clang  8.0.0svn
ToolChain.cpp
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1 //===- ToolChain.cpp - Collections of tools for one platform --------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #include "clang/Driver/ToolChain.h"
11 #include "InputInfo.h"
12 #include "ToolChains/Arch/ARM.h"
13 #include "ToolChains/Clang.h"
15 #include "clang/Basic/Sanitizers.h"
17 #include "clang/Config/config.h"
18 #include "clang/Driver/Action.h"
19 #include "clang/Driver/Driver.h"
21 #include "clang/Driver/Job.h"
22 #include "clang/Driver/Options.h"
24 #include "clang/Driver/XRayArgs.h"
25 #include "llvm/ADT/STLExtras.h"
26 #include "llvm/ADT/SmallString.h"
27 #include "llvm/ADT/StringRef.h"
28 #include "llvm/ADT/Triple.h"
29 #include "llvm/ADT/Twine.h"
30 #include "llvm/Config/llvm-config.h"
31 #include "llvm/MC/MCTargetOptions.h"
32 #include "llvm/Option/Arg.h"
33 #include "llvm/Option/ArgList.h"
34 #include "llvm/Option/OptTable.h"
35 #include "llvm/Option/Option.h"
36 #include "llvm/Support/ErrorHandling.h"
37 #include "llvm/Support/FileSystem.h"
38 #include "llvm/Support/Path.h"
39 #include "llvm/Support/TargetParser.h"
40 #include "llvm/Support/TargetRegistry.h"
41 #include "llvm/Support/VersionTuple.h"
42 #include <cassert>
43 #include <cstddef>
44 #include <cstring>
45 #include <string>
46 
47 using namespace clang;
48 using namespace driver;
49 using namespace tools;
50 using namespace llvm;
51 using namespace llvm::opt;
52 
53 static llvm::opt::Arg *GetRTTIArgument(const ArgList &Args) {
54  return Args.getLastArg(options::OPT_mkernel, options::OPT_fapple_kext,
55  options::OPT_fno_rtti, options::OPT_frtti);
56 }
57 
58 static ToolChain::RTTIMode CalculateRTTIMode(const ArgList &Args,
59  const llvm::Triple &Triple,
60  const Arg *CachedRTTIArg) {
61  // Explicit rtti/no-rtti args
62  if (CachedRTTIArg) {
63  if (CachedRTTIArg->getOption().matches(options::OPT_frtti))
64  return ToolChain::RM_Enabled;
65  else
67  }
68 
69  // -frtti is default, except for the PS4 CPU.
70  return (Triple.isPS4CPU()) ? ToolChain::RM_Disabled : ToolChain::RM_Enabled;
71 }
72 
73 ToolChain::ToolChain(const Driver &D, const llvm::Triple &T,
74  const ArgList &Args)
75  : D(D), Triple(T), Args(Args), CachedRTTIArg(GetRTTIArgument(Args)),
76  CachedRTTIMode(CalculateRTTIMode(Args, Triple, CachedRTTIArg)) {
78 
79  P.assign(D.ResourceDir);
80  llvm::sys::path::append(P, D.getTargetTriple(), "lib");
81  if (getVFS().exists(P))
82  getLibraryPaths().push_back(P.str());
83 
84  P.assign(D.ResourceDir);
85  llvm::sys::path::append(P, Triple.str(), "lib");
86  if (getVFS().exists(P))
87  getLibraryPaths().push_back(P.str());
88 
89  std::string CandidateLibPath = getArchSpecificLibPath();
90  if (getVFS().exists(CandidateLibPath))
91  getFilePaths().push_back(CandidateLibPath);
92 }
93 
94 void ToolChain::setTripleEnvironment(llvm::Triple::EnvironmentType Env) {
95  Triple.setEnvironment(Env);
96  if (EffectiveTriple != llvm::Triple())
97  EffectiveTriple.setEnvironment(Env);
98 }
99 
100 ToolChain::~ToolChain() = default;
101 
103 
105  return Args.hasFlag(options::OPT_fintegrated_as,
106  options::OPT_fno_integrated_as,
108 }
109 
111  return ENABLE_X86_RELAX_RELOCATIONS;
112 }
113 
115  if (!SanitizerArguments.get())
116  SanitizerArguments.reset(new SanitizerArgs(*this, Args));
117  return *SanitizerArguments.get();
118 }
119 
121  if (!XRayArguments.get())
122  XRayArguments.reset(new XRayArgs(*this, Args));
123  return *XRayArguments.get();
124 }
125 
126 namespace {
127 
128 struct DriverSuffix {
129  const char *Suffix;
130  const char *ModeFlag;
131 };
132 
133 } // namespace
134 
135 static const DriverSuffix *FindDriverSuffix(StringRef ProgName, size_t &Pos) {
136  // A list of known driver suffixes. Suffixes are compared against the
137  // program name in order. If there is a match, the frontend type is updated as
138  // necessary by applying the ModeFlag.
139  static const DriverSuffix DriverSuffixes[] = {
140  {"clang", nullptr},
141  {"clang++", "--driver-mode=g++"},
142  {"clang-c++", "--driver-mode=g++"},
143  {"clang-cc", nullptr},
144  {"clang-cpp", "--driver-mode=cpp"},
145  {"clang-g++", "--driver-mode=g++"},
146  {"clang-gcc", nullptr},
147  {"clang-cl", "--driver-mode=cl"},
148  {"cc", nullptr},
149  {"cpp", "--driver-mode=cpp"},
150  {"cl", "--driver-mode=cl"},
151  {"++", "--driver-mode=g++"},
152  };
153 
154  for (size_t i = 0; i < llvm::array_lengthof(DriverSuffixes); ++i) {
155  StringRef Suffix(DriverSuffixes[i].Suffix);
156  if (ProgName.endswith(Suffix)) {
157  Pos = ProgName.size() - Suffix.size();
158  return &DriverSuffixes[i];
159  }
160  }
161  return nullptr;
162 }
163 
164 /// Normalize the program name from argv[0] by stripping the file extension if
165 /// present and lower-casing the string on Windows.
166 static std::string normalizeProgramName(llvm::StringRef Argv0) {
167  std::string ProgName = llvm::sys::path::stem(Argv0);
168 #ifdef _WIN32
169  // Transform to lowercase for case insensitive file systems.
