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/XRayInstr.h" 28 #include "clang/Config/config.h" 29 #include "clang/Driver/Driver.h" 30 #include "clang/Driver/Options.h" 31 #include "clang/Frontend/CommandLineSourceLoc.h" 32 #include "clang/Frontend/DependencyOutputOptions.h" 33 #include "clang/Frontend/FrontendDiagnostic.h" 34 #include "clang/Frontend/FrontendOptions.h" 35 #include "clang/Frontend/MigratorOptions.h" 36 #include "clang/Frontend/PreprocessorOutputOptions.h" 37 #include "clang/Frontend/TextDiagnosticBuffer.h" 38 #include "clang/Frontend/Utils.h" 39 #include "clang/Lex/HeaderSearchOptions.h" 40 #include "clang/Lex/PreprocessorOptions.h" 41 #include "clang/Serialization/ASTBitCodes.h" 42 #include "clang/Serialization/ModuleFileExtension.h" 43 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 44 #include "llvm/ADT/APInt.h" 45 #include "llvm/ADT/ArrayRef.h" 46 #include "llvm/ADT/CachedHashString.h" 47 #include "llvm/ADT/FloatingPointMode.h" 48 #include "llvm/ADT/STLExtras.h" 49 #include "llvm/ADT/SmallVector.h" 50 #include "llvm/ADT/StringRef.h" 51 #include "llvm/ADT/StringSwitch.h" 52 #include "llvm/ADT/Twine.h" 53 #include "llvm/Config/llvm-config.h" 54 #include "llvm/Frontend/Debug/Options.h" 55 #include "llvm/IR/DebugInfoMetadata.h" 56 #include "llvm/Linker/Linker.h" 57 #include "llvm/MC/MCTargetOptions.h" 58 #include "llvm/Option/Arg.h" 59 #include "llvm/Option/ArgList.h" 60 #include "llvm/Option/OptSpecifier.h" 61 #include "llvm/Option/OptTable.h" 62 #include "llvm/Option/Option.h" 63 #include "llvm/ProfileData/InstrProfReader.h" 64 #include "llvm/Remarks/HotnessThresholdParser.h" 65 #include "llvm/Support/CodeGen.h" 66 #include "llvm/Support/Compiler.h" 67 #include "llvm/Support/Error.h" 68 #include "llvm/Support/ErrorHandling.h" 69 #include "llvm/Support/ErrorOr.h" 70 #include "llvm/Support/FileSystem.h" 71 #include "llvm/Support/HashBuilder.h" 72 #include "llvm/Support/MathExtras.h" 73 #include "llvm/Support/MemoryBuffer.h" 74 #include "llvm/Support/Path.h" 75 #include "llvm/Support/Process.h" 76 #include "llvm/Support/Regex.h" 77 #include "llvm/Support/VersionTuple.h" 78 #include "llvm/Support/VirtualFileSystem.h" 79 #include "llvm/Support/raw_ostream.h" 80 #include "llvm/Target/TargetOptions.h" 81 #include "llvm/TargetParser/Host.h" 82 #include "llvm/TargetParser/Triple.h" 83 #include <algorithm> 84 #include <cassert> 85 #include <cstddef> 86 #include <cstring> 87 #include <ctime> 88 #include <fstream> 89 #include <limits> 90 #include <memory> 91 #include <optional> 92 #include <string> 93 #include <tuple> 94 #include <type_traits> 95 #include <utility> 96 #include <vector> 97 98 using namespace clang; 99 using namespace driver; 100 using namespace options; 101 using namespace llvm::opt; 102 103 //===----------------------------------------------------------------------===// 104 // Helpers. 105 //===----------------------------------------------------------------------===// 106 107 // Parse misexpect tolerance argument value. 108 // Valid option values are integers in the range [0, 100) 109 static Expected<std::optional<uint32_t>> parseToleranceOption(StringRef Arg) { 110 uint32_t Val; 111 if (Arg.getAsInteger(10, Val)) 112 return llvm::createStringError(llvm::inconvertibleErrorCode(), 113 "Not an integer: %s", Arg.data()); 114 return Val; 115 } 116 117 //===----------------------------------------------------------------------===// 118 // Initialization. 119 //===----------------------------------------------------------------------===// 120 121 template <class T> std::shared_ptr<T> make_shared_copy(const T &X) { 122 return std::make_shared<T>(X); 123 } 124 125 CompilerInvocationBase::CompilerInvocationBase() 126 : LangOpts(std::make_shared<LangOptions>()), 127 TargetOpts(std::make_shared<TargetOptions>()), 128 DiagnosticOpts(std::make_shared<DiagnosticOptions>()), 129 HSOpts(std::make_shared<HeaderSearchOptions>()), 130 PPOpts(std::make_shared<PreprocessorOptions>()), 131 AnalyzerOpts(std::make_shared<AnalyzerOptions>()), 132 MigratorOpts(std::make_shared<MigratorOptions>()), 133 APINotesOpts(std::make_shared<APINotesOptions>()), 134 CodeGenOpts(std::make_shared<CodeGenOptions>()), 135 FSOpts(std::make_shared<FileSystemOptions>()), 136 FrontendOpts(std::make_shared<FrontendOptions>()), 137 DependencyOutputOpts(std::make_shared<DependencyOutputOptions>()), 138 PreprocessorOutputOpts(std::make_shared<PreprocessorOutputOptions>()) {} 139 140 CompilerInvocationBase & 141 CompilerInvocationBase::deep_copy_assign(const CompilerInvocationBase &X) { 142 if (this != &X) { 143 LangOpts = make_shared_copy(X.getLangOpts()); 144 TargetOpts = make_shared_copy(X.getTargetOpts()); 145 DiagnosticOpts = make_shared_copy(X.getDiagnosticOpts()); 146 HSOpts = make_shared_copy(X.getHeaderSearchOpts()); 147 PPOpts = make_shared_copy(X.getPreprocessorOpts()); 148 AnalyzerOpts = make_shared_copy(X.getAnalyzerOpts()); 149 MigratorOpts = make_shared_copy(X.getMigratorOpts()); 150 APINotesOpts = make_shared_copy(X.getAPINotesOpts()); 151 CodeGenOpts = make_shared_copy(X.getCodeGenOpts()); 152 FSOpts = make_shared_copy(X.getFileSystemOpts()); 153 FrontendOpts = make_shared_copy(X.getFrontendOpts()); 154 DependencyOutputOpts = make_shared_copy(X.getDependencyOutputOpts()); 155 PreprocessorOutputOpts = make_shared_copy(X.getPreprocessorOutputOpts()); 156 } 157 return *this; 158 } 159 160 CompilerInvocationBase & 161 CompilerInvocationBase::shallow_copy_assign(const CompilerInvocationBase &X) { 162 if (this != &X) { 163 LangOpts = X.LangOpts; 164 TargetOpts = X.TargetOpts; 165 DiagnosticOpts = X.DiagnosticOpts; 166 HSOpts = X.HSOpts; 167 PPOpts = X.PPOpts; 168 AnalyzerOpts = X.AnalyzerOpts; 169 MigratorOpts = X.MigratorOpts; 170 APINotesOpts = X.APINotesOpts; 171 CodeGenOpts = X.CodeGenOpts; 172 FSOpts = X.FSOpts; 173 FrontendOpts = X.FrontendOpts; 174 DependencyOutputOpts = X.DependencyOutputOpts; 175 PreprocessorOutputOpts = X.PreprocessorOutputOpts; 176 } 177 return *this; 178 } 179 180 CompilerInvocation::CompilerInvocation(const CowCompilerInvocation &X) 181 : CompilerInvocationBase(EmptyConstructor{}) { 182 CompilerInvocationBase::deep_copy_assign(X); 183 } 184 185 CompilerInvocation & 186 CompilerInvocation::operator=(const CowCompilerInvocation &X) { 187 CompilerInvocationBase::deep_copy_assign(X); 188 return *this; 189 } 190 191 template <typename T> 192 T &ensureOwned(std::shared_ptr<T> &Storage) { 193 if (Storage.use_count() > 1) 194 Storage = std::make_shared<T>(*Storage); 195 return *Storage; 196 } 197 198 LangOptions &CowCompilerInvocation::getMutLangOpts() { 199 return ensureOwned(LangOpts); 200 } 201 202 TargetOptions &CowCompilerInvocation::getMutTargetOpts() { 203 return ensureOwned(TargetOpts); 204 } 205 206 DiagnosticOptions &CowCompilerInvocation::getMutDiagnosticOpts() { 207 return ensureOwned(DiagnosticOpts); 208 } 209 210 HeaderSearchOptions &CowCompilerInvocation::getMutHeaderSearchOpts() { 211 return ensureOwned(HSOpts); 212 } 213 214 PreprocessorOptions &CowCompilerInvocation::getMutPreprocessorOpts() { 215 return ensureOwned(PPOpts); 216 } 217 218 AnalyzerOptions &CowCompilerInvocation::getMutAnalyzerOpts() { 219 return ensureOwned(AnalyzerOpts); 220 } 221 222 MigratorOptions &CowCompilerInvocation::getMutMigratorOpts() { 223 return ensureOwned(MigratorOpts); 224 } 225 226 APINotesOptions &CowCompilerInvocation::getMutAPINotesOpts() { 227 return ensureOwned(APINotesOpts); 228 } 229 230 CodeGenOptions &CowCompilerInvocation::getMutCodeGenOpts() { 231 return ensureOwned(CodeGenOpts); 232 } 233 234 FileSystemOptions &CowCompilerInvocation::getMutFileSystemOpts() { 235 return ensureOwned(FSOpts); 236 } 237 238 FrontendOptions &CowCompilerInvocation::getMutFrontendOpts() { 239 return ensureOwned(FrontendOpts); 240 } 241 242 DependencyOutputOptions &CowCompilerInvocation::getMutDependencyOutputOpts() { 243 return ensureOwned(DependencyOutputOpts); 244 } 245 246 PreprocessorOutputOptions & 247 CowCompilerInvocation::getMutPreprocessorOutputOpts() { 248 return ensureOwned(PreprocessorOutputOpts); 249 } 250 251 //===----------------------------------------------------------------------===// 252 // Normalizers 253 //===----------------------------------------------------------------------===// 254 255 using ArgumentConsumer = CompilerInvocation::ArgumentConsumer; 256 257 #define OPTTABLE_STR_TABLE_CODE 258 #include "clang/Driver/Options.inc" 259 #undef OPTTABLE_STR_TABLE_CODE 260 261 static llvm::StringRef lookupStrInTable(unsigned Offset) { 262 return OptionStrTable[Offset]; 263 } 264 265 #define SIMPLE_ENUM_VALUE_TABLE 266 #include "clang/Driver/Options.inc" 267 #undef SIMPLE_ENUM_VALUE_TABLE 268 269 static std::optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 270 unsigned TableIndex, 271 const ArgList &Args, 272 DiagnosticsEngine &Diags) { 273 if (Args.hasArg(Opt)) 274 return true; 275 return std::nullopt; 276 } 277 278 static std::optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, 279 unsigned, 280 const ArgList &Args, 281 DiagnosticsEngine &) { 282 if (Args.hasArg(Opt)) 283 return false; 284 return std::nullopt; 285 } 286 287 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 288 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 289 /// unnecessary template instantiations and just ignore it with a variadic 290 /// argument. 291 static void denormalizeSimpleFlag(ArgumentConsumer Consumer, 292 unsigned SpellingOffset, Option::OptionClass, 293 unsigned, /*T*/...) { 294 Consumer(lookupStrInTable(SpellingOffset)); 295 } 296 static void denormalizeSimpleFlag(ArgumentConsumer Consumer, 297 const Twine &Spelling, Option::OptionClass, 298 unsigned, /*T*/...) { 299 Consumer(Spelling); 300 } 301 302 template <typename T> static constexpr bool is_uint64_t_convertible() { 303 return !std::is_same_v<T, uint64_t> && llvm::is_integral_or_enum<T>::value; 304 } 305 306 template <typename T, 307 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 308 static auto makeFlagToValueNormalizer(T Value) { 309 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 310 DiagnosticsEngine &) -> std::optional<T> { 311 if (Args.hasArg(Opt)) 312 return Value; 313 return std::nullopt; 314 }; 315 } 316 317 template <typename T, 318 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 319 static auto makeFlagToValueNormalizer(T Value) { 320 return makeFlagToValueNormalizer(uint64_t(Value)); 321 } 322 323 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 324 OptSpecifier OtherOpt) { 325 return [Value, OtherValue, 326 OtherOpt](OptSpecifier Opt, unsigned, const ArgList &Args, 327 DiagnosticsEngine &) -> std::optional<bool> { 328 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 329 return A->getOption().matches(Opt) ? Value : OtherValue; 330 } 331 return std::nullopt; 332 }; 333 } 334 335 static auto makeBooleanOptionDenormalizer(bool Value) { 336 return [Value](ArgumentConsumer Consumer, unsigned SpellingOffset, 337 Option::OptionClass, unsigned, bool KeyPath) { 338 if (KeyPath == Value) 339 Consumer(lookupStrInTable(SpellingOffset)); 340 }; 341 } 342 343 static void denormalizeStringImpl(ArgumentConsumer Consumer, 344 const Twine &Spelling, 345 Option::OptionClass OptClass, unsigned, 346 const Twine &Value) { 347 switch (OptClass) { 348 case Option::SeparateClass: 349 case Option::JoinedOrSeparateClass: 350 case Option::JoinedAndSeparateClass: 351 Consumer(Spelling); 352 Consumer(Value); 353 break; 354 case Option::JoinedClass: 355 case Option::CommaJoinedClass: 356 Consumer(Spelling + Value); 357 break; 358 default: 359 llvm_unreachable("Cannot denormalize an option with option class " 360 "incompatible with string denormalization."); 361 } 362 } 363 364 template <typename T> 365 static void 366 denormalizeString(ArgumentConsumer Consumer, unsigned SpellingOffset, 367 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 368 denormalizeStringImpl(Consumer, lookupStrInTable(SpellingOffset), OptClass, 369 TableIndex, Twine(Value)); 370 } 371 372 template <typename T> 373 static void denormalizeString(ArgumentConsumer Consumer, const Twine &Spelling, 374 Option::OptionClass OptClass, unsigned TableIndex, 375 T Value) { 376 denormalizeStringImpl(Consumer, Spelling, OptClass, TableIndex, Twine(Value)); 377 } 378 379 static std::optional<SimpleEnumValue> 380 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 381 for (int I = 0, E = Table.Size; I != E; ++I) 382 if (Name == Table.Table[I].Name) 383 return Table.Table[I]; 384 385 return std::nullopt; 386 } 387 388 static std::optional<SimpleEnumValue> 389 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 390 for (int I = 0, E = Table.Size; I != E; ++I) 391 if (Value == Table.Table[I].Value) 392 return Table.Table[I]; 393 394 return std::nullopt; 395 } 396 397 static std::optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 398 unsigned TableIndex, 399 const ArgList &Args, 400 DiagnosticsEngine &Diags) { 401 assert(TableIndex < SimpleEnumValueTablesSize); 402 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 403 404 auto *Arg = Args.getLastArg(Opt); 405 if (!Arg) 406 return std::nullopt; 407 408 StringRef ArgValue = Arg->getValue(); 409 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 410 return MaybeEnumVal->Value; 411 412 Diags.Report(diag::err_drv_invalid_value) 413 << Arg->getAsString(Args) << ArgValue; 414 return std::nullopt; 415 } 416 417 static void denormalizeSimpleEnumImpl(ArgumentConsumer Consumer, 418 unsigned SpellingOffset, 419 Option::OptionClass OptClass, 420 unsigned TableIndex, unsigned Value) { 421 assert(TableIndex < SimpleEnumValueTablesSize); 422 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 423 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 424 denormalizeString(Consumer, lookupStrInTable(SpellingOffset), OptClass, 425 TableIndex, MaybeEnumVal->Name); 426 } else { 427 llvm_unreachable("The simple enum value was not correctly defined in " 428 "the tablegen option description"); 429 } 430 } 431 432 template <typename T> 433 static void denormalizeSimpleEnum(ArgumentConsumer Consumer, 434 unsigned SpellingOffset, 435 Option::OptionClass OptClass, 436 unsigned TableIndex, T Value) { 437 return denormalizeSimpleEnumImpl(Consumer, SpellingOffset, OptClass, 438 TableIndex, static_cast<unsigned>(Value)); 439 } 440 441 static std::optional<std::string> normalizeString(OptSpecifier Opt, 442 int TableIndex, 443 const ArgList &Args, 444 DiagnosticsEngine &Diags) { 445 auto *Arg = Args.getLastArg(Opt); 446 if (!Arg) 447 return std::nullopt; 448 return std::string(Arg->getValue()); 449 } 450 451 template <typename IntTy> 452 static std::optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 453 const ArgList &Args, 454 DiagnosticsEngine &Diags) { 455 auto *Arg = Args.getLastArg(Opt); 456 if (!Arg) 457 return std::nullopt; 458 IntTy Res; 459 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 460 Diags.Report(diag::err_drv_invalid_int_value) 461 << Arg->getAsString(Args) << Arg->getValue(); 462 return std::nullopt; 463 } 464 return Res; 465 } 466 467 static std::optional<std::vector<std::string>> 468 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 469 DiagnosticsEngine &) { 470 return Args.getAllArgValues(Opt); 471 } 472 473 static void denormalizeStringVector(ArgumentConsumer Consumer, 474 unsigned SpellingOffset, 475 Option::OptionClass OptClass, 476 unsigned TableIndex, 477 const std::vector<std::string> &Values) { 478 switch (OptClass) { 479 case Option::CommaJoinedClass: { 480 std::string CommaJoinedValue; 481 if (!Values.empty()) { 482 CommaJoinedValue.append(Values.front()); 483 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 484 CommaJoinedValue.append(","); 485 CommaJoinedValue.append(Value); 486 } 487 } 488 denormalizeString(Consumer, SpellingOffset, 489 Option::OptionClass::JoinedClass, TableIndex, 490 CommaJoinedValue); 491 break; 492 } 493 case Option::JoinedClass: 494 case Option::SeparateClass: 495 case Option::JoinedOrSeparateClass: 496 for (const std::string &Value : Values) 497 denormalizeString(Consumer, SpellingOffset, OptClass, TableIndex, Value); 498 break; 499 default: 500 llvm_unreachable("Cannot denormalize an option with option class " 501 "incompatible with string vector denormalization."); 502 } 503 } 504 505 static std::optional<std::string> normalizeTriple(OptSpecifier Opt, 506 int TableIndex, 507 const ArgList &Args, 508 DiagnosticsEngine &Diags) { 509 auto *Arg = Args.getLastArg(Opt); 510 if (!Arg) 511 return std::nullopt; 512 return llvm::Triple::normalize(Arg->getValue()); 513 } 514 515 template <typename T, typename U> 516 static T mergeForwardValue(T KeyPath, U Value) { 517 return static_cast<T>(Value); 518 } 519 520 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 521 return KeyPath | Value; 522 } 523 524 template <typename T> static T extractForwardValue(T KeyPath) { 525 return KeyPath; 526 } 527 528 template <typename T, typename U, U Value> 529 static T extractMaskValue(T KeyPath) { 530 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 531 } 532 533 #define PARSE_OPTION_WITH_MARSHALLING( \ 534 ARGS, DIAGS, PREFIX_TYPE, SPELLING_OFFSET, ID, KIND, GROUP, ALIAS, \ 535 ALIASARGS, FLAGS, VISIBILITY, PARAM, HELPTEXT, HELPTEXTSFORVARIANTS, \ 536 METAVAR, VALUES, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 537 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, \ 538 TABLE_INDEX) \ 539 if ((VISIBILITY) & options::CC1Option) { \ 540 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 541 if (IMPLIED_CHECK) \ 542 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 543 if (SHOULD_PARSE) \ 544 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 545 KEYPATH = \ 546 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 547 } 548 549 // Capture the extracted value as a lambda argument to avoid potential issues 550 // with lifetime extension of the reference. 551 #define GENERATE_OPTION_WITH_MARSHALLING( \ 552 CONSUMER, PREFIX_TYPE, SPELLING_OFFSET, ID, KIND, GROUP, ALIAS, ALIASARGS, \ 553 FLAGS, VISIBILITY, PARAM, HELPTEXT, HELPTEXTSFORVARIANTS, METAVAR, VALUES, \ 554 SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, IMPLIED_CHECK, \ 555 IMPLIED_VALUE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX) \ 556 if ((VISIBILITY) & options::CC1Option) { \ 557 [&](const auto &Extracted) { \ 558 if (ALWAYS_EMIT || \ 559 (Extracted != \ 560 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 561 : (DEFAULT_VALUE)))) \ 562 DENORMALIZER(CONSUMER, SPELLING_OFFSET, Option::KIND##Class, \ 563 TABLE_INDEX, Extracted); \ 564 }(EXTRACTOR(KEYPATH)); \ 565 } 566 567 static StringRef GetInputKindName(InputKind IK); 568 569 static bool FixupInvocation(CompilerInvocation &Invocation, 570 DiagnosticsEngine &Diags, const ArgList &Args, 571 InputKind IK) { 572 unsigned NumErrorsBefore = Diags.getNumErrors(); 573 574 LangOptions &LangOpts = Invocation.getLangOpts(); 575 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 576 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 577 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 578 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 579 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 580 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 581 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 582 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 583 if (FrontendOpts.ShowStats) 584 CodeGenOpts.ClearASTBeforeBackend = false; 585 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 586 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 587 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 588 LangOpts.CurrentModule = LangOpts.ModuleName; 589 590 llvm::Triple T(TargetOpts.Triple); 591 llvm::Triple::ArchType Arch = T.getArch(); 592 593 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 594 CodeGenOpts.LargeDataThreshold = TargetOpts.LargeDataThreshold; 595 596 if (LangOpts.getExceptionHandling() != 597 LangOptions::ExceptionHandlingKind::None && 598 T.isWindowsMSVCEnvironment()) 599 Diags.Report(diag::err_fe_invalid_exception_model) 600 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 601 602 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 603 Diags.Report(diag::warn_c_kext); 604 605 if (LangOpts.NewAlignOverride && 606 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 607 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 608 Diags.Report(diag::err_fe_invalid_alignment) 609 << A->getAsString(Args) << A->getValue(); 610 LangOpts.NewAlignOverride = 0; 611 } 612 613 // The -f[no-]raw-string-literals option is only valid in C and in C++ 614 // standards before C++11. 615 if (LangOpts.CPlusPlus11) { 616 if (Args.hasArg(OPT_fraw_string_literals, OPT_fno_raw_string_literals)) { 617 Args.claimAllArgs(OPT_fraw_string_literals, OPT_fno_raw_string_literals); 618 Diags.Report(diag::warn_drv_fraw_string_literals_in_cxx11) 619 << bool(LangOpts.RawStringLiterals); 620 } 621 622 // Do not allow disabling raw string literals in C++11 or later. 623 LangOpts.RawStringLiterals = true; 624 } 625 626 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 627 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 628 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 629 << "-fsycl-is-host"; 630 631 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 632 Diags.Report(diag::err_drv_argument_not_allowed_with) 633 << "-fgnu89-inline" << GetInputKindName(IK); 634 635 if (Args.hasArg(OPT_hlsl_entrypoint) && !LangOpts.HLSL) 636 Diags.Report(diag::err_drv_argument_not_allowed_with) 637 << "-hlsl-entry" << GetInputKindName(IK); 638 639 if (Args.hasArg(OPT_fdx_rootsignature_version) && !LangOpts.HLSL) 640 Diags.Report(diag::err_drv_argument_not_allowed_with) 641 << "-fdx-rootsignature-version" << GetInputKindName(IK); 642 643 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 644 Diags.Report(diag::warn_ignored_hip_only_option) 645 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 646 647 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 648 Diags.Report(diag::warn_ignored_hip_only_option) 649 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 650 651 // When these options are used, the compiler is allowed to apply 652 // optimizations that may affect the final result. For example 653 // (x+y)+z is transformed to x+(y+z) but may not give the same 654 // final result; it's not value safe. 655 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF 656 // or NaN. Final result may then differ. An error is issued when the eval 657 // method is set with one of these options. 658 if (Args.hasArg(OPT_ffp_eval_method_EQ)) { 659 if (LangOpts.ApproxFunc) 660 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 0; 661 if (LangOpts.AllowFPReassoc) 662 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 1; 663 if (LangOpts.AllowRecip) 664 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 2; 665 } 666 667 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 668 // This option should be deprecated for CL > 1.0 because 669 // this option was added for compatibility with OpenCL 1.0. 670 if (Args.getLastArg(OPT_cl_strict_aliasing) && 671 (LangOpts.getOpenCLCompatibleVersion() > 100)) 672 Diags.Report(diag::warn_option_invalid_ocl_version) 673 << LangOpts.getOpenCLVersionString() 674 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 675 676 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 677 auto DefaultCC = LangOpts.getDefaultCallingConv(); 678 679 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 680 DefaultCC == LangOptions::DCC_StdCall) && 681 Arch != llvm::Triple::x86; 682 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 683 DefaultCC == LangOptions::DCC_RegCall) && 684 !T.isX86(); 685 emitError |= DefaultCC == LangOptions::DCC_RtdCall && Arch != llvm::Triple::m68k; 686 if (emitError) 687 Diags.Report(diag::err_drv_argument_not_allowed_with) 688 << A->getSpelling() << T.getTriple(); 689 } 690 691 return Diags.getNumErrors() == NumErrorsBefore; 692 } 693 694 //===----------------------------------------------------------------------===// 695 // Deserialization (from args) 696 //===----------------------------------------------------------------------===// 697 698 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 699 DiagnosticsEngine &Diags) { 700 unsigned DefaultOpt = 0; 701 if ((IK.getLanguage() == Language::OpenCL || 702 IK.getLanguage() == Language::OpenCLCXX) && 703 !Args.hasArg(OPT_cl_opt_disable)) 704 DefaultOpt = 2; 705 706 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 707 if (A->getOption().matches(options::OPT_O0)) 708 return 0; 709 710 if (A->getOption().matches(options::OPT_Ofast)) 711 return 3; 712 713 assert(A->getOption().matches(options::OPT_O)); 714 715 StringRef S(A->getValue()); 716 if (S == "s" || S == "z") 717 return 2; 718 719 if (S == "g") 720 return 1; 721 722 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 723 } 724 725 return DefaultOpt; 726 } 727 728 static unsigned getOptimizationLevelSize(ArgList &Args) { 729 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 730 if (A->getOption().matches(options::OPT_O)) { 731 switch (A->getValue()[0]) { 732 default: 733 return 0; 734 case 's': 735 return 1; 736 case 'z': 737 return 2; 738 } 739 } 740 } 741 return 0; 742 } 743 744 static void GenerateArg(ArgumentConsumer Consumer, 745 llvm::opt::OptSpecifier OptSpecifier) { 746 Option Opt = getDriverOptTable().getOption(OptSpecifier); 747 denormalizeSimpleFlag(Consumer, Opt.getPrefixedName(), 748 Option::OptionClass::FlagClass, 0); 749 } 750 751 static void GenerateArg(ArgumentConsumer Consumer, 752 llvm::opt::OptSpecifier OptSpecifier, 753 const Twine &Value) { 754 Option Opt = getDriverOptTable().getOption(OptSpecifier); 755 denormalizeString(Consumer, Opt.getPrefixedName(), Opt.getKind(), 0, Value); 756 } 757 758 // Parse command line arguments into CompilerInvocation. 