilterOut
MultilibSet & FilterOut(FilterCallback F)
Filter out some subset of the Multilibs using a user defined callback.
Definition: Multilib.cpp:90
clang::driver::MultilibSet::filePathsCallback
const IncludeDirsFunc & filePathsCallback() const
Definition: Multilib.h:157
clang::driver::MultilibSet::includeDirsCallback
const IncludeDirsFunc & includeDirsCallback() const
Definition: Multilib.h:150
clang::driver::MultilibSet::setIncludeDirsCallback
MultilibSet & setIncludeDirsCallback(IncludeDirsFunc F)
Definition: Multilib.h:145
clang::driver::Multilib
This corresponds to a single GCC Multilib, or a segment of one controlled by a command line flag.
Definition: Multilib.h:32
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:61
clang::driver::Multilib::osSuffix
const std::string & osSuffix() const
Get the detected os path suffix for the multi-arch target variant.
Definition: Multilib.h:65
clang::driver::Multilib::flags_list
std::vector< std::string > flags_list
Definition: Multilib.h:34
clang::driver::Multilib::includeSuffix
const std::string & includeSuffix() const
Get the include directory suffix.
Definition: Multilib.h:69
clang::driver::Multilib::isDefault
bool isDefault() const
Check whether the default is selected.
Definition: Multilib.h:83
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:1133
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:1019
clang::driver::ToolChain::GetRuntimeLibType
virtual RuntimeLibType GetRuntimeLibType(const llvm::opt::ArgList &Args) const
Definition: ToolChain.cpp:1045
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:1235
clang::driver::ToolChain::GetFilePath
std::string GetFilePath(const char *Name) const
Definition: ToolChain.cpp:824
clang::driver::ToolChain::getArch
llvm::Triple::ArchType getArch() const
Definition: ToolChain.h:261
clang::driver::ToolChain::getDriver
const Driver & getDriver() const
Definition: ToolChain.h:245
clang::driver::ToolChain::detectLibcxxVersion
virtual std::string detectLibcxxVersion(StringRef IncludePath) const
Definition: ToolChain.cpp:1180
clang::driver::ToolChain::getVFS
llvm::vfs::FileSystem & getVFS() const
Definition: ToolChain.cpp:132
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:1292
clang::driver::ToolChain::getProgramPaths
path_list & getProgramPaths()
Definition: ToolChain.h:290
clang::driver::ToolChain::addExternCSystemIncludeIfExists
static void addExternCSystemIncludeIfExists(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, const Twine &Path)
Definition: ToolChain.cpp:1155
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:1241
clang::driver::ToolChain::getTriple
const llvm::Triple & getTriple() const
Definition: ToolChain.h:247
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:725
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:832
clang::driver::ToolChain::getCompilerRT
virtual std::string getCompilerRT(const llvm::opt::ArgList &Args, StringRef Component, FileType Type=ToolChain::FT_Static) const
Definition: ToolChain.cpp:653
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:1260
clang::driver::ToolChain::getTripleString
std::string getTripleString() const
Definition: ToolChain.h:270
clang::driver::ToolChain::GetCXXStdlibType
virtual CXXStdlibType GetCXXStdlibType(const llvm::opt::ArgList &Args) const
Definition: ToolChain.cpp:1107
clang::driver::ToolChain::SelectedMultilibs
llvm::SmallVector< Multilib > SelectedMultilibs
Definition: ToolChain.h:194
clang::driver::ToolChain::getTool
virtual Tool * getTool(Action::ActionClass AC) const
Definition: ToolChain.cpp:508
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:363
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:3317
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::print
void print(raw_ostream &OS) const
Print information about the detected GCC installation.
Definition: Gnu.cpp:2211
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getMultilib
const Multilib & getMultilib() const
Get the detected Multilib.
Definition: Gnu.h:236
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getTriple
const llvm::Triple & getTriple() const
Get the GCC triple for the detected install.
Definition: Gnu.h:227
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::isValid
bool isValid() const
Check whether we detected a valid GCC install.
Definition: Gnu.h:224
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getBiarchSibling
bool getBiarchSibling(Multilib &M) const
Get the biarch sibling multilib (if it exists).
Definition: Gnu.cpp:2225
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:2090
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getParentLibPath
StringRef getParentLibPath() const
Get the detected GCC parent lib path.
Definition: Gnu.h:233
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getInstallPath
StringRef getInstallPath() const
Get the detected GCC installation path.
Definition: Gnu.h:230
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getVersion
const GCCVersion & getVersion() const
Get the detected GCC version string.
