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, 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 = Args.hasArg(OPT_flto, OPT_flto_EQ); 1710 Opts.PrepareForThinLTO = false; 1711 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1712 StringRef S = A->getValue(); 1713 if (S == "thin") 1714 Opts.PrepareForThinLTO = true; 1715 else if (S != "full") 1716 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1717 } 1718 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1719 if (IK.getLanguage() != Language::LLVM_IR) 1720 Diags.Report(diag::err_drv_argument_only_allowed_with) 1721 << A->getAsString(Args) << "-x ir"; 1722 Opts.ThinLTOIndexFile = 1723 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1724 } 1725 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1726 Opts.SaveTempsFilePrefix = 1727 llvm::StringSwitch<std::string>(A->getValue()) 1728 .Case("obj", OutputFile) 1729 .Default(llvm::sys::path::filename(OutputFile).str()); 1730 1731 // The memory profile runtime appends the pid to make this name more unique. 1732 const char *MemProfileBasename = "memprof.profraw"; 1733 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1734 SmallString<128> Path( 1735 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1736 llvm::sys::path::append(Path, MemProfileBasename); 1737 Opts.MemoryProfileOutput = std::string(Path); 1738 } else if (Args.hasArg(OPT_fmemory_profile)) 1739 Opts.MemoryProfileOutput = MemProfileBasename; 1740 1741 memcpy(Opts.CoverageVersion, "408*", 4); 1742 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1743 if (Args.hasArg(OPT_coverage_version_EQ)) { 1744 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1745 if (CoverageVersion.size() != 4) { 1746 Diags.Report(diag::err_drv_invalid_value) 1747 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1748 << CoverageVersion; 1749 } else { 1750 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1751 } 1752 } 1753 } 1754 // FIXME: For backend options that are not yet recorded as function 1755 // attributes in the IR, keep track of them so we can embed them in a 1756 // separate data section and use them when building the bitcode. 1757 for (const auto &A : Args) { 1758 // Do not encode output and input. 1759 if (A->getOption().getID() == options::OPT_o || 1760 A->getOption().getID() == options::OPT_INPUT || 1761 A->getOption().getID() == options::OPT_x || 1762 A->getOption().getID() == options::OPT_fembed_bitcode || 1763 A->getOption().matches(options::OPT_W_Group)) 1764 continue; 1765 ArgStringList ASL; 1766 A->render(Args, ASL); 1767 for (const auto &arg : ASL) { 1768 StringRef ArgStr(arg); 1769 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1770 // using \00 to separate each commandline options. 1771 Opts.CmdArgs.push_back('\0'); 1772 } 1773 } 1774 1775 auto XRayInstrBundles = 1776 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1777 if (XRayInstrBundles.empty()) 1778 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1779 else 1780 for (const auto &A : XRayInstrBundles) 1781 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1782 Diags, Opts.XRayInstrumentationBundle); 1783 1784 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1785 StringRef Name = A->getValue(); 1786 if (Name == "full") { 1787 Opts.CFProtectionReturn = 1; 1788 Opts.CFProtectionBranch = 1; 1789 } else if (Name == "return") 1790 Opts.CFProtectionReturn = 1; 1791 else if (Name == "branch") 1792 Opts.CFProtectionBranch = 1; 1793 else if (Name != "none") 1794 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1795 } 1796 1797 for (auto *A : 1798 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1799 CodeGenOptions::BitcodeFileToLink F; 1800 F.Filename = A->getValue(); 1801 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1802 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1803 // When linking CUDA bitcode, propagate function attributes so that 1804 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1805 F.PropagateAttrs = true; 1806 F.Internalize = true; 1807 } 1808 Opts.LinkBitcodeFiles.push_back(F); 1809 } 1810 1811 if (Args.getLastArg(OPT_femulated_tls) || 1812 Args.getLastArg(OPT_fno_emulated_tls)) { 1813 Opts.ExplicitEmulatedTLS = true; 1814 } 1815 1816 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1817 if (T.isOSAIX()) { 1818 StringRef Name = A->getValue(); 1819 if (Name != "global-dynamic") 1820 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1821 } 1822 } 1823 1824 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1825 StringRef Val = A->getValue(); 1826 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1827 if (!Opts.FPDenormalMode.isValid()) 1828 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1829 } 1830 1831 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1832 StringRef Val = A->getValue(); 1833 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1834 if (!Opts.FP32DenormalMode.isValid()) 1835 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1836 } 1837 1838 // X86_32 has -fppc-struct-return and -freg-struct-return. 1839 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1840 if (Arg *A = 1841 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1842 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1843 // TODO: We might want to consider enabling these options on AIX in the 1844 // future. 1845 if (T.isOSAIX()) 1846 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1847 << A->getSpelling() << T.str(); 1848 1849 const Option &O = A->getOption(); 1850 if (O.matches(OPT_fpcc_struct_return) || 1851 O.matches(OPT_maix_struct_return)) { 1852 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1853 } else { 1854 assert(O.matches(OPT_freg_struct_return) || 1855 O.matches(OPT_msvr4_struct_return)); 1856 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1857 } 1858 } 1859 1860 if (Arg *A = 1861 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1862 if (!T.isOSAIX()) 1863 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1864 << A->getSpelling() << T.str(); 1865 1866 const Option &O = A->getOption(); 1867 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1868 } 1869 1870 bool NeedLocTracking = false; 1871 1872 if (!Opts.OptRecordFile.empty()) 1873 NeedLocTracking = true; 1874 1875 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1876 Opts.OptRecordPasses = A->getValue(); 1877 NeedLocTracking = true; 1878 } 1879 1880 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1881 Opts.OptRecordFormat = A->getValue(); 1882 NeedLocTracking = true; 1883 } 1884 1885 Opts.OptimizationRemark = 1886 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1887 1888 Opts.OptimizationRemarkMissed = 1889 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1890 1891 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1892 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1893 1894 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1895 Opts.OptimizationRemarkMissed.hasValidPattern() || 1896 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1897 1898 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1899 bool UsingProfile = UsingSampleProfile || 1900 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1901 1902 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1903 // An IR file will contain PGO as metadata 1904 IK.getLanguage() != Language::LLVM_IR) 1905 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1906 << "-fdiagnostics-show-hotness"; 1907 1908 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1909 if (auto *arg = 1910 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1911 auto ResultOrErr = 1912 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1913 1914 if (!ResultOrErr) { 1915 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1916 << "-fdiagnostics-hotness-threshold="; 1917 } else { 1918 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1919 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1920 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1921 !UsingProfile) 1922 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1923 << "-fdiagnostics-hotness-threshold="; 1924 } 1925 } 1926 1927 // If the user requested to use a sample profile for PGO, then the 1928 // backend will need to track source location information so the profile 1929 // can be incorporated into the IR. 1930 if (UsingSampleProfile) 1931 NeedLocTracking = true; 1932 1933 if (!Opts.StackUsageOutput.empty()) 1934 NeedLocTracking = true; 1935 1936 // If the user requested a flag that requires source locations available in 1937 // the backend, make sure that the backend tracks source location information. 1938 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1939 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1940 1941 // Parse -fsanitize-recover= arguments. 1942 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1943 parseSanitizerKinds("-fsanitize-recover=", 1944 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1945 Opts.SanitizeRecover); 1946 parseSanitizerKinds("-fsanitize-trap=", 1947 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1948 Opts.SanitizeTrap); 1949 1950 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1951 1952 if (Args.hasArg(options::OPT_ffinite_loops)) 1953 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 1954 else if (Args.hasArg(options::OPT_fno_finite_loops)) 1955 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 1956 1957 Opts.EmitIEEENaNCompliantInsts = 1958 Args.hasFlag(options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee); 1959 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 1960 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 1961 1962 return Diags.getNumErrors() == NumErrorsBefore; 1963 } 1964 1965 static void 1966 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 1967 SmallVectorImpl<const char *> &Args, 1968 CompilerInvocation::StringAllocator SA) { 1969 const DependencyOutputOptions &DependencyOutputOpts = Opts; 1970 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1971 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1972 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1973 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1974 MERGER, EXTRACTOR, TABLE_INDEX) \ 1975 GENERATE_OPTION_WITH_MARSHALLING( \ 1976 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1977 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1978 #include "clang/Driver/Options.inc" 1979 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 1980 1981 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 1982 GenerateArg(Args, OPT_show_includes, SA); 1983 1984 for (const auto &Dep : Opts.ExtraDeps) { 1985 switch (Dep.second) { 1986 case EDK_SanitizeIgnorelist: 1987 // Sanitizer ignorelist arguments are generated from LanguageOptions. 1988 continue; 1989 case EDK_ModuleFile: 1990 // Module file arguments are generated from FrontendOptions and 1991 // HeaderSearchOptions. 1992 continue; 1993 case EDK_ProfileList: 1994 // Profile list arguments are generated from LanguageOptions via the 1995 // marshalling infrastructure. 1996 continue; 1997 case EDK_DepFileEntry: 1998 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 1999 break; 2000 } 2001 } 2002 } 2003 2004 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2005 ArgList &Args, DiagnosticsEngine &Diags, 2006 frontend::ActionKind Action, 2007 bool ShowLineMarkers) { 2008 unsigned NumErrorsBefore = Diags.getNumErrors(); 2009 2010 DependencyOutputOptions &DependencyOutputOpts = Opts; 2011 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2012 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2013 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2014 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2015 MERGER, EXTRACTOR, TABLE_INDEX) \ 2016 PARSE_OPTION_WITH_MARSHALLING( \ 2017 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2018 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2019 #include "clang/Driver/Options.inc" 2020 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2021 2022 if (Args.hasArg(OPT_show_includes)) { 2023 // Writing both /showIncludes and preprocessor output to stdout 2024 // would produce interleaved output, so use stderr for /showIncludes. 2025 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2026 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2027 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2028 else 2029 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2030 } else { 2031 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2032 } 2033 2034 // Add sanitizer ignorelists as extra dependencies. 2035 // They won't be discovered by the regular preprocessor, so 2036 // we let make / ninja to know about this implicit dependency. 2037 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2038 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2039 StringRef Val = A->getValue(); 2040 if (Val.find('=') == StringRef::npos) 2041 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2042 } 2043 if (Opts.IncludeSystemHeaders) { 2044 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2045 StringRef Val = A->getValue(); 2046 if (Val.find('=') == StringRef::npos) 2047 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2048 } 2049 } 2050 } 2051 2052 // -fprofile-list= dependencies. 2053 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2054 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2055 2056 // Propagate the extra dependencies. 2057 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2058 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2059 2060 // Only the -fmodule-file=<file> form. 2061 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2062 StringRef Val = A->getValue(); 2063 if (Val.find('=') == StringRef::npos) 2064 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2065 } 2066 2067 return Diags.getNumErrors() == NumErrorsBefore; 2068 } 2069 2070 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2071 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2072 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2073 // Support both clang's -f[no-]color-diagnostics and gcc's 2074 // -f[no-]diagnostics-colors[=never|always|auto]. 