1 //===--- Gnu.cpp - Gnu Tool and ToolChain Implementations -------*- C++ -*-===//
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
7 //===----------------------------------------------------------------------===//
11 #include "Arch/Mips.h"
13 #include "Arch/RISCV.h"
14 #include "Arch/Sparc.h"
15 #include "Arch/SystemZ.h"
16 #include "CommonArgs.h"
18 #include "clang/Config/config.h" // for GCC_INSTALL_PREFIX
19 #include "clang/Driver/Compilation.h"
20 #include "clang/Driver/Driver.h"
21 #include "clang/Driver/DriverDiagnostic.h"
22 #include "clang/Driver/Options.h"
23 #include "clang/Driver/Tool.h"
24 #include "clang/Driver/ToolChain.h"
25 #include "llvm/Option/ArgList.h"
26 #include "llvm/Support/CodeGen.h"
27 #include "llvm/Support/Path.h"
28 #include "llvm/Support/TargetParser.h"
29 #include "llvm/Support/VirtualFileSystem.h"
30 #include <system_error>
32 using namespace clang::driver;
33 using namespace clang::driver::toolchains;
34 using namespace clang;
35 using namespace llvm::opt;
37 using tools::addMultilibFlag;
39 void tools::GnuTool::anchor() {}
41 static bool forwardToGCC(const Option &O) {
42 // Don't forward inputs from the original command line. They are added from
44 return O.getKind() != Option::InputClass &&
45 !O.hasFlag(options::DriverOption) && !O.hasFlag(options::LinkerInput);
48 // Switch CPU names not recognized by GNU assembler to a close CPU that it does
49 // recognize, instead of a lower march from being picked in the absence of a cpu
51 static void normalizeCPUNamesForAssembler(const ArgList &Args,
52 ArgStringList &CmdArgs) {
53 if (Arg *A = Args.getLastArg(options::OPT_mcpu_EQ)) {
54 StringRef CPUArg(A->getValue());
55 if (CPUArg.equals_lower("krait"))
56 CmdArgs.push_back("-mcpu=cortex-a15");
57 else if(CPUArg.equals_lower("kryo"))
58 CmdArgs.push_back("-mcpu=cortex-a57");
60 Args.AddLastArg(CmdArgs, options::OPT_mcpu_EQ);
64 void tools::gcc::Common::ConstructJob(Compilation &C, const JobAction &JA,
65 const InputInfo &Output,
66 const InputInfoList &Inputs,
68 const char *LinkingOutput) const {
69 const Driver &D = getToolChain().getDriver();
70 ArgStringList CmdArgs;
72 for (const auto &A : Args) {
73 if (forwardToGCC(A->getOption())) {
74 // It is unfortunate that we have to claim here, as this means
75 // we will basically never report anything interesting for
76 // platforms using a generic gcc, even if we are just using gcc
77 // to get to the assembler.
80 // Don't forward any -g arguments to assembly steps.
81 if (isa<AssembleJobAction>(JA) &&
82 A->getOption().matches(options::OPT_g_Group))
85 // Don't forward any -W arguments to assembly and link steps.
86 if ((isa<AssembleJobAction>(JA) || isa<LinkJobAction>(JA)) &&
87 A->getOption().matches(options::OPT_W_Group))
90 // Don't forward -mno-unaligned-access since GCC doesn't understand
91 // it and because it doesn't affect the assembly or link steps.
92 if ((isa<AssembleJobAction>(JA) || isa<LinkJobAction>(JA)) &&
93 (A->getOption().matches(options::OPT_munaligned_access) ||
94 A->getOption().matches(options::OPT_mno_unaligned_access)))
97 A->render(Args, CmdArgs);
101 RenderExtraToolArgs(JA, CmdArgs);
103 // If using a driver driver, force the arch.
104 if (getToolChain().getTriple().isOSDarwin()) {
105 CmdArgs.push_back("-arch");
107 Args.MakeArgString(getToolChain().getDefaultUniversalArchName()));
110 // Try to force gcc to match the tool chain we want, if we recognize
113 // FIXME: The triple class should directly provide the information we want
115 switch (getToolChain().getArch()) {
118 case llvm::Triple::x86:
119 case llvm::Triple::ppc:
120 CmdArgs.push_back("-m32");
122 case llvm::Triple::x86_64:
123 case llvm::Triple::ppc64:
124 case llvm::Triple::ppc64le:
125 CmdArgs.push_back("-m64");
127 case llvm::Triple::sparcel:
128 CmdArgs.push_back("-EL");
132 if (Output.isFilename()) {
133 CmdArgs.push_back("-o");
134 CmdArgs.push_back(Output.getFilename());
136 assert(Output.isNothing() && "Unexpected output");
137 CmdArgs.push_back("-fsyntax-only");
140 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
142 // Only pass -x if gcc will understand it; otherwise hope gcc
143 // understands the suffix correctly. The main use case this would go
144 // wrong in is for linker inputs if they happened to have an odd
145 // suffix; really the only way to get this to happen is a command
146 // like '-x foobar a.c' which will treat a.c like a linker input.
148 // FIXME: For the linker case specifically, can we safely convert
149 // inputs into '-Wl,' options?
150 for (const auto &II : Inputs) {
151 // Don't try to pass LLVM or AST inputs to a generic gcc.
152 if (types::isLLVMIR(II.getType()))
153 D.Diag(clang::diag::err_drv_no_linker_llvm_support)
154 << getToolChain().getTripleString();
155 else if (II.getType() == types::TY_AST)
156 D.Diag(diag::err_drv_no_ast_support) << getToolChain().getTripleString();
157 else if (II.getType() == types::TY_ModuleFile)
158 D.Diag(diag::err_drv_no_module_support)
159 << getToolChain().getTripleString();
161 if (types::canTypeBeUserSpecified(II.getType())) {
162 CmdArgs.push_back("-x");
163 CmdArgs.push_back(types::getTypeName(II.getType()));
167 CmdArgs.push_back(II.getFilename());
169 const Arg &A = II.getInputArg();
171 // Reverse translate some rewritten options.
172 if (A.getOption().matches(options::OPT_Z_reserved_lib_stdcxx)) {
173 CmdArgs.push_back("-lstdc++");
177 // Don't render as input, we need gcc to do the translations.
178 A.render(Args, CmdArgs);
182 const std::string &customGCCName = D.getCCCGenericGCCName();
184 if (!customGCCName.empty())
185 GCCName = customGCCName.c_str();
186 else if (D.CCCIsCXX()) {
191 const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath(GCCName));
192 C.addCommand(std::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
195 void tools::gcc::Preprocessor::RenderExtraToolArgs(
196 const JobAction &JA, ArgStringList &CmdArgs) const {
197 CmdArgs.push_back("-E");
200 void tools::gcc::Compiler::RenderExtraToolArgs(const JobAction &JA,
201 ArgStringList &CmdArgs) const {
202 const Driver &D = getToolChain().getDriver();
204 switch (JA.getType()) {
205 // If -flto, etc. are present then make sure not to force assembly output.
206 case types::TY_LLVM_IR:
207 case types::TY_LTO_IR:
208 case types::TY_LLVM_BC:
209 case types::TY_LTO_BC:
210 CmdArgs.push_back("-c");
212 // We assume we've got an "integrated" assembler in that gcc will produce an
213 // object file itself.
214 case types::TY_Object:
215 CmdArgs.push_back("-c");
217 case types::TY_PP_Asm:
218 CmdArgs.push_back("-S");
220 case types::TY_Nothing:
221 CmdArgs.push_back("-fsyntax-only");
224 D.Diag(diag::err_drv_invalid_gcc_output_type) << getTypeName(JA.getType());
228 void tools::gcc::Linker::RenderExtraToolArgs(const JobAction &JA,
229 ArgStringList &CmdArgs) const {
230 // The types are (hopefully) good enough.
233 // On Arm the endianness of the output file is determined by the target and
234 // can be overridden by the pseudo-target flags '-mlittle-endian'/'-EL' and
235 // '-mbig-endian'/'-EB'. Unlike other targets the flag does not result in a
236 // normalized triple so we must handle the flag here.
237 static bool isArmBigEndian(const llvm::Triple &Triple,
238 const ArgList &Args) {
239 bool IsBigEndian = false;
240 switch (Triple.getArch()) {
241 case llvm::Triple::armeb:
242 case llvm::Triple::thumbeb:
245 case llvm::Triple::arm:
246 case llvm::Triple::thumb:
247 if (Arg *A = Args.getLastArg(options::OPT_mlittle_endian,
248 options::OPT_mbig_endian))
249 IsBigEndian = !A->getOption().matches(options::OPT_mlittle_endian);
257 static const char *getLDMOption(const llvm::Triple &T, const ArgList &Args) {
258 switch (T.getArch()) {
259 case llvm::Triple::x86:
263 case llvm::Triple::aarch64:
264 return "aarch64linux";
265 case llvm::Triple::aarch64_be:
266 return "aarch64linuxb";
267 case llvm::Triple::arm:
268 case llvm::Triple::thumb:
269 case llvm::Triple::armeb:
270 case llvm::Triple::thumbeb:
271 return isArmBigEndian(T, Args) ? "armelfb_linux_eabi" : "armelf_linux_eabi";
272 case llvm::Triple::ppc:
273 return "elf32ppclinux";
274 case llvm::Triple::ppc64:
276 case llvm::Triple::ppc64le:
278 case llvm::Triple::riscv32:
279 return "elf32lriscv";
280 case llvm::Triple::riscv64:
281 return "elf64lriscv";
282 case llvm::Triple::sparc:
283 case llvm::Triple::sparcel:
284 return "elf32_sparc";
285 case llvm::Triple::sparcv9:
286 return "elf64_sparc";
287 case llvm::Triple::mips:
288 return "elf32btsmip";
289 case llvm::Triple::mipsel:
290 return "elf32ltsmip";
291 case llvm::Triple::mips64:
292 if (tools::mips::hasMipsAbiArg(Args, "n32") ||
293 T.getEnvironment() == llvm::Triple::GNUABIN32)
294 return "elf32btsmipn32";
295 return "elf64btsmip";
296 case llvm::Triple::mips64el:
297 if (tools::mips::hasMipsAbiArg(Args, "n32") ||
298 T.getEnvironment() == llvm::Triple::GNUABIN32)
299 return "elf32ltsmipn32";
300 return "elf64ltsmip";
301 case llvm::Triple::systemz:
303 case llvm::Triple::x86_64:
304 if (T.getEnvironment() == llvm::Triple::GNUX32)
305 return "elf32_x86_64";
312 static bool getPIE(const ArgList &Args, const ToolChain &TC) {
313 if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_static) ||
314 Args.hasArg(options::OPT_r) || Args.hasArg(options::OPT_static_pie))
317 Arg *A = Args.getLastArg(options::OPT_pie, options::OPT_no_pie,
320 return TC.isPIEDefault();
321 return A->getOption().matches(options::OPT_pie);
324 static bool getStaticPIE(const ArgList &Args, const ToolChain &TC) {
325 bool HasStaticPIE = Args.hasArg(options::OPT_static_pie);
326 // -no-pie is an alias for -nopie. So, handling -nopie takes care of
328 if (HasStaticPIE && Args.hasArg(options::OPT_nopie)) {
329 const Driver &D = TC.getDriver();
330 const llvm::opt::OptTable &Opts = D.getOpts();
331 const char *StaticPIEName = Opts.getOptionName(options::OPT_static_pie);
332 const char *NoPIEName = Opts.getOptionName(options::OPT_nopie);
333 D.Diag(diag::err_drv_cannot_mix_options) << StaticPIEName << NoPIEName;
338 static bool getStatic(const ArgList &Args) {
339 return Args.hasArg(options::OPT_static) &&
340 !Args.hasArg(options::OPT_static_pie);
343 void tools::gnutools::Linker::ConstructJob(Compilation &C, const JobAction &JA,
344 const InputInfo &Output,
345 const InputInfoList &Inputs,
347 const char *LinkingOutput) const {
348 // FIXME: The Linker class constructor takes a ToolChain and not a
349 // Generic_ELF, so the static_cast might return a reference to a invalid
350 // instance (see PR45061). Ideally, the Linker constructor needs to take a
351 // Generic_ELF instead.
352 const toolchains::Generic_ELF &ToolChain =
353 static_cast<const toolchains::Generic_ELF &>(getToolChain());
354 const Driver &D = ToolChain.getDriver();
356 const llvm::Triple &Triple = getToolChain().getEffectiveTriple();
358 const llvm::Triple::ArchType Arch = ToolChain.getArch();
359 const bool isAndroid = ToolChain.getTriple().isAndroid();
360 const bool IsIAMCU = ToolChain.getTriple().isOSIAMCU();
361 const bool IsPIE = getPIE(Args, ToolChain);
362 const bool IsStaticPIE = getStaticPIE(Args, ToolChain);
363 const bool IsStatic = getStatic(Args);
364 const bool HasCRTBeginEndFiles =
365 ToolChain.getTriple().hasEnvironment() ||
366 (ToolChain.getTriple().getVendor() != llvm::Triple::MipsTechnologies);
368 ArgStringList CmdArgs;
370 // Silence warning for "clang -g foo.o -o foo"
371 Args.ClaimAllArgs(options::OPT_g_Group);
372 // and "clang -emit-llvm foo.o -o foo"
373 Args.ClaimAllArgs(options::OPT_emit_llvm);
374 // and for "clang -w foo.o -o foo". Other warning options are already
375 // handled somewhere else.
376 Args.ClaimAllArgs(options::OPT_w);
378 if (!D.SysRoot.empty())
379 CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot));
382 CmdArgs.push_back("-pie");
385 CmdArgs.push_back("-static");
386 CmdArgs.push_back("-pie");
387 CmdArgs.push_back("--no-dynamic-linker");
388 CmdArgs.push_back("-z");
389 CmdArgs.push_back("text");
392 if (ToolChain.isNoExecStackDefault()) {
393 CmdArgs.push_back("-z");
394 CmdArgs.push_back("noexecstack");
397 if (Args.hasArg(options::OPT_rdynamic))
398 CmdArgs.push_back("-export-dynamic");
400 if (Args.hasArg(options::OPT_s))
401 CmdArgs.push_back("-s");
403 if (Triple.isARM() || Triple.isThumb() || Triple.isAArch64()) {
404 bool IsBigEndian = isArmBigEndian(Triple, Args);
406 arm::appendBE8LinkFlag(Args, CmdArgs, Triple);
407 IsBigEndian = IsBigEndian || Arch == llvm::Triple::aarch64_be;
408 CmdArgs.push_back(IsBigEndian ? "-EB" : "-EL");
411 // Most Android ARM64 targets should enable the linker fix for erratum
412 // 843419. Only non-Cortex-A53 devices are allowed to skip this flag.
