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.ObjCMethodListFunctionPointers = 1546 PointerAuthSchema(Key::ASIA, true, Discrimination::None); 1547 Opts.ObjCMethodListPointer = 1548 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant, 1549 MethodListPointerConstantDiscriminator); 1550 if (LangOpts.PointerAuthObjcIsa) { 1551 Opts.ObjCIsaPointers = 1552 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant, 1553 IsaPointerConstantDiscriminator); 1554 Opts.ObjCSuperPointers = 1555 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant, 1556 SuperPointerConstantDiscriminator); 1557 } 1558 1559 if (LangOpts.PointerAuthObjcClassROPointers) 1560 Opts.ObjCClassROPointers = 1561 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant, 1562 ClassROConstantDiscriminator); 1563 } 1564 Opts.ReturnAddresses = LangOpts.PointerAuthReturns; 1565 Opts.AuthTraps = LangOpts.PointerAuthAuthTraps; 1566 Opts.IndirectGotos = LangOpts.PointerAuthIndirectGotos; 1567 Opts.AArch64JumpTableHardening = LangOpts.AArch64JumpTableHardening; 1568 } 1569 1570 static void parsePointerAuthOptions(PointerAuthOptions &Opts, 1571 const LangOptions &LangOpts, 1572 const llvm::Triple &Triple, 1573 DiagnosticsEngine &Diags) { 1574 if (!LangOpts.PointerAuthCalls && !LangOpts.PointerAuthReturns && 1575 !LangOpts.PointerAuthAuthTraps && !LangOpts.PointerAuthIndirectGotos && 1576 !LangOpts.AArch64JumpTableHardening) 1577 return; 1578 1579 CompilerInvocation::setDefaultPointerAuthOptions(Opts, LangOpts, Triple); 1580 } 1581 1582 void CompilerInvocationBase::GenerateCodeGenArgs(const CodeGenOptions &Opts, 1583 ArgumentConsumer Consumer, 1584 const llvm::Triple &T, 1585 const std::string &OutputFile, 1586 const LangOptions *LangOpts) { 1587 const CodeGenOptions &CodeGenOpts = Opts; 1588 1589 if (Opts.OptimizationLevel == 0) 1590 GenerateArg(Consumer, OPT_O0); 1591 else 1592 GenerateArg(Consumer, OPT_O, Twine(Opts.OptimizationLevel)); 1593 1594 #define CODEGEN_OPTION_WITH_MARSHALLING(...) \ 1595 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 1596 #include "clang/Driver/Options.inc" 1597 #undef CODEGEN_OPTION_WITH_MARSHALLING 1598 1599 if (Opts.OptimizationLevel > 0) { 1600 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1601 GenerateArg(Consumer, OPT_finline_functions); 1602 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1603 GenerateArg(Consumer, OPT_finline_hint_functions); 1604 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1605 GenerateArg(Consumer, OPT_fno_inline); 1606 } 1607 1608 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1609 GenerateArg(Consumer, OPT_fdirect_access_external_data); 1610 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1611 GenerateArg(Consumer, OPT_fno_direct_access_external_data); 1612 1613 std::optional<StringRef> DebugInfoVal; 1614 switch (Opts.DebugInfo) { 1615 case llvm::codegenoptions::DebugLineTablesOnly: 1616 DebugInfoVal = "line-tables-only"; 1617 break; 1618 case llvm::codegenoptions::DebugDirectivesOnly: 1619 DebugInfoVal = "line-directives-only"; 1620 break; 1621 case llvm::codegenoptions::DebugInfoConstructor: 1622 DebugInfoVal = "constructor"; 1623 break; 1624 case llvm::codegenoptions::LimitedDebugInfo: 1625 DebugInfoVal = "limited"; 1626 break; 1627 case llvm::codegenoptions::FullDebugInfo: 1628 DebugInfoVal = "standalone"; 1629 break; 1630 case llvm::codegenoptions::UnusedTypeInfo: 1631 DebugInfoVal = "unused-types"; 1632 break; 1633 case llvm::codegenoptions::NoDebugInfo: // default value 1634 DebugInfoVal = std::nullopt; 1635 break; 1636 case llvm::codegenoptions::LocTrackingOnly: // implied value 1637 DebugInfoVal = std::nullopt; 1638 break; 1639 } 1640 if (DebugInfoVal) 1641 GenerateArg(Consumer, OPT_debug_info_kind_EQ, *DebugInfoVal); 1642 1643 for (const auto &Prefix : Opts.DebugPrefixMap) 1644 GenerateArg(Consumer, OPT_fdebug_prefix_map_EQ, 1645 Prefix.first + "=" + Prefix.second); 1646 1647 for (const auto &Prefix : Opts.CoveragePrefixMap) 1648 GenerateArg(Consumer, OPT_fcoverage_prefix_map_EQ, 1649 Prefix.first + "=" + Prefix.second); 1650 1651 if (Opts.NewStructPathTBAA) 1652 GenerateArg(Consumer, OPT_new_struct_path_tbaa); 1653 1654 if (Opts.OptimizeSize == 1) 1655 GenerateArg(Consumer, OPT_O, "s"); 1656 else if (Opts.OptimizeSize == 2) 1657 GenerateArg(Consumer, OPT_O, "z"); 1658 1659 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1660 // -ffreestanding. We'll consider that when generating them. 1661 1662 // NoBuiltinFuncs are generated by LangOptions. 1663 1664 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1665 GenerateArg(Consumer, OPT_funroll_loops); 1666 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1667 GenerateArg(Consumer, OPT_fno_unroll_loops); 1668 1669 if (Opts.InterchangeLoops) 1670 GenerateArg(Consumer, OPT_floop_interchange); 1671 else 1672 GenerateArg(Consumer, OPT_fno_loop_interchange); 1673 1674 if (!Opts.BinutilsVersion.empty()) 1675 GenerateArg(Consumer, OPT_fbinutils_version_EQ, Opts.BinutilsVersion); 1676 1677 if (Opts.DebugNameTable == 1678 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1679 GenerateArg(Consumer, OPT_ggnu_pubnames); 1680 else if (Opts.DebugNameTable == 1681 static_cast<unsigned>( 1682 llvm::DICompileUnit::DebugNameTableKind::Default)) 1683 GenerateArg(Consumer, OPT_gpubnames); 1684 1685 if (Opts.DebugTemplateAlias) 1686 GenerateArg(Consumer, OPT_gtemplate_alias); 1687 1688 auto TNK = Opts.getDebugSimpleTemplateNames(); 1689 if (TNK != llvm::codegenoptions::DebugTemplateNamesKind::Full) { 1690 if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Simple) 1691 GenerateArg(Consumer, OPT_gsimple_template_names_EQ, "simple"); 1692 else if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Mangled) 1693 GenerateArg(Consumer, OPT_gsimple_template_names_EQ, "mangled"); 1694 } 1695 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1696 // it or PGOUseInstrumentor. 1697 1698 if (Opts.TimePasses) { 1699 if (Opts.TimePassesPerRun) 1700 GenerateArg(Consumer, OPT_ftime_report_EQ, "per-pass-run"); 1701 else 1702 GenerateArg(Consumer, OPT_ftime_report); 1703 1704 if (Opts.TimePassesJson) 1705 GenerateArg(Consumer, OPT_ftime_report_json); 1706 } 1707 1708 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1709 GenerateArg(Consumer, OPT_flto_EQ, "full"); 1710 1711 if (Opts.PrepareForThinLTO) 1712 GenerateArg(Consumer, OPT_flto_EQ, "thin"); 1713 1714 if (!Opts.ThinLTOIndexFile.empty()) 1715 GenerateArg(Consumer, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile); 1716 1717 if (Opts.SaveTempsFilePrefix == OutputFile) 1718 GenerateArg(Consumer, OPT_save_temps_EQ, "obj"); 1719 1720 StringRef MemProfileBasename("memprof.profraw"); 1721 if (!Opts.MemoryProfileOutput.empty()) { 1722 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1723 GenerateArg(Consumer, OPT_fmemory_profile); 1724 } else { 1725 size_t ArgLength = 1726 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1727 GenerateArg(Consumer, OPT_fmemory_profile_EQ, 1728 Opts.MemoryProfileOutput.substr(0, ArgLength)); 1729 } 1730 } 1731 1732 if (memcmp(Opts.CoverageVersion, "0000", 4)) 1733 GenerateArg(Consumer, OPT_coverage_version_EQ, 1734 StringRef(Opts.CoverageVersion, 4)); 1735 1736 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1737 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1738 // won't be generated.) 1739 1740 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1741 std::string InstrBundle = 1742 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1743 if (!InstrBundle.empty()) 1744 GenerateArg(Consumer, OPT_fxray_instrumentation_bundle, InstrBundle); 1745 } 1746 1747 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1748 GenerateArg(Consumer, OPT_fcf_protection_EQ, "full"); 1749 else if (Opts.CFProtectionReturn) 1750 GenerateArg(Consumer, OPT_fcf_protection_EQ, "return"); 1751 else if (Opts.CFProtectionBranch) 1752 GenerateArg(Consumer, OPT_fcf_protection_EQ, "branch"); 1753 1754 if (Opts.CFProtectionBranch) { 1755 switch (Opts.getCFBranchLabelScheme()) { 1756 case CFBranchLabelSchemeKind::Default: 1757 break; 1758 #define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \ 1759 case CFBranchLabelSchemeKind::Kind: \ 1760 GenerateArg(Consumer, OPT_mcf_branch_label_scheme_EQ, #FlagVal); \ 1761 break; 1762 #include "clang/Basic/CFProtectionOptions.def" 1763 } 1764 } 1765 1766 if (Opts.FunctionReturnThunks) 1767 GenerateArg(Consumer, OPT_mfunction_return_EQ, "thunk-extern"); 1768 1769 for (const auto &F : Opts.LinkBitcodeFiles) { 1770 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1771 F.PropagateAttrs && F.Internalize; 1772 GenerateArg(Consumer, 1773 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1774 F.Filename); 1775 } 1776 1777 if (Opts.EmulatedTLS) 1778 GenerateArg(Consumer, OPT_femulated_tls); 1779 1780 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1781 GenerateArg(Consumer, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str()); 1782 1783 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1784 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1785 GenerateArg(Consumer, OPT_fdenormal_fp_math_f32_EQ, 1786 Opts.FP32DenormalMode.str()); 1787 1788 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1789 OptSpecifier Opt = 1790 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1791 GenerateArg(Consumer, Opt); 1792 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1793 OptSpecifier Opt = 1794 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1795 GenerateArg(Consumer, Opt); 1796 } 1797 1798 if (Opts.EnableAIXExtendedAltivecABI) 1799 GenerateArg(Consumer, OPT_mabi_EQ_vec_extabi); 1800 1801 if (Opts.XCOFFReadOnlyPointers) 1802 GenerateArg(Consumer, OPT_mxcoff_roptr); 1803 1804 if (!Opts.OptRecordPasses.empty()) 1805 GenerateArg(Consumer, OPT_opt_record_passes, Opts.OptRecordPasses); 1806 1807 if (!Opts.OptRecordFormat.empty()) 1808 GenerateArg(Consumer, OPT_opt_record_format, Opts.OptRecordFormat); 1809 1810 GenerateOptimizationRemark(Consumer, OPT_Rpass_EQ, "pass", 1811 Opts.OptimizationRemark); 1812 1813 GenerateOptimizationRemark(Consumer, OPT_Rpass_missed_EQ, "pass-missed", 1814 Opts.OptimizationRemarkMissed); 1815 1816 GenerateOptimizationRemark(Consumer, OPT_Rpass_analysis_EQ, "pass-analysis", 1817 Opts.OptimizationRemarkAnalysis); 1818 1819 GenerateArg(Consumer, OPT_fdiagnostics_hotness_threshold_EQ, 1820 Opts.DiagnosticsHotnessThreshold 1821 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1822 : "auto"); 1823 1824 GenerateArg(Consumer, OPT_fdiagnostics_misexpect_tolerance_EQ, 1825 Twine(*Opts.DiagnosticsMisExpectTolerance)); 1826 1827 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1828 GenerateArg(Consumer, OPT_fsanitize_recover_EQ, Sanitizer); 1829 1830 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1831 GenerateArg(Consumer, OPT_fsanitize_trap_EQ, Sanitizer); 1832 1833 for (StringRef Sanitizer : 1834 serializeSanitizerKinds(Opts.SanitizeMergeHandlers)) 1835 GenerateArg(Consumer, OPT_fsanitize_merge_handlers_EQ, Sanitizer); 1836 1837 SmallVector<std::string, 4> Values; 1838 serializeSanitizerMaskCutoffs(Opts.SanitizeSkipHotCutoffs, Values); 1839 for (std::string Sanitizer : Values) 1840 GenerateArg(Consumer, OPT_fsanitize_skip_hot_cutoff_EQ, Sanitizer); 1841 1842 if (Opts.AllowRuntimeCheckSkipHotCutoff) { 1843 GenerateArg(Consumer, OPT_fallow_runtime_check_skip_hot_cutoff_EQ, 1844 std::to_string(*Opts.AllowRuntimeCheckSkipHotCutoff)); 1845 } 1846 1847 for (StringRef Sanitizer : 1848 serializeSanitizerKinds(Opts.SanitizeAnnotateDebugInfo)) 1849 GenerateArg(Consumer, OPT_fsanitize_annotate_debug_info_EQ, Sanitizer); 1850 1851 if (!Opts.EmitVersionIdentMetadata) 1852 GenerateArg(Consumer, OPT_Qn); 1853 1854 switch (Opts.FiniteLoops) { 1855 case CodeGenOptions::FiniteLoopsKind::Language: 1856 break; 1857 case CodeGenOptions::FiniteLoopsKind::Always: 1858 GenerateArg(Consumer, OPT_ffinite_loops); 1859 break; 1860 case CodeGenOptions::FiniteLoopsKind::Never: 1861 GenerateArg(Consumer, OPT_fno_finite_loops); 1862 break; 1863 } 1864 1865 if (Opts.StaticClosure) 1866 GenerateArg(Consumer, OPT_static_libclosure); 1867 } 1868 1869 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1870 InputKind IK, 1871 DiagnosticsEngine &Diags, 1872 const llvm::Triple &T, 1873 const std::string &OutputFile, 1874 const LangOptions &LangOptsRef) { 1875 unsigned NumErrorsBefore = Diags.getNumErrors(); 1876 1877 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1878 // TODO: This could be done in Driver 1879 unsigned MaxOptLevel = 3; 1880 if (OptimizationLevel > MaxOptLevel) { 1881 // If the optimization level is not supported, fall back on the default 1882 // optimization 1883 Diags.Report(diag::warn_drv_optimization_value) 1884 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1885 OptimizationLevel = MaxOptLevel; 1886 } 1887 Opts.OptimizationLevel = OptimizationLevel; 1888 1889 // The key paths of codegen options defined in Options.td start with 1890 // "CodeGenOpts.". Let's provide the expected variable name and type. 1891 CodeGenOptions &CodeGenOpts = Opts; 1892 // Some codegen options depend on language options. Let's provide the expected 1893 // variable name and type. 1894 const LangOptions *LangOpts = &LangOptsRef; 1895 1896 #define CODEGEN_OPTION_WITH_MARSHALLING(...) \ 1897 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 1898 #include "clang/Driver/Options.inc" 1899 #undef CODEGEN_OPTION_WITH_MARSHALLING 1900 1901 // At O0 we want to fully disable inlining outside of cases marked with 1902 // 'alwaysinline' that are required for correctness. 1903 if (Opts.OptimizationLevel == 0) { 1904 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1905 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1906 options::OPT_finline_hint_functions, 1907 options::OPT_fno_inline_functions, 1908 options::OPT_fno_inline)) { 1909 // Explicit inlining flags can disable some or all inlining even at 1910 // optimization levels above zero. 1911 if (A->getOption().matches(options::OPT_finline_functions)) 1912 Opts.setInlining(CodeGenOptions::NormalInlining); 1913 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1914 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1915 else 1916 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1917 } else { 1918 Opts.setInlining(CodeGenOptions::NormalInlining); 1919 } 1920 1921 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1922 // -fdirect-access-external-data. 1923 Opts.DirectAccessExternalData = 1924 Args.hasArg(OPT_fdirect_access_external_data) || 1925 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1926 LangOpts->PICLevel == 0); 1927 1928 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1929 unsigned Val = 1930 llvm::StringSwitch<unsigned>(A->getValue()) 1931 .Case("line-tables-only", llvm::codegenoptions::DebugLineTablesOnly) 1932 .Case("line-directives-only", 1933 llvm::codegenoptions::DebugDirectivesOnly) 1934 .Case("constructor", llvm::codegenoptions::DebugInfoConstructor) 1935 .Case("limited", llvm::codegenoptions::LimitedDebugInfo) 1936 .Case("standalone", llvm::codegenoptions::FullDebugInfo) 1937 .Case("unused-types", llvm::codegenoptions::UnusedTypeInfo) 1938 .Default(~0U); 1939 if (Val == ~0U) 1940 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1941 << A->getValue(); 1942 else 1943 Opts.setDebugInfo(static_cast<llvm::codegenoptions::DebugInfoKind>(Val)); 1944 } 1945 1946 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1947 // constructor homing, and vice versa for -fno-use-ctor-homing. 1948 if (const Arg *A = 1949 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1950 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1951 Opts.getDebugInfo() == llvm::codegenoptions::LimitedDebugInfo) 1952 Opts.setDebugInfo(llvm::codegenoptions::DebugInfoConstructor); 1953 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1954 Opts.getDebugInfo() == llvm::codegenoptions::DebugInfoConstructor) 1955 Opts.setDebugInfo(llvm::codegenoptions::LimitedDebugInfo); 1956 } 1957 1958 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1959 auto Split = StringRef(Arg).split('='); 1960 Opts.DebugPrefixMap.emplace_back(Split.first, Split.second); 1961 } 1962 1963 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1964 auto Split = StringRef(Arg).split('='); 1965 Opts.CoveragePrefixMap.emplace_back(Split.first, Split.second); 1966 } 1967 1968 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1969 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1970 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1971 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1972 1973 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1974 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1975 Opts.EmitCallSiteInfo = true; 1976 1977 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1978 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1979 << Opts.DIBugsReportFilePath; 1980 Opts.DIBugsReportFilePath = ""; 1981 } 1982 1983 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1984 Args.hasArg(OPT_new_struct_path_tbaa); 1985 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1986 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1987 if (Opts.SimplifyLibCalls) 1988 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1989 Opts.UnrollLoops = 1990 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1991 (Opts.OptimizationLevel > 1)); 1992 Opts.InterchangeLoops = 1993 Args.hasFlag(OPT_floop_interchange, OPT_fno_loop_interchange, false); 1994 Opts.BinutilsVersion = 1995 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1996 1997 Opts.DebugTemplateAlias = Args.hasArg(OPT_gtemplate_alias); 1998 1999 Opts.DebugNameTable = static_cast<unsigned>( 2000 Args.hasArg(OPT_ggnu_pubnames) 2001 ? llvm::DICompileUnit::DebugNameTableKind::GNU 2002 : Args.hasArg(OPT_gpubnames) 2003 ? llvm::DICompileUnit::DebugNameTableKind::Default 2004 : llvm::DICompileUnit::DebugNameTableKind::None); 2005 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 2006 StringRef Value = A->getValue(); 2007 if (Value != "simple" && Value != "mangled") 2008 Diags.Report(diag::err_drv_unsupported_option_argument) 2009 << A->getSpelling() << A->getValue(); 2010 Opts.setDebugSimpleTemplateNames( 2011 StringRef(A->getValue()) == "simple" 2012 ? llvm::codegenoptions::DebugTemplateNamesKind::Simple 2013 : llvm::codegenoptions::DebugTemplateNamesKind::Mangled); 2014 } 2015 2016 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ, 2017 OPT_ftime_report_json)) { 2018 Opts.TimePasses = true; 2019 2020 // -ftime-report= is only for new pass manager. 