759 using ParseFn = 760 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 761 DiagnosticsEngine &, const char *)>; 762 763 // Generate command line arguments from CompilerInvocation. 764 using GenerateFn = llvm::function_ref<void( 765 CompilerInvocation &, SmallVectorImpl<const char *> &, 766 CompilerInvocation::StringAllocator)>; 767 768 /// May perform round-trip of command line arguments. By default, the round-trip 769 /// is enabled in assert builds. This can be overwritten at run-time via the 770 /// "-round-trip-args" and "-no-round-trip-args" command line flags, or via the 771 /// ForceRoundTrip parameter. 772 /// 773 /// During round-trip, the command line arguments are parsed into a dummy 774 /// CompilerInvocation, which is used to generate the command line arguments 775 /// again. The real CompilerInvocation is then created by parsing the generated 776 /// arguments, not the original ones. This (in combination with tests covering 777 /// argument behavior) ensures the generated command line is complete (doesn't 778 /// drop/mangle any arguments). 779 /// 780 /// Finally, we check the command line that was used to create the real 781 /// CompilerInvocation instance. By default, we compare it to the command line 782 /// the real CompilerInvocation generates. This checks whether the generator is 783 /// deterministic. If \p CheckAgainstOriginalInvocation is enabled, we instead 784 /// compare it to the original command line to verify the original command-line 785 /// was canonical and can round-trip exactly. 786 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 787 CompilerInvocation &RealInvocation, 788 CompilerInvocation &DummyInvocation, 789 ArrayRef<const char *> CommandLineArgs, 790 DiagnosticsEngine &Diags, const char *Argv0, 791 bool CheckAgainstOriginalInvocation = false, 792 bool ForceRoundTrip = false) { 793 #ifndef NDEBUG 794 bool DoRoundTripDefault = true; 795 #else 796 bool DoRoundTripDefault = false; 797 #endif 798 799 bool DoRoundTrip = DoRoundTripDefault; 800 if (ForceRoundTrip) { 801 DoRoundTrip = true; 802 } else { 803 for (const auto *Arg : CommandLineArgs) { 804 if (Arg == StringRef("-round-trip-args")) 805 DoRoundTrip = true; 806 if (Arg == StringRef("-no-round-trip-args")) 807 DoRoundTrip = false; 808 } 809 } 810 811 // If round-trip was not requested, simply run the parser with the real 812 // invocation diagnostics. 813 if (!DoRoundTrip) 814 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 815 816 // Serializes quoted (and potentially escaped) arguments. 817 auto SerializeArgs = [](ArrayRef<const char *> Args) { 818 std::string Buffer; 819 llvm::raw_string_ostream OS(Buffer); 820 for (const char *Arg : Args) { 821 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 822 OS << ' '; 823 } 824 return Buffer; 825 }; 826 827 // Setup a dummy DiagnosticsEngine. 828 DiagnosticOptions DummyDiagOpts; 829 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), DummyDiagOpts); 830 DummyDiags.setClient(new TextDiagnosticBuffer()); 831 832 // Run the first parse on the original arguments with the dummy invocation and 833 // diagnostics. 834 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 835 DummyDiags.getNumWarnings() != 0) { 836 // If the first parse did not succeed, it must be user mistake (invalid 837 // command line arguments). We won't be able to generate arguments that 838 // would reproduce the same result. Let's fail again with the real 839 // invocation and diagnostics, so all side-effects of parsing are visible. 840 unsigned NumWarningsBefore = Diags.getNumWarnings(); 841 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 842 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 843 return Success; 844 845 // Parse with original options and diagnostics succeeded even though it 846 // shouldn't have. Something is off. 847 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 848 Diags.Report(diag::note_cc1_round_trip_original) 849 << SerializeArgs(CommandLineArgs); 850 return false; 851 } 852 853 // Setup string allocator. 854 llvm::BumpPtrAllocator Alloc; 855 llvm::StringSaver StringPool(Alloc); 856 auto SA = [&StringPool](const Twine &Arg) { 857 return StringPool.save(Arg).data(); 858 }; 859 860 // Generate arguments from the dummy invocation. If Generate is the 861 // inverse of Parse, the newly generated arguments must have the same 862 // semantics as the original. 863 SmallVector<const char *> GeneratedArgs; 864 Generate(DummyInvocation, GeneratedArgs, SA); 865 866 // Run the second parse, now on the generated arguments, and with the real 867 // invocation and diagnostics. The result is what we will end up using for the 868 // rest of compilation, so if Generate is not inverse of Parse, something down 869 // the line will break. 870 bool Success2 = Parse(RealInvocation, GeneratedArgs, Diags, Argv0); 871 872 // The first parse on original arguments succeeded, but second parse of 873 // generated arguments failed. Something must be wrong with the generator. 874 if (!Success2) { 875 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 876 Diags.Report(diag::note_cc1_round_trip_generated) 877 << 1 << SerializeArgs(GeneratedArgs); 878 return false; 879 } 880 881 SmallVector<const char *> ComparisonArgs; 882 if (CheckAgainstOriginalInvocation) 883 // Compare against original arguments. 884 ComparisonArgs.assign(CommandLineArgs.begin(), CommandLineArgs.end()); 885 else 886 // Generate arguments again, this time from the options we will end up using 887 // for the rest of the compilation. 888 Generate(RealInvocation, ComparisonArgs, SA); 889 890 // Compares two lists of arguments. 891 auto Equal = [](const ArrayRef<const char *> A, 892 const ArrayRef<const char *> B) { 893 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 894 [](const char *AElem, const char *BElem) { 895 return StringRef(AElem) == StringRef(BElem); 896 }); 897 }; 898 899 // If we generated different arguments from what we assume are two 900 // semantically equivalent CompilerInvocations, the Generate function may 901 // be non-deterministic. 902 if (!Equal(GeneratedArgs, ComparisonArgs)) { 903 Diags.Report(diag::err_cc1_round_trip_mismatch); 904 Diags.Report(diag::note_cc1_round_trip_generated) 905 << 1 << SerializeArgs(GeneratedArgs); 906 Diags.Report(diag::note_cc1_round_trip_generated) 907 << 2 << SerializeArgs(ComparisonArgs); 908 return false; 909 } 910 911 Diags.Report(diag::remark_cc1_round_trip_generated) 912 << 1 << SerializeArgs(GeneratedArgs); 913 Diags.Report(diag::remark_cc1_round_trip_generated) 914 << 2 << SerializeArgs(ComparisonArgs); 915 916 return Success2; 917 } 918 919 bool CompilerInvocation::checkCC1RoundTrip(ArrayRef<const char *> Args, 920 DiagnosticsEngine &Diags, 921 const char *Argv0) { 922 CompilerInvocation DummyInvocation1, DummyInvocation2; 923 return RoundTrip( 924 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 925 DiagnosticsEngine &Diags, const char *Argv0) { 926 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 927 }, 928 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 929 StringAllocator SA) { 930 Args.push_back("-cc1"); 931 Invocation.generateCC1CommandLine(Args, SA); 932 }, 933 DummyInvocation1, DummyInvocation2, Args, Diags, Argv0, 934 /*CheckAgainstOriginalInvocation=*/true, /*ForceRoundTrip=*/true); 935 } 936 937 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 938 OptSpecifier GroupWithValue, 939 std::vector<std::string> &Diagnostics) { 940 for (auto *A : Args.filtered(Group)) { 941 if (A->getOption().getKind() == Option::FlagClass) { 942 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 943 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 944 Diagnostics.push_back( 945 std::string(A->getOption().getName().drop_front(1))); 946 } else if (A->getOption().matches(GroupWithValue)) { 947 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 948 // group. Add only the group name to the diagnostics. 949 Diagnostics.push_back( 950 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 951 } else { 952 // Otherwise, add its value (for OPT_W_Joined and similar). 953 Diagnostics.push_back(A->getValue()); 954 } 955 } 956 } 957 958 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 959 // it won't verify the input. 960 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 961 DiagnosticsEngine *Diags); 962 963 static void getAllNoBuiltinFuncValues(ArgList &Args, 964 std::vector<std::string> &Funcs) { 965 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 966 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 967 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 968 } 969 970 static void GenerateAnalyzerArgs(const AnalyzerOptions &Opts, 971 ArgumentConsumer Consumer) { 972 const AnalyzerOptions *AnalyzerOpts = &Opts; 973 974 #define ANALYZER_OPTION_WITH_MARSHALLING(...) \ 975 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 976 #include "clang/Driver/Options.inc" 977 #undef ANALYZER_OPTION_WITH_MARSHALLING 978 979 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 980 switch (Opts.AnalysisConstraintsOpt) { 981 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 982 case NAME##Model: \ 983 GenerateArg(Consumer, OPT_analyzer_constraints, CMDFLAG); \ 984 break; 985 #include "clang/StaticAnalyzer/Core/Analyses.def" 986 default: 987 llvm_unreachable("Tried to generate unknown analysis constraint."); 988 } 989 } 990 991 if (Opts.AnalysisDiagOpt != PD_HTML) { 992 switch (Opts.AnalysisDiagOpt) { 993 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 994 case PD_##NAME: \ 995 GenerateArg(Consumer, OPT_analyzer_output, CMDFLAG); \ 996 break; 997 #include "clang/StaticAnalyzer/Core/Analyses.def" 998 default: 999 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 1000 } 1001 } 1002 1003 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 1004 switch (Opts.AnalysisPurgeOpt) { 1005 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 1006 case NAME: \ 1007 GenerateArg(Consumer, OPT_analyzer_purge, CMDFLAG); \ 1008 break; 1009 #include "clang/StaticAnalyzer/Core/Analyses.def" 1010 default: 1011 llvm_unreachable("Tried to generate unknown analysis purge mode."); 1012 } 1013 } 1014 1015 if (Opts.InliningMode != NoRedundancy) { 1016 switch (Opts.InliningMode) { 1017 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 1018 case NAME: \ 1019 GenerateArg(Consumer, OPT_analyzer_inlining_mode, CMDFLAG); \ 1020 break; 1021 #include "clang/StaticAnalyzer/Core/Analyses.def" 1022 default: 1023 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 1024 } 1025 } 1026 1027 for (const auto &CP : Opts.CheckersAndPackages) { 1028 OptSpecifier Opt = 1029 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 1030 GenerateArg(Consumer, Opt, CP.first); 1031 } 1032 1033 AnalyzerOptions ConfigOpts; 1034 parseAnalyzerConfigs(ConfigOpts, nullptr); 1035 1036 // Sort options by key to avoid relying on StringMap iteration order. 1037 SmallVector<std::pair<StringRef, StringRef>, 4> SortedConfigOpts; 1038 for (const auto &C : Opts.Config) 1039 SortedConfigOpts.emplace_back(C.getKey(), C.getValue()); 1040 llvm::sort(SortedConfigOpts, llvm::less_first()); 1041 1042 for (const auto &[Key, Value] : SortedConfigOpts) { 1043 // Don't generate anything that came from parseAnalyzerConfigs. It would be 1044 // redundant and may not be valid on the command line. 1045 auto Entry = ConfigOpts.Config.find(Key); 1046 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == Value) 1047 continue; 1048 1049 GenerateArg(Consumer, OPT_analyzer_config, Key + "=" + Value); 1050 } 1051 1052 // Nothing to generate for FullCompilerInvocation. 1053 } 1054 1055 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 1056 DiagnosticsEngine &Diags) { 1057 unsigned NumErrorsBefore = Diags.getNumErrors(); 1058 1059 AnalyzerOptions *AnalyzerOpts = &Opts; 1060 1061 #define ANALYZER_OPTION_WITH_MARSHALLING(...) \ 1062 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 1063 #include "clang/Driver/Options.inc" 1064 #undef ANALYZER_OPTION_WITH_MARSHALLING 1065 1066 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 1067 StringRef Name = A->getValue(); 1068 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 1069 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 1070 .Case(CMDFLAG, NAME##Model) 1071 #include "clang/StaticAnalyzer/Core/Analyses.def" 1072 .Default(NumConstraints); 1073 if (Value == NumConstraints) { 1074 Diags.Report(diag::err_drv_invalid_value) 1075 << A->getAsString(Args) << Name; 1076 } else { 1077 #ifndef LLVM_WITH_Z3 1078 if (Value == AnalysisConstraints::Z3ConstraintsModel) { 1079 Diags.Report(diag::err_analyzer_not_built_with_z3); 1080 } 1081 #endif // LLVM_WITH_Z3 1082 Opts.AnalysisConstraintsOpt = Value; 1083 } 1084 } 1085 1086 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 1087 StringRef Name = A->getValue(); 1088 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 1089 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 1090 .Case(CMDFLAG, PD_##NAME) 1091 #include "clang/StaticAnalyzer/Core/Analyses.def" 1092 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 1093 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 1094 Diags.Report(diag::err_drv_invalid_value) 1095 << A->getAsString(Args) << Name; 1096 } else { 1097 Opts.AnalysisDiagOpt = Value; 1098 } 1099 } 1100 1101 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 1102 StringRef Name = A->getValue(); 1103 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 1104 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 1105 .Case(CMDFLAG, NAME) 1106 #include "clang/StaticAnalyzer/Core/Analyses.def" 1107 .Default(NumPurgeModes); 1108 if (Value == NumPurgeModes) { 1109 Diags.Report(diag::err_drv_invalid_value) 1110 << A->getAsString(Args) << Name; 1111 } else { 1112 Opts.AnalysisPurgeOpt = Value; 1113 } 1114 } 1115 1116 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 1117 StringRef Name = A->getValue(); 1118 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 1119 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 1120 .Case(CMDFLAG, NAME) 1121 #include "clang/StaticAnalyzer/Core/Analyses.def" 1122 .Default(NumInliningModes); 1123 if (Value == NumInliningModes) { 1124 Diags.Report(diag::err_drv_invalid_value) 1125 << A->getAsString(Args) << Name; 1126 } else { 1127 Opts.InliningMode = Value; 1128 } 1129 } 1130 1131 Opts.CheckersAndPackages.clear(); 1132 for (const Arg *A : 1133 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 1134 A->claim(); 1135 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 1136 // We can have a list of comma separated checker names, e.g: 1137 // '-analyzer-checker=cocoa,unix' 1138 StringRef CheckerAndPackageList = A->getValue(); 1139 SmallVector<StringRef, 16> CheckersAndPackages; 1140 CheckerAndPackageList.split(CheckersAndPackages, ","); 1141 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 1142 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 1143 IsEnabled); 1144 } 1145 1146 // Go through the analyzer configuration options. 1147 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 1148 1149 // We can have a list of comma separated config names, e.g: 1150 // '-analyzer-config key1=val1,key2=val2' 1151 StringRef configList = A->getValue(); 1152 SmallVector<StringRef, 4> configVals; 1153 configList.split(configVals, ","); 1154 for (const auto &configVal : configVals) { 1155 StringRef key, val; 1156 std::tie(key, val) = configVal.split("="); 1157 if (val.empty()) { 1158 Diags.Report(SourceLocation(), 1159 diag::err_analyzer_config_no_value) << configVal; 1160 break; 1161 } 1162 if (val.contains('=')) { 1163 Diags.Report(SourceLocation(), 1164 diag::err_analyzer_config_multiple_values) 1165 << configVal; 1166 break; 1167 } 1168 1169 // TODO: Check checker options too, possibly in CheckerRegistry. 1170 // Leave unknown non-checker configs unclaimed. 1171 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1172 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1173 Diags.Report(diag::err_analyzer_config_unknown) << key; 1174 continue; 1175 } 1176 1177 A->claim(); 1178 Opts.Config[key] = std::string(val); 1179 } 1180 } 1181 1182 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1183 parseAnalyzerConfigs(Opts, &Diags); 1184 else 1185 parseAnalyzerConfigs(Opts, nullptr); 1186 1187 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1188 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1189 if (i != 0) 1190 os << " "; 1191 os << Args.getArgString(i); 1192 } 1193 1194 return Diags.getNumErrors() == NumErrorsBefore; 1195 } 1196 1197 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1198 StringRef OptionName, StringRef DefaultVal) { 1199 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1200 } 1201 1202 static void initOption(AnalyzerOptions::ConfigTable &Config, 1203 DiagnosticsEngine *Diags, 1204 StringRef &OptionField, StringRef Name, 1205 StringRef DefaultVal) { 1206 // String options may be known to invalid (e.g. if the expected string is a 1207 // file name, but the file does not exist), those will have to be checked in 1208 // parseConfigs. 1209 OptionField = getStringOption(Config, Name, DefaultVal); 1210 } 1211 1212 static void initOption(AnalyzerOptions::ConfigTable &Config, 1213 DiagnosticsEngine *Diags, 1214 bool &OptionField, StringRef Name, bool DefaultVal) { 1215 auto PossiblyInvalidVal = 1216 llvm::StringSwitch<std::optional<bool>>( 1217 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1218 .Case("true", true) 1219 .Case("false", false) 1220 .Default(std::nullopt); 1221 1222 if (!PossiblyInvalidVal) { 1223 if (Diags) 1224 Diags->Report(diag::err_analyzer_config_invalid_input) 1225 << Name << "a boolean"; 1226 else 1227 OptionField = DefaultVal; 1228 } else 1229 OptionField = *PossiblyInvalidVal; 1230 } 1231 1232 static void initOption(AnalyzerOptions::ConfigTable &Config, 1233 DiagnosticsEngine *Diags, 1234 unsigned &OptionField, StringRef Name, 1235 unsigned DefaultVal) { 1236 1237 OptionField = DefaultVal; 1238 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1239 .getAsInteger(0, OptionField); 1240 if (Diags && HasFailed) 1241 Diags->Report(diag::err_analyzer_config_invalid_input) 1242 << Name << "an unsigned"; 1243 } 1244 1245 static void initOption(AnalyzerOptions::ConfigTable &Config, 1246 DiagnosticsEngine *Diags, 1247 PositiveAnalyzerOption &OptionField, StringRef Name, 1248 unsigned DefaultVal) { 1249 auto Parsed = PositiveAnalyzerOption::create( 1250 getStringOption(Config, Name, std::to_string(DefaultVal))); 1251 if (Parsed.has_value()) { 1252 OptionField = Parsed.value(); 1253 return; 1254 } 1255 if (Diags && !Parsed.has_value()) 1256 Diags->Report(diag::err_analyzer_config_invalid_input) 1257 << Name << "a positive"; 1258 1259 OptionField = DefaultVal; 1260 } 1261 1262 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1263 DiagnosticsEngine *Diags) { 1264 // TODO: There's no need to store the entire configtable, it'd be plenty 1265 // enough to store checker options. 1266 1267 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1268 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1269 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...) 1270 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1271 1272 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep"); 1273 const bool InShallowMode = AnOpts.UserMode == "shallow"; 1274 1275 #define ANALYZER_OPTION(...) 1276 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1277 SHALLOW_VAL, DEEP_VAL) \ 1278 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \ 1279 InShallowMode ? SHALLOW_VAL : DEEP_VAL); 1280 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1281 1282 // At this point, AnalyzerOptions is configured. Let's validate some options. 1283 1284 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1285 // The current approach only validates the registered checkers which does not 1286 // contain the runtime enabled checkers and optimally we would validate both. 1287 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1288 std::vector<StringRef> Checkers = 1289 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1290 std::vector<StringRef> Packages = 1291 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1292 1293 SmallVector<StringRef, 16> CheckersAndPackages; 1294 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1295 1296 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1297 if (Diags) { 1298 bool IsChecker = CheckerOrPackage.contains('.'); 1299 bool IsValidName = IsChecker 1300 ? llvm::is_contained(Checkers, CheckerOrPackage) 1301 : llvm::is_contained(Packages, CheckerOrPackage); 1302 1303 if (!IsValidName) 1304 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1305 << CheckerOrPackage; 1306 } 1307 1308 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1309 } 1310 } 1311 1312 if (!Diags) 1313 return; 1314 1315 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1316 Diags->Report(diag::err_analyzer_config_invalid_input) 1317 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1318 1319 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1320 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1321 << "a filename"; 1322 1323 if (!AnOpts.ModelPath.empty() && 1324 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1325 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1326 << "a filename"; 1327 } 1328 1329 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1330 static void 1331 GenerateOptimizationRemark(ArgumentConsumer Consumer, OptSpecifier OptEQ, 1332 StringRef Name, 1333 const CodeGenOptions::OptRemark &Remark) { 1334 if (Remark.hasValidPattern()) { 1335 GenerateArg(Consumer, OptEQ, Remark.Pattern); 1336 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1337 GenerateArg(Consumer, OPT_R_Joined, Name); 1338 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1339 GenerateArg(Consumer, OPT_R_Joined, StringRef("no-") + Name); 1340 } 1341 } 1342 1343 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1344 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1345 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1346 static CodeGenOptions::OptRemark 1347 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1348 OptSpecifier OptEQ, StringRef Name) { 1349 CodeGenOptions::OptRemark Result; 1350 1351 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1352 StringRef Pattern) { 1353 Result.Pattern = Pattern.str(); 1354 1355 std::string RegexError; 1356 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1357 if (!Result.Regex->isValid(RegexError)) { 1358 Diags.Report(diag::err_drv_optimization_remark_pattern) 1359 << RegexError << A->getAsString(Args); 1360 return false; 1361 } 1362 1363 return true; 1364 }; 1365 1366 for (Arg *A : Args) { 1367 if (A->getOption().matches(OPT_R_Joined)) { 1368 StringRef Value = A->getValue(); 1369 1370 if (Value == Name) 1371 Result.Kind = CodeGenOptions::RK_Enabled; 1372 else if (Value == "everything") 1373 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1374 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1375 Result.Kind = CodeGenOptions::RK_Disabled; 1376 else if (Value == "no-everything") 1377 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1378 else 1379 continue; 1380 1381 if (Result.Kind == CodeGenOptions::RK_Disabled || 1382 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1383 Result.Pattern = ""; 1384 Result.Regex = nullptr; 1385 } else { 1386 InitializeResultPattern(A, ".*"); 1387 } 1388 } else if (A->getOption().matches(OptEQ)) { 1389 Result.Kind = CodeGenOptions::RK_WithPattern; 1390 if (!InitializeResultPattern(A, A->getValue())) 1391 return CodeGenOptions::OptRemark(); 1392 } 1393 } 1394 1395 return Result; 1396 } 1397 1398 static bool parseDiagnosticLevelMask(StringRef FlagName, 1399 const std::vector<std::string> &Levels, 1400 DiagnosticsEngine &Diags, 1401 DiagnosticLevelMask &M) { 1402 bool Success = true; 1403 for (const auto &Level : Levels) { 1404 DiagnosticLevelMask const PM = 1405 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1406 .Case("note", DiagnosticLevelMask::Note) 1407 .Case("remark", DiagnosticLevelMask::Remark) 1408 .Case("warning", DiagnosticLevelMask::Warning) 1409 .Case("error", DiagnosticLevelMask::Error) 1410 .Default(DiagnosticLevelMask::None); 1411 if (PM == DiagnosticLevelMask::None) { 1412 Success = false; 1413 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1414 } 1415 M = M | PM; 1416 } 1417 return Success; 1418 } 1419 1420 static void parseSanitizerKinds(StringRef FlagName, 1421 const std::vector<std::string> &Sanitizers, 1422 DiagnosticsEngine &Diags, SanitizerSet &S) { 1423 for (const auto &Sanitizer : Sanitizers) { 1424 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1425 if (K == SanitizerMask()) 1426 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1427 else 1428 S.set(K, true); 1429 } 1430 } 1431 1432 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1433 SmallVector<StringRef, 4> Values; 1434 serializeSanitizerSet(S, Values); 1435 return Values; 1436 } 1437 1438 static SanitizerMaskCutoffs 1439 parseSanitizerWeightedKinds(StringRef FlagName, 1440 const std::vector<std::string> &Sanitizers, 1441 DiagnosticsEngine &Diags) { 1442 SanitizerMaskCutoffs Cutoffs; 1443 for (const auto &Sanitizer : Sanitizers) { 1444 if (!parseSanitizerWeightedValue(Sanitizer, /*AllowGroups=*/false, Cutoffs)) 1445 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1446 } 1447 return Cutoffs; 1448 } 1449 1450 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1451 ArgList &Args, DiagnosticsEngine &D, 1452 XRayInstrSet &S) { 1453 llvm::SmallVector<StringRef, 2> BundleParts; 1454 llvm::SplitString(Bundle, BundleParts, ","); 1455 for (const auto &B : BundleParts) { 1456 auto Mask = parseXRayInstrValue(B); 1457 if (Mask == XRayInstrKind::None) 1458 if (B != "none") 1459 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1460 else 1461 S.Mask = Mask; 1462 else if (Mask == XRayInstrKind::All) 1463 S.Mask = Mask; 1464 else 1465 S.set(Mask, true); 1466 } 1467 } 1468 1469 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1470 llvm::SmallVector<StringRef, 2> BundleParts; 1471 serializeXRayInstrValue(S, BundleParts); 1472 std::string Buffer; 1473 llvm::raw_string_ostream OS(Buffer); 1474 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1475 return Buffer; 1476 } 1477 1478 // Set the profile kind using fprofile-instrument-use-path. 1479 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1480 const Twine &ProfileName, 1481 llvm::vfs::FileSystem &FS, 1482 DiagnosticsEngine &Diags) { 1483 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName, FS); 1484 if (auto E = ReaderOrErr.takeError()) { 1485 unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, 1486 "Error in reading profile %0: %1"); 1487 llvm::handleAllErrors(std::move(E), [&](const llvm::ErrorInfoBase &EI) { 1488 Diags.Report(DiagID) << ProfileName.str() << EI.message(); 1489 }); 1490 return; 1491 } 1492 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1493 std::move(ReaderOrErr.get()); 1494 // Currently memprof profiles are only added at the IR level. Mark the profile 1495 // type as IR in that case as well and the subsequent matching needs to detect 1496 // which is available (might be one or both). 