413 if (Arch == llvm::Triple::aarch64 && isAndroid) {
414 std::string CPU = getCPUName(Args, Triple);
415 if (CPU.empty() || CPU == "generic" || CPU == "cortex-a53")
416 CmdArgs.push_back("--fix-cortex-a53-843419");
419 // Android does not allow shared text relocations. Emit a warning if the
420 // user's code contains any.
422 CmdArgs.push_back("--warn-shared-textrel");
424 ToolChain.addExtraOpts(CmdArgs);
426 CmdArgs.push_back("--eh-frame-hdr");
428 if (const char *LDMOption = getLDMOption(ToolChain.getTriple(), Args)) {
429 CmdArgs.push_back("-m");
430 CmdArgs.push_back(LDMOption);
432 D.Diag(diag::err_target_unknown_triple) << Triple.str();
437 if (Arch == llvm::Triple::arm || Arch == llvm::Triple::armeb ||
438 Arch == llvm::Triple::thumb || Arch == llvm::Triple::thumbeb)
439 CmdArgs.push_back("-Bstatic");
441 CmdArgs.push_back("-static");
442 } else if (Args.hasArg(options::OPT_shared)) {
443 CmdArgs.push_back("-shared");
447 if (Args.hasArg(options::OPT_rdynamic))
448 CmdArgs.push_back("-export-dynamic");
450 if (!Args.hasArg(options::OPT_shared) && !IsStaticPIE) {
451 const std::string Loader =
452 D.DyldPrefix + ToolChain.getDynamicLinker(Args);
453 CmdArgs.push_back("-dynamic-linker");
454 CmdArgs.push_back(Args.MakeArgString(Loader));
458 CmdArgs.push_back("-o");
459 CmdArgs.push_back(Output.getFilename());
461 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
462 if (!isAndroid && !IsIAMCU) {
463 const char *crt1 = nullptr;
464 if (!Args.hasArg(options::OPT_shared)) {
465 if (Args.hasArg(options::OPT_pg))
469 else if (IsStaticPIE)
475 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crt1)));
477 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o")));
481 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt0.o")));
482 else if (HasCRTBeginEndFiles) {
484 if (ToolChain.GetRuntimeLibType(Args) == ToolChain::RLT_CompilerRT &&
486 std::string crtbegin = ToolChain.getCompilerRT(Args, "crtbegin",
487 ToolChain::FT_Object);
488 if (ToolChain.getVFS().exists(crtbegin))
492 const char *crtbegin;
494 crtbegin = isAndroid ? "crtbegin_static.o" : "crtbeginT.o";
495 else if (Args.hasArg(options::OPT_shared))
496 crtbegin = isAndroid ? "crtbegin_so.o" : "crtbeginS.o";
497 else if (IsPIE || IsStaticPIE)
498 crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbeginS.o";
500 crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbegin.o";
501 P = ToolChain.GetFilePath(crtbegin);
503 CmdArgs.push_back(Args.MakeArgString(P));
506 // Add crtfastmath.o if available and fast math is enabled.
507 ToolChain.AddFastMathRuntimeIfAvailable(Args, CmdArgs);
510 Args.AddAllArgs(CmdArgs, options::OPT_L);
511 Args.AddAllArgs(CmdArgs, options::OPT_u);
513 ToolChain.AddFilePathLibArgs(Args, CmdArgs);
515 if (D.isUsingLTO()) {
516 assert(!Inputs.empty() && "Must have at least one input.");
517 AddGoldPlugin(ToolChain, Args, CmdArgs, Output, Inputs[0],
518 D.getLTOMode() == LTOK_Thin);
521 if (Args.hasArg(options::OPT_Z_Xlinker__no_demangle))
522 CmdArgs.push_back("--no-demangle");
524 bool NeedsSanitizerDeps = addSanitizerRuntimes(ToolChain, Args, CmdArgs);
525 bool NeedsXRayDeps = addXRayRuntime(ToolChain, Args, CmdArgs);
526 AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA);
527 // The profile runtime also needs access to system libraries.
528 getToolChain().addProfileRTLibs(Args, CmdArgs);
531 !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
532 if (ToolChain.ShouldLinkCXXStdlib(Args)) {
533 bool OnlyLibstdcxxStatic = Args.hasArg(options::OPT_static_libstdcxx) &&
534 !Args.hasArg(options::OPT_static);
535 if (OnlyLibstdcxxStatic)
536 CmdArgs.push_back("-Bstatic");
537 ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs);
538 if (OnlyLibstdcxxStatic)
539 CmdArgs.push_back("-Bdynamic");
541 CmdArgs.push_back("-lm");
543 // Silence warnings when linking C code with a C++ '-stdlib' argument.
544 Args.ClaimAllArgs(options::OPT_stdlib_EQ);
546 if (!Args.hasArg(options::OPT_nostdlib)) {
547 if (!Args.hasArg(options::OPT_nodefaultlibs)) {
548 if (IsStatic || IsStaticPIE)
549 CmdArgs.push_back("--start-group");
551 if (NeedsSanitizerDeps)
552 linkSanitizerRuntimeDeps(ToolChain, CmdArgs);
555 linkXRayRuntimeDeps(ToolChain, CmdArgs);
557 bool WantPthread = Args.hasArg(options::OPT_pthread) ||
558 Args.hasArg(options::OPT_pthreads);
560 // Use the static OpenMP runtime with -static-openmp
561 bool StaticOpenMP = Args.hasArg(options::OPT_static_openmp) &&
562 !Args.hasArg(options::OPT_static);
564 // FIXME: Only pass GompNeedsRT = true for platforms with libgomp that
565 // require librt. Most modern Linux platforms do, but some may not.
566 if (addOpenMPRuntime(CmdArgs, ToolChain, Args, StaticOpenMP,
567 JA.isHostOffloading(Action::OFK_OpenMP),
568 /* GompNeedsRT= */ true))
569 // OpenMP runtimes implies pthreads when using the GNU toolchain.
570 // FIXME: Does this really make sense for all GNU toolchains?
573 AddRunTimeLibs(ToolChain, D, CmdArgs, Args);
575 if (WantPthread && !isAndroid)
576 CmdArgs.push_back("-lpthread");
578 if (Args.hasArg(options::OPT_fsplit_stack))
579 CmdArgs.push_back("--wrap=pthread_create");
581 if (!Args.hasArg(options::OPT_nolibc))
582 CmdArgs.push_back("-lc");
584 // Add IAMCU specific libs, if needed.
586 CmdArgs.push_back("-lgloss");
588 if (IsStatic || IsStaticPIE)
589 CmdArgs.push_back("--end-group");
591 AddRunTimeLibs(ToolChain, D, CmdArgs, Args);
593 // Add IAMCU specific libs (outside the group), if needed.
595 CmdArgs.push_back("--as-needed");
596 CmdArgs.push_back("-lsoftfp");
597 CmdArgs.push_back("--no-as-needed");
601 if (!Args.hasArg(options::OPT_nostartfiles) && !IsIAMCU) {
602 if (HasCRTBeginEndFiles) {
604 if (ToolChain.GetRuntimeLibType(Args) == ToolChain::RLT_CompilerRT &&
606 std::string crtend = ToolChain.getCompilerRT(Args, "crtend",
607 ToolChain::FT_Object);
608 if (ToolChain.getVFS().exists(crtend))
613 if (Args.hasArg(options::OPT_shared))
614 crtend = isAndroid ? "crtend_so.o" : "crtendS.o";
615 else if (IsPIE || IsStaticPIE)
616 crtend = isAndroid ? "crtend_android.o" : "crtendS.o";
618 crtend = isAndroid ? "crtend_android.o" : "crtend.o";
619 P = ToolChain.GetFilePath(crtend);
621 CmdArgs.push_back(Args.MakeArgString(P));
624 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o")));
628 // Add HIP offloading linker script args if required.
629 AddHIPLinkerScript(getToolChain(), C, Output, Inputs, Args, CmdArgs, JA,
632 const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath());
633 C.addCommand(std::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
636 void tools::gnutools::Assembler::ConstructJob(Compilation &C,
638 const InputInfo &Output,
639 const InputInfoList &Inputs,
641 const char *LinkingOutput) const {
642 const auto &D = getToolChain().getDriver();
644 claimNoWarnArgs(Args);
646 ArgStringList CmdArgs;
648 llvm::Reloc::Model RelocationModel;
651 std::tie(RelocationModel, PICLevel, IsPIE) =
652 ParsePICArgs(getToolChain(), Args);
654 if (const Arg *A = Args.getLastArg(options::OPT_gz, options::OPT_gz_EQ)) {
655 if (A->getOption().getID() == options::OPT_gz) {
656 CmdArgs.push_back("--compress-debug-sections");
658 StringRef Value = A->getValue();
659 if (Value == "none" || Value == "zlib" || Value == "zlib-gnu") {
661 Args.MakeArgString("--compress-debug-sections=" + Twine(Value)));
663 D.Diag(diag::err_drv_unsupported_option_argument)
664 << A->getOption().getName() << Value;
669 if (getToolChain().isNoExecStackDefault()) {
670 CmdArgs.push_back("--noexecstack");
673 switch (getToolChain().getArch()) {
676 // Add --32/--64 to make sure we get the format we want.
677 // This is incomplete
678 case llvm::Triple::x86:
679 CmdArgs.push_back("--32");
681 case llvm::Triple::x86_64:
682 if (getToolChain().getTriple().getEnvironment() == llvm::Triple::GNUX32)
683 CmdArgs.push_back("--x32");
685 CmdArgs.push_back("--64");
687 case llvm::Triple::ppc: {
688 CmdArgs.push_back("-a32");
689 CmdArgs.push_back("-mppc");
691 ppc::getPPCAsmModeForCPU(getCPUName(Args, getToolChain().getTriple())));
694 case llvm::Triple::ppc64: {
695 CmdArgs.push_back("-a64");
696 CmdArgs.push_back("-mppc64");
698 ppc::getPPCAsmModeForCPU(getCPUName(Args, getToolChain().getTriple())));
701 case llvm::Triple::ppc64le: {
702 CmdArgs.push_back("-a64");
703 CmdArgs.push_back("-mppc64");
704 CmdArgs.push_back("-mlittle-endian");
706 ppc::getPPCAsmModeForCPU(getCPUName(Args, getToolChain().getTriple())));
709 case llvm::Triple::riscv32:
710 case llvm::Triple::riscv64: {
711 StringRef ABIName = riscv::getRISCVABI(Args, getToolChain().getTriple());
712 CmdArgs.push_back("-mabi");
713 CmdArgs.push_back(ABIName.data());
714 StringRef MArchName = riscv::getRISCVArch(Args, getToolChain().getTriple());
715 CmdArgs.push_back("-march");
716 CmdArgs.push_back(MArchName.data());
719 case llvm::Triple::sparc:
720 case llvm::Triple::sparcel: {
721 CmdArgs.push_back("-32");
722 std::string CPU = getCPUName(Args, getToolChain().getTriple());
724 sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple()));
725 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
728 case llvm::Triple::sparcv9: {
729 CmdArgs.push_back("-64");
730 std::string CPU = getCPUName(Args, getToolChain().getTriple());
732 sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple()));
733 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
736 case llvm::Triple::arm:
737 case llvm::Triple::armeb:
738 case llvm::Triple::thumb:
739 case llvm::Triple::thumbeb: {
740 const llvm::Triple &Triple2 = getToolChain().getTriple();
741 CmdArgs.push_back(isArmBigEndian(Triple2, Args) ? "-EB" : "-EL");
742 switch (Triple2.getSubArch()) {
743 case llvm::Triple::ARMSubArch_v7:
744 CmdArgs.push_back("-mfpu=neon");
746 case llvm::Triple::ARMSubArch_v8:
747 CmdArgs.push_back("-mfpu=crypto-neon-fp-armv8");
753 switch (arm::getARMFloatABI(getToolChain(), Args)) {
754 case arm::FloatABI::Invalid: llvm_unreachable("must have an ABI!");
755 case arm::FloatABI::Soft:
756 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=soft"));
758 case arm::FloatABI::SoftFP:
759 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=softfp"));
761 case arm::FloatABI::Hard:
762 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=hard"));
766 Args.AddLastArg(CmdArgs, options::OPT_march_EQ);
767 normalizeCPUNamesForAssembler(Args, CmdArgs);
769 Args.AddLastArg(CmdArgs, options::OPT_mfpu_EQ);
772 case llvm::Triple::aarch64:
773 case llvm::Triple::aarch64_be: {
775 getToolChain().getArch() == llvm::Triple::aarch64_be ? "-EB" : "-EL");
776 Args.AddLastArg(CmdArgs, options::OPT_march_EQ);
777 normalizeCPUNamesForAssembler(Args, CmdArgs);
781 case llvm::Triple::mips:
782 case llvm::Triple::mipsel:
783 case llvm::Triple::mips64:
784 case llvm::Triple::mips64el: {
787 mips::getMipsCPUAndABI(Args, getToolChain().getTriple(), CPUName, ABIName);
788 ABIName = mips::getGnuCompatibleMipsABIName(ABIName);
790 CmdArgs.push_back("-march");
791 CmdArgs.push_back(CPUName.data());
793 CmdArgs.push_back("-mabi");
794 CmdArgs.push_back(ABIName.data());
796 // -mno-shared should be emitted unless -fpic, -fpie, -fPIC, -fPIE,
797 // or -mshared (not implemented) is in effect.
798 if (RelocationModel == llvm::Reloc::Static)
799 CmdArgs.push_back("-mno-shared");
801 // LLVM doesn't support -mplt yet and acts as if it is always given.
802 // However, -mplt has no effect with the N64 ABI.
803 if (ABIName != "64" && !Args.hasArg(options::OPT_mno_abicalls))
804 CmdArgs.push_back("-call_nonpic");
806 if (getToolChain().getTriple().isLittleEndian())
807 CmdArgs.push_back("-EL");
809 CmdArgs.push_back("-EB");
811 if (Arg *A = Args.getLastArg(options::OPT_mnan_EQ)) {
812 if (StringRef(A->getValue()) == "2008")
813 CmdArgs.push_back(Args.MakeArgString("-mnan=2008"));
816 // Add the last -mfp32/-mfpxx/-mfp64 or -mfpxx if it is enabled by default.
