clang 24.0.0git
Gnu.cpp
Go to the documentation of this file.
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, C);
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 && ToolChain.GetFilePathIfExists("libssp_nonshared.a"))
552 CmdArgs.push_back("-lssp_nonshared");
553 }
554
555 // Add IAMCU specific libs, if needed.
556 if (IsIAMCU)
557 CmdArgs.push_back("-lgloss");
558
559 if (IsStatic || IsStaticPIE)
560 CmdArgs.push_back("--end-group");
561 else
562 AddRunTimeLibs(ToolChain, D, CmdArgs, Args);
563
564 // Add IAMCU specific libs (outside the group), if needed.
565 if (IsIAMCU) {
566 CmdArgs.push_back("--as-needed");
567 CmdArgs.push_back("-lsoftfp");
568 CmdArgs.push_back("--no-as-needed");
569 }
570 }
571
572 if (!Args.hasArg(options::OPT_nostartfiles) && !IsIAMCU) {
573 if (HasCRTBeginEndFiles) {
574 std::string P;
575 if (ToolChain.GetRuntimeLibType(Args) == ToolChain::RLT_CompilerRT &&
576 !isAndroid) {
577 std::string crtend = ToolChain.getCompilerRT(Args, "crtend",
578 ToolChain::FT_Object);
579 if (ToolChain.getVFS().exists(crtend))
580 P = crtend;
581 }
582 if (P.empty()) {
583 const char *crtend;
584 if (Args.hasArg(options::OPT_shared))
585 crtend = isAndroid ? "crtend_so.o" : "crtendS.o";
586 else if (IsPIE || IsStaticPIE)
587 crtend = isAndroid ? "crtend_android.o" : "crtendS.o";
588 else
589 crtend = isAndroid ? "crtend_android.o" : "crtend.o";
590 P = ToolChain.GetFilePath(crtend);
591 }
592 CmdArgs.push_back(Args.MakeArgString(P));
593 }
594 if (!isAndroid)
595 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o")));
596 }
597 }
598
599 // Emit -T after -L paths so that INPUT()/GROUP() directives in the linker
600 // script resolve against the user-supplied and toolchain search paths in GNU
601 // ld.
602 Args.addAllArgs(CmdArgs, {options::OPT_T});
603
604 const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath());
605 C.addCommand(std::make_unique<Command>(JA, *this,
606 ResponseFileSupport::AtFileCurCP(),
607 Exec, CmdArgs, Inputs, Output));
608}
609
610void tools::gnutools::Assembler::ConstructJob(Compilation &C,
611 const JobAction &JA,
612 const InputInfo &Output,
613 const InputInfoList &Inputs,
614 const ArgList &Args,
615 const char *LinkingOutput) const {
616 const auto &D = getToolChain().getDriver();
617
618 claimNoWarnArgs(Args);
619
620 ArgStringList CmdArgs;
621
622 llvm::Reloc::Model RelocationModel;
623 unsigned PICLevel;
624 bool IsPIE;
625 const char *DefaultAssembler = "as";
626 // Enforce GNU as on Solaris; the native assembler's input syntax isn't fully
627 // compatible.
628 if (getToolChain().getTriple().isOSSolaris())
629 DefaultAssembler = "gas";
630 std::tie(RelocationModel, PICLevel, IsPIE) =
631 ParsePICArgs(getToolChain(), Args);
632
633 if (const Arg *A = Args.getLastArg(options::OPT_gz, options::OPT_gz_EQ)) {
634 if (A->getOption().getID() == options::OPT_gz) {
635 CmdArgs.push_back("--compress-debug-sections");
636 } else {
637 StringRef Value = A->getValue();
638 if (Value == "none" || Value == "zlib" || Value == "zstd") {
639 CmdArgs.push_back(
640 Args.MakeArgString("--compress-debug-sections=" + Twine(Value)));
641 } else {
642 D.Diag(diag::err_drv_unsupported_option_argument)
643 << A->getSpelling() << Value;
644 }
645 }
646 }
647
648 switch (getToolChain().getArch()) {
649 default:
650 break;
651 // Add --32/--64 to make sure we get the format we want.
652 // This is incomplete
653 case llvm::Triple::x86:
654 CmdArgs.push_back("--32");
655 break;
656 case llvm::Triple::x86_64:
657 if (getToolChain().getTriple().isX32())
658 CmdArgs.push_back("--x32");
659 else
660 CmdArgs.push_back("--64");
661 break;
662 case llvm::Triple::ppc: {
663 CmdArgs.push_back("-a32");
664 CmdArgs.push_back("-mppc");
665 CmdArgs.push_back("-mbig-endian");
666 CmdArgs.push_back(ppc::getPPCAsmModeForCPU(
667 getCPUName(D, Args, getToolChain().getTriple())));
668 break;
669 }
670 case llvm::Triple::ppcle: {
671 CmdArgs.push_back("-a32");
672 CmdArgs.push_back("-mppc");
673 CmdArgs.push_back("-mlittle-endian");
674 CmdArgs.push_back(ppc::getPPCAsmModeForCPU(
675 getCPUName(D, Args, getToolChain().getTriple())));
676 break;
677 }
678 case llvm::Triple::ppc64: {
679 CmdArgs.push_back("-a64");
680 CmdArgs.push_back("-mppc64");
681 CmdArgs.push_back("-mbig-endian");
682 CmdArgs.push_back(ppc::getPPCAsmModeForCPU(
683 getCPUName(D, Args, getToolChain().getTriple())));
684 break;
685 }
686 case llvm::Triple::ppc64le: {
687 CmdArgs.push_back("-a64");
688 CmdArgs.push_back("-mppc64");
689 CmdArgs.push_back("-mlittle-endian");
690 CmdArgs.push_back(ppc::getPPCAsmModeForCPU(
691 getCPUName(D, Args, getToolChain().getTriple())));
692 break;
693 }
694 case llvm::Triple::riscv32:
695 case llvm::Triple::riscv64:
696 case llvm::Triple::riscv32be:
697 case llvm::Triple::riscv64be: {
698 StringRef ABIName = riscv::getRISCVABI(Args, getToolChain().getTriple());
699 CmdArgs.push_back("-mabi");
700 CmdArgs.push_back(ABIName.data());
701 std::string MArchName =
702 riscv::getRISCVArch(Args, getToolChain().getTriple());
703 CmdArgs.push_back("-march");
704 CmdArgs.push_back(Args.MakeArgString(MArchName));
705 if (!Args.hasFlag(options::OPT_mrelax, options::OPT_mno_relax, true))
706 Args.addOptOutFlag(CmdArgs, options::OPT_mrelax, options::OPT_mno_relax);
707 break;
708 }
709 case llvm::Triple::sparc:
710 case llvm::Triple::sparcel: {
711 CmdArgs.push_back("-32");
712 std::string CPU = getCPUName(D, Args, getToolChain().getTriple());
713 CmdArgs.push_back(
714 sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple()));
715 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
716 break;
717 }
718 case llvm::Triple::sparcv9: {
719 CmdArgs.push_back("-64");
720 std::string CPU = getCPUName(D, Args, getToolChain().getTriple());
721 CmdArgs.push_back(
722 sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple()));
723 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
724 break;
725 }
726 case llvm::Triple::arm:
727 case llvm::Triple::armeb:
728 case llvm::Triple::thumb:
729 case llvm::Triple::thumbeb: {
730 const llvm::Triple &Triple2 = getToolChain().getTriple();
731 CmdArgs.push_back(arm::isARMBigEndian(Triple2, Args) ? "-EB" : "-EL");
732 switch (Triple2.getSubArch()) {
733 case llvm::Triple::ARMSubArch_v7:
734 CmdArgs.push_back("-mfpu=neon");
735 break;
736 case llvm::Triple::ARMSubArch_v8:
737 CmdArgs.push_back("-mfpu=crypto-neon-fp-armv8");
738 break;
739 default:
740 break;
741 }
742
743 switch (arm::getARMFloatABI(getToolChain(), Args)) {
744 case arm::FloatABI::Invalid: llvm_unreachable("must have an ABI!");
745 case arm::FloatABI::Soft:
746 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=soft"));
747 break;
748 case arm::FloatABI::SoftFP:
749 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=softfp"));
750 break;
751 case arm::FloatABI::Hard:
752 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=hard"));
753 break;
754 }
755
756 Args.AddLastArg(CmdArgs, options::OPT_march_EQ);
757 normalizeCPUNamesForAssembler(Args, CmdArgs);
758
759 Args.AddLastArg(CmdArgs, options::OPT_mfpu_EQ);
760 // The integrated assembler doesn't implement e_flags setting behavior for
761 // -meabi=gnu (gcc -mabi={apcs-gnu,atpcs} passes -meabi=gnu to gas). For
762 // compatibility we accept but warn.
763 if (Arg *A = Args.getLastArgNoClaim(options::OPT_mabi_EQ))
764 A->ignoreTargetSpecific();
765 break;
766 }
767 case llvm::Triple::aarch64:
768 case llvm::Triple::aarch64_be: {
769 CmdArgs.push_back(
770 getToolChain().getArch() == llvm::Triple::aarch64_be ? "-EB" : "-EL");
771 Args.AddLastArg(CmdArgs, options::OPT_march_EQ);
772 normalizeCPUNamesForAssembler(Args, CmdArgs);
773
774 break;
775 }
776 case llvm::Triple::loongarch32: {
777 StringRef ABIName =
778 loongarch::getLoongArchABI(D, Args, getToolChain().getTriple());
779 CmdArgs.push_back(Args.MakeArgString("-mabi=" + ABIName));
780 break;
781 }
782 case llvm::Triple::loongarch64: {
783 StringRef ABIName =
784 loongarch::getLoongArchABI(D, Args, getToolChain().getTriple());
785 CmdArgs.push_back(Args.MakeArgString("-mabi=" + ABIName));
786 break;
787 }
788 case llvm::Triple::mips:
789 case llvm::Triple::mipsel:
790 case llvm::Triple::mips64:
791 case llvm::Triple::mips64el: {
792 StringRef CPUName;
793 StringRef ABIName;
794 mips::getMipsCPUAndABI(Args, getToolChain().getTriple(), CPUName, ABIName);
795 ABIName = mips::getGnuCompatibleMipsABIName(ABIName);
796
797 CmdArgs.push_back("-march");
798 CmdArgs.push_back(CPUName.data());
799
800 CmdArgs.push_back("-mabi");
801 CmdArgs.push_back(ABIName.data());
802
803 // -mno-shared should be emitted unless -fpic, -fpie, -fPIC, -fPIE,
804 // or -mshared (not implemented) is in effect.
805 if (RelocationModel == llvm::Reloc::Static)
806 CmdArgs.push_back("-mno-shared");
807
808 // LLVM doesn't support -mplt yet and acts as if it is always given.
809 // However, -mplt has no effect with the N64 ABI.
810 if (ABIName != "64" && !Args.hasArg(options::OPT_mno_abicalls))
811 CmdArgs.push_back("-call_nonpic");
812
813 if (getToolChain().getTriple().isLittleEndian())
814 CmdArgs.push_back("-EL");
815 else
816 CmdArgs.push_back("-EB");
817
818 if (Arg *A = Args.getLastArg(options::OPT_mnan_EQ)) {
819 if (StringRef(A->getValue()) == "2008")
820 CmdArgs.push_back(Args.MakeArgString("-mnan=2008"));
821 }
822
823 // Add the last -mfp32/-mfpxx/-mfp64 or -mfpxx if it is enabled by default.
824 if (Arg *A = Args.getLastArg(options::OPT_mfp32, options::OPT_mfpxx,
825 options::OPT_mfp64)) {
826 A->claim();
827 A->render(Args, CmdArgs);
828 } else if (mips::shouldUseFPXX(
829 Args, getToolChain().getTriple(), CPUName, ABIName,
830 mips::getMipsFloatABI(getToolChain().getDriver(), Args,
831 getToolChain().getTriple())))
832 CmdArgs.push_back("-mfpxx");
833
834 // Pass on -mmips16 or -mno-mips16. However, the assembler equivalent of
835 // -mno-mips16 is actually -no-mips16.
836 if (Arg *A =
837 Args.getLastArg(options::OPT_mips16, options::OPT_mno_mips16)) {
838 if (A->getOption().matches(options::OPT_mips16)) {
839 A->claim();
840 A->render(Args, CmdArgs);
841 } else {
842 A->claim();
843 CmdArgs.push_back("-no-mips16");
844 }
845 }
846
847 Args.AddLastArg(CmdArgs, options::OPT_mmicromips,
848 options::OPT_mno_micromips);
849 Args.AddLastArg(CmdArgs, options::OPT_mdsp, options::OPT_mno_dsp);
850 Args.AddLastArg(CmdArgs, options::OPT_mdspr2, options::OPT_mno_dspr2);
851
852 if (Arg *A = Args.getLastArg(options::OPT_mmsa, options::OPT_mno_msa)) {
853 // Do not use AddLastArg because not all versions of MIPS assembler
854 // support -mmsa / -mno-msa options.
855 if (A->getOption().matches(options::OPT_mmsa))
856 CmdArgs.push_back(Args.MakeArgString("-mmsa"));
857 }
858
859 Args.AddLastArg(CmdArgs, options::OPT_mhard_float,
860 options::OPT_msoft_float);
861
862 Args.AddLastArg(CmdArgs, options::OPT_mdouble_float,
863 options::OPT_msingle_float);
864
865 Args.AddLastArg(CmdArgs, options::OPT_modd_spreg,
866 options::OPT_mno_odd_spreg);
867
868 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
869 break;
870 }
871 case llvm::Triple::systemz: {
872 // Always pass an -march option, since our default of z10 is later
873 // than the GNU assembler's default.
874 std::string CPUName =
875 systemz::getSystemZTargetCPU(Args, getToolChain().getTriple());
876 CmdArgs.push_back(Args.MakeArgString("-march=" + CPUName));
877 break;
878 }
879 case llvm::Triple::ve:
880 DefaultAssembler = "nas";
881 }
882
883 for (const Arg *A : Args.filtered(options::OPT_ffile_prefix_map_EQ,
884 options::OPT_fdebug_prefix_map_EQ)) {
885 StringRef Map = A->getValue();
886 if (!Map.contains('='))
887 D.Diag(diag::err_drv_invalid_argument_to_option)
888 << Map << A->getOption().getName();
889 else {
890 CmdArgs.push_back(Args.MakeArgString("--debug-prefix-map"));
891 CmdArgs.push_back(Args.MakeArgString(Map));
892 }
893 A->claim();
894 }
895
896 Args.AddAllArgs(CmdArgs, options::OPT_I);
897 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
898
899 CmdArgs.push_back("-o");
900 CmdArgs.push_back(Output.getFilename());
901
902 for (const auto &II : Inputs)
903 CmdArgs.push_back(II.getFilename());
904
905 if (Arg *A = Args.getLastArg(options::OPT_g_Flag, options::OPT_gN_Group,
906 options::OPT_gdwarf_2, options::OPT_gdwarf_3,
907 options::OPT_gdwarf_4, options::OPT_gdwarf_5,
908 options::OPT_gdwarf))
909 if (!A->getOption().matches(options::OPT_g0)) {
910 Args.AddLastArg(CmdArgs, options::OPT_g_Flag);
911
912 unsigned DwarfVersion = getDwarfVersion(getToolChain(), Args);
913 CmdArgs.push_back(Args.MakeArgString("-gdwarf-" + Twine(DwarfVersion)));
914 }
915
916 const char *Exec =
917 Args.MakeArgString(getToolChain().GetProgramPath(DefaultAssembler));
918 C.addCommand(std::make_unique<Command>(JA, *this,
919 ResponseFileSupport::AtFileCurCP(),
920 Exec, CmdArgs, Inputs, Output));
921
922 // Handle the debug info splitting at object creation time if we're
923 // creating an object.
924 // TODO: Currently only works on linux with newer objcopy.
925 if (Args.hasArg(options::OPT_gsplit_dwarf) &&
926 getToolChain().getTriple().isOSLinux())
927 SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output,
928 SplitDebugName(JA, Args, Inputs[0], Output));
929}
930
931namespace {
932// Filter to remove Multilibs that don't exist as a suffix to Path
933class FilterNonExistent {
934 StringRef Base, File;
935 llvm::vfs::FileSystem &VFS;
936
937public:
938 FilterNonExistent(StringRef Base, StringRef File, llvm::vfs::FileSystem &VFS)
939 : Base(Base), File(File), VFS(VFS) {}
940 bool operator()(const Multilib &M) {
941 return !VFS.exists(Base + M.gccSuffix() + File);
942 }
943};
944} // end anonymous namespace
945
946static bool isSoftFloatABI(const ArgList &Args) {
947 Arg *A = Args.getLastArg(options::OPT_msoft_float, options::OPT_mhard_float,
948 options::OPT_mfloat_abi_EQ);
949 if (!A)
950 return false;
951
952 return A->getOption().matches(options::OPT_msoft_float) ||
953 (A->getOption().matches(options::OPT_mfloat_abi_EQ) &&
954 A->getValue() == StringRef("soft"));
955}
956
957static bool isArmOrThumbArch(llvm::Triple::ArchType Arch) {
958 return Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb;
959}
960
961static bool isMipsEL(llvm::Triple::ArchType Arch) {
962 return Arch == llvm::Triple::mipsel || Arch == llvm::Triple::mips64el;
963}
964
965static bool isMips16(const ArgList &Args) {
966 Arg *A = Args.getLastArg(options::OPT_mips16, options::OPT_mno_mips16);
967 return A && A->getOption().matches(options::OPT_mips16);
968}
969
970static bool isMicroMips(const ArgList &Args) {
971 Arg *A = Args.getLastArg(options::OPT_mmicromips, options::OPT_mno_micromips);
972 return A && A->getOption().matches(options::OPT_mmicromips);
973}
974
975static bool isMSP430(llvm::Triple::ArchType Arch) {
976 return Arch == llvm::Triple::msp430;
977}
978
979static bool findMipsCsMultilibs(const Driver &D,
980 const Multilib::flags_list &Flags,
981 FilterNonExistent &NonExistent,
982 DetectedMultilibs &Result) {
983 // Check for Code Sourcery toolchain multilibs
984 MultilibSet CSMipsMultilibs;
985 {
986 auto MArchMips16 = MultilibBuilder("/mips16").flag("-m32").flag("-mips16");
987
988 auto MArchMicroMips =
989 MultilibBuilder("/micromips").flag("-m32").flag("-mmicromips");
990
991 auto MArchDefault = MultilibBuilder("")
992 .flag("-mips16", /*Disallow=*/true)
993 .flag("-mmicromips", /*Disallow=*/true);
994
995 auto UCLibc = MultilibBuilder("/uclibc").flag("-muclibc");
996
997 auto SoftFloat = MultilibBuilder("/soft-float").flag("-msoft-float");
998
999 auto Nan2008 = MultilibBuilder("/nan2008").flag("-mnan=2008");
1000
1001 auto DefaultFloat = MultilibBuilder("")
1002 .flag("-msoft-float", /*Disallow=*/true)
1003 .flag("-mnan=2008", /*Disallow=*/true);
1004
1005 auto BigEndian =
1006 MultilibBuilder("").flag("-EB").flag("-EL", /*Disallow=*/true);
1007
1008 auto LittleEndian =
1009 MultilibBuilder("/el").flag("-EL").flag("-EB", /*Disallow=*/true);
1010
1011 // Note that this one's osSuffix is ""
1012 auto MAbi64 = MultilibBuilder("")
1013 .gccSuffix("/64")
1014 .includeSuffix("/64")
1015 .flag("-mabi=n64")
1016 .flag("-mabi=n32", /*Disallow=*/true)
1017 .flag("-m32", /*Disallow=*/true);
1018
1019 CSMipsMultilibs =
1020 MultilibSetBuilder()
1021 .Either(MArchMips16, MArchMicroMips, MArchDefault)
1022 .Maybe(UCLibc)
1023 .Either(SoftFloat, Nan2008, DefaultFloat)
1024 .FilterOut("/micromips/nan2008")
1025 .FilterOut("/mips16/nan2008")
1026 .Either(BigEndian, LittleEndian)
1027 .Maybe(MAbi64)
1028 .FilterOut("/mips16.*/64")
1029 .FilterOut("/micromips.*/64")
1030 .makeMultilibSet()
1031 .FilterOut(NonExistent)
1032 .setIncludeDirsCallback([](const Multilib &M) {
1033 std::vector<std::string> Dirs({"/include"});
1034 if (StringRef(M.includeSuffix()).starts_with("/uclibc"))
1035 Dirs.push_back(
1036 "/../../../../mips-linux-gnu/libc/uclibc/usr/include");
1037 else
1038 Dirs.push_back("/../../../../mips-linux-gnu/libc/usr/include");
1039 return Dirs;
1040 });
1041 }
1042
1043 MultilibSet DebianMipsMultilibs;
1044 {
1045 MultilibBuilder MAbiN32 =
1046 MultilibBuilder().gccSuffix("/n32").includeSuffix("/n32").flag(
1047 "-mabi=n32");
1048
1049 MultilibBuilder M64 = MultilibBuilder()
1050 .gccSuffix("/64")
1051 .includeSuffix("/64")
1052 .flag("-m64")
1053 .flag("-m32", /*Disallow=*/true)
1054 .flag("-mabi=n32", /*Disallow=*/true);
1055
1056 MultilibBuilder M32 = MultilibBuilder()
1057 .gccSuffix("/32")
1058 .flag("-m64", /*Disallow=*/true)
1059 .flag("-m32")
1060 .flag("-mabi=n32", /*Disallow=*/true);
1061
1062 DebianMipsMultilibs = MultilibSetBuilder()
1063 .Either(M32, M64, MAbiN32)
1064 .makeMultilibSet()
1065 .FilterOut(NonExistent);
1066 }
1067
1068 // Sort candidates. Toolchain that best meets the directories tree goes first.