2075 enum { 2076 Colors_On, 2077 Colors_Off, 2078 Colors_Auto 2079 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2080 for (auto *A : Args) { 2081 const Option &O = A->getOption(); 2082 if (O.matches(options::OPT_fcolor_diagnostics) || 2083 O.matches(options::OPT_fdiagnostics_color)) { 2084 ShowColors = Colors_On; 2085 } else if (O.matches(options::OPT_fno_color_diagnostics) || 2086 O.matches(options::OPT_fno_diagnostics_color)) { 2087 ShowColors = Colors_Off; 2088 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2089 StringRef Value(A->getValue()); 2090 if (Value == "always") 2091 ShowColors = Colors_On; 2092 else if (Value == "never") 2093 ShowColors = Colors_Off; 2094 else if (Value == "auto") 2095 ShowColors = Colors_Auto; 2096 } 2097 } 2098 return ShowColors == Colors_On || 2099 (ShowColors == Colors_Auto && 2100 llvm::sys::Process::StandardErrHasColors()); 2101 } 2102 2103 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2104 DiagnosticsEngine &Diags) { 2105 bool Success = true; 2106 for (const auto &Prefix : VerifyPrefixes) { 2107 // Every prefix must start with a letter and contain only alphanumeric 2108 // characters, hyphens, and underscores. 2109 auto BadChar = llvm::find_if(Prefix, [](char C) { 2110 return !isAlphanumeric(C) && C != '-' && C != '_'; 2111 }); 2112 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2113 Success = false; 2114 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2115 Diags.Report(diag::note_drv_verify_prefix_spelling); 2116 } 2117 } 2118 return Success; 2119 } 2120 2121 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2122 SmallVectorImpl<const char *> &Args, 2123 CompilerInvocation::StringAllocator SA) { 2124 const FileSystemOptions &FileSystemOpts = Opts; 2125 2126 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2127 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2128 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2129 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2130 MERGER, EXTRACTOR, TABLE_INDEX) \ 2131 GENERATE_OPTION_WITH_MARSHALLING( \ 2132 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2133 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2134 #include "clang/Driver/Options.inc" 2135 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2136 } 2137 2138 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2139 DiagnosticsEngine &Diags) { 2140 unsigned NumErrorsBefore = Diags.getNumErrors(); 2141 2142 FileSystemOptions &FileSystemOpts = Opts; 2143 2144 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2145 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2146 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2147 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2148 MERGER, EXTRACTOR, TABLE_INDEX) \ 2149 PARSE_OPTION_WITH_MARSHALLING( \ 2150 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2151 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2152 #include "clang/Driver/Options.inc" 2153 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2154 2155 return Diags.getNumErrors() == NumErrorsBefore; 2156 } 2157 2158 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2159 SmallVectorImpl<const char *> &Args, 2160 CompilerInvocation::StringAllocator SA) { 2161 const MigratorOptions &MigratorOpts = Opts; 2162 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2163 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2164 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2165 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2166 MERGER, EXTRACTOR, TABLE_INDEX) \ 2167 GENERATE_OPTION_WITH_MARSHALLING( \ 2168 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2169 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2170 #include "clang/Driver/Options.inc" 2171 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2172 } 2173 2174 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2175 DiagnosticsEngine &Diags) { 2176 unsigned NumErrorsBefore = Diags.getNumErrors(); 2177 2178 MigratorOptions &MigratorOpts = Opts; 2179 2180 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2181 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2182 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2183 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2184 MERGER, EXTRACTOR, TABLE_INDEX) \ 2185 PARSE_OPTION_WITH_MARSHALLING( \ 2186 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2187 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2188 #include "clang/Driver/Options.inc" 2189 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2190 2191 return Diags.getNumErrors() == NumErrorsBefore; 2192 } 2193 2194 void CompilerInvocation::GenerateDiagnosticArgs( 2195 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2196 StringAllocator SA, bool DefaultDiagColor) { 2197 const DiagnosticOptions *DiagnosticOpts = &Opts; 2198 #define DIAG_OPTION_WITH_MARSHALLING( \ 2199 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2200 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2201 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2202 MERGER, EXTRACTOR, TABLE_INDEX) \ 2203 GENERATE_OPTION_WITH_MARSHALLING( \ 2204 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2205 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2206 #include "clang/Driver/Options.inc" 2207 #undef DIAG_OPTION_WITH_MARSHALLING 2208 2209 if (!Opts.DiagnosticSerializationFile.empty()) 2210 GenerateArg(Args, OPT_diagnostic_serialized_file, 2211 Opts.DiagnosticSerializationFile, SA); 2212 2213 if (Opts.ShowColors) 2214 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2215 2216 if (Opts.VerifyDiagnostics && 2217 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2218 GenerateArg(Args, OPT_verify, SA); 2219 2220 for (const auto &Prefix : Opts.VerifyPrefixes) 2221 if (Prefix != "expected") 2222 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2223 2224 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2225 if (VIU == DiagnosticLevelMask::None) { 2226 // This is the default, don't generate anything. 2227 } else if (VIU == DiagnosticLevelMask::All) { 2228 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2229 } else { 2230 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2231 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2232 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2233 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2234 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2235 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2236 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2237 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2238 } 2239 2240 for (const auto &Warning : Opts.Warnings) { 2241 // This option is automatically generated from UndefPrefixes. 2242 if (Warning == "undef-prefix") 2243 continue; 2244 Args.push_back(SA(StringRef("-W") + Warning)); 2245 } 2246 2247 for (const auto &Remark : Opts.Remarks) { 2248 // These arguments are generated from OptimizationRemark fields of 2249 // CodeGenOptions. 2250 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2251 "pass-analysis", "no-pass-analysis", 2252 "pass-missed", "no-pass-missed"}; 2253 if (llvm::is_contained(IgnoredRemarks, Remark)) 2254 continue; 2255 2256 Args.push_back(SA(StringRef("-R") + Remark)); 2257 } 2258 } 2259 2260 std::unique_ptr<DiagnosticOptions> 2261 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2262 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2263 unsigned MissingArgIndex, MissingArgCount; 2264 InputArgList Args = getDriverOptTable().ParseArgs( 2265 Argv.slice(1), MissingArgIndex, MissingArgCount); 2266 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2267 // Any errors that would be diagnosed here will also be diagnosed later, 2268 // when the DiagnosticsEngine actually exists. 2269 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2270 return DiagOpts; 2271 } 2272 2273 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2274 DiagnosticsEngine *Diags, 2275 bool DefaultDiagColor) { 2276 Optional<DiagnosticsEngine> IgnoringDiags; 2277 if (!Diags) { 2278 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2279 new IgnoringDiagConsumer()); 2280 Diags = &*IgnoringDiags; 2281 } 2282 2283 unsigned NumErrorsBefore = Diags->getNumErrors(); 2284 2285 // The key paths of diagnostic options defined in Options.td start with 2286 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2287 DiagnosticOptions *DiagnosticOpts = &Opts; 2288 2289 #define DIAG_OPTION_WITH_MARSHALLING( \ 2290 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2291 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2292 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2293 MERGER, EXTRACTOR, TABLE_INDEX) \ 2294 PARSE_OPTION_WITH_MARSHALLING( \ 2295 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2296 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2297 #include "clang/Driver/Options.inc" 2298 #undef DIAG_OPTION_WITH_MARSHALLING 2299 2300 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2301 2302 if (Arg *A = 2303 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2304 Opts.DiagnosticSerializationFile = A->getValue(); 2305 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2306 2307 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2308 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2309 if (Args.hasArg(OPT_verify)) 2310 Opts.VerifyPrefixes.push_back("expected"); 2311 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2312 // then sort it to prepare for fast lookup using std::binary_search. 2313 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2314 Opts.VerifyDiagnostics = false; 2315 else 2316 llvm::sort(Opts.VerifyPrefixes); 2317 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2318 parseDiagnosticLevelMask( 2319 "-verify-ignore-unexpected=", 2320 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2321 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2322 DiagMask = DiagnosticLevelMask::All; 2323 Opts.setVerifyIgnoreUnexpected(DiagMask); 2324 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2325 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2326 Diags->Report(diag::warn_ignoring_ftabstop_value) 2327 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2328 } 2329 2330 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2331 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2332 2333 return Diags->getNumErrors() == NumErrorsBefore; 2334 } 2335 2336 /// Parse the argument to the -ftest-module-file-extension 2337 /// command-line argument. 2338 /// 2339 /// \returns true on error, false on success. 2340 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2341 std::string &BlockName, 2342 unsigned &MajorVersion, 2343 unsigned &MinorVersion, 2344 bool &Hashed, 2345 std::string &UserInfo) { 2346 SmallVector<StringRef, 5> Args; 2347 Arg.split(Args, ':', 5); 2348 if (Args.size() < 5) 2349 return true; 2350 2351 BlockName = std::string(Args[0]); 2352 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2353 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2354 if (Args[3].getAsInteger(2, Hashed)) return true; 2355 if (Args.size() > 4) 2356 UserInfo = std::string(Args[4]); 2357 return false; 2358 } 2359 2360 /// Return a table that associates command line option specifiers with the 2361 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2362 /// intentionally missing, as this case is handled separately from other 2363 /// frontend options. 2364 static const auto &getFrontendActionTable() { 2365 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2366 {frontend::ASTDeclList, OPT_ast_list}, 2367 2368 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2369 {frontend::ASTDump, OPT_ast_dump_all}, 2370 {frontend::ASTDump, OPT_ast_dump_EQ}, 2371 {frontend::ASTDump, OPT_ast_dump}, 2372 {frontend::ASTDump, OPT_ast_dump_lookups}, 2373 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2374 2375 {frontend::ASTPrint, OPT_ast_print}, 2376 {frontend::ASTView, OPT_ast_view}, 2377 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2378 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2379 {frontend::DumpTokens, OPT_dump_tokens}, 2380 {frontend::EmitAssembly, OPT_S}, 2381 {frontend::EmitBC, OPT_emit_llvm_bc}, 2382 {frontend::EmitHTML, OPT_emit_html}, 2383 {frontend::EmitLLVM, OPT_emit_llvm}, 2384 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2385 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2386 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2387 {frontend::EmitObj, OPT_emit_obj}, 2388 2389 {frontend::FixIt, OPT_fixit_EQ}, 2390 {frontend::FixIt, OPT_fixit}, 2391 2392 {frontend::GenerateModule, OPT_emit_module}, 2393 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2394 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2395 {frontend::GeneratePCH, OPT_emit_pch}, 2396 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2397 {frontend::InitOnly, OPT_init_only}, 2398 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2399 {frontend::ModuleFileInfo, OPT_module_file_info}, 2400 {frontend::VerifyPCH, OPT_verify_pch}, 2401 {frontend::PrintPreamble, OPT_print_preamble}, 2402 {frontend::PrintPreprocessedInput, OPT_E}, 2403 {frontend::TemplightDump, OPT_templight_dump}, 2404 {frontend::RewriteMacros, OPT_rewrite_macros}, 2405 {frontend::RewriteObjC, OPT_rewrite_objc}, 2406 {frontend::RewriteTest, OPT_rewrite_test}, 2407 {frontend::RunAnalysis, OPT_analyze}, 2408 {frontend::MigrateSource, OPT_migrate}, 2409 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2410 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2411 OPT_print_dependency_directives_minimized_source}, 2412 }; 2413 2414 return Table; 2415 } 2416 2417 /// Maps command line option to frontend action. 