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 std::string Buffer; 1471 llvm::raw_string_ostream OS(Buffer); 1472 Opts.FPDenormalMode.print(OS); 1473 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, OS.str(), SA); 1474 } 1475 1476 if (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE()) { 1477 std::string Buffer; 1478 llvm::raw_string_ostream OS(Buffer); 1479 Opts.FP32DenormalMode.print(OS); 1480 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, OS.str(), SA); 1481 } 1482 1483 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1484 OptSpecifier Opt = 1485 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1486 GenerateArg(Args, Opt, SA); 1487 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1488 OptSpecifier Opt = 1489 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1490 GenerateArg(Args, Opt, SA); 1491 } 1492 1493 if (Opts.IgnoreXCOFFVisibility) 1494 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 1495 1496 if (Opts.EnableAIXExtendedAltivecABI) 1497 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1498 1499 if (!Opts.OptRecordPasses.empty()) 1500 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1501 1502 if (!Opts.OptRecordFormat.empty()) 1503 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1504 1505 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1506 Opts.OptimizationRemark); 1507 1508 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1509 Opts.OptimizationRemarkMissed); 1510 1511 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1512 Opts.OptimizationRemarkAnalysis); 1513 1514 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1515 Opts.DiagnosticsHotnessThreshold 1516 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1517 : "auto", 1518 SA); 1519 1520 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1521 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1522 1523 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1524 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1525 1526 if (!Opts.EmitVersionIdentMetadata) 1527 GenerateArg(Args, OPT_Qn, SA); 1528 1529 switch (Opts.FiniteLoops) { 1530 case CodeGenOptions::FiniteLoopsKind::Language: 1531 break; 1532 case CodeGenOptions::FiniteLoopsKind::Always: 1533 GenerateArg(Args, OPT_ffinite_loops, SA); 1534 break; 1535 case CodeGenOptions::FiniteLoopsKind::Never: 1536 GenerateArg(Args, OPT_fno_finite_loops, SA); 1537 break; 1538 } 1539 } 1540 1541 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1542 InputKind IK, 1543 DiagnosticsEngine &Diags, 1544 const llvm::Triple &T, 1545 const std::string &OutputFile, 1546 const LangOptions &LangOptsRef) { 1547 unsigned NumErrorsBefore = Diags.getNumErrors(); 1548 1549 bool Success = true; 1550 1551 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1552 // TODO: This could be done in Driver 1553 unsigned MaxOptLevel = 3; 1554 if (OptimizationLevel > MaxOptLevel) { 1555 // If the optimization level is not supported, fall back on the default 1556 // optimization 1557 Diags.Report(diag::warn_drv_optimization_value) 1558 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1559 OptimizationLevel = MaxOptLevel; 1560 } 1561 Opts.OptimizationLevel = OptimizationLevel; 1562 1563 // The key paths of codegen options defined in Options.td start with 1564 // "CodeGenOpts.". Let's provide the expected variable name and type. 1565 CodeGenOptions &CodeGenOpts = Opts; 1566 // Some codegen options depend on language options. Let's provide the expected 1567 // variable name and type. 1568 const LangOptions *LangOpts = &LangOptsRef; 1569 1570 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1571 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1572 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1573 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1574 MERGER, EXTRACTOR, TABLE_INDEX) \ 1575 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 1576 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1577 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 1578 MERGER, TABLE_INDEX) 1579 #include "clang/Driver/Options.inc" 1580 #undef CODEGEN_OPTION_WITH_MARSHALLING 1581 1582 // At O0 we want to fully disable inlining outside of cases marked with 1583 // 'alwaysinline' that are required for correctness. 1584 Opts.setInlining((Opts.OptimizationLevel == 0) 1585 ? CodeGenOptions::OnlyAlwaysInlining 1586 : CodeGenOptions::NormalInlining); 1587 // Explicit inlining flags can disable some or all inlining even at 1588 // optimization levels above zero. 1589 if (Arg *InlineArg = Args.getLastArg( 1590 options::OPT_finline_functions, options::OPT_finline_hint_functions, 1591 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 1592 if (Opts.OptimizationLevel > 0) { 1593 const Option &InlineOpt = InlineArg->getOption(); 1594 if (InlineOpt.matches(options::OPT_finline_functions)) 1595 Opts.setInlining(CodeGenOptions::NormalInlining); 1596 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 1597 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1598 else 1599 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1600 } 1601 } 1602 1603 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1604 // -fdirect-access-external-data. 1605 Opts.DirectAccessExternalData = 1606 Args.hasArg(OPT_fdirect_access_external_data) || 1607 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1608 LangOpts->PICLevel == 0); 1609 1610 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1611 unsigned Val = 1612 llvm::StringSwitch<unsigned>(A->getValue()) 1613 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1614 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1615 .Case("constructor", codegenoptions::DebugInfoConstructor) 1616 .Case("limited", codegenoptions::LimitedDebugInfo) 1617 .Case("standalone", codegenoptions::FullDebugInfo) 1618 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1619 .Default(~0U); 1620 if (Val == ~0U) 1621 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1622 << A->getValue(); 1623 else 1624 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1625 } 1626 1627 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1628 // constructor homing. 1629 if (Args.getLastArg(OPT_fuse_ctor_homing)) 1630 if (Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1631 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1632 1633 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1634 auto Split = StringRef(Arg).split('='); 1635 Opts.DebugPrefixMap.insert( 1636 {std::string(Split.first), std::string(Split.second)}); 1637 } 1638 1639 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1640 auto Split = StringRef(Arg).split('='); 1641 Opts.CoveragePrefixMap.insert( 1642 {std::string(Split.first), std::string(Split.second)}); 1643 } 1644 1645 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1646 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1647 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1648 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1649 1650 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1651 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1652 Opts.EmitCallSiteInfo = true; 1653 1654 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1655 Args.hasArg(OPT_new_struct_path_tbaa); 1656 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1657 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1658 if (Opts.SimplifyLibCalls) 1659 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1660 Opts.UnrollLoops = 1661 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1662 (Opts.OptimizationLevel > 1)); 1663 Opts.BinutilsVersion = 1664 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1665 1666 Opts.DebugNameTable = static_cast<unsigned>( 1667 Args.hasArg(OPT_ggnu_pubnames) 1668 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1669 : Args.hasArg(OPT_gpubnames) 1670 ? llvm::DICompileUnit::DebugNameTableKind::Default 1671 : llvm::DICompileUnit::DebugNameTableKind::None); 1672 1673 if (!Opts.ProfileInstrumentUsePath.empty()) 1674 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1675 1676 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1677 Opts.TimePasses = true; 1678 1679 // -ftime-report= is only for new pass manager. 1680 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1681 if (Opts.LegacyPassManager) 1682 Diags.Report(diag::err_drv_argument_only_allowed_with) 1683 << A->getAsString(Args) << "-fno-legacy-pass-manager"; 1684 1685 StringRef Val = A->getValue(); 1686 if (Val == "per-pass") 1687 Opts.TimePassesPerRun = false; 1688 else if (Val == "per-pass-run") 1689 Opts.TimePassesPerRun = true; 1690 else 1691 Diags.Report(diag::err_drv_invalid_value) 1692 << A->getAsString(Args) << A->getValue(); 1693 } 1694 } 1695 1696 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 1697 Opts.PrepareForThinLTO = false; 1698 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1699 StringRef S = A->getValue(); 1700 if (S == "thin") 1701 Opts.PrepareForThinLTO = true; 1702 else if (S != "full") 1703 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1704 } 1705 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1706 if (IK.getLanguage() != Language::LLVM_IR) 1707 Diags.Report(diag::err_drv_argument_only_allowed_with) 1708 << A->getAsString(Args) << "-x ir"; 1709 Opts.ThinLTOIndexFile = 1710 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1711 } 1712 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1713 Opts.SaveTempsFilePrefix = 1714 llvm::StringSwitch<std::string>(A->getValue()) 1715 .Case("obj", OutputFile) 1716 .Default(llvm::sys::path::filename(OutputFile).str()); 1717 1718 // The memory profile runtime appends the pid to make this name more unique. 1719 const char *MemProfileBasename = "memprof.profraw"; 1720 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1721 SmallString<128> Path( 1722 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1723 llvm::sys::path::append(Path, MemProfileBasename); 1724 Opts.MemoryProfileOutput = std::string(Path); 1725 } else if (Args.hasArg(OPT_fmemory_profile)) 1726 Opts.MemoryProfileOutput = MemProfileBasename; 1727 1728 memcpy(Opts.CoverageVersion, "408*", 4); 1729 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1730 if (Args.hasArg(OPT_coverage_version_EQ)) { 1731 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1732 if (CoverageVersion.size() != 4) { 1733 Diags.Report(diag::err_drv_invalid_value) 1734 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1735 << CoverageVersion; 1736 } else { 1737 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1738 } 1739 } 1740 } 1741 // FIXME: For backend options that are not yet recorded as function 1742 // attributes in the IR, keep track of them so we can embed them in a 1743 // separate data section and use them when building the bitcode. 1744 for (const auto &A : Args) { 1745 // Do not encode output and input. 1746 if (A->getOption().getID() == options::OPT_o || 1747 A->getOption().getID() == options::OPT_INPUT || 1748 A->getOption().getID() == options::OPT_x || 1749 A->getOption().getID() == options::OPT_fembed_bitcode || 1750 A->getOption().matches(options::OPT_W_Group)) 1751 continue; 1752 ArgStringList ASL; 1753 A->render(Args, ASL); 1754 for (const auto &arg : ASL) { 1755 StringRef ArgStr(arg); 1756 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1757 // using \00 to separate each commandline options. 1758 Opts.CmdArgs.push_back('\0'); 1759 } 1760 } 1761 1762 auto XRayInstrBundles = 1763 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1764 if (XRayInstrBundles.empty()) 1765 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1766 else 1767 for (const auto &A : XRayInstrBundles) 1768 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1769 Diags, Opts.XRayInstrumentationBundle); 1770 1771 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1772 StringRef Name = A->getValue(); 1773 if (Name == "full") { 1774 Opts.CFProtectionReturn = 1; 1775 Opts.CFProtectionBranch = 1; 1776 } else if (Name == "return") 1777 Opts.CFProtectionReturn = 1; 1778 else if (Name == "branch") 1779 Opts.CFProtectionBranch = 1; 1780 else if (Name != "none") { 1781 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1782 Success = false; 1783 } 1784 } 1785 1786 for (auto *A : 1787 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1788 CodeGenOptions::BitcodeFileToLink F; 1789 F.Filename = A->getValue(); 1790 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1791 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1792 // When linking CUDA bitcode, propagate function attributes so that 1793 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1794 F.PropagateAttrs = true; 1795 F.Internalize = true; 1796 } 1797 Opts.LinkBitcodeFiles.push_back(F); 1798 } 1799 1800 if (Args.getLastArg(OPT_femulated_tls) || 1801 Args.getLastArg(OPT_fno_emulated_tls)) { 1802 Opts.ExplicitEmulatedTLS = true; 1803 } 1804 1805 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1806 StringRef Val = A->getValue(); 1807 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1808 if (!Opts.FPDenormalMode.isValid()) 1809 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1810 } 1811 1812 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1813 StringRef Val = A->getValue(); 1814 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1815 if (!Opts.FP32DenormalMode.isValid()) 1816 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1817 } 1818 1819 // X86_32 has -fppc-struct-return and -freg-struct-return. 1820 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1821 if (Arg *A = 1822 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1823 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1824 // TODO: We might want to consider enabling these options on AIX in the 1825 // future. 