817 if (Arg *A = Args.getLastArg(options::OPT_mfp32, options::OPT_mfpxx,
818 options::OPT_mfp64)) {
820 A->render(Args, CmdArgs);
821 } else if (mips::shouldUseFPXX(
822 Args, getToolChain().getTriple(), CPUName, ABIName,
823 mips::getMipsFloatABI(getToolChain().getDriver(), Args,
824 getToolChain().getTriple())))
825 CmdArgs.push_back("-mfpxx");
827 // Pass on -mmips16 or -mno-mips16. However, the assembler equivalent of
828 // -mno-mips16 is actually -no-mips16.
830 Args.getLastArg(options::OPT_mips16, options::OPT_mno_mips16)) {
831 if (A->getOption().matches(options::OPT_mips16)) {
833 A->render(Args, CmdArgs);
836 CmdArgs.push_back("-no-mips16");
840 Args.AddLastArg(CmdArgs, options::OPT_mmicromips,
841 options::OPT_mno_micromips);
842 Args.AddLastArg(CmdArgs, options::OPT_mdsp, options::OPT_mno_dsp);
843 Args.AddLastArg(CmdArgs, options::OPT_mdspr2, options::OPT_mno_dspr2);
845 if (Arg *A = Args.getLastArg(options::OPT_mmsa, options::OPT_mno_msa)) {
846 // Do not use AddLastArg because not all versions of MIPS assembler
847 // support -mmsa / -mno-msa options.
848 if (A->getOption().matches(options::OPT_mmsa))
849 CmdArgs.push_back(Args.MakeArgString("-mmsa"));
852 Args.AddLastArg(CmdArgs, options::OPT_mhard_float,
853 options::OPT_msoft_float);
855 Args.AddLastArg(CmdArgs, options::OPT_mdouble_float,
856 options::OPT_msingle_float);
858 Args.AddLastArg(CmdArgs, options::OPT_modd_spreg,
859 options::OPT_mno_odd_spreg);
861 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
864 case llvm::Triple::systemz: {
865 // Always pass an -march option, since our default of z10 is later
866 // than the GNU assembler's default.
867 std::string CPUName = systemz::getSystemZTargetCPU(Args);
868 CmdArgs.push_back(Args.MakeArgString("-march=" + CPUName));
873 for (const Arg *A : Args.filtered(options::OPT_ffile_prefix_map_EQ,
874 options::OPT_fdebug_prefix_map_EQ)) {
875 StringRef Map = A->getValue();
876 if (Map.find('=') == StringRef::npos)
877 D.Diag(diag::err_drv_invalid_argument_to_option)
878 << Map << A->getOption().getName();
880 CmdArgs.push_back(Args.MakeArgString("--debug-prefix-map"));
881 CmdArgs.push_back(Args.MakeArgString(Map));
886 Args.AddAllArgs(CmdArgs, options::OPT_I);
887 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
889 CmdArgs.push_back("-o");
890 CmdArgs.push_back(Output.getFilename());
892 for (const auto &II : Inputs)
893 CmdArgs.push_back(II.getFilename());
895 const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as"));
896 C.addCommand(std::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
898 // Handle the debug info splitting at object creation time if we're
899 // creating an object.
900 // TODO: Currently only works on linux with newer objcopy.
901 if (Args.hasArg(options::OPT_gsplit_dwarf) &&
902 getToolChain().getTriple().isOSLinux())
903 SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output,
904 SplitDebugName(Args, Inputs[0], Output));
908 // Filter to remove Multilibs that don't exist as a suffix to Path
909 class FilterNonExistent {
910 StringRef Base, File;
911 llvm::vfs::FileSystem &VFS;
914 FilterNonExistent(StringRef Base, StringRef File, llvm::vfs::FileSystem &VFS)
915 : Base(Base), File(File), VFS(VFS) {}
916 bool operator()(const Multilib &M) {
917 return !VFS.exists(Base + M.gccSuffix() + File);
920 } // end anonymous namespace
922 static bool isSoftFloatABI(const ArgList &Args) {
923 Arg *A = Args.getLastArg(options::OPT_msoft_float, options::OPT_mhard_float,
924 options::OPT_mfloat_abi_EQ);
928 return A->getOption().matches(options::OPT_msoft_float) ||
929 (A->getOption().matches(options::OPT_mfloat_abi_EQ) &&
930 A->getValue() == StringRef("soft"));
933 static bool isArmOrThumbArch(llvm::Triple::ArchType Arch) {
934 return Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb;
937 static bool isMipsEL(llvm::Triple::ArchType Arch) {
938 return Arch == llvm::Triple::mipsel || Arch == llvm::Triple::mips64el;
941 static bool isMips16(const ArgList &Args) {
942 Arg *A = Args.getLastArg(options::OPT_mips16, options::OPT_mno_mips16);
943 return A && A->getOption().matches(options::OPT_mips16);
946 static bool isMicroMips(const ArgList &Args) {
947 Arg *A = Args.getLastArg(options::OPT_mmicromips, options::OPT_mno_micromips);
948 return A && A->getOption().matches(options::OPT_mmicromips);
951 static bool isMSP430(llvm::Triple::ArchType Arch) {
952 return Arch == llvm::Triple::msp430;
955 static Multilib makeMultilib(StringRef commonSuffix) {
956 return Multilib(commonSuffix, commonSuffix, commonSuffix);
959 static bool findMipsCsMultilibs(const Multilib::flags_list &Flags,
960 FilterNonExistent &NonExistent,
961 DetectedMultilibs &Result) {
962 // Check for Code Sourcery toolchain multilibs
963 MultilibSet CSMipsMultilibs;
965 auto MArchMips16 = makeMultilib("/mips16").flag("+m32").flag("+mips16");
967 auto MArchMicroMips =
968 makeMultilib("/micromips").flag("+m32").flag("+mmicromips");
970 auto MArchDefault = makeMultilib("").flag("-mips16").flag("-mmicromips");
972 auto UCLibc = makeMultilib("/uclibc").flag("+muclibc");
974 auto SoftFloat = makeMultilib("/soft-float").flag("+msoft-float");
976 auto Nan2008 = makeMultilib("/nan2008").flag("+mnan=2008");
979 makeMultilib("").flag("-msoft-float").flag("-mnan=2008");
981 auto BigEndian = makeMultilib("").flag("+EB").flag("-EL");
983 auto LittleEndian = makeMultilib("/el").flag("+EL").flag("-EB");
985 // Note that this one's osSuffix is ""
986 auto MAbi64 = makeMultilib("")
988 .includeSuffix("/64")
995 .Either(MArchMips16, MArchMicroMips, MArchDefault)
997 .Either(SoftFloat, Nan2008, DefaultFloat)
998 .FilterOut("/micromips/nan2008")
999 .FilterOut("/mips16/nan2008")
1000 .Either(BigEndian, LittleEndian)
1002 .FilterOut("/mips16.*/64")
1003 .FilterOut("/micromips.*/64")
1004 .FilterOut(NonExistent)
1005 .setIncludeDirsCallback([](const Multilib &M) {
1006 std::vector<std::string> Dirs({"/include"});
1007 if (StringRef(M.includeSuffix()).startswith("/uclibc"))
1009 "/../../../../mips-linux-gnu/libc/uclibc/usr/include");
1011 Dirs.push_back("/../../../../mips-linux-gnu/libc/usr/include");
1016 MultilibSet DebianMipsMultilibs;
1019 Multilib().gccSuffix("/n32").includeSuffix("/n32").flag("+mabi=n32");
1021 Multilib M64 = Multilib()
1023 .includeSuffix("/64")
1028 Multilib M32 = Multilib().flag("-m64").flag("+m32").flag("-mabi=n32");
1030 DebianMipsMultilibs =
1031 MultilibSet().Either(M32, M64, MAbiN32).FilterOut(NonExistent);
1034 // Sort candidates. Toolchain that best meets the directories tree goes first.
1035 // Then select the first toolchains matches command line flags.
1036 MultilibSet *Candidates[] = {&CSMipsMultilibs, &DebianMipsMultilibs};
1037 if (CSMipsMultilibs.size() < DebianMipsMultilibs.size())
1038 std::iter_swap(Candidates, Candidates + 1);
1039 for (const MultilibSet *Candidate : Candidates) {
1040 if (Candidate->select(Flags, Result.SelectedMultilib)) {
1041 if (Candidate == &DebianMipsMultilibs)
1042 Result.BiarchSibling = Multilib();
1043 Result.Multilibs = *Candidate;
1050 static bool findMipsAndroidMultilibs(llvm::vfs::FileSystem &VFS, StringRef Path,
1051 const Multilib::flags_list &Flags,
1052 FilterNonExistent &NonExistent,
1053 DetectedMultilibs &Result) {
1055 MultilibSet AndroidMipsMultilibs =
1057 .Maybe(Multilib("/mips-r2").flag("+march=mips32r2"))
1058 .Maybe(Multilib("/mips-r6").flag("+march=mips32r6"))
1059 .FilterOut(NonExistent);
1061 MultilibSet AndroidMipselMultilibs =
1063 .Either(Multilib().flag("+march=mips32"),
1064 Multilib("/mips-r2", "", "/mips-r2").flag("+march=mips32r2"),
1065 Multilib("/mips-r6", "", "/mips-r6").flag("+march=mips32r6"))
1066 .FilterOut(NonExistent);
1068 MultilibSet AndroidMips64elMultilibs =
1071 Multilib().flag("+march=mips64r6"),
1072 Multilib("/32/mips-r1", "", "/mips-r1").flag("+march=mips32"),
1073 Multilib("/32/mips-r2", "", "/mips-r2").flag("+march=mips32r2"),
1074 Multilib("/32/mips-r6", "", "/mips-r6").flag("+march=mips32r6"))
1075 .FilterOut(NonExistent);
1077 MultilibSet *MS = &AndroidMipsMultilibs;
1078 if (VFS.exists(Path + "/mips-r6"))
1079 MS = &AndroidMipselMultilibs;
1080 else if (VFS.exists(Path + "/32"))
1081 MS = &AndroidMips64elMultilibs;
1082 if (MS->select(Flags, Result.SelectedMultilib)) {
1083 Result.Multilibs = *MS;
1089 static bool findMipsMuslMultilibs(const Multilib::flags_list &Flags,
1090 FilterNonExistent &NonExistent,
1091 DetectedMultilibs &Result) {
1092 // Musl toolchain multilibs
1093 MultilibSet MuslMipsMultilibs;
1095 auto MArchMipsR2 = makeMultilib("")
1096 .osSuffix("/mips-r2-hard-musl")
1099 .flag("+march=mips32r2");
1101 auto MArchMipselR2 = makeMultilib("/mipsel-r2-hard-musl")
1104 .flag("+march=mips32r2");
1106 MuslMipsMultilibs = MultilibSet().Either(MArchMipsR2, MArchMipselR2);
1108 // Specify the callback that computes the include directories.
1109 MuslMipsMultilibs.setIncludeDirsCallback([](const Multilib &M) {
1110 return std::vector<std::string>(
1111 {"/../sysroot" + M.osSuffix() + "/usr/include"});
1114 if (MuslMipsMultilibs.select(Flags, Result.SelectedMultilib)) {
1115 Result.Multilibs = MuslMipsMultilibs;
1121 static bool findMipsMtiMultilibs(const Multilib::flags_list &Flags,
1122 FilterNonExistent &NonExistent,
1123 DetectedMultilibs &Result) {
1124 // CodeScape MTI toolchain v1.2 and early.
1125 MultilibSet MtiMipsMultilibsV1;
1127 auto MArchMips32 = makeMultilib("/mips32")
1130 .flag("-mmicromips")
1131 .flag("+march=mips32");
1133 auto MArchMicroMips = makeMultilib("/micromips")
1136 .flag("+mmicromips");
1138 auto MArchMips64r2 = makeMultilib("/mips64r2")
1141 .flag("+march=mips64r2");
1143 auto MArchMips64 = makeMultilib("/mips64").flag("-m32").flag("+m64").flag(
1146 auto MArchDefault = makeMultilib("")
1149 .flag("-mmicromips")
1150 .flag("+march=mips32r2");
1152 auto Mips16 = makeMultilib("/mips16").flag("+mips16");
1154 auto UCLibc = makeMultilib("/uclibc").flag("+muclibc");
1157 makeMultilib("/64").flag("+mabi=n64").flag("-mabi=n32").flag("-m32");
1159 auto BigEndian = makeMultilib("").flag("+EB").flag("-EL");
1161 auto LittleEndian = makeMultilib("/el").flag("+EL").flag("-EB");
1163 auto SoftFloat = makeMultilib("/sof").flag("+msoft-float");
1165 auto Nan2008 = makeMultilib("/nan2008").flag("+mnan=2008");
1167 MtiMipsMultilibsV1 =
1169 .Either(MArchMips32, MArchMicroMips, MArchMips64r2, MArchMips64,
1173 .FilterOut("/mips64/mips16")
1174 .FilterOut("/mips64r2/mips16")
1175 .FilterOut("/micromips/mips16")
1177 .FilterOut("/micromips/64")
1178 .FilterOut("/mips32/64")
1180 .FilterOut("/mips16/64")
1181 .Either(BigEndian, LittleEndian)
1184 .FilterOut(".*sof/nan2008")
1185 .FilterOut(NonExistent)
1186 .setIncludeDirsCallback([](const Multilib &M) {
1187 std::vector<std::string> Dirs({"/include"});
1188 if (StringRef(M.includeSuffix()).startswith("/uclibc"))
1189 Dirs.push_back("/../../../../sysroot/uclibc/usr/include");
1191 Dirs.push_back("/../../../../sysroot/usr/include");
1196 // CodeScape IMG toolchain starting from v1.3.
