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 case Option::JoinedAndSeparateClass: 215 Args.push_back(Spelling); 216 Args.push_back(SA(Value)); 217 break; 218 case Option::JoinedClass: 219 case Option::CommaJoinedClass: 220 Args.push_back(SA(Twine(Spelling) + Value)); 221 break; 222 default: 223 llvm_unreachable("Cannot denormalize an option with option class " 224 "incompatible with string denormalization."); 225 } 226 } 227 228 template <typename T> 229 static void 230 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 231 CompilerInvocation::StringAllocator SA, 232 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 233 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 234 } 235 236 static Optional<SimpleEnumValue> 237 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 238 for (int I = 0, E = Table.Size; I != E; ++I) 239 if (Name == Table.Table[I].Name) 240 return Table.Table[I]; 241 242 return None; 243 } 244 245 static Optional<SimpleEnumValue> 246 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 247 for (int I = 0, E = Table.Size; I != E; ++I) 248 if (Value == Table.Table[I].Value) 249 return Table.Table[I]; 250 251 return None; 252 } 253 254 static llvm::Optional<unsigned> 255 normalizeSimpleEnum(OptSpecifier Opt, unsigned TableIndex, const ArgList &Args, 256 DiagnosticsEngine &Diags, bool &Success) { 257 assert(TableIndex < SimpleEnumValueTablesSize); 258 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 259 260 auto *Arg = Args.getLastArg(Opt); 261 if (!Arg) 262 return None; 263 264 StringRef ArgValue = Arg->getValue(); 265 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 266 return MaybeEnumVal->Value; 267 268 Success = false; 269 Diags.Report(diag::err_drv_invalid_value) 270 << Arg->getAsString(Args) << ArgValue; 271 return None; 272 } 273 274 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 275 const char *Spelling, 276 CompilerInvocation::StringAllocator SA, 277 Option::OptionClass OptClass, 278 unsigned TableIndex, unsigned Value) { 279 assert(TableIndex < SimpleEnumValueTablesSize); 280 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 281 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 282 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 283 MaybeEnumVal->Name); 284 } else { 285 llvm_unreachable("The simple enum value was not correctly defined in " 286 "the tablegen option description"); 287 } 288 } 289 290 template <typename T> 291 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 292 const char *Spelling, 293 CompilerInvocation::StringAllocator SA, 294 Option::OptionClass OptClass, 295 unsigned TableIndex, T Value) { 296 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 297 static_cast<unsigned>(Value)); 298 } 299 300 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 301 const ArgList &Args, 302 DiagnosticsEngine &Diags, 303 bool &Success) { 304 auto *Arg = Args.getLastArg(Opt); 305 if (!Arg) 306 return None; 307 return std::string(Arg->getValue()); 308 } 309 310 template <typename IntTy> 311 static Optional<IntTy> 312 normalizeStringIntegral(OptSpecifier Opt, int, const ArgList &Args, 313 DiagnosticsEngine &Diags, bool &Success) { 314 auto *Arg = Args.getLastArg(Opt); 315 if (!Arg) 316 return None; 317 IntTy Res; 318 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 319 Success = false; 320 Diags.Report(diag::err_drv_invalid_int_value) 321 << Arg->getAsString(Args) << Arg->getValue(); 322 return None; 323 } 324 return Res; 325 } 326 327 static Optional<std::vector<std::string>> 328 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 329 DiagnosticsEngine &, bool &Success) { 330 return Args.getAllArgValues(Opt); 331 } 332 333 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 334 const char *Spelling, 335 CompilerInvocation::StringAllocator SA, 336 Option::OptionClass OptClass, 337 unsigned TableIndex, 338 const std::vector<std::string> &Values) { 339 switch (OptClass) { 340 case Option::CommaJoinedClass: { 341 std::string CommaJoinedValue; 342 if (!Values.empty()) { 343 CommaJoinedValue.append(Values.front()); 344 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 345 CommaJoinedValue.append(","); 346 CommaJoinedValue.append(Value); 347 } 348 } 349 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 350 TableIndex, CommaJoinedValue); 351 break; 352 } 353 case Option::JoinedClass: 354 case Option::SeparateClass: 355 case Option::JoinedOrSeparateClass: 356 for (const std::string &Value : Values) 357 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 358 break; 359 default: 360 llvm_unreachable("Cannot denormalize an option with option class " 361 "incompatible with string vector denormalization."); 362 } 363 } 364 365 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 366 const ArgList &Args, 367 DiagnosticsEngine &Diags, 368 bool &Success) { 369 auto *Arg = Args.getLastArg(Opt); 370 if (!Arg) 371 return None; 372 return llvm::Triple::normalize(Arg->getValue()); 373 } 374 375 template <typename T, typename U> 376 static T mergeForwardValue(T KeyPath, U Value) { 377 return static_cast<T>(Value); 378 } 379 380 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 381 return KeyPath | Value; 382 } 383 384 template <typename T> static T extractForwardValue(T KeyPath) { 385 return KeyPath; 386 } 387 388 template <typename T, typename U, U Value> 389 static T extractMaskValue(T KeyPath) { 390 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 391 } 392 393 #define PARSE_OPTION_WITH_MARSHALLING(ARGS, DIAGS, SUCCESS, ID, FLAGS, PARAM, \ 394 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 395 IMPLIED_CHECK, IMPLIED_VALUE, \ 396 NORMALIZER, MERGER, TABLE_INDEX) \ 397 if ((FLAGS)&options::CC1Option) { \ 398 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 399 if (IMPLIED_CHECK) \ 400 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 401 if (SHOULD_PARSE) \ 402 if (auto MaybeValue = \ 403 NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS, SUCCESS)) \ 404 KEYPATH = \ 405 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 406 } 407 408 // Capture the extracted value as a lambda argument to avoid potential issues 409 // with lifetime extension of the reference. 410 #define GENERATE_OPTION_WITH_MARSHALLING( \ 411 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 412 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 413 TABLE_INDEX) \ 414 if ((FLAGS)&options::CC1Option) { \ 415 [&](const auto &Extracted) { \ 416 if (ALWAYS_EMIT || \ 417 (Extracted != \ 418 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 419 : (DEFAULT_VALUE)))) \ 420 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 421 TABLE_INDEX, Extracted); \ 422 }(EXTRACTOR(KEYPATH)); \ 423 } 424 425 static const StringRef GetInputKindName(InputKind IK); 426 427 static bool FixupInvocation(CompilerInvocation &Invocation, 428 DiagnosticsEngine &Diags, const ArgList &Args, 429 InputKind IK) { 430 unsigned NumErrorsBefore = Diags.getNumErrors(); 431 432 LangOptions &LangOpts = *Invocation.getLangOpts(); 433 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 434 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 435 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 436 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 437 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 438 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 439 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 440 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 441 442 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 443 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 444 LangOpts.CurrentModule = LangOpts.ModuleName; 445 446 llvm::Triple T(TargetOpts.Triple); 447 llvm::Triple::ArchType Arch = T.getArch(); 448 449 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 450 451 if (LangOpts.getExceptionHandling() != llvm::ExceptionHandling::None && 452 T.isWindowsMSVCEnvironment()) 453 Diags.Report(diag::err_fe_invalid_exception_model) 454 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 455 456 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 457 Diags.Report(diag::warn_c_kext); 458 459 if (Args.hasArg(OPT_fconcepts_ts)) 460 Diags.Report(diag::warn_fe_concepts_ts_flag); 461 462 if (LangOpts.NewAlignOverride && 463 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 464 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 465 Diags.Report(diag::err_fe_invalid_alignment) 466 << A->getAsString(Args) << A->getValue(); 467 LangOpts.NewAlignOverride = 0; 468 } 469 470 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 471 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 472 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 473 << "-fsycl-is-host"; 474 475 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 476 Diags.Report(diag::err_drv_argument_not_allowed_with) 477 << "-fgnu89-inline" << GetInputKindName(IK); 478 479 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 480 Diags.Report(diag::warn_ignored_hip_only_option) 481 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 482 483 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 484 Diags.Report(diag::warn_ignored_hip_only_option) 485 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 486 487 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 488 // This option should be deprecated for CL > 1.0 because 489 // this option was added for compatibility with OpenCL 1.0. 490 if (Args.getLastArg(OPT_cl_strict_aliasing) && LangOpts.OpenCLVersion > 100) 491 Diags.Report(diag::warn_option_invalid_ocl_version) 492 << LangOpts.getOpenCLVersionTuple().getAsString() 493 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 494 495 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 496 auto DefaultCC = LangOpts.getDefaultCallingConv(); 497 498 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 499 DefaultCC == LangOptions::DCC_StdCall) && 500 Arch != llvm::Triple::x86; 501 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 502 DefaultCC == LangOptions::DCC_RegCall) && 503 !T.isX86(); 504 if (emitError) 505 Diags.Report(diag::err_drv_argument_not_allowed_with) 506 << A->getSpelling() << T.getTriple(); 507 } 508 509 if (!CodeGenOpts.ProfileRemappingFile.empty() && CodeGenOpts.LegacyPassManager) 510 Diags.Report(diag::err_drv_argument_only_allowed_with) 511 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 512 << "-fno-legacy-pass-manager"; 513 514 return Diags.getNumErrors() == NumErrorsBefore; 515 } 516 517 //===----------------------------------------------------------------------===// 518 // Deserialization (from args) 519 //===----------------------------------------------------------------------===// 520 521 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 522 DiagnosticsEngine &Diags) { 523 unsigned DefaultOpt = llvm::CodeGenOpt::None; 524 if ((IK.getLanguage() == Language::OpenCL || 525 IK.getLanguage() == Language::OpenCLCXX) && 526 !Args.hasArg(OPT_cl_opt_disable)) 527 DefaultOpt = llvm::CodeGenOpt::Default; 528 529 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 530 if (A->getOption().matches(options::OPT_O0)) 531 return llvm::CodeGenOpt::None; 532 533 if (A->getOption().matches(options::OPT_Ofast)) 534 return llvm::CodeGenOpt::Aggressive; 535 536 assert(A->getOption().matches(options::OPT_O)); 537 538 StringRef S(A->getValue()); 539 if (S == "s" || S == "z") 540 return llvm::CodeGenOpt::Default; 541 542 if (S == "g") 543 return llvm::CodeGenOpt::Less; 544 545 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 546 } 547 548 return DefaultOpt; 549 } 550 551 static unsigned getOptimizationLevelSize(ArgList &Args) { 552 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 553 if (A->getOption().matches(options::OPT_O)) { 554 switch (A->getValue()[0]) { 555 default: 556 return 0; 557 case 's': 558 return 1; 559 case 'z': 560 return 2; 561 } 562 } 563 } 564 return 0; 565 } 566 567 static void GenerateArg(SmallVectorImpl<const char *> &Args, 568 llvm::opt::OptSpecifier OptSpecifier, 569 CompilerInvocation::StringAllocator SA) { 570 Option Opt = getDriverOptTable().getOption(OptSpecifier); 571 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 572 Option::OptionClass::FlagClass, 0); 573 } 574 575 static void GenerateArg(SmallVectorImpl<const char *> &Args, 576 llvm::opt::OptSpecifier OptSpecifier, 577 const Twine &Value, 578 CompilerInvocation::StringAllocator SA) { 579 Option Opt = getDriverOptTable().getOption(OptSpecifier); 580 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 581 Opt.getKind(), 0, Value); 582 } 583 584 // Parse command line arguments into CompilerInvocation. 585 using ParseFn = 586 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 587 DiagnosticsEngine &, const char *)>; 588 589 // Generate command line arguments from CompilerInvocation. 590 using GenerateFn = llvm::function_ref<void( 591 CompilerInvocation &, SmallVectorImpl<const char *> &, 592 CompilerInvocation::StringAllocator)>; 593 594 // May perform round-trip of command line arguments. By default, the round-trip 595 // is enabled if CLANG_ROUND_TRIP_CC1_ARGS was defined during build. This can be 596 // overwritten at run-time via the "-round-trip-args" and "-no-round-trip-args" 597 // command line flags. 598 // During round-trip, the command line arguments are parsed into a dummy 599 // instance of CompilerInvocation which is used to generate the command line 600 // arguments again. The real CompilerInvocation instance is then created by 601 // parsing the generated arguments, not the original ones. 602 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 603 CompilerInvocation &RealInvocation, 604 CompilerInvocation &DummyInvocation, 605 ArrayRef<const char *> CommandLineArgs, 606 DiagnosticsEngine &Diags, const char *Argv0) { 607 // FIXME: Switch to '#ifndef NDEBUG' when possible. 608 #ifdef CLANG_ROUND_TRIP_CC1_ARGS 609 bool DoRoundTripDefault = true; 610 #else 611 bool DoRoundTripDefault = false; 612 #endif 613 614 bool DoRoundTrip = DoRoundTripDefault; 615 for (const auto *Arg : CommandLineArgs) { 616 if (Arg == StringRef("-round-trip-args")) 617 DoRoundTrip = true; 618 if (Arg == StringRef("-no-round-trip-args")) 619 DoRoundTrip = false; 620 } 621 622 // If round-trip was not requested, simply run the parser with the real 623 // invocation diagnostics. 624 if (!DoRoundTrip) 625 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 626 627 // Serializes quoted (and potentially escaped) arguments. 628 auto SerializeArgs = [](ArrayRef<const char *> Args) { 629 std::string Buffer; 630 llvm::raw_string_ostream OS(Buffer); 631 for (const char *Arg : Args) { 632 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 633 OS << ' '; 634 } 635 OS.flush(); 636 return Buffer; 637 }; 638 639 // Setup a dummy DiagnosticsEngine. 640 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 641 DummyDiags.setClient(new TextDiagnosticBuffer()); 642 643 // Run the first parse on the original arguments with the dummy invocation and 644 // diagnostics. 645 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 646 DummyDiags.getNumWarnings() != 0) { 647 // If the first parse did not succeed, it must be user mistake (invalid 648 // command line arguments). We won't be able to generate arguments that 649 // would reproduce the same result. Let's fail again with the real 650 // invocation and diagnostics, so all side-effects of parsing are visible. 651 unsigned NumWarningsBefore = Diags.getNumWarnings(); 652 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 653 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 654 return Success; 655 656 // Parse with original options and diagnostics succeeded even though it 657 // shouldn't have. Something is off. 658 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 659 Diags.Report(diag::note_cc1_round_trip_original) 660 << SerializeArgs(CommandLineArgs); 661 return false; 662 } 663 664 // Setup string allocator. 665 llvm::BumpPtrAllocator Alloc; 666 llvm::StringSaver StringPool(Alloc); 667 auto SA = [&StringPool](const Twine &Arg) { 668 return StringPool.save(Arg).data(); 669 }; 670 671 // Generate arguments from the dummy invocation. If Generate is the 672 // inverse of Parse, the newly generated arguments must have the same 673 // semantics as the original. 674 SmallVector<const char *> GeneratedArgs1; 675 Generate(DummyInvocation, GeneratedArgs1, SA); 676 677 // Run the second parse, now on the generated arguments, and with the real 678 // invocation and diagnostics. The result is what we will end up using for the 679 // rest of compilation, so if Generate is not inverse of Parse, something down 680 // the line will break. 681 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 682 683 // The first parse on original arguments succeeded, but second parse of 684 // generated arguments failed. Something must be wrong with the generator. 685 if (!Success2) { 686 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 687 Diags.Report(diag::note_cc1_round_trip_generated) 688 << 1 << SerializeArgs(GeneratedArgs1); 689 return false; 690 } 691 692 // Generate arguments again, this time from the options we will end up using 693 // for the rest of the compilation. 694 SmallVector<const char *> GeneratedArgs2; 695 Generate(RealInvocation, GeneratedArgs2, SA); 696 697 // Compares two lists of generated arguments. 698 auto Equal = [](const ArrayRef<const char *> A, 699 const ArrayRef<const char *> B) { 700 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 701 [](const char *AElem, const char *BElem) { 702 return StringRef(AElem) == StringRef(BElem); 703 }); 704 }; 705 706 // If we generated different arguments from what we assume are two 707 // semantically equivalent CompilerInvocations, the Generate function may 708 // be non-deterministic. 709 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 710 Diags.Report(diag::err_cc1_round_trip_mismatch); 711 Diags.Report(diag::note_cc1_round_trip_generated) 712 << 1 << SerializeArgs(GeneratedArgs1); 713 Diags.Report(diag::note_cc1_round_trip_generated) 714 << 2 << SerializeArgs(GeneratedArgs2); 715 return false; 716 } 717 718 Diags.Report(diag::remark_cc1_round_trip_generated) 719 << 1 << SerializeArgs(GeneratedArgs1); 720 Diags.Report(diag::remark_cc1_round_trip_generated) 721 << 2 << SerializeArgs(GeneratedArgs2); 722 723 return Success2; 724 } 725 726 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 727 OptSpecifier GroupWithValue, 728 std::vector<std::string> &Diagnostics) { 729 for (auto *A : Args.filtered(Group)) { 730 if (A->getOption().getKind() == Option::FlagClass) { 731 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 732 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 733 Diagnostics.push_back( 734 std::string(A->getOption().getName().drop_front(1))); 735 } else if (A->getOption().matches(GroupWithValue)) { 736 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 737 // group. Add only the group name to the diagnostics. 738 Diagnostics.push_back( 739 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 740 } else { 741 // Otherwise, add its value (for OPT_W_Joined and similar). 742 Diagnostics.push_back(A->getValue()); 743 } 744 } 745 } 746 747 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 748 // it won't verify the input. 