1 //===--- Gnu.cpp - Gnu Tool and ToolChain Implementations -------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
13 #include "Arch/Mips.h"
14 #include "Arch/Sparc.h"
15 #include "Arch/SystemZ.h"
16 #include "CommonArgs.h"
17 #include "clang/Basic/VirtualFileSystem.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 "llvm/Option/ArgList.h"
25 #include "llvm/Support/CodeGen.h"
26 #include "llvm/Support/Path.h"
27 #include "llvm/Support/TargetParser.h"
28 #include <system_error>
30 using namespace clang::driver;
31 using namespace clang::driver::toolchains;
32 using namespace clang;
33 using namespace llvm::opt;
35 void tools::GnuTool::anchor() {}
37 static bool forwardToGCC(const Option &O) {
38 // Don't forward inputs from the original command line. They are added from
40 return O.getKind() != Option::InputClass &&
41 !O.hasFlag(options::DriverOption) && !O.hasFlag(options::LinkerInput);
44 void tools::gcc::Common::ConstructJob(Compilation &C, const JobAction &JA,
45 const InputInfo &Output,
46 const InputInfoList &Inputs,
48 const char *LinkingOutput) const {
49 const Driver &D = getToolChain().getDriver();
50 ArgStringList CmdArgs;
52 for (const auto &A : Args) {
53 if (forwardToGCC(A->getOption())) {
54 // It is unfortunate that we have to claim here, as this means
55 // we will basically never report anything interesting for
56 // platforms using a generic gcc, even if we are just using gcc
57 // to get to the assembler.
60 // Don't forward any -g arguments to assembly steps.
61 if (isa<AssembleJobAction>(JA) &&
62 A->getOption().matches(options::OPT_g_Group))
65 // Don't forward any -W arguments to assembly and link steps.
66 if ((isa<AssembleJobAction>(JA) || isa<LinkJobAction>(JA)) &&
67 A->getOption().matches(options::OPT_W_Group))
70 A->render(Args, CmdArgs);
74 RenderExtraToolArgs(JA, CmdArgs);
76 // If using a driver driver, force the arch.
77 if (getToolChain().getTriple().isOSDarwin()) {
78 CmdArgs.push_back("-arch");
80 Args.MakeArgString(getToolChain().getDefaultUniversalArchName()));
83 // Try to force gcc to match the tool chain we want, if we recognize
86 // FIXME: The triple class should directly provide the information we want
88 switch (getToolChain().getArch()) {
91 case llvm::Triple::x86:
92 case llvm::Triple::ppc:
93 CmdArgs.push_back("-m32");
95 case llvm::Triple::x86_64:
96 case llvm::Triple::ppc64:
97 case llvm::Triple::ppc64le:
98 CmdArgs.push_back("-m64");
100 case llvm::Triple::sparcel:
101 CmdArgs.push_back("-EL");
105 if (Output.isFilename()) {
106 CmdArgs.push_back("-o");
107 CmdArgs.push_back(Output.getFilename());
109 assert(Output.isNothing() && "Unexpected output");
110 CmdArgs.push_back("-fsyntax-only");
113 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
115 // Only pass -x if gcc will understand it; otherwise hope gcc
116 // understands the suffix correctly. The main use case this would go
117 // wrong in is for linker inputs if they happened to have an odd
118 // suffix; really the only way to get this to happen is a command
119 // like '-x foobar a.c' which will treat a.c like a linker input.
121 // FIXME: For the linker case specifically, can we safely convert
122 // inputs into '-Wl,' options?
123 for (const auto &II : Inputs) {
124 // Don't try to pass LLVM or AST inputs to a generic gcc.
125 if (types::isLLVMIR(II.getType()))
126 D.Diag(clang::diag::err_drv_no_linker_llvm_support)
127 << getToolChain().getTripleString();
128 else if (II.getType() == types::TY_AST)
129 D.Diag(diag::err_drv_no_ast_support) << getToolChain().getTripleString();
130 else if (II.getType() == types::TY_ModuleFile)
131 D.Diag(diag::err_drv_no_module_support)
132 << getToolChain().getTripleString();
134 if (types::canTypeBeUserSpecified(II.getType())) {
135 CmdArgs.push_back("-x");
136 CmdArgs.push_back(types::getTypeName(II.getType()));
140 CmdArgs.push_back(II.getFilename());
142 const Arg &A = II.getInputArg();
144 // Reverse translate some rewritten options.
145 if (A.getOption().matches(options::OPT_Z_reserved_lib_stdcxx)) {
146 CmdArgs.push_back("-lstdc++");
150 // Don't render as input, we need gcc to do the translations.
151 A.render(Args, CmdArgs);
155 const std::string &customGCCName = D.getCCCGenericGCCName();
157 if (!customGCCName.empty())
158 GCCName = customGCCName.c_str();
159 else if (D.CCCIsCXX()) {
164 const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath(GCCName));
165 C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
168 void tools::gcc::Preprocessor::RenderExtraToolArgs(
169 const JobAction &JA, ArgStringList &CmdArgs) const {
170 CmdArgs.push_back("-E");
173 void tools::gcc::Compiler::RenderExtraToolArgs(const JobAction &JA,
174 ArgStringList &CmdArgs) const {
175 const Driver &D = getToolChain().getDriver();
177 switch (JA.getType()) {
178 // If -flto, etc. are present then make sure not to force assembly output.
179 case types::TY_LLVM_IR:
180 case types::TY_LTO_IR:
181 case types::TY_LLVM_BC:
182 case types::TY_LTO_BC:
183 CmdArgs.push_back("-c");
185 // We assume we've got an "integrated" assembler in that gcc will produce an
186 // object file itself.
187 case types::TY_Object:
188 CmdArgs.push_back("-c");
190 case types::TY_PP_Asm:
191 CmdArgs.push_back("-S");
193 case types::TY_Nothing:
194 CmdArgs.push_back("-fsyntax-only");
197 D.Diag(diag::err_drv_invalid_gcc_output_type) << getTypeName(JA.getType());
201 void tools::gcc::Linker::RenderExtraToolArgs(const JobAction &JA,
202 ArgStringList &CmdArgs) const {
203 // The types are (hopefully) good enough.
206 /// Add OpenMP linker script arguments at the end of the argument list so that
207 /// the fat binary is built by embedding each of the device images into the
208 /// host. The linker script also defines a few symbols required by the code
209 /// generation so that the images can be easily retrieved at runtime by the
210 /// offloading library. This should be used only in tool chains that support
212 static void AddOpenMPLinkerScript(const ToolChain &TC, Compilation &C,
213 const InputInfo &Output,
214 const InputInfoList &Inputs,
215 const ArgList &Args, ArgStringList &CmdArgs,
216 const JobAction &JA) {
218 // If this is not an OpenMP host toolchain, we don't need to do anything.
219 if (!JA.isHostOffloading(Action::OFK_OpenMP))
222 // Create temporary linker script. Keep it if save-temps is enabled.
224 SmallString<256> Name = llvm::sys::path::filename(Output.getFilename());
225 if (C.getDriver().isSaveTempsEnabled()) {
226 llvm::sys::path::replace_extension(Name, "lk");
227 LKS = C.getArgs().MakeArgString(Name.c_str());
229 llvm::sys::path::replace_extension(Name, "");
230 Name = C.getDriver().GetTemporaryPath(Name, "lk");
231 LKS = C.addTempFile(C.getArgs().MakeArgString(Name.c_str()));
234 // Add linker script option to the command.
235 CmdArgs.push_back("-T");
236 CmdArgs.push_back(LKS);
238 // Create a buffer to write the contents of the linker script.
239 std::string LksBuffer;
240 llvm::raw_string_ostream LksStream(LksBuffer);
242 // Get the OpenMP offload tool chains so that we can extract the triple
243 // associated with each device input.
244 auto OpenMPToolChains = C.getOffloadToolChains<Action::OFK_OpenMP>();
245 assert(OpenMPToolChains.first != OpenMPToolChains.second &&
246 "No OpenMP toolchains??");
248 // Track the input file name and device triple in order to build the script,
249 // inserting binaries in the designated sections.
250 SmallVector<std::pair<std::string, const char *>, 8> InputBinaryInfo;
252 // Add commands to embed target binaries. We ensure that each section and
253 // image is 16-byte aligned. This is not mandatory, but increases the
254 // likelihood of data to be aligned with a cache block in several main host
257 LksStream << " OpenMP Offload Linker Script\n";
258 LksStream << " *** Automatically generated by Clang ***\n";
260 LksStream << "TARGET(binary)\n";
261 auto DTC = OpenMPToolChains.first;
262 for (auto &II : Inputs) {
263 const Action *A = II.getAction();
264 // Is this a device linking action?
265 if (A && isa<LinkJobAction>(A) &&
266 A->isDeviceOffloading(Action::OFK_OpenMP)) {
267 assert(DTC != OpenMPToolChains.second &&
268 "More device inputs than device toolchains??");
269 InputBinaryInfo.push_back(std::make_pair(
270 DTC->second->getTriple().normalize(), II.getFilename()));
272 LksStream << "INPUT(" << II.getFilename() << ")\n";
276 assert(DTC == OpenMPToolChains.second &&
277 "Less device inputs than device toolchains??");
279 LksStream << "SECTIONS\n";
282 // Put each target binary into a separate section.
283 for (const auto &BI : InputBinaryInfo) {
284 LksStream << " .omp_offloading." << BI.first << " :\n";
285 LksStream << " ALIGN(0x10)\n";
287 LksStream << " PROVIDE_HIDDEN(.omp_offloading.img_start." << BI.first
289 LksStream << " " << BI.second << "\n";
290 LksStream << " PROVIDE_HIDDEN(.omp_offloading.img_end." << BI.first
295 // Add commands to define host entries begin and end. We use 1-byte subalign
296 // so that the linker does not add any padding and the elements in this
297 // section form an array.
298 LksStream << " .omp_offloading.entries :\n";
299 LksStream << " ALIGN(0x10)\n";
300 LksStream << " SUBALIGN(0x01)\n";
302 LksStream << " PROVIDE_HIDDEN(.omp_offloading.entries_begin = .);\n";
303 LksStream << " *(.omp_offloading.entries)\n";
304 LksStream << " PROVIDE_HIDDEN(.omp_offloading.entries_end = .);\n";
307 LksStream << "INSERT BEFORE .data\n";
310 // Dump the contents of the linker script if the user requested that. We
311 // support this option to enable testing of behavior with -###.
312 if (C.getArgs().hasArg(options::OPT_fopenmp_dump_offload_linker_script))
313 llvm::errs() << LksBuffer;
315 // If this is a dry run, do not create the linker script file.
316 if (C.getArgs().hasArg(options::OPT__HASH_HASH_HASH))
319 // Open script file and write the contents.