2021 if (const Arg *EQ = Args.getLastArg(OPT_ftime_report_EQ)) { 2022 StringRef Val = EQ->getValue(); 2023 if (Val == "per-pass") 2024 Opts.TimePassesPerRun = false; 2025 else if (Val == "per-pass-run") 2026 Opts.TimePassesPerRun = true; 2027 else 2028 Diags.Report(diag::err_drv_invalid_value) 2029 << A->getAsString(Args) << A->getValue(); 2030 } 2031 2032 if (Args.getLastArg(OPT_ftime_report_json)) 2033 Opts.TimePassesJson = true; 2034 } 2035 2036 Opts.PrepareForLTO = false; 2037 Opts.PrepareForThinLTO = false; 2038 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 2039 Opts.PrepareForLTO = true; 2040 StringRef S = A->getValue(); 2041 if (S == "thin") 2042 Opts.PrepareForThinLTO = true; 2043 else if (S != "full") 2044 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 2045 if (Args.hasArg(OPT_funified_lto)) 2046 Opts.PrepareForThinLTO = true; 2047 } 2048 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 2049 if (IK.getLanguage() != Language::LLVM_IR) 2050 Diags.Report(diag::err_drv_argument_only_allowed_with) 2051 << A->getAsString(Args) << "-x ir"; 2052 Opts.ThinLTOIndexFile = 2053 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 2054 } 2055 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 2056 Opts.SaveTempsFilePrefix = 2057 llvm::StringSwitch<std::string>(A->getValue()) 2058 .Case("obj", OutputFile) 2059 .Default(llvm::sys::path::filename(OutputFile).str()); 2060 2061 // The memory profile runtime appends the pid to make this name more unique. 2062 const char *MemProfileBasename = "memprof.profraw"; 2063 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 2064 SmallString<128> Path(Args.getLastArgValue(OPT_fmemory_profile_EQ)); 2065 llvm::sys::path::append(Path, MemProfileBasename); 2066 Opts.MemoryProfileOutput = std::string(Path); 2067 } else if (Args.hasArg(OPT_fmemory_profile)) 2068 Opts.MemoryProfileOutput = MemProfileBasename; 2069 2070 if (Opts.CoverageNotesFile.size() || Opts.CoverageDataFile.size()) { 2071 if (Args.hasArg(OPT_coverage_version_EQ)) { 2072 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 2073 if (CoverageVersion.size() != 4) { 2074 Diags.Report(diag::err_drv_invalid_value) 2075 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 2076 << CoverageVersion; 2077 } else { 2078 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 2079 } 2080 } 2081 } 2082 // FIXME: For backend options that are not yet recorded as function 2083 // attributes in the IR, keep track of them so we can embed them in a 2084 // separate data section and use them when building the bitcode. 2085 for (const auto &A : Args) { 2086 // Do not encode output and input. 2087 if (A->getOption().getID() == options::OPT_o || 2088 A->getOption().getID() == options::OPT_INPUT || 2089 A->getOption().getID() == options::OPT_x || 2090 A->getOption().getID() == options::OPT_fembed_bitcode || 2091 A->getOption().matches(options::OPT_W_Group)) 2092 continue; 2093 ArgStringList ASL; 2094 A->render(Args, ASL); 2095 for (const auto &arg : ASL) { 2096 StringRef ArgStr(arg); 2097 llvm::append_range(Opts.CmdArgs, ArgStr); 2098 // using \00 to separate each commandline options. 2099 Opts.CmdArgs.push_back('\0'); 2100 } 2101 } 2102 2103 auto XRayInstrBundles = 2104 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 2105 if (XRayInstrBundles.empty()) 2106 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 2107 else 2108 for (const auto &A : XRayInstrBundles) 2109 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 2110 Diags, Opts.XRayInstrumentationBundle); 2111 2112 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 2113 StringRef Name = A->getValue(); 2114 if (Name == "full") { 2115 Opts.CFProtectionReturn = 1; 2116 Opts.CFProtectionBranch = 1; 2117 } else if (Name == "return") 2118 Opts.CFProtectionReturn = 1; 2119 else if (Name == "branch") 2120 Opts.CFProtectionBranch = 1; 2121 else if (Name != "none") 2122 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2123 } 2124 2125 if (Opts.CFProtectionBranch && T.isRISCV()) { 2126 if (const Arg *A = Args.getLastArg(OPT_mcf_branch_label_scheme_EQ)) { 2127 const auto Scheme = 2128 llvm::StringSwitch<CFBranchLabelSchemeKind>(A->getValue()) 2129 #define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \ 2130 .Case(#FlagVal, CFBranchLabelSchemeKind::Kind) 2131 #include "clang/Basic/CFProtectionOptions.def" 2132 .Default(CFBranchLabelSchemeKind::Default); 2133 if (Scheme != CFBranchLabelSchemeKind::Default) 2134 Opts.setCFBranchLabelScheme(Scheme); 2135 else 2136 Diags.Report(diag::err_drv_invalid_value) 2137 << A->getAsString(Args) << A->getValue(); 2138 } 2139 } 2140 2141 if (const Arg *A = Args.getLastArg(OPT_mfunction_return_EQ)) { 2142 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue()) 2143 .Case("keep", llvm::FunctionReturnThunksKind::Keep) 2144 .Case("thunk-extern", llvm::FunctionReturnThunksKind::Extern) 2145 .Default(llvm::FunctionReturnThunksKind::Invalid); 2146 // SystemZ might want to add support for "expolines." 2147 if (!T.isX86()) 2148 Diags.Report(diag::err_drv_argument_not_allowed_with) 2149 << A->getSpelling() << T.getTriple(); 2150 else if (Val == llvm::FunctionReturnThunksKind::Invalid) 2151 Diags.Report(diag::err_drv_invalid_value) 2152 << A->getAsString(Args) << A->getValue(); 2153 else if (Val == llvm::FunctionReturnThunksKind::Extern && 2154 Args.getLastArgValue(OPT_mcmodel_EQ) == "large") 2155 Diags.Report(diag::err_drv_argument_not_allowed_with) 2156 << A->getAsString(Args) 2157 << Args.getLastArg(OPT_mcmodel_EQ)->getAsString(Args); 2158 else 2159 Opts.FunctionReturnThunks = static_cast<unsigned>(Val); 2160 } 2161 2162 for (auto *A : 2163 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 2164 CodeGenOptions::BitcodeFileToLink F; 2165 F.Filename = A->getValue(); 2166 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 2167 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 2168 // When linking CUDA bitcode, propagate function attributes so that 2169 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 2170 F.PropagateAttrs = true; 2171 F.Internalize = true; 2172 } 2173 Opts.LinkBitcodeFiles.push_back(F); 2174 } 2175 2176 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 2177 StringRef Val = A->getValue(); 2178 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 2179 Opts.FP32DenormalMode = Opts.FPDenormalMode; 2180 if (!Opts.FPDenormalMode.isValid()) 2181 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2182 } 2183 2184 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 2185 StringRef Val = A->getValue(); 2186 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 2187 if (!Opts.FP32DenormalMode.isValid()) 2188 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 2189 } 2190 2191 // X86_32 has -fppc-struct-return and -freg-struct-return. 2192 // PPC32 has -maix-struct-return and -msvr4-struct-return. 2193 if (Arg *A = 2194 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 2195 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 2196 // TODO: We might want to consider enabling these options on AIX in the 2197 // future. 2198 if (T.isOSAIX()) 2199 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2200 << A->getSpelling() << T.str(); 2201 2202 const Option &O = A->getOption(); 2203 if (O.matches(OPT_fpcc_struct_return) || 2204 O.matches(OPT_maix_struct_return)) { 2205 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 2206 } else { 2207 assert(O.matches(OPT_freg_struct_return) || 2208 O.matches(OPT_msvr4_struct_return)); 2209 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 2210 } 2211 } 2212 2213 if (Arg *A = Args.getLastArg(OPT_mxcoff_roptr)) { 2214 if (!T.isOSAIX()) 2215 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2216 << A->getSpelling() << T.str(); 2217 2218 // Since the storage mapping class is specified per csect, 2219 // without using data sections, it is less effective to use read-only 2220 // pointers. Using read-only pointers may cause other RO variables in the 2221 // same csect to become RW when the linker acts upon `-bforceimprw`; 2222 // therefore, we require that separate data sections 2223 // are used when `-mxcoff-roptr` is in effect. We respect the setting of 2224 // data-sections since we have not found reasons to do otherwise that 2225 // overcome the user surprise of not respecting the setting. 2226 if (!Args.hasFlag(OPT_fdata_sections, OPT_fno_data_sections, false)) 2227 Diags.Report(diag::err_roptr_requires_data_sections); 2228 2229 Opts.XCOFFReadOnlyPointers = true; 2230 } 2231 2232 if (Arg *A = Args.getLastArg(OPT_mabi_EQ_quadword_atomics)) { 2233 if (!T.isOSAIX() || T.isPPC32()) 2234 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2235 << A->getSpelling() << T.str(); 2236 } 2237 2238 bool NeedLocTracking = false; 2239 2240 if (!Opts.OptRecordFile.empty()) 2241 NeedLocTracking = true; 2242 2243 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 2244 Opts.OptRecordPasses = A->getValue(); 2245 NeedLocTracking = true; 2246 } 2247 2248 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 2249 Opts.OptRecordFormat = A->getValue(); 2250 NeedLocTracking = true; 2251 } 2252 2253 Opts.OptimizationRemark = 2254 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 2255 2256 Opts.OptimizationRemarkMissed = 2257 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 2258 2259 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 2260 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 2261 2262 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 2263 Opts.OptimizationRemarkMissed.hasValidPattern() || 2264 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 2265 2266 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 2267 bool UsingProfile = 2268 UsingSampleProfile || !Opts.ProfileInstrumentUsePath.empty(); 2269 2270 if (Opts.DiagnosticsWithHotness && !UsingProfile && 2271 // An IR file will contain PGO as metadata 2272 IK.getLanguage() != Language::LLVM_IR) 2273 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 2274 << "-fdiagnostics-show-hotness"; 2275 2276 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 2277 if (auto *arg = 2278 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 2279 auto ResultOrErr = 2280 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 2281 2282 if (!ResultOrErr) { 2283 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 2284 << "-fdiagnostics-hotness-threshold="; 2285 } else { 2286 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 2287 if ((!Opts.DiagnosticsHotnessThreshold || 2288 *Opts.DiagnosticsHotnessThreshold > 0) && 2289 !UsingProfile) 2290 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 2291 << "-fdiagnostics-hotness-threshold="; 2292 } 2293 } 2294 2295 if (auto *arg = 2296 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 2297 auto ResultOrErr = parseToleranceOption(arg->getValue()); 2298 2299 if (!ResultOrErr) { 2300 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 2301 << "-fdiagnostics-misexpect-tolerance="; 2302 } else { 2303 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 2304 if ((!Opts.DiagnosticsMisExpectTolerance || 2305 *Opts.DiagnosticsMisExpectTolerance > 0) && 2306 !UsingProfile) 2307 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 2308 << "-fdiagnostics-misexpect-tolerance="; 2309 } 2310 } 2311 2312 // If the user requested to use a sample profile for PGO, then the 2313 // backend will need to track source location information so the profile 2314 // can be incorporated into the IR. 2315 if (UsingSampleProfile) 2316 NeedLocTracking = true; 2317 2318 if (!Opts.StackUsageOutput.empty()) 2319 NeedLocTracking = true; 2320 2321 // If the user requested a flag that requires source locations available in 2322 // the backend, make sure that the backend tracks source location information. 2323 if (NeedLocTracking && 2324 Opts.getDebugInfo() == llvm::codegenoptions::NoDebugInfo) 2325 Opts.setDebugInfo(llvm::codegenoptions::LocTrackingOnly); 2326 2327 // Parse -fsanitize-recover= arguments. 2328 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2329 parseSanitizerKinds("-fsanitize-recover=", 2330 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2331 Opts.SanitizeRecover); 2332 parseSanitizerKinds("-fsanitize-trap=", 2333 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2334 Opts.SanitizeTrap); 2335 parseSanitizerKinds("-fsanitize-merge=", 2336 Args.getAllArgValues(OPT_fsanitize_merge_handlers_EQ), 2337 Diags, Opts.SanitizeMergeHandlers); 2338 2339 // Parse -fsanitize-skip-hot-cutoff= arguments. 2340 Opts.SanitizeSkipHotCutoffs = parseSanitizerWeightedKinds( 2341 "-fsanitize-skip-hot-cutoff=", 2342 Args.getAllArgValues(OPT_fsanitize_skip_hot_cutoff_EQ), Diags); 2343 2344 parseSanitizerKinds( 2345 "-fsanitize-annotate-debug-info=", 2346 Args.getAllArgValues(OPT_fsanitize_annotate_debug_info_EQ), Diags, 2347 Opts.SanitizeAnnotateDebugInfo); 2348 2349 if (StringRef V = 2350 Args.getLastArgValue(OPT_fallow_runtime_check_skip_hot_cutoff_EQ); 2351 !V.empty()) { 2352 double A; 2353 if (V.getAsDouble(A) || A < 0.0 || A > 1.0) { 2354 Diags.Report(diag::err_drv_invalid_value) 2355 << "-fallow-runtime-check-skip-hot-cutoff=" << V; 2356 } else { 2357 Opts.AllowRuntimeCheckSkipHotCutoff = A; 2358 } 2359 } 2360 2361 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2362 2363 if (!LangOpts->CUDAIsDevice) 2364 parsePointerAuthOptions(Opts.PointerAuth, *LangOpts, T, Diags); 2365 2366 if (Args.hasArg(options::OPT_ffinite_loops)) 2367 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2368 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2369 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2370 2371 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2372 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2373 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2374 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2375 2376 Opts.StaticClosure = Args.hasArg(options::OPT_static_libclosure); 2377 2378 return Diags.getNumErrors() == NumErrorsBefore; 2379 } 2380 2381 static void GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2382 ArgumentConsumer Consumer) { 2383 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2384 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 2385 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2386 #include "clang/Driver/Options.inc" 2387 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2388 2389 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2390 GenerateArg(Consumer, OPT_show_includes); 2391 2392 for (const auto &Dep : Opts.ExtraDeps) { 2393 switch (Dep.second) { 2394 case EDK_SanitizeIgnorelist: 2395 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2396 continue; 2397 case EDK_ModuleFile: 2398 // Module file arguments are generated from FrontendOptions and 2399 // HeaderSearchOptions. 2400 continue; 2401 case EDK_ProfileList: 2402 // Profile list arguments are generated from LanguageOptions via the 2403 // marshalling infrastructure. 2404 continue; 2405 case EDK_DepFileEntry: 2406 GenerateArg(Consumer, OPT_fdepfile_entry, Dep.first); 2407 break; 2408 } 2409 } 2410 } 2411 2412 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2413 ArgList &Args, DiagnosticsEngine &Diags, 2414 frontend::ActionKind Action, 2415 bool ShowLineMarkers) { 2416 unsigned NumErrorsBefore = Diags.getNumErrors(); 2417 2418 DependencyOutputOptions &DependencyOutputOpts = Opts; 2419 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 2420 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2421 #include "clang/Driver/Options.inc" 2422 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2423 2424 if (Args.hasArg(OPT_show_includes)) { 2425 // Writing both /showIncludes and preprocessor output to stdout 2426 // would produce interleaved output, so use stderr for /showIncludes. 2427 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2428 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2429 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2430 else 2431 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2432 } else { 2433 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2434 } 2435 2436 // Add sanitizer ignorelists as extra dependencies. 2437 // They won't be discovered by the regular preprocessor, so 2438 // we let make / ninja to know about this implicit dependency. 2439 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2440 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2441 StringRef Val = A->getValue(); 2442 if (!Val.contains('=')) 2443 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2444 } 2445 if (Opts.IncludeSystemHeaders) { 2446 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2447 StringRef Val = A->getValue(); 2448 if (!Val.contains('=')) 2449 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2450 } 2451 } 2452 } 2453 2454 // -fprofile-list= dependencies. 2455 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2456 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2457 2458 // Propagate the extra dependencies. 2459 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2460 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2461 2462 // Only the -fmodule-file=<file> form. 2463 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2464 StringRef Val = A->getValue(); 2465 if (!Val.contains('=')) 2466 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2467 } 2468 2469 // Check for invalid combinations of header-include-format 2470 // and header-include-filtering. 2471 if (Opts.HeaderIncludeFormat == HIFMT_Textual && 2472 Opts.HeaderIncludeFiltering != HIFIL_None) { 2473 if (Args.hasArg(OPT_header_include_format_EQ)) 2474 Diags.Report(diag::err_drv_print_header_cc1_invalid_combination) 2475 << headerIncludeFormatKindToString(Opts.HeaderIncludeFormat) 2476 << headerIncludeFilteringKindToString(Opts.HeaderIncludeFiltering); 2477 else 2478 Diags.Report(diag::err_drv_print_header_cc1_invalid_filtering) 2479 << headerIncludeFilteringKindToString(Opts.HeaderIncludeFiltering); 2480 } else if (Opts.HeaderIncludeFormat == HIFMT_JSON && 2481 Opts.HeaderIncludeFiltering == HIFIL_None) { 2482 if (Args.hasArg(OPT_header_include_filtering_EQ)) 2483 Diags.Report(diag::err_drv_print_header_cc1_invalid_combination) 2484 << headerIncludeFormatKindToString(Opts.HeaderIncludeFormat) 2485 << headerIncludeFilteringKindToString(Opts.HeaderIncludeFiltering); 2486 else 2487 Diags.Report(diag::err_drv_print_header_cc1_invalid_format) 2488 << headerIncludeFormatKindToString(Opts.HeaderIncludeFormat); 2489 } 2490 2491 return Diags.getNumErrors() == NumErrorsBefore; 2492 } 2493 2494 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2495 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2496 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2497 // Support both clang's -f[no-]color-diagnostics and gcc's 2498 // -f[no-]diagnostics-colors[=never|always|auto]. 