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 OPTTABLE_STR_TABLE_CODE 281 #include "clang/Driver/Options.inc" 282 #undef OPTTABLE_STR_TABLE_CODE 283 284 static llvm::StringRef lookupStrInTable(unsigned Offset) { 285 return &OptionStrTable[Offset]; 286 } 287 288 #define SIMPLE_ENUM_VALUE_TABLE 289 #include "clang/Driver/Options.inc" 290 #undef SIMPLE_ENUM_VALUE_TABLE 291 292 static std::optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 293 unsigned TableIndex, 294 const ArgList &Args, 295 DiagnosticsEngine &Diags) { 296 if (Args.hasArg(Opt)) 297 return true; 298 return std::nullopt; 299 } 300 301 static std::optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, 302 unsigned, 303 const ArgList &Args, 304 DiagnosticsEngine &) { 305 if (Args.hasArg(Opt)) 306 return false; 307 return std::nullopt; 308 } 309 310 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 311 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 312 /// unnecessary template instantiations and just ignore it with a variadic 313 /// argument. 314 static void denormalizeSimpleFlag(ArgumentConsumer Consumer, 315 unsigned SpellingOffset, Option::OptionClass, 316 unsigned, /*T*/...) { 317 Consumer(lookupStrInTable(SpellingOffset)); 318 } 319 static void denormalizeSimpleFlag(ArgumentConsumer Consumer, 320 const Twine &Spelling, Option::OptionClass, 321 unsigned, /*T*/...) { 322 Consumer(Spelling); 323 } 324 325 template <typename T> static constexpr bool is_uint64_t_convertible() { 326 return !std::is_same_v<T, uint64_t> && llvm::is_integral_or_enum<T>::value; 327 } 328 329 template <typename T, 330 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 331 static auto makeFlagToValueNormalizer(T Value) { 332 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 333 DiagnosticsEngine &) -> std::optional<T> { 334 if (Args.hasArg(Opt)) 335 return Value; 336 return std::nullopt; 337 }; 338 } 339 340 template <typename T, 341 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 342 static auto makeFlagToValueNormalizer(T Value) { 343 return makeFlagToValueNormalizer(uint64_t(Value)); 344 } 345 346 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 347 OptSpecifier OtherOpt) { 348 return [Value, OtherValue, 349 OtherOpt](OptSpecifier Opt, unsigned, const ArgList &Args, 350 DiagnosticsEngine &) -> std::optional<bool> { 351 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 352 return A->getOption().matches(Opt) ? Value : OtherValue; 353 } 354 return std::nullopt; 355 }; 356 } 357 358 static auto makeBooleanOptionDenormalizer(bool Value) { 359 return [Value](ArgumentConsumer Consumer, unsigned SpellingOffset, 360 Option::OptionClass, unsigned, bool KeyPath) { 361 if (KeyPath == Value) 362 Consumer(lookupStrInTable(SpellingOffset)); 363 }; 364 } 365 366 static void denormalizeStringImpl(ArgumentConsumer Consumer, 367 const Twine &Spelling, 368 Option::OptionClass OptClass, unsigned, 369 const Twine &Value) { 370 switch (OptClass) { 371 case Option::SeparateClass: 372 case Option::JoinedOrSeparateClass: 373 case Option::JoinedAndSeparateClass: 374 Consumer(Spelling); 375 Consumer(Value); 376 break; 377 case Option::JoinedClass: 378 case Option::CommaJoinedClass: 379 Consumer(Spelling + Value); 380 break; 381 default: 382 llvm_unreachable("Cannot denormalize an option with option class " 383 "incompatible with string denormalization."); 384 } 385 } 386 387 template <typename T> 388 static void 389 denormalizeString(ArgumentConsumer Consumer, unsigned SpellingOffset, 390 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 391 denormalizeStringImpl(Consumer, lookupStrInTable(SpellingOffset), OptClass, 392 TableIndex, Twine(Value)); 393 } 394 395 template <typename T> 396 static void denormalizeString(ArgumentConsumer Consumer, const Twine &Spelling, 397 Option::OptionClass OptClass, unsigned TableIndex, 398 T Value) { 399 denormalizeStringImpl(Consumer, Spelling, OptClass, TableIndex, Twine(Value)); 400 } 401 402 static std::optional<SimpleEnumValue> 403 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 404 for (int I = 0, E = Table.Size; I != E; ++I) 405 if (Name == Table.Table[I].Name) 406 return Table.Table[I]; 407 408 return std::nullopt; 409 } 410 411 static std::optional<SimpleEnumValue> 412 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 413 for (int I = 0, E = Table.Size; I != E; ++I) 414 if (Value == Table.Table[I].Value) 415 return Table.Table[I]; 416 417 return std::nullopt; 418 } 419 420 static std::optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 421 unsigned TableIndex, 422 const ArgList &Args, 423 DiagnosticsEngine &Diags) { 424 assert(TableIndex < SimpleEnumValueTablesSize); 425 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 426 427 auto *Arg = Args.getLastArg(Opt); 428 if (!Arg) 429 return std::nullopt; 430 431 StringRef ArgValue = Arg->getValue(); 432 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 433 return MaybeEnumVal->Value; 434 435 Diags.Report(diag::err_drv_invalid_value) 436 << Arg->getAsString(Args) << ArgValue; 437 return std::nullopt; 438 } 439 440 static void denormalizeSimpleEnumImpl(ArgumentConsumer Consumer, 441 unsigned SpellingOffset, 442 Option::OptionClass OptClass, 443 unsigned TableIndex, unsigned Value) { 444 assert(TableIndex < SimpleEnumValueTablesSize); 445 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 446 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 447 denormalizeString(Consumer, lookupStrInTable(SpellingOffset), OptClass, 448 TableIndex, MaybeEnumVal->Name); 449 } else { 450 llvm_unreachable("The simple enum value was not correctly defined in " 451 "the tablegen option description"); 452 } 453 } 454 455 template <typename T> 456 static void denormalizeSimpleEnum(ArgumentConsumer Consumer, 457 unsigned SpellingOffset, 458 Option::OptionClass OptClass, 459 unsigned TableIndex, T Value) { 460 return denormalizeSimpleEnumImpl(Consumer, SpellingOffset, OptClass, 461 TableIndex, static_cast<unsigned>(Value)); 462 } 463 464 static std::optional<std::string> normalizeString(OptSpecifier Opt, 465 int TableIndex, 466 const ArgList &Args, 467 DiagnosticsEngine &Diags) { 468 auto *Arg = Args.getLastArg(Opt); 469 if (!Arg) 470 return std::nullopt; 471 return std::string(Arg->getValue()); 472 } 473 474 template <typename IntTy> 475 static std::optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 476 const ArgList &Args, 477 DiagnosticsEngine &Diags) { 478 auto *Arg = Args.getLastArg(Opt); 479 if (!Arg) 480 return std::nullopt; 481 IntTy Res; 482 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 483 Diags.Report(diag::err_drv_invalid_int_value) 484 << Arg->getAsString(Args) << Arg->getValue(); 485 return std::nullopt; 486 } 487 return Res; 488 } 489 490 static std::optional<std::vector<std::string>> 491 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 492 DiagnosticsEngine &) { 493 return Args.getAllArgValues(Opt); 494 } 495 496 static void denormalizeStringVector(ArgumentConsumer Consumer, 497 unsigned SpellingOffset, 498 Option::OptionClass OptClass, 499 unsigned TableIndex, 500 const std::vector<std::string> &Values) { 501 switch (OptClass) { 502 case Option::CommaJoinedClass: { 503 std::string CommaJoinedValue; 504 if (!Values.empty()) { 505 CommaJoinedValue.append(Values.front()); 506 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 507 CommaJoinedValue.append(","); 508 CommaJoinedValue.append(Value); 509 } 510 } 511 denormalizeString(Consumer, SpellingOffset, 512 Option::OptionClass::JoinedClass, TableIndex, 513 CommaJoinedValue); 514 break; 515 } 516 case Option::JoinedClass: 517 case Option::SeparateClass: 518 case Option::JoinedOrSeparateClass: 519 for (const std::string &Value : Values) 520 denormalizeString(Consumer, SpellingOffset, OptClass, TableIndex, Value); 521 break; 522 default: 523 llvm_unreachable("Cannot denormalize an option with option class " 524 "incompatible with string vector denormalization."); 525 } 526 } 527 528 static std::optional<std::string> normalizeTriple(OptSpecifier Opt, 529 int TableIndex, 530 const ArgList &Args, 531 DiagnosticsEngine &Diags) { 532 auto *Arg = Args.getLastArg(Opt); 533 if (!Arg) 534 return std::nullopt; 535 return llvm::Triple::normalize(Arg->getValue()); 536 } 537 538 template <typename T, typename U> 539 static T mergeForwardValue(T KeyPath, U Value) { 540 return static_cast<T>(Value); 541 } 542 543 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 544 return KeyPath | Value; 545 } 546 547 template <typename T> static T extractForwardValue(T KeyPath) { 548 return KeyPath; 549 } 550 551 template <typename T, typename U, U Value> 552 static T extractMaskValue(T KeyPath) { 553 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 554 } 555 556 #define PARSE_OPTION_WITH_MARSHALLING( \ 557 ARGS, DIAGS, PREFIX_TYPE, SPELLING_OFFSET, ID, KIND, GROUP, ALIAS, \ 558 ALIASARGS, FLAGS, VISIBILITY, PARAM, HELPTEXT, HELPTEXTSFORVARIANTS, \ 559 METAVAR, VALUES, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 560 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, \ 561 TABLE_INDEX) \ 562 if ((VISIBILITY) & options::CC1Option) { \ 563 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 564 if (IMPLIED_CHECK) \ 565 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 566 if (SHOULD_PARSE) \ 567 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 568 KEYPATH = \ 569 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 570 } 571 572 // Capture the extracted value as a lambda argument to avoid potential issues 573 // with lifetime extension of the reference. 574 #define GENERATE_OPTION_WITH_MARSHALLING( \ 575 CONSUMER, PREFIX_TYPE, SPELLING_OFFSET, ID, KIND, GROUP, ALIAS, ALIASARGS, \ 576 FLAGS, VISIBILITY, PARAM, HELPTEXT, HELPTEXTSFORVARIANTS, METAVAR, VALUES, \ 577 SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, IMPLIED_CHECK, \ 578 IMPLIED_VALUE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX) \ 579 if ((VISIBILITY) & options::CC1Option) { \ 580 [&](const auto &Extracted) { \ 581 if (ALWAYS_EMIT || \ 582 (Extracted != \ 583 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 584 : (DEFAULT_VALUE)))) \ 585 DENORMALIZER(CONSUMER, SPELLING_OFFSET, Option::KIND##Class, \ 586 TABLE_INDEX, Extracted); \ 587 }(EXTRACTOR(KEYPATH)); \ 588 } 589 590 static StringRef GetInputKindName(InputKind IK); 591 592 static bool FixupInvocation(CompilerInvocation &Invocation, 593 DiagnosticsEngine &Diags, const ArgList &Args, 594 InputKind IK) { 595 unsigned NumErrorsBefore = Diags.getNumErrors(); 596 597 LangOptions &LangOpts = Invocation.getLangOpts(); 598 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 599 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 600 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 601 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 602 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 603 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 604 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 605 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 606 if (FrontendOpts.ShowStats) 607 CodeGenOpts.ClearASTBeforeBackend = false; 608 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 609 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 610 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 611 LangOpts.CurrentModule = LangOpts.ModuleName; 612 613 llvm::Triple T(TargetOpts.Triple); 614 llvm::Triple::ArchType Arch = T.getArch(); 615 616 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 617 CodeGenOpts.LargeDataThreshold = TargetOpts.LargeDataThreshold; 618 619 if (LangOpts.getExceptionHandling() != 620 LangOptions::ExceptionHandlingKind::None && 621 T.isWindowsMSVCEnvironment()) 622 Diags.Report(diag::err_fe_invalid_exception_model) 623 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 624 625 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 626 Diags.Report(diag::warn_c_kext); 627 628 if (LangOpts.NewAlignOverride && 629 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 630 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 631 Diags.Report(diag::err_fe_invalid_alignment) 632 << A->getAsString(Args) << A->getValue(); 633 LangOpts.NewAlignOverride = 0; 634 } 635 636 // The -f[no-]raw-string-literals option is only valid in C and in C++ 637 // standards before C++11. 638 if (LangOpts.CPlusPlus11) { 639 if (Args.hasArg(OPT_fraw_string_literals, OPT_fno_raw_string_literals)) { 640 Args.claimAllArgs(OPT_fraw_string_literals, OPT_fno_raw_string_literals); 641 Diags.Report(diag::warn_drv_fraw_string_literals_in_cxx11) 642 << bool(LangOpts.RawStringLiterals); 643 } 644 645 // Do not allow disabling raw string literals in C++11 or later. 646 LangOpts.RawStringLiterals = true; 647 } 648 649 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 650 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 651 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 652 << "-fsycl-is-host"; 653 654 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 655 Diags.Report(diag::err_drv_argument_not_allowed_with) 656 << "-fgnu89-inline" << GetInputKindName(IK); 657 658 if (Args.hasArg(OPT_hlsl_entrypoint) && !LangOpts.HLSL) 659 Diags.Report(diag::err_drv_argument_not_allowed_with) 660 << "-hlsl-entry" << GetInputKindName(IK); 661 662 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 663 Diags.Report(diag::warn_ignored_hip_only_option) 664 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 665 666 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 667 Diags.Report(diag::warn_ignored_hip_only_option) 668 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 669 670 // When these options are used, the compiler is allowed to apply 671 // optimizations that may affect the final result. For example 672 // (x+y)+z is transformed to x+(y+z) but may not give the same 673 // final result; it's not value safe. 674 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF 675 // or NaN. Final result may then differ. An error is issued when the eval 676 // method is set with one of these options. 677 if (Args.hasArg(OPT_ffp_eval_method_EQ)) { 678 if (LangOpts.ApproxFunc) 679 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 0; 680 if (LangOpts.AllowFPReassoc) 681 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 1; 682 if (LangOpts.AllowRecip) 683 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 2; 684 } 685 686 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 687 // This option should be deprecated for CL > 1.0 because 688 // this option was added for compatibility with OpenCL 1.0. 689 if (Args.getLastArg(OPT_cl_strict_aliasing) && 690 (LangOpts.getOpenCLCompatibleVersion() > 100)) 691 Diags.Report(diag::warn_option_invalid_ocl_version) 692 << LangOpts.getOpenCLVersionString() 693 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 694 695 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 696 auto DefaultCC = LangOpts.getDefaultCallingConv(); 697 698 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 699 DefaultCC == LangOptions::DCC_StdCall) && 700 Arch != llvm::Triple::x86; 701 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 702 DefaultCC == LangOptions::DCC_RegCall) && 703 !T.isX86(); 704 emitError |= DefaultCC == LangOptions::DCC_RtdCall && Arch != llvm::Triple::m68k; 705 if (emitError) 706 Diags.Report(diag::err_drv_argument_not_allowed_with) 707 << A->getSpelling() << T.getTriple(); 708 } 709 710 return Diags.getNumErrors() == NumErrorsBefore; 711 } 712 713 //===----------------------------------------------------------------------===// 714 // Deserialization (from args) 715 //===----------------------------------------------------------------------===// 716 717 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 718 DiagnosticsEngine &Diags) { 719 unsigned DefaultOpt = 0; 720 if ((IK.getLanguage() == Language::OpenCL || 721 IK.getLanguage() == Language::OpenCLCXX) && 722 !Args.hasArg(OPT_cl_opt_disable)) 723 DefaultOpt = 2; 724 725 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 726 if (A->getOption().matches(options::OPT_O0)) 727 return 0; 728 729 if (A->getOption().matches(options::OPT_Ofast)) 730 return 3; 731 732 assert(A->getOption().matches(options::OPT_O)); 733 734 StringRef S(A->getValue()); 735 if (S == "s" || S == "z") 736 return 2; 737 738 if (S == "g") 739 return 1; 740 741 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 742 } 743 744 return DefaultOpt; 745 } 746 747 static unsigned getOptimizationLevelSize(ArgList &Args) { 748 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 749 if (A->getOption().matches(options::OPT_O)) { 750 switch (A->getValue()[0]) { 751 default: 752 return 0; 753 case 's': 754 return 1; 755 case 'z': 756 return 2; 757 } 758 } 759 } 760 return 0; 761 } 762 763 static void GenerateArg(ArgumentConsumer Consumer, 764 llvm::opt::OptSpecifier OptSpecifier) { 765 Option Opt = getDriverOptTable().getOption(OptSpecifier); 766 denormalizeSimpleFlag(Consumer, Opt.getPrefixedName(), 767 Option::OptionClass::FlagClass, 0); 768 } 769 770 static void GenerateArg(ArgumentConsumer Consumer, 771 llvm::opt::OptSpecifier OptSpecifier, 772 const Twine &Value) { 773 Option Opt = getDriverOptTable().getOption(OptSpecifier); 774 denormalizeString(Consumer, Opt.getPrefixedName(), Opt.getKind(), 0, Value); 775 } 776 777 // Parse command line arguments into CompilerInvocation. 778 using ParseFn = 779 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 780 DiagnosticsEngine &, const char *)>; 781 782 // Generate command line arguments from CompilerInvocation. 783 using GenerateFn = llvm::function_ref<void( 784 CompilerInvocation &, SmallVectorImpl<const char *> &, 785 CompilerInvocation::StringAllocator)>; 786 787 /// May perform round-trip of command line arguments. By default, the round-trip 788 /// is enabled in assert builds. This can be overwritten at run-time via the 789 /// "-round-trip-args" and "-no-round-trip-args" command line flags, or via the 790 /// ForceRoundTrip parameter. 791 /// 792 /// During round-trip, the command line arguments are parsed into a dummy 793 /// CompilerInvocation, which is used to generate the command line arguments 794 /// again. The real CompilerInvocation is then created by parsing the generated 795 /// arguments, not the original ones. This (in combination with tests covering 796 /// argument behavior) ensures the generated command line is complete (doesn't 797 /// drop/mangle any arguments). 798 /// 799 /// Finally, we check the command line that was used to create the real 800 /// CompilerInvocation instance. By default, we compare it to the command line 801 /// the real CompilerInvocation generates. This checks whether the generator is 802 /// deterministic. If \p CheckAgainstOriginalInvocation is enabled, we instead 803 /// compare it to the original command line to verify the original command-line 804 /// was canonical and can round-trip exactly. 805 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 806 CompilerInvocation &RealInvocation, 807 CompilerInvocation &DummyInvocation, 808 ArrayRef<const char *> CommandLineArgs, 809 DiagnosticsEngine &Diags, const char *Argv0, 810 bool CheckAgainstOriginalInvocation = false, 811 bool ForceRoundTrip = false) { 812 #ifndef NDEBUG 813 bool DoRoundTripDefault = true; 814 #else 815 bool DoRoundTripDefault = false; 816 #endif 817 818 bool DoRoundTrip = DoRoundTripDefault; 819 if (ForceRoundTrip) { 820 DoRoundTrip = true; 821 } else { 822 for (const auto *Arg : CommandLineArgs) { 823 if (Arg == StringRef("-round-trip-args")) 824 DoRoundTrip = true; 825 if (Arg == StringRef("-no-round-trip-args")) 826 DoRoundTrip = false; 827 } 828 } 829 830 // If round-trip was not requested, simply run the parser with the real 831 // invocation diagnostics. 832 if (!DoRoundTrip) 833 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 834 835 // Serializes quoted (and potentially escaped) arguments. 836 auto SerializeArgs = [](ArrayRef<const char *> Args) { 837 std::string Buffer; 838 llvm::raw_string_ostream OS(Buffer); 839 for (const char *Arg : Args) { 840 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 841 OS << ' '; 842 } 843 return Buffer; 844 }; 845 846 // Setup a dummy DiagnosticsEngine. 847 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 848 DummyDiags.setClient(new TextDiagnosticBuffer()); 849 850 // Run the first parse on the original arguments with the dummy invocation and 851 // diagnostics. 852 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 853 DummyDiags.getNumWarnings() != 0) { 854 // If the first parse did not succeed, it must be user mistake (invalid 855 // command line arguments). We won't be able to generate arguments that 856 // would reproduce the same result. Let's fail again with the real 857 // invocation and diagnostics, so all side-effects of parsing are visible. 858 unsigned NumWarningsBefore = Diags.getNumWarnings(); 859 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 860 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 861 return Success; 862 863 // Parse with original options and diagnostics succeeded even though it 864 // shouldn't have. Something is off. 865 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 866 Diags.Report(diag::note_cc1_round_trip_original) 867 << SerializeArgs(CommandLineArgs); 868 return false; 869 } 870 871 // Setup string allocator. 872 llvm::BumpPtrAllocator Alloc; 873 llvm::StringSaver StringPool(Alloc); 874 auto SA = [&StringPool](const Twine &Arg) { 875 return StringPool.save(Arg).data(); 876 }; 877 878 // Generate arguments from the dummy invocation. If Generate is the 879 // inverse of Parse, the newly generated arguments must have the same 880 // semantics as the original. 881 SmallVector<const char *> GeneratedArgs; 882 Generate(DummyInvocation, GeneratedArgs, SA); 883 884 // Run the second parse, now on the generated arguments, and with the real 885 // invocation and diagnostics. The result is what we will end up using for the 886 // rest of compilation, so if Generate is not inverse of Parse, something down 887 // the line will break. 888 bool Success2 = Parse(RealInvocation, GeneratedArgs, Diags, Argv0); 889 890 // The first parse on original arguments succeeded, but second parse of 891 // generated arguments failed. Something must be wrong with the generator. 892 if (!Success2) { 893 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 894 Diags.Report(diag::note_cc1_round_trip_generated) 895 << 1 << SerializeArgs(GeneratedArgs); 896 return false; 897 } 898 899 SmallVector<const char *> ComparisonArgs; 900 if (CheckAgainstOriginalInvocation) 901 // Compare against original arguments. 902 ComparisonArgs.assign(CommandLineArgs.begin(), CommandLineArgs.end()); 903 else 904 // Generate arguments again, this time from the options we will end up using 905 // for the rest of the compilation. 906 Generate(RealInvocation, ComparisonArgs, SA); 907 908 // Compares two lists of arguments. 909 auto Equal = [](const ArrayRef<const char *> A, 910 const ArrayRef<const char *> B) { 911 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 912 [](const char *AElem, const char *BElem) { 913 return StringRef(AElem) == StringRef(BElem); 914 }); 915 }; 916 917 // If we generated different arguments from what we assume are two 918 // semantically equivalent CompilerInvocations, the Generate function may 919 // be non-deterministic. 