170  std::transform(ProgName.begin(), ProgName.end(), ProgName.begin(), ::tolower);
171 #endif
172  return ProgName;
173 }
174 
175 static const DriverSuffix *parseDriverSuffix(StringRef ProgName, size_t &Pos) {
176  // Try to infer frontend type and default target from the program name by
177  // comparing it against DriverSuffixes in order.
178 
179  // If there is a match, the function tries to identify a target as prefix.
180  // E.g. "x86_64-linux-clang" as interpreted as suffix "clang" with target
181  // prefix "x86_64-linux". If such a target prefix is found, it may be
182  // added via -target as implicit first argument.
183  const DriverSuffix *DS = FindDriverSuffix(ProgName, Pos);
184 
185  if (!DS) {
186  // Try again after stripping any trailing version number:
187  // clang++3.5 -> clang++
188  ProgName = ProgName.rtrim("0123456789.");
189  DS = FindDriverSuffix(ProgName, Pos);
190  }
191 
192  if (!DS) {
193  // Try again after stripping trailing -component.
194  // clang++-tot -> clang++
195  ProgName = ProgName.slice(0, ProgName.rfind('-'));
196  DS = FindDriverSuffix(ProgName, Pos);
197  }
198  return DS;
199 }
200 
203  std::string ProgName = normalizeProgramName(PN);
204  size_t SuffixPos;
205  const DriverSuffix *DS = parseDriverSuffix(ProgName, SuffixPos);
206  if (!DS)
207  return {};
208  size_t SuffixEnd = SuffixPos + strlen(DS->Suffix);
209 
210  size_t LastComponent = ProgName.rfind('-', SuffixPos);
211  if (LastComponent == std::string::npos)
212  return ParsedClangName(ProgName.substr(0, SuffixEnd), DS->ModeFlag);
213  std::string ModeSuffix = ProgName.substr(LastComponent + 1,
214  SuffixEnd - LastComponent - 1);
215 
216  // Infer target from the prefix.
217  StringRef Prefix(ProgName);
218  Prefix = Prefix.slice(0, LastComponent);
219  std::string IgnoredError;
220  bool IsRegistered = llvm::TargetRegistry::lookupTarget(Prefix, IgnoredError);
221  return ParsedClangName{Prefix, ModeSuffix, DS->ModeFlag, IsRegistered};
222 }
223 
225  // In universal driver terms, the arch name accepted by -arch isn't exactly
226  // the same as the ones that appear in the triple. Roughly speaking, this is
227  // an inverse of the darwin::getArchTypeForDarwinArchName() function, but the
228  // only interesting special case is powerpc.
229  switch (Triple.getArch()) {
230  case llvm::Triple::ppc:
231  return "ppc";
232  case llvm::Triple::ppc64:
233  return "ppc64";
234  case llvm::Triple::ppc64le:
235  return "ppc64le";
236  default:
237  return Triple.getArchName();
238  }
239 }
240 
241 std::string ToolChain::getInputFilename(const InputInfo &Input) const {
242  return Input.getFilename();
243 }
244 
245 bool ToolChain::IsUnwindTablesDefault(const ArgList &Args) const {
246  return false;
247 }
248 
249 Tool *ToolChain::getClang() const {
250  if (!Clang)
251  Clang.reset(new tools::Clang(*this));
252  return Clang.get();
253 }
254 
256  return new tools::ClangAs(*this);
257 }
258 
260  llvm_unreachable("Linking is not supported by this toolchain");
261 }
262 
263 Tool *ToolChain::getAssemble() const {
264  if (!Assemble)
265  Assemble.reset(buildAssembler());
266  return Assemble.get();
267 }
268 
269 Tool *ToolChain::getClangAs() const {
270  if (!Assemble)
271  Assemble.reset(new tools::ClangAs(*this));
272  return Assemble.get();
273 }
274 
275 Tool *ToolChain::getLink() const {
276  if (!Link)
277  Link.reset(buildLinker());
278  return Link.get();
279 }
280 
281 Tool *ToolChain::getOffloadBundler() const {
282  if (!OffloadBundler)
283  OffloadBundler.reset(new tools::OffloadBundler(*this));
284  return OffloadBundler.get();
285 }
286 
288  switch (AC) {
290  return getAssemble();
291 
293  return getLink();
294 
295  case Action::InputClass:
301  llvm_unreachable("Invalid tool kind.");
302 
311  return getClang();
312 
315  return getOffloadBundler();
316  }
317 
318  llvm_unreachable("Invalid tool kind.");
319 }
320 
321 static StringRef getArchNameForCompilerRTLib(const ToolChain &TC,
322  const ArgList &Args) {
323  const llvm::Triple &Triple = TC.getTriple();
324  bool IsWindows = Triple.isOSWindows();
325 
326  if (TC.getArch() == llvm::Triple::arm || TC.getArch() == llvm::Triple::armeb)
327  return (arm::getARMFloatABI(TC, Args) == arm::FloatABI::Hard && !IsWindows)
328  ? "armhf"
329  : "arm";
330 
331  // For historic reasons, Android library is using i686 instead of i386.