749 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 750 DiagnosticsEngine *Diags); 751 752 static void getAllNoBuiltinFuncValues(ArgList &Args, 753 std::vector<std::string> &Funcs) { 754 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 755 auto BuiltinEnd = llvm::partition(Values, [](const std::string FuncName) { 756 return Builtin::Context::isBuiltinFunc(FuncName); 757 }); 758 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 759 } 760 761 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 762 SmallVectorImpl<const char *> &Args, 763 CompilerInvocation::StringAllocator SA) { 764 const AnalyzerOptions *AnalyzerOpts = &Opts; 765 766 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 767 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 768 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 769 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 770 MERGER, EXTRACTOR, TABLE_INDEX) \ 771 GENERATE_OPTION_WITH_MARSHALLING( \ 772 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 773 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 774 #include "clang/Driver/Options.inc" 775 #undef ANALYZER_OPTION_WITH_MARSHALLING 776 777 if (Opts.AnalysisStoreOpt != RegionStoreModel) { 778 switch (Opts.AnalysisStoreOpt) { 779 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 780 case NAME##Model: \ 781 GenerateArg(Args, OPT_analyzer_store, CMDFLAG, SA); \ 782 break; 783 #include "clang/StaticAnalyzer/Core/Analyses.def" 784 default: 785 llvm_unreachable("Tried to generate unknown analysis store."); 786 } 787 } 788 789 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 790 switch (Opts.AnalysisConstraintsOpt) { 791 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 792 case NAME##Model: \ 793 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 794 break; 795 #include "clang/StaticAnalyzer/Core/Analyses.def" 796 default: 797 llvm_unreachable("Tried to generate unknown analysis constraint."); 798 } 799 } 800 801 if (Opts.AnalysisDiagOpt != PD_HTML) { 802 switch (Opts.AnalysisDiagOpt) { 803 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 804 case PD_##NAME: \ 805 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 806 break; 807 #include "clang/StaticAnalyzer/Core/Analyses.def" 808 default: 809 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 810 } 811 } 812 813 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 814 switch (Opts.AnalysisPurgeOpt) { 815 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 816 case NAME: \ 817 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 818 break; 819 #include "clang/StaticAnalyzer/Core/Analyses.def" 820 default: 821 llvm_unreachable("Tried to generate unknown analysis purge mode."); 822 } 823 } 824 825 if (Opts.InliningMode != NoRedundancy) { 826 switch (Opts.InliningMode) { 827 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 828 case NAME: \ 829 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 830 break; 831 #include "clang/StaticAnalyzer/Core/Analyses.def" 832 default: 833 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 834 } 835 } 836 837 for (const auto &CP : Opts.CheckersAndPackages) { 838 OptSpecifier Opt = 839 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 840 GenerateArg(Args, Opt, CP.first, SA); 841 } 842 843 AnalyzerOptions ConfigOpts; 844 parseAnalyzerConfigs(ConfigOpts, nullptr); 845 846 for (const auto &C : Opts.Config) { 847 // Don't generate anything that came from parseAnalyzerConfigs. It would be 848 // redundant and may not be valid on the command line. 849 auto Entry = ConfigOpts.Config.find(C.getKey()); 850 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 851 continue; 852 853 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 854 } 855 856 // Nothing to generate for FullCompilerInvocation. 857 } 858 859 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 860 DiagnosticsEngine &Diags) { 861 AnalyzerOptions *AnalyzerOpts = &Opts; 862 bool Success = true; 863 864 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 865 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 866 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 867 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 868 MERGER, EXTRACTOR, TABLE_INDEX) \ 869 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 870 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 871 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 872 MERGER, TABLE_INDEX) 873 #include "clang/Driver/Options.inc" 874 #undef ANALYZER_OPTION_WITH_MARSHALLING 875 876 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 877 StringRef Name = A->getValue(); 878 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 879 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 880 .Case(CMDFLAG, NAME##Model) 881 #include "clang/StaticAnalyzer/Core/Analyses.def" 882 .Default(NumStores); 883 if (Value == NumStores) { 884 Diags.Report(diag::err_drv_invalid_value) 885 << A->getAsString(Args) << Name; 886 Success = false; 887 } else { 888 Opts.AnalysisStoreOpt = Value; 889 } 890 } 891 892 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 893 StringRef Name = A->getValue(); 894 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 895 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 896 .Case(CMDFLAG, NAME##Model) 897 #include "clang/StaticAnalyzer/Core/Analyses.def" 898 .Default(NumConstraints); 899 if (Value == NumConstraints) { 900 Diags.Report(diag::err_drv_invalid_value) 901 << A->getAsString(Args) << Name; 902 Success = false; 903 } else { 904 Opts.AnalysisConstraintsOpt = Value; 905 } 906 } 907 908 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 909 StringRef Name = A->getValue(); 910 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 911 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 912 .Case(CMDFLAG, PD_##NAME) 913 #include "clang/StaticAnalyzer/Core/Analyses.def" 914 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 915 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 916 Diags.Report(diag::err_drv_invalid_value) 917 << A->getAsString(Args) << Name; 918 Success = false; 919 } else { 920 Opts.AnalysisDiagOpt = Value; 921 } 922 } 923 924 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 925 StringRef Name = A->getValue(); 926 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 927 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 928 .Case(CMDFLAG, NAME) 929 #include "clang/StaticAnalyzer/Core/Analyses.def" 930 .Default(NumPurgeModes); 931 if (Value == NumPurgeModes) { 932 Diags.Report(diag::err_drv_invalid_value) 933 << A->getAsString(Args) << Name; 934 Success = false; 935 } else { 936 Opts.AnalysisPurgeOpt = Value; 937 } 938 } 939 940 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 941 StringRef Name = A->getValue(); 942 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 943 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 944 .Case(CMDFLAG, NAME) 945 #include "clang/StaticAnalyzer/Core/Analyses.def" 946 .Default(NumInliningModes); 947 if (Value == NumInliningModes) { 948 Diags.Report(diag::err_drv_invalid_value) 949 << A->getAsString(Args) << Name; 950 Success = false; 951 } else { 952 Opts.InliningMode = Value; 953 } 954 } 955 956 Opts.CheckersAndPackages.clear(); 957 for (const Arg *A : 958 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 959 A->claim(); 960 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 961 // We can have a list of comma separated checker names, e.g: 962 // '-analyzer-checker=cocoa,unix' 963 StringRef CheckerAndPackageList = A->getValue(); 964 SmallVector<StringRef, 16> CheckersAndPackages; 965 CheckerAndPackageList.split(CheckersAndPackages, ","); 966 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 967 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 968 IsEnabled); 969 } 970 971 // Go through the analyzer configuration options. 972 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 973 974 // We can have a list of comma separated config names, e.g: 975 // '-analyzer-config key1=val1,key2=val2' 976 StringRef configList = A->getValue(); 977 SmallVector<StringRef, 4> configVals; 978 configList.split(configVals, ","); 979 for (const auto &configVal : configVals) { 980 StringRef key, val; 981 std::tie(key, val) = configVal.split("="); 982 if (val.empty()) { 983 Diags.Report(SourceLocation(), 984 diag::err_analyzer_config_no_value) << configVal; 985 Success = false; 986 break; 987 } 988 if (val.find('=') != StringRef::npos) { 989 Diags.Report(SourceLocation(), 990 diag::err_analyzer_config_multiple_values) 991 << configVal; 992 Success = false; 993 break; 994 } 995 996 // TODO: Check checker options too, possibly in CheckerRegistry. 997 // Leave unknown non-checker configs unclaimed. 998 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 999 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) { 1000 Diags.Report(diag::err_analyzer_config_unknown) << key; 1001 Success = false; 1002 } 1003 continue; 1004 } 1005 1006 A->claim(); 1007 Opts.Config[key] = std::string(val); 1008 } 1009 } 1010 1011 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1012 parseAnalyzerConfigs(Opts, &Diags); 1013 else 1014 parseAnalyzerConfigs(Opts, nullptr); 1015 1016 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1017 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1018 if (i != 0) 1019 os << " "; 1020 os << Args.getArgString(i); 1021 } 1022 os.flush(); 1023 1024 return Success; 1025 } 1026 1027 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1028 StringRef OptionName, StringRef DefaultVal) { 1029 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1030 } 1031 1032 static void initOption(AnalyzerOptions::ConfigTable &Config, 1033 DiagnosticsEngine *Diags, 1034 StringRef &OptionField, StringRef Name, 1035 StringRef DefaultVal) { 1036 // String options may be known to invalid (e.g. if the expected string is a 1037 // file name, but the file does not exist), those will have to be checked in 1038 // parseConfigs. 1039 OptionField = getStringOption(Config, Name, DefaultVal); 1040 } 1041 1042 static void initOption(AnalyzerOptions::ConfigTable &Config, 1043 DiagnosticsEngine *Diags, 1044 bool &OptionField, StringRef Name, bool DefaultVal) { 1045 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1046 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1047 .Case("true", true) 1048 .Case("false", false) 1049 .Default(None); 1050 1051 if (!PossiblyInvalidVal) { 1052 if (Diags) 1053 Diags->Report(diag::err_analyzer_config_invalid_input) 1054 << Name << "a boolean"; 1055 else 1056 OptionField = DefaultVal; 1057 } else 1058 OptionField = PossiblyInvalidVal.getValue(); 1059 } 1060 1061 static void initOption(AnalyzerOptions::ConfigTable &Config, 1062 DiagnosticsEngine *Diags, 1063 unsigned &OptionField, StringRef Name, 1064 unsigned DefaultVal) { 1065 1066 OptionField = DefaultVal; 1067 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1068 .getAsInteger(0, OptionField); 1069 if (Diags && HasFailed) 1070 Diags->Report(diag::err_analyzer_config_invalid_input) 1071 << Name << "an unsigned"; 1072 } 1073 1074 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1075 DiagnosticsEngine *Diags) { 1076 // TODO: There's no need to store the entire configtable, it'd be plenty 1077 // enough tostore checker options. 1078 1079 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1080 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1081 1082 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1083 SHALLOW_VAL, DEEP_VAL) \ 1084 switch (AnOpts.getUserMode()) { \ 1085 case UMK_Shallow: \ 1086 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 1087 break; \ 1088 case UMK_Deep: \ 1089 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 1090 break; \ 1091 } \ 1092 1093 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1094 #undef ANALYZER_OPTION 1095 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 1096 1097 // At this point, AnalyzerOptions is configured. Let's validate some options. 1098 1099 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1100 // The current approach only validates the registered checkers which does not 1101 // contain the runtime enabled checkers and optimally we would validate both. 1102 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1103 std::vector<StringRef> Checkers = 1104 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1105 std::vector<StringRef> Packages = 1106 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1107 1108 SmallVector<StringRef, 16> CheckersAndPackages; 1109 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1110 1111 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1112 if (Diags) { 1113 bool IsChecker = CheckerOrPackage.contains('.'); 1114 bool IsValidName = 1115 IsChecker 1116 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 1117 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 1118 1119 if (!IsValidName) 1120 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1121 << CheckerOrPackage; 1122 } 1123 1124 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1125 } 1126 } 1127 1128 if (!Diags) 1129 return; 1130 1131 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1132 Diags->Report(diag::err_analyzer_config_invalid_input) 1133 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1134 1135 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1136 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1137 << "a filename"; 1138 1139 if (!AnOpts.ModelPath.empty() && 1140 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1141 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1142 << "a filename"; 1143 } 1144 1145 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1146 static void 1147 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1148 CompilerInvocation::StringAllocator SA, 1149 OptSpecifier OptEQ, StringRef Name, 1150 const CodeGenOptions::OptRemark &Remark) { 1151 if (Remark.hasValidPattern()) { 1152 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1153 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1154 GenerateArg(Args, OPT_R_Joined, Name, SA); 1155 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1156 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1157 } 1158 } 1159 1160 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1161 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1162 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1163 static CodeGenOptions::OptRemark 1164 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1165 OptSpecifier OptEQ, StringRef Name) { 1166 CodeGenOptions::OptRemark Result; 1167 1168 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A) { 1169 Result.Pattern = A->getValue(); 1170 1171 std::string RegexError; 1172 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1173 if (!Result.Regex->isValid(RegexError)) { 1174 Diags.Report(diag::err_drv_optimization_remark_pattern) 1175 << RegexError << A->getAsString(Args); 1176 return false; 1177 } 1178 1179 return true; 1180 }; 1181 1182 for (Arg *A : Args) { 1183 if (A->getOption().matches(OPT_R_Joined)) { 1184 StringRef Value = A->getValue(); 1185 1186 if (Value == Name) 1187 Result.Kind = CodeGenOptions::RK_Enabled; 1188 else if (Value == "everything") 1189 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1190 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1191 Result.Kind = CodeGenOptions::RK_Disabled; 1192 else if (Value == "no-everything") 1193 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1194 } else if (A->getOption().matches(OptEQ)) { 1195 Result.Kind = CodeGenOptions::RK_WithPattern; 1196 if (!InitializeResultPattern(A)) 1197 return CodeGenOptions::OptRemark(); 1198 } 1199 } 1200 1201 if (Result.Kind == CodeGenOptions::RK_Disabled || 1202 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1203 Result.Pattern = ""; 1204 Result.Regex = nullptr; 1205 } 1206 1207 return Result; 1208 } 1209 1210 static bool parseDiagnosticLevelMask(StringRef FlagName, 1211 const std::vector<std::string> &Levels, 1212 DiagnosticsEngine &Diags, 1213 DiagnosticLevelMask &M) { 1214 bool Success = true; 1215 for (const auto &Level : Levels) { 1216 DiagnosticLevelMask const PM = 1217 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1218 .Case("note", DiagnosticLevelMask::Note) 1219 .Case("remark", DiagnosticLevelMask::Remark) 1220 .Case("warning", DiagnosticLevelMask::Warning) 1221 .Case("error", DiagnosticLevelMask::Error) 1222 .Default(DiagnosticLevelMask::None); 1223 if (PM == DiagnosticLevelMask::None) { 1224 Success = false; 1225 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1226 } 1227 M = M | PM; 1228 } 1229 return Success; 1230 } 1231 1232 static void parseSanitizerKinds(StringRef FlagName, 1233 const std::vector<std::string> &Sanitizers, 1234 DiagnosticsEngine &Diags, SanitizerSet &S) { 1235 for (const auto &Sanitizer : Sanitizers) { 1236 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1237 if (K == SanitizerMask()) 1238 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1239 else 1240 S.set(K, true); 1241 } 1242 } 1243 1244 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1245 SmallVector<StringRef, 4> Values; 1246 serializeSanitizerSet(S, Values); 1247 return Values; 1248 } 1249 1250 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1251 ArgList &Args, DiagnosticsEngine &D, 1252 XRayInstrSet &S) { 1253 llvm::SmallVector<StringRef, 2> BundleParts; 1254 llvm::SplitString(Bundle, BundleParts, ","); 1255 for (const auto &B : BundleParts) { 1256 auto Mask = parseXRayInstrValue(B); 1257 if (Mask == XRayInstrKind::None) 1258 if (B != "none") 1259 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1260 else 1261 S.Mask = Mask; 1262 else if (Mask == XRayInstrKind::All) 1263 S.Mask = Mask; 1264 else 1265 S.set(Mask, true); 1266 } 1267 } 1268 1269 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1270 llvm::SmallVector<StringRef, 2> BundleParts; 1271 serializeXRayInstrValue(S, BundleParts); 1272 std::string Buffer; 1273 llvm::raw_string_ostream OS(Buffer); 1274 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1275 return OS.str(); 1276 } 1277 1278 // Set the profile kind using fprofile-instrument-use-path. 1279 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1280 const Twine &ProfileName) { 1281 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1282 // In error, return silently and let Clang PGOUse report the error message. 1283 if (auto E = ReaderOrErr.takeError()) { 1284 llvm::consumeError(std::move(E)); 1285 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1286 return; 1287 } 1288 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1289 std::move(ReaderOrErr.get()); 1290 if (PGOReader->isIRLevelProfile()) { 1291 if (PGOReader->hasCSIRLevelProfile()) 1292 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1293 else 1294 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1295 } else 1296 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1297 } 1298 1299 void CompilerInvocation::GenerateCodeGenArgs( 1300 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1301 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1302 const LangOptions *LangOpts) { 1303 const CodeGenOptions &CodeGenOpts = Opts; 1304 1305 if (Opts.OptimizationLevel == 0) 1306 GenerateArg(Args, OPT_O0, SA); 1307 else 1308 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1309 1310 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1311 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1312 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1313 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1314 MERGER, EXTRACTOR, TABLE_INDEX) \ 1315 GENERATE_OPTION_WITH_MARSHALLING( \ 1316 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1317 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1318 #include "clang/Driver/Options.inc" 1319 #undef CODEGEN_OPTION_WITH_MARSHALLING 1320 1321 if (Opts.OptimizationLevel > 0) { 1322 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1323 GenerateArg(Args, OPT_finline_functions, SA); 1324 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1325 GenerateArg(Args, OPT_finline_hint_functions, SA); 1326 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1327 GenerateArg(Args, OPT_fno_inline, SA); 1328 } 1329 1330 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1331 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1332 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1333 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1334 1335 Optional<StringRef> DebugInfoVal; 1336 switch (Opts.DebugInfo) { 1337 case codegenoptions::DebugLineTablesOnly: 1338 DebugInfoVal = "line-tables-only"; 1339 break; 1340 case codegenoptions::DebugDirectivesOnly: 1341 DebugInfoVal = "line-directives-only"; 1342 break; 1343 case codegenoptions::DebugInfoConstructor: 1344 DebugInfoVal = "constructor"; 1345 break; 1346 case codegenoptions::LimitedDebugInfo: 1347 DebugInfoVal = "limited"; 1348 break; 1349 case codegenoptions::FullDebugInfo: 1350 DebugInfoVal = "standalone"; 1351 break; 1352 case codegenoptions::UnusedTypeInfo: 1353 DebugInfoVal = "unused-types"; 1354 break; 1355 case codegenoptions::NoDebugInfo: // default value 1356 DebugInfoVal = None; 1357 break; 1358 case codegenoptions::LocTrackingOnly: // implied value 1359 DebugInfoVal = None; 1360 break; 1361 } 1362 if (DebugInfoVal) 1363 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1364 1365 if (Opts.DebugInfo == codegenoptions::DebugInfoConstructor) 1366 GenerateArg(Args, OPT_fuse_ctor_homing, SA); 1367 1368 for (const auto &Prefix : Opts.DebugPrefixMap) 1369 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1370 Prefix.first + "=" + Prefix.second, SA); 1371 1372 for (const auto &Prefix : Opts.CoveragePrefixMap) 1373 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1374 Prefix.first + "=" + Prefix.second, SA); 1375 1376 if (Opts.NewStructPathTBAA) 1377 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1378 1379 if (Opts.OptimizeSize == 1) 1380 GenerateArg(Args, OPT_O, "s", SA); 1381 else if (Opts.OptimizeSize == 2) 1382 GenerateArg(Args, OPT_O, "z", SA); 1383 1384 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1385 // -ffreestanding. We'll consider that when generating them. 1386 1387 // NoBuiltinFuncs are generated by LangOptions. 