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/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticDriver.h" 18 #include "clang/Basic/DiagnosticOptions.h" 19 #include "clang/Basic/FileSystemOptions.h" 20 #include "clang/Basic/LLVM.h" 21 #include "clang/Basic/LangOptions.h" 22 #include "clang/Basic/LangStandard.h" 23 #include "clang/Basic/ObjCRuntime.h" 24 #include "clang/Basic/Sanitizers.h" 25 #include "clang/Basic/SourceLocation.h" 26 #include "clang/Basic/TargetOptions.h" 27 #include "clang/Basic/Version.h" 28 #include "clang/Basic/Visibility.h" 29 #include "clang/Basic/XRayInstr.h" 30 #include "clang/Config/config.h" 31 #include "clang/Driver/Driver.h" 32 #include "clang/Driver/DriverDiagnostic.h" 33 #include "clang/Driver/Options.h" 34 #include "clang/Frontend/CommandLineSourceLoc.h" 35 #include "clang/Frontend/DependencyOutputOptions.h" 36 #include "clang/Frontend/FrontendDiagnostic.h" 37 #include "clang/Frontend/FrontendOptions.h" 38 #include "clang/Frontend/FrontendPluginRegistry.h" 39 #include "clang/Frontend/MigratorOptions.h" 40 #include "clang/Frontend/PreprocessorOutputOptions.h" 41 #include "clang/Frontend/TextDiagnosticBuffer.h" 42 #include "clang/Frontend/Utils.h" 43 #include "clang/Lex/HeaderSearchOptions.h" 44 #include "clang/Lex/PreprocessorOptions.h" 45 #include "clang/Sema/CodeCompleteOptions.h" 46 #include "clang/Serialization/ASTBitCodes.h" 47 #include "clang/Serialization/ModuleFileExtension.h" 48 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 49 #include "llvm/ADT/APInt.h" 50 #include "llvm/ADT/ArrayRef.h" 51 #include "llvm/ADT/CachedHashString.h" 52 #include "llvm/ADT/DenseSet.h" 53 #include "llvm/ADT/FloatingPointMode.h" 54 #include "llvm/ADT/Hashing.h" 55 #include "llvm/ADT/None.h" 56 #include "llvm/ADT/Optional.h" 57 #include "llvm/ADT/STLExtras.h" 58 #include "llvm/ADT/SmallString.h" 59 #include "llvm/ADT/SmallVector.h" 60 #include "llvm/ADT/StringRef.h" 61 #include "llvm/ADT/StringSwitch.h" 62 #include "llvm/ADT/Triple.h" 63 #include "llvm/ADT/Twine.h" 64 #include "llvm/Config/llvm-config.h" 65 #include "llvm/IR/DebugInfoMetadata.h" 66 #include "llvm/Linker/Linker.h" 67 #include "llvm/MC/MCTargetOptions.h" 68 #include "llvm/Option/Arg.h" 69 #include "llvm/Option/ArgList.h" 70 #include "llvm/Option/OptSpecifier.h" 71 #include "llvm/Option/OptTable.h" 72 #include "llvm/Option/Option.h" 73 #include "llvm/ProfileData/InstrProfReader.h" 74 #include "llvm/Remarks/HotnessThresholdParser.h" 75 #include "llvm/Support/CodeGen.h" 76 #include "llvm/Support/Compiler.h" 77 #include "llvm/Support/Error.h" 78 #include "llvm/Support/ErrorHandling.h" 79 #include "llvm/Support/ErrorOr.h" 80 #include "llvm/Support/FileSystem.h" 81 #include "llvm/Support/HashBuilder.h" 82 #include "llvm/Support/Host.h" 83 #include "llvm/Support/MathExtras.h" 84 #include "llvm/Support/MemoryBuffer.h" 85 #include "llvm/Support/Path.h" 86 #include "llvm/Support/Process.h" 87 #include "llvm/Support/Regex.h" 88 #include "llvm/Support/VersionTuple.h" 89 #include "llvm/Support/VirtualFileSystem.h" 90 #include "llvm/Support/raw_ostream.h" 91 #include "llvm/Target/TargetOptions.h" 92 #include <algorithm> 93 #include <atomic> 94 #include <cassert> 95 #include <cstddef> 96 #include <cstring> 97 #include <memory> 98 #include <string> 99 #include <tuple> 100 #include <type_traits> 101 #include <utility> 102 #include <vector> 103 104 using namespace clang; 105 using namespace driver; 106 using namespace options; 107 using namespace llvm::opt; 108 109 //===----------------------------------------------------------------------===// 110 // Initialization. 111 //===----------------------------------------------------------------------===// 112 113 CompilerInvocationRefBase::CompilerInvocationRefBase() 114 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 115 DiagnosticOpts(new DiagnosticOptions()), 116 HeaderSearchOpts(new HeaderSearchOptions()), 117 PreprocessorOpts(new PreprocessorOptions()), 118 AnalyzerOpts(new AnalyzerOptions()) {} 119 120 CompilerInvocationRefBase::CompilerInvocationRefBase( 121 const CompilerInvocationRefBase &X) 122 : LangOpts(new LangOptions(*X.getLangOpts())), 123 TargetOpts(new TargetOptions(X.getTargetOpts())), 124 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 125 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 126 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 127 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 128 129 CompilerInvocationRefBase::CompilerInvocationRefBase( 130 CompilerInvocationRefBase &&X) = default; 131 132 CompilerInvocationRefBase & 133 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 134 LangOpts.swap(X.LangOpts); 135 TargetOpts.swap(X.TargetOpts); 136 DiagnosticOpts.swap(X.DiagnosticOpts); 137 HeaderSearchOpts.swap(X.HeaderSearchOpts); 138 PreprocessorOpts.swap(X.PreprocessorOpts); 139 AnalyzerOpts.swap(X.AnalyzerOpts); 140 return *this; 141 } 142 143 CompilerInvocationRefBase & 144 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 145 146 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 147 148 //===----------------------------------------------------------------------===// 149 // Normalizers 150 //===----------------------------------------------------------------------===// 151 152 #define SIMPLE_ENUM_VALUE_TABLE 153 #include "clang/Driver/Options.inc" 154 #undef SIMPLE_ENUM_VALUE_TABLE 155 156 static llvm::Optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 157 unsigned TableIndex, 158 const ArgList &Args, 159 DiagnosticsEngine &Diags) { 160 if (Args.hasArg(Opt)) 161 return true; 162 return None; 163 } 164 165 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 166 const ArgList &Args, 167 DiagnosticsEngine &) { 168 if (Args.hasArg(Opt)) 169 return false; 170 return None; 171 } 172 173 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 174 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 175 /// unnecessary template instantiations and just ignore it with a variadic 176 /// argument. 177 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 178 const char *Spelling, 179 CompilerInvocation::StringAllocator, 180 Option::OptionClass, unsigned, /*T*/...) { 181 Args.push_back(Spelling); 182 } 183 184 template <typename T> static constexpr bool is_uint64_t_convertible() { 185 return !std::is_same<T, uint64_t>::value && 186 llvm::is_integral_or_enum<T>::value; 187 } 188 189 template <typename T, 190 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 191 static auto makeFlagToValueNormalizer(T Value) { 192 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 193 DiagnosticsEngine &) -> Optional<T> { 194 if (Args.hasArg(Opt)) 195 return Value; 196 return None; 197 }; 198 } 199 200 template <typename T, 201 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 202 static auto makeFlagToValueNormalizer(T Value) { 203 return makeFlagToValueNormalizer(uint64_t(Value)); 204 } 205 206 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 207 OptSpecifier OtherOpt) { 208 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 209 const ArgList &Args, 210 DiagnosticsEngine &) -> Optional<bool> { 211 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 212 return A->getOption().matches(Opt) ? Value : OtherValue; 213 } 214 return None; 215 }; 216 } 217 218 static auto makeBooleanOptionDenormalizer(bool Value) { 219 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 220 CompilerInvocation::StringAllocator, Option::OptionClass, 221 unsigned, bool KeyPath) { 222 if (KeyPath == Value) 223 Args.push_back(Spelling); 224 }; 225 } 226 227 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 228 const char *Spelling, 229 CompilerInvocation::StringAllocator SA, 230 Option::OptionClass OptClass, unsigned, 231 const Twine &Value) { 232 switch (OptClass) { 233 case Option::SeparateClass: 234 case Option::JoinedOrSeparateClass: 235 case Option::JoinedAndSeparateClass: 236 Args.push_back(Spelling); 237 Args.push_back(SA(Value)); 238 break; 239 case Option::JoinedClass: 240 case Option::CommaJoinedClass: 241 Args.push_back(SA(Twine(Spelling) + Value)); 242 break; 243 default: 244 llvm_unreachable("Cannot denormalize an option with option class " 245 "incompatible with string denormalization."); 246 } 247 } 248 249 template <typename T> 250 static void 251 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 252 CompilerInvocation::StringAllocator SA, 253 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 254 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 255 } 256 257 static Optional<SimpleEnumValue> 258 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 259 for (int I = 0, E = Table.Size; I != E; ++I) 260 if (Name == Table.Table[I].Name) 261 return Table.Table[I]; 262 263 return None; 264 } 265 266 static Optional<SimpleEnumValue> 267 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 268 for (int I = 0, E = Table.Size; I != E; ++I) 269 if (Value == Table.Table[I].Value) 270 return Table.Table[I]; 271 272 return None; 273 } 274 275 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 276 unsigned TableIndex, 277 const ArgList &Args, 278 DiagnosticsEngine &Diags) { 279 assert(TableIndex < SimpleEnumValueTablesSize); 280 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 281 282 auto *Arg = Args.getLastArg(Opt); 283 if (!Arg) 284 return None; 285 286 StringRef ArgValue = Arg->getValue(); 287 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 288 return MaybeEnumVal->Value; 289 290 Diags.Report(diag::err_drv_invalid_value) 291 << Arg->getAsString(Args) << ArgValue; 292 return None; 293 } 294 295 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 296 const char *Spelling, 297 CompilerInvocation::StringAllocator SA, 298 Option::OptionClass OptClass, 299 unsigned TableIndex, unsigned Value) { 300 assert(TableIndex < SimpleEnumValueTablesSize); 301 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 302 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 303 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 304 MaybeEnumVal->Name); 305 } else { 306 llvm_unreachable("The simple enum value was not correctly defined in " 307 "the tablegen option description"); 308 } 309 } 310 311 template <typename T> 312 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 313 const char *Spelling, 314 CompilerInvocation::StringAllocator SA, 315 Option::OptionClass OptClass, 316 unsigned TableIndex, T Value) { 317 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 318 static_cast<unsigned>(Value)); 319 } 320 321 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 322 const ArgList &Args, 323 DiagnosticsEngine &Diags) { 324 auto *Arg = Args.getLastArg(Opt); 325 if (!Arg) 326 return None; 327 return std::string(Arg->getValue()); 328 } 329 330 template <typename IntTy> 331 static Optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 332 const ArgList &Args, 333 DiagnosticsEngine &Diags) { 334 auto *Arg = Args.getLastArg(Opt); 335 if (!Arg) 336 return None; 337 IntTy Res; 338 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 339 Diags.Report(diag::err_drv_invalid_int_value) 340 << Arg->getAsString(Args) << Arg->getValue(); 341 return None; 342 } 343 return Res; 344 } 345 346 static Optional<std::vector<std::string>> 347 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 348 DiagnosticsEngine &) { 349 return Args.getAllArgValues(Opt); 350 } 351 352 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 353 const char *Spelling, 354 CompilerInvocation::StringAllocator SA, 355 Option::OptionClass OptClass, 356 unsigned TableIndex, 357 const std::vector<std::string> &Values) { 358 switch (OptClass) { 359 case Option::CommaJoinedClass: { 360 std::string CommaJoinedValue; 361 if (!Values.empty()) { 362 CommaJoinedValue.append(Values.front()); 363 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 364 CommaJoinedValue.append(","); 365 CommaJoinedValue.append(Value); 366 } 367 } 368 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 369 TableIndex, CommaJoinedValue); 370 break; 371 } 372 case Option::JoinedClass: 373 case Option::SeparateClass: 374 case Option::JoinedOrSeparateClass: 375 for (const std::string &Value : Values) 376 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 377 break; 378 default: 379 llvm_unreachable("Cannot denormalize an option with option class " 380 "incompatible with string vector denormalization."); 381 } 382 } 383 384 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 385 const ArgList &Args, 386 DiagnosticsEngine &Diags) { 387 auto *Arg = Args.getLastArg(Opt); 388 if (!Arg) 389 return None; 390 return llvm::Triple::normalize(Arg->getValue()); 391 } 392 393 template <typename T, typename U> 394 static T mergeForwardValue(T KeyPath, U Value) { 395 return static_cast<T>(Value); 396 } 397 398 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 399 return KeyPath | Value; 400 } 401 402 template <typename T> static T extractForwardValue(T KeyPath) { 403 return KeyPath; 404 } 405 406 template <typename T, typename U, U Value> 407 static T extractMaskValue(T KeyPath) { 408 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 409 } 410 411 #define PARSE_OPTION_WITH_MARSHALLING( \ 412 ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 413 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) \ 414 if ((FLAGS)&options::CC1Option) { \ 415 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 416 if (IMPLIED_CHECK) \ 417 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 418 if (SHOULD_PARSE) \ 419 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 420 KEYPATH = \ 421 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 422 } 423 424 // Capture the extracted value as a lambda argument to avoid potential issues 425 // with lifetime extension of the reference. 426 #define GENERATE_OPTION_WITH_MARSHALLING( \ 427 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 428 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 429 TABLE_INDEX) \ 430 if ((FLAGS)&options::CC1Option) { \ 431 [&](const auto &Extracted) { \ 432 if (ALWAYS_EMIT || \ 433 (Extracted != \ 434 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 435 : (DEFAULT_VALUE)))) \ 436 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 437 TABLE_INDEX, Extracted); \ 438 }(EXTRACTOR(KEYPATH)); \ 439 } 440 441 static const StringRef GetInputKindName(InputKind IK); 442 443 static bool FixupInvocation(CompilerInvocation &Invocation, 444 DiagnosticsEngine &Diags, const ArgList &Args, 445 InputKind IK) { 446 unsigned NumErrorsBefore = Diags.getNumErrors(); 447 448 LangOptions &LangOpts = *Invocation.getLangOpts(); 449 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 450 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 451 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 452 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 453 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 454 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 455 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 456 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 457 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 458 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 459 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 460 LangOpts.CurrentModule = LangOpts.ModuleName; 461 462 llvm::Triple T(TargetOpts.Triple); 463 llvm::Triple::ArchType Arch = T.getArch(); 464 465 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 466 467 if (LangOpts.getExceptionHandling() != 468 LangOptions::ExceptionHandlingKind::None && 469 T.isWindowsMSVCEnvironment()) 470 Diags.Report(diag::err_fe_invalid_exception_model) 471 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 472 473 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 474 Diags.Report(diag::warn_c_kext); 475 476 if (Args.hasArg(OPT_fconcepts_ts)) 477 Diags.Report(diag::warn_fe_concepts_ts_flag); 478 479 if (LangOpts.NewAlignOverride && 480 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 481 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 482 Diags.Report(diag::err_fe_invalid_alignment) 483 << A->getAsString(Args) << A->getValue(); 484 LangOpts.NewAlignOverride = 0; 485 } 486 487 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 488 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 489 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 490 << "-fsycl-is-host"; 491 492 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 493 Diags.Report(diag::err_drv_argument_not_allowed_with) 494 << "-fgnu89-inline" << GetInputKindName(IK); 495 496 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 497 Diags.Report(diag::warn_ignored_hip_only_option) 498 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 499 500 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 501 Diags.Report(diag::warn_ignored_hip_only_option) 502 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 503 504 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 505 // This option should be deprecated for CL > 1.0 because 506 // this option was added for compatibility with OpenCL 1.0. 507 if (Args.getLastArg(OPT_cl_strict_aliasing) && 508 (LangOpts.getOpenCLCompatibleVersion() > 100)) 509 Diags.Report(diag::warn_option_invalid_ocl_version) 510 << LangOpts.getOpenCLVersionString() 511 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 512 513 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 514 auto DefaultCC = LangOpts.getDefaultCallingConv(); 515 516 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 517 DefaultCC == LangOptions::DCC_StdCall) && 518 Arch != llvm::Triple::x86; 519 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 520 DefaultCC == LangOptions::DCC_RegCall) && 521 !T.isX86(); 522 if (emitError) 523 Diags.Report(diag::err_drv_argument_not_allowed_with) 524 << A->getSpelling() << T.getTriple(); 525 } 526 527 if (!CodeGenOpts.ProfileRemappingFile.empty() && CodeGenOpts.LegacyPassManager) 528 Diags.Report(diag::err_drv_argument_only_allowed_with) 529 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 530 << "-fno-legacy-pass-manager"; 531 532 return Diags.getNumErrors() == NumErrorsBefore; 533 } 534 535 //===----------------------------------------------------------------------===// 536 // Deserialization (from args) 537 //===----------------------------------------------------------------------===// 538 539 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 540 DiagnosticsEngine &Diags) { 541 unsigned DefaultOpt = llvm::CodeGenOpt::None; 542 if ((IK.getLanguage() == Language::OpenCL || 543 IK.getLanguage() == Language::OpenCLCXX) && 544 !Args.hasArg(OPT_cl_opt_disable)) 545 DefaultOpt = llvm::CodeGenOpt::Default; 546 547 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 548 if (A->getOption().matches(options::OPT_O0)) 549 return llvm::CodeGenOpt::None; 550 551 if (A->getOption().matches(options::OPT_Ofast)) 552 return llvm::CodeGenOpt::Aggressive; 553 554 assert(A->getOption().matches(options::OPT_O)); 555 556 StringRef S(A->getValue()); 557 if (S == "s" || S == "z") 558 return llvm::CodeGenOpt::Default; 559 560 if (S == "g") 561 return llvm::CodeGenOpt::Less; 562 563 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 564 } 565 566 return DefaultOpt; 567 } 568 569 static unsigned getOptimizationLevelSize(ArgList &Args) { 570 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 571 if (A->getOption().matches(options::OPT_O)) { 572 switch (A->getValue()[0]) { 573 default: 574 return 0; 575 case 's': 576 return 1; 577 case 'z': 578 return 2; 579 } 580 } 581 } 582 return 0; 583 } 584 585 static void GenerateArg(SmallVectorImpl<const char *> &Args, 586 llvm::opt::OptSpecifier OptSpecifier, 587 CompilerInvocation::StringAllocator SA) { 588 Option Opt = getDriverOptTable().getOption(OptSpecifier); 589 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 590 Option::OptionClass::FlagClass, 0); 591 } 592 593 static void GenerateArg(SmallVectorImpl<const char *> &Args, 594 llvm::opt::OptSpecifier OptSpecifier, 595 const Twine &Value, 596 CompilerInvocation::StringAllocator SA) { 597 Option Opt = getDriverOptTable().getOption(OptSpecifier); 598 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 599 Opt.getKind(), 0, Value); 600 } 601 602 // Parse command line arguments into CompilerInvocation. 603 using ParseFn = 604 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 605 DiagnosticsEngine &, const char *)>; 606 607 // Generate command line arguments from CompilerInvocation. 608 using GenerateFn = llvm::function_ref<void( 609 CompilerInvocation &, SmallVectorImpl<const char *> &, 610 CompilerInvocation::StringAllocator)>; 611 612 // May perform round-trip of command line arguments. By default, the round-trip 613 // is enabled if CLANG_ROUND_TRIP_CC1_ARGS was defined during build. This can be 614 // overwritten at run-time via the "-round-trip-args" and "-no-round-trip-args" 615 // command line flags. 616 // During round-trip, the command line arguments are parsed into a dummy 617 // instance of CompilerInvocation which is used to generate the command line 618 // arguments again. The real CompilerInvocation instance is then created by 619 // parsing the generated arguments, not the original ones. 620 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 621 CompilerInvocation &RealInvocation, 622 CompilerInvocation &DummyInvocation, 623 ArrayRef<const char *> CommandLineArgs, 624 DiagnosticsEngine &Diags, const char *Argv0) { 625 // FIXME: Switch to '#ifndef NDEBUG' when possible. 