2499 enum { 2500 Colors_On, 2501 Colors_Off, 2502 Colors_Auto 2503 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2504 for (auto *A : Args) { 2505 const Option &O = A->getOption(); 2506 if (O.matches(options::OPT_fcolor_diagnostics)) { 2507 ShowColors = Colors_On; 2508 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2509 ShowColors = Colors_Off; 2510 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2511 StringRef Value(A->getValue()); 2512 if (Value == "always") 2513 ShowColors = Colors_On; 2514 else if (Value == "never") 2515 ShowColors = Colors_Off; 2516 else if (Value == "auto") 2517 ShowColors = Colors_Auto; 2518 } 2519 } 2520 return ShowColors == Colors_On || 2521 (ShowColors == Colors_Auto && 2522 llvm::sys::Process::StandardErrHasColors()); 2523 } 2524 2525 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2526 DiagnosticsEngine &Diags) { 2527 bool Success = true; 2528 for (const auto &Prefix : VerifyPrefixes) { 2529 // Every prefix must start with a letter and contain only alphanumeric 2530 // characters, hyphens, and underscores. 2531 auto BadChar = llvm::find_if(Prefix, [](char C) { 2532 return !isAlphanumeric(C) && C != '-' && C != '_'; 2533 }); 2534 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2535 Success = false; 2536 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2537 Diags.Report(diag::note_drv_verify_prefix_spelling); 2538 } 2539 } 2540 return Success; 2541 } 2542 2543 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2544 ArgumentConsumer Consumer) { 2545 const FileSystemOptions &FileSystemOpts = Opts; 2546 2547 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \ 2548 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2549 #include "clang/Driver/Options.inc" 2550 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2551 } 2552 2553 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2554 DiagnosticsEngine &Diags) { 2555 unsigned NumErrorsBefore = Diags.getNumErrors(); 2556 2557 FileSystemOptions &FileSystemOpts = Opts; 2558 2559 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \ 2560 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2561 #include "clang/Driver/Options.inc" 2562 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2563 2564 return Diags.getNumErrors() == NumErrorsBefore; 2565 } 2566 2567 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2568 ArgumentConsumer Consumer) { 2569 const MigratorOptions &MigratorOpts = Opts; 2570 #define MIGRATOR_OPTION_WITH_MARSHALLING(...) \ 2571 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2572 #include "clang/Driver/Options.inc" 2573 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2574 } 2575 2576 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2577 DiagnosticsEngine &Diags) { 2578 unsigned NumErrorsBefore = Diags.getNumErrors(); 2579 2580 MigratorOptions &MigratorOpts = Opts; 2581 2582 #define MIGRATOR_OPTION_WITH_MARSHALLING(...) \ 2583 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2584 #include "clang/Driver/Options.inc" 2585 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2586 2587 return Diags.getNumErrors() == NumErrorsBefore; 2588 } 2589 2590 void CompilerInvocationBase::GenerateDiagnosticArgs( 2591 const DiagnosticOptions &Opts, ArgumentConsumer Consumer, 2592 bool DefaultDiagColor) { 2593 const DiagnosticOptions *DiagnosticOpts = &Opts; 2594 #define DIAG_OPTION_WITH_MARSHALLING(...) \ 2595 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2596 #include "clang/Driver/Options.inc" 2597 #undef DIAG_OPTION_WITH_MARSHALLING 2598 2599 if (!Opts.DiagnosticSerializationFile.empty()) 2600 GenerateArg(Consumer, OPT_diagnostic_serialized_file, 2601 Opts.DiagnosticSerializationFile); 2602 2603 if (Opts.ShowColors) 2604 GenerateArg(Consumer, OPT_fcolor_diagnostics); 2605 2606 if (Opts.VerifyDiagnostics && 2607 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2608 GenerateArg(Consumer, OPT_verify); 2609 2610 for (const auto &Prefix : Opts.VerifyPrefixes) 2611 if (Prefix != "expected") 2612 GenerateArg(Consumer, OPT_verify_EQ, Prefix); 2613 2614 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2615 if (VIU == DiagnosticLevelMask::None) { 2616 // This is the default, don't generate anything. 2617 } else if (VIU == DiagnosticLevelMask::All) { 2618 GenerateArg(Consumer, OPT_verify_ignore_unexpected); 2619 } else { 2620 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2621 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "note"); 2622 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2623 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "remark"); 2624 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2625 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "warning"); 2626 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2627 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "error"); 2628 } 2629 2630 for (const auto &Warning : Opts.Warnings) { 2631 // This option is automatically generated from UndefPrefixes. 2632 if (Warning == "undef-prefix") 2633 continue; 2634 // This option is automatically generated from CheckConstexprFunctionBodies. 2635 if (Warning == "invalid-constexpr" || Warning == "no-invalid-constexpr") 2636 continue; 2637 Consumer(StringRef("-W") + Warning); 2638 } 2639 2640 for (const auto &Remark : Opts.Remarks) { 2641 // These arguments are generated from OptimizationRemark fields of 2642 // CodeGenOptions. 2643 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2644 "pass-analysis", "no-pass-analysis", 2645 "pass-missed", "no-pass-missed"}; 2646 if (llvm::is_contained(IgnoredRemarks, Remark)) 2647 continue; 2648 2649 Consumer(StringRef("-R") + Remark); 2650 } 2651 2652 if (!Opts.DiagnosticSuppressionMappingsFile.empty()) { 2653 GenerateArg(Consumer, OPT_warning_suppression_mappings_EQ, 2654 Opts.DiagnosticSuppressionMappingsFile); 2655 } 2656 } 2657 2658 std::unique_ptr<DiagnosticOptions> 2659 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2660 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2661 unsigned MissingArgIndex, MissingArgCount; 2662 InputArgList Args = getDriverOptTable().ParseArgs( 2663 Argv.slice(1), MissingArgIndex, MissingArgCount); 2664 2665 bool ShowColors = true; 2666 if (std::optional<std::string> NoColor = 2667 llvm::sys::Process::GetEnv("NO_COLOR"); 2668 NoColor && !NoColor->empty()) { 2669 // If the user set the NO_COLOR environment variable, we'll honor that 2670 // unless the command line overrides it. 2671 ShowColors = false; 2672 } 2673 2674 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2675 // Any errors that would be diagnosed here will also be diagnosed later, 2676 // when the DiagnosticsEngine actually exists. 2677 (void)ParseDiagnosticArgs(*DiagOpts, Args, /*Diags=*/nullptr, ShowColors); 2678 return DiagOpts; 2679 } 2680 2681 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2682 DiagnosticsEngine *Diags, 2683 bool DefaultDiagColor) { 2684 std::optional<DiagnosticOptions> IgnoringDiagOpts; 2685 std::optional<DiagnosticsEngine> IgnoringDiags; 2686 if (!Diags) { 2687 IgnoringDiagOpts.emplace(); 2688 IgnoringDiags.emplace(new DiagnosticIDs(), *IgnoringDiagOpts, 2689 new IgnoringDiagConsumer()); 2690 Diags = &*IgnoringDiags; 2691 } 2692 2693 unsigned NumErrorsBefore = Diags->getNumErrors(); 2694 2695 // The key paths of diagnostic options defined in Options.td start with 2696 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2697 DiagnosticOptions *DiagnosticOpts = &Opts; 2698 2699 #define DIAG_OPTION_WITH_MARSHALLING(...) \ 2700 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, __VA_ARGS__) 2701 #include "clang/Driver/Options.inc" 2702 #undef DIAG_OPTION_WITH_MARSHALLING 2703 2704 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2705 2706 if (Arg *A = 2707 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2708 Opts.DiagnosticSerializationFile = A->getValue(); 2709 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2710 2711 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2712 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2713 if (Args.hasArg(OPT_verify)) 2714 Opts.VerifyPrefixes.push_back("expected"); 2715 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2716 // then sort it to prepare for fast lookup using std::binary_search. 2717 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2718 Opts.VerifyDiagnostics = false; 2719 else 2720 llvm::sort(Opts.VerifyPrefixes); 2721 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2722 parseDiagnosticLevelMask( 2723 "-verify-ignore-unexpected=", 2724 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2725 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2726 DiagMask = DiagnosticLevelMask::All; 2727 Opts.setVerifyIgnoreUnexpected(DiagMask); 2728 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2729 Diags->Report(diag::warn_ignoring_ftabstop_value) 2730 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2731 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2732 } 2733 2734 if (const Arg *A = Args.getLastArg(OPT_warning_suppression_mappings_EQ)) 2735 Opts.DiagnosticSuppressionMappingsFile = A->getValue(); 2736 2737 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2738 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2739 2740 return Diags->getNumErrors() == NumErrorsBefore; 2741 } 2742 2743 /// Parse the argument to the -ftest-module-file-extension 2744 /// command-line argument. 2745 /// 2746 /// \returns true on error, false on success. 2747 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2748 std::string &BlockName, 2749 unsigned &MajorVersion, 2750 unsigned &MinorVersion, 2751 bool &Hashed, 2752 std::string &UserInfo) { 2753 SmallVector<StringRef, 5> Args; 2754 Arg.split(Args, ':', 5); 2755 if (Args.size() < 5) 2756 return true; 2757 2758 BlockName = std::string(Args[0]); 2759 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2760 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2761 if (Args[3].getAsInteger(2, Hashed)) return true; 2762 if (Args.size() > 4) 2763 UserInfo = std::string(Args[4]); 2764 return false; 2765 } 2766 2767 /// Return a table that associates command line option specifiers with the 2768 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2769 /// intentionally missing, as this case is handled separately from other 2770 /// frontend options. 2771 static const auto &getFrontendActionTable() { 2772 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2773 {frontend::ASTDeclList, OPT_ast_list}, 2774 2775 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2776 {frontend::ASTDump, OPT_ast_dump_all}, 2777 {frontend::ASTDump, OPT_ast_dump_EQ}, 2778 {frontend::ASTDump, OPT_ast_dump}, 2779 {frontend::ASTDump, OPT_ast_dump_lookups}, 2780 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2781 2782 {frontend::ASTPrint, OPT_ast_print}, 2783 {frontend::ASTView, OPT_ast_view}, 2784 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2785 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2786 {frontend::DumpTokens, OPT_dump_tokens}, 2787 {frontend::EmitAssembly, OPT_S}, 2788 {frontend::EmitBC, OPT_emit_llvm_bc}, 2789 {frontend::EmitCIR, OPT_emit_cir}, 2790 {frontend::EmitHTML, OPT_emit_html}, 2791 {frontend::EmitLLVM, OPT_emit_llvm}, 2792 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2793 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2794 {frontend::EmitObj, OPT_emit_obj}, 2795 {frontend::ExtractAPI, OPT_extract_api}, 2796 2797 {frontend::FixIt, OPT_fixit_EQ}, 2798 {frontend::FixIt, OPT_fixit}, 2799 2800 {frontend::GenerateModule, OPT_emit_module}, 2801 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2802 {frontend::GenerateReducedModuleInterface, 2803 OPT_emit_reduced_module_interface}, 2804 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2805 {frontend::GeneratePCH, OPT_emit_pch}, 2806 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2807 {frontend::InitOnly, OPT_init_only}, 2808 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2809 {frontend::ModuleFileInfo, OPT_module_file_info}, 2810 {frontend::VerifyPCH, OPT_verify_pch}, 2811 {frontend::PrintPreamble, OPT_print_preamble}, 2812 {frontend::PrintPreprocessedInput, OPT_E}, 2813 {frontend::TemplightDump, OPT_templight_dump}, 2814 {frontend::RewriteMacros, OPT_rewrite_macros}, 2815 {frontend::RewriteObjC, OPT_rewrite_objc}, 2816 {frontend::RewriteTest, OPT_rewrite_test}, 2817 {frontend::RunAnalysis, OPT_analyze}, 2818 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2819 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2820 OPT_print_dependency_directives_minimized_source}, 2821 }; 2822 2823 return Table; 2824 } 2825 2826 /// Maps command line option to frontend action. 2827 static std::optional<frontend::ActionKind> 2828 getFrontendAction(OptSpecifier &Opt) { 2829 for (const auto &ActionOpt : getFrontendActionTable()) 2830 if (ActionOpt.second == Opt.getID()) 2831 return ActionOpt.first; 2832 2833 return std::nullopt; 2834 } 2835 2836 /// Maps frontend action to command line option. 2837 static std::optional<OptSpecifier> 2838 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2839 for (const auto &ActionOpt : getFrontendActionTable()) 2840 if (ActionOpt.first == ProgramAction) 2841 return OptSpecifier(ActionOpt.second); 2842 2843 return std::nullopt; 2844 } 2845 2846 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2847 ArgumentConsumer Consumer, bool IsHeader) { 2848 const FrontendOptions &FrontendOpts = Opts; 2849 #define FRONTEND_OPTION_WITH_MARSHALLING(...) \ 2850 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2851 #include "clang/Driver/Options.inc" 2852 #undef FRONTEND_OPTION_WITH_MARSHALLING 2853 2854 std::optional<OptSpecifier> ProgramActionOpt = 2855 getProgramActionOpt(Opts.ProgramAction); 2856 2857 // Generating a simple flag covers most frontend actions. 2858 std::function<void()> GenerateProgramAction = [&]() { 2859 GenerateArg(Consumer, *ProgramActionOpt); 2860 }; 2861 2862 if (!ProgramActionOpt) { 2863 // PluginAction is the only program action handled separately. 2864 assert(Opts.ProgramAction == frontend::PluginAction && 2865 "Frontend action without option."); 2866 GenerateProgramAction = [&]() { 2867 GenerateArg(Consumer, OPT_plugin, Opts.ActionName); 2868 }; 2869 } 2870 2871 // FIXME: Simplify the complex 'AST dump' command line. 2872 if (Opts.ProgramAction == frontend::ASTDump) { 2873 GenerateProgramAction = [&]() { 2874 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2875 // marshalling infrastructure. 2876 2877 if (Opts.ASTDumpFormat != ADOF_Default) { 2878 StringRef Format; 2879 switch (Opts.ASTDumpFormat) { 2880 case ADOF_Default: 2881 llvm_unreachable("Default AST dump format."); 2882 case ADOF_JSON: 2883 Format = "json"; 2884 break; 2885 } 2886 2887 if (Opts.ASTDumpAll) 2888 GenerateArg(Consumer, OPT_ast_dump_all_EQ, Format); 2889 if (Opts.ASTDumpDecls) 2890 GenerateArg(Consumer, OPT_ast_dump_EQ, Format); 2891 } else { 2892 if (Opts.ASTDumpAll) 2893 GenerateArg(Consumer, OPT_ast_dump_all); 2894 if (Opts.ASTDumpDecls) 2895 GenerateArg(Consumer, OPT_ast_dump); 2896 } 2897 }; 2898 } 2899 2900 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2901 GenerateProgramAction = [&]() { 2902 GenerateArg(Consumer, OPT_fixit_EQ, Opts.FixItSuffix); 2903 }; 2904 } 2905 2906 GenerateProgramAction(); 2907 2908 for (const auto &PluginArgs : Opts.PluginArgs) { 2909 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2910 for (const auto &PluginArg : PluginArgs.second) 2911 denormalizeString(Consumer, 2912 Opt.getPrefix() + Opt.getName() + PluginArgs.first, 2913 Opt.getKind(), 0, PluginArg); 2914 } 2915 2916 for (const auto &Ext : Opts.ModuleFileExtensions) 2917 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2918 GenerateArg(Consumer, OPT_ftest_module_file_extension_EQ, TestExt->str()); 2919 2920 if (!Opts.CodeCompletionAt.FileName.empty()) 2921 GenerateArg(Consumer, OPT_code_completion_at, 2922 Opts.CodeCompletionAt.ToString()); 2923 2924 for (const auto &Plugin : Opts.Plugins) 2925 GenerateArg(Consumer, OPT_load, Plugin); 2926 2927 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2928 2929 for (const auto &ModuleFile : Opts.ModuleFiles) 2930 GenerateArg(Consumer, OPT_fmodule_file, ModuleFile); 2931 2932 if (Opts.AuxTargetCPU) 2933 GenerateArg(Consumer, OPT_aux_target_cpu, *Opts.AuxTargetCPU); 2934 2935 if (Opts.AuxTargetFeatures) 2936 for (const auto &Feature : *Opts.AuxTargetFeatures) 2937 GenerateArg(Consumer, OPT_aux_target_feature, Feature); 2938 2939 { 2940 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2941 StringRef ModuleMap = 2942 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2943 StringRef HeaderUnit = ""; 2944 switch (Opts.DashX.getHeaderUnitKind()) { 2945 case InputKind::HeaderUnit_None: 2946 break; 2947 case InputKind::HeaderUnit_User: 2948 HeaderUnit = "-user"; 2949 break; 2950 case InputKind::HeaderUnit_System: 2951 HeaderUnit = "-system"; 2952 break; 2953 case InputKind::HeaderUnit_Abs: 2954 HeaderUnit = "-header-unit"; 2955 break; 2956 } 2957 StringRef Header = IsHeader ? "-header" : ""; 2958 2959 StringRef Lang; 2960 switch (Opts.DashX.getLanguage()) { 2961 case Language::C: 2962 Lang = "c"; 2963 break; 2964 case Language::OpenCL: 2965 Lang = "cl"; 2966 break; 2967 case Language::OpenCLCXX: 2968 Lang = "clcpp"; 2969 break; 2970 case Language::CUDA: 2971 Lang = "cuda"; 2972 break; 2973 case Language::HIP: 2974 Lang = "hip"; 2975 break; 2976 case Language::CXX: 2977 Lang = "c++"; 2978 break; 2979 case Language::ObjC: 2980 Lang = "objective-c"; 2981 break; 2982 case Language::ObjCXX: 2983 Lang = "objective-c++"; 2984 break; 2985 case Language::Asm: 2986 Lang = "assembler-with-cpp"; 2987 break; 2988 case Language::Unknown: 2989 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2990 "Generating -x argument for unknown language (not precompiled)."); 2991 Lang = "ast"; 2992 break; 2993 case Language::LLVM_IR: 2994 Lang = "ir"; 2995 break; 2996 case Language::HLSL: 2997 Lang = "hlsl"; 2998 break; 2999 case Language::CIR: 3000 Lang = "cir"; 3001 break; 3002 } 3003 3004 GenerateArg(Consumer, OPT_x, 3005 Lang + HeaderUnit + Header + ModuleMap + Preprocessed); 3006 } 3007 3008 // OPT_INPUT has a unique class, generate it directly. 