1826 if (T.isOSAIX()) 1827 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1828 << A->getSpelling() << T.str(); 1829 1830 const Option &O = A->getOption(); 1831 if (O.matches(OPT_fpcc_struct_return) || 1832 O.matches(OPT_maix_struct_return)) { 1833 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1834 } else { 1835 assert(O.matches(OPT_freg_struct_return) || 1836 O.matches(OPT_msvr4_struct_return)); 1837 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1838 } 1839 } 1840 1841 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 1842 !Args.hasArg(OPT_fvisibility))) 1843 Opts.IgnoreXCOFFVisibility = 1; 1844 1845 if (Arg *A = 1846 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1847 if (!T.isOSAIX()) 1848 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1849 << A->getSpelling() << T.str(); 1850 1851 const Option &O = A->getOption(); 1852 if (O.matches(OPT_mabi_EQ_vec_default)) 1853 Diags.Report(diag::err_aix_default_altivec_abi) 1854 << A->getSpelling() << T.str(); 1855 else { 1856 assert(O.matches(OPT_mabi_EQ_vec_extabi)); 1857 Opts.EnableAIXExtendedAltivecABI = 1; 1858 } 1859 } 1860 1861 bool NeedLocTracking = false; 1862 1863 if (!Opts.OptRecordFile.empty()) 1864 NeedLocTracking = true; 1865 1866 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1867 Opts.OptRecordPasses = A->getValue(); 1868 NeedLocTracking = true; 1869 } 1870 1871 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1872 Opts.OptRecordFormat = A->getValue(); 1873 NeedLocTracking = true; 1874 } 1875 1876 Opts.OptimizationRemark = 1877 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1878 1879 Opts.OptimizationRemarkMissed = 1880 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1881 1882 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1883 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1884 1885 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1886 Opts.OptimizationRemarkMissed.hasValidPattern() || 1887 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1888 1889 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1890 bool UsingProfile = UsingSampleProfile || 1891 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1892 1893 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1894 // An IR file will contain PGO as metadata 1895 IK.getLanguage() != Language::LLVM_IR) 1896 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1897 << "-fdiagnostics-show-hotness"; 1898 1899 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1900 if (auto *arg = 1901 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1902 auto ResultOrErr = 1903 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1904 1905 if (!ResultOrErr) { 1906 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1907 << "-fdiagnostics-hotness-threshold="; 1908 } else { 1909 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1910 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1911 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1912 !UsingProfile) 1913 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1914 << "-fdiagnostics-hotness-threshold="; 1915 } 1916 } 1917 1918 // If the user requested to use a sample profile for PGO, then the 1919 // backend will need to track source location information so the profile 1920 // can be incorporated into the IR. 1921 if (UsingSampleProfile) 1922 NeedLocTracking = true; 1923 1924 // If the user requested a flag that requires source locations available in 1925 // the backend, make sure that the backend tracks source location information. 1926 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1927 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1928 1929 // Parse -fsanitize-recover= arguments. 1930 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1931 parseSanitizerKinds("-fsanitize-recover=", 1932 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1933 Opts.SanitizeRecover); 1934 parseSanitizerKinds("-fsanitize-trap=", 1935 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1936 Opts.SanitizeTrap); 1937 1938 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1939 1940 if (Args.hasArg(options::OPT_ffinite_loops)) 1941 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 1942 else if (Args.hasArg(options::OPT_fno_finite_loops)) 1943 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 1944 1945 return Success && Diags.getNumErrors() == NumErrorsBefore; 1946 } 1947 1948 static void 1949 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 1950 SmallVectorImpl<const char *> &Args, 1951 CompilerInvocation::StringAllocator SA) { 1952 const DependencyOutputOptions &DependencyOutputOpts = Opts; 1953 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1954 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1955 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1956 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1957 MERGER, EXTRACTOR, TABLE_INDEX) \ 1958 GENERATE_OPTION_WITH_MARSHALLING( \ 1959 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1960 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1961 #include "clang/Driver/Options.inc" 1962 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 1963 1964 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 1965 GenerateArg(Args, OPT_show_includes, SA); 1966 1967 for (const auto &Dep : Opts.ExtraDeps) { 1968 switch (Dep.second) { 1969 case EDK_SanitizeBlacklist: 1970 // Sanitizer blacklist arguments are generated from LanguageOptions. 1971 continue; 1972 case EDK_ModuleFile: 1973 // Module file arguments are generated from FrontendOptions and 1974 // HeaderSearchOptions. 1975 continue; 1976 case EDK_ProfileList: 1977 // Profile list arguments are generated from LanguageOptions via the 1978 // marshalling infrastructure. 1979 continue; 1980 case EDK_DepFileEntry: 1981 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 1982 break; 1983 } 1984 } 1985 } 1986 1987 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1988 ArgList &Args, DiagnosticsEngine &Diags, 1989 frontend::ActionKind Action, 1990 bool ShowLineMarkers) { 1991 unsigned NumErrorsBefore = Diags.getNumErrors(); 1992 bool Success = true; 1993 1994 DependencyOutputOptions &DependencyOutputOpts = Opts; 1995 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1996 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1997 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1998 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1999 MERGER, EXTRACTOR, TABLE_INDEX) \ 2000 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2001 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2002 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2003 MERGER, TABLE_INDEX) 2004 #include "clang/Driver/Options.inc" 2005 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2006 2007 if (Args.hasArg(OPT_show_includes)) { 2008 // Writing both /showIncludes and preprocessor output to stdout 2009 // would produce interleaved output, so use stderr for /showIncludes. 2010 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2011 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2012 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2013 else 2014 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2015 } else { 2016 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2017 } 2018 2019 // Add sanitizer blacklists as extra dependencies. 2020 // They won't be discovered by the regular preprocessor, so 2021 // we let make / ninja to know about this implicit dependency. 2022 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 2023 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 2024 StringRef Val = A->getValue(); 2025 if (Val.find('=') == StringRef::npos) 2026 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeBlacklist); 2027 } 2028 if (Opts.IncludeSystemHeaders) { 2029 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 2030 StringRef Val = A->getValue(); 2031 if (Val.find('=') == StringRef::npos) 2032 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeBlacklist); 2033 } 2034 } 2035 } 2036 2037 // -fprofile-list= dependencies. 2038 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2039 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2040 2041 // Propagate the extra dependencies. 2042 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2043 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2044 2045 // Only the -fmodule-file=<file> form. 2046 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2047 StringRef Val = A->getValue(); 2048 if (Val.find('=') == StringRef::npos) 2049 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2050 } 2051 2052 return Success && Diags.getNumErrors() == NumErrorsBefore; 2053 } 2054 2055 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2056 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2057 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2058 // Support both clang's -f[no-]color-diagnostics and gcc's 2059 // -f[no-]diagnostics-colors[=never|always|auto]. 2060 enum { 2061 Colors_On, 2062 Colors_Off, 2063 Colors_Auto 2064 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2065 for (auto *A : Args) { 2066 const Option &O = A->getOption(); 2067 if (O.matches(options::OPT_fcolor_diagnostics) || 2068 O.matches(options::OPT_fdiagnostics_color)) { 2069 ShowColors = Colors_On; 2070 } else if (O.matches(options::OPT_fno_color_diagnostics) || 2071 O.matches(options::OPT_fno_diagnostics_color)) { 2072 ShowColors = Colors_Off; 2073 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2074 StringRef Value(A->getValue()); 2075 if (Value == "always") 2076 ShowColors = Colors_On; 2077 else if (Value == "never") 2078 ShowColors = Colors_Off; 2079 else if (Value == "auto") 2080 ShowColors = Colors_Auto; 2081 } 2082 } 2083 return ShowColors == Colors_On || 2084 (ShowColors == Colors_Auto && 2085 llvm::sys::Process::StandardErrHasColors()); 2086 } 2087 2088 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2089 DiagnosticsEngine &Diags) { 2090 bool Success = true; 2091 for (const auto &Prefix : VerifyPrefixes) { 2092 // Every prefix must start with a letter and contain only alphanumeric 2093 // characters, hyphens, and underscores. 2094 auto BadChar = llvm::find_if(Prefix, [](char C) { 2095 return !isAlphanumeric(C) && C != '-' && C != '_'; 2096 }); 2097 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2098 Success = false; 2099 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2100 Diags.Report(diag::note_drv_verify_prefix_spelling); 2101 } 2102 } 2103 return Success; 2104 } 2105 2106 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2107 SmallVectorImpl<const char *> &Args, 2108 CompilerInvocation::StringAllocator SA) { 2109 const FileSystemOptions &FileSystemOpts = Opts; 2110 2111 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2112 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2113 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2114 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2115 MERGER, EXTRACTOR, TABLE_INDEX) \ 2116 GENERATE_OPTION_WITH_MARSHALLING( \ 2117 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2118 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2119 #include "clang/Driver/Options.inc" 2120 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2121 } 2122 2123 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2124 DiagnosticsEngine &Diags) { 2125 FileSystemOptions &FileSystemOpts = Opts; 2126 bool Success = true; 2127 2128 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2129 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2130 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2131 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2132 MERGER, EXTRACTOR, TABLE_INDEX) \ 2133 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2134 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2135 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2136 MERGER, TABLE_INDEX) 2137 #include "clang/Driver/Options.inc" 2138 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2139 2140 return Success; 2141 } 2142 2143 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2144 SmallVectorImpl<const char *> &Args, 2145 CompilerInvocation::StringAllocator SA) { 2146 const MigratorOptions &MigratorOpts = Opts; 2147 2148 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2149 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2150 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2151 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2152 MERGER, EXTRACTOR, TABLE_INDEX) \ 2153 GENERATE_OPTION_WITH_MARSHALLING( \ 2154 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2155 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2156 #include "clang/Driver/Options.inc" 2157 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2158 } 2159 2160 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2161 DiagnosticsEngine &Diags) { 2162 MigratorOptions &MigratorOpts = Opts; 2163 bool Success = true; 2164 2165 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2166 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2167 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2168 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2169 MERGER, EXTRACTOR, TABLE_INDEX) \ 2170 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2171 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2172 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2173 MERGER, TABLE_INDEX) 2174 #include "clang/Driver/Options.inc" 2175 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2176 2177 return Success; 2178 } 2179 2180 void CompilerInvocation::GenerateDiagnosticArgs( 2181 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2182 StringAllocator SA, bool DefaultDiagColor) { 2183 const DiagnosticOptions *DiagnosticOpts = &Opts; 2184 #define DIAG_OPTION_WITH_MARSHALLING( \ 2185 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2186 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2187 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2188 MERGER, EXTRACTOR, TABLE_INDEX) \ 2189 GENERATE_OPTION_WITH_MARSHALLING( \ 2190 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2191 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2192 #include "clang/Driver/Options.inc" 2193 #undef DIAG_OPTION_WITH_MARSHALLING 2194 2195 if (!Opts.DiagnosticSerializationFile.empty()) 2196 GenerateArg(Args, OPT_diagnostic_serialized_file, 2197 Opts.DiagnosticSerializationFile, SA); 2198 2199 if (Opts.ShowColors) 2200 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2201 2202 if (Opts.VerifyDiagnostics && 2203 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2204 GenerateArg(Args, OPT_verify, SA); 2205 2206 for (const auto &Prefix : Opts.VerifyPrefixes) 2207 if (Prefix != "expected") 2208 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2209 2210 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2211 if (VIU == DiagnosticLevelMask::None) { 2212 // This is the default, don't generate anything. 2213 } else if (VIU == DiagnosticLevelMask::All) { 2214 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2215 } else { 2216 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2217 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2218 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2219 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2220 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2221 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2222 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2223 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2224 } 2225 2226 for (const auto &Warning : Opts.Warnings) { 2227 // This option is automatically generated from UndefPrefixes. 