332  if (TC.getArch() == llvm::Triple::x86 && Triple.isAndroid())
333  return "i686";
334 
335  return llvm::Triple::getArchTypeName(TC.getArch());
336 }
337 
338 StringRef ToolChain::getOSLibName() const {
339  switch (Triple.getOS()) {
340  case llvm::Triple::FreeBSD:
341  return "freebsd";
342  case llvm::Triple::NetBSD:
343  return "netbsd";
344  case llvm::Triple::OpenBSD:
345  return "openbsd";
346  case llvm::Triple::Solaris:
347  return "sunos";
348  default:
349  return getOS();
350  }
351 }
352 
353 std::string ToolChain::getCompilerRTPath() const {
354  SmallString<128> Path(getDriver().ResourceDir);
355  if (Triple.isOSUnknown()) {
356  llvm::sys::path::append(Path, "lib");
357  } else {
358  llvm::sys::path::append(Path, "lib", getOSLibName());
359  }
360  return Path.str();
361 }
362 
363 std::string ToolChain::getCompilerRT(const ArgList &Args, StringRef Component,
364  bool Shared) const {
365  const llvm::Triple &TT = getTriple();
366  bool IsITANMSVCWindows =
367  TT.isWindowsMSVCEnvironment() || TT.isWindowsItaniumEnvironment();
368 
369  const char *Prefix = IsITANMSVCWindows ? "" : "lib";
370  const char *Suffix = Shared ? (Triple.isOSWindows() ? ".dll" : ".so")
371  : (IsITANMSVCWindows ? ".lib" : ".a");
372 
373  for (const auto &LibPath : getLibraryPaths()) {
374  SmallString<128> P(LibPath);
375  llvm::sys::path::append(P, Prefix + Twine("clang_rt.") + Component + Suffix);
376  if (getVFS().exists(P))
377  return P.str();
378  }
379 
380  StringRef Arch = getArchNameForCompilerRTLib(*this, Args);
381  const char *Env = TT.isAndroid() ? "-android" : "";
383  llvm::sys::path::append(Path, Prefix + Twine("clang_rt.") + Component + "-" +
384  Arch + Env + Suffix);
385  return Path.str();
386 }
387 
388 const char *ToolChain::getCompilerRTArgString(const llvm::opt::ArgList &Args,
389  StringRef Component,
390  bool Shared) const {
391  return Args.MakeArgString(getCompilerRT(Args, Component, Shared));
392 }
393 
395  SmallString<128> Path(getDriver().ResourceDir);
396  llvm::sys::path::append(Path, "lib", getOSLibName(),
397  llvm::Triple::getArchTypeName(getArch()));
398  return Path.str();
399 }
400 
401 bool ToolChain::needsProfileRT(const ArgList &Args) {
402  if (Args.hasFlag(options::OPT_fprofile_arcs, options::OPT_fno_profile_arcs,
403  false) ||
404  Args.hasArg(options::OPT_fprofile_generate) ||
405  Args.hasArg(options::OPT_fprofile_generate_EQ) ||
406  Args.hasArg(options::OPT_fprofile_instr_generate) ||
407  Args.hasArg(options::OPT_fprofile_instr_generate_EQ) ||
408  Args.hasArg(options::OPT_fcreate_profile) ||
409  Args.hasArg(options::OPT_coverage))
410  return true;
411 
412  return false;
413 }
414 
416  if (getDriver().ShouldUseClangCompiler(JA)) return getClang();
417  Action::ActionClass AC = JA.getKind();
419  return getClangAs();
420  return getTool(AC);
421 }
422 
423 std::string ToolChain::GetFilePath(const char *Name) const {
424  return D.GetFilePath(Name, *this);
425 }
426 
427 std::string ToolChain::GetProgramPath(const char *Name) const {
428  return D.GetProgramPath(Name, *this);
429 }
430 
431 std::string ToolChain::GetLinkerPath() const {
432  const Arg* A = Args.getLastArg(options::OPT_fuse_ld_EQ);
433  StringRef UseLinker = A ? A->getValue() : CLANG_DEFAULT_LINKER;
434 
435  if (llvm::sys::path::is_absolute(UseLinker)) {
436  // If we're passed what looks like an absolute path, don't attempt to
437  // second-guess that.
438  if (llvm::sys::fs::can_execute(UseLinker))
439  return UseLinker;
440  } else if (UseLinker.empty() || UseLinker == "ld") {
441  // If we're passed -fuse-ld= with no argument, or with the argument ld,
442  // then use whatever the default system linker is.
444  } else {
445  llvm::SmallString<8> LinkerName;
446  if (Triple.isOSDarwin())
447  LinkerName.append("ld64.");
448  else
449  LinkerName.append("ld.");
450  LinkerName.append(UseLinker);
451 
452  std::string LinkerPath(GetProgramPath(LinkerName.c_str()));
453  if (llvm::sys::fs::can_execute(LinkerPath))
454  return LinkerPath;
455  }
456 
457  if (A)
458  getDriver().Diag(diag::err_drv_invalid_linker_name) << A->getAsString(Args);
459 
461 }
462 
464  return types::lookupTypeForExtension(Ext);
465 }
466 
468  return false;
469 }
470 
472  llvm::Triple HostTriple(LLVM_HOST_TRIPLE);
473  switch (HostTriple.getArch()) {
474  // The A32/T32/T16 instruction sets are not separate architectures in this
475  // context.
476  case llvm::Triple::arm:
477  case llvm::Triple::armeb:
478  case llvm::Triple::thumb:
479  case llvm::Triple::thumbeb:
480  return getArch() != llvm::Triple::arm && getArch() != llvm::Triple::thumb &&
481  getArch() != llvm::Triple::armeb && getArch() != llvm::Triple::thumbeb;
482  default:
483  return HostTriple.getArch() != getArch();
484  }
485 }
486 
488  return ObjCRuntime(isNonFragile ? ObjCRuntime::GNUstep : ObjCRuntime::GCC,
489  VersionTuple());
490 }
491 
492 llvm::ExceptionHandling
493 ToolChain::GetExceptionModel(const llvm::opt::ArgList &Args) const {
494  return llvm::ExceptionHandling::None;
495 }
496 
497 bool ToolChain::isThreadModelSupported(const StringRef Model) const {
498  if (Model == "single") {
499  // FIXME: 'single' is only supported on ARM and WebAssembly so far.
500  return Triple.getArch() == llvm::Triple::arm ||
501  Triple.getArch() == llvm::Triple::armeb ||
502  Triple.getArch() == llvm::Triple::thumb ||
503  Triple.getArch() == llvm::Triple::thumbeb ||
504  Triple.getArch() == llvm::Triple::wasm32 ||
505  Triple.getArch() == llvm::Triple::wasm64;
506  } else if (Model == "posix")
507  return true;
508 
509  return false;
510 }
511 
512 std::string ToolChain::ComputeLLVMTriple(const ArgList &Args,
513  types::ID InputType) const {
514  switch (getTriple().getArch()) {
515  default:
516  return getTripleString();
517 
518  case llvm::Triple::x86_64: {
519  llvm::Triple Triple = getTriple();
520  if (!Triple.isOSBinFormatMachO())
521  return getTripleString();
522 
523  if (Arg *A = Args.getLastArg(options::OPT_march_EQ)) {
524  // x86_64h goes in the triple. Other -march options just use the
525  // vanilla triple we already have.
