clang 24.0.0git
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 "clang/Config/config.h" // for GCC_INSTALL_PREFIX
19#include "clang/Driver/CommonArgs.h"
20#include "clang/Driver/Compilation.h"
21#include "clang/Driver/Driver.h"
22#include "clang/Driver/MultilibBuilder.h"
23#include "clang/Driver/Tool.h"
24#include "clang/Driver/ToolChain.h"
25#include "clang/Options/Options.h"
26#include "llvm/ADT/StringSet.h"
27#include "llvm/ADT/Twine.h"
28#include "llvm/Option/ArgList.h"
29#include "llvm/Support/CodeGen.h"
30#include "llvm/Support/Path.h"
31#include "llvm/Support/VirtualFileSystem.h"
32#include "llvm/TargetParser/RISCVISAInfo.h"
33#include "llvm/TargetParser/TargetParser.h"
34#include <system_error>
35
36using namespace clang::driver;
37using namespace clang::driver::toolchains;
38using namespace clang;
39using namespace llvm::opt;
40
41using tools::addMultilibFlag;
42using tools::addPathIfExists;
43
44static bool forwardToGCC(const Option &O) {
45 // LinkerInput options have been forwarded. Don't duplicate.
46 if (O.hasFlag(options::LinkerInput))
47 return false;
48 return O.matches(options::OPT_Link_Group) || O.hasFlag(options::LinkOption);
49}
50
51// Switch CPU names not recognized by GNU assembler to a close CPU that it does
52// recognize, instead of a lower march from being picked in the absence of a cpu
53// flag.
54static void normalizeCPUNamesForAssembler(const ArgList &Args,
55 ArgStringList &CmdArgs) {
56 if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) {
57 StringRef CPUArg(A->getValue());
58 if (CPUArg.equals_insensitive("krait"))
59 CmdArgs.push_back("-mcpu=cortex-a15");
60 else if (CPUArg.equals_insensitive("kryo"))
61 CmdArgs.push_back("-mcpu=cortex-a57");
62 else
63 Args.AddLastArg(CmdArgs, options::OPT_mcpu_EQ);
64 }
65}
66
67void tools::gcc::Common::ConstructJob(Compilation &C, const JobAction &JA,
68 const InputInfo &Output,
69 const InputInfoList &Inputs,
70 const ArgList &Args,
71 const char *LinkingOutput) const {
72 const Driver &D = getToolChain().getDriver();
73 ArgStringList CmdArgs;
74
75 for (const auto &A : Args) {
76 if (forwardToGCC(A->getOption())) {
77 // It is unfortunate that we have to claim here, as this means
78 // we will basically never report anything interesting for
79 // platforms using a generic gcc, even if we are just using gcc
80 // to get to the assembler.
81 A->claim();
82
83 A->render(Args, CmdArgs);
84 }
85 }
86
87 RenderExtraToolArgs(JA, CmdArgs);
88
89 // If using a driver, force the arch.
90 if (getToolChain().getTriple().isOSDarwin()) {
91 CmdArgs.push_back("-arch");
92 CmdArgs.push_back(
93 Args.MakeArgString(getToolChain().getDefaultUniversalArchName()));
94 }
95
96 // Try to force gcc to match the tool chain we want, if we recognize
97 // the arch.
98 //
99 // FIXME: The triple class should directly provide the information we want
100 // here.
101 switch (getToolChain().getArch()) {
102 default:
103 break;
104 case llvm::Triple::x86:
105 case llvm::Triple::ppc:
106 case llvm::Triple::ppcle:
107 CmdArgs.push_back("-m32");
108 break;
109 case llvm::Triple::x86_64:
110 case llvm::Triple::ppc64:
111 case llvm::Triple::ppc64le:
112 CmdArgs.push_back("-m64");
113 break;
114 case llvm::Triple::sparcel:
115 CmdArgs.push_back("-EL");
116 break;
117 }
118
119 assert((Output.isFilename() || Output.isNothing()) && "Invalid output.");
120 if (Output.isFilename()) {
121 CmdArgs.push_back("-o");
122 CmdArgs.push_back(Output.getFilename());
123 } else {
124 CmdArgs.push_back("-fsyntax-only");
125 }
126
127 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
128
129 // Only pass -x if gcc will understand it; otherwise hope gcc
130 // understands the suffix correctly. The main use case this would go
131 // wrong in is for linker inputs if they happened to have an odd
132 // suffix; really the only way to get this to happen is a command
133 // like '-x foobar a.c' which will treat a.c like a linker input.
134 //
135 // FIXME: For the linker case specifically, can we safely convert
136 // inputs into '-Wl,' options?
137 for (const auto &II : Inputs) {
138 // Don't try to pass LLVM or AST inputs to a generic gcc.
139 if (types::isLLVMIR(II.getType()))
140 D.Diag(clang::diag::err_drv_no_linker_llvm_support)
141 << getToolChain().getTripleString();
142 else if (II.getType() == types::TY_AST)
143 D.Diag(diag::err_drv_no_ast_support) << getToolChain().getTripleString();
144 else if (II.getType() == types::TY_ModuleFile)
145 D.Diag(diag::err_drv_no_module_support)
146 << getToolChain().getTripleString();
147
148 if (types::canTypeBeUserSpecified(II.getType())) {
149 CmdArgs.push_back("-x");
150 CmdArgs.push_back(types::getTypeName(II.getType()));
151 }
152
153 if (II.isFilename())
154 CmdArgs.push_back(II.getFilename());
155 else {
156 const Arg &A = II.getInputArg();
157
158 // Reverse translate some rewritten options.
159 if (A.getOption().matches(options::OPT_Z_reserved_lib_stdcxx)) {
160 CmdArgs.push_back("-lstdc++");
161 continue;
162 }
163
164 // Don't render as input, we need gcc to do the translations.
165 A.render(Args, CmdArgs);
166 }
167 }
168
169 const std::string &customGCCName = D.getCCCGenericGCCName();
170 const char *GCCName;
171 if (!customGCCName.empty())
172 GCCName = customGCCName.c_str();
173 else if (D.CCCIsCXX()) {
174 GCCName = "g++";
175 } else
176 GCCName = "gcc";
177
178 const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath(GCCName));
179 C.addCommand(std::make_unique<Command>(JA, *this,
180 ResponseFileSupport::AtFileCurCP(),
181 Exec, CmdArgs, Inputs, Output));
182}
183
184void tools::gcc::Preprocessor::RenderExtraToolArgs(
185 const JobAction &JA, ArgStringList &CmdArgs) const {
186 CmdArgs.push_back("-E");
187}
188
189void tools::gcc::Compiler::RenderExtraToolArgs(const JobAction &JA,
190 ArgStringList &CmdArgs) const {
191 const Driver &D = getToolChain().getDriver();
192
193 switch (JA.getType()) {
194 // If -flto, etc. are present then make sure not to force assembly output.
195 case types::TY_LLVM_IR:
196 case types::TY_LTO_IR:
197 case types::TY_LLVM_BC:
198 case types::TY_LTO_BC:
199 CmdArgs.push_back("-c");
200 break;
201 // We assume we've got an "integrated" assembler in that gcc will produce an
202 // object file itself.
203 case types::TY_Object:
204 CmdArgs.push_back("-c");
205 break;
206 case types::TY_PP_Asm:
207 CmdArgs.push_back("-S");
208 break;
209 case types::TY_Nothing:
210 CmdArgs.push_back("-fsyntax-only");
211 break;
212 default:
213 D.Diag(diag::err_drv_invalid_gcc_output_type) << getTypeName(JA.getType());
214 }
215}
216
217void tools::gcc::Linker::RenderExtraToolArgs(const JobAction &JA,
218 ArgStringList &CmdArgs) const {
219 // The types are (hopefully) good enough.
220}
221
222static bool getStatic(const ArgList &Args) {
223 return Args.hasArg(options::OPT_static) &&
224 !Args.hasArg(options::OPT_static_pie);
225}
226
227void tools::gnutools::StaticLibTool::ConstructJob(
228 Compilation &C, const JobAction &JA, const InputInfo &Output,
229 const InputInfoList &Inputs, const ArgList &Args,
230 const char *LinkingOutput) const {
231 const Driver &D = getToolChain().getDriver();
232
233 // Silence warning for "clang -g foo.o -o foo"
234 Args.ClaimAllArgs(options::OPT_g_Group);
235 // and "clang -emit-llvm foo.o -o foo"
236 Args.ClaimAllArgs(options::OPT_emit_llvm);
237 // and for "clang -w foo.o -o foo". Other warning options are already
238 // handled somewhere else.
239 Args.ClaimAllArgs(options::OPT_w);
240 // Silence warnings when linking C code with a C++ '-stdlib' argument.
241 Args.ClaimAllArgs(options::OPT_stdlib_EQ);
242
243 // ar tool command "llvm-ar <options> <output_file> <input_files>".
244 ArgStringList CmdArgs;
245 // Create and insert file members with a deterministic index.
246 CmdArgs.push_back("rcsD");
247 Args.AddAllArgValues(CmdArgs, options::OPT_Xstatic_lib_tool);
248 CmdArgs.push_back(Output.getFilename());
249
250 for (const auto &II : Inputs) {
251 if (II.isFilename()) {
252 CmdArgs.push_back(II.getFilename());
253 }
254 }
255
256 // Delete old output archive file if it already exists before generating a new
257 // archive file.
258 auto OutputFileName = Output.getFilename();
259 if (Output.isFilename() && llvm::sys::fs::exists(OutputFileName)) {
260 if (std::error_code EC = llvm::sys::fs::remove(OutputFileName)) {
261 D.Diag(diag::err_drv_unable_to_remove_file) << EC.message();
262 return;
263 }
264 }
265
266 const char *Exec = Args.MakeArgString(getToolChain().GetStaticLibToolPath());
267 C.addCommand(std::make_unique<Command>(JA, *this,
268 ResponseFileSupport::AtFileCurCP(),
269 Exec, CmdArgs, Inputs, Output));
270}
271
272void tools::gnutools::Linker::ConstructJob(Compilation &C, const JobAction &JA,
273 const InputInfo &Output,
274 const InputInfoList &Inputs,
275 const ArgList &Args,
276 const char *LinkingOutput) const {
277 // FIXME: The Linker class constructor takes a ToolChain and not a
278 // Generic_ELF, so the static_cast might return a reference to a invalid
279 // instance (see PR45061). Ideally, the Linker constructor needs to take a
280 // Generic_ELF instead.
281 const auto &ToolChain = static_cast<const Generic_ELF &>(getToolChain());
282 const Driver &D = ToolChain.getDriver();
283
284 const llvm::Triple &Triple = getToolChain().getEffectiveTriple();
285
286 const llvm::Triple::ArchType Arch = ToolChain.getArch();
287 const bool isOHOSFamily = ToolChain.getTriple().isOHOSFamily();
288 const bool isAndroid = ToolChain.getTriple().isAndroid();
289 const bool IsIAMCU = ToolChain.getTriple().isOSIAMCU();
290 const bool IsVE = ToolChain.getTriple().isVE();
291 const bool IsStaticPIE = getStaticPIE(Args, ToolChain);
292 const bool IsStatic = getStatic(Args);
293 const bool HasCRTBeginEndFiles =
294 ToolChain.getTriple().hasEnvironment() ||
295 (ToolChain.getTriple().getVendor() != llvm::Triple::MipsTechnologies);
296
297 ArgStringList CmdArgs;
298
299 // Silence warning for "clang -g foo.o -o foo"
300 Args.ClaimAllArgs(options::OPT_g_Group);
301 // and "clang -emit-llvm foo.o -o foo"
302 Args.ClaimAllArgs(options::OPT_emit_llvm);
303 // and for "clang -w foo.o -o foo". Other warning options are already
304 // handled somewhere else.
305 Args.ClaimAllArgs(options::OPT_w);
306
307 if (!D.SysRoot.empty())
308 CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot));
309
310 if (Triple.isARM() || Triple.isThumb()) {
311 bool IsBigEndian = arm::isARMBigEndian(Triple, Args);
312 if (IsBigEndian)
313 arm::appendBE8LinkFlag(Args, CmdArgs, Triple);
314 CmdArgs.push_back(IsBigEndian ? "-EB" : "-EL");
315 } else if (Triple.isAArch64()) {
316 CmdArgs.push_back(Arch == llvm::Triple::aarch64_be ? "-EB" : "-EL");
317 }
318
319 // Most Android ARM64 targets should enable the linker fix for erratum
320 // 843419. Only non-Cortex-A53 devices are allowed to skip this flag.
321 if (Arch == llvm::Triple::aarch64 && (isAndroid || isOHOSFamily) &&
322 Args.hasFlag(options::OPT_mfix_cortex_a53_843419,
323 options::OPT_mno_fix_cortex_a53_843419, true)) {
324 std::string CPU = getCPUName(D, Args, Triple);
325 if (CPU.empty() || CPU == "generic" || CPU == "cortex-a53")
326 CmdArgs.push_back("--fix-cortex-a53-843419");
327 }
328
329 ToolChain.addExtraOpts(CmdArgs);
330
331 CmdArgs.push_back("--eh-frame-hdr");
332
333 if (const char *LDMOption = getLDMOption(ToolChain.getTriple(), Args)) {
334 CmdArgs.push_back("-m");
335 CmdArgs.push_back(LDMOption);
336 } else {
337 D.Diag(diag::err_target_unknown_triple) << Triple.str();
338 return;
339 }
340
341 if (Triple.isLoongArch() || Triple.isRISCV()) {
342 CmdArgs.push_back("-X");
343 if (Args.hasArg(options::OPT_mno_relax))
344 CmdArgs.push_back("--no-relax");
345 }
346
347 const bool IsShared = Args.hasArg(options::OPT_shared);
348 if (IsShared)
349 CmdArgs.push_back("-shared");
350 bool IsPIE = false;
351 if (IsStaticPIE) {
352 CmdArgs.push_back("-static");
353 CmdArgs.push_back("-pie");
354 CmdArgs.push_back("--no-dynamic-linker");
355 CmdArgs.push_back("-z");
356 CmdArgs.push_back("text");
357 } else if (IsStatic) {
358 CmdArgs.push_back("-static");
359 } else if (!Args.hasArg(options::OPT_r)) {
360 if (Args.hasArg(options::OPT_rdynamic))
361 CmdArgs.push_back("-export-dynamic");
362 if (!IsShared) {
363 IsPIE = Args.hasFlag(options::OPT_pie, options::OPT_no_pie,
364 ToolChain.isPIEDefault(Args));
365 if (IsPIE)
366 CmdArgs.push_back("-pie");
367 CmdArgs.push_back("-dynamic-linker");
368 CmdArgs.push_back(Args.MakeArgString(Twine(D.DyldPrefix) +
369 ToolChain.getDynamicLinker(Args)));
370 }
371 }
372
373 CmdArgs.push_back("-o");
374 CmdArgs.push_back(Output.getFilename());
375
376 Args.addAllArgs(CmdArgs, {options::OPT_s, options::OPT_t, options::OPT_u});
377
378 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles,
379 options::OPT_r)) {
380 if (!isAndroid && !IsIAMCU) {
381 const char *crt1 = nullptr;
382 if (!Args.hasArg(options::OPT_shared)) {
383 if (Args.hasArg(options::OPT_pg))
384 crt1 = "gcrt1.o";
385 else if (IsPIE)
386 crt1 = "Scrt1.o";
387 else if (IsStaticPIE)
388 crt1 = "rcrt1.o";
389 else
390 crt1 = "crt1.o";
391 }
392 if (crt1)
393 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crt1)));
394
395 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o")));
396 }
397
398 if (IsVE) {
399 CmdArgs.push_back("-z");
400 CmdArgs.push_back("max-page-size=0x4000000");
401 }
402
403 if (IsIAMCU)
404 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt0.o")));
405 else if (HasCRTBeginEndFiles) {
406 std::string P;
407 if (ToolChain.GetRuntimeLibType(Args) == ToolChain::RLT_CompilerRT &&
408 !isAndroid) {
409 std::string crtbegin = ToolChain.getCompilerRT(Args, "crtbegin",
410 ToolChain::FT_Object);
411 if (ToolChain.getVFS().exists(crtbegin))
412 P = crtbegin;
413 }
414 if (P.empty()) {
415 const char *crtbegin;
416 if (Args.hasArg(options::OPT_shared))
417 crtbegin = isAndroid ? "crtbegin_so.o" : "crtbeginS.o";
418 else if (IsStatic)
419 crtbegin = isAndroid ? "crtbegin_static.o" : "crtbeginT.o";
420 else if (IsPIE || IsStaticPIE)
421 crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbeginS.o";
422 else
423 crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbegin.o";
424 P = ToolChain.GetFilePath(crtbegin);
425 }
426 CmdArgs.push_back(Args.MakeArgString(P));
427 }
428
429 // Add crtfastmath.o if available and fast math is enabled.
430 ToolChain.addFastMathRuntimeIfAvailable(Args, CmdArgs);
431
432 if (isAndroid && Args.hasFlag(options::OPT_fandroid_pad_segment,
433 options::OPT_fno_android_pad_segment, false))
434 CmdArgs.push_back(
435 Args.MakeArgString(ToolChain.GetFilePath("crt_pad_segment.o")));
436 }
437
438 Args.addAllArgs(CmdArgs, {options::OPT_L});
439
440 ToolChain.AddFilePathLibArgs(Args, CmdArgs);
441
442 if (auto LTO = ToolChain.getLTOMode(Args); LTO != LTOK_None)
443 addLTOOptions(ToolChain, Args, CmdArgs, Output, Inputs, LTO == LTOK_Thin);
444
445 if (Args.hasArg(options::OPT_Z_Xlinker__no_demangle))
446 CmdArgs.push_back("--no-demangle");
447
448 bool NeedsSanitizerDeps = addSanitizerRuntimes(ToolChain, Args, CmdArgs);
449 bool NeedsXRayDeps = addXRayRuntime(ToolChain, Args, CmdArgs);
450 addLinkerCompressDebugSectionsOption(ToolChain, Args, CmdArgs);
451 AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA);
452
453 ToolChain.addOffloadRTLibs(C.getActiveOffloadKinds(), Args, CmdArgs);
454
455 // The profile runtime also needs access to system libraries.
456 getToolChain().addProfileRTLibs(Args, CmdArgs);
457
458 if (D.CCCIsCXX() &&
459 !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs,
460 options::OPT_r)) {
461 if (ToolChain.ShouldLinkCXXStdlib(Args)) {
462 bool OnlyLibstdcxxStatic = Args.hasArg(options::OPT_static_libstdcxx) &&
463 !Args.hasArg(options::OPT_static);
464 if (OnlyLibstdcxxStatic)
465 CmdArgs.push_back("-Bstatic");
466 ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs);
467 if (OnlyLibstdcxxStatic)
468 CmdArgs.push_back("-Bdynamic");
469 }
470 CmdArgs.push_back("-lm");
471 }
472
473 // Silence warnings when linking C code with a C++ '-stdlib' argument.
474 Args.ClaimAllArgs(options::OPT_stdlib_EQ);
475
476 // Additional linker set-up and flags for Fortran. This is required in order
477 // to generate executables. As Fortran runtime depends on the C runtime,
478 // these dependencies need to be listed before the C runtime below (i.e.
479 // AddRunTimeLibs).
480 if (D.IsFlangMode() &&
481 !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
482 ToolChain.addFortranRuntimeLibraryPath(Args, CmdArgs);
483 ToolChain.addFortranRuntimeLibs(Args, CmdArgs);
484 CmdArgs.push_back("-lm");
485 }
486
487 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_r)) {
488 if (!Args.hasArg(options::OPT_nodefaultlibs)) {
489 if (IsStatic || IsStaticPIE)
490 CmdArgs.push_back("--start-group");
491
492 if (NeedsSanitizerDeps)
493 linkSanitizerRuntimeDeps(ToolChain, Args, CmdArgs);
494
495 if (NeedsXRayDeps)
496 linkXRayRuntimeDeps(ToolChain, Args, CmdArgs);
497
498 bool WantPthread = Args.hasArg(options::OPT_pthread) ||
499 Args.hasArg(options::OPT_pthreads);
500
501 // Use the static OpenMP runtime with -static-openmp
502 bool StaticOpenMP = Args.hasArg(options::OPT_static_openmp) &&
503 !Args.hasArg(options::OPT_static);
504
505 // FIXME: Only pass GompNeedsRT = true for platforms with libgomp that
506 // require librt. Most modern Linux platforms do, but some may not.
507 if (addOpenMPRuntime(C, CmdArgs, ToolChain, Args, StaticOpenMP,
508 JA.isHostOffloading(Action::OFK_OpenMP),
509 /* GompNeedsRT= */ true))
510 // OpenMP runtimes implies pthreads when using the GNU toolchain.
511 // FIXME: Does this really make sense for all GNU toolchains?
512 WantPthread = true;
513
514 addLLVMOffloadingRuntime(C, CmdArgs, ToolChain, Args);
515 AddRunTimeLibs(ToolChain, D, CmdArgs, Args);
516
517 // LLVM support for atomics on 32-bit SPARC V8+ is incomplete, so
518 // forcibly link with libatomic as a workaround.
519 // TODO: Issue #41880 and D118021.
520 if (getToolChain().getTriple().getArch() == llvm::Triple::sparc) {
521 CmdArgs.push_back("--push-state");
522 CmdArgs.push_back("--as-needed");
523 CmdArgs.push_back("-latomic");
524 CmdArgs.push_back("--pop-state");
525 }
526
527 // We don't need libpthread neither for bionic (Android) nor for musl,
528 // (used by OHOS as runtime library).
529 if (WantPthread && !isAndroid && !isOHOSFamily)
530 CmdArgs.push_back("-lpthread");
531
532 if (Args.hasArg(options::OPT_fsplit_stack))
533 CmdArgs.push_back("--wrap=pthread_create");
534
535 if (!Args.hasArg(options::OPT_nolibc))
536 CmdArgs.push_back("-lc");
537
538 // musl does not provide __stack_chk_fail_local, but GCC emits calls
539 // to it in PIC/PIE code on some targets (32-bit x86, PowerPC). musl
540 // distributions ship the symbol in libssp_nonshared.a and make GCC
541 // link it when stack protection is on; match that if the library
542 // exists.
543 if (ToolChain.getTriple().isMusl()) {
544 bool WantsSSP = ToolChain.GetDefaultStackProtectorLevel(
545 /*KernelOrKext=*/false) != LangOptions::SSPOff;
546 if (Arg *A = Args.getLastArg(options::OPT_fno_stack_protector,
547 options::OPT_fstack_protector,
548 options::OPT_fstack_protector_all,
549 options::OPT_fstack_protector_strong))
550 WantsSSP = !A->getOption().matches(options::OPT_fno_stack_protector);
551 if (WantsSSP &&
552 ToolChain.GetFilePath("libssp_nonshared.a") != "libssp_nonshared.a")
553 CmdArgs.push_back("-lssp_nonshared");
554 }
555
556 // Add IAMCU specific libs, if needed.
557 if (IsIAMCU)
558 CmdArgs.push_back("-lgloss");
559
560 if (IsStatic || IsStaticPIE)
561 CmdArgs.push_back("--end-group");
562 else
563 AddRunTimeLibs(ToolChain, D, CmdArgs, Args);
564
565 // Add IAMCU specific libs (outside the group), if needed.
