clang  10.0.0git
ToolChain.h
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1 //===- ToolChain.h - Collections of tools for one platform ------*- C++ -*-===//
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 
9 #ifndef LLVM_CLANG_DRIVER_TOOLCHAIN_H
10 #define LLVM_CLANG_DRIVER_TOOLCHAIN_H
11 
13 #include "clang/Basic/LLVM.h"
15 #include "clang/Basic/Sanitizers.h"
16 #include "clang/Driver/Action.h"
17 #include "clang/Driver/Multilib.h"
18 #include "clang/Driver/Types.h"
19 #include "llvm/ADT/ArrayRef.h"
20 #include "llvm/ADT/SmallVector.h"
21 #include "llvm/ADT/StringRef.h"
22 #include "llvm/ADT/Triple.h"
23 #include "llvm/MC/MCTargetOptions.h"
24 #include "llvm/Option/Option.h"
25 #include "llvm/Support/VersionTuple.h"
26 #include "llvm/Target/TargetOptions.h"
27 #include <cassert>
28 #include <memory>
29 #include <string>
30 #include <utility>
31 
32 namespace llvm {
33 namespace opt {
34 
35 class Arg;
36 class ArgList;
37 class DerivedArgList;
38 
39 } // namespace opt
40 namespace vfs {
41 
42 class FileSystem;
43 
44 } // namespace vfs
45 } // namespace llvm
46 
47 namespace clang {
48 
49 class ObjCRuntime;
50 
51 namespace driver {
52 
53 class Driver;
54 class InputInfo;
55 class SanitizerArgs;
56 class Tool;
57 class XRayArgs;
58 
59 /// Helper structure used to pass information extracted from clang executable
60 /// name such as `i686-linux-android-g++`.
62  /// Target part of the executable name, as `i686-linux-android`.
63  std::string TargetPrefix;
64 
65  /// Driver mode part of the executable name, as `g++`.
66  std::string ModeSuffix;
67 
68  /// Corresponding driver mode argument, as '--driver-mode=g++'
69  const char *DriverMode = nullptr;
70 
71  /// True if TargetPrefix is recognized as a registered target name.
72  bool TargetIsValid = false;
73 
74  ParsedClangName() = default;
75  ParsedClangName(std::string Suffix, const char *Mode)
76  : ModeSuffix(Suffix), DriverMode(Mode) {}
77  ParsedClangName(std::string Target, std::string Suffix, const char *Mode,
78  bool IsRegistered)
79  : TargetPrefix(Target), ModeSuffix(Suffix), DriverMode(Mode),
80  TargetIsValid(IsRegistered) {}
81 
82  bool isEmpty() const {
83  return TargetPrefix.empty() && ModeSuffix.empty() && DriverMode == nullptr;
84  }
85 };
86 
87 /// ToolChain - Access to tools for a single platform.
88 class ToolChain {
89 public:
91 
94  CST_Libstdcxx
95  };
96 
99  RLT_Libgcc
100  };
101 
105  UNW_Libgcc
106  };
107 
108  enum RTTIMode {
111  };
112 
113  enum FileType { FT_Object, FT_Static, FT_Shared };
114 
115 private:
117 
118  const Driver &D;
119  llvm::Triple Triple;
120  const llvm::opt::ArgList &Args;
121 
122  // We need to initialize CachedRTTIArg before CachedRTTIMode
123  const llvm::opt::Arg *const CachedRTTIArg;
124 
125  const RTTIMode CachedRTTIMode;
126 
127  /// The list of toolchain specific path prefixes to search for libraries.
128  path_list LibraryPaths;
129 
130  /// The list of toolchain specific path prefixes to search for files.
131  path_list FilePaths;
132 
133  /// The list of toolchain specific path prefixes to search for programs.