526  StringRef MArch = A->getValue();
527  if (MArch == "x86_64h")
528  Triple.setArchName(MArch);
529  }
530  return Triple.getTriple();
531  }
532  case llvm::Triple::aarch64: {
533  llvm::Triple Triple = getTriple();
534  if (!Triple.isOSBinFormatMachO())
535  return getTripleString();
536 
537  // FIXME: older versions of ld64 expect the "arm64" component in the actual
538  // triple string and query it to determine whether an LTO file can be
539  // handled. Remove this when we don't care any more.
540  Triple.setArchName("arm64");
541  return Triple.getTriple();
542  }
543  case llvm::Triple::arm:
544  case llvm::Triple::armeb:
545  case llvm::Triple::thumb:
546  case llvm::Triple::thumbeb: {
547  // FIXME: Factor into subclasses.
548  llvm::Triple Triple = getTriple();
549  bool IsBigEndian = getTriple().getArch() == llvm::Triple::armeb ||
550  getTriple().getArch() == llvm::Triple::thumbeb;
551 
552  // Handle pseudo-target flags '-mlittle-endian'/'-EL' and
553  // '-mbig-endian'/'-EB'.
554  if (Arg *A = Args.getLastArg(options::OPT_mlittle_endian,
555  options::OPT_mbig_endian)) {
556  IsBigEndian = !A->getOption().matches(options::OPT_mlittle_endian);
557  }
558 
559  // Thumb2 is the default for V7 on Darwin.
560  //
561  // FIXME: Thumb should just be another -target-feaure, not in the triple.
562  StringRef MCPU, MArch;
563  if (const Arg *A = Args.getLastArg(options::OPT_mcpu_EQ))
564  MCPU = A->getValue();
565  if (const Arg *A = Args.getLastArg(options::OPT_march_EQ))
566  MArch = A->getValue();
567  std::string CPU =
568  Triple.isOSBinFormatMachO()
569  ? tools::arm::getARMCPUForMArch(MArch, Triple).str()
570  : tools::arm::getARMTargetCPU(MCPU, MArch, Triple);
571  StringRef Suffix =
572  tools::arm::getLLVMArchSuffixForARM(CPU, MArch, Triple);
573  bool IsMProfile = ARM::parseArchProfile(Suffix) == ARM::ProfileKind::M;
574  bool ThumbDefault = IsMProfile || (ARM::parseArchVersion(Suffix) == 7 &&
575  getTriple().isOSBinFormatMachO());
576  // FIXME: this is invalid for WindowsCE
577  if (getTriple().isOSWindows())
578  ThumbDefault = true;
579  std::string ArchName;
580  if (IsBigEndian)
581  ArchName = "armeb";
582  else
583  ArchName = "arm";
584 
585  // Check if ARM ISA was explicitly selected (using -mno-thumb or -marm) for
586  // M-Class CPUs/architecture variants, which is not supported.
587  bool ARMModeRequested = !Args.hasFlag(options::OPT_mthumb,
588  options::OPT_mno_thumb, ThumbDefault);
589  if (IsMProfile && ARMModeRequested) {
590  if (!MCPU.empty())
591  getDriver().Diag(diag::err_cpu_unsupported_isa) << CPU << "ARM";
592  else
593  getDriver().Diag(diag::err_arch_unsupported_isa)
594  << tools::arm::getARMArch(MArch, getTriple()) << "ARM";
595  }
596 
597  // Check to see if an explicit choice to use thumb has been made via
598  // -mthumb. For assembler files we must check for -mthumb in the options
599  // passed to the assember via -Wa or -Xassembler.
600  bool IsThumb = false;
601  if (InputType != types::TY_PP_Asm)
602  IsThumb = Args.hasFlag(options::OPT_mthumb, options::OPT_mno_thumb,
603  ThumbDefault);
604  else {
605  // Ideally we would check for these flags in
606  // CollectArgsForIntegratedAssembler but we can't change the ArchName at
607  // that point. There is no assembler equivalent of -mno-thumb, -marm, or
608  // -mno-arm.
609  for (const auto *A :
610  Args.filtered(options::OPT_Wa_COMMA, options::OPT_Xassembler)) {
611  for (StringRef Value : A->getValues()) {
612  if (Value == "-mthumb")
613  IsThumb = true;
614  }
615  }
616  }
617  // Assembly files should start in ARM mode, unless arch is M-profile, or
618  // -mthumb has been passed explicitly to the assembler. Windows is always
619  // thumb.
620  if (IsThumb || IsMProfile || getTriple().isOSWindows()) {
621  if (IsBigEndian)
622  ArchName = "thumbeb";
623  else
624  ArchName = "thumb";
625  }
626  Triple.setArchName(ArchName + Suffix.str());
627 
628  return Triple.getTriple();
629  }
630  }
631 }
632 
633 std::string ToolChain::ComputeEffectiveClangTriple(const ArgList &Args,
634  types::ID InputType) const {
635  return ComputeLLVMTriple(Args, InputType);
636 }
637 
638 void ToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
639  ArgStringList &CC1Args) const {
640  // Each toolchain should provide the appropriate include flags.
641 }
642 
644  const ArgList &DriverArgs, ArgStringList &CC1Args,
645  Action::OffloadKind DeviceOffloadKind) const {}
646 
647 void ToolChain::addClangWarningOptions(ArgStringList &CC1Args) const {}
648 
649 void ToolChain::addProfileRTLibs(const llvm::opt::ArgList &Args,
650  llvm::opt::ArgStringList &CmdArgs) const {
651  if (!needsProfileRT(Args)) return;
652 
653  CmdArgs.push_back(getCompilerRTArgString(Args, "profile"));
654 }
655 
657  const ArgList &Args) const {
658  const Arg* A = Args.getLastArg(options::OPT_rtlib_EQ);
659  StringRef LibName = A ? A->getValue() : CLANG_DEFAULT_RTLIB;
660 
661  // Only use "platform" in tests to override CLANG_DEFAULT_RTLIB!
