clang  9.0.0svn
ToolChain.cpp
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1 //===- ToolChain.cpp - Collections of tools for one platform --------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
10 #include "InputInfo.h"
11 #include "ToolChains/Arch/ARM.h"
12 #include "ToolChains/Clang.h"
14 #include "clang/Basic/Sanitizers.h"
15 #include "clang/Config/config.h"
16 #include "clang/Driver/Action.h"
17 #include "clang/Driver/Driver.h"
19 #include "clang/Driver/Job.h"
20 #include "clang/Driver/Options.h"
22 #include "clang/Driver/XRayArgs.h"
23 #include "llvm/ADT/STLExtras.h"
24 #include "llvm/ADT/SmallString.h"
25 #include "llvm/ADT/StringRef.h"
26 #include "llvm/ADT/Triple.h"
27 #include "llvm/ADT/Twine.h"
28 #include "llvm/Config/llvm-config.h"
29 #include "llvm/MC/MCTargetOptions.h"
30 #include "llvm/Option/Arg.h"
31 #include "llvm/Option/ArgList.h"
32 #include "llvm/Option/OptTable.h"
33 #include "llvm/Option/Option.h"
34 #include "llvm/Support/ErrorHandling.h"
35 #include "llvm/Support/FileSystem.h"
36 #include "llvm/Support/Path.h"
37 #include "llvm/Support/TargetParser.h"
38 #include "llvm/Support/TargetRegistry.h"
39 #include "llvm/Support/VersionTuple.h"
40 #include "llvm/Support/VirtualFileSystem.h"
41 #include <cassert>
42 #include <cstddef>
43 #include <cstring>
44 #include <string>
45 
46 using namespace clang;
47 using namespace driver;
48 using namespace tools;
49 using namespace llvm;
50 using namespace llvm::opt;
51 
52 static llvm::opt::Arg *GetRTTIArgument(const ArgList &Args) {
53  return Args.getLastArg(options::OPT_mkernel, options::OPT_fapple_kext,
54  options::OPT_fno_rtti, options::OPT_frtti);
55 }
56 
57 static ToolChain::RTTIMode CalculateRTTIMode(const ArgList &Args,
58  const llvm::Triple &Triple,
59  const Arg *CachedRTTIArg) {
60  // Explicit rtti/no-rtti args
61  if (CachedRTTIArg) {
62  if (CachedRTTIArg->getOption().matches(options::OPT_frtti))
63  return ToolChain::RM_Enabled;
64  else
66  }
67 
68  // -frtti is default, except for the PS4 CPU.
69  return (Triple.isPS4CPU()) ? ToolChain::RM_Disabled : ToolChain::RM_Enabled;
70 }
71 
72 ToolChain::ToolChain(const Driver &D, const llvm::Triple &T,
73  const ArgList &Args)
74  : D(D), Triple(T), Args(Args), CachedRTTIArg(GetRTTIArgument(Args)),
75  CachedRTTIMode(CalculateRTTIMode(Args, Triple, CachedRTTIArg)) {
77 
78  P.assign(D.ResourceDir);
79  llvm::sys::path::append(P, D.getTargetTriple(), "lib");
80  if (getVFS().exists(P))
81  getLibraryPaths().push_back(P.str());
82 
83  P.assign(D.ResourceDir);
84  llvm::sys::path::append(P, Triple.str(), "lib");
85  if (getVFS().exists(P))
86  getLibraryPaths().push_back(P.str());
87 
88  std::string CandidateLibPath = getArchSpecificLibPath();
89  if (getVFS().exists(CandidateLibPath))
90  getFilePaths().push_back(CandidateLibPath);
91 }
92 
93 void ToolChain::setTripleEnvironment(llvm::Triple::EnvironmentType Env) {
94  Triple.setEnvironment(Env);
95  if (EffectiveTriple != llvm::Triple())
96  EffectiveTriple.setEnvironment(Env);
97 }
98 
99 ToolChain::~ToolChain() = default;
100 
101 llvm::vfs::FileSystem &ToolChain::getVFS() const {
102  return getDriver().getVFS();
103 }
104 
106  return Args.hasFlag(options::OPT_fintegrated_as,
107  options::OPT_fno_integrated_as,
109 }
110 
112  return ENABLE_X86_RELAX_RELOCATIONS;
113 }
114 
116  if (!SanitizerArguments.get())
117  SanitizerArguments.reset(new SanitizerArgs(*this, Args));
118  return *SanitizerArguments.get();
119 }
120 
122  if (!XRayArguments.get())
123  XRayArguments.reset(new XRayArgs(*this, Args));
124  return *XRayArguments.get();
125 }
126 
127 namespace {
128 
129 struct DriverSuffix {
130  const char *Suffix;
131  const char *ModeFlag;
132 };
133 
134 } // namespace
135 
136 static const DriverSuffix *FindDriverSuffix(StringRef ProgName, size_t &Pos) {
137  // A list of known driver suffixes. Suffixes are compared against the
138  // program name in order. If there is a match, the frontend type is updated as
139  // necessary by applying the ModeFlag.
140  static const DriverSuffix DriverSuffixes[] = {
141  {"clang", nullptr},
142  {"clang++", "--driver-mode=g++"},
143  {"clang-c++", "--driver-mode=g++"},
144  {"clang-cc", nullptr},
145  {"clang-cpp", "--driver-mode=cpp"},
146  {"clang-g++", "--driver-mode=g++"},
147  {"clang-gcc", nullptr},
148  {"clang-cl", "--driver-mode=cl"},
149  {"cc", nullptr},
150  {"cpp", "--driver-mode=cpp"},
151  {"cl", "--driver-mode=cl"},
152  {"++", "--driver-mode=g++"},
153  };
154 
155  for (size_t i = 0; i < llvm::array_lengthof(DriverSuffixes); ++i) {
156  StringRef Suffix(DriverSuffixes[i].Suffix);
157  if (ProgName.endswith(Suffix)) {
158  Pos = ProgName.size() - Suffix.size();
159  return &DriverSuffixes[i];
160  }
161  }
162  return nullptr;
163 }
164 
165 /// Normalize the program name from argv[0] by stripping the file extension if
166 /// present and lower-casing the string on Windows.
