clang  10.0.0svn
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)) {
76  if (D.CCCIsCXX()) {
77  if (auto CXXStdlibPath = getCXXStdlibPath())
78  getFilePaths().push_back(*CXXStdlibPath);
79  }
80 
81  if (auto RuntimePath = getRuntimePath())
82  getLibraryPaths().push_back(*RuntimePath);
83 
84  std::string CandidateLibPath = getArchSpecificLibPath();
85  if (getVFS().exists(CandidateLibPath))
86  getFilePaths().push_back(CandidateLibPath);
87 }
88 
89 void ToolChain::setTripleEnvironment(llvm::Triple::EnvironmentType Env) {
90  Triple.setEnvironment(Env);
91  if (EffectiveTriple != llvm::Triple())
92  EffectiveTriple.setEnvironment(Env);
93 }
94 
95 ToolChain::~ToolChain() = default;
96 
97 llvm::vfs::FileSystem &ToolChain::getVFS() const {
98  return getDriver().getVFS();
99 }
100 
102  return Args.hasFlag(options::OPT_fintegrated_as,
103  options::OPT_fno_integrated_as,
105 }
106 
108  return ENABLE_X86_RELAX_RELOCATIONS;
109 }
110 
112  return false;
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  FileType Type) const {
366  const llvm::Triple &TT = getTriple();
367  bool IsITANMSVCWindows =
368  TT.isWindowsMSVCEnvironment() || TT.isWindowsItaniumEnvironment();
369 
370  const char *Prefix =
371  IsITANMSVCWindows || Type == ToolChain::FT_Object ? "" : "lib";
372  const char *Suffix;
373  switch (Type) {
375  Suffix = IsITANMSVCWindows ? ".obj" : ".o";
376  break;
378  Suffix = IsITANMSVCWindows ? ".lib" : ".a";
379  break;
381  Suffix = Triple.isOSWindows()
382  ? (Triple.isWindowsGNUEnvironment() ? ".dll.a" : ".lib")
383  : ".so";
384  break;
385  }
386 
387  for (const auto &LibPath : getLibraryPaths()) {
388  SmallString<128> P(LibPath);
389  llvm::sys::path::append(P, Prefix + Twine("clang_rt.") + Component + Suffix);
390  if (getVFS().exists(P))
391  return P.str();
392  }
393 
394  StringRef Arch = getArchNameForCompilerRTLib(*this, Args);
395  const char *Env = TT.isAndroid() ? "-android" : "";
397  llvm::sys::path::append(Path, Prefix + Twine("clang_rt.") + Component + "-" +
398  Arch + Env + Suffix);
399  return Path.str();
400 }
401 
402 const char *ToolChain::getCompilerRTArgString(const llvm::opt::ArgList &Args,
403  StringRef Component,
404  FileType Type) const {
405  return Args.MakeArgString(getCompilerRT(Args, Component, Type));
406 }
407 
408 
411 
412  // First try the triple passed to driver as --target=<triple>.
413  P.assign(D.ResourceDir);
414  llvm::sys::path::append(P, "lib", D.getTargetTriple());
415  if (getVFS().exists(P))
416  return llvm::Optional<std::string>(P.str());
417 
418  // Second try the normalized triple.
419  P.assign(D.ResourceDir);
420  llvm::sys::path::append(P, "lib", Triple.str());
421  if (getVFS().exists(P))
422  return llvm::Optional<std::string>(P.str());
423 
424  return None;
425 }
426 
429 
430  // First try the triple passed to driver as --target=<triple>.
431  P.assign(D.Dir);
432  llvm::sys::path::append(P, "..", "lib", D.getTargetTriple(), "c++");
433  if (getVFS().exists(P))
434  return llvm::Optional<std::string>(P.str());
435 
436  // Second try the normalized triple.
