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 const auto &D = getToolChain().getDriver();
655 claimNoWarnArgs(Args);
657 ArgStringList CmdArgs;
659 llvm::Reloc::Model RelocationModel;
662 std::tie(RelocationModel, PICLevel, IsPIE) =
663 ParsePICArgs(getToolChain(), Args);
665 if (const Arg *A = Args.getLastArg(options::OPT_gz, options::OPT_gz_EQ)) {
666 if (A->getOption().getID() == options::OPT_gz) {
667 CmdArgs.push_back("-compress-debug-sections");
669 StringRef Value = A->getValue();
670 if (Value == "none") {
671 CmdArgs.push_back("-compress-debug-sections=none");
672 } else if (Value == "zlib" || Value == "zlib-gnu") {
674 Args.MakeArgString("-compress-debug-sections=" + Twine(Value)));
676 D.Diag(diag::err_drv_unsupported_option_argument)
677 << A->getOption().getName() << Value;
682 switch (getToolChain().getArch()) {
685 // Add --32/--64 to make sure we get the format we want.
686 // This is incomplete
687 case llvm::Triple::x86:
688 CmdArgs.push_back("--32");
690 case llvm::Triple::x86_64:
691 if (getToolChain().getTriple().getEnvironment() == llvm::Triple::GNUX32)
692 CmdArgs.push_back("--x32");
694 CmdArgs.push_back("--64");
696 case llvm::Triple::ppc:
697 CmdArgs.push_back("-a32");
698 CmdArgs.push_back("-mppc");
699 CmdArgs.push_back("-many");
701 case llvm::Triple::ppc64:
702 CmdArgs.push_back("-a64");
703 CmdArgs.push_back("-mppc64");
704 CmdArgs.push_back("-many");
706 case llvm::Triple::ppc64le:
707 CmdArgs.push_back("-a64");
708 CmdArgs.push_back("-mppc64");
709 CmdArgs.push_back("-many");
710 CmdArgs.push_back("-mlittle-endian");
712 case llvm::Triple::sparc:
713 case llvm::Triple::sparcel: {
714 CmdArgs.push_back("-32");
715 std::string CPU = getCPUName(Args, getToolChain().getTriple());
716 CmdArgs.push_back(sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple()));
717 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
720 case llvm::Triple::sparcv9: {
721 CmdArgs.push_back("-64");
722 std::string CPU = getCPUName(Args, getToolChain().getTriple());
723 CmdArgs.push_back(sparc::getSparcAsmModeForCPU(CPU, getToolChain().getTriple()));
724 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
727 case llvm::Triple::arm:
728 case llvm::Triple::armeb:
729 case llvm::Triple::thumb:
730 case llvm::Triple::thumbeb: {
731 const llvm::Triple &Triple2 = getToolChain().getTriple();
732 switch (Triple2.getSubArch()) {
733 case llvm::Triple::ARMSubArch_v7:
734 CmdArgs.push_back("-mfpu=neon");
736 case llvm::Triple::ARMSubArch_v8:
737 CmdArgs.push_back("-mfpu=crypto-neon-fp-armv8");
743 switch (arm::getARMFloatABI(getToolChain(), Args)) {
744 case arm::FloatABI::Invalid: llvm_unreachable("must have an ABI!");
745 case arm::FloatABI::Soft:
746 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=soft"));
748 case arm::FloatABI::SoftFP:
749 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=softfp"));
751 case arm::FloatABI::Hard:
752 CmdArgs.push_back(Args.MakeArgString("-mfloat-abi=hard"));
756 Args.AddLastArg(CmdArgs, options::OPT_march_EQ);
758 // FIXME: remove krait check when GNU tools support krait cpu
759 // for now replace it with -mcpu=cortex-a15 to avoid a lower
760 // march from being picked in the absence of a cpu flag.
762 if ((A = Args.getLastArg(options::OPT_mcpu_EQ)) &&
763 StringRef(A->getValue()).equals_lower("krait"))
764 CmdArgs.push_back("-mcpu=cortex-a15");
766 Args.AddLastArg(CmdArgs, options::OPT_mcpu_EQ);
767 Args.AddLastArg(CmdArgs, options::OPT_mfpu_EQ);
770 case llvm::Triple::aarch64:
771 case llvm::Triple::aarch64_be: {
772 Args.AddLastArg(CmdArgs, options::OPT_march_EQ);
773 Args.AddLastArg(CmdArgs, options::OPT_mcpu_EQ);
776 case llvm::Triple::mips:
777 case llvm::Triple::mipsel:
778 case llvm::Triple::mips64:
779 case llvm::Triple::mips64el: {
782 mips::getMipsCPUAndABI(Args, getToolChain().getTriple(), CPUName, ABIName);
783 ABIName = mips::getGnuCompatibleMipsABIName(ABIName);
785 CmdArgs.push_back("-march");
786 CmdArgs.push_back(CPUName.data());
788 CmdArgs.push_back("-mabi");
789 CmdArgs.push_back(ABIName.data());
791 // -mno-shared should be emitted unless -fpic, -fpie, -fPIC, -fPIE,
792 // or -mshared (not implemented) is in effect.
793 if (RelocationModel == llvm::Reloc::Static)
794 CmdArgs.push_back("-mno-shared");
796 // LLVM doesn't support -mplt yet and acts as if it is always given.
797 // However, -mplt has no effect with the N64 ABI.
798 if (ABIName != "64" && !Args.hasArg(options::OPT_mno_abicalls))
799 CmdArgs.push_back("-call_nonpic");
801 if (getToolChain().getArch() == llvm::Triple::mips ||
802 getToolChain().getArch() == llvm::Triple::mips64)
803 CmdArgs.push_back("-EB");
805 CmdArgs.push_back("-EL");
807 if (Arg *A = Args.getLastArg(options::OPT_mnan_EQ)) {
808 if (StringRef(A->getValue()) == "2008")
809 CmdArgs.push_back(Args.MakeArgString("-mnan=2008"));
812 // Add the last -mfp32/-mfpxx/-mfp64 or -mfpxx if it is enabled by default.
813 if (Arg *A = Args.getLastArg(options::OPT_mfp32, options::OPT_mfpxx,
814 options::OPT_mfp64)) {
816 A->render(Args, CmdArgs);
817 } else if (mips::shouldUseFPXX(
818 Args, getToolChain().getTriple(), CPUName, ABIName,
819 mips::getMipsFloatABI(getToolChain().getDriver(), Args)))
820 CmdArgs.push_back("-mfpxx");
822 // Pass on -mmips16 or -mno-mips16. However, the assembler equivalent of
823 // -mno-mips16 is actually -no-mips16.
825 Args.getLastArg(options::OPT_mips16, options::OPT_mno_mips16)) {
826 if (A->getOption().matches(options::OPT_mips16)) {
828 A->render(Args, CmdArgs);
831 CmdArgs.push_back("-no-mips16");
835 Args.AddLastArg(CmdArgs, options::OPT_mmicromips,
836 options::OPT_mno_micromips);
837 Args.AddLastArg(CmdArgs, options::OPT_mdsp, options::OPT_mno_dsp);
838 Args.AddLastArg(CmdArgs, options::OPT_mdspr2, options::OPT_mno_dspr2);
840 if (Arg *A = Args.getLastArg(options::OPT_mmsa, options::OPT_mno_msa)) {
841 // Do not use AddLastArg because not all versions of MIPS assembler
842 // support -mmsa / -mno-msa options.
843 if (A->getOption().matches(options::OPT_mmsa))
844 CmdArgs.push_back(Args.MakeArgString("-mmsa"));
847 Args.AddLastArg(CmdArgs, options::OPT_mhard_float,
848 options::OPT_msoft_float);
850 Args.AddLastArg(CmdArgs, options::OPT_mdouble_float,
851 options::OPT_msingle_float);
853 Args.AddLastArg(CmdArgs, options::OPT_modd_spreg,
854 options::OPT_mno_odd_spreg);
856 AddAssemblerKPIC(getToolChain(), Args, CmdArgs);
859 case llvm::Triple::systemz: {
860 // Always pass an -march option, since our default of z10 is later
861 // than the GNU assembler's default.
862 StringRef CPUName = systemz::getSystemZTargetCPU(Args);
863 CmdArgs.push_back(Args.MakeArgString("-march=" + CPUName));
868 Args.AddAllArgs(CmdArgs, options::OPT_I);
869 Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
871 CmdArgs.push_back("-o");
872 CmdArgs.push_back(Output.getFilename());
874 for (const auto &II : Inputs)
875 CmdArgs.push_back(II.getFilename());
877 const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as"));
878 C.addCommand(llvm::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
880 // Handle the debug info splitting at object creation time if we're
881 // creating an object.
882 // TODO: Currently only works on linux with newer objcopy.
883 if (Args.hasArg(options::OPT_gsplit_dwarf) &&
884 getToolChain().getTriple().isOSLinux())
885 SplitDebugInfo(getToolChain(), C, *this, JA, Args, Output,
886 SplitDebugName(Args, Inputs[0]));
890 // Filter to remove Multilibs that don't exist as a suffix to Path
891 class FilterNonExistent {
892 StringRef Base, File;
893 vfs::FileSystem &VFS;
896 FilterNonExistent(StringRef Base, StringRef File, vfs::FileSystem &VFS)
897 : Base(Base), File(File), VFS(VFS) {}
898 bool operator()(const Multilib &M) {
899 return !VFS.exists(Base + M.gccSuffix() + File);
902 } // end anonymous namespace
904 static bool isSoftFloatABI(const ArgList &Args) {
905 Arg *A = Args.getLastArg(options::OPT_msoft_float, options::OPT_mhard_float,
906 options::OPT_mfloat_abi_EQ);
910 return A->getOption().matches(options::OPT_msoft_float) ||
911 (A->getOption().matches(options::OPT_mfloat_abi_EQ) &&
912 A->getValue() == StringRef("soft"));
915 /// \p Flag must be a flag accepted by the driver with its leading '-' removed,
916 // otherwise '-print-multi-lib' will not emit them correctly.