321 llvm::raw_fd_ostream Lksf(LKS, EC, llvm::sys::fs::F_None);
324 C.getDriver().Diag(clang::diag::err_unable_to_make_temp) << EC.message();
331 static bool addXRayRuntime(const ToolChain &TC, const ArgList &Args,
332 ArgStringList &CmdArgs) {
333 if (Args.hasFlag(options::OPT_fxray_instrument,
334 options::OPT_fnoxray_instrument, false)) {
335 CmdArgs.push_back("-whole-archive");
336 CmdArgs.push_back(TC.getCompilerRTArgString(Args, "xray", false));
337 CmdArgs.push_back("-no-whole-archive");
343 static void linkXRayRuntimeDeps(const ToolChain &TC, const ArgList &Args,
344 ArgStringList &CmdArgs) {
345 CmdArgs.push_back("--no-as-needed");
346 CmdArgs.push_back("-lpthread");
347 CmdArgs.push_back("-lrt");
348 CmdArgs.push_back("-lm");
350 if (TC.getTriple().getOS() != llvm::Triple::FreeBSD)
351 CmdArgs.push_back("-ldl");
354 static const char *getLDMOption(const llvm::Triple &T, const ArgList &Args) {
355 switch (T.getArch()) {
356 case llvm::Triple::x86:
360 case llvm::Triple::aarch64:
361 return "aarch64linux";
362 case llvm::Triple::aarch64_be:
363 return "aarch64_be_linux";
364 case llvm::Triple::arm:
365 case llvm::Triple::thumb:
366 return "armelf_linux_eabi";
367 case llvm::Triple::armeb:
368 case llvm::Triple::thumbeb:
369 return "armelfb_linux_eabi";
370 case llvm::Triple::ppc:
371 return "elf32ppclinux";
372 case llvm::Triple::ppc64:
374 case llvm::Triple::ppc64le:
376 case llvm::Triple::sparc:
377 case llvm::Triple::sparcel:
378 return "elf32_sparc";
379 case llvm::Triple::sparcv9:
380 return "elf64_sparc";
381 case llvm::Triple::mips:
382 return "elf32btsmip";
383 case llvm::Triple::mipsel:
384 return "elf32ltsmip";
385 case llvm::Triple::mips64:
386 if (tools::mips::hasMipsAbiArg(Args, "n32"))
387 return "elf32btsmipn32";
388 return "elf64btsmip";
389 case llvm::Triple::mips64el:
390 if (tools::mips::hasMipsAbiArg(Args, "n32"))
391 return "elf32ltsmipn32";
392 return "elf64ltsmip";
393 case llvm::Triple::systemz:
395 case llvm::Triple::x86_64:
396 if (T.getEnvironment() == llvm::Triple::GNUX32)
397 return "elf32_x86_64";
404 void tools::gnutools::Linker::ConstructJob(Compilation &C, const JobAction &JA,
405 const InputInfo &Output,
406 const InputInfoList &Inputs,
408 const char *LinkingOutput) const {
409 const toolchains::Linux &ToolChain =
410 static_cast<const toolchains::Linux &>(getToolChain());
411 const Driver &D = ToolChain.getDriver();
413 const llvm::Triple &Triple = getToolChain().getEffectiveTriple();
415 const llvm::Triple::ArchType Arch = ToolChain.getArch();
416 const bool isAndroid = ToolChain.getTriple().isAndroid();
417 const bool IsIAMCU = ToolChain.getTriple().isOSIAMCU();
419 !Args.hasArg(options::OPT_shared) && !Args.hasArg(options::OPT_static) &&
420 (Args.hasArg(options::OPT_pie) || ToolChain.isPIEDefault());
421 const bool HasCRTBeginEndFiles =
422 ToolChain.getTriple().hasEnvironment() ||
423 (ToolChain.getTriple().getVendor() != llvm::Triple::MipsTechnologies);
425 ArgStringList CmdArgs;
427 // Silence warning for "clang -g foo.o -o foo"
428 Args.ClaimAllArgs(options::OPT_g_Group);
429 // and "clang -emit-llvm foo.o -o foo"
430 Args.ClaimAllArgs(options::OPT_emit_llvm);
431 // and for "clang -w foo.o -o foo". Other warning options are already
432 // handled somewhere else.
433 Args.ClaimAllArgs(options::OPT_w);
435 const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath());
436 if (llvm::sys::path::stem(Exec) == "lld") {
437 CmdArgs.push_back("-flavor");
438 CmdArgs.push_back("old-gnu");
439 CmdArgs.push_back("-target");
440 CmdArgs.push_back(Args.MakeArgString(getToolChain().getTripleString()));
443 if (!D.SysRoot.empty())
444 CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot));
447 CmdArgs.push_back("-pie");
449 if (Args.hasArg(options::OPT_rdynamic))
450 CmdArgs.push_back("-export-dynamic");
452 if (Args.hasArg(options::OPT_s))
453 CmdArgs.push_back("-s");
455 if (Arch == llvm::Triple::armeb || Arch == llvm::Triple::thumbeb)
456 arm::appendEBLinkFlags(Args, CmdArgs, Triple);
458 // Most Android ARM64 targets should enable the linker fix for erratum
459 // 843419. Only non-Cortex-A53 devices are allowed to skip this flag.
460 if (Arch == llvm::Triple::aarch64 && isAndroid) {
461 std::string CPU = getCPUName(Args, Triple);
462 if (CPU.empty() || CPU == "generic" || CPU == "cortex-a53")
463 CmdArgs.push_back("--fix-cortex-a53-843419");
466 for (const auto &Opt : ToolChain.ExtraOpts)
467 CmdArgs.push_back(Opt.c_str());
469 if (!Args.hasArg(options::OPT_static)) {
470 CmdArgs.push_back("--eh-frame-hdr");
473 if (const char *LDMOption = getLDMOption(ToolChain.getTriple(), Args)) {
474 CmdArgs.push_back("-m");
475 CmdArgs.push_back(LDMOption);
477 D.Diag(diag::err_target_unknown_triple) << Triple.str();
481 if (Args.hasArg(options::OPT_static)) {
482 if (Arch == llvm::Triple::arm || Arch == llvm::Triple::armeb ||
483 Arch == llvm::Triple::thumb || Arch == llvm::Triple::thumbeb)
484 CmdArgs.push_back("-Bstatic");
486 CmdArgs.push_back("-static");
487 } else if (Args.hasArg(options::OPT_shared)) {
488 CmdArgs.push_back("-shared");
491 if (!Args.hasArg(options::OPT_static)) {
492 if (Args.hasArg(options::OPT_rdynamic))
493 CmdArgs.push_back("-export-dynamic");
495 if (!Args.hasArg(options::OPT_shared)) {
496 const std::string Loader =
497 D.DyldPrefix + ToolChain.getDynamicLinker(Args);
498 CmdArgs.push_back("-dynamic-linker");
499 CmdArgs.push_back(Args.MakeArgString(Loader));
503 CmdArgs.push_back("-o");
504 CmdArgs.push_back(Output.getFilename());
506 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
507 if (!isAndroid && !IsIAMCU) {
508 const char *crt1 = nullptr;
509 if (!Args.hasArg(options::OPT_shared)) {
510 if (Args.hasArg(options::OPT_pg))
518 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crt1)));
520 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o")));
524 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt0.o")));
526 const char *crtbegin;
527 if (Args.hasArg(options::OPT_static))
528 crtbegin = isAndroid ? "crtbegin_static.o" : "crtbeginT.o";
529 else if (Args.hasArg(options::OPT_shared))
530 crtbegin = isAndroid ? "crtbegin_so.o" : "crtbeginS.o";
532 crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbeginS.o";
534 crtbegin = isAndroid ? "crtbegin_dynamic.o" : "crtbegin.o";
536 if (HasCRTBeginEndFiles)
537 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crtbegin)));
540 // Add crtfastmath.o if available and fast math is enabled.
541 ToolChain.AddFastMathRuntimeIfAvailable(Args, CmdArgs);
544 Args.AddAllArgs(CmdArgs, options::OPT_L);
545 Args.AddAllArgs(CmdArgs, options::OPT_u);
547 ToolChain.AddFilePathLibArgs(Args, CmdArgs);
550 AddGoldPlugin(ToolChain, Args, CmdArgs, D.getLTOMode() == LTOK_Thin, D);
552 if (Args.hasArg(options::OPT_Z_Xlinker__no_demangle))
553 CmdArgs.push_back("--no-demangle");
555 bool NeedsSanitizerDeps = addSanitizerRuntimes(ToolChain, Args, CmdArgs);
556 bool NeedsXRayDeps = addXRayRuntime(ToolChain, Args, CmdArgs);
557 AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA);
558 // The profile runtime also needs access to system libraries.
559 getToolChain().addProfileRTLibs(Args, CmdArgs);
562 !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
563 bool OnlyLibstdcxxStatic = Args.hasArg(options::OPT_static_libstdcxx) &&
564 !Args.hasArg(options::OPT_static);
565 if (OnlyLibstdcxxStatic)
566 CmdArgs.push_back("-Bstatic");
567 ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs);
568 if (OnlyLibstdcxxStatic)
569 CmdArgs.push_back("-Bdynamic");
570 CmdArgs.push_back("-lm");
572 // Silence warnings when linking C code with a C++ '-stdlib' argument.
573 Args.ClaimAllArgs(options::OPT_stdlib_EQ);
575 if (!Args.hasArg(options::OPT_nostdlib)) {
576 if (!Args.hasArg(options::OPT_nodefaultlibs)) {
577 if (Args.hasArg(options::OPT_static))
578 CmdArgs.push_back("--start-group");
580 if (NeedsSanitizerDeps)
581 linkSanitizerRuntimeDeps(ToolChain, CmdArgs);
584 linkXRayRuntimeDeps(ToolChain, Args, CmdArgs);
586 bool WantPthread = Args.hasArg(options::OPT_pthread) ||
587 Args.hasArg(options::OPT_pthreads);
589 // FIXME: Only pass GompNeedsRT = true for platforms with libgomp that
590 // require librt. Most modern Linux platforms do, but some may not.
591 if (addOpenMPRuntime(CmdArgs, ToolChain, Args,
592 JA.isHostOffloading(Action::OFK_OpenMP),
593 /* GompNeedsRT= */ true))
594 // OpenMP runtimes implies pthreads when using the GNU toolchain.
595 // FIXME: Does this really make sense for all GNU toolchains?
598 AddRunTimeLibs(ToolChain, D, CmdArgs, Args);
600 if (WantPthread && !isAndroid)
601 CmdArgs.push_back("-lpthread");
603 if (Args.hasArg(options::OPT_fsplit_stack))
604 CmdArgs.push_back("--wrap=pthread_create");
606 CmdArgs.push_back("-lc");
608 // Add IAMCU specific libs, if needed.
610 CmdArgs.push_back("-lgloss");
612 if (Args.hasArg(options::OPT_static))
613 CmdArgs.push_back("--end-group");
615 AddRunTimeLibs(ToolChain, D, CmdArgs, Args);
617 // Add IAMCU specific libs (outside the group), if needed.
619 CmdArgs.push_back("--as-needed");
620 CmdArgs.push_back("-lsoftfp");
621 CmdArgs.push_back("--no-as-needed");
625 if (!Args.hasArg(options::OPT_nostartfiles) && !IsIAMCU) {
627 if (Args.hasArg(options::OPT_shared))
628 crtend = isAndroid ? "crtend_so.o" : "crtendS.o";
630 crtend = isAndroid ? "crtend_android.o" : "crtendS.o";
632 crtend = isAndroid ? "crtend_android.o" : "crtend.o";
634 if (HasCRTBeginEndFiles)
635 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath(crtend)));
637 CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o")));
641 // Add OpenMP offloading linker script args if required.
642 AddOpenMPLinkerScript(getToolChain(), C, Output, Inputs, Args, CmdArgs, JA);
644 C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
647 void tools::gnutools::Assembler::ConstructJob(Compilation &C,
649 const InputInfo &Output,
650 const InputInfoList &Inputs,
652 const char *LinkingOutput) const {
653 claimNoWarnArgs(Args);
655 ArgStringList CmdArgs;
657 llvm::Reloc::Model RelocationModel;
660 std::tie(RelocationModel, PICLevel, IsPIE) =
661 ParsePICArgs(getToolChain(), Args);
663 switch (getToolChain().getArch()) {
666 // Add --32/--64 to make sure we get the format we want.