437  P.assign(D.Dir);
438  llvm::sys::path::append(P, "..", "lib", Triple.str(), "c++");
439  if (getVFS().exists(P))
440  return llvm::Optional<std::string>(P.str());
441 
442  return None;
443 }
444 
446  SmallString<128> Path(getDriver().ResourceDir);
447  llvm::sys::path::append(Path, "lib", getOSLibName(),
448  llvm::Triple::getArchTypeName(getArch()));
449  return Path.str();
450 }
451 
452 bool ToolChain::needsProfileRT(const ArgList &Args) {
453  if (Args.hasArg(options::OPT_noprofilelib))
454  return false;
455 
456  if (needsGCovInstrumentation(Args) ||
457  Args.hasArg(options::OPT_fprofile_generate) ||
458  Args.hasArg(options::OPT_fprofile_generate_EQ) ||
459  Args.hasArg(options::OPT_fcs_profile_generate) ||
460  Args.hasArg(options::OPT_fcs_profile_generate_EQ) ||
461  Args.hasArg(options::OPT_fprofile_instr_generate) ||
462  Args.hasArg(options::OPT_fprofile_instr_generate_EQ) ||
463  Args.hasArg(options::OPT_fcreate_profile) ||
464  Args.hasArg(options::OPT_forder_file_instrumentation))
465  return true;
466 
467  return false;
468 }
469 
470 bool ToolChain::needsGCovInstrumentation(const llvm::opt::ArgList &Args) {
471  return Args.hasFlag(options::OPT_fprofile_arcs, options::OPT_fno_profile_arcs,
472  false) ||
473  Args.hasArg(options::OPT_coverage);
474 }
475 
477  if (getDriver().ShouldUseClangCompiler(JA)) return getClang();
478  Action::ActionClass AC = JA.getKind();
480  return getClangAs();
481  return getTool(AC);
482 }
483 
484 std::string ToolChain::GetFilePath(const char *Name) const {
485  return D.GetFilePath(Name, *this);
486 }
487 
488 std::string ToolChain::GetProgramPath(const char *Name) const {
489  return D.GetProgramPath(Name, *this);
490 }
491 
492 std::string ToolChain::GetLinkerPath() const {
493  const Arg* A = Args.getLastArg(options::OPT_fuse_ld_EQ);
494  StringRef UseLinker = A ? A->getValue() : CLANG_DEFAULT_LINKER;
495 
496  if (llvm::sys::path::is_absolute(UseLinker)) {
497  // If we're passed what looks like an absolute path, don't attempt to
498  // second-guess that.
499  if (llvm::sys::fs::can_execute(UseLinker))
500  return UseLinker;
501  } else if (UseLinker.empty() || UseLinker == "ld") {
502  // If we're passed -fuse-ld= with no argument, or with the argument ld,
503  // then use whatever the default system linker is.
505  } else {
506  llvm::SmallString<8> LinkerName;
507  if (Triple.isOSDarwin())
508  LinkerName.append("ld64.");
509  else
510  LinkerName.append("ld.");
511  LinkerName.append(UseLinker);
512 
513  std::string LinkerPath(GetProgramPath(LinkerName.c_str()));
514  if (llvm::sys::fs::can_execute(LinkerPath))
515  return LinkerPath;
516  }
517 
518  if (A)
519  getDriver().Diag(diag::err_drv_invalid_linker_name) << A->getAsString(Args);
520 
522 }
523 
525  return types::lookupTypeForExtension(Ext);
526 }
527 
529  return false;
530 }
531 
533  llvm::Triple HostTriple(LLVM_HOST_TRIPLE);
534  switch (HostTriple.getArch()) {
535  // The A32/T32/T16 instruction sets are not separate architectures in this
536  // context.
537  case llvm::Triple::arm:
538  case llvm::Triple::armeb:
539  case llvm::Triple::thumb:
540  case llvm::Triple::thumbeb:
541  return getArch() != llvm::Triple::arm && getArch() != llvm::Triple::thumb &&
542  getArch() != llvm::Triple::armeb && getArch() != llvm::Triple::thumbeb;
543  default:
544  return HostTriple.getArch() != getArch();
545  }
546 }
547 
549  return ObjCRuntime(isNonFragile ? ObjCRuntime::GNUstep : ObjCRuntime::GCC,
550  VersionTuple());
551 }
552 
553 llvm::ExceptionHandling
554 ToolChain::GetExceptionModel(const llvm::opt::ArgList &Args) const {
556 }
557 
558 bool ToolChain::isThreadModelSupported(const StringRef Model) const {
559  if (Model == "single") {
560  // FIXME: 'single' is only supported on ARM and WebAssembly so far.
561  return Triple.getArch() == llvm::Triple::arm ||
562  Triple.getArch() == llvm::Triple::armeb ||
563  Triple.getArch() == llvm::Triple::thumb ||
564  Triple.getArch() == llvm::Triple::thumbeb ||
565  Triple.getArch() == llvm::Triple::wasm32 ||
566  Triple.getArch() == llvm::Triple::wasm64;
567  } else if (Model == "posix")
568  return true;
569 
570  return false;
571 }
572 
573 std::string ToolChain::ComputeLLVMTriple(const ArgList &Args,
574  types::ID InputType) const {
575  switch (getTriple().getArch()) {
576  default:
577  return getTripleString();
578 
579  case llvm::Triple::x86_64: {
580  llvm::Triple Triple = getTriple();
581  if (!Triple.isOSBinFormatMachO())
582  return getTripleString();
583 
584  if (Arg *A = Args.getLastArg(options::OPT_march_EQ)) {
585  // x86_64h goes in the triple. Other -march options just use the
586  // vanilla triple we already have.
