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 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1652 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1653 << Opts.DIBugsReportFilePath; 1654 Opts.DIBugsReportFilePath = ""; 1655 } 1656 1657 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1658 Args.hasArg(OPT_new_struct_path_tbaa); 1659 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1660 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1661 if (Opts.SimplifyLibCalls) 1662 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1663 Opts.UnrollLoops = 1664 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1665 (Opts.OptimizationLevel > 1)); 1666 Opts.BinutilsVersion = 1667 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1668 1669 Opts.DebugNameTable = static_cast<unsigned>( 1670 Args.hasArg(OPT_ggnu_pubnames) 1671 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1672 : Args.hasArg(OPT_gpubnames) 1673 ? llvm::DICompileUnit::DebugNameTableKind::Default 1674 : llvm::DICompileUnit::DebugNameTableKind::None); 1675 1676 if (!Opts.ProfileInstrumentUsePath.empty()) 1677 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1678 1679 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1680 Opts.TimePasses = true; 1681 1682 // -ftime-report= is only for new pass manager. 1683 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1684 if (Opts.LegacyPassManager) 1685 Diags.Report(diag::err_drv_argument_only_allowed_with) 1686 << A->getAsString(Args) << "-fno-legacy-pass-manager"; 1687 1688 StringRef Val = A->getValue(); 1689 if (Val == "per-pass") 1690 Opts.TimePassesPerRun = false; 1691 else if (Val == "per-pass-run") 1692 Opts.TimePassesPerRun = true; 1693 else 1694 Diags.Report(diag::err_drv_invalid_value) 1695 << A->getAsString(Args) << A->getValue(); 1696 } 1697 } 1698 1699 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 1700 Opts.PrepareForThinLTO = false; 1701 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1702 StringRef S = A->getValue(); 1703 if (S == "thin") 1704 Opts.PrepareForThinLTO = true; 1705 else if (S != "full") 1706 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1707 } 1708 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1709 if (IK.getLanguage() != Language::LLVM_IR) 1710 Diags.Report(diag::err_drv_argument_only_allowed_with) 1711 << A->getAsString(Args) << "-x ir"; 1712 Opts.ThinLTOIndexFile = 1713 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1714 } 1715 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1716 Opts.SaveTempsFilePrefix = 1717 llvm::StringSwitch<std::string>(A->getValue()) 1718 .Case("obj", OutputFile) 1719 .Default(llvm::sys::path::filename(OutputFile).str()); 1720 1721 // The memory profile runtime appends the pid to make this name more unique. 1722 const char *MemProfileBasename = "memprof.profraw"; 1723 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1724 SmallString<128> Path( 1725 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1726 llvm::sys::path::append(Path, MemProfileBasename); 1727 Opts.MemoryProfileOutput = std::string(Path); 1728 } else if (Args.hasArg(OPT_fmemory_profile)) 1729 Opts.MemoryProfileOutput = MemProfileBasename; 1730 1731 memcpy(Opts.CoverageVersion, "408*", 4); 1732 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1733 if (Args.hasArg(OPT_coverage_version_EQ)) { 1734 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1735 if (CoverageVersion.size() != 4) { 1736 Diags.Report(diag::err_drv_invalid_value) 1737 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1738 << CoverageVersion; 1739 } else { 1740 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1741 } 1742 } 1743 } 1744 // FIXME: For backend options that are not yet recorded as function 1745 // attributes in the IR, keep track of them so we can embed them in a 1746 // separate data section and use them when building the bitcode. 1747 for (const auto &A : Args) { 1748 // Do not encode output and input. 1749 if (A->getOption().getID() == options::OPT_o || 1750 A->getOption().getID() == options::OPT_INPUT || 1751 A->getOption().getID() == options::OPT_x || 1752 A->getOption().getID() == options::OPT_fembed_bitcode || 1753 A->getOption().matches(options::OPT_W_Group)) 1754 continue; 1755 ArgStringList ASL; 1756 A->render(Args, ASL); 1757 for (const auto &arg : ASL) { 1758 StringRef ArgStr(arg); 1759 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1760 // using \00 to separate each commandline options. 1761 Opts.CmdArgs.push_back('\0'); 1762 } 1763 } 1764 1765 auto XRayInstrBundles = 1766 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1767 if (XRayInstrBundles.empty()) 1768 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1769 else 1770 for (const auto &A : XRayInstrBundles) 1771 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1772 Diags, Opts.XRayInstrumentationBundle); 1773 1774 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1775 StringRef Name = A->getValue(); 1776 if (Name == "full") { 1777 Opts.CFProtectionReturn = 1; 1778 Opts.CFProtectionBranch = 1; 1779 } else if (Name == "return") 1780 Opts.CFProtectionReturn = 1; 1781 else if (Name == "branch") 1782 Opts.CFProtectionBranch = 1; 1783 else if (Name != "none") { 1784 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1785 Success = false; 1786 } 1787 } 1788 1789 for (auto *A : 1790 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1791 CodeGenOptions::BitcodeFileToLink F; 1792 F.Filename = A->getValue(); 1793 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1794 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1795 // When linking CUDA bitcode, propagate function attributes so that 1796 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1797 F.PropagateAttrs = true; 1798 F.Internalize = true; 1799 } 1800 Opts.LinkBitcodeFiles.push_back(F); 1801 } 1802 1803 if (Args.getLastArg(OPT_femulated_tls) || 1804 Args.getLastArg(OPT_fno_emulated_tls)) { 1805 Opts.ExplicitEmulatedTLS = true; 1806 } 1807 1808 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1809 StringRef Val = A->getValue(); 1810 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1811 if (!Opts.FPDenormalMode.isValid()) 1812 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1813 } 1814 1815 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1816 StringRef Val = A->getValue(); 1817 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1818 if (!Opts.FP32DenormalMode.isValid()) 1819 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1820 } 1821 1822 // X86_32 has -fppc-struct-return and -freg-struct-return. 1823 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1824 if (Arg *A = 1825 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1826 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1827 // TODO: We might want to consider enabling these options on AIX in the 1828 // future. 1829 if (T.isOSAIX()) 1830 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1831 << A->getSpelling() << T.str(); 1832 1833 const Option &O = A->getOption(); 1834 if (O.matches(OPT_fpcc_struct_return) || 1835 O.matches(OPT_maix_struct_return)) { 1836 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1837 } else { 1838 assert(O.matches(OPT_freg_struct_return) || 1839 O.matches(OPT_msvr4_struct_return)); 1840 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1841 } 1842 } 1843 1844 if (Arg *A = 1845 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1846 if (!T.isOSAIX()) 1847 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1848 << A->getSpelling() << T.str(); 1849 1850 const Option &O = A->getOption(); 1851 if (O.matches(OPT_mabi_EQ_vec_default)) 1852 Diags.Report(diag::err_aix_default_altivec_abi) 1853 << A->getSpelling() << T.str(); 1854 else { 1855 assert(O.matches(OPT_mabi_EQ_vec_extabi)); 1856 Opts.EnableAIXExtendedAltivecABI = 1; 1857 } 1858 } 1859 1860 bool NeedLocTracking = false; 1861 1862 if (!Opts.OptRecordFile.empty()) 1863 NeedLocTracking = true; 1864 1865 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1866 Opts.OptRecordPasses = A->getValue(); 1867 NeedLocTracking = true; 1868 } 1869 1870 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1871 Opts.OptRecordFormat = A->getValue(); 1872 NeedLocTracking = true; 1873 } 1874 1875 Opts.OptimizationRemark = 1876 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1877 1878 Opts.OptimizationRemarkMissed = 1879 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1880 1881 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1882 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1883 1884 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1885 Opts.OptimizationRemarkMissed.hasValidPattern() || 1886 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1887 1888 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1889 bool UsingProfile = UsingSampleProfile || 1890 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1891 1892 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1893 // An IR file will contain PGO as metadata 1894 IK.getLanguage() != Language::LLVM_IR) 1895 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1896 << "-fdiagnostics-show-hotness"; 1897 1898 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1899 if (auto *arg = 1900 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1901 auto ResultOrErr = 1902 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1903 1904 if (!ResultOrErr) { 1905 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1906 << "-fdiagnostics-hotness-threshold="; 1907 } else { 1908 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1909 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1910 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1911 !UsingProfile) 1912 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1913 << "-fdiagnostics-hotness-threshold="; 1914 } 1915 } 1916 1917 // If the user requested to use a sample profile for PGO, then the 1918 // backend will need to track source location information so the profile 1919 // can be incorporated into the IR. 1920 if (UsingSampleProfile) 1921 NeedLocTracking = true; 1922 1923 // If the user requested a flag that requires source locations available in 1924 // the backend, make sure that the backend tracks source location information. 1925 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1926 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1927 1928 // Parse -fsanitize-recover= arguments. 1929 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1930 parseSanitizerKinds("-fsanitize-recover=", 1931 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1932 Opts.SanitizeRecover); 1933 parseSanitizerKinds("-fsanitize-trap=", 1934 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1935 Opts.SanitizeTrap); 1936 1937 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1938 1939 if (Args.hasArg(options::OPT_ffinite_loops)) 1940 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 1941 else if (Args.hasArg(options::OPT_fno_finite_loops)) 1942 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 1943 1944 return Success && Diags.getNumErrors() == NumErrorsBefore; 1945 } 1946 1947 static void 1948 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 1949 SmallVectorImpl<const char *> &Args, 1950 CompilerInvocation::StringAllocator SA) { 1951 const DependencyOutputOptions &DependencyOutputOpts = Opts; 1952 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1953 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1954 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1955 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1956 MERGER, EXTRACTOR, TABLE_INDEX) \ 1957 GENERATE_OPTION_WITH_MARSHALLING( \ 1958 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1959 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1960 #include "clang/Driver/Options.inc" 1961 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 1962 1963 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 1964 GenerateArg(Args, OPT_show_includes, SA); 1965 1966 for (const auto &Dep : Opts.ExtraDeps) { 1967 switch (Dep.second) { 1968 case EDK_SanitizeBlacklist: 1969 // Sanitizer blacklist arguments are generated from LanguageOptions. 1970 continue; 1971 case EDK_ModuleFile: 1972 // Module file arguments are generated from FrontendOptions and 1973 // HeaderSearchOptions. 1974 continue; 1975 case EDK_ProfileList: 1976 // Profile list arguments are generated from LanguageOptions via the 1977 // marshalling infrastructure. 1978 continue; 1979 case EDK_DepFileEntry: 1980 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 1981 break; 1982 } 1983 } 1984 } 1985 1986 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1987 ArgList &Args, DiagnosticsEngine &Diags, 1988 frontend::ActionKind Action, 1989 bool ShowLineMarkers) { 1990 unsigned NumErrorsBefore = Diags.getNumErrors(); 1991 bool Success = true; 1992 1993 DependencyOutputOptions &DependencyOutputOpts = Opts; 1994 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1995 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1996 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1997 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1998 MERGER, EXTRACTOR, TABLE_INDEX) \ 1999 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2000 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2001 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2002 MERGER, TABLE_INDEX) 2003 #include "clang/Driver/Options.inc" 2004 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2005 2006 if (Args.hasArg(OPT_show_includes)) { 2007 // Writing both /showIncludes and preprocessor output to stdout 2008 // would produce interleaved output, so use stderr for /showIncludes. 2009 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2010 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2011 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2012 else 2013 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2014 } else { 2015 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2016 } 2017 2018 // Add sanitizer blacklists as extra dependencies. 