1 //===--- ToolChain.cpp - Collections of tools for one platform ------------===//
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 //===----------------------------------------------------------------------===//
10 #include "clang/Driver/ToolChain.h"
12 #include "clang/Basic/ObjCRuntime.h"
13 #include "clang/Config/config.h"
14 #include "clang/Driver/Action.h"
15 #include "clang/Driver/Driver.h"
16 #include "clang/Driver/DriverDiagnostic.h"
17 #include "clang/Driver/Options.h"
18 #include "clang/Driver/SanitizerArgs.h"
19 #include "llvm/ADT/SmallString.h"
20 #include "llvm/Option/Arg.h"
21 #include "llvm/Option/ArgList.h"
22 #include "llvm/Option/Option.h"
23 #include "llvm/Support/ErrorHandling.h"
24 #include "llvm/Support/FileSystem.h"
25 #include "llvm/Support/Path.h"
26 #include "llvm/Support/TargetParser.h"
27 #include "llvm/Support/TargetRegistry.h"
29 using namespace clang::driver;
30 using namespace clang::driver::tools;
31 using namespace clang;
33 using namespace llvm::opt;
35 static llvm::opt::Arg *GetRTTIArgument(const ArgList &Args) {
36 return Args.getLastArg(options::OPT_mkernel, options::OPT_fapple_kext,
37 options::OPT_fno_rtti, options::OPT_frtti);
40 static ToolChain::RTTIMode CalculateRTTIMode(const ArgList &Args,
41 const llvm::Triple &Triple,
42 const Arg *CachedRTTIArg) {
43 // Explicit rtti/no-rtti args
45 if (CachedRTTIArg->getOption().matches(options::OPT_frtti))
46 return ToolChain::RM_EnabledExplicitly;
48 return ToolChain::RM_DisabledExplicitly;
51 // -frtti is default, except for the PS4 CPU.
52 if (!Triple.isPS4CPU())
53 return ToolChain::RM_EnabledImplicitly;
55 // On the PS4, turning on c++ exceptions turns on rtti.
56 // We're assuming that, if we see -fexceptions, rtti gets turned on.
57 Arg *Exceptions = Args.getLastArgNoClaim(
58 options::OPT_fcxx_exceptions, options::OPT_fno_cxx_exceptions,
59 options::OPT_fexceptions, options::OPT_fno_exceptions);
61 (Exceptions->getOption().matches(options::OPT_fexceptions) ||
62 Exceptions->getOption().matches(options::OPT_fcxx_exceptions)))
63 return ToolChain::RM_EnabledImplicitly;
65 return ToolChain::RM_DisabledImplicitly;
68 ToolChain::ToolChain(const Driver &D, const llvm::Triple &T,
70 : D(D), Triple(T), Args(Args), CachedRTTIArg(GetRTTIArgument(Args)),
71 CachedRTTIMode(CalculateRTTIMode(Args, Triple, CachedRTTIArg)),
73 if (Arg *A = Args.getLastArg(options::OPT_mthread_model))
74 if (!isThreadModelSupported(A->getValue()))
75 D.Diag(diag::err_drv_invalid_thread_model_for_target)
76 << A->getValue() << A->getAsString(Args);
79 ToolChain::~ToolChain() {
82 vfs::FileSystem &ToolChain::getVFS() const { return getDriver().getVFS(); }
84 bool ToolChain::useIntegratedAs() const {
85 return Args.hasFlag(options::OPT_fintegrated_as,
86 options::OPT_fno_integrated_as,
87 IsIntegratedAssemblerDefault());
90 const SanitizerArgs& ToolChain::getSanitizerArgs() const {
91 if (!SanitizerArguments.get())
92 SanitizerArguments.reset(new SanitizerArgs(*this, Args));
93 return *SanitizerArguments.get();
102 const DriverSuffix *FindDriverSuffix(StringRef ProgName) {
103 // A list of known driver suffixes. Suffixes are compared against the
104 // program name in order. If there is a match, the frontend type is updated as
105 // necessary by applying the ModeFlag.