1069 // Then select the first toolchains matches command line flags.
1070 MultilibSet *Candidates[] = {&CSMipsMultilibs, &DebianMipsMultilibs};
1071 if (CSMipsMultilibs.size() < DebianMipsMultilibs.size())
1072 std::iter_swap(Candidates, Candidates + 1);
1073 for (const MultilibSet *Candidate : Candidates) {
1074 if (Candidate->select(D, Flags, Result.SelectedMultilibs)) {
1075 if (Candidate == &DebianMipsMultilibs)
1076 Result.BiarchSibling = Multilib();
1077 Result.Multilibs = *Candidate;
1078 return true;
1079 }
1080 }
1081 return false;
1082}
1083
1084static bool findMipsMuslMultilibs(const Driver &D,
1085 const Multilib::flags_list &Flags,
1086 FilterNonExistent &NonExistent,
1087 DetectedMultilibs &Result) {
1088 // Musl toolchain multilibs
1089 MultilibSet MuslMipsMultilibs;
1090 {
1091 auto MArchMipsR2 = MultilibBuilder("")
1092 .osSuffix("/mips-r2-hard-musl")
1093 .flag("-EB")
1094 .flag("-EL", /*Disallow=*/true)
1095 .flag("-march=mips32r2");
1096
1097 auto MArchMipselR2 = MultilibBuilder("/mipsel-r2-hard-musl")
1098 .flag("-EB", /*Disallow=*/true)
1099 .flag("-EL")
1100 .flag("-march=mips32r2");
1101
1102 MuslMipsMultilibs = MultilibSetBuilder()
1103 .Either(MArchMipsR2, MArchMipselR2)
1104 .makeMultilibSet();
1105
1106 // Specify the callback that computes the include directories.
1107 MuslMipsMultilibs.setIncludeDirsCallback([](const Multilib &M) {
1108 return std::vector<std::string>(
1109 {"/../sysroot" + M.osSuffix() + "/usr/include"});
1110 });
1111 }
1112 if (MuslMipsMultilibs.select(D, Flags, Result.SelectedMultilibs)) {
1113 Result.Multilibs = std::move(MuslMipsMultilibs);
1114 return true;
1115 }
1116 return false;
1117}
1118
1119static bool findMipsMtiMultilibs(const Driver &D,
1120 const Multilib::flags_list &Flags,
1121 FilterNonExistent &NonExistent,
1122 DetectedMultilibs &Result) {
1123 // CodeScape MTI toolchain v1.2 and early.
1124 MultilibSet MtiMipsMultilibsV1;
1125 {
1126 auto MArchMips32 = MultilibBuilder("/mips32")
1127 .flag("-m32")
1128 .flag("-m64", /*Disallow=*/true)
1129 .flag("-mmicromips", /*Disallow=*/true)
1130 .flag("-march=mips32");
1131
1132 auto MArchMicroMips = MultilibBuilder("/micromips")
1133 .flag("-m32")
1134 .flag("-m64", /*Disallow=*/true)
1135 .flag("-mmicromips");
1136
1137 auto MArchMips64r2 = MultilibBuilder("/mips64r2")
1138 .flag("-m32", /*Disallow=*/true)
1139 .flag("-m64")
1140 .flag("-march=mips64r2");
1141
1142 auto MArchMips64 = MultilibBuilder("/mips64")
1143 .flag("-m32", /*Disallow=*/true)
1144 .flag("-m64")
1145 .flag("-march=mips64r2", /*Disallow=*/true);
1146
1147 auto MArchDefault = MultilibBuilder("")
1148 .flag("-m32")
1149 .flag("-m64", /*Disallow=*/true)
1150 .flag("-mmicromips", /*Disallow=*/true)
1151 .flag("-march=mips32r2");
1152
1153 auto Mips16 = MultilibBuilder("/mips16").flag("-mips16");
1154
1155 auto UCLibc = MultilibBuilder("/uclibc").flag("-muclibc");
1156
1157 auto MAbi64 = MultilibBuilder("/64")
1158 .flag("-mabi=n64")
1159 .flag("-mabi=n32", /*Disallow=*/true)
1160 .flag("-m32", /*Disallow=*/true);
1161
1162 auto BigEndian =
1163 MultilibBuilder("").flag("-EB").flag("-EL", /*Disallow=*/true);
1164
1165 auto LittleEndian =
1166 MultilibBuilder("/el").flag("-EL").flag("-EB", /*Disallow=*/true);
1167
1168 auto SoftFloat = MultilibBuilder("/sof").flag("-msoft-float");
1169
1170 auto Nan2008 = MultilibBuilder("/nan2008").flag("-mnan=2008");
1171
1172 MtiMipsMultilibsV1 =
1173 MultilibSetBuilder()
1174 .Either(MArchMips32, MArchMicroMips, MArchMips64r2, MArchMips64,
1175 MArchDefault)
1176 .Maybe(UCLibc)
1177 .Maybe(Mips16)
1178 .FilterOut("/mips64/mips16")
1179 .FilterOut("/mips64r2/mips16")
1180 .FilterOut("/micromips/mips16")
1181 .Maybe(MAbi64)
1182 .FilterOut("/micromips/64")
1183 .FilterOut("/mips32/64")
1184 .FilterOut("^/64")
1185 .FilterOut("/mips16/64")
1186 .Either(BigEndian, LittleEndian)
1187 .Maybe(SoftFloat)
1188 .Maybe(Nan2008)
1189 .FilterOut(".*sof/nan2008")
1190 .makeMultilibSet()
1191 .FilterOut(NonExistent)
1192 .setIncludeDirsCallback([](const Multilib &M) {
1193 std::vector<std::string> Dirs({"/include"});
1194 if (StringRef(M.includeSuffix()).starts_with("/uclibc"))
1195 Dirs.push_back("/../../../../sysroot/uclibc/usr/include");
1196 else
1197 Dirs.push_back("/../../../../sysroot/usr/include");
1198 return Dirs;
1199 });
1200 }
1201
1202 // CodeScape IMG toolchain starting from v1.3.
1203 MultilibSet MtiMipsMultilibsV2;
1204 {
1205 auto BeHard = MultilibBuilder("/mips-r2-hard")
1206 .flag("-EB")
1207 .flag("-msoft-float", /*Disallow=*/true)
1208 .flag("-mnan=2008", /*Disallow=*/true)
1209 .flag("-muclibc", /*Disallow=*/true);
1210 auto BeSoft = MultilibBuilder("/mips-r2-soft")
1211 .flag("-EB")
1212 .flag("-msoft-float")
1213 .flag("-mnan=2008", /*Disallow=*/true);
1214 auto ElHard = MultilibBuilder("/mipsel-r2-hard")
1215 .flag("-EL")
1216 .flag("-msoft-float", /*Disallow=*/true)
1217 .flag("-mnan=2008", /*Disallow=*/true)
1218 .flag("-muclibc", /*Disallow=*/true);
1219 auto ElSoft = MultilibBuilder("/mipsel-r2-soft")
1220 .flag("-EL")
1221 .flag("-msoft-float")
1222 .flag("-mnan=2008", /*Disallow=*/true)
1223 .flag("-mmicromips", /*Disallow=*/true);
1224 auto BeHardNan = MultilibBuilder("/mips-r2-hard-nan2008")
1225 .flag("-EB")
1226 .flag("-msoft-float", /*Disallow=*/true)
1227 .flag("-mnan=2008")
1228 .flag("-muclibc", /*Disallow=*/true);
1229 auto ElHardNan = MultilibBuilder("/mipsel-r2-hard-nan2008")
1230 .flag("-EL")
1231 .flag("-msoft-float", /*Disallow=*/true)
1232 .flag("-mnan=2008")
1233 .flag("-muclibc", /*Disallow=*/true)
1234 .flag("-mmicromips", /*Disallow=*/true);
1235 auto BeHardNanUclibc = MultilibBuilder("/mips-r2-hard-nan2008-uclibc")
1236 .flag("-EB")
1237 .flag("-msoft-float", /*Disallow=*/true)
1238 .flag("-mnan=2008")
1239 .flag("-muclibc");
1240 auto ElHardNanUclibc = MultilibBuilder("/mipsel-r2-hard-nan2008-uclibc")
1241 .flag("-EL")
1242 .flag("-msoft-float", /*Disallow=*/true)
1243 .flag("-mnan=2008")
1244 .flag("-muclibc");
1245 auto BeHardUclibc = MultilibBuilder("/mips-r2-hard-uclibc")
1246 .flag("-EB")
1247 .flag("-msoft-float", /*Disallow=*/true)
1248 .flag("-mnan=2008", /*Disallow=*/true)
1249 .flag("-muclibc");
1250 auto ElHardUclibc = MultilibBuilder("/mipsel-r2-hard-uclibc")
1251 .flag("-EL")
1252 .flag("-msoft-float", /*Disallow=*/true)
1253 .flag("-mnan=2008", /*Disallow=*/true)
1254 .flag("-muclibc");
1255 auto ElMicroHardNan = MultilibBuilder("/micromipsel-r2-hard-nan2008")
1256 .flag("-EL")
1257 .flag("-msoft-float", /*Disallow=*/true)
1258 .flag("-mnan=2008")
1259 .flag("-mmicromips");
1260 auto ElMicroSoft = MultilibBuilder("/micromipsel-r2-soft")
1261 .flag("-EL")
1262 .flag("-msoft-float")
1263 .flag("-mnan=2008", /*Disallow=*/true)
1264 .flag("-mmicromips");
1265
1266 auto O32 = MultilibBuilder("/lib")
1267 .osSuffix("")
1268 .flag("-mabi=n32", /*Disallow=*/true)
1269 .flag("-mabi=n64", /*Disallow=*/true);
1270 auto N32 = MultilibBuilder("/lib32")
1271 .osSuffix("")
1272 .flag("-mabi=n32")
1273 .flag("-mabi=n64", /*Disallow=*/true);
1274 auto N64 = MultilibBuilder("/lib64")
1275 .osSuffix("")
1276 .flag("-mabi=n32", /*Disallow=*/true)
1277 .flag("-mabi=n64");
1278
1279 MtiMipsMultilibsV2 =
1280 MultilibSetBuilder()
1281 .Either({BeHard, BeSoft, ElHard, ElSoft, BeHardNan, ElHardNan,
1282 BeHardNanUclibc, ElHardNanUclibc, BeHardUclibc,
1283 ElHardUclibc, ElMicroHardNan, ElMicroSoft})
1284 .Either(O32, N32, N64)
1285 .makeMultilibSet()
1286 .FilterOut(NonExistent)
1287 .setIncludeDirsCallback([](const Multilib &M) {
1288 return std::vector<std::string>({"/../../../../sysroot" +
1289 M.includeSuffix() +
1290 "/../usr/include"});
1291 })
1292 .setFilePathsCallback([](const Multilib &M) {
1293 return std::vector<std::string>(
1294 {"/../../../../mips-mti-linux-gnu/lib" + M.gccSuffix()});
1295 });
1296 }
1297 for (auto *Candidate : {&MtiMipsMultilibsV1, &MtiMipsMultilibsV2}) {
1298 if (Candidate->select(D, Flags, Result.SelectedMultilibs)) {
1299 Result.Multilibs = *Candidate;
1300 return true;
1301 }
1302 }
1303 return false;
1304}
1305
1306static bool findMipsImgMultilibs(const Driver &D,
1307 const Multilib::flags_list &Flags,
1308 FilterNonExistent &NonExistent,
1309 DetectedMultilibs &Result) {
1310 // CodeScape IMG toolchain v1.2 and early.
1311 MultilibSet ImgMultilibsV1;
1312 {
1313 auto Mips64r6 = MultilibBuilder("/mips64r6")
1314 .flag("-m64")
1315 .flag("-m32", /*Disallow=*/true);
1316
1317 auto LittleEndian =
1318 MultilibBuilder("/el").flag("-EL").flag("-EB", /*Disallow=*/true);
1319
1320 auto MAbi64 = MultilibBuilder("/64")
1321 .flag("-mabi=n64")
1322 .flag("-mabi=n32", /*Disallow=*/true)
1323 .flag("-m32", /*Disallow=*/true);
1324
1325 ImgMultilibsV1 =
1326 MultilibSetBuilder()
1327 .Maybe(Mips64r6)
1328 .Maybe(MAbi64)
1329 .Maybe(LittleEndian)
1330 .makeMultilibSet()
1331 .FilterOut(NonExistent)
1332 .setIncludeDirsCallback([](const Multilib &M) {
1333 return std::vector<std::string>(
1334 {"/include", "/../../../../sysroot/usr/include"});
1335 });
1336 }
1337
1338 // CodeScape IMG toolchain starting from v1.3.