2019 // They won't be discovered by the regular preprocessor, so 2020 // we let make / ninja to know about this implicit dependency. 2021 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 2022 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 2023 StringRef Val = A->getValue(); 2024 if (Val.find('=') == StringRef::npos) 2025 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeBlacklist); 2026 } 2027 if (Opts.IncludeSystemHeaders) { 2028 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 2029 StringRef Val = A->getValue(); 2030 if (Val.find('=') == StringRef::npos) 2031 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeBlacklist); 2032 } 2033 } 2034 } 2035 2036 // -fprofile-list= dependencies. 2037 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2038 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2039 2040 // Propagate the extra dependencies. 2041 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2042 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2043 2044 // Only the -fmodule-file=<file> form. 2045 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2046 StringRef Val = A->getValue(); 2047 if (Val.find('=') == StringRef::npos) 2048 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2049 } 2050 2051 return Success && Diags.getNumErrors() == NumErrorsBefore; 2052 } 2053 2054 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2055 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2056 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2057 // Support both clang's -f[no-]color-diagnostics and gcc's 2058 // -f[no-]diagnostics-colors[=never|always|auto]. 2059 enum { 2060 Colors_On, 2061 Colors_Off, 2062 Colors_Auto 2063 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2064 for (auto *A : Args) { 2065 const Option &O = A->getOption(); 2066 if (O.matches(options::OPT_fcolor_diagnostics) || 2067 O.matches(options::OPT_fdiagnostics_color)) { 2068 ShowColors = Colors_On; 2069 } else if (O.matches(options::OPT_fno_color_diagnostics) || 2070 O.matches(options::OPT_fno_diagnostics_color)) { 2071 ShowColors = Colors_Off; 2072 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2073 StringRef Value(A->getValue()); 2074 if (Value == "always") 2075 ShowColors = Colors_On; 2076 else if (Value == "never") 2077 ShowColors = Colors_Off; 2078 else if (Value == "auto") 2079 ShowColors = Colors_Auto; 2080 } 2081 } 2082 return ShowColors == Colors_On || 2083 (ShowColors == Colors_Auto && 2084 llvm::sys::Process::StandardErrHasColors()); 2085 } 2086 2087 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2088 DiagnosticsEngine &Diags) { 2089 bool Success = true; 2090 for (const auto &Prefix : VerifyPrefixes) { 2091 // Every prefix must start with a letter and contain only alphanumeric 2092 // characters, hyphens, and underscores. 2093 auto BadChar = llvm::find_if(Prefix, [](char C) { 2094 return !isAlphanumeric(C) && C != '-' && C != '_'; 2095 }); 2096 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2097 Success = false; 2098 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2099 Diags.Report(diag::note_drv_verify_prefix_spelling); 2100 } 2101 } 2102 return Success; 2103 } 2104 2105 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2106 SmallVectorImpl<const char *> &Args, 2107 CompilerInvocation::StringAllocator SA) { 2108 const FileSystemOptions &FileSystemOpts = Opts; 2109 2110 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2111 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2112 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2113 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2114 MERGER, EXTRACTOR, TABLE_INDEX) \ 2115 GENERATE_OPTION_WITH_MARSHALLING( \ 2116 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2117 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2118 #include "clang/Driver/Options.inc" 2119 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2120 } 2121 2122 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2123 DiagnosticsEngine &Diags) { 2124 FileSystemOptions &FileSystemOpts = Opts; 2125 bool Success = true; 2126 2127 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2128 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2129 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2130 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2131 MERGER, EXTRACTOR, TABLE_INDEX) \ 2132 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2133 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2134 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2135 MERGER, TABLE_INDEX) 2136 #include "clang/Driver/Options.inc" 2137 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2138 2139 return Success; 2140 } 2141 2142 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2143 SmallVectorImpl<const char *> &Args, 2144 CompilerInvocation::StringAllocator SA) { 2145 const MigratorOptions &MigratorOpts = Opts; 2146 2147 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2148 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2149 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2150 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2151 MERGER, EXTRACTOR, TABLE_INDEX) \ 2152 GENERATE_OPTION_WITH_MARSHALLING( \ 2153 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2154 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2155 #include "clang/Driver/Options.inc" 2156 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2157 } 2158 2159 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2160 DiagnosticsEngine &Diags) { 2161 MigratorOptions &MigratorOpts = Opts; 2162 bool Success = true; 2163 2164 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2165 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2166 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2167 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2168 MERGER, EXTRACTOR, TABLE_INDEX) \ 2169 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2170 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2171 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2172 MERGER, TABLE_INDEX) 2173 #include "clang/Driver/Options.inc" 2174 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2175 2176 return Success; 2177 } 2178 2179 void CompilerInvocation::GenerateDiagnosticArgs( 2180 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2181 StringAllocator SA, bool DefaultDiagColor) { 2182 const DiagnosticOptions *DiagnosticOpts = &Opts; 2183 #define DIAG_OPTION_WITH_MARSHALLING( \ 2184 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2185 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2186 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2187 MERGER, EXTRACTOR, TABLE_INDEX) \ 2188 GENERATE_OPTION_WITH_MARSHALLING( \ 2189 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2190 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2191 #include "clang/Driver/Options.inc" 2192 #undef DIAG_OPTION_WITH_MARSHALLING 2193 2194 if (!Opts.DiagnosticSerializationFile.empty()) 2195 GenerateArg(Args, OPT_diagnostic_serialized_file, 2196 Opts.DiagnosticSerializationFile, SA); 2197 2198 if (Opts.ShowColors) 2199 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2200 2201 if (Opts.VerifyDiagnostics && 2202 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2203 GenerateArg(Args, OPT_verify, SA); 2204 2205 for (const auto &Prefix : Opts.VerifyPrefixes) 2206 if (Prefix != "expected") 2207 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2208 2209 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2210 if (VIU == DiagnosticLevelMask::None) { 2211 // This is the default, don't generate anything. 2212 } else if (VIU == DiagnosticLevelMask::All) { 2213 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2214 } else { 2215 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2216 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2217 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2218 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2219 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2220 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2221 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2222 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2223 } 2224 2225 for (const auto &Warning : Opts.Warnings) { 2226 // This option is automatically generated from UndefPrefixes. 2227 if (Warning == "undef-prefix") 2228 continue; 2229 Args.push_back(SA(StringRef("-W") + Warning)); 2230 } 2231 2232 for (const auto &Remark : Opts.Remarks) { 2233 // These arguments are generated from OptimizationRemark fields of 2234 // CodeGenOptions. 2235 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2236 "pass-analysis", "no-pass-analysis", 2237 "pass-missed", "no-pass-missed"}; 2238 if (llvm::is_contained(IgnoredRemarks, Remark)) 2239 continue; 2240 2241 Args.push_back(SA(StringRef("-R") + Remark)); 2242 } 2243 } 2244 2245 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2246 DiagnosticsEngine *Diags, 2247 bool DefaultDiagColor) { 2248 Optional<DiagnosticsEngine> IgnoringDiags; 2249 if (!Diags) { 2250 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2251 new IgnoringDiagConsumer()); 2252 Diags = &*IgnoringDiags; 2253 } 2254 2255 // The key paths of diagnostic options defined in Options.td start with 2256 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2257 DiagnosticOptions *DiagnosticOpts = &Opts; 2258 bool Success = true; 2259 2260 #define DIAG_OPTION_WITH_MARSHALLING( \ 2261 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2262 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2263 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2264 MERGER, EXTRACTOR, TABLE_INDEX) \ 2265 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, Success, ID, FLAGS, PARAM, \ 2266 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2267 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2268 MERGER, TABLE_INDEX) 2269 #include "clang/Driver/Options.inc" 2270 #undef DIAG_OPTION_WITH_MARSHALLING 2271 2272 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2273 2274 if (Arg *A = 2275 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2276 Opts.DiagnosticSerializationFile = A->getValue(); 2277 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2278 2279 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2280 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2281 if (Args.hasArg(OPT_verify)) 2282 Opts.VerifyPrefixes.push_back("expected"); 2283 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2284 // then sort it to prepare for fast lookup using std::binary_search. 2285 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) { 2286 Opts.VerifyDiagnostics = false; 2287 Success = false; 2288 } 2289 else 2290 llvm::sort(Opts.VerifyPrefixes); 2291 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2292 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 2293 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 2294 *Diags, DiagMask); 2295 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2296 DiagMask = DiagnosticLevelMask::All; 2297 Opts.setVerifyIgnoreUnexpected(DiagMask); 2298 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2299 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2300 Diags->Report(diag::warn_ignoring_ftabstop_value) 2301 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2302 } 2303 2304 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2305 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2306 2307 return Success; 2308 } 2309 2310 /// Parse the argument to the -ftest-module-file-extension 2311 /// command-line argument. 2312 /// 2313 /// \returns true on error, false on success. 2314 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2315 std::string &BlockName, 2316 unsigned &MajorVersion, 2317 unsigned &MinorVersion, 2318 bool &Hashed, 2319 std::string &UserInfo) { 2320 SmallVector<StringRef, 5> Args; 2321 Arg.split(Args, ':', 5); 2322 if (Args.size() < 5) 2323 return true; 2324 2325 BlockName = std::string(Args[0]); 2326 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2327 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2328 if (Args[3].getAsInteger(2, Hashed)) return true; 2329 if (Args.size() > 4) 2330 UserInfo = std::string(Args[4]); 2331 return false; 2332 } 2333 2334 /// Return a table that associates command line option specifiers with the 2335 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2336 /// intentionally missing, as this case is handled separately from other 2337 /// frontend options. 2338 static const auto &getFrontendActionTable() { 2339 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2340 {frontend::ASTDeclList, OPT_ast_list}, 2341 2342 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2343 {frontend::ASTDump, OPT_ast_dump_all}, 2344 {frontend::ASTDump, OPT_ast_dump_EQ}, 2345 {frontend::ASTDump, OPT_ast_dump}, 2346 {frontend::ASTDump, OPT_ast_dump_lookups}, 2347 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2348 2349 {frontend::ASTPrint, OPT_ast_print}, 2350 {frontend::ASTView, OPT_ast_view}, 2351 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2352 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2353 {frontend::DumpTokens, OPT_dump_tokens}, 2354 {frontend::EmitAssembly, OPT_S}, 2355 {frontend::EmitBC, OPT_emit_llvm_bc}, 2356 {frontend::EmitHTML, OPT_emit_html}, 2357 {frontend::EmitLLVM, OPT_emit_llvm}, 2358 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2359 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2360 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2361 {frontend::EmitObj, OPT_emit_obj}, 2362 2363 {frontend::FixIt, OPT_fixit_EQ}, 2364 {frontend::FixIt, OPT_fixit}, 2365 2366 {frontend::GenerateModule, OPT_emit_module}, 2367 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2368 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2369 {frontend::GeneratePCH, OPT_emit_pch}, 2370 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2371 {frontend::InitOnly, OPT_init_only}, 2372 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2373 {frontend::ModuleFileInfo, OPT_module_file_info}, 2374 {frontend::VerifyPCH, OPT_verify_pch}, 2375 {frontend::PrintPreamble, OPT_print_preamble}, 2376 {frontend::PrintPreprocessedInput, OPT_E}, 2377 {frontend::TemplightDump, OPT_templight_dump}, 2378 {frontend::RewriteMacros, OPT_rewrite_macros}, 2379 {frontend::RewriteObjC, OPT_rewrite_objc}, 2380 {frontend::RewriteTest, OPT_rewrite_test}, 2381 {frontend::RunAnalysis, OPT_analyze}, 2382 {frontend::MigrateSource, OPT_migrate}, 2383 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2384 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2385 OPT_print_dependency_directives_minimized_source}, 2386 }; 2387 2388 return Table; 2389 } 2390 2391 /// Maps command line option to frontend action. 