1497 if (PGOReader->isIRLevelProfile() || PGOReader->hasMemoryProfile()) { 1498 if (PGOReader->hasCSIRLevelProfile()) 1499 Opts.setProfileUse(llvm::driver::ProfileInstrKind::ProfileCSIRInstr); 1500 else 1501 Opts.setProfileUse(llvm::driver::ProfileInstrKind::ProfileIRInstr); 1502 } else 1503 Opts.setProfileUse(llvm::driver::ProfileInstrKind::ProfileClangInstr); 1504 } 1505 1506 void CompilerInvocation::setDefaultPointerAuthOptions( 1507 PointerAuthOptions &Opts, const LangOptions &LangOpts, 1508 const llvm::Triple &Triple) { 1509 assert(Triple.getArch() == llvm::Triple::aarch64); 1510 if (LangOpts.PointerAuthCalls) { 1511 using Key = PointerAuthSchema::ARM8_3Key; 1512 using Discrimination = PointerAuthSchema::Discrimination; 1513 // If you change anything here, be sure to update <ptrauth.h>. 1514 Opts.FunctionPointers = PointerAuthSchema( 1515 Key::ASIA, false, 1516 LangOpts.PointerAuthFunctionTypeDiscrimination ? Discrimination::Type 1517 : Discrimination::None); 1518 1519 Opts.CXXVTablePointers = PointerAuthSchema( 1520 Key::ASDA, LangOpts.PointerAuthVTPtrAddressDiscrimination, 1521 LangOpts.PointerAuthVTPtrTypeDiscrimination ? Discrimination::Type 1522 : Discrimination::None); 1523 1524 if (LangOpts.PointerAuthTypeInfoVTPtrDiscrimination) 1525 Opts.CXXTypeInfoVTablePointer = 1526 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant, 1527 StdTypeInfoVTablePointerConstantDiscrimination); 1528 else 1529 Opts.CXXTypeInfoVTablePointer = 1530 PointerAuthSchema(Key::ASDA, false, Discrimination::None); 1531 1532 Opts.CXXVTTVTablePointers = 1533 PointerAuthSchema(Key::ASDA, false, Discrimination::None); 1534 Opts.CXXVirtualFunctionPointers = Opts.CXXVirtualVariadicFunctionPointers = 1535 PointerAuthSchema(Key::ASIA, true, Discrimination::Decl); 1536 Opts.CXXMemberFunctionPointers = 1537 PointerAuthSchema(Key::ASIA, false, Discrimination::Type); 1538 1539 if (LangOpts.PointerAuthInitFini) { 1540 Opts.InitFiniPointers = PointerAuthSchema( 1541 Key::ASIA, LangOpts.PointerAuthInitFiniAddressDiscrimination, 1542 Discrimination::Constant, InitFiniPointerConstantDiscriminator); 1543 } 1544 1545 Opts.BlockInvocationFunctionPointers = 1546 PointerAuthSchema(Key::ASIA, true, Discrimination::None); 1547 Opts.BlockHelperFunctionPointers = 1548 PointerAuthSchema(Key::ASIA, true, Discrimination::None); 1549 Opts.BlockByrefHelperFunctionPointers = 1550 PointerAuthSchema(Key::ASIA, true, Discrimination::None); 1551 if (LangOpts.PointerAuthBlockDescriptorPointers) 1552 Opts.BlockDescriptorPointers = 1553 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant, 1554 BlockDescriptorConstantDiscriminator); 1555 1556 Opts.ObjCMethodListFunctionPointers = 1557 PointerAuthSchema(Key::ASIA, true, Discrimination::None); 1558 Opts.ObjCMethodListPointer = 1559 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant, 1560 MethodListPointerConstantDiscriminator); 1561 if (LangOpts.PointerAuthObjcIsa) { 1562 Opts.ObjCIsaPointers = 1563 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant, 1564 IsaPointerConstantDiscriminator); 1565 Opts.ObjCSuperPointers = 1566 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant, 1567 SuperPointerConstantDiscriminator); 1568 } 1569 1570 if (LangOpts.PointerAuthObjcClassROPointers) 1571 Opts.ObjCClassROPointers = 1572 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant, 1573 ClassROConstantDiscriminator); 1574 } 1575 Opts.ReturnAddresses = LangOpts.PointerAuthReturns; 1576 Opts.AuthTraps = LangOpts.PointerAuthAuthTraps; 1577 Opts.IndirectGotos = LangOpts.PointerAuthIndirectGotos; 1578 Opts.AArch64JumpTableHardening = LangOpts.AArch64JumpTableHardening; 1579 } 1580 1581 static void parsePointerAuthOptions(PointerAuthOptions &Opts, 1582 const LangOptions &LangOpts, 1583 const llvm::Triple &Triple, 1584 DiagnosticsEngine &Diags) { 1585 if (!LangOpts.PointerAuthCalls && !LangOpts.PointerAuthReturns && 1586 !LangOpts.PointerAuthAuthTraps && !LangOpts.PointerAuthIndirectGotos && 1587 !LangOpts.AArch64JumpTableHardening) 1588 return; 1589 1590 CompilerInvocation::setDefaultPointerAuthOptions(Opts, LangOpts, Triple); 1591 } 1592 1593 void CompilerInvocationBase::GenerateCodeGenArgs(const CodeGenOptions &Opts, 1594 ArgumentConsumer Consumer, 1595 const llvm::Triple &T, 1596 const std::string &OutputFile, 1597 const LangOptions *LangOpts) { 1598 const CodeGenOptions &CodeGenOpts = Opts; 1599 1600 if (Opts.OptimizationLevel == 0) 1601 GenerateArg(Consumer, OPT_O0); 1602 else 1603 GenerateArg(Consumer, OPT_O, Twine(Opts.OptimizationLevel)); 1604 1605 #define CODEGEN_OPTION_WITH_MARSHALLING(...) \ 1606 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 1607 #include "clang/Driver/Options.inc" 1608 #undef CODEGEN_OPTION_WITH_MARSHALLING 1609 1610 if (Opts.OptimizationLevel > 0) { 1611 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1612 GenerateArg(Consumer, OPT_finline_functions); 1613 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1614 GenerateArg(Consumer, OPT_finline_hint_functions); 1615 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1616 GenerateArg(Consumer, OPT_fno_inline); 1617 } 1618 1619 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1620 GenerateArg(Consumer, OPT_fdirect_access_external_data); 1621 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1622 GenerateArg(Consumer, OPT_fno_direct_access_external_data); 1623 1624 std::optional<StringRef> DebugInfoVal; 1625 switch (Opts.DebugInfo) { 1626 case llvm::codegenoptions::DebugLineTablesOnly: 1627 DebugInfoVal = "line-tables-only"; 1628 break; 1629 case llvm::codegenoptions::DebugDirectivesOnly: 1630 DebugInfoVal = "line-directives-only"; 1631 break; 1632 case llvm::codegenoptions::DebugInfoConstructor: 1633 DebugInfoVal = "constructor"; 1634 break; 1635 case llvm::codegenoptions::LimitedDebugInfo: 1636 DebugInfoVal = "limited"; 1637 break; 1638 case llvm::codegenoptions::FullDebugInfo: 1639 DebugInfoVal = "standalone"; 1640 break; 1641 case llvm::codegenoptions::UnusedTypeInfo: 1642 DebugInfoVal = "unused-types"; 1643 break; 1644 case llvm::codegenoptions::NoDebugInfo: // default value 1645 DebugInfoVal = std::nullopt; 1646 break; 1647 case llvm::codegenoptions::LocTrackingOnly: // implied value 1648 DebugInfoVal = std::nullopt; 1649 break; 1650 } 1651 if (DebugInfoVal) 1652 GenerateArg(Consumer, OPT_debug_info_kind_EQ, *DebugInfoVal); 1653 1654 for (const auto &Prefix : Opts.DebugPrefixMap) 1655 GenerateArg(Consumer, OPT_fdebug_prefix_map_EQ, 1656 Prefix.first + "=" + Prefix.second); 1657 1658 for (const auto &Prefix : Opts.CoveragePrefixMap) 1659 GenerateArg(Consumer, OPT_fcoverage_prefix_map_EQ, 1660 Prefix.first + "=" + Prefix.second); 1661 1662 if (Opts.NewStructPathTBAA) 1663 GenerateArg(Consumer, OPT_new_struct_path_tbaa); 1664 1665 if (Opts.OptimizeSize == 1) 1666 GenerateArg(Consumer, OPT_O, "s"); 1667 else if (Opts.OptimizeSize == 2) 1668 GenerateArg(Consumer, OPT_O, "z"); 1669 1670 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1671 // -ffreestanding. We'll consider that when generating them. 1672 1673 // NoBuiltinFuncs are generated by LangOptions. 1674 1675 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1676 GenerateArg(Consumer, OPT_funroll_loops); 1677 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1678 GenerateArg(Consumer, OPT_fno_unroll_loops); 1679 1680 if (Opts.InterchangeLoops) 1681 GenerateArg(Consumer, OPT_floop_interchange); 1682 else 1683 GenerateArg(Consumer, OPT_fno_loop_interchange); 1684 1685 if (!Opts.BinutilsVersion.empty()) 1686 GenerateArg(Consumer, OPT_fbinutils_version_EQ, Opts.BinutilsVersion); 1687 1688 if (Opts.DebugNameTable == 1689 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1690 GenerateArg(Consumer, OPT_ggnu_pubnames); 1691 else if (Opts.DebugNameTable == 1692 static_cast<unsigned>( 1693 llvm::DICompileUnit::DebugNameTableKind::Default)) 1694 GenerateArg(Consumer, OPT_gpubnames); 1695 1696 if (Opts.DebugTemplateAlias) 1697 GenerateArg(Consumer, OPT_gtemplate_alias); 1698 1699 auto TNK = Opts.getDebugSimpleTemplateNames(); 1700 if (TNK != llvm::codegenoptions::DebugTemplateNamesKind::Full) { 1701 if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Simple) 1702 GenerateArg(Consumer, OPT_gsimple_template_names_EQ, "simple"); 1703 else if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Mangled) 1704 GenerateArg(Consumer, OPT_gsimple_template_names_EQ, "mangled"); 1705 } 1706 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1707 // it or PGOUseInstrumentor. 1708 1709 if (Opts.TimePasses) { 1710 if (Opts.TimePassesPerRun) 1711 GenerateArg(Consumer, OPT_ftime_report_EQ, "per-pass-run"); 1712 else 1713 GenerateArg(Consumer, OPT_ftime_report); 1714 1715 if (Opts.TimePassesJson) 1716 GenerateArg(Consumer, OPT_ftime_report_json); 1717 } 1718 1719 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1720 GenerateArg(Consumer, OPT_flto_EQ, "full"); 1721 1722 if (Opts.PrepareForThinLTO) 1723 GenerateArg(Consumer, OPT_flto_EQ, "thin"); 1724 1725 if (!Opts.ThinLTOIndexFile.empty()) 1726 GenerateArg(Consumer, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile); 1727 1728 if (Opts.SaveTempsFilePrefix == OutputFile) 1729 GenerateArg(Consumer, OPT_save_temps_EQ, "obj"); 1730 1731 StringRef MemProfileBasename("memprof.profraw"); 1732 if (!Opts.MemoryProfileOutput.empty()) { 1733 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1734 GenerateArg(Consumer, OPT_fmemory_profile); 1735 } else { 1736 size_t ArgLength = 1737 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1738 GenerateArg(Consumer, OPT_fmemory_profile_EQ, 1739 Opts.MemoryProfileOutput.substr(0, ArgLength)); 1740 } 1741 } 1742 1743 if (memcmp(Opts.CoverageVersion, "0000", 4)) 1744 GenerateArg(Consumer, OPT_coverage_version_EQ, 1745 StringRef(Opts.CoverageVersion, 4)); 1746 1747 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1748 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1749 // won't be generated.) 1750 1751 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1752 std::string InstrBundle = 1753 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1754 if (!InstrBundle.empty()) 1755 GenerateArg(Consumer, OPT_fxray_instrumentation_bundle, InstrBundle); 1756 } 1757 1758 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1759 GenerateArg(Consumer, OPT_fcf_protection_EQ, "full"); 1760 else if (Opts.CFProtectionReturn) 1761 GenerateArg(Consumer, OPT_fcf_protection_EQ, "return"); 1762 else if (Opts.CFProtectionBranch) 1763 GenerateArg(Consumer, OPT_fcf_protection_EQ, "branch"); 1764 1765 if (Opts.CFProtectionBranch) { 1766 switch (Opts.getCFBranchLabelScheme()) { 1767 case CFBranchLabelSchemeKind::Default: 1768 break; 1769 #define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \ 1770 case CFBranchLabelSchemeKind::Kind: \ 1771 GenerateArg(Consumer, OPT_mcf_branch_label_scheme_EQ, #FlagVal); \ 1772 break; 1773 #include "clang/Basic/CFProtectionOptions.def" 1774 } 1775 } 1776 1777 if (Opts.FunctionReturnThunks) 1778 GenerateArg(Consumer, OPT_mfunction_return_EQ, "thunk-extern"); 1779 1780 for (const auto &F : Opts.LinkBitcodeFiles) { 1781 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1782 F.PropagateAttrs && F.Internalize; 1783 GenerateArg(Consumer, 1784 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1785 F.Filename); 1786 } 1787 1788 if (Opts.EmulatedTLS) 1789 GenerateArg(Consumer, OPT_femulated_tls); 1790 1791 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1792 GenerateArg(Consumer, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str()); 1793 1794 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1795 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1796 GenerateArg(Consumer, OPT_fdenormal_fp_math_f32_EQ, 1797 Opts.FP32DenormalMode.str()); 1798 1799 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1800 OptSpecifier Opt = 1801 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1802 GenerateArg(Consumer, Opt); 1803 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1804 OptSpecifier Opt = 1805 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1806 GenerateArg(Consumer, Opt); 1807 } 1808 1809 if (Opts.EnableAIXExtendedAltivecABI) 1810 GenerateArg(Consumer, OPT_mabi_EQ_vec_extabi); 1811 1812 if (Opts.XCOFFReadOnlyPointers) 1813 GenerateArg(Consumer, OPT_mxcoff_roptr); 1814 1815 if (!Opts.OptRecordPasses.empty()) 1816 GenerateArg(Consumer, OPT_opt_record_passes, Opts.OptRecordPasses); 1817 1818 if (!Opts.OptRecordFormat.empty()) 1819 GenerateArg(Consumer, OPT_opt_record_format, Opts.OptRecordFormat); 1820 1821 GenerateOptimizationRemark(Consumer, OPT_Rpass_EQ, "pass", 1822 Opts.OptimizationRemark); 1823 1824 GenerateOptimizationRemark(Consumer, OPT_Rpass_missed_EQ, "pass-missed", 1825 Opts.OptimizationRemarkMissed); 1826 1827 GenerateOptimizationRemark(Consumer, OPT_Rpass_analysis_EQ, "pass-analysis", 1828 Opts.OptimizationRemarkAnalysis); 1829 1830 GenerateArg(Consumer, OPT_fdiagnostics_hotness_threshold_EQ, 1831 Opts.DiagnosticsHotnessThreshold 1832 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1833 : "auto"); 1834 1835 GenerateArg(Consumer, OPT_fdiagnostics_misexpect_tolerance_EQ, 1836 Twine(*Opts.DiagnosticsMisExpectTolerance)); 1837 1838 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1839 GenerateArg(Consumer, OPT_fsanitize_recover_EQ, Sanitizer); 1840 1841 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1842 GenerateArg(Consumer, OPT_fsanitize_trap_EQ, Sanitizer); 1843 1844 for (StringRef Sanitizer : 1845 serializeSanitizerKinds(Opts.SanitizeMergeHandlers)) 1846 GenerateArg(Consumer, OPT_fsanitize_merge_handlers_EQ, Sanitizer); 1847 1848 SmallVector<std::string, 4> Values; 1849 serializeSanitizerMaskCutoffs(Opts.SanitizeSkipHotCutoffs, Values); 1850 for (std::string Sanitizer : Values) 1851 GenerateArg(Consumer, OPT_fsanitize_skip_hot_cutoff_EQ, Sanitizer); 1852 1853 if (Opts.AllowRuntimeCheckSkipHotCutoff) { 1854 GenerateArg(Consumer, OPT_fallow_runtime_check_skip_hot_cutoff_EQ, 1855 std::to_string(*Opts.AllowRuntimeCheckSkipHotCutoff)); 1856 } 1857 1858 for (StringRef Sanitizer : 1859 serializeSanitizerKinds(Opts.SanitizeAnnotateDebugInfo)) 1860 GenerateArg(Consumer, OPT_fsanitize_annotate_debug_info_EQ, Sanitizer); 1861 1862 if (!Opts.EmitVersionIdentMetadata) 1863 GenerateArg(Consumer, OPT_Qn); 1864 1865 switch (Opts.FiniteLoops) { 1866 case CodeGenOptions::FiniteLoopsKind::Language: 1867 break; 1868 case CodeGenOptions::FiniteLoopsKind::Always: 1869 GenerateArg(Consumer, OPT_ffinite_loops); 1870 break; 1871 case CodeGenOptions::FiniteLoopsKind::Never: 1872 GenerateArg(Consumer, OPT_fno_finite_loops); 1873 break; 1874 } 1875 1876 if (Opts.StaticClosure) 1877 GenerateArg(Consumer, OPT_static_libclosure); 1878 } 1879 1880 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1881 InputKind IK, 1882 DiagnosticsEngine &Diags, 1883 const llvm::Triple &T, 1884 const std::string &OutputFile, 1885 const LangOptions &LangOptsRef) { 1886 unsigned NumErrorsBefore = Diags.getNumErrors(); 1887 1888 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1889 // TODO: This could be done in Driver 1890 unsigned MaxOptLevel = 3; 1891 if (OptimizationLevel > MaxOptLevel) { 1892 // If the optimization level is not supported, fall back on the default 1893 // optimization 1894 Diags.Report(diag::warn_drv_optimization_value) 1895 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1896 OptimizationLevel = MaxOptLevel; 1897 } 1898 Opts.OptimizationLevel = OptimizationLevel; 1899 1900 // The key paths of codegen options defined in Options.td start with 1901 // "CodeGenOpts.". Let's provide the expected variable name and type. 1902 CodeGenOptions &CodeGenOpts = Opts; 1903 // Some codegen options depend on language options. Let's provide the expected 1904 // variable name and type. 1905 const LangOptions *LangOpts = &LangOptsRef; 1906 1907 #define CODEGEN_OPTION_WITH_MARSHALLING(...) \ 1908 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 1909 #include "clang/Driver/Options.inc" 1910 #undef CODEGEN_OPTION_WITH_MARSHALLING 1911 1912 // At O0 we want to fully disable inlining outside of cases marked with 1913 // 'alwaysinline' that are required for correctness. 1914 if (Opts.OptimizationLevel == 0) { 1915 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1916 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1917 options::OPT_finline_hint_functions, 1918 options::OPT_fno_inline_functions, 1919 options::OPT_fno_inline)) { 1920 // Explicit inlining flags can disable some or all inlining even at 1921 // optimization levels above zero. 1922 if (A->getOption().matches(options::OPT_finline_functions)) 1923 Opts.setInlining(CodeGenOptions::NormalInlining); 1924 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1925 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1926 else 1927 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1928 } else { 1929 Opts.setInlining(CodeGenOptions::NormalInlining); 1930 } 1931 1932 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1933 // -fdirect-access-external-data. 1934 Opts.DirectAccessExternalData = 1935 Args.hasArg(OPT_fdirect_access_external_data) || 1936 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1937 LangOpts->PICLevel == 0); 1938 1939 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1940 unsigned Val = 1941 llvm::StringSwitch<unsigned>(A->getValue()) 1942 .Case("line-tables-only", llvm::codegenoptions::DebugLineTablesOnly) 1943 .Case("line-directives-only", 1944 llvm::codegenoptions::DebugDirectivesOnly) 1945 .Case("constructor", llvm::codegenoptions::DebugInfoConstructor) 1946 .Case("limited", llvm::codegenoptions::LimitedDebugInfo) 1947 .Case("standalone", llvm::codegenoptions::FullDebugInfo) 1948 .Case("unused-types", llvm::codegenoptions::UnusedTypeInfo) 1949 .Default(~0U); 1950 if (Val == ~0U) 1951 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1952 << A->getValue(); 1953 else 1954 Opts.setDebugInfo(static_cast<llvm::codegenoptions::DebugInfoKind>(Val)); 1955 } 1956 1957 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1958 // constructor homing, and vice versa for -fno-use-ctor-homing. 1959 if (const Arg *A = 1960 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1961 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1962 Opts.getDebugInfo() == llvm::codegenoptions::LimitedDebugInfo) 1963 Opts.setDebugInfo(llvm::codegenoptions::DebugInfoConstructor); 1964 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1965 Opts.getDebugInfo() == llvm::codegenoptions::DebugInfoConstructor) 1966 Opts.setDebugInfo(llvm::codegenoptions::LimitedDebugInfo); 1967 } 1968 1969 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1970 auto Split = StringRef(Arg).split('='); 1971 Opts.DebugPrefixMap.emplace_back(Split.first, Split.second); 1972 } 1973 1974 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1975 auto Split = StringRef(Arg).split('='); 1976 Opts.CoveragePrefixMap.emplace_back(Split.first, Split.second); 1977 } 1978 1979 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1980 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1981 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1982 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1983 1984 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1985 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1986 Opts.EmitCallSiteInfo = true; 1987 1988 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1989 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1990 << Opts.DIBugsReportFilePath; 1991 Opts.DIBugsReportFilePath = ""; 1992 } 1993 1994 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1995 Args.hasArg(OPT_new_struct_path_tbaa); 1996 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1997 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1998 if (Opts.SimplifyLibCalls) 1999 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 2000 Opts.UnrollLoops = 2001 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 2002 (Opts.OptimizationLevel > 1)); 2003 Opts.InterchangeLoops = 2004 Args.hasFlag(OPT_floop_interchange, OPT_fno_loop_interchange, false); 2005 Opts.BinutilsVersion = 2006 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 2007 2008 Opts.DebugTemplateAlias = Args.hasArg(OPT_gtemplate_alias); 2009 2010 Opts.DebugNameTable = static_cast<unsigned>( 2011 Args.hasArg(OPT_ggnu_pubnames) 2012 ? llvm::DICompileUnit::DebugNameTableKind::GNU 2013 : Args.hasArg(OPT_gpubnames) 2014 ? llvm::DICompileUnit::DebugNameTableKind::Default 2015 : llvm::DICompileUnit::DebugNameTableKind::None); 2016 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 2017 StringRef Value = A->getValue(); 2018 if (Value != "simple" && Value != "mangled") 2019 Diags.Report(diag::err_drv_unsupported_option_argument) 2020 << A->getSpelling() << A->getValue(); 2021 Opts.setDebugSimpleTemplateNames( 2022 StringRef(A->getValue()) == "simple" 2023 ? llvm::codegenoptions::DebugTemplateNamesKind::Simple 2024 : llvm::codegenoptions::DebugTemplateNamesKind::Mangled); 2025 } 2026 2027 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ, 2028 OPT_ftime_report_json)) { 2029 Opts.TimePasses = true; 2030 2031 // -ftime-report= is only for new pass manager. 2032 if (const Arg *EQ = Args.getLastArg(OPT_ftime_report_EQ)) { 2033 StringRef Val = EQ->getValue(); 2034 if (Val == "per-pass") 2035 Opts.TimePassesPerRun = false; 2036 else if (Val == "per-pass-run") 2037 Opts.TimePassesPerRun = true; 2038 else 2039 Diags.Report(diag::err_drv_invalid_value) 2040 << A->getAsString(Args) << A->getValue(); 2041 } 2042 2043 if (Args.getLastArg(OPT_ftime_report_json)) 2044 Opts.TimePassesJson = true; 2045 } 2046 2047 Opts.PrepareForLTO = false; 2048 Opts.PrepareForThinLTO = false; 2049 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 2050 Opts.PrepareForLTO = true; 2051 StringRef S = A->getValue(); 2052 if (S == "thin") 2053 Opts.PrepareForThinLTO = true; 2054 else if (S != "full") 2055 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 2056 if (Args.hasArg(OPT_funified_lto)) 2057 Opts.PrepareForThinLTO = true; 2058 } 2059 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 2060 if (IK.getLanguage() != Language::LLVM_IR) 2061 Diags.Report(diag::err_drv_argument_only_allowed_with) 2062 << A->getAsString(Args) << "-x ir"; 2063 Opts.ThinLTOIndexFile = 2064 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 2065 } 2066 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 2067 Opts.SaveTempsFilePrefix = 2068 llvm::StringSwitch<std::string>(A->getValue()) 2069 .Case("obj", OutputFile) 2070 .Default(llvm::sys::path::filename(OutputFile).str()); 2071 2072 // The memory profile runtime appends the pid to make this name more unique. 2073 const char *MemProfileBasename = "memprof.profraw"; 2074 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 2075 SmallString<128> Path(Args.getLastArgValue(OPT_fmemory_profile_EQ)); 2076 llvm::sys::path::append(Path, MemProfileBasename); 2077 Opts.MemoryProfileOutput = std::string(Path); 2078 } else if (Args.hasArg(OPT_fmemory_profile)) 2079 Opts.MemoryProfileOutput = MemProfileBasename; 2080 2081 if (Opts.CoverageNotesFile.size() || Opts.CoverageDataFile.size()) { 2082 if (Args.hasArg(OPT_coverage_version_EQ)) { 2083 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 2084 if (CoverageVersion.size() != 4) { 2085 Diags.Report(diag::err_drv_invalid_value) 2086 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 2087 << CoverageVersion; 2088 } else { 2089 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 2090 } 2091 } 2092 } 2093 // FIXME: For backend options that are not yet recorded as function 2094 // attributes in the IR, keep track of them so we can embed them in a 2095 // separate data section and use them when building the bitcode. 2096 for (const auto &A : Args) { 2097 // Do not encode output and input. 2098 if (A->getOption().getID() == options::OPT_o || 2099 A->getOption().getID() == options::OPT_INPUT || 2100 A->getOption().getID() == options::OPT_x || 2101 A->getOption().getID() == options::OPT_fembed_bitcode || 2102 A->getOption().matches(options::OPT_W_Group)) 2103 continue; 2104 ArgStringList ASL; 2105 A->render(Args, ASL); 2106 for (const auto &arg : ASL) { 2107 StringRef ArgStr(arg); 2108 llvm::append_range(Opts.CmdArgs, ArgStr); 2109 // using \00 to separate each commandline options. 