1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/Diagnostic.h" 16 #include "clang/Basic/DiagnosticDriver.h" 17 #include "clang/Basic/DiagnosticOptions.h" 18 #include "clang/Basic/FileSystemOptions.h" 19 #include "clang/Basic/LLVM.h" 20 #include "clang/Basic/LangOptions.h" 21 #include "clang/Basic/LangStandard.h" 22 #include "clang/Basic/ObjCRuntime.h" 23 #include "clang/Basic/Sanitizers.h" 24 #include "clang/Basic/SourceLocation.h" 25 #include "clang/Basic/TargetOptions.h" 26 #include "clang/Basic/Version.h" 27 #include "clang/Basic/Visibility.h" 28 #include "clang/Basic/XRayInstr.h" 29 #include "clang/Config/config.h" 30 #include "clang/Driver/Driver.h" 31 #include "clang/Driver/DriverDiagnostic.h" 32 #include "clang/Driver/Options.h" 33 #include "clang/Frontend/CommandLineSourceLoc.h" 34 #include "clang/Frontend/DependencyOutputOptions.h" 35 #include "clang/Frontend/FrontendDiagnostic.h" 36 #include "clang/Frontend/FrontendOptions.h" 37 #include "clang/Frontend/FrontendPluginRegistry.h" 38 #include "clang/Frontend/MigratorOptions.h" 39 #include "clang/Frontend/PreprocessorOutputOptions.h" 40 #include "clang/Frontend/TextDiagnosticBuffer.h" 41 #include "clang/Frontend/Utils.h" 42 #include "clang/Lex/HeaderSearchOptions.h" 43 #include "clang/Lex/PreprocessorOptions.h" 44 #include "clang/Sema/CodeCompleteOptions.h" 45 #include "clang/Serialization/ASTBitCodes.h" 46 #include "clang/Serialization/ModuleFileExtension.h" 47 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 48 #include "llvm/ADT/APInt.h" 49 #include "llvm/ADT/ArrayRef.h" 50 #include "llvm/ADT/CachedHashString.h" 51 #include "llvm/ADT/FloatingPointMode.h" 52 #include "llvm/ADT/Hashing.h" 53 #include "llvm/ADT/STLExtras.h" 54 #include "llvm/ADT/SmallString.h" 55 #include "llvm/ADT/SmallVector.h" 56 #include "llvm/ADT/StringRef.h" 57 #include "llvm/ADT/StringSwitch.h" 58 #include "llvm/ADT/Twine.h" 59 #include "llvm/Config/llvm-config.h" 60 #include "llvm/Frontend/Debug/Options.h" 61 #include "llvm/IR/DebugInfoMetadata.h" 62 #include "llvm/Linker/Linker.h" 63 #include "llvm/MC/MCTargetOptions.h" 64 #include "llvm/Option/Arg.h" 65 #include "llvm/Option/ArgList.h" 66 #include "llvm/Option/OptSpecifier.h" 67 #include "llvm/Option/OptTable.h" 68 #include "llvm/Option/Option.h" 69 #include "llvm/ProfileData/InstrProfReader.h" 70 #include "llvm/Remarks/HotnessThresholdParser.h" 71 #include "llvm/Support/CodeGen.h" 72 #include "llvm/Support/Compiler.h" 73 #include "llvm/Support/Error.h" 74 #include "llvm/Support/ErrorHandling.h" 75 #include "llvm/Support/ErrorOr.h" 76 #include "llvm/Support/FileSystem.h" 77 #include "llvm/Support/HashBuilder.h" 78 #include "llvm/Support/MathExtras.h" 79 #include "llvm/Support/MemoryBuffer.h" 80 #include "llvm/Support/Path.h" 81 #include "llvm/Support/Process.h" 82 #include "llvm/Support/Regex.h" 83 #include "llvm/Support/VersionTuple.h" 84 #include "llvm/Support/VirtualFileSystem.h" 85 #include "llvm/Support/raw_ostream.h" 86 #include "llvm/Target/TargetOptions.h" 87 #include "llvm/TargetParser/Host.h" 88 #include "llvm/TargetParser/Triple.h" 89 #include <algorithm> 90 #include <atomic> 91 #include <cassert> 92 #include <cstddef> 93 #include <cstring> 94 #include <ctime> 95 #include <fstream> 96 #include <limits> 97 #include <memory> 98 #include <optional> 99 #include <string> 100 #include <tuple> 101 #include <type_traits> 102 #include <utility> 103 #include <vector> 104 105 using namespace clang; 106 using namespace driver; 107 using namespace options; 108 using namespace llvm::opt; 109 110 //===----------------------------------------------------------------------===// 111 // Helpers. 112 //===----------------------------------------------------------------------===// 113 114 // Parse misexpect tolerance argument value. 115 // Valid option values are integers in the range [0, 100) 116 static Expected<std::optional<uint32_t>> parseToleranceOption(StringRef Arg) { 117 uint32_t Val; 118 if (Arg.getAsInteger(10, Val)) 119 return llvm::createStringError(llvm::inconvertibleErrorCode(), 120 "Not an integer: %s", Arg.data()); 121 return Val; 122 } 123 124 //===----------------------------------------------------------------------===// 125 // Initialization. 126 //===----------------------------------------------------------------------===// 127 128 namespace { 129 template <class T> std::shared_ptr<T> make_shared_copy(const T &X) { 130 return std::make_shared<T>(X); 131 } 132 133 template <class T> 134 llvm::IntrusiveRefCntPtr<T> makeIntrusiveRefCntCopy(const T &X) { 135 return llvm::makeIntrusiveRefCnt<T>(X); 136 } 137 } // namespace 138 139 CompilerInvocationBase::CompilerInvocationBase() 140 : LangOpts(std::make_shared<LangOptions>()), 141 TargetOpts(std::make_shared<TargetOptions>()), 142 DiagnosticOpts(llvm::makeIntrusiveRefCnt<DiagnosticOptions>()), 143 HSOpts(std::make_shared<HeaderSearchOptions>()), 144 PPOpts(std::make_shared<PreprocessorOptions>()), 145 AnalyzerOpts(llvm::makeIntrusiveRefCnt<AnalyzerOptions>()), 146 MigratorOpts(std::make_shared<MigratorOptions>()), 147 APINotesOpts(std::make_shared<APINotesOptions>()), 148 CodeGenOpts(std::make_shared<CodeGenOptions>()), 149 FSOpts(std::make_shared<FileSystemOptions>()), 150 FrontendOpts(std::make_shared<FrontendOptions>()), 151 DependencyOutputOpts(std::make_shared<DependencyOutputOptions>()), 152 PreprocessorOutputOpts(std::make_shared<PreprocessorOutputOptions>()) {} 153 154 CompilerInvocationBase & 155 CompilerInvocationBase::deep_copy_assign(const CompilerInvocationBase &X) { 156 if (this != &X) { 157 LangOpts = make_shared_copy(X.getLangOpts()); 158 TargetOpts = make_shared_copy(X.getTargetOpts()); 159 DiagnosticOpts = makeIntrusiveRefCntCopy(X.getDiagnosticOpts()); 160 HSOpts = make_shared_copy(X.getHeaderSearchOpts()); 161 PPOpts = make_shared_copy(X.getPreprocessorOpts()); 162 AnalyzerOpts = makeIntrusiveRefCntCopy(X.getAnalyzerOpts()); 163 MigratorOpts = make_shared_copy(X.getMigratorOpts()); 164 APINotesOpts = make_shared_copy(X.getAPINotesOpts()); 165 CodeGenOpts = make_shared_copy(X.getCodeGenOpts()); 166 FSOpts = make_shared_copy(X.getFileSystemOpts()); 167 FrontendOpts = make_shared_copy(X.getFrontendOpts()); 168 DependencyOutputOpts = make_shared_copy(X.getDependencyOutputOpts()); 169 PreprocessorOutputOpts = make_shared_copy(X.getPreprocessorOutputOpts()); 170 } 171 return *this; 172 } 173 174 CompilerInvocationBase & 175 CompilerInvocationBase::shallow_copy_assign(const CompilerInvocationBase &X) { 176 if (this != &X) { 177 LangOpts = X.LangOpts; 178 TargetOpts = X.TargetOpts; 179 DiagnosticOpts = X.DiagnosticOpts; 180 HSOpts = X.HSOpts; 181 PPOpts = X.PPOpts; 182 AnalyzerOpts = X.AnalyzerOpts; 183 MigratorOpts = X.MigratorOpts; 184 APINotesOpts = X.APINotesOpts; 185 CodeGenOpts = X.CodeGenOpts; 186 FSOpts = X.FSOpts; 187 FrontendOpts = X.FrontendOpts; 188 DependencyOutputOpts = X.DependencyOutputOpts; 189 PreprocessorOutputOpts = X.PreprocessorOutputOpts; 190 } 191 return *this; 192 } 193 194 namespace { 195 template <typename T> 196 T &ensureOwned(std::shared_ptr<T> &Storage) { 197 if (Storage.use_count() > 1) 198 Storage = std::make_shared<T>(*Storage); 199 return *Storage; 200 } 201 202 template <typename T> 203 T &ensureOwned(llvm::IntrusiveRefCntPtr<T> &Storage) { 204 if (Storage.useCount() > 1) 205 Storage = llvm::makeIntrusiveRefCnt<T>(*Storage); 206 return *Storage; 207 } 208 } // namespace 209 210 LangOptions &CowCompilerInvocation::getMutLangOpts() { 211 return ensureOwned(LangOpts); 212 } 213 214 TargetOptions &CowCompilerInvocation::getMutTargetOpts() { 215 return ensureOwned(TargetOpts); 216 } 217 218 DiagnosticOptions &CowCompilerInvocation::getMutDiagnosticOpts() { 219 return ensureOwned(DiagnosticOpts); 220 } 221 222 HeaderSearchOptions &CowCompilerInvocation::getMutHeaderSearchOpts() { 223 return ensureOwned(HSOpts); 224 } 225 226 PreprocessorOptions &CowCompilerInvocation::getMutPreprocessorOpts() { 227 return ensureOwned(PPOpts); 228 } 229 230 AnalyzerOptions &CowCompilerInvocation::getMutAnalyzerOpts() { 231 return ensureOwned(AnalyzerOpts); 232 } 233 234 MigratorOptions &CowCompilerInvocation::getMutMigratorOpts() { 235 return ensureOwned(MigratorOpts); 236 } 237 238 APINotesOptions &CowCompilerInvocation::getMutAPINotesOpts() { 239 return ensureOwned(APINotesOpts); 240 } 241 242 CodeGenOptions &CowCompilerInvocation::getMutCodeGenOpts() { 243 return ensureOwned(CodeGenOpts); 244 } 245 246 FileSystemOptions &CowCompilerInvocation::getMutFileSystemOpts() { 247 return ensureOwned(FSOpts); 248 } 249 250 FrontendOptions &CowCompilerInvocation::getMutFrontendOpts() { 251 return ensureOwned(FrontendOpts); 252 } 253 254 DependencyOutputOptions &CowCompilerInvocation::getMutDependencyOutputOpts() { 255 return ensureOwned(DependencyOutputOpts); 256 } 257 258 PreprocessorOutputOptions & 259 CowCompilerInvocation::getMutPreprocessorOutputOpts() { 260 return ensureOwned(PreprocessorOutputOpts); 261 } 262 263 //===----------------------------------------------------------------------===// 264 // Normalizers 265 //===----------------------------------------------------------------------===// 266 267 using ArgumentConsumer = CompilerInvocation::ArgumentConsumer; 268 269 #define SIMPLE_ENUM_VALUE_TABLE 270 #include "clang/Driver/Options.inc" 271 #undef SIMPLE_ENUM_VALUE_TABLE 272 273 static std::optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 274 unsigned TableIndex, 275 const ArgList &Args, 276 DiagnosticsEngine &Diags) { 277 if (Args.hasArg(Opt)) 278 return true; 279 return std::nullopt; 280 } 281 282 static std::optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, 283 unsigned, 284 const ArgList &Args, 285 DiagnosticsEngine &) { 286 if (Args.hasArg(Opt)) 287 return false; 288 return std::nullopt; 289 } 290 291 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 292 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 293 /// unnecessary template instantiations and just ignore it with a variadic 294 /// argument. 295 static void denormalizeSimpleFlag(ArgumentConsumer Consumer, 296 const Twine &Spelling, Option::OptionClass, 297 unsigned, /*T*/...) { 298 Consumer(Spelling); 299 } 300 301 template <typename T> static constexpr bool is_uint64_t_convertible() { 302 return !std::is_same_v<T, uint64_t> && llvm::is_integral_or_enum<T>::value; 303 } 304 305 template <typename T, 306 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 307 static auto makeFlagToValueNormalizer(T Value) { 308 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 309 DiagnosticsEngine &) -> std::optional<T> { 310 if (Args.hasArg(Opt)) 311 return Value; 312 return std::nullopt; 313 }; 314 } 315 316 template <typename T, 317 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 318 static auto makeFlagToValueNormalizer(T Value) { 319 return makeFlagToValueNormalizer(uint64_t(Value)); 320 } 321 322 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 323 OptSpecifier OtherOpt) { 324 return [Value, OtherValue, 325 OtherOpt](OptSpecifier Opt, unsigned, const ArgList &Args, 326 DiagnosticsEngine &) -> std::optional<bool> { 327 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 328 return A->getOption().matches(Opt) ? Value : OtherValue; 329 } 330 return std::nullopt; 331 }; 332 } 333 334 static auto makeBooleanOptionDenormalizer(bool Value) { 335 return [Value](ArgumentConsumer Consumer, const Twine &Spelling, 336 Option::OptionClass, unsigned, bool KeyPath) { 337 if (KeyPath == Value) 338 Consumer(Spelling); 339 }; 340 } 341 342 static void denormalizeStringImpl(ArgumentConsumer Consumer, 343 const Twine &Spelling, 344 Option::OptionClass OptClass, unsigned, 345 const Twine &Value) { 346 switch (OptClass) { 347 case Option::SeparateClass: 348 case Option::JoinedOrSeparateClass: 349 case Option::JoinedAndSeparateClass: 350 Consumer(Spelling); 351 Consumer(Value); 352 break; 353 case Option::JoinedClass: 354 case Option::CommaJoinedClass: 355 Consumer(Spelling + Value); 356 break; 357 default: 358 llvm_unreachable("Cannot denormalize an option with option class " 359 "incompatible with string denormalization."); 360 } 361 } 362 363 template <typename T> 364 static void denormalizeString(ArgumentConsumer Consumer, const Twine &Spelling, 365 Option::OptionClass OptClass, unsigned TableIndex, 366 T Value) { 367 denormalizeStringImpl(Consumer, Spelling, OptClass, TableIndex, Twine(Value)); 368 } 369 370 static std::optional<SimpleEnumValue> 371 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 372 for (int I = 0, E = Table.Size; I != E; ++I) 373 if (Name == Table.Table[I].Name) 374 return Table.Table[I]; 375 376 return std::nullopt; 377 } 378 379 static std::optional<SimpleEnumValue> 380 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 381 for (int I = 0, E = Table.Size; I != E; ++I) 382 if (Value == Table.Table[I].Value) 383 return Table.Table[I]; 384 385 return std::nullopt; 386 } 387 388 static std::optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 389 unsigned TableIndex, 390 const ArgList &Args, 391 DiagnosticsEngine &Diags) { 392 assert(TableIndex < SimpleEnumValueTablesSize); 393 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 394 395 auto *Arg = Args.getLastArg(Opt); 396 if (!Arg) 397 return std::nullopt; 398 399 StringRef ArgValue = Arg->getValue(); 400 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 401 return MaybeEnumVal->Value; 402 403 Diags.Report(diag::err_drv_invalid_value) 404 << Arg->getAsString(Args) << ArgValue; 405 return std::nullopt; 406 } 407 408 static void denormalizeSimpleEnumImpl(ArgumentConsumer Consumer, 409 const Twine &Spelling, 410 Option::OptionClass OptClass, 411 unsigned TableIndex, unsigned Value) { 412 assert(TableIndex < SimpleEnumValueTablesSize); 413 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 414 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 415 denormalizeString(Consumer, Spelling, OptClass, TableIndex, 416 MaybeEnumVal->Name); 417 } else { 418 llvm_unreachable("The simple enum value was not correctly defined in " 419 "the tablegen option description"); 420 } 421 } 422 423 template <typename T> 424 static void denormalizeSimpleEnum(ArgumentConsumer Consumer, 425 const Twine &Spelling, 426 Option::OptionClass OptClass, 427 unsigned TableIndex, T Value) { 428 return denormalizeSimpleEnumImpl(Consumer, Spelling, OptClass, TableIndex, 429 static_cast<unsigned>(Value)); 430 } 431 432 static std::optional<std::string> normalizeString(OptSpecifier Opt, 433 int TableIndex, 434 const ArgList &Args, 435 DiagnosticsEngine &Diags) { 436 auto *Arg = Args.getLastArg(Opt); 437 if (!Arg) 438 return std::nullopt; 439 return std::string(Arg->getValue()); 440 } 441 442 template <typename IntTy> 443 static std::optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 444 const ArgList &Args, 445 DiagnosticsEngine &Diags) { 446 auto *Arg = Args.getLastArg(Opt); 447 if (!Arg) 448 return std::nullopt; 449 IntTy Res; 450 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 451 Diags.Report(diag::err_drv_invalid_int_value) 452 << Arg->getAsString(Args) << Arg->getValue(); 453 return std::nullopt; 454 } 455 return Res; 456 } 457 458 static std::optional<std::vector<std::string>> 459 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 460 DiagnosticsEngine &) { 461 return Args.getAllArgValues(Opt); 462 } 463 464 static void denormalizeStringVector(ArgumentConsumer Consumer, 465 const Twine &Spelling, 466 Option::OptionClass OptClass, 467 unsigned TableIndex, 468 const std::vector<std::string> &Values) { 469 switch (OptClass) { 470 case Option::CommaJoinedClass: { 471 std::string CommaJoinedValue; 472 if (!Values.empty()) { 473 CommaJoinedValue.append(Values.front()); 474 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 475 CommaJoinedValue.append(","); 476 CommaJoinedValue.append(Value); 477 } 478 } 479 denormalizeString(Consumer, Spelling, Option::OptionClass::JoinedClass, 480 TableIndex, CommaJoinedValue); 481 break; 482 } 483 case Option::JoinedClass: 484 case Option::SeparateClass: 485 case Option::JoinedOrSeparateClass: 486 for (const std::string &Value : Values) 487 denormalizeString(Consumer, Spelling, OptClass, TableIndex, Value); 488 break; 489 default: 490 llvm_unreachable("Cannot denormalize an option with option class " 491 "incompatible with string vector denormalization."); 492 } 493 } 494 495 static std::optional<std::string> normalizeTriple(OptSpecifier Opt, 496 int TableIndex, 497 const ArgList &Args, 498 DiagnosticsEngine &Diags) { 499 auto *Arg = Args.getLastArg(Opt); 500 if (!Arg) 501 return std::nullopt; 502 return llvm::Triple::normalize(Arg->getValue()); 503 } 504 505 template <typename T, typename U> 506 static T mergeForwardValue(T KeyPath, U Value) { 507 return static_cast<T>(Value); 508 } 509 510 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 511 return KeyPath | Value; 512 } 513 514 template <typename T> static T extractForwardValue(T KeyPath) { 515 return KeyPath; 516 } 517 518 template <typename T, typename U, U Value> 519 static T extractMaskValue(T KeyPath) { 520 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 521 } 522 523 #define PARSE_OPTION_WITH_MARSHALLING( \ 524 ARGS, DIAGS, PREFIX_TYPE, SPELLING, ID, KIND, GROUP, ALIAS, ALIASARGS, \ 525 FLAGS, VISIBILITY, PARAM, HELPTEXT, METAVAR, VALUES, SHOULD_PARSE, \ 526 ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, \ 527 NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX) \ 528 if ((VISIBILITY)&options::CC1Option) { \ 529 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 530 if (IMPLIED_CHECK) \ 531 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 532 if (SHOULD_PARSE) \ 533 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 534 KEYPATH = \ 535 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 536 } 537 538 // Capture the extracted value as a lambda argument to avoid potential issues 539 // with lifetime extension of the reference. 540 #define GENERATE_OPTION_WITH_MARSHALLING( \ 541 CONSUMER, PREFIX_TYPE, SPELLING, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, \ 542 VISIBILITY, PARAM, HELPTEXT, METAVAR, VALUES, SHOULD_PARSE, ALWAYS_EMIT, \ 543 KEYPATH, DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 544 DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX) \ 545 if ((VISIBILITY)&options::CC1Option) { \ 546 [&](const auto &Extracted) { \ 547 if (ALWAYS_EMIT || \ 548 (Extracted != \ 549 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 550 : (DEFAULT_VALUE)))) \ 551 DENORMALIZER(CONSUMER, SPELLING, Option::KIND##Class, TABLE_INDEX, \ 552 Extracted); \ 553 }(EXTRACTOR(KEYPATH)); \ 554 } 555 556 static StringRef GetInputKindName(InputKind IK); 557 558 static bool FixupInvocation(CompilerInvocation &Invocation, 559 DiagnosticsEngine &Diags, const ArgList &Args, 560 InputKind IK) { 561 unsigned NumErrorsBefore = Diags.getNumErrors(); 562 563 LangOptions &LangOpts = Invocation.getLangOpts(); 564 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 565 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 566 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 567 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 568 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 569 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 570 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 571 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 572 if (FrontendOpts.ShowStats) 573 CodeGenOpts.ClearASTBeforeBackend = false; 574 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 575 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 576 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 577 LangOpts.CurrentModule = LangOpts.ModuleName; 578 579 llvm::Triple T(TargetOpts.Triple); 580 llvm::Triple::ArchType Arch = T.getArch(); 581 582 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 583 CodeGenOpts.LargeDataThreshold = TargetOpts.LargeDataThreshold; 584 585 if (LangOpts.getExceptionHandling() != 586 LangOptions::ExceptionHandlingKind::None && 587 T.isWindowsMSVCEnvironment()) 588 Diags.Report(diag::err_fe_invalid_exception_model) 589 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 590 591 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 592 Diags.Report(diag::warn_c_kext); 593 594 if (LangOpts.NewAlignOverride && 595 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 596 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 597 Diags.Report(diag::err_fe_invalid_alignment) 598 << A->getAsString(Args) << A->getValue(); 599 LangOpts.NewAlignOverride = 0; 600 } 601 602 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 603 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 604 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 605 << "-fsycl-is-host"; 606 607 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 608 Diags.Report(diag::err_drv_argument_not_allowed_with) 609 << "-fgnu89-inline" << GetInputKindName(IK); 610 611 if (Args.hasArg(OPT_hlsl_entrypoint) && !LangOpts.HLSL) 612 Diags.Report(diag::err_drv_argument_not_allowed_with) 613 << "-hlsl-entry" << GetInputKindName(IK); 614 615 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 616 Diags.Report(diag::warn_ignored_hip_only_option) 617 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 618 619 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 620 Diags.Report(diag::warn_ignored_hip_only_option) 621 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 622 623 // When these options are used, the compiler is allowed to apply 624 // optimizations that may affect the final result. For example 625 // (x+y)+z is transformed to x+(y+z) but may not give the same 626 // final result; it's not value safe. 627 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF 628 // or NaN. Final result may then differ. An error is issued when the eval 629 // method is set with one of these options. 630 if (Args.hasArg(OPT_ffp_eval_method_EQ)) { 631 if (LangOpts.ApproxFunc) 632 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 0; 633 if (LangOpts.AllowFPReassoc) 634 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 1; 635 if (LangOpts.AllowRecip) 636 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 2; 637 } 638 639 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 640 // This option should be deprecated for CL > 1.0 because 641 // this option was added for compatibility with OpenCL 1.0. 