566 if (IsIAMCU) {
567 CmdArgs.push_back("--as-needed");
568 CmdArgs.push_back("-lsoftfp");
569 CmdArgs.push_back("--no-as-needed");
570 }
571 }
572
573 if (!Args.hasArg(options::OPT_nostartfiles) && !IsIAMCU) {
574 if (HasCRTBeginEndFiles) {
575 std::string P;
576 if (ToolChain.GetRuntimeLibType(Args) == ToolChain::RLT_CompilerRT &&
577 !isAndroid) {
578 std::string crtend = ToolChain.getCompilerRT(Args, "crtend",
579 ToolChain::FT_Object);
580 if (ToolChain.getVFS().exists(crtend))
581 P = crtend;
582 }
583 if (P.empty()) {
584 const char *crtend;
585 if (Args.hasArg(options::OPT_shared))
586 crtend = isAndroid ? "crtend_so.o" : "crtendS.o";
587 else if (IsPIE || IsStaticPIE)
588 crtend = isAndroid ? "crtend_android.o" : "crtendS.o";
589 else
590 crtend = isAndroid ? "crtend_android.o" : "crtend.o";
591 P = ToolChain.GetFilePath(crtend);
592 }
593 CmdArgs.push_back(Args.MakeArgString(P));
594 }
595 if (!isAndroid)
596 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o")));
597 }
598 }
599
600 // Emit -T after -L paths so that INPUT()/GROUP() directives in the linker
601 // script resolve against the user-supplied and toolchain search paths in GNU
602 // ld.
603 Args.addAllArgs(CmdArgs, {options::OPT_T});
604
605 const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath());
606 C.addCommand(std::make_unique<Command>(JA, *this,
607 ResponseFileSupport::AtFileCurCP(),
608 Exec, CmdArgs, Inputs, Output));
609}
610
611void tools::gnutools::Assembler::ConstructJob(Compilation &C,
612 const JobAction &JA,
613 const InputInfo &Output,
614 const InputInfoList &Inputs,
615 const ArgList &Args,
616 const char *LinkingOutput) const {
617 const auto &D = getToolChain().getDriver();
618
619 claimNoWarnArgs(Args);
620
621 ArgStringList CmdArgs;
622
623 llvm::Reloc::Model RelocationModel;
624 unsigned PICLevel;
625 bool IsPIE;
626 const char *DefaultAssembler = "as";
627 // Enforce GNU as on Solaris; the native assembler's input syntax isn't fully
628 // compatible.
629 if (getToolChain().getTriple().isOSSolaris())
630 DefaultAssembler = "gas";
631 std::tie(RelocationModel, PICLevel, IsPIE) =
632 ParsePICArgs(getToolChain(), Args);
633
634 if (const Arg *A = Args.getLastArg(options::OPT_gz, options::OPT_gz_EQ)) {
635 if (A->getOption().getID() == options::OPT_gz) {
636 CmdArgs.push_back("--compress-debug-sections");
637 } else {
638 StringRef Value = A->getValue();
639 if (Value == "none" || Value == "zlib" || Value == "zstd") {
640 CmdArgs.push_back(
641 Args.MakeArgString("--compress-debug-sections=" + Twine(Value)));
642 } else {
643 D.Diag(diag::err_drv_unsupported_option_argument)
644 << A->getSpelling() << Value;
645 }
646 }
647 }
648
649 switch (getToolChain().getArch()) {
650 default:
651 break;
652 // Add --32/--64 to make sure we get the format we want.
653 // This is incomplete
654 case llvm::Triple::x86:
655 CmdArgs.push_back("--32");
656 break;
657 case llvm::Triple::x86_64:
658 if (getToolChain().getTriple().isX32())
659 CmdArgs.push_back("--x32");
660 else
661 CmdArgs.push_back("--64");
662 break;
663 case llvm::Triple::ppc: {
664 CmdArgs.push_back("-a32");
665 CmdArgs.push_back("-mppc");
666 CmdArgs.push_back("-mbig-endian");
667 CmdArgs.push_back(ppc::getPPCAsmModeForCPU(
668 getCPUName(D, Args, getToolChain().getTriple())));
669 break;
670 }
671 case llvm::Triple::ppcle: {
672 CmdArgs.push_back("-a32");
673 CmdArgs.push_back("-mppc");
674 CmdArgs.push_back("-mlittle-endian");
675 CmdArgs.push_back(ppc::getPPCAsmModeForCPU(
676 getCPUName(D, Args, getToolChain().getTriple())));
677 break;
678 }
679 case llvm::Triple::ppc64: {
680 CmdArgs.push_back("-a64");
681 CmdArgs.push_back("-mppc64");
682 CmdArgs.push_back("-mbig-endian");
683 CmdArgs.push_back(ppc::getPPCAsmModeForCPU(
684 getCPUName(D, Args, getToolChain().getTriple())));
685 break;
686 }
687 case llvm::Triple::ppc64le: {
688 CmdArgs.push_back("-a64");
689 CmdArgs.push_back("-mppc64");
690 CmdArgs.push_back("-mlittle-endian");
691 CmdArgs.push_back(ppc::getPPCAsmModeForCPU(
692 getCPUName(D, Args, getToolChain().getTriple())));
693 break;
694 }
695 case llvm::Triple::riscv32:
696 case llvm::Triple::riscv64:
697 case llvm::Triple::riscv32be:
698 case llvm::Triple::riscv64be: {
699 StringRef ABIName = riscv::getRISCVABI(Args, getToolChain().getTriple());
700 CmdArgs.push_back("-mabi");
701 CmdArgs.push_back(ABIName.data());
702 std::string MArchName =
703 riscv::getRISCVArch(Args, getToolChain().getTriple());
704 CmdArgs.push_back("-march");
705 CmdArgs.push_back(Args.MakeArgString(MArchName));
706 if (!Args.hasFlag(options::OPT_mrelax, options::OPT_mno_relax, true))
707 Args.addOptOutFlag(CmdArgs, options::OPT_mrelax, options::OPT_mno_relax);
708 break;
709 }
710 case llvm::Triple::sparc:
711 case llvm::Triple::sparcel: {
712 CmdArgs.push_back("-32");
713 std::string CPU = getCPUName(D, Args, getToolChain().getTriple());
714 CmdArgs.push_back(
715 sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple()));
716 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
717 break;
718 }
719 case llvm::Triple::sparcv9: {
720 CmdArgs.push_back("-64");
721 std::string CPU = getCPUName(D, Args, getToolChain().getTriple());
722 CmdArgs.push_back(
723 sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple()));
724 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
725 break;
726 }
727 case llvm::Triple::arm:
728 case llvm::Triple::armeb:
729 case llvm::Triple::thumb:
730 case llvm::Triple::thumbeb: {
731 const llvm::Triple &Triple2 = getToolChain().getTriple();
732 CmdArgs.push_back(arm::isARMBigEndian(Triple2, Args) ? "-EB" : "-EL");
733 switch (Triple2.getSubArch()) {
734 case llvm::Triple::ARMSubArch_v7:
735 CmdArgs.push_back("-mfpu=neon");
736 break;
737 case llvm::Triple::ARMSubArch_v8:
738 CmdArgs.push_back("-mfpu=crypto-neon-fp-armv8");
739 break;
740 default:
741 break;
742 }
743
744 switch (arm::getARMFloatABI(getToolChain(), Args)) {
745 case arm::FloatABI::Invalid: llvm_unreachable("must have an ABI!");
746 case arm::FloatABI::Soft:
747 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=soft"));
748 break;
749 case arm::FloatABI::SoftFP:
750 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=softfp"));
751 break;
752 case arm::FloatABI::Hard:
753 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=hard"));
754 break;
755 }
756
757 Args.AddLastArg(CmdArgs, options::OPT_march_EQ);
758 normalizeCPUNamesForAssembler(Args, CmdArgs);
759
760 Args.AddLastArg(CmdArgs, options::OPT_mfpu_EQ);
761 // The integrated assembler doesn't implement e_flags setting behavior for
762 // -meabi=gnu (gcc -mabi={apcs-gnu,atpcs} passes -meabi=gnu to gas). For
763 // compatibility we accept but warn.
764 if (Arg *A = Args.getLastArgNoClaim(options::OPT_mabi_EQ))
765 A->ignoreTargetSpecific();
766 break;
767 }
768 case llvm::Triple::aarch64:
769 case llvm::Triple::aarch64_be: {
770 CmdArgs.push_back(
771 getToolChain().getArch() == llvm::Triple::aarch64_be ? "-EB" : "-EL");
772 Args.AddLastArg(CmdArgs, options::OPT_march_EQ);
773 normalizeCPUNamesForAssembler(Args, CmdArgs);
774
775 break;
776 }
777 case llvm::Triple::loongarch32: {
778 StringRef ABIName =
779 loongarch::getLoongArchABI(D, Args, getToolChain().getTriple());
780 CmdArgs.push_back(Args.MakeArgString("-mabi=" + ABIName));
781 break;
782 }
783 case llvm::Triple::loongarch64: {
784 StringRef ABIName =
785 loongarch::getLoongArchABI(D, Args, getToolChain().getTriple());
786 CmdArgs.push_back(Args.MakeArgString("-mabi=" + ABIName));
787 break;
788 }
789 case llvm::Triple::mips:
790 case llvm::Triple::mipsel:
791 case llvm::Triple::mips64:
792 case llvm::Triple::mips64el: {
793 StringRef CPUName;
794 StringRef ABIName;
795 mips::getMipsCPUAndABI(Args, getToolChain().getTriple(), CPUName, ABIName);
796 ABIName = mips::getGnuCompatibleMipsABIName(ABIName);
797
798 CmdArgs.push_back("-march");
799 CmdArgs.push_back(CPUName.data());
800
801 CmdArgs.push_back("-mabi");
802 CmdArgs.push_back(ABIName.data());
803
804 // -mno-shared should be emitted unless -fpic, -fpie, -fPIC, -fPIE,
805 // or -mshared (not implemented) is in effect.
806 if (RelocationModel == llvm::Reloc::Static)
807 CmdArgs.push_back("-mno-shared");
808
809 // LLVM doesn't support -mplt yet and acts as if it is always given.
810 // However, -mplt has no effect with the N64 ABI.
811 if (ABIName != "64" && !Args.hasArg(options::OPT_mno_abicalls))
812 CmdArgs.push_back("-call_nonpic");
813
814 if (getToolChain().getTriple().isLittleEndian())
815 CmdArgs.push_back("-EL");
816 else
817 CmdArgs.push_back("-EB");
818
819 if (Arg *A = Args.getLastArg(options::OPT_mnan_EQ)) {
820 if (StringRef(A->getValue()) == "2008")
821 CmdArgs.push_back(Args.MakeArgString("-mnan=2008"));
822 }
823
824 // Add the last -mfp32/-mfpxx/-mfp64 or -mfpxx if it is enabled by default.
825 if (Arg *A = Args.getLastArg(options::OPT_mfp32, options::OPT_mfpxx,
826 options::OPT_mfp64)) {
827 A->claim();
828 A->render(Args, CmdArgs);
829 } else if (mips::shouldUseFPXX(
830 Args, getToolChain().getTriple(), CPUName, ABIName,
831 mips::getMipsFloatABI(getToolChain().getDriver(), Args,
832 getToolChain().getTriple())))
833 CmdArgs.push_back("-mfpxx");
834
835 // Pass on -mmips16 or -mno-mips16. However, the assembler equivalent of
836 // -mno-mips16 is actually -no-mips16.
837 if (Arg *A =
838 Args.getLastArg(options::OPT_mips16, options::OPT_mno_mips16)) {
839 if (A->getOption().matches(options::OPT_mips16)) {
840 A->claim();
841 A->render(Args, CmdArgs);
842 } else {
843 A->claim();
844 CmdArgs.push_back("-no-mips16");
845 }
846 }
847
848 Args.AddLastArg(CmdArgs, options::OPT_mmicromips,
849 options::OPT_mno_micromips);
850 Args.AddLastArg(CmdArgs, options::OPT_mdsp, options::OPT_mno_dsp);
851 Args.AddLastArg(CmdArgs, options::OPT_mdspr2, options::OPT_mno_dspr2);
852
853 if (Arg *A = Args.getLastArg(options::OPT_mmsa, options::OPT_mno_msa)) {
854 // Do not use AddLastArg because not all versions of MIPS assembler
855 // support -mmsa / -mno-msa options.
856 if (A->getOption().matches(options::OPT_mmsa))
857 CmdArgs.push_back(Args.MakeArgString("-mmsa"));
858 }
859
860 Args.AddLastArg(CmdArgs, options::OPT_mhard_float,
861 options::OPT_msoft_float);
862
863 Args.AddLastArg(CmdArgs, options::OPT_mdouble_float,
864 options::OPT_msingle_float);
865
866 Args.AddLastArg(CmdArgs, options::OPT_modd_spreg,
867 options::OPT_mno_odd_spreg);
868
869 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
870 break;
871 }
872 case llvm::Triple::systemz: {
873 // Always pass an -march option, since our default of z10 is later
874 // than the GNU assembler's default.
875 std::string CPUName =
876 systemz::getSystemZTargetCPU(Args, getToolChain().getTriple());
877 CmdArgs.push_back(Args.MakeArgString("-march=" + CPUName));
878 break;
879 }
880 case llvm::Triple::ve:
881 DefaultAssembler = "nas";
882 }
883
884 for (const Arg *A : Args.filtered(options::OPT_ffile_prefix_map_EQ,
885 options::OPT_fdebug_prefix_map_EQ)) {
886 StringRef Map = A->getValue();
887 if (!Map.contains('='))
888 D.Diag(diag::err_drv_invalid_argument_to_option)
889 << Map << A->getOption().getName();
890 else {
891 CmdArgs.push_back(Args.MakeArgString("--debug-prefix-map"));
892 CmdArgs.push_back(Args.MakeArgString(Map));
893 }
894 A->claim();
895 }
896
897 Args.AddAllArgs(CmdArgs, options::OPT_I);
898 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
899
900 CmdArgs.push_back("-o");
901 CmdArgs.push_back(Output.getFilename());
902
903 for (const auto &II : Inputs)
904 CmdArgs.push_back(II.getFilename());
905
906 if (Arg *A = Args.getLastArg(options::OPT_g_Flag, options::OPT_gN_Group,
907 options::OPT_gdwarf_2, options::OPT_gdwarf_3,
908 options::OPT_gdwarf_4, options::OPT_gdwarf_5,
909 options::OPT_gdwarf))
910 if (!A->getOption().matches(options::OPT_g0)) {
911 Args.AddLastArg(CmdArgs, options::OPT_g_Flag);
912
913 unsigned DwarfVersion = getDwarfVersion(getToolChain(), Args);
914 CmdArgs.push_back(Args.MakeArgString("-gdwarf-" + Twine(DwarfVersion)));
915 }
916
917 const char *Exec =
918 Args.MakeArgString(getToolChain().GetProgramPath(DefaultAssembler));
919 C.addCommand(std::make_unique<Command>(JA, *this,
920 ResponseFileSupport::AtFileCurCP(),
921 Exec, CmdArgs, Inputs, Output));
922
923 // Handle the debug info splitting at object creation time if we're
924 // creating an object.
925 // TODO: Currently only works on linux with newer objcopy.
926 if (Args.hasArg(options::OPT_gsplit_dwarf) &&
927 getToolChain().getTriple().isOSLinux())
928 SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output,
929 SplitDebugName(JA, Args, Inputs[0], Output));
930}
931
932namespace {
933// Filter to remove Multilibs that don't exist as a suffix to Path
934class FilterNonExistent {
935 StringRef Base, File;
936 llvm::vfs::FileSystem &VFS;
937
938public:
939 FilterNonExistent(StringRef Base, StringRef File, llvm::vfs::FileSystem &VFS)
940 : Base(Base), File(File), VFS(VFS) {}
941 bool operator()(const Multilib &M) {
942 return !VFS.exists(Base + M.gccSuffix() + File);
943 }
944};
945} // end anonymous namespace
946
947static bool isSoftFloatABI(const ArgList &Args) {
948 Arg *A = Args.getLastArg(options::OPT_msoft_float, options::OPT_mhard_float,
949 options::OPT_mfloat_abi_EQ);
950 if (!A)
951 return false;
952
953 return A->getOption().matches(options::OPT_msoft_float) ||
954 (A->getOption().matches(options::OPT_mfloat_abi_EQ) &&
955 A->getValue() == StringRef("soft"));
956}
957
958static bool isArmOrThumbArch(llvm::Triple::ArchType Arch) {
959 return Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb;
960}
961
962static bool isMipsEL(llvm::Triple::ArchType Arch) {
963 return Arch == llvm::Triple::mipsel || Arch == llvm::Triple::mips64el;
964}
965
966static bool isMips16(const ArgList &Args) {
967 Arg *A = Args.getLastArg(options::OPT_mips16, options::OPT_mno_mips16);
968 return A && A->getOption().matches(options::OPT_mips16);
969}
970
971static bool isMicroMips(const ArgList &Args) {
972 Arg *A = Args.getLastArg(options::OPT_mmicromips, options::OPT_mno_micromips);
973 return A && A->getOption().matches(options::OPT_mmicromips);
974}
975
976static bool isMSP430(llvm::Triple::ArchType Arch) {
977 return Arch == llvm::Triple::msp430;
978}
979
980static bool findMipsCsMultilibs(const Driver &D,
981 const Multilib::flags_list &Flags,
982 FilterNonExistent &NonExistent,
983 DetectedMultilibs &Result) {
984 // Check for Code Sourcery toolchain multilibs
985 MultilibSet CSMipsMultilibs;
986 {
987 auto MArchMips16 = MultilibBuilder("/mips16").flag("-m32").flag("-mips16");
988
989 auto MArchMicroMips =
990 MultilibBuilder("/micromips").flag("-m32").flag("-mmicromips");
991
992 auto MArchDefault = MultilibBuilder("")
993 .flag("-mips16", /*Disallow=*/true)
994 .flag("-mmicromips", /*Disallow=*/true);
995
996 auto UCLibc = MultilibBuilder("/uclibc").flag("-muclibc");
997
998 auto SoftFloat = MultilibBuilder("/soft-float").flag("-msoft-float");
999
1000 auto Nan2008 = MultilibBuilder("/nan2008").flag("-mnan=2008");
1001
1002 auto DefaultFloat = MultilibBuilder("")
1003 .flag("-msoft-float", /*Disallow=*/true)
1004 .flag("-mnan=2008", /*Disallow=*/true);
1005
1006 auto BigEndian =
1007 MultilibBuilder("").flag("-EB").flag("-EL", /*Disallow=*/true);
1008
1009 auto LittleEndian =
1010 MultilibBuilder("/el").flag("-EL").flag("-EB", /*Disallow=*/true);
1011
1012 // Note that this one's osSuffix is ""
1013 auto MAbi64 = MultilibBuilder("")
1014 .gccSuffix("/64")
1015 .includeSuffix("/64")
1016 .flag("-mabi=n64")
1017 .flag("-mabi=n32", /*Disallow=*/true)
1018 .flag("-m32", /*Disallow=*/true);
1019
1020 CSMipsMultilibs =
1021 MultilibSetBuilder()
1022 .Either(MArchMips16, MArchMicroMips, MArchDefault)
1023 .Maybe(UCLibc)
1024 .Either(SoftFloat, Nan2008, DefaultFloat)
1025 .FilterOut("/micromips/nan2008")
1026 .FilterOut("/mips16/nan2008")
1027 .Either(BigEndian, LittleEndian)
1028 .Maybe(MAbi64)
1029 .FilterOut("/mips16.*/64")
1030 .FilterOut("/micromips.*/64")
1031 .makeMultilibSet()
1032 .FilterOut(NonExistent)
1033 .setIncludeDirsCallback([](const Multilib &M) {
1034 std::vector<std::string> Dirs({"/include"});
1035 if (StringRef(M.includeSuffix()).starts_with("/uclibc"))
1036 Dirs.push_back(
1037 "/../../../../mips-linux-gnu/libc/uclibc/usr/include");
1038 else
1039 Dirs.push_back("/../../../../mips-linux-gnu/libc/usr/include");
1040 return Dirs;
1041 });
1042 }
1043
1044 MultilibSet DebianMipsMultilibs;
1045 {
1046 MultilibBuilder MAbiN32 =
1047 MultilibBuilder().gccSuffix("/n32").includeSuffix("/n32").flag(
1048 "-mabi=n32");
1049
1050 MultilibBuilder M64 = MultilibBuilder()
1051 .gccSuffix("/64")
1052 .includeSuffix("/64")
1053 .flag("-m64")
1054 .flag("-m32", /*Disallow=*/true)
1055 .flag("-mabi=n32", /*Disallow=*/true);
1056
1057 MultilibBuilder M32 = MultilibBuilder()
1058 .gccSuffix("/32")
1059 .flag("-m64", /*Disallow=*/true)
1060 .flag("-m32")
1061 .flag("-mabi=n32", /*Disallow=*/true);
1062
1063 DebianMipsMultilibs = MultilibSetBuilder()
1064 .Either(M32, M64, MAbiN32)
1065 .makeMultilibSet()
1066 .FilterOut(NonExistent);
1067 }
1068
1069 // Sort candidates. Toolchain that best meets the directories tree goes first.
1070 // Then select the first toolchains matches command line flags.
1071 MultilibSet *Candidates[] = {&CSMipsMultilibs, &DebianMipsMultilibs};
1072 if (CSMipsMultilibs.size() < DebianMipsMultilibs.size())
1073 std::iter_swap(Candidates, Candidates + 1);
1074 for (const MultilibSet *Candidate : Candidates) {
1075 if (Candidate->select(D, Flags, Result.SelectedMultilibs)) {
1076 if (Candidate == &DebianMipsMultilibs)
1077 Result.BiarchSibling = Multilib();
1078 Result.Multilibs = *Candidate;
1079 return true;
1080 }
1081 }
1082 return false;
1083}
1084
1085static bool findMipsMuslMultilibs(const Driver &D,
1086 const Multilib::flags_list &Flags,
1087 FilterNonExistent &NonExistent,
1088 DetectedMultilibs &Result) {
1089 // Musl toolchain multilibs
1090 MultilibSet MuslMipsMultilibs;
1091 {
1092 auto MArchMipsR2 = MultilibBuilder("")
1093 .osSuffix("/mips-r2-hard-musl")
1094 .flag("-EB")
1095 .flag("-EL", /*Disallow=*/true)
1096 .flag("-march=mips32r2");
1097
1098 auto MArchMipselR2 = MultilibBuilder("/mipsel-r2-hard-musl")
1099 .flag("-EB", /*Disallow=*/true)
1100 .flag("-EL")
1101 .flag("-march=mips32r2");
1102
1103 MuslMipsMultilibs = MultilibSetBuilder()
1104 .Either(MArchMipsR2, MArchMipselR2)
1105 .makeMultilibSet();
1106
1107 // Specify the callback that computes the include directories.
1108 MuslMipsMultilibs.setIncludeDirsCallback([](const Multilib &M) {
1109 return std::vector<std::string>(
1110 {"/../sysroot" + M.osSuffix() + "/usr/include"});
1111 });
1112 }
1113 if (MuslMipsMultilibs.select(D, Flags, Result.SelectedMultilibs)) {
1114 Result.Multilibs = std::move(MuslMipsMultilibs);
1115 return true;
1116 }
1117 return false;
1118}
1119
1120static bool findMipsMtiMultilibs(const Driver &D,
1121 const Multilib::flags_list &Flags,
1122 FilterNonExistent &NonExistent,
1123 DetectedMultilibs &Result) {
1124 // CodeScape MTI toolchain v1.2 and early.