920 if (!Equal(GeneratedArgs, ComparisonArgs)) { 921 Diags.Report(diag::err_cc1_round_trip_mismatch); 922 Diags.Report(diag::note_cc1_round_trip_generated) 923 << 1 << SerializeArgs(GeneratedArgs); 924 Diags.Report(diag::note_cc1_round_trip_generated) 925 << 2 << SerializeArgs(ComparisonArgs); 926 return false; 927 } 928 929 Diags.Report(diag::remark_cc1_round_trip_generated) 930 << 1 << SerializeArgs(GeneratedArgs); 931 Diags.Report(diag::remark_cc1_round_trip_generated) 932 << 2 << SerializeArgs(ComparisonArgs); 933 934 return Success2; 935 } 936 937 bool CompilerInvocation::checkCC1RoundTrip(ArrayRef<const char *> Args, 938 DiagnosticsEngine &Diags, 939 const char *Argv0) { 940 CompilerInvocation DummyInvocation1, DummyInvocation2; 941 return RoundTrip( 942 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 943 DiagnosticsEngine &Diags, const char *Argv0) { 944 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 945 }, 946 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 947 StringAllocator SA) { 948 Args.push_back("-cc1"); 949 Invocation.generateCC1CommandLine(Args, SA); 950 }, 951 DummyInvocation1, DummyInvocation2, Args, Diags, Argv0, 952 /*CheckAgainstOriginalInvocation=*/true, /*ForceRoundTrip=*/true); 953 } 954 955 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 956 OptSpecifier GroupWithValue, 957 std::vector<std::string> &Diagnostics) { 958 for (auto *A : Args.filtered(Group)) { 959 if (A->getOption().getKind() == Option::FlagClass) { 960 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 961 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 962 Diagnostics.push_back( 963 std::string(A->getOption().getName().drop_front(1))); 964 } else if (A->getOption().matches(GroupWithValue)) { 965 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 966 // group. Add only the group name to the diagnostics. 967 Diagnostics.push_back( 968 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 969 } else { 970 // Otherwise, add its value (for OPT_W_Joined and similar). 971 Diagnostics.push_back(A->getValue()); 972 } 973 } 974 } 975 976 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 977 // it won't verify the input. 978 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 979 DiagnosticsEngine *Diags); 980 981 static void getAllNoBuiltinFuncValues(ArgList &Args, 982 std::vector<std::string> &Funcs) { 983 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 984 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 985 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 986 } 987 988 static void GenerateAnalyzerArgs(const AnalyzerOptions &Opts, 989 ArgumentConsumer Consumer) { 990 const AnalyzerOptions *AnalyzerOpts = &Opts; 991 992 #define ANALYZER_OPTION_WITH_MARSHALLING(...) \ 993 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 994 #include "clang/Driver/Options.inc" 995 #undef ANALYZER_OPTION_WITH_MARSHALLING 996 997 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 998 switch (Opts.AnalysisConstraintsOpt) { 999 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 1000 case NAME##Model: \ 1001 GenerateArg(Consumer, OPT_analyzer_constraints, CMDFLAG); \ 1002 break; 1003 #include "clang/StaticAnalyzer/Core/Analyses.def" 1004 default: 1005 llvm_unreachable("Tried to generate unknown analysis constraint."); 1006 } 1007 } 1008 1009 if (Opts.AnalysisDiagOpt != PD_HTML) { 1010 switch (Opts.AnalysisDiagOpt) { 1011 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 1012 case PD_##NAME: \ 1013 GenerateArg(Consumer, OPT_analyzer_output, CMDFLAG); \ 1014 break; 1015 #include "clang/StaticAnalyzer/Core/Analyses.def" 1016 default: 1017 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 1018 } 1019 } 1020 1021 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 1022 switch (Opts.AnalysisPurgeOpt) { 1023 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 1024 case NAME: \ 1025 GenerateArg(Consumer, OPT_analyzer_purge, CMDFLAG); \ 1026 break; 1027 #include "clang/StaticAnalyzer/Core/Analyses.def" 1028 default: 1029 llvm_unreachable("Tried to generate unknown analysis purge mode."); 1030 } 1031 } 1032 1033 if (Opts.InliningMode != NoRedundancy) { 1034 switch (Opts.InliningMode) { 1035 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 1036 case NAME: \ 1037 GenerateArg(Consumer, OPT_analyzer_inlining_mode, CMDFLAG); \ 1038 break; 1039 #include "clang/StaticAnalyzer/Core/Analyses.def" 1040 default: 1041 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 1042 } 1043 } 1044 1045 for (const auto &CP : Opts.CheckersAndPackages) { 1046 OptSpecifier Opt = 1047 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 1048 GenerateArg(Consumer, Opt, CP.first); 1049 } 1050 1051 AnalyzerOptions ConfigOpts; 1052 parseAnalyzerConfigs(ConfigOpts, nullptr); 1053 1054 // Sort options by key to avoid relying on StringMap iteration order. 1055 SmallVector<std::pair<StringRef, StringRef>, 4> SortedConfigOpts; 1056 for (const auto &C : Opts.Config) 1057 SortedConfigOpts.emplace_back(C.getKey(), C.getValue()); 1058 llvm::sort(SortedConfigOpts, llvm::less_first()); 1059 1060 for (const auto &[Key, Value] : SortedConfigOpts) { 1061 // Don't generate anything that came from parseAnalyzerConfigs. It would be 1062 // redundant and may not be valid on the command line. 1063 auto Entry = ConfigOpts.Config.find(Key); 1064 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == Value) 1065 continue; 1066 1067 GenerateArg(Consumer, OPT_analyzer_config, Key + "=" + Value); 1068 } 1069 1070 // Nothing to generate for FullCompilerInvocation. 1071 } 1072 1073 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 1074 DiagnosticsEngine &Diags) { 1075 unsigned NumErrorsBefore = Diags.getNumErrors(); 1076 1077 AnalyzerOptions *AnalyzerOpts = &Opts; 1078 1079 #define ANALYZER_OPTION_WITH_MARSHALLING(...) \ 1080 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 1081 #include "clang/Driver/Options.inc" 1082 #undef ANALYZER_OPTION_WITH_MARSHALLING 1083 1084 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 1085 StringRef Name = A->getValue(); 1086 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 1087 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 1088 .Case(CMDFLAG, NAME##Model) 1089 #include "clang/StaticAnalyzer/Core/Analyses.def" 1090 .Default(NumConstraints); 1091 if (Value == NumConstraints) { 1092 Diags.Report(diag::err_drv_invalid_value) 1093 << A->getAsString(Args) << Name; 1094 } else { 1095 #ifndef LLVM_WITH_Z3 1096 if (Value == AnalysisConstraints::Z3ConstraintsModel) { 1097 Diags.Report(diag::err_analyzer_not_built_with_z3); 1098 } 1099 #endif // LLVM_WITH_Z3 1100 Opts.AnalysisConstraintsOpt = Value; 1101 } 1102 } 1103 1104 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 1105 StringRef Name = A->getValue(); 1106 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 1107 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 1108 .Case(CMDFLAG, PD_##NAME) 1109 #include "clang/StaticAnalyzer/Core/Analyses.def" 1110 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 1111 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 1112 Diags.Report(diag::err_drv_invalid_value) 1113 << A->getAsString(Args) << Name; 1114 } else { 1115 Opts.AnalysisDiagOpt = Value; 1116 } 1117 } 1118 1119 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 1120 StringRef Name = A->getValue(); 1121 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 1122 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 1123 .Case(CMDFLAG, NAME) 1124 #include "clang/StaticAnalyzer/Core/Analyses.def" 1125 .Default(NumPurgeModes); 1126 if (Value == NumPurgeModes) { 1127 Diags.Report(diag::err_drv_invalid_value) 1128 << A->getAsString(Args) << Name; 1129 } else { 1130 Opts.AnalysisPurgeOpt = Value; 1131 } 1132 } 1133 1134 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 1135 StringRef Name = A->getValue(); 1136 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 1137 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 1138 .Case(CMDFLAG, NAME) 1139 #include "clang/StaticAnalyzer/Core/Analyses.def" 1140 .Default(NumInliningModes); 1141 if (Value == NumInliningModes) { 1142 Diags.Report(diag::err_drv_invalid_value) 1143 << A->getAsString(Args) << Name; 1144 } else { 1145 Opts.InliningMode = Value; 1146 } 1147 } 1148 1149 Opts.CheckersAndPackages.clear(); 1150 for (const Arg *A : 1151 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 1152 A->claim(); 1153 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 1154 // We can have a list of comma separated checker names, e.g: 1155 // '-analyzer-checker=cocoa,unix' 1156 StringRef CheckerAndPackageList = A->getValue(); 1157 SmallVector<StringRef, 16> CheckersAndPackages; 1158 CheckerAndPackageList.split(CheckersAndPackages, ","); 1159 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 1160 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 1161 IsEnabled); 1162 } 1163 1164 // Go through the analyzer configuration options. 1165 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 1166 1167 // We can have a list of comma separated config names, e.g: 1168 // '-analyzer-config key1=val1,key2=val2' 1169 StringRef configList = A->getValue(); 1170 SmallVector<StringRef, 4> configVals; 1171 configList.split(configVals, ","); 1172 for (const auto &configVal : configVals) { 1173 StringRef key, val; 1174 std::tie(key, val) = configVal.split("="); 1175 if (val.empty()) { 1176 Diags.Report(SourceLocation(), 1177 diag::err_analyzer_config_no_value) << configVal; 1178 break; 1179 } 1180 if (val.contains('=')) { 1181 Diags.Report(SourceLocation(), 1182 diag::err_analyzer_config_multiple_values) 1183 << configVal; 1184 break; 1185 } 1186 1187 // TODO: Check checker options too, possibly in CheckerRegistry. 1188 // Leave unknown non-checker configs unclaimed. 1189 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1190 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1191 Diags.Report(diag::err_analyzer_config_unknown) << key; 1192 continue; 1193 } 1194 1195 A->claim(); 1196 Opts.Config[key] = std::string(val); 1197 } 1198 } 1199 1200 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1201 parseAnalyzerConfigs(Opts, &Diags); 1202 else 1203 parseAnalyzerConfigs(Opts, nullptr); 1204 1205 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1206 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1207 if (i != 0) 1208 os << " "; 1209 os << Args.getArgString(i); 1210 } 1211 1212 return Diags.getNumErrors() == NumErrorsBefore; 1213 } 1214 1215 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1216 StringRef OptionName, StringRef DefaultVal) { 1217 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1218 } 1219 1220 static void initOption(AnalyzerOptions::ConfigTable &Config, 1221 DiagnosticsEngine *Diags, 1222 StringRef &OptionField, StringRef Name, 1223 StringRef DefaultVal) { 1224 // String options may be known to invalid (e.g. if the expected string is a 1225 // file name, but the file does not exist), those will have to be checked in 1226 // parseConfigs. 1227 OptionField = getStringOption(Config, Name, DefaultVal); 1228 } 1229 1230 static void initOption(AnalyzerOptions::ConfigTable &Config, 1231 DiagnosticsEngine *Diags, 1232 bool &OptionField, StringRef Name, bool DefaultVal) { 1233 auto PossiblyInvalidVal = 1234 llvm::StringSwitch<std::optional<bool>>( 1235 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1236 .Case("true", true) 1237 .Case("false", false) 1238 .Default(std::nullopt); 1239 1240 if (!PossiblyInvalidVal) { 1241 if (Diags) 1242 Diags->Report(diag::err_analyzer_config_invalid_input) 1243 << Name << "a boolean"; 1244 else 1245 OptionField = DefaultVal; 1246 } else 1247 OptionField = *PossiblyInvalidVal; 1248 } 1249 1250 static void initOption(AnalyzerOptions::ConfigTable &Config, 1251 DiagnosticsEngine *Diags, 1252 unsigned &OptionField, StringRef Name, 1253 unsigned DefaultVal) { 1254 1255 OptionField = DefaultVal; 1256 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1257 .getAsInteger(0, OptionField); 1258 if (Diags && HasFailed) 1259 Diags->Report(diag::err_analyzer_config_invalid_input) 1260 << Name << "an unsigned"; 1261 } 1262 1263 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1264 DiagnosticsEngine *Diags) { 1265 // TODO: There's no need to store the entire configtable, it'd be plenty 1266 // enough to store checker options. 1267 1268 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1269 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1270 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...) 1271 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1272 1273 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep"); 1274 const bool InShallowMode = AnOpts.UserMode == "shallow"; 1275 1276 #define ANALYZER_OPTION(...) 1277 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1278 SHALLOW_VAL, DEEP_VAL) \ 1279 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \ 1280 InShallowMode ? SHALLOW_VAL : DEEP_VAL); 1281 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1282 1283 // At this point, AnalyzerOptions is configured. Let's validate some options. 1284 1285 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1286 // The current approach only validates the registered checkers which does not 1287 // contain the runtime enabled checkers and optimally we would validate both. 1288 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1289 std::vector<StringRef> Checkers = 1290 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1291 std::vector<StringRef> Packages = 1292 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1293 1294 SmallVector<StringRef, 16> CheckersAndPackages; 1295 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1296 1297 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1298 if (Diags) { 1299 bool IsChecker = CheckerOrPackage.contains('.'); 1300 bool IsValidName = IsChecker 1301 ? llvm::is_contained(Checkers, CheckerOrPackage) 1302 : llvm::is_contained(Packages, CheckerOrPackage); 1303 1304 if (!IsValidName) 1305 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1306 << CheckerOrPackage; 1307 } 1308 1309 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1310 } 1311 } 1312 1313 if (!Diags) 1314 return; 1315 1316 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1317 Diags->Report(diag::err_analyzer_config_invalid_input) 1318 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1319 1320 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1321 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1322 << "a filename"; 1323 1324 if (!AnOpts.ModelPath.empty() && 1325 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1326 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1327 << "a filename"; 1328 } 1329 1330 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1331 static void 1332 GenerateOptimizationRemark(ArgumentConsumer Consumer, OptSpecifier OptEQ, 1333 StringRef Name, 1334 const CodeGenOptions::OptRemark &Remark) { 1335 if (Remark.hasValidPattern()) { 1336 GenerateArg(Consumer, OptEQ, Remark.Pattern); 1337 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1338 GenerateArg(Consumer, OPT_R_Joined, Name); 1339 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1340 GenerateArg(Consumer, OPT_R_Joined, StringRef("no-") + Name); 1341 } 1342 } 1343 1344 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1345 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1346 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1347 static CodeGenOptions::OptRemark 1348 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1349 OptSpecifier OptEQ, StringRef Name) { 1350 CodeGenOptions::OptRemark Result; 1351 1352 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1353 StringRef Pattern) { 1354 Result.Pattern = Pattern.str(); 1355 1356 std::string RegexError; 1357 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1358 if (!Result.Regex->isValid(RegexError)) { 1359 Diags.Report(diag::err_drv_optimization_remark_pattern) 1360 << RegexError << A->getAsString(Args); 1361 return false; 1362 } 1363 1364 return true; 1365 }; 1366 1367 for (Arg *A : Args) { 1368 if (A->getOption().matches(OPT_R_Joined)) { 1369 StringRef Value = A->getValue(); 1370 1371 if (Value == Name) 1372 Result.Kind = CodeGenOptions::RK_Enabled; 1373 else if (Value == "everything") 1374 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1375 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1376 Result.Kind = CodeGenOptions::RK_Disabled; 1377 else if (Value == "no-everything") 1378 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1379 else 1380 continue; 1381 1382 if (Result.Kind == CodeGenOptions::RK_Disabled || 1383 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1384 Result.Pattern = ""; 1385 Result.Regex = nullptr; 1386 } else { 1387 InitializeResultPattern(A, ".*"); 1388 } 1389 } else if (A->getOption().matches(OptEQ)) { 1390 Result.Kind = CodeGenOptions::RK_WithPattern; 1391 if (!InitializeResultPattern(A, A->getValue())) 1392 return CodeGenOptions::OptRemark(); 1393 } 1394 } 1395 1396 return Result; 1397 } 1398 1399 static bool parseDiagnosticLevelMask(StringRef FlagName, 1400 const std::vector<std::string> &Levels, 1401 DiagnosticsEngine &Diags, 1402 DiagnosticLevelMask &M) { 1403 bool Success = true; 1404 for (const auto &Level : Levels) { 1405 DiagnosticLevelMask const PM = 1406 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1407 .Case("note", DiagnosticLevelMask::Note) 1408 .Case("remark", DiagnosticLevelMask::Remark) 1409 .Case("warning", DiagnosticLevelMask::Warning) 1410 .Case("error", DiagnosticLevelMask::Error) 1411 .Default(DiagnosticLevelMask::None); 1412 if (PM == DiagnosticLevelMask::None) { 1413 Success = false; 1414 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1415 } 1416 M = M | PM; 1417 } 1418 return Success; 1419 } 1420 1421 static void parseSanitizerKinds(StringRef FlagName, 1422 const std::vector<std::string> &Sanitizers, 1423 DiagnosticsEngine &Diags, SanitizerSet &S) { 1424 for (const auto &Sanitizer : Sanitizers) { 1425 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1426 if (K == SanitizerMask()) 1427 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1428 else 1429 S.set(K, true); 1430 } 1431 } 1432 1433 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1434 SmallVector<StringRef, 4> Values; 1435 serializeSanitizerSet(S, Values); 1436 return Values; 1437 } 1438 1439 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1440 ArgList &Args, DiagnosticsEngine &D, 1441 XRayInstrSet &S) { 1442 llvm::SmallVector<StringRef, 2> BundleParts; 1443 llvm::SplitString(Bundle, BundleParts, ","); 1444 for (const auto &B : BundleParts) { 1445 auto Mask = parseXRayInstrValue(B); 1446 if (Mask == XRayInstrKind::None) 1447 if (B != "none") 1448 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1449 else 1450 S.Mask = Mask; 1451 else if (Mask == XRayInstrKind::All) 1452 S.Mask = Mask; 1453 else 1454 S.set(Mask, true); 1455 } 1456 } 1457 1458 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1459 llvm::SmallVector<StringRef, 2> BundleParts; 1460 serializeXRayInstrValue(S, BundleParts); 1461 std::string Buffer; 1462 llvm::raw_string_ostream OS(Buffer); 1463 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1464 return Buffer; 1465 } 1466 1467 // Set the profile kind using fprofile-instrument-use-path. 1468 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1469 const Twine &ProfileName, 1470 llvm::vfs::FileSystem &FS, 1471 DiagnosticsEngine &Diags) { 1472 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName, FS); 1473 if (auto E = ReaderOrErr.takeError()) { 1474 unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, 1475 "Error in reading profile %0: %1"); 1476 llvm::handleAllErrors(std::move(E), [&](const llvm::ErrorInfoBase &EI) { 1477 Diags.Report(DiagID) << ProfileName.str() << EI.message(); 1478 }); 1479 return; 1480 } 1481 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1482 std::move(ReaderOrErr.get()); 1483 // Currently memprof profiles are only added at the IR level. Mark the profile 1484 // type as IR in that case as well and the subsequent matching needs to detect 1485 // which is available (might be one or both). 1486 if (PGOReader->isIRLevelProfile() || PGOReader->hasMemoryProfile()) { 1487 if (PGOReader->hasCSIRLevelProfile()) 1488 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1489 else 1490 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1491 } else 1492 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1493 } 1494 1495 void CompilerInvocation::setDefaultPointerAuthOptions( 1496 PointerAuthOptions &Opts, const LangOptions &LangOpts, 1497 const llvm::Triple &Triple) { 1498 assert(Triple.getArch() == llvm::Triple::aarch64); 1499 if (LangOpts.PointerAuthCalls) { 1500 using Key = PointerAuthSchema::ARM8_3Key; 1501 using Discrimination = PointerAuthSchema::Discrimination; 1502 // If you change anything here, be sure to update <ptrauth.h>. 1503 Opts.FunctionPointers = PointerAuthSchema( 1504 Key::ASIA, false, 1505 LangOpts.PointerAuthFunctionTypeDiscrimination ? Discrimination::Type 1506 : Discrimination::None); 1507 1508 Opts.CXXVTablePointers = PointerAuthSchema( 1509 Key::ASDA, LangOpts.PointerAuthVTPtrAddressDiscrimination, 1510 LangOpts.PointerAuthVTPtrTypeDiscrimination ? Discrimination::Type 1511 : Discrimination::None); 1512 1513 if (LangOpts.PointerAuthTypeInfoVTPtrDiscrimination) 1514 Opts.CXXTypeInfoVTablePointer = 1515 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant, 1516 StdTypeInfoVTablePointerConstantDiscrimination); 1517 else 1518 Opts.CXXTypeInfoVTablePointer = 1519 PointerAuthSchema(Key::ASDA, false, Discrimination::None); 1520 1521 Opts.CXXVTTVTablePointers = 1522 PointerAuthSchema(Key::ASDA, false, Discrimination::None); 1523 Opts.CXXVirtualFunctionPointers = Opts.CXXVirtualVariadicFunctionPointers = 1524 PointerAuthSchema(Key::ASIA, true, Discrimination::Decl); 1525 Opts.CXXMemberFunctionPointers = 1526 PointerAuthSchema(Key::ASIA, false, Discrimination::Type); 1527 1528 if (LangOpts.PointerAuthInitFini) { 1529 Opts.InitFiniPointers = PointerAuthSchema( 1530 Key::ASIA, LangOpts.PointerAuthInitFiniAddressDiscrimination, 1531 Discrimination::Constant, InitFiniPointerConstantDiscriminator); 1532 } 1533 } 1534 Opts.ReturnAddresses = LangOpts.PointerAuthReturns; 1535 Opts.AuthTraps = LangOpts.PointerAuthAuthTraps; 1536 Opts.IndirectGotos = LangOpts.PointerAuthIndirectGotos; 1537 Opts.AArch64JumpTableHardening = LangOpts.AArch64JumpTableHardening; 1538 } 1539 1540 static void parsePointerAuthOptions(PointerAuthOptions &Opts, 1541 const LangOptions &LangOpts, 1542 const llvm::Triple &Triple, 1543 DiagnosticsEngine &Diags) { 1544 if (!LangOpts.PointerAuthCalls && !LangOpts.PointerAuthReturns && 1545 !LangOpts.PointerAuthAuthTraps && !LangOpts.PointerAuthIndirectGotos && 1546 !LangOpts.AArch64JumpTableHardening) 1547 return; 1548 1549 CompilerInvocation::setDefaultPointerAuthOptions(Opts, LangOpts, Triple); 1550 } 1551 1552 void CompilerInvocationBase::GenerateCodeGenArgs(const CodeGenOptions &Opts, 1553 ArgumentConsumer Consumer, 1554 const llvm::Triple &T, 1555 const std::string &OutputFile, 1556 const LangOptions *LangOpts) { 1557 const CodeGenOptions &CodeGenOpts = Opts; 1558 1559 if (Opts.OptimizationLevel == 0) 1560 GenerateArg(Consumer, OPT_O0); 1561 else 1562 GenerateArg(Consumer, OPT_O, Twine(Opts.OptimizationLevel)); 1563 1564 #define CODEGEN_OPTION_WITH_MARSHALLING(...) \ 1565 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 1566 #include "clang/Driver/Options.inc" 1567 #undef CODEGEN_OPTION_WITH_MARSHALLING 1568 1569 if (Opts.OptimizationLevel > 0) { 1570 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1571 GenerateArg(Consumer, OPT_finline_functions); 1572 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1573 GenerateArg(Consumer, OPT_finline_hint_functions); 1574 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1575 GenerateArg(Consumer, OPT_fno_inline); 1576 } 1577 1578 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1579 GenerateArg(Consumer, OPT_fdirect_access_external_data); 1580 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1581 GenerateArg(Consumer, OPT_fno_direct_access_external_data); 1582 1583 std::optional<StringRef> DebugInfoVal; 1584 switch (Opts.DebugInfo) { 1585 case llvm::codegenoptions::DebugLineTablesOnly: 1586 DebugInfoVal = "line-tables-only"; 1587 break; 1588 case llvm::codegenoptions::DebugDirectivesOnly: 1589 DebugInfoVal = "line-directives-only"; 1590 break; 1591 case llvm::codegenoptions::DebugInfoConstructor: 1592 DebugInfoVal = "constructor"; 1593 break; 1594 case llvm::codegenoptions::LimitedDebugInfo: 1595 DebugInfoVal = "limited"; 1596 break; 1597 case llvm::codegenoptions::FullDebugInfo: 1598 DebugInfoVal = "standalone"; 1599 break; 1600 case llvm::codegenoptions::UnusedTypeInfo: 1601 DebugInfoVal = "unused-types"; 1602 break; 1603 case llvm::codegenoptions::NoDebugInfo: // default value 1604 DebugInfoVal = std::nullopt; 1605 break; 1606 case llvm::codegenoptions::LocTrackingOnly: // implied value 1607 DebugInfoVal = std::nullopt; 1608 break; 1609 } 1610 if (DebugInfoVal) 1611 GenerateArg(Consumer, OPT_debug_info_kind_EQ, *DebugInfoVal); 1612 1613 for (const auto &Prefix : Opts.DebugPrefixMap) 1614 GenerateArg(Consumer, OPT_fdebug_prefix_map_EQ, 1615 Prefix.first + "=" + Prefix.second); 1616 1617 for (const auto &Prefix : Opts.CoveragePrefixMap) 1618 GenerateArg(Consumer, OPT_fcoverage_prefix_map_EQ, 1619 Prefix.first + "=" + Prefix.second); 1620 1621 if (Opts.NewStructPathTBAA) 1622 GenerateArg(Consumer, OPT_new_struct_path_tbaa); 1623 1624 if (Opts.OptimizeSize == 1) 1625 GenerateArg(Consumer, OPT_O, "s"); 1626 else if (Opts.OptimizeSize == 2) 1627 GenerateArg(Consumer, OPT_O, "z"); 1628 1629 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1630 // -ffreestanding. We'll consider that when generating them. 1631 1632 // NoBuiltinFuncs are generated by LangOptions. 