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