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 initOption(AnalyzerOptions::ConfigTable &Config, 1264 DiagnosticsEngine *Diags, 1265 PositiveAnalyzerOption &OptionField, StringRef Name, 1266 unsigned DefaultVal) { 1267 auto Parsed = PositiveAnalyzerOption::create( 1268 getStringOption(Config, Name, std::to_string(DefaultVal))); 1269 if (Parsed.has_value()) { 1270 OptionField = Parsed.value(); 1271 return; 1272 } 1273 if (Diags && !Parsed.has_value()) 1274 Diags->Report(diag::err_analyzer_config_invalid_input) 1275 << Name << "a positive"; 1276 1277 auto Default = PositiveAnalyzerOption::create(DefaultVal); 1278 assert(Default.has_value()); 1279 OptionField = Default.value(); 1280 } 1281 1282 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1283 DiagnosticsEngine *Diags) { 1284 // TODO: There's no need to store the entire configtable, it'd be plenty 1285 // enough to store checker options. 1286 1287 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1288 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1289 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...) 1290 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1291 1292 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep"); 1293 const bool InShallowMode = AnOpts.UserMode == "shallow"; 1294 1295 #define ANALYZER_OPTION(...) 1296 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1297 SHALLOW_VAL, DEEP_VAL) \ 1298 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \ 1299 InShallowMode ? SHALLOW_VAL : DEEP_VAL); 1300 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1301 1302 // At this point, AnalyzerOptions is configured. Let's validate some options. 1303 1304 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1305 // The current approach only validates the registered checkers which does not 1306 // contain the runtime enabled checkers and optimally we would validate both. 1307 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1308 std::vector<StringRef> Checkers = 1309 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1310 std::vector<StringRef> Packages = 1311 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1312 1313 SmallVector<StringRef, 16> CheckersAndPackages; 1314 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1315 1316 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1317 if (Diags) { 1318 bool IsChecker = CheckerOrPackage.contains('.'); 1319 bool IsValidName = IsChecker 1320 ? llvm::is_contained(Checkers, CheckerOrPackage) 1321 : llvm::is_contained(Packages, CheckerOrPackage); 1322 1323 if (!IsValidName) 1324 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1325 << CheckerOrPackage; 1326 } 1327 1328 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1329 } 1330 } 1331 1332 if (!Diags) 1333 return; 1334 1335 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1336 Diags->Report(diag::err_analyzer_config_invalid_input) 1337 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1338 1339 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1340 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1341 << "a filename"; 1342 1343 if (!AnOpts.ModelPath.empty() && 1344 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1345 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1346 << "a filename"; 1347 } 1348 1349 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1350 static void 1351 GenerateOptimizationRemark(ArgumentConsumer Consumer, OptSpecifier OptEQ, 1352 StringRef Name, 1353 const CodeGenOptions::OptRemark &Remark) { 1354 if (Remark.hasValidPattern()) { 1355 GenerateArg(Consumer, OptEQ, Remark.Pattern); 1356 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1357 GenerateArg(Consumer, OPT_R_Joined, Name); 1358 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1359 GenerateArg(Consumer, OPT_R_Joined, StringRef("no-") + Name); 1360 } 1361 } 1362 1363 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1364 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1365 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1366 static CodeGenOptions::OptRemark 1367 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1368 OptSpecifier OptEQ, StringRef Name) { 1369 CodeGenOptions::OptRemark Result; 1370 1371 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1372 StringRef Pattern) { 1373 Result.Pattern = Pattern.str(); 1374 1375 std::string RegexError; 1376 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1377 if (!Result.Regex->isValid(RegexError)) { 1378 Diags.Report(diag::err_drv_optimization_remark_pattern) 1379 << RegexError << A->getAsString(Args); 1380 return false; 1381 } 1382 1383 return true; 1384 }; 1385 1386 for (Arg *A : Args) { 1387 if (A->getOption().matches(OPT_R_Joined)) { 1388 StringRef Value = A->getValue(); 1389 1390 if (Value == Name) 1391 Result.Kind = CodeGenOptions::RK_Enabled; 1392 else if (Value == "everything") 1393 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1394 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1395 Result.Kind = CodeGenOptions::RK_Disabled; 1396 else if (Value == "no-everything") 1397 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1398 else 1399 continue; 1400 1401 if (Result.Kind == CodeGenOptions::RK_Disabled || 1402 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1403 Result.Pattern = ""; 1404 Result.Regex = nullptr; 1405 } else { 1406 InitializeResultPattern(A, ".*"); 1407 } 1408 } else if (A->getOption().matches(OptEQ)) { 1409 Result.Kind = CodeGenOptions::RK_WithPattern; 1410 if (!InitializeResultPattern(A, A->getValue())) 1411 return CodeGenOptions::OptRemark(); 1412 } 1413 } 1414 1415 return Result; 1416 } 1417 1418 static bool parseDiagnosticLevelMask(StringRef FlagName, 1419 const std::vector<std::string> &Levels, 1420 DiagnosticsEngine &Diags, 1421 DiagnosticLevelMask &M) { 1422 bool Success = true; 1423 for (const auto &Level : Levels) { 1424 DiagnosticLevelMask const PM = 1425 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1426 .Case("note", DiagnosticLevelMask::Note) 1427 .Case("remark", DiagnosticLevelMask::Remark) 1428 .Case("warning", DiagnosticLevelMask::Warning) 1429 .Case("error", DiagnosticLevelMask::Error) 1430 .Default(DiagnosticLevelMask::None); 1431 if (PM == DiagnosticLevelMask::None) { 1432 Success = false; 1433 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1434 } 1435 M = M | PM; 1436 } 1437 return Success; 1438 } 1439 1440 static void parseSanitizerKinds(StringRef FlagName, 1441 const std::vector<std::string> &Sanitizers, 1442 DiagnosticsEngine &Diags, SanitizerSet &S) { 1443 for (const auto &Sanitizer : Sanitizers) { 1444 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1445 if (K == SanitizerMask()) 1446 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1447 else 1448 S.set(K, true); 1449 } 1450 } 1451 1452 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1453 SmallVector<StringRef, 4> Values; 1454 serializeSanitizerSet(S, Values); 1455 return Values; 1456 } 1457 1458 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1459 ArgList &Args, DiagnosticsEngine &D, 1460 XRayInstrSet &S) { 1461 llvm::SmallVector<StringRef, 2> BundleParts; 1462 llvm::SplitString(Bundle, BundleParts, ","); 1463 for (const auto &B : BundleParts) { 1464 auto Mask = parseXRayInstrValue(B); 1465 if (Mask == XRayInstrKind::None) 1466 if (B != "none") 1467 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1468 else 1469 S.Mask = Mask; 1470 else if (Mask == XRayInstrKind::All) 1471 S.Mask = Mask; 1472 else 1473 S.set(Mask, true); 1474 } 1475 } 1476 1477 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1478 llvm::SmallVector<StringRef, 2> BundleParts; 1479 serializeXRayInstrValue(S, BundleParts); 1480 std::string Buffer; 1481 llvm::raw_string_ostream OS(Buffer); 1482 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1483 return Buffer; 1484 } 1485 1486 // Set the profile kind using fprofile-instrument-use-path. 1487 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1488 const Twine &ProfileName, 1489 llvm::vfs::FileSystem &FS, 1490 DiagnosticsEngine &Diags) { 1491 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName, FS); 1492 if (auto E = ReaderOrErr.takeError()) { 1493 unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, 1494 "Error in reading profile %0: %1"); 1495 llvm::handleAllErrors(std::move(E), [&](const llvm::ErrorInfoBase &EI) { 1496 Diags.Report(DiagID) << ProfileName.str() << EI.message(); 1497 }); 1498 return; 1499 } 1500 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1501 std::move(ReaderOrErr.get()); 1502 // Currently memprof profiles are only added at the IR level. Mark the profile 1503 // type as IR in that case as well and the subsequent matching needs to detect 1504 // which is available (might be one or both). 1505 if (PGOReader->isIRLevelProfile() || PGOReader->hasMemoryProfile()) { 1506 if (PGOReader->hasCSIRLevelProfile()) 1507 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1508 else 1509 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1510 } else 1511 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1512 } 1513 1514 void CompilerInvocation::setDefaultPointerAuthOptions( 1515 PointerAuthOptions &Opts, const LangOptions &LangOpts, 1516 const llvm::Triple &Triple) { 1517 assert(Triple.getArch() == llvm::Triple::aarch64); 1518 if (LangOpts.PointerAuthCalls) { 1519 using Key = PointerAuthSchema::ARM8_3Key; 1520 using Discrimination = PointerAuthSchema::Discrimination; 1521 // If you change anything here, be sure to update <ptrauth.h>. 1522 Opts.FunctionPointers = PointerAuthSchema( 1523 Key::ASIA, false, 1524 LangOpts.PointerAuthFunctionTypeDiscrimination ? Discrimination::Type 1525 : Discrimination::None); 1526 1527 Opts.CXXVTablePointers = PointerAuthSchema( 1528 Key::ASDA, LangOpts.PointerAuthVTPtrAddressDiscrimination, 1529 LangOpts.PointerAuthVTPtrTypeDiscrimination ? Discrimination::Type 1530 : Discrimination::None); 1531 1532 if (LangOpts.PointerAuthTypeInfoVTPtrDiscrimination) 1533 Opts.CXXTypeInfoVTablePointer = 1534 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant, 1535 StdTypeInfoVTablePointerConstantDiscrimination); 1536 else 1537 Opts.CXXTypeInfoVTablePointer = 1538 PointerAuthSchema(Key::ASDA, false, Discrimination::None); 1539 1540 Opts.CXXVTTVTablePointers = 1541 PointerAuthSchema(Key::ASDA, false, Discrimination::None); 1542 Opts.CXXVirtualFunctionPointers = Opts.CXXVirtualVariadicFunctionPointers = 1543 PointerAuthSchema(Key::ASIA, true, Discrimination::Decl); 1544 Opts.CXXMemberFunctionPointers = 1545 PointerAuthSchema(Key::ASIA, false, Discrimination::Type); 1546 1547 if (LangOpts.PointerAuthInitFini) { 1548 Opts.InitFiniPointers = PointerAuthSchema( 1549 Key::ASIA, LangOpts.PointerAuthInitFiniAddressDiscrimination, 1550 Discrimination::Constant, InitFiniPointerConstantDiscriminator); 1551 } 1552 } 1553 Opts.ReturnAddresses = LangOpts.PointerAuthReturns; 1554 Opts.AuthTraps = LangOpts.PointerAuthAuthTraps; 1555 Opts.IndirectGotos = LangOpts.PointerAuthIndirectGotos; 1556 Opts.AArch64JumpTableHardening = LangOpts.AArch64JumpTableHardening; 1557 } 1558 1559 static void parsePointerAuthOptions(PointerAuthOptions &Opts, 1560 const LangOptions &LangOpts, 1561 const llvm::Triple &Triple, 1562 DiagnosticsEngine &Diags) { 1563 if (!LangOpts.PointerAuthCalls && !LangOpts.PointerAuthReturns && 1564 !LangOpts.PointerAuthAuthTraps && !LangOpts.PointerAuthIndirectGotos && 1565 !LangOpts.AArch64JumpTableHardening) 1566 return; 1567 1568 CompilerInvocation::setDefaultPointerAuthOptions(Opts, LangOpts, Triple); 1569 } 1570 1571 void CompilerInvocationBase::GenerateCodeGenArgs(const CodeGenOptions &Opts, 1572 ArgumentConsumer Consumer, 1573 const llvm::Triple &T, 1574 const std::string &OutputFile, 1575 const LangOptions *LangOpts) { 1576 const CodeGenOptions &CodeGenOpts = Opts; 1577 1578 if (Opts.OptimizationLevel == 0) 1579 GenerateArg(Consumer, OPT_O0); 1580 else 1581 GenerateArg(Consumer, OPT_O, Twine(Opts.OptimizationLevel)); 1582 1583 #define CODEGEN_OPTION_WITH_MARSHALLING(...) \ 1584 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 1585 #include "clang/Driver/Options.inc" 1586 #undef CODEGEN_OPTION_WITH_MARSHALLING 1587 1588 if (Opts.OptimizationLevel > 0) { 1589 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1590 GenerateArg(Consumer, OPT_finline_functions); 1591 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1592 GenerateArg(Consumer, OPT_finline_hint_functions); 1593 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1594 GenerateArg(Consumer, OPT_fno_inline); 1595 } 1596 1597 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1598 GenerateArg(Consumer, OPT_fdirect_access_external_data); 1599 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1600 GenerateArg(Consumer, OPT_fno_direct_access_external_data); 1601 1602 std::optional<StringRef> DebugInfoVal; 1603 switch (Opts.DebugInfo) { 1604 case llvm::codegenoptions::DebugLineTablesOnly: 1605 DebugInfoVal = "line-tables-only"; 1606 break; 1607 case llvm::codegenoptions::DebugDirectivesOnly: 1608 DebugInfoVal = "line-directives-only"; 1609 break; 1610 case llvm::codegenoptions::DebugInfoConstructor: 1611 DebugInfoVal = "constructor"; 1612 break; 1613 case llvm::codegenoptions::LimitedDebugInfo: 1614 DebugInfoVal = "limited"; 1615 break; 1616 case llvm::codegenoptions::FullDebugInfo: 1617 DebugInfoVal = "standalone"; 1618 break; 1619 case llvm::codegenoptions::UnusedTypeInfo: 1620 DebugInfoVal = "unused-types"; 1621 break; 1622 case llvm::codegenoptions::NoDebugInfo: // default value 1623 DebugInfoVal = std::nullopt; 1624 break; 1625 case llvm::codegenoptions::LocTrackingOnly: // implied value 1626 DebugInfoVal = std::nullopt; 1627 break; 1628 } 1629 if (DebugInfoVal) 1630 GenerateArg(Consumer, OPT_debug_info_kind_EQ, *DebugInfoVal); 1631 1632 for (const auto &Prefix : Opts.DebugPrefixMap) 1633 GenerateArg(Consumer, OPT_fdebug_prefix_map_EQ, 1634 Prefix.first + "=" + Prefix.second); 1635 1636 for (const auto &Prefix : Opts.CoveragePrefixMap) 1637 GenerateArg(Consumer, OPT_fcoverage_prefix_map_EQ, 1638 Prefix.first + "=" + Prefix.second); 1639 1640 if (Opts.NewStructPathTBAA) 1641 GenerateArg(Consumer, OPT_new_struct_path_tbaa); 1642 1643 if (Opts.OptimizeSize == 1) 1644 GenerateArg(Consumer, OPT_O, "s"); 1645 else if (Opts.OptimizeSize == 2) 1646 GenerateArg(Consumer, OPT_O, "z"); 1647 1648 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1649 // -ffreestanding. We'll consider that when generating them. 1650 1651 // NoBuiltinFuncs are generated by LangOptions. 1652 1653 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1654 GenerateArg(Consumer, OPT_funroll_loops); 1655 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1656 GenerateArg(Consumer, OPT_fno_unroll_loops); 1657 1658 if (!Opts.BinutilsVersion.empty()) 1659 GenerateArg(Consumer, OPT_fbinutils_version_EQ, Opts.BinutilsVersion); 1660 1661 if (Opts.DebugNameTable == 1662 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1663 GenerateArg(Consumer, OPT_ggnu_pubnames); 1664 else if (Opts.DebugNameTable == 1665 static_cast<unsigned>( 1666 llvm::DICompileUnit::DebugNameTableKind::Default)) 1667 GenerateArg(Consumer, OPT_gpubnames); 1668 1669 if (Opts.DebugTemplateAlias) 1670 GenerateArg(Consumer, OPT_gtemplate_alias); 1671 1672 auto TNK = Opts.getDebugSimpleTemplateNames(); 1673 if (TNK != llvm::codegenoptions::DebugTemplateNamesKind::Full) { 1674 if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Simple) 1675 GenerateArg(Consumer, OPT_gsimple_template_names_EQ, "simple"); 1676 else if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Mangled) 1677 GenerateArg(Consumer, OPT_gsimple_template_names_EQ, "mangled"); 1678 } 1679 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1680 // it or PGOUseInstrumentor. 1681 1682 if (Opts.TimePasses) { 1683 if (Opts.TimePassesPerRun) 1684 GenerateArg(Consumer, OPT_ftime_report_EQ, "per-pass-run"); 1685 else 1686 GenerateArg(Consumer, OPT_ftime_report); 1687 } 1688 1689 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1690 GenerateArg(Consumer, OPT_flto_EQ, "full"); 1691 1692 if (Opts.PrepareForThinLTO) 1693 GenerateArg(Consumer, OPT_flto_EQ, "thin"); 1694 1695 if (!Opts.ThinLTOIndexFile.empty()) 1696 GenerateArg(Consumer, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile); 1697 1698 if (Opts.SaveTempsFilePrefix == OutputFile) 1699 GenerateArg(Consumer, OPT_save_temps_EQ, "obj"); 1700 1701 StringRef MemProfileBasename("memprof.profraw"); 1702 if (!Opts.MemoryProfileOutput.empty()) { 1703 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1704 GenerateArg(Consumer, OPT_fmemory_profile); 1705 } else { 1706 size_t ArgLength = 1707 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1708 GenerateArg(Consumer, OPT_fmemory_profile_EQ, 1709 Opts.MemoryProfileOutput.substr(0, ArgLength)); 1710 } 1711 } 1712 1713 if (memcmp(Opts.CoverageVersion, "0000", 4)) 1714 GenerateArg(Consumer, OPT_coverage_version_EQ, 1715 StringRef(Opts.CoverageVersion, 4)); 1716 1717 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1718 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1719 // won't be generated.) 