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 *> 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 *> 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 ParseAnalyzerArgsImpl(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 bool ParseAnalyzerArgs(CompilerInvocation &Res, AnalyzerOptions &Opts, 1020 ArgList &Args, DiagnosticsEngine &Diags) { 1021 return ParseAnalyzerArgsImpl(*Res.getAnalyzerOpts(), Args, Diags); 1022 } 1023 1024 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1025 StringRef OptionName, StringRef DefaultVal) { 1026 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1027 } 1028 1029 static void initOption(AnalyzerOptions::ConfigTable &Config, 1030 DiagnosticsEngine *Diags, 1031 StringRef &OptionField, StringRef Name, 1032 StringRef DefaultVal) { 1033 // String options may be known to invalid (e.g. if the expected string is a 1034 // file name, but the file does not exist), those will have to be checked in 1035 // parseConfigs. 1036 OptionField = getStringOption(Config, Name, DefaultVal); 1037 } 1038 1039 static void initOption(AnalyzerOptions::ConfigTable &Config, 1040 DiagnosticsEngine *Diags, 1041 bool &OptionField, StringRef Name, bool DefaultVal) { 1042 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1043 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1044 .Case("true", true) 1045 .Case("false", false) 1046 .Default(None); 1047 1048 if (!PossiblyInvalidVal) { 1049 if (Diags) 1050 Diags->Report(diag::err_analyzer_config_invalid_input) 1051 << Name << "a boolean"; 1052 else 1053 OptionField = DefaultVal; 1054 } else 1055 OptionField = PossiblyInvalidVal.getValue(); 1056 } 1057 1058 static void initOption(AnalyzerOptions::ConfigTable &Config, 1059 DiagnosticsEngine *Diags, 1060 unsigned &OptionField, StringRef Name, 1061 unsigned DefaultVal) { 1062 1063 OptionField = DefaultVal; 1064 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1065 .getAsInteger(0, OptionField); 1066 if (Diags && HasFailed) 1067 Diags->Report(diag::err_analyzer_config_invalid_input) 1068 << Name << "an unsigned"; 1069 } 1070 1071 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1072 DiagnosticsEngine *Diags) { 1073 // TODO: There's no need to store the entire configtable, it'd be plenty 1074 // enough tostore checker options. 1075 1076 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1077 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1078 1079 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1080 SHALLOW_VAL, DEEP_VAL) \ 1081 switch (AnOpts.getUserMode()) { \ 1082 case UMK_Shallow: \ 1083 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 1084 break; \ 1085 case UMK_Deep: \ 1086 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 1087 break; \ 1088 } \ 1089 1090 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1091 #undef ANALYZER_OPTION 1092 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 1093 1094 // At this point, AnalyzerOptions is configured. Let's validate some options. 1095 1096 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1097 // The current approach only validates the registered checkers which does not 1098 // contain the runtime enabled checkers and optimally we would validate both. 1099 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1100 std::vector<StringRef> Checkers = 1101 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1102 std::vector<StringRef> Packages = 1103 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1104 1105 SmallVector<StringRef, 16> CheckersAndPackages; 1106 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1107 1108 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1109 if (Diags) { 1110 bool IsChecker = CheckerOrPackage.contains('.'); 1111 bool IsValidName = 1112 IsChecker 1113 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 1114 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 1115 1116 if (!IsValidName) 1117 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1118 << CheckerOrPackage; 1119 } 1120 1121 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1122 } 1123 } 1124 1125 if (!Diags) 1126 return; 1127 1128 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1129 Diags->Report(diag::err_analyzer_config_invalid_input) 1130 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1131 1132 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1133 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1134 << "a filename"; 1135 1136 if (!AnOpts.ModelPath.empty() && 1137 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1138 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1139 << "a filename"; 1140 } 1141 1142 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1143 static void 1144 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1145 CompilerInvocation::StringAllocator SA, 1146 OptSpecifier OptEQ, StringRef Name, 1147 const CodeGenOptions::OptRemark &Remark) { 1148 if (Remark.hasValidPattern()) { 1149 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1150 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1151 GenerateArg(Args, OPT_R_Joined, Name, SA); 1152 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1153 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1154 } 1155 }; 1156 1157 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1158 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1159 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1160 static CodeGenOptions::OptRemark 1161 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1162 OptSpecifier OptEQ, StringRef Name) { 1163 CodeGenOptions::OptRemark Result; 1164 1165 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A) { 1166 Result.Pattern = A->getValue(); 1167 1168 std::string RegexError; 1169 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1170 if (!Result.Regex->isValid(RegexError)) { 1171 Diags.Report(diag::err_drv_optimization_remark_pattern) 1172 << RegexError << A->getAsString(Args); 1173 return false; 1174 } 1175 1176 return true; 1177 }; 1178 1179 for (Arg *A : Args) { 1180 if (A->getOption().matches(OPT_R_Joined)) { 1181 StringRef Value = A->getValue(); 1182 1183 if (Value == Name) 1184 Result.Kind = CodeGenOptions::RK_Enabled; 1185 else if (Value == "everything") 1186 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1187 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1188 Result.Kind = CodeGenOptions::RK_Disabled; 1189 else if (Value == "no-everything") 1190 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1191 } else if (A->getOption().matches(OptEQ)) { 1192 Result.Kind = CodeGenOptions::RK_WithPattern; 1193 if (!InitializeResultPattern(A)) 1194 return CodeGenOptions::OptRemark(); 1195 } 1196 } 1197 1198 if (Result.Kind == CodeGenOptions::RK_Disabled || 1199 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1200 Result.Pattern = ""; 1201 Result.Regex = nullptr; 1202 } 1203 1204 return Result; 1205 } 1206 1207 static bool parseDiagnosticLevelMask(StringRef FlagName, 1208 const std::vector<std::string> &Levels, 1209 DiagnosticsEngine &Diags, 1210 DiagnosticLevelMask &M) { 1211 bool Success = true; 1212 for (const auto &Level : Levels) { 1213 DiagnosticLevelMask const PM = 1214 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1215 .Case("note", DiagnosticLevelMask::Note) 1216 .Case("remark", DiagnosticLevelMask::Remark) 1217 .Case("warning", DiagnosticLevelMask::Warning) 1218 .Case("error", DiagnosticLevelMask::Error) 1219 .Default(DiagnosticLevelMask::None); 1220 if (PM == DiagnosticLevelMask::None) { 1221 Success = false; 1222 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1223 } 1224 M = M | PM; 1225 } 1226 return Success; 1227 } 1228 1229 static void parseSanitizerKinds(StringRef FlagName, 1230 const std::vector<std::string> &Sanitizers, 1231 DiagnosticsEngine &Diags, SanitizerSet &S) { 1232 for (const auto &Sanitizer : Sanitizers) { 1233 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1234 if (K == SanitizerMask()) 1235 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1236 else 1237 S.set(K, true); 1238 } 1239 } 1240 1241 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1242 SmallVector<StringRef, 4> Values; 1243 serializeSanitizerSet(S, Values); 1244 return Values; 1245 } 1246 1247 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1248 ArgList &Args, DiagnosticsEngine &D, 1249 XRayInstrSet &S) { 1250 llvm::SmallVector<StringRef, 2> BundleParts; 1251 llvm::SplitString(Bundle, BundleParts, ","); 1252 for (const auto &B : BundleParts) { 1253 auto Mask = parseXRayInstrValue(B); 1254 if (Mask == XRayInstrKind::None) 1255 if (B != "none") 1256 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1257 else 1258 S.Mask = Mask; 1259 else if (Mask == XRayInstrKind::All) 1260 S.Mask = Mask; 1261 else 1262 S.set(Mask, true); 1263 } 1264 } 1265 1266 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1267 llvm::SmallVector<StringRef, 2> BundleParts; 1268 serializeXRayInstrValue(S, BundleParts); 1269 std::string Buffer; 1270 llvm::raw_string_ostream OS(Buffer); 1271 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1272 return OS.str(); 1273 } 1274 1275 // Set the profile kind using fprofile-instrument-use-path. 1276 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1277 const Twine &ProfileName) { 1278 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1279 // In error, return silently and let Clang PGOUse report the error message. 1280 if (auto E = ReaderOrErr.takeError()) { 1281 llvm::consumeError(std::move(E)); 1282 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1283 return; 1284 } 1285 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1286 std::move(ReaderOrErr.get()); 1287 if (PGOReader->isIRLevelProfile()) { 1288 if (PGOReader->hasCSIRLevelProfile()) 1289 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1290 else 1291 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1292 } else 1293 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1294 } 1295 1296 void CompilerInvocation::GenerateCodeGenArgs( 1297 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1298 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1299 const LangOptions *LangOpts) { 1300 const CodeGenOptions &CodeGenOpts = Opts; 1301 1302 if (Opts.OptimizationLevel == 0) 1303 GenerateArg(Args, OPT_O0, SA); 1304 else 1305 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1306 1307 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1308 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1309 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1310 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1311 MERGER, EXTRACTOR, TABLE_INDEX) \ 1312 GENERATE_OPTION_WITH_MARSHALLING( \ 1313 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1314 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1315 #include "clang/Driver/Options.inc" 1316 #undef CODEGEN_OPTION_WITH_MARSHALLING 1317 1318 if (Opts.OptimizationLevel > 0) { 1319 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1320 GenerateArg(Args, OPT_finline_functions, SA); 1321 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1322 GenerateArg(Args, OPT_finline_hint_functions, SA); 1323 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1324 GenerateArg(Args, OPT_fno_inline, SA); 1325 } 1326 1327 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1328 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1329 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1330 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1331 1332 Optional<StringRef> DebugInfoVal; 1333 switch (Opts.DebugInfo) { 1334 case codegenoptions::DebugLineTablesOnly: 1335 DebugInfoVal = "line-tables-only"; 1336 break; 1337 case codegenoptions::DebugDirectivesOnly: 1338 DebugInfoVal = "line-directives-only"; 1339 break; 1340 case codegenoptions::DebugInfoConstructor: 1341 DebugInfoVal = "constructor"; 1342 break; 1343 case codegenoptions::LimitedDebugInfo: 1344 DebugInfoVal = "limited"; 1345 break; 1346 case codegenoptions::FullDebugInfo: 1347 DebugInfoVal = "standalone"; 1348 break; 1349 case codegenoptions::UnusedTypeInfo: 1350 DebugInfoVal = "unused-types"; 1351 break; 1352 case codegenoptions::NoDebugInfo: // default value 1353 DebugInfoVal = None; 1354 break; 1355 case codegenoptions::LocTrackingOnly: // implied value 1356 DebugInfoVal = None; 1357 break; 1358 } 1359 if (DebugInfoVal) 1360 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1361 1362 if (Opts.DebugInfo == codegenoptions::DebugInfoConstructor) 1363 GenerateArg(Args, OPT_fuse_ctor_homing, SA); 1364 1365 for (const auto &Prefix : Opts.DebugPrefixMap) 1366 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1367 Prefix.first + "=" + Prefix.second, SA); 1368 1369 for (const auto &Prefix : Opts.ProfilePrefixMap) 1370 GenerateArg(Args, OPT_fprofile_prefix_map_EQ, 1371 Prefix.first + "=" + Prefix.second, SA); 1372 1373 if (Opts.NewStructPathTBAA) 1374 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1375 1376 if (Opts.OptimizeSize == 1) 1377 GenerateArg(Args, OPT_O, "s", SA); 1378 else if (Opts.OptimizeSize == 2) 1379 GenerateArg(Args, OPT_O, "z", SA); 1380 1381 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1382 // -ffreestanding. We'll consider that when generating them. 1383 1384 // NoBuiltinFuncs are generated by LangOptions. 1385 1386 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1387 GenerateArg(Args, OPT_funroll_loops, SA); 1388 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1389 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1390 1391 if (!Opts.BinutilsVersion.empty()) 1392 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1393 1394 if (Opts.DebugNameTable == 1395 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1396 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1397 else if (Opts.DebugNameTable == 1398 static_cast<unsigned>( 1399 llvm::DICompileUnit::DebugNameTableKind::Default)) 1400 GenerateArg(Args, OPT_gpubnames, SA); 1401 1402 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1403 // it or PGOUseInstrumentor. 1404 1405 if (Opts.TimePasses) { 1406 if (Opts.TimePassesPerRun) 1407 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1408 else 1409 GenerateArg(Args, OPT_ftime_report, SA); 1410 } 1411 1412 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1413 GenerateArg(Args, OPT_flto, SA); 1414 1415 if (Opts.PrepareForThinLTO) 1416 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1417 1418 if (!Opts.ThinLTOIndexFile.empty()) 1419 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1420 1421 if (Opts.SaveTempsFilePrefix == OutputFile) 1422 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1423 1424 StringRef MemProfileBasename("memprof.profraw"); 1425 if (!Opts.MemoryProfileOutput.empty()) { 1426 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1427 GenerateArg(Args, OPT_fmemory_profile, SA); 1428 } else { 1429 size_t ArgLength = 1430 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1431 GenerateArg(Args, OPT_fmemory_profile_EQ, 1432 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1433 } 1434 } 1435 1436 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1437 GenerateArg(Args, OPT_coverage_version_EQ, 1438 StringRef(Opts.CoverageVersion, 4), SA); 1439 1440 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1441 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1442 // won't be generated.) 1443 1444 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1445 std::string InstrBundle = 1446 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1447 if (!InstrBundle.empty()) 1448 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1449 } 1450 1451 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1452 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1453 else if (Opts.CFProtectionReturn) 1454 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1455 else if (Opts.CFProtectionBranch) 1456 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1457 1458 for (const auto &F : Opts.LinkBitcodeFiles) { 1459 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1460 F.PropagateAttrs && F.Internalize; 1461 GenerateArg(Args, 1462 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1463 F.Filename, SA); 1464 } 1465 1466 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1467 // That would make it easy to generate the option only **once** if it was 1468 // explicitly set to non-default value. 