1388 1389 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1390 GenerateArg(Args, OPT_funroll_loops, SA); 1391 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1392 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1393 1394 if (!Opts.BinutilsVersion.empty()) 1395 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1396 1397 if (Opts.DebugNameTable == 1398 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1399 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1400 else if (Opts.DebugNameTable == 1401 static_cast<unsigned>( 1402 llvm::DICompileUnit::DebugNameTableKind::Default)) 1403 GenerateArg(Args, OPT_gpubnames, SA); 1404 1405 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1406 // it or PGOUseInstrumentor. 1407 1408 if (Opts.TimePasses) { 1409 if (Opts.TimePassesPerRun) 1410 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1411 else 1412 GenerateArg(Args, OPT_ftime_report, SA); 1413 } 1414 1415 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1416 GenerateArg(Args, OPT_flto, SA); 1417 1418 if (Opts.PrepareForThinLTO) 1419 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1420 1421 if (!Opts.ThinLTOIndexFile.empty()) 1422 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1423 1424 if (Opts.SaveTempsFilePrefix == OutputFile) 1425 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1426 1427 StringRef MemProfileBasename("memprof.profraw"); 1428 if (!Opts.MemoryProfileOutput.empty()) { 1429 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1430 GenerateArg(Args, OPT_fmemory_profile, SA); 1431 } else { 1432 size_t ArgLength = 1433 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1434 GenerateArg(Args, OPT_fmemory_profile_EQ, 1435 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1436 } 1437 } 1438 1439 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1440 GenerateArg(Args, OPT_coverage_version_EQ, 1441 StringRef(Opts.CoverageVersion, 4), SA); 1442 1443 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1444 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1445 // won't be generated.) 1446 1447 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1448 std::string InstrBundle = 1449 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1450 if (!InstrBundle.empty()) 1451 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1452 } 1453 1454 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1455 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1456 else if (Opts.CFProtectionReturn) 1457 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1458 else if (Opts.CFProtectionBranch) 1459 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1460 1461 for (const auto &F : Opts.LinkBitcodeFiles) { 1462 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1463 F.PropagateAttrs && F.Internalize; 1464 GenerateArg(Args, 1465 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1466 F.Filename, SA); 1467 } 1468 1469 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1470 // That would make it easy to generate the option only **once** if it was 1471 // explicitly set to non-default value. 1472 if (Opts.ExplicitEmulatedTLS) { 1473 GenerateArg( 1474 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1475 } 1476 1477 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1478 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1479 1480 if (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE()) 1481 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1482 SA); 1483 1484 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1485 OptSpecifier Opt = 1486 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1487 GenerateArg(Args, Opt, SA); 1488 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1489 OptSpecifier Opt = 1490 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1491 GenerateArg(Args, Opt, SA); 1492 } 1493 1494 if (Opts.EnableAIXExtendedAltivecABI) 1495 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1496 1497 if (!Opts.OptRecordPasses.empty()) 1498 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1499 1500 if (!Opts.OptRecordFormat.empty()) 1501 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1502 1503 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1504 Opts.OptimizationRemark); 1505 1506 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1507 Opts.OptimizationRemarkMissed); 1508 1509 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1510 Opts.OptimizationRemarkAnalysis); 1511 1512 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1513 Opts.DiagnosticsHotnessThreshold 1514 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1515 : "auto", 1516 SA); 1517 1518 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1519 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1520 1521 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1522 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1523 1524 if (!Opts.EmitVersionIdentMetadata) 1525 GenerateArg(Args, OPT_Qn, SA); 1526 1527 switch (Opts.FiniteLoops) { 1528 case CodeGenOptions::FiniteLoopsKind::Language: 1529 break; 1530 case CodeGenOptions::FiniteLoopsKind::Always: 1531 GenerateArg(Args, OPT_ffinite_loops, SA); 1532 break; 1533 case CodeGenOptions::FiniteLoopsKind::Never: 1534 GenerateArg(Args, OPT_fno_finite_loops, SA); 1535 break; 1536 } 1537 } 1538 1539 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1540 InputKind IK, 1541 DiagnosticsEngine &Diags, 1542 const llvm::Triple &T, 1543 const std::string &OutputFile, 1544 const LangOptions &LangOptsRef) { 1545 unsigned NumErrorsBefore = Diags.getNumErrors(); 1546 1547 bool Success = true; 1548 1549 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1550 // TODO: This could be done in Driver 1551 unsigned MaxOptLevel = 3; 1552 if (OptimizationLevel > MaxOptLevel) { 1553 // If the optimization level is not supported, fall back on the default 1554 // optimization 1555 Diags.Report(diag::warn_drv_optimization_value) 1556 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1557 OptimizationLevel = MaxOptLevel; 1558 } 1559 Opts.OptimizationLevel = OptimizationLevel; 1560 1561 // The key paths of codegen options defined in Options.td start with 1562 // "CodeGenOpts.". Let's provide the expected variable name and type. 1563 CodeGenOptions &CodeGenOpts = Opts; 1564 // Some codegen options depend on language options. Let's provide the expected 1565 // variable name and type. 1566 const LangOptions *LangOpts = &LangOptsRef; 1567 1568 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1569 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1570 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1571 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1572 MERGER, EXTRACTOR, TABLE_INDEX) \ 1573 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 1574 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1575 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 1576 MERGER, TABLE_INDEX) 1577 #include "clang/Driver/Options.inc" 1578 #undef CODEGEN_OPTION_WITH_MARSHALLING 1579 1580 // At O0 we want to fully disable inlining outside of cases marked with 1581 // 'alwaysinline' that are required for correctness. 1582 Opts.setInlining((Opts.OptimizationLevel == 0) 1583 ? CodeGenOptions::OnlyAlwaysInlining 1584 : CodeGenOptions::NormalInlining); 1585 // Explicit inlining flags can disable some or all inlining even at 1586 // optimization levels above zero. 1587 if (Arg *InlineArg = Args.getLastArg( 1588 options::OPT_finline_functions, options::OPT_finline_hint_functions, 1589 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 1590 if (Opts.OptimizationLevel > 0) { 1591 const Option &InlineOpt = InlineArg->getOption(); 1592 if (InlineOpt.matches(options::OPT_finline_functions)) 1593 Opts.setInlining(CodeGenOptions::NormalInlining); 1594 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 1595 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1596 else 1597 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1598 } 1599 } 1600 1601 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1602 // -fdirect-access-external-data. 1603 Opts.DirectAccessExternalData = 1604 Args.hasArg(OPT_fdirect_access_external_data) || 1605 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1606 LangOpts->PICLevel == 0); 1607 1608 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1609 unsigned Val = 1610 llvm::StringSwitch<unsigned>(A->getValue()) 1611 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1612 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1613 .Case("constructor", codegenoptions::DebugInfoConstructor) 1614 .Case("limited", codegenoptions::LimitedDebugInfo) 1615 .Case("standalone", codegenoptions::FullDebugInfo) 1616 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1617 .Default(~0U); 1618 if (Val == ~0U) 1619 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1620 << A->getValue(); 1621 else 1622 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1623 } 1624 1625 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1626 // constructor homing. 1627 if (Args.getLastArg(OPT_fuse_ctor_homing)) 1628 if (Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1629 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1630 1631 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1632 auto Split = StringRef(Arg).split('='); 1633 Opts.DebugPrefixMap.insert( 1634 {std::string(Split.first), std::string(Split.second)}); 1635 } 1636 1637 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1638 auto Split = StringRef(Arg).split('='); 1639 Opts.CoveragePrefixMap.insert( 1640 {std::string(Split.first), std::string(Split.second)}); 1641 } 1642 1643 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1644 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1645 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1646 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1647 1648 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1649 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1650 Opts.EmitCallSiteInfo = true; 1651 1652 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1653 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1654 << Opts.DIBugsReportFilePath; 1655 Opts.DIBugsReportFilePath = ""; 1656 } 1657 1658 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1659 Args.hasArg(OPT_new_struct_path_tbaa); 1660 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1661 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1662 if (Opts.SimplifyLibCalls) 1663 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1664 Opts.UnrollLoops = 1665 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1666 (Opts.OptimizationLevel > 1)); 1667 Opts.BinutilsVersion = 1668 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1669 1670 Opts.DebugNameTable = static_cast<unsigned>( 1671 Args.hasArg(OPT_ggnu_pubnames) 1672 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1673 : Args.hasArg(OPT_gpubnames) 1674 ? llvm::DICompileUnit::DebugNameTableKind::Default 1675 : llvm::DICompileUnit::DebugNameTableKind::None); 1676 1677 if (!Opts.ProfileInstrumentUsePath.empty()) 1678 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1679 1680 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1681 Opts.TimePasses = true; 1682 1683 // -ftime-report= is only for new pass manager. 1684 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1685 if (Opts.LegacyPassManager) 1686 Diags.Report(diag::err_drv_argument_only_allowed_with) 1687 << A->getAsString(Args) << "-fno-legacy-pass-manager"; 1688 1689 StringRef Val = A->getValue(); 1690 if (Val == "per-pass") 1691 Opts.TimePassesPerRun = false; 1692 else if (Val == "per-pass-run") 1693 Opts.TimePassesPerRun = true; 1694 else 1695 Diags.Report(diag::err_drv_invalid_value) 1696 << A->getAsString(Args) << A->getValue(); 1697 } 1698 } 1699 1700 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 1701 Opts.PrepareForThinLTO = false; 1702 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1703 StringRef S = A->getValue(); 1704 if (S == "thin") 1705 Opts.PrepareForThinLTO = true; 1706 else if (S != "full") 1707 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1708 } 1709 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1710 if (IK.getLanguage() != Language::LLVM_IR) 1711 Diags.Report(diag::err_drv_argument_only_allowed_with) 1712 << A->getAsString(Args) << "-x ir"; 1713 Opts.ThinLTOIndexFile = 1714 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1715 } 1716 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1717 Opts.SaveTempsFilePrefix = 1718 llvm::StringSwitch<std::string>(A->getValue()) 1719 .Case("obj", OutputFile) 1720 .Default(llvm::sys::path::filename(OutputFile).str()); 1721 1722 // The memory profile runtime appends the pid to make this name more unique. 1723 const char *MemProfileBasename = "memprof.profraw"; 1724 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1725 SmallString<128> Path( 1726 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1727 llvm::sys::path::append(Path, MemProfileBasename); 1728 Opts.MemoryProfileOutput = std::string(Path); 1729 } else if (Args.hasArg(OPT_fmemory_profile)) 1730 Opts.MemoryProfileOutput = MemProfileBasename; 1731 1732 memcpy(Opts.CoverageVersion, "408*", 4); 1733 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1734 if (Args.hasArg(OPT_coverage_version_EQ)) { 1735 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1736 if (CoverageVersion.size() != 4) { 1737 Diags.Report(diag::err_drv_invalid_value) 1738 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1739 << CoverageVersion; 1740 } else { 1741 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1742 } 1743 } 1744 } 1745 // FIXME: For backend options that are not yet recorded as function 1746 // attributes in the IR, keep track of them so we can embed them in a 1747 // separate data section and use them when building the bitcode. 1748 for (const auto &A : Args) { 1749 // Do not encode output and input. 1750 if (A->getOption().getID() == options::OPT_o || 1751 A->getOption().getID() == options::OPT_INPUT || 1752 A->getOption().getID() == options::OPT_x || 1753 A->getOption().getID() == options::OPT_fembed_bitcode || 1754 A->getOption().matches(options::OPT_W_Group)) 1755 continue; 1756 ArgStringList ASL; 1757 A->render(Args, ASL); 1758 for (const auto &arg : ASL) { 1759 StringRef ArgStr(arg); 1760 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1761 // using \00 to separate each commandline options. 1762 Opts.CmdArgs.push_back('\0'); 1763 } 1764 } 1765 1766 auto XRayInstrBundles = 1767 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1768 if (XRayInstrBundles.empty()) 1769 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1770 else 1771 for (const auto &A : XRayInstrBundles) 1772 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1773 Diags, Opts.XRayInstrumentationBundle); 1774 1775 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1776 StringRef Name = A->getValue(); 1777 if (Name == "full") { 1778 Opts.CFProtectionReturn = 1; 1779 Opts.CFProtectionBranch = 1; 1780 } else if (Name == "return") 1781 Opts.CFProtectionReturn = 1; 1782 else if (Name == "branch") 1783 Opts.CFProtectionBranch = 1; 1784 else if (Name != "none") { 1785 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1786 Success = false; 1787 } 1788 } 1789 1790 for (auto *A : 1791 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1792 CodeGenOptions::BitcodeFileToLink F; 1793 F.Filename = A->getValue(); 1794 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1795 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1796 // When linking CUDA bitcode, propagate function attributes so that 1797 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1798 F.PropagateAttrs = true; 1799 F.Internalize = true; 1800 } 1801 Opts.LinkBitcodeFiles.push_back(F); 1802 } 1803 1804 if (Args.getLastArg(OPT_femulated_tls) || 1805 Args.getLastArg(OPT_fno_emulated_tls)) { 1806 Opts.ExplicitEmulatedTLS = true; 1807 } 1808 1809 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1810 StringRef Val = A->getValue(); 1811 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1812 if (!Opts.FPDenormalMode.isValid()) 1813 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1814 } 1815 1816 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1817 StringRef Val = A->getValue(); 1818 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1819 if (!Opts.FP32DenormalMode.isValid()) 1820 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1821 } 1822 1823 // X86_32 has -fppc-struct-return and -freg-struct-return. 1824 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1825 if (Arg *A = 1826 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1827 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1828 // TODO: We might want to consider enabling these options on AIX in the 1829 // future. 1830 if (T.isOSAIX()) 1831 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1832 << A->getSpelling() << T.str(); 1833 1834 const Option &O = A->getOption(); 1835 if (O.matches(OPT_fpcc_struct_return) || 1836 O.matches(OPT_maix_struct_return)) { 1837 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1838 } else { 1839 assert(O.matches(OPT_freg_struct_return) || 1840 O.matches(OPT_msvr4_struct_return)); 1841 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1842 } 1843 } 1844 1845 if (Arg *A = 1846 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1847 if (!T.isOSAIX()) 1848 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1849 << A->getSpelling() << T.str(); 1850 1851 const Option &O = A->getOption(); 1852 if (O.matches(OPT_mabi_EQ_vec_default)) 1853 Diags.Report(diag::err_aix_default_altivec_abi) 1854 << A->getSpelling() << T.str(); 1855 else { 1856 assert(O.matches(OPT_mabi_EQ_vec_extabi)); 1857 Opts.EnableAIXExtendedAltivecABI = 1; 1858 } 1859 } 1860 1861 bool NeedLocTracking = false; 1862 1863 if (!Opts.OptRecordFile.empty()) 1864 NeedLocTracking = true; 1865 1866 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1867 Opts.OptRecordPasses = A->getValue(); 1868 NeedLocTracking = true; 1869 } 1870 1871 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1872 Opts.OptRecordFormat = A->getValue(); 1873 NeedLocTracking = true; 1874 } 1875 1876 Opts.OptimizationRemark = 1877 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1878 1879 Opts.OptimizationRemarkMissed = 1880 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1881 1882 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1883 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1884 1885 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1886 Opts.OptimizationRemarkMissed.hasValidPattern() || 1887 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1888 1889 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1890 bool UsingProfile = UsingSampleProfile || 1891 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1892 1893 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1894 // An IR file will contain PGO as metadata 1895 IK.getLanguage() != Language::LLVM_IR) 1896 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1897 << "-fdiagnostics-show-hotness"; 1898 1899 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1900 if (auto *arg = 1901 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1902 auto ResultOrErr = 1903 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1904 1905 if (!ResultOrErr) { 1906 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1907 << "-fdiagnostics-hotness-threshold="; 1908 } else { 1909 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1910 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1911 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1912 !UsingProfile) 1913 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1914 << "-fdiagnostics-hotness-threshold="; 1915 } 1916 } 1917 1918 // If the user requested to use a sample profile for PGO, then the 1919 // backend will need to track source location information so the profile 1920 // can be incorporated into the IR. 1921 if (UsingSampleProfile) 1922 NeedLocTracking = true; 1923 1924 // If the user requested a flag that requires source locations available in 1925 // the backend, make sure that the backend tracks source location information. 