667 // This is incomplete
668 case llvm::Triple::x86:
669 CmdArgs.push_back("--32");
671 case llvm::Triple::x86_64:
672 if (getToolChain().getTriple().getEnvironment() == llvm::Triple::GNUX32)
673 CmdArgs.push_back("--x32");
675 CmdArgs.push_back("--64");
677 case llvm::Triple::ppc:
678 CmdArgs.push_back("-a32");
679 CmdArgs.push_back("-mppc");
680 CmdArgs.push_back("-many");
682 case llvm::Triple::ppc64:
683 CmdArgs.push_back("-a64");
684 CmdArgs.push_back("-mppc64");
685 CmdArgs.push_back("-many");
687 case llvm::Triple::ppc64le:
688 CmdArgs.push_back("-a64");
689 CmdArgs.push_back("-mppc64");
690 CmdArgs.push_back("-many");
691 CmdArgs.push_back("-mlittle-endian");
693 case llvm::Triple::sparc:
694 case llvm::Triple::sparcel: {
695 CmdArgs.push_back("-32");
696 std::string CPU = getCPUName(Args, getToolChain().getTriple());
697 CmdArgs.push_back(sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple()));
698 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
701 case llvm::Triple::sparcv9: {
702 CmdArgs.push_back("-64");
703 std::string CPU = getCPUName(Args, getToolChain().getTriple());
704 CmdArgs.push_back(sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple()));
705 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
708 case llvm::Triple::arm:
709 case llvm::Triple::armeb:
710 case llvm::Triple::thumb:
711 case llvm::Triple::thumbeb: {
712 const llvm::Triple &Triple2 = getToolChain().getTriple();
713 switch (Triple2.getSubArch()) {
714 case llvm::Triple::ARMSubArch_v7:
715 CmdArgs.push_back("-mfpu=neon");
717 case llvm::Triple::ARMSubArch_v8:
718 CmdArgs.push_back("-mfpu=crypto-neon-fp-armv8");
724 switch (arm::getARMFloatABI(getToolChain(), Args)) {
725 case arm::FloatABI::Invalid: llvm_unreachable("must have an ABI!");
726 case arm::FloatABI::Soft:
727 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=soft"));
729 case arm::FloatABI::SoftFP:
730 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=softfp"));
732 case arm::FloatABI::Hard:
733 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=hard"));
737 Args.AddLastArg(CmdArgs, options::OPT_march_EQ);
739 // FIXME: remove krait check when GNU tools support krait cpu
740 // for now replace it with -mcpu=cortex-a15 to avoid a lower
741 // march from being picked in the absence of a cpu flag.
743 if ((A = Args.getLastArg(options::OPT_mcpu_EQ)) &&
744 StringRef(A->getValue()).equals_lower("krait"))
745 CmdArgs.push_back("-mcpu=cortex-a15");
747 Args.AddLastArg(CmdArgs, options::OPT_mcpu_EQ);
748 Args.AddLastArg(CmdArgs, options::OPT_mfpu_EQ);
751 case llvm::Triple::aarch64:
752 case llvm::Triple::aarch64_be: {
753 Args.AddLastArg(CmdArgs, options::OPT_march_EQ);
754 Args.AddLastArg(CmdArgs, options::OPT_mcpu_EQ);
757 case llvm::Triple::mips:
758 case llvm::Triple::mipsel:
759 case llvm::Triple::mips64:
760 case llvm::Triple::mips64el: {
763 mips::getMipsCPUAndABI(Args, getToolChain().getTriple(), CPUName, ABIName);
764 ABIName = mips::getGnuCompatibleMipsABIName(ABIName);
766 CmdArgs.push_back("-march");
767 CmdArgs.push_back(CPUName.data());
769 CmdArgs.push_back("-mabi");
770 CmdArgs.push_back(ABIName.data());
772 // -mno-shared should be emitted unless -fpic, -fpie, -fPIC, -fPIE,
773 // or -mshared (not implemented) is in effect.
774 if (RelocationModel == llvm::Reloc::Static)
775 CmdArgs.push_back("-mno-shared");
777 // LLVM doesn't support -mplt yet and acts as if it is always given.
778 // However, -mplt has no effect with the N64 ABI.
779 if (ABIName != "64" && !Args.hasArg(options::OPT_mno_abicalls))
780 CmdArgs.push_back("-call_nonpic");
782 if (getToolChain().getArch() == llvm::Triple::mips ||
783 getToolChain().getArch() == llvm::Triple::mips64)
784 CmdArgs.push_back("-EB");
786 CmdArgs.push_back("-EL");
788 if (Arg *A = Args.getLastArg(options::OPT_mnan_EQ)) {
789 if (StringRef(A->getValue()) == "2008")
790 CmdArgs.push_back(Args.MakeArgString("-mnan=2008"));
793 // Add the last -mfp32/-mfpxx/-mfp64 or -mfpxx if it is enabled by default.
794 if (Arg *A = Args.getLastArg(options::OPT_mfp32, options::OPT_mfpxx,
795 options::OPT_mfp64)) {
797 A->render(Args, CmdArgs);
798 } else if (mips::shouldUseFPXX(
799 Args, getToolChain().getTriple(), CPUName, ABIName,
800 mips::getMipsFloatABI(getToolChain().getDriver(), Args)))
801 CmdArgs.push_back("-mfpxx");
803 // Pass on -mmips16 or -mno-mips16. However, the assembler equivalent of
804 // -mno-mips16 is actually -no-mips16.
806 Args.getLastArg(options::OPT_mips16, options::OPT_mno_mips16)) {
807 if (A->getOption().matches(options::OPT_mips16)) {
809 A->render(Args, CmdArgs);
812 CmdArgs.push_back("-no-mips16");
816 Args.AddLastArg(CmdArgs, options::OPT_mmicromips,
817 options::OPT_mno_micromips);
818 Args.AddLastArg(CmdArgs, options::OPT_mdsp, options::OPT_mno_dsp);
819 Args.AddLastArg(CmdArgs, options::OPT_mdspr2, options::OPT_mno_dspr2);
821 if (Arg *A = Args.getLastArg(options::OPT_mmsa, options::OPT_mno_msa)) {
822 // Do not use AddLastArg because not all versions of MIPS assembler
823 // support -mmsa / -mno-msa options.
824 if (A->getOption().matches(options::OPT_mmsa))
825 CmdArgs.push_back(Args.MakeArgString("-mmsa"));
828 Args.AddLastArg(CmdArgs, options::OPT_mhard_float,
829 options::OPT_msoft_float);
831 Args.AddLastArg(CmdArgs, options::OPT_mdouble_float,
832 options::OPT_msingle_float);
834 Args.AddLastArg(CmdArgs, options::OPT_modd_spreg,
835 options::OPT_mno_odd_spreg);
837 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
840 case llvm::Triple::systemz: {
841 // Always pass an -march option, since our default of z10 is later
842 // than the GNU assembler's default.
843 StringRef CPUName = systemz::getSystemZTargetCPU(Args);
844 CmdArgs.push_back(Args.MakeArgString("-march=" + CPUName));
849 Args.AddAllArgs(CmdArgs, options::OPT_I);
850 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
852 CmdArgs.push_back("-o");
853 CmdArgs.push_back(Output.getFilename());
855 for (const auto &II : Inputs)
856 CmdArgs.push_back(II.getFilename());
858 const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as"));
859 C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
861 // Handle the debug info splitting at object creation time if we're
862 // creating an object.
863 // TODO: Currently only works on linux with newer objcopy.
864 if (Args.hasArg(options::OPT_gsplit_dwarf) &&
865 getToolChain().getTriple().isOSLinux())
866 SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output,
867 SplitDebugName(Args, Inputs[0]));
871 // Filter to remove Multilibs that don't exist as a suffix to Path
872 class FilterNonExistent {
873 StringRef Base, File;
874 vfs::FileSystem &VFS;
877 FilterNonExistent(StringRef Base, StringRef File, vfs::FileSystem &VFS)
878 : Base(Base), File(File), VFS(VFS) {}
879 bool operator()(const Multilib &M) {
880 return !VFS.exists(Base + M.gccSuffix() + File);
883 } // end anonymous namespace
885 static bool isSoftFloatABI(const ArgList &Args) {
886 Arg *A = Args.getLastArg(options::OPT_msoft_float, options::OPT_mhard_float,
887 options::OPT_mfloat_abi_EQ);
891 return A->getOption().matches(options::OPT_msoft_float) ||
892 (A->getOption().matches(options::OPT_mfloat_abi_EQ) &&
893 A->getValue() == StringRef("soft"));
896 /// \p Flag must be a flag accepted by the driver with its leading '-' removed,
897 // otherwise '-print-multi-lib' will not emit them correctly.
898 static void addMultilibFlag(bool Enabled, const char *const Flag,
899 std::vector<std::string> &Flags) {
901 Flags.push_back(std::string("+") + Flag);
903 Flags.push_back(std::string("-") + Flag);
906 static bool isArmOrThumbArch(llvm::Triple::ArchType Arch) {
907 return Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb;
910 static bool isMips32(llvm::Triple::ArchType Arch) {
911 return Arch == llvm::Triple::mips || Arch == llvm::Triple::mipsel;
914 static bool isMips64(llvm::Triple::ArchType Arch) {
915 return Arch == llvm::Triple::mips64 || Arch == llvm::Triple::mips64el;
918 static bool isMipsEL(llvm::Triple::ArchType Arch) {
919 return Arch == llvm::Triple::mipsel || Arch == llvm::Triple::mips64el;
922 static bool isMips16(const ArgList &Args) {
923 Arg *A = Args.getLastArg(options::OPT_mips16, options::OPT_mno_mips16);
924 return A && A->getOption().matches(options::OPT_mips16);
927 static bool isMicroMips(const ArgList &Args) {
928 Arg *A = Args.getLastArg(options::OPT_mmicromips, options::OPT_mno_micromips);
929 return A && A->getOption().matches(options::OPT_mmicromips);
932 static Multilib makeMultilib(StringRef commonSuffix) {
933 return Multilib(commonSuffix, commonSuffix, commonSuffix);
936 static bool findMipsCsMultilibs(const Multilib::flags_list &Flags,
937 FilterNonExistent &NonExistent,
938 DetectedMultilibs &Result) {
939 // Check for Code Sourcery toolchain multilibs
940 MultilibSet CSMipsMultilibs;
942 auto MArchMips16 = makeMultilib("/mips16").flag("+m32").flag("+mips16");
944 auto MArchMicroMips =
945 makeMultilib("/micromips").flag("+m32").flag("+mmicromips");
947 auto MArchDefault = makeMultilib("").flag("-mips16").flag("-mmicromips");
949 auto UCLibc = makeMultilib("/uclibc").flag("+muclibc");
951 auto SoftFloat = makeMultilib("/soft-float").flag("+msoft-float");
953 auto Nan2008 = makeMultilib("/nan2008").flag("+mnan=2008");
956 makeMultilib("").flag("-msoft-float").flag("-mnan=2008");
958 auto BigEndian = makeMultilib("").flag("+EB").flag("-EL");
960 auto LittleEndian = makeMultilib("/el").flag("+EL").flag("-EB");
962 // Note that this one's osSuffix is ""
963 auto MAbi64 = makeMultilib("")
965 .includeSuffix("/64")
972 .Either(MArchMips16, MArchMicroMips, MArchDefault)
974 .Either(SoftFloat, Nan2008, DefaultFloat)
975 .FilterOut("/micromips/nan2008")
976 .FilterOut("/mips16/nan2008")
977 .Either(BigEndian, LittleEndian)
979 .FilterOut("/mips16.*/64")
980 .FilterOut("/micromips.*/64")
981 .FilterOut(NonExistent)
982 .setIncludeDirsCallback([](const Multilib &M) {
983 std::vector<std::string> Dirs({"/include"});
984 if (StringRef(M.includeSuffix()).startswith("/uclibc"))
986 "/../../../../mips-linux-gnu/libc/uclibc/usr/include");
988 Dirs.push_back("/../../../../mips-linux-gnu/libc/usr/include");
993 MultilibSet DebianMipsMultilibs;
996 Multilib().gccSuffix("/n32").includeSuffix("/n32").flag("+mabi=n32");
998 Multilib M64 = Multilib()
1000 .includeSuffix("/64")
1005 Multilib M32 = Multilib().flag("-m64").flag("+m32").flag("-mabi=n32");
1007 DebianMipsMultilibs =
1008 MultilibSet().Either(M32, M64, MAbiN32).FilterOut(NonExistent);
1011 // Sort candidates. Toolchain that best meets the directories tree goes first.
1012 // Then select the first toolchains matches command line flags.
