1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticDriver.h" 18 #include "clang/Basic/DiagnosticOptions.h" 19 #include "clang/Basic/FileSystemOptions.h" 20 #include "clang/Basic/LLVM.h" 21 #include "clang/Basic/LangOptions.h" 22 #include "clang/Basic/LangStandard.h" 23 #include "clang/Basic/ObjCRuntime.h" 24 #include "clang/Basic/Sanitizers.h" 25 #include "clang/Basic/SourceLocation.h" 26 #include "clang/Basic/TargetOptions.h" 27 #include "clang/Basic/Version.h" 28 #include "clang/Basic/Visibility.h" 29 #include "clang/Basic/XRayInstr.h" 30 #include "clang/Config/config.h" 31 #include "clang/Driver/Driver.h" 32 #include "clang/Driver/DriverDiagnostic.h" 33 #include "clang/Driver/Options.h" 34 #include "clang/Frontend/CommandLineSourceLoc.h" 35 #include "clang/Frontend/DependencyOutputOptions.h" 36 #include "clang/Frontend/FrontendDiagnostic.h" 37 #include "clang/Frontend/FrontendOptions.h" 38 #include "clang/Frontend/FrontendPluginRegistry.h" 39 #include "clang/Frontend/MigratorOptions.h" 40 #include "clang/Frontend/PreprocessorOutputOptions.h" 41 #include "clang/Frontend/TextDiagnosticBuffer.h" 42 #include "clang/Frontend/Utils.h" 43 #include "clang/Lex/HeaderSearchOptions.h" 44 #include "clang/Lex/PreprocessorOptions.h" 45 #include "clang/Sema/CodeCompleteOptions.h" 46 #include "clang/Serialization/ASTBitCodes.h" 47 #include "clang/Serialization/ModuleFileExtension.h" 48 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 49 #include "llvm/ADT/APInt.h" 50 #include "llvm/ADT/ArrayRef.h" 51 #include "llvm/ADT/CachedHashString.h" 52 #include "llvm/ADT/DenseSet.h" 53 #include "llvm/ADT/FloatingPointMode.h" 54 #include "llvm/ADT/Hashing.h" 55 #include "llvm/ADT/None.h" 56 #include "llvm/ADT/Optional.h" 57 #include "llvm/ADT/STLExtras.h" 58 #include "llvm/ADT/SmallString.h" 59 #include "llvm/ADT/SmallVector.h" 60 #include "llvm/ADT/StringRef.h" 61 #include "llvm/ADT/StringSwitch.h" 62 #include "llvm/ADT/Triple.h" 63 #include "llvm/ADT/Twine.h" 64 #include "llvm/Config/llvm-config.h" 65 #include "llvm/IR/DebugInfoMetadata.h" 66 #include "llvm/Linker/Linker.h" 67 #include "llvm/MC/MCTargetOptions.h" 68 #include "llvm/Option/Arg.h" 69 #include "llvm/Option/ArgList.h" 70 #include "llvm/Option/OptSpecifier.h" 71 #include "llvm/Option/OptTable.h" 72 #include "llvm/Option/Option.h" 73 #include "llvm/ProfileData/InstrProfReader.h" 74 #include "llvm/Remarks/HotnessThresholdParser.h" 75 #include "llvm/Support/CodeGen.h" 76 #include "llvm/Support/Compiler.h" 77 #include "llvm/Support/Error.h" 78 #include "llvm/Support/ErrorHandling.h" 79 #include "llvm/Support/ErrorOr.h" 80 #include "llvm/Support/FileSystem.h" 81 #include "llvm/Support/Host.h" 82 #include "llvm/Support/MathExtras.h" 83 #include "llvm/Support/MemoryBuffer.h" 84 #include "llvm/Support/Path.h" 85 #include "llvm/Support/Process.h" 86 #include "llvm/Support/Regex.h" 87 #include "llvm/Support/VersionTuple.h" 88 #include "llvm/Support/VirtualFileSystem.h" 89 #include "llvm/Support/raw_ostream.h" 90 #include "llvm/Target/TargetOptions.h" 91 #include <algorithm> 92 #include <atomic> 93 #include <cassert> 94 #include <cstddef> 95 #include <cstring> 96 #include <memory> 97 #include <string> 98 #include <tuple> 99 #include <type_traits> 100 #include <utility> 101 #include <vector> 102 103 using namespace clang; 104 using namespace driver; 105 using namespace options; 106 using namespace llvm::opt; 107 108 //===----------------------------------------------------------------------===// 109 // Initialization. 110 //===----------------------------------------------------------------------===// 111 112 CompilerInvocationBase::CompilerInvocationBase() 113 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 114 DiagnosticOpts(new DiagnosticOptions()), 115 HeaderSearchOpts(new HeaderSearchOptions()), 116 PreprocessorOpts(new PreprocessorOptions()) {} 117 118 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 119 : LangOpts(new LangOptions(*X.getLangOpts())), 120 TargetOpts(new TargetOptions(X.getTargetOpts())), 121 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 122 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 123 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 124 125 CompilerInvocationBase::~CompilerInvocationBase() = default; 126 127 //===----------------------------------------------------------------------===// 128 // Normalizers 129 //===----------------------------------------------------------------------===// 130 131 #define SIMPLE_ENUM_VALUE_TABLE 132 #include "clang/Driver/Options.inc" 133 #undef SIMPLE_ENUM_VALUE_TABLE 134 135 static llvm::Optional<bool> 136 normalizeSimpleFlag(OptSpecifier Opt, unsigned TableIndex, const ArgList &Args, 137 DiagnosticsEngine &Diags, bool &Success) { 138 if (Args.hasArg(Opt)) 139 return true; 140 return None; 141 } 142 143 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 144 const ArgList &Args, 145 DiagnosticsEngine &, 146 bool &Success) { 147 if (Args.hasArg(Opt)) 148 return false; 149 return None; 150 } 151 152 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 153 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 154 /// unnecessary template instantiations and just ignore it with a variadic 155 /// argument. 156 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 157 const char *Spelling, 158 CompilerInvocation::StringAllocator, 159 Option::OptionClass, unsigned, /*T*/...) { 160 Args.push_back(Spelling); 161 } 162 163 template <typename T> static constexpr bool is_uint64_t_convertible() { 164 return !std::is_same<T, uint64_t>::value && 165 llvm::is_integral_or_enum<T>::value; 166 } 167 168 template <typename T, 169 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 170 static auto makeFlagToValueNormalizer(T Value) { 171 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 172 DiagnosticsEngine &, bool &Success) -> Optional<T> { 173 if (Args.hasArg(Opt)) 174 return Value; 175 return None; 176 }; 177 } 178 179 template <typename T, 180 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 181 static auto makeFlagToValueNormalizer(T Value) { 182 return makeFlagToValueNormalizer(uint64_t(Value)); 183 } 184 185 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 186 OptSpecifier OtherOpt) { 187 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 188 const ArgList &Args, DiagnosticsEngine &, 189 bool &Success) -> Optional<bool> { 190 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 191 return A->getOption().matches(Opt) ? Value : OtherValue; 192 } 193 return None; 194 }; 195 } 196 197 static auto makeBooleanOptionDenormalizer(bool Value) { 198 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 199 CompilerInvocation::StringAllocator, Option::OptionClass, 200 unsigned, bool KeyPath) { 201 if (KeyPath == Value) 202 Args.push_back(Spelling); 203 }; 204 } 205 206 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 207 const char *Spelling, 208 CompilerInvocation::StringAllocator SA, 209 Option::OptionClass OptClass, unsigned, 210 const Twine &Value) { 211 switch (OptClass) { 212 case Option::SeparateClass: 213 case Option::JoinedOrSeparateClass: 214 Args.push_back(Spelling); 215 Args.push_back(SA(Value)); 216 break; 217 case Option::JoinedClass: 218 case Option::CommaJoinedClass: 219 Args.push_back(SA(Twine(Spelling) + Value)); 220 break; 221 default: 222 llvm_unreachable("Cannot denormalize an option with option class " 223 "incompatible with string denormalization."); 224 } 225 } 226 227 template <typename T> 228 static void 229 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 230 CompilerInvocation::StringAllocator SA, 231 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 232 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 233 } 234 235 static Optional<SimpleEnumValue> 236 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 237 for (int I = 0, E = Table.Size; I != E; ++I) 238 if (Name == Table.Table[I].Name) 239 return Table.Table[I]; 240 241 return None; 242 } 243 244 static Optional<SimpleEnumValue> 245 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 246 for (int I = 0, E = Table.Size; I != E; ++I) 247 if (Value == Table.Table[I].Value) 248 return Table.Table[I]; 249 250 return None; 251 } 252 253 static llvm::Optional<unsigned> 254 normalizeSimpleEnum(OptSpecifier Opt, unsigned TableIndex, const ArgList &Args, 255 DiagnosticsEngine &Diags, bool &Success) { 256 assert(TableIndex < SimpleEnumValueTablesSize); 257 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 258 259 auto *Arg = Args.getLastArg(Opt); 260 if (!Arg) 261 return None; 262 263 StringRef ArgValue = Arg->getValue(); 264 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 265 return MaybeEnumVal->Value; 266 267 Success = false; 268 Diags.Report(diag::err_drv_invalid_value) 269 << Arg->getAsString(Args) << ArgValue; 270 return None; 271 } 272 273 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 274 const char *Spelling, 275 CompilerInvocation::StringAllocator SA, 276 Option::OptionClass OptClass, 277 unsigned TableIndex, unsigned Value) { 278 assert(TableIndex < SimpleEnumValueTablesSize); 279 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 280 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 281 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 282 MaybeEnumVal->Name); 283 } else { 284 llvm_unreachable("The simple enum value was not correctly defined in " 285 "the tablegen option description"); 286 } 287 } 288 289 template <typename T> 290 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 291 const char *Spelling, 292 CompilerInvocation::StringAllocator SA, 293 Option::OptionClass OptClass, 294 unsigned TableIndex, T Value) { 295 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 296 static_cast<unsigned>(Value)); 297 } 298 299 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 300 const ArgList &Args, 301 DiagnosticsEngine &Diags, 302 bool &Success) { 303 auto *Arg = Args.getLastArg(Opt); 304 if (!Arg) 305 return None; 306 return std::string(Arg->getValue()); 307 } 308 309 template <typename IntTy> 310 static Optional<IntTy> 311 normalizeStringIntegral(OptSpecifier Opt, int, const ArgList &Args, 312 DiagnosticsEngine &Diags, bool &Success) { 313 auto *Arg = Args.getLastArg(Opt); 314 if (!Arg) 315 return None; 316 IntTy Res; 317 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 318 Success = false; 319 Diags.Report(diag::err_drv_invalid_int_value) 320 << Arg->getAsString(Args) << Arg->getValue(); 321 return None; 322 } 323 return Res; 324 } 325 326 static Optional<std::vector<std::string>> 327 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 328 DiagnosticsEngine &, bool &Success) { 329 return Args.getAllArgValues(Opt); 330 } 331 332 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 333 const char *Spelling, 334 CompilerInvocation::StringAllocator SA, 335 Option::OptionClass OptClass, 336 unsigned TableIndex, 337 const std::vector<std::string> &Values) { 338 switch (OptClass) { 339 case Option::CommaJoinedClass: { 340 std::string CommaJoinedValue; 341 if (!Values.empty()) { 342 CommaJoinedValue.append(Values.front()); 343 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 344 CommaJoinedValue.append(","); 345 CommaJoinedValue.append(Value); 346 } 347 } 348 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 349 TableIndex, CommaJoinedValue); 350 break; 351 } 352 case Option::JoinedClass: 353 case Option::SeparateClass: 354 case Option::JoinedOrSeparateClass: 355 for (const std::string &Value : Values) 356 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 357 break; 358 default: 359 llvm_unreachable("Cannot denormalize an option with option class " 360 "incompatible with string vector denormalization."); 361 } 362 } 363 364 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 365 const ArgList &Args, 366 DiagnosticsEngine &Diags, 367 bool &Success) { 368 auto *Arg = Args.getLastArg(Opt); 369 if (!Arg) 370 return None; 371 return llvm::Triple::normalize(Arg->getValue()); 372 } 373 374 template <typename T, typename U> 375 static T mergeForwardValue(T KeyPath, U Value) { 376 return static_cast<T>(Value); 377 } 378 379 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 380 return KeyPath | Value; 381 } 382 383 template <typename T> static T extractForwardValue(T KeyPath) { 384 return KeyPath; 385 } 386 387 template <typename T, typename U, U Value> 388 static T extractMaskValue(T KeyPath) { 389 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 390 } 391 392 #define PARSE_OPTION_WITH_MARSHALLING(ARGS, DIAGS, SUCCESS, ID, FLAGS, PARAM, \ 393 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 394 IMPLIED_CHECK, IMPLIED_VALUE, \ 395 NORMALIZER, MERGER, TABLE_INDEX) \ 396 if ((FLAGS)&options::CC1Option) { \ 397 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 398 if (IMPLIED_CHECK) \ 399 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 400 if (SHOULD_PARSE) \ 401 if (auto MaybeValue = \ 402 NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS, SUCCESS)) \ 403 KEYPATH = \ 404 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 405 } 406 407 // Capture the extracted value as a lambda argument to avoid potential issues 408 // with lifetime extension of the reference. 409 #define GENERATE_OPTION_WITH_MARSHALLING( \ 410 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 411 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 412 TABLE_INDEX) \ 413 if ((FLAGS)&options::CC1Option) { \ 414 [&](const auto &Extracted) { \ 415 if (ALWAYS_EMIT || \ 416 (Extracted != \ 417 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 418 : (DEFAULT_VALUE)))) \ 419 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 420 TABLE_INDEX, Extracted); \ 421 }(EXTRACTOR(KEYPATH)); \ 422 } 423 424 static const StringRef GetInputKindName(InputKind IK); 425 426 static bool FixupInvocation(CompilerInvocation &Invocation, 427 DiagnosticsEngine &Diags, const ArgList &Args, 428 InputKind IK) { 429 unsigned NumErrorsBefore = Diags.getNumErrors(); 430 431 LangOptions &LangOpts = *Invocation.getLangOpts(); 432 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 433 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 434 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 435 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 436 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 437 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 438 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 439 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 440 441 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 442 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 443 LangOpts.CurrentModule = LangOpts.ModuleName; 444 445 llvm::Triple T(TargetOpts.Triple); 446 llvm::Triple::ArchType Arch = T.getArch(); 447 448 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 449 450 if (LangOpts.getExceptionHandling() != llvm::ExceptionHandling::None && 451 T.isWindowsMSVCEnvironment()) 452 Diags.Report(diag::err_fe_invalid_exception_model) 453 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 454 455 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 456 Diags.Report(diag::warn_c_kext); 457 458 if (Args.hasArg(OPT_fconcepts_ts)) 459 Diags.Report(diag::warn_fe_concepts_ts_flag); 460 461 if (LangOpts.NewAlignOverride && 462 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 463 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 464 Diags.Report(diag::err_fe_invalid_alignment) 465 << A->getAsString(Args) << A->getValue(); 466 LangOpts.NewAlignOverride = 0; 467 } 468 469 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 470 Diags.Report(diag::err_drv_argument_not_allowed_with) 471 << "-fgnu89-inline" << GetInputKindName(IK); 472 473 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 474 Diags.Report(diag::warn_ignored_hip_only_option) 475 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 476 477 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 478 Diags.Report(diag::warn_ignored_hip_only_option) 479 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 480 481 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 482 // This option should be deprecated for CL > 1.0 because 483 // this option was added for compatibility with OpenCL 1.0. 484 if (Args.getLastArg(OPT_cl_strict_aliasing) && LangOpts.OpenCLVersion > 100) 485 Diags.Report(diag::warn_option_invalid_ocl_version) 486 << LangOpts.getOpenCLVersionTuple().getAsString() 487 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 488 489 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 490 auto DefaultCC = LangOpts.getDefaultCallingConv(); 491 492 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 493 DefaultCC == LangOptions::DCC_StdCall) && 494 Arch != llvm::Triple::x86; 495 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 496 DefaultCC == LangOptions::DCC_RegCall) && 497 !T.isX86(); 498 if (emitError) 499 Diags.Report(diag::err_drv_argument_not_allowed_with) 500 << A->getSpelling() << T.getTriple(); 501 } 502 503 if (!CodeGenOpts.ProfileRemappingFile.empty() && CodeGenOpts.LegacyPassManager) 504 Diags.Report(diag::err_drv_argument_only_allowed_with) 505 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 506 << "-fno-legacy-pass-manager"; 507 508 return Diags.getNumErrors() == NumErrorsBefore; 509 } 510 511 //===----------------------------------------------------------------------===// 512 // Deserialization (from args) 513 //===----------------------------------------------------------------------===// 514 515 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 516 DiagnosticsEngine &Diags) { 517 unsigned DefaultOpt = llvm::CodeGenOpt::None; 518 if (IK.getLanguage() == Language::OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 519 DefaultOpt = llvm::CodeGenOpt::Default; 520 521 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 522 if (A->getOption().matches(options::OPT_O0)) 523 return llvm::CodeGenOpt::None; 524 525 if (A->getOption().matches(options::OPT_Ofast)) 526 return llvm::CodeGenOpt::Aggressive; 527 528 assert(A->getOption().matches(options::OPT_O)); 529 530 StringRef S(A->getValue()); 531 if (S == "s" || S == "z") 532 return llvm::CodeGenOpt::Default; 533 534 if (S == "g") 535 return llvm::CodeGenOpt::Less; 536 537 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 538 } 539 540 return DefaultOpt; 541 } 542 543 static unsigned getOptimizationLevelSize(ArgList &Args) { 544 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 545 if (A->getOption().matches(options::OPT_O)) { 546 switch (A->getValue()[0]) { 547 default: 548 return 0; 549 case 's': 550 return 1; 551 case 'z': 552 return 2; 553 } 554 } 555 } 556 return 0; 557 } 558 559 static void GenerateArg(SmallVectorImpl<const char *> &Args, 560 llvm::opt::OptSpecifier OptSpecifier, 561 CompilerInvocation::StringAllocator SA) { 562 Option Opt = getDriverOptTable().getOption(OptSpecifier); 563 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 564 Option::OptionClass::FlagClass, 0); 565 } 566 567 static void GenerateArg(SmallVectorImpl<const char *> &Args, 568 llvm::opt::OptSpecifier OptSpecifier, 569 const Twine &Value, 570 CompilerInvocation::StringAllocator SA) { 571 Option Opt = getDriverOptTable().getOption(OptSpecifier); 572 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 573 Opt.getKind(), 0, Value); 574 } 575 576 // Parse command line arguments into CompilerInvocation. 577 using ParseFn = 578 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 579 DiagnosticsEngine &, const char *)>; 580 581 // Generate command line arguments from CompilerInvocation. 582 using GenerateFn = llvm::function_ref<void( 583 CompilerInvocation &, SmallVectorImpl<const char *> &, 584 CompilerInvocation::StringAllocator)>; 585 586 // May perform round-trip of command line arguments. By default, the round-trip 587 // is enabled if CLANG_ROUND_TRIP_CC1_ARGS was defined during build. This can be 588 // overwritten at run-time via the "-round-trip-args" and "-no-round-trip-args" 589 // command line flags. 590 // During round-trip, the command line arguments are parsed into a dummy 591 // instance of CompilerInvocation which is used to generate the command line 592 // arguments again. The real CompilerInvocation instance is then created by 593 // parsing the generated arguments, not the original ones. 594 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 595 CompilerInvocation &RealInvocation, 596 CompilerInvocation &DummyInvocation, 597 ArrayRef<const char *> CommandLineArgs, 598 DiagnosticsEngine &Diags, const char *Argv0) { 599 // FIXME: Switch to '#ifndef NDEBUG' when possible. 600 #ifdef CLANG_ROUND_TRIP_CC1_ARGS 601 bool DoRoundTripDefault = true; 602 #else 603 bool DoRoundTripDefault = false; 604 #endif 605 606 bool DoRoundTrip = DoRoundTripDefault; 607 for (const auto *Arg : CommandLineArgs) { 608 if (Arg == StringRef("-round-trip-args")) 609 DoRoundTrip = true; 610 if (Arg == StringRef("-no-round-trip-args")) 611 DoRoundTrip = false; 612 } 613 614 // If round-trip was not requested, simply run the parser with the real 615 // invocation diagnostics. 616 if (!DoRoundTrip) 617 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 618 619 // Serializes quoted (and potentially escaped) arguments. 