134  path_list ProgramPaths;
135 
136  mutable std::unique_ptr<Tool> Clang;
137  mutable std::unique_ptr<Tool> Flang;
138  mutable std::unique_ptr<Tool> Assemble;
139  mutable std::unique_ptr<Tool> Link;
140  mutable std::unique_ptr<Tool> IfsMerge;
141  mutable std::unique_ptr<Tool> OffloadBundler;
142  mutable std::unique_ptr<Tool> OffloadWrapper;
143 
144  Tool *getClang() const;
145  Tool *getFlang() const;
146  Tool *getAssemble() const;
147  Tool *getLink() const;
148  Tool *getIfsMerge() const;
149  Tool *getClangAs() const;
150  Tool *getOffloadBundler() const;
151  Tool *getOffloadWrapper() const;
152 
153  mutable std::unique_ptr<SanitizerArgs> SanitizerArguments;
154  mutable std::unique_ptr<XRayArgs> XRayArguments;
155 
156  /// The effective clang triple for the current Job.
157  mutable llvm::Triple EffectiveTriple;
158 
159  /// Set the toolchain's effective clang triple.
160  void setEffectiveTriple(llvm::Triple ET) const {
161  EffectiveTriple = std::move(ET);
162  }
163 
164 protected:
167 
168  ToolChain(const Driver &D, const llvm::Triple &T,
169  const llvm::opt::ArgList &Args);
170 
171  void setTripleEnvironment(llvm::Triple::EnvironmentType Env);
172 
173  virtual Tool *buildAssembler() const;
174  virtual Tool *buildLinker() const;
175  virtual Tool *getTool(Action::ActionClass AC) const;
176 
177  /// \name Utilities for implementing subclasses.
178  ///@{
179  static void addSystemInclude(const llvm::opt::ArgList &DriverArgs,
180  llvm::opt::ArgStringList &CC1Args,
181  const Twine &Path);
182  static void addExternCSystemInclude(const llvm::opt::ArgList &DriverArgs,
183  llvm::opt::ArgStringList &CC1Args,
184  const Twine &Path);
185  static void
186  addExternCSystemIncludeIfExists(const llvm::opt::ArgList &DriverArgs,
187  llvm::opt::ArgStringList &CC1Args,
188  const Twine &Path);
189  static void addSystemIncludes(const llvm::opt::ArgList &DriverArgs,
190  llvm::opt::ArgStringList &CC1Args,
191  ArrayRef<StringRef> Paths);
192  ///@}
193 
194 public:
195  virtual ~ToolChain();
196 
197  // Accessors
198 
199  const Driver &getDriver() const { return D; }
200  llvm::vfs::FileSystem &getVFS() const;
201  const llvm::Triple &getTriple() const { return Triple; }
202 
203  /// Get the toolchain's aux triple, if it has one.
204  ///
205  /// Exactly what the aux triple represents depends on the toolchain, but for
206  /// example when compiling CUDA code for the GPU, the triple might be NVPTX,
207  /// while the aux triple is the host (CPU) toolchain, e.g. x86-linux-gnu.
208  virtual const llvm::Triple *getAuxTriple() const { return nullptr; }
209 
210  /// Some toolchains need to modify the file name, for example to replace the
211  /// extension for object files with .cubin for OpenMP offloading to Nvidia
212  /// GPUs.
213  virtual std::string getInputFilename(const InputInfo &Input) const;
214 
215  llvm::Triple::ArchType getArch() const { return Triple.getArch(); }
216  StringRef getArchName() const { return Triple.getArchName(); }
217  StringRef getPlatform() const { return Triple.getVendorName(); }
218  StringRef getOS() const { return Triple.getOSName(); }
219 
220  /// Provide the default architecture name (as expected by -arch) for
221  /// this toolchain.
222  StringRef getDefaultUniversalArchName() const;
223 
224  std::string getTripleString() const {
225  return Triple.getTriple();
226  }
227 
228  /// Get the toolchain's effective clang triple.
229  const llvm::Triple &getEffectiveTriple() const {
230  assert(!EffectiveTriple.getTriple().empty() && "No effective triple");
231  return EffectiveTriple;
232  }
233 
234  path_list &getLibraryPaths() { return LibraryPaths; }
235  const path_list &getLibraryPaths() const { return LibraryPaths; }
236 
237  path_list &getFilePaths() { return FilePaths; }
238  const path_list &getFilePaths() const { return FilePaths; }
239 
240  path_list &getProgramPaths() { return ProgramPaths; }
241  const path_list &getProgramPaths() const { return ProgramPaths; }
242 
243  const MultilibSet &getMultilibs() const { return Multilibs; }
244 
245  const Multilib &getMultilib() const { return SelectedMultilib; }
246 
247  const SanitizerArgs& getSanitizerArgs() const;
248 
249  const XRayArgs& getXRayArgs() const;
250 
251  // Returns the Arg * that explicitly turned on/off rtti, or nullptr.