1197 MultilibSet MtiMipsMultilibsV2;
1199 auto BeHard = makeMultilib("/mips-r2-hard")
1201 .flag("-msoft-float")
1204 auto BeSoft = makeMultilib("/mips-r2-soft")
1206 .flag("+msoft-float")
1207 .flag("-mnan=2008");
1208 auto ElHard = makeMultilib("/mipsel-r2-hard")
1210 .flag("-msoft-float")
1213 auto ElSoft = makeMultilib("/mipsel-r2-soft")
1215 .flag("+msoft-float")
1217 .flag("-mmicromips");
1218 auto BeHardNan = makeMultilib("/mips-r2-hard-nan2008")
1220 .flag("-msoft-float")
1223 auto ElHardNan = makeMultilib("/mipsel-r2-hard-nan2008")
1225 .flag("-msoft-float")
1228 .flag("-mmicromips");
1229 auto BeHardNanUclibc = makeMultilib("/mips-r2-hard-nan2008-uclibc")
1231 .flag("-msoft-float")
1234 auto ElHardNanUclibc = makeMultilib("/mipsel-r2-hard-nan2008-uclibc")
1236 .flag("-msoft-float")
1239 auto BeHardUclibc = makeMultilib("/mips-r2-hard-uclibc")
1241 .flag("-msoft-float")
1244 auto ElHardUclibc = makeMultilib("/mipsel-r2-hard-uclibc")
1246 .flag("-msoft-float")
1249 auto ElMicroHardNan = makeMultilib("/micromipsel-r2-hard-nan2008")
1251 .flag("-msoft-float")
1253 .flag("+mmicromips");
1254 auto ElMicroSoft = makeMultilib("/micromipsel-r2-soft")
1256 .flag("+msoft-float")
1258 .flag("+mmicromips");
1261 makeMultilib("/lib").osSuffix("").flag("-mabi=n32").flag("-mabi=n64");
1263 makeMultilib("/lib32").osSuffix("").flag("+mabi=n32").flag("-mabi=n64");
1265 makeMultilib("/lib64").osSuffix("").flag("-mabi=n32").flag("+mabi=n64");
1267 MtiMipsMultilibsV2 =
1269 .Either({BeHard, BeSoft, ElHard, ElSoft, BeHardNan, ElHardNan,
1270 BeHardNanUclibc, ElHardNanUclibc, BeHardUclibc,
1271 ElHardUclibc, ElMicroHardNan, ElMicroSoft})
1272 .Either(O32, N32, N64)
1273 .FilterOut(NonExistent)
1274 .setIncludeDirsCallback([](const Multilib &M) {
1275 return std::vector<std::string>({"/../../../../sysroot" +
1277 "/../usr/include"});
1279 .setFilePathsCallback([](const Multilib &M) {
1280 return std::vector<std::string>(
1281 {"/../../../../mips-mti-linux-gnu/lib" + M.gccSuffix()});
1284 for (auto Candidate : {&MtiMipsMultilibsV1, &MtiMipsMultilibsV2}) {
1285 if (Candidate->select(Flags, Result.SelectedMultilib)) {
1286 Result.Multilibs = *Candidate;
1293 static bool findMipsImgMultilibs(const Multilib::flags_list &Flags,
1294 FilterNonExistent &NonExistent,
1295 DetectedMultilibs &Result) {
1296 // CodeScape IMG toolchain v1.2 and early.
1297 MultilibSet ImgMultilibsV1;
1299 auto Mips64r6 = makeMultilib("/mips64r6").flag("+m64").flag("-m32");
1301 auto LittleEndian = makeMultilib("/el").flag("+EL").flag("-EB");
1304 makeMultilib("/64").flag("+mabi=n64").flag("-mabi=n32").flag("-m32");
1310 .Maybe(LittleEndian)
1311 .FilterOut(NonExistent)
1312 .setIncludeDirsCallback([](const Multilib &M) {
1313 return std::vector<std::string>(
1314 {"/include", "/../../../../sysroot/usr/include"});
1318 // CodeScape IMG toolchain starting from v1.3.
1319 MultilibSet ImgMultilibsV2;
1321 auto BeHard = makeMultilib("/mips-r6-hard")
1323 .flag("-msoft-float")
1324 .flag("-mmicromips");
1325 auto BeSoft = makeMultilib("/mips-r6-soft")
1327 .flag("+msoft-float")
1328 .flag("-mmicromips");
1329 auto ElHard = makeMultilib("/mipsel-r6-hard")
1331 .flag("-msoft-float")
1332 .flag("-mmicromips");
1333 auto ElSoft = makeMultilib("/mipsel-r6-soft")
1335 .flag("+msoft-float")
1336 .flag("-mmicromips");
1337 auto BeMicroHard = makeMultilib("/micromips-r6-hard")
1339 .flag("-msoft-float")
1340 .flag("+mmicromips");
1341 auto BeMicroSoft = makeMultilib("/micromips-r6-soft")
1343 .flag("+msoft-float")
1344 .flag("+mmicromips");
1345 auto ElMicroHard = makeMultilib("/micromipsel-r6-hard")
1347 .flag("-msoft-float")
1348 .flag("+mmicromips");
1349 auto ElMicroSoft = makeMultilib("/micromipsel-r6-soft")
1351 .flag("+msoft-float")
1352 .flag("+mmicromips");
1355 makeMultilib("/lib").osSuffix("").flag("-mabi=n32").flag("-mabi=n64");
1357 makeMultilib("/lib32").osSuffix("").flag("+mabi=n32").flag("-mabi=n64");
1359 makeMultilib("/lib64").osSuffix("").flag("-mabi=n32").flag("+mabi=n64");
1363 .Either({BeHard, BeSoft, ElHard, ElSoft, BeMicroHard, BeMicroSoft,
1364 ElMicroHard, ElMicroSoft})
1365 .Either(O32, N32, N64)
1366 .FilterOut(NonExistent)
1367 .setIncludeDirsCallback([](const Multilib &M) {
1368 return std::vector<std::string>({"/../../../../sysroot" +
1370 "/../usr/include"});
1372 .setFilePathsCallback([](const Multilib &M) {
1373 return std::vector<std::string>(
1374 {"/../../../../mips-img-linux-gnu/lib" + M.gccSuffix()});
1377 for (auto Candidate : {&ImgMultilibsV1, &ImgMultilibsV2}) {
1378 if (Candidate->select(Flags, Result.SelectedMultilib)) {
1379 Result.Multilibs = *Candidate;
1386 bool clang::driver::findMIPSMultilibs(const Driver &D,
1387 const llvm::Triple &TargetTriple,
1388 StringRef Path, const ArgList &Args,
1389 DetectedMultilibs &Result) {
1390 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1394 tools::mips::getMipsCPUAndABI(Args, TargetTriple, CPUName, ABIName);
1396 llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
1398 Multilib::flags_list Flags;
1399 addMultilibFlag(TargetTriple.isMIPS32(), "m32", Flags);
1400 addMultilibFlag(TargetTriple.isMIPS64(), "m64", Flags);
1401 addMultilibFlag(isMips16(Args), "mips16", Flags);
1402 addMultilibFlag(CPUName == "mips32", "march=mips32", Flags);
1403 addMultilibFlag(CPUName == "mips32r2" || CPUName == "mips32r3" ||
1404 CPUName == "mips32r5" || CPUName == "p5600",
1405 "march=mips32r2", Flags);
1406 addMultilibFlag(CPUName == "mips32r6", "march=mips32r6", Flags);
1407 addMultilibFlag(CPUName == "mips64", "march=mips64", Flags);
1408 addMultilibFlag(CPUName == "mips64r2" || CPUName == "mips64r3" ||
1409 CPUName == "mips64r5" || CPUName == "octeon" ||
1410 CPUName == "octeon+",
1411 "march=mips64r2", Flags);
1412 addMultilibFlag(CPUName == "mips64r6", "march=mips64r6", Flags);
1413 addMultilibFlag(isMicroMips(Args), "mmicromips", Flags);
1414 addMultilibFlag(tools::mips::isUCLibc(Args), "muclibc", Flags);
1415 addMultilibFlag(tools::mips::isNaN2008(Args, TargetTriple), "mnan=2008",
1417 addMultilibFlag(ABIName == "n32", "mabi=n32", Flags);
1418 addMultilibFlag(ABIName == "n64", "mabi=n64", Flags);
1419 addMultilibFlag(isSoftFloatABI(Args), "msoft-float", Flags);
1420 addMultilibFlag(!isSoftFloatABI(Args), "mhard-float", Flags);
1421 addMultilibFlag(isMipsEL(TargetArch), "EL", Flags);
1422 addMultilibFlag(!isMipsEL(TargetArch), "EB", Flags);
1424 if (TargetTriple.isAndroid())
1425 return findMipsAndroidMultilibs(D.getVFS(), Path, Flags, NonExistent,
1428 if (TargetTriple.getVendor() == llvm::Triple::MipsTechnologies &&
1429 TargetTriple.getOS() == llvm::Triple::Linux &&
1430 TargetTriple.getEnvironment() == llvm::Triple::UnknownEnvironment)
1431 return findMipsMuslMultilibs(Flags, NonExistent, Result);
1433 if (TargetTriple.getVendor() == llvm::Triple::MipsTechnologies &&
1434 TargetTriple.getOS() == llvm::Triple::Linux &&
1435 TargetTriple.isGNUEnvironment())
1436 return findMipsMtiMultilibs(Flags, NonExistent, Result);
1438 if (TargetTriple.getVendor() == llvm::Triple::ImaginationTechnologies &&
1439 TargetTriple.getOS() == llvm::Triple::Linux &&
1440 TargetTriple.isGNUEnvironment())
1441 return findMipsImgMultilibs(Flags, NonExistent, Result);
1443 if (findMipsCsMultilibs(Flags, NonExistent, Result))
1446 // Fallback to the regular toolchain-tree structure.
1448 Result.Multilibs.push_back(Default);
1449 Result.Multilibs.FilterOut(NonExistent);
1451 if (Result.Multilibs.select(Flags, Result.SelectedMultilib)) {
1452 Result.BiarchSibling = Multilib();
1459 static void findAndroidArmMultilibs(const Driver &D,
1460 const llvm::Triple &TargetTriple,
1461 StringRef Path, const ArgList &Args,
1462 DetectedMultilibs &Result) {
1463 // Find multilibs with subdirectories like armv7-a, thumb, armv7-a/thumb.
1464 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1465 Multilib ArmV7Multilib = makeMultilib("/armv7-a")
1466 .flag("+march=armv7-a")
1468 Multilib ThumbMultilib = makeMultilib("/thumb")
1469 .flag("-march=armv7-a")
1471 Multilib ArmV7ThumbMultilib = makeMultilib("/armv7-a/thumb")
1472 .flag("+march=armv7-a")
1474 Multilib DefaultMultilib = makeMultilib("")
1475 .flag("-march=armv7-a")
1477 MultilibSet AndroidArmMultilibs =
1479 .Either(ThumbMultilib, ArmV7Multilib,
1480 ArmV7ThumbMultilib, DefaultMultilib)
1481 .FilterOut(NonExistent);
1483 Multilib::flags_list Flags;
1484 llvm::StringRef Arch = Args.getLastArgValue(options::OPT_march_EQ);
1485 bool IsArmArch = TargetTriple.getArch() == llvm::Triple::arm;
1486 bool IsThumbArch = TargetTriple.getArch() == llvm::Triple::thumb;
1487 bool IsV7SubArch = TargetTriple.getSubArch() == llvm::Triple::ARMSubArch_v7;
1488 bool IsThumbMode = IsThumbArch ||
1489 Args.hasFlag(options::OPT_mthumb, options::OPT_mno_thumb, false) ||
1490 (IsArmArch && llvm::ARM::parseArchISA(Arch) == llvm::ARM::ISAKind::THUMB);
1491 bool IsArmV7Mode = (IsArmArch || IsThumbArch) &&
1492 (llvm::ARM::parseArchVersion(Arch) == 7 ||
1493 (IsArmArch && Arch == "" && IsV7SubArch));
1494 addMultilibFlag(IsArmV7Mode, "march=armv7-a", Flags);
1495 addMultilibFlag(IsThumbMode, "mthumb", Flags);
1497 if (AndroidArmMultilibs.select(Flags, Result.SelectedMultilib))
1498 Result.Multilibs = AndroidArmMultilibs;
1501 static bool findMSP430Multilibs(const Driver &D,
1502 const llvm::Triple &TargetTriple,
1503 StringRef Path, const ArgList &Args,
1504 DetectedMultilibs &Result) {
1505 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1506 Multilib MSP430Multilib = makeMultilib("/430");
1507 // FIXME: when clang starts to support msp430x ISA additional logic
1508 // to select between multilib must be implemented
1509 // Multilib MSP430xMultilib = makeMultilib("/large");
1511 Result.Multilibs.push_back(MSP430Multilib);
1512 Result.Multilibs.FilterOut(NonExistent);
1514 Multilib::flags_list Flags;
1515 if (Result.Multilibs.select(Flags, Result.SelectedMultilib))
1521 static void findRISCVBareMetalMultilibs(const Driver &D,
1522 const llvm::Triple &TargetTriple,
1523 StringRef Path, const ArgList &Args,
1524 DetectedMultilibs &Result) {
1525 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1526 struct RiscvMultilib {
1530 // currently only support the set of multilibs like riscv-gnu-toolchain does.