2228 if (Warning == "undef-prefix") 2229 continue; 2230 Args.push_back(SA(StringRef("-W") + Warning)); 2231 } 2232 2233 for (const auto &Remark : Opts.Remarks) { 2234 // These arguments are generated from OptimizationRemark fields of 2235 // CodeGenOptions. 2236 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2237 "pass-analysis", "no-pass-analysis", 2238 "pass-missed", "no-pass-missed"}; 2239 if (llvm::is_contained(IgnoredRemarks, Remark)) 2240 continue; 2241 2242 Args.push_back(SA(StringRef("-R") + Remark)); 2243 } 2244 } 2245 2246 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2247 DiagnosticsEngine *Diags, 2248 bool DefaultDiagColor) { 2249 Optional<DiagnosticsEngine> IgnoringDiags; 2250 if (!Diags) { 2251 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2252 new IgnoringDiagConsumer()); 2253 Diags = &*IgnoringDiags; 2254 } 2255 2256 // The key paths of diagnostic options defined in Options.td start with 2257 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2258 DiagnosticOptions *DiagnosticOpts = &Opts; 2259 bool Success = true; 2260 2261 #define DIAG_OPTION_WITH_MARSHALLING( \ 2262 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2263 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2264 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2265 MERGER, EXTRACTOR, TABLE_INDEX) \ 2266 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, Success, ID, FLAGS, PARAM, \ 2267 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2268 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2269 MERGER, TABLE_INDEX) 2270 #include "clang/Driver/Options.inc" 2271 #undef DIAG_OPTION_WITH_MARSHALLING 2272 2273 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2274 2275 if (Arg *A = 2276 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2277 Opts.DiagnosticSerializationFile = A->getValue(); 2278 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2279 2280 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2281 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2282 if (Args.hasArg(OPT_verify)) 2283 Opts.VerifyPrefixes.push_back("expected"); 2284 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2285 // then sort it to prepare for fast lookup using std::binary_search. 2286 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) { 2287 Opts.VerifyDiagnostics = false; 2288 Success = false; 2289 } 2290 else 2291 llvm::sort(Opts.VerifyPrefixes); 2292 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2293 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 2294 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 2295 *Diags, DiagMask); 2296 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2297 DiagMask = DiagnosticLevelMask::All; 2298 Opts.setVerifyIgnoreUnexpected(DiagMask); 2299 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2300 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2301 Diags->Report(diag::warn_ignoring_ftabstop_value) 2302 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2303 } 2304 2305 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2306 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2307 2308 return Success; 2309 } 2310 2311 /// Parse the argument to the -ftest-module-file-extension 2312 /// command-line argument. 2313 /// 2314 /// \returns true on error, false on success. 2315 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2316 std::string &BlockName, 2317 unsigned &MajorVersion, 2318 unsigned &MinorVersion, 2319 bool &Hashed, 2320 std::string &UserInfo) { 2321 SmallVector<StringRef, 5> Args; 2322 Arg.split(Args, ':', 5); 2323 if (Args.size() < 5) 2324 return true; 2325 2326 BlockName = std::string(Args[0]); 2327 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2328 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2329 if (Args[3].getAsInteger(2, Hashed)) return true; 2330 if (Args.size() > 4) 2331 UserInfo = std::string(Args[4]); 2332 return false; 2333 } 2334 2335 /// Return a table that associates command line option specifiers with the 2336 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2337 /// intentionally missing, as this case is handled separately from other 2338 /// frontend options. 2339 static const auto &getFrontendActionTable() { 2340 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2341 {frontend::ASTDeclList, OPT_ast_list}, 2342 2343 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2344 {frontend::ASTDump, OPT_ast_dump_all}, 2345 {frontend::ASTDump, OPT_ast_dump_EQ}, 2346 {frontend::ASTDump, OPT_ast_dump}, 2347 {frontend::ASTDump, OPT_ast_dump_lookups}, 2348 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2349 2350 {frontend::ASTPrint, OPT_ast_print}, 2351 {frontend::ASTView, OPT_ast_view}, 2352 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2353 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2354 {frontend::DumpTokens, OPT_dump_tokens}, 2355 {frontend::EmitAssembly, OPT_S}, 2356 {frontend::EmitBC, OPT_emit_llvm_bc}, 2357 {frontend::EmitHTML, OPT_emit_html}, 2358 {frontend::EmitLLVM, OPT_emit_llvm}, 2359 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2360 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2361 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2362 {frontend::EmitObj, OPT_emit_obj}, 2363 2364 {frontend::FixIt, OPT_fixit_EQ}, 2365 {frontend::FixIt, OPT_fixit}, 2366 2367 {frontend::GenerateModule, OPT_emit_module}, 2368 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2369 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2370 {frontend::GeneratePCH, OPT_emit_pch}, 2371 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2372 {frontend::InitOnly, OPT_init_only}, 2373 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2374 {frontend::ModuleFileInfo, OPT_module_file_info}, 2375 {frontend::VerifyPCH, OPT_verify_pch}, 2376 {frontend::PrintPreamble, OPT_print_preamble}, 2377 {frontend::PrintPreprocessedInput, OPT_E}, 2378 {frontend::TemplightDump, OPT_templight_dump}, 2379 {frontend::RewriteMacros, OPT_rewrite_macros}, 2380 {frontend::RewriteObjC, OPT_rewrite_objc}, 2381 {frontend::RewriteTest, OPT_rewrite_test}, 2382 {frontend::RunAnalysis, OPT_analyze}, 2383 {frontend::MigrateSource, OPT_migrate}, 2384 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2385 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2386 OPT_print_dependency_directives_minimized_source}, 2387 }; 2388 2389 return Table; 2390 } 2391 2392 /// Maps command line option to frontend action. 2393 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2394 for (const auto &ActionOpt : getFrontendActionTable()) 2395 if (ActionOpt.second == Opt.getID()) 2396 return ActionOpt.first; 2397 2398 return None; 2399 } 2400 2401 /// Maps frontend action to command line option. 2402 static Optional<OptSpecifier> 2403 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2404 for (const auto &ActionOpt : getFrontendActionTable()) 2405 if (ActionOpt.first == ProgramAction) 2406 return OptSpecifier(ActionOpt.second); 2407 2408 return None; 2409 } 2410 2411 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2412 SmallVectorImpl<const char *> &Args, 2413 CompilerInvocation::StringAllocator SA, 2414 bool IsHeader) { 2415 const FrontendOptions &FrontendOpts = Opts; 2416 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2417 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2418 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2419 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2420 MERGER, EXTRACTOR, TABLE_INDEX) \ 2421 GENERATE_OPTION_WITH_MARSHALLING( \ 2422 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2423 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2424 #include "clang/Driver/Options.inc" 2425 #undef FRONTEND_OPTION_WITH_MARSHALLING 2426 2427 Optional<OptSpecifier> ProgramActionOpt = 2428 getProgramActionOpt(Opts.ProgramAction); 2429 2430 // Generating a simple flag covers most frontend actions. 2431 std::function<void()> GenerateProgramAction = [&]() { 2432 GenerateArg(Args, *ProgramActionOpt, SA); 2433 }; 2434 2435 if (!ProgramActionOpt) { 2436 // PluginAction is the only program action handled separately. 2437 assert(Opts.ProgramAction == frontend::PluginAction && 2438 "Frontend action without option."); 2439 GenerateProgramAction = [&]() { 2440 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2441 }; 2442 } 2443 2444 // FIXME: Simplify the complex 'AST dump' command line. 2445 if (Opts.ProgramAction == frontend::ASTDump) { 2446 GenerateProgramAction = [&]() { 2447 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2448 // marshalling infrastructure. 2449 2450 if (Opts.ASTDumpFormat != ADOF_Default) { 2451 StringRef Format; 2452 switch (Opts.ASTDumpFormat) { 2453 case ADOF_Default: 2454 llvm_unreachable("Default AST dump format."); 2455 case ADOF_JSON: 2456 Format = "json"; 2457 break; 2458 } 2459 2460 if (Opts.ASTDumpAll) 2461 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2462 if (Opts.ASTDumpDecls) 2463 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2464 } else { 2465 if (Opts.ASTDumpAll) 2466 GenerateArg(Args, OPT_ast_dump_all, SA); 2467 if (Opts.ASTDumpDecls) 2468 GenerateArg(Args, OPT_ast_dump, SA); 2469 } 2470 }; 2471 } 2472 2473 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2474 GenerateProgramAction = [&]() { 2475 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2476 }; 2477 } 2478 2479 GenerateProgramAction(); 2480 2481 for (const auto &PluginArgs : Opts.PluginArgs) 2482 for (const auto &PluginArg : PluginArgs.second) 2483 GenerateArg(Args, OPT_plugin_arg, PluginArgs.first + PluginArg, SA); 2484 2485 for (const auto &Ext : Opts.ModuleFileExtensions) { 2486 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) { 2487 std::string Buffer; 2488 llvm::raw_string_ostream OS(Buffer); 2489 OS << *TestExt; 2490 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, OS.str(), SA); 2491 } 2492 } 2493 2494 if (!Opts.CodeCompletionAt.FileName.empty()) 2495 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2496 SA); 2497 2498 for (const auto &Plugin : Opts.Plugins) 2499 GenerateArg(Args, OPT_load, Plugin, SA); 2500 2501 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2502 2503 for (const auto &ModuleFile : Opts.ModuleFiles) 2504 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2505 2506 if (Opts.AuxTargetCPU.hasValue()) 2507 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2508 2509 if (Opts.AuxTargetFeatures.hasValue()) 2510 for (const auto &Feature : *Opts.AuxTargetFeatures) 2511 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2512 2513 { 2514 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2515 StringRef ModuleMap = 2516 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2517 StringRef Header = IsHeader ? "-header" : ""; 2518 2519 StringRef Lang; 2520 switch (Opts.DashX.getLanguage()) { 2521 case Language::C: 2522 Lang = "c"; 2523 break; 2524 case Language::OpenCL: 2525 Lang = "cl"; 2526 break; 2527 case Language::CUDA: 2528 Lang = "cuda"; 2529 break; 2530 case Language::HIP: 2531 Lang = "hip"; 2532 break; 2533 case Language::CXX: 2534 Lang = "c++"; 2535 break; 2536 case Language::ObjC: 2537 Lang = "objective-c"; 2538 break; 2539 case Language::ObjCXX: 2540 Lang = "objective-c++"; 2541 break; 2542 case Language::RenderScript: 2543 Lang = "renderscript"; 2544 break; 2545 case Language::Asm: 2546 Lang = "assembler-with-cpp"; 2547 break; 2548 case Language::Unknown: 2549 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2550 "Generating -x argument for unknown language (not precompiled)."); 2551 Lang = "ast"; 2552 break; 2553 case Language::LLVM_IR: 2554 Lang = "ir"; 2555 break; 2556 } 2557 2558 GenerateArg(Args, OPT_x, Lang + Header + ModuleMap + Preprocessed, SA); 2559 } 2560 2561 // OPT_INPUT has a unique class, generate it directly. 2562 for (const auto &Input : Opts.Inputs) 2563 Args.push_back(SA(Input.getFile())); 2564 } 2565 2566 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2567 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2568 FrontendOptions &FrontendOpts = Opts; 2569 bool Success = true; 2570 unsigned NumErrorsBefore = Diags.getNumErrors(); 2571 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2572 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2573 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2574 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2575 MERGER, EXTRACTOR, TABLE_INDEX) \ 2576 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2577 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2578 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2579 MERGER, TABLE_INDEX) 2580 #include "clang/Driver/Options.inc" 2581 #undef FRONTEND_OPTION_WITH_MARSHALLING 2582 2583 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2584 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2585 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2586 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2587 assert(ProgramAction && "Option specifier not in Action_Group."); 2588 2589 if (ProgramAction == frontend::ASTDump && 2590 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2591 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2592 .CaseLower("default", ADOF_Default) 2593 .CaseLower("json", ADOF_JSON) 2594 .Default(std::numeric_limits<unsigned>::max()); 2595 2596 if (Val != std::numeric_limits<unsigned>::max()) 2597 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2598 else { 2599 Diags.Report(diag::err_drv_invalid_value) 2600 << A->getAsString(Args) << A->getValue(); 2601 Opts.ASTDumpFormat = ADOF_Default; 2602 } 2603 } 2604 2605 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2606 Opts.FixItSuffix = A->getValue(); 2607 2608 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2609 StringRef ArgStr = 2610 Args.hasArg(OPT_interface_stub_version_EQ) 2611 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2612 : "experimental-ifs-v2"; 2613 if (ArgStr == "experimental-yaml-elf-v1" || 2614 ArgStr == "experimental-ifs-v1" || 2615 ArgStr == "experimental-tapi-elf-v1") { 2616 std::string ErrorMessage = 2617 "Invalid interface stub format: " + ArgStr.str() + 2618 " is deprecated."; 2619 Diags.Report(diag::err_drv_invalid_value) 2620 << "Must specify a valid interface stub format type, ie: " 2621 "-interface-stub-version=experimental-ifs-v2" 2622 << ErrorMessage; 2623 ProgramAction = frontend::ParseSyntaxOnly; 2624 } else if (!ArgStr.startswith("experimental-ifs-")) { 2625 std::string ErrorMessage = 2626 "Invalid interface stub format: " + ArgStr.str() + "."; 2627 Diags.Report(diag::err_drv_invalid_value) 2628 << "Must specify a valid interface stub format type, ie: " 2629 "-interface-stub-version=experimental-ifs-v2" 2630 << ErrorMessage; 2631 ProgramAction = frontend::ParseSyntaxOnly; 2632 } 2633 } 2634 2635 Opts.ProgramAction = *ProgramAction; 2636 } 2637 2638 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2639 Opts.Plugins.emplace_back(A->getValue(0)); 2640 Opts.ProgramAction = frontend::PluginAction; 2641 Opts.ActionName = A->getValue(); 2642 } 2643 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2644 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2645 2646 for (const std::string &Arg : 2647 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2648 std::string BlockName; 2649 unsigned MajorVersion; 2650 unsigned MinorVersion; 2651 bool Hashed; 2652 std::string UserInfo; 2653 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2654 MinorVersion, Hashed, UserInfo)) { 2655 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2656 2657 continue; 2658 } 2659 2660 // Add the testing module file extension. 