1633 1634 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1635 GenerateArg(Consumer, OPT_funroll_loops); 1636 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1637 GenerateArg(Consumer, OPT_fno_unroll_loops); 1638 1639 if (!Opts.BinutilsVersion.empty()) 1640 GenerateArg(Consumer, OPT_fbinutils_version_EQ, Opts.BinutilsVersion); 1641 1642 if (Opts.DebugNameTable == 1643 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1644 GenerateArg(Consumer, OPT_ggnu_pubnames); 1645 else if (Opts.DebugNameTable == 1646 static_cast<unsigned>( 1647 llvm::DICompileUnit::DebugNameTableKind::Default)) 1648 GenerateArg(Consumer, OPT_gpubnames); 1649 1650 if (Opts.DebugTemplateAlias) 1651 GenerateArg(Consumer, OPT_gtemplate_alias); 1652 1653 auto TNK = Opts.getDebugSimpleTemplateNames(); 1654 if (TNK != llvm::codegenoptions::DebugTemplateNamesKind::Full) { 1655 if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Simple) 1656 GenerateArg(Consumer, OPT_gsimple_template_names_EQ, "simple"); 1657 else if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Mangled) 1658 GenerateArg(Consumer, OPT_gsimple_template_names_EQ, "mangled"); 1659 } 1660 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1661 // it or PGOUseInstrumentor. 1662 1663 if (Opts.TimePasses) { 1664 if (Opts.TimePassesPerRun) 1665 GenerateArg(Consumer, OPT_ftime_report_EQ, "per-pass-run"); 1666 else 1667 GenerateArg(Consumer, OPT_ftime_report); 1668 } 1669 1670 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1671 GenerateArg(Consumer, OPT_flto_EQ, "full"); 1672 1673 if (Opts.PrepareForThinLTO) 1674 GenerateArg(Consumer, OPT_flto_EQ, "thin"); 1675 1676 if (!Opts.ThinLTOIndexFile.empty()) 1677 GenerateArg(Consumer, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile); 1678 1679 if (Opts.SaveTempsFilePrefix == OutputFile) 1680 GenerateArg(Consumer, OPT_save_temps_EQ, "obj"); 1681 1682 StringRef MemProfileBasename("memprof.profraw"); 1683 if (!Opts.MemoryProfileOutput.empty()) { 1684 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1685 GenerateArg(Consumer, OPT_fmemory_profile); 1686 } else { 1687 size_t ArgLength = 1688 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1689 GenerateArg(Consumer, OPT_fmemory_profile_EQ, 1690 Opts.MemoryProfileOutput.substr(0, ArgLength)); 1691 } 1692 } 1693 1694 if (memcmp(Opts.CoverageVersion, "0000", 4)) 1695 GenerateArg(Consumer, OPT_coverage_version_EQ, 1696 StringRef(Opts.CoverageVersion, 4)); 1697 1698 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1699 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1700 // won't be generated.) 1701 1702 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1703 std::string InstrBundle = 1704 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1705 if (!InstrBundle.empty()) 1706 GenerateArg(Consumer, OPT_fxray_instrumentation_bundle, InstrBundle); 1707 } 1708 1709 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1710 GenerateArg(Consumer, OPT_fcf_protection_EQ, "full"); 1711 else if (Opts.CFProtectionReturn) 1712 GenerateArg(Consumer, OPT_fcf_protection_EQ, "return"); 1713 else if (Opts.CFProtectionBranch) 1714 GenerateArg(Consumer, OPT_fcf_protection_EQ, "branch"); 1715 1716 if (Opts.CFProtectionBranch) { 1717 switch (Opts.getCFBranchLabelScheme()) { 1718 case CFBranchLabelSchemeKind::Default: 1719 break; 1720 #define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \ 1721 case CFBranchLabelSchemeKind::Kind: \ 1722 GenerateArg(Consumer, OPT_mcf_branch_label_scheme_EQ, #FlagVal); \ 1723 break; 1724 #include "clang/Basic/CFProtectionOptions.def" 1725 } 1726 } 1727 1728 if (Opts.FunctionReturnThunks) 1729 GenerateArg(Consumer, OPT_mfunction_return_EQ, "thunk-extern"); 1730 1731 for (const auto &F : Opts.LinkBitcodeFiles) { 1732 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1733 F.PropagateAttrs && F.Internalize; 1734 GenerateArg(Consumer, 1735 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1736 F.Filename); 1737 } 1738 1739 if (Opts.EmulatedTLS) 1740 GenerateArg(Consumer, OPT_femulated_tls); 1741 1742 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1743 GenerateArg(Consumer, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str()); 1744 1745 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1746 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1747 GenerateArg(Consumer, OPT_fdenormal_fp_math_f32_EQ, 1748 Opts.FP32DenormalMode.str()); 1749 1750 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1751 OptSpecifier Opt = 1752 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1753 GenerateArg(Consumer, Opt); 1754 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1755 OptSpecifier Opt = 1756 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1757 GenerateArg(Consumer, Opt); 1758 } 1759 1760 if (Opts.EnableAIXExtendedAltivecABI) 1761 GenerateArg(Consumer, OPT_mabi_EQ_vec_extabi); 1762 1763 if (Opts.XCOFFReadOnlyPointers) 1764 GenerateArg(Consumer, OPT_mxcoff_roptr); 1765 1766 if (!Opts.OptRecordPasses.empty()) 1767 GenerateArg(Consumer, OPT_opt_record_passes, Opts.OptRecordPasses); 1768 1769 if (!Opts.OptRecordFormat.empty()) 1770 GenerateArg(Consumer, OPT_opt_record_format, Opts.OptRecordFormat); 1771 1772 GenerateOptimizationRemark(Consumer, OPT_Rpass_EQ, "pass", 1773 Opts.OptimizationRemark); 1774 1775 GenerateOptimizationRemark(Consumer, OPT_Rpass_missed_EQ, "pass-missed", 1776 Opts.OptimizationRemarkMissed); 1777 1778 GenerateOptimizationRemark(Consumer, OPT_Rpass_analysis_EQ, "pass-analysis", 1779 Opts.OptimizationRemarkAnalysis); 1780 1781 GenerateArg(Consumer, OPT_fdiagnostics_hotness_threshold_EQ, 1782 Opts.DiagnosticsHotnessThreshold 1783 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1784 : "auto"); 1785 1786 GenerateArg(Consumer, OPT_fdiagnostics_misexpect_tolerance_EQ, 1787 Twine(*Opts.DiagnosticsMisExpectTolerance)); 1788 1789 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1790 GenerateArg(Consumer, OPT_fsanitize_recover_EQ, Sanitizer); 1791 1792 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1793 GenerateArg(Consumer, OPT_fsanitize_trap_EQ, Sanitizer); 1794 1795 for (StringRef Sanitizer : 1796 serializeSanitizerKinds(Opts.SanitizeMergeHandlers)) 1797 GenerateArg(Consumer, OPT_fsanitize_merge_handlers_EQ, Sanitizer); 1798 1799 if (!Opts.EmitVersionIdentMetadata) 1800 GenerateArg(Consumer, OPT_Qn); 1801 1802 switch (Opts.FiniteLoops) { 1803 case CodeGenOptions::FiniteLoopsKind::Language: 1804 break; 1805 case CodeGenOptions::FiniteLoopsKind::Always: 1806 GenerateArg(Consumer, OPT_ffinite_loops); 1807 break; 1808 case CodeGenOptions::FiniteLoopsKind::Never: 1809 GenerateArg(Consumer, OPT_fno_finite_loops); 1810 break; 1811 } 1812 } 1813 1814 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1815 InputKind IK, 1816 DiagnosticsEngine &Diags, 1817 const llvm::Triple &T, 1818 const std::string &OutputFile, 1819 const LangOptions &LangOptsRef) { 1820 unsigned NumErrorsBefore = Diags.getNumErrors(); 1821 1822 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1823 // TODO: This could be done in Driver 1824 unsigned MaxOptLevel = 3; 1825 if (OptimizationLevel > MaxOptLevel) { 1826 // If the optimization level is not supported, fall back on the default 1827 // optimization 1828 Diags.Report(diag::warn_drv_optimization_value) 1829 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1830 OptimizationLevel = MaxOptLevel; 1831 } 1832 Opts.OptimizationLevel = OptimizationLevel; 1833 1834 // The key paths of codegen options defined in Options.td start with 1835 // "CodeGenOpts.". Let's provide the expected variable name and type. 1836 CodeGenOptions &CodeGenOpts = Opts; 1837 // Some codegen options depend on language options. Let's provide the expected 1838 // variable name and type. 1839 const LangOptions *LangOpts = &LangOptsRef; 1840 1841 #define CODEGEN_OPTION_WITH_MARSHALLING(...) \ 1842 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 1843 #include "clang/Driver/Options.inc" 1844 #undef CODEGEN_OPTION_WITH_MARSHALLING 1845 1846 // At O0 we want to fully disable inlining outside of cases marked with 1847 // 'alwaysinline' that are required for correctness. 1848 if (Opts.OptimizationLevel == 0) { 1849 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1850 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1851 options::OPT_finline_hint_functions, 1852 options::OPT_fno_inline_functions, 1853 options::OPT_fno_inline)) { 1854 // Explicit inlining flags can disable some or all inlining even at 1855 // optimization levels above zero. 1856 if (A->getOption().matches(options::OPT_finline_functions)) 1857 Opts.setInlining(CodeGenOptions::NormalInlining); 1858 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1859 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1860 else 1861 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1862 } else { 1863 Opts.setInlining(CodeGenOptions::NormalInlining); 1864 } 1865 1866 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1867 // -fdirect-access-external-data. 1868 Opts.DirectAccessExternalData = 1869 Args.hasArg(OPT_fdirect_access_external_data) || 1870 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1871 LangOpts->PICLevel == 0); 1872 1873 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1874 unsigned Val = 1875 llvm::StringSwitch<unsigned>(A->getValue()) 1876 .Case("line-tables-only", llvm::codegenoptions::DebugLineTablesOnly) 1877 .Case("line-directives-only", 1878 llvm::codegenoptions::DebugDirectivesOnly) 1879 .Case("constructor", llvm::codegenoptions::DebugInfoConstructor) 1880 .Case("limited", llvm::codegenoptions::LimitedDebugInfo) 1881 .Case("standalone", llvm::codegenoptions::FullDebugInfo) 1882 .Case("unused-types", llvm::codegenoptions::UnusedTypeInfo) 1883 .Default(~0U); 1884 if (Val == ~0U) 1885 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1886 << A->getValue(); 1887 else 1888 Opts.setDebugInfo(static_cast<llvm::codegenoptions::DebugInfoKind>(Val)); 1889 } 1890 1891 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1892 // constructor homing, and vice versa for -fno-use-ctor-homing. 1893 if (const Arg *A = 1894 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1895 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1896 Opts.getDebugInfo() == llvm::codegenoptions::LimitedDebugInfo) 1897 Opts.setDebugInfo(llvm::codegenoptions::DebugInfoConstructor); 1898 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1899 Opts.getDebugInfo() == llvm::codegenoptions::DebugInfoConstructor) 1900 Opts.setDebugInfo(llvm::codegenoptions::LimitedDebugInfo); 1901 } 1902 1903 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1904 auto Split = StringRef(Arg).split('='); 1905 Opts.DebugPrefixMap.emplace_back(Split.first, Split.second); 1906 } 1907 1908 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1909 auto Split = StringRef(Arg).split('='); 1910 Opts.CoveragePrefixMap.emplace_back(Split.first, Split.second); 1911 } 1912 1913 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1914 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1915 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1916 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1917 1918 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1919 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1920 Opts.EmitCallSiteInfo = true; 1921 1922 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1923 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1924 << Opts.DIBugsReportFilePath; 1925 Opts.DIBugsReportFilePath = ""; 1926 } 1927 1928 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1929 Args.hasArg(OPT_new_struct_path_tbaa); 1930 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1931 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1932 if (Opts.SimplifyLibCalls) 1933 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1934 Opts.UnrollLoops = 1935 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1936 (Opts.OptimizationLevel > 1)); 1937 Opts.BinutilsVersion = 1938 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1939 1940 Opts.DebugTemplateAlias = Args.hasArg(OPT_gtemplate_alias); 1941 1942 Opts.DebugNameTable = static_cast<unsigned>( 1943 Args.hasArg(OPT_ggnu_pubnames) 1944 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1945 : Args.hasArg(OPT_gpubnames) 1946 ? llvm::DICompileUnit::DebugNameTableKind::Default 1947 : llvm::DICompileUnit::DebugNameTableKind::None); 1948 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1949 StringRef Value = A->getValue(); 1950 if (Value != "simple" && Value != "mangled") 1951 Diags.Report(diag::err_drv_unsupported_option_argument) 1952 << A->getSpelling() << A->getValue(); 1953 Opts.setDebugSimpleTemplateNames( 1954 StringRef(A->getValue()) == "simple" 1955 ? llvm::codegenoptions::DebugTemplateNamesKind::Simple 1956 : llvm::codegenoptions::DebugTemplateNamesKind::Mangled); 1957 } 1958 1959 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1960 Opts.TimePasses = true; 1961 1962 // -ftime-report= is only for new pass manager. 1963 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1964 StringRef Val = A->getValue(); 1965 if (Val == "per-pass") 1966 Opts.TimePassesPerRun = false; 1967 else if (Val == "per-pass-run") 1968 Opts.TimePassesPerRun = true; 1969 else 1970 Diags.Report(diag::err_drv_invalid_value) 1971 << A->getAsString(Args) << A->getValue(); 1972 } 1973 } 1974 1975 Opts.PrepareForLTO = false; 1976 Opts.PrepareForThinLTO = false; 1977 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1978 Opts.PrepareForLTO = true; 1979 StringRef S = A->getValue(); 1980 if (S == "thin") 1981 Opts.PrepareForThinLTO = true; 1982 else if (S != "full") 1983 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1984 if (Args.hasArg(OPT_funified_lto)) 1985 Opts.PrepareForThinLTO = true; 1986 } 1987 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1988 if (IK.getLanguage() != Language::LLVM_IR) 1989 Diags.Report(diag::err_drv_argument_only_allowed_with) 1990 << A->getAsString(Args) << "-x ir"; 1991 Opts.ThinLTOIndexFile = 1992 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1993 } 1994 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1995 Opts.SaveTempsFilePrefix = 1996 llvm::StringSwitch<std::string>(A->getValue()) 1997 .Case("obj", OutputFile) 1998 .Default(llvm::sys::path::filename(OutputFile).str()); 1999 2000 // The memory profile runtime appends the pid to make this name more unique. 2001 const char *MemProfileBasename = "memprof.profraw"; 2002 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 2003 SmallString<128> Path( 2004 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 2005 llvm::sys::path::append(Path, MemProfileBasename); 2006 Opts.MemoryProfileOutput = std::string(Path); 2007 } else if (Args.hasArg(OPT_fmemory_profile)) 2008 Opts.MemoryProfileOutput = MemProfileBasename; 2009 2010 if (Opts.CoverageNotesFile.size() || Opts.CoverageDataFile.size()) { 2011 if (Args.hasArg(OPT_coverage_version_EQ)) { 2012 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 2013 if (CoverageVersion.size() != 4) { 2014 Diags.Report(diag::err_drv_invalid_value) 2015 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 2016 << CoverageVersion; 2017 } else { 2018 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 2019 } 2020 } 2021 } 2022 // FIXME: For backend options that are not yet recorded as function 2023 // attributes in the IR, keep track of them so we can embed them in a 2024 // separate data section and use them when building the bitcode. 2025 for (const auto &A : Args) { 2026 // Do not encode output and input. 2027 if (A->getOption().getID() == options::OPT_o || 2028 A->getOption().getID() == options::OPT_INPUT || 2029 A->getOption().getID() == options::OPT_x || 2030 A->getOption().getID() == options::OPT_fembed_bitcode || 2031 A->getOption().matches(options::OPT_W_Group)) 2032 continue; 2033 ArgStringList ASL; 2034 A->render(Args, ASL); 2035 for (const auto &arg : ASL) { 2036 StringRef ArgStr(arg); 2037 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 2038 // using \00 to separate each commandline options. 2039 Opts.CmdArgs.push_back('\0'); 2040 } 2041 } 2042 2043 auto XRayInstrBundles = 2044 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 2045 if (XRayInstrBundles.empty()) 2046 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 2047 else 2048 for (const auto &A : XRayInstrBundles) 2049 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 2050 Diags, Opts.XRayInstrumentationBundle); 2051 2052 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2053 StringRef Name = A->getValue(); 2054 if (Name == "full") { 2055 Opts.CFProtectionReturn = 1; 2056 Opts.CFProtectionBranch = 1; 2057 } else if (Name == "return") 2058 Opts.CFProtectionReturn = 1; 2059 else if (Name == "branch") 2060 Opts.CFProtectionBranch = 1; 2061 else if (Name != "none") 2062 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2063 } 2064 2065 if (Opts.CFProtectionBranch && T.isRISCV()) { 2066 if (const Arg *A = Args.getLastArg(OPT_mcf_branch_label_scheme_EQ)) { 2067 const auto Scheme = 2068 llvm::StringSwitch<CFBranchLabelSchemeKind>(A->getValue()) 2069 #define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \ 2070 .Case(#FlagVal, CFBranchLabelSchemeKind::Kind) 2071 #include "clang/Basic/CFProtectionOptions.def" 2072 .Default(CFBranchLabelSchemeKind::Default); 2073 if (Scheme != CFBranchLabelSchemeKind::Default) 2074 Opts.setCFBranchLabelScheme(Scheme); 2075 else 2076 Diags.Report(diag::err_drv_invalid_value) 2077 << A->getAsString(Args) << A->getValue(); 2078 } 2079 } 2080 2081 if (const Arg *A = Args.getLastArg(OPT_mfunction_return_EQ)) { 2082 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue()) 2083 .Case("keep", llvm::FunctionReturnThunksKind::Keep) 2084 .Case("thunk-extern", llvm::FunctionReturnThunksKind::Extern) 2085 .Default(llvm::FunctionReturnThunksKind::Invalid); 2086 // SystemZ might want to add support for "expolines." 2087 if (!T.isX86()) 2088 Diags.Report(diag::err_drv_argument_not_allowed_with) 2089 << A->getSpelling() << T.getTriple(); 2090 else if (Val == llvm::FunctionReturnThunksKind::Invalid) 2091 Diags.Report(diag::err_drv_invalid_value) 2092 << A->getAsString(Args) << A->getValue(); 2093 else if (Val == llvm::FunctionReturnThunksKind::Extern && 2094 Args.getLastArgValue(OPT_mcmodel_EQ) == "large") 2095 Diags.Report(diag::err_drv_argument_not_allowed_with) 2096 << A->getAsString(Args) 2097 << Args.getLastArg(OPT_mcmodel_EQ)->getAsString(Args); 2098 else 2099 Opts.FunctionReturnThunks = static_cast<unsigned>(Val); 2100 } 2101 2102 for (auto *A : 2103 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 2104 CodeGenOptions::BitcodeFileToLink F; 2105 F.Filename = A->getValue(); 2106 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 2107 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 2108 // When linking CUDA bitcode, propagate function attributes so that 2109 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 2110 F.PropagateAttrs = true; 2111 F.Internalize = true; 2112 } 2113 Opts.LinkBitcodeFiles.push_back(F); 2114 } 2115 2116 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 2117 StringRef Val = A->getValue(); 2118 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 2119 Opts.FP32DenormalMode = Opts.FPDenormalMode; 2120 if (!Opts.FPDenormalMode.isValid()) 2121 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2122 } 2123 2124 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 2125 StringRef Val = A->getValue(); 2126 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 2127 if (!Opts.FP32DenormalMode.isValid()) 2128 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2129 } 2130 2131 // X86_32 has -fppc-struct-return and -freg-struct-return. 2132 // PPC32 has -maix-struct-return and -msvr4-struct-return. 2133 if (Arg *A = 2134 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 2135 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 2136 // TODO: We might want to consider enabling these options on AIX in the 2137 // future. 2138 if (T.isOSAIX()) 2139 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2140 << A->getSpelling() << T.str(); 2141 2142 const Option &O = A->getOption(); 2143 if (O.matches(OPT_fpcc_struct_return) || 2144 O.matches(OPT_maix_struct_return)) { 2145 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 2146 } else { 2147 assert(O.matches(OPT_freg_struct_return) || 2148 O.matches(OPT_msvr4_struct_return)); 2149 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 2150 } 2151 } 2152 2153 if (Arg *A = Args.getLastArg(OPT_mxcoff_roptr)) { 2154 if (!T.isOSAIX()) 2155 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2156 << A->getSpelling() << T.str(); 2157 2158 // Since the storage mapping class is specified per csect, 2159 // without using data sections, it is less effective to use read-only 2160 // pointers. Using read-only pointers may cause other RO variables in the 2161 // same csect to become RW when the linker acts upon `-bforceimprw`; 2162 // therefore, we require that separate data sections 2163 // are used when `-mxcoff-roptr` is in effect. We respect the setting of 2164 // data-sections since we have not found reasons to do otherwise that 2165 // overcome the user surprise of not respecting the setting. 