1339 MultilibSet ImgMultilibsV2;
1340 {
1341 auto BeHard = MultilibBuilder("/mips-r6-hard")
1342 .flag("-EB")
1343 .flag("-msoft-float", /*Disallow=*/true)
1344 .flag("-mmicromips", /*Disallow=*/true);
1345 auto BeSoft = MultilibBuilder("/mips-r6-soft")
1346 .flag("-EB")
1347 .flag("-msoft-float")
1348 .flag("-mmicromips", /*Disallow=*/true);
1349 auto ElHard = MultilibBuilder("/mipsel-r6-hard")
1350 .flag("-EL")
1351 .flag("-msoft-float", /*Disallow=*/true)
1352 .flag("-mmicromips", /*Disallow=*/true);
1353 auto ElSoft = MultilibBuilder("/mipsel-r6-soft")
1354 .flag("-EL")
1355 .flag("-msoft-float")
1356 .flag("-mmicromips", /*Disallow=*/true);
1357 auto BeMicroHard = MultilibBuilder("/micromips-r6-hard")
1358 .flag("-EB")
1359 .flag("-msoft-float", /*Disallow=*/true)
1360 .flag("-mmicromips");
1361 auto BeMicroSoft = MultilibBuilder("/micromips-r6-soft")
1362 .flag("-EB")
1363 .flag("-msoft-float")
1364 .flag("-mmicromips");
1365 auto ElMicroHard = MultilibBuilder("/micromipsel-r6-hard")
1366 .flag("-EL")
1367 .flag("-msoft-float", /*Disallow=*/true)
1368 .flag("-mmicromips");
1369 auto ElMicroSoft = MultilibBuilder("/micromipsel-r6-soft")
1370 .flag("-EL")
1371 .flag("-msoft-float")
1372 .flag("-mmicromips");
1373
1374 auto O32 = MultilibBuilder("/lib")
1375 .osSuffix("")
1376 .flag("-mabi=n32", /*Disallow=*/true)
1377 .flag("-mabi=n64", /*Disallow=*/true);
1378 auto N32 = MultilibBuilder("/lib32")
1379 .osSuffix("")
1380 .flag("-mabi=n32")
1381 .flag("-mabi=n64", /*Disallow=*/true);
1382 auto N64 = MultilibBuilder("/lib64")
1383 .osSuffix("")
1384 .flag("-mabi=n32", /*Disallow=*/true)
1385 .flag("-mabi=n64");
1386
1387 ImgMultilibsV2 =
1388 MultilibSetBuilder()
1389 .Either({BeHard, BeSoft, ElHard, ElSoft, BeMicroHard, BeMicroSoft,
1390 ElMicroHard, ElMicroSoft})
1391 .Either(O32, N32, N64)
1392 .makeMultilibSet()
1393 .FilterOut(NonExistent)
1394 .setIncludeDirsCallback([](const Multilib &M) {
1395 return std::vector<std::string>({"/../../../../sysroot" +
1396 M.includeSuffix() +
1397 "/../usr/include"});
1398 })
1399 .setFilePathsCallback([](const Multilib &M) {
1400 return std::vector<std::string>(
1401 {"/../../../../mips-img-linux-gnu/lib" + M.gccSuffix()});
1402 });
1403 }
1404 for (auto *Candidate : {&ImgMultilibsV1, &ImgMultilibsV2}) {
1405 if (Candidate->select(D, Flags, Result.SelectedMultilibs)) {
1406 Result.Multilibs = *Candidate;
1407 return true;
1408 }
1409 }
1410 return false;
1411}
1412
1413bool clang::driver::findMIPSMultilibs(const Driver &D,
1414 const llvm::Triple &TargetTriple,
1415 StringRef Path, const ArgList &Args,
1416 DetectedMultilibs &Result) {
1417 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1418
1419 StringRef CPUName;
1420 StringRef ABIName;
1421 tools::mips::getMipsCPUAndABI(Args, TargetTriple, CPUName, ABIName);
1422
1423 llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
1424
1425 Multilib::flags_list Flags;
1426 addMultilibFlag(TargetTriple.isMIPS32(), "-m32", Flags);
1427 addMultilibFlag(TargetTriple.isMIPS64(), "-m64", Flags);
1428 addMultilibFlag(isMips16(Args), "-mips16", Flags);
1429 addMultilibFlag(CPUName == "mips32", "-march=mips32", Flags);
1430 addMultilibFlag(CPUName == "mips32r2" || CPUName == "mips32r3" ||
1431 CPUName == "mips32r5" || CPUName == "p5600",
1432 "-march=mips32r2", Flags);
1433 addMultilibFlag(CPUName == "mips32r6", "-march=mips32r6", Flags);
1434 addMultilibFlag(CPUName == "mips64", "-march=mips64", Flags);
1435 addMultilibFlag(CPUName == "mips64r2" || CPUName == "mips64r3" ||
1436 CPUName == "mips64r5" || CPUName == "octeon" ||
1437 CPUName == "octeon+",
1438 "-march=mips64r2", Flags);
1439 addMultilibFlag(CPUName == "mips64r6" || CPUName == "i6400" ||
1440 CPUName == "i6500",
1441 "-march=mips64r6", Flags);
1442 addMultilibFlag(isMicroMips(Args), "-mmicromips", Flags);
1443 addMultilibFlag(tools::mips::isUCLibc(Args), "-muclibc", Flags);
1444 addMultilibFlag(tools::mips::isNaN2008(D, Args, TargetTriple), "-mnan=2008",
1445 Flags);
1446 addMultilibFlag(ABIName == "n32", "-mabi=n32", Flags);
1447 addMultilibFlag(ABIName == "n64", "-mabi=n64", Flags);
1448 addMultilibFlag(isSoftFloatABI(Args), "-msoft-float", Flags);
1449 addMultilibFlag(!isSoftFloatABI(Args), "-mhard-float", Flags);
1450 addMultilibFlag(isMipsEL(TargetArch), "-EL", Flags);
1451 addMultilibFlag(!isMipsEL(TargetArch), "-EB", Flags);
1452
1453 if (TargetTriple.getVendor() == llvm::Triple::MipsTechnologies &&
1454 TargetTriple.getOS() == llvm::Triple::Linux &&
1455 TargetTriple.getEnvironment() == llvm::Triple::UnknownEnvironment)
1456 return findMipsMuslMultilibs(D, Flags, NonExistent, Result);
1457
1458 if (TargetTriple.getVendor() == llvm::Triple::MipsTechnologies &&
1459 TargetTriple.getOS() == llvm::Triple::Linux &&
1460 TargetTriple.isGNUEnvironment())
1461 return findMipsMtiMultilibs(D, Flags, NonExistent, Result);
1462
1463 if (TargetTriple.getVendor() == llvm::Triple::ImaginationTechnologies &&
1464 TargetTriple.getOS() == llvm::Triple::Linux &&
1465 TargetTriple.isGNUEnvironment())
1466 return findMipsImgMultilibs(D, Flags, NonExistent, Result);
1467
1468 if (findMipsCsMultilibs(D, Flags, NonExistent, Result))
1469 return true;
1470
1471 // Fallback to the regular toolchain-tree structure.
1472 Multilib Default;
1473 Result.Multilibs.push_back(Default);
1474 Result.Multilibs.FilterOut(NonExistent);
1475
1476 if (Result.Multilibs.select(D, Flags, Result.SelectedMultilibs)) {
1477 Result.BiarchSibling = Multilib();
1478 return true;
1479 }
1480
1481 return false;
1482}
1483
1484static void findAndroidArmMultilibs(const Driver &D,
1485 const llvm::Triple &TargetTriple,
1486 StringRef Path, const ArgList &Args,
1487 DetectedMultilibs &Result) {
1488 // Find multilibs with subdirectories like armv7-a, thumb, armv7-a/thumb.
1489 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1490 MultilibBuilder ArmV7Multilib = MultilibBuilder("/armv7-a")
1491 .flag("-march=armv7-a")
1492 .flag("-mthumb", /*Disallow=*/true);
1493 MultilibBuilder ThumbMultilib = MultilibBuilder("/thumb")
1494 .flag("-march=armv7-a", /*Disallow=*/true)
1495 .flag("-mthumb");
1496 MultilibBuilder ArmV7ThumbMultilib =
1497 MultilibBuilder("/armv7-a/thumb").flag("-march=armv7-a").flag("-mthumb");
1498 MultilibBuilder DefaultMultilib =
1499 MultilibBuilder("")
1500 .flag("-march=armv7-a", /*Disallow=*/true)
1501 .flag("-mthumb", /*Disallow=*/true);
1502 MultilibSet AndroidArmMultilibs =
1503 MultilibSetBuilder()
1504 .Either(ThumbMultilib, ArmV7Multilib, ArmV7ThumbMultilib,
1505 DefaultMultilib)
1506 .makeMultilibSet()
1507 .FilterOut(NonExistent);
1508
1509 Multilib::flags_list Flags;
1510 llvm::StringRef Arch = Args.getLastArgValue(options::OPT_march_EQ);
1511 bool IsArmArch = TargetTriple.getArch() == llvm::Triple::arm;
1512 bool IsThumbArch = TargetTriple.getArch() == llvm::Triple::thumb;
1513 bool IsV7SubArch = TargetTriple.getSubArch() == llvm::Triple::ARMSubArch_v7;
1514 bool IsThumbMode = IsThumbArch ||
1515 Args.hasFlag(options::OPT_mthumb, options::OPT_mno_thumb, false) ||
1516 (IsArmArch && llvm::ARM::parseArchISA(Arch) == llvm::ARM::ISAKind::THUMB);
1517 bool IsArmV7Mode = (IsArmArch || IsThumbArch) &&
1518 (llvm::ARM::parseArchVersion(Arch) == 7 ||
1519 (IsArmArch && Arch == "" && IsV7SubArch));
1520 addMultilibFlag(IsArmV7Mode, "-march=armv7-a", Flags);
1521 addMultilibFlag(IsThumbMode, "-mthumb", Flags);
1522
1523 if (AndroidArmMultilibs.select(D, Flags, Result.SelectedMultilibs))
1524 Result.Multilibs = std::move(AndroidArmMultilibs);
1525}
1526
1527static bool findMSP430Multilibs(const Driver &D,
1528 const llvm::Triple &TargetTriple,
1529 StringRef Path, const ArgList &Args,
1530 DetectedMultilibs &Result) {
1531 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1532 MultilibBuilder WithoutExceptions =
1533 MultilibBuilder("/430").flag("-exceptions", /*Disallow=*/true);
1534 MultilibBuilder WithExceptions =
1535 MultilibBuilder("/430/exceptions").flag("-exceptions");
1536
1537 // FIXME: when clang starts to support msp430x ISA additional logic
1538 // to select between multilib must be implemented
1539 // MultilibBuilder MSP430xMultilib = MultilibBuilder("/large");
1540
1541 Result.Multilibs.push_back(WithoutExceptions.makeMultilib());
1542 Result.Multilibs.push_back(WithExceptions.makeMultilib());
1543 Result.Multilibs.FilterOut(NonExistent);
1544
1545 Multilib::flags_list Flags;
1546 addMultilibFlag(Args.hasFlag(options::OPT_fexceptions,
1547 options::OPT_fno_exceptions, false),
1548 "-exceptions", Flags);
1549 if (Result.Multilibs.select(D, Flags, Result.SelectedMultilibs))
1550 return true;
1551
1552 return false;
1553}
1554
1555static void findCSKYMultilibs(const Driver &D, const llvm::Triple &TargetTriple,
1556 StringRef Path, const ArgList &Args,
1557 DetectedMultilibs &Result) {
1558 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1559
1560 tools::csky::FloatABI TheFloatABI = tools::csky::getCSKYFloatABI(D, Args);
1561 std::optional<llvm::StringRef> Res =
1562 tools::csky::getCSKYArchName(D, Args, TargetTriple);
1563
1564 if (!Res)
1565 return;
1566 auto ARCHName = *Res;
1567
1568 Multilib::flags_list Flags;
1569 addMultilibFlag(TheFloatABI == tools::csky::FloatABI::Hard, "-hard-fp",
1570 Flags);
1571 addMultilibFlag(TheFloatABI == tools::csky::FloatABI::SoftFP, "-soft-fp",
1572 Flags);
1573 addMultilibFlag(TheFloatABI == tools::csky::FloatABI::Soft, "-soft", Flags);
1574 addMultilibFlag(ARCHName == "ck801", "-march=ck801", Flags);
1575 addMultilibFlag(ARCHName == "ck802", "-march=ck802", Flags);
1576 addMultilibFlag(ARCHName == "ck803", "-march=ck803", Flags);
1577 addMultilibFlag(ARCHName == "ck804", "-march=ck804", Flags);
1578 addMultilibFlag(ARCHName == "ck805", "-march=ck805", Flags);
1579 addMultilibFlag(ARCHName == "ck807", "-march=ck807", Flags);
1580 addMultilibFlag(ARCHName == "ck810", "-march=ck810", Flags);
1581 addMultilibFlag(ARCHName == "ck810v", "-march=ck810v", Flags);
1582 addMultilibFlag(ARCHName == "ck860", "-march=ck860", Flags);
1583 addMultilibFlag(ARCHName == "ck860v", "-march=ck860v", Flags);
1584
1585 bool isBigEndian = false;
1586 if (Arg *A = Args.getLastArg(options::OPT_mlittle_endian,
1587 options::OPT_mbig_endian))
1588 isBigEndian = !A->getOption().matches(options::OPT_mlittle_endian);
1589 addMultilibFlag(isBigEndian, "-EB", Flags);
1590
1591 auto HardFloat = MultilibBuilder("/hard-fp").flag("-hard-fp");
1592 auto SoftFpFloat = MultilibBuilder("/soft-fp").flag("-soft-fp");
1593 auto SoftFloat = MultilibBuilder("").flag("-soft");
1594 auto Arch801 = MultilibBuilder("/ck801").flag("-march=ck801");
1595 auto Arch802 = MultilibBuilder("/ck802").flag("-march=ck802");
1596 auto Arch803 = MultilibBuilder("/ck803").flag("-march=ck803");
1597 // CK804 use the same library as CK803
1598 auto Arch804 = MultilibBuilder("/ck803").flag("-march=ck804");
1599 auto Arch805 = MultilibBuilder("/ck805").flag("-march=ck805");
1600 auto Arch807 = MultilibBuilder("/ck807").flag("-march=ck807");
1601 auto Arch810 = MultilibBuilder("").flag("-march=ck810");
1602 auto Arch810v = MultilibBuilder("/ck810v").flag("-march=ck810v");
1603 auto Arch860 = MultilibBuilder("/ck860").flag("-march=ck860");
1604 auto Arch860v = MultilibBuilder("/ck860v").flag("-march=ck860v");
1605 auto BigEndian = MultilibBuilder("/big").flag("-EB");
1606
1607 MultilibSet CSKYMultilibs =
1608 MultilibSetBuilder()
1609 .Maybe(BigEndian)
1610 .Either({Arch801, Arch802, Arch803, Arch804, Arch805, Arch807,
1611 Arch810, Arch810v, Arch860, Arch860v})
1612 .Either(HardFloat, SoftFpFloat, SoftFloat)
1613 .makeMultilibSet()
1614 .FilterOut(NonExistent);
1615
1616 if (CSKYMultilibs.select(D, Flags, Result.SelectedMultilibs))
1617 Result.Multilibs = std::move(CSKYMultilibs);
1618}
1619
1620/// Extend the multi-lib re-use selection mechanism for RISC-V.
1621/// This function will try to re-use multi-lib if they are compatible.
1622/// Definition of compatible:
1623/// - ABI must be the same.
1624/// - multi-lib is a subset of current arch, e.g. multi-lib=march=rv32im
1625/// is a subset of march=rv32imc.
1626/// - march that contains atomic extension can't reuse multi-lib that
1627/// doesn't have atomic, vice versa. e.g. multi-lib=march=rv32im and
1628/// march=rv32ima are not compatible, because software and hardware
1629/// atomic operation can't work together correctly.
1630static bool
1631selectRISCVMultilib(const Driver &D, const MultilibSet &RISCVMultilibSet,
1632 const Multilib::flags_list &Flags,
1633 llvm::SmallVectorImpl<Multilib> &SelectedMultilibs) {
1634 // Try to find the perfect matching multi-lib first.
1635 if (RISCVMultilibSet.select(D, Flags, SelectedMultilibs))
1636 return true;
1637
1638 Multilib::flags_list NewFlags;
1639 std::vector<MultilibBuilder> NewMultilibs;
1640
1641 // Collect all flags and extract Arch from march
1642 StringRef Arch;
1643 for (StringRef Flag : Flags) {
1644 if (Flag.consume_front("-march=")) {
1645 Arch = Flag;
1646 continue;
1647 }
1648
1649 NewFlags.push_back(Flag.str());
1650 }
1651
1652 llvm::Expected<std::unique_ptr<llvm::RISCVISAInfo>> ParseResult =
1653 llvm::RISCVISAInfo::parseArchString(
1654 Arch, /*EnableExperimentalExtension=*/true,
1655 /*ExperimentalExtensionVersionCheck=*/false);
1656 // Ignore any error here, we assume it will be handled in another place.
1657 if (llvm::errorToBool(ParseResult.takeError()))
1658 return false;
1659
1660 auto &ISAInfo = *ParseResult;
1661
1662 addMultilibFlag(ISAInfo->getXLen() == 32, "-m32", NewFlags);
1663 addMultilibFlag(ISAInfo->getXLen() == 64, "-m64", NewFlags);
1664
1665 llvm::StringSet<> AllArchExts;
1666 // Reconstruct multi-lib list, and break march option into separated
1667 // extension. e.g. march=rv32im -> +i +m
1668 for (const auto &M : RISCVMultilibSet) {
1669 bool Skip = false;
1670
1671 MultilibBuilder NewMultilib =
1672 MultilibBuilder(M.gccSuffix(), M.osSuffix(), M.includeSuffix());
1673 for (StringRef Flag : M.flags()) {
1674 // Add back all flags except -march.
1675 if (!Flag.consume_front("-march=")) {
1676 NewMultilib.flag(Flag);
1677 continue;
1678 }
1679
1680 // Break down -march into individual extension.
1681 llvm::Expected<std::unique_ptr<llvm::RISCVISAInfo>> MLConfigParseResult =
1682 llvm::RISCVISAInfo::parseArchString(
1683 Flag, /*EnableExperimentalExtension=*/true,
1684 /*ExperimentalExtensionVersionCheck=*/false);
1685 // Ignore any error here, we assume it will handled in another place.
1686 if (llvm::errorToBool(MLConfigParseResult.takeError())) {
1687 // We might get a parsing error if rv32e in the list, we could just skip
1688 // that and process the rest of multi-lib configs.
1689 Skip = true;
1690 continue;
1691 }
1692 auto &MLConfigISAInfo = *MLConfigParseResult;
1693
1694 for (auto &MLConfigArchExt : MLConfigISAInfo->getExtensions()) {
1695 auto ExtName = MLConfigArchExt.first;
1696 NewMultilib.flag(Twine("-", ExtName).str());
1697
1698 if (AllArchExts.insert(ExtName).second) {
1699 addMultilibFlag(ISAInfo->hasExtension(ExtName),
1700 Twine("-", ExtName).str(), NewFlags);
1701 }
1702 }
1703
1704 // Check the XLEN explicitly.
1705 if (MLConfigISAInfo->getXLen() == 32) {
1706 NewMultilib.flag("-m32");
1707 NewMultilib.flag("-m64", /*Disallow*/ true);
1708 } else {
1709 NewMultilib.flag("-m32", /*Disallow*/ true);
1710 NewMultilib.flag("-m64");
1711 }
1712
1713 // Atomic extension must be explicitly checked, soft and hard atomic
1714 // operation never co-work correctly.
1715 if (!MLConfigISAInfo->hasExtension("a"))
1716 NewMultilib.flag("-a", /*Disallow*/ true);
1717 }
1718
1719 if (Skip)
1720 continue;
1721
1722 NewMultilibs.emplace_back(NewMultilib);
1723 }
1724
1725 // Build an internal used only multi-lib list, used for checking any
1726 // compatible multi-lib.
1727 MultilibSet NewRISCVMultilibs =
1728 MultilibSetBuilder().Either(NewMultilibs).makeMultilibSet();
1729
1730 if (NewRISCVMultilibs.select(D, NewFlags, SelectedMultilibs))
1731 for (const Multilib &NewSelectedM : SelectedMultilibs)
1732 for (const auto &M : RISCVMultilibSet)
1733 // Look up the corresponding multi-lib entry in original multi-lib set.
1734 if (M.gccSuffix() == NewSelectedM.gccSuffix())
1735 return true;
1736
1737 return false;
1738}
1739
1740static void findRISCVBareMetalMultilibs(const Driver &D,
1741 const llvm::Triple &TargetTriple,
1742 StringRef Path, const ArgList &Args,
1743 DetectedMultilibs &Result) {
1744 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1745 struct RiscvMultilib {
1746 StringRef march;
1747 StringRef mabi;
1748 };
1749 // currently only support the set of multilibs like riscv-gnu-toolchain does.