1469 if (Opts.ExplicitEmulatedTLS) { 1470 GenerateArg( 1471 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1472 } 1473 1474 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) { 1475 std::string Buffer; 1476 llvm::raw_string_ostream OS(Buffer); 1477 Opts.FPDenormalMode.print(OS); 1478 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, OS.str(), SA); 1479 } 1480 1481 if (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE()) { 1482 std::string Buffer; 1483 llvm::raw_string_ostream OS(Buffer); 1484 Opts.FP32DenormalMode.print(OS); 1485 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, OS.str(), SA); 1486 } 1487 1488 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1489 OptSpecifier Opt = 1490 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1491 GenerateArg(Args, Opt, SA); 1492 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1493 OptSpecifier Opt = 1494 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1495 GenerateArg(Args, Opt, SA); 1496 } 1497 1498 if (Opts.IgnoreXCOFFVisibility) 1499 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 1500 1501 if (Opts.EnableAIXExtendedAltivecABI) 1502 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1503 1504 if (!Opts.OptRecordPasses.empty()) 1505 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1506 1507 if (!Opts.OptRecordFormat.empty()) 1508 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1509 1510 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1511 Opts.OptimizationRemark); 1512 1513 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1514 Opts.OptimizationRemarkMissed); 1515 1516 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1517 Opts.OptimizationRemarkAnalysis); 1518 1519 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1520 Opts.DiagnosticsHotnessThreshold 1521 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1522 : "auto", 1523 SA); 1524 1525 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1526 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1527 1528 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1529 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1530 1531 if (!Opts.EmitVersionIdentMetadata) 1532 GenerateArg(Args, OPT_Qn, SA); 1533 1534 switch (Opts.FiniteLoops) { 1535 case CodeGenOptions::FiniteLoopsKind::Language: 1536 break; 1537 case CodeGenOptions::FiniteLoopsKind::Always: 1538 GenerateArg(Args, OPT_ffinite_loops, SA); 1539 break; 1540 case CodeGenOptions::FiniteLoopsKind::Never: 1541 GenerateArg(Args, OPT_fno_finite_loops, SA); 1542 break; 1543 } 1544 } 1545 1546 bool CompilerInvocation::ParseCodeGenArgsImpl(CodeGenOptions &Opts, 1547 ArgList &Args, InputKind IK, 1548 DiagnosticsEngine &Diags, 1549 const llvm::Triple &T, 1550 const std::string &OutputFile, 1551 const LangOptions &LangOptsRef) { 1552 unsigned NumErrorsBefore = Diags.getNumErrors(); 1553 1554 bool Success = true; 1555 1556 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1557 // TODO: This could be done in Driver 1558 unsigned MaxOptLevel = 3; 1559 if (OptimizationLevel > MaxOptLevel) { 1560 // If the optimization level is not supported, fall back on the default 1561 // optimization 1562 Diags.Report(diag::warn_drv_optimization_value) 1563 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1564 OptimizationLevel = MaxOptLevel; 1565 } 1566 Opts.OptimizationLevel = OptimizationLevel; 1567 1568 // The key paths of codegen options defined in Options.td start with 1569 // "CodeGenOpts.". Let's provide the expected variable name and type. 1570 CodeGenOptions &CodeGenOpts = Opts; 1571 // Some codegen options depend on language options. Let's provide the expected 1572 // variable name and type. 1573 const LangOptions *LangOpts = &LangOptsRef; 1574 1575 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1576 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1577 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1578 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1579 MERGER, EXTRACTOR, TABLE_INDEX) \ 1580 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 1581 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1582 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 1583 MERGER, TABLE_INDEX) 1584 #include "clang/Driver/Options.inc" 1585 #undef CODEGEN_OPTION_WITH_MARSHALLING 1586 1587 // At O0 we want to fully disable inlining outside of cases marked with 1588 // 'alwaysinline' that are required for correctness. 1589 Opts.setInlining((Opts.OptimizationLevel == 0) 1590 ? CodeGenOptions::OnlyAlwaysInlining 1591 : CodeGenOptions::NormalInlining); 1592 // Explicit inlining flags can disable some or all inlining even at 1593 // optimization levels above zero. 1594 if (Arg *InlineArg = Args.getLastArg( 1595 options::OPT_finline_functions, options::OPT_finline_hint_functions, 1596 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 1597 if (Opts.OptimizationLevel > 0) { 1598 const Option &InlineOpt = InlineArg->getOption(); 1599 if (InlineOpt.matches(options::OPT_finline_functions)) 1600 Opts.setInlining(CodeGenOptions::NormalInlining); 1601 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 1602 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1603 else 1604 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1605 } 1606 } 1607 1608 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1609 // -fdirect-access-external-data. 1610 Opts.DirectAccessExternalData = 1611 Args.hasArg(OPT_fdirect_access_external_data) || 1612 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1613 LangOpts->PICLevel == 0); 1614 1615 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1616 unsigned Val = 1617 llvm::StringSwitch<unsigned>(A->getValue()) 1618 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1619 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1620 .Case("constructor", codegenoptions::DebugInfoConstructor) 1621 .Case("limited", codegenoptions::LimitedDebugInfo) 1622 .Case("standalone", codegenoptions::FullDebugInfo) 1623 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1624 .Default(~0U); 1625 if (Val == ~0U) 1626 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1627 << A->getValue(); 1628 else 1629 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1630 } 1631 1632 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1633 // constructor homing. 1634 if (Args.getLastArg(OPT_fuse_ctor_homing)) 1635 if (Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1636 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1637 1638 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1639 auto Split = StringRef(Arg).split('='); 1640 Opts.DebugPrefixMap.insert( 1641 {std::string(Split.first), std::string(Split.second)}); 1642 } 1643 1644 for (const auto &Arg : Args.getAllArgValues(OPT_fprofile_prefix_map_EQ)) { 1645 auto Split = StringRef(Arg).split('='); 1646 Opts.ProfilePrefixMap.insert( 1647 {std::string(Split.first), std::string(Split.second)}); 1648 } 1649 1650 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1651 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1652 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1653 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1654 1655 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1656 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1657 Opts.EmitCallSiteInfo = true; 1658 1659 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1660 Args.hasArg(OPT_new_struct_path_tbaa); 1661 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1662 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1663 if (Opts.SimplifyLibCalls) 1664 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1665 Opts.UnrollLoops = 1666 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1667 (Opts.OptimizationLevel > 1)); 1668 Opts.BinutilsVersion = 1669 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1670 1671 Opts.DebugNameTable = static_cast<unsigned>( 1672 Args.hasArg(OPT_ggnu_pubnames) 1673 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1674 : Args.hasArg(OPT_gpubnames) 1675 ? llvm::DICompileUnit::DebugNameTableKind::Default 1676 : llvm::DICompileUnit::DebugNameTableKind::None); 1677 1678 if (!Opts.ProfileInstrumentUsePath.empty()) 1679 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1680 1681 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1682 Opts.TimePasses = true; 1683 1684 // -ftime-report= is only for new pass manager. 1685 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1686 if (Opts.LegacyPassManager) 1687 Diags.Report(diag::err_drv_argument_only_allowed_with) 1688 << A->getAsString(Args) << "-fno-legacy-pass-manager"; 1689 1690 StringRef Val = A->getValue(); 1691 if (Val == "per-pass") 1692 Opts.TimePassesPerRun = false; 1693 else if (Val == "per-pass-run") 1694 Opts.TimePassesPerRun = true; 1695 else 1696 Diags.Report(diag::err_drv_invalid_value) 1697 << A->getAsString(Args) << A->getValue(); 1698 } 1699 } 1700 1701 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 1702 Opts.PrepareForThinLTO = false; 1703 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1704 StringRef S = A->getValue(); 1705 if (S == "thin") 1706 Opts.PrepareForThinLTO = true; 1707 else if (S != "full") 1708 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1709 } 1710 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1711 if (IK.getLanguage() != Language::LLVM_IR) 1712 Diags.Report(diag::err_drv_argument_only_allowed_with) 1713 << A->getAsString(Args) << "-x ir"; 1714 Opts.ThinLTOIndexFile = 1715 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1716 } 1717 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1718 Opts.SaveTempsFilePrefix = 1719 llvm::StringSwitch<std::string>(A->getValue()) 1720 .Case("obj", OutputFile) 1721 .Default(llvm::sys::path::filename(OutputFile).str()); 1722 1723 // The memory profile runtime appends the pid to make this name more unique. 1724 const char *MemProfileBasename = "memprof.profraw"; 1725 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1726 SmallString<128> Path( 1727 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1728 llvm::sys::path::append(Path, MemProfileBasename); 1729 Opts.MemoryProfileOutput = std::string(Path); 1730 } else if (Args.hasArg(OPT_fmemory_profile)) 1731 Opts.MemoryProfileOutput = MemProfileBasename; 1732 1733 memcpy(Opts.CoverageVersion, "408*", 4); 1734 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1735 if (Args.hasArg(OPT_coverage_version_EQ)) { 1736 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1737 if (CoverageVersion.size() != 4) { 1738 Diags.Report(diag::err_drv_invalid_value) 1739 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1740 << CoverageVersion; 1741 } else { 1742 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1743 } 1744 } 1745 } 1746 // FIXME: For backend options that are not yet recorded as function 1747 // attributes in the IR, keep track of them so we can embed them in a 1748 // separate data section and use them when building the bitcode. 1749 for (const auto &A : Args) { 1750 // Do not encode output and input. 1751 if (A->getOption().getID() == options::OPT_o || 1752 A->getOption().getID() == options::OPT_INPUT || 1753 A->getOption().getID() == options::OPT_x || 1754 A->getOption().getID() == options::OPT_fembed_bitcode || 1755 A->getOption().matches(options::OPT_W_Group)) 1756 continue; 1757 ArgStringList ASL; 1758 A->render(Args, ASL); 1759 for (const auto &arg : ASL) { 1760 StringRef ArgStr(arg); 1761 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1762 // using \00 to separate each commandline options. 1763 Opts.CmdArgs.push_back('\0'); 1764 } 1765 } 1766 1767 auto XRayInstrBundles = 1768 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1769 if (XRayInstrBundles.empty()) 1770 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1771 else 1772 for (const auto &A : XRayInstrBundles) 1773 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1774 Diags, Opts.XRayInstrumentationBundle); 1775 1776 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1777 StringRef Name = A->getValue(); 1778 if (Name == "full") { 1779 Opts.CFProtectionReturn = 1; 1780 Opts.CFProtectionBranch = 1; 1781 } else if (Name == "return") 1782 Opts.CFProtectionReturn = 1; 1783 else if (Name == "branch") 1784 Opts.CFProtectionBranch = 1; 1785 else if (Name != "none") { 1786 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1787 Success = false; 1788 } 1789 } 1790 1791 for (auto *A : 1792 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1793 CodeGenOptions::BitcodeFileToLink F; 1794 F.Filename = A->getValue(); 1795 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1796 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1797 // When linking CUDA bitcode, propagate function attributes so that 1798 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1799 F.PropagateAttrs = true; 1800 F.Internalize = true; 1801 } 1802 Opts.LinkBitcodeFiles.push_back(F); 1803 } 1804 1805 if (Args.getLastArg(OPT_femulated_tls) || 1806 Args.getLastArg(OPT_fno_emulated_tls)) { 1807 Opts.ExplicitEmulatedTLS = true; 1808 } 1809 1810 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1811 StringRef Val = A->getValue(); 1812 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1813 if (!Opts.FPDenormalMode.isValid()) 1814 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1815 } 1816 1817 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1818 StringRef Val = A->getValue(); 1819 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1820 if (!Opts.FP32DenormalMode.isValid()) 1821 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1822 } 1823 1824 // X86_32 has -fppc-struct-return and -freg-struct-return. 1825 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1826 if (Arg *A = 1827 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1828 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1829 // TODO: We might want to consider enabling these options on AIX in the 1830 // future. 1831 if (T.isOSAIX()) 1832 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1833 << A->getSpelling() << T.str(); 1834 1835 const Option &O = A->getOption(); 1836 if (O.matches(OPT_fpcc_struct_return) || 1837 O.matches(OPT_maix_struct_return)) { 1838 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1839 } else { 1840 assert(O.matches(OPT_freg_struct_return) || 1841 O.matches(OPT_msvr4_struct_return)); 1842 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1843 } 1844 } 1845 1846 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 1847 !Args.hasArg(OPT_fvisibility))) 1848 Opts.IgnoreXCOFFVisibility = 1; 1849 1850 if (Arg *A = 1851 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1852 if (!T.isOSAIX()) 1853 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1854 << A->getSpelling() << T.str(); 1855 1856 const Option &O = A->getOption(); 1857 if (O.matches(OPT_mabi_EQ_vec_default)) 1858 Diags.Report(diag::err_aix_default_altivec_abi) 1859 << A->getSpelling() << T.str(); 1860 else { 1861 assert(O.matches(OPT_mabi_EQ_vec_extabi)); 1862 Opts.EnableAIXExtendedAltivecABI = 1; 1863 } 1864 } 1865 1866 bool NeedLocTracking = false; 1867 1868 if (!Opts.OptRecordFile.empty()) 1869 NeedLocTracking = true; 1870 1871 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1872 Opts.OptRecordPasses = A->getValue(); 1873 NeedLocTracking = true; 1874 } 1875 1876 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1877 Opts.OptRecordFormat = A->getValue(); 1878 NeedLocTracking = true; 1879 } 1880 1881 Opts.OptimizationRemark = 1882 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1883 1884 Opts.OptimizationRemarkMissed = 1885 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1886 1887 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1888 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1889 1890 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1891 Opts.OptimizationRemarkMissed.hasValidPattern() || 1892 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1893 1894 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1895 bool UsingProfile = UsingSampleProfile || 1896 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1897 1898 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1899 // An IR file will contain PGO as metadata 1900 IK.getLanguage() != Language::LLVM_IR) 1901 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1902 << "-fdiagnostics-show-hotness"; 1903 1904 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1905 if (auto *arg = 1906 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1907 auto ResultOrErr = 1908 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1909 1910 if (!ResultOrErr) { 1911 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1912 << "-fdiagnostics-hotness-threshold="; 1913 } else { 1914 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1915 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1916 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1917 !UsingProfile) 1918 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1919 << "-fdiagnostics-hotness-threshold="; 1920 } 1921 } 1922 1923 // If the user requested to use a sample profile for PGO, then the 1924 // backend will need to track source location information so the profile 1925 // can be incorporated into the IR. 1926 if (UsingSampleProfile) 1927 NeedLocTracking = true; 1928 1929 // If the user requested a flag that requires source locations available in 1930 // the backend, make sure that the backend tracks source location information. 1931 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1932 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1933 1934 // Parse -fsanitize-recover= arguments. 