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 CompilerInvocationRefBase::CompilerInvocationRefBase() 113 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 114 DiagnosticOpts(new DiagnosticOptions()), 115 HeaderSearchOpts(new HeaderSearchOptions()), 116 PreprocessorOpts(new PreprocessorOptions()), 117 AnalyzerOpts(new AnalyzerOptions()) {} 118 119 CompilerInvocationRefBase::CompilerInvocationRefBase( 120 const CompilerInvocationRefBase &X) 121 : LangOpts(new LangOptions(*X.getLangOpts())), 122 TargetOpts(new TargetOptions(X.getTargetOpts())), 123 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 124 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 125 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 126 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 127 128 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 129 130 //===----------------------------------------------------------------------===// 131 // Normalizers 132 //===----------------------------------------------------------------------===// 133 134 #define SIMPLE_ENUM_VALUE_TABLE 135 #include "clang/Driver/Options.inc" 136 #undef SIMPLE_ENUM_VALUE_TABLE 137 138 static llvm::Optional<bool> 139 normalizeSimpleFlag(OptSpecifier Opt, unsigned TableIndex, const ArgList &Args, 140 DiagnosticsEngine &Diags, bool &Success) { 141 if (Args.hasArg(Opt)) 142 return true; 143 return None; 144 } 145 146 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 147 const ArgList &Args, 148 DiagnosticsEngine &, 149 bool &Success) { 150 if (Args.hasArg(Opt)) 151 return false; 152 return None; 153 } 154 155 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 156 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 157 /// unnecessary template instantiations and just ignore it with a variadic 158 /// argument. 159 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 160 const char *Spelling, 161 CompilerInvocation::StringAllocator, 162 Option::OptionClass, unsigned, /*T*/...) { 163 Args.push_back(Spelling); 164 } 165 166 template <typename T> static constexpr bool is_uint64_t_convertible() { 167 return !std::is_same<T, uint64_t>::value && 168 llvm::is_integral_or_enum<T>::value; 169 } 170 171 template <typename T, 172 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 173 static auto makeFlagToValueNormalizer(T Value) { 174 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 175 DiagnosticsEngine &, bool &Success) -> Optional<T> { 176 if (Args.hasArg(Opt)) 177 return Value; 178 return None; 179 }; 180 } 181 182 template <typename T, 183 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 184 static auto makeFlagToValueNormalizer(T Value) { 185 return makeFlagToValueNormalizer(uint64_t(Value)); 186 } 187 188 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 189 OptSpecifier OtherOpt) { 190 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 191 const ArgList &Args, DiagnosticsEngine &, 192 bool &Success) -> Optional<bool> { 193 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 194 return A->getOption().matches(Opt) ? Value : OtherValue; 195 } 196 return None; 197 }; 198 } 199 200 static auto makeBooleanOptionDenormalizer(bool Value) { 201 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 202 CompilerInvocation::StringAllocator, Option::OptionClass, 203 unsigned, bool KeyPath) { 204 if (KeyPath == Value) 205 Args.push_back(Spelling); 206 }; 207 } 208 209 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 210 const char *Spelling, 211 CompilerInvocation::StringAllocator SA, 212 Option::OptionClass OptClass, unsigned, 213 const Twine &Value) { 214 switch (OptClass) { 215 case Option::SeparateClass: 216 case Option::JoinedOrSeparateClass: 217 case Option::JoinedAndSeparateClass: 218 Args.push_back(Spelling); 219 Args.push_back(SA(Value)); 220 break; 221 case Option::JoinedClass: 222 case Option::CommaJoinedClass: 223 Args.push_back(SA(Twine(Spelling) + Value)); 224 break; 225 default: 226 llvm_unreachable("Cannot denormalize an option with option class " 227 "incompatible with string denormalization."); 228 } 229 } 230 231 template <typename T> 232 static void 233 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 234 CompilerInvocation::StringAllocator SA, 235 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 236 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 237 } 238 239 static Optional<SimpleEnumValue> 240 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 241 for (int I = 0, E = Table.Size; I != E; ++I) 242 if (Name == Table.Table[I].Name) 243 return Table.Table[I]; 244 245 return None; 246 } 247 248 static Optional<SimpleEnumValue> 249 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 250 for (int I = 0, E = Table.Size; I != E; ++I) 251 if (Value == Table.Table[I].Value) 252 return Table.Table[I]; 253 254 return None; 255 } 256 257 static llvm::Optional<unsigned> 258 normalizeSimpleEnum(OptSpecifier Opt, unsigned TableIndex, const ArgList &Args, 259 DiagnosticsEngine &Diags, bool &Success) { 260 assert(TableIndex < SimpleEnumValueTablesSize); 261 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 262 263 auto *Arg = Args.getLastArg(Opt); 264 if (!Arg) 265 return None; 266 267 StringRef ArgValue = Arg->getValue(); 268 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 269 return MaybeEnumVal->Value; 270 271 Success = false; 272 Diags.Report(diag::err_drv_invalid_value) 273 << Arg->getAsString(Args) << ArgValue; 274 return None; 275 } 276 277 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 278 const char *Spelling, 279 CompilerInvocation::StringAllocator SA, 280 Option::OptionClass OptClass, 281 unsigned TableIndex, unsigned Value) { 282 assert(TableIndex < SimpleEnumValueTablesSize); 283 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 284 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 285 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 286 MaybeEnumVal->Name); 287 } else { 288 llvm_unreachable("The simple enum value was not correctly defined in " 289 "the tablegen option description"); 290 } 291 } 292 293 template <typename T> 294 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 295 const char *Spelling, 296 CompilerInvocation::StringAllocator SA, 297 Option::OptionClass OptClass, 298 unsigned TableIndex, T Value) { 299 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 300 static_cast<unsigned>(Value)); 301 } 302 303 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 304 const ArgList &Args, 305 DiagnosticsEngine &Diags, 306 bool &Success) { 307 auto *Arg = Args.getLastArg(Opt); 308 if (!Arg) 309 return None; 310 return std::string(Arg->getValue()); 311 } 312 313 template <typename IntTy> 314 static Optional<IntTy> 315 normalizeStringIntegral(OptSpecifier Opt, int, const ArgList &Args, 316 DiagnosticsEngine &Diags, bool &Success) { 317 auto *Arg = Args.getLastArg(Opt); 318 if (!Arg) 319 return None; 320 IntTy Res; 321 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 322 Success = false; 323 Diags.Report(diag::err_drv_invalid_int_value) 324 << Arg->getAsString(Args) << Arg->getValue(); 325 return None; 326 } 327 return Res; 328 } 329 330 static Optional<std::vector<std::string>> 331 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 332 DiagnosticsEngine &, bool &Success) { 333 return Args.getAllArgValues(Opt); 334 } 335 336 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 337 const char *Spelling, 338 CompilerInvocation::StringAllocator SA, 339 Option::OptionClass OptClass, 340 unsigned TableIndex, 341 const std::vector<std::string> &Values) { 342 switch (OptClass) { 343 case Option::CommaJoinedClass: { 344 std::string CommaJoinedValue; 345 if (!Values.empty()) { 346 CommaJoinedValue.append(Values.front()); 347 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 348 CommaJoinedValue.append(","); 349 CommaJoinedValue.append(Value); 350 } 351 } 352 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 353 TableIndex, CommaJoinedValue); 354 break; 355 } 356 case Option::JoinedClass: 357 case Option::SeparateClass: 358 case Option::JoinedOrSeparateClass: 359 for (const std::string &Value : Values) 360 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 361 break; 362 default: 363 llvm_unreachable("Cannot denormalize an option with option class " 364 "incompatible with string vector denormalization."); 365 } 366 } 367 368 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 369 const ArgList &Args, 370 DiagnosticsEngine &Diags, 371 bool &Success) { 372 auto *Arg = Args.getLastArg(Opt); 373 if (!Arg) 374 return None; 375 return llvm::Triple::normalize(Arg->getValue()); 376 } 377 378 template <typename T, typename U> 379 static T mergeForwardValue(T KeyPath, U Value) { 380 return static_cast<T>(Value); 381 } 382 383 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 384 return KeyPath | Value; 385 } 386 387 template <typename T> static T extractForwardValue(T KeyPath) { 388 return KeyPath; 389 } 390 391 template <typename T, typename U, U Value> 392 static T extractMaskValue(T KeyPath) { 393 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 394 } 395 396 #define PARSE_OPTION_WITH_MARSHALLING(ARGS, DIAGS, SUCCESS, ID, FLAGS, PARAM, \ 397 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 398 IMPLIED_CHECK, IMPLIED_VALUE, \ 399 NORMALIZER, MERGER, TABLE_INDEX) \ 400 if ((FLAGS)&options::CC1Option) { \ 401 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 402 if (IMPLIED_CHECK) \ 403 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 404 if (SHOULD_PARSE) \ 405 if (auto MaybeValue = \ 406 NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS, SUCCESS)) \ 407 KEYPATH = \ 408 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 409 } 410 411 // Capture the extracted value as a lambda argument to avoid potential issues 412 // with lifetime extension of the reference. 413 #define GENERATE_OPTION_WITH_MARSHALLING( \ 414 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 415 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 416 TABLE_INDEX) \ 417 if ((FLAGS)&options::CC1Option) { \ 418 [&](const auto &Extracted) { \ 419 if (ALWAYS_EMIT || \ 420 (Extracted != \ 421 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 422 : (DEFAULT_VALUE)))) \ 423 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 424 TABLE_INDEX, Extracted); \ 425 }(EXTRACTOR(KEYPATH)); \ 426 } 427 428 static const StringRef GetInputKindName(InputKind IK); 429 430 static bool FixupInvocation(CompilerInvocation &Invocation, 431 DiagnosticsEngine &Diags, const ArgList &Args, 432 InputKind IK) { 433 unsigned NumErrorsBefore = Diags.getNumErrors(); 434 435 LangOptions &LangOpts = *Invocation.getLangOpts(); 436 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 437 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 438 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 439 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 440 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 441 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 442 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 443 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 444 445 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 446 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 447 LangOpts.CurrentModule = LangOpts.ModuleName; 448 449 llvm::Triple T(TargetOpts.Triple); 450 llvm::Triple::ArchType Arch = T.getArch(); 451 452 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 453 454 if (LangOpts.getExceptionHandling() != llvm::ExceptionHandling::None && 455 T.isWindowsMSVCEnvironment()) 456 Diags.Report(diag::err_fe_invalid_exception_model) 457 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 458 459 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 460 Diags.Report(diag::warn_c_kext); 461 462 if (Args.hasArg(OPT_fconcepts_ts)) 463 Diags.Report(diag::warn_fe_concepts_ts_flag); 464 465 if (LangOpts.NewAlignOverride && 466 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 467 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 468 Diags.Report(diag::err_fe_invalid_alignment) 469 << A->getAsString(Args) << A->getValue(); 470 LangOpts.NewAlignOverride = 0; 471 } 472 473 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 474 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 475 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 476 << "-fsycl-is-host"; 477 478 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 479 Diags.Report(diag::err_drv_argument_not_allowed_with) 480 << "-fgnu89-inline" << GetInputKindName(IK); 481 482 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 483 Diags.Report(diag::warn_ignored_hip_only_option) 484 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 485 486 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 487 Diags.Report(diag::warn_ignored_hip_only_option) 488 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 489 490 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 491 // This option should be deprecated for CL > 1.0 because 492 // this option was added for compatibility with OpenCL 1.0. 493 if (Args.getLastArg(OPT_cl_strict_aliasing) && LangOpts.OpenCLVersion > 100) 494 Diags.Report(diag::warn_option_invalid_ocl_version) 495 << LangOpts.getOpenCLVersionTuple().getAsString() 496 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 497 498 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 499 auto DefaultCC = LangOpts.getDefaultCallingConv(); 500 501 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 502 DefaultCC == LangOptions::DCC_StdCall) && 503 Arch != llvm::Triple::x86; 504 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 505 DefaultCC == LangOptions::DCC_RegCall) && 506 !T.isX86(); 507 if (emitError) 508 Diags.Report(diag::err_drv_argument_not_allowed_with) 509 << A->getSpelling() << T.getTriple(); 510 } 511 512 if (!CodeGenOpts.ProfileRemappingFile.empty() && CodeGenOpts.LegacyPassManager) 513 Diags.Report(diag::err_drv_argument_only_allowed_with) 514 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 515 << "-fno-legacy-pass-manager"; 516 517 return Diags.getNumErrors() == NumErrorsBefore; 518 } 519 520 //===----------------------------------------------------------------------===// 521 // Deserialization (from args) 522 //===----------------------------------------------------------------------===// 523 524 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 525 DiagnosticsEngine &Diags) { 526 unsigned DefaultOpt = llvm::CodeGenOpt::None; 527 if ((IK.getLanguage() == Language::OpenCL || 528 IK.getLanguage() == Language::OpenCLCXX) && 529 !Args.hasArg(OPT_cl_opt_disable)) 530 DefaultOpt = llvm::CodeGenOpt::Default; 531 532 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 533 if (A->getOption().matches(options::OPT_O0)) 534 return llvm::CodeGenOpt::None; 535 536 if (A->getOption().matches(options::OPT_Ofast)) 537 return llvm::CodeGenOpt::Aggressive; 538 539 assert(A->getOption().matches(options::OPT_O)); 540 541 StringRef S(A->getValue()); 542 if (S == "s" || S == "z") 543 return llvm::CodeGenOpt::Default; 544 545 if (S == "g") 546 return llvm::CodeGenOpt::Less; 547 548 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 549 } 550 551 return DefaultOpt; 552 } 553 554 static unsigned getOptimizationLevelSize(ArgList &Args) { 555 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 556 if (A->getOption().matches(options::OPT_O)) { 557 switch (A->getValue()[0]) { 558 default: 559 return 0; 560 case 's': 561 return 1; 562 case 'z': 563 return 2; 564 } 565 } 566 } 567 return 0; 568 } 569 570 static void GenerateArg(SmallVectorImpl<const char *> &Args, 571 llvm::opt::OptSpecifier OptSpecifier, 572 CompilerInvocation::StringAllocator SA) { 573 Option Opt = getDriverOptTable().getOption(OptSpecifier); 574 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 575 Option::OptionClass::FlagClass, 0); 576 } 577 578 static void GenerateArg(SmallVectorImpl<const char *> &Args, 579 llvm::opt::OptSpecifier OptSpecifier, 580 const Twine &Value, 581 CompilerInvocation::StringAllocator SA) { 582 Option Opt = getDriverOptTable().getOption(OptSpecifier); 583 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 584 Opt.getKind(), 0, Value); 585 } 586 587 // Parse command line arguments into CompilerInvocation. 588 using ParseFn = 589 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 590 DiagnosticsEngine &, const char *)>; 591 592 // Generate command line arguments from CompilerInvocation. 593 using GenerateFn = llvm::function_ref<void( 594 CompilerInvocation &, SmallVectorImpl<const char *> &, 595 CompilerInvocation::StringAllocator)>; 596 597 // May perform round-trip of command line arguments. By default, the round-trip 598 // is enabled if CLANG_ROUND_TRIP_CC1_ARGS was defined during build. This can be 599 // overwritten at run-time via the "-round-trip-args" and "-no-round-trip-args" 600 // command line flags. 601 // During round-trip, the command line arguments are parsed into a dummy 602 // instance of CompilerInvocation which is used to generate the command line 603 // arguments again. The real CompilerInvocation instance is then created by 604 // parsing the generated arguments, not the original ones. 605 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 606 CompilerInvocation &RealInvocation, 607 CompilerInvocation &DummyInvocation, 608 ArrayRef<const char *> CommandLineArgs, 609 DiagnosticsEngine &Diags, const char *Argv0) { 610 // FIXME: Switch to '#ifndef NDEBUG' when possible. 611 #ifdef CLANG_ROUND_TRIP_CC1_ARGS 612 bool DoRoundTripDefault = true; 613 #else 614 bool DoRoundTripDefault = false; 615 #endif 616 617 bool DoRoundTrip = DoRoundTripDefault; 618 for (const auto *Arg : CommandLineArgs) { 619 if (Arg == StringRef("-round-trip-args")) 620 DoRoundTrip = true; 621 if (Arg == StringRef("-no-round-trip-args")) 622 DoRoundTrip = false; 623 } 624 625 // If round-trip was not requested, simply run the parser with the real 626 // invocation diagnostics. 627 if (!DoRoundTrip) 628 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 629 630 // Serializes quoted (and potentially escaped) arguments. 631 auto SerializeArgs = [](ArrayRef<const char *> Args) { 632 std::string Buffer; 633 llvm::raw_string_ostream OS(Buffer); 634 for (const char *Arg : Args) { 635 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 636 OS << ' '; 637 } 638 OS.flush(); 639 return Buffer; 640 }; 641 642 // Setup a dummy DiagnosticsEngine. 643 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 644 DummyDiags.setClient(new TextDiagnosticBuffer()); 645 646 // Run the first parse on the original arguments with the dummy invocation and 647 // diagnostics. 648 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 649 DummyDiags.getNumWarnings() != 0) { 650 // If the first parse did not succeed, it must be user mistake (invalid 651 // command line arguments). We won't be able to generate arguments that 652 // would reproduce the same result. Let's fail again with the real 653 // invocation and diagnostics, so all side-effects of parsing are visible. 654 unsigned NumWarningsBefore = Diags.getNumWarnings(); 655 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 656 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 657 return Success; 658 659 // Parse with original options and diagnostics succeeded even though it 660 // shouldn't have. Something is off. 661 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 662 Diags.Report(diag::note_cc1_round_trip_original) 663 << SerializeArgs(CommandLineArgs); 664 return false; 665 } 666 667 // Setup string allocator. 668 llvm::BumpPtrAllocator Alloc; 669 llvm::StringSaver StringPool(Alloc); 670 auto SA = [&StringPool](const Twine &Arg) { 671 return StringPool.save(Arg).data(); 672 }; 673 674 // Generate arguments from the dummy invocation. If Generate is the 675 // inverse of Parse, the newly generated arguments must have the same 676 // semantics as the original. 677 SmallVector<const char *> GeneratedArgs1; 678 Generate(DummyInvocation, GeneratedArgs1, SA); 679 680 // Run the second parse, now on the generated arguments, and with the real 681 // invocation and diagnostics. The result is what we will end up using for the 682 // rest of compilation, so if Generate is not inverse of Parse, something down 683 // the line will break. 684 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 685 686 // The first parse on original arguments succeeded, but second parse of 687 // generated arguments failed. Something must be wrong with the generator. 688 if (!Success2) { 689 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 690 Diags.Report(diag::note_cc1_round_trip_generated) 691 << 1 << SerializeArgs(GeneratedArgs1); 692 return false; 693 } 694 695 // Generate arguments again, this time from the options we will end up using 696 // for the rest of the compilation. 