1 //===- CompilerInvocation.cpp ---------------------------------------------===// 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 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticDriver.h" 18 #include "clang/Basic/DiagnosticOptions.h" 19 #include "clang/Basic/FileSystemOptions.h" 20 #include "clang/Basic/LLVM.h" 21 #include "clang/Basic/LangOptions.h" 22 #include "clang/Basic/LangStandard.h" 23 #include "clang/Basic/ObjCRuntime.h" 24 #include "clang/Basic/Sanitizers.h" 25 #include "clang/Basic/SourceLocation.h" 26 #include "clang/Basic/TargetOptions.h" 27 #include "clang/Basic/Version.h" 28 #include "clang/Basic/Visibility.h" 29 #include "clang/Basic/XRayInstr.h" 30 #include "clang/Config/config.h" 31 #include "clang/Driver/Driver.h" 32 #include "clang/Driver/DriverDiagnostic.h" 33 #include "clang/Driver/Options.h" 34 #include "clang/Frontend/CommandLineSourceLoc.h" 35 #include "clang/Frontend/DependencyOutputOptions.h" 36 #include "clang/Frontend/FrontendDiagnostic.h" 37 #include "clang/Frontend/FrontendOptions.h" 38 #include "clang/Frontend/FrontendPluginRegistry.h" 39 #include "clang/Frontend/MigratorOptions.h" 40 #include "clang/Frontend/PreprocessorOutputOptions.h" 41 #include "clang/Frontend/TextDiagnosticBuffer.h" 42 #include "clang/Frontend/Utils.h" 43 #include "clang/Lex/HeaderSearchOptions.h" 44 #include "clang/Lex/PreprocessorOptions.h" 45 #include "clang/Sema/CodeCompleteOptions.h" 46 #include "clang/Serialization/ASTBitCodes.h" 47 #include "clang/Serialization/ModuleFileExtension.h" 48 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 49 #include "llvm/ADT/APInt.h" 50 #include "llvm/ADT/ArrayRef.h" 51 #include "llvm/ADT/CachedHashString.h" 52 #include "llvm/ADT/DenseSet.h" 53 #include "llvm/ADT/FloatingPointMode.h" 54 #include "llvm/ADT/Hashing.h" 55 #include "llvm/ADT/None.h" 56 #include "llvm/ADT/Optional.h" 57 #include "llvm/ADT/STLExtras.h" 58 #include "llvm/ADT/SmallString.h" 59 #include "llvm/ADT/SmallVector.h" 60 #include "llvm/ADT/StringRef.h" 61 #include "llvm/ADT/StringSwitch.h" 62 #include "llvm/ADT/Triple.h" 63 #include "llvm/ADT/Twine.h" 64 #include "llvm/Config/llvm-config.h" 65 #include "llvm/IR/DebugInfoMetadata.h" 66 #include "llvm/Linker/Linker.h" 67 #include "llvm/MC/MCTargetOptions.h" 68 #include "llvm/Option/Arg.h" 69 #include "llvm/Option/ArgList.h" 70 #include "llvm/Option/OptSpecifier.h" 71 #include "llvm/Option/OptTable.h" 72 #include "llvm/Option/Option.h" 73 #include "llvm/ProfileData/InstrProfReader.h" 74 #include "llvm/Remarks/HotnessThresholdParser.h" 75 #include "llvm/Support/CodeGen.h" 76 #include "llvm/Support/Compiler.h" 77 #include "llvm/Support/Error.h" 78 #include "llvm/Support/ErrorHandling.h" 79 #include "llvm/Support/ErrorOr.h" 80 #include "llvm/Support/FileSystem.h" 81 #include "llvm/Support/Host.h" 82 #include "llvm/Support/MathExtras.h" 83 #include "llvm/Support/MemoryBuffer.h" 84 #include "llvm/Support/Path.h" 85 #include "llvm/Support/Process.h" 86 #include "llvm/Support/Regex.h" 87 #include "llvm/Support/VersionTuple.h" 88 #include "llvm/Support/VirtualFileSystem.h" 89 #include "llvm/Support/raw_ostream.h" 90 #include "llvm/Target/TargetOptions.h" 91 #include <algorithm> 92 #include <atomic> 93 #include <cassert> 94 #include <cstddef> 95 #include <cstring> 96 #include <memory> 97 #include <string> 98 #include <tuple> 99 #include <type_traits> 100 #include <utility> 101 #include <vector> 102 103 using namespace clang; 104 using namespace driver; 105 using namespace options; 106 using namespace llvm::opt; 107 108 //===----------------------------------------------------------------------===// 109 // Initialization. 110 //===----------------------------------------------------------------------===// 111 112 CompilerInvocationBase::CompilerInvocationBase() 113 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 114 DiagnosticOpts(new DiagnosticOptions()), 115 HeaderSearchOpts(new HeaderSearchOptions()), 116 PreprocessorOpts(new PreprocessorOptions()) {} 117 118 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 119 : LangOpts(new LangOptions(*X.getLangOpts())), 120 TargetOpts(new TargetOptions(X.getTargetOpts())), 121 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 122 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 123 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 124 125 CompilerInvocationBase::~CompilerInvocationBase() = default; 126 127 //===----------------------------------------------------------------------===// 128 // Normalizers 129 //===----------------------------------------------------------------------===// 130 131 #define SIMPLE_ENUM_VALUE_TABLE 132 #include "clang/Driver/Options.inc" 133 #undef SIMPLE_ENUM_VALUE_TABLE 134 135 static llvm::Optional<bool> 136 normalizeSimpleFlag(OptSpecifier Opt, unsigned TableIndex, const ArgList &Args, 137 DiagnosticsEngine &Diags, bool &Success) { 138 if (Args.hasArg(Opt)) 139 return true; 140 return None; 141 } 142 143 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 144 const ArgList &Args, 145 DiagnosticsEngine &, 146 bool &Success) { 147 if (Args.hasArg(Opt)) 148 return false; 149 return None; 150 } 151 152 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 153 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 154 /// unnecessary template instantiations and just ignore it with a variadic 155 /// argument. 156 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 157 const char *Spelling, 158 CompilerInvocation::StringAllocator, 159 Option::OptionClass, unsigned, /*T*/...) { 160 Args.push_back(Spelling); 161 } 162 163 template <typename T> static constexpr bool is_uint64_t_convertible() { 164 return !std::is_same<T, uint64_t>::value && 165 llvm::is_integral_or_enum<T>::value; 166 } 167 168 template <typename T, 169 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 170 static auto makeFlagToValueNormalizer(T Value) { 171 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 172 DiagnosticsEngine &, bool &Success) -> Optional<T> { 173 if (Args.hasArg(Opt)) 174 return Value; 175 return None; 176 }; 177 } 178 179 template <typename T, 180 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 181 static auto makeFlagToValueNormalizer(T Value) { 182 return makeFlagToValueNormalizer(uint64_t(Value)); 183 } 184 185 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 186 OptSpecifier OtherOpt) { 187 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 188 const ArgList &Args, DiagnosticsEngine &, 189 bool &Success) -> Optional<bool> { 190 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 191 return A->getOption().matches(Opt) ? Value : OtherValue; 192 } 193 return None; 194 }; 195 } 196 197 static auto makeBooleanOptionDenormalizer(bool Value) { 198 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 199 CompilerInvocation::StringAllocator, Option::OptionClass, 200 unsigned, bool KeyPath) { 201 if (KeyPath == Value) 202 Args.push_back(Spelling); 203 }; 204 } 205 206 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 207 const char *Spelling, 208 CompilerInvocation::StringAllocator SA, 209 Option::OptionClass OptClass, unsigned, 210 const Twine &Value) { 211 switch (OptClass) { 212 case Option::SeparateClass: 213 case Option::JoinedOrSeparateClass: 214 Args.push_back(Spelling); 215 Args.push_back(SA(Value)); 216 break; 217 case Option::JoinedClass: 218 case Option::CommaJoinedClass: 219 Args.push_back(SA(Twine(Spelling) + Value)); 220 break; 221 default: 222 llvm_unreachable("Cannot denormalize an option with option class " 223 "incompatible with string denormalization."); 224 } 225 } 226 227 template <typename T> 228 static void 229 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 230 CompilerInvocation::StringAllocator SA, 231 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 232 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 233 } 234 235 static Optional<SimpleEnumValue> 236 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 237 for (int I = 0, E = Table.Size; I != E; ++I) 238 if (Name == Table.Table[I].Name) 239 return Table.Table[I]; 240 241 return None; 242 } 243 244 static Optional<SimpleEnumValue> 245 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 246 for (int I = 0, E = Table.Size; I != E; ++I) 247 if (Value == Table.Table[I].Value) 248 return Table.Table[I]; 249 250 return None; 251 } 252 253 static llvm::Optional<unsigned> 254 normalizeSimpleEnum(OptSpecifier Opt, unsigned TableIndex, const ArgList &Args, 255 DiagnosticsEngine &Diags, bool &Success) { 256 assert(TableIndex < SimpleEnumValueTablesSize); 257 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 258 259 auto *Arg = Args.getLastArg(Opt); 260 if (!Arg) 261 return None; 262 263 StringRef ArgValue = Arg->getValue(); 264 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 265 return MaybeEnumVal->Value; 266 267 Success = false; 268 Diags.Report(diag::err_drv_invalid_value) 269 << Arg->getAsString(Args) << ArgValue; 270 return None; 271 } 272 273 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 274 const char *Spelling, 275 CompilerInvocation::StringAllocator SA, 276 Option::OptionClass OptClass, 277 unsigned TableIndex, unsigned Value) { 278 assert(TableIndex < SimpleEnumValueTablesSize); 279 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 280 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 281 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 282 MaybeEnumVal->Name); 283 } else { 284 llvm_unreachable("The simple enum value was not correctly defined in " 285 "the tablegen option description"); 286 } 287 } 288 289 template <typename T> 290 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 291 const char *Spelling, 292 CompilerInvocation::StringAllocator SA, 293 Option::OptionClass OptClass, 294 unsigned TableIndex, T Value) { 295 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 296 static_cast<unsigned>(Value)); 297 } 298 299 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 300 const ArgList &Args, 301 DiagnosticsEngine &Diags, 302 bool &Success) { 303 auto *Arg = Args.getLastArg(Opt); 304 if (!Arg) 305 return None; 306 return std::string(Arg->getValue()); 307 } 308 309 template <typename IntTy> 310 static Optional<IntTy> 311 normalizeStringIntegral(OptSpecifier Opt, int, const ArgList &Args, 312 DiagnosticsEngine &Diags, bool &Success) { 313 auto *Arg = Args.getLastArg(Opt); 314 if (!Arg) 315 return None; 316 IntTy Res; 317 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 318 Success = false; 319 Diags.Report(diag::err_drv_invalid_int_value) 320 << Arg->getAsString(Args) << Arg->getValue(); 321 return None; 322 } 323 return Res; 324 } 325 326 static Optional<std::vector<std::string>> 327 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 328 DiagnosticsEngine &, bool &Success) { 329 return Args.getAllArgValues(Opt); 330 } 331 332 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 333 const char *Spelling, 334 CompilerInvocation::StringAllocator SA, 335 Option::OptionClass OptClass, 336 unsigned TableIndex, 337 const std::vector<std::string> &Values) { 338 switch (OptClass) { 339 case Option::CommaJoinedClass: { 340 std::string CommaJoinedValue; 341 if (!Values.empty()) { 342 CommaJoinedValue.append(Values.front()); 343 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 344 CommaJoinedValue.append(","); 345 CommaJoinedValue.append(Value); 346 } 347 } 348 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 349 TableIndex, CommaJoinedValue); 350 break; 351 } 352 case Option::JoinedClass: 353 case Option::SeparateClass: 354 case Option::JoinedOrSeparateClass: 355 for (const std::string &Value : Values) 356 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 357 break; 358 default: 359 llvm_unreachable("Cannot denormalize an option with option class " 360 "incompatible with string vector denormalization."); 361 } 362 } 363 364 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 365 const ArgList &Args, 366 DiagnosticsEngine &Diags, 367 bool &Success) { 368 auto *Arg = Args.getLastArg(Opt); 369 if (!Arg) 370 return None; 371 return llvm::Triple::normalize(Arg->getValue()); 372 } 373 374 template <typename T, typename U> 375 static T mergeForwardValue(T KeyPath, U Value) { 376 return static_cast<T>(Value); 377 } 378 379 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 380 return KeyPath | Value; 381 } 382 383 template <typename T> static T extractForwardValue(T KeyPath) { 384 return KeyPath; 385 } 386 387 template <typename T, typename U, U Value> 388 static T extractMaskValue(T KeyPath) { 389 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 390 } 391 392 #define PARSE_OPTION_WITH_MARSHALLING(ARGS, DIAGS, SUCCESS, ID, FLAGS, PARAM, \ 393 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 394 IMPLIED_CHECK, IMPLIED_VALUE, \ 395 NORMALIZER, MERGER, TABLE_INDEX) \ 396 if ((FLAGS)&options::CC1Option) { \ 397 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 398 if (IMPLIED_CHECK) \ 399 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 400 if (SHOULD_PARSE) \ 401 if (auto MaybeValue = \ 402 NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS, SUCCESS)) \ 403 KEYPATH = \ 404 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 405 } 406 407 // Capture the extracted value as a lambda argument to avoid potential issues 408 // with lifetime extension of the reference. 409 #define GENERATE_OPTION_WITH_MARSHALLING( \ 410 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 411 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 412 TABLE_INDEX) \ 413 if ((FLAGS)&options::CC1Option) { \ 414 [&](const auto &Extracted) { \ 415 if (ALWAYS_EMIT || \ 416 (Extracted != \ 417 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 418 : (DEFAULT_VALUE)))) \ 419 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 420 TABLE_INDEX, Extracted); \ 421 }(EXTRACTOR(KEYPATH)); \ 422 } 423 424 static const StringRef GetInputKindName(InputKind IK); 425 426 static void FixupInvocation(CompilerInvocation &Invocation, 427 DiagnosticsEngine &Diags, const InputArgList &Args, 428 InputKind IK) { 429 LangOptions &LangOpts = *Invocation.getLangOpts(); 430 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 431 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 432 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 433 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 434 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 435 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 436 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 437 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 438 439 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 440 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 441 LangOpts.CurrentModule = LangOpts.ModuleName; 442 443 llvm::Triple T(TargetOpts.Triple); 444 llvm::Triple::ArchType Arch = T.getArch(); 445 446 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 447 448 if (LangOpts.getExceptionHandling() != llvm::ExceptionHandling::None && 449 T.isWindowsMSVCEnvironment()) 450 Diags.Report(diag::err_fe_invalid_exception_model) 451 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 452 453 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 454 Diags.Report(diag::warn_c_kext); 455 456 if (Args.hasArg(OPT_fconcepts_ts)) 457 Diags.Report(diag::warn_fe_concepts_ts_flag); 458 459 if (LangOpts.NewAlignOverride && 460 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 461 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 462 Diags.Report(diag::err_fe_invalid_alignment) 463 << A->getAsString(Args) << A->getValue(); 464 LangOpts.NewAlignOverride = 0; 465 } 466 467 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 468 Diags.Report(diag::err_drv_argument_not_allowed_with) 469 << "-fgnu89-inline" << GetInputKindName(IK); 470 471 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 472 Diags.Report(diag::warn_ignored_hip_only_option) 473 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 474 475 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 476 Diags.Report(diag::warn_ignored_hip_only_option) 477 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 478 479 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 480 // This option should be deprecated for CL > 1.0 because 481 // this option was added for compatibility with OpenCL 1.0. 482 if (Args.getLastArg(OPT_cl_strict_aliasing) && LangOpts.OpenCLVersion > 100) 483 Diags.Report(diag::warn_option_invalid_ocl_version) 484 << LangOpts.getOpenCLVersionTuple().getAsString() 485 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 486 487 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 488 auto DefaultCC = LangOpts.getDefaultCallingConv(); 489 490 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 491 DefaultCC == LangOptions::DCC_StdCall) && 492 Arch != llvm::Triple::x86; 493 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 494 DefaultCC == LangOptions::DCC_RegCall) && 495 !T.isX86(); 496 if (emitError) 497 Diags.Report(diag::err_drv_argument_not_allowed_with) 498 << A->getSpelling() << T.getTriple(); 499 } 500 501 if (!CodeGenOpts.ProfileRemappingFile.empty() && CodeGenOpts.LegacyPassManager) 502 Diags.Report(diag::err_drv_argument_only_allowed_with) 503 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 504 << "-fno-legacy-pass-manager"; 505 } 506 507 //===----------------------------------------------------------------------===// 508 // Deserialization (from args) 509 //===----------------------------------------------------------------------===// 510 511 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 512 DiagnosticsEngine &Diags) { 513 unsigned DefaultOpt = llvm::CodeGenOpt::None; 514 if (IK.getLanguage() == Language::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 515 DefaultOpt = llvm::CodeGenOpt::Default; 516 517 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 518 if (A->getOption().matches(options::OPT_O0)) 519 return llvm::CodeGenOpt::None; 520 521 if (A->getOption().matches(options::OPT_Ofast)) 522 return llvm::CodeGenOpt::Aggressive; 523 524 assert(A->getOption().matches(options::OPT_O)); 525 526 StringRef S(A->getValue()); 527 if (S == "s" || S == "z") 528 return llvm::CodeGenOpt::Default; 529 530 if (S == "g") 531 return llvm::CodeGenOpt::Less; 532 533 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 534 } 535 536 return DefaultOpt; 537 } 538 539 static unsigned getOptimizationLevelSize(ArgList &Args) { 540 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 541 if (A->getOption().matches(options::OPT_O)) { 542 switch (A->getValue()[0]) { 543 default: 544 return 0; 545 case 's': 546 return 1; 547 case 'z': 548 return 2; 549 } 550 } 551 } 552 return 0; 553 } 554 555 static void GenerateArg(SmallVectorImpl<const char *> &Args, 556 llvm::opt::OptSpecifier OptSpecifier, 557 CompilerInvocation::StringAllocator SA) { 558 Option Opt = getDriverOptTable().getOption(OptSpecifier); 559 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 560 Option::OptionClass::FlagClass, 0); 561 } 562 563 static void GenerateArg(SmallVectorImpl<const char *> &Args, 564 llvm::opt::OptSpecifier OptSpecifier, 565 const Twine &Value, 566 CompilerInvocation::StringAllocator SA) { 567 Option Opt = getDriverOptTable().getOption(OptSpecifier); 568 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 569 Opt.getKind(), 0, Value); 570 } 571 572 // Parse subset of command line arguments into a member of CompilerInvocation. 573 using ParseFn = llvm::function_ref<bool(CompilerInvocation &, ArgList &, 574 DiagnosticsEngine &)>; 575 576 // Generate part of command line arguments from a member of CompilerInvocation. 577 using GenerateFn = llvm::function_ref<void( 578 CompilerInvocation &, SmallVectorImpl<const char *> &, 579 CompilerInvocation::StringAllocator)>; 580 581 // Swap between dummy/real instance of a CompilerInvocation member. 582 using SwapOptsFn = llvm::function_ref<void(CompilerInvocation &)>; 583 584 // Performs round-trip of command line arguments if OriginalArgs contain 585 // "-round-trip-args". Effectively runs the Parse function for a part of 586 // CompilerInvocation on command line arguments that were already once parsed 587 // and generated. This is used to check the Generate function produces arguments 588 // that are semantically equivalent to those that were used to create 589 // CompilerInvocation. 590 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, SwapOptsFn SwapOpts, 591 CompilerInvocation &Res, ArgList &OriginalArgs, 592 DiagnosticsEngine &Diags, StringRef OptsName) { 593 // FIXME: Switch to '#ifndef NDEBUG' when possible. 594 #ifdef CLANG_ROUND_TRIP_CC1_ARGS 595 bool DoRoundTripDefault = true; 596 #else 597 bool DoRoundTripDefault = false; 598 #endif 599 600 bool DoRoundTrip = OriginalArgs.hasFlag( 601 OPT_round_trip_args, OPT_no_round_trip_args, DoRoundTripDefault); 602 603 // If round-trip was not requested, simply run the parser with the original 604 // options and diagnostics. 605 if (!DoRoundTrip) 606 return Parse(Res, OriginalArgs, Diags); 607 608 // Serializes quoted (and potentially escaped) arguments. 609 auto SerializeArgs = [](ArgStringList &Args) { 610 std::string Buffer; 611 llvm::raw_string_ostream OS(Buffer); 612 for (const char *Arg : Args) { 613 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 614 OS << ' '; 615 } 616 OS.flush(); 617 return Buffer; 618 }; 619 620 OriginalArgs.clearQueriedOpts(); 621 622 // Setup a dummy DiagnosticsEngine. 623 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 624 DummyDiags.setClient(new TextDiagnosticBuffer()); 625 626 // Run the first parse on the original arguments with dummy options and 627 // diagnostics. 628 SwapOpts(Res); 629 if (!Parse(Res, OriginalArgs, DummyDiags) || 630 DummyDiags.getNumWarnings() != 0) { 631 // If the first parse did not succeed, it must be user mistake (invalid 632 // command line arguments). We won't be able to generate arguments that 633 // would reproduce the same result. Let's fail again with the original 634 // options and diagnostics, so all side-effects of parsing are visible. 635 unsigned NumWarningsBefore = Diags.getNumWarnings(); 636 SwapOpts(Res); 637 auto Success = Parse(Res, OriginalArgs, Diags); 638 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 639 return Success; 640 641 // Parse with original options and diagnostics succeeded even though it 642 // shouldn't have. Something is off. 643 Diags.Report(diag::err_cc1_round_trip_fail_then_ok) << OptsName; 644 ArgStringList OriginalStrings; 645 OriginalArgs.AddAllArgsExcept(OriginalStrings, {}); 646 Diags.Report(diag::note_cc1_round_trip_original) 647 << OptsName << SerializeArgs(OriginalStrings); 648 return false; 649 } 650 651 // Setup string allocator. 