1013 MultilibSet *Candidates[] = {&CSMipsMultilibs, &DebianMipsMultilibs};
1014 if (CSMipsMultilibs.size() < DebianMipsMultilibs.size())
1015 std::iter_swap(Candidates, Candidates + 1);
1016 for (const MultilibSet *Candidate : Candidates) {
1017 if (Candidate->select(Flags, Result.SelectedMultilib)) {
1018 if (Candidate == &DebianMipsMultilibs)
1019 Result.BiarchSibling = Multilib();
1020 Result.Multilibs = *Candidate;
1027 static bool findMipsAndroidMultilibs(vfs::FileSystem &VFS, StringRef Path,
1028 const Multilib::flags_list &Flags,
1029 FilterNonExistent &NonExistent,
1030 DetectedMultilibs &Result) {
1032 MultilibSet AndroidMipsMultilibs =
1034 .Maybe(Multilib("/mips-r2").flag("+march=mips32r2"))
1035 .Maybe(Multilib("/mips-r6").flag("+march=mips32r6"))
1036 .FilterOut(NonExistent);
1038 MultilibSet AndroidMipselMultilibs =
1040 .Either(Multilib().flag("+march=mips32"),
1041 Multilib("/mips-r2", "", "/mips-r2").flag("+march=mips32r2"),
1042 Multilib("/mips-r6", "", "/mips-r6").flag("+march=mips32r6"))
1043 .FilterOut(NonExistent);
1045 MultilibSet AndroidMips64elMultilibs =
1048 Multilib().flag("+march=mips64r6"),
1049 Multilib("/32/mips-r1", "", "/mips-r1").flag("+march=mips32"),
1050 Multilib("/32/mips-r2", "", "/mips-r2").flag("+march=mips32r2"),
1051 Multilib("/32/mips-r6", "", "/mips-r6").flag("+march=mips32r6"))
1052 .FilterOut(NonExistent);
1054 MultilibSet *MS = &AndroidMipsMultilibs;
1055 if (VFS.exists(Path + "/mips-r6"))
1056 MS = &AndroidMipselMultilibs;
1057 else if (VFS.exists(Path + "/32"))
1058 MS = &AndroidMips64elMultilibs;
1059 if (MS->select(Flags, Result.SelectedMultilib)) {
1060 Result.Multilibs = *MS;
1066 static bool findMipsMuslMultilibs(const Multilib::flags_list &Flags,
1067 FilterNonExistent &NonExistent,
1068 DetectedMultilibs &Result) {
1069 // Musl toolchain multilibs
1070 MultilibSet MuslMipsMultilibs;
1072 auto MArchMipsR2 = makeMultilib("")
1073 .osSuffix("/mips-r2-hard-musl")
1076 .flag("+march=mips32r2");
1078 auto MArchMipselR2 = makeMultilib("/mipsel-r2-hard-musl")
1081 .flag("+march=mips32r2");
1083 MuslMipsMultilibs = MultilibSet().Either(MArchMipsR2, MArchMipselR2);
1085 // Specify the callback that computes the include directories.
1086 MuslMipsMultilibs.setIncludeDirsCallback([](const Multilib &M) {
1087 return std::vector<std::string>(
1088 {"/../sysroot" + M.osSuffix() + "/usr/include"});
1091 if (MuslMipsMultilibs.select(Flags, Result.SelectedMultilib)) {
1092 Result.Multilibs = MuslMipsMultilibs;
1098 static bool findMipsMtiMultilibs(const Multilib::flags_list &Flags,
1099 FilterNonExistent &NonExistent,
1100 DetectedMultilibs &Result) {
1101 // CodeScape MTI toolchain v1.2 and early.
1102 MultilibSet MtiMipsMultilibsV1;
1104 auto MArchMips32 = makeMultilib("/mips32")
1107 .flag("-mmicromips")
1108 .flag("+march=mips32");
1110 auto MArchMicroMips = makeMultilib("/micromips")
1113 .flag("+mmicromips");
1115 auto MArchMips64r2 = makeMultilib("/mips64r2")
1118 .flag("+march=mips64r2");
1120 auto MArchMips64 = makeMultilib("/mips64").flag("-m32").flag("+m64").flag(
1123 auto MArchDefault = makeMultilib("")
1126 .flag("-mmicromips")
1127 .flag("+march=mips32r2");
1129 auto Mips16 = makeMultilib("/mips16").flag("+mips16");
1131 auto UCLibc = makeMultilib("/uclibc").flag("+muclibc");
1134 makeMultilib("/64").flag("+mabi=n64").flag("-mabi=n32").flag("-m32");
1136 auto BigEndian = makeMultilib("").flag("+EB").flag("-EL");
1138 auto LittleEndian = makeMultilib("/el").flag("+EL").flag("-EB");
1140 auto SoftFloat = makeMultilib("/sof").flag("+msoft-float");
1142 auto Nan2008 = makeMultilib("/nan2008").flag("+mnan=2008");
1144 MtiMipsMultilibsV1 =
1146 .Either(MArchMips32, MArchMicroMips, MArchMips64r2, MArchMips64,
1150 .FilterOut("/mips64/mips16")
1151 .FilterOut("/mips64r2/mips16")
1152 .FilterOut("/micromips/mips16")
1154 .FilterOut("/micromips/64")
1155 .FilterOut("/mips32/64")
1157 .FilterOut("/mips16/64")
1158 .Either(BigEndian, LittleEndian)
1161 .FilterOut(".*sof/nan2008")
1162 .FilterOut(NonExistent)
1163 .setIncludeDirsCallback([](const Multilib &M) {
1164 std::vector<std::string> Dirs({"/include"});
1165 if (StringRef(M.includeSuffix()).startswith("/uclibc"))
1166 Dirs.push_back("/../../../../sysroot/uclibc/usr/include");
1168 Dirs.push_back("/../../../../sysroot/usr/include");
1173 // CodeScape IMG toolchain starting from v1.3.
1174 MultilibSet MtiMipsMultilibsV2;
1176 auto BeHard = makeMultilib("/mips-r2-hard")
1178 .flag("-msoft-float")
1181 auto BeSoft = makeMultilib("/mips-r2-soft")
1183 .flag("+msoft-float")
1184 .flag("-mnan=2008");
1185 auto ElHard = makeMultilib("/mipsel-r2-hard")
1187 .flag("-msoft-float")
1190 auto ElSoft = makeMultilib("/mipsel-r2-soft")
1192 .flag("+msoft-float")
1194 .flag("-mmicromips");
1195 auto BeHardNan = makeMultilib("/mips-r2-hard-nan2008")
1197 .flag("-msoft-float")
1200 auto ElHardNan = makeMultilib("/mipsel-r2-hard-nan2008")
1202 .flag("-msoft-float")
1205 .flag("-mmicromips");
1206 auto BeHardNanUclibc = makeMultilib("/mips-r2-hard-nan2008-uclibc")
1208 .flag("-msoft-float")
1211 auto ElHardNanUclibc = makeMultilib("/mipsel-r2-hard-nan2008-uclibc")
1213 .flag("-msoft-float")
1216 auto BeHardUclibc = makeMultilib("/mips-r2-hard-uclibc")
1218 .flag("-msoft-float")
1221 auto ElHardUclibc = makeMultilib("/mipsel-r2-hard-uclibc")
1223 .flag("-msoft-float")
1226 auto ElMicroHardNan = makeMultilib("/micromipsel-r2-hard-nan2008")
1228 .flag("-msoft-float")
1230 .flag("+mmicromips");
1231 auto ElMicroSoft = makeMultilib("/micromipsel-r2-soft")
1233 .flag("+msoft-float")
1235 .flag("+mmicromips");
1238 makeMultilib("/lib").osSuffix("").flag("-mabi=n32").flag("-mabi=n64");
1240 makeMultilib("/lib32").osSuffix("").flag("+mabi=n32").flag("-mabi=n64");
1242 makeMultilib("/lib64").osSuffix("").flag("-mabi=n32").flag("+mabi=n64");
1244 MtiMipsMultilibsV2 =
1246 .Either({BeHard, BeSoft, ElHard, ElSoft, BeHardNan, ElHardNan,
1247 BeHardNanUclibc, ElHardNanUclibc, BeHardUclibc,
1248 ElHardUclibc, ElMicroHardNan, ElMicroSoft})
1249 .Either(O32, N32, N64)
1250 .FilterOut(NonExistent)
1251 .setIncludeDirsCallback([](const Multilib &M) {
1252 return std::vector<std::string>({"/../../../../sysroot" +
1254 "/../usr/include"});
1256 .setFilePathsCallback([](const Multilib &M) {
1257 return std::vector<std::string>(
1258 {"/../../../../mips-mti-linux-gnu/lib" + M.gccSuffix()});
1261 for (auto Candidate : {&MtiMipsMultilibsV1, &MtiMipsMultilibsV2}) {
1262 if (Candidate->select(Flags, Result.SelectedMultilib)) {
1263 Result.Multilibs = *Candidate;
1270 static bool findMipsImgMultilibs(const Multilib::flags_list &Flags,
1271 FilterNonExistent &NonExistent,
1272 DetectedMultilibs &Result) {
1273 // CodeScape IMG toolchain v1.2 and early.
1274 MultilibSet ImgMultilibsV1;
1276 auto Mips64r6 = makeMultilib("/mips64r6").flag("+m64").flag("-m32");
1278 auto LittleEndian = makeMultilib("/el").flag("+EL").flag("-EB");
1281 makeMultilib("/64").flag("+mabi=n64").flag("-mabi=n32").flag("-m32");
1287 .Maybe(LittleEndian)
1288 .FilterOut(NonExistent)
1289 .setIncludeDirsCallback([](const Multilib &M) {
1290 return std::vector<std::string>(
1291 {"/include", "/../../../../sysroot/usr/include"});
1295 // CodeScape IMG toolchain starting from v1.3.