697 SmallVector<const char *> GeneratedArgs2; 698 Generate(RealInvocation, GeneratedArgs2, SA); 699 700 // Compares two lists of generated arguments. 701 auto Equal = [](const ArrayRef<const char *> A, 702 const ArrayRef<const char *> B) { 703 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 704 [](const char *AElem, const char *BElem) { 705 return StringRef(AElem) == StringRef(BElem); 706 }); 707 }; 708 709 // If we generated different arguments from what we assume are two 710 // semantically equivalent CompilerInvocations, the Generate function may 711 // be non-deterministic. 712 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 713 Diags.Report(diag::err_cc1_round_trip_mismatch); 714 Diags.Report(diag::note_cc1_round_trip_generated) 715 << 1 << SerializeArgs(GeneratedArgs1); 716 Diags.Report(diag::note_cc1_round_trip_generated) 717 << 2 << SerializeArgs(GeneratedArgs2); 718 return false; 719 } 720 721 Diags.Report(diag::remark_cc1_round_trip_generated) 722 << 1 << SerializeArgs(GeneratedArgs1); 723 Diags.Report(diag::remark_cc1_round_trip_generated) 724 << 2 << SerializeArgs(GeneratedArgs2); 725 726 return Success2; 727 } 728 729 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 730 OptSpecifier GroupWithValue, 731 std::vector<std::string> &Diagnostics) { 732 for (auto *A : Args.filtered(Group)) { 733 if (A->getOption().getKind() == Option::FlagClass) { 734 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 735 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 736 Diagnostics.push_back( 737 std::string(A->getOption().getName().drop_front(1))); 738 } else if (A->getOption().matches(GroupWithValue)) { 739 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 740 // group. Add only the group name to the diagnostics. 741 Diagnostics.push_back( 742 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 743 } else { 744 // Otherwise, add its value (for OPT_W_Joined and similar). 745 Diagnostics.push_back(A->getValue()); 746 } 747 } 748 } 749 750 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 751 // it won't verify the input. 752 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 753 DiagnosticsEngine *Diags); 754 755 static void getAllNoBuiltinFuncValues(ArgList &Args, 756 std::vector<std::string> &Funcs) { 757 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 758 auto BuiltinEnd = llvm::partition(Values, [](const std::string FuncName) { 759 return Builtin::Context::isBuiltinFunc(FuncName); 760 }); 761 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 762 } 763 764 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 765 SmallVectorImpl<const char *> &Args, 766 CompilerInvocation::StringAllocator SA) { 767 const AnalyzerOptions *AnalyzerOpts = &Opts; 768 769 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 770 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 771 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 772 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 773 MERGER, EXTRACTOR, TABLE_INDEX) \ 774 GENERATE_OPTION_WITH_MARSHALLING( \ 775 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 776 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 777 #include "clang/Driver/Options.inc" 778 #undef ANALYZER_OPTION_WITH_MARSHALLING 779 780 if (Opts.AnalysisStoreOpt != RegionStoreModel) { 781 switch (Opts.AnalysisStoreOpt) { 782 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 783 case NAME##Model: \ 784 GenerateArg(Args, OPT_analyzer_store, CMDFLAG, SA); \ 785 break; 786 #include "clang/StaticAnalyzer/Core/Analyses.def" 787 default: 788 llvm_unreachable("Tried to generate unknown analysis store."); 789 } 790 } 791 792 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 793 switch (Opts.AnalysisConstraintsOpt) { 794 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 795 case NAME##Model: \ 796 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 797 break; 798 #include "clang/StaticAnalyzer/Core/Analyses.def" 799 default: 800 llvm_unreachable("Tried to generate unknown analysis constraint."); 801 } 802 } 803 804 if (Opts.AnalysisDiagOpt != PD_HTML) { 805 switch (Opts.AnalysisDiagOpt) { 806 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 807 case PD_##NAME: \ 808 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 809 break; 810 #include "clang/StaticAnalyzer/Core/Analyses.def" 811 default: 812 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 813 } 814 } 815 816 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 817 switch (Opts.AnalysisPurgeOpt) { 818 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 819 case NAME: \ 820 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 821 break; 822 #include "clang/StaticAnalyzer/Core/Analyses.def" 823 default: 824 llvm_unreachable("Tried to generate unknown analysis purge mode."); 825 } 826 } 827 828 if (Opts.InliningMode != NoRedundancy) { 829 switch (Opts.InliningMode) { 830 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 831 case NAME: \ 832 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 833 break; 834 #include "clang/StaticAnalyzer/Core/Analyses.def" 835 default: 836 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 837 } 838 } 839 840 for (const auto &CP : Opts.CheckersAndPackages) { 841 OptSpecifier Opt = 842 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 843 GenerateArg(Args, Opt, CP.first, SA); 844 } 845 846 AnalyzerOptions ConfigOpts; 847 parseAnalyzerConfigs(ConfigOpts, nullptr); 848 849 for (const auto &C : Opts.Config) { 850 // Don't generate anything that came from parseAnalyzerConfigs. It would be 851 // redundant and may not be valid on the command line. 852 auto Entry = ConfigOpts.Config.find(C.getKey()); 853 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 854 continue; 855 856 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 857 } 858 859 // Nothing to generate for FullCompilerInvocation. 860 } 861 862 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 863 DiagnosticsEngine &Diags) { 864 AnalyzerOptions *AnalyzerOpts = &Opts; 865 bool Success = true; 866 867 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 868 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 869 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 870 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 871 MERGER, EXTRACTOR, TABLE_INDEX) \ 872 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 873 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 874 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 875 MERGER, TABLE_INDEX) 876 #include "clang/Driver/Options.inc" 877 #undef ANALYZER_OPTION_WITH_MARSHALLING 878 879 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 880 StringRef Name = A->getValue(); 881 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 882 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 883 .Case(CMDFLAG, NAME##Model) 884 #include "clang/StaticAnalyzer/Core/Analyses.def" 885 .Default(NumStores); 886 if (Value == NumStores) { 887 Diags.Report(diag::err_drv_invalid_value) 888 << A->getAsString(Args) << Name; 889 Success = false; 890 } else { 891 Opts.AnalysisStoreOpt = Value; 892 } 893 } 894 895 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 896 StringRef Name = A->getValue(); 897 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 898 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 899 .Case(CMDFLAG, NAME##Model) 900 #include "clang/StaticAnalyzer/Core/Analyses.def" 901 .Default(NumConstraints); 902 if (Value == NumConstraints) { 903 Diags.Report(diag::err_drv_invalid_value) 904 << A->getAsString(Args) << Name; 905 Success = false; 906 } else { 907 Opts.AnalysisConstraintsOpt = Value; 908 } 909 } 910 911 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 912 StringRef Name = A->getValue(); 913 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 914 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 915 .Case(CMDFLAG, PD_##NAME) 916 #include "clang/StaticAnalyzer/Core/Analyses.def" 917 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 918 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 919 Diags.Report(diag::err_drv_invalid_value) 920 << A->getAsString(Args) << Name; 921 Success = false; 922 } else { 923 Opts.AnalysisDiagOpt = Value; 924 } 925 } 926 927 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 928 StringRef Name = A->getValue(); 929 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 930 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 931 .Case(CMDFLAG, NAME) 932 #include "clang/StaticAnalyzer/Core/Analyses.def" 933 .Default(NumPurgeModes); 934 if (Value == NumPurgeModes) { 935 Diags.Report(diag::err_drv_invalid_value) 936 << A->getAsString(Args) << Name; 937 Success = false; 938 } else { 939 Opts.AnalysisPurgeOpt = Value; 940 } 941 } 942 943 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 944 StringRef Name = A->getValue(); 945 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 946 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 947 .Case(CMDFLAG, NAME) 948 #include "clang/StaticAnalyzer/Core/Analyses.def" 949 .Default(NumInliningModes); 950 if (Value == NumInliningModes) { 951 Diags.Report(diag::err_drv_invalid_value) 952 << A->getAsString(Args) << Name; 953 Success = false; 954 } else { 955 Opts.InliningMode = Value; 956 } 957 } 958 959 Opts.CheckersAndPackages.clear(); 960 for (const Arg *A : 961 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 962 A->claim(); 963 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 964 // We can have a list of comma separated checker names, e.g: 965 // '-analyzer-checker=cocoa,unix' 966 StringRef CheckerAndPackageList = A->getValue(); 967 SmallVector<StringRef, 16> CheckersAndPackages; 968 CheckerAndPackageList.split(CheckersAndPackages, ","); 969 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 970 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 971 IsEnabled); 972 } 973 974 // Go through the analyzer configuration options. 975 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 976 977 // We can have a list of comma separated config names, e.g: 978 // '-analyzer-config key1=val1,key2=val2' 979 StringRef configList = A->getValue(); 980 SmallVector<StringRef, 4> configVals; 981 configList.split(configVals, ","); 982 for (const auto &configVal : configVals) { 983 StringRef key, val; 984 std::tie(key, val) = configVal.split("="); 985 if (val.empty()) { 986 Diags.Report(SourceLocation(), 987 diag::err_analyzer_config_no_value) << configVal; 988 Success = false; 989 break; 990 } 991 if (val.find('=') != StringRef::npos) { 992 Diags.Report(SourceLocation(), 993 diag::err_analyzer_config_multiple_values) 994 << configVal; 995 Success = false; 996 break; 997 } 998 999 // TODO: Check checker options too, possibly in CheckerRegistry. 1000 // Leave unknown non-checker configs unclaimed. 1001 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1002 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) { 1003 Diags.Report(diag::err_analyzer_config_unknown) << key; 1004 Success = false; 1005 } 1006 continue; 1007 } 1008 1009 A->claim(); 1010 Opts.Config[key] = std::string(val); 1011 } 1012 } 1013 1014 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1015 parseAnalyzerConfigs(Opts, &Diags); 1016 else 1017 parseAnalyzerConfigs(Opts, nullptr); 1018 1019 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1020 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1021 if (i != 0) 1022 os << " "; 1023 os << Args.getArgString(i); 1024 } 1025 os.flush(); 1026 1027 return Success; 1028 } 1029 1030 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1031 StringRef OptionName, StringRef DefaultVal) { 1032 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1033 } 1034 1035 static void initOption(AnalyzerOptions::ConfigTable &Config, 1036 DiagnosticsEngine *Diags, 1037 StringRef &OptionField, StringRef Name, 1038 StringRef DefaultVal) { 1039 // String options may be known to invalid (e.g. if the expected string is a 1040 // file name, but the file does not exist), those will have to be checked in 1041 // parseConfigs. 1042 OptionField = getStringOption(Config, Name, DefaultVal); 1043 } 1044 1045 static void initOption(AnalyzerOptions::ConfigTable &Config, 1046 DiagnosticsEngine *Diags, 1047 bool &OptionField, StringRef Name, bool DefaultVal) { 1048 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1049 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1050 .Case("true", true) 1051 .Case("false", false) 1052 .Default(None); 1053 1054 if (!PossiblyInvalidVal) { 1055 if (Diags) 1056 Diags->Report(diag::err_analyzer_config_invalid_input) 1057 << Name << "a boolean"; 1058 else 1059 OptionField = DefaultVal; 1060 } else 1061 OptionField = PossiblyInvalidVal.getValue(); 1062 } 1063 1064 static void initOption(AnalyzerOptions::ConfigTable &Config, 1065 DiagnosticsEngine *Diags, 1066 unsigned &OptionField, StringRef Name, 1067 unsigned DefaultVal) { 1068 1069 OptionField = DefaultVal; 1070 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1071 .getAsInteger(0, OptionField); 1072 if (Diags && HasFailed) 1073 Diags->Report(diag::err_analyzer_config_invalid_input) 1074 << Name << "an unsigned"; 1075 } 1076 1077 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1078 DiagnosticsEngine *Diags) { 1079 // TODO: There's no need to store the entire configtable, it'd be plenty 1080 // enough tostore checker options. 1081 1082 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1083 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1084 1085 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1086 SHALLOW_VAL, DEEP_VAL) \ 1087 switch (AnOpts.getUserMode()) { \ 1088 case UMK_Shallow: \ 1089 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 1090 break; \ 1091 case UMK_Deep: \ 1092 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 1093 break; \ 1094 } \ 1095 1096 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1097 #undef ANALYZER_OPTION 1098 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 1099 1100 // At this point, AnalyzerOptions is configured. Let's validate some options. 1101 1102 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1103 // The current approach only validates the registered checkers which does not 1104 // contain the runtime enabled checkers and optimally we would validate both. 1105 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1106 std::vector<StringRef> Checkers = 1107 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1108 std::vector<StringRef> Packages = 1109 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1110 1111 SmallVector<StringRef, 16> CheckersAndPackages; 1112 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1113 1114 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1115 if (Diags) { 1116 bool IsChecker = CheckerOrPackage.contains('.'); 1117 bool IsValidName = 1118 IsChecker 1119 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 1120 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 1121 1122 if (!IsValidName) 1123 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1124 << CheckerOrPackage; 1125 } 1126 1127 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1128 } 1129 } 1130 1131 if (!Diags) 1132 return; 1133 1134 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1135 Diags->Report(diag::err_analyzer_config_invalid_input) 1136 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1137 1138 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1139 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1140 << "a filename"; 1141 1142 if (!AnOpts.ModelPath.empty() && 1143 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1144 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1145 << "a filename"; 1146 } 1147 1148 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1149 static void 1150 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1151 CompilerInvocation::StringAllocator SA, 1152 OptSpecifier OptEQ, StringRef Name, 1153 const CodeGenOptions::OptRemark &Remark) { 1154 if (Remark.hasValidPattern()) { 1155 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1156 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1157 GenerateArg(Args, OPT_R_Joined, Name, SA); 1158 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1159 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1160 } 1161 } 1162 1163 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1164 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1165 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1166 static CodeGenOptions::OptRemark 1167 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1168 OptSpecifier OptEQ, StringRef Name) { 1169 CodeGenOptions::OptRemark Result; 1170 1171 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A) { 1172 Result.Pattern = A->getValue(); 1173 1174 std::string RegexError; 1175 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1176 if (!Result.Regex->isValid(RegexError)) { 1177 Diags.Report(diag::err_drv_optimization_remark_pattern) 1178 << RegexError << A->getAsString(Args); 1179 return false; 1180 } 1181 1182 return true; 1183 }; 1184 1185 for (Arg *A : Args) { 1186 if (A->getOption().matches(OPT_R_Joined)) { 1187 StringRef Value = A->getValue(); 1188 1189 if (Value == Name) 1190 Result.Kind = CodeGenOptions::RK_Enabled; 1191 else if (Value == "everything") 1192 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1193 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1194 Result.Kind = CodeGenOptions::RK_Disabled; 1195 else if (Value == "no-everything") 1196 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1197 } else if (A->getOption().matches(OptEQ)) { 1198 Result.Kind = CodeGenOptions::RK_WithPattern; 1199 if (!InitializeResultPattern(A)) 1200 return CodeGenOptions::OptRemark(); 1201 } 1202 } 1203 1204 if (Result.Kind == CodeGenOptions::RK_Disabled || 1205 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1206 Result.Pattern = ""; 1207 Result.Regex = nullptr; 1208 } 1209 1210 return Result; 1211 } 1212 1213 static bool parseDiagnosticLevelMask(StringRef FlagName, 1214 const std::vector<std::string> &Levels, 1215 DiagnosticsEngine &Diags, 1216 DiagnosticLevelMask &M) { 1217 bool Success = true; 1218 for (const auto &Level : Levels) { 1219 DiagnosticLevelMask const PM = 1220 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1221 .Case("note", DiagnosticLevelMask::Note) 1222 .Case("remark", DiagnosticLevelMask::Remark) 1223 .Case("warning", DiagnosticLevelMask::Warning) 1224 .Case("error", DiagnosticLevelMask::Error) 1225 .Default(DiagnosticLevelMask::None); 1226 if (PM == DiagnosticLevelMask::None) { 1227 Success = false; 1228 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1229 } 1230 M = M | PM; 1231 } 1232 return Success; 1233 } 1234 1235 static void parseSanitizerKinds(StringRef FlagName, 1236 const std::vector<std::string> &Sanitizers, 1237 DiagnosticsEngine &Diags, SanitizerSet &S) { 1238 for (const auto &Sanitizer : Sanitizers) { 1239 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1240 if (K == SanitizerMask()) 1241 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1242 else 1243 S.set(K, true); 1244 } 1245 } 1246 1247 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1248 SmallVector<StringRef, 4> Values; 1249 serializeSanitizerSet(S, Values); 1250 return Values; 1251 } 1252 1253 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1254 ArgList &Args, DiagnosticsEngine &D, 1255 XRayInstrSet &S) { 1256 llvm::SmallVector<StringRef, 2> BundleParts; 1257 llvm::SplitString(Bundle, BundleParts, ","); 1258 for (const auto &B : BundleParts) { 1259 auto Mask = parseXRayInstrValue(B); 1260 if (Mask == XRayInstrKind::None) 1261 if (B != "none") 1262 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1263 else 1264 S.Mask = Mask; 1265 else if (Mask == XRayInstrKind::All) 1266 S.Mask = Mask; 1267 else 1268 S.set(Mask, true); 1269 } 1270 } 1271 1272 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1273 llvm::SmallVector<StringRef, 2> BundleParts; 1274 serializeXRayInstrValue(S, BundleParts); 1275 std::string Buffer; 1276 llvm::raw_string_ostream OS(Buffer); 1277 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1278 return OS.str(); 1279 } 1280 1281 // Set the profile kind using fprofile-instrument-use-path. 1282 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1283 const Twine &ProfileName) { 1284 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1285 // In error, return silently and let Clang PGOUse report the error message. 