626 #ifdef CLANG_ROUND_TRIP_CC1_ARGS 627 bool DoRoundTripDefault = true; 628 #else 629 bool DoRoundTripDefault = false; 630 #endif 631 632 bool DoRoundTrip = DoRoundTripDefault; 633 for (const auto *Arg : CommandLineArgs) { 634 if (Arg == StringRef("-round-trip-args")) 635 DoRoundTrip = true; 636 if (Arg == StringRef("-no-round-trip-args")) 637 DoRoundTrip = false; 638 } 639 640 // If round-trip was not requested, simply run the parser with the real 641 // invocation diagnostics. 642 if (!DoRoundTrip) 643 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 644 645 // Serializes quoted (and potentially escaped) arguments. 646 auto SerializeArgs = [](ArrayRef<const char *> Args) { 647 std::string Buffer; 648 llvm::raw_string_ostream OS(Buffer); 649 for (const char *Arg : Args) { 650 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 651 OS << ' '; 652 } 653 OS.flush(); 654 return Buffer; 655 }; 656 657 // Setup a dummy DiagnosticsEngine. 658 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 659 DummyDiags.setClient(new TextDiagnosticBuffer()); 660 661 // Run the first parse on the original arguments with the dummy invocation and 662 // diagnostics. 663 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 664 DummyDiags.getNumWarnings() != 0) { 665 // If the first parse did not succeed, it must be user mistake (invalid 666 // command line arguments). We won't be able to generate arguments that 667 // would reproduce the same result. Let's fail again with the real 668 // invocation and diagnostics, so all side-effects of parsing are visible. 669 unsigned NumWarningsBefore = Diags.getNumWarnings(); 670 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 671 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 672 return Success; 673 674 // Parse with original options and diagnostics succeeded even though it 675 // shouldn't have. Something is off. 676 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 677 Diags.Report(diag::note_cc1_round_trip_original) 678 << SerializeArgs(CommandLineArgs); 679 return false; 680 } 681 682 // Setup string allocator. 683 llvm::BumpPtrAllocator Alloc; 684 llvm::StringSaver StringPool(Alloc); 685 auto SA = [&StringPool](const Twine &Arg) { 686 return StringPool.save(Arg).data(); 687 }; 688 689 // Generate arguments from the dummy invocation. If Generate is the 690 // inverse of Parse, the newly generated arguments must have the same 691 // semantics as the original. 692 SmallVector<const char *> GeneratedArgs1; 693 Generate(DummyInvocation, GeneratedArgs1, SA); 694 695 // Run the second parse, now on the generated arguments, and with the real 696 // invocation and diagnostics. The result is what we will end up using for the 697 // rest of compilation, so if Generate is not inverse of Parse, something down 698 // the line will break. 699 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 700 701 // The first parse on original arguments succeeded, but second parse of 702 // generated arguments failed. Something must be wrong with the generator. 703 if (!Success2) { 704 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 705 Diags.Report(diag::note_cc1_round_trip_generated) 706 << 1 << SerializeArgs(GeneratedArgs1); 707 return false; 708 } 709 710 // Generate arguments again, this time from the options we will end up using 711 // for the rest of the compilation. 712 SmallVector<const char *> GeneratedArgs2; 713 Generate(RealInvocation, GeneratedArgs2, SA); 714 715 // Compares two lists of generated arguments. 716 auto Equal = [](const ArrayRef<const char *> A, 717 const ArrayRef<const char *> B) { 718 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 719 [](const char *AElem, const char *BElem) { 720 return StringRef(AElem) == StringRef(BElem); 721 }); 722 }; 723 724 // If we generated different arguments from what we assume are two 725 // semantically equivalent CompilerInvocations, the Generate function may 726 // be non-deterministic. 727 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 728 Diags.Report(diag::err_cc1_round_trip_mismatch); 729 Diags.Report(diag::note_cc1_round_trip_generated) 730 << 1 << SerializeArgs(GeneratedArgs1); 731 Diags.Report(diag::note_cc1_round_trip_generated) 732 << 2 << SerializeArgs(GeneratedArgs2); 733 return false; 734 } 735 736 Diags.Report(diag::remark_cc1_round_trip_generated) 737 << 1 << SerializeArgs(GeneratedArgs1); 738 Diags.Report(diag::remark_cc1_round_trip_generated) 739 << 2 << SerializeArgs(GeneratedArgs2); 740 741 return Success2; 742 } 743 744 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 745 OptSpecifier GroupWithValue, 746 std::vector<std::string> &Diagnostics) { 747 for (auto *A : Args.filtered(Group)) { 748 if (A->getOption().getKind() == Option::FlagClass) { 749 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 750 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 751 Diagnostics.push_back( 752 std::string(A->getOption().getName().drop_front(1))); 753 } else if (A->getOption().matches(GroupWithValue)) { 754 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 755 // group. Add only the group name to the diagnostics. 756 Diagnostics.push_back( 757 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 758 } else { 759 // Otherwise, add its value (for OPT_W_Joined and similar). 760 Diagnostics.push_back(A->getValue()); 761 } 762 } 763 } 764 765 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 766 // it won't verify the input. 767 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 768 DiagnosticsEngine *Diags); 769 770 static void getAllNoBuiltinFuncValues(ArgList &Args, 771 std::vector<std::string> &Funcs) { 772 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 773 auto BuiltinEnd = llvm::partition(Values, [](const std::string FuncName) { 774 return Builtin::Context::isBuiltinFunc(FuncName); 775 }); 776 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 777 } 778 779 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 780 SmallVectorImpl<const char *> &Args, 781 CompilerInvocation::StringAllocator SA) { 782 const AnalyzerOptions *AnalyzerOpts = &Opts; 783 784 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 785 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 786 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 787 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 788 MERGER, EXTRACTOR, TABLE_INDEX) \ 789 GENERATE_OPTION_WITH_MARSHALLING( \ 790 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 791 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 792 #include "clang/Driver/Options.inc" 793 #undef ANALYZER_OPTION_WITH_MARSHALLING 794 795 if (Opts.AnalysisStoreOpt != RegionStoreModel) { 796 switch (Opts.AnalysisStoreOpt) { 797 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 798 case NAME##Model: \ 799 GenerateArg(Args, OPT_analyzer_store, CMDFLAG, SA); \ 800 break; 801 #include "clang/StaticAnalyzer/Core/Analyses.def" 802 default: 803 llvm_unreachable("Tried to generate unknown analysis store."); 804 } 805 } 806 807 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 808 switch (Opts.AnalysisConstraintsOpt) { 809 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 810 case NAME##Model: \ 811 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 812 break; 813 #include "clang/StaticAnalyzer/Core/Analyses.def" 814 default: 815 llvm_unreachable("Tried to generate unknown analysis constraint."); 816 } 817 } 818 819 if (Opts.AnalysisDiagOpt != PD_HTML) { 820 switch (Opts.AnalysisDiagOpt) { 821 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 822 case PD_##NAME: \ 823 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 824 break; 825 #include "clang/StaticAnalyzer/Core/Analyses.def" 826 default: 827 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 828 } 829 } 830 831 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 832 switch (Opts.AnalysisPurgeOpt) { 833 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 834 case NAME: \ 835 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 836 break; 837 #include "clang/StaticAnalyzer/Core/Analyses.def" 838 default: 839 llvm_unreachable("Tried to generate unknown analysis purge mode."); 840 } 841 } 842 843 if (Opts.InliningMode != NoRedundancy) { 844 switch (Opts.InliningMode) { 845 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 846 case NAME: \ 847 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 848 break; 849 #include "clang/StaticAnalyzer/Core/Analyses.def" 850 default: 851 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 852 } 853 } 854 855 for (const auto &CP : Opts.CheckersAndPackages) { 856 OptSpecifier Opt = 857 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 858 GenerateArg(Args, Opt, CP.first, SA); 859 } 860 861 AnalyzerOptions ConfigOpts; 862 parseAnalyzerConfigs(ConfigOpts, nullptr); 863 864 for (const auto &C : Opts.Config) { 865 // Don't generate anything that came from parseAnalyzerConfigs. It would be 866 // redundant and may not be valid on the command line. 867 auto Entry = ConfigOpts.Config.find(C.getKey()); 868 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 869 continue; 870 871 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 872 } 873 874 // Nothing to generate for FullCompilerInvocation. 875 } 876 877 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 878 DiagnosticsEngine &Diags) { 879 unsigned NumErrorsBefore = Diags.getNumErrors(); 880 881 AnalyzerOptions *AnalyzerOpts = &Opts; 882 883 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 884 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 885 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 886 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 887 MERGER, EXTRACTOR, TABLE_INDEX) \ 888 PARSE_OPTION_WITH_MARSHALLING( \ 889 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 890 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 891 #include "clang/Driver/Options.inc" 892 #undef ANALYZER_OPTION_WITH_MARSHALLING 893 894 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 895 StringRef Name = A->getValue(); 896 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 897 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 898 .Case(CMDFLAG, NAME##Model) 899 #include "clang/StaticAnalyzer/Core/Analyses.def" 900 .Default(NumStores); 901 if (Value == NumStores) { 902 Diags.Report(diag::err_drv_invalid_value) 903 << A->getAsString(Args) << Name; 904 } else { 905 Opts.AnalysisStoreOpt = Value; 906 } 907 } 908 909 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 910 StringRef Name = A->getValue(); 911 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 912 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 913 .Case(CMDFLAG, NAME##Model) 914 #include "clang/StaticAnalyzer/Core/Analyses.def" 915 .Default(NumConstraints); 916 if (Value == NumConstraints) { 917 Diags.Report(diag::err_drv_invalid_value) 918 << A->getAsString(Args) << Name; 919 } else { 920 Opts.AnalysisConstraintsOpt = Value; 921 } 922 } 923 924 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 925 StringRef Name = A->getValue(); 926 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 927 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 928 .Case(CMDFLAG, PD_##NAME) 929 #include "clang/StaticAnalyzer/Core/Analyses.def" 930 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 931 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 932 Diags.Report(diag::err_drv_invalid_value) 933 << A->getAsString(Args) << Name; 934 } else { 935 Opts.AnalysisDiagOpt = Value; 936 } 937 } 938 939 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 940 StringRef Name = A->getValue(); 941 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 942 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 943 .Case(CMDFLAG, NAME) 944 #include "clang/StaticAnalyzer/Core/Analyses.def" 945 .Default(NumPurgeModes); 946 if (Value == NumPurgeModes) { 947 Diags.Report(diag::err_drv_invalid_value) 948 << A->getAsString(Args) << Name; 949 } else { 950 Opts.AnalysisPurgeOpt = Value; 951 } 952 } 953 954 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 955 StringRef Name = A->getValue(); 956 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 957 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 958 .Case(CMDFLAG, NAME) 959 #include "clang/StaticAnalyzer/Core/Analyses.def" 960 .Default(NumInliningModes); 961 if (Value == NumInliningModes) { 962 Diags.Report(diag::err_drv_invalid_value) 963 << A->getAsString(Args) << Name; 964 } else { 965 Opts.InliningMode = Value; 966 } 967 } 968 969 Opts.CheckersAndPackages.clear(); 970 for (const Arg *A : 971 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 972 A->claim(); 973 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 974 // We can have a list of comma separated checker names, e.g: 975 // '-analyzer-checker=cocoa,unix' 976 StringRef CheckerAndPackageList = A->getValue(); 977 SmallVector<StringRef, 16> CheckersAndPackages; 978 CheckerAndPackageList.split(CheckersAndPackages, ","); 979 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 980 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 981 IsEnabled); 982 } 983 984 // Go through the analyzer configuration options. 985 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 986 987 // We can have a list of comma separated config names, e.g: 988 // '-analyzer-config key1=val1,key2=val2' 989 StringRef configList = A->getValue(); 990 SmallVector<StringRef, 4> configVals; 991 configList.split(configVals, ","); 992 for (const auto &configVal : configVals) { 993 StringRef key, val; 994 std::tie(key, val) = configVal.split("="); 995 if (val.empty()) { 996 Diags.Report(SourceLocation(), 997 diag::err_analyzer_config_no_value) << configVal; 998 break; 999 } 1000 if (val.find('=') != StringRef::npos) { 1001 Diags.Report(SourceLocation(), 1002 diag::err_analyzer_config_multiple_values) 1003 << configVal; 1004 break; 1005 } 1006 1007 // TODO: Check checker options too, possibly in CheckerRegistry. 1008 // Leave unknown non-checker configs unclaimed. 1009 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1010 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1011 Diags.Report(diag::err_analyzer_config_unknown) << key; 1012 continue; 1013 } 1014 1015 A->claim(); 1016 Opts.Config[key] = std::string(val); 1017 } 1018 } 1019 1020 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1021 parseAnalyzerConfigs(Opts, &Diags); 1022 else 1023 parseAnalyzerConfigs(Opts, nullptr); 1024 1025 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1026 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1027 if (i != 0) 1028 os << " "; 1029 os << Args.getArgString(i); 1030 } 1031 os.flush(); 1032 1033 return Diags.getNumErrors() == NumErrorsBefore; 1034 } 1035 1036 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1037 StringRef OptionName, StringRef DefaultVal) { 1038 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1039 } 1040 1041 static void initOption(AnalyzerOptions::ConfigTable &Config, 1042 DiagnosticsEngine *Diags, 1043 StringRef &OptionField, StringRef Name, 1044 StringRef DefaultVal) { 1045 // String options may be known to invalid (e.g. if the expected string is a 1046 // file name, but the file does not exist), those will have to be checked in 1047 // parseConfigs. 1048 OptionField = getStringOption(Config, Name, DefaultVal); 1049 } 1050 1051 static void initOption(AnalyzerOptions::ConfigTable &Config, 1052 DiagnosticsEngine *Diags, 1053 bool &OptionField, StringRef Name, bool DefaultVal) { 1054 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1055 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1056 .Case("true", true) 1057 .Case("false", false) 1058 .Default(None); 1059 1060 if (!PossiblyInvalidVal) { 1061 if (Diags) 1062 Diags->Report(diag::err_analyzer_config_invalid_input) 1063 << Name << "a boolean"; 1064 else 1065 OptionField = DefaultVal; 1066 } else 1067 OptionField = PossiblyInvalidVal.getValue(); 1068 } 1069 1070 static void initOption(AnalyzerOptions::ConfigTable &Config, 1071 DiagnosticsEngine *Diags, 1072 unsigned &OptionField, StringRef Name, 1073 unsigned DefaultVal) { 1074 1075 OptionField = DefaultVal; 1076 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1077 .getAsInteger(0, OptionField); 1078 if (Diags && HasFailed) 1079 Diags->Report(diag::err_analyzer_config_invalid_input) 1080 << Name << "an unsigned"; 1081 } 1082 1083 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1084 DiagnosticsEngine *Diags) { 1085 // TODO: There's no need to store the entire configtable, it'd be plenty 1086 // enough tostore checker options. 1087 1088 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1089 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1090 1091 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1092 SHALLOW_VAL, DEEP_VAL) \ 1093 switch (AnOpts.getUserMode()) { \ 1094 case UMK_Shallow: \ 1095 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 1096 break; \ 1097 case UMK_Deep: \ 1098 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 1099 break; \ 1100 } \ 1101 1102 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1103 #undef ANALYZER_OPTION 1104 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 1105 1106 // At this point, AnalyzerOptions is configured. Let's validate some options. 1107 1108 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1109 // The current approach only validates the registered checkers which does not 1110 // contain the runtime enabled checkers and optimally we would validate both. 1111 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1112 std::vector<StringRef> Checkers = 1113 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1114 std::vector<StringRef> Packages = 1115 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1116 1117 SmallVector<StringRef, 16> CheckersAndPackages; 1118 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1119 1120 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1121 if (Diags) { 1122 bool IsChecker = CheckerOrPackage.contains('.'); 1123 bool IsValidName = 1124 IsChecker 1125 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 1126 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 1127 1128 if (!IsValidName) 1129 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1130 << CheckerOrPackage; 1131 } 1132 1133 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1134 } 1135 } 1136 1137 if (!Diags) 1138 return; 1139 1140 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1141 Diags->Report(diag::err_analyzer_config_invalid_input) 1142 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1143 1144 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1145 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1146 << "a filename"; 1147 1148 if (!AnOpts.ModelPath.empty() && 1149 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1150 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1151 << "a filename"; 1152 } 1153 1154 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1155 static void 1156 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1157 CompilerInvocation::StringAllocator SA, 1158 OptSpecifier OptEQ, StringRef Name, 1159 const CodeGenOptions::OptRemark &Remark) { 1160 if (Remark.hasValidPattern()) { 1161 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1162 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1163 GenerateArg(Args, OPT_R_Joined, Name, SA); 1164 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1165 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1166 } 1167 } 1168 1169 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1170 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1171 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1172 static CodeGenOptions::OptRemark 1173 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1174 OptSpecifier OptEQ, StringRef Name) { 1175 CodeGenOptions::OptRemark Result; 1176 1177 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A) { 1178 Result.Pattern = A->getValue(); 1179 1180 std::string RegexError; 1181 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1182 if (!Result.Regex->isValid(RegexError)) { 1183 Diags.Report(diag::err_drv_optimization_remark_pattern) 1184 << RegexError << A->getAsString(Args); 1185 return false; 1186 } 1187 1188 return true; 1189 }; 1190 1191 for (Arg *A : Args) { 1192 if (A->getOption().matches(OPT_R_Joined)) { 1193 StringRef Value = A->getValue(); 1194 1195 if (Value == Name) 1196 Result.Kind = CodeGenOptions::RK_Enabled; 1197 else if (Value == "everything") 1198 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1199 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1200 Result.Kind = CodeGenOptions::RK_Disabled; 1201 else if (Value == "no-everything") 1202 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1203 } else if (A->getOption().matches(OptEQ)) { 1204 Result.Kind = CodeGenOptions::RK_WithPattern; 1205 if (!InitializeResultPattern(A)) 1206 return CodeGenOptions::OptRemark(); 1207 } 1208 } 1209 1210 if (Result.Kind == CodeGenOptions::RK_Disabled || 1211 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1212 Result.Pattern = ""; 1213 Result.Regex = nullptr; 1214 } 1215 1216 return Result; 1217 } 1218 1219 static bool parseDiagnosticLevelMask(StringRef FlagName, 1220 const std::vector<std::string> &Levels, 1221 DiagnosticsEngine &Diags, 1222 DiagnosticLevelMask &M) { 1223 bool Success = true; 1224 for (const auto &Level : Levels) { 1225 DiagnosticLevelMask const PM = 1226 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1227 .Case("note", DiagnosticLevelMask::Note) 1228 .Case("remark", DiagnosticLevelMask::Remark) 1229 .Case("warning", DiagnosticLevelMask::Warning) 1230 .Case("error", DiagnosticLevelMask::Error) 1231 .Default(DiagnosticLevelMask::None); 1232 if (PM == DiagnosticLevelMask::None) { 1233 Success = false; 1234 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1235 } 1236 M = M | PM; 1237 } 1238 return Success; 1239 } 1240 1241 static void parseSanitizerKinds(StringRef FlagName, 1242 const std::vector<std::string> &Sanitizers, 1243 DiagnosticsEngine &Diags, SanitizerSet &S) { 1244 for (const auto &Sanitizer : Sanitizers) { 1245 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1246 if (K == SanitizerMask()) 1247 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1248 else 1249 S.set(K, true); 1250 } 1251 } 1252 1253 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1254 SmallVector<StringRef, 4> Values; 1255 serializeSanitizerSet(S, Values); 1256 return Values; 1257 } 1258 1259 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1260 ArgList &Args, DiagnosticsEngine &D, 1261 XRayInstrSet &S) { 1262 llvm::SmallVector<StringRef, 2> BundleParts; 1263 llvm::SplitString(Bundle, BundleParts, ","); 1264 for (const auto &B : BundleParts) { 1265 auto Mask = parseXRayInstrValue(B); 1266 if (Mask == XRayInstrKind::None) 1267 if (B != "none") 1268 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1269 else 1270 S.Mask = Mask; 1271 else if (Mask == XRayInstrKind::All) 1272 S.Mask = Mask; 1273 else 1274 S.set(Mask, true); 1275 } 1276 } 1277 1278 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1279 llvm::SmallVector<StringRef, 2> BundleParts; 1280 serializeXRayInstrValue(S, BundleParts); 1281 std::string Buffer; 1282 llvm::raw_string_ostream OS(Buffer); 1283 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1284 return OS.str(); 1285 } 1286 1287 // Set the profile kind using fprofile-instrument-use-path. 1288 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1289 const Twine &ProfileName) { 1290 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1291 // In error, return silently and let Clang PGOUse report the error message. 