1926 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1927 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1928 1929 // Parse -fsanitize-recover= arguments. 1930 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1931 parseSanitizerKinds("-fsanitize-recover=", 1932 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1933 Opts.SanitizeRecover); 1934 parseSanitizerKinds("-fsanitize-trap=", 1935 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1936 Opts.SanitizeTrap); 1937 1938 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1939 1940 if (Args.hasArg(options::OPT_ffinite_loops)) 1941 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 1942 else if (Args.hasArg(options::OPT_fno_finite_loops)) 1943 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 1944 1945 return Success && Diags.getNumErrors() == NumErrorsBefore; 1946 } 1947 1948 static void 1949 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 1950 SmallVectorImpl<const char *> &Args, 1951 CompilerInvocation::StringAllocator SA) { 1952 const DependencyOutputOptions &DependencyOutputOpts = Opts; 1953 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1954 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1955 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1956 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1957 MERGER, EXTRACTOR, TABLE_INDEX) \ 1958 GENERATE_OPTION_WITH_MARSHALLING( \ 1959 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1960 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1961 #include "clang/Driver/Options.inc" 1962 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 1963 1964 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 1965 GenerateArg(Args, OPT_show_includes, SA); 1966 1967 for (const auto &Dep : Opts.ExtraDeps) { 1968 switch (Dep.second) { 1969 case EDK_SanitizeBlacklist: 1970 // Sanitizer blacklist arguments are generated from LanguageOptions. 1971 continue; 1972 case EDK_ModuleFile: 1973 // Module file arguments are generated from FrontendOptions and 1974 // HeaderSearchOptions. 1975 continue; 1976 case EDK_ProfileList: 1977 // Profile list arguments are generated from LanguageOptions via the 1978 // marshalling infrastructure. 1979 continue; 1980 case EDK_DepFileEntry: 1981 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 1982 break; 1983 } 1984 } 1985 } 1986 1987 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1988 ArgList &Args, DiagnosticsEngine &Diags, 1989 frontend::ActionKind Action, 1990 bool ShowLineMarkers) { 1991 unsigned NumErrorsBefore = Diags.getNumErrors(); 1992 bool Success = true; 1993 1994 DependencyOutputOptions &DependencyOutputOpts = Opts; 1995 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1996 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1997 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1998 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1999 MERGER, EXTRACTOR, TABLE_INDEX) \ 2000 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2001 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2002 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2003 MERGER, TABLE_INDEX) 2004 #include "clang/Driver/Options.inc" 2005 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2006 2007 if (Args.hasArg(OPT_show_includes)) { 2008 // Writing both /showIncludes and preprocessor output to stdout 2009 // would produce interleaved output, so use stderr for /showIncludes. 2010 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2011 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2012 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2013 else 2014 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2015 } else { 2016 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2017 } 2018 2019 // Add sanitizer blacklists as extra dependencies. 2020 // They won't be discovered by the regular preprocessor, so 2021 // we let make / ninja to know about this implicit dependency. 2022 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 2023 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 2024 StringRef Val = A->getValue(); 2025 if (Val.find('=') == StringRef::npos) 2026 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeBlacklist); 2027 } 2028 if (Opts.IncludeSystemHeaders) { 2029 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 2030 StringRef Val = A->getValue(); 2031 if (Val.find('=') == StringRef::npos) 2032 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeBlacklist); 2033 } 2034 } 2035 } 2036 2037 // -fprofile-list= dependencies. 2038 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2039 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2040 2041 // Propagate the extra dependencies. 2042 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2043 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2044 2045 // Only the -fmodule-file=<file> form. 2046 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2047 StringRef Val = A->getValue(); 2048 if (Val.find('=') == StringRef::npos) 2049 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2050 } 2051 2052 return Success && Diags.getNumErrors() == NumErrorsBefore; 2053 } 2054 2055 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2056 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2057 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2058 // Support both clang's -f[no-]color-diagnostics and gcc's 2059 // -f[no-]diagnostics-colors[=never|always|auto]. 2060 enum { 2061 Colors_On, 2062 Colors_Off, 2063 Colors_Auto 2064 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2065 for (auto *A : Args) { 2066 const Option &O = A->getOption(); 2067 if (O.matches(options::OPT_fcolor_diagnostics) || 2068 O.matches(options::OPT_fdiagnostics_color)) { 2069 ShowColors = Colors_On; 2070 } else if (O.matches(options::OPT_fno_color_diagnostics) || 2071 O.matches(options::OPT_fno_diagnostics_color)) { 2072 ShowColors = Colors_Off; 2073 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2074 StringRef Value(A->getValue()); 2075 if (Value == "always") 2076 ShowColors = Colors_On; 2077 else if (Value == "never") 2078 ShowColors = Colors_Off; 2079 else if (Value == "auto") 2080 ShowColors = Colors_Auto; 2081 } 2082 } 2083 return ShowColors == Colors_On || 2084 (ShowColors == Colors_Auto && 2085 llvm::sys::Process::StandardErrHasColors()); 2086 } 2087 2088 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2089 DiagnosticsEngine &Diags) { 2090 bool Success = true; 2091 for (const auto &Prefix : VerifyPrefixes) { 2092 // Every prefix must start with a letter and contain only alphanumeric 2093 // characters, hyphens, and underscores. 2094 auto BadChar = llvm::find_if(Prefix, [](char C) { 2095 return !isAlphanumeric(C) && C != '-' && C != '_'; 2096 }); 2097 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2098 Success = false; 2099 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2100 Diags.Report(diag::note_drv_verify_prefix_spelling); 2101 } 2102 } 2103 return Success; 2104 } 2105 2106 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2107 SmallVectorImpl<const char *> &Args, 2108 CompilerInvocation::StringAllocator SA) { 2109 const FileSystemOptions &FileSystemOpts = Opts; 2110 2111 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2112 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2113 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2114 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2115 MERGER, EXTRACTOR, TABLE_INDEX) \ 2116 GENERATE_OPTION_WITH_MARSHALLING( \ 2117 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2118 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2119 #include "clang/Driver/Options.inc" 2120 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2121 } 2122 2123 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2124 DiagnosticsEngine &Diags) { 2125 FileSystemOptions &FileSystemOpts = Opts; 2126 bool Success = true; 2127 2128 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2129 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2130 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2131 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2132 MERGER, EXTRACTOR, TABLE_INDEX) \ 2133 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2134 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2135 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2136 MERGER, TABLE_INDEX) 2137 #include "clang/Driver/Options.inc" 2138 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2139 2140 return Success; 2141 } 2142 2143 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2144 SmallVectorImpl<const char *> &Args, 2145 CompilerInvocation::StringAllocator SA) { 2146 const MigratorOptions &MigratorOpts = Opts; 2147 2148 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2149 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2150 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2151 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2152 MERGER, EXTRACTOR, TABLE_INDEX) \ 2153 GENERATE_OPTION_WITH_MARSHALLING( \ 2154 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2155 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2156 #include "clang/Driver/Options.inc" 2157 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2158 } 2159 2160 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2161 DiagnosticsEngine &Diags) { 2162 MigratorOptions &MigratorOpts = Opts; 2163 bool Success = true; 2164 2165 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2166 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2167 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2168 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2169 MERGER, EXTRACTOR, TABLE_INDEX) \ 2170 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2171 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2172 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2173 MERGER, TABLE_INDEX) 2174 #include "clang/Driver/Options.inc" 2175 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2176 2177 return Success; 2178 } 2179 2180 void CompilerInvocation::GenerateDiagnosticArgs( 2181 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2182 StringAllocator SA, bool DefaultDiagColor) { 2183 const DiagnosticOptions *DiagnosticOpts = &Opts; 2184 #define DIAG_OPTION_WITH_MARSHALLING( \ 2185 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2186 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2187 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2188 MERGER, EXTRACTOR, TABLE_INDEX) \ 2189 GENERATE_OPTION_WITH_MARSHALLING( \ 2190 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2191 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2192 #include "clang/Driver/Options.inc" 2193 #undef DIAG_OPTION_WITH_MARSHALLING 2194 2195 if (!Opts.DiagnosticSerializationFile.empty()) 2196 GenerateArg(Args, OPT_diagnostic_serialized_file, 2197 Opts.DiagnosticSerializationFile, SA); 2198 2199 if (Opts.ShowColors) 2200 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2201 2202 if (Opts.VerifyDiagnostics && 2203 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2204 GenerateArg(Args, OPT_verify, SA); 2205 2206 for (const auto &Prefix : Opts.VerifyPrefixes) 2207 if (Prefix != "expected") 2208 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2209 2210 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2211 if (VIU == DiagnosticLevelMask::None) { 2212 // This is the default, don't generate anything. 2213 } else if (VIU == DiagnosticLevelMask::All) { 2214 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2215 } else { 2216 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2217 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2218 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2219 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2220 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2221 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2222 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2223 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2224 } 2225 2226 for (const auto &Warning : Opts.Warnings) { 2227 // This option is automatically generated from UndefPrefixes. 2228 if (Warning == "undef-prefix") 2229 continue; 2230 Args.push_back(SA(StringRef("-W") + Warning)); 2231 } 2232 2233 for (const auto &Remark : Opts.Remarks) { 2234 // These arguments are generated from OptimizationRemark fields of 2235 // CodeGenOptions. 2236 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2237 "pass-analysis", "no-pass-analysis", 2238 "pass-missed", "no-pass-missed"}; 2239 if (llvm::is_contained(IgnoredRemarks, Remark)) 2240 continue; 2241 2242 Args.push_back(SA(StringRef("-R") + Remark)); 2243 } 2244 } 2245 2246 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2247 DiagnosticsEngine *Diags, 2248 bool DefaultDiagColor) { 2249 Optional<DiagnosticsEngine> IgnoringDiags; 2250 if (!Diags) { 2251 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2252 new IgnoringDiagConsumer()); 2253 Diags = &*IgnoringDiags; 2254 } 2255 2256 // The key paths of diagnostic options defined in Options.td start with 2257 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2258 DiagnosticOptions *DiagnosticOpts = &Opts; 2259 bool Success = true; 2260 2261 #define DIAG_OPTION_WITH_MARSHALLING( \ 2262 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2263 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2264 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2265 MERGER, EXTRACTOR, TABLE_INDEX) \ 2266 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, Success, ID, FLAGS, PARAM, \ 2267 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2268 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2269 MERGER, TABLE_INDEX) 2270 #include "clang/Driver/Options.inc" 2271 #undef DIAG_OPTION_WITH_MARSHALLING 2272 2273 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2274 2275 if (Arg *A = 2276 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2277 Opts.DiagnosticSerializationFile = A->getValue(); 2278 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2279 2280 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2281 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2282 if (Args.hasArg(OPT_verify)) 2283 Opts.VerifyPrefixes.push_back("expected"); 2284 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2285 // then sort it to prepare for fast lookup using std::binary_search. 2286 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) { 2287 Opts.VerifyDiagnostics = false; 2288 Success = false; 2289 } 2290 else 2291 llvm::sort(Opts.VerifyPrefixes); 2292 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2293 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 2294 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 2295 *Diags, DiagMask); 2296 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2297 DiagMask = DiagnosticLevelMask::All; 2298 Opts.setVerifyIgnoreUnexpected(DiagMask); 2299 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2300 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2301 Diags->Report(diag::warn_ignoring_ftabstop_value) 2302 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2303 } 2304 2305 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2306 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2307 2308 return Success; 2309 } 2310 2311 /// Parse the argument to the -ftest-module-file-extension 2312 /// command-line argument. 2313 /// 2314 /// \returns true on error, false on success. 2315 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2316 std::string &BlockName, 2317 unsigned &MajorVersion, 2318 unsigned &MinorVersion, 2319 bool &Hashed, 2320 std::string &UserInfo) { 2321 SmallVector<StringRef, 5> Args; 2322 Arg.split(Args, ':', 5); 2323 if (Args.size() < 5) 2324 return true; 2325 2326 BlockName = std::string(Args[0]); 2327 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2328 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2329 if (Args[3].getAsInteger(2, Hashed)) return true; 2330 if (Args.size() > 4) 2331 UserInfo = std::string(Args[4]); 2332 return false; 2333 } 2334 2335 /// Return a table that associates command line option specifiers with the 2336 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2337 /// intentionally missing, as this case is handled separately from other 2338 /// frontend options. 2339 static const auto &getFrontendActionTable() { 2340 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2341 {frontend::ASTDeclList, OPT_ast_list}, 2342 2343 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2344 {frontend::ASTDump, OPT_ast_dump_all}, 2345 {frontend::ASTDump, OPT_ast_dump_EQ}, 2346 {frontend::ASTDump, OPT_ast_dump}, 2347 {frontend::ASTDump, OPT_ast_dump_lookups}, 2348 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2349 2350 {frontend::ASTPrint, OPT_ast_print}, 2351 {frontend::ASTView, OPT_ast_view}, 2352 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2353 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2354 {frontend::DumpTokens, OPT_dump_tokens}, 2355 {frontend::EmitAssembly, OPT_S}, 2356 {frontend::EmitBC, OPT_emit_llvm_bc}, 2357 {frontend::EmitHTML, OPT_emit_html}, 2358 {frontend::EmitLLVM, OPT_emit_llvm}, 2359 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2360 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2361 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2362 {frontend::EmitObj, OPT_emit_obj}, 2363 2364 {frontend::FixIt, OPT_fixit_EQ}, 2365 {frontend::FixIt, OPT_fixit}, 2366 2367 {frontend::GenerateModule, OPT_emit_module}, 2368 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2369 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2370 {frontend::GeneratePCH, OPT_emit_pch}, 2371 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2372 {frontend::InitOnly, OPT_init_only}, 2373 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2374 {frontend::ModuleFileInfo, OPT_module_file_info}, 2375 {frontend::VerifyPCH, OPT_verify_pch}, 2376 {frontend::PrintPreamble, OPT_print_preamble}, 2377 {frontend::PrintPreprocessedInput, OPT_E}, 2378 {frontend::TemplightDump, OPT_templight_dump}, 2379 {frontend::RewriteMacros, OPT_rewrite_macros}, 2380 {frontend::RewriteObjC, OPT_rewrite_objc}, 2381 {frontend::RewriteTest, OPT_rewrite_test}, 2382 {frontend::RunAnalysis, OPT_analyze}, 2383 {frontend::MigrateSource, OPT_migrate}, 2384 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2385 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2386 OPT_print_dependency_directives_minimized_source}, 2387 }; 2388 2389 return Table; 2390 } 2391 2392 /// Maps command line option to frontend action. 2393 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2394 for (const auto &ActionOpt : getFrontendActionTable()) 2395 if (ActionOpt.second == Opt.getID()) 2396 return ActionOpt.first; 2397 2398 return None; 2399 } 2400 2401 /// Maps frontend action to command line option. 2402 static Optional<OptSpecifier> 2403 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2404 for (const auto &ActionOpt : getFrontendActionTable()) 2405 if (ActionOpt.first == ProgramAction) 2406 return OptSpecifier(ActionOpt.second); 2407 2408 return None; 2409 } 2410 2411 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2412 SmallVectorImpl<const char *> &Args, 2413 CompilerInvocation::StringAllocator SA, 2414 bool IsHeader) { 2415 const FrontendOptions &FrontendOpts = Opts; 2416 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2417 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2418 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2419 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2420 MERGER, EXTRACTOR, TABLE_INDEX) \ 2421 GENERATE_OPTION_WITH_MARSHALLING( \ 2422 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2423 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2424 #include "clang/Driver/Options.inc" 2425 #undef FRONTEND_OPTION_WITH_MARSHALLING 2426 2427 Optional<OptSpecifier> ProgramActionOpt = 2428 getProgramActionOpt(Opts.ProgramAction); 2429 2430 // Generating a simple flag covers most frontend actions. 2431 std::function<void()> GenerateProgramAction = [&]() { 2432 GenerateArg(Args, *ProgramActionOpt, SA); 2433 }; 2434 2435 if (!ProgramActionOpt) { 2436 // PluginAction is the only program action handled separately. 