1720 1721 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1722 std::string InstrBundle = 1723 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1724 if (!InstrBundle.empty()) 1725 GenerateArg(Consumer, OPT_fxray_instrumentation_bundle, InstrBundle); 1726 } 1727 1728 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1729 GenerateArg(Consumer, OPT_fcf_protection_EQ, "full"); 1730 else if (Opts.CFProtectionReturn) 1731 GenerateArg(Consumer, OPT_fcf_protection_EQ, "return"); 1732 else if (Opts.CFProtectionBranch) 1733 GenerateArg(Consumer, OPT_fcf_protection_EQ, "branch"); 1734 1735 if (Opts.CFProtectionBranch) { 1736 switch (Opts.getCFBranchLabelScheme()) { 1737 case CFBranchLabelSchemeKind::Default: 1738 break; 1739 #define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \ 1740 case CFBranchLabelSchemeKind::Kind: \ 1741 GenerateArg(Consumer, OPT_mcf_branch_label_scheme_EQ, #FlagVal); \ 1742 break; 1743 #include "clang/Basic/CFProtectionOptions.def" 1744 } 1745 } 1746 1747 if (Opts.FunctionReturnThunks) 1748 GenerateArg(Consumer, OPT_mfunction_return_EQ, "thunk-extern"); 1749 1750 for (const auto &F : Opts.LinkBitcodeFiles) { 1751 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1752 F.PropagateAttrs && F.Internalize; 1753 GenerateArg(Consumer, 1754 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1755 F.Filename); 1756 } 1757 1758 if (Opts.EmulatedTLS) 1759 GenerateArg(Consumer, OPT_femulated_tls); 1760 1761 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1762 GenerateArg(Consumer, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str()); 1763 1764 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1765 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1766 GenerateArg(Consumer, OPT_fdenormal_fp_math_f32_EQ, 1767 Opts.FP32DenormalMode.str()); 1768 1769 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1770 OptSpecifier Opt = 1771 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1772 GenerateArg(Consumer, Opt); 1773 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1774 OptSpecifier Opt = 1775 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1776 GenerateArg(Consumer, Opt); 1777 } 1778 1779 if (Opts.EnableAIXExtendedAltivecABI) 1780 GenerateArg(Consumer, OPT_mabi_EQ_vec_extabi); 1781 1782 if (Opts.XCOFFReadOnlyPointers) 1783 GenerateArg(Consumer, OPT_mxcoff_roptr); 1784 1785 if (!Opts.OptRecordPasses.empty()) 1786 GenerateArg(Consumer, OPT_opt_record_passes, Opts.OptRecordPasses); 1787 1788 if (!Opts.OptRecordFormat.empty()) 1789 GenerateArg(Consumer, OPT_opt_record_format, Opts.OptRecordFormat); 1790 1791 GenerateOptimizationRemark(Consumer, OPT_Rpass_EQ, "pass", 1792 Opts.OptimizationRemark); 1793 1794 GenerateOptimizationRemark(Consumer, OPT_Rpass_missed_EQ, "pass-missed", 1795 Opts.OptimizationRemarkMissed); 1796 1797 GenerateOptimizationRemark(Consumer, OPT_Rpass_analysis_EQ, "pass-analysis", 1798 Opts.OptimizationRemarkAnalysis); 1799 1800 GenerateArg(Consumer, OPT_fdiagnostics_hotness_threshold_EQ, 1801 Opts.DiagnosticsHotnessThreshold 1802 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1803 : "auto"); 1804 1805 GenerateArg(Consumer, OPT_fdiagnostics_misexpect_tolerance_EQ, 1806 Twine(*Opts.DiagnosticsMisExpectTolerance)); 1807 1808 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1809 GenerateArg(Consumer, OPT_fsanitize_recover_EQ, Sanitizer); 1810 1811 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1812 GenerateArg(Consumer, OPT_fsanitize_trap_EQ, Sanitizer); 1813 1814 for (StringRef Sanitizer : 1815 serializeSanitizerKinds(Opts.SanitizeMergeHandlers)) 1816 GenerateArg(Consumer, OPT_fsanitize_merge_handlers_EQ, Sanitizer); 1817 1818 if (!Opts.EmitVersionIdentMetadata) 1819 GenerateArg(Consumer, OPT_Qn); 1820 1821 switch (Opts.FiniteLoops) { 1822 case CodeGenOptions::FiniteLoopsKind::Language: 1823 break; 1824 case CodeGenOptions::FiniteLoopsKind::Always: 1825 GenerateArg(Consumer, OPT_ffinite_loops); 1826 break; 1827 case CodeGenOptions::FiniteLoopsKind::Never: 1828 GenerateArg(Consumer, OPT_fno_finite_loops); 1829 break; 1830 } 1831 } 1832 1833 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1834 InputKind IK, 1835 DiagnosticsEngine &Diags, 1836 const llvm::Triple &T, 1837 const std::string &OutputFile, 1838 const LangOptions &LangOptsRef) { 1839 unsigned NumErrorsBefore = Diags.getNumErrors(); 1840 1841 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1842 // TODO: This could be done in Driver 1843 unsigned MaxOptLevel = 3; 1844 if (OptimizationLevel > MaxOptLevel) { 1845 // If the optimization level is not supported, fall back on the default 1846 // optimization 1847 Diags.Report(diag::warn_drv_optimization_value) 1848 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1849 OptimizationLevel = MaxOptLevel; 1850 } 1851 Opts.OptimizationLevel = OptimizationLevel; 1852 1853 // The key paths of codegen options defined in Options.td start with 1854 // "CodeGenOpts.". Let's provide the expected variable name and type. 1855 CodeGenOptions &CodeGenOpts = Opts; 1856 // Some codegen options depend on language options. Let's provide the expected 1857 // variable name and type. 1858 const LangOptions *LangOpts = &LangOptsRef; 1859 1860 #define CODEGEN_OPTION_WITH_MARSHALLING(...) \ 1861 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 1862 #include "clang/Driver/Options.inc" 1863 #undef CODEGEN_OPTION_WITH_MARSHALLING 1864 1865 // At O0 we want to fully disable inlining outside of cases marked with 1866 // 'alwaysinline' that are required for correctness. 1867 if (Opts.OptimizationLevel == 0) { 1868 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1869 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1870 options::OPT_finline_hint_functions, 1871 options::OPT_fno_inline_functions, 1872 options::OPT_fno_inline)) { 1873 // Explicit inlining flags can disable some or all inlining even at 1874 // optimization levels above zero. 1875 if (A->getOption().matches(options::OPT_finline_functions)) 1876 Opts.setInlining(CodeGenOptions::NormalInlining); 1877 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1878 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1879 else 1880 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1881 } else { 1882 Opts.setInlining(CodeGenOptions::NormalInlining); 1883 } 1884 1885 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1886 // -fdirect-access-external-data. 1887 Opts.DirectAccessExternalData = 1888 Args.hasArg(OPT_fdirect_access_external_data) || 1889 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1890 LangOpts->PICLevel == 0); 1891 1892 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1893 unsigned Val = 1894 llvm::StringSwitch<unsigned>(A->getValue()) 1895 .Case("line-tables-only", llvm::codegenoptions::DebugLineTablesOnly) 1896 .Case("line-directives-only", 1897 llvm::codegenoptions::DebugDirectivesOnly) 1898 .Case("constructor", llvm::codegenoptions::DebugInfoConstructor) 1899 .Case("limited", llvm::codegenoptions::LimitedDebugInfo) 1900 .Case("standalone", llvm::codegenoptions::FullDebugInfo) 1901 .Case("unused-types", llvm::codegenoptions::UnusedTypeInfo) 1902 .Default(~0U); 1903 if (Val == ~0U) 1904 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1905 << A->getValue(); 1906 else 1907 Opts.setDebugInfo(static_cast<llvm::codegenoptions::DebugInfoKind>(Val)); 1908 } 1909 1910 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1911 // constructor homing, and vice versa for -fno-use-ctor-homing. 1912 if (const Arg *A = 1913 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1914 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1915 Opts.getDebugInfo() == llvm::codegenoptions::LimitedDebugInfo) 1916 Opts.setDebugInfo(llvm::codegenoptions::DebugInfoConstructor); 1917 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1918 Opts.getDebugInfo() == llvm::codegenoptions::DebugInfoConstructor) 1919 Opts.setDebugInfo(llvm::codegenoptions::LimitedDebugInfo); 1920 } 1921 1922 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1923 auto Split = StringRef(Arg).split('='); 1924 Opts.DebugPrefixMap.emplace_back(Split.first, Split.second); 1925 } 1926 1927 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1928 auto Split = StringRef(Arg).split('='); 1929 Opts.CoveragePrefixMap.emplace_back(Split.first, Split.second); 1930 } 1931 1932 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1933 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1934 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1935 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1936 1937 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1938 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1939 Opts.EmitCallSiteInfo = true; 1940 1941 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1942 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1943 << Opts.DIBugsReportFilePath; 1944 Opts.DIBugsReportFilePath = ""; 1945 } 1946 1947 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1948 Args.hasArg(OPT_new_struct_path_tbaa); 1949 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1950 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1951 if (Opts.SimplifyLibCalls) 1952 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1953 Opts.UnrollLoops = 1954 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1955 (Opts.OptimizationLevel > 1)); 1956 Opts.BinutilsVersion = 1957 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1958 1959 Opts.DebugTemplateAlias = Args.hasArg(OPT_gtemplate_alias); 1960 1961 Opts.DebugNameTable = static_cast<unsigned>( 1962 Args.hasArg(OPT_ggnu_pubnames) 1963 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1964 : Args.hasArg(OPT_gpubnames) 1965 ? llvm::DICompileUnit::DebugNameTableKind::Default 1966 : llvm::DICompileUnit::DebugNameTableKind::None); 1967 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1968 StringRef Value = A->getValue(); 1969 if (Value != "simple" && Value != "mangled") 1970 Diags.Report(diag::err_drv_unsupported_option_argument) 1971 << A->getSpelling() << A->getValue(); 1972 Opts.setDebugSimpleTemplateNames( 1973 StringRef(A->getValue()) == "simple" 1974 ? llvm::codegenoptions::DebugTemplateNamesKind::Simple 1975 : llvm::codegenoptions::DebugTemplateNamesKind::Mangled); 1976 } 1977 1978 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1979 Opts.TimePasses = true; 1980 1981 // -ftime-report= is only for new pass manager. 1982 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1983 StringRef Val = A->getValue(); 1984 if (Val == "per-pass") 1985 Opts.TimePassesPerRun = false; 1986 else if (Val == "per-pass-run") 1987 Opts.TimePassesPerRun = true; 1988 else 1989 Diags.Report(diag::err_drv_invalid_value) 1990 << A->getAsString(Args) << A->getValue(); 1991 } 1992 } 1993 1994 Opts.PrepareForLTO = false; 1995 Opts.PrepareForThinLTO = false; 1996 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1997 Opts.PrepareForLTO = true; 1998 StringRef S = A->getValue(); 1999 if (S == "thin") 2000 Opts.PrepareForThinLTO = true; 2001 else if (S != "full") 2002 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 2003 if (Args.hasArg(OPT_funified_lto)) 2004 Opts.PrepareForThinLTO = true; 2005 } 2006 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 2007 if (IK.getLanguage() != Language::LLVM_IR) 2008 Diags.Report(diag::err_drv_argument_only_allowed_with) 2009 << A->getAsString(Args) << "-x ir"; 2010 Opts.ThinLTOIndexFile = 2011 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 2012 } 2013 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 2014 Opts.SaveTempsFilePrefix = 2015 llvm::StringSwitch<std::string>(A->getValue()) 2016 .Case("obj", OutputFile) 2017 .Default(llvm::sys::path::filename(OutputFile).str()); 2018 2019 // The memory profile runtime appends the pid to make this name more unique. 2020 const char *MemProfileBasename = "memprof.profraw"; 2021 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 2022 SmallString<128> Path( 2023 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 2024 llvm::sys::path::append(Path, MemProfileBasename); 2025 Opts.MemoryProfileOutput = std::string(Path); 2026 } else if (Args.hasArg(OPT_fmemory_profile)) 2027 Opts.MemoryProfileOutput = MemProfileBasename; 2028 2029 if (Opts.CoverageNotesFile.size() || Opts.CoverageDataFile.size()) { 2030 if (Args.hasArg(OPT_coverage_version_EQ)) { 2031 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 2032 if (CoverageVersion.size() != 4) { 2033 Diags.Report(diag::err_drv_invalid_value) 2034 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 2035 << CoverageVersion; 2036 } else { 2037 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 2038 } 2039 } 2040 } 2041 // FIXME: For backend options that are not yet recorded as function 2042 // attributes in the IR, keep track of them so we can embed them in a 2043 // separate data section and use them when building the bitcode. 2044 for (const auto &A : Args) { 2045 // Do not encode output and input. 2046 if (A->getOption().getID() == options::OPT_o || 2047 A->getOption().getID() == options::OPT_INPUT || 2048 A->getOption().getID() == options::OPT_x || 2049 A->getOption().getID() == options::OPT_fembed_bitcode || 2050 A->getOption().matches(options::OPT_W_Group)) 2051 continue; 2052 ArgStringList ASL; 2053 A->render(Args, ASL); 2054 for (const auto &arg : ASL) { 2055 StringRef ArgStr(arg); 2056 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 2057 // using \00 to separate each commandline options. 2058 Opts.CmdArgs.push_back('\0'); 2059 } 2060 } 2061 2062 auto XRayInstrBundles = 2063 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 2064 if (XRayInstrBundles.empty()) 2065 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 2066 else 2067 for (const auto &A : XRayInstrBundles) 2068 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 2069 Diags, Opts.XRayInstrumentationBundle); 2070 2071 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2072 StringRef Name = A->getValue(); 2073 if (Name == "full") { 2074 Opts.CFProtectionReturn = 1; 2075 Opts.CFProtectionBranch = 1; 2076 } else if (Name == "return") 2077 Opts.CFProtectionReturn = 1; 2078 else if (Name == "branch") 2079 Opts.CFProtectionBranch = 1; 2080 else if (Name != "none") 2081 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2082 } 2083 2084 if (Opts.CFProtectionBranch && T.isRISCV()) { 2085 if (const Arg *A = Args.getLastArg(OPT_mcf_branch_label_scheme_EQ)) { 2086 const auto Scheme = 2087 llvm::StringSwitch<CFBranchLabelSchemeKind>(A->getValue()) 2088 #define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \ 2089 .Case(#FlagVal, CFBranchLabelSchemeKind::Kind) 2090 #include "clang/Basic/CFProtectionOptions.def" 2091 .Default(CFBranchLabelSchemeKind::Default); 2092 if (Scheme != CFBranchLabelSchemeKind::Default) 2093 Opts.setCFBranchLabelScheme(Scheme); 2094 else 2095 Diags.Report(diag::err_drv_invalid_value) 2096 << A->getAsString(Args) << A->getValue(); 2097 } 2098 } 2099 2100 if (const Arg *A = Args.getLastArg(OPT_mfunction_return_EQ)) { 2101 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue()) 2102 .Case("keep", llvm::FunctionReturnThunksKind::Keep) 2103 .Case("thunk-extern", llvm::FunctionReturnThunksKind::Extern) 2104 .Default(llvm::FunctionReturnThunksKind::Invalid); 2105 // SystemZ might want to add support for "expolines." 2106 if (!T.isX86()) 2107 Diags.Report(diag::err_drv_argument_not_allowed_with) 2108 << A->getSpelling() << T.getTriple(); 2109 else if (Val == llvm::FunctionReturnThunksKind::Invalid) 2110 Diags.Report(diag::err_drv_invalid_value) 2111 << A->getAsString(Args) << A->getValue(); 2112 else if (Val == llvm::FunctionReturnThunksKind::Extern && 2113 Args.getLastArgValue(OPT_mcmodel_EQ) == "large") 2114 Diags.Report(diag::err_drv_argument_not_allowed_with) 2115 << A->getAsString(Args) 2116 << Args.getLastArg(OPT_mcmodel_EQ)->getAsString(Args); 2117 else 2118 Opts.FunctionReturnThunks = static_cast<unsigned>(Val); 2119 } 2120 2121 for (auto *A : 2122 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 2123 CodeGenOptions::BitcodeFileToLink F; 2124 F.Filename = A->getValue(); 2125 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 2126 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 2127 // When linking CUDA bitcode, propagate function attributes so that 2128 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 2129 F.PropagateAttrs = true; 2130 F.Internalize = true; 2131 } 2132 Opts.LinkBitcodeFiles.push_back(F); 2133 } 2134 2135 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 2136 StringRef Val = A->getValue(); 2137 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 2138 Opts.FP32DenormalMode = Opts.FPDenormalMode; 2139 if (!Opts.FPDenormalMode.isValid()) 2140 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2141 } 2142 2143 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 2144 StringRef Val = A->getValue(); 2145 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 2146 if (!Opts.FP32DenormalMode.isValid()) 2147 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2148 } 2149 2150 // X86_32 has -fppc-struct-return and -freg-struct-return. 2151 // PPC32 has -maix-struct-return and -msvr4-struct-return. 2152 if (Arg *A = 2153 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 2154 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 2155 // TODO: We might want to consider enabling these options on AIX in the 2156 // future. 2157 if (T.isOSAIX()) 2158 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2159 << A->getSpelling() << T.str(); 2160 2161 const Option &O = A->getOption(); 2162 if (O.matches(OPT_fpcc_struct_return) || 2163 O.matches(OPT_maix_struct_return)) { 2164 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 2165 } else { 2166 assert(O.matches(OPT_freg_struct_return) || 2167 O.matches(OPT_msvr4_struct_return)); 2168 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 2169 } 2170 } 2171 2172 if (Arg *A = Args.getLastArg(OPT_mxcoff_roptr)) { 2173 if (!T.isOSAIX()) 2174 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2175 << A->getSpelling() << T.str(); 2176 2177 // Since the storage mapping class is specified per csect, 2178 // without using data sections, it is less effective to use read-only 2179 // pointers. Using read-only pointers may cause other RO variables in the 2180 // same csect to become RW when the linker acts upon `-bforceimprw`; 2181 // therefore, we require that separate data sections 2182 // are used when `-mxcoff-roptr` is in effect. We respect the setting of 2183 // data-sections since we have not found reasons to do otherwise that 2184 // overcome the user surprise of not respecting the setting. 2185 if (!Args.hasFlag(OPT_fdata_sections, OPT_fno_data_sections, false)) 2186 Diags.Report(diag::err_roptr_requires_data_sections); 2187 2188 Opts.XCOFFReadOnlyPointers = true; 2189 } 2190 2191 if (Arg *A = Args.getLastArg(OPT_mabi_EQ_quadword_atomics)) { 2192 if (!T.isOSAIX() || T.isPPC32()) 2193 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2194 << A->getSpelling() << T.str(); 2195 } 2196 2197 bool NeedLocTracking = false; 2198 2199 if (!Opts.OptRecordFile.empty()) 2200 NeedLocTracking = true; 2201 2202 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 2203 Opts.OptRecordPasses = A->getValue(); 2204 NeedLocTracking = true; 2205 } 2206 2207 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 2208 Opts.OptRecordFormat = A->getValue(); 2209 NeedLocTracking = true; 2210 } 2211 2212 Opts.OptimizationRemark = 2213 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 2214 2215 Opts.OptimizationRemarkMissed = 2216 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 2217 2218 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 2219 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 2220 2221 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 2222 Opts.OptimizationRemarkMissed.hasValidPattern() || 2223 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 2224 2225 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 2226 bool UsingProfile = 2227 UsingSampleProfile || !Opts.ProfileInstrumentUsePath.empty(); 2228 2229 if (Opts.DiagnosticsWithHotness && !UsingProfile && 2230 // An IR file will contain PGO as metadata 2231 IK.getLanguage() != Language::LLVM_IR) 2232 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 2233 << "-fdiagnostics-show-hotness"; 2234 2235 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 2236 if (auto *arg = 2237 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 2238 auto ResultOrErr = 2239 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 2240 2241 if (!ResultOrErr) { 2242 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 2243 << "-fdiagnostics-hotness-threshold="; 2244 } else { 2245 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 2246 if ((!Opts.DiagnosticsHotnessThreshold || 2247 *Opts.DiagnosticsHotnessThreshold > 0) && 2248 !UsingProfile) 2249 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 2250 << "-fdiagnostics-hotness-threshold="; 2251 } 2252 } 2253 2254 if (auto *arg = 2255 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 2256 auto ResultOrErr = parseToleranceOption(arg->getValue()); 2257 2258 if (!ResultOrErr) { 2259 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 2260 << "-fdiagnostics-misexpect-tolerance="; 2261 } else { 2262 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 2263 if ((!Opts.DiagnosticsMisExpectTolerance || 2264 *Opts.DiagnosticsMisExpectTolerance > 0) && 2265 !UsingProfile) 2266 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 2267 << "-fdiagnostics-misexpect-tolerance="; 2268 } 2269 } 2270 2271 // If the user requested to use a sample profile for PGO, then the 2272 // backend will need to track source location information so the profile 2273 // can be incorporated into the IR. 2274 if (UsingSampleProfile) 2275 NeedLocTracking = true; 2276 2277 if (!Opts.StackUsageOutput.empty()) 2278 NeedLocTracking = true; 2279 2280 // If the user requested a flag that requires source locations available in 2281 // the backend, make sure that the backend tracks source location information. 