2418 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2419 for (const auto &ActionOpt : getFrontendActionTable()) 2420 if (ActionOpt.second == Opt.getID()) 2421 return ActionOpt.first; 2422 2423 return None; 2424 } 2425 2426 /// Maps frontend action to command line option. 2427 static Optional<OptSpecifier> 2428 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2429 for (const auto &ActionOpt : getFrontendActionTable()) 2430 if (ActionOpt.first == ProgramAction) 2431 return OptSpecifier(ActionOpt.second); 2432 2433 return None; 2434 } 2435 2436 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2437 SmallVectorImpl<const char *> &Args, 2438 CompilerInvocation::StringAllocator SA, 2439 bool IsHeader) { 2440 const FrontendOptions &FrontendOpts = Opts; 2441 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2442 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2443 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2444 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2445 MERGER, EXTRACTOR, TABLE_INDEX) \ 2446 GENERATE_OPTION_WITH_MARSHALLING( \ 2447 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2448 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2449 #include "clang/Driver/Options.inc" 2450 #undef FRONTEND_OPTION_WITH_MARSHALLING 2451 2452 Optional<OptSpecifier> ProgramActionOpt = 2453 getProgramActionOpt(Opts.ProgramAction); 2454 2455 // Generating a simple flag covers most frontend actions. 2456 std::function<void()> GenerateProgramAction = [&]() { 2457 GenerateArg(Args, *ProgramActionOpt, SA); 2458 }; 2459 2460 if (!ProgramActionOpt) { 2461 // PluginAction is the only program action handled separately. 2462 assert(Opts.ProgramAction == frontend::PluginAction && 2463 "Frontend action without option."); 2464 GenerateProgramAction = [&]() { 2465 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2466 }; 2467 } 2468 2469 // FIXME: Simplify the complex 'AST dump' command line. 2470 if (Opts.ProgramAction == frontend::ASTDump) { 2471 GenerateProgramAction = [&]() { 2472 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2473 // marshalling infrastructure. 2474 2475 if (Opts.ASTDumpFormat != ADOF_Default) { 2476 StringRef Format; 2477 switch (Opts.ASTDumpFormat) { 2478 case ADOF_Default: 2479 llvm_unreachable("Default AST dump format."); 2480 case ADOF_JSON: 2481 Format = "json"; 2482 break; 2483 } 2484 2485 if (Opts.ASTDumpAll) 2486 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2487 if (Opts.ASTDumpDecls) 2488 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2489 } else { 2490 if (Opts.ASTDumpAll) 2491 GenerateArg(Args, OPT_ast_dump_all, SA); 2492 if (Opts.ASTDumpDecls) 2493 GenerateArg(Args, OPT_ast_dump, SA); 2494 } 2495 }; 2496 } 2497 2498 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2499 GenerateProgramAction = [&]() { 2500 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2501 }; 2502 } 2503 2504 GenerateProgramAction(); 2505 2506 for (const auto &PluginArgs : Opts.PluginArgs) { 2507 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2508 const char *Spelling = 2509 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2510 for (const auto &PluginArg : PluginArgs.second) 2511 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2512 } 2513 2514 for (const auto &Ext : Opts.ModuleFileExtensions) 2515 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2516 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2517 2518 if (!Opts.CodeCompletionAt.FileName.empty()) 2519 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2520 SA); 2521 2522 for (const auto &Plugin : Opts.Plugins) 2523 GenerateArg(Args, OPT_load, Plugin, SA); 2524 2525 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2526 2527 for (const auto &ModuleFile : Opts.ModuleFiles) 2528 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2529 2530 if (Opts.AuxTargetCPU.hasValue()) 2531 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2532 2533 if (Opts.AuxTargetFeatures.hasValue()) 2534 for (const auto &Feature : *Opts.AuxTargetFeatures) 2535 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2536 2537 { 2538 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2539 StringRef ModuleMap = 2540 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2541 StringRef Header = IsHeader ? "-header" : ""; 2542 2543 StringRef Lang; 2544 switch (Opts.DashX.getLanguage()) { 2545 case Language::C: 2546 Lang = "c"; 2547 break; 2548 case Language::OpenCL: 2549 Lang = "cl"; 2550 break; 2551 case Language::OpenCLCXX: 2552 Lang = "clcpp"; 2553 break; 2554 case Language::CUDA: 2555 Lang = "cuda"; 2556 break; 2557 case Language::HIP: 2558 Lang = "hip"; 2559 break; 2560 case Language::CXX: 2561 Lang = "c++"; 2562 break; 2563 case Language::ObjC: 2564 Lang = "objective-c"; 2565 break; 2566 case Language::ObjCXX: 2567 Lang = "objective-c++"; 2568 break; 2569 case Language::RenderScript: 2570 Lang = "renderscript"; 2571 break; 2572 case Language::Asm: 2573 Lang = "assembler-with-cpp"; 2574 break; 2575 case Language::Unknown: 2576 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2577 "Generating -x argument for unknown language (not precompiled)."); 2578 Lang = "ast"; 2579 break; 2580 case Language::LLVM_IR: 2581 Lang = "ir"; 2582 break; 2583 } 2584 2585 GenerateArg(Args, OPT_x, Lang + Header + ModuleMap + Preprocessed, SA); 2586 } 2587 2588 // OPT_INPUT has a unique class, generate it directly. 2589 for (const auto &Input : Opts.Inputs) 2590 Args.push_back(SA(Input.getFile())); 2591 } 2592 2593 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2594 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2595 unsigned NumErrorsBefore = Diags.getNumErrors(); 2596 2597 FrontendOptions &FrontendOpts = Opts; 2598 2599 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2600 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2601 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2602 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2603 MERGER, EXTRACTOR, TABLE_INDEX) \ 2604 PARSE_OPTION_WITH_MARSHALLING( \ 2605 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2606 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2607 #include "clang/Driver/Options.inc" 2608 #undef FRONTEND_OPTION_WITH_MARSHALLING 2609 2610 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2611 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2612 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2613 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2614 assert(ProgramAction && "Option specifier not in Action_Group."); 2615 2616 if (ProgramAction == frontend::ASTDump && 2617 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2618 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2619 .CaseLower("default", ADOF_Default) 2620 .CaseLower("json", ADOF_JSON) 2621 .Default(std::numeric_limits<unsigned>::max()); 2622 2623 if (Val != std::numeric_limits<unsigned>::max()) 2624 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2625 else { 2626 Diags.Report(diag::err_drv_invalid_value) 2627 << A->getAsString(Args) << A->getValue(); 2628 Opts.ASTDumpFormat = ADOF_Default; 2629 } 2630 } 2631 2632 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2633 Opts.FixItSuffix = A->getValue(); 2634 2635 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2636 StringRef ArgStr = 2637 Args.hasArg(OPT_interface_stub_version_EQ) 2638 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2639 : "ifs-v1"; 2640 if (ArgStr == "experimental-yaml-elf-v1" || 2641 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2642 ArgStr == "experimental-tapi-elf-v1") { 2643 std::string ErrorMessage = 2644 "Invalid interface stub format: " + ArgStr.str() + 2645 " is deprecated."; 2646 Diags.Report(diag::err_drv_invalid_value) 2647 << "Must specify a valid interface stub format type, ie: " 2648 "-interface-stub-version=ifs-v1" 2649 << ErrorMessage; 2650 ProgramAction = frontend::ParseSyntaxOnly; 2651 } else if (!ArgStr.startswith("ifs-")) { 2652 std::string ErrorMessage = 2653 "Invalid interface stub format: " + ArgStr.str() + "."; 2654 Diags.Report(diag::err_drv_invalid_value) 2655 << "Must specify a valid interface stub format type, ie: " 2656 "-interface-stub-version=ifs-v1" 2657 << ErrorMessage; 2658 ProgramAction = frontend::ParseSyntaxOnly; 2659 } 2660 } 2661 2662 Opts.ProgramAction = *ProgramAction; 2663 } 2664 2665 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2666 Opts.Plugins.emplace_back(A->getValue(0)); 2667 Opts.ProgramAction = frontend::PluginAction; 2668 Opts.ActionName = A->getValue(); 2669 } 2670 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2671 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2672 2673 for (const std::string &Arg : 2674 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2675 std::string BlockName; 2676 unsigned MajorVersion; 2677 unsigned MinorVersion; 2678 bool Hashed; 2679 std::string UserInfo; 2680 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2681 MinorVersion, Hashed, UserInfo)) { 2682 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2683 2684 continue; 2685 } 2686 2687 // Add the testing module file extension. 2688 Opts.ModuleFileExtensions.push_back( 2689 std::make_shared<TestModuleFileExtension>( 2690 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2691 } 2692 2693 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2694 Opts.CodeCompletionAt = 2695 ParsedSourceLocation::FromString(A->getValue()); 2696 if (Opts.CodeCompletionAt.FileName.empty()) 2697 Diags.Report(diag::err_drv_invalid_value) 2698 << A->getAsString(Args) << A->getValue(); 2699 } 2700 2701 Opts.Plugins = Args.getAllArgValues(OPT_load); 2702 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2703 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2704 // Only the -fmodule-file=<file> form. 2705 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2706 StringRef Val = A->getValue(); 2707 if (Val.find('=') == StringRef::npos) 2708 Opts.ModuleFiles.push_back(std::string(Val)); 2709 } 2710 2711 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2712 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2713 << "-emit-module"; 2714 2715 if (Args.hasArg(OPT_aux_target_cpu)) 2716 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2717 if (Args.hasArg(OPT_aux_target_feature)) 2718 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2719 2720 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2721 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2722 Diags.Report(diag::err_drv_argument_not_allowed_with) 2723 << "ARC migration" << "ObjC migration"; 2724 } 2725 2726 InputKind DashX(Language::Unknown); 2727 if (const Arg *A = Args.getLastArg(OPT_x)) { 2728 StringRef XValue = A->getValue(); 2729 2730 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2731 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2732 bool Preprocessed = XValue.consume_back("-cpp-output"); 2733 bool ModuleMap = XValue.consume_back("-module-map"); 2734 IsHeaderFile = !Preprocessed && !ModuleMap && 2735 XValue != "precompiled-header" && 2736 XValue.consume_back("-header"); 2737 2738 // Principal languages. 2739 DashX = llvm::StringSwitch<InputKind>(XValue) 2740 .Case("c", Language::C) 2741 .Case("cl", Language::OpenCL) 2742 .Case("clcpp", Language::OpenCLCXX) 2743 .Case("cuda", Language::CUDA) 2744 .Case("hip", Language::HIP) 2745 .Case("c++", Language::CXX) 2746 .Case("objective-c", Language::ObjC) 2747 .Case("objective-c++", Language::ObjCXX) 2748 .Case("renderscript", Language::RenderScript) 2749 .Default(Language::Unknown); 2750 2751 // "objc[++]-cpp-output" is an acceptable synonym for 2752 // "objective-c[++]-cpp-output". 2753 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2754 DashX = llvm::StringSwitch<InputKind>(XValue) 2755 .Case("objc", Language::ObjC) 2756 .Case("objc++", Language::ObjCXX) 2757 .Default(Language::Unknown); 2758 2759 // Some special cases cannot be combined with suffixes. 2760 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2761 DashX = llvm::StringSwitch<InputKind>(XValue) 2762 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2763 .Case("assembler-with-cpp", Language::Asm) 2764 .Cases("ast", "pcm", "precompiled-header", 2765 InputKind(Language::Unknown, InputKind::Precompiled)) 2766 .Case("ir", Language::LLVM_IR) 2767 .Default(Language::Unknown); 2768 2769 if (DashX.isUnknown()) 2770 Diags.Report(diag::err_drv_invalid_value) 2771 << A->getAsString(Args) << A->getValue(); 2772 2773 if (Preprocessed) 2774 DashX = DashX.getPreprocessed(); 2775 if (ModuleMap) 2776 DashX = DashX.withFormat(InputKind::ModuleMap); 2777 } 2778 2779 // '-' is the default input if none is given. 