1125 MultilibSet MtiMipsMultilibsV1;
1126 {
1127 auto MArchMips32 = MultilibBuilder("/mips32")
1128 .flag("-m32")
1129 .flag("-m64", /*Disallow=*/true)
1130 .flag("-mmicromips", /*Disallow=*/true)
1131 .flag("-march=mips32");
1132
1133 auto MArchMicroMips = MultilibBuilder("/micromips")
1134 .flag("-m32")
1135 .flag("-m64", /*Disallow=*/true)
1136 .flag("-mmicromips");
1137
1138 auto MArchMips64r2 = MultilibBuilder("/mips64r2")
1139 .flag("-m32", /*Disallow=*/true)
1140 .flag("-m64")
1141 .flag("-march=mips64r2");
1142
1143 auto MArchMips64 = MultilibBuilder("/mips64")
1144 .flag("-m32", /*Disallow=*/true)
1145 .flag("-m64")
1146 .flag("-march=mips64r2", /*Disallow=*/true);
1147
1148 auto MArchDefault = MultilibBuilder("")
1149 .flag("-m32")
1150 .flag("-m64", /*Disallow=*/true)
1151 .flag("-mmicromips", /*Disallow=*/true)
1152 .flag("-march=mips32r2");
1153
1154 auto Mips16 = MultilibBuilder("/mips16").flag("-mips16");
1155
1156 auto UCLibc = MultilibBuilder("/uclibc").flag("-muclibc");
1157
1158 auto MAbi64 = MultilibBuilder("/64")
1159 .flag("-mabi=n64")
1160 .flag("-mabi=n32", /*Disallow=*/true)
1161 .flag("-m32", /*Disallow=*/true);
1162
1163 auto BigEndian =
1164 MultilibBuilder("").flag("-EB").flag("-EL", /*Disallow=*/true);
1165
1166 auto LittleEndian =
1167 MultilibBuilder("/el").flag("-EL").flag("-EB", /*Disallow=*/true);
1168
1169 auto SoftFloat = MultilibBuilder("/sof").flag("-msoft-float");
1170
1171 auto Nan2008 = MultilibBuilder("/nan2008").flag("-mnan=2008");
1172
1173 MtiMipsMultilibsV1 =
1174 MultilibSetBuilder()
1175 .Either(MArchMips32, MArchMicroMips, MArchMips64r2, MArchMips64,
1176 MArchDefault)
1177 .Maybe(UCLibc)
1178 .Maybe(Mips16)
1179 .FilterOut("/mips64/mips16")
1180 .FilterOut("/mips64r2/mips16")
1181 .FilterOut("/micromips/mips16")
1182 .Maybe(MAbi64)
1183 .FilterOut("/micromips/64")
1184 .FilterOut("/mips32/64")
1185 .FilterOut("^/64")
1186 .FilterOut("/mips16/64")
1187 .Either(BigEndian, LittleEndian)
1188 .Maybe(SoftFloat)
1189 .Maybe(Nan2008)
1190 .FilterOut(".*sof/nan2008")
1191 .makeMultilibSet()
1192 .FilterOut(NonExistent)
1193 .setIncludeDirsCallback([](const Multilib &M) {
1194 std::vector<std::string> Dirs({"/include"});
1195 if (StringRef(M.includeSuffix()).starts_with("/uclibc"))
1196 Dirs.push_back("/../../../../sysroot/uclibc/usr/include");
1197 else
1198 Dirs.push_back("/../../../../sysroot/usr/include");
1199 return Dirs;
1200 });
1201 }
1202
1203 // CodeScape IMG toolchain starting from v1.3.
1204 MultilibSet MtiMipsMultilibsV2;
1205 {
1206 auto BeHard = MultilibBuilder("/mips-r2-hard")
1207 .flag("-EB")
1208 .flag("-msoft-float", /*Disallow=*/true)
1209 .flag("-mnan=2008", /*Disallow=*/true)
1210 .flag("-muclibc", /*Disallow=*/true);
1211 auto BeSoft = MultilibBuilder("/mips-r2-soft")
1212 .flag("-EB")
1213 .flag("-msoft-float")
1214 .flag("-mnan=2008", /*Disallow=*/true);
1215 auto ElHard = MultilibBuilder("/mipsel-r2-hard")
1216 .flag("-EL")
1217 .flag("-msoft-float", /*Disallow=*/true)
1218 .flag("-mnan=2008", /*Disallow=*/true)
1219 .flag("-muclibc", /*Disallow=*/true);
1220 auto ElSoft = MultilibBuilder("/mipsel-r2-soft")
1221 .flag("-EL")
1222 .flag("-msoft-float")
1223 .flag("-mnan=2008", /*Disallow=*/true)
1224 .flag("-mmicromips", /*Disallow=*/true);
1225 auto BeHardNan = MultilibBuilder("/mips-r2-hard-nan2008")
1226 .flag("-EB")
1227 .flag("-msoft-float", /*Disallow=*/true)
1228 .flag("-mnan=2008")
1229 .flag("-muclibc", /*Disallow=*/true);
1230 auto ElHardNan = MultilibBuilder("/mipsel-r2-hard-nan2008")
1231 .flag("-EL")
1232 .flag("-msoft-float", /*Disallow=*/true)
1233 .flag("-mnan=2008")
1234 .flag("-muclibc", /*Disallow=*/true)
1235 .flag("-mmicromips", /*Disallow=*/true);
1236 auto BeHardNanUclibc = MultilibBuilder("/mips-r2-hard-nan2008-uclibc")
1237 .flag("-EB")
1238 .flag("-msoft-float", /*Disallow=*/true)
1239 .flag("-mnan=2008")
1240 .flag("-muclibc");
1241 auto ElHardNanUclibc = MultilibBuilder("/mipsel-r2-hard-nan2008-uclibc")
1242 .flag("-EL")
1243 .flag("-msoft-float", /*Disallow=*/true)
1244 .flag("-mnan=2008")
1245 .flag("-muclibc");
1246 auto BeHardUclibc = MultilibBuilder("/mips-r2-hard-uclibc")
1247 .flag("-EB")
1248 .flag("-msoft-float", /*Disallow=*/true)
1249 .flag("-mnan=2008", /*Disallow=*/true)
1250 .flag("-muclibc");
1251 auto ElHardUclibc = MultilibBuilder("/mipsel-r2-hard-uclibc")
1252 .flag("-EL")
1253 .flag("-msoft-float", /*Disallow=*/true)
1254 .flag("-mnan=2008", /*Disallow=*/true)
1255 .flag("-muclibc");
1256 auto ElMicroHardNan = MultilibBuilder("/micromipsel-r2-hard-nan2008")
1257 .flag("-EL")
1258 .flag("-msoft-float", /*Disallow=*/true)
1259 .flag("-mnan=2008")
1260 .flag("-mmicromips");
1261 auto ElMicroSoft = MultilibBuilder("/micromipsel-r2-soft")
1262 .flag("-EL")
1263 .flag("-msoft-float")
1264 .flag("-mnan=2008", /*Disallow=*/true)
1265 .flag("-mmicromips");
1266
1267 auto O32 = MultilibBuilder("/lib")
1268 .osSuffix("")
1269 .flag("-mabi=n32", /*Disallow=*/true)
1270 .flag("-mabi=n64", /*Disallow=*/true);
1271 auto N32 = MultilibBuilder("/lib32")
1272 .osSuffix("")
1273 .flag("-mabi=n32")
1274 .flag("-mabi=n64", /*Disallow=*/true);
1275 auto N64 = MultilibBuilder("/lib64")
1276 .osSuffix("")
1277 .flag("-mabi=n32", /*Disallow=*/true)
1278 .flag("-mabi=n64");
1279
1280 MtiMipsMultilibsV2 =
1281 MultilibSetBuilder()
1282 .Either({BeHard, BeSoft, ElHard, ElSoft, BeHardNan, ElHardNan,
1283 BeHardNanUclibc, ElHardNanUclibc, BeHardUclibc,
1284 ElHardUclibc, ElMicroHardNan, ElMicroSoft})
1285 .Either(O32, N32, N64)
1286 .makeMultilibSet()
1287 .FilterOut(NonExistent)
1288 .setIncludeDirsCallback([](const Multilib &M) {
1289 return std::vector<std::string>({"/../../../../sysroot" +
1290 M.includeSuffix() +
1291 "/../usr/include"});
1292 })
1293 .setFilePathsCallback([](const Multilib &M) {
1294 return std::vector<std::string>(
1295 {"/../../../../mips-mti-linux-gnu/lib" + M.gccSuffix()});
1296 });
1297 }
1298 for (auto *Candidate : {&MtiMipsMultilibsV1, &MtiMipsMultilibsV2}) {
1299 if (Candidate->select(D, Flags, Result.SelectedMultilibs)) {
1300 Result.Multilibs = *Candidate;
1301 return true;
1302 }
1303 }
1304 return false;
1305}
1306
1307static bool findMipsImgMultilibs(const Driver &D,
1308 const Multilib::flags_list &Flags,
1309 FilterNonExistent &NonExistent,
1310 DetectedMultilibs &Result) {
1311 // CodeScape IMG toolchain v1.2 and early.
1312 MultilibSet ImgMultilibsV1;
1313 {
1314 auto Mips64r6 = MultilibBuilder("/mips64r6")
1315 .flag("-m64")
1316 .flag("-m32", /*Disallow=*/true);
1317
1318 auto LittleEndian =
1319 MultilibBuilder("/el").flag("-EL").flag("-EB", /*Disallow=*/true);
1320
1321 auto MAbi64 = MultilibBuilder("/64")
1322 .flag("-mabi=n64")
1323 .flag("-mabi=n32", /*Disallow=*/true)
1324 .flag("-m32", /*Disallow=*/true);
1325
1326 ImgMultilibsV1 =
1327 MultilibSetBuilder()
1328 .Maybe(Mips64r6)
1329 .Maybe(MAbi64)
1330 .Maybe(LittleEndian)
1331 .makeMultilibSet()
1332 .FilterOut(NonExistent)
1333 .setIncludeDirsCallback([](const Multilib &M) {
1334 return std::vector<std::string>(
1335 {"/include", "/../../../../sysroot/usr/include"});
1336 });
1337 }
1338
1339 // CodeScape IMG toolchain starting from v1.3.
1340 MultilibSet ImgMultilibsV2;
1341 {
1342 auto BeHard = MultilibBuilder("/mips-r6-hard")
1343 .flag("-EB")
1344 .flag("-msoft-float", /*Disallow=*/true)
1345 .flag("-mmicromips", /*Disallow=*/true);
1346 auto BeSoft = MultilibBuilder("/mips-r6-soft")
1347 .flag("-EB")
1348 .flag("-msoft-float")
1349 .flag("-mmicromips", /*Disallow=*/true);
1350 auto ElHard = MultilibBuilder("/mipsel-r6-hard")
1351 .flag("-EL")
1352 .flag("-msoft-float", /*Disallow=*/true)
1353 .flag("-mmicromips", /*Disallow=*/true);
1354 auto ElSoft = MultilibBuilder("/mipsel-r6-soft")
1355 .flag("-EL")
1356 .flag("-msoft-float")
1357 .flag("-mmicromips", /*Disallow=*/true);
1358 auto BeMicroHard = MultilibBuilder("/micromips-r6-hard")
1359 .flag("-EB")
1360 .flag("-msoft-float", /*Disallow=*/true)
1361 .flag("-mmicromips");
1362 auto BeMicroSoft = MultilibBuilder("/micromips-r6-soft")
1363 .flag("-EB")
1364 .flag("-msoft-float")
1365 .flag("-mmicromips");
1366 auto ElMicroHard = MultilibBuilder("/micromipsel-r6-hard")
1367 .flag("-EL")
1368 .flag("-msoft-float", /*Disallow=*/true)
1369 .flag("-mmicromips");
1370 auto ElMicroSoft = MultilibBuilder("/micromipsel-r6-soft")
1371 .flag("-EL")
1372 .flag("-msoft-float")
1373 .flag("-mmicromips");
1374
1375 auto O32 = MultilibBuilder("/lib")
1376 .osSuffix("")
1377 .flag("-mabi=n32", /*Disallow=*/true)
1378 .flag("-mabi=n64", /*Disallow=*/true);
1379 auto N32 = MultilibBuilder("/lib32")
1380 .osSuffix("")
1381 .flag("-mabi=n32")
1382 .flag("-mabi=n64", /*Disallow=*/true);
1383 auto N64 = MultilibBuilder("/lib64")
1384 .osSuffix("")
1385 .flag("-mabi=n32", /*Disallow=*/true)
1386 .flag("-mabi=n64");
1387
1388 ImgMultilibsV2 =
1389 MultilibSetBuilder()
1390 .Either({BeHard, BeSoft, ElHard, ElSoft, BeMicroHard, BeMicroSoft,
1391 ElMicroHard, ElMicroSoft})
1392 .Either(O32, N32, N64)
1393 .makeMultilibSet()
1394 .FilterOut(NonExistent)
1395 .setIncludeDirsCallback([](const Multilib &M) {
1396 return std::vector<std::string>({"/../../../../sysroot" +
1397 M.includeSuffix() +
1398 "/../usr/include"});
1399 })
1400 .setFilePathsCallback([](const Multilib &M) {
1401 return std::vector<std::string>(
1402 {"/../../../../mips-img-linux-gnu/lib" + M.gccSuffix()});
1403 });
1404 }
1405 for (auto *Candidate : {&ImgMultilibsV1, &ImgMultilibsV2}) {
1406 if (Candidate->select(D, Flags, Result.SelectedMultilibs)) {
1407 Result.Multilibs = *Candidate;
1408 return true;
1409 }
1410 }
1411 return false;
1412}
1413
1414bool clang::driver::findMIPSMultilibs(const Driver &D,
1415 const llvm::Triple &TargetTriple,
1416 StringRef Path, const ArgList &Args,
1417 DetectedMultilibs &Result) {
1418 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1419
1420 StringRef CPUName;
1421 StringRef ABIName;
1422 tools::mips::getMipsCPUAndABI(Args, TargetTriple, CPUName, ABIName);
1423
1424 llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
1425
1426 Multilib::flags_list Flags;
1427 addMultilibFlag(TargetTriple.isMIPS32(), "-m32", Flags);
1428 addMultilibFlag(TargetTriple.isMIPS64(), "-m64", Flags);
1429 addMultilibFlag(isMips16(Args), "-mips16", Flags);
1430 addMultilibFlag(CPUName == "mips32", "-march=mips32", Flags);
1431 addMultilibFlag(CPUName == "mips32r2" || CPUName == "mips32r3" ||
1432 CPUName == "mips32r5" || CPUName == "p5600",
1433 "-march=mips32r2", Flags);
1434 addMultilibFlag(CPUName == "mips32r6", "-march=mips32r6", Flags);
1435 addMultilibFlag(CPUName == "mips64", "-march=mips64", Flags);
1436 addMultilibFlag(CPUName == "mips64r2" || CPUName == "mips64r3" ||
1437 CPUName == "mips64r5" || CPUName == "octeon" ||
1438 CPUName == "octeon+",
1439 "-march=mips64r2", Flags);
1440 addMultilibFlag(CPUName == "mips64r6" || CPUName == "i6400" ||
1441 CPUName == "i6500",
1442 "-march=mips64r6", Flags);
1443 addMultilibFlag(isMicroMips(Args), "-mmicromips", Flags);
1444 addMultilibFlag(tools::mips::isUCLibc(Args), "-muclibc", Flags);
1445 addMultilibFlag(tools::mips::isNaN2008(D, Args, TargetTriple), "-mnan=2008",
1446 Flags);
1447 addMultilibFlag(ABIName == "n32", "-mabi=n32", Flags);
1448 addMultilibFlag(ABIName == "n64", "-mabi=n64", Flags);
1449 addMultilibFlag(isSoftFloatABI(Args), "-msoft-float", Flags);
1450 addMultilibFlag(!isSoftFloatABI(Args), "-mhard-float", Flags);
1451 addMultilibFlag(isMipsEL(TargetArch), "-EL", Flags);
1452 addMultilibFlag(!isMipsEL(TargetArch), "-EB", Flags);
1453
1454 if (TargetTriple.getVendor() == llvm::Triple::MipsTechnologies &&
1455 TargetTriple.getOS() == llvm::Triple::Linux &&
1456 TargetTriple.getEnvironment() == llvm::Triple::UnknownEnvironment)
1457 return findMipsMuslMultilibs(D, Flags, NonExistent, Result);
1458
1459 if (TargetTriple.getVendor() == llvm::Triple::MipsTechnologies &&
1460 TargetTriple.getOS() == llvm::Triple::Linux &&
1461 TargetTriple.isGNUEnvironment())
1462 return findMipsMtiMultilibs(D, Flags, NonExistent, Result);
1463
1464 if (TargetTriple.getVendor() == llvm::Triple::ImaginationTechnologies &&
1465 TargetTriple.getOS() == llvm::Triple::Linux &&
1466 TargetTriple.isGNUEnvironment())
1467 return findMipsImgMultilibs(D, Flags, NonExistent, Result);
1468
1469 if (findMipsCsMultilibs(D, Flags, NonExistent, Result))
1470 return true;
1471
1472 // Fallback to the regular toolchain-tree structure.
1473 Multilib Default;
1474 Result.Multilibs.push_back(Default);
1475 Result.Multilibs.FilterOut(NonExistent);
1476
1477 if (Result.Multilibs.select(D, Flags, Result.SelectedMultilibs)) {
1478 Result.BiarchSibling = Multilib();
1479 return true;
1480 }
1481
1482 return false;
1483}
1484
1485static void findAndroidArmMultilibs(const Driver &D,
1486 const llvm::Triple &TargetTriple,
1487 StringRef Path, const ArgList &Args,
1488 DetectedMultilibs &Result) {
1489 // Find multilibs with subdirectories like armv7-a, thumb, armv7-a/thumb.
1490 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1491 MultilibBuilder ArmV7Multilib = MultilibBuilder("/armv7-a")
1492 .flag("-march=armv7-a")
1493 .flag("-mthumb", /*Disallow=*/true);
1494 MultilibBuilder ThumbMultilib = MultilibBuilder("/thumb")
1495 .flag("-march=armv7-a", /*Disallow=*/true)
1496 .flag("-mthumb");
1497 MultilibBuilder ArmV7ThumbMultilib =
1498 MultilibBuilder("/armv7-a/thumb").flag("-march=armv7-a").flag("-mthumb");
1499 MultilibBuilder DefaultMultilib =
1500 MultilibBuilder("")
1501 .flag("-march=armv7-a", /*Disallow=*/true)
1502 .flag("-mthumb", /*Disallow=*/true);
1503 MultilibSet AndroidArmMultilibs =
1504 MultilibSetBuilder()
1505 .Either(ThumbMultilib, ArmV7Multilib, ArmV7ThumbMultilib,
1506 DefaultMultilib)
1507 .makeMultilibSet()
1508 .FilterOut(NonExistent);
1509
1510 Multilib::flags_list Flags;
1511 llvm::StringRef Arch = Args.getLastArgValue(options::OPT_march_EQ);
1512 bool IsArmArch = TargetTriple.getArch() == llvm::Triple::arm;
1513 bool IsThumbArch = TargetTriple.getArch() == llvm::Triple::thumb;
1514 bool IsV7SubArch = TargetTriple.getSubArch() == llvm::Triple::ARMSubArch_v7;
1515 bool IsThumbMode = IsThumbArch ||
1516 Args.hasFlag(options::OPT_mthumb, options::OPT_mno_thumb, false) ||
1517 (IsArmArch && llvm::ARM::parseArchISA(Arch) == llvm::ARM::ISAKind::THUMB);
1518 bool IsArmV7Mode = (IsArmArch || IsThumbArch) &&
1519 (llvm::ARM::parseArchVersion(Arch) == 7 ||
1520 (IsArmArch && Arch == "" && IsV7SubArch));
1521 addMultilibFlag(IsArmV7Mode, "-march=armv7-a", Flags);
1522 addMultilibFlag(IsThumbMode, "-mthumb", Flags);
1523
1524 if (AndroidArmMultilibs.select(D, Flags, Result.SelectedMultilibs))
1525 Result.Multilibs = std::move(AndroidArmMultilibs);
1526}
1527
1528static bool findMSP430Multilibs(const Driver &D,
1529 const llvm::Triple &TargetTriple,
1530 StringRef Path, const ArgList &Args,
1531 DetectedMultilibs &Result) {
1532 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1533 MultilibBuilder WithoutExceptions =
1534 MultilibBuilder("/430").flag("-exceptions", /*Disallow=*/true);
1535 MultilibBuilder WithExceptions =
1536 MultilibBuilder("/430/exceptions").flag("-exceptions");
1537
1538 // FIXME: when clang starts to support msp430x ISA additional logic
1539 // to select between multilib must be implemented
1540 // MultilibBuilder MSP430xMultilib = MultilibBuilder("/large");
1541
1542 Result.Multilibs.push_back(WithoutExceptions.makeMultilib());
1543 Result.Multilibs.push_back(WithExceptions.makeMultilib());
1544 Result.Multilibs.FilterOut(NonExistent);
1545
1546 Multilib::flags_list Flags;
1547 addMultilibFlag(Args.hasFlag(options::OPT_fexceptions,
1548 options::OPT_fno_exceptions, false),
1549 "-exceptions", Flags);
1550 if (Result.Multilibs.select(D, Flags, Result.SelectedMultilibs))
1551 return true;
1552
1553 return false;
1554}
1555
1556static void findCSKYMultilibs(const Driver &D, const llvm::Triple &TargetTriple,
1557 StringRef Path, const ArgList &Args,
1558 DetectedMultilibs &Result) {
1559 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1560
1561 tools::csky::FloatABI TheFloatABI = tools::csky::getCSKYFloatABI(D, Args);
1562 std::optional<llvm::StringRef> Res =
1563 tools::csky::getCSKYArchName(D, Args, TargetTriple);
1564
1565 if (!Res)
1566 return;
1567 auto ARCHName = *Res;
1568
1569 Multilib::flags_list Flags;
1570 addMultilibFlag(TheFloatABI == tools::csky::FloatABI::Hard, "-hard-fp",
1571 Flags);
1572 addMultilibFlag(TheFloatABI == tools::csky::FloatABI::SoftFP, "-soft-fp",
1573 Flags);
1574 addMultilibFlag(TheFloatABI == tools::csky::FloatABI::Soft, "-soft", Flags);
1575 addMultilibFlag(ARCHName == "ck801", "-march=ck801", Flags);
1576 addMultilibFlag(ARCHName == "ck802", "-march=ck802", Flags);
1577 addMultilibFlag(ARCHName == "ck803", "-march=ck803", Flags);
1578 addMultilibFlag(ARCHName == "ck804", "-march=ck804", Flags);
1579 addMultilibFlag(ARCHName == "ck805", "-march=ck805", Flags);
1580 addMultilibFlag(ARCHName == "ck807", "-march=ck807", Flags);
1581 addMultilibFlag(ARCHName == "ck810", "-march=ck810", Flags);
1582 addMultilibFlag(ARCHName == "ck810v", "-march=ck810v", Flags);
1583 addMultilibFlag(ARCHName == "ck860", "-march=ck860", Flags);
1584 addMultilibFlag(ARCHName == "ck860v", "-march=ck860v", Flags);
1585
1586 bool isBigEndian = false;
1587 if (Arg *A = Args.getLastArg(options::OPT_mlittle_endian,
1588 options::OPT_mbig_endian))
1589 isBigEndian = !A->getOption().matches(options::OPT_mlittle_endian);
1590 addMultilibFlag(isBigEndian, "-EB", Flags);
1591
1592 auto HardFloat = MultilibBuilder("/hard-fp").flag("-hard-fp");
1593 auto SoftFpFloat = MultilibBuilder("/soft-fp").flag("-soft-fp");
1594 auto SoftFloat = MultilibBuilder("").flag("-soft");
1595 auto Arch801 = MultilibBuilder("/ck801").flag("-march=ck801");
1596 auto Arch802 = MultilibBuilder("/ck802").flag("-march=ck802");
1597 auto Arch803 = MultilibBuilder("/ck803").flag("-march=ck803");
1598 // CK804 use the same library as CK803
1599 auto Arch804 = MultilibBuilder("/ck803").flag("-march=ck804");
1600 auto Arch805 = MultilibBuilder("/ck805").flag("-march=ck805");
1601 auto Arch807 = MultilibBuilder("/ck807").flag("-march=ck807");
1602 auto Arch810 = MultilibBuilder("").flag("-march=ck810");
1603 auto Arch810v = MultilibBuilder("/ck810v").flag("-march=ck810v");
1604 auto Arch860 = MultilibBuilder("/ck860").flag("-march=ck860");
1605 auto Arch860v = MultilibBuilder("/ck860v").flag("-march=ck860v");
1606 auto BigEndian = MultilibBuilder("/big").flag("-EB");
1607
1608 MultilibSet CSKYMultilibs =
1609 MultilibSetBuilder()
1610 .Maybe(BigEndian)
1611 .Either({Arch801, Arch802, Arch803, Arch804, Arch805, Arch807,
1612 Arch810, Arch810v, Arch860, Arch860v})
1613 .Either(HardFloat, SoftFpFloat, SoftFloat)
1614 .makeMultilibSet()
1615 .FilterOut(NonExistent);
1616
1617 if (CSKYMultilibs.select(D, Flags, Result.SelectedMultilibs))
1618 Result.Multilibs = std::move(CSKYMultilibs);
1619}
1620
1621/// Extend the multi-lib re-use selection mechanism for RISC-V.