620 auto SerializeArgs = [](ArrayRef<const char *> Args) { 621 std::string Buffer; 622 llvm::raw_string_ostream OS(Buffer); 623 for (const char *Arg : Args) { 624 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 625 OS << ' '; 626 } 627 OS.flush(); 628 return Buffer; 629 }; 630 631 // Setup a dummy DiagnosticsEngine. 632 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 633 DummyDiags.setClient(new TextDiagnosticBuffer()); 634 635 // Run the first parse on the original arguments with the dummy invocation and 636 // diagnostics. 637 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 638 DummyDiags.getNumWarnings() != 0) { 639 // If the first parse did not succeed, it must be user mistake (invalid 640 // command line arguments). We won't be able to generate arguments that 641 // would reproduce the same result. Let's fail again with the real 642 // invocation and diagnostics, so all side-effects of parsing are visible. 643 unsigned NumWarningsBefore = Diags.getNumWarnings(); 644 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 645 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 646 return Success; 647 648 // Parse with original options and diagnostics succeeded even though it 649 // shouldn't have. Something is off. 650 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 651 Diags.Report(diag::note_cc1_round_trip_original) 652 << SerializeArgs(CommandLineArgs); 653 return false; 654 } 655 656 // Setup string allocator. 657 llvm::BumpPtrAllocator Alloc; 658 llvm::StringSaver StringPool(Alloc); 659 auto SA = [&StringPool](const Twine &Arg) { 660 return StringPool.save(Arg).data(); 661 }; 662 663 // Generate arguments from the dummy invocation. If Generate is the 664 // inverse of Parse, the newly generated arguments must have the same 665 // semantics as the original. 666 SmallVector<const char *, 16> GeneratedArgs1; 667 Generate(DummyInvocation, GeneratedArgs1, SA); 668 669 // Run the second parse, now on the generated arguments, and with the real 670 // invocation and diagnostics. The result is what we will end up using for the 671 // rest of compilation, so if Generate is not inverse of Parse, something down 672 // the line will break. 673 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 674 675 // The first parse on original arguments succeeded, but second parse of 676 // generated arguments failed. Something must be wrong with the generator. 677 if (!Success2) { 678 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 679 Diags.Report(diag::note_cc1_round_trip_generated) 680 << 1 << SerializeArgs(GeneratedArgs1); 681 return false; 682 } 683 684 // Generate arguments again, this time from the options we will end up using 685 // for the rest of the compilation. 686 SmallVector<const char *, 16> GeneratedArgs2; 687 Generate(RealInvocation, GeneratedArgs2, SA); 688 689 // Compares two lists of generated arguments. 690 auto Equal = [](const ArrayRef<const char *> A, 691 const ArrayRef<const char *> B) { 692 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 693 [](const char *AElem, const char *BElem) { 694 return StringRef(AElem) == StringRef(BElem); 695 }); 696 }; 697 698 // If we generated different arguments from what we assume are two 699 // semantically equivalent CompilerInvocations, the Generate function may 700 // be non-deterministic. 701 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 702 Diags.Report(diag::err_cc1_round_trip_mismatch); 703 Diags.Report(diag::note_cc1_round_trip_generated) 704 << 1 << SerializeArgs(GeneratedArgs1); 705 Diags.Report(diag::note_cc1_round_trip_generated) 706 << 2 << SerializeArgs(GeneratedArgs2); 707 return false; 708 } 709 710 Diags.Report(diag::remark_cc1_round_trip_generated) 711 << 1 << SerializeArgs(GeneratedArgs1); 712 Diags.Report(diag::remark_cc1_round_trip_generated) 713 << 2 << SerializeArgs(GeneratedArgs2); 714 715 return Success2; 716 } 717 718 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 719 OptSpecifier GroupWithValue, 720 std::vector<std::string> &Diagnostics) { 721 for (auto *A : Args.filtered(Group)) { 722 if (A->getOption().getKind() == Option::FlagClass) { 723 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 724 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 725 Diagnostics.push_back( 726 std::string(A->getOption().getName().drop_front(1))); 727 } else if (A->getOption().matches(GroupWithValue)) { 728 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 729 // group. Add only the group name to the diagnostics. 730 Diagnostics.push_back( 731 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 732 } else { 733 // Otherwise, add its value (for OPT_W_Joined and similar). 734 Diagnostics.push_back(A->getValue()); 735 } 736 } 737 } 738 739 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 740 // it won't verify the input. 741 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 742 DiagnosticsEngine *Diags); 743 744 static void getAllNoBuiltinFuncValues(ArgList &Args, 745 std::vector<std::string> &Funcs) { 746 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 747 auto BuiltinEnd = llvm::partition(Values, [](const std::string FuncName) { 748 return Builtin::Context::isBuiltinFunc(FuncName); 749 }); 750 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 751 } 752 753 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 754 SmallVectorImpl<const char *> &Args, 755 CompilerInvocation::StringAllocator SA) { 756 const AnalyzerOptions *AnalyzerOpts = &Opts; 757 758 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 759 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 760 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 761 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 762 MERGER, EXTRACTOR, TABLE_INDEX) \ 763 GENERATE_OPTION_WITH_MARSHALLING( \ 764 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 765 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 766 #include "clang/Driver/Options.inc" 767 #undef ANALYZER_OPTION_WITH_MARSHALLING 768 769 if (Opts.AnalysisStoreOpt != RegionStoreModel) { 770 switch (Opts.AnalysisStoreOpt) { 771 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 772 case NAME##Model: \ 773 GenerateArg(Args, OPT_analyzer_store, CMDFLAG, SA); \ 774 break; 775 #include "clang/StaticAnalyzer/Core/Analyses.def" 776 default: 777 llvm_unreachable("Tried to generate unknown analysis store."); 778 } 779 } 780 781 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 782 switch (Opts.AnalysisConstraintsOpt) { 783 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 784 case NAME##Model: \ 785 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 786 break; 787 #include "clang/StaticAnalyzer/Core/Analyses.def" 788 default: 789 llvm_unreachable("Tried to generate unknown analysis constraint."); 790 } 791 } 792 793 if (Opts.AnalysisDiagOpt != PD_HTML) { 794 switch (Opts.AnalysisDiagOpt) { 795 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 796 case PD_##NAME: \ 797 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 798 break; 799 #include "clang/StaticAnalyzer/Core/Analyses.def" 800 default: 801 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 802 } 803 } 804 805 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 806 switch (Opts.AnalysisPurgeOpt) { 807 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 808 case NAME: \ 809 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 810 break; 811 #include "clang/StaticAnalyzer/Core/Analyses.def" 812 default: 813 llvm_unreachable("Tried to generate unknown analysis purge mode."); 814 } 815 } 816 817 if (Opts.InliningMode != NoRedundancy) { 818 switch (Opts.InliningMode) { 819 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 820 case NAME: \ 821 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 822 break; 823 #include "clang/StaticAnalyzer/Core/Analyses.def" 824 default: 825 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 826 } 827 } 828 829 for (const auto &CP : Opts.CheckersAndPackages) { 830 OptSpecifier Opt = 831 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 832 GenerateArg(Args, Opt, CP.first, SA); 833 } 834 835 AnalyzerOptions ConfigOpts; 836 parseAnalyzerConfigs(ConfigOpts, nullptr); 837 838 for (const auto &C : Opts.Config) { 839 // Don't generate anything that came from parseAnalyzerConfigs. It would be 840 // redundant and may not be valid on the command line. 841 auto Entry = ConfigOpts.Config.find(C.getKey()); 842 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 843 continue; 844 845 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 846 } 847 848 // Nothing to generate for FullCompilerInvocation. 849 } 850 851 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 852 DiagnosticsEngine &Diags) { 853 AnalyzerOptions *AnalyzerOpts = &Opts; 854 bool Success = true; 855 856 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 857 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 858 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 859 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 860 MERGER, EXTRACTOR, TABLE_INDEX) \ 861 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 862 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 863 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 864 MERGER, TABLE_INDEX) 865 #include "clang/Driver/Options.inc" 866 #undef ANALYZER_OPTION_WITH_MARSHALLING 867 868 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 869 StringRef Name = A->getValue(); 870 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 871 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 872 .Case(CMDFLAG, NAME##Model) 873 #include "clang/StaticAnalyzer/Core/Analyses.def" 874 .Default(NumStores); 875 if (Value == NumStores) { 876 Diags.Report(diag::err_drv_invalid_value) 877 << A->getAsString(Args) << Name; 878 Success = false; 879 } else { 880 Opts.AnalysisStoreOpt = Value; 881 } 882 } 883 884 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 885 StringRef Name = A->getValue(); 886 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 887 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 888 .Case(CMDFLAG, NAME##Model) 889 #include "clang/StaticAnalyzer/Core/Analyses.def" 890 .Default(NumConstraints); 891 if (Value == NumConstraints) { 892 Diags.Report(diag::err_drv_invalid_value) 893 << A->getAsString(Args) << Name; 894 Success = false; 895 } else { 896 Opts.AnalysisConstraintsOpt = Value; 897 } 898 } 899 900 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 901 StringRef Name = A->getValue(); 902 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 903 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 904 .Case(CMDFLAG, PD_##NAME) 905 #include "clang/StaticAnalyzer/Core/Analyses.def" 906 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 907 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 908 Diags.Report(diag::err_drv_invalid_value) 909 << A->getAsString(Args) << Name; 910 Success = false; 911 } else { 912 Opts.AnalysisDiagOpt = Value; 913 } 914 } 915 916 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 917 StringRef Name = A->getValue(); 918 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 919 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 920 .Case(CMDFLAG, NAME) 921 #include "clang/StaticAnalyzer/Core/Analyses.def" 922 .Default(NumPurgeModes); 923 if (Value == NumPurgeModes) { 924 Diags.Report(diag::err_drv_invalid_value) 925 << A->getAsString(Args) << Name; 926 Success = false; 927 } else { 928 Opts.AnalysisPurgeOpt = Value; 929 } 930 } 931 932 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 933 StringRef Name = A->getValue(); 934 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 935 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 936 .Case(CMDFLAG, NAME) 937 #include "clang/StaticAnalyzer/Core/Analyses.def" 938 .Default(NumInliningModes); 939 if (Value == NumInliningModes) { 940 Diags.Report(diag::err_drv_invalid_value) 941 << A->getAsString(Args) << Name; 942 Success = false; 943 } else { 944 Opts.InliningMode = Value; 945 } 946 } 947 948 Opts.CheckersAndPackages.clear(); 949 for (const Arg *A : 950 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 951 A->claim(); 952 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 953 // We can have a list of comma separated checker names, e.g: 954 // '-analyzer-checker=cocoa,unix' 955 StringRef CheckerAndPackageList = A->getValue(); 956 SmallVector<StringRef, 16> CheckersAndPackages; 957 CheckerAndPackageList.split(CheckersAndPackages, ","); 958 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 959 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 960 IsEnabled); 961 } 962 963 // Go through the analyzer configuration options. 964 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 965 966 // We can have a list of comma separated config names, e.g: 967 // '-analyzer-config key1=val1,key2=val2' 968 StringRef configList = A->getValue(); 969 SmallVector<StringRef, 4> configVals; 970 configList.split(configVals, ","); 971 for (const auto &configVal : configVals) { 972 StringRef key, val; 973 std::tie(key, val) = configVal.split("="); 974 if (val.empty()) { 975 Diags.Report(SourceLocation(), 976 diag::err_analyzer_config_no_value) << configVal; 977 Success = false; 978 break; 979 } 980 if (val.find('=') != StringRef::npos) { 981 Diags.Report(SourceLocation(), 982 diag::err_analyzer_config_multiple_values) 983 << configVal; 984 Success = false; 985 break; 986 } 987 988 // TODO: Check checker options too, possibly in CheckerRegistry. 989 // Leave unknown non-checker configs unclaimed. 990 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 991 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) { 992 Diags.Report(diag::err_analyzer_config_unknown) << key; 993 Success = false; 994 } 995 continue; 996 } 997 998 A->claim(); 999 Opts.Config[key] = std::string(val); 1000 } 1001 } 1002 1003 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1004 parseAnalyzerConfigs(Opts, &Diags); 1005 else 1006 parseAnalyzerConfigs(Opts, nullptr); 1007 1008 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1009 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1010 if (i != 0) 1011 os << " "; 1012 os << Args.getArgString(i); 1013 } 1014 os.flush(); 1015 1016 return Success; 1017 } 1018 1019 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1020 StringRef OptionName, StringRef DefaultVal) { 1021 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1022 } 1023 1024 static void initOption(AnalyzerOptions::ConfigTable &Config, 1025 DiagnosticsEngine *Diags, 1026 StringRef &OptionField, StringRef Name, 1027 StringRef DefaultVal) { 1028 // String options may be known to invalid (e.g. if the expected string is a 1029 // file name, but the file does not exist), those will have to be checked in 1030 // parseConfigs. 1031 OptionField = getStringOption(Config, Name, DefaultVal); 1032 } 1033 1034 static void initOption(AnalyzerOptions::ConfigTable &Config, 1035 DiagnosticsEngine *Diags, 1036 bool &OptionField, StringRef Name, bool DefaultVal) { 1037 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1038 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1039 .Case("true", true) 1040 .Case("false", false) 1041 .Default(None); 1042 1043 if (!PossiblyInvalidVal) { 1044 if (Diags) 1045 Diags->Report(diag::err_analyzer_config_invalid_input) 1046 << Name << "a boolean"; 1047 else 1048 OptionField = DefaultVal; 1049 } else 1050 OptionField = PossiblyInvalidVal.getValue(); 1051 } 1052 1053 static void initOption(AnalyzerOptions::ConfigTable &Config, 1054 DiagnosticsEngine *Diags, 1055 unsigned &OptionField, StringRef Name, 1056 unsigned DefaultVal) { 1057 1058 OptionField = DefaultVal; 1059 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1060 .getAsInteger(0, OptionField); 1061 if (Diags && HasFailed) 1062 Diags->Report(diag::err_analyzer_config_invalid_input) 1063 << Name << "an unsigned"; 1064 } 1065 1066 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1067 DiagnosticsEngine *Diags) { 1068 // TODO: There's no need to store the entire configtable, it'd be plenty 1069 // enough tostore checker options. 1070 1071 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1072 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1073 1074 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1075 SHALLOW_VAL, DEEP_VAL) \ 1076 switch (AnOpts.getUserMode()) { \ 1077 case UMK_Shallow: \ 1078 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 1079 break; \ 1080 case UMK_Deep: \ 1081 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 1082 break; \ 1083 } \ 1084 1085 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1086 #undef ANALYZER_OPTION 1087 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 1088 1089 // At this point, AnalyzerOptions is configured. Let's validate some options. 1090 1091 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1092 // The current approach only validates the registered checkers which does not 1093 // contain the runtime enabled checkers and optimally we would validate both. 1094 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1095 std::vector<StringRef> Checkers = 1096 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1097 std::vector<StringRef> Packages = 1098 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1099 1100 SmallVector<StringRef, 16> CheckersAndPackages; 1101 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1102 1103 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1104 if (Diags) { 1105 bool IsChecker = CheckerOrPackage.contains('.'); 1106 bool IsValidName = 1107 IsChecker 1108 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 1109 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 1110 1111 if (!IsValidName) 1112 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1113 << CheckerOrPackage; 1114 } 1115 1116 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1117 } 1118 } 1119 1120 if (!Diags) 1121 return; 1122 1123 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1124 Diags->Report(diag::err_analyzer_config_invalid_input) 1125 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1126 1127 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1128 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1129 << "a filename"; 1130 1131 if (!AnOpts.ModelPath.empty() && 1132 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1133 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1134 << "a filename"; 1135 } 1136 1137 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1138 static void 1139 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1140 CompilerInvocation::StringAllocator SA, 1141 OptSpecifier OptEQ, StringRef Name, 1142 const CodeGenOptions::OptRemark &Remark) { 1143 if (Remark.hasValidPattern()) { 1144 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1145 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1146 GenerateArg(Args, OPT_R_Joined, Name, SA); 1147 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1148 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1149 } 1150 } 1151 1152 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1153 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1154 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1155 static CodeGenOptions::OptRemark 1156 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1157 OptSpecifier OptEQ, StringRef Name) { 1158 CodeGenOptions::OptRemark Result; 1159 1160 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A) { 1161 Result.Pattern = A->getValue(); 1162 1163 std::string RegexError; 1164 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1165 if (!Result.Regex->isValid(RegexError)) { 1166 Diags.Report(diag::err_drv_optimization_remark_pattern) 1167 << RegexError << A->getAsString(Args); 1168 return false; 1169 } 1170 1171 return true; 1172 }; 1173 1174 for (Arg *A : Args) { 1175 if (A->getOption().matches(OPT_R_Joined)) { 1176 StringRef Value = A->getValue(); 1177 1178 if (Value == Name) 1179 Result.Kind = CodeGenOptions::RK_Enabled; 1180 else if (Value == "everything") 1181 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1182 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1183 Result.Kind = CodeGenOptions::RK_Disabled; 1184 else if (Value == "no-everything") 1185 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1186 } else if (A->getOption().matches(OptEQ)) { 1187 Result.Kind = CodeGenOptions::RK_WithPattern; 1188 if (!InitializeResultPattern(A)) 1189 return CodeGenOptions::OptRemark(); 1190 } 1191 } 1192 1193 if (Result.Kind == CodeGenOptions::RK_Disabled || 1194 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1195 Result.Pattern = ""; 1196 Result.Regex = nullptr; 1197 } 1198 1199 return Result; 1200 } 1201 1202 static bool parseDiagnosticLevelMask(StringRef FlagName, 1203 const std::vector<std::string> &Levels, 1204 DiagnosticsEngine &Diags, 1205 DiagnosticLevelMask &M) { 1206 bool Success = true; 1207 for (const auto &Level : Levels) { 1208 DiagnosticLevelMask const PM = 1209 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1210 .Case("note", DiagnosticLevelMask::Note) 1211 .Case("remark", DiagnosticLevelMask::Remark) 1212 .Case("warning", DiagnosticLevelMask::Warning) 1213 .Case("error", DiagnosticLevelMask::Error) 1214 .Default(DiagnosticLevelMask::None); 1215 if (PM == DiagnosticLevelMask::None) { 1216 Success = false; 1217 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1218 } 1219 M = M | PM; 1220 } 1221 return Success; 1222 } 1223 1224 static void parseSanitizerKinds(StringRef FlagName, 1225 const std::vector<std::string> &Sanitizers, 1226 DiagnosticsEngine &Diags, SanitizerSet &S) { 1227 for (const auto &Sanitizer : Sanitizers) { 1228 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1229 if (K == SanitizerMask()) 1230 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1231 else 1232 S.set(K, true); 1233 } 1234 } 1235 1236 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1237 SmallVector<StringRef, 4> Values; 1238 serializeSanitizerSet(S, Values); 1239 return Values; 1240 } 1241 1242 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1243 ArgList &Args, DiagnosticsEngine &D, 1244 XRayInstrSet &S) { 1245 llvm::SmallVector<StringRef, 2> BundleParts; 1246 llvm::SplitString(Bundle, BundleParts, ","); 1247 for (const auto &B : BundleParts) { 1248 auto Mask = parseXRayInstrValue(B); 1249 if (Mask == XRayInstrKind::None) 1250 if (B != "none") 1251 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1252 else 1253 S.Mask = Mask; 1254 else if (Mask == XRayInstrKind::All) 1255 S.Mask = Mask; 1256 else 1257 S.set(Mask, true); 1258 } 1259 } 1260 1261 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1262 llvm::SmallVector<StringRef, 2> BundleParts; 1263 serializeXRayInstrValue(S, BundleParts); 1264 std::string Buffer; 1265 llvm::raw_string_ostream OS(Buffer); 1266 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1267 return OS.str(); 1268 } 1269 1270 // Set the profile kind using fprofile-instrument-use-path. 1271 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1272 const Twine &ProfileName) { 1273 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1274 // In error, return silently and let Clang PGOUse report the error message. 