2780 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2781 Opts.Inputs.clear(); 2782 if (Inputs.empty()) 2783 Inputs.push_back("-"); 2784 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2785 InputKind IK = DashX; 2786 if (IK.isUnknown()) { 2787 IK = FrontendOptions::getInputKindForExtension( 2788 StringRef(Inputs[i]).rsplit('.').second); 2789 // FIXME: Warn on this? 2790 if (IK.isUnknown()) 2791 IK = Language::C; 2792 // FIXME: Remove this hack. 2793 if (i == 0) 2794 DashX = IK; 2795 } 2796 2797 bool IsSystem = false; 2798 2799 // The -emit-module action implicitly takes a module map. 2800 if (Opts.ProgramAction == frontend::GenerateModule && 2801 IK.getFormat() == InputKind::Source) { 2802 IK = IK.withFormat(InputKind::ModuleMap); 2803 IsSystem = Opts.IsSystemModule; 2804 } 2805 2806 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2807 } 2808 2809 Opts.DashX = DashX; 2810 2811 return Diags.getNumErrors() == NumErrorsBefore; 2812 } 2813 2814 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2815 void *MainAddr) { 2816 std::string ClangExecutable = 2817 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2818 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2819 } 2820 2821 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2822 SmallVectorImpl<const char *> &Args, 2823 CompilerInvocation::StringAllocator SA) { 2824 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2825 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2826 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2827 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2828 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2829 MERGER, EXTRACTOR, TABLE_INDEX) \ 2830 GENERATE_OPTION_WITH_MARSHALLING( \ 2831 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2832 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2833 #include "clang/Driver/Options.inc" 2834 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2835 2836 if (Opts.UseLibcxx) 2837 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2838 2839 if (!Opts.ModuleCachePath.empty()) 2840 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2841 2842 for (const auto &File : Opts.PrebuiltModuleFiles) 2843 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2844 2845 for (const auto &Path : Opts.PrebuiltModulePaths) 2846 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2847 2848 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2849 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2850 2851 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2852 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2853 llvm::Optional<bool> IsFramework, 2854 llvm::Optional<bool> IgnoreSysRoot) { 2855 return llvm::find(Groups, Entry.Group) != Groups.end() && 2856 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2857 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2858 }; 2859 2860 auto It = Opts.UserEntries.begin(); 2861 auto End = Opts.UserEntries.end(); 2862 2863 // Add -I..., -F..., and -index-header-map options in order. 2864 for (; It < End && 2865 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2866 ++It) { 2867 OptSpecifier Opt = [It, Matches]() { 2868 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2869 return OPT_F; 2870 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2871 return OPT_I; 2872 if (Matches(*It, frontend::Angled, true, true)) 2873 return OPT_F; 2874 if (Matches(*It, frontend::Angled, false, true)) 2875 return OPT_I; 2876 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2877 }(); 2878 2879 if (It->Group == frontend::IndexHeaderMap) 2880 GenerateArg(Args, OPT_index_header_map, SA); 2881 GenerateArg(Args, Opt, It->Path, SA); 2882 }; 2883 2884 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2885 // have already been generated as "-I[xx]yy". If that's the case, their 2886 // position on command line was such that this has no semantic impact on 2887 // include paths. 2888 for (; It < End && 2889 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2890 ++It) { 2891 OptSpecifier Opt = 2892 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2893 GenerateArg(Args, Opt, It->Path, SA); 2894 } 2895 2896 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2897 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2898 // command line was such that this has no semantic impact on include paths. 2899 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2900 GenerateArg(Args, OPT_idirafter, It->Path, SA); 2901 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 2902 GenerateArg(Args, OPT_iquote, It->Path, SA); 2903 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 2904 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 2905 It->Path, SA); 2906 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 2907 GenerateArg(Args, OPT_iframework, It->Path, SA); 2908 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 2909 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 2910 2911 // Add the paths for the various language specific isystem flags. 2912 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 2913 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 2914 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 2915 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 2916 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 2917 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 2918 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 2919 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 2920 2921 // Add the internal paths from a driver that detects standard include paths. 2922 // Note: Some paths that came from "-internal-isystem" arguments may have 2923 // already been generated as "-isystem". If that's the case, their position on 2924 // command line was such that this has no semantic impact on include paths. 2925 for (; It < End && 2926 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 2927 ++It) { 2928 OptSpecifier Opt = It->Group == frontend::System 2929 ? OPT_internal_isystem 2930 : OPT_internal_externc_isystem; 2931 GenerateArg(Args, Opt, It->Path, SA); 2932 } 2933 2934 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 2935 2936 // Add the path prefixes which are implicitly treated as being system headers. 2937 for (const auto &P : Opts.SystemHeaderPrefixes) { 2938 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 2939 : OPT_no_system_header_prefix; 2940 GenerateArg(Args, Opt, P.Prefix, SA); 2941 } 2942 2943 for (const std::string &F : Opts.VFSOverlayFiles) 2944 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 2945 } 2946 2947 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2948 DiagnosticsEngine &Diags, 2949 const std::string &WorkingDir) { 2950 unsigned NumErrorsBefore = Diags.getNumErrors(); 2951 2952 HeaderSearchOptions *HeaderSearchOpts = &Opts; 2953 2954 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2955 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2956 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2957 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2958 MERGER, EXTRACTOR, TABLE_INDEX) \ 2959 PARSE_OPTION_WITH_MARSHALLING( \ 2960 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2961 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2962 #include "clang/Driver/Options.inc" 2963 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2964 2965 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2966 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2967 2968 // Canonicalize -fmodules-cache-path before storing it. 2969 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2970 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2971 if (WorkingDir.empty()) 2972 llvm::sys::fs::make_absolute(P); 2973 else 2974 llvm::sys::fs::make_absolute(WorkingDir, P); 2975 } 2976 llvm::sys::path::remove_dots(P); 2977 Opts.ModuleCachePath = std::string(P.str()); 2978 2979 // Only the -fmodule-file=<name>=<file> form. 2980 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2981 StringRef Val = A->getValue(); 2982 if (Val.find('=') != StringRef::npos){ 2983 auto Split = Val.split('='); 2984 Opts.PrebuiltModuleFiles.insert( 2985 {std::string(Split.first), std::string(Split.second)}); 2986 } 2987 } 2988 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2989 Opts.AddPrebuiltModulePath(A->getValue()); 2990 2991 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2992 StringRef MacroDef = A->getValue(); 2993 Opts.ModulesIgnoreMacros.insert( 2994 llvm::CachedHashString(MacroDef.split('=').first)); 2995 } 2996 2997 // Add -I..., -F..., and -index-header-map options in order. 2998 bool IsIndexHeaderMap = false; 2999 bool IsSysrootSpecified = 3000 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3001 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3002 if (A->getOption().matches(OPT_index_header_map)) { 3003 // -index-header-map applies to the next -I or -F. 3004 IsIndexHeaderMap = true; 3005 continue; 3006 } 3007 3008 frontend::IncludeDirGroup Group = 3009 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3010 3011 bool IsFramework = A->getOption().matches(OPT_F); 3012 std::string Path = A->getValue(); 3013 3014 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3015 SmallString<32> Buffer; 3016 llvm::sys::path::append(Buffer, Opts.Sysroot, 3017 llvm::StringRef(A->getValue()).substr(1)); 3018 Path = std::string(Buffer.str()); 3019 } 3020 3021 Opts.AddPath(Path, Group, IsFramework, 3022 /*IgnoreSysroot*/ true); 3023 IsIndexHeaderMap = false; 3024 } 3025 3026 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3027 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3028 for (const auto *A : 3029 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3030 if (A->getOption().matches(OPT_iprefix)) 3031 Prefix = A->getValue(); 3032 else if (A->getOption().matches(OPT_iwithprefix)) 3033 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3034 else 3035 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3036 } 3037 3038 for (const auto *A : Args.filtered(OPT_idirafter)) 3039 Opts.AddPath(A->getValue(), frontend::After, false, true); 3040 for (const auto *A : Args.filtered(OPT_iquote)) 3041 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3042 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3043 Opts.AddPath(A->getValue(), frontend::System, false, 3044 !A->getOption().matches(OPT_iwithsysroot)); 3045 for (const auto *A : Args.filtered(OPT_iframework)) 3046 Opts.AddPath(A->getValue(), frontend::System, true, true); 3047 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3048 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3049 /*IgnoreSysRoot=*/false); 3050 3051 // Add the paths for the various language specific isystem flags. 3052 for (const auto *A : Args.filtered(OPT_c_isystem)) 3053 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3054 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3055 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3056 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3057 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3058 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3059 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3060 3061 // Add the internal paths from a driver that detects standard include paths. 3062 for (const auto *A : 3063 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3064 frontend::IncludeDirGroup Group = frontend::System; 3065 if (A->getOption().matches(OPT_internal_externc_isystem)) 3066 Group = frontend::ExternCSystem; 3067 Opts.AddPath(A->getValue(), Group, false, true); 3068 } 3069 3070 // Add the path prefixes which are implicitly treated as being system headers. 3071 for (const auto *A : 3072 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3073 Opts.AddSystemHeaderPrefix( 3074 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3075 3076 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3077 Opts.AddVFSOverlayFile(A->getValue()); 3078 3079 return Diags.getNumErrors() == NumErrorsBefore; 3080 } 3081 3082 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 3083 const llvm::Triple &T, 3084 std::vector<std::string> &Includes, 3085 LangStandard::Kind LangStd) { 3086 // Set some properties which depend solely on the input kind; it would be nice 3087 // to move these to the language standard, and have the driver resolve the 3088 // input kind + language standard. 3089 // 3090 // FIXME: Perhaps a better model would be for a single source file to have 3091 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 3092 // simultaneously active? 3093 if (IK.getLanguage() == Language::Asm) { 3094 Opts.AsmPreprocessor = 1; 3095 } else if (IK.isObjectiveC()) { 3096 Opts.ObjC = 1; 3097 } 3098 3099 if (LangStd == LangStandard::lang_unspecified) { 3100 // Based on the base language, pick one. 3101 switch (IK.getLanguage()) { 3102 case Language::Unknown: 3103 case Language::LLVM_IR: 3104 llvm_unreachable("Invalid input kind!"); 3105 case Language::OpenCL: 3106 LangStd = LangStandard::lang_opencl12; 3107 break; 3108 case Language::OpenCLCXX: 3109 LangStd = LangStandard::lang_openclcpp10; 3110 break; 3111 case Language::CUDA: 3112 LangStd = LangStandard::lang_cuda; 3113 break; 3114 case Language::Asm: 3115 case Language::C: 3116 #if defined(CLANG_DEFAULT_STD_C) 3117 LangStd = CLANG_DEFAULT_STD_C; 3118 #else 3119 // The PS4 uses C99 as the default C standard. 3120 if (T.isPS4()) 3121 LangStd = LangStandard::lang_gnu99; 3122 else 3123 LangStd = LangStandard::lang_gnu17; 3124 #endif 3125 break; 3126 case Language::ObjC: 3127 #if defined(CLANG_DEFAULT_STD_C) 3128 LangStd = CLANG_DEFAULT_STD_C; 3129 #else 3130 LangStd = LangStandard::lang_gnu11; 3131 #endif 3132 break; 3133 case Language::CXX: 3134 case Language::ObjCXX: 3135 #if defined(CLANG_DEFAULT_STD_CXX) 3136 LangStd = CLANG_DEFAULT_STD_CXX; 3137 #else 3138 LangStd = LangStandard::lang_gnucxx14; 3139 #endif 3140 break; 3141 case Language::RenderScript: 3142 LangStd = LangStandard::lang_c99; 3143 break; 3144 case Language::HIP: 3145 LangStd = LangStandard::lang_hip; 3146 break; 3147 } 3148 } 3149 3150 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3151 Opts.LangStd = LangStd; 3152 Opts.LineComment = Std.hasLineComments(); 3153 Opts.C99 = Std.isC99(); 3154 Opts.C11 = Std.isC11(); 3155 Opts.C17 = Std.isC17(); 3156 Opts.C2x = Std.isC2x(); 3157 Opts.CPlusPlus = Std.isCPlusPlus(); 3158 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 3159 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 3160 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 3161 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 3162 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 3163 Opts.GNUMode = Std.isGNUMode(); 3164 Opts.GNUCVersion = 0; 3165 Opts.HexFloats = Std.hasHexFloats(); 3166 Opts.ImplicitInt = Std.hasImplicitInt(); 3167 3168 // Set OpenCL Version. 3169 Opts.OpenCL = Std.isOpenCL(); 3170 if (LangStd == LangStandard::lang_opencl10) 3171 Opts.OpenCLVersion = 100; 3172 else if (LangStd == LangStandard::lang_opencl11) 3173 Opts.OpenCLVersion = 110; 3174 else if (LangStd == LangStandard::lang_opencl12) 3175 Opts.OpenCLVersion = 120; 3176 else if (LangStd == LangStandard::lang_opencl20) 3177 Opts.OpenCLVersion = 200; 3178 else if (LangStd == LangStandard::lang_opencl30) 3179 Opts.OpenCLVersion = 300; 3180 else if (LangStd == LangStandard::lang_openclcpp10) 3181 Opts.OpenCLCPlusPlusVersion = 100; 3182 else if (LangStd == LangStandard::lang_openclcpp2021) 3183 Opts.OpenCLCPlusPlusVersion = 202100; 3184 3185 // OpenCL has some additional defaults. 