2661 Opts.ModuleFileExtensions.push_back( 2662 std::make_shared<TestModuleFileExtension>( 2663 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2664 } 2665 2666 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2667 Opts.CodeCompletionAt = 2668 ParsedSourceLocation::FromString(A->getValue()); 2669 if (Opts.CodeCompletionAt.FileName.empty()) 2670 Diags.Report(diag::err_drv_invalid_value) 2671 << A->getAsString(Args) << A->getValue(); 2672 } 2673 2674 Opts.Plugins = Args.getAllArgValues(OPT_load); 2675 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2676 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2677 // Only the -fmodule-file=<file> form. 2678 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2679 StringRef Val = A->getValue(); 2680 if (Val.find('=') == StringRef::npos) 2681 Opts.ModuleFiles.push_back(std::string(Val)); 2682 } 2683 2684 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2685 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2686 << "-emit-module"; 2687 2688 if (Args.hasArg(OPT_aux_target_cpu)) 2689 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2690 if (Args.hasArg(OPT_aux_target_feature)) 2691 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2692 2693 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2694 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2695 Diags.Report(diag::err_drv_argument_not_allowed_with) 2696 << "ARC migration" << "ObjC migration"; 2697 } 2698 2699 InputKind DashX(Language::Unknown); 2700 if (const Arg *A = Args.getLastArg(OPT_x)) { 2701 StringRef XValue = A->getValue(); 2702 2703 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2704 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2705 bool Preprocessed = XValue.consume_back("-cpp-output"); 2706 bool ModuleMap = XValue.consume_back("-module-map"); 2707 IsHeaderFile = !Preprocessed && !ModuleMap && 2708 XValue != "precompiled-header" && 2709 XValue.consume_back("-header"); 2710 2711 // Principal languages. 2712 DashX = llvm::StringSwitch<InputKind>(XValue) 2713 .Case("c", Language::C) 2714 .Case("cl", Language::OpenCL) 2715 .Case("cuda", Language::CUDA) 2716 .Case("hip", Language::HIP) 2717 .Case("c++", Language::CXX) 2718 .Case("objective-c", Language::ObjC) 2719 .Case("objective-c++", Language::ObjCXX) 2720 .Case("renderscript", Language::RenderScript) 2721 .Default(Language::Unknown); 2722 2723 // "objc[++]-cpp-output" is an acceptable synonym for 2724 // "objective-c[++]-cpp-output". 2725 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2726 DashX = llvm::StringSwitch<InputKind>(XValue) 2727 .Case("objc", Language::ObjC) 2728 .Case("objc++", Language::ObjCXX) 2729 .Default(Language::Unknown); 2730 2731 // Some special cases cannot be combined with suffixes. 2732 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2733 DashX = llvm::StringSwitch<InputKind>(XValue) 2734 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2735 .Case("assembler-with-cpp", Language::Asm) 2736 .Cases("ast", "pcm", "precompiled-header", 2737 InputKind(Language::Unknown, InputKind::Precompiled)) 2738 .Case("ir", Language::LLVM_IR) 2739 .Default(Language::Unknown); 2740 2741 if (DashX.isUnknown()) 2742 Diags.Report(diag::err_drv_invalid_value) 2743 << A->getAsString(Args) << A->getValue(); 2744 2745 if (Preprocessed) 2746 DashX = DashX.getPreprocessed(); 2747 if (ModuleMap) 2748 DashX = DashX.withFormat(InputKind::ModuleMap); 2749 } 2750 2751 // '-' is the default input if none is given. 2752 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2753 Opts.Inputs.clear(); 2754 if (Inputs.empty()) 2755 Inputs.push_back("-"); 2756 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2757 InputKind IK = DashX; 2758 if (IK.isUnknown()) { 2759 IK = FrontendOptions::getInputKindForExtension( 2760 StringRef(Inputs[i]).rsplit('.').second); 2761 // FIXME: Warn on this? 2762 if (IK.isUnknown()) 2763 IK = Language::C; 2764 // FIXME: Remove this hack. 2765 if (i == 0) 2766 DashX = IK; 2767 } 2768 2769 bool IsSystem = false; 2770 2771 // The -emit-module action implicitly takes a module map. 2772 if (Opts.ProgramAction == frontend::GenerateModule && 2773 IK.getFormat() == InputKind::Source) { 2774 IK = IK.withFormat(InputKind::ModuleMap); 2775 IsSystem = Opts.IsSystemModule; 2776 } 2777 2778 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2779 } 2780 2781 Opts.DashX = DashX; 2782 2783 return Diags.getNumErrors() == NumErrorsBefore; 2784 } 2785 2786 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2787 void *MainAddr) { 2788 std::string ClangExecutable = 2789 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2790 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2791 } 2792 2793 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2794 SmallVectorImpl<const char *> &Args, 2795 CompilerInvocation::StringAllocator SA) { 2796 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2797 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2798 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2799 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2800 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2801 MERGER, EXTRACTOR, TABLE_INDEX) \ 2802 GENERATE_OPTION_WITH_MARSHALLING( \ 2803 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2804 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2805 #include "clang/Driver/Options.inc" 2806 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2807 2808 if (Opts.UseLibcxx) 2809 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2810 2811 if (!Opts.ModuleCachePath.empty()) 2812 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2813 2814 for (const auto &File : Opts.PrebuiltModuleFiles) 2815 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2816 2817 for (const auto &Path : Opts.PrebuiltModulePaths) 2818 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2819 2820 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2821 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2822 2823 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2824 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2825 llvm::Optional<bool> IsFramework, 2826 llvm::Optional<bool> IgnoreSysRoot) { 2827 return llvm::find(Groups, Entry.Group) != Groups.end() && 2828 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2829 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2830 }; 2831 2832 auto It = Opts.UserEntries.begin(); 2833 auto End = Opts.UserEntries.end(); 2834 2835 // Add -I..., -F..., and -index-header-map options in order. 2836 for (; It < End && 2837 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2838 ++It) { 2839 OptSpecifier Opt = [It, Matches]() { 2840 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2841 return OPT_F; 2842 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2843 return OPT_I; 2844 if (Matches(*It, frontend::Angled, true, true)) 2845 return OPT_F; 2846 if (Matches(*It, frontend::Angled, false, true)) 2847 return OPT_I; 2848 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2849 }(); 2850 2851 if (It->Group == frontend::IndexHeaderMap) 2852 GenerateArg(Args, OPT_index_header_map, SA); 2853 GenerateArg(Args, Opt, It->Path, SA); 2854 }; 2855 2856 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2857 // have already been generated as "-I[xx]yy". If that's the case, their 2858 // position on command line was such that this has no semantic impact on 2859 // include paths. 2860 for (; It < End && 2861 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2862 ++It) { 2863 OptSpecifier Opt = 2864 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2865 GenerateArg(Args, Opt, It->Path, SA); 2866 } 2867 2868 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2869 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2870 // command line was such that this has no semantic impact on include paths. 2871 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2872 GenerateArg(Args, OPT_idirafter, It->Path, SA); 2873 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 2874 GenerateArg(Args, OPT_iquote, It->Path, SA); 2875 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 2876 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 2877 It->Path, SA); 2878 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 2879 GenerateArg(Args, OPT_iframework, It->Path, SA); 2880 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 2881 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 2882 2883 // Add the paths for the various language specific isystem flags. 2884 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 2885 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 2886 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 2887 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 2888 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 2889 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 2890 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 2891 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 2892 2893 // Add the internal paths from a driver that detects standard include paths. 2894 // Note: Some paths that came from "-internal-isystem" arguments may have 2895 // already been generated as "-isystem". If that's the case, their position on 2896 // command line was such that this has no semantic impact on include paths. 2897 for (; It < End && 2898 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 2899 ++It) { 2900 OptSpecifier Opt = It->Group == frontend::System 2901 ? OPT_internal_isystem 2902 : OPT_internal_externc_isystem; 2903 GenerateArg(Args, Opt, It->Path, SA); 2904 } 2905 2906 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 2907 2908 // Add the path prefixes which are implicitly treated as being system headers. 2909 for (const auto &P : Opts.SystemHeaderPrefixes) { 2910 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 2911 : OPT_no_system_header_prefix; 2912 GenerateArg(Args, Opt, P.Prefix, SA); 2913 } 2914 2915 for (const std::string &F : Opts.VFSOverlayFiles) 2916 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 2917 } 2918 2919 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2920 DiagnosticsEngine &Diags, 2921 const std::string &WorkingDir) { 2922 HeaderSearchOptions *HeaderSearchOpts = &Opts; 2923 bool Success = true; 2924 2925 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2926 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2927 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2928 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2929 MERGER, EXTRACTOR, TABLE_INDEX) \ 2930 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2931 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2932 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2933 MERGER, TABLE_INDEX) 2934 #include "clang/Driver/Options.inc" 2935 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2936 2937 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2938 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2939 2940 // Canonicalize -fmodules-cache-path before storing it. 2941 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2942 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2943 if (WorkingDir.empty()) 2944 llvm::sys::fs::make_absolute(P); 2945 else 2946 llvm::sys::fs::make_absolute(WorkingDir, P); 2947 } 2948 llvm::sys::path::remove_dots(P); 2949 Opts.ModuleCachePath = std::string(P.str()); 2950 2951 // Only the -fmodule-file=<name>=<file> form. 2952 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2953 StringRef Val = A->getValue(); 2954 if (Val.find('=') != StringRef::npos){ 2955 auto Split = Val.split('='); 2956 Opts.PrebuiltModuleFiles.insert( 2957 {std::string(Split.first), std::string(Split.second)}); 2958 } 2959 } 2960 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2961 Opts.AddPrebuiltModulePath(A->getValue()); 2962 2963 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2964 StringRef MacroDef = A->getValue(); 2965 Opts.ModulesIgnoreMacros.insert( 2966 llvm::CachedHashString(MacroDef.split('=').first)); 2967 } 2968 2969 // Add -I..., -F..., and -index-header-map options in order. 2970 bool IsIndexHeaderMap = false; 2971 bool IsSysrootSpecified = 2972 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2973 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2974 if (A->getOption().matches(OPT_index_header_map)) { 2975 // -index-header-map applies to the next -I or -F. 2976 IsIndexHeaderMap = true; 2977 continue; 2978 } 2979 2980 frontend::IncludeDirGroup Group = 2981 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2982 2983 bool IsFramework = A->getOption().matches(OPT_F); 2984 std::string Path = A->getValue(); 2985 2986 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2987 SmallString<32> Buffer; 2988 llvm::sys::path::append(Buffer, Opts.Sysroot, 2989 llvm::StringRef(A->getValue()).substr(1)); 2990 Path = std::string(Buffer.str()); 2991 } 2992 2993 Opts.AddPath(Path, Group, IsFramework, 2994 /*IgnoreSysroot*/ true); 2995 IsIndexHeaderMap = false; 2996 } 2997 2998 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 2999 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3000 for (const auto *A : 3001 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3002 if (A->getOption().matches(OPT_iprefix)) 3003 Prefix = A->getValue(); 3004 else if (A->getOption().matches(OPT_iwithprefix)) 3005 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3006 else 3007 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3008 } 3009 3010 for (const auto *A : Args.filtered(OPT_idirafter)) 3011 Opts.AddPath(A->getValue(), frontend::After, false, true); 3012 for (const auto *A : Args.filtered(OPT_iquote)) 3013 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3014 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3015 Opts.AddPath(A->getValue(), frontend::System, false, 3016 !A->getOption().matches(OPT_iwithsysroot)); 3017 for (const auto *A : Args.filtered(OPT_iframework)) 3018 Opts.AddPath(A->getValue(), frontend::System, true, true); 3019 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3020 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3021 /*IgnoreSysRoot=*/false); 3022 3023 // Add the paths for the various language specific isystem flags. 