2110 Opts.CmdArgs.push_back('\0'); 2111 } 2112 } 2113 2114 auto XRayInstrBundles = 2115 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 2116 if (XRayInstrBundles.empty()) 2117 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 2118 else 2119 for (const auto &A : XRayInstrBundles) 2120 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 2121 Diags, Opts.XRayInstrumentationBundle); 2122 2123 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2124 StringRef Name = A->getValue(); 2125 if (Name == "full") { 2126 Opts.CFProtectionReturn = 1; 2127 Opts.CFProtectionBranch = 1; 2128 } else if (Name == "return") 2129 Opts.CFProtectionReturn = 1; 2130 else if (Name == "branch") 2131 Opts.CFProtectionBranch = 1; 2132 else if (Name != "none") 2133 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2134 } 2135 2136 if (Opts.CFProtectionBranch && T.isRISCV()) { 2137 if (const Arg *A = Args.getLastArg(OPT_mcf_branch_label_scheme_EQ)) { 2138 const auto Scheme = 2139 llvm::StringSwitch<CFBranchLabelSchemeKind>(A->getValue()) 2140 #define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \ 2141 .Case(#FlagVal, CFBranchLabelSchemeKind::Kind) 2142 #include "clang/Basic/CFProtectionOptions.def" 2143 .Default(CFBranchLabelSchemeKind::Default); 2144 if (Scheme != CFBranchLabelSchemeKind::Default) 2145 Opts.setCFBranchLabelScheme(Scheme); 2146 else 2147 Diags.Report(diag::err_drv_invalid_value) 2148 << A->getAsString(Args) << A->getValue(); 2149 } 2150 } 2151 2152 if (const Arg *A = Args.getLastArg(OPT_mfunction_return_EQ)) { 2153 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue()) 2154 .Case("keep", llvm::FunctionReturnThunksKind::Keep) 2155 .Case("thunk-extern", llvm::FunctionReturnThunksKind::Extern) 2156 .Default(llvm::FunctionReturnThunksKind::Invalid); 2157 // SystemZ might want to add support for "expolines." 2158 if (!T.isX86()) 2159 Diags.Report(diag::err_drv_argument_not_allowed_with) 2160 << A->getSpelling() << T.getTriple(); 2161 else if (Val == llvm::FunctionReturnThunksKind::Invalid) 2162 Diags.Report(diag::err_drv_invalid_value) 2163 << A->getAsString(Args) << A->getValue(); 2164 else if (Val == llvm::FunctionReturnThunksKind::Extern && 2165 Args.getLastArgValue(OPT_mcmodel_EQ) == "large") 2166 Diags.Report(diag::err_drv_argument_not_allowed_with) 2167 << A->getAsString(Args) 2168 << Args.getLastArg(OPT_mcmodel_EQ)->getAsString(Args); 2169 else 2170 Opts.FunctionReturnThunks = static_cast<unsigned>(Val); 2171 } 2172 2173 for (auto *A : 2174 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 2175 CodeGenOptions::BitcodeFileToLink F; 2176 F.Filename = A->getValue(); 2177 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 2178 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 2179 // When linking CUDA bitcode, propagate function attributes so that 2180 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 2181 F.PropagateAttrs = true; 2182 F.Internalize = true; 2183 } 2184 Opts.LinkBitcodeFiles.push_back(F); 2185 } 2186 2187 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 2188 StringRef Val = A->getValue(); 2189 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 2190 Opts.FP32DenormalMode = Opts.FPDenormalMode; 2191 if (!Opts.FPDenormalMode.isValid()) 2192 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2193 } 2194 2195 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 2196 StringRef Val = A->getValue(); 2197 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 2198 if (!Opts.FP32DenormalMode.isValid()) 2199 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2200 } 2201 2202 // X86_32 has -fppc-struct-return and -freg-struct-return. 2203 // PPC32 has -maix-struct-return and -msvr4-struct-return. 2204 if (Arg *A = 2205 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 2206 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 2207 // TODO: We might want to consider enabling these options on AIX in the 2208 // future. 2209 if (T.isOSAIX()) 2210 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2211 << A->getSpelling() << T.str(); 2212 2213 const Option &O = A->getOption(); 2214 if (O.matches(OPT_fpcc_struct_return) || 2215 O.matches(OPT_maix_struct_return)) { 2216 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 2217 } else { 2218 assert(O.matches(OPT_freg_struct_return) || 2219 O.matches(OPT_msvr4_struct_return)); 2220 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 2221 } 2222 } 2223 2224 if (Arg *A = Args.getLastArg(OPT_mxcoff_roptr)) { 2225 if (!T.isOSAIX()) 2226 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2227 << A->getSpelling() << T.str(); 2228 2229 // Since the storage mapping class is specified per csect, 2230 // without using data sections, it is less effective to use read-only 2231 // pointers. Using read-only pointers may cause other RO variables in the 2232 // same csect to become RW when the linker acts upon `-bforceimprw`; 2233 // therefore, we require that separate data sections 2234 // are used when `-mxcoff-roptr` is in effect. We respect the setting of 2235 // data-sections since we have not found reasons to do otherwise that 2236 // overcome the user surprise of not respecting the setting. 2237 if (!Args.hasFlag(OPT_fdata_sections, OPT_fno_data_sections, false)) 2238 Diags.Report(diag::err_roptr_requires_data_sections); 2239 2240 Opts.XCOFFReadOnlyPointers = true; 2241 } 2242 2243 if (Arg *A = Args.getLastArg(OPT_mabi_EQ_quadword_atomics)) { 2244 if (!T.isOSAIX() || T.isPPC32()) 2245 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2246 << A->getSpelling() << T.str(); 2247 } 2248 2249 bool NeedLocTracking = false; 2250 2251 if (!Opts.OptRecordFile.empty()) 2252 NeedLocTracking = true; 2253 2254 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 2255 Opts.OptRecordPasses = A->getValue(); 2256 NeedLocTracking = true; 2257 } 2258 2259 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 2260 Opts.OptRecordFormat = A->getValue(); 2261 NeedLocTracking = true; 2262 } 2263 2264 Opts.OptimizationRemark = 2265 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 2266 2267 Opts.OptimizationRemarkMissed = 2268 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 2269 2270 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 2271 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 2272 2273 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 2274 Opts.OptimizationRemarkMissed.hasValidPattern() || 2275 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 2276 2277 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 2278 bool UsingProfile = 2279 UsingSampleProfile || !Opts.ProfileInstrumentUsePath.empty(); 2280 2281 if (Opts.DiagnosticsWithHotness && !UsingProfile && 2282 // An IR file will contain PGO as metadata 2283 IK.getLanguage() != Language::LLVM_IR) 2284 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 2285 << "-fdiagnostics-show-hotness"; 2286 2287 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 2288 if (auto *arg = 2289 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 2290 auto ResultOrErr = 2291 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 2292 2293 if (!ResultOrErr) { 2294 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 2295 << "-fdiagnostics-hotness-threshold="; 2296 } else { 2297 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 2298 if ((!Opts.DiagnosticsHotnessThreshold || 2299 *Opts.DiagnosticsHotnessThreshold > 0) && 2300 !UsingProfile) 2301 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 2302 << "-fdiagnostics-hotness-threshold="; 2303 } 2304 } 2305 2306 if (auto *arg = 2307 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 2308 auto ResultOrErr = parseToleranceOption(arg->getValue()); 2309 2310 if (!ResultOrErr) { 2311 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 2312 << "-fdiagnostics-misexpect-tolerance="; 2313 } else { 2314 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 2315 if ((!Opts.DiagnosticsMisExpectTolerance || 2316 *Opts.DiagnosticsMisExpectTolerance > 0) && 2317 !UsingProfile) 2318 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 2319 << "-fdiagnostics-misexpect-tolerance="; 2320 } 2321 } 2322 2323 // If the user requested to use a sample profile for PGO, then the 2324 // backend will need to track source location information so the profile 2325 // can be incorporated into the IR. 2326 if (UsingSampleProfile) 2327 NeedLocTracking = true; 2328 2329 if (!Opts.StackUsageOutput.empty()) 2330 NeedLocTracking = true; 2331 2332 // If the user requested a flag that requires source locations available in 2333 // the backend, make sure that the backend tracks source location information. 2334 if (NeedLocTracking && 2335 Opts.getDebugInfo() == llvm::codegenoptions::NoDebugInfo) 2336 Opts.setDebugInfo(llvm::codegenoptions::LocTrackingOnly); 2337 2338 // Parse -fsanitize-recover= arguments. 2339 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2340 parseSanitizerKinds("-fsanitize-recover=", 2341 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2342 Opts.SanitizeRecover); 2343 parseSanitizerKinds("-fsanitize-trap=", 2344 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2345 Opts.SanitizeTrap); 2346 parseSanitizerKinds("-fsanitize-merge=", 2347 Args.getAllArgValues(OPT_fsanitize_merge_handlers_EQ), 2348 Diags, Opts.SanitizeMergeHandlers); 2349 2350 // Parse -fsanitize-skip-hot-cutoff= arguments. 2351 Opts.SanitizeSkipHotCutoffs = parseSanitizerWeightedKinds( 2352 "-fsanitize-skip-hot-cutoff=", 2353 Args.getAllArgValues(OPT_fsanitize_skip_hot_cutoff_EQ), Diags); 2354 2355 parseSanitizerKinds( 2356 "-fsanitize-annotate-debug-info=", 2357 Args.getAllArgValues(OPT_fsanitize_annotate_debug_info_EQ), Diags, 2358 Opts.SanitizeAnnotateDebugInfo); 2359 2360 if (StringRef V = 2361 Args.getLastArgValue(OPT_fallow_runtime_check_skip_hot_cutoff_EQ); 2362 !V.empty()) { 2363 double A; 2364 if (V.getAsDouble(A) || A < 0.0 || A > 1.0) { 2365 Diags.Report(diag::err_drv_invalid_value) 2366 << "-fallow-runtime-check-skip-hot-cutoff=" << V; 2367 } else { 2368 Opts.AllowRuntimeCheckSkipHotCutoff = A; 2369 } 2370 } 2371 2372 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2373 2374 if (!LangOpts->CUDAIsDevice) 2375 parsePointerAuthOptions(Opts.PointerAuth, *LangOpts, T, Diags); 2376 2377 if (Args.hasArg(options::OPT_ffinite_loops)) 2378 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2379 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2380 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2381 2382 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2383 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2384 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2385 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2386 2387 Opts.StaticClosure = Args.hasArg(options::OPT_static_libclosure); 2388 2389 return Diags.getNumErrors() == NumErrorsBefore; 2390 } 2391 2392 static void GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2393 ArgumentConsumer Consumer) { 2394 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2395 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 2396 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2397 #include "clang/Driver/Options.inc" 2398 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2399 2400 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2401 GenerateArg(Consumer, OPT_show_includes); 2402 2403 for (const auto &Dep : Opts.ExtraDeps) { 2404 switch (Dep.second) { 2405 case EDK_SanitizeIgnorelist: 2406 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2407 continue; 2408 case EDK_ModuleFile: 2409 // Module file arguments are generated from FrontendOptions and 2410 // HeaderSearchOptions. 2411 continue; 2412 case EDK_ProfileList: 2413 // Profile list arguments are generated from LanguageOptions via the 2414 // marshalling infrastructure. 2415 continue; 2416 case EDK_DepFileEntry: 2417 GenerateArg(Consumer, OPT_fdepfile_entry, Dep.first); 2418 break; 2419 } 2420 } 2421 } 2422 2423 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2424 ArgList &Args, DiagnosticsEngine &Diags, 2425 frontend::ActionKind Action, 2426 bool ShowLineMarkers) { 2427 unsigned NumErrorsBefore = Diags.getNumErrors(); 2428 2429 DependencyOutputOptions &DependencyOutputOpts = Opts; 2430 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 2431 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2432 #include "clang/Driver/Options.inc" 2433 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2434 2435 if (Args.hasArg(OPT_show_includes)) { 2436 // Writing both /showIncludes and preprocessor output to stdout 2437 // would produce interleaved output, so use stderr for /showIncludes. 2438 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2439 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2440 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2441 else 2442 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2443 } else { 2444 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2445 } 2446 2447 // Add sanitizer ignorelists as extra dependencies. 2448 // They won't be discovered by the regular preprocessor, so 2449 // we let make / ninja to know about this implicit dependency. 2450 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2451 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2452 StringRef Val = A->getValue(); 2453 if (!Val.contains('=')) 2454 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2455 } 2456 if (Opts.IncludeSystemHeaders) { 2457 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2458 StringRef Val = A->getValue(); 2459 if (!Val.contains('=')) 2460 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2461 } 2462 } 2463 } 2464 2465 // -fprofile-list= dependencies. 2466 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2467 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2468 2469 // Propagate the extra dependencies. 2470 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2471 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2472 2473 // Only the -fmodule-file=<file> form. 2474 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2475 StringRef Val = A->getValue(); 2476 if (!Val.contains('=')) 2477 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2478 } 2479 2480 // Check for invalid combinations of header-include-format 2481 // and header-include-filtering. 2482 if (Opts.HeaderIncludeFormat == HIFMT_Textual && 2483 Opts.HeaderIncludeFiltering != HIFIL_None) { 2484 if (Args.hasArg(OPT_header_include_format_EQ)) 2485 Diags.Report(diag::err_drv_print_header_cc1_invalid_combination) 2486 << headerIncludeFormatKindToString(Opts.HeaderIncludeFormat) 2487 << headerIncludeFilteringKindToString(Opts.HeaderIncludeFiltering); 2488 else 2489 Diags.Report(diag::err_drv_print_header_cc1_invalid_filtering) 2490 << headerIncludeFilteringKindToString(Opts.HeaderIncludeFiltering); 2491 } else if (Opts.HeaderIncludeFormat == HIFMT_JSON && 2492 Opts.HeaderIncludeFiltering == HIFIL_None) { 2493 if (Args.hasArg(OPT_header_include_filtering_EQ)) 2494 Diags.Report(diag::err_drv_print_header_cc1_invalid_combination) 2495 << headerIncludeFormatKindToString(Opts.HeaderIncludeFormat) 2496 << headerIncludeFilteringKindToString(Opts.HeaderIncludeFiltering); 2497 else 2498 Diags.Report(diag::err_drv_print_header_cc1_invalid_format) 2499 << headerIncludeFormatKindToString(Opts.HeaderIncludeFormat); 2500 } 2501 2502 return Diags.getNumErrors() == NumErrorsBefore; 2503 } 2504 2505 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2506 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2507 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2508 // Support both clang's -f[no-]color-diagnostics and gcc's 2509 // -f[no-]diagnostics-colors[=never|always|auto]. 2510 enum { 2511 Colors_On, 2512 Colors_Off, 2513 Colors_Auto 2514 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2515 for (auto *A : Args) { 2516 const Option &O = A->getOption(); 2517 if (O.matches(options::OPT_fcolor_diagnostics)) { 2518 ShowColors = Colors_On; 2519 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2520 ShowColors = Colors_Off; 2521 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2522 StringRef Value(A->getValue()); 2523 if (Value == "always") 2524 ShowColors = Colors_On; 2525 else if (Value == "never") 2526 ShowColors = Colors_Off; 2527 else if (Value == "auto") 2528 ShowColors = Colors_Auto; 2529 } 2530 } 2531 return ShowColors == Colors_On || 2532 (ShowColors == Colors_Auto && 2533 llvm::sys::Process::StandardErrHasColors()); 2534 } 2535 2536 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2537 DiagnosticsEngine &Diags) { 2538 bool Success = true; 2539 for (const auto &Prefix : VerifyPrefixes) { 2540 // Every prefix must start with a letter and contain only alphanumeric 2541 // characters, hyphens, and underscores. 2542 auto BadChar = llvm::find_if(Prefix, [](char C) { 2543 return !isAlphanumeric(C) && C != '-' && C != '_'; 2544 }); 2545 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2546 Success = false; 2547 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2548 Diags.Report(diag::note_drv_verify_prefix_spelling); 2549 } 2550 } 2551 return Success; 2552 } 2553 2554 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2555 ArgumentConsumer Consumer) { 2556 const FileSystemOptions &FileSystemOpts = Opts; 2557 2558 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \ 2559 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2560 #include "clang/Driver/Options.inc" 2561 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2562 } 2563 2564 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2565 DiagnosticsEngine &Diags) { 2566 unsigned NumErrorsBefore = Diags.getNumErrors(); 2567 2568 FileSystemOptions &FileSystemOpts = Opts; 2569 2570 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \ 2571 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2572 #include "clang/Driver/Options.inc" 2573 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2574 2575 return Diags.getNumErrors() == NumErrorsBefore; 2576 } 2577 2578 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2579 ArgumentConsumer Consumer) { 2580 const MigratorOptions &MigratorOpts = Opts; 2581 #define MIGRATOR_OPTION_WITH_MARSHALLING(...) \ 2582 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2583 #include "clang/Driver/Options.inc" 2584 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2585 } 2586 2587 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2588 DiagnosticsEngine &Diags) { 2589 unsigned NumErrorsBefore = Diags.getNumErrors(); 2590 2591 MigratorOptions &MigratorOpts = Opts; 2592 2593 #define MIGRATOR_OPTION_WITH_MARSHALLING(...) \ 2594 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2595 #include "clang/Driver/Options.inc" 2596 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2597 2598 return Diags.getNumErrors() == NumErrorsBefore; 2599 } 2600 2601 void CompilerInvocationBase::GenerateDiagnosticArgs( 2602 const DiagnosticOptions &Opts, ArgumentConsumer Consumer, 2603 bool DefaultDiagColor) { 2604 const DiagnosticOptions *DiagnosticOpts = &Opts; 2605 #define DIAG_OPTION_WITH_MARSHALLING(...) \ 2606 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2607 #include "clang/Driver/Options.inc" 2608 #undef DIAG_OPTION_WITH_MARSHALLING 2609 2610 if (!Opts.DiagnosticSerializationFile.empty()) 2611 GenerateArg(Consumer, OPT_diagnostic_serialized_file, 2612 Opts.DiagnosticSerializationFile); 2613 2614 if (Opts.ShowColors) 2615 GenerateArg(Consumer, OPT_fcolor_diagnostics); 2616 2617 if (Opts.VerifyDiagnostics && 2618 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2619 GenerateArg(Consumer, OPT_verify); 2620 2621 for (const auto &Prefix : Opts.VerifyPrefixes) 2622 if (Prefix != "expected") 2623 GenerateArg(Consumer, OPT_verify_EQ, Prefix); 2624 2625 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2626 if (VIU == DiagnosticLevelMask::None) { 2627 // This is the default, don't generate anything. 2628 } else if (VIU == DiagnosticLevelMask::All) { 2629 GenerateArg(Consumer, OPT_verify_ignore_unexpected); 2630 } else { 2631 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2632 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "note"); 2633 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2634 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "remark"); 2635 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2636 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "warning"); 2637 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2638 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "error"); 2639 } 2640 2641 for (const auto &Warning : Opts.Warnings) { 2642 // This option is automatically generated from UndefPrefixes. 2643 if (Warning == "undef-prefix") 2644 continue; 2645 // This option is automatically generated from CheckConstexprFunctionBodies. 2646 if (Warning == "invalid-constexpr" || Warning == "no-invalid-constexpr") 2647 continue; 2648 Consumer(StringRef("-W") + Warning); 2649 } 2650 2651 for (const auto &Remark : Opts.Remarks) { 2652 // These arguments are generated from OptimizationRemark fields of 2653 // CodeGenOptions. 2654 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2655 "pass-analysis", "no-pass-analysis", 2656 "pass-missed", "no-pass-missed"}; 2657 if (llvm::is_contained(IgnoredRemarks, Remark)) 2658 continue; 2659 2660 Consumer(StringRef("-R") + Remark); 2661 } 2662 2663 if (!Opts.DiagnosticSuppressionMappingsFile.empty()) { 2664 GenerateArg(Consumer, OPT_warning_suppression_mappings_EQ, 2665 Opts.DiagnosticSuppressionMappingsFile); 2666 } 2667 } 2668 2669 std::unique_ptr<DiagnosticOptions> 2670 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2671 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2672 unsigned MissingArgIndex, MissingArgCount; 2673 InputArgList Args = getDriverOptTable().ParseArgs( 2674 Argv.slice(1), MissingArgIndex, MissingArgCount); 2675 2676 bool ShowColors = true; 2677 if (std::optional<std::string> NoColor = 2678 llvm::sys::Process::GetEnv("NO_COLOR"); 2679 NoColor && !NoColor->empty()) { 2680 // If the user set the NO_COLOR environment variable, we'll honor that 2681 // unless the command line overrides it. 2682 ShowColors = false; 2683 } 2684 2685 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2686 // Any errors that would be diagnosed here will also be diagnosed later, 2687 // when the DiagnosticsEngine actually exists. 2688 (void)ParseDiagnosticArgs(*DiagOpts, Args, /*Diags=*/nullptr, ShowColors); 2689 return DiagOpts; 2690 } 2691 2692 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2693 DiagnosticsEngine *Diags, 2694 bool DefaultDiagColor) { 2695 std::optional<DiagnosticOptions> IgnoringDiagOpts; 2696 std::optional<DiagnosticsEngine> IgnoringDiags; 2697 if (!Diags) { 2698 IgnoringDiagOpts.emplace(); 2699 IgnoringDiags.emplace(new DiagnosticIDs(), *IgnoringDiagOpts, 2700 new IgnoringDiagConsumer()); 2701 Diags = &*IgnoringDiags; 2702 } 2703 2704 unsigned NumErrorsBefore = Diags->getNumErrors(); 2705 2706 // The key paths of diagnostic options defined in Options.td start with 2707 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2708 DiagnosticOptions *DiagnosticOpts = &Opts; 2709 2710 #define DIAG_OPTION_WITH_MARSHALLING(...) \ 2711 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, __VA_ARGS__) 2712 #include "clang/Driver/Options.inc" 2713 #undef DIAG_OPTION_WITH_MARSHALLING 2714 2715 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2716 2717 if (Arg *A = 2718 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2719 Opts.DiagnosticSerializationFile = A->getValue(); 2720 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2721 2722 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2723 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2724 if (Args.hasArg(OPT_verify)) 2725 Opts.VerifyPrefixes.push_back("expected"); 2726 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2727 // then sort it to prepare for fast lookup using std::binary_search. 2728 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2729 Opts.VerifyDiagnostics = false; 2730 else 2731 llvm::sort(Opts.VerifyPrefixes); 2732 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2733 parseDiagnosticLevelMask( 2734 "-verify-ignore-unexpected=", 2735 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2736 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2737 DiagMask = DiagnosticLevelMask::All; 2738 Opts.setVerifyIgnoreUnexpected(DiagMask); 2739 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2740 Diags->Report(diag::warn_ignoring_ftabstop_value) 2741 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2742 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2743 } 2744 2745 if (const Arg *A = Args.getLastArg(OPT_warning_suppression_mappings_EQ)) 2746 Opts.DiagnosticSuppressionMappingsFile = A->getValue(); 2747 2748 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2749 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2750 2751 return Diags->getNumErrors() == NumErrorsBefore; 2752 } 2753 2754 /// Parse the argument to the -ftest-module-file-extension 2755 /// command-line argument. 2756 /// 2757 /// \returns true on error, false on success. 2758 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2759 std::string &BlockName, 2760 unsigned &MajorVersion, 2761 unsigned &MinorVersion, 2762 bool &Hashed, 2763 std::string &UserInfo) { 2764 SmallVector<StringRef, 5> Args; 2765 Arg.split(Args, ':', 5); 2766 if (Args.size() < 5) 2767 return true; 2768 2769 BlockName = std::string(Args[0]); 2770 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2771 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2772 if (Args[3].getAsInteger(2, Hashed)) return true; 2773 if (Args.size() > 4) 2774 UserInfo = std::string(Args[4]); 2775 return false; 2776 } 2777 2778 /// Return a table that associates command line option specifiers with the 2779 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2780 /// intentionally missing, as this case is handled separately from other 2781 /// frontend options. 