3009 for (const auto &Input : Opts.Inputs) 3010 Consumer(Input.getFile()); 3011 } 3012 3013 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 3014 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 3015 unsigned NumErrorsBefore = Diags.getNumErrors(); 3016 3017 FrontendOptions &FrontendOpts = Opts; 3018 3019 #define FRONTEND_OPTION_WITH_MARSHALLING(...) \ 3020 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 3021 #include "clang/Driver/Options.inc" 3022 #undef FRONTEND_OPTION_WITH_MARSHALLING 3023 3024 Opts.ProgramAction = frontend::ParseSyntaxOnly; 3025 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 3026 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 3027 std::optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 3028 assert(ProgramAction && "Option specifier not in Action_Group."); 3029 3030 if (ProgramAction == frontend::ASTDump && 3031 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 3032 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 3033 .CaseLower("default", ADOF_Default) 3034 .CaseLower("json", ADOF_JSON) 3035 .Default(std::numeric_limits<unsigned>::max()); 3036 3037 if (Val != std::numeric_limits<unsigned>::max()) 3038 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 3039 else { 3040 Diags.Report(diag::err_drv_invalid_value) 3041 << A->getAsString(Args) << A->getValue(); 3042 Opts.ASTDumpFormat = ADOF_Default; 3043 } 3044 } 3045 3046 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 3047 Opts.FixItSuffix = A->getValue(); 3048 3049 if (ProgramAction == frontend::GenerateInterfaceStubs) { 3050 StringRef ArgStr = 3051 Args.hasArg(OPT_interface_stub_version_EQ) 3052 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 3053 : "ifs-v1"; 3054 if (ArgStr == "experimental-yaml-elf-v1" || 3055 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 3056 ArgStr == "experimental-tapi-elf-v1") { 3057 std::string ErrorMessage = 3058 "Invalid interface stub format: " + ArgStr.str() + 3059 " is deprecated."; 3060 Diags.Report(diag::err_drv_invalid_value) 3061 << "Must specify a valid interface stub format type, ie: " 3062 "-interface-stub-version=ifs-v1" 3063 << ErrorMessage; 3064 ProgramAction = frontend::ParseSyntaxOnly; 3065 } else if (!ArgStr.starts_with("ifs-")) { 3066 std::string ErrorMessage = 3067 "Invalid interface stub format: " + ArgStr.str() + "."; 3068 Diags.Report(diag::err_drv_invalid_value) 3069 << "Must specify a valid interface stub format type, ie: " 3070 "-interface-stub-version=ifs-v1" 3071 << ErrorMessage; 3072 ProgramAction = frontend::ParseSyntaxOnly; 3073 } 3074 } 3075 3076 Opts.ProgramAction = *ProgramAction; 3077 3078 // Catch common mistakes when multiple actions are specified for cc1 (e.g. 3079 // -S -emit-llvm means -emit-llvm while -emit-llvm -S means -S). However, to 3080 // support driver `-c -Xclang ACTION` (-cc1 -emit-llvm file -main-file-name 3081 // X ACTION), we suppress the error when the two actions are separated by 3082 // -main-file-name. 3083 // 3084 // As an exception, accept composable -ast-dump*. 3085 if (!A->getSpelling().starts_with("-ast-dump")) { 3086 const Arg *SavedAction = nullptr; 3087 for (const Arg *AA : 3088 Args.filtered(OPT_Action_Group, OPT_main_file_name)) { 3089 if (AA->getOption().matches(OPT_main_file_name)) { 3090 SavedAction = nullptr; 3091 } else if (!SavedAction) { 3092 SavedAction = AA; 3093 } else { 3094 if (!A->getOption().matches(OPT_ast_dump_EQ)) 3095 Diags.Report(diag::err_fe_invalid_multiple_actions) 3096 << SavedAction->getSpelling() << A->getSpelling(); 3097 break; 3098 } 3099 } 3100 } 3101 } 3102 3103 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 3104 Opts.Plugins.emplace_back(A->getValue(0)); 3105 Opts.ProgramAction = frontend::PluginAction; 3106 Opts.ActionName = A->getValue(); 3107 } 3108 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 3109 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 3110 3111 for (const std::string &Arg : 3112 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 3113 std::string BlockName; 3114 unsigned MajorVersion; 3115 unsigned MinorVersion; 3116 bool Hashed; 3117 std::string UserInfo; 3118 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 3119 MinorVersion, Hashed, UserInfo)) { 3120 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 3121 3122 continue; 3123 } 3124 3125 // Add the testing module file extension. 3126 Opts.ModuleFileExtensions.push_back( 3127 std::make_shared<TestModuleFileExtension>( 3128 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 3129 } 3130 3131 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 3132 Opts.CodeCompletionAt = 3133 ParsedSourceLocation::FromString(A->getValue()); 3134 if (Opts.CodeCompletionAt.FileName.empty()) { 3135 Diags.Report(diag::err_drv_invalid_value) 3136 << A->getAsString(Args) << A->getValue(); 3137 Diags.Report(diag::note_command_line_code_loc_requirement); 3138 } 3139 } 3140 3141 Opts.Plugins = Args.getAllArgValues(OPT_load); 3142 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 3143 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 3144 // Only the -fmodule-file=<file> form. 3145 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3146 StringRef Val = A->getValue(); 3147 if (!Val.contains('=')) 3148 Opts.ModuleFiles.push_back(std::string(Val)); 3149 } 3150 3151 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 3152 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 3153 << "-emit-module"; 3154 if (Args.hasArg(OPT_fclangir) || Args.hasArg(OPT_emit_cir)) 3155 Opts.UseClangIRPipeline = true; 3156 3157 #if CLANG_ENABLE_CIR 3158 if (Args.hasArg(OPT_clangir_disable_passes)) 3159 Opts.ClangIRDisablePasses = true; 3160 3161 if (Args.hasArg(OPT_clangir_disable_verifier)) 3162 Opts.ClangIRDisableCIRVerifier = true; 3163 #endif // CLANG_ENABLE_CIR 3164 3165 if (Args.hasArg(OPT_aux_target_cpu)) 3166 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 3167 if (Args.hasArg(OPT_aux_target_feature)) 3168 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 3169 3170 InputKind DashX(Language::Unknown); 3171 if (const Arg *A = Args.getLastArg(OPT_x)) { 3172 StringRef XValue = A->getValue(); 3173 3174 // Parse suffixes: 3175 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 3176 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 3177 bool Preprocessed = XValue.consume_back("-cpp-output"); 3178 bool ModuleMap = XValue.consume_back("-module-map"); 3179 // Detect and consume the header indicator. 3180 bool IsHeader = 3181 XValue != "precompiled-header" && XValue.consume_back("-header"); 3182 3183 // If we have c++-{user,system}-header, that indicates a header unit input 3184 // likewise, if the user put -fmodule-header together with a header with an 3185 // absolute path (header-unit-header). 3186 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 3187 if (IsHeader || Preprocessed) { 3188 if (XValue.consume_back("-header-unit")) 3189 HUK = InputKind::HeaderUnit_Abs; 3190 else if (XValue.consume_back("-system")) 3191 HUK = InputKind::HeaderUnit_System; 3192 else if (XValue.consume_back("-user")) 3193 HUK = InputKind::HeaderUnit_User; 3194 } 3195 3196 // The value set by this processing is an un-preprocessed source which is 3197 // not intended to be a module map or header unit. 3198 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 3199 HUK == InputKind::HeaderUnit_None; 3200 3201 // Principal languages. 3202 DashX = llvm::StringSwitch<InputKind>(XValue) 3203 .Case("c", Language::C) 3204 .Case("cl", Language::OpenCL) 3205 .Case("clcpp", Language::OpenCLCXX) 3206 .Case("cuda", Language::CUDA) 3207 .Case("hip", Language::HIP) 3208 .Case("c++", Language::CXX) 3209 .Case("objective-c", Language::ObjC) 3210 .Case("objective-c++", Language::ObjCXX) 3211 .Case("hlsl", Language::HLSL) 3212 .Default(Language::Unknown); 3213 3214 // "objc[++]-cpp-output" is an acceptable synonym for 3215 // "objective-c[++]-cpp-output". 3216 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 3217 HUK == InputKind::HeaderUnit_None) 3218 DashX = llvm::StringSwitch<InputKind>(XValue) 3219 .Case("objc", Language::ObjC) 3220 .Case("objc++", Language::ObjCXX) 3221 .Default(Language::Unknown); 3222 3223 // Some special cases cannot be combined with suffixes. 3224 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 3225 HUK == InputKind::HeaderUnit_None) 3226 DashX = llvm::StringSwitch<InputKind>(XValue) 3227 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 3228 .Case("assembler-with-cpp", Language::Asm) 3229 .Cases("ast", "pcm", "precompiled-header", 3230 InputKind(Language::Unknown, InputKind::Precompiled)) 3231 .Case("ir", Language::LLVM_IR) 3232 .Case("cir", Language::CIR) 3233 .Default(Language::Unknown); 3234 3235 if (DashX.isUnknown()) 3236 Diags.Report(diag::err_drv_invalid_value) 3237 << A->getAsString(Args) << A->getValue(); 3238 3239 if (Preprocessed) 3240 DashX = DashX.getPreprocessed(); 3241 // A regular header is considered mutually exclusive with a header unit. 3242 if (HUK != InputKind::HeaderUnit_None) { 3243 DashX = DashX.withHeaderUnit(HUK); 3244 IsHeaderFile = true; 3245 } else if (IsHeaderFile) 3246 DashX = DashX.getHeader(); 3247 if (ModuleMap) 3248 DashX = DashX.withFormat(InputKind::ModuleMap); 3249 } 3250 3251 // '-' is the default input if none is given. 3252 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 3253 Opts.Inputs.clear(); 3254 if (Inputs.empty()) 3255 Inputs.push_back("-"); 3256 3257 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 3258 Inputs.size() > 1) 3259 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 3260 3261 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 3262 InputKind IK = DashX; 3263 if (IK.isUnknown()) { 3264 IK = FrontendOptions::getInputKindForExtension( 3265 StringRef(Inputs[i]).rsplit('.').second); 3266 // FIXME: Warn on this? 3267 if (IK.isUnknown()) 3268 IK = Language::C; 3269 // FIXME: Remove this hack. 3270 if (i == 0) 3271 DashX = IK; 3272 } 3273 3274 bool IsSystem = false; 3275 3276 // The -emit-module action implicitly takes a module map. 3277 if (Opts.ProgramAction == frontend::GenerateModule && 3278 IK.getFormat() == InputKind::Source) { 3279 IK = IK.withFormat(InputKind::ModuleMap); 3280 IsSystem = Opts.IsSystemModule; 3281 } 3282 3283 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 3284 } 3285 3286 Opts.DashX = DashX; 3287 3288 return Diags.getNumErrors() == NumErrorsBefore; 3289 } 3290 3291 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 3292 void *MainAddr) { 3293 std::string ClangExecutable = 3294 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 3295 return Driver::GetResourcesPath(ClangExecutable); 3296 } 3297 3298 static void GenerateHeaderSearchArgs(const HeaderSearchOptions &Opts, 3299 ArgumentConsumer Consumer) { 3300 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 3301 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \ 3302 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 3303 #include "clang/Driver/Options.inc" 3304 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3305 3306 if (Opts.UseLibcxx) 3307 GenerateArg(Consumer, OPT_stdlib_EQ, "libc++"); 3308 3309 if (!Opts.ModuleCachePath.empty()) 3310 GenerateArg(Consumer, OPT_fmodules_cache_path, Opts.ModuleCachePath); 3311 3312 for (const auto &File : Opts.PrebuiltModuleFiles) 3313 GenerateArg(Consumer, OPT_fmodule_file, File.first + "=" + File.second); 3314 3315 for (const auto &Path : Opts.PrebuiltModulePaths) 3316 GenerateArg(Consumer, OPT_fprebuilt_module_path, Path); 3317 3318 for (const auto &Macro : Opts.ModulesIgnoreMacros) 3319 GenerateArg(Consumer, OPT_fmodules_ignore_macro, Macro.val()); 3320 3321 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 3322 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 3323 std::optional<bool> IsFramework, 3324 std::optional<bool> IgnoreSysRoot) { 3325 return llvm::is_contained(Groups, Entry.Group) && 3326 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 3327 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 3328 }; 3329 3330 auto It = Opts.UserEntries.begin(); 3331 auto End = Opts.UserEntries.end(); 3332 3333 // Add -I... and -F... options in order. 3334 for (; It < End && Matches(*It, {frontend::Angled}, std::nullopt, true); 3335 ++It) { 3336 OptSpecifier Opt = [It, Matches]() { 3337 if (Matches(*It, frontend::Angled, true, true)) 3338 return OPT_F; 3339 if (Matches(*It, frontend::Angled, false, true)) 3340 return OPT_I; 3341 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 3342 }(); 3343 3344 GenerateArg(Consumer, Opt, It->Path); 3345 } 3346 3347 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 3348 // have already been generated as "-I[xx]yy". If that's the case, their 3349 // position on command line was such that this has no semantic impact on 3350 // include paths. 3351 for (; It < End && 3352 Matches(*It, {frontend::After, frontend::Angled}, false, true); 3353 ++It) { 3354 OptSpecifier Opt = 3355 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 3356 GenerateArg(Consumer, Opt, It->Path); 3357 } 3358 3359 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3360 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3361 // command line was such that this has no semantic impact on include paths. 3362 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3363 GenerateArg(Consumer, OPT_idirafter, It->Path); 3364 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3365 GenerateArg(Consumer, OPT_iquote, It->Path); 3366 for (; It < End && Matches(*It, {frontend::System}, false, std::nullopt); 3367 ++It) 3368 GenerateArg(Consumer, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3369 It->Path); 3370 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3371 GenerateArg(Consumer, OPT_iframework, It->Path); 3372 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3373 GenerateArg(Consumer, OPT_iframeworkwithsysroot, It->Path); 3374 3375 // Add the paths for the various language specific isystem flags. 3376 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3377 GenerateArg(Consumer, OPT_c_isystem, It->Path); 3378 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3379 GenerateArg(Consumer, OPT_cxx_isystem, It->Path); 3380 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3381 GenerateArg(Consumer, OPT_objc_isystem, It->Path); 3382 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3383 GenerateArg(Consumer, OPT_objcxx_isystem, It->Path); 3384 3385 // Add the internal paths from a driver that detects standard include paths. 3386 // Note: Some paths that came from "-internal-isystem" arguments may have 3387 // already been generated as "-isystem". If that's the case, their position on 3388 // command line was such that this has no semantic impact on include paths. 3389 for (; It < End && 3390 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3391 ++It) { 3392 OptSpecifier Opt = It->Group == frontend::System 3393 ? OPT_internal_isystem 3394 : OPT_internal_externc_isystem; 3395 GenerateArg(Consumer, Opt, It->Path); 3396 } 3397 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3398 GenerateArg(Consumer, OPT_internal_iframework, It->Path); 3399 3400 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3401 3402 // Add the path prefixes which are implicitly treated as being system headers. 3403 for (const auto &P : Opts.SystemHeaderPrefixes) { 3404 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3405 : OPT_no_system_header_prefix; 3406 GenerateArg(Consumer, Opt, P.Prefix); 3407 } 3408 3409 for (const std::string &F : Opts.VFSOverlayFiles) 3410 GenerateArg(Consumer, OPT_ivfsoverlay, F); 3411 } 3412 3413 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3414 DiagnosticsEngine &Diags, 3415 const std::string &WorkingDir) { 3416 unsigned NumErrorsBefore = Diags.getNumErrors(); 3417 3418 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3419 3420 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \ 3421 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 3422 #include "clang/Driver/Options.inc" 3423 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3424 3425 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3426 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3427 3428 // Canonicalize -fmodules-cache-path before storing it. 3429 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3430 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3431 if (WorkingDir.empty()) 3432 llvm::sys::fs::make_absolute(P); 3433 else 3434 llvm::sys::fs::make_absolute(WorkingDir, P); 3435 } 3436 llvm::sys::path::remove_dots(P); 3437 Opts.ModuleCachePath = std::string(P); 3438 3439 // Only the -fmodule-file=<name>=<file> form. 3440 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3441 StringRef Val = A->getValue(); 3442 if (Val.contains('=')) { 3443 auto Split = Val.split('='); 3444 Opts.PrebuiltModuleFiles.insert_or_assign( 3445 std::string(Split.first), std::string(Split.second)); 3446 } 3447 } 3448 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3449 Opts.AddPrebuiltModulePath(A->getValue()); 3450 3451 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3452 StringRef MacroDef = A->getValue(); 3453 Opts.ModulesIgnoreMacros.insert( 3454 llvm::CachedHashString(MacroDef.split('=').first)); 3455 } 3456 3457 // Add -I... and -F... options in order. 3458 bool IsSysrootSpecified = 3459 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3460 3461 // Expand a leading `=` to the sysroot if one was passed (and it's not a 3462 // framework flag). 3463 auto PrefixHeaderPath = [IsSysrootSpecified, 3464 &Opts](const llvm::opt::Arg *A, 3465 bool IsFramework = false) -> std::string { 3466 assert(A->getNumValues() && "Unexpected empty search path flag!"); 3467 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3468 SmallString<32> Buffer; 3469 llvm::sys::path::append(Buffer, Opts.Sysroot, 3470 llvm::StringRef(A->getValue()).substr(1)); 3471 return std::string(Buffer); 3472 } 3473 return A->getValue(); 3474 }; 3475 3476 for (const auto *A : Args.filtered(OPT_I, OPT_F)) { 3477 bool IsFramework = A->getOption().matches(OPT_F); 3478 Opts.AddPath(PrefixHeaderPath(A, IsFramework), frontend::Angled, 3479 IsFramework, /*IgnoreSysroot=*/true); 3480 } 3481 3482 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3483 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3484 for (const auto *A : 3485 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3486 if (A->getOption().matches(OPT_iprefix)) 3487 Prefix = A->getValue(); 3488 else if (A->getOption().matches(OPT_iwithprefix)) 3489 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3490 else 3491 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3492 } 3493 3494 for (const auto *A : Args.filtered(OPT_idirafter)) 3495 Opts.AddPath(PrefixHeaderPath(A), frontend::After, false, true); 3496 for (const auto *A : Args.filtered(OPT_iquote)) 3497 Opts.AddPath(PrefixHeaderPath(A), frontend::Quoted, false, true); 3498 3499 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) { 3500 if (A->getOption().matches(OPT_iwithsysroot)) { 3501 Opts.AddPath(A->getValue(), frontend::System, false, 3502 /*IgnoreSysRoot=*/false); 3503 continue; 3504 } 3505 Opts.AddPath(PrefixHeaderPath(A), frontend::System, false, true); 3506 } 3507 for (const auto *A : Args.filtered(OPT_iframework)) 3508 Opts.AddPath(A->getValue(), frontend::System, true, true); 3509 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3510 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3511 /*IgnoreSysRoot=*/false); 3512 3513 // Add the paths for the various language specific isystem flags. 