1622/// This function will try to re-use multi-lib if they are compatible.
1623/// Definition of compatible:
1624/// - ABI must be the same.
1625/// - multi-lib is a subset of current arch, e.g. multi-lib=march=rv32im
1626/// is a subset of march=rv32imc.
1627/// - march that contains atomic extension can't reuse multi-lib that
1628/// doesn't have atomic, vice versa. e.g. multi-lib=march=rv32im and
1629/// march=rv32ima are not compatible, because software and hardware
1630/// atomic operation can't work together correctly.
1631static bool
1632selectRISCVMultilib(const Driver &D, const MultilibSet &RISCVMultilibSet,
1633 const Multilib::flags_list &Flags,
1634 llvm::SmallVectorImpl<Multilib> &SelectedMultilibs) {
1635 // Try to find the perfect matching multi-lib first.
1636 if (RISCVMultilibSet.select(D, Flags, SelectedMultilibs))
1637 return true;
1638
1639 Multilib::flags_list NewFlags;
1640 std::vector<MultilibBuilder> NewMultilibs;
1641
1642 // Collect all flags and extract Arch from march
1643 StringRef Arch;
1644 for (StringRef Flag : Flags) {
1645 if (Flag.consume_front("-march=")) {
1646 Arch = Flag;
1647 continue;
1648 }
1649
1650 NewFlags.push_back(Flag.str());
1651 }
1652
1653 llvm::Expected<std::unique_ptr<llvm::RISCVISAInfo>> ParseResult =
1654 llvm::RISCVISAInfo::parseArchString(
1655 Arch, /*EnableExperimentalExtension=*/true,
1656 /*ExperimentalExtensionVersionCheck=*/false);
1657 // Ignore any error here, we assume it will be handled in another place.
1658 if (llvm::errorToBool(ParseResult.takeError()))
1659 return false;
1660
1661 auto &ISAInfo = *ParseResult;
1662
1663 addMultilibFlag(ISAInfo->getXLen() == 32, "-m32", NewFlags);
1664 addMultilibFlag(ISAInfo->getXLen() == 64, "-m64", NewFlags);
1665
1666 llvm::StringSet<> AllArchExts;
1667 // Reconstruct multi-lib list, and break march option into separated
1668 // extension. e.g. march=rv32im -> +i +m
1669 for (const auto &M : RISCVMultilibSet) {
1670 bool Skip = false;
1671
1672 MultilibBuilder NewMultilib =
1673 MultilibBuilder(M.gccSuffix(), M.osSuffix(), M.includeSuffix());
1674 for (StringRef Flag : M.flags()) {
1675 // Add back all flags except -march.
1676 if (!Flag.consume_front("-march=")) {
1677 NewMultilib.flag(Flag);
1678 continue;
1679 }
1680
1681 // Break down -march into individual extension.
1682 llvm::Expected<std::unique_ptr<llvm::RISCVISAInfo>> MLConfigParseResult =
1683 llvm::RISCVISAInfo::parseArchString(
1684 Flag, /*EnableExperimentalExtension=*/true,
1685 /*ExperimentalExtensionVersionCheck=*/false);
1686 // Ignore any error here, we assume it will handled in another place.
1687 if (llvm::errorToBool(MLConfigParseResult.takeError())) {
1688 // We might get a parsing error if rv32e in the list, we could just skip
1689 // that and process the rest of multi-lib configs.
1690 Skip = true;
1691 continue;
1692 }
1693 auto &MLConfigISAInfo = *MLConfigParseResult;
1694
1695 for (auto &MLConfigArchExt : MLConfigISAInfo->getExtensions()) {
1696 auto ExtName = MLConfigArchExt.first;
1697 NewMultilib.flag(Twine("-", ExtName).str());
1698
1699 if (AllArchExts.insert(ExtName).second) {
1700 addMultilibFlag(ISAInfo->hasExtension(ExtName),
1701 Twine("-", ExtName).str(), NewFlags);
1702 }
1703 }
1704
1705 // Check the XLEN explicitly.
1706 if (MLConfigISAInfo->getXLen() == 32) {
1707 NewMultilib.flag("-m32");
1708 NewMultilib.flag("-m64", /*Disallow*/ true);
1709 } else {
1710 NewMultilib.flag("-m32", /*Disallow*/ true);
1711 NewMultilib.flag("-m64");
1712 }
1713
1714 // Atomic extension must be explicitly checked, soft and hard atomic
1715 // operation never co-work correctly.
1716 if (!MLConfigISAInfo->hasExtension("a"))
1717 NewMultilib.flag("-a", /*Disallow*/ true);
1718 }
1719
1720 if (Skip)
1721 continue;
1722
1723 NewMultilibs.emplace_back(NewMultilib);
1724 }
1725
1726 // Build an internal used only multi-lib list, used for checking any
1727 // compatible multi-lib.
1728 MultilibSet NewRISCVMultilibs =
1729 MultilibSetBuilder().Either(NewMultilibs).makeMultilibSet();
1730
1731 if (NewRISCVMultilibs.select(D, NewFlags, SelectedMultilibs))
1732 for (const Multilib &NewSelectedM : SelectedMultilibs)
1733 for (const auto &M : RISCVMultilibSet)
1734 // Look up the corresponding multi-lib entry in original multi-lib set.
1735 if (M.gccSuffix() == NewSelectedM.gccSuffix())
1736 return true;
1737
1738 return false;
1739}
1740
1741static void findRISCVBareMetalMultilibs(const Driver &D,
1742 const llvm::Triple &TargetTriple,
1743 StringRef Path, const ArgList &Args,
1744 DetectedMultilibs &Result) {
1745 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1746 struct RiscvMultilib {
1747 StringRef march;
1748 StringRef mabi;
1749 };
1750 // currently only support the set of multilibs like riscv-gnu-toolchain does.
1751 // TODO: support MULTILIB_REUSE
1752 constexpr RiscvMultilib RISCVMultilibSet[] = {
1753 {"rv32i", "ilp32"}, {"rv32im", "ilp32"}, {"rv32iac", "ilp32"},
1754 {"rv32imac", "ilp32"}, {"rv32imafc", "ilp32f"}, {"rv64imac", "lp64"},
1755 {"rv64imafdc", "lp64d"}};
1756
1757 std::vector<MultilibBuilder> Ms;
1758 for (auto Element : RISCVMultilibSet) {
1759 // multilib path rule is ${march}/${mabi}
1760 Ms.emplace_back(
1761 MultilibBuilder(
1762 (Twine(Element.march) + "/" + Twine(Element.mabi)).str())
1763 .flag(Twine("-march=", Element.march).str())
1764 .flag(Twine("-mabi=", Element.mabi).str()));
1765 }
1766
1767 StringRef EndiannessSuffix = TargetTriple.isLittleEndian() ? "" : "be";
1768 MultilibSet RISCVMultilibs =
1769 MultilibSetBuilder()
1770 .Either(Ms)
1771 .makeMultilibSet()
1772 .FilterOut(NonExistent)
1773 .setFilePathsCallback([EndiannessSuffix](const Multilib &M) {
1774 return std::vector<std::string>(
1775 {M.gccSuffix(),
1776 "/../../../../riscv64" + EndiannessSuffix.str() +
1777 "-unknown-elf/lib" + M.gccSuffix(),
1778 "/../../../../riscv32" + EndiannessSuffix.str() +
1779 "-unknown-elf/lib" + M.gccSuffix()});
1780 });
1781
1782 Multilib::flags_list Flags;
1783 StringRef ABIName = tools::riscv::getRISCVABI(Args, TargetTriple);
1784 std::string MArch = tools::riscv::getRISCVArch(Args, TargetTriple);
1785 Flags.push_back("-march=" + MArch);
1786 Flags.push_back("-mabi=" + ABIName.str());
1787
1788 if (selectRISCVMultilib(D, RISCVMultilibs, Flags, Result.SelectedMultilibs))
1789 Result.Multilibs = std::move(RISCVMultilibs);
1790}
1791
1792static void findRISCVMultilibs(const Driver &D,
1793 const llvm::Triple &TargetTriple, StringRef Path,
1794 const ArgList &Args, DetectedMultilibs &Result) {
1795 if (TargetTriple.getOS() == llvm::Triple::UnknownOS)
1796 return findRISCVBareMetalMultilibs(D, TargetTriple, Path, Args, Result);
1797
1798 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1799 MultilibBuilder Ilp32 =
1800 MultilibBuilder("lib32/ilp32").flag("-m32").flag("-mabi=ilp32");
1801 MultilibBuilder Ilp32f =
1802 MultilibBuilder("lib32/ilp32f").flag("-m32").flag("-mabi=ilp32f");
1803 MultilibBuilder Ilp32d =
1804 MultilibBuilder("lib32/ilp32d").flag("-m32").flag("-mabi=ilp32d");
1805 MultilibBuilder Lp64 =
1806 MultilibBuilder("lib64/lp64").flag("-m64").flag("-mabi=lp64");
1807 MultilibBuilder Lp64f =
1808 MultilibBuilder("lib64/lp64f").flag("-m64").flag("-mabi=lp64f");
1809 MultilibBuilder Lp64d =
1810 MultilibBuilder("lib64/lp64d").flag("-m64").flag("-mabi=lp64d");
1811 MultilibSet RISCVMultilibs =
1812 MultilibSetBuilder()
1813 .Either({Ilp32, Ilp32f, Ilp32d, Lp64, Lp64f, Lp64d})
1814 .makeMultilibSet()
1815 .FilterOut(NonExistent);
1816
1817 Multilib::flags_list Flags;
1818 bool IsRV64 = TargetTriple.isRISCV64();
1819 StringRef ABIName = tools::riscv::getRISCVABI(Args, TargetTriple);
1820
1821 addMultilibFlag(!IsRV64, "-m32", Flags);
1822 addMultilibFlag(IsRV64, "-m64", Flags);
1823 addMultilibFlag(ABIName == "ilp32", "-mabi=ilp32", Flags);
1824 addMultilibFlag(ABIName == "ilp32f", "-mabi=ilp32f", Flags);
1825 addMultilibFlag(ABIName == "ilp32d", "-mabi=ilp32d", Flags);
1826 addMultilibFlag(ABIName == "lp64", "-mabi=lp64", Flags);
1827 addMultilibFlag(ABIName == "lp64f", "-mabi=lp64f", Flags);
1828 addMultilibFlag(ABIName == "lp64d", "-mabi=lp64d", Flags);
1829
1830 if (RISCVMultilibs.select(D, Flags, Result.SelectedMultilibs))
1831 Result.Multilibs = std::move(RISCVMultilibs);
1832}
1833
1834static bool findBiarchMultilibs(const Driver &D,
1835 const llvm::Triple &TargetTriple,
1836 StringRef Path, const ArgList &Args,
1837 bool NeedsBiarchSuffix,
1838 DetectedMultilibs &Result) {
1839 MultilibBuilder DefaultBuilder;
1840
1841 // Some versions of SUSE and Fedora on ppc64 put 32-bit libs
1842 // in what would normally be GCCInstallPath and put the 64-bit
1843 // libs in a subdirectory named 64. The simple logic we follow is that
1844 // *if* there is a subdirectory of the right name with crtbegin.o in it,
1845 // we use that. If not, and if not a biarch triple alias, we look for
1846 // crtbegin.o without the subdirectory.
1847
1848 StringRef Suff64 = "/64";
1849 // Solaris uses platform-specific suffixes instead of /64.
1850 if (TargetTriple.isOSSolaris()) {
1851 switch (TargetTriple.getArch()) {
1852 case llvm::Triple::x86:
1853 case llvm::Triple::x86_64:
1854 Suff64 = "/amd64";
1855 break;
1856 case llvm::Triple::sparc:
1857 case llvm::Triple::sparcv9:
1858 Suff64 = "/sparcv9";
1859 break;
1860 default:
1861 break;
1862 }
1863 }
1864
1865 Multilib Alt64 = MultilibBuilder()
1866 .gccSuffix(Suff64)
1867 .includeSuffix(Suff64)
1868 .flag("-m32", /*Disallow=*/true)
1869 .flag("-m64")
1870 .flag("-mx32", /*Disallow=*/true)
1871 .makeMultilib();
1872 Multilib Alt32 = MultilibBuilder()
1873 .gccSuffix("/32")
1874 .includeSuffix("/32")
1875 .flag("-m32")
1876 .flag("-m64", /*Disallow=*/true)
1877 .flag("-mx32", /*Disallow=*/true)
1878 .makeMultilib();
1879 Multilib Altx32 = MultilibBuilder()
1880 .gccSuffix("/x32")
1881 .includeSuffix("/x32")
1882 .flag("-m32", /*Disallow=*/true)
1883 .flag("-m64", /*Disallow=*/true)
1884 .flag("-mx32")
1885 .makeMultilib();
1886 Multilib Alt32sparc = MultilibBuilder()
1887 .gccSuffix("/sparcv8plus")
1888 .includeSuffix("/sparcv8plus")
1889 .flag("-m32")
1890 .flag("-m64", /*Disallow=*/true)
1891 .makeMultilib();
1892
1893 // GCC toolchain for IAMCU doesn't have crtbegin.o, so look for libgcc.a.
1894 FilterNonExistent NonExistent(
1895 Path, TargetTriple.isOSIAMCU() ? "/libgcc.a" : "/crtbegin.o", D.getVFS());
1896
1897 // Determine default multilib from: 32, 64, x32
1898 // Also handle cases such as 64 on 32, 32 on 64, etc.
1899 enum { UNKNOWN, WANT32, WANT64, WANTX32 } Want = UNKNOWN;
1900 const bool IsX32 = TargetTriple.isX32();
1901 if (TargetTriple.isArch32Bit() && !NonExistent(Alt32))
1902 Want = WANT64;
1903 if (TargetTriple.isArch32Bit() && !NonExistent(Alt32sparc))
1904 Want = WANT64;
1905 else if (TargetTriple.isArch64Bit() && IsX32 && !NonExistent(Altx32))
1906 Want = WANT64;
1907 else if (TargetTriple.isArch64Bit() && !IsX32 && !NonExistent(Alt64))
1908 Want = WANT32;
1909 else if (TargetTriple.isArch64Bit() && !NonExistent(Alt32sparc))
1910 Want = WANT64;
1911 else {
1912 if (TargetTriple.isArch32Bit())
1913 Want = NeedsBiarchSuffix ? WANT64 : WANT32;
1914 else if (IsX32)
1915 Want = NeedsBiarchSuffix ? WANT64 : WANTX32;
1916 else
1917 Want = NeedsBiarchSuffix ? WANT32 : WANT64;
1918 }
1919
1920 if (Want == WANT32)
1921 DefaultBuilder.flag("-m32")
1922 .flag("-m64", /*Disallow=*/true)
1923 .flag("-mx32", /*Disallow=*/true);
1924 else if (Want == WANT64)
1925 DefaultBuilder.flag("-m32", /*Disallow=*/true)
1926 .flag("-m64")
1927 .flag("-mx32", /*Disallow=*/true);
1928 else if (Want == WANTX32)
1929 DefaultBuilder.flag("-m32", /*Disallow=*/true)
1930 .flag("-m64", /*Disallow=*/true)
1931 .flag("-mx32");
1932 else
1933 return false;
1934
1935 Multilib Default = DefaultBuilder.makeMultilib();
1936
1937 Result.Multilibs.push_back(Default);
1938 Result.Multilibs.push_back(Alt64);
1939 Result.Multilibs.push_back(Alt32);
1940 Result.Multilibs.push_back(Altx32);
1941 Result.Multilibs.push_back(Alt32sparc);
1942
1943 Result.Multilibs.FilterOut(NonExistent);
1944
1945 Multilib::flags_list Flags;
1946 addMultilibFlag(TargetTriple.isArch64Bit() && !IsX32, "-m64", Flags);
1947 addMultilibFlag(TargetTriple.isArch32Bit(), "-m32", Flags);
1948 addMultilibFlag(TargetTriple.isArch64Bit() && IsX32, "-mx32", Flags);
1949
1950 if (!Result.Multilibs.select(D, Flags, Result.SelectedMultilibs))
1951 return false;
1952
1953 if (Result.SelectedMultilibs.back() == Alt64 ||
1954 Result.SelectedMultilibs.back() == Alt32 ||
1955 Result.SelectedMultilibs.back() == Altx32 ||
1956 Result.SelectedMultilibs.back() == Alt32sparc)
1957 Result.BiarchSibling = Default;
1958
1959 return true;
1960}
1961
1962/// Generic_GCC - A tool chain using the 'gcc' command to perform
1963/// all subcommands; this relies on gcc translating the majority of
1964/// command line options.
1965
1966/// Less-than for GCCVersion, implementing a Strict Weak Ordering.
1967bool Generic_GCC::GCCVersion::isOlderThan(int RHSMajor, int RHSMinor,
1968 int RHSPatch,
1969 StringRef RHSPatchSuffix) const {
1970 if (Major != RHSMajor)
1971 return Major < RHSMajor;
1972 if (Minor != RHSMinor) {
1973 // Note that versions without a specified minor sort higher than those with
1974 // a minor.
1975 if (RHSMinor == -1)
1976 return true;
1977 if (Minor == -1)
1978 return false;
1979 return Minor < RHSMinor;
1980 }
1981 if (Patch != RHSPatch) {
1982 // Note that versions without a specified patch sort higher than those with
1983 // a patch.
1984 if (RHSPatch == -1)
1985 return true;
1986 if (Patch == -1)
1987 return false;
1988
1989 // Otherwise just sort on the patch itself.
1990 return Patch < RHSPatch;
1991 }
1992 if (PatchSuffix != RHSPatchSuffix) {
1993 // Sort empty suffixes higher.
1994 if (RHSPatchSuffix.empty())
1995 return true;
1996 if (PatchSuffix.empty())
1997 return false;
1998
1999 // Provide a lexicographic sort to make this a total ordering.
2000 return PatchSuffix < RHSPatchSuffix;
2001 }
2002
2003 // The versions are equal.
2004 return false;
2005}
2006
2007/// Parse a GCCVersion object out of a string of text.
2008///
2009/// This is the primary means of forming GCCVersion objects.
2010/*static*/
2011Generic_GCC::GCCVersion Generic_GCC::GCCVersion::Parse(StringRef VersionText) {
2012 const GCCVersion BadVersion = {VersionText.str(), -1, -1, -1, "", "", ""};
2013 std::pair<StringRef, StringRef> First = VersionText.split('.');
2014 std::pair<StringRef, StringRef> Second = First.second.split('.');
2015
2016 StringRef MajorStr = First.first;
2017 StringRef MinorStr = Second.first;
2018 StringRef PatchStr = Second.second;
2019
2020 GCCVersion GoodVersion = {VersionText.str(), -1, -1, -1, "", "", ""};
2021
2022 // Parse version number strings such as:
2023 // 5
2024 // 4.4
2025 // 4.4-patched
2026 // 4.4.0
2027 // 4.4.x
2028 // 4.4.2-rc4
2029 // 4.4.x-patched
2030 // 10-win32
2031 // Split on '.', handle 1, 2 or 3 such segments. Each segment must contain
2032 // purely a number, except for the last one, where a non-number suffix
2033 // is stored in PatchSuffix. The third segment is allowed to not contain
2034 // a number at all.
2035
2036 auto TryParseLastNumber = [&](StringRef Segment, int &Number,
2037 std::string &OutStr) -> bool {
2038 // Look for a number prefix and parse that, and split out any trailing
2039 // string into GoodVersion.PatchSuffix.
2040
2041 if (size_t EndNumber = Segment.find_first_not_of("0123456789")) {
2042 StringRef NumberStr = Segment.slice(0, EndNumber);
2043 if (NumberStr.getAsInteger(10, Number) || Number < 0)
2044 return false;
2045 OutStr = NumberStr;
2046 GoodVersion.PatchSuffix = Segment.substr(EndNumber);
2047 return true;
2048 }
2049 return false;
2050 };
2051 auto TryParseNumber = [](StringRef Segment, int &Number) -> bool {
2052 if (Segment.getAsInteger(10, Number) || Number < 0)
2053 return false;
2054 return true;
2055 };
2056
2057 if (MinorStr.empty()) {
2058 // If no minor string, major is the last segment
2059 if (!TryParseLastNumber(MajorStr, GoodVersion.Major, GoodVersion.MajorStr))
2060 return BadVersion;
2061 return GoodVersion;
2062 }
2063
2064 if (!TryParseNumber(MajorStr, GoodVersion.Major))
2065 return BadVersion;
2066 GoodVersion.MajorStr = MajorStr;
2067
2068 if (PatchStr.empty()) {
2069 // If no patch string, minor is the last segment
2070 if (!TryParseLastNumber(MinorStr, GoodVersion.Minor, GoodVersion.MinorStr))
2071 return BadVersion;
2072 return GoodVersion;
2073 }
2074
2075 if (!TryParseNumber(MinorStr, GoodVersion.Minor))
2076 return BadVersion;
2077 GoodVersion.MinorStr = MinorStr;
2078
2079 // For the last segment, tolerate a missing number.
2080 std::string DummyStr;
2081 TryParseLastNumber(PatchStr, GoodVersion.Patch, DummyStr);
2082 return GoodVersion;
2083}
2084
2085static llvm::StringRef getGCCToolchainDir(const ArgList &Args,
2086 llvm::StringRef SysRoot) {
2087 const Arg *A = Args.getLastArg(options::OPT_gcc_toolchain);
2088 if (A)
2089 return A->getValue();
2090
2091 // If we have a SysRoot, ignore GCC_INSTALL_PREFIX.
2092 // GCC_INSTALL_PREFIX specifies the gcc installation for the default
2093 // sysroot and is likely not valid with a different sysroot.
2094 if (!SysRoot.empty())
2095 return "";
2096
2097 return GCC_INSTALL_PREFIX;
2098}
2099
2100/// Initialize a GCCInstallationDetector from the driver.
2101///
2102/// This performs all of the autodetection and sets up the various paths.
2103/// Once constructed, a GCCInstallationDetector is essentially immutable.
2104///
2105/// FIXME: We shouldn't need an explicit TargetTriple parameter here, and
2106/// should instead pull the target out of the driver. This is currently
2107/// necessary because the driver doesn't store the final version of the target
2108/// triple.
2109void Generic_GCC::GCCInstallationDetector::init(
2110 const llvm::Triple &TargetTriple, const ArgList &Args) {
2111 llvm::Triple BiarchVariantTriple = TargetTriple.isArch32Bit()
2112 ? TargetTriple.get64BitArchVariant()
2113 : TargetTriple.get32BitArchVariant();
2114 // The library directories which may contain GCC installations.
2115 SmallVector<StringRef, 4> CandidateLibDirs, CandidateBiarchLibDirs;
2116 // The compatible GCC triples for this particular architecture.
2117 SmallVector<StringRef, 16> CandidateTripleAliases;
2118 SmallVector<StringRef, 16> CandidateBiarchTripleAliases;
2119 // Add some triples that we want to check first.