587  StringRef MArch = A->getValue();
588  if (MArch == "x86_64h")
589  Triple.setArchName(MArch);
590  }
591  return Triple.getTriple();
592  }
593  case llvm::Triple::aarch64: {
594  llvm::Triple Triple = getTriple();
595  if (!Triple.isOSBinFormatMachO())
596  return getTripleString();
597 
598  // FIXME: older versions of ld64 expect the "arm64" component in the actual
599  // triple string and query it to determine whether an LTO file can be
600  // handled. Remove this when we don't care any more.
601  Triple.setArchName("arm64");
602  return Triple.getTriple();
603  }
604  case llvm::Triple::arm:
605  case llvm::Triple::armeb:
606  case llvm::Triple::thumb:
607  case llvm::Triple::thumbeb: {
608  // FIXME: Factor into subclasses.
609  llvm::Triple Triple = getTriple();
610  bool IsBigEndian = getTriple().getArch() == llvm::Triple::armeb ||
611  getTriple().getArch() == llvm::Triple::thumbeb;
612 
613  // Handle pseudo-target flags '-mlittle-endian'/'-EL' and
614  // '-mbig-endian'/'-EB'.
615  if (Arg *A = Args.getLastArg(options::OPT_mlittle_endian,
616  options::OPT_mbig_endian)) {
617  IsBigEndian = !A->getOption().matches(options::OPT_mlittle_endian);
618  }
619 
620  // Thumb2 is the default for V7 on Darwin.
621  //
622  // FIXME: Thumb should just be another -target-feaure, not in the triple.
623  StringRef MCPU, MArch;
624  if (const Arg *A = Args.getLastArg(options::OPT_mcpu_EQ))
625  MCPU = A->getValue();
626  if (const Arg *A = Args.getLastArg(options::OPT_march_EQ))
627  MArch = A->getValue();
628  std::string CPU =
629  Triple.isOSBinFormatMachO()
630  ? tools::arm::getARMCPUForMArch(MArch, Triple).str()
631  : tools::arm::getARMTargetCPU(MCPU, MArch, Triple);
632  StringRef Suffix =
633  tools::arm::getLLVMArchSuffixForARM(CPU, MArch, Triple);
634  bool IsMProfile = ARM::parseArchProfile(Suffix) == ARM::ProfileKind::M;
635  bool ThumbDefault = IsMProfile || (ARM::parseArchVersion(Suffix) == 7 &&
636  getTriple().isOSBinFormatMachO());
637  // FIXME: this is invalid for WindowsCE
638  if (getTriple().isOSWindows())
639  ThumbDefault = true;
640  std::string ArchName;
641  if (IsBigEndian)
642  ArchName = "armeb";
643  else
644  ArchName = "arm";
645 
646  // Check if ARM ISA was explicitly selected (using -mno-thumb or -marm) for
647  // M-Class CPUs/architecture variants, which is not supported.
648  bool ARMModeRequested = !Args.hasFlag(options::OPT_mthumb,
649  options::OPT_mno_thumb, ThumbDefault);
650  if (IsMProfile && ARMModeRequested) {
651  if (!MCPU.empty())
652  getDriver().Diag(diag::err_cpu_unsupported_isa) << CPU << "ARM";
653  else
654  getDriver().Diag(diag::err_arch_unsupported_isa)
655  << tools::arm::getARMArch(MArch, getTriple()) << "ARM";
656  }
657 
658  // Check to see if an explicit choice to use thumb has been made via
659  // -mthumb. For assembler files we must check for -mthumb in the options
660  // passed to the assembler via -Wa or -Xassembler.
661  bool IsThumb = false;
662  if (InputType != types::TY_PP_Asm)
663  IsThumb = Args.hasFlag(options::OPT_mthumb, options::OPT_mno_thumb,
664  ThumbDefault);
665  else {
666  // Ideally we would check for these flags in
667  // CollectArgsForIntegratedAssembler but we can't change the ArchName at
668  // that point. There is no assembler equivalent of -mno-thumb, -marm, or
669  // -mno-arm.