2282 if (NeedLocTracking && 2283 Opts.getDebugInfo() == llvm::codegenoptions::NoDebugInfo) 2284 Opts.setDebugInfo(llvm::codegenoptions::LocTrackingOnly); 2285 2286 // Parse -fsanitize-recover= arguments. 2287 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2288 parseSanitizerKinds("-fsanitize-recover=", 2289 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2290 Opts.SanitizeRecover); 2291 parseSanitizerKinds("-fsanitize-trap=", 2292 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2293 Opts.SanitizeTrap); 2294 parseSanitizerKinds("-fsanitize-merge=", 2295 Args.getAllArgValues(OPT_fsanitize_merge_handlers_EQ), 2296 Diags, Opts.SanitizeMergeHandlers); 2297 2298 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2299 2300 if (!LangOpts->CUDAIsDevice) 2301 parsePointerAuthOptions(Opts.PointerAuth, *LangOpts, T, Diags); 2302 2303 if (Args.hasArg(options::OPT_ffinite_loops)) 2304 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2305 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2306 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2307 2308 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2309 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2310 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2311 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2312 2313 return Diags.getNumErrors() == NumErrorsBefore; 2314 } 2315 2316 static void GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2317 ArgumentConsumer Consumer) { 2318 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2319 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 2320 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2321 #include "clang/Driver/Options.inc" 2322 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2323 2324 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2325 GenerateArg(Consumer, OPT_show_includes); 2326 2327 for (const auto &Dep : Opts.ExtraDeps) { 2328 switch (Dep.second) { 2329 case EDK_SanitizeIgnorelist: 2330 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2331 continue; 2332 case EDK_ModuleFile: 2333 // Module file arguments are generated from FrontendOptions and 2334 // HeaderSearchOptions. 2335 continue; 2336 case EDK_ProfileList: 2337 // Profile list arguments are generated from LanguageOptions via the 2338 // marshalling infrastructure. 2339 continue; 2340 case EDK_DepFileEntry: 2341 GenerateArg(Consumer, OPT_fdepfile_entry, Dep.first); 2342 break; 2343 } 2344 } 2345 } 2346 2347 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2348 ArgList &Args, DiagnosticsEngine &Diags, 2349 frontend::ActionKind Action, 2350 bool ShowLineMarkers) { 2351 unsigned NumErrorsBefore = Diags.getNumErrors(); 2352 2353 DependencyOutputOptions &DependencyOutputOpts = Opts; 2354 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 2355 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2356 #include "clang/Driver/Options.inc" 2357 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2358 2359 if (Args.hasArg(OPT_show_includes)) { 2360 // Writing both /showIncludes and preprocessor output to stdout 2361 // would produce interleaved output, so use stderr for /showIncludes. 2362 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2363 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2364 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2365 else 2366 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2367 } else { 2368 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2369 } 2370 2371 // Add sanitizer ignorelists as extra dependencies. 2372 // They won't be discovered by the regular preprocessor, so 2373 // we let make / ninja to know about this implicit dependency. 2374 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2375 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2376 StringRef Val = A->getValue(); 2377 if (!Val.contains('=')) 2378 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2379 } 2380 if (Opts.IncludeSystemHeaders) { 2381 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2382 StringRef Val = A->getValue(); 2383 if (!Val.contains('=')) 2384 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2385 } 2386 } 2387 } 2388 2389 // -fprofile-list= dependencies. 2390 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2391 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2392 2393 // Propagate the extra dependencies. 2394 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2395 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2396 2397 // Only the -fmodule-file=<file> form. 2398 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2399 StringRef Val = A->getValue(); 2400 if (!Val.contains('=')) 2401 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2402 } 2403 2404 // Check for invalid combinations of header-include-format 2405 // and header-include-filtering. 2406 if ((Opts.HeaderIncludeFormat == HIFMT_Textual && 2407 Opts.HeaderIncludeFiltering != HIFIL_None) || 2408 (Opts.HeaderIncludeFormat == HIFMT_JSON && 2409 Opts.HeaderIncludeFiltering != HIFIL_Only_Direct_System)) 2410 Diags.Report(diag::err_drv_print_header_env_var_combination_cc1) 2411 << Args.getLastArg(OPT_header_include_format_EQ)->getValue() 2412 << Args.getLastArg(OPT_header_include_filtering_EQ)->getValue(); 2413 2414 return Diags.getNumErrors() == NumErrorsBefore; 2415 } 2416 2417 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2418 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2419 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2420 // Support both clang's -f[no-]color-diagnostics and gcc's 2421 // -f[no-]diagnostics-colors[=never|always|auto]. 2422 enum { 2423 Colors_On, 2424 Colors_Off, 2425 Colors_Auto 2426 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2427 for (auto *A : Args) { 2428 const Option &O = A->getOption(); 2429 if (O.matches(options::OPT_fcolor_diagnostics)) { 2430 ShowColors = Colors_On; 2431 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2432 ShowColors = Colors_Off; 2433 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2434 StringRef Value(A->getValue()); 2435 if (Value == "always") 2436 ShowColors = Colors_On; 2437 else if (Value == "never") 2438 ShowColors = Colors_Off; 2439 else if (Value == "auto") 2440 ShowColors = Colors_Auto; 2441 } 2442 } 2443 return ShowColors == Colors_On || 2444 (ShowColors == Colors_Auto && 2445 llvm::sys::Process::StandardErrHasColors()); 2446 } 2447 2448 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2449 DiagnosticsEngine &Diags) { 2450 bool Success = true; 2451 for (const auto &Prefix : VerifyPrefixes) { 2452 // Every prefix must start with a letter and contain only alphanumeric 2453 // characters, hyphens, and underscores. 2454 auto BadChar = llvm::find_if(Prefix, [](char C) { 2455 return !isAlphanumeric(C) && C != '-' && C != '_'; 2456 }); 2457 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2458 Success = false; 2459 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2460 Diags.Report(diag::note_drv_verify_prefix_spelling); 2461 } 2462 } 2463 return Success; 2464 } 2465 2466 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2467 ArgumentConsumer Consumer) { 2468 const FileSystemOptions &FileSystemOpts = Opts; 2469 2470 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \ 2471 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2472 #include "clang/Driver/Options.inc" 2473 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2474 } 2475 2476 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2477 DiagnosticsEngine &Diags) { 2478 unsigned NumErrorsBefore = Diags.getNumErrors(); 2479 2480 FileSystemOptions &FileSystemOpts = Opts; 2481 2482 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \ 2483 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2484 #include "clang/Driver/Options.inc" 2485 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2486 2487 return Diags.getNumErrors() == NumErrorsBefore; 2488 } 2489 2490 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2491 ArgumentConsumer Consumer) { 2492 const MigratorOptions &MigratorOpts = Opts; 2493 #define MIGRATOR_OPTION_WITH_MARSHALLING(...) \ 2494 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2495 #include "clang/Driver/Options.inc" 2496 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2497 } 2498 2499 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2500 DiagnosticsEngine &Diags) { 2501 unsigned NumErrorsBefore = Diags.getNumErrors(); 2502 2503 MigratorOptions &MigratorOpts = Opts; 2504 2505 #define MIGRATOR_OPTION_WITH_MARSHALLING(...) \ 2506 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2507 #include "clang/Driver/Options.inc" 2508 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2509 2510 return Diags.getNumErrors() == NumErrorsBefore; 2511 } 2512 2513 void CompilerInvocationBase::GenerateDiagnosticArgs( 2514 const DiagnosticOptions &Opts, ArgumentConsumer Consumer, 2515 bool DefaultDiagColor) { 2516 const DiagnosticOptions *DiagnosticOpts = &Opts; 2517 #define DIAG_OPTION_WITH_MARSHALLING(...) \ 2518 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2519 #include "clang/Driver/Options.inc" 2520 #undef DIAG_OPTION_WITH_MARSHALLING 2521 2522 if (!Opts.DiagnosticSerializationFile.empty()) 2523 GenerateArg(Consumer, OPT_diagnostic_serialized_file, 2524 Opts.DiagnosticSerializationFile); 2525 2526 if (Opts.ShowColors) 2527 GenerateArg(Consumer, OPT_fcolor_diagnostics); 2528 2529 if (Opts.VerifyDiagnostics && 2530 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2531 GenerateArg(Consumer, OPT_verify); 2532 2533 for (const auto &Prefix : Opts.VerifyPrefixes) 2534 if (Prefix != "expected") 2535 GenerateArg(Consumer, OPT_verify_EQ, Prefix); 2536 2537 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2538 if (VIU == DiagnosticLevelMask::None) { 2539 // This is the default, don't generate anything. 2540 } else if (VIU == DiagnosticLevelMask::All) { 2541 GenerateArg(Consumer, OPT_verify_ignore_unexpected); 2542 } else { 2543 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2544 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "note"); 2545 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2546 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "remark"); 2547 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2548 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "warning"); 2549 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2550 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "error"); 2551 } 2552 2553 for (const auto &Warning : Opts.Warnings) { 2554 // This option is automatically generated from UndefPrefixes. 2555 if (Warning == "undef-prefix") 2556 continue; 2557 // This option is automatically generated from CheckConstexprFunctionBodies. 2558 if (Warning == "invalid-constexpr" || Warning == "no-invalid-constexpr") 2559 continue; 2560 Consumer(StringRef("-W") + Warning); 2561 } 2562 2563 for (const auto &Remark : Opts.Remarks) { 2564 // These arguments are generated from OptimizationRemark fields of 2565 // CodeGenOptions. 2566 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2567 "pass-analysis", "no-pass-analysis", 2568 "pass-missed", "no-pass-missed"}; 2569 if (llvm::is_contained(IgnoredRemarks, Remark)) 2570 continue; 2571 2572 Consumer(StringRef("-R") + Remark); 2573 } 2574 2575 if (!Opts.DiagnosticSuppressionMappingsFile.empty()) { 2576 GenerateArg(Consumer, OPT_warning_suppression_mappings_EQ, 2577 Opts.DiagnosticSuppressionMappingsFile); 2578 } 2579 } 2580 2581 std::unique_ptr<DiagnosticOptions> 2582 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2583 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2584 unsigned MissingArgIndex, MissingArgCount; 2585 InputArgList Args = getDriverOptTable().ParseArgs( 2586 Argv.slice(1), MissingArgIndex, MissingArgCount); 2587 2588 bool ShowColors = true; 2589 if (std::optional<std::string> NoColor = 2590 llvm::sys::Process::GetEnv("NO_COLOR"); 2591 NoColor && !NoColor->empty()) { 2592 // If the user set the NO_COLOR environment variable, we'll honor that 2593 // unless the command line overrides it. 2594 ShowColors = false; 2595 } 2596 2597 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2598 // Any errors that would be diagnosed here will also be diagnosed later, 2599 // when the DiagnosticsEngine actually exists. 2600 (void)ParseDiagnosticArgs(*DiagOpts, Args, /*Diags=*/nullptr, ShowColors); 2601 return DiagOpts; 2602 } 2603 2604 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2605 DiagnosticsEngine *Diags, 2606 bool DefaultDiagColor) { 2607 std::optional<DiagnosticsEngine> IgnoringDiags; 2608 if (!Diags) { 2609 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2610 new IgnoringDiagConsumer()); 2611 Diags = &*IgnoringDiags; 2612 } 2613 2614 unsigned NumErrorsBefore = Diags->getNumErrors(); 2615 2616 // The key paths of diagnostic options defined in Options.td start with 2617 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2618 DiagnosticOptions *DiagnosticOpts = &Opts; 2619 2620 #define DIAG_OPTION_WITH_MARSHALLING(...) \ 2621 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, __VA_ARGS__) 2622 #include "clang/Driver/Options.inc" 2623 #undef DIAG_OPTION_WITH_MARSHALLING 2624 2625 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2626 2627 if (Arg *A = 2628 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2629 Opts.DiagnosticSerializationFile = A->getValue(); 2630 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2631 2632 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2633 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2634 if (Args.hasArg(OPT_verify)) 2635 Opts.VerifyPrefixes.push_back("expected"); 2636 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2637 // then sort it to prepare for fast lookup using std::binary_search. 2638 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2639 Opts.VerifyDiagnostics = false; 2640 else 2641 llvm::sort(Opts.VerifyPrefixes); 2642 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2643 parseDiagnosticLevelMask( 2644 "-verify-ignore-unexpected=", 2645 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2646 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2647 DiagMask = DiagnosticLevelMask::All; 2648 Opts.setVerifyIgnoreUnexpected(DiagMask); 2649 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2650 Diags->Report(diag::warn_ignoring_ftabstop_value) 2651 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2652 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2653 } 2654 2655 if (const Arg *A = Args.getLastArg(OPT_warning_suppression_mappings_EQ)) 2656 Opts.DiagnosticSuppressionMappingsFile = A->getValue(); 2657 2658 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2659 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2660 2661 return Diags->getNumErrors() == NumErrorsBefore; 2662 } 2663 2664 /// Parse the argument to the -ftest-module-file-extension 2665 /// command-line argument. 2666 /// 2667 /// \returns true on error, false on success. 2668 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2669 std::string &BlockName, 2670 unsigned &MajorVersion, 2671 unsigned &MinorVersion, 2672 bool &Hashed, 2673 std::string &UserInfo) { 2674 SmallVector<StringRef, 5> Args; 2675 Arg.split(Args, ':', 5); 2676 if (Args.size() < 5) 2677 return true; 2678 2679 BlockName = std::string(Args[0]); 2680 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2681 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2682 if (Args[3].getAsInteger(2, Hashed)) return true; 2683 if (Args.size() > 4) 2684 UserInfo = std::string(Args[4]); 2685 return false; 2686 } 2687 2688 /// Return a table that associates command line option specifiers with the 2689 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2690 /// intentionally missing, as this case is handled separately from other 2691 /// frontend options. 2692 static const auto &getFrontendActionTable() { 2693 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2694 {frontend::ASTDeclList, OPT_ast_list}, 2695 2696 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2697 {frontend::ASTDump, OPT_ast_dump_all}, 2698 {frontend::ASTDump, OPT_ast_dump_EQ}, 2699 {frontend::ASTDump, OPT_ast_dump}, 2700 {frontend::ASTDump, OPT_ast_dump_lookups}, 2701 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2702 2703 {frontend::ASTPrint, OPT_ast_print}, 2704 {frontend::ASTView, OPT_ast_view}, 2705 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2706 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2707 {frontend::DumpTokens, OPT_dump_tokens}, 2708 {frontend::EmitAssembly, OPT_S}, 2709 {frontend::EmitBC, OPT_emit_llvm_bc}, 2710 {frontend::EmitCIR, OPT_emit_cir}, 2711 {frontend::EmitHTML, OPT_emit_html}, 2712 {frontend::EmitLLVM, OPT_emit_llvm}, 2713 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2714 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2715 {frontend::EmitObj, OPT_emit_obj}, 2716 {frontend::ExtractAPI, OPT_extract_api}, 2717 2718 {frontend::FixIt, OPT_fixit_EQ}, 2719 {frontend::FixIt, OPT_fixit}, 2720 2721 {frontend::GenerateModule, OPT_emit_module}, 2722 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2723 {frontend::GenerateReducedModuleInterface, 2724 OPT_emit_reduced_module_interface}, 2725 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2726 {frontend::GeneratePCH, OPT_emit_pch}, 2727 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2728 {frontend::InitOnly, OPT_init_only}, 2729 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2730 {frontend::ModuleFileInfo, OPT_module_file_info}, 2731 {frontend::VerifyPCH, OPT_verify_pch}, 2732 {frontend::PrintPreamble, OPT_print_preamble}, 2733 {frontend::PrintPreprocessedInput, OPT_E}, 2734 {frontend::TemplightDump, OPT_templight_dump}, 2735 {frontend::RewriteMacros, OPT_rewrite_macros}, 2736 {frontend::RewriteObjC, OPT_rewrite_objc}, 2737 {frontend::RewriteTest, OPT_rewrite_test}, 2738 {frontend::RunAnalysis, OPT_analyze}, 2739 {frontend::MigrateSource, OPT_migrate}, 2740 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2741 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2742 OPT_print_dependency_directives_minimized_source}, 2743 }; 2744 2745 return Table; 2746 } 2747 2748 /// Maps command line option to frontend action. 