2120 CandidateTripleAliases.push_back(TargetTriple.str());
2121 std::string TripleNoVendor, BiarchTripleNoVendor;
2122 if (TargetTriple.getVendor() == llvm::Triple::UnknownVendor) {
2123 StringRef OSEnv = TargetTriple.getOSAndEnvironmentName();
2124 if (TargetTriple.getEnvironment() == llvm::Triple::GNUX32)
2125 OSEnv = "linux-gnu";
2126 TripleNoVendor = (TargetTriple.getArchName().str() + '-' + OSEnv).str();
2127 CandidateTripleAliases.push_back(TripleNoVendor);
2128 if (BiarchVariantTriple.getArch() != llvm::Triple::UnknownArch) {
2129 BiarchTripleNoVendor =
2130 (BiarchVariantTriple.getArchName().str() + '-' + OSEnv).str();
2131 CandidateBiarchTripleAliases.push_back(BiarchTripleNoVendor);
2132 }
2133 }
2134
2135 CollectLibDirsAndTriples(TargetTriple, BiarchVariantTriple, CandidateLibDirs,
2136 CandidateTripleAliases, CandidateBiarchLibDirs,
2137 CandidateBiarchTripleAliases);
2138
2139 // If --gcc-install-dir= is specified, skip filesystem detection.
2140 if (const Arg *A = Args.getLastArg(options::OPT_gcc_install_dir_EQ);
2141 A && A->getValue()[0]) {
2142 StringRef InstallDir = A->getValue();
2143 if (!ScanGCCForMultilibs(TargetTriple, Args, InstallDir, false)) {
2144 D.Diag(diag::err_drv_invalid_gcc_install_dir) << InstallDir;
2145 } else {
2146 (void)InstallDir.consume_back("/");
2147 StringRef VersionText = llvm::sys::path::filename(InstallDir);
2148 StringRef TripleText =
2149 llvm::sys::path::filename(llvm::sys::path::parent_path(InstallDir));
2150
2151 SelectedInstallation.Version = GCCVersion::Parse(VersionText);
2152 SelectedInstallation.GCCTriple.setTriple(TripleText);
2153 SelectedInstallation.GCCInstallPath = std::string(InstallDir);
2154 SelectedInstallation.GCCParentLibPath =
2155 SelectedInstallation.GCCInstallPath + "/../../..";
2156 IsValid = true;
2157 }
2158 return;
2159 }
2160
2161 // If --gcc-triple is specified use this instead of trying to
2162 // auto-detect a triple.
2163 if (const Arg *A = Args.getLastArg(options::OPT_gcc_triple_EQ)) {
2164 StringRef GCCTriple = A->getValue();
2165 CandidateTripleAliases.clear();
2166 CandidateTripleAliases.push_back(GCCTriple);
2167 }
2168
2169 // Compute the set of prefixes for our search.
2170 SmallVector<std::string, 8> Prefixes;
2171 StringRef GCCToolchainDir = getGCCToolchainDir(Args, D.SysRoot);
2172 if (GCCToolchainDir != "") {
2173 if (GCCToolchainDir.back() == '/')
2174 GCCToolchainDir = GCCToolchainDir.drop_back(); // remove the /
2175
2176 Prefixes.push_back(std::string(GCCToolchainDir));
2177 } else {
2178 // If we have a SysRoot, try that first.
2179 if (!D.SysRoot.empty()) {
2180 Prefixes.push_back(D.SysRoot);
2181 AddDefaultGCCPrefixes(TargetTriple, Prefixes, D.SysRoot);
2182 }
2183
2184 // Then look for gcc installed alongside clang.
2185 Prefixes.push_back(D.Dir + "/..");
2186
2187 // Next, look for prefix(es) that correspond to distribution-supplied gcc
2188 // installations.
2189 if (D.SysRoot.empty()) {
2190 // Typically /usr.
2191 AddDefaultGCCPrefixes(TargetTriple, Prefixes, D.SysRoot);
2192 }
2193
2194 // Try to respect gcc-config on Gentoo if --gcc-toolchain is not provided.
2195 // This avoids accidentally enforcing the system GCC version when using a
2196 // custom toolchain.
2197 SmallVector<StringRef, 16> GentooTestTriples;
2198 // Try to match an exact triple as target triple first.
2199 // e.g. crossdev -S x86_64-gentoo-linux-gnu will install gcc libs for
2200 // x86_64-gentoo-linux-gnu. But "clang -target x86_64-gentoo-linux-gnu"
2201 // may pick the libraries for x86_64-pc-linux-gnu even when exact matching
2202 // triple x86_64-gentoo-linux-gnu is present.
2203 GentooTestTriples.push_back(TargetTriple.str());
2204 GentooTestTriples.append(CandidateTripleAliases.begin(),
2205 CandidateTripleAliases.end());
2206 if (ScanGentooConfigs(TargetTriple, Args, GentooTestTriples,
2207 CandidateBiarchTripleAliases))
2208 return;
2209 }
2210
2211 // Loop over the various components which exist and select the best GCC
2212 // installation available. GCC installs are ranked by version number.
2213 const GCCVersion VersionZero = GCCVersion::Parse("0.0.0");
2214 SelectedInstallation.Version = VersionZero;
2215 for (const std::string &Prefix : Prefixes) {
2216 auto &VFS = D.getVFS();
2217 if (!VFS.exists(Prefix))
2218 continue;
2219 for (StringRef Suffix : CandidateLibDirs) {
2220 const std::string LibDir = concat(Prefix, Suffix);
2221 if (!VFS.exists(LibDir))
2222 continue;
2223 // Maybe filter out <libdir>/gcc and <libdir>/gcc-cross.
2224 bool GCCDirExists = VFS.exists(LibDir + "/gcc");
2225 bool GCCCrossDirExists = VFS.exists(LibDir + "/gcc-cross");
2226 for (StringRef Candidate : CandidateTripleAliases)
2227 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate, false,
2228 GCCDirExists, GCCCrossDirExists);
2229 }
2230 for (StringRef Suffix : CandidateBiarchLibDirs) {
2231 const std::string LibDir = Prefix + Suffix.str();
2232 if (!VFS.exists(LibDir))
2233 continue;
2234 bool GCCDirExists = VFS.exists(LibDir + "/gcc");
2235 bool GCCCrossDirExists = VFS.exists(LibDir + "/gcc-cross");
2236 for (StringRef Candidate : CandidateBiarchTripleAliases)
2237 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate, true,
2238 GCCDirExists, GCCCrossDirExists);
2239 }
2240
2241 // Skip other prefixes once a GCC installation is found.
2242 if (SelectedInstallation.Version > VersionZero)
2243 break;
2244 }
2245}
2246
2247void Generic_GCC::GCCInstallationDetector::print(raw_ostream &OS) const {
2248 for (const auto &InstallPath : CandidateGCCInstallPaths)
2249 OS << "Found candidate GCC installation: " << InstallPath << "\n";
2250
2251 if (!SelectedInstallation.GCCInstallPath.empty())
2252 OS << "Selected GCC installation: " << SelectedInstallation.GCCInstallPath
2253 << "\n";
2254
2255 for (const auto &Multilib : Multilibs)
2256 OS << "Candidate multilib: " << Multilib << "\n";
2257
2258 if (Multilibs.size() != 0 ||
2259 !SelectedInstallation.SelectedMultilib.isDefault())
2260 OS << "Selected multilib: " << SelectedInstallation.SelectedMultilib
2261 << "\n";
2262}
2263
2264bool Generic_GCC::GCCInstallationDetector::getBiarchSibling(Multilib &M) const {
2265 if (BiarchSibling) {
2266 M = *BiarchSibling;
2267 return true;
2268 }
2269 return false;
2270}
2271
2272void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
2273 const llvm::Triple &TargetTriple, SmallVectorImpl<std::string> &Prefixes,
2274 StringRef SysRoot) {
2275
2276 if (TargetTriple.isOSHaiku()) {
2277 Prefixes.push_back(concat(SysRoot, "/boot/system/develop/tools"));
2278 return;
2279 }
2280
2281 if (TargetTriple.isOSSolaris()) {
2282 // Solaris is a special case.
2283 // The GCC installation is under
2284 // /usr/gcc/<major>.<minor>/lib/gcc/<triple>/<major>.<minor>.<patch>/
2285 // so we need to find those /usr/gcc/*/lib/gcc libdirs and go with
2286 // /usr/gcc/<version> as a prefix.
2287
2288 SmallVector<std::pair<GCCVersion, std::string>, 8> SolarisPrefixes;
2289 std::string PrefixDir = concat(SysRoot, "/usr/gcc");
2290 std::error_code EC;
2291 for (llvm::vfs::directory_iterator LI = D.getVFS().dir_begin(PrefixDir, EC),
2292 LE;
2293 !EC && LI != LE; LI = LI.increment(EC)) {
2294 StringRef VersionText = llvm::sys::path::filename(LI->path());
2295 GCCVersion CandidateVersion = GCCVersion::Parse(VersionText);
2296
2297 // Filter out obviously bad entries.
2298 if (CandidateVersion.Major == -1 || CandidateVersion.isOlderThan(4, 1, 1))
2299 continue;
2300
2301 std::string CandidatePrefix = PrefixDir + "/" + VersionText.str();
2302 std::string CandidateLibPath = CandidatePrefix + "/lib/gcc";
2303 if (!D.getVFS().exists(CandidateLibPath))
2304 continue;
2305
2306 SolarisPrefixes.emplace_back(
2307 std::make_pair(CandidateVersion, CandidatePrefix));
2308 }
2309 // Sort in reverse order so GCCInstallationDetector::init picks the latest.
2310 std::sort(SolarisPrefixes.rbegin(), SolarisPrefixes.rend());
2311 for (auto p : SolarisPrefixes)
2312 Prefixes.emplace_back(p.second);
2313 return;
2314 }
2315
2316 // For Linux, if --sysroot is not specified, look for RHEL/CentOS devtoolsets
2317 // and gcc-toolsets.
2318 if (SysRoot.empty() && TargetTriple.getOS() == llvm::Triple::Linux &&
2319 D.getVFS().exists("/opt/rh")) {
2320 // TODO: We may want to remove this, since the functionality
2321 // can be achieved using config files.
2322 Prefixes.push_back("/opt/rh/gcc-toolset-13/root/usr");
2323 Prefixes.push_back("/opt/rh/gcc-toolset-12/root/usr");
2324 Prefixes.push_back("/opt/rh/gcc-toolset-11/root/usr");
2325 Prefixes.push_back("/opt/rh/gcc-toolset-10/root/usr");
2326 Prefixes.push_back("/opt/rh/devtoolset-12/root/usr");
2327 Prefixes.push_back("/opt/rh/devtoolset-11/root/usr");
2328 Prefixes.push_back("/opt/rh/devtoolset-10/root/usr");
2329 Prefixes.push_back("/opt/rh/devtoolset-9/root/usr");
2330 Prefixes.push_back("/opt/rh/devtoolset-8/root/usr");
2331 Prefixes.push_back("/opt/rh/devtoolset-7/root/usr");
2332 Prefixes.push_back("/opt/rh/devtoolset-6/root/usr");
2333 Prefixes.push_back("/opt/rh/devtoolset-4/root/usr");
2334 Prefixes.push_back("/opt/rh/devtoolset-3/root/usr");
2335 Prefixes.push_back("/opt/rh/devtoolset-2/root/usr");
2336 }
2337
2338 // Fall back to /usr which is used by most non-Solaris systems.
2339 Prefixes.push_back(concat(SysRoot, "/usr"));
2340}
2341
2342/*static*/ void Generic_GCC::GCCInstallationDetector::CollectLibDirsAndTriples(
2343 const llvm::Triple &TargetTriple, const llvm::Triple &BiarchTriple,
2344 SmallVectorImpl<StringRef> &LibDirs,
2345 SmallVectorImpl<StringRef> &TripleAliases,
2346 SmallVectorImpl<StringRef> &BiarchLibDirs,
2347 SmallVectorImpl<StringRef> &BiarchTripleAliases) {
2348 // Declare a bunch of static data sets that we'll select between below. These
2349 // are specifically designed to always refer to string literals to avoid any
2350 // lifetime or initialization issues.
2351 //
2352 // The *Triples variables hard code some triples so that, for example,
2353 // --target=aarch64 (incomplete triple) can detect lib/aarch64-linux-gnu.
2354 // They are not needed when the user has correct LLVM_DEFAULT_TARGET_TRIPLE
2355 // and always uses the full --target (e.g. --target=aarch64-linux-gnu). The
2356 // lists should shrink over time. Please don't add more elements to *Triples.
2357 static const char *const AArch64LibDirs[] = {"/lib64", "/lib"};
2358 static const char *const AArch64Triples[] = {
2359 "aarch64-none-linux-gnu", "aarch64-redhat-linux", "aarch64-suse-linux"};
2360 static const char *const AArch64beLibDirs[] = {"/lib"};
2361 static const char *const AArch64beTriples[] = {"aarch64_be-none-linux-gnu"};
2362
2363 static const char *const ARMLibDirs[] = {"/lib"};
2364 static const char *const ARMTriples[] = {"arm-linux-gnueabi"};
2365 static const char *const ARMHFTriples[] = {"arm-linux-gnueabihf",
2366 "armv7hl-redhat-linux-gnueabi",
2367 "armv6hl-suse-linux-gnueabi",
2368 "armv7hl-suse-linux-gnueabi"};
2369 static const char *const ARMebLibDirs[] = {"/lib"};
2370 static const char *const ARMebTriples[] = {"armeb-linux-gnueabi"};
2371 static const char *const ARMebHFTriples[] = {
2372 "armeb-linux-gnueabihf", "armebv7hl-redhat-linux-gnueabi"};
2373
2374 static const char *const AVRLibDirs[] = {"/lib"};
2375 static const char *const AVRTriples[] = {"avr"};
2376
2377 static const char *const CSKYLibDirs[] = {"/lib"};
2378 static const char *const CSKYTriples[] = {
2379 "csky-linux-gnuabiv2", "csky-linux-uclibcabiv2", "csky-elf-noneabiv2"};
2380
2381 static const char *const X86_64LibDirs[] = {"/lib64", "/lib"};
2382 static const char *const X86_64Triples[] = {
2383 "x86_64-linux-gnu", "x86_64-unknown-linux-gnu",
2384 "x86_64-pc-linux-gnu", "x86_64-redhat-linux6E",
2385 "x86_64-redhat-linux", "x86_64-suse-linux",
2386 "x86_64-manbo-linux-gnu", "x86_64-slackware-linux",
2387 "x86_64-unknown-linux", "x86_64-amazon-linux"};
2388 static const char *const X32Triples[] = {"x86_64-linux-gnux32",
2389 "x86_64-pc-linux-gnux32"};
2390 static const char *const X32LibDirs[] = {"/libx32", "/lib"};
2391 static const char *const X86LibDirs[] = {"/lib32", "/lib"};
2392 static const char *const X86Triples[] = {
2393 "i586-linux-gnu", "i686-linux-gnu", "i686-pc-linux-gnu",
2394 "i386-redhat-linux6E", "i686-redhat-linux", "i386-redhat-linux",
2395 "i586-suse-linux", "i686-montavista-linux",
2396 };
2397
2398 static const char *const LoongArch32LibDirs[] = {"/lib32", "/lib"};
2399 static const char *const LoongArch32Triples[] = {
2400 "loongarch32-linux-gnu", "loongarch32-unknown-linux-gnu",
2401 "loongarch32-linux-gnuf32", "loongarch32-unknown-linux-gnuf32",
2402 "loongarch32-linux-gnusf", "loongarch32-unknown-linux-gnusf"};
2403
2404 static const char *const LoongArch64LibDirs[] = {"/lib64", "/lib"};
2405 static const char *const LoongArch64Triples[] = {
2406 "loongarch64-linux-gnu", "loongarch64-unknown-linux-gnu"};
2407
2408 static const char *const M68kLibDirs[] = {"/lib"};
2409 static const char *const M68kTriples[] = {"m68k-unknown-linux-gnu",
2410 "m68k-suse-linux"};
2411
2412 static const char *const MIPSLibDirs[] = {"/libo32", "/lib"};
2413 static const char *const MIPSTriples[] = {
2414 "mips-linux-gnu", "mips-mti-linux", "mips-mti-linux-gnu",
2415 "mips-img-linux-gnu", "mipsisa32r6-linux-gnu"};
2416 static const char *const MIPSELLibDirs[] = {"/libo32", "/lib"};
2417 static const char *const MIPSELTriples[] = {"mipsel-linux-gnu",
2418 "mips-img-linux-gnu"};
2419
2420 static const char *const MIPS64LibDirs[] = {"/lib64", "/lib"};
2421 static const char *const MIPS64Triples[] = {
2422 "mips-mti-linux-gnu", "mips-img-linux-gnu", "mips64-linux-gnuabi64",
2423 "mipsisa64r6-linux-gnu", "mipsisa64r6-linux-gnuabi64"};
2424 static const char *const MIPS64ELLibDirs[] = {"/lib64", "/lib"};
2425 static const char *const MIPS64ELTriples[] = {
2426 "mips-mti-linux-gnu", "mips-img-linux-gnu", "mips64el-linux-gnuabi64",
2427 "mipsisa64r6el-linux-gnu", "mipsisa64r6el-linux-gnuabi64"};
2428
2429 static const char *const MIPSN32LibDirs[] = {"/lib32"};
2430 static const char *const MIPSN32Triples[] = {"mips64-linux-gnuabin32",
2431 "mipsisa64r6-linux-gnuabin32"};
2432 static const char *const MIPSN32ELLibDirs[] = {"/lib32"};
2433 static const char *const MIPSN32ELTriples[] = {
2434 "mips64el-linux-gnuabin32", "mipsisa64r6el-linux-gnuabin32"};
2435
2436 static const char *const MSP430LibDirs[] = {"/lib"};
2437 static const char *const MSP430Triples[] = {"msp430-elf"};
2438
2439 static const char *const PPCLibDirs[] = {"/lib32", "/lib"};
2440 static const char *const PPCTriples[] = {
2441 "powerpc-unknown-linux-gnu",
2442 // On 32-bit PowerPC systems running SUSE Linux, gcc is configured as a
2443 // 64-bit compiler which defaults to "-m32", hence "powerpc64-suse-linux".
2444 "powerpc64-suse-linux", "powerpc-montavista-linuxspe"};
2445 static const char *const PPCLELibDirs[] = {"/lib32", "/lib"};
2446 static const char *const PPCLETriples[] = {"powerpcle-unknown-linux-gnu",
2447 "powerpcle-linux-musl"};
2448
2449 static const char *const PPC64LibDirs[] = {"/lib64", "/lib"};
2450 static const char *const PPC64Triples[] = {"powerpc64-unknown-linux-gnu",
2451 "powerpc64-suse-linux",
2452 "ppc64-redhat-linux"};
2453 static const char *const PPC64LELibDirs[] = {"/lib64", "/lib"};
2454 static const char *const PPC64LETriples[] = {
2455 "powerpc64le-unknown-linux-gnu", "powerpc64le-none-linux-gnu",
2456 "powerpc64le-suse-linux", "ppc64le-redhat-linux"};
2457
2458 static const char *const RISCV32LibDirs[] = {"/lib32", "/lib"};
2459 static const char *const RISCV32Triples[] = {"riscv32-unknown-linux-gnu",
2460 "riscv32-unknown-elf"};
2461 static const char *const RISCV64LibDirs[] = {"/lib64", "/lib"};
2462 static const char *const RISCV64Triples[] = {"riscv64-unknown-linux-gnu",
2463 "riscv64-unknown-elf"};
2464
2465 static const char *const RISCV32beLibDirs[] = {"/lib32", "/lib"};
2466 static const char *const RISCV32beTriples[] = {"riscv32be-unknown-linux-gnu",
2467 "riscv32be-linux-gnu",
2468 "riscv32be-unknown-elf"};
2469 static const char *const RISCV64beLibDirs[] = {"/lib64", "/lib"};
2470 static const char *const RISCV64beTriples[] = {"riscv64be-unknown-linux-gnu",
2471 "riscv64be-linux-gnu",
2472 "riscv64be-unknown-elf"};
2473
2474 static const char *const SPARCv8LibDirs[] = {"/lib32", "/lib"};
2475 static const char *const SPARCv8Triples[] = {"sparc-linux-gnu",
2476 "sparcv8-linux-gnu"};
2477 static const char *const SPARCv9LibDirs[] = {"/lib64", "/lib"};
2478 static const char *const SPARCv9Triples[] = {"sparc64-linux-gnu",
2479 "sparcv9-linux-gnu"};
2480
2481 static const char *const SystemZLibDirs[] = {"/lib64", "/lib"};
2482 static const char *const SystemZTriples[] = {
2483 "s390x-unknown-linux-gnu", "s390x-ibm-linux-gnu", "s390x-suse-linux",
2484 "s390x-redhat-linux"};
2485
2486 using std::begin;
2487 using std::end;
2488
2489 if (TargetTriple.isOSSolaris()) {
2490 static const char *const SolarisLibDirs[] = {"/lib"};
2491 static const char *const SolarisSparcV8Triples[] = {
2492 "sparc-sun-solaris2.11"};
2493 static const char *const SolarisSparcV9Triples[] = {
2494 "sparcv9-sun-solaris2.11"};
2495 static const char *const SolarisX86Triples[] = {"i386-pc-solaris2.11"};
2496 static const char *const SolarisX86_64Triples[] = {"x86_64-pc-solaris2.11"};
2497 LibDirs.append(begin(SolarisLibDirs), end(SolarisLibDirs));
2498 BiarchLibDirs.append(begin(SolarisLibDirs), end(SolarisLibDirs));
2499 switch (TargetTriple.getArch()) {
2500 case llvm::Triple::x86:
2501 TripleAliases.append(begin(SolarisX86Triples), end(SolarisX86Triples));
2502 BiarchTripleAliases.append(begin(SolarisX86_64Triples),
2503 end(SolarisX86_64Triples));
2504 break;
2505 case llvm::Triple::x86_64:
2506 TripleAliases.append(begin(SolarisX86_64Triples),
2507 end(SolarisX86_64Triples));
2508 BiarchTripleAliases.append(begin(SolarisX86Triples),
2509 end(SolarisX86Triples));
2510 break;
2511 case llvm::Triple::sparc:
2512 TripleAliases.append(begin(SolarisSparcV8Triples),
2513 end(SolarisSparcV8Triples));
2514 BiarchTripleAliases.append(begin(SolarisSparcV9Triples),
2515 end(SolarisSparcV9Triples));
2516 break;
2517 case llvm::Triple::sparcv9:
2518 TripleAliases.append(begin(SolarisSparcV9Triples),
2519 end(SolarisSparcV9Triples));
2520 BiarchTripleAliases.append(begin(SolarisSparcV8Triples),
2521 end(SolarisSparcV8Triples));
2522 break;
2523 default:
2524 break;
2525 }
2526 return;
2527 }
2528
2529 // Android targets should not use GNU/Linux tools or libraries.