106 static const DriverSuffix DriverSuffixes[] = {
108 {"clang++", "--driver-mode=g++"},
109 {"clang-c++", "--driver-mode=g++"},
110 {"clang-cc", nullptr},
111 {"clang-cpp", "--driver-mode=cpp"},
112 {"clang-g++", "--driver-mode=g++"},
113 {"clang-gcc", nullptr},
114 {"clang-cl", "--driver-mode=cl"},
116 {"cpp", "--driver-mode=cpp"},
117 {"cl", "--driver-mode=cl"},
118 {"++", "--driver-mode=g++"},
121 for (size_t i = 0; i < llvm::array_lengthof(DriverSuffixes); ++i)
122 if (ProgName.endswith(DriverSuffixes[i].Suffix))
123 return &DriverSuffixes[i];
127 /// Normalize the program name from argv[0] by stripping the file extension if
128 /// present and lower-casing the string on Windows.
129 std::string normalizeProgramName(llvm::StringRef Argv0) {
130 std::string ProgName = llvm::sys::path::stem(Argv0);
132 // Transform to lowercase for case insensitive file systems.
133 std::transform(ProgName.begin(), ProgName.end(), ProgName.begin(), ::tolower);
138 const DriverSuffix *parseDriverSuffix(StringRef ProgName) {
139 // Try to infer frontend type and default target from the program name by
140 // comparing it against DriverSuffixes in order.
142 // If there is a match, the function tries to identify a target as prefix.
143 // E.g. "x86_64-linux-clang" as interpreted as suffix "clang" with target
144 // prefix "x86_64-linux". If such a target prefix is found, it may be
145 // added via -target as implicit first argument.
146 const DriverSuffix *DS = FindDriverSuffix(ProgName);
149 // Try again after stripping any trailing version number:
150 // clang++3.5 -> clang++
151 ProgName = ProgName.rtrim("0123456789.");
152 DS = FindDriverSuffix(ProgName);
156 // Try again after stripping trailing -component.
157 // clang++-tot -> clang++
158 ProgName = ProgName.slice(0, ProgName.rfind('-'));
159 DS = FindDriverSuffix(ProgName);
163 } // anonymous namespace
165 std::pair<std::string, std::string>
166 ToolChain::getTargetAndModeFromProgramName(StringRef PN) {
167 std::string ProgName = normalizeProgramName(PN);
168 const DriverSuffix *DS = parseDriverSuffix(ProgName);
170 return std::make_pair("", "");
171 std::string ModeFlag = DS->ModeFlag == nullptr ? "" : DS->ModeFlag;
173 std::string::size_type LastComponent =
174 ProgName.rfind('-', ProgName.size() - strlen(DS->Suffix));
175 if (LastComponent == std::string::npos)
176 return std::make_pair("", ModeFlag);
178 // Infer target from the prefix.
179 StringRef Prefix(ProgName);
180 Prefix = Prefix.slice(0, LastComponent);
181 std::string IgnoredError;
183 if (llvm::TargetRegistry::lookupTarget(Prefix, IgnoredError)) {
186 return std::make_pair(Target, ModeFlag);
189 StringRef ToolChain::getDefaultUniversalArchName() const {
190 // In universal driver terms, the arch name accepted by -arch isn't exactly
191 // the same as the ones that appear in the triple. Roughly speaking, this is
192 // an inverse of the darwin::getArchTypeForDarwinArchName() function, but the
193 // only interesting special case is powerpc.