1531 // TODO: support MULTILIB_REUSE
1532 SmallVector<RiscvMultilib, 8> RISCVMultilibSet = {
1533 {"rv32i", "ilp32"}, {"rv32im", "ilp32"}, {"rv32iac", "ilp32"},
1534 {"rv32imac", "ilp32"}, {"rv32imafc", "ilp32f"}, {"rv64imac", "lp64"},
1535 {"rv64imafdc", "lp64d"}};
1537 std::vector<Multilib> Ms;
1538 for (auto Element : RISCVMultilibSet) {
1539 // multilib path rule is ${march}/${mabi}
1541 makeMultilib((Twine(Element.march) + "/" + Twine(Element.mabi)).str())
1542 .flag(Twine("+march=", Element.march).str())
1543 .flag(Twine("+mabi=", Element.mabi).str()));
1545 MultilibSet RISCVMultilibs =
1547 .Either(ArrayRef<Multilib>(Ms))
1548 .FilterOut(NonExistent)
1549 .setFilePathsCallback([](const Multilib &M) {
1550 return std::vector<std::string>(
1552 "/../../../../riscv64-unknown-elf/lib" + M.gccSuffix(),
1553 "/../../../../riscv32-unknown-elf/lib" + M.gccSuffix()});
1557 Multilib::flags_list Flags;
1558 llvm::StringSet<> Added_ABIs;
1559 StringRef ABIName = tools::riscv::getRISCVABI(Args, TargetTriple);
1560 StringRef MArch = tools::riscv::getRISCVArch(Args, TargetTriple);
1561 for (auto Element : RISCVMultilibSet) {
1562 addMultilibFlag(MArch == Element.march,
1563 Twine("march=", Element.march).str().c_str(), Flags);
1564 if (!Added_ABIs.count(Element.mabi)) {
1565 Added_ABIs.insert(Element.mabi);
1566 addMultilibFlag(ABIName == Element.mabi,
1567 Twine("mabi=", Element.mabi).str().c_str(), Flags);
1571 if (RISCVMultilibs.select(Flags, Result.SelectedMultilib))
1572 Result.Multilibs = RISCVMultilibs;
1575 static void findRISCVMultilibs(const Driver &D,
1576 const llvm::Triple &TargetTriple, StringRef Path,
1577 const ArgList &Args, DetectedMultilibs &Result) {
1578 if (TargetTriple.getOS() == llvm::Triple::UnknownOS)
1579 return findRISCVBareMetalMultilibs(D, TargetTriple, Path, Args, Result);
1581 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1582 Multilib Ilp32 = makeMultilib("lib32/ilp32").flag("+m32").flag("+mabi=ilp32");
1584 makeMultilib("lib32/ilp32f").flag("+m32").flag("+mabi=ilp32f");
1586 makeMultilib("lib32/ilp32d").flag("+m32").flag("+mabi=ilp32d");
1587 Multilib Lp64 = makeMultilib("lib64/lp64").flag("+m64").flag("+mabi=lp64");
1588 Multilib Lp64f = makeMultilib("lib64/lp64f").flag("+m64").flag("+mabi=lp64f");
1589 Multilib Lp64d = makeMultilib("lib64/lp64d").flag("+m64").flag("+mabi=lp64d");
1590 MultilibSet RISCVMultilibs =
1592 .Either({Ilp32, Ilp32f, Ilp32d, Lp64, Lp64f, Lp64d})
1593 .FilterOut(NonExistent);
1595 Multilib::flags_list Flags;
1596 bool IsRV64 = TargetTriple.getArch() == llvm::Triple::riscv64;
1597 StringRef ABIName = tools::riscv::getRISCVABI(Args, TargetTriple);
1599 addMultilibFlag(!IsRV64, "m32", Flags);
1600 addMultilibFlag(IsRV64, "m64", Flags);
1601 addMultilibFlag(ABIName == "ilp32", "mabi=ilp32", Flags);
1602 addMultilibFlag(ABIName == "ilp32f", "mabi=ilp32f", Flags);
1603 addMultilibFlag(ABIName == "ilp32d", "mabi=ilp32d", Flags);
1604 addMultilibFlag(ABIName == "lp64", "mabi=lp64", Flags);
1605 addMultilibFlag(ABIName == "lp64f", "mabi=lp64f", Flags);
1606 addMultilibFlag(ABIName == "lp64d", "mabi=lp64d", Flags);
1608 if (RISCVMultilibs.select(Flags, Result.SelectedMultilib))
1609 Result.Multilibs = RISCVMultilibs;
1612 static bool findBiarchMultilibs(const Driver &D,
1613 const llvm::Triple &TargetTriple,
1614 StringRef Path, const ArgList &Args,
1615 bool NeedsBiarchSuffix,
1616 DetectedMultilibs &Result) {
1619 // Some versions of SUSE and Fedora on ppc64 put 32-bit libs
1620 // in what would normally be GCCInstallPath and put the 64-bit
1621 // libs in a subdirectory named 64. The simple logic we follow is that
1622 // *if* there is a subdirectory of the right name with crtbegin.o in it,
1623 // we use that. If not, and if not a biarch triple alias, we look for
1624 // crtbegin.o without the subdirectory.
1626 StringRef Suff64 = "/64";
1627 // Solaris uses platform-specific suffixes instead of /64.
1628 if (TargetTriple.getOS() == llvm::Triple::Solaris) {
1629 switch (TargetTriple.getArch()) {
1630 case llvm::Triple::x86:
1631 case llvm::Triple::x86_64:
1634 case llvm::Triple::sparc:
1635 case llvm::Triple::sparcv9:
1636 Suff64 = "/sparcv9";
1643 Multilib Alt64 = Multilib()
1645 .includeSuffix(Suff64)
1649 Multilib Alt32 = Multilib()
1651 .includeSuffix("/32")
1655 Multilib Altx32 = Multilib()
1657 .includeSuffix("/x32")
1662 // GCC toolchain for IAMCU doesn't have crtbegin.o, so look for libgcc.a.
1663 FilterNonExistent NonExistent(
1664 Path, TargetTriple.isOSIAMCU() ? "/libgcc.a" : "/crtbegin.o", D.getVFS());
1666 // Determine default multilib from: 32, 64, x32
1667 // Also handle cases such as 64 on 32, 32 on 64, etc.
1668 enum { UNKNOWN, WANT32, WANT64, WANTX32 } Want = UNKNOWN;
1669 const bool IsX32 = TargetTriple.getEnvironment() == llvm::Triple::GNUX32;
1670 if (TargetTriple.isArch32Bit() && !NonExistent(Alt32))
1672 else if (TargetTriple.isArch64Bit() && IsX32 && !NonExistent(Altx32))
1674 else if (TargetTriple.isArch64Bit() && !IsX32 && !NonExistent(Alt64))
1677 if (TargetTriple.isArch32Bit())
1678 Want = NeedsBiarchSuffix ? WANT64 : WANT32;
1680 Want = NeedsBiarchSuffix ? WANT64 : WANTX32;
1682 Want = NeedsBiarchSuffix ? WANT32 : WANT64;
1686 Default.flag("+m32").flag("-m64").flag("-mx32");
1687 else if (Want == WANT64)
1688 Default.flag("-m32").flag("+m64").flag("-mx32");
1689 else if (Want == WANTX32)
1690 Default.flag("-m32").flag("-m64").flag("+mx32");
1694 Result.Multilibs.push_back(Default);
1695 Result.Multilibs.push_back(Alt64);
1696 Result.Multilibs.push_back(Alt32);
1697 Result.Multilibs.push_back(Altx32);
1699 Result.Multilibs.FilterOut(NonExistent);
1701 Multilib::flags_list Flags;
1702 addMultilibFlag(TargetTriple.isArch64Bit() && !IsX32, "m64", Flags);
1703 addMultilibFlag(TargetTriple.isArch32Bit(), "m32", Flags);
1704 addMultilibFlag(TargetTriple.isArch64Bit() && IsX32, "mx32", Flags);
1706 if (!Result.Multilibs.select(Flags, Result.SelectedMultilib))
1709 if (Result.SelectedMultilib == Alt64 || Result.SelectedMultilib == Alt32 ||
1710 Result.SelectedMultilib == Altx32)
1711 Result.BiarchSibling = Default;
1716 /// Generic_GCC - A tool chain using the 'gcc' command to perform
1717 /// all subcommands; this relies on gcc translating the majority of
1718 /// command line options.
1720 /// Less-than for GCCVersion, implementing a Strict Weak Ordering.
1721 bool Generic_GCC::GCCVersion::isOlderThan(int RHSMajor, int RHSMinor,
1723 StringRef RHSPatchSuffix) const {
1724 if (Major != RHSMajor)
1725 return Major < RHSMajor;
1726 if (Minor != RHSMinor)
1727 return Minor < RHSMinor;
1728 if (Patch != RHSPatch) {
1729 // Note that versions without a specified patch sort higher than those with
1736 // Otherwise just sort on the patch itself.
1737 return Patch < RHSPatch;
1739 if (PatchSuffix != RHSPatchSuffix) {
1740 // Sort empty suffixes higher.
1741 if (RHSPatchSuffix.empty())
1743 if (PatchSuffix.empty())
1746 // Provide a lexicographic sort to make this a total ordering.
1747 return PatchSuffix < RHSPatchSuffix;
1750 // The versions are equal.
1754 /// Parse a GCCVersion object out of a string of text.
1756 /// This is the primary means of forming GCCVersion objects.
1758 Generic_GCC::GCCVersion Generic_GCC::GCCVersion::Parse(StringRef VersionText) {
1759 const GCCVersion BadVersion = {VersionText.str(), -1, -1, -1, "", "", ""};
1760 std::pair<StringRef, StringRef> First = VersionText.split('.');
1761 std::pair<StringRef, StringRef> Second = First.second.split('.');
1763 GCCVersion GoodVersion = {VersionText.str(), -1, -1, -1, "", "", ""};
1764 if (First.first.getAsInteger(10, GoodVersion.Major) || GoodVersion.Major < 0)
1766 GoodVersion.MajorStr = First.first.str();
1767 if (First.second.empty())
1769 StringRef MinorStr = Second.first;
1770 if (Second.second.empty()) {
1771 if (size_t EndNumber = MinorStr.find_first_not_of("0123456789")) {
1772 GoodVersion.PatchSuffix = MinorStr.substr(EndNumber);
1773 MinorStr = MinorStr.slice(0, EndNumber);
1776 if (MinorStr.getAsInteger(10, GoodVersion.Minor) || GoodVersion.Minor < 0)
1778 GoodVersion.MinorStr = MinorStr.str();
1780 // First look for a number prefix and parse that if present. Otherwise just
1781 // stash the entire patch string in the suffix, and leave the number
1782 // unspecified. This covers versions strings such as:
1783 // 5 (handled above)
1790 // And retains any patch number it finds.
1791 StringRef PatchText = Second.second;
1792 if (!PatchText.empty()) {
1793 if (size_t EndNumber = PatchText.find_first_not_of("0123456789")) {
1794 // Try to parse the number and any suffix.
1795 if (PatchText.slice(0, EndNumber).getAsInteger(10, GoodVersion.Patch) ||
1796 GoodVersion.Patch < 0)
1798 GoodVersion.PatchSuffix = PatchText.substr(EndNumber);
1805 static llvm::StringRef getGCCToolchainDir(const ArgList &Args,
1806 llvm::StringRef SysRoot) {
1807 const Arg *A = Args.getLastArg(clang::driver::options::OPT_gcc_toolchain);
1809 return A->getValue();
1811 // If we have a SysRoot, ignore GCC_INSTALL_PREFIX.
1812 // GCC_INSTALL_PREFIX specifies the gcc installation for the default
1813 // sysroot and is likely not valid with a different sysroot.
1814 if (!SysRoot.empty())
1817 return GCC_INSTALL_PREFIX;
1820 /// Initialize a GCCInstallationDetector from the driver.
1822 /// This performs all of the autodetection and sets up the various paths.
1823 /// Once constructed, a GCCInstallationDetector is essentially immutable.
1825 /// FIXME: We shouldn't need an explicit TargetTriple parameter here, and
1826 /// should instead pull the target out of the driver. This is currently
1827 /// necessary because the driver doesn't store the final version of the target
1829 void Generic_GCC::GCCInstallationDetector::init(
1830 const llvm::Triple &TargetTriple, const ArgList &Args,
1831 ArrayRef<std::string> ExtraTripleAliases) {
1832 llvm::Triple BiarchVariantTriple = TargetTriple.isArch32Bit()
1833 ? TargetTriple.get64BitArchVariant()
1834 : TargetTriple.get32BitArchVariant();
1835 // The library directories which may contain GCC installations.
1836 SmallVector<StringRef, 4> CandidateLibDirs, CandidateBiarchLibDirs;
1837 // The compatible GCC triples for this particular architecture.
1838 SmallVector<StringRef, 16> CandidateTripleAliases;
1839 SmallVector<StringRef, 16> CandidateBiarchTripleAliases;
1840 CollectLibDirsAndTriples(TargetTriple, BiarchVariantTriple, CandidateLibDirs,
1841 CandidateTripleAliases, CandidateBiarchLibDirs,
1842 CandidateBiarchTripleAliases);
1844 // Compute the set of prefixes for our search.
1845 SmallVector<std::string, 8> Prefixes(D.PrefixDirs.begin(),
1846 D.PrefixDirs.end());
1848 StringRef GCCToolchainDir = getGCCToolchainDir(Args, D.SysRoot);
1849 if (GCCToolchainDir != "") {
1850 if (GCCToolchainDir.back() == '/')
1851 GCCToolchainDir = GCCToolchainDir.drop_back(); // remove the /
1853 Prefixes.push_back(GCCToolchainDir);
1855 // If we have a SysRoot, try that first.
1856 if (!D.SysRoot.empty()) {
1857 Prefixes.push_back(D.SysRoot);
1858 AddDefaultGCCPrefixes(TargetTriple, Prefixes, D.SysRoot);
1861 // Then look for gcc installed alongside clang.
1862 Prefixes.push_back(D.InstalledDir + "/..");
1864 // Next, look for prefix(es) that correspond to distribution-supplied gcc
1866 if (D.SysRoot.empty()) {
1868 AddDefaultGCCPrefixes(TargetTriple, Prefixes, D.SysRoot);
1872 // Try to respect gcc-config on Gentoo. However, do that only
1873 // if --gcc-toolchain is not provided or equal to the Gentoo install
1874 // in /usr. This avoids accidentally enforcing the system GCC version
1875 // when using a custom toolchain.
1876 if (GCCToolchainDir == "" || GCCToolchainDir == D.SysRoot + "/usr") {
1877 SmallVector<StringRef, 16> GentooTestTriples;
1878 // Try to match an exact triple as target triple first.
1879 // e.g. crossdev -S x86_64-gentoo-linux-gnu will install gcc libs for
1880 // x86_64-gentoo-linux-gnu. But "clang -target x86_64-gentoo-linux-gnu"
1881 // may pick the libraries for x86_64-pc-linux-gnu even when exact matching
1882 // triple x86_64-gentoo-linux-gnu is present.
1883 GentooTestTriples.push_back(TargetTriple.str());
1884 // Check rest of triples.
1885 GentooTestTriples.append(ExtraTripleAliases.begin(),
1886 ExtraTripleAliases.end());
1887 GentooTestTriples.append(CandidateTripleAliases.begin(),
1888 CandidateTripleAliases.end());
1889 if (ScanGentooConfigs(TargetTriple, Args, GentooTestTriples,
1890 CandidateBiarchTripleAliases))
1894 // Loop over the various components which exist and select the best GCC
1895 // installation available. GCC installs are ranked by version number.
1896 Version = GCCVersion::Parse("0.0.0");
1897 for (const std::string &Prefix : Prefixes) {
1898 if (!D.getVFS().exists(Prefix))
1900 for (StringRef Suffix : CandidateLibDirs) {
1901 const std::string LibDir = Prefix + Suffix.str();
1902 if (!D.getVFS().exists(LibDir))
1904 // Try to match the exact target triple first.
1905 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, TargetTriple.str());
1906 // Try rest of possible triples.
1907 for (StringRef Candidate : ExtraTripleAliases) // Try these first.
1908 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate);
1909 for (StringRef Candidate : CandidateTripleAliases)
1910 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate);
1912 for (StringRef Suffix : CandidateBiarchLibDirs) {
1913 const std::string LibDir = Prefix + Suffix.str();
1914 if (!D.getVFS().exists(LibDir))
1916 for (StringRef Candidate : CandidateBiarchTripleAliases)
1917 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate,
1918 /*NeedsBiarchSuffix=*/ true);
1923 void Generic_GCC::GCCInstallationDetector::print(raw_ostream &OS) const {
1924 for (const auto &InstallPath : CandidateGCCInstallPaths)
1925 OS << "Found candidate GCC installation: " << InstallPath << "\n";
1927 if (!GCCInstallPath.empty())
1928 OS << "Selected GCC installation: " << GCCInstallPath << "\n";
1930 for (const auto &Multilib : Multilibs)
1931 OS << "Candidate multilib: " << Multilib << "\n";
1933 if (Multilibs.size() != 0 || !SelectedMultilib.isDefault())
1934 OS << "Selected multilib: " << SelectedMultilib << "\n";
1937 bool Generic_GCC::GCCInstallationDetector::getBiarchSibling(Multilib &M) const {
1938 if (BiarchSibling.hasValue()) {
1939 M = BiarchSibling.getValue();
1945 void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
1946 const llvm::Triple &TargetTriple, SmallVectorImpl<std::string> &Prefixes,
1947 StringRef SysRoot) {
1948 if (TargetTriple.getOS() == llvm::Triple::Solaris) {
1949 // Solaris is a special case.