670  for (const auto *A :
671  Args.filtered(options::OPT_Wa_COMMA, options::OPT_Xassembler)) {
672  for (StringRef Value : A->getValues()) {
673  if (Value == "-mthumb")
674  IsThumb = true;
675  }
676  }
677  }
678  // Assembly files should start in ARM mode, unless arch is M-profile, or
679  // -mthumb has been passed explicitly to the assembler. Windows is always
680  // thumb.
681  if (IsThumb || IsMProfile || getTriple().isOSWindows()) {
682  if (IsBigEndian)
683  ArchName = "thumbeb";
684  else
685  ArchName = "thumb";
686  }
687  Triple.setArchName(ArchName + Suffix.str());
688 
689  return Triple.getTriple();
690  }
691  }
692 }
693 
694 std::string ToolChain::ComputeEffectiveClangTriple(const ArgList &Args,
695  types::ID InputType) const {
696  return ComputeLLVMTriple(Args, InputType);
697 }
698 
699 void ToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
700  ArgStringList &CC1Args) const {
701  // Each toolchain should provide the appropriate include flags.
702 }
703 
705  const ArgList &DriverArgs, ArgStringList &CC1Args,
706  Action::OffloadKind DeviceOffloadKind) const {}
707 
708 void ToolChain::addClangWarningOptions(ArgStringList &CC1Args) const {}
709 
710 void ToolChain::addProfileRTLibs(const llvm::opt::ArgList &Args,
711  llvm::opt::ArgStringList &CmdArgs) const {
712  if (!needsProfileRT(Args)) return;
713 
714  CmdArgs.push_back(getCompilerRTArgString(Args, "profile"));
715 }
716 
718  const ArgList &Args) const {
719  const Arg* A = Args.getLastArg(options::OPT_rtlib_EQ);
720  StringRef LibName = A ? A->getValue() : CLANG_DEFAULT_RTLIB;
721 
722  // Only use "platform" in tests to override CLANG_DEFAULT_RTLIB!
723  if (LibName == "compiler-rt")
725  else if (LibName == "libgcc")
726  return ToolChain::RLT_Libgcc;
727  else if (LibName == "platform")
728  return GetDefaultRuntimeLibType();
729 
730  if (A)
731  getDriver().Diag(diag::err_drv_invalid_rtlib_name) << A->getAsString(Args);
732 
733  return GetDefaultRuntimeLibType();
734 }
735 
737  const ArgList &Args) const {
738  const Arg *A = Args.getLastArg(options::OPT_unwindlib_EQ);
739  StringRef LibName = A ? A->getValue() : CLANG_DEFAULT_UNWINDLIB;
740 
741  if (LibName == "none")
742  return ToolChain::UNW_None;
743  else if (LibName == "platform" || LibName == "") {
745  if (RtLibType == ToolChain::RLT_CompilerRT)
746  return ToolChain::UNW_None;
747  else if (RtLibType == ToolChain::RLT_Libgcc)
748  return ToolChain::UNW_Libgcc;
749  } else if (LibName == "libunwind") {
750  if (GetRuntimeLibType(Args) == RLT_Libgcc)
751  getDriver().Diag(diag::err_drv_incompatible_unwindlib);
753  } else if (LibName == "libgcc")
754  return ToolChain::UNW_Libgcc;
755 
756  if (A)
757  getDriver().Diag(diag::err_drv_invalid_unwindlib_name)
758  << A->getAsString(Args);
759 
760  return GetDefaultUnwindLibType();
761 }
762 
764  const Arg *A = Args.getLastArg(options::OPT_stdlib_EQ);
765  StringRef LibName = A ? A->getValue() : CLANG_DEFAULT_CXX_STDLIB;
766 
767  // Only use "platform" in tests to override CLANG_DEFAULT_CXX_STDLIB!
768  if (LibName == "libc++")
769  return ToolChain::CST_Libcxx;
770  else if (LibName == "libstdc++")
772  else if (LibName == "platform")
773  return GetDefaultCXXStdlibType();
774 
775  if (A)
776  getDriver().Diag(diag::err_drv_invalid_stdlib_name) << A->getAsString(Args);
777 
778  return GetDefaultCXXStdlibType();
779 }
780 
781 /// Utility function to add a system include directory to CC1 arguments.