3514 for (const auto *A : Args.filtered(OPT_c_isystem)) 3515 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3516 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3517 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3518 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3519 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3520 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3521 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3522 3523 // Add the internal paths from a driver that detects standard include paths. 3524 for (const auto *A : 3525 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3526 frontend::IncludeDirGroup Group = frontend::System; 3527 if (A->getOption().matches(OPT_internal_externc_isystem)) 3528 Group = frontend::ExternCSystem; 3529 Opts.AddPath(A->getValue(), Group, false, true); 3530 } 3531 for (const auto *A : Args.filtered(OPT_internal_iframework)) 3532 Opts.AddPath(A->getValue(), frontend::System, true, true); 3533 3534 // Add the path prefixes which are implicitly treated as being system headers. 3535 for (const auto *A : 3536 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3537 Opts.AddSystemHeaderPrefix( 3538 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3539 3540 for (const auto *A : Args.filtered(OPT_ivfsoverlay, OPT_vfsoverlay)) 3541 Opts.AddVFSOverlayFile(A->getValue()); 3542 3543 return Diags.getNumErrors() == NumErrorsBefore; 3544 } 3545 3546 static void GenerateAPINotesArgs(const APINotesOptions &Opts, 3547 ArgumentConsumer Consumer) { 3548 if (!Opts.SwiftVersion.empty()) 3549 GenerateArg(Consumer, OPT_fapinotes_swift_version, 3550 Opts.SwiftVersion.getAsString()); 3551 3552 for (const auto &Path : Opts.ModuleSearchPaths) 3553 GenerateArg(Consumer, OPT_iapinotes_modules, Path); 3554 } 3555 3556 static void ParseAPINotesArgs(APINotesOptions &Opts, ArgList &Args, 3557 DiagnosticsEngine &diags) { 3558 if (const Arg *A = Args.getLastArg(OPT_fapinotes_swift_version)) { 3559 if (Opts.SwiftVersion.tryParse(A->getValue())) 3560 diags.Report(diag::err_drv_invalid_value) 3561 << A->getAsString(Args) << A->getValue(); 3562 } 3563 for (const Arg *A : Args.filtered(OPT_iapinotes_modules)) 3564 Opts.ModuleSearchPaths.push_back(A->getValue()); 3565 } 3566 3567 static void GeneratePointerAuthArgs(const LangOptions &Opts, 3568 ArgumentConsumer Consumer) { 3569 if (Opts.PointerAuthIntrinsics) 3570 GenerateArg(Consumer, OPT_fptrauth_intrinsics); 3571 if (Opts.PointerAuthCalls) 3572 GenerateArg(Consumer, OPT_fptrauth_calls); 3573 if (Opts.PointerAuthReturns) 3574 GenerateArg(Consumer, OPT_fptrauth_returns); 3575 if (Opts.PointerAuthIndirectGotos) 3576 GenerateArg(Consumer, OPT_fptrauth_indirect_gotos); 3577 if (Opts.PointerAuthAuthTraps) 3578 GenerateArg(Consumer, OPT_fptrauth_auth_traps); 3579 if (Opts.PointerAuthVTPtrAddressDiscrimination) 3580 GenerateArg(Consumer, OPT_fptrauth_vtable_pointer_address_discrimination); 3581 if (Opts.PointerAuthVTPtrTypeDiscrimination) 3582 GenerateArg(Consumer, OPT_fptrauth_vtable_pointer_type_discrimination); 3583 if (Opts.PointerAuthTypeInfoVTPtrDiscrimination) 3584 GenerateArg(Consumer, OPT_fptrauth_type_info_vtable_pointer_discrimination); 3585 if (Opts.PointerAuthFunctionTypeDiscrimination) 3586 GenerateArg(Consumer, OPT_fptrauth_function_pointer_type_discrimination); 3587 if (Opts.PointerAuthInitFini) 3588 GenerateArg(Consumer, OPT_fptrauth_init_fini); 3589 if (Opts.PointerAuthInitFiniAddressDiscrimination) 3590 GenerateArg(Consumer, OPT_fptrauth_init_fini_address_discrimination); 3591 if (Opts.PointerAuthELFGOT) 3592 GenerateArg(Consumer, OPT_fptrauth_elf_got); 3593 if (Opts.AArch64JumpTableHardening) 3594 GenerateArg(Consumer, OPT_faarch64_jump_table_hardening); 3595 if (Opts.PointerAuthObjcIsa) 3596 GenerateArg(Consumer, OPT_fptrauth_objc_isa); 3597 if (Opts.PointerAuthObjcInterfaceSel) 3598 GenerateArg(Consumer, OPT_fptrauth_objc_interface_sel); 3599 if (Opts.PointerAuthObjcClassROPointers) 3600 GenerateArg(Consumer, OPT_fptrauth_objc_class_ro); 3601 } 3602 3603 static void ParsePointerAuthArgs(LangOptions &Opts, ArgList &Args, 3604 DiagnosticsEngine &Diags) { 3605 Opts.PointerAuthIntrinsics = Args.hasArg(OPT_fptrauth_intrinsics); 3606 Opts.PointerAuthCalls = Args.hasArg(OPT_fptrauth_calls); 3607 Opts.PointerAuthReturns = Args.hasArg(OPT_fptrauth_returns); 3608 Opts.PointerAuthIndirectGotos = Args.hasArg(OPT_fptrauth_indirect_gotos); 3609 Opts.PointerAuthAuthTraps = Args.hasArg(OPT_fptrauth_auth_traps); 3610 Opts.PointerAuthVTPtrAddressDiscrimination = 3611 Args.hasArg(OPT_fptrauth_vtable_pointer_address_discrimination); 3612 Opts.PointerAuthVTPtrTypeDiscrimination = 3613 Args.hasArg(OPT_fptrauth_vtable_pointer_type_discrimination); 3614 Opts.PointerAuthTypeInfoVTPtrDiscrimination = 3615 Args.hasArg(OPT_fptrauth_type_info_vtable_pointer_discrimination); 3616 Opts.PointerAuthFunctionTypeDiscrimination = 3617 Args.hasArg(OPT_fptrauth_function_pointer_type_discrimination); 3618 Opts.PointerAuthInitFini = Args.hasArg(OPT_fptrauth_init_fini); 3619 Opts.PointerAuthInitFiniAddressDiscrimination = 3620 Args.hasArg(OPT_fptrauth_init_fini_address_discrimination); 3621 Opts.PointerAuthELFGOT = Args.hasArg(OPT_fptrauth_elf_got); 3622 Opts.AArch64JumpTableHardening = 3623 Args.hasArg(OPT_faarch64_jump_table_hardening); 3624 3625 Opts.PointerAuthObjcIsa = Args.hasArg(OPT_fptrauth_objc_isa); 3626 Opts.PointerAuthObjcClassROPointers = Args.hasArg(OPT_fptrauth_objc_class_ro); 3627 Opts.PointerAuthObjcInterfaceSel = 3628 Args.hasArg(OPT_fptrauth_objc_interface_sel); 3629 3630 if (Opts.PointerAuthObjcInterfaceSel) 3631 Opts.PointerAuthObjcInterfaceSelKey = 3632 static_cast<unsigned>(PointerAuthSchema::ARM8_3Key::ASDB); 3633 } 3634 3635 /// Check if input file kind and language standard are compatible. 3636 static bool IsInputCompatibleWithStandard(InputKind IK, 3637 const LangStandard &S) { 3638 switch (IK.getLanguage()) { 3639 case Language::Unknown: 3640 case Language::LLVM_IR: 3641 case Language::CIR: 3642 llvm_unreachable("should not parse language flags for this input"); 3643 3644 case Language::C: 3645 case Language::ObjC: 3646 return S.getLanguage() == Language::C; 3647 3648 case Language::OpenCL: 3649 return S.getLanguage() == Language::OpenCL || 3650 S.getLanguage() == Language::OpenCLCXX; 3651 3652 case Language::OpenCLCXX: 3653 return S.getLanguage() == Language::OpenCLCXX; 3654 3655 case Language::CXX: 3656 case Language::ObjCXX: 3657 return S.getLanguage() == Language::CXX; 3658 3659 case Language::CUDA: 3660 // FIXME: What -std= values should be permitted for CUDA compilations? 3661 return S.getLanguage() == Language::CUDA || 3662 S.getLanguage() == Language::CXX; 3663 3664 case Language::HIP: 3665 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3666 3667 case Language::Asm: 3668 // Accept (and ignore) all -std= values. 3669 // FIXME: The -std= value is not ignored; it affects the tokenization 3670 // and preprocessing rules if we're preprocessing this asm input. 3671 return true; 3672 3673 case Language::HLSL: 3674 return S.getLanguage() == Language::HLSL; 3675 } 3676 3677 llvm_unreachable("unexpected input language"); 3678 } 3679 3680 /// Get language name for given input kind. 3681 static StringRef GetInputKindName(InputKind IK) { 3682 switch (IK.getLanguage()) { 3683 case Language::C: 3684 return "C"; 3685 case Language::ObjC: 3686 return "Objective-C"; 3687 case Language::CXX: 3688 return "C++"; 3689 case Language::ObjCXX: 3690 return "Objective-C++"; 3691 case Language::OpenCL: 3692 return "OpenCL"; 3693 case Language::OpenCLCXX: 3694 return "C++ for OpenCL"; 3695 case Language::CUDA: 3696 return "CUDA"; 3697 case Language::HIP: 3698 return "HIP"; 3699 3700 case Language::Asm: 3701 return "Asm"; 3702 case Language::LLVM_IR: 3703 return "LLVM IR"; 3704 case Language::CIR: 3705 return "Clang IR"; 3706 3707 case Language::HLSL: 3708 return "HLSL"; 3709 3710 case Language::Unknown: 3711 break; 3712 } 3713 llvm_unreachable("unknown input language"); 3714 } 3715 3716 static StringRef getExceptionHandlingName(unsigned EHK) { 3717 switch (static_cast<LangOptions::ExceptionHandlingKind>(EHK)) { 3718 case LangOptions::ExceptionHandlingKind::None: 3719 return "none"; 3720 case LangOptions::ExceptionHandlingKind::DwarfCFI: 3721 return "dwarf"; 3722 case LangOptions::ExceptionHandlingKind::SjLj: 3723 return "sjlj"; 3724 case LangOptions::ExceptionHandlingKind::WinEH: 3725 return "seh"; 3726 case LangOptions::ExceptionHandlingKind::Wasm: 3727 return "wasm"; 3728 } 3729 3730 llvm_unreachable("covered switch"); 3731 } 3732 3733 void CompilerInvocationBase::GenerateLangArgs(const LangOptions &Opts, 3734 ArgumentConsumer Consumer, 3735 const llvm::Triple &T, 3736 InputKind IK) { 3737 if (IK.getFormat() == InputKind::Precompiled || 3738 IK.getLanguage() == Language::LLVM_IR || 3739 IK.getLanguage() == Language::CIR) { 3740 if (Opts.ObjCAutoRefCount) 3741 GenerateArg(Consumer, OPT_fobjc_arc); 3742 if (Opts.PICLevel != 0) 3743 GenerateArg(Consumer, OPT_pic_level, Twine(Opts.PICLevel)); 3744 if (Opts.PIE) 3745 GenerateArg(Consumer, OPT_pic_is_pie); 3746 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3747 GenerateArg(Consumer, OPT_fsanitize_EQ, Sanitizer); 3748 if (Opts.ExceptionHandling) { 3749 GenerateArg(Consumer, OPT_exception_model, 3750 getExceptionHandlingName(Opts.ExceptionHandling)); 3751 } 3752 3753 return; 3754 } 3755 3756 OptSpecifier StdOpt; 3757 switch (Opts.LangStd) { 3758 case LangStandard::lang_opencl10: 3759 case LangStandard::lang_opencl11: 3760 case LangStandard::lang_opencl12: 3761 case LangStandard::lang_opencl20: 3762 case LangStandard::lang_opencl30: 3763 case LangStandard::lang_openclcpp10: 3764 case LangStandard::lang_openclcpp2021: 3765 StdOpt = OPT_cl_std_EQ; 3766 break; 3767 default: 3768 StdOpt = OPT_std_EQ; 3769 break; 3770 } 3771 3772 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3773 GenerateArg(Consumer, StdOpt, LangStandard.getName()); 3774 3775 if (Opts.IncludeDefaultHeader) 3776 GenerateArg(Consumer, OPT_finclude_default_header); 3777 if (Opts.DeclareOpenCLBuiltins) 3778 GenerateArg(Consumer, OPT_fdeclare_opencl_builtins); 3779 3780 const LangOptions *LangOpts = &Opts; 3781 3782 #define LANG_OPTION_WITH_MARSHALLING(...) \ 3783 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 3784 #include "clang/Driver/Options.inc" 3785 #undef LANG_OPTION_WITH_MARSHALLING 3786 3787 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3788 3789 if (Opts.ObjC) { 3790 GenerateArg(Consumer, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString()); 3791 3792 if (Opts.GC == LangOptions::GCOnly) 3793 GenerateArg(Consumer, OPT_fobjc_gc_only); 3794 else if (Opts.GC == LangOptions::HybridGC) 3795 GenerateArg(Consumer, OPT_fobjc_gc); 3796 else if (Opts.ObjCAutoRefCount == 1) 3797 GenerateArg(Consumer, OPT_fobjc_arc); 3798 3799 if (Opts.ObjCWeakRuntime) 3800 GenerateArg(Consumer, OPT_fobjc_runtime_has_weak); 3801 3802 if (Opts.ObjCWeak) 3803 GenerateArg(Consumer, OPT_fobjc_weak); 3804 3805 if (Opts.ObjCSubscriptingLegacyRuntime) 3806 GenerateArg(Consumer, OPT_fobjc_subscripting_legacy_runtime); 3807 } 3808 3809 if (Opts.GNUCVersion != 0) { 3810 unsigned Major = Opts.GNUCVersion / 100 / 100; 3811 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3812 unsigned Patch = Opts.GNUCVersion % 100; 3813 GenerateArg(Consumer, OPT_fgnuc_version_EQ, 3814 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch)); 3815 } 3816 3817 if (Opts.IgnoreXCOFFVisibility) 3818 GenerateArg(Consumer, OPT_mignore_xcoff_visibility); 3819 3820 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3821 GenerateArg(Consumer, OPT_ftrapv); 3822 GenerateArg(Consumer, OPT_ftrapv_handler, Opts.OverflowHandler); 3823 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3824 GenerateArg(Consumer, OPT_fwrapv); 3825 } 3826 if (Opts.PointerOverflowDefined) 3827 GenerateArg(Consumer, OPT_fwrapv_pointer); 3828 3829 if (Opts.MSCompatibilityVersion != 0) { 3830 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3831 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3832 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3833 GenerateArg(Consumer, OPT_fms_compatibility_version, 3834 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor)); 3835 } 3836 3837 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) || 3838 T.isOSzOS()) { 3839 if (!Opts.Trigraphs) 3840 GenerateArg(Consumer, OPT_fno_trigraphs); 3841 } else { 3842 if (Opts.Trigraphs) 3843 GenerateArg(Consumer, OPT_ftrigraphs); 3844 } 3845 3846 if (T.isOSzOS() && !Opts.ZOSExt) 3847 GenerateArg(Consumer, OPT_fno_zos_extensions); 3848 else if (Opts.ZOSExt) 3849 GenerateArg(Consumer, OPT_fzos_extensions); 3850 3851 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3852 GenerateArg(Consumer, OPT_fblocks); 3853 3854 if (Opts.ConvergentFunctions) 3855 GenerateArg(Consumer, OPT_fconvergent_functions); 3856 else 3857 GenerateArg(Consumer, OPT_fno_convergent_functions); 3858 3859 if (Opts.NoBuiltin && !Opts.Freestanding) 3860 GenerateArg(Consumer, OPT_fno_builtin); 3861 3862 if (!Opts.NoBuiltin) 3863 for (const auto &Func : Opts.NoBuiltinFuncs) 3864 GenerateArg(Consumer, OPT_fno_builtin_, Func); 3865 3866 if (Opts.LongDoubleSize == 128) 3867 GenerateArg(Consumer, OPT_mlong_double_128); 3868 else if (Opts.LongDoubleSize == 64) 3869 GenerateArg(Consumer, OPT_mlong_double_64); 3870 else if (Opts.LongDoubleSize == 80) 3871 GenerateArg(Consumer, OPT_mlong_double_80); 3872 3873 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3874 3875 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3876 // '-fopenmp-targets='. 3877 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3878 GenerateArg(Consumer, OPT_fopenmp); 3879 3880 if (Opts.OpenMP != 51) 3881 GenerateArg(Consumer, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP)); 3882 3883 if (!Opts.OpenMPUseTLS) 3884 GenerateArg(Consumer, OPT_fnoopenmp_use_tls); 3885 3886 if (Opts.OpenMPIsTargetDevice) 3887 GenerateArg(Consumer, OPT_fopenmp_is_target_device); 3888 3889 if (Opts.OpenMPIRBuilder) 3890 GenerateArg(Consumer, OPT_fopenmp_enable_irbuilder); 3891 } 3892 3893 if (Opts.OpenMPSimd) { 3894 GenerateArg(Consumer, OPT_fopenmp_simd); 3895 3896 if (Opts.OpenMP != 51) 3897 GenerateArg(Consumer, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP)); 3898 } 3899 3900 if (Opts.OpenMPThreadSubscription) 3901 GenerateArg(Consumer, OPT_fopenmp_assume_threads_oversubscription); 3902 3903 if (Opts.OpenMPTeamSubscription) 3904 GenerateArg(Consumer, OPT_fopenmp_assume_teams_oversubscription); 3905 3906 if (Opts.OpenMPTargetDebug != 0) 3907 GenerateArg(Consumer, OPT_fopenmp_target_debug_EQ, 3908 Twine(Opts.OpenMPTargetDebug)); 3909 3910 if (Opts.OpenMPCUDANumSMs != 0) 3911 GenerateArg(Consumer, OPT_fopenmp_cuda_number_of_sm_EQ, 3912 Twine(Opts.OpenMPCUDANumSMs)); 3913 3914 if (Opts.OpenMPCUDABlocksPerSM != 0) 3915 GenerateArg(Consumer, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3916 Twine(Opts.OpenMPCUDABlocksPerSM)); 3917 3918 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3919 GenerateArg(Consumer, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3920 Twine(Opts.OpenMPCUDAReductionBufNum)); 3921 3922 if (!Opts.OMPTargetTriples.empty()) { 3923 std::string Targets; 3924 llvm::raw_string_ostream OS(Targets); 3925 llvm::interleave( 3926 Opts.OMPTargetTriples, OS, 3927 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3928 GenerateArg(Consumer, OPT_offload_targets_EQ, Targets); 3929 } 3930 3931 if (!Opts.OMPHostIRFile.empty()) 3932 GenerateArg(Consumer, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile); 3933 3934 if (Opts.OpenMPCUDAMode) 3935 GenerateArg(Consumer, OPT_fopenmp_cuda_mode); 3936 3937 if (Opts.OpenACC) { 3938 GenerateArg(Consumer, OPT_fopenacc); 3939 if (!Opts.OpenACCMacroOverride.empty()) 3940 GenerateArg(Consumer, OPT_openacc_macro_override, 3941 Opts.OpenACCMacroOverride); 3942 } 3943 3944 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3945 // generated from CodeGenOptions. 3946 3947 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3948 GenerateArg(Consumer, OPT_ffp_contract, "fast"); 3949 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3950 GenerateArg(Consumer, OPT_ffp_contract, "on"); 3951 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3952 GenerateArg(Consumer, OPT_ffp_contract, "off"); 3953 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3954 GenerateArg(Consumer, OPT_ffp_contract, "fast-honor-pragmas"); 3955 3956 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3957 GenerateArg(Consumer, OPT_fsanitize_EQ, Sanitizer); 3958 3959 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3960 for (const std::string &F : Opts.NoSanitizeFiles) 3961 GenerateArg(Consumer, OPT_fsanitize_ignorelist_EQ, F); 3962 3963 switch (Opts.getClangABICompat()) { 3964 case LangOptions::ClangABI::Ver3_8: 3965 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "3.8"); 3966 break; 3967 case LangOptions::ClangABI::Ver4: 3968 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "4.0"); 3969 break; 3970 case LangOptions::ClangABI::Ver6: 3971 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "6.0"); 3972 break; 3973 case LangOptions::ClangABI::Ver7: 3974 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "7.0"); 3975 break; 3976 case LangOptions::ClangABI::Ver9: 3977 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "9.0"); 3978 break; 3979 case LangOptions::ClangABI::Ver11: 3980 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "11.0"); 3981 break; 3982 case LangOptions::ClangABI::Ver12: 3983 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "12.0"); 3984 break; 3985 case LangOptions::ClangABI::Ver14: 3986 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "14.0"); 3987 break; 3988 case LangOptions::ClangABI::Ver15: 3989 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "15.0"); 3990 break; 3991 case LangOptions::ClangABI::Ver17: 3992 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "17.0"); 3993 break; 3994 case LangOptions::ClangABI::Ver18: 3995 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "18.0"); 3996 break; 3997 case LangOptions::ClangABI::Ver19: 3998 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "19.0"); 3999 break; 4000 case LangOptions::ClangABI::Ver20: 4001 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "20.0"); 4002 break; 4003 case LangOptions::ClangABI::Latest: 4004 break; 4005 } 4006 4007 if (Opts.getSignReturnAddressScope() == 4008 LangOptions::SignReturnAddressScopeKind::All) 4009 GenerateArg(Consumer, OPT_msign_return_address_EQ, "all"); 4010 else if (Opts.getSignReturnAddressScope() == 4011 LangOptions::SignReturnAddressScopeKind::NonLeaf) 4012 GenerateArg(Consumer, OPT_msign_return_address_EQ, "non-leaf"); 4013 4014 if (Opts.getSignReturnAddressKey() == 4015 LangOptions::SignReturnAddressKeyKind::BKey) 4016 GenerateArg(Consumer, OPT_msign_return_address_key_EQ, "b_key"); 4017 4018 if (Opts.CXXABI) 4019 GenerateArg(Consumer, OPT_fcxx_abi_EQ, 4020 TargetCXXABI::getSpelling(*Opts.CXXABI)); 4021 4022 if (Opts.RelativeCXXABIVTables) 4023 GenerateArg(Consumer, OPT_fexperimental_relative_cxx_abi_vtables); 4024 else 4025 GenerateArg(Consumer, OPT_fno_experimental_relative_cxx_abi_vtables); 4026 4027 if (Opts.UseTargetPathSeparator) 4028 GenerateArg(Consumer, OPT_ffile_reproducible); 4029 else 4030 GenerateArg(Consumer, OPT_fno_file_reproducible); 4031 4032 for (const auto &MP : Opts.MacroPrefixMap) 4033 GenerateArg(Consumer, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second); 4034 4035 if (!Opts.RandstructSeed.empty()) 4036 GenerateArg(Consumer, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed); 4037 } 4038 4039 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 4040 InputKind IK, const llvm::Triple &T, 4041 std::vector<std::string> &Includes, 4042 DiagnosticsEngine &Diags) { 4043 unsigned NumErrorsBefore = Diags.getNumErrors(); 4044 4045 if (IK.getFormat() == InputKind::Precompiled || 4046 IK.getLanguage() == Language::LLVM_IR || 4047 IK.getLanguage() == Language::CIR) { 4048 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 4049 // PassManager in BackendUtil.cpp. They need to be initialized no matter 4050 // what the input type is. 4051 if (Args.hasArg(OPT_fobjc_arc)) 4052 Opts.ObjCAutoRefCount = 1; 4053 // PICLevel and PIELevel are needed during code generation and this should 4054 // be set regardless of the input type. 4055 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 4056 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 4057 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4058 Diags, Opts.Sanitize); 4059 4060 if (const Arg *A = Args.getLastArg(options::OPT_exception_model)) { 4061 std::optional<LangOptions::ExceptionHandlingKind> EMValue = 4062 llvm::StringSwitch<std::optional<LangOptions::ExceptionHandlingKind>>( 4063 A->getValue()) 4064 .Case("dwarf", LangOptions::ExceptionHandlingKind::DwarfCFI) 4065 .Case("sjlj", LangOptions::ExceptionHandlingKind::SjLj) 4066 .Case("seh", LangOptions::ExceptionHandlingKind::WinEH) 4067 .Case("wasm", LangOptions::ExceptionHandlingKind::Wasm) 4068 .Case("none", LangOptions::ExceptionHandlingKind::None) 4069 .Default(std::nullopt); 4070 if (EMValue) { 4071 Opts.ExceptionHandling = static_cast<unsigned>(*EMValue); 4072 } else { 4073 Diags.Report(diag::err_drv_invalid_value) 4074 << A->getAsString(Args) << A->getValue(); 4075 } 4076 } 4077 4078 return Diags.getNumErrors() == NumErrorsBefore; 4079 } 4080 4081 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 4082 // FIXME: Should we really be parsing this for an Language::Asm input? 