2166 if (!Args.hasFlag(OPT_fdata_sections, OPT_fno_data_sections, false)) 2167 Diags.Report(diag::err_roptr_requires_data_sections); 2168 2169 Opts.XCOFFReadOnlyPointers = true; 2170 } 2171 2172 if (Arg *A = Args.getLastArg(OPT_mabi_EQ_quadword_atomics)) { 2173 if (!T.isOSAIX() || T.isPPC32()) 2174 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2175 << A->getSpelling() << T.str(); 2176 } 2177 2178 bool NeedLocTracking = false; 2179 2180 if (!Opts.OptRecordFile.empty()) 2181 NeedLocTracking = true; 2182 2183 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 2184 Opts.OptRecordPasses = A->getValue(); 2185 NeedLocTracking = true; 2186 } 2187 2188 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 2189 Opts.OptRecordFormat = A->getValue(); 2190 NeedLocTracking = true; 2191 } 2192 2193 Opts.OptimizationRemark = 2194 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 2195 2196 Opts.OptimizationRemarkMissed = 2197 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 2198 2199 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 2200 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 2201 2202 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 2203 Opts.OptimizationRemarkMissed.hasValidPattern() || 2204 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 2205 2206 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 2207 bool UsingProfile = 2208 UsingSampleProfile || !Opts.ProfileInstrumentUsePath.empty(); 2209 2210 if (Opts.DiagnosticsWithHotness && !UsingProfile && 2211 // An IR file will contain PGO as metadata 2212 IK.getLanguage() != Language::LLVM_IR) 2213 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 2214 << "-fdiagnostics-show-hotness"; 2215 2216 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 2217 if (auto *arg = 2218 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 2219 auto ResultOrErr = 2220 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 2221 2222 if (!ResultOrErr) { 2223 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 2224 << "-fdiagnostics-hotness-threshold="; 2225 } else { 2226 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 2227 if ((!Opts.DiagnosticsHotnessThreshold || 2228 *Opts.DiagnosticsHotnessThreshold > 0) && 2229 !UsingProfile) 2230 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 2231 << "-fdiagnostics-hotness-threshold="; 2232 } 2233 } 2234 2235 if (auto *arg = 2236 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 2237 auto ResultOrErr = parseToleranceOption(arg->getValue()); 2238 2239 if (!ResultOrErr) { 2240 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 2241 << "-fdiagnostics-misexpect-tolerance="; 2242 } else { 2243 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 2244 if ((!Opts.DiagnosticsMisExpectTolerance || 2245 *Opts.DiagnosticsMisExpectTolerance > 0) && 2246 !UsingProfile) 2247 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 2248 << "-fdiagnostics-misexpect-tolerance="; 2249 } 2250 } 2251 2252 // If the user requested to use a sample profile for PGO, then the 2253 // backend will need to track source location information so the profile 2254 // can be incorporated into the IR. 2255 if (UsingSampleProfile) 2256 NeedLocTracking = true; 2257 2258 if (!Opts.StackUsageOutput.empty()) 2259 NeedLocTracking = true; 2260 2261 // If the user requested a flag that requires source locations available in 2262 // the backend, make sure that the backend tracks source location information. 2263 if (NeedLocTracking && 2264 Opts.getDebugInfo() == llvm::codegenoptions::NoDebugInfo) 2265 Opts.setDebugInfo(llvm::codegenoptions::LocTrackingOnly); 2266 2267 // Parse -fsanitize-recover= arguments. 2268 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2269 parseSanitizerKinds("-fsanitize-recover=", 2270 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2271 Opts.SanitizeRecover); 2272 parseSanitizerKinds("-fsanitize-trap=", 2273 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2274 Opts.SanitizeTrap); 2275 parseSanitizerKinds("-fsanitize-merge=", 2276 Args.getAllArgValues(OPT_fsanitize_merge_handlers_EQ), 2277 Diags, Opts.SanitizeMergeHandlers); 2278 2279 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2280 2281 if (!LangOpts->CUDAIsDevice) 2282 parsePointerAuthOptions(Opts.PointerAuth, *LangOpts, T, Diags); 2283 2284 if (Args.hasArg(options::OPT_ffinite_loops)) 2285 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2286 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2287 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2288 2289 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2290 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2291 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2292 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2293 2294 return Diags.getNumErrors() == NumErrorsBefore; 2295 } 2296 2297 static void GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2298 ArgumentConsumer Consumer) { 2299 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2300 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 2301 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2302 #include "clang/Driver/Options.inc" 2303 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2304 2305 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2306 GenerateArg(Consumer, OPT_show_includes); 2307 2308 for (const auto &Dep : Opts.ExtraDeps) { 2309 switch (Dep.second) { 2310 case EDK_SanitizeIgnorelist: 2311 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2312 continue; 2313 case EDK_ModuleFile: 2314 // Module file arguments are generated from FrontendOptions and 2315 // HeaderSearchOptions. 2316 continue; 2317 case EDK_ProfileList: 2318 // Profile list arguments are generated from LanguageOptions via the 2319 // marshalling infrastructure. 2320 continue; 2321 case EDK_DepFileEntry: 2322 GenerateArg(Consumer, OPT_fdepfile_entry, Dep.first); 2323 break; 2324 } 2325 } 2326 } 2327 2328 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2329 ArgList &Args, DiagnosticsEngine &Diags, 2330 frontend::ActionKind Action, 2331 bool ShowLineMarkers) { 2332 unsigned NumErrorsBefore = Diags.getNumErrors(); 2333 2334 DependencyOutputOptions &DependencyOutputOpts = Opts; 2335 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 2336 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2337 #include "clang/Driver/Options.inc" 2338 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2339 2340 if (Args.hasArg(OPT_show_includes)) { 2341 // Writing both /showIncludes and preprocessor output to stdout 2342 // would produce interleaved output, so use stderr for /showIncludes. 2343 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2344 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2345 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2346 else 2347 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2348 } else { 2349 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2350 } 2351 2352 // Add sanitizer ignorelists as extra dependencies. 2353 // They won't be discovered by the regular preprocessor, so 2354 // we let make / ninja to know about this implicit dependency. 2355 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2356 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2357 StringRef Val = A->getValue(); 2358 if (!Val.contains('=')) 2359 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2360 } 2361 if (Opts.IncludeSystemHeaders) { 2362 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2363 StringRef Val = A->getValue(); 2364 if (!Val.contains('=')) 2365 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2366 } 2367 } 2368 } 2369 2370 // -fprofile-list= dependencies. 2371 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2372 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2373 2374 // Propagate the extra dependencies. 2375 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2376 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2377 2378 // Only the -fmodule-file=<file> form. 2379 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2380 StringRef Val = A->getValue(); 2381 if (!Val.contains('=')) 2382 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2383 } 2384 2385 // Check for invalid combinations of header-include-format 2386 // and header-include-filtering. 2387 if ((Opts.HeaderIncludeFormat == HIFMT_Textual && 2388 Opts.HeaderIncludeFiltering != HIFIL_None) || 2389 (Opts.HeaderIncludeFormat == HIFMT_JSON && 2390 Opts.HeaderIncludeFiltering != HIFIL_Only_Direct_System)) 2391 Diags.Report(diag::err_drv_print_header_env_var_combination_cc1) 2392 << Args.getLastArg(OPT_header_include_format_EQ)->getValue() 2393 << Args.getLastArg(OPT_header_include_filtering_EQ)->getValue(); 2394 2395 return Diags.getNumErrors() == NumErrorsBefore; 2396 } 2397 2398 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2399 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2400 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2401 // Support both clang's -f[no-]color-diagnostics and gcc's 2402 // -f[no-]diagnostics-colors[=never|always|auto]. 2403 enum { 2404 Colors_On, 2405 Colors_Off, 2406 Colors_Auto 2407 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2408 for (auto *A : Args) { 2409 const Option &O = A->getOption(); 2410 if (O.matches(options::OPT_fcolor_diagnostics)) { 2411 ShowColors = Colors_On; 2412 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2413 ShowColors = Colors_Off; 2414 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2415 StringRef Value(A->getValue()); 2416 if (Value == "always") 2417 ShowColors = Colors_On; 2418 else if (Value == "never") 2419 ShowColors = Colors_Off; 2420 else if (Value == "auto") 2421 ShowColors = Colors_Auto; 2422 } 2423 } 2424 return ShowColors == Colors_On || 2425 (ShowColors == Colors_Auto && 2426 llvm::sys::Process::StandardErrHasColors()); 2427 } 2428 2429 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2430 DiagnosticsEngine &Diags) { 2431 bool Success = true; 2432 for (const auto &Prefix : VerifyPrefixes) { 2433 // Every prefix must start with a letter and contain only alphanumeric 2434 // characters, hyphens, and underscores. 2435 auto BadChar = llvm::find_if(Prefix, [](char C) { 2436 return !isAlphanumeric(C) && C != '-' && C != '_'; 2437 }); 2438 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2439 Success = false; 2440 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2441 Diags.Report(diag::note_drv_verify_prefix_spelling); 2442 } 2443 } 2444 return Success; 2445 } 2446 2447 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2448 ArgumentConsumer Consumer) { 2449 const FileSystemOptions &FileSystemOpts = Opts; 2450 2451 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \ 2452 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2453 #include "clang/Driver/Options.inc" 2454 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2455 } 2456 2457 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2458 DiagnosticsEngine &Diags) { 2459 unsigned NumErrorsBefore = Diags.getNumErrors(); 2460 2461 FileSystemOptions &FileSystemOpts = Opts; 2462 2463 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \ 2464 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2465 #include "clang/Driver/Options.inc" 2466 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2467 2468 return Diags.getNumErrors() == NumErrorsBefore; 2469 } 2470 2471 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2472 ArgumentConsumer Consumer) { 2473 const MigratorOptions &MigratorOpts = Opts; 2474 #define MIGRATOR_OPTION_WITH_MARSHALLING(...) \ 2475 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2476 #include "clang/Driver/Options.inc" 2477 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2478 } 2479 2480 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2481 DiagnosticsEngine &Diags) { 2482 unsigned NumErrorsBefore = Diags.getNumErrors(); 2483 2484 MigratorOptions &MigratorOpts = Opts; 2485 2486 #define MIGRATOR_OPTION_WITH_MARSHALLING(...) \ 2487 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2488 #include "clang/Driver/Options.inc" 2489 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2490 2491 return Diags.getNumErrors() == NumErrorsBefore; 2492 } 2493 2494 void CompilerInvocationBase::GenerateDiagnosticArgs( 2495 const DiagnosticOptions &Opts, ArgumentConsumer Consumer, 2496 bool DefaultDiagColor) { 2497 const DiagnosticOptions *DiagnosticOpts = &Opts; 2498 #define DIAG_OPTION_WITH_MARSHALLING(...) \ 2499 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2500 #include "clang/Driver/Options.inc" 2501 #undef DIAG_OPTION_WITH_MARSHALLING 2502 2503 if (!Opts.DiagnosticSerializationFile.empty()) 2504 GenerateArg(Consumer, OPT_diagnostic_serialized_file, 2505 Opts.DiagnosticSerializationFile); 2506 2507 if (Opts.ShowColors) 2508 GenerateArg(Consumer, OPT_fcolor_diagnostics); 2509 2510 if (Opts.VerifyDiagnostics && 2511 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2512 GenerateArg(Consumer, OPT_verify); 2513 2514 for (const auto &Prefix : Opts.VerifyPrefixes) 2515 if (Prefix != "expected") 2516 GenerateArg(Consumer, OPT_verify_EQ, Prefix); 2517 2518 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2519 if (VIU == DiagnosticLevelMask::None) { 2520 // This is the default, don't generate anything. 2521 } else if (VIU == DiagnosticLevelMask::All) { 2522 GenerateArg(Consumer, OPT_verify_ignore_unexpected); 2523 } else { 2524 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2525 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "note"); 2526 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2527 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "remark"); 2528 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2529 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "warning"); 2530 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2531 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "error"); 2532 } 2533 2534 for (const auto &Warning : Opts.Warnings) { 2535 // This option is automatically generated from UndefPrefixes. 2536 if (Warning == "undef-prefix") 2537 continue; 2538 // This option is automatically generated from CheckConstexprFunctionBodies. 2539 if (Warning == "invalid-constexpr" || Warning == "no-invalid-constexpr") 2540 continue; 2541 Consumer(StringRef("-W") + Warning); 2542 } 2543 2544 for (const auto &Remark : Opts.Remarks) { 2545 // These arguments are generated from OptimizationRemark fields of 2546 // CodeGenOptions. 2547 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2548 "pass-analysis", "no-pass-analysis", 2549 "pass-missed", "no-pass-missed"}; 2550 if (llvm::is_contained(IgnoredRemarks, Remark)) 2551 continue; 2552 2553 Consumer(StringRef("-R") + Remark); 2554 } 2555 2556 if (!Opts.DiagnosticSuppressionMappingsFile.empty()) { 2557 GenerateArg(Consumer, OPT_warning_suppression_mappings_EQ, 2558 Opts.DiagnosticSuppressionMappingsFile); 2559 } 2560 } 2561 2562 std::unique_ptr<DiagnosticOptions> 2563 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2564 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2565 unsigned MissingArgIndex, MissingArgCount; 2566 InputArgList Args = getDriverOptTable().ParseArgs( 2567 Argv.slice(1), MissingArgIndex, MissingArgCount); 2568 2569 bool ShowColors = true; 2570 if (std::optional<std::string> NoColor = 2571 llvm::sys::Process::GetEnv("NO_COLOR"); 2572 NoColor && !NoColor->empty()) { 2573 // If the user set the NO_COLOR environment variable, we'll honor that 2574 // unless the command line overrides it. 2575 ShowColors = false; 2576 } 2577 2578 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2579 // Any errors that would be diagnosed here will also be diagnosed later, 2580 // when the DiagnosticsEngine actually exists. 2581 (void)ParseDiagnosticArgs(*DiagOpts, Args, /*Diags=*/nullptr, ShowColors); 2582 return DiagOpts; 2583 } 2584 2585 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2586 DiagnosticsEngine *Diags, 2587 bool DefaultDiagColor) { 2588 std::optional<DiagnosticsEngine> IgnoringDiags; 2589 if (!Diags) { 2590 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2591 new IgnoringDiagConsumer()); 2592 Diags = &*IgnoringDiags; 2593 } 2594 2595 unsigned NumErrorsBefore = Diags->getNumErrors(); 2596 2597 // The key paths of diagnostic options defined in Options.td start with 2598 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2599 DiagnosticOptions *DiagnosticOpts = &Opts; 2600 2601 #define DIAG_OPTION_WITH_MARSHALLING(...) \ 2602 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, __VA_ARGS__) 2603 #include "clang/Driver/Options.inc" 2604 #undef DIAG_OPTION_WITH_MARSHALLING 2605 2606 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2607 2608 if (Arg *A = 2609 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2610 Opts.DiagnosticSerializationFile = A->getValue(); 2611 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2612 2613 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2614 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2615 if (Args.hasArg(OPT_verify)) 2616 Opts.VerifyPrefixes.push_back("expected"); 2617 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2618 // then sort it to prepare for fast lookup using std::binary_search. 2619 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2620 Opts.VerifyDiagnostics = false; 2621 else 2622 llvm::sort(Opts.VerifyPrefixes); 2623 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2624 parseDiagnosticLevelMask( 2625 "-verify-ignore-unexpected=", 2626 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2627 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2628 DiagMask = DiagnosticLevelMask::All; 2629 Opts.setVerifyIgnoreUnexpected(DiagMask); 2630 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2631 Diags->Report(diag::warn_ignoring_ftabstop_value) 2632 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2633 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2634 } 2635 2636 if (const Arg *A = Args.getLastArg(OPT_warning_suppression_mappings_EQ)) 2637 Opts.DiagnosticSuppressionMappingsFile = A->getValue(); 2638 2639 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2640 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2641 2642 return Diags->getNumErrors() == NumErrorsBefore; 2643 } 2644 2645 /// Parse the argument to the -ftest-module-file-extension 2646 /// command-line argument. 2647 /// 2648 /// \returns true on error, false on success. 2649 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2650 std::string &BlockName, 2651 unsigned &MajorVersion, 2652 unsigned &MinorVersion, 2653 bool &Hashed, 2654 std::string &UserInfo) { 2655 SmallVector<StringRef, 5> Args; 2656 Arg.split(Args, ':', 5); 2657 if (Args.size() < 5) 2658 return true; 2659 2660 BlockName = std::string(Args[0]); 2661 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2662 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2663 if (Args[3].getAsInteger(2, Hashed)) return true; 2664 if (Args.size() > 4) 2665 UserInfo = std::string(Args[4]); 2666 return false; 2667 } 2668 2669 /// Return a table that associates command line option specifiers with the 2670 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2671 /// intentionally missing, as this case is handled separately from other 2672 /// frontend options. 2673 static const auto &getFrontendActionTable() { 2674 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2675 {frontend::ASTDeclList, OPT_ast_list}, 2676 2677 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2678 {frontend::ASTDump, OPT_ast_dump_all}, 2679 {frontend::ASTDump, OPT_ast_dump_EQ}, 2680 {frontend::ASTDump, OPT_ast_dump}, 2681 {frontend::ASTDump, OPT_ast_dump_lookups}, 2682 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2683 2684 {frontend::ASTPrint, OPT_ast_print}, 2685 {frontend::ASTView, OPT_ast_view}, 2686 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2687 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2688 {frontend::DumpTokens, OPT_dump_tokens}, 2689 {frontend::EmitAssembly, OPT_S}, 2690 {frontend::EmitBC, OPT_emit_llvm_bc}, 2691 {frontend::EmitCIR, OPT_emit_cir}, 2692 {frontend::EmitHTML, OPT_emit_html}, 2693 {frontend::EmitLLVM, OPT_emit_llvm}, 2694 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2695 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2696 {frontend::EmitObj, OPT_emit_obj}, 2697 {frontend::ExtractAPI, OPT_extract_api}, 2698 2699 {frontend::FixIt, OPT_fixit_EQ}, 2700 {frontend::FixIt, OPT_fixit}, 2701 2702 {frontend::GenerateModule, OPT_emit_module}, 2703 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2704 {frontend::GenerateReducedModuleInterface, 2705 OPT_emit_reduced_module_interface}, 2706 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2707 {frontend::GeneratePCH, OPT_emit_pch}, 2708 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2709 {frontend::InitOnly, OPT_init_only}, 2710 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2711 {frontend::ModuleFileInfo, OPT_module_file_info}, 2712 {frontend::VerifyPCH, OPT_verify_pch}, 2713 {frontend::PrintPreamble, OPT_print_preamble}, 2714 {frontend::PrintPreprocessedInput, OPT_E}, 2715 {frontend::TemplightDump, OPT_templight_dump}, 2716 {frontend::RewriteMacros, OPT_rewrite_macros}, 2717 {frontend::RewriteObjC, OPT_rewrite_objc}, 2718 {frontend::RewriteTest, OPT_rewrite_test}, 2719 {frontend::RunAnalysis, OPT_analyze}, 2720 {frontend::MigrateSource, OPT_migrate}, 2721 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2722 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2723 OPT_print_dependency_directives_minimized_source}, 2724 }; 2725 2726 return Table; 2727 } 2728 2729 /// Maps command line option to frontend action. 2730 static std::optional<frontend::ActionKind> 2731 getFrontendAction(OptSpecifier &Opt) { 2732 for (const auto &ActionOpt : getFrontendActionTable()) 2733 if (ActionOpt.second == Opt.getID()) 2734 return ActionOpt.first; 2735 2736 return std::nullopt; 2737 } 2738 2739 /// Maps frontend action to command line option. 2740 static std::optional<OptSpecifier> 2741 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2742 for (const auto &ActionOpt : getFrontendActionTable()) 2743 if (ActionOpt.first == ProgramAction) 2744 return OptSpecifier(ActionOpt.second); 2745 2746 return std::nullopt; 2747 } 2748 2749 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2750 ArgumentConsumer Consumer, bool IsHeader) { 2751 const FrontendOptions &FrontendOpts = Opts; 2752 #define FRONTEND_OPTION_WITH_MARSHALLING(...) \ 2753 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2754 #include "clang/Driver/Options.inc" 2755 #undef FRONTEND_OPTION_WITH_MARSHALLING 2756 2757 std::optional<OptSpecifier> ProgramActionOpt = 2758 getProgramActionOpt(Opts.ProgramAction); 2759 2760 // Generating a simple flag covers most frontend actions. 2761 std::function<void()> GenerateProgramAction = [&]() { 2762 GenerateArg(Consumer, *ProgramActionOpt); 2763 }; 2764 2765 if (!ProgramActionOpt) { 2766 // PluginAction is the only program action handled separately. 