2782 static const auto &getFrontendActionTable() { 2783 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2784 {frontend::ASTDeclList, OPT_ast_list}, 2785 2786 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2787 {frontend::ASTDump, OPT_ast_dump_all}, 2788 {frontend::ASTDump, OPT_ast_dump_EQ}, 2789 {frontend::ASTDump, OPT_ast_dump}, 2790 {frontend::ASTDump, OPT_ast_dump_lookups}, 2791 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2792 2793 {frontend::ASTPrint, OPT_ast_print}, 2794 {frontend::ASTView, OPT_ast_view}, 2795 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2796 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2797 {frontend::DumpTokens, OPT_dump_tokens}, 2798 {frontend::EmitAssembly, OPT_S}, 2799 {frontend::EmitBC, OPT_emit_llvm_bc}, 2800 {frontend::EmitCIR, OPT_emit_cir}, 2801 {frontend::EmitHTML, OPT_emit_html}, 2802 {frontend::EmitLLVM, OPT_emit_llvm}, 2803 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2804 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2805 {frontend::EmitObj, OPT_emit_obj}, 2806 {frontend::ExtractAPI, OPT_extract_api}, 2807 2808 {frontend::FixIt, OPT_fixit_EQ}, 2809 {frontend::FixIt, OPT_fixit}, 2810 2811 {frontend::GenerateModule, OPT_emit_module}, 2812 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2813 {frontend::GenerateReducedModuleInterface, 2814 OPT_emit_reduced_module_interface}, 2815 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2816 {frontend::GeneratePCH, OPT_emit_pch}, 2817 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2818 {frontend::InitOnly, OPT_init_only}, 2819 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2820 {frontend::ModuleFileInfo, OPT_module_file_info}, 2821 {frontend::VerifyPCH, OPT_verify_pch}, 2822 {frontend::PrintPreamble, OPT_print_preamble}, 2823 {frontend::PrintPreprocessedInput, OPT_E}, 2824 {frontend::TemplightDump, OPT_templight_dump}, 2825 {frontend::RewriteMacros, OPT_rewrite_macros}, 2826 {frontend::RewriteObjC, OPT_rewrite_objc}, 2827 {frontend::RewriteTest, OPT_rewrite_test}, 2828 {frontend::RunAnalysis, OPT_analyze}, 2829 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2830 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2831 OPT_print_dependency_directives_minimized_source}, 2832 }; 2833 2834 return Table; 2835 } 2836 2837 /// Maps command line option to frontend action. 2838 static std::optional<frontend::ActionKind> 2839 getFrontendAction(OptSpecifier &Opt) { 2840 for (const auto &ActionOpt : getFrontendActionTable()) 2841 if (ActionOpt.second == Opt.getID()) 2842 return ActionOpt.first; 2843 2844 return std::nullopt; 2845 } 2846 2847 /// Maps frontend action to command line option. 2848 static std::optional<OptSpecifier> 2849 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2850 for (const auto &ActionOpt : getFrontendActionTable()) 2851 if (ActionOpt.first == ProgramAction) 2852 return OptSpecifier(ActionOpt.second); 2853 2854 return std::nullopt; 2855 } 2856 2857 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2858 ArgumentConsumer Consumer, bool IsHeader) { 2859 const FrontendOptions &FrontendOpts = Opts; 2860 #define FRONTEND_OPTION_WITH_MARSHALLING(...) \ 2861 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2862 #include "clang/Driver/Options.inc" 2863 #undef FRONTEND_OPTION_WITH_MARSHALLING 2864 2865 std::optional<OptSpecifier> ProgramActionOpt = 2866 getProgramActionOpt(Opts.ProgramAction); 2867 2868 // Generating a simple flag covers most frontend actions. 2869 std::function<void()> GenerateProgramAction = [&]() { 2870 GenerateArg(Consumer, *ProgramActionOpt); 2871 }; 2872 2873 if (!ProgramActionOpt) { 2874 // PluginAction is the only program action handled separately. 2875 assert(Opts.ProgramAction == frontend::PluginAction && 2876 "Frontend action without option."); 2877 GenerateProgramAction = [&]() { 2878 GenerateArg(Consumer, OPT_plugin, Opts.ActionName); 2879 }; 2880 } 2881 2882 // FIXME: Simplify the complex 'AST dump' command line. 2883 if (Opts.ProgramAction == frontend::ASTDump) { 2884 GenerateProgramAction = [&]() { 2885 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2886 // marshalling infrastructure. 2887 2888 if (Opts.ASTDumpFormat != ADOF_Default) { 2889 StringRef Format; 2890 switch (Opts.ASTDumpFormat) { 2891 case ADOF_Default: 2892 llvm_unreachable("Default AST dump format."); 2893 case ADOF_JSON: 2894 Format = "json"; 2895 break; 2896 } 2897 2898 if (Opts.ASTDumpAll) 2899 GenerateArg(Consumer, OPT_ast_dump_all_EQ, Format); 2900 if (Opts.ASTDumpDecls) 2901 GenerateArg(Consumer, OPT_ast_dump_EQ, Format); 2902 } else { 2903 if (Opts.ASTDumpAll) 2904 GenerateArg(Consumer, OPT_ast_dump_all); 2905 if (Opts.ASTDumpDecls) 2906 GenerateArg(Consumer, OPT_ast_dump); 2907 } 2908 }; 2909 } 2910 2911 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2912 GenerateProgramAction = [&]() { 2913 GenerateArg(Consumer, OPT_fixit_EQ, Opts.FixItSuffix); 2914 }; 2915 } 2916 2917 GenerateProgramAction(); 2918 2919 for (const auto &PluginArgs : Opts.PluginArgs) { 2920 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2921 for (const auto &PluginArg : PluginArgs.second) 2922 denormalizeString(Consumer, 2923 Opt.getPrefix() + Opt.getName() + PluginArgs.first, 2924 Opt.getKind(), 0, PluginArg); 2925 } 2926 2927 for (const auto &Ext : Opts.ModuleFileExtensions) 2928 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2929 GenerateArg(Consumer, OPT_ftest_module_file_extension_EQ, TestExt->str()); 2930 2931 if (!Opts.CodeCompletionAt.FileName.empty()) 2932 GenerateArg(Consumer, OPT_code_completion_at, 2933 Opts.CodeCompletionAt.ToString()); 2934 2935 for (const auto &Plugin : Opts.Plugins) 2936 GenerateArg(Consumer, OPT_load, Plugin); 2937 2938 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2939 2940 for (const auto &ModuleFile : Opts.ModuleFiles) 2941 GenerateArg(Consumer, OPT_fmodule_file, ModuleFile); 2942 2943 if (Opts.AuxTargetCPU) 2944 GenerateArg(Consumer, OPT_aux_target_cpu, *Opts.AuxTargetCPU); 2945 2946 if (Opts.AuxTargetFeatures) 2947 for (const auto &Feature : *Opts.AuxTargetFeatures) 2948 GenerateArg(Consumer, OPT_aux_target_feature, Feature); 2949 2950 { 2951 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2952 StringRef ModuleMap = 2953 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2954 StringRef HeaderUnit = ""; 2955 switch (Opts.DashX.getHeaderUnitKind()) { 2956 case InputKind::HeaderUnit_None: 2957 break; 2958 case InputKind::HeaderUnit_User: 2959 HeaderUnit = "-user"; 2960 break; 2961 case InputKind::HeaderUnit_System: 2962 HeaderUnit = "-system"; 2963 break; 2964 case InputKind::HeaderUnit_Abs: 2965 HeaderUnit = "-header-unit"; 2966 break; 2967 } 2968 StringRef Header = IsHeader ? "-header" : ""; 2969 2970 StringRef Lang; 2971 switch (Opts.DashX.getLanguage()) { 2972 case Language::C: 2973 Lang = "c"; 2974 break; 2975 case Language::OpenCL: 2976 Lang = "cl"; 2977 break; 2978 case Language::OpenCLCXX: 2979 Lang = "clcpp"; 2980 break; 2981 case Language::CUDA: 2982 Lang = "cuda"; 2983 break; 2984 case Language::HIP: 2985 Lang = "hip"; 2986 break; 2987 case Language::CXX: 2988 Lang = "c++"; 2989 break; 2990 case Language::ObjC: 2991 Lang = "objective-c"; 2992 break; 2993 case Language::ObjCXX: 2994 Lang = "objective-c++"; 2995 break; 2996 case Language::Asm: 2997 Lang = "assembler-with-cpp"; 2998 break; 2999 case Language::Unknown: 3000 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 3001 "Generating -x argument for unknown language (not precompiled)."); 3002 Lang = "ast"; 3003 break; 3004 case Language::LLVM_IR: 3005 Lang = "ir"; 3006 break; 3007 case Language::HLSL: 3008 Lang = "hlsl"; 3009 break; 3010 case Language::CIR: 3011 Lang = "cir"; 3012 break; 3013 } 3014 3015 GenerateArg(Consumer, OPT_x, 3016 Lang + HeaderUnit + Header + ModuleMap + Preprocessed); 3017 } 3018 3019 // OPT_INPUT has a unique class, generate it directly. 3020 for (const auto &Input : Opts.Inputs) 3021 Consumer(Input.getFile()); 3022 } 3023 3024 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 3025 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 3026 unsigned NumErrorsBefore = Diags.getNumErrors(); 3027 3028 FrontendOptions &FrontendOpts = Opts; 3029 3030 #define FRONTEND_OPTION_WITH_MARSHALLING(...) \ 3031 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 3032 #include "clang/Driver/Options.inc" 3033 #undef FRONTEND_OPTION_WITH_MARSHALLING 3034 3035 Opts.ProgramAction = frontend::ParseSyntaxOnly; 3036 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 3037 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 3038 std::optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 3039 assert(ProgramAction && "Option specifier not in Action_Group."); 3040 3041 if (ProgramAction == frontend::ASTDump && 3042 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 3043 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 3044 .CaseLower("default", ADOF_Default) 3045 .CaseLower("json", ADOF_JSON) 3046 .Default(std::numeric_limits<unsigned>::max()); 3047 3048 if (Val != std::numeric_limits<unsigned>::max()) 3049 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 3050 else { 3051 Diags.Report(diag::err_drv_invalid_value) 3052 << A->getAsString(Args) << A->getValue(); 3053 Opts.ASTDumpFormat = ADOF_Default; 3054 } 3055 } 3056 3057 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 3058 Opts.FixItSuffix = A->getValue(); 3059 3060 if (ProgramAction == frontend::GenerateInterfaceStubs) { 3061 StringRef ArgStr = 3062 Args.hasArg(OPT_interface_stub_version_EQ) 3063 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 3064 : "ifs-v1"; 3065 if (ArgStr == "experimental-yaml-elf-v1" || 3066 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 3067 ArgStr == "experimental-tapi-elf-v1") { 3068 std::string ErrorMessage = 3069 "Invalid interface stub format: " + ArgStr.str() + 3070 " is deprecated."; 3071 Diags.Report(diag::err_drv_invalid_value) 3072 << "Must specify a valid interface stub format type, ie: " 3073 "-interface-stub-version=ifs-v1" 3074 << ErrorMessage; 3075 ProgramAction = frontend::ParseSyntaxOnly; 3076 } else if (!ArgStr.starts_with("ifs-")) { 3077 std::string ErrorMessage = 3078 "Invalid interface stub format: " + ArgStr.str() + "."; 3079 Diags.Report(diag::err_drv_invalid_value) 3080 << "Must specify a valid interface stub format type, ie: " 3081 "-interface-stub-version=ifs-v1" 3082 << ErrorMessage; 3083 ProgramAction = frontend::ParseSyntaxOnly; 3084 } 3085 } 3086 3087 Opts.ProgramAction = *ProgramAction; 3088 3089 // Catch common mistakes when multiple actions are specified for cc1 (e.g. 3090 // -S -emit-llvm means -emit-llvm while -emit-llvm -S means -S). However, to 3091 // support driver `-c -Xclang ACTION` (-cc1 -emit-llvm file -main-file-name 3092 // X ACTION), we suppress the error when the two actions are separated by 3093 // -main-file-name. 3094 // 3095 // As an exception, accept composable -ast-dump*. 3096 if (!A->getSpelling().starts_with("-ast-dump")) { 3097 const Arg *SavedAction = nullptr; 3098 for (const Arg *AA : 3099 Args.filtered(OPT_Action_Group, OPT_main_file_name)) { 3100 if (AA->getOption().matches(OPT_main_file_name)) { 3101 SavedAction = nullptr; 3102 } else if (!SavedAction) { 3103 SavedAction = AA; 3104 } else { 3105 if (!A->getOption().matches(OPT_ast_dump_EQ)) 3106 Diags.Report(diag::err_fe_invalid_multiple_actions) 3107 << SavedAction->getSpelling() << A->getSpelling(); 3108 break; 3109 } 3110 } 3111 } 3112 } 3113 3114 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 3115 Opts.Plugins.emplace_back(A->getValue(0)); 3116 Opts.ProgramAction = frontend::PluginAction; 3117 Opts.ActionName = A->getValue(); 3118 } 3119 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 3120 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 3121 3122 for (const std::string &Arg : 3123 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 3124 std::string BlockName; 3125 unsigned MajorVersion; 3126 unsigned MinorVersion; 3127 bool Hashed; 3128 std::string UserInfo; 3129 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 3130 MinorVersion, Hashed, UserInfo)) { 3131 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 3132 3133 continue; 3134 } 3135 3136 // Add the testing module file extension. 3137 Opts.ModuleFileExtensions.push_back( 3138 std::make_shared<TestModuleFileExtension>( 3139 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 3140 } 3141 3142 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 3143 Opts.CodeCompletionAt = 3144 ParsedSourceLocation::FromString(A->getValue()); 3145 if (Opts.CodeCompletionAt.FileName.empty()) { 3146 Diags.Report(diag::err_drv_invalid_value) 3147 << A->getAsString(Args) << A->getValue(); 3148 Diags.Report(diag::note_command_line_code_loc_requirement); 3149 } 3150 } 3151 3152 Opts.Plugins = Args.getAllArgValues(OPT_load); 3153 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 3154 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 3155 // Only the -fmodule-file=<file> form. 3156 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3157 StringRef Val = A->getValue(); 3158 if (!Val.contains('=')) 3159 Opts.ModuleFiles.push_back(std::string(Val)); 3160 } 3161 3162 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 3163 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 3164 << "-emit-module"; 3165 if (Args.hasArg(OPT_fclangir) || Args.hasArg(OPT_emit_cir)) 3166 Opts.UseClangIRPipeline = true; 3167 3168 #if CLANG_ENABLE_CIR 3169 if (Args.hasArg(OPT_clangir_disable_passes)) 3170 Opts.ClangIRDisablePasses = true; 3171 3172 if (Args.hasArg(OPT_clangir_disable_verifier)) 3173 Opts.ClangIRDisableCIRVerifier = true; 3174 #endif // CLANG_ENABLE_CIR 3175 3176 if (Args.hasArg(OPT_aux_target_cpu)) 3177 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 3178 if (Args.hasArg(OPT_aux_target_feature)) 3179 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 3180 3181 InputKind DashX(Language::Unknown); 3182 if (const Arg *A = Args.getLastArg(OPT_x)) { 3183 StringRef XValue = A->getValue(); 3184 3185 // Parse suffixes: 3186 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 3187 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 3188 bool Preprocessed = XValue.consume_back("-cpp-output"); 3189 bool ModuleMap = XValue.consume_back("-module-map"); 3190 // Detect and consume the header indicator. 3191 bool IsHeader = 3192 XValue != "precompiled-header" && XValue.consume_back("-header"); 3193 3194 // If we have c++-{user,system}-header, that indicates a header unit input 3195 // likewise, if the user put -fmodule-header together with a header with an 3196 // absolute path (header-unit-header). 3197 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 3198 if (IsHeader || Preprocessed) { 3199 if (XValue.consume_back("-header-unit")) 3200 HUK = InputKind::HeaderUnit_Abs; 3201 else if (XValue.consume_back("-system")) 3202 HUK = InputKind::HeaderUnit_System; 3203 else if (XValue.consume_back("-user")) 3204 HUK = InputKind::HeaderUnit_User; 3205 } 3206 3207 // The value set by this processing is an un-preprocessed source which is 3208 // not intended to be a module map or header unit. 3209 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 3210 HUK == InputKind::HeaderUnit_None; 3211 3212 // Principal languages. 3213 DashX = llvm::StringSwitch<InputKind>(XValue) 3214 .Case("c", Language::C) 3215 .Case("cl", Language::OpenCL) 3216 .Case("clcpp", Language::OpenCLCXX) 3217 .Case("cuda", Language::CUDA) 3218 .Case("hip", Language::HIP) 3219 .Case("c++", Language::CXX) 3220 .Case("objective-c", Language::ObjC) 3221 .Case("objective-c++", Language::ObjCXX) 3222 .Case("hlsl", Language::HLSL) 3223 .Default(Language::Unknown); 3224 3225 // "objc[++]-cpp-output" is an acceptable synonym for 3226 // "objective-c[++]-cpp-output". 3227 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 3228 HUK == InputKind::HeaderUnit_None) 3229 DashX = llvm::StringSwitch<InputKind>(XValue) 3230 .Case("objc", Language::ObjC) 3231 .Case("objc++", Language::ObjCXX) 3232 .Default(Language::Unknown); 3233 3234 // Some special cases cannot be combined with suffixes. 3235 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 3236 HUK == InputKind::HeaderUnit_None) 3237 DashX = llvm::StringSwitch<InputKind>(XValue) 3238 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 3239 .Case("assembler-with-cpp", Language::Asm) 3240 .Cases("ast", "pcm", "precompiled-header", 3241 InputKind(Language::Unknown, InputKind::Precompiled)) 3242 .Case("ir", Language::LLVM_IR) 3243 .Case("cir", Language::CIR) 3244 .Default(Language::Unknown); 3245 3246 if (DashX.isUnknown()) 3247 Diags.Report(diag::err_drv_invalid_value) 3248 << A->getAsString(Args) << A->getValue(); 3249 3250 if (Preprocessed) 3251 DashX = DashX.getPreprocessed(); 3252 // A regular header is considered mutually exclusive with a header unit. 3253 if (HUK != InputKind::HeaderUnit_None) { 3254 DashX = DashX.withHeaderUnit(HUK); 3255 IsHeaderFile = true; 3256 } else if (IsHeaderFile) 3257 DashX = DashX.getHeader(); 3258 if (ModuleMap) 3259 DashX = DashX.withFormat(InputKind::ModuleMap); 3260 } 3261 3262 // '-' is the default input if none is given. 3263 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 3264 Opts.Inputs.clear(); 3265 if (Inputs.empty()) 3266 Inputs.push_back("-"); 3267 3268 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 3269 Inputs.size() > 1) 3270 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 3271 3272 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 3273 InputKind IK = DashX; 3274 if (IK.isUnknown()) { 3275 IK = FrontendOptions::getInputKindForExtension( 3276 StringRef(Inputs[i]).rsplit('.').second); 3277 // FIXME: Warn on this? 3278 if (IK.isUnknown()) 3279 IK = Language::C; 3280 // FIXME: Remove this hack. 3281 if (i == 0) 3282 DashX = IK; 3283 } 3284 3285 bool IsSystem = false; 3286 3287 // The -emit-module action implicitly takes a module map. 3288 if (Opts.ProgramAction == frontend::GenerateModule && 3289 IK.getFormat() == InputKind::Source) { 3290 IK = IK.withFormat(InputKind::ModuleMap); 3291 IsSystem = Opts.IsSystemModule; 3292 } 3293 3294 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 3295 } 3296 3297 Opts.DashX = DashX; 3298 3299 return Diags.getNumErrors() == NumErrorsBefore; 3300 } 3301 3302 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 3303 void *MainAddr) { 3304 std::string ClangExecutable = 3305 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 3306 return Driver::GetResourcesPath(ClangExecutable); 3307 } 3308 3309 static void GenerateHeaderSearchArgs(const HeaderSearchOptions &Opts, 3310 ArgumentConsumer Consumer) { 3311 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 3312 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \ 3313 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 3314 #include "clang/Driver/Options.inc" 3315 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3316 3317 if (Opts.UseLibcxx) 3318 GenerateArg(Consumer, OPT_stdlib_EQ, "libc++"); 3319 3320 if (!Opts.ModuleCachePath.empty()) 3321 GenerateArg(Consumer, OPT_fmodules_cache_path, Opts.ModuleCachePath); 3322 3323 for (const auto &File : Opts.PrebuiltModuleFiles) 3324 GenerateArg(Consumer, OPT_fmodule_file, File.first + "=" + File.second); 3325 3326 for (const auto &Path : Opts.PrebuiltModulePaths) 3327 GenerateArg(Consumer, OPT_fprebuilt_module_path, Path); 3328 3329 for (const auto &Macro : Opts.ModulesIgnoreMacros) 3330 GenerateArg(Consumer, OPT_fmodules_ignore_macro, Macro.val()); 3331 3332 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 3333 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 3334 std::optional<bool> IsFramework, 3335 std::optional<bool> IgnoreSysRoot) { 3336 return llvm::is_contained(Groups, Entry.Group) && 3337 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 3338 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 3339 }; 3340 3341 auto It = Opts.UserEntries.begin(); 3342 auto End = Opts.UserEntries.end(); 3343 3344 // Add -I... and -F... options in order. 3345 for (; It < End && Matches(*It, {frontend::Angled}, std::nullopt, true); 3346 ++It) { 3347 OptSpecifier Opt = [It, Matches]() { 3348 if (Matches(*It, frontend::Angled, true, true)) 3349 return OPT_F; 3350 if (Matches(*It, frontend::Angled, false, true)) 3351 return OPT_I; 3352 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 3353 }(); 3354 3355 GenerateArg(Consumer, Opt, It->Path); 3356 } 3357 3358 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 3359 // have already been generated as "-I[xx]yy". If that's the case, their 3360 // position on command line was such that this has no semantic impact on 3361 // include paths. 3362 for (; It < End && 3363 Matches(*It, {frontend::After, frontend::Angled}, false, true); 3364 ++It) { 3365 OptSpecifier Opt = 3366 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 3367 GenerateArg(Consumer, Opt, It->Path); 3368 } 3369 3370 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3371 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3372 // command line was such that this has no semantic impact on include paths. 3373 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3374 GenerateArg(Consumer, OPT_idirafter, It->Path); 3375 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3376 GenerateArg(Consumer, OPT_iquote, It->Path); 3377 for (; It < End && Matches(*It, {frontend::System}, false, std::nullopt); 3378 ++It) 3379 GenerateArg(Consumer, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3380 It->Path); 3381 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3382 GenerateArg(Consumer, OPT_iframework, It->Path); 3383 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3384 GenerateArg(Consumer, OPT_iframeworkwithsysroot, It->Path); 3385 3386 // Add the paths for the various language specific isystem flags. 3387 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3388 GenerateArg(Consumer, OPT_c_isystem, It->Path); 3389 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3390 GenerateArg(Consumer, OPT_cxx_isystem, It->Path); 3391 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3392 GenerateArg(Consumer, OPT_objc_isystem, It->Path); 3393 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3394 GenerateArg(Consumer, OPT_objcxx_isystem, It->Path); 3395 3396 // Add the internal paths from a driver that detects standard include paths. 3397 // Note: Some paths that came from "-internal-isystem" arguments may have 3398 // already been generated as "-isystem". If that's the case, their position on 3399 // command line was such that this has no semantic impact on include paths. 3400 for (; It < End && 3401 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3402 ++It) { 3403 OptSpecifier Opt = It->Group == frontend::System 3404 ? OPT_internal_isystem 3405 : OPT_internal_externc_isystem; 3406 GenerateArg(Consumer, Opt, It->Path); 3407 } 3408 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3409 GenerateArg(Consumer, OPT_internal_iframework, It->Path); 3410 3411 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3412 3413 // Add the path prefixes which are implicitly treated as being system headers. 3414 for (const auto &P : Opts.SystemHeaderPrefixes) { 3415 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3416 : OPT_no_system_header_prefix; 3417 GenerateArg(Consumer, Opt, P.Prefix); 3418 } 3419 3420 for (const std::string &F : Opts.VFSOverlayFiles) 3421 GenerateArg(Consumer, OPT_ivfsoverlay, F); 3422 } 3423 3424 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3425 DiagnosticsEngine &Diags, 3426 const std::string &WorkingDir) { 3427 unsigned NumErrorsBefore = Diags.getNumErrors(); 3428 3429 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3430 3431 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \ 3432 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 3433 #include "clang/Driver/Options.inc" 3434 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3435 3436 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3437 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3438 3439 // Canonicalize -fmodules-cache-path before storing it. 3440 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3441 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3442 if (WorkingDir.empty()) 3443 llvm::sys::fs::make_absolute(P); 3444 else 3445 llvm::sys::fs::make_absolute(WorkingDir, P); 3446 } 3447 llvm::sys::path::remove_dots(P); 3448 Opts.ModuleCachePath = std::string(P); 3449 3450 // Only the -fmodule-file=<name>=<file> form. 3451 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3452 StringRef Val = A->getValue(); 3453 if (Val.contains('=')) { 3454 auto Split = Val.split('='); 3455 Opts.PrebuiltModuleFiles.insert_or_assign( 3456 std::string(Split.first), std::string(Split.second)); 3457 } 3458 } 3459 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3460 Opts.AddPrebuiltModulePath(A->getValue()); 3461 3462 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3463 StringRef MacroDef = A->getValue(); 3464 Opts.ModulesIgnoreMacros.insert( 3465 llvm::CachedHashString(MacroDef.split('=').first)); 3466 } 3467 3468 // Add -I... and -F... options in order. 3469 bool IsSysrootSpecified = 3470 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3471 3472 // Expand a leading `=` to the sysroot if one was passed (and it's not a 3473 // framework flag). 