1292 if (auto E = ReaderOrErr.takeError()) { 1293 llvm::consumeError(std::move(E)); 1294 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1295 return; 1296 } 1297 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1298 std::move(ReaderOrErr.get()); 1299 if (PGOReader->isIRLevelProfile()) { 1300 if (PGOReader->hasCSIRLevelProfile()) 1301 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1302 else 1303 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1304 } else 1305 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1306 } 1307 1308 void CompilerInvocation::GenerateCodeGenArgs( 1309 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1310 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1311 const LangOptions *LangOpts) { 1312 const CodeGenOptions &CodeGenOpts = Opts; 1313 1314 if (Opts.OptimizationLevel == 0) 1315 GenerateArg(Args, OPT_O0, SA); 1316 else 1317 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1318 1319 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1320 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1321 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1322 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1323 MERGER, EXTRACTOR, TABLE_INDEX) \ 1324 GENERATE_OPTION_WITH_MARSHALLING( \ 1325 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1326 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1327 #include "clang/Driver/Options.inc" 1328 #undef CODEGEN_OPTION_WITH_MARSHALLING 1329 1330 if (Opts.OptimizationLevel > 0) { 1331 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1332 GenerateArg(Args, OPT_finline_functions, SA); 1333 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1334 GenerateArg(Args, OPT_finline_hint_functions, SA); 1335 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1336 GenerateArg(Args, OPT_fno_inline, SA); 1337 } 1338 1339 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1340 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1341 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1342 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1343 1344 Optional<StringRef> DebugInfoVal; 1345 switch (Opts.DebugInfo) { 1346 case codegenoptions::DebugLineTablesOnly: 1347 DebugInfoVal = "line-tables-only"; 1348 break; 1349 case codegenoptions::DebugDirectivesOnly: 1350 DebugInfoVal = "line-directives-only"; 1351 break; 1352 case codegenoptions::DebugInfoConstructor: 1353 DebugInfoVal = "constructor"; 1354 break; 1355 case codegenoptions::LimitedDebugInfo: 1356 DebugInfoVal = "limited"; 1357 break; 1358 case codegenoptions::FullDebugInfo: 1359 DebugInfoVal = "standalone"; 1360 break; 1361 case codegenoptions::UnusedTypeInfo: 1362 DebugInfoVal = "unused-types"; 1363 break; 1364 case codegenoptions::NoDebugInfo: // default value 1365 DebugInfoVal = None; 1366 break; 1367 case codegenoptions::LocTrackingOnly: // implied value 1368 DebugInfoVal = None; 1369 break; 1370 } 1371 if (DebugInfoVal) 1372 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1373 1374 for (const auto &Prefix : Opts.DebugPrefixMap) 1375 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1376 Prefix.first + "=" + Prefix.second, SA); 1377 1378 for (const auto &Prefix : Opts.CoveragePrefixMap) 1379 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1380 Prefix.first + "=" + Prefix.second, SA); 1381 1382 if (Opts.NewStructPathTBAA) 1383 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1384 1385 if (Opts.OptimizeSize == 1) 1386 GenerateArg(Args, OPT_O, "s", SA); 1387 else if (Opts.OptimizeSize == 2) 1388 GenerateArg(Args, OPT_O, "z", SA); 1389 1390 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1391 // -ffreestanding. We'll consider that when generating them. 1392 1393 // NoBuiltinFuncs are generated by LangOptions. 1394 1395 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1396 GenerateArg(Args, OPT_funroll_loops, SA); 1397 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1398 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1399 1400 if (!Opts.BinutilsVersion.empty()) 1401 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1402 1403 if (Opts.DebugNameTable == 1404 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1405 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1406 else if (Opts.DebugNameTable == 1407 static_cast<unsigned>( 1408 llvm::DICompileUnit::DebugNameTableKind::Default)) 1409 GenerateArg(Args, OPT_gpubnames, SA); 1410 1411 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1412 // it or PGOUseInstrumentor. 1413 1414 if (Opts.TimePasses) { 1415 if (Opts.TimePassesPerRun) 1416 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1417 else 1418 GenerateArg(Args, OPT_ftime_report, SA); 1419 } 1420 1421 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1422 GenerateArg(Args, OPT_flto_EQ, "full", SA); 1423 1424 if (Opts.PrepareForThinLTO) 1425 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1426 1427 if (!Opts.ThinLTOIndexFile.empty()) 1428 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1429 1430 if (Opts.SaveTempsFilePrefix == OutputFile) 1431 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1432 1433 StringRef MemProfileBasename("memprof.profraw"); 1434 if (!Opts.MemoryProfileOutput.empty()) { 1435 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1436 GenerateArg(Args, OPT_fmemory_profile, SA); 1437 } else { 1438 size_t ArgLength = 1439 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1440 GenerateArg(Args, OPT_fmemory_profile_EQ, 1441 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1442 } 1443 } 1444 1445 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1446 GenerateArg(Args, OPT_coverage_version_EQ, 1447 StringRef(Opts.CoverageVersion, 4), SA); 1448 1449 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1450 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1451 // won't be generated.) 1452 1453 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1454 std::string InstrBundle = 1455 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1456 if (!InstrBundle.empty()) 1457 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1458 } 1459 1460 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1461 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1462 else if (Opts.CFProtectionReturn) 1463 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1464 else if (Opts.CFProtectionBranch) 1465 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1466 1467 for (const auto &F : Opts.LinkBitcodeFiles) { 1468 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1469 F.PropagateAttrs && F.Internalize; 1470 GenerateArg(Args, 1471 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1472 F.Filename, SA); 1473 } 1474 1475 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1476 // That would make it easy to generate the option only **once** if it was 1477 // explicitly set to non-default value. 1478 if (Opts.ExplicitEmulatedTLS) { 1479 GenerateArg( 1480 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1481 } 1482 1483 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1484 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1485 1486 if (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE()) 1487 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1488 SA); 1489 1490 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1491 OptSpecifier Opt = 1492 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1493 GenerateArg(Args, Opt, SA); 1494 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1495 OptSpecifier Opt = 1496 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1497 GenerateArg(Args, Opt, SA); 1498 } 1499 1500 if (Opts.EnableAIXExtendedAltivecABI) 1501 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1502 1503 if (!Opts.OptRecordPasses.empty()) 1504 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1505 1506 if (!Opts.OptRecordFormat.empty()) 1507 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1508 1509 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1510 Opts.OptimizationRemark); 1511 1512 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1513 Opts.OptimizationRemarkMissed); 1514 1515 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1516 Opts.OptimizationRemarkAnalysis); 1517 1518 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1519 Opts.DiagnosticsHotnessThreshold 1520 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1521 : "auto", 1522 SA); 1523 1524 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1525 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1526 1527 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1528 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1529 1530 if (!Opts.EmitVersionIdentMetadata) 1531 GenerateArg(Args, OPT_Qn, SA); 1532 1533 switch (Opts.FiniteLoops) { 1534 case CodeGenOptions::FiniteLoopsKind::Language: 1535 break; 1536 case CodeGenOptions::FiniteLoopsKind::Always: 1537 GenerateArg(Args, OPT_ffinite_loops, SA); 1538 break; 1539 case CodeGenOptions::FiniteLoopsKind::Never: 1540 GenerateArg(Args, OPT_fno_finite_loops, SA); 1541 break; 1542 } 1543 } 1544 1545 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1546 InputKind IK, 1547 DiagnosticsEngine &Diags, 1548 const llvm::Triple &T, 1549 const std::string &OutputFile, 1550 const LangOptions &LangOptsRef) { 1551 unsigned NumErrorsBefore = Diags.getNumErrors(); 1552 1553 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1554 // TODO: This could be done in Driver 1555 unsigned MaxOptLevel = 3; 1556 if (OptimizationLevel > MaxOptLevel) { 1557 // If the optimization level is not supported, fall back on the default 1558 // optimization 1559 Diags.Report(diag::warn_drv_optimization_value) 1560 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1561 OptimizationLevel = MaxOptLevel; 1562 } 1563 Opts.OptimizationLevel = OptimizationLevel; 1564 1565 // The key paths of codegen options defined in Options.td start with 1566 // "CodeGenOpts.". Let's provide the expected variable name and type. 1567 CodeGenOptions &CodeGenOpts = Opts; 1568 // Some codegen options depend on language options. Let's provide the expected 1569 // variable name and type. 1570 const LangOptions *LangOpts = &LangOptsRef; 1571 1572 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1573 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1574 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1575 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1576 MERGER, EXTRACTOR, TABLE_INDEX) \ 1577 PARSE_OPTION_WITH_MARSHALLING( \ 1578 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1579 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1580 #include "clang/Driver/Options.inc" 1581 #undef CODEGEN_OPTION_WITH_MARSHALLING 1582 1583 // At O0 we want to fully disable inlining outside of cases marked with 1584 // 'alwaysinline' that are required for correctness. 1585 Opts.setInlining((Opts.OptimizationLevel == 0) 1586 ? CodeGenOptions::OnlyAlwaysInlining 1587 : CodeGenOptions::NormalInlining); 1588 // Explicit inlining flags can disable some or all inlining even at 1589 // optimization levels above zero. 1590 if (Arg *InlineArg = Args.getLastArg( 1591 options::OPT_finline_functions, options::OPT_finline_hint_functions, 1592 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 1593 if (Opts.OptimizationLevel > 0) { 1594 const Option &InlineOpt = InlineArg->getOption(); 1595 if (InlineOpt.matches(options::OPT_finline_functions)) 1596 Opts.setInlining(CodeGenOptions::NormalInlining); 1597 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 1598 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1599 else 1600 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1601 } 1602 } 1603 1604 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1605 // -fdirect-access-external-data. 1606 Opts.DirectAccessExternalData = 1607 Args.hasArg(OPT_fdirect_access_external_data) || 1608 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1609 LangOpts->PICLevel == 0); 1610 1611 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1612 unsigned Val = 1613 llvm::StringSwitch<unsigned>(A->getValue()) 1614 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1615 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1616 .Case("constructor", codegenoptions::DebugInfoConstructor) 1617 .Case("limited", codegenoptions::LimitedDebugInfo) 1618 .Case("standalone", codegenoptions::FullDebugInfo) 1619 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1620 .Default(~0U); 1621 if (Val == ~0U) 1622 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1623 << A->getValue(); 1624 else 1625 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1626 } 1627 1628 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1629 // constructor homing, and vice versa for -fno-use-ctor-homing. 1630 if (const Arg *A = 1631 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1632 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1633 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1634 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1635 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1636 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1637 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1638 } 1639 1640 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1641 auto Split = StringRef(Arg).split('='); 1642 Opts.DebugPrefixMap.insert( 1643 {std::string(Split.first), std::string(Split.second)}); 1644 } 1645 1646 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1647 auto Split = StringRef(Arg).split('='); 1648 Opts.CoveragePrefixMap.insert( 1649 {std::string(Split.first), std::string(Split.second)}); 1650 } 1651 1652 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1653 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1654 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1655 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1656 1657 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1658 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1659 Opts.EmitCallSiteInfo = true; 1660 1661 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1662 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1663 << Opts.DIBugsReportFilePath; 1664 Opts.DIBugsReportFilePath = ""; 1665 } 1666 1667 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1668 Args.hasArg(OPT_new_struct_path_tbaa); 1669 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1670 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1671 if (Opts.SimplifyLibCalls) 1672 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1673 Opts.UnrollLoops = 1674 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1675 (Opts.OptimizationLevel > 1)); 1676 Opts.BinutilsVersion = 1677 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1678 1679 Opts.DebugNameTable = static_cast<unsigned>( 1680 Args.hasArg(OPT_ggnu_pubnames) 1681 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1682 : Args.hasArg(OPT_gpubnames) 1683 ? llvm::DICompileUnit::DebugNameTableKind::Default 1684 : llvm::DICompileUnit::DebugNameTableKind::None); 1685 1686 if (!Opts.ProfileInstrumentUsePath.empty()) 1687 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1688 1689 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1690 Opts.TimePasses = true; 1691 1692 // -ftime-report= is only for new pass manager. 1693 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1694 if (Opts.LegacyPassManager) 1695 Diags.Report(diag::err_drv_argument_only_allowed_with) 1696 << A->getAsString(Args) << "-fno-legacy-pass-manager"; 1697 1698 StringRef Val = A->getValue(); 1699 if (Val == "per-pass") 1700 Opts.TimePassesPerRun = false; 1701 else if (Val == "per-pass-run") 1702 Opts.TimePassesPerRun = true; 1703 else 1704 Diags.Report(diag::err_drv_invalid_value) 1705 << A->getAsString(Args) << A->getValue(); 1706 } 1707 } 1708 1709 Opts.PrepareForLTO = false; 1710 Opts.PrepareForThinLTO = false; 1711 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1712 Opts.PrepareForLTO = true; 1713 StringRef S = A->getValue(); 1714 if (S == "thin") 1715 Opts.PrepareForThinLTO = true; 1716 else if (S != "full") 1717 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1718 } 1719 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1720 if (IK.getLanguage() != Language::LLVM_IR) 1721 Diags.Report(diag::err_drv_argument_only_allowed_with) 1722 << A->getAsString(Args) << "-x ir"; 1723 Opts.ThinLTOIndexFile = 1724 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1725 } 1726 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1727 Opts.SaveTempsFilePrefix = 1728 llvm::StringSwitch<std::string>(A->getValue()) 1729 .Case("obj", OutputFile) 1730 .Default(llvm::sys::path::filename(OutputFile).str()); 1731 1732 // The memory profile runtime appends the pid to make this name more unique. 1733 const char *MemProfileBasename = "memprof.profraw"; 1734 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1735 SmallString<128> Path( 1736 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1737 llvm::sys::path::append(Path, MemProfileBasename); 1738 Opts.MemoryProfileOutput = std::string(Path); 1739 } else if (Args.hasArg(OPT_fmemory_profile)) 1740 Opts.MemoryProfileOutput = MemProfileBasename; 1741 1742 memcpy(Opts.CoverageVersion, "408*", 4); 1743 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1744 if (Args.hasArg(OPT_coverage_version_EQ)) { 1745 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1746 if (CoverageVersion.size() != 4) { 1747 Diags.Report(diag::err_drv_invalid_value) 1748 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1749 << CoverageVersion; 1750 } else { 1751 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1752 } 1753 } 1754 } 1755 // FIXME: For backend options that are not yet recorded as function 1756 // attributes in the IR, keep track of them so we can embed them in a 1757 // separate data section and use them when building the bitcode. 1758 for (const auto &A : Args) { 1759 // Do not encode output and input. 1760 if (A->getOption().getID() == options::OPT_o || 1761 A->getOption().getID() == options::OPT_INPUT || 1762 A->getOption().getID() == options::OPT_x || 1763 A->getOption().getID() == options::OPT_fembed_bitcode || 1764 A->getOption().matches(options::OPT_W_Group)) 1765 continue; 1766 ArgStringList ASL; 1767 A->render(Args, ASL); 1768 for (const auto &arg : ASL) { 1769 StringRef ArgStr(arg); 1770 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1771 // using \00 to separate each commandline options. 1772 Opts.CmdArgs.push_back('\0'); 1773 } 1774 } 1775 1776 auto XRayInstrBundles = 1777 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1778 if (XRayInstrBundles.empty()) 1779 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1780 else 1781 for (const auto &A : XRayInstrBundles) 1782 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1783 Diags, Opts.XRayInstrumentationBundle); 1784 1785 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1786 StringRef Name = A->getValue(); 1787 if (Name == "full") { 1788 Opts.CFProtectionReturn = 1; 1789 Opts.CFProtectionBranch = 1; 1790 } else if (Name == "return") 1791 Opts.CFProtectionReturn = 1; 1792 else if (Name == "branch") 1793 Opts.CFProtectionBranch = 1; 1794 else if (Name != "none") 1795 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1796 } 1797 1798 for (auto *A : 1799 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1800 CodeGenOptions::BitcodeFileToLink F; 1801 F.Filename = A->getValue(); 1802 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1803 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1804 // When linking CUDA bitcode, propagate function attributes so that 1805 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1806 F.PropagateAttrs = true; 1807 F.Internalize = true; 1808 } 1809 Opts.LinkBitcodeFiles.push_back(F); 1810 } 1811 1812 if (Args.getLastArg(OPT_femulated_tls) || 1813 Args.getLastArg(OPT_fno_emulated_tls)) { 1814 Opts.ExplicitEmulatedTLS = true; 1815 } 1816 1817 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1818 if (T.isOSAIX()) { 1819 StringRef Name = A->getValue(); 1820 if (Name != "global-dynamic") 1821 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1822 } 1823 } 1824 1825 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1826 StringRef Val = A->getValue(); 1827 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1828 if (!Opts.FPDenormalMode.isValid()) 1829 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1830 } 1831 1832 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1833 StringRef Val = A->getValue(); 1834 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1835 if (!Opts.FP32DenormalMode.isValid()) 1836 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1837 } 1838 1839 // X86_32 has -fppc-struct-return and -freg-struct-return. 