3024 for (const auto *A : Args.filtered(OPT_c_isystem)) 3025 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3026 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3027 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3028 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3029 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3030 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3031 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3032 3033 // Add the internal paths from a driver that detects standard include paths. 3034 for (const auto *A : 3035 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3036 frontend::IncludeDirGroup Group = frontend::System; 3037 if (A->getOption().matches(OPT_internal_externc_isystem)) 3038 Group = frontend::ExternCSystem; 3039 Opts.AddPath(A->getValue(), Group, false, true); 3040 } 3041 3042 // Add the path prefixes which are implicitly treated as being system headers. 3043 for (const auto *A : 3044 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3045 Opts.AddSystemHeaderPrefix( 3046 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3047 3048 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3049 Opts.AddVFSOverlayFile(A->getValue()); 3050 3051 return Success; 3052 } 3053 3054 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 3055 const llvm::Triple &T, 3056 std::vector<std::string> &Includes, 3057 LangStandard::Kind LangStd) { 3058 // Set some properties which depend solely on the input kind; it would be nice 3059 // to move these to the language standard, and have the driver resolve the 3060 // input kind + language standard. 3061 // 3062 // FIXME: Perhaps a better model would be for a single source file to have 3063 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 3064 // simultaneously active? 3065 if (IK.getLanguage() == Language::Asm) { 3066 Opts.AsmPreprocessor = 1; 3067 } else if (IK.isObjectiveC()) { 3068 Opts.ObjC = 1; 3069 } 3070 3071 if (LangStd == LangStandard::lang_unspecified) { 3072 // Based on the base language, pick one. 3073 switch (IK.getLanguage()) { 3074 case Language::Unknown: 3075 case Language::LLVM_IR: 3076 llvm_unreachable("Invalid input kind!"); 3077 case Language::OpenCL: 3078 LangStd = LangStandard::lang_opencl10; 3079 break; 3080 case Language::CUDA: 3081 LangStd = LangStandard::lang_cuda; 3082 break; 3083 case Language::Asm: 3084 case Language::C: 3085 #if defined(CLANG_DEFAULT_STD_C) 3086 LangStd = CLANG_DEFAULT_STD_C; 3087 #else 3088 // The PS4 uses C99 as the default C standard. 3089 if (T.isPS4()) 3090 LangStd = LangStandard::lang_gnu99; 3091 else 3092 LangStd = LangStandard::lang_gnu17; 3093 #endif 3094 break; 3095 case Language::ObjC: 3096 #if defined(CLANG_DEFAULT_STD_C) 3097 LangStd = CLANG_DEFAULT_STD_C; 3098 #else 3099 LangStd = LangStandard::lang_gnu11; 3100 #endif 3101 break; 3102 case Language::CXX: 3103 case Language::ObjCXX: 3104 #if defined(CLANG_DEFAULT_STD_CXX) 3105 LangStd = CLANG_DEFAULT_STD_CXX; 3106 #else 3107 LangStd = LangStandard::lang_gnucxx14; 3108 #endif 3109 break; 3110 case Language::RenderScript: 3111 LangStd = LangStandard::lang_c99; 3112 break; 3113 case Language::HIP: 3114 LangStd = LangStandard::lang_hip; 3115 break; 3116 } 3117 } 3118 3119 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3120 Opts.LangStd = LangStd; 3121 Opts.LineComment = Std.hasLineComments(); 3122 Opts.C99 = Std.isC99(); 3123 Opts.C11 = Std.isC11(); 3124 Opts.C17 = Std.isC17(); 3125 Opts.C2x = Std.isC2x(); 3126 Opts.CPlusPlus = Std.isCPlusPlus(); 3127 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 3128 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 3129 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 3130 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 3131 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 3132 Opts.GNUMode = Std.isGNUMode(); 3133 Opts.GNUCVersion = 0; 3134 Opts.HexFloats = Std.hasHexFloats(); 3135 Opts.ImplicitInt = Std.hasImplicitInt(); 3136 3137 Opts.CPlusPlusModules = Opts.CPlusPlus20; 3138 3139 // Set OpenCL Version. 3140 Opts.OpenCL = Std.isOpenCL(); 3141 if (LangStd == LangStandard::lang_opencl10) 3142 Opts.OpenCLVersion = 100; 3143 else if (LangStd == LangStandard::lang_opencl11) 3144 Opts.OpenCLVersion = 110; 3145 else if (LangStd == LangStandard::lang_opencl12) 3146 Opts.OpenCLVersion = 120; 3147 else if (LangStd == LangStandard::lang_opencl20) 3148 Opts.OpenCLVersion = 200; 3149 else if (LangStd == LangStandard::lang_opencl30) 3150 Opts.OpenCLVersion = 300; 3151 else if (LangStd == LangStandard::lang_openclcpp) 3152 Opts.OpenCLCPlusPlusVersion = 100; 3153 3154 // OpenCL has some additional defaults. 3155 if (Opts.OpenCL) { 3156 Opts.AltiVec = 0; 3157 Opts.ZVector = 0; 3158 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3159 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 3160 Opts.OpenCLPipe = Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3161 Opts.OpenCLGenericAddressSpace = 3162 Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3163 3164 // Include default header file for OpenCL. 3165 if (Opts.IncludeDefaultHeader) { 3166 if (Opts.DeclareOpenCLBuiltins) { 3167 // Only include base header file for builtin types and constants. 3168 Includes.push_back("opencl-c-base.h"); 3169 } else { 3170 Includes.push_back("opencl-c.h"); 3171 } 3172 } 3173 } 3174 3175 Opts.HIP = IK.getLanguage() == Language::HIP; 3176 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 3177 if (Opts.HIP) { 3178 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 3179 // fuses multiplication/addition instructions without contract flag from 3180 // device library functions in LLVM bitcode, which causes accuracy loss in 3181 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 3182 // For device library functions in bitcode to work, 'Strict' or 'Standard' 3183 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 3184 // FP contract option is used to allow fuse across statements in frontend 3185 // whereas respecting contract flag in backend. 3186 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3187 } else if (Opts.CUDA) { 3188 // Allow fuse across statements disregarding pragmas. 3189 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3190 } 3191 3192 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 3193 3194 // OpenCL and C++ both have bool, true, false keywords. 3195 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 3196 3197 // OpenCL has half keyword 3198 Opts.Half = Opts.OpenCL; 3199 } 3200 3201 /// Check if input file kind and language standard are compatible. 3202 static bool IsInputCompatibleWithStandard(InputKind IK, 3203 const LangStandard &S) { 3204 switch (IK.getLanguage()) { 3205 case Language::Unknown: 3206 case Language::LLVM_IR: 3207 llvm_unreachable("should not parse language flags for this input"); 3208 3209 case Language::C: 3210 case Language::ObjC: 3211 case Language::RenderScript: 3212 return S.getLanguage() == Language::C; 3213 3214 case Language::OpenCL: 3215 return S.getLanguage() == Language::OpenCL; 3216 3217 case Language::CXX: 3218 case Language::ObjCXX: 3219 return S.getLanguage() == Language::CXX; 3220 3221 case Language::CUDA: 3222 // FIXME: What -std= values should be permitted for CUDA compilations? 3223 return S.getLanguage() == Language::CUDA || 3224 S.getLanguage() == Language::CXX; 3225 3226 case Language::HIP: 3227 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3228 3229 case Language::Asm: 3230 // Accept (and ignore) all -std= values. 3231 // FIXME: The -std= value is not ignored; it affects the tokenization 3232 // and preprocessing rules if we're preprocessing this asm input. 3233 return true; 3234 } 3235 3236 llvm_unreachable("unexpected input language"); 3237 } 3238 3239 /// Get language name for given input kind. 3240 static const StringRef GetInputKindName(InputKind IK) { 3241 switch (IK.getLanguage()) { 3242 case Language::C: 3243 return "C"; 3244 case Language::ObjC: 3245 return "Objective-C"; 3246 case Language::CXX: 3247 return "C++"; 3248 case Language::ObjCXX: 3249 return "Objective-C++"; 3250 case Language::OpenCL: 3251 return "OpenCL"; 3252 case Language::CUDA: 3253 return "CUDA"; 3254 case Language::RenderScript: 3255 return "RenderScript"; 3256 case Language::HIP: 3257 return "HIP"; 3258 3259 case Language::Asm: 3260 return "Asm"; 3261 case Language::LLVM_IR: 3262 return "LLVM IR"; 3263 3264 case Language::Unknown: 3265 break; 3266 } 3267 llvm_unreachable("unknown input language"); 3268 } 3269 3270 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3271 SmallVectorImpl<const char *> &Args, 3272 StringAllocator SA, 3273 const llvm::Triple &T) { 3274 OptSpecifier StdOpt; 3275 switch (Opts.LangStd) { 3276 case LangStandard::lang_opencl10: 3277 case LangStandard::lang_opencl11: 3278 case LangStandard::lang_opencl12: 3279 case LangStandard::lang_opencl20: 3280 case LangStandard::lang_opencl30: 3281 case LangStandard::lang_openclcpp: 3282 StdOpt = OPT_cl_std_EQ; 3283 break; 3284 default: 3285 StdOpt = OPT_std_EQ; 3286 break; 3287 } 3288 3289 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3290 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3291 3292 if (Opts.IncludeDefaultHeader) 3293 GenerateArg(Args, OPT_finclude_default_header, SA); 3294 if (Opts.DeclareOpenCLBuiltins) 3295 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3296 3297 const LangOptions *LangOpts = &Opts; 3298 3299 #define LANG_OPTION_WITH_MARSHALLING( \ 3300 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3301 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3302 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3303 MERGER, EXTRACTOR, TABLE_INDEX) \ 3304 GENERATE_OPTION_WITH_MARSHALLING( \ 3305 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3306 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3307 #include "clang/Driver/Options.inc" 3308 #undef LANG_OPTION_WITH_MARSHALLING 3309 3310 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3311 3312 if (Opts.ObjC) { 3313 std::string Buffer; 3314 llvm::raw_string_ostream Stream(Buffer); 3315 Stream << Opts.ObjCRuntime; 3316 GenerateArg(Args, OPT_fobjc_runtime_EQ, Stream.str(), SA); 3317 3318 if (Opts.GC == LangOptions::GCOnly) 3319 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3320 else if (Opts.GC == LangOptions::HybridGC) 3321 GenerateArg(Args, OPT_fobjc_gc, SA); 3322 else if (Opts.ObjCAutoRefCount == 1) 3323 GenerateArg(Args, OPT_fobjc_arc, SA); 3324 3325 if (Opts.ObjCWeakRuntime) 3326 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3327 3328 if (Opts.ObjCWeak) 3329 GenerateArg(Args, OPT_fobjc_weak, SA); 3330 3331 if (Opts.ObjCSubscriptingLegacyRuntime) 3332 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3333 } 3334 3335 if (Opts.GNUCVersion != 0) { 3336 unsigned Major = Opts.GNUCVersion / 100 / 100; 3337 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3338 unsigned Patch = Opts.GNUCVersion % 100; 3339 GenerateArg(Args, OPT_fgnuc_version_EQ, 3340 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3341 } 3342 3343 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3344 GenerateArg(Args, OPT_ftrapv, SA); 3345 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3346 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3347 GenerateArg(Args, OPT_fwrapv, SA); 3348 } 3349 3350 if (Opts.MSCompatibilityVersion != 0) { 3351 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3352 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3353 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3354 GenerateArg(Args, OPT_fms_compatibility_version, 3355 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3356 } 3357 3358 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3359 if (!Opts.Trigraphs) 3360 GenerateArg(Args, OPT_fno_trigraphs, SA); 3361 } else { 3362 if (Opts.Trigraphs) 3363 GenerateArg(Args, OPT_ftrigraphs, SA); 3364 } 3365 3366 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3367 GenerateArg(Args, OPT_fblocks, SA); 3368 3369 if (Opts.ConvergentFunctions && 3370 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3371 GenerateArg(Args, OPT_fconvergent_functions, SA); 3372 3373 if (Opts.NoBuiltin && !Opts.Freestanding) 3374 GenerateArg(Args, OPT_fno_builtin, SA); 3375 3376 if (!Opts.NoBuiltin) 3377 for (const auto &Func : Opts.NoBuiltinFuncs) 3378 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3379 3380 if (Opts.LongDoubleSize == 128) 3381 GenerateArg(Args, OPT_mlong_double_128, SA); 3382 else if (Opts.LongDoubleSize == 64) 3383 GenerateArg(Args, OPT_mlong_double_64, SA); 3384 3385 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3386 3387 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3388 // '-fopenmp-targets='. 3389 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3390 GenerateArg(Args, OPT_fopenmp, SA); 3391 3392 if (Opts.OpenMP != 50) 3393 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3394 3395 if (!Opts.OpenMPUseTLS) 3396 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3397 3398 if (Opts.OpenMPIsDevice) 3399 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3400 3401 if (Opts.OpenMPIRBuilder) 3402 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3403 } 3404 3405 if (Opts.OpenMPSimd) { 3406 GenerateArg(Args, OPT_fopenmp_simd, SA); 3407 3408 if (Opts.OpenMP != 50) 3409 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3410 } 3411 3412 if (Opts.OpenMPCUDANumSMs != 0) 3413 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3414 Twine(Opts.OpenMPCUDANumSMs), SA); 3415 3416 if (Opts.OpenMPCUDABlocksPerSM != 0) 3417 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3418 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3419 3420 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3421 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3422 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3423 3424 if (!Opts.OMPTargetTriples.empty()) { 3425 std::string Targets; 3426 llvm::raw_string_ostream OS(Targets); 3427 llvm::interleave( 3428 Opts.OMPTargetTriples, OS, 3429 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3430 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3431 } 3432 3433 if (!Opts.OMPHostIRFile.empty()) 3434 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3435 3436 if (Opts.OpenMPCUDAMode) 3437 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3438 3439 if (Opts.OpenMPCUDATargetParallel) 3440 GenerateArg(Args, OPT_fopenmp_cuda_parallel_target_regions, SA); 3441 3442 if (Opts.OpenMPCUDAForceFullRuntime) 3443 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3444 3445 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3446 // generated from CodeGenOptions. 