782 /*static*/ void ToolChain::addSystemInclude(const ArgList &DriverArgs,
783  ArgStringList &CC1Args,
784  const Twine &Path) {
785  CC1Args.push_back("-internal-isystem");
786  CC1Args.push_back(DriverArgs.MakeArgString(Path));
787 }
788 
789 /// Utility function to add a system include directory with extern "C"
790 /// semantics to CC1 arguments.
791 ///
792 /// Note that this should be used rarely, and only for directories that
793 /// historically and for legacy reasons are treated as having implicit extern
794 /// "C" semantics. These semantics are *ignored* by and large today, but its
795 /// important to preserve the preprocessor changes resulting from the
796 /// classification.
797 /*static*/ void ToolChain::addExternCSystemInclude(const ArgList &DriverArgs,
798  ArgStringList &CC1Args,
799  const Twine &Path) {
800  CC1Args.push_back("-internal-externc-isystem");
801  CC1Args.push_back(DriverArgs.MakeArgString(Path));
802 }
803 
804 void ToolChain::addExternCSystemIncludeIfExists(const ArgList &DriverArgs,
805  ArgStringList &CC1Args,
806  const Twine &Path) {
807  if (llvm::sys::fs::exists(Path))
808  addExternCSystemInclude(DriverArgs, CC1Args, Path);
809 }
810 
811 /// Utility function to add a list of system include directories to CC1.
812 /*static*/ void ToolChain::addSystemIncludes(const ArgList &DriverArgs,
813  ArgStringList &CC1Args,
814  ArrayRef<StringRef> Paths) {
815  for (const auto Path : Paths) {
816  CC1Args.push_back("-internal-isystem");
817  CC1Args.push_back(DriverArgs.MakeArgString(Path));
818  }
819 }
820 
821 void ToolChain::AddClangCXXStdlibIncludeArgs(const ArgList &DriverArgs,
822  ArgStringList &CC1Args) const {
823  // Header search paths should be handled by each of the subclasses.
824  // Historically, they have not been, and instead have been handled inside of
825  // the CC1-layer frontend. As the logic is hoisted out, this generic function
826  // will slowly stop being called.
827  //
828  // While it is being called, replicate a bit of a hack to propagate the
829  // '-stdlib=' flag down to CC1 so that it can in turn customize the C++
830  // header search paths with it. Once all systems are overriding this
831  // function, the CC1 flag and this line can be removed.
832  DriverArgs.AddAllArgs(CC1Args, options::OPT_stdlib_EQ);
833 }
834 
835 bool ToolChain::ShouldLinkCXXStdlib(const llvm::opt::ArgList &Args) const {
836  return getDriver().CCCIsCXX() &&
837  !Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs,
838  options::OPT_nostdlibxx);
839 }
840 
841 void ToolChain::AddCXXStdlibLibArgs(const ArgList &Args,
842  ArgStringList &CmdArgs) const {
843  assert(!Args.hasArg(options::OPT_nostdlibxx) &&
844  "should not have called this");
846 
847  switch (Type) {
849  CmdArgs.push_back("-lc++");
850  break;
851 
853  CmdArgs.push_back("-lstdc++");
854  break;
855  }
856 }
857 
858 void ToolChain::AddFilePathLibArgs(const ArgList &Args,
859  ArgStringList &CmdArgs) const {
860  for (const auto &LibPath : getFilePaths())
861  if(LibPath.length() > 0)
862  CmdArgs.push_back(Args.MakeArgString(StringRef("-L") + LibPath));
863 }
864 
865 void ToolChain::AddCCKextLibArgs(const ArgList &Args,
866  ArgStringList &CmdArgs) const {
867  CmdArgs.push_back("-lcc_kext");
868 }
869 
871  ArgStringList &CmdArgs) const {
872  // Do not check for -fno-fast-math or -fno-unsafe-math when -Ofast passed
873  // (to keep the linker options consistent with gcc and clang itself).
874  if (!isOptimizationLevelFast(Args)) {
875  // Check if -ffast-math or -funsafe-math.
876  Arg *A =
877  Args.getLastArg(options::OPT_ffast_math, options::OPT_fno_fast_math,
878  options::OPT_funsafe_math_optimizations,
879  options::OPT_fno_unsafe_math_optimizations);
880 
881  if (!A || A->getOption().getID() == options::OPT_fno_fast_math ||
882  A->getOption().getID() == options::OPT_fno_unsafe_math_optimizations)
883  return false;
884  }
885  // If crtfastmath.o exists add it to the arguments.
886  std::string Path = GetFilePath("crtfastmath.o");
887  if (Path == "crtfastmath.o") // Not found.