1286 if (auto E = ReaderOrErr.takeError()) { 1287 llvm::consumeError(std::move(E)); 1288 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1289 return; 1290 } 1291 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1292 std::move(ReaderOrErr.get()); 1293 if (PGOReader->isIRLevelProfile()) { 1294 if (PGOReader->hasCSIRLevelProfile()) 1295 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1296 else 1297 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1298 } else 1299 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1300 } 1301 1302 void CompilerInvocation::GenerateCodeGenArgs( 1303 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1304 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1305 const LangOptions *LangOpts) { 1306 const CodeGenOptions &CodeGenOpts = Opts; 1307 1308 if (Opts.OptimizationLevel == 0) 1309 GenerateArg(Args, OPT_O0, SA); 1310 else 1311 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1312 1313 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1314 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1315 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1316 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1317 MERGER, EXTRACTOR, TABLE_INDEX) \ 1318 GENERATE_OPTION_WITH_MARSHALLING( \ 1319 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1320 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1321 #include "clang/Driver/Options.inc" 1322 #undef CODEGEN_OPTION_WITH_MARSHALLING 1323 1324 if (Opts.OptimizationLevel > 0) { 1325 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1326 GenerateArg(Args, OPT_finline_functions, SA); 1327 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1328 GenerateArg(Args, OPT_finline_hint_functions, SA); 1329 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1330 GenerateArg(Args, OPT_fno_inline, SA); 1331 } 1332 1333 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1334 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1335 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1336 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1337 1338 Optional<StringRef> DebugInfoVal; 1339 switch (Opts.DebugInfo) { 1340 case codegenoptions::DebugLineTablesOnly: 1341 DebugInfoVal = "line-tables-only"; 1342 break; 1343 case codegenoptions::DebugDirectivesOnly: 1344 DebugInfoVal = "line-directives-only"; 1345 break; 1346 case codegenoptions::DebugInfoConstructor: 1347 DebugInfoVal = "constructor"; 1348 break; 1349 case codegenoptions::LimitedDebugInfo: 1350 DebugInfoVal = "limited"; 1351 break; 1352 case codegenoptions::FullDebugInfo: 1353 DebugInfoVal = "standalone"; 1354 break; 1355 case codegenoptions::UnusedTypeInfo: 1356 DebugInfoVal = "unused-types"; 1357 break; 1358 case codegenoptions::NoDebugInfo: // default value 1359 DebugInfoVal = None; 1360 break; 1361 case codegenoptions::LocTrackingOnly: // implied value 1362 DebugInfoVal = None; 1363 break; 1364 } 1365 if (DebugInfoVal) 1366 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1367 1368 if (Opts.DebugInfo == codegenoptions::DebugInfoConstructor) 1369 GenerateArg(Args, OPT_fuse_ctor_homing, SA); 1370 1371 for (const auto &Prefix : Opts.DebugPrefixMap) 1372 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1373 Prefix.first + "=" + Prefix.second, SA); 1374 1375 for (const auto &Prefix : Opts.CoveragePrefixMap) 1376 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1377 Prefix.first + "=" + Prefix.second, SA); 1378 1379 if (Opts.NewStructPathTBAA) 1380 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1381 1382 if (Opts.OptimizeSize == 1) 1383 GenerateArg(Args, OPT_O, "s", SA); 1384 else if (Opts.OptimizeSize == 2) 1385 GenerateArg(Args, OPT_O, "z", SA); 1386 1387 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1388 // -ffreestanding. We'll consider that when generating them. 1389 1390 // NoBuiltinFuncs are generated by LangOptions. 1391 1392 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1393 GenerateArg(Args, OPT_funroll_loops, SA); 1394 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1395 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1396 1397 if (!Opts.BinutilsVersion.empty()) 1398 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1399 1400 if (Opts.DebugNameTable == 1401 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1402 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1403 else if (Opts.DebugNameTable == 1404 static_cast<unsigned>( 1405 llvm::DICompileUnit::DebugNameTableKind::Default)) 1406 GenerateArg(Args, OPT_gpubnames, SA); 1407 1408 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1409 // it or PGOUseInstrumentor. 1410 1411 if (Opts.TimePasses) { 1412 if (Opts.TimePassesPerRun) 1413 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1414 else 1415 GenerateArg(Args, OPT_ftime_report, SA); 1416 } 1417 1418 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1419 GenerateArg(Args, OPT_flto, SA); 1420 1421 if (Opts.PrepareForThinLTO) 1422 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1423 1424 if (!Opts.ThinLTOIndexFile.empty()) 1425 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1426 1427 if (Opts.SaveTempsFilePrefix == OutputFile) 1428 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1429 1430 StringRef MemProfileBasename("memprof.profraw"); 1431 if (!Opts.MemoryProfileOutput.empty()) { 1432 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1433 GenerateArg(Args, OPT_fmemory_profile, SA); 1434 } else { 1435 size_t ArgLength = 1436 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1437 GenerateArg(Args, OPT_fmemory_profile_EQ, 1438 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1439 } 1440 } 1441 1442 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1443 GenerateArg(Args, OPT_coverage_version_EQ, 1444 StringRef(Opts.CoverageVersion, 4), SA); 1445 1446 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1447 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1448 // won't be generated.) 1449 1450 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1451 std::string InstrBundle = 1452 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1453 if (!InstrBundle.empty()) 1454 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1455 } 1456 1457 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1458 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1459 else if (Opts.CFProtectionReturn) 1460 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1461 else if (Opts.CFProtectionBranch) 1462 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1463 1464 for (const auto &F : Opts.LinkBitcodeFiles) { 1465 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1466 F.PropagateAttrs && F.Internalize; 1467 GenerateArg(Args, 1468 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1469 F.Filename, SA); 1470 } 1471 1472 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1473 // That would make it easy to generate the option only **once** if it was 1474 // explicitly set to non-default value. 1475 if (Opts.ExplicitEmulatedTLS) { 1476 GenerateArg( 1477 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1478 } 1479 1480 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1481 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1482 1483 if (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE()) 1484 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1485 SA); 1486 1487 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1488 OptSpecifier Opt = 1489 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1490 GenerateArg(Args, Opt, SA); 1491 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1492 OptSpecifier Opt = 1493 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1494 GenerateArg(Args, Opt, SA); 1495 } 1496 1497 if (Opts.EnableAIXExtendedAltivecABI) 1498 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1499 1500 if (!Opts.OptRecordPasses.empty()) 1501 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1502 1503 if (!Opts.OptRecordFormat.empty()) 1504 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1505 1506 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1507 Opts.OptimizationRemark); 1508 1509 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1510 Opts.OptimizationRemarkMissed); 1511 1512 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1513 Opts.OptimizationRemarkAnalysis); 1514 1515 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1516 Opts.DiagnosticsHotnessThreshold 1517 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1518 : "auto", 1519 SA); 1520 1521 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1522 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1523 1524 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1525 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1526 1527 if (!Opts.EmitVersionIdentMetadata) 1528 GenerateArg(Args, OPT_Qn, SA); 1529 1530 switch (Opts.FiniteLoops) { 1531 case CodeGenOptions::FiniteLoopsKind::Language: 1532 break; 1533 case CodeGenOptions::FiniteLoopsKind::Always: 1534 GenerateArg(Args, OPT_ffinite_loops, SA); 1535 break; 1536 case CodeGenOptions::FiniteLoopsKind::Never: 1537 GenerateArg(Args, OPT_fno_finite_loops, SA); 1538 break; 1539 } 1540 } 1541 1542 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1543 InputKind IK, 1544 DiagnosticsEngine &Diags, 1545 const llvm::Triple &T, 1546 const std::string &OutputFile, 1547 const LangOptions &LangOptsRef) { 1548 unsigned NumErrorsBefore = Diags.getNumErrors(); 1549 1550 bool Success = true; 1551 1552 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1553 // TODO: This could be done in Driver 1554 unsigned MaxOptLevel = 3; 1555 if (OptimizationLevel > MaxOptLevel) { 1556 // If the optimization level is not supported, fall back on the default 1557 // optimization 1558 Diags.Report(diag::warn_drv_optimization_value) 1559 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1560 OptimizationLevel = MaxOptLevel; 1561 } 1562 Opts.OptimizationLevel = OptimizationLevel; 1563 1564 // The key paths of codegen options defined in Options.td start with 1565 // "CodeGenOpts.". Let's provide the expected variable name and type. 1566 CodeGenOptions &CodeGenOpts = Opts; 1567 // Some codegen options depend on language options. Let's provide the expected 1568 // variable name and type. 1569 const LangOptions *LangOpts = &LangOptsRef; 1570 1571 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1572 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1573 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1574 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1575 MERGER, EXTRACTOR, TABLE_INDEX) \ 1576 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 1577 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1578 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 1579 MERGER, TABLE_INDEX) 1580 #include "clang/Driver/Options.inc" 1581 #undef CODEGEN_OPTION_WITH_MARSHALLING 1582 1583 // At O0 we want to fully disable inlining outside of cases marked with 1584 // 'alwaysinline' that are required for correctness. 1585 Opts.setInlining((Opts.OptimizationLevel == 0) 1586 ? CodeGenOptions::OnlyAlwaysInlining 1587 : CodeGenOptions::NormalInlining); 1588 // Explicit inlining flags can disable some or all inlining even at 1589 // optimization levels above zero. 1590 if (Arg *InlineArg = Args.getLastArg( 1591 options::OPT_finline_functions, options::OPT_finline_hint_functions, 1592 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 1593 if (Opts.OptimizationLevel > 0) { 1594 const Option &InlineOpt = InlineArg->getOption(); 1595 if (InlineOpt.matches(options::OPT_finline_functions)) 1596 Opts.setInlining(CodeGenOptions::NormalInlining); 1597 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 1598 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1599 else 1600 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1601 } 1602 } 1603 1604 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1605 // -fdirect-access-external-data. 1606 Opts.DirectAccessExternalData = 1607 Args.hasArg(OPT_fdirect_access_external_data) || 1608 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1609 LangOpts->PICLevel == 0); 1610 1611 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1612 unsigned Val = 1613 llvm::StringSwitch<unsigned>(A->getValue()) 1614 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1615 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1616 .Case("constructor", codegenoptions::DebugInfoConstructor) 1617 .Case("limited", codegenoptions::LimitedDebugInfo) 1618 .Case("standalone", codegenoptions::FullDebugInfo) 1619 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1620 .Default(~0U); 1621 if (Val == ~0U) 1622 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1623 << A->getValue(); 1624 else 1625 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1626 } 1627 1628 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1629 // constructor homing. 1630 if (Args.getLastArg(OPT_fuse_ctor_homing)) 1631 if (Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1632 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1633 1634 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1635 auto Split = StringRef(Arg).split('='); 1636 Opts.DebugPrefixMap.insert( 1637 {std::string(Split.first), std::string(Split.second)}); 1638 } 1639 1640 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1641 auto Split = StringRef(Arg).split('='); 1642 Opts.CoveragePrefixMap.insert( 1643 {std::string(Split.first), std::string(Split.second)}); 1644 } 1645 1646 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1647 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1648 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1649 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1650 1651 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1652 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1653 Opts.EmitCallSiteInfo = true; 1654 1655 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1656 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1657 << Opts.DIBugsReportFilePath; 1658 Opts.DIBugsReportFilePath = ""; 1659 } 1660 1661 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1662 Args.hasArg(OPT_new_struct_path_tbaa); 1663 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1664 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1665 if (Opts.SimplifyLibCalls) 1666 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1667 Opts.UnrollLoops = 1668 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1669 (Opts.OptimizationLevel > 1)); 1670 Opts.BinutilsVersion = 1671 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1672 1673 Opts.DebugNameTable = static_cast<unsigned>( 1674 Args.hasArg(OPT_ggnu_pubnames) 1675 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1676 : Args.hasArg(OPT_gpubnames) 1677 ? llvm::DICompileUnit::DebugNameTableKind::Default 1678 : llvm::DICompileUnit::DebugNameTableKind::None); 1679 1680 if (!Opts.ProfileInstrumentUsePath.empty()) 1681 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1682 1683 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1684 Opts.TimePasses = true; 1685 1686 // -ftime-report= is only for new pass manager. 1687 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1688 if (Opts.LegacyPassManager) 1689 Diags.Report(diag::err_drv_argument_only_allowed_with) 1690 << A->getAsString(Args) << "-fno-legacy-pass-manager"; 1691 1692 StringRef Val = A->getValue(); 1693 if (Val == "per-pass") 1694 Opts.TimePassesPerRun = false; 1695 else if (Val == "per-pass-run") 1696 Opts.TimePassesPerRun = true; 1697 else 1698 Diags.Report(diag::err_drv_invalid_value) 1699 << A->getAsString(Args) << A->getValue(); 1700 } 1701 } 1702 1703 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 1704 Opts.PrepareForThinLTO = false; 1705 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1706 StringRef S = A->getValue(); 1707 if (S == "thin") 1708 Opts.PrepareForThinLTO = true; 1709 else if (S != "full") 1710 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1711 } 1712 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1713 if (IK.getLanguage() != Language::LLVM_IR) 1714 Diags.Report(diag::err_drv_argument_only_allowed_with) 1715 << A->getAsString(Args) << "-x ir"; 1716 Opts.ThinLTOIndexFile = 1717 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1718 } 1719 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1720 Opts.SaveTempsFilePrefix = 1721 llvm::StringSwitch<std::string>(A->getValue()) 1722 .Case("obj", OutputFile) 1723 .Default(llvm::sys::path::filename(OutputFile).str()); 1724 1725 // The memory profile runtime appends the pid to make this name more unique. 1726 const char *MemProfileBasename = "memprof.profraw"; 1727 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1728 SmallString<128> Path( 1729 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1730 llvm::sys::path::append(Path, MemProfileBasename); 1731 Opts.MemoryProfileOutput = std::string(Path); 1732 } else if (Args.hasArg(OPT_fmemory_profile)) 1733 Opts.MemoryProfileOutput = MemProfileBasename; 1734 1735 memcpy(Opts.CoverageVersion, "408*", 4); 1736 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1737 if (Args.hasArg(OPT_coverage_version_EQ)) { 1738 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1739 if (CoverageVersion.size() != 4) { 1740 Diags.Report(diag::err_drv_invalid_value) 1741 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1742 << CoverageVersion; 1743 } else { 1744 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1745 } 1746 } 1747 } 1748 // FIXME: For backend options that are not yet recorded as function 1749 // attributes in the IR, keep track of them so we can embed them in a 1750 // separate data section and use them when building the bitcode. 1751 for (const auto &A : Args) { 1752 // Do not encode output and input. 1753 if (A->getOption().getID() == options::OPT_o || 1754 A->getOption().getID() == options::OPT_INPUT || 1755 A->getOption().getID() == options::OPT_x || 1756 A->getOption().getID() == options::OPT_fembed_bitcode || 1757 A->getOption().matches(options::OPT_W_Group)) 1758 continue; 1759 ArgStringList ASL; 1760 A->render(Args, ASL); 1761 for (const auto &arg : ASL) { 1762 StringRef ArgStr(arg); 1763 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1764 // using \00 to separate each commandline options. 1765 Opts.CmdArgs.push_back('\0'); 1766 } 1767 } 1768 1769 auto XRayInstrBundles = 1770 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1771 if (XRayInstrBundles.empty()) 1772 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1773 else 1774 for (const auto &A : XRayInstrBundles) 1775 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1776 Diags, Opts.XRayInstrumentationBundle); 1777 1778 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1779 StringRef Name = A->getValue(); 1780 if (Name == "full") { 1781 Opts.CFProtectionReturn = 1; 1782 Opts.CFProtectionBranch = 1; 1783 } else if (Name == "return") 1784 Opts.CFProtectionReturn = 1; 1785 else if (Name == "branch") 1786 Opts.CFProtectionBranch = 1; 1787 else if (Name != "none") { 1788 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1789 Success = false; 1790 } 1791 } 1792 1793 for (auto *A : 1794 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1795 CodeGenOptions::BitcodeFileToLink F; 1796 F.Filename = A->getValue(); 1797 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1798 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1799 // When linking CUDA bitcode, propagate function attributes so that 1800 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1801 F.PropagateAttrs = true; 1802 F.Internalize = true; 1803 } 1804 Opts.LinkBitcodeFiles.push_back(F); 1805 } 1806 1807 if (Args.getLastArg(OPT_femulated_tls) || 1808 Args.getLastArg(OPT_fno_emulated_tls)) { 1809 Opts.ExplicitEmulatedTLS = true; 1810 } 1811 1812 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1813 StringRef Val = A->getValue(); 1814 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1815 if (!Opts.FPDenormalMode.isValid()) 1816 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1817 } 1818 1819 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1820 StringRef Val = A->getValue(); 1821 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1822 if (!Opts.FP32DenormalMode.isValid()) 1823 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1824 } 1825 1826 // X86_32 has -fppc-struct-return and -freg-struct-return. 1827 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1828 if (Arg *A = 1829 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1830 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1831 // TODO: We might want to consider enabling these options on AIX in the 1832 // future. 