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/Diagnostic.h" 16 #include "clang/Basic/DiagnosticDriver.h" 17 #include "clang/Basic/DiagnosticOptions.h" 18 #include "clang/Basic/FileSystemOptions.h" 19 #include "clang/Basic/LLVM.h" 20 #include "clang/Basic/LangOptions.h" 21 #include "clang/Basic/LangStandard.h" 22 #include "clang/Basic/ObjCRuntime.h" 23 #include "clang/Basic/Sanitizers.h" 24 #include "clang/Basic/SourceLocation.h" 25 #include "clang/Basic/TargetOptions.h" 26 #include "clang/Basic/Version.h" 27 #include "clang/Basic/Visibility.h" 28 #include "clang/Basic/XRayInstr.h" 29 #include "clang/Config/config.h" 30 #include "clang/Driver/Driver.h" 31 #include "clang/Driver/DriverDiagnostic.h" 32 #include "clang/Driver/Options.h" 33 #include "clang/Frontend/CommandLineSourceLoc.h" 34 #include "clang/Frontend/DependencyOutputOptions.h" 35 #include "clang/Frontend/FrontendDiagnostic.h" 36 #include "clang/Frontend/FrontendOptions.h" 37 #include "clang/Frontend/FrontendPluginRegistry.h" 38 #include "clang/Frontend/MigratorOptions.h" 39 #include "clang/Frontend/PreprocessorOutputOptions.h" 40 #include "clang/Frontend/TextDiagnosticBuffer.h" 41 #include "clang/Frontend/Utils.h" 42 #include "clang/Lex/HeaderSearchOptions.h" 43 #include "clang/Lex/PreprocessorOptions.h" 44 #include "clang/Sema/CodeCompleteOptions.h" 45 #include "clang/Serialization/ASTBitCodes.h" 46 #include "clang/Serialization/ModuleFileExtension.h" 47 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 48 #include "llvm/ADT/APInt.h" 49 #include "llvm/ADT/ArrayRef.h" 50 #include "llvm/ADT/CachedHashString.h" 51 #include "llvm/ADT/FloatingPointMode.h" 52 #include "llvm/ADT/Hashing.h" 53 #include "llvm/ADT/STLExtras.h" 54 #include "llvm/ADT/SmallString.h" 55 #include "llvm/ADT/SmallVector.h" 56 #include "llvm/ADT/StringRef.h" 57 #include "llvm/ADT/StringSwitch.h" 58 #include "llvm/ADT/Twine.h" 59 #include "llvm/Config/llvm-config.h" 60 #include "llvm/Frontend/Debug/Options.h" 61 #include "llvm/IR/DebugInfoMetadata.h" 62 #include "llvm/Linker/Linker.h" 63 #include "llvm/MC/MCTargetOptions.h" 64 #include "llvm/Option/Arg.h" 65 #include "llvm/Option/ArgList.h" 66 #include "llvm/Option/OptSpecifier.h" 67 #include "llvm/Option/OptTable.h" 68 #include "llvm/Option/Option.h" 69 #include "llvm/ProfileData/InstrProfReader.h" 70 #include "llvm/Remarks/HotnessThresholdParser.h" 71 #include "llvm/Support/CodeGen.h" 72 #include "llvm/Support/Compiler.h" 73 #include "llvm/Support/Error.h" 74 #include "llvm/Support/ErrorHandling.h" 75 #include "llvm/Support/ErrorOr.h" 76 #include "llvm/Support/FileSystem.h" 77 #include "llvm/Support/HashBuilder.h" 78 #include "llvm/Support/MathExtras.h" 79 #include "llvm/Support/MemoryBuffer.h" 80 #include "llvm/Support/Path.h" 81 #include "llvm/Support/Process.h" 82 #include "llvm/Support/Regex.h" 83 #include "llvm/Support/VersionTuple.h" 84 #include "llvm/Support/VirtualFileSystem.h" 85 #include "llvm/Support/raw_ostream.h" 86 #include "llvm/Target/TargetOptions.h" 87 #include "llvm/TargetParser/Host.h" 88 #include "llvm/TargetParser/Triple.h" 89 #include <algorithm> 90 #include <atomic> 91 #include <cassert> 92 #include <cstddef> 93 #include <cstring> 94 #include <ctime> 95 #include <fstream> 96 #include <limits> 97 #include <memory> 98 #include <optional> 99 #include <string> 100 #include <tuple> 101 #include <type_traits> 102 #include <utility> 103 #include <vector> 104 105 using namespace clang; 106 using namespace driver; 107 using namespace options; 108 using namespace llvm::opt; 109 110 //===----------------------------------------------------------------------===// 111 // Helpers. 112 //===----------------------------------------------------------------------===// 113 114 // Parse misexpect tolerance argument value. 115 // Valid option values are integers in the range [0, 100) 116 static Expected<std::optional<uint32_t>> parseToleranceOption(StringRef Arg) { 117 uint32_t Val; 118 if (Arg.getAsInteger(10, Val)) 119 return llvm::createStringError(llvm::inconvertibleErrorCode(), 120 "Not an integer: %s", Arg.data()); 121 return Val; 122 } 123 124 //===----------------------------------------------------------------------===// 125 // Initialization. 126 //===----------------------------------------------------------------------===// 127 128 namespace { 129 template <class T> std::shared_ptr<T> make_shared_copy(const T &X) { 130 return std::make_shared<T>(X); 131 } 132 133 template <class T> 134 llvm::IntrusiveRefCntPtr<T> makeIntrusiveRefCntCopy(const T &X) { 135 return llvm::makeIntrusiveRefCnt<T>(X); 136 } 137 } // namespace 138 139 CompilerInvocationBase::CompilerInvocationBase() 140 : LangOpts(std::make_shared<LangOptions>()), 141 TargetOpts(std::make_shared<TargetOptions>()), 142 DiagnosticOpts(llvm::makeIntrusiveRefCnt<DiagnosticOptions>()), 143 HSOpts(std::make_shared<HeaderSearchOptions>()), 144 PPOpts(std::make_shared<PreprocessorOptions>()), 145 AnalyzerOpts(llvm::makeIntrusiveRefCnt<AnalyzerOptions>()), 146 MigratorOpts(std::make_shared<MigratorOptions>()), 147 APINotesOpts(std::make_shared<APINotesOptions>()), 148 CodeGenOpts(std::make_shared<CodeGenOptions>()), 149 FSOpts(std::make_shared<FileSystemOptions>()), 150 FrontendOpts(std::make_shared<FrontendOptions>()), 151 DependencyOutputOpts(std::make_shared<DependencyOutputOptions>()), 152 PreprocessorOutputOpts(std::make_shared<PreprocessorOutputOptions>()) {} 153 154 CompilerInvocationBase & 155 CompilerInvocationBase::deep_copy_assign(const CompilerInvocationBase &X) { 156 if (this != &X) { 157 LangOpts = make_shared_copy(X.getLangOpts()); 158 TargetOpts = make_shared_copy(X.getTargetOpts()); 159 DiagnosticOpts = makeIntrusiveRefCntCopy(X.getDiagnosticOpts()); 160 HSOpts = make_shared_copy(X.getHeaderSearchOpts()); 161 PPOpts = make_shared_copy(X.getPreprocessorOpts()); 162 AnalyzerOpts = makeIntrusiveRefCntCopy(X.getAnalyzerOpts()); 163 MigratorOpts = make_shared_copy(X.getMigratorOpts()); 164 APINotesOpts = make_shared_copy(X.getAPINotesOpts()); 165 CodeGenOpts = make_shared_copy(X.getCodeGenOpts()); 166 FSOpts = make_shared_copy(X.getFileSystemOpts()); 167 FrontendOpts = make_shared_copy(X.getFrontendOpts()); 168 DependencyOutputOpts = make_shared_copy(X.getDependencyOutputOpts()); 169 PreprocessorOutputOpts = make_shared_copy(X.getPreprocessorOutputOpts()); 170 } 171 return *this; 172 } 173 174 CompilerInvocationBase & 175 CompilerInvocationBase::shallow_copy_assign(const CompilerInvocationBase &X) { 176 if (this != &X) { 177 LangOpts = X.LangOpts; 178 TargetOpts = X.TargetOpts; 179 DiagnosticOpts = X.DiagnosticOpts; 180 HSOpts = X.HSOpts; 181 PPOpts = X.PPOpts; 182 AnalyzerOpts = X.AnalyzerOpts; 183 MigratorOpts = X.MigratorOpts; 184 APINotesOpts = X.APINotesOpts; 185 CodeGenOpts = X.CodeGenOpts; 186 FSOpts = X.FSOpts; 187 FrontendOpts = X.FrontendOpts; 188 DependencyOutputOpts = X.DependencyOutputOpts; 189 PreprocessorOutputOpts = X.PreprocessorOutputOpts; 190 } 191 return *this; 192 } 193 194 CompilerInvocation::CompilerInvocation(const CowCompilerInvocation &X) 195 : CompilerInvocationBase(EmptyConstructor{}) { 196 CompilerInvocationBase::deep_copy_assign(X); 197 } 198 199 CompilerInvocation & 200 CompilerInvocation::operator=(const CowCompilerInvocation &X) { 201 CompilerInvocationBase::deep_copy_assign(X); 202 return *this; 203 } 204 205 namespace { 206 template <typename T> 207 T &ensureOwned(std::shared_ptr<T> &Storage) { 208 if (Storage.use_count() > 1) 209 Storage = std::make_shared<T>(*Storage); 210 return *Storage; 211 } 212 213 template <typename T> 214 T &ensureOwned(llvm::IntrusiveRefCntPtr<T> &Storage) { 215 if (Storage.useCount() > 1) 216 Storage = llvm::makeIntrusiveRefCnt<T>(*Storage); 217 return *Storage; 218 } 219 } // namespace 220 221 LangOptions &CowCompilerInvocation::getMutLangOpts() { 222 return ensureOwned(LangOpts); 223 } 224 225 TargetOptions &CowCompilerInvocation::getMutTargetOpts() { 226 return ensureOwned(TargetOpts); 227 } 228 229 DiagnosticOptions &CowCompilerInvocation::getMutDiagnosticOpts() { 230 return ensureOwned(DiagnosticOpts); 231 } 232 233 HeaderSearchOptions &CowCompilerInvocation::getMutHeaderSearchOpts() { 234 return ensureOwned(HSOpts); 235 } 236 237 PreprocessorOptions &CowCompilerInvocation::getMutPreprocessorOpts() { 238 return ensureOwned(PPOpts); 239 } 240 241 AnalyzerOptions &CowCompilerInvocation::getMutAnalyzerOpts() { 242 return ensureOwned(AnalyzerOpts); 243 } 244 245 MigratorOptions &CowCompilerInvocation::getMutMigratorOpts() { 246 return ensureOwned(MigratorOpts); 247 } 248 249 APINotesOptions &CowCompilerInvocation::getMutAPINotesOpts() { 250 return ensureOwned(APINotesOpts); 251 } 252 253 CodeGenOptions &CowCompilerInvocation::getMutCodeGenOpts() { 254 return ensureOwned(CodeGenOpts); 255 } 256 257 FileSystemOptions &CowCompilerInvocation::getMutFileSystemOpts() { 258 return ensureOwned(FSOpts); 259 } 260 261 FrontendOptions &CowCompilerInvocation::getMutFrontendOpts() { 262 return ensureOwned(FrontendOpts); 263 } 264 265 DependencyOutputOptions &CowCompilerInvocation::getMutDependencyOutputOpts() { 266 return ensureOwned(DependencyOutputOpts); 267 } 268 269 PreprocessorOutputOptions & 270 CowCompilerInvocation::getMutPreprocessorOutputOpts() { 271 return ensureOwned(PreprocessorOutputOpts); 272 } 273 274 //===----------------------------------------------------------------------===// 275 // Normalizers 276 //===----------------------------------------------------------------------===// 277 278 using ArgumentConsumer = CompilerInvocation::ArgumentConsumer; 279 280 #define SIMPLE_ENUM_VALUE_TABLE 281 #include "clang/Driver/Options.inc" 282 #undef SIMPLE_ENUM_VALUE_TABLE 283 284 static std::optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 285 unsigned TableIndex, 286 const ArgList &Args, 287 DiagnosticsEngine &Diags) { 288 if (Args.hasArg(Opt)) 289 return true; 290 return std::nullopt; 291 } 292 293 static std::optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, 294 unsigned, 295 const ArgList &Args, 296 DiagnosticsEngine &) { 297 if (Args.hasArg(Opt)) 298 return false; 299 return std::nullopt; 300 } 301 302 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 303 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 304 /// unnecessary template instantiations and just ignore it with a variadic 305 /// argument. 306 static void denormalizeSimpleFlag(ArgumentConsumer Consumer, 307 const Twine &Spelling, Option::OptionClass, 308 unsigned, /*T*/...) { 309 Consumer(Spelling); 310 } 311 312 template <typename T> static constexpr bool is_uint64_t_convertible() { 313 return !std::is_same_v<T, uint64_t> && llvm::is_integral_or_enum<T>::value; 314 } 315 316 template <typename T, 317 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 318 static auto makeFlagToValueNormalizer(T Value) { 319 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 320 DiagnosticsEngine &) -> std::optional<T> { 321 if (Args.hasArg(Opt)) 322 return Value; 323 return std::nullopt; 324 }; 325 } 326 327 template <typename T, 328 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 329 static auto makeFlagToValueNormalizer(T Value) { 330 return makeFlagToValueNormalizer(uint64_t(Value)); 331 } 332 333 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 334 OptSpecifier OtherOpt) { 335 return [Value, OtherValue, 336 OtherOpt](OptSpecifier Opt, unsigned, const ArgList &Args, 337 DiagnosticsEngine &) -> std::optional<bool> { 338 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 339 return A->getOption().matches(Opt) ? Value : OtherValue; 340 } 341 return std::nullopt; 342 }; 343 } 344 345 static auto makeBooleanOptionDenormalizer(bool Value) { 346 return [Value](ArgumentConsumer Consumer, const Twine &Spelling, 347 Option::OptionClass, unsigned, bool KeyPath) { 348 if (KeyPath == Value) 349 Consumer(Spelling); 350 }; 351 } 352 353 static void denormalizeStringImpl(ArgumentConsumer Consumer, 354 const Twine &Spelling, 355 Option::OptionClass OptClass, unsigned, 356 const Twine &Value) { 357 switch (OptClass) { 358 case Option::SeparateClass: 359 case Option::JoinedOrSeparateClass: 360 case Option::JoinedAndSeparateClass: 361 Consumer(Spelling); 362 Consumer(Value); 363 break; 364 case Option::JoinedClass: 365 case Option::CommaJoinedClass: 366 Consumer(Spelling + Value); 367 break; 368 default: 369 llvm_unreachable("Cannot denormalize an option with option class " 370 "incompatible with string denormalization."); 371 } 372 } 373 374 template <typename T> 375 static void denormalizeString(ArgumentConsumer Consumer, const Twine &Spelling, 376 Option::OptionClass OptClass, unsigned TableIndex, 377 T Value) { 378 denormalizeStringImpl(Consumer, Spelling, OptClass, TableIndex, Twine(Value)); 379 } 380 381 static std::optional<SimpleEnumValue> 382 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 383 for (int I = 0, E = Table.Size; I != E; ++I) 384 if (Name == Table.Table[I].Name) 385 return Table.Table[I]; 386 387 return std::nullopt; 388 } 389 390 static std::optional<SimpleEnumValue> 391 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 392 for (int I = 0, E = Table.Size; I != E; ++I) 393 if (Value == Table.Table[I].Value) 394 return Table.Table[I]; 395 396 return std::nullopt; 397 } 398 399 static std::optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 400 unsigned TableIndex, 401 const ArgList &Args, 402 DiagnosticsEngine &Diags) { 403 assert(TableIndex < SimpleEnumValueTablesSize); 404 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 405 406 auto *Arg = Args.getLastArg(Opt); 407 if (!Arg) 408 return std::nullopt; 409 410 StringRef ArgValue = Arg->getValue(); 411 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 412 return MaybeEnumVal->Value; 413 414 Diags.Report(diag::err_drv_invalid_value) 415 << Arg->getAsString(Args) << ArgValue; 416 return std::nullopt; 417 } 418 419 static void denormalizeSimpleEnumImpl(ArgumentConsumer Consumer, 420 const Twine &Spelling, 421 Option::OptionClass OptClass, 422 unsigned TableIndex, unsigned Value) { 423 assert(TableIndex < SimpleEnumValueTablesSize); 424 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 425 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 426 denormalizeString(Consumer, Spelling, OptClass, TableIndex, 427 MaybeEnumVal->Name); 428 } else { 429 llvm_unreachable("The simple enum value was not correctly defined in " 430 "the tablegen option description"); 431 } 432 } 433 434 template <typename T> 435 static void denormalizeSimpleEnum(ArgumentConsumer Consumer, 436 const Twine &Spelling, 437 Option::OptionClass OptClass, 438 unsigned TableIndex, T Value) { 439 return denormalizeSimpleEnumImpl(Consumer, Spelling, OptClass, TableIndex, 440 static_cast<unsigned>(Value)); 441 } 442 443 static std::optional<std::string> normalizeString(OptSpecifier Opt, 444 int TableIndex, 445 const ArgList &Args, 446 DiagnosticsEngine &Diags) { 447 auto *Arg = Args.getLastArg(Opt); 448 if (!Arg) 449 return std::nullopt; 450 return std::string(Arg->getValue()); 451 } 452 453 template <typename IntTy> 454 static std::optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 455 const ArgList &Args, 456 DiagnosticsEngine &Diags) { 457 auto *Arg = Args.getLastArg(Opt); 458 if (!Arg) 459 return std::nullopt; 460 IntTy Res; 461 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 462 Diags.Report(diag::err_drv_invalid_int_value) 463 << Arg->getAsString(Args) << Arg->getValue(); 464 return std::nullopt; 465 } 466 return Res; 467 } 468 469 static std::optional<std::vector<std::string>> 470 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 471 DiagnosticsEngine &) { 472 return Args.getAllArgValues(Opt); 473 } 474 475 static void denormalizeStringVector(ArgumentConsumer Consumer, 476 const Twine &Spelling, 477 Option::OptionClass OptClass, 478 unsigned TableIndex, 479 const std::vector<std::string> &Values) { 480 switch (OptClass) { 481 case Option::CommaJoinedClass: { 482 std::string CommaJoinedValue; 483 if (!Values.empty()) { 484 CommaJoinedValue.append(Values.front()); 485 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 486 CommaJoinedValue.append(","); 487 CommaJoinedValue.append(Value); 488 } 489 } 490 denormalizeString(Consumer, Spelling, Option::OptionClass::JoinedClass, 491 TableIndex, CommaJoinedValue); 492 break; 493 } 494 case Option::JoinedClass: 495 case Option::SeparateClass: 496 case Option::JoinedOrSeparateClass: 497 for (const std::string &Value : Values) 498 denormalizeString(Consumer, Spelling, OptClass, TableIndex, Value); 499 break; 500 default: 501 llvm_unreachable("Cannot denormalize an option with option class " 502 "incompatible with string vector denormalization."); 503 } 504 } 505 506 static std::optional<std::string> normalizeTriple(OptSpecifier Opt, 507 int TableIndex, 508 const ArgList &Args, 509 DiagnosticsEngine &Diags) { 510 auto *Arg = Args.getLastArg(Opt); 511 if (!Arg) 512 return std::nullopt; 513 return llvm::Triple::normalize(Arg->getValue()); 514 } 515 516 template <typename T, typename U> 517 static T mergeForwardValue(T KeyPath, U Value) { 518 return static_cast<T>(Value); 519 } 520 521 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 522 return KeyPath | Value; 523 } 524 525 template <typename T> static T extractForwardValue(T KeyPath) { 526 return KeyPath; 527 } 528 529 template <typename T, typename U, U Value> 530 static T extractMaskValue(T KeyPath) { 531 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 532 } 533 534 #define PARSE_OPTION_WITH_MARSHALLING( \ 535 ARGS, DIAGS, PREFIX_TYPE, SPELLING, ID, KIND, GROUP, ALIAS, ALIASARGS, \ 536 FLAGS, VISIBILITY, PARAM, HELPTEXT, HELPTEXTSFORVARIANTS, METAVAR, VALUES, \ 537 SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, IMPLIED_CHECK, \ 538 IMPLIED_VALUE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX) \ 539 if ((VISIBILITY) & options::CC1Option) { \ 540 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 541 if (IMPLIED_CHECK) \ 542 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 543 if (SHOULD_PARSE) \ 544 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 545 KEYPATH = \ 546 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 547 } 548 549 // Capture the extracted value as a lambda argument to avoid potential issues 550 // with lifetime extension of the reference. 551 #define GENERATE_OPTION_WITH_MARSHALLING( \ 552 CONSUMER, PREFIX_TYPE, SPELLING, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, \ 553 VISIBILITY, PARAM, HELPTEXT, HELPTEXTSFORVARIANTS, METAVAR, VALUES, \ 554 SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, IMPLIED_CHECK, \ 555 IMPLIED_VALUE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX) \ 556 if ((VISIBILITY) & options::CC1Option) { \ 557 [&](const auto &Extracted) { \ 558 if (ALWAYS_EMIT || \ 559 (Extracted != \ 560 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 561 : (DEFAULT_VALUE)))) \ 562 DENORMALIZER(CONSUMER, SPELLING, Option::KIND##Class, TABLE_INDEX, \ 563 Extracted); \ 564 }(EXTRACTOR(KEYPATH)); \ 565 } 566 567 static StringRef GetInputKindName(InputKind IK); 568 569 static bool FixupInvocation(CompilerInvocation &Invocation, 570 DiagnosticsEngine &Diags, const ArgList &Args, 571 InputKind IK) { 572 unsigned NumErrorsBefore = Diags.getNumErrors(); 573 574 LangOptions &LangOpts = Invocation.getLangOpts(); 575 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 576 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 577 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 578 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 579 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 580 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 581 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 582 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 583 if (FrontendOpts.ShowStats) 584 CodeGenOpts.ClearASTBeforeBackend = false; 585 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 586 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 587 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 588 LangOpts.CurrentModule = LangOpts.ModuleName; 589 590 llvm::Triple T(TargetOpts.Triple); 591 llvm::Triple::ArchType Arch = T.getArch(); 592 593 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 594 CodeGenOpts.LargeDataThreshold = TargetOpts.LargeDataThreshold; 595 596 if (LangOpts.getExceptionHandling() != 597 LangOptions::ExceptionHandlingKind::None && 598 T.isWindowsMSVCEnvironment()) 599 Diags.Report(diag::err_fe_invalid_exception_model) 600 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 601 602 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 603 Diags.Report(diag::warn_c_kext); 604 605 if (LangOpts.NewAlignOverride && 606 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 607 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 608 Diags.Report(diag::err_fe_invalid_alignment) 609 << A->getAsString(Args) << A->getValue(); 610 LangOpts.NewAlignOverride = 0; 611 } 612 613 // The -f[no-]raw-string-literals option is only valid in C and in C++ 614 // standards before C++11. 615 if (LangOpts.CPlusPlus11) { 616 if (Args.hasArg(OPT_fraw_string_literals, OPT_fno_raw_string_literals)) { 617 Args.claimAllArgs(OPT_fraw_string_literals, OPT_fno_raw_string_literals); 618 Diags.Report(diag::warn_drv_fraw_string_literals_in_cxx11) 619 << bool(LangOpts.RawStringLiterals); 620 } 621 622 // Do not allow disabling raw string literals in C++11 or later. 623 LangOpts.RawStringLiterals = true; 624 } 625 626 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 627 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 628 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 629 << "-fsycl-is-host"; 630 631 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 632 Diags.Report(diag::err_drv_argument_not_allowed_with) 633 << "-fgnu89-inline" << GetInputKindName(IK); 634 635 if (Args.hasArg(OPT_hlsl_entrypoint) && !LangOpts.HLSL) 636 Diags.Report(diag::err_drv_argument_not_allowed_with) 637 << "-hlsl-entry" << GetInputKindName(IK); 638 639 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 640 Diags.Report(diag::warn_ignored_hip_only_option) 641 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 642 643 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 644 Diags.Report(diag::warn_ignored_hip_only_option) 645 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 646 647 // When these options are used, the compiler is allowed to apply 648 // optimizations that may affect the final result. For example 649 // (x+y)+z is transformed to x+(y+z) but may not give the same 650 // final result; it's not value safe. 651 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF 652 // or NaN. Final result may then differ. An error is issued when the eval 653 // method is set with one of these options. 654 if (Args.hasArg(OPT_ffp_eval_method_EQ)) { 655 if (LangOpts.ApproxFunc) 656 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 0; 657 if (LangOpts.AllowFPReassoc) 658 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 1; 659 if (LangOpts.AllowRecip) 660 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 2; 661 } 662 663 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 664 // This option should be deprecated for CL > 1.0 because 665 // this option was added for compatibility with OpenCL 1.0. 