2749 static std::optional<frontend::ActionKind> 2750 getFrontendAction(OptSpecifier &Opt) { 2751 for (const auto &ActionOpt : getFrontendActionTable()) 2752 if (ActionOpt.second == Opt.getID()) 2753 return ActionOpt.first; 2754 2755 return std::nullopt; 2756 } 2757 2758 /// Maps frontend action to command line option. 2759 static std::optional<OptSpecifier> 2760 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2761 for (const auto &ActionOpt : getFrontendActionTable()) 2762 if (ActionOpt.first == ProgramAction) 2763 return OptSpecifier(ActionOpt.second); 2764 2765 return std::nullopt; 2766 } 2767 2768 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2769 ArgumentConsumer Consumer, bool IsHeader) { 2770 const FrontendOptions &FrontendOpts = Opts; 2771 #define FRONTEND_OPTION_WITH_MARSHALLING(...) \ 2772 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2773 #include "clang/Driver/Options.inc" 2774 #undef FRONTEND_OPTION_WITH_MARSHALLING 2775 2776 std::optional<OptSpecifier> ProgramActionOpt = 2777 getProgramActionOpt(Opts.ProgramAction); 2778 2779 // Generating a simple flag covers most frontend actions. 2780 std::function<void()> GenerateProgramAction = [&]() { 2781 GenerateArg(Consumer, *ProgramActionOpt); 2782 }; 2783 2784 if (!ProgramActionOpt) { 2785 // PluginAction is the only program action handled separately. 2786 assert(Opts.ProgramAction == frontend::PluginAction && 2787 "Frontend action without option."); 2788 GenerateProgramAction = [&]() { 2789 GenerateArg(Consumer, OPT_plugin, Opts.ActionName); 2790 }; 2791 } 2792 2793 // FIXME: Simplify the complex 'AST dump' command line. 2794 if (Opts.ProgramAction == frontend::ASTDump) { 2795 GenerateProgramAction = [&]() { 2796 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2797 // marshalling infrastructure. 2798 2799 if (Opts.ASTDumpFormat != ADOF_Default) { 2800 StringRef Format; 2801 switch (Opts.ASTDumpFormat) { 2802 case ADOF_Default: 2803 llvm_unreachable("Default AST dump format."); 2804 case ADOF_JSON: 2805 Format = "json"; 2806 break; 2807 } 2808 2809 if (Opts.ASTDumpAll) 2810 GenerateArg(Consumer, OPT_ast_dump_all_EQ, Format); 2811 if (Opts.ASTDumpDecls) 2812 GenerateArg(Consumer, OPT_ast_dump_EQ, Format); 2813 } else { 2814 if (Opts.ASTDumpAll) 2815 GenerateArg(Consumer, OPT_ast_dump_all); 2816 if (Opts.ASTDumpDecls) 2817 GenerateArg(Consumer, OPT_ast_dump); 2818 } 2819 }; 2820 } 2821 2822 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2823 GenerateProgramAction = [&]() { 2824 GenerateArg(Consumer, OPT_fixit_EQ, Opts.FixItSuffix); 2825 }; 2826 } 2827 2828 GenerateProgramAction(); 2829 2830 for (const auto &PluginArgs : Opts.PluginArgs) { 2831 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2832 for (const auto &PluginArg : PluginArgs.second) 2833 denormalizeString(Consumer, 2834 Opt.getPrefix() + Opt.getName() + PluginArgs.first, 2835 Opt.getKind(), 0, PluginArg); 2836 } 2837 2838 for (const auto &Ext : Opts.ModuleFileExtensions) 2839 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2840 GenerateArg(Consumer, OPT_ftest_module_file_extension_EQ, TestExt->str()); 2841 2842 if (!Opts.CodeCompletionAt.FileName.empty()) 2843 GenerateArg(Consumer, OPT_code_completion_at, 2844 Opts.CodeCompletionAt.ToString()); 2845 2846 for (const auto &Plugin : Opts.Plugins) 2847 GenerateArg(Consumer, OPT_load, Plugin); 2848 2849 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2850 2851 for (const auto &ModuleFile : Opts.ModuleFiles) 2852 GenerateArg(Consumer, OPT_fmodule_file, ModuleFile); 2853 2854 if (Opts.AuxTargetCPU) 2855 GenerateArg(Consumer, OPT_aux_target_cpu, *Opts.AuxTargetCPU); 2856 2857 if (Opts.AuxTargetFeatures) 2858 for (const auto &Feature : *Opts.AuxTargetFeatures) 2859 GenerateArg(Consumer, OPT_aux_target_feature, Feature); 2860 2861 { 2862 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2863 StringRef ModuleMap = 2864 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2865 StringRef HeaderUnit = ""; 2866 switch (Opts.DashX.getHeaderUnitKind()) { 2867 case InputKind::HeaderUnit_None: 2868 break; 2869 case InputKind::HeaderUnit_User: 2870 HeaderUnit = "-user"; 2871 break; 2872 case InputKind::HeaderUnit_System: 2873 HeaderUnit = "-system"; 2874 break; 2875 case InputKind::HeaderUnit_Abs: 2876 HeaderUnit = "-header-unit"; 2877 break; 2878 } 2879 StringRef Header = IsHeader ? "-header" : ""; 2880 2881 StringRef Lang; 2882 switch (Opts.DashX.getLanguage()) { 2883 case Language::C: 2884 Lang = "c"; 2885 break; 2886 case Language::OpenCL: 2887 Lang = "cl"; 2888 break; 2889 case Language::OpenCLCXX: 2890 Lang = "clcpp"; 2891 break; 2892 case Language::CUDA: 2893 Lang = "cuda"; 2894 break; 2895 case Language::HIP: 2896 Lang = "hip"; 2897 break; 2898 case Language::CXX: 2899 Lang = "c++"; 2900 break; 2901 case Language::ObjC: 2902 Lang = "objective-c"; 2903 break; 2904 case Language::ObjCXX: 2905 Lang = "objective-c++"; 2906 break; 2907 case Language::Asm: 2908 Lang = "assembler-with-cpp"; 2909 break; 2910 case Language::Unknown: 2911 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2912 "Generating -x argument for unknown language (not precompiled)."); 2913 Lang = "ast"; 2914 break; 2915 case Language::LLVM_IR: 2916 Lang = "ir"; 2917 break; 2918 case Language::HLSL: 2919 Lang = "hlsl"; 2920 break; 2921 case Language::CIR: 2922 Lang = "cir"; 2923 break; 2924 } 2925 2926 GenerateArg(Consumer, OPT_x, 2927 Lang + HeaderUnit + Header + ModuleMap + Preprocessed); 2928 } 2929 2930 // OPT_INPUT has a unique class, generate it directly. 2931 for (const auto &Input : Opts.Inputs) 2932 Consumer(Input.getFile()); 2933 } 2934 2935 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2936 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2937 unsigned NumErrorsBefore = Diags.getNumErrors(); 2938 2939 FrontendOptions &FrontendOpts = Opts; 2940 2941 #define FRONTEND_OPTION_WITH_MARSHALLING(...) \ 2942 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2943 #include "clang/Driver/Options.inc" 2944 #undef FRONTEND_OPTION_WITH_MARSHALLING 2945 2946 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2947 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2948 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2949 std::optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2950 assert(ProgramAction && "Option specifier not in Action_Group."); 2951 2952 if (ProgramAction == frontend::ASTDump && 2953 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2954 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2955 .CaseLower("default", ADOF_Default) 2956 .CaseLower("json", ADOF_JSON) 2957 .Default(std::numeric_limits<unsigned>::max()); 2958 2959 if (Val != std::numeric_limits<unsigned>::max()) 2960 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2961 else { 2962 Diags.Report(diag::err_drv_invalid_value) 2963 << A->getAsString(Args) << A->getValue(); 2964 Opts.ASTDumpFormat = ADOF_Default; 2965 } 2966 } 2967 2968 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2969 Opts.FixItSuffix = A->getValue(); 2970 2971 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2972 StringRef ArgStr = 2973 Args.hasArg(OPT_interface_stub_version_EQ) 2974 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2975 : "ifs-v1"; 2976 if (ArgStr == "experimental-yaml-elf-v1" || 2977 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2978 ArgStr == "experimental-tapi-elf-v1") { 2979 std::string ErrorMessage = 2980 "Invalid interface stub format: " + ArgStr.str() + 2981 " is deprecated."; 2982 Diags.Report(diag::err_drv_invalid_value) 2983 << "Must specify a valid interface stub format type, ie: " 2984 "-interface-stub-version=ifs-v1" 2985 << ErrorMessage; 2986 ProgramAction = frontend::ParseSyntaxOnly; 2987 } else if (!ArgStr.starts_with("ifs-")) { 2988 std::string ErrorMessage = 2989 "Invalid interface stub format: " + ArgStr.str() + "."; 2990 Diags.Report(diag::err_drv_invalid_value) 2991 << "Must specify a valid interface stub format type, ie: " 2992 "-interface-stub-version=ifs-v1" 2993 << ErrorMessage; 2994 ProgramAction = frontend::ParseSyntaxOnly; 2995 } 2996 } 2997 2998 Opts.ProgramAction = *ProgramAction; 2999 3000 // Catch common mistakes when multiple actions are specified for cc1 (e.g. 3001 // -S -emit-llvm means -emit-llvm while -emit-llvm -S means -S). However, to 3002 // support driver `-c -Xclang ACTION` (-cc1 -emit-llvm file -main-file-name 3003 // X ACTION), we suppress the error when the two actions are separated by 3004 // -main-file-name. 3005 // 3006 // As an exception, accept composable -ast-dump*. 3007 if (!A->getSpelling().starts_with("-ast-dump")) { 3008 const Arg *SavedAction = nullptr; 3009 for (const Arg *AA : 3010 Args.filtered(OPT_Action_Group, OPT_main_file_name)) { 3011 if (AA->getOption().matches(OPT_main_file_name)) { 3012 SavedAction = nullptr; 3013 } else if (!SavedAction) { 3014 SavedAction = AA; 3015 } else { 3016 if (!A->getOption().matches(OPT_ast_dump_EQ)) 3017 Diags.Report(diag::err_fe_invalid_multiple_actions) 3018 << SavedAction->getSpelling() << A->getSpelling(); 3019 break; 3020 } 3021 } 3022 } 3023 } 3024 3025 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 3026 Opts.Plugins.emplace_back(A->getValue(0)); 3027 Opts.ProgramAction = frontend::PluginAction; 3028 Opts.ActionName = A->getValue(); 3029 } 3030 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 3031 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 3032 3033 for (const std::string &Arg : 3034 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 3035 std::string BlockName; 3036 unsigned MajorVersion; 3037 unsigned MinorVersion; 3038 bool Hashed; 3039 std::string UserInfo; 3040 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 3041 MinorVersion, Hashed, UserInfo)) { 3042 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 3043 3044 continue; 3045 } 3046 3047 // Add the testing module file extension. 3048 Opts.ModuleFileExtensions.push_back( 3049 std::make_shared<TestModuleFileExtension>( 3050 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 3051 } 3052 3053 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 3054 Opts.CodeCompletionAt = 3055 ParsedSourceLocation::FromString(A->getValue()); 3056 if (Opts.CodeCompletionAt.FileName.empty()) 3057 Diags.Report(diag::err_drv_invalid_value) 3058 << A->getAsString(Args) << A->getValue(); 3059 } 3060 3061 Opts.Plugins = Args.getAllArgValues(OPT_load); 3062 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 3063 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 3064 // Only the -fmodule-file=<file> form. 3065 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3066 StringRef Val = A->getValue(); 3067 if (!Val.contains('=')) 3068 Opts.ModuleFiles.push_back(std::string(Val)); 3069 } 3070 3071 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 3072 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 3073 << "-emit-module"; 3074 if (Args.hasArg(OPT_fclangir) || Args.hasArg(OPT_emit_cir)) 3075 Opts.UseClangIRPipeline = true; 3076 3077 if (Args.hasArg(OPT_aux_target_cpu)) 3078 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 3079 if (Args.hasArg(OPT_aux_target_feature)) 3080 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 3081 3082 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 3083 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 3084 Diags.Report(diag::err_drv_argument_not_allowed_with) 3085 << "ARC migration" << "ObjC migration"; 3086 } 3087 3088 InputKind DashX(Language::Unknown); 3089 if (const Arg *A = Args.getLastArg(OPT_x)) { 3090 StringRef XValue = A->getValue(); 3091 3092 // Parse suffixes: 3093 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 3094 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 3095 bool Preprocessed = XValue.consume_back("-cpp-output"); 3096 bool ModuleMap = XValue.consume_back("-module-map"); 3097 // Detect and consume the header indicator. 3098 bool IsHeader = 3099 XValue != "precompiled-header" && XValue.consume_back("-header"); 3100 3101 // If we have c++-{user,system}-header, that indicates a header unit input 3102 // likewise, if the user put -fmodule-header together with a header with an 3103 // absolute path (header-unit-header). 3104 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 3105 if (IsHeader || Preprocessed) { 3106 if (XValue.consume_back("-header-unit")) 3107 HUK = InputKind::HeaderUnit_Abs; 3108 else if (XValue.consume_back("-system")) 3109 HUK = InputKind::HeaderUnit_System; 3110 else if (XValue.consume_back("-user")) 3111 HUK = InputKind::HeaderUnit_User; 3112 } 3113 3114 // The value set by this processing is an un-preprocessed source which is 3115 // not intended to be a module map or header unit. 3116 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 3117 HUK == InputKind::HeaderUnit_None; 3118 3119 // Principal languages. 3120 DashX = llvm::StringSwitch<InputKind>(XValue) 3121 .Case("c", Language::C) 3122 .Case("cl", Language::OpenCL) 3123 .Case("clcpp", Language::OpenCLCXX) 3124 .Case("cuda", Language::CUDA) 3125 .Case("hip", Language::HIP) 3126 .Case("c++", Language::CXX) 3127 .Case("objective-c", Language::ObjC) 3128 .Case("objective-c++", Language::ObjCXX) 3129 .Case("hlsl", Language::HLSL) 3130 .Default(Language::Unknown); 3131 3132 // "objc[++]-cpp-output" is an acceptable synonym for 3133 // "objective-c[++]-cpp-output". 3134 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 3135 HUK == InputKind::HeaderUnit_None) 3136 DashX = llvm::StringSwitch<InputKind>(XValue) 3137 .Case("objc", Language::ObjC) 3138 .Case("objc++", Language::ObjCXX) 3139 .Default(Language::Unknown); 3140 3141 // Some special cases cannot be combined with suffixes. 3142 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 3143 HUK == InputKind::HeaderUnit_None) 3144 DashX = llvm::StringSwitch<InputKind>(XValue) 3145 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 3146 .Case("assembler-with-cpp", Language::Asm) 3147 .Cases("ast", "pcm", "precompiled-header", 3148 InputKind(Language::Unknown, InputKind::Precompiled)) 3149 .Case("ir", Language::LLVM_IR) 3150 .Case("cir", Language::CIR) 3151 .Default(Language::Unknown); 3152 3153 if (DashX.isUnknown()) 3154 Diags.Report(diag::err_drv_invalid_value) 3155 << A->getAsString(Args) << A->getValue(); 3156 3157 if (Preprocessed) 3158 DashX = DashX.getPreprocessed(); 3159 // A regular header is considered mutually exclusive with a header unit. 3160 if (HUK != InputKind::HeaderUnit_None) { 3161 DashX = DashX.withHeaderUnit(HUK); 3162 IsHeaderFile = true; 3163 } else if (IsHeaderFile) 3164 DashX = DashX.getHeader(); 3165 if (ModuleMap) 3166 DashX = DashX.withFormat(InputKind::ModuleMap); 3167 } 3168 3169 // '-' is the default input if none is given. 3170 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 3171 Opts.Inputs.clear(); 3172 if (Inputs.empty()) 3173 Inputs.push_back("-"); 3174 3175 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 3176 Inputs.size() > 1) 3177 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 3178 3179 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 3180 InputKind IK = DashX; 3181 if (IK.isUnknown()) { 3182 IK = FrontendOptions::getInputKindForExtension( 3183 StringRef(Inputs[i]).rsplit('.').second); 3184 // FIXME: Warn on this? 3185 if (IK.isUnknown()) 3186 IK = Language::C; 3187 // FIXME: Remove this hack. 3188 if (i == 0) 3189 DashX = IK; 3190 } 3191 3192 bool IsSystem = false; 3193 3194 // The -emit-module action implicitly takes a module map. 3195 if (Opts.ProgramAction == frontend::GenerateModule && 3196 IK.getFormat() == InputKind::Source) { 3197 IK = IK.withFormat(InputKind::ModuleMap); 3198 IsSystem = Opts.IsSystemModule; 3199 } 3200 3201 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 3202 } 3203 3204 Opts.DashX = DashX; 3205 3206 return Diags.getNumErrors() == NumErrorsBefore; 3207 } 3208 3209 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 3210 void *MainAddr) { 3211 std::string ClangExecutable = 3212 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 3213 return Driver::GetResourcesPath(ClangExecutable); 3214 } 3215 3216 static void GenerateHeaderSearchArgs(const HeaderSearchOptions &Opts, 3217 ArgumentConsumer Consumer) { 3218 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 3219 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \ 3220 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 3221 #include "clang/Driver/Options.inc" 3222 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3223 3224 if (Opts.UseLibcxx) 3225 GenerateArg(Consumer, OPT_stdlib_EQ, "libc++"); 3226 3227 if (!Opts.ModuleCachePath.empty()) 3228 GenerateArg(Consumer, OPT_fmodules_cache_path, Opts.ModuleCachePath); 3229 3230 for (const auto &File : Opts.PrebuiltModuleFiles) 3231 GenerateArg(Consumer, OPT_fmodule_file, File.first + "=" + File.second); 3232 3233 for (const auto &Path : Opts.PrebuiltModulePaths) 3234 GenerateArg(Consumer, OPT_fprebuilt_module_path, Path); 3235 3236 for (const auto &Macro : Opts.ModulesIgnoreMacros) 3237 GenerateArg(Consumer, OPT_fmodules_ignore_macro, Macro.val()); 3238 3239 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 3240 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 3241 std::optional<bool> IsFramework, 3242 std::optional<bool> IgnoreSysRoot) { 3243 return llvm::is_contained(Groups, Entry.Group) && 3244 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 3245 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 3246 }; 3247 3248 auto It = Opts.UserEntries.begin(); 3249 auto End = Opts.UserEntries.end(); 3250 3251 // Add -I... and -F... options in order. 3252 for (; It < End && Matches(*It, {frontend::Angled}, std::nullopt, true); 3253 ++It) { 3254 OptSpecifier Opt = [It, Matches]() { 3255 if (Matches(*It, frontend::Angled, true, true)) 3256 return OPT_F; 3257 if (Matches(*It, frontend::Angled, false, true)) 3258 return OPT_I; 3259 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 3260 }(); 3261 3262 GenerateArg(Consumer, Opt, It->Path); 3263 }; 3264 3265 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 3266 // have already been generated as "-I[xx]yy". If that's the case, their 3267 // position on command line was such that this has no semantic impact on 3268 // include paths. 3269 for (; It < End && 3270 Matches(*It, {frontend::After, frontend::Angled}, false, true); 3271 ++It) { 3272 OptSpecifier Opt = 3273 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 3274 GenerateArg(Consumer, Opt, It->Path); 3275 } 3276 3277 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3278 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3279 // command line was such that this has no semantic impact on include paths. 