252  const llvm::opt::Arg *getRTTIArg() const { return CachedRTTIArg; }
253 
254  // Returns the RTTIMode for the toolchain with the current arguments.
255  RTTIMode getRTTIMode() const { return CachedRTTIMode; }
256 
257  /// Return any implicit target and/or mode flag for an invocation of
258  /// the compiler driver as `ProgName`.
259  ///
260  /// For example, when called with i686-linux-android-g++, the first element
261  /// of the return value will be set to `"i686-linux-android"` and the second
262  /// will be set to "--driver-mode=g++"`.
263  /// It is OK if the target name is not registered. In this case the return
264  /// value contains false in the field TargetIsValid.
265  ///
266  /// \pre `llvm::InitializeAllTargets()` has been called.
267  /// \param ProgName The name the Clang driver was invoked with (from,
268  /// e.g., argv[0]).
269  /// \return A structure of type ParsedClangName that contains the executable
270  /// name parts.
271  static ParsedClangName getTargetAndModeFromProgramName(StringRef ProgName);
272 
273  // Tool access.
274 
275  /// TranslateArgs - Create a new derived argument list for any argument
276  /// translations this ToolChain may wish to perform, or 0 if no tool chain
277  /// specific translations are needed. If \p DeviceOffloadKind is specified
278  /// the translation specific for that offload kind is performed.
279  ///
280  /// \param BoundArch - The bound architecture name, or 0.
281  /// \param DeviceOffloadKind - The device offload kind used for the
282  /// translation.
283  virtual llvm::opt::DerivedArgList *
284  TranslateArgs(const llvm::opt::DerivedArgList &Args, StringRef BoundArch,
285  Action::OffloadKind DeviceOffloadKind) const {
286  return nullptr;
287  }
288 
289  /// TranslateOpenMPTargetArgs - Create a new derived argument list for
290  /// that contains the OpenMP target specific flags passed via
291  /// -Xopenmp-target -opt=val OR -Xopenmp-target=<triple> -opt=val
292  virtual llvm::opt::DerivedArgList *TranslateOpenMPTargetArgs(
293  const llvm::opt::DerivedArgList &Args, bool SameTripleAsHost,
294  SmallVectorImpl<llvm::opt::Arg *> &AllocatedArgs) const;
295 
296  /// Choose a tool to use to handle the action \p JA.
297  ///
298  /// This can be overridden when a particular ToolChain needs to use
299  /// a compiler other than Clang.
300  virtual Tool *SelectTool(const JobAction &JA) const;
301 
302  // Helper methods
303 
304  std::string GetFilePath(const char *Name) const;
305  std::string GetProgramPath(const char *Name) const;
306 
307  /// Returns the linker path, respecting the -fuse-ld= argument to determine
308  /// the linker suffix or name.
309  std::string GetLinkerPath() const;
310 
311  /// Dispatch to the specific toolchain for verbose printing.
312  ///
313  /// This is used when handling the verbose option to print detailed,
314  /// toolchain-specific information useful for understanding the behavior of
315  /// the driver on a specific platform.
316  virtual void printVerboseInfo(raw_ostream &OS) const {}
317 
318  // Platform defaults information
319 
320  /// Returns true if the toolchain is targeting a non-native
321  /// architecture.
322  virtual bool isCrossCompiling() const;
323 
324  /// HasNativeLTOLinker - Check whether the linker and related tools have
325  /// native LLVM support.
326  virtual bool HasNativeLLVMSupport() const;
327 
328  /// LookupTypeForExtension - Return the default language type to use for the
329  /// given extension.
330  virtual types::ID LookupTypeForExtension(StringRef Ext) const;
331 
332  /// IsBlocksDefault - Does this tool chain enable -fblocks by default.