666 if (Args.getLastArg(OPT_cl_strict_aliasing) && 667 (LangOpts.getOpenCLCompatibleVersion() > 100)) 668 Diags.Report(diag::warn_option_invalid_ocl_version) 669 << LangOpts.getOpenCLVersionString() 670 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 671 672 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 673 auto DefaultCC = LangOpts.getDefaultCallingConv(); 674 675 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 676 DefaultCC == LangOptions::DCC_StdCall) && 677 Arch != llvm::Triple::x86; 678 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 679 DefaultCC == LangOptions::DCC_RegCall) && 680 !T.isX86(); 681 emitError |= DefaultCC == LangOptions::DCC_RtdCall && Arch != llvm::Triple::m68k; 682 if (emitError) 683 Diags.Report(diag::err_drv_argument_not_allowed_with) 684 << A->getSpelling() << T.getTriple(); 685 } 686 687 return Diags.getNumErrors() == NumErrorsBefore; 688 } 689 690 //===----------------------------------------------------------------------===// 691 // Deserialization (from args) 692 //===----------------------------------------------------------------------===// 693 694 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 695 DiagnosticsEngine &Diags) { 696 unsigned DefaultOpt = 0; 697 if ((IK.getLanguage() == Language::OpenCL || 698 IK.getLanguage() == Language::OpenCLCXX) && 699 !Args.hasArg(OPT_cl_opt_disable)) 700 DefaultOpt = 2; 701 702 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 703 if (A->getOption().matches(options::OPT_O0)) 704 return 0; 705 706 if (A->getOption().matches(options::OPT_Ofast)) 707 return 3; 708 709 assert(A->getOption().matches(options::OPT_O)); 710 711 StringRef S(A->getValue()); 712 if (S == "s" || S == "z") 713 return 2; 714 715 if (S == "g") 716 return 1; 717 718 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 719 } 720 721 return DefaultOpt; 722 } 723 724 static unsigned getOptimizationLevelSize(ArgList &Args) { 725 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 726 if (A->getOption().matches(options::OPT_O)) { 727 switch (A->getValue()[0]) { 728 default: 729 return 0; 730 case 's': 731 return 1; 732 case 'z': 733 return 2; 734 } 735 } 736 } 737 return 0; 738 } 739 740 static void GenerateArg(ArgumentConsumer Consumer, 741 llvm::opt::OptSpecifier OptSpecifier) { 742 Option Opt = getDriverOptTable().getOption(OptSpecifier); 743 denormalizeSimpleFlag(Consumer, Opt.getPrefixedName(), 744 Option::OptionClass::FlagClass, 0); 745 } 746 747 static void GenerateArg(ArgumentConsumer Consumer, 748 llvm::opt::OptSpecifier OptSpecifier, 749 const Twine &Value) { 750 Option Opt = getDriverOptTable().getOption(OptSpecifier); 751 denormalizeString(Consumer, Opt.getPrefixedName(), Opt.getKind(), 0, Value); 752 } 753 754 // Parse command line arguments into CompilerInvocation. 755 using ParseFn = 756 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 757 DiagnosticsEngine &, const char *)>; 758 759 // Generate command line arguments from CompilerInvocation. 760 using GenerateFn = llvm::function_ref<void( 761 CompilerInvocation &, SmallVectorImpl<const char *> &, 762 CompilerInvocation::StringAllocator)>; 763 764 /// May perform round-trip of command line arguments. By default, the round-trip 765 /// is enabled in assert builds. This can be overwritten at run-time via the 766 /// "-round-trip-args" and "-no-round-trip-args" command line flags, or via the 767 /// ForceRoundTrip parameter. 768 /// 769 /// During round-trip, the command line arguments are parsed into a dummy 770 /// CompilerInvocation, which is used to generate the command line arguments 771 /// again. The real CompilerInvocation is then created by parsing the generated 772 /// arguments, not the original ones. This (in combination with tests covering 773 /// argument behavior) ensures the generated command line is complete (doesn't 774 /// drop/mangle any arguments). 775 /// 776 /// Finally, we check the command line that was used to create the real 777 /// CompilerInvocation instance. By default, we compare it to the command line 778 /// the real CompilerInvocation generates. This checks whether the generator is 779 /// deterministic. If \p CheckAgainstOriginalInvocation is enabled, we instead 780 /// compare it to the original command line to verify the original command-line 781 /// was canonical and can round-trip exactly. 782 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 783 CompilerInvocation &RealInvocation, 784 CompilerInvocation &DummyInvocation, 785 ArrayRef<const char *> CommandLineArgs, 786 DiagnosticsEngine &Diags, const char *Argv0, 787 bool CheckAgainstOriginalInvocation = false, 788 bool ForceRoundTrip = false) { 789 #ifndef NDEBUG 790 bool DoRoundTripDefault = true; 791 #else 792 bool DoRoundTripDefault = false; 793 #endif 794 795 bool DoRoundTrip = DoRoundTripDefault; 796 if (ForceRoundTrip) { 797 DoRoundTrip = true; 798 } else { 799 for (const auto *Arg : CommandLineArgs) { 800 if (Arg == StringRef("-round-trip-args")) 801 DoRoundTrip = true; 802 if (Arg == StringRef("-no-round-trip-args")) 803 DoRoundTrip = false; 804 } 805 } 806 807 // If round-trip was not requested, simply run the parser with the real 808 // invocation diagnostics. 809 if (!DoRoundTrip) 810 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 811 812 // Serializes quoted (and potentially escaped) arguments. 813 auto SerializeArgs = [](ArrayRef<const char *> Args) { 814 std::string Buffer; 815 llvm::raw_string_ostream OS(Buffer); 816 for (const char *Arg : Args) { 817 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 818 OS << ' '; 819 } 820 OS.flush(); 821 return Buffer; 822 }; 823 824 // Setup a dummy DiagnosticsEngine. 825 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 826 DummyDiags.setClient(new TextDiagnosticBuffer()); 827 828 // Run the first parse on the original arguments with the dummy invocation and 829 // diagnostics. 830 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 831 DummyDiags.getNumWarnings() != 0) { 832 // If the first parse did not succeed, it must be user mistake (invalid 833 // command line arguments). We won't be able to generate arguments that 834 // would reproduce the same result. Let's fail again with the real 835 // invocation and diagnostics, so all side-effects of parsing are visible. 836 unsigned NumWarningsBefore = Diags.getNumWarnings(); 837 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 838 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 839 return Success; 840 841 // Parse with original options and diagnostics succeeded even though it 842 // shouldn't have. Something is off. 843 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 844 Diags.Report(diag::note_cc1_round_trip_original) 845 << SerializeArgs(CommandLineArgs); 846 return false; 847 } 848 849 // Setup string allocator. 850 llvm::BumpPtrAllocator Alloc; 851 llvm::StringSaver StringPool(Alloc); 852 auto SA = [&StringPool](const Twine &Arg) { 853 return StringPool.save(Arg).data(); 854 }; 855 856 // Generate arguments from the dummy invocation. If Generate is the 857 // inverse of Parse, the newly generated arguments must have the same 858 // semantics as the original. 859 SmallVector<const char *> GeneratedArgs; 860 Generate(DummyInvocation, GeneratedArgs, SA); 861 862 // Run the second parse, now on the generated arguments, and with the real 863 // invocation and diagnostics. The result is what we will end up using for the 864 // rest of compilation, so if Generate is not inverse of Parse, something down 865 // the line will break. 866 bool Success2 = Parse(RealInvocation, GeneratedArgs, Diags, Argv0); 867 868 // The first parse on original arguments succeeded, but second parse of 869 // generated arguments failed. Something must be wrong with the generator. 870 if (!Success2) { 871 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 872 Diags.Report(diag::note_cc1_round_trip_generated) 873 << 1 << SerializeArgs(GeneratedArgs); 874 return false; 875 } 876 877 SmallVector<const char *> ComparisonArgs; 878 if (CheckAgainstOriginalInvocation) 879 // Compare against original arguments. 880 ComparisonArgs.assign(CommandLineArgs.begin(), CommandLineArgs.end()); 881 else 882 // Generate arguments again, this time from the options we will end up using 883 // for the rest of the compilation. 884 Generate(RealInvocation, ComparisonArgs, SA); 885 886 // Compares two lists of arguments. 887 auto Equal = [](const ArrayRef<const char *> A, 888 const ArrayRef<const char *> B) { 889 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 890 [](const char *AElem, const char *BElem) { 891 return StringRef(AElem) == StringRef(BElem); 892 }); 893 }; 894 895 // If we generated different arguments from what we assume are two 896 // semantically equivalent CompilerInvocations, the Generate function may 897 // be non-deterministic. 898 if (!Equal(GeneratedArgs, ComparisonArgs)) { 899 Diags.Report(diag::err_cc1_round_trip_mismatch); 900 Diags.Report(diag::note_cc1_round_trip_generated) 901 << 1 << SerializeArgs(GeneratedArgs); 902 Diags.Report(diag::note_cc1_round_trip_generated) 903 << 2 << SerializeArgs(ComparisonArgs); 904 return false; 905 } 906 907 Diags.Report(diag::remark_cc1_round_trip_generated) 908 << 1 << SerializeArgs(GeneratedArgs); 909 Diags.Report(diag::remark_cc1_round_trip_generated) 910 << 2 << SerializeArgs(ComparisonArgs); 911 912 return Success2; 913 } 914 915 bool CompilerInvocation::checkCC1RoundTrip(ArrayRef<const char *> Args, 916 DiagnosticsEngine &Diags, 917 const char *Argv0) { 918 CompilerInvocation DummyInvocation1, DummyInvocation2; 919 return RoundTrip( 920 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 921 DiagnosticsEngine &Diags, const char *Argv0) { 922 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 923 }, 924 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 925 StringAllocator SA) { 926 Args.push_back("-cc1"); 927 Invocation.generateCC1CommandLine(Args, SA); 928 }, 929 DummyInvocation1, DummyInvocation2, Args, Diags, Argv0, 930 /*CheckAgainstOriginalInvocation=*/true, /*ForceRoundTrip=*/true); 931 } 932 933 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 934 OptSpecifier GroupWithValue, 935 std::vector<std::string> &Diagnostics) { 936 for (auto *A : Args.filtered(Group)) { 937 if (A->getOption().getKind() == Option::FlagClass) { 938 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 939 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 940 Diagnostics.push_back( 941 std::string(A->getOption().getName().drop_front(1))); 942 } else if (A->getOption().matches(GroupWithValue)) { 943 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 944 // group. Add only the group name to the diagnostics. 945 Diagnostics.push_back( 946 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 947 } else { 948 // Otherwise, add its value (for OPT_W_Joined and similar). 949 Diagnostics.push_back(A->getValue()); 950 } 951 } 952 } 953 954 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 955 // it won't verify the input. 956 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 957 DiagnosticsEngine *Diags); 958 959 static void getAllNoBuiltinFuncValues(ArgList &Args, 960 std::vector<std::string> &Funcs) { 961 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 962 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 963 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 964 } 965 966 static void GenerateAnalyzerArgs(const AnalyzerOptions &Opts, 967 ArgumentConsumer Consumer) { 968 const AnalyzerOptions *AnalyzerOpts = &Opts; 969 970 #define ANALYZER_OPTION_WITH_MARSHALLING(...) \ 971 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 972 #include "clang/Driver/Options.inc" 973 #undef ANALYZER_OPTION_WITH_MARSHALLING 974 975 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 976 switch (Opts.AnalysisConstraintsOpt) { 977 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 978 case NAME##Model: \ 979 GenerateArg(Consumer, OPT_analyzer_constraints, CMDFLAG); \ 980 break; 981 #include "clang/StaticAnalyzer/Core/Analyses.def" 982 default: 983 llvm_unreachable("Tried to generate unknown analysis constraint."); 984 } 985 } 986 987 if (Opts.AnalysisDiagOpt != PD_HTML) { 988 switch (Opts.AnalysisDiagOpt) { 989 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 990 case PD_##NAME: \ 991 GenerateArg(Consumer, OPT_analyzer_output, CMDFLAG); \ 992 break; 993 #include "clang/StaticAnalyzer/Core/Analyses.def" 994 default: 995 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 996 } 997 } 998 999 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 1000 switch (Opts.AnalysisPurgeOpt) { 1001 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 1002 case NAME: \ 1003 GenerateArg(Consumer, OPT_analyzer_purge, CMDFLAG); \ 1004 break; 1005 #include "clang/StaticAnalyzer/Core/Analyses.def" 1006 default: 1007 llvm_unreachable("Tried to generate unknown analysis purge mode."); 1008 } 1009 } 1010 1011 if (Opts.InliningMode != NoRedundancy) { 1012 switch (Opts.InliningMode) { 1013 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 1014 case NAME: \ 1015 GenerateArg(Consumer, OPT_analyzer_inlining_mode, CMDFLAG); \ 1016 break; 1017 #include "clang/StaticAnalyzer/Core/Analyses.def" 1018 default: 1019 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 1020 } 1021 } 1022 1023 for (const auto &CP : Opts.CheckersAndPackages) { 1024 OptSpecifier Opt = 1025 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 1026 GenerateArg(Consumer, Opt, CP.first); 1027 } 1028 1029 AnalyzerOptions ConfigOpts; 1030 parseAnalyzerConfigs(ConfigOpts, nullptr); 1031 1032 // Sort options by key to avoid relying on StringMap iteration order. 1033 SmallVector<std::pair<StringRef, StringRef>, 4> SortedConfigOpts; 1034 for (const auto &C : Opts.Config) 1035 SortedConfigOpts.emplace_back(C.getKey(), C.getValue()); 1036 llvm::sort(SortedConfigOpts, llvm::less_first()); 1037 1038 for (const auto &[Key, Value] : SortedConfigOpts) { 1039 // Don't generate anything that came from parseAnalyzerConfigs. It would be 1040 // redundant and may not be valid on the command line. 1041 auto Entry = ConfigOpts.Config.find(Key); 1042 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == Value) 1043 continue; 1044 1045 GenerateArg(Consumer, OPT_analyzer_config, Key + "=" + Value); 1046 } 1047 1048 // Nothing to generate for FullCompilerInvocation. 1049 } 1050 1051 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 1052 DiagnosticsEngine &Diags) { 1053 unsigned NumErrorsBefore = Diags.getNumErrors(); 1054 1055 AnalyzerOptions *AnalyzerOpts = &Opts; 1056 1057 #define ANALYZER_OPTION_WITH_MARSHALLING(...) \ 1058 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 1059 #include "clang/Driver/Options.inc" 1060 #undef ANALYZER_OPTION_WITH_MARSHALLING 1061 1062 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 1063 StringRef Name = A->getValue(); 1064 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 1065 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 1066 .Case(CMDFLAG, NAME##Model) 1067 #include "clang/StaticAnalyzer/Core/Analyses.def" 1068 .Default(NumConstraints); 1069 if (Value == NumConstraints) { 1070 Diags.Report(diag::err_drv_invalid_value) 1071 << A->getAsString(Args) << Name; 1072 } else { 1073 #ifndef LLVM_WITH_Z3 1074 if (Value == AnalysisConstraints::Z3ConstraintsModel) { 1075 Diags.Report(diag::err_analyzer_not_built_with_z3); 1076 } 1077 #endif // LLVM_WITH_Z3 1078 Opts.AnalysisConstraintsOpt = Value; 1079 } 1080 } 1081 1082 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 1083 StringRef Name = A->getValue(); 1084 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 1085 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 1086 .Case(CMDFLAG, PD_##NAME) 1087 #include "clang/StaticAnalyzer/Core/Analyses.def" 1088 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 1089 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 1090 Diags.Report(diag::err_drv_invalid_value) 1091 << A->getAsString(Args) << Name; 1092 } else { 1093 Opts.AnalysisDiagOpt = Value; 1094 } 1095 } 1096 1097 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 1098 StringRef Name = A->getValue(); 1099 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 1100 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 1101 .Case(CMDFLAG, NAME) 1102 #include "clang/StaticAnalyzer/Core/Analyses.def" 1103 .Default(NumPurgeModes); 1104 if (Value == NumPurgeModes) { 1105 Diags.Report(diag::err_drv_invalid_value) 1106 << A->getAsString(Args) << Name; 1107 } else { 1108 Opts.AnalysisPurgeOpt = Value; 1109 } 1110 } 1111 1112 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 1113 StringRef Name = A->getValue(); 1114 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 1115 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 1116 .Case(CMDFLAG, NAME) 1117 #include "clang/StaticAnalyzer/Core/Analyses.def" 1118 .Default(NumInliningModes); 1119 if (Value == NumInliningModes) { 1120 Diags.Report(diag::err_drv_invalid_value) 1121 << A->getAsString(Args) << Name; 1122 } else { 1123 Opts.InliningMode = Value; 1124 } 1125 } 1126 1127 Opts.CheckersAndPackages.clear(); 1128 for (const Arg *A : 1129 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 1130 A->claim(); 1131 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 1132 // We can have a list of comma separated checker names, e.g: 1133 // '-analyzer-checker=cocoa,unix' 1134 StringRef CheckerAndPackageList = A->getValue(); 1135 SmallVector<StringRef, 16> CheckersAndPackages; 1136 CheckerAndPackageList.split(CheckersAndPackages, ","); 1137 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 1138 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 1139 IsEnabled); 1140 } 1141 1142 // Go through the analyzer configuration options. 1143 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 1144 1145 // We can have a list of comma separated config names, e.g: 1146 // '-analyzer-config key1=val1,key2=val2' 1147 StringRef configList = A->getValue(); 1148 SmallVector<StringRef, 4> configVals; 1149 configList.split(configVals, ","); 1150 for (const auto &configVal : configVals) { 1151 StringRef key, val; 1152 std::tie(key, val) = configVal.split("="); 1153 if (val.empty()) { 1154 Diags.Report(SourceLocation(), 1155 diag::err_analyzer_config_no_value) << configVal; 1156 break; 1157 } 1158 if (val.contains('=')) { 1159 Diags.Report(SourceLocation(), 1160 diag::err_analyzer_config_multiple_values) 1161 << configVal; 1162 break; 1163 } 1164 1165 // TODO: Check checker options too, possibly in CheckerRegistry. 1166 // Leave unknown non-checker configs unclaimed. 1167 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1168 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1169 Diags.Report(diag::err_analyzer_config_unknown) << key; 1170 continue; 1171 } 1172 1173 A->claim(); 1174 Opts.Config[key] = std::string(val); 1175 } 1176 } 1177 1178 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1179 parseAnalyzerConfigs(Opts, &Diags); 1180 else 1181 parseAnalyzerConfigs(Opts, nullptr); 1182 1183 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1184 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1185 if (i != 0) 1186 os << " "; 1187 os << Args.getArgString(i); 1188 } 1189 os.flush(); 1190 1191 return Diags.getNumErrors() == NumErrorsBefore; 1192 } 1193 1194 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1195 StringRef OptionName, StringRef DefaultVal) { 1196 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1197 } 1198 1199 static void initOption(AnalyzerOptions::ConfigTable &Config, 1200 DiagnosticsEngine *Diags, 1201 StringRef &OptionField, StringRef Name, 1202 StringRef DefaultVal) { 1203 // String options may be known to invalid (e.g. if the expected string is a 1204 // file name, but the file does not exist), those will have to be checked in 1205 // parseConfigs. 1206 OptionField = getStringOption(Config, Name, DefaultVal); 1207 } 1208 1209 static void initOption(AnalyzerOptions::ConfigTable &Config, 1210 DiagnosticsEngine *Diags, 1211 bool &OptionField, StringRef Name, bool DefaultVal) { 1212 auto PossiblyInvalidVal = 1213 llvm::StringSwitch<std::optional<bool>>( 1214 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1215 .Case("true", true) 1216 .Case("false", false) 1217 .Default(std::nullopt); 1218 1219 if (!PossiblyInvalidVal) { 1220 if (Diags) 1221 Diags->Report(diag::err_analyzer_config_invalid_input) 1222 << Name << "a boolean"; 1223 else 1224 OptionField = DefaultVal; 1225 } else 1226 OptionField = *PossiblyInvalidVal; 1227 } 1228 1229 static void initOption(AnalyzerOptions::ConfigTable &Config, 1230 DiagnosticsEngine *Diags, 1231 unsigned &OptionField, StringRef Name, 1232 unsigned DefaultVal) { 1233 1234 OptionField = DefaultVal; 1235 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1236 .getAsInteger(0, OptionField); 1237 if (Diags && HasFailed) 1238 Diags->Report(diag::err_analyzer_config_invalid_input) 1239 << Name << "an unsigned"; 1240 } 1241 1242 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1243 DiagnosticsEngine *Diags) { 1244 // TODO: There's no need to store the entire configtable, it'd be plenty 1245 // enough to store checker options. 1246 1247 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1248 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1249 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...) 1250 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1251 1252 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep"); 1253 const bool InShallowMode = AnOpts.UserMode == "shallow"; 1254 1255 #define ANALYZER_OPTION(...) 1256 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1257 SHALLOW_VAL, DEEP_VAL) \ 1258 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \ 1259 InShallowMode ? SHALLOW_VAL : DEEP_VAL); 1260 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1261 1262 // At this point, AnalyzerOptions is configured. Let's validate some options. 1263 1264 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1265 // The current approach only validates the registered checkers which does not 1266 // contain the runtime enabled checkers and optimally we would validate both. 1267 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1268 std::vector<StringRef> Checkers = 1269 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1270 std::vector<StringRef> Packages = 1271 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1272 1273 SmallVector<StringRef, 16> CheckersAndPackages; 1274 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1275 1276 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1277 if (Diags) { 1278 bool IsChecker = CheckerOrPackage.contains('.'); 1279 bool IsValidName = IsChecker 1280 ? llvm::is_contained(Checkers, CheckerOrPackage) 1281 : llvm::is_contained(Packages, CheckerOrPackage); 1282 1283 if (!IsValidName) 1284 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1285 << CheckerOrPackage; 1286 } 1287 1288 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1289 } 1290 } 1291 1292 if (!Diags) 1293 return; 1294 1295 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1296 Diags->Report(diag::err_analyzer_config_invalid_input) 1297 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1298 1299 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1300 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1301 << "a filename"; 1302 1303 if (!AnOpts.ModelPath.empty() && 1304 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1305 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1306 << "a filename"; 1307 } 1308 1309 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1310 static void 1311 GenerateOptimizationRemark(ArgumentConsumer Consumer, OptSpecifier OptEQ, 1312 StringRef Name, 1313 const CodeGenOptions::OptRemark &Remark) { 1314 if (Remark.hasValidPattern()) { 1315 GenerateArg(Consumer, OptEQ, Remark.Pattern); 1316 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1317 GenerateArg(Consumer, OPT_R_Joined, Name); 1318 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1319 GenerateArg(Consumer, OPT_R_Joined, StringRef("no-") + Name); 1320 } 1321 } 1322 1323 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1324 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1325 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1326 static CodeGenOptions::OptRemark 1327 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1328 OptSpecifier OptEQ, StringRef Name) { 1329 CodeGenOptions::OptRemark Result; 1330 1331 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1332 StringRef Pattern) { 1333 Result.Pattern = Pattern.str(); 1334 1335 std::string RegexError; 1336 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1337 if (!Result.Regex->isValid(RegexError)) { 1338 Diags.Report(diag::err_drv_optimization_remark_pattern) 1339 << RegexError << A->getAsString(Args); 1340 return false; 1341 } 1342 1343 return true; 1344 }; 1345 1346 for (Arg *A : Args) { 1347 if (A->getOption().matches(OPT_R_Joined)) { 1348 StringRef Value = A->getValue(); 1349 1350 if (Value == Name) 1351 Result.Kind = CodeGenOptions::RK_Enabled; 1352 else if (Value == "everything") 1353 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1354 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1355 Result.Kind = CodeGenOptions::RK_Disabled; 1356 else if (Value == "no-everything") 1357 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1358 else 1359 continue; 1360 1361 if (Result.Kind == CodeGenOptions::RK_Disabled || 1362 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1363 Result.Pattern = ""; 1364 Result.Regex = nullptr; 1365 } else { 1366 InitializeResultPattern(A, ".