652 llvm::BumpPtrAllocator Alloc; 653 llvm::StringSaver StringPool(Alloc); 654 auto SA = [&StringPool](const Twine &Arg) { 655 return StringPool.save(Arg).data(); 656 }; 657 658 // Generate arguments. First simply copy any arguments the parser did not 659 // query. Then, use the Generate function that uses the CompilerInvocation 660 // options instance as the source of truth. If Generate is the inverse of 661 // Parse, the newly generated arguments must have the same semantics as the 662 // original. 663 ArgStringList GeneratedStrings1; 664 OriginalArgs.AddAllArgsExcept(GeneratedStrings1, 665 OriginalArgs.getQueriedOpts()); 666 Generate(Res, GeneratedStrings1, SA); 667 668 // Process the generated arguments. 669 unsigned MissingArgIndex1, MissingArgCount1; 670 InputArgList GeneratedArgs1 = 671 getDriverOptTable().ParseArgs(GeneratedStrings1, MissingArgIndex1, 672 MissingArgCount1, options::CC1Option); 673 674 // TODO: Once we're responsible for generating all arguments, check that we 675 // didn't create any unknown options or omitted required values. 676 677 // Run the second parse, now on the generated arguments, and with the original 678 // options and diagnostics. The result is what we will end up using for the 679 // rest of compilation, so if Generate is not inverse of Parse, something down 680 // the line will break. 681 SwapOpts(Res); 682 bool Success2 = Parse(Res, GeneratedArgs1, Diags); 683 684 // The first parse on original arguments succeeded, but second parse of 685 // generated arguments failed. Something must be wrong with the generator. 686 if (!Success2) { 687 Diags.Report(diag::err_cc1_round_trip_ok_then_fail) << OptsName; 688 Diags.Report(diag::note_cc1_round_trip_generated) 689 << OptsName << 1 << SerializeArgs(GeneratedStrings1); 690 return false; 691 } 692 693 // Generate arguments again, this time from the options we will end up using 694 // for the rest of the compilation. 695 ArgStringList GeneratedStrings2; 696 GeneratedArgs1.AddAllArgsExcept(GeneratedStrings2, 697 GeneratedArgs1.getQueriedOpts()); 698 Generate(Res, GeneratedStrings2, SA); 699 700 // Compares two lists of generated arguments. 701 auto Equal = [](const ArgStringList &A, const ArgStringList &B) { 702 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 703 [](const char *AElem, const char *BElem) { 704 return StringRef(AElem) == StringRef(BElem); 705 }); 706 }; 707 708 // If we generated different arguments from what we assume are two 709 // semantically equivalent CompilerInvocations, the Generate function may 710 // be non-deterministic. 711 if (!Equal(GeneratedStrings1, GeneratedStrings2)) { 712 Diags.Report(diag::err_cc1_round_trip_mismatch) << OptsName; 713 Diags.Report(diag::note_cc1_round_trip_generated) 714 << OptsName << 1 << SerializeArgs(GeneratedStrings1); 715 Diags.Report(diag::note_cc1_round_trip_generated) 716 << OptsName << 2 << SerializeArgs(GeneratedStrings2); 717 return false; 718 } 719 720 Diags.Report(diag::remark_cc1_round_trip_generated) 721 << OptsName << 1 << SerializeArgs(GeneratedStrings1); 722 Diags.Report(diag::remark_cc1_round_trip_generated) 723 << OptsName << 2 << SerializeArgs(GeneratedStrings2); 724 725 return Success2; 726 } 727 728 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 729 OptSpecifier GroupWithValue, 730 std::vector<std::string> &Diagnostics) { 731 for (auto *A : Args.filtered(Group)) { 732 if (A->getOption().getKind() == Option::FlagClass) { 733 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 734 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 735 Diagnostics.push_back( 736 std::string(A->getOption().getName().drop_front(1))); 737 } else if (A->getOption().matches(GroupWithValue)) { 738 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 739 // group. Add only the group name to the diagnostics. 740 Diagnostics.push_back( 741 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 742 } else { 743 // Otherwise, add its value (for OPT_W_Joined and similar). 744 Diagnostics.push_back(A->getValue()); 745 } 746 } 747 } 748 749 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 750 // it won't verify the input. 751 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 752 DiagnosticsEngine *Diags); 753 754 static void getAllNoBuiltinFuncValues(ArgList &Args, 755 std::vector<std::string> &Funcs) { 756 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 757 auto BuiltinEnd = llvm::partition(Values, [](const std::string FuncName) { 758 return Builtin::Context::isBuiltinFunc(FuncName); 759 }); 760 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 761 } 762 763 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 764 SmallVectorImpl<const char *> &Args, 765 CompilerInvocation::StringAllocator SA) { 766 const AnalyzerOptions *AnalyzerOpts = &Opts; 767 768 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 769 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 770 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 771 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 772 MERGER, EXTRACTOR, TABLE_INDEX) \ 773 GENERATE_OPTION_WITH_MARSHALLING( \ 774 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 775 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 776 #include "clang/Driver/Options.inc" 777 #undef ANALYZER_OPTION_WITH_MARSHALLING 778 779 if (Opts.AnalysisStoreOpt != RegionStoreModel) { 780 switch (Opts.AnalysisStoreOpt) { 781 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 782 case NAME##Model: \ 783 GenerateArg(Args, OPT_analyzer_store, CMDFLAG, SA); \ 784 break; 785 #include "clang/StaticAnalyzer/Core/Analyses.def" 786 default: 787 llvm_unreachable("Tried to generate unknown analysis store."); 788 } 789 } 790 791 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 792 switch (Opts.AnalysisConstraintsOpt) { 793 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 794 case NAME##Model: \ 795 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 796 break; 797 #include "clang/StaticAnalyzer/Core/Analyses.def" 798 default: 799 llvm_unreachable("Tried to generate unknown analysis constraint."); 800 } 801 } 802 803 if (Opts.AnalysisDiagOpt != PD_HTML) { 804 switch (Opts.AnalysisDiagOpt) { 805 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 806 case PD_##NAME: \ 807 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 808 break; 809 #include "clang/StaticAnalyzer/Core/Analyses.def" 810 default: 811 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 812 } 813 } 814 815 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 816 switch (Opts.AnalysisPurgeOpt) { 817 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 818 case NAME: \ 819 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 820 break; 821 #include "clang/StaticAnalyzer/Core/Analyses.def" 822 default: 823 llvm_unreachable("Tried to generate unknown analysis purge mode."); 824 } 825 } 826 827 if (Opts.InliningMode != NoRedundancy) { 828 switch (Opts.InliningMode) { 829 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 830 case NAME: \ 831 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 832 break; 833 #include "clang/StaticAnalyzer/Core/Analyses.def" 834 default: 835 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 836 } 837 } 838 839 for (const auto &CP : Opts.CheckersAndPackages) { 840 OptSpecifier Opt = 841 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 842 GenerateArg(Args, Opt, CP.first, SA); 843 } 844 845 AnalyzerOptions ConfigOpts; 846 parseAnalyzerConfigs(ConfigOpts, nullptr); 847 848 for (const auto &C : Opts.Config) { 849 // Don't generate anything that came from parseAnalyzerConfigs. It would be 850 // redundant and may not be valid on the command line. 851 auto Entry = ConfigOpts.Config.find(C.getKey()); 852 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 853 continue; 854 855 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 856 } 857 858 // Nothing to generate for FullCompilerInvocation. 859 } 860 861 static bool ParseAnalyzerArgsImpl(AnalyzerOptions &Opts, ArgList &Args, 862 DiagnosticsEngine &Diags) { 863 AnalyzerOptions *AnalyzerOpts = &Opts; 864 bool Success = true; 865 866 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 867 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 868 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 869 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 870 MERGER, EXTRACTOR, TABLE_INDEX) \ 871 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 872 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 873 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 874 MERGER, TABLE_INDEX) 875 #include "clang/Driver/Options.inc" 876 #undef ANALYZER_OPTION_WITH_MARSHALLING 877 878 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 879 StringRef Name = A->getValue(); 880 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 881 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 882 .Case(CMDFLAG, NAME##Model) 883 #include "clang/StaticAnalyzer/Core/Analyses.def" 884 .Default(NumStores); 885 if (Value == NumStores) { 886 Diags.Report(diag::err_drv_invalid_value) 887 << A->getAsString(Args) << Name; 888 Success = false; 889 } else { 890 Opts.AnalysisStoreOpt = Value; 891 } 892 } 893 894 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 895 StringRef Name = A->getValue(); 896 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 897 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 898 .Case(CMDFLAG, NAME##Model) 899 #include "clang/StaticAnalyzer/Core/Analyses.def" 900 .Default(NumConstraints); 901 if (Value == NumConstraints) { 902 Diags.Report(diag::err_drv_invalid_value) 903 << A->getAsString(Args) << Name; 904 Success = false; 905 } else { 906 Opts.AnalysisConstraintsOpt = Value; 907 } 908 } 909 910 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 911 StringRef Name = A->getValue(); 912 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 913 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 914 .Case(CMDFLAG, PD_##NAME) 915 #include "clang/StaticAnalyzer/Core/Analyses.def" 916 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 917 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 918 Diags.Report(diag::err_drv_invalid_value) 919 << A->getAsString(Args) << Name; 920 Success = false; 921 } else { 922 Opts.AnalysisDiagOpt = Value; 923 } 924 } 925 926 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 927 StringRef Name = A->getValue(); 928 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 929 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 930 .Case(CMDFLAG, NAME) 931 #include "clang/StaticAnalyzer/Core/Analyses.def" 932 .Default(NumPurgeModes); 933 if (Value == NumPurgeModes) { 934 Diags.Report(diag::err_drv_invalid_value) 935 << A->getAsString(Args) << Name; 936 Success = false; 937 } else { 938 Opts.AnalysisPurgeOpt = Value; 939 } 940 } 941 942 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 943 StringRef Name = A->getValue(); 944 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 945 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 946 .Case(CMDFLAG, NAME) 947 #include "clang/StaticAnalyzer/Core/Analyses.def" 948 .Default(NumInliningModes); 949 if (Value == NumInliningModes) { 950 Diags.Report(diag::err_drv_invalid_value) 951 << A->getAsString(Args) << Name; 952 Success = false; 953 } else { 954 Opts.InliningMode = Value; 955 } 956 } 957 958 Opts.CheckersAndPackages.clear(); 959 for (const Arg *A : 960 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 961 A->claim(); 962 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 963 // We can have a list of comma separated checker names, e.g: 964 // '-analyzer-checker=cocoa,unix' 965 StringRef CheckerAndPackageList = A->getValue(); 966 SmallVector<StringRef, 16> CheckersAndPackages; 967 CheckerAndPackageList.split(CheckersAndPackages, ","); 968 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 969 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 970 IsEnabled); 971 } 972 973 // Go through the analyzer configuration options. 974 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 975 976 // We can have a list of comma separated config names, e.g: 977 // '-analyzer-config key1=val1,key2=val2' 978 StringRef configList = A->getValue(); 979 SmallVector<StringRef, 4> configVals; 980 configList.split(configVals, ","); 981 for (const auto &configVal : configVals) { 982 StringRef key, val; 983 std::tie(key, val) = configVal.split("="); 984 if (val.empty()) { 985 Diags.Report(SourceLocation(), 986 diag::err_analyzer_config_no_value) << configVal; 987 Success = false; 988 break; 989 } 990 if (val.find('=') != StringRef::npos) { 991 Diags.Report(SourceLocation(), 992 diag::err_analyzer_config_multiple_values) 993 << configVal; 994 Success = false; 995 break; 996 } 997 998 // TODO: Check checker options too, possibly in CheckerRegistry. 999 // Leave unknown non-checker configs unclaimed. 1000 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1001 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) { 1002 Diags.Report(diag::err_analyzer_config_unknown) << key; 1003 Success = false; 1004 } 1005 continue; 1006 } 1007 1008 A->claim(); 1009 Opts.Config[key] = std::string(val); 1010 } 1011 } 1012 1013 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1014 parseAnalyzerConfigs(Opts, &Diags); 1015 else 1016 parseAnalyzerConfigs(Opts, nullptr); 1017 1018 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1019 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1020 if (i != 0) 1021 os << " "; 1022 os << Args.getArgString(i); 1023 } 1024 os.flush(); 1025 1026 return Success; 1027 } 1028 1029 static bool ParseAnalyzerArgs(CompilerInvocation &Res, AnalyzerOptions &Opts, 1030 ArgList &Args, DiagnosticsEngine &Diags) { 1031 auto DummyOpts = IntrusiveRefCntPtr<AnalyzerOptions>(new AnalyzerOptions()); 1032 1033 return RoundTrip( 1034 [](CompilerInvocation &Res, ArgList &Args, DiagnosticsEngine &Diags) { 1035 return ParseAnalyzerArgsImpl(*Res.getAnalyzerOpts(), Args, Diags); 1036 }, 1037 [](CompilerInvocation &Res, SmallVectorImpl<const char *> &Args, 1038 CompilerInvocation::StringAllocator SA) { 1039 GenerateAnalyzerArgs(*Res.getAnalyzerOpts(), Args, SA); 1040 }, 1041 [&DummyOpts](CompilerInvocation &Res) { 1042 Res.getAnalyzerOpts().swap(DummyOpts); 1043 }, 1044 Res, Args, Diags, "AnalyzerOptions"); 1045 } 1046 1047 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1048 StringRef OptionName, StringRef DefaultVal) { 1049 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1050 } 1051 1052 static void initOption(AnalyzerOptions::ConfigTable &Config, 1053 DiagnosticsEngine *Diags, 1054 StringRef &OptionField, StringRef Name, 1055 StringRef DefaultVal) { 1056 // String options may be known to invalid (e.g. if the expected string is a 1057 // file name, but the file does not exist), those will have to be checked in 1058 // parseConfigs. 1059 OptionField = getStringOption(Config, Name, DefaultVal); 1060 } 1061 1062 static void initOption(AnalyzerOptions::ConfigTable &Config, 1063 DiagnosticsEngine *Diags, 1064 bool &OptionField, StringRef Name, bool DefaultVal) { 1065 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1066 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1067 .Case("true", true) 1068 .Case("false", false) 1069 .Default(None); 1070 1071 if (!PossiblyInvalidVal) { 1072 if (Diags) 1073 Diags->Report(diag::err_analyzer_config_invalid_input) 1074 << Name << "a boolean"; 1075 else 1076 OptionField = DefaultVal; 1077 } else 1078 OptionField = PossiblyInvalidVal.getValue(); 1079 } 1080 1081 static void initOption(AnalyzerOptions::ConfigTable &Config, 1082 DiagnosticsEngine *Diags, 1083 unsigned &OptionField, StringRef Name, 1084 unsigned DefaultVal) { 1085 1086 OptionField = DefaultVal; 1087 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1088 .getAsInteger(0, OptionField); 1089 if (Diags && HasFailed) 1090 Diags->Report(diag::err_analyzer_config_invalid_input) 1091 << Name << "an unsigned"; 1092 } 1093 1094 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1095 DiagnosticsEngine *Diags) { 1096 // TODO: There's no need to store the entire configtable, it'd be plenty 1097 // enough tostore checker options. 1098 1099 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1100 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1101 1102 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1103 SHALLOW_VAL, DEEP_VAL) \ 1104 switch (AnOpts.getUserMode()) { \ 1105 case UMK_Shallow: \ 1106 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 1107 break; \ 1108 case UMK_Deep: \ 1109 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 1110 break; \ 1111 } \ 1112 1113 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1114 #undef ANALYZER_OPTION 1115 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 1116 1117 // At this point, AnalyzerOptions is configured. Let's validate some options. 1118 1119 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1120 // The current approach only validates the registered checkers which does not 1121 // contain the runtime enabled checkers and optimally we would validate both. 1122 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1123 std::vector<StringRef> Checkers = 1124 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1125 std::vector<StringRef> Packages = 1126 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1127 1128 SmallVector<StringRef, 16> CheckersAndPackages; 1129 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1130 1131 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1132 if (Diags) { 1133 bool IsChecker = CheckerOrPackage.contains('.'); 1134 bool IsValidName = 1135 IsChecker 1136 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 1137 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 1138 1139 if (!IsValidName) 1140 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1141 << CheckerOrPackage; 1142 } 1143 1144 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1145 } 1146 } 1147 1148 if (!Diags) 1149 return; 1150 1151 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1152 Diags->Report(diag::err_analyzer_config_invalid_input) 1153 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1154 1155 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1156 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1157 << "a filename"; 1158 1159 if (!AnOpts.ModelPath.empty() && 1160 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1161 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1162 << "a filename"; 1163 } 1164 1165 /// Create a new Regex instance out of the string value in \p RpassArg. 1166 /// It returns the string and a pointer to the newly generated Regex instance. 1167 static CodeGenOptions::RemarkPattern 1168 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 1169 Arg *RpassArg) { 1170 StringRef Val = RpassArg->getValue(); 1171 std::string RegexError; 1172 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 1173 if (!Pattern->isValid(RegexError)) { 1174 Diags.Report(diag::err_drv_optimization_remark_pattern) 1175 << RegexError << RpassArg->getAsString(Args); 1176 Pattern.reset(); 1177 } 1178 return {std::string(Val), Pattern}; 1179 } 1180 1181 static bool parseDiagnosticLevelMask(StringRef FlagName, 1182 const std::vector<std::string> &Levels, 1183 DiagnosticsEngine &Diags, 1184 DiagnosticLevelMask &M) { 1185 bool Success = true; 1186 for (const auto &Level : Levels) { 1187 DiagnosticLevelMask const PM = 1188 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1189 .Case("note", DiagnosticLevelMask::Note) 1190 .Case("remark", DiagnosticLevelMask::Remark) 1191 .Case("warning", DiagnosticLevelMask::Warning) 1192 .Case("error", DiagnosticLevelMask::Error) 1193 .Default(DiagnosticLevelMask::None); 1194 if (PM == DiagnosticLevelMask::None) { 1195 Success = false; 1196 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1197 } 1198 M = M | PM; 1199 } 1200 return Success; 1201 } 1202 1203 static void parseSanitizerKinds(StringRef FlagName, 1204 const std::vector<std::string> &Sanitizers, 1205 DiagnosticsEngine &Diags, SanitizerSet &S) { 1206 for (const auto &Sanitizer : Sanitizers) { 1207 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1208 if (K == SanitizerMask()) 1209 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1210 else 1211 S.set(K, true); 1212 } 1213 } 1214 1215 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1216 SmallVector<StringRef, 4> Values; 1217 serializeSanitizerSet(S, Values); 1218 return Values; 1219 } 1220 1221 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1222 ArgList &Args, DiagnosticsEngine &D, 1223 XRayInstrSet &S) { 1224 llvm::SmallVector<StringRef, 2> BundleParts; 1225 llvm::SplitString(Bundle, BundleParts, ","); 1226 for (const auto &B : BundleParts) { 1227 auto Mask = parseXRayInstrValue(B); 1228 if (Mask == XRayInstrKind::None) 1229 if (B != "none") 1230 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1231 else 1232 S.Mask = Mask; 1233 else if (Mask == XRayInstrKind::All) 1234 S.Mask = Mask; 1235 else 1236 S.set(Mask, true); 1237 } 1238 } 1239 1240 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1241 llvm::SmallVector<StringRef, 2> BundleParts; 1242 serializeXRayInstrValue(S, BundleParts); 1243 std::string Buffer; 1244 llvm::raw_string_ostream OS(Buffer); 1245 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1246 return OS.str(); 1247 } 1248 1249 // Set the profile kind using fprofile-instrument-use-path. 1250 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1251 const Twine &ProfileName) { 1252 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1253 // In error, return silently and let Clang PGOUse report the error message. 