1950 // The GCC installation is under
1951 // /usr/gcc/<major>.<minor>/lib/gcc/<triple>/<major>.<minor>.<patch>/
1952 // so we need to find those /usr/gcc/*/lib/gcc libdirs and go with
1953 // /usr/gcc/<version> as a prefix.
1955 std::string PrefixDir = SysRoot.str() + "/usr/gcc";
1957 for (llvm::vfs::directory_iterator LI = D.getVFS().dir_begin(PrefixDir, EC),
1959 !EC && LI != LE; LI = LI.increment(EC)) {
1960 StringRef VersionText = llvm::sys::path::filename(LI->path());
1961 GCCVersion CandidateVersion = GCCVersion::Parse(VersionText);
1963 // Filter out obviously bad entries.
1964 if (CandidateVersion.Major == -1 || CandidateVersion.isOlderThan(4, 1, 1))
1967 std::string CandidatePrefix = PrefixDir + "/" + VersionText.str();
1968 std::string CandidateLibPath = CandidatePrefix + "/lib/gcc";
1969 if (!D.getVFS().exists(CandidateLibPath))
1972 Prefixes.push_back(CandidatePrefix);
1977 // Non-Solaris is much simpler - most systems just go with "/usr".
1978 if (SysRoot.empty() && TargetTriple.getOS() == llvm::Triple::Linux) {
1979 // Yet, still look for RHEL devtoolsets.
1980 Prefixes.push_back("/opt/rh/devtoolset-8/root/usr");
1981 Prefixes.push_back("/opt/rh/devtoolset-7/root/usr");
1982 Prefixes.push_back("/opt/rh/devtoolset-6/root/usr");
1983 Prefixes.push_back("/opt/rh/devtoolset-4/root/usr");
1984 Prefixes.push_back("/opt/rh/devtoolset-3/root/usr");
1985 Prefixes.push_back("/opt/rh/devtoolset-2/root/usr");
1987 Prefixes.push_back(SysRoot.str() + "/usr");
1990 /*static*/ void Generic_GCC::GCCInstallationDetector::CollectLibDirsAndTriples(
1991 const llvm::Triple &TargetTriple, const llvm::Triple &BiarchTriple,
1992 SmallVectorImpl<StringRef> &LibDirs,
1993 SmallVectorImpl<StringRef> &TripleAliases,
1994 SmallVectorImpl<StringRef> &BiarchLibDirs,
1995 SmallVectorImpl<StringRef> &BiarchTripleAliases) {
1996 // Declare a bunch of static data sets that we'll select between below. These
1997 // are specifically designed to always refer to string literals to avoid any
1998 // lifetime or initialization issues.
1999 static const char *const AArch64LibDirs[] = {"/lib64", "/lib"};
2000 static const char *const AArch64Triples[] = {
2001 "aarch64-none-linux-gnu", "aarch64-linux-gnu", "aarch64-redhat-linux",
2002 "aarch64-suse-linux", "aarch64-linux-android"};
2003 static const char *const AArch64beLibDirs[] = {"/lib"};
2004 static const char *const AArch64beTriples[] = {"aarch64_be-none-linux-gnu",
2005 "aarch64_be-linux-gnu"};
2007 static const char *const ARMLibDirs[] = {"/lib"};
2008 static const char *const ARMTriples[] = {"arm-linux-gnueabi",
2009 "arm-linux-androideabi"};
2010 static const char *const ARMHFTriples[] = {"arm-linux-gnueabihf",
2011 "armv7hl-redhat-linux-gnueabi",
2012 "armv6hl-suse-linux-gnueabi",
2013 "armv7hl-suse-linux-gnueabi"};
2014 static const char *const ARMebLibDirs[] = {"/lib"};
2015 static const char *const ARMebTriples[] = {"armeb-linux-gnueabi",
2016 "armeb-linux-androideabi"};
2017 static const char *const ARMebHFTriples[] = {
2018 "armeb-linux-gnueabihf", "armebv7hl-redhat-linux-gnueabi"};
2020 static const char *const AVRLibDirs[] = {"/lib"};
2021 static const char *const AVRTriples[] = {"avr"};
2023 static const char *const X86_64LibDirs[] = {"/lib64", "/lib"};
2024 static const char *const X86_64Triples[] = {
2025 "x86_64-linux-gnu", "x86_64-unknown-linux-gnu",
2026 "x86_64-pc-linux-gnu", "x86_64-redhat-linux6E",
2027 "x86_64-redhat-linux", "x86_64-suse-linux",
2028 "x86_64-manbo-linux-gnu", "x86_64-linux-gnu",
2029 "x86_64-slackware-linux", "x86_64-unknown-linux",
2030 "x86_64-amazon-linux", "x86_64-linux-android"};
2031 static const char *const X32LibDirs[] = {"/libx32"};
2032 static const char *const X86LibDirs[] = {"/lib32", "/lib"};
2033 static const char *const X86Triples[] = {
2034 "i686-linux-gnu", "i686-pc-linux-gnu", "i486-linux-gnu",
2035 "i386-linux-gnu", "i386-redhat-linux6E", "i686-redhat-linux",
2036 "i586-redhat-linux", "i386-redhat-linux", "i586-suse-linux",
2037 "i486-slackware-linux", "i686-montavista-linux", "i586-linux-gnu",
2038 "i686-linux-android", "i386-gnu", "i486-gnu",
2039 "i586-gnu", "i686-gnu"};
2041 static const char *const MIPSLibDirs[] = {"/lib"};
2042 static const char *const MIPSTriples[] = {
2043 "mips-linux-gnu", "mips-mti-linux", "mips-mti-linux-gnu",
2044 "mips-img-linux-gnu", "mipsisa32r6-linux-gnu"};
2045 static const char *const MIPSELLibDirs[] = {"/lib"};
2046 static const char *const MIPSELTriples[] = {
2047 "mipsel-linux-gnu", "mips-img-linux-gnu", "mipsisa32r6el-linux-gnu",
2048 "mipsel-linux-android"};
2050 static const char *const MIPS64LibDirs[] = {"/lib64", "/lib"};
2051 static const char *const MIPS64Triples[] = {
2052 "mips64-linux-gnu", "mips-mti-linux-gnu",
2053 "mips-img-linux-gnu", "mips64-linux-gnuabi64",
2054 "mipsisa64r6-linux-gnu", "mipsisa64r6-linux-gnuabi64"};
2055 static const char *const MIPS64ELLibDirs[] = {"/lib64", "/lib"};
2056 static const char *const MIPS64ELTriples[] = {
2057 "mips64el-linux-gnu", "mips-mti-linux-gnu",
2058 "mips-img-linux-gnu", "mips64el-linux-gnuabi64",
2059 "mipsisa64r6el-linux-gnu", "mipsisa64r6el-linux-gnuabi64",
2060 "mips64el-linux-android"};
2062 static const char *const MIPSN32LibDirs[] = {"/lib32"};
2063 static const char *const MIPSN32Triples[] = {"mips64-linux-gnuabin32",
2064 "mipsisa64r6-linux-gnuabin32"};
2065 static const char *const MIPSN32ELLibDirs[] = {"/lib32"};
2066 static const char *const MIPSN32ELTriples[] = {
2067 "mips64el-linux-gnuabin32", "mipsisa64r6el-linux-gnuabin32"};
2069 static const char *const MSP430LibDirs[] = {"/lib"};
2070 static const char *const MSP430Triples[] = {"msp430-elf"};
2072 static const char *const PPCLibDirs[] = {"/lib32", "/lib"};
2073 static const char *const PPCTriples[] = {
2074 "powerpc-linux-gnu", "powerpc-unknown-linux-gnu", "powerpc-linux-gnuspe",
2075 // On 32-bit PowerPC systems running SUSE Linux, gcc is configured as a
2076 // 64-bit compiler which defaults to "-m32", hence "powerpc64-suse-linux".
2077 "powerpc64-suse-linux", "powerpc-montavista-linuxspe"};
2078 static const char *const PPC64LibDirs[] = {"/lib64", "/lib"};
2079 static const char *const PPC64Triples[] = {
2080 "powerpc64-linux-gnu", "powerpc64-unknown-linux-gnu",
2081 "powerpc64-suse-linux", "ppc64-redhat-linux"};
2082 static const char *const PPC64LELibDirs[] = {"/lib64", "/lib"};
2083 static const char *const PPC64LETriples[] = {
2084 "powerpc64le-linux-gnu", "powerpc64le-unknown-linux-gnu",
2085 "powerpc64le-suse-linux", "ppc64le-redhat-linux"};
2087 static const char *const RISCV32LibDirs[] = {"/lib32", "/lib"};
2088 static const char *const RISCV32Triples[] = {"riscv32-unknown-linux-gnu",
2089 "riscv32-linux-gnu",
2090 "riscv32-unknown-elf"};
2091 static const char *const RISCV64LibDirs[] = {"/lib64", "/lib"};
2092 static const char *const RISCV64Triples[] = {"riscv64-unknown-linux-gnu",
2093 "riscv64-linux-gnu",
2094 "riscv64-unknown-elf",
2095 "riscv64-suse-linux"};
2097 static const char *const SPARCv8LibDirs[] = {"/lib32", "/lib"};
2098 static const char *const SPARCv8Triples[] = {"sparc-linux-gnu",
2099 "sparcv8-linux-gnu"};
2100 static const char *const SPARCv9LibDirs[] = {"/lib64", "/lib"};
2101 static const char *const SPARCv9Triples[] = {"sparc64-linux-gnu",
2102 "sparcv9-linux-gnu"};
2104 static const char *const SystemZLibDirs[] = {"/lib64", "/lib"};
2105 static const char *const SystemZTriples[] = {
2106 "s390x-linux-gnu", "s390x-unknown-linux-gnu", "s390x-ibm-linux-gnu",
2107 "s390x-suse-linux", "s390x-redhat-linux"};
2113 if (TargetTriple.getOS() == llvm::Triple::Solaris) {
2114 static const char *const SolarisLibDirs[] = {"/lib"};
2115 static const char *const SolarisSparcV8Triples[] = {
2116 "sparc-sun-solaris2.11", "sparc-sun-solaris2.12"};
2117 static const char *const SolarisSparcV9Triples[] = {
2118 "sparcv9-sun-solaris2.11", "sparcv9-sun-solaris2.12"};
2119 static const char *const SolarisX86Triples[] = {"i386-pc-solaris2.11",
2120 "i386-pc-solaris2.12"};
2121 static const char *const SolarisX86_64Triples[] = {"x86_64-pc-solaris2.11",
2122 "x86_64-pc-solaris2.12"};
2123 LibDirs.append(begin(SolarisLibDirs), end(SolarisLibDirs));
2124 BiarchLibDirs.append(begin(SolarisLibDirs), end(SolarisLibDirs));
2125 switch (TargetTriple.getArch()) {
2126 case llvm::Triple::x86:
2127 TripleAliases.append(begin(SolarisX86Triples), end(SolarisX86Triples));
2128 BiarchTripleAliases.append(begin(SolarisX86_64Triples),
2129 end(SolarisX86_64Triples));
2131 case llvm::Triple::x86_64:
2132 TripleAliases.append(begin(SolarisX86_64Triples),
2133 end(SolarisX86_64Triples));
2134 BiarchTripleAliases.append(begin(SolarisX86Triples),
2135 end(SolarisX86Triples));
2137 case llvm::Triple::sparc:
2138 TripleAliases.append(begin(SolarisSparcV8Triples),
2139 end(SolarisSparcV8Triples));
2140 BiarchTripleAliases.append(begin(SolarisSparcV9Triples),
2141 end(SolarisSparcV9Triples));
2143 case llvm::Triple::sparcv9:
2144 TripleAliases.append(begin(SolarisSparcV9Triples),
2145 end(SolarisSparcV9Triples));
2146 BiarchTripleAliases.append(begin(SolarisSparcV8Triples),
2147 end(SolarisSparcV8Triples));
2155 // Android targets should not use GNU/Linux tools or libraries.