3447 3448 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3449 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3450 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3451 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3452 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3453 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3454 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3455 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3456 3457 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3458 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3459 3460 // Conflating '-fsanitize-system-blacklist' and '-fsanitize-blacklist'. 3461 for (const std::string &F : Opts.NoSanitizeFiles) 3462 GenerateArg(Args, OPT_fsanitize_blacklist, F, SA); 3463 3464 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3465 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3466 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3467 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3468 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3469 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3470 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3471 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3472 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3473 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3474 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3475 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3476 3477 if (Opts.getSignReturnAddressScope() == 3478 LangOptions::SignReturnAddressScopeKind::All) 3479 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3480 else if (Opts.getSignReturnAddressScope() == 3481 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3482 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3483 3484 if (Opts.getSignReturnAddressKey() == 3485 LangOptions::SignReturnAddressKeyKind::BKey) 3486 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3487 } 3488 3489 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3490 InputKind IK, const llvm::Triple &T, 3491 std::vector<std::string> &Includes, 3492 DiagnosticsEngine &Diags) { 3493 unsigned NumErrorsBefore = Diags.getNumErrors(); 3494 3495 // FIXME: Cleanup per-file based stuff. 3496 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3497 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3498 LangStd = LangStandard::getLangKind(A->getValue()); 3499 if (LangStd == LangStandard::lang_unspecified) { 3500 Diags.Report(diag::err_drv_invalid_value) 3501 << A->getAsString(Args) << A->getValue(); 3502 // Report supported standards with short description. 3503 for (unsigned KindValue = 0; 3504 KindValue != LangStandard::lang_unspecified; 3505 ++KindValue) { 3506 const LangStandard &Std = LangStandard::getLangStandardForKind( 3507 static_cast<LangStandard::Kind>(KindValue)); 3508 if (IsInputCompatibleWithStandard(IK, Std)) { 3509 auto Diag = Diags.Report(diag::note_drv_use_standard); 3510 Diag << Std.getName() << Std.getDescription(); 3511 unsigned NumAliases = 0; 3512 #define LANGSTANDARD(id, name, lang, desc, features) 3513 #define LANGSTANDARD_ALIAS(id, alias) \ 3514 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3515 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3516 #include "clang/Basic/LangStandards.def" 3517 Diag << NumAliases; 3518 #define LANGSTANDARD(id, name, lang, desc, features) 3519 #define LANGSTANDARD_ALIAS(id, alias) \ 3520 if (KindValue == LangStandard::lang_##id) Diag << alias; 3521 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3522 #include "clang/Basic/LangStandards.def" 3523 } 3524 } 3525 } else { 3526 // Valid standard, check to make sure language and standard are 3527 // compatible. 3528 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3529 if (!IsInputCompatibleWithStandard(IK, Std)) { 3530 Diags.Report(diag::err_drv_argument_not_allowed_with) 3531 << A->getAsString(Args) << GetInputKindName(IK); 3532 } 3533 } 3534 } 3535 3536 // -cl-std only applies for OpenCL language standards. 3537 // Override the -std option in this case. 3538 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3539 LangStandard::Kind OpenCLLangStd 3540 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3541 .Cases("cl", "CL", LangStandard::lang_opencl10) 3542 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3543 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3544 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3545 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3546 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3547 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 3548 .Default(LangStandard::lang_unspecified); 3549 3550 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3551 Diags.Report(diag::err_drv_invalid_value) 3552 << A->getAsString(Args) << A->getValue(); 3553 } 3554 else 3555 LangStd = OpenCLLangStd; 3556 } 3557 3558 // These need to be parsed now. They are used to set OpenCL defaults. 3559 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3560 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3561 3562 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd); 3563 3564 // The key paths of codegen options defined in Options.td start with 3565 // "LangOpts->". Let's provide the expected variable name and type. 3566 LangOptions *LangOpts = &Opts; 3567 bool Success = true; 3568 3569 #define LANG_OPTION_WITH_MARSHALLING( \ 3570 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3571 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3572 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3573 MERGER, EXTRACTOR, TABLE_INDEX) \ 3574 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 3575 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3576 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 3577 MERGER, TABLE_INDEX) 3578 #include "clang/Driver/Options.inc" 3579 #undef LANG_OPTION_WITH_MARSHALLING 3580 3581 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3582 StringRef Name = A->getValue(); 3583 if (Name == "full" || Name == "branch") { 3584 Opts.CFProtectionBranch = 1; 3585 } 3586 } 3587 3588 if (Opts.ObjC) { 3589 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3590 StringRef value = arg->getValue(); 3591 if (Opts.ObjCRuntime.tryParse(value)) 3592 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3593 } 3594 3595 if (Args.hasArg(OPT_fobjc_gc_only)) 3596 Opts.setGC(LangOptions::GCOnly); 3597 else if (Args.hasArg(OPT_fobjc_gc)) 3598 Opts.setGC(LangOptions::HybridGC); 3599 else if (Args.hasArg(OPT_fobjc_arc)) { 3600 Opts.ObjCAutoRefCount = 1; 3601 if (!Opts.ObjCRuntime.allowsARC()) 3602 Diags.Report(diag::err_arc_unsupported_on_runtime); 3603 } 3604 3605 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3606 // whether the feature is actually enabled. This is predominantly 3607 // determined by -fobjc-runtime, but we allow it to be overridden 3608 // from the command line for testing purposes. 3609 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3610 Opts.ObjCWeakRuntime = 1; 3611 else 3612 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3613 3614 // ObjCWeak determines whether __weak is actually enabled. 3615 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3616 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3617 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3618 assert(!Opts.ObjCWeak); 3619 } else if (Opts.getGC() != LangOptions::NonGC) { 3620 Diags.Report(diag::err_objc_weak_with_gc); 3621 } else if (!Opts.ObjCWeakRuntime) { 3622 Diags.Report(diag::err_objc_weak_unsupported); 3623 } else { 3624 Opts.ObjCWeak = 1; 3625 } 3626 } else if (Opts.ObjCAutoRefCount) { 3627 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3628 } 3629 3630 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3631 Opts.ObjCSubscriptingLegacyRuntime = 3632 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3633 } 3634 3635 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3636 // Check that the version has 1 to 3 components and the minor and patch 3637 // versions fit in two decimal digits. 3638 VersionTuple GNUCVer; 3639 bool Invalid = GNUCVer.tryParse(A->getValue()); 3640 unsigned Major = GNUCVer.getMajor(); 3641 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3642 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3643 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3644 Diags.Report(diag::err_drv_invalid_value) 3645 << A->getAsString(Args) << A->getValue(); 3646 } 3647 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3648 } 3649 3650 if (Args.hasArg(OPT_ftrapv)) { 3651 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3652 // Set the handler, if one is specified. 3653 Opts.OverflowHandler = 3654 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3655 } 3656 else if (Args.hasArg(OPT_fwrapv)) 3657 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3658 3659 Opts.MSCompatibilityVersion = 0; 3660 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3661 VersionTuple VT; 3662 if (VT.tryParse(A->getValue())) 3663 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3664 << A->getValue(); 3665 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3666 VT.getMinor().getValueOr(0) * 100000 + 3667 VT.getSubminor().getValueOr(0); 3668 } 3669 3670 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3671 // is specified, or -std is set to a conforming mode. 3672 // Trigraphs are disabled by default in c++1z onwards. 3673 // For z/OS, trigraphs are enabled by default (without regard to the above). 3674 Opts.Trigraphs = 3675 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3676 Opts.Trigraphs = 3677 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3678 3679 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3680 && Opts.OpenCLVersion == 200); 3681 3682 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3683 Opts.SYCLIsDevice || 3684 Args.hasArg(OPT_fconvergent_functions); 3685 3686 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3687 if (!Opts.NoBuiltin) 3688 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3689 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3690 ? 128 3691 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3692 if (Opts.FastRelaxedMath) 3693 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3694 llvm::sort(Opts.ModuleFeatures); 3695 3696 // -mrtd option 3697 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3698 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3699 Diags.Report(diag::err_drv_argument_not_allowed_with) 3700 << A->getSpelling() << "-fdefault-calling-conv"; 3701 else { 3702 if (T.getArch() != llvm::Triple::x86) 3703 Diags.Report(diag::err_drv_argument_not_allowed_with) 3704 << A->getSpelling() << T.getTriple(); 3705 else 3706 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3707 } 3708 } 3709 3710 // Check if -fopenmp is specified and set default version to 5.0. 3711 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3712 // Check if -fopenmp-simd is specified. 3713 bool IsSimdSpecified = 3714 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3715 /*Default=*/false); 3716 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3717 Opts.OpenMPUseTLS = 3718 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3719 Opts.OpenMPIsDevice = 3720 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3721 Opts.OpenMPIRBuilder = 3722 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3723 bool IsTargetSpecified = 3724 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3725 3726 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3727 3728 if (Opts.OpenMP || Opts.OpenMPSimd) { 3729 if (int Version = getLastArgIntValue( 3730 Args, OPT_fopenmp_version_EQ, 3731 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3732 Opts.OpenMP = Version; 3733 // Provide diagnostic when a given target is not expected to be an OpenMP 3734 // device or host. 3735 if (!Opts.OpenMPIsDevice) { 3736 switch (T.getArch()) { 3737 default: 3738 break; 3739 // Add unsupported host targets here: 3740 case llvm::Triple::nvptx: 3741 case llvm::Triple::nvptx64: 3742 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3743 break; 3744 } 3745 } 3746 } 3747 3748 // Set the flag to prevent the implementation from emitting device exception 3749 // handling code for those requiring so. 3750 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3751 Opts.OpenCLCPlusPlus) { 3752 Opts.Exceptions = 0; 3753 Opts.CXXExceptions = 0; 3754 } 3755 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3756 Opts.OpenMPCUDANumSMs = 3757 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3758 Opts.OpenMPCUDANumSMs, Diags); 3759 Opts.OpenMPCUDABlocksPerSM = 3760 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3761 Opts.OpenMPCUDABlocksPerSM, Diags); 3762 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3763 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3764 Opts.OpenMPCUDAReductionBufNum, Diags); 3765 } 3766 3767 // Get the OpenMP target triples if any. 3768 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3769 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3770 auto getArchPtrSize = [](const llvm::Triple &T) { 3771 if (T.isArch16Bit()) 3772 return Arch16Bit; 3773 if (T.isArch32Bit()) 3774 return Arch32Bit; 3775 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3776 return Arch64Bit; 3777 }; 3778 3779 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3780 llvm::Triple TT(A->getValue(i)); 3781 3782 if (TT.getArch() == llvm::Triple::UnknownArch || 3783 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3784 TT.getArch() == llvm::Triple::nvptx || 3785 TT.getArch() == llvm::Triple::nvptx64 || 3786 TT.getArch() == llvm::Triple::amdgcn || 3787 TT.getArch() == llvm::Triple::x86 || 3788 TT.getArch() == llvm::Triple::x86_64)) 3789 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3790 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3791 Diags.Report(diag::err_drv_incompatible_omp_arch) 3792 << A->getValue(i) << T.str(); 3793 else 3794 Opts.OMPTargetTriples.push_back(TT); 3795 } 3796 } 3797 3798 // Get OpenMP host file path if any and report if a non existent file is 3799 // found 3800 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3801 Opts.OMPHostIRFile = A->getValue(); 3802 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3803 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3804 << Opts.OMPHostIRFile; 3805 } 3806 3807 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3808 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3809 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3810 3811 // Set CUDA support for parallel execution of target regions for OpenMP target 3812 // NVPTX/AMDGCN if specified in options. 