194 switch (Triple.getArch()) {
195 case llvm::Triple::ppc:
197 case llvm::Triple::ppc64:
199 case llvm::Triple::ppc64le:
202 return Triple.getArchName();
206 bool ToolChain::IsUnwindTablesDefault() const {
210 Tool *ToolChain::getClang() const {
212 Clang.reset(new tools::Clang(*this));
216 Tool *ToolChain::buildAssembler() const {
217 return new tools::ClangAs(*this);
220 Tool *ToolChain::buildLinker() const {
221 llvm_unreachable("Linking is not supported by this toolchain");
224 Tool *ToolChain::getAssemble() const {
226 Assemble.reset(buildAssembler());
227 return Assemble.get();
230 Tool *ToolChain::getClangAs() const {
232 Assemble.reset(new tools::ClangAs(*this));
233 return Assemble.get();
236 Tool *ToolChain::getLink() const {
238 Link.reset(buildLinker());
242 Tool *ToolChain::getOffloadBundler() const {
244 OffloadBundler.reset(new tools::OffloadBundler(*this));
245 return OffloadBundler.get();
248 Tool *ToolChain::getTool(Action::ActionClass AC) const {
250 case Action::AssembleJobClass:
251 return getAssemble();
253 case Action::LinkJobClass:
256 case Action::InputClass:
257 case Action::BindArchClass:
258 case Action::OffloadClass:
259 case Action::LipoJobClass:
260 case Action::DsymutilJobClass:
261 case Action::VerifyDebugInfoJobClass:
262 llvm_unreachable("Invalid tool kind.");
264 case Action::CompileJobClass:
265 case Action::PrecompileJobClass:
266 case Action::PreprocessJobClass:
267 case Action::AnalyzeJobClass:
268 case Action::MigrateJobClass:
269 case Action::VerifyPCHJobClass:
270 case Action::BackendJobClass:
273 case Action::OffloadBundlingJobClass:
274 case Action::OffloadUnbundlingJobClass:
275 return getOffloadBundler();
278 llvm_unreachable("Invalid tool kind.");
281 static StringRef getArchNameForCompilerRTLib(const ToolChain &TC,
282 const ArgList &Args) {
283 const llvm::Triple &Triple = TC.getTriple();
284 bool IsWindows = Triple.isOSWindows();
286 if (Triple.isWindowsMSVCEnvironment() && TC.getArch() == llvm::Triple::x86)
289 if (TC.getArch() == llvm::Triple::arm || TC.getArch() == llvm::Triple::armeb)
290 return (arm::getARMFloatABI(TC, Args) == arm::FloatABI::Hard && !IsWindows)
294 return TC.getArchName();
297 std::string ToolChain::getCompilerRT(const ArgList &Args, StringRef Component,
299 const llvm::Triple &TT = getTriple();
300 const char *Env = TT.isAndroid() ? "-android" : "";
301 bool IsITANMSVCWindows =
302 TT.isWindowsMSVCEnvironment() || TT.isWindowsItaniumEnvironment();
304 StringRef Arch = getArchNameForCompilerRTLib(*this, Args);
305 const char *Prefix = IsITANMSVCWindows ? "" : "lib";
306 const char *Suffix = Shared ? (Triple.isOSWindows() ? ".dll" : ".so")
307 : (IsITANMSVCWindows ? ".lib" : ".a");
309 SmallString<128> Path(getDriver().ResourceDir);
310 StringRef OSLibName = Triple.isOSFreeBSD() ? "freebsd" : getOS();
311 llvm::sys::path::append(Path, "lib", OSLibName);
312 llvm::sys::path::append(Path, Prefix + Twine("clang_rt.") + Component + "-" +
313 Arch + Env + Suffix);
317 const char *ToolChain::getCompilerRTArgString(const llvm::opt::ArgList &Args,
320 return Args.MakeArgString(getCompilerRT(Args, Component, Shared));
323 bool ToolChain::needsProfileRT(const ArgList &Args) {
324 if (Args.hasFlag(options::OPT_fprofile_arcs, options::OPT_fno_profile_arcs,
326 Args.hasArg(options::OPT_fprofile_generate) ||
327 Args.hasArg(options::OPT_fprofile_generate_EQ) ||
328 Args.hasArg(options::OPT_fprofile_instr_generate) ||
329 Args.hasArg(options::OPT_fprofile_instr_generate_EQ) ||
330 Args.hasArg(options::OPT_fcreate_profile) ||
331 Args.hasArg(options::OPT_coverage))
337 Tool *ToolChain::SelectTool(const JobAction &JA) const {
338 if (getDriver().ShouldUseClangCompiler(JA)) return getClang();
339 Action::ActionClass AC = JA.getKind();
340 if (AC == Action::AssembleJobClass && useIntegratedAs())
345 std::string ToolChain::GetFilePath(const char *Name) const {
346 return D.GetFilePath(Name, *this);
349 std::string ToolChain::GetProgramPath(const char *Name) const {
350 return D.GetProgramPath(Name, *this);
353 std::string ToolChain::GetLinkerPath() const {
354 const Arg* A = Args.getLastArg(options::OPT_fuse_ld_EQ);
355 StringRef UseLinker = A ? A->getValue() : CLANG_DEFAULT_LINKER;
357 if (llvm::sys::path::is_absolute(UseLinker)) {
358 // If we're passed what looks like an absolute path, don't attempt to
359 // second-guess that.