1935 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1936 parseSanitizerKinds("-fsanitize-recover=", 1937 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1938 Opts.SanitizeRecover); 1939 parseSanitizerKinds("-fsanitize-trap=", 1940 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1941 Opts.SanitizeTrap); 1942 1943 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1944 1945 if (Args.hasArg(options::OPT_ffinite_loops)) 1946 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 1947 else if (Args.hasArg(options::OPT_fno_finite_loops)) 1948 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 1949 1950 return Success && Diags.getNumErrors() == NumErrorsBefore; 1951 } 1952 1953 bool CompilerInvocation::ParseCodeGenArgs( 1954 CompilerInvocation &Res, CodeGenOptions &Opts, ArgList &Args, InputKind IK, 1955 DiagnosticsEngine &Diags, const llvm::Triple &T, 1956 const std::string &OutputFile, const LangOptions &LangOptsRef) { 1957 return ParseCodeGenArgsImpl(Res.getCodeGenOpts(), Args, IK, Diags, T, 1958 OutputFile, LangOptsRef); 1959 } 1960 1961 static void 1962 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 1963 SmallVectorImpl<const char *> &Args, 1964 CompilerInvocation::StringAllocator SA) { 1965 const DependencyOutputOptions &DependencyOutputOpts = Opts; 1966 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1967 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1968 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1969 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1970 MERGER, EXTRACTOR, TABLE_INDEX) \ 1971 GENERATE_OPTION_WITH_MARSHALLING( \ 1972 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1973 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1974 #include "clang/Driver/Options.inc" 1975 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 1976 1977 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 1978 GenerateArg(Args, OPT_show_includes, SA); 1979 1980 for (const auto &Dep : Opts.ExtraDeps) { 1981 switch (Dep.second) { 1982 case EDK_SanitizeBlacklist: 1983 // Sanitizer blacklist arguments are generated from LanguageOptions. 1984 continue; 1985 case EDK_ModuleFile: 1986 // Module file arguments are generated from FrontendOptions and 1987 // HeaderSearchOptions. 1988 continue; 1989 case EDK_ProfileList: 1990 // Profile list arguments are generated from LanguageOptions via the 1991 // marshalling infrastructure. 1992 continue; 1993 case EDK_DepFileEntry: 1994 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 1995 break; 1996 } 1997 } 1998 } 1999 2000 static bool ParseDependencyOutputArgsImpl( 2001 DependencyOutputOptions &Opts, ArgList &Args, 2002 DiagnosticsEngine &Diags, 2003 frontend::ActionKind Action, bool ShowLineMarkers) { 2004 unsigned NumErrorsBefore = Diags.getNumErrors(); 2005 bool Success = true; 2006 2007 DependencyOutputOptions &DependencyOutputOpts = Opts; 2008 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2009 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2010 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2011 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2012 MERGER, EXTRACTOR, TABLE_INDEX) \ 2013 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2014 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2015 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2016 MERGER, TABLE_INDEX) 2017 #include "clang/Driver/Options.inc" 2018 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2019 2020 if (Args.hasArg(OPT_show_includes)) { 2021 // Writing both /showIncludes and preprocessor output to stdout 2022 // would produce interleaved output, so use stderr for /showIncludes. 2023 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2024 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2025 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2026 else 2027 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2028 } else { 2029 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2030 } 2031 2032 // Add sanitizer blacklists as extra dependencies. 2033 // They won't be discovered by the regular preprocessor, so 2034 // we let make / ninja to know about this implicit dependency. 2035 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 2036 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 2037 StringRef Val = A->getValue(); 2038 if (Val.find('=') == StringRef::npos) 2039 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeBlacklist); 2040 } 2041 if (Opts.IncludeSystemHeaders) { 2042 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 2043 StringRef Val = A->getValue(); 2044 if (Val.find('=') == StringRef::npos) 2045 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeBlacklist); 2046 } 2047 } 2048 } 2049 2050 // -fprofile-list= dependencies. 2051 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2052 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2053 2054 // Propagate the extra dependencies. 2055 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2056 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2057 2058 // Only the -fmodule-file=<file> form. 2059 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2060 StringRef Val = A->getValue(); 2061 if (Val.find('=') == StringRef::npos) 2062 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2063 } 2064 2065 return Success && Diags.getNumErrors() == NumErrorsBefore; 2066 } 2067 2068 static bool ParseDependencyOutputArgs(CompilerInvocation &Res, 2069 DependencyOutputOptions &Opts, 2070 ArgList &Args, DiagnosticsEngine &Diags, 2071 frontend::ActionKind Action, 2072 bool ShowLineMarkers) { 2073 return ParseDependencyOutputArgsImpl(Res.getDependencyOutputOpts(), Args, 2074 Diags, Action, ShowLineMarkers); 2075 } 2076 2077 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2078 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2079 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2080 // Support both clang's -f[no-]color-diagnostics and gcc's 2081 // -f[no-]diagnostics-colors[=never|always|auto]. 2082 enum { 2083 Colors_On, 2084 Colors_Off, 2085 Colors_Auto 2086 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2087 for (auto *A : Args) { 2088 const Option &O = A->getOption(); 2089 if (O.matches(options::OPT_fcolor_diagnostics) || 2090 O.matches(options::OPT_fdiagnostics_color)) { 2091 ShowColors = Colors_On; 2092 } else if (O.matches(options::OPT_fno_color_diagnostics) || 2093 O.matches(options::OPT_fno_diagnostics_color)) { 2094 ShowColors = Colors_Off; 2095 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2096 StringRef Value(A->getValue()); 2097 if (Value == "always") 2098 ShowColors = Colors_On; 2099 else if (Value == "never") 2100 ShowColors = Colors_Off; 2101 else if (Value == "auto") 2102 ShowColors = Colors_Auto; 2103 } 2104 } 2105 return ShowColors == Colors_On || 2106 (ShowColors == Colors_Auto && 2107 llvm::sys::Process::StandardErrHasColors()); 2108 } 2109 2110 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2111 DiagnosticsEngine &Diags) { 2112 bool Success = true; 2113 for (const auto &Prefix : VerifyPrefixes) { 2114 // Every prefix must start with a letter and contain only alphanumeric 2115 // characters, hyphens, and underscores. 2116 auto BadChar = llvm::find_if(Prefix, [](char C) { 2117 return !isAlphanumeric(C) && C != '-' && C != '_'; 2118 }); 2119 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2120 Success = false; 2121 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2122 Diags.Report(diag::note_drv_verify_prefix_spelling); 2123 } 2124 } 2125 return Success; 2126 } 2127 2128 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2129 SmallVectorImpl<const char *> &Args, 2130 CompilerInvocation::StringAllocator SA) { 2131 const FileSystemOptions &FileSystemOpts = Opts; 2132 2133 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2134 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2135 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2136 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2137 MERGER, EXTRACTOR, TABLE_INDEX) \ 2138 GENERATE_OPTION_WITH_MARSHALLING( \ 2139 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2140 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2141 #include "clang/Driver/Options.inc" 2142 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2143 } 2144 2145 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2146 DiagnosticsEngine &Diags) { 2147 FileSystemOptions &FileSystemOpts = Opts; 2148 bool Success = true; 2149 2150 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2151 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2152 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2153 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2154 MERGER, EXTRACTOR, TABLE_INDEX) \ 2155 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2156 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2157 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2158 MERGER, TABLE_INDEX) 2159 #include "clang/Driver/Options.inc" 2160 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2161 2162 return Success; 2163 } 2164 2165 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2166 SmallVectorImpl<const char *> &Args, 2167 CompilerInvocation::StringAllocator SA) { 2168 const MigratorOptions &MigratorOpts = Opts; 2169 2170 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2171 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2172 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2173 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2174 MERGER, EXTRACTOR, TABLE_INDEX) \ 2175 GENERATE_OPTION_WITH_MARSHALLING( \ 2176 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2177 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2178 #include "clang/Driver/Options.inc" 2179 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2180 } 2181 2182 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2183 DiagnosticsEngine &Diags) { 2184 MigratorOptions &MigratorOpts = Opts; 2185 bool Success = true; 2186 2187 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2188 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2189 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2190 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2191 MERGER, EXTRACTOR, TABLE_INDEX) \ 2192 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2193 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2194 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2195 MERGER, TABLE_INDEX) 2196 #include "clang/Driver/Options.inc" 2197 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2198 2199 return Success; 2200 } 2201 2202 void CompilerInvocation::GenerateDiagnosticArgs( 2203 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2204 StringAllocator SA, bool DefaultDiagColor) { 2205 const DiagnosticOptions *DiagnosticOpts = &Opts; 2206 #define DIAG_OPTION_WITH_MARSHALLING( \ 2207 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2208 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2209 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2210 MERGER, EXTRACTOR, TABLE_INDEX) \ 2211 GENERATE_OPTION_WITH_MARSHALLING( \ 2212 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2213 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2214 #include "clang/Driver/Options.inc" 2215 #undef DIAG_OPTION_WITH_MARSHALLING 2216 2217 if (!Opts.DiagnosticSerializationFile.empty()) 2218 GenerateArg(Args, OPT_diagnostic_serialized_file, 2219 Opts.DiagnosticSerializationFile, SA); 2220 2221 if (Opts.ShowColors) 2222 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2223 2224 if (Opts.VerifyDiagnostics && 2225 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2226 GenerateArg(Args, OPT_verify, SA); 2227 2228 for (const auto &Prefix : Opts.VerifyPrefixes) 2229 if (Prefix != "expected") 2230 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2231 2232 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2233 if (VIU == DiagnosticLevelMask::None) { 2234 // This is the default, don't generate anything. 2235 } else if (VIU == DiagnosticLevelMask::All) { 2236 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2237 } else { 2238 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2239 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2240 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2241 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2242 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2243 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2244 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2245 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2246 } 2247 2248 for (const auto &Warning : Opts.Warnings) { 2249 // This option is automatically generated from UndefPrefixes. 2250 if (Warning == "undef-prefix") 2251 continue; 2252 Args.push_back(SA(StringRef("-W") + Warning)); 2253 } 2254 2255 for (const auto &Remark : Opts.Remarks) { 2256 // These arguments are generated from OptimizationRemark fields of 2257 // CodeGenOptions. 2258 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2259 "pass-analysis", "no-pass-analysis", 2260 "pass-missed", "no-pass-missed"}; 2261 if (llvm::is_contained(IgnoredRemarks, Remark)) 2262 continue; 2263 2264 Args.push_back(SA(StringRef("-R") + Remark)); 2265 } 2266 } 2267 2268 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2269 DiagnosticsEngine *Diags, 2270 bool DefaultDiagColor) { 2271 Optional<DiagnosticsEngine> IgnoringDiags; 2272 if (!Diags) { 2273 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2274 new IgnoringDiagConsumer()); 2275 Diags = &*IgnoringDiags; 2276 } 2277 2278 // The key paths of diagnostic options defined in Options.td start with 2279 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2280 DiagnosticOptions *DiagnosticOpts = &Opts; 2281 bool Success = true; 2282 2283 #define DIAG_OPTION_WITH_MARSHALLING( \ 2284 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2285 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2286 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2287 MERGER, EXTRACTOR, TABLE_INDEX) \ 2288 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, Success, ID, FLAGS, PARAM, \ 2289 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2290 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2291 MERGER, TABLE_INDEX) 2292 #include "clang/Driver/Options.inc" 2293 #undef DIAG_OPTION_WITH_MARSHALLING 2294 2295 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2296 2297 if (Arg *A = 2298 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2299 Opts.DiagnosticSerializationFile = A->getValue(); 2300 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2301 2302 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2303 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2304 if (Args.hasArg(OPT_verify)) 2305 Opts.VerifyPrefixes.push_back("expected"); 2306 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2307 // then sort it to prepare for fast lookup using std::binary_search. 2308 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) { 2309 Opts.VerifyDiagnostics = false; 2310 Success = false; 2311 } 2312 else 2313 llvm::sort(Opts.VerifyPrefixes); 2314 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2315 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 2316 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 2317 *Diags, DiagMask); 2318 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2319 DiagMask = DiagnosticLevelMask::All; 2320 Opts.setVerifyIgnoreUnexpected(DiagMask); 2321 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2322 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2323 Diags->Report(diag::warn_ignoring_ftabstop_value) 2324 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2325 } 2326 2327 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2328 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2329 2330 return Success; 2331 } 2332 2333 bool CompilerInvocation::ParseDiagnosticArgsRoundTrip(CompilerInvocation &Res, 2334 DiagnosticOptions &Opts, 2335 ArgList &Args, 2336 DiagnosticsEngine *Diags, 2337 bool DefaultDiagColor) { 2338 return clang::ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, Diags, 2339 DefaultDiagColor); 2340 } 2341 2342 /// Parse the argument to the -ftest-module-file-extension 2343 /// command-line argument. 2344 /// 2345 /// \returns true on error, false on success. 2346 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2347 std::string &BlockName, 2348 unsigned &MajorVersion, 2349 unsigned &MinorVersion, 2350 bool &Hashed, 2351 std::string &UserInfo) { 2352 SmallVector<StringRef, 5> Args; 2353 Arg.split(Args, ':', 5); 2354 if (Args.size() < 5) 2355 return true; 2356 2357 BlockName = std::string(Args[0]); 2358 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2359 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2360 if (Args[3].getAsInteger(2, Hashed)) return true; 2361 if (Args.size() > 4) 2362 UserInfo = std::string(Args[4]); 2363 return false; 2364 } 2365 2366 /// Return a table that associates command line option specifiers with the 2367 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2368 /// intentionally missing, as this case is handled separately from other 2369 /// frontend options. 