2437 assert(Opts.ProgramAction == frontend::PluginAction && 2438 "Frontend action without option."); 2439 GenerateProgramAction = [&]() { 2440 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2441 }; 2442 } 2443 2444 // FIXME: Simplify the complex 'AST dump' command line. 2445 if (Opts.ProgramAction == frontend::ASTDump) { 2446 GenerateProgramAction = [&]() { 2447 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2448 // marshalling infrastructure. 2449 2450 if (Opts.ASTDumpFormat != ADOF_Default) { 2451 StringRef Format; 2452 switch (Opts.ASTDumpFormat) { 2453 case ADOF_Default: 2454 llvm_unreachable("Default AST dump format."); 2455 case ADOF_JSON: 2456 Format = "json"; 2457 break; 2458 } 2459 2460 if (Opts.ASTDumpAll) 2461 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2462 if (Opts.ASTDumpDecls) 2463 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2464 } else { 2465 if (Opts.ASTDumpAll) 2466 GenerateArg(Args, OPT_ast_dump_all, SA); 2467 if (Opts.ASTDumpDecls) 2468 GenerateArg(Args, OPT_ast_dump, SA); 2469 } 2470 }; 2471 } 2472 2473 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2474 GenerateProgramAction = [&]() { 2475 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2476 }; 2477 } 2478 2479 GenerateProgramAction(); 2480 2481 for (const auto &PluginArgs : Opts.PluginArgs) { 2482 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2483 const char *Spelling = 2484 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2485 for (const auto &PluginArg : PluginArgs.second) 2486 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2487 } 2488 2489 for (const auto &Ext : Opts.ModuleFileExtensions) 2490 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2491 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2492 2493 if (!Opts.CodeCompletionAt.FileName.empty()) 2494 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2495 SA); 2496 2497 for (const auto &Plugin : Opts.Plugins) 2498 GenerateArg(Args, OPT_load, Plugin, SA); 2499 2500 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2501 2502 for (const auto &ModuleFile : Opts.ModuleFiles) 2503 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2504 2505 if (Opts.AuxTargetCPU.hasValue()) 2506 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2507 2508 if (Opts.AuxTargetFeatures.hasValue()) 2509 for (const auto &Feature : *Opts.AuxTargetFeatures) 2510 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2511 2512 { 2513 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2514 StringRef ModuleMap = 2515 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2516 StringRef Header = IsHeader ? "-header" : ""; 2517 2518 StringRef Lang; 2519 switch (Opts.DashX.getLanguage()) { 2520 case Language::C: 2521 Lang = "c"; 2522 break; 2523 case Language::OpenCL: 2524 Lang = "cl"; 2525 break; 2526 case Language::OpenCLCXX: 2527 Lang = "clcpp"; 2528 break; 2529 case Language::CUDA: 2530 Lang = "cuda"; 2531 break; 2532 case Language::HIP: 2533 Lang = "hip"; 2534 break; 2535 case Language::CXX: 2536 Lang = "c++"; 2537 break; 2538 case Language::ObjC: 2539 Lang = "objective-c"; 2540 break; 2541 case Language::ObjCXX: 2542 Lang = "objective-c++"; 2543 break; 2544 case Language::RenderScript: 2545 Lang = "renderscript"; 2546 break; 2547 case Language::Asm: 2548 Lang = "assembler-with-cpp"; 2549 break; 2550 case Language::Unknown: 2551 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2552 "Generating -x argument for unknown language (not precompiled)."); 2553 Lang = "ast"; 2554 break; 2555 case Language::LLVM_IR: 2556 Lang = "ir"; 2557 break; 2558 } 2559 2560 GenerateArg(Args, OPT_x, Lang + Header + ModuleMap + Preprocessed, SA); 2561 } 2562 2563 // OPT_INPUT has a unique class, generate it directly. 2564 for (const auto &Input : Opts.Inputs) 2565 Args.push_back(SA(Input.getFile())); 2566 } 2567 2568 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2569 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2570 FrontendOptions &FrontendOpts = Opts; 2571 bool Success = true; 2572 unsigned NumErrorsBefore = Diags.getNumErrors(); 2573 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2574 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2575 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2576 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2577 MERGER, EXTRACTOR, TABLE_INDEX) \ 2578 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2579 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2580 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2581 MERGER, TABLE_INDEX) 2582 #include "clang/Driver/Options.inc" 2583 #undef FRONTEND_OPTION_WITH_MARSHALLING 2584 2585 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2586 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2587 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2588 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2589 assert(ProgramAction && "Option specifier not in Action_Group."); 2590 2591 if (ProgramAction == frontend::ASTDump && 2592 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2593 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2594 .CaseLower("default", ADOF_Default) 2595 .CaseLower("json", ADOF_JSON) 2596 .Default(std::numeric_limits<unsigned>::max()); 2597 2598 if (Val != std::numeric_limits<unsigned>::max()) 2599 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2600 else { 2601 Diags.Report(diag::err_drv_invalid_value) 2602 << A->getAsString(Args) << A->getValue(); 2603 Opts.ASTDumpFormat = ADOF_Default; 2604 } 2605 } 2606 2607 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2608 Opts.FixItSuffix = A->getValue(); 2609 2610 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2611 StringRef ArgStr = 2612 Args.hasArg(OPT_interface_stub_version_EQ) 2613 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2614 : "experimental-ifs-v2"; 2615 if (ArgStr == "experimental-yaml-elf-v1" || 2616 ArgStr == "experimental-ifs-v1" || 2617 ArgStr == "experimental-tapi-elf-v1") { 2618 std::string ErrorMessage = 2619 "Invalid interface stub format: " + ArgStr.str() + 2620 " is deprecated."; 2621 Diags.Report(diag::err_drv_invalid_value) 2622 << "Must specify a valid interface stub format type, ie: " 2623 "-interface-stub-version=experimental-ifs-v2" 2624 << ErrorMessage; 2625 ProgramAction = frontend::ParseSyntaxOnly; 2626 } else if (!ArgStr.startswith("experimental-ifs-")) { 2627 std::string ErrorMessage = 2628 "Invalid interface stub format: " + ArgStr.str() + "."; 2629 Diags.Report(diag::err_drv_invalid_value) 2630 << "Must specify a valid interface stub format type, ie: " 2631 "-interface-stub-version=experimental-ifs-v2" 2632 << ErrorMessage; 2633 ProgramAction = frontend::ParseSyntaxOnly; 2634 } 2635 } 2636 2637 Opts.ProgramAction = *ProgramAction; 2638 } 2639 2640 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2641 Opts.Plugins.emplace_back(A->getValue(0)); 2642 Opts.ProgramAction = frontend::PluginAction; 2643 Opts.ActionName = A->getValue(); 2644 } 2645 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2646 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2647 2648 for (const std::string &Arg : 2649 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2650 std::string BlockName; 2651 unsigned MajorVersion; 2652 unsigned MinorVersion; 2653 bool Hashed; 2654 std::string UserInfo; 2655 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2656 MinorVersion, Hashed, UserInfo)) { 2657 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2658 2659 continue; 2660 } 2661 2662 // Add the testing module file extension. 2663 Opts.ModuleFileExtensions.push_back( 2664 std::make_shared<TestModuleFileExtension>( 2665 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2666 } 2667 2668 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2669 Opts.CodeCompletionAt = 2670 ParsedSourceLocation::FromString(A->getValue()); 2671 if (Opts.CodeCompletionAt.FileName.empty()) 2672 Diags.Report(diag::err_drv_invalid_value) 2673 << A->getAsString(Args) << A->getValue(); 2674 } 2675 2676 Opts.Plugins = Args.getAllArgValues(OPT_load); 2677 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2678 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2679 // Only the -fmodule-file=<file> form. 2680 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2681 StringRef Val = A->getValue(); 2682 if (Val.find('=') == StringRef::npos) 2683 Opts.ModuleFiles.push_back(std::string(Val)); 2684 } 2685 2686 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2687 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2688 << "-emit-module"; 2689 2690 if (Args.hasArg(OPT_aux_target_cpu)) 2691 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2692 if (Args.hasArg(OPT_aux_target_feature)) 2693 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2694 2695 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2696 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2697 Diags.Report(diag::err_drv_argument_not_allowed_with) 2698 << "ARC migration" << "ObjC migration"; 2699 } 2700 2701 InputKind DashX(Language::Unknown); 2702 if (const Arg *A = Args.getLastArg(OPT_x)) { 2703 StringRef XValue = A->getValue(); 2704 2705 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2706 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2707 bool Preprocessed = XValue.consume_back("-cpp-output"); 2708 bool ModuleMap = XValue.consume_back("-module-map"); 2709 IsHeaderFile = !Preprocessed && !ModuleMap && 2710 XValue != "precompiled-header" && 2711 XValue.consume_back("-header"); 2712 2713 // Principal languages. 2714 DashX = llvm::StringSwitch<InputKind>(XValue) 2715 .Case("c", Language::C) 2716 .Case("cl", Language::OpenCL) 2717 .Case("clcpp", Language::OpenCLCXX) 2718 .Case("cuda", Language::CUDA) 2719 .Case("hip", Language::HIP) 2720 .Case("c++", Language::CXX) 2721 .Case("objective-c", Language::ObjC) 2722 .Case("objective-c++", Language::ObjCXX) 2723 .Case("renderscript", Language::RenderScript) 2724 .Default(Language::Unknown); 2725 2726 // "objc[++]-cpp-output" is an acceptable synonym for 2727 // "objective-c[++]-cpp-output". 2728 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2729 DashX = llvm::StringSwitch<InputKind>(XValue) 2730 .Case("objc", Language::ObjC) 2731 .Case("objc++", Language::ObjCXX) 2732 .Default(Language::Unknown); 2733 2734 // Some special cases cannot be combined with suffixes. 2735 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2736 DashX = llvm::StringSwitch<InputKind>(XValue) 2737 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2738 .Case("assembler-with-cpp", Language::Asm) 2739 .Cases("ast", "pcm", "precompiled-header", 2740 InputKind(Language::Unknown, InputKind::Precompiled)) 2741 .Case("ir", Language::LLVM_IR) 2742 .Default(Language::Unknown); 2743 2744 if (DashX.isUnknown()) 2745 Diags.Report(diag::err_drv_invalid_value) 2746 << A->getAsString(Args) << A->getValue(); 2747 2748 if (Preprocessed) 2749 DashX = DashX.getPreprocessed(); 2750 if (ModuleMap) 2751 DashX = DashX.withFormat(InputKind::ModuleMap); 2752 } 2753 2754 // '-' is the default input if none is given. 2755 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2756 Opts.Inputs.clear(); 2757 if (Inputs.empty()) 2758 Inputs.push_back("-"); 2759 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2760 InputKind IK = DashX; 2761 if (IK.isUnknown()) { 2762 IK = FrontendOptions::getInputKindForExtension( 2763 StringRef(Inputs[i]).rsplit('.').second); 2764 // FIXME: Warn on this? 2765 if (IK.isUnknown()) 2766 IK = Language::C; 2767 // FIXME: Remove this hack. 2768 if (i == 0) 2769 DashX = IK; 2770 } 2771 2772 bool IsSystem = false; 2773 2774 // The -emit-module action implicitly takes a module map. 2775 if (Opts.ProgramAction == frontend::GenerateModule && 2776 IK.getFormat() == InputKind::Source) { 2777 IK = IK.withFormat(InputKind::ModuleMap); 2778 IsSystem = Opts.IsSystemModule; 2779 } 2780 2781 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2782 } 2783 2784 Opts.DashX = DashX; 2785 2786 return Diags.getNumErrors() == NumErrorsBefore; 2787 } 2788 2789 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2790 void *MainAddr) { 2791 std::string ClangExecutable = 2792 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2793 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2794 } 2795 2796 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2797 SmallVectorImpl<const char *> &Args, 2798 CompilerInvocation::StringAllocator SA) { 2799 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2800 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2801 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2802 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2803 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2804 MERGER, EXTRACTOR, TABLE_INDEX) \ 2805 GENERATE_OPTION_WITH_MARSHALLING( \ 2806 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2807 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2808 #include "clang/Driver/Options.inc" 2809 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2810 2811 if (Opts.UseLibcxx) 2812 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2813 2814 if (!Opts.ModuleCachePath.empty()) 2815 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2816 2817 for (const auto &File : Opts.PrebuiltModuleFiles) 2818 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2819 2820 for (const auto &Path : Opts.PrebuiltModulePaths) 2821 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2822 2823 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2824 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2825 2826 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2827 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2828 llvm::Optional<bool> IsFramework, 2829 llvm::Optional<bool> IgnoreSysRoot) { 2830 return llvm::find(Groups, Entry.Group) != Groups.end() && 2831 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2832 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2833 }; 2834 2835 auto It = Opts.UserEntries.begin(); 2836 auto End = Opts.UserEntries.end(); 2837 2838 // Add -I..., -F..., and -index-header-map options in order. 2839 for (; It < End && 2840 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2841 ++It) { 2842 OptSpecifier Opt = [It, Matches]() { 2843 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2844 return OPT_F; 2845 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2846 return OPT_I; 2847 if (Matches(*It, frontend::Angled, true, true)) 2848 return OPT_F; 2849 if (Matches(*It, frontend::Angled, false, true)) 2850 return OPT_I; 2851 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2852 }(); 2853 2854 if (It->Group == frontend::IndexHeaderMap) 2855 GenerateArg(Args, OPT_index_header_map, SA); 2856 GenerateArg(Args, Opt, It->Path, SA); 2857 }; 2858 2859 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2860 // have already been generated as "-I[xx]yy". If that's the case, their 2861 // position on command line was such that this has no semantic impact on 2862 // include paths. 2863 for (; It < End && 2864 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2865 ++It) { 2866 OptSpecifier Opt = 2867 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2868 GenerateArg(Args, Opt, It->Path, SA); 2869 } 2870 2871 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2872 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2873 // command line was such that this has no semantic impact on include paths. 2874 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2875 GenerateArg(Args, OPT_idirafter, It->Path, SA); 2876 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 2877 GenerateArg(Args, OPT_iquote, It->Path, SA); 2878 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 2879 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 2880 It->Path, SA); 2881 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 2882 GenerateArg(Args, OPT_iframework, It->Path, SA); 2883 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 2884 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 2885 2886 // Add the paths for the various language specific isystem flags. 2887 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 2888 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 2889 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 2890 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 2891 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 2892 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 2893 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 2894 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 2895 2896 // Add the internal paths from a driver that detects standard include paths. 2897 // Note: Some paths that came from "-internal-isystem" arguments may have 2898 // already been generated as "-isystem". If that's the case, their position on 2899 // command line was such that this has no semantic impact on include paths. 2900 for (; It < End && 2901 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 2902 ++It) { 2903 OptSpecifier Opt = It->Group == frontend::System 2904 ? OPT_internal_isystem 2905 : OPT_internal_externc_isystem; 2906 GenerateArg(Args, Opt, It->Path, SA); 2907 } 2908 2909 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 2910 2911 // Add the path prefixes which are implicitly treated as being system headers. 2912 for (const auto &P : Opts.SystemHeaderPrefixes) { 2913 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 2914 : OPT_no_system_header_prefix; 2915 GenerateArg(Args, Opt, P.Prefix, SA); 2916 } 2917 2918 for (const std::string &F : Opts.VFSOverlayFiles) 2919 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 2920 } 2921 2922 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2923 DiagnosticsEngine &Diags, 2924 const std::string &WorkingDir) { 2925 HeaderSearchOptions *HeaderSearchOpts = &Opts; 2926 bool Success = true; 2927 2928 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2929 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2930 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2931 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2932 MERGER, EXTRACTOR, TABLE_INDEX) \ 2933 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2934 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2935 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2936 MERGER, TABLE_INDEX) 2937 #include "clang/Driver/Options.inc" 2938 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2939 2940 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2941 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2942 2943 // Canonicalize -fmodules-cache-path before storing it. 2944 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2945 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2946 if (WorkingDir.empty()) 2947 llvm::sys::fs::make_absolute(P); 2948 else 2949 llvm::sys::fs::make_absolute(WorkingDir, P); 2950 } 2951 llvm::sys::path::remove_dots(P); 2952 Opts.ModuleCachePath = std::string(P.str()); 2953 2954 // Only the -fmodule-file=<name>=<file> form. 2955 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2956 StringRef Val = A->getValue(); 2957 if (Val.find('=') != StringRef::npos){ 2958 auto Split = Val.split('='); 2959 Opts.PrebuiltModuleFiles.insert( 2960 {std::string(Split.first), std::string(Split.second)}); 2961 } 2962 } 2963 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2964 Opts.AddPrebuiltModulePath(A->getValue()); 2965 2966 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2967 StringRef MacroDef = A->getValue(); 2968 Opts.ModulesIgnoreMacros.insert( 2969 llvm::CachedHashString(MacroDef.split('=').first)); 2970 } 2971 2972 // Add -I..., -F..., and -index-header-map options in order. 