2530 if (TargetTriple.isAndroid()) {
2531 static const char *const AArch64AndroidTriples[] = {
2532 "aarch64-linux-android"};
2533 static const char *const ARMAndroidTriples[] = {"arm-linux-androideabi"};
2534 static const char *const X86AndroidTriples[] = {"i686-linux-android"};
2535 static const char *const X86_64AndroidTriples[] = {"x86_64-linux-android"};
2536
2537 switch (TargetTriple.getArch()) {
2538 case llvm::Triple::aarch64:
2539 LibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
2540 TripleAliases.append(begin(AArch64AndroidTriples),
2541 end(AArch64AndroidTriples));
2542 break;
2543 case llvm::Triple::arm:
2544 case llvm::Triple::thumb:
2545 LibDirs.append(begin(ARMLibDirs), end(ARMLibDirs));
2546 TripleAliases.append(begin(ARMAndroidTriples), end(ARMAndroidTriples));
2547 break;
2548 case llvm::Triple::x86_64:
2549 LibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2550 TripleAliases.append(begin(X86_64AndroidTriples),
2551 end(X86_64AndroidTriples));
2552 BiarchLibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2553 BiarchTripleAliases.append(begin(X86AndroidTriples),
2554 end(X86AndroidTriples));
2555 break;
2556 case llvm::Triple::x86:
2557 LibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2558 TripleAliases.append(begin(X86AndroidTriples), end(X86AndroidTriples));
2559 BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2560 BiarchTripleAliases.append(begin(X86_64AndroidTriples),
2561 end(X86_64AndroidTriples));
2562 break;
2563 default:
2564 break;
2565 }
2566
2567 return;
2568 }
2569
2570 if (TargetTriple.isOSHurd()) {
2571 switch (TargetTriple.getArch()) {
2572 case llvm::Triple::aarch64:
2573 LibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
2574 TripleAliases.push_back("aarch64-gnu");
2575 break;
2576 case llvm::Triple::riscv64:
2577 LibDirs.append(begin(RISCV64LibDirs), end(RISCV64LibDirs));
2578 TripleAliases.push_back("riscv64-gnu");
2579 break;
2580 case llvm::Triple::x86_64:
2581 LibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2582 TripleAliases.push_back("x86_64-gnu");
2583 break;
2584 case llvm::Triple::x86:
2585 LibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2586 TripleAliases.push_back("i686-gnu");
2587 break;
2588 default:
2589 break;
2590 }
2591
2592 return;
2593 }
2594
2595 if (TargetTriple.isWindowsCygwinEnvironment()) {
2596 LibDirs.push_back("/lib");
2597 switch (TargetTriple.getArch()) {
2598 case llvm::Triple::x86_64:
2599 TripleAliases.append({"x86_64-pc-cygwin", "x86_64-pc-msys"});
2600 break;
2601 case llvm::Triple::x86:
2602 TripleAliases.append({"i686-pc-cygwin", "i686-pc-msys"});
2603 break;
2604 default:
2605 break;
2606 }
2607
2608 return;
2609 }
2610
2611 switch (TargetTriple.getArch()) {
2612 case llvm::Triple::aarch64:
2613 LibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
2614 TripleAliases.append(begin(AArch64Triples), end(AArch64Triples));
2615 BiarchLibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
2616 BiarchTripleAliases.append(begin(AArch64Triples), end(AArch64Triples));
2617 break;
2618 case llvm::Triple::aarch64_be:
2619 LibDirs.append(begin(AArch64beLibDirs), end(AArch64beLibDirs));
2620 TripleAliases.append(begin(AArch64beTriples), end(AArch64beTriples));
2621 BiarchLibDirs.append(begin(AArch64beLibDirs), end(AArch64beLibDirs));
2622 BiarchTripleAliases.append(begin(AArch64beTriples), end(AArch64beTriples));
2623 break;
2624 case llvm::Triple::arm:
2625 case llvm::Triple::thumb:
2626 LibDirs.append(begin(ARMLibDirs), end(ARMLibDirs));
2627 if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF ||
2628 TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHFT64 ||
2629 TargetTriple.getEnvironment() == llvm::Triple::MuslEABIHF ||
2630 TargetTriple.getEnvironment() == llvm::Triple::EABIHF) {
2631 TripleAliases.append(begin(ARMHFTriples), end(ARMHFTriples));
2632 } else {
2633 TripleAliases.append(begin(ARMTriples), end(ARMTriples));
2634 }
2635 break;
2636 case llvm::Triple::armeb:
2637 case llvm::Triple::thumbeb:
2638 LibDirs.append(begin(ARMebLibDirs), end(ARMebLibDirs));
2639 if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF ||
2640 TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHFT64 ||
2641 TargetTriple.getEnvironment() == llvm::Triple::MuslEABIHF ||
2642 TargetTriple.getEnvironment() == llvm::Triple::EABIHF) {
2643 TripleAliases.append(begin(ARMebHFTriples), end(ARMebHFTriples));
2644 } else {
2645 TripleAliases.append(begin(ARMebTriples), end(ARMebTriples));
2646 }
2647 break;
2648 case llvm::Triple::avr:
2649 LibDirs.append(begin(AVRLibDirs), end(AVRLibDirs));
2650 TripleAliases.append(begin(AVRTriples), end(AVRTriples));
2651 break;
2652 case llvm::Triple::csky:
2653 LibDirs.append(begin(CSKYLibDirs), end(CSKYLibDirs));
2654 TripleAliases.append(begin(CSKYTriples), end(CSKYTriples));
2655 break;
2656 case llvm::Triple::x86_64:
2657 if (TargetTriple.isX32()) {
2658 LibDirs.append(begin(X32LibDirs), end(X32LibDirs));
2659 TripleAliases.append(begin(X32Triples), end(X32Triples));
2660 BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2661 BiarchTripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
2662 } else {
2663 LibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2664 TripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
2665 BiarchLibDirs.append(begin(X32LibDirs), end(X32LibDirs));
2666 BiarchTripleAliases.append(begin(X32Triples), end(X32Triples));
2667 }
2668 BiarchLibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2669 BiarchTripleAliases.append(begin(X86Triples), end(X86Triples));
2670 break;
2671 case llvm::Triple::x86:
2672 LibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2673 // MCU toolchain is 32 bit only and its triple alias is TargetTriple
2674 // itself, which will be appended below.
2675 if (!TargetTriple.isOSIAMCU()) {
2676 TripleAliases.append(begin(X86Triples), end(X86Triples));
2677 BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2678 BiarchTripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
2679 BiarchLibDirs.append(begin(X32LibDirs), end(X32LibDirs));
2680 BiarchTripleAliases.append(begin(X32Triples), end(X32Triples));
2681 }
2682 break;
2683 case llvm::Triple::loongarch32:
2684 LibDirs.append(begin(LoongArch32LibDirs), end(LoongArch32LibDirs));
2685 TripleAliases.append(begin(LoongArch32Triples), end(LoongArch32Triples));
2686 break;
2687 case llvm::Triple::loongarch64:
2688 LibDirs.append(begin(LoongArch64LibDirs), end(LoongArch64LibDirs));
2689 TripleAliases.append(begin(LoongArch64Triples), end(LoongArch64Triples));
2690 break;
2691 case llvm::Triple::m68k:
2692 LibDirs.append(begin(M68kLibDirs), end(M68kLibDirs));
2693 TripleAliases.append(begin(M68kTriples), end(M68kTriples));
2694 break;
2695 case llvm::Triple::mips:
2696 LibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs));
2697 TripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2698 BiarchLibDirs.append(begin(MIPS64LibDirs), end(MIPS64LibDirs));
2699 BiarchTripleAliases.append(begin(MIPS64Triples), end(MIPS64Triples));
2700 BiarchLibDirs.append(begin(MIPSN32LibDirs), end(MIPSN32LibDirs));
2701 BiarchTripleAliases.append(begin(MIPSN32Triples), end(MIPSN32Triples));
2702 break;
2703 case llvm::Triple::mipsel:
2704 LibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs));
2705 TripleAliases.append(begin(MIPSELTriples), end(MIPSELTriples));
2706 TripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2707 BiarchLibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs));
2708 BiarchTripleAliases.append(begin(MIPS64ELTriples), end(MIPS64ELTriples));
2709 BiarchLibDirs.append(begin(MIPSN32ELLibDirs), end(MIPSN32ELLibDirs));
2710 BiarchTripleAliases.append(begin(MIPSN32ELTriples), end(MIPSN32ELTriples));
2711 break;
2712 case llvm::Triple::mips64:
2713 LibDirs.append(begin(MIPS64LibDirs), end(MIPS64LibDirs));
2714 TripleAliases.append(begin(MIPS64Triples), end(MIPS64Triples));
2715 BiarchLibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs));
2716 BiarchTripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2717 BiarchLibDirs.append(begin(MIPSN32LibDirs), end(MIPSN32LibDirs));
2718 BiarchTripleAliases.append(begin(MIPSN32Triples), end(MIPSN32Triples));
2719 break;
2720 case llvm::Triple::mips64el:
2721 LibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs));
2722 TripleAliases.append(begin(MIPS64ELTriples), end(MIPS64ELTriples));
2723 BiarchLibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs));
2724 BiarchTripleAliases.append(begin(MIPSELTriples), end(MIPSELTriples));
2725 BiarchLibDirs.append(begin(MIPSN32ELLibDirs), end(MIPSN32ELLibDirs));
2726 BiarchTripleAliases.append(begin(MIPSN32ELTriples), end(MIPSN32ELTriples));
2727 BiarchTripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2728 break;
2729 case llvm::Triple::msp430:
2730 LibDirs.append(begin(MSP430LibDirs), end(MSP430LibDirs));
2731 TripleAliases.append(begin(MSP430Triples), end(MSP430Triples));
2732 break;
2733 case llvm::Triple::ppc:
2734 LibDirs.append(begin(PPCLibDirs), end(PPCLibDirs));
2735 TripleAliases.append(begin(PPCTriples), end(PPCTriples));
2736 BiarchLibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs));
2737 BiarchTripleAliases.append(begin(PPC64Triples), end(PPC64Triples));
2738 break;
2739 case llvm::Triple::ppcle:
2740 LibDirs.append(begin(PPCLELibDirs), end(PPCLELibDirs));
2741 TripleAliases.append(begin(PPCLETriples), end(PPCLETriples));
2742 BiarchLibDirs.append(begin(PPC64LELibDirs), end(PPC64LELibDirs));
2743 BiarchTripleAliases.append(begin(PPC64LETriples), end(PPC64LETriples));
2744 break;
2745 case llvm::Triple::ppc64:
2746 LibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs));
2747 TripleAliases.append(begin(PPC64Triples), end(PPC64Triples));
2748 BiarchLibDirs.append(begin(PPCLibDirs), end(PPCLibDirs));
2749 BiarchTripleAliases.append(begin(PPCTriples), end(PPCTriples));
2750 break;
2751 case llvm::Triple::ppc64le:
2752 LibDirs.append(begin(PPC64LELibDirs), end(PPC64LELibDirs));
2753 TripleAliases.append(begin(PPC64LETriples), end(PPC64LETriples));
2754 BiarchLibDirs.append(begin(PPCLELibDirs), end(PPCLELibDirs));
2755 BiarchTripleAliases.append(begin(PPCLETriples), end(PPCLETriples));
2756 break;
2757 case llvm::Triple::riscv32:
2758 LibDirs.append(begin(RISCV32LibDirs), end(RISCV32LibDirs));
2759 TripleAliases.append(begin(RISCV32Triples), end(RISCV32Triples));
2760 BiarchLibDirs.append(begin(RISCV64LibDirs), end(RISCV64LibDirs));
2761 BiarchTripleAliases.append(begin(RISCV64Triples), end(RISCV64Triples));
2762 break;
2763 case llvm::Triple::riscv64:
2764 LibDirs.append(begin(RISCV64LibDirs), end(RISCV64LibDirs));
2765 TripleAliases.append(begin(RISCV64Triples), end(RISCV64Triples));
2766 BiarchLibDirs.append(begin(RISCV32LibDirs), end(RISCV32LibDirs));
2767 BiarchTripleAliases.append(begin(RISCV32Triples), end(RISCV32Triples));
2768 break;
2769 case llvm::Triple::riscv32be:
2770 LibDirs.append(begin(RISCV32beLibDirs), end(RISCV32beLibDirs));
2771 TripleAliases.append(begin(RISCV32beTriples), end(RISCV32beTriples));
2772 BiarchLibDirs.append(begin(RISCV64beLibDirs), end(RISCV64beLibDirs));
2773 BiarchTripleAliases.append(begin(RISCV64beTriples), end(RISCV64beTriples));
2774 break;
2775 case llvm::Triple::riscv64be:
2776 LibDirs.append(begin(RISCV64beLibDirs), end(RISCV64beLibDirs));
2777 TripleAliases.append(begin(RISCV64beTriples), end(RISCV64beTriples));
2778 BiarchLibDirs.append(begin(RISCV32beLibDirs), end(RISCV32beLibDirs));
2779 BiarchTripleAliases.append(begin(RISCV32beTriples), end(RISCV32beTriples));
2780 break;
2781 case llvm::Triple::sparc:
2782 case llvm::Triple::sparcel:
2783 LibDirs.append(begin(SPARCv8LibDirs), end(SPARCv8LibDirs));
2784 TripleAliases.append(begin(SPARCv8Triples), end(SPARCv8Triples));
2785 BiarchLibDirs.append(begin(SPARCv9LibDirs), end(SPARCv9LibDirs));
2786 BiarchTripleAliases.append(begin(SPARCv9Triples), end(SPARCv9Triples));
2787 break;
2788 case llvm::Triple::sparcv9:
2789 LibDirs.append(begin(SPARCv9LibDirs), end(SPARCv9LibDirs));
2790 TripleAliases.append(begin(SPARCv9Triples), end(SPARCv9Triples));
2791 BiarchLibDirs.append(begin(SPARCv8LibDirs), end(SPARCv8LibDirs));
2792 BiarchTripleAliases.append(begin(SPARCv8Triples), end(SPARCv8Triples));
2793 break;
2794 case llvm::Triple::systemz:
2795 LibDirs.append(begin(SystemZLibDirs), end(SystemZLibDirs));
2796 TripleAliases.append(begin(SystemZTriples), end(SystemZTriples));
2797 break;
2798 default:
2799 // By default, just rely on the standard lib directories and the original
2800 // triple.
2801 break;
2802 }
2803
2804 // Also include the multiarch variant if it's different.
2805 if (TargetTriple.str() != BiarchTriple.str())
2806 BiarchTripleAliases.push_back(BiarchTriple.str());
2807}
2808
2809bool Generic_GCC::GCCInstallationDetector::ScanGCCForMultilibs(
2810 const llvm::Triple &TargetTriple, const ArgList &Args,
2811 StringRef Path, bool NeedsBiarchSuffix) {
2812 llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
2813 DetectedMultilibs Detected;
2814
2815 // Android standalone toolchain could have multilibs for ARM and Thumb.
2816 // Debian mips multilibs behave more like the rest of the biarch ones,
2817 // so handle them there
2818 if (isArmOrThumbArch(TargetArch) && TargetTriple.isAndroid()) {
2819 // It should also work without multilibs in a simplified toolchain.
2820 findAndroidArmMultilibs(D, TargetTriple, Path, Args, Detected);
2821 } else if (TargetTriple.isCSKY()) {
2822 findCSKYMultilibs(D, TargetTriple, Path, Args, Detected);
2823 } else if (TargetTriple.isMIPS()) {
2824 if (!findMIPSMultilibs(D, TargetTriple, Path, Args, Detected))
2825 return false;
2826 } else if (TargetTriple.isRISCV()) {
2827 findRISCVMultilibs(D, TargetTriple, Path, Args, Detected);
2828 } else if (isMSP430(TargetArch)) {
2829 findMSP430Multilibs(D, TargetTriple, Path, Args, Detected);
2830 } else if (TargetArch == llvm::Triple::avr) {
2831 // AVR has no multilibs.
2832 } else if (!findBiarchMultilibs(D, TargetTriple, Path, Args,
2833 NeedsBiarchSuffix, Detected)) {
2834 return false;
2835 }
2836
2837 Multilibs = Detected.Multilibs;
2838 SelectedInstallation.SelectedMultilib =
2839 Detected.SelectedMultilibs.empty() ? Multilib()
2840 : Detected.SelectedMultilibs.back();
2841 BiarchSibling = Detected.BiarchSibling;
2842
2843 return true;
2844}
2845
2846bool Generic_GCC::GCCInstallationDetector::SelectGCCInstallationDirectory(
2847 const SmallVector<Generic_GCC::GCCInstallCandidate, 3> &Installations,
2848 const ArgList &Args,
2849 Generic_GCC::GCCInstallCandidate &SelectedInstallation) const {
2850 if (Installations.empty())
2851 return false;
2852
2853 SelectedInstallation =
2854 *max_element(Installations, [](const auto &Max, const auto &I) {
2855 return I.Version > Max.Version;
2856 });
2857
2858 // FIXME Start selecting installation with libstdc++ in clang 22,
2859 // using the current way of selecting the installation as a fallback
2860 // only. For now, warn if the installation with libstdc++ differs
2861 // from SelectedInstallation.
2862 const GCCInstallCandidate *InstallWithIncludes = nullptr;
2863 for (const auto &I : Installations) {
2864 if ((!InstallWithIncludes || I.Version > InstallWithIncludes->Version) &&
2865 GCCInstallationHasLibStdcxxIncludePaths(I, Args))
2866 InstallWithIncludes = &I;
2867 }
2868
2869 if (InstallWithIncludes && SelectedInstallation.GCCInstallPath !=
2870 InstallWithIncludes->GCCInstallPath)
2871 D.Diag(diag::warn_drv_gcc_install_dir_libstdcxx)
2872 << InstallWithIncludes->GCCInstallPath
2873 << SelectedInstallation.GCCInstallPath;
2874
2875 // TODO Warn if SelectedInstallation does not contain libstdc++ includes
2876 // although compiler flags indicate that it is required (C++ compilation,
2877 // libstdc++ not explicitly disabled).
2878
2879 return true;
2880}
2881
2882void Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple(
2883 const llvm::Triple &TargetTriple, const ArgList &Args,
2884 const std::string &LibDir, StringRef CandidateTriple,
2885 bool NeedsBiarchSuffix, bool GCCDirExists, bool GCCCrossDirExists) {
2886 // Locations relative to the system lib directory where GCC's triple-specific
2887 // directories might reside.
2888 struct GCCLibSuffix {
2889 // Path from system lib directory to GCC triple-specific directory.
2890 std::string LibSuffix;
2891 // Path from GCC triple-specific directory back to system lib directory.
2892 // This is one '..' component per component in LibSuffix.
2893 StringRef ReversePath;
2894 // Whether this library suffix is relevant for the triple.
2895 bool Active;
2896 } Suffixes[] = {
2897 // This is the normal place.
2898 {"gcc/" + CandidateTriple.str(), "../..", GCCDirExists},
2899
2900 // Debian puts cross-compilers in gcc-cross.
2901 {"gcc-cross/" + CandidateTriple.str(), "../..", GCCCrossDirExists},
2902
2903 // The Freescale PPC SDK has the gcc libraries in
2904 // <sysroot>/usr/lib/<triple>/x.y.z so have a look there as well. Only do
2905 // this on Freescale triples, though, since some systems put a *lot* of
2906 // files in that location, not just GCC installation data.
2907 {CandidateTriple.str(), "..",
2908 TargetTriple.getVendor() == llvm::Triple::Freescale ||
2909 TargetTriple.getVendor() == llvm::Triple::OpenEmbedded}};
2910
2911 SmallVector<GCCInstallCandidate, 3> Installations;
2912 for (auto &Suffix : Suffixes) {
2913 if (!Suffix.Active)
2914 continue;
2915
2916 StringRef LibSuffix = Suffix.LibSuffix;
2917 std::error_code EC;
2918 for (llvm::vfs::directory_iterator
2919 LI = D.getVFS().dir_begin(LibDir + "/" + LibSuffix, EC),
2920 LE;
2921 !EC && LI != LE; LI = LI.increment(EC)) {
2922 StringRef VersionText = llvm::sys::path::filename(LI->path());
2923 GCCVersion CandidateVersion = GCCVersion::Parse(VersionText);
2924 if (CandidateVersion.Major != -1) // Filter obviously bad entries.
2925 if (!CandidateGCCInstallPaths.insert(std::string(LI->path())).second)
2926 continue; // Saw this path before; no need to look at it again.
2927 if (CandidateVersion.isOlderThan(4, 1, 1))
2928 continue;
2929 if (CandidateVersion <= SelectedInstallation.Version && IsValid)
2930 continue;
2931
2932 if (!ScanGCCForMultilibs(TargetTriple, Args, LI->path(),
2933 NeedsBiarchSuffix))
2934 continue;
2935
2936 GCCInstallCandidate Installation;
2937 Installation.Version = CandidateVersion;
2938 Installation.GCCTriple.setTriple(CandidateTriple);
2939 // FIXME: We hack together the directory name here instead of
2940 // using LI to ensure stable path separators across Windows and
2941 // Linux.
2942 Installation.GCCInstallPath =
2943 (LibDir + "/" + LibSuffix + "/" + VersionText).str();
2944 Installation.GCCParentLibPath =
2945 (Installation.GCCInstallPath + "/../" + Suffix.ReversePath).str();
2946 Installation.SelectedMultilib = getMultilib();
2947
2948 Installations.push_back(Installation);
2949 }
2950 }
2951
2952 IsValid |=
2953 SelectGCCInstallationDirectory(Installations, Args, SelectedInstallation);
2954}
2955
2956bool Generic_GCC::GCCInstallationDetector::ScanGentooConfigs(
2957 const llvm::Triple &TargetTriple, const ArgList &Args,
2958 const SmallVectorImpl<StringRef> &CandidateTriples,
2959 const SmallVectorImpl<StringRef> &CandidateBiarchTriples) {
2960 if (!D.getVFS().exists(concat(D.SysRoot, GentooConfigDir)))
2961 return false;
2962
2963 for (StringRef CandidateTriple : CandidateTriples) {
2964 if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple))
2965 return true;
2966 }
2967
2968 for (StringRef CandidateTriple : CandidateBiarchTriples) {
2969 if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple, true))
2970 return true;
2971 }
2972 return false;
2973}
2974
2975bool Generic_GCC::GCCInstallationDetector::ScanGentooGccConfig(
2976 const llvm::Triple &TargetTriple, const ArgList &Args,
2977 StringRef CandidateTriple, bool NeedsBiarchSuffix) {
2978 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> File =
2979 D.getVFS().getBufferForFile(concat(D.SysRoot, GentooConfigDir,
2980 "/config-" + CandidateTriple.str()));
2981 if (File) {
2982 SmallVector<StringRef, 2> Lines;
2983 File.get()->getBuffer().split(Lines, "\n");
2984 for (StringRef Line : Lines) {
2985 Line = Line.trim();
2986 // CURRENT=triple-version
2987 if (!Line.consume_front("CURRENT="))
2988 continue;
2989 // Process the config file pointed to by CURRENT.
2990 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> ConfigFile =
2991 D.getVFS().getBufferForFile(
2992 concat(D.SysRoot, GentooConfigDir, "/" + Line));
2993 std::pair<StringRef, StringRef> ActiveVersion = Line.rsplit('-');
2994 // List of paths to scan for libraries.
2995 SmallVector<StringRef, 4> GentooScanPaths;
2996 // Scan the Config file to find installed GCC libraries path.
2997 // Typical content of the GCC config file:
2998 // LDPATH="/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.x:/usr/lib/gcc/
2999 // (continued from previous line) x86_64-pc-linux-gnu/4.9.x/32"
3000 // MANPATH="/usr/share/gcc-data/x86_64-pc-linux-gnu/4.9.x/man"
3001 // INFOPATH="/usr/share/gcc-data/x86_64-pc-linux-gnu/4.9.x/info"
3002 // STDCXX_INCDIR="/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.x/include/g++-v4"
3003 // We are looking for the paths listed in LDPATH=... .
3004 if (ConfigFile) {
3005 SmallVector<StringRef, 2> ConfigLines;
3006 ConfigFile.get()->getBuffer().split(ConfigLines, "\n");
3007 for (StringRef ConfLine : ConfigLines) {
3008 ConfLine = ConfLine.trim();
3009 if (ConfLine.consume_front("LDPATH=")) {
3010 // Drop '"' from front and back if present.
3011 ConfLine.consume_back("\"");
3012 ConfLine.consume_front("\"");
3013 // Get all paths sperated by ':'
3014 ConfLine.split(GentooScanPaths, ':', -1, /*AllowEmpty*/ false);
3015 }
3016 }
3017 }
3018 // Test the path based on the version in /etc/env.d/gcc/config-{tuple}.
3019 std::string basePath = "/usr/lib/gcc/" + ActiveVersion.first.str() + "/"
3020 + ActiveVersion.second.str();
3021 GentooScanPaths.push_back(StringRef(basePath));
3022
3023 // Scan all paths for GCC libraries.