*"); 1367 } 1368 } else if (A->getOption().matches(OptEQ)) { 1369 Result.Kind = CodeGenOptions::RK_WithPattern; 1370 if (!InitializeResultPattern(A, A->getValue())) 1371 return CodeGenOptions::OptRemark(); 1372 } 1373 } 1374 1375 return Result; 1376 } 1377 1378 static bool parseDiagnosticLevelMask(StringRef FlagName, 1379 const std::vector<std::string> &Levels, 1380 DiagnosticsEngine &Diags, 1381 DiagnosticLevelMask &M) { 1382 bool Success = true; 1383 for (const auto &Level : Levels) { 1384 DiagnosticLevelMask const PM = 1385 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1386 .Case("note", DiagnosticLevelMask::Note) 1387 .Case("remark", DiagnosticLevelMask::Remark) 1388 .Case("warning", DiagnosticLevelMask::Warning) 1389 .Case("error", DiagnosticLevelMask::Error) 1390 .Default(DiagnosticLevelMask::None); 1391 if (PM == DiagnosticLevelMask::None) { 1392 Success = false; 1393 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1394 } 1395 M = M | PM; 1396 } 1397 return Success; 1398 } 1399 1400 static void parseSanitizerKinds(StringRef FlagName, 1401 const std::vector<std::string> &Sanitizers, 1402 DiagnosticsEngine &Diags, SanitizerSet &S) { 1403 for (const auto &Sanitizer : Sanitizers) { 1404 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1405 if (K == SanitizerMask()) 1406 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1407 else 1408 S.set(K, true); 1409 } 1410 } 1411 1412 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1413 SmallVector<StringRef, 4> Values; 1414 serializeSanitizerSet(S, Values); 1415 return Values; 1416 } 1417 1418 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1419 ArgList &Args, DiagnosticsEngine &D, 1420 XRayInstrSet &S) { 1421 llvm::SmallVector<StringRef, 2> BundleParts; 1422 llvm::SplitString(Bundle, BundleParts, ","); 1423 for (const auto &B : BundleParts) { 1424 auto Mask = parseXRayInstrValue(B); 1425 if (Mask == XRayInstrKind::None) 1426 if (B != "none") 1427 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1428 else 1429 S.Mask = Mask; 1430 else if (Mask == XRayInstrKind::All) 1431 S.Mask = Mask; 1432 else 1433 S.set(Mask, true); 1434 } 1435 } 1436 1437 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1438 llvm::SmallVector<StringRef, 2> BundleParts; 1439 serializeXRayInstrValue(S, BundleParts); 1440 std::string Buffer; 1441 llvm::raw_string_ostream OS(Buffer); 1442 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1443 return Buffer; 1444 } 1445 1446 // Set the profile kind using fprofile-instrument-use-path. 1447 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1448 const Twine &ProfileName, 1449 llvm::vfs::FileSystem &FS, 1450 DiagnosticsEngine &Diags) { 1451 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName, FS); 1452 if (auto E = ReaderOrErr.takeError()) { 1453 unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, 1454 "Error in reading profile %0: %1"); 1455 llvm::handleAllErrors(std::move(E), [&](const llvm::ErrorInfoBase &EI) { 1456 Diags.Report(DiagID) << ProfileName.str() << EI.message(); 1457 }); 1458 return; 1459 } 1460 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1461 std::move(ReaderOrErr.get()); 1462 // Currently memprof profiles are only added at the IR level. Mark the profile 1463 // type as IR in that case as well and the subsequent matching needs to detect 1464 // which is available (might be one or both). 1465 if (PGOReader->isIRLevelProfile() || PGOReader->hasMemoryProfile()) { 1466 if (PGOReader->hasCSIRLevelProfile()) 1467 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1468 else 1469 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1470 } else 1471 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1472 } 1473 1474 void CompilerInvocation::setDefaultPointerAuthOptions( 1475 PointerAuthOptions &Opts, const LangOptions &LangOpts, 1476 const llvm::Triple &Triple) { 1477 assert(Triple.getArch() == llvm::Triple::aarch64); 1478 if (LangOpts.PointerAuthCalls) { 1479 using Key = PointerAuthSchema::ARM8_3Key; 1480 using Discrimination = PointerAuthSchema::Discrimination; 1481 // If you change anything here, be sure to update <ptrauth.h>. 1482 Opts.FunctionPointers = PointerAuthSchema( 1483 Key::ASIA, false, 1484 LangOpts.PointerAuthFunctionTypeDiscrimination ? Discrimination::Type 1485 : Discrimination::None); 1486 1487 Opts.CXXVTablePointers = PointerAuthSchema( 1488 Key::ASDA, LangOpts.PointerAuthVTPtrAddressDiscrimination, 1489 LangOpts.PointerAuthVTPtrTypeDiscrimination ? Discrimination::Type 1490 : Discrimination::None); 1491 1492 if (LangOpts.PointerAuthTypeInfoVTPtrDiscrimination) 1493 Opts.CXXTypeInfoVTablePointer = 1494 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant, 1495 StdTypeInfoVTablePointerConstantDiscrimination); 1496 else 1497 Opts.CXXTypeInfoVTablePointer = 1498 PointerAuthSchema(Key::ASDA, false, Discrimination::None); 1499 1500 Opts.CXXVTTVTablePointers = 1501 PointerAuthSchema(Key::ASDA, false, Discrimination::None); 1502 Opts.CXXVirtualFunctionPointers = Opts.CXXVirtualVariadicFunctionPointers = 1503 PointerAuthSchema(Key::ASIA, true, Discrimination::Decl); 1504 Opts.CXXMemberFunctionPointers = 1505 PointerAuthSchema(Key::ASIA, false, Discrimination::Type); 1506 } 1507 Opts.IndirectGotos = LangOpts.PointerAuthIndirectGotos; 1508 } 1509 1510 static void parsePointerAuthOptions(PointerAuthOptions &Opts, 1511 const LangOptions &LangOpts, 1512 const llvm::Triple &Triple, 1513 DiagnosticsEngine &Diags) { 1514 if (!LangOpts.PointerAuthCalls && !LangOpts.PointerAuthIndirectGotos) 1515 return; 1516 1517 CompilerInvocation::setDefaultPointerAuthOptions(Opts, LangOpts, Triple); 1518 } 1519 1520 void CompilerInvocationBase::GenerateCodeGenArgs(const CodeGenOptions &Opts, 1521 ArgumentConsumer Consumer, 1522 const llvm::Triple &T, 1523 const std::string &OutputFile, 1524 const LangOptions *LangOpts) { 1525 const CodeGenOptions &CodeGenOpts = Opts; 1526 1527 if (Opts.OptimizationLevel == 0) 1528 GenerateArg(Consumer, OPT_O0); 1529 else 1530 GenerateArg(Consumer, OPT_O, Twine(Opts.OptimizationLevel)); 1531 1532 #define CODEGEN_OPTION_WITH_MARSHALLING(...) \ 1533 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 1534 #include "clang/Driver/Options.inc" 1535 #undef CODEGEN_OPTION_WITH_MARSHALLING 1536 1537 if (Opts.OptimizationLevel > 0) { 1538 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1539 GenerateArg(Consumer, OPT_finline_functions); 1540 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1541 GenerateArg(Consumer, OPT_finline_hint_functions); 1542 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1543 GenerateArg(Consumer, OPT_fno_inline); 1544 } 1545 1546 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1547 GenerateArg(Consumer, OPT_fdirect_access_external_data); 1548 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1549 GenerateArg(Consumer, OPT_fno_direct_access_external_data); 1550 1551 std::optional<StringRef> DebugInfoVal; 1552 switch (Opts.DebugInfo) { 1553 case llvm::codegenoptions::DebugLineTablesOnly: 1554 DebugInfoVal = "line-tables-only"; 1555 break; 1556 case llvm::codegenoptions::DebugDirectivesOnly: 1557 DebugInfoVal = "line-directives-only"; 1558 break; 1559 case llvm::codegenoptions::DebugInfoConstructor: 1560 DebugInfoVal = "constructor"; 1561 break; 1562 case llvm::codegenoptions::LimitedDebugInfo: 1563 DebugInfoVal = "limited"; 1564 break; 1565 case llvm::codegenoptions::FullDebugInfo: 1566 DebugInfoVal = "standalone"; 1567 break; 1568 case llvm::codegenoptions::UnusedTypeInfo: 1569 DebugInfoVal = "unused-types"; 1570 break; 1571 case llvm::codegenoptions::NoDebugInfo: // default value 1572 DebugInfoVal = std::nullopt; 1573 break; 1574 case llvm::codegenoptions::LocTrackingOnly: // implied value 1575 DebugInfoVal = std::nullopt; 1576 break; 1577 } 1578 if (DebugInfoVal) 1579 GenerateArg(Consumer, OPT_debug_info_kind_EQ, *DebugInfoVal); 1580 1581 for (const auto &Prefix : Opts.DebugPrefixMap) 1582 GenerateArg(Consumer, OPT_fdebug_prefix_map_EQ, 1583 Prefix.first + "=" + Prefix.second); 1584 1585 for (const auto &Prefix : Opts.CoveragePrefixMap) 1586 GenerateArg(Consumer, OPT_fcoverage_prefix_map_EQ, 1587 Prefix.first + "=" + Prefix.second); 1588 1589 if (Opts.NewStructPathTBAA) 1590 GenerateArg(Consumer, OPT_new_struct_path_tbaa); 1591 1592 if (Opts.OptimizeSize == 1) 1593 GenerateArg(Consumer, OPT_O, "s"); 1594 else if (Opts.OptimizeSize == 2) 1595 GenerateArg(Consumer, OPT_O, "z"); 1596 1597 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1598 // -ffreestanding. We'll consider that when generating them. 1599 1600 // NoBuiltinFuncs are generated by LangOptions. 1601 1602 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1603 GenerateArg(Consumer, OPT_funroll_loops); 1604 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1605 GenerateArg(Consumer, OPT_fno_unroll_loops); 1606 1607 if (!Opts.BinutilsVersion.empty()) 1608 GenerateArg(Consumer, OPT_fbinutils_version_EQ, Opts.BinutilsVersion); 1609 1610 if (Opts.DebugNameTable == 1611 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1612 GenerateArg(Consumer, OPT_ggnu_pubnames); 1613 else if (Opts.DebugNameTable == 1614 static_cast<unsigned>( 1615 llvm::DICompileUnit::DebugNameTableKind::Default)) 1616 GenerateArg(Consumer, OPT_gpubnames); 1617 1618 if (Opts.DebugTemplateAlias) 1619 GenerateArg(Consumer, OPT_gtemplate_alias); 1620 1621 auto TNK = Opts.getDebugSimpleTemplateNames(); 1622 if (TNK != llvm::codegenoptions::DebugTemplateNamesKind::Full) { 1623 if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Simple) 1624 GenerateArg(Consumer, OPT_gsimple_template_names_EQ, "simple"); 1625 else if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Mangled) 1626 GenerateArg(Consumer, OPT_gsimple_template_names_EQ, "mangled"); 1627 } 1628 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1629 // it or PGOUseInstrumentor. 1630 1631 if (Opts.TimePasses) { 1632 if (Opts.TimePassesPerRun) 1633 GenerateArg(Consumer, OPT_ftime_report_EQ, "per-pass-run"); 1634 else 1635 GenerateArg(Consumer, OPT_ftime_report); 1636 } 1637 1638 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1639 GenerateArg(Consumer, OPT_flto_EQ, "full"); 1640 1641 if (Opts.PrepareForThinLTO) 1642 GenerateArg(Consumer, OPT_flto_EQ, "thin"); 1643 1644 if (!Opts.ThinLTOIndexFile.empty()) 1645 GenerateArg(Consumer, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile); 1646 1647 if (Opts.SaveTempsFilePrefix == OutputFile) 1648 GenerateArg(Consumer, OPT_save_temps_EQ, "obj"); 1649 1650 StringRef MemProfileBasename("memprof.profraw"); 1651 if (!Opts.MemoryProfileOutput.empty()) { 1652 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1653 GenerateArg(Consumer, OPT_fmemory_profile); 1654 } else { 1655 size_t ArgLength = 1656 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1657 GenerateArg(Consumer, OPT_fmemory_profile_EQ, 1658 Opts.MemoryProfileOutput.substr(0, ArgLength)); 1659 } 1660 } 1661 1662 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1663 GenerateArg(Consumer, OPT_coverage_version_EQ, 1664 StringRef(Opts.CoverageVersion, 4)); 1665 1666 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1667 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1668 // won't be generated.) 1669 1670 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1671 std::string InstrBundle = 1672 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1673 if (!InstrBundle.empty()) 1674 GenerateArg(Consumer, OPT_fxray_instrumentation_bundle, InstrBundle); 1675 } 1676 1677 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1678 GenerateArg(Consumer, OPT_fcf_protection_EQ, "full"); 1679 else if (Opts.CFProtectionReturn) 1680 GenerateArg(Consumer, OPT_fcf_protection_EQ, "return"); 1681 else if (Opts.CFProtectionBranch) 1682 GenerateArg(Consumer, OPT_fcf_protection_EQ, "branch"); 1683 1684 if (Opts.FunctionReturnThunks) 1685 GenerateArg(Consumer, OPT_mfunction_return_EQ, "thunk-extern"); 1686 1687 for (const auto &F : Opts.LinkBitcodeFiles) { 1688 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1689 F.PropagateAttrs && F.Internalize; 1690 GenerateArg(Consumer, 1691 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1692 F.Filename); 1693 } 1694 1695 if (Opts.EmulatedTLS) 1696 GenerateArg(Consumer, OPT_femulated_tls); 1697 1698 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1699 GenerateArg(Consumer, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str()); 1700 1701 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1702 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1703 GenerateArg(Consumer, OPT_fdenormal_fp_math_f32_EQ, 1704 Opts.FP32DenormalMode.str()); 1705 1706 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1707 OptSpecifier Opt = 1708 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1709 GenerateArg(Consumer, Opt); 1710 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1711 OptSpecifier Opt = 1712 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1713 GenerateArg(Consumer, Opt); 1714 } 1715 1716 if (Opts.EnableAIXExtendedAltivecABI) 1717 GenerateArg(Consumer, OPT_mabi_EQ_vec_extabi); 1718 1719 if (Opts.XCOFFReadOnlyPointers) 1720 GenerateArg(Consumer, OPT_mxcoff_roptr); 1721 1722 if (!Opts.OptRecordPasses.empty()) 1723 GenerateArg(Consumer, OPT_opt_record_passes, Opts.OptRecordPasses); 1724 1725 if (!Opts.OptRecordFormat.empty()) 1726 GenerateArg(Consumer, OPT_opt_record_format, Opts.OptRecordFormat); 1727 1728 GenerateOptimizationRemark(Consumer, OPT_Rpass_EQ, "pass", 1729 Opts.OptimizationRemark); 1730 1731 GenerateOptimizationRemark(Consumer, OPT_Rpass_missed_EQ, "pass-missed", 1732 Opts.OptimizationRemarkMissed); 1733 1734 GenerateOptimizationRemark(Consumer, OPT_Rpass_analysis_EQ, "pass-analysis", 1735 Opts.OptimizationRemarkAnalysis); 1736 1737 GenerateArg(Consumer, OPT_fdiagnostics_hotness_threshold_EQ, 1738 Opts.DiagnosticsHotnessThreshold 1739 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1740 : "auto"); 1741 1742 GenerateArg(Consumer, OPT_fdiagnostics_misexpect_tolerance_EQ, 1743 Twine(*Opts.DiagnosticsMisExpectTolerance)); 1744 1745 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1746 GenerateArg(Consumer, OPT_fsanitize_recover_EQ, Sanitizer); 1747 1748 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1749 GenerateArg(Consumer, OPT_fsanitize_trap_EQ, Sanitizer); 1750 1751 if (!Opts.EmitVersionIdentMetadata) 1752 GenerateArg(Consumer, OPT_Qn); 1753 1754 switch (Opts.FiniteLoops) { 1755 case CodeGenOptions::FiniteLoopsKind::Language: 1756 break; 1757 case CodeGenOptions::FiniteLoopsKind::Always: 1758 GenerateArg(Consumer, OPT_ffinite_loops); 1759 break; 1760 case CodeGenOptions::FiniteLoopsKind::Never: 1761 GenerateArg(Consumer, OPT_fno_finite_loops); 1762 break; 1763 } 1764 } 1765 1766 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1767 InputKind IK, 1768 DiagnosticsEngine &Diags, 1769 const llvm::Triple &T, 1770 const std::string &OutputFile, 1771 const LangOptions &LangOptsRef) { 1772 unsigned NumErrorsBefore = Diags.getNumErrors(); 1773 1774 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1775 // TODO: This could be done in Driver 1776 unsigned MaxOptLevel = 3; 1777 if (OptimizationLevel > MaxOptLevel) { 1778 // If the optimization level is not supported, fall back on the default 1779 // optimization 1780 Diags.Report(diag::warn_drv_optimization_value) 1781 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1782 OptimizationLevel = MaxOptLevel; 1783 } 1784 Opts.OptimizationLevel = OptimizationLevel; 1785 1786 // The key paths of codegen options defined in Options.td start with 1787 // "CodeGenOpts.". Let's provide the expected variable name and type. 1788 CodeGenOptions &CodeGenOpts = Opts; 1789 // Some codegen options depend on language options. Let's provide the expected 1790 // variable name and type. 1791 const LangOptions *LangOpts = &LangOptsRef; 1792 1793 #define CODEGEN_OPTION_WITH_MARSHALLING(...) \ 1794 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 1795 #include "clang/Driver/Options.inc" 1796 #undef CODEGEN_OPTION_WITH_MARSHALLING 1797 1798 // At O0 we want to fully disable inlining outside of cases marked with 1799 // 'alwaysinline' that are required for correctness. 1800 if (Opts.OptimizationLevel == 0) { 1801 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1802 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1803 options::OPT_finline_hint_functions, 1804 options::OPT_fno_inline_functions, 1805 options::OPT_fno_inline)) { 1806 // Explicit inlining flags can disable some or all inlining even at 1807 // optimization levels above zero. 1808 if (A->getOption().matches(options::OPT_finline_functions)) 1809 Opts.setInlining(CodeGenOptions::NormalInlining); 1810 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1811 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1812 else 1813 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1814 } else { 1815 Opts.setInlining(CodeGenOptions::NormalInlining); 1816 } 1817 1818 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1819 // -fdirect-access-external-data. 1820 Opts.DirectAccessExternalData = 1821 Args.hasArg(OPT_fdirect_access_external_data) || 1822 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1823 LangOpts->PICLevel == 0); 1824 1825 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1826 unsigned Val = 1827 llvm::StringSwitch<unsigned>(A->getValue()) 1828 .Case("line-tables-only", llvm::codegenoptions::DebugLineTablesOnly) 1829 .Case("line-directives-only", 1830 llvm::codegenoptions::DebugDirectivesOnly) 1831 .Case("constructor", llvm::codegenoptions::DebugInfoConstructor) 1832 .Case("limited", llvm::codegenoptions::LimitedDebugInfo) 1833 .Case("standalone", llvm::codegenoptions::FullDebugInfo) 1834 .Case("unused-types", llvm::codegenoptions::UnusedTypeInfo) 1835 .Default(~0U); 1836 if (Val == ~0U) 1837 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1838 << A->getValue(); 1839 else 1840 Opts.setDebugInfo(static_cast<llvm::codegenoptions::DebugInfoKind>(Val)); 1841 } 1842 1843 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1844 // constructor homing, and vice versa for -fno-use-ctor-homing. 1845 if (const Arg *A = 1846 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1847 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1848 Opts.getDebugInfo() == llvm::codegenoptions::LimitedDebugInfo) 1849 Opts.setDebugInfo(llvm::codegenoptions::DebugInfoConstructor); 1850 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1851 Opts.getDebugInfo() == llvm::codegenoptions::DebugInfoConstructor) 1852 Opts.setDebugInfo(llvm::codegenoptions::LimitedDebugInfo); 1853 } 1854 1855 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1856 auto Split = StringRef(Arg).split('='); 1857 Opts.DebugPrefixMap.emplace_back(Split.first, Split.second); 1858 } 1859 1860 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1861 auto Split = StringRef(Arg).split('='); 1862 Opts.CoveragePrefixMap.emplace_back(Split.first, Split.second); 1863 } 1864 1865 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1866 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1867 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1868 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1869 1870 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1871 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1872 Opts.EmitCallSiteInfo = true; 1873 1874 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1875 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1876 << Opts.DIBugsReportFilePath; 1877 Opts.DIBugsReportFilePath = ""; 1878 } 1879 1880 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1881 Args.hasArg(OPT_new_struct_path_tbaa); 1882 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1883 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1884 if (Opts.SimplifyLibCalls) 1885 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1886 Opts.UnrollLoops = 1887 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1888 (Opts.OptimizationLevel > 1)); 1889 Opts.BinutilsVersion = 1890 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1891 1892 Opts.DebugTemplateAlias = Args.hasArg(OPT_gtemplate_alias); 1893 1894 Opts.DebugNameTable = static_cast<unsigned>( 1895 Args.hasArg(OPT_ggnu_pubnames) 1896 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1897 : Args.hasArg(OPT_gpubnames) 1898 ? llvm::DICompileUnit::DebugNameTableKind::Default 1899 : llvm::DICompileUnit::DebugNameTableKind::None); 1900 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1901 StringRef Value = A->getValue(); 1902 if (Value != "simple" && Value != "mangled") 1903 Diags.Report(diag::err_drv_unsupported_option_argument) 1904 << A->getSpelling() << A->getValue(); 1905 Opts.setDebugSimpleTemplateNames( 1906 StringRef(A->getValue()) == "simple" 1907 ? llvm::codegenoptions::DebugTemplateNamesKind::Simple 1908 : llvm::codegenoptions::DebugTemplateNamesKind::Mangled); 1909 } 1910 1911 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1912 Opts.TimePasses = true; 1913 1914 // -ftime-report= is only for new pass manager. 1915 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1916 StringRef Val = A->getValue(); 1917 if (Val == "per-pass") 1918 Opts.TimePassesPerRun = false; 1919 else if (Val == "per-pass-run") 1920 Opts.TimePassesPerRun = true; 1921 else 1922 Diags.Report(diag::err_drv_invalid_value) 1923 << A->getAsString(Args) << A->getValue(); 1924 } 1925 } 1926 1927 Opts.PrepareForLTO = false; 1928 Opts.PrepareForThinLTO = false; 1929 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1930 Opts.PrepareForLTO = true; 1931 StringRef S = A->getValue(); 1932 if (S == "thin") 1933 Opts.PrepareForThinLTO = true; 1934 else if (S != "full") 1935 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1936 if (Args.hasArg(OPT_funified_lto)) 1937 Opts.PrepareForThinLTO = true; 1938 } 1939 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1940 if (IK.getLanguage() != Language::LLVM_IR) 1941 Diags.Report(diag::err_drv_argument_only_allowed_with) 1942 << A->getAsString(Args) << "-x ir"; 1943 Opts.ThinLTOIndexFile = 1944 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1945 } 1946 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1947 Opts.SaveTempsFilePrefix = 1948 llvm::StringSwitch<std::string>(A->getValue()) 1949 .Case("obj", OutputFile) 1950 .Default(llvm::sys::path::filename(OutputFile).str()); 1951 1952 // The memory profile runtime appends the pid to make this name more unique. 1953 const char *MemProfileBasename = "memprof.profraw"; 1954 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1955 SmallString<128> Path( 1956 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1957 llvm::sys::path::append(Path, MemProfileBasename); 1958 Opts.MemoryProfileOutput = std::string(Path); 1959 } else if (Args.hasArg(OPT_fmemory_profile)) 1960 Opts.MemoryProfileOutput = MemProfileBasename; 1961 1962 memcpy(Opts.CoverageVersion, "408*", 4); 1963 if (Opts.CoverageNotesFile.size() || Opts.CoverageDataFile.size()) { 1964 if (Args.hasArg(OPT_coverage_version_EQ)) { 1965 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1966 if (CoverageVersion.size() != 4) { 1967 Diags.Report(diag::err_drv_invalid_value) 1968 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1969 << CoverageVersion; 1970 } else { 1971 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1972 } 1973 } 1974 } 1975 // FIXME: For backend options that are not yet recorded as function 1976 // attributes in the IR, keep track of them so we can embed them in a 1977 // separate data section and use them when building the bitcode. 