3280 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3281 GenerateArg(Consumer, OPT_idirafter, It->Path); 3282 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3283 GenerateArg(Consumer, OPT_iquote, It->Path); 3284 for (; It < End && Matches(*It, {frontend::System}, false, std::nullopt); 3285 ++It) 3286 GenerateArg(Consumer, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3287 It->Path); 3288 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3289 GenerateArg(Consumer, OPT_iframework, It->Path); 3290 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3291 GenerateArg(Consumer, OPT_iframeworkwithsysroot, It->Path); 3292 3293 // Add the paths for the various language specific isystem flags. 3294 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3295 GenerateArg(Consumer, OPT_c_isystem, It->Path); 3296 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3297 GenerateArg(Consumer, OPT_cxx_isystem, It->Path); 3298 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3299 GenerateArg(Consumer, OPT_objc_isystem, It->Path); 3300 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3301 GenerateArg(Consumer, OPT_objcxx_isystem, It->Path); 3302 3303 // Add the internal paths from a driver that detects standard include paths. 3304 // Note: Some paths that came from "-internal-isystem" arguments may have 3305 // already been generated as "-isystem". If that's the case, their position on 3306 // command line was such that this has no semantic impact on include paths. 3307 for (; It < End && 3308 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3309 ++It) { 3310 OptSpecifier Opt = It->Group == frontend::System 3311 ? OPT_internal_isystem 3312 : OPT_internal_externc_isystem; 3313 GenerateArg(Consumer, Opt, It->Path); 3314 } 3315 3316 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3317 3318 // Add the path prefixes which are implicitly treated as being system headers. 3319 for (const auto &P : Opts.SystemHeaderPrefixes) { 3320 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3321 : OPT_no_system_header_prefix; 3322 GenerateArg(Consumer, Opt, P.Prefix); 3323 } 3324 3325 for (const std::string &F : Opts.VFSOverlayFiles) 3326 GenerateArg(Consumer, OPT_ivfsoverlay, F); 3327 } 3328 3329 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3330 DiagnosticsEngine &Diags, 3331 const std::string &WorkingDir) { 3332 unsigned NumErrorsBefore = Diags.getNumErrors(); 3333 3334 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3335 3336 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \ 3337 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 3338 #include "clang/Driver/Options.inc" 3339 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3340 3341 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3342 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3343 3344 // Canonicalize -fmodules-cache-path before storing it. 3345 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3346 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3347 if (WorkingDir.empty()) 3348 llvm::sys::fs::make_absolute(P); 3349 else 3350 llvm::sys::fs::make_absolute(WorkingDir, P); 3351 } 3352 llvm::sys::path::remove_dots(P); 3353 Opts.ModuleCachePath = std::string(P); 3354 3355 // Only the -fmodule-file=<name>=<file> form. 3356 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3357 StringRef Val = A->getValue(); 3358 if (Val.contains('=')) { 3359 auto Split = Val.split('='); 3360 Opts.PrebuiltModuleFiles.insert_or_assign( 3361 std::string(Split.first), std::string(Split.second)); 3362 } 3363 } 3364 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3365 Opts.AddPrebuiltModulePath(A->getValue()); 3366 3367 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3368 StringRef MacroDef = A->getValue(); 3369 Opts.ModulesIgnoreMacros.insert( 3370 llvm::CachedHashString(MacroDef.split('=').first)); 3371 } 3372 3373 // Add -I... and -F... options in order. 3374 bool IsSysrootSpecified = 3375 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3376 3377 // Expand a leading `=` to the sysroot if one was passed (and it's not a 3378 // framework flag). 3379 auto PrefixHeaderPath = [IsSysrootSpecified, 3380 &Opts](const llvm::opt::Arg *A, 3381 bool IsFramework = false) -> std::string { 3382 assert(A->getNumValues() && "Unexpected empty search path flag!"); 3383 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3384 SmallString<32> Buffer; 3385 llvm::sys::path::append(Buffer, Opts.Sysroot, 3386 llvm::StringRef(A->getValue()).substr(1)); 3387 return std::string(Buffer); 3388 } 3389 return A->getValue(); 3390 }; 3391 3392 for (const auto *A : Args.filtered(OPT_I, OPT_F)) { 3393 bool IsFramework = A->getOption().matches(OPT_F); 3394 Opts.AddPath(PrefixHeaderPath(A, IsFramework), frontend::Angled, 3395 IsFramework, /*IgnoreSysroot=*/true); 3396 } 3397 3398 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3399 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3400 for (const auto *A : 3401 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3402 if (A->getOption().matches(OPT_iprefix)) 3403 Prefix = A->getValue(); 3404 else if (A->getOption().matches(OPT_iwithprefix)) 3405 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3406 else 3407 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3408 } 3409 3410 for (const auto *A : Args.filtered(OPT_idirafter)) 3411 Opts.AddPath(PrefixHeaderPath(A), frontend::After, false, true); 3412 for (const auto *A : Args.filtered(OPT_iquote)) 3413 Opts.AddPath(PrefixHeaderPath(A), frontend::Quoted, false, true); 3414 3415 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) { 3416 if (A->getOption().matches(OPT_iwithsysroot)) { 3417 Opts.AddPath(A->getValue(), frontend::System, false, 3418 /*IgnoreSysRoot=*/false); 3419 continue; 3420 } 3421 Opts.AddPath(PrefixHeaderPath(A), frontend::System, false, true); 3422 } 3423 for (const auto *A : Args.filtered(OPT_iframework)) 3424 Opts.AddPath(A->getValue(), frontend::System, true, true); 3425 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3426 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3427 /*IgnoreSysRoot=*/false); 3428 3429 // Add the paths for the various language specific isystem flags. 3430 for (const auto *A : Args.filtered(OPT_c_isystem)) 3431 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3432 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3433 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3434 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3435 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3436 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3437 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3438 3439 // Add the internal paths from a driver that detects standard include paths. 3440 for (const auto *A : 3441 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3442 frontend::IncludeDirGroup Group = frontend::System; 3443 if (A->getOption().matches(OPT_internal_externc_isystem)) 3444 Group = frontend::ExternCSystem; 3445 Opts.AddPath(A->getValue(), Group, false, true); 3446 } 3447 3448 // Add the path prefixes which are implicitly treated as being system headers. 3449 for (const auto *A : 3450 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3451 Opts.AddSystemHeaderPrefix( 3452 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3453 3454 for (const auto *A : Args.filtered(OPT_ivfsoverlay, OPT_vfsoverlay)) 3455 Opts.AddVFSOverlayFile(A->getValue()); 3456 3457 return Diags.getNumErrors() == NumErrorsBefore; 3458 } 3459 3460 static void GenerateAPINotesArgs(const APINotesOptions &Opts, 3461 ArgumentConsumer Consumer) { 3462 if (!Opts.SwiftVersion.empty()) 3463 GenerateArg(Consumer, OPT_fapinotes_swift_version, 3464 Opts.SwiftVersion.getAsString()); 3465 3466 for (const auto &Path : Opts.ModuleSearchPaths) 3467 GenerateArg(Consumer, OPT_iapinotes_modules, Path); 3468 } 3469 3470 static void ParseAPINotesArgs(APINotesOptions &Opts, ArgList &Args, 3471 DiagnosticsEngine &diags) { 3472 if (const Arg *A = Args.getLastArg(OPT_fapinotes_swift_version)) { 3473 if (Opts.SwiftVersion.tryParse(A->getValue())) 3474 diags.Report(diag::err_drv_invalid_value) 3475 << A->getAsString(Args) << A->getValue(); 3476 } 3477 for (const Arg *A : Args.filtered(OPT_iapinotes_modules)) 3478 Opts.ModuleSearchPaths.push_back(A->getValue()); 3479 } 3480 3481 static void GeneratePointerAuthArgs(const LangOptions &Opts, 3482 ArgumentConsumer Consumer) { 3483 if (Opts.PointerAuthIntrinsics) 3484 GenerateArg(Consumer, OPT_fptrauth_intrinsics); 3485 if (Opts.PointerAuthCalls) 3486 GenerateArg(Consumer, OPT_fptrauth_calls); 3487 if (Opts.PointerAuthReturns) 3488 GenerateArg(Consumer, OPT_fptrauth_returns); 3489 if (Opts.PointerAuthIndirectGotos) 3490 GenerateArg(Consumer, OPT_fptrauth_indirect_gotos); 3491 if (Opts.PointerAuthAuthTraps) 3492 GenerateArg(Consumer, OPT_fptrauth_auth_traps); 3493 if (Opts.PointerAuthVTPtrAddressDiscrimination) 3494 GenerateArg(Consumer, OPT_fptrauth_vtable_pointer_address_discrimination); 3495 if (Opts.PointerAuthVTPtrTypeDiscrimination) 3496 GenerateArg(Consumer, OPT_fptrauth_vtable_pointer_type_discrimination); 3497 if (Opts.PointerAuthTypeInfoVTPtrDiscrimination) 3498 GenerateArg(Consumer, OPT_fptrauth_type_info_vtable_pointer_discrimination); 3499 if (Opts.PointerAuthFunctionTypeDiscrimination) 3500 GenerateArg(Consumer, OPT_fptrauth_function_pointer_type_discrimination); 3501 if (Opts.PointerAuthInitFini) 3502 GenerateArg(Consumer, OPT_fptrauth_init_fini); 3503 if (Opts.PointerAuthInitFiniAddressDiscrimination) 3504 GenerateArg(Consumer, OPT_fptrauth_init_fini_address_discrimination); 3505 if (Opts.PointerAuthELFGOT) 3506 GenerateArg(Consumer, OPT_fptrauth_elf_got); 3507 if (Opts.AArch64JumpTableHardening) 3508 GenerateArg(Consumer, OPT_faarch64_jump_table_hardening); 3509 } 3510 3511 static void ParsePointerAuthArgs(LangOptions &Opts, ArgList &Args, 3512 DiagnosticsEngine &Diags) { 3513 Opts.PointerAuthIntrinsics = Args.hasArg(OPT_fptrauth_intrinsics); 3514 Opts.PointerAuthCalls = Args.hasArg(OPT_fptrauth_calls); 3515 Opts.PointerAuthReturns = Args.hasArg(OPT_fptrauth_returns); 3516 Opts.PointerAuthIndirectGotos = Args.hasArg(OPT_fptrauth_indirect_gotos); 3517 Opts.PointerAuthAuthTraps = Args.hasArg(OPT_fptrauth_auth_traps); 3518 Opts.PointerAuthVTPtrAddressDiscrimination = 3519 Args.hasArg(OPT_fptrauth_vtable_pointer_address_discrimination); 3520 Opts.PointerAuthVTPtrTypeDiscrimination = 3521 Args.hasArg(OPT_fptrauth_vtable_pointer_type_discrimination); 3522 Opts.PointerAuthTypeInfoVTPtrDiscrimination = 3523 Args.hasArg(OPT_fptrauth_type_info_vtable_pointer_discrimination); 3524 Opts.PointerAuthFunctionTypeDiscrimination = 3525 Args.hasArg(OPT_fptrauth_function_pointer_type_discrimination); 3526 Opts.PointerAuthInitFini = Args.hasArg(OPT_fptrauth_init_fini); 3527 Opts.PointerAuthInitFiniAddressDiscrimination = 3528 Args.hasArg(OPT_fptrauth_init_fini_address_discrimination); 3529 Opts.PointerAuthELFGOT = Args.hasArg(OPT_fptrauth_elf_got); 3530 Opts.AArch64JumpTableHardening = 3531 Args.hasArg(OPT_faarch64_jump_table_hardening); 3532 } 3533 3534 /// Check if input file kind and language standard are compatible. 3535 static bool IsInputCompatibleWithStandard(InputKind IK, 3536 const LangStandard &S) { 3537 switch (IK.getLanguage()) { 3538 case Language::Unknown: 3539 case Language::LLVM_IR: 3540 case Language::CIR: 3541 llvm_unreachable("should not parse language flags for this input"); 3542 3543 case Language::C: 3544 case Language::ObjC: 3545 return S.getLanguage() == Language::C; 3546 3547 case Language::OpenCL: 3548 return S.getLanguage() == Language::OpenCL || 3549 S.getLanguage() == Language::OpenCLCXX; 3550 3551 case Language::OpenCLCXX: 3552 return S.getLanguage() == Language::OpenCLCXX; 3553 3554 case Language::CXX: 3555 case Language::ObjCXX: 3556 return S.getLanguage() == Language::CXX; 3557 3558 case Language::CUDA: 3559 // FIXME: What -std= values should be permitted for CUDA compilations? 3560 return S.getLanguage() == Language::CUDA || 3561 S.getLanguage() == Language::CXX; 3562 3563 case Language::HIP: 3564 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3565 3566 case Language::Asm: 3567 // Accept (and ignore) all -std= values. 3568 // FIXME: The -std= value is not ignored; it affects the tokenization 3569 // and preprocessing rules if we're preprocessing this asm input. 3570 return true; 3571 3572 case Language::HLSL: 3573 return S.getLanguage() == Language::HLSL; 3574 } 3575 3576 llvm_unreachable("unexpected input language"); 3577 } 3578 3579 /// Get language name for given input kind. 3580 static StringRef GetInputKindName(InputKind IK) { 3581 switch (IK.getLanguage()) { 3582 case Language::C: 3583 return "C"; 3584 case Language::ObjC: 3585 return "Objective-C"; 3586 case Language::CXX: 3587 return "C++"; 3588 case Language::ObjCXX: 3589 return "Objective-C++"; 3590 case Language::OpenCL: 3591 return "OpenCL"; 3592 case Language::OpenCLCXX: 3593 return "C++ for OpenCL"; 3594 case Language::CUDA: 3595 return "CUDA"; 3596 case Language::HIP: 3597 return "HIP"; 3598 3599 case Language::Asm: 3600 return "Asm"; 3601 case Language::LLVM_IR: 3602 return "LLVM IR"; 3603 case Language::CIR: 3604 return "Clang IR"; 3605 3606 case Language::HLSL: 3607 return "HLSL"; 3608 3609 case Language::Unknown: 3610 break; 3611 } 3612 llvm_unreachable("unknown input language"); 3613 } 3614 3615 void CompilerInvocationBase::GenerateLangArgs(const LangOptions &Opts, 3616 ArgumentConsumer Consumer, 3617 const llvm::Triple &T, 3618 InputKind IK) { 3619 if (IK.getFormat() == InputKind::Precompiled || 3620 IK.getLanguage() == Language::LLVM_IR || 3621 IK.getLanguage() == Language::CIR) { 3622 if (Opts.ObjCAutoRefCount) 3623 GenerateArg(Consumer, OPT_fobjc_arc); 3624 if (Opts.PICLevel != 0) 3625 GenerateArg(Consumer, OPT_pic_level, Twine(Opts.PICLevel)); 3626 if (Opts.PIE) 3627 GenerateArg(Consumer, OPT_pic_is_pie); 3628 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3629 GenerateArg(Consumer, OPT_fsanitize_EQ, Sanitizer); 3630 3631 return; 3632 } 3633 3634 OptSpecifier StdOpt; 3635 switch (Opts.LangStd) { 3636 case LangStandard::lang_opencl10: 3637 case LangStandard::lang_opencl11: 3638 case LangStandard::lang_opencl12: 3639 case LangStandard::lang_opencl20: 3640 case LangStandard::lang_opencl30: 3641 case LangStandard::lang_openclcpp10: 3642 case LangStandard::lang_openclcpp2021: 3643 StdOpt = OPT_cl_std_EQ; 3644 break; 3645 default: 3646 StdOpt = OPT_std_EQ; 3647 break; 3648 } 3649 3650 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3651 GenerateArg(Consumer, StdOpt, LangStandard.getName()); 3652 3653 if (Opts.IncludeDefaultHeader) 3654 GenerateArg(Consumer, OPT_finclude_default_header); 3655 if (Opts.DeclareOpenCLBuiltins) 3656 GenerateArg(Consumer, OPT_fdeclare_opencl_builtins); 3657 3658 const LangOptions *LangOpts = &Opts; 3659 3660 #define LANG_OPTION_WITH_MARSHALLING(...) \ 3661 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 3662 #include "clang/Driver/Options.inc" 3663 #undef LANG_OPTION_WITH_MARSHALLING 3664 3665 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3666 3667 if (Opts.ObjC) { 3668 GenerateArg(Consumer, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString()); 3669 3670 if (Opts.GC == LangOptions::GCOnly) 3671 GenerateArg(Consumer, OPT_fobjc_gc_only); 3672 else if (Opts.GC == LangOptions::HybridGC) 3673 GenerateArg(Consumer, OPT_fobjc_gc); 3674 else if (Opts.ObjCAutoRefCount == 1) 3675 GenerateArg(Consumer, OPT_fobjc_arc); 3676 3677 if (Opts.ObjCWeakRuntime) 3678 GenerateArg(Consumer, OPT_fobjc_runtime_has_weak); 3679 3680 if (Opts.ObjCWeak) 3681 GenerateArg(Consumer, OPT_fobjc_weak); 3682 3683 if (Opts.ObjCSubscriptingLegacyRuntime) 3684 GenerateArg(Consumer, OPT_fobjc_subscripting_legacy_runtime); 3685 } 3686 3687 if (Opts.GNUCVersion != 0) { 3688 unsigned Major = Opts.GNUCVersion / 100 / 100; 3689 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3690 unsigned Patch = Opts.GNUCVersion % 100; 3691 GenerateArg(Consumer, OPT_fgnuc_version_EQ, 3692 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch)); 3693 } 3694 3695 if (Opts.IgnoreXCOFFVisibility) 3696 GenerateArg(Consumer, OPT_mignore_xcoff_visibility); 3697 3698 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3699 GenerateArg(Consumer, OPT_ftrapv); 3700 GenerateArg(Consumer, OPT_ftrapv_handler, Opts.OverflowHandler); 3701 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3702 GenerateArg(Consumer, OPT_fwrapv); 3703 } 3704 3705 if (Opts.MSCompatibilityVersion != 0) { 3706 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3707 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3708 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3709 GenerateArg(Consumer, OPT_fms_compatibility_version, 3710 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor)); 3711 } 3712 3713 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) || 3714 T.isOSzOS()) { 3715 if (!Opts.Trigraphs) 3716 GenerateArg(Consumer, OPT_fno_trigraphs); 3717 } else { 3718 if (Opts.Trigraphs) 3719 GenerateArg(Consumer, OPT_ftrigraphs); 3720 } 3721 3722 if (T.isOSzOS() && !Opts.ZOSExt) 3723 GenerateArg(Consumer, OPT_fno_zos_extensions); 3724 else if (Opts.ZOSExt) 3725 GenerateArg(Consumer, OPT_fzos_extensions); 3726 3727 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3728 GenerateArg(Consumer, OPT_fblocks); 3729 3730 if (Opts.ConvergentFunctions) 3731 GenerateArg(Consumer, OPT_fconvergent_functions); 3732 else 3733 GenerateArg(Consumer, OPT_fno_convergent_functions); 3734 3735 if (Opts.NoBuiltin && !Opts.Freestanding) 3736 GenerateArg(Consumer, OPT_fno_builtin); 3737 3738 if (!Opts.NoBuiltin) 3739 for (const auto &Func : Opts.NoBuiltinFuncs) 3740 GenerateArg(Consumer, OPT_fno_builtin_, Func); 3741 3742 if (Opts.LongDoubleSize == 128) 3743 GenerateArg(Consumer, OPT_mlong_double_128); 3744 else if (Opts.LongDoubleSize == 64) 3745 GenerateArg(Consumer, OPT_mlong_double_64); 3746 else if (Opts.LongDoubleSize == 80) 3747 GenerateArg(Consumer, OPT_mlong_double_80); 3748 3749 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3750 3751 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3752 // '-fopenmp-targets='. 3753 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3754 GenerateArg(Consumer, OPT_fopenmp); 3755 3756 if (Opts.OpenMP != 51) 3757 GenerateArg(Consumer, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP)); 3758 3759 if (!Opts.OpenMPUseTLS) 3760 GenerateArg(Consumer, OPT_fnoopenmp_use_tls); 3761 3762 if (Opts.OpenMPIsTargetDevice) 3763 GenerateArg(Consumer, OPT_fopenmp_is_target_device); 3764 3765 if (Opts.OpenMPIRBuilder) 3766 GenerateArg(Consumer, OPT_fopenmp_enable_irbuilder); 3767 } 3768 3769 if (Opts.OpenMPSimd) { 3770 GenerateArg(Consumer, OPT_fopenmp_simd); 3771 3772 if (Opts.OpenMP != 51) 3773 GenerateArg(Consumer, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP)); 3774 } 3775 3776 if (Opts.OpenMPThreadSubscription) 3777 GenerateArg(Consumer, OPT_fopenmp_assume_threads_oversubscription); 3778 3779 if (Opts.OpenMPTeamSubscription) 3780 GenerateArg(Consumer, OPT_fopenmp_assume_teams_oversubscription); 3781 3782 if (Opts.OpenMPTargetDebug != 0) 3783 GenerateArg(Consumer, OPT_fopenmp_target_debug_EQ, 3784 Twine(Opts.OpenMPTargetDebug)); 3785 3786 if (Opts.OpenMPCUDANumSMs != 0) 3787 GenerateArg(Consumer, OPT_fopenmp_cuda_number_of_sm_EQ, 3788 Twine(Opts.OpenMPCUDANumSMs)); 3789 3790 if (Opts.OpenMPCUDABlocksPerSM != 0) 3791 GenerateArg(Consumer, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3792 Twine(Opts.OpenMPCUDABlocksPerSM)); 3793 3794 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3795 GenerateArg(Consumer, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3796 Twine(Opts.OpenMPCUDAReductionBufNum)); 3797 3798 if (!Opts.OMPTargetTriples.empty()) { 3799 std::string Targets; 3800 llvm::raw_string_ostream OS(Targets); 3801 llvm::interleave( 3802 Opts.OMPTargetTriples, OS, 3803 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3804 GenerateArg(Consumer, OPT_fopenmp_targets_EQ, Targets); 3805 } 3806 3807 if (!Opts.OMPHostIRFile.empty()) 3808 GenerateArg(Consumer, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile); 3809 3810 if (Opts.OpenMPCUDAMode) 3811 GenerateArg(Consumer, OPT_fopenmp_cuda_mode); 3812 3813 if (Opts.OpenACC) { 3814 GenerateArg(Consumer, OPT_fopenacc); 3815 if (!Opts.OpenACCMacroOverride.empty()) 3816 GenerateArg(Consumer, OPT_openacc_macro_override, 3817 Opts.OpenACCMacroOverride); 3818 } 3819 3820 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3821 // generated from CodeGenOptions. 