1254 if (auto E = ReaderOrErr.takeError()) { 1255 llvm::consumeError(std::move(E)); 1256 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1257 return; 1258 } 1259 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1260 std::move(ReaderOrErr.get()); 1261 if (PGOReader->isIRLevelProfile()) { 1262 if (PGOReader->hasCSIRLevelProfile()) 1263 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1264 else 1265 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1266 } else 1267 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1268 } 1269 1270 void CompilerInvocation::GenerateCodeGenArgs( 1271 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1272 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1273 const LangOptions *LangOpts) { 1274 const CodeGenOptions &CodeGenOpts = Opts; 1275 1276 if (Opts.OptimizationLevel == 0) 1277 GenerateArg(Args, OPT_O0, SA); 1278 else 1279 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1280 1281 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1282 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1283 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1284 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1285 MERGER, EXTRACTOR, TABLE_INDEX) \ 1286 GENERATE_OPTION_WITH_MARSHALLING( \ 1287 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1288 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1289 #include "clang/Driver/Options.inc" 1290 #undef CODEGEN_OPTION_WITH_MARSHALLING 1291 1292 if (Opts.OptimizationLevel > 0) { 1293 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1294 GenerateArg(Args, OPT_finline_functions, SA); 1295 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1296 GenerateArg(Args, OPT_finline_hint_functions, SA); 1297 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1298 GenerateArg(Args, OPT_fno_inline, SA); 1299 } 1300 1301 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1302 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1303 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1304 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1305 1306 Optional<StringRef> DebugInfoVal; 1307 switch (Opts.DebugInfo) { 1308 case codegenoptions::DebugLineTablesOnly: 1309 DebugInfoVal = "line-tables-only"; 1310 break; 1311 case codegenoptions::DebugDirectivesOnly: 1312 DebugInfoVal = "line-directives-only"; 1313 break; 1314 case codegenoptions::DebugInfoConstructor: 1315 DebugInfoVal = "constructor"; 1316 break; 1317 case codegenoptions::LimitedDebugInfo: 1318 DebugInfoVal = "limited"; 1319 break; 1320 case codegenoptions::FullDebugInfo: 1321 DebugInfoVal = "standalone"; 1322 break; 1323 case codegenoptions::UnusedTypeInfo: 1324 DebugInfoVal = "unused-types"; 1325 break; 1326 case codegenoptions::NoDebugInfo: // default value 1327 DebugInfoVal = None; 1328 break; 1329 case codegenoptions::LocTrackingOnly: // implied value 1330 DebugInfoVal = None; 1331 break; 1332 } 1333 if (DebugInfoVal) 1334 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1335 1336 if (Opts.DebugInfo == codegenoptions::DebugInfoConstructor) 1337 GenerateArg(Args, OPT_fuse_ctor_homing, SA); 1338 1339 for (const auto &Prefix : Opts.DebugPrefixMap) 1340 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1341 Prefix.first + "=" + Prefix.second, SA); 1342 1343 for (const auto &Prefix : Opts.ProfilePrefixMap) 1344 GenerateArg(Args, OPT_fprofile_prefix_map_EQ, 1345 Prefix.first + "=" + Prefix.second, SA); 1346 1347 if (Opts.NewStructPathTBAA) 1348 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1349 1350 if (Opts.OptimizeSize == 1) 1351 GenerateArg(Args, OPT_O, "s", SA); 1352 else if (Opts.OptimizeSize == 2) 1353 GenerateArg(Args, OPT_O, "z", SA); 1354 1355 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1356 // -ffreestanding. We'll consider that when generating them. 1357 1358 // NoBuiltinFuncs are generated by LangOptions. 1359 1360 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1361 GenerateArg(Args, OPT_funroll_loops, SA); 1362 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1363 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1364 1365 if (!Opts.BinutilsVersion.empty()) 1366 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1367 1368 if (Opts.DebugNameTable == 1369 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1370 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1371 else if (Opts.DebugNameTable == 1372 static_cast<unsigned>( 1373 llvm::DICompileUnit::DebugNameTableKind::Default)) 1374 GenerateArg(Args, OPT_gpubnames, SA); 1375 1376 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1377 // it or PGOUseInstrumentor. 1378 1379 if (Opts.TimePasses) { 1380 if (Opts.TimePassesPerRun) 1381 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1382 else 1383 GenerateArg(Args, OPT_ftime_report, SA); 1384 } 1385 1386 if (Opts.FunctionSections) 1387 GenerateArg(Args, OPT_ffunction_sections, SA); 1388 1389 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1390 GenerateArg(Args, OPT_flto, SA); 1391 1392 if (Opts.PrepareForThinLTO) 1393 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1394 1395 if (!Opts.ThinLTOIndexFile.empty()) 1396 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1397 1398 if (Opts.SaveTempsFilePrefix == OutputFile) 1399 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1400 1401 StringRef MemProfileBasename("memprof.profraw"); 1402 if (!Opts.MemoryProfileOutput.empty()) { 1403 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1404 GenerateArg(Args, OPT_fmemory_profile, SA); 1405 } else { 1406 size_t ArgLength = 1407 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1408 GenerateArg(Args, OPT_fmemory_profile_EQ, 1409 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1410 } 1411 } 1412 1413 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1414 GenerateArg(Args, OPT_coverage_version_EQ, Opts.CoverageVersion, SA); 1415 1416 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1417 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1418 // won't be generated.) 1419 1420 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1421 std::string InstrBundle = 1422 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1423 if (!InstrBundle.empty()) 1424 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1425 } 1426 1427 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1428 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1429 else if (Opts.CFProtectionReturn) 1430 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1431 else if (Opts.CFProtectionBranch) 1432 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1433 1434 for (const auto &F : Opts.LinkBitcodeFiles) { 1435 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1436 F.PropagateAttrs && F.Internalize; 1437 GenerateArg(Args, 1438 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1439 F.Filename, SA); 1440 } 1441 1442 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1443 // That would make it easy to generate the option only **once** if it was 1444 // explicitly set to non-default value. 1445 if (Opts.ExplicitEmulatedTLS) { 1446 GenerateArg( 1447 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1448 } 1449 1450 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) { 1451 std::string Buffer; 1452 llvm::raw_string_ostream OS(Buffer); 1453 Opts.FPDenormalMode.print(OS); 1454 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, OS.str(), SA); 1455 } 1456 1457 if (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE()) { 1458 std::string Buffer; 1459 llvm::raw_string_ostream OS(Buffer); 1460 Opts.FP32DenormalMode.print(OS); 1461 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, OS.str(), SA); 1462 } 1463 1464 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1465 OptSpecifier Opt = 1466 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1467 GenerateArg(Args, Opt, SA); 1468 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1469 OptSpecifier Opt = 1470 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1471 GenerateArg(Args, Opt, SA); 1472 } 1473 1474 if (Opts.IgnoreXCOFFVisibility) 1475 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 1476 1477 if (Opts.EnableAIXExtendedAltivecABI) 1478 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1479 1480 if (!Opts.OptRecordPasses.empty()) 1481 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1482 1483 if (!Opts.OptRecordFormat.empty()) 1484 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1485 1486 if (Opts.OptimizationRemarkPattern) 1487 GenerateArg(Args, OPT_Rpass_EQ, Opts.OptimizationRemarkPattern.Pattern, SA); 1488 1489 if (Opts.OptimizationRemarkMissedPattern) 1490 GenerateArg(Args, OPT_Rpass_missed_EQ, 1491 Opts.OptimizationRemarkMissedPattern.Pattern, SA); 1492 1493 if (Opts.OptimizationRemarkAnalysisPattern) 1494 GenerateArg(Args, OPT_Rpass_analysis_EQ, 1495 Opts.OptimizationRemarkAnalysisPattern.Pattern, SA); 1496 1497 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1498 Opts.DiagnosticsHotnessThreshold 1499 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1500 : "auto", 1501 SA); 1502 1503 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1504 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1505 1506 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1507 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1508 1509 if (!Opts.EmitVersionIdentMetadata) 1510 GenerateArg(Args, OPT_Qn, SA); 1511 1512 switch (Opts.FiniteLoops) { 1513 case CodeGenOptions::FiniteLoopsKind::Language: 1514 break; 1515 case CodeGenOptions::FiniteLoopsKind::Always: 1516 GenerateArg(Args, OPT_ffinite_loops, SA); 1517 break; 1518 case CodeGenOptions::FiniteLoopsKind::Never: 1519 GenerateArg(Args, OPT_fno_finite_loops, SA); 1520 break; 1521 } 1522 } 1523 1524 bool CompilerInvocation::ParseCodeGenArgsImpl(CodeGenOptions &Opts, 1525 ArgList &Args, InputKind IK, 1526 DiagnosticsEngine &Diags, 1527 const llvm::Triple &T, 1528 const std::string &OutputFile, 1529 const LangOptions &LangOptsRef) { 1530 unsigned NumErrorsBefore = Diags.getNumErrors(); 1531 1532 bool Success = true; 1533 1534 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1535 // TODO: This could be done in Driver 1536 unsigned MaxOptLevel = 3; 1537 if (OptimizationLevel > MaxOptLevel) { 1538 // If the optimization level is not supported, fall back on the default 1539 // optimization 1540 Diags.Report(diag::warn_drv_optimization_value) 1541 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1542 OptimizationLevel = MaxOptLevel; 1543 } 1544 Opts.OptimizationLevel = OptimizationLevel; 1545 1546 // The key paths of codegen options defined in Options.td start with 1547 // "CodeGenOpts.". Let's provide the expected variable name and type. 1548 CodeGenOptions &CodeGenOpts = Opts; 1549 // Some codegen options depend on language options. Let's provide the expected 1550 // variable name and type. 1551 const LangOptions *LangOpts = &LangOptsRef; 1552 1553 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1554 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1555 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1556 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1557 MERGER, EXTRACTOR, TABLE_INDEX) \ 1558 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 1559 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1560 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 1561 MERGER, TABLE_INDEX) 1562 #include "clang/Driver/Options.inc" 1563 #undef CODEGEN_OPTION_WITH_MARSHALLING 1564 1565 // At O0 we want to fully disable inlining outside of cases marked with 1566 // 'alwaysinline' that are required for correctness. 1567 Opts.setInlining((Opts.OptimizationLevel == 0) 1568 ? CodeGenOptions::OnlyAlwaysInlining 1569 : CodeGenOptions::NormalInlining); 1570 // Explicit inlining flags can disable some or all inlining even at 1571 // optimization levels above zero. 1572 if (Arg *InlineArg = Args.getLastArg( 1573 options::OPT_finline_functions, options::OPT_finline_hint_functions, 1574 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 1575 if (Opts.OptimizationLevel > 0) { 1576 const Option &InlineOpt = InlineArg->getOption(); 1577 if (InlineOpt.matches(options::OPT_finline_functions)) 1578 Opts.setInlining(CodeGenOptions::NormalInlining); 1579 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 1580 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1581 else 1582 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1583 } 1584 } 1585 1586 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1587 // -fdirect-access-external-data. 1588 Opts.DirectAccessExternalData = 1589 Args.hasArg(OPT_fdirect_access_external_data) || 1590 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1591 LangOpts->PICLevel == 0); 1592 1593 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1594 unsigned Val = 1595 llvm::StringSwitch<unsigned>(A->getValue()) 1596 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1597 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1598 .Case("constructor", codegenoptions::DebugInfoConstructor) 1599 .Case("limited", codegenoptions::LimitedDebugInfo) 1600 .Case("standalone", codegenoptions::FullDebugInfo) 1601 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1602 .Default(~0U); 1603 if (Val == ~0U) 1604 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1605 << A->getValue(); 1606 else 1607 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1608 } 1609 1610 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1611 // constructor homing. 1612 if (Args.getLastArg(OPT_fuse_ctor_homing)) 1613 if (Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1614 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1615 1616 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1617 auto Split = StringRef(Arg).split('='); 1618 Opts.DebugPrefixMap.insert( 1619 {std::string(Split.first), std::string(Split.second)}); 1620 } 1621 1622 for (const auto &Arg : Args.getAllArgValues(OPT_fprofile_prefix_map_EQ)) { 1623 auto Split = StringRef(Arg).split('='); 1624 Opts.ProfilePrefixMap.insert( 1625 {std::string(Split.first), std::string(Split.second)}); 1626 } 1627 1628 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1629 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1630 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1631 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1632 1633 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1634 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1635 Opts.EmitCallSiteInfo = true; 1636 1637 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1638 Args.hasArg(OPT_new_struct_path_tbaa); 1639 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1640 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1641 if (Opts.SimplifyLibCalls) 1642 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1643 Opts.UnrollLoops = 1644 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1645 (Opts.OptimizationLevel > 1)); 1646 Opts.BinutilsVersion = 1647 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1648 1649 Opts.DebugNameTable = static_cast<unsigned>( 1650 Args.hasArg(OPT_ggnu_pubnames) 1651 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1652 : Args.hasArg(OPT_gpubnames) 1653 ? llvm::DICompileUnit::DebugNameTableKind::Default 1654 : llvm::DICompileUnit::DebugNameTableKind::None); 1655 1656 if (!Opts.ProfileInstrumentUsePath.empty()) 1657 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1658 1659 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1660 Opts.TimePasses = true; 1661 1662 // -ftime-report= is only for new pass manager. 1663 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1664 if (Opts.LegacyPassManager) 1665 Diags.Report(diag::err_drv_argument_only_allowed_with) 1666 << A->getAsString(Args) << "-fno-legacy-pass-manager"; 1667 1668 StringRef Val = A->getValue(); 1669 if (Val == "per-pass") 1670 Opts.TimePassesPerRun = false; 1671 else if (Val == "per-pass-run") 1672 Opts.TimePassesPerRun = true; 1673 else 1674 Diags.Report(diag::err_drv_invalid_value) 1675 << A->getAsString(Args) << A->getValue(); 1676 } 1677 } 1678 1679 // Basic Block Sections implies Function Sections. 1680 Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections); 1681 1682 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 1683 Opts.PrepareForThinLTO = false; 1684 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1685 StringRef S = A->getValue(); 1686 if (S == "thin") 1687 Opts.PrepareForThinLTO = true; 1688 else if (S != "full") 1689 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1690 } 1691 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1692 if (IK.getLanguage() != Language::LLVM_IR) 1693 Diags.Report(diag::err_drv_argument_only_allowed_with) 1694 << A->getAsString(Args) << "-x ir"; 1695 Opts.ThinLTOIndexFile = 1696 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1697 } 1698 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1699 Opts.SaveTempsFilePrefix = 1700 llvm::StringSwitch<std::string>(A->getValue()) 1701 .Case("obj", OutputFile) 1702 .Default(llvm::sys::path::filename(OutputFile).str()); 1703 1704 // The memory profile runtime appends the pid to make this name more unique. 1705 const char *MemProfileBasename = "memprof.profraw"; 1706 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1707 SmallString<128> Path( 1708 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1709 llvm::sys::path::append(Path, MemProfileBasename); 1710 Opts.MemoryProfileOutput = std::string(Path); 1711 } else if (Args.hasArg(OPT_fmemory_profile)) 1712 Opts.MemoryProfileOutput = MemProfileBasename; 1713 1714 memcpy(Opts.CoverageVersion, "408*", 4); 1715 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1716 if (Args.hasArg(OPT_coverage_version_EQ)) { 1717 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1718 if (CoverageVersion.size() != 4) { 1719 Diags.Report(diag::err_drv_invalid_value) 1720 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1721 << CoverageVersion; 1722 } else { 1723 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1724 } 1725 } 1726 } 1727 // FIXME: For backend options that are not yet recorded as function 1728 // attributes in the IR, keep track of them so we can embed them in a 1729 // separate data section and use them when building the bitcode. 1730 for (const auto &A : Args) { 1731 // Do not encode output and input. 1732 if (A->getOption().getID() == options::OPT_o || 1733 A->getOption().getID() == options::OPT_INPUT || 1734 A->getOption().getID() == options::OPT_x || 1735 A->getOption().getID() == options::OPT_fembed_bitcode || 1736 A->getOption().matches(options::OPT_W_Group)) 1737 continue; 1738 ArgStringList ASL; 1739 A->render(Args, ASL); 1740 for (const auto &arg : ASL) { 1741 StringRef ArgStr(arg); 1742 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1743 // using \00 to separate each commandline options. 1744 Opts.CmdArgs.push_back('\0'); 1745 } 1746 } 1747 1748 auto XRayInstrBundles = 1749 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1750 if (XRayInstrBundles.empty()) 1751 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1752 else 1753 for (const auto &A : XRayInstrBundles) 1754 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1755 Diags, Opts.XRayInstrumentationBundle); 1756 1757 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1758 StringRef Name = A->getValue(); 1759 if (Name == "full") { 1760 Opts.CFProtectionReturn = 1; 1761 Opts.CFProtectionBranch = 1; 1762 } else if (Name == "return") 1763 Opts.CFProtectionReturn = 1; 1764 else if (Name == "branch") 1765 Opts.CFProtectionBranch = 1; 1766 else if (Name != "none") { 1767 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1768 Success = false; 1769 } 1770 } 1771 1772 for (auto *A : 1773 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1774 CodeGenOptions::BitcodeFileToLink F; 1775 F.Filename = A->getValue(); 1776 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1777 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1778 // When linking CUDA bitcode, propagate function attributes so that 1779 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1780 F.PropagateAttrs = true; 1781 F.Internalize = true; 1782 } 1783 Opts.LinkBitcodeFiles.push_back(F); 1784 } 1785 1786 if (Args.getLastArg(OPT_femulated_tls) || 1787 Args.getLastArg(OPT_fno_emulated_tls)) { 1788 Opts.ExplicitEmulatedTLS = true; 1789 } 1790 1791 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1792 StringRef Val = A->getValue(); 1793 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1794 if (!Opts.FPDenormalMode.isValid()) 1795 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1796 } 1797 1798 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1799 StringRef Val = A->getValue(); 1800 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1801 if (!Opts.FP32DenormalMode.isValid()) 1802 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1803 } 1804 1805 // X86_32 has -fppc-struct-return and -freg-struct-return. 1806 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1807 if (Arg *A = 1808 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1809 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1810 // TODO: We might want to consider enabling these options on AIX in the 1811 // future. 1812 if (T.isOSAIX()) 1813 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1814 << A->getSpelling() << T.str(); 1815 1816 const Option &O = A->getOption(); 1817 if (O.matches(OPT_fpcc_struct_return) || 1818 O.matches(OPT_maix_struct_return)) { 1819 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1820 } else { 1821 assert(O.matches(OPT_freg_struct_return) || 1822 O.matches(OPT_msvr4_struct_return)); 1823 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1824 } 1825 } 1826 1827 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 1828 !Args.hasArg(OPT_fvisibility))) 1829 Opts.IgnoreXCOFFVisibility = 1; 1830 1831 if (Arg *A = 1832 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1833 if (!T.isOSAIX()) 1834 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1835 << A->getSpelling() << T.str(); 1836 1837 const Option &O = A->getOption(); 1838 if (O.matches(OPT_mabi_EQ_vec_default)) 1839 Diags.Report(diag::err_aix_default_altivec_abi) 1840 << A->getSpelling() << T.str(); 1841 else { 1842 assert(O.matches(OPT_mabi_EQ_vec_extabi)); 1843 Opts.EnableAIXExtendedAltivecABI = 1; 1844 } 1845 } 1846 1847 bool NeedLocTracking = false; 1848 1849 if (!Opts.OptRecordFile.empty()) 1850 NeedLocTracking = true; 1851 1852 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1853 Opts.OptRecordPasses = A->getValue(); 1854 NeedLocTracking = true; 1855 } 1856 1857 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1858 Opts.OptRecordFormat = A->getValue(); 1859 NeedLocTracking = true; 1860 } 1861 1862 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 1863 Opts.OptimizationRemarkPattern = 1864 GenerateOptimizationRemarkRegex(Diags, Args, A); 1865 NeedLocTracking = true; 1866 } 1867 1868 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 1869 Opts.OptimizationRemarkMissedPattern = 1870 GenerateOptimizationRemarkRegex(Diags, Args, A); 1871 NeedLocTracking = true; 1872 } 1873 1874 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 1875 Opts.OptimizationRemarkAnalysisPattern = 1876 GenerateOptimizationRemarkRegex(Diags, Args, A); 1877 NeedLocTracking = true; 1878 } 1879 1880 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1881 bool UsingProfile = UsingSampleProfile || 1882 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1883 1884 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1885 // An IR file will contain PGO as metadata 1886 IK.getLanguage() != Language::LLVM_IR) 1887 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1888 << "-fdiagnostics-show-hotness"; 1889 1890 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1891 if (auto *arg = 1892 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1893 auto ResultOrErr = 1894 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1895 1896 if (!ResultOrErr) { 1897 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1898 << "-fdiagnostics-hotness-threshold="; 1899 } else { 1900 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1901 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1902 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1903 !UsingProfile) 1904 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1905 << "-fdiagnostics-hotness-threshold="; 1906 } 1907 } 1908 1909 // If the user requested to use a sample profile for PGO, then the 1910 // backend will need to track source location information so the profile 1911 // can be incorporated into the IR. 1912 if (UsingSampleProfile) 1913 NeedLocTracking = true; 1914 1915 // If the user requested a flag that requires source locations available in 1916 // the backend, make sure that the backend tracks source location information. 