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