2767 assert(Opts.ProgramAction == frontend::PluginAction && 2768 "Frontend action without option."); 2769 GenerateProgramAction = [&]() { 2770 GenerateArg(Consumer, OPT_plugin, Opts.ActionName); 2771 }; 2772 } 2773 2774 // FIXME: Simplify the complex 'AST dump' command line. 2775 if (Opts.ProgramAction == frontend::ASTDump) { 2776 GenerateProgramAction = [&]() { 2777 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2778 // marshalling infrastructure. 2779 2780 if (Opts.ASTDumpFormat != ADOF_Default) { 2781 StringRef Format; 2782 switch (Opts.ASTDumpFormat) { 2783 case ADOF_Default: 2784 llvm_unreachable("Default AST dump format."); 2785 case ADOF_JSON: 2786 Format = "json"; 2787 break; 2788 } 2789 2790 if (Opts.ASTDumpAll) 2791 GenerateArg(Consumer, OPT_ast_dump_all_EQ, Format); 2792 if (Opts.ASTDumpDecls) 2793 GenerateArg(Consumer, OPT_ast_dump_EQ, Format); 2794 } else { 2795 if (Opts.ASTDumpAll) 2796 GenerateArg(Consumer, OPT_ast_dump_all); 2797 if (Opts.ASTDumpDecls) 2798 GenerateArg(Consumer, OPT_ast_dump); 2799 } 2800 }; 2801 } 2802 2803 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2804 GenerateProgramAction = [&]() { 2805 GenerateArg(Consumer, OPT_fixit_EQ, Opts.FixItSuffix); 2806 }; 2807 } 2808 2809 GenerateProgramAction(); 2810 2811 for (const auto &PluginArgs : Opts.PluginArgs) { 2812 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2813 for (const auto &PluginArg : PluginArgs.second) 2814 denormalizeString(Consumer, 2815 Opt.getPrefix() + Opt.getName() + PluginArgs.first, 2816 Opt.getKind(), 0, PluginArg); 2817 } 2818 2819 for (const auto &Ext : Opts.ModuleFileExtensions) 2820 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2821 GenerateArg(Consumer, OPT_ftest_module_file_extension_EQ, TestExt->str()); 2822 2823 if (!Opts.CodeCompletionAt.FileName.empty()) 2824 GenerateArg(Consumer, OPT_code_completion_at, 2825 Opts.CodeCompletionAt.ToString()); 2826 2827 for (const auto &Plugin : Opts.Plugins) 2828 GenerateArg(Consumer, OPT_load, Plugin); 2829 2830 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2831 2832 for (const auto &ModuleFile : Opts.ModuleFiles) 2833 GenerateArg(Consumer, OPT_fmodule_file, ModuleFile); 2834 2835 if (Opts.AuxTargetCPU) 2836 GenerateArg(Consumer, OPT_aux_target_cpu, *Opts.AuxTargetCPU); 2837 2838 if (Opts.AuxTargetFeatures) 2839 for (const auto &Feature : *Opts.AuxTargetFeatures) 2840 GenerateArg(Consumer, OPT_aux_target_feature, Feature); 2841 2842 { 2843 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2844 StringRef ModuleMap = 2845 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2846 StringRef HeaderUnit = ""; 2847 switch (Opts.DashX.getHeaderUnitKind()) { 2848 case InputKind::HeaderUnit_None: 2849 break; 2850 case InputKind::HeaderUnit_User: 2851 HeaderUnit = "-user"; 2852 break; 2853 case InputKind::HeaderUnit_System: 2854 HeaderUnit = "-system"; 2855 break; 2856 case InputKind::HeaderUnit_Abs: 2857 HeaderUnit = "-header-unit"; 2858 break; 2859 } 2860 StringRef Header = IsHeader ? "-header" : ""; 2861 2862 StringRef Lang; 2863 switch (Opts.DashX.getLanguage()) { 2864 case Language::C: 2865 Lang = "c"; 2866 break; 2867 case Language::OpenCL: 2868 Lang = "cl"; 2869 break; 2870 case Language::OpenCLCXX: 2871 Lang = "clcpp"; 2872 break; 2873 case Language::CUDA: 2874 Lang = "cuda"; 2875 break; 2876 case Language::HIP: 2877 Lang = "hip"; 2878 break; 2879 case Language::CXX: 2880 Lang = "c++"; 2881 break; 2882 case Language::ObjC: 2883 Lang = "objective-c"; 2884 break; 2885 case Language::ObjCXX: 2886 Lang = "objective-c++"; 2887 break; 2888 case Language::Asm: 2889 Lang = "assembler-with-cpp"; 2890 break; 2891 case Language::Unknown: 2892 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2893 "Generating -x argument for unknown language (not precompiled)."); 2894 Lang = "ast"; 2895 break; 2896 case Language::LLVM_IR: 2897 Lang = "ir"; 2898 break; 2899 case Language::HLSL: 2900 Lang = "hlsl"; 2901 break; 2902 case Language::CIR: 2903 Lang = "cir"; 2904 break; 2905 } 2906 2907 GenerateArg(Consumer, OPT_x, 2908 Lang + HeaderUnit + Header + ModuleMap + Preprocessed); 2909 } 2910 2911 // OPT_INPUT has a unique class, generate it directly. 2912 for (const auto &Input : Opts.Inputs) 2913 Consumer(Input.getFile()); 2914 } 2915 2916 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2917 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2918 unsigned NumErrorsBefore = Diags.getNumErrors(); 2919 2920 FrontendOptions &FrontendOpts = Opts; 2921 2922 #define FRONTEND_OPTION_WITH_MARSHALLING(...) \ 2923 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2924 #include "clang/Driver/Options.inc" 2925 #undef FRONTEND_OPTION_WITH_MARSHALLING 2926 2927 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2928 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2929 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2930 std::optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2931 assert(ProgramAction && "Option specifier not in Action_Group."); 2932 2933 if (ProgramAction == frontend::ASTDump && 2934 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2935 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2936 .CaseLower("default", ADOF_Default) 2937 .CaseLower("json", ADOF_JSON) 2938 .Default(std::numeric_limits<unsigned>::max()); 2939 2940 if (Val != std::numeric_limits<unsigned>::max()) 2941 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2942 else { 2943 Diags.Report(diag::err_drv_invalid_value) 2944 << A->getAsString(Args) << A->getValue(); 2945 Opts.ASTDumpFormat = ADOF_Default; 2946 } 2947 } 2948 2949 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2950 Opts.FixItSuffix = A->getValue(); 2951 2952 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2953 StringRef ArgStr = 2954 Args.hasArg(OPT_interface_stub_version_EQ) 2955 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2956 : "ifs-v1"; 2957 if (ArgStr == "experimental-yaml-elf-v1" || 2958 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2959 ArgStr == "experimental-tapi-elf-v1") { 2960 std::string ErrorMessage = 2961 "Invalid interface stub format: " + ArgStr.str() + 2962 " is deprecated."; 2963 Diags.Report(diag::err_drv_invalid_value) 2964 << "Must specify a valid interface stub format type, ie: " 2965 "-interface-stub-version=ifs-v1" 2966 << ErrorMessage; 2967 ProgramAction = frontend::ParseSyntaxOnly; 2968 } else if (!ArgStr.starts_with("ifs-")) { 2969 std::string ErrorMessage = 2970 "Invalid interface stub format: " + ArgStr.str() + "."; 2971 Diags.Report(diag::err_drv_invalid_value) 2972 << "Must specify a valid interface stub format type, ie: " 2973 "-interface-stub-version=ifs-v1" 2974 << ErrorMessage; 2975 ProgramAction = frontend::ParseSyntaxOnly; 2976 } 2977 } 2978 2979 Opts.ProgramAction = *ProgramAction; 2980 2981 // Catch common mistakes when multiple actions are specified for cc1 (e.g. 2982 // -S -emit-llvm means -emit-llvm while -emit-llvm -S means -S). However, to 2983 // support driver `-c -Xclang ACTION` (-cc1 -emit-llvm file -main-file-name 2984 // X ACTION), we suppress the error when the two actions are separated by 2985 // -main-file-name. 2986 // 2987 // As an exception, accept composable -ast-dump*. 2988 if (!A->getSpelling().starts_with("-ast-dump")) { 2989 const Arg *SavedAction = nullptr; 2990 for (const Arg *AA : 2991 Args.filtered(OPT_Action_Group, OPT_main_file_name)) { 2992 if (AA->getOption().matches(OPT_main_file_name)) { 2993 SavedAction = nullptr; 2994 } else if (!SavedAction) { 2995 SavedAction = AA; 2996 } else { 2997 if (!A->getOption().matches(OPT_ast_dump_EQ)) 2998 Diags.Report(diag::err_fe_invalid_multiple_actions) 2999 << SavedAction->getSpelling() << A->getSpelling(); 3000 break; 3001 } 3002 } 3003 } 3004 } 3005 3006 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 3007 Opts.Plugins.emplace_back(A->getValue(0)); 3008 Opts.ProgramAction = frontend::PluginAction; 3009 Opts.ActionName = A->getValue(); 3010 } 3011 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 3012 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 3013 3014 for (const std::string &Arg : 3015 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 3016 std::string BlockName; 3017 unsigned MajorVersion; 3018 unsigned MinorVersion; 3019 bool Hashed; 3020 std::string UserInfo; 3021 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 3022 MinorVersion, Hashed, UserInfo)) { 3023 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 3024 3025 continue; 3026 } 3027 3028 // Add the testing module file extension. 3029 Opts.ModuleFileExtensions.push_back( 3030 std::make_shared<TestModuleFileExtension>( 3031 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 3032 } 3033 3034 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 3035 Opts.CodeCompletionAt = 3036 ParsedSourceLocation::FromString(A->getValue()); 3037 if (Opts.CodeCompletionAt.FileName.empty()) 3038 Diags.Report(diag::err_drv_invalid_value) 3039 << A->getAsString(Args) << A->getValue(); 3040 } 3041 3042 Opts.Plugins = Args.getAllArgValues(OPT_load); 3043 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 3044 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 3045 // Only the -fmodule-file=<file> form. 3046 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3047 StringRef Val = A->getValue(); 3048 if (!Val.contains('=')) 3049 Opts.ModuleFiles.push_back(std::string(Val)); 3050 } 3051 3052 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 3053 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 3054 << "-emit-module"; 3055 if (Args.hasArg(OPT_fclangir) || Args.hasArg(OPT_emit_cir)) 3056 Opts.UseClangIRPipeline = true; 3057 3058 if (Args.hasArg(OPT_aux_target_cpu)) 3059 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 3060 if (Args.hasArg(OPT_aux_target_feature)) 3061 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 3062 3063 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 3064 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 3065 Diags.Report(diag::err_drv_argument_not_allowed_with) 3066 << "ARC migration" << "ObjC migration"; 3067 } 3068 3069 InputKind DashX(Language::Unknown); 3070 if (const Arg *A = Args.getLastArg(OPT_x)) { 3071 StringRef XValue = A->getValue(); 3072 3073 // Parse suffixes: 3074 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 3075 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 3076 bool Preprocessed = XValue.consume_back("-cpp-output"); 3077 bool ModuleMap = XValue.consume_back("-module-map"); 3078 // Detect and consume the header indicator. 3079 bool IsHeader = 3080 XValue != "precompiled-header" && XValue.consume_back("-header"); 3081 3082 // If we have c++-{user,system}-header, that indicates a header unit input 3083 // likewise, if the user put -fmodule-header together with a header with an 3084 // absolute path (header-unit-header). 3085 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 3086 if (IsHeader || Preprocessed) { 3087 if (XValue.consume_back("-header-unit")) 3088 HUK = InputKind::HeaderUnit_Abs; 3089 else if (XValue.consume_back("-system")) 3090 HUK = InputKind::HeaderUnit_System; 3091 else if (XValue.consume_back("-user")) 3092 HUK = InputKind::HeaderUnit_User; 3093 } 3094 3095 // The value set by this processing is an un-preprocessed source which is 3096 // not intended to be a module map or header unit. 3097 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 3098 HUK == InputKind::HeaderUnit_None; 3099 3100 // Principal languages. 3101 DashX = llvm::StringSwitch<InputKind>(XValue) 3102 .Case("c", Language::C) 3103 .Case("cl", Language::OpenCL) 3104 .Case("clcpp", Language::OpenCLCXX) 3105 .Case("cuda", Language::CUDA) 3106 .Case("hip", Language::HIP) 3107 .Case("c++", Language::CXX) 3108 .Case("objective-c", Language::ObjC) 3109 .Case("objective-c++", Language::ObjCXX) 3110 .Case("hlsl", Language::HLSL) 3111 .Default(Language::Unknown); 3112 3113 // "objc[++]-cpp-output" is an acceptable synonym for 3114 // "objective-c[++]-cpp-output". 3115 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 3116 HUK == InputKind::HeaderUnit_None) 3117 DashX = llvm::StringSwitch<InputKind>(XValue) 3118 .Case("objc", Language::ObjC) 3119 .Case("objc++", Language::ObjCXX) 3120 .Default(Language::Unknown); 3121 3122 // Some special cases cannot be combined with suffixes. 3123 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 3124 HUK == InputKind::HeaderUnit_None) 3125 DashX = llvm::StringSwitch<InputKind>(XValue) 3126 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 3127 .Case("assembler-with-cpp", Language::Asm) 3128 .Cases("ast", "pcm", "precompiled-header", 3129 InputKind(Language::Unknown, InputKind::Precompiled)) 3130 .Case("ir", Language::LLVM_IR) 3131 .Case("cir", Language::CIR) 3132 .Default(Language::Unknown); 3133 3134 if (DashX.isUnknown()) 3135 Diags.Report(diag::err_drv_invalid_value) 3136 << A->getAsString(Args) << A->getValue(); 3137 3138 if (Preprocessed) 3139 DashX = DashX.getPreprocessed(); 3140 // A regular header is considered mutually exclusive with a header unit. 3141 if (HUK != InputKind::HeaderUnit_None) { 3142 DashX = DashX.withHeaderUnit(HUK); 3143 IsHeaderFile = true; 3144 } else if (IsHeaderFile) 3145 DashX = DashX.getHeader(); 3146 if (ModuleMap) 3147 DashX = DashX.withFormat(InputKind::ModuleMap); 3148 } 3149 3150 // '-' is the default input if none is given. 3151 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 3152 Opts.Inputs.clear(); 3153 if (Inputs.empty()) 3154 Inputs.push_back("-"); 3155 3156 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 3157 Inputs.size() > 1) 3158 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 3159 3160 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 3161 InputKind IK = DashX; 3162 if (IK.isUnknown()) { 3163 IK = FrontendOptions::getInputKindForExtension( 3164 StringRef(Inputs[i]).rsplit('.').second); 3165 // FIXME: Warn on this? 3166 if (IK.isUnknown()) 3167 IK = Language::C; 3168 // FIXME: Remove this hack. 3169 if (i == 0) 3170 DashX = IK; 3171 } 3172 3173 bool IsSystem = false; 3174 3175 // The -emit-module action implicitly takes a module map. 3176 if (Opts.ProgramAction == frontend::GenerateModule && 3177 IK.getFormat() == InputKind::Source) { 3178 IK = IK.withFormat(InputKind::ModuleMap); 3179 IsSystem = Opts.IsSystemModule; 3180 } 3181 3182 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 3183 } 3184 3185 Opts.DashX = DashX; 3186 3187 return Diags.getNumErrors() == NumErrorsBefore; 3188 } 3189 3190 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 3191 void *MainAddr) { 3192 std::string ClangExecutable = 3193 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 3194 return Driver::GetResourcesPath(ClangExecutable); 3195 } 3196 3197 static void GenerateHeaderSearchArgs(const HeaderSearchOptions &Opts, 3198 ArgumentConsumer Consumer) { 3199 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 3200 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \ 3201 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 3202 #include "clang/Driver/Options.inc" 3203 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3204 3205 if (Opts.UseLibcxx) 3206 GenerateArg(Consumer, OPT_stdlib_EQ, "libc++"); 3207 3208 if (!Opts.ModuleCachePath.empty()) 3209 GenerateArg(Consumer, OPT_fmodules_cache_path, Opts.ModuleCachePath); 3210 3211 for (const auto &File : Opts.PrebuiltModuleFiles) 3212 GenerateArg(Consumer, OPT_fmodule_file, File.first + "=" + File.second); 3213 3214 for (const auto &Path : Opts.PrebuiltModulePaths) 3215 GenerateArg(Consumer, OPT_fprebuilt_module_path, Path); 3216 3217 for (const auto &Macro : Opts.ModulesIgnoreMacros) 3218 GenerateArg(Consumer, OPT_fmodules_ignore_macro, Macro.val()); 3219 3220 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 3221 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 3222 std::optional<bool> IsFramework, 3223 std::optional<bool> IgnoreSysRoot) { 3224 return llvm::is_contained(Groups, Entry.Group) && 3225 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 3226 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 3227 }; 3228 3229 auto It = Opts.UserEntries.begin(); 3230 auto End = Opts.UserEntries.end(); 3231 3232 // Add -I... and -F... options in order. 3233 for (; It < End && Matches(*It, {frontend::Angled}, std::nullopt, true); 3234 ++It) { 3235 OptSpecifier Opt = [It, Matches]() { 3236 if (Matches(*It, frontend::Angled, true, true)) 3237 return OPT_F; 3238 if (Matches(*It, frontend::Angled, false, true)) 3239 return OPT_I; 3240 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 3241 }(); 3242 3243 GenerateArg(Consumer, Opt, It->Path); 3244 }; 3245 3246 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 3247 // have already been generated as "-I[xx]yy". If that's the case, their 3248 // position on command line was such that this has no semantic impact on 3249 // include paths. 3250 for (; It < End && 3251 Matches(*It, {frontend::After, frontend::Angled}, false, true); 3252 ++It) { 3253 OptSpecifier Opt = 3254 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 3255 GenerateArg(Consumer, Opt, It->Path); 3256 } 3257 3258 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3259 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3260 // command line was such that this has no semantic impact on include paths. 3261 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3262 GenerateArg(Consumer, OPT_idirafter, It->Path); 3263 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3264 GenerateArg(Consumer, OPT_iquote, It->Path); 3265 for (; It < End && Matches(*It, {frontend::System}, false, std::nullopt); 3266 ++It) 3267 GenerateArg(Consumer, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3268 It->Path); 3269 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3270 GenerateArg(Consumer, OPT_iframework, It->Path); 3271 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3272 GenerateArg(Consumer, OPT_iframeworkwithsysroot, It->Path); 3273 3274 // Add the paths for the various language specific isystem flags. 3275 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3276 GenerateArg(Consumer, OPT_c_isystem, It->Path); 3277 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3278 GenerateArg(Consumer, OPT_cxx_isystem, It->Path); 3279 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3280 GenerateArg(Consumer, OPT_objc_isystem, It->Path); 3281 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3282 GenerateArg(Consumer, OPT_objcxx_isystem, It->Path); 3283 3284 // Add the internal paths from a driver that detects standard include paths. 3285 // Note: Some paths that came from "-internal-isystem" arguments may have 3286 // already been generated as "-isystem". If that's the case, their position on 3287 // command line was such that this has no semantic impact on include paths. 3288 for (; It < End && 3289 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3290 ++It) { 3291 OptSpecifier Opt = It->Group == frontend::System 3292 ? OPT_internal_isystem 3293 : OPT_internal_externc_isystem; 3294 GenerateArg(Consumer, Opt, It->Path); 3295 } 3296 3297 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3298 3299 // Add the path prefixes which are implicitly treated as being system headers. 3300 for (const auto &P : Opts.SystemHeaderPrefixes) { 3301 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3302 : OPT_no_system_header_prefix; 3303 GenerateArg(Consumer, Opt, P.Prefix); 3304 } 3305 3306 for (const std::string &F : Opts.VFSOverlayFiles) 3307 GenerateArg(Consumer, OPT_ivfsoverlay, F); 3308 } 3309 3310 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3311 DiagnosticsEngine &Diags, 3312 const std::string &WorkingDir) { 3313 unsigned NumErrorsBefore = Diags.getNumErrors(); 3314 3315 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3316 3317 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \ 3318 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 3319 #include "clang/Driver/Options.inc" 3320 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3321 3322 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3323 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3324 3325 // Canonicalize -fmodules-cache-path before storing it. 3326 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3327 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3328 if (WorkingDir.empty()) 3329 llvm::sys::fs::make_absolute(P); 3330 else 3331 llvm::sys::fs::make_absolute(WorkingDir, P); 3332 } 3333 llvm::sys::path::remove_dots(P); 3334 Opts.ModuleCachePath = std::string(P); 3335 3336 // Only the -fmodule-file=<name>=<file> form. 3337 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3338 StringRef Val = A->getValue(); 3339 if (Val.contains('=')) { 3340 auto Split = Val.split('='); 3341 Opts.PrebuiltModuleFiles.insert_or_assign( 3342 std::string(Split.first), std::string(Split.second)); 3343 } 3344 } 3345 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3346 Opts.AddPrebuiltModulePath(A->getValue()); 3347 3348 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3349 StringRef MacroDef = A->getValue(); 3350 Opts.ModulesIgnoreMacros.insert( 3351 llvm::CachedHashString(MacroDef.split('=').first)); 3352 } 3353 3354 // Add -I... and -F... options in order. 3355 bool IsSysrootSpecified = 3356 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3357 3358 // Expand a leading `=` to the sysroot if one was passed (and it's not a 3359 // framework flag). 3360 auto PrefixHeaderPath = [IsSysrootSpecified, 3361 &Opts](const llvm::opt::Arg *A, 3362 bool IsFramework = false) -> std::string { 3363 assert(A->getNumValues() && "Unexpected empty search path flag!"); 3364 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3365 SmallString<32> Buffer; 3366 llvm::sys::path::append(Buffer, Opts.Sysroot, 3367 llvm::StringRef(A->getValue()).substr(1)); 3368 return std::string(Buffer); 3369 } 3370 return A->getValue(); 3371 }; 3372 3373 for (const auto *A : Args.filtered(OPT_I, OPT_F)) { 3374 bool IsFramework = A->getOption().matches(OPT_F); 3375 Opts.AddPath(PrefixHeaderPath(A, IsFramework), frontend::Angled, 3376 IsFramework, /*IgnoreSysroot=*/true); 3377 } 3378 3379 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3380 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3381 for (const auto *A : 3382 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3383 if (A->getOption().matches(OPT_iprefix)) 3384 Prefix = A->getValue(); 3385 else if (A->getOption().matches(OPT_iwithprefix)) 3386 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3387 else 3388 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3389 } 3390 3391 for (const auto *A : Args.filtered(OPT_idirafter)) 3392 Opts.AddPath(PrefixHeaderPath(A), frontend::After, false, true); 3393 for (const auto *A : Args.filtered(OPT_iquote)) 3394 Opts.AddPath(PrefixHeaderPath(A), frontend::Quoted, false, true); 3395 3396 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) { 3397 if (A->getOption().matches(OPT_iwithsysroot)) { 3398 Opts.AddPath(A->getValue(), frontend::System, false, 3399 /*IgnoreSysRoot=*/false); 3400 continue; 3401 } 3402 Opts.AddPath(PrefixHeaderPath(A), frontend::System, false, true); 3403 } 3404 for (const auto *A : Args.filtered(OPT_iframework)) 3405 Opts.AddPath(A->getValue(), frontend::System, true, true); 3406 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3407 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3408 /*IgnoreSysRoot=*/false); 3409 3410 // Add the paths for the various language specific isystem flags. 