1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticDriver.h" 18 #include "clang/Basic/DiagnosticOptions.h" 19 #include "clang/Basic/FileSystemOptions.h" 20 #include "clang/Basic/LLVM.h" 21 #include "clang/Basic/LangOptions.h" 22 #include "clang/Basic/LangStandard.h" 23 #include "clang/Basic/ObjCRuntime.h" 24 #include "clang/Basic/Sanitizers.h" 25 #include "clang/Basic/SourceLocation.h" 26 #include "clang/Basic/TargetOptions.h" 27 #include "clang/Basic/Version.h" 28 #include "clang/Basic/Visibility.h" 29 #include "clang/Basic/XRayInstr.h" 30 #include "clang/Config/config.h" 31 #include "clang/Driver/Driver.h" 32 #include "clang/Driver/DriverDiagnostic.h" 33 #include "clang/Driver/Options.h" 34 #include "clang/Frontend/CommandLineSourceLoc.h" 35 #include "clang/Frontend/DependencyOutputOptions.h" 36 #include "clang/Frontend/FrontendDiagnostic.h" 37 #include "clang/Frontend/FrontendOptions.h" 38 #include "clang/Frontend/FrontendPluginRegistry.h" 39 #include "clang/Frontend/MigratorOptions.h" 40 #include "clang/Frontend/PreprocessorOutputOptions.h" 41 #include "clang/Frontend/TextDiagnosticBuffer.h" 42 #include "clang/Frontend/Utils.h" 43 #include "clang/Lex/HeaderSearchOptions.h" 44 #include "clang/Lex/PreprocessorOptions.h" 45 #include "clang/Sema/CodeCompleteOptions.h" 46 #include "clang/Serialization/ASTBitCodes.h" 47 #include "clang/Serialization/ModuleFileExtension.h" 48 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 49 #include "llvm/ADT/APInt.h" 50 #include "llvm/ADT/ArrayRef.h" 51 #include "llvm/ADT/CachedHashString.h" 52 #include "llvm/ADT/DenseSet.h" 53 #include "llvm/ADT/FloatingPointMode.h" 54 #include "llvm/ADT/Hashing.h" 55 #include "llvm/ADT/None.h" 56 #include "llvm/ADT/Optional.h" 57 #include "llvm/ADT/STLExtras.h" 58 #include "llvm/ADT/SmallString.h" 59 #include "llvm/ADT/SmallVector.h" 60 #include "llvm/ADT/StringRef.h" 61 #include "llvm/ADT/StringSwitch.h" 62 #include "llvm/ADT/Triple.h" 63 #include "llvm/ADT/Twine.h" 64 #include "llvm/Config/llvm-config.h" 65 #include "llvm/IR/DebugInfoMetadata.h" 66 #include "llvm/Linker/Linker.h" 67 #include "llvm/MC/MCTargetOptions.h" 68 #include "llvm/Option/Arg.h" 69 #include "llvm/Option/ArgList.h" 70 #include "llvm/Option/OptSpecifier.h" 71 #include "llvm/Option/OptTable.h" 72 #include "llvm/Option/Option.h" 73 #include "llvm/ProfileData/InstrProfReader.h" 74 #include "llvm/Remarks/HotnessThresholdParser.h" 75 #include "llvm/Support/CodeGen.h" 76 #include "llvm/Support/Compiler.h" 77 #include "llvm/Support/Error.h" 78 #include "llvm/Support/ErrorHandling.h" 79 #include "llvm/Support/ErrorOr.h" 80 #include "llvm/Support/FileSystem.h" 81 #include "llvm/Support/Host.h" 82 #include "llvm/Support/MathExtras.h" 83 #include "llvm/Support/MemoryBuffer.h" 84 #include "llvm/Support/Path.h" 85 #include "llvm/Support/Process.h" 86 #include "llvm/Support/Regex.h" 87 #include "llvm/Support/VersionTuple.h" 88 #include "llvm/Support/VirtualFileSystem.h" 89 #include "llvm/Support/raw_ostream.h" 90 #include "llvm/Target/TargetOptions.h" 91 #include <algorithm> 92 #include <atomic> 93 #include <cassert> 94 #include <cstddef> 95 #include <cstring> 96 #include <memory> 97 #include <string> 98 #include <tuple> 99 #include <type_traits> 100 #include <utility> 101 #include <vector> 102 103 using namespace clang; 104 using namespace driver; 105 using namespace options; 106 using namespace llvm::opt; 107 108 //===----------------------------------------------------------------------===// 109 // Initialization. 110 //===----------------------------------------------------------------------===// 111 112 CompilerInvocationBase::CompilerInvocationBase() 113 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 114 DiagnosticOpts(new DiagnosticOptions()), 115 HeaderSearchOpts(new HeaderSearchOptions()), 116 PreprocessorOpts(new PreprocessorOptions()), 117 AnalyzerOpts(new AnalyzerOptions()) {} 118 119 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 120 : LangOpts(new LangOptions(*X.getLangOpts())), 121 TargetOpts(new TargetOptions(X.getTargetOpts())), 122 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 123 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 124 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 125 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 126 127 CompilerInvocationBase::~CompilerInvocationBase() = default; 128 129 //===----------------------------------------------------------------------===// 130 // Normalizers 131 //===----------------------------------------------------------------------===// 132 133 #define SIMPLE_ENUM_VALUE_TABLE 134 #include "clang/Driver/Options.inc" 135 #undef SIMPLE_ENUM_VALUE_TABLE 136 137 static llvm::Optional<bool> 138 normalizeSimpleFlag(OptSpecifier Opt, unsigned TableIndex, const ArgList &Args, 139 DiagnosticsEngine &Diags, bool &Success) { 140 if (Args.hasArg(Opt)) 141 return true; 142 return None; 143 } 144 145 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 146 const ArgList &Args, 147 DiagnosticsEngine &, 148 bool &Success) { 149 if (Args.hasArg(Opt)) 150 return false; 151 return None; 152 } 153 154 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 155 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 156 /// unnecessary template instantiations and just ignore it with a variadic 157 /// argument. 158 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 159 const char *Spelling, 160 CompilerInvocation::StringAllocator, 161 Option::OptionClass, unsigned, /*T*/...) { 162 Args.push_back(Spelling); 163 } 164 165 template <typename T> static constexpr bool is_uint64_t_convertible() { 166 return !std::is_same<T, uint64_t>::value && 167 llvm::is_integral_or_enum<T>::value; 168 } 169 170 template <typename T, 171 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 172 static auto makeFlagToValueNormalizer(T Value) { 173 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 174 DiagnosticsEngine &, bool &Success) -> Optional<T> { 175 if (Args.hasArg(Opt)) 176 return Value; 177 return None; 178 }; 179 } 180 181 template <typename T, 182 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 183 static auto makeFlagToValueNormalizer(T Value) { 184 return makeFlagToValueNormalizer(uint64_t(Value)); 185 } 186 187 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 188 OptSpecifier OtherOpt) { 189 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 190 const ArgList &Args, DiagnosticsEngine &, 191 bool &Success) -> Optional<bool> { 192 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 193 return A->getOption().matches(Opt) ? Value : OtherValue; 194 } 195 return None; 196 }; 197 } 198 199 static auto makeBooleanOptionDenormalizer(bool Value) { 200 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 201 CompilerInvocation::StringAllocator, Option::OptionClass, 202 unsigned, bool KeyPath) { 203 if (KeyPath == Value) 204 Args.push_back(Spelling); 205 }; 206 } 207 208 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 209 const char *Spelling, 210 CompilerInvocation::StringAllocator SA, 211 Option::OptionClass OptClass, unsigned, 212 const Twine &Value) { 213 switch (OptClass) { 214 case Option::SeparateClass: 215 case Option::JoinedOrSeparateClass: 216 case Option::JoinedAndSeparateClass: 217 Args.push_back(Spelling); 218 Args.push_back(SA(Value)); 219 break; 220 case Option::JoinedClass: 221 case Option::CommaJoinedClass: 222 Args.push_back(SA(Twine(Spelling) + Value)); 223 break; 224 default: 225 llvm_unreachable("Cannot denormalize an option with option class " 226 "incompatible with string denormalization."); 227 } 228 } 229 230 template <typename T> 231 static void 232 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 233 CompilerInvocation::StringAllocator SA, 234 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 235 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 236 } 237 238 static Optional<SimpleEnumValue> 239 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 240 for (int I = 0, E = Table.Size; I != E; ++I) 241 if (Name == Table.Table[I].Name) 242 return Table.Table[I]; 243 244 return None; 245 } 246 247 static Optional<SimpleEnumValue> 248 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 249 for (int I = 0, E = Table.Size; I != E; ++I) 250 if (Value == Table.Table[I].Value) 251 return Table.Table[I]; 252 253 return None; 254 } 255 256 static llvm::Optional<unsigned> 257 normalizeSimpleEnum(OptSpecifier Opt, unsigned TableIndex, const ArgList &Args, 258 DiagnosticsEngine &Diags, bool &Success) { 259 assert(TableIndex < SimpleEnumValueTablesSize); 260 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 261 262 auto *Arg = Args.getLastArg(Opt); 263 if (!Arg) 264 return None; 265 266 StringRef ArgValue = Arg->getValue(); 267 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 268 return MaybeEnumVal->Value; 269 270 Success = false; 271 Diags.Report(diag::err_drv_invalid_value) 272 << Arg->getAsString(Args) << ArgValue; 273 return None; 274 } 275 276 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 277 const char *Spelling, 278 CompilerInvocation::StringAllocator SA, 279 Option::OptionClass OptClass, 280 unsigned TableIndex, unsigned Value) { 281 assert(TableIndex < SimpleEnumValueTablesSize); 282 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 283 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 284 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 285 MaybeEnumVal->Name); 286 } else { 287 llvm_unreachable("The simple enum value was not correctly defined in " 288 "the tablegen option description"); 289 } 290 } 291 292 template <typename T> 293 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 294 const char *Spelling, 295 CompilerInvocation::StringAllocator SA, 296 Option::OptionClass OptClass, 297 unsigned TableIndex, T Value) { 298 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 299 static_cast<unsigned>(Value)); 300 } 301 302 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 303 const ArgList &Args, 304 DiagnosticsEngine &Diags, 305 bool &Success) { 306 auto *Arg = Args.getLastArg(Opt); 307 if (!Arg) 308 return None; 309 return std::string(Arg->getValue()); 310 } 311 312 template <typename IntTy> 313 static Optional<IntTy> 314 normalizeStringIntegral(OptSpecifier Opt, int, const ArgList &Args, 315 DiagnosticsEngine &Diags, bool &Success) { 316 auto *Arg = Args.getLastArg(Opt); 317 if (!Arg) 318 return None; 319 IntTy Res; 320 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 321 Success = false; 322 Diags.Report(diag::err_drv_invalid_int_value) 323 << Arg->getAsString(Args) << Arg->getValue(); 324 return None; 325 } 326 return Res; 327 } 328 329 static Optional<std::vector<std::string>> 330 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 331 DiagnosticsEngine &, bool &Success) { 332 return Args.getAllArgValues(Opt); 333 } 334 335 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 336 const char *Spelling, 337 CompilerInvocation::StringAllocator SA, 338 Option::OptionClass OptClass, 339 unsigned TableIndex, 340 const std::vector<std::string> &Values) { 341 switch (OptClass) { 342 case Option::CommaJoinedClass: { 343 std::string CommaJoinedValue; 344 if (!Values.empty()) { 345 CommaJoinedValue.append(Values.front()); 346 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 347 CommaJoinedValue.append(","); 348 CommaJoinedValue.append(Value); 349 } 350 } 351 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 352 TableIndex, CommaJoinedValue); 353 break; 354 } 355 case Option::JoinedClass: 356 case Option::SeparateClass: 357 case Option::JoinedOrSeparateClass: 358 for (const std::string &Value : Values) 359 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 360 break; 361 default: 362 llvm_unreachable("Cannot denormalize an option with option class " 363 "incompatible with string vector denormalization."); 364 } 365 } 366 367 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 368 const ArgList &Args, 369 DiagnosticsEngine &Diags, 370 bool &Success) { 371 auto *Arg = Args.getLastArg(Opt); 372 if (!Arg) 373 return None; 374 return llvm::Triple::normalize(Arg->getValue()); 375 } 376 377 template <typename T, typename U> 378 static T mergeForwardValue(T KeyPath, U Value) { 379 return static_cast<T>(Value); 380 } 381 382 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 383 return KeyPath | Value; 384 } 385 386 template <typename T> static T extractForwardValue(T KeyPath) { 387 return KeyPath; 388 } 389 390 template <typename T, typename U, U Value> 391 static T extractMaskValue(T KeyPath) { 392 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 393 } 394 395 #define PARSE_OPTION_WITH_MARSHALLING(ARGS, DIAGS, SUCCESS, ID, FLAGS, PARAM, \ 396 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 397 IMPLIED_CHECK, IMPLIED_VALUE, \ 398 NORMALIZER, MERGER, TABLE_INDEX) \ 399 if ((FLAGS)&options::CC1Option) { \ 400 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 401 if (IMPLIED_CHECK) \ 402 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 403 if (SHOULD_PARSE) \ 404 if (auto MaybeValue = \ 405 NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS, SUCCESS)) \ 406 KEYPATH = \ 407 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 408 } 409 410 // Capture the extracted value as a lambda argument to avoid potential issues 411 // with lifetime extension of the reference. 