888  return false;
889 
890  CmdArgs.push_back(Args.MakeArgString(Path));
891  return true;
892 }
893 
895  // Return sanitizers which don't require runtime support and are not
896  // platform dependent.
897 
898  SanitizerMask Res = (SanitizerKind::Undefined & ~SanitizerKind::Vptr &
899  ~SanitizerKind::Function) |
900  (SanitizerKind::CFI & ~SanitizerKind::CFIICall) |
901  SanitizerKind::CFICastStrict |
902  SanitizerKind::FloatDivideByZero |
903  SanitizerKind::UnsignedIntegerOverflow |
904  SanitizerKind::ImplicitConversion |
905  SanitizerKind::Nullability | SanitizerKind::LocalBounds;
906  if (getTriple().getArch() == llvm::Triple::x86 ||
907  getTriple().getArch() == llvm::Triple::x86_64 ||
908  getTriple().getArch() == llvm::Triple::arm ||
909  getTriple().getArch() == llvm::Triple::aarch64 ||
910  getTriple().getArch() == llvm::Triple::wasm32 ||
911  getTriple().getArch() == llvm::Triple::wasm64)
912  Res |= SanitizerKind::CFIICall;
913  if (getTriple().getArch() == llvm::Triple::x86_64 ||
914  getTriple().getArch() == llvm::Triple::aarch64)
915  Res |= SanitizerKind::ShadowCallStack;
916  return Res;
917 }
918 
919 void ToolChain::AddCudaIncludeArgs(const ArgList &DriverArgs,
920  ArgStringList &CC1Args) const {}
921 
922 void ToolChain::AddIAMCUIncludeArgs(const ArgList &DriverArgs,
923  ArgStringList &CC1Args) const {}
924 
925 static VersionTuple separateMSVCFullVersion(unsigned Version) {
926  if (Version < 100)
927  return VersionTuple(Version);
928 
929  if (Version < 10000)
930  return VersionTuple(Version / 100, Version % 100);
931 
932  unsigned Build = 0, Factor = 1;
933  for (; Version > 10000; Version = Version / 10, Factor = Factor * 10)
934  Build = Build + (Version % 10) * Factor;
935  return VersionTuple(Version / 100, Version % 100, Build);
936 }
937 
938 VersionTuple
940  const llvm::opt::ArgList &Args) const {
941  const Arg *MSCVersion = Args.getLastArg(options::OPT_fmsc_version);
942  const Arg *MSCompatibilityVersion =
943  Args.getLastArg(options::OPT_fms_compatibility_version);
944 
945  if (MSCVersion && MSCompatibilityVersion) {
946  if (D)
947  D->Diag(diag::err_drv_argument_not_allowed_with)
948  << MSCVersion->getAsString(Args)
949  << MSCompatibilityVersion->getAsString(Args);
950  return VersionTuple();
951  }
952 
953  if (MSCompatibilityVersion) {
954  VersionTuple MSVT;
955  if (MSVT.tryParse(MSCompatibilityVersion->getValue())) {
956  if (D)
957  D->Diag(diag::err_drv_invalid_value)
958  << MSCompatibilityVersion->getAsString(Args)
959  << MSCompatibilityVersion->getValue();
960  } else {
961  return MSVT;
962  }
963  }
964 
965  if (MSCVersion) {
966  unsigned Version = 0;
967  if (StringRef(MSCVersion->getValue()).getAsInteger(10, Version)) {
968  if (D)
969  D->Diag(diag::err_drv_invalid_value)
970  << MSCVersion->getAsString(Args) << MSCVersion->getValue();
971  } else {
972  return separateMSVCFullVersion(Version);
973  }
974  }
975 
976  return VersionTuple();
977 }
978 
979 llvm::opt::DerivedArgList *ToolChain::TranslateOpenMPTargetArgs(
980  const llvm::opt::DerivedArgList &Args, bool SameTripleAsHost,
981  SmallVectorImpl<llvm::opt::Arg *> &AllocatedArgs) const {
982  DerivedArgList *DAL = new DerivedArgList(Args.getBaseArgs());
983  const OptTable &Opts = getDriver().getOpts();
984  bool Modified = false;
985 
986  // Handle -Xopenmp-target flags
987  for (auto *A : Args) {
988  // Exclude flags which may only apply to the host toolchain.
989  // Do not exclude flags when the host triple (AuxTriple)
990  // matches the current toolchain triple. If it is not present
991  // at all, target and host share a toolchain.