3411 for (const auto *A : Args.filtered(OPT_c_isystem)) 3412 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3413 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3414 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3415 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3416 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3417 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3418 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3419 3420 // Add the internal paths from a driver that detects standard include paths. 3421 for (const auto *A : 3422 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3423 frontend::IncludeDirGroup Group = frontend::System; 3424 if (A->getOption().matches(OPT_internal_externc_isystem)) 3425 Group = frontend::ExternCSystem; 3426 Opts.AddPath(A->getValue(), Group, false, true); 3427 } 3428 3429 // Add the path prefixes which are implicitly treated as being system headers. 3430 for (const auto *A : 3431 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3432 Opts.AddSystemHeaderPrefix( 3433 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3434 3435 for (const auto *A : Args.filtered(OPT_ivfsoverlay, OPT_vfsoverlay)) 3436 Opts.AddVFSOverlayFile(A->getValue()); 3437 3438 return Diags.getNumErrors() == NumErrorsBefore; 3439 } 3440 3441 static void GenerateAPINotesArgs(const APINotesOptions &Opts, 3442 ArgumentConsumer Consumer) { 3443 if (!Opts.SwiftVersion.empty()) 3444 GenerateArg(Consumer, OPT_fapinotes_swift_version, 3445 Opts.SwiftVersion.getAsString()); 3446 3447 for (const auto &Path : Opts.ModuleSearchPaths) 3448 GenerateArg(Consumer, OPT_iapinotes_modules, Path); 3449 } 3450 3451 static void ParseAPINotesArgs(APINotesOptions &Opts, ArgList &Args, 3452 DiagnosticsEngine &diags) { 3453 if (const Arg *A = Args.getLastArg(OPT_fapinotes_swift_version)) { 3454 if (Opts.SwiftVersion.tryParse(A->getValue())) 3455 diags.Report(diag::err_drv_invalid_value) 3456 << A->getAsString(Args) << A->getValue(); 3457 } 3458 for (const Arg *A : Args.filtered(OPT_iapinotes_modules)) 3459 Opts.ModuleSearchPaths.push_back(A->getValue()); 3460 } 3461 3462 static void GeneratePointerAuthArgs(const LangOptions &Opts, 3463 ArgumentConsumer Consumer) { 3464 if (Opts.PointerAuthIntrinsics) 3465 GenerateArg(Consumer, OPT_fptrauth_intrinsics); 3466 if (Opts.PointerAuthCalls) 3467 GenerateArg(Consumer, OPT_fptrauth_calls); 3468 if (Opts.PointerAuthReturns) 3469 GenerateArg(Consumer, OPT_fptrauth_returns); 3470 if (Opts.PointerAuthIndirectGotos) 3471 GenerateArg(Consumer, OPT_fptrauth_indirect_gotos); 3472 if (Opts.PointerAuthAuthTraps) 3473 GenerateArg(Consumer, OPT_fptrauth_auth_traps); 3474 if (Opts.PointerAuthVTPtrAddressDiscrimination) 3475 GenerateArg(Consumer, OPT_fptrauth_vtable_pointer_address_discrimination); 3476 if (Opts.PointerAuthVTPtrTypeDiscrimination) 3477 GenerateArg(Consumer, OPT_fptrauth_vtable_pointer_type_discrimination); 3478 if (Opts.PointerAuthTypeInfoVTPtrDiscrimination) 3479 GenerateArg(Consumer, OPT_fptrauth_type_info_vtable_pointer_discrimination); 3480 if (Opts.PointerAuthFunctionTypeDiscrimination) 3481 GenerateArg(Consumer, OPT_fptrauth_function_pointer_type_discrimination); 3482 if (Opts.PointerAuthInitFini) 3483 GenerateArg(Consumer, OPT_fptrauth_init_fini); 3484 if (Opts.PointerAuthInitFiniAddressDiscrimination) 3485 GenerateArg(Consumer, OPT_fptrauth_init_fini_address_discrimination); 3486 if (Opts.PointerAuthELFGOT) 3487 GenerateArg(Consumer, OPT_fptrauth_elf_got); 3488 if (Opts.AArch64JumpTableHardening) 3489 GenerateArg(Consumer, OPT_faarch64_jump_table_hardening); 3490 } 3491 3492 static void ParsePointerAuthArgs(LangOptions &Opts, ArgList &Args, 3493 DiagnosticsEngine &Diags) { 3494 Opts.PointerAuthIntrinsics = Args.hasArg(OPT_fptrauth_intrinsics); 3495 Opts.PointerAuthCalls = Args.hasArg(OPT_fptrauth_calls); 3496 Opts.PointerAuthReturns = Args.hasArg(OPT_fptrauth_returns); 3497 Opts.PointerAuthIndirectGotos = Args.hasArg(OPT_fptrauth_indirect_gotos); 3498 Opts.PointerAuthAuthTraps = Args.hasArg(OPT_fptrauth_auth_traps); 3499 Opts.PointerAuthVTPtrAddressDiscrimination = 3500 Args.hasArg(OPT_fptrauth_vtable_pointer_address_discrimination); 3501 Opts.PointerAuthVTPtrTypeDiscrimination = 3502 Args.hasArg(OPT_fptrauth_vtable_pointer_type_discrimination); 3503 Opts.PointerAuthTypeInfoVTPtrDiscrimination = 3504 Args.hasArg(OPT_fptrauth_type_info_vtable_pointer_discrimination); 3505 Opts.PointerAuthFunctionTypeDiscrimination = 3506 Args.hasArg(OPT_fptrauth_function_pointer_type_discrimination); 3507 Opts.PointerAuthInitFini = Args.hasArg(OPT_fptrauth_init_fini); 3508 Opts.PointerAuthInitFiniAddressDiscrimination = 3509 Args.hasArg(OPT_fptrauth_init_fini_address_discrimination); 3510 Opts.PointerAuthELFGOT = Args.hasArg(OPT_fptrauth_elf_got); 3511 Opts.AArch64JumpTableHardening = 3512 Args.hasArg(OPT_faarch64_jump_table_hardening); 3513 } 3514 3515 /// Check if input file kind and language standard are compatible. 3516 static bool IsInputCompatibleWithStandard(InputKind IK, 3517 const LangStandard &S) { 3518 switch (IK.getLanguage()) { 3519 case Language::Unknown: 3520 case Language::LLVM_IR: 3521 case Language::CIR: 3522 llvm_unreachable("should not parse language flags for this input"); 3523 3524 case Language::C: 3525 case Language::ObjC: 3526 return S.getLanguage() == Language::C; 3527 3528 case Language::OpenCL: 3529 return S.getLanguage() == Language::OpenCL || 3530 S.getLanguage() == Language::OpenCLCXX; 3531 3532 case Language::OpenCLCXX: 3533 return S.getLanguage() == Language::OpenCLCXX; 3534 3535 case Language::CXX: 3536 case Language::ObjCXX: 3537 return S.getLanguage() == Language::CXX; 3538 3539 case Language::CUDA: 3540 // FIXME: What -std= values should be permitted for CUDA compilations? 3541 return S.getLanguage() == Language::CUDA || 3542 S.getLanguage() == Language::CXX; 3543 3544 case Language::HIP: 3545 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3546 3547 case Language::Asm: 3548 // Accept (and ignore) all -std= values. 3549 // FIXME: The -std= value is not ignored; it affects the tokenization 3550 // and preprocessing rules if we're preprocessing this asm input. 3551 return true; 3552 3553 case Language::HLSL: 3554 return S.getLanguage() == Language::HLSL; 3555 } 3556 3557 llvm_unreachable("unexpected input language"); 3558 } 3559 3560 /// Get language name for given input kind. 3561 static StringRef GetInputKindName(InputKind IK) { 3562 switch (IK.getLanguage()) { 3563 case Language::C: 3564 return "C"; 3565 case Language::ObjC: 3566 return "Objective-C"; 3567 case Language::CXX: 3568 return "C++"; 3569 case Language::ObjCXX: 3570 return "Objective-C++"; 3571 case Language::OpenCL: 3572 return "OpenCL"; 3573 case Language::OpenCLCXX: 3574 return "C++ for OpenCL"; 3575 case Language::CUDA: 3576 return "CUDA"; 3577 case Language::HIP: 3578 return "HIP"; 3579 3580 case Language::Asm: 3581 return "Asm"; 3582 case Language::LLVM_IR: 3583 return "LLVM IR"; 3584 case Language::CIR: 3585 return "Clang IR"; 3586 3587 case Language::HLSL: 3588 return "HLSL"; 3589 3590 case Language::Unknown: 3591 break; 3592 } 3593 llvm_unreachable("unknown input language"); 3594 } 3595 3596 void CompilerInvocationBase::GenerateLangArgs(const LangOptions &Opts, 3597 ArgumentConsumer Consumer, 3598 const llvm::Triple &T, 3599 InputKind IK) { 3600 if (IK.getFormat() == InputKind::Precompiled || 3601 IK.getLanguage() == Language::LLVM_IR || 3602 IK.getLanguage() == Language::CIR) { 3603 if (Opts.ObjCAutoRefCount) 3604 GenerateArg(Consumer, OPT_fobjc_arc); 3605 if (Opts.PICLevel != 0) 3606 GenerateArg(Consumer, OPT_pic_level, Twine(Opts.PICLevel)); 3607 if (Opts.PIE) 3608 GenerateArg(Consumer, OPT_pic_is_pie); 3609 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3610 GenerateArg(Consumer, OPT_fsanitize_EQ, Sanitizer); 3611 3612 return; 3613 } 3614 3615 OptSpecifier StdOpt; 3616 switch (Opts.LangStd) { 3617 case LangStandard::lang_opencl10: 3618 case LangStandard::lang_opencl11: 3619 case LangStandard::lang_opencl12: 3620 case LangStandard::lang_opencl20: 3621 case LangStandard::lang_opencl30: 3622 case LangStandard::lang_openclcpp10: 3623 case LangStandard::lang_openclcpp2021: 3624 StdOpt = OPT_cl_std_EQ; 3625 break; 3626 default: 3627 StdOpt = OPT_std_EQ; 3628 break; 3629 } 3630 3631 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3632 GenerateArg(Consumer, StdOpt, LangStandard.getName()); 3633 3634 if (Opts.IncludeDefaultHeader) 3635 GenerateArg(Consumer, OPT_finclude_default_header); 3636 if (Opts.DeclareOpenCLBuiltins) 3637 GenerateArg(Consumer, OPT_fdeclare_opencl_builtins); 3638 3639 const LangOptions *LangOpts = &Opts; 3640 3641 #define LANG_OPTION_WITH_MARSHALLING(...) \ 3642 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 3643 #include "clang/Driver/Options.inc" 3644 #undef LANG_OPTION_WITH_MARSHALLING 3645 3646 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3647 3648 if (Opts.ObjC) { 3649 GenerateArg(Consumer, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString()); 3650 3651 if (Opts.GC == LangOptions::GCOnly) 3652 GenerateArg(Consumer, OPT_fobjc_gc_only); 3653 else if (Opts.GC == LangOptions::HybridGC) 3654 GenerateArg(Consumer, OPT_fobjc_gc); 3655 else if (Opts.ObjCAutoRefCount == 1) 3656 GenerateArg(Consumer, OPT_fobjc_arc); 3657 3658 if (Opts.ObjCWeakRuntime) 3659 GenerateArg(Consumer, OPT_fobjc_runtime_has_weak); 3660 3661 if (Opts.ObjCWeak) 3662 GenerateArg(Consumer, OPT_fobjc_weak); 3663 3664 if (Opts.ObjCSubscriptingLegacyRuntime) 3665 GenerateArg(Consumer, OPT_fobjc_subscripting_legacy_runtime); 3666 } 3667 3668 if (Opts.GNUCVersion != 0) { 3669 unsigned Major = Opts.GNUCVersion / 100 / 100; 3670 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3671 unsigned Patch = Opts.GNUCVersion % 100; 3672 GenerateArg(Consumer, OPT_fgnuc_version_EQ, 3673 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch)); 3674 } 3675 3676 if (Opts.IgnoreXCOFFVisibility) 3677 GenerateArg(Consumer, OPT_mignore_xcoff_visibility); 3678 3679 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3680 GenerateArg(Consumer, OPT_ftrapv); 3681 GenerateArg(Consumer, OPT_ftrapv_handler, Opts.OverflowHandler); 3682 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3683 GenerateArg(Consumer, OPT_fwrapv); 3684 } 3685 3686 if (Opts.MSCompatibilityVersion != 0) { 3687 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3688 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3689 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3690 GenerateArg(Consumer, OPT_fms_compatibility_version, 3691 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor)); 3692 } 3693 3694 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) || 3695 T.isOSzOS()) { 3696 if (!Opts.Trigraphs) 3697 GenerateArg(Consumer, OPT_fno_trigraphs); 3698 } else { 3699 if (Opts.Trigraphs) 3700 GenerateArg(Consumer, OPT_ftrigraphs); 3701 } 3702 3703 if (T.isOSzOS() && !Opts.ZOSExt) 3704 GenerateArg(Consumer, OPT_fno_zos_extensions); 3705 else if (Opts.ZOSExt) 3706 GenerateArg(Consumer, OPT_fzos_extensions); 3707 3708 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3709 GenerateArg(Consumer, OPT_fblocks); 3710 3711 if (Opts.ConvergentFunctions) 3712 GenerateArg(Consumer, OPT_fconvergent_functions); 3713 else 3714 GenerateArg(Consumer, OPT_fno_convergent_functions); 3715 3716 if (Opts.NoBuiltin && !Opts.Freestanding) 3717 GenerateArg(Consumer, OPT_fno_builtin); 3718 3719 if (!Opts.NoBuiltin) 3720 for (const auto &Func : Opts.NoBuiltinFuncs) 3721 GenerateArg(Consumer, OPT_fno_builtin_, Func); 3722 3723 if (Opts.LongDoubleSize == 128) 3724 GenerateArg(Consumer, OPT_mlong_double_128); 3725 else if (Opts.LongDoubleSize == 64) 3726 GenerateArg(Consumer, OPT_mlong_double_64); 3727 else if (Opts.LongDoubleSize == 80) 3728 GenerateArg(Consumer, OPT_mlong_double_80); 3729 3730 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3731 3732 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3733 // '-fopenmp-targets='. 3734 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3735 GenerateArg(Consumer, OPT_fopenmp); 3736 3737 if (Opts.OpenMP != 51) 3738 GenerateArg(Consumer, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP)); 3739 3740 if (!Opts.OpenMPUseTLS) 3741 GenerateArg(Consumer, OPT_fnoopenmp_use_tls); 3742 3743 if (Opts.OpenMPIsTargetDevice) 3744 GenerateArg(Consumer, OPT_fopenmp_is_target_device); 3745 3746 if (Opts.OpenMPIRBuilder) 3747 GenerateArg(Consumer, OPT_fopenmp_enable_irbuilder); 3748 } 3749 3750 if (Opts.OpenMPSimd) { 3751 GenerateArg(Consumer, OPT_fopenmp_simd); 3752 3753 if (Opts.OpenMP != 51) 3754 GenerateArg(Consumer, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP)); 3755 } 3756 3757 if (Opts.OpenMPThreadSubscription) 3758 GenerateArg(Consumer, OPT_fopenmp_assume_threads_oversubscription); 3759 3760 if (Opts.OpenMPTeamSubscription) 3761 GenerateArg(Consumer, OPT_fopenmp_assume_teams_oversubscription); 3762 3763 if (Opts.OpenMPTargetDebug != 0) 3764 GenerateArg(Consumer, OPT_fopenmp_target_debug_EQ, 3765 Twine(Opts.OpenMPTargetDebug)); 3766 3767 if (Opts.OpenMPCUDANumSMs != 0) 3768 GenerateArg(Consumer, OPT_fopenmp_cuda_number_of_sm_EQ, 3769 Twine(Opts.OpenMPCUDANumSMs)); 3770 3771 if (Opts.OpenMPCUDABlocksPerSM != 0) 3772 GenerateArg(Consumer, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3773 Twine(Opts.OpenMPCUDABlocksPerSM)); 3774 3775 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3776 GenerateArg(Consumer, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3777 Twine(Opts.OpenMPCUDAReductionBufNum)); 3778 3779 if (!Opts.OMPTargetTriples.empty()) { 3780 std::string Targets; 3781 llvm::raw_string_ostream OS(Targets); 3782 llvm::interleave( 3783 Opts.OMPTargetTriples, OS, 3784 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3785 GenerateArg(Consumer, OPT_fopenmp_targets_EQ, Targets); 3786 } 3787 3788 if (!Opts.OMPHostIRFile.empty()) 3789 GenerateArg(Consumer, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile); 3790 3791 if (Opts.OpenMPCUDAMode) 3792 GenerateArg(Consumer, OPT_fopenmp_cuda_mode); 3793 3794 if (Opts.OpenACC) { 3795 GenerateArg(Consumer, OPT_fopenacc); 3796 if (!Opts.OpenACCMacroOverride.empty()) 3797 GenerateArg(Consumer, OPT_openacc_macro_override, 3798 Opts.OpenACCMacroOverride); 3799 } 3800 3801 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3802 // generated from CodeGenOptions. 3803 3804 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3805 GenerateArg(Consumer, OPT_ffp_contract, "fast"); 3806 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3807 GenerateArg(Consumer, OPT_ffp_contract, "on"); 3808 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3809 GenerateArg(Consumer, OPT_ffp_contract, "off"); 3810 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3811 GenerateArg(Consumer, OPT_ffp_contract, "fast-honor-pragmas"); 3812 3813 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3814 GenerateArg(Consumer, OPT_fsanitize_EQ, Sanitizer); 3815 3816 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3817 for (const std::string &F : Opts.NoSanitizeFiles) 3818 GenerateArg(Consumer, OPT_fsanitize_ignorelist_EQ, F); 3819 3820 switch (Opts.getClangABICompat()) { 3821 case LangOptions::ClangABI::Ver3_8: 3822 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "3.8"); 3823 break; 3824 case LangOptions::ClangABI::Ver4: 3825 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "4.0"); 3826 break; 3827 case LangOptions::ClangABI::Ver6: 3828 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "6.0"); 3829 break; 3830 case LangOptions::ClangABI::Ver7: 3831 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "7.0"); 3832 break; 3833 case LangOptions::ClangABI::Ver9: 3834 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "9.0"); 3835 break; 3836 case LangOptions::ClangABI::Ver11: 3837 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "11.0"); 3838 break; 3839 case LangOptions::ClangABI::Ver12: 3840 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "12.0"); 3841 break; 3842 case LangOptions::ClangABI::Ver14: 3843 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "14.0"); 3844 break; 3845 case LangOptions::ClangABI::Ver15: 3846 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "15.0"); 3847 break; 3848 case LangOptions::ClangABI::Ver17: 3849 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "17.0"); 3850 break; 3851 case LangOptions::ClangABI::Ver18: 3852 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "18.0"); 3853 break; 3854 case LangOptions::ClangABI::Ver19: 3855 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "19.0"); 3856 break; 3857 case LangOptions::ClangABI::Latest: 3858 break; 3859 } 3860 3861 if (Opts.getSignReturnAddressScope() == 3862 LangOptions::SignReturnAddressScopeKind::All) 3863 GenerateArg(Consumer, OPT_msign_return_address_EQ, "all"); 3864 else if (Opts.getSignReturnAddressScope() == 3865 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3866 GenerateArg(Consumer, OPT_msign_return_address_EQ, "non-leaf"); 3867 3868 if (Opts.getSignReturnAddressKey() == 3869 LangOptions::SignReturnAddressKeyKind::BKey) 3870 GenerateArg(Consumer, OPT_msign_return_address_key_EQ, "b_key"); 3871 3872 if (Opts.CXXABI) 3873 GenerateArg(Consumer, OPT_fcxx_abi_EQ, 3874 TargetCXXABI::getSpelling(*Opts.CXXABI)); 3875 3876 if (Opts.RelativeCXXABIVTables) 3877 GenerateArg(Consumer, OPT_fexperimental_relative_cxx_abi_vtables); 3878 else 3879 GenerateArg(Consumer, OPT_fno_experimental_relative_cxx_abi_vtables); 3880 3881 if (Opts.UseTargetPathSeparator) 3882 GenerateArg(Consumer, OPT_ffile_reproducible); 3883 else 3884 GenerateArg(Consumer, OPT_fno_file_reproducible); 3885 3886 for (const auto &MP : Opts.MacroPrefixMap) 3887 GenerateArg(Consumer, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second); 3888 3889 if (!Opts.RandstructSeed.empty()) 3890 GenerateArg(Consumer, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed); 3891 } 3892 3893 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3894 InputKind IK, const llvm::Triple &T, 3895 std::vector<std::string> &Includes, 3896 DiagnosticsEngine &Diags) { 3897 unsigned NumErrorsBefore = Diags.getNumErrors(); 3898 3899 if (IK.getFormat() == InputKind::Precompiled || 3900 IK.getLanguage() == Language::LLVM_IR || 3901 IK.getLanguage() == Language::CIR) { 3902 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3903 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3904 // what the input type is. 3905 if (Args.hasArg(OPT_fobjc_arc)) 3906 Opts.ObjCAutoRefCount = 1; 3907 // PICLevel and PIELevel are needed during code generation and this should 3908 // be set regardless of the input type. 3909 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3910 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3911 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3912 Diags, Opts.Sanitize); 3913 3914 return Diags.getNumErrors() == NumErrorsBefore; 3915 } 3916 3917 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3918 // FIXME: Should we really be parsing this for an Language::Asm input? 3919 3920 // FIXME: Cleanup per-file based stuff. 3921 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3922 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3923 LangStd = LangStandard::getLangKind(A->getValue()); 3924 if (LangStd == LangStandard::lang_unspecified) { 3925 Diags.Report(diag::err_drv_invalid_value) 3926 << A->getAsString(Args) << A->getValue(); 3927 // Report supported standards with short description. 3928 for (unsigned KindValue = 0; 3929 KindValue != LangStandard::lang_unspecified; 3930 ++KindValue) { 3931 const LangStandard &Std = LangStandard::getLangStandardForKind( 3932 static_cast<LangStandard::Kind>(KindValue)); 3933 if (IsInputCompatibleWithStandard(IK, Std)) { 3934 auto Diag = Diags.Report(diag::note_drv_use_standard); 3935 Diag << Std.getName() << Std.getDescription(); 3936 unsigned NumAliases = 0; 3937 #define LANGSTANDARD(id, name, lang, desc, features) 3938 #define LANGSTANDARD_ALIAS(id, alias) \ 3939 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3940 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3941 #include "clang/Basic/LangStandards.def" 3942 Diag << NumAliases; 3943 #define LANGSTANDARD(id, name, lang, desc, features) 3944 #define LANGSTANDARD_ALIAS(id, alias) \ 3945 if (KindValue == LangStandard::lang_##id) Diag << alias; 3946 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3947 #include "clang/Basic/LangStandards.def" 3948 } 3949 } 3950 } else { 3951 // Valid standard, check to make sure language and standard are 3952 // compatible. 3953 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3954 if (!IsInputCompatibleWithStandard(IK, Std)) { 3955 Diags.Report(diag::err_drv_argument_not_allowed_with) 3956 << A->getAsString(Args) << GetInputKindName(IK); 3957 } 3958 } 3959 } 3960 3961 // -cl-std only applies for OpenCL language standards. 3962 // Override the -std option in this case. 3963 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3964 LangStandard::Kind OpenCLLangStd 3965 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3966 .Cases("cl", "CL", LangStandard::lang_opencl10) 3967 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3968 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3969 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3970 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3971 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3972 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3973 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3974 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3975 .Default(LangStandard::lang_unspecified); 3976 3977 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3978 Diags.Report(diag::err_drv_invalid_value) 3979 << A->getAsString(Args) << A->getValue(); 3980 } 3981 else 3982 LangStd = OpenCLLangStd; 3983 } 3984 3985 // These need to be parsed now. They are used to set OpenCL defaults. 3986 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3987 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3988 3989 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3990 3991 // The key paths of codegen options defined in Options.td start with 3992 // "LangOpts->". Let's provide the expected variable name and type. 3993 LangOptions *LangOpts = &Opts; 3994 3995 #define LANG_OPTION_WITH_MARSHALLING(...) \ 3996 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 3997 #include "clang/Driver/Options.inc" 3998 #undef LANG_OPTION_WITH_MARSHALLING 3999 4000 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4001 StringRef Name = A->getValue(); 4002 if (Name == "full" || Name == "branch") { 4003 Opts.CFProtectionBranch = 1; 4004 } 4005 } 4006 4007 if (Opts.CFProtectionBranch) { 4008 if (const Arg *A = Args.getLastArg(OPT_mcf_branch_label_scheme_EQ)) { 4009 const auto Scheme = 4010 llvm::StringSwitch<CFBranchLabelSchemeKind>(A->getValue()) 4011 #define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \ 4012 .Case(#FlagVal, CFBranchLabelSchemeKind::Kind) 4013 #include "clang/Basic/CFProtectionOptions.def" 4014 .Default(CFBranchLabelSchemeKind::Default); 4015 Opts.setCFBranchLabelScheme(Scheme); 4016 } 4017 } 4018 4019 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 4020 !Args.hasArg(OPT_sycl_std_EQ)) { 4021 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 4022 // provide -sycl-std=, we want to default it to whatever the default SYCL 4023 // version is. I could not find a way to express this with the options 4024 // tablegen because we still want this value to be SYCL_None when the user 4025 // is not in device or host mode. 4026 Opts.setSYCLVersion(LangOptions::SYCL_Default); 4027 } 4028 4029 if (Opts.ObjC) { 4030 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 4031 StringRef value = arg->getValue(); 4032 if (Opts.ObjCRuntime.tryParse(value)) 4033 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 4034 } 4035 4036 if (Args.hasArg(OPT_fobjc_gc_only)) 4037 Opts.setGC(LangOptions::GCOnly); 4038 else if (Args.hasArg(OPT_fobjc_gc)) 4039 Opts.setGC(LangOptions::HybridGC); 4040 else if (Args.hasArg(OPT_fobjc_arc)) { 4041 Opts.ObjCAutoRefCount = 1; 4042 if (!Opts.ObjCRuntime.allowsARC()) 4043 Diags.Report(diag::err_arc_unsupported_on_runtime); 4044 } 4045 4046 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 4047 // whether the feature is actually enabled. This is predominantly 4048 // determined by -fobjc-runtime, but we allow it to be overridden 4049 // from the command line for testing purposes. 