1296 MultilibSet ImgMultilibsV2;
1298 auto BeHard = makeMultilib("/mips-r6-hard")
1300 .flag("-msoft-float")
1301 .flag("-mmicromips");
1302 auto BeSoft = makeMultilib("/mips-r6-soft")
1304 .flag("+msoft-float")
1305 .flag("-mmicromips");
1306 auto ElHard = makeMultilib("/mipsel-r6-hard")
1308 .flag("-msoft-float")
1309 .flag("-mmicromips");
1310 auto ElSoft = makeMultilib("/mipsel-r6-soft")
1312 .flag("+msoft-float")
1313 .flag("-mmicromips");
1314 auto BeMicroHard = makeMultilib("/micromips-r6-hard")
1316 .flag("-msoft-float")
1317 .flag("+mmicromips");
1318 auto BeMicroSoft = makeMultilib("/micromips-r6-soft")
1320 .flag("+msoft-float")
1321 .flag("+mmicromips");
1322 auto ElMicroHard = makeMultilib("/micromipsel-r6-hard")
1324 .flag("-msoft-float")
1325 .flag("+mmicromips");
1326 auto ElMicroSoft = makeMultilib("/micromipsel-r6-soft")
1328 .flag("+msoft-float")
1329 .flag("+mmicromips");
1332 makeMultilib("/lib").osSuffix("").flag("-mabi=n32").flag("-mabi=n64");
1334 makeMultilib("/lib32").osSuffix("").flag("+mabi=n32").flag("-mabi=n64");
1336 makeMultilib("/lib64").osSuffix("").flag("-mabi=n32").flag("+mabi=n64");
1340 .Either({BeHard, BeSoft, ElHard, ElSoft, BeMicroHard, BeMicroSoft,
1341 ElMicroHard, ElMicroSoft})
1342 .Either(O32, N32, N64)
1343 .FilterOut(NonExistent)
1344 .setIncludeDirsCallback([](const Multilib &M) {
1345 return std::vector<std::string>({"/../../../../sysroot" +
1347 "/../usr/include"});
1349 .setFilePathsCallback([](const Multilib &M) {
1350 return std::vector<std::string>(
1351 {"/../../../../mips-img-linux-gnu/lib" + M.gccSuffix()});
1354 for (auto Candidate : {&ImgMultilibsV1, &ImgMultilibsV2}) {
1355 if (Candidate->select(Flags, Result.SelectedMultilib)) {
1356 Result.Multilibs = *Candidate;
1363 bool clang::driver::findMIPSMultilibs(const Driver &D,
1364 const llvm::Triple &TargetTriple,
1365 StringRef Path, const ArgList &Args,
1366 DetectedMultilibs &Result) {
1367 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1371 tools::mips::getMipsCPUAndABI(Args, TargetTriple, CPUName, ABIName);
1373 llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
1375 Multilib::flags_list Flags;
1376 addMultilibFlag(isMips32(TargetArch), "m32", Flags);
1377 addMultilibFlag(isMips64(TargetArch), "m64", Flags);
1378 addMultilibFlag(isMips16(Args), "mips16", Flags);
1379 addMultilibFlag(CPUName == "mips32", "march=mips32", Flags);
1380 addMultilibFlag(CPUName == "mips32r2" || CPUName == "mips32r3" ||
1381 CPUName == "mips32r5" || CPUName == "p5600",
1382 "march=mips32r2", Flags);
1383 addMultilibFlag(CPUName == "mips32r6", "march=mips32r6", Flags);
1384 addMultilibFlag(CPUName == "mips64", "march=mips64", Flags);
1385 addMultilibFlag(CPUName == "mips64r2" || CPUName == "mips64r3" ||
1386 CPUName == "mips64r5" || CPUName == "octeon",
1387 "march=mips64r2", Flags);
1388 addMultilibFlag(CPUName == "mips64r6", "march=mips64r6", Flags);
1389 addMultilibFlag(isMicroMips(Args), "mmicromips", Flags);
1390 addMultilibFlag(tools::mips::isUCLibc(Args), "muclibc", Flags);
1391 addMultilibFlag(tools::mips::isNaN2008(Args, TargetTriple), "mnan=2008",
1393 addMultilibFlag(ABIName == "n32", "mabi=n32", Flags);
1394 addMultilibFlag(ABIName == "n64", "mabi=n64", Flags);
1395 addMultilibFlag(isSoftFloatABI(Args), "msoft-float", Flags);
1396 addMultilibFlag(!isSoftFloatABI(Args), "mhard-float", Flags);
1397 addMultilibFlag(isMipsEL(TargetArch), "EL", Flags);
1398 addMultilibFlag(!isMipsEL(TargetArch), "EB", Flags);
1400 if (TargetTriple.isAndroid())
1401 return findMipsAndroidMultilibs(D.getVFS(), Path, Flags, NonExistent,
1404 if (TargetTriple.getVendor() == llvm::Triple::MipsTechnologies &&
1405 TargetTriple.getOS() == llvm::Triple::Linux &&
1406 TargetTriple.getEnvironment() == llvm::Triple::UnknownEnvironment)
1407 return findMipsMuslMultilibs(Flags, NonExistent, Result);
1409 if (TargetTriple.getVendor() == llvm::Triple::MipsTechnologies &&
1410 TargetTriple.getOS() == llvm::Triple::Linux &&
1411 TargetTriple.getEnvironment() == llvm::Triple::GNU)
1412 return findMipsMtiMultilibs(Flags, NonExistent, Result);
1414 if (TargetTriple.getVendor() == llvm::Triple::ImaginationTechnologies &&
1415 TargetTriple.getOS() == llvm::Triple::Linux &&
1416 TargetTriple.getEnvironment() == llvm::Triple::GNU)
1417 return findMipsImgMultilibs(Flags, NonExistent, Result);
1419 if (findMipsCsMultilibs(Flags, NonExistent, Result))
1422 // Fallback to the regular toolchain-tree structure.
1424 Result.Multilibs.push_back(Default);
1425 Result.Multilibs.FilterOut(NonExistent);
1427 if (Result.Multilibs.select(Flags, Result.SelectedMultilib)) {
1428 Result.BiarchSibling = Multilib();
1435 static void findAndroidArmMultilibs(const Driver &D,
1436 const llvm::Triple &TargetTriple,
1437 StringRef Path, const ArgList &Args,
1438 DetectedMultilibs &Result) {
1439 // Find multilibs with subdirectories like armv7-a, thumb, armv7-a/thumb.
1440 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1441 Multilib ArmV7Multilib = makeMultilib("/armv7-a")
1442 .flag("+march=armv7-a")
1444 Multilib ThumbMultilib = makeMultilib("/thumb")
1445 .flag("-march=armv7-a")
1447 Multilib ArmV7ThumbMultilib = makeMultilib("/armv7-a/thumb")
1448 .flag("+march=armv7-a")
1450 Multilib DefaultMultilib = makeMultilib("")
1451 .flag("-march=armv7-a")
1453 MultilibSet AndroidArmMultilibs =
1455 .Either(ThumbMultilib, ArmV7Multilib,
1456 ArmV7ThumbMultilib, DefaultMultilib)
1457 .FilterOut(NonExistent);
1459 Multilib::flags_list Flags;
1460 llvm::StringRef Arch = Args.getLastArgValue(options::OPT_march_EQ);
1461 bool IsArmArch = TargetTriple.getArch() == llvm::Triple::arm;
1462 bool IsThumbArch = TargetTriple.getArch() == llvm::Triple::thumb;
1463 bool IsV7SubArch = TargetTriple.getSubArch() == llvm::Triple::ARMSubArch_v7;
1464 bool IsThumbMode = IsThumbArch ||
1465 Args.hasFlag(options::OPT_mthumb, options::OPT_mno_thumb, false) ||
1466 (IsArmArch && llvm::ARM::parseArchISA(Arch) == llvm::ARM::IK_THUMB);
1467 bool IsArmV7Mode = (IsArmArch || IsThumbArch) &&
1468 (llvm::ARM::parseArchVersion(Arch) == 7 ||
1469 (IsArmArch && Arch == "" && IsV7SubArch));
1470 addMultilibFlag(IsArmV7Mode, "march=armv7-a", Flags);
1471 addMultilibFlag(IsThumbMode, "mthumb", Flags);
1473 if (AndroidArmMultilibs.select(Flags, Result.SelectedMultilib))
1474 Result.Multilibs = AndroidArmMultilibs;
1477 static bool findBiarchMultilibs(const Driver &D,
1478 const llvm::Triple &TargetTriple,
1479 StringRef Path, const ArgList &Args,
1480 bool NeedsBiarchSuffix,
1481 DetectedMultilibs &Result) {
1482 // Some versions of SUSE and Fedora on ppc64 put 32-bit libs
1483 // in what would normally be GCCInstallPath and put the 64-bit
1484 // libs in a subdirectory named 64. The simple logic we follow is that
1485 // *if* there is a subdirectory of the right name with crtbegin.o in it,
1486 // we use that. If not, and if not a biarch triple alias, we look for
1487 // crtbegin.o without the subdirectory.
1490 Multilib Alt64 = Multilib()
1492 .includeSuffix("/64")
1496 Multilib Alt32 = Multilib()
1498 .includeSuffix("/32")
1502 Multilib Altx32 = Multilib()
1504 .includeSuffix("/x32")
1509 // GCC toolchain for IAMCU doesn't have crtbegin.o, so look for libgcc.a.
1510 FilterNonExistent NonExistent(
1511 Path, TargetTriple.isOSIAMCU() ? "/libgcc.a" : "/crtbegin.o", D.getVFS());
1513 // Determine default multilib from: 32, 64, x32
1514 // Also handle cases such as 64 on 32, 32 on 64, etc.
1515 enum { UNKNOWN, WANT32, WANT64, WANTX32 } Want = UNKNOWN;
1516 const bool IsX32 = TargetTriple.getEnvironment() == llvm::Triple::GNUX32;
1517 if (TargetTriple.isArch32Bit() && !NonExistent(Alt32))
1519 else if (TargetTriple.isArch64Bit() && IsX32 && !NonExistent(Altx32))
1521 else if (TargetTriple.isArch64Bit() && !IsX32 && !NonExistent(Alt64))
1524 if (TargetTriple.isArch32Bit())
1525 Want = NeedsBiarchSuffix ? WANT64 : WANT32;
1527 Want = NeedsBiarchSuffix ? WANT64 : WANTX32;
1529 Want = NeedsBiarchSuffix ? WANT32 : WANT64;
1533 Default.flag("+m32").flag("-m64").flag("-mx32");
1534 else if (Want == WANT64)
1535 Default.flag("-m32").flag("+m64").flag("-mx32");
1536 else if (Want == WANTX32)
1537 Default.flag("-m32").flag("-m64").flag("+mx32");
1541 Result.Multilibs.push_back(Default);
1542 Result.Multilibs.push_back(Alt64);
1543 Result.Multilibs.push_back(Alt32);
1544 Result.Multilibs.push_back(Altx32);
1546 Result.Multilibs.FilterOut(NonExistent);
1548 Multilib::flags_list Flags;
1549 addMultilibFlag(TargetTriple.isArch64Bit() && !IsX32, "m64", Flags);
1550 addMultilibFlag(TargetTriple.isArch32Bit(), "m32", Flags);
1551 addMultilibFlag(TargetTriple.isArch64Bit() && IsX32, "mx32", Flags);
1553 if (!Result.Multilibs.select(Flags, Result.SelectedMultilib))
1556 if (Result.SelectedMultilib == Alt64 || Result.SelectedMultilib == Alt32 ||
1557 Result.SelectedMultilib == Altx32)
1558 Result.BiarchSibling = Default;
1563 /// Generic_GCC - A tool chain using the 'gcc' command to perform
1564 /// all subcommands; this relies on gcc translating the majority of
1565 /// command line options.
1567 /// \brief Less-than for GCCVersion, implementing a Strict Weak Ordering.
1568 bool Generic_GCC::GCCVersion::isOlderThan(int RHSMajor, int RHSMinor,
1570 StringRef RHSPatchSuffix) const {
1571 if (Major != RHSMajor)
1572 return Major < RHSMajor;
1573 if (Minor != RHSMinor)
1574 return Minor < RHSMinor;
1575 if (Patch != RHSPatch) {
1576 // Note that versions without a specified patch sort higher than those with
1583 // Otherwise just sort on the patch itself.
1584 return Patch < RHSPatch;
1586 if (PatchSuffix != RHSPatchSuffix) {
1587 // Sort empty suffixes higher.
1588 if (RHSPatchSuffix.empty())
1590 if (PatchSuffix.empty())
1593 // Provide a lexicographic sort to make this a total ordering.
1594 return PatchSuffix < RHSPatchSuffix;
1597 // The versions are equal.
1601 /// \brief Parse a GCCVersion object out of a string of text.
1603 /// This is the primary means of forming GCCVersion objects.
1605 Generic_GCC::GCCVersion Generic_GCC::GCCVersion::Parse(StringRef VersionText) {
1606 const GCCVersion BadVersion = {VersionText.str(), -1, -1, -1, "", "", ""};
1607 std::pair<StringRef, StringRef> First = VersionText.split('.');
1608 std::pair<StringRef, StringRef> Second = First.second.split('.');
1610 GCCVersion GoodVersion = {VersionText.str(), -1, -1, -1, "", "", ""};
1611 if (First.first.getAsInteger(10, GoodVersion.Major) || GoodVersion.Major < 0)
1613 GoodVersion.MajorStr = First.first.str();
1614 if (First.second.empty())
1616 if (Second.first.getAsInteger(10, GoodVersion.Minor) || GoodVersion.Minor < 0)
1618 GoodVersion.MinorStr = Second.first.str();
1620 // First look for a number prefix and parse that if present. Otherwise just
1621 // stash the entire patch string in the suffix, and leave the number
1622 // unspecified. This covers versions strings such as:
1623 // 5 (handled above)
1629 // And retains any patch number it finds.
1630 StringRef PatchText = GoodVersion.PatchSuffix = Second.second.str();
1631 if (!PatchText.empty()) {
1632 if (size_t EndNumber = PatchText.find_first_not_of("0123456789")) {
1633 // Try to parse the number and any suffix.
1634 if (PatchText.slice(0, EndNumber).getAsInteger(10, GoodVersion.Patch) ||
1635 GoodVersion.Patch < 0)
1637 GoodVersion.PatchSuffix = PatchText.substr(EndNumber);
1644 static llvm::StringRef getGCCToolchainDir(const ArgList &Args) {
1645 const Arg *A = Args.getLastArg(clang::driver::options::OPT_gcc_toolchain);
1647 return A->getValue();
1648 return GCC_INSTALL_PREFIX;
1651 /// \brief Initialize a GCCInstallationDetector from the driver.