1917 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1918 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1919 1920 // Parse -fsanitize-recover= arguments. 1921 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1922 parseSanitizerKinds("-fsanitize-recover=", 1923 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1924 Opts.SanitizeRecover); 1925 parseSanitizerKinds("-fsanitize-trap=", 1926 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1927 Opts.SanitizeTrap); 1928 1929 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1930 1931 if (Args.hasArg(options::OPT_ffinite_loops)) 1932 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 1933 else if (Args.hasArg(options::OPT_fno_finite_loops)) 1934 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 1935 1936 return Success && Diags.getNumErrors() == NumErrorsBefore; 1937 } 1938 1939 bool CompilerInvocation::ParseCodeGenArgs( 1940 CompilerInvocation &Res, CodeGenOptions &Opts, ArgList &Args, InputKind IK, 1941 DiagnosticsEngine &Diags, const llvm::Triple &T, 1942 const std::string &OutputFile, const LangOptions &LangOptsRef) { 1943 CodeGenOptions DummyOpts; 1944 1945 return RoundTrip( 1946 [&](CompilerInvocation &Res, ArgList &Args, DiagnosticsEngine &Diags) { 1947 Args.getLastArg(OPT_O0, OPT_O4, OPT_O, OPT_Ofast); 1948 return ParseCodeGenArgsImpl(Res.getCodeGenOpts(), Args, IK, Diags, T, 1949 OutputFile, LangOptsRef); 1950 }, 1951 [&](CompilerInvocation &Res, SmallVectorImpl<const char *> &GeneratedArgs, 1952 StringAllocator SA) { 1953 GenerateCodeGenArgs(Res.getCodeGenOpts(), GeneratedArgs, SA, T, 1954 OutputFile, &LangOptsRef); 1955 }, 1956 [&DummyOpts](CompilerInvocation &Res) { 1957 std::swap(Res.CodeGenOpts, DummyOpts); 1958 }, 1959 Res, Args, Diags, "CodeGenOptions"); 1960 } 1961 1962 static void 1963 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 1964 SmallVectorImpl<const char *> &Args, 1965 CompilerInvocation::StringAllocator SA) { 1966 const DependencyOutputOptions &DependencyOutputOpts = Opts; 1967 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1968 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1969 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1970 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1971 MERGER, EXTRACTOR, TABLE_INDEX) \ 1972 GENERATE_OPTION_WITH_MARSHALLING( \ 1973 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1974 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1975 #include "clang/Driver/Options.inc" 1976 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 1977 1978 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 1979 GenerateArg(Args, OPT_show_includes, SA); 1980 1981 for (const auto &Dep : Opts.ExtraDeps) { 1982 switch (Dep.second) { 1983 case EDK_SanitizeBlacklist: 1984 // Sanitizer blacklist arguments are generated from LanguageOptions. 1985 continue; 1986 case EDK_ModuleFile: 1987 // Module file arguments are generated from FrontendOptions and 1988 // HeaderSearchOptions. 1989 continue; 1990 case EDK_ProfileList: 1991 GenerateArg(Args, OPT_fprofile_list_EQ, Dep.first, SA); 1992 break; 1993 case EDK_DepFileEntry: 1994 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 1995 break; 1996 } 1997 } 1998 } 1999 2000 static bool ParseDependencyOutputArgsImpl( 2001 DependencyOutputOptions &Opts, ArgList &Args, 2002 DiagnosticsEngine &Diags, 2003 frontend::ActionKind Action, bool ShowLineMarkers) { 2004 unsigned NumErrorsBefore = Diags.getNumErrors(); 2005 bool Success = true; 2006 2007 DependencyOutputOptions &DependencyOutputOpts = Opts; 2008 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2009 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2010 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2011 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2012 MERGER, EXTRACTOR, TABLE_INDEX) \ 2013 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2014 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2015 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2016 MERGER, TABLE_INDEX) 2017 #include "clang/Driver/Options.inc" 2018 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2019 2020 if (Args.hasArg(OPT_show_includes)) { 2021 // Writing both /showIncludes and preprocessor output to stdout 2022 // would produce interleaved output, so use stderr for /showIncludes. 2023 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2024 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2025 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2026 else 2027 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2028 } else { 2029 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2030 } 2031 2032 // Add sanitizer blacklists as extra dependencies. 2033 // They won't be discovered by the regular preprocessor, so 2034 // we let make / ninja to know about this implicit dependency. 2035 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 2036 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 2037 StringRef Val = A->getValue(); 2038 if (Val.find('=') == StringRef::npos) 2039 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeBlacklist); 2040 } 2041 if (Opts.IncludeSystemHeaders) { 2042 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 2043 StringRef Val = A->getValue(); 2044 if (Val.find('=') == StringRef::npos) 2045 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeBlacklist); 2046 } 2047 } 2048 } 2049 2050 // -fprofile-list= dependencies. 2051 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2052 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2053 2054 // Propagate the extra dependencies. 2055 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2056 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2057 2058 // Only the -fmodule-file=<file> form. 2059 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2060 StringRef Val = A->getValue(); 2061 if (Val.find('=') == StringRef::npos) 2062 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2063 } 2064 2065 return Success && Diags.getNumErrors() == NumErrorsBefore; 2066 } 2067 2068 static bool ParseDependencyOutputArgs(CompilerInvocation &Res, 2069 DependencyOutputOptions &Opts, 2070 ArgList &Args, DiagnosticsEngine &Diags, 2071 frontend::ActionKind Action, 2072 bool ShowLineMarkers) { 2073 DependencyOutputOptions DummyOpts; 2074 2075 return RoundTrip( 2076 [Action, ShowLineMarkers](CompilerInvocation &Res, ArgList &Args, 2077 DiagnosticsEngine &Diags) { 2078 return ParseDependencyOutputArgsImpl(Res.getDependencyOutputOpts(), 2079 Args, Diags, Action, 2080 ShowLineMarkers); 2081 }, 2082 [&Args](CompilerInvocation &Res, 2083 SmallVectorImpl<const char *> &GeneratedArgs, 2084 CompilerInvocation::StringAllocator SA) { 2085 GenerateDependencyOutputArgs(Res.getDependencyOutputOpts(), 2086 GeneratedArgs, SA); 2087 // We're querying sanitizer blacklist and module file arguments, but 2088 // they are generated from LanguageOptions and HeaderSearchOptions. 2089 // Let's satisfy RoundTrip by generating them ourselves for now. 2090 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 2091 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 2092 StringRef Val = A->getValue(); 2093 if (Val.find('=') == StringRef::npos) 2094 GenerateArg(GeneratedArgs, OPT_fsanitize_blacklist, Val, SA); 2095 } 2096 if (Res.getDependencyOutputOpts().IncludeSystemHeaders) { 2097 for (const auto *A : 2098 Args.filtered(OPT_fsanitize_system_blacklist)) { 2099 StringRef Val = A->getValue(); 2100 if (Val.find('=') == StringRef::npos) 2101 GenerateArg(GeneratedArgs, OPT_fsanitize_system_blacklist, Val, 2102 SA); 2103 } 2104 } 2105 } 2106 2107 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2108 StringRef Val = A->getValue(); 2109 if (Val.find('=') == StringRef::npos) 2110 GenerateArg(GeneratedArgs, OPT_fmodule_file, Val, SA); 2111 } 2112 }, 2113 [&DummyOpts](CompilerInvocation &Res) { 2114 std::swap(Res.getDependencyOutputOpts(), DummyOpts); 2115 }, 2116 Res, Args, Diags, "DependencyOutputOptions"); 2117 } 2118 2119 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2120 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2121 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2122 // Support both clang's -f[no-]color-diagnostics and gcc's 2123 // -f[no-]diagnostics-colors[=never|always|auto]. 2124 enum { 2125 Colors_On, 2126 Colors_Off, 2127 Colors_Auto 2128 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2129 for (auto *A : Args) { 2130 const Option &O = A->getOption(); 2131 if (O.matches(options::OPT_fcolor_diagnostics) || 2132 O.matches(options::OPT_fdiagnostics_color)) { 2133 ShowColors = Colors_On; 2134 } else if (O.matches(options::OPT_fno_color_diagnostics) || 2135 O.matches(options::OPT_fno_diagnostics_color)) { 2136 ShowColors = Colors_Off; 2137 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2138 StringRef Value(A->getValue()); 2139 if (Value == "always") 2140 ShowColors = Colors_On; 2141 else if (Value == "never") 2142 ShowColors = Colors_Off; 2143 else if (Value == "auto") 2144 ShowColors = Colors_Auto; 2145 } 2146 } 2147 return ShowColors == Colors_On || 2148 (ShowColors == Colors_Auto && 2149 llvm::sys::Process::StandardErrHasColors()); 2150 } 2151 2152 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2153 DiagnosticsEngine &Diags) { 2154 bool Success = true; 2155 for (const auto &Prefix : VerifyPrefixes) { 2156 // Every prefix must start with a letter and contain only alphanumeric 2157 // characters, hyphens, and underscores. 2158 auto BadChar = llvm::find_if(Prefix, [](char C) { 2159 return !isAlphanumeric(C) && C != '-' && C != '_'; 2160 }); 2161 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2162 Success = false; 2163 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2164 Diags.Report(diag::note_drv_verify_prefix_spelling); 2165 } 2166 } 2167 return Success; 2168 } 2169 2170 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2171 SmallVectorImpl<const char *> &Args, 2172 CompilerInvocation::StringAllocator SA) { 2173 const FileSystemOptions &FileSystemOpts = Opts; 2174 2175 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2176 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2177 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2178 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2179 MERGER, EXTRACTOR, TABLE_INDEX) \ 2180 GENERATE_OPTION_WITH_MARSHALLING( \ 2181 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2182 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2183 #include "clang/Driver/Options.inc" 2184 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2185 } 2186 2187 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2188 DiagnosticsEngine &Diags) { 2189 FileSystemOptions &FileSystemOpts = Opts; 2190 bool Success = true; 2191 2192 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2193 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2194 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2195 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2196 MERGER, EXTRACTOR, TABLE_INDEX) \ 2197 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2198 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2199 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2200 MERGER, TABLE_INDEX) 2201 #include "clang/Driver/Options.inc" 2202 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2203 2204 return Success; 2205 } 2206 2207 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2208 SmallVectorImpl<const char *> &Args, 2209 CompilerInvocation::StringAllocator SA) { 2210 const MigratorOptions &MigratorOpts = Opts; 2211 2212 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2213 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2214 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2215 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2216 MERGER, EXTRACTOR, TABLE_INDEX) \ 2217 GENERATE_OPTION_WITH_MARSHALLING( \ 2218 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2219 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2220 #include "clang/Driver/Options.inc" 2221 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2222 } 2223 2224 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2225 DiagnosticsEngine &Diags) { 2226 MigratorOptions &MigratorOpts = Opts; 2227 bool Success = true; 2228 2229 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2230 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2231 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2232 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2233 MERGER, EXTRACTOR, TABLE_INDEX) \ 2234 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2235 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2236 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2237 MERGER, TABLE_INDEX) 2238 #include "clang/Driver/Options.inc" 2239 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2240 2241 return Success; 2242 } 2243 2244 void CompilerInvocation::GenerateDiagnosticArgs( 2245 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2246 StringAllocator SA, bool DefaultDiagColor) { 2247 const DiagnosticOptions *DiagnosticOpts = &Opts; 2248 #define DIAG_OPTION_WITH_MARSHALLING( \ 2249 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2250 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2251 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2252 MERGER, EXTRACTOR, TABLE_INDEX) \ 2253 GENERATE_OPTION_WITH_MARSHALLING( \ 2254 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2255 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2256 #include "clang/Driver/Options.inc" 2257 #undef DIAG_OPTION_WITH_MARSHALLING 2258 2259 if (!Opts.DiagnosticSerializationFile.empty()) 2260 GenerateArg(Args, OPT_diagnostic_serialized_file, 2261 Opts.DiagnosticSerializationFile, SA); 2262 2263 if (Opts.ShowColors) 2264 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2265 2266 if (Opts.VerifyDiagnostics && 2267 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2268 GenerateArg(Args, OPT_verify, SA); 2269 2270 for (const auto &Prefix : Opts.VerifyPrefixes) 2271 if (Prefix != "expected") 2272 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2273 2274 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2275 if (VIU == DiagnosticLevelMask::None) { 2276 // This is the default, don't generate anything. 2277 } else if (VIU == DiagnosticLevelMask::All) { 2278 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2279 } else { 2280 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2281 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2282 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2283 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2284 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2285 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2286 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2287 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2288 } 2289 2290 for (const auto &Warning : Opts.Warnings) { 2291 // This option is automatically generated from UndefPrefixes. 2292 if (Warning == "undef-prefix") 2293 continue; 2294 Args.push_back(SA(StringRef("-W") + Warning)); 2295 } 2296 2297 for (const auto &Remark : Opts.Remarks) 2298 Args.push_back(SA(StringRef("-R") + Remark)); 2299 } 2300 2301 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2302 DiagnosticsEngine *Diags, 2303 bool DefaultDiagColor) { 2304 Optional<DiagnosticsEngine> IgnoringDiags; 2305 if (!Diags) { 2306 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2307 new IgnoringDiagConsumer()); 2308 Diags = &*IgnoringDiags; 2309 } 2310 2311 // The key paths of diagnostic options defined in Options.td start with 2312 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2313 DiagnosticOptions *DiagnosticOpts = &Opts; 2314 bool Success = true; 2315 2316 #define DIAG_OPTION_WITH_MARSHALLING( \ 2317 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2318 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2319 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2320 MERGER, EXTRACTOR, TABLE_INDEX) \ 2321 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, Success, ID, FLAGS, PARAM, \ 2322 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2323 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2324 MERGER, TABLE_INDEX) 2325 #include "clang/Driver/Options.inc" 2326 #undef DIAG_OPTION_WITH_MARSHALLING 2327 2328 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2329 2330 if (Arg *A = 2331 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2332 Opts.DiagnosticSerializationFile = A->getValue(); 2333 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2334 2335 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2336 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2337 if (Args.hasArg(OPT_verify)) 2338 Opts.VerifyPrefixes.push_back("expected"); 2339 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2340 // then sort it to prepare for fast lookup using std::binary_search. 2341 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) { 2342 Opts.VerifyDiagnostics = false; 2343 Success = false; 2344 } 2345 else 2346 llvm::sort(Opts.VerifyPrefixes); 2347 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2348 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 2349 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 2350 *Diags, DiagMask); 2351 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2352 DiagMask = DiagnosticLevelMask::All; 2353 Opts.setVerifyIgnoreUnexpected(DiagMask); 2354 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2355 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2356 Diags->Report(diag::warn_ignoring_ftabstop_value) 2357 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2358 } 2359 2360 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2361 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2362 2363 return Success; 2364 } 2365 2366 bool CompilerInvocation::ParseDiagnosticArgsRoundTrip(CompilerInvocation &Res, 2367 DiagnosticOptions &Opts, 2368 ArgList &Args, 2369 DiagnosticsEngine *Diags, 2370 bool DefaultDiagColor) { 2371 IntrusiveRefCntPtr<DiagnosticOptions> DummyOpts(new DiagnosticOptions); 2372 2373 return RoundTrip( 2374 [DefaultDiagColor](CompilerInvocation &Res, ArgList &Args, 2375 DiagnosticsEngine &Diags) { 2376 // Query the options might not get queried properly during parsing, but 2377 // should be generated from DiagnosticOptions. 2378 2379 Args.getLastArg(OPT_fcolor_diagnostics); 2380 Args.getLastArg(OPT_fno_color_diagnostics); 2381 Args.getLastArg(OPT_fdiagnostics_color); 2382 Args.getLastArg(OPT_fno_diagnostics_color); 2383 Args.getLastArg(OPT_fdiagnostics_color_EQ); 2384 2385 for (auto *A : Args.filtered(OPT_W_Group)) 2386 Args.getLastArg(A->getOption().getID()); 2387 for (auto *A : Args.filtered(OPT_R_Group)) 2388 Args.getLastArg(A->getOption().getID()); 2389 2390 return clang::ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2391 DefaultDiagColor); 2392 }, 2393 [DefaultDiagColor](CompilerInvocation &Res, 2394 SmallVectorImpl<const char *> &Args, 2395 CompilerInvocation::StringAllocator SA) { 2396 GenerateDiagnosticArgs(Res.getDiagnosticOpts(), Args, SA, 2397 DefaultDiagColor); 2398 }, 2399 [&DummyOpts](CompilerInvocation &Res) { 2400 Res.DiagnosticOpts.swap(DummyOpts); 2401 }, 2402 Res, Args, *Diags, "DiagnosticOptions"); 2403 } 2404 2405 /// Parse the argument to the -ftest-module-file-extension 2406 /// command-line argument. 2407 /// 2408 /// \returns true on error, false on success. 2409 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2410 std::string &BlockName, 2411 unsigned &MajorVersion, 2412 unsigned &MinorVersion, 2413 bool &Hashed, 2414 std::string &UserInfo) { 2415 SmallVector<StringRef, 5> Args; 2416 Arg.split(Args, ':', 5); 2417 if (Args.size() < 5) 2418 return true; 2419 2420 BlockName = std::string(Args[0]); 2421 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2422 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2423 if (Args[3].getAsInteger(2, Hashed)) return true; 2424 if (Args.size() > 4) 2425 UserInfo = std::string(Args[4]); 2426 return false; 2427 } 2428 2429 /// Return a table that associates command line option specifiers with the 2430 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2431 /// intentionally missing, as this case is handled separately from other 2432 /// frontend options. 