642 if (Args.getLastArg(OPT_cl_strict_aliasing) && 643 (LangOpts.getOpenCLCompatibleVersion() > 100)) 644 Diags.Report(diag::warn_option_invalid_ocl_version) 645 << LangOpts.getOpenCLVersionString() 646 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 647 648 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 649 auto DefaultCC = LangOpts.getDefaultCallingConv(); 650 651 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 652 DefaultCC == LangOptions::DCC_StdCall) && 653 Arch != llvm::Triple::x86; 654 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 655 DefaultCC == LangOptions::DCC_RegCall) && 656 !T.isX86(); 657 emitError |= DefaultCC == LangOptions::DCC_RtdCall && Arch != llvm::Triple::m68k; 658 if (emitError) 659 Diags.Report(diag::err_drv_argument_not_allowed_with) 660 << A->getSpelling() << T.getTriple(); 661 } 662 663 return Diags.getNumErrors() == NumErrorsBefore; 664 } 665 666 //===----------------------------------------------------------------------===// 667 // Deserialization (from args) 668 //===----------------------------------------------------------------------===// 669 670 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 671 DiagnosticsEngine &Diags) { 672 unsigned DefaultOpt = 0; 673 if ((IK.getLanguage() == Language::OpenCL || 674 IK.getLanguage() == Language::OpenCLCXX) && 675 !Args.hasArg(OPT_cl_opt_disable)) 676 DefaultOpt = 2; 677 678 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 679 if (A->getOption().matches(options::OPT_O0)) 680 return 0; 681 682 if (A->getOption().matches(options::OPT_Ofast)) 683 return 3; 684 685 assert(A->getOption().matches(options::OPT_O)); 686 687 StringRef S(A->getValue()); 688 if (S == "s" || S == "z") 689 return 2; 690 691 if (S == "g") 692 return 1; 693 694 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 695 } 696 697 return DefaultOpt; 698 } 699 700 static unsigned getOptimizationLevelSize(ArgList &Args) { 701 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 702 if (A->getOption().matches(options::OPT_O)) { 703 switch (A->getValue()[0]) { 704 default: 705 return 0; 706 case 's': 707 return 1; 708 case 'z': 709 return 2; 710 } 711 } 712 } 713 return 0; 714 } 715 716 static void GenerateArg(ArgumentConsumer Consumer, 717 llvm::opt::OptSpecifier OptSpecifier) { 718 Option Opt = getDriverOptTable().getOption(OptSpecifier); 719 denormalizeSimpleFlag(Consumer, Opt.getPrefixedName(), 720 Option::OptionClass::FlagClass, 0); 721 } 722 723 static void GenerateArg(ArgumentConsumer Consumer, 724 llvm::opt::OptSpecifier OptSpecifier, 725 const Twine &Value) { 726 Option Opt = getDriverOptTable().getOption(OptSpecifier); 727 denormalizeString(Consumer, Opt.getPrefixedName(), Opt.getKind(), 0, Value); 728 } 729 730 // Parse command line arguments into CompilerInvocation. 731 using ParseFn = 732 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 733 DiagnosticsEngine &, const char *)>; 734 735 // Generate command line arguments from CompilerInvocation. 736 using GenerateFn = llvm::function_ref<void( 737 CompilerInvocation &, SmallVectorImpl<const char *> &, 738 CompilerInvocation::StringAllocator)>; 739 740 /// May perform round-trip of command line arguments. By default, the round-trip 741 /// is enabled in assert builds. This can be overwritten at run-time via the 742 /// "-round-trip-args" and "-no-round-trip-args" command line flags, or via the 743 /// ForceRoundTrip parameter. 744 /// 745 /// During round-trip, the command line arguments are parsed into a dummy 746 /// CompilerInvocation, which is used to generate the command line arguments 747 /// again. The real CompilerInvocation is then created by parsing the generated 748 /// arguments, not the original ones. This (in combination with tests covering 749 /// argument behavior) ensures the generated command line is complete (doesn't 750 /// drop/mangle any arguments). 751 /// 752 /// Finally, we check the command line that was used to create the real 753 /// CompilerInvocation instance. By default, we compare it to the command line 754 /// the real CompilerInvocation generates. This checks whether the generator is 755 /// deterministic. If \p CheckAgainstOriginalInvocation is enabled, we instead 756 /// compare it to the original command line to verify the original command-line 757 /// was canonical and can round-trip exactly. 758 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 759 CompilerInvocation &RealInvocation, 760 CompilerInvocation &DummyInvocation, 761 ArrayRef<const char *> CommandLineArgs, 762 DiagnosticsEngine &Diags, const char *Argv0, 763 bool CheckAgainstOriginalInvocation = false, 764 bool ForceRoundTrip = false) { 765 #ifndef NDEBUG 766 bool DoRoundTripDefault = true; 767 #else 768 bool DoRoundTripDefault = false; 769 #endif 770 771 bool DoRoundTrip = DoRoundTripDefault; 772 if (ForceRoundTrip) { 773 DoRoundTrip = true; 774 } else { 775 for (const auto *Arg : CommandLineArgs) { 776 if (Arg == StringRef("-round-trip-args")) 777 DoRoundTrip = true; 778 if (Arg == StringRef("-no-round-trip-args")) 779 DoRoundTrip = false; 780 } 781 } 782 783 // If round-trip was not requested, simply run the parser with the real 784 // invocation diagnostics. 785 if (!DoRoundTrip) 786 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 787 788 // Serializes quoted (and potentially escaped) arguments. 789 auto SerializeArgs = [](ArrayRef<const char *> Args) { 790 std::string Buffer; 791 llvm::raw_string_ostream OS(Buffer); 792 for (const char *Arg : Args) { 793 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 794 OS << ' '; 795 } 796 OS.flush(); 797 return Buffer; 798 }; 799 800 // Setup a dummy DiagnosticsEngine. 801 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 802 DummyDiags.setClient(new TextDiagnosticBuffer()); 803 804 // Run the first parse on the original arguments with the dummy invocation and 805 // diagnostics. 806 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 807 DummyDiags.getNumWarnings() != 0) { 808 // If the first parse did not succeed, it must be user mistake (invalid 809 // command line arguments). We won't be able to generate arguments that 810 // would reproduce the same result. Let's fail again with the real 811 // invocation and diagnostics, so all side-effects of parsing are visible. 812 unsigned NumWarningsBefore = Diags.getNumWarnings(); 813 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 814 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 815 return Success; 816 817 // Parse with original options and diagnostics succeeded even though it 818 // shouldn't have. Something is off. 819 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 820 Diags.Report(diag::note_cc1_round_trip_original) 821 << SerializeArgs(CommandLineArgs); 822 return false; 823 } 824 825 // Setup string allocator. 826 llvm::BumpPtrAllocator Alloc; 827 llvm::StringSaver StringPool(Alloc); 828 auto SA = [&StringPool](const Twine &Arg) { 829 return StringPool.save(Arg).data(); 830 }; 831 832 // Generate arguments from the dummy invocation. If Generate is the 833 // inverse of Parse, the newly generated arguments must have the same 834 // semantics as the original. 835 SmallVector<const char *> GeneratedArgs; 836 Generate(DummyInvocation, GeneratedArgs, SA); 837 838 // Run the second parse, now on the generated arguments, and with the real 839 // invocation and diagnostics. The result is what we will end up using for the 840 // rest of compilation, so if Generate is not inverse of Parse, something down 841 // the line will break. 842 bool Success2 = Parse(RealInvocation, GeneratedArgs, Diags, Argv0); 843 844 // The first parse on original arguments succeeded, but second parse of 845 // generated arguments failed. Something must be wrong with the generator. 846 if (!Success2) { 847 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 848 Diags.Report(diag::note_cc1_round_trip_generated) 849 << 1 << SerializeArgs(GeneratedArgs); 850 return false; 851 } 852 853 SmallVector<const char *> ComparisonArgs; 854 if (CheckAgainstOriginalInvocation) 855 // Compare against original arguments. 856 ComparisonArgs.assign(CommandLineArgs.begin(), CommandLineArgs.end()); 857 else 858 // Generate arguments again, this time from the options we will end up using 859 // for the rest of the compilation. 860 Generate(RealInvocation, ComparisonArgs, SA); 861 862 // Compares two lists of arguments. 863 auto Equal = [](const ArrayRef<const char *> A, 864 const ArrayRef<const char *> B) { 865 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 866 [](const char *AElem, const char *BElem) { 867 return StringRef(AElem) == StringRef(BElem); 868 }); 869 }; 870 871 // If we generated different arguments from what we assume are two 872 // semantically equivalent CompilerInvocations, the Generate function may 873 // be non-deterministic. 874 if (!Equal(GeneratedArgs, ComparisonArgs)) { 875 Diags.Report(diag::err_cc1_round_trip_mismatch); 876 Diags.Report(diag::note_cc1_round_trip_generated) 877 << 1 << SerializeArgs(GeneratedArgs); 878 Diags.Report(diag::note_cc1_round_trip_generated) 879 << 2 << SerializeArgs(ComparisonArgs); 880 return false; 881 } 882 883 Diags.Report(diag::remark_cc1_round_trip_generated) 884 << 1 << SerializeArgs(GeneratedArgs); 885 Diags.Report(diag::remark_cc1_round_trip_generated) 886 << 2 << SerializeArgs(ComparisonArgs); 887 888 return Success2; 889 } 890 891 bool CompilerInvocation::checkCC1RoundTrip(ArrayRef<const char *> Args, 892 DiagnosticsEngine &Diags, 893 const char *Argv0) { 894 CompilerInvocation DummyInvocation1, DummyInvocation2; 895 return RoundTrip( 896 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 897 DiagnosticsEngine &Diags, const char *Argv0) { 898 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 899 }, 900 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 901 StringAllocator SA) { 902 Args.push_back("-cc1"); 903 Invocation.generateCC1CommandLine(Args, SA); 904 }, 905 DummyInvocation1, DummyInvocation2, Args, Diags, Argv0, 906 /*CheckAgainstOriginalInvocation=*/true, /*ForceRoundTrip=*/true); 907 } 908 909 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 910 OptSpecifier GroupWithValue, 911 std::vector<std::string> &Diagnostics) { 912 for (auto *A : Args.filtered(Group)) { 913 if (A->getOption().getKind() == Option::FlagClass) { 914 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 915 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 916 Diagnostics.push_back( 917 std::string(A->getOption().getName().drop_front(1))); 918 } else if (A->getOption().matches(GroupWithValue)) { 919 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 920 // group. Add only the group name to the diagnostics. 921 Diagnostics.push_back( 922 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 923 } else { 924 // Otherwise, add its value (for OPT_W_Joined and similar). 925 Diagnostics.push_back(A->getValue()); 926 } 927 } 928 } 929 930 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 931 // it won't verify the input. 932 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 933 DiagnosticsEngine *Diags); 934 935 static void getAllNoBuiltinFuncValues(ArgList &Args, 936 std::vector<std::string> &Funcs) { 937 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 938 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 939 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 940 } 941 942 static void GenerateAnalyzerArgs(const AnalyzerOptions &Opts, 943 ArgumentConsumer Consumer) { 944 const AnalyzerOptions *AnalyzerOpts = &Opts; 945 946 #define ANALYZER_OPTION_WITH_MARSHALLING(...) \ 947 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 948 #include "clang/Driver/Options.inc" 949 #undef ANALYZER_OPTION_WITH_MARSHALLING 950 951 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 952 switch (Opts.AnalysisConstraintsOpt) { 953 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 954 case NAME##Model: \ 955 GenerateArg(Consumer, OPT_analyzer_constraints, CMDFLAG); \ 956 break; 957 #include "clang/StaticAnalyzer/Core/Analyses.def" 958 default: 959 llvm_unreachable("Tried to generate unknown analysis constraint."); 960 } 961 } 962 963 if (Opts.AnalysisDiagOpt != PD_HTML) { 964 switch (Opts.AnalysisDiagOpt) { 965 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 966 case PD_##NAME: \ 967 GenerateArg(Consumer, OPT_analyzer_output, CMDFLAG); \ 968 break; 969 #include "clang/StaticAnalyzer/Core/Analyses.def" 970 default: 971 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 972 } 973 } 974 975 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 976 switch (Opts.AnalysisPurgeOpt) { 977 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 978 case NAME: \ 979 GenerateArg(Consumer, OPT_analyzer_purge, CMDFLAG); \ 980 break; 981 #include "clang/StaticAnalyzer/Core/Analyses.def" 982 default: 983 llvm_unreachable("Tried to generate unknown analysis purge mode."); 984 } 985 } 986 987 if (Opts.InliningMode != NoRedundancy) { 988 switch (Opts.InliningMode) { 989 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 990 case NAME: \ 991 GenerateArg(Consumer, OPT_analyzer_inlining_mode, CMDFLAG); \ 992 break; 993 #include "clang/StaticAnalyzer/Core/Analyses.def" 994 default: 995 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 996 } 997 } 998 999 for (const auto &CP : Opts.CheckersAndPackages) { 1000 OptSpecifier Opt = 1001 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 1002 GenerateArg(Consumer, Opt, CP.first); 1003 } 1004 1005 AnalyzerOptions ConfigOpts; 1006 parseAnalyzerConfigs(ConfigOpts, nullptr); 1007 1008 // Sort options by key to avoid relying on StringMap iteration order. 1009 SmallVector<std::pair<StringRef, StringRef>, 4> SortedConfigOpts; 1010 for (const auto &C : Opts.Config) 1011 SortedConfigOpts.emplace_back(C.getKey(), C.getValue()); 1012 llvm::sort(SortedConfigOpts, llvm::less_first()); 1013 1014 for (const auto &[Key, Value] : SortedConfigOpts) { 1015 // Don't generate anything that came from parseAnalyzerConfigs. It would be 1016 // redundant and may not be valid on the command line. 1017 auto Entry = ConfigOpts.Config.find(Key); 1018 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == Value) 1019 continue; 1020 1021 GenerateArg(Consumer, OPT_analyzer_config, Key + "=" + Value); 1022 } 1023 1024 // Nothing to generate for FullCompilerInvocation. 1025 } 1026 1027 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 1028 DiagnosticsEngine &Diags) { 1029 unsigned NumErrorsBefore = Diags.getNumErrors(); 1030 1031 AnalyzerOptions *AnalyzerOpts = &Opts; 1032 1033 #define ANALYZER_OPTION_WITH_MARSHALLING(...) \ 1034 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 1035 #include "clang/Driver/Options.inc" 1036 #undef ANALYZER_OPTION_WITH_MARSHALLING 1037 1038 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 1039 StringRef Name = A->getValue(); 1040 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 1041 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 1042 .Case(CMDFLAG, NAME##Model) 1043 #include "clang/StaticAnalyzer/Core/Analyses.def" 1044 .Default(NumConstraints); 1045 if (Value == NumConstraints) { 1046 Diags.Report(diag::err_drv_invalid_value) 1047 << A->getAsString(Args) << Name; 1048 } else { 1049 #ifndef LLVM_WITH_Z3 1050 if (Value == AnalysisConstraints::Z3ConstraintsModel) { 1051 Diags.Report(diag::err_analyzer_not_built_with_z3); 1052 } 1053 #endif // LLVM_WITH_Z3 1054 Opts.AnalysisConstraintsOpt = Value; 1055 } 1056 } 1057 1058 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 1059 StringRef Name = A->getValue(); 1060 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 1061 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 1062 .Case(CMDFLAG, PD_##NAME) 1063 #include "clang/StaticAnalyzer/Core/Analyses.def" 1064 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 1065 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 1066 Diags.Report(diag::err_drv_invalid_value) 1067 << A->getAsString(Args) << Name; 1068 } else { 1069 Opts.AnalysisDiagOpt = Value; 1070 } 1071 } 1072 1073 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 1074 StringRef Name = A->getValue(); 1075 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 1076 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 1077 .Case(CMDFLAG, NAME) 1078 #include "clang/StaticAnalyzer/Core/Analyses.def" 1079 .Default(NumPurgeModes); 1080 if (Value == NumPurgeModes) { 1081 Diags.Report(diag::err_drv_invalid_value) 1082 << A->getAsString(Args) << Name; 1083 } else { 1084 Opts.AnalysisPurgeOpt = Value; 1085 } 1086 } 1087 1088 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 1089 StringRef Name = A->getValue(); 1090 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 1091 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 1092 .Case(CMDFLAG, NAME) 1093 #include "clang/StaticAnalyzer/Core/Analyses.def" 1094 .Default(NumInliningModes); 1095 if (Value == NumInliningModes) { 1096 Diags.Report(diag::err_drv_invalid_value) 1097 << A->getAsString(Args) << Name; 1098 } else { 1099 Opts.InliningMode = Value; 1100 } 1101 } 1102 1103 Opts.CheckersAndPackages.clear(); 1104 for (const Arg *A : 1105 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 1106 A->claim(); 1107 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 1108 // We can have a list of comma separated checker names, e.g: 1109 // '-analyzer-checker=cocoa,unix' 1110 StringRef CheckerAndPackageList = A->getValue(); 1111 SmallVector<StringRef, 16> CheckersAndPackages; 1112 CheckerAndPackageList.split(CheckersAndPackages, ","); 1113 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 1114 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 1115 IsEnabled); 1116 } 1117 1118 // Go through the analyzer configuration options. 1119 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 1120 1121 // We can have a list of comma separated config names, e.g: 1122 // '-analyzer-config key1=val1,key2=val2' 1123 StringRef configList = A->getValue(); 1124 SmallVector<StringRef, 4> configVals; 1125 configList.split(configVals, ","); 1126 for (const auto &configVal : configVals) { 1127 StringRef key, val; 1128 std::tie(key, val) = configVal.split("="); 1129 if (val.empty()) { 1130 Diags.Report(SourceLocation(), 1131 diag::err_analyzer_config_no_value) << configVal; 1132 break; 1133 } 1134 if (val.contains('=')) { 1135 Diags.Report(SourceLocation(), 1136 diag::err_analyzer_config_multiple_values) 1137 << configVal; 1138 break; 1139 } 1140 1141 // TODO: Check checker options too, possibly in CheckerRegistry. 1142 // Leave unknown non-checker configs unclaimed. 1143 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1144 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1145 Diags.Report(diag::err_analyzer_config_unknown) << key; 1146 continue; 1147 } 1148 1149 A->claim(); 1150 Opts.Config[key] = std::string(val); 1151 } 1152 } 1153 1154 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1155 parseAnalyzerConfigs(Opts, &Diags); 1156 else 1157 parseAnalyzerConfigs(Opts, nullptr); 1158 1159 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1160 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1161 if (i != 0) 1162 os << " "; 1163 os << Args.getArgString(i); 1164 } 1165 os.flush(); 1166 1167 return Diags.getNumErrors() == NumErrorsBefore; 1168 } 1169 1170 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1171 StringRef OptionName, StringRef DefaultVal) { 1172 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1173 } 1174 1175 static void initOption(AnalyzerOptions::ConfigTable &Config, 1176 DiagnosticsEngine *Diags, 1177 StringRef &OptionField, StringRef Name, 1178 StringRef DefaultVal) { 1179 // String options may be known to invalid (e.g. if the expected string is a 1180 // file name, but the file does not exist), those will have to be checked in 1181 // parseConfigs. 1182 OptionField = getStringOption(Config, Name, DefaultVal); 1183 } 1184 1185 static void initOption(AnalyzerOptions::ConfigTable &Config, 1186 DiagnosticsEngine *Diags, 1187 bool &OptionField, StringRef Name, bool DefaultVal) { 1188 auto PossiblyInvalidVal = 1189 llvm::StringSwitch<std::optional<bool>>( 1190 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1191 .Case("true", true) 1192 .Case("false", false) 1193 .Default(std::nullopt); 1194 1195 if (!PossiblyInvalidVal) { 1196 if (Diags) 1197 Diags->Report(diag::err_analyzer_config_invalid_input) 1198 << Name << "a boolean"; 1199 else 1200 OptionField = DefaultVal; 1201 } else 1202 OptionField = *PossiblyInvalidVal; 1203 } 1204 1205 static void initOption(AnalyzerOptions::ConfigTable &Config, 1206 DiagnosticsEngine *Diags, 1207 unsigned &OptionField, StringRef Name, 1208 unsigned DefaultVal) { 1209 1210 OptionField = DefaultVal; 1211 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1212 .getAsInteger(0, OptionField); 1213 if (Diags && HasFailed) 1214 Diags->Report(diag::err_analyzer_config_invalid_input) 1215 << Name << "an unsigned"; 1216 } 1217 1218 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1219 DiagnosticsEngine *Diags) { 1220 // TODO: There's no need to store the entire configtable, it'd be plenty 1221 // enough to store checker options. 1222 1223 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1224 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1225 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...) 1226 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1227 1228 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep"); 1229 const bool InShallowMode = AnOpts.UserMode == "shallow"; 1230 1231 #define ANALYZER_OPTION(...) 1232 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1233 SHALLOW_VAL, DEEP_VAL) \ 1234 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \ 1235 InShallowMode ? SHALLOW_VAL : DEEP_VAL); 1236 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1237 1238 // At this point, AnalyzerOptions is configured. Let's validate some options. 