4083 4084 // FIXME: Cleanup per-file based stuff. 4085 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 4086 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 4087 LangStd = LangStandard::getLangKind(A->getValue()); 4088 if (LangStd == LangStandard::lang_unspecified) { 4089 Diags.Report(diag::err_drv_invalid_value) 4090 << A->getAsString(Args) << A->getValue(); 4091 // Report supported standards with short description. 4092 for (unsigned KindValue = 0; 4093 KindValue != LangStandard::lang_unspecified; 4094 ++KindValue) { 4095 const LangStandard &Std = LangStandard::getLangStandardForKind( 4096 static_cast<LangStandard::Kind>(KindValue)); 4097 if (IsInputCompatibleWithStandard(IK, Std)) { 4098 auto Diag = Diags.Report(diag::note_drv_use_standard); 4099 Diag << Std.getName() << Std.getDescription(); 4100 unsigned NumAliases = 0; 4101 #define LANGSTANDARD(id, name, lang, desc, features) 4102 #define LANGSTANDARD_ALIAS(id, alias) \ 4103 if (KindValue == LangStandard::lang_##id) ++NumAliases; 4104 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 4105 #include "clang/Basic/LangStandards.def" 4106 Diag << NumAliases; 4107 #define LANGSTANDARD(id, name, lang, desc, features) 4108 #define LANGSTANDARD_ALIAS(id, alias) \ 4109 if (KindValue == LangStandard::lang_##id) Diag << alias; 4110 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 4111 #include "clang/Basic/LangStandards.def" 4112 } 4113 } 4114 } else { 4115 // Valid standard, check to make sure language and standard are 4116 // compatible. 4117 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 4118 if (!IsInputCompatibleWithStandard(IK, Std)) { 4119 Diags.Report(diag::err_drv_argument_not_allowed_with) 4120 << A->getAsString(Args) << GetInputKindName(IK); 4121 } 4122 } 4123 } 4124 4125 // -cl-std only applies for OpenCL language standards. 4126 // Override the -std option in this case. 4127 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 4128 LangStandard::Kind OpenCLLangStd 4129 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 4130 .Cases("cl", "CL", LangStandard::lang_opencl10) 4131 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 4132 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 4133 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 4134 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 4135 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 4136 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 4137 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 4138 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 4139 .Default(LangStandard::lang_unspecified); 4140 4141 if (OpenCLLangStd == LangStandard::lang_unspecified) { 4142 Diags.Report(diag::err_drv_invalid_value) 4143 << A->getAsString(Args) << A->getValue(); 4144 } 4145 else 4146 LangStd = OpenCLLangStd; 4147 } 4148 4149 // These need to be parsed now. They are used to set OpenCL defaults. 4150 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 4151 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 4152 4153 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 4154 4155 // The key paths of codegen options defined in Options.td start with 4156 // "LangOpts->". Let's provide the expected variable name and type. 4157 LangOptions *LangOpts = &Opts; 4158 4159 #define LANG_OPTION_WITH_MARSHALLING(...) \ 4160 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4161 #include "clang/Driver/Options.inc" 4162 #undef LANG_OPTION_WITH_MARSHALLING 4163 4164 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4165 StringRef Name = A->getValue(); 4166 if (Name == "full") { 4167 Opts.CFProtectionBranch = 1; 4168 Opts.CFProtectionReturn = 1; 4169 } else if (Name == "branch") { 4170 Opts.CFProtectionBranch = 1; 4171 } else if (Name == "return") { 4172 Opts.CFProtectionReturn = 1; 4173 } 4174 } 4175 4176 if (Opts.CFProtectionBranch) { 4177 if (const Arg *A = Args.getLastArg(OPT_mcf_branch_label_scheme_EQ)) { 4178 const auto Scheme = 4179 llvm::StringSwitch<CFBranchLabelSchemeKind>(A->getValue()) 4180 #define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \ 4181 .Case(#FlagVal, CFBranchLabelSchemeKind::Kind) 4182 #include "clang/Basic/CFProtectionOptions.def" 4183 .Default(CFBranchLabelSchemeKind::Default); 4184 Opts.setCFBranchLabelScheme(Scheme); 4185 } 4186 } 4187 4188 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 4189 !Args.hasArg(OPT_sycl_std_EQ)) { 4190 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 4191 // provide -sycl-std=, we want to default it to whatever the default SYCL 4192 // version is. I could not find a way to express this with the options 4193 // tablegen because we still want this value to be SYCL_None when the user 4194 // is not in device or host mode. 4195 Opts.setSYCLVersion(LangOptions::SYCL_Default); 4196 } 4197 4198 if (Opts.ObjC) { 4199 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 4200 StringRef value = arg->getValue(); 4201 if (Opts.ObjCRuntime.tryParse(value)) 4202 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 4203 } 4204 4205 if (Args.hasArg(OPT_fobjc_gc_only)) 4206 Opts.setGC(LangOptions::GCOnly); 4207 else if (Args.hasArg(OPT_fobjc_gc)) 4208 Opts.setGC(LangOptions::HybridGC); 4209 else if (Args.hasArg(OPT_fobjc_arc)) { 4210 Opts.ObjCAutoRefCount = 1; 4211 if (!Opts.ObjCRuntime.allowsARC()) 4212 Diags.Report(diag::err_arc_unsupported_on_runtime); 4213 } 4214 4215 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 4216 // whether the feature is actually enabled. This is predominantly 4217 // determined by -fobjc-runtime, but we allow it to be overridden 4218 // from the command line for testing purposes. 4219 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 4220 Opts.ObjCWeakRuntime = 1; 4221 else 4222 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 4223 4224 // ObjCWeak determines whether __weak is actually enabled. 4225 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 4226 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 4227 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 4228 assert(!Opts.ObjCWeak); 4229 } else if (Opts.getGC() != LangOptions::NonGC) { 4230 Diags.Report(diag::err_objc_weak_with_gc); 4231 } else if (!Opts.ObjCWeakRuntime) { 4232 Diags.Report(diag::err_objc_weak_unsupported); 4233 } else { 4234 Opts.ObjCWeak = 1; 4235 } 4236 } else if (Opts.ObjCAutoRefCount) { 4237 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 4238 } 4239 4240 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 4241 Opts.ObjCSubscriptingLegacyRuntime = 4242 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 4243 } 4244 4245 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 4246 // Check that the version has 1 to 3 components and the minor and patch 4247 // versions fit in two decimal digits. 4248 VersionTuple GNUCVer; 4249 bool Invalid = GNUCVer.tryParse(A->getValue()); 4250 unsigned Major = GNUCVer.getMajor(); 4251 unsigned Minor = GNUCVer.getMinor().value_or(0); 4252 unsigned Patch = GNUCVer.getSubminor().value_or(0); 4253 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 4254 Diags.Report(diag::err_drv_invalid_value) 4255 << A->getAsString(Args) << A->getValue(); 4256 } 4257 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 4258 } 4259 4260 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 4261 Opts.IgnoreXCOFFVisibility = 1; 4262 4263 if (Args.hasArg(OPT_ftrapv)) { 4264 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 4265 // Set the handler, if one is specified. 4266 Opts.OverflowHandler = 4267 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 4268 } 4269 else if (Args.hasArg(OPT_fwrapv)) 4270 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 4271 if (Args.hasArg(OPT_fwrapv_pointer)) 4272 Opts.PointerOverflowDefined = true; 4273 4274 Opts.MSCompatibilityVersion = 0; 4275 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 4276 VersionTuple VT; 4277 if (VT.tryParse(A->getValue())) 4278 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 4279 << A->getValue(); 4280 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 4281 VT.getMinor().value_or(0) * 100000 + 4282 VT.getSubminor().value_or(0); 4283 } 4284 4285 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 4286 // is specified, or -std is set to a conforming mode. 4287 // Trigraphs are disabled by default in C++17 and C23 onwards. 4288 // For z/OS, trigraphs are enabled by default (without regard to the above). 4289 Opts.Trigraphs = 4290 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) || 4291 T.isOSzOS(); 4292 Opts.Trigraphs = 4293 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 4294 4295 Opts.ZOSExt = 4296 Args.hasFlag(OPT_fzos_extensions, OPT_fno_zos_extensions, T.isOSzOS()); 4297 4298 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 4299 && Opts.OpenCLVersion == 200); 4300 4301 bool HasConvergentOperations = Opts.isTargetDevice() || Opts.OpenCL || 4302 Opts.HLSL || T.isAMDGPU() || T.isNVPTX(); 4303 Opts.ConvergentFunctions = 4304 Args.hasFlag(OPT_fconvergent_functions, OPT_fno_convergent_functions, 4305 HasConvergentOperations); 4306 4307 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 4308 if (!Opts.NoBuiltin) 4309 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 4310 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 4311 if (A->getOption().matches(options::OPT_mlong_double_64)) 4312 Opts.LongDoubleSize = 64; 4313 else if (A->getOption().matches(options::OPT_mlong_double_80)) 4314 Opts.LongDoubleSize = 80; 4315 else if (A->getOption().matches(options::OPT_mlong_double_128)) 4316 Opts.LongDoubleSize = 128; 4317 else 4318 Opts.LongDoubleSize = 0; 4319 } 4320 if (Opts.FastRelaxedMath || Opts.CLUnsafeMath) 4321 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4322 4323 llvm::sort(Opts.ModuleFeatures); 4324 4325 // -mrtd option 4326 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 4327 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 4328 Diags.Report(diag::err_drv_argument_not_allowed_with) 4329 << A->getSpelling() << "-fdefault-calling-conv"; 4330 else { 4331 switch (T.getArch()) { 4332 case llvm::Triple::x86: 4333 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 4334 break; 4335 case llvm::Triple::m68k: 4336 Opts.setDefaultCallingConv(LangOptions::DCC_RtdCall); 4337 break; 4338 default: 4339 Diags.Report(diag::err_drv_argument_not_allowed_with) 4340 << A->getSpelling() << T.getTriple(); 4341 } 4342 } 4343 } 4344 4345 // Check if -fopenmp is specified and set default version to 5.1. 4346 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 51 : 0; 4347 // Check if -fopenmp-simd is specified. 4348 bool IsSimdSpecified = 4349 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 4350 /*Default=*/false); 4351 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 4352 Opts.OpenMPUseTLS = 4353 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 4354 Opts.OpenMPIsTargetDevice = 4355 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_target_device); 4356 Opts.OpenMPIRBuilder = 4357 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 4358 bool IsTargetSpecified = 4359 Opts.OpenMPIsTargetDevice || Args.hasArg(options::OPT_offload_targets_EQ); 4360 4361 if (Opts.OpenMP || Opts.OpenMPSimd) { 4362 if (int Version = getLastArgIntValue( 4363 Args, OPT_fopenmp_version_EQ, 4364 (IsSimdSpecified || IsTargetSpecified) ? 51 : Opts.OpenMP, Diags)) 4365 Opts.OpenMP = Version; 4366 // Provide diagnostic when a given target is not expected to be an OpenMP 4367 // device or host. 4368 if (!Opts.OpenMPIsTargetDevice) { 4369 switch (T.getArch()) { 4370 default: 4371 break; 4372 // Add unsupported host targets here: 4373 case llvm::Triple::nvptx: 4374 case llvm::Triple::nvptx64: 4375 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 4376 break; 4377 } 4378 } 4379 } 4380 4381 // Set the flag to prevent the implementation from emitting device exception 4382 // handling code for those requiring so. 4383 if ((Opts.OpenMPIsTargetDevice && (T.isNVPTX() || T.isAMDGCN())) || 4384 Opts.OpenCLCPlusPlus) { 4385 4386 Opts.Exceptions = 0; 4387 Opts.CXXExceptions = 0; 4388 } 4389 if (Opts.OpenMPIsTargetDevice && T.isNVPTX()) { 4390 Opts.OpenMPCUDANumSMs = 4391 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 4392 Opts.OpenMPCUDANumSMs, Diags); 4393 Opts.OpenMPCUDABlocksPerSM = 4394 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 4395 Opts.OpenMPCUDABlocksPerSM, Diags); 4396 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 4397 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 4398 Opts.OpenMPCUDAReductionBufNum, Diags); 4399 } 4400 4401 // Set the value of the debugging flag used in the new offloading device RTL. 4402 // Set either by a specific value or to a default if not specified. 4403 if (Opts.OpenMPIsTargetDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 4404 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 4405 Opts.OpenMPTargetDebug = getLastArgIntValue( 4406 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 4407 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 4408 Opts.OpenMPTargetDebug = 1; 4409 } 4410 4411 if (Opts.OpenMPIsTargetDevice) { 4412 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 4413 Opts.OpenMPTeamSubscription = true; 4414 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 4415 Opts.OpenMPThreadSubscription = true; 4416 } 4417 4418 // Get the OpenMP target triples if any. 4419 if (Arg *A = Args.getLastArg(options::OPT_offload_targets_EQ)) { 4420 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 4421 auto getArchPtrSize = [](const llvm::Triple &T) { 4422 if (T.isArch16Bit()) 4423 return Arch16Bit; 4424 if (T.isArch32Bit()) 4425 return Arch32Bit; 4426 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 4427 return Arch64Bit; 4428 }; 4429 4430 for (unsigned i = 0; i < A->getNumValues(); ++i) { 4431 llvm::Triple TT(A->getValue(i)); 4432 4433 if (TT.getArch() == llvm::Triple::UnknownArch || 4434 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 4435 TT.getArch() == llvm::Triple::spirv64 || 4436 TT.getArch() == llvm::Triple::systemz || 4437 TT.getArch() == llvm::Triple::loongarch64 || 4438 TT.getArch() == llvm::Triple::nvptx || 4439 TT.getArch() == llvm::Triple::nvptx64 || TT.isAMDGCN() || 4440 TT.getArch() == llvm::Triple::x86 || 4441 TT.getArch() == llvm::Triple::x86_64)) 4442 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 4443 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 4444 Diags.Report(diag::err_drv_incompatible_omp_arch) 4445 << A->getValue(i) << T.str(); 4446 else 4447 Opts.OMPTargetTriples.push_back(TT); 4448 } 4449 } 4450 4451 // Get OpenMP host file path if any and report if a non existent file is 4452 // found 4453 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 4454 Opts.OMPHostIRFile = A->getValue(); 4455 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 4456 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 4457 << Opts.OMPHostIRFile; 4458 } 4459 4460 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 4461 Opts.OpenMPCUDAMode = Opts.OpenMPIsTargetDevice && 4462 (T.isNVPTX() || T.isAMDGCN()) && 4463 Args.hasArg(options::OPT_fopenmp_cuda_mode); 4464 4465 // OpenACC Configuration. 4466 if (Args.hasArg(options::OPT_fopenacc)) { 4467 Opts.OpenACC = true; 4468 4469 if (Arg *A = Args.getLastArg(options::OPT_openacc_macro_override)) 4470 Opts.OpenACCMacroOverride = A->getValue(); 4471 } 4472 4473 // FIXME: Eliminate this dependency. 4474 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 4475 OptSize = getOptimizationLevelSize(Args); 4476 Opts.Optimize = Opt != 0; 4477 Opts.OptimizeSize = OptSize != 0; 4478 4479 // This is the __NO_INLINE__ define, which just depends on things like the 4480 // optimization level and -fno-inline, not actually whether the backend has 4481 // inlining enabled. 