333  virtual bool IsBlocksDefault() const { return false; }
334 
335  /// IsIntegratedAssemblerDefault - Does this tool chain enable -integrated-as
336  /// by default.
337  virtual bool IsIntegratedAssemblerDefault() const { return false; }
338 
339  /// Check if the toolchain should use the integrated assembler.
340  virtual bool useIntegratedAs() const;
341 
342  /// IsMathErrnoDefault - Does this tool chain use -fmath-errno by default.
343  virtual bool IsMathErrnoDefault() const { return true; }
344 
345  /// IsEncodeExtendedBlockSignatureDefault - Does this tool chain enable
346  /// -fencode-extended-block-signature by default.
347  virtual bool IsEncodeExtendedBlockSignatureDefault() const { return false; }
348 
349  /// IsObjCNonFragileABIDefault - Does this tool chain set
350  /// -fobjc-nonfragile-abi by default.
351  virtual bool IsObjCNonFragileABIDefault() const { return false; }
352 
353  /// UseObjCMixedDispatchDefault - When using non-legacy dispatch, should the
354  /// mixed dispatch method be used?
355  virtual bool UseObjCMixedDispatch() const { return false; }
356 
357  /// Check whether to enable x86 relax relocations by default.
358  virtual bool useRelaxRelocations() const;
359 
360  /// GetDefaultStackProtectorLevel - Get the default stack protector level for
361  /// this tool chain (0=off, 1=on, 2=strong, 3=all).
362  virtual unsigned GetDefaultStackProtectorLevel(bool KernelOrKext) const {
363  return 0;
364  }
365 
366  /// Get the default trivial automatic variable initialization.
370  }
371 
372  /// GetDefaultLinker - Get the default linker to use.
373  virtual const char *getDefaultLinker() const { return "ld"; }
374 
375  /// GetDefaultRuntimeLibType - Get the default runtime library variant to use.
377  return ToolChain::RLT_Libgcc;
378  }
379 
381  return ToolChain::CST_Libstdcxx;
382  }
383 
385  return ToolChain::UNW_None;
386  }
387 
388  virtual std::string getCompilerRTPath() const;
389 
390  virtual std::string getCompilerRT(const llvm::opt::ArgList &Args,
391  StringRef Component,
392  FileType Type = ToolChain::FT_Static) const;
393 
394  const char *
395  getCompilerRTArgString(const llvm::opt::ArgList &Args, StringRef Component,
396  FileType Type = ToolChain::FT_Static) const;
397 
398  // Returns target specific runtime path if it exists.
399  virtual Optional<std::string> getRuntimePath() const;
400 
401  // Returns target specific C++ library path if it exists.
402  virtual Optional<std::string> getCXXStdlibPath() const;
403 
404  // Returns <ResourceDir>/lib/<OSName>/<arch>. This is used by runtimes (such
405  // as OpenMP) to find arch-specific libraries.
406  std::string getArchSpecificLibPath() const;
407 
408  // Returns <OSname> part of above.
409  StringRef getOSLibName() const;
410 
411  /// needsProfileRT - returns true if instrumentation profile is on.
412  static bool needsProfileRT(const llvm::opt::ArgList &Args);
413 
414  /// Returns true if gcov instrumentation (-fprofile-arcs or --coverage) is on.
415  static bool needsGCovInstrumentation(const llvm::opt::ArgList &Args);
416 
417  /// IsUnwindTablesDefault - Does this tool chain use -funwind-tables
418  /// by default.
419  virtual bool IsUnwindTablesDefault(const llvm::opt::ArgList &Args) const;
420 
421  /// Test whether this toolchain defaults to PIC.
422  virtual bool isPICDefault() const = 0;
423 
424  /// Test whether this toolchain defaults to PIE.
425  virtual bool isPIEDefault() const = 0;
426 
427  /// Test whether this toolchaind defaults to non-executable stacks.
428  virtual bool isNoExecStackDefault() const;
429 
430  /// Tests whether this toolchain forces its default for PIC, PIE or
431  /// non-PIC. If this returns true, any PIC related flags should be ignored
432  /// and instead the results of \c isPICDefault() and \c isPIEDefault() are
433  /// used exclusively.
434  virtual bool isPICDefaultForced() const = 0;
435 
436  /// SupportsProfiling - Does this tool chain support -pg.