1653 /// This performs all of the autodetection and sets up the various paths.
1654 /// Once constructed, a GCCInstallationDetector is essentially immutable.
1656 /// FIXME: We shouldn't need an explicit TargetTriple parameter here, and
1657 /// should instead pull the target out of the driver. This is currently
1658 /// necessary because the driver doesn't store the final version of the target
1660 void Generic_GCC::GCCInstallationDetector::init(
1661 const llvm::Triple &TargetTriple, const ArgList &Args,
1662 ArrayRef<std::string> ExtraTripleAliases) {
1663 llvm::Triple BiarchVariantTriple = TargetTriple.isArch32Bit()
1664 ? TargetTriple.get64BitArchVariant()
1665 : TargetTriple.get32BitArchVariant();
1666 // The library directories which may contain GCC installations.
1667 SmallVector<StringRef, 4> CandidateLibDirs, CandidateBiarchLibDirs;
1668 // The compatible GCC triples for this particular architecture.
1669 SmallVector<StringRef, 16> CandidateTripleAliases;
1670 SmallVector<StringRef, 16> CandidateBiarchTripleAliases;
1671 CollectLibDirsAndTriples(TargetTriple, BiarchVariantTriple, CandidateLibDirs,
1672 CandidateTripleAliases, CandidateBiarchLibDirs,
1673 CandidateBiarchTripleAliases);
1675 // Compute the set of prefixes for our search.
1676 SmallVector<std::string, 8> Prefixes(D.PrefixDirs.begin(),
1677 D.PrefixDirs.end());
1679 StringRef GCCToolchainDir = getGCCToolchainDir(Args);
1680 if (GCCToolchainDir != "") {
1681 if (GCCToolchainDir.back() == '/')
1682 GCCToolchainDir = GCCToolchainDir.drop_back(); // remove the /
1684 Prefixes.push_back(GCCToolchainDir);
1686 // If we have a SysRoot, try that first.
1687 if (!D.SysRoot.empty()) {
1688 Prefixes.push_back(D.SysRoot);
1689 Prefixes.push_back(D.SysRoot + "/usr");
1692 // Then look for gcc installed alongside clang.
1693 Prefixes.push_back(D.InstalledDir + "/..");
1695 // Then look for distribution supplied gcc installations.
1696 if (D.SysRoot.empty()) {
1697 // Look for RHEL devtoolsets.
1698 Prefixes.push_back("/opt/rh/devtoolset-6/root/usr");
1699 Prefixes.push_back("/opt/rh/devtoolset-4/root/usr");
1700 Prefixes.push_back("/opt/rh/devtoolset-3/root/usr");
1701 Prefixes.push_back("/opt/rh/devtoolset-2/root/usr");
1702 // And finally in /usr.
1703 Prefixes.push_back("/usr");
1707 // Try to respect gcc-config on Gentoo. However, do that only
1708 // if --gcc-toolchain is not provided or equal to the Gentoo install
1709 // in /usr. This avoids accidentally enforcing the system GCC version
1710 // when using a custom toolchain.
1711 if (GCCToolchainDir == "" || GCCToolchainDir == D.SysRoot + "/usr") {
1712 for (StringRef CandidateTriple : ExtraTripleAliases) {
1713 if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple))
1716 for (StringRef CandidateTriple : CandidateTripleAliases) {
1717 if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple))
1720 for (StringRef CandidateTriple : CandidateBiarchTripleAliases) {
1721 if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple, true))
1726 // Loop over the various components which exist and select the best GCC
1727 // installation available. GCC installs are ranked by version number.
1728 Version = GCCVersion::Parse("0.0.0");
1729 for (const std::string &Prefix : Prefixes) {
1730 if (!D.getVFS().exists(Prefix))
1732 for (StringRef Suffix : CandidateLibDirs) {
1733 const std::string LibDir = Prefix + Suffix.str();
1734 if (!D.getVFS().exists(LibDir))
1736 for (StringRef Candidate : ExtraTripleAliases) // Try these first.
1737 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate);
1738 for (StringRef Candidate : CandidateTripleAliases)
1739 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate);
1741 for (StringRef Suffix : CandidateBiarchLibDirs) {
1742 const std::string LibDir = Prefix + Suffix.str();
1743 if (!D.getVFS().exists(LibDir))
1745 for (StringRef Candidate : CandidateBiarchTripleAliases)
1746 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate,
1747 /*NeedsBiarchSuffix=*/ true);
1752 void Generic_GCC::GCCInstallationDetector::print(raw_ostream &OS) const {
1753 for (const auto &InstallPath : CandidateGCCInstallPaths)
1754 OS << "Found candidate GCC installation: " << InstallPath << "\n";
1756 if (!GCCInstallPath.empty())
1757 OS << "Selected GCC installation: " << GCCInstallPath << "\n";
1759 for (const auto &Multilib : Multilibs)
1760 OS << "Candidate multilib: " << Multilib << "\n";
1762 if (Multilibs.size() != 0 || !SelectedMultilib.isDefault())
1763 OS << "Selected multilib: " << SelectedMultilib << "\n";
1766 bool Generic_GCC::GCCInstallationDetector::getBiarchSibling(Multilib &M) const {
1767 if (BiarchSibling.hasValue()) {
1768 M = BiarchSibling.getValue();
1774 /*static*/ void Generic_GCC::GCCInstallationDetector::CollectLibDirsAndTriples(
1775 const llvm::Triple &TargetTriple, const llvm::Triple &BiarchTriple,
1776 SmallVectorImpl<StringRef> &LibDirs,
1777 SmallVectorImpl<StringRef> &TripleAliases,
1778 SmallVectorImpl<StringRef> &BiarchLibDirs,
1779 SmallVectorImpl<StringRef> &BiarchTripleAliases) {
1780 // Declare a bunch of static data sets that we'll select between below. These
1781 // are specifically designed to always refer to string literals to avoid any
1782 // lifetime or initialization issues.
1783 static const char *const AArch64LibDirs[] = {"/lib64", "/lib"};
1784 static const char *const AArch64Triples[] = {
1785 "aarch64-none-linux-gnu", "aarch64-linux-gnu", "aarch64-linux-android",
1786 "aarch64-redhat-linux", "aarch64-suse-linux"};
1787 static const char *const AArch64beLibDirs[] = {"/lib"};
1788 static const char *const AArch64beTriples[] = {"aarch64_be-none-linux-gnu",
1789 "aarch64_be-linux-gnu"};
1791 static const char *const ARMLibDirs[] = {"/lib"};
1792 static const char *const ARMTriples[] = {"arm-linux-gnueabi",
1793 "arm-linux-androideabi"};
1794 static const char *const ARMHFTriples[] = {"arm-linux-gnueabihf",
1795 "armv7hl-redhat-linux-gnueabi",
1796 "armv6hl-suse-linux-gnueabi",
1797 "armv7hl-suse-linux-gnueabi"};
1798 static const char *const ARMebLibDirs[] = {"/lib"};
1799 static const char *const ARMebTriples[] = {"armeb-linux-gnueabi",
1800 "armeb-linux-androideabi"};
1801 static const char *const ARMebHFTriples[] = {
1802 "armeb-linux-gnueabihf", "armebv7hl-redhat-linux-gnueabi"};
1804 static const char *const X86_64LibDirs[] = {"/lib64", "/lib"};
1805 static const char *const X86_64Triples[] = {
1806 "x86_64-linux-gnu", "x86_64-unknown-linux-gnu",
1807 "x86_64-pc-linux-gnu", "x86_64-redhat-linux6E",
1808 "x86_64-redhat-linux", "x86_64-suse-linux",
1809 "x86_64-manbo-linux-gnu", "x86_64-linux-gnu",
1810 "x86_64-slackware-linux", "x86_64-linux-android",
1811 "x86_64-unknown-linux"};
1812 static const char *const X32LibDirs[] = {"/libx32"};
1813 static const char *const X86LibDirs[] = {"/lib32", "/lib"};
1814 static const char *const X86Triples[] = {
1815 "i686-linux-gnu", "i686-pc-linux-gnu", "i486-linux-gnu",
1816 "i386-linux-gnu", "i386-redhat-linux6E", "i686-redhat-linux",
1817 "i586-redhat-linux", "i386-redhat-linux", "i586-suse-linux",
1818 "i486-slackware-linux", "i686-montavista-linux", "i686-linux-android",
1821 static const char *const MIPSLibDirs[] = {"/lib"};
1822 static const char *const MIPSTriples[] = {"mips-linux-gnu", "mips-mti-linux",
1823 "mips-mti-linux-gnu",
1824 "mips-img-linux-gnu"};
1825 static const char *const MIPSELLibDirs[] = {"/lib"};
1826 static const char *const MIPSELTriples[] = {"mipsel-linux-gnu",
1827 "mips-img-linux-gnu"};
1829 static const char *const MIPS64LibDirs[] = {"/lib64", "/lib"};
1830 static const char *const MIPS64Triples[] = {
1831 "mips64-linux-gnu", "mips-mti-linux-gnu", "mips-img-linux-gnu",
1832 "mips64-linux-gnuabi64"};
1833 static const char *const MIPS64ELLibDirs[] = {"/lib64", "/lib"};
1834 static const char *const MIPS64ELTriples[] = {
1835 "mips64el-linux-gnu", "mips-mti-linux-gnu", "mips-img-linux-gnu",
1836 "mips64el-linux-gnuabi64"};
1838 static const char *const MIPSELAndroidLibDirs[] = {"/lib", "/libr2",
1840 static const char *const MIPSELAndroidTriples[] = {"mipsel-linux-android"};
1841 static const char *const MIPS64ELAndroidLibDirs[] = {"/lib64", "/lib",
1842 "/libr2", "/libr6"};
1843 static const char *const MIPS64ELAndroidTriples[] = {
1844 "mips64el-linux-android"};
1846 static const char *const PPCLibDirs[] = {"/lib32", "/lib"};
1847 static const char *const PPCTriples[] = {
1848 "powerpc-linux-gnu", "powerpc-unknown-linux-gnu", "powerpc-linux-gnuspe",
1849 "powerpc-suse-linux", "powerpc-montavista-linuxspe"};
1850 static const char *const PPC64LibDirs[] = {"/lib64", "/lib"};
1851 static const char *const PPC64Triples[] = {
1852 "powerpc64-linux-gnu", "powerpc64-unknown-linux-gnu",
1853 "powerpc64-suse-linux", "ppc64-redhat-linux"};
1854 static const char *const PPC64LELibDirs[] = {"/lib64", "/lib"};
1855 static const char *const PPC64LETriples[] = {
1856 "powerpc64le-linux-gnu", "powerpc64le-unknown-linux-gnu",
1857 "powerpc64le-suse-linux", "ppc64le-redhat-linux"};
1859 static const char *const SPARCv8LibDirs[] = {"/lib32", "/lib"};
1860 static const char *const SPARCv8Triples[] = {"sparc-linux-gnu",
1861 "sparcv8-linux-gnu"};
1862 static const char *const SPARCv9LibDirs[] = {"/lib64", "/lib"};
1863 static const char *const SPARCv9Triples[] = {"sparc64-linux-gnu",
1864 "sparcv9-linux-gnu"};
1866 static const char *const SystemZLibDirs[] = {"/lib64", "/lib"};
1867 static const char *const SystemZTriples[] = {
1868 "s390x-linux-gnu", "s390x-unknown-linux-gnu", "s390x-ibm-linux-gnu",
1869 "s390x-suse-linux", "s390x-redhat-linux"};
1872 static const char *const SolarisSPARCLibDirs[] = {"/gcc"};
1873 static const char *const SolarisSPARCTriples[] = {"sparc-sun-solaris2.11",
1874 "i386-pc-solaris2.11"};
1879 if (TargetTriple.getOS() == llvm::Triple::Solaris) {
1880 LibDirs.append(begin(SolarisSPARCLibDirs), end(SolarisSPARCLibDirs));
1881 TripleAliases.append(begin(SolarisSPARCTriples), end(SolarisSPARCTriples));
1885 switch (TargetTriple.getArch()) {
1886 case llvm::Triple::aarch64:
1887 LibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
1888 TripleAliases.append(begin(AArch64Triples), end(AArch64Triples));
1889 BiarchLibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
1890 BiarchTripleAliases.append(begin(AArch64Triples), end(AArch64Triples));
1892 case llvm::Triple::aarch64_be:
1893 LibDirs.append(begin(AArch64beLibDirs), end(AArch64beLibDirs));
1894 TripleAliases.append(begin(AArch64beTriples), end(AArch64beTriples));
1895 BiarchLibDirs.append(begin(AArch64beLibDirs), end(AArch64beLibDirs));
1896 BiarchTripleAliases.append(begin(AArch64beTriples), end(AArch64beTriples));
1898 case llvm::Triple::arm:
1899 case llvm::Triple::thumb:
1900 LibDirs.append(begin(ARMLibDirs), end(ARMLibDirs));
1901 if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF) {
1902 TripleAliases.append(begin(ARMHFTriples), end(ARMHFTriples));
1904 TripleAliases.append(begin(ARMTriples), end(ARMTriples));
1907 case llvm::Triple::armeb:
1908 case llvm::Triple::thumbeb:
1909 LibDirs.append(begin(ARMebLibDirs), end(ARMebLibDirs));
1910 if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF) {
1911 TripleAliases.append(begin(ARMebHFTriples), end(ARMebHFTriples));
1913 TripleAliases.append(begin(ARMebTriples), end(ARMebTriples));
1916 case llvm::Triple::x86_64:
1917 LibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
1918 TripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
1919 // x32 is always available when x86_64 is available, so adding it as
1920 // secondary arch with x86_64 triples
1921 if (TargetTriple.getEnvironment() == llvm::Triple::GNUX32) {
1922 BiarchLibDirs.append(begin(X32LibDirs), end(X32LibDirs));
1923 BiarchTripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
1925 BiarchLibDirs.append(begin(X86LibDirs), end(X86LibDirs));
1926 BiarchTripleAliases.append(begin(X86Triples), end(X86Triples));
1929 case llvm::Triple::x86:
1930 LibDirs.append(begin(X86LibDirs), end(X86LibDirs));
1931 // MCU toolchain is 32 bit only and its triple alias is TargetTriple
1932 // itself, which will be appended below.