662  if (LibName == "compiler-rt")
664  else if (LibName == "libgcc")
665  return ToolChain::RLT_Libgcc;
666  else if (LibName == "platform")
667  return GetDefaultRuntimeLibType();
668 
669  if (A)
670  getDriver().Diag(diag::err_drv_invalid_rtlib_name) << A->getAsString(Args);
671 
672  return GetDefaultRuntimeLibType();
673 }
674 
676  const Arg *A = Args.getLastArg(options::OPT_stdlib_EQ);
677  StringRef LibName = A ? A->getValue() : CLANG_DEFAULT_CXX_STDLIB;
678 
679  // Only use "platform" in tests to override CLANG_DEFAULT_CXX_STDLIB!
680  if (LibName == "libc++")
681  return ToolChain::CST_Libcxx;
682  else if (LibName == "libstdc++")
684  else if (LibName == "platform")
685  return GetDefaultCXXStdlibType();
686 
687  if (A)
688  getDriver().Diag(diag::err_drv_invalid_stdlib_name) << A->getAsString(Args);
689 
690  return GetDefaultCXXStdlibType();
691 }
692 
693 /// Utility function to add a system include directory to CC1 arguments.
694 /*static*/ void ToolChain::addSystemInclude(const ArgList &DriverArgs,
695  ArgStringList &CC1Args,
696  const Twine &Path) {
697  CC1Args.push_back("-internal-isystem");
698  CC1Args.push_back(DriverArgs.MakeArgString(Path));
699 }
700 
701 /// Utility function to add a system include directory with extern "C"
702 /// semantics to CC1 arguments.
703 ///
704 /// Note that this should be used rarely, and only for directories that
705 /// historically and for legacy reasons are treated as having implicit extern
706 /// "C" semantics. These semantics are *ignored* by and large today, but its
707 /// important to preserve the preprocessor changes resulting from the
708 /// classification.
709 /*static*/ void ToolChain::addExternCSystemInclude(const ArgList &DriverArgs,
710  ArgStringList &CC1Args,
711  const Twine &Path) {
712  CC1Args.push_back("-internal-externc-isystem");
713  CC1Args.push_back(DriverArgs.MakeArgString(Path));
714 }
715 
716 void ToolChain::addExternCSystemIncludeIfExists(const ArgList &DriverArgs,
717  ArgStringList &CC1Args,
718  const Twine &Path) {
719  if (llvm::sys::fs::exists(Path))
720  addExternCSystemInclude(DriverArgs, CC1Args, Path);
721 }
722 
723 /// Utility function to add a list of system include directories to CC1.
724 /*static*/ void ToolChain::addSystemIncludes(const ArgList &DriverArgs,
725  ArgStringList &CC1Args,
726  ArrayRef<StringRef> Paths) {
727  for (const auto Path : Paths) {
728  CC1Args.push_back("-internal-isystem");
729  CC1Args.push_back(DriverArgs.MakeArgString(Path));
730  }
731 }
732 
733 void ToolChain::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
734  ArgStringList &CC1Args) const {
735  // Header search paths should be handled by each of the subclasses.
736  // Historically, they have not been, and instead have been handled inside of
737  // the CC1-layer frontend. As the logic is hoisted out, this generic function
738  // will slowly stop being called.
739  //
740  // While it is being called, replicate a bit of a hack to propagate the
741  // '-stdlib=' flag down to CC1 so that it can in turn customize the C++
742  // header search paths with it. Once all systems are overriding this
743  // function, the CC1 flag and this line can be removed.
744  DriverArgs.AddAllArgs(CC1Args, options::OPT_stdlib_EQ);
745 }
746 
747 bool ToolChain::ShouldLinkCXXStdlib(const llvm::opt::ArgList &Args) const {
748  return getDriver().CCCIsCXX() &&
749  !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs,
750  options::OPT_nostdlibxx);
751 }
752 
753 void ToolChain::AddCXXStdlibLibArgs(const ArgList &Args,
754  ArgStringList &CmdArgs) const {
755  assert(!Args.hasArg(options::OPT_nostdlibxx) &&
756  "should not have called this");
758 
759  switch (Type) {
761  CmdArgs.push_back("-lc++");
762  break;
763 
765  CmdArgs.push_back("-lstdc++");
766  break;
767  }
768 }
769 
770 void ToolChain::AddFilePathLibArgs(const ArgList &Args,
771  ArgStringList &CmdArgs) const {
772  for (const auto &LibPath : getLibraryPaths())
773  if(LibPath.length() > 0)
774  CmdArgs.push_back(Args.MakeArgString(StringRef("-L") + LibPath));
775 
776  for (const auto &LibPath : getFilePaths())
777  if(LibPath.length() > 0)
778  CmdArgs.push_back(Args.MakeArgString(StringRef("-L") + LibPath));
779 }
780 
781 void ToolChain::AddCCKextLibArgs(const ArgList &Args,
782  ArgStringList &CmdArgs) const {
783  CmdArgs.push_back("-lcc_kext");
784 }
785 
787  ArgStringList &CmdArgs) const {
788  // Do not check for -fno-fast-math or -fno-unsafe-math when -Ofast passed
789  // (to keep the linker options consistent with gcc and clang itself).
790  if (!isOptimizationLevelFast(Args)) {
791  // Check if -ffast-math or -funsafe-math.
792  Arg *A =
793  Args.getLastArg(options::OPT_ffast_math, options::OPT_fno_fast_math,
794  options::OPT_funsafe_math_optimizations,
795  options::OPT_fno_unsafe_math_optimizations);
796 
797  if (!A || A->getOption().getID() == options::OPT_fno_fast_math ||
798  A->getOption().getID() == options::OPT_fno_unsafe_math_optimizations)
799  return false;
800  }
801  // If crtfastmath.o exists add it to the arguments.
802  std::string Path = GetFilePath("crtfastmath.o");
803  if (Path == "crtfastmath.o") // Not found.
804  return false;
805 
806  CmdArgs.push_back(Args.MakeArgString(Path));
807  return true;
808 }
809 
811  // Return sanitizers which don't require runtime support and are not
812  // platform dependent.