2392 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2393 for (const auto &ActionOpt : getFrontendActionTable()) 2394 if (ActionOpt.second == Opt.getID()) 2395 return ActionOpt.first; 2396 2397 return None; 2398 } 2399 2400 /// Maps frontend action to command line option. 2401 static Optional<OptSpecifier> 2402 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2403 for (const auto &ActionOpt : getFrontendActionTable()) 2404 if (ActionOpt.first == ProgramAction) 2405 return OptSpecifier(ActionOpt.second); 2406 2407 return None; 2408 } 2409 2410 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2411 SmallVectorImpl<const char *> &Args, 2412 CompilerInvocation::StringAllocator SA, 2413 bool IsHeader) { 2414 const FrontendOptions &FrontendOpts = Opts; 2415 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2416 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2417 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2418 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2419 MERGER, EXTRACTOR, TABLE_INDEX) \ 2420 GENERATE_OPTION_WITH_MARSHALLING( \ 2421 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2422 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2423 #include "clang/Driver/Options.inc" 2424 #undef FRONTEND_OPTION_WITH_MARSHALLING 2425 2426 Optional<OptSpecifier> ProgramActionOpt = 2427 getProgramActionOpt(Opts.ProgramAction); 2428 2429 // Generating a simple flag covers most frontend actions. 2430 std::function<void()> GenerateProgramAction = [&]() { 2431 GenerateArg(Args, *ProgramActionOpt, SA); 2432 }; 2433 2434 if (!ProgramActionOpt) { 2435 // PluginAction is the only program action handled separately. 2436 assert(Opts.ProgramAction == frontend::PluginAction && 2437 "Frontend action without option."); 2438 GenerateProgramAction = [&]() { 2439 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2440 }; 2441 } 2442 2443 // FIXME: Simplify the complex 'AST dump' command line. 2444 if (Opts.ProgramAction == frontend::ASTDump) { 2445 GenerateProgramAction = [&]() { 2446 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2447 // marshalling infrastructure. 2448 2449 if (Opts.ASTDumpFormat != ADOF_Default) { 2450 StringRef Format; 2451 switch (Opts.ASTDumpFormat) { 2452 case ADOF_Default: 2453 llvm_unreachable("Default AST dump format."); 2454 case ADOF_JSON: 2455 Format = "json"; 2456 break; 2457 } 2458 2459 if (Opts.ASTDumpAll) 2460 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2461 if (Opts.ASTDumpDecls) 2462 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2463 } else { 2464 if (Opts.ASTDumpAll) 2465 GenerateArg(Args, OPT_ast_dump_all, SA); 2466 if (Opts.ASTDumpDecls) 2467 GenerateArg(Args, OPT_ast_dump, SA); 2468 } 2469 }; 2470 } 2471 2472 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2473 GenerateProgramAction = [&]() { 2474 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2475 }; 2476 } 2477 2478 GenerateProgramAction(); 2479 2480 for (const auto &PluginArgs : Opts.PluginArgs) 2481 for (const auto &PluginArg : PluginArgs.second) 2482 GenerateArg(Args, OPT_plugin_arg, PluginArgs.first + PluginArg, SA); 2483 2484 for (const auto &Ext : Opts.ModuleFileExtensions) 2485 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2486 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2487 2488 if (!Opts.CodeCompletionAt.FileName.empty()) 2489 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2490 SA); 2491 2492 for (const auto &Plugin : Opts.Plugins) 2493 GenerateArg(Args, OPT_load, Plugin, SA); 2494 2495 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2496 2497 for (const auto &ModuleFile : Opts.ModuleFiles) 2498 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2499 2500 if (Opts.AuxTargetCPU.hasValue()) 2501 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2502 2503 if (Opts.AuxTargetFeatures.hasValue()) 2504 for (const auto &Feature : *Opts.AuxTargetFeatures) 2505 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2506 2507 { 2508 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2509 StringRef ModuleMap = 2510 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2511 StringRef Header = IsHeader ? "-header" : ""; 2512 2513 StringRef Lang; 2514 switch (Opts.DashX.getLanguage()) { 2515 case Language::C: 2516 Lang = "c"; 2517 break; 2518 case Language::OpenCL: 2519 Lang = "cl"; 2520 break; 2521 case Language::OpenCLCXX: 2522 Lang = "clcpp"; 2523 break; 2524 case Language::CUDA: 2525 Lang = "cuda"; 2526 break; 2527 case Language::HIP: 2528 Lang = "hip"; 2529 break; 2530 case Language::CXX: 2531 Lang = "c++"; 2532 break; 2533 case Language::ObjC: 2534 Lang = "objective-c"; 2535 break; 2536 case Language::ObjCXX: 2537 Lang = "objective-c++"; 2538 break; 2539 case Language::RenderScript: 2540 Lang = "renderscript"; 2541 break; 2542 case Language::Asm: 2543 Lang = "assembler-with-cpp"; 2544 break; 2545 case Language::Unknown: 2546 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2547 "Generating -x argument for unknown language (not precompiled)."); 2548 Lang = "ast"; 2549 break; 2550 case Language::LLVM_IR: 2551 Lang = "ir"; 2552 break; 2553 } 2554 2555 GenerateArg(Args, OPT_x, Lang + Header + ModuleMap + Preprocessed, SA); 2556 } 2557 2558 // OPT_INPUT has a unique class, generate it directly. 2559 for (const auto &Input : Opts.Inputs) 2560 Args.push_back(SA(Input.getFile())); 2561 } 2562 2563 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2564 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2565 FrontendOptions &FrontendOpts = Opts; 2566 bool Success = true; 2567 unsigned NumErrorsBefore = Diags.getNumErrors(); 2568 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2569 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2570 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2571 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2572 MERGER, EXTRACTOR, TABLE_INDEX) \ 2573 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2574 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2575 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2576 MERGER, TABLE_INDEX) 2577 #include "clang/Driver/Options.inc" 2578 #undef FRONTEND_OPTION_WITH_MARSHALLING 2579 2580 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2581 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2582 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2583 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2584 assert(ProgramAction && "Option specifier not in Action_Group."); 2585 2586 if (ProgramAction == frontend::ASTDump && 2587 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2588 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2589 .CaseLower("default", ADOF_Default) 2590 .CaseLower("json", ADOF_JSON) 2591 .Default(std::numeric_limits<unsigned>::max()); 2592 2593 if (Val != std::numeric_limits<unsigned>::max()) 2594 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2595 else { 2596 Diags.Report(diag::err_drv_invalid_value) 2597 << A->getAsString(Args) << A->getValue(); 2598 Opts.ASTDumpFormat = ADOF_Default; 2599 } 2600 } 2601 2602 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2603 Opts.FixItSuffix = A->getValue(); 2604 2605 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2606 StringRef ArgStr = 2607 Args.hasArg(OPT_interface_stub_version_EQ) 2608 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2609 : "experimental-ifs-v2"; 2610 if (ArgStr == "experimental-yaml-elf-v1" || 2611 ArgStr == "experimental-ifs-v1" || 2612 ArgStr == "experimental-tapi-elf-v1") { 2613 std::string ErrorMessage = 2614 "Invalid interface stub format: " + ArgStr.str() + 2615 " is deprecated."; 2616 Diags.Report(diag::err_drv_invalid_value) 2617 << "Must specify a valid interface stub format type, ie: " 2618 "-interface-stub-version=experimental-ifs-v2" 2619 << ErrorMessage; 2620 ProgramAction = frontend::ParseSyntaxOnly; 2621 } else if (!ArgStr.startswith("experimental-ifs-")) { 2622 std::string ErrorMessage = 2623 "Invalid interface stub format: " + ArgStr.str() + "."; 2624 Diags.Report(diag::err_drv_invalid_value) 2625 << "Must specify a valid interface stub format type, ie: " 2626 "-interface-stub-version=experimental-ifs-v2" 2627 << ErrorMessage; 2628 ProgramAction = frontend::ParseSyntaxOnly; 2629 } 2630 } 2631 2632 Opts.ProgramAction = *ProgramAction; 2633 } 2634 2635 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2636 Opts.Plugins.emplace_back(A->getValue(0)); 2637 Opts.ProgramAction = frontend::PluginAction; 2638 Opts.ActionName = A->getValue(); 2639 } 2640 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2641 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2642 2643 for (const std::string &Arg : 2644 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2645 std::string BlockName; 2646 unsigned MajorVersion; 2647 unsigned MinorVersion; 2648 bool Hashed; 2649 std::string UserInfo; 2650 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2651 MinorVersion, Hashed, UserInfo)) { 2652 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2653 2654 continue; 2655 } 2656 2657 // Add the testing module file extension. 2658 Opts.ModuleFileExtensions.push_back( 2659 std::make_shared<TestModuleFileExtension>( 2660 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2661 } 2662 2663 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2664 Opts.CodeCompletionAt = 2665 ParsedSourceLocation::FromString(A->getValue()); 2666 if (Opts.CodeCompletionAt.FileName.empty()) 2667 Diags.Report(diag::err_drv_invalid_value) 2668 << A->getAsString(Args) << A->getValue(); 2669 } 2670 2671 Opts.Plugins = Args.getAllArgValues(OPT_load); 2672 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2673 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2674 // Only the -fmodule-file=<file> form. 2675 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2676 StringRef Val = A->getValue(); 2677 if (Val.find('=') == StringRef::npos) 2678 Opts.ModuleFiles.push_back(std::string(Val)); 2679 } 2680 2681 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2682 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2683 << "-emit-module"; 2684 2685 if (Args.hasArg(OPT_aux_target_cpu)) 2686 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2687 if (Args.hasArg(OPT_aux_target_feature)) 2688 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2689 2690 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2691 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2692 Diags.Report(diag::err_drv_argument_not_allowed_with) 2693 << "ARC migration" << "ObjC migration"; 2694 } 2695 2696 InputKind DashX(Language::Unknown); 2697 if (const Arg *A = Args.getLastArg(OPT_x)) { 2698 StringRef XValue = A->getValue(); 2699 2700 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2701 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2702 bool Preprocessed = XValue.consume_back("-cpp-output"); 2703 bool ModuleMap = XValue.consume_back("-module-map"); 2704 IsHeaderFile = !Preprocessed && !ModuleMap && 2705 XValue != "precompiled-header" && 2706 XValue.consume_back("-header"); 2707 2708 // Principal languages. 2709 DashX = llvm::StringSwitch<InputKind>(XValue) 2710 .Case("c", Language::C) 2711 .Case("cl", Language::OpenCL) 2712 .Case("clcpp", Language::OpenCLCXX) 2713 .Case("cuda", Language::CUDA) 2714 .Case("hip", Language::HIP) 2715 .Case("c++", Language::CXX) 2716 .Case("objective-c", Language::ObjC) 2717 .Case("objective-c++", Language::ObjCXX) 2718 .Case("renderscript", Language::RenderScript) 2719 .Default(Language::Unknown); 2720 2721 // "objc[++]-cpp-output" is an acceptable synonym for 2722 // "objective-c[++]-cpp-output". 2723 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2724 DashX = llvm::StringSwitch<InputKind>(XValue) 2725 .Case("objc", Language::ObjC) 2726 .Case("objc++", Language::ObjCXX) 2727 .Default(Language::Unknown); 2728 2729 // Some special cases cannot be combined with suffixes. 2730 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2731 DashX = llvm::StringSwitch<InputKind>(XValue) 2732 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2733 .Case("assembler-with-cpp", Language::Asm) 2734 .Cases("ast", "pcm", "precompiled-header", 2735 InputKind(Language::Unknown, InputKind::Precompiled)) 2736 .Case("ir", Language::LLVM_IR) 2737 .Default(Language::Unknown); 2738 2739 if (DashX.isUnknown()) 2740 Diags.Report(diag::err_drv_invalid_value) 2741 << A->getAsString(Args) << A->getValue(); 2742 2743 if (Preprocessed) 2744 DashX = DashX.getPreprocessed(); 2745 if (ModuleMap) 2746 DashX = DashX.withFormat(InputKind::ModuleMap); 2747 } 2748 2749 // '-' is the default input if none is given. 