992  if (A->getOption().matches(options::OPT_m_Group)) {
993  if (SameTripleAsHost)
994  DAL->append(A);
995  else
996  Modified = true;
997  continue;
998  }
999 
1000  unsigned Index;
1001  unsigned Prev;
1002  bool XOpenMPTargetNoTriple =
1003  A->getOption().matches(options::OPT_Xopenmp_target);
1004 
1005  if (A->getOption().matches(options::OPT_Xopenmp_target_EQ)) {
1006  // Passing device args: -Xopenmp-target=<triple> -opt=val.
1007  if (A->getValue(0) == getTripleString())
1008  Index = Args.getBaseArgs().MakeIndex(A->getValue(1));
1009  else
1010  continue;
1011  } else if (XOpenMPTargetNoTriple) {
1012  // Passing device args: -Xopenmp-target -opt=val.
1013  Index = Args.getBaseArgs().MakeIndex(A->getValue(0));
1014  } else {
1015  DAL->append(A);
1016  continue;
1017  }
1018 
1019  // Parse the argument to -Xopenmp-target.
1020  Prev = Index;
1021  std::unique_ptr<Arg> XOpenMPTargetArg(Opts.ParseOneArg(Args, Index));
1022  if (!XOpenMPTargetArg || Index > Prev + 1) {
1023  getDriver().Diag(diag::err_drv_invalid_Xopenmp_target_with_args)
1024  << A->getAsString(Args);
1025  continue;
1026  }
1027  if (XOpenMPTargetNoTriple && XOpenMPTargetArg &&
1028  Args.getAllArgValues(options::OPT_fopenmp_targets_EQ).size() != 1) {
1029  getDriver().Diag(diag::err_drv_Xopenmp_target_missing_triple);
1030  continue;
1031  }
1032  XOpenMPTargetArg->setBaseArg(A);
1033  A = XOpenMPTargetArg.release();
1034  AllocatedArgs.push_back(A);
1035  DAL->append(A);
1036  Modified = true;
1037  }
1038 
1039  if (Modified)
1040  return DAL;
1041 
1042  delete DAL;
1043  return nullptr;
1044 }
virtual void addClangWarningOptions(llvm::opt::ArgStringList &CC1Args) const
Add warning options that need to be passed to cc1 for this target.
Definition: ToolChain.cpp:708
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:797
void setTripleEnvironment(llvm::Triple::EnvironmentType Env)
Definition: ToolChain.cpp:89
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:573
static void addExternCSystemIncludeIfExists(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args, const Twine &Path)
Definition: ToolChain.cpp:804
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:865
virtual const char * getDefaultLinker() const
GetDefaultLinker - Get the default linker to use.
Definition: ToolChain.h:367
Specialize PointerLikeTypeTraits to allow LazyGenerationalUpdatePtr to be placed into a PointerUnion...
Definition: Dominators.h:30
virtual ObjCRuntime getDefaultObjCRuntime(bool isNonFragile) const
getDefaultObjCRuntime - Return the default Objective-C runtime for this platform. ...
Definition: ToolChain.cpp:548
StringRef P
Defines types useful for describing an Objective-C runtime.
The base class of the type hierarchy.
Definition: Type.h:1433
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:821
StringRef getOS() const
Definition: ToolChain.h:212
virtual bool isThreadModelSupported(const StringRef Model) const
isThreadModelSupported() - Does this target support a thread model?
Definition: ToolChain.cpp:558
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:925
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:710
std::string GetLinkerPath() const
Returns the linker path, respecting the -fuse-ld= argument to determine the linker suffix or name...
Definition: ToolChain.cpp:492
FloatABI getARMFloatABI(const ToolChain &TC, const llvm::opt::ArgList &Args)
Clang integrated assembler tool.
Definition: Clang.h:114
long i
Definition: xmmintrin.h:1456
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:699
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:452
std::string getTripleString() const
Definition: ToolChain.h:218
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:484
bool isOptimizationLevelFast(const llvm::opt::ArgList &Args)
path_list & getFilePaths()
Definition: ToolChain.h:231
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:870
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:331
llvm::vfs::FileSystem & getVFS() const
Definition: Driver.h:299
virtual bool useRelaxRelocations() const
Check whether to enable x86 relax relocations by default.
Definition: ToolChain.cpp:107
virtual bool useIntegratedAs() const
Check if the toolchain should use the integrated assembler.
Definition: ToolChain.cpp:101
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:939
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:812
virtual llvm::ExceptionHandling GetExceptionModel(const llvm::opt::ArgList &Args) const
GetExceptionModel - Return the tool chain exception model.