360 if (llvm::sys::fs::exists(UseLinker))
362 } else if (UseLinker.empty() || UseLinker == "ld") {
363 // If we're passed -fuse-ld= with no argument, or with the argument ld,
364 // then use whatever the default system linker is.
365 return GetProgramPath(getDefaultLinker());
367 llvm::SmallString<8> LinkerName("ld.");
368 LinkerName.append(UseLinker);
370 std::string LinkerPath(GetProgramPath(LinkerName.c_str()));
371 if (llvm::sys::fs::exists(LinkerPath))
376 getDriver().Diag(diag::err_drv_invalid_linker_name) << A->getAsString(Args);
378 return GetProgramPath(getDefaultLinker());
381 types::ID ToolChain::LookupTypeForExtension(StringRef Ext) const {
382 return types::lookupTypeForExtension(Ext);
385 bool ToolChain::HasNativeLLVMSupport() const {
389 bool ToolChain::isCrossCompiling() const {
390 llvm::Triple HostTriple(LLVM_HOST_TRIPLE);
391 switch (HostTriple.getArch()) {
392 // The A32/T32/T16 instruction sets are not separate architectures in this
394 case llvm::Triple::arm:
395 case llvm::Triple::armeb:
396 case llvm::Triple::thumb:
397 case llvm::Triple::thumbeb:
398 return getArch() != llvm::Triple::arm && getArch() != llvm::Triple::thumb &&
399 getArch() != llvm::Triple::armeb && getArch() != llvm::Triple::thumbeb;
401 return HostTriple.getArch() != getArch();
405 ObjCRuntime ToolChain::getDefaultObjCRuntime(bool isNonFragile) const {
406 return ObjCRuntime(isNonFragile ? ObjCRuntime::GNUstep : ObjCRuntime::GCC,
410 bool ToolChain::isThreadModelSupported(const StringRef Model) const {
411 if (Model == "single") {
412 // FIXME: 'single' is only supported on ARM and WebAssembly so far.
413 return Triple.getArch() == llvm::Triple::arm ||
414 Triple.getArch() == llvm::Triple::armeb ||
415 Triple.getArch() == llvm::Triple::thumb ||
416 Triple.getArch() == llvm::Triple::thumbeb ||
417 Triple.getArch() == llvm::Triple::wasm32 ||
418 Triple.getArch() == llvm::Triple::wasm64;
419 } else if (Model == "posix")
425 std::string ToolChain::ComputeLLVMTriple(const ArgList &Args,
426 types::ID InputType) const {
427 switch (getTriple().getArch()) {
429 return getTripleString();
431 case llvm::Triple::x86_64: {
432 llvm::Triple Triple = getTriple();
433 if (!Triple.isOSBinFormatMachO())
434 return getTripleString();
436 if (Arg *A = Args.getLastArg(options::OPT_march_EQ)) {
437 // x86_64h goes in the triple. Other -march options just use the
438 // vanilla triple we already have.