3024 for (const auto &GentooScanPath : GentooScanPaths) {
3025 std::string GentooPath = concat(D.SysRoot, GentooScanPath);
3026 if (D.getVFS().exists(GentooPath + "/crtbegin.o")) {
3027 if (!ScanGCCForMultilibs(TargetTriple, Args, GentooPath,
3028 NeedsBiarchSuffix))
3029 continue;
3030
3031 SelectedInstallation.Version =
3032 GCCVersion::Parse(ActiveVersion.second);
3033 SelectedInstallation.GCCInstallPath = GentooPath;
3034 SelectedInstallation.GCCParentLibPath =
3035 GentooPath + std::string("/../../..");
3036 SelectedInstallation.GCCTriple.setTriple(ActiveVersion.first);
3037 IsValid = true;
3038 return true;
3039 }
3040 }
3041 }
3042 }
3043
3044 return false;
3045}
3046
3047Generic_GCC::Generic_GCC(const Driver &D, const llvm::Triple &Triple,
3048 const ArgList &Args)
3049 : ToolChain(D, Triple, Args), GCCInstallation(D),
3050 CudaInstallation(D, Triple, Args), RocmInstallation(D, Triple, Args),
3051 SYCLInstallation(D, Triple, Args) {
3052 getProgramPaths().push_back(getDriver().Dir);
3053}
3054
3055Generic_GCC::~Generic_GCC() {}
3056
3057Tool *Generic_GCC::getTool(Action::ActionClass AC) const {
3058 switch (AC) {
3059 case Action::PreprocessJobClass:
3060 if (!Preprocess)
3061 Preprocess.reset(new clang::driver::tools::gcc::Preprocessor(*this));
3062 return Preprocess.get();
3063 case Action::CompileJobClass:
3064 if (!Compile)
3065 Compile.reset(new tools::gcc::Compiler(*this));
3066 return Compile.get();
3067 default:
3068 return ToolChain::getTool(AC);
3069 }
3070}
3071
3072Tool *Generic_GCC::buildAssembler() const {
3073 return new tools::gnutools::Assembler(*this);
3074}
3075
3076Tool *Generic_GCC::buildLinker() const { return new tools::gcc::Linker(*this); }
3077
3078void Generic_GCC::printVerboseInfo(raw_ostream &OS) const {
3079 // Print the information about how we detected the GCC installation.
3080 GCCInstallation.print(OS);
3081 CudaInstallation->print(OS);
3082 RocmInstallation->print(OS);
3083}
3084
3085ToolChain::UnwindTableLevel
3086Generic_GCC::getDefaultUnwindTableLevel(const ArgList &Args) const {
3087 switch (getArch()) {
3088 case llvm::Triple::aarch64:
3089 case llvm::Triple::aarch64_be:
3090 case llvm::Triple::amdgpu:
3091 case llvm::Triple::ppc:
3092 case llvm::Triple::ppcle:
3093 case llvm::Triple::ppc64:
3094 case llvm::Triple::ppc64le:
3095 case llvm::Triple::riscv32:
3096 case llvm::Triple::riscv64:
3097 case llvm::Triple::riscv32be:
3098 case llvm::Triple::riscv64be:
3099 case llvm::Triple::x86:
3100 case llvm::Triple::x86_64:
3101 return UnwindTableLevel::Asynchronous;
3102 default:
3103 return UnwindTableLevel::None;
3104 }
3105}
3106
3107bool Generic_GCC::isPICDefault() const {
3108 switch (getArch()) {
3109 case llvm::Triple::x86_64:
3110 return getTriple().isOSWindows();
3111 case llvm::Triple::mips64:
3112 case llvm::Triple::mips64el:
3113 return true;
3114 default:
3115 return false;
3116 }
3117}
3118
3119bool Generic_GCC::isPIEDefault(const llvm::opt::ArgList &Args) const {
3120 return false;
3121}
3122
3123bool Generic_GCC::isPICDefaultForced() const {
3124 return getArch() == llvm::Triple::x86_64 && getTriple().isOSWindows();
3125}
3126
3127bool Generic_GCC::IsIntegratedAssemblerDefault() const {
3128 switch (getTriple().getArch()) {
3129 case llvm::Triple::nvptx:
3130 case llvm::Triple::nvptx64:
3131 case llvm::Triple::xcore:
3132 return false;
3133 default:
3134 return true;
3135 }
3136}
3137
3138void Generic_GCC::PushPPaths(ToolChain::path_list &PPaths) {
3139 // Cross-compiling binutils and GCC installations (vanilla and openSUSE at
3140 // least) put various tools in a triple-prefixed directory off of the parent
3141 // of the GCC installation. We use the GCC triple here to ensure that we end
3142 // up with tools that support the same amount of cross compiling as the
3143 // detected GCC installation. For example, if we find a GCC installation
3144 // targeting x86_64, but it is a bi-arch GCC installation, it can also be
3145 // used to target i386.
3146 if (GCCInstallation.isValid()) {
3147 PPaths.push_back(Twine(GCCInstallation.getParentLibPath() + "/../" +
3148 GCCInstallation.getTriple().str() + "/bin")
3149 .str());
3150 }
3151}
3152
3153void Generic_GCC::AddMultilibPaths(const Driver &D,
3154 const std::string &SysRoot,
3155 const std::string &OSLibDir,
3156 const std::string &MultiarchTriple,
3157 path_list &Paths) {
3158 // Add the multilib suffixed paths where they are available.
3159 if (GCCInstallation.isValid()) {
3160 const Multilib &GCCMultilib = GCCInstallation.getMultilib();
3161 const llvm::Triple &GCCTriple = GCCInstallation.getTriple();
3162 const std::string &LibPath =
3163 std::string(GCCInstallation.getParentLibPath());
3164
3165 // Sourcery CodeBench MIPS toolchain holds some libraries under
3166 // a biarch-like suffix of the GCC installation.
3167 if (const auto &PathsCallback =
3168 GCCInstallation.getMultilibs().filePathsCallback())
3169 for (const auto &Path : PathsCallback(GCCMultilib))
3170 addPathIfExists(D, GCCInstallation.getInstallPath() + Path, Paths);
3171
3172 // Add lib/gcc/$triple/$version, with an optional /multilib suffix.
3173 addPathIfExists(
3174 D, GCCInstallation.getInstallPath() + GCCMultilib.gccSuffix(), Paths);
3175
3176 // Add lib/gcc/$triple/$libdir
3177 // For GCC built with --enable-version-specific-runtime-libs.
3178 addPathIfExists(D, GCCInstallation.getInstallPath() + "/../" + OSLibDir,
3179 Paths);
3180
3181 // GCC cross compiling toolchains will install target libraries which ship
3182 // as part of the toolchain under <prefix>/<triple>/<libdir> rather than as
3183 // any part of the GCC installation in
3184 // <prefix>/<libdir>/gcc/<triple>/<version>. This decision is somewhat
3185 // debatable, but is the reality today. We need to search this tree even
3186 // when we have a sysroot somewhere else. It is the responsibility of
3187 // whomever is doing the cross build targeting a sysroot using a GCC
3188 // installation that is *not* within the system root to ensure two things:
3189 //
3190 // 1) Any DSOs that are linked in from this tree or from the install path
3191 // above must be present on the system root and found via an
3192 // appropriate rpath.
3193 // 2) There must not be libraries installed into
3194 // <prefix>/<triple>/<libdir> unless they should be preferred over
3195 // those within the system root.
3196 //
3197 // Note that this matches the GCC behavior. See the below comment for where
3198 // Clang diverges from GCC's behavior.
3199 addPathIfExists(D,
3200 LibPath + "/../" + GCCTriple.str() + "/lib/../" + OSLibDir +
3201 GCCMultilib.osSuffix(),
3202 Paths);
3203
3204 // If the GCC installation we found is inside of the sysroot, we want to
3205 // prefer libraries installed in the parent prefix of the GCC installation.
3206 // It is important to *not* use these paths when the GCC installation is
3207 // outside of the system root as that can pick up unintended libraries.
3208 // This usually happens when there is an external cross compiler on the
3209 // host system, and a more minimal sysroot available that is the target of
3210 // the cross. Note that GCC does include some of these directories in some
3211 // configurations but this seems somewhere between questionable and simply
3212 // a bug.
3213 if (StringRef(LibPath).starts_with(SysRoot))
3214 addPathIfExists(D, LibPath + "/../" + OSLibDir, Paths);
3215 }
3216}
3217
3218void Generic_GCC::AddMultiarchPaths(const Driver &D,
3219 const std::string &SysRoot,
3220 const std::string &OSLibDir,
3221 path_list &Paths) {
3222 if (GCCInstallation.isValid()) {
3223 const std::string &LibPath =
3224 std::string(GCCInstallation.getParentLibPath());
3225 const llvm::Triple &GCCTriple = GCCInstallation.getTriple();
3226 const Multilib &Multilib = GCCInstallation.getMultilib();
3227 addPathIfExists(
3228 D, LibPath + "/../" + GCCTriple.str() + "/lib" + Multilib.osSuffix(),
3229 Paths);
3230 }
3231}
3232
3233void Generic_GCC::AddMultilibIncludeArgs(const ArgList &DriverArgs,
3234 ArgStringList &CC1Args) const {
3235 // Add include directories specific to the selected multilib set and multilib.
3236 if (!GCCInstallation.isValid())
3237 return;
3238 // gcc TOOL_INCLUDE_DIR.
3239 const llvm::Triple &GCCTriple = GCCInstallation.getTriple();
3240 std::string LibPath(GCCInstallation.getParentLibPath());
3241 ToolChain::addSystemInclude(DriverArgs, CC1Args,
3242 Twine(LibPath) + "/../" + GCCTriple.str() +
3243 "/include");
3244
3245 const auto &Callback = GCCInstallation.getMultilibs().includeDirsCallback();
3246 if (Callback) {
3247 for (const auto &Path : Callback(GCCInstallation.getMultilib()))
3248 addExternCSystemIncludeIfExists(DriverArgs, CC1Args,
3249 GCCInstallation.getInstallPath() + Path);
3250 }
3251}
3252
3253void Generic_GCC::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
3254 ArgStringList &CC1Args) const {
3255 if (DriverArgs.hasArg(options::OPT_nostdinc, options::OPT_nostdincxx,
3256 options::OPT_nostdlibinc))
3257 return;
3258
3259 switch (GetCXXStdlibType(DriverArgs)) {
3260 case ToolChain::CST_Libcxx:
3261 addLibCxxIncludePaths(DriverArgs, CC1Args);
3262 break;
3263
3264 case ToolChain::CST_Libstdcxx:
3265 addLibStdCxxIncludePaths(DriverArgs, CC1Args);
3266 break;
3267 }
3268}
3269
3270void Generic_GCC::addSYCLIncludeArgs(const ArgList &DriverArgs,
3271 ArgStringList &CC1Args) const {
3272 SYCLInstallation->addSYCLIncludeArgs(DriverArgs, CC1Args);
3273}
3274
3275void
3276Generic_GCC::addLibCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
3277 llvm::opt::ArgStringList &CC1Args) const {
3278 const Driver &D = getDriver();
3279 std::string SysRoot = computeSysRoot();
3280 if (SysRoot.empty())
3281 SysRoot = llvm::sys::path::get_separator();
3282
3283 auto AddIncludePath = [&](StringRef Path, bool TargetDirRequired = false) {
3284 std::string Version = detectLibcxxVersion(Path);
3285 if (Version.empty())
3286 return false;
3287
3288 // First add the per-target include path if it exists.
3289 bool TargetDirExists = false;
3290 std::optional<std::string> TargetIncludeDir = getTargetSubDirPath(Path);
3291 if (TargetIncludeDir) {
3292 SmallString<128> TargetDir(*TargetIncludeDir);
3293 llvm::sys::path::append(TargetDir, "c++", Version);
3294 if (D.getVFS().exists(TargetDir)) {
3295 addSystemInclude(DriverArgs, CC1Args, TargetDir);
3296 TargetDirExists = true;
3297 }
3298 }
3299 if (TargetDirRequired && !TargetDirExists)
3300 return false;
3301
3302 // Second add the generic one.
3303 SmallString<128> GenericDir(Path);
3304 llvm::sys::path::append(GenericDir, "c++", Version);
3305 addSystemInclude(DriverArgs, CC1Args, GenericDir);
3306 return true;
3307 };
3308
3309 // Android only uses the libc++ headers installed alongside the toolchain if
3310 // they contain an Android-specific target include path, otherwise they're
3311 // incompatible with the NDK libraries.
3312 SmallString<128> DriverIncludeDir(getDriver().Dir);
3313 llvm::sys::path::append(DriverIncludeDir, "..", "include");
3314 if (AddIncludePath(DriverIncludeDir,
3315 /*TargetDirRequired=*/getTriple().isAndroid()))
3316 return;
3317 // If this is a development, non-installed, clang, libcxx will
3318 // not be found at ../include/c++ but it likely to be found at
3319 // one of the following two locations:
3320 SmallString<128> UsrLocalIncludeDir(SysRoot);
3321 llvm::sys::path::append(UsrLocalIncludeDir, "usr", "local", "include");
3322 if (AddIncludePath(UsrLocalIncludeDir))
3323 return;
3324 SmallString<128> UsrIncludeDir(SysRoot);
3325 llvm::sys::path::append(UsrIncludeDir, "usr", "include");
3326 if (AddIncludePath(UsrIncludeDir))
3327 return;
3328}
3329
3330static bool addLibStdCXXIncludePaths(llvm::vfs::FileSystem &vfs,
3331 Twine IncludeDir, StringRef Triple,
3332 Twine IncludeSuffix,
3333 const llvm::opt::ArgList &DriverArgs,
3334 llvm::opt::ArgStringList &CC1Args,
3335 bool DetectDebian = false) {
3336
3337 if (!vfs.exists(IncludeDir))
3338 return false;
3339
3340 // Debian native gcc uses g++-multiarch-incdir.diff which uses
3341 // include/x86_64-linux-gnu/c++/10$IncludeSuffix instead of
3342 // include/c++/10/x86_64-linux-gnu$IncludeSuffix.
3343 std::string Dir = IncludeDir.str();
3344 StringRef Include =
3345 llvm::sys::path::parent_path(llvm::sys::path::parent_path(Dir));
3346 std::string Path =
3347 (Include + "/" + Triple + Dir.substr(Include.size()) + IncludeSuffix)
3348 .str();
3349 if (DetectDebian && !vfs.exists(Path))
3350 return false;
3351
3352 // GPLUSPLUS_INCLUDE_DIR
3353 ToolChain::addSystemInclude(DriverArgs, CC1Args, IncludeDir);
3354 // GPLUSPLUS_TOOL_INCLUDE_DIR. If Triple is not empty, add a target-dependent
3355 // include directory.
3356 if (DetectDebian)
3357 ToolChain::addSystemInclude(DriverArgs, CC1Args, Path);
3358 else if (!Triple.empty())
3359 ToolChain::addSystemInclude(DriverArgs, CC1Args,
3360 IncludeDir + "/" + Triple + IncludeSuffix);
3361 // GPLUSPLUS_BACKWARD_INCLUDE_DIR
3362 ToolChain::addSystemInclude(DriverArgs, CC1Args, IncludeDir + "/backward");
3363 return true;
3364}
3365
3366bool Generic_GCC::addLibStdCXXIncludePaths(Twine IncludeDir, StringRef Triple,
3367 Twine IncludeSuffix,
3368 const llvm::opt::ArgList &DriverArgs,
3369 llvm::opt::ArgStringList &CC1Args,
3370 bool DetectDebian) const {
3371 return ::addLibStdCXXIncludePaths(getVFS(), IncludeDir, Triple, IncludeSuffix,
3372 DriverArgs, CC1Args, DetectDebian);
3373}
3374
3375bool Generic_GCC::GCCInstallCandidate::addGCCLibStdCxxIncludePaths(
3376 llvm::vfs::FileSystem &vfs, const llvm::opt::ArgList &DriverArgs,
3377 llvm::opt::ArgStringList &CC1Args, StringRef DebianMultiarch) const {
3378
3379 // By default, look for the C++ headers in an include directory adjacent to
3380 // the lib directory of the GCC installation. Note that this is expect to be
3381 // equivalent to '/usr/include/c++/X.Y' in almost all cases.
3382 StringRef LibDir = getParentLibPath();
3383 StringRef InstallDir = getInstallPath();
3384 StringRef TripleStr = getTriple().str();
3385 const Multilib &Multilib = getMultilib();
3386 const GCCVersion &Version = getVersion();
3387
3388 // Try /../$triple/include/c++/$version (gcc --print-multiarch is not empty).
3389 if (::addLibStdCXXIncludePaths(
3390 vfs,
3391 LibDir.str() + "/../" + TripleStr + "/include/c++/" + Version.Text,
3392 TripleStr, Multilib.includeSuffix(), DriverArgs, CC1Args))
3393 return true;
3394
3395 // Try /gcc/$triple/$version/include/c++/ (gcc --print-multiarch is not
3396 // empty). Like above but for GCC built with
3397 // --enable-version-specific-runtime-libs.
3398 if (::addLibStdCXXIncludePaths(vfs,
3399 LibDir.str() + "/gcc/" + TripleStr + "/" +
3400 Version.Text + "/include/c++/",
3401 TripleStr, Multilib.includeSuffix(),
3402 DriverArgs, CC1Args))
3403 return true;
3404
3405 // Detect Debian g++-multiarch-incdir.diff.
3406 if (::addLibStdCXXIncludePaths(
3407 vfs, LibDir.str() + "/../include/c++/" + Version.Text,
3408 DebianMultiarch, Multilib.includeSuffix(), DriverArgs, CC1Args,
3409 /*Debian=*/true))
3410 return true;
3411
3412 // Try /../include/c++/$version (gcc --print-multiarch is empty).
3413 if (::addLibStdCXXIncludePaths(
3414 vfs, LibDir.str() + "/../include/c++/" + Version.Text, TripleStr,
3415 Multilib.includeSuffix(), DriverArgs, CC1Args))
3416 return true;
3417
3418 // Otherwise, fall back on a bunch of options which don't use multiarch
3419 // layouts for simplicity.
3420 const std::string LibStdCXXIncludePathCandidates[] = {
3421 // Gentoo is weird and places its headers inside the GCC install,
3422 // so if the first attempt to find the headers fails, try these patterns.
3423 InstallDir.str() + "/include/g++-v" + Version.Text,
3424 InstallDir.str() + "/include/g++-v" + Version.MajorStr + "." +
3425 Version.MinorStr,
3426 InstallDir.str() + "/include/g++-v" + Version.MajorStr,
3427 };
3428
3429 for (const auto &IncludePath : LibStdCXXIncludePathCandidates) {
3430 if (::addLibStdCXXIncludePaths(vfs, IncludePath, TripleStr,
3431 Multilib.includeSuffix(), DriverArgs,
3432 CC1Args))
3433 return true;
3434 }
3435 return false;
3436}
3437
3438bool Generic_GCC::GCCInstallationDetector::
3439 GCCInstallationHasLibStdcxxIncludePaths(
3440 const GCCInstallCandidate &GCCInstallation,
3441 const llvm::opt::ArgList &DriverArgs) const {
3442 StringRef DebianMultiarch =
3443 TripleToDebianMultiarch(GCCInstallation.getTriple());
3444
3445 // The following function checks for libstdc++ include paths and
3446 // adds them to the provided argument list. Here we just need the
3447 // check.
3448 llvm::opt::ArgStringList dummyCC1Args;
3449 return GCCInstallation.addGCCLibStdCxxIncludePaths(
3450 D.getVFS(), DriverArgs, dummyCC1Args, DebianMultiarch);
3451}
3452
3453bool Generic_GCC::addGCCLibStdCxxIncludePaths(
3454 const llvm::opt::ArgList &DriverArgs,
3455 llvm::opt::ArgStringList &CC1Args) const {
3456 assert(GCCInstallation.isValid());
3457
3458 // Detect Debian g++-multiarch-incdir.diff.
3459 StringRef DebianMultiarch =
3460 GCCInstallation.TripleToDebianMultiarch(GCCInstallation.getTriple());
3461
3462 return GCCInstallation.getSelectedInstallation().addGCCLibStdCxxIncludePaths(
3463 getVFS(), DriverArgs, CC1Args, DebianMultiarch);
3464}
3465
3466void
3467Generic_GCC::addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
3468 llvm::opt::ArgStringList &CC1Args) const {
3469 if (!GCCInstallation.isValid())
3470 return;
3471
3472 GCCInstallation.getSelectedInstallation().addGCCLibStdCxxIncludePaths(
3473 getVFS(), DriverArgs, CC1Args, GCCInstallation.getTriple().str());
3474}
3475
3476llvm::opt::DerivedArgList *
3477Generic_GCC::TranslateArgs(const llvm::opt::DerivedArgList &Args, BoundArch BA,
3478 Action::OffloadKind DeviceOffloadKind) const {
3479 if (DeviceOffloadKind == Action::OFK_None ||
3480 DeviceOffloadKind == Action::OFK_Host)
3481 return nullptr;
3482
3483 DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs());
3484
3485 // Filter all the arguments we don't care passing to the offloading
3486 // toolchain as they can mess up with the creation of a shared library.
3487 const llvm::DenseSet<unsigned> OpenMPFiltered{
3488 options::OPT_shared, options::OPT_dynamic, options::OPT_static,
3489 options::OPT_fPIE, options::OPT_fno_PIE, options::OPT_fpie,
3490 options::OPT_fno_pie};
3491 for (auto *A : Args)
3492 if (DeviceOffloadKind != Action::OFK_OpenMP ||
3493 !OpenMPFiltered.contains(A->getOption().getID()))
3494 DAL->append(A);
3495
3496 // Request a shared library for CPU offloading. Given that these options
3497 // are decided implicitly, they do not refer to any base argument.
3498 const OptTable &Opts = getDriver().getOpts();
3499 if (DeviceOffloadKind == Action::OFK_OpenMP) {
3500 DAL->AddFlagArg(/*BaseArg=*/nullptr, Opts.getOption(options::OPT_shared));
3501 DAL->AddFlagArg(/*BaseArg=*/nullptr, Opts.getOption(options::OPT_fPIC));
3502 }
3503
3504 // Add the bound architecture to the arguments list if present.
3505 if (!BA.empty()) {
3506 options::ID Opt = getTriple().isARM() || getTriple().isPPC() ||
3507 getTriple().isAArch64() || getTriple().isAMDGPU()
3508 ? options::OPT_mcpu_EQ
3509 : options::OPT_march_EQ;
3510 DAL->eraseArg(Opt);
3511 DAL->AddJoinedArg(nullptr, Opts.getOption(Opt), BA.ArchName);
3512 }
3513
3514 return DAL;
3515}
3516
3517void Generic_ELF::anchor() {}
3518
3519void Generic_ELF::addClangTargetOptions(const ArgList &DriverArgs,
3520 ArgStringList &CC1Args, BoundArch BA,
3521 Action::OffloadKind) const {
3522 if (!DriverArgs.hasFlag(options::OPT_fuse_init_array,
3523 options::OPT_fno_use_init_array, true))
3524 CC1Args.push_back("-fno-use-init-array");
3525}
findRISCVMultilibs
static bool findRISCVMultilibs(const Driver &D, const llvm::Triple &TargetTriple, const ArgList &Args, DetectedMultilibs &Result)
Definition BareMetal.cpp:58
Suffixes
static constexpr CPUSuffix Suffixes[]
Definition Hexagon.cpp:264
findCSKYMultilibs
static void findCSKYMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, DetectedMultilibs &Result)
Definition Gnu.cpp:1556
findAndroidArmMultilibs
static void findAndroidArmMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, DetectedMultilibs &Result)
Definition Gnu.cpp:1485
findMipsCsMultilibs
static bool findMipsCsMultilibs(const Driver &D, const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition Gnu.cpp:980
isArmOrThumbArch
static bool isArmOrThumbArch(llvm::Triple::ArchType Arch)
Definition Gnu.cpp:958
normalizeCPUNamesForAssembler
static void normalizeCPUNamesForAssembler(const ArgList &Args, ArgStringList &CmdArgs)
Definition Gnu.cpp:54
findBiarchMultilibs
static bool findBiarchMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, bool NeedsBiarchSuffix, DetectedMultilibs &Result)
Definition Gnu.cpp:1834
isMips16
static bool isMips16(const ArgList &Args)
Definition Gnu.cpp:966
getGCCToolchainDir
static llvm::StringRef getGCCToolchainDir(const ArgList &Args, llvm::StringRef SysRoot)
Definition Gnu.cpp:2085
findMSP430Multilibs
static bool findMSP430Multilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, DetectedMultilibs &Result)
Definition Gnu.cpp:1528
getStatic
static bool getStatic(const ArgList &Args)
Definition Gnu.cpp:222
isMipsEL
static bool isMipsEL(llvm::Triple::ArchType Arch)
Definition Gnu.cpp:962
findMipsMuslMultilibs
static bool findMipsMuslMultilibs(const Driver &D, const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition Gnu.cpp:1085
findRISCVBareMetalMultilibs
static void findRISCVBareMetalMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, DetectedMultilibs &Result)
Definition Gnu.cpp:1741
selectRISCVMultilib
static bool selectRISCVMultilib(const Driver &D, const MultilibSet &RISCVMultilibSet, const Multilib::flags_list &Flags, llvm::SmallVectorImpl< Multilib > &SelectedMultilibs)
Extend the multi-lib re-use selection mechanism for RISC-V.