2973 bool IsIndexHeaderMap = false; 2974 bool IsSysrootSpecified = 2975 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2976 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2977 if (A->getOption().matches(OPT_index_header_map)) { 2978 // -index-header-map applies to the next -I or -F. 2979 IsIndexHeaderMap = true; 2980 continue; 2981 } 2982 2983 frontend::IncludeDirGroup Group = 2984 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2985 2986 bool IsFramework = A->getOption().matches(OPT_F); 2987 std::string Path = A->getValue(); 2988 2989 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2990 SmallString<32> Buffer; 2991 llvm::sys::path::append(Buffer, Opts.Sysroot, 2992 llvm::StringRef(A->getValue()).substr(1)); 2993 Path = std::string(Buffer.str()); 2994 } 2995 2996 Opts.AddPath(Path, Group, IsFramework, 2997 /*IgnoreSysroot*/ true); 2998 IsIndexHeaderMap = false; 2999 } 3000 3001 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3002 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3003 for (const auto *A : 3004 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3005 if (A->getOption().matches(OPT_iprefix)) 3006 Prefix = A->getValue(); 3007 else if (A->getOption().matches(OPT_iwithprefix)) 3008 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3009 else 3010 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3011 } 3012 3013 for (const auto *A : Args.filtered(OPT_idirafter)) 3014 Opts.AddPath(A->getValue(), frontend::After, false, true); 3015 for (const auto *A : Args.filtered(OPT_iquote)) 3016 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3017 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3018 Opts.AddPath(A->getValue(), frontend::System, false, 3019 !A->getOption().matches(OPT_iwithsysroot)); 3020 for (const auto *A : Args.filtered(OPT_iframework)) 3021 Opts.AddPath(A->getValue(), frontend::System, true, true); 3022 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3023 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3024 /*IgnoreSysRoot=*/false); 3025 3026 // Add the paths for the various language specific isystem flags. 3027 for (const auto *A : Args.filtered(OPT_c_isystem)) 3028 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3029 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3030 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3031 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3032 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3033 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3034 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3035 3036 // Add the internal paths from a driver that detects standard include paths. 3037 for (const auto *A : 3038 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3039 frontend::IncludeDirGroup Group = frontend::System; 3040 if (A->getOption().matches(OPT_internal_externc_isystem)) 3041 Group = frontend::ExternCSystem; 3042 Opts.AddPath(A->getValue(), Group, false, true); 3043 } 3044 3045 // Add the path prefixes which are implicitly treated as being system headers. 3046 for (const auto *A : 3047 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3048 Opts.AddSystemHeaderPrefix( 3049 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3050 3051 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3052 Opts.AddVFSOverlayFile(A->getValue()); 3053 3054 return Success; 3055 } 3056 3057 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 3058 const llvm::Triple &T, 3059 std::vector<std::string> &Includes, 3060 LangStandard::Kind LangStd) { 3061 // Set some properties which depend solely on the input kind; it would be nice 3062 // to move these to the language standard, and have the driver resolve the 3063 // input kind + language standard. 3064 // 3065 // FIXME: Perhaps a better model would be for a single source file to have 3066 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 3067 // simultaneously active? 3068 if (IK.getLanguage() == Language::Asm) { 3069 Opts.AsmPreprocessor = 1; 3070 } else if (IK.isObjectiveC()) { 3071 Opts.ObjC = 1; 3072 } 3073 3074 if (LangStd == LangStandard::lang_unspecified) { 3075 // Based on the base language, pick one. 3076 switch (IK.getLanguage()) { 3077 case Language::Unknown: 3078 case Language::LLVM_IR: 3079 llvm_unreachable("Invalid input kind!"); 3080 case Language::OpenCL: 3081 LangStd = LangStandard::lang_opencl10; 3082 break; 3083 case Language::OpenCLCXX: 3084 LangStd = LangStandard::lang_openclcpp; 3085 break; 3086 case Language::CUDA: 3087 LangStd = LangStandard::lang_cuda; 3088 break; 3089 case Language::Asm: 3090 case Language::C: 3091 #if defined(CLANG_DEFAULT_STD_C) 3092 LangStd = CLANG_DEFAULT_STD_C; 3093 #else 3094 // The PS4 uses C99 as the default C standard. 3095 if (T.isPS4()) 3096 LangStd = LangStandard::lang_gnu99; 3097 else 3098 LangStd = LangStandard::lang_gnu17; 3099 #endif 3100 break; 3101 case Language::ObjC: 3102 #if defined(CLANG_DEFAULT_STD_C) 3103 LangStd = CLANG_DEFAULT_STD_C; 3104 #else 3105 LangStd = LangStandard::lang_gnu11; 3106 #endif 3107 break; 3108 case Language::CXX: 3109 case Language::ObjCXX: 3110 #if defined(CLANG_DEFAULT_STD_CXX) 3111 LangStd = CLANG_DEFAULT_STD_CXX; 3112 #else 3113 LangStd = LangStandard::lang_gnucxx14; 3114 #endif 3115 break; 3116 case Language::RenderScript: 3117 LangStd = LangStandard::lang_c99; 3118 break; 3119 case Language::HIP: 3120 LangStd = LangStandard::lang_hip; 3121 break; 3122 } 3123 } 3124 3125 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3126 Opts.LangStd = LangStd; 3127 Opts.LineComment = Std.hasLineComments(); 3128 Opts.C99 = Std.isC99(); 3129 Opts.C11 = Std.isC11(); 3130 Opts.C17 = Std.isC17(); 3131 Opts.C2x = Std.isC2x(); 3132 Opts.CPlusPlus = Std.isCPlusPlus(); 3133 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 3134 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 3135 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 3136 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 3137 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 3138 Opts.GNUMode = Std.isGNUMode(); 3139 Opts.GNUCVersion = 0; 3140 Opts.HexFloats = Std.hasHexFloats(); 3141 Opts.ImplicitInt = Std.hasImplicitInt(); 3142 3143 Opts.CPlusPlusModules = Opts.CPlusPlus20; 3144 3145 // Set OpenCL Version. 3146 Opts.OpenCL = Std.isOpenCL(); 3147 if (LangStd == LangStandard::lang_opencl10) 3148 Opts.OpenCLVersion = 100; 3149 else if (LangStd == LangStandard::lang_opencl11) 3150 Opts.OpenCLVersion = 110; 3151 else if (LangStd == LangStandard::lang_opencl12) 3152 Opts.OpenCLVersion = 120; 3153 else if (LangStd == LangStandard::lang_opencl20) 3154 Opts.OpenCLVersion = 200; 3155 else if (LangStd == LangStandard::lang_opencl30) 3156 Opts.OpenCLVersion = 300; 3157 else if (LangStd == LangStandard::lang_openclcpp) 3158 Opts.OpenCLCPlusPlusVersion = 100; 3159 3160 // OpenCL has some additional defaults. 3161 if (Opts.OpenCL) { 3162 Opts.AltiVec = 0; 3163 Opts.ZVector = 0; 3164 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3165 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 3166 Opts.OpenCLPipe = Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3167 Opts.OpenCLGenericAddressSpace = 3168 Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3169 3170 // Include default header file for OpenCL. 3171 if (Opts.IncludeDefaultHeader) { 3172 if (Opts.DeclareOpenCLBuiltins) { 3173 // Only include base header file for builtin types and constants. 3174 Includes.push_back("opencl-c-base.h"); 3175 } else { 3176 Includes.push_back("opencl-c.h"); 3177 } 3178 } 3179 } 3180 3181 Opts.HIP = IK.getLanguage() == Language::HIP; 3182 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 3183 if (Opts.HIP) { 3184 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 3185 // fuses multiplication/addition instructions without contract flag from 3186 // device library functions in LLVM bitcode, which causes accuracy loss in 3187 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 3188 // For device library functions in bitcode to work, 'Strict' or 'Standard' 3189 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 3190 // FP contract option is used to allow fuse across statements in frontend 3191 // whereas respecting contract flag in backend. 3192 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3193 } else if (Opts.CUDA) { 3194 // Allow fuse across statements disregarding pragmas. 3195 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3196 } 3197 3198 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 3199 3200 // OpenCL and C++ both have bool, true, false keywords. 3201 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 3202 3203 // OpenCL has half keyword 3204 Opts.Half = Opts.OpenCL; 3205 } 3206 3207 /// Check if input file kind and language standard are compatible. 3208 static bool IsInputCompatibleWithStandard(InputKind IK, 3209 const LangStandard &S) { 3210 switch (IK.getLanguage()) { 3211 case Language::Unknown: 3212 case Language::LLVM_IR: 3213 llvm_unreachable("should not parse language flags for this input"); 3214 3215 case Language::C: 3216 case Language::ObjC: 3217 case Language::RenderScript: 3218 return S.getLanguage() == Language::C; 3219 3220 case Language::OpenCL: 3221 return S.getLanguage() == Language::OpenCL || 3222 S.getLanguage() == Language::OpenCLCXX; 3223 3224 case Language::OpenCLCXX: 3225 return S.getLanguage() == Language::OpenCLCXX; 3226 3227 case Language::CXX: 3228 case Language::ObjCXX: 3229 return S.getLanguage() == Language::CXX; 3230 3231 case Language::CUDA: 3232 // FIXME: What -std= values should be permitted for CUDA compilations? 3233 return S.getLanguage() == Language::CUDA || 3234 S.getLanguage() == Language::CXX; 3235 3236 case Language::HIP: 3237 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3238 3239 case Language::Asm: 3240 // Accept (and ignore) all -std= values. 3241 // FIXME: The -std= value is not ignored; it affects the tokenization 3242 // and preprocessing rules if we're preprocessing this asm input. 3243 return true; 3244 } 3245 3246 llvm_unreachable("unexpected input language"); 3247 } 3248 3249 /// Get language name for given input kind. 3250 static const StringRef GetInputKindName(InputKind IK) { 3251 switch (IK.getLanguage()) { 3252 case Language::C: 3253 return "C"; 3254 case Language::ObjC: 3255 return "Objective-C"; 3256 case Language::CXX: 3257 return "C++"; 3258 case Language::ObjCXX: 3259 return "Objective-C++"; 3260 case Language::OpenCL: 3261 return "OpenCL"; 3262 case Language::OpenCLCXX: 3263 return "C++ for OpenCL"; 3264 case Language::CUDA: 3265 return "CUDA"; 3266 case Language::RenderScript: 3267 return "RenderScript"; 3268 case Language::HIP: 3269 return "HIP"; 3270 3271 case Language::Asm: 3272 return "Asm"; 3273 case Language::LLVM_IR: 3274 return "LLVM IR"; 3275 3276 case Language::Unknown: 3277 break; 3278 } 3279 llvm_unreachable("unknown input language"); 3280 } 3281 3282 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3283 SmallVectorImpl<const char *> &Args, 3284 StringAllocator SA, 3285 const llvm::Triple &T) { 3286 OptSpecifier StdOpt; 3287 switch (Opts.LangStd) { 3288 case LangStandard::lang_opencl10: 3289 case LangStandard::lang_opencl11: 3290 case LangStandard::lang_opencl12: 3291 case LangStandard::lang_opencl20: 3292 case LangStandard::lang_opencl30: 3293 case LangStandard::lang_openclcpp: 3294 StdOpt = OPT_cl_std_EQ; 3295 break; 3296 default: 3297 StdOpt = OPT_std_EQ; 3298 break; 3299 } 3300 3301 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3302 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3303 3304 if (Opts.IncludeDefaultHeader) 3305 GenerateArg(Args, OPT_finclude_default_header, SA); 3306 if (Opts.DeclareOpenCLBuiltins) 3307 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3308 3309 const LangOptions *LangOpts = &Opts; 3310 3311 #define LANG_OPTION_WITH_MARSHALLING( \ 3312 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3313 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3314 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3315 MERGER, EXTRACTOR, TABLE_INDEX) \ 3316 GENERATE_OPTION_WITH_MARSHALLING( \ 3317 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3318 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3319 #include "clang/Driver/Options.inc" 3320 #undef LANG_OPTION_WITH_MARSHALLING 3321 3322 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3323 3324 if (Opts.ObjC) { 3325 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3326 3327 if (Opts.GC == LangOptions::GCOnly) 3328 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3329 else if (Opts.GC == LangOptions::HybridGC) 3330 GenerateArg(Args, OPT_fobjc_gc, SA); 3331 else if (Opts.ObjCAutoRefCount == 1) 3332 GenerateArg(Args, OPT_fobjc_arc, SA); 3333 3334 if (Opts.ObjCWeakRuntime) 3335 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3336 3337 if (Opts.ObjCWeak) 3338 GenerateArg(Args, OPT_fobjc_weak, SA); 3339 3340 if (Opts.ObjCSubscriptingLegacyRuntime) 3341 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3342 } 3343 3344 if (Opts.GNUCVersion != 0) { 3345 unsigned Major = Opts.GNUCVersion / 100 / 100; 3346 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3347 unsigned Patch = Opts.GNUCVersion % 100; 3348 GenerateArg(Args, OPT_fgnuc_version_EQ, 3349 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3350 } 3351 3352 if (Opts.IgnoreXCOFFVisibility) 3353 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3354 3355 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3356 GenerateArg(Args, OPT_ftrapv, SA); 3357 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3358 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3359 GenerateArg(Args, OPT_fwrapv, SA); 3360 } 3361 3362 if (Opts.MSCompatibilityVersion != 0) { 3363 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3364 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3365 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3366 GenerateArg(Args, OPT_fms_compatibility_version, 3367 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3368 } 3369 3370 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3371 if (!Opts.Trigraphs) 3372 GenerateArg(Args, OPT_fno_trigraphs, SA); 3373 } else { 3374 if (Opts.Trigraphs) 3375 GenerateArg(Args, OPT_ftrigraphs, SA); 3376 } 3377 3378 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3379 GenerateArg(Args, OPT_fblocks, SA); 3380 3381 if (Opts.ConvergentFunctions && 3382 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3383 GenerateArg(Args, OPT_fconvergent_functions, SA); 3384 3385 if (Opts.NoBuiltin && !Opts.Freestanding) 3386 GenerateArg(Args, OPT_fno_builtin, SA); 3387 3388 if (!Opts.NoBuiltin) 3389 for (const auto &Func : Opts.NoBuiltinFuncs) 3390 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3391 3392 if (Opts.LongDoubleSize == 128) 3393 GenerateArg(Args, OPT_mlong_double_128, SA); 3394 else if (Opts.LongDoubleSize == 64) 3395 GenerateArg(Args, OPT_mlong_double_64, SA); 3396 3397 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3398 3399 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3400 // '-fopenmp-targets='. 3401 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3402 GenerateArg(Args, OPT_fopenmp, SA); 3403 3404 if (Opts.OpenMP != 50) 3405 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3406 3407 if (!Opts.OpenMPUseTLS) 3408 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3409 3410 if (Opts.OpenMPIsDevice) 3411 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3412 3413 if (Opts.OpenMPIRBuilder) 3414 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3415 } 3416 3417 if (Opts.OpenMPSimd) { 3418 GenerateArg(Args, OPT_fopenmp_simd, SA); 3419 3420 if (Opts.OpenMP != 50) 3421 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3422 } 3423 3424 if (Opts.OpenMPCUDANumSMs != 0) 3425 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3426 Twine(Opts.OpenMPCUDANumSMs), SA); 3427 3428 if (Opts.OpenMPCUDABlocksPerSM != 0) 3429 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3430 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3431 3432 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3433 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3434 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3435 3436 if (!Opts.OMPTargetTriples.empty()) { 3437 std::string Targets; 3438 llvm::raw_string_ostream OS(Targets); 3439 llvm::interleave( 3440 Opts.OMPTargetTriples, OS, 3441 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3442 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3443 } 3444 3445 if (!Opts.OMPHostIRFile.empty()) 3446 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3447 3448 if (Opts.OpenMPCUDAMode) 3449 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3450 3451 if (Opts.OpenMPCUDATargetParallel) 3452 GenerateArg(Args, OPT_fopenmp_cuda_parallel_target_regions, SA); 3453 3454 if (Opts.OpenMPCUDAForceFullRuntime) 3455 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3456 3457 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3458 // generated from CodeGenOptions. 3459 3460 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3461 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3462 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3463 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3464 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3465 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3466 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3467 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3468 3469 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3470 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3471 3472 // Conflating '-fsanitize-system-blacklist' and '-fsanitize-blacklist'. 3473 for (const std::string &F : Opts.NoSanitizeFiles) 3474 GenerateArg(Args, OPT_fsanitize_blacklist, F, SA); 3475 3476 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3477 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3478 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3479 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3480 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3481 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3482 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3483 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3484 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3485 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3486 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3487 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3488 3489 if (Opts.getSignReturnAddressScope() == 3490 LangOptions::SignReturnAddressScopeKind::All) 3491 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3492 else if (Opts.getSignReturnAddressScope() == 3493 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3494 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3495 3496 if (Opts.getSignReturnAddressKey() == 3497 LangOptions::SignReturnAddressKeyKind::BKey) 3498 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3499 } 3500 3501 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3502 InputKind IK, const llvm::Triple &T, 3503 std::vector<std::string> &Includes, 3504 DiagnosticsEngine &Diags) { 3505 unsigned NumErrorsBefore = Diags.getNumErrors(); 3506 3507 // FIXME: Cleanup per-file based stuff. 3508 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3509 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3510 LangStd = LangStandard::getLangKind(A->getValue()); 3511 if (LangStd == LangStandard::lang_unspecified) { 3512 Diags.Report(diag::err_drv_invalid_value) 3513 << A->getAsString(Args) << A->getValue(); 3514 // Report supported standards with short description. 3515 for (unsigned KindValue = 0; 3516 KindValue != LangStandard::lang_unspecified; 3517 ++KindValue) { 3518 const LangStandard &Std = LangStandard::getLangStandardForKind( 3519 static_cast<LangStandard::Kind>(KindValue)); 3520 if (IsInputCompatibleWithStandard(IK, Std)) { 3521 auto Diag = Diags.Report(diag::note_drv_use_standard); 3522 Diag << Std.getName() << Std.getDescription(); 3523 unsigned NumAliases = 0; 3524 #define LANGSTANDARD(id, name, lang, desc, features) 3525 #define LANGSTANDARD_ALIAS(id, alias) \ 3526 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3527 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3528 #include "clang/Basic/LangStandards.def" 3529 Diag << NumAliases; 3530 #define LANGSTANDARD(id, name, lang, desc, features) 3531 #define LANGSTANDARD_ALIAS(id, alias) \ 3532 if (KindValue == LangStandard::lang_##id) Diag << alias; 3533 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3534 #include "clang/Basic/LangStandards.def" 3535 } 3536 } 3537 } else { 3538 // Valid standard, check to make sure language and standard are 3539 // compatible. 3540 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3541 if (!IsInputCompatibleWithStandard(IK, Std)) { 3542 Diags.Report(diag::err_drv_argument_not_allowed_with) 3543 << A->getAsString(Args) << GetInputKindName(IK); 3544 } 3545 } 3546 } 3547 3548 // -cl-std only applies for OpenCL language standards. 