1840 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1841 if (Arg *A = 1842 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1843 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1844 // TODO: We might want to consider enabling these options on AIX in the 1845 // future. 1846 if (T.isOSAIX()) 1847 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1848 << A->getSpelling() << T.str(); 1849 1850 const Option &O = A->getOption(); 1851 if (O.matches(OPT_fpcc_struct_return) || 1852 O.matches(OPT_maix_struct_return)) { 1853 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1854 } else { 1855 assert(O.matches(OPT_freg_struct_return) || 1856 O.matches(OPT_msvr4_struct_return)); 1857 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1858 } 1859 } 1860 1861 if (Arg *A = 1862 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1863 if (!T.isOSAIX()) 1864 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1865 << A->getSpelling() << T.str(); 1866 1867 const Option &O = A->getOption(); 1868 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1869 } 1870 1871 bool NeedLocTracking = false; 1872 1873 if (!Opts.OptRecordFile.empty()) 1874 NeedLocTracking = true; 1875 1876 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1877 Opts.OptRecordPasses = A->getValue(); 1878 NeedLocTracking = true; 1879 } 1880 1881 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1882 Opts.OptRecordFormat = A->getValue(); 1883 NeedLocTracking = true; 1884 } 1885 1886 Opts.OptimizationRemark = 1887 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1888 1889 Opts.OptimizationRemarkMissed = 1890 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1891 1892 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1893 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1894 1895 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1896 Opts.OptimizationRemarkMissed.hasValidPattern() || 1897 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1898 1899 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1900 bool UsingProfile = UsingSampleProfile || 1901 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1902 1903 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1904 // An IR file will contain PGO as metadata 1905 IK.getLanguage() != Language::LLVM_IR) 1906 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1907 << "-fdiagnostics-show-hotness"; 1908 1909 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1910 if (auto *arg = 1911 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1912 auto ResultOrErr = 1913 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1914 1915 if (!ResultOrErr) { 1916 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1917 << "-fdiagnostics-hotness-threshold="; 1918 } else { 1919 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1920 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1921 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1922 !UsingProfile) 1923 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1924 << "-fdiagnostics-hotness-threshold="; 1925 } 1926 } 1927 1928 // If the user requested to use a sample profile for PGO, then the 1929 // backend will need to track source location information so the profile 1930 // can be incorporated into the IR. 1931 if (UsingSampleProfile) 1932 NeedLocTracking = true; 1933 1934 if (!Opts.StackUsageOutput.empty()) 1935 NeedLocTracking = true; 1936 1937 // If the user requested a flag that requires source locations available in 1938 // the backend, make sure that the backend tracks source location information. 1939 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1940 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1941 1942 // Parse -fsanitize-recover= arguments. 1943 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1944 parseSanitizerKinds("-fsanitize-recover=", 1945 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1946 Opts.SanitizeRecover); 1947 parseSanitizerKinds("-fsanitize-trap=", 1948 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1949 Opts.SanitizeTrap); 1950 1951 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1952 1953 if (Args.hasArg(options::OPT_ffinite_loops)) 1954 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 1955 else if (Args.hasArg(options::OPT_fno_finite_loops)) 1956 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 1957 1958 Opts.EmitIEEENaNCompliantInsts = 1959 Args.hasFlag(options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee); 1960 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 1961 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 1962 1963 return Diags.getNumErrors() == NumErrorsBefore; 1964 } 1965 1966 static void 1967 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 1968 SmallVectorImpl<const char *> &Args, 1969 CompilerInvocation::StringAllocator SA) { 1970 const DependencyOutputOptions &DependencyOutputOpts = Opts; 1971 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1972 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1973 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1974 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1975 MERGER, EXTRACTOR, TABLE_INDEX) \ 1976 GENERATE_OPTION_WITH_MARSHALLING( \ 1977 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1978 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1979 #include "clang/Driver/Options.inc" 1980 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 1981 1982 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 1983 GenerateArg(Args, OPT_show_includes, SA); 1984 1985 for (const auto &Dep : Opts.ExtraDeps) { 1986 switch (Dep.second) { 1987 case EDK_SanitizeIgnorelist: 1988 // Sanitizer ignorelist arguments are generated from LanguageOptions. 1989 continue; 1990 case EDK_ModuleFile: 1991 // Module file arguments are generated from FrontendOptions and 1992 // HeaderSearchOptions. 1993 continue; 1994 case EDK_ProfileList: 1995 // Profile list arguments are generated from LanguageOptions via the 1996 // marshalling infrastructure. 1997 continue; 1998 case EDK_DepFileEntry: 1999 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2000 break; 2001 } 2002 } 2003 } 2004 2005 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2006 ArgList &Args, DiagnosticsEngine &Diags, 2007 frontend::ActionKind Action, 2008 bool ShowLineMarkers) { 2009 unsigned NumErrorsBefore = Diags.getNumErrors(); 2010 2011 DependencyOutputOptions &DependencyOutputOpts = Opts; 2012 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2013 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2014 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2015 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2016 MERGER, EXTRACTOR, TABLE_INDEX) \ 2017 PARSE_OPTION_WITH_MARSHALLING( \ 2018 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2019 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2020 #include "clang/Driver/Options.inc" 2021 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2022 2023 if (Args.hasArg(OPT_show_includes)) { 2024 // Writing both /showIncludes and preprocessor output to stdout 2025 // would produce interleaved output, so use stderr for /showIncludes. 2026 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2027 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2028 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2029 else 2030 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2031 } else { 2032 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2033 } 2034 2035 // Add sanitizer ignorelists as extra dependencies. 2036 // They won't be discovered by the regular preprocessor, so 2037 // we let make / ninja to know about this implicit dependency. 2038 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2039 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2040 StringRef Val = A->getValue(); 2041 if (Val.find('=') == StringRef::npos) 2042 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2043 } 2044 if (Opts.IncludeSystemHeaders) { 2045 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2046 StringRef Val = A->getValue(); 2047 if (Val.find('=') == StringRef::npos) 2048 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2049 } 2050 } 2051 } 2052 2053 // -fprofile-list= dependencies. 2054 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2055 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2056 2057 // Propagate the extra dependencies. 2058 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2059 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2060 2061 // Only the -fmodule-file=<file> form. 2062 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2063 StringRef Val = A->getValue(); 2064 if (Val.find('=') == StringRef::npos) 2065 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2066 } 2067 2068 return Diags.getNumErrors() == NumErrorsBefore; 2069 } 2070 2071 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2072 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2073 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2074 // Support both clang's -f[no-]color-diagnostics and gcc's 2075 // -f[no-]diagnostics-colors[=never|always|auto]. 2076 enum { 2077 Colors_On, 2078 Colors_Off, 2079 Colors_Auto 2080 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2081 for (auto *A : Args) { 2082 const Option &O = A->getOption(); 2083 if (O.matches(options::OPT_fcolor_diagnostics) || 2084 O.matches(options::OPT_fdiagnostics_color)) { 2085 ShowColors = Colors_On; 2086 } else if (O.matches(options::OPT_fno_color_diagnostics) || 2087 O.matches(options::OPT_fno_diagnostics_color)) { 2088 ShowColors = Colors_Off; 2089 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2090 StringRef Value(A->getValue()); 2091 if (Value == "always") 2092 ShowColors = Colors_On; 2093 else if (Value == "never") 2094 ShowColors = Colors_Off; 2095 else if (Value == "auto") 2096 ShowColors = Colors_Auto; 2097 } 2098 } 2099 return ShowColors == Colors_On || 2100 (ShowColors == Colors_Auto && 2101 llvm::sys::Process::StandardErrHasColors()); 2102 } 2103 2104 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2105 DiagnosticsEngine &Diags) { 2106 bool Success = true; 2107 for (const auto &Prefix : VerifyPrefixes) { 2108 // Every prefix must start with a letter and contain only alphanumeric 2109 // characters, hyphens, and underscores. 2110 auto BadChar = llvm::find_if(Prefix, [](char C) { 2111 return !isAlphanumeric(C) && C != '-' && C != '_'; 2112 }); 2113 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2114 Success = false; 2115 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2116 Diags.Report(diag::note_drv_verify_prefix_spelling); 2117 } 2118 } 2119 return Success; 2120 } 2121 2122 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2123 SmallVectorImpl<const char *> &Args, 2124 CompilerInvocation::StringAllocator SA) { 2125 const FileSystemOptions &FileSystemOpts = Opts; 2126 2127 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2128 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2129 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2130 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2131 MERGER, EXTRACTOR, TABLE_INDEX) \ 2132 GENERATE_OPTION_WITH_MARSHALLING( \ 2133 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2134 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2135 #include "clang/Driver/Options.inc" 2136 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2137 } 2138 2139 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2140 DiagnosticsEngine &Diags) { 2141 unsigned NumErrorsBefore = Diags.getNumErrors(); 2142 2143 FileSystemOptions &FileSystemOpts = Opts; 2144 2145 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2146 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2147 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2148 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2149 MERGER, EXTRACTOR, TABLE_INDEX) \ 2150 PARSE_OPTION_WITH_MARSHALLING( \ 2151 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2152 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2153 #include "clang/Driver/Options.inc" 2154 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2155 2156 return Diags.getNumErrors() == NumErrorsBefore; 2157 } 2158 2159 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2160 SmallVectorImpl<const char *> &Args, 2161 CompilerInvocation::StringAllocator SA) { 2162 const MigratorOptions &MigratorOpts = Opts; 2163 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2164 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2165 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2166 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2167 MERGER, EXTRACTOR, TABLE_INDEX) \ 2168 GENERATE_OPTION_WITH_MARSHALLING( \ 2169 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2170 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2171 #include "clang/Driver/Options.inc" 2172 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2173 } 2174 2175 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2176 DiagnosticsEngine &Diags) { 2177 unsigned NumErrorsBefore = Diags.getNumErrors(); 2178 2179 MigratorOptions &MigratorOpts = Opts; 2180 2181 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2182 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2183 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2184 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2185 MERGER, EXTRACTOR, TABLE_INDEX) \ 2186 PARSE_OPTION_WITH_MARSHALLING( \ 2187 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2188 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2189 #include "clang/Driver/Options.inc" 2190 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2191 2192 return Diags.getNumErrors() == NumErrorsBefore; 2193 } 2194 2195 void CompilerInvocation::GenerateDiagnosticArgs( 2196 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2197 StringAllocator SA, bool DefaultDiagColor) { 2198 const DiagnosticOptions *DiagnosticOpts = &Opts; 2199 #define DIAG_OPTION_WITH_MARSHALLING( \ 2200 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2201 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2202 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2203 MERGER, EXTRACTOR, TABLE_INDEX) \ 2204 GENERATE_OPTION_WITH_MARSHALLING( \ 2205 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2206 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2207 #include "clang/Driver/Options.inc" 2208 #undef DIAG_OPTION_WITH_MARSHALLING 2209 2210 if (!Opts.DiagnosticSerializationFile.empty()) 2211 GenerateArg(Args, OPT_diagnostic_serialized_file, 2212 Opts.DiagnosticSerializationFile, SA); 2213 2214 if (Opts.ShowColors) 2215 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2216 2217 if (Opts.VerifyDiagnostics && 2218 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2219 GenerateArg(Args, OPT_verify, SA); 2220 2221 for (const auto &Prefix : Opts.VerifyPrefixes) 2222 if (Prefix != "expected") 2223 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2224 2225 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2226 if (VIU == DiagnosticLevelMask::None) { 2227 // This is the default, don't generate anything. 2228 } else if (VIU == DiagnosticLevelMask::All) { 2229 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2230 } else { 2231 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2232 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2233 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2234 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2235 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2236 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2237 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2238 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2239 } 2240 2241 for (const auto &Warning : Opts.Warnings) { 2242 // This option is automatically generated from UndefPrefixes. 2243 if (Warning == "undef-prefix") 2244 continue; 2245 Args.push_back(SA(StringRef("-W") + Warning)); 2246 } 2247 2248 for (const auto &Remark : Opts.Remarks) { 2249 // These arguments are generated from OptimizationRemark fields of 2250 // CodeGenOptions. 2251 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2252 "pass-analysis", "no-pass-analysis", 2253 "pass-missed", "no-pass-missed"}; 2254 if (llvm::is_contained(IgnoredRemarks, Remark)) 2255 continue; 2256 2257 Args.push_back(SA(StringRef("-R") + Remark)); 2258 } 2259 } 2260 2261 std::unique_ptr<DiagnosticOptions> 2262 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2263 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2264 unsigned MissingArgIndex, MissingArgCount; 2265 InputArgList Args = getDriverOptTable().ParseArgs( 2266 Argv.slice(1), MissingArgIndex, MissingArgCount); 2267 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2268 // Any errors that would be diagnosed here will also be diagnosed later, 2269 // when the DiagnosticsEngine actually exists. 2270 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2271 return DiagOpts; 2272 } 2273 2274 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2275 DiagnosticsEngine *Diags, 2276 bool DefaultDiagColor) { 2277 Optional<DiagnosticsEngine> IgnoringDiags; 2278 if (!Diags) { 2279 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2280 new IgnoringDiagConsumer()); 2281 Diags = &*IgnoringDiags; 2282 } 2283 2284 unsigned NumErrorsBefore = Diags->getNumErrors(); 2285 2286 // The key paths of diagnostic options defined in Options.td start with 2287 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2288 DiagnosticOptions *DiagnosticOpts = &Opts; 2289 2290 #define DIAG_OPTION_WITH_MARSHALLING( \ 2291 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2292 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2293 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2294 MERGER, EXTRACTOR, TABLE_INDEX) \ 2295 PARSE_OPTION_WITH_MARSHALLING( \ 2296 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2297 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2298 #include "clang/Driver/Options.inc" 2299 #undef DIAG_OPTION_WITH_MARSHALLING 2300 2301 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2302 2303 if (Arg *A = 2304 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2305 Opts.DiagnosticSerializationFile = A->getValue(); 2306 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2307 2308 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2309 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2310 if (Args.hasArg(OPT_verify)) 2311 Opts.VerifyPrefixes.push_back("expected"); 2312 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2313 // then sort it to prepare for fast lookup using std::binary_search. 2314 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2315 Opts.VerifyDiagnostics = false; 2316 else 2317 llvm::sort(Opts.VerifyPrefixes); 2318 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2319 parseDiagnosticLevelMask( 2320 "-verify-ignore-unexpected=", 2321 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2322 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2323 DiagMask = DiagnosticLevelMask::All; 2324 Opts.setVerifyIgnoreUnexpected(DiagMask); 2325 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2326 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2327 Diags->Report(diag::warn_ignoring_ftabstop_value) 2328 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2329 } 2330 2331 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2332 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2333 2334 return Diags->getNumErrors() == NumErrorsBefore; 2335 } 2336 2337 /// Parse the argument to the -ftest-module-file-extension 2338 /// command-line argument. 2339 /// 2340 /// \returns true on error, false on success. 2341 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2342 std::string &BlockName, 2343 unsigned &MajorVersion, 2344 unsigned &MinorVersion, 2345 bool &Hashed, 2346 std::string &UserInfo) { 2347 SmallVector<StringRef, 5> Args; 2348 Arg.split(Args, ':', 5); 2349 if (Args.size() < 5) 2350 return true; 2351 2352 BlockName = std::string(Args[0]); 2353 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2354 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2355 if (Args[3].getAsInteger(2, Hashed)) return true; 2356 if (Args.size() > 4) 2357 UserInfo = std::string(Args[4]); 2358 return false; 2359 } 2360 2361 /// Return a table that associates command line option specifiers with the 2362 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2363 /// intentionally missing, as this case is handled separately from other 2364 /// frontend options. 