4482 Opts.NoInlineDefine = !Opts.Optimize; 4483 if (Arg *InlineArg = Args.getLastArg( 4484 options::OPT_finline_functions, options::OPT_finline_hint_functions, 4485 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 4486 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 4487 Opts.NoInlineDefine = true; 4488 4489 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 4490 StringRef Val = A->getValue(); 4491 if (Val == "fast") 4492 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4493 else if (Val == "on") 4494 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 4495 else if (Val == "off") 4496 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 4497 else if (Val == "fast-honor-pragmas") 4498 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 4499 else 4500 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 4501 } 4502 4503 if (auto *A = 4504 Args.getLastArg(OPT_fsanitize_undefined_ignore_overflow_pattern_EQ)) { 4505 for (int i = 0, n = A->getNumValues(); i != n; ++i) { 4506 Opts.OverflowPatternExclusionMask |= 4507 llvm::StringSwitch<unsigned>(A->getValue(i)) 4508 .Case("none", LangOptionsBase::None) 4509 .Case("all", LangOptionsBase::All) 4510 .Case("add-unsigned-overflow-test", 4511 LangOptionsBase::AddUnsignedOverflowTest) 4512 .Case("add-signed-overflow-test", 4513 LangOptionsBase::AddSignedOverflowTest) 4514 .Case("negated-unsigned-const", LangOptionsBase::NegUnsignedConst) 4515 .Case("unsigned-post-decr-while", 4516 LangOptionsBase::PostDecrInWhile) 4517 .Default(0); 4518 } 4519 } 4520 4521 // Parse -fsanitize= arguments. 4522 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4523 Diags, Opts.Sanitize); 4524 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 4525 std::vector<std::string> systemIgnorelists = 4526 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 4527 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 4528 systemIgnorelists.begin(), 4529 systemIgnorelists.end()); 4530 4531 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 4532 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4533 4534 StringRef Ver = A->getValue(); 4535 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4536 unsigned Major, Minor = 0; 4537 4538 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4539 // y or y.0 (4 <= y <= current version). 4540 if (!VerParts.first.starts_with("0") && 4541 !VerParts.first.getAsInteger(10, Major) && 3 <= Major && 4542 Major <= MAX_CLANG_ABI_COMPAT_VERSION && 4543 (Major == 3 4544 ? VerParts.second.size() == 1 && 4545 !VerParts.second.getAsInteger(10, Minor) 4546 : VerParts.first.size() == Ver.size() || VerParts.second == "0")) { 4547 // Got a valid version number. 4548 if (Major == 3 && Minor <= 8) 4549 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4550 else if (Major <= 4) 4551 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4552 else if (Major <= 6) 4553 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4554 else if (Major <= 7) 4555 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4556 else if (Major <= 9) 4557 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4558 else if (Major <= 11) 4559 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4560 else if (Major <= 12) 4561 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4562 else if (Major <= 14) 4563 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 4564 else if (Major <= 15) 4565 Opts.setClangABICompat(LangOptions::ClangABI::Ver15); 4566 else if (Major <= 17) 4567 Opts.setClangABICompat(LangOptions::ClangABI::Ver17); 4568 else if (Major <= 18) 4569 Opts.setClangABICompat(LangOptions::ClangABI::Ver18); 4570 else if (Major <= 19) 4571 Opts.setClangABICompat(LangOptions::ClangABI::Ver19); 4572 else if (Major <= 20) 4573 Opts.setClangABICompat(LangOptions::ClangABI::Ver20); 4574 } else if (Ver != "latest") { 4575 Diags.Report(diag::err_drv_invalid_value) 4576 << A->getAsString(Args) << A->getValue(); 4577 } 4578 } 4579 4580 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4581 StringRef SignScope = A->getValue(); 4582 4583 if (SignScope.equals_insensitive("none")) 4584 Opts.setSignReturnAddressScope( 4585 LangOptions::SignReturnAddressScopeKind::None); 4586 else if (SignScope.equals_insensitive("all")) 4587 Opts.setSignReturnAddressScope( 4588 LangOptions::SignReturnAddressScopeKind::All); 4589 else if (SignScope.equals_insensitive("non-leaf")) 4590 Opts.setSignReturnAddressScope( 4591 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4592 else 4593 Diags.Report(diag::err_drv_invalid_value) 4594 << A->getAsString(Args) << SignScope; 4595 4596 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4597 StringRef SignKey = A->getValue(); 4598 if (!SignScope.empty() && !SignKey.empty()) { 4599 if (SignKey == "a_key") 4600 Opts.setSignReturnAddressKey( 4601 LangOptions::SignReturnAddressKeyKind::AKey); 4602 else if (SignKey == "b_key") 4603 Opts.setSignReturnAddressKey( 4604 LangOptions::SignReturnAddressKeyKind::BKey); 4605 else 4606 Diags.Report(diag::err_drv_invalid_value) 4607 << A->getAsString(Args) << SignKey; 4608 } 4609 } 4610 } 4611 4612 // The value can be empty, which indicates the system default should be used. 4613 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4614 if (!CXXABI.empty()) { 4615 if (!TargetCXXABI::isABI(CXXABI)) { 4616 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4617 } else { 4618 auto Kind = TargetCXXABI::getKind(CXXABI); 4619 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4620 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4621 else 4622 Opts.CXXABI = Kind; 4623 } 4624 } 4625 4626 Opts.RelativeCXXABIVTables = 4627 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4628 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4629 TargetCXXABI::usesRelativeVTables(T)); 4630 4631 // RTTI is on by default. 4632 bool HasRTTI = !Args.hasArg(options::OPT_fno_rtti); 4633 Opts.OmitVTableRTTI = 4634 Args.hasFlag(options::OPT_fexperimental_omit_vtable_rtti, 4635 options::OPT_fno_experimental_omit_vtable_rtti, false); 4636 if (Opts.OmitVTableRTTI && HasRTTI) 4637 Diags.Report(diag::err_drv_using_omit_rtti_component_without_no_rtti); 4638 4639 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4640 auto Split = StringRef(A).split('='); 4641 Opts.MacroPrefixMap.insert( 4642 {std::string(Split.first), std::string(Split.second)}); 4643 } 4644 4645 Opts.UseTargetPathSeparator = 4646 !Args.getLastArg(OPT_fno_file_reproducible) && 4647 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4648 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4649 Args.getLastArg(OPT_ffile_reproducible)); 4650 4651 // Error if -mvscale-min is unbounded. 4652 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4653 unsigned VScaleMin; 4654 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4655 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4656 } 4657 if (Arg *A = Args.getLastArg(options::OPT_mvscale_streaming_min_EQ)) { 4658 unsigned VScaleMin; 4659 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4660 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4661 } 4662 4663 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4664 std::ifstream SeedFile(A->getValue(0)); 4665 4666 if (!SeedFile.is_open()) 4667 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4668 << A->getValue(0); 4669 4670 std::getline(SeedFile, Opts.RandstructSeed); 4671 } 4672 4673 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4674 Opts.RandstructSeed = A->getValue(0); 4675 4676 // Validate options for HLSL 4677 if (Opts.HLSL) { 4678 // TODO: Revisit restricting SPIR-V to logical once we've figured out how to 4679 // handle PhysicalStorageBuffer64 memory model 4680 if (T.isDXIL() || T.isSPIRVLogical()) { 4681 enum { ShaderModel, VulkanEnv, ShaderStage }; 4682 enum { OS, Environment }; 4683 4684 int ExpectedOS = T.isSPIRVLogical() ? VulkanEnv : ShaderModel; 4685 4686 if (T.getOSName().empty()) { 4687 Diags.Report(diag::err_drv_hlsl_bad_shader_required_in_target) 4688 << ExpectedOS << OS << T.str(); 4689 } else if (T.getEnvironmentName().empty()) { 4690 Diags.Report(diag::err_drv_hlsl_bad_shader_required_in_target) 4691 << ShaderStage << Environment << T.str(); 4692 } else if (!T.isShaderStageEnvironment()) { 4693 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4694 << ShaderStage << T.getEnvironmentName() << T.str(); 4695 } 4696 4697 if (T.isDXIL()) { 4698 if (!T.isShaderModelOS() || T.getOSVersion() == VersionTuple(0)) { 4699 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4700 << ShaderModel << T.getOSName() << T.str(); 4701 } 4702 // Validate that if fnative-half-type is given, that 4703 // the language standard is at least hlsl2018, and that 4704 // the target shader model is at least 6.2. 4705 if (Args.getLastArg(OPT_fnative_half_type)) { 4706 const LangStandard &Std = 4707 LangStandard::getLangStandardForKind(Opts.LangStd); 4708 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018 && 4709 T.getOSVersion() >= VersionTuple(6, 2))) 4710 Diags.Report(diag::err_drv_hlsl_16bit_types_unsupported) 4711 << "-enable-16bit-types" << true << Std.getName() 4712 << T.getOSVersion().getAsString(); 4713 } 4714 } else if (T.isSPIRVLogical()) { 4715 if (!T.isVulkanOS() || T.getVulkanVersion() == VersionTuple(0)) { 4716 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4717 << VulkanEnv << T.getOSName() << T.str(); 4718 } 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 Diags.Report(diag::err_drv_hlsl_16bit_types_unsupported) 4724 << "-fnative-half-type" << false << Std.getName(); 4725 } 4726 } else { 4727 llvm_unreachable("expected DXIL or SPIR-V target"); 4728 } 4729 } else 4730 Diags.Report(diag::err_drv_hlsl_unsupported_target) << T.str(); 4731 4732 if (Opts.LangStd < LangStandard::lang_hlsl202x) { 4733 const LangStandard &Requested = 4734 LangStandard::getLangStandardForKind(Opts.LangStd); 4735 const LangStandard &Recommended = 4736 LangStandard::getLangStandardForKind(LangStandard::lang_hlsl202x); 4737 Diags.Report(diag::warn_hlsl_langstd_minimal) 4738 << Requested.getName() << Recommended.getName(); 4739 } 4740 } 4741 4742 return Diags.getNumErrors() == NumErrorsBefore; 4743 } 4744 4745 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4746 switch (Action) { 4747 case frontend::ASTDeclList: 4748 case frontend::ASTDump: 4749 case frontend::ASTPrint: 4750 case frontend::ASTView: 4751 case frontend::EmitAssembly: 4752 case frontend::EmitBC: 4753 case frontend::EmitCIR: 4754 case frontend::EmitHTML: 4755 case frontend::EmitLLVM: 4756 case frontend::EmitLLVMOnly: 4757 case frontend::EmitCodeGenOnly: 4758 case frontend::EmitObj: 4759 case frontend::ExtractAPI: 4760 case frontend::FixIt: 4761 case frontend::GenerateModule: 4762 case frontend::GenerateModuleInterface: 4763 case frontend::GenerateReducedModuleInterface: 4764 case frontend::GenerateHeaderUnit: 4765 case frontend::GeneratePCH: 4766 case frontend::GenerateInterfaceStubs: 4767 case frontend::ParseSyntaxOnly: 4768 case frontend::ModuleFileInfo: 4769 case frontend::VerifyPCH: 4770 case frontend::PluginAction: 4771 case frontend::RewriteObjC: 4772 case frontend::RewriteTest: 4773 case frontend::RunAnalysis: 4774 case frontend::TemplightDump: 4775 return false; 4776 4777 case frontend::DumpCompilerOptions: 4778 case frontend::DumpRawTokens: 4779 case frontend::DumpTokens: 4780 case frontend::InitOnly: 4781 case frontend::PrintPreamble: 4782 case frontend::PrintPreprocessedInput: 4783 case frontend::RewriteMacros: 4784 case frontend::RunPreprocessorOnly: 4785 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4786 return true; 4787 } 4788 llvm_unreachable("invalid frontend action"); 4789 } 4790 4791 static bool isCodeGenAction(frontend::ActionKind Action) { 4792 switch (Action) { 4793 case frontend::EmitAssembly: 4794 case frontend::EmitBC: 4795 case frontend::EmitCIR: 4796 case frontend::EmitHTML: 4797 case frontend::EmitLLVM: 4798 case frontend::EmitLLVMOnly: 4799 case frontend::EmitCodeGenOnly: 4800 case frontend::EmitObj: 4801 case frontend::GenerateModule: 4802 case frontend::GenerateModuleInterface: 4803 case frontend::GenerateReducedModuleInterface: 4804 case frontend::GenerateHeaderUnit: 4805 case frontend::GeneratePCH: 4806 case frontend::GenerateInterfaceStubs: 4807 return true; 4808 case frontend::ASTDeclList: 4809 case frontend::ASTDump: 4810 case frontend::ASTPrint: 4811 case frontend::ASTView: 4812 case frontend::ExtractAPI: 4813 case frontend::FixIt: 4814 case frontend::ParseSyntaxOnly: 4815 case frontend::ModuleFileInfo: 4816 case frontend::VerifyPCH: 4817 case frontend::PluginAction: 4818 case frontend::RewriteObjC: 4819 case frontend::RewriteTest: 4820 case frontend::RunAnalysis: 4821 case frontend::TemplightDump: 4822 case frontend::DumpCompilerOptions: 4823 case frontend::DumpRawTokens: 4824 case frontend::DumpTokens: 4825 case frontend::InitOnly: 4826 case frontend::PrintPreamble: 4827 case frontend::PrintPreprocessedInput: 4828 case frontend::RewriteMacros: 4829 case frontend::RunPreprocessorOnly: 4830 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4831 return false; 4832 } 4833 llvm_unreachable("invalid frontend action"); 4834 } 4835 4836 static void GeneratePreprocessorArgs(const PreprocessorOptions &Opts, 4837 ArgumentConsumer Consumer, 4838 const LangOptions &LangOpts, 4839 const FrontendOptions &FrontendOpts, 4840 const CodeGenOptions &CodeGenOpts) { 4841 const PreprocessorOptions *PreprocessorOpts = &Opts; 4842 4843 #define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \ 4844 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4845 #include "clang/Driver/Options.inc" 4846 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4847 4848 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4849 GenerateArg(Consumer, OPT_pch_through_hdrstop_use); 4850 4851 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4852 GenerateArg(Consumer, OPT_error_on_deserialized_pch_decl, D); 4853 4854 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4855 GenerateArg(Consumer, OPT_preamble_bytes_EQ, 4856 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4857 (Opts.PrecompiledPreambleBytes.second ? "1" : "0")); 4858 4859 for (const auto &M : Opts.Macros) { 4860 // Don't generate __CET__ macro definitions. They are implied by the 4861 // -fcf-protection option that is generated elsewhere. 4862 if (M.first == "__CET__=1" && !M.second && 4863 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4864 continue; 4865 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4866 !CodeGenOpts.CFProtectionBranch) 4867 continue; 4868 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4869 CodeGenOpts.CFProtectionBranch) 4870 continue; 4871 4872 GenerateArg(Consumer, M.second ? OPT_U : OPT_D, M.first); 4873 } 4874 4875 for (const auto &I : Opts.Includes) { 4876 // Don't generate OpenCL includes. They are implied by other flags that are 4877 // generated elsewhere. 4878 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4879 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4880 I == "opencl-c.h")) 4881 continue; 4882 // Don't generate HLSL includes. They are implied by other flags that are 4883 // generated elsewhere. 4884 if (LangOpts.HLSL && I == "hlsl.h") 4885 continue; 4886 4887 GenerateArg(Consumer, OPT_include, I); 4888 } 4889 4890 for (const auto &CI : Opts.ChainedIncludes) 4891 GenerateArg(Consumer, OPT_chain_include, CI); 4892 4893 for (const auto &RF : Opts.RemappedFiles) 4894 GenerateArg(Consumer, OPT_remap_file, RF.first + ";" + RF.second); 4895 4896 if (Opts.SourceDateEpoch) 4897 GenerateArg(Consumer, OPT_source_date_epoch, Twine(*Opts.SourceDateEpoch)); 4898 4899 if (Opts.DefineTargetOSMacros) 4900 GenerateArg(Consumer, OPT_fdefine_target_os_macros); 4901 4902 for (const auto &EmbedEntry : Opts.EmbedEntries) 4903 GenerateArg(Consumer, OPT_embed_dir_EQ, EmbedEntry); 4904 4905 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4906 // generated elsewhere. 4907 } 4908 4909 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4910 DiagnosticsEngine &Diags, 4911 frontend::ActionKind Action, 4912 const FrontendOptions &FrontendOpts) { 4913 unsigned NumErrorsBefore = Diags.getNumErrors(); 4914 4915 PreprocessorOptions *PreprocessorOpts = &Opts; 4916 4917 #define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \ 4918 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4919 #include "clang/Driver/Options.inc" 4920 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4921 4922 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4923 Args.hasArg(OPT_pch_through_hdrstop_use); 4924 4925 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4926 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4927 4928 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4929 StringRef Value(A->getValue()); 4930 size_t Comma = Value.find(','); 4931 unsigned Bytes = 0; 4932 unsigned EndOfLine = 0; 4933 4934 if (Comma == StringRef::npos || 4935 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4936 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4937 Diags.Report(diag::err_drv_preamble_format); 4938 else { 4939 Opts.PrecompiledPreambleBytes.first = Bytes; 4940 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4941 } 4942 } 4943 4944 // Add macros from the command line. 4945 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4946 if (A->getOption().matches(OPT_D)) 4947 Opts.addMacroDef(A->getValue()); 4948 else 4949 Opts.addMacroUndef(A->getValue()); 4950 } 4951 4952 // Add the ordered list of -includes. 4953 for (const auto *A : Args.filtered(OPT_include)) 4954 Opts.Includes.emplace_back(A->getValue()); 4955 4956 for (const auto *A : Args.filtered(OPT_chain_include)) 4957 Opts.ChainedIncludes.emplace_back(A->getValue()); 4958 4959 for (const auto *A : Args.filtered(OPT_remap_file)) { 4960 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4961 4962 if (Split.second.empty()) { 4963 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4964 continue; 4965 } 4966 4967 Opts.addRemappedFile(Split.first, Split.second); 4968 } 4969 4970 if (const Arg *A = Args.getLastArg(OPT_source_date_epoch)) { 4971 StringRef Epoch = A->getValue(); 4972 // SOURCE_DATE_EPOCH, if specified, must be a non-negative decimal integer. 4973 // On time64 systems, pick 253402300799 (the UNIX timestamp of 4974 // 9999-12-31T23:59:59Z) as the upper bound. 