1275 if (auto E = ReaderOrErr.takeError()) { 1276 llvm::consumeError(std::move(E)); 1277 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1278 return; 1279 } 1280 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1281 std::move(ReaderOrErr.get()); 1282 if (PGOReader->isIRLevelProfile()) { 1283 if (PGOReader->hasCSIRLevelProfile()) 1284 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1285 else 1286 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1287 } else 1288 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1289 } 1290 1291 void CompilerInvocation::GenerateCodeGenArgs( 1292 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1293 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1294 const LangOptions *LangOpts) { 1295 const CodeGenOptions &CodeGenOpts = Opts; 1296 1297 if (Opts.OptimizationLevel == 0) 1298 GenerateArg(Args, OPT_O0, SA); 1299 else 1300 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1301 1302 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1303 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1304 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1305 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1306 MERGER, EXTRACTOR, TABLE_INDEX) \ 1307 GENERATE_OPTION_WITH_MARSHALLING( \ 1308 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1309 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1310 #include "clang/Driver/Options.inc" 1311 #undef CODEGEN_OPTION_WITH_MARSHALLING 1312 1313 if (Opts.OptimizationLevel > 0) { 1314 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1315 GenerateArg(Args, OPT_finline_functions, SA); 1316 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1317 GenerateArg(Args, OPT_finline_hint_functions, SA); 1318 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1319 GenerateArg(Args, OPT_fno_inline, SA); 1320 } 1321 1322 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1323 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1324 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1325 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1326 1327 Optional<StringRef> DebugInfoVal; 1328 switch (Opts.DebugInfo) { 1329 case codegenoptions::DebugLineTablesOnly: 1330 DebugInfoVal = "line-tables-only"; 1331 break; 1332 case codegenoptions::DebugDirectivesOnly: 1333 DebugInfoVal = "line-directives-only"; 1334 break; 1335 case codegenoptions::DebugInfoConstructor: 1336 DebugInfoVal = "constructor"; 1337 break; 1338 case codegenoptions::LimitedDebugInfo: 1339 DebugInfoVal = "limited"; 1340 break; 1341 case codegenoptions::FullDebugInfo: 1342 DebugInfoVal = "standalone"; 1343 break; 1344 case codegenoptions::UnusedTypeInfo: 1345 DebugInfoVal = "unused-types"; 1346 break; 1347 case codegenoptions::NoDebugInfo: // default value 1348 DebugInfoVal = None; 1349 break; 1350 case codegenoptions::LocTrackingOnly: // implied value 1351 DebugInfoVal = None; 1352 break; 1353 } 1354 if (DebugInfoVal) 1355 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1356 1357 if (Opts.DebugInfo == codegenoptions::DebugInfoConstructor) 1358 GenerateArg(Args, OPT_fuse_ctor_homing, SA); 1359 1360 for (const auto &Prefix : Opts.DebugPrefixMap) 1361 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1362 Prefix.first + "=" + Prefix.second, SA); 1363 1364 for (const auto &Prefix : Opts.CoveragePrefixMap) 1365 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1366 Prefix.first + "=" + Prefix.second, SA); 1367 1368 if (Opts.NewStructPathTBAA) 1369 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1370 1371 if (Opts.OptimizeSize == 1) 1372 GenerateArg(Args, OPT_O, "s", SA); 1373 else if (Opts.OptimizeSize == 2) 1374 GenerateArg(Args, OPT_O, "z", SA); 1375 1376 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1377 // -ffreestanding. We'll consider that when generating them. 1378 1379 // NoBuiltinFuncs are generated by LangOptions. 1380 1381 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1382 GenerateArg(Args, OPT_funroll_loops, SA); 1383 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1384 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1385 1386 if (!Opts.BinutilsVersion.empty()) 1387 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1388 1389 if (Opts.DebugNameTable == 1390 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1391 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1392 else if (Opts.DebugNameTable == 1393 static_cast<unsigned>( 1394 llvm::DICompileUnit::DebugNameTableKind::Default)) 1395 GenerateArg(Args, OPT_gpubnames, SA); 1396 1397 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1398 // it or PGOUseInstrumentor. 1399 1400 if (Opts.TimePasses) { 1401 if (Opts.TimePassesPerRun) 1402 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1403 else 1404 GenerateArg(Args, OPT_ftime_report, SA); 1405 } 1406 1407 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1408 GenerateArg(Args, OPT_flto, SA); 1409 1410 if (Opts.PrepareForThinLTO) 1411 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1412 1413 if (!Opts.ThinLTOIndexFile.empty()) 1414 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1415 1416 if (Opts.SaveTempsFilePrefix == OutputFile) 1417 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1418 1419 StringRef MemProfileBasename("memprof.profraw"); 1420 if (!Opts.MemoryProfileOutput.empty()) { 1421 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1422 GenerateArg(Args, OPT_fmemory_profile, SA); 1423 } else { 1424 size_t ArgLength = 1425 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1426 GenerateArg(Args, OPT_fmemory_profile_EQ, 1427 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1428 } 1429 } 1430 1431 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1432 GenerateArg(Args, OPT_coverage_version_EQ, 1433 StringRef(Opts.CoverageVersion, 4), SA); 1434 1435 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1436 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1437 // won't be generated.) 1438 1439 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1440 std::string InstrBundle = 1441 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1442 if (!InstrBundle.empty()) 1443 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1444 } 1445 1446 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1447 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1448 else if (Opts.CFProtectionReturn) 1449 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1450 else if (Opts.CFProtectionBranch) 1451 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1452 1453 for (const auto &F : Opts.LinkBitcodeFiles) { 1454 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1455 F.PropagateAttrs && F.Internalize; 1456 GenerateArg(Args, 1457 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1458 F.Filename, SA); 1459 } 1460 1461 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1462 // That would make it easy to generate the option only **once** if it was 1463 // explicitly set to non-default value. 1464 if (Opts.ExplicitEmulatedTLS) { 1465 GenerateArg( 1466 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1467 } 1468 1469 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1470 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1471 1472 if (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE()) 1473 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1474 SA); 1475 1476 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1477 OptSpecifier Opt = 1478 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1479 GenerateArg(Args, Opt, SA); 1480 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1481 OptSpecifier Opt = 1482 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1483 GenerateArg(Args, Opt, SA); 1484 } 1485 1486 if (Opts.EnableAIXExtendedAltivecABI) 1487 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1488 1489 if (!Opts.OptRecordPasses.empty()) 1490 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1491 1492 if (!Opts.OptRecordFormat.empty()) 1493 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1494 1495 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1496 Opts.OptimizationRemark); 1497 1498 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1499 Opts.OptimizationRemarkMissed); 1500 1501 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1502 Opts.OptimizationRemarkAnalysis); 1503 1504 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1505 Opts.DiagnosticsHotnessThreshold 1506 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1507 : "auto", 1508 SA); 1509 1510 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1511 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1512 1513 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1514 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1515 1516 if (!Opts.EmitVersionIdentMetadata) 1517 GenerateArg(Args, OPT_Qn, SA); 1518 1519 switch (Opts.FiniteLoops) { 1520 case CodeGenOptions::FiniteLoopsKind::Language: 1521 break; 1522 case CodeGenOptions::FiniteLoopsKind::Always: 1523 GenerateArg(Args, OPT_ffinite_loops, SA); 1524 break; 1525 case CodeGenOptions::FiniteLoopsKind::Never: 1526 GenerateArg(Args, OPT_fno_finite_loops, SA); 1527 break; 1528 } 1529 } 1530 1531 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1532 InputKind IK, 1533 DiagnosticsEngine &Diags, 1534 const llvm::Triple &T, 1535 const std::string &OutputFile, 1536 const LangOptions &LangOptsRef) { 1537 unsigned NumErrorsBefore = Diags.getNumErrors(); 1538 1539 bool Success = true; 1540 1541 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1542 // TODO: This could be done in Driver 1543 unsigned MaxOptLevel = 3; 1544 if (OptimizationLevel > MaxOptLevel) { 1545 // If the optimization level is not supported, fall back on the default 1546 // optimization 1547 Diags.Report(diag::warn_drv_optimization_value) 1548 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1549 OptimizationLevel = MaxOptLevel; 1550 } 1551 Opts.OptimizationLevel = OptimizationLevel; 1552 1553 // The key paths of codegen options defined in Options.td start with 1554 // "CodeGenOpts.". Let's provide the expected variable name and type. 1555 CodeGenOptions &CodeGenOpts = Opts; 1556 // Some codegen options depend on language options. Let's provide the expected 1557 // variable name and type. 1558 const LangOptions *LangOpts = &LangOptsRef; 1559 1560 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1561 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1562 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1563 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1564 MERGER, EXTRACTOR, TABLE_INDEX) \ 1565 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 1566 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1567 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 1568 MERGER, TABLE_INDEX) 1569 #include "clang/Driver/Options.inc" 1570 #undef CODEGEN_OPTION_WITH_MARSHALLING 1571 1572 // At O0 we want to fully disable inlining outside of cases marked with 1573 // 'alwaysinline' that are required for correctness. 1574 Opts.setInlining((Opts.OptimizationLevel == 0) 1575 ? CodeGenOptions::OnlyAlwaysInlining 1576 : CodeGenOptions::NormalInlining); 1577 // Explicit inlining flags can disable some or all inlining even at 1578 // optimization levels above zero. 1579 if (Arg *InlineArg = Args.getLastArg( 1580 options::OPT_finline_functions, options::OPT_finline_hint_functions, 1581 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 1582 if (Opts.OptimizationLevel > 0) { 1583 const Option &InlineOpt = InlineArg->getOption(); 1584 if (InlineOpt.matches(options::OPT_finline_functions)) 1585 Opts.setInlining(CodeGenOptions::NormalInlining); 1586 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 1587 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1588 else 1589 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1590 } 1591 } 1592 1593 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1594 // -fdirect-access-external-data. 1595 Opts.DirectAccessExternalData = 1596 Args.hasArg(OPT_fdirect_access_external_data) || 1597 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1598 LangOpts->PICLevel == 0); 1599 1600 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1601 unsigned Val = 1602 llvm::StringSwitch<unsigned>(A->getValue()) 1603 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1604 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1605 .Case("constructor", codegenoptions::DebugInfoConstructor) 1606 .Case("limited", codegenoptions::LimitedDebugInfo) 1607 .Case("standalone", codegenoptions::FullDebugInfo) 1608 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1609 .Default(~0U); 1610 if (Val == ~0U) 1611 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1612 << A->getValue(); 1613 else 1614 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1615 } 1616 1617 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1618 // constructor homing. 1619 if (Args.getLastArg(OPT_fuse_ctor_homing)) 1620 if (Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1621 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1622 1623 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1624 auto Split = StringRef(Arg).split('='); 1625 Opts.DebugPrefixMap.insert( 1626 {std::string(Split.first), std::string(Split.second)}); 1627 } 1628 1629 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1630 auto Split = StringRef(Arg).split('='); 1631 Opts.CoveragePrefixMap.insert( 1632 {std::string(Split.first), std::string(Split.second)}); 1633 } 1634 1635 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1636 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1637 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1638 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1639 1640 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1641 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1642 Opts.EmitCallSiteInfo = true; 1643 1644 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1645 Args.hasArg(OPT_new_struct_path_tbaa); 1646 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1647 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1648 if (Opts.SimplifyLibCalls) 1649 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1650 Opts.UnrollLoops = 1651 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1652 (Opts.OptimizationLevel > 1)); 1653 Opts.BinutilsVersion = 1654 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1655 1656 Opts.DebugNameTable = static_cast<unsigned>( 1657 Args.hasArg(OPT_ggnu_pubnames) 1658 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1659 : Args.hasArg(OPT_gpubnames) 1660 ? llvm::DICompileUnit::DebugNameTableKind::Default 1661 : llvm::DICompileUnit::DebugNameTableKind::None); 1662 1663 if (!Opts.ProfileInstrumentUsePath.empty()) 1664 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1665 1666 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1667 Opts.TimePasses = true; 1668 1669 // -ftime-report= is only for new pass manager. 1670 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1671 if (Opts.LegacyPassManager) 1672 Diags.Report(diag::err_drv_argument_only_allowed_with) 1673 << A->getAsString(Args) << "-fno-legacy-pass-manager"; 1674 1675 StringRef Val = A->getValue(); 1676 if (Val == "per-pass") 1677 Opts.TimePassesPerRun = false; 1678 else if (Val == "per-pass-run") 1679 Opts.TimePassesPerRun = true; 1680 else 1681 Diags.Report(diag::err_drv_invalid_value) 1682 << A->getAsString(Args) << A->getValue(); 1683 } 1684 } 1685 1686 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 1687 Opts.PrepareForThinLTO = false; 1688 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1689 StringRef S = A->getValue(); 1690 if (S == "thin") 1691 Opts.PrepareForThinLTO = true; 1692 else if (S != "full") 1693 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1694 } 1695 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1696 if (IK.getLanguage() != Language::LLVM_IR) 1697 Diags.Report(diag::err_drv_argument_only_allowed_with) 1698 << A->getAsString(Args) << "-x ir"; 1699 Opts.ThinLTOIndexFile = 1700 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1701 } 1702 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1703 Opts.SaveTempsFilePrefix = 1704 llvm::StringSwitch<std::string>(A->getValue()) 1705 .Case("obj", OutputFile) 1706 .Default(llvm::sys::path::filename(OutputFile).str()); 1707 1708 // The memory profile runtime appends the pid to make this name more unique. 1709 const char *MemProfileBasename = "memprof.profraw"; 1710 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1711 SmallString<128> Path( 1712 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1713 llvm::sys::path::append(Path, MemProfileBasename); 1714 Opts.MemoryProfileOutput = std::string(Path); 1715 } else if (Args.hasArg(OPT_fmemory_profile)) 1716 Opts.MemoryProfileOutput = MemProfileBasename; 1717 1718 memcpy(Opts.CoverageVersion, "408*", 4); 1719 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1720 if (Args.hasArg(OPT_coverage_version_EQ)) { 1721 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1722 if (CoverageVersion.size() != 4) { 1723 Diags.Report(diag::err_drv_invalid_value) 1724 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1725 << CoverageVersion; 1726 } else { 1727 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1728 } 1729 } 1730 } 1731 // FIXME: For backend options that are not yet recorded as function 1732 // attributes in the IR, keep track of them so we can embed them in a 1733 // separate data section and use them when building the bitcode. 1734 for (const auto &A : Args) { 1735 // Do not encode output and input. 1736 if (A->getOption().getID() == options::OPT_o || 1737 A->getOption().getID() == options::OPT_INPUT || 1738 A->getOption().getID() == options::OPT_x || 1739 A->getOption().getID() == options::OPT_fembed_bitcode || 1740 A->getOption().matches(options::OPT_W_Group)) 1741 continue; 1742 ArgStringList ASL; 1743 A->render(Args, ASL); 1744 for (const auto &arg : ASL) { 1745 StringRef ArgStr(arg); 1746 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1747 // using \00 to separate each commandline options. 1748 Opts.CmdArgs.push_back('\0'); 1749 } 1750 } 1751 1752 auto XRayInstrBundles = 1753 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1754 if (XRayInstrBundles.empty()) 1755 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1756 else 1757 for (const auto &A : XRayInstrBundles) 1758 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1759 Diags, Opts.XRayInstrumentationBundle); 1760 1761 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1762 StringRef Name = A->getValue(); 1763 if (Name == "full") { 1764 Opts.CFProtectionReturn = 1; 1765 Opts.CFProtectionBranch = 1; 1766 } else if (Name == "return") 1767 Opts.CFProtectionReturn = 1; 1768 else if (Name == "branch") 1769 Opts.CFProtectionBranch = 1; 1770 else if (Name != "none") { 1771 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1772 Success = false; 1773 } 1774 } 1775 1776 for (auto *A : 1777 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1778 CodeGenOptions::BitcodeFileToLink F; 1779 F.Filename = A->getValue(); 1780 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1781 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1782 // When linking CUDA bitcode, propagate function attributes so that 1783 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1784 F.PropagateAttrs = true; 1785 F.Internalize = true; 1786 } 1787 Opts.LinkBitcodeFiles.push_back(F); 1788 } 1789 1790 if (Args.getLastArg(OPT_femulated_tls) || 1791 Args.getLastArg(OPT_fno_emulated_tls)) { 1792 Opts.ExplicitEmulatedTLS = true; 1793 } 1794 1795 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1796 StringRef Val = A->getValue(); 1797 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1798 if (!Opts.FPDenormalMode.isValid()) 1799 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1800 } 1801 1802 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1803 StringRef Val = A->getValue(); 1804 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1805 if (!Opts.FP32DenormalMode.isValid()) 1806 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1807 } 1808 1809 // X86_32 has -fppc-struct-return and -freg-struct-return. 