2433 static const auto &getFrontendActionTable() { 2434 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2435 {frontend::ASTDeclList, OPT_ast_list}, 2436 2437 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2438 {frontend::ASTDump, OPT_ast_dump_all}, 2439 {frontend::ASTDump, OPT_ast_dump_EQ}, 2440 {frontend::ASTDump, OPT_ast_dump}, 2441 {frontend::ASTDump, OPT_ast_dump_lookups}, 2442 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2443 2444 {frontend::ASTPrint, OPT_ast_print}, 2445 {frontend::ASTView, OPT_ast_view}, 2446 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2447 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2448 {frontend::DumpTokens, OPT_dump_tokens}, 2449 {frontend::EmitAssembly, OPT_S}, 2450 {frontend::EmitBC, OPT_emit_llvm_bc}, 2451 {frontend::EmitHTML, OPT_emit_html}, 2452 {frontend::EmitLLVM, OPT_emit_llvm}, 2453 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2454 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2455 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2456 {frontend::EmitObj, OPT_emit_obj}, 2457 2458 {frontend::FixIt, OPT_fixit_EQ}, 2459 {frontend::FixIt, OPT_fixit}, 2460 2461 {frontend::GenerateModule, OPT_emit_module}, 2462 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2463 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2464 {frontend::GeneratePCH, OPT_emit_pch}, 2465 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2466 {frontend::InitOnly, OPT_init_only}, 2467 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2468 {frontend::ModuleFileInfo, OPT_module_file_info}, 2469 {frontend::VerifyPCH, OPT_verify_pch}, 2470 {frontend::PrintPreamble, OPT_print_preamble}, 2471 {frontend::PrintPreprocessedInput, OPT_E}, 2472 {frontend::TemplightDump, OPT_templight_dump}, 2473 {frontend::RewriteMacros, OPT_rewrite_macros}, 2474 {frontend::RewriteObjC, OPT_rewrite_objc}, 2475 {frontend::RewriteTest, OPT_rewrite_test}, 2476 {frontend::RunAnalysis, OPT_analyze}, 2477 {frontend::MigrateSource, OPT_migrate}, 2478 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2479 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2480 OPT_print_dependency_directives_minimized_source}, 2481 }; 2482 2483 return Table; 2484 } 2485 2486 /// Maps command line option to frontend action. 2487 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2488 for (const auto &ActionOpt : getFrontendActionTable()) 2489 if (ActionOpt.second == Opt.getID()) 2490 return ActionOpt.first; 2491 2492 return None; 2493 } 2494 2495 /// Maps frontend action to command line option. 2496 static Optional<OptSpecifier> 2497 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2498 for (const auto &ActionOpt : getFrontendActionTable()) 2499 if (ActionOpt.first == ProgramAction) 2500 return OptSpecifier(ActionOpt.second); 2501 2502 return None; 2503 } 2504 2505 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2506 SmallVectorImpl<const char *> &Args, 2507 CompilerInvocation::StringAllocator SA, 2508 bool IsHeader) { 2509 const FrontendOptions &FrontendOpts = Opts; 2510 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2511 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2512 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2513 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2514 MERGER, EXTRACTOR, TABLE_INDEX) \ 2515 GENERATE_OPTION_WITH_MARSHALLING( \ 2516 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2517 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2518 #include "clang/Driver/Options.inc" 2519 #undef FRONTEND_OPTION_WITH_MARSHALLING 2520 2521 Optional<OptSpecifier> ProgramActionOpt = 2522 getProgramActionOpt(Opts.ProgramAction); 2523 2524 // Generating a simple flag covers most frontend actions. 2525 std::function<void()> GenerateProgramAction = [&]() { 2526 GenerateArg(Args, *ProgramActionOpt, SA); 2527 }; 2528 2529 if (!ProgramActionOpt) { 2530 // PluginAction is the only program action handled separately. 2531 assert(Opts.ProgramAction == frontend::PluginAction && 2532 "Frontend action without option."); 2533 GenerateProgramAction = [&]() { 2534 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2535 }; 2536 } 2537 2538 // FIXME: Simplify the complex 'AST dump' command line. 2539 if (Opts.ProgramAction == frontend::ASTDump) { 2540 GenerateProgramAction = [&]() { 2541 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2542 // marshalling infrastructure. 2543 2544 if (Opts.ASTDumpFormat != ADOF_Default) { 2545 StringRef Format; 2546 switch (Opts.ASTDumpFormat) { 2547 case ADOF_Default: 2548 llvm_unreachable("Default AST dump format."); 2549 case ADOF_JSON: 2550 Format = "json"; 2551 break; 2552 } 2553 2554 if (Opts.ASTDumpAll) 2555 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2556 if (Opts.ASTDumpDecls) 2557 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2558 } else { 2559 if (Opts.ASTDumpAll) 2560 GenerateArg(Args, OPT_ast_dump_all, SA); 2561 if (Opts.ASTDumpDecls) 2562 GenerateArg(Args, OPT_ast_dump, SA); 2563 } 2564 }; 2565 } 2566 2567 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2568 GenerateProgramAction = [&]() { 2569 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2570 }; 2571 } 2572 2573 GenerateProgramAction(); 2574 2575 for (const auto &PluginArgs : Opts.PluginArgs) 2576 for (const auto &PluginArg : PluginArgs.second) 2577 GenerateArg(Args, OPT_plugin_arg, PluginArgs.first + PluginArg, SA); 2578 2579 for (const auto &Ext : Opts.ModuleFileExtensions) { 2580 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) { 2581 std::string Buffer; 2582 llvm::raw_string_ostream OS(Buffer); 2583 OS << *TestExt; 2584 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, OS.str(), SA); 2585 } 2586 } 2587 2588 if (!Opts.CodeCompletionAt.FileName.empty()) 2589 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2590 SA); 2591 2592 for (const auto &Plugin : Opts.Plugins) 2593 GenerateArg(Args, OPT_load, Plugin, SA); 2594 2595 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2596 2597 for (const auto &ModuleFile : Opts.ModuleFiles) 2598 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2599 2600 if (Opts.AuxTargetCPU.hasValue()) 2601 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2602 2603 if (Opts.AuxTargetFeatures.hasValue()) 2604 for (const auto &Feature : *Opts.AuxTargetFeatures) 2605 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2606 2607 { 2608 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2609 StringRef ModuleMap = 2610 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2611 StringRef Header = IsHeader ? "-header" : ""; 2612 2613 StringRef Lang; 2614 switch (Opts.DashX.getLanguage()) { 2615 case Language::C: 2616 Lang = "c"; 2617 break; 2618 case Language::OpenCL: 2619 Lang = "cl"; 2620 break; 2621 case Language::CUDA: 2622 Lang = "cuda"; 2623 break; 2624 case Language::HIP: 2625 Lang = "hip"; 2626 break; 2627 case Language::CXX: 2628 Lang = "c++"; 2629 break; 2630 case Language::ObjC: 2631 Lang = "objective-c"; 2632 break; 2633 case Language::ObjCXX: 2634 Lang = "objective-c++"; 2635 break; 2636 case Language::RenderScript: 2637 Lang = "renderscript"; 2638 break; 2639 case Language::Asm: 2640 Lang = "assembler-with-cpp"; 2641 break; 2642 case Language::Unknown: 2643 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2644 "Generating -x argument for unknown language (not precompiled)."); 2645 Lang = "ast"; 2646 break; 2647 case Language::LLVM_IR: 2648 Lang = "ir"; 2649 break; 2650 } 2651 2652 GenerateArg(Args, OPT_x, Lang + Header + ModuleMap + Preprocessed, SA); 2653 } 2654 2655 // OPT_INPUT has a unique class, generate it directly. 2656 for (const auto &Input : Opts.Inputs) 2657 Args.push_back(SA(Input.getFile())); 2658 } 2659 2660 static bool ParseFrontendArgsImpl(FrontendOptions &Opts, ArgList &Args, 2661 DiagnosticsEngine &Diags, 2662 bool &IsHeaderFile) { 2663 FrontendOptions &FrontendOpts = Opts; 2664 bool Success = true; 2665 unsigned NumErrorsBefore = Diags.getNumErrors(); 2666 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2667 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2668 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2669 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2670 MERGER, EXTRACTOR, TABLE_INDEX) \ 2671 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2672 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2673 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2674 MERGER, TABLE_INDEX) 2675 #include "clang/Driver/Options.inc" 2676 #undef FRONTEND_OPTION_WITH_MARSHALLING 2677 2678 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2679 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2680 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2681 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2682 assert(ProgramAction && "Option specifier not in Action_Group."); 2683 2684 if (ProgramAction == frontend::ASTDump && 2685 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2686 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2687 .CaseLower("default", ADOF_Default) 2688 .CaseLower("json", ADOF_JSON) 2689 .Default(std::numeric_limits<unsigned>::max()); 2690 2691 if (Val != std::numeric_limits<unsigned>::max()) 2692 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2693 else { 2694 Diags.Report(diag::err_drv_invalid_value) 2695 << A->getAsString(Args) << A->getValue(); 2696 Opts.ASTDumpFormat = ADOF_Default; 2697 } 2698 } 2699 2700 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2701 Opts.FixItSuffix = A->getValue(); 2702 2703 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2704 StringRef ArgStr = 2705 Args.hasArg(OPT_interface_stub_version_EQ) 2706 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2707 : "experimental-ifs-v2"; 2708 if (ArgStr == "experimental-yaml-elf-v1" || 2709 ArgStr == "experimental-ifs-v1" || 2710 ArgStr == "experimental-tapi-elf-v1") { 2711 std::string ErrorMessage = 2712 "Invalid interface stub format: " + ArgStr.str() + 2713 " is deprecated."; 2714 Diags.Report(diag::err_drv_invalid_value) 2715 << "Must specify a valid interface stub format type, ie: " 2716 "-interface-stub-version=experimental-ifs-v2" 2717 << ErrorMessage; 2718 ProgramAction = frontend::ParseSyntaxOnly; 2719 } else if (!ArgStr.startswith("experimental-ifs-")) { 2720 std::string ErrorMessage = 2721 "Invalid interface stub format: " + ArgStr.str() + "."; 2722 Diags.Report(diag::err_drv_invalid_value) 2723 << "Must specify a valid interface stub format type, ie: " 2724 "-interface-stub-version=experimental-ifs-v2" 2725 << ErrorMessage; 2726 ProgramAction = frontend::ParseSyntaxOnly; 2727 } 2728 } 2729 2730 Opts.ProgramAction = *ProgramAction; 2731 } 2732 2733 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2734 Opts.Plugins.emplace_back(A->getValue(0)); 2735 Opts.ProgramAction = frontend::PluginAction; 2736 Opts.ActionName = A->getValue(); 2737 } 2738 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2739 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2740 2741 for (const std::string &Arg : 2742 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2743 std::string BlockName; 2744 unsigned MajorVersion; 2745 unsigned MinorVersion; 2746 bool Hashed; 2747 std::string UserInfo; 2748 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2749 MinorVersion, Hashed, UserInfo)) { 2750 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2751 2752 continue; 2753 } 2754 2755 // Add the testing module file extension. 2756 Opts.ModuleFileExtensions.push_back( 2757 std::make_shared<TestModuleFileExtension>( 2758 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2759 } 2760 2761 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2762 Opts.CodeCompletionAt = 2763 ParsedSourceLocation::FromString(A->getValue()); 2764 if (Opts.CodeCompletionAt.FileName.empty()) 2765 Diags.Report(diag::err_drv_invalid_value) 2766 << A->getAsString(Args) << A->getValue(); 2767 } 2768 2769 Opts.Plugins = Args.getAllArgValues(OPT_load); 2770 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2771 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2772 // Only the -fmodule-file=<file> form. 2773 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2774 StringRef Val = A->getValue(); 2775 if (Val.find('=') == StringRef::npos) 2776 Opts.ModuleFiles.push_back(std::string(Val)); 2777 } 2778 2779 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2780 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2781 << "-emit-module"; 2782 2783 if (Args.hasArg(OPT_aux_target_cpu)) 2784 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2785 if (Args.hasArg(OPT_aux_target_feature)) 2786 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2787 2788 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2789 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2790 Diags.Report(diag::err_drv_argument_not_allowed_with) 2791 << "ARC migration" << "ObjC migration"; 2792 } 2793 2794 InputKind DashX(Language::Unknown); 2795 if (const Arg *A = Args.getLastArg(OPT_x)) { 2796 StringRef XValue = A->getValue(); 2797 2798 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2799 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2800 bool Preprocessed = XValue.consume_back("-cpp-output"); 2801 bool ModuleMap = XValue.consume_back("-module-map"); 2802 IsHeaderFile = !Preprocessed && !ModuleMap && 2803 XValue != "precompiled-header" && 2804 XValue.consume_back("-header"); 2805 2806 // Principal languages. 2807 DashX = llvm::StringSwitch<InputKind>(XValue) 2808 .Case("c", Language::C) 2809 .Case("cl", Language::OpenCL) 2810 .Case("cuda", Language::CUDA) 2811 .Case("hip", Language::HIP) 2812 .Case("c++", Language::CXX) 2813 .Case("objective-c", Language::ObjC) 2814 .Case("objective-c++", Language::ObjCXX) 2815 .Case("renderscript", Language::RenderScript) 2816 .Default(Language::Unknown); 2817 2818 // "objc[++]-cpp-output" is an acceptable synonym for 2819 // "objective-c[++]-cpp-output". 2820 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2821 DashX = llvm::StringSwitch<InputKind>(XValue) 2822 .Case("objc", Language::ObjC) 2823 .Case("objc++", Language::ObjCXX) 2824 .Default(Language::Unknown); 2825 2826 // Some special cases cannot be combined with suffixes. 2827 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2828 DashX = llvm::StringSwitch<InputKind>(XValue) 2829 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2830 .Case("assembler-with-cpp", Language::Asm) 2831 .Cases("ast", "pcm", "precompiled-header", 2832 InputKind(Language::Unknown, InputKind::Precompiled)) 2833 .Case("ir", Language::LLVM_IR) 2834 .Default(Language::Unknown); 2835 2836 if (DashX.isUnknown()) 2837 Diags.Report(diag::err_drv_invalid_value) 2838 << A->getAsString(Args) << A->getValue(); 2839 2840 if (Preprocessed) 2841 DashX = DashX.getPreprocessed(); 2842 if (ModuleMap) 2843 DashX = DashX.withFormat(InputKind::ModuleMap); 2844 } 2845 2846 // '-' is the default input if none is given. 2847 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2848 Opts.Inputs.clear(); 2849 if (Inputs.empty()) 2850 Inputs.push_back("-"); 2851 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2852 InputKind IK = DashX; 2853 if (IK.isUnknown()) { 2854 IK = FrontendOptions::getInputKindForExtension( 2855 StringRef(Inputs[i]).rsplit('.').second); 2856 // FIXME: Warn on this? 2857 if (IK.isUnknown()) 2858 IK = Language::C; 2859 // FIXME: Remove this hack. 2860 if (i == 0) 2861 DashX = IK; 2862 } 2863 2864 bool IsSystem = false; 2865 2866 // The -emit-module action implicitly takes a module map. 2867 if (Opts.ProgramAction == frontend::GenerateModule && 2868 IK.getFormat() == InputKind::Source) { 2869 IK = IK.withFormat(InputKind::ModuleMap); 2870 IsSystem = Opts.IsSystemModule; 2871 } 2872 2873 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2874 } 2875 2876 Opts.DashX = DashX; 2877 2878 return Diags.getNumErrors() == NumErrorsBefore; 2879 } 2880 2881 static bool ParseFrontendArgs(CompilerInvocation &Res, FrontendOptions &Opts, 2882 ArgList &Args, DiagnosticsEngine &Diags, 2883 bool &IsHeaderFile) { 2884 FrontendOptions DummyOpts; 2885 2886 return RoundTrip( 2887 [&IsHeaderFile](CompilerInvocation &Res, ArgList &Args, 2888 DiagnosticsEngine &Diags) { 2889 // ParseFrontendArgsImpl handles frontend action without querying the 2890 // options. Let's do it now so RoundTrip considers us responsible for 2891 // generating it. 2892 for (const auto &Pair : getFrontendActionTable()) 2893 Args.hasArg(Pair.second); 2894 2895 return ParseFrontendArgsImpl(Res.getFrontendOpts(), Args, Diags, 2896 IsHeaderFile); 2897 }, 2898 [&IsHeaderFile](CompilerInvocation &Res, 2899 SmallVectorImpl<const char *> &Args, 2900 CompilerInvocation::StringAllocator SA) { 2901 GenerateFrontendArgs(Res.getFrontendOpts(), Args, SA, IsHeaderFile); 2902 }, 2903 [&DummyOpts](CompilerInvocation &Res) { 2904 std::swap(Res.getFrontendOpts(), DummyOpts); 2905 }, 2906 Res, Args, Diags, "FrontendOptions"); 2907 } 2908 2909 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2910 void *MainAddr) { 2911 std::string ClangExecutable = 2912 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2913 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2914 } 2915 2916 void CompilerInvocation::GenerateHeaderSearchArgs( 2917 HeaderSearchOptions &Opts, SmallVectorImpl<const char *> &Args, 2918 CompilerInvocation::StringAllocator SA) { 2919 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2920 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2921 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2922 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2923 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2924 MERGER, EXTRACTOR, TABLE_INDEX) \ 2925 GENERATE_OPTION_WITH_MARSHALLING( \ 2926 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2927 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2928 #include "clang/Driver/Options.inc" 2929 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2930 2931 if (Opts.UseLibcxx) 2932 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2933 2934 if (!Opts.ModuleCachePath.empty()) 2935 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2936 2937 for (const auto &File : Opts.PrebuiltModuleFiles) 2938 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2939 2940 for (const auto &Path : Opts.PrebuiltModulePaths) 2941 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2942 2943 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2944 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2945 2946 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2947 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2948 llvm::Optional<bool> IsFramework, 2949 llvm::Optional<bool> IgnoreSysRoot) { 2950 return llvm::find(Groups, Entry.Group) != Groups.end() && 2951 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2952 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2953 }; 2954 2955 auto It = Opts.UserEntries.begin(); 2956 auto End = Opts.UserEntries.end(); 2957 2958 // Add -I..., -F..., and -index-header-map options in order. 2959 for (; It < End && 2960 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2961 ++It) { 2962 OptSpecifier Opt = [It, Matches]() { 2963 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2964 return OPT_F; 2965 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2966 return OPT_I; 2967 if (Matches(*It, frontend::Angled, true, true)) 2968 return OPT_F; 2969 if (Matches(*It, frontend::Angled, false, true)) 2970 return OPT_I; 2971 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2972 }(); 2973 2974 if (It->Group == frontend::IndexHeaderMap) 2975 GenerateArg(Args, OPT_index_header_map, SA); 2976 GenerateArg(Args, Opt, It->Path, SA); 2977 }; 2978 2979 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2980 // have already been generated as "-I[xx]yy". If that's the case, their 2981 // position on command line was such that this has no semantic impact on 2982 // include paths. 2983 for (; It < End && 2984 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2985 ++It) { 2986 OptSpecifier Opt = 2987 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2988 GenerateArg(Args, Opt, It->Path, SA); 2989 } 2990 2991 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2992 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2993 // command line was such that this has no semantic impact on include paths. 2994 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2995 GenerateArg(Args, OPT_idirafter, It->Path, SA); 2996 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 2997 GenerateArg(Args, OPT_iquote, It->Path, SA); 2998 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 2999 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3000 It->Path, SA); 3001 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3002 GenerateArg(Args, OPT_iframework, It->Path, SA); 3003 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3004 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 3005 3006 // Add the paths for the various language specific isystem flags. 3007 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3008 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 3009 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3010 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 3011 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3012 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 3013 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3014 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 3015 3016 // Add the internal paths from a driver that detects standard include paths. 3017 // Note: Some paths that came from "-internal-isystem" arguments may have 3018 // already been generated as "-isystem". If that's the case, their position on 3019 // command line was such that this has no semantic impact on include paths. 3020 for (; It < End && 3021 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3022 ++It) { 3023 OptSpecifier Opt = It->Group == frontend::System 3024 ? OPT_internal_isystem 3025 : OPT_internal_externc_isystem; 3026 GenerateArg(Args, Opt, It->Path, SA); 3027 } 3028 3029 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3030 3031 // Add the path prefixes which are implicitly treated as being system headers. 