1750 // TODO: support MULTILIB_REUSE
1751 constexpr RiscvMultilib RISCVMultilibSet[] = {
1752 {"rv32i", "ilp32"}, {"rv32im", "ilp32"}, {"rv32iac", "ilp32"},
1753 {"rv32imac", "ilp32"}, {"rv32imafc", "ilp32f"}, {"rv64imac", "lp64"},
1754 {"rv64imafdc", "lp64d"}};
1755
1756 std::vector<MultilibBuilder> Ms;
1757 for (auto Element : RISCVMultilibSet) {
1758 // multilib path rule is ${march}/${mabi}
1759 Ms.emplace_back(
1760 MultilibBuilder(
1761 (Twine(Element.march) + "/" + Twine(Element.mabi)).str())
1762 .flag(Twine("-march=", Element.march).str())
1763 .flag(Twine("-mabi=", Element.mabi).str()));
1764 }
1765
1766 StringRef EndiannessSuffix = TargetTriple.isLittleEndian() ? "" : "be";
1767 MultilibSet RISCVMultilibs =
1768 MultilibSetBuilder()
1769 .Either(Ms)
1770 .makeMultilibSet()
1771 .FilterOut(NonExistent)
1772 .setFilePathsCallback([EndiannessSuffix](const Multilib &M) {
1773 return std::vector<std::string>(
1774 {M.gccSuffix(),
1775 "/../../../../riscv64" + EndiannessSuffix.str() +
1776 "-unknown-elf/lib" + M.gccSuffix(),
1777 "/../../../../riscv32" + EndiannessSuffix.str() +
1778 "-unknown-elf/lib" + M.gccSuffix()});
1779 });
1780
1781 Multilib::flags_list Flags;
1782 StringRef ABIName = tools::riscv::getRISCVABI(Args, TargetTriple);
1783 std::string MArch = tools::riscv::getRISCVArch(Args, TargetTriple);
1784 Flags.push_back("-march=" + MArch);
1785 Flags.push_back("-mabi=" + ABIName.str());
1786
1787 if (selectRISCVMultilib(D, RISCVMultilibs, Flags, Result.SelectedMultilibs))
1788 Result.Multilibs = std::move(RISCVMultilibs);
1789}
1790
1791static void findRISCVMultilibs(const Driver &D,
1792 const llvm::Triple &TargetTriple, StringRef Path,
1793 const ArgList &Args, DetectedMultilibs &Result) {
1794 if (TargetTriple.getOS() == llvm::Triple::UnknownOS)
1795 return findRISCVBareMetalMultilibs(D, TargetTriple, Path, Args, Result);
1796
1797 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1798 MultilibBuilder Ilp32 =
1799 MultilibBuilder("lib32/ilp32").flag("-m32").flag("-mabi=ilp32");
1800 MultilibBuilder Ilp32f =
1801 MultilibBuilder("lib32/ilp32f").flag("-m32").flag("-mabi=ilp32f");
1802 MultilibBuilder Ilp32d =
1803 MultilibBuilder("lib32/ilp32d").flag("-m32").flag("-mabi=ilp32d");
1804 MultilibBuilder Lp64 =
1805 MultilibBuilder("lib64/lp64").flag("-m64").flag("-mabi=lp64");
1806 MultilibBuilder Lp64f =
1807 MultilibBuilder("lib64/lp64f").flag("-m64").flag("-mabi=lp64f");
1808 MultilibBuilder Lp64d =
1809 MultilibBuilder("lib64/lp64d").flag("-m64").flag("-mabi=lp64d");
1810 MultilibSet RISCVMultilibs =
1811 MultilibSetBuilder()
1812 .Either({Ilp32, Ilp32f, Ilp32d, Lp64, Lp64f, Lp64d})
1813 .makeMultilibSet()
1814 .FilterOut(NonExistent);
1815
1816 Multilib::flags_list Flags;
1817 bool IsRV64 = TargetTriple.isRISCV64();
1818 StringRef ABIName = tools::riscv::getRISCVABI(Args, TargetTriple);
1819
1820 addMultilibFlag(!IsRV64, "-m32", Flags);
1821 addMultilibFlag(IsRV64, "-m64", Flags);
1822 addMultilibFlag(ABIName == "ilp32", "-mabi=ilp32", Flags);
1823 addMultilibFlag(ABIName == "ilp32f", "-mabi=ilp32f", Flags);
1824 addMultilibFlag(ABIName == "ilp32d", "-mabi=ilp32d", Flags);
1825 addMultilibFlag(ABIName == "lp64", "-mabi=lp64", Flags);
1826 addMultilibFlag(ABIName == "lp64f", "-mabi=lp64f", Flags);
1827 addMultilibFlag(ABIName == "lp64d", "-mabi=lp64d", Flags);
1828
1829 if (RISCVMultilibs.select(D, Flags, Result.SelectedMultilibs))
1830 Result.Multilibs = std::move(RISCVMultilibs);
1831}
1832
1833static bool findBiarchMultilibs(const Driver &D,
1834 const llvm::Triple &TargetTriple,
1835 StringRef Path, const ArgList &Args,
1836 bool NeedsBiarchSuffix,
1837 DetectedMultilibs &Result) {
1838 MultilibBuilder DefaultBuilder;
1839
1840 // Some versions of SUSE and Fedora on ppc64 put 32-bit libs
1841 // in what would normally be GCCInstallPath and put the 64-bit
1842 // libs in a subdirectory named 64. The simple logic we follow is that
1843 // *if* there is a subdirectory of the right name with crtbegin.o in it,
1844 // we use that. If not, and if not a biarch triple alias, we look for
1845 // crtbegin.o without the subdirectory.
1846
1847 StringRef Suff64 = "/64";
1848 // Solaris uses platform-specific suffixes instead of /64.
1849 if (TargetTriple.isOSSolaris()) {
1850 switch (TargetTriple.getArch()) {
1851 case llvm::Triple::x86:
1852 case llvm::Triple::x86_64:
1853 Suff64 = "/amd64";
1854 break;
1855 case llvm::Triple::sparc:
1856 case llvm::Triple::sparcv9:
1857 Suff64 = "/sparcv9";
1858 break;
1859 default:
1860 break;
1861 }
1862 }
1863
1864 Multilib Alt64 = MultilibBuilder()
1865 .gccSuffix(Suff64)
1866 .includeSuffix(Suff64)
1867 .flag("-m32", /*Disallow=*/true)
1868 .flag("-m64")
1869 .flag("-mx32", /*Disallow=*/true)
1870 .makeMultilib();
1871 Multilib Alt32 = MultilibBuilder()
1872 .gccSuffix("/32")
1873 .includeSuffix("/32")
1874 .flag("-m32")
1875 .flag("-m64", /*Disallow=*/true)
1876 .flag("-mx32", /*Disallow=*/true)
1877 .makeMultilib();
1878 Multilib Altx32 = MultilibBuilder()
1879 .gccSuffix("/x32")
1880 .includeSuffix("/x32")
1881 .flag("-m32", /*Disallow=*/true)
1882 .flag("-m64", /*Disallow=*/true)
1883 .flag("-mx32")
1884 .makeMultilib();
1885 Multilib Alt32sparc = MultilibBuilder()
1886 .gccSuffix("/sparcv8plus")
1887 .includeSuffix("/sparcv8plus")
1888 .flag("-m32")
1889 .flag("-m64", /*Disallow=*/true)
1890 .makeMultilib();
1891
1892 // GCC toolchain for IAMCU doesn't have crtbegin.o, so look for libgcc.a.
1893 FilterNonExistent NonExistent(
1894 Path, TargetTriple.isOSIAMCU() ? "/libgcc.a" : "/crtbegin.o", D.getVFS());
1895
1896 // Determine default multilib from: 32, 64, x32
1897 // Also handle cases such as 64 on 32, 32 on 64, etc.
1898 enum { UNKNOWN, WANT32, WANT64, WANTX32 } Want = UNKNOWN;
1899 const bool IsX32 = TargetTriple.isX32();
1900 if (TargetTriple.isArch32Bit() && !NonExistent(Alt32))
1901 Want = WANT64;
1902 if (TargetTriple.isArch32Bit() && !NonExistent(Alt32sparc))
1903 Want = WANT64;
1904 else if (TargetTriple.isArch64Bit() && IsX32 && !NonExistent(Altx32))
1905 Want = WANT64;
1906 else if (TargetTriple.isArch64Bit() && !IsX32 && !NonExistent(Alt64))
1907 Want = WANT32;
1908 else if (TargetTriple.isArch64Bit() && !NonExistent(Alt32sparc))
1909 Want = WANT64;
1910 else {
1911 if (TargetTriple.isArch32Bit())
1912 Want = NeedsBiarchSuffix ? WANT64 : WANT32;
1913 else if (IsX32)
1914 Want = NeedsBiarchSuffix ? WANT64 : WANTX32;
1915 else
1916 Want = NeedsBiarchSuffix ? WANT32 : WANT64;
1917 }
1918
1919 if (Want == WANT32)
1920 DefaultBuilder.flag("-m32")
1921 .flag("-m64", /*Disallow=*/true)
1922 .flag("-mx32", /*Disallow=*/true);
1923 else if (Want == WANT64)
1924 DefaultBuilder.flag("-m32", /*Disallow=*/true)
1925 .flag("-m64")
1926 .flag("-mx32", /*Disallow=*/true);
1927 else if (Want == WANTX32)
1928 DefaultBuilder.flag("-m32", /*Disallow=*/true)
1929 .flag("-m64", /*Disallow=*/true)
1930 .flag("-mx32");
1931 else
1932 return false;
1933
1934 Multilib Default = DefaultBuilder.makeMultilib();
1935
1936 Result.Multilibs.push_back(Default);
1937 Result.Multilibs.push_back(Alt64);
1938 Result.Multilibs.push_back(Alt32);
1939 Result.Multilibs.push_back(Altx32);
1940 Result.Multilibs.push_back(Alt32sparc);
1941
1942 Result.Multilibs.FilterOut(NonExistent);
1943
1944 Multilib::flags_list Flags;
1945 addMultilibFlag(TargetTriple.isArch64Bit() && !IsX32, "-m64", Flags);
1946 addMultilibFlag(TargetTriple.isArch32Bit(), "-m32", Flags);
1947 addMultilibFlag(TargetTriple.isArch64Bit() && IsX32, "-mx32", Flags);
1948
1949 if (!Result.Multilibs.select(D, Flags, Result.SelectedMultilibs))
1950 return false;
1951
1952 if (Result.SelectedMultilibs.back() == Alt64 ||
1953 Result.SelectedMultilibs.back() == Alt32 ||
1954 Result.SelectedMultilibs.back() == Altx32 ||
1955 Result.SelectedMultilibs.back() == Alt32sparc)
1956 Result.BiarchSibling = Default;
1957
1958 return true;
1959}
1960
1961/// Generic_GCC - A tool chain using the 'gcc' command to perform
1962/// all subcommands; this relies on gcc translating the majority of
1963/// command line options.
1964
1965/// Less-than for GCCVersion, implementing a Strict Weak Ordering.
1966bool Generic_GCC::GCCVersion::isOlderThan(int RHSMajor, int RHSMinor,
1967 int RHSPatch,
1968 StringRef RHSPatchSuffix) const {
1969 if (Major != RHSMajor)
1970 return Major < RHSMajor;
1971 if (Minor != RHSMinor) {
1972 // Note that versions without a specified minor sort higher than those with
1973 // a minor.
1974 if (RHSMinor == -1)
1975 return true;
1976 if (Minor == -1)
1977 return false;
1978 return Minor < RHSMinor;
1979 }
1980 if (Patch != RHSPatch) {
1981 // Note that versions without a specified patch sort higher than those with
1982 // a patch.
1983 if (RHSPatch == -1)
1984 return true;
1985 if (Patch == -1)
1986 return false;
1987
1988 // Otherwise just sort on the patch itself.
1989 return Patch < RHSPatch;
1990 }
1991 if (PatchSuffix != RHSPatchSuffix) {
1992 // Sort empty suffixes higher.
1993 if (RHSPatchSuffix.empty())
1994 return true;
1995 if (PatchSuffix.empty())
1996 return false;
1997
1998 // Provide a lexicographic sort to make this a total ordering.
1999 return PatchSuffix < RHSPatchSuffix;
2000 }
2001
2002 // The versions are equal.
2003 return false;
2004}
2005
2006/// Parse a GCCVersion object out of a string of text.
2007///
2008/// This is the primary means of forming GCCVersion objects.
2009/*static*/
2010Generic_GCC::GCCVersion Generic_GCC::GCCVersion::Parse(StringRef VersionText) {
2011 const GCCVersion BadVersion = {VersionText.str(), -1, -1, -1, "", "", ""};
2012 std::pair<StringRef, StringRef> First = VersionText.split('.');
2013 std::pair<StringRef, StringRef> Second = First.second.split('.');
2014
2015 StringRef MajorStr = First.first;
2016 StringRef MinorStr = Second.first;
2017 StringRef PatchStr = Second.second;
2018
2019 GCCVersion GoodVersion = {VersionText.str(), -1, -1, -1, "", "", ""};
2020
2021 // Parse version number strings such as:
2022 // 5
2023 // 4.4
2024 // 4.4-patched
2025 // 4.4.0
2026 // 4.4.x
2027 // 4.4.2-rc4
2028 // 4.4.x-patched
2029 // 10-win32
2030 // Split on '.', handle 1, 2 or 3 such segments. Each segment must contain
2031 // purely a number, except for the last one, where a non-number suffix
2032 // is stored in PatchSuffix. The third segment is allowed to not contain
2033 // a number at all.
2034
2035 auto TryParseLastNumber = [&](StringRef Segment, int &Number,
2036 std::string &OutStr) -> bool {
2037 // Look for a number prefix and parse that, and split out any trailing
2038 // string into GoodVersion.PatchSuffix.
2039
2040 if (size_t EndNumber = Segment.find_first_not_of("0123456789")) {
2041 StringRef NumberStr = Segment.slice(0, EndNumber);
2042 if (NumberStr.getAsInteger(10, Number) || Number < 0)
2043 return false;
2044 OutStr = NumberStr;
2045 GoodVersion.PatchSuffix = Segment.substr(EndNumber);
2046 return true;
2047 }
2048 return false;
2049 };
2050 auto TryParseNumber = [](StringRef Segment, int &Number) -> bool {
2051 if (Segment.getAsInteger(10, Number) || Number < 0)
2052 return false;
2053 return true;
2054 };
2055
2056 if (MinorStr.empty()) {
2057 // If no minor string, major is the last segment
2058 if (!TryParseLastNumber(MajorStr, GoodVersion.Major, GoodVersion.MajorStr))
2059 return BadVersion;
2060 return GoodVersion;
2061 }
2062
2063 if (!TryParseNumber(MajorStr, GoodVersion.Major))
2064 return BadVersion;
2065 GoodVersion.MajorStr = MajorStr;
2066
2067 if (PatchStr.empty()) {
2068 // If no patch string, minor is the last segment
2069 if (!TryParseLastNumber(MinorStr, GoodVersion.Minor, GoodVersion.MinorStr))
2070 return BadVersion;
2071 return GoodVersion;
2072 }
2073
2074 if (!TryParseNumber(MinorStr, GoodVersion.Minor))
2075 return BadVersion;
2076 GoodVersion.MinorStr = MinorStr;
2077
2078 // For the last segment, tolerate a missing number.
2079 std::string DummyStr;
2080 TryParseLastNumber(PatchStr, GoodVersion.Patch, DummyStr);
2081 return GoodVersion;
2082}
2083
2084static llvm::StringRef getGCCToolchainDir(const ArgList &Args,
2085 llvm::StringRef SysRoot) {
2086 const Arg *A = Args.getLastArg(options::OPT_gcc_toolchain);
2087 if (A)
2088 return A->getValue();
2089
2090 // If we have a SysRoot, ignore GCC_INSTALL_PREFIX.
2091 // GCC_INSTALL_PREFIX specifies the gcc installation for the default
2092 // sysroot and is likely not valid with a different sysroot.
2093 if (!SysRoot.empty())
2094 return "";
2095
2096 return GCC_INSTALL_PREFIX;
2097}
2098
2099/// Initialize a GCCInstallationDetector from the driver.
2100///
2101/// This performs all of the autodetection and sets up the various paths.
2102/// Once constructed, a GCCInstallationDetector is essentially immutable.
2103///
2104/// FIXME: We shouldn't need an explicit TargetTriple parameter here, and
2105/// should instead pull the target out of the driver. This is currently
2106/// necessary because the driver doesn't store the final version of the target
2107/// triple.
2108void Generic_GCC::GCCInstallationDetector::init(
2109 const llvm::Triple &TargetTriple, const ArgList &Args) {
2110 llvm::Triple BiarchVariantTriple = TargetTriple.isArch32Bit()
2111 ? TargetTriple.get64BitArchVariant()
2112 : TargetTriple.get32BitArchVariant();
2113 // The library directories which may contain GCC installations.
2114 SmallVector<StringRef, 4> CandidateLibDirs, CandidateBiarchLibDirs;
2115 // The compatible GCC triples for this particular architecture.
2116 SmallVector<StringRef, 16> CandidateTripleAliases;
2117 SmallVector<StringRef, 16> CandidateBiarchTripleAliases;
2118 // Add some triples that we want to check first.
2119 CandidateTripleAliases.push_back(TargetTriple.str());
2120 std::string TripleNoVendor, BiarchTripleNoVendor;
2121 if (TargetTriple.getVendor() == llvm::Triple::UnknownVendor) {
2122 StringRef OSEnv = TargetTriple.getOSAndEnvironmentName();
2123 if (TargetTriple.getEnvironment() == llvm::Triple::GNUX32)
2124 OSEnv = "linux-gnu";
2125 TripleNoVendor = (TargetTriple.getArchName().str() + '-' + OSEnv).str();
2126 CandidateTripleAliases.push_back(TripleNoVendor);
2127 if (BiarchVariantTriple.getArch() != llvm::Triple::UnknownArch) {
2128 BiarchTripleNoVendor =
2129 (BiarchVariantTriple.getArchName().str() + '-' + OSEnv).str();
2130 CandidateBiarchTripleAliases.push_back(BiarchTripleNoVendor);
2131 }
2132 }
2133
2134 CollectLibDirsAndTriples(TargetTriple, BiarchVariantTriple, CandidateLibDirs,
2135 CandidateTripleAliases, CandidateBiarchLibDirs,
2136 CandidateBiarchTripleAliases);
2137
2138 // If --gcc-install-dir= is specified, skip filesystem detection.
2139 if (const Arg *A = Args.getLastArg(options::OPT_gcc_install_dir_EQ);
2140 A && A->getValue()[0]) {
2141 StringRef InstallDir = A->getValue();
2142 if (!ScanGCCForMultilibs(TargetTriple, Args, InstallDir, false)) {
2143 D.Diag(diag::err_drv_invalid_gcc_install_dir) << InstallDir;
2144 } else {
2145 (void)InstallDir.consume_back("/");
2146 StringRef VersionText = llvm::sys::path::filename(InstallDir);
2147 StringRef TripleText =
2148 llvm::sys::path::filename(llvm::sys::path::parent_path(InstallDir));
2149
2150 SelectedInstallation.Version = GCCVersion::Parse(VersionText);
2151 SelectedInstallation.GCCTriple.setTriple(TripleText);
2152 SelectedInstallation.GCCInstallPath = std::string(InstallDir);
2153 SelectedInstallation.GCCParentLibPath =
2154 SelectedInstallation.GCCInstallPath + "/../../..";
2155 IsValid = true;
2156 }
2157 return;
2158 }
2159
2160 // If --gcc-triple is specified use this instead of trying to
2161 // auto-detect a triple.
2162 if (const Arg *A = Args.getLastArg(options::OPT_gcc_triple_EQ)) {
2163 StringRef GCCTriple = A->getValue();
2164 CandidateTripleAliases.clear();
2165 CandidateTripleAliases.push_back(GCCTriple);
2166 }
2167
2168 // Compute the set of prefixes for our search.
2169 SmallVector<std::string, 8> Prefixes;
2170 StringRef GCCToolchainDir = getGCCToolchainDir(Args, D.SysRoot);
2171 if (GCCToolchainDir != "") {
2172 if (GCCToolchainDir.back() == '/')
2173 GCCToolchainDir = GCCToolchainDir.drop_back(); // remove the /
2174
2175 Prefixes.push_back(std::string(GCCToolchainDir));
2176 } else {
2177 // If we have a SysRoot, try that first.