917 static void addMultilibFlag(bool Enabled, const char *const Flag,
918 std::vector<std::string> &Flags) {
920 Flags.push_back(std::string("+") + Flag);
922 Flags.push_back(std::string("-") + Flag);
925 static bool isArmOrThumbArch(llvm::Triple::ArchType Arch) {
926 return Arch == llvm::Triple::arm || Arch == llvm::Triple::thumb;
929 static bool isMips32(llvm::Triple::ArchType Arch) {
930 return Arch == llvm::Triple::mips || Arch == llvm::Triple::mipsel;
933 static bool isMips64(llvm::Triple::ArchType Arch) {
934 return Arch == llvm::Triple::mips64 || Arch == llvm::Triple::mips64el;
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 Multilib makeMultilib(StringRef commonSuffix) {
952 return Multilib(commonSuffix, commonSuffix, commonSuffix);
955 static bool findMipsCsMultilibs(const Multilib::flags_list &Flags,
956 FilterNonExistent &NonExistent,
957 DetectedMultilibs &Result) {
958 // Check for Code Sourcery toolchain multilibs
959 MultilibSet CSMipsMultilibs;
961 auto MArchMips16 = makeMultilib("/mips16").flag("+m32").flag("+mips16");
963 auto MArchMicroMips =
964 makeMultilib("/micromips").flag("+m32").flag("+mmicromips");
966 auto MArchDefault = makeMultilib("").flag("-mips16").flag("-mmicromips");
968 auto UCLibc = makeMultilib("/uclibc").flag("+muclibc");
970 auto SoftFloat = makeMultilib("/soft-float").flag("+msoft-float");
972 auto Nan2008 = makeMultilib("/nan2008").flag("+mnan=2008");
975 makeMultilib("").flag("-msoft-float").flag("-mnan=2008");
977 auto BigEndian = makeMultilib("").flag("+EB").flag("-EL");
979 auto LittleEndian = makeMultilib("/el").flag("+EL").flag("-EB");
981 // Note that this one's osSuffix is ""
982 auto MAbi64 = makeMultilib("")
984 .includeSuffix("/64")
991 .Either(MArchMips16, MArchMicroMips, MArchDefault)
993 .Either(SoftFloat, Nan2008, DefaultFloat)
994 .FilterOut("/micromips/nan2008")
995 .FilterOut("/mips16/nan2008")
996 .Either(BigEndian, LittleEndian)
998 .FilterOut("/mips16.*/64")
999 .FilterOut("/micromips.*/64")
1000 .FilterOut(NonExistent)
1001 .setIncludeDirsCallback([](const Multilib &M) {
1002 std::vector<std::string> Dirs({"/include"});
1003 if (StringRef(M.includeSuffix()).startswith("/uclibc"))
1005 "/../../../../mips-linux-gnu/libc/uclibc/usr/include");
1007 Dirs.push_back("/../../../../mips-linux-gnu/libc/usr/include");
1012 MultilibSet DebianMipsMultilibs;
1015 Multilib().gccSuffix("/n32").includeSuffix("/n32").flag("+mabi=n32");
1017 Multilib M64 = Multilib()
1019 .includeSuffix("/64")
1024 Multilib M32 = Multilib().flag("-m64").flag("+m32").flag("-mabi=n32");
1026 DebianMipsMultilibs =
1027 MultilibSet().Either(M32, M64, MAbiN32).FilterOut(NonExistent);
1030 // Sort candidates. Toolchain that best meets the directories tree goes first.
1031 // Then select the first toolchains matches command line flags.
1032 MultilibSet *Candidates[] = {&CSMipsMultilibs, &DebianMipsMultilibs};
1033 if (CSMipsMultilibs.size() < DebianMipsMultilibs.size())
1034 std::iter_swap(Candidates, Candidates + 1);
1035 for (const MultilibSet *Candidate : Candidates) {
1036 if (Candidate->select(Flags, Result.SelectedMultilib)) {
1037 if (Candidate == &DebianMipsMultilibs)
1038 Result.BiarchSibling = Multilib();
1039 Result.Multilibs = *Candidate;
1046 static bool findMipsAndroidMultilibs(vfs::FileSystem &VFS, StringRef Path,
1047 const Multilib::flags_list &Flags,
1048 FilterNonExistent &NonExistent,
1049 DetectedMultilibs &Result) {
1051 MultilibSet AndroidMipsMultilibs =
1053 .Maybe(Multilib("/mips-r2").flag("+march=mips32r2"))
1054 .Maybe(Multilib("/mips-r6").flag("+march=mips32r6"))
1055 .FilterOut(NonExistent);
1057 MultilibSet AndroidMipselMultilibs =
1059 .Either(Multilib().flag("+march=mips32"),
1060 Multilib("/mips-r2", "", "/mips-r2").flag("+march=mips32r2"),
1061 Multilib("/mips-r6", "", "/mips-r6").flag("+march=mips32r6"))
1062 .FilterOut(NonExistent);
1064 MultilibSet AndroidMips64elMultilibs =
1067 Multilib().flag("+march=mips64r6"),
1068 Multilib("/32/mips-r1", "", "/mips-r1").flag("+march=mips32"),
1069 Multilib("/32/mips-r2", "", "/mips-r2").flag("+march=mips32r2"),
1070 Multilib("/32/mips-r6", "", "/mips-r6").flag("+march=mips32r6"))
1071 .FilterOut(NonExistent);
1073 MultilibSet *MS = &AndroidMipsMultilibs;
1074 if (VFS.exists(Path + "/mips-r6"))
1075 MS = &AndroidMipselMultilibs;
1076 else if (VFS.exists(Path + "/32"))
1077 MS = &AndroidMips64elMultilibs;
1078 if (MS->select(Flags, Result.SelectedMultilib)) {
1079 Result.Multilibs = *MS;
1085 static bool findMipsMuslMultilibs(const Multilib::flags_list &Flags,
1086 FilterNonExistent &NonExistent,
1087 DetectedMultilibs &Result) {
1088 // Musl toolchain multilibs
1089 MultilibSet MuslMipsMultilibs;
1091 auto MArchMipsR2 = makeMultilib("")
1092 .osSuffix("/mips-r2-hard-musl")
1095 .flag("+march=mips32r2");
1097 auto MArchMipselR2 = makeMultilib("/mipsel-r2-hard-musl")
1100 .flag("+march=mips32r2");
1102 MuslMipsMultilibs = MultilibSet().Either(MArchMipsR2, MArchMipselR2);
1104 // Specify the callback that computes the include directories.
1105 MuslMipsMultilibs.setIncludeDirsCallback([](const Multilib &M) {
1106 return std::vector<std::string>(
1107 {"/../sysroot" + M.osSuffix() + "/usr/include"});
1110 if (MuslMipsMultilibs.select(Flags, Result.SelectedMultilib)) {
1111 Result.Multilibs = MuslMipsMultilibs;
1117 static bool findMipsMtiMultilibs(const Multilib::flags_list &Flags,
1118 FilterNonExistent &NonExistent,
1119 DetectedMultilibs &Result) {
1120 // CodeScape MTI toolchain v1.2 and early.
1121 MultilibSet MtiMipsMultilibsV1;
1123 auto MArchMips32 = makeMultilib("/mips32")
1126 .flag("-mmicromips")
1127 .flag("+march=mips32");
1129 auto MArchMicroMips = makeMultilib("/micromips")
1132 .flag("+mmicromips");
1134 auto MArchMips64r2 = makeMultilib("/mips64r2")
1137 .flag("+march=mips64r2");
1139 auto MArchMips64 = makeMultilib("/mips64").flag("-m32").flag("+m64").flag(
1142 auto MArchDefault = makeMultilib("")
1145 .flag("-mmicromips")
1146 .flag("+march=mips32r2");
1148 auto Mips16 = makeMultilib("/mips16").flag("+mips16");
1150 auto UCLibc = makeMultilib("/uclibc").flag("+muclibc");
1153 makeMultilib("/64").flag("+mabi=n64").flag("-mabi=n32").flag("-m32");
1155 auto BigEndian = makeMultilib("").flag("+EB").flag("-EL");
1157 auto LittleEndian = makeMultilib("/el").flag("+EL").flag("-EB");
1159 auto SoftFloat = makeMultilib("/sof").flag("+msoft-float");
1161 auto Nan2008 = makeMultilib("/nan2008").flag("+mnan=2008");
1163 MtiMipsMultilibsV1 =
1165 .Either(MArchMips32, MArchMicroMips, MArchMips64r2, MArchMips64,
1169 .FilterOut("/mips64/mips16")
1170 .FilterOut("/mips64r2/mips16")
1171 .FilterOut("/micromips/mips16")
1173 .FilterOut("/micromips/64")
1174 .FilterOut("/mips32/64")
1176 .FilterOut("/mips16/64")
1177 .Either(BigEndian, LittleEndian)
1180 .FilterOut(".*sof/nan2008")
1181 .FilterOut(NonExistent)
1182 .setIncludeDirsCallback([](const Multilib &M) {
1183 std::vector<std::string> Dirs({"/include"});
1184 if (StringRef(M.includeSuffix()).startswith("/uclibc"))
1185 Dirs.push_back("/../../../../sysroot/uclibc/usr/include");
1187 Dirs.push_back("/../../../../sysroot/usr/include");
1192 // CodeScape IMG toolchain starting from v1.3.