2156 if (TargetTriple.isAndroid()) {
2157 static const char *const AArch64AndroidTriples[] = {
2158 "aarch64-linux-android"};
2159 static const char *const ARMAndroidTriples[] = {"arm-linux-androideabi"};
2160 static const char *const MIPSELAndroidTriples[] = {"mipsel-linux-android"};
2161 static const char *const MIPS64ELAndroidTriples[] = {
2162 "mips64el-linux-android"};
2163 static const char *const X86AndroidTriples[] = {"i686-linux-android"};
2164 static const char *const X86_64AndroidTriples[] = {"x86_64-linux-android"};
2166 switch (TargetTriple.getArch()) {
2167 case llvm::Triple::aarch64:
2168 LibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
2169 TripleAliases.append(begin(AArch64AndroidTriples),
2170 end(AArch64AndroidTriples));
2172 case llvm::Triple::arm:
2173 case llvm::Triple::thumb:
2174 LibDirs.append(begin(ARMLibDirs), end(ARMLibDirs));
2175 TripleAliases.append(begin(ARMAndroidTriples), end(ARMAndroidTriples));
2177 case llvm::Triple::mipsel:
2178 LibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs));
2179 TripleAliases.append(begin(MIPSELAndroidTriples),
2180 end(MIPSELAndroidTriples));
2181 BiarchLibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs));
2182 BiarchTripleAliases.append(begin(MIPS64ELAndroidTriples),
2183 end(MIPS64ELAndroidTriples));
2185 case llvm::Triple::mips64el:
2186 LibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs));
2187 TripleAliases.append(begin(MIPS64ELAndroidTriples),
2188 end(MIPS64ELAndroidTriples));
2189 BiarchLibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs));
2190 BiarchTripleAliases.append(begin(MIPSELAndroidTriples),
2191 end(MIPSELAndroidTriples));
2193 case llvm::Triple::x86_64:
2194 LibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2195 TripleAliases.append(begin(X86_64AndroidTriples),
2196 end(X86_64AndroidTriples));
2197 BiarchLibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2198 BiarchTripleAliases.append(begin(X86AndroidTriples),
2199 end(X86AndroidTriples));
2201 case llvm::Triple::x86:
2202 LibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2203 TripleAliases.append(begin(X86AndroidTriples), end(X86AndroidTriples));
2204 BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2205 BiarchTripleAliases.append(begin(X86_64AndroidTriples),
2206 end(X86_64AndroidTriples));
2215 switch (TargetTriple.getArch()) {
2216 case llvm::Triple::aarch64:
2217 LibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
2218 TripleAliases.append(begin(AArch64Triples), end(AArch64Triples));
2219 BiarchLibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
2220 BiarchTripleAliases.append(begin(AArch64Triples), end(AArch64Triples));
2222 case llvm::Triple::aarch64_be:
2223 LibDirs.append(begin(AArch64beLibDirs), end(AArch64beLibDirs));
2224 TripleAliases.append(begin(AArch64beTriples), end(AArch64beTriples));
2225 BiarchLibDirs.append(begin(AArch64beLibDirs), end(AArch64beLibDirs));
2226 BiarchTripleAliases.append(begin(AArch64beTriples), end(AArch64beTriples));
2228 case llvm::Triple::arm:
2229 case llvm::Triple::thumb:
2230 LibDirs.append(begin(ARMLibDirs), end(ARMLibDirs));
2231 if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF) {
2232 TripleAliases.append(begin(ARMHFTriples), end(ARMHFTriples));
2234 TripleAliases.append(begin(ARMTriples), end(ARMTriples));
2237 case llvm::Triple::armeb:
2238 case llvm::Triple::thumbeb:
2239 LibDirs.append(begin(ARMebLibDirs), end(ARMebLibDirs));
2240 if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF) {
2241 TripleAliases.append(begin(ARMebHFTriples), end(ARMebHFTriples));
2243 TripleAliases.append(begin(ARMebTriples), end(ARMebTriples));
2246 case llvm::Triple::avr:
2247 LibDirs.append(begin(AVRLibDirs), end(AVRLibDirs));
2248 TripleAliases.append(begin(AVRTriples), end(AVRTriples));
2250 case llvm::Triple::x86_64:
2251 LibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2252 TripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
2253 // x32 is always available when x86_64 is available, so adding it as
2254 // secondary arch with x86_64 triples
2255 if (TargetTriple.getEnvironment() == llvm::Triple::GNUX32) {
2256 BiarchLibDirs.append(begin(X32LibDirs), end(X32LibDirs));
2257 BiarchTripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
2259 BiarchLibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2260 BiarchTripleAliases.append(begin(X86Triples), end(X86Triples));
2263 case llvm::Triple::x86:
2264 LibDirs.append(begin(X86LibDirs), end(X86LibDirs));
2265 // MCU toolchain is 32 bit only and its triple alias is TargetTriple
2266 // itself, which will be appended below.
2267 if (!TargetTriple.isOSIAMCU()) {
2268 TripleAliases.append(begin(X86Triples), end(X86Triples));
2269 BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
2270 BiarchTripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
2273 case llvm::Triple::mips:
2274 LibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs));
2275 TripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2276 BiarchLibDirs.append(begin(MIPS64LibDirs), end(MIPS64LibDirs));
2277 BiarchTripleAliases.append(begin(MIPS64Triples), end(MIPS64Triples));
2278 BiarchLibDirs.append(begin(MIPSN32LibDirs), end(MIPSN32LibDirs));
2279 BiarchTripleAliases.append(begin(MIPSN32Triples), end(MIPSN32Triples));
2281 case llvm::Triple::mipsel:
2282 LibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs));
2283 TripleAliases.append(begin(MIPSELTriples), end(MIPSELTriples));
2284 TripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2285 BiarchLibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs));
2286 BiarchTripleAliases.append(begin(MIPS64ELTriples), end(MIPS64ELTriples));
2287 BiarchLibDirs.append(begin(MIPSN32ELLibDirs), end(MIPSN32ELLibDirs));
2288 BiarchTripleAliases.append(begin(MIPSN32ELTriples), end(MIPSN32ELTriples));
2290 case llvm::Triple::mips64:
2291 LibDirs.append(begin(MIPS64LibDirs), end(MIPS64LibDirs));
2292 TripleAliases.append(begin(MIPS64Triples), end(MIPS64Triples));
2293 BiarchLibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs));
2294 BiarchTripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2295 BiarchLibDirs.append(begin(MIPSN32LibDirs), end(MIPSN32LibDirs));
2296 BiarchTripleAliases.append(begin(MIPSN32Triples), end(MIPSN32Triples));
2298 case llvm::Triple::mips64el:
2299 LibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs));
2300 TripleAliases.append(begin(MIPS64ELTriples), end(MIPS64ELTriples));
2301 BiarchLibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs));
2302 BiarchTripleAliases.append(begin(MIPSELTriples), end(MIPSELTriples));
2303 BiarchLibDirs.append(begin(MIPSN32ELLibDirs), end(MIPSN32ELLibDirs));
2304 BiarchTripleAliases.append(begin(MIPSN32ELTriples), end(MIPSN32ELTriples));
2305 BiarchTripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2307 case llvm::Triple::msp430:
2308 LibDirs.append(begin(MSP430LibDirs), end(MSP430LibDirs));
2309 TripleAliases.append(begin(MSP430Triples), end(MSP430Triples));
2311 case llvm::Triple::ppc:
2312 LibDirs.append(begin(PPCLibDirs), end(PPCLibDirs));
2313 TripleAliases.append(begin(PPCTriples), end(PPCTriples));
2314 BiarchLibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs));
2315 BiarchTripleAliases.append(begin(PPC64Triples), end(PPC64Triples));
2317 case llvm::Triple::ppc64:
2318 LibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs));
2319 TripleAliases.append(begin(PPC64Triples), end(PPC64Triples));
2320 BiarchLibDirs.append(begin(PPCLibDirs), end(PPCLibDirs));
2321 BiarchTripleAliases.append(begin(PPCTriples), end(PPCTriples));
2323 case llvm::Triple::ppc64le:
2324 LibDirs.append(begin(PPC64LELibDirs), end(PPC64LELibDirs));
2325 TripleAliases.append(begin(PPC64LETriples), end(PPC64LETriples));
2327 case llvm::Triple::riscv32:
2328 LibDirs.append(begin(RISCV32LibDirs), end(RISCV32LibDirs));
2329 TripleAliases.append(begin(RISCV32Triples), end(RISCV32Triples));
2330 BiarchLibDirs.append(begin(RISCV64LibDirs), end(RISCV64LibDirs));
2331 BiarchTripleAliases.append(begin(RISCV64Triples), end(RISCV64Triples));
2333 case llvm::Triple::riscv64:
2334 LibDirs.append(begin(RISCV64LibDirs), end(RISCV64LibDirs));
2335 TripleAliases.append(begin(RISCV64Triples), end(RISCV64Triples));
2336 BiarchLibDirs.append(begin(RISCV32LibDirs), end(RISCV32LibDirs));
2337 BiarchTripleAliases.append(begin(RISCV32Triples), end(RISCV32Triples));
2339 case llvm::Triple::sparc:
2340 case llvm::Triple::sparcel:
2341 LibDirs.append(begin(SPARCv8LibDirs), end(SPARCv8LibDirs));
2342 TripleAliases.append(begin(SPARCv8Triples), end(SPARCv8Triples));
2343 BiarchLibDirs.append(begin(SPARCv9LibDirs), end(SPARCv9LibDirs));
2344 BiarchTripleAliases.append(begin(SPARCv9Triples), end(SPARCv9Triples));
2346 case llvm::Triple::sparcv9:
2347 LibDirs.append(begin(SPARCv9LibDirs), end(SPARCv9LibDirs));
2348 TripleAliases.append(begin(SPARCv9Triples), end(SPARCv9Triples));
2349 BiarchLibDirs.append(begin(SPARCv8LibDirs), end(SPARCv8LibDirs));
2350 BiarchTripleAliases.append(begin(SPARCv8Triples), end(SPARCv8Triples));
2352 case llvm::Triple::systemz:
2353 LibDirs.append(begin(SystemZLibDirs), end(SystemZLibDirs));
2354 TripleAliases.append(begin(SystemZTriples), end(SystemZTriples));
2357 // By default, just rely on the standard lib directories and the original
2362 // Always append the drivers target triple to the end, in case it doesn't
2363 // match any of our aliases.
2364 TripleAliases.push_back(TargetTriple.str());
2366 // Also include the multiarch variant if it's different.
2367 if (TargetTriple.str() != BiarchTriple.str())
2368 BiarchTripleAliases.push_back(BiarchTriple.str());
2371 bool Generic_GCC::GCCInstallationDetector::ScanGCCForMultilibs(
2372 const llvm::Triple &TargetTriple, const ArgList &Args,
2373 StringRef Path, bool NeedsBiarchSuffix) {
2374 llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
2375 DetectedMultilibs Detected;
2377 // Android standalone toolchain could have multilibs for ARM and Thumb.
2378 // Debian mips multilibs behave more like the rest of the biarch ones,
2379 // so handle them there
2380 if (isArmOrThumbArch(TargetArch) && TargetTriple.isAndroid()) {
2381 // It should also work without multilibs in a simplified toolchain.
2382 findAndroidArmMultilibs(D, TargetTriple, Path, Args, Detected);
2383 } else if (TargetTriple.isMIPS()) {
2384 if (!findMIPSMultilibs(D, TargetTriple, Path, Args, Detected))
2386 } else if (TargetTriple.isRISCV()) {
2387 findRISCVMultilibs(D, TargetTriple, Path, Args, Detected);
2388 } else if (isMSP430(TargetArch)) {
2389 findMSP430Multilibs(D, TargetTriple, Path, Args, Detected);
2390 } else if (TargetArch == llvm::Triple::avr) {
2391 // AVR has no multilibs.
2392 } else if (!findBiarchMultilibs(D, TargetTriple, Path, Args,
2393 NeedsBiarchSuffix, Detected)) {
2397 Multilibs = Detected.Multilibs;
2398 SelectedMultilib = Detected.SelectedMultilib;
2399 BiarchSibling = Detected.BiarchSibling;
2404 void Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple(
2405 const llvm::Triple &TargetTriple, const ArgList &Args,
2406 const std::string &LibDir, StringRef CandidateTriple,
2407 bool NeedsBiarchSuffix) {
2408 llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
2409 // Locations relative to the system lib directory where GCC's triple-specific
2410 // directories might reside.
2411 struct GCCLibSuffix {
2412 // Path from system lib directory to GCC triple-specific directory.
2413 std::string LibSuffix;
2414 // Path from GCC triple-specific directory back to system lib directory.
2415 // This is one '..' component per component in LibSuffix.
2416 StringRef ReversePath;
2417 // Whether this library suffix is relevant for the triple.
2420 // This is the normal place.
2421 {"gcc/" + CandidateTriple.str(), "../..", true},
2423 // Debian puts cross-compilers in gcc-cross.
2424 {"gcc-cross/" + CandidateTriple.str(), "../..",
2425 TargetTriple.getOS() != llvm::Triple::Solaris},
2427 // The Freescale PPC SDK has the gcc libraries in
2428 // <sysroot>/usr/lib/<triple>/x.y.z so have a look there as well. Only do
2429 // this on Freescale triples, though, since some systems put a *lot* of
2430 // files in that location, not just GCC installation data.
2431 {CandidateTriple.str(), "..",
2432 TargetTriple.getVendor() == llvm::Triple::Freescale ||
2433 TargetTriple.getVendor() == llvm::Triple::OpenEmbedded},
2435 // Natively multiarch systems sometimes put the GCC triple-specific
2436 // directory within their multiarch lib directory, resulting in the
2437 // triple appearing twice.
2438 {CandidateTriple.str() + "/gcc/" + CandidateTriple.str(), "../../..",
2439 TargetTriple.getOS() != llvm::Triple::Solaris},
2441 // Deal with cases (on Ubuntu) where the system architecture could be i386
2442 // but the GCC target architecture could be (say) i686.
2443 // FIXME: It may be worthwhile to generalize this and look for a second
2445 {"i386-linux-gnu/gcc/" + CandidateTriple.str(), "../../..",
2446 (TargetArch == llvm::Triple::x86 &&
2447 TargetTriple.getOS() != llvm::Triple::Solaris)},
2448 {"i386-gnu/gcc/" + CandidateTriple.str(), "../../..",
2449 (TargetArch == llvm::Triple::x86 &&
2450 TargetTriple.getOS() != llvm::Triple::Solaris)}};
2452 for (auto &Suffix : Suffixes) {
2456 StringRef LibSuffix = Suffix.LibSuffix;
2458 for (llvm::vfs::directory_iterator
2459 LI = D.getVFS().dir_begin(LibDir + "/" + LibSuffix, EC),
2461 !EC && LI != LE; LI = LI.increment(EC)) {
2462 StringRef VersionText = llvm::sys::path::filename(LI->path());
2463 GCCVersion CandidateVersion = GCCVersion::Parse(VersionText);
2464 if (CandidateVersion.Major != -1) // Filter obviously bad entries.
2465 if (!CandidateGCCInstallPaths.insert(LI->path()).second)
2466 continue; // Saw this path before; no need to look at it again.
2467 if (CandidateVersion.isOlderThan(4, 1, 1))
2469 if (CandidateVersion <= Version)
2472 if (!ScanGCCForMultilibs(TargetTriple, Args, LI->path(),
2476 Version = CandidateVersion;
2477 GCCTriple.setTriple(CandidateTriple);
2478 // FIXME: We hack together the directory name here instead of
2479 // using LI to ensure stable path separators across Windows and
2481 GCCInstallPath = (LibDir + "/" + LibSuffix + "/" + VersionText).str();
2482 GCCParentLibPath = (GCCInstallPath + "/../" + Suffix.ReversePath).str();
2488 bool Generic_GCC::GCCInstallationDetector::ScanGentooConfigs(
2489 const llvm::Triple &TargetTriple, const ArgList &Args,
2490 const SmallVectorImpl<StringRef> &CandidateTriples,
2491 const SmallVectorImpl<StringRef> &CandidateBiarchTriples) {
2492 for (StringRef CandidateTriple : CandidateTriples) {
2493 if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple))
2497 for (StringRef CandidateTriple : CandidateBiarchTriples) {
2498 if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple, true))
2504 bool Generic_GCC::GCCInstallationDetector::ScanGentooGccConfig(
2505 const llvm::Triple &TargetTriple, const ArgList &Args,
2506 StringRef CandidateTriple, bool NeedsBiarchSuffix) {
2507 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> File =
2508 D.getVFS().getBufferForFile(D.SysRoot + "/etc/env.d/gcc/config-" +
2509 CandidateTriple.str());
2511 SmallVector<StringRef, 2> Lines;
2512 File.get()->getBuffer().split(Lines, "\n");
2513 for (StringRef Line : Lines) {
2515 // CURRENT=triple-version
2516 if (!Line.consume_front("CURRENT="))
2518 // Process the config file pointed to by CURRENT.