2178 if (!D.SysRoot.empty()) {
2179 Prefixes.push_back(D.SysRoot);
2180 AddDefaultGCCPrefixes(TargetTriple, Prefixes, D.SysRoot);
2181 }
2182
2183 // Then look for gcc installed alongside clang.
2184 Prefixes.push_back(D.Dir + "/..");
2185
2186 // Next, look for prefix(es) that correspond to distribution-supplied gcc
2187 // installations.
2188 if (D.SysRoot.empty()) {
2189 // Typically /usr.
2190 AddDefaultGCCPrefixes(TargetTriple, Prefixes, D.SysRoot);
2191 }
2192
2193 // Try to respect gcc-config on Gentoo if --gcc-toolchain is not provided.
2194 // This avoids accidentally enforcing the system GCC version when using a
2195 // custom toolchain.
2196 SmallVector<StringRef, 16> GentooTestTriples;
2197 // Try to match an exact triple as target triple first.
2198 // e.g. crossdev -S x86_64-gentoo-linux-gnu will install gcc libs for
2199 // x86_64-gentoo-linux-gnu. But "clang -target x86_64-gentoo-linux-gnu"
2200 // may pick the libraries for x86_64-pc-linux-gnu even when exact matching
2201 // triple x86_64-gentoo-linux-gnu is present.
2202 GentooTestTriples.push_back(TargetTriple.str());
2203 GentooTestTriples.append(CandidateTripleAliases.begin(),
2204 CandidateTripleAliases.end());
2205 if (ScanGentooConfigs(TargetTriple, Args, GentooTestTriples,
2206 CandidateBiarchTripleAliases))
2207 return;
2208 }
2209
2210 // Loop over the various components which exist and select the best GCC
2211 // installation available. GCC installs are ranked by version number.
2212 const GCCVersion VersionZero = GCCVersion::Parse("0.0.0");
2213 SelectedInstallation.Version = VersionZero;
2214 for (const std::string &Prefix : Prefixes) {
2215 auto &VFS = D.getVFS();
2216 if (!VFS.exists(Prefix))
2217 continue;
2218 for (StringRef Suffix : CandidateLibDirs) {
2219 const std::string LibDir = concat(Prefix, Suffix);
2220 if (!VFS.exists(LibDir))
2221 continue;
2222 // Maybe filter out <libdir>/gcc and <libdir>/gcc-cross.
2223 bool GCCDirExists = VFS.exists(LibDir + "/gcc");
2224 bool GCCCrossDirExists = VFS.exists(LibDir + "/gcc-cross");
2225 for (StringRef Candidate : CandidateTripleAliases)
2226 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate, false,
2227 GCCDirExists, GCCCrossDirExists);
2228 }
2229 for (StringRef Suffix : CandidateBiarchLibDirs) {
2230 const std::string LibDir = Prefix + Suffix.str();
2231 if (!VFS.exists(LibDir))
2232 continue;
2233 bool GCCDirExists = VFS.exists(LibDir + "/gcc");
2234 bool GCCCrossDirExists = VFS.exists(LibDir + "/gcc-cross");
2235 for (StringRef Candidate : CandidateBiarchTripleAliases)
2236 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate, true,
2237 GCCDirExists, GCCCrossDirExists);
2238 }
2239
2240 // Skip other prefixes once a GCC installation is found.
2241 if (SelectedInstallation.Version > VersionZero)
2242 break;
2243 }
2244}
2245
2246void Generic_GCC::GCCInstallationDetector::print(raw_ostream &OS) const {
2247 for (const auto &InstallPath : CandidateGCCInstallPaths)
2248 OS << "Found candidate GCC installation: " << InstallPath << "\n";
2249
2250 if (!SelectedInstallation.GCCInstallPath.empty())
2251 OS << "Selected GCC installation: " << SelectedInstallation.GCCInstallPath
2252 << "\n";
2253
2254 for (const auto &Multilib : Multilibs)
2255 OS << "Candidate multilib: " << Multilib << "\n";
2256
2257 if (Multilibs.size() != 0 ||
2258 !SelectedInstallation.SelectedMultilib.isDefault())
2259 OS << "Selected multilib: " << SelectedInstallation.SelectedMultilib
2260 << "\n";
2261}
2262
2263bool Generic_GCC::GCCInstallationDetector::getBiarchSibling(Multilib &M) const {
2264 if (BiarchSibling) {
2265 M = *BiarchSibling;
2266 return true;
2267 }
2268 return false;
2269}
2270
2271void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
2272 const llvm::Triple &TargetTriple, SmallVectorImpl<std::string> &Prefixes,
2273 StringRef SysRoot) {
2274
2275 if (TargetTriple.isOSHaiku()) {
2276 Prefixes.push_back(concat(SysRoot, "/boot/system/develop/tools"));
2277 return;
2278 }
2279
2280 if (TargetTriple.isOSSolaris()) {
2281 // Solaris is a special case.
2282 // The GCC installation is under
2283 // /usr/gcc/<major>.<minor>/lib/gcc/<triple>/<major>.<minor>.<patch>/
2284 // so we need to find those /usr/gcc/*/lib/gcc libdirs and go with
2285 // /usr/gcc/<version> as a prefix.
2286
2287 SmallVector<std::pair<GCCVersion, std::string>, 8> SolarisPrefixes;
2288 std::string PrefixDir = concat(SysRoot, "/usr/gcc");
2289 std::error_code EC;
2290 for (llvm::vfs::directory_iterator LI = D.getVFS().dir_begin(PrefixDir, EC),
2291 LE;
2292 !EC && LI != LE; LI = LI.increment(EC)) {
2293 StringRef VersionText = llvm::sys::path::filename(LI->path());
2294 GCCVersion CandidateVersion = GCCVersion::Parse(VersionText);
2295
2296 // Filter out obviously bad entries.
2297 if (CandidateVersion.Major == -1 || CandidateVersion.isOlderThan(4, 1, 1))
2298 continue;
2299
2300 std::string CandidatePrefix = PrefixDir + "/" + VersionText.str();
2301 std::string CandidateLibPath = CandidatePrefix + "/lib/gcc";
2302 if (!D.getVFS().exists(CandidateLibPath))
2303 continue;
2304
2305 SolarisPrefixes.emplace_back(
2306 std::make_pair(CandidateVersion, CandidatePrefix));
2307 }
2308 // Sort in reverse order so GCCInstallationDetector::init picks the latest.
2309 std::sort(SolarisPrefixes.rbegin(), SolarisPrefixes.rend());
2310 for (auto p : SolarisPrefixes)
2311 Prefixes.emplace_back(p.second);
2312 return;
2313 }
2314
2315 // For Linux, if --sysroot is not specified, look for RHEL/CentOS devtoolsets
2316 // and gcc-toolsets.
2317 if (SysRoot.empty() && TargetTriple.getOS() == llvm::Triple::Linux &&
2318 D.getVFS().exists("/opt/rh")) {
2319 // TODO: We may want to remove this, since the functionality
2320 // can be achieved using config files.
2321 Prefixes.push_back("/opt/rh/gcc-toolset-13/root/usr");
2322 Prefixes.push_back("/opt/rh/gcc-toolset-12/root/usr");
2323 Prefixes.push_back("/opt/rh/gcc-toolset-11/root/usr");
2324 Prefixes.push_back("/opt/rh/gcc-toolset-10/root/usr");
2325 Prefixes.push_back("/opt/rh/devtoolset-12/root/usr");
2326 Prefixes.push_back("/opt/rh/devtoolset-11/root/usr");
2327 Prefixes.push_back("/opt/rh/devtoolset-10/root/usr");
2328 Prefixes.push_back("/opt/rh/devtoolset-9/root/usr");
2329 Prefixes.push_back("/opt/rh/devtoolset-8/root/usr");
2330 Prefixes.push_back("/opt/rh/devtoolset-7/root/usr");
2331 Prefixes.push_back("/opt/rh/devtoolset-6/root/usr");
2332 Prefixes.push_back("/opt/rh/devtoolset-4/root/usr");
2333 Prefixes.push_back("/opt/rh/devtoolset-3/root/usr");
2334 Prefixes.push_back("/opt/rh/devtoolset-2/root/usr");
2335 }
2336
2337 // Fall back to /usr which is used by most non-Solaris systems.
2338 Prefixes.push_back(concat(SysRoot, "/usr"));
2339}
2340
2341/*static*/ void Generic_GCC::GCCInstallationDetector::CollectLibDirsAndTriples(
2342 const llvm::Triple &TargetTriple, const llvm::Triple &BiarchTriple,
2343 SmallVectorImpl<StringRef> &LibDirs,
2344 SmallVectorImpl<StringRef> &TripleAliases,
2345 SmallVectorImpl<StringRef> &BiarchLibDirs,
2346 SmallVectorImpl<StringRef> &BiarchTripleAliases) {
2347 // Declare a bunch of static data sets that we'll select between below. These
2348 // are specifically designed to always refer to string literals to avoid any
2349 // lifetime or initialization issues.
2350 //
2351 // The *Triples variables hard code some triples so that, for example,
2352 // --target=aarch64 (incomplete triple) can detect lib/aarch64-linux-gnu.
2353 // They are not needed when the user has correct LLVM_DEFAULT_TARGET_TRIPLE
2354 // and always uses the full --target (e.g. --target=aarch64-linux-gnu). The
2355 // lists should shrink over time. Please don't add more elements to *Triples.
2356 static const char *const AArch64LibDirs[] = {"/lib64", "/lib"};
2357 static const char *const AArch64Triples[] = {
2358 "aarch64-none-linux-gnu", "aarch64-redhat-linux", "aarch64-suse-linux"};
2359 static const char *const AArch64beLibDirs[] = {"/lib"};
2360 static const char *const AArch64beTriples[] = {"aarch64_be-none-linux-gnu"};
2361
2362 static const char *const ARMLibDirs[] = {"/lib"};
2363 static const char *const ARMTriples[] = {"arm-linux-gnueabi"};
2364 static const char *const ARMHFTriples[] = {"arm-linux-gnueabihf",
2365 "armv7hl-redhat-linux-gnueabi",
2366 "armv6hl-suse-linux-gnueabi",
2367 "armv7hl-suse-linux-gnueabi"};
2368 static const char *const ARMebLibDirs[] = {"/lib"};
2369 static const char *const ARMebTriples[] = {"armeb-linux-gnueabi"};
2370 static const char *const ARMebHFTriples[] = {
2371 "armeb-linux-gnueabihf", "armebv7hl-redhat-linux-gnueabi"};
2372
2373 static const char *const AVRLibDirs[] = {"/lib"};
2374 static const char *const AVRTriples[] = {"avr"};
2375
2376 static const char *const CSKYLibDirs[] = {"/lib"};
2377 static const char *const CSKYTriples[] = {
2378 "csky-linux-gnuabiv2", "csky-linux-uclibcabiv2", "csky-elf-noneabiv2"};
2379
2380 static const char *const X86_64LibDirs[] = {"/lib64", "/lib"};
2381 static const char *const X86_64Triples[] = {
2382 "x86_64-linux-gnu", "x86_64-unknown-linux-gnu",
2383 "x86_64-pc-linux-gnu", "x86_64-redhat-linux6E",
2384 "x86_64-redhat-linux", "x86_64-suse-linux",
2385 "x86_64-manbo-linux-gnu", "x86_64-slackware-linux",
2386 "x86_64-unknown-linux", "x86_64-amazon-linux"};
2387 static const char *const X32Triples[] = {"x86_64-linux-gnux32",
2388 "x86_64-pc-linux-gnux32"};
2389 static const char *const X32LibDirs[] = {"/libx32", "/lib"};
2390 static const char *const X86LibDirs[] = {"/lib32", "/lib"};
2391 static const char *const X86Triples[] = {
2392 "i586-linux-gnu", "i686-linux-gnu", "i686-pc-linux-gnu",
2393 "i386-redhat-linux6E", "i686-redhat-linux", "i386-redhat-linux",
2394 "i586-suse-linux", "i686-montavista-linux",
2395 };
2396
2397 static const char *const LoongArch32LibDirs[] = {"/lib32", "/lib"};
2398 static const char *const LoongArch32Triples[] = {
2399 "loongarch32-linux-gnu", "loongarch32-unknown-linux-gnu",
2400 "loongarch32-linux-gnuf32", "loongarch32-unknown-linux-gnuf32",
2401 "loongarch32-linux-gnusf", "loongarch32-unknown-linux-gnusf"};
2402
2403 static const char *const LoongArch64LibDirs[] = {"/lib64", "/lib"};
2404 static const char *const LoongArch64Triples[] = {
2405 "loongarch64-linux-gnu", "loongarch64-unknown-linux-gnu"};
2406
2407 static const char *const M68kLibDirs[] = {"/lib"};
2408 static const char *const M68kTriples[] = {"m68k-unknown-linux-gnu",
2409 "m68k-suse-linux"};
2410
2411 static const char *const MIPSLibDirs[] = {"/libo32", "/lib"};
2412 static const char *const MIPSTriples[] = {
2413 "mips-linux-gnu", "mips-mti-linux", "mips-mti-linux-gnu",
2414 "mips-img-linux-gnu", "mipsisa32r6-linux-gnu"};
2415 static const char *const MIPSELLibDirs[] = {"/libo32", "/lib"};
2416 static const char *const MIPSELTriples[] = {"mipsel-linux-gnu",
2417 "mips-img-linux-gnu"};
2418
2419 static const char *const MIPS64LibDirs[] = {"/lib64", "/lib"};
2420 static const char *const MIPS64Triples[] = {
2421 "mips-mti-linux-gnu", "mips-img-linux-gnu", "mips64-linux-gnuabi64",
2422 "mipsisa64r6-linux-gnu", "mipsisa64r6-linux-gnuabi64"};
2423 static const char *const MIPS64ELLibDirs[] = {"/lib64", "/lib"};
2424 static const char *const MIPS64ELTriples[] = {
2425 "mips-mti-linux-gnu", "mips-img-linux-gnu", "mips64el-linux-gnuabi64",
2426 "mipsisa64r6el-linux-gnu", "mipsisa64r6el-linux-gnuabi64"};
2427
2428 static const char *const MIPSN32LibDirs[] = {"/lib32"};
2429 static const char *const MIPSN32Triples[] = {"mips64-linux-gnuabin32",
2430 "mipsisa64r6-linux-gnuabin32"};
2431 static const char *const MIPSN32ELLibDirs[] = {"/lib32"};
2432 static const char *const MIPSN32ELTriples[] = {
2433 "mips64el-linux-gnuabin32", "mipsisa64r6el-linux-gnuabin32"};
2434
2435 static const char *const MSP430LibDirs[] = {"/lib"};
2436 static const char *const MSP430Triples[] = {"msp430-elf"};
2437
2438 static const char *const PPCLibDirs[] = {"/lib32", "/lib"};
2439 static const char *const PPCTriples[] = {
2440 "powerpc-unknown-linux-gnu",
2441 // On 32-bit PowerPC systems running SUSE Linux, gcc is configured as a
2442 // 64-bit compiler which defaults to "-m32", hence "powerpc64-suse-linux".
2443 "powerpc64-suse-linux", "powerpc-montavista-linuxspe"};
2444 static const char *const PPCLELibDirs[] = {"/lib32", "/lib"};
2445 static const char *const PPCLETriples[] = {"powerpcle-unknown-linux-gnu",
2446 "powerpcle-linux-musl"};
2447
2448 static const char *const PPC64LibDirs[] = {"/lib64", "/lib"};
2449 static const char *const PPC64Triples[] = {"powerpc64-unknown-linux-gnu",
2450 "powerpc64-suse-linux",
2451 "ppc64-redhat-linux"};
2452 static const char *const PPC64LELibDirs[] = {"/lib64", "/lib"};
2453 static const char *const PPC64LETriples[] = {
2454 "powerpc64le-unknown-linux-gnu", "powerpc64le-none-linux-gnu",
2455 "powerpc64le-suse-linux", "ppc64le-redhat-linux"};
2456
2457 static const char *const RISCV32LibDirs[] = {"/lib32", "/lib"};
2458 static const char *const RISCV32Triples[] = {"riscv32-unknown-linux-gnu",
2459 "riscv32-unknown-elf"};
2460 static const char *const RISCV64LibDirs[] = {"/lib64", "/lib"};
2461 static const char *const RISCV64Triples[] = {"riscv64-unknown-linux-gnu",
2462 "riscv64-unknown-elf"};
2463
2464 static const char *const RISCV32beLibDirs[] = {"/lib32", "/lib"};
2465 static const char *const RISCV32beTriples[] = {"riscv32be-unknown-linux-gnu",
2466 "riscv32be-linux-gnu",
2467 "riscv32be-unknown-elf"};
2468 static const char *const RISCV64beLibDirs[] = {"/lib64", "/lib"};
2469 static const char *const RISCV64beTriples[] = {"riscv64be-unknown-linux-gnu",
2470 "riscv64be-linux-gnu",
2471 "riscv64be-unknown-elf"};
2472
2473 static const char *const SPARCv8LibDirs[] = {"/lib32", "/lib"};
2474 static const char *const SPARCv8Triples[] = {"sparc-linux-gnu",
2475 "sparcv8-linux-gnu"};
2476 static const char *const SPARCv9LibDirs[] = {"/lib64", "/lib"};
2477 static const char *const SPARCv9Triples[] = {"sparc64-linux-gnu",
2478 "sparcv9-linux-gnu"};
2479
2480 static const char *const SystemZLibDirs[] = {"/lib64", "/lib"};
2481 static const char *const SystemZTriples[] = {
2482 "s390x-unknown-linux-gnu", "s390x-ibm-linux-gnu", "s390x-suse-linux",
2483 "s390x-redhat-linux"};
2484
2485 using std::begin;
2486 using std::end;
2487
2488 if (TargetTriple.isOSSolaris()) {
2489 static const char *const SolarisLibDirs[] = {"/lib"};
2490 static const char *const SolarisSparcV8Triples[] = {
2491 "sparc-sun-solaris2.11"};
2492 static const char *const SolarisSparcV9Triples[] = {
2493 "sparcv9-sun-solaris2.11"};
2494 static const char *const SolarisX86Triples[] = {"i386-pc-solaris2.11"};
2495 static const char *const SolarisX86_64Triples[] = {"x86_64-pc-solaris2.11"};
2496 LibDirs.append(begin(SolarisLibDirs), end(SolarisLibDirs));
2497 BiarchLibDirs.append(begin(SolarisLibDirs), end(SolarisLibDirs));
2498 switch (TargetTriple.getArch()) {
2499 case llvm::Triple::x86:
2500 TripleAliases.append(begin(SolarisX86Triples), end(SolarisX86Triples));
2501 BiarchTripleAliases.append(begin(SolarisX86_64Triples),
2502 end(SolarisX86_64Triples));
2503 break;
2504 case llvm::Triple::x86_64:
2505 TripleAliases.append(begin(SolarisX86_64Triples),
2506 end(SolarisX86_64Triples));
2507 BiarchTripleAliases.append(begin(SolarisX86Triples),
2508 end(SolarisX86Triples));
2509 break;
2510 case llvm::Triple::sparc:
2511 TripleAliases.append(begin(SolarisSparcV8Triples),
2512 end(SolarisSparcV8Triples));
2513 BiarchTripleAliases.append(begin(SolarisSparcV9Triples),
2514 end(SolarisSparcV9Triples));
2515 break;
2516 case llvm::Triple::sparcv9:
2517 TripleAliases.append(begin(SolarisSparcV9Triples),
2518 end(SolarisSparcV9Triples));
2519 BiarchTripleAliases.append(begin(SolarisSparcV8Triples),
2520 end(SolarisSparcV8Triples));
2521 break;
2522 default:
2523 break;
2524 }
2525 return;
2526 }
2527
2528 // Android targets should not use GNU/Linux tools or libraries.