3474 auto PrefixHeaderPath = [IsSysrootSpecified, 3475 &Opts](const llvm::opt::Arg *A, 3476 bool IsFramework = false) -> std::string { 3477 assert(A->getNumValues() && "Unexpected empty search path flag!"); 3478 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3479 SmallString<32> Buffer; 3480 llvm::sys::path::append(Buffer, Opts.Sysroot, 3481 llvm::StringRef(A->getValue()).substr(1)); 3482 return std::string(Buffer); 3483 } 3484 return A->getValue(); 3485 }; 3486 3487 for (const auto *A : Args.filtered(OPT_I, OPT_F)) { 3488 bool IsFramework = A->getOption().matches(OPT_F); 3489 Opts.AddPath(PrefixHeaderPath(A, IsFramework), frontend::Angled, 3490 IsFramework, /*IgnoreSysroot=*/true); 3491 } 3492 3493 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3494 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3495 for (const auto *A : 3496 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3497 if (A->getOption().matches(OPT_iprefix)) 3498 Prefix = A->getValue(); 3499 else if (A->getOption().matches(OPT_iwithprefix)) 3500 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3501 else 3502 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3503 } 3504 3505 for (const auto *A : Args.filtered(OPT_idirafter)) 3506 Opts.AddPath(PrefixHeaderPath(A), frontend::After, false, true); 3507 for (const auto *A : Args.filtered(OPT_iquote)) 3508 Opts.AddPath(PrefixHeaderPath(A), frontend::Quoted, false, true); 3509 3510 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) { 3511 if (A->getOption().matches(OPT_iwithsysroot)) { 3512 Opts.AddPath(A->getValue(), frontend::System, false, 3513 /*IgnoreSysRoot=*/false); 3514 continue; 3515 } 3516 Opts.AddPath(PrefixHeaderPath(A), frontend::System, false, true); 3517 } 3518 for (const auto *A : Args.filtered(OPT_iframework)) 3519 Opts.AddPath(A->getValue(), frontend::System, true, true); 3520 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3521 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3522 /*IgnoreSysRoot=*/false); 3523 3524 // Add the paths for the various language specific isystem flags. 3525 for (const auto *A : Args.filtered(OPT_c_isystem)) 3526 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3527 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3528 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3529 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3530 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3531 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3532 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3533 3534 // Add the internal paths from a driver that detects standard include paths. 3535 for (const auto *A : 3536 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3537 frontend::IncludeDirGroup Group = frontend::System; 3538 if (A->getOption().matches(OPT_internal_externc_isystem)) 3539 Group = frontend::ExternCSystem; 3540 Opts.AddPath(A->getValue(), Group, false, true); 3541 } 3542 for (const auto *A : Args.filtered(OPT_internal_iframework)) 3543 Opts.AddPath(A->getValue(), frontend::System, true, true); 3544 3545 // Add the path prefixes which are implicitly treated as being system headers. 3546 for (const auto *A : 3547 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3548 Opts.AddSystemHeaderPrefix( 3549 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3550 3551 for (const auto *A : Args.filtered(OPT_ivfsoverlay, OPT_vfsoverlay)) 3552 Opts.AddVFSOverlayFile(A->getValue()); 3553 3554 return Diags.getNumErrors() == NumErrorsBefore; 3555 } 3556 3557 static void GenerateAPINotesArgs(const APINotesOptions &Opts, 3558 ArgumentConsumer Consumer) { 3559 if (!Opts.SwiftVersion.empty()) 3560 GenerateArg(Consumer, OPT_fapinotes_swift_version, 3561 Opts.SwiftVersion.getAsString()); 3562 3563 for (const auto &Path : Opts.ModuleSearchPaths) 3564 GenerateArg(Consumer, OPT_iapinotes_modules, Path); 3565 } 3566 3567 static void ParseAPINotesArgs(APINotesOptions &Opts, ArgList &Args, 3568 DiagnosticsEngine &diags) { 3569 if (const Arg *A = Args.getLastArg(OPT_fapinotes_swift_version)) { 3570 if (Opts.SwiftVersion.tryParse(A->getValue())) 3571 diags.Report(diag::err_drv_invalid_value) 3572 << A->getAsString(Args) << A->getValue(); 3573 } 3574 for (const Arg *A : Args.filtered(OPT_iapinotes_modules)) 3575 Opts.ModuleSearchPaths.push_back(A->getValue()); 3576 } 3577 3578 static void GeneratePointerAuthArgs(const LangOptions &Opts, 3579 ArgumentConsumer Consumer) { 3580 if (Opts.PointerAuthIntrinsics) 3581 GenerateArg(Consumer, OPT_fptrauth_intrinsics); 3582 if (Opts.PointerAuthCalls) 3583 GenerateArg(Consumer, OPT_fptrauth_calls); 3584 if (Opts.PointerAuthReturns) 3585 GenerateArg(Consumer, OPT_fptrauth_returns); 3586 if (Opts.PointerAuthIndirectGotos) 3587 GenerateArg(Consumer, OPT_fptrauth_indirect_gotos); 3588 if (Opts.PointerAuthAuthTraps) 3589 GenerateArg(Consumer, OPT_fptrauth_auth_traps); 3590 if (Opts.PointerAuthVTPtrAddressDiscrimination) 3591 GenerateArg(Consumer, OPT_fptrauth_vtable_pointer_address_discrimination); 3592 if (Opts.PointerAuthVTPtrTypeDiscrimination) 3593 GenerateArg(Consumer, OPT_fptrauth_vtable_pointer_type_discrimination); 3594 if (Opts.PointerAuthTypeInfoVTPtrDiscrimination) 3595 GenerateArg(Consumer, OPT_fptrauth_type_info_vtable_pointer_discrimination); 3596 if (Opts.PointerAuthFunctionTypeDiscrimination) 3597 GenerateArg(Consumer, OPT_fptrauth_function_pointer_type_discrimination); 3598 if (Opts.PointerAuthInitFini) 3599 GenerateArg(Consumer, OPT_fptrauth_init_fini); 3600 if (Opts.PointerAuthInitFiniAddressDiscrimination) 3601 GenerateArg(Consumer, OPT_fptrauth_init_fini_address_discrimination); 3602 if (Opts.PointerAuthELFGOT) 3603 GenerateArg(Consumer, OPT_fptrauth_elf_got); 3604 if (Opts.AArch64JumpTableHardening) 3605 GenerateArg(Consumer, OPT_faarch64_jump_table_hardening); 3606 if (Opts.PointerAuthObjcIsa) 3607 GenerateArg(Consumer, OPT_fptrauth_objc_isa); 3608 if (Opts.PointerAuthObjcInterfaceSel) 3609 GenerateArg(Consumer, OPT_fptrauth_objc_interface_sel); 3610 if (Opts.PointerAuthObjcClassROPointers) 3611 GenerateArg(Consumer, OPT_fptrauth_objc_class_ro); 3612 if (Opts.PointerAuthBlockDescriptorPointers) 3613 GenerateArg(Consumer, OPT_fptrauth_block_descriptor_pointers); 3614 } 3615 3616 static void ParsePointerAuthArgs(LangOptions &Opts, ArgList &Args, 3617 DiagnosticsEngine &Diags) { 3618 Opts.PointerAuthIntrinsics = Args.hasArg(OPT_fptrauth_intrinsics); 3619 Opts.PointerAuthCalls = Args.hasArg(OPT_fptrauth_calls); 3620 Opts.PointerAuthReturns = Args.hasArg(OPT_fptrauth_returns); 3621 Opts.PointerAuthIndirectGotos = Args.hasArg(OPT_fptrauth_indirect_gotos); 3622 Opts.PointerAuthAuthTraps = Args.hasArg(OPT_fptrauth_auth_traps); 3623 Opts.PointerAuthVTPtrAddressDiscrimination = 3624 Args.hasArg(OPT_fptrauth_vtable_pointer_address_discrimination); 3625 Opts.PointerAuthVTPtrTypeDiscrimination = 3626 Args.hasArg(OPT_fptrauth_vtable_pointer_type_discrimination); 3627 Opts.PointerAuthTypeInfoVTPtrDiscrimination = 3628 Args.hasArg(OPT_fptrauth_type_info_vtable_pointer_discrimination); 3629 Opts.PointerAuthFunctionTypeDiscrimination = 3630 Args.hasArg(OPT_fptrauth_function_pointer_type_discrimination); 3631 Opts.PointerAuthInitFini = Args.hasArg(OPT_fptrauth_init_fini); 3632 Opts.PointerAuthInitFiniAddressDiscrimination = 3633 Args.hasArg(OPT_fptrauth_init_fini_address_discrimination); 3634 Opts.PointerAuthELFGOT = Args.hasArg(OPT_fptrauth_elf_got); 3635 Opts.AArch64JumpTableHardening = 3636 Args.hasArg(OPT_faarch64_jump_table_hardening); 3637 Opts.PointerAuthBlockDescriptorPointers = 3638 Args.hasArg(OPT_fptrauth_block_descriptor_pointers); 3639 Opts.PointerAuthObjcIsa = Args.hasArg(OPT_fptrauth_objc_isa); 3640 Opts.PointerAuthObjcClassROPointers = Args.hasArg(OPT_fptrauth_objc_class_ro); 3641 Opts.PointerAuthObjcInterfaceSel = 3642 Args.hasArg(OPT_fptrauth_objc_interface_sel); 3643 3644 if (Opts.PointerAuthObjcInterfaceSel) 3645 Opts.PointerAuthObjcInterfaceSelKey = 3646 static_cast<unsigned>(PointerAuthSchema::ARM8_3Key::ASDB); 3647 } 3648 3649 /// Check if input file kind and language standard are compatible. 3650 static bool IsInputCompatibleWithStandard(InputKind IK, 3651 const LangStandard &S) { 3652 switch (IK.getLanguage()) { 3653 case Language::Unknown: 3654 case Language::LLVM_IR: 3655 case Language::CIR: 3656 llvm_unreachable("should not parse language flags for this input"); 3657 3658 case Language::C: 3659 case Language::ObjC: 3660 return S.getLanguage() == Language::C; 3661 3662 case Language::OpenCL: 3663 return S.getLanguage() == Language::OpenCL || 3664 S.getLanguage() == Language::OpenCLCXX; 3665 3666 case Language::OpenCLCXX: 3667 return S.getLanguage() == Language::OpenCLCXX; 3668 3669 case Language::CXX: 3670 case Language::ObjCXX: 3671 return S.getLanguage() == Language::CXX; 3672 3673 case Language::CUDA: 3674 // FIXME: What -std= values should be permitted for CUDA compilations? 3675 return S.getLanguage() == Language::CUDA || 3676 S.getLanguage() == Language::CXX; 3677 3678 case Language::HIP: 3679 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3680 3681 case Language::Asm: 3682 // Accept (and ignore) all -std= values. 3683 // FIXME: The -std= value is not ignored; it affects the tokenization 3684 // and preprocessing rules if we're preprocessing this asm input. 3685 return true; 3686 3687 case Language::HLSL: 3688 return S.getLanguage() == Language::HLSL; 3689 } 3690 3691 llvm_unreachable("unexpected input language"); 3692 } 3693 3694 /// Get language name for given input kind. 3695 static StringRef GetInputKindName(InputKind IK) { 3696 switch (IK.getLanguage()) { 3697 case Language::C: 3698 return "C"; 3699 case Language::ObjC: 3700 return "Objective-C"; 3701 case Language::CXX: 3702 return "C++"; 3703 case Language::ObjCXX: 3704 return "Objective-C++"; 3705 case Language::OpenCL: 3706 return "OpenCL"; 3707 case Language::OpenCLCXX: 3708 return "C++ for OpenCL"; 3709 case Language::CUDA: 3710 return "CUDA"; 3711 case Language::HIP: 3712 return "HIP"; 3713 3714 case Language::Asm: 3715 return "Asm"; 3716 case Language::LLVM_IR: 3717 return "LLVM IR"; 3718 case Language::CIR: 3719 return "Clang IR"; 3720 3721 case Language::HLSL: 3722 return "HLSL"; 3723 3724 case Language::Unknown: 3725 break; 3726 } 3727 llvm_unreachable("unknown input language"); 3728 } 3729 3730 static StringRef getExceptionHandlingName(unsigned EHK) { 3731 switch (static_cast<LangOptions::ExceptionHandlingKind>(EHK)) { 3732 case LangOptions::ExceptionHandlingKind::None: 3733 return "none"; 3734 case LangOptions::ExceptionHandlingKind::DwarfCFI: 3735 return "dwarf"; 3736 case LangOptions::ExceptionHandlingKind::SjLj: 3737 return "sjlj"; 3738 case LangOptions::ExceptionHandlingKind::WinEH: 3739 return "seh"; 3740 case LangOptions::ExceptionHandlingKind::Wasm: 3741 return "wasm"; 3742 } 3743 3744 llvm_unreachable("covered switch"); 3745 } 3746 3747 void CompilerInvocationBase::GenerateLangArgs(const LangOptions &Opts, 3748 ArgumentConsumer Consumer, 3749 const llvm::Triple &T, 3750 InputKind IK) { 3751 if (IK.getFormat() == InputKind::Precompiled || 3752 IK.getLanguage() == Language::LLVM_IR || 3753 IK.getLanguage() == Language::CIR) { 3754 if (Opts.ObjCAutoRefCount) 3755 GenerateArg(Consumer, OPT_fobjc_arc); 3756 if (Opts.PICLevel != 0) 3757 GenerateArg(Consumer, OPT_pic_level, Twine(Opts.PICLevel)); 3758 if (Opts.PIE) 3759 GenerateArg(Consumer, OPT_pic_is_pie); 3760 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3761 GenerateArg(Consumer, OPT_fsanitize_EQ, Sanitizer); 3762 if (Opts.ExceptionHandling) { 3763 GenerateArg(Consumer, OPT_exception_model, 3764 getExceptionHandlingName(Opts.ExceptionHandling)); 3765 } 3766 3767 return; 3768 } 3769 3770 OptSpecifier StdOpt; 3771 switch (Opts.LangStd) { 3772 case LangStandard::lang_opencl10: 3773 case LangStandard::lang_opencl11: 3774 case LangStandard::lang_opencl12: 3775 case LangStandard::lang_opencl20: 3776 case LangStandard::lang_opencl30: 3777 case LangStandard::lang_openclcpp10: 3778 case LangStandard::lang_openclcpp2021: 3779 StdOpt = OPT_cl_std_EQ; 3780 break; 3781 default: 3782 StdOpt = OPT_std_EQ; 3783 break; 3784 } 3785 3786 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3787 GenerateArg(Consumer, StdOpt, LangStandard.getName()); 3788 3789 if (Opts.IncludeDefaultHeader) 3790 GenerateArg(Consumer, OPT_finclude_default_header); 3791 if (Opts.DeclareOpenCLBuiltins) 3792 GenerateArg(Consumer, OPT_fdeclare_opencl_builtins); 3793 3794 const LangOptions *LangOpts = &Opts; 3795 3796 #define LANG_OPTION_WITH_MARSHALLING(...) \ 3797 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 3798 #include "clang/Driver/Options.inc" 3799 #undef LANG_OPTION_WITH_MARSHALLING 3800 3801 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3802 3803 if (Opts.ObjC) { 3804 GenerateArg(Consumer, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString()); 3805 3806 if (Opts.GC == LangOptions::GCOnly) 3807 GenerateArg(Consumer, OPT_fobjc_gc_only); 3808 else if (Opts.GC == LangOptions::HybridGC) 3809 GenerateArg(Consumer, OPT_fobjc_gc); 3810 else if (Opts.ObjCAutoRefCount == 1) 3811 GenerateArg(Consumer, OPT_fobjc_arc); 3812 3813 if (Opts.ObjCWeakRuntime) 3814 GenerateArg(Consumer, OPT_fobjc_runtime_has_weak); 3815 3816 if (Opts.ObjCWeak) 3817 GenerateArg(Consumer, OPT_fobjc_weak); 3818 3819 if (Opts.ObjCSubscriptingLegacyRuntime) 3820 GenerateArg(Consumer, OPT_fobjc_subscripting_legacy_runtime); 3821 } 3822 3823 if (Opts.GNUCVersion != 0) { 3824 unsigned Major = Opts.GNUCVersion / 100 / 100; 3825 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3826 unsigned Patch = Opts.GNUCVersion % 100; 3827 GenerateArg(Consumer, OPT_fgnuc_version_EQ, 3828 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch)); 3829 } 3830 3831 if (Opts.IgnoreXCOFFVisibility) 3832 GenerateArg(Consumer, OPT_mignore_xcoff_visibility); 3833 3834 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3835 GenerateArg(Consumer, OPT_ftrapv); 3836 GenerateArg(Consumer, OPT_ftrapv_handler, Opts.OverflowHandler); 3837 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3838 GenerateArg(Consumer, OPT_fwrapv); 3839 } 3840 if (Opts.PointerOverflowDefined) 3841 GenerateArg(Consumer, OPT_fwrapv_pointer); 3842 3843 if (Opts.MSCompatibilityVersion != 0) { 3844 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3845 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3846 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3847 GenerateArg(Consumer, OPT_fms_compatibility_version, 3848 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor)); 3849 } 3850 3851 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) || 3852 T.isOSzOS()) { 3853 if (!Opts.Trigraphs) 3854 GenerateArg(Consumer, OPT_fno_trigraphs); 3855 } else { 3856 if (Opts.Trigraphs) 3857 GenerateArg(Consumer, OPT_ftrigraphs); 3858 } 3859 3860 if (T.isOSzOS() && !Opts.ZOSExt) 3861 GenerateArg(Consumer, OPT_fno_zos_extensions); 3862 else if (Opts.ZOSExt) 3863 GenerateArg(Consumer, OPT_fzos_extensions); 3864 3865 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3866 GenerateArg(Consumer, OPT_fblocks); 3867 3868 if (Opts.ConvergentFunctions) 3869 GenerateArg(Consumer, OPT_fconvergent_functions); 3870 else 3871 GenerateArg(Consumer, OPT_fno_convergent_functions); 3872 3873 if (Opts.NoBuiltin && !Opts.Freestanding) 3874 GenerateArg(Consumer, OPT_fno_builtin); 3875 3876 if (!Opts.NoBuiltin) 3877 for (const auto &Func : Opts.NoBuiltinFuncs) 3878 GenerateArg(Consumer, OPT_fno_builtin_, Func); 3879 3880 if (Opts.LongDoubleSize == 128) 3881 GenerateArg(Consumer, OPT_mlong_double_128); 3882 else if (Opts.LongDoubleSize == 64) 3883 GenerateArg(Consumer, OPT_mlong_double_64); 3884 else if (Opts.LongDoubleSize == 80) 3885 GenerateArg(Consumer, OPT_mlong_double_80); 3886 3887 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3888 3889 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3890 // '-fopenmp-targets='. 3891 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3892 GenerateArg(Consumer, OPT_fopenmp); 3893 3894 if (Opts.OpenMP != 51) 3895 GenerateArg(Consumer, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP)); 3896 3897 if (!Opts.OpenMPUseTLS) 3898 GenerateArg(Consumer, OPT_fnoopenmp_use_tls); 3899 3900 if (Opts.OpenMPIsTargetDevice) 3901 GenerateArg(Consumer, OPT_fopenmp_is_target_device); 3902 3903 if (Opts.OpenMPIRBuilder) 3904 GenerateArg(Consumer, OPT_fopenmp_enable_irbuilder); 3905 } 3906 3907 if (Opts.OpenMPSimd) { 3908 GenerateArg(Consumer, OPT_fopenmp_simd); 3909 3910 if (Opts.OpenMP != 51) 3911 GenerateArg(Consumer, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP)); 3912 } 3913 3914 if (Opts.OpenMPThreadSubscription) 3915 GenerateArg(Consumer, OPT_fopenmp_assume_threads_oversubscription); 3916 3917 if (Opts.OpenMPTeamSubscription) 3918 GenerateArg(Consumer, OPT_fopenmp_assume_teams_oversubscription); 3919 3920 if (Opts.OpenMPTargetDebug != 0) 3921 GenerateArg(Consumer, OPT_fopenmp_target_debug_EQ, 3922 Twine(Opts.OpenMPTargetDebug)); 3923 3924 if (Opts.OpenMPCUDANumSMs != 0) 3925 GenerateArg(Consumer, OPT_fopenmp_cuda_number_of_sm_EQ, 3926 Twine(Opts.OpenMPCUDANumSMs)); 3927 3928 if (Opts.OpenMPCUDABlocksPerSM != 0) 3929 GenerateArg(Consumer, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3930 Twine(Opts.OpenMPCUDABlocksPerSM)); 3931 3932 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3933 GenerateArg(Consumer, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3934 Twine(Opts.OpenMPCUDAReductionBufNum)); 3935 3936 if (!Opts.OMPTargetTriples.empty()) { 3937 std::string Targets; 3938 llvm::raw_string_ostream OS(Targets); 3939 llvm::interleave( 3940 Opts.OMPTargetTriples, OS, 3941 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3942 GenerateArg(Consumer, OPT_offload_targets_EQ, Targets); 3943 } 3944 3945 if (!Opts.OMPHostIRFile.empty()) 3946 GenerateArg(Consumer, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile); 3947 3948 if (Opts.OpenMPCUDAMode) 3949 GenerateArg(Consumer, OPT_fopenmp_cuda_mode); 3950 3951 if (Opts.OpenACC) { 3952 GenerateArg(Consumer, OPT_fopenacc); 3953 if (!Opts.OpenACCMacroOverride.empty()) 3954 GenerateArg(Consumer, OPT_openacc_macro_override, 3955 Opts.OpenACCMacroOverride); 3956 } 3957 3958 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3959 // generated from CodeGenOptions. 3960 3961 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3962 GenerateArg(Consumer, OPT_ffp_contract, "fast"); 3963 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3964 GenerateArg(Consumer, OPT_ffp_contract, "on"); 3965 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3966 GenerateArg(Consumer, OPT_ffp_contract, "off"); 3967 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3968 GenerateArg(Consumer, OPT_ffp_contract, "fast-honor-pragmas"); 3969 3970 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3971 GenerateArg(Consumer, OPT_fsanitize_EQ, Sanitizer); 3972 3973 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3974 for (const std::string &F : Opts.NoSanitizeFiles) 3975 GenerateArg(Consumer, OPT_fsanitize_ignorelist_EQ, F); 3976 3977 switch (Opts.getClangABICompat()) { 3978 case LangOptions::ClangABI::Ver3_8: 3979 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "3.8"); 3980 break; 3981 case LangOptions::ClangABI::Ver4: 3982 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "4.0"); 3983 break; 3984 case LangOptions::ClangABI::Ver6: 3985 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "6.0"); 3986 break; 3987 case LangOptions::ClangABI::Ver7: 3988 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "7.0"); 3989 break; 3990 case LangOptions::ClangABI::Ver9: 3991 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "9.0"); 3992 break; 3993 case LangOptions::ClangABI::Ver11: 3994 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "11.0"); 3995 break; 3996 case LangOptions::ClangABI::Ver12: 3997 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "12.0"); 3998 break; 3999 case LangOptions::ClangABI::Ver14: 4000 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "14.0"); 4001 break; 4002 case LangOptions::ClangABI::Ver15: 4003 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "15.0"); 4004 break; 4005 case LangOptions::ClangABI::Ver17: 4006 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "17.0"); 4007 break; 4008 case LangOptions::ClangABI::Ver18: 4009 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "18.0"); 4010 break; 4011 case LangOptions::ClangABI::Ver19: 4012 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "19.0"); 4013 break; 4014 case LangOptions::ClangABI::Ver20: 4015 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "20.0"); 4016 break; 4017 case LangOptions::ClangABI::Latest: 4018 break; 4019 } 4020 4021 if (Opts.getSignReturnAddressScope() == 4022 LangOptions::SignReturnAddressScopeKind::All) 4023 GenerateArg(Consumer, OPT_msign_return_address_EQ, "all"); 4024 else if (Opts.getSignReturnAddressScope() == 4025 LangOptions::SignReturnAddressScopeKind::NonLeaf) 4026 GenerateArg(Consumer, OPT_msign_return_address_EQ, "non-leaf"); 4027 4028 if (Opts.getSignReturnAddressKey() == 4029 LangOptions::SignReturnAddressKeyKind::BKey) 4030 GenerateArg(Consumer, OPT_msign_return_address_key_EQ, "b_key"); 4031 4032 if (Opts.CXXABI) 4033 GenerateArg(Consumer, OPT_fcxx_abi_EQ, 4034 TargetCXXABI::getSpelling(*Opts.CXXABI)); 4035 4036 if (Opts.RelativeCXXABIVTables) 4037 GenerateArg(Consumer, OPT_fexperimental_relative_cxx_abi_vtables); 4038 else 4039 GenerateArg(Consumer, OPT_fno_experimental_relative_cxx_abi_vtables); 4040 4041 if (Opts.UseTargetPathSeparator) 4042 GenerateArg(Consumer, OPT_ffile_reproducible); 4043 else 4044 GenerateArg(Consumer, OPT_fno_file_reproducible); 4045 4046 for (const auto &MP : Opts.MacroPrefixMap) 4047 GenerateArg(Consumer, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second); 4048 4049 if (!Opts.RandstructSeed.empty()) 4050 GenerateArg(Consumer, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed); 4051 } 4052 4053 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 4054 InputKind IK, const llvm::Triple &T, 4055 std::vector<std::string> &Includes, 4056 DiagnosticsEngine &Diags) { 4057 unsigned NumErrorsBefore = Diags.getNumErrors(); 4058 4059 if (IK.getFormat() == InputKind::Precompiled || 4060 IK.getLanguage() == Language::LLVM_IR || 4061 IK.getLanguage() == Language::CIR) { 4062 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 4063 // PassManager in BackendUtil.cpp. They need to be initialized no matter 4064 // what the input type is. 4065 if (Args.hasArg(OPT_fobjc_arc)) 4066 Opts.ObjCAutoRefCount = 1; 4067 // PICLevel and PIELevel are needed during code generation and this should 4068 // be set regardless of the input type. 4069 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 4070 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 4071 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4072 Diags, Opts.Sanitize); 4073 4074 if (const Arg *A = Args.getLastArg(options::OPT_exception_model)) { 4075 std::optional<LangOptions::ExceptionHandlingKind> EMValue = 4076 llvm::StringSwitch<std::optional<LangOptions::ExceptionHandlingKind>>( 4077 A->getValue()) 4078 .Case("dwarf", LangOptions::ExceptionHandlingKind::DwarfCFI) 4079 .Case("sjlj", LangOptions::ExceptionHandlingKind::SjLj) 4080 .Case("seh", LangOptions::ExceptionHandlingKind::WinEH) 4081 .Case("wasm", LangOptions::ExceptionHandlingKind::Wasm) 4082 .Case("none", LangOptions::ExceptionHandlingKind::None) 4083 .Default(std::nullopt); 4084 if (EMValue) { 4085 Opts.ExceptionHandling = static_cast<unsigned>(*EMValue); 4086 } else { 4087 Diags.Report(diag::err_drv_invalid_value) 4088 << A->getAsString(Args) << A->getValue(); 4089 } 4090 } 4091 4092 return Diags.getNumErrors() == NumErrorsBefore; 4093 } 4094 4095 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 4096 // FIXME: Should we really be parsing this for an Language::Asm input? 4097 4098 // FIXME: Cleanup per-file based stuff. 4099 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 4100 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 4101 LangStd = LangStandard::getLangKind(A->getValue()); 4102 if (LangStd == LangStandard::lang_unspecified) { 4103 Diags.Report(diag::err_drv_invalid_value) 4104 << A->getAsString(Args) << A->getValue(); 4105 // Report supported standards with short description. 4106 for (unsigned KindValue = 0; 4107 KindValue != LangStandard::lang_unspecified; 4108 ++KindValue) { 4109 const LangStandard &Std = LangStandard::getLangStandardForKind( 4110 static_cast<LangStandard::Kind>(KindValue)); 4111 if (IsInputCompatibleWithStandard(IK, Std)) { 4112 auto Diag = Diags.Report(diag::note_drv_use_standard); 4113 Diag << Std.getName() << Std.getDescription(); 4114 unsigned NumAliases = 0; 4115 #define LANGSTANDARD(id, name, lang, desc, features) 4116 #define LANGSTANDARD_ALIAS(id, alias) \ 4117 if (KindValue == LangStandard::lang_##id) ++NumAliases; 4118 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 4119 #include "clang/Basic/LangStandards.def" 4120 Diag << NumAliases; 4121 #define LANGSTANDARD(id, name, lang, desc, features) 4122 #define LANGSTANDARD_ALIAS(id, alias) \ 4123 if (KindValue == LangStandard::lang_##id) Diag << alias; 4124 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 4125 #include "clang/Basic/LangStandards.def" 4126 } 4127 } 4128 } else { 4129 // Valid standard, check to make sure language and standard are 4130 // compatible. 4131 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 4132 if (!IsInputCompatibleWithStandard(IK, Std)) { 4133 Diags.Report(diag::err_drv_argument_not_allowed_with) 4134 << A->getAsString(Args) << GetInputKindName(IK); 4135 } 4136 } 4137 } 4138 4139 // -cl-std only applies for OpenCL language standards. 