813 
814  using namespace SanitizerKind;
815 
816  SanitizerMask Res = (Undefined & ~Vptr & ~Function) | (CFI & ~CFIICall) |
817  CFICastStrict | UnsignedIntegerOverflow |
818  ImplicitConversion | Nullability | LocalBounds;
819  if (getTriple().getArch() == llvm::Triple::x86 ||
820  getTriple().getArch() == llvm::Triple::x86_64 ||
821  getTriple().getArch() == llvm::Triple::arm ||
822  getTriple().getArch() == llvm::Triple::aarch64 ||
823  getTriple().getArch() == llvm::Triple::wasm32 ||
824  getTriple().getArch() == llvm::Triple::wasm64)
825  Res |= CFIICall;
826  if (getTriple().getArch() == llvm::Triple::x86_64 ||
827  getTriple().getArch() == llvm::Triple::aarch64)
828  Res |= ShadowCallStack;
829  return Res;
830 }
831 
832 void ToolChain::AddCudaIncludeArgs(const ArgList &DriverArgs,
833  ArgStringList &CC1Args) const {}
834 
835 void ToolChain::AddIAMCUIncludeArgs(const ArgList &DriverArgs,
836  ArgStringList &CC1Args) const {}
837 
838 static VersionTuple separateMSVCFullVersion(unsigned Version) {
839  if (Version < 100)
840  return VersionTuple(Version);
841 
842  if (Version < 10000)
843  return VersionTuple(Version / 100, Version % 100);
844 
845  unsigned Build = 0, Factor = 1;
846  for (; Version > 10000; Version = Version / 10, Factor = Factor * 10)
847  Build = Build + (Version % 10) * Factor;
848  return VersionTuple(Version / 100, Version % 100, Build);
849 }
850 
851 VersionTuple
853  const llvm::opt::ArgList &Args) const {
854  const Arg *MSCVersion = Args.getLastArg(options::OPT_fmsc_version);
855  const Arg *MSCompatibilityVersion =
856  Args.getLastArg(options::OPT_fms_compatibility_version);
857 
858  if (MSCVersion && MSCompatibilityVersion) {
859  if (D)
860  D->Diag(diag::err_drv_argument_not_allowed_with)
861  << MSCVersion->getAsString(Args)
862  << MSCompatibilityVersion->getAsString(Args);
863  return VersionTuple();
864  }
865 
866  if (MSCompatibilityVersion) {
867  VersionTuple MSVT;
868  if (MSVT.tryParse(MSCompatibilityVersion->getValue())) {
869  if (D)
870  D->Diag(diag::err_drv_invalid_value)
871  << MSCompatibilityVersion->getAsString(Args)
872  << MSCompatibilityVersion->getValue();
873  } else {
874  return MSVT;
875  }
876  }
877 
878  if (MSCVersion) {
879  unsigned Version = 0;
880  if (StringRef(MSCVersion->getValue()).getAsInteger(10, Version)) {
881  if (D)
882  D->Diag(diag::err_drv_invalid_value)
883  << MSCVersion->getAsString(Args) << MSCVersion->getValue();
884  } else {
885  return separateMSVCFullVersion(Version);
886  }
887  }
888 
889  return VersionTuple();
890 }
891 
892 llvm::opt::DerivedArgList *ToolChain::TranslateOpenMPTargetArgs(
893  const llvm::opt::DerivedArgList &Args, bool SameTripleAsHost,
894  SmallVectorImpl<llvm::opt::Arg *> &AllocatedArgs) const {
895  DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs());
896  const OptTable &Opts = getDriver().getOpts();
897  bool Modified = false;
898 
899  // Handle -Xopenmp-target flags
900  for (auto *A : Args) {
901  // Exclude flags which may only apply to the host toolchain.
902  // Do not exclude flags when the host triple (AuxTriple)
903  // matches the current toolchain triple. If it is not present
904  // at all, target and host share a toolchain.
905  if (A->getOption().matches(options::OPT_m_Group)) {
906  if (SameTripleAsHost)
907  DAL->append(A);
908  else
909  Modified = true;
910  continue;
911  }
912 
913  unsigned Index;
914  unsigned Prev;
915  bool XOpenMPTargetNoTriple =
916  A->getOption().matches(options::OPT_Xopenmp_target);
917 
918  if (A->getOption().matches(options::OPT_Xopenmp_target_EQ)) {
919  // Passing device args: -Xopenmp-target=<triple> -opt=val.
920  if (A->getValue(0) == getTripleString())
921  Index = Args.getBaseArgs().MakeIndex(A->getValue(1));
922  else
923  continue;
924  } else if (XOpenMPTargetNoTriple) {
925  // Passing device args: -Xopenmp-target -opt=val.
926  Index = Args.getBaseArgs().MakeIndex(A->getValue(0));
927  } else {
928  DAL->append(A);
929  continue;
930  }
931 
932  // Parse the argument to -Xopenmp-target.
933  Prev = Index;
934  std::unique_ptr<Arg> XOpenMPTargetArg(Opts.ParseOneArg(Args, Index));
935  if (!XOpenMPTargetArg || Index > Prev + 1) {
936  getDriver().Diag(diag::err_drv_invalid_Xopenmp_target_with_args)
937  << A->getAsString(Args);
938  continue;
939  }
940  if (XOpenMPTargetNoTriple && XOpenMPTargetArg &&
941  Args.getAllArgValues(options::OPT_fopenmp_targets_EQ).size() != 1) {
942  getDriver().Diag(diag::err_drv_Xopenmp_target_missing_triple);
943  continue;
944  }
945  XOpenMPTargetArg->setBaseArg(A);
946  A = XOpenMPTargetArg.release();
947  AllocatedArgs.push_back(A);
948  DAL->append(A);
949  Modified = true;
950  }
951 
952  if (Modified)
953  return DAL;
954 
955  delete DAL;
956  return nullptr;
957 }
virtual void addClangWarningOptions(llvm::opt::ArgStringList &CC1Args) const
Add warning options that need to be passed to cc1 for this target.
Definition: ToolChain.cpp:647
static void addExternCSystemInclude(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, const Twine &Path)
Utility function to add a system include directory with extern "C" semantics to CC1 arguments...
Definition: ToolChain.cpp:709
void setTripleEnvironment(llvm::Triple::EnvironmentType Env)
Definition: ToolChain.cpp:94
virtual std::string ComputeLLVMTriple(const llvm::opt::ArgList &Args, types::ID InputType=types::TY_INVALID) const
ComputeLLVMTriple - Return the LLVM target triple to use, after taking command line arguments into ac...