1810 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1811 if (Arg *A = 1812 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1813 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1814 // TODO: We might want to consider enabling these options on AIX in the 1815 // future. 1816 if (T.isOSAIX()) 1817 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1818 << A->getSpelling() << T.str(); 1819 1820 const Option &O = A->getOption(); 1821 if (O.matches(OPT_fpcc_struct_return) || 1822 O.matches(OPT_maix_struct_return)) { 1823 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1824 } else { 1825 assert(O.matches(OPT_freg_struct_return) || 1826 O.matches(OPT_msvr4_struct_return)); 1827 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1828 } 1829 } 1830 1831 if (Arg *A = 1832 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1833 if (!T.isOSAIX()) 1834 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1835 << A->getSpelling() << T.str(); 1836 1837 const Option &O = A->getOption(); 1838 if (O.matches(OPT_mabi_EQ_vec_default)) 1839 Diags.Report(diag::err_aix_default_altivec_abi) 1840 << A->getSpelling() << T.str(); 1841 else { 1842 assert(O.matches(OPT_mabi_EQ_vec_extabi)); 1843 Opts.EnableAIXExtendedAltivecABI = 1; 1844 } 1845 } 1846 1847 bool NeedLocTracking = false; 1848 1849 if (!Opts.OptRecordFile.empty()) 1850 NeedLocTracking = true; 1851 1852 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1853 Opts.OptRecordPasses = A->getValue(); 1854 NeedLocTracking = true; 1855 } 1856 1857 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1858 Opts.OptRecordFormat = A->getValue(); 1859 NeedLocTracking = true; 1860 } 1861 1862 Opts.OptimizationRemark = 1863 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1864 1865 Opts.OptimizationRemarkMissed = 1866 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1867 1868 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1869 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1870 1871 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1872 Opts.OptimizationRemarkMissed.hasValidPattern() || 1873 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1874 1875 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1876 bool UsingProfile = UsingSampleProfile || 1877 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1878 1879 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1880 // An IR file will contain PGO as metadata 1881 IK.getLanguage() != Language::LLVM_IR) 1882 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1883 << "-fdiagnostics-show-hotness"; 1884 1885 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1886 if (auto *arg = 1887 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1888 auto ResultOrErr = 1889 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1890 1891 if (!ResultOrErr) { 1892 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1893 << "-fdiagnostics-hotness-threshold="; 1894 } else { 1895 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1896 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1897 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1898 !UsingProfile) 1899 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1900 << "-fdiagnostics-hotness-threshold="; 1901 } 1902 } 1903 1904 // If the user requested to use a sample profile for PGO, then the 1905 // backend will need to track source location information so the profile 1906 // can be incorporated into the IR. 1907 if (UsingSampleProfile) 1908 NeedLocTracking = true; 1909 1910 // If the user requested a flag that requires source locations available in 1911 // the backend, make sure that the backend tracks source location information. 1912 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1913 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1914 1915 // Parse -fsanitize-recover= arguments. 1916 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1917 parseSanitizerKinds("-fsanitize-recover=", 1918 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1919 Opts.SanitizeRecover); 1920 parseSanitizerKinds("-fsanitize-trap=", 1921 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1922 Opts.SanitizeTrap); 1923 1924 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1925 1926 if (Args.hasArg(options::OPT_ffinite_loops)) 1927 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 1928 else if (Args.hasArg(options::OPT_fno_finite_loops)) 1929 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 1930 1931 return Success && Diags.getNumErrors() == NumErrorsBefore; 1932 } 1933 1934 static void 1935 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 1936 SmallVectorImpl<const char *> &Args, 1937 CompilerInvocation::StringAllocator SA) { 1938 const DependencyOutputOptions &DependencyOutputOpts = Opts; 1939 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1940 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1941 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1942 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1943 MERGER, EXTRACTOR, TABLE_INDEX) \ 1944 GENERATE_OPTION_WITH_MARSHALLING( \ 1945 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1946 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1947 #include "clang/Driver/Options.inc" 1948 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 1949 1950 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 1951 GenerateArg(Args, OPT_show_includes, SA); 1952 1953 for (const auto &Dep : Opts.ExtraDeps) { 1954 switch (Dep.second) { 1955 case EDK_SanitizeBlacklist: 1956 // Sanitizer blacklist arguments are generated from LanguageOptions. 1957 continue; 1958 case EDK_ModuleFile: 1959 // Module file arguments are generated from FrontendOptions and 1960 // HeaderSearchOptions. 1961 continue; 1962 case EDK_ProfileList: 1963 // Profile list arguments are generated from LanguageOptions via the 1964 // marshalling infrastructure. 1965 continue; 1966 case EDK_DepFileEntry: 1967 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 1968 break; 1969 } 1970 } 1971 } 1972 1973 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1974 ArgList &Args, DiagnosticsEngine &Diags, 1975 frontend::ActionKind Action, 1976 bool ShowLineMarkers) { 1977 unsigned NumErrorsBefore = Diags.getNumErrors(); 1978 bool Success = true; 1979 1980 DependencyOutputOptions &DependencyOutputOpts = Opts; 1981 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1982 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1983 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1984 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1985 MERGER, EXTRACTOR, TABLE_INDEX) \ 1986 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 1987 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1988 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 1989 MERGER, TABLE_INDEX) 1990 #include "clang/Driver/Options.inc" 1991 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 1992 1993 if (Args.hasArg(OPT_show_includes)) { 1994 // Writing both /showIncludes and preprocessor output to stdout 1995 // would produce interleaved output, so use stderr for /showIncludes. 1996 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 1997 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 1998 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 1999 else 2000 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2001 } else { 2002 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2003 } 2004 2005 // Add sanitizer blacklists as extra dependencies. 2006 // They won't be discovered by the regular preprocessor, so 2007 // we let make / ninja to know about this implicit dependency. 2008 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 2009 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 2010 StringRef Val = A->getValue(); 2011 if (Val.find('=') == StringRef::npos) 2012 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeBlacklist); 2013 } 2014 if (Opts.IncludeSystemHeaders) { 2015 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 2016 StringRef Val = A->getValue(); 2017 if (Val.find('=') == StringRef::npos) 2018 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeBlacklist); 2019 } 2020 } 2021 } 2022 2023 // -fprofile-list= dependencies. 2024 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2025 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2026 2027 // Propagate the extra dependencies. 2028 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2029 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2030 2031 // Only the -fmodule-file=<file> form. 2032 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2033 StringRef Val = A->getValue(); 2034 if (Val.find('=') == StringRef::npos) 2035 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2036 } 2037 2038 return Success && Diags.getNumErrors() == NumErrorsBefore; 2039 } 2040 2041 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2042 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2043 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2044 // Support both clang's -f[no-]color-diagnostics and gcc's 2045 // -f[no-]diagnostics-colors[=never|always|auto]. 2046 enum { 2047 Colors_On, 2048 Colors_Off, 2049 Colors_Auto 2050 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2051 for (auto *A : Args) { 2052 const Option &O = A->getOption(); 2053 if (O.matches(options::OPT_fcolor_diagnostics) || 2054 O.matches(options::OPT_fdiagnostics_color)) { 2055 ShowColors = Colors_On; 2056 } else if (O.matches(options::OPT_fno_color_diagnostics) || 2057 O.matches(options::OPT_fno_diagnostics_color)) { 2058 ShowColors = Colors_Off; 2059 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2060 StringRef Value(A->getValue()); 2061 if (Value == "always") 2062 ShowColors = Colors_On; 2063 else if (Value == "never") 2064 ShowColors = Colors_Off; 2065 else if (Value == "auto") 2066 ShowColors = Colors_Auto; 2067 } 2068 } 2069 return ShowColors == Colors_On || 2070 (ShowColors == Colors_Auto && 2071 llvm::sys::Process::StandardErrHasColors()); 2072 } 2073 2074 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2075 DiagnosticsEngine &Diags) { 2076 bool Success = true; 2077 for (const auto &Prefix : VerifyPrefixes) { 2078 // Every prefix must start with a letter and contain only alphanumeric 2079 // characters, hyphens, and underscores. 2080 auto BadChar = llvm::find_if(Prefix, [](char C) { 2081 return !isAlphanumeric(C) && C != '-' && C != '_'; 2082 }); 2083 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2084 Success = false; 2085 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2086 Diags.Report(diag::note_drv_verify_prefix_spelling); 2087 } 2088 } 2089 return Success; 2090 } 2091 2092 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2093 SmallVectorImpl<const char *> &Args, 2094 CompilerInvocation::StringAllocator SA) { 2095 const FileSystemOptions &FileSystemOpts = Opts; 2096 2097 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2098 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2099 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2100 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2101 MERGER, EXTRACTOR, TABLE_INDEX) \ 2102 GENERATE_OPTION_WITH_MARSHALLING( \ 2103 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2104 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2105 #include "clang/Driver/Options.inc" 2106 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2107 } 2108 2109 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2110 DiagnosticsEngine &Diags) { 2111 FileSystemOptions &FileSystemOpts = Opts; 2112 bool Success = true; 2113 2114 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2115 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2116 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2117 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2118 MERGER, EXTRACTOR, TABLE_INDEX) \ 2119 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2120 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2121 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2122 MERGER, TABLE_INDEX) 2123 #include "clang/Driver/Options.inc" 2124 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2125 2126 return Success; 2127 } 2128 2129 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2130 SmallVectorImpl<const char *> &Args, 2131 CompilerInvocation::StringAllocator SA) { 2132 const MigratorOptions &MigratorOpts = Opts; 2133 2134 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2135 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2136 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2137 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2138 MERGER, EXTRACTOR, TABLE_INDEX) \ 2139 GENERATE_OPTION_WITH_MARSHALLING( \ 2140 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2141 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2142 #include "clang/Driver/Options.inc" 2143 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2144 } 2145 2146 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2147 DiagnosticsEngine &Diags) { 2148 MigratorOptions &MigratorOpts = Opts; 2149 bool Success = true; 2150 2151 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2152 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2153 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2154 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2155 MERGER, EXTRACTOR, TABLE_INDEX) \ 2156 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2157 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2158 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2159 MERGER, TABLE_INDEX) 2160 #include "clang/Driver/Options.inc" 2161 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2162 2163 return Success; 2164 } 2165 2166 void CompilerInvocation::GenerateDiagnosticArgs( 2167 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2168 StringAllocator SA, bool DefaultDiagColor) { 2169 const DiagnosticOptions *DiagnosticOpts = &Opts; 2170 #define DIAG_OPTION_WITH_MARSHALLING( \ 2171 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2172 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2173 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2174 MERGER, EXTRACTOR, TABLE_INDEX) \ 2175 GENERATE_OPTION_WITH_MARSHALLING( \ 2176 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2177 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2178 #include "clang/Driver/Options.inc" 2179 #undef DIAG_OPTION_WITH_MARSHALLING 2180 2181 if (!Opts.DiagnosticSerializationFile.empty()) 2182 GenerateArg(Args, OPT_diagnostic_serialized_file, 2183 Opts.DiagnosticSerializationFile, SA); 2184 2185 if (Opts.ShowColors) 2186 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2187 2188 if (Opts.VerifyDiagnostics && 2189 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2190 GenerateArg(Args, OPT_verify, SA); 2191 2192 for (const auto &Prefix : Opts.VerifyPrefixes) 2193 if (Prefix != "expected") 2194 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2195 2196 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2197 if (VIU == DiagnosticLevelMask::None) { 2198 // This is the default, don't generate anything. 2199 } else if (VIU == DiagnosticLevelMask::All) { 2200 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2201 } else { 2202 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2203 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2204 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2205 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2206 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2207 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2208 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2209 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2210 } 2211 2212 for (const auto &Warning : Opts.Warnings) { 2213 // This option is automatically generated from UndefPrefixes. 2214 if (Warning == "undef-prefix") 2215 continue; 2216 Args.push_back(SA(StringRef("-W") + Warning)); 2217 } 2218 2219 for (const auto &Remark : Opts.Remarks) { 2220 // These arguments are generated from OptimizationRemark fields of 2221 // CodeGenOptions. 2222 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2223 "pass-analysis", "no-pass-analysis", 2224 "pass-missed", "no-pass-missed"}; 2225 if (llvm::is_contained(IgnoredRemarks, Remark)) 2226 continue; 2227 2228 Args.push_back(SA(StringRef("-R") + Remark)); 2229 } 2230 } 2231 2232 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2233 DiagnosticsEngine *Diags, 2234 bool DefaultDiagColor) { 2235 Optional<DiagnosticsEngine> IgnoringDiags; 2236 if (!Diags) { 2237 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2238 new IgnoringDiagConsumer()); 2239 Diags = &*IgnoringDiags; 2240 } 2241 2242 // The key paths of diagnostic options defined in Options.td start with 2243 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2244 DiagnosticOptions *DiagnosticOpts = &Opts; 2245 bool Success = true; 2246 2247 #define DIAG_OPTION_WITH_MARSHALLING( \ 2248 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2249 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2250 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2251 MERGER, EXTRACTOR, TABLE_INDEX) \ 2252 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, Success, ID, FLAGS, PARAM, \ 2253 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2254 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2255 MERGER, TABLE_INDEX) 2256 #include "clang/Driver/Options.inc" 2257 #undef DIAG_OPTION_WITH_MARSHALLING 2258 2259 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2260 2261 if (Arg *A = 2262 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2263 Opts.DiagnosticSerializationFile = A->getValue(); 2264 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2265 2266 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2267 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2268 if (Args.hasArg(OPT_verify)) 2269 Opts.VerifyPrefixes.push_back("expected"); 2270 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2271 // then sort it to prepare for fast lookup using std::binary_search. 2272 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) { 2273 Opts.VerifyDiagnostics = false; 2274 Success = false; 2275 } 2276 else 2277 llvm::sort(Opts.VerifyPrefixes); 2278 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2279 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 2280 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 2281 *Diags, DiagMask); 2282 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2283 DiagMask = DiagnosticLevelMask::All; 2284 Opts.setVerifyIgnoreUnexpected(DiagMask); 2285 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2286 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2287 Diags->Report(diag::warn_ignoring_ftabstop_value) 2288 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2289 } 2290 2291 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2292 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2293 2294 return Success; 2295 } 2296 2297 /// Parse the argument to the -ftest-module-file-extension 2298 /// command-line argument. 2299 /// 2300 /// \returns true on error, false on success. 2301 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2302 std::string &BlockName, 2303 unsigned &MajorVersion, 2304 unsigned &MinorVersion, 2305 bool &Hashed, 2306 std::string &UserInfo) { 2307 SmallVector<StringRef, 5> Args; 2308 Arg.split(Args, ':', 5); 2309 if (Args.size() < 5) 2310 return true; 2311 2312 BlockName = std::string(Args[0]); 2313 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2314 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2315 if (Args[3].getAsInteger(2, Hashed)) return true; 2316 if (Args.size() > 4) 2317 UserInfo = std::string(Args[4]); 2318 return false; 2319 } 2320 2321 /// Return a table that associates command line option specifiers with the 2322 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2323 /// intentionally missing, as this case is handled separately from other 2324 /// frontend options. 