2365 static const auto &getFrontendActionTable() { 2366 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2367 {frontend::ASTDeclList, OPT_ast_list}, 2368 2369 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2370 {frontend::ASTDump, OPT_ast_dump_all}, 2371 {frontend::ASTDump, OPT_ast_dump_EQ}, 2372 {frontend::ASTDump, OPT_ast_dump}, 2373 {frontend::ASTDump, OPT_ast_dump_lookups}, 2374 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2375 2376 {frontend::ASTPrint, OPT_ast_print}, 2377 {frontend::ASTView, OPT_ast_view}, 2378 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2379 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2380 {frontend::DumpTokens, OPT_dump_tokens}, 2381 {frontend::EmitAssembly, OPT_S}, 2382 {frontend::EmitBC, OPT_emit_llvm_bc}, 2383 {frontend::EmitHTML, OPT_emit_html}, 2384 {frontend::EmitLLVM, OPT_emit_llvm}, 2385 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2386 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2387 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2388 {frontend::EmitObj, OPT_emit_obj}, 2389 2390 {frontend::FixIt, OPT_fixit_EQ}, 2391 {frontend::FixIt, OPT_fixit}, 2392 2393 {frontend::GenerateModule, OPT_emit_module}, 2394 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2395 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2396 {frontend::GeneratePCH, OPT_emit_pch}, 2397 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2398 {frontend::InitOnly, OPT_init_only}, 2399 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2400 {frontend::ModuleFileInfo, OPT_module_file_info}, 2401 {frontend::VerifyPCH, OPT_verify_pch}, 2402 {frontend::PrintPreamble, OPT_print_preamble}, 2403 {frontend::PrintPreprocessedInput, OPT_E}, 2404 {frontend::TemplightDump, OPT_templight_dump}, 2405 {frontend::RewriteMacros, OPT_rewrite_macros}, 2406 {frontend::RewriteObjC, OPT_rewrite_objc}, 2407 {frontend::RewriteTest, OPT_rewrite_test}, 2408 {frontend::RunAnalysis, OPT_analyze}, 2409 {frontend::MigrateSource, OPT_migrate}, 2410 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2411 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2412 OPT_print_dependency_directives_minimized_source}, 2413 }; 2414 2415 return Table; 2416 } 2417 2418 /// Maps command line option to frontend action. 2419 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2420 for (const auto &ActionOpt : getFrontendActionTable()) 2421 if (ActionOpt.second == Opt.getID()) 2422 return ActionOpt.first; 2423 2424 return None; 2425 } 2426 2427 /// Maps frontend action to command line option. 2428 static Optional<OptSpecifier> 2429 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2430 for (const auto &ActionOpt : getFrontendActionTable()) 2431 if (ActionOpt.first == ProgramAction) 2432 return OptSpecifier(ActionOpt.second); 2433 2434 return None; 2435 } 2436 2437 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2438 SmallVectorImpl<const char *> &Args, 2439 CompilerInvocation::StringAllocator SA, 2440 bool IsHeader) { 2441 const FrontendOptions &FrontendOpts = Opts; 2442 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2443 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2444 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2445 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2446 MERGER, EXTRACTOR, TABLE_INDEX) \ 2447 GENERATE_OPTION_WITH_MARSHALLING( \ 2448 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2449 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2450 #include "clang/Driver/Options.inc" 2451 #undef FRONTEND_OPTION_WITH_MARSHALLING 2452 2453 Optional<OptSpecifier> ProgramActionOpt = 2454 getProgramActionOpt(Opts.ProgramAction); 2455 2456 // Generating a simple flag covers most frontend actions. 2457 std::function<void()> GenerateProgramAction = [&]() { 2458 GenerateArg(Args, *ProgramActionOpt, SA); 2459 }; 2460 2461 if (!ProgramActionOpt) { 2462 // PluginAction is the only program action handled separately. 2463 assert(Opts.ProgramAction == frontend::PluginAction && 2464 "Frontend action without option."); 2465 GenerateProgramAction = [&]() { 2466 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2467 }; 2468 } 2469 2470 // FIXME: Simplify the complex 'AST dump' command line. 2471 if (Opts.ProgramAction == frontend::ASTDump) { 2472 GenerateProgramAction = [&]() { 2473 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2474 // marshalling infrastructure. 2475 2476 if (Opts.ASTDumpFormat != ADOF_Default) { 2477 StringRef Format; 2478 switch (Opts.ASTDumpFormat) { 2479 case ADOF_Default: 2480 llvm_unreachable("Default AST dump format."); 2481 case ADOF_JSON: 2482 Format = "json"; 2483 break; 2484 } 2485 2486 if (Opts.ASTDumpAll) 2487 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2488 if (Opts.ASTDumpDecls) 2489 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2490 } else { 2491 if (Opts.ASTDumpAll) 2492 GenerateArg(Args, OPT_ast_dump_all, SA); 2493 if (Opts.ASTDumpDecls) 2494 GenerateArg(Args, OPT_ast_dump, SA); 2495 } 2496 }; 2497 } 2498 2499 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2500 GenerateProgramAction = [&]() { 2501 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2502 }; 2503 } 2504 2505 GenerateProgramAction(); 2506 2507 for (const auto &PluginArgs : Opts.PluginArgs) { 2508 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2509 const char *Spelling = 2510 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2511 for (const auto &PluginArg : PluginArgs.second) 2512 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2513 } 2514 2515 for (const auto &Ext : Opts.ModuleFileExtensions) 2516 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2517 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2518 2519 if (!Opts.CodeCompletionAt.FileName.empty()) 2520 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2521 SA); 2522 2523 for (const auto &Plugin : Opts.Plugins) 2524 GenerateArg(Args, OPT_load, Plugin, SA); 2525 2526 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2527 2528 for (const auto &ModuleFile : Opts.ModuleFiles) 2529 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2530 2531 if (Opts.AuxTargetCPU.hasValue()) 2532 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2533 2534 if (Opts.AuxTargetFeatures.hasValue()) 2535 for (const auto &Feature : *Opts.AuxTargetFeatures) 2536 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2537 2538 { 2539 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2540 StringRef ModuleMap = 2541 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2542 StringRef Header = IsHeader ? "-header" : ""; 2543 2544 StringRef Lang; 2545 switch (Opts.DashX.getLanguage()) { 2546 case Language::C: 2547 Lang = "c"; 2548 break; 2549 case Language::OpenCL: 2550 Lang = "cl"; 2551 break; 2552 case Language::OpenCLCXX: 2553 Lang = "clcpp"; 2554 break; 2555 case Language::CUDA: 2556 Lang = "cuda"; 2557 break; 2558 case Language::HIP: 2559 Lang = "hip"; 2560 break; 2561 case Language::CXX: 2562 Lang = "c++"; 2563 break; 2564 case Language::ObjC: 2565 Lang = "objective-c"; 2566 break; 2567 case Language::ObjCXX: 2568 Lang = "objective-c++"; 2569 break; 2570 case Language::RenderScript: 2571 Lang = "renderscript"; 2572 break; 2573 case Language::Asm: 2574 Lang = "assembler-with-cpp"; 2575 break; 2576 case Language::Unknown: 2577 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2578 "Generating -x argument for unknown language (not precompiled)."); 2579 Lang = "ast"; 2580 break; 2581 case Language::LLVM_IR: 2582 Lang = "ir"; 2583 break; 2584 } 2585 2586 GenerateArg(Args, OPT_x, Lang + Header + ModuleMap + Preprocessed, SA); 2587 } 2588 2589 // OPT_INPUT has a unique class, generate it directly. 2590 for (const auto &Input : Opts.Inputs) 2591 Args.push_back(SA(Input.getFile())); 2592 } 2593 2594 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2595 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2596 unsigned NumErrorsBefore = Diags.getNumErrors(); 2597 2598 FrontendOptions &FrontendOpts = Opts; 2599 2600 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2601 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2602 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2603 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2604 MERGER, EXTRACTOR, TABLE_INDEX) \ 2605 PARSE_OPTION_WITH_MARSHALLING( \ 2606 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2607 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2608 #include "clang/Driver/Options.inc" 2609 #undef FRONTEND_OPTION_WITH_MARSHALLING 2610 2611 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2612 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2613 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2614 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2615 assert(ProgramAction && "Option specifier not in Action_Group."); 2616 2617 if (ProgramAction == frontend::ASTDump && 2618 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2619 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2620 .CaseLower("default", ADOF_Default) 2621 .CaseLower("json", ADOF_JSON) 2622 .Default(std::numeric_limits<unsigned>::max()); 2623 2624 if (Val != std::numeric_limits<unsigned>::max()) 2625 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2626 else { 2627 Diags.Report(diag::err_drv_invalid_value) 2628 << A->getAsString(Args) << A->getValue(); 2629 Opts.ASTDumpFormat = ADOF_Default; 2630 } 2631 } 2632 2633 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2634 Opts.FixItSuffix = A->getValue(); 2635 2636 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2637 StringRef ArgStr = 2638 Args.hasArg(OPT_interface_stub_version_EQ) 2639 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2640 : "ifs-v1"; 2641 if (ArgStr == "experimental-yaml-elf-v1" || 2642 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2643 ArgStr == "experimental-tapi-elf-v1") { 2644 std::string ErrorMessage = 2645 "Invalid interface stub format: " + ArgStr.str() + 2646 " is deprecated."; 2647 Diags.Report(diag::err_drv_invalid_value) 2648 << "Must specify a valid interface stub format type, ie: " 2649 "-interface-stub-version=ifs-v1" 2650 << ErrorMessage; 2651 ProgramAction = frontend::ParseSyntaxOnly; 2652 } else if (!ArgStr.startswith("ifs-")) { 2653 std::string ErrorMessage = 2654 "Invalid interface stub format: " + ArgStr.str() + "."; 2655 Diags.Report(diag::err_drv_invalid_value) 2656 << "Must specify a valid interface stub format type, ie: " 2657 "-interface-stub-version=ifs-v1" 2658 << ErrorMessage; 2659 ProgramAction = frontend::ParseSyntaxOnly; 2660 } 2661 } 2662 2663 Opts.ProgramAction = *ProgramAction; 2664 } 2665 2666 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2667 Opts.Plugins.emplace_back(A->getValue(0)); 2668 Opts.ProgramAction = frontend::PluginAction; 2669 Opts.ActionName = A->getValue(); 2670 } 2671 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2672 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2673 2674 for (const std::string &Arg : 2675 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2676 std::string BlockName; 2677 unsigned MajorVersion; 2678 unsigned MinorVersion; 2679 bool Hashed; 2680 std::string UserInfo; 2681 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2682 MinorVersion, Hashed, UserInfo)) { 2683 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2684 2685 continue; 2686 } 2687 2688 // Add the testing module file extension. 2689 Opts.ModuleFileExtensions.push_back( 2690 std::make_shared<TestModuleFileExtension>( 2691 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2692 } 2693 2694 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2695 Opts.CodeCompletionAt = 2696 ParsedSourceLocation::FromString(A->getValue()); 2697 if (Opts.CodeCompletionAt.FileName.empty()) 2698 Diags.Report(diag::err_drv_invalid_value) 2699 << A->getAsString(Args) << A->getValue(); 2700 } 2701 2702 Opts.Plugins = Args.getAllArgValues(OPT_load); 2703 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2704 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2705 // Only the -fmodule-file=<file> form. 2706 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2707 StringRef Val = A->getValue(); 2708 if (Val.find('=') == StringRef::npos) 2709 Opts.ModuleFiles.push_back(std::string(Val)); 2710 } 2711 2712 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2713 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2714 << "-emit-module"; 2715 2716 if (Args.hasArg(OPT_aux_target_cpu)) 2717 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2718 if (Args.hasArg(OPT_aux_target_feature)) 2719 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2720 2721 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2722 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2723 Diags.Report(diag::err_drv_argument_not_allowed_with) 2724 << "ARC migration" << "ObjC migration"; 2725 } 2726 2727 InputKind DashX(Language::Unknown); 2728 if (const Arg *A = Args.getLastArg(OPT_x)) { 2729 StringRef XValue = A->getValue(); 2730 2731 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2732 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2733 bool Preprocessed = XValue.consume_back("-cpp-output"); 2734 bool ModuleMap = XValue.consume_back("-module-map"); 2735 IsHeaderFile = !Preprocessed && !ModuleMap && 2736 XValue != "precompiled-header" && 2737 XValue.consume_back("-header"); 2738 2739 // Principal languages. 2740 DashX = llvm::StringSwitch<InputKind>(XValue) 2741 .Case("c", Language::C) 2742 .Case("cl", Language::OpenCL) 2743 .Case("clcpp", Language::OpenCLCXX) 2744 .Case("cuda", Language::CUDA) 2745 .Case("hip", Language::HIP) 2746 .Case("c++", Language::CXX) 2747 .Case("objective-c", Language::ObjC) 2748 .Case("objective-c++", Language::ObjCXX) 2749 .Case("renderscript", Language::RenderScript) 2750 .Default(Language::Unknown); 2751 2752 // "objc[++]-cpp-output" is an acceptable synonym for 2753 // "objective-c[++]-cpp-output". 2754 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2755 DashX = llvm::StringSwitch<InputKind>(XValue) 2756 .Case("objc", Language::ObjC) 2757 .Case("objc++", Language::ObjCXX) 2758 .Default(Language::Unknown); 2759 2760 // Some special cases cannot be combined with suffixes. 2761 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2762 DashX = llvm::StringSwitch<InputKind>(XValue) 2763 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2764 .Case("assembler-with-cpp", Language::Asm) 2765 .Cases("ast", "pcm", "precompiled-header", 2766 InputKind(Language::Unknown, InputKind::Precompiled)) 2767 .Case("ir", Language::LLVM_IR) 2768 .Default(Language::Unknown); 2769 2770 if (DashX.isUnknown()) 2771 Diags.Report(diag::err_drv_invalid_value) 2772 << A->getAsString(Args) << A->getValue(); 2773 2774 if (Preprocessed) 2775 DashX = DashX.getPreprocessed(); 2776 if (ModuleMap) 2777 DashX = DashX.withFormat(InputKind::ModuleMap); 2778 } 2779 2780 // '-' is the default input if none is given. 2781 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2782 Opts.Inputs.clear(); 2783 if (Inputs.empty()) 2784 Inputs.push_back("-"); 2785 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2786 InputKind IK = DashX; 2787 if (IK.isUnknown()) { 2788 IK = FrontendOptions::getInputKindForExtension( 2789 StringRef(Inputs[i]).rsplit('.').second); 2790 // FIXME: Warn on this? 2791 if (IK.isUnknown()) 2792 IK = Language::C; 2793 // FIXME: Remove this hack. 2794 if (i == 0) 2795 DashX = IK; 2796 } 2797 2798 bool IsSystem = false; 2799 2800 // The -emit-module action implicitly takes a module map. 2801 if (Opts.ProgramAction == frontend::GenerateModule && 2802 IK.getFormat() == InputKind::Source) { 2803 IK = IK.withFormat(InputKind::ModuleMap); 2804 IsSystem = Opts.IsSystemModule; 2805 } 2806 2807 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2808 } 2809 2810 Opts.DashX = DashX; 2811 2812 return Diags.getNumErrors() == NumErrorsBefore; 2813 } 2814 2815 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2816 void *MainAddr) { 2817 std::string ClangExecutable = 2818 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2819 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2820 } 2821 2822 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2823 SmallVectorImpl<const char *> &Args, 2824 CompilerInvocation::StringAllocator SA) { 2825 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2826 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2827 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2828 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2829 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2830 MERGER, EXTRACTOR, TABLE_INDEX) \ 2831 GENERATE_OPTION_WITH_MARSHALLING( \ 2832 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2833 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2834 #include "clang/Driver/Options.inc" 2835 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2836 2837 if (Opts.UseLibcxx) 2838 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2839 2840 if (!Opts.ModuleCachePath.empty()) 2841 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2842 2843 for (const auto &File : Opts.PrebuiltModuleFiles) 2844 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2845 2846 for (const auto &Path : Opts.PrebuiltModulePaths) 2847 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2848 2849 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2850 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2851 2852 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2853 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2854 llvm::Optional<bool> IsFramework, 2855 llvm::Optional<bool> IgnoreSysRoot) { 2856 return llvm::find(Groups, Entry.Group) != Groups.end() && 2857 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2858 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2859 }; 2860 2861 auto It = Opts.UserEntries.begin(); 2862 auto End = Opts.UserEntries.end(); 2863 2864 // Add -I..., -F..., and -index-header-map options in order. 2865 for (; It < End && 2866 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2867 ++It) { 2868 OptSpecifier Opt = [It, Matches]() { 2869 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2870 return OPT_F; 2871 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2872 return OPT_I; 2873 if (Matches(*It, frontend::Angled, true, true)) 2874 return OPT_F; 2875 if (Matches(*It, frontend::Angled, false, true)) 2876 return OPT_I; 2877 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2878 }(); 2879 2880 if (It->Group == frontend::IndexHeaderMap) 2881 GenerateArg(Args, OPT_index_header_map, SA); 2882 GenerateArg(Args, Opt, It->Path, SA); 2883 }; 2884 2885 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2886 // have already been generated as "-I[xx]yy". If that's the case, their 2887 // position on command line was such that this has no semantic impact on 2888 // include paths. 2889 for (; It < End && 2890 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2891 ++It) { 2892 OptSpecifier Opt = 2893 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2894 GenerateArg(Args, Opt, It->Path, SA); 2895 } 2896 2897 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2898 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2899 // command line was such that this has no semantic impact on include paths. 2900 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2901 GenerateArg(Args, OPT_idirafter, It->Path, SA); 2902 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 2903 GenerateArg(Args, OPT_iquote, It->Path, SA); 2904 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 2905 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 2906 It->Path, SA); 2907 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 2908 GenerateArg(Args, OPT_iframework, It->Path, SA); 2909 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 2910 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 2911 2912 // Add the paths for the various language specific isystem flags. 2913 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 2914 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 2915 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 2916 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 2917 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 2918 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 2919 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 2920 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 2921 2922 // Add the internal paths from a driver that detects standard include paths. 2923 // Note: Some paths that came from "-internal-isystem" arguments may have 2924 // already been generated as "-isystem". If that's the case, their position on 2925 // command line was such that this has no semantic impact on include paths. 2926 for (; It < End && 2927 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 2928 ++It) { 2929 OptSpecifier Opt = It->Group == frontend::System 2930 ? OPT_internal_isystem 2931 : OPT_internal_externc_isystem; 2932 GenerateArg(Args, Opt, It->Path, SA); 2933 } 2934 2935 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 2936 2937 // Add the path prefixes which are implicitly treated as being system headers. 