1933 if (!TargetTriple.isOSIAMCU()) {
1934 TripleAliases.append(begin(X86Triples), end(X86Triples));
1935 BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
1936 BiarchTripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
1939 case llvm::Triple::mips:
1940 LibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs));
1941 TripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
1942 BiarchLibDirs.append(begin(MIPS64LibDirs), end(MIPS64LibDirs));
1943 BiarchTripleAliases.append(begin(MIPS64Triples), end(MIPS64Triples));
1945 case llvm::Triple::mipsel:
1946 if (TargetTriple.isAndroid()) {
1947 LibDirs.append(begin(MIPSELAndroidLibDirs), end(MIPSELAndroidLibDirs));
1948 TripleAliases.append(begin(MIPSELAndroidTriples),
1949 end(MIPSELAndroidTriples));
1950 BiarchLibDirs.append(begin(MIPS64ELAndroidLibDirs),
1951 end(MIPS64ELAndroidLibDirs));
1952 BiarchTripleAliases.append(begin(MIPS64ELAndroidTriples),
1953 end(MIPS64ELAndroidTriples));
1956 LibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs));
1957 TripleAliases.append(begin(MIPSELTriples), end(MIPSELTriples));
1958 TripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
1959 BiarchLibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs));
1960 BiarchTripleAliases.append(begin(MIPS64ELTriples), end(MIPS64ELTriples));
1963 case llvm::Triple::mips64:
1964 LibDirs.append(begin(MIPS64LibDirs), end(MIPS64LibDirs));
1965 TripleAliases.append(begin(MIPS64Triples), end(MIPS64Triples));
1966 BiarchLibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs));
1967 BiarchTripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
1969 case llvm::Triple::mips64el:
1970 if (TargetTriple.isAndroid()) {
1971 LibDirs.append(begin(MIPS64ELAndroidLibDirs),
1972 end(MIPS64ELAndroidLibDirs));
1973 TripleAliases.append(begin(MIPS64ELAndroidTriples),
1974 end(MIPS64ELAndroidTriples));
1975 BiarchLibDirs.append(begin(MIPSELAndroidLibDirs),
1976 end(MIPSELAndroidLibDirs));
1977 BiarchTripleAliases.append(begin(MIPSELAndroidTriples),
1978 end(MIPSELAndroidTriples));
1981 LibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs));
1982 TripleAliases.append(begin(MIPS64ELTriples), end(MIPS64ELTriples));
1983 BiarchLibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs));
1984 BiarchTripleAliases.append(begin(MIPSELTriples), end(MIPSELTriples));
1985 BiarchTripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
1988 case llvm::Triple::ppc:
1989 LibDirs.append(begin(PPCLibDirs), end(PPCLibDirs));
1990 TripleAliases.append(begin(PPCTriples), end(PPCTriples));
1991 BiarchLibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs));
1992 BiarchTripleAliases.append(begin(PPC64Triples), end(PPC64Triples));
1994 case llvm::Triple::ppc64:
1995 LibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs));
1996 TripleAliases.append(begin(PPC64Triples), end(PPC64Triples));
1997 BiarchLibDirs.append(begin(PPCLibDirs), end(PPCLibDirs));
1998 BiarchTripleAliases.append(begin(PPCTriples), end(PPCTriples));
2000 case llvm::Triple::ppc64le:
2001 LibDirs.append(begin(PPC64LELibDirs), end(PPC64LELibDirs));
2002 TripleAliases.append(begin(PPC64LETriples), end(PPC64LETriples));
2004 case llvm::Triple::sparc:
2005 case llvm::Triple::sparcel:
2006 LibDirs.append(begin(SPARCv8LibDirs), end(SPARCv8LibDirs));
2007 TripleAliases.append(begin(SPARCv8Triples), end(SPARCv8Triples));
2008 BiarchLibDirs.append(begin(SPARCv9LibDirs), end(SPARCv9LibDirs));
2009 BiarchTripleAliases.append(begin(SPARCv9Triples), end(SPARCv9Triples));
2011 case llvm::Triple::sparcv9:
2012 LibDirs.append(begin(SPARCv9LibDirs), end(SPARCv9LibDirs));
2013 TripleAliases.append(begin(SPARCv9Triples), end(SPARCv9Triples));
2014 BiarchLibDirs.append(begin(SPARCv8LibDirs), end(SPARCv8LibDirs));
2015 BiarchTripleAliases.append(begin(SPARCv8Triples), end(SPARCv8Triples));
2017 case llvm::Triple::systemz:
2018 LibDirs.append(begin(SystemZLibDirs), end(SystemZLibDirs));
2019 TripleAliases.append(begin(SystemZTriples), end(SystemZTriples));
2022 // By default, just rely on the standard lib directories and the original
2027 // Always append the drivers target triple to the end, in case it doesn't
2028 // match any of our aliases.
2029 TripleAliases.push_back(TargetTriple.str());
2031 // Also include the multiarch variant if it's different.
2032 if (TargetTriple.str() != BiarchTriple.str())
2033 BiarchTripleAliases.push_back(BiarchTriple.str());
2036 void Generic_GCC::GCCInstallationDetector::scanLibDirForGCCTripleSolaris(
2037 const llvm::Triple &TargetArch, const llvm::opt::ArgList &Args,
2038 const std::string &LibDir, StringRef CandidateTriple,
2039 bool NeedsBiarchSuffix) {
2040 // Solaris is a special case. The GCC installation is under
2041 // /usr/gcc/<major>.<minor>/lib/gcc/<triple>/<major>.<minor>.<patch>/, so we
2042 // need to iterate twice.
2044 for (vfs::directory_iterator LI = D.getVFS().dir_begin(LibDir, EC), LE;
2045 !EC && LI != LE; LI = LI.increment(EC)) {
2046 StringRef VersionText = llvm::sys::path::filename(LI->getName());
2047 GCCVersion CandidateVersion = GCCVersion::Parse(VersionText);
2049 if (CandidateVersion.Major != -1) // Filter obviously bad entries.
2050 if (!CandidateGCCInstallPaths.insert(LI->getName()).second)
2051 continue; // Saw this path before; no need to look at it again.
2052 if (CandidateVersion.isOlderThan(4, 1, 1))
2054 if (CandidateVersion <= Version)
2058 LibDir + "/" + VersionText.str() + "/lib/gcc/" + CandidateTriple.str();
2059 if (!D.getVFS().exists(GCCInstallPath))
2062 // If we make it here there has to be at least one GCC version, let's just
2063 // use the latest one.
2064 std::error_code EEC;
2065 for (vfs::directory_iterator
2066 LLI = D.getVFS().dir_begin(GCCInstallPath, EEC),
2068 !EEC && LLI != LLE; LLI = LLI.increment(EEC)) {
2070 StringRef SubVersionText = llvm::sys::path::filename(LLI->getName());
2071 GCCVersion CandidateSubVersion = GCCVersion::Parse(SubVersionText);
2073 if (CandidateSubVersion > Version)
2074 Version = CandidateSubVersion;
2077 GCCTriple.setTriple(CandidateTriple);
2079 GCCInstallPath += "/" + Version.Text;
2080 GCCParentLibPath = GCCInstallPath + "/../../../../";
2086 bool Generic_GCC::GCCInstallationDetector::ScanGCCForMultilibs(
2087 const llvm::Triple &TargetTriple, const ArgList &Args,
2088 StringRef Path, bool NeedsBiarchSuffix) {
2089 llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
2090 DetectedMultilibs Detected;
2092 // Android standalone toolchain could have multilibs for ARM and Thumb.
2093 // Debian mips multilibs behave more like the rest of the biarch ones,
2094 // so handle them there
2095 if (isArmOrThumbArch(TargetArch) && TargetTriple.isAndroid()) {
2096 // It should also work without multilibs in a simplified toolchain.
2097 findAndroidArmMultilibs(D, TargetTriple, Path, Args, Detected);
2098 } else if (tools::isMipsArch(TargetArch)) {
2099 if (!findMIPSMultilibs(D, TargetTriple, Path, Args, Detected))
2101 } else if (!findBiarchMultilibs(D, TargetTriple, Path, Args,
2102 NeedsBiarchSuffix, Detected)) {
2106 Multilibs = Detected.Multilibs;
2107 SelectedMultilib = Detected.SelectedMultilib;
2108 BiarchSibling = Detected.BiarchSibling;
2113 void Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple(
2114 const llvm::Triple &TargetTriple, const ArgList &Args,
2115 const std::string &LibDir, StringRef CandidateTriple,
2116 bool NeedsBiarchSuffix) {
2117 if (TargetTriple.getOS() == llvm::Triple::Solaris) {
2118 scanLibDirForGCCTripleSolaris(TargetTriple, Args, LibDir, CandidateTriple,
2123 llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
2124 // Locations relative to the system lib directory where GCC's triple-specific
2125 // directories might reside.
2126 struct GCCLibSuffix {
2127 // Path from system lib directory to GCC triple-specific directory.
2128 std::string LibSuffix;
2129 // Path from GCC triple-specific directory back to system lib directory.
2130 // This is one '..' component per component in LibSuffix.
2131 StringRef ReversePath;
2132 // Whether this library suffix is relevant for the triple.
2135 // This is the normal place.
2136 {"gcc/" + CandidateTriple.str(), "../..", true},
2138 // Debian puts cross-compilers in gcc-cross.
2139 {"gcc-cross/" + CandidateTriple.str(), "../..", true},
2141 // The Freescale PPC SDK has the gcc libraries in
2142 // <sysroot>/usr/lib/<triple>/x.y.z so have a look there as well. Only do
2143 // this on Freescale triples, though, since some systems put a *lot* of
2144 // files in that location, not just GCC installation data.
2145 {CandidateTriple.str(), "..",
2146 TargetTriple.getVendor() == llvm::Triple::Freescale},
2148 // Natively multiarch systems sometimes put the GCC triple-specific
2149 // directory within their multiarch lib directory, resulting in the
2150 // triple appearing twice.