3813 Opts.OpenMPCUDATargetParallel = 3814 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3815 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 3816 3817 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3818 Opts.OpenMPCUDAForceFullRuntime = 3819 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3820 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3821 3822 // FIXME: Eliminate this dependency. 3823 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3824 OptSize = getOptimizationLevelSize(Args); 3825 Opts.Optimize = Opt != 0; 3826 Opts.OptimizeSize = OptSize != 0; 3827 3828 // This is the __NO_INLINE__ define, which just depends on things like the 3829 // optimization level and -fno-inline, not actually whether the backend has 3830 // inlining enabled. 3831 Opts.NoInlineDefine = !Opts.Optimize; 3832 if (Arg *InlineArg = Args.getLastArg( 3833 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3834 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3835 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3836 Opts.NoInlineDefine = true; 3837 3838 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3839 StringRef Val = A->getValue(); 3840 if (Val == "fast") 3841 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3842 else if (Val == "on") 3843 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3844 else if (Val == "off") 3845 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3846 else if (Val == "fast-honor-pragmas") 3847 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3848 else 3849 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3850 } 3851 3852 // Parse -fsanitize= arguments. 3853 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3854 Diags, Opts.Sanitize); 3855 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3856 std::vector<std::string> systemBlacklists = 3857 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3858 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3859 systemBlacklists.begin(), systemBlacklists.end()); 3860 3861 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3862 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3863 3864 StringRef Ver = A->getValue(); 3865 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3866 unsigned Major, Minor = 0; 3867 3868 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3869 // y or y.0 (4 <= y <= current version). 3870 if (!VerParts.first.startswith("0") && 3871 !VerParts.first.getAsInteger(10, Major) && 3872 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3873 (Major == 3 ? VerParts.second.size() == 1 && 3874 !VerParts.second.getAsInteger(10, Minor) 3875 : VerParts.first.size() == Ver.size() || 3876 VerParts.second == "0")) { 3877 // Got a valid version number. 3878 if (Major == 3 && Minor <= 8) 3879 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3880 else if (Major <= 4) 3881 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3882 else if (Major <= 6) 3883 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3884 else if (Major <= 7) 3885 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3886 else if (Major <= 9) 3887 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3888 else if (Major <= 11) 3889 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 3890 } else if (Ver != "latest") { 3891 Diags.Report(diag::err_drv_invalid_value) 3892 << A->getAsString(Args) << A->getValue(); 3893 } 3894 } 3895 3896 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3897 StringRef SignScope = A->getValue(); 3898 3899 if (SignScope.equals_lower("none")) 3900 Opts.setSignReturnAddressScope( 3901 LangOptions::SignReturnAddressScopeKind::None); 3902 else if (SignScope.equals_lower("all")) 3903 Opts.setSignReturnAddressScope( 3904 LangOptions::SignReturnAddressScopeKind::All); 3905 else if (SignScope.equals_lower("non-leaf")) 3906 Opts.setSignReturnAddressScope( 3907 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3908 else 3909 Diags.Report(diag::err_drv_invalid_value) 3910 << A->getAsString(Args) << SignScope; 3911 3912 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3913 StringRef SignKey = A->getValue(); 3914 if (!SignScope.empty() && !SignKey.empty()) { 3915 if (SignKey.equals_lower("a_key")) 3916 Opts.setSignReturnAddressKey( 3917 LangOptions::SignReturnAddressKeyKind::AKey); 3918 else if (SignKey.equals_lower("b_key")) 3919 Opts.setSignReturnAddressKey( 3920 LangOptions::SignReturnAddressKeyKind::BKey); 3921 else 3922 Diags.Report(diag::err_drv_invalid_value) 3923 << A->getAsString(Args) << SignKey; 3924 } 3925 } 3926 } 3927 3928 return Success && Diags.getNumErrors() == NumErrorsBefore; 3929 } 3930 3931 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3932 switch (Action) { 3933 case frontend::ASTDeclList: 3934 case frontend::ASTDump: 3935 case frontend::ASTPrint: 3936 case frontend::ASTView: 3937 case frontend::EmitAssembly: 3938 case frontend::EmitBC: 3939 case frontend::EmitHTML: 3940 case frontend::EmitLLVM: 3941 case frontend::EmitLLVMOnly: 3942 case frontend::EmitCodeGenOnly: 3943 case frontend::EmitObj: 3944 case frontend::FixIt: 3945 case frontend::GenerateModule: 3946 case frontend::GenerateModuleInterface: 3947 case frontend::GenerateHeaderModule: 3948 case frontend::GeneratePCH: 3949 case frontend::GenerateInterfaceStubs: 3950 case frontend::ParseSyntaxOnly: 3951 case frontend::ModuleFileInfo: 3952 case frontend::VerifyPCH: 3953 case frontend::PluginAction: 3954 case frontend::RewriteObjC: 3955 case frontend::RewriteTest: 3956 case frontend::RunAnalysis: 3957 case frontend::TemplightDump: 3958 case frontend::MigrateSource: 3959 return false; 3960 3961 case frontend::DumpCompilerOptions: 3962 case frontend::DumpRawTokens: 3963 case frontend::DumpTokens: 3964 case frontend::InitOnly: 3965 case frontend::PrintPreamble: 3966 case frontend::PrintPreprocessedInput: 3967 case frontend::RewriteMacros: 3968 case frontend::RunPreprocessorOnly: 3969 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 3970 return true; 3971 } 3972 llvm_unreachable("invalid frontend action"); 3973 } 3974 3975 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 3976 SmallVectorImpl<const char *> &Args, 3977 CompilerInvocation::StringAllocator SA, 3978 const LangOptions &LangOpts, 3979 const FrontendOptions &FrontendOpts, 3980 const CodeGenOptions &CodeGenOpts) { 3981 PreprocessorOptions *PreprocessorOpts = &Opts; 3982 3983 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 3984 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3985 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3986 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3987 MERGER, EXTRACTOR, TABLE_INDEX) \ 3988 GENERATE_OPTION_WITH_MARSHALLING( \ 3989 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3990 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3991 #include "clang/Driver/Options.inc" 3992 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 3993 3994 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 3995 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 3996 3997 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 3998 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 3999 4000 for (const auto &MP : Opts.MacroPrefixMap) 4001 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 4002 4003 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4004 GenerateArg(Args, OPT_preamble_bytes_EQ, 4005 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4006 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4007 SA); 4008 4009 for (const auto &M : Opts.Macros) { 4010 // Don't generate __CET__ macro definitions. They are implied by the 4011 // -fcf-protection option that is generated elsewhere. 4012 if (M.first == "__CET__=1" && !M.second && 4013 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4014 continue; 4015 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4016 !CodeGenOpts.CFProtectionBranch) 4017 continue; 4018 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4019 CodeGenOpts.CFProtectionBranch) 4020 continue; 4021 4022 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4023 } 4024 4025 for (const auto &I : Opts.Includes) { 4026 // Don't generate OpenCL includes. They are implied by other flags that are 4027 // generated elsewhere. 4028 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4029 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4030 I == "opencl-c.h")) 4031 continue; 4032 4033 GenerateArg(Args, OPT_include, I, SA); 4034 } 4035 4036 for (const auto &CI : Opts.ChainedIncludes) 4037 GenerateArg(Args, OPT_chain_include, CI, SA); 4038 4039 for (const auto &RF : Opts.RemappedFiles) 4040 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4041 4042 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4043 // generated elsewhere. 4044 } 4045 4046 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4047 DiagnosticsEngine &Diags, 4048 frontend::ActionKind Action, 4049 const FrontendOptions &FrontendOpts) { 4050 PreprocessorOptions *PreprocessorOpts = &Opts; 4051 bool Success = true; 4052 4053 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4054 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4055 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4056 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4057 MERGER, EXTRACTOR, TABLE_INDEX) \ 4058 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4059 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4060 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4061 MERGER, TABLE_INDEX) 4062 #include "clang/Driver/Options.inc" 4063 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4064 4065 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4066 Args.hasArg(OPT_pch_through_hdrstop_use); 4067 4068 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4069 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4070 4071 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4072 auto Split = StringRef(A).split('='); 4073 Opts.MacroPrefixMap.insert( 4074 {std::string(Split.first), std::string(Split.second)}); 4075 } 4076 4077 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4078 StringRef Value(A->getValue()); 4079 size_t Comma = Value.find(','); 4080 unsigned Bytes = 0; 4081 unsigned EndOfLine = 0; 4082 4083 if (Comma == StringRef::npos || 4084 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4085 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4086 Diags.Report(diag::err_drv_preamble_format); 4087 else { 4088 Opts.PrecompiledPreambleBytes.first = Bytes; 4089 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4090 } 4091 } 4092 4093 // Add the __CET__ macro if a CFProtection option is set. 4094 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4095 StringRef Name = A->getValue(); 4096 if (Name == "branch") 4097 Opts.addMacroDef("__CET__=1"); 4098 else if (Name == "return") 4099 Opts.addMacroDef("__CET__=2"); 4100 else if (Name == "full") 4101 Opts.addMacroDef("__CET__=3"); 4102 } 4103 4104 // Add macros from the command line. 4105 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4106 if (A->getOption().matches(OPT_D)) 4107 Opts.addMacroDef(A->getValue()); 4108 else 4109 Opts.addMacroUndef(A->getValue()); 4110 } 4111 4112 // Add the ordered list of -includes. 4113 for (const auto *A : Args.filtered(OPT_include)) 4114 Opts.Includes.emplace_back(A->getValue()); 4115 4116 for (const auto *A : Args.filtered(OPT_chain_include)) 4117 Opts.ChainedIncludes.emplace_back(A->getValue()); 4118 4119 for (const auto *A : Args.filtered(OPT_remap_file)) { 4120 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4121 4122 if (Split.second.empty()) { 4123 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4124 continue; 4125 } 4126 4127 Opts.addRemappedFile(Split.first, Split.second); 4128 } 4129 4130 // Always avoid lexing editor placeholders when we're just running the 4131 // preprocessor as we never want to emit the 4132 // "editor placeholder in source file" error in PP only mode. 4133 if (isStrictlyPreprocessorAction(Action)) 4134 Opts.LexEditorPlaceholders = false; 4135 4136 return Success; 4137 } 4138 4139 static void GeneratePreprocessorOutputArgs( 4140 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4141 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4142 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4143 4144 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4145 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4146 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4147 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4148 MERGER, EXTRACTOR, TABLE_INDEX) \ 4149 GENERATE_OPTION_WITH_MARSHALLING( \ 4150 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4151 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4152 #include "clang/Driver/Options.inc" 4153 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4154 4155 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4156 if (Generate_dM) 4157 GenerateArg(Args, OPT_dM, SA); 4158 if (!Generate_dM && Opts.ShowMacros) 4159 GenerateArg(Args, OPT_dD, SA); 4160 } 4161 4162 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4163 ArgList &Args, DiagnosticsEngine &Diags, 4164 frontend::ActionKind Action) { 4165 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4166 unsigned NumErrorsBefore = Diags.getNumErrors(); 4167 bool Success = true; 4168 4169 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4170 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4171 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4172 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4173 MERGER, EXTRACTOR, TABLE_INDEX) \ 4174 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4175 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4176 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4177 MERGER, TABLE_INDEX) 4178 #include "clang/Driver/Options.inc" 4179 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4180 4181 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4182 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4183 4184 return Success && Diags.getNumErrors() == NumErrorsBefore; 4185 } 4186 4187 static void GenerateTargetArgs(const TargetOptions &Opts, 4188 SmallVectorImpl<const char *> &Args, 4189 CompilerInvocation::StringAllocator SA) { 4190 const TargetOptions *TargetOpts = &Opts; 4191 #define TARGET_OPTION_WITH_MARSHALLING( \ 4192 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4193 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4194 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4195 MERGER, EXTRACTOR, TABLE_INDEX) \ 4196 GENERATE_OPTION_WITH_MARSHALLING( \ 4197 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4198 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4199 #include "clang/Driver/Options.inc" 4200 #undef TARGET_OPTION_WITH_MARSHALLING 4201 4202 if (!Opts.SDKVersion.empty()) 4203 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4204 SA); 4205 } 4206 4207 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4208 DiagnosticsEngine &Diags) { 4209 TargetOptions *TargetOpts = &Opts; 4210 unsigned NumErrorsBefore = Diags.getNumErrors(); 4211 bool Success = true; 4212 4213 #define TARGET_OPTION_WITH_MARSHALLING( \ 4214 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4215 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4216 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4217 MERGER, EXTRACTOR, TABLE_INDEX) \ 4218 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4219 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4220 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4221 MERGER, TABLE_INDEX) 4222 #include "clang/Driver/Options.inc" 4223 #undef TARGET_OPTION_WITH_MARSHALLING 4224 4225 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4226 llvm::VersionTuple Version; 4227 if (Version.tryParse(A->getValue())) 4228 Diags.Report(diag::err_drv_invalid_value) 4229 << A->getAsString(Args) << A->getValue(); 4230 else 4231 Opts.SDKVersion = Version; 4232 } 4233 4234 return Success && Diags.getNumErrors() == NumErrorsBefore; 4235 } 4236 4237 bool CompilerInvocation::CreateFromArgsImpl( 4238 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4239 DiagnosticsEngine &Diags, const char *Argv0) { 4240 bool Success = true; 4241 4242 // Parse the arguments. 