1833 if (T.isOSAIX()) 1834 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1835 << A->getSpelling() << T.str(); 1836 1837 const Option &O = A->getOption(); 1838 if (O.matches(OPT_fpcc_struct_return) || 1839 O.matches(OPT_maix_struct_return)) { 1840 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1841 } else { 1842 assert(O.matches(OPT_freg_struct_return) || 1843 O.matches(OPT_msvr4_struct_return)); 1844 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1845 } 1846 } 1847 1848 if (Arg *A = 1849 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1850 if (!T.isOSAIX()) 1851 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1852 << A->getSpelling() << T.str(); 1853 1854 const Option &O = A->getOption(); 1855 if (O.matches(OPT_mabi_EQ_vec_default)) 1856 Diags.Report(diag::err_aix_default_altivec_abi) 1857 << A->getSpelling() << T.str(); 1858 else { 1859 assert(O.matches(OPT_mabi_EQ_vec_extabi)); 1860 Opts.EnableAIXExtendedAltivecABI = 1; 1861 } 1862 } 1863 1864 bool NeedLocTracking = false; 1865 1866 if (!Opts.OptRecordFile.empty()) 1867 NeedLocTracking = true; 1868 1869 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1870 Opts.OptRecordPasses = A->getValue(); 1871 NeedLocTracking = true; 1872 } 1873 1874 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1875 Opts.OptRecordFormat = A->getValue(); 1876 NeedLocTracking = true; 1877 } 1878 1879 Opts.OptimizationRemark = 1880 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1881 1882 Opts.OptimizationRemarkMissed = 1883 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1884 1885 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1886 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1887 1888 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1889 Opts.OptimizationRemarkMissed.hasValidPattern() || 1890 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1891 1892 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1893 bool UsingProfile = UsingSampleProfile || 1894 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1895 1896 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1897 // An IR file will contain PGO as metadata 1898 IK.getLanguage() != Language::LLVM_IR) 1899 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1900 << "-fdiagnostics-show-hotness"; 1901 1902 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1903 if (auto *arg = 1904 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1905 auto ResultOrErr = 1906 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1907 1908 if (!ResultOrErr) { 1909 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1910 << "-fdiagnostics-hotness-threshold="; 1911 } else { 1912 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1913 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1914 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1915 !UsingProfile) 1916 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1917 << "-fdiagnostics-hotness-threshold="; 1918 } 1919 } 1920 1921 // If the user requested to use a sample profile for PGO, then the 1922 // backend will need to track source location information so the profile 1923 // can be incorporated into the IR. 1924 if (UsingSampleProfile) 1925 NeedLocTracking = true; 1926 1927 // If the user requested a flag that requires source locations available in 1928 // the backend, make sure that the backend tracks source location information. 1929 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1930 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1931 1932 // Parse -fsanitize-recover= arguments. 1933 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1934 parseSanitizerKinds("-fsanitize-recover=", 1935 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1936 Opts.SanitizeRecover); 1937 parseSanitizerKinds("-fsanitize-trap=", 1938 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1939 Opts.SanitizeTrap); 1940 1941 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1942 1943 if (Args.hasArg(options::OPT_ffinite_loops)) 1944 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 1945 else if (Args.hasArg(options::OPT_fno_finite_loops)) 1946 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 1947 1948 return Success && Diags.getNumErrors() == NumErrorsBefore; 1949 } 1950 1951 static void 1952 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 1953 SmallVectorImpl<const char *> &Args, 1954 CompilerInvocation::StringAllocator SA) { 1955 const DependencyOutputOptions &DependencyOutputOpts = Opts; 1956 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1957 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1958 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1959 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1960 MERGER, EXTRACTOR, TABLE_INDEX) \ 1961 GENERATE_OPTION_WITH_MARSHALLING( \ 1962 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1963 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1964 #include "clang/Driver/Options.inc" 1965 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 1966 1967 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 1968 GenerateArg(Args, OPT_show_includes, SA); 1969 1970 for (const auto &Dep : Opts.ExtraDeps) { 1971 switch (Dep.second) { 1972 case EDK_SanitizeBlacklist: 1973 // Sanitizer blacklist arguments are generated from LanguageOptions. 1974 continue; 1975 case EDK_ModuleFile: 1976 // Module file arguments are generated from FrontendOptions and 1977 // HeaderSearchOptions. 1978 continue; 1979 case EDK_ProfileList: 1980 // Profile list arguments are generated from LanguageOptions via the 1981 // marshalling infrastructure. 1982 continue; 1983 case EDK_DepFileEntry: 1984 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 1985 break; 1986 } 1987 } 1988 } 1989 1990 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1991 ArgList &Args, DiagnosticsEngine &Diags, 1992 frontend::ActionKind Action, 1993 bool ShowLineMarkers) { 1994 unsigned NumErrorsBefore = Diags.getNumErrors(); 1995 bool Success = true; 1996 1997 DependencyOutputOptions &DependencyOutputOpts = Opts; 1998 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1999 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2000 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2001 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2002 MERGER, EXTRACTOR, TABLE_INDEX) \ 2003 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2004 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2005 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2006 MERGER, TABLE_INDEX) 2007 #include "clang/Driver/Options.inc" 2008 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2009 2010 if (Args.hasArg(OPT_show_includes)) { 2011 // Writing both /showIncludes and preprocessor output to stdout 2012 // would produce interleaved output, so use stderr for /showIncludes. 2013 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2014 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2015 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2016 else 2017 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2018 } else { 2019 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2020 } 2021 2022 // Add sanitizer blacklists as extra dependencies. 2023 // They won't be discovered by the regular preprocessor, so 2024 // we let make / ninja to know about this implicit dependency. 2025 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 2026 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 2027 StringRef Val = A->getValue(); 2028 if (Val.find('=') == StringRef::npos) 2029 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeBlacklist); 2030 } 2031 if (Opts.IncludeSystemHeaders) { 2032 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 2033 StringRef Val = A->getValue(); 2034 if (Val.find('=') == StringRef::npos) 2035 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeBlacklist); 2036 } 2037 } 2038 } 2039 2040 // -fprofile-list= dependencies. 2041 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2042 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2043 2044 // Propagate the extra dependencies. 2045 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2046 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2047 2048 // Only the -fmodule-file=<file> form. 2049 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2050 StringRef Val = A->getValue(); 2051 if (Val.find('=') == StringRef::npos) 2052 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2053 } 2054 2055 return Success && Diags.getNumErrors() == NumErrorsBefore; 2056 } 2057 2058 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2059 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2060 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2061 // Support both clang's -f[no-]color-diagnostics and gcc's 2062 // -f[no-]diagnostics-colors[=never|always|auto]. 2063 enum { 2064 Colors_On, 2065 Colors_Off, 2066 Colors_Auto 2067 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2068 for (auto *A : Args) { 2069 const Option &O = A->getOption(); 2070 if (O.matches(options::OPT_fcolor_diagnostics) || 2071 O.matches(options::OPT_fdiagnostics_color)) { 2072 ShowColors = Colors_On; 2073 } else if (O.matches(options::OPT_fno_color_diagnostics) || 2074 O.matches(options::OPT_fno_diagnostics_color)) { 2075 ShowColors = Colors_Off; 2076 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2077 StringRef Value(A->getValue()); 2078 if (Value == "always") 2079 ShowColors = Colors_On; 2080 else if (Value == "never") 2081 ShowColors = Colors_Off; 2082 else if (Value == "auto") 2083 ShowColors = Colors_Auto; 2084 } 2085 } 2086 return ShowColors == Colors_On || 2087 (ShowColors == Colors_Auto && 2088 llvm::sys::Process::StandardErrHasColors()); 2089 } 2090 2091 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2092 DiagnosticsEngine &Diags) { 2093 bool Success = true; 2094 for (const auto &Prefix : VerifyPrefixes) { 2095 // Every prefix must start with a letter and contain only alphanumeric 2096 // characters, hyphens, and underscores. 2097 auto BadChar = llvm::find_if(Prefix, [](char C) { 2098 return !isAlphanumeric(C) && C != '-' && C != '_'; 2099 }); 2100 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2101 Success = false; 2102 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2103 Diags.Report(diag::note_drv_verify_prefix_spelling); 2104 } 2105 } 2106 return Success; 2107 } 2108 2109 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2110 SmallVectorImpl<const char *> &Args, 2111 CompilerInvocation::StringAllocator SA) { 2112 const FileSystemOptions &FileSystemOpts = Opts; 2113 2114 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2115 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2116 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2117 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2118 MERGER, EXTRACTOR, TABLE_INDEX) \ 2119 GENERATE_OPTION_WITH_MARSHALLING( \ 2120 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2121 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2122 #include "clang/Driver/Options.inc" 2123 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2124 } 2125 2126 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2127 DiagnosticsEngine &Diags) { 2128 FileSystemOptions &FileSystemOpts = Opts; 2129 bool Success = true; 2130 2131 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2132 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2133 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2134 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2135 MERGER, EXTRACTOR, TABLE_INDEX) \ 2136 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2137 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2138 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2139 MERGER, TABLE_INDEX) 2140 #include "clang/Driver/Options.inc" 2141 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2142 2143 return Success; 2144 } 2145 2146 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2147 SmallVectorImpl<const char *> &Args, 2148 CompilerInvocation::StringAllocator SA) { 2149 const MigratorOptions &MigratorOpts = Opts; 2150 2151 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2152 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2153 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2154 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2155 MERGER, EXTRACTOR, TABLE_INDEX) \ 2156 GENERATE_OPTION_WITH_MARSHALLING( \ 2157 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2158 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2159 #include "clang/Driver/Options.inc" 2160 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2161 } 2162 2163 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2164 DiagnosticsEngine &Diags) { 2165 MigratorOptions &MigratorOpts = Opts; 2166 bool Success = true; 2167 2168 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2169 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2170 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2171 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2172 MERGER, EXTRACTOR, TABLE_INDEX) \ 2173 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2174 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2175 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2176 MERGER, TABLE_INDEX) 2177 #include "clang/Driver/Options.inc" 2178 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2179 2180 return Success; 2181 } 2182 2183 void CompilerInvocation::GenerateDiagnosticArgs( 2184 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2185 StringAllocator SA, bool DefaultDiagColor) { 2186 const DiagnosticOptions *DiagnosticOpts = &Opts; 2187 #define DIAG_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 GENERATE_OPTION_WITH_MARSHALLING( \ 2193 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2194 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2195 #include "clang/Driver/Options.inc" 2196 #undef DIAG_OPTION_WITH_MARSHALLING 2197 2198 if (!Opts.DiagnosticSerializationFile.empty()) 2199 GenerateArg(Args, OPT_diagnostic_serialized_file, 2200 Opts.DiagnosticSerializationFile, SA); 2201 2202 if (Opts.ShowColors) 2203 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2204 2205 if (Opts.VerifyDiagnostics && 2206 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2207 GenerateArg(Args, OPT_verify, SA); 2208 2209 for (const auto &Prefix : Opts.VerifyPrefixes) 2210 if (Prefix != "expected") 2211 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2212 2213 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2214 if (VIU == DiagnosticLevelMask::None) { 2215 // This is the default, don't generate anything. 2216 } else if (VIU == DiagnosticLevelMask::All) { 2217 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2218 } else { 2219 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2220 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2221 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2222 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2223 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2224 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2225 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2226 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2227 } 2228 2229 for (const auto &Warning : Opts.Warnings) { 2230 // This option is automatically generated from UndefPrefixes. 2231 if (Warning == "undef-prefix") 2232 continue; 2233 Args.push_back(SA(StringRef("-W") + Warning)); 2234 } 2235 2236 for (const auto &Remark : Opts.Remarks) { 2237 // These arguments are generated from OptimizationRemark fields of 2238 // CodeGenOptions. 2239 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2240 "pass-analysis", "no-pass-analysis", 2241 "pass-missed", "no-pass-missed"}; 2242 if (llvm::is_contained(IgnoredRemarks, Remark)) 2243 continue; 2244 2245 Args.push_back(SA(StringRef("-R") + Remark)); 2246 } 2247 } 2248 2249 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2250 DiagnosticsEngine *Diags, 2251 bool DefaultDiagColor) { 2252 Optional<DiagnosticsEngine> IgnoringDiags; 2253 if (!Diags) { 2254 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2255 new IgnoringDiagConsumer()); 2256 Diags = &*IgnoringDiags; 2257 } 2258 2259 // The key paths of diagnostic options defined in Options.td start with 2260 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2261 DiagnosticOptions *DiagnosticOpts = &Opts; 2262 bool Success = true; 2263 2264 #define DIAG_OPTION_WITH_MARSHALLING( \ 2265 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2266 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2267 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2268 MERGER, EXTRACTOR, TABLE_INDEX) \ 2269 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, Success, ID, FLAGS, PARAM, \ 2270 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2271 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2272 MERGER, TABLE_INDEX) 2273 #include "clang/Driver/Options.inc" 2274 #undef DIAG_OPTION_WITH_MARSHALLING 2275 2276 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2277 2278 if (Arg *A = 2279 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2280 Opts.DiagnosticSerializationFile = A->getValue(); 2281 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2282 2283 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2284 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2285 if (Args.hasArg(OPT_verify)) 2286 Opts.VerifyPrefixes.push_back("expected"); 2287 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2288 // then sort it to prepare for fast lookup using std::binary_search. 2289 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) { 2290 Opts.VerifyDiagnostics = false; 2291 Success = false; 2292 } 2293 else 2294 llvm::sort(Opts.VerifyPrefixes); 2295 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2296 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 2297 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 2298 *Diags, DiagMask); 2299 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2300 DiagMask = DiagnosticLevelMask::All; 2301 Opts.setVerifyIgnoreUnexpected(DiagMask); 2302 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2303 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2304 Diags->Report(diag::warn_ignoring_ftabstop_value) 2305 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2306 } 2307 2308 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2309 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2310 2311 return Success; 2312 } 2313 2314 /// Parse the argument to the -ftest-module-file-extension 2315 /// command-line argument. 2316 /// 2317 /// \returns true on error, false on success. 2318 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2319 std::string &BlockName, 2320 unsigned &MajorVersion, 2321 unsigned &MinorVersion, 2322 bool &Hashed, 2323 std::string &UserInfo) { 2324 SmallVector<StringRef, 5> Args; 2325 Arg.split(Args, ':', 5); 2326 if (Args.size() < 5) 2327 return true; 2328 2329 BlockName = std::string(Args[0]); 2330 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2331 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2332 if (Args[3].getAsInteger(2, Hashed)) return true; 2333 if (Args.size() > 4) 2334 UserInfo = std::string(Args[4]); 2335 return false; 2336 } 2337 2338 /// Return a table that associates command line option specifiers with the 2339 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2340 /// intentionally missing, as this case is handled separately from other 2341 /// frontend options. 2342 static const auto &getFrontendActionTable() { 2343 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2344 {frontend::ASTDeclList, OPT_ast_list}, 2345 2346 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2347 {frontend::ASTDump, OPT_ast_dump_all}, 2348 {frontend::ASTDump, OPT_ast_dump_EQ}, 2349 {frontend::ASTDump, OPT_ast_dump}, 2350 {frontend::ASTDump, OPT_ast_dump_lookups}, 2351 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2352 2353 {frontend::ASTPrint, OPT_ast_print}, 2354 {frontend::ASTView, OPT_ast_view}, 2355 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2356 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2357 {frontend::DumpTokens, OPT_dump_tokens}, 2358 {frontend::EmitAssembly, OPT_S}, 2359 {frontend::EmitBC, OPT_emit_llvm_bc}, 2360 {frontend::EmitHTML, OPT_emit_html}, 2361 {frontend::EmitLLVM, OPT_emit_llvm}, 2362 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2363 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2364 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2365 {frontend::EmitObj, OPT_emit_obj}, 2366 2367 {frontend::FixIt, OPT_fixit_EQ}, 2368 {frontend::FixIt, OPT_fixit}, 2369 2370 {frontend::GenerateModule, OPT_emit_module}, 2371 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2372 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2373 {frontend::GeneratePCH, OPT_emit_pch}, 2374 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2375 {frontend::InitOnly, OPT_init_only}, 2376 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2377 {frontend::ModuleFileInfo, OPT_module_file_info}, 2378 {frontend::VerifyPCH, OPT_verify_pch}, 2379 {frontend::PrintPreamble, OPT_print_preamble}, 2380 {frontend::PrintPreprocessedInput, OPT_E}, 2381 {frontend::TemplightDump, OPT_templight_dump}, 2382 {frontend::RewriteMacros, OPT_rewrite_macros}, 2383 {frontend::RewriteObjC, OPT_rewrite_objc}, 2384 {frontend::RewriteTest, OPT_rewrite_test}, 2385 {frontend::RunAnalysis, OPT_analyze}, 2386 {frontend::MigrateSource, OPT_migrate}, 2387 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2388 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2389 OPT_print_dependency_directives_minimized_source}, 2390 }; 2391 2392 return Table; 2393 } 2394 2395 /// Maps command line option to frontend action. 