1978 for (const auto &A : Args) { 1979 // Do not encode output and input. 1980 if (A->getOption().getID() == options::OPT_o || 1981 A->getOption().getID() == options::OPT_INPUT || 1982 A->getOption().getID() == options::OPT_x || 1983 A->getOption().getID() == options::OPT_fembed_bitcode || 1984 A->getOption().matches(options::OPT_W_Group)) 1985 continue; 1986 ArgStringList ASL; 1987 A->render(Args, ASL); 1988 for (const auto &arg : ASL) { 1989 StringRef ArgStr(arg); 1990 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1991 // using \00 to separate each commandline options. 1992 Opts.CmdArgs.push_back('\0'); 1993 } 1994 } 1995 1996 auto XRayInstrBundles = 1997 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1998 if (XRayInstrBundles.empty()) 1999 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 2000 else 2001 for (const auto &A : XRayInstrBundles) 2002 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 2003 Diags, Opts.XRayInstrumentationBundle); 2004 2005 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2006 StringRef Name = A->getValue(); 2007 if (Name == "full") { 2008 Opts.CFProtectionReturn = 1; 2009 Opts.CFProtectionBranch = 1; 2010 } else if (Name == "return") 2011 Opts.CFProtectionReturn = 1; 2012 else if (Name == "branch") 2013 Opts.CFProtectionBranch = 1; 2014 else if (Name != "none") 2015 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2016 } 2017 2018 if (const Arg *A = Args.getLastArg(OPT_mfunction_return_EQ)) { 2019 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue()) 2020 .Case("keep", llvm::FunctionReturnThunksKind::Keep) 2021 .Case("thunk-extern", llvm::FunctionReturnThunksKind::Extern) 2022 .Default(llvm::FunctionReturnThunksKind::Invalid); 2023 // SystemZ might want to add support for "expolines." 2024 if (!T.isX86()) 2025 Diags.Report(diag::err_drv_argument_not_allowed_with) 2026 << A->getSpelling() << T.getTriple(); 2027 else if (Val == llvm::FunctionReturnThunksKind::Invalid) 2028 Diags.Report(diag::err_drv_invalid_value) 2029 << A->getAsString(Args) << A->getValue(); 2030 else if (Val == llvm::FunctionReturnThunksKind::Extern && 2031 Args.getLastArgValue(OPT_mcmodel_EQ) == "large") 2032 Diags.Report(diag::err_drv_argument_not_allowed_with) 2033 << A->getAsString(Args) 2034 << Args.getLastArg(OPT_mcmodel_EQ)->getAsString(Args); 2035 else 2036 Opts.FunctionReturnThunks = static_cast<unsigned>(Val); 2037 } 2038 2039 for (auto *A : 2040 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 2041 CodeGenOptions::BitcodeFileToLink F; 2042 F.Filename = A->getValue(); 2043 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 2044 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 2045 // When linking CUDA bitcode, propagate function attributes so that 2046 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 2047 F.PropagateAttrs = true; 2048 F.Internalize = true; 2049 } 2050 Opts.LinkBitcodeFiles.push_back(F); 2051 } 2052 2053 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 2054 StringRef Val = A->getValue(); 2055 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 2056 Opts.FP32DenormalMode = Opts.FPDenormalMode; 2057 if (!Opts.FPDenormalMode.isValid()) 2058 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2059 } 2060 2061 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 2062 StringRef Val = A->getValue(); 2063 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 2064 if (!Opts.FP32DenormalMode.isValid()) 2065 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2066 } 2067 2068 // X86_32 has -fppc-struct-return and -freg-struct-return. 2069 // PPC32 has -maix-struct-return and -msvr4-struct-return. 2070 if (Arg *A = 2071 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 2072 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 2073 // TODO: We might want to consider enabling these options on AIX in the 2074 // future. 2075 if (T.isOSAIX()) 2076 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2077 << A->getSpelling() << T.str(); 2078 2079 const Option &O = A->getOption(); 2080 if (O.matches(OPT_fpcc_struct_return) || 2081 O.matches(OPT_maix_struct_return)) { 2082 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 2083 } else { 2084 assert(O.matches(OPT_freg_struct_return) || 2085 O.matches(OPT_msvr4_struct_return)); 2086 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 2087 } 2088 } 2089 2090 if (Arg *A = Args.getLastArg(OPT_mxcoff_roptr)) { 2091 if (!T.isOSAIX()) 2092 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2093 << A->getSpelling() << T.str(); 2094 2095 // Since the storage mapping class is specified per csect, 2096 // without using data sections, it is less effective to use read-only 2097 // pointers. Using read-only pointers may cause other RO variables in the 2098 // same csect to become RW when the linker acts upon `-bforceimprw`; 2099 // therefore, we require that separate data sections 2100 // are used when `-mxcoff-roptr` is in effect. We respect the setting of 2101 // data-sections since we have not found reasons to do otherwise that 2102 // overcome the user surprise of not respecting the setting. 2103 if (!Args.hasFlag(OPT_fdata_sections, OPT_fno_data_sections, false)) 2104 Diags.Report(diag::err_roptr_requires_data_sections); 2105 2106 Opts.XCOFFReadOnlyPointers = true; 2107 } 2108 2109 if (Arg *A = Args.getLastArg(OPT_mabi_EQ_quadword_atomics)) { 2110 if (!T.isOSAIX() || T.isPPC32()) 2111 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2112 << A->getSpelling() << T.str(); 2113 } 2114 2115 bool NeedLocTracking = false; 2116 2117 if (!Opts.OptRecordFile.empty()) 2118 NeedLocTracking = true; 2119 2120 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 2121 Opts.OptRecordPasses = A->getValue(); 2122 NeedLocTracking = true; 2123 } 2124 2125 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 2126 Opts.OptRecordFormat = A->getValue(); 2127 NeedLocTracking = true; 2128 } 2129 2130 Opts.OptimizationRemark = 2131 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 2132 2133 Opts.OptimizationRemarkMissed = 2134 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 2135 2136 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 2137 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 2138 2139 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 2140 Opts.OptimizationRemarkMissed.hasValidPattern() || 2141 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 2142 2143 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 2144 bool UsingProfile = 2145 UsingSampleProfile || !Opts.ProfileInstrumentUsePath.empty(); 2146 2147 if (Opts.DiagnosticsWithHotness && !UsingProfile && 2148 // An IR file will contain PGO as metadata 2149 IK.getLanguage() != Language::LLVM_IR) 2150 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 2151 << "-fdiagnostics-show-hotness"; 2152 2153 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 2154 if (auto *arg = 2155 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 2156 auto ResultOrErr = 2157 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 2158 2159 if (!ResultOrErr) { 2160 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 2161 << "-fdiagnostics-hotness-threshold="; 2162 } else { 2163 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 2164 if ((!Opts.DiagnosticsHotnessThreshold || 2165 *Opts.DiagnosticsHotnessThreshold > 0) && 2166 !UsingProfile) 2167 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 2168 << "-fdiagnostics-hotness-threshold="; 2169 } 2170 } 2171 2172 if (auto *arg = 2173 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 2174 auto ResultOrErr = parseToleranceOption(arg->getValue()); 2175 2176 if (!ResultOrErr) { 2177 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 2178 << "-fdiagnostics-misexpect-tolerance="; 2179 } else { 2180 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 2181 if ((!Opts.DiagnosticsMisExpectTolerance || 2182 *Opts.DiagnosticsMisExpectTolerance > 0) && 2183 !UsingProfile) 2184 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 2185 << "-fdiagnostics-misexpect-tolerance="; 2186 } 2187 } 2188 2189 // If the user requested to use a sample profile for PGO, then the 2190 // backend will need to track source location information so the profile 2191 // can be incorporated into the IR. 2192 if (UsingSampleProfile) 2193 NeedLocTracking = true; 2194 2195 if (!Opts.StackUsageOutput.empty()) 2196 NeedLocTracking = true; 2197 2198 // If the user requested a flag that requires source locations available in 2199 // the backend, make sure that the backend tracks source location information. 2200 if (NeedLocTracking && 2201 Opts.getDebugInfo() == llvm::codegenoptions::NoDebugInfo) 2202 Opts.setDebugInfo(llvm::codegenoptions::LocTrackingOnly); 2203 2204 // Parse -fsanitize-recover= arguments. 2205 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2206 parseSanitizerKinds("-fsanitize-recover=", 2207 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2208 Opts.SanitizeRecover); 2209 parseSanitizerKinds("-fsanitize-trap=", 2210 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2211 Opts.SanitizeTrap); 2212 2213 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2214 2215 if (!LangOpts->CUDAIsDevice) 2216 parsePointerAuthOptions(Opts.PointerAuth, *LangOpts, T, Diags); 2217 2218 if (Args.hasArg(options::OPT_ffinite_loops)) 2219 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2220 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2221 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2222 2223 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2224 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2225 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2226 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2227 2228 return Diags.getNumErrors() == NumErrorsBefore; 2229 } 2230 2231 static void GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2232 ArgumentConsumer Consumer) { 2233 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2234 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 2235 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2236 #include "clang/Driver/Options.inc" 2237 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2238 2239 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2240 GenerateArg(Consumer, OPT_show_includes); 2241 2242 for (const auto &Dep : Opts.ExtraDeps) { 2243 switch (Dep.second) { 2244 case EDK_SanitizeIgnorelist: 2245 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2246 continue; 2247 case EDK_ModuleFile: 2248 // Module file arguments are generated from FrontendOptions and 2249 // HeaderSearchOptions. 2250 continue; 2251 case EDK_ProfileList: 2252 // Profile list arguments are generated from LanguageOptions via the 2253 // marshalling infrastructure. 2254 continue; 2255 case EDK_DepFileEntry: 2256 GenerateArg(Consumer, OPT_fdepfile_entry, Dep.first); 2257 break; 2258 } 2259 } 2260 } 2261 2262 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2263 ArgList &Args, DiagnosticsEngine &Diags, 2264 frontend::ActionKind Action, 2265 bool ShowLineMarkers) { 2266 unsigned NumErrorsBefore = Diags.getNumErrors(); 2267 2268 DependencyOutputOptions &DependencyOutputOpts = Opts; 2269 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 2270 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2271 #include "clang/Driver/Options.inc" 2272 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2273 2274 if (Args.hasArg(OPT_show_includes)) { 2275 // Writing both /showIncludes and preprocessor output to stdout 2276 // would produce interleaved output, so use stderr for /showIncludes. 2277 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2278 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2279 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2280 else 2281 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2282 } else { 2283 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2284 } 2285 2286 // Add sanitizer ignorelists as extra dependencies. 2287 // They won't be discovered by the regular preprocessor, so 2288 // we let make / ninja to know about this implicit dependency. 2289 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2290 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2291 StringRef Val = A->getValue(); 2292 if (!Val.contains('=')) 2293 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2294 } 2295 if (Opts.IncludeSystemHeaders) { 2296 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2297 StringRef Val = A->getValue(); 2298 if (!Val.contains('=')) 2299 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2300 } 2301 } 2302 } 2303 2304 // -fprofile-list= dependencies. 2305 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2306 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2307 2308 // Propagate the extra dependencies. 2309 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2310 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2311 2312 // Only the -fmodule-file=<file> form. 2313 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2314 StringRef Val = A->getValue(); 2315 if (!Val.contains('=')) 2316 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2317 } 2318 2319 // Check for invalid combinations of header-include-format 2320 // and header-include-filtering. 2321 if ((Opts.HeaderIncludeFormat == HIFMT_Textual && 2322 Opts.HeaderIncludeFiltering != HIFIL_None) || 2323 (Opts.HeaderIncludeFormat == HIFMT_JSON && 2324 Opts.HeaderIncludeFiltering != HIFIL_Only_Direct_System)) 2325 Diags.Report(diag::err_drv_print_header_env_var_combination_cc1) 2326 << Args.getLastArg(OPT_header_include_format_EQ)->getValue() 2327 << Args.getLastArg(OPT_header_include_filtering_EQ)->getValue(); 2328 2329 return Diags.getNumErrors() == NumErrorsBefore; 2330 } 2331 2332 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2333 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2334 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2335 // Support both clang's -f[no-]color-diagnostics and gcc's 2336 // -f[no-]diagnostics-colors[=never|always|auto]. 2337 enum { 2338 Colors_On, 2339 Colors_Off, 2340 Colors_Auto 2341 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2342 for (auto *A : Args) { 2343 const Option &O = A->getOption(); 2344 if (O.matches(options::OPT_fcolor_diagnostics)) { 2345 ShowColors = Colors_On; 2346 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2347 ShowColors = Colors_Off; 2348 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2349 StringRef Value(A->getValue()); 2350 if (Value == "always") 2351 ShowColors = Colors_On; 2352 else if (Value == "never") 2353 ShowColors = Colors_Off; 2354 else if (Value == "auto") 2355 ShowColors = Colors_Auto; 2356 } 2357 } 2358 return ShowColors == Colors_On || 2359 (ShowColors == Colors_Auto && 2360 llvm::sys::Process::StandardErrHasColors()); 2361 } 2362 2363 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2364 DiagnosticsEngine &Diags) { 2365 bool Success = true; 2366 for (const auto &Prefix : VerifyPrefixes) { 2367 // Every prefix must start with a letter and contain only alphanumeric 2368 // characters, hyphens, and underscores. 2369 auto BadChar = llvm::find_if(Prefix, [](char C) { 2370 return !isAlphanumeric(C) && C != '-' && C != '_'; 2371 }); 2372 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2373 Success = false; 2374 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2375 Diags.Report(diag::note_drv_verify_prefix_spelling); 2376 } 2377 } 2378 return Success; 2379 } 2380 2381 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2382 ArgumentConsumer Consumer) { 2383 const FileSystemOptions &FileSystemOpts = Opts; 2384 2385 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \ 2386 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2387 #include "clang/Driver/Options.inc" 2388 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2389 } 2390 2391 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2392 DiagnosticsEngine &Diags) { 2393 unsigned NumErrorsBefore = Diags.getNumErrors(); 2394 2395 FileSystemOptions &FileSystemOpts = Opts; 2396 2397 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \ 2398 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2399 #include "clang/Driver/Options.inc" 2400 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2401 2402 return Diags.getNumErrors() == NumErrorsBefore; 2403 } 2404 2405 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2406 ArgumentConsumer Consumer) { 2407 const MigratorOptions &MigratorOpts = Opts; 2408 #define MIGRATOR_OPTION_WITH_MARSHALLING(...) \ 2409 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2410 #include "clang/Driver/Options.inc" 2411 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2412 } 2413 2414 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2415 DiagnosticsEngine &Diags) { 2416 unsigned NumErrorsBefore = Diags.getNumErrors(); 2417 2418 MigratorOptions &MigratorOpts = Opts; 2419 2420 #define MIGRATOR_OPTION_WITH_MARSHALLING(...) \ 2421 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2422 #include "clang/Driver/Options.inc" 2423 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2424 2425 return Diags.getNumErrors() == NumErrorsBefore; 2426 } 2427 2428 void CompilerInvocationBase::GenerateDiagnosticArgs( 2429 const DiagnosticOptions &Opts, ArgumentConsumer Consumer, 2430 bool DefaultDiagColor) { 2431 const DiagnosticOptions *DiagnosticOpts = &Opts; 2432 #define DIAG_OPTION_WITH_MARSHALLING(...) \ 2433 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2434 #include "clang/Driver/Options.inc" 2435 #undef DIAG_OPTION_WITH_MARSHALLING 2436 2437 if (!Opts.DiagnosticSerializationFile.empty()) 2438 GenerateArg(Consumer, OPT_diagnostic_serialized_file, 2439 Opts.DiagnosticSerializationFile); 2440 2441 if (Opts.ShowColors) 2442 GenerateArg(Consumer, OPT_fcolor_diagnostics); 2443 2444 if (Opts.VerifyDiagnostics && 2445 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2446 GenerateArg(Consumer, OPT_verify); 2447 2448 for (const auto &Prefix : Opts.VerifyPrefixes) 2449 if (Prefix != "expected") 2450 GenerateArg(Consumer, OPT_verify_EQ, Prefix); 2451 2452 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2453 if (VIU == DiagnosticLevelMask::None) { 2454 // This is the default, don't generate anything. 2455 } else if (VIU == DiagnosticLevelMask::All) { 2456 GenerateArg(Consumer, OPT_verify_ignore_unexpected); 2457 } else { 2458 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2459 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "note"); 2460 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2461 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "remark"); 2462 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2463 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "warning"); 2464 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2465 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "error"); 2466 } 2467 2468 for (const auto &Warning : Opts.Warnings) { 2469 // This option is automatically generated from UndefPrefixes. 2470 if (Warning == "undef-prefix") 2471 continue; 2472 // This option is automatically generated from CheckConstexprFunctionBodies. 2473 if (Warning == "invalid-constexpr" || Warning == "no-invalid-constexpr") 2474 continue; 2475 Consumer(StringRef("-W") + Warning); 2476 } 2477 2478 for (const auto &Remark : Opts.Remarks) { 2479 // These arguments are generated from OptimizationRemark fields of 2480 // CodeGenOptions. 2481 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2482 "pass-analysis", "no-pass-analysis", 2483 "pass-missed", "no-pass-missed"}; 2484 if (llvm::is_contained(IgnoredRemarks, Remark)) 2485 continue; 2486 2487 Consumer(StringRef("-R") + Remark); 2488 } 2489 } 2490 2491 std::unique_ptr<DiagnosticOptions> 2492 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2493 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2494 unsigned MissingArgIndex, MissingArgCount; 2495 InputArgList Args = getDriverOptTable().ParseArgs( 2496 Argv.slice(1), MissingArgIndex, MissingArgCount); 2497 2498 bool ShowColors = true; 2499 if (std::optional<std::string> NoColor = 2500 llvm::sys::Process::GetEnv("NO_COLOR"); 2501 NoColor && !NoColor->empty()) { 2502 // If the user set the NO_COLOR environment variable, we'll honor that 2503 // unless the command line overrides it. 2504 ShowColors = false; 2505 } 2506 2507 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2508 // Any errors that would be diagnosed here will also be diagnosed later, 2509 // when the DiagnosticsEngine actually exists. 2510 (void)ParseDiagnosticArgs(*DiagOpts, Args, /*Diags=*/nullptr, ShowColors); 2511 return DiagOpts; 2512 } 2513 2514 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2515 DiagnosticsEngine *Diags, 2516 bool DefaultDiagColor) { 2517 std::optional<DiagnosticsEngine> IgnoringDiags; 2518 if (!Diags) { 2519 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2520 new IgnoringDiagConsumer()); 2521 Diags = &*IgnoringDiags; 2522 } 2523 2524 unsigned NumErrorsBefore = Diags->getNumErrors(); 2525 2526 // The key paths of diagnostic options defined in Options.td start with 2527 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2528 DiagnosticOptions *DiagnosticOpts = &Opts; 2529 2530 #define DIAG_OPTION_WITH_MARSHALLING(...) \ 2531 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, __VA_ARGS__) 2532 #include "clang/Driver/Options.inc" 2533 #undef DIAG_OPTION_WITH_MARSHALLING 2534 2535 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2536 2537 if (Arg *A = 2538 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2539 Opts.DiagnosticSerializationFile = A->getValue(); 2540 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2541 2542 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2543 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2544 if (Args.hasArg(OPT_verify)) 2545 Opts.VerifyPrefixes.push_back("expected"); 2546 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2547 // then sort it to prepare for fast lookup using std::binary_search. 2548 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2549 Opts.VerifyDiagnostics = false; 2550 else 2551 llvm::sort(Opts.VerifyPrefixes); 2552 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2553 parseDiagnosticLevelMask( 2554 "-verify-ignore-unexpected=", 2555 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2556 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2557 DiagMask = DiagnosticLevelMask::All; 2558 Opts.setVerifyIgnoreUnexpected(DiagMask); 2559 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2560 Diags->Report(diag::warn_ignoring_ftabstop_value) 2561 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2562 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2563 } 2564 2565 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2566 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2567 2568 return Diags->getNumErrors() == NumErrorsBefore; 2569 } 2570 2571 /// Parse the argument to the -ftest-module-file-extension 2572 /// command-line argument. 2573 /// 2574 /// \returns true on error, false on success. 2575 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2576 std::string &BlockName, 2577 unsigned &MajorVersion, 2578 unsigned &MinorVersion, 2579 bool &Hashed, 2580 std::string &UserInfo) { 2581 SmallVector<StringRef, 5> Args; 2582 Arg.split(Args, ':', 5); 2583 if (Args.size() < 5) 2584 return true; 2585 2586 BlockName = std::string(Args[0]); 2587 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2588 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2589 if (Args[3].getAsInteger(2, Hashed)) return true; 2590 if (Args.size() > 4) 2591 UserInfo = std::string(Args[4]); 2592 return false; 2593 } 2594 2595 /// Return a table that associates command line option specifiers with the 2596 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2597 /// intentionally missing, as this case is handled separately from other 2598 /// frontend options. 