1193 MultilibSet MtiMipsMultilibsV2;
1195 auto BeHard = makeMultilib("/mips-r2-hard")
1197 .flag("-msoft-float")
1200 auto BeSoft = makeMultilib("/mips-r2-soft")
1202 .flag("+msoft-float")
1203 .flag("-mnan=2008");
1204 auto ElHard = makeMultilib("/mipsel-r2-hard")
1206 .flag("-msoft-float")
1209 auto ElSoft = makeMultilib("/mipsel-r2-soft")
1211 .flag("+msoft-float")
1213 .flag("-mmicromips");
1214 auto BeHardNan = makeMultilib("/mips-r2-hard-nan2008")
1216 .flag("-msoft-float")
1219 auto ElHardNan = makeMultilib("/mipsel-r2-hard-nan2008")
1221 .flag("-msoft-float")
1224 .flag("-mmicromips");
1225 auto BeHardNanUclibc = makeMultilib("/mips-r2-hard-nan2008-uclibc")
1227 .flag("-msoft-float")
1230 auto ElHardNanUclibc = makeMultilib("/mipsel-r2-hard-nan2008-uclibc")
1232 .flag("-msoft-float")
1235 auto BeHardUclibc = makeMultilib("/mips-r2-hard-uclibc")
1237 .flag("-msoft-float")
1240 auto ElHardUclibc = makeMultilib("/mipsel-r2-hard-uclibc")
1242 .flag("-msoft-float")
1245 auto ElMicroHardNan = makeMultilib("/micromipsel-r2-hard-nan2008")
1247 .flag("-msoft-float")
1249 .flag("+mmicromips");
1250 auto ElMicroSoft = makeMultilib("/micromipsel-r2-soft")
1252 .flag("+msoft-float")
1254 .flag("+mmicromips");
1257 makeMultilib("/lib").osSuffix("").flag("-mabi=n32").flag("-mabi=n64");
1259 makeMultilib("/lib32").osSuffix("").flag("+mabi=n32").flag("-mabi=n64");
1261 makeMultilib("/lib64").osSuffix("").flag("-mabi=n32").flag("+mabi=n64");
1263 MtiMipsMultilibsV2 =
1265 .Either({BeHard, BeSoft, ElHard, ElSoft, BeHardNan, ElHardNan,
1266 BeHardNanUclibc, ElHardNanUclibc, BeHardUclibc,
1267 ElHardUclibc, ElMicroHardNan, ElMicroSoft})
1268 .Either(O32, N32, N64)
1269 .FilterOut(NonExistent)
1270 .setIncludeDirsCallback([](const Multilib &M) {
1271 return std::vector<std::string>({"/../../../../sysroot" +
1273 "/../usr/include"});
1275 .setFilePathsCallback([](const Multilib &M) {
1276 return std::vector<std::string>(
1277 {"/../../../../mips-mti-linux-gnu/lib" + M.gccSuffix()});
1280 for (auto Candidate : {&MtiMipsMultilibsV1, &MtiMipsMultilibsV2}) {
1281 if (Candidate->select(Flags, Result.SelectedMultilib)) {
1282 Result.Multilibs = *Candidate;
1289 static bool findMipsImgMultilibs(const Multilib::flags_list &Flags,
1290 FilterNonExistent &NonExistent,
1291 DetectedMultilibs &Result) {
1292 // CodeScape IMG toolchain v1.2 and early.
1293 MultilibSet ImgMultilibsV1;
1295 auto Mips64r6 = makeMultilib("/mips64r6").flag("+m64").flag("-m32");
1297 auto LittleEndian = makeMultilib("/el").flag("+EL").flag("-EB");
1300 makeMultilib("/64").flag("+mabi=n64").flag("-mabi=n32").flag("-m32");
1306 .Maybe(LittleEndian)
1307 .FilterOut(NonExistent)
1308 .setIncludeDirsCallback([](const Multilib &M) {
1309 return std::vector<std::string>(
1310 {"/include", "/../../../../sysroot/usr/include"});
1314 // CodeScape IMG toolchain starting from v1.3.
1315 MultilibSet ImgMultilibsV2;
1317 auto BeHard = makeMultilib("/mips-r6-hard")
1319 .flag("-msoft-float")
1320 .flag("-mmicromips");
1321 auto BeSoft = makeMultilib("/mips-r6-soft")
1323 .flag("+msoft-float")
1324 .flag("-mmicromips");
1325 auto ElHard = makeMultilib("/mipsel-r6-hard")
1327 .flag("-msoft-float")
1328 .flag("-mmicromips");
1329 auto ElSoft = makeMultilib("/mipsel-r6-soft")
1331 .flag("+msoft-float")
1332 .flag("-mmicromips");
1333 auto BeMicroHard = makeMultilib("/micromips-r6-hard")
1335 .flag("-msoft-float")
1336 .flag("+mmicromips");
1337 auto BeMicroSoft = makeMultilib("/micromips-r6-soft")
1339 .flag("+msoft-float")
1340 .flag("+mmicromips");
1341 auto ElMicroHard = makeMultilib("/micromipsel-r6-hard")
1343 .flag("-msoft-float")
1344 .flag("+mmicromips");
1345 auto ElMicroSoft = makeMultilib("/micromipsel-r6-soft")
1347 .flag("+msoft-float")
1348 .flag("+mmicromips");
1351 makeMultilib("/lib").osSuffix("").flag("-mabi=n32").flag("-mabi=n64");
1353 makeMultilib("/lib32").osSuffix("").flag("+mabi=n32").flag("-mabi=n64");
1355 makeMultilib("/lib64").osSuffix("").flag("-mabi=n32").flag("+mabi=n64");
1359 .Either({BeHard, BeSoft, ElHard, ElSoft, BeMicroHard, BeMicroSoft,
1360 ElMicroHard, ElMicroSoft})
1361 .Either(O32, N32, N64)
1362 .FilterOut(NonExistent)
1363 .setIncludeDirsCallback([](const Multilib &M) {
1364 return std::vector<std::string>({"/../../../../sysroot" +
1366 "/../usr/include"});
1368 .setFilePathsCallback([](const Multilib &M) {
1369 return std::vector<std::string>(
1370 {"/../../../../mips-img-linux-gnu/lib" + M.gccSuffix()});
1373 for (auto Candidate : {&ImgMultilibsV1, &ImgMultilibsV2}) {
1374 if (Candidate->select(Flags, Result.SelectedMultilib)) {
1375 Result.Multilibs = *Candidate;
1382 bool clang::driver::findMIPSMultilibs(const Driver &D,
1383 const llvm::Triple &TargetTriple,
1384 StringRef Path, const ArgList &Args,
1385 DetectedMultilibs &Result) {
1386 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1390 tools::mips::getMipsCPUAndABI(Args, TargetTriple, CPUName, ABIName);
1392 llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
1394 Multilib::flags_list Flags;
1395 addMultilibFlag(isMips32(TargetArch), "m32", Flags);
1396 addMultilibFlag(isMips64(TargetArch), "m64", Flags);
1397 addMultilibFlag(isMips16(Args), "mips16", Flags);
1398 addMultilibFlag(CPUName == "mips32", "march=mips32", Flags);
1399 addMultilibFlag(CPUName == "mips32r2" || CPUName == "mips32r3" ||
1400 CPUName == "mips32r5" || CPUName == "p5600",
1401 "march=mips32r2", Flags);
1402 addMultilibFlag(CPUName == "mips32r6", "march=mips32r6", Flags);
1403 addMultilibFlag(CPUName == "mips64", "march=mips64", Flags);
1404 addMultilibFlag(CPUName == "mips64r2" || CPUName == "mips64r3" ||
1405 CPUName == "mips64r5" || CPUName == "octeon",
1406 "march=mips64r2", Flags);
1407 addMultilibFlag(CPUName == "mips64r6", "march=mips64r6", Flags);
1408 addMultilibFlag(isMicroMips(Args), "mmicromips", Flags);
1409 addMultilibFlag(tools::mips::isUCLibc(Args), "muclibc", Flags);
1410 addMultilibFlag(tools::mips::isNaN2008(Args, TargetTriple), "mnan=2008",
1412 addMultilibFlag(ABIName == "n32", "mabi=n32", Flags);
1413 addMultilibFlag(ABIName == "n64", "mabi=n64", Flags);
1414 addMultilibFlag(isSoftFloatABI(Args), "msoft-float", Flags);
1415 addMultilibFlag(!isSoftFloatABI(Args), "mhard-float", Flags);
1416 addMultilibFlag(isMipsEL(TargetArch), "EL", Flags);
1417 addMultilibFlag(!isMipsEL(TargetArch), "EB", Flags);
1419 if (TargetTriple.isAndroid())
1420 return findMipsAndroidMultilibs(D.getVFS(), Path, Flags, NonExistent,
1423 if (TargetTriple.getVendor() == llvm::Triple::MipsTechnologies &&
1424 TargetTriple.getOS() == llvm::Triple::Linux &&
1425 TargetTriple.getEnvironment() == llvm::Triple::UnknownEnvironment)
1426 return findMipsMuslMultilibs(Flags, NonExistent, Result);
1428 if (TargetTriple.getVendor() == llvm::Triple::MipsTechnologies &&
1429 TargetTriple.getOS() == llvm::Triple::Linux &&
1430 TargetTriple.getEnvironment() == llvm::Triple::GNU)
1431 return findMipsMtiMultilibs(Flags, NonExistent, Result);
1433 if (TargetTriple.getVendor() == llvm::Triple::ImaginationTechnologies &&
1434 TargetTriple.getOS() == llvm::Triple::Linux &&
1435 TargetTriple.getEnvironment() == llvm::Triple::GNU)
1436 return findMipsImgMultilibs(Flags, NonExistent, Result);
1438 if (findMipsCsMultilibs(Flags, NonExistent, Result))
1441 // Fallback to the regular toolchain-tree structure.