2396 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2397 for (const auto &ActionOpt : getFrontendActionTable()) 2398 if (ActionOpt.second == Opt.getID()) 2399 return ActionOpt.first; 2400 2401 return None; 2402 } 2403 2404 /// Maps frontend action to command line option. 2405 static Optional<OptSpecifier> 2406 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2407 for (const auto &ActionOpt : getFrontendActionTable()) 2408 if (ActionOpt.first == ProgramAction) 2409 return OptSpecifier(ActionOpt.second); 2410 2411 return None; 2412 } 2413 2414 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2415 SmallVectorImpl<const char *> &Args, 2416 CompilerInvocation::StringAllocator SA, 2417 bool IsHeader) { 2418 const FrontendOptions &FrontendOpts = Opts; 2419 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2420 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2421 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2422 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2423 MERGER, EXTRACTOR, TABLE_INDEX) \ 2424 GENERATE_OPTION_WITH_MARSHALLING( \ 2425 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2426 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2427 #include "clang/Driver/Options.inc" 2428 #undef FRONTEND_OPTION_WITH_MARSHALLING 2429 2430 Optional<OptSpecifier> ProgramActionOpt = 2431 getProgramActionOpt(Opts.ProgramAction); 2432 2433 // Generating a simple flag covers most frontend actions. 2434 std::function<void()> GenerateProgramAction = [&]() { 2435 GenerateArg(Args, *ProgramActionOpt, SA); 2436 }; 2437 2438 if (!ProgramActionOpt) { 2439 // PluginAction is the only program action handled separately. 2440 assert(Opts.ProgramAction == frontend::PluginAction && 2441 "Frontend action without option."); 2442 GenerateProgramAction = [&]() { 2443 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2444 }; 2445 } 2446 2447 // FIXME: Simplify the complex 'AST dump' command line. 2448 if (Opts.ProgramAction == frontend::ASTDump) { 2449 GenerateProgramAction = [&]() { 2450 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2451 // marshalling infrastructure. 2452 2453 if (Opts.ASTDumpFormat != ADOF_Default) { 2454 StringRef Format; 2455 switch (Opts.ASTDumpFormat) { 2456 case ADOF_Default: 2457 llvm_unreachable("Default AST dump format."); 2458 case ADOF_JSON: 2459 Format = "json"; 2460 break; 2461 } 2462 2463 if (Opts.ASTDumpAll) 2464 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2465 if (Opts.ASTDumpDecls) 2466 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2467 } else { 2468 if (Opts.ASTDumpAll) 2469 GenerateArg(Args, OPT_ast_dump_all, SA); 2470 if (Opts.ASTDumpDecls) 2471 GenerateArg(Args, OPT_ast_dump, SA); 2472 } 2473 }; 2474 } 2475 2476 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2477 GenerateProgramAction = [&]() { 2478 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2479 }; 2480 } 2481 2482 GenerateProgramAction(); 2483 2484 for (const auto &PluginArgs : Opts.PluginArgs) { 2485 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2486 const char *Spelling = 2487 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2488 for (const auto &PluginArg : PluginArgs.second) 2489 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2490 } 2491 2492 for (const auto &Ext : Opts.ModuleFileExtensions) 2493 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2494 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2495 2496 if (!Opts.CodeCompletionAt.FileName.empty()) 2497 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2498 SA); 2499 2500 for (const auto &Plugin : Opts.Plugins) 2501 GenerateArg(Args, OPT_load, Plugin, SA); 2502 2503 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2504 2505 for (const auto &ModuleFile : Opts.ModuleFiles) 2506 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2507 2508 if (Opts.AuxTargetCPU.hasValue()) 2509 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2510 2511 if (Opts.AuxTargetFeatures.hasValue()) 2512 for (const auto &Feature : *Opts.AuxTargetFeatures) 2513 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2514 2515 { 2516 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2517 StringRef ModuleMap = 2518 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2519 StringRef Header = IsHeader ? "-header" : ""; 2520 2521 StringRef Lang; 2522 switch (Opts.DashX.getLanguage()) { 2523 case Language::C: 2524 Lang = "c"; 2525 break; 2526 case Language::OpenCL: 2527 Lang = "cl"; 2528 break; 2529 case Language::OpenCLCXX: 2530 Lang = "clcpp"; 2531 break; 2532 case Language::CUDA: 2533 Lang = "cuda"; 2534 break; 2535 case Language::HIP: 2536 Lang = "hip"; 2537 break; 2538 case Language::CXX: 2539 Lang = "c++"; 2540 break; 2541 case Language::ObjC: 2542 Lang = "objective-c"; 2543 break; 2544 case Language::ObjCXX: 2545 Lang = "objective-c++"; 2546 break; 2547 case Language::RenderScript: 2548 Lang = "renderscript"; 2549 break; 2550 case Language::Asm: 2551 Lang = "assembler-with-cpp"; 2552 break; 2553 case Language::Unknown: 2554 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2555 "Generating -x argument for unknown language (not precompiled)."); 2556 Lang = "ast"; 2557 break; 2558 case Language::LLVM_IR: 2559 Lang = "ir"; 2560 break; 2561 } 2562 2563 GenerateArg(Args, OPT_x, Lang + Header + ModuleMap + Preprocessed, SA); 2564 } 2565 2566 // OPT_INPUT has a unique class, generate it directly. 2567 for (const auto &Input : Opts.Inputs) 2568 Args.push_back(SA(Input.getFile())); 2569 } 2570 2571 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2572 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2573 FrontendOptions &FrontendOpts = Opts; 2574 bool Success = true; 2575 unsigned NumErrorsBefore = Diags.getNumErrors(); 2576 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2577 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2578 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2579 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2580 MERGER, EXTRACTOR, TABLE_INDEX) \ 2581 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2582 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2583 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2584 MERGER, TABLE_INDEX) 2585 #include "clang/Driver/Options.inc" 2586 #undef FRONTEND_OPTION_WITH_MARSHALLING 2587 2588 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2589 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2590 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2591 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2592 assert(ProgramAction && "Option specifier not in Action_Group."); 2593 2594 if (ProgramAction == frontend::ASTDump && 2595 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2596 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2597 .CaseLower("default", ADOF_Default) 2598 .CaseLower("json", ADOF_JSON) 2599 .Default(std::numeric_limits<unsigned>::max()); 2600 2601 if (Val != std::numeric_limits<unsigned>::max()) 2602 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2603 else { 2604 Diags.Report(diag::err_drv_invalid_value) 2605 << A->getAsString(Args) << A->getValue(); 2606 Opts.ASTDumpFormat = ADOF_Default; 2607 } 2608 } 2609 2610 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2611 Opts.FixItSuffix = A->getValue(); 2612 2613 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2614 StringRef ArgStr = 2615 Args.hasArg(OPT_interface_stub_version_EQ) 2616 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2617 : "experimental-ifs-v2"; 2618 if (ArgStr == "experimental-yaml-elf-v1" || 2619 ArgStr == "experimental-ifs-v1" || 2620 ArgStr == "experimental-tapi-elf-v1") { 2621 std::string ErrorMessage = 2622 "Invalid interface stub format: " + ArgStr.str() + 2623 " is deprecated."; 2624 Diags.Report(diag::err_drv_invalid_value) 2625 << "Must specify a valid interface stub format type, ie: " 2626 "-interface-stub-version=experimental-ifs-v2" 2627 << ErrorMessage; 2628 ProgramAction = frontend::ParseSyntaxOnly; 2629 } else if (!ArgStr.startswith("experimental-ifs-")) { 2630 std::string ErrorMessage = 2631 "Invalid interface stub format: " + ArgStr.str() + "."; 2632 Diags.Report(diag::err_drv_invalid_value) 2633 << "Must specify a valid interface stub format type, ie: " 2634 "-interface-stub-version=experimental-ifs-v2" 2635 << ErrorMessage; 2636 ProgramAction = frontend::ParseSyntaxOnly; 2637 } 2638 } 2639 2640 Opts.ProgramAction = *ProgramAction; 2641 } 2642 2643 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2644 Opts.Plugins.emplace_back(A->getValue(0)); 2645 Opts.ProgramAction = frontend::PluginAction; 2646 Opts.ActionName = A->getValue(); 2647 } 2648 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2649 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2650 2651 for (const std::string &Arg : 2652 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2653 std::string BlockName; 2654 unsigned MajorVersion; 2655 unsigned MinorVersion; 2656 bool Hashed; 2657 std::string UserInfo; 2658 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2659 MinorVersion, Hashed, UserInfo)) { 2660 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2661 2662 continue; 2663 } 2664 2665 // Add the testing module file extension. 2666 Opts.ModuleFileExtensions.push_back( 2667 std::make_shared<TestModuleFileExtension>( 2668 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2669 } 2670 2671 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2672 Opts.CodeCompletionAt = 2673 ParsedSourceLocation::FromString(A->getValue()); 2674 if (Opts.CodeCompletionAt.FileName.empty()) 2675 Diags.Report(diag::err_drv_invalid_value) 2676 << A->getAsString(Args) << A->getValue(); 2677 } 2678 2679 Opts.Plugins = Args.getAllArgValues(OPT_load); 2680 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2681 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2682 // Only the -fmodule-file=<file> form. 2683 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2684 StringRef Val = A->getValue(); 2685 if (Val.find('=') == StringRef::npos) 2686 Opts.ModuleFiles.push_back(std::string(Val)); 2687 } 2688 2689 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2690 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2691 << "-emit-module"; 2692 2693 if (Args.hasArg(OPT_aux_target_cpu)) 2694 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2695 if (Args.hasArg(OPT_aux_target_feature)) 2696 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2697 2698 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2699 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2700 Diags.Report(diag::err_drv_argument_not_allowed_with) 2701 << "ARC migration" << "ObjC migration"; 2702 } 2703 2704 InputKind DashX(Language::Unknown); 2705 if (const Arg *A = Args.getLastArg(OPT_x)) { 2706 StringRef XValue = A->getValue(); 2707 2708 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2709 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2710 bool Preprocessed = XValue.consume_back("-cpp-output"); 2711 bool ModuleMap = XValue.consume_back("-module-map"); 2712 IsHeaderFile = !Preprocessed && !ModuleMap && 2713 XValue != "precompiled-header" && 2714 XValue.consume_back("-header"); 2715 2716 // Principal languages. 2717 DashX = llvm::StringSwitch<InputKind>(XValue) 2718 .Case("c", Language::C) 2719 .Case("cl", Language::OpenCL) 2720 .Case("clcpp", Language::OpenCLCXX) 2721 .Case("cuda", Language::CUDA) 2722 .Case("hip", Language::HIP) 2723 .Case("c++", Language::CXX) 2724 .Case("objective-c", Language::ObjC) 2725 .Case("objective-c++", Language::ObjCXX) 2726 .Case("renderscript", Language::RenderScript) 2727 .Default(Language::Unknown); 2728 2729 // "objc[++]-cpp-output" is an acceptable synonym for 2730 // "objective-c[++]-cpp-output". 2731 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2732 DashX = llvm::StringSwitch<InputKind>(XValue) 2733 .Case("objc", Language::ObjC) 2734 .Case("objc++", Language::ObjCXX) 2735 .Default(Language::Unknown); 2736 2737 // Some special cases cannot be combined with suffixes. 2738 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2739 DashX = llvm::StringSwitch<InputKind>(XValue) 2740 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2741 .Case("assembler-with-cpp", Language::Asm) 2742 .Cases("ast", "pcm", "precompiled-header", 2743 InputKind(Language::Unknown, InputKind::Precompiled)) 2744 .Case("ir", Language::LLVM_IR) 2745 .Default(Language::Unknown); 2746 2747 if (DashX.isUnknown()) 2748 Diags.Report(diag::err_drv_invalid_value) 2749 << A->getAsString(Args) << A->getValue(); 2750 2751 if (Preprocessed) 2752 DashX = DashX.getPreprocessed(); 2753 if (ModuleMap) 2754 DashX = DashX.withFormat(InputKind::ModuleMap); 2755 } 2756 2757 // '-' is the default input if none is given. 2758 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2759 Opts.Inputs.clear(); 2760 if (Inputs.empty()) 2761 Inputs.push_back("-"); 2762 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2763 InputKind IK = DashX; 2764 if (IK.isUnknown()) { 2765 IK = FrontendOptions::getInputKindForExtension( 2766 StringRef(Inputs[i]).rsplit('.').second); 2767 // FIXME: Warn on this? 2768 if (IK.isUnknown()) 2769 IK = Language::C; 2770 // FIXME: Remove this hack. 2771 if (i == 0) 2772 DashX = IK; 2773 } 2774 2775 bool IsSystem = false; 2776 2777 // The -emit-module action implicitly takes a module map. 2778 if (Opts.ProgramAction == frontend::GenerateModule && 2779 IK.getFormat() == InputKind::Source) { 2780 IK = IK.withFormat(InputKind::ModuleMap); 2781 IsSystem = Opts.IsSystemModule; 2782 } 2783 2784 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2785 } 2786 2787 Opts.DashX = DashX; 2788 2789 return Diags.getNumErrors() == NumErrorsBefore; 2790 } 2791 2792 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2793 void *MainAddr) { 2794 std::string ClangExecutable = 2795 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2796 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2797 } 2798 2799 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2800 SmallVectorImpl<const char *> &Args, 2801 CompilerInvocation::StringAllocator SA) { 2802 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2803 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2804 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2805 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2806 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2807 MERGER, EXTRACTOR, TABLE_INDEX) \ 2808 GENERATE_OPTION_WITH_MARSHALLING( \ 2809 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2810 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2811 #include "clang/Driver/Options.inc" 2812 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2813 2814 if (Opts.UseLibcxx) 2815 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2816 2817 if (!Opts.ModuleCachePath.empty()) 2818 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2819 2820 for (const auto &File : Opts.PrebuiltModuleFiles) 2821 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2822 2823 for (const auto &Path : Opts.PrebuiltModulePaths) 2824 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2825 2826 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2827 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2828 2829 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2830 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2831 llvm::Optional<bool> IsFramework, 2832 llvm::Optional<bool> IgnoreSysRoot) { 2833 return llvm::find(Groups, Entry.Group) != Groups.end() && 2834 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2835 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2836 }; 2837 2838 auto It = Opts.UserEntries.begin(); 2839 auto End = Opts.UserEntries.end(); 2840 2841 // Add -I..., -F..., and -index-header-map options in order. 2842 for (; It < End && 2843 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2844 ++It) { 2845 OptSpecifier Opt = [It, Matches]() { 2846 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2847 return OPT_F; 2848 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2849 return OPT_I; 2850 if (Matches(*It, frontend::Angled, true, true)) 2851 return OPT_F; 2852 if (Matches(*It, frontend::Angled, false, true)) 2853 return OPT_I; 2854 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2855 }(); 2856 2857 if (It->Group == frontend::IndexHeaderMap) 2858 GenerateArg(Args, OPT_index_header_map, SA); 2859 GenerateArg(Args, Opt, It->Path, SA); 2860 }; 2861 2862 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2863 // have already been generated as "-I[xx]yy". If that's the case, their 2864 // position on command line was such that this has no semantic impact on 2865 // include paths. 2866 for (; It < End && 2867 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2868 ++It) { 2869 OptSpecifier Opt = 2870 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2871 GenerateArg(Args, Opt, It->Path, SA); 2872 } 2873 2874 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2875 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2876 // command line was such that this has no semantic impact on include paths. 2877 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2878 GenerateArg(Args, OPT_idirafter, It->Path, SA); 2879 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 2880 GenerateArg(Args, OPT_iquote, It->Path, SA); 2881 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 2882 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 2883 It->Path, SA); 2884 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 2885 GenerateArg(Args, OPT_iframework, It->Path, SA); 2886 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 2887 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 2888 2889 // Add the paths for the various language specific isystem flags. 2890 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 2891 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 2892 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 2893 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 2894 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 2895 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 2896 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 2897 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 2898 2899 // Add the internal paths from a driver that detects standard include paths. 2900 // Note: Some paths that came from "-internal-isystem" arguments may have 2901 // already been generated as "-isystem". If that's the case, their position on 2902 // command line was such that this has no semantic impact on include paths. 2903 for (; It < End && 2904 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 2905 ++It) { 2906 OptSpecifier Opt = It->Group == frontend::System 2907 ? OPT_internal_isystem 2908 : OPT_internal_externc_isystem; 2909 GenerateArg(Args, Opt, It->Path, SA); 2910 } 2911 2912 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 2913 2914 // Add the path prefixes which are implicitly treated as being system headers. 2915 for (const auto &P : Opts.SystemHeaderPrefixes) { 2916 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 2917 : OPT_no_system_header_prefix; 2918 GenerateArg(Args, Opt, P.Prefix, SA); 2919 } 2920 2921 for (const std::string &F : Opts.VFSOverlayFiles) 2922 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 2923 } 2924 2925 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2926 DiagnosticsEngine &Diags, 2927 const std::string &WorkingDir) { 2928 HeaderSearchOptions *HeaderSearchOpts = &Opts; 2929 bool Success = true; 2930 2931 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2932 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2933 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2934 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2935 MERGER, EXTRACTOR, TABLE_INDEX) \ 2936 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2937 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2938 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2939 MERGER, TABLE_INDEX) 2940 #include "clang/Driver/Options.inc" 2941 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2942 2943 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2944 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2945 2946 // Canonicalize -fmodules-cache-path before storing it. 2947 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2948 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2949 if (WorkingDir.empty()) 2950 llvm::sys::fs::make_absolute(P); 2951 else 2952 llvm::sys::fs::make_absolute(WorkingDir, P); 2953 } 2954 llvm::sys::path::remove_dots(P); 2955 Opts.ModuleCachePath = std::string(P.str()); 2956 2957 // Only the -fmodule-file=<name>=<file> form. 2958 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2959 StringRef Val = A->getValue(); 2960 if (Val.find('=') != StringRef::npos){ 2961 auto Split = Val.split('='); 2962 Opts.PrebuiltModuleFiles.insert( 2963 {std::string(Split.first), std::string(Split.second)}); 2964 } 2965 } 2966 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2967 Opts.AddPrebuiltModulePath(A->getValue()); 2968 2969 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2970 StringRef MacroDef = A->getValue(); 2971 Opts.ModulesIgnoreMacros.insert( 2972 llvm::CachedHashString(MacroDef.split('=').first)); 2973 } 2974 2975 // Add -I..., -F..., and -index-header-map options in order. 