1239 1240 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1241 // The current approach only validates the registered checkers which does not 1242 // contain the runtime enabled checkers and optimally we would validate both. 1243 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1244 std::vector<StringRef> Checkers = 1245 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1246 std::vector<StringRef> Packages = 1247 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1248 1249 SmallVector<StringRef, 16> CheckersAndPackages; 1250 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1251 1252 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1253 if (Diags) { 1254 bool IsChecker = CheckerOrPackage.contains('.'); 1255 bool IsValidName = IsChecker 1256 ? llvm::is_contained(Checkers, CheckerOrPackage) 1257 : llvm::is_contained(Packages, CheckerOrPackage); 1258 1259 if (!IsValidName) 1260 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1261 << CheckerOrPackage; 1262 } 1263 1264 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1265 } 1266 } 1267 1268 if (!Diags) 1269 return; 1270 1271 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1272 Diags->Report(diag::err_analyzer_config_invalid_input) 1273 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1274 1275 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1276 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1277 << "a filename"; 1278 1279 if (!AnOpts.ModelPath.empty() && 1280 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1281 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1282 << "a filename"; 1283 } 1284 1285 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1286 static void 1287 GenerateOptimizationRemark(ArgumentConsumer Consumer, OptSpecifier OptEQ, 1288 StringRef Name, 1289 const CodeGenOptions::OptRemark &Remark) { 1290 if (Remark.hasValidPattern()) { 1291 GenerateArg(Consumer, OptEQ, Remark.Pattern); 1292 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1293 GenerateArg(Consumer, OPT_R_Joined, Name); 1294 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1295 GenerateArg(Consumer, OPT_R_Joined, StringRef("no-") + Name); 1296 } 1297 } 1298 1299 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1300 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1301 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1302 static CodeGenOptions::OptRemark 1303 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1304 OptSpecifier OptEQ, StringRef Name) { 1305 CodeGenOptions::OptRemark Result; 1306 1307 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1308 StringRef Pattern) { 1309 Result.Pattern = Pattern.str(); 1310 1311 std::string RegexError; 1312 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1313 if (!Result.Regex->isValid(RegexError)) { 1314 Diags.Report(diag::err_drv_optimization_remark_pattern) 1315 << RegexError << A->getAsString(Args); 1316 return false; 1317 } 1318 1319 return true; 1320 }; 1321 1322 for (Arg *A : Args) { 1323 if (A->getOption().matches(OPT_R_Joined)) { 1324 StringRef Value = A->getValue(); 1325 1326 if (Value == Name) 1327 Result.Kind = CodeGenOptions::RK_Enabled; 1328 else if (Value == "everything") 1329 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1330 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1331 Result.Kind = CodeGenOptions::RK_Disabled; 1332 else if (Value == "no-everything") 1333 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1334 else 1335 continue; 1336 1337 if (Result.Kind == CodeGenOptions::RK_Disabled || 1338 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1339 Result.Pattern = ""; 1340 Result.Regex = nullptr; 1341 } else { 1342 InitializeResultPattern(A, ".*"); 1343 } 1344 } else if (A->getOption().matches(OptEQ)) { 1345 Result.Kind = CodeGenOptions::RK_WithPattern; 1346 if (!InitializeResultPattern(A, A->getValue())) 1347 return CodeGenOptions::OptRemark(); 1348 } 1349 } 1350 1351 return Result; 1352 } 1353 1354 static bool parseDiagnosticLevelMask(StringRef FlagName, 1355 const std::vector<std::string> &Levels, 1356 DiagnosticsEngine &Diags, 1357 DiagnosticLevelMask &M) { 1358 bool Success = true; 1359 for (const auto &Level : Levels) { 1360 DiagnosticLevelMask const PM = 1361 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1362 .Case("note", DiagnosticLevelMask::Note) 1363 .Case("remark", DiagnosticLevelMask::Remark) 1364 .Case("warning", DiagnosticLevelMask::Warning) 1365 .Case("error", DiagnosticLevelMask::Error) 1366 .Default(DiagnosticLevelMask::None); 1367 if (PM == DiagnosticLevelMask::None) { 1368 Success = false; 1369 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1370 } 1371 M = M | PM; 1372 } 1373 return Success; 1374 } 1375 1376 static void parseSanitizerKinds(StringRef FlagName, 1377 const std::vector<std::string> &Sanitizers, 1378 DiagnosticsEngine &Diags, SanitizerSet &S) { 1379 for (const auto &Sanitizer : Sanitizers) { 1380 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1381 if (K == SanitizerMask()) 1382 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1383 else 1384 S.set(K, true); 1385 } 1386 } 1387 1388 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1389 SmallVector<StringRef, 4> Values; 1390 serializeSanitizerSet(S, Values); 1391 return Values; 1392 } 1393 1394 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1395 ArgList &Args, DiagnosticsEngine &D, 1396 XRayInstrSet &S) { 1397 llvm::SmallVector<StringRef, 2> BundleParts; 1398 llvm::SplitString(Bundle, BundleParts, ","); 1399 for (const auto &B : BundleParts) { 1400 auto Mask = parseXRayInstrValue(B); 1401 if (Mask == XRayInstrKind::None) 1402 if (B != "none") 1403 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1404 else 1405 S.Mask = Mask; 1406 else if (Mask == XRayInstrKind::All) 1407 S.Mask = Mask; 1408 else 1409 S.set(Mask, true); 1410 } 1411 } 1412 1413 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1414 llvm::SmallVector<StringRef, 2> BundleParts; 1415 serializeXRayInstrValue(S, BundleParts); 1416 std::string Buffer; 1417 llvm::raw_string_ostream OS(Buffer); 1418 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1419 return Buffer; 1420 } 1421 1422 // Set the profile kind using fprofile-instrument-use-path. 1423 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1424 const Twine &ProfileName, 1425 llvm::vfs::FileSystem &FS, 1426 DiagnosticsEngine &Diags) { 1427 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName, FS); 1428 if (auto E = ReaderOrErr.takeError()) { 1429 unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, 1430 "Error in reading profile %0: %1"); 1431 llvm::handleAllErrors(std::move(E), [&](const llvm::ErrorInfoBase &EI) { 1432 Diags.Report(DiagID) << ProfileName.str() << EI.message(); 1433 }); 1434 return; 1435 } 1436 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1437 std::move(ReaderOrErr.get()); 1438 // Currently memprof profiles are only added at the IR level. Mark the profile 1439 // type as IR in that case as well and the subsequent matching needs to detect 1440 // which is available (might be one or both). 1441 if (PGOReader->isIRLevelProfile() || PGOReader->hasMemoryProfile()) { 1442 if (PGOReader->hasCSIRLevelProfile()) 1443 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1444 else 1445 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1446 } else 1447 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1448 } 1449 1450 void CompilerInvocationBase::GenerateCodeGenArgs(const CodeGenOptions &Opts, 1451 ArgumentConsumer Consumer, 1452 const llvm::Triple &T, 1453 const std::string &OutputFile, 1454 const LangOptions *LangOpts) { 1455 const CodeGenOptions &CodeGenOpts = Opts; 1456 1457 if (Opts.OptimizationLevel == 0) 1458 GenerateArg(Consumer, OPT_O0); 1459 else 1460 GenerateArg(Consumer, OPT_O, Twine(Opts.OptimizationLevel)); 1461 1462 #define CODEGEN_OPTION_WITH_MARSHALLING(...) \ 1463 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 1464 #include "clang/Driver/Options.inc" 1465 #undef CODEGEN_OPTION_WITH_MARSHALLING 1466 1467 if (Opts.OptimizationLevel > 0) { 1468 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1469 GenerateArg(Consumer, OPT_finline_functions); 1470 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1471 GenerateArg(Consumer, OPT_finline_hint_functions); 1472 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1473 GenerateArg(Consumer, OPT_fno_inline); 1474 } 1475 1476 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1477 GenerateArg(Consumer, OPT_fdirect_access_external_data); 1478 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1479 GenerateArg(Consumer, OPT_fno_direct_access_external_data); 1480 1481 std::optional<StringRef> DebugInfoVal; 1482 switch (Opts.DebugInfo) { 1483 case llvm::codegenoptions::DebugLineTablesOnly: 1484 DebugInfoVal = "line-tables-only"; 1485 break; 1486 case llvm::codegenoptions::DebugDirectivesOnly: 1487 DebugInfoVal = "line-directives-only"; 1488 break; 1489 case llvm::codegenoptions::DebugInfoConstructor: 1490 DebugInfoVal = "constructor"; 1491 break; 1492 case llvm::codegenoptions::LimitedDebugInfo: 1493 DebugInfoVal = "limited"; 1494 break; 1495 case llvm::codegenoptions::FullDebugInfo: 1496 DebugInfoVal = "standalone"; 1497 break; 1498 case llvm::codegenoptions::UnusedTypeInfo: 1499 DebugInfoVal = "unused-types"; 1500 break; 1501 case llvm::codegenoptions::NoDebugInfo: // default value 1502 DebugInfoVal = std::nullopt; 1503 break; 1504 case llvm::codegenoptions::LocTrackingOnly: // implied value 1505 DebugInfoVal = std::nullopt; 1506 break; 1507 } 1508 if (DebugInfoVal) 1509 GenerateArg(Consumer, OPT_debug_info_kind_EQ, *DebugInfoVal); 1510 1511 for (const auto &Prefix : Opts.DebugPrefixMap) 1512 GenerateArg(Consumer, OPT_fdebug_prefix_map_EQ, 1513 Prefix.first + "=" + Prefix.second); 1514 1515 for (const auto &Prefix : Opts.CoveragePrefixMap) 1516 GenerateArg(Consumer, OPT_fcoverage_prefix_map_EQ, 1517 Prefix.first + "=" + Prefix.second); 1518 1519 if (Opts.NewStructPathTBAA) 1520 GenerateArg(Consumer, OPT_new_struct_path_tbaa); 1521 1522 if (Opts.OptimizeSize == 1) 1523 GenerateArg(Consumer, OPT_O, "s"); 1524 else if (Opts.OptimizeSize == 2) 1525 GenerateArg(Consumer, OPT_O, "z"); 1526 1527 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1528 // -ffreestanding. We'll consider that when generating them. 1529 1530 // NoBuiltinFuncs are generated by LangOptions. 1531 1532 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1533 GenerateArg(Consumer, OPT_funroll_loops); 1534 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1535 GenerateArg(Consumer, OPT_fno_unroll_loops); 1536 1537 if (!Opts.BinutilsVersion.empty()) 1538 GenerateArg(Consumer, OPT_fbinutils_version_EQ, Opts.BinutilsVersion); 1539 1540 if (Opts.DebugNameTable == 1541 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1542 GenerateArg(Consumer, OPT_ggnu_pubnames); 1543 else if (Opts.DebugNameTable == 1544 static_cast<unsigned>( 1545 llvm::DICompileUnit::DebugNameTableKind::Default)) 1546 GenerateArg(Consumer, OPT_gpubnames); 1547 1548 auto TNK = Opts.getDebugSimpleTemplateNames(); 1549 if (TNK != llvm::codegenoptions::DebugTemplateNamesKind::Full) { 1550 if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Simple) 1551 GenerateArg(Consumer, OPT_gsimple_template_names_EQ, "simple"); 1552 else if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Mangled) 1553 GenerateArg(Consumer, OPT_gsimple_template_names_EQ, "mangled"); 1554 } 1555 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1556 // it or PGOUseInstrumentor. 1557 1558 if (Opts.TimePasses) { 1559 if (Opts.TimePassesPerRun) 1560 GenerateArg(Consumer, OPT_ftime_report_EQ, "per-pass-run"); 1561 else 1562 GenerateArg(Consumer, OPT_ftime_report); 1563 } 1564 1565 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1566 GenerateArg(Consumer, OPT_flto_EQ, "full"); 1567 1568 if (Opts.PrepareForThinLTO) 1569 GenerateArg(Consumer, OPT_flto_EQ, "thin"); 1570 1571 if (!Opts.ThinLTOIndexFile.empty()) 1572 GenerateArg(Consumer, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile); 1573 1574 if (Opts.SaveTempsFilePrefix == OutputFile) 1575 GenerateArg(Consumer, OPT_save_temps_EQ, "obj"); 1576 1577 StringRef MemProfileBasename("memprof.profraw"); 1578 if (!Opts.MemoryProfileOutput.empty()) { 1579 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1580 GenerateArg(Consumer, OPT_fmemory_profile); 1581 } else { 1582 size_t ArgLength = 1583 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1584 GenerateArg(Consumer, OPT_fmemory_profile_EQ, 1585 Opts.MemoryProfileOutput.substr(0, ArgLength)); 1586 } 1587 } 1588 1589 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1590 GenerateArg(Consumer, OPT_coverage_version_EQ, 1591 StringRef(Opts.CoverageVersion, 4)); 1592 1593 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1594 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1595 // won't be generated.) 1596 1597 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1598 std::string InstrBundle = 1599 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1600 if (!InstrBundle.empty()) 1601 GenerateArg(Consumer, OPT_fxray_instrumentation_bundle, InstrBundle); 1602 } 1603 1604 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1605 GenerateArg(Consumer, OPT_fcf_protection_EQ, "full"); 1606 else if (Opts.CFProtectionReturn) 1607 GenerateArg(Consumer, OPT_fcf_protection_EQ, "return"); 1608 else if (Opts.CFProtectionBranch) 1609 GenerateArg(Consumer, OPT_fcf_protection_EQ, "branch"); 1610 1611 if (Opts.FunctionReturnThunks) 1612 GenerateArg(Consumer, OPT_mfunction_return_EQ, "thunk-extern"); 1613 1614 for (const auto &F : Opts.LinkBitcodeFiles) { 1615 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1616 F.PropagateAttrs && F.Internalize; 1617 GenerateArg(Consumer, 1618 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1619 F.Filename); 1620 } 1621 1622 if (Opts.EmulatedTLS) 1623 GenerateArg(Consumer, OPT_femulated_tls); 1624 1625 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1626 GenerateArg(Consumer, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str()); 1627 1628 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1629 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1630 GenerateArg(Consumer, OPT_fdenormal_fp_math_f32_EQ, 1631 Opts.FP32DenormalMode.str()); 1632 1633 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1634 OptSpecifier Opt = 1635 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1636 GenerateArg(Consumer, Opt); 1637 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1638 OptSpecifier Opt = 1639 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1640 GenerateArg(Consumer, Opt); 1641 } 1642 1643 if (Opts.EnableAIXExtendedAltivecABI) 1644 GenerateArg(Consumer, OPT_mabi_EQ_vec_extabi); 1645 1646 if (Opts.XCOFFReadOnlyPointers) 1647 GenerateArg(Consumer, OPT_mxcoff_roptr); 1648 1649 if (!Opts.OptRecordPasses.empty()) 1650 GenerateArg(Consumer, OPT_opt_record_passes, Opts.OptRecordPasses); 1651 1652 if (!Opts.OptRecordFormat.empty()) 1653 GenerateArg(Consumer, OPT_opt_record_format, Opts.OptRecordFormat); 1654 1655 GenerateOptimizationRemark(Consumer, OPT_Rpass_EQ, "pass", 1656 Opts.OptimizationRemark); 1657 1658 GenerateOptimizationRemark(Consumer, OPT_Rpass_missed_EQ, "pass-missed", 1659 Opts.OptimizationRemarkMissed); 1660 1661 GenerateOptimizationRemark(Consumer, OPT_Rpass_analysis_EQ, "pass-analysis", 1662 Opts.OptimizationRemarkAnalysis); 1663 1664 GenerateArg(Consumer, OPT_fdiagnostics_hotness_threshold_EQ, 1665 Opts.DiagnosticsHotnessThreshold 1666 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1667 : "auto"); 1668 1669 GenerateArg(Consumer, OPT_fdiagnostics_misexpect_tolerance_EQ, 1670 Twine(*Opts.DiagnosticsMisExpectTolerance)); 1671 1672 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1673 GenerateArg(Consumer, OPT_fsanitize_recover_EQ, Sanitizer); 1674 1675 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1676 GenerateArg(Consumer, OPT_fsanitize_trap_EQ, Sanitizer); 1677 1678 if (!Opts.EmitVersionIdentMetadata) 1679 GenerateArg(Consumer, OPT_Qn); 1680 1681 switch (Opts.FiniteLoops) { 1682 case CodeGenOptions::FiniteLoopsKind::Language: 1683 break; 1684 case CodeGenOptions::FiniteLoopsKind::Always: 1685 GenerateArg(Consumer, OPT_ffinite_loops); 1686 break; 1687 case CodeGenOptions::FiniteLoopsKind::Never: 1688 GenerateArg(Consumer, OPT_fno_finite_loops); 1689 break; 1690 } 1691 } 1692 1693 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1694 InputKind IK, 1695 DiagnosticsEngine &Diags, 1696 const llvm::Triple &T, 1697 const std::string &OutputFile, 1698 const LangOptions &LangOptsRef) { 1699 unsigned NumErrorsBefore = Diags.getNumErrors(); 1700 1701 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1702 // TODO: This could be done in Driver 1703 unsigned MaxOptLevel = 3; 1704 if (OptimizationLevel > MaxOptLevel) { 1705 // If the optimization level is not supported, fall back on the default 1706 // optimization 1707 Diags.Report(diag::warn_drv_optimization_value) 1708 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1709 OptimizationLevel = MaxOptLevel; 1710 } 1711 Opts.OptimizationLevel = OptimizationLevel; 1712 1713 // The key paths of codegen options defined in Options.td start with 1714 // "CodeGenOpts.". Let's provide the expected variable name and type. 1715 CodeGenOptions &CodeGenOpts = Opts; 1716 // Some codegen options depend on language options. Let's provide the expected 1717 // variable name and type. 1718 const LangOptions *LangOpts = &LangOptsRef; 1719 1720 #define CODEGEN_OPTION_WITH_MARSHALLING(...) \ 1721 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 1722 #include "clang/Driver/Options.inc" 1723 #undef CODEGEN_OPTION_WITH_MARSHALLING 1724 1725 // At O0 we want to fully disable inlining outside of cases marked with 1726 // 'alwaysinline' that are required for correctness. 1727 if (Opts.OptimizationLevel == 0) { 1728 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1729 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1730 options::OPT_finline_hint_functions, 1731 options::OPT_fno_inline_functions, 1732 options::OPT_fno_inline)) { 1733 // Explicit inlining flags can disable some or all inlining even at 1734 // optimization levels above zero. 1735 if (A->getOption().matches(options::OPT_finline_functions)) 1736 Opts.setInlining(CodeGenOptions::NormalInlining); 1737 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1738 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1739 else 1740 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1741 } else { 1742 Opts.setInlining(CodeGenOptions::NormalInlining); 1743 } 1744 1745 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1746 // -fdirect-access-external-data. 1747 Opts.DirectAccessExternalData = 1748 Args.hasArg(OPT_fdirect_access_external_data) || 1749 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1750 LangOpts->PICLevel == 0); 1751 1752 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1753 unsigned Val = 1754 llvm::StringSwitch<unsigned>(A->getValue()) 1755 .Case("line-tables-only", llvm::codegenoptions::DebugLineTablesOnly) 1756 .Case("line-directives-only", 1757 llvm::codegenoptions::DebugDirectivesOnly) 1758 .Case("constructor", llvm::codegenoptions::DebugInfoConstructor) 1759 .Case("limited", llvm::codegenoptions::LimitedDebugInfo) 1760 .Case("standalone", llvm::codegenoptions::FullDebugInfo) 1761 .Case("unused-types", llvm::codegenoptions::UnusedTypeInfo) 1762 .Default(~0U); 1763 if (Val == ~0U) 1764 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1765 << A->getValue(); 1766 else 1767 Opts.setDebugInfo(static_cast<llvm::codegenoptions::DebugInfoKind>(Val)); 1768 } 1769 1770 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1771 // constructor homing, and vice versa for -fno-use-ctor-homing. 1772 if (const Arg *A = 1773 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1774 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1775 Opts.getDebugInfo() == llvm::codegenoptions::LimitedDebugInfo) 1776 Opts.setDebugInfo(llvm::codegenoptions::DebugInfoConstructor); 1777 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1778 Opts.getDebugInfo() == llvm::codegenoptions::DebugInfoConstructor) 1779 Opts.setDebugInfo(llvm::codegenoptions::LimitedDebugInfo); 1780 } 1781 1782 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1783 auto Split = StringRef(Arg).split('='); 1784 Opts.DebugPrefixMap.emplace_back(Split.first, Split.second); 1785 } 1786 1787 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1788 auto Split = StringRef(Arg).split('='); 1789 Opts.CoveragePrefixMap.emplace_back(Split.first, Split.second); 1790 } 1791 1792 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1793 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1794 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1795 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1796 1797 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1798 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1799 Opts.EmitCallSiteInfo = true; 1800 1801 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1802 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1803 << Opts.DIBugsReportFilePath; 1804 Opts.DIBugsReportFilePath = ""; 1805 } 1806 1807 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1808 Args.hasArg(OPT_new_struct_path_tbaa); 1809 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1810 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1811 if (Opts.SimplifyLibCalls) 1812 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1813 Opts.UnrollLoops = 1814 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1815 (Opts.OptimizationLevel > 1)); 1816 Opts.BinutilsVersion = 1817 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1818 1819 Opts.DebugNameTable = static_cast<unsigned>( 1820 Args.hasArg(OPT_ggnu_pubnames) 1821 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1822 : Args.hasArg(OPT_gpubnames) 1823 ? llvm::DICompileUnit::DebugNameTableKind::Default 1824 : llvm::DICompileUnit::DebugNameTableKind::None); 1825 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1826 StringRef Value = A->getValue(); 1827 if (Value != "simple" && Value != "mangled") 1828 Diags.Report(diag::err_drv_unsupported_option_argument) 1829 << A->getSpelling() << A->getValue(); 1830 Opts.setDebugSimpleTemplateNames( 1831 StringRef(A->getValue()) == "simple" 1832 ? llvm::codegenoptions::DebugTemplateNamesKind::Simple 1833 : llvm::codegenoptions::DebugTemplateNamesKind::Mangled); 1834 } 1835 1836 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1837 Opts.TimePasses = true; 1838 1839 // -ftime-report= is only for new pass manager. 1840 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1841 StringRef Val = A->getValue(); 1842 if (Val == "per-pass") 1843 Opts.TimePassesPerRun = false; 1844 else if (Val == "per-pass-run") 1845 Opts.TimePassesPerRun = true; 1846 else 1847 Diags.Report(diag::err_drv_invalid_value) 1848 << A->getAsString(Args) << A->getValue(); 1849 } 1850 } 1851 1852 Opts.PrepareForLTO = false; 1853 Opts.PrepareForThinLTO = false; 1854 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1855 Opts.PrepareForLTO = true; 1856 StringRef S = A->getValue(); 1857 if (S == "thin") 1858 Opts.PrepareForThinLTO = true; 1859 else if (S != "full") 1860 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1861 if (Args.hasArg(OPT_funified_lto)) 1862 Opts.PrepareForThinLTO = true; 1863 } 1864 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1865 if (IK.getLanguage() != Language::LLVM_IR) 1866 Diags.Report(diag::err_drv_argument_only_allowed_with) 1867 << A->getAsString(Args) << "-x ir"; 1868 Opts.ThinLTOIndexFile = 1869 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1870 } 1871 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1872 Opts.SaveTempsFilePrefix = 1873 llvm::StringSwitch<std::string>(A->getValue()) 1874 .Case("obj", OutputFile) 1875 .Default(llvm::sys::path::filename(OutputFile).str()); 1876 1877 // The memory profile runtime appends the pid to make this name more unique. 