2599 static const auto &getFrontendActionTable() { 2600 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2601 {frontend::ASTDeclList, OPT_ast_list}, 2602 2603 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2604 {frontend::ASTDump, OPT_ast_dump_all}, 2605 {frontend::ASTDump, OPT_ast_dump_EQ}, 2606 {frontend::ASTDump, OPT_ast_dump}, 2607 {frontend::ASTDump, OPT_ast_dump_lookups}, 2608 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2609 2610 {frontend::ASTPrint, OPT_ast_print}, 2611 {frontend::ASTView, OPT_ast_view}, 2612 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2613 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2614 {frontend::DumpTokens, OPT_dump_tokens}, 2615 {frontend::EmitAssembly, OPT_S}, 2616 {frontend::EmitBC, OPT_emit_llvm_bc}, 2617 {frontend::EmitCIR, OPT_emit_cir}, 2618 {frontend::EmitHTML, OPT_emit_html}, 2619 {frontend::EmitLLVM, OPT_emit_llvm}, 2620 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2621 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2622 {frontend::EmitObj, OPT_emit_obj}, 2623 {frontend::ExtractAPI, OPT_extract_api}, 2624 2625 {frontend::FixIt, OPT_fixit_EQ}, 2626 {frontend::FixIt, OPT_fixit}, 2627 2628 {frontend::GenerateModule, OPT_emit_module}, 2629 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2630 {frontend::GenerateReducedModuleInterface, 2631 OPT_emit_reduced_module_interface}, 2632 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2633 {frontend::GeneratePCH, OPT_emit_pch}, 2634 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2635 {frontend::InitOnly, OPT_init_only}, 2636 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2637 {frontend::ModuleFileInfo, OPT_module_file_info}, 2638 {frontend::VerifyPCH, OPT_verify_pch}, 2639 {frontend::PrintPreamble, OPT_print_preamble}, 2640 {frontend::PrintPreprocessedInput, OPT_E}, 2641 {frontend::TemplightDump, OPT_templight_dump}, 2642 {frontend::RewriteMacros, OPT_rewrite_macros}, 2643 {frontend::RewriteObjC, OPT_rewrite_objc}, 2644 {frontend::RewriteTest, OPT_rewrite_test}, 2645 {frontend::RunAnalysis, OPT_analyze}, 2646 {frontend::MigrateSource, OPT_migrate}, 2647 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2648 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2649 OPT_print_dependency_directives_minimized_source}, 2650 }; 2651 2652 return Table; 2653 } 2654 2655 /// Maps command line option to frontend action. 2656 static std::optional<frontend::ActionKind> 2657 getFrontendAction(OptSpecifier &Opt) { 2658 for (const auto &ActionOpt : getFrontendActionTable()) 2659 if (ActionOpt.second == Opt.getID()) 2660 return ActionOpt.first; 2661 2662 return std::nullopt; 2663 } 2664 2665 /// Maps frontend action to command line option. 2666 static std::optional<OptSpecifier> 2667 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2668 for (const auto &ActionOpt : getFrontendActionTable()) 2669 if (ActionOpt.first == ProgramAction) 2670 return OptSpecifier(ActionOpt.second); 2671 2672 return std::nullopt; 2673 } 2674 2675 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2676 ArgumentConsumer Consumer, bool IsHeader) { 2677 const FrontendOptions &FrontendOpts = Opts; 2678 #define FRONTEND_OPTION_WITH_MARSHALLING(...) \ 2679 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2680 #include "clang/Driver/Options.inc" 2681 #undef FRONTEND_OPTION_WITH_MARSHALLING 2682 2683 std::optional<OptSpecifier> ProgramActionOpt = 2684 getProgramActionOpt(Opts.ProgramAction); 2685 2686 // Generating a simple flag covers most frontend actions. 2687 std::function<void()> GenerateProgramAction = [&]() { 2688 GenerateArg(Consumer, *ProgramActionOpt); 2689 }; 2690 2691 if (!ProgramActionOpt) { 2692 // PluginAction is the only program action handled separately. 2693 assert(Opts.ProgramAction == frontend::PluginAction && 2694 "Frontend action without option."); 2695 GenerateProgramAction = [&]() { 2696 GenerateArg(Consumer, OPT_plugin, Opts.ActionName); 2697 }; 2698 } 2699 2700 // FIXME: Simplify the complex 'AST dump' command line. 2701 if (Opts.ProgramAction == frontend::ASTDump) { 2702 GenerateProgramAction = [&]() { 2703 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2704 // marshalling infrastructure. 2705 2706 if (Opts.ASTDumpFormat != ADOF_Default) { 2707 StringRef Format; 2708 switch (Opts.ASTDumpFormat) { 2709 case ADOF_Default: 2710 llvm_unreachable("Default AST dump format."); 2711 case ADOF_JSON: 2712 Format = "json"; 2713 break; 2714 } 2715 2716 if (Opts.ASTDumpAll) 2717 GenerateArg(Consumer, OPT_ast_dump_all_EQ, Format); 2718 if (Opts.ASTDumpDecls) 2719 GenerateArg(Consumer, OPT_ast_dump_EQ, Format); 2720 } else { 2721 if (Opts.ASTDumpAll) 2722 GenerateArg(Consumer, OPT_ast_dump_all); 2723 if (Opts.ASTDumpDecls) 2724 GenerateArg(Consumer, OPT_ast_dump); 2725 } 2726 }; 2727 } 2728 2729 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2730 GenerateProgramAction = [&]() { 2731 GenerateArg(Consumer, OPT_fixit_EQ, Opts.FixItSuffix); 2732 }; 2733 } 2734 2735 GenerateProgramAction(); 2736 2737 for (const auto &PluginArgs : Opts.PluginArgs) { 2738 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2739 for (const auto &PluginArg : PluginArgs.second) 2740 denormalizeString(Consumer, 2741 Opt.getPrefix() + Opt.getName() + PluginArgs.first, 2742 Opt.getKind(), 0, PluginArg); 2743 } 2744 2745 for (const auto &Ext : Opts.ModuleFileExtensions) 2746 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2747 GenerateArg(Consumer, OPT_ftest_module_file_extension_EQ, TestExt->str()); 2748 2749 if (!Opts.CodeCompletionAt.FileName.empty()) 2750 GenerateArg(Consumer, OPT_code_completion_at, 2751 Opts.CodeCompletionAt.ToString()); 2752 2753 for (const auto &Plugin : Opts.Plugins) 2754 GenerateArg(Consumer, OPT_load, Plugin); 2755 2756 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2757 2758 for (const auto &ModuleFile : Opts.ModuleFiles) 2759 GenerateArg(Consumer, OPT_fmodule_file, ModuleFile); 2760 2761 if (Opts.AuxTargetCPU) 2762 GenerateArg(Consumer, OPT_aux_target_cpu, *Opts.AuxTargetCPU); 2763 2764 if (Opts.AuxTargetFeatures) 2765 for (const auto &Feature : *Opts.AuxTargetFeatures) 2766 GenerateArg(Consumer, OPT_aux_target_feature, Feature); 2767 2768 { 2769 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2770 StringRef ModuleMap = 2771 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2772 StringRef HeaderUnit = ""; 2773 switch (Opts.DashX.getHeaderUnitKind()) { 2774 case InputKind::HeaderUnit_None: 2775 break; 2776 case InputKind::HeaderUnit_User: 2777 HeaderUnit = "-user"; 2778 break; 2779 case InputKind::HeaderUnit_System: 2780 HeaderUnit = "-system"; 2781 break; 2782 case InputKind::HeaderUnit_Abs: 2783 HeaderUnit = "-header-unit"; 2784 break; 2785 } 2786 StringRef Header = IsHeader ? "-header" : ""; 2787 2788 StringRef Lang; 2789 switch (Opts.DashX.getLanguage()) { 2790 case Language::C: 2791 Lang = "c"; 2792 break; 2793 case Language::OpenCL: 2794 Lang = "cl"; 2795 break; 2796 case Language::OpenCLCXX: 2797 Lang = "clcpp"; 2798 break; 2799 case Language::CUDA: 2800 Lang = "cuda"; 2801 break; 2802 case Language::HIP: 2803 Lang = "hip"; 2804 break; 2805 case Language::CXX: 2806 Lang = "c++"; 2807 break; 2808 case Language::ObjC: 2809 Lang = "objective-c"; 2810 break; 2811 case Language::ObjCXX: 2812 Lang = "objective-c++"; 2813 break; 2814 case Language::RenderScript: 2815 Lang = "renderscript"; 2816 break; 2817 case Language::Asm: 2818 Lang = "assembler-with-cpp"; 2819 break; 2820 case Language::Unknown: 2821 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2822 "Generating -x argument for unknown language (not precompiled)."); 2823 Lang = "ast"; 2824 break; 2825 case Language::LLVM_IR: 2826 Lang = "ir"; 2827 break; 2828 case Language::HLSL: 2829 Lang = "hlsl"; 2830 break; 2831 case Language::CIR: 2832 Lang = "cir"; 2833 break; 2834 } 2835 2836 GenerateArg(Consumer, OPT_x, 2837 Lang + HeaderUnit + Header + ModuleMap + Preprocessed); 2838 } 2839 2840 // OPT_INPUT has a unique class, generate it directly. 2841 for (const auto &Input : Opts.Inputs) 2842 Consumer(Input.getFile()); 2843 } 2844 2845 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2846 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2847 unsigned NumErrorsBefore = Diags.getNumErrors(); 2848 2849 FrontendOptions &FrontendOpts = Opts; 2850 2851 #define FRONTEND_OPTION_WITH_MARSHALLING(...) \ 2852 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2853 #include "clang/Driver/Options.inc" 2854 #undef FRONTEND_OPTION_WITH_MARSHALLING 2855 2856 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2857 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2858 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2859 std::optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2860 assert(ProgramAction && "Option specifier not in Action_Group."); 2861 2862 if (ProgramAction == frontend::ASTDump && 2863 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2864 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2865 .CaseLower("default", ADOF_Default) 2866 .CaseLower("json", ADOF_JSON) 2867 .Default(std::numeric_limits<unsigned>::max()); 2868 2869 if (Val != std::numeric_limits<unsigned>::max()) 2870 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2871 else { 2872 Diags.Report(diag::err_drv_invalid_value) 2873 << A->getAsString(Args) << A->getValue(); 2874 Opts.ASTDumpFormat = ADOF_Default; 2875 } 2876 } 2877 2878 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2879 Opts.FixItSuffix = A->getValue(); 2880 2881 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2882 StringRef ArgStr = 2883 Args.hasArg(OPT_interface_stub_version_EQ) 2884 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2885 : "ifs-v1"; 2886 if (ArgStr == "experimental-yaml-elf-v1" || 2887 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2888 ArgStr == "experimental-tapi-elf-v1") { 2889 std::string ErrorMessage = 2890 "Invalid interface stub format: " + ArgStr.str() + 2891 " is deprecated."; 2892 Diags.Report(diag::err_drv_invalid_value) 2893 << "Must specify a valid interface stub format type, ie: " 2894 "-interface-stub-version=ifs-v1" 2895 << ErrorMessage; 2896 ProgramAction = frontend::ParseSyntaxOnly; 2897 } else if (!ArgStr.starts_with("ifs-")) { 2898 std::string ErrorMessage = 2899 "Invalid interface stub format: " + ArgStr.str() + "."; 2900 Diags.Report(diag::err_drv_invalid_value) 2901 << "Must specify a valid interface stub format type, ie: " 2902 "-interface-stub-version=ifs-v1" 2903 << ErrorMessage; 2904 ProgramAction = frontend::ParseSyntaxOnly; 2905 } 2906 } 2907 2908 Opts.ProgramAction = *ProgramAction; 2909 2910 // Catch common mistakes when multiple actions are specified for cc1 (e.g. 2911 // -S -emit-llvm means -emit-llvm while -emit-llvm -S means -S). However, to 2912 // support driver `-c -Xclang ACTION` (-cc1 -emit-llvm file -main-file-name 2913 // X ACTION), we suppress the error when the two actions are separated by 2914 // -main-file-name. 2915 // 2916 // As an exception, accept composable -ast-dump*. 2917 if (!A->getSpelling().starts_with("-ast-dump")) { 2918 const Arg *SavedAction = nullptr; 2919 for (const Arg *AA : 2920 Args.filtered(OPT_Action_Group, OPT_main_file_name)) { 2921 if (AA->getOption().matches(OPT_main_file_name)) { 2922 SavedAction = nullptr; 2923 } else if (!SavedAction) { 2924 SavedAction = AA; 2925 } else { 2926 if (!A->getOption().matches(OPT_ast_dump_EQ)) 2927 Diags.Report(diag::err_fe_invalid_multiple_actions) 2928 << SavedAction->getSpelling() << A->getSpelling(); 2929 break; 2930 } 2931 } 2932 } 2933 } 2934 2935 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2936 Opts.Plugins.emplace_back(A->getValue(0)); 2937 Opts.ProgramAction = frontend::PluginAction; 2938 Opts.ActionName = A->getValue(); 2939 } 2940 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2941 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2942 2943 for (const std::string &Arg : 2944 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2945 std::string BlockName; 2946 unsigned MajorVersion; 2947 unsigned MinorVersion; 2948 bool Hashed; 2949 std::string UserInfo; 2950 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2951 MinorVersion, Hashed, UserInfo)) { 2952 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2953 2954 continue; 2955 } 2956 2957 // Add the testing module file extension. 2958 Opts.ModuleFileExtensions.push_back( 2959 std::make_shared<TestModuleFileExtension>( 2960 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2961 } 2962 2963 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2964 Opts.CodeCompletionAt = 2965 ParsedSourceLocation::FromString(A->getValue()); 2966 if (Opts.CodeCompletionAt.FileName.empty()) 2967 Diags.Report(diag::err_drv_invalid_value) 2968 << A->getAsString(Args) << A->getValue(); 2969 } 2970 2971 Opts.Plugins = Args.getAllArgValues(OPT_load); 2972 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2973 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2974 // Only the -fmodule-file=<file> form. 2975 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2976 StringRef Val = A->getValue(); 2977 if (!Val.contains('=')) 2978 Opts.ModuleFiles.push_back(std::string(Val)); 2979 } 2980 2981 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2982 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2983 << "-emit-module"; 2984 if (Args.hasArg(OPT_fclangir) || Args.hasArg(OPT_emit_cir)) 2985 Opts.UseClangIRPipeline = true; 2986 2987 if (Args.hasArg(OPT_aux_target_cpu)) 2988 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2989 if (Args.hasArg(OPT_aux_target_feature)) 2990 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2991 2992 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2993 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2994 Diags.Report(diag::err_drv_argument_not_allowed_with) 2995 << "ARC migration" << "ObjC migration"; 2996 } 2997 2998 InputKind DashX(Language::Unknown); 2999 if (const Arg *A = Args.getLastArg(OPT_x)) { 3000 StringRef XValue = A->getValue(); 3001 3002 // Parse suffixes: 3003 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 3004 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 3005 bool Preprocessed = XValue.consume_back("-cpp-output"); 3006 bool ModuleMap = XValue.consume_back("-module-map"); 3007 // Detect and consume the header indicator. 3008 bool IsHeader = 3009 XValue != "precompiled-header" && XValue.consume_back("-header"); 3010 3011 // If we have c++-{user,system}-header, that indicates a header unit input 3012 // likewise, if the user put -fmodule-header together with a header with an 3013 // absolute path (header-unit-header). 3014 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 3015 if (IsHeader || Preprocessed) { 3016 if (XValue.consume_back("-header-unit")) 3017 HUK = InputKind::HeaderUnit_Abs; 3018 else if (XValue.consume_back("-system")) 3019 HUK = InputKind::HeaderUnit_System; 3020 else if (XValue.consume_back("-user")) 3021 HUK = InputKind::HeaderUnit_User; 3022 } 3023 3024 // The value set by this processing is an un-preprocessed source which is 3025 // not intended to be a module map or header unit. 3026 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 3027 HUK == InputKind::HeaderUnit_None; 3028 3029 // Principal languages. 3030 DashX = llvm::StringSwitch<InputKind>(XValue) 3031 .Case("c", Language::C) 3032 .Case("cl", Language::OpenCL) 3033 .Case("clcpp", Language::OpenCLCXX) 3034 .Case("cuda", Language::CUDA) 3035 .Case("hip", Language::HIP) 3036 .Case("c++", Language::CXX) 3037 .Case("objective-c", Language::ObjC) 3038 .Case("objective-c++", Language::ObjCXX) 3039 .Case("renderscript", Language::RenderScript) 3040 .Case("hlsl", Language::HLSL) 3041 .Default(Language::Unknown); 3042 3043 // "objc[++]-cpp-output" is an acceptable synonym for 3044 // "objective-c[++]-cpp-output". 3045 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 3046 HUK == InputKind::HeaderUnit_None) 3047 DashX = llvm::StringSwitch<InputKind>(XValue) 3048 .Case("objc", Language::ObjC) 3049 .Case("objc++", Language::ObjCXX) 3050 .Default(Language::Unknown); 3051 3052 // Some special cases cannot be combined with suffixes. 3053 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 3054 HUK == InputKind::HeaderUnit_None) 3055 DashX = llvm::StringSwitch<InputKind>(XValue) 3056 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 3057 .Case("assembler-with-cpp", Language::Asm) 3058 .Cases("ast", "pcm", "precompiled-header", 3059 InputKind(Language::Unknown, InputKind::Precompiled)) 3060 .Case("ir", Language::LLVM_IR) 3061 .Case("cir", Language::CIR) 3062 .Default(Language::Unknown); 3063 3064 if (DashX.isUnknown()) 3065 Diags.Report(diag::err_drv_invalid_value) 3066 << A->getAsString(Args) << A->getValue(); 3067 3068 if (Preprocessed) 3069 DashX = DashX.getPreprocessed(); 3070 // A regular header is considered mutually exclusive with a header unit. 3071 if (HUK != InputKind::HeaderUnit_None) { 3072 DashX = DashX.withHeaderUnit(HUK); 3073 IsHeaderFile = true; 3074 } else if (IsHeaderFile) 3075 DashX = DashX.getHeader(); 3076 if (ModuleMap) 3077 DashX = DashX.withFormat(InputKind::ModuleMap); 3078 } 3079 3080 // '-' is the default input if none is given. 3081 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 3082 Opts.Inputs.clear(); 3083 if (Inputs.empty()) 3084 Inputs.push_back("-"); 3085 3086 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 3087 Inputs.size() > 1) 3088 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 3089 3090 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 3091 InputKind IK = DashX; 3092 if (IK.isUnknown()) { 3093 IK = FrontendOptions::getInputKindForExtension( 3094 StringRef(Inputs[i]).rsplit('.').second); 3095 // FIXME: Warn on this? 3096 if (IK.isUnknown()) 3097 IK = Language::C; 3098 // FIXME: Remove this hack. 3099 if (i == 0) 3100 DashX = IK; 3101 } 3102 3103 bool IsSystem = false; 3104 3105 // The -emit-module action implicitly takes a module map. 3106 if (Opts.ProgramAction == frontend::GenerateModule && 3107 IK.getFormat() == InputKind::Source) { 3108 IK = IK.withFormat(InputKind::ModuleMap); 3109 IsSystem = Opts.IsSystemModule; 3110 } 3111 3112 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 3113 } 3114 3115 Opts.DashX = DashX; 3116 3117 return Diags.getNumErrors() == NumErrorsBefore; 3118 } 3119 3120 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 3121 void *MainAddr) { 3122 std::string ClangExecutable = 3123 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 3124 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 3125 } 3126 3127 static void GenerateHeaderSearchArgs(const HeaderSearchOptions &Opts, 3128 ArgumentConsumer Consumer) { 3129 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 3130 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \ 3131 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 3132 #include "clang/Driver/Options.inc" 3133 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3134 3135 if (Opts.UseLibcxx) 3136 GenerateArg(Consumer, OPT_stdlib_EQ, "libc++"); 3137 3138 if (!Opts.ModuleCachePath.empty()) 3139 GenerateArg(Consumer, OPT_fmodules_cache_path, Opts.ModuleCachePath); 3140 3141 for (const auto &File : Opts.PrebuiltModuleFiles) 3142 GenerateArg(Consumer, OPT_fmodule_file, File.first + "=" + File.second); 3143 3144 for (const auto &Path : Opts.PrebuiltModulePaths) 3145 GenerateArg(Consumer, OPT_fprebuilt_module_path, Path); 3146 3147 for (const auto &Macro : Opts.ModulesIgnoreMacros) 3148 GenerateArg(Consumer, OPT_fmodules_ignore_macro, Macro.val()); 3149 3150 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 3151 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 3152 std::optional<bool> IsFramework, 3153 std::optional<bool> IgnoreSysRoot) { 3154 return llvm::is_contained(Groups, Entry.Group) && 3155 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 3156 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 3157 }; 3158 3159 auto It = Opts.UserEntries.begin(); 3160 auto End = Opts.UserEntries.end(); 3161 3162 // Add -I..., -F..., and -index-header-map options in order. 3163 for (; It < End && Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, 3164 std::nullopt, true); 3165 ++It) { 3166 OptSpecifier Opt = [It, Matches]() { 3167 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 3168 return OPT_F; 3169 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 3170 return OPT_I; 3171 if (Matches(*It, frontend::Angled, true, true)) 3172 return OPT_F; 3173 if (Matches(*It, frontend::Angled, false, true)) 3174 return OPT_I; 3175 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 3176 }(); 3177 3178 if (It->Group == frontend::IndexHeaderMap) 3179 GenerateArg(Consumer, OPT_index_header_map); 3180 GenerateArg(Consumer, Opt, It->Path); 3181 }; 3182 3183 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 3184 // have already been generated as "-I[xx]yy". If that's the case, their 3185 // position on command line was such that this has no semantic impact on 3186 // include paths. 3187 for (; It < End && 3188 Matches(*It, {frontend::After, frontend::Angled}, false, true); 3189 ++It) { 3190 OptSpecifier Opt = 3191 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 3192 GenerateArg(Consumer, Opt, It->Path); 3193 } 3194 3195 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3196 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3197 // command line was such that this has no semantic impact on include paths. 3198 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3199 GenerateArg(Consumer, OPT_idirafter, It->Path); 3200 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3201 GenerateArg(Consumer, OPT_iquote, It->Path); 3202 for (; It < End && Matches(*It, {frontend::System}, false, std::nullopt); 3203 ++It) 3204 GenerateArg(Consumer, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3205 It->Path); 3206 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3207 GenerateArg(Consumer, OPT_iframework, It->Path); 3208 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3209 GenerateArg(Consumer, OPT_iframeworkwithsysroot, It->Path); 3210 3211 // Add the paths for the various language specific isystem flags. 3212 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3213 GenerateArg(Consumer, OPT_c_isystem, It->Path); 3214 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3215 GenerateArg(Consumer, OPT_cxx_isystem, It->Path); 3216 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3217 GenerateArg(Consumer, OPT_objc_isystem, It->Path); 3218 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3219 GenerateArg(Consumer, OPT_objcxx_isystem, It->Path); 3220 3221 // Add the internal paths from a driver that detects standard include paths. 3222 // Note: Some paths that came from "-internal-isystem" arguments may have 3223 // already been generated as "-isystem". If that's the case, their position on 3224 // command line was such that this has no semantic impact on include paths. 3225 for (; It < End && 3226 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3227 ++It) { 3228 OptSpecifier Opt = It->Group == frontend::System 3229 ? OPT_internal_isystem 3230 : OPT_internal_externc_isystem; 3231 GenerateArg(Consumer, Opt, It->Path); 3232 } 3233 3234 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3235 3236 // Add the path prefixes which are implicitly treated as being system headers. 