2370 static const auto &getFrontendActionTable() { 2371 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2372 {frontend::ASTDeclList, OPT_ast_list}, 2373 2374 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2375 {frontend::ASTDump, OPT_ast_dump_all}, 2376 {frontend::ASTDump, OPT_ast_dump_EQ}, 2377 {frontend::ASTDump, OPT_ast_dump}, 2378 {frontend::ASTDump, OPT_ast_dump_lookups}, 2379 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2380 2381 {frontend::ASTPrint, OPT_ast_print}, 2382 {frontend::ASTView, OPT_ast_view}, 2383 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2384 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2385 {frontend::DumpTokens, OPT_dump_tokens}, 2386 {frontend::EmitAssembly, OPT_S}, 2387 {frontend::EmitBC, OPT_emit_llvm_bc}, 2388 {frontend::EmitHTML, OPT_emit_html}, 2389 {frontend::EmitLLVM, OPT_emit_llvm}, 2390 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2391 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2392 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2393 {frontend::EmitObj, OPT_emit_obj}, 2394 2395 {frontend::FixIt, OPT_fixit_EQ}, 2396 {frontend::FixIt, OPT_fixit}, 2397 2398 {frontend::GenerateModule, OPT_emit_module}, 2399 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2400 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2401 {frontend::GeneratePCH, OPT_emit_pch}, 2402 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2403 {frontend::InitOnly, OPT_init_only}, 2404 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2405 {frontend::ModuleFileInfo, OPT_module_file_info}, 2406 {frontend::VerifyPCH, OPT_verify_pch}, 2407 {frontend::PrintPreamble, OPT_print_preamble}, 2408 {frontend::PrintPreprocessedInput, OPT_E}, 2409 {frontend::TemplightDump, OPT_templight_dump}, 2410 {frontend::RewriteMacros, OPT_rewrite_macros}, 2411 {frontend::RewriteObjC, OPT_rewrite_objc}, 2412 {frontend::RewriteTest, OPT_rewrite_test}, 2413 {frontend::RunAnalysis, OPT_analyze}, 2414 {frontend::MigrateSource, OPT_migrate}, 2415 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2416 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2417 OPT_print_dependency_directives_minimized_source}, 2418 }; 2419 2420 return Table; 2421 } 2422 2423 /// Maps command line option to frontend action. 2424 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2425 for (const auto &ActionOpt : getFrontendActionTable()) 2426 if (ActionOpt.second == Opt.getID()) 2427 return ActionOpt.first; 2428 2429 return None; 2430 } 2431 2432 /// Maps frontend action to command line option. 2433 static Optional<OptSpecifier> 2434 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2435 for (const auto &ActionOpt : getFrontendActionTable()) 2436 if (ActionOpt.first == ProgramAction) 2437 return OptSpecifier(ActionOpt.second); 2438 2439 return None; 2440 } 2441 2442 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2443 SmallVectorImpl<const char *> &Args, 2444 CompilerInvocation::StringAllocator SA, 2445 bool IsHeader) { 2446 const FrontendOptions &FrontendOpts = Opts; 2447 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2448 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2449 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2450 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2451 MERGER, EXTRACTOR, TABLE_INDEX) \ 2452 GENERATE_OPTION_WITH_MARSHALLING( \ 2453 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2454 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2455 #include "clang/Driver/Options.inc" 2456 #undef FRONTEND_OPTION_WITH_MARSHALLING 2457 2458 Optional<OptSpecifier> ProgramActionOpt = 2459 getProgramActionOpt(Opts.ProgramAction); 2460 2461 // Generating a simple flag covers most frontend actions. 2462 std::function<void()> GenerateProgramAction = [&]() { 2463 GenerateArg(Args, *ProgramActionOpt, SA); 2464 }; 2465 2466 if (!ProgramActionOpt) { 2467 // PluginAction is the only program action handled separately. 2468 assert(Opts.ProgramAction == frontend::PluginAction && 2469 "Frontend action without option."); 2470 GenerateProgramAction = [&]() { 2471 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2472 }; 2473 } 2474 2475 // FIXME: Simplify the complex 'AST dump' command line. 2476 if (Opts.ProgramAction == frontend::ASTDump) { 2477 GenerateProgramAction = [&]() { 2478 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2479 // marshalling infrastructure. 2480 2481 if (Opts.ASTDumpFormat != ADOF_Default) { 2482 StringRef Format; 2483 switch (Opts.ASTDumpFormat) { 2484 case ADOF_Default: 2485 llvm_unreachable("Default AST dump format."); 2486 case ADOF_JSON: 2487 Format = "json"; 2488 break; 2489 } 2490 2491 if (Opts.ASTDumpAll) 2492 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2493 if (Opts.ASTDumpDecls) 2494 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2495 } else { 2496 if (Opts.ASTDumpAll) 2497 GenerateArg(Args, OPT_ast_dump_all, SA); 2498 if (Opts.ASTDumpDecls) 2499 GenerateArg(Args, OPT_ast_dump, SA); 2500 } 2501 }; 2502 } 2503 2504 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2505 GenerateProgramAction = [&]() { 2506 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2507 }; 2508 } 2509 2510 GenerateProgramAction(); 2511 2512 for (const auto &PluginArgs : Opts.PluginArgs) 2513 for (const auto &PluginArg : PluginArgs.second) 2514 GenerateArg(Args, OPT_plugin_arg, PluginArgs.first + PluginArg, SA); 2515 2516 for (const auto &Ext : Opts.ModuleFileExtensions) { 2517 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) { 2518 std::string Buffer; 2519 llvm::raw_string_ostream OS(Buffer); 2520 OS << *TestExt; 2521 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, OS.str(), SA); 2522 } 2523 } 2524 2525 if (!Opts.CodeCompletionAt.FileName.empty()) 2526 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2527 SA); 2528 2529 for (const auto &Plugin : Opts.Plugins) 2530 GenerateArg(Args, OPT_load, Plugin, SA); 2531 2532 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2533 2534 for (const auto &ModuleFile : Opts.ModuleFiles) 2535 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2536 2537 if (Opts.AuxTargetCPU.hasValue()) 2538 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2539 2540 if (Opts.AuxTargetFeatures.hasValue()) 2541 for (const auto &Feature : *Opts.AuxTargetFeatures) 2542 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2543 2544 { 2545 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2546 StringRef ModuleMap = 2547 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2548 StringRef Header = IsHeader ? "-header" : ""; 2549 2550 StringRef Lang; 2551 switch (Opts.DashX.getLanguage()) { 2552 case Language::C: 2553 Lang = "c"; 2554 break; 2555 case Language::OpenCL: 2556 Lang = "cl"; 2557 break; 2558 case Language::CUDA: 2559 Lang = "cuda"; 2560 break; 2561 case Language::HIP: 2562 Lang = "hip"; 2563 break; 2564 case Language::CXX: 2565 Lang = "c++"; 2566 break; 2567 case Language::ObjC: 2568 Lang = "objective-c"; 2569 break; 2570 case Language::ObjCXX: 2571 Lang = "objective-c++"; 2572 break; 2573 case Language::RenderScript: 2574 Lang = "renderscript"; 2575 break; 2576 case Language::Asm: 2577 Lang = "assembler-with-cpp"; 2578 break; 2579 case Language::Unknown: 2580 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2581 "Generating -x argument for unknown language (not precompiled)."); 2582 Lang = "ast"; 2583 break; 2584 case Language::LLVM_IR: 2585 Lang = "ir"; 2586 break; 2587 } 2588 2589 GenerateArg(Args, OPT_x, Lang + Header + ModuleMap + Preprocessed, SA); 2590 } 2591 2592 // OPT_INPUT has a unique class, generate it directly. 2593 for (const auto &Input : Opts.Inputs) 2594 Args.push_back(SA(Input.getFile())); 2595 } 2596 2597 static bool ParseFrontendArgsImpl(FrontendOptions &Opts, ArgList &Args, 2598 DiagnosticsEngine &Diags, 2599 bool &IsHeaderFile) { 2600 FrontendOptions &FrontendOpts = Opts; 2601 bool Success = true; 2602 unsigned NumErrorsBefore = Diags.getNumErrors(); 2603 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2604 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2605 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2606 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2607 MERGER, EXTRACTOR, TABLE_INDEX) \ 2608 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2609 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2610 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2611 MERGER, TABLE_INDEX) 2612 #include "clang/Driver/Options.inc" 2613 #undef FRONTEND_OPTION_WITH_MARSHALLING 2614 2615 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2616 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2617 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2618 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2619 assert(ProgramAction && "Option specifier not in Action_Group."); 2620 2621 if (ProgramAction == frontend::ASTDump && 2622 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2623 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2624 .CaseLower("default", ADOF_Default) 2625 .CaseLower("json", ADOF_JSON) 2626 .Default(std::numeric_limits<unsigned>::max()); 2627 2628 if (Val != std::numeric_limits<unsigned>::max()) 2629 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2630 else { 2631 Diags.Report(diag::err_drv_invalid_value) 2632 << A->getAsString(Args) << A->getValue(); 2633 Opts.ASTDumpFormat = ADOF_Default; 2634 } 2635 } 2636 2637 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2638 Opts.FixItSuffix = A->getValue(); 2639 2640 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2641 StringRef ArgStr = 2642 Args.hasArg(OPT_interface_stub_version_EQ) 2643 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2644 : "experimental-ifs-v2"; 2645 if (ArgStr == "experimental-yaml-elf-v1" || 2646 ArgStr == "experimental-ifs-v1" || 2647 ArgStr == "experimental-tapi-elf-v1") { 2648 std::string ErrorMessage = 2649 "Invalid interface stub format: " + ArgStr.str() + 2650 " is deprecated."; 2651 Diags.Report(diag::err_drv_invalid_value) 2652 << "Must specify a valid interface stub format type, ie: " 2653 "-interface-stub-version=experimental-ifs-v2" 2654 << ErrorMessage; 2655 ProgramAction = frontend::ParseSyntaxOnly; 2656 } else if (!ArgStr.startswith("experimental-ifs-")) { 2657 std::string ErrorMessage = 2658 "Invalid interface stub format: " + ArgStr.str() + "."; 2659 Diags.Report(diag::err_drv_invalid_value) 2660 << "Must specify a valid interface stub format type, ie: " 2661 "-interface-stub-version=experimental-ifs-v2" 2662 << ErrorMessage; 2663 ProgramAction = frontend::ParseSyntaxOnly; 2664 } 2665 } 2666 2667 Opts.ProgramAction = *ProgramAction; 2668 } 2669 2670 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2671 Opts.Plugins.emplace_back(A->getValue(0)); 2672 Opts.ProgramAction = frontend::PluginAction; 2673 Opts.ActionName = A->getValue(); 2674 } 2675 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2676 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2677 2678 for (const std::string &Arg : 2679 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2680 std::string BlockName; 2681 unsigned MajorVersion; 2682 unsigned MinorVersion; 2683 bool Hashed; 2684 std::string UserInfo; 2685 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2686 MinorVersion, Hashed, UserInfo)) { 2687 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2688 2689 continue; 2690 } 2691 2692 // Add the testing module file extension. 2693 Opts.ModuleFileExtensions.push_back( 2694 std::make_shared<TestModuleFileExtension>( 2695 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2696 } 2697 2698 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2699 Opts.CodeCompletionAt = 2700 ParsedSourceLocation::FromString(A->getValue()); 2701 if (Opts.CodeCompletionAt.FileName.empty()) 2702 Diags.Report(diag::err_drv_invalid_value) 2703 << A->getAsString(Args) << A->getValue(); 2704 } 2705 2706 Opts.Plugins = Args.getAllArgValues(OPT_load); 2707 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2708 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2709 // Only the -fmodule-file=<file> form. 2710 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2711 StringRef Val = A->getValue(); 2712 if (Val.find('=') == StringRef::npos) 2713 Opts.ModuleFiles.push_back(std::string(Val)); 2714 } 2715 2716 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2717 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2718 << "-emit-module"; 2719 2720 if (Args.hasArg(OPT_aux_target_cpu)) 2721 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2722 if (Args.hasArg(OPT_aux_target_feature)) 2723 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2724 2725 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2726 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2727 Diags.Report(diag::err_drv_argument_not_allowed_with) 2728 << "ARC migration" << "ObjC migration"; 2729 } 2730 2731 InputKind DashX(Language::Unknown); 2732 if (const Arg *A = Args.getLastArg(OPT_x)) { 2733 StringRef XValue = A->getValue(); 2734 2735 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2736 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2737 bool Preprocessed = XValue.consume_back("-cpp-output"); 2738 bool ModuleMap = XValue.consume_back("-module-map"); 2739 IsHeaderFile = !Preprocessed && !ModuleMap && 2740 XValue != "precompiled-header" && 2741 XValue.consume_back("-header"); 2742 2743 // Principal languages. 2744 DashX = llvm::StringSwitch<InputKind>(XValue) 2745 .Case("c", Language::C) 2746 .Case("cl", Language::OpenCL) 2747 .Case("cuda", Language::CUDA) 2748 .Case("hip", Language::HIP) 2749 .Case("c++", Language::CXX) 2750 .Case("objective-c", Language::ObjC) 2751 .Case("objective-c++", Language::ObjCXX) 2752 .Case("renderscript", Language::RenderScript) 2753 .Default(Language::Unknown); 2754 2755 // "objc[++]-cpp-output" is an acceptable synonym for 2756 // "objective-c[++]-cpp-output". 2757 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2758 DashX = llvm::StringSwitch<InputKind>(XValue) 2759 .Case("objc", Language::ObjC) 2760 .Case("objc++", Language::ObjCXX) 2761 .Default(Language::Unknown); 2762 2763 // Some special cases cannot be combined with suffixes. 2764 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2765 DashX = llvm::StringSwitch<InputKind>(XValue) 2766 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2767 .Case("assembler-with-cpp", Language::Asm) 2768 .Cases("ast", "pcm", "precompiled-header", 2769 InputKind(Language::Unknown, InputKind::Precompiled)) 2770 .Case("ir", Language::LLVM_IR) 2771 .Default(Language::Unknown); 2772 2773 if (DashX.isUnknown()) 2774 Diags.Report(diag::err_drv_invalid_value) 2775 << A->getAsString(Args) << A->getValue(); 2776 2777 if (Preprocessed) 2778 DashX = DashX.getPreprocessed(); 2779 if (ModuleMap) 2780 DashX = DashX.withFormat(InputKind::ModuleMap); 2781 } 2782 2783 // '-' is the default input if none is given. 2784 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2785 Opts.Inputs.clear(); 2786 if (Inputs.empty()) 2787 Inputs.push_back("-"); 2788 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2789 InputKind IK = DashX; 2790 if (IK.isUnknown()) { 2791 IK = FrontendOptions::getInputKindForExtension( 2792 StringRef(Inputs[i]).rsplit('.').second); 2793 // FIXME: Warn on this? 2794 if (IK.isUnknown()) 2795 IK = Language::C; 2796 // FIXME: Remove this hack. 2797 if (i == 0) 2798 DashX = IK; 2799 } 2800 2801 bool IsSystem = false; 2802 2803 // The -emit-module action implicitly takes a module map. 2804 if (Opts.ProgramAction == frontend::GenerateModule && 2805 IK.getFormat() == InputKind::Source) { 2806 IK = IK.withFormat(InputKind::ModuleMap); 2807 IsSystem = Opts.IsSystemModule; 2808 } 2809 2810 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2811 } 2812 2813 Opts.DashX = DashX; 2814 2815 return Diags.getNumErrors() == NumErrorsBefore; 2816 } 2817 2818 static bool ParseFrontendArgs(CompilerInvocation &Res, FrontendOptions &Opts, 2819 ArgList &Args, DiagnosticsEngine &Diags, 2820 bool &IsHeaderFile) { 2821 return ParseFrontendArgsImpl(Res.getFrontendOpts(), Args, Diags, 2822 IsHeaderFile); 2823 } 2824 2825 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2826 void *MainAddr) { 2827 std::string ClangExecutable = 2828 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2829 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2830 } 2831 2832 void CompilerInvocation::GenerateHeaderSearchArgs( 2833 HeaderSearchOptions &Opts, SmallVectorImpl<const char *> &Args, 2834 CompilerInvocation::StringAllocator SA) { 2835 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2836 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2837 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2838 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2839 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2840 MERGER, EXTRACTOR, TABLE_INDEX) \ 2841 GENERATE_OPTION_WITH_MARSHALLING( \ 2842 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2843 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2844 #include "clang/Driver/Options.inc" 2845 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2846 2847 if (Opts.UseLibcxx) 2848 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2849 2850 if (!Opts.ModuleCachePath.empty()) 2851 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2852 2853 for (const auto &File : Opts.PrebuiltModuleFiles) 2854 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2855 2856 for (const auto &Path : Opts.PrebuiltModulePaths) 2857 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2858 2859 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2860 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2861 2862 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2863 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2864 llvm::Optional<bool> IsFramework, 2865 llvm::Optional<bool> IgnoreSysRoot) { 2866 return llvm::find(Groups, Entry.Group) != Groups.end() && 2867 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2868 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2869 }; 2870 2871 auto It = Opts.UserEntries.begin(); 2872 auto End = Opts.UserEntries.end(); 2873 2874 // Add -I..., -F..., and -index-header-map options in order. 