1878 const char *MemProfileBasename = "memprof.profraw"; 1879 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1880 SmallString<128> Path( 1881 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1882 llvm::sys::path::append(Path, MemProfileBasename); 1883 Opts.MemoryProfileOutput = std::string(Path); 1884 } else if (Args.hasArg(OPT_fmemory_profile)) 1885 Opts.MemoryProfileOutput = MemProfileBasename; 1886 1887 memcpy(Opts.CoverageVersion, "408*", 4); 1888 if (Opts.CoverageNotesFile.size() || Opts.CoverageDataFile.size()) { 1889 if (Args.hasArg(OPT_coverage_version_EQ)) { 1890 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1891 if (CoverageVersion.size() != 4) { 1892 Diags.Report(diag::err_drv_invalid_value) 1893 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1894 << CoverageVersion; 1895 } else { 1896 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1897 } 1898 } 1899 } 1900 // FIXME: For backend options that are not yet recorded as function 1901 // attributes in the IR, keep track of them so we can embed them in a 1902 // separate data section and use them when building the bitcode. 1903 for (const auto &A : Args) { 1904 // Do not encode output and input. 1905 if (A->getOption().getID() == options::OPT_o || 1906 A->getOption().getID() == options::OPT_INPUT || 1907 A->getOption().getID() == options::OPT_x || 1908 A->getOption().getID() == options::OPT_fembed_bitcode || 1909 A->getOption().matches(options::OPT_W_Group)) 1910 continue; 1911 ArgStringList ASL; 1912 A->render(Args, ASL); 1913 for (const auto &arg : ASL) { 1914 StringRef ArgStr(arg); 1915 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1916 // using \00 to separate each commandline options. 1917 Opts.CmdArgs.push_back('\0'); 1918 } 1919 } 1920 1921 auto XRayInstrBundles = 1922 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1923 if (XRayInstrBundles.empty()) 1924 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1925 else 1926 for (const auto &A : XRayInstrBundles) 1927 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1928 Diags, Opts.XRayInstrumentationBundle); 1929 1930 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1931 StringRef Name = A->getValue(); 1932 if (Name == "full") { 1933 Opts.CFProtectionReturn = 1; 1934 Opts.CFProtectionBranch = 1; 1935 } else if (Name == "return") 1936 Opts.CFProtectionReturn = 1; 1937 else if (Name == "branch") 1938 Opts.CFProtectionBranch = 1; 1939 else if (Name != "none") 1940 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1941 } 1942 1943 if (const Arg *A = Args.getLastArg(OPT_mfunction_return_EQ)) { 1944 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue()) 1945 .Case("keep", llvm::FunctionReturnThunksKind::Keep) 1946 .Case("thunk-extern", llvm::FunctionReturnThunksKind::Extern) 1947 .Default(llvm::FunctionReturnThunksKind::Invalid); 1948 // SystemZ might want to add support for "expolines." 1949 if (!T.isX86()) 1950 Diags.Report(diag::err_drv_argument_not_allowed_with) 1951 << A->getSpelling() << T.getTriple(); 1952 else if (Val == llvm::FunctionReturnThunksKind::Invalid) 1953 Diags.Report(diag::err_drv_invalid_value) 1954 << A->getAsString(Args) << A->getValue(); 1955 else if (Val == llvm::FunctionReturnThunksKind::Extern && 1956 Args.getLastArgValue(OPT_mcmodel_EQ).equals("large")) 1957 Diags.Report(diag::err_drv_argument_not_allowed_with) 1958 << A->getAsString(Args) 1959 << Args.getLastArg(OPT_mcmodel_EQ)->getAsString(Args); 1960 else 1961 Opts.FunctionReturnThunks = static_cast<unsigned>(Val); 1962 } 1963 1964 for (auto *A : 1965 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1966 CodeGenOptions::BitcodeFileToLink F; 1967 F.Filename = A->getValue(); 1968 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1969 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1970 // When linking CUDA bitcode, propagate function attributes so that 1971 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1972 F.PropagateAttrs = true; 1973 F.Internalize = true; 1974 } 1975 Opts.LinkBitcodeFiles.push_back(F); 1976 } 1977 1978 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1979 if (T.isOSAIX()) { 1980 StringRef Name = A->getValue(); 1981 if (Name == "local-dynamic") 1982 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1983 } 1984 } 1985 1986 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1987 StringRef Val = A->getValue(); 1988 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1989 Opts.FP32DenormalMode = Opts.FPDenormalMode; 1990 if (!Opts.FPDenormalMode.isValid()) 1991 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1992 } 1993 1994 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1995 StringRef Val = A->getValue(); 1996 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1997 if (!Opts.FP32DenormalMode.isValid()) 1998 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1999 } 2000 2001 // X86_32 has -fppc-struct-return and -freg-struct-return. 2002 // PPC32 has -maix-struct-return and -msvr4-struct-return. 2003 if (Arg *A = 2004 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 2005 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 2006 // TODO: We might want to consider enabling these options on AIX in the 2007 // future. 2008 if (T.isOSAIX()) 2009 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2010 << A->getSpelling() << T.str(); 2011 2012 const Option &O = A->getOption(); 2013 if (O.matches(OPT_fpcc_struct_return) || 2014 O.matches(OPT_maix_struct_return)) { 2015 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 2016 } else { 2017 assert(O.matches(OPT_freg_struct_return) || 2018 O.matches(OPT_msvr4_struct_return)); 2019 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 2020 } 2021 } 2022 2023 if (Arg *A = Args.getLastArg(OPT_mxcoff_roptr)) { 2024 if (!T.isOSAIX()) 2025 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2026 << A->getSpelling() << T.str(); 2027 2028 // Since the storage mapping class is specified per csect, 2029 // without using data sections, it is less effective to use read-only 2030 // pointers. Using read-only pointers may cause other RO variables in the 2031 // same csect to become RW when the linker acts upon `-bforceimprw`; 2032 // therefore, we require that separate data sections 2033 // are used when `-mxcoff-roptr` is in effect. We respect the setting of 2034 // data-sections since we have not found reasons to do otherwise that 2035 // overcome the user surprise of not respecting the setting. 2036 if (!Args.hasFlag(OPT_fdata_sections, OPT_fno_data_sections, false)) 2037 Diags.Report(diag::err_roptr_requires_data_sections); 2038 2039 Opts.XCOFFReadOnlyPointers = true; 2040 } 2041 2042 if (Arg *A = Args.getLastArg(OPT_mabi_EQ_quadword_atomics)) { 2043 if (!T.isOSAIX() || T.isPPC32()) 2044 Diags.Report(diag::err_drv_unsupported_opt_for_target) 2045 << A->getSpelling() << T.str(); 2046 } 2047 2048 bool NeedLocTracking = false; 2049 2050 if (!Opts.OptRecordFile.empty()) 2051 NeedLocTracking = true; 2052 2053 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 2054 Opts.OptRecordPasses = A->getValue(); 2055 NeedLocTracking = true; 2056 } 2057 2058 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 2059 Opts.OptRecordFormat = A->getValue(); 2060 NeedLocTracking = true; 2061 } 2062 2063 Opts.OptimizationRemark = 2064 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 2065 2066 Opts.OptimizationRemarkMissed = 2067 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 2068 2069 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 2070 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 2071 2072 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 2073 Opts.OptimizationRemarkMissed.hasValidPattern() || 2074 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 2075 2076 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 2077 bool UsingProfile = 2078 UsingSampleProfile || !Opts.ProfileInstrumentUsePath.empty(); 2079 2080 if (Opts.DiagnosticsWithHotness && !UsingProfile && 2081 // An IR file will contain PGO as metadata 2082 IK.getLanguage() != Language::LLVM_IR) 2083 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 2084 << "-fdiagnostics-show-hotness"; 2085 2086 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 2087 if (auto *arg = 2088 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 2089 auto ResultOrErr = 2090 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 2091 2092 if (!ResultOrErr) { 2093 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 2094 << "-fdiagnostics-hotness-threshold="; 2095 } else { 2096 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 2097 if ((!Opts.DiagnosticsHotnessThreshold || 2098 *Opts.DiagnosticsHotnessThreshold > 0) && 2099 !UsingProfile) 2100 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 2101 << "-fdiagnostics-hotness-threshold="; 2102 } 2103 } 2104 2105 if (auto *arg = 2106 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 2107 auto ResultOrErr = parseToleranceOption(arg->getValue()); 2108 2109 if (!ResultOrErr) { 2110 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 2111 << "-fdiagnostics-misexpect-tolerance="; 2112 } else { 2113 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 2114 if ((!Opts.DiagnosticsMisExpectTolerance || 2115 *Opts.DiagnosticsMisExpectTolerance > 0) && 2116 !UsingProfile) 2117 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 2118 << "-fdiagnostics-misexpect-tolerance="; 2119 } 2120 } 2121 2122 // If the user requested to use a sample profile for PGO, then the 2123 // backend will need to track source location information so the profile 2124 // can be incorporated into the IR. 2125 if (UsingSampleProfile) 2126 NeedLocTracking = true; 2127 2128 if (!Opts.StackUsageOutput.empty()) 2129 NeedLocTracking = true; 2130 2131 // If the user requested a flag that requires source locations available in 2132 // the backend, make sure that the backend tracks source location information. 2133 if (NeedLocTracking && 2134 Opts.getDebugInfo() == llvm::codegenoptions::NoDebugInfo) 2135 Opts.setDebugInfo(llvm::codegenoptions::LocTrackingOnly); 2136 2137 // Parse -fsanitize-recover= arguments. 2138 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2139 parseSanitizerKinds("-fsanitize-recover=", 2140 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2141 Opts.SanitizeRecover); 2142 parseSanitizerKinds("-fsanitize-trap=", 2143 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2144 Opts.SanitizeTrap); 2145 2146 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2147 2148 if (Args.hasArg(options::OPT_ffinite_loops)) 2149 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2150 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2151 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2152 2153 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2154 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2155 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2156 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2157 2158 return Diags.getNumErrors() == NumErrorsBefore; 2159 } 2160 2161 static void GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2162 ArgumentConsumer Consumer) { 2163 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2164 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 2165 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2166 #include "clang/Driver/Options.inc" 2167 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2168 2169 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2170 GenerateArg(Consumer, OPT_show_includes); 2171 2172 for (const auto &Dep : Opts.ExtraDeps) { 2173 switch (Dep.second) { 2174 case EDK_SanitizeIgnorelist: 2175 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2176 continue; 2177 case EDK_ModuleFile: 2178 // Module file arguments are generated from FrontendOptions and 2179 // HeaderSearchOptions. 2180 continue; 2181 case EDK_ProfileList: 2182 // Profile list arguments are generated from LanguageOptions via the 2183 // marshalling infrastructure. 2184 continue; 2185 case EDK_DepFileEntry: 2186 GenerateArg(Consumer, OPT_fdepfile_entry, Dep.first); 2187 break; 2188 } 2189 } 2190 } 2191 2192 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2193 ArgList &Args, DiagnosticsEngine &Diags, 2194 frontend::ActionKind Action, 2195 bool ShowLineMarkers) { 2196 unsigned NumErrorsBefore = Diags.getNumErrors(); 2197 2198 DependencyOutputOptions &DependencyOutputOpts = Opts; 2199 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 2200 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2201 #include "clang/Driver/Options.inc" 2202 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2203 2204 if (Args.hasArg(OPT_show_includes)) { 2205 // Writing both /showIncludes and preprocessor output to stdout 2206 // would produce interleaved output, so use stderr for /showIncludes. 2207 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2208 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2209 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2210 else 2211 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2212 } else { 2213 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2214 } 2215 2216 // Add sanitizer ignorelists as extra dependencies. 2217 // They won't be discovered by the regular preprocessor, so 2218 // we let make / ninja to know about this implicit dependency. 2219 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2220 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2221 StringRef Val = A->getValue(); 2222 if (!Val.contains('=')) 2223 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2224 } 2225 if (Opts.IncludeSystemHeaders) { 2226 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2227 StringRef Val = A->getValue(); 2228 if (!Val.contains('=')) 2229 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2230 } 2231 } 2232 } 2233 2234 // -fprofile-list= dependencies. 2235 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2236 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2237 2238 // Propagate the extra dependencies. 2239 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2240 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2241 2242 // Only the -fmodule-file=<file> form. 2243 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2244 StringRef Val = A->getValue(); 2245 if (!Val.contains('=')) 2246 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2247 } 2248 2249 // Check for invalid combinations of header-include-format 2250 // and header-include-filtering. 2251 if ((Opts.HeaderIncludeFormat == HIFMT_Textual && 2252 Opts.HeaderIncludeFiltering != HIFIL_None) || 2253 (Opts.HeaderIncludeFormat == HIFMT_JSON && 2254 Opts.HeaderIncludeFiltering != HIFIL_Only_Direct_System)) 2255 Diags.Report(diag::err_drv_print_header_env_var_combination_cc1) 2256 << Args.getLastArg(OPT_header_include_format_EQ)->getValue() 2257 << Args.getLastArg(OPT_header_include_filtering_EQ)->getValue(); 2258 2259 return Diags.getNumErrors() == NumErrorsBefore; 2260 } 2261 2262 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2263 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2264 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2265 // Support both clang's -f[no-]color-diagnostics and gcc's 2266 // -f[no-]diagnostics-colors[=never|always|auto]. 2267 enum { 2268 Colors_On, 2269 Colors_Off, 2270 Colors_Auto 2271 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2272 for (auto *A : Args) { 2273 const Option &O = A->getOption(); 2274 if (O.matches(options::OPT_fcolor_diagnostics)) { 2275 ShowColors = Colors_On; 2276 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2277 ShowColors = Colors_Off; 2278 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2279 StringRef Value(A->getValue()); 2280 if (Value == "always") 2281 ShowColors = Colors_On; 2282 else if (Value == "never") 2283 ShowColors = Colors_Off; 2284 else if (Value == "auto") 2285 ShowColors = Colors_Auto; 2286 } 2287 } 2288 return ShowColors == Colors_On || 2289 (ShowColors == Colors_Auto && 2290 llvm::sys::Process::StandardErrHasColors()); 2291 } 2292 2293 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2294 DiagnosticsEngine &Diags) { 2295 bool Success = true; 2296 for (const auto &Prefix : VerifyPrefixes) { 2297 // Every prefix must start with a letter and contain only alphanumeric 2298 // characters, hyphens, and underscores. 2299 auto BadChar = llvm::find_if(Prefix, [](char C) { 2300 return !isAlphanumeric(C) && C != '-' && C != '_'; 2301 }); 2302 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2303 Success = false; 2304 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2305 Diags.Report(diag::note_drv_verify_prefix_spelling); 2306 } 2307 } 2308 return Success; 2309 } 2310 2311 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2312 ArgumentConsumer Consumer) { 2313 const FileSystemOptions &FileSystemOpts = Opts; 2314 2315 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \ 2316 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2317 #include "clang/Driver/Options.inc" 2318 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2319 } 2320 2321 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2322 DiagnosticsEngine &Diags) { 2323 unsigned NumErrorsBefore = Diags.getNumErrors(); 2324 2325 FileSystemOptions &FileSystemOpts = Opts; 2326 2327 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \ 2328 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2329 #include "clang/Driver/Options.inc" 2330 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2331 2332 return Diags.getNumErrors() == NumErrorsBefore; 2333 } 2334 2335 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2336 ArgumentConsumer Consumer) { 2337 const MigratorOptions &MigratorOpts = Opts; 2338 #define MIGRATOR_OPTION_WITH_MARSHALLING(...) \ 2339 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2340 #include "clang/Driver/Options.inc" 2341 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2342 } 2343 2344 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2345 DiagnosticsEngine &Diags) { 2346 unsigned NumErrorsBefore = Diags.getNumErrors(); 2347 2348 MigratorOptions &MigratorOpts = Opts; 2349 2350 #define MIGRATOR_OPTION_WITH_MARSHALLING(...) \ 2351 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2352 #include "clang/Driver/Options.inc" 2353 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2354 2355 return Diags.getNumErrors() == NumErrorsBefore; 2356 } 2357 2358 void CompilerInvocationBase::GenerateDiagnosticArgs( 2359 const DiagnosticOptions &Opts, ArgumentConsumer Consumer, 2360 bool DefaultDiagColor) { 2361 const DiagnosticOptions *DiagnosticOpts = &Opts; 2362 #define DIAG_OPTION_WITH_MARSHALLING(...) \ 2363 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2364 #include "clang/Driver/Options.inc" 2365 #undef DIAG_OPTION_WITH_MARSHALLING 2366 2367 if (!Opts.DiagnosticSerializationFile.empty()) 2368 GenerateArg(Consumer, OPT_diagnostic_serialized_file, 2369 Opts.DiagnosticSerializationFile); 2370 2371 if (Opts.ShowColors) 2372 GenerateArg(Consumer, OPT_fcolor_diagnostics); 2373 2374 if (Opts.VerifyDiagnostics && 2375 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2376 GenerateArg(Consumer, OPT_verify); 2377 2378 for (const auto &Prefix : Opts.VerifyPrefixes) 2379 if (Prefix != "expected") 2380 GenerateArg(Consumer, OPT_verify_EQ, Prefix); 2381 2382 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2383 if (VIU == DiagnosticLevelMask::None) { 2384 // This is the default, don't generate anything. 2385 } else if (VIU == DiagnosticLevelMask::All) { 2386 GenerateArg(Consumer, OPT_verify_ignore_unexpected); 2387 } else { 2388 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2389 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "note"); 2390 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2391 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "remark"); 2392 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2393 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "warning"); 2394 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2395 GenerateArg(Consumer, OPT_verify_ignore_unexpected_EQ, "error"); 2396 } 2397 2398 for (const auto &Warning : Opts.Warnings) { 2399 // This option is automatically generated from UndefPrefixes. 2400 if (Warning == "undef-prefix") 2401 continue; 2402 Consumer(StringRef("-W") + Warning); 2403 } 2404 2405 for (const auto &Remark : Opts.Remarks) { 2406 // These arguments are generated from OptimizationRemark fields of 2407 // CodeGenOptions. 2408 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2409 "pass-analysis", "no-pass-analysis", 2410 "pass-missed", "no-pass-missed"}; 2411 if (llvm::is_contained(IgnoredRemarks, Remark)) 2412 continue; 2413 2414 Consumer(StringRef("-R") + Remark); 2415 } 2416 } 2417 2418 std::unique_ptr<DiagnosticOptions> 2419 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2420 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2421 unsigned MissingArgIndex, MissingArgCount; 2422 InputArgList Args = getDriverOptTable().ParseArgs( 2423 Argv.slice(1), MissingArgIndex, MissingArgCount); 2424 2425 bool ShowColors = true; 2426 if (std::optional<std::string> NoColor = 2427 llvm::sys::Process::GetEnv("NO_COLOR"); 2428 NoColor && !NoColor->empty()) { 2429 // If the user set the NO_COLOR environment variable, we'll honor that 2430 // unless the command line overrides it. 2431 ShowColors = false; 2432 } 2433 2434 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2435 // Any errors that would be diagnosed here will also be diagnosed later, 2436 // when the DiagnosticsEngine actually exists. 