3237 for (const auto &P : Opts.SystemHeaderPrefixes) { 3238 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3239 : OPT_no_system_header_prefix; 3240 GenerateArg(Consumer, Opt, P.Prefix); 3241 } 3242 3243 for (const std::string &F : Opts.VFSOverlayFiles) 3244 GenerateArg(Consumer, OPT_ivfsoverlay, F); 3245 } 3246 3247 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3248 DiagnosticsEngine &Diags, 3249 const std::string &WorkingDir) { 3250 unsigned NumErrorsBefore = Diags.getNumErrors(); 3251 3252 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3253 3254 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \ 3255 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 3256 #include "clang/Driver/Options.inc" 3257 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3258 3259 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3260 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3261 3262 // Canonicalize -fmodules-cache-path before storing it. 3263 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3264 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3265 if (WorkingDir.empty()) 3266 llvm::sys::fs::make_absolute(P); 3267 else 3268 llvm::sys::fs::make_absolute(WorkingDir, P); 3269 } 3270 llvm::sys::path::remove_dots(P); 3271 Opts.ModuleCachePath = std::string(P); 3272 3273 // Only the -fmodule-file=<name>=<file> form. 3274 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3275 StringRef Val = A->getValue(); 3276 if (Val.contains('=')) { 3277 auto Split = Val.split('='); 3278 Opts.PrebuiltModuleFiles.insert_or_assign( 3279 std::string(Split.first), std::string(Split.second)); 3280 } 3281 } 3282 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3283 Opts.AddPrebuiltModulePath(A->getValue()); 3284 3285 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3286 StringRef MacroDef = A->getValue(); 3287 Opts.ModulesIgnoreMacros.insert( 3288 llvm::CachedHashString(MacroDef.split('=').first)); 3289 } 3290 3291 // Add -I..., -F..., and -index-header-map options in order. 3292 bool IsIndexHeaderMap = false; 3293 bool IsSysrootSpecified = 3294 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3295 3296 // Expand a leading `=` to the sysroot if one was passed (and it's not a 3297 // framework flag). 3298 auto PrefixHeaderPath = [IsSysrootSpecified, 3299 &Opts](const llvm::opt::Arg *A, 3300 bool IsFramework = false) -> std::string { 3301 assert(A->getNumValues() && "Unexpected empty search path flag!"); 3302 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3303 SmallString<32> Buffer; 3304 llvm::sys::path::append(Buffer, Opts.Sysroot, 3305 llvm::StringRef(A->getValue()).substr(1)); 3306 return std::string(Buffer); 3307 } 3308 return A->getValue(); 3309 }; 3310 3311 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3312 if (A->getOption().matches(OPT_index_header_map)) { 3313 // -index-header-map applies to the next -I or -F. 3314 IsIndexHeaderMap = true; 3315 continue; 3316 } 3317 3318 frontend::IncludeDirGroup Group = 3319 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3320 3321 bool IsFramework = A->getOption().matches(OPT_F); 3322 Opts.AddPath(PrefixHeaderPath(A, IsFramework), Group, IsFramework, 3323 /*IgnoreSysroot*/ true); 3324 IsIndexHeaderMap = false; 3325 } 3326 3327 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3328 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3329 for (const auto *A : 3330 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3331 if (A->getOption().matches(OPT_iprefix)) 3332 Prefix = A->getValue(); 3333 else if (A->getOption().matches(OPT_iwithprefix)) 3334 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3335 else 3336 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3337 } 3338 3339 for (const auto *A : Args.filtered(OPT_idirafter)) 3340 Opts.AddPath(PrefixHeaderPath(A), frontend::After, false, true); 3341 for (const auto *A : Args.filtered(OPT_iquote)) 3342 Opts.AddPath(PrefixHeaderPath(A), frontend::Quoted, false, true); 3343 3344 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) { 3345 if (A->getOption().matches(OPT_iwithsysroot)) { 3346 Opts.AddPath(A->getValue(), frontend::System, false, 3347 /*IgnoreSysRoot=*/false); 3348 continue; 3349 } 3350 Opts.AddPath(PrefixHeaderPath(A), frontend::System, false, true); 3351 } 3352 for (const auto *A : Args.filtered(OPT_iframework)) 3353 Opts.AddPath(A->getValue(), frontend::System, true, true); 3354 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3355 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3356 /*IgnoreSysRoot=*/false); 3357 3358 // Add the paths for the various language specific isystem flags. 3359 for (const auto *A : Args.filtered(OPT_c_isystem)) 3360 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3361 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3362 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3363 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3364 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3365 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3366 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3367 3368 // Add the internal paths from a driver that detects standard include paths. 3369 for (const auto *A : 3370 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3371 frontend::IncludeDirGroup Group = frontend::System; 3372 if (A->getOption().matches(OPT_internal_externc_isystem)) 3373 Group = frontend::ExternCSystem; 3374 Opts.AddPath(A->getValue(), Group, false, true); 3375 } 3376 3377 // Add the path prefixes which are implicitly treated as being system headers. 3378 for (const auto *A : 3379 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3380 Opts.AddSystemHeaderPrefix( 3381 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3382 3383 for (const auto *A : Args.filtered(OPT_ivfsoverlay, OPT_vfsoverlay)) 3384 Opts.AddVFSOverlayFile(A->getValue()); 3385 3386 return Diags.getNumErrors() == NumErrorsBefore; 3387 } 3388 3389 static void GenerateAPINotesArgs(const APINotesOptions &Opts, 3390 ArgumentConsumer Consumer) { 3391 if (!Opts.SwiftVersion.empty()) 3392 GenerateArg(Consumer, OPT_fapinotes_swift_version, 3393 Opts.SwiftVersion.getAsString()); 3394 3395 for (const auto &Path : Opts.ModuleSearchPaths) 3396 GenerateArg(Consumer, OPT_iapinotes_modules, Path); 3397 } 3398 3399 static void ParseAPINotesArgs(APINotesOptions &Opts, ArgList &Args, 3400 DiagnosticsEngine &diags) { 3401 if (const Arg *A = Args.getLastArg(OPT_fapinotes_swift_version)) { 3402 if (Opts.SwiftVersion.tryParse(A->getValue())) 3403 diags.Report(diag::err_drv_invalid_value) 3404 << A->getAsString(Args) << A->getValue(); 3405 } 3406 for (const Arg *A : Args.filtered(OPT_iapinotes_modules)) 3407 Opts.ModuleSearchPaths.push_back(A->getValue()); 3408 } 3409 3410 static void GeneratePointerAuthArgs(const LangOptions &Opts, 3411 ArgumentConsumer Consumer) { 3412 if (Opts.PointerAuthIntrinsics) 3413 GenerateArg(Consumer, OPT_fptrauth_intrinsics); 3414 if (Opts.PointerAuthCalls) 3415 GenerateArg(Consumer, OPT_fptrauth_calls); 3416 if (Opts.PointerAuthReturns) 3417 GenerateArg(Consumer, OPT_fptrauth_returns); 3418 if (Opts.PointerAuthIndirectGotos) 3419 GenerateArg(Consumer, OPT_fptrauth_indirect_gotos); 3420 if (Opts.PointerAuthAuthTraps) 3421 GenerateArg(Consumer, OPT_fptrauth_auth_traps); 3422 if (Opts.PointerAuthVTPtrAddressDiscrimination) 3423 GenerateArg(Consumer, OPT_fptrauth_vtable_pointer_address_discrimination); 3424 if (Opts.PointerAuthVTPtrTypeDiscrimination) 3425 GenerateArg(Consumer, OPT_fptrauth_vtable_pointer_type_discrimination); 3426 if (Opts.PointerAuthTypeInfoVTPtrDiscrimination) 3427 GenerateArg(Consumer, OPT_fptrauth_type_info_vtable_pointer_discrimination); 3428 3429 if (Opts.PointerAuthInitFini) 3430 GenerateArg(Consumer, OPT_fptrauth_init_fini); 3431 if (Opts.PointerAuthFunctionTypeDiscrimination) 3432 GenerateArg(Consumer, OPT_fptrauth_function_pointer_type_discrimination); 3433 } 3434 3435 static void ParsePointerAuthArgs(LangOptions &Opts, ArgList &Args, 3436 DiagnosticsEngine &Diags) { 3437 Opts.PointerAuthIntrinsics = Args.hasArg(OPT_fptrauth_intrinsics); 3438 Opts.PointerAuthCalls = Args.hasArg(OPT_fptrauth_calls); 3439 Opts.PointerAuthReturns = Args.hasArg(OPT_fptrauth_returns); 3440 Opts.PointerAuthIndirectGotos = Args.hasArg(OPT_fptrauth_indirect_gotos); 3441 Opts.PointerAuthAuthTraps = Args.hasArg(OPT_fptrauth_auth_traps); 3442 Opts.PointerAuthVTPtrAddressDiscrimination = 3443 Args.hasArg(OPT_fptrauth_vtable_pointer_address_discrimination); 3444 Opts.PointerAuthVTPtrTypeDiscrimination = 3445 Args.hasArg(OPT_fptrauth_vtable_pointer_type_discrimination); 3446 Opts.PointerAuthTypeInfoVTPtrDiscrimination = 3447 Args.hasArg(OPT_fptrauth_type_info_vtable_pointer_discrimination); 3448 3449 Opts.PointerAuthInitFini = Args.hasArg(OPT_fptrauth_init_fini); 3450 Opts.PointerAuthFunctionTypeDiscrimination = 3451 Args.hasArg(OPT_fptrauth_function_pointer_type_discrimination); 3452 } 3453 3454 /// Check if input file kind and language standard are compatible. 3455 static bool IsInputCompatibleWithStandard(InputKind IK, 3456 const LangStandard &S) { 3457 switch (IK.getLanguage()) { 3458 case Language::Unknown: 3459 case Language::LLVM_IR: 3460 case Language::CIR: 3461 llvm_unreachable("should not parse language flags for this input"); 3462 3463 case Language::C: 3464 case Language::ObjC: 3465 case Language::RenderScript: 3466 return S.getLanguage() == Language::C; 3467 3468 case Language::OpenCL: 3469 return S.getLanguage() == Language::OpenCL || 3470 S.getLanguage() == Language::OpenCLCXX; 3471 3472 case Language::OpenCLCXX: 3473 return S.getLanguage() == Language::OpenCLCXX; 3474 3475 case Language::CXX: 3476 case Language::ObjCXX: 3477 return S.getLanguage() == Language::CXX; 3478 3479 case Language::CUDA: 3480 // FIXME: What -std= values should be permitted for CUDA compilations? 3481 return S.getLanguage() == Language::CUDA || 3482 S.getLanguage() == Language::CXX; 3483 3484 case Language::HIP: 3485 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3486 3487 case Language::Asm: 3488 // Accept (and ignore) all -std= values. 3489 // FIXME: The -std= value is not ignored; it affects the tokenization 3490 // and preprocessing rules if we're preprocessing this asm input. 3491 return true; 3492 3493 case Language::HLSL: 3494 return S.getLanguage() == Language::HLSL; 3495 } 3496 3497 llvm_unreachable("unexpected input language"); 3498 } 3499 3500 /// Get language name for given input kind. 3501 static StringRef GetInputKindName(InputKind IK) { 3502 switch (IK.getLanguage()) { 3503 case Language::C: 3504 return "C"; 3505 case Language::ObjC: 3506 return "Objective-C"; 3507 case Language::CXX: 3508 return "C++"; 3509 case Language::ObjCXX: 3510 return "Objective-C++"; 3511 case Language::OpenCL: 3512 return "OpenCL"; 3513 case Language::OpenCLCXX: 3514 return "C++ for OpenCL"; 3515 case Language::CUDA: 3516 return "CUDA"; 3517 case Language::RenderScript: 3518 return "RenderScript"; 3519 case Language::HIP: 3520 return "HIP"; 3521 3522 case Language::Asm: 3523 return "Asm"; 3524 case Language::LLVM_IR: 3525 return "LLVM IR"; 3526 case Language::CIR: 3527 return "Clang IR"; 3528 3529 case Language::HLSL: 3530 return "HLSL"; 3531 3532 case Language::Unknown: 3533 break; 3534 } 3535 llvm_unreachable("unknown input language"); 3536 } 3537 3538 void CompilerInvocationBase::GenerateLangArgs(const LangOptions &Opts, 3539 ArgumentConsumer Consumer, 3540 const llvm::Triple &T, 3541 InputKind IK) { 3542 if (IK.getFormat() == InputKind::Precompiled || 3543 IK.getLanguage() == Language::LLVM_IR || 3544 IK.getLanguage() == Language::CIR) { 3545 if (Opts.ObjCAutoRefCount) 3546 GenerateArg(Consumer, OPT_fobjc_arc); 3547 if (Opts.PICLevel != 0) 3548 GenerateArg(Consumer, OPT_pic_level, Twine(Opts.PICLevel)); 3549 if (Opts.PIE) 3550 GenerateArg(Consumer, OPT_pic_is_pie); 3551 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3552 GenerateArg(Consumer, OPT_fsanitize_EQ, Sanitizer); 3553 3554 return; 3555 } 3556 3557 OptSpecifier StdOpt; 3558 switch (Opts.LangStd) { 3559 case LangStandard::lang_opencl10: 3560 case LangStandard::lang_opencl11: 3561 case LangStandard::lang_opencl12: 3562 case LangStandard::lang_opencl20: 3563 case LangStandard::lang_opencl30: 3564 case LangStandard::lang_openclcpp10: 3565 case LangStandard::lang_openclcpp2021: 3566 StdOpt = OPT_cl_std_EQ; 3567 break; 3568 default: 3569 StdOpt = OPT_std_EQ; 3570 break; 3571 } 3572 3573 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3574 GenerateArg(Consumer, StdOpt, LangStandard.getName()); 3575 3576 if (Opts.IncludeDefaultHeader) 3577 GenerateArg(Consumer, OPT_finclude_default_header); 3578 if (Opts.DeclareOpenCLBuiltins) 3579 GenerateArg(Consumer, OPT_fdeclare_opencl_builtins); 3580 3581 const LangOptions *LangOpts = &Opts; 3582 3583 #define LANG_OPTION_WITH_MARSHALLING(...) \ 3584 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 3585 #include "clang/Driver/Options.inc" 3586 #undef LANG_OPTION_WITH_MARSHALLING 3587 3588 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3589 3590 if (Opts.ObjC) { 3591 GenerateArg(Consumer, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString()); 3592 3593 if (Opts.GC == LangOptions::GCOnly) 3594 GenerateArg(Consumer, OPT_fobjc_gc_only); 3595 else if (Opts.GC == LangOptions::HybridGC) 3596 GenerateArg(Consumer, OPT_fobjc_gc); 3597 else if (Opts.ObjCAutoRefCount == 1) 3598 GenerateArg(Consumer, OPT_fobjc_arc); 3599 3600 if (Opts.ObjCWeakRuntime) 3601 GenerateArg(Consumer, OPT_fobjc_runtime_has_weak); 3602 3603 if (Opts.ObjCWeak) 3604 GenerateArg(Consumer, OPT_fobjc_weak); 3605 3606 if (Opts.ObjCSubscriptingLegacyRuntime) 3607 GenerateArg(Consumer, OPT_fobjc_subscripting_legacy_runtime); 3608 } 3609 3610 if (Opts.GNUCVersion != 0) { 3611 unsigned Major = Opts.GNUCVersion / 100 / 100; 3612 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3613 unsigned Patch = Opts.GNUCVersion % 100; 3614 GenerateArg(Consumer, OPT_fgnuc_version_EQ, 3615 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch)); 3616 } 3617 3618 if (Opts.IgnoreXCOFFVisibility) 3619 GenerateArg(Consumer, OPT_mignore_xcoff_visibility); 3620 3621 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3622 GenerateArg(Consumer, OPT_ftrapv); 3623 GenerateArg(Consumer, OPT_ftrapv_handler, Opts.OverflowHandler); 3624 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3625 GenerateArg(Consumer, OPT_fwrapv); 3626 } 3627 3628 if (Opts.MSCompatibilityVersion != 0) { 3629 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3630 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3631 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3632 GenerateArg(Consumer, OPT_fms_compatibility_version, 3633 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor)); 3634 } 3635 3636 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) || 3637 T.isOSzOS()) { 3638 if (!Opts.Trigraphs) 3639 GenerateArg(Consumer, OPT_fno_trigraphs); 3640 } else { 3641 if (Opts.Trigraphs) 3642 GenerateArg(Consumer, OPT_ftrigraphs); 3643 } 3644 3645 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3646 GenerateArg(Consumer, OPT_fblocks); 3647 3648 if (Opts.ConvergentFunctions && 3649 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice || 3650 Opts.HLSL)) 3651 GenerateArg(Consumer, OPT_fconvergent_functions); 3652 3653 if (Opts.NoBuiltin && !Opts.Freestanding) 3654 GenerateArg(Consumer, OPT_fno_builtin); 3655 3656 if (!Opts.NoBuiltin) 3657 for (const auto &Func : Opts.NoBuiltinFuncs) 3658 GenerateArg(Consumer, OPT_fno_builtin_, Func); 3659 3660 if (Opts.LongDoubleSize == 128) 3661 GenerateArg(Consumer, OPT_mlong_double_128); 3662 else if (Opts.LongDoubleSize == 64) 3663 GenerateArg(Consumer, OPT_mlong_double_64); 3664 else if (Opts.LongDoubleSize == 80) 3665 GenerateArg(Consumer, OPT_mlong_double_80); 3666 3667 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3668 3669 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3670 // '-fopenmp-targets='. 3671 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3672 GenerateArg(Consumer, OPT_fopenmp); 3673 3674 if (Opts.OpenMP != 51) 3675 GenerateArg(Consumer, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP)); 3676 3677 if (!Opts.OpenMPUseTLS) 3678 GenerateArg(Consumer, OPT_fnoopenmp_use_tls); 3679 3680 if (Opts.OpenMPIsTargetDevice) 3681 GenerateArg(Consumer, OPT_fopenmp_is_target_device); 3682 3683 if (Opts.OpenMPIRBuilder) 3684 GenerateArg(Consumer, OPT_fopenmp_enable_irbuilder); 3685 } 3686 3687 if (Opts.OpenMPSimd) { 3688 GenerateArg(Consumer, OPT_fopenmp_simd); 3689 3690 if (Opts.OpenMP != 51) 3691 GenerateArg(Consumer, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP)); 3692 } 3693 3694 if (Opts.OpenMPThreadSubscription) 3695 GenerateArg(Consumer, OPT_fopenmp_assume_threads_oversubscription); 3696 3697 if (Opts.OpenMPTeamSubscription) 3698 GenerateArg(Consumer, OPT_fopenmp_assume_teams_oversubscription); 3699 3700 if (Opts.OpenMPTargetDebug != 0) 3701 GenerateArg(Consumer, OPT_fopenmp_target_debug_EQ, 3702 Twine(Opts.OpenMPTargetDebug)); 3703 3704 if (Opts.OpenMPCUDANumSMs != 0) 3705 GenerateArg(Consumer, OPT_fopenmp_cuda_number_of_sm_EQ, 3706 Twine(Opts.OpenMPCUDANumSMs)); 3707 3708 if (Opts.OpenMPCUDABlocksPerSM != 0) 3709 GenerateArg(Consumer, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3710 Twine(Opts.OpenMPCUDABlocksPerSM)); 3711 3712 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3713 GenerateArg(Consumer, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3714 Twine(Opts.OpenMPCUDAReductionBufNum)); 3715 3716 if (!Opts.OMPTargetTriples.empty()) { 3717 std::string Targets; 3718 llvm::raw_string_ostream OS(Targets); 3719 llvm::interleave( 3720 Opts.OMPTargetTriples, OS, 3721 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3722 GenerateArg(Consumer, OPT_fopenmp_targets_EQ, OS.str()); 3723 } 3724 3725 if (!Opts.OMPHostIRFile.empty()) 3726 GenerateArg(Consumer, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile); 3727 3728 if (Opts.OpenMPCUDAMode) 3729 GenerateArg(Consumer, OPT_fopenmp_cuda_mode); 3730 3731 if (Opts.OpenACC) { 3732 GenerateArg(Consumer, OPT_fopenacc); 3733 if (!Opts.OpenACCMacroOverride.empty()) 3734 GenerateArg(Consumer, OPT_openacc_macro_override, 3735 Opts.OpenACCMacroOverride); 3736 } 3737 3738 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3739 // generated from CodeGenOptions. 3740 3741 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3742 GenerateArg(Consumer, OPT_ffp_contract, "fast"); 3743 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3744 GenerateArg(Consumer, OPT_ffp_contract, "on"); 3745 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3746 GenerateArg(Consumer, OPT_ffp_contract, "off"); 3747 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3748 GenerateArg(Consumer, OPT_ffp_contract, "fast-honor-pragmas"); 3749 3750 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3751 GenerateArg(Consumer, OPT_fsanitize_EQ, Sanitizer); 3752 3753 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3754 for (const std::string &F : Opts.NoSanitizeFiles) 3755 GenerateArg(Consumer, OPT_fsanitize_ignorelist_EQ, F); 3756 3757 switch (Opts.getClangABICompat()) { 3758 case LangOptions::ClangABI::Ver3_8: 3759 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "3.8"); 3760 break; 3761 case LangOptions::ClangABI::Ver4: 3762 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "4.0"); 3763 break; 3764 case LangOptions::ClangABI::Ver6: 3765 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "6.0"); 3766 break; 3767 case LangOptions::ClangABI::Ver7: 3768 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "7.0"); 3769 break; 3770 case LangOptions::ClangABI::Ver9: 3771 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "9.0"); 3772 break; 3773 case LangOptions::ClangABI::Ver11: 3774 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "11.0"); 3775 break; 3776 case LangOptions::ClangABI::Ver12: 3777 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "12.0"); 3778 break; 3779 case LangOptions::ClangABI::Ver14: 3780 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "14.0"); 3781 break; 3782 case LangOptions::ClangABI::Ver15: 3783 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "15.0"); 3784 break; 3785 case LangOptions::ClangABI::Ver17: 3786 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "17.0"); 3787 break; 3788 case LangOptions::ClangABI::Ver18: 3789 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "18.0"); 3790 break; 3791 case LangOptions::ClangABI::Latest: 3792 break; 3793 } 3794 3795 if (Opts.getSignReturnAddressScope() == 3796 LangOptions::SignReturnAddressScopeKind::All) 3797 GenerateArg(Consumer, OPT_msign_return_address_EQ, "all"); 3798 else if (Opts.getSignReturnAddressScope() == 3799 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3800 GenerateArg(Consumer, OPT_msign_return_address_EQ, "non-leaf"); 3801 3802 if (Opts.getSignReturnAddressKey() == 3803 LangOptions::SignReturnAddressKeyKind::BKey) 3804 GenerateArg(Consumer, OPT_msign_return_address_key_EQ, "b_key"); 3805 3806 if (Opts.CXXABI) 3807 GenerateArg(Consumer, OPT_fcxx_abi_EQ, 3808 TargetCXXABI::getSpelling(*Opts.CXXABI)); 3809 3810 if (Opts.RelativeCXXABIVTables) 3811 GenerateArg(Consumer, OPT_fexperimental_relative_cxx_abi_vtables); 3812 else 3813 GenerateArg(Consumer, OPT_fno_experimental_relative_cxx_abi_vtables); 3814 3815 if (Opts.UseTargetPathSeparator) 3816 GenerateArg(Consumer, OPT_ffile_reproducible); 3817 else 3818 GenerateArg(Consumer, OPT_fno_file_reproducible); 3819 3820 for (const auto &MP : Opts.MacroPrefixMap) 3821 GenerateArg(Consumer, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second); 3822 3823 if (!Opts.RandstructSeed.empty()) 3824 GenerateArg(Consumer, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed); 3825 } 3826 3827 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3828 InputKind IK, const llvm::Triple &T, 3829 std::vector<std::string> &Includes, 3830 DiagnosticsEngine &Diags) { 3831 unsigned NumErrorsBefore = Diags.getNumErrors(); 3832 3833 if (IK.getFormat() == InputKind::Precompiled || 3834 IK.getLanguage() == Language::LLVM_IR || 3835 IK.getLanguage() == Language::CIR) { 3836 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3837 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3838 // what the input type is. 3839 if (Args.hasArg(OPT_fobjc_arc)) 3840 Opts.ObjCAutoRefCount = 1; 3841 // PICLevel and PIELevel are needed during code generation and this should 3842 // be set regardless of the input type. 3843 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3844 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3845 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3846 Diags, Opts.Sanitize); 3847 3848 return Diags.getNumErrors() == NumErrorsBefore; 3849 } 3850 3851 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3852 // FIXME: Should we really be parsing this for an Language::Asm input? 3853 3854 // FIXME: Cleanup per-file based stuff. 3855 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3856 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3857 LangStd = LangStandard::getLangKind(A->getValue()); 3858 if (LangStd == LangStandard::lang_unspecified) { 3859 Diags.Report(diag::err_drv_invalid_value) 3860 << A->getAsString(Args) << A->getValue(); 3861 // Report supported standards with short description. 3862 for (unsigned KindValue = 0; 3863 KindValue != LangStandard::lang_unspecified; 3864 ++KindValue) { 3865 const LangStandard &Std = LangStandard::getLangStandardForKind( 3866 static_cast<LangStandard::Kind>(KindValue)); 3867 if (IsInputCompatibleWithStandard(IK, Std)) { 3868 auto Diag = Diags.Report(diag::note_drv_use_standard); 3869 Diag << Std.getName() << Std.getDescription(); 3870 unsigned NumAliases = 0; 3871 #define LANGSTANDARD(id, name, lang, desc, features) 3872 #define LANGSTANDARD_ALIAS(id, alias) \ 3873 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3874 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3875 #include "clang/Basic/LangStandards.def" 3876 Diag << NumAliases; 3877 #define LANGSTANDARD(id, name, lang, desc, features) 3878 #define LANGSTANDARD_ALIAS(id, alias) \ 3879 if (KindValue == LangStandard::lang_##id) Diag << alias; 3880 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3881 #include "clang/Basic/LangStandards.def" 3882 } 3883 } 3884 } else { 3885 // Valid standard, check to make sure language and standard are 3886 // compatible. 