437  virtual bool SupportsProfiling() const { return true; }
438 
439  /// Complain if this tool chain doesn't support Objective-C ARC.
440  virtual void CheckObjCARC() const {}
441 
442  /// Get the default debug info format. Typically, this is DWARF.
445  }
446 
447  /// UseDwarfDebugFlags - Embed the compile options to clang into the Dwarf
448  /// compile unit information.
449  virtual bool UseDwarfDebugFlags() const { return false; }
450 
451  // Return the DWARF version to emit, in the absence of arguments
452  // to the contrary.
453  virtual unsigned GetDefaultDwarfVersion() const { return 4; }
454 
455  // True if the driver should assume "-fstandalone-debug"
456  // in the absence of an option specifying otherwise,
457  // provided that debugging was requested in the first place.
458  // i.e. a value of 'true' does not imply that debugging is wanted.
459  virtual bool GetDefaultStandaloneDebug() const { return false; }
460 
461  // Return the default debugger "tuning."
462  virtual llvm::DebuggerKind getDefaultDebuggerTuning() const {
463  return llvm::DebuggerKind::GDB;
464  }
465 
466  /// Does this toolchain supports given debug info option or not.
467  virtual bool supportsDebugInfoOption(const llvm::opt::Arg *) const {
468  return true;
469  }
470 
471  /// Adjust debug information kind considering all passed options.
473  const llvm::opt::ArgList &Args) const {}
474 
475  /// GetExceptionModel - Return the tool chain exception model.
476  virtual llvm::ExceptionHandling
477  GetExceptionModel(const llvm::opt::ArgList &Args) const;
478 
479  /// SupportsEmbeddedBitcode - Does this tool chain support embedded bitcode.
480  virtual bool SupportsEmbeddedBitcode() const { return false; }
481 
482  /// getThreadModel() - Which thread model does this target use?
483  virtual std::string getThreadModel() const { return "posix"; }
484 
485  /// isThreadModelSupported() - Does this target support a thread model?
486  virtual bool isThreadModelSupported(const StringRef Model) const;
487 
488  /// ComputeLLVMTriple - Return the LLVM target triple to use, after taking
489  /// command line arguments into account.
490  virtual std::string
491  ComputeLLVMTriple(const llvm::opt::ArgList &Args,
492  types::ID InputType = types::TY_INVALID) const;
493 
494  /// ComputeEffectiveClangTriple - Return the Clang triple to use for this
495  /// target, which may take into account the command line arguments. For
496  /// example, on Darwin the -mmacosx-version-min= command line argument (which
497  /// sets the deployment target) determines the version in the triple passed to
498  /// Clang.
499  virtual std::string ComputeEffectiveClangTriple(
500  const llvm::opt::ArgList &Args,
501  types::ID InputType = types::TY_INVALID) const;
502 
503  /// getDefaultObjCRuntime - Return the default Objective-C runtime
504  /// for this platform.
505  ///
506  /// FIXME: this really belongs on some sort of DeploymentTarget abstraction
507  virtual ObjCRuntime getDefaultObjCRuntime(bool isNonFragile) const;
508 
509  /// hasBlocksRuntime - Given that the user is compiling with
510  /// -fblocks, does this tool chain guarantee the existence of a
511  /// blocks runtime?
512  ///
513  /// FIXME: this really belongs on some sort of DeploymentTarget abstraction
514  virtual bool hasBlocksRuntime() const { return true; }
515 
516  /// Add the clang cc1 arguments for system include paths.
517  ///
518  /// This routine is responsible for adding the necessary cc1 arguments to
519  /// include headers from standard system header directories.
520  virtual void
521  AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs,
522  llvm::opt::ArgStringList &CC1Args) const;
523 
524  /// Add options that need to be passed to cc1 for this target.
525  virtual void addClangTargetOptions(const llvm::opt::ArgList &DriverArgs,
526  llvm::opt::ArgStringList &CC1Args,
527  Action::OffloadKind DeviceOffloadKind) const;
528 
529  /// Add warning options that need to be passed to cc1 for this target.