1443 Result.Multilibs.push_back(Default);
1444 Result.Multilibs.FilterOut(NonExistent);
1446 if (Result.Multilibs.select(Flags, Result.SelectedMultilib)) {
1447 Result.BiarchSibling = Multilib();
1454 static void findAndroidArmMultilibs(const Driver &D,
1455 const llvm::Triple &TargetTriple,
1456 StringRef Path, const ArgList &Args,
1457 DetectedMultilibs &Result) {
1458 // Find multilibs with subdirectories like armv7-a, thumb, armv7-a/thumb.
1459 FilterNonExistent NonExistent(Path, "/crtbegin.o", D.getVFS());
1460 Multilib ArmV7Multilib = makeMultilib("/armv7-a")
1461 .flag("+march=armv7-a")
1463 Multilib ThumbMultilib = makeMultilib("/thumb")
1464 .flag("-march=armv7-a")
1466 Multilib ArmV7ThumbMultilib = makeMultilib("/armv7-a/thumb")
1467 .flag("+march=armv7-a")
1469 Multilib DefaultMultilib = makeMultilib("")
1470 .flag("-march=armv7-a")
1472 MultilibSet AndroidArmMultilibs =
1474 .Either(ThumbMultilib, ArmV7Multilib,
1475 ArmV7ThumbMultilib, DefaultMultilib)
1476 .FilterOut(NonExistent);
1478 Multilib::flags_list Flags;
1479 llvm::StringRef Arch = Args.getLastArgValue(options::OPT_march_EQ);
1480 bool IsArmArch = TargetTriple.getArch() == llvm::Triple::arm;
1481 bool IsThumbArch = TargetTriple.getArch() == llvm::Triple::thumb;
1482 bool IsV7SubArch = TargetTriple.getSubArch() == llvm::Triple::ARMSubArch_v7;
1483 bool IsThumbMode = IsThumbArch ||
1484 Args.hasFlag(options::OPT_mthumb, options::OPT_mno_thumb, false) ||
1485 (IsArmArch && llvm::ARM::parseArchISA(Arch) == llvm::ARM::IK_THUMB);
1486 bool IsArmV7Mode = (IsArmArch || IsThumbArch) &&
1487 (llvm::ARM::parseArchVersion(Arch) == 7 ||
1488 (IsArmArch && Arch == "" && IsV7SubArch));
1489 addMultilibFlag(IsArmV7Mode, "march=armv7-a", Flags);
1490 addMultilibFlag(IsThumbMode, "mthumb", Flags);
1492 if (AndroidArmMultilibs.select(Flags, Result.SelectedMultilib))
1493 Result.Multilibs = AndroidArmMultilibs;
1496 static bool findBiarchMultilibs(const Driver &D,
1497 const llvm::Triple &TargetTriple,
1498 StringRef Path, const ArgList &Args,
1499 bool NeedsBiarchSuffix,
1500 DetectedMultilibs &Result) {
1501 // Some versions of SUSE and Fedora on ppc64 put 32-bit libs
1502 // in what would normally be GCCInstallPath and put the 64-bit
1503 // libs in a subdirectory named 64. The simple logic we follow is that
1504 // *if* there is a subdirectory of the right name with crtbegin.o in it,
1505 // we use that. If not, and if not a biarch triple alias, we look for
1506 // crtbegin.o without the subdirectory.
1509 Multilib Alt64 = Multilib()
1511 .includeSuffix("/64")
1515 Multilib Alt32 = Multilib()
1517 .includeSuffix("/32")
1521 Multilib Altx32 = Multilib()
1523 .includeSuffix("/x32")
1528 // GCC toolchain for IAMCU doesn't have crtbegin.o, so look for libgcc.a.
1529 FilterNonExistent NonExistent(
1530 Path, TargetTriple.isOSIAMCU() ? "/libgcc.a" : "/crtbegin.o", D.getVFS());
1532 // Determine default multilib from: 32, 64, x32
1533 // Also handle cases such as 64 on 32, 32 on 64, etc.
1534 enum { UNKNOWN, WANT32, WANT64, WANTX32 } Want = UNKNOWN;
1535 const bool IsX32 = TargetTriple.getEnvironment() == llvm::Triple::GNUX32;
1536 if (TargetTriple.isArch32Bit() && !NonExistent(Alt32))
1538 else if (TargetTriple.isArch64Bit() && IsX32 && !NonExistent(Altx32))
1540 else if (TargetTriple.isArch64Bit() && !IsX32 && !NonExistent(Alt64))
1543 if (TargetTriple.isArch32Bit())
1544 Want = NeedsBiarchSuffix ? WANT64 : WANT32;
1546 Want = NeedsBiarchSuffix ? WANT64 : WANTX32;
1548 Want = NeedsBiarchSuffix ? WANT32 : WANT64;
1552 Default.flag("+m32").flag("-m64").flag("-mx32");
1553 else if (Want == WANT64)
1554 Default.flag("-m32").flag("+m64").flag("-mx32");
1555 else if (Want == WANTX32)
1556 Default.flag("-m32").flag("-m64").flag("+mx32");
1560 Result.Multilibs.push_back(Default);
1561 Result.Multilibs.push_back(Alt64);
1562 Result.Multilibs.push_back(Alt32);
1563 Result.Multilibs.push_back(Altx32);
1565 Result.Multilibs.FilterOut(NonExistent);
1567 Multilib::flags_list Flags;
1568 addMultilibFlag(TargetTriple.isArch64Bit() && !IsX32, "m64", Flags);
1569 addMultilibFlag(TargetTriple.isArch32Bit(), "m32", Flags);
1570 addMultilibFlag(TargetTriple.isArch64Bit() && IsX32, "mx32", Flags);
1572 if (!Result.Multilibs.select(Flags, Result.SelectedMultilib))
1575 if (Result.SelectedMultilib == Alt64 || Result.SelectedMultilib == Alt32 ||
1576 Result.SelectedMultilib == Altx32)
1577 Result.BiarchSibling = Default;
1582 /// Generic_GCC - A tool chain using the 'gcc' command to perform
1583 /// all subcommands; this relies on gcc translating the majority of
1584 /// command line options.
1586 /// \brief Less-than for GCCVersion, implementing a Strict Weak Ordering.
1587 bool Generic_GCC::GCCVersion::isOlderThan(int RHSMajor, int RHSMinor,
1589 StringRef RHSPatchSuffix) const {
1590 if (Major != RHSMajor)
1591 return Major < RHSMajor;
1592 if (Minor != RHSMinor)
1593 return Minor < RHSMinor;
1594 if (Patch != RHSPatch) {
1595 // Note that versions without a specified patch sort higher than those with
1602 // Otherwise just sort on the patch itself.
1603 return Patch < RHSPatch;
1605 if (PatchSuffix != RHSPatchSuffix) {
1606 // Sort empty suffixes higher.
1607 if (RHSPatchSuffix.empty())
1609 if (PatchSuffix.empty())
1612 // Provide a lexicographic sort to make this a total ordering.
1613 return PatchSuffix < RHSPatchSuffix;
1616 // The versions are equal.
1620 /// \brief Parse a GCCVersion object out of a string of text.
1622 /// This is the primary means of forming GCCVersion objects.
1624 Generic_GCC::GCCVersion Generic_GCC::GCCVersion::Parse(StringRef VersionText) {
1625 const GCCVersion BadVersion = {VersionText.str(), -1, -1, -1, "", "", ""};
1626 std::pair<StringRef, StringRef> First = VersionText.split('.');
1627 std::pair<StringRef, StringRef> Second = First.second.split('.');
1629 GCCVersion GoodVersion = {VersionText.str(), -1, -1, -1, "", "", ""};
1630 if (First.first.getAsInteger(10, GoodVersion.Major) || GoodVersion.Major < 0)
1632 GoodVersion.MajorStr = First.first.str();
1633 if (First.second.empty())
1635 if (Second.first.getAsInteger(10, GoodVersion.Minor) || GoodVersion.Minor < 0)
1637 GoodVersion.MinorStr = Second.first.str();
1639 // First look for a number prefix and parse that if present. Otherwise just
1640 // stash the entire patch string in the suffix, and leave the number
1641 // unspecified. This covers versions strings such as:
1642 // 5 (handled above)
1648 // And retains any patch number it finds.
1649 StringRef PatchText = GoodVersion.PatchSuffix = Second.second.str();
1650 if (!PatchText.empty()) {
1651 if (size_t EndNumber = PatchText.find_first_not_of("0123456789")) {
1652 // Try to parse the number and any suffix.