412 #define GENERATE_OPTION_WITH_MARSHALLING( \ 413 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 414 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 415 TABLE_INDEX) \ 416 if ((FLAGS)&options::CC1Option) { \ 417 [&](const auto &Extracted) { \ 418 if (ALWAYS_EMIT || \ 419 (Extracted != \ 420 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 421 : (DEFAULT_VALUE)))) \ 422 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 423 TABLE_INDEX, Extracted); \ 424 }(EXTRACTOR(KEYPATH)); \ 425 } 426 427 static const StringRef GetInputKindName(InputKind IK); 428 429 static bool FixupInvocation(CompilerInvocation &Invocation, 430 DiagnosticsEngine &Diags, const ArgList &Args, 431 InputKind IK) { 432 unsigned NumErrorsBefore = Diags.getNumErrors(); 433 434 LangOptions &LangOpts = *Invocation.getLangOpts(); 435 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 436 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 437 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 438 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 439 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 440 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 441 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 442 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 443 444 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 445 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 446 LangOpts.CurrentModule = LangOpts.ModuleName; 447 448 llvm::Triple T(TargetOpts.Triple); 449 llvm::Triple::ArchType Arch = T.getArch(); 450 451 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 452 453 if (LangOpts.getExceptionHandling() != llvm::ExceptionHandling::None && 454 T.isWindowsMSVCEnvironment()) 455 Diags.Report(diag::err_fe_invalid_exception_model) 456 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 457 458 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 459 Diags.Report(diag::warn_c_kext); 460 461 if (Args.hasArg(OPT_fconcepts_ts)) 462 Diags.Report(diag::warn_fe_concepts_ts_flag); 463 464 if (LangOpts.NewAlignOverride && 465 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 466 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 467 Diags.Report(diag::err_fe_invalid_alignment) 468 << A->getAsString(Args) << A->getValue(); 469 LangOpts.NewAlignOverride = 0; 470 } 471 472 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 473 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 474 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 475 << "-fsycl-is-host"; 476 477 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 478 Diags.Report(diag::err_drv_argument_not_allowed_with) 479 << "-fgnu89-inline" << GetInputKindName(IK); 480 481 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 482 Diags.Report(diag::warn_ignored_hip_only_option) 483 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 484 485 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 486 Diags.Report(diag::warn_ignored_hip_only_option) 487 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 488 489 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 490 // This option should be deprecated for CL > 1.0 because 491 // this option was added for compatibility with OpenCL 1.0. 492 if (Args.getLastArg(OPT_cl_strict_aliasing) && LangOpts.OpenCLVersion > 100) 493 Diags.Report(diag::warn_option_invalid_ocl_version) 494 << LangOpts.getOpenCLVersionTuple().getAsString() 495 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 496 497 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 498 auto DefaultCC = LangOpts.getDefaultCallingConv(); 499 500 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 501 DefaultCC == LangOptions::DCC_StdCall) && 502 Arch != llvm::Triple::x86; 503 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 504 DefaultCC == LangOptions::DCC_RegCall) && 505 !T.isX86(); 506 if (emitError) 507 Diags.Report(diag::err_drv_argument_not_allowed_with) 508 << A->getSpelling() << T.getTriple(); 509 } 510 511 if (!CodeGenOpts.ProfileRemappingFile.empty() && CodeGenOpts.LegacyPassManager) 512 Diags.Report(diag::err_drv_argument_only_allowed_with) 513 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 514 << "-fno-legacy-pass-manager"; 515 516 return Diags.getNumErrors() == NumErrorsBefore; 517 } 518 519 //===----------------------------------------------------------------------===// 520 // Deserialization (from args) 521 //===----------------------------------------------------------------------===// 522 523 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 524 DiagnosticsEngine &Diags) { 525 unsigned DefaultOpt = llvm::CodeGenOpt::None; 526 if ((IK.getLanguage() == Language::OpenCL || 527 IK.getLanguage() == Language::OpenCLCXX) && 528 !Args.hasArg(OPT_cl_opt_disable)) 529 DefaultOpt = llvm::CodeGenOpt::Default; 530 531 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 532 if (A->getOption().matches(options::OPT_O0)) 533 return llvm::CodeGenOpt::None; 534 535 if (A->getOption().matches(options::OPT_Ofast)) 536 return llvm::CodeGenOpt::Aggressive; 537 538 assert(A->getOption().matches(options::OPT_O)); 539 540 StringRef S(A->getValue()); 541 if (S == "s" || S == "z") 542 return llvm::CodeGenOpt::Default; 543 544 if (S == "g") 545 return llvm::CodeGenOpt::Less; 546 547 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 548 } 549 550 return DefaultOpt; 551 } 552 553 static unsigned getOptimizationLevelSize(ArgList &Args) { 554 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 555 if (A->getOption().matches(options::OPT_O)) { 556 switch (A->getValue()[0]) { 557 default: 558 return 0; 559 case 's': 560 return 1; 561 case 'z': 562 return 2; 563 } 564 } 565 } 566 return 0; 567 } 568 569 static void GenerateArg(SmallVectorImpl<const char *> &Args, 570 llvm::opt::OptSpecifier OptSpecifier, 571 CompilerInvocation::StringAllocator SA) { 572 Option Opt = getDriverOptTable().getOption(OptSpecifier); 573 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 574 Option::OptionClass::FlagClass, 0); 575 } 576 577 static void GenerateArg(SmallVectorImpl<const char *> &Args, 578 llvm::opt::OptSpecifier OptSpecifier, 579 const Twine &Value, 580 CompilerInvocation::StringAllocator SA) { 581 Option Opt = getDriverOptTable().getOption(OptSpecifier); 582 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 583 Opt.getKind(), 0, Value); 584 } 585 586 // Parse command line arguments into CompilerInvocation. 587 using ParseFn = 588 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 589 DiagnosticsEngine &, const char *)>; 590 591 // Generate command line arguments from CompilerInvocation. 592 using GenerateFn = llvm::function_ref<void( 593 CompilerInvocation &, SmallVectorImpl<const char *> &, 594 CompilerInvocation::StringAllocator)>; 595 596 // May perform round-trip of command line arguments. By default, the round-trip 597 // is enabled if CLANG_ROUND_TRIP_CC1_ARGS was defined during build. This can be 598 // overwritten at run-time via the "-round-trip-args" and "-no-round-trip-args" 599 // command line flags. 600 // During round-trip, the command line arguments are parsed into a dummy 601 // instance of CompilerInvocation which is used to generate the command line 602 // arguments again. The real CompilerInvocation instance is then created by 603 // parsing the generated arguments, not the original ones. 604 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 605 CompilerInvocation &RealInvocation, 606 CompilerInvocation &DummyInvocation, 607 ArrayRef<const char *> CommandLineArgs, 608 DiagnosticsEngine &Diags, const char *Argv0) { 609 // FIXME: Switch to '#ifndef NDEBUG' when possible. 610 #ifdef CLANG_ROUND_TRIP_CC1_ARGS 611 bool DoRoundTripDefault = true; 612 #else 613 bool DoRoundTripDefault = false; 614 #endif 615 616 bool DoRoundTrip = DoRoundTripDefault; 617 for (const auto *Arg : CommandLineArgs) { 618 if (Arg == StringRef("-round-trip-args")) 619 DoRoundTrip = true; 620 if (Arg == StringRef("-no-round-trip-args")) 621 DoRoundTrip = false; 622 } 623 624 // If round-trip was not requested, simply run the parser with the real 625 // invocation diagnostics. 626 if (!DoRoundTrip) 627 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 628 629 // Serializes quoted (and potentially escaped) arguments. 630 auto SerializeArgs = [](ArrayRef<const char *> Args) { 631 std::string Buffer; 632 llvm::raw_string_ostream OS(Buffer); 633 for (const char *Arg : Args) { 634 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 635 OS << ' '; 636 } 637 OS.flush(); 638 return Buffer; 639 }; 640 641 // Setup a dummy DiagnosticsEngine. 642 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 643 DummyDiags.setClient(new TextDiagnosticBuffer()); 644 645 // Run the first parse on the original arguments with the dummy invocation and 646 // diagnostics. 647 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 648 DummyDiags.getNumWarnings() != 0) { 649 // If the first parse did not succeed, it must be user mistake (invalid 650 // command line arguments). We won't be able to generate arguments that 651 // would reproduce the same result. Let's fail again with the real 652 // invocation and diagnostics, so all side-effects of parsing are visible. 653 unsigned NumWarningsBefore = Diags.getNumWarnings(); 654 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 655 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 656 return Success; 657 658 // Parse with original options and diagnostics succeeded even though it 659 // shouldn't have. Something is off. 660 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 661 Diags.Report(diag::note_cc1_round_trip_original) 662 << SerializeArgs(CommandLineArgs); 663 return false; 664 } 665 666 // Setup string allocator. 667 llvm::BumpPtrAllocator Alloc; 668 llvm::StringSaver StringPool(Alloc); 669 auto SA = [&StringPool](const Twine &Arg) { 670 return StringPool.save(Arg).data(); 671 }; 672 673 // Generate arguments from the dummy invocation. If Generate is the 674 // inverse of Parse, the newly generated arguments must have the same 675 // semantics as the original. 676 SmallVector<const char *> GeneratedArgs1; 677 Generate(DummyInvocation, GeneratedArgs1, SA); 678 679 // Run the second parse, now on the generated arguments, and with the real 680 // invocation and diagnostics. The result is what we will end up using for the 681 // rest of compilation, so if Generate is not inverse of Parse, something down 682 // the line will break. 683 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 684 685 // The first parse on original arguments succeeded, but second parse of 686 // generated arguments failed. Something must be wrong with the generator. 687 if (!Success2) { 688 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 689 Diags.Report(diag::note_cc1_round_trip_generated) 690 << 1 << SerializeArgs(GeneratedArgs1); 691 return false; 692 } 693 694 // Generate arguments again, this time from the options we will end up using 695 // for the rest of the compilation. 696 SmallVector<const char *> GeneratedArgs2; 697 Generate(RealInvocation, GeneratedArgs2, SA); 698 699 // Compares two lists of generated arguments. 700 auto Equal = [](const ArrayRef<const char *> A, 701 const ArrayRef<const char *> B) { 702 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 703 [](const char *AElem, const char *BElem) { 704 return StringRef(AElem) == StringRef(BElem); 705 }); 706 }; 707 708 // If we generated different arguments from what we assume are two 709 // semantically equivalent CompilerInvocations, the Generate function may 710 // be non-deterministic. 711 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 712 Diags.Report(diag::err_cc1_round_trip_mismatch); 713 Diags.Report(diag::note_cc1_round_trip_generated) 714 << 1 << SerializeArgs(GeneratedArgs1); 715 Diags.Report(diag::note_cc1_round_trip_generated) 716 << 2 << SerializeArgs(GeneratedArgs2); 717 return false; 718 } 719 720 Diags.Report(diag::remark_cc1_round_trip_generated) 721 << 1 << SerializeArgs(GeneratedArgs1); 722 Diags.Report(diag::remark_cc1_round_trip_generated) 723 << 2 << SerializeArgs(GeneratedArgs2); 724 725 return Success2; 726 } 727 728 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 729 OptSpecifier GroupWithValue, 730 std::vector<std::string> &Diagnostics) { 731 for (auto *A : Args.filtered(Group)) { 732 if (A->getOption().getKind() == Option::FlagClass) { 733 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 734 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 735 Diagnostics.push_back( 736 std::string(A->getOption().getName().drop_front(1))); 737 } else if (A->getOption().matches(GroupWithValue)) { 738 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 739 // group. Add only the group name to the diagnostics. 740 Diagnostics.push_back( 741 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 742 } else { 743 // Otherwise, add its value (for OPT_W_Joined and similar). 744 Diagnostics.push_back(A->getValue()); 745 } 746 } 747 } 748 749 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 750 // it won't verify the input. 