Definition: ToolChain.cpp:512
static void addExternCSystemIncludeIfExists(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, const Twine &Path)
Definition: ToolChain.cpp:716
virtual void AddCCKextLibArgs(const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs) const
AddCCKextLibArgs - Add the system specific linker arguments to use for kernel extensions (Darwin-spec...
Definition: ToolChain.cpp:781
virtual const char * getDefaultLinker() const
GetDefaultLinker - Get the default linker to use.
Definition: ToolChain.h:353
DominatorTree GraphTraits specialization so the DominatorTree can be iterable by generic graph iterat...
Definition: Dominators.h:30
virtual ObjCRuntime getDefaultObjCRuntime(bool isNonFragile) const
getDefaultObjCRuntime - Return the default Objective-C runtime for this platform. ...
Definition: ToolChain.cpp:487
const char * getCompilerRTArgString(const llvm::opt::ArgList &Args, StringRef Component, bool Shared=false) const
Definition: ToolChain.cpp:388
StringRef P
Defines types useful for describing an Objective-C runtime.
The base class of the type hierarchy.
Definition: Type.h:1415
const XRayArgs & getXRayArgs() const
Definition: ToolChain.cpp:120
virtual void AddClangCXXStdlibIncludeArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
AddClangCXXStdlibIncludeArgs - Add the clang -cc1 level arguments to set the include paths to use for...
Definition: ToolChain.cpp:733
StringRef getOS() const
Definition: ToolChain.h:204
virtual bool isThreadModelSupported(const StringRef Model) const
isThreadModelSupported() - Does this target support a thread model?
Definition: ToolChain.cpp:497
std::string getTargetTriple() const
Definition: Driver.h:312
virtual bool IsUnwindTablesDefault(const llvm::opt::ArgList &Args) const
IsUnwindTablesDefault - Does this tool chain use -funwind-tables by default.
Definition: ToolChain.cpp:245
DiagnosticBuilder Diag(unsigned DiagID) const
Definition: Driver.h:110
&#39;gcc&#39; is the Objective-C runtime shipped with GCC, implementing a fragile Objective-C ABI ...
Definition: ObjCRuntime.h:53
static ParsedClangName getTargetAndModeFromProgramName(StringRef ProgName)
Return any implicit target and/or mode flag for an invocation of the compiler driver as ProgName...
Definition: ToolChain.cpp:202
static VersionTuple separateMSVCFullVersion(unsigned Version)
Definition: ToolChain.cpp:838
virtual void addProfileRTLibs(const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs) const
addProfileRTLibs - When -fprofile-instr-profile is specified, try to pass a suitable profile runtime ...
Definition: ToolChain.cpp:649
std::string GetLinkerPath() const
Returns the linker path, respecting the -fuse-ld= argument to determine the linker suffix or name...
Definition: ToolChain.cpp:431
FloatABI getARMFloatABI(const ToolChain &TC, const llvm::opt::ArgList &Args)
Clang integrated assembler tool.
Definition: Clang.h:115
Defines the clang::SanitizerKind enum.
const std::string getARMArch(llvm::StringRef Arch, const llvm::Triple &Triple)
The virtual file system interface.
const char * getFilename() const
Definition: InputInfo.h:84
virtual void AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Add the clang cc1 arguments for system include paths.
Definition: ToolChain.cpp:638
static StringRef getArchNameForCompilerRTLib(const ToolChain &TC, const ArgList &Args)
Definition: ToolChain.cpp:321
StringRef getOSLibName() const
Definition: ToolChain.cpp:338
static bool needsProfileRT(const llvm::opt::ArgList &Args)
needsProfileRT - returns true if instrumentation profile is on.
Definition: ToolChain.cpp:401
std::string getTripleString() const
Definition: ToolChain.h:210
StringRef getARMCPUForMArch(llvm::StringRef Arch, const llvm::Triple &Triple)
InputInfo - Wrapper for information about an input source.
Definition: InputInfo.h:23
std::string GetFilePath(const char *Name) const
Definition: ToolChain.cpp:423
vfs::FileSystem & getVFS() const
Definition: ToolChain.cpp:102
bool isOptimizationLevelFast(const llvm::opt::ArgList &Args)
path_list & getFilePaths()
Definition: ToolChain.h:223
virtual bool AddFastMathRuntimeIfAvailable(const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs) const
AddFastMathRuntimeIfAvailable - If a runtime library exists that sets global flags for unsafe floatin...
Definition: ToolChain.cpp:786
Driver - Encapsulate logic for constructing compilation processes from a set of gcc-driver-like comma...
Definition: Driver.h:59
ToolChain(const Driver &D, const llvm::Triple &T, const llvm::opt::ArgList &Args)
Definition: ToolChain.cpp:73
virtual bool IsIntegratedAssemblerDefault() const
IsIntegratedAssemblerDefault - Does this tool chain enable -integrated-as by default.
Definition: ToolChain.h:323
virtual bool useRelaxRelocations() const
Check whether to enable x86 relax relocations by default.
Definition: ToolChain.cpp:110
virtual bool useIntegratedAs() const
Check if the toolchain should use the integrated assembler.
Definition: ToolChain.cpp:104
ActionClass getKind() const
Definition: Action.h:140
virtual VersionTuple computeMSVCVersion(const Driver *D, const llvm::opt::ArgList &Args) const
On Windows, returns the MSVC compatibility version.
Definition: ToolChain.cpp:852
static void addSystemIncludes(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, ArrayRef< StringRef > Paths)
Utility function to add a list of system include directories to CC1.
Definition: ToolChain.cpp:724
virtual llvm::ExceptionHandling GetExceptionModel(const llvm::opt::ArgList &Args) const
GetExceptionModel - Return the tool chain exception model.
Definition: ToolChain.cpp:493
static llvm::opt::Arg * GetRTTIArgument(const ArgList &Args)
Definition: ToolChain.cpp:53
virtual Tool * buildLinker() const
Definition: ToolChain.cpp:259
static const DriverSuffix * parseDriverSuffix(StringRef ProgName, size_t &Pos)
Definition: ToolChain.cpp:175
virtual llvm::opt::DerivedArgList * TranslateOpenMPTargetArgs(const llvm::opt::DerivedArgList &Args, bool SameTripleAsHost, SmallVectorImpl< llvm::opt::Arg *> &AllocatedArgs) const
TranslateOpenMPTargetArgs - Create a new derived argument list for that contains the OpenMP target sp...