1653 if (PatchText.slice(0, EndNumber).getAsInteger(10, GoodVersion.Patch) ||
1654 GoodVersion.Patch < 0)
1656 GoodVersion.PatchSuffix = PatchText.substr(EndNumber);
1663 static llvm::StringRef getGCCToolchainDir(const ArgList &Args) {
1664 const Arg *A = Args.getLastArg(clang::driver::options::OPT_gcc_toolchain);
1666 return A->getValue();
1667 return GCC_INSTALL_PREFIX;
1670 /// \brief Initialize a GCCInstallationDetector from the driver.
1672 /// This performs all of the autodetection and sets up the various paths.
1673 /// Once constructed, a GCCInstallationDetector is essentially immutable.
1675 /// FIXME: We shouldn't need an explicit TargetTriple parameter here, and
1676 /// should instead pull the target out of the driver. This is currently
1677 /// necessary because the driver doesn't store the final version of the target
1679 void Generic_GCC::GCCInstallationDetector::init(
1680 const llvm::Triple &TargetTriple, const ArgList &Args,
1681 ArrayRef<std::string> ExtraTripleAliases) {
1682 llvm::Triple BiarchVariantTriple = TargetTriple.isArch32Bit()
1683 ? TargetTriple.get64BitArchVariant()
1684 : TargetTriple.get32BitArchVariant();
1685 // The library directories which may contain GCC installations.
1686 SmallVector<StringRef, 4> CandidateLibDirs, CandidateBiarchLibDirs;
1687 // The compatible GCC triples for this particular architecture.
1688 SmallVector<StringRef, 16> CandidateTripleAliases;
1689 SmallVector<StringRef, 16> CandidateBiarchTripleAliases;
1690 CollectLibDirsAndTriples(TargetTriple, BiarchVariantTriple, CandidateLibDirs,
1691 CandidateTripleAliases, CandidateBiarchLibDirs,
1692 CandidateBiarchTripleAliases);
1694 // Compute the set of prefixes for our search.
1695 SmallVector<std::string, 8> Prefixes(D.PrefixDirs.begin(),
1696 D.PrefixDirs.end());
1698 StringRef GCCToolchainDir = getGCCToolchainDir(Args);
1699 if (GCCToolchainDir != "") {
1700 if (GCCToolchainDir.back() == '/')
1701 GCCToolchainDir = GCCToolchainDir.drop_back(); // remove the /
1703 Prefixes.push_back(GCCToolchainDir);
1705 // If we have a SysRoot, try that first.
1706 if (!D.SysRoot.empty()) {
1707 Prefixes.push_back(D.SysRoot);
1708 Prefixes.push_back(D.SysRoot + "/usr");
1711 // Then look for gcc installed alongside clang.
1712 Prefixes.push_back(D.InstalledDir + "/..");
1714 // Then look for distribution supplied gcc installations.
1715 if (D.SysRoot.empty()) {
1716 // Look for RHEL devtoolsets.
1717 Prefixes.push_back("/opt/rh/devtoolset-6/root/usr");
1718 Prefixes.push_back("/opt/rh/devtoolset-4/root/usr");
1719 Prefixes.push_back("/opt/rh/devtoolset-3/root/usr");
1720 Prefixes.push_back("/opt/rh/devtoolset-2/root/usr");
1721 // And finally in /usr.
1722 Prefixes.push_back("/usr");
1726 // Try to respect gcc-config on Gentoo. However, do that only
1727 // if --gcc-toolchain is not provided or equal to the Gentoo install
1728 // in /usr. This avoids accidentally enforcing the system GCC version
1729 // when using a custom toolchain.
1730 if (GCCToolchainDir == "" || GCCToolchainDir == D.SysRoot + "/usr") {
1731 for (StringRef CandidateTriple : ExtraTripleAliases) {
1732 if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple))
1735 for (StringRef CandidateTriple : CandidateTripleAliases) {
1736 if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple))
1739 for (StringRef CandidateTriple : CandidateBiarchTripleAliases) {
1740 if (ScanGentooGccConfig(TargetTriple, Args, CandidateTriple, true))
1745 // Loop over the various components which exist and select the best GCC
1746 // installation available. GCC installs are ranked by version number.
1747 Version = GCCVersion::Parse("0.0.0");
1748 for (const std::string &Prefix : Prefixes) {
1749 if (!D.getVFS().exists(Prefix))
1751 for (StringRef Suffix : CandidateLibDirs) {
1752 const std::string LibDir = Prefix + Suffix.str();
1753 if (!D.getVFS().exists(LibDir))
1755 for (StringRef Candidate : ExtraTripleAliases) // Try these first.
1756 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate);
1757 for (StringRef Candidate : CandidateTripleAliases)
1758 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate);
1760 for (StringRef Suffix : CandidateBiarchLibDirs) {
1761 const std::string LibDir = Prefix + Suffix.str();
1762 if (!D.getVFS().exists(LibDir))
1764 for (StringRef Candidate : CandidateBiarchTripleAliases)
1765 ScanLibDirForGCCTriple(TargetTriple, Args, LibDir, Candidate,
1766 /*NeedsBiarchSuffix=*/ true);
1771 void Generic_GCC::GCCInstallationDetector::print(raw_ostream &OS) const {
1772 for (const auto &InstallPath : CandidateGCCInstallPaths)
1773 OS << "Found candidate GCC installation: " << InstallPath << "\n";
1775 if (!GCCInstallPath.empty())
1776 OS << "Selected GCC installation: " << GCCInstallPath << "\n";
1778 for (const auto &Multilib : Multilibs)
1779 OS << "Candidate multilib: " << Multilib << "\n";
1781 if (Multilibs.size() != 0 || !SelectedMultilib.isDefault())
1782 OS << "Selected multilib: " << SelectedMultilib << "\n";
1785 bool Generic_GCC::GCCInstallationDetector::getBiarchSibling(Multilib &M) const {
1786 if (BiarchSibling.hasValue()) {
1787 M = BiarchSibling.getValue();
1793 /*static*/ void Generic_GCC::GCCInstallationDetector::CollectLibDirsAndTriples(
1794 const llvm::Triple &TargetTriple, const llvm::Triple &BiarchTriple,
1795 SmallVectorImpl<StringRef> &LibDirs,
1796 SmallVectorImpl<StringRef> &TripleAliases,
1797 SmallVectorImpl<StringRef> &BiarchLibDirs,
1798 SmallVectorImpl<StringRef> &BiarchTripleAliases) {
1799 // Declare a bunch of static data sets that we'll select between below. These
1800 // are specifically designed to always refer to string literals to avoid any
1801 // lifetime or initialization issues.
1802 static const char *const AArch64LibDirs[] = {"/lib64", "/lib"};
1803 static const char *const AArch64Triples[] = {
1804 "aarch64-none-linux-gnu", "aarch64-linux-gnu", "aarch64-linux-android",
1805 "aarch64-redhat-linux", "aarch64-suse-linux"};
1806 static const char *const AArch64beLibDirs[] = {"/lib"};
1807 static const char *const AArch64beTriples[] = {"aarch64_be-none-linux-gnu",
1808 "aarch64_be-linux-gnu"};
1810 static const char *const ARMLibDirs[] = {"/lib"};
1811 static const char *const ARMTriples[] = {"arm-linux-gnueabi",
1812 "arm-linux-androideabi"};
1813 static const char *const ARMHFTriples[] = {"arm-linux-gnueabihf",
1814 "armv7hl-redhat-linux-gnueabi",
1815 "armv6hl-suse-linux-gnueabi",
1816 "armv7hl-suse-linux-gnueabi"};
1817 static const char *const ARMebLibDirs[] = {"/lib"};
1818 static const char *const ARMebTriples[] = {"armeb-linux-gnueabi",
1819 "armeb-linux-androideabi"};
1820 static const char *const ARMebHFTriples[] = {
1821 "armeb-linux-gnueabihf", "armebv7hl-redhat-linux-gnueabi"};
1823 static const char *const X86_64LibDirs[] = {"/lib64", "/lib"};
1824 static const char *const X86_64Triples[] = {
1825 "x86_64-linux-gnu", "x86_64-unknown-linux-gnu",
1826 "x86_64-pc-linux-gnu", "x86_64-redhat-linux6E",
1827 "x86_64-redhat-linux", "x86_64-suse-linux",
1828 "x86_64-manbo-linux-gnu", "x86_64-linux-gnu",
1829 "x86_64-slackware-linux", "x86_64-linux-android",
1830 "x86_64-unknown-linux"};
1831 static const char *const X32LibDirs[] = {"/libx32"};
1832 static const char *const X86LibDirs[] = {"/lib32", "/lib"};
1833 static const char *const X86Triples[] = {
1834 "i686-linux-gnu", "i686-pc-linux-gnu", "i486-linux-gnu",
1835 "i386-linux-gnu", "i386-redhat-linux6E", "i686-redhat-linux",
1836 "i586-redhat-linux", "i386-redhat-linux", "i586-suse-linux",
1837 "i486-slackware-linux", "i686-montavista-linux", "i686-linux-android",
1840 static const char *const MIPSLibDirs[] = {"/lib"};
1841 static const char *const MIPSTriples[] = {"mips-linux-gnu", "mips-mti-linux",
1842 "mips-mti-linux-gnu",
1843 "mips-img-linux-gnu"};
1844 static const char *const MIPSELLibDirs[] = {"/lib"};
1845 static const char *const MIPSELTriples[] = {"mipsel-linux-gnu",
1846 "mips-img-linux-gnu"};
1848 static const char *const MIPS64LibDirs[] = {"/lib64", "/lib"};
1849 static const char *const MIPS64Triples[] = {
1850 "mips64-linux-gnu", "mips-mti-linux-gnu", "mips-img-linux-gnu",
1851 "mips64-linux-gnuabi64"};
1852 static const char *const MIPS64ELLibDirs[] = {"/lib64", "/lib"};
1853 static const char *const MIPS64ELTriples[] = {
1854 "mips64el-linux-gnu", "mips-mti-linux-gnu", "mips-img-linux-gnu",
1855 "mips64el-linux-gnuabi64"};