2750 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2751 Opts.Inputs.clear(); 2752 if (Inputs.empty()) 2753 Inputs.push_back("-"); 2754 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2755 InputKind IK = DashX; 2756 if (IK.isUnknown()) { 2757 IK = FrontendOptions::getInputKindForExtension( 2758 StringRef(Inputs[i]).rsplit('.').second); 2759 // FIXME: Warn on this? 2760 if (IK.isUnknown()) 2761 IK = Language::C; 2762 // FIXME: Remove this hack. 2763 if (i == 0) 2764 DashX = IK; 2765 } 2766 2767 bool IsSystem = false; 2768 2769 // The -emit-module action implicitly takes a module map. 2770 if (Opts.ProgramAction == frontend::GenerateModule && 2771 IK.getFormat() == InputKind::Source) { 2772 IK = IK.withFormat(InputKind::ModuleMap); 2773 IsSystem = Opts.IsSystemModule; 2774 } 2775 2776 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2777 } 2778 2779 Opts.DashX = DashX; 2780 2781 return Diags.getNumErrors() == NumErrorsBefore; 2782 } 2783 2784 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2785 void *MainAddr) { 2786 std::string ClangExecutable = 2787 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2788 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2789 } 2790 2791 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2792 SmallVectorImpl<const char *> &Args, 2793 CompilerInvocation::StringAllocator SA) { 2794 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2795 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2796 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2797 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2798 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2799 MERGER, EXTRACTOR, TABLE_INDEX) \ 2800 GENERATE_OPTION_WITH_MARSHALLING( \ 2801 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2802 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2803 #include "clang/Driver/Options.inc" 2804 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2805 2806 if (Opts.UseLibcxx) 2807 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2808 2809 if (!Opts.ModuleCachePath.empty()) 2810 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2811 2812 for (const auto &File : Opts.PrebuiltModuleFiles) 2813 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2814 2815 for (const auto &Path : Opts.PrebuiltModulePaths) 2816 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2817 2818 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2819 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2820 2821 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2822 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2823 llvm::Optional<bool> IsFramework, 2824 llvm::Optional<bool> IgnoreSysRoot) { 2825 return llvm::find(Groups, Entry.Group) != Groups.end() && 2826 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2827 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2828 }; 2829 2830 auto It = Opts.UserEntries.begin(); 2831 auto End = Opts.UserEntries.end(); 2832 2833 // Add -I..., -F..., and -index-header-map options in order. 2834 for (; It < End && 2835 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2836 ++It) { 2837 OptSpecifier Opt = [It, Matches]() { 2838 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2839 return OPT_F; 2840 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2841 return OPT_I; 2842 if (Matches(*It, frontend::Angled, true, true)) 2843 return OPT_F; 2844 if (Matches(*It, frontend::Angled, false, true)) 2845 return OPT_I; 2846 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2847 }(); 2848 2849 if (It->Group == frontend::IndexHeaderMap) 2850 GenerateArg(Args, OPT_index_header_map, SA); 2851 GenerateArg(Args, Opt, It->Path, SA); 2852 }; 2853 2854 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2855 // have already been generated as "-I[xx]yy". If that's the case, their 2856 // position on command line was such that this has no semantic impact on 2857 // include paths. 2858 for (; It < End && 2859 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2860 ++It) { 2861 OptSpecifier Opt = 2862 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2863 GenerateArg(Args, Opt, It->Path, SA); 2864 } 2865 2866 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2867 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2868 // command line was such that this has no semantic impact on include paths. 2869 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2870 GenerateArg(Args, OPT_idirafter, It->Path, SA); 2871 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 2872 GenerateArg(Args, OPT_iquote, It->Path, SA); 2873 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 2874 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 2875 It->Path, SA); 2876 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 2877 GenerateArg(Args, OPT_iframework, It->Path, SA); 2878 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 2879 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 2880 2881 // Add the paths for the various language specific isystem flags. 2882 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 2883 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 2884 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 2885 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 2886 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 2887 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 2888 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 2889 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 2890 2891 // Add the internal paths from a driver that detects standard include paths. 2892 // Note: Some paths that came from "-internal-isystem" arguments may have 2893 // already been generated as "-isystem". If that's the case, their position on 2894 // command line was such that this has no semantic impact on include paths. 2895 for (; It < End && 2896 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 2897 ++It) { 2898 OptSpecifier Opt = It->Group == frontend::System 2899 ? OPT_internal_isystem 2900 : OPT_internal_externc_isystem; 2901 GenerateArg(Args, Opt, It->Path, SA); 2902 } 2903 2904 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 2905 2906 // Add the path prefixes which are implicitly treated as being system headers. 2907 for (const auto &P : Opts.SystemHeaderPrefixes) { 2908 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 2909 : OPT_no_system_header_prefix; 2910 GenerateArg(Args, Opt, P.Prefix, SA); 2911 } 2912 2913 for (const std::string &F : Opts.VFSOverlayFiles) 2914 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 2915 } 2916 2917 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2918 DiagnosticsEngine &Diags, 2919 const std::string &WorkingDir) { 2920 HeaderSearchOptions *HeaderSearchOpts = &Opts; 2921 bool Success = true; 2922 2923 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2924 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2925 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2926 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2927 MERGER, EXTRACTOR, TABLE_INDEX) \ 2928 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2929 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2930 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2931 MERGER, TABLE_INDEX) 2932 #include "clang/Driver/Options.inc" 2933 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2934 2935 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2936 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2937 2938 // Canonicalize -fmodules-cache-path before storing it. 2939 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2940 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2941 if (WorkingDir.empty()) 2942 llvm::sys::fs::make_absolute(P); 2943 else 2944 llvm::sys::fs::make_absolute(WorkingDir, P); 2945 } 2946 llvm::sys::path::remove_dots(P); 2947 Opts.ModuleCachePath = std::string(P.str()); 2948 2949 // Only the -fmodule-file=<name>=<file> form. 2950 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2951 StringRef Val = A->getValue(); 2952 if (Val.find('=') != StringRef::npos){ 2953 auto Split = Val.split('='); 2954 Opts.PrebuiltModuleFiles.insert( 2955 {std::string(Split.first), std::string(Split.second)}); 2956 } 2957 } 2958 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2959 Opts.AddPrebuiltModulePath(A->getValue()); 2960 2961 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2962 StringRef MacroDef = A->getValue(); 2963 Opts.ModulesIgnoreMacros.insert( 2964 llvm::CachedHashString(MacroDef.split('=').first)); 2965 } 2966 2967 // Add -I..., -F..., and -index-header-map options in order. 2968 bool IsIndexHeaderMap = false; 2969 bool IsSysrootSpecified = 2970 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2971 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2972 if (A->getOption().matches(OPT_index_header_map)) { 2973 // -index-header-map applies to the next -I or -F. 2974 IsIndexHeaderMap = true; 2975 continue; 2976 } 2977 2978 frontend::IncludeDirGroup Group = 2979 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2980 2981 bool IsFramework = A->getOption().matches(OPT_F); 2982 std::string Path = A->getValue(); 2983 2984 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2985 SmallString<32> Buffer; 2986 llvm::sys::path::append(Buffer, Opts.Sysroot, 2987 llvm::StringRef(A->getValue()).substr(1)); 2988 Path = std::string(Buffer.str()); 2989 } 2990 2991 Opts.AddPath(Path, Group, IsFramework, 2992 /*IgnoreSysroot*/ true); 2993 IsIndexHeaderMap = false; 2994 } 2995 2996 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2997 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2998 for (const auto *A : 2999 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3000 if (A->getOption().matches(OPT_iprefix)) 3001 Prefix = A->getValue(); 3002 else if (A->getOption().matches(OPT_iwithprefix)) 3003 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3004 else 3005 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3006 } 3007 3008 for (const auto *A : Args.filtered(OPT_idirafter)) 3009 Opts.AddPath(A->getValue(), frontend::After, false, true); 3010 for (const auto *A : Args.filtered(OPT_iquote)) 3011 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3012 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3013 Opts.AddPath(A->getValue(), frontend::System, false, 3014 !A->getOption().matches(OPT_iwithsysroot)); 3015 for (const auto *A : Args.filtered(OPT_iframework)) 3016 Opts.AddPath(A->getValue(), frontend::System, true, true); 3017 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3018 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3019 /*IgnoreSysRoot=*/false); 3020 3021 // Add the paths for the various language specific isystem flags. 3022 for (const auto *A : Args.filtered(OPT_c_isystem)) 3023 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3024 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3025 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3026 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3027 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3028 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3029 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3030 3031 // Add the internal paths from a driver that detects standard include paths. 3032 for (const auto *A : 3033 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3034 frontend::IncludeDirGroup Group = frontend::System; 3035 if (A->getOption().matches(OPT_internal_externc_isystem)) 3036 Group = frontend::ExternCSystem; 3037 Opts.AddPath(A->getValue(), Group, false, true); 3038 } 3039 3040 // Add the path prefixes which are implicitly treated as being system headers. 3041 for (const auto *A : 3042 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3043 Opts.AddSystemHeaderPrefix( 3044 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3045 3046 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3047 Opts.AddVFSOverlayFile(A->getValue()); 3048 3049 return Success; 3050 } 3051 3052 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 3053 const llvm::Triple &T, 3054 std::vector<std::string> &Includes, 3055 LangStandard::Kind LangStd) { 3056 // Set some properties which depend solely on the input kind; it would be nice 3057 // to move these to the language standard, and have the driver resolve the 3058 // input kind + language standard. 3059 // 3060 // FIXME: Perhaps a better model would be for a single source file to have 3061 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 3062 // simultaneously active? 3063 if (IK.getLanguage() == Language::Asm) { 3064 Opts.AsmPreprocessor = 1; 3065 } else if (IK.isObjectiveC()) { 3066 Opts.ObjC = 1; 3067 } 3068 3069 if (LangStd == LangStandard::lang_unspecified) { 3070 // Based on the base language, pick one. 3071 switch (IK.getLanguage()) { 3072 case Language::Unknown: 3073 case Language::LLVM_IR: 3074 llvm_unreachable("Invalid input kind!"); 3075 case Language::OpenCL: 3076 LangStd = LangStandard::lang_opencl10; 3077 break; 3078 case Language::OpenCLCXX: 3079 LangStd = LangStandard::lang_openclcpp; 3080 break; 3081 case Language::CUDA: 3082 LangStd = LangStandard::lang_cuda; 3083 break; 3084 case Language::Asm: 3085 case Language::C: 3086 #if defined(CLANG_DEFAULT_STD_C) 3087 LangStd = CLANG_DEFAULT_STD_C; 3088 #else 3089 // The PS4 uses C99 as the default C standard. 3090 if (T.isPS4()) 3091 LangStd = LangStandard::lang_gnu99; 3092 else 3093 LangStd = LangStandard::lang_gnu17; 3094 #endif 3095 break; 3096 case Language::ObjC: 3097 #if defined(CLANG_DEFAULT_STD_C) 3098 LangStd = CLANG_DEFAULT_STD_C; 3099 #else 3100 LangStd = LangStandard::lang_gnu11; 3101 #endif 3102 break; 3103 case Language::CXX: 3104 case Language::ObjCXX: 3105 #if defined(CLANG_DEFAULT_STD_CXX) 3106 LangStd = CLANG_DEFAULT_STD_CXX; 3107 #else 3108 LangStd = LangStandard::lang_gnucxx14; 3109 #endif 3110 break; 3111 case Language::RenderScript: 3112 LangStd = LangStandard::lang_c99; 3113 break; 3114 case Language::HIP: 3115 LangStd = LangStandard::lang_hip; 3116 break; 3117 } 3118 } 3119 3120 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3121 Opts.LangStd = LangStd; 3122 Opts.LineComment = Std.hasLineComments(); 3123 Opts.C99 = Std.isC99(); 3124 Opts.C11 = Std.isC11(); 3125 Opts.C17 = Std.isC17(); 3126 Opts.C2x = Std.isC2x(); 3127 Opts.CPlusPlus = Std.isCPlusPlus(); 3128 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 3129 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 3130 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 3131 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 3132 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 3133 Opts.GNUMode = Std.isGNUMode(); 3134 Opts.GNUCVersion = 0; 3135 Opts.HexFloats = Std.hasHexFloats(); 3136 Opts.ImplicitInt = Std.hasImplicitInt(); 3137 3138 Opts.CPlusPlusModules = Opts.CPlusPlus20; 3139 3140 // Set OpenCL Version. 