4243 const OptTable &Opts = getDriverOptTable(); 4244 const unsigned IncludedFlagsBitmask = options::CC1Option; 4245 unsigned MissingArgIndex, MissingArgCount; 4246 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4247 MissingArgCount, IncludedFlagsBitmask); 4248 LangOptions &LangOpts = *Res.getLangOpts(); 4249 4250 // Check for missing argument error. 4251 if (MissingArgCount) { 4252 Diags.Report(diag::err_drv_missing_argument) 4253 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4254 Success = false; 4255 } 4256 4257 // Issue errors on unknown arguments. 4258 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4259 auto ArgString = A->getAsString(Args); 4260 std::string Nearest; 4261 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4262 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4263 else 4264 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4265 << ArgString << Nearest; 4266 Success = false; 4267 } 4268 4269 Success &= ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4270 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4271 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4272 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4273 /*DefaultDiagColor=*/false); 4274 Success &= ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 4275 LangOpts.IsHeaderFile); 4276 // FIXME: We shouldn't have to pass the DashX option around here 4277 InputKind DashX = Res.getFrontendOpts().DashX; 4278 Success &= ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4279 llvm::Triple T(Res.getTargetOpts().Triple); 4280 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4281 Res.getFileSystemOpts().WorkingDir); 4282 if (DashX.getFormat() == InputKind::Precompiled || 4283 DashX.getLanguage() == Language::LLVM_IR) { 4284 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 4285 // PassManager in BackendUtil.cpp. They need to be initializd no matter 4286 // what the input type is. 4287 if (Args.hasArg(OPT_fobjc_arc)) 4288 LangOpts.ObjCAutoRefCount = 1; 4289 // PIClevel and PIELevel are needed during code generation and this should be 4290 // set regardless of the input type. 4291 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 4292 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 4293 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4294 Diags, LangOpts.Sanitize); 4295 } else { 4296 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 4297 // FIXME: Should we really be calling this for an Language::Asm input? 4298 Success &= ParseLangArgs(LangOpts, Args, DashX, T, 4299 Res.getPreprocessorOpts().Includes, Diags); 4300 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4301 LangOpts.ObjCExceptions = 1; 4302 } 4303 4304 if (LangOpts.CUDA) { 4305 // During CUDA device-side compilation, the aux triple is the 4306 // triple used for host compilation. 4307 if (LangOpts.CUDAIsDevice) 4308 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4309 } 4310 4311 // Set the triple of the host for OpenMP device compile. 4312 if (LangOpts.OpenMPIsDevice) 4313 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4314 4315 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4316 Res.getFrontendOpts().OutputFile, LangOpts); 4317 4318 // FIXME: Override value name discarding when asan or msan is used because the 4319 // backend passes depend on the name of the alloca in order to print out 4320 // names. 4321 Res.getCodeGenOpts().DiscardValueNames &= 4322 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4323 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4324 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4325 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4326 4327 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4328 Res.getFrontendOpts().ProgramAction, 4329 Res.getFrontendOpts()); 4330 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4331 Res.getFrontendOpts().ProgramAction); 4332 4333 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4334 Res.getFrontendOpts().ProgramAction, 4335 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4336 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4337 Res.getDependencyOutputOpts().Targets.empty()) { 4338 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4339 Success = false; 4340 } 4341 4342 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4343 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4344 !Res.getLangOpts()->Sanitize.empty()) { 4345 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4346 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4347 } 4348 4349 // Store the command-line for using in the CodeView backend. 4350 Res.getCodeGenOpts().Argv0 = Argv0; 4351 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 4352 4353 Success &= FixupInvocation(Res, Diags, Args, DashX); 4354 4355 return Success; 4356 } 4357 4358 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4359 ArrayRef<const char *> CommandLineArgs, 4360 DiagnosticsEngine &Diags, 4361 const char *Argv0) { 4362 CompilerInvocation DummyInvocation; 4363 4364 return RoundTrip( 4365 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4366 DiagnosticsEngine &Diags, const char *Argv0) { 4367 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4368 }, 4369 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4370 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4371 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4372 } 4373 4374 std::string CompilerInvocation::getModuleHash() const { 4375 // Note: For QoI reasons, the things we use as a hash here should all be 4376 // dumped via the -module-info flag. 4377 using llvm::hash_code; 4378 using llvm::hash_value; 4379 using llvm::hash_combine; 4380 using llvm::hash_combine_range; 4381 4382 // Start the signature with the compiler version. 4383 // FIXME: We'd rather use something more cryptographically sound than 4384 // CityHash, but this will do for now. 4385 hash_code code = hash_value(getClangFullRepositoryVersion()); 4386 4387 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4388 // and getClangFullRepositoryVersion() doesn't include git revision. 4389 code = hash_combine(code, serialization::VERSION_MAJOR, 4390 serialization::VERSION_MINOR); 4391 4392 // Extend the signature with the language options 4393 #define LANGOPT(Name, Bits, Default, Description) \ 4394 code = hash_combine(code, LangOpts->Name); 4395 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4396 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 4397 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4398 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4399 #include "clang/Basic/LangOptions.def" 4400 4401 for (StringRef Feature : LangOpts->ModuleFeatures) 4402 code = hash_combine(code, Feature); 4403 4404 code = hash_combine(code, LangOpts->ObjCRuntime); 4405 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 4406 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 4407 4408 // Extend the signature with the target options. 4409 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 4410 TargetOpts->TuneCPU, TargetOpts->ABI); 4411 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 4412 code = hash_combine(code, FeatureAsWritten); 4413 4414 // Extend the signature with preprocessor options. 4415 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4416 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4417 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 4418 4419 for (const auto &I : getPreprocessorOpts().Macros) { 4420 // If we're supposed to ignore this macro for the purposes of modules, 4421 // don't put it into the hash. 4422 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4423 // Check whether we're ignoring this macro. 4424 StringRef MacroDef = I.first; 4425 if (hsOpts.ModulesIgnoreMacros.count( 4426 llvm::CachedHashString(MacroDef.split('=').first))) 4427 continue; 4428 } 4429 4430 code = hash_combine(code, I.first, I.second); 4431 } 4432 4433 // Extend the signature with the sysroot and other header search options. 4434 code = hash_combine(code, hsOpts.Sysroot, 4435 hsOpts.ModuleFormat, 4436 hsOpts.UseDebugInfo, 4437 hsOpts.UseBuiltinIncludes, 4438 hsOpts.UseStandardSystemIncludes, 4439 hsOpts.UseStandardCXXIncludes, 4440 hsOpts.UseLibcxx, 4441 hsOpts.ModulesValidateDiagnosticOptions); 4442 code = hash_combine(code, hsOpts.ResourceDir); 4443 4444 if (hsOpts.ModulesStrictContextHash) { 4445 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 4446 hsOpts.SystemHeaderPrefixes.end()); 4447 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 4448 hsOpts.UserEntries.end()); 4449 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 4450 hsOpts.UserEntries.size(), UEC); 4451 4452 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4453 #define DIAGOPT(Name, Bits, Default) \ 4454 code = hash_combine(code, diagOpts.Name); 4455 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4456 code = hash_combine(code, diagOpts.get##Name()); 4457 #include "clang/Basic/DiagnosticOptions.def" 4458 #undef DIAGOPT 4459 #undef ENUM_DIAGOPT 4460 } 4461 4462 // Extend the signature with the user build path. 4463 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 4464 4465 // Extend the signature with the module file extensions. 4466 const FrontendOptions &frontendOpts = getFrontendOpts(); 4467 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 4468 code = ext->hashExtension(code); 4469 } 4470 4471 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4472 // affects the debug info in the PCM. 4473 if (getCodeGenOpts().DebugTypeExtRefs) 4474 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 4475 code = hash_combine(code, KeyValue.first, KeyValue.second); 4476 4477 // Extend the signature with the enabled sanitizers, if at least one is 4478 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4479 SanitizerSet SanHash = LangOpts->Sanitize; 4480 SanHash.clear(getPPTransparentSanitizers()); 4481 if (!SanHash.empty()) 4482 code = hash_combine(code, SanHash.Mask); 4483 4484 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 4485 } 4486 4487 void CompilerInvocation::generateCC1CommandLine( 4488 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4489 llvm::Triple T(TargetOpts->Triple); 4490 4491 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4492 GenerateMigratorArgs(MigratorOpts, Args, SA); 4493 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4494 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4495 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4496 GenerateTargetArgs(*TargetOpts, Args, SA); 4497 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4498 4499 InputKind DashX = FrontendOpts.DashX; 4500 if (DashX.getFormat() == InputKind::Precompiled || 4501 DashX.getLanguage() == Language::LLVM_IR) { 4502 if (LangOpts->ObjCAutoRefCount) 4503 GenerateArg(Args, OPT_fobjc_arc, SA); 4504 if (LangOpts->PICLevel != 0) 4505 GenerateArg(Args, OPT_pic_level, Twine(LangOpts->PICLevel), SA); 4506 if (LangOpts->PIE) 4507 GenerateArg(Args, OPT_pic_is_pie, SA); 4508 for (StringRef Sanitizer : serializeSanitizerKinds(LangOpts->Sanitize)) 4509 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 4510 } else { 4511 // FIXME: Move this whole condition into GenerateLangArgs. (And do the same 4512 // for ParseLangArgs). 4513 GenerateLangArgs(*LangOpts, Args, SA, T); 4514 } 4515 4516 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4517 &*LangOpts); 4518 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4519 CodeGenOpts); 4520 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4521 FrontendOpts.ProgramAction); 4522 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4523 } 4524 4525 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4526 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4527 DiagnosticsEngine &Diags) { 4528 return createVFSFromCompilerInvocation(CI, Diags, 4529 llvm::vfs::getRealFileSystem()); 4530 } 4531 4532 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4533 clang::createVFSFromCompilerInvocation( 4534 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4535 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4536 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4537 return BaseFS; 4538 4539 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4540 // earlier vfs files are on the bottom 4541 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4542 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4543 Result->getBufferForFile(File); 4544 if (!Buffer) { 4545 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4546 continue; 4547 } 4548 4549 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4550 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4551 /*DiagContext*/ nullptr, Result); 4552 if (!FS) { 4553 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4554 continue; 4555 } 4556 4557 Result = FS; 4558 } 4559 return Result; 4560 } 4561