2437 (void)ParseDiagnosticArgs(*DiagOpts, Args, /*Diags=*/nullptr, ShowColors); 2438 return DiagOpts; 2439 } 2440 2441 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2442 DiagnosticsEngine *Diags, 2443 bool DefaultDiagColor) { 2444 std::optional<DiagnosticsEngine> IgnoringDiags; 2445 if (!Diags) { 2446 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2447 new IgnoringDiagConsumer()); 2448 Diags = &*IgnoringDiags; 2449 } 2450 2451 unsigned NumErrorsBefore = Diags->getNumErrors(); 2452 2453 // The key paths of diagnostic options defined in Options.td start with 2454 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2455 DiagnosticOptions *DiagnosticOpts = &Opts; 2456 2457 #define DIAG_OPTION_WITH_MARSHALLING(...) \ 2458 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, __VA_ARGS__) 2459 #include "clang/Driver/Options.inc" 2460 #undef DIAG_OPTION_WITH_MARSHALLING 2461 2462 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2463 2464 if (Arg *A = 2465 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2466 Opts.DiagnosticSerializationFile = A->getValue(); 2467 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2468 2469 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2470 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2471 if (Args.hasArg(OPT_verify)) 2472 Opts.VerifyPrefixes.push_back("expected"); 2473 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2474 // then sort it to prepare for fast lookup using std::binary_search. 2475 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2476 Opts.VerifyDiagnostics = false; 2477 else 2478 llvm::sort(Opts.VerifyPrefixes); 2479 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2480 parseDiagnosticLevelMask( 2481 "-verify-ignore-unexpected=", 2482 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2483 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2484 DiagMask = DiagnosticLevelMask::All; 2485 Opts.setVerifyIgnoreUnexpected(DiagMask); 2486 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2487 Diags->Report(diag::warn_ignoring_ftabstop_value) 2488 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2489 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2490 } 2491 2492 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2493 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2494 2495 return Diags->getNumErrors() == NumErrorsBefore; 2496 } 2497 2498 /// Parse the argument to the -ftest-module-file-extension 2499 /// command-line argument. 2500 /// 2501 /// \returns true on error, false on success. 2502 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2503 std::string &BlockName, 2504 unsigned &MajorVersion, 2505 unsigned &MinorVersion, 2506 bool &Hashed, 2507 std::string &UserInfo) { 2508 SmallVector<StringRef, 5> Args; 2509 Arg.split(Args, ':', 5); 2510 if (Args.size() < 5) 2511 return true; 2512 2513 BlockName = std::string(Args[0]); 2514 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2515 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2516 if (Args[3].getAsInteger(2, Hashed)) return true; 2517 if (Args.size() > 4) 2518 UserInfo = std::string(Args[4]); 2519 return false; 2520 } 2521 2522 /// Return a table that associates command line option specifiers with the 2523 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2524 /// intentionally missing, as this case is handled separately from other 2525 /// frontend options. 2526 static const auto &getFrontendActionTable() { 2527 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2528 {frontend::ASTDeclList, OPT_ast_list}, 2529 2530 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2531 {frontend::ASTDump, OPT_ast_dump_all}, 2532 {frontend::ASTDump, OPT_ast_dump_EQ}, 2533 {frontend::ASTDump, OPT_ast_dump}, 2534 {frontend::ASTDump, OPT_ast_dump_lookups}, 2535 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2536 2537 {frontend::ASTPrint, OPT_ast_print}, 2538 {frontend::ASTView, OPT_ast_view}, 2539 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2540 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2541 {frontend::DumpTokens, OPT_dump_tokens}, 2542 {frontend::EmitAssembly, OPT_S}, 2543 {frontend::EmitBC, OPT_emit_llvm_bc}, 2544 {frontend::EmitHTML, OPT_emit_html}, 2545 {frontend::EmitLLVM, OPT_emit_llvm}, 2546 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2547 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2548 {frontend::EmitObj, OPT_emit_obj}, 2549 {frontend::ExtractAPI, OPT_extract_api}, 2550 2551 {frontend::FixIt, OPT_fixit_EQ}, 2552 {frontend::FixIt, OPT_fixit}, 2553 2554 {frontend::GenerateModule, OPT_emit_module}, 2555 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2556 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2557 {frontend::GeneratePCH, OPT_emit_pch}, 2558 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2559 {frontend::InitOnly, OPT_init_only}, 2560 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2561 {frontend::ModuleFileInfo, OPT_module_file_info}, 2562 {frontend::VerifyPCH, OPT_verify_pch}, 2563 {frontend::PrintPreamble, OPT_print_preamble}, 2564 {frontend::PrintPreprocessedInput, OPT_E}, 2565 {frontend::TemplightDump, OPT_templight_dump}, 2566 {frontend::RewriteMacros, OPT_rewrite_macros}, 2567 {frontend::RewriteObjC, OPT_rewrite_objc}, 2568 {frontend::RewriteTest, OPT_rewrite_test}, 2569 {frontend::RunAnalysis, OPT_analyze}, 2570 {frontend::MigrateSource, OPT_migrate}, 2571 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2572 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2573 OPT_print_dependency_directives_minimized_source}, 2574 }; 2575 2576 return Table; 2577 } 2578 2579 /// Maps command line option to frontend action. 2580 static std::optional<frontend::ActionKind> 2581 getFrontendAction(OptSpecifier &Opt) { 2582 for (const auto &ActionOpt : getFrontendActionTable()) 2583 if (ActionOpt.second == Opt.getID()) 2584 return ActionOpt.first; 2585 2586 return std::nullopt; 2587 } 2588 2589 /// Maps frontend action to command line option. 2590 static std::optional<OptSpecifier> 2591 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2592 for (const auto &ActionOpt : getFrontendActionTable()) 2593 if (ActionOpt.first == ProgramAction) 2594 return OptSpecifier(ActionOpt.second); 2595 2596 return std::nullopt; 2597 } 2598 2599 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2600 ArgumentConsumer Consumer, bool IsHeader) { 2601 const FrontendOptions &FrontendOpts = Opts; 2602 #define FRONTEND_OPTION_WITH_MARSHALLING(...) \ 2603 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 2604 #include "clang/Driver/Options.inc" 2605 #undef FRONTEND_OPTION_WITH_MARSHALLING 2606 2607 std::optional<OptSpecifier> ProgramActionOpt = 2608 getProgramActionOpt(Opts.ProgramAction); 2609 2610 // Generating a simple flag covers most frontend actions. 2611 std::function<void()> GenerateProgramAction = [&]() { 2612 GenerateArg(Consumer, *ProgramActionOpt); 2613 }; 2614 2615 if (!ProgramActionOpt) { 2616 // PluginAction is the only program action handled separately. 2617 assert(Opts.ProgramAction == frontend::PluginAction && 2618 "Frontend action without option."); 2619 GenerateProgramAction = [&]() { 2620 GenerateArg(Consumer, OPT_plugin, Opts.ActionName); 2621 }; 2622 } 2623 2624 // FIXME: Simplify the complex 'AST dump' command line. 2625 if (Opts.ProgramAction == frontend::ASTDump) { 2626 GenerateProgramAction = [&]() { 2627 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2628 // marshalling infrastructure. 2629 2630 if (Opts.ASTDumpFormat != ADOF_Default) { 2631 StringRef Format; 2632 switch (Opts.ASTDumpFormat) { 2633 case ADOF_Default: 2634 llvm_unreachable("Default AST dump format."); 2635 case ADOF_JSON: 2636 Format = "json"; 2637 break; 2638 } 2639 2640 if (Opts.ASTDumpAll) 2641 GenerateArg(Consumer, OPT_ast_dump_all_EQ, Format); 2642 if (Opts.ASTDumpDecls) 2643 GenerateArg(Consumer, OPT_ast_dump_EQ, Format); 2644 } else { 2645 if (Opts.ASTDumpAll) 2646 GenerateArg(Consumer, OPT_ast_dump_all); 2647 if (Opts.ASTDumpDecls) 2648 GenerateArg(Consumer, OPT_ast_dump); 2649 } 2650 }; 2651 } 2652 2653 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2654 GenerateProgramAction = [&]() { 2655 GenerateArg(Consumer, OPT_fixit_EQ, Opts.FixItSuffix); 2656 }; 2657 } 2658 2659 GenerateProgramAction(); 2660 2661 for (const auto &PluginArgs : Opts.PluginArgs) { 2662 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2663 for (const auto &PluginArg : PluginArgs.second) 2664 denormalizeString(Consumer, 2665 Opt.getPrefix() + Opt.getName() + PluginArgs.first, 2666 Opt.getKind(), 0, PluginArg); 2667 } 2668 2669 for (const auto &Ext : Opts.ModuleFileExtensions) 2670 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2671 GenerateArg(Consumer, OPT_ftest_module_file_extension_EQ, TestExt->str()); 2672 2673 if (!Opts.CodeCompletionAt.FileName.empty()) 2674 GenerateArg(Consumer, OPT_code_completion_at, 2675 Opts.CodeCompletionAt.ToString()); 2676 2677 for (const auto &Plugin : Opts.Plugins) 2678 GenerateArg(Consumer, OPT_load, Plugin); 2679 2680 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2681 2682 for (const auto &ModuleFile : Opts.ModuleFiles) 2683 GenerateArg(Consumer, OPT_fmodule_file, ModuleFile); 2684 2685 if (Opts.AuxTargetCPU) 2686 GenerateArg(Consumer, OPT_aux_target_cpu, *Opts.AuxTargetCPU); 2687 2688 if (Opts.AuxTargetFeatures) 2689 for (const auto &Feature : *Opts.AuxTargetFeatures) 2690 GenerateArg(Consumer, OPT_aux_target_feature, Feature); 2691 2692 { 2693 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2694 StringRef ModuleMap = 2695 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2696 StringRef HeaderUnit = ""; 2697 switch (Opts.DashX.getHeaderUnitKind()) { 2698 case InputKind::HeaderUnit_None: 2699 break; 2700 case InputKind::HeaderUnit_User: 2701 HeaderUnit = "-user"; 2702 break; 2703 case InputKind::HeaderUnit_System: 2704 HeaderUnit = "-system"; 2705 break; 2706 case InputKind::HeaderUnit_Abs: 2707 HeaderUnit = "-header-unit"; 2708 break; 2709 } 2710 StringRef Header = IsHeader ? "-header" : ""; 2711 2712 StringRef Lang; 2713 switch (Opts.DashX.getLanguage()) { 2714 case Language::C: 2715 Lang = "c"; 2716 break; 2717 case Language::OpenCL: 2718 Lang = "cl"; 2719 break; 2720 case Language::OpenCLCXX: 2721 Lang = "clcpp"; 2722 break; 2723 case Language::CUDA: 2724 Lang = "cuda"; 2725 break; 2726 case Language::HIP: 2727 Lang = "hip"; 2728 break; 2729 case Language::CXX: 2730 Lang = "c++"; 2731 break; 2732 case Language::ObjC: 2733 Lang = "objective-c"; 2734 break; 2735 case Language::ObjCXX: 2736 Lang = "objective-c++"; 2737 break; 2738 case Language::RenderScript: 2739 Lang = "renderscript"; 2740 break; 2741 case Language::Asm: 2742 Lang = "assembler-with-cpp"; 2743 break; 2744 case Language::Unknown: 2745 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2746 "Generating -x argument for unknown language (not precompiled)."); 2747 Lang = "ast"; 2748 break; 2749 case Language::LLVM_IR: 2750 Lang = "ir"; 2751 break; 2752 case Language::HLSL: 2753 Lang = "hlsl"; 2754 break; 2755 } 2756 2757 GenerateArg(Consumer, OPT_x, 2758 Lang + HeaderUnit + Header + ModuleMap + Preprocessed); 2759 } 2760 2761 // OPT_INPUT has a unique class, generate it directly. 2762 for (const auto &Input : Opts.Inputs) 2763 Consumer(Input.getFile()); 2764 } 2765 2766 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2767 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2768 unsigned NumErrorsBefore = Diags.getNumErrors(); 2769 2770 FrontendOptions &FrontendOpts = Opts; 2771 2772 #define FRONTEND_OPTION_WITH_MARSHALLING(...) \ 2773 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 2774 #include "clang/Driver/Options.inc" 2775 #undef FRONTEND_OPTION_WITH_MARSHALLING 2776 2777 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2778 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2779 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2780 std::optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2781 assert(ProgramAction && "Option specifier not in Action_Group."); 2782 2783 if (ProgramAction == frontend::ASTDump && 2784 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2785 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2786 .CaseLower("default", ADOF_Default) 2787 .CaseLower("json", ADOF_JSON) 2788 .Default(std::numeric_limits<unsigned>::max()); 2789 2790 if (Val != std::numeric_limits<unsigned>::max()) 2791 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2792 else { 2793 Diags.Report(diag::err_drv_invalid_value) 2794 << A->getAsString(Args) << A->getValue(); 2795 Opts.ASTDumpFormat = ADOF_Default; 2796 } 2797 } 2798 2799 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2800 Opts.FixItSuffix = A->getValue(); 2801 2802 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2803 StringRef ArgStr = 2804 Args.hasArg(OPT_interface_stub_version_EQ) 2805 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2806 : "ifs-v1"; 2807 if (ArgStr == "experimental-yaml-elf-v1" || 2808 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2809 ArgStr == "experimental-tapi-elf-v1") { 2810 std::string ErrorMessage = 2811 "Invalid interface stub format: " + ArgStr.str() + 2812 " is deprecated."; 2813 Diags.Report(diag::err_drv_invalid_value) 2814 << "Must specify a valid interface stub format type, ie: " 2815 "-interface-stub-version=ifs-v1" 2816 << ErrorMessage; 2817 ProgramAction = frontend::ParseSyntaxOnly; 2818 } else if (!ArgStr.startswith("ifs-")) { 2819 std::string ErrorMessage = 2820 "Invalid interface stub format: " + ArgStr.str() + "."; 2821 Diags.Report(diag::err_drv_invalid_value) 2822 << "Must specify a valid interface stub format type, ie: " 2823 "-interface-stub-version=ifs-v1" 2824 << ErrorMessage; 2825 ProgramAction = frontend::ParseSyntaxOnly; 2826 } 2827 } 2828 2829 Opts.ProgramAction = *ProgramAction; 2830 } 2831 2832 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2833 Opts.Plugins.emplace_back(A->getValue(0)); 2834 Opts.ProgramAction = frontend::PluginAction; 2835 Opts.ActionName = A->getValue(); 2836 } 2837 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2838 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2839 2840 for (const std::string &Arg : 2841 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2842 std::string BlockName; 2843 unsigned MajorVersion; 2844 unsigned MinorVersion; 2845 bool Hashed; 2846 std::string UserInfo; 2847 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2848 MinorVersion, Hashed, UserInfo)) { 2849 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2850 2851 continue; 2852 } 2853 2854 // Add the testing module file extension. 2855 Opts.ModuleFileExtensions.push_back( 2856 std::make_shared<TestModuleFileExtension>( 2857 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2858 } 2859 2860 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2861 Opts.CodeCompletionAt = 2862 ParsedSourceLocation::FromString(A->getValue()); 2863 if (Opts.CodeCompletionAt.FileName.empty()) 2864 Diags.Report(diag::err_drv_invalid_value) 2865 << A->getAsString(Args) << A->getValue(); 2866 } 2867 2868 Opts.Plugins = Args.getAllArgValues(OPT_load); 2869 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2870 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2871 // Only the -fmodule-file=<file> form. 2872 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2873 StringRef Val = A->getValue(); 2874 if (!Val.contains('=')) 2875 Opts.ModuleFiles.push_back(std::string(Val)); 2876 } 2877 2878 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2879 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2880 << "-emit-module"; 2881 2882 if (Args.hasArg(OPT_aux_target_cpu)) 2883 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2884 if (Args.hasArg(OPT_aux_target_feature)) 2885 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2886 2887 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2888 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2889 Diags.Report(diag::err_drv_argument_not_allowed_with) 2890 << "ARC migration" << "ObjC migration"; 2891 } 2892 2893 InputKind DashX(Language::Unknown); 2894 if (const Arg *A = Args.getLastArg(OPT_x)) { 2895 StringRef XValue = A->getValue(); 2896 2897 // Parse suffixes: 2898 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 2899 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2900 bool Preprocessed = XValue.consume_back("-cpp-output"); 2901 bool ModuleMap = XValue.consume_back("-module-map"); 2902 // Detect and consume the header indicator. 2903 bool IsHeader = 2904 XValue != "precompiled-header" && XValue.consume_back("-header"); 2905 2906 // If we have c++-{user,system}-header, that indicates a header unit input 2907 // likewise, if the user put -fmodule-header together with a header with an 2908 // absolute path (header-unit-header). 2909 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 2910 if (IsHeader || Preprocessed) { 2911 if (XValue.consume_back("-header-unit")) 2912 HUK = InputKind::HeaderUnit_Abs; 2913 else if (XValue.consume_back("-system")) 2914 HUK = InputKind::HeaderUnit_System; 2915 else if (XValue.consume_back("-user")) 2916 HUK = InputKind::HeaderUnit_User; 2917 } 2918 2919 // The value set by this processing is an un-preprocessed source which is 2920 // not intended to be a module map or header unit. 2921 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 2922 HUK == InputKind::HeaderUnit_None; 2923 2924 // Principal languages. 2925 DashX = llvm::StringSwitch<InputKind>(XValue) 2926 .Case("c", Language::C) 2927 .Case("cl", Language::OpenCL) 2928 .Case("clcpp", Language::OpenCLCXX) 2929 .Case("cuda", Language::CUDA) 2930 .Case("hip", Language::HIP) 2931 .Case("c++", Language::CXX) 2932 .Case("objective-c", Language::ObjC) 2933 .Case("objective-c++", Language::ObjCXX) 2934 .Case("renderscript", Language::RenderScript) 2935 .Case("hlsl", Language::HLSL) 2936 .Default(Language::Unknown); 2937 2938 // "objc[++]-cpp-output" is an acceptable synonym for 2939 // "objective-c[++]-cpp-output". 2940 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 2941 HUK == InputKind::HeaderUnit_None) 2942 DashX = llvm::StringSwitch<InputKind>(XValue) 2943 .Case("objc", Language::ObjC) 2944 .Case("objc++", Language::ObjCXX) 2945 .Default(Language::Unknown); 2946 2947 // Some special cases cannot be combined with suffixes. 2948 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 2949 HUK == InputKind::HeaderUnit_None) 2950 DashX = llvm::StringSwitch<InputKind>(XValue) 2951 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2952 .Case("assembler-with-cpp", Language::Asm) 2953 .Cases("ast", "pcm", "precompiled-header", 2954 InputKind(Language::Unknown, InputKind::Precompiled)) 2955 .Case("ir", Language::LLVM_IR) 2956 .Default(Language::Unknown); 2957 2958 if (DashX.isUnknown()) 2959 Diags.Report(diag::err_drv_invalid_value) 2960 << A->getAsString(Args) << A->getValue(); 2961 2962 if (Preprocessed) 2963 DashX = DashX.getPreprocessed(); 2964 // A regular header is considered mutually exclusive with a header unit. 2965 if (HUK != InputKind::HeaderUnit_None) { 2966 DashX = DashX.withHeaderUnit(HUK); 2967 IsHeaderFile = true; 2968 } else if (IsHeaderFile) 2969 DashX = DashX.getHeader(); 2970 if (ModuleMap) 2971 DashX = DashX.withFormat(InputKind::ModuleMap); 2972 } 2973 2974 // '-' is the default input if none is given. 2975 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2976 Opts.Inputs.clear(); 2977 if (Inputs.empty()) 2978 Inputs.push_back("-"); 2979 2980 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 2981 Inputs.size() > 1) 2982 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 2983 2984 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2985 InputKind IK = DashX; 2986 if (IK.isUnknown()) { 2987 IK = FrontendOptions::getInputKindForExtension( 2988 StringRef(Inputs[i]).rsplit('.').second); 2989 // FIXME: Warn on this? 2990 if (IK.isUnknown()) 2991 IK = Language::C; 2992 // FIXME: Remove this hack. 2993 if (i == 0) 2994 DashX = IK; 2995 } 2996 2997 bool IsSystem = false; 2998 2999 // The -emit-module action implicitly takes a module map. 3000 if (Opts.ProgramAction == frontend::GenerateModule && 3001 IK.getFormat() == InputKind::Source) { 3002 IK = IK.withFormat(InputKind::ModuleMap); 3003 IsSystem = Opts.IsSystemModule; 3004 } 3005 3006 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 3007 } 3008 3009 Opts.DashX = DashX; 3010 3011 return Diags.getNumErrors() == NumErrorsBefore; 3012 } 3013 3014 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 3015 void *MainAddr) { 3016 std::string ClangExecutable = 3017 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 3018 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 3019 } 3020 3021 static void GenerateHeaderSearchArgs(const HeaderSearchOptions &Opts, 3022 ArgumentConsumer Consumer) { 3023 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 3024 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \ 3025 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 3026 #include "clang/Driver/Options.inc" 3027 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3028 3029 if (Opts.UseLibcxx) 3030 GenerateArg(Consumer, OPT_stdlib_EQ, "libc++"); 3031 3032 if (!Opts.ModuleCachePath.empty()) 3033 GenerateArg(Consumer, OPT_fmodules_cache_path, Opts.ModuleCachePath); 3034 3035 for (const auto &File : Opts.PrebuiltModuleFiles) 3036 GenerateArg(Consumer, OPT_fmodule_file, File.first + "=" + File.second); 3037 3038 for (const auto &Path : Opts.PrebuiltModulePaths) 3039 GenerateArg(Consumer, OPT_fprebuilt_module_path, Path); 3040 3041 for (const auto &Macro : Opts.ModulesIgnoreMacros) 3042 GenerateArg(Consumer, OPT_fmodules_ignore_macro, Macro.val()); 3043 3044 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 3045 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 3046 std::optional<bool> IsFramework, 3047 std::optional<bool> IgnoreSysRoot) { 3048 return llvm::is_contained(Groups, Entry.Group) && 3049 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 3050 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 3051 }; 3052 3053 auto It = Opts.UserEntries.begin(); 3054 auto End = Opts.UserEntries.end(); 3055 3056 // Add -I..., -F..., and -index-header-map options in order. 3057 for (; It < End && Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, 3058 std::nullopt, true); 3059 ++It) { 3060 OptSpecifier Opt = [It, Matches]() { 3061 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 3062 return OPT_F; 3063 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 3064 return OPT_I; 3065 if (Matches(*It, frontend::Angled, true, true)) 3066 return OPT_F; 3067 if (Matches(*It, frontend::Angled, false, true)) 3068 return OPT_I; 3069 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 3070 }(); 3071 3072 if (It->Group == frontend::IndexHeaderMap) 3073 GenerateArg(Consumer, OPT_index_header_map); 3074 GenerateArg(Consumer, Opt, It->Path); 3075 }; 3076 3077 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 3078 // have already been generated as "-I[xx]yy". If that's the case, their 3079 // position on command line was such that this has no semantic impact on 3080 // include paths. 