2529 if (TargetTriple.isAndroid()) {
2530 static const char *const AArch64AndroidTriples[] = {
2531 "aarch64-linux-android"};
2532 static const char *const ARMAndroidTriples[] = {"arm-linux-androideabi"};
2533 static const char *const X86AndroidTriples[] = {"i686-linux-android"};
2534 static const char *const X86_64AndroidTriples[] = {"x86_64-linux-android"};
2535
2536 switch (TargetTriple.getArch()) {
2537 case llvm::Triple::aarch64:
2538 LibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
2539 TripleAliases.append(begin(AArch64AndroidTriples),
2540 end(AArch64AndroidTriples));
2541 break;
2542 case llvm::Triple::arm:
2543 case llvm::Triple::thumb:
2544 LibDirs.append(begin(ARMLibDirs), end(ARMLibDirs));
2545 TripleAliases.append(begin(ARMAndroidTriples), end(ARMAndroidTriples));
2546 break;
2547 case llvm::Triple::x86_64:
2548 LibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2549 TripleAliases.append(begin(X86_64AndroidTriples),
2550 end(X86_64AndroidTriples));
2551 BiarchLibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2552 BiarchTripleAliases.append(begin(X86AndroidTriples),
2553 end(X86AndroidTriples));
2554 break;
2555 case llvm::Triple::x86:
2556 LibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2557 TripleAliases.append(begin(X86AndroidTriples), end(X86AndroidTriples));
2558 BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2559 BiarchTripleAliases.append(begin(X86_64AndroidTriples),
2560 end(X86_64AndroidTriples));
2561 break;
2562 default:
2563 break;
2564 }
2565
2566 return;
2567 }
2568
2569 if (TargetTriple.isOSHurd()) {
2570 switch (TargetTriple.getArch()) {
2571 case llvm::Triple::aarch64:
2572 LibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
2573 TripleAliases.push_back("aarch64-gnu");
2574 break;
2575 case llvm::Triple::riscv64:
2576 LibDirs.append(begin(RISCV64LibDirs), end(RISCV64LibDirs));
2577 TripleAliases.push_back("riscv64-gnu");
2578 break;
2579 case llvm::Triple::x86_64:
2580 LibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2581 TripleAliases.push_back("x86_64-gnu");
2582 break;
2583 case llvm::Triple::x86:
2584 LibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2585 TripleAliases.push_back("i686-gnu");
2586 break;
2587 default:
2588 break;
2589 }
2590
2591 return;
2592 }
2593
2594 if (TargetTriple.isWindowsCygwinEnvironment()) {
2595 LibDirs.push_back("/lib");
2596 switch (TargetTriple.getArch()) {
2597 case llvm::Triple::x86_64:
2598 TripleAliases.append({"x86_64-pc-cygwin", "x86_64-pc-msys"});
2599 break;
2600 case llvm::Triple::x86:
2601 TripleAliases.append({"i686-pc-cygwin", "i686-pc-msys"});
2602 break;
2603 default:
2604 break;
2605 }
2606
2607 return;
2608 }
2609
2610 switch (TargetTriple.getArch()) {
2611 case llvm::Triple::aarch64:
2612 LibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
2613 TripleAliases.append(begin(AArch64Triples), end(AArch64Triples));
2614 BiarchLibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
2615 BiarchTripleAliases.append(begin(AArch64Triples), end(AArch64Triples));
2616 break;
2617 case llvm::Triple::aarch64_be:
2618 LibDirs.append(begin(AArch64beLibDirs), end(AArch64beLibDirs));
2619 TripleAliases.append(begin(AArch64beTriples), end(AArch64beTriples));
2620 BiarchLibDirs.append(begin(AArch64beLibDirs), end(AArch64beLibDirs));
2621 BiarchTripleAliases.append(begin(AArch64beTriples), end(AArch64beTriples));
2622 break;
2623 case llvm::Triple::arm:
2624 case llvm::Triple::thumb:
2625 LibDirs.append(begin(ARMLibDirs), end(ARMLibDirs));
2626 if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF ||
2627 TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHFT64 ||
2628 TargetTriple.getEnvironment() == llvm::Triple::MuslEABIHF ||
2629 TargetTriple.getEnvironment() == llvm::Triple::EABIHF) {
2630 TripleAliases.append(begin(ARMHFTriples), end(ARMHFTriples));
2631 } else {
2632 TripleAliases.append(begin(ARMTriples), end(ARMTriples));
2633 }
2634 break;
2635 case llvm::Triple::armeb:
2636 case llvm::Triple::thumbeb:
2637 LibDirs.append(begin(ARMebLibDirs), end(ARMebLibDirs));
2638 if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF ||
2639 TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHFT64 ||
2640 TargetTriple.getEnvironment() == llvm::Triple::MuslEABIHF ||
2641 TargetTriple.getEnvironment() == llvm::Triple::EABIHF) {
2642 TripleAliases.append(begin(ARMebHFTriples), end(ARMebHFTriples));
2643 } else {
2644 TripleAliases.append(begin(ARMebTriples), end(ARMebTriples));
2645 }
2646 break;
2647 case llvm::Triple::avr:
2648 LibDirs.append(begin(AVRLibDirs), end(AVRLibDirs));
2649 TripleAliases.append(begin(AVRTriples), end(AVRTriples));
2650 break;
2651 case llvm::Triple::csky:
2652 LibDirs.append(begin(CSKYLibDirs), end(CSKYLibDirs));
2653 TripleAliases.append(begin(CSKYTriples), end(CSKYTriples));
2654 break;
2655 case llvm::Triple::x86_64:
2656 if (TargetTriple.isX32()) {
2657 LibDirs.append(begin(X32LibDirs), end(X32LibDirs));
2658 TripleAliases.append(begin(X32Triples), end(X32Triples));
2659 BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2660 BiarchTripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
2661 } else {
2662 LibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2663 TripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
2664 BiarchLibDirs.append(begin(X32LibDirs), end(X32LibDirs));
2665 BiarchTripleAliases.append(begin(X32Triples), end(X32Triples));
2666 }
2667 BiarchLibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2668 BiarchTripleAliases.append(begin(X86Triples), end(X86Triples));
2669 break;
2670 case llvm::Triple::x86:
2671 LibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2672 // MCU toolchain is 32 bit only and its triple alias is TargetTriple
2673 // itself, which will be appended below.
2674 if (!TargetTriple.isOSIAMCU()) {
2675 TripleAliases.append(begin(X86Triples), end(X86Triples));
2676 BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2677 BiarchTripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
2678 BiarchLibDirs.append(begin(X32LibDirs), end(X32LibDirs));
2679 BiarchTripleAliases.append(begin(X32Triples), end(X32Triples));
2680 }
2681 break;
2682 case llvm::Triple::loongarch32:
2683 LibDirs.append(begin(LoongArch32LibDirs), end(LoongArch32LibDirs));
2684 TripleAliases.append(begin(LoongArch32Triples), end(LoongArch32Triples));
2685 break;
2686 case llvm::Triple::loongarch64:
2687 LibDirs.append(begin(LoongArch64LibDirs), end(LoongArch64LibDirs));
2688 TripleAliases.append(begin(LoongArch64Triples), end(LoongArch64Triples));
2689 break;
2690 case llvm::Triple::m68k:
2691 LibDirs.append(begin(M68kLibDirs), end(M68kLibDirs));
2692 TripleAliases.append(begin(M68kTriples), end(M68kTriples));
2693 break;
2694 case llvm::Triple::mips:
2695 LibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs));
2696 TripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2697 BiarchLibDirs.append(begin(MIPS64LibDirs), end(MIPS64LibDirs));
2698 BiarchTripleAliases.append(begin(MIPS64Triples), end(MIPS64Triples));
2699 BiarchLibDirs.append(begin(MIPSN32LibDirs), end(MIPSN32LibDirs));
2700 BiarchTripleAliases.append(begin(MIPSN32Triples), end(MIPSN32Triples));
2701 break;
2702 case llvm::Triple::mipsel:
2703 LibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs));
2704 TripleAliases.append(begin(MIPSELTriples), end(MIPSELTriples));
2705 TripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2706 BiarchLibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs));
2707 BiarchTripleAliases.append(begin(MIPS64ELTriples), end(MIPS64ELTriples));
2708 BiarchLibDirs.append(begin(MIPSN32ELLibDirs), end(MIPSN32ELLibDirs));
2709 BiarchTripleAliases.append(begin(MIPSN32ELTriples), end(MIPSN32ELTriples));
2710 break;
2711 case llvm::Triple::mips64:
2712 LibDirs.append(begin(MIPS64LibDirs), end(MIPS64LibDirs));
2713 TripleAliases.append(begin(MIPS64Triples), end(MIPS64Triples));
2714 BiarchLibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs));
2715 BiarchTripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2716 BiarchLibDirs.append(begin(MIPSN32LibDirs), end(MIPSN32LibDirs));
2717 BiarchTripleAliases.append(begin(MIPSN32Triples), end(MIPSN32Triples));
2718 break;
2719 case llvm::Triple::mips64el:
2720 LibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs));
2721 TripleAliases.append(begin(MIPS64ELTriples), end(MIPS64ELTriples));
2722 BiarchLibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs));
2723 BiarchTripleAliases.append(begin(MIPSELTriples), end(MIPSELTriples));
2724 BiarchLibDirs.append(begin(MIPSN32ELLibDirs), end(MIPSN32ELLibDirs));
2725 BiarchTripleAliases.append(begin(MIPSN32ELTriples), end(MIPSN32ELTriples));
2726 BiarchTripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2727 break;
2728 case llvm::Triple::msp430:
2729 LibDirs.append(begin(MSP430LibDirs), end(MSP430LibDirs));
2730 TripleAliases.append(begin(MSP430Triples), end(MSP430Triples));
2731 break;
2732 case llvm::Triple::ppc:
2733 LibDirs.append(begin(PPCLibDirs), end(PPCLibDirs));
2734 TripleAliases.append(begin(PPCTriples), end(PPCTriples));
2735 BiarchLibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs));
2736 BiarchTripleAliases.append(begin(PPC64Triples), end(PPC64Triples));
2737 break;
2738 case llvm::Triple::ppcle:
2739 LibDirs.append(begin(PPCLELibDirs), end(PPCLELibDirs));
2740 TripleAliases.append(begin(PPCLETriples), end(PPCLETriples));
2741 BiarchLibDirs.append(begin(PPC64LELibDirs), end(PPC64LELibDirs));
2742 BiarchTripleAliases.append(begin(PPC64LETriples), end(PPC64LETriples));
2743 break;
2744 case llvm::Triple::ppc64:
2745 LibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs));
2746 TripleAliases.append(begin(PPC64Triples), end(PPC64Triples));
2747 BiarchLibDirs.append(begin(PPCLibDirs), end(PPCLibDirs));
2748 BiarchTripleAliases.append(begin(PPCTriples), end(PPCTriples));
2749 break;
2750 case llvm::Triple::ppc64le:
2751 LibDirs.append(begin(PPC64LELibDirs), end(PPC64LELibDirs));
2752 TripleAliases.append(begin(PPC64LETriples), end(PPC64LETriples));
2753 BiarchLibDirs.append(begin(PPCLELibDirs), end(PPCLELibDirs));
2754 BiarchTripleAliases.append(begin(PPCLETriples), end(PPCLETriples));
2755 break;
2756 case llvm::Triple::riscv32:
2757 LibDirs.append(begin(RISCV32LibDirs), end(RISCV32LibDirs));
2758 TripleAliases.append(begin(RISCV32Triples), end(RISCV32Triples));
2759 BiarchLibDirs.append(begin(RISCV64LibDirs), end(RISCV64LibDirs));
2760 BiarchTripleAliases.append(begin(RISCV64Triples), end(RISCV64Triples));
2761 break;
2762 case llvm::Triple::riscv64:
2763 LibDirs.append(begin(RISCV64LibDirs), end(RISCV64LibDirs));
2764 TripleAliases.append(begin(RISCV64Triples), end(RISCV64Triples));
2765 BiarchLibDirs.append(begin(RISCV32LibDirs), end(RISCV32LibDirs));
2766 BiarchTripleAliases.append(begin(RISCV32Triples), end(RISCV32Triples));
2767 break;
2768 case llvm::Triple::riscv32be:
2769 LibDirs.append(begin(RISCV32beLibDirs), end(RISCV32beLibDirs));
2770 TripleAliases.append(begin(RISCV32beTriples), end(RISCV32beTriples));
2771 BiarchLibDirs.append(begin(RISCV64beLibDirs), end(RISCV64beLibDirs));
2772 BiarchTripleAliases.append(begin(RISCV64beTriples), end(RISCV64beTriples));
2773 break;
2774 case llvm::Triple::riscv64be:
2775 LibDirs.append(begin(RISCV64beLibDirs), end(RISCV64beLibDirs));
2776 TripleAliases.append(begin(RISCV64beTriples), end(RISCV64beTriples));
2777 BiarchLibDirs.append(begin(RISCV32beLibDirs), end(RISCV32beLibDirs));
2778 BiarchTripleAliases.append(begin(RISCV32beTriples), end(RISCV32beTriples));
2779 break;
2780 case llvm::Triple::sparc:
2781 case llvm::Triple::sparcel:
2782 LibDirs.append(begin(SPARCv8LibDirs), end(SPARCv8LibDirs));
2783 TripleAliases.append(begin(SPARCv8Triples), end(SPARCv8Triples));
2784 BiarchLibDirs.append(begin(SPARCv9LibDirs), end(SPARCv9LibDirs));
2785 BiarchTripleAliases.append(begin(SPARCv9Triples), end(SPARCv9Triples));
2786 break;
2787 case llvm::Triple::sparcv9:
2788 LibDirs.append(begin(SPARCv9LibDirs), end(SPARCv9LibDirs));
2789 TripleAliases.append(begin(SPARCv9Triples), end(SPARCv9Triples));
2790 BiarchLibDirs.append(begin(SPARCv8LibDirs), end(SPARCv8LibDirs));
2791 BiarchTripleAliases.append(begin(SPARCv8Triples), end(SPARCv8Triples));
2792 break;
2793 case llvm::Triple::systemz:
2794 LibDirs.append(begin(SystemZLibDirs), end(SystemZLibDirs));
2795 TripleAliases.append(begin(SystemZTriples), end(SystemZTriples));
2796 break;
2797 default:
2798 // By default, just rely on the standard lib directories and the original
2799 // triple.
2800 break;
2801 }
2802
2803 // Also include the multiarch variant if it's different.
2804 if (TargetTriple.str() != BiarchTriple.str())
2805 BiarchTripleAliases.push_back(BiarchTriple.str());
2806}
2807
2808bool Generic_GCC::GCCInstallationDetector::ScanGCCForMultilibs(
2809 const llvm::Triple &TargetTriple, const ArgList &Args,
2810 StringRef Path, bool NeedsBiarchSuffix) {
2811 llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
2812 DetectedMultilibs Detected;
2813
2814 // Android standalone toolchain could have multilibs for ARM and Thumb.
2815 // Debian mips multilibs behave more like the rest of the biarch ones,
2816 // so handle them there
2817 if (isArmOrThumbArch(TargetArch) && TargetTriple.isAndroid()) {
2818 // It should also work without multilibs in a simplified toolchain.
2819 findAndroidArmMultilibs(D, TargetTriple, Path, Args, Detected);
2820 } else if (TargetTriple.isCSKY()) {
2821 findCSKYMultilibs(D, TargetTriple, Path, Args, Detected);
2822 } else if (TargetTriple.isMIPS()) {
2823 if (!findMIPSMultilibs(D, TargetTriple, Path, Args, Detected))
2824 return false;
2825 } else if (TargetTriple.isRISCV()) {
2826 findRISCVMultilibs(D, TargetTriple, Path, Args, Detected);
2827 } else if (isMSP430(TargetArch)) {
2828 findMSP430Multilibs(D, TargetTriple, Path, Args, Detected);
2829 } else if (TargetArch == llvm::Triple::avr) {
2830 // AVR has no multilibs.
2831 } else if (!findBiarchMultilibs(D, TargetTriple, Path, Args,
2832 NeedsBiarchSuffix, Detected)) {
2833 return false;
2834 }
2835
2836 Multilibs = Detected.Multilibs;
2837 SelectedInstallation.SelectedMultilib =
2838 Detected.SelectedMultilibs.empty() ? Multilib()
2839 : Detected.SelectedMultilibs.back();
2840 BiarchSibling = Detected.BiarchSibling;
2841
2842 return true;
2843}
2844
2845bool Generic_GCC::GCCInstallationDetector::SelectGCCInstallationDirectory(
2846 const SmallVector<Generic_GCC::GCCInstallCandidate, 3> &Installations,
2847 const ArgList &Args,
2848 Generic_GCC::GCCInstallCandidate &SelectedInstallation) const {
2849 if (Installations.empty())
2850 return false;
2851
2852 SelectedInstallation =
2853 *max_element(Installations, [](const auto &Max, const auto &I) {
2854 return I.Version > Max.Version;
2855 });
2856
2857 // FIXME Start selecting installation with libstdc++ in clang 22,
2858 // using the current way of selecting the installation as a fallback
2859 // only. For now, warn if the installation with libstdc++ differs
2860 // from SelectedInstallation.
2861 const GCCInstallCandidate *InstallWithIncludes = nullptr;
2862 for (const auto &I : Installations) {
2863 if ((!InstallWithIncludes || I.Version > InstallWithIncludes->Version) &&
2864 GCCInstallationHasLibStdcxxIncludePaths(I, Args))
2865 InstallWithIncludes = &I;
2866 }
2867
2868 if (InstallWithIncludes && SelectedInstallation.GCCInstallPath !=
2869 InstallWithIncludes->GCCInstallPath)
2870 D.Diag(diag::warn_drv_gcc_install_dir_libstdcxx)
2871 << InstallWithIncludes->GCCInstallPath
2872 << SelectedInstallation.GCCInstallPath;
2873
2874 // TODO Warn if SelectedInstallation does not contain libstdc++ includes
2875 // although compiler flags indicate that it is required (C++ compilation,
2876 // libstdc++ not explicitly disabled).