167 static std::string normalizeProgramName(llvm::StringRef Argv0) {
168  std::string ProgName = llvm::sys::path::stem(Argv0);
169 #ifdef _WIN32
170  // Transform to lowercase for case insensitive file systems.
171  std::transform(ProgName.begin(), ProgName.end(), ProgName.begin(), ::tolower);
172 #endif
173  return ProgName;
174 }
175 
176 static const DriverSuffix *parseDriverSuffix(StringRef ProgName, size_t &Pos) {
177  // Try to infer frontend type and default target from the program name by
178  // comparing it against DriverSuffixes in order.
179 
180  // If there is a match, the function tries to identify a target as prefix.
181  // E.g. "x86_64-linux-clang" as interpreted as suffix "clang" with target
182  // prefix "x86_64-linux". If such a target prefix is found, it may be
183  // added via -target as implicit first argument.
184  const DriverSuffix *DS = FindDriverSuffix(ProgName, Pos);
185 
186  if (!DS) {
187  // Try again after stripping any trailing version number:
188  // clang++3.5 -> clang++
189  ProgName = ProgName.rtrim("0123456789.");
190  DS = FindDriverSuffix(ProgName, Pos);
191  }
192 
193  if (!DS) {
194  // Try again after stripping trailing -component.
195  // clang++-tot -> clang++
196  ProgName = ProgName.slice(0, ProgName.rfind('-'));
197  DS = FindDriverSuffix(ProgName, Pos);
198  }
199  return DS;
200 }
201 
204  std::string ProgName = normalizeProgramName(PN);
205  size_t SuffixPos;
206  const DriverSuffix *DS = parseDriverSuffix(ProgName, SuffixPos);
207  if (!DS)
208  return {};
209  size_t SuffixEnd = SuffixPos + strlen(DS->Suffix);
210 
211  size_t LastComponent = ProgName.rfind('-', SuffixPos);
212  if (LastComponent == std::string::npos)
213  return ParsedClangName(ProgName.substr(0, SuffixEnd), DS->ModeFlag);
214  std::string ModeSuffix = ProgName.substr(LastComponent + 1,
215  SuffixEnd - LastComponent - 1);
216 
217  // Infer target from the prefix.
218  StringRef Prefix(ProgName);
219  Prefix = Prefix.slice(0, LastComponent);
220  std::string IgnoredError;
221  bool IsRegistered = llvm::TargetRegistry::lookupTarget(Prefix, IgnoredError);
222  return ParsedClangName{Prefix, ModeSuffix, DS->ModeFlag, IsRegistered};
223 }
224 
226  // In universal driver terms, the arch name accepted by -arch isn't exactly
227  // the same as the ones that appear in the triple. Roughly speaking, this is
228  // an inverse of the darwin::getArchTypeForDarwinArchName() function, but the
229  // only interesting special case is powerpc.
230  switch (Triple.getArch()) {
231  case llvm::Triple::ppc:
232  return "ppc";
233  case llvm::Triple::ppc64:
234  return "ppc64";
235  case llvm::Triple::ppc64le:
236  return "ppc64le";
237  default:
238  return Triple.getArchName();
239  }
240 }
241 
242 std::string ToolChain::getInputFilename(const InputInfo &Input) const {
243  return Input.getFilename();
244 }
245 
246 bool ToolChain::IsUnwindTablesDefault(const ArgList &Args) const {
247  return false;
248 }
249 
250 Tool *ToolChain::getClang() const {
251  if (!Clang)
252  Clang.reset(new tools::Clang(*this));
253  return Clang.get();
254 }
255 
257  return new tools::ClangAs(*this);
258 }
259 
261  llvm_unreachable("Linking is not supported by this toolchain");
262 }
263 
264 Tool *ToolChain::getAssemble() const {
265  if (!Assemble)
266  Assemble.reset(buildAssembler());
267  return Assemble.get();
268 }
269 
270 Tool *ToolChain::getClangAs() const {
271  if (!Assemble)
272  Assemble.reset(new tools::ClangAs(*this));
273  return Assemble.get();
274 }
275 
276 Tool *ToolChain::getLink() const {
277  if (!Link)
278  Link.reset(buildLinker());
279  return Link.get();
280 }
281 
282 Tool *ToolChain::getOffloadBundler() const {
283  if (!OffloadBundler)
284  OffloadBundler.reset(new tools::OffloadBundler(*this));
285  return OffloadBundler.get();
286 }
287 
289  switch (AC) {
291  return getAssemble();
292 
294  return getLink();
295 
296  case Action::InputClass:
302  llvm_unreachable("Invalid tool kind.");
303 
312  return getClang();
313 
316  return getOffloadBundler();
317  }
318 
319  llvm_unreachable("Invalid tool kind.");
320 }
321 
322 static StringRef getArchNameForCompilerRTLib(const ToolChain &TC,
323  const ArgList &Args) {
324  const llvm::Triple &Triple = TC.getTriple();
325  bool IsWindows = Triple.isOSWindows();
326 
327  if (TC.getArch() == llvm::Triple::arm || TC.getArch() == llvm::Triple::armeb)
328  return (arm::getARMFloatABI(TC, Args) == arm::FloatABI::Hard && !IsWindows)
329  ? "armhf"
330  : "arm";
331 
332  // For historic reasons, Android library is using i686 instead of i386.