1857 static const char *const MIPSELAndroidLibDirs[] = {"/lib", "/libr2",
1859 static const char *const MIPSELAndroidTriples[] = {"mipsel-linux-android"};
1860 static const char *const MIPS64ELAndroidLibDirs[] = {"/lib64", "/lib",
1861 "/libr2", "/libr6"};
1862 static const char *const MIPS64ELAndroidTriples[] = {
1863 "mips64el-linux-android"};
1865 static const char *const PPCLibDirs[] = {"/lib32", "/lib"};
1866 static const char *const PPCTriples[] = {
1867 "powerpc-linux-gnu", "powerpc-unknown-linux-gnu", "powerpc-linux-gnuspe",
1868 "powerpc-suse-linux", "powerpc-montavista-linuxspe"};
1869 static const char *const PPC64LibDirs[] = {"/lib64", "/lib"};
1870 static const char *const PPC64Triples[] = {
1871 "powerpc64-linux-gnu", "powerpc64-unknown-linux-gnu",
1872 "powerpc64-suse-linux", "ppc64-redhat-linux"};
1873 static const char *const PPC64LELibDirs[] = {"/lib64", "/lib"};
1874 static const char *const PPC64LETriples[] = {
1875 "powerpc64le-linux-gnu", "powerpc64le-unknown-linux-gnu",
1876 "powerpc64le-suse-linux", "ppc64le-redhat-linux"};
1878 static const char *const SPARCv8LibDirs[] = {"/lib32", "/lib"};
1879 static const char *const SPARCv8Triples[] = {"sparc-linux-gnu",
1880 "sparcv8-linux-gnu"};
1881 static const char *const SPARCv9LibDirs[] = {"/lib64", "/lib"};
1882 static const char *const SPARCv9Triples[] = {"sparc64-linux-gnu",
1883 "sparcv9-linux-gnu"};
1885 static const char *const SystemZLibDirs[] = {"/lib64", "/lib"};
1886 static const char *const SystemZTriples[] = {
1887 "s390x-linux-gnu", "s390x-unknown-linux-gnu", "s390x-ibm-linux-gnu",
1888 "s390x-suse-linux", "s390x-redhat-linux"};
1891 static const char *const SolarisSPARCLibDirs[] = {"/gcc"};
1892 static const char *const SolarisSPARCTriples[] = {"sparc-sun-solaris2.11",
1893 "i386-pc-solaris2.11"};
1898 if (TargetTriple.getOS() == llvm::Triple::Solaris) {
1899 LibDirs.append(begin(SolarisSPARCLibDirs), end(SolarisSPARCLibDirs));
1900 TripleAliases.append(begin(SolarisSPARCTriples), end(SolarisSPARCTriples));
1904 switch (TargetTriple.getArch()) {
1905 case llvm::Triple::aarch64:
1906 LibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
1907 TripleAliases.append(begin(AArch64Triples), end(AArch64Triples));
1908 BiarchLibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
1909 BiarchTripleAliases.append(begin(AArch64Triples), end(AArch64Triples));
1911 case llvm::Triple::aarch64_be:
1912 LibDirs.append(begin(AArch64beLibDirs), end(AArch64beLibDirs));
1913 TripleAliases.append(begin(AArch64beTriples), end(AArch64beTriples));
1914 BiarchLibDirs.append(begin(AArch64beLibDirs), end(AArch64beLibDirs));
1915 BiarchTripleAliases.append(begin(AArch64beTriples), end(AArch64beTriples));
1917 case llvm::Triple::arm:
1918 case llvm::Triple::thumb:
1919 LibDirs.append(begin(ARMLibDirs), end(ARMLibDirs));
1920 if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF) {
1921 TripleAliases.append(begin(ARMHFTriples), end(ARMHFTriples));
1923 TripleAliases.append(begin(ARMTriples), end(ARMTriples));
1926 case llvm::Triple::armeb:
1927 case llvm::Triple::thumbeb:
1928 LibDirs.append(begin(ARMebLibDirs), end(ARMebLibDirs));
1929 if (TargetTriple.getEnvironment() == llvm::Triple::GNUEABIHF) {
1930 TripleAliases.append(begin(ARMebHFTriples), end(ARMebHFTriples));
1932 TripleAliases.append(begin(ARMebTriples), end(ARMebTriples));
1935 case llvm::Triple::x86_64:
1936 LibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
1937 TripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
1938 // x32 is always available when x86_64 is available, so adding it as
1939 // secondary arch with x86_64 triples
1940 if (TargetTriple.getEnvironment() == llvm::Triple::GNUX32) {
1941 BiarchLibDirs.append(begin(X32LibDirs), end(X32LibDirs));
1942 BiarchTripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
1944 BiarchLibDirs.append(begin(X86LibDirs), end(X86LibDirs));
1945 BiarchTripleAliases.append(begin(X86Triples), end(X86Triples));
1948 case llvm::Triple::x86:
1949 LibDirs.append(begin(X86LibDirs), end(X86LibDirs));
1950 // MCU toolchain is 32 bit only and its triple alias is TargetTriple
1951 // itself, which will be appended below.
1952 if (!TargetTriple.isOSIAMCU()) {
1953 TripleAliases.append(begin(X86Triples), end(X86Triples));
1954 BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
1955 BiarchTripleAliases.append(begin(X86_64Triples), end(X86_64Triples));
1958 case llvm::Triple::mips:
1959 LibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs));
1960 TripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
1961 BiarchLibDirs.append(begin(MIPS64LibDirs), end(MIPS64LibDirs));
1962 BiarchTripleAliases.append(begin(MIPS64Triples), end(MIPS64Triples));
1964 case llvm::Triple::mipsel:
1965 if (TargetTriple.isAndroid()) {
1966 LibDirs.append(begin(MIPSELAndroidLibDirs), end(MIPSELAndroidLibDirs));
1967 TripleAliases.append(begin(MIPSELAndroidTriples),
1968 end(MIPSELAndroidTriples));
1969 BiarchLibDirs.append(begin(MIPS64ELAndroidLibDirs),
1970 end(MIPS64ELAndroidLibDirs));
1971 BiarchTripleAliases.append(begin(MIPS64ELAndroidTriples),
1972 end(MIPS64ELAndroidTriples));
1975 LibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs));
1976 TripleAliases.append(begin(MIPSELTriples), end(MIPSELTriples));
1977 TripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
1978 BiarchLibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs));
1979 BiarchTripleAliases.append(begin(MIPS64ELTriples), end(MIPS64ELTriples));
1982 case llvm::Triple::mips64:
1983 LibDirs.append(begin(MIPS64LibDirs), end(MIPS64LibDirs));
1984 TripleAliases.append(begin(MIPS64Triples), end(MIPS64Triples));
1985 BiarchLibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs));
1986 BiarchTripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
1988 case llvm::Triple::mips64el:
1989 if (TargetTriple.isAndroid()) {
1990 LibDirs.append(begin(MIPS64ELAndroidLibDirs),
1991 end(MIPS64ELAndroidLibDirs));
1992 TripleAliases.append(begin(MIPS64ELAndroidTriples),
1993 end(MIPS64ELAndroidTriples));
1994 BiarchLibDirs.append(begin(MIPSELAndroidLibDirs),
1995 end(MIPSELAndroidLibDirs));
1996 BiarchTripleAliases.append(begin(MIPSELAndroidTriples),
1997 end(MIPSELAndroidTriples));
2000 LibDirs.append(begin(MIPS64ELLibDirs), end(MIPS64ELLibDirs));
2001 TripleAliases.append(begin(MIPS64ELTriples), end(MIPS64ELTriples));
2002 BiarchLibDirs.append(begin(MIPSELLibDirs), end(MIPSELLibDirs));
2003 BiarchTripleAliases.append(begin(MIPSELTriples), end(MIPSELTriples));
2004 BiarchTripleAliases.append(begin(MIPSTriples), end(MIPSTriples));
2007 case llvm::Triple::ppc:
2008 LibDirs.append(begin(PPCLibDirs), end(PPCLibDirs));
2009 TripleAliases.append(begin(PPCTriples), end(PPCTriples));
2010 BiarchLibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs));
2011 BiarchTripleAliases.append(begin(PPC64Triples), end(PPC64Triples));
2013 case llvm::Triple::ppc64:
2014 LibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs));
2015 TripleAliases.append(begin(PPC64Triples), end(PPC64Triples));
2016 BiarchLibDirs.append(begin(PPCLibDirs), end(PPCLibDirs));
2017 BiarchTripleAliases.append(begin(PPCTriples), end(PPCTriples));
2019 case llvm::Triple::ppc64le:
2020 LibDirs.append(begin(PPC64LELibDirs), end(PPC64LELibDirs));
2021 TripleAliases.append(begin(PPC64LETriples), end(PPC64LETriples));
2023 case llvm::Triple::sparc:
2024 case llvm::Triple::sparcel:
2025 LibDirs.append(begin(SPARCv8LibDirs), end(SPARCv8LibDirs));
2026 TripleAliases.append(begin(SPARCv8Triples), end(SPARCv8Triples));
2027 BiarchLibDirs.append(begin(SPARCv9LibDirs), end(SPARCv9LibDirs));
2028 BiarchTripleAliases.append(begin(SPARCv9Triples), end(SPARCv9Triples));
2030 case llvm::Triple::sparcv9:
2031 LibDirs.append(begin(SPARCv9LibDirs), end(SPARCv9LibDirs));
2032 TripleAliases.append(begin(SPARCv9Triples), end(SPARCv9Triples));
2033 BiarchLibDirs.append(begin(SPARCv8LibDirs), end(SPARCv8LibDirs));
2034 BiarchTripleAliases.append(begin(SPARCv8Triples), end(SPARCv8Triples));
2036 case llvm::Triple::systemz:
2037 LibDirs.append(begin(SystemZLibDirs), end(SystemZLibDirs));
2038 TripleAliases.append(begin(SystemZTriples), end(SystemZTriples));
2041 // By default, just rely on the standard lib directories and the original
2046 // Always append the drivers target triple to the end, in case it doesn't
2047 // match any of our aliases.