2875 for (; It < End && 2876 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2877 ++It) { 2878 OptSpecifier Opt = [It, Matches]() { 2879 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2880 return OPT_F; 2881 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2882 return OPT_I; 2883 if (Matches(*It, frontend::Angled, true, true)) 2884 return OPT_F; 2885 if (Matches(*It, frontend::Angled, false, true)) 2886 return OPT_I; 2887 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2888 }(); 2889 2890 if (It->Group == frontend::IndexHeaderMap) 2891 GenerateArg(Args, OPT_index_header_map, SA); 2892 GenerateArg(Args, Opt, It->Path, SA); 2893 }; 2894 2895 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2896 // have already been generated as "-I[xx]yy". If that's the case, their 2897 // position on command line was such that this has no semantic impact on 2898 // include paths. 2899 for (; It < End && 2900 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2901 ++It) { 2902 OptSpecifier Opt = 2903 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2904 GenerateArg(Args, Opt, It->Path, SA); 2905 } 2906 2907 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2908 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2909 // command line was such that this has no semantic impact on include paths. 2910 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2911 GenerateArg(Args, OPT_idirafter, It->Path, SA); 2912 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 2913 GenerateArg(Args, OPT_iquote, It->Path, SA); 2914 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 2915 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 2916 It->Path, SA); 2917 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 2918 GenerateArg(Args, OPT_iframework, It->Path, SA); 2919 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 2920 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 2921 2922 // Add the paths for the various language specific isystem flags. 2923 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 2924 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 2925 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 2926 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 2927 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 2928 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 2929 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 2930 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 2931 2932 // Add the internal paths from a driver that detects standard include paths. 2933 // Note: Some paths that came from "-internal-isystem" arguments may have 2934 // already been generated as "-isystem". If that's the case, their position on 2935 // command line was such that this has no semantic impact on include paths. 2936 for (; It < End && 2937 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 2938 ++It) { 2939 OptSpecifier Opt = It->Group == frontend::System 2940 ? OPT_internal_isystem 2941 : OPT_internal_externc_isystem; 2942 GenerateArg(Args, Opt, It->Path, SA); 2943 } 2944 2945 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 2946 2947 // Add the path prefixes which are implicitly treated as being system headers. 2948 for (const auto &P : Opts.SystemHeaderPrefixes) { 2949 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 2950 : OPT_no_system_header_prefix; 2951 GenerateArg(Args, Opt, P.Prefix, SA); 2952 } 2953 2954 for (const std::string &F : Opts.VFSOverlayFiles) 2955 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 2956 } 2957 2958 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2959 DiagnosticsEngine &Diags, 2960 const std::string &WorkingDir) { 2961 HeaderSearchOptions *HeaderSearchOpts = &Opts; 2962 bool Success = true; 2963 2964 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2965 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2966 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2967 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2968 MERGER, EXTRACTOR, TABLE_INDEX) \ 2969 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2970 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2971 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2972 MERGER, TABLE_INDEX) 2973 #include "clang/Driver/Options.inc" 2974 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2975 2976 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2977 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2978 2979 // Canonicalize -fmodules-cache-path before storing it. 2980 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2981 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2982 if (WorkingDir.empty()) 2983 llvm::sys::fs::make_absolute(P); 2984 else 2985 llvm::sys::fs::make_absolute(WorkingDir, P); 2986 } 2987 llvm::sys::path::remove_dots(P); 2988 Opts.ModuleCachePath = std::string(P.str()); 2989 2990 // Only the -fmodule-file=<name>=<file> form. 2991 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2992 StringRef Val = A->getValue(); 2993 if (Val.find('=') != StringRef::npos){ 2994 auto Split = Val.split('='); 2995 Opts.PrebuiltModuleFiles.insert( 2996 {std::string(Split.first), std::string(Split.second)}); 2997 } 2998 } 2999 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3000 Opts.AddPrebuiltModulePath(A->getValue()); 3001 3002 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3003 StringRef MacroDef = A->getValue(); 3004 Opts.ModulesIgnoreMacros.insert( 3005 llvm::CachedHashString(MacroDef.split('=').first)); 3006 } 3007 3008 // Add -I..., -F..., and -index-header-map options in order. 3009 bool IsIndexHeaderMap = false; 3010 bool IsSysrootSpecified = 3011 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3012 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3013 if (A->getOption().matches(OPT_index_header_map)) { 3014 // -index-header-map applies to the next -I or -F. 3015 IsIndexHeaderMap = true; 3016 continue; 3017 } 3018 3019 frontend::IncludeDirGroup Group = 3020 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3021 3022 bool IsFramework = A->getOption().matches(OPT_F); 3023 std::string Path = A->getValue(); 3024 3025 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3026 SmallString<32> Buffer; 3027 llvm::sys::path::append(Buffer, Opts.Sysroot, 3028 llvm::StringRef(A->getValue()).substr(1)); 3029 Path = std::string(Buffer.str()); 3030 } 3031 3032 Opts.AddPath(Path, Group, IsFramework, 3033 /*IgnoreSysroot*/ true); 3034 IsIndexHeaderMap = false; 3035 } 3036 3037 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3038 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3039 for (const auto *A : 3040 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3041 if (A->getOption().matches(OPT_iprefix)) 3042 Prefix = A->getValue(); 3043 else if (A->getOption().matches(OPT_iwithprefix)) 3044 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3045 else 3046 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3047 } 3048 3049 for (const auto *A : Args.filtered(OPT_idirafter)) 3050 Opts.AddPath(A->getValue(), frontend::After, false, true); 3051 for (const auto *A : Args.filtered(OPT_iquote)) 3052 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3053 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3054 Opts.AddPath(A->getValue(), frontend::System, false, 3055 !A->getOption().matches(OPT_iwithsysroot)); 3056 for (const auto *A : Args.filtered(OPT_iframework)) 3057 Opts.AddPath(A->getValue(), frontend::System, true, true); 3058 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3059 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3060 /*IgnoreSysRoot=*/false); 3061 3062 // Add the paths for the various language specific isystem flags. 3063 for (const auto *A : Args.filtered(OPT_c_isystem)) 3064 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3065 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3066 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3067 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3068 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3069 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3070 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3071 3072 // Add the internal paths from a driver that detects standard include paths. 3073 for (const auto *A : 3074 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3075 frontend::IncludeDirGroup Group = frontend::System; 3076 if (A->getOption().matches(OPT_internal_externc_isystem)) 3077 Group = frontend::ExternCSystem; 3078 Opts.AddPath(A->getValue(), Group, false, true); 3079 } 3080 3081 // Add the path prefixes which are implicitly treated as being system headers. 3082 for (const auto *A : 3083 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3084 Opts.AddSystemHeaderPrefix( 3085 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3086 3087 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3088 Opts.AddVFSOverlayFile(A->getValue()); 3089 3090 return Success; 3091 } 3092 3093 void CompilerInvocation::ParseHeaderSearchArgs(CompilerInvocation &Res, 3094 HeaderSearchOptions &Opts, 3095 ArgList &Args, 3096 DiagnosticsEngine &Diags, 3097 const std::string &WorkingDir) { 3098 ::ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, WorkingDir); 3099 } 3100 3101 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 3102 const llvm::Triple &T, 3103 std::vector<std::string> &Includes, 3104 LangStandard::Kind LangStd) { 3105 // Set some properties which depend solely on the input kind; it would be nice 3106 // to move these to the language standard, and have the driver resolve the 3107 // input kind + language standard. 3108 // 3109 // FIXME: Perhaps a better model would be for a single source file to have 3110 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 3111 // simultaneously active? 3112 if (IK.getLanguage() == Language::Asm) { 3113 Opts.AsmPreprocessor = 1; 3114 } else if (IK.isObjectiveC()) { 3115 Opts.ObjC = 1; 3116 } 3117 3118 if (LangStd == LangStandard::lang_unspecified) { 3119 // Based on the base language, pick one. 3120 switch (IK.getLanguage()) { 3121 case Language::Unknown: 3122 case Language::LLVM_IR: 3123 llvm_unreachable("Invalid input kind!"); 3124 case Language::OpenCL: 3125 LangStd = LangStandard::lang_opencl10; 3126 break; 3127 case Language::CUDA: 3128 LangStd = LangStandard::lang_cuda; 3129 break; 3130 case Language::Asm: 3131 case Language::C: 3132 #if defined(CLANG_DEFAULT_STD_C) 3133 LangStd = CLANG_DEFAULT_STD_C; 3134 #else 3135 // The PS4 uses C99 as the default C standard. 3136 if (T.isPS4()) 3137 LangStd = LangStandard::lang_gnu99; 3138 else 3139 LangStd = LangStandard::lang_gnu17; 3140 #endif 3141 break; 3142 case Language::ObjC: 3143 #if defined(CLANG_DEFAULT_STD_C) 3144 LangStd = CLANG_DEFAULT_STD_C; 3145 #else 3146 LangStd = LangStandard::lang_gnu11; 3147 #endif 3148 break; 3149 case Language::CXX: 3150 case Language::ObjCXX: 3151 #if defined(CLANG_DEFAULT_STD_CXX) 3152 LangStd = CLANG_DEFAULT_STD_CXX; 3153 #else 3154 LangStd = LangStandard::lang_gnucxx14; 3155 #endif 3156 break; 3157 case Language::RenderScript: 3158 LangStd = LangStandard::lang_c99; 3159 break; 3160 case Language::HIP: 3161 LangStd = LangStandard::lang_hip; 3162 break; 3163 } 3164 } 3165 3166 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3167 Opts.LangStd = LangStd; 3168 Opts.LineComment = Std.hasLineComments(); 3169 Opts.C99 = Std.isC99(); 3170 Opts.C11 = Std.isC11(); 3171 Opts.C17 = Std.isC17(); 3172 Opts.C2x = Std.isC2x(); 3173 Opts.CPlusPlus = Std.isCPlusPlus(); 3174 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 3175 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 3176 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 3177 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 3178 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 3179 Opts.GNUMode = Std.isGNUMode(); 3180 Opts.GNUCVersion = 0; 3181 Opts.HexFloats = Std.hasHexFloats(); 3182 Opts.ImplicitInt = Std.hasImplicitInt(); 3183 3184 Opts.CPlusPlusModules = Opts.CPlusPlus20; 3185 3186 // Set OpenCL Version. 3187 Opts.OpenCL = Std.isOpenCL(); 3188 if (LangStd == LangStandard::lang_opencl10) 3189 Opts.OpenCLVersion = 100; 3190 else if (LangStd == LangStandard::lang_opencl11) 3191 Opts.OpenCLVersion = 110; 3192 else if (LangStd == LangStandard::lang_opencl12) 3193 Opts.OpenCLVersion = 120; 3194 else if (LangStd == LangStandard::lang_opencl20) 3195 Opts.OpenCLVersion = 200; 3196 else if (LangStd == LangStandard::lang_opencl30) 3197 Opts.OpenCLVersion = 300; 3198 else if (LangStd == LangStandard::lang_openclcpp) 3199 Opts.OpenCLCPlusPlusVersion = 100; 3200 3201 // OpenCL has some additional defaults. 3202 if (Opts.OpenCL) { 3203 Opts.AltiVec = 0; 3204 Opts.ZVector = 0; 3205 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3206 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 3207 Opts.OpenCLPipe = Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3208 Opts.OpenCLGenericAddressSpace = 3209 Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3210 3211 // Include default header file for OpenCL. 3212 if (Opts.IncludeDefaultHeader) { 3213 if (Opts.DeclareOpenCLBuiltins) { 3214 // Only include base header file for builtin types and constants. 3215 Includes.push_back("opencl-c-base.h"); 3216 } else { 3217 Includes.push_back("opencl-c.h"); 3218 } 3219 } 3220 } 3221 3222 Opts.HIP = IK.getLanguage() == Language::HIP; 3223 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 3224 if (Opts.HIP) { 3225 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 3226 // fuses multiplication/addition instructions without contract flag from 3227 // device library functions in LLVM bitcode, which causes accuracy loss in 3228 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 3229 // For device library functions in bitcode to work, 'Strict' or 'Standard' 3230 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 3231 // FP contract option is used to allow fuse across statements in frontend 3232 // whereas respecting contract flag in backend. 3233 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3234 } else if (Opts.CUDA) { 3235 // Allow fuse across statements disregarding pragmas. 3236 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3237 } 3238 3239 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 3240 3241 // OpenCL and C++ both have bool, true, false keywords. 3242 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 3243 3244 // OpenCL has half keyword 3245 Opts.Half = Opts.OpenCL; 3246 } 3247 3248 /// Check if input file kind and language standard are compatible. 3249 static bool IsInputCompatibleWithStandard(InputKind IK, 3250 const LangStandard &S) { 3251 switch (IK.getLanguage()) { 3252 case Language::Unknown: 3253 case Language::LLVM_IR: 3254 llvm_unreachable("should not parse language flags for this input"); 3255 3256 case Language::C: 3257 case Language::ObjC: 3258 case Language::RenderScript: 3259 return S.getLanguage() == Language::C; 3260 3261 case Language::OpenCL: 3262 return S.getLanguage() == Language::OpenCL; 3263 3264 case Language::CXX: 3265 case Language::ObjCXX: 3266 return S.getLanguage() == Language::CXX; 3267 3268 case Language::CUDA: 3269 // FIXME: What -std= values should be permitted for CUDA compilations? 3270 return S.getLanguage() == Language::CUDA || 3271 S.getLanguage() == Language::CXX; 3272 3273 case Language::HIP: 3274 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3275 3276 case Language::Asm: 3277 // Accept (and ignore) all -std= values. 3278 // FIXME: The -std= value is not ignored; it affects the tokenization 3279 // and preprocessing rules if we're preprocessing this asm input. 