333  if (TC.getArch() == llvm::Triple::x86 && Triple.isAndroid())
334  return "i686";
335 
336  return llvm::Triple::getArchTypeName(TC.getArch());
337 }
338 
339 StringRef ToolChain::getOSLibName() const {
340  switch (Triple.getOS()) {
341  case llvm::Triple::FreeBSD:
342  return "freebsd";
343  case llvm::Triple::NetBSD:
344  return "netbsd";
345  case llvm::Triple::OpenBSD:
346  return "openbsd";
347  case llvm::Triple::Solaris:
348  return "sunos";
349  default:
350  return getOS();
351  }
352 }
353 
354 std::string ToolChain::getCompilerRTPath() const {
355  SmallString<128> Path(getDriver().ResourceDir);
356  if (Triple.isOSUnknown()) {
357  llvm::sys::path::append(Path, "lib");
358  } else {
359  llvm::sys::path::append(Path, "lib", getOSLibName());
360  }
361  return Path.str();
362 }
363 
364 std::string ToolChain::getCompilerRT(const ArgList &Args, StringRef Component,
365  bool Shared) const {
366  const llvm::Triple &TT = getTriple();
367  bool IsITANMSVCWindows =
368  TT.isWindowsMSVCEnvironment() || TT.isWindowsItaniumEnvironment();
369 
370  const char *Prefix = IsITANMSVCWindows ? "" : "lib";
371  const char *Suffix = Shared ? (Triple.isOSWindows() ? ".lib" : ".so")
372  : (IsITANMSVCWindows ? ".lib" : ".a");
373  if (Shared && Triple.isWindowsGNUEnvironment())
374  Suffix = ".dll.a";
375 
376  for (const auto &LibPath : getLibraryPaths()) {
377  SmallString<128> P(LibPath);
378  llvm::sys::path::append(P, Prefix + Twine("clang_rt.") + Component + Suffix);
379  if (getVFS().exists(P))
380  return P.str();
381  }
382 
383  StringRef Arch = getArchNameForCompilerRTLib(*this, Args);
384  const char *Env = TT.isAndroid() ? "-android" : "";
386  llvm::sys::path::append(Path, Prefix + Twine("clang_rt.") + Component + "-" +
387  Arch + Env + Suffix);
388  return Path.str();
389 }
390 
391 const char *ToolChain::getCompilerRTArgString(const llvm::opt::ArgList &Args,
392  StringRef Component,
393  bool Shared) const {
394  return Args.MakeArgString(getCompilerRT(Args, Component, Shared));
395 }
396 
398  SmallString<128> Path(getDriver().ResourceDir);
399  llvm::sys::path::append(Path, "lib", getOSLibName(),
400  llvm::Triple::getArchTypeName(getArch()));
401  return Path.str();
402 }
403 
404 bool ToolChain::needsProfileRT(const ArgList &Args) {
405  if (needsGCovInstrumentation(Args) ||
406  Args.hasArg(options::OPT_fprofile_generate) ||
407  Args.hasArg(options::OPT_fprofile_generate_EQ) ||
408  Args.hasArg(options::OPT_fprofile_instr_generate) ||
409  Args.hasArg(options::OPT_fprofile_instr_generate_EQ) ||
410  Args.hasArg(options::OPT_fcreate_profile))
411  return true;
412 
413  return false;
414 }
415 
416 bool ToolChain::needsGCovInstrumentation(const llvm::opt::ArgList &Args) {
417  return Args.hasFlag(options::OPT_fprofile_arcs, options::OPT_fno_profile_arcs,
418  false) ||
419  Args.hasArg(options::OPT_coverage);
420 }
421 
423  if (getDriver().ShouldUseClangCompiler(JA)) return getClang();
424  Action::ActionClass AC = JA.getKind();
426  return getClangAs();
427  return getTool(AC);
428 }
429 
430 std::string ToolChain::GetFilePath(const char *Name) const {
431  return D.GetFilePath(Name, *this);
432 }
433 
434 std::string ToolChain::GetProgramPath(const char *Name) const {
435  return D.GetProgramPath(Name, *this);
436 }
437 
438 std::string ToolChain::GetLinkerPath() const {
439  const Arg* A = Args.getLastArg(options::OPT_fuse_ld_EQ);
440  StringRef UseLinker = A ? A->getValue() : CLANG_DEFAULT_LINKER;
441 
442  if (llvm::sys::path::is_absolute(UseLinker)) {
443  // If we're passed what looks like an absolute path, don't attempt to
444  // second-guess that.
445  if (llvm::sys::fs::can_execute(UseLinker))
446  return UseLinker;
447  } else if (UseLinker.empty() || UseLinker == "ld") {
448  // If we're passed -fuse-ld= with no argument, or with the argument ld,
449  // then use whatever the default system linker is.
451  } else {
452  llvm::SmallString<8> LinkerName;
453  if (Triple.isOSDarwin())
454  LinkerName.append("ld64.");
455  else
456  LinkerName.append("ld.");
457  LinkerName.append(UseLinker);
458 
459  std::string LinkerPath(GetProgramPath(LinkerName.c_str()));
460  if (llvm::sys::fs::can_execute(LinkerPath))
461  return LinkerPath;
462  }
463 
464  if (A)
465  getDriver().Diag(diag::err_drv_invalid_linker_name) << A->getAsString(Args);
466 
468 }
469 
471  return types::lookupTypeForExtension(Ext);
472 }
473 
475  return false;
476 }
477 
479  llvm::Triple HostTriple(LLVM_HOST_TRIPLE);
480  switch (HostTriple.getArch()) {
481  // The A32/T32/T16 instruction sets are not separate architectures in this
482  // context.