751 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 752 DiagnosticsEngine *Diags); 753 754 static void getAllNoBuiltinFuncValues(ArgList &Args, 755 std::vector<std::string> &Funcs) { 756 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 757 auto BuiltinEnd = llvm::partition(Values, [](const std::string FuncName) { 758 return Builtin::Context::isBuiltinFunc(FuncName); 759 }); 760 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 761 } 762 763 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 764 SmallVectorImpl<const char *> &Args, 765 CompilerInvocation::StringAllocator SA) { 766 const AnalyzerOptions *AnalyzerOpts = &Opts; 767 768 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 769 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 770 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 771 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 772 MERGER, EXTRACTOR, TABLE_INDEX) \ 773 GENERATE_OPTION_WITH_MARSHALLING( \ 774 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 775 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 776 #include "clang/Driver/Options.inc" 777 #undef ANALYZER_OPTION_WITH_MARSHALLING 778 779 if (Opts.AnalysisStoreOpt != RegionStoreModel) { 780 switch (Opts.AnalysisStoreOpt) { 781 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 782 case NAME##Model: \ 783 GenerateArg(Args, OPT_analyzer_store, CMDFLAG, SA); \ 784 break; 785 #include "clang/StaticAnalyzer/Core/Analyses.def" 786 default: 787 llvm_unreachable("Tried to generate unknown analysis store."); 788 } 789 } 790 791 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 792 switch (Opts.AnalysisConstraintsOpt) { 793 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 794 case NAME##Model: \ 795 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 796 break; 797 #include "clang/StaticAnalyzer/Core/Analyses.def" 798 default: 799 llvm_unreachable("Tried to generate unknown analysis constraint."); 800 } 801 } 802 803 if (Opts.AnalysisDiagOpt != PD_HTML) { 804 switch (Opts.AnalysisDiagOpt) { 805 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 806 case PD_##NAME: \ 807 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 808 break; 809 #include "clang/StaticAnalyzer/Core/Analyses.def" 810 default: 811 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 812 } 813 } 814 815 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 816 switch (Opts.AnalysisPurgeOpt) { 817 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 818 case NAME: \ 819 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 820 break; 821 #include "clang/StaticAnalyzer/Core/Analyses.def" 822 default: 823 llvm_unreachable("Tried to generate unknown analysis purge mode."); 824 } 825 } 826 827 if (Opts.InliningMode != NoRedundancy) { 828 switch (Opts.InliningMode) { 829 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 830 case NAME: \ 831 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 832 break; 833 #include "clang/StaticAnalyzer/Core/Analyses.def" 834 default: 835 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 836 } 837 } 838 839 for (const auto &CP : Opts.CheckersAndPackages) { 840 OptSpecifier Opt = 841 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 842 GenerateArg(Args, Opt, CP.first, SA); 843 } 844 845 AnalyzerOptions ConfigOpts; 846 parseAnalyzerConfigs(ConfigOpts, nullptr); 847 848 for (const auto &C : Opts.Config) { 849 // Don't generate anything that came from parseAnalyzerConfigs. It would be 850 // redundant and may not be valid on the command line. 851 auto Entry = ConfigOpts.Config.find(C.getKey()); 852 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 853 continue; 854 855 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 856 } 857 858 // Nothing to generate for FullCompilerInvocation. 859 } 860 861 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 862 DiagnosticsEngine &Diags) { 863 AnalyzerOptions *AnalyzerOpts = &Opts; 864 bool Success = true; 865 866 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 867 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 868 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 869 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 870 MERGER, EXTRACTOR, TABLE_INDEX) \ 871 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 872 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 873 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 874 MERGER, TABLE_INDEX) 875 #include "clang/Driver/Options.inc" 876 #undef ANALYZER_OPTION_WITH_MARSHALLING 877 878 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 879 StringRef Name = A->getValue(); 880 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 881 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 882 .Case(CMDFLAG, NAME##Model) 883 #include "clang/StaticAnalyzer/Core/Analyses.def" 884 .Default(NumStores); 885 if (Value == NumStores) { 886 Diags.Report(diag::err_drv_invalid_value) 887 << A->getAsString(Args) << Name; 888 Success = false; 889 } else { 890 Opts.AnalysisStoreOpt = Value; 891 } 892 } 893 894 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 895 StringRef Name = A->getValue(); 896 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 897 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 898 .Case(CMDFLAG, NAME##Model) 899 #include "clang/StaticAnalyzer/Core/Analyses.def" 900 .Default(NumConstraints); 901 if (Value == NumConstraints) { 902 Diags.Report(diag::err_drv_invalid_value) 903 << A->getAsString(Args) << Name; 904 Success = false; 905 } else { 906 Opts.AnalysisConstraintsOpt = Value; 907 } 908 } 909 910 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 911 StringRef Name = A->getValue(); 912 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 913 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 914 .Case(CMDFLAG, PD_##NAME) 915 #include "clang/StaticAnalyzer/Core/Analyses.def" 916 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 917 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 918 Diags.Report(diag::err_drv_invalid_value) 919 << A->getAsString(Args) << Name; 920 Success = false; 921 } else { 922 Opts.AnalysisDiagOpt = Value; 923 } 924 } 925 926 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 927 StringRef Name = A->getValue(); 928 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 929 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 930 .Case(CMDFLAG, NAME) 931 #include "clang/StaticAnalyzer/Core/Analyses.def" 932 .Default(NumPurgeModes); 933 if (Value == NumPurgeModes) { 934 Diags.Report(diag::err_drv_invalid_value) 935 << A->getAsString(Args) << Name; 936 Success = false; 937 } else { 938 Opts.AnalysisPurgeOpt = Value; 939 } 940 } 941 942 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 943 StringRef Name = A->getValue(); 944 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 945 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 946 .Case(CMDFLAG, NAME) 947 #include "clang/StaticAnalyzer/Core/Analyses.def" 948 .Default(NumInliningModes); 949 if (Value == NumInliningModes) { 950 Diags.Report(diag::err_drv_invalid_value) 951 << A->getAsString(Args) << Name; 952 Success = false; 953 } else { 954 Opts.InliningMode = Value; 955 } 956 } 957 958 Opts.CheckersAndPackages.clear(); 959 for (const Arg *A : 960 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 961 A->claim(); 962 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 963 // We can have a list of comma separated checker names, e.g: 964 // '-analyzer-checker=cocoa,unix' 965 StringRef CheckerAndPackageList = A->getValue(); 966 SmallVector<StringRef, 16> CheckersAndPackages; 967 CheckerAndPackageList.split(CheckersAndPackages, ","); 968 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 969 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 970 IsEnabled); 971 } 972 973 // Go through the analyzer configuration options. 974 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 975 976 // We can have a list of comma separated config names, e.g: 977 // '-analyzer-config key1=val1,key2=val2' 978 StringRef configList = A->getValue(); 979 SmallVector<StringRef, 4> configVals; 980 configList.split(configVals, ","); 981 for (const auto &configVal : configVals) { 982 StringRef key, val; 983 std::tie(key, val) = configVal.split("="); 984 if (val.empty()) { 985 Diags.Report(SourceLocation(), 986 diag::err_analyzer_config_no_value) << configVal; 987 Success = false; 988 break; 989 } 990 if (val.find('=') != StringRef::npos) { 991 Diags.Report(SourceLocation(), 992 diag::err_analyzer_config_multiple_values) 993 << configVal; 994 Success = false; 995 break; 996 } 997 998 // TODO: Check checker options too, possibly in CheckerRegistry. 999 // Leave unknown non-checker configs unclaimed. 1000 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1001 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) { 1002 Diags.Report(diag::err_analyzer_config_unknown) << key; 1003 Success = false; 1004 } 1005 continue; 1006 } 1007 1008 A->claim(); 1009 Opts.Config[key] = std::string(val); 1010 } 1011 } 1012 1013 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1014 parseAnalyzerConfigs(Opts, &Diags); 1015 else 1016 parseAnalyzerConfigs(Opts, nullptr); 1017 1018 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1019 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1020 if (i != 0) 1021 os << " "; 1022 os << Args.getArgString(i); 1023 } 1024 os.flush(); 1025 1026 return Success; 1027 } 1028 1029 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1030 StringRef OptionName, StringRef DefaultVal) { 1031 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1032 } 1033 1034 static void initOption(AnalyzerOptions::ConfigTable &Config, 1035 DiagnosticsEngine *Diags, 1036 StringRef &OptionField, StringRef Name, 1037 StringRef DefaultVal) { 1038 // String options may be known to invalid (e.g. if the expected string is a 1039 // file name, but the file does not exist), those will have to be checked in 1040 // parseConfigs. 1041 OptionField = getStringOption(Config, Name, DefaultVal); 1042 } 1043 1044 static void initOption(AnalyzerOptions::ConfigTable &Config, 1045 DiagnosticsEngine *Diags, 1046 bool &OptionField, StringRef Name, bool DefaultVal) { 1047 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1048 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1049 .Case("true", true) 1050 .Case("false", false) 1051 .Default(None); 1052 1053 if (!PossiblyInvalidVal) { 1054 if (Diags) 1055 Diags->Report(diag::err_analyzer_config_invalid_input) 1056 << Name << "a boolean"; 1057 else 1058 OptionField = DefaultVal; 1059 } else 1060 OptionField = PossiblyInvalidVal.getValue(); 1061 } 1062 1063 static void initOption(AnalyzerOptions::ConfigTable &Config, 1064 DiagnosticsEngine *Diags, 1065 unsigned &OptionField, StringRef Name, 1066 unsigned DefaultVal) { 1067 1068 OptionField = DefaultVal; 1069 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1070 .getAsInteger(0, OptionField); 1071 if (Diags && HasFailed) 1072 Diags->Report(diag::err_analyzer_config_invalid_input) 1073 << Name << "an unsigned"; 1074 } 1075 1076 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1077 DiagnosticsEngine *Diags) { 1078 // TODO: There's no need to store the entire configtable, it'd be plenty 1079 // enough tostore checker options. 1080 1081 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1082 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1083 1084 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1085 SHALLOW_VAL, DEEP_VAL) \ 1086 switch (AnOpts.getUserMode()) { \ 1087 case UMK_Shallow: \ 1088 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 1089 break; \ 1090 case UMK_Deep: \ 1091 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 1092 break; \ 1093 } \ 1094 1095 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1096 #undef ANALYZER_OPTION 1097 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 1098 1099 // At this point, AnalyzerOptions is configured. Let's validate some options. 