3141 Opts.OpenCL = Std.isOpenCL(); 3142 if (LangStd == LangStandard::lang_opencl10) 3143 Opts.OpenCLVersion = 100; 3144 else if (LangStd == LangStandard::lang_opencl11) 3145 Opts.OpenCLVersion = 110; 3146 else if (LangStd == LangStandard::lang_opencl12) 3147 Opts.OpenCLVersion = 120; 3148 else if (LangStd == LangStandard::lang_opencl20) 3149 Opts.OpenCLVersion = 200; 3150 else if (LangStd == LangStandard::lang_opencl30) 3151 Opts.OpenCLVersion = 300; 3152 else if (LangStd == LangStandard::lang_openclcpp) 3153 Opts.OpenCLCPlusPlusVersion = 100; 3154 3155 // OpenCL has some additional defaults. 3156 if (Opts.OpenCL) { 3157 Opts.AltiVec = 0; 3158 Opts.ZVector = 0; 3159 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3160 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 3161 Opts.OpenCLPipe = Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3162 Opts.OpenCLGenericAddressSpace = 3163 Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3164 3165 // Include default header file for OpenCL. 3166 if (Opts.IncludeDefaultHeader) { 3167 if (Opts.DeclareOpenCLBuiltins) { 3168 // Only include base header file for builtin types and constants. 3169 Includes.push_back("opencl-c-base.h"); 3170 } else { 3171 Includes.push_back("opencl-c.h"); 3172 } 3173 } 3174 } 3175 3176 Opts.HIP = IK.getLanguage() == Language::HIP; 3177 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 3178 if (Opts.HIP) { 3179 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 3180 // fuses multiplication/addition instructions without contract flag from 3181 // device library functions in LLVM bitcode, which causes accuracy loss in 3182 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 3183 // For device library functions in bitcode to work, 'Strict' or 'Standard' 3184 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 3185 // FP contract option is used to allow fuse across statements in frontend 3186 // whereas respecting contract flag in backend. 3187 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3188 } else if (Opts.CUDA) { 3189 // Allow fuse across statements disregarding pragmas. 3190 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3191 } 3192 3193 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 3194 3195 // OpenCL and C++ both have bool, true, false keywords. 3196 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 3197 3198 // OpenCL has half keyword 3199 Opts.Half = Opts.OpenCL; 3200 } 3201 3202 /// Check if input file kind and language standard are compatible. 3203 static bool IsInputCompatibleWithStandard(InputKind IK, 3204 const LangStandard &S) { 3205 switch (IK.getLanguage()) { 3206 case Language::Unknown: 3207 case Language::LLVM_IR: 3208 llvm_unreachable("should not parse language flags for this input"); 3209 3210 case Language::C: 3211 case Language::ObjC: 3212 case Language::RenderScript: 3213 return S.getLanguage() == Language::C; 3214 3215 case Language::OpenCL: 3216 return S.getLanguage() == Language::OpenCL || 3217 S.getLanguage() == Language::OpenCLCXX; 3218 3219 case Language::OpenCLCXX: 3220 return S.getLanguage() == Language::OpenCLCXX; 3221 3222 case Language::CXX: 3223 case Language::ObjCXX: 3224 return S.getLanguage() == Language::CXX; 3225 3226 case Language::CUDA: 3227 // FIXME: What -std= values should be permitted for CUDA compilations? 3228 return S.getLanguage() == Language::CUDA || 3229 S.getLanguage() == Language::CXX; 3230 3231 case Language::HIP: 3232 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3233 3234 case Language::Asm: 3235 // Accept (and ignore) all -std= values. 3236 // FIXME: The -std= value is not ignored; it affects the tokenization 3237 // and preprocessing rules if we're preprocessing this asm input. 3238 return true; 3239 } 3240 3241 llvm_unreachable("unexpected input language"); 3242 } 3243 3244 /// Get language name for given input kind. 3245 static const StringRef GetInputKindName(InputKind IK) { 3246 switch (IK.getLanguage()) { 3247 case Language::C: 3248 return "C"; 3249 case Language::ObjC: 3250 return "Objective-C"; 3251 case Language::CXX: 3252 return "C++"; 3253 case Language::ObjCXX: 3254 return "Objective-C++"; 3255 case Language::OpenCL: 3256 return "OpenCL"; 3257 case Language::OpenCLCXX: 3258 return "C++ for OpenCL"; 3259 case Language::CUDA: 3260 return "CUDA"; 3261 case Language::RenderScript: 3262 return "RenderScript"; 3263 case Language::HIP: 3264 return "HIP"; 3265 3266 case Language::Asm: 3267 return "Asm"; 3268 case Language::LLVM_IR: 3269 return "LLVM IR"; 3270 3271 case Language::Unknown: 3272 break; 3273 } 3274 llvm_unreachable("unknown input language"); 3275 } 3276 3277 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3278 SmallVectorImpl<const char *> &Args, 3279 StringAllocator SA, 3280 const llvm::Triple &T) { 3281 OptSpecifier StdOpt; 3282 switch (Opts.LangStd) { 3283 case LangStandard::lang_opencl10: 3284 case LangStandard::lang_opencl11: 3285 case LangStandard::lang_opencl12: 3286 case LangStandard::lang_opencl20: 3287 case LangStandard::lang_opencl30: 3288 case LangStandard::lang_openclcpp: 3289 StdOpt = OPT_cl_std_EQ; 3290 break; 3291 default: 3292 StdOpt = OPT_std_EQ; 3293 break; 3294 } 3295 3296 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3297 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3298 3299 if (Opts.IncludeDefaultHeader) 3300 GenerateArg(Args, OPT_finclude_default_header, SA); 3301 if (Opts.DeclareOpenCLBuiltins) 3302 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3303 3304 const LangOptions *LangOpts = &Opts; 3305 3306 #define LANG_OPTION_WITH_MARSHALLING( \ 3307 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3308 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3309 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3310 MERGER, EXTRACTOR, TABLE_INDEX) \ 3311 GENERATE_OPTION_WITH_MARSHALLING( \ 3312 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3313 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3314 #include "clang/Driver/Options.inc" 3315 #undef LANG_OPTION_WITH_MARSHALLING 3316 3317 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3318 3319 if (Opts.ObjC) { 3320 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3321 3322 if (Opts.GC == LangOptions::GCOnly) 3323 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3324 else if (Opts.GC == LangOptions::HybridGC) 3325 GenerateArg(Args, OPT_fobjc_gc, SA); 3326 else if (Opts.ObjCAutoRefCount == 1) 3327 GenerateArg(Args, OPT_fobjc_arc, SA); 3328 3329 if (Opts.ObjCWeakRuntime) 3330 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3331 3332 if (Opts.ObjCWeak) 3333 GenerateArg(Args, OPT_fobjc_weak, SA); 3334 3335 if (Opts.ObjCSubscriptingLegacyRuntime) 3336 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3337 } 3338 3339 if (Opts.GNUCVersion != 0) { 3340 unsigned Major = Opts.GNUCVersion / 100 / 100; 3341 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3342 unsigned Patch = Opts.GNUCVersion % 100; 3343 GenerateArg(Args, OPT_fgnuc_version_EQ, 3344 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3345 } 3346 3347 if (Opts.IgnoreXCOFFVisibility) 3348 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3349 3350 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3351 GenerateArg(Args, OPT_ftrapv, SA); 3352 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3353 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3354 GenerateArg(Args, OPT_fwrapv, SA); 3355 } 3356 3357 if (Opts.MSCompatibilityVersion != 0) { 3358 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3359 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3360 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3361 GenerateArg(Args, OPT_fms_compatibility_version, 3362 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3363 } 3364 3365 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3366 if (!Opts.Trigraphs) 3367 GenerateArg(Args, OPT_fno_trigraphs, SA); 3368 } else { 3369 if (Opts.Trigraphs) 3370 GenerateArg(Args, OPT_ftrigraphs, SA); 3371 } 3372 3373 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3374 GenerateArg(Args, OPT_fblocks, SA); 3375 3376 if (Opts.ConvergentFunctions && 3377 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3378 GenerateArg(Args, OPT_fconvergent_functions, SA); 3379 3380 if (Opts.NoBuiltin && !Opts.Freestanding) 3381 GenerateArg(Args, OPT_fno_builtin, SA); 3382 3383 if (!Opts.NoBuiltin) 3384 for (const auto &Func : Opts.NoBuiltinFuncs) 3385 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3386 3387 if (Opts.LongDoubleSize == 128) 3388 GenerateArg(Args, OPT_mlong_double_128, SA); 3389 else if (Opts.LongDoubleSize == 64) 3390 GenerateArg(Args, OPT_mlong_double_64, SA); 3391 3392 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3393 3394 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3395 // '-fopenmp-targets='. 3396 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3397 GenerateArg(Args, OPT_fopenmp, SA); 3398 3399 if (Opts.OpenMP != 50) 3400 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3401 3402 if (!Opts.OpenMPUseTLS) 3403 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3404 3405 if (Opts.OpenMPIsDevice) 3406 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3407 3408 if (Opts.OpenMPIRBuilder) 3409 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3410 } 3411 3412 if (Opts.OpenMPSimd) { 3413 GenerateArg(Args, OPT_fopenmp_simd, SA); 3414 3415 if (Opts.OpenMP != 50) 3416 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3417 } 3418 3419 if (Opts.OpenMPCUDANumSMs != 0) 3420 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3421 Twine(Opts.OpenMPCUDANumSMs), SA); 3422 3423 if (Opts.OpenMPCUDABlocksPerSM != 0) 3424 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3425 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3426 3427 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3428 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3429 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3430 3431 if (!Opts.OMPTargetTriples.empty()) { 3432 std::string Targets; 3433 llvm::raw_string_ostream OS(Targets); 3434 llvm::interleave( 3435 Opts.OMPTargetTriples, OS, 3436 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3437 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3438 } 3439 3440 if (!Opts.OMPHostIRFile.empty()) 3441 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3442 3443 if (Opts.OpenMPCUDAMode) 3444 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3445 3446 if (Opts.OpenMPCUDATargetParallel) 3447 GenerateArg(Args, OPT_fopenmp_cuda_parallel_target_regions, SA); 3448 3449 if (Opts.OpenMPCUDAForceFullRuntime) 3450 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3451 3452 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3453 // generated from CodeGenOptions. 3454 3455 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3456 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3457 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3458 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3459 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3460 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3461 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3462 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3463 3464 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3465 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3466 3467 // Conflating '-fsanitize-system-blacklist' and '-fsanitize-blacklist'. 3468 for (const std::string &F : Opts.NoSanitizeFiles) 3469 GenerateArg(Args, OPT_fsanitize_blacklist, F, SA); 3470 3471 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3472 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3473 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3474 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3475 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3476 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3477 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3478 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3479 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3480 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3481 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3482 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3483 3484 if (Opts.getSignReturnAddressScope() == 3485 LangOptions::SignReturnAddressScopeKind::All) 3486 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3487 else if (Opts.getSignReturnAddressScope() == 3488 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3489 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3490 3491 if (Opts.getSignReturnAddressKey() == 3492 LangOptions::SignReturnAddressKeyKind::BKey) 3493 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3494 } 3495 3496 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3497 InputKind IK, const llvm::Triple &T, 3498 std::vector<std::string> &Includes, 3499 DiagnosticsEngine &Diags) { 3500 unsigned NumErrorsBefore = Diags.getNumErrors(); 3501 3502 // FIXME: Cleanup per-file based stuff. 3503 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3504 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3505 LangStd = LangStandard::getLangKind(A->getValue()); 3506 if (LangStd == LangStandard::lang_unspecified) { 3507 Diags.Report(diag::err_drv_invalid_value) 3508 << A->getAsString(Args) << A->getValue(); 3509 // Report supported standards with short description. 