483  case llvm::Triple::arm:
484  case llvm::Triple::armeb:
485  case llvm::Triple::thumb:
486  case llvm::Triple::thumbeb:
487  return getArch() != llvm::Triple::arm && getArch() != llvm::Triple::thumb &&
488  getArch() != llvm::Triple::armeb && getArch() != llvm::Triple::thumbeb;
489  default:
490  return HostTriple.getArch() != getArch();
491  }
492 }
493 
495  return ObjCRuntime(isNonFragile ? ObjCRuntime::GNUstep : ObjCRuntime::GCC,
496  VersionTuple());
497 }
498 
499 llvm::ExceptionHandling
500 ToolChain::GetExceptionModel(const llvm::opt::ArgList &Args) const {
502 }
503 
504 bool ToolChain::isThreadModelSupported(const StringRef Model) const {
505  if (Model == "single") {
506  // FIXME: 'single' is only supported on ARM and WebAssembly so far.
507  return Triple.getArch() == llvm::Triple::arm ||
508  Triple.getArch() == llvm::Triple::armeb ||
509  Triple.getArch() == llvm::Triple::thumb ||
510  Triple.getArch() == llvm::Triple::thumbeb ||
511  Triple.getArch() == llvm::Triple::wasm32 ||
512  Triple.getArch() == llvm::Triple::wasm64;
513  } else if (Model == "posix")
514  return true;
515 
516  return false;
517 }
518 
519 std::string ToolChain::ComputeLLVMTriple(const ArgList &Args,
520  types::ID InputType) const {
521  switch (getTriple().getArch()) {
522  default:
523  return getTripleString();
524 
525  case llvm::Triple::x86_64: {
526  llvm::Triple Triple = getTriple();
527  if (!Triple.isOSBinFormatMachO())
528  return getTripleString();
529 
530  if (Arg *A = Args.getLastArg(options::OPT_march_EQ)) {
531  // x86_64h goes in the triple. Other -march options just use the
532  // vanilla triple we already have.
533  StringRef MArch = A->getValue();
534  if (MArch == "x86_64h")
535  Triple.setArchName(MArch);
536  }
537  return Triple.getTriple();
538  }
539  case llvm::Triple::aarch64: {
540  llvm::Triple Triple = getTriple();
541  if (!Triple.isOSBinFormatMachO())
542  return getTripleString();
543 
544  // FIXME: older versions of ld64 expect the "arm64" component in the actual
545  // triple string and query it to determine whether an LTO file can be
546  // handled. Remove this when we don't care any more.
547  Triple.setArchName("arm64");
548  return Triple.getTriple();
549  }
550  case llvm::Triple::arm:
551  case llvm::Triple::armeb:
552  case llvm::Triple::thumb:
553  case llvm::Triple::thumbeb: {
554  // FIXME: Factor into subclasses.
555  llvm::Triple Triple = getTriple();
556  bool IsBigEndian = getTriple().getArch() == llvm::Triple::armeb ||
557  getTriple().getArch() == llvm::Triple::thumbeb;
558 
559  // Handle pseudo-target flags '-mlittle-endian'/'-EL' and
560  // '-mbig-endian'/'-EB'.
561  if (Arg *A = Args.getLastArg(options::OPT_mlittle_endian,
562  options::OPT_mbig_endian)) {
563  IsBigEndian = !A->getOption().matches(options::OPT_mlittle_endian);
564  }
565 
566  // Thumb2 is the default for V7 on Darwin.
567  //
568  // FIXME: Thumb should just be another -target-feaure, not in the triple.
569  StringRef MCPU, MArch;
570  if (const Arg *A = Args.getLastArg(options::OPT_mcpu_EQ))
571  MCPU = A->getValue();
572  if (const Arg *A = Args.getLastArg(options::OPT_march_EQ))
573  MArch = A->getValue();
574  std::string CPU =
575  Triple.isOSBinFormatMachO()
576  ? tools::arm::getARMCPUForMArch(MArch, Triple).str()
577  : tools::arm::getARMTargetCPU(MCPU, MArch, Triple);
578  StringRef Suffix =
579  tools::arm::getLLVMArchSuffixForARM(CPU, MArch, Triple);
580  bool IsMProfile = ARM::parseArchProfile(Suffix) == ARM::ProfileKind::M;
581  bool ThumbDefault = IsMProfile || (ARM::parseArchVersion(Suffix) == 7 &&
582  getTriple().isOSBinFormatMachO());
583  // FIXME: this is invalid for WindowsCE
584  if (getTriple().isOSWindows())
585  ThumbDefault = true;
586  std::string ArchName;
587  if (IsBigEndian)
588  ArchName = "armeb";
589  else
590  ArchName = "arm";
591 
592  // Check if ARM ISA was explicitly selected (using -mno-thumb or -marm) for
593  // M-Class CPUs/architecture variants, which is not supported.
594  bool ARMModeRequested = !Args.hasFlag(options::OPT_mthumb,
595  options::OPT_mno_thumb, ThumbDefault);
596  if (IsMProfile && ARMModeRequested) {
597  if (!MCPU.empty())
598  getDriver().Diag(diag::err_cpu_unsupported_isa) << CPU << "ARM";
599  else
600  getDriver().Diag(diag::err_arch_unsupported_isa)
601  << tools::arm::getARMArch(MArch, getTriple()) << "ARM";
602  }
603 
604  // Check to see if an explicit choice to use thumb has been made via
605  // -mthumb. For assembler files we must check for -mthumb in the options
606  // passed to the assembler via -Wa or -Xassembler.