530  virtual void addClangWarningOptions(llvm::opt::ArgStringList &CC1Args) const;
531 
532  // GetRuntimeLibType - Determine the runtime library type to use with the
533  // given compilation arguments.
534  virtual RuntimeLibType
535  GetRuntimeLibType(const llvm::opt::ArgList &Args) const;
536 
537  // GetCXXStdlibType - Determine the C++ standard library type to use with the
538  // given compilation arguments.
539  virtual CXXStdlibType GetCXXStdlibType(const llvm::opt::ArgList &Args) const;
540 
541  // GetUnwindLibType - Determine the unwind library type to use with the
542  // given compilation arguments.
543  virtual UnwindLibType GetUnwindLibType(const llvm::opt::ArgList &Args) const;
544 
545  /// AddClangCXXStdlibIncludeArgs - Add the clang -cc1 level arguments to set
546  /// the include paths to use for the given C++ standard library type.
547  virtual void
548  AddClangCXXStdlibIncludeArgs(const llvm::opt::ArgList &DriverArgs,
549  llvm::opt::ArgStringList &CC1Args) const;
550 
551  /// AddClangCXXStdlibIsystemArgs - Add the clang -cc1 level arguments to set
552  /// the specified include paths for the C++ standard library.
553  void AddClangCXXStdlibIsystemArgs(const llvm::opt::ArgList &DriverArgs,
554  llvm::opt::ArgStringList &CC1Args) const;
555 
556  /// Returns if the C++ standard library should be linked in.
557  /// Note that e.g. -lm should still be linked even if this returns false.
558  bool ShouldLinkCXXStdlib(const llvm::opt::ArgList &Args) const;
559 
560  /// AddCXXStdlibLibArgs - Add the system specific linker arguments to use
561  /// for the given C++ standard library type.
562  virtual void AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args,
563  llvm::opt::ArgStringList &CmdArgs) const;
564 
565  /// AddFilePathLibArgs - Add each thing in getFilePaths() as a "-L" option.
566  void AddFilePathLibArgs(const llvm::opt::ArgList &Args,
567  llvm::opt::ArgStringList &CmdArgs) const;
568 
569  /// AddCCKextLibArgs - Add the system specific linker arguments to use
570  /// for kernel extensions (Darwin-specific).
571  virtual void AddCCKextLibArgs(const llvm::opt::ArgList &Args,
572  llvm::opt::ArgStringList &CmdArgs) const;
573 
574  /// AddFastMathRuntimeIfAvailable - If a runtime library exists that sets
575  /// global flags for unsafe floating point math, add it and return true.
576  ///
577  /// This checks for presence of the -Ofast, -ffast-math or -funsafe-math flags.
578  virtual bool AddFastMathRuntimeIfAvailable(
579  const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs) const;
580 
581  /// addProfileRTLibs - When -fprofile-instr-profile is specified, try to pass
582  /// a suitable profile runtime library to the linker.
583  virtual void addProfileRTLibs(const llvm::opt::ArgList &Args,
584  llvm::opt::ArgStringList &CmdArgs) const;
585 
586  /// Add arguments to use system-specific CUDA includes.
587  virtual void AddCudaIncludeArgs(const llvm::opt::ArgList &DriverArgs,
588  llvm::opt::ArgStringList &CC1Args) const;
589 
590  /// Add arguments to use MCU GCC toolchain includes.
591  virtual void AddIAMCUIncludeArgs(const llvm::opt::ArgList &DriverArgs,
592  llvm::opt::ArgStringList &CC1Args) const;
593 
594  /// On Windows, returns the MSVC compatibility version.
595  virtual VersionTuple computeMSVCVersion(const Driver *D,
596  const llvm::opt::ArgList &Args) const;
597 
598  /// Return sanitizers which are available in this toolchain.
599  virtual SanitizerMask getSupportedSanitizers() const;
600 
601  /// Return sanitizers which are enabled by default.
603  return SanitizerMask();
604  }
605 
606  /// Returns true when it's possible to split LTO unit to use whole
607  /// program devirtualization and CFI santiizers.
608  virtual bool canSplitThinLTOUnit() const { return true; }
609 };
610 
611 /// Set a ToolChain's effective triple. Reset it when the registration object
612 /// is destroyed.