2325 static const auto &getFrontendActionTable() { 2326 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2327 {frontend::ASTDeclList, OPT_ast_list}, 2328 2329 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2330 {frontend::ASTDump, OPT_ast_dump_all}, 2331 {frontend::ASTDump, OPT_ast_dump_EQ}, 2332 {frontend::ASTDump, OPT_ast_dump}, 2333 {frontend::ASTDump, OPT_ast_dump_lookups}, 2334 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2335 2336 {frontend::ASTPrint, OPT_ast_print}, 2337 {frontend::ASTView, OPT_ast_view}, 2338 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2339 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2340 {frontend::DumpTokens, OPT_dump_tokens}, 2341 {frontend::EmitAssembly, OPT_S}, 2342 {frontend::EmitBC, OPT_emit_llvm_bc}, 2343 {frontend::EmitHTML, OPT_emit_html}, 2344 {frontend::EmitLLVM, OPT_emit_llvm}, 2345 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2346 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2347 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2348 {frontend::EmitObj, OPT_emit_obj}, 2349 2350 {frontend::FixIt, OPT_fixit_EQ}, 2351 {frontend::FixIt, OPT_fixit}, 2352 2353 {frontend::GenerateModule, OPT_emit_module}, 2354 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2355 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2356 {frontend::GeneratePCH, OPT_emit_pch}, 2357 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2358 {frontend::InitOnly, OPT_init_only}, 2359 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2360 {frontend::ModuleFileInfo, OPT_module_file_info}, 2361 {frontend::VerifyPCH, OPT_verify_pch}, 2362 {frontend::PrintPreamble, OPT_print_preamble}, 2363 {frontend::PrintPreprocessedInput, OPT_E}, 2364 {frontend::TemplightDump, OPT_templight_dump}, 2365 {frontend::RewriteMacros, OPT_rewrite_macros}, 2366 {frontend::RewriteObjC, OPT_rewrite_objc}, 2367 {frontend::RewriteTest, OPT_rewrite_test}, 2368 {frontend::RunAnalysis, OPT_analyze}, 2369 {frontend::MigrateSource, OPT_migrate}, 2370 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2371 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2372 OPT_print_dependency_directives_minimized_source}, 2373 }; 2374 2375 return Table; 2376 } 2377 2378 /// Maps command line option to frontend action. 2379 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2380 for (const auto &ActionOpt : getFrontendActionTable()) 2381 if (ActionOpt.second == Opt.getID()) 2382 return ActionOpt.first; 2383 2384 return None; 2385 } 2386 2387 /// Maps frontend action to command line option. 2388 static Optional<OptSpecifier> 2389 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2390 for (const auto &ActionOpt : getFrontendActionTable()) 2391 if (ActionOpt.first == ProgramAction) 2392 return OptSpecifier(ActionOpt.second); 2393 2394 return None; 2395 } 2396 2397 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2398 SmallVectorImpl<const char *> &Args, 2399 CompilerInvocation::StringAllocator SA, 2400 bool IsHeader) { 2401 const FrontendOptions &FrontendOpts = Opts; 2402 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2403 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2404 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2405 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2406 MERGER, EXTRACTOR, TABLE_INDEX) \ 2407 GENERATE_OPTION_WITH_MARSHALLING( \ 2408 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2409 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2410 #include "clang/Driver/Options.inc" 2411 #undef FRONTEND_OPTION_WITH_MARSHALLING 2412 2413 Optional<OptSpecifier> ProgramActionOpt = 2414 getProgramActionOpt(Opts.ProgramAction); 2415 2416 // Generating a simple flag covers most frontend actions. 2417 std::function<void()> GenerateProgramAction = [&]() { 2418 GenerateArg(Args, *ProgramActionOpt, SA); 2419 }; 2420 2421 if (!ProgramActionOpt) { 2422 // PluginAction is the only program action handled separately. 2423 assert(Opts.ProgramAction == frontend::PluginAction && 2424 "Frontend action without option."); 2425 GenerateProgramAction = [&]() { 2426 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2427 }; 2428 } 2429 2430 // FIXME: Simplify the complex 'AST dump' command line. 2431 if (Opts.ProgramAction == frontend::ASTDump) { 2432 GenerateProgramAction = [&]() { 2433 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2434 // marshalling infrastructure. 2435 2436 if (Opts.ASTDumpFormat != ADOF_Default) { 2437 StringRef Format; 2438 switch (Opts.ASTDumpFormat) { 2439 case ADOF_Default: 2440 llvm_unreachable("Default AST dump format."); 2441 case ADOF_JSON: 2442 Format = "json"; 2443 break; 2444 } 2445 2446 if (Opts.ASTDumpAll) 2447 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2448 if (Opts.ASTDumpDecls) 2449 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2450 } else { 2451 if (Opts.ASTDumpAll) 2452 GenerateArg(Args, OPT_ast_dump_all, SA); 2453 if (Opts.ASTDumpDecls) 2454 GenerateArg(Args, OPT_ast_dump, SA); 2455 } 2456 }; 2457 } 2458 2459 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2460 GenerateProgramAction = [&]() { 2461 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2462 }; 2463 } 2464 2465 GenerateProgramAction(); 2466 2467 for (const auto &PluginArgs : Opts.PluginArgs) 2468 for (const auto &PluginArg : PluginArgs.second) 2469 GenerateArg(Args, OPT_plugin_arg, PluginArgs.first + PluginArg, SA); 2470 2471 for (const auto &Ext : Opts.ModuleFileExtensions) 2472 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2473 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2474 2475 if (!Opts.CodeCompletionAt.FileName.empty()) 2476 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2477 SA); 2478 2479 for (const auto &Plugin : Opts.Plugins) 2480 GenerateArg(Args, OPT_load, Plugin, SA); 2481 2482 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2483 2484 for (const auto &ModuleFile : Opts.ModuleFiles) 2485 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2486 2487 if (Opts.AuxTargetCPU.hasValue()) 2488 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2489 2490 if (Opts.AuxTargetFeatures.hasValue()) 2491 for (const auto &Feature : *Opts.AuxTargetFeatures) 2492 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2493 2494 { 2495 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2496 StringRef ModuleMap = 2497 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2498 StringRef Header = IsHeader ? "-header" : ""; 2499 2500 StringRef Lang; 2501 switch (Opts.DashX.getLanguage()) { 2502 case Language::C: 2503 Lang = "c"; 2504 break; 2505 case Language::OpenCL: 2506 Lang = "cl"; 2507 break; 2508 case Language::CUDA: 2509 Lang = "cuda"; 2510 break; 2511 case Language::HIP: 2512 Lang = "hip"; 2513 break; 2514 case Language::CXX: 2515 Lang = "c++"; 2516 break; 2517 case Language::ObjC: 2518 Lang = "objective-c"; 2519 break; 2520 case Language::ObjCXX: 2521 Lang = "objective-c++"; 2522 break; 2523 case Language::RenderScript: 2524 Lang = "renderscript"; 2525 break; 2526 case Language::Asm: 2527 Lang = "assembler-with-cpp"; 2528 break; 2529 case Language::Unknown: 2530 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2531 "Generating -x argument for unknown language (not precompiled)."); 2532 Lang = "ast"; 2533 break; 2534 case Language::LLVM_IR: 2535 Lang = "ir"; 2536 break; 2537 } 2538 2539 GenerateArg(Args, OPT_x, Lang + Header + ModuleMap + Preprocessed, SA); 2540 } 2541 2542 // OPT_INPUT has a unique class, generate it directly. 2543 for (const auto &Input : Opts.Inputs) 2544 Args.push_back(SA(Input.getFile())); 2545 } 2546 2547 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2548 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2549 FrontendOptions &FrontendOpts = Opts; 2550 bool Success = true; 2551 unsigned NumErrorsBefore = Diags.getNumErrors(); 2552 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2553 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2554 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2555 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2556 MERGER, EXTRACTOR, TABLE_INDEX) \ 2557 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2558 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2559 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2560 MERGER, TABLE_INDEX) 2561 #include "clang/Driver/Options.inc" 2562 #undef FRONTEND_OPTION_WITH_MARSHALLING 2563 2564 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2565 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2566 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2567 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2568 assert(ProgramAction && "Option specifier not in Action_Group."); 2569 2570 if (ProgramAction == frontend::ASTDump && 2571 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2572 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2573 .CaseLower("default", ADOF_Default) 2574 .CaseLower("json", ADOF_JSON) 2575 .Default(std::numeric_limits<unsigned>::max()); 2576 2577 if (Val != std::numeric_limits<unsigned>::max()) 2578 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2579 else { 2580 Diags.Report(diag::err_drv_invalid_value) 2581 << A->getAsString(Args) << A->getValue(); 2582 Opts.ASTDumpFormat = ADOF_Default; 2583 } 2584 } 2585 2586 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2587 Opts.FixItSuffix = A->getValue(); 2588 2589 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2590 StringRef ArgStr = 2591 Args.hasArg(OPT_interface_stub_version_EQ) 2592 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2593 : "experimental-ifs-v2"; 2594 if (ArgStr == "experimental-yaml-elf-v1" || 2595 ArgStr == "experimental-ifs-v1" || 2596 ArgStr == "experimental-tapi-elf-v1") { 2597 std::string ErrorMessage = 2598 "Invalid interface stub format: " + ArgStr.str() + 2599 " is deprecated."; 2600 Diags.Report(diag::err_drv_invalid_value) 2601 << "Must specify a valid interface stub format type, ie: " 2602 "-interface-stub-version=experimental-ifs-v2" 2603 << ErrorMessage; 2604 ProgramAction = frontend::ParseSyntaxOnly; 2605 } else if (!ArgStr.startswith("experimental-ifs-")) { 2606 std::string ErrorMessage = 2607 "Invalid interface stub format: " + ArgStr.str() + "."; 2608 Diags.Report(diag::err_drv_invalid_value) 2609 << "Must specify a valid interface stub format type, ie: " 2610 "-interface-stub-version=experimental-ifs-v2" 2611 << ErrorMessage; 2612 ProgramAction = frontend::ParseSyntaxOnly; 2613 } 2614 } 2615 2616 Opts.ProgramAction = *ProgramAction; 2617 } 2618 2619 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2620 Opts.Plugins.emplace_back(A->getValue(0)); 2621 Opts.ProgramAction = frontend::PluginAction; 2622 Opts.ActionName = A->getValue(); 2623 } 2624 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2625 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2626 2627 for (const std::string &Arg : 2628 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2629 std::string BlockName; 2630 unsigned MajorVersion; 2631 unsigned MinorVersion; 2632 bool Hashed; 2633 std::string UserInfo; 2634 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2635 MinorVersion, Hashed, UserInfo)) { 2636 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2637 2638 continue; 2639 } 2640 2641 // Add the testing module file extension. 2642 Opts.ModuleFileExtensions.push_back( 2643 std::make_shared<TestModuleFileExtension>( 2644 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2645 } 2646 2647 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2648 Opts.CodeCompletionAt = 2649 ParsedSourceLocation::FromString(A->getValue()); 2650 if (Opts.CodeCompletionAt.FileName.empty()) 2651 Diags.Report(diag::err_drv_invalid_value) 2652 << A->getAsString(Args) << A->getValue(); 2653 } 2654 2655 Opts.Plugins = Args.getAllArgValues(OPT_load); 2656 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2657 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2658 // Only the -fmodule-file=<file> form. 2659 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2660 StringRef Val = A->getValue(); 2661 if (Val.find('=') == StringRef::npos) 2662 Opts.ModuleFiles.push_back(std::string(Val)); 2663 } 2664 2665 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2666 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2667 << "-emit-module"; 2668 2669 if (Args.hasArg(OPT_aux_target_cpu)) 2670 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2671 if (Args.hasArg(OPT_aux_target_feature)) 2672 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2673 2674 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2675 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2676 Diags.Report(diag::err_drv_argument_not_allowed_with) 2677 << "ARC migration" << "ObjC migration"; 2678 } 2679 2680 InputKind DashX(Language::Unknown); 2681 if (const Arg *A = Args.getLastArg(OPT_x)) { 2682 StringRef XValue = A->getValue(); 2683 2684 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2685 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2686 bool Preprocessed = XValue.consume_back("-cpp-output"); 2687 bool ModuleMap = XValue.consume_back("-module-map"); 2688 IsHeaderFile = !Preprocessed && !ModuleMap && 2689 XValue != "precompiled-header" && 2690 XValue.consume_back("-header"); 2691 2692 // Principal languages. 2693 DashX = llvm::StringSwitch<InputKind>(XValue) 2694 .Case("c", Language::C) 2695 .Case("cl", Language::OpenCL) 2696 .Case("cuda", Language::CUDA) 2697 .Case("hip", Language::HIP) 2698 .Case("c++", Language::CXX) 2699 .Case("objective-c", Language::ObjC) 2700 .Case("objective-c++", Language::ObjCXX) 2701 .Case("renderscript", Language::RenderScript) 2702 .Default(Language::Unknown); 2703 2704 // "objc[++]-cpp-output" is an acceptable synonym for 2705 // "objective-c[++]-cpp-output". 2706 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2707 DashX = llvm::StringSwitch<InputKind>(XValue) 2708 .Case("objc", Language::ObjC) 2709 .Case("objc++", Language::ObjCXX) 2710 .Default(Language::Unknown); 2711 2712 // Some special cases cannot be combined with suffixes. 2713 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2714 DashX = llvm::StringSwitch<InputKind>(XValue) 2715 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2716 .Case("assembler-with-cpp", Language::Asm) 2717 .Cases("ast", "pcm", "precompiled-header", 2718 InputKind(Language::Unknown, InputKind::Precompiled)) 2719 .Case("ir", Language::LLVM_IR) 2720 .Default(Language::Unknown); 2721 2722 if (DashX.isUnknown()) 2723 Diags.Report(diag::err_drv_invalid_value) 2724 << A->getAsString(Args) << A->getValue(); 2725 2726 if (Preprocessed) 2727 DashX = DashX.getPreprocessed(); 2728 if (ModuleMap) 2729 DashX = DashX.withFormat(InputKind::ModuleMap); 2730 } 2731 2732 // '-' is the default input if none is given. 2733 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2734 Opts.Inputs.clear(); 2735 if (Inputs.empty()) 2736 Inputs.push_back("-"); 2737 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2738 InputKind IK = DashX; 2739 if (IK.isUnknown()) { 2740 IK = FrontendOptions::getInputKindForExtension( 2741 StringRef(Inputs[i]).rsplit('.').second); 2742 // FIXME: Warn on this? 2743 if (IK.isUnknown()) 2744 IK = Language::C; 2745 // FIXME: Remove this hack. 2746 if (i == 0) 2747 DashX = IK; 2748 } 2749 2750 bool IsSystem = false; 2751 2752 // The -emit-module action implicitly takes a module map. 2753 if (Opts.ProgramAction == frontend::GenerateModule && 2754 IK.getFormat() == InputKind::Source) { 2755 IK = IK.withFormat(InputKind::ModuleMap); 2756 IsSystem = Opts.IsSystemModule; 2757 } 2758 2759 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2760 } 2761 2762 Opts.DashX = DashX; 2763 2764 return Diags.getNumErrors() == NumErrorsBefore; 2765 } 2766 2767 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2768 void *MainAddr) { 2769 std::string ClangExecutable = 2770 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2771 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2772 } 2773 2774 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2775 SmallVectorImpl<const char *> &Args, 2776 CompilerInvocation::StringAllocator SA) { 2777 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2778 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2779 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2780 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2781 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2782 MERGER, EXTRACTOR, TABLE_INDEX) \ 2783 GENERATE_OPTION_WITH_MARSHALLING( \ 2784 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2785 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2786 #include "clang/Driver/Options.inc" 2787 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2788 2789 if (Opts.UseLibcxx) 2790 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2791 2792 if (!Opts.ModuleCachePath.empty()) 2793 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2794 2795 for (const auto &File : Opts.PrebuiltModuleFiles) 2796 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2797 2798 for (const auto &Path : Opts.PrebuiltModulePaths) 2799 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2800 2801 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2802 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2803 2804 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2805 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2806 llvm::Optional<bool> IsFramework, 2807 llvm::Optional<bool> IgnoreSysRoot) { 2808 return llvm::find(Groups, Entry.Group) != Groups.end() && 2809 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2810 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2811 }; 2812 2813 auto It = Opts.UserEntries.begin(); 2814 auto End = Opts.UserEntries.end(); 2815 2816 // Add -I..., -F..., and -index-header-map options in order. 2817 for (; It < End && 2818 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2819 ++It) { 2820 OptSpecifier Opt = [It, Matches]() { 2821 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2822 return OPT_F; 2823 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2824 return OPT_I; 2825 if (Matches(*It, frontend::Angled, true, true)) 2826 return OPT_F; 2827 if (Matches(*It, frontend::Angled, false, true)) 2828 return OPT_I; 2829 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2830 }(); 2831 2832 if (It->Group == frontend::IndexHeaderMap) 2833 GenerateArg(Args, OPT_index_header_map, SA); 2834 GenerateArg(Args, Opt, It->Path, SA); 2835 }; 2836 2837 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2838 // have already been generated as "-I[xx]yy". If that's the case, their 2839 // position on command line was such that this has no semantic impact on 2840 // include paths. 2841 for (; It < End && 2842 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2843 ++It) { 2844 OptSpecifier Opt = 2845 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2846 GenerateArg(Args, Opt, It->Path, SA); 2847 } 2848 2849 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2850 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2851 // command line was such that this has no semantic impact on include paths. 2852 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2853 GenerateArg(Args, OPT_idirafter, It->Path, SA); 2854 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 2855 GenerateArg(Args, OPT_iquote, It->Path, SA); 2856 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 2857 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 2858 It->Path, SA); 2859 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 2860 GenerateArg(Args, OPT_iframework, It->Path, SA); 2861 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 2862 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 2863 2864 // Add the paths for the various language specific isystem flags. 2865 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 2866 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 2867 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 2868 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 2869 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 2870 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 2871 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 2872 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 2873 2874 // Add the internal paths from a driver that detects standard include paths. 2875 // Note: Some paths that came from "-internal-isystem" arguments may have 2876 // already been generated as "-isystem". If that's the case, their position on 2877 // command line was such that this has no semantic impact on include paths. 2878 for (; It < End && 2879 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 2880 ++It) { 2881 OptSpecifier Opt = It->Group == frontend::System 2882 ? OPT_internal_isystem 2883 : OPT_internal_externc_isystem; 2884 GenerateArg(Args, Opt, It->Path, SA); 2885 } 2886 2887 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 2888 2889 // Add the path prefixes which are implicitly treated as being system headers. 