607  bool IsThumb = false;
608  if (InputType != types::TY_PP_Asm)
609  IsThumb = Args.hasFlag(options::OPT_mthumb, options::OPT_mno_thumb,
610  ThumbDefault);
611  else {
612  // Ideally we would check for these flags in
613  // CollectArgsForIntegratedAssembler but we can't change the ArchName at
614  // that point. There is no assembler equivalent of -mno-thumb, -marm, or
615  // -mno-arm.
616  for (const auto *A :
617  Args.filtered(options::OPT_Wa_COMMA, options::OPT_Xassembler)) {
618  for (StringRef Value : A->getValues()) {
619  if (Value == "-mthumb")
620  IsThumb = true;
621  }
622  }
623  }
624  // Assembly files should start in ARM mode, unless arch is M-profile, or
625  // -mthumb has been passed explicitly to the assembler. Windows is always
626  // thumb.
627  if (IsThumb || IsMProfile || getTriple().isOSWindows()) {
628  if (IsBigEndian)
629  ArchName = "thumbeb";
630  else
631  ArchName = "thumb";
632  }
633  Triple.setArchName(ArchName + Suffix.str());
634 
635  return Triple.getTriple();
636  }
637  }
638 }
639 
640 std::string ToolChain::ComputeEffectiveClangTriple(const ArgList &Args,
641  types::ID InputType) const {
642  return ComputeLLVMTriple(Args, InputType);
643 }
644 
645 void ToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
646  ArgStringList &CC1Args) const {
647  // Each toolchain should provide the appropriate include flags.
648 }
649 
651  const ArgList &DriverArgs, ArgStringList &CC1Args,
652  Action::OffloadKind DeviceOffloadKind) const {}
653 
654 void ToolChain::addClangWarningOptions(ArgStringList &CC1Args) const {}
655 
656 void ToolChain::addProfileRTLibs(const llvm::opt::ArgList &Args,
657  llvm::opt::ArgStringList &CmdArgs) const {
658  if (!needsProfileRT(Args)) return;
659 
660  CmdArgs.push_back(getCompilerRTArgString(Args, "profile"));
661 }
662 
664  const ArgList &Args) const {
665  const Arg* A = Args.getLastArg(options::OPT_rtlib_EQ);
666  StringRef LibName = A ? A->getValue() : CLANG_DEFAULT_RTLIB;
667 
668  // Only use "platform" in tests to override CLANG_DEFAULT_RTLIB!
669  if (LibName == "compiler-rt")
671  else if (LibName == "libgcc")
672  return ToolChain::RLT_Libgcc;
673  else if (LibName == "platform")
674  return GetDefaultRuntimeLibType();
675 
676  if (A)
677  getDriver().Diag(diag::err_drv_invalid_rtlib_name) << A->getAsString(Args);
678 
679  return GetDefaultRuntimeLibType();
680 }
681 
683  const Arg *A = Args.getLastArg(options::OPT_stdlib_EQ);
684  StringRef LibName = A ? A->getValue() : CLANG_DEFAULT_CXX_STDLIB;
685 
686  // Only use "platform" in tests to override CLANG_DEFAULT_CXX_STDLIB!
687  if (LibName == "libc++")
688  return ToolChain::CST_Libcxx;
689  else if (LibName == "libstdc++")
691  else if (LibName == "platform")
692  return GetDefaultCXXStdlibType();
693 
694  if (A)
695  getDriver().Diag(diag::err_drv_invalid_stdlib_name) << A->getAsString(Args);
696 
697  return GetDefaultCXXStdlibType();
698 }
699 
700 /// Utility function to add a system include directory to CC1 arguments.
701 /*static*/ void ToolChain::addSystemInclude(const ArgList &DriverArgs,
702  ArgStringList &CC1Args,
703  const Twine &Path) {
704  CC1Args.push_back("-internal-isystem");
705  CC1Args.push_back(DriverArgs.MakeArgString(Path));
706 }
707 
708 /// Utility function to add a system include directory with extern "C"
709 /// semantics to CC1 arguments.
710 ///
711 /// Note that this should be used rarely, and only for directories that
712 /// historically and for legacy reasons are treated as having implicit extern
713 /// "C" semantics. These semantics are *ignored* by and large today, but its
714 /// important to preserve the preprocessor changes resulting from the
715 /// classification.
716 /*static*/ void ToolChain::addExternCSystemInclude(const ArgList &DriverArgs,
717  ArgStringList &CC1Args,
718  const Twine &Path) {
719  CC1Args.push_back("-internal-externc-isystem");
720  CC1Args.push_back(DriverArgs.MakeArgString(Path));
721 }
722 
723 void ToolChain::addExternCSystemIncludeIfExists(const ArgList &DriverArgs,
724  ArgStringList &CC1Args,
725  const Twine &Path) {
726  if (llvm::sys::fs::exists(Path))
727  addExternCSystemInclude(DriverArgs, CC1Args, Path);
728 }
729 
730 /// Utility function to add a list of system include directories to CC1.
731 /*static*/ void ToolChain::addSystemIncludes(const ArgList &DriverArgs,
732  ArgStringList &CC1Args,
733  ArrayRef<StringRef> Paths) {
734  for (const auto Path : Paths) {
735  CC1Args.push_back("-internal-isystem");
736  CC1Args.push_back(DriverArgs.MakeArgString(Path));
737  }
738 }
739 
740 void ToolChain::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
741  ArgStringList &CC1Args) const {
742  // Header search paths should be handled by each of the subclasses.
743  // Historically, they have not been, and instead have been handled inside of
744  // the CC1-layer frontend. As the logic is hoisted out, this generic function
745  // will slowly stop being called.
746  //
747  // While it is being called, replicate a bit of a hack to propagate the
748  // '-stdlib=' flag down to CC1 so that it can in turn customize the C++
749  // header search paths with it. Once all systems are overriding this
750  // function, the CC1 flag and this line can be removed.