4140 // Override the -std option in this case. 4141 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 4142 LangStandard::Kind OpenCLLangStd 4143 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 4144 .Cases("cl", "CL", LangStandard::lang_opencl10) 4145 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 4146 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 4147 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 4148 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 4149 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 4150 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 4151 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 4152 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 4153 .Default(LangStandard::lang_unspecified); 4154 4155 if (OpenCLLangStd == LangStandard::lang_unspecified) { 4156 Diags.Report(diag::err_drv_invalid_value) 4157 << A->getAsString(Args) << A->getValue(); 4158 } 4159 else 4160 LangStd = OpenCLLangStd; 4161 } 4162 4163 // These need to be parsed now. They are used to set OpenCL defaults. 4164 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 4165 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 4166 4167 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 4168 4169 // The key paths of codegen options defined in Options.td start with 4170 // "LangOpts->". Let's provide the expected variable name and type. 4171 LangOptions *LangOpts = &Opts; 4172 4173 #define LANG_OPTION_WITH_MARSHALLING(...) \ 4174 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4175 #include "clang/Driver/Options.inc" 4176 #undef LANG_OPTION_WITH_MARSHALLING 4177 4178 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4179 StringRef Name = A->getValue(); 4180 if (Name == "full") { 4181 Opts.CFProtectionBranch = 1; 4182 Opts.CFProtectionReturn = 1; 4183 } else if (Name == "branch") { 4184 Opts.CFProtectionBranch = 1; 4185 } else if (Name == "return") { 4186 Opts.CFProtectionReturn = 1; 4187 } 4188 } 4189 4190 if (Opts.CFProtectionBranch) { 4191 if (const Arg *A = Args.getLastArg(OPT_mcf_branch_label_scheme_EQ)) { 4192 const auto Scheme = 4193 llvm::StringSwitch<CFBranchLabelSchemeKind>(A->getValue()) 4194 #define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \ 4195 .Case(#FlagVal, CFBranchLabelSchemeKind::Kind) 4196 #include "clang/Basic/CFProtectionOptions.def" 4197 .Default(CFBranchLabelSchemeKind::Default); 4198 Opts.setCFBranchLabelScheme(Scheme); 4199 } 4200 } 4201 4202 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 4203 !Args.hasArg(OPT_sycl_std_EQ)) { 4204 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 4205 // provide -sycl-std=, we want to default it to whatever the default SYCL 4206 // version is. I could not find a way to express this with the options 4207 // tablegen because we still want this value to be SYCL_None when the user 4208 // is not in device or host mode. 4209 Opts.setSYCLVersion(LangOptions::SYCL_Default); 4210 } 4211 4212 if (Opts.ObjC) { 4213 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 4214 StringRef value = arg->getValue(); 4215 if (Opts.ObjCRuntime.tryParse(value)) 4216 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 4217 } 4218 4219 if (Args.hasArg(OPT_fobjc_gc_only)) 4220 Opts.setGC(LangOptions::GCOnly); 4221 else if (Args.hasArg(OPT_fobjc_gc)) 4222 Opts.setGC(LangOptions::HybridGC); 4223 else if (Args.hasArg(OPT_fobjc_arc)) { 4224 Opts.ObjCAutoRefCount = 1; 4225 if (!Opts.ObjCRuntime.allowsARC()) 4226 Diags.Report(diag::err_arc_unsupported_on_runtime); 4227 } 4228 4229 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 4230 // whether the feature is actually enabled. This is predominantly 4231 // determined by -fobjc-runtime, but we allow it to be overridden 4232 // from the command line for testing purposes. 4233 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 4234 Opts.ObjCWeakRuntime = 1; 4235 else 4236 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 4237 4238 // ObjCWeak determines whether __weak is actually enabled. 4239 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 4240 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 4241 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 4242 assert(!Opts.ObjCWeak); 4243 } else if (Opts.getGC() != LangOptions::NonGC) { 4244 Diags.Report(diag::err_objc_weak_with_gc); 4245 } else if (!Opts.ObjCWeakRuntime) { 4246 Diags.Report(diag::err_objc_weak_unsupported); 4247 } else { 4248 Opts.ObjCWeak = 1; 4249 } 4250 } else if (Opts.ObjCAutoRefCount) { 4251 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 4252 } 4253 4254 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 4255 Opts.ObjCSubscriptingLegacyRuntime = 4256 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 4257 } 4258 4259 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 4260 // Check that the version has 1 to 3 components and the minor and patch 4261 // versions fit in two decimal digits. 4262 VersionTuple GNUCVer; 4263 bool Invalid = GNUCVer.tryParse(A->getValue()); 4264 unsigned Major = GNUCVer.getMajor(); 4265 unsigned Minor = GNUCVer.getMinor().value_or(0); 4266 unsigned Patch = GNUCVer.getSubminor().value_or(0); 4267 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 4268 Diags.Report(diag::err_drv_invalid_value) 4269 << A->getAsString(Args) << A->getValue(); 4270 } 4271 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 4272 } 4273 4274 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 4275 Opts.IgnoreXCOFFVisibility = 1; 4276 4277 if (Args.hasArg(OPT_ftrapv)) { 4278 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 4279 // Set the handler, if one is specified. 4280 Opts.OverflowHandler = 4281 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 4282 } 4283 else if (Args.hasArg(OPT_fwrapv)) 4284 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 4285 if (Args.hasArg(OPT_fwrapv_pointer)) 4286 Opts.PointerOverflowDefined = true; 4287 4288 Opts.MSCompatibilityVersion = 0; 4289 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 4290 VersionTuple VT; 4291 if (VT.tryParse(A->getValue())) 4292 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 4293 << A->getValue(); 4294 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 4295 VT.getMinor().value_or(0) * 100000 + 4296 VT.getSubminor().value_or(0); 4297 } 4298 4299 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 4300 // is specified, or -std is set to a conforming mode. 4301 // Trigraphs are disabled by default in C++17 and C23 onwards. 4302 // For z/OS, trigraphs are enabled by default (without regard to the above). 4303 Opts.Trigraphs = 4304 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) || 4305 T.isOSzOS(); 4306 Opts.Trigraphs = 4307 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 4308 4309 Opts.ZOSExt = 4310 Args.hasFlag(OPT_fzos_extensions, OPT_fno_zos_extensions, T.isOSzOS()); 4311 4312 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 4313 && Opts.OpenCLVersion == 200); 4314 4315 bool HasConvergentOperations = Opts.isTargetDevice() || Opts.OpenCL || 4316 Opts.HLSL || T.isAMDGPU() || T.isNVPTX(); 4317 Opts.ConvergentFunctions = 4318 Args.hasFlag(OPT_fconvergent_functions, OPT_fno_convergent_functions, 4319 HasConvergentOperations); 4320 4321 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 4322 if (!Opts.NoBuiltin) 4323 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 4324 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 4325 if (A->getOption().matches(options::OPT_mlong_double_64)) 4326 Opts.LongDoubleSize = 64; 4327 else if (A->getOption().matches(options::OPT_mlong_double_80)) 4328 Opts.LongDoubleSize = 80; 4329 else if (A->getOption().matches(options::OPT_mlong_double_128)) 4330 Opts.LongDoubleSize = 128; 4331 else 4332 Opts.LongDoubleSize = 0; 4333 } 4334 if (Opts.FastRelaxedMath || Opts.CLUnsafeMath) 4335 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4336 4337 llvm::sort(Opts.ModuleFeatures); 4338 4339 // -mrtd option 4340 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 4341 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 4342 Diags.Report(diag::err_drv_argument_not_allowed_with) 4343 << A->getSpelling() << "-fdefault-calling-conv"; 4344 else { 4345 switch (T.getArch()) { 4346 case llvm::Triple::x86: 4347 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 4348 break; 4349 case llvm::Triple::m68k: 4350 Opts.setDefaultCallingConv(LangOptions::DCC_RtdCall); 4351 break; 4352 default: 4353 Diags.Report(diag::err_drv_argument_not_allowed_with) 4354 << A->getSpelling() << T.getTriple(); 4355 } 4356 } 4357 } 4358 4359 // Check if -fopenmp is specified and set default version to 5.1. 4360 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 51 : 0; 4361 // Check if -fopenmp-simd is specified. 4362 bool IsSimdSpecified = 4363 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 4364 /*Default=*/false); 4365 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 4366 Opts.OpenMPUseTLS = 4367 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 4368 Opts.OpenMPIsTargetDevice = 4369 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_target_device); 4370 Opts.OpenMPIRBuilder = 4371 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 4372 bool IsTargetSpecified = 4373 Opts.OpenMPIsTargetDevice || Args.hasArg(options::OPT_offload_targets_EQ); 4374 4375 if (Opts.OpenMP || Opts.OpenMPSimd) { 4376 if (int Version = getLastArgIntValue( 4377 Args, OPT_fopenmp_version_EQ, 4378 (IsSimdSpecified || IsTargetSpecified) ? 51 : Opts.OpenMP, Diags)) 4379 Opts.OpenMP = Version; 4380 // Provide diagnostic when a given target is not expected to be an OpenMP 4381 // device or host. 4382 if (!Opts.OpenMPIsTargetDevice) { 4383 switch (T.getArch()) { 4384 default: 4385 break; 4386 // Add unsupported host targets here: 4387 case llvm::Triple::nvptx: 4388 case llvm::Triple::nvptx64: 4389 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 4390 break; 4391 } 4392 } 4393 } 4394 4395 // Set the flag to prevent the implementation from emitting device exception 4396 // handling code for those requiring so. 4397 if ((Opts.OpenMPIsTargetDevice && (T.isNVPTX() || T.isAMDGCN())) || 4398 Opts.OpenCLCPlusPlus) { 4399 4400 Opts.Exceptions = 0; 4401 Opts.CXXExceptions = 0; 4402 } 4403 if (Opts.OpenMPIsTargetDevice && T.isNVPTX()) { 4404 Opts.OpenMPCUDANumSMs = 4405 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 4406 Opts.OpenMPCUDANumSMs, Diags); 4407 Opts.OpenMPCUDABlocksPerSM = 4408 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 4409 Opts.OpenMPCUDABlocksPerSM, Diags); 4410 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 4411 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 4412 Opts.OpenMPCUDAReductionBufNum, Diags); 4413 } 4414 4415 // Set the value of the debugging flag used in the new offloading device RTL. 4416 // Set either by a specific value or to a default if not specified. 4417 if (Opts.OpenMPIsTargetDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 4418 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 4419 Opts.OpenMPTargetDebug = getLastArgIntValue( 4420 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 4421 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 4422 Opts.OpenMPTargetDebug = 1; 4423 } 4424 4425 if (Opts.OpenMPIsTargetDevice) { 4426 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 4427 Opts.OpenMPTeamSubscription = true; 4428 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 4429 Opts.OpenMPThreadSubscription = true; 4430 } 4431 4432 // Get the OpenMP target triples if any. 4433 if (Arg *A = Args.getLastArg(options::OPT_offload_targets_EQ)) { 4434 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 4435 auto getArchPtrSize = [](const llvm::Triple &T) { 4436 if (T.isArch16Bit()) 4437 return Arch16Bit; 4438 if (T.isArch32Bit()) 4439 return Arch32Bit; 4440 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 4441 return Arch64Bit; 4442 }; 4443 4444 for (unsigned i = 0; i < A->getNumValues(); ++i) { 4445 llvm::Triple TT(A->getValue(i)); 4446 4447 if (TT.getArch() == llvm::Triple::UnknownArch || 4448 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 4449 TT.getArch() == llvm::Triple::spirv64 || 4450 TT.getArch() == llvm::Triple::systemz || 4451 TT.getArch() == llvm::Triple::loongarch64 || 4452 TT.getArch() == llvm::Triple::nvptx || 4453 TT.getArch() == llvm::Triple::nvptx64 || TT.isAMDGCN() || 4454 TT.getArch() == llvm::Triple::x86 || 4455 TT.getArch() == llvm::Triple::x86_64)) 4456 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 4457 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 4458 Diags.Report(diag::err_drv_incompatible_omp_arch) 4459 << A->getValue(i) << T.str(); 4460 else 4461 Opts.OMPTargetTriples.push_back(TT); 4462 } 4463 } 4464 4465 // Get OpenMP host file path if any and report if a non existent file is 4466 // found 4467 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 4468 Opts.OMPHostIRFile = A->getValue(); 4469 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 4470 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 4471 << Opts.OMPHostIRFile; 4472 } 4473 4474 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 4475 Opts.OpenMPCUDAMode = Opts.OpenMPIsTargetDevice && 4476 (T.isNVPTX() || T.isAMDGCN()) && 4477 Args.hasArg(options::OPT_fopenmp_cuda_mode); 4478 4479 // OpenACC Configuration. 4480 if (Args.hasArg(options::OPT_fopenacc)) { 4481 Opts.OpenACC = true; 4482 4483 if (Arg *A = Args.getLastArg(options::OPT_openacc_macro_override)) 4484 Opts.OpenACCMacroOverride = A->getValue(); 4485 } 4486 4487 // FIXME: Eliminate this dependency. 4488 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 4489 OptSize = getOptimizationLevelSize(Args); 4490 Opts.Optimize = Opt != 0; 4491 Opts.OptimizeSize = OptSize != 0; 4492 4493 // This is the __NO_INLINE__ define, which just depends on things like the 4494 // optimization level and -fno-inline, not actually whether the backend has 4495 // inlining enabled. 4496 Opts.NoInlineDefine = !Opts.Optimize; 4497 if (Arg *InlineArg = Args.getLastArg( 4498 options::OPT_finline_functions, options::OPT_finline_hint_functions, 4499 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 4500 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 4501 Opts.NoInlineDefine = true; 4502 4503 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 4504 StringRef Val = A->getValue(); 4505 if (Val == "fast") 4506 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4507 else if (Val == "on") 4508 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 4509 else if (Val == "off") 4510 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 4511 else if (Val == "fast-honor-pragmas") 4512 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 4513 else 4514 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 4515 } 4516 4517 if (auto *A = 4518 Args.getLastArg(OPT_fsanitize_undefined_ignore_overflow_pattern_EQ)) { 4519 for (int i = 0, n = A->getNumValues(); i != n; ++i) { 4520 Opts.OverflowPatternExclusionMask |= 4521 llvm::StringSwitch<unsigned>(A->getValue(i)) 4522 .Case("none", LangOptionsBase::None) 4523 .Case("all", LangOptionsBase::All) 4524 .Case("add-unsigned-overflow-test", 4525 LangOptionsBase::AddUnsignedOverflowTest) 4526 .Case("add-signed-overflow-test", 4527 LangOptionsBase::AddSignedOverflowTest) 4528 .Case("negated-unsigned-const", LangOptionsBase::NegUnsignedConst) 4529 .Case("unsigned-post-decr-while", 4530 LangOptionsBase::PostDecrInWhile) 4531 .Default(0); 4532 } 4533 } 4534 4535 // Parse -fsanitize= arguments. 4536 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4537 Diags, Opts.Sanitize); 4538 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 4539 std::vector<std::string> systemIgnorelists = 4540 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 4541 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 4542 systemIgnorelists.begin(), 4543 systemIgnorelists.end()); 4544 4545 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 4546 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4547 4548 StringRef Ver = A->getValue(); 4549 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4550 unsigned Major, Minor = 0; 4551 4552 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4553 // y or y.0 (4 <= y <= current version). 4554 if (!VerParts.first.starts_with("0") && 4555 !VerParts.first.getAsInteger(10, Major) && 3 <= Major && 4556 Major <= MAX_CLANG_ABI_COMPAT_VERSION && 4557 (Major == 3 4558 ? VerParts.second.size() == 1 && 4559 !VerParts.second.getAsInteger(10, Minor) 4560 : VerParts.first.size() == Ver.size() || VerParts.second == "0")) { 4561 // Got a valid version number. 4562 if (Major == 3 && Minor <= 8) 4563 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4564 else if (Major <= 4) 4565 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4566 else if (Major <= 6) 4567 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4568 else if (Major <= 7) 4569 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4570 else if (Major <= 9) 4571 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4572 else if (Major <= 11) 4573 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4574 else if (Major <= 12) 4575 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4576 else if (Major <= 14) 4577 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 4578 else if (Major <= 15) 4579 Opts.setClangABICompat(LangOptions::ClangABI::Ver15); 4580 else if (Major <= 17) 4581 Opts.setClangABICompat(LangOptions::ClangABI::Ver17); 4582 else if (Major <= 18) 4583 Opts.setClangABICompat(LangOptions::ClangABI::Ver18); 4584 else if (Major <= 19) 4585 Opts.setClangABICompat(LangOptions::ClangABI::Ver19); 4586 else if (Major <= 20) 4587 Opts.setClangABICompat(LangOptions::ClangABI::Ver20); 4588 } else if (Ver != "latest") { 4589 Diags.Report(diag::err_drv_invalid_value) 4590 << A->getAsString(Args) << A->getValue(); 4591 } 4592 } 4593 4594 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4595 StringRef SignScope = A->getValue(); 4596 4597 if (SignScope.equals_insensitive("none")) 4598 Opts.setSignReturnAddressScope( 4599 LangOptions::SignReturnAddressScopeKind::None); 4600 else if (SignScope.equals_insensitive("all")) 4601 Opts.setSignReturnAddressScope( 4602 LangOptions::SignReturnAddressScopeKind::All); 4603 else if (SignScope.equals_insensitive("non-leaf")) 4604 Opts.setSignReturnAddressScope( 4605 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4606 else 4607 Diags.Report(diag::err_drv_invalid_value) 4608 << A->getAsString(Args) << SignScope; 4609 4610 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4611 StringRef SignKey = A->getValue(); 4612 if (!SignScope.empty() && !SignKey.empty()) { 4613 if (SignKey == "a_key") 4614 Opts.setSignReturnAddressKey( 4615 LangOptions::SignReturnAddressKeyKind::AKey); 4616 else if (SignKey == "b_key") 4617 Opts.setSignReturnAddressKey( 4618 LangOptions::SignReturnAddressKeyKind::BKey); 4619 else 4620 Diags.Report(diag::err_drv_invalid_value) 4621 << A->getAsString(Args) << SignKey; 4622 } 4623 } 4624 } 4625 4626 // The value can be empty, which indicates the system default should be used. 4627 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4628 if (!CXXABI.empty()) { 4629 if (!TargetCXXABI::isABI(CXXABI)) { 4630 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4631 } else { 4632 auto Kind = TargetCXXABI::getKind(CXXABI); 4633 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4634 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4635 else 4636 Opts.CXXABI = Kind; 4637 } 4638 } 4639 4640 Opts.RelativeCXXABIVTables = 4641 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4642 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4643 TargetCXXABI::usesRelativeVTables(T)); 4644 4645 // RTTI is on by default. 4646 bool HasRTTI = !Args.hasArg(options::OPT_fno_rtti); 4647 Opts.OmitVTableRTTI = 4648 Args.hasFlag(options::OPT_fexperimental_omit_vtable_rtti, 4649 options::OPT_fno_experimental_omit_vtable_rtti, false); 4650 if (Opts.OmitVTableRTTI && HasRTTI) 4651 Diags.Report(diag::err_drv_using_omit_rtti_component_without_no_rtti); 4652 4653 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4654 auto Split = StringRef(A).split('='); 4655 Opts.MacroPrefixMap.insert( 4656 {std::string(Split.first), std::string(Split.second)}); 4657 } 4658 4659 Opts.UseTargetPathSeparator = 4660 !Args.getLastArg(OPT_fno_file_reproducible) && 4661 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4662 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4663 Args.getLastArg(OPT_ffile_reproducible)); 4664 4665 // Error if -mvscale-min is unbounded. 4666 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4667 unsigned VScaleMin; 4668 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4669 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4670 } 4671 if (Arg *A = Args.getLastArg(options::OPT_mvscale_streaming_min_EQ)) { 4672 unsigned VScaleMin; 4673 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4674 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4675 } 4676 4677 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4678 std::ifstream SeedFile(A->getValue(0)); 4679 4680 if (!SeedFile.is_open()) 4681 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4682 << A->getValue(0); 4683 4684 std::getline(SeedFile, Opts.RandstructSeed); 4685 } 4686 4687 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4688 Opts.RandstructSeed = A->getValue(0); 4689 4690 // Validate options for HLSL 4691 if (Opts.HLSL) { 4692 // TODO: Revisit restricting SPIR-V to logical once we've figured out how to 4693 // handle PhysicalStorageBuffer64 memory model 4694 if (T.isDXIL() || T.isSPIRVLogical()) { 4695 enum { ShaderModel, VulkanEnv, ShaderStage }; 4696 enum { OS, Environment }; 4697 4698 int ExpectedOS = T.isSPIRVLogical() ? VulkanEnv : ShaderModel; 4699 4700 if (T.getOSName().empty()) { 4701 Diags.Report(diag::err_drv_hlsl_bad_shader_required_in_target) 4702 << ExpectedOS << OS << T.str(); 4703 } else if (T.getEnvironmentName().empty()) { 4704 Diags.Report(diag::err_drv_hlsl_bad_shader_required_in_target) 4705 << ShaderStage << Environment << T.str(); 4706 } else if (!T.isShaderStageEnvironment()) { 4707 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4708 << ShaderStage << T.getEnvironmentName() << T.str(); 4709 } 4710 4711 if (T.isDXIL()) { 4712 if (!T.isShaderModelOS() || T.getOSVersion() == VersionTuple(0)) { 4713 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4714 << ShaderModel << T.getOSName() << T.str(); 4715 } 4716 // Validate that if fnative-half-type is given, that 4717 // the language standard is at least hlsl2018, and that 4718 // the target shader model is at least 6.2. 4719 if (Args.getLastArg(OPT_fnative_half_type)) { 4720 const LangStandard &Std = 4721 LangStandard::getLangStandardForKind(Opts.LangStd); 4722 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018 && 4723 T.getOSVersion() >= VersionTuple(6, 2))) 4724 Diags.Report(diag::err_drv_hlsl_16bit_types_unsupported) 4725 << "-enable-16bit-types" << true << Std.getName() 4726 << T.getOSVersion().getAsString(); 4727 } 4728 } else if (T.isSPIRVLogical()) { 4729 if (!T.isVulkanOS() || T.getVulkanVersion() == VersionTuple(0)) { 4730 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4731 << VulkanEnv << T.getOSName() << T.str(); 4732 } 4733 if (Args.getLastArg(OPT_fnative_half_type)) { 4734 const LangStandard &Std = 4735 LangStandard::getLangStandardForKind(Opts.LangStd); 4736 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018)) 4737 Diags.Report(diag::err_drv_hlsl_16bit_types_unsupported) 4738 << "-fnative-half-type" << false << Std.getName(); 4739 } 4740 } else { 4741 llvm_unreachable("expected DXIL or SPIR-V target"); 4742 } 4743 } else 4744 Diags.Report(diag::err_drv_hlsl_unsupported_target) << T.str(); 4745 4746 if (Opts.LangStd < LangStandard::lang_hlsl202x) { 4747 const LangStandard &Requested = 4748 LangStandard::getLangStandardForKind(Opts.LangStd); 4749 const LangStandard &Recommended = 4750 LangStandard::getLangStandardForKind(LangStandard::lang_hlsl202x); 4751 Diags.Report(diag::warn_hlsl_langstd_minimal) 4752 << Requested.getName() << Recommended.getName(); 4753 } 4754 } 4755 4756 return Diags.getNumErrors() == NumErrorsBefore; 4757 } 4758 4759 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4760 switch (Action) { 4761 case frontend::ASTDeclList: 4762 case frontend::ASTDump: 4763 case frontend::ASTPrint: 4764 case frontend::ASTView: 4765 case frontend::EmitAssembly: 4766 case frontend::EmitBC: 4767 case frontend::EmitCIR: 4768 case frontend::EmitHTML: 4769 case frontend::EmitLLVM: 4770 case frontend::EmitLLVMOnly: 4771 case frontend::EmitCodeGenOnly: 4772 case frontend::EmitObj: 4773 case frontend::ExtractAPI: 4774 case frontend::FixIt: 4775 case frontend::GenerateModule: 4776 case frontend::GenerateModuleInterface: 4777 case frontend::GenerateReducedModuleInterface: 4778 case frontend::GenerateHeaderUnit: 4779 case frontend::GeneratePCH: 4780 case frontend::GenerateInterfaceStubs: 4781 case frontend::ParseSyntaxOnly: 4782 case frontend::ModuleFileInfo: 4783 case frontend::VerifyPCH: 4784 case frontend::PluginAction: 4785 case frontend::RewriteObjC: 4786 case frontend::RewriteTest: 4787 case frontend::RunAnalysis: 4788 case frontend::TemplightDump: 4789 return false; 4790 4791 case frontend::DumpCompilerOptions: 4792 case frontend::DumpRawTokens: 4793 case frontend::DumpTokens: 4794 case frontend::InitOnly: 4795 case frontend::PrintPreamble: 4796 case frontend::PrintPreprocessedInput: 4797 case frontend::RewriteMacros: 4798 case frontend::RunPreprocessorOnly: 4799 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4800 return true; 4801 } 4802 llvm_unreachable("invalid frontend action"); 4803 } 4804 4805 static bool isCodeGenAction(frontend::ActionKind Action) { 4806 switch (Action) { 4807 case frontend::EmitAssembly: 4808 case frontend::EmitBC: 4809 case frontend::EmitCIR: 4810 case frontend::EmitHTML: 4811 case frontend::EmitLLVM: 4812 case frontend::EmitLLVMOnly: 4813 case frontend::EmitCodeGenOnly: 4814 case frontend::EmitObj: 4815 case frontend::GenerateModule: 4816 case frontend::GenerateModuleInterface: 4817 case frontend::GenerateReducedModuleInterface: 4818 case frontend::GenerateHeaderUnit: 4819 case frontend::GeneratePCH: 4820 case frontend::GenerateInterfaceStubs: 4821 return true; 4822 case frontend::ASTDeclList: 4823 case frontend::ASTDump: 4824 case frontend::ASTPrint: 4825 case frontend::ASTView: 4826 case frontend::ExtractAPI: 4827 case frontend::FixIt: 4828 case frontend::ParseSyntaxOnly: 4829 case frontend::ModuleFileInfo: 4830 case frontend::VerifyPCH: 4831 case frontend::PluginAction: 4832 case frontend::RewriteObjC: 4833 case frontend::RewriteTest: 4834 case frontend::RunAnalysis: 4835 case frontend::TemplightDump: 4836 case frontend::DumpCompilerOptions: 4837 case frontend::DumpRawTokens: 4838 case frontend::DumpTokens: 4839 case frontend::InitOnly: 4840 case frontend::PrintPreamble: 4841 case frontend::PrintPreprocessedInput: 4842 case frontend::RewriteMacros: 4843 case frontend::RunPreprocessorOnly: 4844 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4845 return false; 4846 } 4847 llvm_unreachable("invalid frontend action"); 4848 } 4849 4850 static void GeneratePreprocessorArgs(const PreprocessorOptions &Opts, 4851 ArgumentConsumer Consumer, 4852 const LangOptions &LangOpts, 4853 const FrontendOptions &FrontendOpts, 4854 const CodeGenOptions &CodeGenOpts) { 4855 const PreprocessorOptions *PreprocessorOpts = &Opts; 4856 4857 #define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \ 4858 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4859 #include "clang/Driver/Options.inc" 4860 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4861 4862 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4863 GenerateArg(Consumer, OPT_pch_through_hdrstop_use); 4864 4865 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4866 GenerateArg(Consumer, OPT_error_on_deserialized_pch_decl, D); 4867 4868 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4869 GenerateArg(Consumer, OPT_preamble_bytes_EQ, 4870 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4871 (Opts.PrecompiledPreambleBytes.second ? "1" : "0")); 4872 4873 for (const auto &M : Opts.Macros) { 4874 // Don't generate __CET__ macro definitions. They are implied by the 4875 // -fcf-protection option that is generated elsewhere. 