3032 for (const auto &P : Opts.SystemHeaderPrefixes) { 3033 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3034 : OPT_no_system_header_prefix; 3035 GenerateArg(Args, Opt, P.Prefix, SA); 3036 } 3037 3038 for (const std::string &F : Opts.VFSOverlayFiles) 3039 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 3040 } 3041 3042 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3043 DiagnosticsEngine &Diags, 3044 const std::string &WorkingDir) { 3045 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3046 bool Success = true; 3047 3048 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3049 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3050 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3051 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3052 MERGER, EXTRACTOR, TABLE_INDEX) \ 3053 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 3054 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3055 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 3056 MERGER, TABLE_INDEX) 3057 #include "clang/Driver/Options.inc" 3058 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3059 3060 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3061 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3062 3063 // Canonicalize -fmodules-cache-path before storing it. 3064 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3065 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3066 if (WorkingDir.empty()) 3067 llvm::sys::fs::make_absolute(P); 3068 else 3069 llvm::sys::fs::make_absolute(WorkingDir, P); 3070 } 3071 llvm::sys::path::remove_dots(P); 3072 Opts.ModuleCachePath = std::string(P.str()); 3073 3074 // Only the -fmodule-file=<name>=<file> form. 3075 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3076 StringRef Val = A->getValue(); 3077 if (Val.find('=') != StringRef::npos){ 3078 auto Split = Val.split('='); 3079 Opts.PrebuiltModuleFiles.insert( 3080 {std::string(Split.first), std::string(Split.second)}); 3081 } 3082 } 3083 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3084 Opts.AddPrebuiltModulePath(A->getValue()); 3085 3086 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3087 StringRef MacroDef = A->getValue(); 3088 Opts.ModulesIgnoreMacros.insert( 3089 llvm::CachedHashString(MacroDef.split('=').first)); 3090 } 3091 3092 // Add -I..., -F..., and -index-header-map options in order. 3093 bool IsIndexHeaderMap = false; 3094 bool IsSysrootSpecified = 3095 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3096 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3097 if (A->getOption().matches(OPT_index_header_map)) { 3098 // -index-header-map applies to the next -I or -F. 3099 IsIndexHeaderMap = true; 3100 continue; 3101 } 3102 3103 frontend::IncludeDirGroup Group = 3104 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3105 3106 bool IsFramework = A->getOption().matches(OPT_F); 3107 std::string Path = A->getValue(); 3108 3109 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3110 SmallString<32> Buffer; 3111 llvm::sys::path::append(Buffer, Opts.Sysroot, 3112 llvm::StringRef(A->getValue()).substr(1)); 3113 Path = std::string(Buffer.str()); 3114 } 3115 3116 Opts.AddPath(Path, Group, IsFramework, 3117 /*IgnoreSysroot*/ true); 3118 IsIndexHeaderMap = false; 3119 } 3120 3121 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3122 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3123 for (const auto *A : 3124 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3125 if (A->getOption().matches(OPT_iprefix)) 3126 Prefix = A->getValue(); 3127 else if (A->getOption().matches(OPT_iwithprefix)) 3128 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3129 else 3130 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3131 } 3132 3133 for (const auto *A : Args.filtered(OPT_idirafter)) 3134 Opts.AddPath(A->getValue(), frontend::After, false, true); 3135 for (const auto *A : Args.filtered(OPT_iquote)) 3136 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3137 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3138 Opts.AddPath(A->getValue(), frontend::System, false, 3139 !A->getOption().matches(OPT_iwithsysroot)); 3140 for (const auto *A : Args.filtered(OPT_iframework)) 3141 Opts.AddPath(A->getValue(), frontend::System, true, true); 3142 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3143 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3144 /*IgnoreSysRoot=*/false); 3145 3146 // Add the paths for the various language specific isystem flags. 3147 for (const auto *A : Args.filtered(OPT_c_isystem)) 3148 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3149 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3150 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3151 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3152 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3153 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3154 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3155 3156 // Add the internal paths from a driver that detects standard include paths. 3157 for (const auto *A : 3158 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3159 frontend::IncludeDirGroup Group = frontend::System; 3160 if (A->getOption().matches(OPT_internal_externc_isystem)) 3161 Group = frontend::ExternCSystem; 3162 Opts.AddPath(A->getValue(), Group, false, true); 3163 } 3164 3165 // Add the path prefixes which are implicitly treated as being system headers. 3166 for (const auto *A : 3167 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3168 Opts.AddSystemHeaderPrefix( 3169 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3170 3171 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3172 Opts.AddVFSOverlayFile(A->getValue()); 3173 3174 return Success; 3175 } 3176 3177 void CompilerInvocation::ParseHeaderSearchArgs(CompilerInvocation &Res, 3178 HeaderSearchOptions &Opts, 3179 ArgList &Args, 3180 DiagnosticsEngine &Diags, 3181 const std::string &WorkingDir) { 3182 auto DummyOpts = std::make_shared<HeaderSearchOptions>(); 3183 3184 RoundTrip( 3185 [&WorkingDir](CompilerInvocation &Res, ArgList &Args, 3186 DiagnosticsEngine &Diags) { 3187 return ::ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 3188 WorkingDir); 3189 }, 3190 [](CompilerInvocation &Res, SmallVectorImpl<const char *> &GeneratedArgs, 3191 CompilerInvocation::StringAllocator SA) { 3192 GenerateHeaderSearchArgs(Res.getHeaderSearchOpts(), GeneratedArgs, SA); 3193 }, 3194 [&DummyOpts](CompilerInvocation &Res) { 3195 Res.HeaderSearchOpts.swap(DummyOpts); 3196 }, 3197 Res, Args, Diags, "HeaderSearchOptions"); 3198 } 3199 3200 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 3201 const llvm::Triple &T, 3202 std::vector<std::string> &Includes, 3203 LangStandard::Kind LangStd) { 3204 // Set some properties which depend solely on the input kind; it would be nice 3205 // to move these to the language standard, and have the driver resolve the 3206 // input kind + language standard. 3207 // 3208 // FIXME: Perhaps a better model would be for a single source file to have 3209 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 3210 // simultaneously active? 3211 if (IK.getLanguage() == Language::Asm) { 3212 Opts.AsmPreprocessor = 1; 3213 } else if (IK.isObjectiveC()) { 3214 Opts.ObjC = 1; 3215 } 3216 3217 if (LangStd == LangStandard::lang_unspecified) { 3218 // Based on the base language, pick one. 3219 switch (IK.getLanguage()) { 3220 case Language::Unknown: 3221 case Language::LLVM_IR: 3222 llvm_unreachable("Invalid input kind!"); 3223 case Language::OpenCL: 3224 LangStd = LangStandard::lang_opencl10; 3225 break; 3226 case Language::CUDA: 3227 LangStd = LangStandard::lang_cuda; 3228 break; 3229 case Language::Asm: 3230 case Language::C: 3231 #if defined(CLANG_DEFAULT_STD_C) 3232 LangStd = CLANG_DEFAULT_STD_C; 3233 #else 3234 // The PS4 uses C99 as the default C standard. 3235 if (T.isPS4()) 3236 LangStd = LangStandard::lang_gnu99; 3237 else 3238 LangStd = LangStandard::lang_gnu17; 3239 #endif 3240 break; 3241 case Language::ObjC: 3242 #if defined(CLANG_DEFAULT_STD_C) 3243 LangStd = CLANG_DEFAULT_STD_C; 3244 #else 3245 LangStd = LangStandard::lang_gnu11; 3246 #endif 3247 break; 3248 case Language::CXX: 3249 case Language::ObjCXX: 3250 #if defined(CLANG_DEFAULT_STD_CXX) 3251 LangStd = CLANG_DEFAULT_STD_CXX; 3252 #else 3253 LangStd = LangStandard::lang_gnucxx14; 3254 #endif 3255 break; 3256 case Language::RenderScript: 3257 LangStd = LangStandard::lang_c99; 3258 break; 3259 case Language::HIP: 3260 LangStd = LangStandard::lang_hip; 3261 break; 3262 } 3263 } 3264 3265 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3266 Opts.LangStd = LangStd; 3267 Opts.LineComment = Std.hasLineComments(); 3268 Opts.C99 = Std.isC99(); 3269 Opts.C11 = Std.isC11(); 3270 Opts.C17 = Std.isC17(); 3271 Opts.C2x = Std.isC2x(); 3272 Opts.CPlusPlus = Std.isCPlusPlus(); 3273 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 3274 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 3275 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 3276 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 3277 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 3278 Opts.GNUMode = Std.isGNUMode(); 3279 Opts.GNUCVersion = 0; 3280 Opts.HexFloats = Std.hasHexFloats(); 3281 Opts.ImplicitInt = Std.hasImplicitInt(); 3282 3283 Opts.CPlusPlusModules = Opts.CPlusPlus20; 3284 3285 // Set OpenCL Version. 3286 Opts.OpenCL = Std.isOpenCL(); 3287 if (LangStd == LangStandard::lang_opencl10) 3288 Opts.OpenCLVersion = 100; 3289 else if (LangStd == LangStandard::lang_opencl11) 3290 Opts.OpenCLVersion = 110; 3291 else if (LangStd == LangStandard::lang_opencl12) 3292 Opts.OpenCLVersion = 120; 3293 else if (LangStd == LangStandard::lang_opencl20) 3294 Opts.OpenCLVersion = 200; 3295 else if (LangStd == LangStandard::lang_opencl30) 3296 Opts.OpenCLVersion = 300; 3297 else if (LangStd == LangStandard::lang_openclcpp) 3298 Opts.OpenCLCPlusPlusVersion = 100; 3299 3300 // OpenCL has some additional defaults. 3301 if (Opts.OpenCL) { 3302 Opts.AltiVec = 0; 3303 Opts.ZVector = 0; 3304 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3305 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 3306 Opts.OpenCLPipe = Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3307 Opts.OpenCLGenericAddressSpace = 3308 Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3309 3310 // Include default header file for OpenCL. 3311 if (Opts.IncludeDefaultHeader) { 3312 if (Opts.DeclareOpenCLBuiltins) { 3313 // Only include base header file for builtin types and constants. 3314 Includes.push_back("opencl-c-base.h"); 3315 } else { 3316 Includes.push_back("opencl-c.h"); 3317 } 3318 } 3319 } 3320 3321 Opts.HIP = IK.getLanguage() == Language::HIP; 3322 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 3323 if (Opts.HIP) { 3324 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 3325 // fuses multiplication/addition instructions without contract flag from 3326 // device library functions in LLVM bitcode, which causes accuracy loss in 3327 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 3328 // For device library functions in bitcode to work, 'Strict' or 'Standard' 3329 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 3330 // FP contract option is used to allow fuse across statements in frontend 3331 // whereas respecting contract flag in backend. 3332 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3333 } else if (Opts.CUDA) { 3334 // Allow fuse across statements disregarding pragmas. 3335 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3336 } 3337 3338 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 3339 3340 // OpenCL and C++ both have bool, true, false keywords. 3341 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 3342 3343 // OpenCL has half keyword 3344 Opts.Half = Opts.OpenCL; 3345 } 3346 3347 /// Check if input file kind and language standard are compatible. 3348 static bool IsInputCompatibleWithStandard(InputKind IK, 3349 const LangStandard &S) { 3350 switch (IK.getLanguage()) { 3351 case Language::Unknown: 3352 case Language::LLVM_IR: 3353 llvm_unreachable("should not parse language flags for this input"); 3354 3355 case Language::C: 3356 case Language::ObjC: 3357 case Language::RenderScript: 3358 return S.getLanguage() == Language::C; 3359 3360 case Language::OpenCL: 3361 return S.getLanguage() == Language::OpenCL; 3362 3363 case Language::CXX: 3364 case Language::ObjCXX: 3365 return S.getLanguage() == Language::CXX; 3366 3367 case Language::CUDA: 3368 // FIXME: What -std= values should be permitted for CUDA compilations? 3369 return S.getLanguage() == Language::CUDA || 3370 S.getLanguage() == Language::CXX; 3371 3372 case Language::HIP: 3373 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3374 3375 case Language::Asm: 3376 // Accept (and ignore) all -std= values. 3377 // FIXME: The -std= value is not ignored; it affects the tokenization 3378 // and preprocessing rules if we're preprocessing this asm input. 3379 return true; 3380 } 3381 3382 llvm_unreachable("unexpected input language"); 3383 } 3384 3385 /// Get language name for given input kind. 3386 static const StringRef GetInputKindName(InputKind IK) { 3387 switch (IK.getLanguage()) { 3388 case Language::C: 3389 return "C"; 3390 case Language::ObjC: 3391 return "Objective-C"; 3392 case Language::CXX: 3393 return "C++"; 3394 case Language::ObjCXX: 3395 return "Objective-C++"; 3396 case Language::OpenCL: 3397 return "OpenCL"; 3398 case Language::CUDA: 3399 return "CUDA"; 3400 case Language::RenderScript: 3401 return "RenderScript"; 3402 case Language::HIP: 3403 return "HIP"; 3404 3405 case Language::Asm: 3406 return "Asm"; 3407 case Language::LLVM_IR: 3408 return "LLVM IR"; 3409 3410 case Language::Unknown: 3411 break; 3412 } 3413 llvm_unreachable("unknown input language"); 3414 } 3415 3416 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3417 SmallVectorImpl<const char *> &Args, 3418 StringAllocator SA, 3419 const llvm::Triple &T) { 3420 OptSpecifier StdOpt; 3421 switch (Opts.LangStd) { 3422 case LangStandard::lang_opencl10: 3423 case LangStandard::lang_opencl11: 3424 case LangStandard::lang_opencl12: 3425 case LangStandard::lang_opencl20: 3426 case LangStandard::lang_opencl30: 3427 case LangStandard::lang_openclcpp: 3428 StdOpt = OPT_cl_std_EQ; 3429 break; 3430 default: 3431 StdOpt = OPT_std_EQ; 3432 break; 3433 } 3434 3435 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3436 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3437 3438 if (Opts.IncludeDefaultHeader) 3439 GenerateArg(Args, OPT_finclude_default_header, SA); 3440 if (Opts.DeclareOpenCLBuiltins) 3441 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3442 3443 const LangOptions *LangOpts = &Opts; 3444 3445 #define LANG_OPTION_WITH_MARSHALLING( \ 3446 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3447 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3448 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3449 MERGER, EXTRACTOR, TABLE_INDEX) \ 3450 GENERATE_OPTION_WITH_MARSHALLING( \ 3451 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3452 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3453 #include "clang/Driver/Options.inc" 3454 #undef LANG_OPTION_WITH_MARSHALLING 3455 3456 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3457 3458 if (Opts.ObjC) { 3459 std::string Buffer; 3460 llvm::raw_string_ostream Stream(Buffer); 3461 Stream << Opts.ObjCRuntime; 3462 GenerateArg(Args, OPT_fobjc_runtime_EQ, Stream.str(), SA); 3463 3464 if (Opts.GC == LangOptions::GCOnly) 3465 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3466 else if (Opts.GC == LangOptions::HybridGC) 3467 GenerateArg(Args, OPT_fobjc_gc, SA); 3468 else if (Opts.ObjCAutoRefCount == 1) 3469 GenerateArg(Args, OPT_fobjc_arc, SA); 3470 3471 if (Opts.ObjCWeakRuntime) 3472 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3473 3474 if (Opts.ObjCWeak) 3475 GenerateArg(Args, OPT_fobjc_weak, SA); 3476 3477 if (Opts.ObjCSubscriptingLegacyRuntime) 3478 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3479 } 3480 3481 if (Opts.GNUCVersion != 0) { 3482 unsigned Major = Opts.GNUCVersion / 100 / 100; 3483 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3484 unsigned Patch = Opts.GNUCVersion % 100; 3485 GenerateArg(Args, OPT_fgnuc_version_EQ, 3486 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3487 } 3488 3489 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3490 GenerateArg(Args, OPT_ftrapv, SA); 3491 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3492 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3493 GenerateArg(Args, OPT_fwrapv, SA); 3494 } 3495 3496 if (Opts.MSCompatibilityVersion != 0) { 3497 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3498 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3499 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3500 GenerateArg(Args, OPT_fms_compatibility_version, 3501 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3502 } 3503 3504 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3505 if (!Opts.Trigraphs) 3506 GenerateArg(Args, OPT_fno_trigraphs, SA); 3507 } else { 3508 if (Opts.Trigraphs) 3509 GenerateArg(Args, OPT_ftrigraphs, SA); 3510 } 3511 3512 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3513 GenerateArg(Args, OPT_fblocks, SA); 3514 3515 if (Opts.ConvergentFunctions && 3516 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3517 GenerateArg(Args, OPT_fconvergent_functions, SA); 3518 3519 if (Opts.NoBuiltin && !Opts.Freestanding) 3520 GenerateArg(Args, OPT_fno_builtin, SA); 3521 3522 if (!Opts.NoBuiltin) 3523 for (const auto &Func : Opts.NoBuiltinFuncs) 3524 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3525 3526 if (Opts.LongDoubleSize == 128) 3527 GenerateArg(Args, OPT_mlong_double_128, SA); 3528 else if (Opts.LongDoubleSize == 64) 3529 GenerateArg(Args, OPT_mlong_double_64, SA); 3530 3531 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3532 3533 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3534 // '-fopenmp-targets='. 3535 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3536 GenerateArg(Args, OPT_fopenmp, SA); 3537 3538 if (Opts.OpenMP != 50) 3539 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3540 3541 if (!Opts.OpenMPUseTLS) 3542 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3543 3544 if (Opts.OpenMPIsDevice) 3545 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3546 3547 if (Opts.OpenMPIRBuilder) 3548 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3549 } 3550 3551 if (Opts.OpenMPSimd) { 3552 GenerateArg(Args, OPT_fopenmp_simd, SA); 3553 3554 if (Opts.OpenMP != 50) 3555 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3556 } 3557 3558 if (Opts.OpenMPCUDANumSMs != 0) 3559 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3560 Twine(Opts.OpenMPCUDANumSMs), SA); 3561 3562 if (Opts.OpenMPCUDABlocksPerSM != 0) 3563 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3564 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3565 3566 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3567 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3568 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3569 3570 if (!Opts.OMPTargetTriples.empty()) { 3571 std::string Targets; 3572 llvm::raw_string_ostream OS(Targets); 3573 llvm::interleave( 3574 Opts.OMPTargetTriples, OS, 3575 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3576 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3577 } 3578 3579 if (!Opts.OMPHostIRFile.empty()) 3580 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3581 3582 if (Opts.OpenMPCUDAMode) 3583 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3584 3585 if (Opts.OpenMPCUDATargetParallel) 3586 GenerateArg(Args, OPT_fopenmp_cuda_parallel_target_regions, SA); 3587 3588 if (Opts.OpenMPCUDAForceFullRuntime) 3589 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3590 3591 // The arguments used to set 'Optimize' and 'OptimizeSize' will be generated 3592 // by CodeGenOptions. 3593 3594 if (Opts.NoInlineDefine && Opts.Optimize) 3595 GenerateArg(Args, OPT_fno_inline, SA); 3596 3597 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3598 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3599 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3600 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3601 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3602 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3603 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3604 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3605 3606 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3607 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3608 3609 // Conflating '-fsanitize-system-blacklist' and '-fsanitize-blacklist'. 3610 for (const std::string &F : Opts.SanitizerBlacklistFiles) 3611 GenerateArg(Args, OPT_fsanitize_blacklist, F, SA); 3612 3613 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3614 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3615 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3616 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3617 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3618 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3619 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3620 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3621 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3622 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3623 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3624 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3625 3626 if (Opts.getSignReturnAddressScope() == 3627 LangOptions::SignReturnAddressScopeKind::All) 3628 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3629 else if (Opts.getSignReturnAddressScope() == 3630 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3631 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3632 3633 if (Opts.getSignReturnAddressKey() == 3634 LangOptions::SignReturnAddressKeyKind::BKey) 3635 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3636 } 3637 3638 bool CompilerInvocation::ParseLangArgsImpl(LangOptions &Opts, ArgList &Args, 3639 InputKind IK, const llvm::Triple &T, 3640 std::vector<std::string> &Includes, 3641 DiagnosticsEngine &Diags) { 3642 unsigned NumErrorsBefore = Diags.getNumErrors(); 3643 3644 // FIXME: Cleanup per-file based stuff. 3645 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3646 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3647 LangStd = LangStandard::getLangKind(A->getValue()); 3648 if (LangStd == LangStandard::lang_unspecified) { 3649 Diags.Report(diag::err_drv_invalid_value) 3650 << A->getAsString(Args) << A->getValue(); 3651 // Report supported standards with short description. 3652 for (unsigned KindValue = 0; 3653 KindValue != LangStandard::lang_unspecified; 3654 ++KindValue) { 3655 const LangStandard &Std = LangStandard::getLangStandardForKind( 3656 static_cast<LangStandard::Kind>(KindValue)); 3657 if (IsInputCompatibleWithStandard(IK, Std)) { 3658 auto Diag = Diags.Report(diag::note_drv_use_standard); 3659 Diag << Std.getName() << Std.getDescription(); 3660 unsigned NumAliases = 0; 3661 #define LANGSTANDARD(id, name, lang, desc, features) 3662 #define LANGSTANDARD_ALIAS(id, alias) \ 3663 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3664 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3665 #include "clang/Basic/LangStandards.def" 3666 Diag << NumAliases; 3667 #define LANGSTANDARD(id, name, lang, desc, features) 3668 #define LANGSTANDARD_ALIAS(id, alias) \ 3669 if (KindValue == LangStandard::lang_##id) Diag << alias; 3670 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3671 #include "clang/Basic/LangStandards.def" 3672 } 3673 } 3674 } else { 3675 // Valid standard, check to make sure language and standard are 3676 // compatible. 