3822 3823 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3824 GenerateArg(Consumer, OPT_ffp_contract, "fast"); 3825 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3826 GenerateArg(Consumer, OPT_ffp_contract, "on"); 3827 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3828 GenerateArg(Consumer, OPT_ffp_contract, "off"); 3829 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3830 GenerateArg(Consumer, OPT_ffp_contract, "fast-honor-pragmas"); 3831 3832 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3833 GenerateArg(Consumer, OPT_fsanitize_EQ, Sanitizer); 3834 3835 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3836 for (const std::string &F : Opts.NoSanitizeFiles) 3837 GenerateArg(Consumer, OPT_fsanitize_ignorelist_EQ, F); 3838 3839 switch (Opts.getClangABICompat()) { 3840 case LangOptions::ClangABI::Ver3_8: 3841 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "3.8"); 3842 break; 3843 case LangOptions::ClangABI::Ver4: 3844 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "4.0"); 3845 break; 3846 case LangOptions::ClangABI::Ver6: 3847 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "6.0"); 3848 break; 3849 case LangOptions::ClangABI::Ver7: 3850 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "7.0"); 3851 break; 3852 case LangOptions::ClangABI::Ver9: 3853 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "9.0"); 3854 break; 3855 case LangOptions::ClangABI::Ver11: 3856 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "11.0"); 3857 break; 3858 case LangOptions::ClangABI::Ver12: 3859 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "12.0"); 3860 break; 3861 case LangOptions::ClangABI::Ver14: 3862 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "14.0"); 3863 break; 3864 case LangOptions::ClangABI::Ver15: 3865 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "15.0"); 3866 break; 3867 case LangOptions::ClangABI::Ver17: 3868 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "17.0"); 3869 break; 3870 case LangOptions::ClangABI::Ver18: 3871 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "18.0"); 3872 break; 3873 case LangOptions::ClangABI::Ver19: 3874 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "19.0"); 3875 break; 3876 case LangOptions::ClangABI::Latest: 3877 break; 3878 } 3879 3880 if (Opts.getSignReturnAddressScope() == 3881 LangOptions::SignReturnAddressScopeKind::All) 3882 GenerateArg(Consumer, OPT_msign_return_address_EQ, "all"); 3883 else if (Opts.getSignReturnAddressScope() == 3884 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3885 GenerateArg(Consumer, OPT_msign_return_address_EQ, "non-leaf"); 3886 3887 if (Opts.getSignReturnAddressKey() == 3888 LangOptions::SignReturnAddressKeyKind::BKey) 3889 GenerateArg(Consumer, OPT_msign_return_address_key_EQ, "b_key"); 3890 3891 if (Opts.CXXABI) 3892 GenerateArg(Consumer, OPT_fcxx_abi_EQ, 3893 TargetCXXABI::getSpelling(*Opts.CXXABI)); 3894 3895 if (Opts.RelativeCXXABIVTables) 3896 GenerateArg(Consumer, OPT_fexperimental_relative_cxx_abi_vtables); 3897 else 3898 GenerateArg(Consumer, OPT_fno_experimental_relative_cxx_abi_vtables); 3899 3900 if (Opts.UseTargetPathSeparator) 3901 GenerateArg(Consumer, OPT_ffile_reproducible); 3902 else 3903 GenerateArg(Consumer, OPT_fno_file_reproducible); 3904 3905 for (const auto &MP : Opts.MacroPrefixMap) 3906 GenerateArg(Consumer, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second); 3907 3908 if (!Opts.RandstructSeed.empty()) 3909 GenerateArg(Consumer, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed); 3910 } 3911 3912 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3913 InputKind IK, const llvm::Triple &T, 3914 std::vector<std::string> &Includes, 3915 DiagnosticsEngine &Diags) { 3916 unsigned NumErrorsBefore = Diags.getNumErrors(); 3917 3918 if (IK.getFormat() == InputKind::Precompiled || 3919 IK.getLanguage() == Language::LLVM_IR || 3920 IK.getLanguage() == Language::CIR) { 3921 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3922 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3923 // what the input type is. 3924 if (Args.hasArg(OPT_fobjc_arc)) 3925 Opts.ObjCAutoRefCount = 1; 3926 // PICLevel and PIELevel are needed during code generation and this should 3927 // be set regardless of the input type. 3928 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3929 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3930 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3931 Diags, Opts.Sanitize); 3932 3933 return Diags.getNumErrors() == NumErrorsBefore; 3934 } 3935 3936 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3937 // FIXME: Should we really be parsing this for an Language::Asm input? 3938 3939 // FIXME: Cleanup per-file based stuff. 3940 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3941 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3942 LangStd = LangStandard::getLangKind(A->getValue()); 3943 if (LangStd == LangStandard::lang_unspecified) { 3944 Diags.Report(diag::err_drv_invalid_value) 3945 << A->getAsString(Args) << A->getValue(); 3946 // Report supported standards with short description. 3947 for (unsigned KindValue = 0; 3948 KindValue != LangStandard::lang_unspecified; 3949 ++KindValue) { 3950 const LangStandard &Std = LangStandard::getLangStandardForKind( 3951 static_cast<LangStandard::Kind>(KindValue)); 3952 if (IsInputCompatibleWithStandard(IK, Std)) { 3953 auto Diag = Diags.Report(diag::note_drv_use_standard); 3954 Diag << Std.getName() << Std.getDescription(); 3955 unsigned NumAliases = 0; 3956 #define LANGSTANDARD(id, name, lang, desc, features) 3957 #define LANGSTANDARD_ALIAS(id, alias) \ 3958 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3959 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3960 #include "clang/Basic/LangStandards.def" 3961 Diag << NumAliases; 3962 #define LANGSTANDARD(id, name, lang, desc, features) 3963 #define LANGSTANDARD_ALIAS(id, alias) \ 3964 if (KindValue == LangStandard::lang_##id) Diag << alias; 3965 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3966 #include "clang/Basic/LangStandards.def" 3967 } 3968 } 3969 } else { 3970 // Valid standard, check to make sure language and standard are 3971 // compatible. 3972 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3973 if (!IsInputCompatibleWithStandard(IK, Std)) { 3974 Diags.Report(diag::err_drv_argument_not_allowed_with) 3975 << A->getAsString(Args) << GetInputKindName(IK); 3976 } 3977 } 3978 } 3979 3980 // -cl-std only applies for OpenCL language standards. 3981 // Override the -std option in this case. 3982 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3983 LangStandard::Kind OpenCLLangStd 3984 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3985 .Cases("cl", "CL", LangStandard::lang_opencl10) 3986 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3987 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3988 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3989 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3990 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3991 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3992 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3993 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3994 .Default(LangStandard::lang_unspecified); 3995 3996 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3997 Diags.Report(diag::err_drv_invalid_value) 3998 << A->getAsString(Args) << A->getValue(); 3999 } 4000 else 4001 LangStd = OpenCLLangStd; 4002 } 4003 4004 // These need to be parsed now. They are used to set OpenCL defaults. 4005 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 4006 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 4007 4008 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 4009 4010 // The key paths of codegen options defined in Options.td start with 4011 // "LangOpts->". Let's provide the expected variable name and type. 4012 LangOptions *LangOpts = &Opts; 4013 4014 #define LANG_OPTION_WITH_MARSHALLING(...) \ 4015 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4016 #include "clang/Driver/Options.inc" 4017 #undef LANG_OPTION_WITH_MARSHALLING 4018 4019 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4020 StringRef Name = A->getValue(); 4021 if (Name == "full" || Name == "branch") { 4022 Opts.CFProtectionBranch = 1; 4023 } 4024 } 4025 4026 if (Opts.CFProtectionBranch) { 4027 if (const Arg *A = Args.getLastArg(OPT_mcf_branch_label_scheme_EQ)) { 4028 const auto Scheme = 4029 llvm::StringSwitch<CFBranchLabelSchemeKind>(A->getValue()) 4030 #define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \ 4031 .Case(#FlagVal, CFBranchLabelSchemeKind::Kind) 4032 #include "clang/Basic/CFProtectionOptions.def" 4033 .Default(CFBranchLabelSchemeKind::Default); 4034 Opts.setCFBranchLabelScheme(Scheme); 4035 } 4036 } 4037 4038 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 4039 !Args.hasArg(OPT_sycl_std_EQ)) { 4040 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 4041 // provide -sycl-std=, we want to default it to whatever the default SYCL 4042 // version is. I could not find a way to express this with the options 4043 // tablegen because we still want this value to be SYCL_None when the user 4044 // is not in device or host mode. 4045 Opts.setSYCLVersion(LangOptions::SYCL_Default); 4046 } 4047 4048 if (Opts.ObjC) { 4049 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 4050 StringRef value = arg->getValue(); 4051 if (Opts.ObjCRuntime.tryParse(value)) 4052 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 4053 } 4054 4055 if (Args.hasArg(OPT_fobjc_gc_only)) 4056 Opts.setGC(LangOptions::GCOnly); 4057 else if (Args.hasArg(OPT_fobjc_gc)) 4058 Opts.setGC(LangOptions::HybridGC); 4059 else if (Args.hasArg(OPT_fobjc_arc)) { 4060 Opts.ObjCAutoRefCount = 1; 4061 if (!Opts.ObjCRuntime.allowsARC()) 4062 Diags.Report(diag::err_arc_unsupported_on_runtime); 4063 } 4064 4065 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 4066 // whether the feature is actually enabled. This is predominantly 4067 // determined by -fobjc-runtime, but we allow it to be overridden 4068 // from the command line for testing purposes. 4069 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 4070 Opts.ObjCWeakRuntime = 1; 4071 else 4072 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 4073 4074 // ObjCWeak determines whether __weak is actually enabled. 4075 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 4076 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 4077 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 4078 assert(!Opts.ObjCWeak); 4079 } else if (Opts.getGC() != LangOptions::NonGC) { 4080 Diags.Report(diag::err_objc_weak_with_gc); 4081 } else if (!Opts.ObjCWeakRuntime) { 4082 Diags.Report(diag::err_objc_weak_unsupported); 4083 } else { 4084 Opts.ObjCWeak = 1; 4085 } 4086 } else if (Opts.ObjCAutoRefCount) { 4087 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 4088 } 4089 4090 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 4091 Opts.ObjCSubscriptingLegacyRuntime = 4092 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 4093 } 4094 4095 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 4096 // Check that the version has 1 to 3 components and the minor and patch 4097 // versions fit in two decimal digits. 4098 VersionTuple GNUCVer; 4099 bool Invalid = GNUCVer.tryParse(A->getValue()); 4100 unsigned Major = GNUCVer.getMajor(); 4101 unsigned Minor = GNUCVer.getMinor().value_or(0); 4102 unsigned Patch = GNUCVer.getSubminor().value_or(0); 4103 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 4104 Diags.Report(diag::err_drv_invalid_value) 4105 << A->getAsString(Args) << A->getValue(); 4106 } 4107 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 4108 } 4109 4110 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 4111 Opts.IgnoreXCOFFVisibility = 1; 4112 4113 if (Args.hasArg(OPT_ftrapv)) { 4114 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 4115 // Set the handler, if one is specified. 4116 Opts.OverflowHandler = 4117 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 4118 } 4119 else if (Args.hasArg(OPT_fwrapv)) 4120 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 4121 4122 Opts.MSCompatibilityVersion = 0; 4123 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 4124 VersionTuple VT; 4125 if (VT.tryParse(A->getValue())) 4126 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 4127 << A->getValue(); 4128 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 4129 VT.getMinor().value_or(0) * 100000 + 4130 VT.getSubminor().value_or(0); 4131 } 4132 4133 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 4134 // is specified, or -std is set to a conforming mode. 4135 // Trigraphs are disabled by default in C++17 and C23 onwards. 4136 // For z/OS, trigraphs are enabled by default (without regard to the above). 4137 Opts.Trigraphs = 4138 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) || 4139 T.isOSzOS(); 4140 Opts.Trigraphs = 4141 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 4142 4143 Opts.ZOSExt = 4144 Args.hasFlag(OPT_fzos_extensions, OPT_fno_zos_extensions, T.isOSzOS()); 4145 4146 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 4147 && Opts.OpenCLVersion == 200); 4148 4149 bool HasConvergentOperations = Opts.OpenMPIsTargetDevice || Opts.OpenCL || 4150 Opts.CUDAIsDevice || Opts.SYCLIsDevice || 4151 Opts.HLSL || T.isAMDGPU() || T.isNVPTX(); 4152 Opts.ConvergentFunctions = 4153 Args.hasFlag(OPT_fconvergent_functions, OPT_fno_convergent_functions, 4154 HasConvergentOperations); 4155 4156 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 4157 if (!Opts.NoBuiltin) 4158 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 4159 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 4160 if (A->getOption().matches(options::OPT_mlong_double_64)) 4161 Opts.LongDoubleSize = 64; 4162 else if (A->getOption().matches(options::OPT_mlong_double_80)) 4163 Opts.LongDoubleSize = 80; 4164 else if (A->getOption().matches(options::OPT_mlong_double_128)) 4165 Opts.LongDoubleSize = 128; 4166 else 4167 Opts.LongDoubleSize = 0; 4168 } 4169 if (Opts.FastRelaxedMath || Opts.CLUnsafeMath) 4170 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4171 4172 llvm::sort(Opts.ModuleFeatures); 4173 4174 // -mrtd option 4175 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 4176 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 4177 Diags.Report(diag::err_drv_argument_not_allowed_with) 4178 << A->getSpelling() << "-fdefault-calling-conv"; 4179 else { 4180 switch (T.getArch()) { 4181 case llvm::Triple::x86: 4182 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 4183 break; 4184 case llvm::Triple::m68k: 4185 Opts.setDefaultCallingConv(LangOptions::DCC_RtdCall); 4186 break; 4187 default: 4188 Diags.Report(diag::err_drv_argument_not_allowed_with) 4189 << A->getSpelling() << T.getTriple(); 4190 } 4191 } 4192 } 4193 4194 // Check if -fopenmp is specified and set default version to 5.0. 4195 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 51 : 0; 4196 // Check if -fopenmp-simd is specified. 4197 bool IsSimdSpecified = 4198 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 4199 /*Default=*/false); 4200 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 4201 Opts.OpenMPUseTLS = 4202 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 4203 Opts.OpenMPIsTargetDevice = 4204 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_target_device); 4205 Opts.OpenMPIRBuilder = 4206 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 4207 bool IsTargetSpecified = 4208 Opts.OpenMPIsTargetDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 4209 4210 if (Opts.OpenMP || Opts.OpenMPSimd) { 4211 if (int Version = getLastArgIntValue( 4212 Args, OPT_fopenmp_version_EQ, 4213 (IsSimdSpecified || IsTargetSpecified) ? 51 : Opts.OpenMP, Diags)) 4214 Opts.OpenMP = Version; 4215 // Provide diagnostic when a given target is not expected to be an OpenMP 4216 // device or host. 4217 if (!Opts.OpenMPIsTargetDevice) { 4218 switch (T.getArch()) { 4219 default: 4220 break; 4221 // Add unsupported host targets here: 4222 case llvm::Triple::nvptx: 4223 case llvm::Triple::nvptx64: 4224 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 4225 break; 4226 } 4227 } 4228 } 4229 4230 // Set the flag to prevent the implementation from emitting device exception 4231 // handling code for those requiring so. 4232 if ((Opts.OpenMPIsTargetDevice && (T.isNVPTX() || T.isAMDGCN())) || 4233 Opts.OpenCLCPlusPlus) { 4234 4235 Opts.Exceptions = 0; 4236 Opts.CXXExceptions = 0; 4237 } 4238 if (Opts.OpenMPIsTargetDevice && T.isNVPTX()) { 4239 Opts.OpenMPCUDANumSMs = 4240 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 4241 Opts.OpenMPCUDANumSMs, Diags); 4242 Opts.OpenMPCUDABlocksPerSM = 4243 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 4244 Opts.OpenMPCUDABlocksPerSM, Diags); 4245 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 4246 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 4247 Opts.OpenMPCUDAReductionBufNum, Diags); 4248 } 4249 4250 // Set the value of the debugging flag used in the new offloading device RTL. 4251 // Set either by a specific value or to a default if not specified. 