3887 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3888 if (!IsInputCompatibleWithStandard(IK, Std)) { 3889 Diags.Report(diag::err_drv_argument_not_allowed_with) 3890 << A->getAsString(Args) << GetInputKindName(IK); 3891 } 3892 } 3893 } 3894 3895 // -cl-std only applies for OpenCL language standards. 3896 // Override the -std option in this case. 3897 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3898 LangStandard::Kind OpenCLLangStd 3899 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3900 .Cases("cl", "CL", LangStandard::lang_opencl10) 3901 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3902 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3903 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3904 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3905 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3906 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3907 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3908 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3909 .Default(LangStandard::lang_unspecified); 3910 3911 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3912 Diags.Report(diag::err_drv_invalid_value) 3913 << A->getAsString(Args) << A->getValue(); 3914 } 3915 else 3916 LangStd = OpenCLLangStd; 3917 } 3918 3919 // These need to be parsed now. They are used to set OpenCL defaults. 3920 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3921 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3922 3923 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3924 3925 // The key paths of codegen options defined in Options.td start with 3926 // "LangOpts->". Let's provide the expected variable name and type. 3927 LangOptions *LangOpts = &Opts; 3928 3929 #define LANG_OPTION_WITH_MARSHALLING(...) \ 3930 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 3931 #include "clang/Driver/Options.inc" 3932 #undef LANG_OPTION_WITH_MARSHALLING 3933 3934 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3935 StringRef Name = A->getValue(); 3936 if (Name == "full" || Name == "branch") { 3937 Opts.CFProtectionBranch = 1; 3938 } 3939 } 3940 3941 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3942 !Args.hasArg(OPT_sycl_std_EQ)) { 3943 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3944 // provide -sycl-std=, we want to default it to whatever the default SYCL 3945 // version is. I could not find a way to express this with the options 3946 // tablegen because we still want this value to be SYCL_None when the user 3947 // is not in device or host mode. 3948 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3949 } 3950 3951 if (Opts.ObjC) { 3952 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3953 StringRef value = arg->getValue(); 3954 if (Opts.ObjCRuntime.tryParse(value)) 3955 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3956 } 3957 3958 if (Args.hasArg(OPT_fobjc_gc_only)) 3959 Opts.setGC(LangOptions::GCOnly); 3960 else if (Args.hasArg(OPT_fobjc_gc)) 3961 Opts.setGC(LangOptions::HybridGC); 3962 else if (Args.hasArg(OPT_fobjc_arc)) { 3963 Opts.ObjCAutoRefCount = 1; 3964 if (!Opts.ObjCRuntime.allowsARC()) 3965 Diags.Report(diag::err_arc_unsupported_on_runtime); 3966 } 3967 3968 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3969 // whether the feature is actually enabled. This is predominantly 3970 // determined by -fobjc-runtime, but we allow it to be overridden 3971 // from the command line for testing purposes. 3972 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3973 Opts.ObjCWeakRuntime = 1; 3974 else 3975 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3976 3977 // ObjCWeak determines whether __weak is actually enabled. 3978 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3979 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3980 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3981 assert(!Opts.ObjCWeak); 3982 } else if (Opts.getGC() != LangOptions::NonGC) { 3983 Diags.Report(diag::err_objc_weak_with_gc); 3984 } else if (!Opts.ObjCWeakRuntime) { 3985 Diags.Report(diag::err_objc_weak_unsupported); 3986 } else { 3987 Opts.ObjCWeak = 1; 3988 } 3989 } else if (Opts.ObjCAutoRefCount) { 3990 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3991 } 3992 3993 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3994 Opts.ObjCSubscriptingLegacyRuntime = 3995 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3996 } 3997 3998 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3999 // Check that the version has 1 to 3 components and the minor and patch 4000 // versions fit in two decimal digits. 4001 VersionTuple GNUCVer; 4002 bool Invalid = GNUCVer.tryParse(A->getValue()); 4003 unsigned Major = GNUCVer.getMajor(); 4004 unsigned Minor = GNUCVer.getMinor().value_or(0); 4005 unsigned Patch = GNUCVer.getSubminor().value_or(0); 4006 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 4007 Diags.Report(diag::err_drv_invalid_value) 4008 << A->getAsString(Args) << A->getValue(); 4009 } 4010 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 4011 } 4012 4013 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 4014 Opts.IgnoreXCOFFVisibility = 1; 4015 4016 if (Args.hasArg(OPT_ftrapv)) { 4017 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 4018 // Set the handler, if one is specified. 4019 Opts.OverflowHandler = 4020 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 4021 } 4022 else if (Args.hasArg(OPT_fwrapv)) 4023 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 4024 4025 Opts.MSCompatibilityVersion = 0; 4026 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 4027 VersionTuple VT; 4028 if (VT.tryParse(A->getValue())) 4029 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 4030 << A->getValue(); 4031 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 4032 VT.getMinor().value_or(0) * 100000 + 4033 VT.getSubminor().value_or(0); 4034 } 4035 4036 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 4037 // is specified, or -std is set to a conforming mode. 4038 // Trigraphs are disabled by default in C++17 and C23 onwards. 4039 // For z/OS, trigraphs are enabled by default (without regard to the above). 4040 Opts.Trigraphs = 4041 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) || 4042 T.isOSzOS(); 4043 Opts.Trigraphs = 4044 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 4045 4046 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 4047 && Opts.OpenCLVersion == 200); 4048 4049 Opts.ConvergentFunctions = Args.hasArg(OPT_fconvergent_functions) || 4050 Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 4051 Opts.SYCLIsDevice || Opts.HLSL; 4052 4053 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 4054 if (!Opts.NoBuiltin) 4055 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 4056 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 4057 if (A->getOption().matches(options::OPT_mlong_double_64)) 4058 Opts.LongDoubleSize = 64; 4059 else if (A->getOption().matches(options::OPT_mlong_double_80)) 4060 Opts.LongDoubleSize = 80; 4061 else if (A->getOption().matches(options::OPT_mlong_double_128)) 4062 Opts.LongDoubleSize = 128; 4063 else 4064 Opts.LongDoubleSize = 0; 4065 } 4066 if (Opts.FastRelaxedMath || Opts.CLUnsafeMath) 4067 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4068 4069 llvm::sort(Opts.ModuleFeatures); 4070 4071 // -mrtd option 4072 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 4073 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 4074 Diags.Report(diag::err_drv_argument_not_allowed_with) 4075 << A->getSpelling() << "-fdefault-calling-conv"; 4076 else { 4077 switch (T.getArch()) { 4078 case llvm::Triple::x86: 4079 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 4080 break; 4081 case llvm::Triple::m68k: 4082 Opts.setDefaultCallingConv(LangOptions::DCC_RtdCall); 4083 break; 4084 default: 4085 Diags.Report(diag::err_drv_argument_not_allowed_with) 4086 << A->getSpelling() << T.getTriple(); 4087 } 4088 } 4089 } 4090 4091 // Check if -fopenmp is specified and set default version to 5.0. 4092 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 51 : 0; 4093 // Check if -fopenmp-simd is specified. 4094 bool IsSimdSpecified = 4095 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 4096 /*Default=*/false); 4097 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 4098 Opts.OpenMPUseTLS = 4099 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 4100 Opts.OpenMPIsTargetDevice = 4101 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_target_device); 4102 Opts.OpenMPIRBuilder = 4103 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 4104 bool IsTargetSpecified = 4105 Opts.OpenMPIsTargetDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 4106 4107 Opts.ConvergentFunctions = 4108 Opts.ConvergentFunctions || Opts.OpenMPIsTargetDevice; 4109 4110 if (Opts.OpenMP || Opts.OpenMPSimd) { 4111 if (int Version = getLastArgIntValue( 4112 Args, OPT_fopenmp_version_EQ, 4113 (IsSimdSpecified || IsTargetSpecified) ? 51 : Opts.OpenMP, Diags)) 4114 Opts.OpenMP = Version; 4115 // Provide diagnostic when a given target is not expected to be an OpenMP 4116 // device or host. 4117 if (!Opts.OpenMPIsTargetDevice) { 4118 switch (T.getArch()) { 4119 default: 4120 break; 4121 // Add unsupported host targets here: 4122 case llvm::Triple::nvptx: 4123 case llvm::Triple::nvptx64: 4124 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 4125 break; 4126 } 4127 } 4128 } 4129 4130 // Set the flag to prevent the implementation from emitting device exception 4131 // handling code for those requiring so. 4132 if ((Opts.OpenMPIsTargetDevice && (T.isNVPTX() || T.isAMDGCN())) || 4133 Opts.OpenCLCPlusPlus) { 4134 4135 Opts.Exceptions = 0; 4136 Opts.CXXExceptions = 0; 4137 } 4138 if (Opts.OpenMPIsTargetDevice && T.isNVPTX()) { 4139 Opts.OpenMPCUDANumSMs = 4140 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 4141 Opts.OpenMPCUDANumSMs, Diags); 4142 Opts.OpenMPCUDABlocksPerSM = 4143 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 4144 Opts.OpenMPCUDABlocksPerSM, Diags); 4145 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 4146 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 4147 Opts.OpenMPCUDAReductionBufNum, Diags); 4148 } 4149 4150 // Set the value of the debugging flag used in the new offloading device RTL. 4151 // Set either by a specific value or to a default if not specified. 4152 if (Opts.OpenMPIsTargetDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 4153 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 4154 Opts.OpenMPTargetDebug = getLastArgIntValue( 4155 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 4156 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 4157 Opts.OpenMPTargetDebug = 1; 4158 } 4159 4160 if (Opts.OpenMPIsTargetDevice) { 4161 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 4162 Opts.OpenMPTeamSubscription = true; 4163 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 4164 Opts.OpenMPThreadSubscription = true; 4165 } 4166 4167 // Get the OpenMP target triples if any. 4168 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 4169 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 4170 auto getArchPtrSize = [](const llvm::Triple &T) { 4171 if (T.isArch16Bit()) 4172 return Arch16Bit; 4173 if (T.isArch32Bit()) 4174 return Arch32Bit; 4175 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 4176 return Arch64Bit; 4177 }; 4178 4179 for (unsigned i = 0; i < A->getNumValues(); ++i) { 4180 llvm::Triple TT(A->getValue(i)); 4181 4182 if (TT.getArch() == llvm::Triple::UnknownArch || 4183 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 4184 TT.getArch() == llvm::Triple::systemz || 4185 TT.getArch() == llvm::Triple::nvptx || 4186 TT.getArch() == llvm::Triple::nvptx64 || 4187 TT.getArch() == llvm::Triple::amdgcn || 4188 TT.getArch() == llvm::Triple::x86 || 4189 TT.getArch() == llvm::Triple::x86_64)) 4190 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 4191 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 4192 Diags.Report(diag::err_drv_incompatible_omp_arch) 4193 << A->getValue(i) << T.str(); 4194 else 4195 Opts.OMPTargetTriples.push_back(TT); 4196 } 4197 } 4198 4199 // Get OpenMP host file path if any and report if a non existent file is 4200 // found 4201 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 4202 Opts.OMPHostIRFile = A->getValue(); 4203 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 4204 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 4205 << Opts.OMPHostIRFile; 4206 } 4207 4208 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 4209 Opts.OpenMPCUDAMode = Opts.OpenMPIsTargetDevice && 4210 (T.isNVPTX() || T.isAMDGCN()) && 4211 Args.hasArg(options::OPT_fopenmp_cuda_mode); 4212 4213 // OpenACC Configuration. 4214 if (Args.hasArg(options::OPT_fopenacc)) { 4215 Opts.OpenACC = true; 4216 4217 if (Arg *A = Args.getLastArg(options::OPT_openacc_macro_override)) 4218 Opts.OpenACCMacroOverride = A->getValue(); 4219 } 4220 4221 // FIXME: Eliminate this dependency. 4222 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 4223 OptSize = getOptimizationLevelSize(Args); 4224 Opts.Optimize = Opt != 0; 4225 Opts.OptimizeSize = OptSize != 0; 4226 4227 // This is the __NO_INLINE__ define, which just depends on things like the 4228 // optimization level and -fno-inline, not actually whether the backend has 4229 // inlining enabled. 4230 Opts.NoInlineDefine = !Opts.Optimize; 4231 if (Arg *InlineArg = Args.getLastArg( 4232 options::OPT_finline_functions, options::OPT_finline_hint_functions, 4233 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 4234 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 4235 Opts.NoInlineDefine = true; 4236 4237 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 4238 StringRef Val = A->getValue(); 4239 if (Val == "fast") 4240 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4241 else if (Val == "on") 4242 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 4243 else if (Val == "off") 4244 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 4245 else if (Val == "fast-honor-pragmas") 4246 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 4247 else 4248 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 4249 } 4250 4251 // Parse -fsanitize= arguments. 4252 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4253 Diags, Opts.Sanitize); 4254 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 4255 std::vector<std::string> systemIgnorelists = 4256 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 4257 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 4258 systemIgnorelists.begin(), 4259 systemIgnorelists.end()); 4260 4261 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 4262 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4263 4264 StringRef Ver = A->getValue(); 4265 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4266 unsigned Major, Minor = 0; 4267 4268 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4269 // y or y.0 (4 <= y <= current version). 4270 if (!VerParts.first.starts_with("0") && 4271 !VerParts.first.getAsInteger(10, Major) && 3 <= Major && 4272 Major <= CLANG_VERSION_MAJOR && 4273 (Major == 3 4274 ? VerParts.second.size() == 1 && 4275 !VerParts.second.getAsInteger(10, Minor) 4276 : VerParts.first.size() == Ver.size() || VerParts.second == "0")) { 4277 // Got a valid version number. 4278 if (Major == 3 && Minor <= 8) 4279 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4280 else if (Major <= 4) 4281 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4282 else if (Major <= 6) 4283 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4284 else if (Major <= 7) 4285 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4286 else if (Major <= 9) 4287 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4288 else if (Major <= 11) 4289 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4290 else if (Major <= 12) 4291 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4292 else if (Major <= 14) 4293 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 4294 else if (Major <= 15) 4295 Opts.setClangABICompat(LangOptions::ClangABI::Ver15); 4296 else if (Major <= 17) 4297 Opts.setClangABICompat(LangOptions::ClangABI::Ver17); 4298 else if (Major <= 18) 4299 Opts.setClangABICompat(LangOptions::ClangABI::Ver18); 4300 } else if (Ver != "latest") { 4301 Diags.Report(diag::err_drv_invalid_value) 4302 << A->getAsString(Args) << A->getValue(); 4303 } 4304 } 4305 4306 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4307 StringRef SignScope = A->getValue(); 4308 4309 if (SignScope.equals_insensitive("none")) 4310 Opts.setSignReturnAddressScope( 4311 LangOptions::SignReturnAddressScopeKind::None); 4312 else if (SignScope.equals_insensitive("all")) 4313 Opts.setSignReturnAddressScope( 4314 LangOptions::SignReturnAddressScopeKind::All); 4315 else if (SignScope.equals_insensitive("non-leaf")) 4316 Opts.setSignReturnAddressScope( 4317 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4318 else 4319 Diags.Report(diag::err_drv_invalid_value) 4320 << A->getAsString(Args) << SignScope; 4321 4322 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4323 StringRef SignKey = A->getValue(); 4324 if (!SignScope.empty() && !SignKey.empty()) { 4325 if (SignKey == "a_key") 4326 Opts.setSignReturnAddressKey( 4327 LangOptions::SignReturnAddressKeyKind::AKey); 4328 else if (SignKey == "b_key") 4329 Opts.setSignReturnAddressKey( 4330 LangOptions::SignReturnAddressKeyKind::BKey); 4331 else 4332 Diags.Report(diag::err_drv_invalid_value) 4333 << A->getAsString(Args) << SignKey; 4334 } 4335 } 4336 } 4337 4338 // The value can be empty, which indicates the system default should be used. 4339 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4340 if (!CXXABI.empty()) { 4341 if (!TargetCXXABI::isABI(CXXABI)) { 4342 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4343 } else { 4344 auto Kind = TargetCXXABI::getKind(CXXABI); 4345 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4346 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4347 else 4348 Opts.CXXABI = Kind; 4349 } 4350 } 4351 4352 Opts.RelativeCXXABIVTables = 4353 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4354 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4355 TargetCXXABI::usesRelativeVTables(T)); 4356 4357 // RTTI is on by default. 4358 bool HasRTTI = !Args.hasArg(options::OPT_fno_rtti); 4359 Opts.OmitVTableRTTI = 4360 Args.hasFlag(options::OPT_fexperimental_omit_vtable_rtti, 4361 options::OPT_fno_experimental_omit_vtable_rtti, false); 4362 if (Opts.OmitVTableRTTI && HasRTTI) 4363 Diags.Report(diag::err_drv_using_omit_rtti_component_without_no_rtti); 4364 4365 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4366 auto Split = StringRef(A).split('='); 4367 Opts.MacroPrefixMap.insert( 4368 {std::string(Split.first), std::string(Split.second)}); 4369 } 4370 4371 Opts.UseTargetPathSeparator = 4372 !Args.getLastArg(OPT_fno_file_reproducible) && 4373 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4374 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4375 Args.getLastArg(OPT_ffile_reproducible)); 4376 4377 // Error if -mvscale-min is unbounded. 4378 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4379 unsigned VScaleMin; 4380 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4381 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4382 } 4383 4384 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4385 std::ifstream SeedFile(A->getValue(0)); 4386 4387 if (!SeedFile.is_open()) 4388 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4389 << A->getValue(0); 4390 4391 std::getline(SeedFile, Opts.RandstructSeed); 4392 } 4393 4394 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4395 Opts.RandstructSeed = A->getValue(0); 4396 4397 // Validate options for HLSL 4398 if (Opts.HLSL) { 4399 // TODO: Revisit restricting SPIR-V to logical once we've figured out how to 4400 // handle PhysicalStorageBuffer64 memory model 4401 if (T.isDXIL() || T.isSPIRVLogical()) { 4402 enum { ShaderModel, VulkanEnv, ShaderStage }; 4403 enum { OS, Environment }; 4404 4405 int ExpectedOS = T.isSPIRVLogical() ? VulkanEnv : ShaderModel; 4406 4407 if (T.getOSName().empty()) { 4408 Diags.Report(diag::err_drv_hlsl_bad_shader_required_in_target) 4409 << ExpectedOS << OS << T.str(); 4410 } else if (T.getEnvironmentName().empty()) { 4411 Diags.Report(diag::err_drv_hlsl_bad_shader_required_in_target) 4412 << ShaderStage << Environment << T.str(); 4413 } else if (!T.isShaderStageEnvironment()) { 4414 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4415 << ShaderStage << T.getEnvironmentName() << T.str(); 4416 } 4417 4418 if (T.isDXIL()) { 4419 if (!T.isShaderModelOS() || T.getOSVersion() == VersionTuple(0)) { 4420 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4421 << ShaderModel << T.getOSName() << T.str(); 4422 } 4423 // Validate that if fnative-half-type is given, that 4424 // the language standard is at least hlsl2018, and that 4425 // the target shader model is at least 6.2. 4426 if (Args.getLastArg(OPT_fnative_half_type)) { 4427 const LangStandard &Std = 4428 LangStandard::getLangStandardForKind(Opts.LangStd); 4429 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018 && 4430 T.getOSVersion() >= VersionTuple(6, 2))) 4431 Diags.Report(diag::err_drv_hlsl_16bit_types_unsupported) 4432 << "-enable-16bit-types" << true << Std.getName() 4433 << T.getOSVersion().getAsString(); 4434 } 4435 } else if (T.isSPIRVLogical()) { 4436 if (!T.isVulkanOS() || T.getVulkanVersion() == VersionTuple(0)) { 4437 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4438 << VulkanEnv << T.getOSName() << T.str(); 4439 } 4440 if (Args.getLastArg(OPT_fnative_half_type)) { 4441 const LangStandard &Std = 4442 LangStandard::getLangStandardForKind(Opts.LangStd); 4443 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018)) 4444 Diags.Report(diag::err_drv_hlsl_16bit_types_unsupported) 4445 << "-fnative-half-type" << false << Std.getName(); 4446 } 4447 } else { 4448 llvm_unreachable("expected DXIL or SPIR-V target"); 4449 } 4450 } else 4451 Diags.Report(diag::err_drv_hlsl_unsupported_target) << T.str(); 4452 } 4453 4454 return Diags.getNumErrors() == NumErrorsBefore; 4455 } 4456 4457 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4458 switch (Action) { 4459 case frontend::ASTDeclList: 4460 case frontend::ASTDump: 4461 case frontend::ASTPrint: 4462 case frontend::ASTView: 4463 case frontend::EmitAssembly: 4464 case frontend::EmitBC: 4465 case frontend::EmitCIR: 4466 case frontend::EmitHTML: 4467 case frontend::EmitLLVM: 4468 case frontend::EmitLLVMOnly: 4469 case frontend::EmitCodeGenOnly: 4470 case frontend::EmitObj: 4471 case frontend::ExtractAPI: 4472 case frontend::FixIt: 4473 case frontend::GenerateModule: 4474 case frontend::GenerateModuleInterface: 4475 case frontend::GenerateReducedModuleInterface: 4476 case frontend::GenerateHeaderUnit: 4477 case frontend::GeneratePCH: 4478 case frontend::GenerateInterfaceStubs: 4479 case frontend::ParseSyntaxOnly: 4480 case frontend::ModuleFileInfo: 4481 case frontend::VerifyPCH: 4482 case frontend::PluginAction: 4483 case frontend::RewriteObjC: 4484 case frontend::RewriteTest: 4485 case frontend::RunAnalysis: 4486 case frontend::TemplightDump: 4487 case frontend::MigrateSource: 4488 return false; 4489 4490 case frontend::DumpCompilerOptions: 4491 case frontend::DumpRawTokens: 4492 case frontend::DumpTokens: 4493 case frontend::InitOnly: 4494 case frontend::PrintPreamble: 4495 case frontend::PrintPreprocessedInput: 4496 case frontend::RewriteMacros: 4497 case frontend::RunPreprocessorOnly: 4498 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4499 return true; 4500 } 4501 llvm_unreachable("invalid frontend action"); 4502 } 4503 4504 static void GeneratePreprocessorArgs(const PreprocessorOptions &Opts, 4505 ArgumentConsumer Consumer, 4506 const LangOptions &LangOpts, 4507 const FrontendOptions &FrontendOpts, 4508 const CodeGenOptions &CodeGenOpts) { 4509 const PreprocessorOptions *PreprocessorOpts = &Opts; 4510 4511 #define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \ 4512 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4513 #include "clang/Driver/Options.inc" 4514 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4515 4516 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4517 GenerateArg(Consumer, OPT_pch_through_hdrstop_use); 4518 4519 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4520 GenerateArg(Consumer, OPT_error_on_deserialized_pch_decl, D); 4521 4522 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4523 GenerateArg(Consumer, OPT_preamble_bytes_EQ, 4524 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4525 (Opts.PrecompiledPreambleBytes.second ? "1" : "0")); 4526 4527 for (const auto &M : Opts.Macros) { 4528 // Don't generate __CET__ macro definitions. They are implied by the 4529 // -fcf-protection option that is generated elsewhere. 