1100 1101 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1102 // The current approach only validates the registered checkers which does not 1103 // contain the runtime enabled checkers and optimally we would validate both. 1104 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1105 std::vector<StringRef> Checkers = 1106 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1107 std::vector<StringRef> Packages = 1108 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1109 1110 SmallVector<StringRef, 16> CheckersAndPackages; 1111 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1112 1113 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1114 if (Diags) { 1115 bool IsChecker = CheckerOrPackage.contains('.'); 1116 bool IsValidName = 1117 IsChecker 1118 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 1119 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 1120 1121 if (!IsValidName) 1122 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1123 << CheckerOrPackage; 1124 } 1125 1126 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1127 } 1128 } 1129 1130 if (!Diags) 1131 return; 1132 1133 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1134 Diags->Report(diag::err_analyzer_config_invalid_input) 1135 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1136 1137 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1138 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1139 << "a filename"; 1140 1141 if (!AnOpts.ModelPath.empty() && 1142 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1143 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1144 << "a filename"; 1145 } 1146 1147 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1148 static void 1149 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1150 CompilerInvocation::StringAllocator SA, 1151 OptSpecifier OptEQ, StringRef Name, 1152 const CodeGenOptions::OptRemark &Remark) { 1153 if (Remark.hasValidPattern()) { 1154 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1155 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1156 GenerateArg(Args, OPT_R_Joined, Name, SA); 1157 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1158 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1159 } 1160 } 1161 1162 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1163 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1164 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1165 static CodeGenOptions::OptRemark 1166 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1167 OptSpecifier OptEQ, StringRef Name) { 1168 CodeGenOptions::OptRemark Result; 1169 1170 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A) { 1171 Result.Pattern = A->getValue(); 1172 1173 std::string RegexError; 1174 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1175 if (!Result.Regex->isValid(RegexError)) { 1176 Diags.Report(diag::err_drv_optimization_remark_pattern) 1177 << RegexError << A->getAsString(Args); 1178 return false; 1179 } 1180 1181 return true; 1182 }; 1183 1184 for (Arg *A : Args) { 1185 if (A->getOption().matches(OPT_R_Joined)) { 1186 StringRef Value = A->getValue(); 1187 1188 if (Value == Name) 1189 Result.Kind = CodeGenOptions::RK_Enabled; 1190 else if (Value == "everything") 1191 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1192 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1193 Result.Kind = CodeGenOptions::RK_Disabled; 1194 else if (Value == "no-everything") 1195 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1196 } else if (A->getOption().matches(OptEQ)) { 1197 Result.Kind = CodeGenOptions::RK_WithPattern; 1198 if (!InitializeResultPattern(A)) 1199 return CodeGenOptions::OptRemark(); 1200 } 1201 } 1202 1203 if (Result.Kind == CodeGenOptions::RK_Disabled || 1204 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1205 Result.Pattern = ""; 1206 Result.Regex = nullptr; 1207 } 1208 1209 return Result; 1210 } 1211 1212 static bool parseDiagnosticLevelMask(StringRef FlagName, 1213 const std::vector<std::string> &Levels, 1214 DiagnosticsEngine &Diags, 1215 DiagnosticLevelMask &M) { 1216 bool Success = true; 1217 for (const auto &Level : Levels) { 1218 DiagnosticLevelMask const PM = 1219 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1220 .Case("note", DiagnosticLevelMask::Note) 1221 .Case("remark", DiagnosticLevelMask::Remark) 1222 .Case("warning", DiagnosticLevelMask::Warning) 1223 .Case("error", DiagnosticLevelMask::Error) 1224 .Default(DiagnosticLevelMask::None); 1225 if (PM == DiagnosticLevelMask::None) { 1226 Success = false; 1227 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1228 } 1229 M = M | PM; 1230 } 1231 return Success; 1232 } 1233 1234 static void parseSanitizerKinds(StringRef FlagName, 1235 const std::vector<std::string> &Sanitizers, 1236 DiagnosticsEngine &Diags, SanitizerSet &S) { 1237 for (const auto &Sanitizer : Sanitizers) { 1238 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1239 if (K == SanitizerMask()) 1240 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1241 else 1242 S.set(K, true); 1243 } 1244 } 1245 1246 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1247 SmallVector<StringRef, 4> Values; 1248 serializeSanitizerSet(S, Values); 1249 return Values; 1250 } 1251 1252 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1253 ArgList &Args, DiagnosticsEngine &D, 1254 XRayInstrSet &S) { 1255 llvm::SmallVector<StringRef, 2> BundleParts; 1256 llvm::SplitString(Bundle, BundleParts, ","); 1257 for (const auto &B : BundleParts) { 1258 auto Mask = parseXRayInstrValue(B); 1259 if (Mask == XRayInstrKind::None) 1260 if (B != "none") 1261 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1262 else 1263 S.Mask = Mask; 1264 else if (Mask == XRayInstrKind::All) 1265 S.Mask = Mask; 1266 else 1267 S.set(Mask, true); 1268 } 1269 } 1270 1271 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1272 llvm::SmallVector<StringRef, 2> BundleParts; 1273 serializeXRayInstrValue(S, BundleParts); 1274 std::string Buffer; 1275 llvm::raw_string_ostream OS(Buffer); 1276 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1277 return OS.str(); 1278 } 1279 1280 // Set the profile kind using fprofile-instrument-use-path. 1281 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1282 const Twine &ProfileName) { 1283 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1284 // In error, return silently and let Clang PGOUse report the error message. 1285 if (auto E = ReaderOrErr.takeError()) { 1286 llvm::consumeError(std::move(E)); 1287 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1288 return; 1289 } 1290 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1291 std::move(ReaderOrErr.get()); 1292 if (PGOReader->isIRLevelProfile()) { 1293 if (PGOReader->hasCSIRLevelProfile()) 1294 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1295 else 1296 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1297 } else 1298 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1299 } 1300 1301 void CompilerInvocation::GenerateCodeGenArgs( 1302 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1303 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1304 const LangOptions *LangOpts) { 1305 const CodeGenOptions &CodeGenOpts = Opts; 1306 1307 if (Opts.OptimizationLevel == 0) 1308 GenerateArg(Args, OPT_O0, SA); 1309 else 1310 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1311 1312 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1313 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1314 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1315 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1316 MERGER, EXTRACTOR, TABLE_INDEX) \ 1317 GENERATE_OPTION_WITH_MARSHALLING( \ 1318 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1319 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1320 #include "clang/Driver/Options.inc" 1321 #undef CODEGEN_OPTION_WITH_MARSHALLING 1322 1323 if (Opts.OptimizationLevel > 0) { 1324 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1325 GenerateArg(Args, OPT_finline_functions, SA); 1326 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1327 GenerateArg(Args, OPT_finline_hint_functions, SA); 1328 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1329 GenerateArg(Args, OPT_fno_inline, SA); 1330 } 1331 1332 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1333 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1334 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1335 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1336 1337 Optional<StringRef> DebugInfoVal; 1338 switch (Opts.DebugInfo) { 1339 case codegenoptions::DebugLineTablesOnly: 1340 DebugInfoVal = "line-tables-only"; 1341 break; 1342 case codegenoptions::DebugDirectivesOnly: 1343 DebugInfoVal = "line-directives-only"; 1344 break; 1345 case codegenoptions::DebugInfoConstructor: 1346 DebugInfoVal = "constructor"; 1347 break; 1348 case codegenoptions::LimitedDebugInfo: 1349 DebugInfoVal = "limited"; 1350 break; 1351 case codegenoptions::FullDebugInfo: 1352 DebugInfoVal = "standalone"; 1353 break; 1354 case codegenoptions::UnusedTypeInfo: 1355 DebugInfoVal = "unused-types"; 1356 break; 1357 case codegenoptions::NoDebugInfo: // default value 1358 DebugInfoVal = None; 1359 break; 1360 case codegenoptions::LocTrackingOnly: // implied value 1361 DebugInfoVal = None; 1362 break; 1363 } 1364 if (DebugInfoVal) 1365 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1366 1367 if (Opts.DebugInfo == codegenoptions::DebugInfoConstructor) 1368 GenerateArg(Args, OPT_fuse_ctor_homing, SA); 1369 1370 for (const auto &Prefix : Opts.DebugPrefixMap) 1371 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1372 Prefix.first + "=" + Prefix.second, SA); 1373 1374 for (const auto &Prefix : Opts.CoveragePrefixMap) 1375 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1376 Prefix.first + "=" + Prefix.second, SA); 1377 1378 if (Opts.NewStructPathTBAA) 1379 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1380 1381 if (Opts.OptimizeSize == 1) 1382 GenerateArg(Args, OPT_O, "s", SA); 1383 else if (Opts.OptimizeSize == 2) 1384 GenerateArg(Args, OPT_O, "z", SA); 1385 1386 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1387 // -ffreestanding. We'll consider that when generating them. 1388 1389 // NoBuiltinFuncs are generated by LangOptions. 1390 1391 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1392 GenerateArg(Args, OPT_funroll_loops, SA); 1393 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1394 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1395 1396 if (!Opts.BinutilsVersion.empty()) 1397 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1398 1399 if (Opts.DebugNameTable == 1400 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1401 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1402 else if (Opts.DebugNameTable == 1403 static_cast<unsigned>( 1404 llvm::DICompileUnit::DebugNameTableKind::Default)) 1405 GenerateArg(Args, OPT_gpubnames, SA); 1406 1407 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1408 // it or PGOUseInstrumentor. 1409 1410 if (Opts.TimePasses) { 1411 if (Opts.TimePassesPerRun) 1412 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1413 else 1414 GenerateArg(Args, OPT_ftime_report, SA); 1415 } 1416 1417 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1418 GenerateArg(Args, OPT_flto, SA); 1419 1420 if (Opts.PrepareForThinLTO) 1421 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1422 1423 if (!Opts.ThinLTOIndexFile.empty()) 1424 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1425 1426 if (Opts.SaveTempsFilePrefix == OutputFile) 1427 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1428 1429 StringRef MemProfileBasename("memprof.profraw"); 1430 if (!Opts.MemoryProfileOutput.empty()) { 1431 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1432 GenerateArg(Args, OPT_fmemory_profile, SA); 1433 } else { 1434 size_t ArgLength = 1435 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1436 GenerateArg(Args, OPT_fmemory_profile_EQ, 1437 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1438 } 1439 } 1440 1441 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1442 GenerateArg(Args, OPT_coverage_version_EQ, 1443 StringRef(Opts.CoverageVersion, 4), SA); 1444 1445 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1446 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1447 // won't be generated.) 1448 1449 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1450 std::string InstrBundle = 1451 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1452 if (!InstrBundle.empty()) 1453 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1454 } 1455 1456 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1457 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1458 else if (Opts.CFProtectionReturn) 1459 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1460 else if (Opts.CFProtectionBranch) 1461 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1462 1463 for (const auto &F : Opts.LinkBitcodeFiles) { 1464 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1465 F.PropagateAttrs && F.Internalize; 1466 GenerateArg(Args, 1467 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1468 F.Filename, SA); 1469 } 1470 1471 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1472 // That would make it easy to generate the option only **once** if it was 1473 // explicitly set to non-default value. 