3510 for (unsigned KindValue = 0; 3511 KindValue != LangStandard::lang_unspecified; 3512 ++KindValue) { 3513 const LangStandard &Std = LangStandard::getLangStandardForKind( 3514 static_cast<LangStandard::Kind>(KindValue)); 3515 if (IsInputCompatibleWithStandard(IK, Std)) { 3516 auto Diag = Diags.Report(diag::note_drv_use_standard); 3517 Diag << Std.getName() << Std.getDescription(); 3518 unsigned NumAliases = 0; 3519 #define LANGSTANDARD(id, name, lang, desc, features) 3520 #define LANGSTANDARD_ALIAS(id, alias) \ 3521 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3522 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3523 #include "clang/Basic/LangStandards.def" 3524 Diag << NumAliases; 3525 #define LANGSTANDARD(id, name, lang, desc, features) 3526 #define LANGSTANDARD_ALIAS(id, alias) \ 3527 if (KindValue == LangStandard::lang_##id) Diag << alias; 3528 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3529 #include "clang/Basic/LangStandards.def" 3530 } 3531 } 3532 } else { 3533 // Valid standard, check to make sure language and standard are 3534 // compatible. 3535 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3536 if (!IsInputCompatibleWithStandard(IK, Std)) { 3537 Diags.Report(diag::err_drv_argument_not_allowed_with) 3538 << A->getAsString(Args) << GetInputKindName(IK); 3539 } 3540 } 3541 } 3542 3543 // -cl-std only applies for OpenCL language standards. 3544 // Override the -std option in this case. 3545 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3546 LangStandard::Kind OpenCLLangStd 3547 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3548 .Cases("cl", "CL", LangStandard::lang_opencl10) 3549 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3550 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3551 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3552 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3553 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3554 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 3555 .Default(LangStandard::lang_unspecified); 3556 3557 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3558 Diags.Report(diag::err_drv_invalid_value) 3559 << A->getAsString(Args) << A->getValue(); 3560 } 3561 else 3562 LangStd = OpenCLLangStd; 3563 } 3564 3565 // These need to be parsed now. They are used to set OpenCL defaults. 3566 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3567 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3568 3569 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd); 3570 3571 // The key paths of codegen options defined in Options.td start with 3572 // "LangOpts->". Let's provide the expected variable name and type. 3573 LangOptions *LangOpts = &Opts; 3574 bool Success = true; 3575 3576 #define LANG_OPTION_WITH_MARSHALLING( \ 3577 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3578 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3579 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3580 MERGER, EXTRACTOR, TABLE_INDEX) \ 3581 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 3582 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3583 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 3584 MERGER, TABLE_INDEX) 3585 #include "clang/Driver/Options.inc" 3586 #undef LANG_OPTION_WITH_MARSHALLING 3587 3588 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3589 StringRef Name = A->getValue(); 3590 if (Name == "full" || Name == "branch") { 3591 Opts.CFProtectionBranch = 1; 3592 } 3593 } 3594 3595 if (Opts.ObjC) { 3596 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3597 StringRef value = arg->getValue(); 3598 if (Opts.ObjCRuntime.tryParse(value)) 3599 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3600 } 3601 3602 if (Args.hasArg(OPT_fobjc_gc_only)) 3603 Opts.setGC(LangOptions::GCOnly); 3604 else if (Args.hasArg(OPT_fobjc_gc)) 3605 Opts.setGC(LangOptions::HybridGC); 3606 else if (Args.hasArg(OPT_fobjc_arc)) { 3607 Opts.ObjCAutoRefCount = 1; 3608 if (!Opts.ObjCRuntime.allowsARC()) 3609 Diags.Report(diag::err_arc_unsupported_on_runtime); 3610 } 3611 3612 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3613 // whether the feature is actually enabled. This is predominantly 3614 // determined by -fobjc-runtime, but we allow it to be overridden 3615 // from the command line for testing purposes. 3616 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3617 Opts.ObjCWeakRuntime = 1; 3618 else 3619 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3620 3621 // ObjCWeak determines whether __weak is actually enabled. 3622 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3623 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3624 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3625 assert(!Opts.ObjCWeak); 3626 } else if (Opts.getGC() != LangOptions::NonGC) { 3627 Diags.Report(diag::err_objc_weak_with_gc); 3628 } else if (!Opts.ObjCWeakRuntime) { 3629 Diags.Report(diag::err_objc_weak_unsupported); 3630 } else { 3631 Opts.ObjCWeak = 1; 3632 } 3633 } else if (Opts.ObjCAutoRefCount) { 3634 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3635 } 3636 3637 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3638 Opts.ObjCSubscriptingLegacyRuntime = 3639 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3640 } 3641 3642 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3643 // Check that the version has 1 to 3 components and the minor and patch 3644 // versions fit in two decimal digits. 3645 VersionTuple GNUCVer; 3646 bool Invalid = GNUCVer.tryParse(A->getValue()); 3647 unsigned Major = GNUCVer.getMajor(); 3648 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3649 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3650 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3651 Diags.Report(diag::err_drv_invalid_value) 3652 << A->getAsString(Args) << A->getValue(); 3653 } 3654 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3655 } 3656 3657 // In AIX OS, the -mignore-xcoff-visibility is enable by default if there is 3658 // no -fvisibility=* option. 3659 // This is the reason why '-fvisibility' needs to be always generated: 3660 // its absence implies '-mignore-xcoff-visibility'. 3661 // 3662 // Suppose the original cc1 command line does contain '-fvisibility default': 3663 // '-mignore-xcoff-visibility' should not be implied. 3664 // * If '-fvisibility' is not generated (as most options with default values 3665 // don't), its absence would imply '-mignore-xcoff-visibility'. This changes 3666 // the command line semantics. 3667 // * If '-fvisibility' is generated regardless of its presence and value, 3668 // '-mignore-xcoff-visibility' won't be implied and the command line 3669 // semantics are kept intact. 3670 // 3671 // When the original cc1 command line does **not** contain '-fvisibility', 3672 // '-mignore-xcoff-visibility' is implied. The generated command line will 3673 // contain both '-fvisibility default' and '-mignore-xcoff-visibility' and 3674 // subsequent calls to `CreateFromArgs`/`generateCC1CommandLine` will always 3675 // produce the same arguments. 3676 3677 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 3678 !Args.hasArg(OPT_fvisibility))) 3679 Opts.IgnoreXCOFFVisibility = 1; 3680 3681 if (Args.hasArg(OPT_ftrapv)) { 3682 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3683 // Set the handler, if one is specified. 3684 Opts.OverflowHandler = 3685 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3686 } 3687 else if (Args.hasArg(OPT_fwrapv)) 3688 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3689 3690 Opts.MSCompatibilityVersion = 0; 3691 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3692 VersionTuple VT; 3693 if (VT.tryParse(A->getValue())) 3694 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3695 << A->getValue(); 3696 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3697 VT.getMinor().getValueOr(0) * 100000 + 3698 VT.getSubminor().getValueOr(0); 3699 } 3700 3701 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3702 // is specified, or -std is set to a conforming mode. 3703 // Trigraphs are disabled by default in c++1z onwards. 3704 // For z/OS, trigraphs are enabled by default (without regard to the above). 3705 Opts.Trigraphs = 3706 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3707 Opts.Trigraphs = 3708 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3709 3710 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3711 && Opts.OpenCLVersion == 200); 3712 3713 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3714 Opts.SYCLIsDevice || 3715 Args.hasArg(OPT_fconvergent_functions); 3716 3717 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3718 if (!Opts.NoBuiltin) 3719 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3720 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3721 ? 128 3722 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3723 if (Opts.FastRelaxedMath) 3724 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3725 llvm::sort(Opts.ModuleFeatures); 3726 3727 // -mrtd option 3728 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3729 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3730 Diags.Report(diag::err_drv_argument_not_allowed_with) 3731 << A->getSpelling() << "-fdefault-calling-conv"; 3732 else { 3733 if (T.getArch() != llvm::Triple::x86) 3734 Diags.Report(diag::err_drv_argument_not_allowed_with) 3735 << A->getSpelling() << T.getTriple(); 3736 else 3737 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3738 } 3739 } 3740 3741 // Check if -fopenmp is specified and set default version to 5.0. 3742 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3743 // Check if -fopenmp-simd is specified. 3744 bool IsSimdSpecified = 3745 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3746 /*Default=*/false); 3747 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3748 Opts.OpenMPUseTLS = 3749 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3750 Opts.OpenMPIsDevice = 3751 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3752 Opts.OpenMPIRBuilder = 3753 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3754 bool IsTargetSpecified = 3755 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3756 3757 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3758 3759 if (Opts.OpenMP || Opts.OpenMPSimd) { 3760 if (int Version = getLastArgIntValue( 3761 Args, OPT_fopenmp_version_EQ, 3762 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3763 Opts.OpenMP = Version; 3764 // Provide diagnostic when a given target is not expected to be an OpenMP 3765 // device or host. 3766 if (!Opts.OpenMPIsDevice) { 3767 switch (T.getArch()) { 3768 default: 3769 break; 3770 // Add unsupported host targets here: 3771 case llvm::Triple::nvptx: 3772 case llvm::Triple::nvptx64: 3773 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3774 break; 3775 } 3776 } 3777 } 3778 3779 // Set the flag to prevent the implementation from emitting device exception 3780 // handling code for those requiring so. 3781 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3782 Opts.OpenCLCPlusPlus) { 3783 Opts.Exceptions = 0; 3784 Opts.CXXExceptions = 0; 3785 } 3786 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3787 Opts.OpenMPCUDANumSMs = 3788 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3789 Opts.OpenMPCUDANumSMs, Diags); 3790 Opts.OpenMPCUDABlocksPerSM = 3791 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3792 Opts.OpenMPCUDABlocksPerSM, Diags); 3793 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3794 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3795 Opts.OpenMPCUDAReductionBufNum, Diags); 3796 } 3797 3798 // Get the OpenMP target triples if any. 3799 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3800 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3801 auto getArchPtrSize = [](const llvm::Triple &T) { 3802 if (T.isArch16Bit()) 3803 return Arch16Bit; 3804 if (T.isArch32Bit()) 3805 return Arch32Bit; 3806 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3807 return Arch64Bit; 3808 }; 3809 3810 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3811 llvm::Triple TT(A->getValue(i)); 3812 3813 if (TT.getArch() == llvm::Triple::UnknownArch || 3814 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3815 TT.getArch() == llvm::Triple::nvptx || 3816 TT.getArch() == llvm::Triple::nvptx64 || 3817 TT.getArch() == llvm::Triple::amdgcn || 3818 TT.getArch() == llvm::Triple::x86 || 3819 TT.getArch() == llvm::Triple::x86_64)) 3820 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3821 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3822 Diags.Report(diag::err_drv_incompatible_omp_arch) 3823 << A->getValue(i) << T.str(); 3824 else 3825 Opts.OMPTargetTriples.push_back(TT); 3826 } 3827 } 3828 3829 // Get OpenMP host file path if any and report if a non existent file is 3830 // found 3831 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3832 Opts.OMPHostIRFile = A->getValue(); 3833 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3834 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3835 << Opts.OMPHostIRFile; 3836 } 3837 3838 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3839 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3840 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3841 3842 // Set CUDA support for parallel execution of target regions for OpenMP target 3843 // NVPTX/AMDGCN if specified in options. 3844 Opts.OpenMPCUDATargetParallel = 3845 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3846 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 3847 3848 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3849 Opts.OpenMPCUDAForceFullRuntime = 3850 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3851 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3852 3853 // FIXME: Eliminate this dependency. 3854 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3855 OptSize = getOptimizationLevelSize(Args); 3856 Opts.Optimize = Opt != 0; 3857 Opts.OptimizeSize = OptSize != 0; 3858 3859 // This is the __NO_INLINE__ define, which just depends on things like the 3860 // optimization level and -fno-inline, not actually whether the backend has 3861 // inlining enabled. 