4252 if (Opts.OpenMPIsTargetDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 4253 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 4254 Opts.OpenMPTargetDebug = getLastArgIntValue( 4255 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 4256 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 4257 Opts.OpenMPTargetDebug = 1; 4258 } 4259 4260 if (Opts.OpenMPIsTargetDevice) { 4261 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 4262 Opts.OpenMPTeamSubscription = true; 4263 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 4264 Opts.OpenMPThreadSubscription = true; 4265 } 4266 4267 // Get the OpenMP target triples if any. 4268 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 4269 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 4270 auto getArchPtrSize = [](const llvm::Triple &T) { 4271 if (T.isArch16Bit()) 4272 return Arch16Bit; 4273 if (T.isArch32Bit()) 4274 return Arch32Bit; 4275 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 4276 return Arch64Bit; 4277 }; 4278 4279 for (unsigned i = 0; i < A->getNumValues(); ++i) { 4280 llvm::Triple TT(A->getValue(i)); 4281 4282 if (TT.getArch() == llvm::Triple::UnknownArch || 4283 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 4284 TT.getArch() == llvm::Triple::spirv64 || 4285 TT.getArch() == llvm::Triple::systemz || 4286 TT.getArch() == llvm::Triple::loongarch64 || 4287 TT.getArch() == llvm::Triple::nvptx || 4288 TT.getArch() == llvm::Triple::nvptx64 || 4289 TT.getArch() == llvm::Triple::amdgcn || 4290 TT.getArch() == llvm::Triple::x86 || 4291 TT.getArch() == llvm::Triple::x86_64)) 4292 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 4293 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 4294 Diags.Report(diag::err_drv_incompatible_omp_arch) 4295 << A->getValue(i) << T.str(); 4296 else 4297 Opts.OMPTargetTriples.push_back(TT); 4298 } 4299 } 4300 4301 // Get OpenMP host file path if any and report if a non existent file is 4302 // found 4303 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 4304 Opts.OMPHostIRFile = A->getValue(); 4305 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 4306 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 4307 << Opts.OMPHostIRFile; 4308 } 4309 4310 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 4311 Opts.OpenMPCUDAMode = Opts.OpenMPIsTargetDevice && 4312 (T.isNVPTX() || T.isAMDGCN()) && 4313 Args.hasArg(options::OPT_fopenmp_cuda_mode); 4314 4315 // OpenACC Configuration. 4316 if (Args.hasArg(options::OPT_fopenacc)) { 4317 Opts.OpenACC = true; 4318 4319 if (Arg *A = Args.getLastArg(options::OPT_openacc_macro_override)) 4320 Opts.OpenACCMacroOverride = A->getValue(); 4321 } 4322 4323 // FIXME: Eliminate this dependency. 4324 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 4325 OptSize = getOptimizationLevelSize(Args); 4326 Opts.Optimize = Opt != 0; 4327 Opts.OptimizeSize = OptSize != 0; 4328 4329 // This is the __NO_INLINE__ define, which just depends on things like the 4330 // optimization level and -fno-inline, not actually whether the backend has 4331 // inlining enabled. 4332 Opts.NoInlineDefine = !Opts.Optimize; 4333 if (Arg *InlineArg = Args.getLastArg( 4334 options::OPT_finline_functions, options::OPT_finline_hint_functions, 4335 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 4336 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 4337 Opts.NoInlineDefine = true; 4338 4339 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 4340 StringRef Val = A->getValue(); 4341 if (Val == "fast") 4342 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4343 else if (Val == "on") 4344 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 4345 else if (Val == "off") 4346 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 4347 else if (Val == "fast-honor-pragmas") 4348 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 4349 else 4350 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 4351 } 4352 4353 if (auto *A = 4354 Args.getLastArg(OPT_fsanitize_undefined_ignore_overflow_pattern_EQ)) { 4355 for (int i = 0, n = A->getNumValues(); i != n; ++i) { 4356 Opts.OverflowPatternExclusionMask |= 4357 llvm::StringSwitch<unsigned>(A->getValue(i)) 4358 .Case("none", LangOptionsBase::None) 4359 .Case("all", LangOptionsBase::All) 4360 .Case("add-unsigned-overflow-test", 4361 LangOptionsBase::AddUnsignedOverflowTest) 4362 .Case("add-signed-overflow-test", 4363 LangOptionsBase::AddSignedOverflowTest) 4364 .Case("negated-unsigned-const", LangOptionsBase::NegUnsignedConst) 4365 .Case("unsigned-post-decr-while", 4366 LangOptionsBase::PostDecrInWhile) 4367 .Default(0); 4368 } 4369 } 4370 4371 // Parse -fsanitize= arguments. 4372 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4373 Diags, Opts.Sanitize); 4374 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 4375 std::vector<std::string> systemIgnorelists = 4376 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 4377 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 4378 systemIgnorelists.begin(), 4379 systemIgnorelists.end()); 4380 4381 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 4382 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4383 4384 StringRef Ver = A->getValue(); 4385 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4386 unsigned Major, Minor = 0; 4387 4388 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4389 // y or y.0 (4 <= y <= current version). 4390 if (!VerParts.first.starts_with("0") && 4391 !VerParts.first.getAsInteger(10, Major) && 3 <= Major && 4392 Major <= CLANG_VERSION_MAJOR && 4393 (Major == 3 4394 ? VerParts.second.size() == 1 && 4395 !VerParts.second.getAsInteger(10, Minor) 4396 : VerParts.first.size() == Ver.size() || VerParts.second == "0")) { 4397 // Got a valid version number. 4398 if (Major == 3 && Minor <= 8) 4399 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4400 else if (Major <= 4) 4401 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4402 else if (Major <= 6) 4403 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4404 else if (Major <= 7) 4405 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4406 else if (Major <= 9) 4407 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4408 else if (Major <= 11) 4409 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4410 else if (Major <= 12) 4411 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4412 else if (Major <= 14) 4413 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 4414 else if (Major <= 15) 4415 Opts.setClangABICompat(LangOptions::ClangABI::Ver15); 4416 else if (Major <= 17) 4417 Opts.setClangABICompat(LangOptions::ClangABI::Ver17); 4418 else if (Major <= 18) 4419 Opts.setClangABICompat(LangOptions::ClangABI::Ver18); 4420 else if (Major <= 19) 4421 Opts.setClangABICompat(LangOptions::ClangABI::Ver19); 4422 } else if (Ver != "latest") { 4423 Diags.Report(diag::err_drv_invalid_value) 4424 << A->getAsString(Args) << A->getValue(); 4425 } 4426 } 4427 4428 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4429 StringRef SignScope = A->getValue(); 4430 4431 if (SignScope.equals_insensitive("none")) 4432 Opts.setSignReturnAddressScope( 4433 LangOptions::SignReturnAddressScopeKind::None); 4434 else if (SignScope.equals_insensitive("all")) 4435 Opts.setSignReturnAddressScope( 4436 LangOptions::SignReturnAddressScopeKind::All); 4437 else if (SignScope.equals_insensitive("non-leaf")) 4438 Opts.setSignReturnAddressScope( 4439 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4440 else 4441 Diags.Report(diag::err_drv_invalid_value) 4442 << A->getAsString(Args) << SignScope; 4443 4444 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4445 StringRef SignKey = A->getValue(); 4446 if (!SignScope.empty() && !SignKey.empty()) { 4447 if (SignKey == "a_key") 4448 Opts.setSignReturnAddressKey( 4449 LangOptions::SignReturnAddressKeyKind::AKey); 4450 else if (SignKey == "b_key") 4451 Opts.setSignReturnAddressKey( 4452 LangOptions::SignReturnAddressKeyKind::BKey); 4453 else 4454 Diags.Report(diag::err_drv_invalid_value) 4455 << A->getAsString(Args) << SignKey; 4456 } 4457 } 4458 } 4459 4460 // The value can be empty, which indicates the system default should be used. 4461 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4462 if (!CXXABI.empty()) { 4463 if (!TargetCXXABI::isABI(CXXABI)) { 4464 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4465 } else { 4466 auto Kind = TargetCXXABI::getKind(CXXABI); 4467 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4468 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4469 else 4470 Opts.CXXABI = Kind; 4471 } 4472 } 4473 4474 Opts.RelativeCXXABIVTables = 4475 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4476 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4477 TargetCXXABI::usesRelativeVTables(T)); 4478 4479 // RTTI is on by default. 4480 bool HasRTTI = !Args.hasArg(options::OPT_fno_rtti); 4481 Opts.OmitVTableRTTI = 4482 Args.hasFlag(options::OPT_fexperimental_omit_vtable_rtti, 4483 options::OPT_fno_experimental_omit_vtable_rtti, false); 4484 if (Opts.OmitVTableRTTI && HasRTTI) 4485 Diags.Report(diag::err_drv_using_omit_rtti_component_without_no_rtti); 4486 4487 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4488 auto Split = StringRef(A).split('='); 4489 Opts.MacroPrefixMap.insert( 4490 {std::string(Split.first), std::string(Split.second)}); 4491 } 4492 4493 Opts.UseTargetPathSeparator = 4494 !Args.getLastArg(OPT_fno_file_reproducible) && 4495 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4496 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4497 Args.getLastArg(OPT_ffile_reproducible)); 4498 4499 // Error if -mvscale-min is unbounded. 4500 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4501 unsigned VScaleMin; 4502 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4503 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4504 } 4505 4506 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4507 std::ifstream SeedFile(A->getValue(0)); 4508 4509 if (!SeedFile.is_open()) 4510 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4511 << A->getValue(0); 4512 4513 std::getline(SeedFile, Opts.RandstructSeed); 4514 } 4515 4516 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4517 Opts.RandstructSeed = A->getValue(0); 4518 4519 // Validate options for HLSL 4520 if (Opts.HLSL) { 4521 // TODO: Revisit restricting SPIR-V to logical once we've figured out how to 4522 // handle PhysicalStorageBuffer64 memory model 4523 if (T.isDXIL() || T.isSPIRVLogical()) { 4524 enum { ShaderModel, VulkanEnv, ShaderStage }; 4525 enum { OS, Environment }; 4526 4527 int ExpectedOS = T.isSPIRVLogical() ? VulkanEnv : ShaderModel; 4528 4529 if (T.getOSName().empty()) { 4530 Diags.Report(diag::err_drv_hlsl_bad_shader_required_in_target) 4531 << ExpectedOS << OS << T.str(); 4532 } else if (T.getEnvironmentName().empty()) { 4533 Diags.Report(diag::err_drv_hlsl_bad_shader_required_in_target) 4534 << ShaderStage << Environment << T.str(); 4535 } else if (!T.isShaderStageEnvironment()) { 4536 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4537 << ShaderStage << T.getEnvironmentName() << T.str(); 4538 } 4539 4540 if (T.isDXIL()) { 4541 if (!T.isShaderModelOS() || T.getOSVersion() == VersionTuple(0)) { 4542 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4543 << ShaderModel << T.getOSName() << T.str(); 4544 } 4545 // Validate that if fnative-half-type is given, that 4546 // the language standard is at least hlsl2018, and that 4547 // the target shader model is at least 6.2. 4548 if (Args.getLastArg(OPT_fnative_half_type)) { 4549 const LangStandard &Std = 4550 LangStandard::getLangStandardForKind(Opts.LangStd); 4551 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018 && 4552 T.getOSVersion() >= VersionTuple(6, 2))) 4553 Diags.Report(diag::err_drv_hlsl_16bit_types_unsupported) 4554 << "-enable-16bit-types" << true << Std.getName() 4555 << T.getOSVersion().getAsString(); 4556 } 4557 } else if (T.isSPIRVLogical()) { 4558 if (!T.isVulkanOS() || T.getVulkanVersion() == VersionTuple(0)) { 4559 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4560 << VulkanEnv << T.getOSName() << T.str(); 4561 } 4562 if (Args.getLastArg(OPT_fnative_half_type)) { 4563 const LangStandard &Std = 4564 LangStandard::getLangStandardForKind(Opts.LangStd); 4565 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018)) 4566 Diags.Report(diag::err_drv_hlsl_16bit_types_unsupported) 4567 << "-fnative-half-type" << false << Std.getName(); 4568 } 4569 } else { 4570 llvm_unreachable("expected DXIL or SPIR-V target"); 4571 } 4572 } else 4573 Diags.Report(diag::err_drv_hlsl_unsupported_target) << T.str(); 4574 4575 if (Opts.LangStd < LangStandard::lang_hlsl202x) { 4576 const LangStandard &Requested = 4577 LangStandard::getLangStandardForKind(Opts.LangStd); 4578 const LangStandard &Recommended = 4579 LangStandard::getLangStandardForKind(LangStandard::lang_hlsl202x); 4580 Diags.Report(diag::warn_hlsl_langstd_minimal) 4581 << Requested.getName() << Recommended.getName(); 4582 } 4583 } 4584 4585 return Diags.getNumErrors() == NumErrorsBefore; 4586 } 4587 4588 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4589 switch (Action) { 4590 case frontend::ASTDeclList: 4591 case frontend::ASTDump: 4592 case frontend::ASTPrint: 4593 case frontend::ASTView: 4594 case frontend::EmitAssembly: 4595 case frontend::EmitBC: 4596 case frontend::EmitCIR: 4597 case frontend::EmitHTML: 4598 case frontend::EmitLLVM: 4599 case frontend::EmitLLVMOnly: 4600 case frontend::EmitCodeGenOnly: 4601 case frontend::EmitObj: 4602 case frontend::ExtractAPI: 4603 case frontend::FixIt: 4604 case frontend::GenerateModule: 4605 case frontend::GenerateModuleInterface: 4606 case frontend::GenerateReducedModuleInterface: 4607 case frontend::GenerateHeaderUnit: 4608 case frontend::GeneratePCH: 4609 case frontend::GenerateInterfaceStubs: 4610 case frontend::ParseSyntaxOnly: 4611 case frontend::ModuleFileInfo: 4612 case frontend::VerifyPCH: 4613 case frontend::PluginAction: 4614 case frontend::RewriteObjC: 4615 case frontend::RewriteTest: 4616 case frontend::RunAnalysis: 4617 case frontend::TemplightDump: 4618 case frontend::MigrateSource: 4619 return false; 4620 4621 case frontend::DumpCompilerOptions: 4622 case frontend::DumpRawTokens: 4623 case frontend::DumpTokens: 4624 case frontend::InitOnly: 4625 case frontend::PrintPreamble: 4626 case frontend::PrintPreprocessedInput: 4627 case frontend::RewriteMacros: 4628 case frontend::RunPreprocessorOnly: 4629 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4630 return true; 4631 } 4632 llvm_unreachable("invalid frontend action"); 4633 } 4634 4635 static void GeneratePreprocessorArgs(const PreprocessorOptions &Opts, 4636 ArgumentConsumer Consumer, 4637 const LangOptions &LangOpts, 4638 const FrontendOptions &FrontendOpts, 4639 const CodeGenOptions &CodeGenOpts) { 4640 const PreprocessorOptions *PreprocessorOpts = &Opts; 4641 4642 #define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \ 4643 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4644 #include "clang/Driver/Options.inc" 4645 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4646 4647 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4648 GenerateArg(Consumer, OPT_pch_through_hdrstop_use); 4649 4650 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4651 GenerateArg(Consumer, OPT_error_on_deserialized_pch_decl, D); 4652 4653 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4654 GenerateArg(Consumer, OPT_preamble_bytes_EQ, 4655 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4656 (Opts.PrecompiledPreambleBytes.second ? "1" : "0")); 4657 4658 for (const auto &M : Opts.Macros) { 4659 // Don't generate __CET__ macro definitions. They are implied by the 4660 // -fcf-protection option that is generated elsewhere. 4661 if (M.first == "__CET__=1" && !M.second && 4662 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4663 continue; 4664 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4665 !CodeGenOpts.CFProtectionBranch) 4666 continue; 4667 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4668 CodeGenOpts.CFProtectionBranch) 4669 continue; 4670 4671 GenerateArg(Consumer, M.second ? OPT_U : OPT_D, M.first); 4672 } 4673 4674 for (const auto &I : Opts.Includes) { 4675 // Don't generate OpenCL includes. They are implied by other flags that are 4676 // generated elsewhere. 4677 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4678 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4679 I == "opencl-c.h")) 4680 continue; 4681 // Don't generate HLSL includes. They are implied by other flags that are 4682 // generated elsewhere. 4683 if (LangOpts.HLSL && I == "hlsl.h") 4684 continue; 4685 4686 GenerateArg(Consumer, OPT_include, I); 4687 } 4688 4689 for (const auto &CI : Opts.ChainedIncludes) 4690 GenerateArg(Consumer, OPT_chain_include, CI); 4691 4692 for (const auto &RF : Opts.RemappedFiles) 4693 GenerateArg(Consumer, OPT_remap_file, RF.first + ";" + RF.second); 4694 4695 if (Opts.SourceDateEpoch) 4696 GenerateArg(Consumer, OPT_source_date_epoch, Twine(*Opts.SourceDateEpoch)); 4697 4698 if (Opts.DefineTargetOSMacros) 4699 GenerateArg(Consumer, OPT_fdefine_target_os_macros); 4700 4701 for (const auto &EmbedEntry : Opts.EmbedEntries) 4702 GenerateArg(Consumer, OPT_embed_dir_EQ, EmbedEntry); 4703 4704 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4705 // generated elsewhere. 4706 } 4707 4708 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4709 DiagnosticsEngine &Diags, 4710 frontend::ActionKind Action, 4711 const FrontendOptions &FrontendOpts) { 4712 unsigned NumErrorsBefore = Diags.getNumErrors(); 4713 4714 PreprocessorOptions *PreprocessorOpts = &Opts; 4715 4716 #define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \ 4717 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4718 #include "clang/Driver/Options.inc" 4719 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4720 4721 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4722 Args.hasArg(OPT_pch_through_hdrstop_use); 4723 4724 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4725 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4726 4727 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4728 StringRef Value(A->getValue()); 4729 size_t Comma = Value.find(','); 4730 unsigned Bytes = 0; 4731 unsigned EndOfLine = 0; 4732 4733 if (Comma == StringRef::npos || 4734 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4735 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4736 Diags.Report(diag::err_drv_preamble_format); 4737 else { 4738 Opts.PrecompiledPreambleBytes.first = Bytes; 4739 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4740 } 4741 } 4742 4743 // Add the __CET__ macro if a CFProtection option is set. 4744 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4745 StringRef Name = A->getValue(); 4746 if (Name == "branch") 4747 Opts.addMacroDef("__CET__=1"); 4748 else if (Name == "return") 4749 Opts.addMacroDef("__CET__=2"); 4750 else if (Name == "full") 4751 Opts.addMacroDef("__CET__=3"); 4752 } 4753 4754 // Add macros from the command line. 4755 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4756 if (A->getOption().matches(OPT_D)) 4757 Opts.addMacroDef(A->getValue()); 4758 else 4759 Opts.addMacroUndef(A->getValue()); 4760 } 4761 4762 // Add the ordered list of -includes. 4763 for (const auto *A : Args.filtered(OPT_include)) 4764 Opts.Includes.emplace_back(A->getValue()); 4765 4766 for (const auto *A : Args.filtered(OPT_chain_include)) 4767 Opts.ChainedIncludes.emplace_back(A->getValue()); 4768 4769 for (const auto *A : Args.filtered(OPT_remap_file)) { 4770 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4771 4772 if (Split.second.empty()) { 4773 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4774 continue; 4775 } 4776 4777 Opts.addRemappedFile(Split.first, Split.second); 4778 } 4779 4780 if (const Arg *A = Args.getLastArg(OPT_source_date_epoch)) { 4781 StringRef Epoch = A->getValue(); 4782 // SOURCE_DATE_EPOCH, if specified, must be a non-negative decimal integer. 