1474 if (Opts.ExplicitEmulatedTLS) { 1475 GenerateArg( 1476 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1477 } 1478 1479 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1480 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1481 1482 if (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE()) 1483 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1484 SA); 1485 1486 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1487 OptSpecifier Opt = 1488 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1489 GenerateArg(Args, Opt, SA); 1490 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1491 OptSpecifier Opt = 1492 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1493 GenerateArg(Args, Opt, SA); 1494 } 1495 1496 if (Opts.EnableAIXExtendedAltivecABI) 1497 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1498 1499 if (!Opts.OptRecordPasses.empty()) 1500 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1501 1502 if (!Opts.OptRecordFormat.empty()) 1503 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1504 1505 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1506 Opts.OptimizationRemark); 1507 1508 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1509 Opts.OptimizationRemarkMissed); 1510 1511 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1512 Opts.OptimizationRemarkAnalysis); 1513 1514 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1515 Opts.DiagnosticsHotnessThreshold 1516 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1517 : "auto", 1518 SA); 1519 1520 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1521 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1522 1523 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1524 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1525 1526 if (!Opts.EmitVersionIdentMetadata) 1527 GenerateArg(Args, OPT_Qn, SA); 1528 1529 switch (Opts.FiniteLoops) { 1530 case CodeGenOptions::FiniteLoopsKind::Language: 1531 break; 1532 case CodeGenOptions::FiniteLoopsKind::Always: 1533 GenerateArg(Args, OPT_ffinite_loops, SA); 1534 break; 1535 case CodeGenOptions::FiniteLoopsKind::Never: 1536 GenerateArg(Args, OPT_fno_finite_loops, SA); 1537 break; 1538 } 1539 } 1540 1541 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1542 InputKind IK, 1543 DiagnosticsEngine &Diags, 1544 const llvm::Triple &T, 1545 const std::string &OutputFile, 1546 const LangOptions &LangOptsRef) { 1547 unsigned NumErrorsBefore = Diags.getNumErrors(); 1548 1549 bool Success = true; 1550 1551 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1552 // TODO: This could be done in Driver 1553 unsigned MaxOptLevel = 3; 1554 if (OptimizationLevel > MaxOptLevel) { 1555 // If the optimization level is not supported, fall back on the default 1556 // optimization 1557 Diags.Report(diag::warn_drv_optimization_value) 1558 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1559 OptimizationLevel = MaxOptLevel; 1560 } 1561 Opts.OptimizationLevel = OptimizationLevel; 1562 1563 // The key paths of codegen options defined in Options.td start with 1564 // "CodeGenOpts.". Let's provide the expected variable name and type. 1565 CodeGenOptions &CodeGenOpts = Opts; 1566 // Some codegen options depend on language options. Let's provide the expected 1567 // variable name and type. 1568 const LangOptions *LangOpts = &LangOptsRef; 1569 1570 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1571 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1572 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1573 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1574 MERGER, EXTRACTOR, TABLE_INDEX) \ 1575 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 1576 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1577 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 1578 MERGER, TABLE_INDEX) 1579 #include "clang/Driver/Options.inc" 1580 #undef CODEGEN_OPTION_WITH_MARSHALLING 1581 1582 // At O0 we want to fully disable inlining outside of cases marked with 1583 // 'alwaysinline' that are required for correctness. 1584 Opts.setInlining((Opts.OptimizationLevel == 0) 1585 ? CodeGenOptions::OnlyAlwaysInlining 1586 : CodeGenOptions::NormalInlining); 1587 // Explicit inlining flags can disable some or all inlining even at 1588 // optimization levels above zero. 1589 if (Arg *InlineArg = Args.getLastArg( 1590 options::OPT_finline_functions, options::OPT_finline_hint_functions, 1591 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 1592 if (Opts.OptimizationLevel > 0) { 1593 const Option &InlineOpt = InlineArg->getOption(); 1594 if (InlineOpt.matches(options::OPT_finline_functions)) 1595 Opts.setInlining(CodeGenOptions::NormalInlining); 1596 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 1597 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1598 else 1599 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1600 } 1601 } 1602 1603 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1604 // -fdirect-access-external-data. 1605 Opts.DirectAccessExternalData = 1606 Args.hasArg(OPT_fdirect_access_external_data) || 1607 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1608 LangOpts->PICLevel == 0); 1609 1610 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1611 unsigned Val = 1612 llvm::StringSwitch<unsigned>(A->getValue()) 1613 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1614 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1615 .Case("constructor", codegenoptions::DebugInfoConstructor) 1616 .Case("limited", codegenoptions::LimitedDebugInfo) 1617 .Case("standalone", codegenoptions::FullDebugInfo) 1618 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1619 .Default(~0U); 1620 if (Val == ~0U) 1621 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1622 << A->getValue(); 1623 else 1624 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1625 } 1626 1627 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1628 // constructor homing. 1629 if (Args.getLastArg(OPT_fuse_ctor_homing)) 1630 if (Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1631 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1632 1633 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1634 auto Split = StringRef(Arg).split('='); 1635 Opts.DebugPrefixMap.insert( 1636 {std::string(Split.first), std::string(Split.second)}); 1637 } 1638 1639 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1640 auto Split = StringRef(Arg).split('='); 1641 Opts.CoveragePrefixMap.insert( 1642 {std::string(Split.first), std::string(Split.second)}); 1643 } 1644 1645 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1646 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1647 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1648 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1649 1650 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1651 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1652 Opts.EmitCallSiteInfo = true; 1653 1654 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1655 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1656 << Opts.DIBugsReportFilePath; 1657 Opts.DIBugsReportFilePath = ""; 1658 } 1659 1660 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1661 Args.hasArg(OPT_new_struct_path_tbaa); 1662 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1663 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1664 if (Opts.SimplifyLibCalls) 1665 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1666 Opts.UnrollLoops = 1667 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1668 (Opts.OptimizationLevel > 1)); 1669 Opts.BinutilsVersion = 1670 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1671 1672 Opts.DebugNameTable = static_cast<unsigned>( 1673 Args.hasArg(OPT_ggnu_pubnames) 1674 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1675 : Args.hasArg(OPT_gpubnames) 1676 ? llvm::DICompileUnit::DebugNameTableKind::Default 1677 : llvm::DICompileUnit::DebugNameTableKind::None); 1678 1679 if (!Opts.ProfileInstrumentUsePath.empty()) 1680 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1681 1682 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1683 Opts.TimePasses = true; 1684 1685 // -ftime-report= is only for new pass manager. 1686 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1687 if (Opts.LegacyPassManager) 1688 Diags.Report(diag::err_drv_argument_only_allowed_with) 1689 << A->getAsString(Args) << "-fno-legacy-pass-manager"; 1690 1691 StringRef Val = A->getValue(); 1692 if (Val == "per-pass") 1693 Opts.TimePassesPerRun = false; 1694 else if (Val == "per-pass-run") 1695 Opts.TimePassesPerRun = true; 1696 else 1697 Diags.Report(diag::err_drv_invalid_value) 1698 << A->getAsString(Args) << A->getValue(); 1699 } 1700 } 1701 1702 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 1703 Opts.PrepareForThinLTO = false; 1704 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1705 StringRef S = A->getValue(); 1706 if (S == "thin") 1707 Opts.PrepareForThinLTO = true; 1708 else if (S != "full") 1709 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1710 } 1711 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1712 if (IK.getLanguage() != Language::LLVM_IR) 1713 Diags.Report(diag::err_drv_argument_only_allowed_with) 1714 << A->getAsString(Args) << "-x ir"; 1715 Opts.ThinLTOIndexFile = 1716 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1717 } 1718 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1719 Opts.SaveTempsFilePrefix = 1720 llvm::StringSwitch<std::string>(A->getValue()) 1721 .Case("obj", OutputFile) 1722 .Default(llvm::sys::path::filename(OutputFile).str()); 1723 1724 // The memory profile runtime appends the pid to make this name more unique. 1725 const char *MemProfileBasename = "memprof.profraw"; 1726 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1727 SmallString<128> Path( 1728 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1729 llvm::sys::path::append(Path, MemProfileBasename); 1730 Opts.MemoryProfileOutput = std::string(Path); 1731 } else if (Args.hasArg(OPT_fmemory_profile)) 1732 Opts.MemoryProfileOutput = MemProfileBasename; 1733 1734 memcpy(Opts.CoverageVersion, "408*", 4); 1735 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1736 if (Args.hasArg(OPT_coverage_version_EQ)) { 1737 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1738 if (CoverageVersion.size() != 4) { 1739 Diags.Report(diag::err_drv_invalid_value) 1740 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1741 << CoverageVersion; 1742 } else { 1743 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1744 } 1745 } 1746 } 1747 // FIXME: For backend options that are not yet recorded as function 1748 // attributes in the IR, keep track of them so we can embed them in a 1749 // separate data section and use them when building the bitcode. 1750 for (const auto &A : Args) { 1751 // Do not encode output and input. 1752 if (A->getOption().getID() == options::OPT_o || 1753 A->getOption().getID() == options::OPT_INPUT || 1754 A->getOption().getID() == options::OPT_x || 1755 A->getOption().getID() == options::OPT_fembed_bitcode || 1756 A->getOption().matches(options::OPT_W_Group)) 1757 continue; 1758 ArgStringList ASL; 1759 A->render(Args, ASL); 1760 for (const auto &arg : ASL) { 1761 StringRef ArgStr(arg); 1762 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1763 // using \00 to separate each commandline options. 1764 Opts.CmdArgs.push_back('\0'); 1765 } 1766 } 1767 1768 auto XRayInstrBundles = 1769 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1770 if (XRayInstrBundles.empty()) 1771 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1772 else 1773 for (const auto &A : XRayInstrBundles) 1774 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1775 Diags, Opts.XRayInstrumentationBundle); 1776 1777 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1778 StringRef Name = A->getValue(); 1779 if (Name == "full") { 1780 Opts.CFProtectionReturn = 1; 1781 Opts.CFProtectionBranch = 1; 1782 } else if (Name == "return") 1783 Opts.CFProtectionReturn = 1; 1784 else if (Name == "branch") 1785 Opts.CFProtectionBranch = 1; 1786 else if (Name != "none") { 1787 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1788 Success = false; 1789 } 1790 } 1791 1792 for (auto *A : 1793 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1794 CodeGenOptions::BitcodeFileToLink F; 1795 F.Filename = A->getValue(); 1796 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1797 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1798 // When linking CUDA bitcode, propagate function attributes so that 1799 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1800 F.PropagateAttrs = true; 1801 F.Internalize = true; 1802 } 1803 Opts.LinkBitcodeFiles.push_back(F); 1804 } 1805 1806 if (Args.getLastArg(OPT_femulated_tls) || 1807 Args.getLastArg(OPT_fno_emulated_tls)) { 1808 Opts.ExplicitEmulatedTLS = true; 1809 } 1810 1811 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1812 StringRef Val = A->getValue(); 1813 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1814 if (!Opts.FPDenormalMode.isValid()) 1815 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1816 } 1817 1818 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1819 StringRef Val = A->getValue(); 1820 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1821 if (!Opts.FP32DenormalMode.isValid()) 1822 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1823 } 1824 1825 // X86_32 has -fppc-struct-return and -freg-struct-return. 1826 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1827 if (Arg *A = 1828 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1829 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1830 // TODO: We might want to consider enabling these options on AIX in the 1831 // future. 