4050 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 4051 Opts.ObjCWeakRuntime = 1; 4052 else 4053 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 4054 4055 // ObjCWeak determines whether __weak is actually enabled. 4056 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 4057 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 4058 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 4059 assert(!Opts.ObjCWeak); 4060 } else if (Opts.getGC() != LangOptions::NonGC) { 4061 Diags.Report(diag::err_objc_weak_with_gc); 4062 } else if (!Opts.ObjCWeakRuntime) { 4063 Diags.Report(diag::err_objc_weak_unsupported); 4064 } else { 4065 Opts.ObjCWeak = 1; 4066 } 4067 } else if (Opts.ObjCAutoRefCount) { 4068 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 4069 } 4070 4071 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 4072 Opts.ObjCSubscriptingLegacyRuntime = 4073 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 4074 } 4075 4076 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 4077 // Check that the version has 1 to 3 components and the minor and patch 4078 // versions fit in two decimal digits. 4079 VersionTuple GNUCVer; 4080 bool Invalid = GNUCVer.tryParse(A->getValue()); 4081 unsigned Major = GNUCVer.getMajor(); 4082 unsigned Minor = GNUCVer.getMinor().value_or(0); 4083 unsigned Patch = GNUCVer.getSubminor().value_or(0); 4084 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 4085 Diags.Report(diag::err_drv_invalid_value) 4086 << A->getAsString(Args) << A->getValue(); 4087 } 4088 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 4089 } 4090 4091 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 4092 Opts.IgnoreXCOFFVisibility = 1; 4093 4094 if (Args.hasArg(OPT_ftrapv)) { 4095 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 4096 // Set the handler, if one is specified. 4097 Opts.OverflowHandler = 4098 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 4099 } 4100 else if (Args.hasArg(OPT_fwrapv)) 4101 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 4102 4103 Opts.MSCompatibilityVersion = 0; 4104 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 4105 VersionTuple VT; 4106 if (VT.tryParse(A->getValue())) 4107 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 4108 << A->getValue(); 4109 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 4110 VT.getMinor().value_or(0) * 100000 + 4111 VT.getSubminor().value_or(0); 4112 } 4113 4114 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 4115 // is specified, or -std is set to a conforming mode. 4116 // Trigraphs are disabled by default in C++17 and C23 onwards. 4117 // For z/OS, trigraphs are enabled by default (without regard to the above). 4118 Opts.Trigraphs = 4119 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) || 4120 T.isOSzOS(); 4121 Opts.Trigraphs = 4122 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 4123 4124 Opts.ZOSExt = 4125 Args.hasFlag(OPT_fzos_extensions, OPT_fno_zos_extensions, T.isOSzOS()); 4126 4127 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 4128 && Opts.OpenCLVersion == 200); 4129 4130 bool HasConvergentOperations = Opts.OpenMPIsTargetDevice || Opts.OpenCL || 4131 Opts.CUDAIsDevice || Opts.SYCLIsDevice || 4132 Opts.HLSL || T.isAMDGPU() || T.isNVPTX(); 4133 Opts.ConvergentFunctions = 4134 Args.hasFlag(OPT_fconvergent_functions, OPT_fno_convergent_functions, 4135 HasConvergentOperations); 4136 4137 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 4138 if (!Opts.NoBuiltin) 4139 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 4140 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 4141 if (A->getOption().matches(options::OPT_mlong_double_64)) 4142 Opts.LongDoubleSize = 64; 4143 else if (A->getOption().matches(options::OPT_mlong_double_80)) 4144 Opts.LongDoubleSize = 80; 4145 else if (A->getOption().matches(options::OPT_mlong_double_128)) 4146 Opts.LongDoubleSize = 128; 4147 else 4148 Opts.LongDoubleSize = 0; 4149 } 4150 if (Opts.FastRelaxedMath || Opts.CLUnsafeMath) 4151 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4152 4153 llvm::sort(Opts.ModuleFeatures); 4154 4155 // -mrtd option 4156 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 4157 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 4158 Diags.Report(diag::err_drv_argument_not_allowed_with) 4159 << A->getSpelling() << "-fdefault-calling-conv"; 4160 else { 4161 switch (T.getArch()) { 4162 case llvm::Triple::x86: 4163 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 4164 break; 4165 case llvm::Triple::m68k: 4166 Opts.setDefaultCallingConv(LangOptions::DCC_RtdCall); 4167 break; 4168 default: 4169 Diags.Report(diag::err_drv_argument_not_allowed_with) 4170 << A->getSpelling() << T.getTriple(); 4171 } 4172 } 4173 } 4174 4175 // Check if -fopenmp is specified and set default version to 5.0. 4176 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 51 : 0; 4177 // Check if -fopenmp-simd is specified. 4178 bool IsSimdSpecified = 4179 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 4180 /*Default=*/false); 4181 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 4182 Opts.OpenMPUseTLS = 4183 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 4184 Opts.OpenMPIsTargetDevice = 4185 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_target_device); 4186 Opts.OpenMPIRBuilder = 4187 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 4188 bool IsTargetSpecified = 4189 Opts.OpenMPIsTargetDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 4190 4191 if (Opts.OpenMP || Opts.OpenMPSimd) { 4192 if (int Version = getLastArgIntValue( 4193 Args, OPT_fopenmp_version_EQ, 4194 (IsSimdSpecified || IsTargetSpecified) ? 51 : Opts.OpenMP, Diags)) 4195 Opts.OpenMP = Version; 4196 // Provide diagnostic when a given target is not expected to be an OpenMP 4197 // device or host. 4198 if (!Opts.OpenMPIsTargetDevice) { 4199 switch (T.getArch()) { 4200 default: 4201 break; 4202 // Add unsupported host targets here: 4203 case llvm::Triple::nvptx: 4204 case llvm::Triple::nvptx64: 4205 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 4206 break; 4207 } 4208 } 4209 } 4210 4211 // Set the flag to prevent the implementation from emitting device exception 4212 // handling code for those requiring so. 4213 if ((Opts.OpenMPIsTargetDevice && (T.isNVPTX() || T.isAMDGCN())) || 4214 Opts.OpenCLCPlusPlus) { 4215 4216 Opts.Exceptions = 0; 4217 Opts.CXXExceptions = 0; 4218 } 4219 if (Opts.OpenMPIsTargetDevice && T.isNVPTX()) { 4220 Opts.OpenMPCUDANumSMs = 4221 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 4222 Opts.OpenMPCUDANumSMs, Diags); 4223 Opts.OpenMPCUDABlocksPerSM = 4224 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 4225 Opts.OpenMPCUDABlocksPerSM, Diags); 4226 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 4227 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 4228 Opts.OpenMPCUDAReductionBufNum, Diags); 4229 } 4230 4231 // Set the value of the debugging flag used in the new offloading device RTL. 4232 // Set either by a specific value or to a default if not specified. 4233 if (Opts.OpenMPIsTargetDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 4234 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 4235 Opts.OpenMPTargetDebug = getLastArgIntValue( 4236 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 4237 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 4238 Opts.OpenMPTargetDebug = 1; 4239 } 4240 4241 if (Opts.OpenMPIsTargetDevice) { 4242 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 4243 Opts.OpenMPTeamSubscription = true; 4244 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 4245 Opts.OpenMPThreadSubscription = true; 4246 } 4247 4248 // Get the OpenMP target triples if any. 4249 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 4250 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 4251 auto getArchPtrSize = [](const llvm::Triple &T) { 4252 if (T.isArch16Bit()) 4253 return Arch16Bit; 4254 if (T.isArch32Bit()) 4255 return Arch32Bit; 4256 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 4257 return Arch64Bit; 4258 }; 4259 4260 for (unsigned i = 0; i < A->getNumValues(); ++i) { 4261 llvm::Triple TT(A->getValue(i)); 4262 4263 if (TT.getArch() == llvm::Triple::UnknownArch || 4264 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 4265 TT.getArch() == llvm::Triple::spirv64 || 4266 TT.getArch() == llvm::Triple::systemz || 4267 TT.getArch() == llvm::Triple::loongarch64 || 4268 TT.getArch() == llvm::Triple::nvptx || 4269 TT.getArch() == llvm::Triple::nvptx64 || 4270 TT.getArch() == llvm::Triple::amdgcn || 4271 TT.getArch() == llvm::Triple::x86 || 4272 TT.getArch() == llvm::Triple::x86_64)) 4273 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 4274 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 4275 Diags.Report(diag::err_drv_incompatible_omp_arch) 4276 << A->getValue(i) << T.str(); 4277 else 4278 Opts.OMPTargetTriples.push_back(TT); 4279 } 4280 } 4281 4282 // Get OpenMP host file path if any and report if a non existent file is 4283 // found 4284 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 4285 Opts.OMPHostIRFile = A->getValue(); 4286 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 4287 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 4288 << Opts.OMPHostIRFile; 4289 } 4290 4291 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 4292 Opts.OpenMPCUDAMode = Opts.OpenMPIsTargetDevice && 4293 (T.isNVPTX() || T.isAMDGCN()) && 4294 Args.hasArg(options::OPT_fopenmp_cuda_mode); 4295 4296 // OpenACC Configuration. 4297 if (Args.hasArg(options::OPT_fopenacc)) { 4298 Opts.OpenACC = true; 4299 4300 if (Arg *A = Args.getLastArg(options::OPT_openacc_macro_override)) 4301 Opts.OpenACCMacroOverride = A->getValue(); 4302 } 4303 4304 // FIXME: Eliminate this dependency. 4305 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 4306 OptSize = getOptimizationLevelSize(Args); 4307 Opts.Optimize = Opt != 0; 4308 Opts.OptimizeSize = OptSize != 0; 4309 4310 // This is the __NO_INLINE__ define, which just depends on things like the 4311 // optimization level and -fno-inline, not actually whether the backend has 4312 // inlining enabled. 4313 Opts.NoInlineDefine = !Opts.Optimize; 4314 if (Arg *InlineArg = Args.getLastArg( 4315 options::OPT_finline_functions, options::OPT_finline_hint_functions, 4316 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 4317 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 4318 Opts.NoInlineDefine = true; 4319 4320 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 4321 StringRef Val = A->getValue(); 4322 if (Val == "fast") 4323 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4324 else if (Val == "on") 4325 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 4326 else if (Val == "off") 4327 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 4328 else if (Val == "fast-honor-pragmas") 4329 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 4330 else 4331 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 4332 } 4333 4334 if (auto *A = 4335 Args.getLastArg(OPT_fsanitize_undefined_ignore_overflow_pattern_EQ)) { 4336 for (int i = 0, n = A->getNumValues(); i != n; ++i) { 4337 Opts.OverflowPatternExclusionMask |= 4338 llvm::StringSwitch<unsigned>(A->getValue(i)) 4339 .Case("none", LangOptionsBase::None) 4340 .Case("all", LangOptionsBase::All) 4341 .Case("add-unsigned-overflow-test", 4342 LangOptionsBase::AddUnsignedOverflowTest) 4343 .Case("add-signed-overflow-test", 4344 LangOptionsBase::AddSignedOverflowTest) 4345 .Case("negated-unsigned-const", LangOptionsBase::NegUnsignedConst) 4346 .Case("unsigned-post-decr-while", 4347 LangOptionsBase::PostDecrInWhile) 4348 .Default(0); 4349 } 4350 } 4351 4352 // Parse -fsanitize= arguments. 4353 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4354 Diags, Opts.Sanitize); 4355 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 4356 std::vector<std::string> systemIgnorelists = 4357 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 4358 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 4359 systemIgnorelists.begin(), 4360 systemIgnorelists.end()); 4361 4362 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 4363 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4364 4365 StringRef Ver = A->getValue(); 4366 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4367 unsigned Major, Minor = 0; 4368 4369 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4370 // y or y.0 (4 <= y <= current version). 4371 if (!VerParts.first.starts_with("0") && 4372 !VerParts.first.getAsInteger(10, Major) && 3 <= Major && 4373 Major <= CLANG_VERSION_MAJOR && 4374 (Major == 3 4375 ? VerParts.second.size() == 1 && 4376 !VerParts.second.getAsInteger(10, Minor) 4377 : VerParts.first.size() == Ver.size() || VerParts.second == "0")) { 4378 // Got a valid version number. 4379 if (Major == 3 && Minor <= 8) 4380 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4381 else if (Major <= 4) 4382 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4383 else if (Major <= 6) 4384 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4385 else if (Major <= 7) 4386 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4387 else if (Major <= 9) 4388 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4389 else if (Major <= 11) 4390 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4391 else if (Major <= 12) 4392 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4393 else if (Major <= 14) 4394 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 4395 else if (Major <= 15) 4396 Opts.setClangABICompat(LangOptions::ClangABI::Ver15); 4397 else if (Major <= 17) 4398 Opts.setClangABICompat(LangOptions::ClangABI::Ver17); 4399 else if (Major <= 18) 4400 Opts.setClangABICompat(LangOptions::ClangABI::Ver18); 4401 else if (Major <= 19) 4402 Opts.setClangABICompat(LangOptions::ClangABI::Ver19); 4403 } else if (Ver != "latest") { 4404 Diags.Report(diag::err_drv_invalid_value) 4405 << A->getAsString(Args) << A->getValue(); 4406 } 4407 } 4408 4409 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4410 StringRef SignScope = A->getValue(); 4411 4412 if (SignScope.equals_insensitive("none")) 4413 Opts.setSignReturnAddressScope( 4414 LangOptions::SignReturnAddressScopeKind::None); 4415 else if (SignScope.equals_insensitive("all")) 4416 Opts.setSignReturnAddressScope( 4417 LangOptions::SignReturnAddressScopeKind::All); 4418 else if (SignScope.equals_insensitive("non-leaf")) 4419 Opts.setSignReturnAddressScope( 4420 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4421 else 4422 Diags.Report(diag::err_drv_invalid_value) 4423 << A->getAsString(Args) << SignScope; 4424 4425 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4426 StringRef SignKey = A->getValue(); 4427 if (!SignScope.empty() && !SignKey.empty()) { 4428 if (SignKey == "a_key") 4429 Opts.setSignReturnAddressKey( 4430 LangOptions::SignReturnAddressKeyKind::AKey); 4431 else if (SignKey == "b_key") 4432 Opts.setSignReturnAddressKey( 4433 LangOptions::SignReturnAddressKeyKind::BKey); 4434 else 4435 Diags.Report(diag::err_drv_invalid_value) 4436 << A->getAsString(Args) << SignKey; 4437 } 4438 } 4439 } 4440 4441 // The value can be empty, which indicates the system default should be used. 4442 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4443 if (!CXXABI.empty()) { 4444 if (!TargetCXXABI::isABI(CXXABI)) { 4445 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4446 } else { 4447 auto Kind = TargetCXXABI::getKind(CXXABI); 4448 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4449 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4450 else 4451 Opts.CXXABI = Kind; 4452 } 4453 } 4454 4455 Opts.RelativeCXXABIVTables = 4456 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4457 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4458 TargetCXXABI::usesRelativeVTables(T)); 4459 4460 // RTTI is on by default. 4461 bool HasRTTI = !Args.hasArg(options::OPT_fno_rtti); 4462 Opts.OmitVTableRTTI = 4463 Args.hasFlag(options::OPT_fexperimental_omit_vtable_rtti, 4464 options::OPT_fno_experimental_omit_vtable_rtti, false); 4465 if (Opts.OmitVTableRTTI && HasRTTI) 4466 Diags.Report(diag::err_drv_using_omit_rtti_component_without_no_rtti); 4467 4468 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4469 auto Split = StringRef(A).split('='); 4470 Opts.MacroPrefixMap.insert( 4471 {std::string(Split.first), std::string(Split.second)}); 4472 } 4473 4474 Opts.UseTargetPathSeparator = 4475 !Args.getLastArg(OPT_fno_file_reproducible) && 4476 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4477 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4478 Args.getLastArg(OPT_ffile_reproducible)); 4479 4480 // Error if -mvscale-min is unbounded. 4481 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4482 unsigned VScaleMin; 4483 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4484 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4485 } 4486 4487 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4488 std::ifstream SeedFile(A->getValue(0)); 4489 4490 if (!SeedFile.is_open()) 4491 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4492 << A->getValue(0); 4493 4494 std::getline(SeedFile, Opts.RandstructSeed); 4495 } 4496 4497 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4498 Opts.RandstructSeed = A->getValue(0); 4499 4500 // Validate options for HLSL 4501 if (Opts.HLSL) { 4502 // TODO: Revisit restricting SPIR-V to logical once we've figured out how to 4503 // handle PhysicalStorageBuffer64 memory model 4504 if (T.isDXIL() || T.isSPIRVLogical()) { 4505 enum { ShaderModel, VulkanEnv, ShaderStage }; 4506 enum { OS, Environment }; 4507 4508 int ExpectedOS = T.isSPIRVLogical() ? VulkanEnv : ShaderModel; 4509 4510 if (T.getOSName().empty()) { 4511 Diags.Report(diag::err_drv_hlsl_bad_shader_required_in_target) 4512 << ExpectedOS << OS << T.str(); 4513 } else if (T.getEnvironmentName().empty()) { 4514 Diags.Report(diag::err_drv_hlsl_bad_shader_required_in_target) 4515 << ShaderStage << Environment << T.str(); 4516 } else if (!T.isShaderStageEnvironment()) { 4517 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4518 << ShaderStage << T.getEnvironmentName() << T.str(); 4519 } 4520 4521 if (T.isDXIL()) { 4522 if (!T.isShaderModelOS() || T.getOSVersion() == VersionTuple(0)) { 4523 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4524 << ShaderModel << T.getOSName() << T.str(); 4525 } 4526 // Validate that if fnative-half-type is given, that 4527 // the language standard is at least hlsl2018, and that 4528 // the target shader model is at least 6.2. 4529 if (Args.getLastArg(OPT_fnative_half_type)) { 4530 const LangStandard &Std = 4531 LangStandard::getLangStandardForKind(Opts.LangStd); 4532 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018 && 4533 T.getOSVersion() >= VersionTuple(6, 2))) 4534 Diags.Report(diag::err_drv_hlsl_16bit_types_unsupported) 4535 << "-enable-16bit-types" << true << Std.getName() 4536 << T.getOSVersion().getAsString(); 4537 } 4538 } else if (T.isSPIRVLogical()) { 4539 if (!T.isVulkanOS() || T.getVulkanVersion() == VersionTuple(0)) { 4540 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4541 << VulkanEnv << T.getOSName() << T.str(); 4542 } 4543 if (Args.getLastArg(OPT_fnative_half_type)) { 4544 const LangStandard &Std = 4545 LangStandard::getLangStandardForKind(Opts.LangStd); 4546 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018)) 4547 Diags.Report(diag::err_drv_hlsl_16bit_types_unsupported) 4548 << "-fnative-half-type" << false << Std.getName(); 4549 } 4550 } else { 4551 llvm_unreachable("expected DXIL or SPIR-V target"); 4552 } 4553 } else 4554 Diags.Report(diag::err_drv_hlsl_unsupported_target) << T.str(); 4555 4556 if (Opts.LangStd < LangStandard::lang_hlsl202x) { 4557 const LangStandard &Requested = 4558 LangStandard::getLangStandardForKind(Opts.LangStd); 4559 const LangStandard &Recommended = 4560 LangStandard::getLangStandardForKind(LangStandard::lang_hlsl202x); 4561 Diags.Report(diag::warn_hlsl_langstd_minimal) 4562 << Requested.getName() << Recommended.getName(); 4563 } 4564 } 4565 4566 return Diags.getNumErrors() == NumErrorsBefore; 4567 } 4568 4569 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4570 switch (Action) { 4571 case frontend::ASTDeclList: 4572 case frontend::ASTDump: 4573 case frontend::ASTPrint: 4574 case frontend::ASTView: 4575 case frontend::EmitAssembly: 4576 case frontend::EmitBC: 4577 case frontend::EmitCIR: 4578 case frontend::EmitHTML: 4579 case frontend::EmitLLVM: 4580 case frontend::EmitLLVMOnly: 4581 case frontend::EmitCodeGenOnly: 4582 case frontend::EmitObj: 4583 case frontend::ExtractAPI: 4584 case frontend::FixIt: 4585 case frontend::GenerateModule: 4586 case frontend::GenerateModuleInterface: 4587 case frontend::GenerateReducedModuleInterface: 4588 case frontend::GenerateHeaderUnit: 4589 case frontend::GeneratePCH: 4590 case frontend::GenerateInterfaceStubs: 4591 case frontend::ParseSyntaxOnly: 4592 case frontend::ModuleFileInfo: 4593 case frontend::VerifyPCH: 4594 case frontend::PluginAction: 4595 case frontend::RewriteObjC: 4596 case frontend::RewriteTest: 4597 case frontend::RunAnalysis: 4598 case frontend::TemplightDump: 4599 case frontend::MigrateSource: 4600 return false; 4601 4602 case frontend::DumpCompilerOptions: 4603 case frontend::DumpRawTokens: 4604 case frontend::DumpTokens: 4605 case frontend::InitOnly: 4606 case frontend::PrintPreamble: 4607 case frontend::PrintPreprocessedInput: 4608 case frontend::RewriteMacros: 4609 case frontend::RunPreprocessorOnly: 4610 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4611 return true; 4612 } 4613 llvm_unreachable("invalid frontend action"); 4614 } 4615 4616 static void GeneratePreprocessorArgs(const PreprocessorOptions &Opts, 4617 ArgumentConsumer Consumer, 4618 const LangOptions &LangOpts, 4619 const FrontendOptions &FrontendOpts, 4620 const CodeGenOptions &CodeGenOpts) { 4621 const PreprocessorOptions *PreprocessorOpts = &Opts; 4622 4623 #define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \ 4624 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4625 #include "clang/Driver/Options.inc" 4626 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4627 4628 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4629 GenerateArg(Consumer, OPT_pch_through_hdrstop_use); 4630 4631 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4632 GenerateArg(Consumer, OPT_error_on_deserialized_pch_decl, D); 4633 4634 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4635 GenerateArg(Consumer, OPT_preamble_bytes_EQ, 4636 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4637 (Opts.PrecompiledPreambleBytes.second ? "1" : "0")); 4638 4639 for (const auto &M : Opts.Macros) { 4640 // Don't generate __CET__ macro definitions. They are implied by the 4641 // -fcf-protection option that is generated elsewhere. 