2938 for (const auto &P : Opts.SystemHeaderPrefixes) { 2939 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 2940 : OPT_no_system_header_prefix; 2941 GenerateArg(Args, Opt, P.Prefix, SA); 2942 } 2943 2944 for (const std::string &F : Opts.VFSOverlayFiles) 2945 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 2946 } 2947 2948 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2949 DiagnosticsEngine &Diags, 2950 const std::string &WorkingDir) { 2951 unsigned NumErrorsBefore = Diags.getNumErrors(); 2952 2953 HeaderSearchOptions *HeaderSearchOpts = &Opts; 2954 2955 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2956 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2957 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2958 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2959 MERGER, EXTRACTOR, TABLE_INDEX) \ 2960 PARSE_OPTION_WITH_MARSHALLING( \ 2961 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2962 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2963 #include "clang/Driver/Options.inc" 2964 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2965 2966 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2967 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2968 2969 // Canonicalize -fmodules-cache-path before storing it. 2970 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2971 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2972 if (WorkingDir.empty()) 2973 llvm::sys::fs::make_absolute(P); 2974 else 2975 llvm::sys::fs::make_absolute(WorkingDir, P); 2976 } 2977 llvm::sys::path::remove_dots(P); 2978 Opts.ModuleCachePath = std::string(P.str()); 2979 2980 // Only the -fmodule-file=<name>=<file> form. 2981 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2982 StringRef Val = A->getValue(); 2983 if (Val.find('=') != StringRef::npos){ 2984 auto Split = Val.split('='); 2985 Opts.PrebuiltModuleFiles.insert( 2986 {std::string(Split.first), std::string(Split.second)}); 2987 } 2988 } 2989 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2990 Opts.AddPrebuiltModulePath(A->getValue()); 2991 2992 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2993 StringRef MacroDef = A->getValue(); 2994 Opts.ModulesIgnoreMacros.insert( 2995 llvm::CachedHashString(MacroDef.split('=').first)); 2996 } 2997 2998 // Add -I..., -F..., and -index-header-map options in order. 2999 bool IsIndexHeaderMap = false; 3000 bool IsSysrootSpecified = 3001 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3002 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3003 if (A->getOption().matches(OPT_index_header_map)) { 3004 // -index-header-map applies to the next -I or -F. 3005 IsIndexHeaderMap = true; 3006 continue; 3007 } 3008 3009 frontend::IncludeDirGroup Group = 3010 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3011 3012 bool IsFramework = A->getOption().matches(OPT_F); 3013 std::string Path = A->getValue(); 3014 3015 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3016 SmallString<32> Buffer; 3017 llvm::sys::path::append(Buffer, Opts.Sysroot, 3018 llvm::StringRef(A->getValue()).substr(1)); 3019 Path = std::string(Buffer.str()); 3020 } 3021 3022 Opts.AddPath(Path, Group, IsFramework, 3023 /*IgnoreSysroot*/ true); 3024 IsIndexHeaderMap = false; 3025 } 3026 3027 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3028 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3029 for (const auto *A : 3030 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3031 if (A->getOption().matches(OPT_iprefix)) 3032 Prefix = A->getValue(); 3033 else if (A->getOption().matches(OPT_iwithprefix)) 3034 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3035 else 3036 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3037 } 3038 3039 for (const auto *A : Args.filtered(OPT_idirafter)) 3040 Opts.AddPath(A->getValue(), frontend::After, false, true); 3041 for (const auto *A : Args.filtered(OPT_iquote)) 3042 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3043 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3044 Opts.AddPath(A->getValue(), frontend::System, false, 3045 !A->getOption().matches(OPT_iwithsysroot)); 3046 for (const auto *A : Args.filtered(OPT_iframework)) 3047 Opts.AddPath(A->getValue(), frontend::System, true, true); 3048 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3049 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3050 /*IgnoreSysRoot=*/false); 3051 3052 // Add the paths for the various language specific isystem flags. 3053 for (const auto *A : Args.filtered(OPT_c_isystem)) 3054 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3055 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3056 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3057 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3058 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3059 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3060 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3061 3062 // Add the internal paths from a driver that detects standard include paths. 3063 for (const auto *A : 3064 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3065 frontend::IncludeDirGroup Group = frontend::System; 3066 if (A->getOption().matches(OPT_internal_externc_isystem)) 3067 Group = frontend::ExternCSystem; 3068 Opts.AddPath(A->getValue(), Group, false, true); 3069 } 3070 3071 // Add the path prefixes which are implicitly treated as being system headers. 3072 for (const auto *A : 3073 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3074 Opts.AddSystemHeaderPrefix( 3075 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3076 3077 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3078 Opts.AddVFSOverlayFile(A->getValue()); 3079 3080 return Diags.getNumErrors() == NumErrorsBefore; 3081 } 3082 3083 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 3084 const llvm::Triple &T, 3085 std::vector<std::string> &Includes, 3086 LangStandard::Kind LangStd) { 3087 // Set some properties which depend solely on the input kind; it would be nice 3088 // to move these to the language standard, and have the driver resolve the 3089 // input kind + language standard. 3090 // 3091 // FIXME: Perhaps a better model would be for a single source file to have 3092 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 3093 // simultaneously active? 3094 if (IK.getLanguage() == Language::Asm) { 3095 Opts.AsmPreprocessor = 1; 3096 } else if (IK.isObjectiveC()) { 3097 Opts.ObjC = 1; 3098 } 3099 3100 if (LangStd == LangStandard::lang_unspecified) { 3101 // Based on the base language, pick one. 3102 switch (IK.getLanguage()) { 3103 case Language::Unknown: 3104 case Language::LLVM_IR: 3105 llvm_unreachable("Invalid input kind!"); 3106 case Language::OpenCL: 3107 LangStd = LangStandard::lang_opencl12; 3108 break; 3109 case Language::OpenCLCXX: 3110 LangStd = LangStandard::lang_openclcpp10; 3111 break; 3112 case Language::CUDA: 3113 LangStd = LangStandard::lang_cuda; 3114 break; 3115 case Language::Asm: 3116 case Language::C: 3117 #if defined(CLANG_DEFAULT_STD_C) 3118 LangStd = CLANG_DEFAULT_STD_C; 3119 #else 3120 // The PS4 uses C99 as the default C standard. 3121 if (T.isPS4()) 3122 LangStd = LangStandard::lang_gnu99; 3123 else 3124 LangStd = LangStandard::lang_gnu17; 3125 #endif 3126 break; 3127 case Language::ObjC: 3128 #if defined(CLANG_DEFAULT_STD_C) 3129 LangStd = CLANG_DEFAULT_STD_C; 3130 #else 3131 LangStd = LangStandard::lang_gnu11; 3132 #endif 3133 break; 3134 case Language::CXX: 3135 case Language::ObjCXX: 3136 #if defined(CLANG_DEFAULT_STD_CXX) 3137 LangStd = CLANG_DEFAULT_STD_CXX; 3138 #else 3139 LangStd = LangStandard::lang_gnucxx14; 3140 #endif 3141 break; 3142 case Language::RenderScript: 3143 LangStd = LangStandard::lang_c99; 3144 break; 3145 case Language::HIP: 3146 LangStd = LangStandard::lang_hip; 3147 break; 3148 } 3149 } 3150 3151 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3152 Opts.LangStd = LangStd; 3153 Opts.LineComment = Std.hasLineComments(); 3154 Opts.C99 = Std.isC99(); 3155 Opts.C11 = Std.isC11(); 3156 Opts.C17 = Std.isC17(); 3157 Opts.C2x = Std.isC2x(); 3158 Opts.CPlusPlus = Std.isCPlusPlus(); 3159 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 3160 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 3161 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 3162 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 3163 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 3164 Opts.GNUMode = Std.isGNUMode(); 3165 Opts.GNUCVersion = 0; 3166 Opts.HexFloats = Std.hasHexFloats(); 3167 Opts.ImplicitInt = Std.hasImplicitInt(); 3168 3169 // Set OpenCL Version. 3170 Opts.OpenCL = Std.isOpenCL(); 3171 if (LangStd == LangStandard::lang_opencl10) 3172 Opts.OpenCLVersion = 100; 3173 else if (LangStd == LangStandard::lang_opencl11) 3174 Opts.OpenCLVersion = 110; 3175 else if (LangStd == LangStandard::lang_opencl12) 3176 Opts.OpenCLVersion = 120; 3177 else if (LangStd == LangStandard::lang_opencl20) 3178 Opts.OpenCLVersion = 200; 3179 else if (LangStd == LangStandard::lang_opencl30) 3180 Opts.OpenCLVersion = 300; 3181 else if (LangStd == LangStandard::lang_openclcpp10) 3182 Opts.OpenCLCPlusPlusVersion = 100; 3183 else if (LangStd == LangStandard::lang_openclcpp2021) 3184 Opts.OpenCLCPlusPlusVersion = 202100; 3185 3186 // OpenCL has some additional defaults. 3187 if (Opts.OpenCL) { 3188 Opts.AltiVec = 0; 3189 Opts.ZVector = 0; 3190 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3191 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 3192 Opts.OpenCLPipes = Opts.getOpenCLCompatibleVersion() == 200; 3193 Opts.OpenCLGenericAddressSpace = Opts.getOpenCLCompatibleVersion() == 200; 3194 3195 // Include default header file for OpenCL. 3196 if (Opts.IncludeDefaultHeader) { 3197 if (Opts.DeclareOpenCLBuiltins) { 3198 // Only include base header file for builtin types and constants. 3199 Includes.push_back("opencl-c-base.h"); 3200 } else { 3201 Includes.push_back("opencl-c.h"); 3202 } 3203 } 3204 } 3205 3206 Opts.HIP = IK.getLanguage() == Language::HIP; 3207 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 3208 if (Opts.HIP) { 3209 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 3210 // fuses multiplication/addition instructions without contract flag from 3211 // device library functions in LLVM bitcode, which causes accuracy loss in 3212 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 3213 // For device library functions in bitcode to work, 'Strict' or 'Standard' 3214 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 3215 // FP contract option is used to allow fuse across statements in frontend 3216 // whereas respecting contract flag in backend. 3217 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3218 } else if (Opts.CUDA) { 3219 // Allow fuse across statements disregarding pragmas. 3220 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3221 } 3222 3223 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 3224 3225 // OpenCL and C++ both have bool, true, false keywords. 3226 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 3227 3228 // OpenCL has half keyword 3229 Opts.Half = Opts.OpenCL; 3230 } 3231 3232 /// Check if input file kind and language standard are compatible. 3233 static bool IsInputCompatibleWithStandard(InputKind IK, 3234 const LangStandard &S) { 3235 switch (IK.getLanguage()) { 3236 case Language::Unknown: 3237 case Language::LLVM_IR: 3238 llvm_unreachable("should not parse language flags for this input"); 3239 3240 case Language::C: 3241 case Language::ObjC: 3242 case Language::RenderScript: 3243 return S.getLanguage() == Language::C; 3244 3245 case Language::OpenCL: 3246 return S.getLanguage() == Language::OpenCL || 3247 S.getLanguage() == Language::OpenCLCXX; 3248 3249 case Language::OpenCLCXX: 3250 return S.getLanguage() == Language::OpenCLCXX; 3251 3252 case Language::CXX: 3253 case Language::ObjCXX: 3254 return S.getLanguage() == Language::CXX; 3255 3256 case Language::CUDA: 3257 // FIXME: What -std= values should be permitted for CUDA compilations? 3258 return S.getLanguage() == Language::CUDA || 3259 S.getLanguage() == Language::CXX; 3260 3261 case Language::HIP: 3262 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3263 3264 case Language::Asm: 3265 // Accept (and ignore) all -std= values. 3266 // FIXME: The -std= value is not ignored; it affects the tokenization 3267 // and preprocessing rules if we're preprocessing this asm input. 3268 return true; 3269 } 3270 3271 llvm_unreachable("unexpected input language"); 3272 } 3273 3274 /// Get language name for given input kind. 3275 static const StringRef GetInputKindName(InputKind IK) { 3276 switch (IK.getLanguage()) { 3277 case Language::C: 3278 return "C"; 3279 case Language::ObjC: 3280 return "Objective-C"; 3281 case Language::CXX: 3282 return "C++"; 3283 case Language::ObjCXX: 3284 return "Objective-C++"; 3285 case Language::OpenCL: 3286 return "OpenCL"; 3287 case Language::OpenCLCXX: 3288 return "C++ for OpenCL"; 3289 case Language::CUDA: 3290 return "CUDA"; 3291 case Language::RenderScript: 3292 return "RenderScript"; 3293 case Language::HIP: 3294 return "HIP"; 3295 3296 case Language::Asm: 3297 return "Asm"; 3298 case Language::LLVM_IR: 3299 return "LLVM IR"; 3300 3301 case Language::Unknown: 3302 break; 3303 } 3304 llvm_unreachable("unknown input language"); 3305 } 3306 3307 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3308 SmallVectorImpl<const char *> &Args, 3309 StringAllocator SA, 3310 const llvm::Triple &T, InputKind IK) { 3311 if (IK.getFormat() == InputKind::Precompiled || 3312 IK.getLanguage() == Language::LLVM_IR) { 3313 if (Opts.ObjCAutoRefCount) 3314 GenerateArg(Args, OPT_fobjc_arc, SA); 3315 if (Opts.PICLevel != 0) 3316 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3317 if (Opts.PIE) 3318 GenerateArg(Args, OPT_pic_is_pie, SA); 3319 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3320 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3321 3322 return; 3323 } 3324 3325 OptSpecifier StdOpt; 3326 switch (Opts.LangStd) { 3327 case LangStandard::lang_opencl10: 3328 case LangStandard::lang_opencl11: 3329 case LangStandard::lang_opencl12: 3330 case LangStandard::lang_opencl20: 3331 case LangStandard::lang_opencl30: 3332 case LangStandard::lang_openclcpp10: 3333 case LangStandard::lang_openclcpp2021: 3334 StdOpt = OPT_cl_std_EQ; 3335 break; 3336 default: 3337 StdOpt = OPT_std_EQ; 3338 break; 3339 } 3340 3341 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3342 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3343 3344 if (Opts.IncludeDefaultHeader) 3345 GenerateArg(Args, OPT_finclude_default_header, SA); 3346 if (Opts.DeclareOpenCLBuiltins) 3347 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3348 3349 const LangOptions *LangOpts = &Opts; 3350 3351 #define LANG_OPTION_WITH_MARSHALLING( \ 3352 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3353 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3354 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3355 MERGER, EXTRACTOR, TABLE_INDEX) \ 3356 GENERATE_OPTION_WITH_MARSHALLING( \ 3357 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3358 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3359 #include "clang/Driver/Options.inc" 3360 #undef LANG_OPTION_WITH_MARSHALLING 3361 3362 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3363 3364 if (Opts.ObjC) { 3365 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3366 3367 if (Opts.GC == LangOptions::GCOnly) 3368 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3369 else if (Opts.GC == LangOptions::HybridGC) 3370 GenerateArg(Args, OPT_fobjc_gc, SA); 3371 else if (Opts.ObjCAutoRefCount == 1) 3372 GenerateArg(Args, OPT_fobjc_arc, SA); 3373 3374 if (Opts.ObjCWeakRuntime) 3375 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3376 3377 if (Opts.ObjCWeak) 3378 GenerateArg(Args, OPT_fobjc_weak, SA); 3379 3380 if (Opts.ObjCSubscriptingLegacyRuntime) 3381 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3382 } 3383 3384 if (Opts.GNUCVersion != 0) { 3385 unsigned Major = Opts.GNUCVersion / 100 / 100; 3386 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3387 unsigned Patch = Opts.GNUCVersion % 100; 3388 GenerateArg(Args, OPT_fgnuc_version_EQ, 3389 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3390 } 3391 3392 if (Opts.IgnoreXCOFFVisibility) 3393 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3394 3395 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3396 GenerateArg(Args, OPT_ftrapv, SA); 3397 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3398 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3399 GenerateArg(Args, OPT_fwrapv, SA); 3400 } 3401 3402 if (Opts.MSCompatibilityVersion != 0) { 3403 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3404 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3405 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3406 GenerateArg(Args, OPT_fms_compatibility_version, 3407 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3408 } 3409 3410 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3411 if (!Opts.Trigraphs) 3412 GenerateArg(Args, OPT_fno_trigraphs, SA); 3413 } else { 3414 if (Opts.Trigraphs) 3415 GenerateArg(Args, OPT_ftrigraphs, SA); 3416 } 3417 3418 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3419 GenerateArg(Args, OPT_fblocks, SA); 3420 3421 if (Opts.ConvergentFunctions && 3422 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3423 GenerateArg(Args, OPT_fconvergent_functions, SA); 3424 3425 if (Opts.NoBuiltin && !Opts.Freestanding) 3426 GenerateArg(Args, OPT_fno_builtin, SA); 3427 3428 if (!Opts.NoBuiltin) 3429 for (const auto &Func : Opts.NoBuiltinFuncs) 3430 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3431 3432 if (Opts.LongDoubleSize == 128) 3433 GenerateArg(Args, OPT_mlong_double_128, SA); 3434 else if (Opts.LongDoubleSize == 64) 3435 GenerateArg(Args, OPT_mlong_double_64, SA); 3436 3437 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3438 3439 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3440 // '-fopenmp-targets='. 3441 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3442 GenerateArg(Args, OPT_fopenmp, SA); 3443 3444 if (Opts.OpenMP != 50) 3445 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3446 3447 if (!Opts.OpenMPUseTLS) 3448 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3449 3450 if (Opts.OpenMPIsDevice) 3451 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3452 3453 if (Opts.OpenMPIRBuilder) 3454 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3455 } 3456 3457 if (Opts.OpenMPSimd) { 3458 GenerateArg(Args, OPT_fopenmp_simd, SA); 3459 3460 if (Opts.OpenMP != 50) 3461 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3462 } 3463 3464 if (Opts.OpenMPTargetNewRuntime) 3465 GenerateArg(Args, OPT_fopenmp_target_new_runtime, SA); 3466 3467 if (Opts.OpenMPTargetDebug != 0) 3468 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3469 Twine(Opts.OpenMPTargetDebug), SA); 3470 3471 if (Opts.OpenMPCUDANumSMs != 0) 3472 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3473 Twine(Opts.OpenMPCUDANumSMs), SA); 3474 3475 if (Opts.OpenMPCUDABlocksPerSM != 0) 3476 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3477 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3478 3479 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3480 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3481 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3482 3483 if (!Opts.OMPTargetTriples.empty()) { 3484 std::string Targets; 3485 llvm::raw_string_ostream OS(Targets); 3486 llvm::interleave( 3487 Opts.OMPTargetTriples, OS, 3488 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3489 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3490 } 3491 3492 if (!Opts.OMPHostIRFile.empty()) 3493 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3494 3495 if (Opts.OpenMPCUDAMode) 3496 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3497 3498 if (Opts.OpenMPCUDAForceFullRuntime) 3499 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3500 3501 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3502 // generated from CodeGenOptions. 3503 3504 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3505 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3506 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3507 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3508 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3509 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3510 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3511 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3512 3513 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3514 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3515 3516 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3517 for (const std::string &F : Opts.NoSanitizeFiles) 3518 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3519 3520 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3521 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3522 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3523 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3524 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3525 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3526 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3527 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3528 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3529 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3530 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3531 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3532 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3533 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3534 3535 if (Opts.getSignReturnAddressScope() == 3536 LangOptions::SignReturnAddressScopeKind::All) 3537 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3538 else if (Opts.getSignReturnAddressScope() == 3539 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3540 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3541 3542 if (Opts.getSignReturnAddressKey() == 3543 LangOptions::SignReturnAddressKeyKind::BKey) 3544 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3545 3546 if (Opts.CXXABI) 3547 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3548 SA); 3549 3550 if (Opts.RelativeCXXABIVTables) 3551 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3552 else 3553 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3554 3555 for (const auto &MP : Opts.MacroPrefixMap) 3556 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3557 } 3558 3559 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3560 InputKind IK, const llvm::Triple &T, 3561 std::vector<std::string> &Includes, 3562 DiagnosticsEngine &Diags) { 3563 unsigned NumErrorsBefore = Diags.getNumErrors(); 3564 3565 if (IK.getFormat() == InputKind::Precompiled || 3566 IK.getLanguage() == Language::LLVM_IR) { 3567 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3568 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3569 // what the input type is. 3570 if (Args.hasArg(OPT_fobjc_arc)) 3571 Opts.ObjCAutoRefCount = 1; 3572 // PICLevel and PIELevel are needed during code generation and this should 3573 // be set regardless of the input type. 3574 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3575 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3576 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3577 Diags, Opts.Sanitize); 3578 3579 return Diags.getNumErrors() == NumErrorsBefore; 3580 } 3581 3582 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3583 // FIXME: Should we really be parsing this for an Language::Asm input? 