2976 bool IsIndexHeaderMap = false; 2977 bool IsSysrootSpecified = 2978 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2979 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2980 if (A->getOption().matches(OPT_index_header_map)) { 2981 // -index-header-map applies to the next -I or -F. 2982 IsIndexHeaderMap = true; 2983 continue; 2984 } 2985 2986 frontend::IncludeDirGroup Group = 2987 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2988 2989 bool IsFramework = A->getOption().matches(OPT_F); 2990 std::string Path = A->getValue(); 2991 2992 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2993 SmallString<32> Buffer; 2994 llvm::sys::path::append(Buffer, Opts.Sysroot, 2995 llvm::StringRef(A->getValue()).substr(1)); 2996 Path = std::string(Buffer.str()); 2997 } 2998 2999 Opts.AddPath(Path, Group, IsFramework, 3000 /*IgnoreSysroot*/ true); 3001 IsIndexHeaderMap = false; 3002 } 3003 3004 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3005 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3006 for (const auto *A : 3007 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3008 if (A->getOption().matches(OPT_iprefix)) 3009 Prefix = A->getValue(); 3010 else if (A->getOption().matches(OPT_iwithprefix)) 3011 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3012 else 3013 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3014 } 3015 3016 for (const auto *A : Args.filtered(OPT_idirafter)) 3017 Opts.AddPath(A->getValue(), frontend::After, false, true); 3018 for (const auto *A : Args.filtered(OPT_iquote)) 3019 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3020 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3021 Opts.AddPath(A->getValue(), frontend::System, false, 3022 !A->getOption().matches(OPT_iwithsysroot)); 3023 for (const auto *A : Args.filtered(OPT_iframework)) 3024 Opts.AddPath(A->getValue(), frontend::System, true, true); 3025 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3026 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3027 /*IgnoreSysRoot=*/false); 3028 3029 // Add the paths for the various language specific isystem flags. 3030 for (const auto *A : Args.filtered(OPT_c_isystem)) 3031 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3032 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3033 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3034 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3035 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3036 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3037 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3038 3039 // Add the internal paths from a driver that detects standard include paths. 3040 for (const auto *A : 3041 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3042 frontend::IncludeDirGroup Group = frontend::System; 3043 if (A->getOption().matches(OPT_internal_externc_isystem)) 3044 Group = frontend::ExternCSystem; 3045 Opts.AddPath(A->getValue(), Group, false, true); 3046 } 3047 3048 // Add the path prefixes which are implicitly treated as being system headers. 3049 for (const auto *A : 3050 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3051 Opts.AddSystemHeaderPrefix( 3052 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3053 3054 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3055 Opts.AddVFSOverlayFile(A->getValue()); 3056 3057 return Success; 3058 } 3059 3060 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 3061 const llvm::Triple &T, 3062 std::vector<std::string> &Includes, 3063 LangStandard::Kind LangStd) { 3064 // Set some properties which depend solely on the input kind; it would be nice 3065 // to move these to the language standard, and have the driver resolve the 3066 // input kind + language standard. 3067 // 3068 // FIXME: Perhaps a better model would be for a single source file to have 3069 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 3070 // simultaneously active? 3071 if (IK.getLanguage() == Language::Asm) { 3072 Opts.AsmPreprocessor = 1; 3073 } else if (IK.isObjectiveC()) { 3074 Opts.ObjC = 1; 3075 } 3076 3077 if (LangStd == LangStandard::lang_unspecified) { 3078 // Based on the base language, pick one. 3079 switch (IK.getLanguage()) { 3080 case Language::Unknown: 3081 case Language::LLVM_IR: 3082 llvm_unreachable("Invalid input kind!"); 3083 case Language::OpenCL: 3084 LangStd = LangStandard::lang_opencl10; 3085 break; 3086 case Language::OpenCLCXX: 3087 LangStd = LangStandard::lang_openclcpp; 3088 break; 3089 case Language::CUDA: 3090 LangStd = LangStandard::lang_cuda; 3091 break; 3092 case Language::Asm: 3093 case Language::C: 3094 #if defined(CLANG_DEFAULT_STD_C) 3095 LangStd = CLANG_DEFAULT_STD_C; 3096 #else 3097 // The PS4 uses C99 as the default C standard. 3098 if (T.isPS4()) 3099 LangStd = LangStandard::lang_gnu99; 3100 else 3101 LangStd = LangStandard::lang_gnu17; 3102 #endif 3103 break; 3104 case Language::ObjC: 3105 #if defined(CLANG_DEFAULT_STD_C) 3106 LangStd = CLANG_DEFAULT_STD_C; 3107 #else 3108 LangStd = LangStandard::lang_gnu11; 3109 #endif 3110 break; 3111 case Language::CXX: 3112 case Language::ObjCXX: 3113 #if defined(CLANG_DEFAULT_STD_CXX) 3114 LangStd = CLANG_DEFAULT_STD_CXX; 3115 #else 3116 LangStd = LangStandard::lang_gnucxx14; 3117 #endif 3118 break; 3119 case Language::RenderScript: 3120 LangStd = LangStandard::lang_c99; 3121 break; 3122 case Language::HIP: 3123 LangStd = LangStandard::lang_hip; 3124 break; 3125 } 3126 } 3127 3128 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3129 Opts.LangStd = LangStd; 3130 Opts.LineComment = Std.hasLineComments(); 3131 Opts.C99 = Std.isC99(); 3132 Opts.C11 = Std.isC11(); 3133 Opts.C17 = Std.isC17(); 3134 Opts.C2x = Std.isC2x(); 3135 Opts.CPlusPlus = Std.isCPlusPlus(); 3136 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 3137 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 3138 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 3139 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 3140 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 3141 Opts.GNUMode = Std.isGNUMode(); 3142 Opts.GNUCVersion = 0; 3143 Opts.HexFloats = Std.hasHexFloats(); 3144 Opts.ImplicitInt = Std.hasImplicitInt(); 3145 3146 Opts.CPlusPlusModules = Opts.CPlusPlus20; 3147 3148 // Set OpenCL Version. 3149 Opts.OpenCL = Std.isOpenCL(); 3150 if (LangStd == LangStandard::lang_opencl10) 3151 Opts.OpenCLVersion = 100; 3152 else if (LangStd == LangStandard::lang_opencl11) 3153 Opts.OpenCLVersion = 110; 3154 else if (LangStd == LangStandard::lang_opencl12) 3155 Opts.OpenCLVersion = 120; 3156 else if (LangStd == LangStandard::lang_opencl20) 3157 Opts.OpenCLVersion = 200; 3158 else if (LangStd == LangStandard::lang_opencl30) 3159 Opts.OpenCLVersion = 300; 3160 else if (LangStd == LangStandard::lang_openclcpp) 3161 Opts.OpenCLCPlusPlusVersion = 100; 3162 3163 // OpenCL has some additional defaults. 3164 if (Opts.OpenCL) { 3165 Opts.AltiVec = 0; 3166 Opts.ZVector = 0; 3167 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3168 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 3169 Opts.OpenCLPipe = Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3170 Opts.OpenCLGenericAddressSpace = 3171 Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3172 3173 // Include default header file for OpenCL. 3174 if (Opts.IncludeDefaultHeader) { 3175 if (Opts.DeclareOpenCLBuiltins) { 3176 // Only include base header file for builtin types and constants. 3177 Includes.push_back("opencl-c-base.h"); 3178 } else { 3179 Includes.push_back("opencl-c.h"); 3180 } 3181 } 3182 } 3183 3184 Opts.HIP = IK.getLanguage() == Language::HIP; 3185 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 3186 if (Opts.HIP) { 3187 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 3188 // fuses multiplication/addition instructions without contract flag from 3189 // device library functions in LLVM bitcode, which causes accuracy loss in 3190 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 3191 // For device library functions in bitcode to work, 'Strict' or 'Standard' 3192 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 3193 // FP contract option is used to allow fuse across statements in frontend 3194 // whereas respecting contract flag in backend. 3195 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3196 } else if (Opts.CUDA) { 3197 // Allow fuse across statements disregarding pragmas. 3198 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3199 } 3200 3201 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 3202 3203 // OpenCL and C++ both have bool, true, false keywords. 3204 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 3205 3206 // OpenCL has half keyword 3207 Opts.Half = Opts.OpenCL; 3208 } 3209 3210 /// Check if input file kind and language standard are compatible. 3211 static bool IsInputCompatibleWithStandard(InputKind IK, 3212 const LangStandard &S) { 3213 switch (IK.getLanguage()) { 3214 case Language::Unknown: 3215 case Language::LLVM_IR: 3216 llvm_unreachable("should not parse language flags for this input"); 3217 3218 case Language::C: 3219 case Language::ObjC: 3220 case Language::RenderScript: 3221 return S.getLanguage() == Language::C; 3222 3223 case Language::OpenCL: 3224 return S.getLanguage() == Language::OpenCL || 3225 S.getLanguage() == Language::OpenCLCXX; 3226 3227 case Language::OpenCLCXX: 3228 return S.getLanguage() == Language::OpenCLCXX; 3229 3230 case Language::CXX: 3231 case Language::ObjCXX: 3232 return S.getLanguage() == Language::CXX; 3233 3234 case Language::CUDA: 3235 // FIXME: What -std= values should be permitted for CUDA compilations? 3236 return S.getLanguage() == Language::CUDA || 3237 S.getLanguage() == Language::CXX; 3238 3239 case Language::HIP: 3240 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3241 3242 case Language::Asm: 3243 // Accept (and ignore) all -std= values. 3244 // FIXME: The -std= value is not ignored; it affects the tokenization 3245 // and preprocessing rules if we're preprocessing this asm input. 3246 return true; 3247 } 3248 3249 llvm_unreachable("unexpected input language"); 3250 } 3251 3252 /// Get language name for given input kind. 3253 static const StringRef GetInputKindName(InputKind IK) { 3254 switch (IK.getLanguage()) { 3255 case Language::C: 3256 return "C"; 3257 case Language::ObjC: 3258 return "Objective-C"; 3259 case Language::CXX: 3260 return "C++"; 3261 case Language::ObjCXX: 3262 return "Objective-C++"; 3263 case Language::OpenCL: 3264 return "OpenCL"; 3265 case Language::OpenCLCXX: 3266 return "C++ for OpenCL"; 3267 case Language::CUDA: 3268 return "CUDA"; 3269 case Language::RenderScript: 3270 return "RenderScript"; 3271 case Language::HIP: 3272 return "HIP"; 3273 3274 case Language::Asm: 3275 return "Asm"; 3276 case Language::LLVM_IR: 3277 return "LLVM IR"; 3278 3279 case Language::Unknown: 3280 break; 3281 } 3282 llvm_unreachable("unknown input language"); 3283 } 3284 3285 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3286 SmallVectorImpl<const char *> &Args, 3287 StringAllocator SA, 3288 const llvm::Triple &T) { 3289 OptSpecifier StdOpt; 3290 switch (Opts.LangStd) { 3291 case LangStandard::lang_opencl10: 3292 case LangStandard::lang_opencl11: 3293 case LangStandard::lang_opencl12: 3294 case LangStandard::lang_opencl20: 3295 case LangStandard::lang_opencl30: 3296 case LangStandard::lang_openclcpp: 3297 StdOpt = OPT_cl_std_EQ; 3298 break; 3299 default: 3300 StdOpt = OPT_std_EQ; 3301 break; 3302 } 3303 3304 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3305 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3306 3307 if (Opts.IncludeDefaultHeader) 3308 GenerateArg(Args, OPT_finclude_default_header, SA); 3309 if (Opts.DeclareOpenCLBuiltins) 3310 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3311 3312 const LangOptions *LangOpts = &Opts; 3313 3314 #define LANG_OPTION_WITH_MARSHALLING( \ 3315 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3316 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3317 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3318 MERGER, EXTRACTOR, TABLE_INDEX) \ 3319 GENERATE_OPTION_WITH_MARSHALLING( \ 3320 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3321 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3322 #include "clang/Driver/Options.inc" 3323 #undef LANG_OPTION_WITH_MARSHALLING 3324 3325 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3326 3327 if (Opts.ObjC) { 3328 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3329 3330 if (Opts.GC == LangOptions::GCOnly) 3331 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3332 else if (Opts.GC == LangOptions::HybridGC) 3333 GenerateArg(Args, OPT_fobjc_gc, SA); 3334 else if (Opts.ObjCAutoRefCount == 1) 3335 GenerateArg(Args, OPT_fobjc_arc, SA); 3336 3337 if (Opts.ObjCWeakRuntime) 3338 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3339 3340 if (Opts.ObjCWeak) 3341 GenerateArg(Args, OPT_fobjc_weak, SA); 3342 3343 if (Opts.ObjCSubscriptingLegacyRuntime) 3344 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3345 } 3346 3347 if (Opts.GNUCVersion != 0) { 3348 unsigned Major = Opts.GNUCVersion / 100 / 100; 3349 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3350 unsigned Patch = Opts.GNUCVersion % 100; 3351 GenerateArg(Args, OPT_fgnuc_version_EQ, 3352 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3353 } 3354 3355 if (Opts.IgnoreXCOFFVisibility) 3356 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3357 3358 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3359 GenerateArg(Args, OPT_ftrapv, SA); 3360 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3361 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3362 GenerateArg(Args, OPT_fwrapv, SA); 3363 } 3364 3365 if (Opts.MSCompatibilityVersion != 0) { 3366 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3367 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3368 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3369 GenerateArg(Args, OPT_fms_compatibility_version, 3370 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3371 } 3372 3373 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3374 if (!Opts.Trigraphs) 3375 GenerateArg(Args, OPT_fno_trigraphs, SA); 3376 } else { 3377 if (Opts.Trigraphs) 3378 GenerateArg(Args, OPT_ftrigraphs, SA); 3379 } 3380 3381 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3382 GenerateArg(Args, OPT_fblocks, SA); 3383 3384 if (Opts.ConvergentFunctions && 3385 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3386 GenerateArg(Args, OPT_fconvergent_functions, SA); 3387 3388 if (Opts.NoBuiltin && !Opts.Freestanding) 3389 GenerateArg(Args, OPT_fno_builtin, SA); 3390 3391 if (!Opts.NoBuiltin) 3392 for (const auto &Func : Opts.NoBuiltinFuncs) 3393 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3394 3395 if (Opts.LongDoubleSize == 128) 3396 GenerateArg(Args, OPT_mlong_double_128, SA); 3397 else if (Opts.LongDoubleSize == 64) 3398 GenerateArg(Args, OPT_mlong_double_64, SA); 3399 3400 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3401 3402 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3403 // '-fopenmp-targets='. 3404 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3405 GenerateArg(Args, OPT_fopenmp, SA); 3406 3407 if (Opts.OpenMP != 50) 3408 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3409 3410 if (!Opts.OpenMPUseTLS) 3411 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3412 3413 if (Opts.OpenMPIsDevice) 3414 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3415 3416 if (Opts.OpenMPIRBuilder) 3417 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3418 } 3419 3420 if (Opts.OpenMPSimd) { 3421 GenerateArg(Args, OPT_fopenmp_simd, SA); 3422 3423 if (Opts.OpenMP != 50) 3424 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3425 } 3426 3427 if (Opts.OpenMPCUDANumSMs != 0) 3428 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3429 Twine(Opts.OpenMPCUDANumSMs), SA); 3430 3431 if (Opts.OpenMPCUDABlocksPerSM != 0) 3432 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3433 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3434 3435 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3436 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3437 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3438 3439 if (!Opts.OMPTargetTriples.empty()) { 3440 std::string Targets; 3441 llvm::raw_string_ostream OS(Targets); 3442 llvm::interleave( 3443 Opts.OMPTargetTriples, OS, 3444 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3445 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3446 } 3447 3448 if (!Opts.OMPHostIRFile.empty()) 3449 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3450 3451 if (Opts.OpenMPCUDAMode) 3452 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3453 3454 if (Opts.OpenMPCUDATargetParallel) 3455 GenerateArg(Args, OPT_fopenmp_cuda_parallel_target_regions, SA); 3456 3457 if (Opts.OpenMPCUDAForceFullRuntime) 3458 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3459 3460 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3461 // generated from CodeGenOptions. 3462 3463 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3464 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3465 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3466 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3467 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3468 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3469 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3470 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3471 3472 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3473 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3474 3475 // Conflating '-fsanitize-system-blacklist' and '-fsanitize-blacklist'. 3476 for (const std::string &F : Opts.NoSanitizeFiles) 3477 GenerateArg(Args, OPT_fsanitize_blacklist, F, SA); 3478 3479 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3480 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3481 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3482 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3483 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3484 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3485 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3486 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3487 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3488 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3489 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3490 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3491 3492 if (Opts.getSignReturnAddressScope() == 3493 LangOptions::SignReturnAddressScopeKind::All) 3494 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3495 else if (Opts.getSignReturnAddressScope() == 3496 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3497 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3498 3499 if (Opts.getSignReturnAddressKey() == 3500 LangOptions::SignReturnAddressKeyKind::BKey) 3501 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3502 } 3503 3504 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3505 InputKind IK, const llvm::Triple &T, 3506 std::vector<std::string> &Includes, 3507 DiagnosticsEngine &Diags) { 3508 unsigned NumErrorsBefore = Diags.getNumErrors(); 3509 3510 // FIXME: Cleanup per-file based stuff. 3511 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3512 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3513 LangStd = LangStandard::getLangKind(A->getValue()); 3514 if (LangStd == LangStandard::lang_unspecified) { 3515 Diags.Report(diag::err_drv_invalid_value) 3516 << A->getAsString(Args) << A->getValue(); 3517 // Report supported standards with short description. 3518 for (unsigned KindValue = 0; 3519 KindValue != LangStandard::lang_unspecified; 3520 ++KindValue) { 3521 const LangStandard &Std = LangStandard::getLangStandardForKind( 3522 static_cast<LangStandard::Kind>(KindValue)); 3523 if (IsInputCompatibleWithStandard(IK, Std)) { 3524 auto Diag = Diags.Report(diag::note_drv_use_standard); 3525 Diag << Std.getName() << Std.getDescription(); 3526 unsigned NumAliases = 0; 3527 #define LANGSTANDARD(id, name, lang, desc, features) 3528 #define LANGSTANDARD_ALIAS(id, alias) \ 3529 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3530 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3531 #include "clang/Basic/LangStandards.def" 3532 Diag << NumAliases; 3533 #define LANGSTANDARD(id, name, lang, desc, features) 3534 #define LANGSTANDARD_ALIAS(id, alias) \ 3535 if (KindValue == LangStandard::lang_##id) Diag << alias; 3536 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3537 #include "clang/Basic/LangStandards.def" 3538 } 3539 } 3540 } else { 3541 // Valid standard, check to make sure language and standard are 3542 // compatible. 