2519 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> ConfigFile =
2520 D.getVFS().getBufferForFile(D.SysRoot + "/etc/env.d/gcc/" +
2522 std::pair<StringRef, StringRef> ActiveVersion = Line.rsplit('-');
2523 // List of paths to scan for libraries.
2524 SmallVector<StringRef, 4> GentooScanPaths;
2525 // Scan the Config file to find installed GCC libraries path.
2526 // Typical content of the GCC config file:
2527 // LDPATH="/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.x:/usr/lib/gcc/
2528 // (continued from previous line) x86_64-pc-linux-gnu/4.9.x/32"
2529 // MANPATH="/usr/share/gcc-data/x86_64-pc-linux-gnu/4.9.x/man"
2530 // INFOPATH="/usr/share/gcc-data/x86_64-pc-linux-gnu/4.9.x/info"
2531 // STDCXX_INCDIR="/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.x/include/g++-v4"
2532 // We are looking for the paths listed in LDPATH=... .
2534 SmallVector<StringRef, 2> ConfigLines;
2535 ConfigFile.get()->getBuffer().split(ConfigLines, "\n");
2536 for (StringRef ConfLine : ConfigLines) {
2537 ConfLine = ConfLine.trim();
2538 if (ConfLine.consume_front("LDPATH=")) {
2539 // Drop '"' from front and back if present.
2540 ConfLine.consume_back("\"");
2541 ConfLine.consume_front("\"");
2542 // Get all paths sperated by ':'
2543 ConfLine.split(GentooScanPaths, ':', -1, /*AllowEmpty*/ false);
2547 // Test the path based on the version in /etc/env.d/gcc/config-{tuple}.
2548 std::string basePath = "/usr/lib/gcc/" + ActiveVersion.first.str() + "/"
2549 + ActiveVersion.second.str();
2550 GentooScanPaths.push_back(StringRef(basePath));
2552 // Scan all paths for GCC libraries.
2553 for (const auto &GentooScanPath : GentooScanPaths) {
2554 std::string GentooPath = D.SysRoot + std::string(GentooScanPath);
2555 if (D.getVFS().exists(GentooPath + "/crtbegin.o")) {
2556 if (!ScanGCCForMultilibs(TargetTriple, Args, GentooPath,
2560 Version = GCCVersion::Parse(ActiveVersion.second);
2561 GCCInstallPath = GentooPath;
2562 GCCParentLibPath = GentooPath + std::string("/../../..");
2563 GCCTriple.setTriple(ActiveVersion.first);
2574 Generic_GCC::Generic_GCC(const Driver &D, const llvm::Triple &Triple,
2575 const ArgList &Args)
2576 : ToolChain(D, Triple, Args), GCCInstallation(D),
2577 CudaInstallation(D, Triple, Args) {
2578 getProgramPaths().push_back(getDriver().getInstalledDir());
2579 if (getDriver().getInstalledDir() != getDriver().Dir)
2580 getProgramPaths().push_back(getDriver().Dir);
2583 Generic_GCC::~Generic_GCC() {}
2585 Tool *Generic_GCC::getTool(Action::ActionClass AC) const {
2587 case Action::PreprocessJobClass:
2589 Preprocess.reset(new clang::driver::tools::gcc::Preprocessor(*this));
2590 return Preprocess.get();
2591 case Action::CompileJobClass:
2593 Compile.reset(new tools::gcc::Compiler(*this));
2594 return Compile.get();
2596 return ToolChain::getTool(AC);
2600 Tool *Generic_GCC::buildAssembler() const {
2601 return new tools::gnutools::Assembler(*this);
2604 Tool *Generic_GCC::buildLinker() const { return new tools::gcc::Linker(*this); }
2606 void Generic_GCC::printVerboseInfo(raw_ostream &OS) const {
2607 // Print the information about how we detected the GCC installation.
2608 GCCInstallation.print(OS);
2609 CudaInstallation.print(OS);
2612 bool Generic_GCC::IsUnwindTablesDefault(const ArgList &Args) const {
2613 return getArch() == llvm::Triple::x86_64;
2616 bool Generic_GCC::isPICDefault() const {
2617 switch (getArch()) {
2618 case llvm::Triple::x86_64:
2619 return getTriple().isOSWindows();
2620 case llvm::Triple::mips64:
2621 case llvm::Triple::mips64el:
2628 bool Generic_GCC::isPIEDefault() const { return false; }
2630 bool Generic_GCC::isPICDefaultForced() const {
2631 return getArch() == llvm::Triple::x86_64 && getTriple().isOSWindows();
2634 bool Generic_GCC::IsIntegratedAssemblerDefault() const {
2635 switch (getTriple().getArch()) {
2636 case llvm::Triple::x86:
2637 case llvm::Triple::x86_64:
2638 case llvm::Triple::aarch64:
2639 case llvm::Triple::aarch64_be:
2640 case llvm::Triple::arm:
2641 case llvm::Triple::armeb:
2642 case llvm::Triple::avr:
2643 case llvm::Triple::bpfel:
2644 case llvm::Triple::bpfeb:
2645 case llvm::Triple::thumb:
2646 case llvm::Triple::thumbeb:
2647 case llvm::Triple::ppc:
2648 case llvm::Triple::ppc64:
2649 case llvm::Triple::ppc64le:
2650 case llvm::Triple::riscv32:
2651 case llvm::Triple::riscv64:
2652 case llvm::Triple::systemz:
2653 case llvm::Triple::mips:
2654 case llvm::Triple::mipsel:
2655 case llvm::Triple::mips64:
2656 case llvm::Triple::mips64el:
2657 case llvm::Triple::msp430:
2659 case llvm::Triple::sparc:
2660 case llvm::Triple::sparcel:
2661 case llvm::Triple::sparcv9:
2662 if (getTriple().isOSFreeBSD() || getTriple().isOSOpenBSD() ||
2663 getTriple().isOSSolaris())
2671 void Generic_GCC::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
2672 ArgStringList &CC1Args) const {
2673 if (DriverArgs.hasArg(options::OPT_nostdlibinc) ||
2674 DriverArgs.hasArg(options::OPT_nostdincxx))
2677 switch (GetCXXStdlibType(DriverArgs)) {
2678 case ToolChain::CST_Libcxx:
2679 addLibCxxIncludePaths(DriverArgs, CC1Args);
2682 case ToolChain::CST_Libstdcxx:
2683 addLibStdCxxIncludePaths(DriverArgs, CC1Args);
2688 static std::string DetectLibcxxIncludePath(llvm::vfs::FileSystem &vfs,
2692 std::string MaxVersionString;
2693 for (llvm::vfs::directory_iterator LI = vfs.dir_begin(base, EC), LE;
2694 !EC && LI != LE; LI = LI.increment(EC)) {
2695 StringRef VersionText = llvm::sys::path::filename(LI->path());
2697 if (VersionText[0] == 'v' &&
2698 !VersionText.slice(1, StringRef::npos).getAsInteger(10, Version)) {
2699 if (Version > MaxVersion) {
2700 MaxVersion = Version;
2701 MaxVersionString = VersionText;
2705 return MaxVersion ? (base + "/" + MaxVersionString).str() : "";
2709 Generic_GCC::addLibCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
2710 llvm::opt::ArgStringList &CC1Args) const {
2711 const std::string& SysRoot = getDriver().SysRoot;
2712 auto AddIncludePath = [&](std::string Path) {
2713 std::string IncludePath = DetectLibcxxIncludePath(getVFS(), Path);
2714 if (IncludePath.empty() || !getVFS().exists(IncludePath))
2716 addSystemInclude(DriverArgs, CC1Args, IncludePath);
2719 // Android never uses the libc++ headers installed alongside the toolchain,
2720 // which are generally incompatible with the NDK libraries anyway.
2721 if (!getTriple().isAndroid())
2722 if (AddIncludePath(getDriver().Dir + "/../include/c++"))
2724 // If this is a development, non-installed, clang, libcxx will
2725 // not be found at ../include/c++ but it likely to be found at
2726 // one of the following two locations:
2727 if (AddIncludePath(SysRoot + "/usr/local/include/c++"))
2729 if (AddIncludePath(SysRoot + "/usr/include/c++"))
2733 /// Helper to add the variant paths of a libstdc++ installation.
2734 bool Generic_GCC::addLibStdCXXIncludePaths(
2735 Twine Base, Twine Suffix, StringRef GCCTriple, StringRef GCCMultiarchTriple,
2736 StringRef TargetMultiarchTriple, Twine IncludeSuffix,
2737 const ArgList &DriverArgs, ArgStringList &CC1Args) const {
2738 if (!getVFS().exists(Base + Suffix))
2741 addSystemInclude(DriverArgs, CC1Args, Base + Suffix);
2743 // The vanilla GCC layout of libstdc++ headers uses a triple subdirectory. If
2744 // that path exists or we have neither a GCC nor target multiarch triple, use
2745 // this vanilla search path.
2746 if ((GCCMultiarchTriple.empty() && TargetMultiarchTriple.empty()) ||
2747 getVFS().exists(Base + Suffix + "/" + GCCTriple + IncludeSuffix)) {
2748 addSystemInclude(DriverArgs, CC1Args,
2749 Base + Suffix + "/" + GCCTriple + IncludeSuffix);
2751 // Otherwise try to use multiarch naming schemes which have normalized the
2752 // triples and put the triple before the suffix.
2754 // GCC surprisingly uses *both* the GCC triple with a multilib suffix and
2755 // the target triple, so we support that here.
2756 addSystemInclude(DriverArgs, CC1Args,
2757 Base + "/" + GCCMultiarchTriple + Suffix + IncludeSuffix);
2758 addSystemInclude(DriverArgs, CC1Args,
2759 Base + "/" + TargetMultiarchTriple + Suffix);
2762 addSystemInclude(DriverArgs, CC1Args, Base + Suffix + "/backward");
2767 Generic_GCC::addGCCLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
2768 llvm::opt::ArgStringList &CC1Args) const {
2769 // Use GCCInstallation to know where libstdc++ headers are installed.
2770 if (!GCCInstallation.isValid())
2773 // By default, look for the C++ headers in an include directory adjacent to
2774 // the lib directory of the GCC installation. Note that this is expect to be
2775 // equivalent to '/usr/include/c++/X.Y' in almost all cases.
2776 StringRef LibDir = GCCInstallation.getParentLibPath();
2777 StringRef InstallDir = GCCInstallation.getInstallPath();
2778 StringRef TripleStr = GCCInstallation.getTriple().str();
2779 const Multilib &Multilib = GCCInstallation.getMultilib();
2780 const std::string GCCMultiarchTriple = getMultiarchTriple(
2781 getDriver(), GCCInstallation.getTriple(), getDriver().SysRoot);
2782 const std::string TargetMultiarchTriple =
2783 getMultiarchTriple(getDriver(), getTriple(), getDriver().SysRoot);
2784 const GCCVersion &Version = GCCInstallation.getVersion();
2786 // The primary search for libstdc++ supports multiarch variants.
2787 if (addLibStdCXXIncludePaths(LibDir.str() + "/../include",
2788 "/c++/" + Version.Text, TripleStr,
2789 GCCMultiarchTriple, TargetMultiarchTriple,
2790 Multilib.includeSuffix(), DriverArgs, CC1Args))
2793 // Otherwise, fall back on a bunch of options which don't use multiarch
2794 // layouts for simplicity.
2795 const std::string LibStdCXXIncludePathCandidates[] = {
2796 // Gentoo is weird and places its headers inside the GCC install,
2797 // so if the first attempt to find the headers fails, try these patterns.
2798 InstallDir.str() + "/include/g++-v" + Version.Text,
2799 InstallDir.str() + "/include/g++-v" + Version.MajorStr + "." +
2801 InstallDir.str() + "/include/g++-v" + Version.MajorStr,
2804 for (const auto &IncludePath : LibStdCXXIncludePathCandidates) {
2805 if (addLibStdCXXIncludePaths(IncludePath, /*Suffix*/ "", TripleStr,
2806 /*GCCMultiarchTriple*/ "",
2807 /*TargetMultiarchTriple*/ "",
2808 Multilib.includeSuffix(), DriverArgs, CC1Args))
2815 Generic_GCC::addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
2816 llvm::opt::ArgStringList &CC1Args) const {
2817 addGCCLibStdCxxIncludePaths(DriverArgs, CC1Args);
2820 llvm::opt::DerivedArgList *
2821 Generic_GCC::TranslateArgs(const llvm::opt::DerivedArgList &Args, StringRef,
2822 Action::OffloadKind DeviceOffloadKind) const {
2824 // If this tool chain is used for an OpenMP offloading device we have to make
2825 // sure we always generate a shared library regardless of the commands the
2826 // user passed to the host. This is required because the runtime library
2827 // is required to load the device image dynamically at run time.
2828 if (DeviceOffloadKind == Action::OFK_OpenMP) {
2829 DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs());
2830 const OptTable &Opts = getDriver().getOpts();
2832 // Request the shared library. Given that these options are decided
2833 // implicitly, they do not refer to any base argument.
2834 DAL->AddFlagArg(/*BaseArg=*/nullptr, Opts.getOption(options::OPT_shared));
2835 DAL->AddFlagArg(/*BaseArg=*/nullptr, Opts.getOption(options::OPT_fPIC));
2837 // Filter all the arguments we don't care passing to the offloading
2838 // toolchain as they can mess up with the creation of a shared library.
2839 for (auto *A : Args) {
2840 switch ((options::ID)A->getOption().getID()) {
2844 case options::OPT_shared:
2845 case options::OPT_dynamic:
2846 case options::OPT_static:
2847 case options::OPT_fPIC:
2848 case options::OPT_fno_PIC:
2849 case options::OPT_fpic:
2850 case options::OPT_fno_pic:
2851 case options::OPT_fPIE:
2852 case options::OPT_fno_PIE:
2853 case options::OPT_fpie:
2854 case options::OPT_fno_pie:
2863 void Generic_ELF::anchor() {}
2865 void Generic_ELF::addClangTargetOptions(const ArgList &DriverArgs,
2866 ArgStringList &CC1Args,
2867 Action::OffloadKind) const {
2868 if (!DriverArgs.hasFlag(options::OPT_fuse_init_array,
2869 options::OPT_fno_use_init_array, true))
2870 CC1Args.push_back("-fno-use-init-array");