2890 for (const auto &P : Opts.SystemHeaderPrefixes) { 2891 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 2892 : OPT_no_system_header_prefix; 2893 GenerateArg(Args, Opt, P.Prefix, SA); 2894 } 2895 2896 for (const std::string &F : Opts.VFSOverlayFiles) 2897 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 2898 } 2899 2900 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2901 DiagnosticsEngine &Diags, 2902 const std::string &WorkingDir) { 2903 HeaderSearchOptions *HeaderSearchOpts = &Opts; 2904 bool Success = true; 2905 2906 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2907 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2908 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2909 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2910 MERGER, EXTRACTOR, TABLE_INDEX) \ 2911 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2912 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2913 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2914 MERGER, TABLE_INDEX) 2915 #include "clang/Driver/Options.inc" 2916 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2917 2918 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2919 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2920 2921 // Canonicalize -fmodules-cache-path before storing it. 2922 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2923 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2924 if (WorkingDir.empty()) 2925 llvm::sys::fs::make_absolute(P); 2926 else 2927 llvm::sys::fs::make_absolute(WorkingDir, P); 2928 } 2929 llvm::sys::path::remove_dots(P); 2930 Opts.ModuleCachePath = std::string(P.str()); 2931 2932 // Only the -fmodule-file=<name>=<file> form. 2933 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2934 StringRef Val = A->getValue(); 2935 if (Val.find('=') != StringRef::npos){ 2936 auto Split = Val.split('='); 2937 Opts.PrebuiltModuleFiles.insert( 2938 {std::string(Split.first), std::string(Split.second)}); 2939 } 2940 } 2941 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2942 Opts.AddPrebuiltModulePath(A->getValue()); 2943 2944 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2945 StringRef MacroDef = A->getValue(); 2946 Opts.ModulesIgnoreMacros.insert( 2947 llvm::CachedHashString(MacroDef.split('=').first)); 2948 } 2949 2950 // Add -I..., -F..., and -index-header-map options in order. 2951 bool IsIndexHeaderMap = false; 2952 bool IsSysrootSpecified = 2953 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2954 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2955 if (A->getOption().matches(OPT_index_header_map)) { 2956 // -index-header-map applies to the next -I or -F. 2957 IsIndexHeaderMap = true; 2958 continue; 2959 } 2960 2961 frontend::IncludeDirGroup Group = 2962 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2963 2964 bool IsFramework = A->getOption().matches(OPT_F); 2965 std::string Path = A->getValue(); 2966 2967 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2968 SmallString<32> Buffer; 2969 llvm::sys::path::append(Buffer, Opts.Sysroot, 2970 llvm::StringRef(A->getValue()).substr(1)); 2971 Path = std::string(Buffer.str()); 2972 } 2973 2974 Opts.AddPath(Path, Group, IsFramework, 2975 /*IgnoreSysroot*/ true); 2976 IsIndexHeaderMap = false; 2977 } 2978 2979 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2980 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 2981 for (const auto *A : 2982 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 2983 if (A->getOption().matches(OPT_iprefix)) 2984 Prefix = A->getValue(); 2985 else if (A->getOption().matches(OPT_iwithprefix)) 2986 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 2987 else 2988 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 2989 } 2990 2991 for (const auto *A : Args.filtered(OPT_idirafter)) 2992 Opts.AddPath(A->getValue(), frontend::After, false, true); 2993 for (const auto *A : Args.filtered(OPT_iquote)) 2994 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 2995 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 2996 Opts.AddPath(A->getValue(), frontend::System, false, 2997 !A->getOption().matches(OPT_iwithsysroot)); 2998 for (const auto *A : Args.filtered(OPT_iframework)) 2999 Opts.AddPath(A->getValue(), frontend::System, true, true); 3000 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3001 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3002 /*IgnoreSysRoot=*/false); 3003 3004 // Add the paths for the various language specific isystem flags. 3005 for (const auto *A : Args.filtered(OPT_c_isystem)) 3006 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3007 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3008 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3009 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3010 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3011 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3012 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3013 3014 // Add the internal paths from a driver that detects standard include paths. 3015 for (const auto *A : 3016 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3017 frontend::IncludeDirGroup Group = frontend::System; 3018 if (A->getOption().matches(OPT_internal_externc_isystem)) 3019 Group = frontend::ExternCSystem; 3020 Opts.AddPath(A->getValue(), Group, false, true); 3021 } 3022 3023 // Add the path prefixes which are implicitly treated as being system headers. 3024 for (const auto *A : 3025 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3026 Opts.AddSystemHeaderPrefix( 3027 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3028 3029 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3030 Opts.AddVFSOverlayFile(A->getValue()); 3031 3032 return Success; 3033 } 3034 3035 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 3036 const llvm::Triple &T, 3037 std::vector<std::string> &Includes, 3038 LangStandard::Kind LangStd) { 3039 // Set some properties which depend solely on the input kind; it would be nice 3040 // to move these to the language standard, and have the driver resolve the 3041 // input kind + language standard. 3042 // 3043 // FIXME: Perhaps a better model would be for a single source file to have 3044 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 3045 // simultaneously active? 3046 if (IK.getLanguage() == Language::Asm) { 3047 Opts.AsmPreprocessor = 1; 3048 } else if (IK.isObjectiveC()) { 3049 Opts.ObjC = 1; 3050 } 3051 3052 if (LangStd == LangStandard::lang_unspecified) { 3053 // Based on the base language, pick one. 3054 switch (IK.getLanguage()) { 3055 case Language::Unknown: 3056 case Language::LLVM_IR: 3057 llvm_unreachable("Invalid input kind!"); 3058 case Language::OpenCL: 3059 LangStd = LangStandard::lang_opencl10; 3060 break; 3061 case Language::CUDA: 3062 LangStd = LangStandard::lang_cuda; 3063 break; 3064 case Language::Asm: 3065 case Language::C: 3066 #if defined(CLANG_DEFAULT_STD_C) 3067 LangStd = CLANG_DEFAULT_STD_C; 3068 #else 3069 // The PS4 uses C99 as the default C standard. 3070 if (T.isPS4()) 3071 LangStd = LangStandard::lang_gnu99; 3072 else 3073 LangStd = LangStandard::lang_gnu17; 3074 #endif 3075 break; 3076 case Language::ObjC: 3077 #if defined(CLANG_DEFAULT_STD_C) 3078 LangStd = CLANG_DEFAULT_STD_C; 3079 #else 3080 LangStd = LangStandard::lang_gnu11; 3081 #endif 3082 break; 3083 case Language::CXX: 3084 case Language::ObjCXX: 3085 #if defined(CLANG_DEFAULT_STD_CXX) 3086 LangStd = CLANG_DEFAULT_STD_CXX; 3087 #else 3088 LangStd = LangStandard::lang_gnucxx14; 3089 #endif 3090 break; 3091 case Language::RenderScript: 3092 LangStd = LangStandard::lang_c99; 3093 break; 3094 case Language::HIP: 3095 LangStd = LangStandard::lang_hip; 3096 break; 3097 } 3098 } 3099 3100 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3101 Opts.LangStd = LangStd; 3102 Opts.LineComment = Std.hasLineComments(); 3103 Opts.C99 = Std.isC99(); 3104 Opts.C11 = Std.isC11(); 3105 Opts.C17 = Std.isC17(); 3106 Opts.C2x = Std.isC2x(); 3107 Opts.CPlusPlus = Std.isCPlusPlus(); 3108 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 3109 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 3110 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 3111 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 3112 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 3113 Opts.GNUMode = Std.isGNUMode(); 3114 Opts.GNUCVersion = 0; 3115 Opts.HexFloats = Std.hasHexFloats(); 3116 Opts.ImplicitInt = Std.hasImplicitInt(); 3117 3118 Opts.CPlusPlusModules = Opts.CPlusPlus20; 3119 3120 // Set OpenCL Version. 3121 Opts.OpenCL = Std.isOpenCL(); 3122 if (LangStd == LangStandard::lang_opencl10) 3123 Opts.OpenCLVersion = 100; 3124 else if (LangStd == LangStandard::lang_opencl11) 3125 Opts.OpenCLVersion = 110; 3126 else if (LangStd == LangStandard::lang_opencl12) 3127 Opts.OpenCLVersion = 120; 3128 else if (LangStd == LangStandard::lang_opencl20) 3129 Opts.OpenCLVersion = 200; 3130 else if (LangStd == LangStandard::lang_opencl30) 3131 Opts.OpenCLVersion = 300; 3132 else if (LangStd == LangStandard::lang_openclcpp) 3133 Opts.OpenCLCPlusPlusVersion = 100; 3134 3135 // OpenCL has some additional defaults. 3136 if (Opts.OpenCL) { 3137 Opts.AltiVec = 0; 3138 Opts.ZVector = 0; 3139 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3140 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 3141 Opts.OpenCLPipe = Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3142 Opts.OpenCLGenericAddressSpace = 3143 Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3144 3145 // Include default header file for OpenCL. 3146 if (Opts.IncludeDefaultHeader) { 3147 if (Opts.DeclareOpenCLBuiltins) { 3148 // Only include base header file for builtin types and constants. 3149 Includes.push_back("opencl-c-base.h"); 3150 } else { 3151 Includes.push_back("opencl-c.h"); 3152 } 3153 } 3154 } 3155 3156 Opts.HIP = IK.getLanguage() == Language::HIP; 3157 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 3158 if (Opts.HIP) { 3159 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 3160 // fuses multiplication/addition instructions without contract flag from 3161 // device library functions in LLVM bitcode, which causes accuracy loss in 3162 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 3163 // For device library functions in bitcode to work, 'Strict' or 'Standard' 3164 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 3165 // FP contract option is used to allow fuse across statements in frontend 3166 // whereas respecting contract flag in backend. 3167 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3168 } else if (Opts.CUDA) { 3169 // Allow fuse across statements disregarding pragmas. 3170 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3171 } 3172 3173 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 3174 3175 // OpenCL and C++ both have bool, true, false keywords. 3176 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 3177 3178 // OpenCL has half keyword 3179 Opts.Half = Opts.OpenCL; 3180 } 3181 3182 /// Check if input file kind and language standard are compatible. 3183 static bool IsInputCompatibleWithStandard(InputKind IK, 3184 const LangStandard &S) { 3185 switch (IK.getLanguage()) { 3186 case Language::Unknown: 3187 case Language::LLVM_IR: 3188 llvm_unreachable("should not parse language flags for this input"); 3189 3190 case Language::C: 3191 case Language::ObjC: 3192 case Language::RenderScript: 3193 return S.getLanguage() == Language::C; 3194 3195 case Language::OpenCL: 3196 return S.getLanguage() == Language::OpenCL; 3197 3198 case Language::CXX: 3199 case Language::ObjCXX: 3200 return S.getLanguage() == Language::CXX; 3201 3202 case Language::CUDA: 3203 // FIXME: What -std= values should be permitted for CUDA compilations? 3204 return S.getLanguage() == Language::CUDA || 3205 S.getLanguage() == Language::CXX; 3206 3207 case Language::HIP: 3208 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3209 3210 case Language::Asm: 3211 // Accept (and ignore) all -std= values. 3212 // FIXME: The -std= value is not ignored; it affects the tokenization 3213 // and preprocessing rules if we're preprocessing this asm input. 3214 return true; 3215 } 3216 3217 llvm_unreachable("unexpected input language"); 3218 } 3219 3220 /// Get language name for given input kind. 3221 static const StringRef GetInputKindName(InputKind IK) { 3222 switch (IK.getLanguage()) { 3223 case Language::C: 3224 return "C"; 3225 case Language::ObjC: 3226 return "Objective-C"; 3227 case Language::CXX: 3228 return "C++"; 3229 case Language::ObjCXX: 3230 return "Objective-C++"; 3231 case Language::OpenCL: 3232 return "OpenCL"; 3233 case Language::CUDA: 3234 return "CUDA"; 3235 case Language::RenderScript: 3236 return "RenderScript"; 3237 case Language::HIP: 3238 return "HIP"; 3239 3240 case Language::Asm: 3241 return "Asm"; 3242 case Language::LLVM_IR: 3243 return "LLVM IR"; 3244 3245 case Language::Unknown: 3246 break; 3247 } 3248 llvm_unreachable("unknown input language"); 3249 } 3250 3251 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3252 SmallVectorImpl<const char *> &Args, 3253 StringAllocator SA, 3254 const llvm::Triple &T) { 3255 OptSpecifier StdOpt; 3256 switch (Opts.LangStd) { 3257 case LangStandard::lang_opencl10: 3258 case LangStandard::lang_opencl11: 3259 case LangStandard::lang_opencl12: 3260 case LangStandard::lang_opencl20: 3261 case LangStandard::lang_opencl30: 3262 case LangStandard::lang_openclcpp: 3263 StdOpt = OPT_cl_std_EQ; 3264 break; 3265 default: 3266 StdOpt = OPT_std_EQ; 3267 break; 3268 } 3269 3270 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3271 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3272 3273 if (Opts.IncludeDefaultHeader) 3274 GenerateArg(Args, OPT_finclude_default_header, SA); 3275 if (Opts.DeclareOpenCLBuiltins) 3276 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3277 3278 const LangOptions *LangOpts = &Opts; 3279 3280 #define LANG_OPTION_WITH_MARSHALLING( \ 3281 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3282 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3283 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3284 MERGER, EXTRACTOR, TABLE_INDEX) \ 3285 GENERATE_OPTION_WITH_MARSHALLING( \ 3286 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3287 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3288 #include "clang/Driver/Options.inc" 3289 #undef LANG_OPTION_WITH_MARSHALLING 3290 3291 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3292 3293 if (Opts.ObjC) { 3294 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3295 3296 if (Opts.GC == LangOptions::GCOnly) 3297 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3298 else if (Opts.GC == LangOptions::HybridGC) 3299 GenerateArg(Args, OPT_fobjc_gc, SA); 3300 else if (Opts.ObjCAutoRefCount == 1) 3301 GenerateArg(Args, OPT_fobjc_arc, SA); 3302 3303 if (Opts.ObjCWeakRuntime) 3304 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3305 3306 if (Opts.ObjCWeak) 3307 GenerateArg(Args, OPT_fobjc_weak, SA); 3308 3309 if (Opts.ObjCSubscriptingLegacyRuntime) 3310 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3311 } 3312 3313 if (Opts.GNUCVersion != 0) { 3314 unsigned Major = Opts.GNUCVersion / 100 / 100; 3315 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3316 unsigned Patch = Opts.GNUCVersion % 100; 3317 GenerateArg(Args, OPT_fgnuc_version_EQ, 3318 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3319 } 3320 3321 if (Opts.IgnoreXCOFFVisibility) 3322 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3323 3324 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3325 GenerateArg(Args, OPT_ftrapv, SA); 3326 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3327 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3328 GenerateArg(Args, OPT_fwrapv, SA); 3329 } 3330 3331 if (Opts.MSCompatibilityVersion != 0) { 3332 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3333 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3334 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3335 GenerateArg(Args, OPT_fms_compatibility_version, 3336 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3337 } 3338 3339 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3340 if (!Opts.Trigraphs) 3341 GenerateArg(Args, OPT_fno_trigraphs, SA); 3342 } else { 3343 if (Opts.Trigraphs) 3344 GenerateArg(Args, OPT_ftrigraphs, SA); 3345 } 3346 3347 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3348 GenerateArg(Args, OPT_fblocks, SA); 3349 3350 if (Opts.ConvergentFunctions && 3351 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3352 GenerateArg(Args, OPT_fconvergent_functions, SA); 3353 3354 if (Opts.NoBuiltin && !Opts.Freestanding) 3355 GenerateArg(Args, OPT_fno_builtin, SA); 3356 3357 if (!Opts.NoBuiltin) 3358 for (const auto &Func : Opts.NoBuiltinFuncs) 3359 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3360 3361 if (Opts.LongDoubleSize == 128) 3362 GenerateArg(Args, OPT_mlong_double_128, SA); 3363 else if (Opts.LongDoubleSize == 64) 3364 GenerateArg(Args, OPT_mlong_double_64, SA); 3365 3366 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3367 3368 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3369 // '-fopenmp-targets='. 3370 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3371 GenerateArg(Args, OPT_fopenmp, SA); 3372 3373 if (Opts.OpenMP != 50) 3374 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3375 3376 if (!Opts.OpenMPUseTLS) 3377 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3378 3379 if (Opts.OpenMPIsDevice) 3380 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3381 3382 if (Opts.OpenMPIRBuilder) 3383 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3384 } 3385 3386 if (Opts.OpenMPSimd) { 3387 GenerateArg(Args, OPT_fopenmp_simd, SA); 3388 3389 if (Opts.OpenMP != 50) 3390 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3391 } 3392 3393 if (Opts.OpenMPCUDANumSMs != 0) 3394 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3395 Twine(Opts.OpenMPCUDANumSMs), SA); 3396 3397 if (Opts.OpenMPCUDABlocksPerSM != 0) 3398 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3399 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3400 3401 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3402 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3403 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3404 3405 if (!Opts.OMPTargetTriples.empty()) { 3406 std::string Targets; 3407 llvm::raw_string_ostream OS(Targets); 3408 llvm::interleave( 3409 Opts.OMPTargetTriples, OS, 3410 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3411 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3412 } 3413 3414 if (!Opts.OMPHostIRFile.empty()) 3415 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3416 3417 if (Opts.OpenMPCUDAMode) 3418 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3419 3420 if (Opts.OpenMPCUDATargetParallel) 3421 GenerateArg(Args, OPT_fopenmp_cuda_parallel_target_regions, SA); 3422 3423 if (Opts.OpenMPCUDAForceFullRuntime) 3424 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3425 3426 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3427 // generated from CodeGenOptions. 3428 3429 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3430 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3431 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3432 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3433 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3434 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3435 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3436 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3437 3438 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3439 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3440 3441 // Conflating '-fsanitize-system-blacklist' and '-fsanitize-blacklist'. 3442 for (const std::string &F : Opts.NoSanitizeFiles) 3443 GenerateArg(Args, OPT_fsanitize_blacklist, F, SA); 3444 3445 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3446 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3447 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3448 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3449 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3450 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3451 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3452 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3453 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3454 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3455 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3456 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3457 3458 if (Opts.getSignReturnAddressScope() == 3459 LangOptions::SignReturnAddressScopeKind::All) 3460 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3461 else if (Opts.getSignReturnAddressScope() == 3462 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3463 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3464 3465 if (Opts.getSignReturnAddressKey() == 3466 LangOptions::SignReturnAddressKeyKind::BKey) 3467 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3468 } 3469 3470 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3471 InputKind IK, const llvm::Triple &T, 3472 std::vector<std::string> &Includes, 3473 DiagnosticsEngine &Diags) { 3474 unsigned NumErrorsBefore = Diags.getNumErrors(); 3475 3476 // FIXME: Cleanup per-file based stuff. 3477 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3478 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3479 LangStd = LangStandard::getLangKind(A->getValue()); 3480 if (LangStd == LangStandard::lang_unspecified) { 3481 Diags.Report(diag::err_drv_invalid_value) 3482 << A->getAsString(Args) << A->getValue(); 3483 // Report supported standards with short description. 