3862 Opts.NoInlineDefine = !Opts.Optimize; 3863 if (Arg *InlineArg = Args.getLastArg( 3864 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3865 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3866 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3867 Opts.NoInlineDefine = true; 3868 3869 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3870 StringRef Val = A->getValue(); 3871 if (Val == "fast") 3872 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3873 else if (Val == "on") 3874 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3875 else if (Val == "off") 3876 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3877 else if (Val == "fast-honor-pragmas") 3878 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3879 else 3880 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3881 } 3882 3883 // Parse -fsanitize= arguments. 3884 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3885 Diags, Opts.Sanitize); 3886 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3887 std::vector<std::string> systemBlacklists = 3888 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3889 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3890 systemBlacklists.begin(), systemBlacklists.end()); 3891 3892 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3893 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3894 3895 StringRef Ver = A->getValue(); 3896 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3897 unsigned Major, Minor = 0; 3898 3899 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3900 // y or y.0 (4 <= y <= current version). 3901 if (!VerParts.first.startswith("0") && 3902 !VerParts.first.getAsInteger(10, Major) && 3903 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3904 (Major == 3 ? VerParts.second.size() == 1 && 3905 !VerParts.second.getAsInteger(10, Minor) 3906 : VerParts.first.size() == Ver.size() || 3907 VerParts.second == "0")) { 3908 // Got a valid version number. 3909 if (Major == 3 && Minor <= 8) 3910 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3911 else if (Major <= 4) 3912 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3913 else if (Major <= 6) 3914 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3915 else if (Major <= 7) 3916 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3917 else if (Major <= 9) 3918 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3919 else if (Major <= 11) 3920 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 3921 } else if (Ver != "latest") { 3922 Diags.Report(diag::err_drv_invalid_value) 3923 << A->getAsString(Args) << A->getValue(); 3924 } 3925 } 3926 3927 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3928 StringRef SignScope = A->getValue(); 3929 3930 if (SignScope.equals_lower("none")) 3931 Opts.setSignReturnAddressScope( 3932 LangOptions::SignReturnAddressScopeKind::None); 3933 else if (SignScope.equals_lower("all")) 3934 Opts.setSignReturnAddressScope( 3935 LangOptions::SignReturnAddressScopeKind::All); 3936 else if (SignScope.equals_lower("non-leaf")) 3937 Opts.setSignReturnAddressScope( 3938 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3939 else 3940 Diags.Report(diag::err_drv_invalid_value) 3941 << A->getAsString(Args) << SignScope; 3942 3943 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3944 StringRef SignKey = A->getValue(); 3945 if (!SignScope.empty() && !SignKey.empty()) { 3946 if (SignKey.equals_lower("a_key")) 3947 Opts.setSignReturnAddressKey( 3948 LangOptions::SignReturnAddressKeyKind::AKey); 3949 else if (SignKey.equals_lower("b_key")) 3950 Opts.setSignReturnAddressKey( 3951 LangOptions::SignReturnAddressKeyKind::BKey); 3952 else 3953 Diags.Report(diag::err_drv_invalid_value) 3954 << A->getAsString(Args) << SignKey; 3955 } 3956 } 3957 } 3958 3959 return Success && Diags.getNumErrors() == NumErrorsBefore; 3960 } 3961 3962 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3963 switch (Action) { 3964 case frontend::ASTDeclList: 3965 case frontend::ASTDump: 3966 case frontend::ASTPrint: 3967 case frontend::ASTView: 3968 case frontend::EmitAssembly: 3969 case frontend::EmitBC: 3970 case frontend::EmitHTML: 3971 case frontend::EmitLLVM: 3972 case frontend::EmitLLVMOnly: 3973 case frontend::EmitCodeGenOnly: 3974 case frontend::EmitObj: 3975 case frontend::FixIt: 3976 case frontend::GenerateModule: 3977 case frontend::GenerateModuleInterface: 3978 case frontend::GenerateHeaderModule: 3979 case frontend::GeneratePCH: 3980 case frontend::GenerateInterfaceStubs: 3981 case frontend::ParseSyntaxOnly: 3982 case frontend::ModuleFileInfo: 3983 case frontend::VerifyPCH: 3984 case frontend::PluginAction: 3985 case frontend::RewriteObjC: 3986 case frontend::RewriteTest: 3987 case frontend::RunAnalysis: 3988 case frontend::TemplightDump: 3989 case frontend::MigrateSource: 3990 return false; 3991 3992 case frontend::DumpCompilerOptions: 3993 case frontend::DumpRawTokens: 3994 case frontend::DumpTokens: 3995 case frontend::InitOnly: 3996 case frontend::PrintPreamble: 3997 case frontend::PrintPreprocessedInput: 3998 case frontend::RewriteMacros: 3999 case frontend::RunPreprocessorOnly: 4000 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4001 return true; 4002 } 4003 llvm_unreachable("invalid frontend action"); 4004 } 4005 4006 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4007 SmallVectorImpl<const char *> &Args, 4008 CompilerInvocation::StringAllocator SA, 4009 const LangOptions &LangOpts, 4010 const FrontendOptions &FrontendOpts, 4011 const CodeGenOptions &CodeGenOpts) { 4012 PreprocessorOptions *PreprocessorOpts = &Opts; 4013 4014 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4015 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4016 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4017 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4018 MERGER, EXTRACTOR, TABLE_INDEX) \ 4019 GENERATE_OPTION_WITH_MARSHALLING( \ 4020 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4021 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4022 #include "clang/Driver/Options.inc" 4023 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4024 4025 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4026 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4027 4028 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4029 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4030 4031 for (const auto &MP : Opts.MacroPrefixMap) 4032 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 4033 4034 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4035 GenerateArg(Args, OPT_preamble_bytes_EQ, 4036 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4037 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4038 SA); 4039 4040 for (const auto &M : Opts.Macros) { 4041 // Don't generate __CET__ macro definitions. They are implied by the 4042 // -fcf-protection option that is generated elsewhere. 4043 if (M.first == "__CET__=1" && !M.second && 4044 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4045 continue; 4046 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4047 !CodeGenOpts.CFProtectionBranch) 4048 continue; 4049 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4050 CodeGenOpts.CFProtectionBranch) 4051 continue; 4052 4053 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4054 } 4055 4056 for (const auto &I : Opts.Includes) { 4057 // Don't generate OpenCL includes. They are implied by other flags that are 4058 // generated elsewhere. 4059 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4060 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4061 I == "opencl-c.h")) 4062 continue; 4063 4064 GenerateArg(Args, OPT_include, I, SA); 4065 } 4066 4067 for (const auto &CI : Opts.ChainedIncludes) 4068 GenerateArg(Args, OPT_chain_include, CI, SA); 4069 4070 for (const auto &RF : Opts.RemappedFiles) 4071 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4072 4073 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4074 // generated elsewhere. 4075 } 4076 4077 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4078 DiagnosticsEngine &Diags, 4079 frontend::ActionKind Action, 4080 const FrontendOptions &FrontendOpts) { 4081 PreprocessorOptions *PreprocessorOpts = &Opts; 4082 bool Success = true; 4083 4084 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4085 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4086 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4087 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4088 MERGER, EXTRACTOR, TABLE_INDEX) \ 4089 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4090 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4091 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4092 MERGER, TABLE_INDEX) 4093 #include "clang/Driver/Options.inc" 4094 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4095 4096 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4097 Args.hasArg(OPT_pch_through_hdrstop_use); 4098 4099 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4100 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4101 4102 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4103 auto Split = StringRef(A).split('='); 4104 Opts.MacroPrefixMap.insert( 4105 {std::string(Split.first), std::string(Split.second)}); 4106 } 4107 4108 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4109 StringRef Value(A->getValue()); 4110 size_t Comma = Value.find(','); 4111 unsigned Bytes = 0; 4112 unsigned EndOfLine = 0; 4113 4114 if (Comma == StringRef::npos || 4115 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4116 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4117 Diags.Report(diag::err_drv_preamble_format); 4118 else { 4119 Opts.PrecompiledPreambleBytes.first = Bytes; 4120 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4121 } 4122 } 4123 4124 // Add the __CET__ macro if a CFProtection option is set. 4125 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4126 StringRef Name = A->getValue(); 4127 if (Name == "branch") 4128 Opts.addMacroDef("__CET__=1"); 4129 else if (Name == "return") 4130 Opts.addMacroDef("__CET__=2"); 4131 else if (Name == "full") 4132 Opts.addMacroDef("__CET__=3"); 4133 } 4134 4135 // Add macros from the command line. 4136 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4137 if (A->getOption().matches(OPT_D)) 4138 Opts.addMacroDef(A->getValue()); 4139 else 4140 Opts.addMacroUndef(A->getValue()); 4141 } 4142 4143 // Add the ordered list of -includes. 4144 for (const auto *A : Args.filtered(OPT_include)) 4145 Opts.Includes.emplace_back(A->getValue()); 4146 4147 for (const auto *A : Args.filtered(OPT_chain_include)) 4148 Opts.ChainedIncludes.emplace_back(A->getValue()); 4149 4150 for (const auto *A : Args.filtered(OPT_remap_file)) { 4151 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4152 4153 if (Split.second.empty()) { 4154 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4155 continue; 4156 } 4157 4158 Opts.addRemappedFile(Split.first, Split.second); 4159 } 4160 4161 // Always avoid lexing editor placeholders when we're just running the 4162 // preprocessor as we never want to emit the 4163 // "editor placeholder in source file" error in PP only mode. 4164 if (isStrictlyPreprocessorAction(Action)) 4165 Opts.LexEditorPlaceholders = false; 4166 4167 return Success; 4168 } 4169 4170 static void GeneratePreprocessorOutputArgs( 4171 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4172 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4173 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4174 4175 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4176 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4177 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4178 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4179 MERGER, EXTRACTOR, TABLE_INDEX) \ 4180 GENERATE_OPTION_WITH_MARSHALLING( \ 4181 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4182 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4183 #include "clang/Driver/Options.inc" 4184 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4185 4186 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4187 if (Generate_dM) 4188 GenerateArg(Args, OPT_dM, SA); 4189 if (!Generate_dM && Opts.ShowMacros) 4190 GenerateArg(Args, OPT_dD, SA); 4191 } 4192 4193 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4194 ArgList &Args, DiagnosticsEngine &Diags, 4195 frontend::ActionKind Action) { 4196 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4197 unsigned NumErrorsBefore = Diags.getNumErrors(); 4198 bool Success = true; 4199 4200 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4201 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4202 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4203 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4204 MERGER, EXTRACTOR, TABLE_INDEX) \ 4205 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4206 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4207 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4208 MERGER, TABLE_INDEX) 4209 #include "clang/Driver/Options.inc" 4210 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4211 4212 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4213 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4214 4215 return Success && Diags.getNumErrors() == NumErrorsBefore; 4216 } 4217 4218 static void GenerateTargetArgs(const TargetOptions &Opts, 4219 SmallVectorImpl<const char *> &Args, 4220 CompilerInvocation::StringAllocator SA) { 4221 const TargetOptions *TargetOpts = &Opts; 4222 #define TARGET_OPTION_WITH_MARSHALLING( \ 4223 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4224 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4225 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4226 MERGER, EXTRACTOR, TABLE_INDEX) \ 4227 GENERATE_OPTION_WITH_MARSHALLING( \ 4228 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4229 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4230 #include "clang/Driver/Options.inc" 4231 #undef TARGET_OPTION_WITH_MARSHALLING 4232 4233 if (!Opts.SDKVersion.empty()) 4234 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4235 SA); 4236 } 4237 4238 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4239 DiagnosticsEngine &Diags) { 4240 TargetOptions *TargetOpts = &Opts; 4241 unsigned NumErrorsBefore = Diags.getNumErrors(); 4242 bool Success = true; 4243 4244 #define TARGET_OPTION_WITH_MARSHALLING( \ 4245 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4246 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4247 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4248 MERGER, EXTRACTOR, TABLE_INDEX) \ 4249 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4250 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4251 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4252 MERGER, TABLE_INDEX) 4253 #include "clang/Driver/Options.inc" 4254 #undef TARGET_OPTION_WITH_MARSHALLING 4255 4256 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4257 llvm::VersionTuple Version; 4258 if (Version.tryParse(A->getValue())) 4259 Diags.Report(diag::err_drv_invalid_value) 4260 << A->getAsString(Args) << A->getValue(); 4261 else 4262 Opts.SDKVersion = Version; 4263 } 4264 4265 return Success && Diags.getNumErrors() == NumErrorsBefore; 4266 } 4267 4268 bool CompilerInvocation::CreateFromArgsImpl( 4269 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4270 DiagnosticsEngine &Diags, const char *Argv0) { 4271 bool Success = true; 4272 4273 // Parse the arguments. 