Definition: Gnu.h:246
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:3273
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:2997
clang::driver::toolchains::Generic_GCC::addGCCLibStdCxxIncludePaths
bool addGCCLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, StringRef DebianMultiarch) const
Definition: Gnu.cpp:3203
clang::driver::toolchains::Generic_GCC::CudaInstallation
LazyDetector< CudaInstallationDetector > CudaInstallation
Definition: Gnu.h:289
clang::driver::toolchains::Generic_GCC::PushPPaths
void PushPPaths(ToolChain::path_list &PPaths)
Definition: Gnu.cpp:2982
clang::driver::toolchains::Generic_GCC::getTool
Tool * getTool(Action::ActionClass AC) const override
Definition: Gnu.cpp:2904
clang::driver::toolchains::Generic_GCC::Generic_GCC
Generic_GCC(const Driver &D, const llvm::Triple &Triple, const llvm::opt::ArgList &Args)
Definition: Gnu.cpp:2893
clang::driver::toolchains::Generic_GCC::GCCInstallation
GCCInstallationDetector GCCInstallation
Definition: Gnu.h:288
clang::driver::toolchains::Generic_GCC::AddMultilibIncludeArgs
void AddMultilibIncludeArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Definition: Gnu.cpp:3078
clang::driver::toolchains::Generic_GCC::IsIntegratedAssemblerDefault
bool IsIntegratedAssemblerDefault() const override
IsIntegratedAssemblerDefault - Does this tool chain enable -integrated-as by default.
Definition: Gnu.cpp:2971
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:3097
clang::driver::toolchains::Generic_GCC::buildLinker
Tool * buildLinker() const override
Definition: Gnu.cpp:2923
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:2967
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:2963
clang::driver::toolchains::Generic_GCC::printVerboseInfo
void printVerboseInfo(raw_ostream &OS) const override
Dispatch to the specific toolchain for verbose printing.
Definition: Gnu.cpp:2925
clang::driver::toolchains::Generic_GCC::~Generic_GCC
~Generic_GCC() override
Definition: Gnu.cpp:2902
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:3063
clang::driver::toolchains::Generic_GCC::buildAssembler
Tool * buildAssembler() const override
Definition: Gnu.cpp:2919
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:2933
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:3169
clang::driver::toolchains::Generic_GCC::isPICDefault
bool isPICDefault() const override
Test whether this toolchain defaults to PIC.
Definition: Gnu.cpp:2951
clang::driver::toolchains::Generic_GCC::addLibCxxIncludePaths
virtual void addLibCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Definition: Gnu.cpp:3115
clang::driver::toolchains::Generic_GCC::RocmInstallation
LazyDetector< RocmInstallationDetector > RocmInstallation
Definition: Gnu.h:290
clang::driver::toolchains::Generic_GCC::addLibStdCxxIncludePaths
virtual void addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Definition: Gnu.cpp:3264
clang::driver::tools::gcc::Common::ConstructJob
void ConstructJob(Compilation &C, const JobAction &JA, const InputInfo &Output, const InputInfoList &Inputs, const llvm::opt::ArgList &TCArgs, const char *LinkingOutput) const override
ConstructJob - Construct jobs to perform the action JA, writing to Output and with Inputs,...
Definition: Gnu.cpp:68
clang::driver::tools::gcc::Common::RenderExtraToolArgs
virtual void RenderExtraToolArgs(const JobAction &JA, llvm::opt::ArgStringList &CmdArgs) const =0
RenderExtraToolArgs - Render any arguments necessary to force the particular tool mode.
clang::driver::tools::gcc::Compiler::RenderExtraToolArgs
void RenderExtraToolArgs(const JobAction &JA, llvm::opt::ArgStringList &CmdArgs) const override
RenderExtraToolArgs - Render any arguments necessary to force the particular tool mode.
Definition: Gnu.cpp:190
clang::driver::tools::gcc::Linker::RenderExtraToolArgs
void RenderExtraToolArgs(const JobAction &JA, llvm::opt::ArgStringList &CmdArgs) const override
RenderExtraToolArgs - Render any arguments necessary to force the particular tool mode.
Definition: Gnu.cpp:218
clang::driver::tools::gcc::Preprocessor::RenderExtraToolArgs
void RenderExtraToolArgs(const JobAction &JA, llvm::opt::ArgStringList &CmdArgs) const override
RenderExtraToolArgs - Render any arguments necessary to force the particular tool mode.
Definition: Gnu.cpp:185
clang::driver::tools::gnutools::Assembler::ConstructJob
void ConstructJob(Compilation &C, const JobAction &JA, const InputInfo &Output, const InputInfoList &Inputs, const llvm::opt::ArgList &TCArgs, const char *LinkingOutput) const override
ConstructJob - Construct jobs to perform the action JA, writing to Output and with Inputs,...