3543 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3544 if (!IsInputCompatibleWithStandard(IK, Std)) { 3545 Diags.Report(diag::err_drv_argument_not_allowed_with) 3546 << A->getAsString(Args) << GetInputKindName(IK); 3547 } 3548 } 3549 } 3550 3551 // -cl-std only applies for OpenCL language standards. 3552 // Override the -std option in this case. 3553 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3554 LangStandard::Kind OpenCLLangStd 3555 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3556 .Cases("cl", "CL", LangStandard::lang_opencl10) 3557 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3558 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3559 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3560 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3561 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3562 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 3563 .Default(LangStandard::lang_unspecified); 3564 3565 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3566 Diags.Report(diag::err_drv_invalid_value) 3567 << A->getAsString(Args) << A->getValue(); 3568 } 3569 else 3570 LangStd = OpenCLLangStd; 3571 } 3572 3573 // These need to be parsed now. They are used to set OpenCL defaults. 3574 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3575 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3576 3577 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd); 3578 3579 // The key paths of codegen options defined in Options.td start with 3580 // "LangOpts->". Let's provide the expected variable name and type. 3581 LangOptions *LangOpts = &Opts; 3582 bool Success = true; 3583 3584 #define LANG_OPTION_WITH_MARSHALLING( \ 3585 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3586 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3587 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3588 MERGER, EXTRACTOR, TABLE_INDEX) \ 3589 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 3590 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3591 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 3592 MERGER, TABLE_INDEX) 3593 #include "clang/Driver/Options.inc" 3594 #undef LANG_OPTION_WITH_MARSHALLING 3595 3596 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3597 StringRef Name = A->getValue(); 3598 if (Name == "full" || Name == "branch") { 3599 Opts.CFProtectionBranch = 1; 3600 } 3601 } 3602 3603 if (Opts.ObjC) { 3604 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3605 StringRef value = arg->getValue(); 3606 if (Opts.ObjCRuntime.tryParse(value)) 3607 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3608 } 3609 3610 if (Args.hasArg(OPT_fobjc_gc_only)) 3611 Opts.setGC(LangOptions::GCOnly); 3612 else if (Args.hasArg(OPT_fobjc_gc)) 3613 Opts.setGC(LangOptions::HybridGC); 3614 else if (Args.hasArg(OPT_fobjc_arc)) { 3615 Opts.ObjCAutoRefCount = 1; 3616 if (!Opts.ObjCRuntime.allowsARC()) 3617 Diags.Report(diag::err_arc_unsupported_on_runtime); 3618 } 3619 3620 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3621 // whether the feature is actually enabled. This is predominantly 3622 // determined by -fobjc-runtime, but we allow it to be overridden 3623 // from the command line for testing purposes. 3624 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3625 Opts.ObjCWeakRuntime = 1; 3626 else 3627 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3628 3629 // ObjCWeak determines whether __weak is actually enabled. 3630 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3631 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3632 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3633 assert(!Opts.ObjCWeak); 3634 } else if (Opts.getGC() != LangOptions::NonGC) { 3635 Diags.Report(diag::err_objc_weak_with_gc); 3636 } else if (!Opts.ObjCWeakRuntime) { 3637 Diags.Report(diag::err_objc_weak_unsupported); 3638 } else { 3639 Opts.ObjCWeak = 1; 3640 } 3641 } else if (Opts.ObjCAutoRefCount) { 3642 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3643 } 3644 3645 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3646 Opts.ObjCSubscriptingLegacyRuntime = 3647 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3648 } 3649 3650 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3651 // Check that the version has 1 to 3 components and the minor and patch 3652 // versions fit in two decimal digits. 3653 VersionTuple GNUCVer; 3654 bool Invalid = GNUCVer.tryParse(A->getValue()); 3655 unsigned Major = GNUCVer.getMajor(); 3656 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3657 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3658 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3659 Diags.Report(diag::err_drv_invalid_value) 3660 << A->getAsString(Args) << A->getValue(); 3661 } 3662 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3663 } 3664 3665 // In AIX OS, the -mignore-xcoff-visibility is enable by default if there is 3666 // no -fvisibility=* option. 3667 // This is the reason why '-fvisibility' needs to be always generated: 3668 // its absence implies '-mignore-xcoff-visibility'. 3669 // 3670 // Suppose the original cc1 command line does contain '-fvisibility default': 3671 // '-mignore-xcoff-visibility' should not be implied. 3672 // * If '-fvisibility' is not generated (as most options with default values 3673 // don't), its absence would imply '-mignore-xcoff-visibility'. This changes 3674 // the command line semantics. 3675 // * If '-fvisibility' is generated regardless of its presence and value, 3676 // '-mignore-xcoff-visibility' won't be implied and the command line 3677 // semantics are kept intact. 3678 // 3679 // When the original cc1 command line does **not** contain '-fvisibility', 3680 // '-mignore-xcoff-visibility' is implied. The generated command line will 3681 // contain both '-fvisibility default' and '-mignore-xcoff-visibility' and 3682 // subsequent calls to `CreateFromArgs`/`generateCC1CommandLine` will always 3683 // produce the same arguments. 3684 3685 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 3686 !Args.hasArg(OPT_fvisibility))) 3687 Opts.IgnoreXCOFFVisibility = 1; 3688 3689 if (Args.hasArg(OPT_ftrapv)) { 3690 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3691 // Set the handler, if one is specified. 3692 Opts.OverflowHandler = 3693 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3694 } 3695 else if (Args.hasArg(OPT_fwrapv)) 3696 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3697 3698 Opts.MSCompatibilityVersion = 0; 3699 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3700 VersionTuple VT; 3701 if (VT.tryParse(A->getValue())) 3702 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3703 << A->getValue(); 3704 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3705 VT.getMinor().getValueOr(0) * 100000 + 3706 VT.getSubminor().getValueOr(0); 3707 } 3708 3709 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3710 // is specified, or -std is set to a conforming mode. 3711 // Trigraphs are disabled by default in c++1z onwards. 3712 // For z/OS, trigraphs are enabled by default (without regard to the above). 3713 Opts.Trigraphs = 3714 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3715 Opts.Trigraphs = 3716 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3717 3718 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3719 && Opts.OpenCLVersion == 200); 3720 3721 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3722 Opts.SYCLIsDevice || 3723 Args.hasArg(OPT_fconvergent_functions); 3724 3725 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3726 if (!Opts.NoBuiltin) 3727 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3728 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3729 ? 128 3730 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3731 if (Opts.FastRelaxedMath) 3732 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3733 llvm::sort(Opts.ModuleFeatures); 3734 3735 // -mrtd option 3736 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3737 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3738 Diags.Report(diag::err_drv_argument_not_allowed_with) 3739 << A->getSpelling() << "-fdefault-calling-conv"; 3740 else { 3741 if (T.getArch() != llvm::Triple::x86) 3742 Diags.Report(diag::err_drv_argument_not_allowed_with) 3743 << A->getSpelling() << T.getTriple(); 3744 else 3745 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3746 } 3747 } 3748 3749 // Check if -fopenmp is specified and set default version to 5.0. 3750 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3751 // Check if -fopenmp-simd is specified. 3752 bool IsSimdSpecified = 3753 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3754 /*Default=*/false); 3755 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3756 Opts.OpenMPUseTLS = 3757 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3758 Opts.OpenMPIsDevice = 3759 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3760 Opts.OpenMPIRBuilder = 3761 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3762 bool IsTargetSpecified = 3763 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3764 3765 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3766 3767 if (Opts.OpenMP || Opts.OpenMPSimd) { 3768 if (int Version = getLastArgIntValue( 3769 Args, OPT_fopenmp_version_EQ, 3770 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3771 Opts.OpenMP = Version; 3772 // Provide diagnostic when a given target is not expected to be an OpenMP 3773 // device or host. 3774 if (!Opts.OpenMPIsDevice) { 3775 switch (T.getArch()) { 3776 default: 3777 break; 3778 // Add unsupported host targets here: 3779 case llvm::Triple::nvptx: 3780 case llvm::Triple::nvptx64: 3781 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3782 break; 3783 } 3784 } 3785 } 3786 3787 // Set the flag to prevent the implementation from emitting device exception 3788 // handling code for those requiring so. 3789 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3790 Opts.OpenCLCPlusPlus) { 3791 Opts.Exceptions = 0; 3792 Opts.CXXExceptions = 0; 3793 } 3794 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3795 Opts.OpenMPCUDANumSMs = 3796 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3797 Opts.OpenMPCUDANumSMs, Diags); 3798 Opts.OpenMPCUDABlocksPerSM = 3799 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3800 Opts.OpenMPCUDABlocksPerSM, Diags); 3801 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3802 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3803 Opts.OpenMPCUDAReductionBufNum, Diags); 3804 } 3805 3806 // Get the OpenMP target triples if any. 3807 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3808 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3809 auto getArchPtrSize = [](const llvm::Triple &T) { 3810 if (T.isArch16Bit()) 3811 return Arch16Bit; 3812 if (T.isArch32Bit()) 3813 return Arch32Bit; 3814 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3815 return Arch64Bit; 3816 }; 3817 3818 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3819 llvm::Triple TT(A->getValue(i)); 3820 3821 if (TT.getArch() == llvm::Triple::UnknownArch || 3822 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3823 TT.getArch() == llvm::Triple::nvptx || 3824 TT.getArch() == llvm::Triple::nvptx64 || 3825 TT.getArch() == llvm::Triple::amdgcn || 3826 TT.getArch() == llvm::Triple::x86 || 3827 TT.getArch() == llvm::Triple::x86_64)) 3828 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3829 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3830 Diags.Report(diag::err_drv_incompatible_omp_arch) 3831 << A->getValue(i) << T.str(); 3832 else 3833 Opts.OMPTargetTriples.push_back(TT); 3834 } 3835 } 3836 3837 // Get OpenMP host file path if any and report if a non existent file is 3838 // found 3839 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3840 Opts.OMPHostIRFile = A->getValue(); 3841 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3842 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3843 << Opts.OMPHostIRFile; 3844 } 3845 3846 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3847 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3848 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3849 3850 // Set CUDA support for parallel execution of target regions for OpenMP target 3851 // NVPTX/AMDGCN if specified in options. 3852 Opts.OpenMPCUDATargetParallel = 3853 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3854 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 3855 3856 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3857 Opts.OpenMPCUDAForceFullRuntime = 3858 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3859 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3860 3861 // FIXME: Eliminate this dependency. 3862 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3863 OptSize = getOptimizationLevelSize(Args); 3864 Opts.Optimize = Opt != 0; 3865 Opts.OptimizeSize = OptSize != 0; 3866 3867 // This is the __NO_INLINE__ define, which just depends on things like the 3868 // optimization level and -fno-inline, not actually whether the backend has 3869 // inlining enabled. 3870 Opts.NoInlineDefine = !Opts.Optimize; 3871 if (Arg *InlineArg = Args.getLastArg( 3872 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3873 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3874 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3875 Opts.NoInlineDefine = true; 3876 3877 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3878 StringRef Val = A->getValue(); 3879 if (Val == "fast") 3880 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3881 else if (Val == "on") 3882 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3883 else if (Val == "off") 3884 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3885 else if (Val == "fast-honor-pragmas") 3886 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3887 else 3888 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3889 } 3890 3891 // Parse -fsanitize= arguments. 3892 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3893 Diags, Opts.Sanitize); 3894 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3895 std::vector<std::string> systemBlacklists = 3896 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3897 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3898 systemBlacklists.begin(), systemBlacklists.end()); 3899 3900 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3901 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3902 3903 StringRef Ver = A->getValue(); 3904 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3905 unsigned Major, Minor = 0; 3906 3907 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3908 // y or y.0 (4 <= y <= current version). 3909 if (!VerParts.first.startswith("0") && 3910 !VerParts.first.getAsInteger(10, Major) && 3911 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3912 (Major == 3 ? VerParts.second.size() == 1 && 3913 !VerParts.second.getAsInteger(10, Minor) 3914 : VerParts.first.size() == Ver.size() || 3915 VerParts.second == "0")) { 3916 // Got a valid version number. 3917 if (Major == 3 && Minor <= 8) 3918 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3919 else if (Major <= 4) 3920 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3921 else if (Major <= 6) 3922 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3923 else if (Major <= 7) 3924 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3925 else if (Major <= 9) 3926 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3927 else if (Major <= 11) 3928 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 3929 } else if (Ver != "latest") { 3930 Diags.Report(diag::err_drv_invalid_value) 3931 << A->getAsString(Args) << A->getValue(); 3932 } 3933 } 3934 3935 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3936 StringRef SignScope = A->getValue(); 3937 3938 if (SignScope.equals_lower("none")) 3939 Opts.setSignReturnAddressScope( 3940 LangOptions::SignReturnAddressScopeKind::None); 3941 else if (SignScope.equals_lower("all")) 3942 Opts.setSignReturnAddressScope( 3943 LangOptions::SignReturnAddressScopeKind::All); 3944 else if (SignScope.equals_lower("non-leaf")) 3945 Opts.setSignReturnAddressScope( 3946 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3947 else 3948 Diags.Report(diag::err_drv_invalid_value) 3949 << A->getAsString(Args) << SignScope; 3950 3951 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3952 StringRef SignKey = A->getValue(); 3953 if (!SignScope.empty() && !SignKey.empty()) { 3954 if (SignKey.equals_lower("a_key")) 3955 Opts.setSignReturnAddressKey( 3956 LangOptions::SignReturnAddressKeyKind::AKey); 3957 else if (SignKey.equals_lower("b_key")) 3958 Opts.setSignReturnAddressKey( 3959 LangOptions::SignReturnAddressKeyKind::BKey); 3960 else 3961 Diags.Report(diag::err_drv_invalid_value) 3962 << A->getAsString(Args) << SignKey; 3963 } 3964 } 3965 } 3966 3967 return Success && Diags.getNumErrors() == NumErrorsBefore; 3968 } 3969 3970 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3971 switch (Action) { 3972 case frontend::ASTDeclList: 3973 case frontend::ASTDump: 3974 case frontend::ASTPrint: 3975 case frontend::ASTView: 3976 case frontend::EmitAssembly: 3977 case frontend::EmitBC: 3978 case frontend::EmitHTML: 3979 case frontend::EmitLLVM: 3980 case frontend::EmitLLVMOnly: 3981 case frontend::EmitCodeGenOnly: 3982 case frontend::EmitObj: 3983 case frontend::FixIt: 3984 case frontend::GenerateModule: 3985 case frontend::GenerateModuleInterface: 3986 case frontend::GenerateHeaderModule: 3987 case frontend::GeneratePCH: 3988 case frontend::GenerateInterfaceStubs: 3989 case frontend::ParseSyntaxOnly: 3990 case frontend::ModuleFileInfo: 3991 case frontend::VerifyPCH: 3992 case frontend::PluginAction: 3993 case frontend::RewriteObjC: 3994 case frontend::RewriteTest: 3995 case frontend::RunAnalysis: 3996 case frontend::TemplightDump: 3997 case frontend::MigrateSource: 3998 return false; 3999 4000 case frontend::DumpCompilerOptions: 4001 case frontend::DumpRawTokens: 4002 case frontend::DumpTokens: 4003 case frontend::InitOnly: 4004 case frontend::PrintPreamble: 4005 case frontend::PrintPreprocessedInput: 4006 case frontend::RewriteMacros: 4007 case frontend::RunPreprocessorOnly: 4008 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4009 return true; 4010 } 4011 llvm_unreachable("invalid frontend action"); 4012 } 4013 4014 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4015 SmallVectorImpl<const char *> &Args, 4016 CompilerInvocation::StringAllocator SA, 4017 const LangOptions &LangOpts, 4018 const FrontendOptions &FrontendOpts, 4019 const CodeGenOptions &CodeGenOpts) { 4020 PreprocessorOptions *PreprocessorOpts = &Opts; 4021 4022 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4023 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4024 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4025 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4026 MERGER, EXTRACTOR, TABLE_INDEX) \ 4027 GENERATE_OPTION_WITH_MARSHALLING( \ 4028 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4029 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4030 #include "clang/Driver/Options.inc" 4031 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4032 4033 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4034 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4035 4036 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4037 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4038 4039 for (const auto &MP : Opts.MacroPrefixMap) 4040 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 4041 4042 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4043 GenerateArg(Args, OPT_preamble_bytes_EQ, 4044 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4045 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4046 SA); 4047 4048 for (const auto &M : Opts.Macros) { 4049 // Don't generate __CET__ macro definitions. They are implied by the 4050 // -fcf-protection option that is generated elsewhere. 4051 if (M.first == "__CET__=1" && !M.second && 4052 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4053 continue; 4054 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4055 !CodeGenOpts.CFProtectionBranch) 4056 continue; 4057 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4058 CodeGenOpts.CFProtectionBranch) 4059 continue; 4060 4061 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4062 } 4063 4064 for (const auto &I : Opts.Includes) { 4065 // Don't generate OpenCL includes. They are implied by other flags that are 4066 // generated elsewhere. 