614  const ToolChain &TC;
615 
616 public:
617  RegisterEffectiveTriple(const ToolChain &TC, llvm::Triple T) : TC(TC) {
618  TC.setEffectiveTriple(std::move(T));
619  }
620 
621  ~RegisterEffectiveTriple() { TC.setEffectiveTriple(llvm::Triple()); }
622 };
623 
624 } // namespace driver
625 
626 } // namespace clang
627 
628 #endif // LLVM_CLANG_DRIVER_TOOLCHAIN_H
std::string ModeSuffix
Driver mode part of the executable name, as g++.
Definition: ToolChain.h:66
virtual const char * getDefaultLinker() const
GetDefaultLinker - Get the default linker to use.
Definition: ToolChain.h:373
Specialize PointerLikeTypeTraits to allow LazyGenerationalUpdatePtr to be placed into a PointerUnion...
Definition: Dominators.h:30
const MultilibSet & getMultilibs() const
Definition: ToolChain.h:243
StringRef getArchName() const
Definition: ToolChain.h:216
Set a ToolChain&#39;s effective triple.
Definition: ToolChain.h:613
virtual bool SupportsProfiling() const
SupportsProfiling - Does this tool chain support -pg.
Definition: ToolChain.h:437
virtual bool UseDwarfDebugFlags() const
UseDwarfDebugFlags - Embed the compile options to clang into the Dwarf compile unit information...
Definition: ToolChain.h:449
virtual std::string getThreadModel() const
getThreadModel() - Which thread model does this target use?
Definition: ToolChain.h:483
The base class of the type hierarchy.
Definition: Type.h:1450
StringRef getOS() const
Definition: ToolChain.h:218
virtual void printVerboseInfo(raw_ostream &OS) const
Dispatch to the specific toolchain for verbose printing.
Definition: ToolChain.h:316
RegisterEffectiveTriple(const ToolChain &TC, llvm::Triple T)
Definition: ToolChain.h:617
Defines the clang::SanitizerKind enum.
virtual bool hasBlocksRuntime() const
hasBlocksRuntime - Given that the user is compiling with -fblocks, does this tool chain guarantee the...
Definition: ToolChain.h:514
const Multilib & getMultilib() const
Definition: ToolChain.h:245
std::string TargetPrefix
Target part of the executable name, as i686-linux-android.
Definition: ToolChain.h:63
path_list & getProgramPaths()
Definition: ToolChain.h:240
virtual unsigned GetDefaultStackProtectorLevel(bool KernelOrKext) const
GetDefaultStackProtectorLevel - Get the default stack protector level for this tool chain (0=off...
Definition: ToolChain.h:362
std::string getTripleString() const
Definition: ToolChain.h:224
virtual const llvm::Triple * getAuxTriple() const
Get the toolchain&#39;s aux triple, if it has one.
Definition: ToolChain.h:208
Forward-declares and imports various common LLVM datatypes that clang wants to use unqualified...
InputInfo - Wrapper for information about an input source.
Definition: InputInfo.h:22
path_list & getFilePaths()
Definition: ToolChain.h:237
Driver - Encapsulate logic for constructing compilation processes from a set of gcc-driver-like comma...
Definition: Driver.h:59
const llvm::opt::Arg * getRTTIArg() const
Definition: ToolChain.h:252
const path_list & getFilePaths() const
Definition: ToolChain.h:238
const path_list & getProgramPaths() const
Definition: ToolChain.h:241
StringRef getPlatform() const
Definition: ToolChain.h:217
virtual void adjustDebugInfoKind(codegenoptions::DebugInfoKind &DebugInfoKind, const llvm::opt::ArgList &Args) const
Adjust debug information kind considering all passed options.
Definition: ToolChain.h:472
virtual bool IsIntegratedAssemblerDefault() const
IsIntegratedAssemblerDefault - Does this tool chain enable -integrated-as by default.
Definition: ToolChain.h:337
virtual bool canSplitThinLTOUnit() const
Returns true when it&#39;s possible to split LTO unit to use whole program devirtualization and CFI santi...