4642 if (M.first == "__CET__=1" && !M.second && 4643 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4644 continue; 4645 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4646 !CodeGenOpts.CFProtectionBranch) 4647 continue; 4648 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4649 CodeGenOpts.CFProtectionBranch) 4650 continue; 4651 4652 GenerateArg(Consumer, M.second ? OPT_U : OPT_D, M.first); 4653 } 4654 4655 for (const auto &I : Opts.Includes) { 4656 // Don't generate OpenCL includes. They are implied by other flags that are 4657 // generated elsewhere. 4658 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4659 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4660 I == "opencl-c.h")) 4661 continue; 4662 // Don't generate HLSL includes. They are implied by other flags that are 4663 // generated elsewhere. 4664 if (LangOpts.HLSL && I == "hlsl.h") 4665 continue; 4666 4667 GenerateArg(Consumer, OPT_include, I); 4668 } 4669 4670 for (const auto &CI : Opts.ChainedIncludes) 4671 GenerateArg(Consumer, OPT_chain_include, CI); 4672 4673 for (const auto &RF : Opts.RemappedFiles) 4674 GenerateArg(Consumer, OPT_remap_file, RF.first + ";" + RF.second); 4675 4676 if (Opts.SourceDateEpoch) 4677 GenerateArg(Consumer, OPT_source_date_epoch, Twine(*Opts.SourceDateEpoch)); 4678 4679 if (Opts.DefineTargetOSMacros) 4680 GenerateArg(Consumer, OPT_fdefine_target_os_macros); 4681 4682 for (const auto &EmbedEntry : Opts.EmbedEntries) 4683 GenerateArg(Consumer, OPT_embed_dir_EQ, EmbedEntry); 4684 4685 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4686 // generated elsewhere. 4687 } 4688 4689 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4690 DiagnosticsEngine &Diags, 4691 frontend::ActionKind Action, 4692 const FrontendOptions &FrontendOpts) { 4693 unsigned NumErrorsBefore = Diags.getNumErrors(); 4694 4695 PreprocessorOptions *PreprocessorOpts = &Opts; 4696 4697 #define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \ 4698 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4699 #include "clang/Driver/Options.inc" 4700 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4701 4702 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4703 Args.hasArg(OPT_pch_through_hdrstop_use); 4704 4705 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4706 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4707 4708 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4709 StringRef Value(A->getValue()); 4710 size_t Comma = Value.find(','); 4711 unsigned Bytes = 0; 4712 unsigned EndOfLine = 0; 4713 4714 if (Comma == StringRef::npos || 4715 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4716 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4717 Diags.Report(diag::err_drv_preamble_format); 4718 else { 4719 Opts.PrecompiledPreambleBytes.first = Bytes; 4720 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4721 } 4722 } 4723 4724 // Add the __CET__ macro if a CFProtection option is set. 4725 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4726 StringRef Name = A->getValue(); 4727 if (Name == "branch") 4728 Opts.addMacroDef("__CET__=1"); 4729 else if (Name == "return") 4730 Opts.addMacroDef("__CET__=2"); 4731 else if (Name == "full") 4732 Opts.addMacroDef("__CET__=3"); 4733 } 4734 4735 // Add macros from the command line. 4736 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4737 if (A->getOption().matches(OPT_D)) 4738 Opts.addMacroDef(A->getValue()); 4739 else 4740 Opts.addMacroUndef(A->getValue()); 4741 } 4742 4743 // Add the ordered list of -includes. 4744 for (const auto *A : Args.filtered(OPT_include)) 4745 Opts.Includes.emplace_back(A->getValue()); 4746 4747 for (const auto *A : Args.filtered(OPT_chain_include)) 4748 Opts.ChainedIncludes.emplace_back(A->getValue()); 4749 4750 for (const auto *A : Args.filtered(OPT_remap_file)) { 4751 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4752 4753 if (Split.second.empty()) { 4754 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4755 continue; 4756 } 4757 4758 Opts.addRemappedFile(Split.first, Split.second); 4759 } 4760 4761 if (const Arg *A = Args.getLastArg(OPT_source_date_epoch)) { 4762 StringRef Epoch = A->getValue(); 4763 // SOURCE_DATE_EPOCH, if specified, must be a non-negative decimal integer. 4764 // On time64 systems, pick 253402300799 (the UNIX timestamp of 4765 // 9999-12-31T23:59:59Z) as the upper bound. 4766 const uint64_t MaxTimestamp = 4767 std::min<uint64_t>(std::numeric_limits<time_t>::max(), 253402300799); 4768 uint64_t V; 4769 if (Epoch.getAsInteger(10, V) || V > MaxTimestamp) { 4770 Diags.Report(diag::err_fe_invalid_source_date_epoch) 4771 << Epoch << MaxTimestamp; 4772 } else { 4773 Opts.SourceDateEpoch = V; 4774 } 4775 } 4776 4777 for (const auto *A : Args.filtered(OPT_embed_dir_EQ)) { 4778 StringRef Val = A->getValue(); 4779 Opts.EmbedEntries.push_back(std::string(Val)); 4780 } 4781 4782 // Always avoid lexing editor placeholders when we're just running the 4783 // preprocessor as we never want to emit the 4784 // "editor placeholder in source file" error in PP only mode. 4785 if (isStrictlyPreprocessorAction(Action)) 4786 Opts.LexEditorPlaceholders = false; 4787 4788 Opts.DefineTargetOSMacros = 4789 Args.hasFlag(OPT_fdefine_target_os_macros, 4790 OPT_fno_define_target_os_macros, Opts.DefineTargetOSMacros); 4791 4792 return Diags.getNumErrors() == NumErrorsBefore; 4793 } 4794 4795 static void 4796 GeneratePreprocessorOutputArgs(const PreprocessorOutputOptions &Opts, 4797 ArgumentConsumer Consumer, 4798 frontend::ActionKind Action) { 4799 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4800 4801 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 4802 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4803 #include "clang/Driver/Options.inc" 4804 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4805 4806 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4807 if (Generate_dM) 4808 GenerateArg(Consumer, OPT_dM); 4809 if (!Generate_dM && Opts.ShowMacros) 4810 GenerateArg(Consumer, OPT_dD); 4811 if (Opts.DirectivesOnly) 4812 GenerateArg(Consumer, OPT_fdirectives_only); 4813 } 4814 4815 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4816 ArgList &Args, DiagnosticsEngine &Diags, 4817 frontend::ActionKind Action) { 4818 unsigned NumErrorsBefore = Diags.getNumErrors(); 4819 4820 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4821 4822 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 4823 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4824 #include "clang/Driver/Options.inc" 4825 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4826 4827 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4828 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4829 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4830 4831 return Diags.getNumErrors() == NumErrorsBefore; 4832 } 4833 4834 static void GenerateTargetArgs(const TargetOptions &Opts, 4835 ArgumentConsumer Consumer) { 4836 const TargetOptions *TargetOpts = &Opts; 4837 #define TARGET_OPTION_WITH_MARSHALLING(...) \ 4838 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4839 #include "clang/Driver/Options.inc" 4840 #undef TARGET_OPTION_WITH_MARSHALLING 4841 4842 if (!Opts.SDKVersion.empty()) 4843 GenerateArg(Consumer, OPT_target_sdk_version_EQ, 4844 Opts.SDKVersion.getAsString()); 4845 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4846 GenerateArg(Consumer, OPT_darwin_target_variant_sdk_version_EQ, 4847 Opts.DarwinTargetVariantSDKVersion.getAsString()); 4848 } 4849 4850 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4851 DiagnosticsEngine &Diags) { 4852 unsigned NumErrorsBefore = Diags.getNumErrors(); 4853 4854 TargetOptions *TargetOpts = &Opts; 4855 4856 #define TARGET_OPTION_WITH_MARSHALLING(...) \ 4857 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4858 #include "clang/Driver/Options.inc" 4859 #undef TARGET_OPTION_WITH_MARSHALLING 4860 4861 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4862 llvm::VersionTuple Version; 4863 if (Version.tryParse(A->getValue())) 4864 Diags.Report(diag::err_drv_invalid_value) 4865 << A->getAsString(Args) << A->getValue(); 4866 else 4867 Opts.SDKVersion = Version; 4868 } 4869 if (Arg *A = 4870 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4871 llvm::VersionTuple Version; 4872 if (Version.tryParse(A->getValue())) 4873 Diags.Report(diag::err_drv_invalid_value) 4874 << A->getAsString(Args) << A->getValue(); 4875 else 4876 Opts.DarwinTargetVariantSDKVersion = Version; 4877 } 4878 4879 return Diags.getNumErrors() == NumErrorsBefore; 4880 } 4881 4882 bool CompilerInvocation::CreateFromArgsImpl( 4883 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4884 DiagnosticsEngine &Diags, const char *Argv0) { 4885 unsigned NumErrorsBefore = Diags.getNumErrors(); 4886 4887 // Parse the arguments. 4888 const OptTable &Opts = getDriverOptTable(); 4889 llvm::opt::Visibility VisibilityMask(options::CC1Option); 4890 unsigned MissingArgIndex, MissingArgCount; 4891 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4892 MissingArgCount, VisibilityMask); 4893 LangOptions &LangOpts = Res.getLangOpts(); 4894 4895 // Check for missing argument error. 4896 if (MissingArgCount) 4897 Diags.Report(diag::err_drv_missing_argument) 4898 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4899 4900 // Issue errors on unknown arguments. 4901 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4902 auto ArgString = A->getAsString(Args); 4903 std::string Nearest; 4904 if (Opts.findNearest(ArgString, Nearest, VisibilityMask) > 1) 4905 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4906 else 4907 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4908 << ArgString << Nearest; 4909 } 4910 4911 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4912 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4913 ParseAnalyzerArgs(Res.getAnalyzerOpts(), Args, Diags); 4914 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4915 /*DefaultDiagColor=*/false); 4916 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4917 // FIXME: We shouldn't have to pass the DashX option around here 4918 InputKind DashX = Res.getFrontendOpts().DashX; 4919 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4920 llvm::Triple T(Res.getTargetOpts().Triple); 4921 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4922 Res.getFileSystemOpts().WorkingDir); 4923 ParseAPINotesArgs(Res.getAPINotesOpts(), Args, Diags); 4924 4925 ParsePointerAuthArgs(LangOpts, Args, Diags); 4926 4927 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4928 Diags); 4929 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4930 LangOpts.ObjCExceptions = 1; 4931 4932 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4933 if (Warning == "misexpect" && 4934 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4935 Res.getCodeGenOpts().MisExpect = true; 4936 } 4937 } 4938 4939 if (LangOpts.CUDA) { 4940 // During CUDA device-side compilation, the aux triple is the 4941 // triple used for host compilation. 4942 if (LangOpts.CUDAIsDevice) 4943 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4944 } 4945 4946 // Set the triple of the host for OpenMP device compile. 4947 if (LangOpts.OpenMPIsTargetDevice) 4948 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4949 4950 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4951 Res.getFrontendOpts().OutputFile, LangOpts); 4952 4953 // FIXME: Override value name discarding when asan or msan is used because the 4954 // backend passes depend on the name of the alloca in order to print out 4955 // names. 4956 Res.getCodeGenOpts().DiscardValueNames &= 4957 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4958 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4959 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4960 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4961 4962 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4963 Res.getFrontendOpts().ProgramAction, 4964 Res.getFrontendOpts()); 4965 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4966 Res.getFrontendOpts().ProgramAction); 4967 4968 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4969 Res.getFrontendOpts().ProgramAction, 4970 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4971 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4972 Res.getDependencyOutputOpts().Targets.empty()) 4973 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4974 4975 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4976 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4977 !Res.getLangOpts().Sanitize.empty()) { 4978 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4979 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4980 } 4981 4982 // Store the command-line for using in the CodeView backend. 4983 if (Res.getCodeGenOpts().CodeViewCommandLine) { 4984 Res.getCodeGenOpts().Argv0 = Argv0; 4985 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4986 } 4987 4988 // Set PGOOptions. Need to create a temporary VFS to read the profile 4989 // to determine the PGO type. 4990 if (!Res.getCodeGenOpts().ProfileInstrumentUsePath.empty()) { 4991 auto FS = 4992 createVFSFromOverlayFiles(Res.getHeaderSearchOpts().VFSOverlayFiles, 4993 Diags, llvm::vfs::getRealFileSystem()); 4994 setPGOUseInstrumentor(Res.getCodeGenOpts(), 4995 Res.getCodeGenOpts().ProfileInstrumentUsePath, *FS, 4996 Diags); 4997 } 4998 4999 FixupInvocation(Res, Diags, Args, DashX); 5000 5001 return Diags.getNumErrors() == NumErrorsBefore; 5002 } 5003 5004 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 5005 ArrayRef<const char *> CommandLineArgs, 5006 DiagnosticsEngine &Diags, 5007 const char *Argv0) { 5008 CompilerInvocation DummyInvocation; 5009 5010 return RoundTrip( 5011 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 5012 DiagnosticsEngine &Diags, const char *Argv0) { 5013 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 5014 }, 5015 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 5016 StringAllocator SA) { 5017 Args.push_back("-cc1"); 5018 Invocation.generateCC1CommandLine(Args, SA); 5019 }, 5020 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 5021 } 5022 5023 std::string CompilerInvocation::getModuleHash() const { 5024 // FIXME: Consider using SHA1 instead of MD5. 5025 llvm::HashBuilder<llvm::MD5, llvm::endianness::native> HBuilder; 5026 5027 // Note: For QoI reasons, the things we use as a hash here should all be 5028 // dumped via the -module-info flag. 5029 5030 // Start the signature with the compiler version. 5031 HBuilder.add(getClangFullRepositoryVersion()); 5032 5033 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 5034 // and getClangFullRepositoryVersion() doesn't include git revision. 5035 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 5036 5037 // Extend the signature with the language options 5038 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 5039 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 5040 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 5041 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 5042 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 5043 #include "clang/Basic/LangOptions.def" 5044 5045 HBuilder.addRange(getLangOpts().ModuleFeatures); 5046 5047 HBuilder.add(getLangOpts().ObjCRuntime); 5048 HBuilder.addRange(getLangOpts().CommentOpts.BlockCommandNames); 5049 5050 // Extend the signature with the target options. 5051 HBuilder.add(getTargetOpts().Triple, getTargetOpts().CPU, 5052 getTargetOpts().TuneCPU, getTargetOpts().ABI); 5053 HBuilder.addRange(getTargetOpts().FeaturesAsWritten); 5054 5055 // Extend the signature with preprocessor options. 5056 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 5057 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 5058 5059 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 5060 for (const auto &Macro : getPreprocessorOpts().Macros) { 5061 // If we're supposed to ignore this macro for the purposes of modules, 5062 // don't put it into the hash. 5063 if (!hsOpts.ModulesIgnoreMacros.empty()) { 5064 // Check whether we're ignoring this macro. 5065 StringRef MacroDef = Macro.first; 5066 if (hsOpts.ModulesIgnoreMacros.count( 5067 llvm::CachedHashString(MacroDef.split('=').first))) 5068 continue; 5069 } 5070 5071 HBuilder.add(Macro); 5072 } 5073 5074 // Extend the signature with the sysroot and other header search options. 5075 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 5076 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 5077 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 5078 hsOpts.ModulesValidateDiagnosticOptions); 5079 HBuilder.add(hsOpts.ResourceDir); 5080 5081 if (hsOpts.ModulesStrictContextHash) { 5082 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 5083 HBuilder.addRange(hsOpts.UserEntries); 5084 HBuilder.addRange(hsOpts.VFSOverlayFiles); 5085 5086 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 5087 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 5088 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 5089 HBuilder.add(diagOpts.get##Name()); 5090 #include "clang/Basic/DiagnosticOptions.def" 5091 #undef DIAGOPT 5092 #undef ENUM_DIAGOPT 5093 } 5094 5095 // Extend the signature with the user build path. 5096 HBuilder.add(hsOpts.ModuleUserBuildPath); 5097 5098 // Extend the signature with the module file extensions. 5099 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 5100 ext->hashExtension(HBuilder); 5101 5102 // Extend the signature with the Swift version for API notes. 5103 const APINotesOptions &APINotesOpts = getAPINotesOpts(); 5104 if (!APINotesOpts.SwiftVersion.empty()) { 5105 HBuilder.add(APINotesOpts.SwiftVersion.getMajor()); 5106 if (auto Minor = APINotesOpts.SwiftVersion.getMinor()) 5107 HBuilder.add(*Minor); 5108 if (auto Subminor = APINotesOpts.SwiftVersion.getSubminor()) 5109 HBuilder.add(*Subminor); 5110 if (auto Build = APINotesOpts.SwiftVersion.getBuild()) 5111 HBuilder.add(*Build); 5112 } 5113 5114 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 5115 // affects the debug info in the PCM. 5116 if (getCodeGenOpts().DebugTypeExtRefs) 5117 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 5118 5119 // Extend the signature with the affecting debug options. 5120 if (getHeaderSearchOpts().ModuleFormat == "obj") { 5121 #define DEBUGOPT(Name, Bits, Default) HBuilder.add(CodeGenOpts->Name); 5122 #define VALUE_DEBUGOPT(Name, Bits, Default) HBuilder.add(CodeGenOpts->Name); 5123 #define ENUM_DEBUGOPT(Name, Type, Bits, Default) \ 5124 HBuilder.add(static_cast<unsigned>(CodeGenOpts->get##Name())); 5125 #define BENIGN_DEBUGOPT(Name, Bits, Default) 5126 #define BENIGN_VALUE_DEBUGOPT(Name, Bits, Default) 5127 #define BENIGN_ENUM_DEBUGOPT(Name, Type, Bits, Default) 5128 #include "clang/Basic/DebugOptions.def" 5129 } 5130 5131 // Extend the signature with the enabled sanitizers, if at least one is 5132 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 5133 SanitizerSet SanHash = getLangOpts().Sanitize; 5134 SanHash.clear(getPPTransparentSanitizers()); 5135 if (!SanHash.empty()) 5136 HBuilder.add(SanHash.Mask); 5137 5138 llvm::MD5::MD5Result Result; 5139 HBuilder.getHasher().final(Result); 5140 uint64_t Hash = Result.high() ^ Result.low(); 5141 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 5142 } 5143 5144 void CompilerInvocationBase::generateCC1CommandLine( 5145 ArgumentConsumer Consumer) const { 5146 llvm::Triple T(getTargetOpts().Triple); 5147 5148 GenerateFileSystemArgs(getFileSystemOpts(), Consumer); 5149 GenerateMigratorArgs(getMigratorOpts(), Consumer); 5150 GenerateAnalyzerArgs(getAnalyzerOpts(), Consumer); 5151 GenerateDiagnosticArgs(getDiagnosticOpts(), Consumer, 5152 /*DefaultDiagColor=*/false); 5153 GenerateFrontendArgs(getFrontendOpts(), Consumer, getLangOpts().IsHeaderFile); 5154 GenerateTargetArgs(getTargetOpts(), Consumer); 5155 GenerateHeaderSearchArgs(getHeaderSearchOpts(), Consumer); 5156 GenerateAPINotesArgs(getAPINotesOpts(), Consumer); 5157 GeneratePointerAuthArgs(getLangOpts(), Consumer); 5158 GenerateLangArgs(getLangOpts(), Consumer, T, getFrontendOpts().DashX); 5159 GenerateCodeGenArgs(getCodeGenOpts(), Consumer, T, 5160 getFrontendOpts().OutputFile, &getLangOpts()); 5161 GeneratePreprocessorArgs(getPreprocessorOpts(), Consumer, getLangOpts(), 5162 getFrontendOpts(), getCodeGenOpts()); 5163 GeneratePreprocessorOutputArgs(getPreprocessorOutputOpts(), Consumer, 5164 getFrontendOpts().ProgramAction); 5165 GenerateDependencyOutputArgs(getDependencyOutputOpts(), Consumer); 5166 } 5167 5168 std::vector<std::string> CompilerInvocationBase::getCC1CommandLine() const { 5169 std::vector<std::string> Args{"-cc1"}; 5170 generateCC1CommandLine( 5171 [&Args](const Twine &Arg) { Args.push_back(Arg.str()); }); 5172 return Args; 5173 } 5174 5175 void CompilerInvocation::resetNonModularOptions() { 5176 getLangOpts().resetNonModularOptions(); 5177 getPreprocessorOpts().resetNonModularOptions(); 5178 getCodeGenOpts().resetNonModularOptions(getHeaderSearchOpts().ModuleFormat); 5179 } 5180 5181 void CompilerInvocation::clearImplicitModuleBuildOptions() { 5182 getLangOpts().ImplicitModules = false; 5183 getHeaderSearchOpts().ImplicitModuleMaps = false; 5184 getHeaderSearchOpts().ModuleCachePath.clear(); 5185 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false; 5186 getHeaderSearchOpts().BuildSessionTimestamp = 0; 5187 // The specific values we canonicalize to for pruning don't affect behaviour, 5188 /// so use the default values so they may be dropped from the command-line. 5189 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60; 5190 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60; 5191 } 5192 5193 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 5194 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 5195 DiagnosticsEngine &Diags) { 5196 return createVFSFromCompilerInvocation(CI, Diags, 5197 llvm::vfs::getRealFileSystem()); 5198 } 5199 5200 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 5201 clang::createVFSFromCompilerInvocation( 5202 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 5203 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 5204 return createVFSFromOverlayFiles(CI.getHeaderSearchOpts().VFSOverlayFiles, 5205 Diags, std::move(BaseFS)); 5206 } 5207 5208 IntrusiveRefCntPtr<llvm::vfs::FileSystem> clang::createVFSFromOverlayFiles( 5209 ArrayRef<std::string> VFSOverlayFiles, DiagnosticsEngine &Diags, 5210 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 5211 if (VFSOverlayFiles.empty()) 5212 return BaseFS; 5213 5214 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 5215 // earlier vfs files are on the bottom 5216 for (const auto &File : VFSOverlayFiles) { 5217 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 5218 Result->getBufferForFile(File); 5219 if (!Buffer) { 5220 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 5221 continue; 5222 } 5223 5224 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 5225 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 5226 /*DiagContext*/ nullptr, Result); 5227 if (!FS) { 5228 Diags.Report(diag::err_invalid_vfs_overlay) << File; 5229 continue; 5230 } 5231 5232 Result = FS; 5233 } 5234 return Result; 5235 } 5236