3584 3585 // FIXME: Cleanup per-file based stuff. 3586 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3587 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3588 LangStd = LangStandard::getLangKind(A->getValue()); 3589 if (LangStd == LangStandard::lang_unspecified) { 3590 Diags.Report(diag::err_drv_invalid_value) 3591 << A->getAsString(Args) << A->getValue(); 3592 // Report supported standards with short description. 3593 for (unsigned KindValue = 0; 3594 KindValue != LangStandard::lang_unspecified; 3595 ++KindValue) { 3596 const LangStandard &Std = LangStandard::getLangStandardForKind( 3597 static_cast<LangStandard::Kind>(KindValue)); 3598 if (IsInputCompatibleWithStandard(IK, Std)) { 3599 auto Diag = Diags.Report(diag::note_drv_use_standard); 3600 Diag << Std.getName() << Std.getDescription(); 3601 unsigned NumAliases = 0; 3602 #define LANGSTANDARD(id, name, lang, desc, features) 3603 #define LANGSTANDARD_ALIAS(id, alias) \ 3604 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3605 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3606 #include "clang/Basic/LangStandards.def" 3607 Diag << NumAliases; 3608 #define LANGSTANDARD(id, name, lang, desc, features) 3609 #define LANGSTANDARD_ALIAS(id, alias) \ 3610 if (KindValue == LangStandard::lang_##id) Diag << alias; 3611 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3612 #include "clang/Basic/LangStandards.def" 3613 } 3614 } 3615 } else { 3616 // Valid standard, check to make sure language and standard are 3617 // compatible. 3618 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3619 if (!IsInputCompatibleWithStandard(IK, Std)) { 3620 Diags.Report(diag::err_drv_argument_not_allowed_with) 3621 << A->getAsString(Args) << GetInputKindName(IK); 3622 } 3623 } 3624 } 3625 3626 // -cl-std only applies for OpenCL language standards. 3627 // Override the -std option in this case. 3628 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3629 LangStandard::Kind OpenCLLangStd 3630 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3631 .Cases("cl", "CL", LangStandard::lang_opencl10) 3632 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3633 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3634 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3635 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3636 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3637 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3638 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3639 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3640 .Default(LangStandard::lang_unspecified); 3641 3642 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3643 Diags.Report(diag::err_drv_invalid_value) 3644 << A->getAsString(Args) << A->getValue(); 3645 } 3646 else 3647 LangStd = OpenCLLangStd; 3648 } 3649 3650 // These need to be parsed now. They are used to set OpenCL defaults. 3651 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3652 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3653 3654 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd); 3655 3656 // The key paths of codegen options defined in Options.td start with 3657 // "LangOpts->". Let's provide the expected variable name and type. 3658 LangOptions *LangOpts = &Opts; 3659 3660 #define LANG_OPTION_WITH_MARSHALLING( \ 3661 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3662 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3663 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3664 MERGER, EXTRACTOR, TABLE_INDEX) \ 3665 PARSE_OPTION_WITH_MARSHALLING( \ 3666 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3667 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3668 #include "clang/Driver/Options.inc" 3669 #undef LANG_OPTION_WITH_MARSHALLING 3670 3671 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3672 StringRef Name = A->getValue(); 3673 if (Name == "full" || Name == "branch") { 3674 Opts.CFProtectionBranch = 1; 3675 } 3676 } 3677 3678 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3679 !Args.hasArg(OPT_sycl_std_EQ)) { 3680 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3681 // provide -sycl-std=, we want to default it to whatever the default SYCL 3682 // version is. I could not find a way to express this with the options 3683 // tablegen because we still want this value to be SYCL_None when the user 3684 // is not in device or host mode. 3685 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3686 } 3687 3688 if (Opts.ObjC) { 3689 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3690 StringRef value = arg->getValue(); 3691 if (Opts.ObjCRuntime.tryParse(value)) 3692 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3693 } 3694 3695 if (Args.hasArg(OPT_fobjc_gc_only)) 3696 Opts.setGC(LangOptions::GCOnly); 3697 else if (Args.hasArg(OPT_fobjc_gc)) 3698 Opts.setGC(LangOptions::HybridGC); 3699 else if (Args.hasArg(OPT_fobjc_arc)) { 3700 Opts.ObjCAutoRefCount = 1; 3701 if (!Opts.ObjCRuntime.allowsARC()) 3702 Diags.Report(diag::err_arc_unsupported_on_runtime); 3703 } 3704 3705 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3706 // whether the feature is actually enabled. This is predominantly 3707 // determined by -fobjc-runtime, but we allow it to be overridden 3708 // from the command line for testing purposes. 3709 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3710 Opts.ObjCWeakRuntime = 1; 3711 else 3712 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3713 3714 // ObjCWeak determines whether __weak is actually enabled. 3715 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3716 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3717 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3718 assert(!Opts.ObjCWeak); 3719 } else if (Opts.getGC() != LangOptions::NonGC) { 3720 Diags.Report(diag::err_objc_weak_with_gc); 3721 } else if (!Opts.ObjCWeakRuntime) { 3722 Diags.Report(diag::err_objc_weak_unsupported); 3723 } else { 3724 Opts.ObjCWeak = 1; 3725 } 3726 } else if (Opts.ObjCAutoRefCount) { 3727 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3728 } 3729 3730 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3731 Opts.ObjCSubscriptingLegacyRuntime = 3732 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3733 } 3734 3735 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3736 // Check that the version has 1 to 3 components and the minor and patch 3737 // versions fit in two decimal digits. 3738 VersionTuple GNUCVer; 3739 bool Invalid = GNUCVer.tryParse(A->getValue()); 3740 unsigned Major = GNUCVer.getMajor(); 3741 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3742 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3743 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3744 Diags.Report(diag::err_drv_invalid_value) 3745 << A->getAsString(Args) << A->getValue(); 3746 } 3747 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3748 } 3749 3750 // In AIX OS, the -mignore-xcoff-visibility is enable by default if there is 3751 // no -fvisibility=* option. 3752 // This is the reason why '-fvisibility' needs to be always generated: 3753 // its absence implies '-mignore-xcoff-visibility'. 3754 // 3755 // Suppose the original cc1 command line does contain '-fvisibility default': 3756 // '-mignore-xcoff-visibility' should not be implied. 3757 // * If '-fvisibility' is not generated (as most options with default values 3758 // don't), its absence would imply '-mignore-xcoff-visibility'. This changes 3759 // the command line semantics. 3760 // * If '-fvisibility' is generated regardless of its presence and value, 3761 // '-mignore-xcoff-visibility' won't be implied and the command line 3762 // semantics are kept intact. 3763 // 3764 // When the original cc1 command line does **not** contain '-fvisibility', 3765 // '-mignore-xcoff-visibility' is implied. The generated command line will 3766 // contain both '-fvisibility default' and '-mignore-xcoff-visibility' and 3767 // subsequent calls to `CreateFromArgs`/`generateCC1CommandLine` will always 3768 // produce the same arguments. 3769 3770 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 3771 !Args.hasArg(OPT_fvisibility))) 3772 Opts.IgnoreXCOFFVisibility = 1; 3773 3774 if (Args.hasArg(OPT_ftrapv)) { 3775 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3776 // Set the handler, if one is specified. 3777 Opts.OverflowHandler = 3778 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3779 } 3780 else if (Args.hasArg(OPT_fwrapv)) 3781 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3782 3783 Opts.MSCompatibilityVersion = 0; 3784 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3785 VersionTuple VT; 3786 if (VT.tryParse(A->getValue())) 3787 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3788 << A->getValue(); 3789 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3790 VT.getMinor().getValueOr(0) * 100000 + 3791 VT.getSubminor().getValueOr(0); 3792 } 3793 3794 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3795 // is specified, or -std is set to a conforming mode. 3796 // Trigraphs are disabled by default in c++1z onwards. 3797 // For z/OS, trigraphs are enabled by default (without regard to the above). 3798 Opts.Trigraphs = 3799 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3800 Opts.Trigraphs = 3801 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3802 3803 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3804 && Opts.OpenCLVersion == 200); 3805 3806 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3807 Opts.SYCLIsDevice || 3808 Args.hasArg(OPT_fconvergent_functions); 3809 3810 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3811 if (!Opts.NoBuiltin) 3812 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3813 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3814 ? 128 3815 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3816 if (Opts.FastRelaxedMath) 3817 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3818 llvm::sort(Opts.ModuleFeatures); 3819 3820 // -mrtd option 3821 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3822 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3823 Diags.Report(diag::err_drv_argument_not_allowed_with) 3824 << A->getSpelling() << "-fdefault-calling-conv"; 3825 else { 3826 if (T.getArch() != llvm::Triple::x86) 3827 Diags.Report(diag::err_drv_argument_not_allowed_with) 3828 << A->getSpelling() << T.getTriple(); 3829 else 3830 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3831 } 3832 } 3833 3834 // Check if -fopenmp is specified and set default version to 5.0. 3835 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3836 // Check if -fopenmp-simd is specified. 3837 bool IsSimdSpecified = 3838 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3839 /*Default=*/false); 3840 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3841 Opts.OpenMPUseTLS = 3842 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3843 Opts.OpenMPIsDevice = 3844 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3845 Opts.OpenMPIRBuilder = 3846 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3847 bool IsTargetSpecified = 3848 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3849 Opts.OpenMPTargetNewRuntime = 3850 Opts.OpenMPIsDevice && 3851 Args.hasArg(options::OPT_fopenmp_target_new_runtime); 3852 3853 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3854 3855 if (Opts.OpenMP || Opts.OpenMPSimd) { 3856 if (int Version = getLastArgIntValue( 3857 Args, OPT_fopenmp_version_EQ, 3858 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3859 Opts.OpenMP = Version; 3860 // Provide diagnostic when a given target is not expected to be an OpenMP 3861 // device or host. 3862 if (!Opts.OpenMPIsDevice) { 3863 switch (T.getArch()) { 3864 default: 3865 break; 3866 // Add unsupported host targets here: 3867 case llvm::Triple::nvptx: 3868 case llvm::Triple::nvptx64: 3869 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3870 break; 3871 } 3872 } 3873 } 3874 3875 // Set the flag to prevent the implementation from emitting device exception 3876 // handling code for those requiring so. 3877 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3878 Opts.OpenCLCPlusPlus) { 3879 3880 Opts.Exceptions = 0; 3881 Opts.CXXExceptions = 0; 3882 } 3883 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3884 Opts.OpenMPCUDANumSMs = 3885 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3886 Opts.OpenMPCUDANumSMs, Diags); 3887 Opts.OpenMPCUDABlocksPerSM = 3888 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3889 Opts.OpenMPCUDABlocksPerSM, Diags); 3890 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3891 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3892 Opts.OpenMPCUDAReductionBufNum, Diags); 3893 } 3894 3895 // Set the value of the debugging flag used in the new offloading device RTL. 3896 // Set either by a specific value or to a default if not specified. 3897 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 3898 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 3899 if (Opts.OpenMPTargetNewRuntime) { 3900 Opts.OpenMPTargetDebug = getLastArgIntValue( 3901 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 3902 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 3903 Opts.OpenMPTargetDebug = 1; 3904 } else { 3905 Diags.Report(diag::err_drv_debug_no_new_runtime); 3906 } 3907 } 3908 3909 // Get the OpenMP target triples if any. 3910 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3911 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3912 auto getArchPtrSize = [](const llvm::Triple &T) { 3913 if (T.isArch16Bit()) 3914 return Arch16Bit; 3915 if (T.isArch32Bit()) 3916 return Arch32Bit; 3917 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3918 return Arch64Bit; 3919 }; 3920 3921 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3922 llvm::Triple TT(A->getValue(i)); 3923 3924 if (TT.getArch() == llvm::Triple::UnknownArch || 3925 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3926 TT.getArch() == llvm::Triple::nvptx || 3927 TT.getArch() == llvm::Triple::nvptx64 || 3928 TT.getArch() == llvm::Triple::amdgcn || 3929 TT.getArch() == llvm::Triple::x86 || 3930 TT.getArch() == llvm::Triple::x86_64)) 3931 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3932 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3933 Diags.Report(diag::err_drv_incompatible_omp_arch) 3934 << A->getValue(i) << T.str(); 3935 else 3936 Opts.OMPTargetTriples.push_back(TT); 3937 } 3938 } 3939 3940 // Get OpenMP host file path if any and report if a non existent file is 3941 // found 3942 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3943 Opts.OMPHostIRFile = A->getValue(); 3944 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3945 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3946 << Opts.OMPHostIRFile; 3947 } 3948 3949 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3950 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3951 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3952 3953 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3954 Opts.OpenMPCUDAForceFullRuntime = 3955 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3956 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3957 3958 // FIXME: Eliminate this dependency. 3959 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3960 OptSize = getOptimizationLevelSize(Args); 3961 Opts.Optimize = Opt != 0; 3962 Opts.OptimizeSize = OptSize != 0; 3963 3964 // This is the __NO_INLINE__ define, which just depends on things like the 3965 // optimization level and -fno-inline, not actually whether the backend has 3966 // inlining enabled. 3967 Opts.NoInlineDefine = !Opts.Optimize; 3968 if (Arg *InlineArg = Args.getLastArg( 3969 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3970 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3971 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3972 Opts.NoInlineDefine = true; 3973 3974 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3975 StringRef Val = A->getValue(); 3976 if (Val == "fast") 3977 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3978 else if (Val == "on") 3979 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3980 else if (Val == "off") 3981 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3982 else if (Val == "fast-honor-pragmas") 3983 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3984 else 3985 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3986 } 3987 3988 // Parse -fsanitize= arguments. 3989 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3990 Diags, Opts.Sanitize); 3991 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 3992 std::vector<std::string> systemIgnorelists = 3993 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 3994 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3995 systemIgnorelists.begin(), 3996 systemIgnorelists.end()); 3997 3998 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3999 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4000 4001 StringRef Ver = A->getValue(); 4002 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4003 unsigned Major, Minor = 0; 4004 4005 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4006 // y or y.0 (4 <= y <= current version). 4007 if (!VerParts.first.startswith("0") && 4008 !VerParts.first.getAsInteger(10, Major) && 4009 3 <= Major && Major <= CLANG_VERSION_MAJOR && 4010 (Major == 3 ? VerParts.second.size() == 1 && 4011 !VerParts.second.getAsInteger(10, Minor) 4012 : VerParts.first.size() == Ver.size() || 4013 VerParts.second == "0")) { 4014 // Got a valid version number. 