751  DriverArgs.AddAllArgs(CC1Args, options::OPT_stdlib_EQ);
752 }
753 
754 bool ToolChain::ShouldLinkCXXStdlib(const llvm::opt::ArgList &Args) const {
755  return getDriver().CCCIsCXX() &&
756  !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs,
757  options::OPT_nostdlibxx);
758 }
759 
760 void ToolChain::AddCXXStdlibLibArgs(const ArgList &Args,
761  ArgStringList &CmdArgs) const {
762  assert(!Args.hasArg(options::OPT_nostdlibxx) &&
763  "should not have called this");
765 
766  switch (Type) {
768  CmdArgs.push_back("-lc++");
769  break;
770 
772  CmdArgs.push_back("-lstdc++");
773  break;
774  }
775 }
776 
777 void ToolChain::AddFilePathLibArgs(const ArgList &Args,
778  ArgStringList &CmdArgs) const {
779  for (const auto &LibPath : getLibraryPaths())
780  if(LibPath.length() > 0)
781  CmdArgs.push_back(Args.MakeArgString(StringRef("-L") + LibPath));
782 
783  for (const auto &LibPath : getFilePaths())
784  if(LibPath.length() > 0)
785  CmdArgs.push_back(Args.MakeArgString(StringRef("-L") + LibPath));
786 }
787 
788 void ToolChain::AddCCKextLibArgs(const ArgList &Args,
789  ArgStringList &CmdArgs) const {
790  CmdArgs.push_back("-lcc_kext");
791 }
792 
794  ArgStringList &CmdArgs) const {
795  // Do not check for -fno-fast-math or -fno-unsafe-math when -Ofast passed
796  // (to keep the linker options consistent with gcc and clang itself).
797  if (!isOptimizationLevelFast(Args)) {
798  // Check if -ffast-math or -funsafe-math.
799  Arg *A =
800  Args.getLastArg(options::OPT_ffast_math, options::OPT_fno_fast_math,
801  options::OPT_funsafe_math_optimizations,
802  options::OPT_fno_unsafe_math_optimizations);
803 
804  if (!A || A->getOption().getID() == options::OPT_fno_fast_math ||
805  A->getOption().getID() == options::OPT_fno_unsafe_math_optimizations)
806  return false;
807  }
808  // If crtfastmath.o exists add it to the arguments.
809  std::string Path = GetFilePath("crtfastmath.o");
810  if (Path == "crtfastmath.o") // Not found.
811  return false;
812 
813  CmdArgs.push_back(Args.MakeArgString(Path));
814  return true;
815 }
816 
818  // Return sanitizers which don't require runtime support and are not
819  // platform dependent.
820 
821  using namespace SanitizerKind;
822 
823  SanitizerMask Res = (Undefined & ~Vptr & ~Function) | (CFI & ~CFIICall) |
824  CFICastStrict | UnsignedIntegerOverflow |
825  ImplicitConversion | Nullability | LocalBounds;
826  if (getTriple().getArch() == llvm::Triple::x86 ||
827  getTriple().getArch() == llvm::Triple::x86_64 ||
828  getTriple().getArch() == llvm::Triple::arm ||
829  getTriple().getArch() == llvm::Triple::aarch64 ||
830  getTriple().getArch() == llvm::Triple::wasm32 ||
831  getTriple().getArch() == llvm::Triple::wasm64)
832  Res |= CFIICall;
833  if (getTriple().getArch() == llvm::Triple::x86_64 ||
834  getTriple().getArch() == llvm::Triple::aarch64)
835  Res |= ShadowCallStack;
836  return Res;
837 }
838 
839 void ToolChain::AddCudaIncludeArgs(const ArgList &DriverArgs,
840  ArgStringList &CC1Args) const {}
841 
842 void ToolChain::AddIAMCUIncludeArgs(const ArgList &DriverArgs,
843  ArgStringList &CC1Args) const {}
844 
845 static VersionTuple separateMSVCFullVersion(unsigned Version) {
846  if (Version < 100)
847  return VersionTuple(Version);
848 
849  if (Version < 10000)
850  return VersionTuple(Version / 100, Version % 100);
851 
852  unsigned Build = 0, Factor = 1;
853  for (; Version > 10000; Version = Version / 10, Factor = Factor * 10)
854  Build = Build + (Version % 10) * Factor;
855  return VersionTuple(Version / 100, Version % 100, Build);
856 }
857 
858 VersionTuple
860  const llvm::opt::ArgList &Args) const {
861  const Arg *MSCVersion = Args.getLastArg(options::OPT_fmsc_version);
862  const Arg *MSCompatibilityVersion =
863  Args.getLastArg(options::OPT_fms_compatibility_version);
864 
865  if (MSCVersion && MSCompatibilityVersion) {
866  if (D)
867  D->Diag(diag::err_drv_argument_not_allowed_with)
868  << MSCVersion->getAsString(Args)
869  << MSCompatibilityVersion->getAsString(Args);
870  return VersionTuple();
871  }
872 
873  if (MSCompatibilityVersion) {
874  VersionTuple MSVT;
875  if (MSVT.tryParse(MSCompatibilityVersion->getValue())) {
876  if (D)
877  D->Diag(diag::err_drv_invalid_value)
878  << MSCompatibilityVersion->getAsString(Args)
879  << MSCompatibilityVersion->getValue();
880  } else {
881  return MSVT;
882  }
883  }
884 
885  if (MSCVersion) {
886  unsigned Version = 0;
887  if (StringRef(MSCVersion->getValue()).getAsInteger(10, Version)) {
888  if (D)
889  D->Diag(diag::err_drv_invalid_value)
890  << MSCVersion->getAsString(Args) << MSCVersion->getValue();
891  } else {
892  return separateMSVCFullVersion(Version);
893  }
894  }
895 
896  return VersionTuple();
897 }
898 
899 llvm::opt::DerivedArgList *ToolChain::TranslateOpenMPTargetArgs(
900  const llvm::opt::DerivedArgList &Args, bool SameTripleAsHost,
901  SmallVectorImpl<llvm::opt::Arg *> &AllocatedArgs) const {
902  DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs());
903  const OptTable &Opts = getDriver().getOpts();
904  bool Modified = false;
905 
906  // Handle -Xopenmp-target flags
907  for (auto *A : Args) {
908  // Exclude flags which may only apply to the host toolchain.