3484 for (unsigned KindValue = 0; 3485 KindValue != LangStandard::lang_unspecified; 3486 ++KindValue) { 3487 const LangStandard &Std = LangStandard::getLangStandardForKind( 3488 static_cast<LangStandard::Kind>(KindValue)); 3489 if (IsInputCompatibleWithStandard(IK, Std)) { 3490 auto Diag = Diags.Report(diag::note_drv_use_standard); 3491 Diag << Std.getName() << Std.getDescription(); 3492 unsigned NumAliases = 0; 3493 #define LANGSTANDARD(id, name, lang, desc, features) 3494 #define LANGSTANDARD_ALIAS(id, alias) \ 3495 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3496 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3497 #include "clang/Basic/LangStandards.def" 3498 Diag << NumAliases; 3499 #define LANGSTANDARD(id, name, lang, desc, features) 3500 #define LANGSTANDARD_ALIAS(id, alias) \ 3501 if (KindValue == LangStandard::lang_##id) Diag << alias; 3502 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3503 #include "clang/Basic/LangStandards.def" 3504 } 3505 } 3506 } else { 3507 // Valid standard, check to make sure language and standard are 3508 // compatible. 3509 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3510 if (!IsInputCompatibleWithStandard(IK, Std)) { 3511 Diags.Report(diag::err_drv_argument_not_allowed_with) 3512 << A->getAsString(Args) << GetInputKindName(IK); 3513 } 3514 } 3515 } 3516 3517 // -cl-std only applies for OpenCL language standards. 3518 // Override the -std option in this case. 3519 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3520 LangStandard::Kind OpenCLLangStd 3521 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3522 .Cases("cl", "CL", LangStandard::lang_opencl10) 3523 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3524 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3525 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3526 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3527 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3528 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 3529 .Default(LangStandard::lang_unspecified); 3530 3531 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3532 Diags.Report(diag::err_drv_invalid_value) 3533 << A->getAsString(Args) << A->getValue(); 3534 } 3535 else 3536 LangStd = OpenCLLangStd; 3537 } 3538 3539 // These need to be parsed now. They are used to set OpenCL defaults. 3540 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3541 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3542 3543 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd); 3544 3545 // The key paths of codegen options defined in Options.td start with 3546 // "LangOpts->". Let's provide the expected variable name and type. 3547 LangOptions *LangOpts = &Opts; 3548 bool Success = true; 3549 3550 #define LANG_OPTION_WITH_MARSHALLING( \ 3551 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3552 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3553 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3554 MERGER, EXTRACTOR, TABLE_INDEX) \ 3555 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 3556 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3557 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 3558 MERGER, TABLE_INDEX) 3559 #include "clang/Driver/Options.inc" 3560 #undef LANG_OPTION_WITH_MARSHALLING 3561 3562 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3563 StringRef Name = A->getValue(); 3564 if (Name == "full" || Name == "branch") { 3565 Opts.CFProtectionBranch = 1; 3566 } 3567 } 3568 3569 if (Opts.ObjC) { 3570 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3571 StringRef value = arg->getValue(); 3572 if (Opts.ObjCRuntime.tryParse(value)) 3573 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3574 } 3575 3576 if (Args.hasArg(OPT_fobjc_gc_only)) 3577 Opts.setGC(LangOptions::GCOnly); 3578 else if (Args.hasArg(OPT_fobjc_gc)) 3579 Opts.setGC(LangOptions::HybridGC); 3580 else if (Args.hasArg(OPT_fobjc_arc)) { 3581 Opts.ObjCAutoRefCount = 1; 3582 if (!Opts.ObjCRuntime.allowsARC()) 3583 Diags.Report(diag::err_arc_unsupported_on_runtime); 3584 } 3585 3586 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3587 // whether the feature is actually enabled. This is predominantly 3588 // determined by -fobjc-runtime, but we allow it to be overridden 3589 // from the command line for testing purposes. 3590 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3591 Opts.ObjCWeakRuntime = 1; 3592 else 3593 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3594 3595 // ObjCWeak determines whether __weak is actually enabled. 3596 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3597 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3598 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3599 assert(!Opts.ObjCWeak); 3600 } else if (Opts.getGC() != LangOptions::NonGC) { 3601 Diags.Report(diag::err_objc_weak_with_gc); 3602 } else if (!Opts.ObjCWeakRuntime) { 3603 Diags.Report(diag::err_objc_weak_unsupported); 3604 } else { 3605 Opts.ObjCWeak = 1; 3606 } 3607 } else if (Opts.ObjCAutoRefCount) { 3608 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3609 } 3610 3611 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3612 Opts.ObjCSubscriptingLegacyRuntime = 3613 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3614 } 3615 3616 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3617 // Check that the version has 1 to 3 components and the minor and patch 3618 // versions fit in two decimal digits. 3619 VersionTuple GNUCVer; 3620 bool Invalid = GNUCVer.tryParse(A->getValue()); 3621 unsigned Major = GNUCVer.getMajor(); 3622 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3623 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3624 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3625 Diags.Report(diag::err_drv_invalid_value) 3626 << A->getAsString(Args) << A->getValue(); 3627 } 3628 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3629 } 3630 3631 // In AIX OS, the -mignore-xcoff-visibility is enable by default if there is 3632 // no -fvisibility=* option. 3633 // This is the reason why '-fvisibility' needs to be always generated: 3634 // its absence implies '-mignore-xcoff-visibility'. 3635 // 3636 // Suppose the original cc1 command line does contain '-fvisibility default': 3637 // '-mignore-xcoff-visibility' should not be implied. 3638 // * If '-fvisibility' is not generated (as most options with default values 3639 // don't), its absence would imply '-mignore-xcoff-visibility'. This changes 3640 // the command line semantics. 3641 // * If '-fvisibility' is generated regardless of its presence and value, 3642 // '-mignore-xcoff-visibility' won't be implied and the command line 3643 // semantics are kept intact. 3644 // 3645 // When the original cc1 command line does **not** contain '-fvisibility', 3646 // '-mignore-xcoff-visibility' is implied. The generated command line will 3647 // contain both '-fvisibility default' and '-mignore-xcoff-visibility' and 3648 // subsequent calls to `CreateFromArgs`/`generateCC1CommandLine` will always 3649 // produce the same arguments. 3650 3651 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 3652 !Args.hasArg(OPT_fvisibility))) 3653 Opts.IgnoreXCOFFVisibility = 1; 3654 3655 if (Args.hasArg(OPT_ftrapv)) { 3656 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3657 // Set the handler, if one is specified. 3658 Opts.OverflowHandler = 3659 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3660 } 3661 else if (Args.hasArg(OPT_fwrapv)) 3662 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3663 3664 Opts.MSCompatibilityVersion = 0; 3665 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3666 VersionTuple VT; 3667 if (VT.tryParse(A->getValue())) 3668 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3669 << A->getValue(); 3670 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3671 VT.getMinor().getValueOr(0) * 100000 + 3672 VT.getSubminor().getValueOr(0); 3673 } 3674 3675 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3676 // is specified, or -std is set to a conforming mode. 3677 // Trigraphs are disabled by default in c++1z onwards. 3678 // For z/OS, trigraphs are enabled by default (without regard to the above). 3679 Opts.Trigraphs = 3680 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3681 Opts.Trigraphs = 3682 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3683 3684 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3685 && Opts.OpenCLVersion == 200); 3686 3687 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3688 Opts.SYCLIsDevice || 3689 Args.hasArg(OPT_fconvergent_functions); 3690 3691 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3692 if (!Opts.NoBuiltin) 3693 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3694 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3695 ? 128 3696 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3697 if (Opts.FastRelaxedMath) 3698 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3699 llvm::sort(Opts.ModuleFeatures); 3700 3701 // -mrtd option 3702 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3703 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3704 Diags.Report(diag::err_drv_argument_not_allowed_with) 3705 << A->getSpelling() << "-fdefault-calling-conv"; 3706 else { 3707 if (T.getArch() != llvm::Triple::x86) 3708 Diags.Report(diag::err_drv_argument_not_allowed_with) 3709 << A->getSpelling() << T.getTriple(); 3710 else 3711 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3712 } 3713 } 3714 3715 // Check if -fopenmp is specified and set default version to 5.0. 3716 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3717 // Check if -fopenmp-simd is specified. 3718 bool IsSimdSpecified = 3719 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3720 /*Default=*/false); 3721 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3722 Opts.OpenMPUseTLS = 3723 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3724 Opts.OpenMPIsDevice = 3725 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3726 Opts.OpenMPIRBuilder = 3727 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3728 bool IsTargetSpecified = 3729 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3730 3731 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3732 3733 if (Opts.OpenMP || Opts.OpenMPSimd) { 3734 if (int Version = getLastArgIntValue( 3735 Args, OPT_fopenmp_version_EQ, 3736 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3737 Opts.OpenMP = Version; 3738 // Provide diagnostic when a given target is not expected to be an OpenMP 3739 // device or host. 3740 if (!Opts.OpenMPIsDevice) { 3741 switch (T.getArch()) { 3742 default: 3743 break; 3744 // Add unsupported host targets here: 3745 case llvm::Triple::nvptx: 3746 case llvm::Triple::nvptx64: 3747 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3748 break; 3749 } 3750 } 3751 } 3752 3753 // Set the flag to prevent the implementation from emitting device exception 3754 // handling code for those requiring so. 3755 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3756 Opts.OpenCLCPlusPlus) { 3757 Opts.Exceptions = 0; 3758 Opts.CXXExceptions = 0; 3759 } 3760 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3761 Opts.OpenMPCUDANumSMs = 3762 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3763 Opts.OpenMPCUDANumSMs, Diags); 3764 Opts.OpenMPCUDABlocksPerSM = 3765 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3766 Opts.OpenMPCUDABlocksPerSM, Diags); 3767 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3768 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3769 Opts.OpenMPCUDAReductionBufNum, Diags); 3770 } 3771 3772 // Get the OpenMP target triples if any. 3773 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3774 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3775 auto getArchPtrSize = [](const llvm::Triple &T) { 3776 if (T.isArch16Bit()) 3777 return Arch16Bit; 3778 if (T.isArch32Bit()) 3779 return Arch32Bit; 3780 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3781 return Arch64Bit; 3782 }; 3783 3784 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3785 llvm::Triple TT(A->getValue(i)); 3786 3787 if (TT.getArch() == llvm::Triple::UnknownArch || 3788 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3789 TT.getArch() == llvm::Triple::nvptx || 3790 TT.getArch() == llvm::Triple::nvptx64 || 3791 TT.getArch() == llvm::Triple::amdgcn || 3792 TT.getArch() == llvm::Triple::x86 || 3793 TT.getArch() == llvm::Triple::x86_64)) 3794 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3795 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3796 Diags.Report(diag::err_drv_incompatible_omp_arch) 3797 << A->getValue(i) << T.str(); 3798 else 3799 Opts.OMPTargetTriples.push_back(TT); 3800 } 3801 } 3802 3803 // Get OpenMP host file path if any and report if a non existent file is 3804 // found 3805 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3806 Opts.OMPHostIRFile = A->getValue(); 3807 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3808 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3809 << Opts.OMPHostIRFile; 3810 } 3811 3812 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3813 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3814 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3815 3816 // Set CUDA support for parallel execution of target regions for OpenMP target 3817 // NVPTX/AMDGCN if specified in options. 3818 Opts.OpenMPCUDATargetParallel = 3819 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3820 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 3821 3822 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3823 Opts.OpenMPCUDAForceFullRuntime = 3824 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3825 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3826 3827 // FIXME: Eliminate this dependency. 3828 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3829 OptSize = getOptimizationLevelSize(Args); 3830 Opts.Optimize = Opt != 0; 3831 Opts.OptimizeSize = OptSize != 0; 3832 3833 // This is the __NO_INLINE__ define, which just depends on things like the 3834 // optimization level and -fno-inline, not actually whether the backend has 3835 // inlining enabled. 3836 Opts.NoInlineDefine = !Opts.Optimize; 3837 if (Arg *InlineArg = Args.getLastArg( 3838 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3839 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3840 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3841 Opts.NoInlineDefine = true; 3842 3843 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3844 StringRef Val = A->getValue(); 3845 if (Val == "fast") 3846 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3847 else if (Val == "on") 3848 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3849 else if (Val == "off") 3850 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3851 else if (Val == "fast-honor-pragmas") 3852 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3853 else 3854 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3855 } 3856 3857 // Parse -fsanitize= arguments. 3858 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3859 Diags, Opts.Sanitize); 3860 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3861 std::vector<std::string> systemBlacklists = 3862 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3863 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3864 systemBlacklists.begin(), systemBlacklists.end()); 3865 3866 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3867 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3868 3869 StringRef Ver = A->getValue(); 3870 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3871 unsigned Major, Minor = 0; 3872 3873 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3874 // y or y.0 (4 <= y <= current version). 3875 if (!VerParts.first.startswith("0") && 3876 !VerParts.first.getAsInteger(10, Major) && 3877 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3878 (Major == 3 ? VerParts.second.size() == 1 && 3879 !VerParts.second.getAsInteger(10, Minor) 3880 : VerParts.first.size() == Ver.size() || 3881 VerParts.second == "0")) { 3882 // Got a valid version number. 3883 if (Major == 3 && Minor <= 8) 3884 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3885 else if (Major <= 4) 3886 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3887 else if (Major <= 6) 3888 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3889 else if (Major <= 7) 3890 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3891 else if (Major <= 9) 3892 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3893 else if (Major <= 11) 3894 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 3895 } else if (Ver != "latest") { 3896 Diags.Report(diag::err_drv_invalid_value) 3897 << A->getAsString(Args) << A->getValue(); 3898 } 3899 } 3900 3901 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3902 StringRef SignScope = A->getValue(); 3903 3904 if (SignScope.equals_lower("none")) 3905 Opts.setSignReturnAddressScope( 3906 LangOptions::SignReturnAddressScopeKind::None); 3907 else if (SignScope.equals_lower("all")) 3908 Opts.setSignReturnAddressScope( 3909 LangOptions::SignReturnAddressScopeKind::All); 3910 else if (SignScope.equals_lower("non-leaf")) 3911 Opts.setSignReturnAddressScope( 3912 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3913 else 3914 Diags.Report(diag::err_drv_invalid_value) 3915 << A->getAsString(Args) << SignScope; 3916 3917 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3918 StringRef SignKey = A->getValue(); 3919 if (!SignScope.empty() && !SignKey.empty()) { 3920 if (SignKey.equals_lower("a_key")) 3921 Opts.setSignReturnAddressKey( 3922 LangOptions::SignReturnAddressKeyKind::AKey); 3923 else if (SignKey.equals_lower("b_key")) 3924 Opts.setSignReturnAddressKey( 3925 LangOptions::SignReturnAddressKeyKind::BKey); 3926 else 3927 Diags.Report(diag::err_drv_invalid_value) 3928 << A->getAsString(Args) << SignKey; 3929 } 3930 } 3931 } 3932 3933 return Success && Diags.getNumErrors() == NumErrorsBefore; 3934 } 3935 3936 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3937 switch (Action) { 3938 case frontend::ASTDeclList: 3939 case frontend::ASTDump: 3940 case frontend::ASTPrint: 3941 case frontend::ASTView: 3942 case frontend::EmitAssembly: 3943 case frontend::EmitBC: 3944 case frontend::EmitHTML: 3945 case frontend::EmitLLVM: 3946 case frontend::EmitLLVMOnly: 3947 case frontend::EmitCodeGenOnly: 3948 case frontend::EmitObj: 3949 case frontend::FixIt: 3950 case frontend::GenerateModule: 3951 case frontend::GenerateModuleInterface: 3952 case frontend::GenerateHeaderModule: 3953 case frontend::GeneratePCH: 3954 case frontend::GenerateInterfaceStubs: 3955 case frontend::ParseSyntaxOnly: 3956 case frontend::ModuleFileInfo: 3957 case frontend::VerifyPCH: 3958 case frontend::PluginAction: 3959 case frontend::RewriteObjC: 3960 case frontend::RewriteTest: 3961 case frontend::RunAnalysis: 3962 case frontend::TemplightDump: 3963 case frontend::MigrateSource: 3964 return false; 3965 3966 case frontend::DumpCompilerOptions: 3967 case frontend::DumpRawTokens: 3968 case frontend::DumpTokens: 3969 case frontend::InitOnly: 3970 case frontend::PrintPreamble: 3971 case frontend::PrintPreprocessedInput: 3972 case frontend::RewriteMacros: 3973 case frontend::RunPreprocessorOnly: 3974 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3975 return true; 3976 } 3977 llvm_unreachable("invalid frontend action"); 3978 } 3979 3980 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 3981 SmallVectorImpl<const char *> &Args, 3982 CompilerInvocation::StringAllocator SA, 3983 const LangOptions &LangOpts, 3984 const FrontendOptions &FrontendOpts, 3985 const CodeGenOptions &CodeGenOpts) { 3986 PreprocessorOptions *PreprocessorOpts = &Opts; 3987 3988 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 3989 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3990 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3991 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3992 MERGER, EXTRACTOR, TABLE_INDEX) \ 3993 GENERATE_OPTION_WITH_MARSHALLING( \ 3994 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3995 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3996 #include "clang/Driver/Options.inc" 3997 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 3998 3999 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4000 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4001 4002 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4003 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4004 4005 for (const auto &MP : Opts.MacroPrefixMap) 4006 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 4007 4008 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4009 GenerateArg(Args, OPT_preamble_bytes_EQ, 4010 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4011 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4012 SA); 4013 4014 for (const auto &M : Opts.Macros) { 4015 // Don't generate __CET__ macro definitions. They are implied by the 4016 // -fcf-protection option that is generated elsewhere. 