4783 // On time64 systems, pick 253402300799 (the UNIX timestamp of 4784 // 9999-12-31T23:59:59Z) as the upper bound. 4785 const uint64_t MaxTimestamp = 4786 std::min<uint64_t>(std::numeric_limits<time_t>::max(), 253402300799); 4787 uint64_t V; 4788 if (Epoch.getAsInteger(10, V) || V > MaxTimestamp) { 4789 Diags.Report(diag::err_fe_invalid_source_date_epoch) 4790 << Epoch << MaxTimestamp; 4791 } else { 4792 Opts.SourceDateEpoch = V; 4793 } 4794 } 4795 4796 for (const auto *A : Args.filtered(OPT_embed_dir_EQ)) { 4797 StringRef Val = A->getValue(); 4798 Opts.EmbedEntries.push_back(std::string(Val)); 4799 } 4800 4801 // Always avoid lexing editor placeholders when we're just running the 4802 // preprocessor as we never want to emit the 4803 // "editor placeholder in source file" error in PP only mode. 4804 if (isStrictlyPreprocessorAction(Action)) 4805 Opts.LexEditorPlaceholders = false; 4806 4807 Opts.DefineTargetOSMacros = 4808 Args.hasFlag(OPT_fdefine_target_os_macros, 4809 OPT_fno_define_target_os_macros, Opts.DefineTargetOSMacros); 4810 4811 return Diags.getNumErrors() == NumErrorsBefore; 4812 } 4813 4814 static void 4815 GeneratePreprocessorOutputArgs(const PreprocessorOutputOptions &Opts, 4816 ArgumentConsumer Consumer, 4817 frontend::ActionKind Action) { 4818 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4819 4820 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 4821 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4822 #include "clang/Driver/Options.inc" 4823 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4824 4825 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4826 if (Generate_dM) 4827 GenerateArg(Consumer, OPT_dM); 4828 if (!Generate_dM && Opts.ShowMacros) 4829 GenerateArg(Consumer, OPT_dD); 4830 if (Opts.DirectivesOnly) 4831 GenerateArg(Consumer, OPT_fdirectives_only); 4832 } 4833 4834 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4835 ArgList &Args, DiagnosticsEngine &Diags, 4836 frontend::ActionKind Action) { 4837 unsigned NumErrorsBefore = Diags.getNumErrors(); 4838 4839 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4840 4841 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 4842 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4843 #include "clang/Driver/Options.inc" 4844 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4845 4846 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4847 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4848 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4849 4850 return Diags.getNumErrors() == NumErrorsBefore; 4851 } 4852 4853 static void GenerateTargetArgs(const TargetOptions &Opts, 4854 ArgumentConsumer Consumer) { 4855 const TargetOptions *TargetOpts = &Opts; 4856 #define TARGET_OPTION_WITH_MARSHALLING(...) \ 4857 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4858 #include "clang/Driver/Options.inc" 4859 #undef TARGET_OPTION_WITH_MARSHALLING 4860 4861 if (!Opts.SDKVersion.empty()) 4862 GenerateArg(Consumer, OPT_target_sdk_version_EQ, 4863 Opts.SDKVersion.getAsString()); 4864 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4865 GenerateArg(Consumer, OPT_darwin_target_variant_sdk_version_EQ, 4866 Opts.DarwinTargetVariantSDKVersion.getAsString()); 4867 } 4868 4869 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4870 DiagnosticsEngine &Diags) { 4871 unsigned NumErrorsBefore = Diags.getNumErrors(); 4872 4873 TargetOptions *TargetOpts = &Opts; 4874 4875 #define TARGET_OPTION_WITH_MARSHALLING(...) \ 4876 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4877 #include "clang/Driver/Options.inc" 4878 #undef TARGET_OPTION_WITH_MARSHALLING 4879 4880 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4881 llvm::VersionTuple Version; 4882 if (Version.tryParse(A->getValue())) 4883 Diags.Report(diag::err_drv_invalid_value) 4884 << A->getAsString(Args) << A->getValue(); 4885 else 4886 Opts.SDKVersion = Version; 4887 } 4888 if (Arg *A = 4889 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4890 llvm::VersionTuple Version; 4891 if (Version.tryParse(A->getValue())) 4892 Diags.Report(diag::err_drv_invalid_value) 4893 << A->getAsString(Args) << A->getValue(); 4894 else 4895 Opts.DarwinTargetVariantSDKVersion = Version; 4896 } 4897 4898 return Diags.getNumErrors() == NumErrorsBefore; 4899 } 4900 4901 bool CompilerInvocation::CreateFromArgsImpl( 4902 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4903 DiagnosticsEngine &Diags, const char *Argv0) { 4904 unsigned NumErrorsBefore = Diags.getNumErrors(); 4905 4906 // Parse the arguments. 4907 const OptTable &Opts = getDriverOptTable(); 4908 llvm::opt::Visibility VisibilityMask(options::CC1Option); 4909 unsigned MissingArgIndex, MissingArgCount; 4910 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4911 MissingArgCount, VisibilityMask); 4912 LangOptions &LangOpts = Res.getLangOpts(); 4913 4914 // Check for missing argument error. 4915 if (MissingArgCount) 4916 Diags.Report(diag::err_drv_missing_argument) 4917 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4918 4919 // Issue errors on unknown arguments. 4920 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4921 auto ArgString = A->getAsString(Args); 4922 std::string Nearest; 4923 if (Opts.findNearest(ArgString, Nearest, VisibilityMask) > 1) 4924 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4925 else 4926 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4927 << ArgString << Nearest; 4928 } 4929 4930 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4931 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4932 ParseAnalyzerArgs(Res.getAnalyzerOpts(), Args, Diags); 4933 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4934 /*DefaultDiagColor=*/false); 4935 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4936 // FIXME: We shouldn't have to pass the DashX option around here 4937 InputKind DashX = Res.getFrontendOpts().DashX; 4938 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4939 llvm::Triple T(Res.getTargetOpts().Triple); 4940 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4941 Res.getFileSystemOpts().WorkingDir); 4942 ParseAPINotesArgs(Res.getAPINotesOpts(), Args, Diags); 4943 4944 ParsePointerAuthArgs(LangOpts, Args, Diags); 4945 4946 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4947 Diags); 4948 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4949 LangOpts.ObjCExceptions = 1; 4950 4951 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4952 if (Warning == "misexpect" && 4953 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4954 Res.getCodeGenOpts().MisExpect = true; 4955 } 4956 } 4957 4958 if (LangOpts.CUDA) { 4959 // During CUDA device-side compilation, the aux triple is the 4960 // triple used for host compilation. 4961 if (LangOpts.CUDAIsDevice) 4962 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4963 } 4964 4965 // Set the triple of the host for OpenMP device compile. 4966 if (LangOpts.OpenMPIsTargetDevice) 4967 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4968 4969 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4970 Res.getFrontendOpts().OutputFile, LangOpts); 4971 4972 // FIXME: Override value name discarding when asan or msan is used because the 4973 // backend passes depend on the name of the alloca in order to print out 4974 // names. 4975 Res.getCodeGenOpts().DiscardValueNames &= 4976 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4977 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4978 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4979 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4980 4981 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4982 Res.getFrontendOpts().ProgramAction, 4983 Res.getFrontendOpts()); 4984 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4985 Res.getFrontendOpts().ProgramAction); 4986 4987 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4988 Res.getFrontendOpts().ProgramAction, 4989 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4990 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4991 Res.getDependencyOutputOpts().Targets.empty()) 4992 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4993 4994 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4995 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4996 !Res.getLangOpts().Sanitize.empty()) { 4997 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4998 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4999 } 5000 5001 // Store the command-line for using in the CodeView backend. 5002 if (Res.getCodeGenOpts().CodeViewCommandLine) { 5003 Res.getCodeGenOpts().Argv0 = Argv0; 5004 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 5005 } 5006 5007 // Set PGOOptions. Need to create a temporary VFS to read the profile 5008 // to determine the PGO type. 5009 if (!Res.getCodeGenOpts().ProfileInstrumentUsePath.empty()) { 5010 auto FS = 5011 createVFSFromOverlayFiles(Res.getHeaderSearchOpts().VFSOverlayFiles, 5012 Diags, llvm::vfs::getRealFileSystem()); 5013 setPGOUseInstrumentor(Res.getCodeGenOpts(), 5014 Res.getCodeGenOpts().ProfileInstrumentUsePath, *FS, 5015 Diags); 5016 } 5017 5018 FixupInvocation(Res, Diags, Args, DashX); 5019 5020 return Diags.getNumErrors() == NumErrorsBefore; 5021 } 5022 5023 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 5024 ArrayRef<const char *> CommandLineArgs, 5025 DiagnosticsEngine &Diags, 5026 const char *Argv0) { 5027 CompilerInvocation DummyInvocation; 5028 5029 return RoundTrip( 5030 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 5031 DiagnosticsEngine &Diags, const char *Argv0) { 5032 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 5033 }, 5034 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 5035 StringAllocator SA) { 5036 Args.push_back("-cc1"); 5037 Invocation.generateCC1CommandLine(Args, SA); 5038 }, 5039 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 5040 } 5041 5042 std::string CompilerInvocation::getModuleHash() const { 5043 // FIXME: Consider using SHA1 instead of MD5. 5044 llvm::HashBuilder<llvm::MD5, llvm::endianness::native> HBuilder; 5045 5046 // Note: For QoI reasons, the things we use as a hash here should all be 5047 // dumped via the -module-info flag. 5048 5049 // Start the signature with the compiler version. 5050 HBuilder.add(getClangFullRepositoryVersion()); 5051 5052 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 5053 // and getClangFullRepositoryVersion() doesn't include git revision. 5054 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 5055 5056 // Extend the signature with the language options 5057 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 5058 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 5059 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 5060 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 5061 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 5062 #include "clang/Basic/LangOptions.def" 5063 5064 HBuilder.addRange(getLangOpts().ModuleFeatures); 5065 5066 HBuilder.add(getLangOpts().ObjCRuntime); 5067 HBuilder.addRange(getLangOpts().CommentOpts.BlockCommandNames); 5068 5069 // Extend the signature with the target options. 5070 HBuilder.add(getTargetOpts().Triple, getTargetOpts().CPU, 5071 getTargetOpts().TuneCPU, getTargetOpts().ABI); 5072 HBuilder.addRange(getTargetOpts().FeaturesAsWritten); 5073 5074 // Extend the signature with preprocessor options. 5075 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 5076 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 5077 5078 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 5079 for (const auto &Macro : getPreprocessorOpts().Macros) { 5080 // If we're supposed to ignore this macro for the purposes of modules, 5081 // don't put it into the hash. 5082 if (!hsOpts.ModulesIgnoreMacros.empty()) { 5083 // Check whether we're ignoring this macro. 5084 StringRef MacroDef = Macro.first; 5085 if (hsOpts.ModulesIgnoreMacros.count( 5086 llvm::CachedHashString(MacroDef.split('=').first))) 5087 continue; 5088 } 5089 5090 HBuilder.add(Macro); 5091 } 5092 5093 // Extend the signature with the sysroot and other header search options. 5094 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 5095 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 5096 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 5097 hsOpts.ModulesValidateDiagnosticOptions); 5098 HBuilder.add(hsOpts.ResourceDir); 5099 5100 if (hsOpts.ModulesStrictContextHash) { 5101 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 5102 HBuilder.addRange(hsOpts.UserEntries); 5103 HBuilder.addRange(hsOpts.VFSOverlayFiles); 5104 5105 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 5106 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 5107 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 5108 HBuilder.add(diagOpts.get##Name()); 5109 #include "clang/Basic/DiagnosticOptions.def" 5110 #undef DIAGOPT 5111 #undef ENUM_DIAGOPT 5112 } 5113 5114 // Extend the signature with the user build path. 5115 HBuilder.add(hsOpts.ModuleUserBuildPath); 5116 5117 // Extend the signature with the module file extensions. 5118 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 5119 ext->hashExtension(HBuilder); 5120 5121 // Extend the signature with the Swift version for API notes. 5122 const APINotesOptions &APINotesOpts = getAPINotesOpts(); 5123 if (!APINotesOpts.SwiftVersion.empty()) { 5124 HBuilder.add(APINotesOpts.SwiftVersion.getMajor()); 5125 if (auto Minor = APINotesOpts.SwiftVersion.getMinor()) 5126 HBuilder.add(*Minor); 5127 if (auto Subminor = APINotesOpts.SwiftVersion.getSubminor()) 5128 HBuilder.add(*Subminor); 5129 if (auto Build = APINotesOpts.SwiftVersion.getBuild()) 5130 HBuilder.add(*Build); 5131 } 5132 5133 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 5134 // affects the debug info in the PCM. 5135 if (getCodeGenOpts().DebugTypeExtRefs) 5136 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 5137 5138 // Extend the signature with the affecting debug options. 5139 if (getHeaderSearchOpts().ModuleFormat == "obj") { 5140 #define DEBUGOPT(Name, Bits, Default) HBuilder.add(CodeGenOpts->Name); 5141 #define VALUE_DEBUGOPT(Name, Bits, Default) HBuilder.add(CodeGenOpts->Name); 5142 #define ENUM_DEBUGOPT(Name, Type, Bits, Default) \ 5143 HBuilder.add(static_cast<unsigned>(CodeGenOpts->get##Name())); 5144 #define BENIGN_DEBUGOPT(Name, Bits, Default) 5145 #define BENIGN_VALUE_DEBUGOPT(Name, Bits, Default) 5146 #define BENIGN_ENUM_DEBUGOPT(Name, Type, Bits, Default) 5147 #include "clang/Basic/DebugOptions.def" 5148 } 5149 5150 // Extend the signature with the enabled sanitizers, if at least one is 5151 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 5152 SanitizerSet SanHash = getLangOpts().Sanitize; 5153 SanHash.clear(getPPTransparentSanitizers()); 5154 if (!SanHash.empty()) 5155 HBuilder.add(SanHash.Mask); 5156 5157 llvm::MD5::MD5Result Result; 5158 HBuilder.getHasher().final(Result); 5159 uint64_t Hash = Result.high() ^ Result.low(); 5160 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 5161 } 5162 5163 void CompilerInvocationBase::generateCC1CommandLine( 5164 ArgumentConsumer Consumer) const { 5165 llvm::Triple T(getTargetOpts().Triple); 5166 5167 GenerateFileSystemArgs(getFileSystemOpts(), Consumer); 5168 GenerateMigratorArgs(getMigratorOpts(), Consumer); 5169 GenerateAnalyzerArgs(getAnalyzerOpts(), Consumer); 5170 GenerateDiagnosticArgs(getDiagnosticOpts(), Consumer, 5171 /*DefaultDiagColor=*/false); 5172 GenerateFrontendArgs(getFrontendOpts(), Consumer, getLangOpts().IsHeaderFile); 5173 GenerateTargetArgs(getTargetOpts(), Consumer); 5174 GenerateHeaderSearchArgs(getHeaderSearchOpts(), Consumer); 5175 GenerateAPINotesArgs(getAPINotesOpts(), Consumer); 5176 GeneratePointerAuthArgs(getLangOpts(), Consumer); 5177 GenerateLangArgs(getLangOpts(), Consumer, T, getFrontendOpts().DashX); 5178 GenerateCodeGenArgs(getCodeGenOpts(), Consumer, T, 5179 getFrontendOpts().OutputFile, &getLangOpts()); 5180 GeneratePreprocessorArgs(getPreprocessorOpts(), Consumer, getLangOpts(), 5181 getFrontendOpts(), getCodeGenOpts()); 5182 GeneratePreprocessorOutputArgs(getPreprocessorOutputOpts(), Consumer, 5183 getFrontendOpts().ProgramAction); 5184 GenerateDependencyOutputArgs(getDependencyOutputOpts(), Consumer); 5185 } 5186 5187 std::vector<std::string> CompilerInvocationBase::getCC1CommandLine() const { 5188 std::vector<std::string> Args{"-cc1"}; 5189 generateCC1CommandLine( 5190 [&Args](const Twine &Arg) { Args.push_back(Arg.str()); }); 5191 return Args; 5192 } 5193 5194 void CompilerInvocation::resetNonModularOptions() { 5195 getLangOpts().resetNonModularOptions(); 5196 getPreprocessorOpts().resetNonModularOptions(); 5197 getCodeGenOpts().resetNonModularOptions(getHeaderSearchOpts().ModuleFormat); 5198 } 5199 5200 void CompilerInvocation::clearImplicitModuleBuildOptions() { 5201 getLangOpts().ImplicitModules = false; 5202 getHeaderSearchOpts().ImplicitModuleMaps = false; 5203 getHeaderSearchOpts().ModuleCachePath.clear(); 5204 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false; 5205 getHeaderSearchOpts().BuildSessionTimestamp = 0; 5206 // The specific values we canonicalize to for pruning don't affect behaviour, 5207 /// so use the default values so they may be dropped from the command-line. 5208 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60; 5209 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60; 5210 } 5211 5212 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 5213 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 5214 DiagnosticsEngine &Diags) { 5215 return createVFSFromCompilerInvocation(CI, Diags, 5216 llvm::vfs::getRealFileSystem()); 5217 } 5218 5219 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 5220 clang::createVFSFromCompilerInvocation( 5221 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 5222 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 5223 return createVFSFromOverlayFiles(CI.getHeaderSearchOpts().VFSOverlayFiles, 5224 Diags, std::move(BaseFS)); 5225 } 5226 5227 IntrusiveRefCntPtr<llvm::vfs::FileSystem> clang::createVFSFromOverlayFiles( 5228 ArrayRef<std::string> VFSOverlayFiles, DiagnosticsEngine &Diags, 5229 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 5230 if (VFSOverlayFiles.empty()) 5231 return BaseFS; 5232 5233 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 5234 // earlier vfs files are on the bottom 5235 for (const auto &File : VFSOverlayFiles) { 5236 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 5237 Result->getBufferForFile(File); 5238 if (!Buffer) { 5239 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 5240 continue; 5241 } 5242 5243 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 5244 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 5245 /*DiagContext*/ nullptr, Result); 5246 if (!FS) { 5247 Diags.Report(diag::err_invalid_vfs_overlay) << File; 5248 continue; 5249 } 5250 5251 Result = FS; 5252 } 5253 return Result; 5254 } 5255