3677 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3678 if (!IsInputCompatibleWithStandard(IK, Std)) { 3679 Diags.Report(diag::err_drv_argument_not_allowed_with) 3680 << A->getAsString(Args) << GetInputKindName(IK); 3681 } 3682 } 3683 } 3684 3685 // -cl-std only applies for OpenCL language standards. 3686 // Override the -std option in this case. 3687 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3688 LangStandard::Kind OpenCLLangStd 3689 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3690 .Cases("cl", "CL", LangStandard::lang_opencl10) 3691 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3692 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3693 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3694 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3695 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3696 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 3697 .Default(LangStandard::lang_unspecified); 3698 3699 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3700 Diags.Report(diag::err_drv_invalid_value) 3701 << A->getAsString(Args) << A->getValue(); 3702 } 3703 else 3704 LangStd = OpenCLLangStd; 3705 } 3706 3707 // These need to be parsed now. They are used to set OpenCL defaults. 3708 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3709 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3710 3711 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd); 3712 3713 // The key paths of codegen options defined in Options.td start with 3714 // "LangOpts->". Let's provide the expected variable name and type. 3715 LangOptions *LangOpts = &Opts; 3716 bool Success = true; 3717 3718 #define LANG_OPTION_WITH_MARSHALLING( \ 3719 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3720 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3721 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3722 MERGER, EXTRACTOR, TABLE_INDEX) \ 3723 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 3724 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3725 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 3726 MERGER, TABLE_INDEX) 3727 #include "clang/Driver/Options.inc" 3728 #undef LANG_OPTION_WITH_MARSHALLING 3729 3730 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3731 StringRef Name = A->getValue(); 3732 if (Name == "full" || Name == "branch") { 3733 Opts.CFProtectionBranch = 1; 3734 } 3735 } 3736 3737 3738 if (auto *A = Args.getLastArg(OPT_cuid_EQ)) { 3739 Opts.CUID = std::string(A->getValue()); 3740 } 3741 3742 if (Opts.ObjC) { 3743 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3744 StringRef value = arg->getValue(); 3745 if (Opts.ObjCRuntime.tryParse(value)) 3746 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3747 } 3748 3749 if (Args.hasArg(OPT_fobjc_gc_only)) 3750 Opts.setGC(LangOptions::GCOnly); 3751 else if (Args.hasArg(OPT_fobjc_gc)) 3752 Opts.setGC(LangOptions::HybridGC); 3753 else if (Args.hasArg(OPT_fobjc_arc)) { 3754 Opts.ObjCAutoRefCount = 1; 3755 if (!Opts.ObjCRuntime.allowsARC()) 3756 Diags.Report(diag::err_arc_unsupported_on_runtime); 3757 } 3758 3759 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3760 // whether the feature is actually enabled. This is predominantly 3761 // determined by -fobjc-runtime, but we allow it to be overridden 3762 // from the command line for testing purposes. 3763 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3764 Opts.ObjCWeakRuntime = 1; 3765 else 3766 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3767 3768 // ObjCWeak determines whether __weak is actually enabled. 3769 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3770 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3771 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3772 assert(!Opts.ObjCWeak); 3773 } else if (Opts.getGC() != LangOptions::NonGC) { 3774 Diags.Report(diag::err_objc_weak_with_gc); 3775 } else if (!Opts.ObjCWeakRuntime) { 3776 Diags.Report(diag::err_objc_weak_unsupported); 3777 } else { 3778 Opts.ObjCWeak = 1; 3779 } 3780 } else if (Opts.ObjCAutoRefCount) { 3781 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3782 } 3783 3784 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3785 Opts.ObjCSubscriptingLegacyRuntime = 3786 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3787 } 3788 3789 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3790 // Check that the version has 1 to 3 components and the minor and patch 3791 // versions fit in two decimal digits. 3792 VersionTuple GNUCVer; 3793 bool Invalid = GNUCVer.tryParse(A->getValue()); 3794 unsigned Major = GNUCVer.getMajor(); 3795 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3796 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3797 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3798 Diags.Report(diag::err_drv_invalid_value) 3799 << A->getAsString(Args) << A->getValue(); 3800 } 3801 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3802 } 3803 3804 if (Args.hasArg(OPT_ftrapv)) { 3805 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3806 // Set the handler, if one is specified. 3807 Opts.OverflowHandler = 3808 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3809 } 3810 else if (Args.hasArg(OPT_fwrapv)) 3811 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3812 3813 Opts.MSCompatibilityVersion = 0; 3814 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3815 VersionTuple VT; 3816 if (VT.tryParse(A->getValue())) 3817 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3818 << A->getValue(); 3819 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3820 VT.getMinor().getValueOr(0) * 100000 + 3821 VT.getSubminor().getValueOr(0); 3822 } 3823 3824 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3825 // is specified, or -std is set to a conforming mode. 3826 // Trigraphs are disabled by default in c++1z onwards. 3827 // For z/OS, trigraphs are enabled by default (without regard to the above). 3828 Opts.Trigraphs = 3829 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3830 Opts.Trigraphs = 3831 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3832 3833 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3834 && Opts.OpenCLVersion == 200); 3835 3836 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3837 Opts.SYCLIsDevice || 3838 Args.hasArg(OPT_fconvergent_functions); 3839 3840 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3841 if (!Opts.NoBuiltin) 3842 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3843 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3844 ? 128 3845 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3846 if (Opts.FastRelaxedMath) 3847 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3848 llvm::sort(Opts.ModuleFeatures); 3849 3850 // -mrtd option 3851 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3852 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3853 Diags.Report(diag::err_drv_argument_not_allowed_with) 3854 << A->getSpelling() << "-fdefault-calling-conv"; 3855 else { 3856 if (T.getArch() != llvm::Triple::x86) 3857 Diags.Report(diag::err_drv_argument_not_allowed_with) 3858 << A->getSpelling() << T.getTriple(); 3859 else 3860 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3861 } 3862 } 3863 3864 // Check if -fopenmp is specified and set default version to 5.0. 3865 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3866 // Check if -fopenmp-simd is specified. 3867 bool IsSimdSpecified = 3868 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3869 /*Default=*/false); 3870 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3871 Opts.OpenMPUseTLS = 3872 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3873 Opts.OpenMPIsDevice = 3874 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3875 Opts.OpenMPIRBuilder = 3876 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3877 bool IsTargetSpecified = 3878 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3879 3880 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3881 3882 if (Opts.OpenMP || Opts.OpenMPSimd) { 3883 if (int Version = getLastArgIntValue( 3884 Args, OPT_fopenmp_version_EQ, 3885 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3886 Opts.OpenMP = Version; 3887 // Provide diagnostic when a given target is not expected to be an OpenMP 3888 // device or host. 3889 if (!Opts.OpenMPIsDevice) { 3890 switch (T.getArch()) { 3891 default: 3892 break; 3893 // Add unsupported host targets here: 3894 case llvm::Triple::nvptx: 3895 case llvm::Triple::nvptx64: 3896 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3897 break; 3898 } 3899 } 3900 } 3901 3902 // Set the flag to prevent the implementation from emitting device exception 3903 // handling code for those requiring so. 3904 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3905 Opts.OpenCLCPlusPlus) { 3906 Opts.Exceptions = 0; 3907 Opts.CXXExceptions = 0; 3908 } 3909 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3910 Opts.OpenMPCUDANumSMs = 3911 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3912 Opts.OpenMPCUDANumSMs, Diags); 3913 Opts.OpenMPCUDABlocksPerSM = 3914 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3915 Opts.OpenMPCUDABlocksPerSM, Diags); 3916 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3917 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3918 Opts.OpenMPCUDAReductionBufNum, Diags); 3919 } 3920 3921 // Get the OpenMP target triples if any. 3922 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3923 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3924 auto getArchPtrSize = [](const llvm::Triple &T) { 3925 if (T.isArch16Bit()) 3926 return Arch16Bit; 3927 if (T.isArch32Bit()) 3928 return Arch32Bit; 3929 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3930 return Arch64Bit; 3931 }; 3932 3933 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3934 llvm::Triple TT(A->getValue(i)); 3935 3936 if (TT.getArch() == llvm::Triple::UnknownArch || 3937 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3938 TT.getArch() == llvm::Triple::nvptx || 3939 TT.getArch() == llvm::Triple::nvptx64 || 3940 TT.getArch() == llvm::Triple::amdgcn || 3941 TT.getArch() == llvm::Triple::x86 || 3942 TT.getArch() == llvm::Triple::x86_64)) 3943 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3944 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3945 Diags.Report(diag::err_drv_incompatible_omp_arch) 3946 << A->getValue(i) << T.str(); 3947 else 3948 Opts.OMPTargetTriples.push_back(TT); 3949 } 3950 } 3951 3952 // Get OpenMP host file path if any and report if a non existent file is 3953 // found 3954 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3955 Opts.OMPHostIRFile = A->getValue(); 3956 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3957 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3958 << Opts.OMPHostIRFile; 3959 } 3960 3961 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3962 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3963 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3964 3965 // Set CUDA support for parallel execution of target regions for OpenMP target 3966 // NVPTX/AMDGCN if specified in options. 3967 Opts.OpenMPCUDATargetParallel = 3968 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3969 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 3970 3971 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3972 Opts.OpenMPCUDAForceFullRuntime = 3973 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3974 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3975 3976 // FIXME: Eliminate this dependency. 3977 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3978 OptSize = getOptimizationLevelSize(Args); 3979 Opts.Optimize = Opt != 0; 3980 Opts.OptimizeSize = OptSize != 0; 3981 3982 // This is the __NO_INLINE__ define, which just depends on things like the 3983 // optimization level and -fno-inline, not actually whether the backend has 3984 // inlining enabled. 3985 Opts.NoInlineDefine = !Opts.Optimize; 3986 if (Arg *InlineArg = Args.getLastArg( 3987 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3988 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3989 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3990 Opts.NoInlineDefine = true; 3991 3992 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3993 StringRef Val = A->getValue(); 3994 if (Val == "fast") 3995 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3996 else if (Val == "on") 3997 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3998 else if (Val == "off") 3999 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 4000 else if (Val == "fast-honor-pragmas") 4001 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 4002 else 4003 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 4004 } 4005 4006 // Parse -fsanitize= arguments. 4007 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4008 Diags, Opts.Sanitize); 4009 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 4010 std::vector<std::string> systemBlacklists = 4011 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 4012 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(), 4013 systemBlacklists.begin(), 4014 systemBlacklists.end()); 4015 4016 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 4017 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4018 4019 StringRef Ver = A->getValue(); 4020 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4021 unsigned Major, Minor = 0; 4022 4023 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4024 // y or y.0 (4 <= y <= current version). 4025 if (!VerParts.first.startswith("0") && 4026 !VerParts.first.getAsInteger(10, Major) && 4027 3 <= Major && Major <= CLANG_VERSION_MAJOR && 4028 (Major == 3 ? VerParts.second.size() == 1 && 4029 !VerParts.second.getAsInteger(10, Minor) 4030 : VerParts.first.size() == Ver.size() || 4031 VerParts.second == "0")) { 4032 // Got a valid version number. 4033 if (Major == 3 && Minor <= 8) 4034 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4035 else if (Major <= 4) 4036 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4037 else if (Major <= 6) 4038 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4039 else if (Major <= 7) 4040 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4041 else if (Major <= 9) 4042 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4043 else if (Major <= 11) 4044 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4045 } else if (Ver != "latest") { 4046 Diags.Report(diag::err_drv_invalid_value) 4047 << A->getAsString(Args) << A->getValue(); 4048 } 4049 } 4050 4051 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4052 StringRef SignScope = A->getValue(); 4053 4054 if (SignScope.equals_lower("none")) 4055 Opts.setSignReturnAddressScope( 4056 LangOptions::SignReturnAddressScopeKind::None); 4057 else if (SignScope.equals_lower("all")) 4058 Opts.setSignReturnAddressScope( 4059 LangOptions::SignReturnAddressScopeKind::All); 4060 else if (SignScope.equals_lower("non-leaf")) 4061 Opts.setSignReturnAddressScope( 4062 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4063 else 4064 Diags.Report(diag::err_drv_invalid_value) 4065 << A->getAsString(Args) << SignScope; 4066 4067 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4068 StringRef SignKey = A->getValue(); 4069 if (!SignScope.empty() && !SignKey.empty()) { 4070 if (SignKey.equals_lower("a_key")) 4071 Opts.setSignReturnAddressKey( 4072 LangOptions::SignReturnAddressKeyKind::AKey); 4073 else if (SignKey.equals_lower("b_key")) 4074 Opts.setSignReturnAddressKey( 4075 LangOptions::SignReturnAddressKeyKind::BKey); 4076 else 4077 Diags.Report(diag::err_drv_invalid_value) 4078 << A->getAsString(Args) << SignKey; 4079 } 4080 } 4081 } 4082 4083 return Success && Diags.getNumErrors() == NumErrorsBefore; 4084 } 4085 4086 bool CompilerInvocation::ParseLangArgs(CompilerInvocation &Res, 4087 LangOptions &Opts, 4088 llvm::opt::ArgList &Args, InputKind IK, 4089 const llvm::Triple &T, 4090 std::vector<std::string> &Includes, 4091 DiagnosticsEngine &Diags) { 4092 auto DummyOpts = std::make_shared<LangOptions>(); 4093 4094 // We need to work around inconsistencies related to optimization flags. Their 4095 // primary consumer is CodeGenOptions. However, the LangOptions parser also 4096 // queries them, which means RoundTrip expects us to generate them. We don't 4097 // want to do it in GenerateLangArgs, because it should eventually be the 4098 // responsibility of GenerateCodeGenArgs. Until we start doing one big 4099 // round-trip, let's do it here. 4100 // 4101 // Our parser always queries OPT_O_Group. When given -O1, -O2 or -O3, it also 4102 // queries OPT_O. To ensure RoundTrip consistently considers us responsible 4103 // for generating all of them, we ensure to proactively query them all. 4104 4105 return RoundTrip( 4106 [IK, &T, &Includes](CompilerInvocation &Res, ArgList &Args, 4107 DiagnosticsEngine &Diags) { 4108 // Proactively query all optimization flags. 4109 Args.getLastArg(OPT_O0, OPT_O4, OPT_O, OPT_Ofast); 4110 return ParseLangArgsImpl(*Res.getLangOpts(), Args, IK, T, Includes, 4111 Diags); 4112 }, 4113 [&T, &Args](CompilerInvocation &Res, 4114 SmallVectorImpl<const char *> &GenArgs, StringAllocator SA) { 4115 GenerateLangArgs(*Res.getLangOpts(), GenArgs, SA, T); 4116 // Generate all optimization flags we queried. 4117 if (Arg *A = Args.getLastArg(OPT_O_Group)) { 4118 OptSpecifier Opt = A->getOption().getID(); 4119 4120 if (A->getNumValues() > 0) 4121 GenerateArg(GenArgs, Opt, A->getValues().back(), SA); 4122 else 4123 GenerateArg(GenArgs, Opt, SA); 4124 } 4125 4126 // We also queried -fcf-protection, but don't have enough information to 4127 // generate it. Eventually, it will be generated from CodeGenOptions. 4128 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) 4129 GenerateArg(GenArgs, OPT_fcf_protection_EQ, A->getValue(), SA); 4130 }, 4131 [&DummyOpts](CompilerInvocation &Res) { Res.LangOpts.swap(DummyOpts); }, 4132 Res, Args, Diags, "LangOptions"); 4133 } 4134 4135 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4136 switch (Action) { 4137 case frontend::ASTDeclList: 4138 case frontend::ASTDump: 4139 case frontend::ASTPrint: 4140 case frontend::ASTView: 4141 case frontend::EmitAssembly: 4142 case frontend::EmitBC: 4143 case frontend::EmitHTML: 4144 case frontend::EmitLLVM: 4145 case frontend::EmitLLVMOnly: 4146 case frontend::EmitCodeGenOnly: 4147 case frontend::EmitObj: 4148 case frontend::FixIt: 4149 case frontend::GenerateModule: 4150 case frontend::GenerateModuleInterface: 4151 case frontend::GenerateHeaderModule: 4152 case frontend::GeneratePCH: 4153 case frontend::GenerateInterfaceStubs: 4154 case frontend::ParseSyntaxOnly: 4155 case frontend::ModuleFileInfo: 4156 case frontend::VerifyPCH: 4157 case frontend::PluginAction: 4158 case frontend::RewriteObjC: 4159 case frontend::RewriteTest: 4160 case frontend::RunAnalysis: 4161 case frontend::TemplightDump: 4162 case frontend::MigrateSource: 4163 return false; 4164 4165 case frontend::DumpCompilerOptions: 4166 case frontend::DumpRawTokens: 4167 case frontend::DumpTokens: 4168 case frontend::InitOnly: 4169 case frontend::PrintPreamble: 4170 case frontend::PrintPreprocessedInput: 4171 case frontend::RewriteMacros: 4172 case frontend::RunPreprocessorOnly: 4173 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4174 return true; 4175 } 4176 llvm_unreachable("invalid frontend action"); 4177 } 4178 4179 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4180 SmallVectorImpl<const char *> &Args, 4181 CompilerInvocation::StringAllocator SA, 4182 const LangOptions &LangOpts, 4183 const FrontendOptions &FrontendOpts, 4184 const CodeGenOptions &CodeGenOpts) { 4185 PreprocessorOptions *PreprocessorOpts = &Opts; 4186 4187 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4188 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4189 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4190 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4191 MERGER, EXTRACTOR, TABLE_INDEX) \ 4192 GENERATE_OPTION_WITH_MARSHALLING( \ 4193 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4194 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4195 #include "clang/Driver/Options.inc" 4196 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4197 4198 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4199 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4200 4201 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4202 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4203 4204 for (const auto &MP : Opts.MacroPrefixMap) 4205 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 4206 4207 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4208 GenerateArg(Args, OPT_preamble_bytes_EQ, 4209 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4210 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4211 SA); 4212 4213 for (const auto &M : Opts.Macros) { 4214 // Don't generate __CET__ macro definitions. They are implied by the 4215 // -fcf-protection option that is generated elsewhere. 4216 if (M.first == "__CET__=1" && !M.second && 4217 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4218 continue; 4219 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4220 !CodeGenOpts.CFProtectionBranch) 4221 continue; 4222 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4223 CodeGenOpts.CFProtectionBranch) 4224 continue; 4225 4226 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4227 } 4228 4229 for (const auto &I : Opts.Includes) { 4230 // Don't generate OpenCL includes. They are implied by other flags that are 4231 // generated elsewhere. 4232 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4233 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4234 I == "opencl-c.h")) 4235 continue; 4236 4237 GenerateArg(Args, OPT_include, I, SA); 4238 } 4239 4240 for (const auto &CI : Opts.ChainedIncludes) 4241 GenerateArg(Args, OPT_chain_include, CI, SA); 4242 4243 for (const auto &RF : Opts.RemappedFiles) 4244 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4245 4246 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4247 // generated elsewhere. 