Definition: ToolChain.cpp:892
virtual types::ID LookupTypeForExtension(StringRef Ext) const
LookupTypeForExtension - Return the default language type to use for the given extension.
Definition: ToolChain.cpp:463
static const DriverSuffix * FindDriverSuffix(StringRef ProgName, size_t &Pos)
Definition: ToolChain.cpp:135
virtual std::string getCompilerRT(const llvm::opt::ArgList &Args, StringRef Component, bool Shared=false) const
Definition: ToolChain.cpp:363
&#39;gnustep&#39; is the modern non-fragile GNUstep runtime.
Definition: ObjCRuntime.h:56
virtual CXXStdlibType GetDefaultCXXStdlibType() const
Definition: ToolChain.h:360
path_list & getLibraryPaths()
Definition: ToolChain.h:220
llvm::Triple::ArchType getArch() const
Definition: ToolChain.h:201
virtual void AddCudaIncludeArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Add arguments to use system-specific CUDA includes.
Definition: ToolChain.cpp:832
virtual std::string getInputFilename(const InputInfo &Input) const
Some toolchains need to modify the file name, for example to replace the extension for object files w...
Definition: ToolChain.cpp:241
void AddFilePathLibArgs(const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs) const
AddFilePathLibArgs - Add each thing in getFilePaths() as a "-L" option.
Definition: ToolChain.cpp:770
vfs::FileSystem & getVFS() const
Definition: Driver.h:301
Offload bundler tool.
Definition: Clang.h:134
const Driver & getDriver() const
Definition: ToolChain.h:185
bool CCCIsCXX() const
Whether the driver should follow g++ like behavior.
Definition: Driver.h:174
static void addSystemInclude(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, const Twine &Path)
Utility function to add a system include directory to CC1 arguments.
Definition: ToolChain.cpp:694
virtual bool HasNativeLLVMSupport() const
HasNativeLTOLinker - Check whether the linker and related tools have native LLVM support.
Definition: ToolChain.cpp:467
virtual RuntimeLibType GetRuntimeLibType(const llvm::opt::ArgList &Args) const
Definition: ToolChain.cpp:656
virtual Tool * buildAssembler() const
Definition: ToolChain.cpp:255
Helper structure used to pass information extracted from clang executable name such as i686-linux-and...
Definition: ToolChain.h:61
std::string getARMTargetCPU(StringRef CPU, llvm::StringRef Arch, const llvm::Triple &Triple)
bool ShouldLinkCXXStdlib(const llvm::opt::ArgList &Args) const
Returns if the C++ standard library should be linked in.
Definition: ToolChain.cpp:747
Dataflow Directional Tag Classes.
virtual std::string ComputeEffectiveClangTriple(const llvm::opt::ArgList &Args, types::ID InputType=types::TY_INVALID) const
ComputeEffectiveClangTriple - Return the Clang triple to use for this target, which may take into acc...
Definition: ToolChain.cpp:633
Clang compiler tool.
Definition: Clang.h:29
static ToolChain::RTTIMode CalculateRTTIMode(const ArgList &Args, const llvm::Triple &Triple, const Arg *CachedRTTIArg)
Definition: ToolChain.cpp:58
The basic abstraction for the target Objective-C runtime.
Definition: ObjCRuntime.h:28
Tool - Information on a specific compilation tool.
Definition: Tool.h:34
Defines the virtual file system interface vfs::FileSystem.
const SanitizerArgs & getSanitizerArgs() const
Definition: ToolChain.cpp:114
static std::string normalizeProgramName(llvm::StringRef Argv0)
Normalize the program name from argv[0] by stripping the file extension if present and lower-casing t...
Definition: ToolChain.cpp:166
bool exists(const Twine &Path)
Check whether a file exists. Provided for convenience.
uint64_t SanitizerMask
Definition: Sanitizers.h:26
StringRef getDefaultUniversalArchName() const
Provide the default architecture name (as expected by -arch) for this toolchain.
Definition: ToolChain.cpp:224
const llvm::Triple & getTriple() const
Definition: ToolChain.h:187
virtual SanitizerMask getSupportedSanitizers() const
Return sanitizers which are available in this toolchain.
Definition: ToolChain.cpp:810
ID lookupTypeForExtension(llvm::StringRef Ext)
lookupTypeForExtension - Lookup the type to use for the file extension Ext.
Definition: Types.cpp:195
std::string getArchSpecificLibPath() const
Definition: ToolChain.cpp:394
virtual Tool * getTool(Action::ActionClass AC) const
Definition: ToolChain.cpp:287
virtual std::string getCompilerRTPath() const
Definition: ToolChain.cpp:353
std::string GetProgramPath(const char *Name) const
Definition: ToolChain.cpp:427
const llvm::opt::OptTable & getOpts() const
Definition: Driver.h:297
virtual bool isCrossCompiling() const
Returns true if the toolchain is targeting a non-native architecture.
Definition: ToolChain.cpp:471
virtual CXXStdlibType GetCXXStdlibType(const llvm::opt::ArgList &Args) const
Definition: ToolChain.cpp:675
virtual Tool * SelectTool(const JobAction &JA) const
Choose a tool to use to handle the action JA.
Definition: ToolChain.cpp:415
virtual void AddIAMCUIncludeArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Add arguments to use MCU GCC toolchain includes.
Definition: ToolChain.cpp:835
StringRef getLLVMArchSuffixForARM(llvm::StringRef CPU, llvm::StringRef Arch, const llvm::Triple &Triple)
virtual void addClangTargetOptions(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, Action::OffloadKind DeviceOffloadKind) const
Add options that need to be passed to cc1 for this target.
Definition: ToolChain.cpp:643
virtual RuntimeLibType GetDefaultRuntimeLibType() const
GetDefaultRuntimeLibType - Get the default runtime library variant to use.
Definition: ToolChain.h:356
virtual void AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs) const
AddCXXStdlibLibArgs - Add the system specific linker arguments to use for the given C++ standard libr...
Definition: ToolChain.cpp:753
ToolChain - Access to tools for a single platform.
Definition: ToolChain.h:88
std::string ResourceDir
The path to the compiler resource directory.
Definition: Driver.h:133