439 StringRef MArch = A->getValue();
440 if (MArch == "x86_64h")
441 Triple.setArchName(MArch);
443 return Triple.getTriple();
445 case llvm::Triple::aarch64: {
446 llvm::Triple Triple = getTriple();
447 if (!Triple.isOSBinFormatMachO())
448 return getTripleString();
450 // FIXME: older versions of ld64 expect the "arm64" component in the actual
451 // triple string and query it to determine whether an LTO file can be
452 // handled. Remove this when we don't care any more.
453 Triple.setArchName("arm64");
454 return Triple.getTriple();
456 case llvm::Triple::arm:
457 case llvm::Triple::armeb:
458 case llvm::Triple::thumb:
459 case llvm::Triple::thumbeb: {
460 // FIXME: Factor into subclasses.
461 llvm::Triple Triple = getTriple();
462 bool IsBigEndian = getTriple().getArch() == llvm::Triple::armeb ||
463 getTriple().getArch() == llvm::Triple::thumbeb;
465 // Handle pseudo-target flags '-mlittle-endian'/'-EL' and
466 // '-mbig-endian'/'-EB'.
467 if (Arg *A = Args.getLastArg(options::OPT_mlittle_endian,
468 options::OPT_mbig_endian)) {
469 IsBigEndian = !A->getOption().matches(options::OPT_mlittle_endian);
472 // Thumb2 is the default for V7 on Darwin.
474 // FIXME: Thumb should just be another -target-feaure, not in the triple.
475 StringRef MCPU, MArch;
476 if (const Arg *A = Args.getLastArg(options::OPT_mcpu_EQ))
477 MCPU = A->getValue();
478 if (const Arg *A = Args.getLastArg(options::OPT_march_EQ))
479 MArch = A->getValue();
481 Triple.isOSBinFormatMachO()
482 ? tools::arm::getARMCPUForMArch(MArch, Triple).str()
483 : tools::arm::getARMTargetCPU(MCPU, MArch, Triple);
485 tools::arm::getLLVMArchSuffixForARM(CPU, MArch, Triple);
486 bool IsMProfile = ARM::parseArchProfile(Suffix) == ARM::PK_M;
487 bool ThumbDefault = IsMProfile || (ARM::parseArchVersion(Suffix) == 7 &&
488 getTriple().isOSBinFormatMachO());
489 // FIXME: this is invalid for WindowsCE
490 if (getTriple().isOSWindows())
492 std::string ArchName;
498 // Assembly files should start in ARM mode, unless arch is M-profile.
499 // Windows is always thumb.
500 if ((InputType != types::TY_PP_Asm && Args.hasFlag(options::OPT_mthumb,
501 options::OPT_mno_thumb, ThumbDefault)) || IsMProfile ||
502 getTriple().isOSWindows()) {
504 ArchName = "thumbeb";
508 Triple.setArchName(ArchName + Suffix.str());
510 return Triple.getTriple();
515 std::string ToolChain::ComputeEffectiveClangTriple(const ArgList &Args,
516 types::ID InputType) const {
517 return ComputeLLVMTriple(Args, InputType);
520 void ToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
521 ArgStringList &CC1Args) const {
522 // Each toolchain should provide the appropriate include flags.
525 void ToolChain::addClangTargetOptions(const ArgList &DriverArgs,
526 ArgStringList &CC1Args) const {
529 void ToolChain::addClangWarningOptions(ArgStringList &CC1Args) const {}
531 void ToolChain::addProfileRTLibs(const llvm::opt::ArgList &Args,
532 llvm::opt::ArgStringList &CmdArgs) const {
533 if (!needsProfileRT(Args)) return;
535 CmdArgs.push_back(getCompilerRTArgString(Args, "profile"));
538 ToolChain::RuntimeLibType ToolChain::GetRuntimeLibType(
539 const ArgList &Args) const {
540 const Arg* A = Args.getLastArg(options::OPT_rtlib_EQ);
541 StringRef LibName = A ? A->getValue() : CLANG_DEFAULT_RTLIB;
543 // Only use "platform" in tests to override CLANG_DEFAULT_RTLIB!