4248 } 4249 4250 static bool ParsePreprocessorArgsImpl(PreprocessorOptions &Opts, ArgList &Args, 4251 DiagnosticsEngine &Diags, 4252 frontend::ActionKind Action, 4253 const FrontendOptions &FrontendOpts) { 4254 PreprocessorOptions *PreprocessorOpts = &Opts; 4255 bool Success = true; 4256 4257 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4258 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4259 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4260 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4261 MERGER, EXTRACTOR, TABLE_INDEX) \ 4262 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4263 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4264 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4265 MERGER, TABLE_INDEX) 4266 #include "clang/Driver/Options.inc" 4267 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4268 4269 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4270 Args.hasArg(OPT_pch_through_hdrstop_use); 4271 4272 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4273 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4274 4275 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4276 auto Split = StringRef(A).split('='); 4277 Opts.MacroPrefixMap.insert( 4278 {std::string(Split.first), std::string(Split.second)}); 4279 } 4280 4281 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4282 StringRef Value(A->getValue()); 4283 size_t Comma = Value.find(','); 4284 unsigned Bytes = 0; 4285 unsigned EndOfLine = 0; 4286 4287 if (Comma == StringRef::npos || 4288 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4289 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4290 Diags.Report(diag::err_drv_preamble_format); 4291 else { 4292 Opts.PrecompiledPreambleBytes.first = Bytes; 4293 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4294 } 4295 } 4296 4297 // Add the __CET__ macro if a CFProtection option is set. 4298 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4299 StringRef Name = A->getValue(); 4300 if (Name == "branch") 4301 Opts.addMacroDef("__CET__=1"); 4302 else if (Name == "return") 4303 Opts.addMacroDef("__CET__=2"); 4304 else if (Name == "full") 4305 Opts.addMacroDef("__CET__=3"); 4306 } 4307 4308 // Add macros from the command line. 4309 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4310 if (A->getOption().matches(OPT_D)) 4311 Opts.addMacroDef(A->getValue()); 4312 else 4313 Opts.addMacroUndef(A->getValue()); 4314 } 4315 4316 // Add the ordered list of -includes. 4317 for (const auto *A : Args.filtered(OPT_include)) 4318 Opts.Includes.emplace_back(A->getValue()); 4319 4320 for (const auto *A : Args.filtered(OPT_chain_include)) 4321 Opts.ChainedIncludes.emplace_back(A->getValue()); 4322 4323 for (const auto *A : Args.filtered(OPT_remap_file)) { 4324 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4325 4326 if (Split.second.empty()) { 4327 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4328 continue; 4329 } 4330 4331 Opts.addRemappedFile(Split.first, Split.second); 4332 } 4333 4334 // Always avoid lexing editor placeholders when we're just running the 4335 // preprocessor as we never want to emit the 4336 // "editor placeholder in source file" error in PP only mode. 4337 if (isStrictlyPreprocessorAction(Action)) 4338 Opts.LexEditorPlaceholders = false; 4339 4340 return Success; 4341 } 4342 4343 static bool ParsePreprocessorArgs(CompilerInvocation &Res, 4344 PreprocessorOptions &Opts, ArgList &Args, 4345 DiagnosticsEngine &Diags, 4346 frontend::ActionKind Action, 4347 FrontendOptions &FrontendOpts) { 4348 auto DummyOpts = std::make_shared<PreprocessorOptions>(); 4349 4350 auto Parse = [Action](CompilerInvocation &Res, ArgList &Args, 4351 DiagnosticsEngine &Diags) { 4352 return ParsePreprocessorArgsImpl(Res.getPreprocessorOpts(), Args, Diags, 4353 Action, Res.getFrontendOpts()); 4354 }; 4355 4356 auto Generate = [&Args](CompilerInvocation &Res, 4357 SmallVectorImpl<const char *> &GeneratedArgs, 4358 CompilerInvocation::StringAllocator SA) { 4359 GeneratePreprocessorArgs(Res.getPreprocessorOpts(), GeneratedArgs, SA, 4360 *Res.getLangOpts(), Res.getFrontendOpts(), 4361 Res.getCodeGenOpts()); 4362 // The ParsePreprocessorArgs function queries the -fcf-protection option, 4363 // which means that it won't be directly copied during argument generation. 4364 // The GeneratePreprocessorArgs function isn't responsible for generating it 4365 // either. This would cause -fcf-protection to get forgotten during 4366 // round-trip and the __CET__ macros wouldn't get deduced during second call 4367 // to ParsePreprocessorArgs. Let's fix this by generating -fcf-protection 4368 // here. 4369 // TODO: Remove this once we're doing one big round-trip instead of many 4370 // small ones. 4371 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) 4372 GenerateArg(GeneratedArgs, OPT_fcf_protection_EQ, A->getValue(), SA); 4373 }; 4374 4375 auto Swap = [&DummyOpts](CompilerInvocation &Res) { 4376 std::swap(Res.PreprocessorOpts, DummyOpts); 4377 }; 4378 4379 return RoundTrip(Parse, Generate, Swap, Res, Args, Diags, 4380 "PreprocessorOptions"); 4381 } 4382 4383 static void GeneratePreprocessorOutputArgs( 4384 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4385 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4386 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4387 4388 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4389 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4390 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4391 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4392 MERGER, EXTRACTOR, TABLE_INDEX) \ 4393 GENERATE_OPTION_WITH_MARSHALLING( \ 4394 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4395 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4396 #include "clang/Driver/Options.inc" 4397 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4398 4399 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4400 if (Generate_dM) 4401 GenerateArg(Args, OPT_dM, SA); 4402 if (!Generate_dM && Opts.ShowMacros) 4403 GenerateArg(Args, OPT_dD, SA); 4404 } 4405 4406 static bool ParsePreprocessorOutputArgsImpl(PreprocessorOutputOptions &Opts, 4407 ArgList &Args, 4408 DiagnosticsEngine &Diags, 4409 frontend::ActionKind Action) { 4410 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4411 unsigned NumErrorsBefore = Diags.getNumErrors(); 4412 bool Success = true; 4413 4414 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4415 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4416 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4417 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4418 MERGER, EXTRACTOR, TABLE_INDEX) \ 4419 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4420 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4421 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4422 MERGER, TABLE_INDEX) 4423 #include "clang/Driver/Options.inc" 4424 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4425 4426 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4427 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4428 4429 return Success && Diags.getNumErrors() == NumErrorsBefore; 4430 } 4431 4432 static bool ParsePreprocessorOutputArgs(CompilerInvocation &Res, 4433 PreprocessorOutputOptions &Opts, 4434 ArgList &Args, DiagnosticsEngine &Diags, 4435 frontend::ActionKind Action) { 4436 PreprocessorOutputOptions DummyOpts; 4437 4438 return RoundTrip( 4439 [Action](CompilerInvocation &Res, ArgList &Args, 4440 DiagnosticsEngine &Diags) { 4441 return ParsePreprocessorOutputArgsImpl(Res.getPreprocessorOutputOpts(), 4442 Args, Diags, Action); 4443 }, 4444 [Action](CompilerInvocation &Res, SmallVectorImpl<const char *> &Args, 4445 CompilerInvocation::StringAllocator SA) { 4446 GeneratePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 4447 SA, Action); 4448 }, 4449 [&DummyOpts](CompilerInvocation &Res) { 4450 std::swap(DummyOpts, Res.getPreprocessorOutputOpts()); 4451 }, 4452 Res, Args, Diags, "PreprocessorOutputOptions"); 4453 } 4454 4455 static void GenerateTargetArgs(const TargetOptions &Opts, 4456 SmallVectorImpl<const char *> &Args, 4457 CompilerInvocation::StringAllocator SA) { 4458 const TargetOptions *TargetOpts = &Opts; 4459 #define TARGET_OPTION_WITH_MARSHALLING( \ 4460 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4461 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4462 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4463 MERGER, EXTRACTOR, TABLE_INDEX) \ 4464 GENERATE_OPTION_WITH_MARSHALLING( \ 4465 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4466 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4467 #include "clang/Driver/Options.inc" 4468 #undef TARGET_OPTION_WITH_MARSHALLING 4469 4470 if (!Opts.SDKVersion.empty()) 4471 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4472 SA); 4473 } 4474 4475 static bool ParseTargetArgsImpl(TargetOptions &Opts, ArgList &Args, 4476 DiagnosticsEngine &Diags) { 4477 TargetOptions *TargetOpts = &Opts; 4478 unsigned NumErrorsBefore = Diags.getNumErrors(); 4479 bool Success = true; 4480 4481 #define TARGET_OPTION_WITH_MARSHALLING( \ 4482 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4483 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4484 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4485 MERGER, EXTRACTOR, TABLE_INDEX) \ 4486 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4487 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4488 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4489 MERGER, TABLE_INDEX) 4490 #include "clang/Driver/Options.inc" 4491 #undef TARGET_OPTION_WITH_MARSHALLING 4492 4493 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4494 llvm::VersionTuple Version; 4495 if (Version.tryParse(A->getValue())) 4496 Diags.Report(diag::err_drv_invalid_value) 4497 << A->getAsString(Args) << A->getValue(); 4498 else 4499 Opts.SDKVersion = Version; 4500 } 4501 4502 return Success && Diags.getNumErrors() == NumErrorsBefore; 4503 } 4504 4505 static bool ParseTargetArgs(CompilerInvocation &Res, TargetOptions &Opts, 4506 ArgList &Args, DiagnosticsEngine &Diags) { 4507 auto DummyOpts = std::make_shared<TargetOptions>(); 4508 4509 return RoundTrip( 4510 [](CompilerInvocation &Res, ArgList &Args, 4511 DiagnosticsEngine &Diags) { 4512 return ParseTargetArgsImpl(Res.getTargetOpts(), Args, Diags); 4513 }, 4514 [](CompilerInvocation &Res, SmallVectorImpl<const char *> &GeneratedArgs, 4515 CompilerInvocation::StringAllocator SA) { 4516 GenerateTargetArgs(Res.getTargetOpts(), GeneratedArgs, SA); 4517 }, 4518 [&DummyOpts](CompilerInvocation &Res) { 4519 Res.TargetOpts.swap(DummyOpts); 4520 }, 4521 Res, Args, Diags, "TargetArgs"); 4522 } 4523 4524 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 4525 ArrayRef<const char *> CommandLineArgs, 4526 DiagnosticsEngine &Diags, 4527 const char *Argv0) { 4528 bool Success = true; 4529 4530 // Parse the arguments. 4531 const OptTable &Opts = getDriverOptTable(); 4532 const unsigned IncludedFlagsBitmask = options::CC1Option; 4533 unsigned MissingArgIndex, MissingArgCount; 4534 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4535 MissingArgCount, IncludedFlagsBitmask); 4536 LangOptions &LangOpts = *Res.getLangOpts(); 4537 4538 // Check for missing argument error. 4539 if (MissingArgCount) { 4540 Diags.Report(diag::err_drv_missing_argument) 4541 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4542 Success = false; 4543 } 4544 4545 // Issue errors on unknown arguments. 4546 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4547 auto ArgString = A->getAsString(Args); 4548 std::string Nearest; 4549 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4550 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4551 else 4552 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4553 << ArgString << Nearest; 4554 Success = false; 4555 } 4556 4557 Success &= ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4558 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4559 Success &= ParseAnalyzerArgs(Res, *Res.getAnalyzerOpts(), Args, Diags); 4560 Success &= 4561 ParseDiagnosticArgsRoundTrip(Res, Res.getDiagnosticOpts(), Args, &Diags, 4562 /*DefaultDiagColor=*/false); 4563 Success &= ParseFrontendArgs(Res, Res.getFrontendOpts(), Args, Diags, 4564 LangOpts.IsHeaderFile); 4565 // FIXME: We shouldn't have to pass the DashX option around here 4566 InputKind DashX = Res.getFrontendOpts().DashX; 4567 ParseTargetArgs(Res, Res.getTargetOpts(), Args, Diags); 4568 llvm::Triple T(Res.getTargetOpts().Triple); 4569 ParseHeaderSearchArgs(Res, Res.getHeaderSearchOpts(), Args, Diags, 4570 Res.getFileSystemOpts().WorkingDir); 4571 if (DashX.getFormat() == InputKind::Precompiled || 4572 DashX.getLanguage() == Language::LLVM_IR) { 4573 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 4574 // PassManager in BackendUtil.cpp. They need to be initializd no matter 4575 // what the input type is. 4576 if (Args.hasArg(OPT_fobjc_arc)) 4577 LangOpts.ObjCAutoRefCount = 1; 4578 // PIClevel and PIELevel are needed during code generation and this should be 4579 // set regardless of the input type. 4580 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 4581 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 4582 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4583 Diags, LangOpts.Sanitize); 4584 } else { 4585 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 4586 // FIXME: Should we really be calling this for an Language::Asm input? 4587 Success &= ParseLangArgs(Res, LangOpts, Args, DashX, T, 4588 Res.getPreprocessorOpts().Includes, Diags); 4589 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4590 LangOpts.ObjCExceptions = 1; 4591 } 4592 4593 if (LangOpts.CUDA) { 4594 // During CUDA device-side compilation, the aux triple is the 4595 // triple used for host compilation. 4596 if (LangOpts.CUDAIsDevice) 4597 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4598 } 4599 4600 // Set the triple of the host for OpenMP device compile. 4601 if (LangOpts.OpenMPIsDevice) 4602 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4603 4604 Success &= ParseCodeGenArgs(Res, Res.getCodeGenOpts(), Args, DashX, Diags, T, 4605 Res.getFrontendOpts().OutputFile, LangOpts); 4606 4607 // FIXME: Override value name discarding when asan or msan is used because the 4608 // backend passes depend on the name of the alloca in order to print out 4609 // names. 4610 Res.getCodeGenOpts().DiscardValueNames &= 4611 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4612 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4613 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4614 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4615 4616 ParsePreprocessorArgs(Res, Res.getPreprocessorOpts(), Args, Diags, 4617 Res.getFrontendOpts().ProgramAction, 4618 Res.getFrontendOpts()); 4619 ParsePreprocessorOutputArgs(Res, Res.getPreprocessorOutputOpts(), Args, Diags, 4620 Res.getFrontendOpts().ProgramAction); 4621 4622 ParseDependencyOutputArgs(Res, Res.getDependencyOutputOpts(), Args, Diags, 4623 Res.getFrontendOpts().ProgramAction, 4624 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4625 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4626 Res.getDependencyOutputOpts().Targets.empty()) { 4627 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4628 Success = false; 4629 } 4630 4631 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4632 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4633 !Res.getLangOpts()->Sanitize.empty()) { 4634 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4635 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4636 } 4637 4638 // Store the command-line for using in the CodeView backend. 4639 Res.getCodeGenOpts().Argv0 = Argv0; 4640 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 4641 4642 FixupInvocation(Res, Diags, Args, DashX); 4643 4644 return Success; 4645 } 4646 4647 std::string CompilerInvocation::getModuleHash() const { 4648 // Note: For QoI reasons, the things we use as a hash here should all be 4649 // dumped via the -module-info flag. 4650 using llvm::hash_code; 4651 using llvm::hash_value; 4652 using llvm::hash_combine; 4653 using llvm::hash_combine_range; 4654 4655 // Start the signature with the compiler version. 4656 // FIXME: We'd rather use something more cryptographically sound than 4657 // CityHash, but this will do for now. 4658 hash_code code = hash_value(getClangFullRepositoryVersion()); 4659 4660 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4661 // and getClangFullRepositoryVersion() doesn't include git revision. 4662 code = hash_combine(code, serialization::VERSION_MAJOR, 4663 serialization::VERSION_MINOR); 4664 4665 // Extend the signature with the language options 4666 #define LANGOPT(Name, Bits, Default, Description) \ 4667 code = hash_combine(code, LangOpts->Name); 4668 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4669 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 4670 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4671 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4672 #include "clang/Basic/LangOptions.def" 4673 4674 for (StringRef Feature : LangOpts->ModuleFeatures) 4675 code = hash_combine(code, Feature); 4676 4677 code = hash_combine(code, LangOpts->ObjCRuntime); 4678 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 4679 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 4680 4681 // Extend the signature with the target options. 4682 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 4683 TargetOpts->TuneCPU, TargetOpts->ABI); 4684 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 4685 code = hash_combine(code, FeatureAsWritten); 4686 4687 // Extend the signature with preprocessor options. 4688 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4689 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4690 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 4691 4692 for (const auto &I : getPreprocessorOpts().Macros) { 4693 // If we're supposed to ignore this macro for the purposes of modules, 4694 // don't put it into the hash. 4695 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4696 // Check whether we're ignoring this macro. 4697 StringRef MacroDef = I.first; 4698 if (hsOpts.ModulesIgnoreMacros.count( 4699 llvm::CachedHashString(MacroDef.split('=').first))) 4700 continue; 4701 } 4702 4703 code = hash_combine(code, I.first, I.second); 4704 } 4705 4706 // Extend the signature with the sysroot and other header search options. 4707 code = hash_combine(code, hsOpts.Sysroot, 4708 hsOpts.ModuleFormat, 4709 hsOpts.UseDebugInfo, 4710 hsOpts.UseBuiltinIncludes, 4711 hsOpts.UseStandardSystemIncludes, 4712 hsOpts.UseStandardCXXIncludes, 4713 hsOpts.UseLibcxx, 4714 hsOpts.ModulesValidateDiagnosticOptions); 4715 code = hash_combine(code, hsOpts.ResourceDir); 4716 4717 if (hsOpts.ModulesStrictContextHash) { 4718 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 4719 hsOpts.SystemHeaderPrefixes.end()); 4720 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 4721 hsOpts.UserEntries.end()); 4722 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 4723 hsOpts.UserEntries.size(), UEC); 4724 4725 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4726 #define DIAGOPT(Name, Bits, Default) \ 4727 code = hash_combine(code, diagOpts.Name); 4728 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4729 code = hash_combine(code, diagOpts.get##Name()); 4730 #include "clang/Basic/DiagnosticOptions.def" 4731 #undef DIAGOPT 4732 #undef ENUM_DIAGOPT 4733 } 4734 4735 // Extend the signature with the user build path. 4736 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 4737 4738 // Extend the signature with the module file extensions. 4739 const FrontendOptions &frontendOpts = getFrontendOpts(); 4740 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 4741 code = ext->hashExtension(code); 4742 } 4743 4744 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4745 // affects the debug info in the PCM. 4746 if (getCodeGenOpts().DebugTypeExtRefs) 4747 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 4748 code = hash_combine(code, KeyValue.first, KeyValue.second); 4749 4750 // Extend the signature with the enabled sanitizers, if at least one is 4751 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4752 SanitizerSet SanHash = LangOpts->Sanitize; 4753 SanHash.clear(getPPTransparentSanitizers()); 4754 if (!SanHash.empty()) 4755 code = hash_combine(code, SanHash.Mask); 4756 4757 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 4758 } 4759 4760 void CompilerInvocation::generateCC1CommandLine( 4761 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4762 llvm::Triple T(TargetOpts->Triple); 4763 4764 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4765 GenerateMigratorArgs(MigratorOpts, Args, SA); 4766 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4767 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4768 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4769 GenerateTargetArgs(*TargetOpts, Args, SA); 4770 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4771 GenerateLangArgs(*LangOpts, Args, SA, T); 4772 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4773 &*LangOpts); 4774 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4775 CodeGenOpts); 4776 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4777 FrontendOpts.ProgramAction); 4778 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4779 } 4780 4781 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4782 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4783 DiagnosticsEngine &Diags) { 4784 return createVFSFromCompilerInvocation(CI, Diags, 4785 llvm::vfs::getRealFileSystem()); 4786 } 4787 4788 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4789 clang::createVFSFromCompilerInvocation( 4790 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4791 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4792 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4793 return BaseFS; 4794 4795 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4796 // earlier vfs files are on the bottom 4797 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4798 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4799 Result->getBufferForFile(File); 4800 if (!Buffer) { 4801 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4802 continue; 4803 } 4804 4805 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4806 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4807 /*DiagContext*/ nullptr, Result); 4808 if (!FS) { 4809 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4810 continue; 4811 } 4812 4813 Result = FS; 4814 } 4815 return Result; 4816 } 4817