3280 return true; 3281 } 3282 3283 llvm_unreachable("unexpected input language"); 3284 } 3285 3286 /// Get language name for given input kind. 3287 static const StringRef GetInputKindName(InputKind IK) { 3288 switch (IK.getLanguage()) { 3289 case Language::C: 3290 return "C"; 3291 case Language::ObjC: 3292 return "Objective-C"; 3293 case Language::CXX: 3294 return "C++"; 3295 case Language::ObjCXX: 3296 return "Objective-C++"; 3297 case Language::OpenCL: 3298 return "OpenCL"; 3299 case Language::CUDA: 3300 return "CUDA"; 3301 case Language::RenderScript: 3302 return "RenderScript"; 3303 case Language::HIP: 3304 return "HIP"; 3305 3306 case Language::Asm: 3307 return "Asm"; 3308 case Language::LLVM_IR: 3309 return "LLVM IR"; 3310 3311 case Language::Unknown: 3312 break; 3313 } 3314 llvm_unreachable("unknown input language"); 3315 } 3316 3317 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3318 SmallVectorImpl<const char *> &Args, 3319 StringAllocator SA, 3320 const llvm::Triple &T) { 3321 OptSpecifier StdOpt; 3322 switch (Opts.LangStd) { 3323 case LangStandard::lang_opencl10: 3324 case LangStandard::lang_opencl11: 3325 case LangStandard::lang_opencl12: 3326 case LangStandard::lang_opencl20: 3327 case LangStandard::lang_opencl30: 3328 case LangStandard::lang_openclcpp: 3329 StdOpt = OPT_cl_std_EQ; 3330 break; 3331 default: 3332 StdOpt = OPT_std_EQ; 3333 break; 3334 } 3335 3336 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3337 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3338 3339 if (Opts.IncludeDefaultHeader) 3340 GenerateArg(Args, OPT_finclude_default_header, SA); 3341 if (Opts.DeclareOpenCLBuiltins) 3342 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3343 3344 const LangOptions *LangOpts = &Opts; 3345 3346 #define LANG_OPTION_WITH_MARSHALLING( \ 3347 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3348 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3349 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3350 MERGER, EXTRACTOR, TABLE_INDEX) \ 3351 GENERATE_OPTION_WITH_MARSHALLING( \ 3352 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3353 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3354 #include "clang/Driver/Options.inc" 3355 #undef LANG_OPTION_WITH_MARSHALLING 3356 3357 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3358 3359 if (Opts.ObjC) { 3360 std::string Buffer; 3361 llvm::raw_string_ostream Stream(Buffer); 3362 Stream << Opts.ObjCRuntime; 3363 GenerateArg(Args, OPT_fobjc_runtime_EQ, Stream.str(), SA); 3364 3365 if (Opts.GC == LangOptions::GCOnly) 3366 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3367 else if (Opts.GC == LangOptions::HybridGC) 3368 GenerateArg(Args, OPT_fobjc_gc, SA); 3369 else if (Opts.ObjCAutoRefCount == 1) 3370 GenerateArg(Args, OPT_fobjc_arc, SA); 3371 3372 if (Opts.ObjCWeakRuntime) 3373 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3374 3375 if (Opts.ObjCWeak) 3376 GenerateArg(Args, OPT_fobjc_weak, SA); 3377 3378 if (Opts.ObjCSubscriptingLegacyRuntime) 3379 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3380 } 3381 3382 if (Opts.GNUCVersion != 0) { 3383 unsigned Major = Opts.GNUCVersion / 100 / 100; 3384 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3385 unsigned Patch = Opts.GNUCVersion % 100; 3386 GenerateArg(Args, OPT_fgnuc_version_EQ, 3387 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3388 } 3389 3390 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3391 GenerateArg(Args, OPT_ftrapv, SA); 3392 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3393 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3394 GenerateArg(Args, OPT_fwrapv, SA); 3395 } 3396 3397 if (Opts.MSCompatibilityVersion != 0) { 3398 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3399 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3400 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3401 GenerateArg(Args, OPT_fms_compatibility_version, 3402 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3403 } 3404 3405 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3406 if (!Opts.Trigraphs) 3407 GenerateArg(Args, OPT_fno_trigraphs, SA); 3408 } else { 3409 if (Opts.Trigraphs) 3410 GenerateArg(Args, OPT_ftrigraphs, SA); 3411 } 3412 3413 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3414 GenerateArg(Args, OPT_fblocks, SA); 3415 3416 if (Opts.ConvergentFunctions && 3417 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3418 GenerateArg(Args, OPT_fconvergent_functions, SA); 3419 3420 if (Opts.NoBuiltin && !Opts.Freestanding) 3421 GenerateArg(Args, OPT_fno_builtin, SA); 3422 3423 if (!Opts.NoBuiltin) 3424 for (const auto &Func : Opts.NoBuiltinFuncs) 3425 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3426 3427 if (Opts.LongDoubleSize == 128) 3428 GenerateArg(Args, OPT_mlong_double_128, SA); 3429 else if (Opts.LongDoubleSize == 64) 3430 GenerateArg(Args, OPT_mlong_double_64, SA); 3431 3432 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3433 3434 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3435 // '-fopenmp-targets='. 3436 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3437 GenerateArg(Args, OPT_fopenmp, SA); 3438 3439 if (Opts.OpenMP != 50) 3440 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3441 3442 if (!Opts.OpenMPUseTLS) 3443 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3444 3445 if (Opts.OpenMPIsDevice) 3446 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3447 3448 if (Opts.OpenMPIRBuilder) 3449 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3450 } 3451 3452 if (Opts.OpenMPSimd) { 3453 GenerateArg(Args, OPT_fopenmp_simd, SA); 3454 3455 if (Opts.OpenMP != 50) 3456 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3457 } 3458 3459 if (Opts.OpenMPCUDANumSMs != 0) 3460 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3461 Twine(Opts.OpenMPCUDANumSMs), SA); 3462 3463 if (Opts.OpenMPCUDABlocksPerSM != 0) 3464 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3465 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3466 3467 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3468 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3469 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3470 3471 if (!Opts.OMPTargetTriples.empty()) { 3472 std::string Targets; 3473 llvm::raw_string_ostream OS(Targets); 3474 llvm::interleave( 3475 Opts.OMPTargetTriples, OS, 3476 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3477 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3478 } 3479 3480 if (!Opts.OMPHostIRFile.empty()) 3481 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3482 3483 if (Opts.OpenMPCUDAMode) 3484 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3485 3486 if (Opts.OpenMPCUDATargetParallel) 3487 GenerateArg(Args, OPT_fopenmp_cuda_parallel_target_regions, SA); 3488 3489 if (Opts.OpenMPCUDAForceFullRuntime) 3490 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3491 3492 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3493 // generated from CodeGenOptions. 3494 3495 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3496 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3497 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3498 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3499 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3500 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3501 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3502 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3503 3504 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3505 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3506 3507 // Conflating '-fsanitize-system-blacklist' and '-fsanitize-blacklist'. 3508 for (const std::string &F : Opts.NoSanitizeFiles) 3509 GenerateArg(Args, OPT_fsanitize_blacklist, F, SA); 3510 3511 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3512 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3513 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3514 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3515 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3516 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3517 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3518 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3519 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3520 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3521 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3522 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3523 3524 if (Opts.getSignReturnAddressScope() == 3525 LangOptions::SignReturnAddressScopeKind::All) 3526 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3527 else if (Opts.getSignReturnAddressScope() == 3528 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3529 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3530 3531 if (Opts.getSignReturnAddressKey() == 3532 LangOptions::SignReturnAddressKeyKind::BKey) 3533 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3534 } 3535 3536 bool CompilerInvocation::ParseLangArgsImpl(LangOptions &Opts, ArgList &Args, 3537 InputKind IK, const llvm::Triple &T, 3538 std::vector<std::string> &Includes, 3539 DiagnosticsEngine &Diags) { 3540 unsigned NumErrorsBefore = Diags.getNumErrors(); 3541 3542 // FIXME: Cleanup per-file based stuff. 3543 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3544 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3545 LangStd = LangStandard::getLangKind(A->getValue()); 3546 if (LangStd == LangStandard::lang_unspecified) { 3547 Diags.Report(diag::err_drv_invalid_value) 3548 << A->getAsString(Args) << A->getValue(); 3549 // Report supported standards with short description. 3550 for (unsigned KindValue = 0; 3551 KindValue != LangStandard::lang_unspecified; 3552 ++KindValue) { 3553 const LangStandard &Std = LangStandard::getLangStandardForKind( 3554 static_cast<LangStandard::Kind>(KindValue)); 3555 if (IsInputCompatibleWithStandard(IK, Std)) { 3556 auto Diag = Diags.Report(diag::note_drv_use_standard); 3557 Diag << Std.getName() << Std.getDescription(); 3558 unsigned NumAliases = 0; 3559 #define LANGSTANDARD(id, name, lang, desc, features) 3560 #define LANGSTANDARD_ALIAS(id, alias) \ 3561 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3562 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3563 #include "clang/Basic/LangStandards.def" 3564 Diag << NumAliases; 3565 #define LANGSTANDARD(id, name, lang, desc, features) 3566 #define LANGSTANDARD_ALIAS(id, alias) \ 3567 if (KindValue == LangStandard::lang_##id) Diag << alias; 3568 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3569 #include "clang/Basic/LangStandards.def" 3570 } 3571 } 3572 } else { 3573 // Valid standard, check to make sure language and standard are 3574 // compatible. 3575 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3576 if (!IsInputCompatibleWithStandard(IK, Std)) { 3577 Diags.Report(diag::err_drv_argument_not_allowed_with) 3578 << A->getAsString(Args) << GetInputKindName(IK); 3579 } 3580 } 3581 } 3582 3583 // -cl-std only applies for OpenCL language standards. 3584 // Override the -std option in this case. 3585 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3586 LangStandard::Kind OpenCLLangStd 3587 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3588 .Cases("cl", "CL", LangStandard::lang_opencl10) 3589 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3590 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3591 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3592 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3593 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3594 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 3595 .Default(LangStandard::lang_unspecified); 3596 3597 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3598 Diags.Report(diag::err_drv_invalid_value) 3599 << A->getAsString(Args) << A->getValue(); 3600 } 3601 else 3602 LangStd = OpenCLLangStd; 3603 } 3604 3605 // These need to be parsed now. They are used to set OpenCL defaults. 3606 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3607 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3608 3609 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd); 3610 3611 // The key paths of codegen options defined in Options.td start with 3612 // "LangOpts->". Let's provide the expected variable name and type. 3613 LangOptions *LangOpts = &Opts; 3614 bool Success = true; 3615 3616 #define LANG_OPTION_WITH_MARSHALLING( \ 3617 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3618 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3619 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3620 MERGER, EXTRACTOR, TABLE_INDEX) \ 3621 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 3622 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3623 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 3624 MERGER, TABLE_INDEX) 3625 #include "clang/Driver/Options.inc" 3626 #undef LANG_OPTION_WITH_MARSHALLING 3627 3628 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3629 StringRef Name = A->getValue(); 3630 if (Name == "full" || Name == "branch") { 3631 Opts.CFProtectionBranch = 1; 3632 } 3633 } 3634 3635 3636 if (auto *A = Args.getLastArg(OPT_cuid_EQ)) { 3637 Opts.CUID = std::string(A->getValue()); 3638 } 3639 3640 if (Opts.ObjC) { 3641 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3642 StringRef value = arg->getValue(); 3643 if (Opts.ObjCRuntime.tryParse(value)) 3644 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3645 } 3646 3647 if (Args.hasArg(OPT_fobjc_gc_only)) 3648 Opts.setGC(LangOptions::GCOnly); 3649 else if (Args.hasArg(OPT_fobjc_gc)) 3650 Opts.setGC(LangOptions::HybridGC); 3651 else if (Args.hasArg(OPT_fobjc_arc)) { 3652 Opts.ObjCAutoRefCount = 1; 3653 if (!Opts.ObjCRuntime.allowsARC()) 3654 Diags.Report(diag::err_arc_unsupported_on_runtime); 3655 } 3656 3657 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3658 // whether the feature is actually enabled. This is predominantly 3659 // determined by -fobjc-runtime, but we allow it to be overridden 3660 // from the command line for testing purposes. 3661 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3662 Opts.ObjCWeakRuntime = 1; 3663 else 3664 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3665 3666 // ObjCWeak determines whether __weak is actually enabled. 3667 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3668 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3669 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3670 assert(!Opts.ObjCWeak); 3671 } else if (Opts.getGC() != LangOptions::NonGC) { 3672 Diags.Report(diag::err_objc_weak_with_gc); 3673 } else if (!Opts.ObjCWeakRuntime) { 3674 Diags.Report(diag::err_objc_weak_unsupported); 3675 } else { 3676 Opts.ObjCWeak = 1; 3677 } 3678 } else if (Opts.ObjCAutoRefCount) { 3679 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3680 } 3681 3682 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3683 Opts.ObjCSubscriptingLegacyRuntime = 3684 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3685 } 3686 3687 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3688 // Check that the version has 1 to 3 components and the minor and patch 3689 // versions fit in two decimal digits. 3690 VersionTuple GNUCVer; 3691 bool Invalid = GNUCVer.tryParse(A->getValue()); 3692 unsigned Major = GNUCVer.getMajor(); 3693 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3694 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3695 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3696 Diags.Report(diag::err_drv_invalid_value) 3697 << A->getAsString(Args) << A->getValue(); 3698 } 3699 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3700 } 3701 3702 if (Args.hasArg(OPT_ftrapv)) { 3703 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3704 // Set the handler, if one is specified. 3705 Opts.OverflowHandler = 3706 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3707 } 3708 else if (Args.hasArg(OPT_fwrapv)) 3709 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3710 3711 Opts.MSCompatibilityVersion = 0; 3712 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3713 VersionTuple VT; 3714 if (VT.tryParse(A->getValue())) 3715 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3716 << A->getValue(); 3717 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3718 VT.getMinor().getValueOr(0) * 100000 + 3719 VT.getSubminor().getValueOr(0); 3720 } 3721 3722 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3723 // is specified, or -std is set to a conforming mode. 3724 // Trigraphs are disabled by default in c++1z onwards. 3725 // For z/OS, trigraphs are enabled by default (without regard to the above). 3726 Opts.Trigraphs = 3727 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3728 Opts.Trigraphs = 3729 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3730 3731 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3732 && Opts.OpenCLVersion == 200); 3733 3734 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3735 Opts.SYCLIsDevice || 3736 Args.hasArg(OPT_fconvergent_functions); 3737 3738 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3739 if (!Opts.NoBuiltin) 3740 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3741 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3742 ? 128 3743 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3744 if (Opts.FastRelaxedMath) 3745 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3746 llvm::sort(Opts.ModuleFeatures); 3747 3748 // -mrtd option 3749 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3750 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3751 Diags.Report(diag::err_drv_argument_not_allowed_with) 3752 << A->getSpelling() << "-fdefault-calling-conv"; 3753 else { 3754 if (T.getArch() != llvm::Triple::x86) 3755 Diags.Report(diag::err_drv_argument_not_allowed_with) 3756 << A->getSpelling() << T.getTriple(); 3757 else 3758 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3759 } 3760 } 3761 3762 // Check if -fopenmp is specified and set default version to 5.0. 