4067 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4068 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4069 I == "opencl-c.h")) 4070 continue; 4071 4072 GenerateArg(Args, OPT_include, I, SA); 4073 } 4074 4075 for (const auto &CI : Opts.ChainedIncludes) 4076 GenerateArg(Args, OPT_chain_include, CI, SA); 4077 4078 for (const auto &RF : Opts.RemappedFiles) 4079 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4080 4081 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4082 // generated elsewhere. 4083 } 4084 4085 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4086 DiagnosticsEngine &Diags, 4087 frontend::ActionKind Action, 4088 const FrontendOptions &FrontendOpts) { 4089 PreprocessorOptions *PreprocessorOpts = &Opts; 4090 bool Success = true; 4091 4092 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4093 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4094 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4095 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4096 MERGER, EXTRACTOR, TABLE_INDEX) \ 4097 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4098 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4099 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4100 MERGER, TABLE_INDEX) 4101 #include "clang/Driver/Options.inc" 4102 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4103 4104 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4105 Args.hasArg(OPT_pch_through_hdrstop_use); 4106 4107 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4108 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4109 4110 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4111 auto Split = StringRef(A).split('='); 4112 Opts.MacroPrefixMap.insert( 4113 {std::string(Split.first), std::string(Split.second)}); 4114 } 4115 4116 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4117 StringRef Value(A->getValue()); 4118 size_t Comma = Value.find(','); 4119 unsigned Bytes = 0; 4120 unsigned EndOfLine = 0; 4121 4122 if (Comma == StringRef::npos || 4123 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4124 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4125 Diags.Report(diag::err_drv_preamble_format); 4126 else { 4127 Opts.PrecompiledPreambleBytes.first = Bytes; 4128 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4129 } 4130 } 4131 4132 // Add the __CET__ macro if a CFProtection option is set. 4133 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4134 StringRef Name = A->getValue(); 4135 if (Name == "branch") 4136 Opts.addMacroDef("__CET__=1"); 4137 else if (Name == "return") 4138 Opts.addMacroDef("__CET__=2"); 4139 else if (Name == "full") 4140 Opts.addMacroDef("__CET__=3"); 4141 } 4142 4143 // Add macros from the command line. 4144 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4145 if (A->getOption().matches(OPT_D)) 4146 Opts.addMacroDef(A->getValue()); 4147 else 4148 Opts.addMacroUndef(A->getValue()); 4149 } 4150 4151 // Add the ordered list of -includes. 4152 for (const auto *A : Args.filtered(OPT_include)) 4153 Opts.Includes.emplace_back(A->getValue()); 4154 4155 for (const auto *A : Args.filtered(OPT_chain_include)) 4156 Opts.ChainedIncludes.emplace_back(A->getValue()); 4157 4158 for (const auto *A : Args.filtered(OPT_remap_file)) { 4159 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4160 4161 if (Split.second.empty()) { 4162 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4163 continue; 4164 } 4165 4166 Opts.addRemappedFile(Split.first, Split.second); 4167 } 4168 4169 // Always avoid lexing editor placeholders when we're just running the 4170 // preprocessor as we never want to emit the 4171 // "editor placeholder in source file" error in PP only mode. 4172 if (isStrictlyPreprocessorAction(Action)) 4173 Opts.LexEditorPlaceholders = false; 4174 4175 return Success; 4176 } 4177 4178 static void GeneratePreprocessorOutputArgs( 4179 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4180 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4181 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4182 4183 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4184 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4185 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4186 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4187 MERGER, EXTRACTOR, TABLE_INDEX) \ 4188 GENERATE_OPTION_WITH_MARSHALLING( \ 4189 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4190 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4191 #include "clang/Driver/Options.inc" 4192 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4193 4194 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4195 if (Generate_dM) 4196 GenerateArg(Args, OPT_dM, SA); 4197 if (!Generate_dM && Opts.ShowMacros) 4198 GenerateArg(Args, OPT_dD, SA); 4199 } 4200 4201 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4202 ArgList &Args, DiagnosticsEngine &Diags, 4203 frontend::ActionKind Action) { 4204 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4205 unsigned NumErrorsBefore = Diags.getNumErrors(); 4206 bool Success = true; 4207 4208 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4209 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4210 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4211 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4212 MERGER, EXTRACTOR, TABLE_INDEX) \ 4213 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4214 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4215 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4216 MERGER, TABLE_INDEX) 4217 #include "clang/Driver/Options.inc" 4218 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4219 4220 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4221 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4222 4223 return Success && Diags.getNumErrors() == NumErrorsBefore; 4224 } 4225 4226 static void GenerateTargetArgs(const TargetOptions &Opts, 4227 SmallVectorImpl<const char *> &Args, 4228 CompilerInvocation::StringAllocator SA) { 4229 const TargetOptions *TargetOpts = &Opts; 4230 #define TARGET_OPTION_WITH_MARSHALLING( \ 4231 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4232 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4233 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4234 MERGER, EXTRACTOR, TABLE_INDEX) \ 4235 GENERATE_OPTION_WITH_MARSHALLING( \ 4236 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4237 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4238 #include "clang/Driver/Options.inc" 4239 #undef TARGET_OPTION_WITH_MARSHALLING 4240 4241 if (!Opts.SDKVersion.empty()) 4242 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4243 SA); 4244 } 4245 4246 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4247 DiagnosticsEngine &Diags) { 4248 TargetOptions *TargetOpts = &Opts; 4249 unsigned NumErrorsBefore = Diags.getNumErrors(); 4250 bool Success = true; 4251 4252 #define TARGET_OPTION_WITH_MARSHALLING( \ 4253 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4254 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4255 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4256 MERGER, EXTRACTOR, TABLE_INDEX) \ 4257 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4258 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4259 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4260 MERGER, TABLE_INDEX) 4261 #include "clang/Driver/Options.inc" 4262 #undef TARGET_OPTION_WITH_MARSHALLING 4263 4264 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4265 llvm::VersionTuple Version; 4266 if (Version.tryParse(A->getValue())) 4267 Diags.Report(diag::err_drv_invalid_value) 4268 << A->getAsString(Args) << A->getValue(); 4269 else 4270 Opts.SDKVersion = Version; 4271 } 4272 4273 return Success && Diags.getNumErrors() == NumErrorsBefore; 4274 } 4275 4276 bool CompilerInvocation::CreateFromArgsImpl( 4277 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4278 DiagnosticsEngine &Diags, const char *Argv0) { 4279 bool Success = true; 4280 4281 // Parse the arguments. 4282 const OptTable &Opts = getDriverOptTable(); 4283 const unsigned IncludedFlagsBitmask = options::CC1Option; 4284 unsigned MissingArgIndex, MissingArgCount; 4285 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4286 MissingArgCount, IncludedFlagsBitmask); 4287 LangOptions &LangOpts = *Res.getLangOpts(); 4288 4289 // Check for missing argument error. 4290 if (MissingArgCount) { 4291 Diags.Report(diag::err_drv_missing_argument) 4292 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4293 Success = false; 4294 } 4295 4296 // Issue errors on unknown arguments. 4297 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4298 auto ArgString = A->getAsString(Args); 4299 std::string Nearest; 4300 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4301 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4302 else 4303 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4304 << ArgString << Nearest; 4305 Success = false; 4306 } 4307 4308 Success &= ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4309 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4310 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4311 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4312 /*DefaultDiagColor=*/false); 4313 Success &= ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 4314 LangOpts.IsHeaderFile); 4315 // FIXME: We shouldn't have to pass the DashX option around here 4316 InputKind DashX = Res.getFrontendOpts().DashX; 4317 Success &= ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4318 llvm::Triple T(Res.getTargetOpts().Triple); 4319 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4320 Res.getFileSystemOpts().WorkingDir); 4321 if (DashX.getFormat() == InputKind::Precompiled || 4322 DashX.getLanguage() == Language::LLVM_IR) { 4323 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 4324 // PassManager in BackendUtil.cpp. They need to be initializd no matter 4325 // what the input type is. 4326 if (Args.hasArg(OPT_fobjc_arc)) 4327 LangOpts.ObjCAutoRefCount = 1; 4328 // PIClevel and PIELevel are needed during code generation and this should be 4329 // set regardless of the input type. 4330 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 4331 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 4332 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4333 Diags, LangOpts.Sanitize); 4334 } else { 4335 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 4336 // FIXME: Should we really be calling this for an Language::Asm input? 4337 Success &= ParseLangArgs(LangOpts, Args, DashX, T, 4338 Res.getPreprocessorOpts().Includes, Diags); 4339 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4340 LangOpts.ObjCExceptions = 1; 4341 } 4342 4343 if (LangOpts.CUDA) { 4344 // During CUDA device-side compilation, the aux triple is the 4345 // triple used for host compilation. 4346 if (LangOpts.CUDAIsDevice) 4347 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4348 } 4349 4350 // Set the triple of the host for OpenMP device compile. 4351 if (LangOpts.OpenMPIsDevice) 4352 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4353 4354 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4355 Res.getFrontendOpts().OutputFile, LangOpts); 4356 4357 // FIXME: Override value name discarding when asan or msan is used because the 4358 // backend passes depend on the name of the alloca in order to print out 4359 // names. 4360 Res.getCodeGenOpts().DiscardValueNames &= 4361 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4362 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4363 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4364 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4365 4366 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4367 Res.getFrontendOpts().ProgramAction, 4368 Res.getFrontendOpts()); 4369 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4370 Res.getFrontendOpts().ProgramAction); 4371 4372 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4373 Res.getFrontendOpts().ProgramAction, 4374 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4375 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4376 Res.getDependencyOutputOpts().Targets.empty()) { 4377 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4378 Success = false; 4379 } 4380 4381 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4382 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4383 !Res.getLangOpts()->Sanitize.empty()) { 4384 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4385 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4386 } 4387 4388 // Store the command-line for using in the CodeView backend. 4389 Res.getCodeGenOpts().Argv0 = Argv0; 4390 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 4391 4392 Success &= FixupInvocation(Res, Diags, Args, DashX); 4393 4394 return Success; 4395 } 4396 4397 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4398 ArrayRef<const char *> CommandLineArgs, 4399 DiagnosticsEngine &Diags, 4400 const char *Argv0) { 4401 CompilerInvocation DummyInvocation; 4402 4403 return RoundTrip( 4404 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4405 DiagnosticsEngine &Diags, const char *Argv0) { 4406 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4407 }, 4408 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4409 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4410 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4411 } 4412 4413 std::string CompilerInvocation::getModuleHash() const { 4414 // Note: For QoI reasons, the things we use as a hash here should all be 4415 // dumped via the -module-info flag. 4416 using llvm::hash_code; 4417 using llvm::hash_value; 4418 using llvm::hash_combine; 4419 using llvm::hash_combine_range; 4420 4421 // Start the signature with the compiler version. 4422 // FIXME: We'd rather use something more cryptographically sound than 4423 // CityHash, but this will do for now. 4424 hash_code code = hash_value(getClangFullRepositoryVersion()); 4425 4426 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4427 // and getClangFullRepositoryVersion() doesn't include git revision. 4428 code = hash_combine(code, serialization::VERSION_MAJOR, 4429 serialization::VERSION_MINOR); 4430 4431 // Extend the signature with the language options 4432 #define LANGOPT(Name, Bits, Default, Description) \ 4433 code = hash_combine(code, LangOpts->Name); 4434 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4435 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 4436 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4437 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4438 #include "clang/Basic/LangOptions.def" 4439 4440 for (StringRef Feature : LangOpts->ModuleFeatures) 4441 code = hash_combine(code, Feature); 4442 4443 code = hash_combine(code, LangOpts->ObjCRuntime); 4444 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 4445 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 4446 4447 // Extend the signature with the target options. 4448 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 4449 TargetOpts->TuneCPU, TargetOpts->ABI); 4450 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 4451 code = hash_combine(code, FeatureAsWritten); 4452 4453 // Extend the signature with preprocessor options. 4454 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4455 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4456 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 4457 4458 for (const auto &I : getPreprocessorOpts().Macros) { 4459 // If we're supposed to ignore this macro for the purposes of modules, 4460 // don't put it into the hash. 4461 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4462 // Check whether we're ignoring this macro. 4463 StringRef MacroDef = I.first; 4464 if (hsOpts.ModulesIgnoreMacros.count( 4465 llvm::CachedHashString(MacroDef.split('=').first))) 4466 continue; 4467 } 4468 4469 code = hash_combine(code, I.first, I.second); 4470 } 4471 4472 // Extend the signature with the sysroot and other header search options. 4473 code = hash_combine(code, hsOpts.Sysroot, 4474 hsOpts.ModuleFormat, 4475 hsOpts.UseDebugInfo, 4476 hsOpts.UseBuiltinIncludes, 4477 hsOpts.UseStandardSystemIncludes, 4478 hsOpts.UseStandardCXXIncludes, 4479 hsOpts.UseLibcxx, 4480 hsOpts.ModulesValidateDiagnosticOptions); 4481 code = hash_combine(code, hsOpts.ResourceDir); 4482 4483 if (hsOpts.ModulesStrictContextHash) { 4484 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 4485 hsOpts.SystemHeaderPrefixes.end()); 4486 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 4487 hsOpts.UserEntries.end()); 4488 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 4489 hsOpts.UserEntries.size(), UEC); 4490 4491 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4492 #define DIAGOPT(Name, Bits, Default) \ 4493 code = hash_combine(code, diagOpts.Name); 4494 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4495 code = hash_combine(code, diagOpts.get##Name()); 4496 #include "clang/Basic/DiagnosticOptions.def" 4497 #undef DIAGOPT 4498 #undef ENUM_DIAGOPT 4499 } 4500 4501 // Extend the signature with the user build path. 4502 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 4503 4504 // Extend the signature with the module file extensions. 4505 const FrontendOptions &frontendOpts = getFrontendOpts(); 4506 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 4507 code = ext->hashExtension(code); 4508 } 4509 4510 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4511 // affects the debug info in the PCM. 4512 if (getCodeGenOpts().DebugTypeExtRefs) 4513 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 4514 code = hash_combine(code, KeyValue.first, KeyValue.second); 4515 4516 // Extend the signature with the enabled sanitizers, if at least one is 4517 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4518 SanitizerSet SanHash = LangOpts->Sanitize; 4519 SanHash.clear(getPPTransparentSanitizers()); 4520 if (!SanHash.empty()) 4521 code = hash_combine(code, SanHash.Mask); 4522 4523 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 4524 } 4525 4526 void CompilerInvocation::generateCC1CommandLine( 4527 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4528 llvm::Triple T(TargetOpts->Triple); 4529 4530 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4531 GenerateMigratorArgs(MigratorOpts, Args, SA); 4532 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4533 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4534 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4535 GenerateTargetArgs(*TargetOpts, Args, SA); 4536 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4537 4538 InputKind DashX = FrontendOpts.DashX; 4539 if (DashX.getFormat() == InputKind::Precompiled || 4540 DashX.getLanguage() == Language::LLVM_IR) { 4541 if (LangOpts->ObjCAutoRefCount) 4542 GenerateArg(Args, OPT_fobjc_arc, SA); 4543 if (LangOpts->PICLevel != 0) 4544 GenerateArg(Args, OPT_pic_level, Twine(LangOpts->PICLevel), SA); 4545 if (LangOpts->PIE) 4546 GenerateArg(Args, OPT_pic_is_pie, SA); 4547 for (StringRef Sanitizer : serializeSanitizerKinds(LangOpts->Sanitize)) 4548 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 4549 } else { 4550 // FIXME: Move this whole condition into GenerateLangArgs. (And do the same 4551 // for ParseLangArgs). 4552 GenerateLangArgs(*LangOpts, Args, SA, T); 4553 } 4554 4555 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4556 &*LangOpts); 4557 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4558 CodeGenOpts); 4559 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4560 FrontendOpts.ProgramAction); 4561 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4562 } 4563 4564 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4565 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4566 DiagnosticsEngine &Diags) { 4567 return createVFSFromCompilerInvocation(CI, Diags, 4568 llvm::vfs::getRealFileSystem()); 4569 } 4570 4571 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4572 clang::createVFSFromCompilerInvocation( 4573 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4574 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4575 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4576 return BaseFS; 4577 4578 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4579 // earlier vfs files are on the bottom 4580 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4581 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4582 Result->getBufferForFile(File); 4583 if (!Buffer) { 4584 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4585 continue; 4586 } 4587 4588 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4589 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4590 /*DiagContext*/ nullptr, Result); 4591 if (!FS) { 4592 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4593 continue; 4594 } 4595 4596 Result = FS; 4597 } 4598 return Result; 4599 } 4600