1832 if (T.isOSAIX()) 1833 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1834 << A->getSpelling() << T.str(); 1835 1836 const Option &O = A->getOption(); 1837 if (O.matches(OPT_fpcc_struct_return) || 1838 O.matches(OPT_maix_struct_return)) { 1839 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1840 } else { 1841 assert(O.matches(OPT_freg_struct_return) || 1842 O.matches(OPT_msvr4_struct_return)); 1843 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1844 } 1845 } 1846 1847 if (Arg *A = 1848 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1849 if (!T.isOSAIX()) 1850 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1851 << A->getSpelling() << T.str(); 1852 1853 const Option &O = A->getOption(); 1854 if (O.matches(OPT_mabi_EQ_vec_default)) 1855 Diags.Report(diag::err_aix_default_altivec_abi) 1856 << A->getSpelling() << T.str(); 1857 else { 1858 assert(O.matches(OPT_mabi_EQ_vec_extabi)); 1859 Opts.EnableAIXExtendedAltivecABI = 1; 1860 } 1861 } 1862 1863 bool NeedLocTracking = false; 1864 1865 if (!Opts.OptRecordFile.empty()) 1866 NeedLocTracking = true; 1867 1868 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1869 Opts.OptRecordPasses = A->getValue(); 1870 NeedLocTracking = true; 1871 } 1872 1873 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1874 Opts.OptRecordFormat = A->getValue(); 1875 NeedLocTracking = true; 1876 } 1877 1878 Opts.OptimizationRemark = 1879 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1880 1881 Opts.OptimizationRemarkMissed = 1882 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1883 1884 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1885 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1886 1887 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1888 Opts.OptimizationRemarkMissed.hasValidPattern() || 1889 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1890 1891 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1892 bool UsingProfile = UsingSampleProfile || 1893 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1894 1895 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1896 // An IR file will contain PGO as metadata 1897 IK.getLanguage() != Language::LLVM_IR) 1898 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1899 << "-fdiagnostics-show-hotness"; 1900 1901 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1902 if (auto *arg = 1903 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1904 auto ResultOrErr = 1905 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1906 1907 if (!ResultOrErr) { 1908 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1909 << "-fdiagnostics-hotness-threshold="; 1910 } else { 1911 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1912 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1913 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1914 !UsingProfile) 1915 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1916 << "-fdiagnostics-hotness-threshold="; 1917 } 1918 } 1919 1920 // If the user requested to use a sample profile for PGO, then the 1921 // backend will need to track source location information so the profile 1922 // can be incorporated into the IR. 1923 if (UsingSampleProfile) 1924 NeedLocTracking = true; 1925 1926 // If the user requested a flag that requires source locations available in 1927 // the backend, make sure that the backend tracks source location information. 1928 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1929 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1930 1931 // Parse -fsanitize-recover= arguments. 1932 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1933 parseSanitizerKinds("-fsanitize-recover=", 1934 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1935 Opts.SanitizeRecover); 1936 parseSanitizerKinds("-fsanitize-trap=", 1937 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1938 Opts.SanitizeTrap); 1939 1940 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1941 1942 if (Args.hasArg(options::OPT_ffinite_loops)) 1943 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 1944 else if (Args.hasArg(options::OPT_fno_finite_loops)) 1945 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 1946 1947 return Success && Diags.getNumErrors() == NumErrorsBefore; 1948 } 1949 1950 static void 1951 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 1952 SmallVectorImpl<const char *> &Args, 1953 CompilerInvocation::StringAllocator SA) { 1954 const DependencyOutputOptions &DependencyOutputOpts = Opts; 1955 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1956 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1957 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1958 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1959 MERGER, EXTRACTOR, TABLE_INDEX) \ 1960 GENERATE_OPTION_WITH_MARSHALLING( \ 1961 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1962 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1963 #include "clang/Driver/Options.inc" 1964 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 1965 1966 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 1967 GenerateArg(Args, OPT_show_includes, SA); 1968 1969 for (const auto &Dep : Opts.ExtraDeps) { 1970 switch (Dep.second) { 1971 case EDK_SanitizeBlacklist: 1972 // Sanitizer blacklist arguments are generated from LanguageOptions. 1973 continue; 1974 case EDK_ModuleFile: 1975 // Module file arguments are generated from FrontendOptions and 1976 // HeaderSearchOptions. 1977 continue; 1978 case EDK_ProfileList: 1979 // Profile list arguments are generated from LanguageOptions via the 1980 // marshalling infrastructure. 1981 continue; 1982 case EDK_DepFileEntry: 1983 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 1984 break; 1985 } 1986 } 1987 } 1988 1989 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 1990 ArgList &Args, DiagnosticsEngine &Diags, 1991 frontend::ActionKind Action, 1992 bool ShowLineMarkers) { 1993 unsigned NumErrorsBefore = Diags.getNumErrors(); 1994 bool Success = true; 1995 1996 DependencyOutputOptions &DependencyOutputOpts = Opts; 1997 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1998 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1999 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2000 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2001 MERGER, EXTRACTOR, TABLE_INDEX) \ 2002 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2003 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2004 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2005 MERGER, TABLE_INDEX) 2006 #include "clang/Driver/Options.inc" 2007 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2008 2009 if (Args.hasArg(OPT_show_includes)) { 2010 // Writing both /showIncludes and preprocessor output to stdout 2011 // would produce interleaved output, so use stderr for /showIncludes. 2012 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2013 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2014 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2015 else 2016 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2017 } else { 2018 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2019 } 2020 2021 // Add sanitizer blacklists as extra dependencies. 2022 // They won't be discovered by the regular preprocessor, so 2023 // we let make / ninja to know about this implicit dependency. 2024 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) { 2025 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) { 2026 StringRef Val = A->getValue(); 2027 if (Val.find('=') == StringRef::npos) 2028 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeBlacklist); 2029 } 2030 if (Opts.IncludeSystemHeaders) { 2031 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) { 2032 StringRef Val = A->getValue(); 2033 if (Val.find('=') == StringRef::npos) 2034 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeBlacklist); 2035 } 2036 } 2037 } 2038 2039 // -fprofile-list= dependencies. 2040 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2041 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2042 2043 // Propagate the extra dependencies. 2044 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2045 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2046 2047 // Only the -fmodule-file=<file> form. 2048 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2049 StringRef Val = A->getValue(); 2050 if (Val.find('=') == StringRef::npos) 2051 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2052 } 2053 2054 return Success && Diags.getNumErrors() == NumErrorsBefore; 2055 } 2056 2057 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2058 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2059 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2060 // Support both clang's -f[no-]color-diagnostics and gcc's 2061 // -f[no-]diagnostics-colors[=never|always|auto]. 2062 enum { 2063 Colors_On, 2064 Colors_Off, 2065 Colors_Auto 2066 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2067 for (auto *A : Args) { 2068 const Option &O = A->getOption(); 2069 if (O.matches(options::OPT_fcolor_diagnostics) || 2070 O.matches(options::OPT_fdiagnostics_color)) { 2071 ShowColors = Colors_On; 2072 } else if (O.matches(options::OPT_fno_color_diagnostics) || 2073 O.matches(options::OPT_fno_diagnostics_color)) { 2074 ShowColors = Colors_Off; 2075 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2076 StringRef Value(A->getValue()); 2077 if (Value == "always") 2078 ShowColors = Colors_On; 2079 else if (Value == "never") 2080 ShowColors = Colors_Off; 2081 else if (Value == "auto") 2082 ShowColors = Colors_Auto; 2083 } 2084 } 2085 return ShowColors == Colors_On || 2086 (ShowColors == Colors_Auto && 2087 llvm::sys::Process::StandardErrHasColors()); 2088 } 2089 2090 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2091 DiagnosticsEngine &Diags) { 2092 bool Success = true; 2093 for (const auto &Prefix : VerifyPrefixes) { 2094 // Every prefix must start with a letter and contain only alphanumeric 2095 // characters, hyphens, and underscores. 2096 auto BadChar = llvm::find_if(Prefix, [](char C) { 2097 return !isAlphanumeric(C) && C != '-' && C != '_'; 2098 }); 2099 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2100 Success = false; 2101 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2102 Diags.Report(diag::note_drv_verify_prefix_spelling); 2103 } 2104 } 2105 return Success; 2106 } 2107 2108 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2109 SmallVectorImpl<const char *> &Args, 2110 CompilerInvocation::StringAllocator SA) { 2111 const FileSystemOptions &FileSystemOpts = Opts; 2112 2113 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2114 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2115 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2116 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2117 MERGER, EXTRACTOR, TABLE_INDEX) \ 2118 GENERATE_OPTION_WITH_MARSHALLING( \ 2119 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2120 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2121 #include "clang/Driver/Options.inc" 2122 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2123 } 2124 2125 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2126 DiagnosticsEngine &Diags) { 2127 FileSystemOptions &FileSystemOpts = Opts; 2128 bool Success = true; 2129 2130 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2131 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2132 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2133 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2134 MERGER, EXTRACTOR, TABLE_INDEX) \ 2135 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2136 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2137 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2138 MERGER, TABLE_INDEX) 2139 #include "clang/Driver/Options.inc" 2140 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2141 2142 return Success; 2143 } 2144 2145 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2146 SmallVectorImpl<const char *> &Args, 2147 CompilerInvocation::StringAllocator SA) { 2148 const MigratorOptions &MigratorOpts = Opts; 2149 2150 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2151 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2152 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2153 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2154 MERGER, EXTRACTOR, TABLE_INDEX) \ 2155 GENERATE_OPTION_WITH_MARSHALLING( \ 2156 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2157 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2158 #include "clang/Driver/Options.inc" 2159 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2160 } 2161 2162 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2163 DiagnosticsEngine &Diags) { 2164 MigratorOptions &MigratorOpts = Opts; 2165 bool Success = true; 2166 2167 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2168 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2169 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2170 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2171 MERGER, EXTRACTOR, TABLE_INDEX) \ 2172 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2173 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2174 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2175 MERGER, TABLE_INDEX) 2176 #include "clang/Driver/Options.inc" 2177 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2178 2179 return Success; 2180 } 2181 2182 void CompilerInvocation::GenerateDiagnosticArgs( 2183 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2184 StringAllocator SA, bool DefaultDiagColor) { 2185 const DiagnosticOptions *DiagnosticOpts = &Opts; 2186 #define DIAG_OPTION_WITH_MARSHALLING( \ 2187 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2188 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2189 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2190 MERGER, EXTRACTOR, TABLE_INDEX) \ 2191 GENERATE_OPTION_WITH_MARSHALLING( \ 2192 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2193 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2194 #include "clang/Driver/Options.inc" 2195 #undef DIAG_OPTION_WITH_MARSHALLING 2196 2197 if (!Opts.DiagnosticSerializationFile.empty()) 2198 GenerateArg(Args, OPT_diagnostic_serialized_file, 2199 Opts.DiagnosticSerializationFile, SA); 2200 2201 if (Opts.ShowColors) 2202 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2203 2204 if (Opts.VerifyDiagnostics && 2205 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2206 GenerateArg(Args, OPT_verify, SA); 2207 2208 for (const auto &Prefix : Opts.VerifyPrefixes) 2209 if (Prefix != "expected") 2210 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2211 2212 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2213 if (VIU == DiagnosticLevelMask::None) { 2214 // This is the default, don't generate anything. 