909  // Do not exclude flags when the host triple (AuxTriple)
910  // matches the current toolchain triple. If it is not present
911  // at all, target and host share a toolchain.
912  if (A->getOption().matches(options::OPT_m_Group)) {
913  if (SameTripleAsHost)
914  DAL->append(A);
915  else
916  Modified = true;
917  continue;
918  }
919 
920  unsigned Index;
921  unsigned Prev;
922  bool XOpenMPTargetNoTriple =
923  A->getOption().matches(options::OPT_Xopenmp_target);
924 
925  if (A->getOption().matches(options::OPT_Xopenmp_target_EQ)) {
926  // Passing device args: -Xopenmp-target=<triple> -opt=val.
927  if (A->getValue(0) == getTripleString())
928  Index = Args.getBaseArgs().MakeIndex(A->getValue(1));
929  else
930  continue;
931  } else if (XOpenMPTargetNoTriple) {
932  // Passing device args: -Xopenmp-target -opt=val.
933  Index = Args.getBaseArgs().MakeIndex(A->getValue(0));
934  } else {
935  DAL->append(A);
936  continue;
937  }
938 
939  // Parse the argument to -Xopenmp-target.
940  Prev = Index;
941  std::unique_ptr<Arg> XOpenMPTargetArg(Opts.ParseOneArg(Args, Index));
942  if (!XOpenMPTargetArg || Index > Prev + 1) {
943  getDriver().Diag(diag::err_drv_invalid_Xopenmp_target_with_args)
944  << A->getAsString(Args);
945  continue;
946  }
947  if (XOpenMPTargetNoTriple && XOpenMPTargetArg &&
948  Args.getAllArgValues(options::OPT_fopenmp_targets_EQ).size() != 1) {
949  getDriver().Diag(diag::err_drv_Xopenmp_target_missing_triple);
950  continue;
951  }
952  XOpenMPTargetArg->setBaseArg(A);
953  A = XOpenMPTargetArg.release();
954  AllocatedArgs.push_back(A);
955  DAL->append(A);
956  Modified = true;
957  }
958 
959  if (Modified)
960  return DAL;
961 
962  delete DAL;
963  return nullptr;
964 }
virtual void addClangWarningOptions(llvm::opt::ArgStringList &CC1Args) const
Add warning options that need to be passed to cc1 for this target.
Definition: ToolChain.cpp:654
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:716
void setTripleEnvironment(llvm::Triple::EnvironmentType Env)
Definition: ToolChain.cpp:93
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:519
static void addExternCSystemIncludeIfExists(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, const Twine &Path)
Definition: ToolChain.cpp:723
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:788
virtual const char * getDefaultLinker() const
GetDefaultLinker - Get the default linker to use.
Definition: ToolChain.h:359
DominatorTree GraphTraits specialization so the DominatorTree can be iterable by generic graph iterat...
Definition: Dominators.h:29
virtual ObjCRuntime getDefaultObjCRuntime(bool isNonFragile) const
getDefaultObjCRuntime - Return the default Objective-C runtime for this platform. ...
Definition: ToolChain.cpp:494
const char * getCompilerRTArgString(const llvm::opt::ArgList &Args, StringRef Component, bool Shared=false) const
Definition: ToolChain.cpp:391
StringRef P
Defines types useful for describing an Objective-C runtime.
The base class of the type hierarchy.
Definition: Type.h:1403
const XRayArgs & getXRayArgs() const
Definition: ToolChain.cpp:121
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:740
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:504
std::string getTargetTriple() const
Definition: Driver.h:307
virtual bool IsUnwindTablesDefault(const llvm::opt::ArgList &Args) const
IsUnwindTablesDefault - Does this tool chain use -funwind-tables by default.
Definition: ToolChain.cpp:246
DiagnosticBuilder Diag(unsigned DiagID) const
Definition: Driver.h:108
&#39;gcc&#39; is the Objective-C runtime shipped with GCC, implementing a fragile Objective-C ABI ...
Definition: ObjCRuntime.h:52
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:203
static VersionTuple separateMSVCFullVersion(unsigned Version)
Definition: ToolChain.cpp:845
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:656
std::string GetLinkerPath() const
Returns the linker path, respecting the -fuse-ld= argument to determine the linker suffix or name...
Definition: ToolChain.cpp:438
FloatABI getARMFloatABI(const ToolChain &TC, const llvm::opt::ArgList &Args)
Clang integrated assembler tool.
Definition: Clang.h:114
Defines the clang::SanitizerKind enum.
const std::string getARMArch(llvm::StringRef Arch, const llvm::Triple &Triple)
const char * getFilename() const
Definition: InputInfo.h:83
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:645
static StringRef getArchNameForCompilerRTLib(const ToolChain &TC, const ArgList &Args)
Definition: ToolChain.cpp:322
StringRef getOSLibName() const
Definition: ToolChain.cpp:339
static bool needsProfileRT(const llvm::opt::ArgList &Args)
needsProfileRT - returns true if instrumentation profile is on.