4530 if (M.first == "__CET__=1" && !M.second && 4531 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4532 continue; 4533 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4534 !CodeGenOpts.CFProtectionBranch) 4535 continue; 4536 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4537 CodeGenOpts.CFProtectionBranch) 4538 continue; 4539 4540 GenerateArg(Consumer, M.second ? OPT_U : OPT_D, M.first); 4541 } 4542 4543 for (const auto &I : Opts.Includes) { 4544 // Don't generate OpenCL includes. They are implied by other flags that are 4545 // generated elsewhere. 4546 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4547 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4548 I == "opencl-c.h")) 4549 continue; 4550 // Don't generate HLSL includes. They are implied by other flags that are 4551 // generated elsewhere. 4552 if (LangOpts.HLSL && I == "hlsl.h") 4553 continue; 4554 4555 GenerateArg(Consumer, OPT_include, I); 4556 } 4557 4558 for (const auto &CI : Opts.ChainedIncludes) 4559 GenerateArg(Consumer, OPT_chain_include, CI); 4560 4561 for (const auto &RF : Opts.RemappedFiles) 4562 GenerateArg(Consumer, OPT_remap_file, RF.first + ";" + RF.second); 4563 4564 if (Opts.SourceDateEpoch) 4565 GenerateArg(Consumer, OPT_source_date_epoch, Twine(*Opts.SourceDateEpoch)); 4566 4567 if (Opts.DefineTargetOSMacros) 4568 GenerateArg(Consumer, OPT_fdefine_target_os_macros); 4569 4570 for (const auto &EmbedEntry : Opts.EmbedEntries) 4571 GenerateArg(Consumer, OPT_embed_dir_EQ, EmbedEntry); 4572 4573 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4574 // generated elsewhere. 4575 } 4576 4577 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4578 DiagnosticsEngine &Diags, 4579 frontend::ActionKind Action, 4580 const FrontendOptions &FrontendOpts) { 4581 unsigned NumErrorsBefore = Diags.getNumErrors(); 4582 4583 PreprocessorOptions *PreprocessorOpts = &Opts; 4584 4585 #define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \ 4586 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4587 #include "clang/Driver/Options.inc" 4588 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4589 4590 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4591 Args.hasArg(OPT_pch_through_hdrstop_use); 4592 4593 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4594 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4595 4596 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4597 StringRef Value(A->getValue()); 4598 size_t Comma = Value.find(','); 4599 unsigned Bytes = 0; 4600 unsigned EndOfLine = 0; 4601 4602 if (Comma == StringRef::npos || 4603 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4604 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4605 Diags.Report(diag::err_drv_preamble_format); 4606 else { 4607 Opts.PrecompiledPreambleBytes.first = Bytes; 4608 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4609 } 4610 } 4611 4612 // Add the __CET__ macro if a CFProtection option is set. 4613 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4614 StringRef Name = A->getValue(); 4615 if (Name == "branch") 4616 Opts.addMacroDef("__CET__=1"); 4617 else if (Name == "return") 4618 Opts.addMacroDef("__CET__=2"); 4619 else if (Name == "full") 4620 Opts.addMacroDef("__CET__=3"); 4621 } 4622 4623 // Add macros from the command line. 4624 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4625 if (A->getOption().matches(OPT_D)) 4626 Opts.addMacroDef(A->getValue()); 4627 else 4628 Opts.addMacroUndef(A->getValue()); 4629 } 4630 4631 // Add the ordered list of -includes. 4632 for (const auto *A : Args.filtered(OPT_include)) 4633 Opts.Includes.emplace_back(A->getValue()); 4634 4635 for (const auto *A : Args.filtered(OPT_chain_include)) 4636 Opts.ChainedIncludes.emplace_back(A->getValue()); 4637 4638 for (const auto *A : Args.filtered(OPT_remap_file)) { 4639 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4640 4641 if (Split.second.empty()) { 4642 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4643 continue; 4644 } 4645 4646 Opts.addRemappedFile(Split.first, Split.second); 4647 } 4648 4649 if (const Arg *A = Args.getLastArg(OPT_source_date_epoch)) { 4650 StringRef Epoch = A->getValue(); 4651 // SOURCE_DATE_EPOCH, if specified, must be a non-negative decimal integer. 4652 // On time64 systems, pick 253402300799 (the UNIX timestamp of 4653 // 9999-12-31T23:59:59Z) as the upper bound. 4654 const uint64_t MaxTimestamp = 4655 std::min<uint64_t>(std::numeric_limits<time_t>::max(), 253402300799); 4656 uint64_t V; 4657 if (Epoch.getAsInteger(10, V) || V > MaxTimestamp) { 4658 Diags.Report(diag::err_fe_invalid_source_date_epoch) 4659 << Epoch << MaxTimestamp; 4660 } else { 4661 Opts.SourceDateEpoch = V; 4662 } 4663 } 4664 4665 for (const auto *A : Args.filtered(OPT_embed_dir_EQ)) { 4666 StringRef Val = A->getValue(); 4667 Opts.EmbedEntries.push_back(std::string(Val)); 4668 } 4669 4670 // Always avoid lexing editor placeholders when we're just running the 4671 // preprocessor as we never want to emit the 4672 // "editor placeholder in source file" error in PP only mode. 4673 if (isStrictlyPreprocessorAction(Action)) 4674 Opts.LexEditorPlaceholders = false; 4675 4676 Opts.DefineTargetOSMacros = 4677 Args.hasFlag(OPT_fdefine_target_os_macros, 4678 OPT_fno_define_target_os_macros, Opts.DefineTargetOSMacros); 4679 4680 return Diags.getNumErrors() == NumErrorsBefore; 4681 } 4682 4683 static void 4684 GeneratePreprocessorOutputArgs(const PreprocessorOutputOptions &Opts, 4685 ArgumentConsumer Consumer, 4686 frontend::ActionKind Action) { 4687 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4688 4689 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 4690 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4691 #include "clang/Driver/Options.inc" 4692 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4693 4694 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4695 if (Generate_dM) 4696 GenerateArg(Consumer, OPT_dM); 4697 if (!Generate_dM && Opts.ShowMacros) 4698 GenerateArg(Consumer, OPT_dD); 4699 if (Opts.DirectivesOnly) 4700 GenerateArg(Consumer, OPT_fdirectives_only); 4701 } 4702 4703 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4704 ArgList &Args, DiagnosticsEngine &Diags, 4705 frontend::ActionKind Action) { 4706 unsigned NumErrorsBefore = Diags.getNumErrors(); 4707 4708 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4709 4710 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 4711 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4712 #include "clang/Driver/Options.inc" 4713 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4714 4715 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4716 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4717 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4718 4719 return Diags.getNumErrors() == NumErrorsBefore; 4720 } 4721 4722 static void GenerateTargetArgs(const TargetOptions &Opts, 4723 ArgumentConsumer Consumer) { 4724 const TargetOptions *TargetOpts = &Opts; 4725 #define TARGET_OPTION_WITH_MARSHALLING(...) \ 4726 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4727 #include "clang/Driver/Options.inc" 4728 #undef TARGET_OPTION_WITH_MARSHALLING 4729 4730 if (!Opts.SDKVersion.empty()) 4731 GenerateArg(Consumer, OPT_target_sdk_version_EQ, 4732 Opts.SDKVersion.getAsString()); 4733 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4734 GenerateArg(Consumer, OPT_darwin_target_variant_sdk_version_EQ, 4735 Opts.DarwinTargetVariantSDKVersion.getAsString()); 4736 } 4737 4738 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4739 DiagnosticsEngine &Diags) { 4740 unsigned NumErrorsBefore = Diags.getNumErrors(); 4741 4742 TargetOptions *TargetOpts = &Opts; 4743 4744 #define TARGET_OPTION_WITH_MARSHALLING(...) \ 4745 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4746 #include "clang/Driver/Options.inc" 4747 #undef TARGET_OPTION_WITH_MARSHALLING 4748 4749 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4750 llvm::VersionTuple Version; 4751 if (Version.tryParse(A->getValue())) 4752 Diags.Report(diag::err_drv_invalid_value) 4753 << A->getAsString(Args) << A->getValue(); 4754 else 4755 Opts.SDKVersion = Version; 4756 } 4757 if (Arg *A = 4758 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4759 llvm::VersionTuple Version; 4760 if (Version.tryParse(A->getValue())) 4761 Diags.Report(diag::err_drv_invalid_value) 4762 << A->getAsString(Args) << A->getValue(); 4763 else 4764 Opts.DarwinTargetVariantSDKVersion = Version; 4765 } 4766 4767 return Diags.getNumErrors() == NumErrorsBefore; 4768 } 4769 4770 bool CompilerInvocation::CreateFromArgsImpl( 4771 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4772 DiagnosticsEngine &Diags, const char *Argv0) { 4773 unsigned NumErrorsBefore = Diags.getNumErrors(); 4774 4775 // Parse the arguments. 4776 const OptTable &Opts = getDriverOptTable(); 4777 llvm::opt::Visibility VisibilityMask(options::CC1Option); 4778 unsigned MissingArgIndex, MissingArgCount; 4779 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4780 MissingArgCount, VisibilityMask); 4781 LangOptions &LangOpts = Res.getLangOpts(); 4782 4783 // Check for missing argument error. 4784 if (MissingArgCount) 4785 Diags.Report(diag::err_drv_missing_argument) 4786 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4787 4788 // Issue errors on unknown arguments. 4789 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4790 auto ArgString = A->getAsString(Args); 4791 std::string Nearest; 4792 if (Opts.findNearest(ArgString, Nearest, VisibilityMask) > 1) 4793 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4794 else 4795 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4796 << ArgString << Nearest; 4797 } 4798 4799 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4800 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4801 ParseAnalyzerArgs(Res.getAnalyzerOpts(), Args, Diags); 4802 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4803 /*DefaultDiagColor=*/false); 4804 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4805 // FIXME: We shouldn't have to pass the DashX option around here 4806 InputKind DashX = Res.getFrontendOpts().DashX; 4807 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4808 llvm::Triple T(Res.getTargetOpts().Triple); 4809 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4810 Res.getFileSystemOpts().WorkingDir); 4811 ParseAPINotesArgs(Res.getAPINotesOpts(), Args, Diags); 4812 4813 ParsePointerAuthArgs(LangOpts, Args, Diags); 4814 4815 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4816 Diags); 4817 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4818 LangOpts.ObjCExceptions = 1; 4819 4820 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4821 if (Warning == "misexpect" && 4822 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4823 Res.getCodeGenOpts().MisExpect = true; 4824 } 4825 } 4826 4827 if (LangOpts.CUDA) { 4828 // During CUDA device-side compilation, the aux triple is the 4829 // triple used for host compilation. 4830 if (LangOpts.CUDAIsDevice) 4831 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4832 } 4833 4834 // Set the triple of the host for OpenMP device compile. 4835 if (LangOpts.OpenMPIsTargetDevice) 4836 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4837 4838 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4839 Res.getFrontendOpts().OutputFile, LangOpts); 4840 4841 // FIXME: Override value name discarding when asan or msan is used because the 4842 // backend passes depend on the name of the alloca in order to print out 4843 // names. 4844 Res.getCodeGenOpts().DiscardValueNames &= 4845 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4846 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4847 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4848 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4849 4850 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4851 Res.getFrontendOpts().ProgramAction, 4852 Res.getFrontendOpts()); 4853 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4854 Res.getFrontendOpts().ProgramAction); 4855 4856 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4857 Res.getFrontendOpts().ProgramAction, 4858 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4859 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4860 Res.getDependencyOutputOpts().Targets.empty()) 4861 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4862 4863 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4864 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4865 !Res.getLangOpts().Sanitize.empty()) { 4866 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4867 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4868 } 4869 4870 // Store the command-line for using in the CodeView backend. 4871 if (Res.getCodeGenOpts().CodeViewCommandLine) { 4872 Res.getCodeGenOpts().Argv0 = Argv0; 4873 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4874 } 4875 4876 // Set PGOOptions. Need to create a temporary VFS to read the profile 4877 // to determine the PGO type. 4878 if (!Res.getCodeGenOpts().ProfileInstrumentUsePath.empty()) { 4879 auto FS = 4880 createVFSFromOverlayFiles(Res.getHeaderSearchOpts().VFSOverlayFiles, 4881 Diags, llvm::vfs::getRealFileSystem()); 4882 setPGOUseInstrumentor(Res.getCodeGenOpts(), 4883 Res.getCodeGenOpts().ProfileInstrumentUsePath, *FS, 4884 Diags); 4885 } 4886 4887 FixupInvocation(Res, Diags, Args, DashX); 4888 4889 return Diags.getNumErrors() == NumErrorsBefore; 4890 } 4891 4892 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4893 ArrayRef<const char *> CommandLineArgs, 4894 DiagnosticsEngine &Diags, 4895 const char *Argv0) { 4896 CompilerInvocation DummyInvocation; 4897 4898 return RoundTrip( 4899 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4900 DiagnosticsEngine &Diags, const char *Argv0) { 4901 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4902 }, 4903 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4904 StringAllocator SA) { 4905 Args.push_back("-cc1"); 4906 Invocation.generateCC1CommandLine(Args, SA); 4907 }, 4908 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4909 } 4910 4911 std::string CompilerInvocation::getModuleHash() const { 4912 // FIXME: Consider using SHA1 instead of MD5. 4913 llvm::HashBuilder<llvm::MD5, llvm::endianness::native> HBuilder; 4914 4915 // Note: For QoI reasons, the things we use as a hash here should all be 4916 // dumped via the -module-info flag. 4917 4918 // Start the signature with the compiler version. 4919 HBuilder.add(getClangFullRepositoryVersion()); 4920 4921 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4922 // and getClangFullRepositoryVersion() doesn't include git revision. 4923 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4924 4925 // Extend the signature with the language options 4926 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4927 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4928 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4929 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4930 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4931 #include "clang/Basic/LangOptions.def" 4932 4933 HBuilder.addRange(getLangOpts().ModuleFeatures); 4934 4935 HBuilder.add(getLangOpts().ObjCRuntime); 4936 HBuilder.addRange(getLangOpts().CommentOpts.BlockCommandNames); 4937 4938 // Extend the signature with the target options. 4939 HBuilder.add(getTargetOpts().Triple, getTargetOpts().CPU, 4940 getTargetOpts().TuneCPU, getTargetOpts().ABI); 4941 HBuilder.addRange(getTargetOpts().FeaturesAsWritten); 4942 4943 // Extend the signature with preprocessor options. 4944 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4945 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4946 4947 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4948 for (const auto &Macro : getPreprocessorOpts().Macros) { 4949 // If we're supposed to ignore this macro for the purposes of modules, 4950 // don't put it into the hash. 4951 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4952 // Check whether we're ignoring this macro. 4953 StringRef MacroDef = Macro.first; 4954 if (hsOpts.ModulesIgnoreMacros.count( 4955 llvm::CachedHashString(MacroDef.split('=').first))) 4956 continue; 4957 } 4958 4959 HBuilder.add(Macro); 4960 } 4961 4962 // Extend the signature with the sysroot and other header search options. 4963 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4964 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4965 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4966 hsOpts.ModulesValidateDiagnosticOptions); 4967 HBuilder.add(hsOpts.ResourceDir); 4968 4969 if (hsOpts.ModulesStrictContextHash) { 4970 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4971 HBuilder.addRange(hsOpts.UserEntries); 4972 HBuilder.addRange(hsOpts.VFSOverlayFiles); 4973 4974 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4975 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4976 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4977 HBuilder.add(diagOpts.get##Name()); 4978 #include "clang/Basic/DiagnosticOptions.def" 4979 #undef DIAGOPT 4980 #undef ENUM_DIAGOPT 4981 } 4982 4983 // Extend the signature with the user build path. 4984 HBuilder.add(hsOpts.ModuleUserBuildPath); 4985 4986 // Extend the signature with the module file extensions. 4987 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4988 ext->hashExtension(HBuilder); 4989 4990 // Extend the signature with the Swift version for API notes. 4991 const APINotesOptions &APINotesOpts = getAPINotesOpts(); 4992 if (!APINotesOpts.SwiftVersion.empty()) { 4993 HBuilder.add(APINotesOpts.SwiftVersion.getMajor()); 4994 if (auto Minor = APINotesOpts.SwiftVersion.getMinor()) 4995 HBuilder.add(*Minor); 4996 if (auto Subminor = APINotesOpts.SwiftVersion.getSubminor()) 4997 HBuilder.add(*Subminor); 4998 if (auto Build = APINotesOpts.SwiftVersion.getBuild()) 4999 HBuilder.add(*Build); 5000 } 5001 5002 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 5003 // affects the debug info in the PCM. 5004 if (getCodeGenOpts().DebugTypeExtRefs) 5005 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 5006 5007 // Extend the signature with the affecting debug options. 5008 if (getHeaderSearchOpts().ModuleFormat == "obj") { 5009 #define DEBUGOPT(Name, Bits, Default) HBuilder.add(CodeGenOpts->Name); 5010 #define VALUE_DEBUGOPT(Name, Bits, Default) HBuilder.add(CodeGenOpts->Name); 5011 #define ENUM_DEBUGOPT(Name, Type, Bits, Default) \ 5012 HBuilder.add(static_cast<unsigned>(CodeGenOpts->get##Name())); 5013 #define BENIGN_DEBUGOPT(Name, Bits, Default) 5014 #define BENIGN_VALUE_DEBUGOPT(Name, Bits, Default) 5015 #define BENIGN_ENUM_DEBUGOPT(Name, Type, Bits, Default) 5016 #include "clang/Basic/DebugOptions.def" 5017 } 5018 5019 // Extend the signature with the enabled sanitizers, if at least one is 5020 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 5021 SanitizerSet SanHash = getLangOpts().Sanitize; 5022 SanHash.clear(getPPTransparentSanitizers()); 5023 if (!SanHash.empty()) 5024 HBuilder.add(SanHash.Mask); 5025 5026 llvm::MD5::MD5Result Result; 5027 HBuilder.getHasher().final(Result); 5028 uint64_t Hash = Result.high() ^ Result.low(); 5029 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 5030 } 5031 5032 void CompilerInvocationBase::generateCC1CommandLine( 5033 ArgumentConsumer Consumer) const { 5034 llvm::Triple T(getTargetOpts().Triple); 5035 5036 GenerateFileSystemArgs(getFileSystemOpts(), Consumer); 5037 GenerateMigratorArgs(getMigratorOpts(), Consumer); 5038 GenerateAnalyzerArgs(getAnalyzerOpts(), Consumer); 5039 GenerateDiagnosticArgs(getDiagnosticOpts(), Consumer, 5040 /*DefaultDiagColor=*/false); 5041 GenerateFrontendArgs(getFrontendOpts(), Consumer, getLangOpts().IsHeaderFile); 5042 GenerateTargetArgs(getTargetOpts(), Consumer); 5043 GenerateHeaderSearchArgs(getHeaderSearchOpts(), Consumer); 5044 GenerateAPINotesArgs(getAPINotesOpts(), Consumer); 5045 GeneratePointerAuthArgs(getLangOpts(), Consumer); 5046 GenerateLangArgs(getLangOpts(), Consumer, T, getFrontendOpts().DashX); 5047 GenerateCodeGenArgs(getCodeGenOpts(), Consumer, T, 5048 getFrontendOpts().OutputFile, &getLangOpts()); 5049 GeneratePreprocessorArgs(getPreprocessorOpts(), Consumer, getLangOpts(), 5050 getFrontendOpts(), getCodeGenOpts()); 5051 GeneratePreprocessorOutputArgs(getPreprocessorOutputOpts(), Consumer, 5052 getFrontendOpts().ProgramAction); 5053 GenerateDependencyOutputArgs(getDependencyOutputOpts(), Consumer); 5054 } 5055 5056 std::vector<std::string> CompilerInvocationBase::getCC1CommandLine() const { 5057 std::vector<std::string> Args{"-cc1"}; 5058 generateCC1CommandLine( 5059 [&Args](const Twine &Arg) { Args.push_back(Arg.str()); }); 5060 return Args; 5061 } 5062 5063 void CompilerInvocation::resetNonModularOptions() { 5064 getLangOpts().resetNonModularOptions(); 5065 getPreprocessorOpts().resetNonModularOptions(); 5066 getCodeGenOpts().resetNonModularOptions(getHeaderSearchOpts().ModuleFormat); 5067 } 5068 5069 void CompilerInvocation::clearImplicitModuleBuildOptions() { 5070 getLangOpts().ImplicitModules = false; 5071 getHeaderSearchOpts().ImplicitModuleMaps = false; 5072 getHeaderSearchOpts().ModuleCachePath.clear(); 5073 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false; 5074 getHeaderSearchOpts().BuildSessionTimestamp = 0; 5075 // The specific values we canonicalize to for pruning don't affect behaviour, 5076 /// so use the default values so they may be dropped from the command-line. 5077 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60; 5078 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60; 5079 } 5080 5081 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 5082 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 5083 DiagnosticsEngine &Diags) { 5084 return createVFSFromCompilerInvocation(CI, Diags, 5085 llvm::vfs::getRealFileSystem()); 5086 } 5087 5088 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 5089 clang::createVFSFromCompilerInvocation( 5090 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 5091 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 5092 return createVFSFromOverlayFiles(CI.getHeaderSearchOpts().VFSOverlayFiles, 5093 Diags, std::move(BaseFS)); 5094 } 5095 5096 IntrusiveRefCntPtr<llvm::vfs::FileSystem> clang::createVFSFromOverlayFiles( 5097 ArrayRef<std::string> VFSOverlayFiles, DiagnosticsEngine &Diags, 5098 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 5099 if (VFSOverlayFiles.empty()) 5100 return BaseFS; 5101 5102 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 5103 // earlier vfs files are on the bottom 5104 for (const auto &File : VFSOverlayFiles) { 5105 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 5106 Result->getBufferForFile(File); 5107 if (!Buffer) { 5108 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 5109 continue; 5110 } 5111 5112 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 5113 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 5114 /*DiagContext*/ nullptr, Result); 5115 if (!FS) { 5116 Diags.Report(diag::err_invalid_vfs_overlay) << File; 5117 continue; 5118 } 5119 5120 Result = FS; 5121 } 5122 return Result; 5123 } 5124