544 if (LibName == "compiler-rt")
545 return ToolChain::RLT_CompilerRT;
546 else if (LibName == "libgcc")
547 return ToolChain::RLT_Libgcc;
548 else if (LibName == "platform")
549 return GetDefaultRuntimeLibType();
552 getDriver().Diag(diag::err_drv_invalid_rtlib_name) << A->getAsString(Args);
554 return GetDefaultRuntimeLibType();
557 ToolChain::CXXStdlibType ToolChain::GetCXXStdlibType(const ArgList &Args) const{
558 const Arg *A = Args.getLastArg(options::OPT_stdlib_EQ);
559 StringRef LibName = A ? A->getValue() : CLANG_DEFAULT_CXX_STDLIB;
561 // Only use "platform" in tests to override CLANG_DEFAULT_CXX_STDLIB!
562 if (LibName == "libc++")
563 return ToolChain::CST_Libcxx;
564 else if (LibName == "libstdc++")
565 return ToolChain::CST_Libstdcxx;
566 else if (LibName == "platform")
567 return GetDefaultCXXStdlibType();
570 getDriver().Diag(diag::err_drv_invalid_stdlib_name) << A->getAsString(Args);
572 return GetDefaultCXXStdlibType();
575 /// \brief Utility function to add a system include directory to CC1 arguments.
576 /*static*/ void ToolChain::addSystemInclude(const ArgList &DriverArgs,
577 ArgStringList &CC1Args,
579 CC1Args.push_back("-internal-isystem");
580 CC1Args.push_back(DriverArgs.MakeArgString(Path));
583 /// \brief Utility function to add a system include directory with extern "C"
584 /// semantics to CC1 arguments.
586 /// Note that this should be used rarely, and only for directories that
587 /// historically and for legacy reasons are treated as having implicit extern
588 /// "C" semantics. These semantics are *ignored* by and large today, but its
589 /// important to preserve the preprocessor changes resulting from the
591 /*static*/ void ToolChain::addExternCSystemInclude(const ArgList &DriverArgs,
592 ArgStringList &CC1Args,
594 CC1Args.push_back("-internal-externc-isystem");
595 CC1Args.push_back(DriverArgs.MakeArgString(Path));
598 void ToolChain::addExternCSystemIncludeIfExists(const ArgList &DriverArgs,
599 ArgStringList &CC1Args,
601 if (llvm::sys::fs::exists(Path))
602 addExternCSystemInclude(DriverArgs, CC1Args, Path);
605 /// \brief Utility function to add a list of system include directories to CC1.
606 /*static*/ void ToolChain::addSystemIncludes(const ArgList &DriverArgs,
607 ArgStringList &CC1Args,
608 ArrayRef<StringRef> Paths) {
609 for (StringRef Path : Paths) {
610 CC1Args.push_back("-internal-isystem");
611 CC1Args.push_back(DriverArgs.MakeArgString(Path));
615 void ToolChain::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
616 ArgStringList &CC1Args) const {
617 // Header search paths should be handled by each of the subclasses.
618 // Historically, they have not been, and instead have been handled inside of
619 // the CC1-layer frontend. As the logic is hoisted out, this generic function
620 // will slowly stop being called.
622 // While it is being called, replicate a bit of a hack to propagate the
623 // '-stdlib=' flag down to CC1 so that it can in turn customize the C++
624 // header search paths with it. Once all systems are overriding this
625 // function, the CC1 flag and this line can be removed.
626 DriverArgs.AddAllArgs(CC1Args, options::OPT_stdlib_EQ);
629 void ToolChain::AddCXXStdlibLibArgs(const ArgList &Args,
630 ArgStringList &CmdArgs) const {
631 CXXStdlibType Type = GetCXXStdlibType(Args);
634 case ToolChain::CST_Libcxx:
635 CmdArgs.push_back("-lc++");
638 case ToolChain::CST_Libstdcxx:
639 CmdArgs.push_back("-lstdc++");
644 void ToolChain::AddFilePathLibArgs(const ArgList &Args,
645 ArgStringList &CmdArgs) const {
646 for (const auto &LibPath : getFilePaths())
647 if(LibPath.length() > 0)
648 CmdArgs.push_back(Args.MakeArgString(StringRef("-L") + LibPath));
651 void ToolChain::AddCCKextLibArgs(const ArgList &Args,
652 ArgStringList &CmdArgs) const {
653 CmdArgs.push_back("-lcc_kext");
656 bool ToolChain::AddFastMathRuntimeIfAvailable(const ArgList &Args,
657 ArgStringList &CmdArgs) const {
658 // Do not check for -fno-fast-math or -fno-unsafe-math when -Ofast passed
659 // (to keep the linker options consistent with gcc and clang itself).
