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