Definition: ToolChain.cpp:554
static llvm::opt::Arg * GetRTTIArgument(const ArgList &Args)
Definition: ToolChain.cpp:52
virtual UnwindLibType GetDefaultUnwindLibType() const
Definition: ToolChain.h:378
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:979
virtual types::ID LookupTypeForExtension(StringRef Ext) const
LookupTypeForExtension - Return the default language type to use for the given extension.
Definition: ToolChain.cpp:524
virtual Optional< std::string > getCXXStdlibPath() const
Definition: ToolChain.cpp:427
virtual UnwindLibType GetUnwindLibType(const llvm::opt::ArgList &Args) const
Definition: ToolChain.cpp:736
static const DriverSuffix * FindDriverSuffix(StringRef ProgName, size_t &Pos)
Definition: ToolChain.cpp:136
virtual bool isNoExecStackDefault() const
Test whether this toolchaind defaults to non-executable stacks.
Definition: ToolChain.cpp:111
&#39;gnustep&#39; is the modern non-fragile GNUstep runtime.
Definition: ObjCRuntime.h:55
virtual CXXStdlibType GetDefaultCXXStdlibType() const
Definition: ToolChain.h:374
path_list & getLibraryPaths()
Definition: ToolChain.h:228
llvm::Triple::ArchType getArch() const
Definition: ToolChain.h:209
virtual void AddCudaIncludeArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Add arguments to use system-specific CUDA includes.
Definition: ToolChain.cpp:919
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
virtual std::string getCompilerRT(const llvm::opt::ArgList &Args, StringRef Component, FileType Type=ToolChain::FT_Static) const
Definition: ToolChain.cpp:364
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:858
Offload bundler tool.
Definition: Clang.h:135
const Driver & getDriver() const
Definition: ToolChain.h:193
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:782
virtual bool HasNativeLLVMSupport() const
HasNativeLTOLinker - Check whether the linker and related tools have native LLVM support.
Definition: ToolChain.cpp:528
constexpr XRayInstrMask None
Definition: XRayInstr.h:37
virtual RuntimeLibType GetRuntimeLibType(const llvm::opt::ArgList &Args) const
Definition: ToolChain.cpp:717
llvm::vfs::FileSystem & getVFS() const
Definition: ToolChain.cpp:97
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:835
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:694
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
virtual Optional< std::string > getRuntimePath() const
Definition: ToolChain.cpp:409
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:195
virtual SanitizerMask getSupportedSanitizers() const
Return sanitizers which are available in this toolchain.
Definition: ToolChain.cpp:894
ID lookupTypeForExtension(llvm::StringRef Ext)
lookupTypeForExtension - Lookup the type to use for the file extension Ext.
Definition: Types.cpp:196
std::string getArchSpecificLibPath() const
Definition: ToolChain.cpp:445
virtual Tool * getTool(Action::ActionClass AC) const
Definition: ToolChain.cpp:288
virtual std::string getCompilerRTPath() const
Definition: ToolChain.cpp:354
const char * getCompilerRTArgString(const llvm::opt::ArgList &Args, StringRef Component, FileType Type=ToolChain::FT_Static) const
Definition: ToolChain.cpp:402
std::string GetProgramPath(const char *Name) const
Definition: ToolChain.cpp:488
static bool needsGCovInstrumentation(const llvm::opt::ArgList &Args)
Returns true if gcov instrumentation (-fprofile-arcs or –coverage) is on.
Definition: ToolChain.cpp:470
const llvm::opt::OptTable & getOpts() const
Definition: Driver.h:295
virtual bool isCrossCompiling() const
Returns true if the toolchain is targeting a non-native architecture.
Definition: ToolChain.cpp:532
virtual CXXStdlibType GetCXXStdlibType(const llvm::opt::ArgList &Args) const
Definition: ToolChain.cpp:763
virtual Tool * SelectTool(const JobAction &JA) const
Choose a tool to use to handle the action JA.
Definition: ToolChain.cpp:476
virtual void AddIAMCUIncludeArgs(const llvm::opt::ArgList &DriverArgs, llvm::opt::ArgStringList &CC1Args) const
Add arguments to use MCU GCC toolchain includes.
Definition: ToolChain.cpp:922
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:704
virtual RuntimeLibType GetDefaultRuntimeLibType() const
GetDefaultRuntimeLibType - Get the default runtime library variant to use.
Definition: ToolChain.h:370
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:841
ToolChain - Access to tools for a single platform.
Definition: ToolChain.h:88