3186 if (Opts.OpenCL) { 3187 Opts.AltiVec = 0; 3188 Opts.ZVector = 0; 3189 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3190 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 3191 Opts.OpenCLPipes = Opts.getOpenCLCompatibleVersion() == 200; 3192 Opts.OpenCLGenericAddressSpace = Opts.getOpenCLCompatibleVersion() == 200; 3193 3194 // Include default header file for OpenCL. 3195 if (Opts.IncludeDefaultHeader) { 3196 if (Opts.DeclareOpenCLBuiltins) { 3197 // Only include base header file for builtin types and constants. 3198 Includes.push_back("opencl-c-base.h"); 3199 } else { 3200 Includes.push_back("opencl-c.h"); 3201 } 3202 } 3203 } 3204 3205 Opts.HIP = IK.getLanguage() == Language::HIP; 3206 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 3207 if (Opts.HIP) { 3208 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 3209 // fuses multiplication/addition instructions without contract flag from 3210 // device library functions in LLVM bitcode, which causes accuracy loss in 3211 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 3212 // For device library functions in bitcode to work, 'Strict' or 'Standard' 3213 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 3214 // FP contract option is used to allow fuse across statements in frontend 3215 // whereas respecting contract flag in backend. 3216 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3217 } else if (Opts.CUDA) { 3218 // Allow fuse across statements disregarding pragmas. 3219 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3220 } 3221 3222 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 3223 3224 // OpenCL and C++ both have bool, true, false keywords. 3225 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 3226 3227 // OpenCL has half keyword 3228 Opts.Half = Opts.OpenCL; 3229 } 3230 3231 /// Check if input file kind and language standard are compatible. 3232 static bool IsInputCompatibleWithStandard(InputKind IK, 3233 const LangStandard &S) { 3234 switch (IK.getLanguage()) { 3235 case Language::Unknown: 3236 case Language::LLVM_IR: 3237 llvm_unreachable("should not parse language flags for this input"); 3238 3239 case Language::C: 3240 case Language::ObjC: 3241 case Language::RenderScript: 3242 return S.getLanguage() == Language::C; 3243 3244 case Language::OpenCL: 3245 return S.getLanguage() == Language::OpenCL || 3246 S.getLanguage() == Language::OpenCLCXX; 3247 3248 case Language::OpenCLCXX: 3249 return S.getLanguage() == Language::OpenCLCXX; 3250 3251 case Language::CXX: 3252 case Language::ObjCXX: 3253 return S.getLanguage() == Language::CXX; 3254 3255 case Language::CUDA: 3256 // FIXME: What -std= values should be permitted for CUDA compilations? 3257 return S.getLanguage() == Language::CUDA || 3258 S.getLanguage() == Language::CXX; 3259 3260 case Language::HIP: 3261 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3262 3263 case Language::Asm: 3264 // Accept (and ignore) all -std= values. 3265 // FIXME: The -std= value is not ignored; it affects the tokenization 3266 // and preprocessing rules if we're preprocessing this asm input. 3267 return true; 3268 } 3269 3270 llvm_unreachable("unexpected input language"); 3271 } 3272 3273 /// Get language name for given input kind. 3274 static const StringRef GetInputKindName(InputKind IK) { 3275 switch (IK.getLanguage()) { 3276 case Language::C: 3277 return "C"; 3278 case Language::ObjC: 3279 return "Objective-C"; 3280 case Language::CXX: 3281 return "C++"; 3282 case Language::ObjCXX: 3283 return "Objective-C++"; 3284 case Language::OpenCL: 3285 return "OpenCL"; 3286 case Language::OpenCLCXX: 3287 return "C++ for OpenCL"; 3288 case Language::CUDA: 3289 return "CUDA"; 3290 case Language::RenderScript: 3291 return "RenderScript"; 3292 case Language::HIP: 3293 return "HIP"; 3294 3295 case Language::Asm: 3296 return "Asm"; 3297 case Language::LLVM_IR: 3298 return "LLVM IR"; 3299 3300 case Language::Unknown: 3301 break; 3302 } 3303 llvm_unreachable("unknown input language"); 3304 } 3305 3306 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3307 SmallVectorImpl<const char *> &Args, 3308 StringAllocator SA, 3309 const llvm::Triple &T, InputKind IK) { 3310 if (IK.getFormat() == InputKind::Precompiled || 3311 IK.getLanguage() == Language::LLVM_IR) { 3312 if (Opts.ObjCAutoRefCount) 3313 GenerateArg(Args, OPT_fobjc_arc, SA); 3314 if (Opts.PICLevel != 0) 3315 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3316 if (Opts.PIE) 3317 GenerateArg(Args, OPT_pic_is_pie, SA); 3318 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3319 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3320 3321 return; 3322 } 3323 3324 OptSpecifier StdOpt; 3325 switch (Opts.LangStd) { 3326 case LangStandard::lang_opencl10: 3327 case LangStandard::lang_opencl11: 3328 case LangStandard::lang_opencl12: 3329 case LangStandard::lang_opencl20: 3330 case LangStandard::lang_opencl30: 3331 case LangStandard::lang_openclcpp10: 3332 case LangStandard::lang_openclcpp2021: 3333 StdOpt = OPT_cl_std_EQ; 3334 break; 3335 default: 3336 StdOpt = OPT_std_EQ; 3337 break; 3338 } 3339 3340 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3341 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3342 3343 if (Opts.IncludeDefaultHeader) 3344 GenerateArg(Args, OPT_finclude_default_header, SA); 3345 if (Opts.DeclareOpenCLBuiltins) 3346 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3347 3348 const LangOptions *LangOpts = &Opts; 3349 3350 #define LANG_OPTION_WITH_MARSHALLING( \ 3351 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3352 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3353 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3354 MERGER, EXTRACTOR, TABLE_INDEX) \ 3355 GENERATE_OPTION_WITH_MARSHALLING( \ 3356 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3357 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3358 #include "clang/Driver/Options.inc" 3359 #undef LANG_OPTION_WITH_MARSHALLING 3360 3361 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3362 3363 if (Opts.ObjC) { 3364 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3365 3366 if (Opts.GC == LangOptions::GCOnly) 3367 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3368 else if (Opts.GC == LangOptions::HybridGC) 3369 GenerateArg(Args, OPT_fobjc_gc, SA); 3370 else if (Opts.ObjCAutoRefCount == 1) 3371 GenerateArg(Args, OPT_fobjc_arc, SA); 3372 3373 if (Opts.ObjCWeakRuntime) 3374 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3375 3376 if (Opts.ObjCWeak) 3377 GenerateArg(Args, OPT_fobjc_weak, SA); 3378 3379 if (Opts.ObjCSubscriptingLegacyRuntime) 3380 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3381 } 3382 3383 if (Opts.GNUCVersion != 0) { 3384 unsigned Major = Opts.GNUCVersion / 100 / 100; 3385 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3386 unsigned Patch = Opts.GNUCVersion % 100; 3387 GenerateArg(Args, OPT_fgnuc_version_EQ, 3388 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3389 } 3390 3391 if (Opts.IgnoreXCOFFVisibility) 3392 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3393 3394 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3395 GenerateArg(Args, OPT_ftrapv, SA); 3396 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3397 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3398 GenerateArg(Args, OPT_fwrapv, SA); 3399 } 3400 3401 if (Opts.MSCompatibilityVersion != 0) { 3402 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3403 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3404 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3405 GenerateArg(Args, OPT_fms_compatibility_version, 3406 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3407 } 3408 3409 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3410 if (!Opts.Trigraphs) 3411 GenerateArg(Args, OPT_fno_trigraphs, SA); 3412 } else { 3413 if (Opts.Trigraphs) 3414 GenerateArg(Args, OPT_ftrigraphs, SA); 3415 } 3416 3417 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3418 GenerateArg(Args, OPT_fblocks, SA); 3419 3420 if (Opts.ConvergentFunctions && 3421 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3422 GenerateArg(Args, OPT_fconvergent_functions, SA); 3423 3424 if (Opts.NoBuiltin && !Opts.Freestanding) 3425 GenerateArg(Args, OPT_fno_builtin, SA); 3426 3427 if (!Opts.NoBuiltin) 3428 for (const auto &Func : Opts.NoBuiltinFuncs) 3429 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3430 3431 if (Opts.LongDoubleSize == 128) 3432 GenerateArg(Args, OPT_mlong_double_128, SA); 3433 else if (Opts.LongDoubleSize == 64) 3434 GenerateArg(Args, OPT_mlong_double_64, SA); 3435 3436 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3437 3438 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3439 // '-fopenmp-targets='. 3440 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3441 GenerateArg(Args, OPT_fopenmp, SA); 3442 3443 if (Opts.OpenMP != 50) 3444 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3445 3446 if (!Opts.OpenMPUseTLS) 3447 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3448 3449 if (Opts.OpenMPIsDevice) 3450 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3451 3452 if (Opts.OpenMPIRBuilder) 3453 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3454 } 3455 3456 if (Opts.OpenMPSimd) { 3457 GenerateArg(Args, OPT_fopenmp_simd, SA); 3458 3459 if (Opts.OpenMP != 50) 3460 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3461 } 3462 3463 if (Opts.OpenMPCUDANumSMs != 0) 3464 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3465 Twine(Opts.OpenMPCUDANumSMs), SA); 3466 3467 if (Opts.OpenMPCUDABlocksPerSM != 0) 3468 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3469 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3470 3471 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3472 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3473 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3474 3475 if (!Opts.OMPTargetTriples.empty()) { 3476 std::string Targets; 3477 llvm::raw_string_ostream OS(Targets); 3478 llvm::interleave( 3479 Opts.OMPTargetTriples, OS, 3480 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3481 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3482 } 3483 3484 if (!Opts.OMPHostIRFile.empty()) 3485 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3486 3487 if (Opts.OpenMPCUDAMode) 3488 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3489 3490 if (Opts.OpenMPCUDAForceFullRuntime) 3491 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3492 3493 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3494 // generated from CodeGenOptions. 3495 3496 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3497 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3498 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3499 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3500 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3501 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3502 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3503 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3504 3505 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3506 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3507 3508 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3509 for (const std::string &F : Opts.NoSanitizeFiles) 3510 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3511 3512 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3513 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3514 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3515 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3516 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3517 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3518 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3519 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3520 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3521 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3522 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3523 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3524 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3525 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3526 3527 if (Opts.getSignReturnAddressScope() == 3528 LangOptions::SignReturnAddressScopeKind::All) 3529 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3530 else if (Opts.getSignReturnAddressScope() == 3531 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3532 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3533 3534 if (Opts.getSignReturnAddressKey() == 3535 LangOptions::SignReturnAddressKeyKind::BKey) 3536 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3537 3538 if (Opts.CXXABI) 3539 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3540 SA); 3541 3542 if (Opts.RelativeCXXABIVTables) 3543 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3544 else 3545 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3546 3547 for (const auto &MP : Opts.MacroPrefixMap) 3548 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3549 } 3550 3551 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3552 InputKind IK, const llvm::Triple &T, 3553 std::vector<std::string> &Includes, 3554 DiagnosticsEngine &Diags) { 3555 unsigned NumErrorsBefore = Diags.getNumErrors(); 3556 3557 if (IK.getFormat() == InputKind::Precompiled || 3558 IK.getLanguage() == Language::LLVM_IR) { 3559 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3560 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3561 // what the input type is. 3562 if (Args.hasArg(OPT_fobjc_arc)) 3563 Opts.ObjCAutoRefCount = 1; 3564 // PICLevel and PIELevel are needed during code generation and this should 3565 // be set regardless of the input type. 3566 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3567 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3568 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3569 Diags, Opts.Sanitize); 3570 3571 return Diags.getNumErrors() == NumErrorsBefore; 3572 } 3573 3574 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3575 // FIXME: Should we really be parsing this for an Language::Asm input? 