3081 for (; It < End && 3082 Matches(*It, {frontend::After, frontend::Angled}, false, true); 3083 ++It) { 3084 OptSpecifier Opt = 3085 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 3086 GenerateArg(Consumer, Opt, It->Path); 3087 } 3088 3089 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3090 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3091 // command line was such that this has no semantic impact on include paths. 3092 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3093 GenerateArg(Consumer, OPT_idirafter, It->Path); 3094 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3095 GenerateArg(Consumer, OPT_iquote, It->Path); 3096 for (; It < End && Matches(*It, {frontend::System}, false, std::nullopt); 3097 ++It) 3098 GenerateArg(Consumer, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3099 It->Path); 3100 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3101 GenerateArg(Consumer, OPT_iframework, It->Path); 3102 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3103 GenerateArg(Consumer, OPT_iframeworkwithsysroot, It->Path); 3104 3105 // Add the paths for the various language specific isystem flags. 3106 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3107 GenerateArg(Consumer, OPT_c_isystem, It->Path); 3108 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3109 GenerateArg(Consumer, OPT_cxx_isystem, It->Path); 3110 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3111 GenerateArg(Consumer, OPT_objc_isystem, It->Path); 3112 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3113 GenerateArg(Consumer, OPT_objcxx_isystem, It->Path); 3114 3115 // Add the internal paths from a driver that detects standard include paths. 3116 // Note: Some paths that came from "-internal-isystem" arguments may have 3117 // already been generated as "-isystem". If that's the case, their position on 3118 // command line was such that this has no semantic impact on include paths. 3119 for (; It < End && 3120 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3121 ++It) { 3122 OptSpecifier Opt = It->Group == frontend::System 3123 ? OPT_internal_isystem 3124 : OPT_internal_externc_isystem; 3125 GenerateArg(Consumer, Opt, It->Path); 3126 } 3127 3128 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3129 3130 // Add the path prefixes which are implicitly treated as being system headers. 3131 for (const auto &P : Opts.SystemHeaderPrefixes) { 3132 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3133 : OPT_no_system_header_prefix; 3134 GenerateArg(Consumer, Opt, P.Prefix); 3135 } 3136 3137 for (const std::string &F : Opts.VFSOverlayFiles) 3138 GenerateArg(Consumer, OPT_ivfsoverlay, F); 3139 } 3140 3141 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3142 DiagnosticsEngine &Diags, 3143 const std::string &WorkingDir) { 3144 unsigned NumErrorsBefore = Diags.getNumErrors(); 3145 3146 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3147 3148 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \ 3149 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 3150 #include "clang/Driver/Options.inc" 3151 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3152 3153 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3154 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3155 3156 // Canonicalize -fmodules-cache-path before storing it. 3157 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3158 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3159 if (WorkingDir.empty()) 3160 llvm::sys::fs::make_absolute(P); 3161 else 3162 llvm::sys::fs::make_absolute(WorkingDir, P); 3163 } 3164 llvm::sys::path::remove_dots(P); 3165 Opts.ModuleCachePath = std::string(P.str()); 3166 3167 // Only the -fmodule-file=<name>=<file> form. 3168 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3169 StringRef Val = A->getValue(); 3170 if (Val.contains('=')) { 3171 auto Split = Val.split('='); 3172 Opts.PrebuiltModuleFiles.insert_or_assign( 3173 std::string(Split.first), std::string(Split.second)); 3174 } 3175 } 3176 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3177 Opts.AddPrebuiltModulePath(A->getValue()); 3178 3179 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3180 StringRef MacroDef = A->getValue(); 3181 Opts.ModulesIgnoreMacros.insert( 3182 llvm::CachedHashString(MacroDef.split('=').first)); 3183 } 3184 3185 // Add -I..., -F..., and -index-header-map options in order. 3186 bool IsIndexHeaderMap = false; 3187 bool IsSysrootSpecified = 3188 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3189 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3190 if (A->getOption().matches(OPT_index_header_map)) { 3191 // -index-header-map applies to the next -I or -F. 3192 IsIndexHeaderMap = true; 3193 continue; 3194 } 3195 3196 frontend::IncludeDirGroup Group = 3197 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3198 3199 bool IsFramework = A->getOption().matches(OPT_F); 3200 std::string Path = A->getValue(); 3201 3202 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3203 SmallString<32> Buffer; 3204 llvm::sys::path::append(Buffer, Opts.Sysroot, 3205 llvm::StringRef(A->getValue()).substr(1)); 3206 Path = std::string(Buffer.str()); 3207 } 3208 3209 Opts.AddPath(Path, Group, IsFramework, 3210 /*IgnoreSysroot*/ true); 3211 IsIndexHeaderMap = false; 3212 } 3213 3214 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3215 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3216 for (const auto *A : 3217 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3218 if (A->getOption().matches(OPT_iprefix)) 3219 Prefix = A->getValue(); 3220 else if (A->getOption().matches(OPT_iwithprefix)) 3221 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3222 else 3223 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3224 } 3225 3226 for (const auto *A : Args.filtered(OPT_idirafter)) 3227 Opts.AddPath(A->getValue(), frontend::After, false, true); 3228 for (const auto *A : Args.filtered(OPT_iquote)) 3229 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3230 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3231 Opts.AddPath(A->getValue(), frontend::System, false, 3232 !A->getOption().matches(OPT_iwithsysroot)); 3233 for (const auto *A : Args.filtered(OPT_iframework)) 3234 Opts.AddPath(A->getValue(), frontend::System, true, true); 3235 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3236 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3237 /*IgnoreSysRoot=*/false); 3238 3239 // Add the paths for the various language specific isystem flags. 3240 for (const auto *A : Args.filtered(OPT_c_isystem)) 3241 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3242 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3243 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3244 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3245 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3246 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3247 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3248 3249 // Add the internal paths from a driver that detects standard include paths. 3250 for (const auto *A : 3251 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3252 frontend::IncludeDirGroup Group = frontend::System; 3253 if (A->getOption().matches(OPT_internal_externc_isystem)) 3254 Group = frontend::ExternCSystem; 3255 Opts.AddPath(A->getValue(), Group, false, true); 3256 } 3257 3258 // Add the path prefixes which are implicitly treated as being system headers. 3259 for (const auto *A : 3260 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3261 Opts.AddSystemHeaderPrefix( 3262 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3263 3264 for (const auto *A : Args.filtered(OPT_ivfsoverlay, OPT_vfsoverlay)) 3265 Opts.AddVFSOverlayFile(A->getValue()); 3266 3267 return Diags.getNumErrors() == NumErrorsBefore; 3268 } 3269 3270 static void ParseAPINotesArgs(APINotesOptions &Opts, ArgList &Args, 3271 DiagnosticsEngine &diags) { 3272 if (const Arg *A = Args.getLastArg(OPT_fapinotes_swift_version)) { 3273 if (Opts.SwiftVersion.tryParse(A->getValue())) 3274 diags.Report(diag::err_drv_invalid_value) 3275 << A->getAsString(Args) << A->getValue(); 3276 } 3277 for (const Arg *A : Args.filtered(OPT_iapinotes_modules)) 3278 Opts.ModuleSearchPaths.push_back(A->getValue()); 3279 } 3280 3281 /// Check if input file kind and language standard are compatible. 3282 static bool IsInputCompatibleWithStandard(InputKind IK, 3283 const LangStandard &S) { 3284 switch (IK.getLanguage()) { 3285 case Language::Unknown: 3286 case Language::LLVM_IR: 3287 llvm_unreachable("should not parse language flags for this input"); 3288 3289 case Language::C: 3290 case Language::ObjC: 3291 case Language::RenderScript: 3292 return S.getLanguage() == Language::C; 3293 3294 case Language::OpenCL: 3295 return S.getLanguage() == Language::OpenCL || 3296 S.getLanguage() == Language::OpenCLCXX; 3297 3298 case Language::OpenCLCXX: 3299 return S.getLanguage() == Language::OpenCLCXX; 3300 3301 case Language::CXX: 3302 case Language::ObjCXX: 3303 return S.getLanguage() == Language::CXX; 3304 3305 case Language::CUDA: 3306 // FIXME: What -std= values should be permitted for CUDA compilations? 3307 return S.getLanguage() == Language::CUDA || 3308 S.getLanguage() == Language::CXX; 3309 3310 case Language::HIP: 3311 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3312 3313 case Language::Asm: 3314 // Accept (and ignore) all -std= values. 3315 // FIXME: The -std= value is not ignored; it affects the tokenization 3316 // and preprocessing rules if we're preprocessing this asm input. 3317 return true; 3318 3319 case Language::HLSL: 3320 return S.getLanguage() == Language::HLSL; 3321 } 3322 3323 llvm_unreachable("unexpected input language"); 3324 } 3325 3326 /// Get language name for given input kind. 3327 static StringRef GetInputKindName(InputKind IK) { 3328 switch (IK.getLanguage()) { 3329 case Language::C: 3330 return "C"; 3331 case Language::ObjC: 3332 return "Objective-C"; 3333 case Language::CXX: 3334 return "C++"; 3335 case Language::ObjCXX: 3336 return "Objective-C++"; 3337 case Language::OpenCL: 3338 return "OpenCL"; 3339 case Language::OpenCLCXX: 3340 return "C++ for OpenCL"; 3341 case Language::CUDA: 3342 return "CUDA"; 3343 case Language::RenderScript: 3344 return "RenderScript"; 3345 case Language::HIP: 3346 return "HIP"; 3347 3348 case Language::Asm: 3349 return "Asm"; 3350 case Language::LLVM_IR: 3351 return "LLVM IR"; 3352 3353 case Language::HLSL: 3354 return "HLSL"; 3355 3356 case Language::Unknown: 3357 break; 3358 } 3359 llvm_unreachable("unknown input language"); 3360 } 3361 3362 void CompilerInvocationBase::GenerateLangArgs(const LangOptions &Opts, 3363 ArgumentConsumer Consumer, 3364 const llvm::Triple &T, 3365 InputKind IK) { 3366 if (IK.getFormat() == InputKind::Precompiled || 3367 IK.getLanguage() == Language::LLVM_IR) { 3368 if (Opts.ObjCAutoRefCount) 3369 GenerateArg(Consumer, OPT_fobjc_arc); 3370 if (Opts.PICLevel != 0) 3371 GenerateArg(Consumer, OPT_pic_level, Twine(Opts.PICLevel)); 3372 if (Opts.PIE) 3373 GenerateArg(Consumer, OPT_pic_is_pie); 3374 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3375 GenerateArg(Consumer, OPT_fsanitize_EQ, Sanitizer); 3376 3377 return; 3378 } 3379 3380 OptSpecifier StdOpt; 3381 switch (Opts.LangStd) { 3382 case LangStandard::lang_opencl10: 3383 case LangStandard::lang_opencl11: 3384 case LangStandard::lang_opencl12: 3385 case LangStandard::lang_opencl20: 3386 case LangStandard::lang_opencl30: 3387 case LangStandard::lang_openclcpp10: 3388 case LangStandard::lang_openclcpp2021: 3389 StdOpt = OPT_cl_std_EQ; 3390 break; 3391 default: 3392 StdOpt = OPT_std_EQ; 3393 break; 3394 } 3395 3396 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3397 GenerateArg(Consumer, StdOpt, LangStandard.getName()); 3398 3399 if (Opts.IncludeDefaultHeader) 3400 GenerateArg(Consumer, OPT_finclude_default_header); 3401 if (Opts.DeclareOpenCLBuiltins) 3402 GenerateArg(Consumer, OPT_fdeclare_opencl_builtins); 3403 3404 const LangOptions *LangOpts = &Opts; 3405 3406 #define LANG_OPTION_WITH_MARSHALLING(...) \ 3407 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 3408 #include "clang/Driver/Options.inc" 3409 #undef LANG_OPTION_WITH_MARSHALLING 3410 3411 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3412 3413 if (Opts.ObjC) { 3414 GenerateArg(Consumer, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString()); 3415 3416 if (Opts.GC == LangOptions::GCOnly) 3417 GenerateArg(Consumer, OPT_fobjc_gc_only); 3418 else if (Opts.GC == LangOptions::HybridGC) 3419 GenerateArg(Consumer, OPT_fobjc_gc); 3420 else if (Opts.ObjCAutoRefCount == 1) 3421 GenerateArg(Consumer, OPT_fobjc_arc); 3422 3423 if (Opts.ObjCWeakRuntime) 3424 GenerateArg(Consumer, OPT_fobjc_runtime_has_weak); 3425 3426 if (Opts.ObjCWeak) 3427 GenerateArg(Consumer, OPT_fobjc_weak); 3428 3429 if (Opts.ObjCSubscriptingLegacyRuntime) 3430 GenerateArg(Consumer, OPT_fobjc_subscripting_legacy_runtime); 3431 } 3432 3433 if (Opts.GNUCVersion != 0) { 3434 unsigned Major = Opts.GNUCVersion / 100 / 100; 3435 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3436 unsigned Patch = Opts.GNUCVersion % 100; 3437 GenerateArg(Consumer, OPT_fgnuc_version_EQ, 3438 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch)); 3439 } 3440 3441 if (Opts.IgnoreXCOFFVisibility) 3442 GenerateArg(Consumer, OPT_mignore_xcoff_visibility); 3443 3444 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3445 GenerateArg(Consumer, OPT_ftrapv); 3446 GenerateArg(Consumer, OPT_ftrapv_handler, Opts.OverflowHandler); 3447 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3448 GenerateArg(Consumer, OPT_fwrapv); 3449 } 3450 3451 if (Opts.MSCompatibilityVersion != 0) { 3452 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3453 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3454 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3455 GenerateArg(Consumer, OPT_fms_compatibility_version, 3456 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor)); 3457 } 3458 3459 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3460 if (!Opts.Trigraphs) 3461 GenerateArg(Consumer, OPT_fno_trigraphs); 3462 } else { 3463 if (Opts.Trigraphs) 3464 GenerateArg(Consumer, OPT_ftrigraphs); 3465 } 3466 3467 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3468 GenerateArg(Consumer, OPT_fblocks); 3469 3470 if (Opts.ConvergentFunctions && 3471 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3472 GenerateArg(Consumer, OPT_fconvergent_functions); 3473 3474 if (Opts.NoBuiltin && !Opts.Freestanding) 3475 GenerateArg(Consumer, OPT_fno_builtin); 3476 3477 if (!Opts.NoBuiltin) 3478 for (const auto &Func : Opts.NoBuiltinFuncs) 3479 GenerateArg(Consumer, OPT_fno_builtin_, Func); 3480 3481 if (Opts.LongDoubleSize == 128) 3482 GenerateArg(Consumer, OPT_mlong_double_128); 3483 else if (Opts.LongDoubleSize == 64) 3484 GenerateArg(Consumer, OPT_mlong_double_64); 3485 else if (Opts.LongDoubleSize == 80) 3486 GenerateArg(Consumer, OPT_mlong_double_80); 3487 3488 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3489 3490 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3491 // '-fopenmp-targets='. 3492 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3493 GenerateArg(Consumer, OPT_fopenmp); 3494 3495 if (Opts.OpenMP != 51) 3496 GenerateArg(Consumer, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP)); 3497 3498 if (!Opts.OpenMPUseTLS) 3499 GenerateArg(Consumer, OPT_fnoopenmp_use_tls); 3500 3501 if (Opts.OpenMPIsTargetDevice) 3502 GenerateArg(Consumer, OPT_fopenmp_is_target_device); 3503 3504 if (Opts.OpenMPIRBuilder) 3505 GenerateArg(Consumer, OPT_fopenmp_enable_irbuilder); 3506 } 3507 3508 if (Opts.OpenMPSimd) { 3509 GenerateArg(Consumer, OPT_fopenmp_simd); 3510 3511 if (Opts.OpenMP != 51) 3512 GenerateArg(Consumer, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP)); 3513 } 3514 3515 if (Opts.OpenMPThreadSubscription) 3516 GenerateArg(Consumer, OPT_fopenmp_assume_threads_oversubscription); 3517 3518 if (Opts.OpenMPTeamSubscription) 3519 GenerateArg(Consumer, OPT_fopenmp_assume_teams_oversubscription); 3520 3521 if (Opts.OpenMPTargetDebug != 0) 3522 GenerateArg(Consumer, OPT_fopenmp_target_debug_EQ, 3523 Twine(Opts.OpenMPTargetDebug)); 3524 3525 if (Opts.OpenMPCUDANumSMs != 0) 3526 GenerateArg(Consumer, OPT_fopenmp_cuda_number_of_sm_EQ, 3527 Twine(Opts.OpenMPCUDANumSMs)); 3528 3529 if (Opts.OpenMPCUDABlocksPerSM != 0) 3530 GenerateArg(Consumer, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3531 Twine(Opts.OpenMPCUDABlocksPerSM)); 3532 3533 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3534 GenerateArg(Consumer, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3535 Twine(Opts.OpenMPCUDAReductionBufNum)); 3536 3537 if (!Opts.OMPTargetTriples.empty()) { 3538 std::string Targets; 3539 llvm::raw_string_ostream OS(Targets); 3540 llvm::interleave( 3541 Opts.OMPTargetTriples, OS, 3542 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3543 GenerateArg(Consumer, OPT_fopenmp_targets_EQ, OS.str()); 3544 } 3545 3546 if (!Opts.OMPHostIRFile.empty()) 3547 GenerateArg(Consumer, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile); 3548 3549 if (Opts.OpenMPCUDAMode) 3550 GenerateArg(Consumer, OPT_fopenmp_cuda_mode); 3551 3552 if (Opts.OpenACC) { 3553 GenerateArg(Consumer, OPT_fopenacc); 3554 if (!Opts.OpenACCMacroOverride.empty()) 3555 GenerateArg(Consumer, OPT_openacc_macro_override, 3556 Opts.OpenACCMacroOverride); 3557 } 3558 3559 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3560 // generated from CodeGenOptions. 3561 3562 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3563 GenerateArg(Consumer, OPT_ffp_contract, "fast"); 3564 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3565 GenerateArg(Consumer, OPT_ffp_contract, "on"); 3566 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3567 GenerateArg(Consumer, OPT_ffp_contract, "off"); 3568 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3569 GenerateArg(Consumer, OPT_ffp_contract, "fast-honor-pragmas"); 3570 3571 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3572 GenerateArg(Consumer, OPT_fsanitize_EQ, Sanitizer); 3573 3574 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3575 for (const std::string &F : Opts.NoSanitizeFiles) 3576 GenerateArg(Consumer, OPT_fsanitize_ignorelist_EQ, F); 3577 3578 switch (Opts.getClangABICompat()) { 3579 case LangOptions::ClangABI::Ver3_8: 3580 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "3.8"); 3581 break; 3582 case LangOptions::ClangABI::Ver4: 3583 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "4.0"); 3584 break; 3585 case LangOptions::ClangABI::Ver6: 3586 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "6.0"); 3587 break; 3588 case LangOptions::ClangABI::Ver7: 3589 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "7.0"); 3590 break; 3591 case LangOptions::ClangABI::Ver9: 3592 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "9.0"); 3593 break; 3594 case LangOptions::ClangABI::Ver11: 3595 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "11.0"); 3596 break; 3597 case LangOptions::ClangABI::Ver12: 3598 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "12.0"); 3599 break; 3600 case LangOptions::ClangABI::Ver14: 3601 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "14.0"); 3602 break; 3603 case LangOptions::ClangABI::Ver15: 3604 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "15.0"); 3605 break; 3606 case LangOptions::ClangABI::Ver17: 3607 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, "17.0"); 3608 break; 3609 case LangOptions::ClangABI::Latest: 3610 break; 3611 } 3612 3613 if (Opts.getSignReturnAddressScope() == 3614 LangOptions::SignReturnAddressScopeKind::All) 3615 GenerateArg(Consumer, OPT_msign_return_address_EQ, "all"); 3616 else if (Opts.getSignReturnAddressScope() == 3617 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3618 GenerateArg(Consumer, OPT_msign_return_address_EQ, "non-leaf"); 3619 3620 if (Opts.getSignReturnAddressKey() == 3621 LangOptions::SignReturnAddressKeyKind::BKey) 3622 GenerateArg(Consumer, OPT_msign_return_address_key_EQ, "b_key"); 3623 3624 if (Opts.CXXABI) 3625 GenerateArg(Consumer, OPT_fcxx_abi_EQ, 3626 TargetCXXABI::getSpelling(*Opts.CXXABI)); 3627 3628 if (Opts.RelativeCXXABIVTables) 3629 GenerateArg(Consumer, OPT_fexperimental_relative_cxx_abi_vtables); 3630 else 3631 GenerateArg(Consumer, OPT_fno_experimental_relative_cxx_abi_vtables); 3632 3633 if (Opts.UseTargetPathSeparator) 3634 GenerateArg(Consumer, OPT_ffile_reproducible); 3635 else 3636 GenerateArg(Consumer, OPT_fno_file_reproducible); 3637 3638 for (const auto &MP : Opts.MacroPrefixMap) 3639 GenerateArg(Consumer, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second); 3640 3641 if (!Opts.RandstructSeed.empty()) 3642 GenerateArg(Consumer, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed); 3643 } 3644 3645 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3646 InputKind IK, const llvm::Triple &T, 3647 std::vector<std::string> &Includes, 3648 DiagnosticsEngine &Diags) { 3649 unsigned NumErrorsBefore = Diags.getNumErrors(); 3650 3651 if (IK.getFormat() == InputKind::Precompiled || 3652 IK.getLanguage() == Language::LLVM_IR) { 3653 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3654 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3655 // what the input type is. 3656 if (Args.hasArg(OPT_fobjc_arc)) 3657 Opts.ObjCAutoRefCount = 1; 3658 // PICLevel and PIELevel are needed during code generation and this should 3659 // be set regardless of the input type. 3660 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3661 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3662 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3663 Diags, Opts.Sanitize); 3664 3665 return Diags.getNumErrors() == NumErrorsBefore; 3666 } 3667 3668 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3669 // FIXME: Should we really be parsing this for an Language::Asm input? 3670 3671 // FIXME: Cleanup per-file based stuff. 3672 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3673 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3674 LangStd = LangStandard::getLangKind(A->getValue()); 3675 if (LangStd == LangStandard::lang_unspecified) { 3676 Diags.Report(diag::err_drv_invalid_value) 3677 << A->getAsString(Args) << A->getValue(); 3678 // Report supported standards with short description. 