3549 // Override the -std option in this case. 3550 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3551 LangStandard::Kind OpenCLLangStd 3552 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3553 .Cases("cl", "CL", LangStandard::lang_opencl10) 3554 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3555 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3556 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3557 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3558 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3559 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 3560 .Default(LangStandard::lang_unspecified); 3561 3562 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3563 Diags.Report(diag::err_drv_invalid_value) 3564 << A->getAsString(Args) << A->getValue(); 3565 } 3566 else 3567 LangStd = OpenCLLangStd; 3568 } 3569 3570 // These need to be parsed now. They are used to set OpenCL defaults. 3571 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3572 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3573 3574 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd); 3575 3576 // The key paths of codegen options defined in Options.td start with 3577 // "LangOpts->". Let's provide the expected variable name and type. 3578 LangOptions *LangOpts = &Opts; 3579 bool Success = true; 3580 3581 #define LANG_OPTION_WITH_MARSHALLING( \ 3582 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3583 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3584 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3585 MERGER, EXTRACTOR, TABLE_INDEX) \ 3586 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 3587 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3588 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 3589 MERGER, TABLE_INDEX) 3590 #include "clang/Driver/Options.inc" 3591 #undef LANG_OPTION_WITH_MARSHALLING 3592 3593 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3594 StringRef Name = A->getValue(); 3595 if (Name == "full" || Name == "branch") { 3596 Opts.CFProtectionBranch = 1; 3597 } 3598 } 3599 3600 if (Opts.ObjC) { 3601 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3602 StringRef value = arg->getValue(); 3603 if (Opts.ObjCRuntime.tryParse(value)) 3604 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3605 } 3606 3607 if (Args.hasArg(OPT_fobjc_gc_only)) 3608 Opts.setGC(LangOptions::GCOnly); 3609 else if (Args.hasArg(OPT_fobjc_gc)) 3610 Opts.setGC(LangOptions::HybridGC); 3611 else if (Args.hasArg(OPT_fobjc_arc)) { 3612 Opts.ObjCAutoRefCount = 1; 3613 if (!Opts.ObjCRuntime.allowsARC()) 3614 Diags.Report(diag::err_arc_unsupported_on_runtime); 3615 } 3616 3617 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3618 // whether the feature is actually enabled. This is predominantly 3619 // determined by -fobjc-runtime, but we allow it to be overridden 3620 // from the command line for testing purposes. 3621 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3622 Opts.ObjCWeakRuntime = 1; 3623 else 3624 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3625 3626 // ObjCWeak determines whether __weak is actually enabled. 3627 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3628 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3629 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3630 assert(!Opts.ObjCWeak); 3631 } else if (Opts.getGC() != LangOptions::NonGC) { 3632 Diags.Report(diag::err_objc_weak_with_gc); 3633 } else if (!Opts.ObjCWeakRuntime) { 3634 Diags.Report(diag::err_objc_weak_unsupported); 3635 } else { 3636 Opts.ObjCWeak = 1; 3637 } 3638 } else if (Opts.ObjCAutoRefCount) { 3639 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3640 } 3641 3642 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3643 Opts.ObjCSubscriptingLegacyRuntime = 3644 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3645 } 3646 3647 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3648 // Check that the version has 1 to 3 components and the minor and patch 3649 // versions fit in two decimal digits. 3650 VersionTuple GNUCVer; 3651 bool Invalid = GNUCVer.tryParse(A->getValue()); 3652 unsigned Major = GNUCVer.getMajor(); 3653 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3654 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3655 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3656 Diags.Report(diag::err_drv_invalid_value) 3657 << A->getAsString(Args) << A->getValue(); 3658 } 3659 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3660 } 3661 3662 // In AIX OS, the -mignore-xcoff-visibility is enable by default if there is 3663 // no -fvisibility=* option. 3664 // This is the reason why '-fvisibility' needs to be always generated: 3665 // its absence implies '-mignore-xcoff-visibility'. 3666 // 3667 // Suppose the original cc1 command line does contain '-fvisibility default': 3668 // '-mignore-xcoff-visibility' should not be implied. 3669 // * If '-fvisibility' is not generated (as most options with default values 3670 // don't), its absence would imply '-mignore-xcoff-visibility'. This changes 3671 // the command line semantics. 3672 // * If '-fvisibility' is generated regardless of its presence and value, 3673 // '-mignore-xcoff-visibility' won't be implied and the command line 3674 // semantics are kept intact. 3675 // 3676 // When the original cc1 command line does **not** contain '-fvisibility', 3677 // '-mignore-xcoff-visibility' is implied. The generated command line will 3678 // contain both '-fvisibility default' and '-mignore-xcoff-visibility' and 3679 // subsequent calls to `CreateFromArgs`/`generateCC1CommandLine` will always 3680 // produce the same arguments. 3681 3682 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 3683 !Args.hasArg(OPT_fvisibility))) 3684 Opts.IgnoreXCOFFVisibility = 1; 3685 3686 if (Args.hasArg(OPT_ftrapv)) { 3687 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3688 // Set the handler, if one is specified. 3689 Opts.OverflowHandler = 3690 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3691 } 3692 else if (Args.hasArg(OPT_fwrapv)) 3693 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3694 3695 Opts.MSCompatibilityVersion = 0; 3696 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3697 VersionTuple VT; 3698 if (VT.tryParse(A->getValue())) 3699 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3700 << A->getValue(); 3701 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3702 VT.getMinor().getValueOr(0) * 100000 + 3703 VT.getSubminor().getValueOr(0); 3704 } 3705 3706 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3707 // is specified, or -std is set to a conforming mode. 3708 // Trigraphs are disabled by default in c++1z onwards. 3709 // For z/OS, trigraphs are enabled by default (without regard to the above). 3710 Opts.Trigraphs = 3711 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3712 Opts.Trigraphs = 3713 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3714 3715 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3716 && Opts.OpenCLVersion == 200); 3717 3718 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3719 Opts.SYCLIsDevice || 3720 Args.hasArg(OPT_fconvergent_functions); 3721 3722 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3723 if (!Opts.NoBuiltin) 3724 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3725 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3726 ? 128 3727 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3728 if (Opts.FastRelaxedMath) 3729 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3730 llvm::sort(Opts.ModuleFeatures); 3731 3732 // -mrtd option 3733 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3734 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3735 Diags.Report(diag::err_drv_argument_not_allowed_with) 3736 << A->getSpelling() << "-fdefault-calling-conv"; 3737 else { 3738 if (T.getArch() != llvm::Triple::x86) 3739 Diags.Report(diag::err_drv_argument_not_allowed_with) 3740 << A->getSpelling() << T.getTriple(); 3741 else 3742 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3743 } 3744 } 3745 3746 // Check if -fopenmp is specified and set default version to 5.0. 3747 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3748 // Check if -fopenmp-simd is specified. 3749 bool IsSimdSpecified = 3750 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3751 /*Default=*/false); 3752 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3753 Opts.OpenMPUseTLS = 3754 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3755 Opts.OpenMPIsDevice = 3756 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3757 Opts.OpenMPIRBuilder = 3758 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3759 bool IsTargetSpecified = 3760 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3761 3762 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3763 3764 if (Opts.OpenMP || Opts.OpenMPSimd) { 3765 if (int Version = getLastArgIntValue( 3766 Args, OPT_fopenmp_version_EQ, 3767 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3768 Opts.OpenMP = Version; 3769 // Provide diagnostic when a given target is not expected to be an OpenMP 3770 // device or host. 3771 if (!Opts.OpenMPIsDevice) { 3772 switch (T.getArch()) { 3773 default: 3774 break; 3775 // Add unsupported host targets here: 3776 case llvm::Triple::nvptx: 3777 case llvm::Triple::nvptx64: 3778 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3779 break; 3780 } 3781 } 3782 } 3783 3784 // Set the flag to prevent the implementation from emitting device exception 3785 // handling code for those requiring so. 3786 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3787 Opts.OpenCLCPlusPlus) { 3788 Opts.Exceptions = 0; 3789 Opts.CXXExceptions = 0; 3790 } 3791 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3792 Opts.OpenMPCUDANumSMs = 3793 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3794 Opts.OpenMPCUDANumSMs, Diags); 3795 Opts.OpenMPCUDABlocksPerSM = 3796 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3797 Opts.OpenMPCUDABlocksPerSM, Diags); 3798 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3799 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3800 Opts.OpenMPCUDAReductionBufNum, Diags); 3801 } 3802 3803 // Get the OpenMP target triples if any. 3804 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3805 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3806 auto getArchPtrSize = [](const llvm::Triple &T) { 3807 if (T.isArch16Bit()) 3808 return Arch16Bit; 3809 if (T.isArch32Bit()) 3810 return Arch32Bit; 3811 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3812 return Arch64Bit; 3813 }; 3814 3815 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3816 llvm::Triple TT(A->getValue(i)); 3817 3818 if (TT.getArch() == llvm::Triple::UnknownArch || 3819 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3820 TT.getArch() == llvm::Triple::nvptx || 3821 TT.getArch() == llvm::Triple::nvptx64 || 3822 TT.getArch() == llvm::Triple::amdgcn || 3823 TT.getArch() == llvm::Triple::x86 || 3824 TT.getArch() == llvm::Triple::x86_64)) 3825 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3826 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3827 Diags.Report(diag::err_drv_incompatible_omp_arch) 3828 << A->getValue(i) << T.str(); 3829 else 3830 Opts.OMPTargetTriples.push_back(TT); 3831 } 3832 } 3833 3834 // Get OpenMP host file path if any and report if a non existent file is 3835 // found 3836 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3837 Opts.OMPHostIRFile = A->getValue(); 3838 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3839 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3840 << Opts.OMPHostIRFile; 3841 } 3842 3843 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3844 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3845 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3846 3847 // Set CUDA support for parallel execution of target regions for OpenMP target 3848 // NVPTX/AMDGCN if specified in options. 3849 Opts.OpenMPCUDATargetParallel = 3850 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3851 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 3852 3853 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3854 Opts.OpenMPCUDAForceFullRuntime = 3855 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3856 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3857 3858 // FIXME: Eliminate this dependency. 3859 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3860 OptSize = getOptimizationLevelSize(Args); 3861 Opts.Optimize = Opt != 0; 3862 Opts.OptimizeSize = OptSize != 0; 3863 3864 // This is the __NO_INLINE__ define, which just depends on things like the 3865 // optimization level and -fno-inline, not actually whether the backend has 3866 // inlining enabled. 3867 Opts.NoInlineDefine = !Opts.Optimize; 3868 if (Arg *InlineArg = Args.getLastArg( 3869 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3870 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3871 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3872 Opts.NoInlineDefine = true; 3873 3874 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3875 StringRef Val = A->getValue(); 3876 if (Val == "fast") 3877 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3878 else if (Val == "on") 3879 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3880 else if (Val == "off") 3881 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3882 else if (Val == "fast-honor-pragmas") 3883 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3884 else 3885 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3886 } 3887 3888 // Parse -fsanitize= arguments. 3889 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3890 Diags, Opts.Sanitize); 3891 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3892 std::vector<std::string> systemBlacklists = 3893 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3894 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3895 systemBlacklists.begin(), systemBlacklists.end()); 3896 3897 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3898 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3899 3900 StringRef Ver = A->getValue(); 3901 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3902 unsigned Major, Minor = 0; 3903 3904 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3905 // y or y.0 (4 <= y <= current version). 3906 if (!VerParts.first.startswith("0") && 3907 !VerParts.first.getAsInteger(10, Major) && 3908 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3909 (Major == 3 ? VerParts.second.size() == 1 && 3910 !VerParts.second.getAsInteger(10, Minor) 3911 : VerParts.first.size() == Ver.size() || 3912 VerParts.second == "0")) { 3913 // Got a valid version number. 3914 if (Major == 3 && Minor <= 8) 3915 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3916 else if (Major <= 4) 3917 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3918 else if (Major <= 6) 3919 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3920 else if (Major <= 7) 3921 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3922 else if (Major <= 9) 3923 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3924 else if (Major <= 11) 3925 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 3926 } else if (Ver != "latest") { 3927 Diags.Report(diag::err_drv_invalid_value) 3928 << A->getAsString(Args) << A->getValue(); 3929 } 3930 } 3931 3932 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3933 StringRef SignScope = A->getValue(); 3934 3935 if (SignScope.equals_lower("none")) 3936 Opts.setSignReturnAddressScope( 3937 LangOptions::SignReturnAddressScopeKind::None); 3938 else if (SignScope.equals_lower("all")) 3939 Opts.setSignReturnAddressScope( 3940 LangOptions::SignReturnAddressScopeKind::All); 3941 else if (SignScope.equals_lower("non-leaf")) 3942 Opts.setSignReturnAddressScope( 3943 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3944 else 3945 Diags.Report(diag::err_drv_invalid_value) 3946 << A->getAsString(Args) << SignScope; 3947 3948 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3949 StringRef SignKey = A->getValue(); 3950 if (!SignScope.empty() && !SignKey.empty()) { 3951 if (SignKey.equals_lower("a_key")) 3952 Opts.setSignReturnAddressKey( 3953 LangOptions::SignReturnAddressKeyKind::AKey); 3954 else if (SignKey.equals_lower("b_key")) 3955 Opts.setSignReturnAddressKey( 3956 LangOptions::SignReturnAddressKeyKind::BKey); 3957 else 3958 Diags.Report(diag::err_drv_invalid_value) 3959 << A->getAsString(Args) << SignKey; 3960 } 3961 } 3962 } 3963 3964 return Success && Diags.getNumErrors() == NumErrorsBefore; 3965 } 3966 3967 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3968 switch (Action) { 3969 case frontend::ASTDeclList: 3970 case frontend::ASTDump: 3971 case frontend::ASTPrint: 3972 case frontend::ASTView: 3973 case frontend::EmitAssembly: 3974 case frontend::EmitBC: 3975 case frontend::EmitHTML: 3976 case frontend::EmitLLVM: 3977 case frontend::EmitLLVMOnly: 3978 case frontend::EmitCodeGenOnly: 3979 case frontend::EmitObj: 3980 case frontend::FixIt: 3981 case frontend::GenerateModule: 3982 case frontend::GenerateModuleInterface: 3983 case frontend::GenerateHeaderModule: 3984 case frontend::GeneratePCH: 3985 case frontend::GenerateInterfaceStubs: 3986 case frontend::ParseSyntaxOnly: 3987 case frontend::ModuleFileInfo: 3988 case frontend::VerifyPCH: 3989 case frontend::PluginAction: 3990 case frontend::RewriteObjC: 3991 case frontend::RewriteTest: 3992 case frontend::RunAnalysis: 3993 case frontend::TemplightDump: 3994 case frontend::MigrateSource: 3995 return false; 3996 3997 case frontend::DumpCompilerOptions: 3998 case frontend::DumpRawTokens: 3999 case frontend::DumpTokens: 4000 case frontend::InitOnly: 4001 case frontend::PrintPreamble: 4002 case frontend::PrintPreprocessedInput: 4003 case frontend::RewriteMacros: 4004 case frontend::RunPreprocessorOnly: 4005 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4006 return true; 4007 } 4008 llvm_unreachable("invalid frontend action"); 4009 } 4010 4011 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4012 SmallVectorImpl<const char *> &Args, 4013 CompilerInvocation::StringAllocator SA, 4014 const LangOptions &LangOpts, 4015 const FrontendOptions &FrontendOpts, 4016 const CodeGenOptions &CodeGenOpts) { 4017 PreprocessorOptions *PreprocessorOpts = &Opts; 4018 4019 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4020 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4021 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4022 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4023 MERGER, EXTRACTOR, TABLE_INDEX) \ 4024 GENERATE_OPTION_WITH_MARSHALLING( \ 4025 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4026 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4027 #include "clang/Driver/Options.inc" 4028 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4029 4030 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4031 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4032 4033 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4034 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4035 4036 for (const auto &MP : Opts.MacroPrefixMap) 4037 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 4038 4039 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4040 GenerateArg(Args, OPT_preamble_bytes_EQ, 4041 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4042 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4043 SA); 4044 4045 for (const auto &M : Opts.Macros) { 4046 // Don't generate __CET__ macro definitions. They are implied by the 4047 // -fcf-protection option that is generated elsewhere. 4048 if (M.first == "__CET__=1" && !M.second && 4049 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4050 continue; 4051 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4052 !CodeGenOpts.CFProtectionBranch) 4053 continue; 4054 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4055 CodeGenOpts.CFProtectionBranch) 4056 continue; 4057 4058 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4059 } 4060 4061 for (const auto &I : Opts.Includes) { 4062 // Don't generate OpenCL includes. They are implied by other flags that are 4063 // generated elsewhere. 4064 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4065 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4066 I == "opencl-c.h")) 4067 continue; 4068 4069 GenerateArg(Args, OPT_include, I, SA); 4070 } 4071 4072 for (const auto &CI : Opts.ChainedIncludes) 4073 GenerateArg(Args, OPT_chain_include, CI, SA); 4074 4075 for (const auto &RF : Opts.RemappedFiles) 4076 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4077 4078 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4079 // generated elsewhere. 