2215 } else if (VIU == DiagnosticLevelMask::All) { 2216 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2217 } else { 2218 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2219 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2220 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2221 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2222 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2223 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2224 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2225 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2226 } 2227 2228 for (const auto &Warning : Opts.Warnings) { 2229 // This option is automatically generated from UndefPrefixes. 2230 if (Warning == "undef-prefix") 2231 continue; 2232 Args.push_back(SA(StringRef("-W") + Warning)); 2233 } 2234 2235 for (const auto &Remark : Opts.Remarks) { 2236 // These arguments are generated from OptimizationRemark fields of 2237 // CodeGenOptions. 2238 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2239 "pass-analysis", "no-pass-analysis", 2240 "pass-missed", "no-pass-missed"}; 2241 if (llvm::is_contained(IgnoredRemarks, Remark)) 2242 continue; 2243 2244 Args.push_back(SA(StringRef("-R") + Remark)); 2245 } 2246 } 2247 2248 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2249 DiagnosticsEngine *Diags, 2250 bool DefaultDiagColor) { 2251 Optional<DiagnosticsEngine> IgnoringDiags; 2252 if (!Diags) { 2253 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2254 new IgnoringDiagConsumer()); 2255 Diags = &*IgnoringDiags; 2256 } 2257 2258 // The key paths of diagnostic options defined in Options.td start with 2259 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2260 DiagnosticOptions *DiagnosticOpts = &Opts; 2261 bool Success = true; 2262 2263 #define DIAG_OPTION_WITH_MARSHALLING( \ 2264 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2265 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2266 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2267 MERGER, EXTRACTOR, TABLE_INDEX) \ 2268 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, Success, ID, FLAGS, PARAM, \ 2269 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2270 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2271 MERGER, TABLE_INDEX) 2272 #include "clang/Driver/Options.inc" 2273 #undef DIAG_OPTION_WITH_MARSHALLING 2274 2275 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2276 2277 if (Arg *A = 2278 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2279 Opts.DiagnosticSerializationFile = A->getValue(); 2280 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2281 2282 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2283 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2284 if (Args.hasArg(OPT_verify)) 2285 Opts.VerifyPrefixes.push_back("expected"); 2286 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2287 // then sort it to prepare for fast lookup using std::binary_search. 2288 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) { 2289 Opts.VerifyDiagnostics = false; 2290 Success = false; 2291 } 2292 else 2293 llvm::sort(Opts.VerifyPrefixes); 2294 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2295 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 2296 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 2297 *Diags, DiagMask); 2298 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2299 DiagMask = DiagnosticLevelMask::All; 2300 Opts.setVerifyIgnoreUnexpected(DiagMask); 2301 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2302 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2303 Diags->Report(diag::warn_ignoring_ftabstop_value) 2304 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2305 } 2306 2307 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2308 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2309 2310 return Success; 2311 } 2312 2313 /// Parse the argument to the -ftest-module-file-extension 2314 /// command-line argument. 2315 /// 2316 /// \returns true on error, false on success. 2317 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2318 std::string &BlockName, 2319 unsigned &MajorVersion, 2320 unsigned &MinorVersion, 2321 bool &Hashed, 2322 std::string &UserInfo) { 2323 SmallVector<StringRef, 5> Args; 2324 Arg.split(Args, ':', 5); 2325 if (Args.size() < 5) 2326 return true; 2327 2328 BlockName = std::string(Args[0]); 2329 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2330 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2331 if (Args[3].getAsInteger(2, Hashed)) return true; 2332 if (Args.size() > 4) 2333 UserInfo = std::string(Args[4]); 2334 return false; 2335 } 2336 2337 /// Return a table that associates command line option specifiers with the 2338 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2339 /// intentionally missing, as this case is handled separately from other 2340 /// frontend options. 2341 static const auto &getFrontendActionTable() { 2342 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2343 {frontend::ASTDeclList, OPT_ast_list}, 2344 2345 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2346 {frontend::ASTDump, OPT_ast_dump_all}, 2347 {frontend::ASTDump, OPT_ast_dump_EQ}, 2348 {frontend::ASTDump, OPT_ast_dump}, 2349 {frontend::ASTDump, OPT_ast_dump_lookups}, 2350 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2351 2352 {frontend::ASTPrint, OPT_ast_print}, 2353 {frontend::ASTView, OPT_ast_view}, 2354 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2355 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2356 {frontend::DumpTokens, OPT_dump_tokens}, 2357 {frontend::EmitAssembly, OPT_S}, 2358 {frontend::EmitBC, OPT_emit_llvm_bc}, 2359 {frontend::EmitHTML, OPT_emit_html}, 2360 {frontend::EmitLLVM, OPT_emit_llvm}, 2361 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2362 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2363 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2364 {frontend::EmitObj, OPT_emit_obj}, 2365 2366 {frontend::FixIt, OPT_fixit_EQ}, 2367 {frontend::FixIt, OPT_fixit}, 2368 2369 {frontend::GenerateModule, OPT_emit_module}, 2370 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2371 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2372 {frontend::GeneratePCH, OPT_emit_pch}, 2373 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2374 {frontend::InitOnly, OPT_init_only}, 2375 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2376 {frontend::ModuleFileInfo, OPT_module_file_info}, 2377 {frontend::VerifyPCH, OPT_verify_pch}, 2378 {frontend::PrintPreamble, OPT_print_preamble}, 2379 {frontend::PrintPreprocessedInput, OPT_E}, 2380 {frontend::TemplightDump, OPT_templight_dump}, 2381 {frontend::RewriteMacros, OPT_rewrite_macros}, 2382 {frontend::RewriteObjC, OPT_rewrite_objc}, 2383 {frontend::RewriteTest, OPT_rewrite_test}, 2384 {frontend::RunAnalysis, OPT_analyze}, 2385 {frontend::MigrateSource, OPT_migrate}, 2386 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2387 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2388 OPT_print_dependency_directives_minimized_source}, 2389 }; 2390 2391 return Table; 2392 } 2393 2394 /// Maps command line option to frontend action. 2395 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2396 for (const auto &ActionOpt : getFrontendActionTable()) 2397 if (ActionOpt.second == Opt.getID()) 2398 return ActionOpt.first; 2399 2400 return None; 2401 } 2402 2403 /// Maps frontend action to command line option. 2404 static Optional<OptSpecifier> 2405 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2406 for (const auto &ActionOpt : getFrontendActionTable()) 2407 if (ActionOpt.first == ProgramAction) 2408 return OptSpecifier(ActionOpt.second); 2409 2410 return None; 2411 } 2412 2413 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2414 SmallVectorImpl<const char *> &Args, 2415 CompilerInvocation::StringAllocator SA, 2416 bool IsHeader) { 2417 const FrontendOptions &FrontendOpts = Opts; 2418 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2419 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2420 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2421 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2422 MERGER, EXTRACTOR, TABLE_INDEX) \ 2423 GENERATE_OPTION_WITH_MARSHALLING( \ 2424 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2425 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2426 #include "clang/Driver/Options.inc" 2427 #undef FRONTEND_OPTION_WITH_MARSHALLING 2428 2429 Optional<OptSpecifier> ProgramActionOpt = 2430 getProgramActionOpt(Opts.ProgramAction); 2431 2432 // Generating a simple flag covers most frontend actions. 2433 std::function<void()> GenerateProgramAction = [&]() { 2434 GenerateArg(Args, *ProgramActionOpt, SA); 2435 }; 2436 2437 if (!ProgramActionOpt) { 2438 // PluginAction is the only program action handled separately. 2439 assert(Opts.ProgramAction == frontend::PluginAction && 2440 "Frontend action without option."); 2441 GenerateProgramAction = [&]() { 2442 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2443 }; 2444 } 2445 2446 // FIXME: Simplify the complex 'AST dump' command line. 2447 if (Opts.ProgramAction == frontend::ASTDump) { 2448 GenerateProgramAction = [&]() { 2449 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2450 // marshalling infrastructure. 2451 2452 if (Opts.ASTDumpFormat != ADOF_Default) { 2453 StringRef Format; 2454 switch (Opts.ASTDumpFormat) { 2455 case ADOF_Default: 2456 llvm_unreachable("Default AST dump format."); 2457 case ADOF_JSON: 2458 Format = "json"; 2459 break; 2460 } 2461 2462 if (Opts.ASTDumpAll) 2463 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2464 if (Opts.ASTDumpDecls) 2465 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2466 } else { 2467 if (Opts.ASTDumpAll) 2468 GenerateArg(Args, OPT_ast_dump_all, SA); 2469 if (Opts.ASTDumpDecls) 2470 GenerateArg(Args, OPT_ast_dump, SA); 2471 } 2472 }; 2473 } 2474 2475 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2476 GenerateProgramAction = [&]() { 2477 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2478 }; 2479 } 2480 2481 GenerateProgramAction(); 2482 2483 for (const auto &PluginArgs : Opts.PluginArgs) { 2484 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2485 const char *Spelling = 2486 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2487 for (const auto &PluginArg : PluginArgs.second) 2488 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2489 } 2490 2491 for (const auto &Ext : Opts.ModuleFileExtensions) 2492 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2493 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2494 2495 if (!Opts.CodeCompletionAt.FileName.empty()) 2496 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2497 SA); 2498 2499 for (const auto &Plugin : Opts.Plugins) 2500 GenerateArg(Args, OPT_load, Plugin, SA); 2501 2502 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2503 2504 for (const auto &ModuleFile : Opts.ModuleFiles) 2505 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2506 2507 if (Opts.AuxTargetCPU.hasValue()) 2508 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2509 2510 if (Opts.AuxTargetFeatures.hasValue()) 2511 for (const auto &Feature : *Opts.AuxTargetFeatures) 2512 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2513 2514 { 2515 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2516 StringRef ModuleMap = 2517 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2518 StringRef Header = IsHeader ? "-header" : ""; 2519 2520 StringRef Lang; 2521 switch (Opts.DashX.getLanguage()) { 2522 case Language::C: 2523 Lang = "c"; 2524 break; 2525 case Language::OpenCL: 2526 Lang = "cl"; 2527 break; 2528 case Language::OpenCLCXX: 2529 Lang = "clcpp"; 2530 break; 2531 case Language::CUDA: 2532 Lang = "cuda"; 2533 break; 2534 case Language::HIP: 2535 Lang = "hip"; 2536 break; 2537 case Language::CXX: 2538 Lang = "c++"; 2539 break; 2540 case Language::ObjC: 2541 Lang = "objective-c"; 2542 break; 2543 case Language::ObjCXX: 2544 Lang = "objective-c++"; 2545 break; 2546 case Language::RenderScript: 2547 Lang = "renderscript"; 2548 break; 2549 case Language::Asm: 2550 Lang = "assembler-with-cpp"; 2551 break; 2552 case Language::Unknown: 2553 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2554 "Generating -x argument for unknown language (not precompiled)."); 2555 Lang = "ast"; 2556 break; 2557 case Language::LLVM_IR: 2558 Lang = "ir"; 2559 break; 2560 } 2561 2562 GenerateArg(Args, OPT_x, Lang + Header + ModuleMap + Preprocessed, SA); 2563 } 2564 2565 // OPT_INPUT has a unique class, generate it directly. 