4015 if (Major == 3 && Minor <= 8) 4016 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4017 else if (Major <= 4) 4018 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4019 else if (Major <= 6) 4020 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4021 else if (Major <= 7) 4022 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4023 else if (Major <= 9) 4024 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4025 else if (Major <= 11) 4026 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4027 else if (Major <= 12) 4028 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4029 } else if (Ver != "latest") { 4030 Diags.Report(diag::err_drv_invalid_value) 4031 << A->getAsString(Args) << A->getValue(); 4032 } 4033 } 4034 4035 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4036 StringRef SignScope = A->getValue(); 4037 4038 if (SignScope.equals_insensitive("none")) 4039 Opts.setSignReturnAddressScope( 4040 LangOptions::SignReturnAddressScopeKind::None); 4041 else if (SignScope.equals_insensitive("all")) 4042 Opts.setSignReturnAddressScope( 4043 LangOptions::SignReturnAddressScopeKind::All); 4044 else if (SignScope.equals_insensitive("non-leaf")) 4045 Opts.setSignReturnAddressScope( 4046 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4047 else 4048 Diags.Report(diag::err_drv_invalid_value) 4049 << A->getAsString(Args) << SignScope; 4050 4051 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4052 StringRef SignKey = A->getValue(); 4053 if (!SignScope.empty() && !SignKey.empty()) { 4054 if (SignKey.equals_insensitive("a_key")) 4055 Opts.setSignReturnAddressKey( 4056 LangOptions::SignReturnAddressKeyKind::AKey); 4057 else if (SignKey.equals_insensitive("b_key")) 4058 Opts.setSignReturnAddressKey( 4059 LangOptions::SignReturnAddressKeyKind::BKey); 4060 else 4061 Diags.Report(diag::err_drv_invalid_value) 4062 << A->getAsString(Args) << SignKey; 4063 } 4064 } 4065 } 4066 4067 // The value can be empty, which indicates the system default should be used. 4068 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4069 if (!CXXABI.empty()) { 4070 if (!TargetCXXABI::isABI(CXXABI)) { 4071 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4072 } else { 4073 auto Kind = TargetCXXABI::getKind(CXXABI); 4074 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4075 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4076 else 4077 Opts.CXXABI = Kind; 4078 } 4079 } 4080 4081 Opts.RelativeCXXABIVTables = 4082 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4083 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4084 TargetCXXABI::usesRelativeVTables(T)); 4085 4086 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4087 auto Split = StringRef(A).split('='); 4088 Opts.MacroPrefixMap.insert( 4089 {std::string(Split.first), std::string(Split.second)}); 4090 } 4091 4092 return Diags.getNumErrors() == NumErrorsBefore; 4093 } 4094 4095 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4096 switch (Action) { 4097 case frontend::ASTDeclList: 4098 case frontend::ASTDump: 4099 case frontend::ASTPrint: 4100 case frontend::ASTView: 4101 case frontend::EmitAssembly: 4102 case frontend::EmitBC: 4103 case frontend::EmitHTML: 4104 case frontend::EmitLLVM: 4105 case frontend::EmitLLVMOnly: 4106 case frontend::EmitCodeGenOnly: 4107 case frontend::EmitObj: 4108 case frontend::FixIt: 4109 case frontend::GenerateModule: 4110 case frontend::GenerateModuleInterface: 4111 case frontend::GenerateHeaderModule: 4112 case frontend::GeneratePCH: 4113 case frontend::GenerateInterfaceStubs: 4114 case frontend::ParseSyntaxOnly: 4115 case frontend::ModuleFileInfo: 4116 case frontend::VerifyPCH: 4117 case frontend::PluginAction: 4118 case frontend::RewriteObjC: 4119 case frontend::RewriteTest: 4120 case frontend::RunAnalysis: 4121 case frontend::TemplightDump: 4122 case frontend::MigrateSource: 4123 return false; 4124 4125 case frontend::DumpCompilerOptions: 4126 case frontend::DumpRawTokens: 4127 case frontend::DumpTokens: 4128 case frontend::InitOnly: 4129 case frontend::PrintPreamble: 4130 case frontend::PrintPreprocessedInput: 4131 case frontend::RewriteMacros: 4132 case frontend::RunPreprocessorOnly: 4133 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4134 return true; 4135 } 4136 llvm_unreachable("invalid frontend action"); 4137 } 4138 4139 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4140 SmallVectorImpl<const char *> &Args, 4141 CompilerInvocation::StringAllocator SA, 4142 const LangOptions &LangOpts, 4143 const FrontendOptions &FrontendOpts, 4144 const CodeGenOptions &CodeGenOpts) { 4145 PreprocessorOptions *PreprocessorOpts = &Opts; 4146 4147 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4148 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4149 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4150 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4151 MERGER, EXTRACTOR, TABLE_INDEX) \ 4152 GENERATE_OPTION_WITH_MARSHALLING( \ 4153 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4154 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4155 #include "clang/Driver/Options.inc" 4156 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4157 4158 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4159 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4160 4161 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4162 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4163 4164 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4165 GenerateArg(Args, OPT_preamble_bytes_EQ, 4166 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4167 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4168 SA); 4169 4170 for (const auto &M : Opts.Macros) { 4171 // Don't generate __CET__ macro definitions. They are implied by the 4172 // -fcf-protection option that is generated elsewhere. 4173 if (M.first == "__CET__=1" && !M.second && 4174 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4175 continue; 4176 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4177 !CodeGenOpts.CFProtectionBranch) 4178 continue; 4179 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4180 CodeGenOpts.CFProtectionBranch) 4181 continue; 4182 4183 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4184 } 4185 4186 for (const auto &I : Opts.Includes) { 4187 // Don't generate OpenCL includes. They are implied by other flags that are 4188 // generated elsewhere. 4189 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4190 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4191 I == "opencl-c.h")) 4192 continue; 4193 4194 GenerateArg(Args, OPT_include, I, SA); 4195 } 4196 4197 for (const auto &CI : Opts.ChainedIncludes) 4198 GenerateArg(Args, OPT_chain_include, CI, SA); 4199 4200 for (const auto &RF : Opts.RemappedFiles) 4201 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4202 4203 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4204 // generated elsewhere. 4205 } 4206 4207 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4208 DiagnosticsEngine &Diags, 4209 frontend::ActionKind Action, 4210 const FrontendOptions &FrontendOpts) { 4211 unsigned NumErrorsBefore = Diags.getNumErrors(); 4212 4213 PreprocessorOptions *PreprocessorOpts = &Opts; 4214 4215 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4216 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4217 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4218 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4219 MERGER, EXTRACTOR, TABLE_INDEX) \ 4220 PARSE_OPTION_WITH_MARSHALLING( \ 4221 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4222 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4223 #include "clang/Driver/Options.inc" 4224 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4225 4226 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4227 Args.hasArg(OPT_pch_through_hdrstop_use); 4228 4229 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4230 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4231 4232 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4233 StringRef Value(A->getValue()); 4234 size_t Comma = Value.find(','); 4235 unsigned Bytes = 0; 4236 unsigned EndOfLine = 0; 4237 4238 if (Comma == StringRef::npos || 4239 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4240 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4241 Diags.Report(diag::err_drv_preamble_format); 4242 else { 4243 Opts.PrecompiledPreambleBytes.first = Bytes; 4244 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4245 } 4246 } 4247 4248 // Add the __CET__ macro if a CFProtection option is set. 4249 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4250 StringRef Name = A->getValue(); 4251 if (Name == "branch") 4252 Opts.addMacroDef("__CET__=1"); 4253 else if (Name == "return") 4254 Opts.addMacroDef("__CET__=2"); 4255 else if (Name == "full") 4256 Opts.addMacroDef("__CET__=3"); 4257 } 4258 4259 // Add macros from the command line. 4260 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4261 if (A->getOption().matches(OPT_D)) 4262 Opts.addMacroDef(A->getValue()); 4263 else 4264 Opts.addMacroUndef(A->getValue()); 4265 } 4266 4267 // Add the ordered list of -includes. 4268 for (const auto *A : Args.filtered(OPT_include)) 4269 Opts.Includes.emplace_back(A->getValue()); 4270 4271 for (const auto *A : Args.filtered(OPT_chain_include)) 4272 Opts.ChainedIncludes.emplace_back(A->getValue()); 4273 4274 for (const auto *A : Args.filtered(OPT_remap_file)) { 4275 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4276 4277 if (Split.second.empty()) { 4278 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4279 continue; 4280 } 4281 4282 Opts.addRemappedFile(Split.first, Split.second); 4283 } 4284 4285 // Always avoid lexing editor placeholders when we're just running the 4286 // preprocessor as we never want to emit the 4287 // "editor placeholder in source file" error in PP only mode. 4288 if (isStrictlyPreprocessorAction(Action)) 4289 Opts.LexEditorPlaceholders = false; 4290 4291 return Diags.getNumErrors() == NumErrorsBefore; 4292 } 4293 4294 static void GeneratePreprocessorOutputArgs( 4295 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4296 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4297 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4298 4299 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4300 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4301 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4302 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4303 MERGER, EXTRACTOR, TABLE_INDEX) \ 4304 GENERATE_OPTION_WITH_MARSHALLING( \ 4305 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4306 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4307 #include "clang/Driver/Options.inc" 4308 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4309 4310 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4311 if (Generate_dM) 4312 GenerateArg(Args, OPT_dM, SA); 4313 if (!Generate_dM && Opts.ShowMacros) 4314 GenerateArg(Args, OPT_dD, SA); 4315 } 4316 4317 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4318 ArgList &Args, DiagnosticsEngine &Diags, 4319 frontend::ActionKind Action) { 4320 unsigned NumErrorsBefore = Diags.getNumErrors(); 4321 4322 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4323 4324 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4325 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4326 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4327 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4328 MERGER, EXTRACTOR, TABLE_INDEX) \ 4329 PARSE_OPTION_WITH_MARSHALLING( \ 4330 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4331 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4332 #include "clang/Driver/Options.inc" 4333 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4334 4335 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4336 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4337 4338 return Diags.getNumErrors() == NumErrorsBefore; 4339 } 4340 4341 static void GenerateTargetArgs(const TargetOptions &Opts, 4342 SmallVectorImpl<const char *> &Args, 4343 CompilerInvocation::StringAllocator SA) { 4344 const TargetOptions *TargetOpts = &Opts; 4345 #define TARGET_OPTION_WITH_MARSHALLING( \ 4346 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4347 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4348 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4349 MERGER, EXTRACTOR, TABLE_INDEX) \ 4350 GENERATE_OPTION_WITH_MARSHALLING( \ 4351 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4352 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4353 #include "clang/Driver/Options.inc" 4354 #undef TARGET_OPTION_WITH_MARSHALLING 4355 4356 if (!Opts.SDKVersion.empty()) 4357 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4358 SA); 4359 } 4360 4361 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4362 DiagnosticsEngine &Diags) { 4363 unsigned NumErrorsBefore = Diags.getNumErrors(); 4364 4365 TargetOptions *TargetOpts = &Opts; 4366 4367 #define TARGET_OPTION_WITH_MARSHALLING( \ 4368 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4369 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4370 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4371 MERGER, EXTRACTOR, TABLE_INDEX) \ 4372 PARSE_OPTION_WITH_MARSHALLING( \ 4373 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4374 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4375 #include "clang/Driver/Options.inc" 4376 #undef TARGET_OPTION_WITH_MARSHALLING 4377 4378 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4379 llvm::VersionTuple Version; 4380 if (Version.tryParse(A->getValue())) 4381 Diags.Report(diag::err_drv_invalid_value) 4382 << A->getAsString(Args) << A->getValue(); 4383 else 4384 Opts.SDKVersion = Version; 4385 } 4386 4387 return Diags.getNumErrors() == NumErrorsBefore; 4388 } 4389 4390 bool CompilerInvocation::CreateFromArgsImpl( 4391 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4392 DiagnosticsEngine &Diags, const char *Argv0) { 4393 unsigned NumErrorsBefore = Diags.getNumErrors(); 4394 4395 // Parse the arguments. 4396 const OptTable &Opts = getDriverOptTable(); 4397 const unsigned IncludedFlagsBitmask = options::CC1Option; 4398 unsigned MissingArgIndex, MissingArgCount; 4399 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4400 MissingArgCount, IncludedFlagsBitmask); 4401 LangOptions &LangOpts = *Res.getLangOpts(); 4402 4403 // Check for missing argument error. 4404 if (MissingArgCount) 4405 Diags.Report(diag::err_drv_missing_argument) 4406 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4407 4408 // Issue errors on unknown arguments. 4409 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4410 auto ArgString = A->getAsString(Args); 4411 std::string Nearest; 4412 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4413 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4414 else 4415 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4416 << ArgString << Nearest; 4417 } 4418 4419 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4420 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4421 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4422 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4423 /*DefaultDiagColor=*/false); 4424 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4425 // FIXME: We shouldn't have to pass the DashX option around here 4426 InputKind DashX = Res.getFrontendOpts().DashX; 4427 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4428 llvm::Triple T(Res.getTargetOpts().Triple); 4429 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4430 Res.getFileSystemOpts().WorkingDir); 4431 4432 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4433 Diags); 4434 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4435 LangOpts.ObjCExceptions = 1; 4436 4437 if (LangOpts.CUDA) { 4438 // During CUDA device-side compilation, the aux triple is the 4439 // triple used for host compilation. 4440 if (LangOpts.CUDAIsDevice) 4441 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4442 } 4443 4444 // Set the triple of the host for OpenMP device compile. 4445 if (LangOpts.OpenMPIsDevice) 4446 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4447 4448 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4449 Res.getFrontendOpts().OutputFile, LangOpts); 4450 4451 // FIXME: Override value name discarding when asan or msan is used because the 4452 // backend passes depend on the name of the alloca in order to print out 4453 // names. 4454 Res.getCodeGenOpts().DiscardValueNames &= 4455 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4456 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4457 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4458 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4459 4460 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4461 Res.getFrontendOpts().ProgramAction, 4462 Res.getFrontendOpts()); 4463 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4464 Res.getFrontendOpts().ProgramAction); 4465 4466 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4467 Res.getFrontendOpts().ProgramAction, 4468 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4469 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4470 Res.getDependencyOutputOpts().Targets.empty()) 4471 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4472 4473 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4474 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4475 !Res.getLangOpts()->Sanitize.empty()) { 4476 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4477 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4478 } 4479 4480 // Store the command-line for using in the CodeView backend. 4481 Res.getCodeGenOpts().Argv0 = Argv0; 4482 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 4483 4484 FixupInvocation(Res, Diags, Args, DashX); 4485 4486 return Diags.getNumErrors() == NumErrorsBefore; 4487 } 4488 4489 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4490 ArrayRef<const char *> CommandLineArgs, 4491 DiagnosticsEngine &Diags, 4492 const char *Argv0) { 4493 CompilerInvocation DummyInvocation; 4494 4495 return RoundTrip( 4496 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4497 DiagnosticsEngine &Diags, const char *Argv0) { 4498 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4499 }, 4500 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4501 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4502 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4503 } 4504 4505 std::string CompilerInvocation::getModuleHash() const { 4506 // FIXME: Consider using SHA1 instead of MD5. 4507 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4508 4509 // Note: For QoI reasons, the things we use as a hash here should all be 4510 // dumped via the -module-info flag. 4511 4512 // Start the signature with the compiler version. 4513 HBuilder.add(getClangFullRepositoryVersion()); 4514 4515 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4516 // and getClangFullRepositoryVersion() doesn't include git revision. 4517 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4518 4519 // Extend the signature with the language options 4520 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4521 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4522 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4523 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4524 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4525 #include "clang/Basic/LangOptions.def" 4526 4527 HBuilder.addRange(LangOpts->ModuleFeatures); 4528 4529 HBuilder.add(LangOpts->ObjCRuntime); 4530 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4531 4532 // Extend the signature with the target options. 4533 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4534 TargetOpts->ABI); 4535 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4536 4537 // Extend the signature with preprocessor options. 4538 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4539 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4540 4541 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4542 for (const auto &Macro : getPreprocessorOpts().Macros) { 4543 // If we're supposed to ignore this macro for the purposes of modules, 4544 // don't put it into the hash. 4545 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4546 // Check whether we're ignoring this macro. 4547 StringRef MacroDef = Macro.first; 4548 if (hsOpts.ModulesIgnoreMacros.count( 4549 llvm::CachedHashString(MacroDef.split('=').first))) 4550 continue; 4551 } 4552 4553 HBuilder.add(Macro); 4554 } 4555 4556 // Extend the signature with the sysroot and other header search options. 4557 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4558 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4559 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4560 hsOpts.ModulesValidateDiagnosticOptions); 4561 HBuilder.add(hsOpts.ResourceDir); 4562 4563 if (hsOpts.ModulesStrictContextHash) { 4564 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4565 HBuilder.addRange(hsOpts.UserEntries); 4566 4567 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4568 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4569 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4570 HBuilder.add(diagOpts.get##Name()); 4571 #include "clang/Basic/DiagnosticOptions.def" 4572 #undef DIAGOPT 4573 #undef ENUM_DIAGOPT 4574 } 4575 4576 // Extend the signature with the user build path. 4577 HBuilder.add(hsOpts.ModuleUserBuildPath); 4578 4579 // Extend the signature with the module file extensions. 4580 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4581 ext->hashExtension(HBuilder); 4582 4583 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4584 // affects the debug info in the PCM. 4585 if (getCodeGenOpts().DebugTypeExtRefs) 4586 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4587 4588 // Extend the signature with the enabled sanitizers, if at least one is 4589 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4590 SanitizerSet SanHash = LangOpts->Sanitize; 4591 SanHash.clear(getPPTransparentSanitizers()); 4592 if (!SanHash.empty()) 4593 HBuilder.add(SanHash.Mask); 4594 4595 llvm::MD5::MD5Result Result; 4596 HBuilder.getHasher().final(Result); 4597 uint64_t Hash = Result.high() ^ Result.low(); 4598 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4599 } 4600 4601 void CompilerInvocation::generateCC1CommandLine( 4602 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4603 llvm::Triple T(TargetOpts->Triple); 4604 4605 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4606 GenerateMigratorArgs(MigratorOpts, Args, SA); 4607 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4608 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4609 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4610 GenerateTargetArgs(*TargetOpts, Args, SA); 4611 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4612 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4613 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4614 &*LangOpts); 4615 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4616 CodeGenOpts); 4617 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4618 FrontendOpts.ProgramAction); 4619 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4620 } 4621 4622 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4623 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4624 DiagnosticsEngine &Diags) { 4625 return createVFSFromCompilerInvocation(CI, Diags, 4626 llvm::vfs::getRealFileSystem()); 4627 } 4628 4629 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4630 clang::createVFSFromCompilerInvocation( 4631 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4632 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4633 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4634 return BaseFS; 4635 4636 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4637 // earlier vfs files are on the bottom 4638 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4639 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4640 Result->getBufferForFile(File); 4641 if (!Buffer) { 4642 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4643 continue; 4644 } 4645 4646 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4647 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4648 /*DiagContext*/ nullptr, Result); 4649 if (!FS) { 4650 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4651 continue; 4652 } 4653 4654 Result = FS; 4655 } 4656 return Result; 4657 } 4658