3763 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3764 // Check if -fopenmp-simd is specified. 3765 bool IsSimdSpecified = 3766 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3767 /*Default=*/false); 3768 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3769 Opts.OpenMPUseTLS = 3770 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3771 Opts.OpenMPIsDevice = 3772 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3773 Opts.OpenMPIRBuilder = 3774 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3775 bool IsTargetSpecified = 3776 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3777 3778 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3779 3780 if (Opts.OpenMP || Opts.OpenMPSimd) { 3781 if (int Version = getLastArgIntValue( 3782 Args, OPT_fopenmp_version_EQ, 3783 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3784 Opts.OpenMP = Version; 3785 // Provide diagnostic when a given target is not expected to be an OpenMP 3786 // device or host. 3787 if (!Opts.OpenMPIsDevice) { 3788 switch (T.getArch()) { 3789 default: 3790 break; 3791 // Add unsupported host targets here: 3792 case llvm::Triple::nvptx: 3793 case llvm::Triple::nvptx64: 3794 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3795 break; 3796 } 3797 } 3798 } 3799 3800 // Set the flag to prevent the implementation from emitting device exception 3801 // handling code for those requiring so. 3802 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3803 Opts.OpenCLCPlusPlus) { 3804 Opts.Exceptions = 0; 3805 Opts.CXXExceptions = 0; 3806 } 3807 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3808 Opts.OpenMPCUDANumSMs = 3809 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3810 Opts.OpenMPCUDANumSMs, Diags); 3811 Opts.OpenMPCUDABlocksPerSM = 3812 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3813 Opts.OpenMPCUDABlocksPerSM, Diags); 3814 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3815 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3816 Opts.OpenMPCUDAReductionBufNum, Diags); 3817 } 3818 3819 // Get the OpenMP target triples if any. 3820 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3821 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3822 auto getArchPtrSize = [](const llvm::Triple &T) { 3823 if (T.isArch16Bit()) 3824 return Arch16Bit; 3825 if (T.isArch32Bit()) 3826 return Arch32Bit; 3827 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3828 return Arch64Bit; 3829 }; 3830 3831 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3832 llvm::Triple TT(A->getValue(i)); 3833 3834 if (TT.getArch() == llvm::Triple::UnknownArch || 3835 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3836 TT.getArch() == llvm::Triple::nvptx || 3837 TT.getArch() == llvm::Triple::nvptx64 || 3838 TT.getArch() == llvm::Triple::amdgcn || 3839 TT.getArch() == llvm::Triple::x86 || 3840 TT.getArch() == llvm::Triple::x86_64)) 3841 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3842 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3843 Diags.Report(diag::err_drv_incompatible_omp_arch) 3844 << A->getValue(i) << T.str(); 3845 else 3846 Opts.OMPTargetTriples.push_back(TT); 3847 } 3848 } 3849 3850 // Get OpenMP host file path if any and report if a non existent file is 3851 // found 3852 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3853 Opts.OMPHostIRFile = A->getValue(); 3854 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3855 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3856 << Opts.OMPHostIRFile; 3857 } 3858 3859 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3860 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3861 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3862 3863 // Set CUDA support for parallel execution of target regions for OpenMP target 3864 // NVPTX/AMDGCN if specified in options. 3865 Opts.OpenMPCUDATargetParallel = 3866 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3867 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 3868 3869 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3870 Opts.OpenMPCUDAForceFullRuntime = 3871 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3872 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3873 3874 // FIXME: Eliminate this dependency. 3875 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3876 OptSize = getOptimizationLevelSize(Args); 3877 Opts.Optimize = Opt != 0; 3878 Opts.OptimizeSize = OptSize != 0; 3879 3880 // This is the __NO_INLINE__ define, which just depends on things like the 3881 // optimization level and -fno-inline, not actually whether the backend has 3882 // inlining enabled. 3883 Opts.NoInlineDefine = !Opts.Optimize; 3884 if (Arg *InlineArg = Args.getLastArg( 3885 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3886 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3887 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3888 Opts.NoInlineDefine = true; 3889 3890 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3891 StringRef Val = A->getValue(); 3892 if (Val == "fast") 3893 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3894 else if (Val == "on") 3895 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3896 else if (Val == "off") 3897 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3898 else if (Val == "fast-honor-pragmas") 3899 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3900 else 3901 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3902 } 3903 3904 // Parse -fsanitize= arguments. 3905 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3906 Diags, Opts.Sanitize); 3907 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3908 std::vector<std::string> systemBlacklists = 3909 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3910 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3911 systemBlacklists.begin(), systemBlacklists.end()); 3912 3913 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3914 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3915 3916 StringRef Ver = A->getValue(); 3917 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3918 unsigned Major, Minor = 0; 3919 3920 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3921 // y or y.0 (4 <= y <= current version). 3922 if (!VerParts.first.startswith("0") && 3923 !VerParts.first.getAsInteger(10, Major) && 3924 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3925 (Major == 3 ? VerParts.second.size() == 1 && 3926 !VerParts.second.getAsInteger(10, Minor) 3927 : VerParts.first.size() == Ver.size() || 3928 VerParts.second == "0")) { 3929 // Got a valid version number. 3930 if (Major == 3 && Minor <= 8) 3931 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3932 else if (Major <= 4) 3933 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3934 else if (Major <= 6) 3935 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3936 else if (Major <= 7) 3937 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3938 else if (Major <= 9) 3939 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3940 else if (Major <= 11) 3941 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 3942 } else if (Ver != "latest") { 3943 Diags.Report(diag::err_drv_invalid_value) 3944 << A->getAsString(Args) << A->getValue(); 3945 } 3946 } 3947 3948 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3949 StringRef SignScope = A->getValue(); 3950 3951 if (SignScope.equals_lower("none")) 3952 Opts.setSignReturnAddressScope( 3953 LangOptions::SignReturnAddressScopeKind::None); 3954 else if (SignScope.equals_lower("all")) 3955 Opts.setSignReturnAddressScope( 3956 LangOptions::SignReturnAddressScopeKind::All); 3957 else if (SignScope.equals_lower("non-leaf")) 3958 Opts.setSignReturnAddressScope( 3959 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3960 else 3961 Diags.Report(diag::err_drv_invalid_value) 3962 << A->getAsString(Args) << SignScope; 3963 3964 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3965 StringRef SignKey = A->getValue(); 3966 if (!SignScope.empty() && !SignKey.empty()) { 3967 if (SignKey.equals_lower("a_key")) 3968 Opts.setSignReturnAddressKey( 3969 LangOptions::SignReturnAddressKeyKind::AKey); 3970 else if (SignKey.equals_lower("b_key")) 3971 Opts.setSignReturnAddressKey( 3972 LangOptions::SignReturnAddressKeyKind::BKey); 3973 else 3974 Diags.Report(diag::err_drv_invalid_value) 3975 << A->getAsString(Args) << SignKey; 3976 } 3977 } 3978 } 3979 3980 return Success && Diags.getNumErrors() == NumErrorsBefore; 3981 } 3982 3983 bool CompilerInvocation::ParseLangArgs(CompilerInvocation &Res, 3984 LangOptions &Opts, 3985 llvm::opt::ArgList &Args, InputKind IK, 3986 const llvm::Triple &T, 3987 std::vector<std::string> &Includes, 3988 DiagnosticsEngine &Diags) { 3989 return ParseLangArgsImpl(*Res.getLangOpts(), Args, IK, T, Includes, Diags); 3990 } 3991 3992 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3993 switch (Action) { 3994 case frontend::ASTDeclList: 3995 case frontend::ASTDump: 3996 case frontend::ASTPrint: 3997 case frontend::ASTView: 3998 case frontend::EmitAssembly: 3999 case frontend::EmitBC: 4000 case frontend::EmitHTML: 4001 case frontend::EmitLLVM: 4002 case frontend::EmitLLVMOnly: 4003 case frontend::EmitCodeGenOnly: 4004 case frontend::EmitObj: 4005 case frontend::FixIt: 4006 case frontend::GenerateModule: 4007 case frontend::GenerateModuleInterface: 4008 case frontend::GenerateHeaderModule: 4009 case frontend::GeneratePCH: 4010 case frontend::GenerateInterfaceStubs: 4011 case frontend::ParseSyntaxOnly: 4012 case frontend::ModuleFileInfo: 4013 case frontend::VerifyPCH: 4014 case frontend::PluginAction: 4015 case frontend::RewriteObjC: 4016 case frontend::RewriteTest: 4017 case frontend::RunAnalysis: 4018 case frontend::TemplightDump: 4019 case frontend::MigrateSource: 4020 return false; 4021 4022 case frontend::DumpCompilerOptions: 4023 case frontend::DumpRawTokens: 4024 case frontend::DumpTokens: 4025 case frontend::InitOnly: 4026 case frontend::PrintPreamble: 4027 case frontend::PrintPreprocessedInput: 4028 case frontend::RewriteMacros: 4029 case frontend::RunPreprocessorOnly: 4030 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4031 return true; 4032 } 4033 llvm_unreachable("invalid frontend action"); 4034 } 4035 4036 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4037 SmallVectorImpl<const char *> &Args, 4038 CompilerInvocation::StringAllocator SA, 4039 const LangOptions &LangOpts, 4040 const FrontendOptions &FrontendOpts, 4041 const CodeGenOptions &CodeGenOpts) { 4042 PreprocessorOptions *PreprocessorOpts = &Opts; 4043 4044 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4045 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4046 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4047 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4048 MERGER, EXTRACTOR, TABLE_INDEX) \ 4049 GENERATE_OPTION_WITH_MARSHALLING( \ 4050 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4051 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4052 #include "clang/Driver/Options.inc" 4053 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4054 4055 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4056 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4057 4058 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4059 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4060 4061 for (const auto &MP : Opts.MacroPrefixMap) 4062 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 4063 4064 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4065 GenerateArg(Args, OPT_preamble_bytes_EQ, 4066 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4067 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4068 SA); 4069 4070 for (const auto &M : Opts.Macros) { 4071 // Don't generate __CET__ macro definitions. They are implied by the 4072 // -fcf-protection option that is generated elsewhere. 4073 if (M.first == "__CET__=1" && !M.second && 4074 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4075 continue; 4076 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4077 !CodeGenOpts.CFProtectionBranch) 4078 continue; 4079 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4080 CodeGenOpts.CFProtectionBranch) 4081 continue; 4082 4083 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4084 } 4085 4086 for (const auto &I : Opts.Includes) { 4087 // Don't generate OpenCL includes. They are implied by other flags that are 4088 // generated elsewhere. 4089 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4090 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4091 I == "opencl-c.h")) 4092 continue; 4093 4094 GenerateArg(Args, OPT_include, I, SA); 4095 } 4096 4097 for (const auto &CI : Opts.ChainedIncludes) 4098 GenerateArg(Args, OPT_chain_include, CI, SA); 4099 4100 for (const auto &RF : Opts.RemappedFiles) 4101 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4102 4103 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4104 // generated elsewhere. 4105 } 4106 4107 static bool ParsePreprocessorArgsImpl(PreprocessorOptions &Opts, ArgList &Args, 4108 DiagnosticsEngine &Diags, 4109 frontend::ActionKind Action, 4110 const FrontendOptions &FrontendOpts) { 4111 PreprocessorOptions *PreprocessorOpts = &Opts; 4112 bool Success = true; 4113 4114 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4115 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4116 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4117 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4118 MERGER, EXTRACTOR, TABLE_INDEX) \ 4119 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4120 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4121 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4122 MERGER, TABLE_INDEX) 4123 #include "clang/Driver/Options.inc" 4124 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4125 4126 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4127 Args.hasArg(OPT_pch_through_hdrstop_use); 4128 4129 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4130 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4131 4132 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4133 auto Split = StringRef(A).split('='); 4134 Opts.MacroPrefixMap.insert( 4135 {std::string(Split.first), std::string(Split.second)}); 4136 } 4137 4138 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4139 StringRef Value(A->getValue()); 4140 size_t Comma = Value.find(','); 4141 unsigned Bytes = 0; 4142 unsigned EndOfLine = 0; 4143 4144 if (Comma == StringRef::npos || 4145 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4146 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4147 Diags.Report(diag::err_drv_preamble_format); 4148 else { 4149 Opts.PrecompiledPreambleBytes.first = Bytes; 4150 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4151 } 4152 } 4153 4154 // Add the __CET__ macro if a CFProtection option is set. 4155 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4156 StringRef Name = A->getValue(); 4157 if (Name == "branch") 4158 Opts.addMacroDef("__CET__=1"); 4159 else if (Name == "return") 4160 Opts.addMacroDef("__CET__=2"); 4161 else if (Name == "full") 4162 Opts.addMacroDef("__CET__=3"); 4163 } 4164 4165 // Add macros from the command line. 4166 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4167 if (A->getOption().matches(OPT_D)) 4168 Opts.addMacroDef(A->getValue()); 4169 else 4170 Opts.addMacroUndef(A->getValue()); 4171 } 4172 4173 // Add the ordered list of -includes. 