2048 TripleAliases.push_back(TargetTriple.str());
2050 // Also include the multiarch variant if it's different.
2051 if (TargetTriple.str() != BiarchTriple.str())
2052 BiarchTripleAliases.push_back(BiarchTriple.str());
2055 void Generic_GCC::GCCInstallationDetector::scanLibDirForGCCTripleSolaris(
2056 const llvm::Triple &TargetArch, const llvm::opt::ArgList &Args,
2057 const std::string &LibDir, StringRef CandidateTriple,
2058 bool NeedsBiarchSuffix) {
2059 // Solaris is a special case. The GCC installation is under
2060 // /usr/gcc/<major>.<minor>/lib/gcc/<triple>/<major>.<minor>.<patch>/, so we
2061 // need to iterate twice.
2063 for (vfs::directory_iterator LI = D.getVFS().dir_begin(LibDir, EC), LE;
2064 !EC && LI != LE; LI = LI.increment(EC)) {
2065 StringRef VersionText = llvm::sys::path::filename(LI->getName());
2066 GCCVersion CandidateVersion = GCCVersion::Parse(VersionText);
2068 if (CandidateVersion.Major != -1) // Filter obviously bad entries.
2069 if (!CandidateGCCInstallPaths.insert(LI->getName()).second)
2070 continue; // Saw this path before; no need to look at it again.
2071 if (CandidateVersion.isOlderThan(4, 1, 1))
2073 if (CandidateVersion <= Version)
2077 LibDir + "/" + VersionText.str() + "/lib/gcc/" + CandidateTriple.str();
2078 if (!D.getVFS().exists(GCCInstallPath))
2081 // If we make it here there has to be at least one GCC version, let's just
2082 // use the latest one.
2083 std::error_code EEC;
2084 for (vfs::directory_iterator
2085 LLI = D.getVFS().dir_begin(GCCInstallPath, EEC),
2087 !EEC && LLI != LLE; LLI = LLI.increment(EEC)) {
2089 StringRef SubVersionText = llvm::sys::path::filename(LLI->getName());
2090 GCCVersion CandidateSubVersion = GCCVersion::Parse(SubVersionText);
2092 if (CandidateSubVersion > Version)
2093 Version = CandidateSubVersion;
2096 GCCTriple.setTriple(CandidateTriple);
2098 GCCInstallPath += "/" + Version.Text;
2099 GCCParentLibPath = GCCInstallPath + "/../../../../";
2105 bool Generic_GCC::GCCInstallationDetector::ScanGCCForMultilibs(
2106 const llvm::Triple &TargetTriple, const ArgList &Args,
2107 StringRef Path, bool NeedsBiarchSuffix) {
2108 llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
2109 DetectedMultilibs Detected;
2111 // Android standalone toolchain could have multilibs for ARM and Thumb.
2112 // Debian mips multilibs behave more like the rest of the biarch ones,
2113 // so handle them there
2114 if (isArmOrThumbArch(TargetArch) && TargetTriple.isAndroid()) {
2115 // It should also work without multilibs in a simplified toolchain.
2116 findAndroidArmMultilibs(D, TargetTriple, Path, Args, Detected);
2117 } else if (tools::isMipsArch(TargetArch)) {
2118 if (!findMIPSMultilibs(D, TargetTriple, Path, Args, Detected))
2120 } else if (!findBiarchMultilibs(D, TargetTriple, Path, Args,
2121 NeedsBiarchSuffix, Detected)) {
2125 Multilibs = Detected.Multilibs;
2126 SelectedMultilib = Detected.SelectedMultilib;
2127 BiarchSibling = Detected.BiarchSibling;
2132 void Generic_GCC::GCCInstallationDetector::ScanLibDirForGCCTriple(
2133 const llvm::Triple &TargetTriple, const ArgList &Args,
2134 const std::string &LibDir, StringRef CandidateTriple,
2135 bool NeedsBiarchSuffix) {
2136 if (TargetTriple.getOS() == llvm::Triple::Solaris) {
2137 scanLibDirForGCCTripleSolaris(TargetTriple, Args, LibDir, CandidateTriple,
2142 llvm::Triple::ArchType TargetArch = TargetTriple.getArch();
2143 // Locations relative to the system lib directory where GCC's triple-specific
2144 // directories might reside.
2145 struct GCCLibSuffix {
2146 // Path from system lib directory to GCC triple-specific directory.
2147 std::string LibSuffix;
2148 // Path from GCC triple-specific directory back to system lib directory.
2149 // This is one '..' component per component in LibSuffix.
2150 StringRef ReversePath;
2151 // Whether this library suffix is relevant for the triple.
2154 // This is the normal place.
2155 {"gcc/" + CandidateTriple.str(), "../..", true},
2157 // Debian puts cross-compilers in gcc-cross.
2158 {"gcc-cross/" + CandidateTriple.str(), "../..", true},
2160 // The Freescale PPC SDK has the gcc libraries in
2161 // <sysroot>/usr/lib/<triple>/x.y.z so have a look there as well. Only do
2162 // this on Freescale triples, though, since some systems put a *lot* of
2163 // files in that location, not just GCC installation data.
2164 {CandidateTriple.str(), "..",
2165 TargetTriple.getVendor() == llvm::Triple::Freescale},
2167 // Natively multiarch systems sometimes put the GCC triple-specific
2168 // directory within their multiarch lib directory, resulting in the
2169 // triple appearing twice.
2170 {CandidateTriple.str() + "/gcc/" + CandidateTriple.str(), "../../..", true},
2172 // Deal with cases (on Ubuntu) where the system architecture could be i386
2173 // but the GCC target architecture could be (say) i686.
2174 // FIXME: It may be worthwhile to generalize this and look for a second
2176 {"i386-linux-gnu/gcc/" + CandidateTriple.str(), "../../..",
2177 TargetArch == llvm::Triple::x86}
2180 for (auto &Suffix : Suffixes) {
2184 StringRef LibSuffix = Suffix.LibSuffix;
2186 for (vfs::directory_iterator
2187 LI = D.getVFS().dir_begin(LibDir + "/" + LibSuffix, EC),
2189 !EC && LI != LE; LI = LI.increment(EC)) {
2190 StringRef VersionText = llvm::sys::path::filename(LI->getName());
2191 GCCVersion CandidateVersion = GCCVersion::Parse(VersionText);
2192 if (CandidateVersion.Major != -1) // Filter obviously bad entries.
2193 if (!CandidateGCCInstallPaths.insert(LI->getName()).second)
2194 continue; // Saw this path before; no need to look at it again.
2195 if (CandidateVersion.isOlderThan(4, 1, 1))
2197 if (CandidateVersion <= Version)
2200 if (!ScanGCCForMultilibs(TargetTriple, Args, LI->getName(),
2204 Version = CandidateVersion;
2205 GCCTriple.setTriple(CandidateTriple);
2206 // FIXME: We hack together the directory name here instead of
2207 // using LI to ensure stable path separators across Windows and
2209 GCCInstallPath = (LibDir + "/" + LibSuffix + "/" + VersionText).str();
2210 GCCParentLibPath = (GCCInstallPath + "/../" + Suffix.ReversePath).str();
2216 bool Generic_GCC::GCCInstallationDetector::ScanGentooGccConfig(
2217 const llvm::Triple &TargetTriple, const ArgList &Args,
2218 StringRef CandidateTriple, bool NeedsBiarchSuffix) {
2219 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> File =
2220 D.getVFS().getBufferForFile(D.SysRoot + "/etc/env.d/gcc/config-" +
2221 CandidateTriple.str());
2223 SmallVector<StringRef, 2> Lines;
2224 File.get()->getBuffer().split(Lines, "\n");
2225 for (StringRef Line : Lines) {
2227 // CURRENT=triple-version
2228 if (Line.consume_front("CURRENT=")) {
2229 const std::pair<StringRef, StringRef> ActiveVersion =
2231 // Note: Strictly speaking, we should be reading
2232 // /etc/env.d/gcc/${CURRENT} now. However, the file doesn't
2233 // contain anything new or especially useful to us.