4975 const uint64_t MaxTimestamp = 4976 std::min<uint64_t>(std::numeric_limits<time_t>::max(), 253402300799); 4977 uint64_t V; 4978 if (Epoch.getAsInteger(10, V) || V > MaxTimestamp) { 4979 Diags.Report(diag::err_fe_invalid_source_date_epoch) 4980 << Epoch << MaxTimestamp; 4981 } else { 4982 Opts.SourceDateEpoch = V; 4983 } 4984 } 4985 4986 for (const auto *A : Args.filtered(OPT_embed_dir_EQ)) { 4987 StringRef Val = A->getValue(); 4988 Opts.EmbedEntries.push_back(std::string(Val)); 4989 } 4990 4991 // Always avoid lexing editor placeholders when we're just running the 4992 // preprocessor as we never want to emit the 4993 // "editor placeholder in source file" error in PP only mode. 4994 if (isStrictlyPreprocessorAction(Action)) 4995 Opts.LexEditorPlaceholders = false; 4996 4997 Opts.DefineTargetOSMacros = 4998 Args.hasFlag(OPT_fdefine_target_os_macros, 4999 OPT_fno_define_target_os_macros, Opts.DefineTargetOSMacros); 5000 5001 return Diags.getNumErrors() == NumErrorsBefore; 5002 } 5003 5004 static void 5005 GeneratePreprocessorOutputArgs(const PreprocessorOutputOptions &Opts, 5006 ArgumentConsumer Consumer, 5007 frontend::ActionKind Action) { 5008 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 5009 5010 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 5011 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 5012 #include "clang/Driver/Options.inc" 5013 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 5014 5015 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 5016 if (Generate_dM) 5017 GenerateArg(Consumer, OPT_dM); 5018 if (!Generate_dM && Opts.ShowMacros) 5019 GenerateArg(Consumer, OPT_dD); 5020 if (Opts.DirectivesOnly) 5021 GenerateArg(Consumer, OPT_fdirectives_only); 5022 } 5023 5024 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 5025 ArgList &Args, DiagnosticsEngine &Diags, 5026 frontend::ActionKind Action) { 5027 unsigned NumErrorsBefore = Diags.getNumErrors(); 5028 5029 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 5030 5031 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 5032 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 5033 #include "clang/Driver/Options.inc" 5034 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 5035 5036 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 5037 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 5038 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 5039 5040 return Diags.getNumErrors() == NumErrorsBefore; 5041 } 5042 5043 static void GenerateTargetArgs(const TargetOptions &Opts, 5044 ArgumentConsumer Consumer) { 5045 const TargetOptions *TargetOpts = &Opts; 5046 #define TARGET_OPTION_WITH_MARSHALLING(...) \ 5047 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 5048 #include "clang/Driver/Options.inc" 5049 #undef TARGET_OPTION_WITH_MARSHALLING 5050 5051 if (!Opts.SDKVersion.empty()) 5052 GenerateArg(Consumer, OPT_target_sdk_version_EQ, 5053 Opts.SDKVersion.getAsString()); 5054 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 5055 GenerateArg(Consumer, OPT_darwin_target_variant_sdk_version_EQ, 5056 Opts.DarwinTargetVariantSDKVersion.getAsString()); 5057 } 5058 5059 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 5060 DiagnosticsEngine &Diags) { 5061 unsigned NumErrorsBefore = Diags.getNumErrors(); 5062 5063 TargetOptions *TargetOpts = &Opts; 5064 5065 #define TARGET_OPTION_WITH_MARSHALLING(...) \ 5066 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 5067 #include "clang/Driver/Options.inc" 5068 #undef TARGET_OPTION_WITH_MARSHALLING 5069 5070 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 5071 llvm::VersionTuple Version; 5072 if (Version.tryParse(A->getValue())) 5073 Diags.Report(diag::err_drv_invalid_value) 5074 << A->getAsString(Args) << A->getValue(); 5075 else 5076 Opts.SDKVersion = Version; 5077 } 5078 if (Arg *A = 5079 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 5080 llvm::VersionTuple Version; 5081 if (Version.tryParse(A->getValue())) 5082 Diags.Report(diag::err_drv_invalid_value) 5083 << A->getAsString(Args) << A->getValue(); 5084 else 5085 Opts.DarwinTargetVariantSDKVersion = Version; 5086 } 5087 5088 return Diags.getNumErrors() == NumErrorsBefore; 5089 } 5090 5091 bool CompilerInvocation::CreateFromArgsImpl( 5092 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 5093 DiagnosticsEngine &Diags, const char *Argv0) { 5094 unsigned NumErrorsBefore = Diags.getNumErrors(); 5095 5096 // Parse the arguments. 5097 const OptTable &Opts = getDriverOptTable(); 5098 llvm::opt::Visibility VisibilityMask(options::CC1Option); 5099 unsigned MissingArgIndex, MissingArgCount; 5100 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 5101 MissingArgCount, VisibilityMask); 5102 LangOptions &LangOpts = Res.getLangOpts(); 5103 5104 // Check for missing argument error. 5105 if (MissingArgCount) 5106 Diags.Report(diag::err_drv_missing_argument) 5107 << Args.getArgString(MissingArgIndex) << MissingArgCount; 5108 5109 // Issue errors on unknown arguments. 5110 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 5111 auto ArgString = A->getAsString(Args); 5112 std::string Nearest; 5113 if (Opts.findNearest(ArgString, Nearest, VisibilityMask) > 1) 5114 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 5115 else 5116 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 5117 << ArgString << Nearest; 5118 } 5119 5120 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 5121 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 5122 ParseAnalyzerArgs(Res.getAnalyzerOpts(), Args, Diags); 5123 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 5124 /*DefaultDiagColor=*/false); 5125 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 5126 // FIXME: We shouldn't have to pass the DashX option around here 5127 InputKind DashX = Res.getFrontendOpts().DashX; 5128 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 5129 llvm::Triple T(Res.getTargetOpts().Triple); 5130 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 5131 Res.getFileSystemOpts().WorkingDir); 5132 if (Res.getFrontendOpts().GenReducedBMI || 5133 Res.getFrontendOpts().ProgramAction == 5134 frontend::GenerateReducedModuleInterface || 5135 Res.getFrontendOpts().ProgramAction == 5136 frontend::GenerateModuleInterface) { 5137 Res.getHeaderSearchOpts().ModulesSkipDiagnosticOptions = true; 5138 Res.getHeaderSearchOpts().ModulesSkipHeaderSearchPaths = true; 5139 } 5140 ParseAPINotesArgs(Res.getAPINotesOpts(), Args, Diags); 5141 5142 ParsePointerAuthArgs(LangOpts, Args, Diags); 5143 5144 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 5145 Diags); 5146 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 5147 LangOpts.ObjCExceptions = 1; 5148 5149 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 5150 if (Warning == "misexpect" && 5151 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 5152 Res.getCodeGenOpts().MisExpect = true; 5153 } 5154 } 5155 5156 if (LangOpts.CUDA) { 5157 // During CUDA device-side compilation, the aux triple is the 5158 // triple used for host compilation. 5159 if (LangOpts.CUDAIsDevice) 5160 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 5161 } 5162 5163 if (LangOpts.OpenACC && !Res.getFrontendOpts().UseClangIRPipeline && 5164 isCodeGenAction(Res.getFrontendOpts().ProgramAction)) 5165 Diags.Report(diag::warn_drv_openacc_without_cir); 5166 5167 // Set the triple of the host for OpenMP device compile. 5168 if (LangOpts.OpenMPIsTargetDevice) 5169 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 5170 5171 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 5172 Res.getFrontendOpts().OutputFile, LangOpts); 5173 5174 // FIXME: Override value name discarding when asan or msan is used because the 5175 // backend passes depend on the name of the alloca in order to print out 5176 // names. 5177 Res.getCodeGenOpts().DiscardValueNames &= 5178 !LangOpts.Sanitize.has(SanitizerKind::Address) && 5179 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 5180 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 5181 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 5182 5183 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 5184 Res.getFrontendOpts().ProgramAction, 5185 Res.getFrontendOpts()); 5186 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 5187 Res.getFrontendOpts().ProgramAction); 5188 5189 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 5190 Res.getFrontendOpts().ProgramAction, 5191 Res.getPreprocessorOutputOpts().ShowLineMarkers); 5192 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 5193 Res.getDependencyOutputOpts().Targets.empty()) 5194 Diags.Report(diag::err_fe_dependency_file_requires_MT); 5195 5196 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 5197 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 5198 !Res.getLangOpts().Sanitize.empty()) { 5199 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 5200 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 5201 } 5202 5203 // Store the command-line for using in the CodeView backend. 5204 if (Res.getCodeGenOpts().CodeViewCommandLine) { 5205 Res.getCodeGenOpts().Argv0 = Argv0; 5206 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 5207 } 5208 5209 // Set PGOOptions. Need to create a temporary VFS to read the profile 5210 // to determine the PGO type. 5211 if (!Res.getCodeGenOpts().ProfileInstrumentUsePath.empty()) { 5212 auto FS = 5213 createVFSFromOverlayFiles(Res.getHeaderSearchOpts().VFSOverlayFiles, 5214 Diags, llvm::vfs::getRealFileSystem()); 5215 setPGOUseInstrumentor(Res.getCodeGenOpts(), 5216 Res.getCodeGenOpts().ProfileInstrumentUsePath, *FS, 5217 Diags); 5218 } 5219 5220 FixupInvocation(Res, Diags, Args, DashX); 5221 5222 return Diags.getNumErrors() == NumErrorsBefore; 5223 } 5224 5225 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 5226 ArrayRef<const char *> CommandLineArgs, 5227 DiagnosticsEngine &Diags, 5228 const char *Argv0) { 5229 CompilerInvocation DummyInvocation; 5230 5231 return RoundTrip( 5232 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 5233 DiagnosticsEngine &Diags, const char *Argv0) { 5234 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 5235 }, 5236 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 5237 StringAllocator SA) { 5238 Args.push_back("-cc1"); 5239 Invocation.generateCC1CommandLine(Args, SA); 5240 }, 5241 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 5242 } 5243 5244 std::string CompilerInvocation::getModuleHash() const { 5245 // FIXME: Consider using SHA1 instead of MD5. 5246 llvm::HashBuilder<llvm::MD5, llvm::endianness::native> HBuilder; 5247 5248 // Note: For QoI reasons, the things we use as a hash here should all be 5249 // dumped via the -module-info flag. 5250 5251 // Start the signature with the compiler version. 5252 HBuilder.add(getClangFullRepositoryVersion()); 5253 5254 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 5255 // and getClangFullRepositoryVersion() doesn't include git revision. 5256 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 5257 5258 // Extend the signature with the language options 5259 // FIXME: Replace with C++20 `using enum LangOptions::CompatibilityKind`. 5260 using CK = LangOptions::CompatibilityKind; 5261 #define LANGOPT(Name, Bits, Default, Compatibility, Description) \ 5262 if constexpr (CK::Compatibility != CK::Benign) \ 5263 HBuilder.add(LangOpts->Name); 5264 #define ENUM_LANGOPT(Name, Type, Bits, Default, Compatibility, Description) \ 5265 if constexpr (CK::Compatibility != CK::Benign) \ 5266 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 5267 #include "clang/Basic/LangOptions.def" 5268 5269 HBuilder.addRange(getLangOpts().ModuleFeatures); 5270 5271 HBuilder.add(getLangOpts().ObjCRuntime); 5272 HBuilder.addRange(getLangOpts().CommentOpts.BlockCommandNames); 5273 5274 // Extend the signature with the target options. 5275 HBuilder.add(getTargetOpts().Triple, getTargetOpts().CPU, 5276 getTargetOpts().TuneCPU, getTargetOpts().ABI); 5277 HBuilder.addRange(getTargetOpts().FeaturesAsWritten); 5278 5279 // Extend the signature with preprocessor options. 5280 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 5281 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 5282 5283 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 5284 for (const auto &Macro : getPreprocessorOpts().Macros) { 5285 // If we're supposed to ignore this macro for the purposes of modules, 5286 // don't put it into the hash. 5287 if (!hsOpts.ModulesIgnoreMacros.empty()) { 5288 // Check whether we're ignoring this macro. 5289 StringRef MacroDef = Macro.first; 5290 if (hsOpts.ModulesIgnoreMacros.count( 5291 llvm::CachedHashString(MacroDef.split('=').first))) 5292 continue; 5293 } 5294 5295 HBuilder.add(Macro); 5296 } 5297 5298 // Extend the signature with the sysroot and other header search options. 5299 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 5300 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 5301 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 5302 hsOpts.ModulesValidateDiagnosticOptions); 5303 HBuilder.add(hsOpts.ResourceDir); 5304 5305 if (hsOpts.ModulesStrictContextHash) { 5306 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 5307 HBuilder.addRange(hsOpts.UserEntries); 5308 HBuilder.addRange(hsOpts.VFSOverlayFiles); 5309 5310 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 5311 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 5312 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 5313 HBuilder.add(diagOpts.get##Name()); 5314 #include "clang/Basic/DiagnosticOptions.def" 5315 #undef DIAGOPT 5316 #undef ENUM_DIAGOPT 5317 } 5318 5319 // Extend the signature with the user build path. 5320 HBuilder.add(hsOpts.ModuleUserBuildPath); 5321 5322 // Extend the signature with the module file extensions. 5323 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 5324 ext->hashExtension(HBuilder); 5325 5326 // Extend the signature with the Swift version for API notes. 5327 const APINotesOptions &APINotesOpts = getAPINotesOpts(); 5328 if (!APINotesOpts.SwiftVersion.empty()) { 5329 HBuilder.add(APINotesOpts.SwiftVersion.getMajor()); 5330 if (auto Minor = APINotesOpts.SwiftVersion.getMinor()) 5331 HBuilder.add(*Minor); 5332 if (auto Subminor = APINotesOpts.SwiftVersion.getSubminor()) 5333 HBuilder.add(*Subminor); 5334 if (auto Build = APINotesOpts.SwiftVersion.getBuild()) 5335 HBuilder.add(*Build); 5336 } 5337 5338 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 5339 // affects the debug info in the PCM. 5340 if (getCodeGenOpts().DebugTypeExtRefs) 5341 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 5342 5343 // Extend the signature with the affecting debug options. 5344 if (getHeaderSearchOpts().ModuleFormat == "obj") { 5345 // FIXME: Replace with C++20 `using enum CodeGenOptions::CompatibilityKind`. 5346 using CK = CodeGenOptions::CompatibilityKind; 5347 #define DEBUGOPT(Name, Bits, Default, Compatibility) \ 5348 if constexpr (CK::Compatibility == CK::Affecting) \ 5349 HBuilder.add(CodeGenOpts->Name); 5350 #define VALUE_DEBUGOPT(Name, Bits, Default, Compatibility) \ 5351 if constexpr (CK::Compatibility == CK::Affecting) \ 5352 HBuilder.add(CodeGenOpts->Name); 5353 #define ENUM_DEBUGOPT(Name, Type, Bits, Default, Compatibility) \ 5354 if constexpr (CK::Compatibility == CK::Affecting) \ 5355 HBuilder.add(static_cast<unsigned>(CodeGenOpts->get##Name())); 5356 #include "clang/Basic/DebugOptions.def" 5357 } 5358 5359 // Extend the signature with the enabled sanitizers, if at least one is 5360 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 5361 SanitizerSet SanHash = getLangOpts().Sanitize; 5362 SanHash.clear(getPPTransparentSanitizers()); 5363 if (!SanHash.empty()) 5364 HBuilder.add(SanHash.Mask); 5365 5366 llvm::MD5::MD5Result Result; 5367 HBuilder.getHasher().final(Result); 5368 uint64_t Hash = Result.high() ^ Result.low(); 5369 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 5370 } 5371 5372 void CompilerInvocationBase::generateCC1CommandLine( 5373 ArgumentConsumer Consumer) const { 5374 llvm::Triple T(getTargetOpts().Triple); 5375 5376 GenerateFileSystemArgs(getFileSystemOpts(), Consumer); 5377 GenerateMigratorArgs(getMigratorOpts(), Consumer); 5378 GenerateAnalyzerArgs(getAnalyzerOpts(), Consumer); 5379 GenerateDiagnosticArgs(getDiagnosticOpts(), Consumer, 5380 /*DefaultDiagColor=*/false); 5381 GenerateFrontendArgs(getFrontendOpts(), Consumer, getLangOpts().IsHeaderFile); 5382 GenerateTargetArgs(getTargetOpts(), Consumer); 5383 GenerateHeaderSearchArgs(getHeaderSearchOpts(), Consumer); 5384 GenerateAPINotesArgs(getAPINotesOpts(), Consumer); 5385 GeneratePointerAuthArgs(getLangOpts(), Consumer); 5386 GenerateLangArgs(getLangOpts(), Consumer, T, getFrontendOpts().DashX); 5387 GenerateCodeGenArgs(getCodeGenOpts(), Consumer, T, 5388 getFrontendOpts().OutputFile, &getLangOpts()); 5389 GeneratePreprocessorArgs(getPreprocessorOpts(), Consumer, getLangOpts(), 5390 getFrontendOpts(), getCodeGenOpts()); 5391 GeneratePreprocessorOutputArgs(getPreprocessorOutputOpts(), Consumer, 5392 getFrontendOpts().ProgramAction); 5393 GenerateDependencyOutputArgs(getDependencyOutputOpts(), Consumer); 5394 } 5395 5396 std::vector<std::string> CompilerInvocationBase::getCC1CommandLine() const { 5397 std::vector<std::string> Args{"-cc1"}; 5398 generateCC1CommandLine( 5399 [&Args](const Twine &Arg) { Args.push_back(Arg.str()); }); 5400 return Args; 5401 } 5402 5403 void CompilerInvocation::resetNonModularOptions() { 5404 getLangOpts().resetNonModularOptions(); 5405 getPreprocessorOpts().resetNonModularOptions(); 5406 getCodeGenOpts().resetNonModularOptions(getHeaderSearchOpts().ModuleFormat); 5407 } 5408 5409 void CompilerInvocation::clearImplicitModuleBuildOptions() { 5410 getLangOpts().ImplicitModules = false; 5411 getHeaderSearchOpts().ImplicitModuleMaps = false; 5412 getHeaderSearchOpts().ModuleCachePath.clear(); 5413 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false; 5414 getHeaderSearchOpts().BuildSessionTimestamp = 0; 5415 // The specific values we canonicalize to for pruning don't affect behaviour, 5416 /// so use the default values so they may be dropped from the command-line. 5417 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60; 5418 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60; 5419 } 5420 5421 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 5422 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 5423 DiagnosticsEngine &Diags) { 5424 return createVFSFromCompilerInvocation(CI, Diags, 5425 llvm::vfs::getRealFileSystem()); 5426 } 5427 5428 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 5429 clang::createVFSFromCompilerInvocation( 5430 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 5431 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 5432 return createVFSFromOverlayFiles(CI.getHeaderSearchOpts().VFSOverlayFiles, 5433 Diags, std::move(BaseFS)); 5434 } 5435 5436 IntrusiveRefCntPtr<llvm::vfs::FileSystem> clang::createVFSFromOverlayFiles( 5437 ArrayRef<std::string> VFSOverlayFiles, DiagnosticsEngine &Diags, 5438 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 5439 if (VFSOverlayFiles.empty()) 5440 return BaseFS; 5441 5442 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 5443 // earlier vfs files are on the bottom 5444 for (const auto &File : VFSOverlayFiles) { 5445 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 5446 Result->getBufferForFile(File); 5447 if (!Buffer) { 5448 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 5449 continue; 5450 } 5451 5452 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 5453 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 5454 /*DiagContext*/ nullptr, Result); 5455 if (!FS) { 5456 Diags.Report(diag::err_invalid_vfs_overlay) << File; 5457 continue; 5458 } 5459 5460 Result = FS; 5461 } 5462 return Result; 5463 } 5464