4017 if (M.first == "__CET__=1" && !M.second && 4018 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4019 continue; 4020 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4021 !CodeGenOpts.CFProtectionBranch) 4022 continue; 4023 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4024 CodeGenOpts.CFProtectionBranch) 4025 continue; 4026 4027 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4028 } 4029 4030 for (const auto &I : Opts.Includes) { 4031 // Don't generate OpenCL includes. They are implied by other flags that are 4032 // generated elsewhere. 4033 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4034 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4035 I == "opencl-c.h")) 4036 continue; 4037 4038 GenerateArg(Args, OPT_include, I, SA); 4039 } 4040 4041 for (const auto &CI : Opts.ChainedIncludes) 4042 GenerateArg(Args, OPT_chain_include, CI, SA); 4043 4044 for (const auto &RF : Opts.RemappedFiles) 4045 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4046 4047 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4048 // generated elsewhere. 4049 } 4050 4051 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4052 DiagnosticsEngine &Diags, 4053 frontend::ActionKind Action, 4054 const FrontendOptions &FrontendOpts) { 4055 PreprocessorOptions *PreprocessorOpts = &Opts; 4056 bool Success = true; 4057 4058 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4059 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4060 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4061 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4062 MERGER, EXTRACTOR, TABLE_INDEX) \ 4063 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4064 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4065 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4066 MERGER, TABLE_INDEX) 4067 #include "clang/Driver/Options.inc" 4068 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4069 4070 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4071 Args.hasArg(OPT_pch_through_hdrstop_use); 4072 4073 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4074 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4075 4076 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4077 auto Split = StringRef(A).split('='); 4078 Opts.MacroPrefixMap.insert( 4079 {std::string(Split.first), std::string(Split.second)}); 4080 } 4081 4082 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4083 StringRef Value(A->getValue()); 4084 size_t Comma = Value.find(','); 4085 unsigned Bytes = 0; 4086 unsigned EndOfLine = 0; 4087 4088 if (Comma == StringRef::npos || 4089 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4090 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4091 Diags.Report(diag::err_drv_preamble_format); 4092 else { 4093 Opts.PrecompiledPreambleBytes.first = Bytes; 4094 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4095 } 4096 } 4097 4098 // Add the __CET__ macro if a CFProtection option is set. 4099 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4100 StringRef Name = A->getValue(); 4101 if (Name == "branch") 4102 Opts.addMacroDef("__CET__=1"); 4103 else if (Name == "return") 4104 Opts.addMacroDef("__CET__=2"); 4105 else if (Name == "full") 4106 Opts.addMacroDef("__CET__=3"); 4107 } 4108 4109 // Add macros from the command line. 4110 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4111 if (A->getOption().matches(OPT_D)) 4112 Opts.addMacroDef(A->getValue()); 4113 else 4114 Opts.addMacroUndef(A->getValue()); 4115 } 4116 4117 // Add the ordered list of -includes. 4118 for (const auto *A : Args.filtered(OPT_include)) 4119 Opts.Includes.emplace_back(A->getValue()); 4120 4121 for (const auto *A : Args.filtered(OPT_chain_include)) 4122 Opts.ChainedIncludes.emplace_back(A->getValue()); 4123 4124 for (const auto *A : Args.filtered(OPT_remap_file)) { 4125 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4126 4127 if (Split.second.empty()) { 4128 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4129 continue; 4130 } 4131 4132 Opts.addRemappedFile(Split.first, Split.second); 4133 } 4134 4135 // Always avoid lexing editor placeholders when we're just running the 4136 // preprocessor as we never want to emit the 4137 // "editor placeholder in source file" error in PP only mode. 4138 if (isStrictlyPreprocessorAction(Action)) 4139 Opts.LexEditorPlaceholders = false; 4140 4141 return Success; 4142 } 4143 4144 static void GeneratePreprocessorOutputArgs( 4145 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4146 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4147 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4148 4149 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4150 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4151 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4152 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4153 MERGER, EXTRACTOR, TABLE_INDEX) \ 4154 GENERATE_OPTION_WITH_MARSHALLING( \ 4155 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4156 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4157 #include "clang/Driver/Options.inc" 4158 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4159 4160 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4161 if (Generate_dM) 4162 GenerateArg(Args, OPT_dM, SA); 4163 if (!Generate_dM && Opts.ShowMacros) 4164 GenerateArg(Args, OPT_dD, SA); 4165 } 4166 4167 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4168 ArgList &Args, DiagnosticsEngine &Diags, 4169 frontend::ActionKind Action) { 4170 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4171 unsigned NumErrorsBefore = Diags.getNumErrors(); 4172 bool Success = true; 4173 4174 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4175 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4176 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4177 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4178 MERGER, EXTRACTOR, TABLE_INDEX) \ 4179 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4180 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4181 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4182 MERGER, TABLE_INDEX) 4183 #include "clang/Driver/Options.inc" 4184 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4185 4186 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4187 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4188 4189 return Success && Diags.getNumErrors() == NumErrorsBefore; 4190 } 4191 4192 static void GenerateTargetArgs(const TargetOptions &Opts, 4193 SmallVectorImpl<const char *> &Args, 4194 CompilerInvocation::StringAllocator SA) { 4195 const TargetOptions *TargetOpts = &Opts; 4196 #define TARGET_OPTION_WITH_MARSHALLING( \ 4197 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4198 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4199 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4200 MERGER, EXTRACTOR, TABLE_INDEX) \ 4201 GENERATE_OPTION_WITH_MARSHALLING( \ 4202 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4203 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4204 #include "clang/Driver/Options.inc" 4205 #undef TARGET_OPTION_WITH_MARSHALLING 4206 4207 if (!Opts.SDKVersion.empty()) 4208 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4209 SA); 4210 } 4211 4212 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4213 DiagnosticsEngine &Diags) { 4214 TargetOptions *TargetOpts = &Opts; 4215 unsigned NumErrorsBefore = Diags.getNumErrors(); 4216 bool Success = true; 4217 4218 #define TARGET_OPTION_WITH_MARSHALLING( \ 4219 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4220 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4221 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4222 MERGER, EXTRACTOR, TABLE_INDEX) \ 4223 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4224 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4225 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4226 MERGER, TABLE_INDEX) 4227 #include "clang/Driver/Options.inc" 4228 #undef TARGET_OPTION_WITH_MARSHALLING 4229 4230 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4231 llvm::VersionTuple Version; 4232 if (Version.tryParse(A->getValue())) 4233 Diags.Report(diag::err_drv_invalid_value) 4234 << A->getAsString(Args) << A->getValue(); 4235 else 4236 Opts.SDKVersion = Version; 4237 } 4238 4239 return Success && Diags.getNumErrors() == NumErrorsBefore; 4240 } 4241 4242 bool CompilerInvocation::CreateFromArgsImpl( 4243 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4244 DiagnosticsEngine &Diags, const char *Argv0) { 4245 bool Success = true; 4246 4247 // Parse the arguments. 4248 const OptTable &Opts = getDriverOptTable(); 4249 const unsigned IncludedFlagsBitmask = options::CC1Option; 4250 unsigned MissingArgIndex, MissingArgCount; 4251 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4252 MissingArgCount, IncludedFlagsBitmask); 4253 LangOptions &LangOpts = *Res.getLangOpts(); 4254 4255 // Check for missing argument error. 4256 if (MissingArgCount) { 4257 Diags.Report(diag::err_drv_missing_argument) 4258 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4259 Success = false; 4260 } 4261 4262 // Issue errors on unknown arguments. 4263 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4264 auto ArgString = A->getAsString(Args); 4265 std::string Nearest; 4266 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4267 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4268 else 4269 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4270 << ArgString << Nearest; 4271 Success = false; 4272 } 4273 4274 Success &= ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4275 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4276 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4277 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4278 /*DefaultDiagColor=*/false); 4279 Success &= ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 4280 LangOpts.IsHeaderFile); 4281 // FIXME: We shouldn't have to pass the DashX option around here 4282 InputKind DashX = Res.getFrontendOpts().DashX; 4283 Success &= ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4284 llvm::Triple T(Res.getTargetOpts().Triple); 4285 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4286 Res.getFileSystemOpts().WorkingDir); 4287 if (DashX.getFormat() == InputKind::Precompiled || 4288 DashX.getLanguage() == Language::LLVM_IR) { 4289 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 4290 // PassManager in BackendUtil.cpp. They need to be initializd no matter 4291 // what the input type is. 4292 if (Args.hasArg(OPT_fobjc_arc)) 4293 LangOpts.ObjCAutoRefCount = 1; 4294 // PIClevel and PIELevel are needed during code generation and this should be 4295 // set regardless of the input type. 4296 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 4297 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 4298 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4299 Diags, LangOpts.Sanitize); 4300 } else { 4301 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 4302 // FIXME: Should we really be calling this for an Language::Asm input? 4303 Success &= ParseLangArgs(LangOpts, Args, DashX, T, 4304 Res.getPreprocessorOpts().Includes, Diags); 4305 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4306 LangOpts.ObjCExceptions = 1; 4307 } 4308 4309 if (LangOpts.CUDA) { 4310 // During CUDA device-side compilation, the aux triple is the 4311 // triple used for host compilation. 4312 if (LangOpts.CUDAIsDevice) 4313 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4314 } 4315 4316 // Set the triple of the host for OpenMP device compile. 4317 if (LangOpts.OpenMPIsDevice) 4318 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4319 4320 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4321 Res.getFrontendOpts().OutputFile, LangOpts); 4322 4323 // FIXME: Override value name discarding when asan or msan is used because the 4324 // backend passes depend on the name of the alloca in order to print out 4325 // names. 4326 Res.getCodeGenOpts().DiscardValueNames &= 4327 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4328 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4329 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4330 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4331 4332 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4333 Res.getFrontendOpts().ProgramAction, 4334 Res.getFrontendOpts()); 4335 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4336 Res.getFrontendOpts().ProgramAction); 4337 4338 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4339 Res.getFrontendOpts().ProgramAction, 4340 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4341 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4342 Res.getDependencyOutputOpts().Targets.empty()) { 4343 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4344 Success = false; 4345 } 4346 4347 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4348 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4349 !Res.getLangOpts()->Sanitize.empty()) { 4350 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4351 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4352 } 4353 4354 // Store the command-line for using in the CodeView backend. 4355 Res.getCodeGenOpts().Argv0 = Argv0; 4356 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 4357 4358 Success &= FixupInvocation(Res, Diags, Args, DashX); 4359 4360 return Success; 4361 } 4362 4363 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4364 ArrayRef<const char *> CommandLineArgs, 4365 DiagnosticsEngine &Diags, 4366 const char *Argv0) { 4367 CompilerInvocation DummyInvocation; 4368 4369 return RoundTrip( 4370 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4371 DiagnosticsEngine &Diags, const char *Argv0) { 4372 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4373 }, 4374 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4375 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4376 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4377 } 4378 4379 std::string CompilerInvocation::getModuleHash() const { 4380 // Note: For QoI reasons, the things we use as a hash here should all be 4381 // dumped via the -module-info flag. 4382 using llvm::hash_code; 4383 using llvm::hash_value; 4384 using llvm::hash_combine; 4385 using llvm::hash_combine_range; 4386 4387 // Start the signature with the compiler version. 4388 // FIXME: We'd rather use something more cryptographically sound than 4389 // CityHash, but this will do for now. 4390 hash_code code = hash_value(getClangFullRepositoryVersion()); 4391 4392 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4393 // and getClangFullRepositoryVersion() doesn't include git revision. 4394 code = hash_combine(code, serialization::VERSION_MAJOR, 4395 serialization::VERSION_MINOR); 4396 4397 // Extend the signature with the language options 4398 #define LANGOPT(Name, Bits, Default, Description) \ 4399 code = hash_combine(code, LangOpts->Name); 4400 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4401 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 4402 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4403 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4404 #include "clang/Basic/LangOptions.def" 4405 4406 for (StringRef Feature : LangOpts->ModuleFeatures) 4407 code = hash_combine(code, Feature); 4408 4409 code = hash_combine(code, LangOpts->ObjCRuntime); 4410 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 4411 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 4412 4413 // Extend the signature with the target options. 4414 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 4415 TargetOpts->TuneCPU, TargetOpts->ABI); 4416 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 4417 code = hash_combine(code, FeatureAsWritten); 4418 4419 // Extend the signature with preprocessor options. 4420 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4421 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4422 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 4423 4424 for (const auto &I : getPreprocessorOpts().Macros) { 4425 // If we're supposed to ignore this macro for the purposes of modules, 4426 // don't put it into the hash. 4427 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4428 // Check whether we're ignoring this macro. 4429 StringRef MacroDef = I.first; 4430 if (hsOpts.ModulesIgnoreMacros.count( 4431 llvm::CachedHashString(MacroDef.split('=').first))) 4432 continue; 4433 } 4434 4435 code = hash_combine(code, I.first, I.second); 4436 } 4437 4438 // Extend the signature with the sysroot and other header search options. 4439 code = hash_combine(code, hsOpts.Sysroot, 4440 hsOpts.ModuleFormat, 4441 hsOpts.UseDebugInfo, 4442 hsOpts.UseBuiltinIncludes, 4443 hsOpts.UseStandardSystemIncludes, 4444 hsOpts.UseStandardCXXIncludes, 4445 hsOpts.UseLibcxx, 4446 hsOpts.ModulesValidateDiagnosticOptions); 4447 code = hash_combine(code, hsOpts.ResourceDir); 4448 4449 if (hsOpts.ModulesStrictContextHash) { 4450 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 4451 hsOpts.SystemHeaderPrefixes.end()); 4452 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 4453 hsOpts.UserEntries.end()); 4454 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 4455 hsOpts.UserEntries.size(), UEC); 4456 4457 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4458 #define DIAGOPT(Name, Bits, Default) \ 4459 code = hash_combine(code, diagOpts.Name); 4460 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4461 code = hash_combine(code, diagOpts.get##Name()); 4462 #include "clang/Basic/DiagnosticOptions.def" 4463 #undef DIAGOPT 4464 #undef ENUM_DIAGOPT 4465 } 4466 4467 // Extend the signature with the user build path. 4468 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 4469 4470 // Extend the signature with the module file extensions. 4471 const FrontendOptions &frontendOpts = getFrontendOpts(); 4472 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 4473 code = ext->hashExtension(code); 4474 } 4475 4476 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4477 // affects the debug info in the PCM. 4478 if (getCodeGenOpts().DebugTypeExtRefs) 4479 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 4480 code = hash_combine(code, KeyValue.first, KeyValue.second); 4481 4482 // Extend the signature with the enabled sanitizers, if at least one is 4483 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4484 SanitizerSet SanHash = LangOpts->Sanitize; 4485 SanHash.clear(getPPTransparentSanitizers()); 4486 if (!SanHash.empty()) 4487 code = hash_combine(code, SanHash.Mask); 4488 4489 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 4490 } 4491 4492 void CompilerInvocation::generateCC1CommandLine( 4493 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4494 llvm::Triple T(TargetOpts->Triple); 4495 4496 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4497 GenerateMigratorArgs(MigratorOpts, Args, SA); 4498 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4499 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4500 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4501 GenerateTargetArgs(*TargetOpts, Args, SA); 4502 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4503 4504 InputKind DashX = FrontendOpts.DashX; 4505 if (DashX.getFormat() == InputKind::Precompiled || 4506 DashX.getLanguage() == Language::LLVM_IR) { 4507 if (LangOpts->ObjCAutoRefCount) 4508 GenerateArg(Args, OPT_fobjc_arc, SA); 4509 if (LangOpts->PICLevel != 0) 4510 GenerateArg(Args, OPT_pic_level, Twine(LangOpts->PICLevel), SA); 4511 if (LangOpts->PIE) 4512 GenerateArg(Args, OPT_pic_is_pie, SA); 4513 for (StringRef Sanitizer : serializeSanitizerKinds(LangOpts->Sanitize)) 4514 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 4515 } else { 4516 // FIXME: Move this whole condition into GenerateLangArgs. (And do the same 4517 // for ParseLangArgs). 4518 GenerateLangArgs(*LangOpts, Args, SA, T); 4519 } 4520 4521 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4522 &*LangOpts); 4523 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4524 CodeGenOpts); 4525 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4526 FrontendOpts.ProgramAction); 4527 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4528 } 4529 4530 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4531 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4532 DiagnosticsEngine &Diags) { 4533 return createVFSFromCompilerInvocation(CI, Diags, 4534 llvm::vfs::getRealFileSystem()); 4535 } 4536 4537 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4538 clang::createVFSFromCompilerInvocation( 4539 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4540 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4541 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4542 return BaseFS; 4543 4544 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4545 // earlier vfs files are on the bottom 4546 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4547 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4548 Result->getBufferForFile(File); 4549 if (!Buffer) { 4550 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4551 continue; 4552 } 4553 4554 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4555 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4556 /*DiagContext*/ nullptr, Result); 4557 if (!FS) { 4558 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4559 continue; 4560 } 4561 4562 Result = FS; 4563 } 4564 return Result; 4565 } 4566