2151 {CandidateTriple.str() + "/gcc/" + CandidateTriple.str(), "../../..", true},
2153 // Deal with cases (on Ubuntu) where the system architecture could be i386
2154 // but the GCC target architecture could be (say) i686.
2155 // FIXME: It may be worthwhile to generalize this and look for a second
2157 {"i386-linux-gnu/gcc/" + CandidateTriple.str(), "../../..",
2158 TargetArch == llvm::Triple::x86}
2161 for (auto &Suffix : Suffixes) {
2165 StringRef LibSuffix = Suffix.LibSuffix;
2167 for (vfs::directory_iterator
2168 LI = D.getVFS().dir_begin(LibDir + "/" + LibSuffix, EC),
2170 !EC && LI != LE; LI = LI.increment(EC)) {
2171 StringRef VersionText = llvm::sys::path::filename(LI->getName());
2172 GCCVersion CandidateVersion = GCCVersion::Parse(VersionText);
2173 if (CandidateVersion.Major != -1) // Filter obviously bad entries.
2174 if (!CandidateGCCInstallPaths.insert(LI->getName()).second)
2175 continue; // Saw this path before; no need to look at it again.
2176 if (CandidateVersion.isOlderThan(4, 1, 1))
2178 if (CandidateVersion <= Version)
2181 if (!ScanGCCForMultilibs(TargetTriple, Args, LI->getName(),
2185 Version = CandidateVersion;
2186 GCCTriple.setTriple(CandidateTriple);
2187 // FIXME: We hack together the directory name here instead of
2188 // using LI to ensure stable path separators across Windows and
2190 GCCInstallPath = (LibDir + "/" + LibSuffix + "/" + VersionText).str();
2191 GCCParentLibPath = (GCCInstallPath + "/../" + Suffix.ReversePath).str();
2197 bool Generic_GCC::GCCInstallationDetector::ScanGentooGccConfig(
2198 const llvm::Triple &TargetTriple, const ArgList &Args,
2199 StringRef CandidateTriple, bool NeedsBiarchSuffix) {
2200 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> File =
2201 D.getVFS().getBufferForFile(D.SysRoot + "/etc/env.d/gcc/config-" +
2202 CandidateTriple.str());
2204 SmallVector<StringRef, 2> Lines;
2205 File.get()->getBuffer().split(Lines, "\n");
2206 for (StringRef Line : Lines) {
2208 // CURRENT=triple-version
2209 if (Line.consume_front("CURRENT=")) {
2210 const std::pair<StringRef, StringRef> ActiveVersion =
2212 // Note: Strictly speaking, we should be reading
2213 // /etc/env.d/gcc/${CURRENT} now. However, the file doesn't
2214 // contain anything new or especially useful to us.
2215 const std::string GentooPath = D.SysRoot + "/usr/lib/gcc/" +
2216 ActiveVersion.first.str() + "/" +
2217 ActiveVersion.second.str();
2218 if (D.getVFS().exists(GentooPath + "/crtbegin.o")) {
2219 if (!ScanGCCForMultilibs(TargetTriple, Args, GentooPath,
2223 Version = GCCVersion::Parse(ActiveVersion.second);
2224 GCCInstallPath = GentooPath;
2225 GCCParentLibPath = GentooPath + "/../../..";
2226 GCCTriple.setTriple(ActiveVersion.first);
2237 Generic_GCC::Generic_GCC(const Driver &D, const llvm::Triple &Triple,
2238 const ArgList &Args)
2239 : ToolChain(D, Triple, Args), GCCInstallation(D),
2240 CudaInstallation(D, Triple, Args) {
2241 getProgramPaths().push_back(getDriver().getInstalledDir());
2242 if (getDriver().getInstalledDir() != getDriver().Dir)
2243 getProgramPaths().push_back(getDriver().Dir);
2246 Generic_GCC::~Generic_GCC() {}
2248 Tool *Generic_GCC::getTool(Action::ActionClass AC) const {
2250 case Action::PreprocessJobClass:
2252 Preprocess.reset(new clang::driver::tools::gcc::Preprocessor(*this));
2253 return Preprocess.get();
2254 case Action::CompileJobClass:
2256 Compile.reset(new tools::gcc::Compiler(*this));
2257 return Compile.get();
2259 return ToolChain::getTool(AC);
2263 Tool *Generic_GCC::buildAssembler() const {
2264 return new tools::gnutools::Assembler(*this);
2267 Tool *Generic_GCC::buildLinker() const { return new tools::gcc::Linker(*this); }
2269 void Generic_GCC::printVerboseInfo(raw_ostream &OS) const {
2270 // Print the information about how we detected the GCC installation.
2271 GCCInstallation.print(OS);
2272 CudaInstallation.print(OS);
2275 bool Generic_GCC::IsUnwindTablesDefault() const {
2276 return getArch() == llvm::Triple::x86_64;
2279 bool Generic_GCC::isPICDefault() const {
2280 switch (getArch()) {
2281 case llvm::Triple::x86_64:
2282 return getTriple().isOSWindows();
2283 case llvm::Triple::ppc64:
2284 case llvm::Triple::ppc64le:
2285 return !getTriple().isOSBinFormatMachO() && !getTriple().isMacOSX();
2286 case llvm::Triple::mips64:
2287 case llvm::Triple::mips64el:
2294 bool Generic_GCC::isPIEDefault() const { return false; }
2296 bool Generic_GCC::isPICDefaultForced() const {
2297 return getArch() == llvm::Triple::x86_64 && getTriple().isOSWindows();
2300 bool Generic_GCC::IsIntegratedAssemblerDefault() const {
2301 switch (getTriple().getArch()) {
2302 case llvm::Triple::x86:
2303 case llvm::Triple::x86_64:
2304 case llvm::Triple::aarch64:
2305 case llvm::Triple::aarch64_be:
2306 case llvm::Triple::arm:
2307 case llvm::Triple::armeb:
2308 case llvm::Triple::avr:
2309 case llvm::Triple::bpfel:
2310 case llvm::Triple::bpfeb:
2311 case llvm::Triple::thumb:
2312 case llvm::Triple::thumbeb:
2313 case llvm::Triple::ppc:
2314 case llvm::Triple::ppc64:
2315 case llvm::Triple::ppc64le:
2316 case llvm::Triple::systemz:
2317 case llvm::Triple::mips:
2318 case llvm::Triple::mipsel:
2320 case llvm::Triple::mips64:
2321 case llvm::Triple::mips64el:
2322 // Enabled for Debian mips64/mips64el only. Other targets are unable to
2323 // distinguish N32 from N64.
2324 if (getTriple().getEnvironment() == llvm::Triple::GNUABI64)
2332 void Generic_GCC::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
2333 ArgStringList &CC1Args) const {
2334 if (DriverArgs.hasArg(options::OPT_nostdlibinc) ||
2335 DriverArgs.hasArg(options::OPT_nostdincxx))
2338 switch (GetCXXStdlibType(DriverArgs)) {
2339 case ToolChain::CST_Libcxx: {
2340 std::string Path = findLibCxxIncludePath();
2342 addSystemInclude(DriverArgs, CC1Args, Path);
2346 case ToolChain::CST_Libstdcxx:
2347 addLibStdCxxIncludePaths(DriverArgs, CC1Args);
2352 std::string Generic_GCC::findLibCxxIncludePath() const {
2353 // FIXME: The Linux behavior would probaby be a better approach here.
2354 return getDriver().SysRoot + "/usr/include/c++/v1";
2358 Generic_GCC::addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
2359 llvm::opt::ArgStringList &CC1Args) const {
2360 // By default, we don't assume we know where libstdc++ might be installed.
2361 // FIXME: If we have a valid GCCInstallation, use it.
2364 /// \brief Helper to add the variant paths of a libstdc++ installation.
2365 bool Generic_GCC::addLibStdCXXIncludePaths(
2366 Twine Base, Twine Suffix, StringRef GCCTriple, StringRef GCCMultiarchTriple,
2367 StringRef TargetMultiarchTriple, Twine IncludeSuffix,
2368 const ArgList &DriverArgs, ArgStringList &CC1Args) const {
2369 if (!getVFS().exists(Base + Suffix))
2372 addSystemInclude(DriverArgs, CC1Args, Base + Suffix);
2374 // The vanilla GCC layout of libstdc++ headers uses a triple subdirectory. If
2375 // that path exists or we have neither a GCC nor target multiarch triple, use
2376 // this vanilla search path.
2377 if ((GCCMultiarchTriple.empty() && TargetMultiarchTriple.empty()) ||
2378 getVFS().exists(Base + Suffix + "/" + GCCTriple + IncludeSuffix)) {
2379 addSystemInclude(DriverArgs, CC1Args,
2380 Base + Suffix + "/" + GCCTriple + IncludeSuffix);
2382 // Otherwise try to use multiarch naming schemes which have normalized the
2383 // triples and put the triple before the suffix.
2385 // GCC surprisingly uses *both* the GCC triple with a multilib suffix and
2386 // the target triple, so we support that here.
2387 addSystemInclude(DriverArgs, CC1Args,
2388 Base + "/" + GCCMultiarchTriple + Suffix + IncludeSuffix);
2389 addSystemInclude(DriverArgs, CC1Args,
2390 Base + "/" + TargetMultiarchTriple + Suffix);
2393 addSystemInclude(DriverArgs, CC1Args, Base + Suffix + "/backward");
2397 llvm::opt::DerivedArgList *
2398 Generic_GCC::TranslateArgs(const llvm::opt::DerivedArgList &Args, StringRef,
2399 Action::OffloadKind DeviceOffloadKind) const {
2401 // If this tool chain is used for an OpenMP offloading device we have to make
2402 // sure we always generate a shared library regardless of the commands the
2403 // user passed to the host. This is required because the runtime library
2404 // is required to load the device image dynamically at run time.
2405 if (DeviceOffloadKind == Action::OFK_OpenMP) {
2406 DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs());
2407 const OptTable &Opts = getDriver().getOpts();
2409 // Request the shared library. Given that these options are decided
2410 // implicitly, they do not refer to any base argument.
2411 DAL->AddFlagArg(/*BaseArg=*/nullptr, Opts.getOption(options::OPT_shared));
2412 DAL->AddFlagArg(/*BaseArg=*/nullptr, Opts.getOption(options::OPT_fPIC));
2414 // Filter all the arguments we don't care passing to the offloading
2415 // toolchain as they can mess up with the creation of a shared library.
2416 for (auto *A : Args) {
2417 switch ((options::ID)A->getOption().getID()) {
2421 case options::OPT_shared:
2422 case options::OPT_dynamic:
2423 case options::OPT_static:
2424 case options::OPT_fPIC:
2425 case options::OPT_fno_PIC:
2426 case options::OPT_fpic:
2427 case options::OPT_fno_pic:
2428 case options::OPT_fPIE:
2429 case options::OPT_fno_PIE:
2430 case options::OPT_fpie:
2431 case options::OPT_fno_pie:
2440 void Generic_ELF::anchor() {}
2442 void Generic_ELF::addClangTargetOptions(const ArgList &DriverArgs,
2443 ArgStringList &CC1Args) const {
2444 const Generic_GCC::GCCVersion &V = GCCInstallation.getVersion();
2445 bool UseInitArrayDefault =
2446 getTriple().getArch() == llvm::Triple::aarch64 ||
2447 getTriple().getArch() == llvm::Triple::aarch64_be ||
2448 (getTriple().getOS() == llvm::Triple::Linux &&
2449 (!V.isOlderThan(4, 7, 0) || getTriple().isAndroid())) ||
2450 getTriple().getOS() == llvm::Triple::NaCl ||
2451 (getTriple().getVendor() == llvm::Triple::MipsTechnologies &&
2452 !getTriple().hasEnvironment());
2454 if (DriverArgs.hasFlag(options::OPT_fuse_init_array,
2455 options::OPT_fno_use_init_array, UseInitArrayDefault))
2456 CC1Args.push_back("-fuse-init-array");