660 if (!isOptimizationLevelFast(Args)) {
661 // Check if -ffast-math or -funsafe-math.
663 Args.getLastArg(options::OPT_ffast_math, options::OPT_fno_fast_math,
664 options::OPT_funsafe_math_optimizations,
665 options::OPT_fno_unsafe_math_optimizations);
667 if (!A || A->getOption().getID() == options::OPT_fno_fast_math ||
668 A->getOption().getID() == options::OPT_fno_unsafe_math_optimizations)
671 // If crtfastmath.o exists add it to the arguments.
672 std::string Path = GetFilePath("crtfastmath.o");
673 if (Path == "crtfastmath.o") // Not found.
676 CmdArgs.push_back(Args.MakeArgString(Path));
680 SanitizerMask ToolChain::getSupportedSanitizers() const {
681 // Return sanitizers which don't require runtime support and are not
682 // platform dependent.
683 using namespace SanitizerKind;
684 SanitizerMask Res = (Undefined & ~Vptr & ~Function) | (CFI & ~CFIICall) |
685 CFICastStrict | UnsignedIntegerOverflow | LocalBounds;
686 if (getTriple().getArch() == llvm::Triple::x86 ||
687 getTriple().getArch() == llvm::Triple::x86_64 ||
688 getTriple().getArch() == llvm::Triple::arm ||
689 getTriple().getArch() == llvm::Triple::aarch64 ||
690 getTriple().getArch() == llvm::Triple::wasm32 ||
691 getTriple().getArch() == llvm::Triple::wasm64)
696 void ToolChain::AddCudaIncludeArgs(const ArgList &DriverArgs,
697 ArgStringList &CC1Args) const {}
699 void ToolChain::AddIAMCUIncludeArgs(const ArgList &DriverArgs,
700 ArgStringList &CC1Args) const {}
702 static VersionTuple separateMSVCFullVersion(unsigned Version) {
704 return VersionTuple(Version);
707 return VersionTuple(Version / 100, Version % 100);
709 unsigned Build = 0, Factor = 1;
710 for (; Version > 10000; Version = Version / 10, Factor = Factor * 10)
711 Build = Build + (Version % 10) * Factor;
712 return VersionTuple(Version / 100, Version % 100, Build);
716 ToolChain::computeMSVCVersion(const Driver *D,
717 const llvm::opt::ArgList &Args) const {
718 const Arg *MSCVersion = Args.getLastArg(options::OPT_fmsc_version);
719 const Arg *MSCompatibilityVersion =
720 Args.getLastArg(options::OPT_fms_compatibility_version);
722 if (MSCVersion && MSCompatibilityVersion) {
724 D->Diag(diag::err_drv_argument_not_allowed_with)
725 << MSCVersion->getAsString(Args)
726 << MSCompatibilityVersion->getAsString(Args);
727 return VersionTuple();
730 if (MSCompatibilityVersion) {
732 if (MSVT.tryParse(MSCompatibilityVersion->getValue())) {
734 D->Diag(diag::err_drv_invalid_value)
735 << MSCompatibilityVersion->getAsString(Args)
736 << MSCompatibilityVersion->getValue();
743 unsigned Version = 0;
744 if (StringRef(MSCVersion->getValue()).getAsInteger(10, Version)) {
746 D->Diag(diag::err_drv_invalid_value)
747 << MSCVersion->getAsString(Args) << MSCVersion->getValue();
749 return separateMSVCFullVersion(Version);
753 return VersionTuple();