4876 if (M.first == "__CET__=1" && !M.second && 4877 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4878 continue; 4879 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4880 !CodeGenOpts.CFProtectionBranch) 4881 continue; 4882 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4883 CodeGenOpts.CFProtectionBranch) 4884 continue; 4885 4886 GenerateArg(Consumer, M.second ? OPT_U : OPT_D, M.first); 4887 } 4888 4889 for (const auto &I : Opts.Includes) { 4890 // Don't generate OpenCL includes. They are implied by other flags that are 4891 // generated elsewhere. 4892 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4893 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4894 I == "opencl-c.h")) 4895 continue; 4896 // Don't generate HLSL includes. They are implied by other flags that are 4897 // generated elsewhere. 4898 if (LangOpts.HLSL && I == "hlsl.h") 4899 continue; 4900 4901 GenerateArg(Consumer, OPT_include, I); 4902 } 4903 4904 for (const auto &CI : Opts.ChainedIncludes) 4905 GenerateArg(Consumer, OPT_chain_include, CI); 4906 4907 for (const auto &RF : Opts.RemappedFiles) 4908 GenerateArg(Consumer, OPT_remap_file, RF.first + ";" + RF.second); 4909 4910 if (Opts.SourceDateEpoch) 4911 GenerateArg(Consumer, OPT_source_date_epoch, Twine(*Opts.SourceDateEpoch)); 4912 4913 if (Opts.DefineTargetOSMacros) 4914 GenerateArg(Consumer, OPT_fdefine_target_os_macros); 4915 4916 for (const auto &EmbedEntry : Opts.EmbedEntries) 4917 GenerateArg(Consumer, OPT_embed_dir_EQ, EmbedEntry); 4918 4919 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4920 // generated elsewhere. 4921 } 4922 4923 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4924 DiagnosticsEngine &Diags, 4925 frontend::ActionKind Action, 4926 const FrontendOptions &FrontendOpts) { 4927 unsigned NumErrorsBefore = Diags.getNumErrors(); 4928 4929 PreprocessorOptions *PreprocessorOpts = &Opts; 4930 4931 #define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \ 4932 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4933 #include "clang/Driver/Options.inc" 4934 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4935 4936 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4937 Args.hasArg(OPT_pch_through_hdrstop_use); 4938 4939 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4940 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4941 4942 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4943 StringRef Value(A->getValue()); 4944 size_t Comma = Value.find(','); 4945 unsigned Bytes = 0; 4946 unsigned EndOfLine = 0; 4947 4948 if (Comma == StringRef::npos || 4949 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4950 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4951 Diags.Report(diag::err_drv_preamble_format); 4952 else { 4953 Opts.PrecompiledPreambleBytes.first = Bytes; 4954 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4955 } 4956 } 4957 4958 // Add macros from the command line. 4959 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4960 if (A->getOption().matches(OPT_D)) 4961 Opts.addMacroDef(A->getValue()); 4962 else 4963 Opts.addMacroUndef(A->getValue()); 4964 } 4965 4966 // Add the ordered list of -includes. 4967 for (const auto *A : Args.filtered(OPT_include)) 4968 Opts.Includes.emplace_back(A->getValue()); 4969 4970 for (const auto *A : Args.filtered(OPT_chain_include)) 4971 Opts.ChainedIncludes.emplace_back(A->getValue()); 4972 4973 for (const auto *A : Args.filtered(OPT_remap_file)) { 4974 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4975 4976 if (Split.second.empty()) { 4977 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4978 continue; 4979 } 4980 4981 Opts.addRemappedFile(Split.first, Split.second); 4982 } 4983 4984 if (const Arg *A = Args.getLastArg(OPT_source_date_epoch)) { 4985 StringRef Epoch = A->getValue(); 4986 // SOURCE_DATE_EPOCH, if specified, must be a non-negative decimal integer. 4987 // On time64 systems, pick 253402300799 (the UNIX timestamp of 4988 // 9999-12-31T23:59:59Z) as the upper bound. 4989 const uint64_t MaxTimestamp = 4990 std::min<uint64_t>(std::numeric_limits<time_t>::max(), 253402300799); 4991 uint64_t V; 4992 if (Epoch.getAsInteger(10, V) || V > MaxTimestamp) { 4993 Diags.Report(diag::err_fe_invalid_source_date_epoch) 4994 << Epoch << MaxTimestamp; 4995 } else { 4996 Opts.SourceDateEpoch = V; 4997 } 4998 } 4999 5000 for (const auto *A : Args.filtered(OPT_embed_dir_EQ)) { 5001 StringRef Val = A->getValue(); 5002 Opts.EmbedEntries.push_back(std::string(Val)); 5003 } 5004 5005 // Always avoid lexing editor placeholders when we're just running the 5006 // preprocessor as we never want to emit the 5007 // "editor placeholder in source file" error in PP only mode. 5008 if (isStrictlyPreprocessorAction(Action)) 5009 Opts.LexEditorPlaceholders = false; 5010 5011 Opts.DefineTargetOSMacros = 5012 Args.hasFlag(OPT_fdefine_target_os_macros, 5013 OPT_fno_define_target_os_macros, Opts.DefineTargetOSMacros); 5014 5015 return Diags.getNumErrors() == NumErrorsBefore; 5016 } 5017 5018 static void 5019 GeneratePreprocessorOutputArgs(const PreprocessorOutputOptions &Opts, 5020 ArgumentConsumer Consumer, 5021 frontend::ActionKind Action) { 5022 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 5023 5024 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 5025 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 5026 #include "clang/Driver/Options.inc" 5027 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 5028 5029 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 5030 if (Generate_dM) 5031 GenerateArg(Consumer, OPT_dM); 5032 if (!Generate_dM && Opts.ShowMacros) 5033 GenerateArg(Consumer, OPT_dD); 5034 if (Opts.DirectivesOnly) 5035 GenerateArg(Consumer, OPT_fdirectives_only); 5036 } 5037 5038 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 5039 ArgList &Args, DiagnosticsEngine &Diags, 5040 frontend::ActionKind Action) { 5041 unsigned NumErrorsBefore = Diags.getNumErrors(); 5042 5043 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 5044 5045 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 5046 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 5047 #include "clang/Driver/Options.inc" 5048 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 5049 5050 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 5051 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 5052 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 5053 5054 return Diags.getNumErrors() == NumErrorsBefore; 5055 } 5056 5057 static void GenerateTargetArgs(const TargetOptions &Opts, 5058 ArgumentConsumer Consumer) { 5059 const TargetOptions *TargetOpts = &Opts; 5060 #define TARGET_OPTION_WITH_MARSHALLING(...) \ 5061 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 5062 #include "clang/Driver/Options.inc" 5063 #undef TARGET_OPTION_WITH_MARSHALLING 5064 5065 if (!Opts.SDKVersion.empty()) 5066 GenerateArg(Consumer, OPT_target_sdk_version_EQ, 5067 Opts.SDKVersion.getAsString()); 5068 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 5069 GenerateArg(Consumer, OPT_darwin_target_variant_sdk_version_EQ, 5070 Opts.DarwinTargetVariantSDKVersion.getAsString()); 5071 } 5072 5073 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 5074 DiagnosticsEngine &Diags) { 5075 unsigned NumErrorsBefore = Diags.getNumErrors(); 5076 5077 TargetOptions *TargetOpts = &Opts; 5078 5079 #define TARGET_OPTION_WITH_MARSHALLING(...) \ 5080 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 5081 #include "clang/Driver/Options.inc" 5082 #undef TARGET_OPTION_WITH_MARSHALLING 5083 5084 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 5085 llvm::VersionTuple Version; 5086 if (Version.tryParse(A->getValue())) 5087 Diags.Report(diag::err_drv_invalid_value) 5088 << A->getAsString(Args) << A->getValue(); 5089 else 5090 Opts.SDKVersion = Version; 5091 } 5092 if (Arg *A = 5093 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 5094 llvm::VersionTuple Version; 5095 if (Version.tryParse(A->getValue())) 5096 Diags.Report(diag::err_drv_invalid_value) 5097 << A->getAsString(Args) << A->getValue(); 5098 else 5099 Opts.DarwinTargetVariantSDKVersion = Version; 5100 } 5101 5102 return Diags.getNumErrors() == NumErrorsBefore; 5103 } 5104 5105 bool CompilerInvocation::CreateFromArgsImpl( 5106 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 5107 DiagnosticsEngine &Diags, const char *Argv0) { 5108 unsigned NumErrorsBefore = Diags.getNumErrors(); 5109 5110 // Parse the arguments. 5111 const OptTable &Opts = getDriverOptTable(); 5112 llvm::opt::Visibility VisibilityMask(options::CC1Option); 5113 unsigned MissingArgIndex, MissingArgCount; 5114 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 5115 MissingArgCount, VisibilityMask); 5116 LangOptions &LangOpts = Res.getLangOpts(); 5117 5118 // Check for missing argument error. 5119 if (MissingArgCount) 5120 Diags.Report(diag::err_drv_missing_argument) 5121 << Args.getArgString(MissingArgIndex) << MissingArgCount; 5122 5123 // Issue errors on unknown arguments. 5124 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 5125 auto ArgString = A->getAsString(Args); 5126 std::string Nearest; 5127 if (Opts.findNearest(ArgString, Nearest, VisibilityMask) > 1) 5128 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 5129 else 5130 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 5131 << ArgString << Nearest; 5132 } 5133 5134 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 5135 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 5136 ParseAnalyzerArgs(Res.getAnalyzerOpts(), Args, Diags); 5137 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 5138 /*DefaultDiagColor=*/false); 5139 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 5140 // FIXME: We shouldn't have to pass the DashX option around here 5141 InputKind DashX = Res.getFrontendOpts().DashX; 5142 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 5143 llvm::Triple T(Res.getTargetOpts().Triple); 5144 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 5145 Res.getFileSystemOpts().WorkingDir); 5146 if (Res.getFrontendOpts().GenReducedBMI || 5147 Res.getFrontendOpts().ProgramAction == 5148 frontend::GenerateReducedModuleInterface || 5149 Res.getFrontendOpts().ProgramAction == 5150 frontend::GenerateModuleInterface) { 5151 Res.getHeaderSearchOpts().ModulesSkipDiagnosticOptions = true; 5152 Res.getHeaderSearchOpts().ModulesSkipHeaderSearchPaths = true; 5153 } 5154 ParseAPINotesArgs(Res.getAPINotesOpts(), Args, Diags); 5155 5156 ParsePointerAuthArgs(LangOpts, Args, Diags); 5157 5158 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 5159 Diags); 5160 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 5161 LangOpts.ObjCExceptions = 1; 5162 5163 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 5164 if (Warning == "misexpect" && 5165 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 5166 Res.getCodeGenOpts().MisExpect = true; 5167 } 5168 } 5169 5170 if (LangOpts.CUDA) { 5171 // During CUDA device-side compilation, the aux triple is the 5172 // triple used for host compilation. 5173 if (LangOpts.CUDAIsDevice) 5174 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 5175 } 5176 5177 if (LangOpts.OpenACC && !Res.getFrontendOpts().UseClangIRPipeline && 5178 isCodeGenAction(Res.getFrontendOpts().ProgramAction)) 5179 Diags.Report(diag::warn_drv_openacc_without_cir); 5180 5181 // Set the triple of the host for OpenMP device compile. 5182 if (LangOpts.OpenMPIsTargetDevice) 5183 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 5184 5185 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 5186 Res.getFrontendOpts().OutputFile, LangOpts); 5187 5188 // FIXME: Override value name discarding when asan or msan is used because the 5189 // backend passes depend on the name of the alloca in order to print out 5190 // names. 5191 Res.getCodeGenOpts().DiscardValueNames &= 5192 !LangOpts.Sanitize.has(SanitizerKind::Address) && 5193 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 5194 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 5195 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 5196 5197 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 5198 Res.getFrontendOpts().ProgramAction, 5199 Res.getFrontendOpts()); 5200 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 5201 Res.getFrontendOpts().ProgramAction); 5202 5203 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 5204 Res.getFrontendOpts().ProgramAction, 5205 Res.getPreprocessorOutputOpts().ShowLineMarkers); 5206 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 5207 Res.getDependencyOutputOpts().Targets.empty()) 5208 Diags.Report(diag::err_fe_dependency_file_requires_MT); 5209 5210 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 5211 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 5212 !Res.getLangOpts().Sanitize.empty()) { 5213 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 5214 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 5215 } 5216 5217 // Store the command-line for using in the CodeView backend. 5218 if (Res.getCodeGenOpts().CodeViewCommandLine) { 5219 Res.getCodeGenOpts().Argv0 = Argv0; 5220 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 5221 } 5222 5223 // Set PGOOptions. Need to create a temporary VFS to read the profile 5224 // to determine the PGO type. 5225 if (!Res.getCodeGenOpts().ProfileInstrumentUsePath.empty()) { 5226 auto FS = 5227 createVFSFromOverlayFiles(Res.getHeaderSearchOpts().VFSOverlayFiles, 5228 Diags, llvm::vfs::getRealFileSystem()); 5229 setPGOUseInstrumentor(Res.getCodeGenOpts(), 5230 Res.getCodeGenOpts().ProfileInstrumentUsePath, *FS, 5231 Diags); 5232 } 5233 5234 FixupInvocation(Res, Diags, Args, DashX); 5235 5236 return Diags.getNumErrors() == NumErrorsBefore; 5237 } 5238 5239 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 5240 ArrayRef<const char *> CommandLineArgs, 5241 DiagnosticsEngine &Diags, 5242 const char *Argv0) { 5243 CompilerInvocation DummyInvocation; 5244 5245 return RoundTrip( 5246 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 5247 DiagnosticsEngine &Diags, const char *Argv0) { 5248 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 5249 }, 5250 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 5251 StringAllocator SA) { 5252 Args.push_back("-cc1"); 5253 Invocation.generateCC1CommandLine(Args, SA); 5254 }, 5255 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 5256 } 5257 5258 std::string CompilerInvocation::getModuleHash() const { 5259 // FIXME: Consider using SHA1 instead of MD5. 5260 llvm::HashBuilder<llvm::MD5, llvm::endianness::native> HBuilder; 5261 5262 // Note: For QoI reasons, the things we use as a hash here should all be 5263 // dumped via the -module-info flag. 5264 5265 // Start the signature with the compiler version. 5266 HBuilder.add(getClangFullRepositoryVersion()); 5267 5268 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 5269 // and getClangFullRepositoryVersion() doesn't include git revision. 5270 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 5271 5272 // Extend the signature with the language options 5273 // FIXME: Replace with C++20 `using enum LangOptions::CompatibilityKind`. 5274 using CK = LangOptions::CompatibilityKind; 5275 #define LANGOPT(Name, Bits, Default, Compatibility, Description) \ 5276 if constexpr (CK::Compatibility != CK::Benign) \ 5277 HBuilder.add(LangOpts->Name); 5278 #define ENUM_LANGOPT(Name, Type, Bits, Default, Compatibility, Description) \ 5279 if constexpr (CK::Compatibility != CK::Benign) \ 5280 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 5281 #include "clang/Basic/LangOptions.def" 5282 5283 HBuilder.addRange(getLangOpts().ModuleFeatures); 5284 5285 HBuilder.add(getLangOpts().ObjCRuntime); 5286 HBuilder.addRange(getLangOpts().CommentOpts.BlockCommandNames); 5287 5288 // Extend the signature with the target options. 5289 HBuilder.add(getTargetOpts().Triple, getTargetOpts().CPU, 5290 getTargetOpts().TuneCPU, getTargetOpts().ABI); 5291 HBuilder.addRange(getTargetOpts().FeaturesAsWritten); 5292 5293 // Extend the signature with preprocessor options. 5294 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 5295 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 5296 5297 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 5298 for (const auto &Macro : getPreprocessorOpts().Macros) { 5299 // If we're supposed to ignore this macro for the purposes of modules, 5300 // don't put it into the hash. 5301 if (!hsOpts.ModulesIgnoreMacros.empty()) { 5302 // Check whether we're ignoring this macro. 5303 StringRef MacroDef = Macro.first; 5304 if (hsOpts.ModulesIgnoreMacros.count( 5305 llvm::CachedHashString(MacroDef.split('=').first))) 5306 continue; 5307 } 5308 5309 HBuilder.add(Macro); 5310 } 5311 5312 // Extend the signature with the sysroot and other header search options. 5313 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 5314 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 5315 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 5316 hsOpts.ModulesValidateDiagnosticOptions); 5317 HBuilder.add(hsOpts.ResourceDir); 5318 5319 if (hsOpts.ModulesStrictContextHash) { 5320 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 5321 HBuilder.addRange(hsOpts.UserEntries); 5322 HBuilder.addRange(hsOpts.VFSOverlayFiles); 5323 5324 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 5325 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 5326 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 5327 HBuilder.add(diagOpts.get##Name()); 5328 #include "clang/Basic/DiagnosticOptions.def" 5329 #undef DIAGOPT 5330 #undef ENUM_DIAGOPT 5331 } 5332 5333 // Extend the signature with the user build path. 5334 HBuilder.add(hsOpts.ModuleUserBuildPath); 5335 5336 // Extend the signature with the module file extensions. 5337 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 5338 ext->hashExtension(HBuilder); 5339 5340 // Extend the signature with the Swift version for API notes. 5341 const APINotesOptions &APINotesOpts = getAPINotesOpts(); 5342 if (!APINotesOpts.SwiftVersion.empty()) { 5343 HBuilder.add(APINotesOpts.SwiftVersion.getMajor()); 5344 if (auto Minor = APINotesOpts.SwiftVersion.getMinor()) 5345 HBuilder.add(*Minor); 5346 if (auto Subminor = APINotesOpts.SwiftVersion.getSubminor()) 5347 HBuilder.add(*Subminor); 5348 if (auto Build = APINotesOpts.SwiftVersion.getBuild()) 5349 HBuilder.add(*Build); 5350 } 5351 5352 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 5353 // affects the debug info in the PCM. 5354 if (getCodeGenOpts().DebugTypeExtRefs) 5355 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 5356 5357 // Extend the signature with the affecting debug options. 5358 if (getHeaderSearchOpts().ModuleFormat == "obj") { 5359 // FIXME: Replace with C++20 `using enum CodeGenOptions::CompatibilityKind`. 5360 using CK = CodeGenOptions::CompatibilityKind; 5361 #define DEBUGOPT(Name, Bits, Default, Compatibility) \ 5362 if constexpr (CK::Compatibility == CK::Affecting) \ 5363 HBuilder.add(CodeGenOpts->Name); 5364 #define VALUE_DEBUGOPT(Name, Bits, Default, Compatibility) \ 5365 if constexpr (CK::Compatibility == CK::Affecting) \ 5366 HBuilder.add(CodeGenOpts->Name); 5367 #define ENUM_DEBUGOPT(Name, Type, Bits, Default, Compatibility) \ 5368 if constexpr (CK::Compatibility == CK::Affecting) \ 5369 HBuilder.add(static_cast<unsigned>(CodeGenOpts->get##Name())); 5370 #include "clang/Basic/DebugOptions.def" 5371 } 5372 5373 // Extend the signature with the enabled sanitizers, if at least one is 5374 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 5375 SanitizerSet SanHash = getLangOpts().Sanitize; 5376 SanHash.clear(getPPTransparentSanitizers()); 5377 if (!SanHash.empty()) 5378 HBuilder.add(SanHash.Mask); 5379 5380 llvm::MD5::MD5Result Result; 5381 HBuilder.getHasher().final(Result); 5382 uint64_t Hash = Result.high() ^ Result.low(); 5383 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 5384 } 5385 5386 void CompilerInvocationBase::generateCC1CommandLine( 5387 ArgumentConsumer Consumer) const { 5388 llvm::Triple T(getTargetOpts().Triple); 5389 5390 GenerateFileSystemArgs(getFileSystemOpts(), Consumer); 5391 GenerateMigratorArgs(getMigratorOpts(), Consumer); 5392 GenerateAnalyzerArgs(getAnalyzerOpts(), Consumer); 5393 GenerateDiagnosticArgs(getDiagnosticOpts(), Consumer, 5394 /*DefaultDiagColor=*/false); 5395 GenerateFrontendArgs(getFrontendOpts(), Consumer, getLangOpts().IsHeaderFile); 5396 GenerateTargetArgs(getTargetOpts(), Consumer); 5397 GenerateHeaderSearchArgs(getHeaderSearchOpts(), Consumer); 5398 GenerateAPINotesArgs(getAPINotesOpts(), Consumer); 5399 GeneratePointerAuthArgs(getLangOpts(), Consumer); 5400 GenerateLangArgs(getLangOpts(), Consumer, T, getFrontendOpts().DashX); 5401 GenerateCodeGenArgs(getCodeGenOpts(), Consumer, T, 5402 getFrontendOpts().OutputFile, &getLangOpts()); 5403 GeneratePreprocessorArgs(getPreprocessorOpts(), Consumer, getLangOpts(), 5404 getFrontendOpts(), getCodeGenOpts()); 5405 GeneratePreprocessorOutputArgs(getPreprocessorOutputOpts(), Consumer, 5406 getFrontendOpts().ProgramAction); 5407 GenerateDependencyOutputArgs(getDependencyOutputOpts(), Consumer); 5408 } 5409 5410 std::vector<std::string> CompilerInvocationBase::getCC1CommandLine() const { 5411 std::vector<std::string> Args{"-cc1"}; 5412 generateCC1CommandLine( 5413 [&Args](const Twine &Arg) { Args.push_back(Arg.str()); }); 5414 return Args; 5415 } 5416 5417 void CompilerInvocation::resetNonModularOptions() { 5418 getLangOpts().resetNonModularOptions(); 5419 getPreprocessorOpts().resetNonModularOptions(); 5420 getCodeGenOpts().resetNonModularOptions(getHeaderSearchOpts().ModuleFormat); 5421 } 5422 5423 void CompilerInvocation::clearImplicitModuleBuildOptions() { 5424 getLangOpts().ImplicitModules = false; 5425 getHeaderSearchOpts().ImplicitModuleMaps = false; 5426 getHeaderSearchOpts().ModuleCachePath.clear(); 5427 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false; 5428 getHeaderSearchOpts().BuildSessionTimestamp = 0; 5429 // The specific values we canonicalize to for pruning don't affect behaviour, 5430 /// so use the default values so they may be dropped from the command-line. 5431 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60; 5432 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60; 5433 } 5434 5435 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 5436 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 5437 DiagnosticsEngine &Diags) { 5438 return createVFSFromCompilerInvocation(CI, Diags, 5439 llvm::vfs::getRealFileSystem()); 5440 } 5441 5442 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 5443 clang::createVFSFromCompilerInvocation( 5444 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 5445 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 5446 return createVFSFromOverlayFiles(CI.getHeaderSearchOpts().VFSOverlayFiles, 5447 Diags, std::move(BaseFS)); 5448 } 5449 5450 IntrusiveRefCntPtr<llvm::vfs::FileSystem> clang::createVFSFromOverlayFiles( 5451 ArrayRef<std::string> VFSOverlayFiles, DiagnosticsEngine &Diags, 5452 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 5453 if (VFSOverlayFiles.empty()) 5454 return BaseFS; 5455 5456 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 5457 // earlier vfs files are on the bottom 5458 for (const auto &File : VFSOverlayFiles) { 5459 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 5460 Result->getBufferForFile(File); 5461 if (!Buffer) { 5462 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 5463 continue; 5464 } 5465 5466 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 5467 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 5468 /*DiagContext*/ nullptr, Result); 5469 if (!FS) { 5470 Diags.Report(diag::err_invalid_vfs_overlay) << File; 5471 continue; 5472 } 5473 5474 Result = FS; 5475 } 5476 return Result; 5477 } 5478