Definition: ToolChain.cpp:404
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:22
std::string GetFilePath(const char *Name) const
Definition: ToolChain.cpp:430
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:793
Driver - Encapsulate logic for constructing compilation processes from a set of gcc-driver-like comma...
Definition: Driver.h:57
ToolChain(const Driver &D, const llvm::Triple &T, const llvm::opt::ArgList &Args)
Definition: ToolChain.cpp:72
virtual bool IsIntegratedAssemblerDefault() const
IsIntegratedAssemblerDefault - Does this tool chain enable -integrated-as by default.
Definition: ToolChain.h:323
llvm::vfs::FileSystem & getVFS() const
Definition: Driver.h:296
virtual bool useRelaxRelocations() const
Check whether to enable x86 relax relocations by default.
Definition: ToolChain.cpp:111
virtual bool useIntegratedAs() const
Check if the toolchain should use the integrated assembler.
Definition: ToolChain.cpp:105
ActionClass getKind() const
Definition: Action.h:139
virtual VersionTuple computeMSVCVersion(const Driver *D, const llvm::opt::ArgList &Args) const
On Windows, returns the MSVC compatibility version.
Definition: ToolChain.cpp:859
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:731
virtual llvm::ExceptionHandling GetExceptionModel(const llvm::opt::ArgList &Args) const
GetExceptionModel - Return the tool chain exception model.
Definition: ToolChain.cpp:500
static llvm::opt::Arg * GetRTTIArgument(const ArgList &Args)
Definition: ToolChain.cpp:52
virtual Tool * buildLinker() const
Definition: ToolChain.cpp:260
static const DriverSuffix * parseDriverSuffix(StringRef ProgName, size_t &Pos)
Definition: ToolChain.cpp:176
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:899
virtual types::ID LookupTypeForExtension(StringRef Ext) const
LookupTypeForExtension - Return the default language type to use for the given extension.
Definition: ToolChain.cpp:470
static const DriverSuffix * FindDriverSuffix(StringRef ProgName, size_t &Pos)
Definition: ToolChain.cpp:136
virtual std::string getCompilerRT(const llvm::opt::ArgList &Args, StringRef Component, bool Shared=false) const
Definition: ToolChain.cpp:364
&#39;gnustep&#39; is the modern non-fragile GNUstep runtime.
Definition: ObjCRuntime.h:55
virtual CXXStdlibType GetDefaultCXXStdlibType() const
Definition: ToolChain.h:366
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:839
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:242
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:777
Offload bundler tool.
Definition: Clang.h:133
const Driver & getDriver() const
Definition: ToolChain.h:185
bool CCCIsCXX() const
Whether the driver should follow g++ like behavior.
Definition: Driver.h:172
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:701
virtual bool HasNativeLLVMSupport() const
HasNativeLTOLinker - Check whether the linker and related tools have native LLVM support.
Definition: ToolChain.cpp:474
constexpr XRayInstrMask None
Definition: XRayInstr.h:37
virtual RuntimeLibType GetRuntimeLibType(const llvm::opt::ArgList &Args) const
Definition: ToolChain.cpp:663
llvm::vfs::FileSystem & getVFS() const
Definition: ToolChain.cpp:101
virtual Tool * buildAssembler() const
Definition: ToolChain.cpp:256
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:754
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:640
Clang compiler tool.
Definition: Clang.h:28
static ToolChain::RTTIMode CalculateRTTIMode(const ArgList &Args, const llvm::Triple &Triple, const Arg *CachedRTTIArg)
Definition: ToolChain.cpp:57
The basic abstraction for the target Objective-C runtime.
Definition: ObjCRuntime.h:27
Tool - Information on a specific compilation tool.
Definition: Tool.h:33
const SanitizerArgs & getSanitizerArgs() const
Definition: ToolChain.cpp:115
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:167
uint64_t SanitizerMask
Definition: Sanitizers.h:25
StringRef getDefaultUniversalArchName() const
Provide the default architecture name (as expected by -arch) for this toolchain.
Definition: ToolChain.cpp:225
const llvm::Triple & getTriple() const
Definition: ToolChain.h:187
virtual SanitizerMask getSupportedSanitizers() const
Return sanitizers which are available in this toolchain.
Definition: ToolChain.cpp:817
ID lookupTypeForExtension(llvm::StringRef Ext)
lookupTypeForExtension - Lookup the type to use for the file extension Ext.
Definition: Types.cpp:194
std::string getArchSpecificLibPath() const
Definition: ToolChain.cpp:397
virtual Tool * getTool(Action::ActionClass AC) const
Definition: ToolChain.cpp:288
virtual std::string getCompilerRTPath() const
Definition: ToolChain.cpp:354
std::string GetProgramPath(const char *Name) const
Definition: ToolChain.cpp:434
static bool needsGCovInstrumentation(const llvm::opt::ArgList &Args)
Returns true if gcov instrumentation (-fprofile-arcs or –coverage) is on.
Definition: ToolChain.cpp:416
const llvm::opt::OptTable & getOpts() const
Definition: Driver.h:292
virtual bool isCrossCompiling() const
Returns true if the toolchain is targeting a non-native architecture.
Definition: ToolChain.cpp:478
virtual CXXStdlibType GetCXXStdlibType(const llvm::opt::ArgList &Args) const
Definition: ToolChain.cpp:682
virtual Tool * SelectTool(const JobAction &JA) const
Choose a tool to use to handle the action JA.
Definition: ToolChain.cpp:422
virtual void AddIAMCUIncludeArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Add arguments to use MCU GCC toolchain includes.
Definition: ToolChain.cpp:842
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:650
virtual RuntimeLibType GetDefaultRuntimeLibType() const
GetDefaultRuntimeLibType - Get the default runtime library variant to use.
Definition: ToolChain.h:362
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:760
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:131