2234 const std::string GentooPath = D.SysRoot + "/usr/lib/gcc/" +
2235 ActiveVersion.first.str() + "/" +
2236 ActiveVersion.second.str();
2237 if (D.getVFS().exists(GentooPath + "/crtbegin.o")) {
2238 if (!ScanGCCForMultilibs(TargetTriple, Args, GentooPath,
2242 Version = GCCVersion::Parse(ActiveVersion.second);
2243 GCCInstallPath = GentooPath;
2244 GCCParentLibPath = GentooPath + "/../../..";
2245 GCCTriple.setTriple(ActiveVersion.first);
2256 Generic_GCC::Generic_GCC(const Driver &D, const llvm::Triple &Triple,
2257 const ArgList &Args)
2258 : ToolChain(D, Triple, Args), GCCInstallation(D),
2259 CudaInstallation(D, Triple, Args) {
2260 getProgramPaths().push_back(getDriver().getInstalledDir());
2261 if (getDriver().getInstalledDir() != getDriver().Dir)
2262 getProgramPaths().push_back(getDriver().Dir);
2265 Generic_GCC::~Generic_GCC() {}
2267 Tool *Generic_GCC::getTool(Action::ActionClass AC) const {
2269 case Action::PreprocessJobClass:
2271 Preprocess.reset(new clang::driver::tools::gcc::Preprocessor(*this));
2272 return Preprocess.get();
2273 case Action::CompileJobClass:
2275 Compile.reset(new tools::gcc::Compiler(*this));
2276 return Compile.get();
2278 return ToolChain::getTool(AC);
2282 Tool *Generic_GCC::buildAssembler() const {
2283 return new tools::gnutools::Assembler(*this);
2286 Tool *Generic_GCC::buildLinker() const { return new tools::gcc::Linker(*this); }
2288 void Generic_GCC::printVerboseInfo(raw_ostream &OS) const {
2289 // Print the information about how we detected the GCC installation.
2290 GCCInstallation.print(OS);
2291 CudaInstallation.print(OS);
2294 bool Generic_GCC::IsUnwindTablesDefault() const {
2295 return getArch() == llvm::Triple::x86_64;
2298 bool Generic_GCC::isPICDefault() const {
2299 switch (getArch()) {
2300 case llvm::Triple::x86_64:
2301 return getTriple().isOSWindows();
2302 case llvm::Triple::ppc64:
2303 case llvm::Triple::ppc64le:
2304 return !getTriple().isOSBinFormatMachO() && !getTriple().isMacOSX();
2305 case llvm::Triple::mips64:
2306 case llvm::Triple::mips64el:
2313 bool Generic_GCC::isPIEDefault() const { return false; }
2315 bool Generic_GCC::isPICDefaultForced() const {
2316 return getArch() == llvm::Triple::x86_64 && getTriple().isOSWindows();
2319 bool Generic_GCC::IsIntegratedAssemblerDefault() const {
2320 switch (getTriple().getArch()) {
2321 case llvm::Triple::x86:
2322 case llvm::Triple::x86_64:
2323 case llvm::Triple::aarch64:
2324 case llvm::Triple::aarch64_be:
2325 case llvm::Triple::arm:
2326 case llvm::Triple::armeb:
2327 case llvm::Triple::avr:
2328 case llvm::Triple::bpfel:
2329 case llvm::Triple::bpfeb:
2330 case llvm::Triple::thumb:
2331 case llvm::Triple::thumbeb:
2332 case llvm::Triple::ppc:
2333 case llvm::Triple::ppc64:
2334 case llvm::Triple::ppc64le:
2335 case llvm::Triple::systemz:
2336 case llvm::Triple::mips:
2337 case llvm::Triple::mipsel:
2339 case llvm::Triple::mips64:
2340 case llvm::Triple::mips64el:
2341 // Enabled for Debian and Android mips64/mipsel, as they can precisely
2342 // identify the ABI in use (Debian) or only use N64 for MIPS64 (Android).
2343 // Other targets are unable to distinguish N32 from N64.
2344 if (getTriple().getEnvironment() == llvm::Triple::GNUABI64 ||
2345 getTriple().isAndroid())
2353 void Generic_GCC::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
2354 ArgStringList &CC1Args) const {
2355 if (DriverArgs.hasArg(options::OPT_nostdlibinc) ||
2356 DriverArgs.hasArg(options::OPT_nostdincxx))
2359 switch (GetCXXStdlibType(DriverArgs)) {
2360 case ToolChain::CST_Libcxx: {
2361 std::string Path = findLibCxxIncludePath();
2363 addSystemInclude(DriverArgs, CC1Args, Path);
2367 case ToolChain::CST_Libstdcxx:
2368 addLibStdCxxIncludePaths(DriverArgs, CC1Args);
2373 std::string Generic_GCC::findLibCxxIncludePath() const {
2374 // FIXME: The Linux behavior would probaby be a better approach here.
2375 return getDriver().SysRoot + "/usr/include/c++/v1";
2379 Generic_GCC::addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
2380 llvm::opt::ArgStringList &CC1Args) const {
2381 // By default, we don't assume we know where libstdc++ might be installed.
2382 // FIXME: If we have a valid GCCInstallation, use it.
2385 /// \brief Helper to add the variant paths of a libstdc++ installation.
2386 bool Generic_GCC::addLibStdCXXIncludePaths(
2387 Twine Base, Twine Suffix, StringRef GCCTriple, StringRef GCCMultiarchTriple,
2388 StringRef TargetMultiarchTriple, Twine IncludeSuffix,
2389 const ArgList &DriverArgs, ArgStringList &CC1Args) const {
2390 if (!getVFS().exists(Base + Suffix))
2393 addSystemInclude(DriverArgs, CC1Args, Base + Suffix);
2395 // The vanilla GCC layout of libstdc++ headers uses a triple subdirectory. If
2396 // that path exists or we have neither a GCC nor target multiarch triple, use
2397 // this vanilla search path.
2398 if ((GCCMultiarchTriple.empty() && TargetMultiarchTriple.empty()) ||
2399 getVFS().exists(Base + Suffix + "/" + GCCTriple + IncludeSuffix)) {
2400 addSystemInclude(DriverArgs, CC1Args,
2401 Base + Suffix + "/" + GCCTriple + IncludeSuffix);
2403 // Otherwise try to use multiarch naming schemes which have normalized the
2404 // triples and put the triple before the suffix.
2406 // GCC surprisingly uses *both* the GCC triple with a multilib suffix and
2407 // the target triple, so we support that here.
2408 addSystemInclude(DriverArgs, CC1Args,
2409 Base + "/" + GCCMultiarchTriple + Suffix + IncludeSuffix);
2410 addSystemInclude(DriverArgs, CC1Args,
2411 Base + "/" + TargetMultiarchTriple + Suffix);
2414 addSystemInclude(DriverArgs, CC1Args, Base + Suffix + "/backward");
2418 llvm::opt::DerivedArgList *
2419 Generic_GCC::TranslateArgs(const llvm::opt::DerivedArgList &Args, StringRef,
2420 Action::OffloadKind DeviceOffloadKind) const {
2422 // If this tool chain is used for an OpenMP offloading device we have to make
2423 // sure we always generate a shared library regardless of the commands the
2424 // user passed to the host. This is required because the runtime library
2425 // is required to load the device image dynamically at run time.
2426 if (DeviceOffloadKind == Action::OFK_OpenMP) {
2427 DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs());
2428 const OptTable &Opts = getDriver().getOpts();
2430 // Request the shared library. Given that these options are decided
2431 // implicitly, they do not refer to any base argument.
2432 DAL->AddFlagArg(/*BaseArg=*/nullptr, Opts.getOption(options::OPT_shared));
2433 DAL->AddFlagArg(/*BaseArg=*/nullptr, Opts.getOption(options::OPT_fPIC));
2435 // Filter all the arguments we don't care passing to the offloading
2436 // toolchain as they can mess up with the creation of a shared library.
2437 for (auto *A : Args) {
2438 switch ((options::ID)A->getOption().getID()) {
2442 case options::OPT_shared:
2443 case options::OPT_dynamic:
2444 case options::OPT_static:
2445 case options::OPT_fPIC:
2446 case options::OPT_fno_PIC:
2447 case options::OPT_fpic:
2448 case options::OPT_fno_pic:
2449 case options::OPT_fPIE:
2450 case options::OPT_fno_PIE:
2451 case options::OPT_fpie:
2452 case options::OPT_fno_pie:
2461 void Generic_ELF::anchor() {}
2463 void Generic_ELF::addClangTargetOptions(const ArgList &DriverArgs,
2464 ArgStringList &CC1Args,
2465 Action::OffloadKind) const {
2466 const Generic_GCC::GCCVersion &V = GCCInstallation.getVersion();
2467 bool UseInitArrayDefault =
2468 getTriple().getArch() == llvm::Triple::aarch64 ||
2469 getTriple().getArch() == llvm::Triple::aarch64_be ||
2470 (getTriple().getOS() == llvm::Triple::Linux &&
2471 (!V.isOlderThan(4, 7, 0) || getTriple().isAndroid())) ||
2472 getTriple().getOS() == llvm::Triple::NaCl ||
2473 (getTriple().getVendor() == llvm::Triple::MipsTechnologies &&
2474 !getTriple().hasEnvironment()) ||
2475 getTriple().getOS() == llvm::Triple::Solaris;
2477 if (DriverArgs.hasFlag(options::OPT_fuse_init_array,
2478 options::OPT_fno_use_init_array, UseInitArrayDefault))
2479 CC1Args.push_back("-fuse-init-array");