4174 for (const auto *A : Args.filtered(OPT_include)) 4175 Opts.Includes.emplace_back(A->getValue()); 4176 4177 for (const auto *A : Args.filtered(OPT_chain_include)) 4178 Opts.ChainedIncludes.emplace_back(A->getValue()); 4179 4180 for (const auto *A : Args.filtered(OPT_remap_file)) { 4181 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4182 4183 if (Split.second.empty()) { 4184 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4185 continue; 4186 } 4187 4188 Opts.addRemappedFile(Split.first, Split.second); 4189 } 4190 4191 // Always avoid lexing editor placeholders when we're just running the 4192 // preprocessor as we never want to emit the 4193 // "editor placeholder in source file" error in PP only mode. 4194 if (isStrictlyPreprocessorAction(Action)) 4195 Opts.LexEditorPlaceholders = false; 4196 4197 return Success; 4198 } 4199 4200 static bool ParsePreprocessorArgs(CompilerInvocation &Res, 4201 PreprocessorOptions &Opts, ArgList &Args, 4202 DiagnosticsEngine &Diags, 4203 frontend::ActionKind Action, 4204 FrontendOptions &FrontendOpts) { 4205 return ParsePreprocessorArgsImpl(Res.getPreprocessorOpts(), Args, Diags, 4206 Action, Res.getFrontendOpts()); 4207 } 4208 4209 static void GeneratePreprocessorOutputArgs( 4210 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4211 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4212 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4213 4214 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4215 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4216 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4217 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4218 MERGER, EXTRACTOR, TABLE_INDEX) \ 4219 GENERATE_OPTION_WITH_MARSHALLING( \ 4220 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4221 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4222 #include "clang/Driver/Options.inc" 4223 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4224 4225 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4226 if (Generate_dM) 4227 GenerateArg(Args, OPT_dM, SA); 4228 if (!Generate_dM && Opts.ShowMacros) 4229 GenerateArg(Args, OPT_dD, SA); 4230 } 4231 4232 static bool ParsePreprocessorOutputArgsImpl(PreprocessorOutputOptions &Opts, 4233 ArgList &Args, 4234 DiagnosticsEngine &Diags, 4235 frontend::ActionKind Action) { 4236 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4237 unsigned NumErrorsBefore = Diags.getNumErrors(); 4238 bool Success = true; 4239 4240 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4241 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4242 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4243 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4244 MERGER, EXTRACTOR, TABLE_INDEX) \ 4245 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4246 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4247 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4248 MERGER, TABLE_INDEX) 4249 #include "clang/Driver/Options.inc" 4250 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4251 4252 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4253 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4254 4255 return Success && Diags.getNumErrors() == NumErrorsBefore; 4256 } 4257 4258 static bool ParsePreprocessorOutputArgs(CompilerInvocation &Res, 4259 PreprocessorOutputOptions &Opts, 4260 ArgList &Args, DiagnosticsEngine &Diags, 4261 frontend::ActionKind Action) { 4262 return ParsePreprocessorOutputArgsImpl(Res.getPreprocessorOutputOpts(), Args, 4263 Diags, Action); 4264 } 4265 4266 static void GenerateTargetArgs(const TargetOptions &Opts, 4267 SmallVectorImpl<const char *> &Args, 4268 CompilerInvocation::StringAllocator SA) { 4269 const TargetOptions *TargetOpts = &Opts; 4270 #define TARGET_OPTION_WITH_MARSHALLING( \ 4271 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4272 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4273 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4274 MERGER, EXTRACTOR, TABLE_INDEX) \ 4275 GENERATE_OPTION_WITH_MARSHALLING( \ 4276 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4277 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4278 #include "clang/Driver/Options.inc" 4279 #undef TARGET_OPTION_WITH_MARSHALLING 4280 4281 if (!Opts.SDKVersion.empty()) 4282 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4283 SA); 4284 } 4285 4286 static bool ParseTargetArgsImpl(TargetOptions &Opts, ArgList &Args, 4287 DiagnosticsEngine &Diags) { 4288 TargetOptions *TargetOpts = &Opts; 4289 unsigned NumErrorsBefore = Diags.getNumErrors(); 4290 bool Success = true; 4291 4292 #define TARGET_OPTION_WITH_MARSHALLING( \ 4293 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4294 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4295 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4296 MERGER, EXTRACTOR, TABLE_INDEX) \ 4297 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4298 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4299 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4300 MERGER, TABLE_INDEX) 4301 #include "clang/Driver/Options.inc" 4302 #undef TARGET_OPTION_WITH_MARSHALLING 4303 4304 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4305 llvm::VersionTuple Version; 4306 if (Version.tryParse(A->getValue())) 4307 Diags.Report(diag::err_drv_invalid_value) 4308 << A->getAsString(Args) << A->getValue(); 4309 else 4310 Opts.SDKVersion = Version; 4311 } 4312 4313 return Success && Diags.getNumErrors() == NumErrorsBefore; 4314 } 4315 4316 static bool ParseTargetArgs(CompilerInvocation &Res, TargetOptions &Opts, 4317 ArgList &Args, DiagnosticsEngine &Diags) { 4318 return ParseTargetArgsImpl(Res.getTargetOpts(), Args, Diags); 4319 } 4320 4321 bool CompilerInvocation::CreateFromArgsImpl( 4322 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4323 DiagnosticsEngine &Diags, const char *Argv0) { 4324 bool Success = true; 4325 4326 // Parse the arguments. 4327 const OptTable &Opts = getDriverOptTable(); 4328 const unsigned IncludedFlagsBitmask = options::CC1Option; 4329 unsigned MissingArgIndex, MissingArgCount; 4330 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4331 MissingArgCount, IncludedFlagsBitmask); 4332 LangOptions &LangOpts = *Res.getLangOpts(); 4333 4334 // Check for missing argument error. 4335 if (MissingArgCount) { 4336 Diags.Report(diag::err_drv_missing_argument) 4337 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4338 Success = false; 4339 } 4340 4341 // Issue errors on unknown arguments. 4342 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4343 auto ArgString = A->getAsString(Args); 4344 std::string Nearest; 4345 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4346 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4347 else 4348 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4349 << ArgString << Nearest; 4350 Success = false; 4351 } 4352 4353 Success &= ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4354 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4355 Success &= ParseAnalyzerArgs(Res, *Res.getAnalyzerOpts(), Args, Diags); 4356 Success &= 4357 ParseDiagnosticArgsRoundTrip(Res, Res.getDiagnosticOpts(), Args, &Diags, 4358 /*DefaultDiagColor=*/false); 4359 Success &= ParseFrontendArgs(Res, Res.getFrontendOpts(), Args, Diags, 4360 LangOpts.IsHeaderFile); 4361 // FIXME: We shouldn't have to pass the DashX option around here 4362 InputKind DashX = Res.getFrontendOpts().DashX; 4363 Success &= ParseTargetArgs(Res, Res.getTargetOpts(), Args, Diags); 4364 llvm::Triple T(Res.getTargetOpts().Triple); 4365 ParseHeaderSearchArgs(Res, Res.getHeaderSearchOpts(), Args, Diags, 4366 Res.getFileSystemOpts().WorkingDir); 4367 if (DashX.getFormat() == InputKind::Precompiled || 4368 DashX.getLanguage() == Language::LLVM_IR) { 4369 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 4370 // PassManager in BackendUtil.cpp. They need to be initializd no matter 4371 // what the input type is. 4372 if (Args.hasArg(OPT_fobjc_arc)) 4373 LangOpts.ObjCAutoRefCount = 1; 4374 // PIClevel and PIELevel are needed during code generation and this should be 4375 // set regardless of the input type. 4376 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 4377 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 4378 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4379 Diags, LangOpts.Sanitize); 4380 } else { 4381 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 4382 // FIXME: Should we really be calling this for an Language::Asm input? 4383 Success &= ParseLangArgs(Res, LangOpts, Args, DashX, T, 4384 Res.getPreprocessorOpts().Includes, Diags); 4385 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4386 LangOpts.ObjCExceptions = 1; 4387 } 4388 4389 if (LangOpts.CUDA) { 4390 // During CUDA device-side compilation, the aux triple is the 4391 // triple used for host compilation. 4392 if (LangOpts.CUDAIsDevice) 4393 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4394 } 4395 4396 // Set the triple of the host for OpenMP device compile. 4397 if (LangOpts.OpenMPIsDevice) 4398 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4399 4400 Success &= ParseCodeGenArgs(Res, Res.getCodeGenOpts(), Args, DashX, Diags, T, 4401 Res.getFrontendOpts().OutputFile, LangOpts); 4402 4403 // FIXME: Override value name discarding when asan or msan is used because the 4404 // backend passes depend on the name of the alloca in order to print out 4405 // names. 4406 Res.getCodeGenOpts().DiscardValueNames &= 4407 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4408 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4409 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4410 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4411 4412 ParsePreprocessorArgs(Res, Res.getPreprocessorOpts(), Args, Diags, 4413 Res.getFrontendOpts().ProgramAction, 4414 Res.getFrontendOpts()); 4415 ParsePreprocessorOutputArgs(Res, Res.getPreprocessorOutputOpts(), Args, Diags, 4416 Res.getFrontendOpts().ProgramAction); 4417 4418 ParseDependencyOutputArgs(Res, Res.getDependencyOutputOpts(), Args, Diags, 4419 Res.getFrontendOpts().ProgramAction, 4420 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4421 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4422 Res.getDependencyOutputOpts().Targets.empty()) { 4423 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4424 Success = false; 4425 } 4426 4427 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4428 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4429 !Res.getLangOpts()->Sanitize.empty()) { 4430 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4431 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4432 } 4433 4434 // Store the command-line for using in the CodeView backend. 4435 Res.getCodeGenOpts().Argv0 = Argv0; 4436 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 4437 4438 Success &= FixupInvocation(Res, Diags, Args, DashX); 4439 4440 return Success; 4441 } 4442 4443 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4444 ArrayRef<const char *> CommandLineArgs, 4445 DiagnosticsEngine &Diags, 4446 const char *Argv0) { 4447 CompilerInvocation DummyInvocation; 4448 4449 return RoundTrip( 4450 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4451 DiagnosticsEngine &Diags, const char *Argv0) { 4452 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4453 }, 4454 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4455 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4456 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4457 } 4458 4459 std::string CompilerInvocation::getModuleHash() const { 4460 // Note: For QoI reasons, the things we use as a hash here should all be 4461 // dumped via the -module-info flag. 4462 using llvm::hash_code; 4463 using llvm::hash_value; 4464 using llvm::hash_combine; 4465 using llvm::hash_combine_range; 4466 4467 // Start the signature with the compiler version. 4468 // FIXME: We'd rather use something more cryptographically sound than 4469 // CityHash, but this will do for now. 4470 hash_code code = hash_value(getClangFullRepositoryVersion()); 4471 4472 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4473 // and getClangFullRepositoryVersion() doesn't include git revision. 4474 code = hash_combine(code, serialization::VERSION_MAJOR, 4475 serialization::VERSION_MINOR); 4476 4477 // Extend the signature with the language options 4478 #define LANGOPT(Name, Bits, Default, Description) \ 4479 code = hash_combine(code, LangOpts->Name); 4480 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4481 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 4482 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4483 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4484 #include "clang/Basic/LangOptions.def" 4485 4486 for (StringRef Feature : LangOpts->ModuleFeatures) 4487 code = hash_combine(code, Feature); 4488 4489 code = hash_combine(code, LangOpts->ObjCRuntime); 4490 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 4491 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 4492 4493 // Extend the signature with the target options. 4494 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 4495 TargetOpts->TuneCPU, TargetOpts->ABI); 4496 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 4497 code = hash_combine(code, FeatureAsWritten); 4498 4499 // Extend the signature with preprocessor options. 4500 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4501 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4502 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 4503 4504 for (const auto &I : getPreprocessorOpts().Macros) { 4505 // If we're supposed to ignore this macro for the purposes of modules, 4506 // don't put it into the hash. 4507 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4508 // Check whether we're ignoring this macro. 4509 StringRef MacroDef = I.first; 4510 if (hsOpts.ModulesIgnoreMacros.count( 4511 llvm::CachedHashString(MacroDef.split('=').first))) 4512 continue; 4513 } 4514 4515 code = hash_combine(code, I.first, I.second); 4516 } 4517 4518 // Extend the signature with the sysroot and other header search options. 4519 code = hash_combine(code, hsOpts.Sysroot, 4520 hsOpts.ModuleFormat, 4521 hsOpts.UseDebugInfo, 4522 hsOpts.UseBuiltinIncludes, 4523 hsOpts.UseStandardSystemIncludes, 4524 hsOpts.UseStandardCXXIncludes, 4525 hsOpts.UseLibcxx, 4526 hsOpts.ModulesValidateDiagnosticOptions); 4527 code = hash_combine(code, hsOpts.ResourceDir); 4528 4529 if (hsOpts.ModulesStrictContextHash) { 4530 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 4531 hsOpts.SystemHeaderPrefixes.end()); 4532 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 4533 hsOpts.UserEntries.end()); 4534 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 4535 hsOpts.UserEntries.size(), UEC); 4536 4537 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4538 #define DIAGOPT(Name, Bits, Default) \ 4539 code = hash_combine(code, diagOpts.Name); 4540 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4541 code = hash_combine(code, diagOpts.get##Name()); 4542 #include "clang/Basic/DiagnosticOptions.def" 4543 #undef DIAGOPT 4544 #undef ENUM_DIAGOPT 4545 } 4546 4547 // Extend the signature with the user build path. 4548 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 4549 4550 // Extend the signature with the module file extensions. 4551 const FrontendOptions &frontendOpts = getFrontendOpts(); 4552 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 4553 code = ext->hashExtension(code); 4554 } 4555 4556 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4557 // affects the debug info in the PCM. 4558 if (getCodeGenOpts().DebugTypeExtRefs) 4559 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 4560 code = hash_combine(code, KeyValue.first, KeyValue.second); 4561 4562 // Extend the signature with the enabled sanitizers, if at least one is 4563 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4564 SanitizerSet SanHash = LangOpts->Sanitize; 4565 SanHash.clear(getPPTransparentSanitizers()); 4566 if (!SanHash.empty()) 4567 code = hash_combine(code, SanHash.Mask); 4568 4569 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 4570 } 4571 4572 void CompilerInvocation::generateCC1CommandLine( 4573 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4574 llvm::Triple T(TargetOpts->Triple); 4575 4576 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4577 GenerateMigratorArgs(MigratorOpts, Args, SA); 4578 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4579 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4580 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4581 GenerateTargetArgs(*TargetOpts, Args, SA); 4582 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4583 4584 InputKind DashX = FrontendOpts.DashX; 4585 if (DashX.getFormat() == InputKind::Precompiled || 4586 DashX.getLanguage() == Language::LLVM_IR) { 4587 if (LangOpts->ObjCAutoRefCount) 4588 GenerateArg(Args, OPT_fobjc_arc, SA); 4589 if (LangOpts->PICLevel != 0) 4590 GenerateArg(Args, OPT_pic_level, Twine(LangOpts->PICLevel), SA); 4591 if (LangOpts->PIE) 4592 GenerateArg(Args, OPT_pic_is_pie, SA); 4593 for (StringRef Sanitizer : serializeSanitizerKinds(LangOpts->Sanitize)) 4594 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 4595 } else { 4596 // FIXME: Move this whole condition into GenerateLangArgs. (And do the same 4597 // for ParseLangArgs). 4598 GenerateLangArgs(*LangOpts, Args, SA, T); 4599 } 4600 4601 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4602 &*LangOpts); 4603 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4604 CodeGenOpts); 4605 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4606 FrontendOpts.ProgramAction); 4607 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4608 } 4609 4610 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4611 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4612 DiagnosticsEngine &Diags) { 4613 return createVFSFromCompilerInvocation(CI, Diags, 4614 llvm::vfs::getRealFileSystem()); 4615 } 4616 4617 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4618 clang::createVFSFromCompilerInvocation( 4619 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4620 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4621 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4622 return BaseFS; 4623 4624 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4625 // earlier vfs files are on the bottom 4626 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4627 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4628 Result->getBufferForFile(File); 4629 if (!Buffer) { 4630 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4631 continue; 4632 } 4633 4634 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4635 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4636 /*DiagContext*/ nullptr, Result); 4637 if (!FS) { 4638 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4639 continue; 4640 } 4641 4642 Result = FS; 4643 } 4644 return Result; 4645 } 4646