3679 for (unsigned KindValue = 0; 3680 KindValue != LangStandard::lang_unspecified; 3681 ++KindValue) { 3682 const LangStandard &Std = LangStandard::getLangStandardForKind( 3683 static_cast<LangStandard::Kind>(KindValue)); 3684 if (IsInputCompatibleWithStandard(IK, Std)) { 3685 auto Diag = Diags.Report(diag::note_drv_use_standard); 3686 Diag << Std.getName() << Std.getDescription(); 3687 unsigned NumAliases = 0; 3688 #define LANGSTANDARD(id, name, lang, desc, features) 3689 #define LANGSTANDARD_ALIAS(id, alias) \ 3690 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3691 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3692 #include "clang/Basic/LangStandards.def" 3693 Diag << NumAliases; 3694 #define LANGSTANDARD(id, name, lang, desc, features) 3695 #define LANGSTANDARD_ALIAS(id, alias) \ 3696 if (KindValue == LangStandard::lang_##id) Diag << alias; 3697 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3698 #include "clang/Basic/LangStandards.def" 3699 } 3700 } 3701 } else { 3702 // Valid standard, check to make sure language and standard are 3703 // compatible. 3704 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3705 if (!IsInputCompatibleWithStandard(IK, Std)) { 3706 Diags.Report(diag::err_drv_argument_not_allowed_with) 3707 << A->getAsString(Args) << GetInputKindName(IK); 3708 } 3709 } 3710 } 3711 3712 // -cl-std only applies for OpenCL language standards. 3713 // Override the -std option in this case. 3714 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3715 LangStandard::Kind OpenCLLangStd 3716 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3717 .Cases("cl", "CL", LangStandard::lang_opencl10) 3718 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3719 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3720 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3721 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3722 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3723 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3724 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3725 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3726 .Default(LangStandard::lang_unspecified); 3727 3728 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3729 Diags.Report(diag::err_drv_invalid_value) 3730 << A->getAsString(Args) << A->getValue(); 3731 } 3732 else 3733 LangStd = OpenCLLangStd; 3734 } 3735 3736 // These need to be parsed now. They are used to set OpenCL defaults. 3737 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3738 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3739 3740 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3741 3742 // The key paths of codegen options defined in Options.td start with 3743 // "LangOpts->". Let's provide the expected variable name and type. 3744 LangOptions *LangOpts = &Opts; 3745 3746 #define LANG_OPTION_WITH_MARSHALLING(...) \ 3747 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 3748 #include "clang/Driver/Options.inc" 3749 #undef LANG_OPTION_WITH_MARSHALLING 3750 3751 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3752 StringRef Name = A->getValue(); 3753 if (Name == "full" || Name == "branch") { 3754 Opts.CFProtectionBranch = 1; 3755 } 3756 } 3757 3758 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3759 !Args.hasArg(OPT_sycl_std_EQ)) { 3760 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3761 // provide -sycl-std=, we want to default it to whatever the default SYCL 3762 // version is. I could not find a way to express this with the options 3763 // tablegen because we still want this value to be SYCL_None when the user 3764 // is not in device or host mode. 3765 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3766 } 3767 3768 if (Opts.ObjC) { 3769 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3770 StringRef value = arg->getValue(); 3771 if (Opts.ObjCRuntime.tryParse(value)) 3772 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3773 } 3774 3775 if (Args.hasArg(OPT_fobjc_gc_only)) 3776 Opts.setGC(LangOptions::GCOnly); 3777 else if (Args.hasArg(OPT_fobjc_gc)) 3778 Opts.setGC(LangOptions::HybridGC); 3779 else if (Args.hasArg(OPT_fobjc_arc)) { 3780 Opts.ObjCAutoRefCount = 1; 3781 if (!Opts.ObjCRuntime.allowsARC()) 3782 Diags.Report(diag::err_arc_unsupported_on_runtime); 3783 } 3784 3785 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3786 // whether the feature is actually enabled. This is predominantly 3787 // determined by -fobjc-runtime, but we allow it to be overridden 3788 // from the command line for testing purposes. 3789 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3790 Opts.ObjCWeakRuntime = 1; 3791 else 3792 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3793 3794 // ObjCWeak determines whether __weak is actually enabled. 3795 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3796 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3797 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3798 assert(!Opts.ObjCWeak); 3799 } else if (Opts.getGC() != LangOptions::NonGC) { 3800 Diags.Report(diag::err_objc_weak_with_gc); 3801 } else if (!Opts.ObjCWeakRuntime) { 3802 Diags.Report(diag::err_objc_weak_unsupported); 3803 } else { 3804 Opts.ObjCWeak = 1; 3805 } 3806 } else if (Opts.ObjCAutoRefCount) { 3807 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3808 } 3809 3810 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3811 Opts.ObjCSubscriptingLegacyRuntime = 3812 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3813 } 3814 3815 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3816 // Check that the version has 1 to 3 components and the minor and patch 3817 // versions fit in two decimal digits. 3818 VersionTuple GNUCVer; 3819 bool Invalid = GNUCVer.tryParse(A->getValue()); 3820 unsigned Major = GNUCVer.getMajor(); 3821 unsigned Minor = GNUCVer.getMinor().value_or(0); 3822 unsigned Patch = GNUCVer.getSubminor().value_or(0); 3823 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3824 Diags.Report(diag::err_drv_invalid_value) 3825 << A->getAsString(Args) << A->getValue(); 3826 } 3827 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3828 } 3829 3830 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 3831 Opts.IgnoreXCOFFVisibility = 1; 3832 3833 if (Args.hasArg(OPT_ftrapv)) { 3834 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3835 // Set the handler, if one is specified. 3836 Opts.OverflowHandler = 3837 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3838 } 3839 else if (Args.hasArg(OPT_fwrapv)) 3840 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3841 3842 Opts.MSCompatibilityVersion = 0; 3843 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3844 VersionTuple VT; 3845 if (VT.tryParse(A->getValue())) 3846 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3847 << A->getValue(); 3848 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3849 VT.getMinor().value_or(0) * 100000 + 3850 VT.getSubminor().value_or(0); 3851 } 3852 3853 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3854 // is specified, or -std is set to a conforming mode. 3855 // Trigraphs are disabled by default in c++1z onwards. 3856 // For z/OS, trigraphs are enabled by default (without regard to the above). 3857 Opts.Trigraphs = 3858 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3859 Opts.Trigraphs = 3860 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3861 3862 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3863 && Opts.OpenCLVersion == 200); 3864 3865 Opts.ConvergentFunctions = Args.hasArg(OPT_fconvergent_functions) || 3866 Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3867 Opts.SYCLIsDevice; 3868 3869 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3870 if (!Opts.NoBuiltin) 3871 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3872 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 3873 if (A->getOption().matches(options::OPT_mlong_double_64)) 3874 Opts.LongDoubleSize = 64; 3875 else if (A->getOption().matches(options::OPT_mlong_double_80)) 3876 Opts.LongDoubleSize = 80; 3877 else if (A->getOption().matches(options::OPT_mlong_double_128)) 3878 Opts.LongDoubleSize = 128; 3879 else 3880 Opts.LongDoubleSize = 0; 3881 } 3882 if (Opts.FastRelaxedMath || Opts.CLUnsafeMath) 3883 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3884 3885 llvm::sort(Opts.ModuleFeatures); 3886 3887 // -mrtd option 3888 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3889 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3890 Diags.Report(diag::err_drv_argument_not_allowed_with) 3891 << A->getSpelling() << "-fdefault-calling-conv"; 3892 else { 3893 switch (T.getArch()) { 3894 case llvm::Triple::x86: 3895 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3896 break; 3897 case llvm::Triple::m68k: 3898 Opts.setDefaultCallingConv(LangOptions::DCC_RtdCall); 3899 break; 3900 default: 3901 Diags.Report(diag::err_drv_argument_not_allowed_with) 3902 << A->getSpelling() << T.getTriple(); 3903 } 3904 } 3905 } 3906 3907 // Check if -fopenmp is specified and set default version to 5.0. 3908 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 51 : 0; 3909 // Check if -fopenmp-simd is specified. 3910 bool IsSimdSpecified = 3911 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3912 /*Default=*/false); 3913 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3914 Opts.OpenMPUseTLS = 3915 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3916 Opts.OpenMPIsTargetDevice = 3917 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_target_device); 3918 Opts.OpenMPIRBuilder = 3919 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3920 bool IsTargetSpecified = 3921 Opts.OpenMPIsTargetDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3922 3923 Opts.ConvergentFunctions = 3924 Opts.ConvergentFunctions || Opts.OpenMPIsTargetDevice; 3925 3926 if (Opts.OpenMP || Opts.OpenMPSimd) { 3927 if (int Version = getLastArgIntValue( 3928 Args, OPT_fopenmp_version_EQ, 3929 (IsSimdSpecified || IsTargetSpecified) ? 51 : Opts.OpenMP, Diags)) 3930 Opts.OpenMP = Version; 3931 // Provide diagnostic when a given target is not expected to be an OpenMP 3932 // device or host. 3933 if (!Opts.OpenMPIsTargetDevice) { 3934 switch (T.getArch()) { 3935 default: 3936 break; 3937 // Add unsupported host targets here: 3938 case llvm::Triple::nvptx: 3939 case llvm::Triple::nvptx64: 3940 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3941 break; 3942 } 3943 } 3944 } 3945 3946 // Set the flag to prevent the implementation from emitting device exception 3947 // handling code for those requiring so. 3948 if ((Opts.OpenMPIsTargetDevice && (T.isNVPTX() || T.isAMDGCN())) || 3949 Opts.OpenCLCPlusPlus) { 3950 3951 Opts.Exceptions = 0; 3952 Opts.CXXExceptions = 0; 3953 } 3954 if (Opts.OpenMPIsTargetDevice && T.isNVPTX()) { 3955 Opts.OpenMPCUDANumSMs = 3956 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3957 Opts.OpenMPCUDANumSMs, Diags); 3958 Opts.OpenMPCUDABlocksPerSM = 3959 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3960 Opts.OpenMPCUDABlocksPerSM, Diags); 3961 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3962 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3963 Opts.OpenMPCUDAReductionBufNum, Diags); 3964 } 3965 3966 // Set the value of the debugging flag used in the new offloading device RTL. 3967 // Set either by a specific value or to a default if not specified. 3968 if (Opts.OpenMPIsTargetDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 3969 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 3970 Opts.OpenMPTargetDebug = getLastArgIntValue( 3971 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 3972 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 3973 Opts.OpenMPTargetDebug = 1; 3974 } 3975 3976 if (Opts.OpenMPIsTargetDevice) { 3977 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 3978 Opts.OpenMPTeamSubscription = true; 3979 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 3980 Opts.OpenMPThreadSubscription = true; 3981 } 3982 3983 // Get the OpenMP target triples if any. 3984 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3985 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3986 auto getArchPtrSize = [](const llvm::Triple &T) { 3987 if (T.isArch16Bit()) 3988 return Arch16Bit; 3989 if (T.isArch32Bit()) 3990 return Arch32Bit; 3991 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3992 return Arch64Bit; 3993 }; 3994 3995 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3996 llvm::Triple TT(A->getValue(i)); 3997 3998 if (TT.getArch() == llvm::Triple::UnknownArch || 3999 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 4000 TT.getArch() == llvm::Triple::nvptx || 4001 TT.getArch() == llvm::Triple::nvptx64 || 4002 TT.getArch() == llvm::Triple::amdgcn || 4003 TT.getArch() == llvm::Triple::x86 || 4004 TT.getArch() == llvm::Triple::x86_64)) 4005 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 4006 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 4007 Diags.Report(diag::err_drv_incompatible_omp_arch) 4008 << A->getValue(i) << T.str(); 4009 else 4010 Opts.OMPTargetTriples.push_back(TT); 4011 } 4012 } 4013 4014 // Get OpenMP host file path if any and report if a non existent file is 4015 // found 4016 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 4017 Opts.OMPHostIRFile = A->getValue(); 4018 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 4019 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 4020 << Opts.OMPHostIRFile; 4021 } 4022 4023 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 4024 Opts.OpenMPCUDAMode = Opts.OpenMPIsTargetDevice && 4025 (T.isNVPTX() || T.isAMDGCN()) && 4026 Args.hasArg(options::OPT_fopenmp_cuda_mode); 4027 4028 // OpenACC Configuration. 4029 if (Args.hasArg(options::OPT_fopenacc)) { 4030 Opts.OpenACC = true; 4031 4032 if (Arg *A = Args.getLastArg(options::OPT_openacc_macro_override)) 4033 Opts.OpenACCMacroOverride = A->getValue(); 4034 } 4035 4036 // FIXME: Eliminate this dependency. 4037 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 4038 OptSize = getOptimizationLevelSize(Args); 4039 Opts.Optimize = Opt != 0; 4040 Opts.OptimizeSize = OptSize != 0; 4041 4042 // This is the __NO_INLINE__ define, which just depends on things like the 4043 // optimization level and -fno-inline, not actually whether the backend has 4044 // inlining enabled. 4045 Opts.NoInlineDefine = !Opts.Optimize; 4046 if (Arg *InlineArg = Args.getLastArg( 4047 options::OPT_finline_functions, options::OPT_finline_hint_functions, 4048 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 4049 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 4050 Opts.NoInlineDefine = true; 4051 4052 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 4053 StringRef Val = A->getValue(); 4054 if (Val == "fast") 4055 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4056 else if (Val == "on") 4057 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 4058 else if (Val == "off") 4059 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 4060 else if (Val == "fast-honor-pragmas") 4061 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 4062 else 4063 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 4064 } 4065 4066 // Parse -fsanitize= arguments. 4067 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4068 Diags, Opts.Sanitize); 4069 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 4070 std::vector<std::string> systemIgnorelists = 4071 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 4072 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 4073 systemIgnorelists.begin(), 4074 systemIgnorelists.end()); 4075 4076 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 4077 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4078 4079 StringRef Ver = A->getValue(); 4080 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4081 unsigned Major, Minor = 0; 4082 4083 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4084 // y or y.0 (4 <= y <= current version). 4085 if (!VerParts.first.startswith("0") && 4086 !VerParts.first.getAsInteger(10, Major) && 4087 3 <= Major && Major <= CLANG_VERSION_MAJOR && 4088 (Major == 3 ? VerParts.second.size() == 1 && 4089 !VerParts.second.getAsInteger(10, Minor) 4090 : VerParts.first.size() == Ver.size() || 4091 VerParts.second == "0")) { 4092 // Got a valid version number. 4093 if (Major == 3 && Minor <= 8) 4094 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4095 else if (Major <= 4) 4096 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4097 else if (Major <= 6) 4098 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4099 else if (Major <= 7) 4100 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4101 else if (Major <= 9) 4102 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4103 else if (Major <= 11) 4104 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4105 else if (Major <= 12) 4106 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4107 else if (Major <= 14) 4108 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 4109 else if (Major <= 15) 4110 Opts.setClangABICompat(LangOptions::ClangABI::Ver15); 4111 else if (Major <= 17) 4112 Opts.setClangABICompat(LangOptions::ClangABI::Ver17); 4113 } else if (Ver != "latest") { 4114 Diags.Report(diag::err_drv_invalid_value) 4115 << A->getAsString(Args) << A->getValue(); 4116 } 4117 } 4118 4119 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4120 StringRef SignScope = A->getValue(); 4121 4122 if (SignScope.equals_insensitive("none")) 4123 Opts.setSignReturnAddressScope( 4124 LangOptions::SignReturnAddressScopeKind::None); 4125 else if (SignScope.equals_insensitive("all")) 4126 Opts.setSignReturnAddressScope( 4127 LangOptions::SignReturnAddressScopeKind::All); 4128 else if (SignScope.equals_insensitive("non-leaf")) 4129 Opts.setSignReturnAddressScope( 4130 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4131 else 4132 Diags.Report(diag::err_drv_invalid_value) 4133 << A->getAsString(Args) << SignScope; 4134 4135 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4136 StringRef SignKey = A->getValue(); 4137 if (!SignScope.empty() && !SignKey.empty()) { 4138 if (SignKey.equals_insensitive("a_key")) 4139 Opts.setSignReturnAddressKey( 4140 LangOptions::SignReturnAddressKeyKind::AKey); 4141 else if (SignKey.equals_insensitive("b_key")) 4142 Opts.setSignReturnAddressKey( 4143 LangOptions::SignReturnAddressKeyKind::BKey); 4144 else 4145 Diags.Report(diag::err_drv_invalid_value) 4146 << A->getAsString(Args) << SignKey; 4147 } 4148 } 4149 } 4150 4151 // The value can be empty, which indicates the system default should be used. 4152 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4153 if (!CXXABI.empty()) { 4154 if (!TargetCXXABI::isABI(CXXABI)) { 4155 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4156 } else { 4157 auto Kind = TargetCXXABI::getKind(CXXABI); 4158 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4159 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4160 else 4161 Opts.CXXABI = Kind; 4162 } 4163 } 4164 4165 Opts.RelativeCXXABIVTables = 4166 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4167 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4168 TargetCXXABI::usesRelativeVTables(T)); 4169 4170 // RTTI is on by default. 4171 bool HasRTTI = Args.hasFlag(options::OPT_frtti, options::OPT_fno_rtti, true); 4172 Opts.OmitVTableRTTI = 4173 Args.hasFlag(options::OPT_fexperimental_omit_vtable_rtti, 4174 options::OPT_fno_experimental_omit_vtable_rtti, false); 4175 if (Opts.OmitVTableRTTI && HasRTTI) 4176 Diags.Report(diag::err_drv_using_omit_rtti_component_without_no_rtti); 4177 4178 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4179 auto Split = StringRef(A).split('='); 4180 Opts.MacroPrefixMap.insert( 4181 {std::string(Split.first), std::string(Split.second)}); 4182 } 4183 4184 Opts.UseTargetPathSeparator = 4185 !Args.getLastArg(OPT_fno_file_reproducible) && 4186 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4187 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4188 Args.getLastArg(OPT_ffile_reproducible)); 4189 4190 // Error if -mvscale-min is unbounded. 4191 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4192 unsigned VScaleMin; 4193 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4194 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4195 } 4196 4197 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4198 std::ifstream SeedFile(A->getValue(0)); 4199 4200 if (!SeedFile.is_open()) 4201 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4202 << A->getValue(0); 4203 4204 std::getline(SeedFile, Opts.RandstructSeed); 4205 } 4206 4207 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4208 Opts.RandstructSeed = A->getValue(0); 4209 4210 // Validate options for HLSL 4211 if (Opts.HLSL) { 4212 // TODO: Revisit restricting SPIR-V to logical once we've figured out how to 4213 // handle PhysicalStorageBuffer64 memory model 4214 if (T.isDXIL() || T.isSPIRVLogical()) { 4215 enum { ShaderModel, ShaderStage }; 4216 if (T.getOSName().empty()) { 4217 Diags.Report(diag::err_drv_hlsl_bad_shader_required_in_target) 4218 << ShaderModel << T.str(); 4219 } else if (!T.isShaderModelOS() || T.getOSVersion() == VersionTuple(0)) { 4220 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4221 << ShaderModel << T.getOSName() << T.str(); 4222 } else if (T.getEnvironmentName().empty()) { 4223 Diags.Report(diag::err_drv_hlsl_bad_shader_required_in_target) 4224 << ShaderStage << T.str(); 4225 } else if (!T.isShaderStageEnvironment()) { 4226 Diags.Report(diag::err_drv_hlsl_bad_shader_unsupported) 4227 << ShaderStage << T.getEnvironmentName() << T.str(); 4228 } 4229 } else 4230 Diags.Report(diag::err_drv_hlsl_unsupported_target) << T.str(); 4231 } 4232 4233 return Diags.getNumErrors() == NumErrorsBefore; 4234 } 4235 4236 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4237 switch (Action) { 4238 case frontend::ASTDeclList: 4239 case frontend::ASTDump: 4240 case frontend::ASTPrint: 4241 case frontend::ASTView: 4242 case frontend::EmitAssembly: 4243 case frontend::EmitBC: 4244 case frontend::EmitHTML: 4245 case frontend::EmitLLVM: 4246 case frontend::EmitLLVMOnly: 4247 case frontend::EmitCodeGenOnly: 4248 case frontend::EmitObj: 4249 case frontend::ExtractAPI: 4250 case frontend::FixIt: 4251 case frontend::GenerateModule: 4252 case frontend::GenerateModuleInterface: 4253 case frontend::GenerateHeaderUnit: 4254 case frontend::GeneratePCH: 4255 case frontend::GenerateInterfaceStubs: 4256 case frontend::ParseSyntaxOnly: 4257 case frontend::ModuleFileInfo: 4258 case frontend::VerifyPCH: 4259 case frontend::PluginAction: 4260 case frontend::RewriteObjC: 4261 case frontend::RewriteTest: 4262 case frontend::RunAnalysis: 4263 case frontend::TemplightDump: 4264 case frontend::MigrateSource: 4265 return false; 4266 4267 case frontend::DumpCompilerOptions: 4268 case frontend::DumpRawTokens: 4269 case frontend::DumpTokens: 4270 case frontend::InitOnly: 4271 case frontend::PrintPreamble: 4272 case frontend::PrintPreprocessedInput: 4273 case frontend::RewriteMacros: 4274 case frontend::RunPreprocessorOnly: 4275 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4276 return true; 4277 } 4278 llvm_unreachable("invalid frontend action"); 4279 } 4280 4281 static void GeneratePreprocessorArgs(const PreprocessorOptions &Opts, 4282 ArgumentConsumer Consumer, 4283 const LangOptions &LangOpts, 4284 const FrontendOptions &FrontendOpts, 4285 const CodeGenOptions &CodeGenOpts) { 4286 const PreprocessorOptions *PreprocessorOpts = &Opts; 4287 4288 #define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \ 4289 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4290 #include "clang/Driver/Options.inc" 4291 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4292 4293 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4294 GenerateArg(Consumer, OPT_pch_through_hdrstop_use); 4295 4296 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4297 GenerateArg(Consumer, OPT_error_on_deserialized_pch_decl, D); 4298 4299 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4300 GenerateArg(Consumer, OPT_preamble_bytes_EQ, 4301 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4302 (Opts.PrecompiledPreambleBytes.second ? "1" : "0")); 4303 4304 for (const auto &M : Opts.Macros) { 4305 // Don't generate __CET__ macro definitions. They are implied by the 4306 // -fcf-protection option that is generated elsewhere. 