2877
2878 return true;
2879}
2880
2881void Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple(
2882 const llvm::Triple &TargetTriple, const ArgList &Args,
2883 const std::string &LibDir, StringRef CandidateTriple,
2884 bool NeedsBiarchSuffix, bool GCCDirExists, bool GCCCrossDirExists) {
2885 // Locations relative to the system lib directory where GCC's triple-specific
2886 // directories might reside.
2887 struct GCCLibSuffix {
2888 // Path from system lib directory to GCC triple-specific directory.
2889 std::string LibSuffix;
2890 // Path from GCC triple-specific directory back to system lib directory.
2891 // This is one '..' component per component in LibSuffix.
2892 StringRef ReversePath;
2893 // Whether this library suffix is relevant for the triple.
2894 bool Active;
2895 } Suffixes[] = {
2896 // This is the normal place.
2897 {"gcc/" + CandidateTriple.str(), "../..", GCCDirExists},
2898
2899 // Debian puts cross-compilers in gcc-cross.
2900 {"gcc-cross/" + CandidateTriple.str(), "../..", GCCCrossDirExists},
2901
2902 // The Freescale PPC SDK has the gcc libraries in
2903 // <sysroot>/usr/lib/<triple>/x.y.z so have a look there as well. Only do
2904 // this on Freescale triples, though, since some systems put a *lot* of
2905 // files in that location, not just GCC installation data.
2906 {CandidateTriple.str(), "..",
2907 TargetTriple.getVendor() == llvm::Triple::Freescale ||
2908 TargetTriple.getVendor() == llvm::Triple::OpenEmbedded}};
2909
2910 SmallVector<GCCInstallCandidate, 3> Installations;
2911 for (auto &Suffix : Suffixes) {
2912 if (!Suffix.Active)
2913 continue;
2914
2915 StringRef LibSuffix = Suffix.LibSuffix;
2916 std::error_code EC;
2917 for (llvm::vfs::directory_iterator
2918 LI = D.getVFS().dir_begin(LibDir + "/" + LibSuffix, EC),
2919 LE;
2920 !EC && LI != LE; LI = LI.increment(EC)) {
2921 StringRef VersionText = llvm::sys::path::filename(LI->path());
2922 GCCVersion CandidateVersion = GCCVersion::Parse(VersionText);
2923 if (CandidateVersion.Major != -1) // Filter obviously bad entries.
2924 if (!CandidateGCCInstallPaths.insert(std::string(LI->path())).second)
2925 continue; // Saw this path before; no need to look at it again.
2926 if (CandidateVersion.isOlderThan(4, 1, 1))
2927 continue;
2928 if (CandidateVersion <= SelectedInstallation.Version && IsValid)
2929 continue;
2930
2931 if (!ScanGCCForMultilibs(TargetTriple, Args, LI->path(),
2932 NeedsBiarchSuffix))
2933 continue;
2934
2935 GCCInstallCandidate Installation;
2936 Installation.Version = CandidateVersion;
2937 Installation.GCCTriple.setTriple(CandidateTriple);
2938 // FIXME: We hack together the directory name here instead of
2939 // using LI to ensure stable path separators across Windows and
2940 // Linux.
2941 Installation.GCCInstallPath =
2942 (LibDir + "/" + LibSuffix + "/" + VersionText).str();
2943 Installation.GCCParentLibPath =
2944 (Installation.GCCInstallPath + "/../" + Suffix.ReversePath).str();
2945 Installation.SelectedMultilib = getMultilib();
2946
2947 Installations.push_back(Installation);
2948 }
2949 }
2950
2951 IsValid |=
2952 SelectGCCInstallationDirectory(Installations, Args, SelectedInstallation);
2953}
2954
2955bool Generic_GCC::GCCInstallationDetector::ScanGentooConfigs(
2956 const llvm::Triple &TargetTriple, const ArgList &Args,
2957 const SmallVectorImpl<StringRef> &CandidateTriples,
2958 const SmallVectorImpl<StringRef> &CandidateBiarchTriples) {
2959 if (!D.getVFS().exists(concat(D.SysRoot, GentooConfigDir)))
2960 return false;
2961
2962 for (StringRef CandidateTriple : CandidateTriples) {
2963 if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple))
2964 return true;
2965 }
2966
2967 for (StringRef CandidateTriple : CandidateBiarchTriples) {
2968 if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple, true))
2969 return true;
2970 }
2971 return false;
2972}
2973
2974bool Generic_GCC::GCCInstallationDetector::ScanGentooGccConfig(
2975 const llvm::Triple &TargetTriple, const ArgList &Args,
2976 StringRef CandidateTriple, bool NeedsBiarchSuffix) {
2977 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> File =
2978 D.getVFS().getBufferForFile(concat(D.SysRoot, GentooConfigDir,
2979 "/config-" + CandidateTriple.str()));
2980 if (File) {
2981 SmallVector<StringRef, 2> Lines;
2982 File.get()->getBuffer().split(Lines, "\n");
2983 for (StringRef Line : Lines) {
2984 Line = Line.trim();
2985 // CURRENT=triple-version
2986 if (!Line.consume_front("CURRENT="))
2987 continue;
2988 // Process the config file pointed to by CURRENT.
2989 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> ConfigFile =
2990 D.getVFS().getBufferForFile(
2991 concat(D.SysRoot, GentooConfigDir, "/" + Line));
2992 std::pair<StringRef, StringRef> ActiveVersion = Line.rsplit('-');
2993 // List of paths to scan for libraries.
2994 SmallVector<StringRef, 4> GentooScanPaths;
2995 // Scan the Config file to find installed GCC libraries path.
2996 // Typical content of the GCC config file:
2997 // LDPATH="/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.x:/usr/lib/gcc/
2998 // (continued from previous line) x86_64-pc-linux-gnu/4.9.x/32"
2999 // MANPATH="/usr/share/gcc-data/x86_64-pc-linux-gnu/4.9.x/man"
3000 // INFOPATH="/usr/share/gcc-data/x86_64-pc-linux-gnu/4.9.x/info"
3001 // STDCXX_INCDIR="/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.x/include/g++-v4"
3002 // We are looking for the paths listed in LDPATH=... .
3003 if (ConfigFile) {
3004 SmallVector<StringRef, 2> ConfigLines;
3005 ConfigFile.get()->getBuffer().split(ConfigLines, "\n");
3006 for (StringRef ConfLine : ConfigLines) {
3007 ConfLine = ConfLine.trim();
3008 if (ConfLine.consume_front("LDPATH=")) {
3009 // Drop '"' from front and back if present.
3010 ConfLine.consume_back("\"");
3011 ConfLine.consume_front("\"");
3012 // Get all paths sperated by ':'
3013 ConfLine.split(GentooScanPaths, ':', -1, /*AllowEmpty*/ false);
3014 }
3015 }
3016 }
3017 // Test the path based on the version in /etc/env.d/gcc/config-{tuple}.
3018 std::string basePath = "/usr/lib/gcc/" + ActiveVersion.first.str() + "/"
3019 + ActiveVersion.second.str();
3020 GentooScanPaths.push_back(StringRef(basePath));
3021
3022 // Scan all paths for GCC libraries.
3023 for (const auto &GentooScanPath : GentooScanPaths) {
3024 std::string GentooPath = concat(D.SysRoot, GentooScanPath);
3025 if (D.getVFS().exists(GentooPath + "/crtbegin.o")) {
3026 if (!ScanGCCForMultilibs(TargetTriple, Args, GentooPath,
3027 NeedsBiarchSuffix))
3028 continue;
3029
3030 SelectedInstallation.Version =
3031 GCCVersion::Parse(ActiveVersion.second);
3032 SelectedInstallation.GCCInstallPath = GentooPath;
3033 SelectedInstallation.GCCParentLibPath =
3034 GentooPath + std::string("/../../..");
3035 SelectedInstallation.GCCTriple.setTriple(ActiveVersion.first);
3036 IsValid = true;
3037 return true;
3038 }
3039 }
3040 }
3041 }
3042
3043 return false;
3044}
3045
3046Generic_GCC::Generic_GCC(const Driver &D, const llvm::Triple &Triple,
3047 const ArgList &Args)
3048 : ToolChain(D, Triple, Args), GCCInstallation(D),
3049 CudaInstallation(D, Triple, Args), RocmInstallation(D, Triple, Args),
3050 SYCLInstallation(D, Triple, Args) {
3051 getProgramPaths().push_back(getDriver().Dir);
3052}
3053
3054Generic_GCC::~Generic_GCC() {}
3055
3056Tool *Generic_GCC::getTool(Action::ActionClass AC) const {
3057 switch (AC) {
3058 case Action::PreprocessJobClass:
3059 if (!Preprocess)
3060 Preprocess.reset(new clang::driver::tools::gcc::Preprocessor(*this));
3061 return Preprocess.get();
3062 case Action::CompileJobClass:
3063 if (!Compile)
3064 Compile.reset(new tools::gcc::Compiler(*this));
3065 return Compile.get();
3066 default:
3067 return ToolChain::getTool(AC);
3068 }
3069}
3070
3071Tool *Generic_GCC::buildAssembler() const {
3072 return new tools::gnutools::Assembler(*this);
3073}
3074
3075Tool *Generic_GCC::buildLinker() const { return new tools::gcc::Linker(*this); }
3076
3077void Generic_GCC::printVerboseInfo(raw_ostream &OS) const {
3078 // Print the information about how we detected the GCC installation.
3079 GCCInstallation.print(OS);
3080 CudaInstallation->print(OS);
3081 RocmInstallation->print(OS);
3082}
3083
3084ToolChain::UnwindTableLevel
3085Generic_GCC::getDefaultUnwindTableLevel(const ArgList &Args) const {
3086 switch (getArch()) {
3087 case llvm::Triple::aarch64:
3088 case llvm::Triple::aarch64_be:
3089 case llvm::Triple::amdgpu:
3090 case llvm::Triple::ppc:
3091 case llvm::Triple::ppcle:
3092 case llvm::Triple::ppc64:
3093 case llvm::Triple::ppc64le:
3094 case llvm::Triple::riscv32:
3095 case llvm::Triple::riscv64:
3096 case llvm::Triple::riscv32be:
3097 case llvm::Triple::riscv64be:
3098 case llvm::Triple::x86:
3099 case llvm::Triple::x86_64:
3100 return UnwindTableLevel::Asynchronous;
3101 default:
3102 return UnwindTableLevel::None;
3103 }
3104}
3105
3106bool Generic_GCC::isPICDefault() const {
3107 switch (getArch()) {
3108 case llvm::Triple::x86_64:
3109 return getTriple().isOSWindows();
3110 case llvm::Triple::mips64:
3111 case llvm::Triple::mips64el:
3112 return true;
3113 default:
3114 return false;
3115 }
3116}
3117
3118bool Generic_GCC::isPIEDefault(const llvm::opt::ArgList &Args) const {
3119 return false;
3120}
3121
3122bool Generic_GCC::isPICDefaultForced() const {
3123 return getArch() == llvm::Triple::x86_64 && getTriple().isOSWindows();
3124}
3125
3126bool Generic_GCC::IsIntegratedAssemblerDefault() const {
3127 switch (getTriple().getArch()) {
3128 case llvm::Triple::nvptx:
3129 case llvm::Triple::nvptx64:
3130 case llvm::Triple::xcore:
3131 return false;
3132 default:
3133 return true;
3134 }
3135}
3136
3137void Generic_GCC::PushPPaths(ToolChain::path_list &PPaths) {
3138 // Cross-compiling binutils and GCC installations (vanilla and openSUSE at
3139 // least) put various tools in a triple-prefixed directory off of the parent
3140 // of the GCC installation. We use the GCC triple here to ensure that we end
3141 // up with tools that support the same amount of cross compiling as the
3142 // detected GCC installation. For example, if we find a GCC installation
3143 // targeting x86_64, but it is a bi-arch GCC installation, it can also be
3144 // used to target i386.
3145 if (GCCInstallation.isValid()) {
3146 PPaths.push_back(Twine(GCCInstallation.getParentLibPath() + "/../" +
3147 GCCInstallation.getTriple().str() + "/bin")
3148 .str());
3149 }
3150}
3151
3152void Generic_GCC::AddMultilibPaths(const Driver &D,
3153 const std::string &SysRoot,
3154 const std::string &OSLibDir,
3155 const std::string &MultiarchTriple,
3156 path_list &Paths) {
3157 // Add the multilib suffixed paths where they are available.
3158 if (GCCInstallation.isValid()) {
3159 const Multilib &GCCMultilib = GCCInstallation.getMultilib();
3160 const llvm::Triple &GCCTriple = GCCInstallation.getTriple();
3161 const std::string &LibPath =
3162 std::string(GCCInstallation.getParentLibPath());
3163
3164 // Sourcery CodeBench MIPS toolchain holds some libraries under
3165 // a biarch-like suffix of the GCC installation.
3166 if (const auto &PathsCallback =
3167 GCCInstallation.getMultilibs().filePathsCallback())
3168 for (const auto &Path : PathsCallback(GCCMultilib))
3169 addPathIfExists(D, GCCInstallation.getInstallPath() + Path, Paths);
3170
3171 // Add lib/gcc/$triple/$version, with an optional /multilib suffix.
3172 addPathIfExists(
3173 D, GCCInstallation.getInstallPath() + GCCMultilib.gccSuffix(), Paths);
3174
3175 // Add lib/gcc/$triple/$libdir
3176 // For GCC built with --enable-version-specific-runtime-libs.
3177 addPathIfExists(D, GCCInstallation.getInstallPath() + "/../" + OSLibDir,
3178 Paths);
3179
3180 // GCC cross compiling toolchains will install target libraries which ship
3181 // as part of the toolchain under <prefix>/<triple>/<libdir> rather than as
3182 // any part of the GCC installation in
3183 // <prefix>/<libdir>/gcc/<triple>/<version>. This decision is somewhat
3184 // debatable, but is the reality today. We need to search this tree even
3185 // when we have a sysroot somewhere else. It is the responsibility of
3186 // whomever is doing the cross build targeting a sysroot using a GCC
3187 // installation that is *not* within the system root to ensure two things:
3188 //
3189 // 1) Any DSOs that are linked in from this tree or from the install path
3190 // above must be present on the system root and found via an
3191 // appropriate rpath.
3192 // 2) There must not be libraries installed into
3193 // <prefix>/<triple>/<libdir> unless they should be preferred over
3194 // those within the system root.
3195 //
3196 // Note that this matches the GCC behavior. See the below comment for where
3197 // Clang diverges from GCC's behavior.
3198 addPathIfExists(D,
3199 LibPath + "/../" + GCCTriple.str() + "/lib/../" + OSLibDir +
3200 GCCMultilib.osSuffix(),
3201 Paths);
3202
3203 // If the GCC installation we found is inside of the sysroot, we want to
3204 // prefer libraries installed in the parent prefix of the GCC installation.
3205 // It is important to *not* use these paths when the GCC installation is
3206 // outside of the system root as that can pick up unintended libraries.
3207 // This usually happens when there is an external cross compiler on the
3208 // host system, and a more minimal sysroot available that is the target of
3209 // the cross. Note that GCC does include some of these directories in some
3210 // configurations but this seems somewhere between questionable and simply
3211 // a bug.
3212 if (StringRef(LibPath).starts_with(SysRoot))
3213 addPathIfExists(D, LibPath + "/../" + OSLibDir, Paths);
3214 }
3215}
3216
3217void Generic_GCC::AddMultiarchPaths(const Driver &D,
3218 const std::string &SysRoot,
3219 const std::string &OSLibDir,
3220 path_list &Paths) {
3221 if (GCCInstallation.isValid()) {
3222 const std::string &LibPath =
3223 std::string(GCCInstallation.getParentLibPath());
3224 const llvm::Triple &GCCTriple = GCCInstallation.getTriple();
3225 const Multilib &Multilib = GCCInstallation.getMultilib();
3226 addPathIfExists(
3227 D, LibPath + "/../" + GCCTriple.str() + "/lib" + Multilib.osSuffix(),
3228 Paths);
3229 }
3230}
3231
3232void Generic_GCC::AddMultilibIncludeArgs(const ArgList &DriverArgs,
3233 ArgStringList &CC1Args) const {
3234 // Add include directories specific to the selected multilib set and multilib.
3235 if (!GCCInstallation.isValid())
3236 return;
3237 // gcc TOOL_INCLUDE_DIR.
3238 const llvm::Triple &GCCTriple = GCCInstallation.getTriple();
3239 std::string LibPath(GCCInstallation.getParentLibPath());
3240 ToolChain::addSystemInclude(DriverArgs, CC1Args,
3241 Twine(LibPath) + "/../" + GCCTriple.str() +
3242 "/include");
3243
3244 const auto &Callback = GCCInstallation.getMultilibs().includeDirsCallback();
3245 if (Callback) {
3246 for (const auto &Path : Callback(GCCInstallation.getMultilib()))
3247 addExternCSystemIncludeIfExists(DriverArgs, CC1Args,
3248 GCCInstallation.getInstallPath() + Path);
3249 }
3250}
3251
3252void Generic_GCC::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
3253 ArgStringList &CC1Args) const {
3254 if (DriverArgs.hasArg(options::OPT_nostdinc, options::OPT_nostdincxx,
3255 options::OPT_nostdlibinc))
3256 return;
3257
3258 switch (GetCXXStdlibType(DriverArgs)) {
3259 case ToolChain::CST_Libcxx:
3260 addLibCxxIncludePaths(DriverArgs, CC1Args);
3261 break;
3262
3263 case ToolChain::CST_Libstdcxx:
3264 addLibStdCxxIncludePaths(DriverArgs, CC1Args);
3265 break;
3266 }
3267}
3268
3269void Generic_GCC::addSYCLIncludeArgs(const ArgList &DriverArgs,
3270 ArgStringList &CC1Args) const {
3271 SYCLInstallation->addSYCLIncludeArgs(DriverArgs, CC1Args);
3272}
3273
3274void
3275Generic_GCC::addLibCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
3276 llvm::opt::ArgStringList &CC1Args) const {
3277 const Driver &D = getDriver();
3278 std::string SysRoot = computeSysRoot();
3279 if (SysRoot.empty())
3280 SysRoot = llvm::sys::path::get_separator();
3281
3282 auto AddIncludePath = [&](StringRef Path, bool TargetDirRequired = false) {
3283 std::string Version = detectLibcxxVersion(Path);
3284 if (Version.empty())
3285 return false;
3286
3287 // First add the per-target include path if it exists.
3288 bool TargetDirExists = false;
3289 std::optional<std::string> TargetIncludeDir = getTargetSubDirPath(Path);
3290 if (TargetIncludeDir) {
3291 SmallString<128> TargetDir(*TargetIncludeDir);
3292 llvm::sys::path::append(TargetDir, "c++", Version);
3293 if (D.getVFS().exists(TargetDir)) {
3294 addSystemInclude(DriverArgs, CC1Args, TargetDir);
3295 TargetDirExists = true;
3296 }
3297 }
3298 if (TargetDirRequired && !TargetDirExists)
3299 return false;
3300
3301 // Second add the generic one.