4274 const OptTable &Opts = getDriverOptTable(); 4275 const unsigned IncludedFlagsBitmask = options::CC1Option; 4276 unsigned MissingArgIndex, MissingArgCount; 4277 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4278 MissingArgCount, IncludedFlagsBitmask); 4279 LangOptions &LangOpts = *Res.getLangOpts(); 4280 4281 // Check for missing argument error. 4282 if (MissingArgCount) { 4283 Diags.Report(diag::err_drv_missing_argument) 4284 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4285 Success = false; 4286 } 4287 4288 // Issue errors on unknown arguments. 4289 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4290 auto ArgString = A->getAsString(Args); 4291 std::string Nearest; 4292 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4293 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4294 else 4295 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4296 << ArgString << Nearest; 4297 Success = false; 4298 } 4299 4300 Success &= ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4301 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4302 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4303 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4304 /*DefaultDiagColor=*/false); 4305 Success &= ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 4306 LangOpts.IsHeaderFile); 4307 // FIXME: We shouldn't have to pass the DashX option around here 4308 InputKind DashX = Res.getFrontendOpts().DashX; 4309 Success &= ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4310 llvm::Triple T(Res.getTargetOpts().Triple); 4311 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4312 Res.getFileSystemOpts().WorkingDir); 4313 if (DashX.getFormat() == InputKind::Precompiled || 4314 DashX.getLanguage() == Language::LLVM_IR) { 4315 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 4316 // PassManager in BackendUtil.cpp. They need to be initializd no matter 4317 // what the input type is. 4318 if (Args.hasArg(OPT_fobjc_arc)) 4319 LangOpts.ObjCAutoRefCount = 1; 4320 // PIClevel and PIELevel are needed during code generation and this should be 4321 // set regardless of the input type. 4322 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 4323 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 4324 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4325 Diags, LangOpts.Sanitize); 4326 } else { 4327 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 4328 // FIXME: Should we really be calling this for an Language::Asm input? 4329 Success &= ParseLangArgs(LangOpts, Args, DashX, T, 4330 Res.getPreprocessorOpts().Includes, Diags); 4331 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4332 LangOpts.ObjCExceptions = 1; 4333 } 4334 4335 if (LangOpts.CUDA) { 4336 // During CUDA device-side compilation, the aux triple is the 4337 // triple used for host compilation. 4338 if (LangOpts.CUDAIsDevice) 4339 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4340 } 4341 4342 // Set the triple of the host for OpenMP device compile. 4343 if (LangOpts.OpenMPIsDevice) 4344 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4345 4346 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4347 Res.getFrontendOpts().OutputFile, LangOpts); 4348 4349 // FIXME: Override value name discarding when asan or msan is used because the 4350 // backend passes depend on the name of the alloca in order to print out 4351 // names. 4352 Res.getCodeGenOpts().DiscardValueNames &= 4353 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4354 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4355 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4356 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4357 4358 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4359 Res.getFrontendOpts().ProgramAction, 4360 Res.getFrontendOpts()); 4361 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4362 Res.getFrontendOpts().ProgramAction); 4363 4364 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4365 Res.getFrontendOpts().ProgramAction, 4366 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4367 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4368 Res.getDependencyOutputOpts().Targets.empty()) { 4369 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4370 Success = false; 4371 } 4372 4373 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4374 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4375 !Res.getLangOpts()->Sanitize.empty()) { 4376 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4377 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4378 } 4379 4380 // Store the command-line for using in the CodeView backend. 4381 Res.getCodeGenOpts().Argv0 = Argv0; 4382 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 4383 4384 Success &= FixupInvocation(Res, Diags, Args, DashX); 4385 4386 return Success; 4387 } 4388 4389 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4390 ArrayRef<const char *> CommandLineArgs, 4391 DiagnosticsEngine &Diags, 4392 const char *Argv0) { 4393 CompilerInvocation DummyInvocation; 4394 4395 return RoundTrip( 4396 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4397 DiagnosticsEngine &Diags, const char *Argv0) { 4398 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4399 }, 4400 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4401 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4402 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4403 } 4404 4405 std::string CompilerInvocation::getModuleHash() const { 4406 // Note: For QoI reasons, the things we use as a hash here should all be 4407 // dumped via the -module-info flag. 4408 using llvm::hash_code; 4409 using llvm::hash_value; 4410 using llvm::hash_combine; 4411 using llvm::hash_combine_range; 4412 4413 // Start the signature with the compiler version. 4414 // FIXME: We'd rather use something more cryptographically sound than 4415 // CityHash, but this will do for now. 4416 hash_code code = hash_value(getClangFullRepositoryVersion()); 4417 4418 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4419 // and getClangFullRepositoryVersion() doesn't include git revision. 4420 code = hash_combine(code, serialization::VERSION_MAJOR, 4421 serialization::VERSION_MINOR); 4422 4423 // Extend the signature with the language options 4424 #define LANGOPT(Name, Bits, Default, Description) \ 4425 code = hash_combine(code, LangOpts->Name); 4426 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4427 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 4428 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4429 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4430 #include "clang/Basic/LangOptions.def" 4431 4432 for (StringRef Feature : LangOpts->ModuleFeatures) 4433 code = hash_combine(code, Feature); 4434 4435 code = hash_combine(code, LangOpts->ObjCRuntime); 4436 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 4437 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 4438 4439 // Extend the signature with the target options. 4440 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 4441 TargetOpts->TuneCPU, TargetOpts->ABI); 4442 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 4443 code = hash_combine(code, FeatureAsWritten); 4444 4445 // Extend the signature with preprocessor options. 4446 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4447 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4448 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 4449 4450 for (const auto &I : getPreprocessorOpts().Macros) { 4451 // If we're supposed to ignore this macro for the purposes of modules, 4452 // don't put it into the hash. 4453 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4454 // Check whether we're ignoring this macro. 4455 StringRef MacroDef = I.first; 4456 if (hsOpts.ModulesIgnoreMacros.count( 4457 llvm::CachedHashString(MacroDef.split('=').first))) 4458 continue; 4459 } 4460 4461 code = hash_combine(code, I.first, I.second); 4462 } 4463 4464 // Extend the signature with the sysroot and other header search options. 4465 code = hash_combine(code, hsOpts.Sysroot, 4466 hsOpts.ModuleFormat, 4467 hsOpts.UseDebugInfo, 4468 hsOpts.UseBuiltinIncludes, 4469 hsOpts.UseStandardSystemIncludes, 4470 hsOpts.UseStandardCXXIncludes, 4471 hsOpts.UseLibcxx, 4472 hsOpts.ModulesValidateDiagnosticOptions); 4473 code = hash_combine(code, hsOpts.ResourceDir); 4474 4475 if (hsOpts.ModulesStrictContextHash) { 4476 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 4477 hsOpts.SystemHeaderPrefixes.end()); 4478 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 4479 hsOpts.UserEntries.end()); 4480 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 4481 hsOpts.UserEntries.size(), UEC); 4482 4483 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4484 #define DIAGOPT(Name, Bits, Default) \ 4485 code = hash_combine(code, diagOpts.Name); 4486 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4487 code = hash_combine(code, diagOpts.get##Name()); 4488 #include "clang/Basic/DiagnosticOptions.def" 4489 #undef DIAGOPT 4490 #undef ENUM_DIAGOPT 4491 } 4492 4493 // Extend the signature with the user build path. 4494 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 4495 4496 // Extend the signature with the module file extensions. 4497 const FrontendOptions &frontendOpts = getFrontendOpts(); 4498 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 4499 code = ext->hashExtension(code); 4500 } 4501 4502 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4503 // affects the debug info in the PCM. 4504 if (getCodeGenOpts().DebugTypeExtRefs) 4505 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 4506 code = hash_combine(code, KeyValue.first, KeyValue.second); 4507 4508 // Extend the signature with the enabled sanitizers, if at least one is 4509 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4510 SanitizerSet SanHash = LangOpts->Sanitize; 4511 SanHash.clear(getPPTransparentSanitizers()); 4512 if (!SanHash.empty()) 4513 code = hash_combine(code, SanHash.Mask); 4514 4515 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 4516 } 4517 4518 void CompilerInvocation::generateCC1CommandLine( 4519 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4520 llvm::Triple T(TargetOpts->Triple); 4521 4522 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4523 GenerateMigratorArgs(MigratorOpts, Args, SA); 4524 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4525 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4526 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4527 GenerateTargetArgs(*TargetOpts, Args, SA); 4528 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4529 4530 InputKind DashX = FrontendOpts.DashX; 4531 if (DashX.getFormat() == InputKind::Precompiled || 4532 DashX.getLanguage() == Language::LLVM_IR) { 4533 if (LangOpts->ObjCAutoRefCount) 4534 GenerateArg(Args, OPT_fobjc_arc, SA); 4535 if (LangOpts->PICLevel != 0) 4536 GenerateArg(Args, OPT_pic_level, Twine(LangOpts->PICLevel), SA); 4537 if (LangOpts->PIE) 4538 GenerateArg(Args, OPT_pic_is_pie, SA); 4539 for (StringRef Sanitizer : serializeSanitizerKinds(LangOpts->Sanitize)) 4540 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 4541 } else { 4542 // FIXME: Move this whole condition into GenerateLangArgs. (And do the same 4543 // for ParseLangArgs). 4544 GenerateLangArgs(*LangOpts, Args, SA, T); 4545 } 4546 4547 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4548 &*LangOpts); 4549 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4550 CodeGenOpts); 4551 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4552 FrontendOpts.ProgramAction); 4553 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4554 } 4555 4556 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4557 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4558 DiagnosticsEngine &Diags) { 4559 return createVFSFromCompilerInvocation(CI, Diags, 4560 llvm::vfs::getRealFileSystem()); 4561 } 4562 4563 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4564 clang::createVFSFromCompilerInvocation( 4565 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4566 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4567 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4568 return BaseFS; 4569 4570 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4571 // earlier vfs files are on the bottom 4572 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4573 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4574 Result->getBufferForFile(File); 4575 if (!Buffer) { 4576 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4577 continue; 4578 } 4579 4580 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4581 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4582 /*DiagContext*/ nullptr, Result); 4583 if (!FS) { 4584 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4585 continue; 4586 } 4587 4588 Result = FS; 4589 } 4590 return Result; 4591 } 4592