4080 } 4081 4082 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4083 DiagnosticsEngine &Diags, 4084 frontend::ActionKind Action, 4085 const FrontendOptions &FrontendOpts) { 4086 PreprocessorOptions *PreprocessorOpts = &Opts; 4087 bool Success = true; 4088 4089 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4090 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4091 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4092 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4093 MERGER, EXTRACTOR, TABLE_INDEX) \ 4094 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4095 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4096 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4097 MERGER, TABLE_INDEX) 4098 #include "clang/Driver/Options.inc" 4099 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4100 4101 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4102 Args.hasArg(OPT_pch_through_hdrstop_use); 4103 4104 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4105 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4106 4107 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4108 auto Split = StringRef(A).split('='); 4109 Opts.MacroPrefixMap.insert( 4110 {std::string(Split.first), std::string(Split.second)}); 4111 } 4112 4113 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4114 StringRef Value(A->getValue()); 4115 size_t Comma = Value.find(','); 4116 unsigned Bytes = 0; 4117 unsigned EndOfLine = 0; 4118 4119 if (Comma == StringRef::npos || 4120 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4121 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4122 Diags.Report(diag::err_drv_preamble_format); 4123 else { 4124 Opts.PrecompiledPreambleBytes.first = Bytes; 4125 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4126 } 4127 } 4128 4129 // Add the __CET__ macro if a CFProtection option is set. 4130 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4131 StringRef Name = A->getValue(); 4132 if (Name == "branch") 4133 Opts.addMacroDef("__CET__=1"); 4134 else if (Name == "return") 4135 Opts.addMacroDef("__CET__=2"); 4136 else if (Name == "full") 4137 Opts.addMacroDef("__CET__=3"); 4138 } 4139 4140 // Add macros from the command line. 4141 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4142 if (A->getOption().matches(OPT_D)) 4143 Opts.addMacroDef(A->getValue()); 4144 else 4145 Opts.addMacroUndef(A->getValue()); 4146 } 4147 4148 // Add the ordered list of -includes. 4149 for (const auto *A : Args.filtered(OPT_include)) 4150 Opts.Includes.emplace_back(A->getValue()); 4151 4152 for (const auto *A : Args.filtered(OPT_chain_include)) 4153 Opts.ChainedIncludes.emplace_back(A->getValue()); 4154 4155 for (const auto *A : Args.filtered(OPT_remap_file)) { 4156 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4157 4158 if (Split.second.empty()) { 4159 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4160 continue; 4161 } 4162 4163 Opts.addRemappedFile(Split.first, Split.second); 4164 } 4165 4166 // Always avoid lexing editor placeholders when we're just running the 4167 // preprocessor as we never want to emit the 4168 // "editor placeholder in source file" error in PP only mode. 4169 if (isStrictlyPreprocessorAction(Action)) 4170 Opts.LexEditorPlaceholders = false; 4171 4172 return Success; 4173 } 4174 4175 static void GeneratePreprocessorOutputArgs( 4176 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4177 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4178 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4179 4180 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4181 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4182 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4183 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4184 MERGER, EXTRACTOR, TABLE_INDEX) \ 4185 GENERATE_OPTION_WITH_MARSHALLING( \ 4186 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4187 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4188 #include "clang/Driver/Options.inc" 4189 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4190 4191 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4192 if (Generate_dM) 4193 GenerateArg(Args, OPT_dM, SA); 4194 if (!Generate_dM && Opts.ShowMacros) 4195 GenerateArg(Args, OPT_dD, SA); 4196 } 4197 4198 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4199 ArgList &Args, DiagnosticsEngine &Diags, 4200 frontend::ActionKind Action) { 4201 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4202 unsigned NumErrorsBefore = Diags.getNumErrors(); 4203 bool Success = true; 4204 4205 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4206 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4207 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4208 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4209 MERGER, EXTRACTOR, TABLE_INDEX) \ 4210 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4211 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4212 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4213 MERGER, TABLE_INDEX) 4214 #include "clang/Driver/Options.inc" 4215 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4216 4217 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4218 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4219 4220 return Success && Diags.getNumErrors() == NumErrorsBefore; 4221 } 4222 4223 static void GenerateTargetArgs(const TargetOptions &Opts, 4224 SmallVectorImpl<const char *> &Args, 4225 CompilerInvocation::StringAllocator SA) { 4226 const TargetOptions *TargetOpts = &Opts; 4227 #define TARGET_OPTION_WITH_MARSHALLING( \ 4228 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4229 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4230 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4231 MERGER, EXTRACTOR, TABLE_INDEX) \ 4232 GENERATE_OPTION_WITH_MARSHALLING( \ 4233 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4234 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4235 #include "clang/Driver/Options.inc" 4236 #undef TARGET_OPTION_WITH_MARSHALLING 4237 4238 if (!Opts.SDKVersion.empty()) 4239 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4240 SA); 4241 } 4242 4243 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4244 DiagnosticsEngine &Diags) { 4245 TargetOptions *TargetOpts = &Opts; 4246 unsigned NumErrorsBefore = Diags.getNumErrors(); 4247 bool Success = true; 4248 4249 #define TARGET_OPTION_WITH_MARSHALLING( \ 4250 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4251 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4252 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4253 MERGER, EXTRACTOR, TABLE_INDEX) \ 4254 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4255 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4256 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4257 MERGER, TABLE_INDEX) 4258 #include "clang/Driver/Options.inc" 4259 #undef TARGET_OPTION_WITH_MARSHALLING 4260 4261 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4262 llvm::VersionTuple Version; 4263 if (Version.tryParse(A->getValue())) 4264 Diags.Report(diag::err_drv_invalid_value) 4265 << A->getAsString(Args) << A->getValue(); 4266 else 4267 Opts.SDKVersion = Version; 4268 } 4269 4270 return Success && Diags.getNumErrors() == NumErrorsBefore; 4271 } 4272 4273 bool CompilerInvocation::CreateFromArgsImpl( 4274 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4275 DiagnosticsEngine &Diags, const char *Argv0) { 4276 bool Success = true; 4277 4278 // Parse the arguments. 4279 const OptTable &Opts = getDriverOptTable(); 4280 const unsigned IncludedFlagsBitmask = options::CC1Option; 4281 unsigned MissingArgIndex, MissingArgCount; 4282 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4283 MissingArgCount, IncludedFlagsBitmask); 4284 LangOptions &LangOpts = *Res.getLangOpts(); 4285 4286 // Check for missing argument error. 4287 if (MissingArgCount) { 4288 Diags.Report(diag::err_drv_missing_argument) 4289 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4290 Success = false; 4291 } 4292 4293 // Issue errors on unknown arguments. 4294 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4295 auto ArgString = A->getAsString(Args); 4296 std::string Nearest; 4297 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4298 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4299 else 4300 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4301 << ArgString << Nearest; 4302 Success = false; 4303 } 4304 4305 Success &= ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4306 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4307 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4308 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4309 /*DefaultDiagColor=*/false); 4310 Success &= ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 4311 LangOpts.IsHeaderFile); 4312 // FIXME: We shouldn't have to pass the DashX option around here 4313 InputKind DashX = Res.getFrontendOpts().DashX; 4314 Success &= ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4315 llvm::Triple T(Res.getTargetOpts().Triple); 4316 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4317 Res.getFileSystemOpts().WorkingDir); 4318 if (DashX.getFormat() == InputKind::Precompiled || 4319 DashX.getLanguage() == Language::LLVM_IR) { 4320 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 4321 // PassManager in BackendUtil.cpp. They need to be initializd no matter 4322 // what the input type is. 4323 if (Args.hasArg(OPT_fobjc_arc)) 4324 LangOpts.ObjCAutoRefCount = 1; 4325 // PIClevel and PIELevel are needed during code generation and this should be 4326 // set regardless of the input type. 4327 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 4328 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 4329 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4330 Diags, LangOpts.Sanitize); 4331 } else { 4332 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 4333 // FIXME: Should we really be calling this for an Language::Asm input? 4334 Success &= ParseLangArgs(LangOpts, Args, DashX, T, 4335 Res.getPreprocessorOpts().Includes, Diags); 4336 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4337 LangOpts.ObjCExceptions = 1; 4338 } 4339 4340 if (LangOpts.CUDA) { 4341 // During CUDA device-side compilation, the aux triple is the 4342 // triple used for host compilation. 4343 if (LangOpts.CUDAIsDevice) 4344 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4345 } 4346 4347 // Set the triple of the host for OpenMP device compile. 4348 if (LangOpts.OpenMPIsDevice) 4349 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4350 4351 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4352 Res.getFrontendOpts().OutputFile, LangOpts); 4353 4354 // FIXME: Override value name discarding when asan or msan is used because the 4355 // backend passes depend on the name of the alloca in order to print out 4356 // names. 4357 Res.getCodeGenOpts().DiscardValueNames &= 4358 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4359 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4360 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4361 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4362 4363 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4364 Res.getFrontendOpts().ProgramAction, 4365 Res.getFrontendOpts()); 4366 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4367 Res.getFrontendOpts().ProgramAction); 4368 4369 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4370 Res.getFrontendOpts().ProgramAction, 4371 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4372 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4373 Res.getDependencyOutputOpts().Targets.empty()) { 4374 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4375 Success = false; 4376 } 4377 4378 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4379 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4380 !Res.getLangOpts()->Sanitize.empty()) { 4381 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4382 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4383 } 4384 4385 // Store the command-line for using in the CodeView backend. 4386 Res.getCodeGenOpts().Argv0 = Argv0; 4387 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 4388 4389 Success &= FixupInvocation(Res, Diags, Args, DashX); 4390 4391 return Success; 4392 } 4393 4394 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4395 ArrayRef<const char *> CommandLineArgs, 4396 DiagnosticsEngine &Diags, 4397 const char *Argv0) { 4398 CompilerInvocation DummyInvocation; 4399 4400 return RoundTrip( 4401 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4402 DiagnosticsEngine &Diags, const char *Argv0) { 4403 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4404 }, 4405 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4406 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4407 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4408 } 4409 4410 std::string CompilerInvocation::getModuleHash() const { 4411 // Note: For QoI reasons, the things we use as a hash here should all be 4412 // dumped via the -module-info flag. 4413 using llvm::hash_code; 4414 using llvm::hash_value; 4415 using llvm::hash_combine; 4416 using llvm::hash_combine_range; 4417 4418 // Start the signature with the compiler version. 4419 // FIXME: We'd rather use something more cryptographically sound than 4420 // CityHash, but this will do for now. 4421 hash_code code = hash_value(getClangFullRepositoryVersion()); 4422 4423 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4424 // and getClangFullRepositoryVersion() doesn't include git revision. 4425 code = hash_combine(code, serialization::VERSION_MAJOR, 4426 serialization::VERSION_MINOR); 4427 4428 // Extend the signature with the language options 4429 #define LANGOPT(Name, Bits, Default, Description) \ 4430 code = hash_combine(code, LangOpts->Name); 4431 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4432 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 4433 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4434 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4435 #include "clang/Basic/LangOptions.def" 4436 4437 for (StringRef Feature : LangOpts->ModuleFeatures) 4438 code = hash_combine(code, Feature); 4439 4440 code = hash_combine(code, LangOpts->ObjCRuntime); 4441 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 4442 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 4443 4444 // Extend the signature with the target options. 4445 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 4446 TargetOpts->TuneCPU, TargetOpts->ABI); 4447 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 4448 code = hash_combine(code, FeatureAsWritten); 4449 4450 // Extend the signature with preprocessor options. 4451 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4452 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4453 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 4454 4455 for (const auto &I : getPreprocessorOpts().Macros) { 4456 // If we're supposed to ignore this macro for the purposes of modules, 4457 // don't put it into the hash. 4458 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4459 // Check whether we're ignoring this macro. 4460 StringRef MacroDef = I.first; 4461 if (hsOpts.ModulesIgnoreMacros.count( 4462 llvm::CachedHashString(MacroDef.split('=').first))) 4463 continue; 4464 } 4465 4466 code = hash_combine(code, I.first, I.second); 4467 } 4468 4469 // Extend the signature with the sysroot and other header search options. 4470 code = hash_combine(code, hsOpts.Sysroot, 4471 hsOpts.ModuleFormat, 4472 hsOpts.UseDebugInfo, 4473 hsOpts.UseBuiltinIncludes, 4474 hsOpts.UseStandardSystemIncludes, 4475 hsOpts.UseStandardCXXIncludes, 4476 hsOpts.UseLibcxx, 4477 hsOpts.ModulesValidateDiagnosticOptions); 4478 code = hash_combine(code, hsOpts.ResourceDir); 4479 4480 if (hsOpts.ModulesStrictContextHash) { 4481 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 4482 hsOpts.SystemHeaderPrefixes.end()); 4483 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 4484 hsOpts.UserEntries.end()); 4485 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 4486 hsOpts.UserEntries.size(), UEC); 4487 4488 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4489 #define DIAGOPT(Name, Bits, Default) \ 4490 code = hash_combine(code, diagOpts.Name); 4491 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4492 code = hash_combine(code, diagOpts.get##Name()); 4493 #include "clang/Basic/DiagnosticOptions.def" 4494 #undef DIAGOPT 4495 #undef ENUM_DIAGOPT 4496 } 4497 4498 // Extend the signature with the user build path. 4499 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 4500 4501 // Extend the signature with the module file extensions. 4502 const FrontendOptions &frontendOpts = getFrontendOpts(); 4503 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 4504 code = ext->hashExtension(code); 4505 } 4506 4507 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4508 // affects the debug info in the PCM. 4509 if (getCodeGenOpts().DebugTypeExtRefs) 4510 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 4511 code = hash_combine(code, KeyValue.first, KeyValue.second); 4512 4513 // Extend the signature with the enabled sanitizers, if at least one is 4514 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4515 SanitizerSet SanHash = LangOpts->Sanitize; 4516 SanHash.clear(getPPTransparentSanitizers()); 4517 if (!SanHash.empty()) 4518 code = hash_combine(code, SanHash.Mask); 4519 4520 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 4521 } 4522 4523 void CompilerInvocation::generateCC1CommandLine( 4524 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4525 llvm::Triple T(TargetOpts->Triple); 4526 4527 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4528 GenerateMigratorArgs(MigratorOpts, Args, SA); 4529 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4530 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4531 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4532 GenerateTargetArgs(*TargetOpts, Args, SA); 4533 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4534 4535 InputKind DashX = FrontendOpts.DashX; 4536 if (DashX.getFormat() == InputKind::Precompiled || 4537 DashX.getLanguage() == Language::LLVM_IR) { 4538 if (LangOpts->ObjCAutoRefCount) 4539 GenerateArg(Args, OPT_fobjc_arc, SA); 4540 if (LangOpts->PICLevel != 0) 4541 GenerateArg(Args, OPT_pic_level, Twine(LangOpts->PICLevel), SA); 4542 if (LangOpts->PIE) 4543 GenerateArg(Args, OPT_pic_is_pie, SA); 4544 for (StringRef Sanitizer : serializeSanitizerKinds(LangOpts->Sanitize)) 4545 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 4546 } else { 4547 // FIXME: Move this whole condition into GenerateLangArgs. (And do the same 4548 // for ParseLangArgs). 4549 GenerateLangArgs(*LangOpts, Args, SA, T); 4550 } 4551 4552 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4553 &*LangOpts); 4554 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4555 CodeGenOpts); 4556 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4557 FrontendOpts.ProgramAction); 4558 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4559 } 4560 4561 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4562 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4563 DiagnosticsEngine &Diags) { 4564 return createVFSFromCompilerInvocation(CI, Diags, 4565 llvm::vfs::getRealFileSystem()); 4566 } 4567 4568 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4569 clang::createVFSFromCompilerInvocation( 4570 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4571 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4572 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4573 return BaseFS; 4574 4575 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4576 // earlier vfs files are on the bottom 4577 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4578 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4579 Result->getBufferForFile(File); 4580 if (!Buffer) { 4581 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4582 continue; 4583 } 4584 4585 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4586 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4587 /*DiagContext*/ nullptr, Result); 4588 if (!FS) { 4589 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4590 continue; 4591 } 4592 4593 Result = FS; 4594 } 4595 return Result; 4596 } 4597