3302 SmallString<128> GenericDir(Path);
3303 llvm::sys::path::append(GenericDir, "c++", Version);
3304 addSystemInclude(DriverArgs, CC1Args, GenericDir);
3305 return true;
3306 };
3307
3308 // Android only uses the libc++ headers installed alongside the toolchain if
3309 // they contain an Android-specific target include path, otherwise they're
3310 // incompatible with the NDK libraries.
3311 SmallString<128> DriverIncludeDir(getDriver().Dir);
3312 llvm::sys::path::append(DriverIncludeDir, "..", "include");
3313 if (AddIncludePath(DriverIncludeDir,
3314 /*TargetDirRequired=*/getTriple().isAndroid()))
3315 return;
3316 // If this is a development, non-installed, clang, libcxx will
3317 // not be found at ../include/c++ but it likely to be found at
3318 // one of the following two locations:
3319 SmallString<128> UsrLocalIncludeDir(SysRoot);
3320 llvm::sys::path::append(UsrLocalIncludeDir, "usr", "local", "include");
3321 if (AddIncludePath(UsrLocalIncludeDir))
3322 return;
3323 SmallString<128> UsrIncludeDir(SysRoot);
3324 llvm::sys::path::append(UsrIncludeDir, "usr", "include");
3325 if (AddIncludePath(UsrIncludeDir))
3326 return;
3327}
3328
3329static bool addLibStdCXXIncludePaths(llvm::vfs::FileSystem &vfs,
3330 Twine IncludeDir, StringRef Triple,
3331 Twine IncludeSuffix,
3332 const llvm::opt::ArgList &DriverArgs,
3333 llvm::opt::ArgStringList &CC1Args,
3334 bool DetectDebian = false) {
3335
3336 if (!vfs.exists(IncludeDir))
3337 return false;
3338
3339 // Debian native gcc uses g++-multiarch-incdir.diff which uses
3340 // include/x86_64-linux-gnu/c++/10$IncludeSuffix instead of
3341 // include/c++/10/x86_64-linux-gnu$IncludeSuffix.
3342 std::string Dir = IncludeDir.str();
3343 StringRef Include =
3344 llvm::sys::path::parent_path(llvm::sys::path::parent_path(Dir));
3345 std::string Path =
3346 (Include + "/" + Triple + Dir.substr(Include.size()) + IncludeSuffix)
3347 .str();
3348 if (DetectDebian && !vfs.exists(Path))
3349 return false;
3350
3351 // GPLUSPLUS_INCLUDE_DIR
3352 ToolChain::addSystemInclude(DriverArgs, CC1Args, IncludeDir);
3353 // GPLUSPLUS_TOOL_INCLUDE_DIR. If Triple is not empty, add a target-dependent
3354 // include directory.
3355 if (DetectDebian)
3356 ToolChain::addSystemInclude(DriverArgs, CC1Args, Path);
3357 else if (!Triple.empty())
3358 ToolChain::addSystemInclude(DriverArgs, CC1Args,
3359 IncludeDir + "/" + Triple + IncludeSuffix);
3360 // GPLUSPLUS_BACKWARD_INCLUDE_DIR
3361 ToolChain::addSystemInclude(DriverArgs, CC1Args, IncludeDir + "/backward");
3362 return true;
3363}
3364
3365bool Generic_GCC::addLibStdCXXIncludePaths(Twine IncludeDir, StringRef Triple,
3366 Twine IncludeSuffix,
3367 const llvm::opt::ArgList &DriverArgs,
3368 llvm::opt::ArgStringList &CC1Args,
3369 bool DetectDebian) const {
3370 return ::addLibStdCXXIncludePaths(getVFS(), IncludeDir, Triple, IncludeSuffix,
3371 DriverArgs, CC1Args, DetectDebian);
3372}
3373
3374bool Generic_GCC::GCCInstallCandidate::addGCCLibStdCxxIncludePaths(
3375 llvm::vfs::FileSystem &vfs, const llvm::opt::ArgList &DriverArgs,
3376 llvm::opt::ArgStringList &CC1Args, StringRef DebianMultiarch) const {
3377
3378 // By default, look for the C++ headers in an include directory adjacent to
3379 // the lib directory of the GCC installation. Note that this is expect to be
3380 // equivalent to '/usr/include/c++/X.Y' in almost all cases.
3381 StringRef LibDir = getParentLibPath();
3382 StringRef InstallDir = getInstallPath();
3383 StringRef TripleStr = getTriple().str();
3384 const Multilib &Multilib = getMultilib();
3385 const GCCVersion &Version = getVersion();
3386
3387 // Try /../$triple/include/c++/$version (gcc --print-multiarch is not empty).
3388 if (::addLibStdCXXIncludePaths(
3389 vfs,
3390 LibDir.str() + "/../" + TripleStr + "/include/c++/" + Version.Text,
3391 TripleStr, Multilib.includeSuffix(), DriverArgs, CC1Args))
3392 return true;
3393
3394 // Try /gcc/$triple/$version/include/c++/ (gcc --print-multiarch is not
3395 // empty). Like above but for GCC built with
3396 // --enable-version-specific-runtime-libs.
3397 if (::addLibStdCXXIncludePaths(vfs,
3398 LibDir.str() + "/gcc/" + TripleStr + "/" +
3399 Version.Text + "/include/c++/",
3400 TripleStr, Multilib.includeSuffix(),
3401 DriverArgs, CC1Args))
3402 return true;
3403
3404 // Detect Debian g++-multiarch-incdir.diff.
3405 if (::addLibStdCXXIncludePaths(
3406 vfs, LibDir.str() + "/../include/c++/" + Version.Text,
3407 DebianMultiarch, Multilib.includeSuffix(), DriverArgs, CC1Args,
3408 /*Debian=*/true))
3409 return true;
3410
3411 // Try /../include/c++/$version (gcc --print-multiarch is empty).
3412 if (::addLibStdCXXIncludePaths(
3413 vfs, LibDir.str() + "/../include/c++/" + Version.Text, TripleStr,
3414 Multilib.includeSuffix(), DriverArgs, CC1Args))
3415 return true;
3416
3417 // Otherwise, fall back on a bunch of options which don't use multiarch
3418 // layouts for simplicity.
3419 const std::string LibStdCXXIncludePathCandidates[] = {
3420 // Gentoo is weird and places its headers inside the GCC install,
3421 // so if the first attempt to find the headers fails, try these patterns.
3422 InstallDir.str() + "/include/g++-v" + Version.Text,
3423 InstallDir.str() + "/include/g++-v" + Version.MajorStr + "." +
3424 Version.MinorStr,
3425 InstallDir.str() + "/include/g++-v" + Version.MajorStr,
3426 };
3427
3428 for (const auto &IncludePath : LibStdCXXIncludePathCandidates) {
3429 if (::addLibStdCXXIncludePaths(vfs, IncludePath, TripleStr,
3430 Multilib.includeSuffix(), DriverArgs,
3431 CC1Args))
3432 return true;
3433 }
3434 return false;
3435}
3436
3437bool Generic_GCC::GCCInstallationDetector::
3438 GCCInstallationHasLibStdcxxIncludePaths(
3439 const GCCInstallCandidate &GCCInstallation,
3440 const llvm::opt::ArgList &DriverArgs) const {
3441 StringRef DebianMultiarch =
3442 TripleToDebianMultiarch(GCCInstallation.getTriple());
3443
3444 // The following function checks for libstdc++ include paths and
3445 // adds them to the provided argument list. Here we just need the
3446 // check.
3447 llvm::opt::ArgStringList dummyCC1Args;
3448 return GCCInstallation.addGCCLibStdCxxIncludePaths(
3449 D.getVFS(), DriverArgs, dummyCC1Args, DebianMultiarch);
3450}
3451
3452bool Generic_GCC::addGCCLibStdCxxIncludePaths(
3453 const llvm::opt::ArgList &DriverArgs,
3454 llvm::opt::ArgStringList &CC1Args) const {
3455 assert(GCCInstallation.isValid());
3456
3457 // Detect Debian g++-multiarch-incdir.diff.
3458 StringRef DebianMultiarch =
3459 GCCInstallation.TripleToDebianMultiarch(GCCInstallation.getTriple());
3460
3461 return GCCInstallation.getSelectedInstallation().addGCCLibStdCxxIncludePaths(
3462 getVFS(), DriverArgs, CC1Args, DebianMultiarch);
3463}
3464
3465void
3466Generic_GCC::addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
3467 llvm::opt::ArgStringList &CC1Args) const {
3468 if (!GCCInstallation.isValid())
3469 return;
3470
3471 GCCInstallation.getSelectedInstallation().addGCCLibStdCxxIncludePaths(
3472 getVFS(), DriverArgs, CC1Args, GCCInstallation.getTriple().str());
3473}
3474
3475llvm::opt::DerivedArgList *
3476Generic_GCC::TranslateArgs(const llvm::opt::DerivedArgList &Args, BoundArch BA,
3477 Action::OffloadKind DeviceOffloadKind) const {
3478 if (DeviceOffloadKind == Action::OFK_None ||
3479 DeviceOffloadKind == Action::OFK_Host)
3480 return nullptr;
3481
3482 DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs());
3483
3484 // Filter all the arguments we don't care passing to the offloading
3485 // toolchain as they can mess up with the creation of a shared library.
3486 const llvm::DenseSet<unsigned> OpenMPFiltered{
3487 options::OPT_shared, options::OPT_dynamic, options::OPT_static,
3488 options::OPT_fPIE, options::OPT_fno_PIE, options::OPT_fpie,
3489 options::OPT_fno_pie};
3490 for (auto *A : Args)
3491 if (DeviceOffloadKind != Action::OFK_OpenMP ||
3492 !OpenMPFiltered.contains(A->getOption().getID()))
3493 DAL->append(A);
3494
3495 // Request a shared library for CPU offloading. Given that these options
3496 // are decided implicitly, they do not refer to any base argument.
3497 const OptTable &Opts = getDriver().getOpts();
3498 if (DeviceOffloadKind == Action::OFK_OpenMP) {
3499 DAL->AddFlagArg(/*BaseArg=*/nullptr, Opts.getOption(options::OPT_shared));
3500 DAL->AddFlagArg(/*BaseArg=*/nullptr, Opts.getOption(options::OPT_fPIC));
3501 }
3502
3503 // Add the bound architecture to the arguments list if present.
3504 if (!BA.empty()) {
3505 options::ID Opt = getTriple().isARM() || getTriple().isPPC() ||
3506 getTriple().isAArch64() || getTriple().isAMDGPU()
3507 ? options::OPT_mcpu_EQ
3508 : options::OPT_march_EQ;
3509 DAL->eraseArg(Opt);
3510 DAL->AddJoinedArg(nullptr, Opts.getOption(Opt), BA.ArchName);
3511 }
3512
3513 return DAL;
3514}
3515
3516void Generic_ELF::anchor() {}
3517
3518void Generic_ELF::addClangTargetOptions(const ArgList &DriverArgs,
3519 ArgStringList &CC1Args, BoundArch BA,
3520 Action::OffloadKind) const {
3521 if (!DriverArgs.hasFlag(options::OPT_fuse_init_array,
3522 options::OPT_fno_use_init_array, true))
3523 CC1Args.push_back("-fno-use-init-array");
3524}
findRISCVMultilibs
static bool findRISCVMultilibs(const Driver &D, const llvm::Triple &TargetTriple, const ArgList &Args, DetectedMultilibs &Result)
Definition BareMetal.cpp:64
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:1555
findAndroidArmMultilibs
static void findAndroidArmMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, DetectedMultilibs &Result)
Definition Gnu.cpp:1484
findMipsCsMultilibs
static bool findMipsCsMultilibs(const Driver &D, const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition Gnu.cpp:979
isArmOrThumbArch
static bool isArmOrThumbArch(llvm::Triple::ArchType Arch)
Definition Gnu.cpp:957
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:1833
isMips16
static bool isMips16(const ArgList &Args)
Definition Gnu.cpp:965
getGCCToolchainDir
static llvm::StringRef getGCCToolchainDir(const ArgList &Args, llvm::StringRef SysRoot)
Definition Gnu.cpp:2084
findMSP430Multilibs
static bool findMSP430Multilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, DetectedMultilibs &Result)
Definition Gnu.cpp:1527
getStatic
static bool getStatic(const ArgList &Args)
Definition Gnu.cpp:222
isMipsEL
static bool isMipsEL(llvm::Triple::ArchType Arch)
Definition Gnu.cpp:961
findMipsMuslMultilibs
static bool findMipsMuslMultilibs(const Driver &D, const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition Gnu.cpp:1084
findRISCVBareMetalMultilibs
static void findRISCVBareMetalMultilibs(const Driver &D, const llvm::Triple &TargetTriple, StringRef Path, const ArgList &Args, DetectedMultilibs &Result)
Definition Gnu.cpp:1740
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:1631
isMSP430
static bool isMSP430(llvm::Triple::ArchType Arch)
Definition Gnu.cpp:975
isSoftFloatABI
static bool isSoftFloatABI(const ArgList &Args)
Definition Gnu.cpp:946
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:3329
findMipsImgMultilibs
static bool findMipsImgMultilibs(const Driver &D, const Multilib::flags_list &Flags, FilterNonExistent &NonExistent, DetectedMultilibs &Result)
Definition Gnu.cpp:1306
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:1119
isMicroMips
static bool isMicroMips(const ArgList &Args)
Definition Gnu.cpp:970
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:93
clang::driver::Driver::SysRoot
std::string SysRoot
sysroot, if present
Definition Driver.h:193
clang::driver::Driver::DyldPrefix
std::string DyldPrefix
Dynamic loader prefix, if present.
Definition Driver.h:196
clang::driver::Driver::Diag
DiagnosticBuilder Diag(unsigned DiagID) const
Definition Driver.h:157
clang::driver::Driver::getOpts
const llvm::opt::OptTable & getOpts() const
Definition Driver.h:405
clang::driver::Driver::getVFS
llvm::vfs::FileSystem & getVFS() const
Definition Driver.h:409
clang::driver::Driver::IsFlangMode
bool IsFlangMode() const
Whether the driver should invoke flang for fortran inputs.
Definition Driver.h:233
clang::driver::Driver::getCCCGenericGCCName
const std::string & getCCCGenericGCCName() const
Name to use when invoking gcc/g++.
Definition Driver.h:399
clang::driver::Driver::CCCIsCXX
bool CCCIsCXX() const
Whether the driver should follow g++ like behavior.
Definition Driver.h:220
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:92
clang::driver::ToolChain::addSystemInclude
static void addSystemInclude(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, const Twine &Path)
Utility function to add a system include directory to CC1 arguments.
Definition ToolChain.cpp:1728
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:1548
clang::driver::ToolChain::GetRuntimeLibType
virtual RuntimeLibType GetRuntimeLibType(const llvm::opt::ArgList &Args) const
Definition ToolChain.cpp:1574
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:1817
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:298
clang::driver::ToolChain::getDriver
const Driver & getDriver() const
Definition ToolChain.h:282
clang::driver::ToolChain::detectLibcxxVersion
virtual std::string detectLibcxxVersion(StringRef IncludePath) const
Definition ToolChain.cpp:1762
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:1755
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:1890
clang::driver::ToolChain::getProgramPaths
path_list & getProgramPaths()
Definition ToolChain.h:325
clang::driver::ToolChain::addExternCSystemIncludeIfExists
static void addExternCSystemIncludeIfExists(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, const Twine &Path)
Definition ToolChain.cpp:1720
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:1417
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:877
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:1823
clang::driver::ToolChain::getTriple
const llvm::Triple & getTriple() const
Definition ToolChain.h:284
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:307
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:1299
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:533
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:1842
clang::driver::ToolChain::GetCXXStdlibType
virtual CXXStdlibType GetCXXStdlibType(const llvm::opt::ArgList &Args) const
Definition ToolChain.cpp:1637
clang::driver::ToolChain::getTool
virtual Tool * getTool(Action::ActionClass AC) const
Definition ToolChain.cpp:783
clang::driver::ToolChain::GetFilePathIfExists
std::optional< std::string > GetFilePathIfExists(const char *Name) const
Definition ToolChain.cpp:1288
clang::driver::ToolChain::path_list
SmallVector< std::string, 16 > path_list
Definition ToolChain.h:94
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:3518
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::print
void print(raw_ostream &OS) const
Print information about the detected GCC installation.
Definition Gnu.cpp:2246
clang::driver::toolchains::Generic_GCC::GCCInstallationDetector::getBiarchSibling
bool getBiarchSibling(Multilib &M) const
Get the biarch sibling multilib (if it exists).
Definition Gnu.cpp:2263
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:2108
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:3152
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:3137
clang::driver::toolchains::Generic_GCC::getTool
Tool * getTool(Action::ActionClass AC) const override
Definition Gnu.cpp:3056
clang::driver::toolchains::Generic_GCC::Generic_GCC
Generic_GCC(const Driver &D, const llvm::Triple &Triple, const llvm::opt::ArgList &Args)
Definition Gnu.cpp:3046
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:3232
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:3476
clang::driver::toolchains::Generic_GCC::IsIntegratedAssemblerDefault
bool IsIntegratedAssemblerDefault() const override
IsIntegratedAssemblerDefault - Does this tool chain enable -integrated-as by default.
Definition Gnu.cpp:3126
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:3252
clang::driver::toolchains::Generic_GCC::buildLinker
Tool * buildLinker() const override
Definition Gnu.cpp:3075
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:3122
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:3118
clang::driver::toolchains::Generic_GCC::printVerboseInfo
void printVerboseInfo(raw_ostream &OS) const override
Dispatch to the specific toolchain for verbose printing.
Definition Gnu.cpp:3077
clang::driver::toolchains::Generic_GCC::~Generic_GCC
~Generic_GCC() override
Definition Gnu.cpp:3054
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:3269
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:3217
clang::driver::toolchains::Generic_GCC::buildAssembler
Tool * buildAssembler() const override
Definition Gnu.cpp:3071
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:3085
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:3365
clang::driver::toolchains::Generic_GCC::isPICDefault
bool isPICDefault() const override
Test whether this toolchain defaults to PIC.
Definition Gnu.cpp:3106
clang::driver::toolchains::Generic_GCC::addGCCLibStdCxxIncludePaths
bool addGCCLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC) const
Definition Gnu.cpp:3452
clang::driver::toolchains::Generic_GCC::addLibCxxIncludePaths
virtual void addLibCxxIncludePaths(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Definition Gnu.cpp:3275
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:3466
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:610
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::addSanitizerRuntimes
bool addSanitizerRuntimes(const ToolChain &TC, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs, Compilation &C)
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:2662
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::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:2419
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:49
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:3374
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:1966
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:2010
Generated on for clang by doxygen 1.14.0