Definition: ToolChain.h:608
Defines the clang::LangOptions interface.
virtual bool SupportsEmbeddedBitcode() const
SupportsEmbeddedBitcode - Does this tool chain support embedded bitcode.
Definition: ToolChain.h:480
const llvm::Triple & getEffectiveTriple() const
Get the toolchain&#39;s effective clang triple.
Definition: ToolChain.h:229
virtual UnwindLibType GetDefaultUnwindLibType() const
Definition: ToolChain.h:384
virtual bool IsObjCNonFragileABIDefault() const
IsObjCNonFragileABIDefault - Does this tool chain set -fobjc-nonfragile-abi by default.
Definition: ToolChain.h:351
This corresponds to a single GCC Multilib, or a segment of one controlled by a command line flag...
Definition: Multilib.h:28
ParsedClangName(std::string Suffix, const char *Mode)
Definition: ToolChain.h:75
virtual bool supportsDebugInfoOption(const llvm::opt::Arg *) const
Does this toolchain supports given debug info option or not.
Definition: ToolChain.h:467
virtual CXXStdlibType GetDefaultCXXStdlibType() const
Definition: ToolChain.h:380
virtual bool IsMathErrnoDefault() const
IsMathErrnoDefault - Does this tool chain use -fmath-errno by default.
Definition: ToolChain.h:343
path_list & getLibraryPaths()
Definition: ToolChain.h:234
llvm::Triple::ArchType getArch() const
Definition: ToolChain.h:215
virtual bool UseObjCMixedDispatch() const
UseObjCMixedDispatchDefault - When using non-legacy dispatch, should the mixed dispatch method be use...
Definition: ToolChain.h:355
virtual bool IsEncodeExtendedBlockSignatureDefault() const
IsEncodeExtendedBlockSignatureDefault - Does this tool chain enable -fencode-extended-block-signature...
Definition: ToolChain.h:347
const Driver & getDriver() const
Definition: ToolChain.h:199
Helper structure used to pass information extracted from clang executable name such as i686-linux-and...
Definition: ToolChain.h:61
virtual SanitizerMask getDefaultSanitizers() const
Return sanitizers which are enabled by default.
Definition: ToolChain.h:602
Dataflow Directional Tag Classes.
virtual void CheckObjCARC() const
Complain if this tool chain doesn&#39;t support Objective-C ARC.
Definition: ToolChain.h:440
The basic abstraction for the target Objective-C runtime.
Definition: ObjCRuntime.h:27
virtual llvm::DebuggerKind getDefaultDebuggerTuning() const
Definition: ToolChain.h:462
Tool - Information on a specific compilation tool.
Definition: Tool.h:33
virtual unsigned GetDefaultDwarfVersion() const
Definition: ToolChain.h:453
RTTIMode getRTTIMode() const
Definition: ToolChain.h:255
virtual codegenoptions::DebugInfoFormat getDefaultDebugFormat() const
Get the default debug info format. Typically, this is DWARF.
Definition: ToolChain.h:443
const llvm::Triple & getTriple() const
Definition: ToolChain.h:201
virtual bool GetDefaultStandaloneDebug() const
Definition: ToolChain.h:459
virtual llvm::opt::DerivedArgList * TranslateArgs(const llvm::opt::DerivedArgList &Args, StringRef BoundArch, Action::OffloadKind DeviceOffloadKind) const
TranslateArgs - Create a new derived argument list for any argument translations this ToolChain may w...
Definition: ToolChain.h:284
virtual LangOptions::TrivialAutoVarInitKind GetDefaultTrivialAutoVarInit() const
Get the default trivial automatic variable initialization.
Definition: ToolChain.h:368
const path_list & getLibraryPaths() const
Definition: ToolChain.h:235
ParsedClangName(std::string Target, std::string Suffix, const char *Mode, bool IsRegistered)
Definition: ToolChain.h:77
virtual bool IsBlocksDefault() const
IsBlocksDefault - Does this tool chain enable -fblocks by default.
Definition: ToolChain.h:333
virtual RuntimeLibType GetDefaultRuntimeLibType() const
GetDefaultRuntimeLibType - Get the default runtime library variant to use.
Definition: ToolChain.h:376
ToolChain - Access to tools for a single platform.
Definition: ToolChain.h:88