4307 if (M.first == "__CET__=1" && !M.second && 4308 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4309 continue; 4310 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4311 !CodeGenOpts.CFProtectionBranch) 4312 continue; 4313 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4314 CodeGenOpts.CFProtectionBranch) 4315 continue; 4316 4317 GenerateArg(Consumer, M.second ? OPT_U : OPT_D, M.first); 4318 } 4319 4320 for (const auto &I : Opts.Includes) { 4321 // Don't generate OpenCL includes. They are implied by other flags that are 4322 // generated elsewhere. 4323 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4324 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4325 I == "opencl-c.h")) 4326 continue; 4327 // Don't generate HLSL includes. They are implied by other flags that are 4328 // generated elsewhere. 4329 if (LangOpts.HLSL && I == "hlsl.h") 4330 continue; 4331 4332 GenerateArg(Consumer, OPT_include, I); 4333 } 4334 4335 for (const auto &CI : Opts.ChainedIncludes) 4336 GenerateArg(Consumer, OPT_chain_include, CI); 4337 4338 for (const auto &RF : Opts.RemappedFiles) 4339 GenerateArg(Consumer, OPT_remap_file, RF.first + ";" + RF.second); 4340 4341 if (Opts.SourceDateEpoch) 4342 GenerateArg(Consumer, OPT_source_date_epoch, Twine(*Opts.SourceDateEpoch)); 4343 4344 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4345 // generated elsewhere. 4346 } 4347 4348 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4349 DiagnosticsEngine &Diags, 4350 frontend::ActionKind Action, 4351 const FrontendOptions &FrontendOpts) { 4352 unsigned NumErrorsBefore = Diags.getNumErrors(); 4353 4354 PreprocessorOptions *PreprocessorOpts = &Opts; 4355 4356 #define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \ 4357 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4358 #include "clang/Driver/Options.inc" 4359 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4360 4361 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4362 Args.hasArg(OPT_pch_through_hdrstop_use); 4363 4364 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4365 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4366 4367 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4368 StringRef Value(A->getValue()); 4369 size_t Comma = Value.find(','); 4370 unsigned Bytes = 0; 4371 unsigned EndOfLine = 0; 4372 4373 if (Comma == StringRef::npos || 4374 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4375 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4376 Diags.Report(diag::err_drv_preamble_format); 4377 else { 4378 Opts.PrecompiledPreambleBytes.first = Bytes; 4379 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4380 } 4381 } 4382 4383 // Add the __CET__ macro if a CFProtection option is set. 4384 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4385 StringRef Name = A->getValue(); 4386 if (Name == "branch") 4387 Opts.addMacroDef("__CET__=1"); 4388 else if (Name == "return") 4389 Opts.addMacroDef("__CET__=2"); 4390 else if (Name == "full") 4391 Opts.addMacroDef("__CET__=3"); 4392 } 4393 4394 // Add macros from the command line. 4395 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4396 if (A->getOption().matches(OPT_D)) 4397 Opts.addMacroDef(A->getValue()); 4398 else 4399 Opts.addMacroUndef(A->getValue()); 4400 } 4401 4402 // Add the ordered list of -includes. 4403 for (const auto *A : Args.filtered(OPT_include)) 4404 Opts.Includes.emplace_back(A->getValue()); 4405 4406 for (const auto *A : Args.filtered(OPT_chain_include)) 4407 Opts.ChainedIncludes.emplace_back(A->getValue()); 4408 4409 for (const auto *A : Args.filtered(OPT_remap_file)) { 4410 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4411 4412 if (Split.second.empty()) { 4413 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4414 continue; 4415 } 4416 4417 Opts.addRemappedFile(Split.first, Split.second); 4418 } 4419 4420 if (const Arg *A = Args.getLastArg(OPT_source_date_epoch)) { 4421 StringRef Epoch = A->getValue(); 4422 // SOURCE_DATE_EPOCH, if specified, must be a non-negative decimal integer. 4423 // On time64 systems, pick 253402300799 (the UNIX timestamp of 4424 // 9999-12-31T23:59:59Z) as the upper bound. 4425 const uint64_t MaxTimestamp = 4426 std::min<uint64_t>(std::numeric_limits<time_t>::max(), 253402300799); 4427 uint64_t V; 4428 if (Epoch.getAsInteger(10, V) || V > MaxTimestamp) { 4429 Diags.Report(diag::err_fe_invalid_source_date_epoch) 4430 << Epoch << MaxTimestamp; 4431 } else { 4432 Opts.SourceDateEpoch = V; 4433 } 4434 } 4435 4436 // Always avoid lexing editor placeholders when we're just running the 4437 // preprocessor as we never want to emit the 4438 // "editor placeholder in source file" error in PP only mode. 4439 if (isStrictlyPreprocessorAction(Action)) 4440 Opts.LexEditorPlaceholders = false; 4441 4442 return Diags.getNumErrors() == NumErrorsBefore; 4443 } 4444 4445 static void 4446 GeneratePreprocessorOutputArgs(const PreprocessorOutputOptions &Opts, 4447 ArgumentConsumer Consumer, 4448 frontend::ActionKind Action) { 4449 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4450 4451 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 4452 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4453 #include "clang/Driver/Options.inc" 4454 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4455 4456 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4457 if (Generate_dM) 4458 GenerateArg(Consumer, OPT_dM); 4459 if (!Generate_dM && Opts.ShowMacros) 4460 GenerateArg(Consumer, OPT_dD); 4461 if (Opts.DirectivesOnly) 4462 GenerateArg(Consumer, OPT_fdirectives_only); 4463 } 4464 4465 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4466 ArgList &Args, DiagnosticsEngine &Diags, 4467 frontend::ActionKind Action) { 4468 unsigned NumErrorsBefore = Diags.getNumErrors(); 4469 4470 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4471 4472 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \ 4473 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4474 #include "clang/Driver/Options.inc" 4475 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4476 4477 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4478 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4479 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4480 4481 return Diags.getNumErrors() == NumErrorsBefore; 4482 } 4483 4484 static void GenerateTargetArgs(const TargetOptions &Opts, 4485 ArgumentConsumer Consumer) { 4486 const TargetOptions *TargetOpts = &Opts; 4487 #define TARGET_OPTION_WITH_MARSHALLING(...) \ 4488 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__) 4489 #include "clang/Driver/Options.inc" 4490 #undef TARGET_OPTION_WITH_MARSHALLING 4491 4492 if (!Opts.SDKVersion.empty()) 4493 GenerateArg(Consumer, OPT_target_sdk_version_EQ, 4494 Opts.SDKVersion.getAsString()); 4495 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4496 GenerateArg(Consumer, OPT_darwin_target_variant_sdk_version_EQ, 4497 Opts.DarwinTargetVariantSDKVersion.getAsString()); 4498 } 4499 4500 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4501 DiagnosticsEngine &Diags) { 4502 unsigned NumErrorsBefore = Diags.getNumErrors(); 4503 4504 TargetOptions *TargetOpts = &Opts; 4505 4506 #define TARGET_OPTION_WITH_MARSHALLING(...) \ 4507 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__) 4508 #include "clang/Driver/Options.inc" 4509 #undef TARGET_OPTION_WITH_MARSHALLING 4510 4511 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4512 llvm::VersionTuple Version; 4513 if (Version.tryParse(A->getValue())) 4514 Diags.Report(diag::err_drv_invalid_value) 4515 << A->getAsString(Args) << A->getValue(); 4516 else 4517 Opts.SDKVersion = Version; 4518 } 4519 if (Arg *A = 4520 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4521 llvm::VersionTuple Version; 4522 if (Version.tryParse(A->getValue())) 4523 Diags.Report(diag::err_drv_invalid_value) 4524 << A->getAsString(Args) << A->getValue(); 4525 else 4526 Opts.DarwinTargetVariantSDKVersion = Version; 4527 } 4528 4529 return Diags.getNumErrors() == NumErrorsBefore; 4530 } 4531 4532 bool CompilerInvocation::CreateFromArgsImpl( 4533 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4534 DiagnosticsEngine &Diags, const char *Argv0) { 4535 unsigned NumErrorsBefore = Diags.getNumErrors(); 4536 4537 // Parse the arguments. 4538 const OptTable &Opts = getDriverOptTable(); 4539 llvm::opt::Visibility VisibilityMask(options::CC1Option); 4540 unsigned MissingArgIndex, MissingArgCount; 4541 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4542 MissingArgCount, VisibilityMask); 4543 LangOptions &LangOpts = Res.getLangOpts(); 4544 4545 // Check for missing argument error. 4546 if (MissingArgCount) 4547 Diags.Report(diag::err_drv_missing_argument) 4548 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4549 4550 // Issue errors on unknown arguments. 4551 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4552 auto ArgString = A->getAsString(Args); 4553 std::string Nearest; 4554 if (Opts.findNearest(ArgString, Nearest, VisibilityMask) > 1) 4555 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4556 else 4557 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4558 << ArgString << Nearest; 4559 } 4560 4561 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4562 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4563 ParseAnalyzerArgs(Res.getAnalyzerOpts(), Args, Diags); 4564 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4565 /*DefaultDiagColor=*/false); 4566 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4567 // FIXME: We shouldn't have to pass the DashX option around here 4568 InputKind DashX = Res.getFrontendOpts().DashX; 4569 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4570 llvm::Triple T(Res.getTargetOpts().Triple); 4571 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4572 Res.getFileSystemOpts().WorkingDir); 4573 ParseAPINotesArgs(Res.getAPINotesOpts(), Args, Diags); 4574 4575 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4576 Diags); 4577 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4578 LangOpts.ObjCExceptions = 1; 4579 4580 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4581 if (Warning == "misexpect" && 4582 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4583 Res.getCodeGenOpts().MisExpect = true; 4584 } 4585 } 4586 4587 if (LangOpts.CUDA) { 4588 // During CUDA device-side compilation, the aux triple is the 4589 // triple used for host compilation. 4590 if (LangOpts.CUDAIsDevice) 4591 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4592 } 4593 4594 // Set the triple of the host for OpenMP device compile. 4595 if (LangOpts.OpenMPIsTargetDevice) 4596 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4597 4598 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4599 Res.getFrontendOpts().OutputFile, LangOpts); 4600 4601 // FIXME: Override value name discarding when asan or msan is used because the 4602 // backend passes depend on the name of the alloca in order to print out 4603 // names. 4604 Res.getCodeGenOpts().DiscardValueNames &= 4605 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4606 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4607 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4608 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4609 4610 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4611 Res.getFrontendOpts().ProgramAction, 4612 Res.getFrontendOpts()); 4613 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4614 Res.getFrontendOpts().ProgramAction); 4615 4616 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4617 Res.getFrontendOpts().ProgramAction, 4618 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4619 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4620 Res.getDependencyOutputOpts().Targets.empty()) 4621 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4622 4623 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4624 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4625 !Res.getLangOpts().Sanitize.empty()) { 4626 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4627 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4628 } 4629 4630 // Store the command-line for using in the CodeView backend. 4631 if (Res.getCodeGenOpts().CodeViewCommandLine) { 4632 Res.getCodeGenOpts().Argv0 = Argv0; 4633 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4634 } 4635 4636 // Set PGOOptions. Need to create a temporary VFS to read the profile 4637 // to determine the PGO type. 4638 if (!Res.getCodeGenOpts().ProfileInstrumentUsePath.empty()) { 4639 auto FS = 4640 createVFSFromOverlayFiles(Res.getHeaderSearchOpts().VFSOverlayFiles, 4641 Diags, llvm::vfs::getRealFileSystem()); 4642 setPGOUseInstrumentor(Res.getCodeGenOpts(), 4643 Res.getCodeGenOpts().ProfileInstrumentUsePath, *FS, 4644 Diags); 4645 } 4646 4647 FixupInvocation(Res, Diags, Args, DashX); 4648 4649 return Diags.getNumErrors() == NumErrorsBefore; 4650 } 4651 4652 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4653 ArrayRef<const char *> CommandLineArgs, 4654 DiagnosticsEngine &Diags, 4655 const char *Argv0) { 4656 CompilerInvocation DummyInvocation; 4657 4658 return RoundTrip( 4659 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4660 DiagnosticsEngine &Diags, const char *Argv0) { 4661 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4662 }, 4663 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4664 StringAllocator SA) { 4665 Args.push_back("-cc1"); 4666 Invocation.generateCC1CommandLine(Args, SA); 4667 }, 4668 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4669 } 4670 4671 std::string CompilerInvocation::getModuleHash() const { 4672 // FIXME: Consider using SHA1 instead of MD5. 4673 llvm::HashBuilder<llvm::MD5, llvm::endianness::native> HBuilder; 4674 4675 // Note: For QoI reasons, the things we use as a hash here should all be 4676 // dumped via the -module-info flag. 4677 4678 // Start the signature with the compiler version. 4679 HBuilder.add(getClangFullRepositoryVersion()); 4680 4681 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4682 // and getClangFullRepositoryVersion() doesn't include git revision. 4683 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4684 4685 // Extend the signature with the language options 4686 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4687 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4688 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4689 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4690 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4691 #include "clang/Basic/LangOptions.def" 4692 4693 HBuilder.addRange(getLangOpts().ModuleFeatures); 4694 4695 HBuilder.add(getLangOpts().ObjCRuntime); 4696 HBuilder.addRange(getLangOpts().CommentOpts.BlockCommandNames); 4697 4698 // Extend the signature with the target options. 4699 HBuilder.add(getTargetOpts().Triple, getTargetOpts().CPU, 4700 getTargetOpts().TuneCPU, getTargetOpts().ABI); 4701 HBuilder.addRange(getTargetOpts().FeaturesAsWritten); 4702 4703 // Extend the signature with preprocessor options. 4704 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4705 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4706 4707 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4708 for (const auto &Macro : getPreprocessorOpts().Macros) { 4709 // If we're supposed to ignore this macro for the purposes of modules, 4710 // don't put it into the hash. 4711 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4712 // Check whether we're ignoring this macro. 4713 StringRef MacroDef = Macro.first; 4714 if (hsOpts.ModulesIgnoreMacros.count( 4715 llvm::CachedHashString(MacroDef.split('=').first))) 4716 continue; 4717 } 4718 4719 HBuilder.add(Macro); 4720 } 4721 4722 // Extend the signature with the sysroot and other header search options. 4723 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4724 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4725 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4726 hsOpts.ModulesValidateDiagnosticOptions); 4727 HBuilder.add(hsOpts.ResourceDir); 4728 4729 if (hsOpts.ModulesStrictContextHash) { 4730 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4731 HBuilder.addRange(hsOpts.UserEntries); 4732 4733 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4734 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4735 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4736 HBuilder.add(diagOpts.get##Name()); 4737 #include "clang/Basic/DiagnosticOptions.def" 4738 #undef DIAGOPT 4739 #undef ENUM_DIAGOPT 4740 } 4741 4742 // Extend the signature with the user build path. 4743 HBuilder.add(hsOpts.ModuleUserBuildPath); 4744 4745 // Extend the signature with the module file extensions. 4746 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4747 ext->hashExtension(HBuilder); 4748 4749 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4750 // affects the debug info in the PCM. 4751 if (getCodeGenOpts().DebugTypeExtRefs) 4752 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4753 4754 // Extend the signature with the enabled sanitizers, if at least one is 4755 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4756 SanitizerSet SanHash = getLangOpts().Sanitize; 4757 SanHash.clear(getPPTransparentSanitizers()); 4758 if (!SanHash.empty()) 4759 HBuilder.add(SanHash.Mask); 4760 4761 llvm::MD5::MD5Result Result; 4762 HBuilder.getHasher().final(Result); 4763 uint64_t Hash = Result.high() ^ Result.low(); 4764 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4765 } 4766 4767 void CompilerInvocationBase::generateCC1CommandLine( 4768 ArgumentConsumer Consumer) const { 4769 llvm::Triple T(getTargetOpts().Triple); 4770 4771 GenerateFileSystemArgs(getFileSystemOpts(), Consumer); 4772 GenerateMigratorArgs(getMigratorOpts(), Consumer); 4773 GenerateAnalyzerArgs(getAnalyzerOpts(), Consumer); 4774 GenerateDiagnosticArgs(getDiagnosticOpts(), Consumer, 4775 /*DefaultDiagColor=*/false); 4776 GenerateFrontendArgs(getFrontendOpts(), Consumer, getLangOpts().IsHeaderFile); 4777 GenerateTargetArgs(getTargetOpts(), Consumer); 4778 GenerateHeaderSearchArgs(getHeaderSearchOpts(), Consumer); 4779 GenerateLangArgs(getLangOpts(), Consumer, T, getFrontendOpts().DashX); 4780 GenerateCodeGenArgs(getCodeGenOpts(), Consumer, T, 4781 getFrontendOpts().OutputFile, &getLangOpts()); 4782 GeneratePreprocessorArgs(getPreprocessorOpts(), Consumer, getLangOpts(), 4783 getFrontendOpts(), getCodeGenOpts()); 4784 GeneratePreprocessorOutputArgs(getPreprocessorOutputOpts(), Consumer, 4785 getFrontendOpts().ProgramAction); 4786 GenerateDependencyOutputArgs(getDependencyOutputOpts(), Consumer); 4787 } 4788 4789 std::vector<std::string> CompilerInvocationBase::getCC1CommandLine() const { 4790 std::vector<std::string> Args{"-cc1"}; 4791 generateCC1CommandLine( 4792 [&Args](const Twine &Arg) { Args.push_back(Arg.str()); }); 4793 return Args; 4794 } 4795 4796 void CompilerInvocation::resetNonModularOptions() { 4797 getLangOpts().resetNonModularOptions(); 4798 getPreprocessorOpts().resetNonModularOptions(); 4799 } 4800 4801 void CompilerInvocation::clearImplicitModuleBuildOptions() { 4802 getLangOpts().ImplicitModules = false; 4803 getHeaderSearchOpts().ImplicitModuleMaps = false; 4804 getHeaderSearchOpts().ModuleCachePath.clear(); 4805 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false; 4806 getHeaderSearchOpts().BuildSessionTimestamp = 0; 4807 // The specific values we canonicalize to for pruning don't affect behaviour, 4808 /// so use the default values so they may be dropped from the command-line. 4809 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60; 4810 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60; 4811 } 4812 4813 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4814 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4815 DiagnosticsEngine &Diags) { 4816 return createVFSFromCompilerInvocation(CI, Diags, 4817 llvm::vfs::getRealFileSystem()); 4818 } 4819 4820 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4821 clang::createVFSFromCompilerInvocation( 4822 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4823 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4824 return createVFSFromOverlayFiles(CI.getHeaderSearchOpts().VFSOverlayFiles, 4825 Diags, std::move(BaseFS)); 4826 } 4827 4828 IntrusiveRefCntPtr<llvm::vfs::FileSystem> clang::createVFSFromOverlayFiles( 4829 ArrayRef<std::string> VFSOverlayFiles, DiagnosticsEngine &Diags, 4830 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4831 if (VFSOverlayFiles.empty()) 4832 return BaseFS; 4833 4834 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4835 // earlier vfs files are on the bottom 4836 for (const auto &File : VFSOverlayFiles) { 4837 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4838 Result->getBufferForFile(File); 4839 if (!Buffer) { 4840 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4841 continue; 4842 } 4843 4844 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4845 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4846 /*DiagContext*/ nullptr, Result); 4847 if (!FS) { 4848 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4849 continue; 4850 } 4851 4852 Result = FS; 4853 } 4854 return Result; 4855 } 4856