Definition Gnu.cpp:1632
isMSP430
static bool isMSP430(llvm::Triple::ArchType Arch)
Definition Gnu.cpp:976
isSoftFloatABI
static bool isSoftFloatABI(const ArgList &Args)
Definition Gnu.cpp:947
addLibStdCXXIncludePaths
static bool addLibStdCXXIncludePaths(llvm::vfs::FileSystem &vfs, Twine IncludeDir, StringRef Triple, Twine IncludeSuffix, const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, bool DetectDebian=false)
Definition Gnu.cpp:3330
findMipsImgMultilibs
static bool findMipsImgMultilibs(const Driver &D, const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition Gnu.cpp:1307
forwardToGCC
static bool forwardToGCC(const Option &O)
Definition Gnu.cpp:44
findMipsMtiMultilibs
static bool findMipsMtiMultilibs(const Driver &D, const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition Gnu.cpp:1120
isMicroMips
static bool isMicroMips(const ArgList &Args)
Definition Gnu.cpp:971
Result
Result
Implement __builtin_bit_cast and related operations.
Definition InterpBuiltinBitCast.cpp:38
getTriple
static StringRef getTriple(const Command &Job)
Definition ModulesDriver.cpp:336
clang::driver::Action::getType
types::ID getType() const
Definition Action.h:153
clang::driver::Action::isHostOffloading
bool isHostOffloading(unsigned int OKind) const
Check if this action have any offload kinds.
Definition Action.h:223
clang::driver::Compilation
Compilation - A set of tasks to perform for a single driver invocation.
Definition Compilation.h:46
clang::driver::Driver
Driver - Encapsulate logic for constructing compilation processes from a set of gcc-driver-like comma...
Definition Driver.h:96
clang::driver::Driver::SysRoot
std::string SysRoot
sysroot, if present
Definition Driver.h:196
clang::driver::Driver::DyldPrefix
std::string DyldPrefix
Dynamic loader prefix, if present.
Definition Driver.h:199
clang::driver::Driver::Diag
DiagnosticBuilder Diag(unsigned DiagID) const
Definition Driver.h:160
clang::driver::Driver::getOpts
const llvm::opt::OptTable & getOpts() const
Definition Driver.h:409
clang::driver::Driver::getVFS
llvm::vfs::FileSystem & getVFS() const
Definition Driver.h:413
clang::driver::Driver::IsFlangMode
bool IsFlangMode() const
Whether the driver should invoke flang for fortran inputs.
Definition Driver.h:236
clang::driver::Driver::getCCCGenericGCCName
const std::string & getCCCGenericGCCName() const
Name to use when invoking gcc/g++.
Definition Driver.h:403
clang::driver::Driver::CCCIsCXX
bool CCCIsCXX() const
Whether the driver should follow g++ like behavior.
Definition Driver.h:223
clang::driver::InputInfo
InputInfo - Wrapper for information about an input source.
Definition InputInfo.h:22
clang::driver::InputInfo::getFilename
const char * getFilename() const
Definition InputInfo.h:83
clang::driver::InputInfo::isNothing
bool isNothing() const
Definition InputInfo.h:74
clang::driver::InputInfo::isFilename
bool isFilename() const
Definition InputInfo.h:75
clang::driver::MultilibBuilder
This corresponds to a single GCC multilib, or a segment of one controlled by a command line flag.
Definition MultilibBuilder.h:22
clang::driver::MultilibBuilder::flag
MultilibBuilder & flag(StringRef Flag, bool Disallow=false)
Add a flag to the flags list Flag must be a flag accepted by the driver.
Definition MultilibBuilder.cpp:86
clang::driver::MultilibBuilder::gccSuffix
const std::string & gccSuffix() const
Get the detected GCC installation path suffix for the multi-arch target variant.
Definition MultilibBuilder.h:41
clang::driver::MultilibBuilder::osSuffix
const std::string & osSuffix() const
Get the detected os path suffix for the multi-arch target variant.
Definition MultilibBuilder.h:52
clang::driver::MultilibSetBuilder
This class can be used to create a MultilibSet, and contains helper functions to add combinations of ...
Definition MultilibBuilder.h:96
clang::driver::MultilibSetBuilder::Maybe
MultilibSetBuilder & Maybe(const MultilibBuilder &M)
Add an optional Multilib segment.
Definition MultilibBuilder.cpp:95
clang::driver::MultilibSetBuilder::FilterOut
MultilibSetBuilder & FilterOut(const char *Regex)
Filter out those Multilibs whose gccSuffix matches the given expression.
Definition MultilibBuilder.cpp:172
clang::driver::MultilibSetBuilder::Either
MultilibSetBuilder & Either(const MultilibBuilder &M1, const MultilibBuilder &M2)
Add a set of mutually incompatible Multilib segments.
Definition MultilibBuilder.cpp:105
clang::driver::MultilibSet
See also MultilibSetBuilder for combining multilibs into a set.
Definition Multilib.h:129
clang::driver::MultilibSet::select
bool select(const Driver &D, const Multilib::flags_list &Flags, llvm::SmallVectorImpl< Multilib > &, llvm::SmallVector< StringRef > *=nullptr) const
Select compatible variants,.
Definition Multilib.cpp:216
clang::driver::MultilibSet::setFilePathsCallback
MultilibSet & setFilePathsCallback(IncludeDirsFunc F)
Definition Multilib.h:201
clang::driver::MultilibSet::size
unsigned size() const
Definition Multilib.h:184
clang::driver::MultilibSet::FilterOut
MultilibSet & FilterOut(FilterCallback F)
Filter out some subset of the Multilibs using a user defined callback.
Definition Multilib.cpp:86
clang::driver::MultilibSet::setIncludeDirsCallback
MultilibSet & setIncludeDirsCallback(IncludeDirsFunc F)
Definition Multilib.h:194
clang::driver::Multilib
This corresponds to a single GCC Multilib, or a segment of one controlled by a command line flag.
Definition Multilib.h:35
clang::driver::Multilib::gccSuffix
const std::string & gccSuffix() const
Get the detected GCC installation path suffix for the multi-arch target variant.
Definition Multilib.h:70
clang::driver::Multilib::osSuffix
const std::string & osSuffix() const
Get the detected os path suffix for the multi-arch target variant.
Definition Multilib.h:74
clang::driver::Multilib::flags_list
std::vector< std::string > flags_list
Definition Multilib.h:37
clang::driver::Multilib::includeSuffix
const std::string & includeSuffix() const
Get the include directory suffix.
Definition Multilib.h:78
clang::driver::ToolChain
ToolChain - Access to tools for a single platform.
Definition ToolChain.h:96
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:1719
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:1539
clang::driver::ToolChain::GetRuntimeLibType
virtual RuntimeLibType GetRuntimeLibType(const llvm::opt::ArgList &Args) const
Definition ToolChain.cpp:1565
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:1808
clang::driver::ToolChain::addFortranRuntimeLibraryPath
virtual void addFortranRuntimeLibraryPath(const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs) const
Adds the path for the Fortran runtime libraries to CmdArgs.
Definition ToolChain.cpp:1016
clang::driver::ToolChain::GetFilePath
std::string GetFilePath(const char *Name) const
Definition ToolChain.cpp:1283
clang::driver::ToolChain::addFortranRuntimeLibs
virtual void addFortranRuntimeLibs(const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs) const
Adds Fortran runtime libraries to CmdArgs.
Definition ToolChain.cpp:974
clang::driver::ToolChain::getArch
llvm::Triple::ArchType getArch() const
Definition ToolChain.h:302
clang::driver::ToolChain::getDriver
const Driver & getDriver() const
Definition ToolChain.h:286
clang::driver::ToolChain::detectLibcxxVersion
virtual std::string detectLibcxxVersion(StringRef IncludePath) const
Definition ToolChain.cpp:1753
clang::driver::ToolChain::concat
static std::string concat(StringRef Path, const Twine &A, const Twine &B="", const Twine &C="", const Twine &D="")
Definition ToolChain.cpp:1746
clang::driver::ToolChain::getVFS
llvm::vfs::FileSystem & getVFS() const
Definition ToolChain.cpp:225
clang::driver::ToolChain::getCompilerRT
virtual std::string getCompilerRT(const llvm::opt::ArgList &Args, StringRef Component, FileType Type=ToolChain::FT_Static, bool IsFortran=false) const
Definition ToolChain.cpp:937
clang::driver::ToolChain::ToolChain
ToolChain(const Driver &D, const llvm::Triple &T, const llvm::opt::ArgList &Args)
Definition ToolChain.cpp:92
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:1881
clang::driver::ToolChain::getProgramPaths
path_list & getProgramPaths()
Definition ToolChain.h:329
clang::driver::ToolChain::addExternCSystemIncludeIfExists
static void addExternCSystemIncludeIfExists(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, const Twine &Path)
Definition ToolChain.cpp:1711
clang::driver::ToolChain::getLTOMode
virtual LTOKind getLTOMode(const llvm::opt::ArgList &Args, Action::OffloadKind Kind=Action::OFK_None) const
Resolve the requested LTO mode for this toolchain.
Definition ToolChain.cpp:1409
clang::driver::ToolChain::addOffloadRTLibs
virtual void addOffloadRTLibs(unsigned ActiveKinds, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs) const
Add the system specific libraries for the active offload kinds.
Definition ToolChain.h:880
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:1814
clang::driver::ToolChain::getTriple
const llvm::Triple & getTriple() const
Definition ToolChain.h:288
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:1111
clang::driver::ToolChain::getTripleString
StringRef getTripleString() const
Definition ToolChain.h:311
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:1291
clang::driver::ToolChain::GetDefaultStackProtectorLevel
virtual LangOptions::StackProtectorMode GetDefaultStackProtectorLevel(bool KernelOrKext) const
GetDefaultStackProtectorLevel - Get the default stack protector level for this tool chain.
Definition ToolChain.h:536
clang::driver::ToolChain::AddFilePathLibArgs
virtual 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:1833
clang::driver::ToolChain::GetCXXStdlibType
virtual CXXStdlibType GetCXXStdlibType(const llvm::opt::ArgList &Args) const
Definition ToolChain.cpp:1628
clang::driver::ToolChain::getTool
virtual Tool * getTool(Action::ActionClass AC) const
Definition ToolChain.cpp:783
clang::driver::ToolChain::path_list
SmallVector< std::string, 16 > path_list
Definition ToolChain.h:98
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:435
clang::driver::toolchains::Generic_ELF::addClangTargetOptions
void addClangTargetOptions(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, BoundArch BA, Action::OffloadKind DeviceOffloadKind) const override
Add options that need to be passed to cc1 for this target.
Definition Gnu.cpp:3519
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::print
void print(raw_ostream &OS) const
Print information about the detected GCC installation.
Definition Gnu.cpp:2247
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getBiarchSibling
bool getBiarchSibling(Multilib &M) const
Get the biarch sibling multilib (if it exists).
Definition Gnu.cpp:2264
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:2109
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:3153
clang::driver::toolchains::Generic_GCC::CudaInstallation
LazyDetector< CudaInstallationDetector > CudaInstallation
Definition Gnu.h:358
clang::driver::toolchains::Generic_GCC::PushPPaths
void PushPPaths(ToolChain::path_list &PPaths)
Definition Gnu.cpp:3138
clang::driver::toolchains::Generic_GCC::getTool
Tool * getTool(Action::ActionClass AC) const override
Definition Gnu.cpp:3057
clang::driver::toolchains::Generic_GCC::Generic_GCC
Generic_GCC(const Driver &D, const llvm::Triple &Triple, const llvm::opt::ArgList &Args)
Definition Gnu.cpp:3047
clang::driver::toolchains::Generic_GCC::GCCInstallation
GCCInstallationDetector GCCInstallation
Definition Gnu.h:357
clang::driver::toolchains::Generic_GCC::SYCLInstallation
LazyDetector< SYCLInstallationDetector > SYCLInstallation
Definition Gnu.h:360
clang::driver::toolchains::Generic_GCC::AddMultilibIncludeArgs
void AddMultilibIncludeArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Definition Gnu.cpp:3233
clang::driver::toolchains::Generic_GCC::TranslateArgs
llvm::opt::DerivedArgList * TranslateArgs(const llvm::opt::DerivedArgList &Args, BoundArch BA, Action::OffloadKind DeviceOffloadKind) const override
TranslateArgs - Create a new derived argument list for any argument translations this ToolChain may w...
Definition Gnu.cpp:3477
clang::driver::toolchains::Generic_GCC::IsIntegratedAssemblerDefault
bool IsIntegratedAssemblerDefault() const override
IsIntegratedAssemblerDefault - Does this tool chain enable -integrated-as by default.
Definition Gnu.cpp:3127
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:3253
clang::driver::toolchains::Generic_GCC::buildLinker
Tool * buildLinker() const override
Definition Gnu.cpp:3076
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:3123
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:3119
clang::driver::toolchains::Generic_GCC::printVerboseInfo
void printVerboseInfo(raw_ostream &OS) const override
Dispatch to the specific toolchain for verbose printing.
Definition Gnu.cpp:3078
clang::driver::toolchains::Generic_GCC::~Generic_GCC
~Generic_GCC() override
Definition Gnu.cpp:3055
clang::driver::toolchains::Generic_GCC::addSYCLIncludeArgs
void addSYCLIncludeArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const override
Add arguments to use system-specific SYCL includes.
Definition Gnu.cpp:3270
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:3218
clang::driver::toolchains::Generic_GCC::buildAssembler
Tool * buildAssembler() const override
Definition Gnu.cpp:3072
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:3086
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:3366
clang::driver::toolchains::Generic_GCC::isPICDefault
bool isPICDefault() const override
Test whether this toolchain defaults to PIC.
Definition Gnu.cpp:3107
clang::driver::toolchains::Generic_GCC::addGCCLibStdCxxIncludePaths
bool addGCCLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC) const
Definition Gnu.cpp:3453
clang::driver::toolchains::Generic_GCC::addLibCxxIncludePaths
virtual void addLibCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Definition Gnu.cpp:3276
clang::driver::toolchains::Generic_GCC::RocmInstallation
LazyDetector< RocmInstallationDetector > RocmInstallation
Definition Gnu.h:359
clang::driver::toolchains::Generic_GCC::addLibStdCxxIncludePaths
virtual void addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Definition Gnu.cpp:3467
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:67
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:189
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:217
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:184
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:611
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:272
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:227
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::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:22
clang::driver::tools::riscv::getRISCVArch
std::string getRISCVArch(const llvm::opt::ArgList &Args, const llvm::Triple &Triple)
Definition RISCV.cpp:305
clang::driver::tools::riscv::getRISCVABI
StringRef getRISCVABI(const llvm::opt::ArgList &Args, const llvm::Triple &Triple)
clang::driver::tools::sparc::getSparcAsmModeForCPU
const char * getSparcAsmModeForCPU(llvm::StringRef Name, const llvm::Triple &Triple)
clang::driver::tools::systemz::getSystemZTargetCPU
std::string getSystemZTargetCPU(const llvm::opt::ArgList &Args, const llvm::Triple &T)
clang::driver::tools::SplitDebugName
const char * SplitDebugName(const JobAction &JA, const llvm::opt::ArgList &Args, const InputInfo &Input, const InputInfo &Output)
clang::driver::tools::getStaticPIE
bool getStaticPIE(const llvm::opt::ArgList &Args, const ToolChain &TC)
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::addLTOOptions
void addLTOOptions(const ToolChain &ToolChain, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs, const InputInfo &Output, const InputInfoList &Inputs, bool IsThinLTO)
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:2635
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::addLLVMOffloadingRuntime
bool addLLVMOffloadingRuntime(const Compilation &C, llvm::opt::ArgStringList &CmdArgs, const ToolChain &TC, const llvm::opt::ArgList &Args)
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:389
clang::driver::tools::addLinkerCompressDebugSectionsOption
void addLinkerCompressDebugSectionsOption(const ToolChain &TC, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs)
Definition CommonArgs.cpp:665
clang::driver::tools::addOpenMPRuntime
bool addOpenMPRuntime(const Compilation &C, llvm::opt::ArgStringList &CmdArgs, const ToolChain &TC, const llvm::opt::ArgList &Args, bool ForceStaticHostRuntime=false, bool IsOffloadingHost=false, bool GompNeedsRT=false)
Returns true, if an OpenMP runtime has been added.
clang::driver::tools::ParsePICArgs
std::tuple< llvm::Reloc::Model, unsigned, bool > ParsePICArgs(const ToolChain &ToolChain, const llvm::opt::ArgList &Args)
clang::driver::tools::claimNoWarnArgs
void claimNoWarnArgs(const llvm::opt::ArgList &Args)
clang::driver::tools::AddLinkerInputs
void AddLinkerInputs(const ToolChain &TC, const InputInfoList &Inputs, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs, const JobAction &JA)
clang::driver::tools::getDwarfVersion
unsigned getDwarfVersion(const ToolChain &TC, const llvm::opt::ArgList &Args)
Definition CommonArgs.cpp:2392
clang::driver::tools::getLDMOption
const char * getLDMOption(const llvm::Triple &T, const llvm::opt::ArgList &Args)
clang::driver::types::isLLVMIR
bool isLLVMIR(ID Id)
Is this LLVM IR.
Definition Types.cpp:290
clang::driver::types::getTypeName
const char * getTypeName(ID Id)
getTypeName - Return the name of the type for Id.
Definition Types.cpp:49
clang::driver::types::canTypeBeUserSpecified
bool canTypeBeUserSpecified(ID Id)
canTypeBeUserSpecified - Can this type be specified on the command line (by the type name); this is u...
Definition Types.cpp:103
clang::driver::InputInfoList
SmallVector< InputInfo, 4 > InputInfoList
Definition Driver.h:52
clang::driver::findMIPSMultilibs
bool findMIPSMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const llvm::opt::ArgList &Args, DetectedMultilibs &Result)
clang
Top level wrappers for InstallAPI frontend operations.
Definition CalledOnceCheck.h:17
clang::Callback
Stmt Stmt * Callback
Definition StmtOpenMP.h:919
clang::Default
@ Default
Set to the current date and time.
Definition PreprocessorOptions.h:49
clang::ObjCSubstitutionContext::Result
@ Result
The result type of a method or function.
Definition TypeBase.h:906
clang::BoundArch
Represents a bound architecture for offload / multiple architecture compilation.
Definition OffloadArch.h:129
clang::BoundArch::ArchName
llvm::StringRef ArchName
Definition OffloadArch.h:130
clang::BoundArch::empty
bool empty() const
Definition OffloadArch.h:143
clang::driver::DetectedMultilibs::Multilibs
MultilibSet Multilibs
The set of multilibs that the detected installation supports.
Definition Gnu.h:25
clang::driver::DetectedMultilibs::BiarchSibling
std::optional< Multilib > BiarchSibling
On Biarch systems, this corresponds to the default multilib when targeting the non-default multilib.
Definition Gnu.h:32
clang::driver::DetectedMultilibs::SelectedMultilibs
llvm::SmallVector< Multilib > SelectedMultilibs
The multilibs appropriate for the given flags.
Definition Gnu.h:28
clang::driver::ResponseFileSupport::AtFileCurCP
static constexpr ResponseFileSupport AtFileCurCP()
Definition Job.h:93
clang::driver::toolchains::Generic_GCC::GCCInstallCandidate
Definition Gnu.h:187
clang::driver::toolchains::Generic_GCC::GCCInstallCandidate::getTriple
const llvm::Triple & getTriple() const
Get the GCC triple for the detected install.
Definition Gnu.h:200
clang::driver::toolchains::Generic_GCC::GCCInstallCandidate::getInstallPath
StringRef getInstallPath() const
Get the detected GCC installation path.
Definition Gnu.h:203
clang::driver::toolchains::Generic_GCC::GCCInstallCandidate::getParentLibPath
StringRef getParentLibPath() const
Get the detected GCC parent lib path.
Definition Gnu.h:206
clang::driver::toolchains::Generic_GCC::GCCInstallCandidate::Version
GCCVersion Version
Definition Gnu.h:197
clang::driver::toolchains::Generic_GCC::GCCInstallCandidate::GCCTriple
llvm::Triple GCCTriple
Definition Gnu.h:192
clang::driver::toolchains::Generic_GCC::GCCInstallCandidate::GCCParentLibPath
std::string GCCParentLibPath
Definition Gnu.h:190
clang::driver::toolchains::Generic_GCC::GCCInstallCandidate::GCCInstallPath
std::string GCCInstallPath
Definition Gnu.h:189
clang::driver::toolchains::Generic_GCC::GCCInstallCandidate::getMultilib
const Multilib & getMultilib() const
Get the detected Multilib.
Definition Gnu.h:209
clang::driver::toolchains::Generic_GCC::GCCInstallCandidate::addGCCLibStdCxxIncludePaths
bool addGCCLibStdCxxIncludePaths(llvm::vfs::FileSystem &vfs, const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, StringRef DebianMultiarch) const
Definition Gnu.cpp:3375
clang::driver::toolchains::Generic_GCC::GCCInstallCandidate::getVersion
const GCCVersion & getVersion() const
Get the detected GCC version string.
Definition Gnu.h:212
clang::driver::toolchains::Generic_GCC::GCCVersion
Struct to store and manipulate GCC versions.
Definition Gnu.h:163
clang::driver::toolchains::Generic_GCC::GCCVersion::MajorStr
std::string MajorStr
The text of the parsed major, and major+minor versions.
Definition Gnu.h:171
clang::driver::toolchains::Generic_GCC::GCCVersion::isOlderThan
bool isOlderThan(int RHSMajor, int RHSMinor, int RHSPatch, StringRef RHSPatchSuffix=StringRef()) const
Generic_GCC - A tool chain using the 'gcc' command to perform all subcommands; this relies on gcc tra...
Definition Gnu.cpp:1967
clang::driver::toolchains::Generic_GCC::GCCVersion::MinorStr
std::string MinorStr
Definition Gnu.h:171
clang::driver::toolchains::Generic_GCC::GCCVersion::Minor
int Minor
Definition Gnu.h:168
clang::driver::toolchains::Generic_GCC::GCCVersion::Patch
int Patch
Definition Gnu.h:168
clang::driver::toolchains::Generic_GCC::GCCVersion::PatchSuffix
std::string PatchSuffix
Any textual suffix on the patch number.
Definition Gnu.h:174
clang::driver::toolchains::Generic_GCC::GCCVersion::Major
int Major
The parsed major, minor, and patch numbers.
Definition Gnu.h:168
clang::driver::toolchains::Generic_GCC::GCCVersion::Parse
static GCCVersion Parse(StringRef VersionText)
Parse a GCCVersion object out of a string of text.
Definition Gnu.cpp:2011
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