Definition: Gnu.cpp:673
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:356
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:312
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:95
clang::driver::tools::riscv::getRISCVABI
StringRef getRISCVABI(const llvm::opt::ArgList &Args, const llvm::Triple &Triple)
clang::driver::tools::riscv::getRISCVArch
StringRef getRISCVArch(const llvm::opt::ArgList &Args, const llvm::Triple &Triple)
Definition: RISCV.cpp:250
clang::driver::tools::sparc::getSparcAsmModeForCPU
const char * getSparcAsmModeForCPU(llvm::StringRef Name, const llvm::Triple &Triple)
clang::driver::tools::systemz::getSystemZTargetCPU
std::string getSystemZTargetCPU(const llvm::opt::ArgList &Args)
clang::driver::tools::SplitDebugName
const char * SplitDebugName(const JobAction &JA, const llvm::opt::ArgList &Args, const InputInfo &Input, const InputInfo &Output)
clang::driver::tools::getCPUName
std::string getCPUName(const Driver &D, const llvm::opt::ArgList &Args, const llvm::Triple &T, bool FromAs=false)
clang::driver::tools::addHIPRuntimeLibArgs
void addHIPRuntimeLibArgs(const ToolChain &TC, Compilation &C, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs)
Definition: CommonArgs.cpp:2665
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:2156
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:289
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:445
clang::driver::tools::addOpenMPRuntime
bool addOpenMPRuntime(llvm::opt::ArgStringList &CmdArgs, const ToolChain &TC, const llvm::opt::ArgList &Args, bool ForceStaticHostRuntime=false, bool IsOffloadingHost=false, bool GompNeedsRT=false)
Returns true, if an OpenMP runtime has been added.
clang::driver::tools::addLTOOptions
void addLTOOptions(const ToolChain &ToolChain, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs, const InputInfo &Output, const InputInfo &Input, bool IsThinLTO)
clang::driver::tools::ParsePICArgs
std::tuple< llvm::Reloc::Model, unsigned, bool > ParsePICArgs(const ToolChain &ToolChain, const llvm::opt::ArgList &Args)
clang::driver::tools::claimNoWarnArgs
void claimNoWarnArgs(const llvm::opt::ArgList &Args)
clang::driver::tools::AddLinkerInputs
void AddLinkerInputs(const ToolChain &TC, const InputInfoList &Inputs, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs, const JobAction &JA)
clang::driver::tools::getDwarfVersion
unsigned getDwarfVersion(const ToolChain &TC, const llvm::opt::ArgList &Args)
Definition: CommonArgs.cpp:1965
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:252
clang::driver::types::getTypeName
const char * getTypeName(ID Id)
getTypeName - Return the name of the type for Id.
Definition: Types.cpp:52
clang::driver::types::canTypeBeUserSpecified
bool canTypeBeUserSpecified(ID Id)
canTypeBeUserSpecified - Can this type be specified on the command line (by the type name); this is u...
Definition: Types.cpp:105
clang::driver::findMIPSMultilibs
bool findMIPSMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const llvm::opt::ArgList &Args, DetectedMultilibs &Result)
clang::ObjCSubstitutionContext::Result
@ Result
The result type of a method or function.
clang::driver::DetectedMultilibs::Multilibs
MultilibSet Multilibs
The set of multilibs that the detected installation supports.
Definition: Gnu.h:24
clang::driver::DetectedMultilibs::BiarchSibling
std::optional< Multilib > BiarchSibling
On Biarch systems, this corresponds to the default multilib when targeting the non-default multilib.
Definition: Gnu.h:31
clang::driver::DetectedMultilibs::SelectedMultilibs
llvm::SmallVector< Multilib > SelectedMultilibs
The multilibs appropriate for the given flags.
Definition: Gnu.h:27
clang::driver::ResponseFileSupport::AtFileCurCP
static constexpr ResponseFileSupport AtFileCurCP()
Definition: Job.h:92
clang::driver::toolchains::Generic_GCC::GCCVersion
Struct to store and manipulate GCC versions.
Definition: Gnu.h:162
clang::driver::toolchains::Generic_GCC::GCCVersion::MajorStr
std::string MajorStr
The text of the parsed major, and major+minor versions.
Definition: Gnu.h:170
clang::driver::toolchains::Generic_GCC::GCCVersion::isOlderThan
bool isOlderThan(int RHSMajor, int RHSMinor, int RHSPatch, StringRef RHSPatchSuffix=StringRef()) const
Generic_GCC - A tool chain using the 'gcc' command to perform all subcommands; this relies on gcc tra...
Definition: Gnu.cpp:1948
clang::driver::toolchains::Generic_GCC::GCCVersion::MinorStr
std::string MinorStr
Definition: Gnu.h:170
clang::driver::toolchains::Generic_GCC::GCCVersion::Minor
int Minor
Definition: Gnu.h:167
clang::driver::toolchains::Generic_GCC::GCCVersion::Patch
int Patch
Definition: Gnu.h:167
clang::driver::toolchains::Generic_GCC::GCCVersion::PatchSuffix
std::string PatchSuffix
Any textual suffix on the patch number.
Definition: Gnu.h:173
clang::driver::toolchains::Generic_GCC::GCCVersion::Major
int Major
The parsed major, minor, and patch numbers.
Definition: Gnu.h:167
clang::driver::toolchains::Generic_GCC::GCCVersion::Text
std::string Text
The unparsed text of the version.
Definition: Gnu.h:164
clang::driver::toolchains::Generic_GCC::GCCVersion::Parse
static GCCVersion Parse(StringRef VersionText)
Parse a GCCVersion object out of a string of text.
Definition: Gnu.cpp:1992
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