3576 3577 // FIXME: Cleanup per-file based stuff. 3578 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3579 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3580 LangStd = LangStandard::getLangKind(A->getValue()); 3581 if (LangStd == LangStandard::lang_unspecified) { 3582 Diags.Report(diag::err_drv_invalid_value) 3583 << A->getAsString(Args) << A->getValue(); 3584 // Report supported standards with short description. 3585 for (unsigned KindValue = 0; 3586 KindValue != LangStandard::lang_unspecified; 3587 ++KindValue) { 3588 const LangStandard &Std = LangStandard::getLangStandardForKind( 3589 static_cast<LangStandard::Kind>(KindValue)); 3590 if (IsInputCompatibleWithStandard(IK, Std)) { 3591 auto Diag = Diags.Report(diag::note_drv_use_standard); 3592 Diag << Std.getName() << Std.getDescription(); 3593 unsigned NumAliases = 0; 3594 #define LANGSTANDARD(id, name, lang, desc, features) 3595 #define LANGSTANDARD_ALIAS(id, alias) \ 3596 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3597 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3598 #include "clang/Basic/LangStandards.def" 3599 Diag << NumAliases; 3600 #define LANGSTANDARD(id, name, lang, desc, features) 3601 #define LANGSTANDARD_ALIAS(id, alias) \ 3602 if (KindValue == LangStandard::lang_##id) Diag << alias; 3603 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3604 #include "clang/Basic/LangStandards.def" 3605 } 3606 } 3607 } else { 3608 // Valid standard, check to make sure language and standard are 3609 // compatible. 3610 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3611 if (!IsInputCompatibleWithStandard(IK, Std)) { 3612 Diags.Report(diag::err_drv_argument_not_allowed_with) 3613 << A->getAsString(Args) << GetInputKindName(IK); 3614 } 3615 } 3616 } 3617 3618 // -cl-std only applies for OpenCL language standards. 3619 // Override the -std option in this case. 3620 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3621 LangStandard::Kind OpenCLLangStd 3622 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3623 .Cases("cl", "CL", LangStandard::lang_opencl10) 3624 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3625 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3626 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3627 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3628 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3629 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3630 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3631 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3632 .Default(LangStandard::lang_unspecified); 3633 3634 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3635 Diags.Report(diag::err_drv_invalid_value) 3636 << A->getAsString(Args) << A->getValue(); 3637 } 3638 else 3639 LangStd = OpenCLLangStd; 3640 } 3641 3642 // These need to be parsed now. They are used to set OpenCL defaults. 3643 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3644 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3645 3646 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd); 3647 3648 // The key paths of codegen options defined in Options.td start with 3649 // "LangOpts->". Let's provide the expected variable name and type. 3650 LangOptions *LangOpts = &Opts; 3651 3652 #define LANG_OPTION_WITH_MARSHALLING( \ 3653 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3654 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3655 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3656 MERGER, EXTRACTOR, TABLE_INDEX) \ 3657 PARSE_OPTION_WITH_MARSHALLING( \ 3658 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3659 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3660 #include "clang/Driver/Options.inc" 3661 #undef LANG_OPTION_WITH_MARSHALLING 3662 3663 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3664 StringRef Name = A->getValue(); 3665 if (Name == "full" || Name == "branch") { 3666 Opts.CFProtectionBranch = 1; 3667 } 3668 } 3669 3670 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3671 !Args.hasArg(OPT_sycl_std_EQ)) { 3672 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3673 // provide -sycl-std=, we want to default it to whatever the default SYCL 3674 // version is. I could not find a way to express this with the options 3675 // tablegen because we still want this value to be SYCL_None when the user 3676 // is not in device or host mode. 3677 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3678 } 3679 3680 if (Opts.ObjC) { 3681 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3682 StringRef value = arg->getValue(); 3683 if (Opts.ObjCRuntime.tryParse(value)) 3684 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3685 } 3686 3687 if (Args.hasArg(OPT_fobjc_gc_only)) 3688 Opts.setGC(LangOptions::GCOnly); 3689 else if (Args.hasArg(OPT_fobjc_gc)) 3690 Opts.setGC(LangOptions::HybridGC); 3691 else if (Args.hasArg(OPT_fobjc_arc)) { 3692 Opts.ObjCAutoRefCount = 1; 3693 if (!Opts.ObjCRuntime.allowsARC()) 3694 Diags.Report(diag::err_arc_unsupported_on_runtime); 3695 } 3696 3697 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3698 // whether the feature is actually enabled. This is predominantly 3699 // determined by -fobjc-runtime, but we allow it to be overridden 3700 // from the command line for testing purposes. 3701 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3702 Opts.ObjCWeakRuntime = 1; 3703 else 3704 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3705 3706 // ObjCWeak determines whether __weak is actually enabled. 3707 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3708 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3709 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3710 assert(!Opts.ObjCWeak); 3711 } else if (Opts.getGC() != LangOptions::NonGC) { 3712 Diags.Report(diag::err_objc_weak_with_gc); 3713 } else if (!Opts.ObjCWeakRuntime) { 3714 Diags.Report(diag::err_objc_weak_unsupported); 3715 } else { 3716 Opts.ObjCWeak = 1; 3717 } 3718 } else if (Opts.ObjCAutoRefCount) { 3719 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3720 } 3721 3722 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3723 Opts.ObjCSubscriptingLegacyRuntime = 3724 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3725 } 3726 3727 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3728 // Check that the version has 1 to 3 components and the minor and patch 3729 // versions fit in two decimal digits. 3730 VersionTuple GNUCVer; 3731 bool Invalid = GNUCVer.tryParse(A->getValue()); 3732 unsigned Major = GNUCVer.getMajor(); 3733 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3734 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3735 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3736 Diags.Report(diag::err_drv_invalid_value) 3737 << A->getAsString(Args) << A->getValue(); 3738 } 3739 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3740 } 3741 3742 // In AIX OS, the -mignore-xcoff-visibility is enable by default if there is 3743 // no -fvisibility=* option. 3744 // This is the reason why '-fvisibility' needs to be always generated: 3745 // its absence implies '-mignore-xcoff-visibility'. 3746 // 3747 // Suppose the original cc1 command line does contain '-fvisibility default': 3748 // '-mignore-xcoff-visibility' should not be implied. 3749 // * If '-fvisibility' is not generated (as most options with default values 3750 // don't), its absence would imply '-mignore-xcoff-visibility'. This changes 3751 // the command line semantics. 3752 // * If '-fvisibility' is generated regardless of its presence and value, 3753 // '-mignore-xcoff-visibility' won't be implied and the command line 3754 // semantics are kept intact. 3755 // 3756 // When the original cc1 command line does **not** contain '-fvisibility', 3757 // '-mignore-xcoff-visibility' is implied. The generated command line will 3758 // contain both '-fvisibility default' and '-mignore-xcoff-visibility' and 3759 // subsequent calls to `CreateFromArgs`/`generateCC1CommandLine` will always 3760 // produce the same arguments. 3761 3762 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 3763 !Args.hasArg(OPT_fvisibility))) 3764 Opts.IgnoreXCOFFVisibility = 1; 3765 3766 if (Args.hasArg(OPT_ftrapv)) { 3767 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3768 // Set the handler, if one is specified. 3769 Opts.OverflowHandler = 3770 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3771 } 3772 else if (Args.hasArg(OPT_fwrapv)) 3773 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3774 3775 Opts.MSCompatibilityVersion = 0; 3776 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3777 VersionTuple VT; 3778 if (VT.tryParse(A->getValue())) 3779 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3780 << A->getValue(); 3781 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3782 VT.getMinor().getValueOr(0) * 100000 + 3783 VT.getSubminor().getValueOr(0); 3784 } 3785 3786 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3787 // is specified, or -std is set to a conforming mode. 3788 // Trigraphs are disabled by default in c++1z onwards. 3789 // For z/OS, trigraphs are enabled by default (without regard to the above). 3790 Opts.Trigraphs = 3791 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3792 Opts.Trigraphs = 3793 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3794 3795 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3796 && Opts.OpenCLVersion == 200); 3797 3798 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3799 Opts.SYCLIsDevice || 3800 Args.hasArg(OPT_fconvergent_functions); 3801 3802 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3803 if (!Opts.NoBuiltin) 3804 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3805 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3806 ? 128 3807 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3808 if (Opts.FastRelaxedMath) 3809 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3810 llvm::sort(Opts.ModuleFeatures); 3811 3812 // -mrtd option 3813 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3814 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3815 Diags.Report(diag::err_drv_argument_not_allowed_with) 3816 << A->getSpelling() << "-fdefault-calling-conv"; 3817 else { 3818 if (T.getArch() != llvm::Triple::x86) 3819 Diags.Report(diag::err_drv_argument_not_allowed_with) 3820 << A->getSpelling() << T.getTriple(); 3821 else 3822 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3823 } 3824 } 3825 3826 // Check if -fopenmp is specified and set default version to 5.0. 3827 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3828 // Check if -fopenmp-simd is specified. 3829 bool IsSimdSpecified = 3830 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3831 /*Default=*/false); 3832 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3833 Opts.OpenMPUseTLS = 3834 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3835 Opts.OpenMPIsDevice = 3836 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3837 Opts.OpenMPIRBuilder = 3838 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3839 bool IsTargetSpecified = 3840 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3841 3842 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3843 3844 if (Opts.OpenMP || Opts.OpenMPSimd) { 3845 if (int Version = getLastArgIntValue( 3846 Args, OPT_fopenmp_version_EQ, 3847 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3848 Opts.OpenMP = Version; 3849 // Provide diagnostic when a given target is not expected to be an OpenMP 3850 // device or host. 3851 if (!Opts.OpenMPIsDevice) { 3852 switch (T.getArch()) { 3853 default: 3854 break; 3855 // Add unsupported host targets here: 3856 case llvm::Triple::nvptx: 3857 case llvm::Triple::nvptx64: 3858 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3859 break; 3860 } 3861 } 3862 } 3863 3864 // Set the flag to prevent the implementation from emitting device exception 3865 // handling code for those requiring so. 3866 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3867 Opts.OpenCLCPlusPlus) { 3868 Opts.Exceptions = 0; 3869 Opts.CXXExceptions = 0; 3870 } 3871 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3872 Opts.OpenMPCUDANumSMs = 3873 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3874 Opts.OpenMPCUDANumSMs, Diags); 3875 Opts.OpenMPCUDABlocksPerSM = 3876 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3877 Opts.OpenMPCUDABlocksPerSM, Diags); 3878 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3879 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3880 Opts.OpenMPCUDAReductionBufNum, Diags); 3881 } 3882 3883 // Get the OpenMP target triples if any. 3884 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3885 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3886 auto getArchPtrSize = [](const llvm::Triple &T) { 3887 if (T.isArch16Bit()) 3888 return Arch16Bit; 3889 if (T.isArch32Bit()) 3890 return Arch32Bit; 3891 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3892 return Arch64Bit; 3893 }; 3894 3895 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3896 llvm::Triple TT(A->getValue(i)); 3897 3898 if (TT.getArch() == llvm::Triple::UnknownArch || 3899 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3900 TT.getArch() == llvm::Triple::nvptx || 3901 TT.getArch() == llvm::Triple::nvptx64 || 3902 TT.getArch() == llvm::Triple::amdgcn || 3903 TT.getArch() == llvm::Triple::x86 || 3904 TT.getArch() == llvm::Triple::x86_64)) 3905 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3906 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3907 Diags.Report(diag::err_drv_incompatible_omp_arch) 3908 << A->getValue(i) << T.str(); 3909 else 3910 Opts.OMPTargetTriples.push_back(TT); 3911 } 3912 } 3913 3914 // Get OpenMP host file path if any and report if a non existent file is 3915 // found 3916 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3917 Opts.OMPHostIRFile = A->getValue(); 3918 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3919 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3920 << Opts.OMPHostIRFile; 3921 } 3922 3923 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3924 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3925 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3926 3927 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3928 Opts.OpenMPCUDAForceFullRuntime = 3929 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3930 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3931 3932 // FIXME: Eliminate this dependency. 3933 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3934 OptSize = getOptimizationLevelSize(Args); 3935 Opts.Optimize = Opt != 0; 3936 Opts.OptimizeSize = OptSize != 0; 3937 3938 // This is the __NO_INLINE__ define, which just depends on things like the 3939 // optimization level and -fno-inline, not actually whether the backend has 3940 // inlining enabled. 3941 Opts.NoInlineDefine = !Opts.Optimize; 3942 if (Arg *InlineArg = Args.getLastArg( 3943 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3944 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3945 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3946 Opts.NoInlineDefine = true; 3947 3948 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3949 StringRef Val = A->getValue(); 3950 if (Val == "fast") 3951 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3952 else if (Val == "on") 3953 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3954 else if (Val == "off") 3955 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3956 else if (Val == "fast-honor-pragmas") 3957 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3958 else 3959 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3960 } 3961 3962 // Parse -fsanitize= arguments. 3963 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3964 Diags, Opts.Sanitize); 3965 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 3966 std::vector<std::string> systemIgnorelists = 3967 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 3968 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3969 systemIgnorelists.begin(), 3970 systemIgnorelists.end()); 3971 3972 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3973 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3974 3975 StringRef Ver = A->getValue(); 3976 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3977 unsigned Major, Minor = 0; 3978 3979 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3980 // y or y.0 (4 <= y <= current version). 3981 if (!VerParts.first.startswith("0") && 3982 !VerParts.first.getAsInteger(10, Major) && 3983 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3984 (Major == 3 ? VerParts.second.size() == 1 && 3985 !VerParts.second.getAsInteger(10, Minor) 3986 : VerParts.first.size() == Ver.size() || 3987 VerParts.second == "0")) { 3988 // Got a valid version number. 3989 if (Major == 3 && Minor <= 8) 3990 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3991 else if (Major <= 4) 3992 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3993 else if (Major <= 6) 3994 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3995 else if (Major <= 7) 3996 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3997 else if (Major <= 9) 3998 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3999 else if (Major <= 11) 4000 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4001 else if (Major <= 12) 4002 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4003 } else if (Ver != "latest") { 4004 Diags.Report(diag::err_drv_invalid_value) 4005 << A->getAsString(Args) << A->getValue(); 4006 } 4007 } 4008 4009 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4010 StringRef SignScope = A->getValue(); 4011 4012 if (SignScope.equals_insensitive("none")) 4013 Opts.setSignReturnAddressScope( 4014 LangOptions::SignReturnAddressScopeKind::None); 4015 else if (SignScope.equals_insensitive("all")) 4016 Opts.setSignReturnAddressScope( 4017 LangOptions::SignReturnAddressScopeKind::All); 4018 else if (SignScope.equals_insensitive("non-leaf")) 4019 Opts.setSignReturnAddressScope( 4020 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4021 else 4022 Diags.Report(diag::err_drv_invalid_value) 4023 << A->getAsString(Args) << SignScope; 4024 4025 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4026 StringRef SignKey = A->getValue(); 4027 if (!SignScope.empty() && !SignKey.empty()) { 4028 if (SignKey.equals_insensitive("a_key")) 4029 Opts.setSignReturnAddressKey( 4030 LangOptions::SignReturnAddressKeyKind::AKey); 4031 else if (SignKey.equals_insensitive("b_key")) 4032 Opts.setSignReturnAddressKey( 4033 LangOptions::SignReturnAddressKeyKind::BKey); 4034 else 4035 Diags.Report(diag::err_drv_invalid_value) 4036 << A->getAsString(Args) << SignKey; 4037 } 4038 } 4039 } 4040 4041 // The value can be empty, which indicates the system default should be used. 4042 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4043 if (!CXXABI.empty()) { 4044 if (!TargetCXXABI::isABI(CXXABI)) { 4045 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4046 } else { 4047 auto Kind = TargetCXXABI::getKind(CXXABI); 4048 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4049 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4050 else 4051 Opts.CXXABI = Kind; 4052 } 4053 } 4054 4055 Opts.RelativeCXXABIVTables = 4056 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4057 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4058 TargetCXXABI::usesRelativeVTables(T)); 4059 4060 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4061 auto Split = StringRef(A).split('='); 4062 Opts.MacroPrefixMap.insert( 4063 {std::string(Split.first), std::string(Split.second)}); 4064 } 4065 4066 return Diags.getNumErrors() == NumErrorsBefore; 4067 } 4068 4069 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4070 switch (Action) { 4071 case frontend::ASTDeclList: 4072 case frontend::ASTDump: 4073 case frontend::ASTPrint: 4074 case frontend::ASTView: 4075 case frontend::EmitAssembly: 4076 case frontend::EmitBC: 4077 case frontend::EmitHTML: 4078 case frontend::EmitLLVM: 4079 case frontend::EmitLLVMOnly: 4080 case frontend::EmitCodeGenOnly: 4081 case frontend::EmitObj: 4082 case frontend::FixIt: 4083 case frontend::GenerateModule: 4084 case frontend::GenerateModuleInterface: 4085 case frontend::GenerateHeaderModule: 4086 case frontend::GeneratePCH: 4087 case frontend::GenerateInterfaceStubs: 4088 case frontend::ParseSyntaxOnly: 4089 case frontend::ModuleFileInfo: 4090 case frontend::VerifyPCH: 4091 case frontend::PluginAction: 4092 case frontend::RewriteObjC: 4093 case frontend::RewriteTest: 4094 case frontend::RunAnalysis: 4095 case frontend::TemplightDump: 4096 case frontend::MigrateSource: 4097 return false; 4098 4099 case frontend::DumpCompilerOptions: 4100 case frontend::DumpRawTokens: 4101 case frontend::DumpTokens: 4102 case frontend::InitOnly: 4103 case frontend::PrintPreamble: 4104 case frontend::PrintPreprocessedInput: 4105 case frontend::RewriteMacros: 4106 case frontend::RunPreprocessorOnly: 4107 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4108 return true; 4109 } 4110 llvm_unreachable("invalid frontend action"); 4111 } 4112 4113 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4114 SmallVectorImpl<const char *> &Args, 4115 CompilerInvocation::StringAllocator SA, 4116 const LangOptions &LangOpts, 4117 const FrontendOptions &FrontendOpts, 4118 const CodeGenOptions &CodeGenOpts) { 4119 PreprocessorOptions *PreprocessorOpts = &Opts; 4120 4121 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4122 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4123 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4124 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4125 MERGER, EXTRACTOR, TABLE_INDEX) \ 4126 GENERATE_OPTION_WITH_MARSHALLING( \ 4127 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4128 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4129 #include "clang/Driver/Options.inc" 4130 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4131 4132 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4133 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4134 4135 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4136 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4137 4138 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4139 GenerateArg(Args, OPT_preamble_bytes_EQ, 4140 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4141 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4142 SA); 4143 4144 for (const auto &M : Opts.Macros) { 4145 // Don't generate __CET__ macro definitions. They are implied by the 4146 // -fcf-protection option that is generated elsewhere. 4147 if (M.first == "__CET__=1" && !M.second && 4148 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4149 continue; 4150 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4151 !CodeGenOpts.CFProtectionBranch) 4152 continue; 4153 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4154 CodeGenOpts.CFProtectionBranch) 4155 continue; 4156 4157 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4158 } 4159 4160 for (const auto &I : Opts.Includes) { 4161 // Don't generate OpenCL includes. They are implied by other flags that are 4162 // generated elsewhere. 4163 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4164 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4165 I == "opencl-c.h")) 4166 continue; 4167 4168 GenerateArg(Args, OPT_include, I, SA); 4169 } 4170 4171 for (const auto &CI : Opts.ChainedIncludes) 4172 GenerateArg(Args, OPT_chain_include, CI, SA); 4173 4174 for (const auto &RF : Opts.RemappedFiles) 4175 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4176 4177 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4178 // generated elsewhere. 4179 } 4180 4181 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4182 DiagnosticsEngine &Diags, 4183 frontend::ActionKind Action, 4184 const FrontendOptions &FrontendOpts) { 4185 unsigned NumErrorsBefore = Diags.getNumErrors(); 4186 4187 PreprocessorOptions *PreprocessorOpts = &Opts; 4188 4189 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4190 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4191 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4192 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4193 MERGER, EXTRACTOR, TABLE_INDEX) \ 4194 PARSE_OPTION_WITH_MARSHALLING( \ 4195 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4196 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4197 #include "clang/Driver/Options.inc" 4198 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4199 4200 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4201 Args.hasArg(OPT_pch_through_hdrstop_use); 4202 4203 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4204 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4205 4206 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4207 StringRef Value(A->getValue()); 4208 size_t Comma = Value.find(','); 4209 unsigned Bytes = 0; 4210 unsigned EndOfLine = 0; 4211 4212 if (Comma == StringRef::npos || 4213 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4214 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4215 Diags.Report(diag::err_drv_preamble_format); 4216 else { 4217 Opts.PrecompiledPreambleBytes.first = Bytes; 4218 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4219 } 4220 } 4221 4222 // Add the __CET__ macro if a CFProtection option is set. 4223 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4224 StringRef Name = A->getValue(); 4225 if (Name == "branch") 4226 Opts.addMacroDef("__CET__=1"); 4227 else if (Name == "return") 4228 Opts.addMacroDef("__CET__=2"); 4229 else if (Name == "full") 4230 Opts.addMacroDef("__CET__=3"); 4231 } 4232 4233 // Add macros from the command line. 4234 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4235 if (A->getOption().matches(OPT_D)) 4236 Opts.addMacroDef(A->getValue()); 4237 else 4238 Opts.addMacroUndef(A->getValue()); 4239 } 4240 4241 // Add the ordered list of -includes. 4242 for (const auto *A : Args.filtered(OPT_include)) 4243 Opts.Includes.emplace_back(A->getValue()); 4244 4245 for (const auto *A : Args.filtered(OPT_chain_include)) 4246 Opts.ChainedIncludes.emplace_back(A->getValue()); 4247 4248 for (const auto *A : Args.filtered(OPT_remap_file)) { 4249 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4250 4251 if (Split.second.empty()) { 4252 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4253 continue; 4254 } 4255 4256 Opts.addRemappedFile(Split.first, Split.second); 4257 } 4258 4259 // Always avoid lexing editor placeholders when we're just running the 4260 // preprocessor as we never want to emit the 4261 // "editor placeholder in source file" error in PP only mode. 4262 if (isStrictlyPreprocessorAction(Action)) 4263 Opts.LexEditorPlaceholders = false; 4264 4265 return Diags.getNumErrors() == NumErrorsBefore; 4266 } 4267 4268 static void GeneratePreprocessorOutputArgs( 4269 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4270 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4271 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4272 4273 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4274 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4275 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4276 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4277 MERGER, EXTRACTOR, TABLE_INDEX) \ 4278 GENERATE_OPTION_WITH_MARSHALLING( \ 4279 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4280 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4281 #include "clang/Driver/Options.inc" 4282 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4283 4284 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4285 if (Generate_dM) 4286 GenerateArg(Args, OPT_dM, SA); 4287 if (!Generate_dM && Opts.ShowMacros) 4288 GenerateArg(Args, OPT_dD, SA); 4289 } 4290 4291 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4292 ArgList &Args, DiagnosticsEngine &Diags, 4293 frontend::ActionKind Action) { 4294 unsigned NumErrorsBefore = Diags.getNumErrors(); 4295 4296 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4297 4298 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4299 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4300 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4301 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4302 MERGER, EXTRACTOR, TABLE_INDEX) \ 4303 PARSE_OPTION_WITH_MARSHALLING( \ 4304 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4305 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4306 #include "clang/Driver/Options.inc" 4307 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4308 4309 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4310 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4311 4312 return Diags.getNumErrors() == NumErrorsBefore; 4313 } 4314 4315 static void GenerateTargetArgs(const TargetOptions &Opts, 4316 SmallVectorImpl<const char *> &Args, 4317 CompilerInvocation::StringAllocator SA) { 4318 const TargetOptions *TargetOpts = &Opts; 4319 #define TARGET_OPTION_WITH_MARSHALLING( \ 4320 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4321 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4322 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4323 MERGER, EXTRACTOR, TABLE_INDEX) \ 4324 GENERATE_OPTION_WITH_MARSHALLING( \ 4325 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4326 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4327 #include "clang/Driver/Options.inc" 4328 #undef TARGET_OPTION_WITH_MARSHALLING 4329 4330 if (!Opts.SDKVersion.empty()) 4331 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4332 SA); 4333 } 4334 4335 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4336 DiagnosticsEngine &Diags) { 4337 unsigned NumErrorsBefore = Diags.getNumErrors(); 4338 4339 TargetOptions *TargetOpts = &Opts; 4340 4341 #define TARGET_OPTION_WITH_MARSHALLING( \ 4342 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4343 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4344 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4345 MERGER, EXTRACTOR, TABLE_INDEX) \ 4346 PARSE_OPTION_WITH_MARSHALLING( \ 4347 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4348 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4349 #include "clang/Driver/Options.inc" 4350 #undef TARGET_OPTION_WITH_MARSHALLING 4351 4352 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4353 llvm::VersionTuple Version; 4354 if (Version.tryParse(A->getValue())) 4355 Diags.Report(diag::err_drv_invalid_value) 4356 << A->getAsString(Args) << A->getValue(); 4357 else 4358 Opts.SDKVersion = Version; 4359 } 4360 4361 return Diags.getNumErrors() == NumErrorsBefore; 4362 } 4363 4364 bool CompilerInvocation::CreateFromArgsImpl( 4365 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4366 DiagnosticsEngine &Diags, const char *Argv0) { 4367 unsigned NumErrorsBefore = Diags.getNumErrors(); 4368 4369 // Parse the arguments. 4370 const OptTable &Opts = getDriverOptTable(); 4371 const unsigned IncludedFlagsBitmask = options::CC1Option; 4372 unsigned MissingArgIndex, MissingArgCount; 4373 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4374 MissingArgCount, IncludedFlagsBitmask); 4375 LangOptions &LangOpts = *Res.getLangOpts(); 4376 4377 // Check for missing argument error. 4378 if (MissingArgCount) 4379 Diags.Report(diag::err_drv_missing_argument) 4380 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4381 4382 // Issue errors on unknown arguments. 4383 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4384 auto ArgString = A->getAsString(Args); 4385 std::string Nearest; 4386 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4387 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4388 else 4389 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4390 << ArgString << Nearest; 4391 } 4392 4393 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4394 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4395 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4396 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4397 /*DefaultDiagColor=*/false); 4398 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4399 // FIXME: We shouldn't have to pass the DashX option around here 4400 InputKind DashX = Res.getFrontendOpts().DashX; 4401 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4402 llvm::Triple T(Res.getTargetOpts().Triple); 4403 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4404 Res.getFileSystemOpts().WorkingDir); 4405 4406 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4407 Diags); 4408 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4409 LangOpts.ObjCExceptions = 1; 4410 4411 if (LangOpts.CUDA) { 4412 // During CUDA device-side compilation, the aux triple is the 4413 // triple used for host compilation. 4414 if (LangOpts.CUDAIsDevice) 4415 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4416 } 4417 4418 // Set the triple of the host for OpenMP device compile. 4419 if (LangOpts.OpenMPIsDevice) 4420 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4421 4422 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4423 Res.getFrontendOpts().OutputFile, LangOpts); 4424 4425 // FIXME: Override value name discarding when asan or msan is used because the 4426 // backend passes depend on the name of the alloca in order to print out 4427 // names. 4428 Res.getCodeGenOpts().DiscardValueNames &= 4429 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4430 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4431 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4432 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4433 4434 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4435 Res.getFrontendOpts().ProgramAction, 4436 Res.getFrontendOpts()); 4437 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4438 Res.getFrontendOpts().ProgramAction); 4439 4440 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4441 Res.getFrontendOpts().ProgramAction, 4442 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4443 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4444 Res.getDependencyOutputOpts().Targets.empty()) 4445 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4446 4447 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4448 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4449 !Res.getLangOpts()->Sanitize.empty()) { 4450 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4451 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4452 } 4453 4454 // Store the command-line for using in the CodeView backend. 4455 Res.getCodeGenOpts().Argv0 = Argv0; 4456 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 4457 4458 FixupInvocation(Res, Diags, Args, DashX); 4459 4460 return Diags.getNumErrors() == NumErrorsBefore; 4461 } 4462 4463 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4464 ArrayRef<const char *> CommandLineArgs, 4465 DiagnosticsEngine &Diags, 4466 const char *Argv0) { 4467 CompilerInvocation DummyInvocation; 4468 4469 return RoundTrip( 4470 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4471 DiagnosticsEngine &Diags, const char *Argv0) { 4472 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4473 }, 4474 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4475 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4476 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4477 } 4478 4479 std::string CompilerInvocation::getModuleHash() const { 4480 // FIXME: Consider using SHA1 instead of MD5. 4481 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4482 4483 // Note: For QoI reasons, the things we use as a hash here should all be 4484 // dumped via the -module-info flag. 4485 4486 // Start the signature with the compiler version. 4487 HBuilder.add(getClangFullRepositoryVersion()); 4488 4489 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4490 // and getClangFullRepositoryVersion() doesn't include git revision. 4491 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4492 4493 // Extend the signature with the language options 4494 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4495 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4496 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4497 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4498 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4499 #include "clang/Basic/LangOptions.def" 4500 4501 HBuilder.addRange(LangOpts->ModuleFeatures); 4502 4503 HBuilder.add(LangOpts->ObjCRuntime); 4504 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4505 4506 // Extend the signature with the target options. 4507 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4508 TargetOpts->ABI); 4509 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4510 4511 // Extend the signature with preprocessor options. 4512 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4513 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4514 4515 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4516 for (const auto &Macro : getPreprocessorOpts().Macros) { 4517 // If we're supposed to ignore this macro for the purposes of modules, 4518 // don't put it into the hash. 4519 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4520 // Check whether we're ignoring this macro. 4521 StringRef MacroDef = Macro.first; 4522 if (hsOpts.ModulesIgnoreMacros.count( 4523 llvm::CachedHashString(MacroDef.split('=').first))) 4524 continue; 4525 } 4526 4527 HBuilder.add(Macro); 4528 } 4529 4530 // Extend the signature with the sysroot and other header search options. 4531 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4532 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4533 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4534 hsOpts.ModulesValidateDiagnosticOptions); 4535 HBuilder.add(hsOpts.ResourceDir); 4536 4537 if (hsOpts.ModulesStrictContextHash) { 4538 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4539 HBuilder.addRange(hsOpts.UserEntries); 4540 4541 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4542 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4543 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4544 HBuilder.add(diagOpts.get##Name()); 4545 #include "clang/Basic/DiagnosticOptions.def" 4546 #undef DIAGOPT 4547 #undef ENUM_DIAGOPT 4548 } 4549 4550 // Extend the signature with the user build path. 4551 HBuilder.add(hsOpts.ModuleUserBuildPath); 4552 4553 // Extend the signature with the module file extensions. 4554 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4555 ext->hashExtension(HBuilder); 4556 4557 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4558 // affects the debug info in the PCM. 4559 if (getCodeGenOpts().DebugTypeExtRefs) 4560 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4561 4562 // Extend the signature with the enabled sanitizers, if at least one is 4563 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4564 SanitizerSet SanHash = LangOpts->Sanitize; 4565 SanHash.clear(getPPTransparentSanitizers()); 4566 if (!SanHash.empty()) 4567 HBuilder.add(SanHash.Mask); 4568 4569 llvm::MD5::MD5Result Result; 4570 HBuilder.getHasher().final(Result); 4571 uint64_t Hash = Result.high() ^ Result.low(); 4572 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4573 } 4574 4575 void CompilerInvocation::generateCC1CommandLine( 4576 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4577 llvm::Triple T(TargetOpts->Triple); 4578 4579 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4580 GenerateMigratorArgs(MigratorOpts, Args, SA); 4581 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4582 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4583 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4584 GenerateTargetArgs(*TargetOpts, Args, SA); 4585 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4586 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4587 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4588 &*LangOpts); 4589 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4590 CodeGenOpts); 4591 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4592 FrontendOpts.ProgramAction); 4593 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4594 } 4595 4596 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4597 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4598 DiagnosticsEngine &Diags) { 4599 return createVFSFromCompilerInvocation(CI, Diags, 4600 llvm::vfs::getRealFileSystem()); 4601 } 4602 4603 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4604 clang::createVFSFromCompilerInvocation( 4605 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4606 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4607 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4608 return BaseFS; 4609 4610 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4611 // earlier vfs files are on the bottom 4612 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4613 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4614 Result->getBufferForFile(File); 4615 if (!Buffer) { 4616 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4617 continue; 4618 } 4619 4620 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4621 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4622 /*DiagContext*/ nullptr, Result); 4623 if (!FS) { 4624 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4625 continue; 4626 } 4627 4628 Result = FS; 4629 } 4630 return Result; 4631 } 4632