2566 for (const auto &Input : Opts.Inputs) 2567 Args.push_back(SA(Input.getFile())); 2568 } 2569 2570 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2571 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2572 FrontendOptions &FrontendOpts = Opts; 2573 bool Success = true; 2574 unsigned NumErrorsBefore = Diags.getNumErrors(); 2575 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2576 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2577 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2578 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2579 MERGER, EXTRACTOR, TABLE_INDEX) \ 2580 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2581 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2582 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2583 MERGER, TABLE_INDEX) 2584 #include "clang/Driver/Options.inc" 2585 #undef FRONTEND_OPTION_WITH_MARSHALLING 2586 2587 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2588 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2589 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2590 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2591 assert(ProgramAction && "Option specifier not in Action_Group."); 2592 2593 if (ProgramAction == frontend::ASTDump && 2594 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2595 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2596 .CaseLower("default", ADOF_Default) 2597 .CaseLower("json", ADOF_JSON) 2598 .Default(std::numeric_limits<unsigned>::max()); 2599 2600 if (Val != std::numeric_limits<unsigned>::max()) 2601 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2602 else { 2603 Diags.Report(diag::err_drv_invalid_value) 2604 << A->getAsString(Args) << A->getValue(); 2605 Opts.ASTDumpFormat = ADOF_Default; 2606 } 2607 } 2608 2609 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2610 Opts.FixItSuffix = A->getValue(); 2611 2612 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2613 StringRef ArgStr = 2614 Args.hasArg(OPT_interface_stub_version_EQ) 2615 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2616 : "experimental-ifs-v2"; 2617 if (ArgStr == "experimental-yaml-elf-v1" || 2618 ArgStr == "experimental-ifs-v1" || 2619 ArgStr == "experimental-tapi-elf-v1") { 2620 std::string ErrorMessage = 2621 "Invalid interface stub format: " + ArgStr.str() + 2622 " is deprecated."; 2623 Diags.Report(diag::err_drv_invalid_value) 2624 << "Must specify a valid interface stub format type, ie: " 2625 "-interface-stub-version=experimental-ifs-v2" 2626 << ErrorMessage; 2627 ProgramAction = frontend::ParseSyntaxOnly; 2628 } else if (!ArgStr.startswith("experimental-ifs-")) { 2629 std::string ErrorMessage = 2630 "Invalid interface stub format: " + ArgStr.str() + "."; 2631 Diags.Report(diag::err_drv_invalid_value) 2632 << "Must specify a valid interface stub format type, ie: " 2633 "-interface-stub-version=experimental-ifs-v2" 2634 << ErrorMessage; 2635 ProgramAction = frontend::ParseSyntaxOnly; 2636 } 2637 } 2638 2639 Opts.ProgramAction = *ProgramAction; 2640 } 2641 2642 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2643 Opts.Plugins.emplace_back(A->getValue(0)); 2644 Opts.ProgramAction = frontend::PluginAction; 2645 Opts.ActionName = A->getValue(); 2646 } 2647 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2648 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2649 2650 for (const std::string &Arg : 2651 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2652 std::string BlockName; 2653 unsigned MajorVersion; 2654 unsigned MinorVersion; 2655 bool Hashed; 2656 std::string UserInfo; 2657 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2658 MinorVersion, Hashed, UserInfo)) { 2659 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2660 2661 continue; 2662 } 2663 2664 // Add the testing module file extension. 2665 Opts.ModuleFileExtensions.push_back( 2666 std::make_shared<TestModuleFileExtension>( 2667 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2668 } 2669 2670 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2671 Opts.CodeCompletionAt = 2672 ParsedSourceLocation::FromString(A->getValue()); 2673 if (Opts.CodeCompletionAt.FileName.empty()) 2674 Diags.Report(diag::err_drv_invalid_value) 2675 << A->getAsString(Args) << A->getValue(); 2676 } 2677 2678 Opts.Plugins = Args.getAllArgValues(OPT_load); 2679 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2680 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2681 // Only the -fmodule-file=<file> form. 2682 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2683 StringRef Val = A->getValue(); 2684 if (Val.find('=') == StringRef::npos) 2685 Opts.ModuleFiles.push_back(std::string(Val)); 2686 } 2687 2688 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2689 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2690 << "-emit-module"; 2691 2692 if (Args.hasArg(OPT_aux_target_cpu)) 2693 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2694 if (Args.hasArg(OPT_aux_target_feature)) 2695 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2696 2697 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2698 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2699 Diags.Report(diag::err_drv_argument_not_allowed_with) 2700 << "ARC migration" << "ObjC migration"; 2701 } 2702 2703 InputKind DashX(Language::Unknown); 2704 if (const Arg *A = Args.getLastArg(OPT_x)) { 2705 StringRef XValue = A->getValue(); 2706 2707 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2708 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2709 bool Preprocessed = XValue.consume_back("-cpp-output"); 2710 bool ModuleMap = XValue.consume_back("-module-map"); 2711 IsHeaderFile = !Preprocessed && !ModuleMap && 2712 XValue != "precompiled-header" && 2713 XValue.consume_back("-header"); 2714 2715 // Principal languages. 2716 DashX = llvm::StringSwitch<InputKind>(XValue) 2717 .Case("c", Language::C) 2718 .Case("cl", Language::OpenCL) 2719 .Case("clcpp", Language::OpenCLCXX) 2720 .Case("cuda", Language::CUDA) 2721 .Case("hip", Language::HIP) 2722 .Case("c++", Language::CXX) 2723 .Case("objective-c", Language::ObjC) 2724 .Case("objective-c++", Language::ObjCXX) 2725 .Case("renderscript", Language::RenderScript) 2726 .Default(Language::Unknown); 2727 2728 // "objc[++]-cpp-output" is an acceptable synonym for 2729 // "objective-c[++]-cpp-output". 2730 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2731 DashX = llvm::StringSwitch<InputKind>(XValue) 2732 .Case("objc", Language::ObjC) 2733 .Case("objc++", Language::ObjCXX) 2734 .Default(Language::Unknown); 2735 2736 // Some special cases cannot be combined with suffixes. 2737 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2738 DashX = llvm::StringSwitch<InputKind>(XValue) 2739 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2740 .Case("assembler-with-cpp", Language::Asm) 2741 .Cases("ast", "pcm", "precompiled-header", 2742 InputKind(Language::Unknown, InputKind::Precompiled)) 2743 .Case("ir", Language::LLVM_IR) 2744 .Default(Language::Unknown); 2745 2746 if (DashX.isUnknown()) 2747 Diags.Report(diag::err_drv_invalid_value) 2748 << A->getAsString(Args) << A->getValue(); 2749 2750 if (Preprocessed) 2751 DashX = DashX.getPreprocessed(); 2752 if (ModuleMap) 2753 DashX = DashX.withFormat(InputKind::ModuleMap); 2754 } 2755 2756 // '-' is the default input if none is given. 2757 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2758 Opts.Inputs.clear(); 2759 if (Inputs.empty()) 2760 Inputs.push_back("-"); 2761 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2762 InputKind IK = DashX; 2763 if (IK.isUnknown()) { 2764 IK = FrontendOptions::getInputKindForExtension( 2765 StringRef(Inputs[i]).rsplit('.').second); 2766 // FIXME: Warn on this? 2767 if (IK.isUnknown()) 2768 IK = Language::C; 2769 // FIXME: Remove this hack. 2770 if (i == 0) 2771 DashX = IK; 2772 } 2773 2774 bool IsSystem = false; 2775 2776 // The -emit-module action implicitly takes a module map. 2777 if (Opts.ProgramAction == frontend::GenerateModule && 2778 IK.getFormat() == InputKind::Source) { 2779 IK = IK.withFormat(InputKind::ModuleMap); 2780 IsSystem = Opts.IsSystemModule; 2781 } 2782 2783 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2784 } 2785 2786 Opts.DashX = DashX; 2787 2788 return Diags.getNumErrors() == NumErrorsBefore; 2789 } 2790 2791 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2792 void *MainAddr) { 2793 std::string ClangExecutable = 2794 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2795 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2796 } 2797 2798 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2799 SmallVectorImpl<const char *> &Args, 2800 CompilerInvocation::StringAllocator SA) { 2801 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2802 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2803 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2804 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2805 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2806 MERGER, EXTRACTOR, TABLE_INDEX) \ 2807 GENERATE_OPTION_WITH_MARSHALLING( \ 2808 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2809 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2810 #include "clang/Driver/Options.inc" 2811 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2812 2813 if (Opts.UseLibcxx) 2814 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2815 2816 if (!Opts.ModuleCachePath.empty()) 2817 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2818 2819 for (const auto &File : Opts.PrebuiltModuleFiles) 2820 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2821 2822 for (const auto &Path : Opts.PrebuiltModulePaths) 2823 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2824 2825 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2826 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2827 2828 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2829 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2830 llvm::Optional<bool> IsFramework, 2831 llvm::Optional<bool> IgnoreSysRoot) { 2832 return llvm::find(Groups, Entry.Group) != Groups.end() && 2833 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2834 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2835 }; 2836 2837 auto It = Opts.UserEntries.begin(); 2838 auto End = Opts.UserEntries.end(); 2839 2840 // Add -I..., -F..., and -index-header-map options in order. 2841 for (; It < End && 2842 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2843 ++It) { 2844 OptSpecifier Opt = [It, Matches]() { 2845 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2846 return OPT_F; 2847 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2848 return OPT_I; 2849 if (Matches(*It, frontend::Angled, true, true)) 2850 return OPT_F; 2851 if (Matches(*It, frontend::Angled, false, true)) 2852 return OPT_I; 2853 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2854 }(); 2855 2856 if (It->Group == frontend::IndexHeaderMap) 2857 GenerateArg(Args, OPT_index_header_map, SA); 2858 GenerateArg(Args, Opt, It->Path, SA); 2859 }; 2860 2861 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2862 // have already been generated as "-I[xx]yy". If that's the case, their 2863 // position on command line was such that this has no semantic impact on 2864 // include paths. 2865 for (; It < End && 2866 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2867 ++It) { 2868 OptSpecifier Opt = 2869 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2870 GenerateArg(Args, Opt, It->Path, SA); 2871 } 2872 2873 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2874 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2875 // command line was such that this has no semantic impact on include paths. 2876 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2877 GenerateArg(Args, OPT_idirafter, It->Path, SA); 2878 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 2879 GenerateArg(Args, OPT_iquote, It->Path, SA); 2880 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 2881 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 2882 It->Path, SA); 2883 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 2884 GenerateArg(Args, OPT_iframework, It->Path, SA); 2885 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 2886 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 2887 2888 // Add the paths for the various language specific isystem flags. 2889 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 2890 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 2891 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 2892 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 2893 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 2894 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 2895 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 2896 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 2897 2898 // Add the internal paths from a driver that detects standard include paths. 2899 // Note: Some paths that came from "-internal-isystem" arguments may have 2900 // already been generated as "-isystem". If that's the case, their position on 2901 // command line was such that this has no semantic impact on include paths. 2902 for (; It < End && 2903 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 2904 ++It) { 2905 OptSpecifier Opt = It->Group == frontend::System 2906 ? OPT_internal_isystem 2907 : OPT_internal_externc_isystem; 2908 GenerateArg(Args, Opt, It->Path, SA); 2909 } 2910 2911 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 2912 2913 // Add the path prefixes which are implicitly treated as being system headers. 2914 for (const auto &P : Opts.SystemHeaderPrefixes) { 2915 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 2916 : OPT_no_system_header_prefix; 2917 GenerateArg(Args, Opt, P.Prefix, SA); 2918 } 2919 2920 for (const std::string &F : Opts.VFSOverlayFiles) 2921 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 2922 } 2923 2924 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2925 DiagnosticsEngine &Diags, 2926 const std::string &WorkingDir) { 2927 HeaderSearchOptions *HeaderSearchOpts = &Opts; 2928 bool Success = true; 2929 2930 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2931 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2932 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2933 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2934 MERGER, EXTRACTOR, TABLE_INDEX) \ 2935 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 2936 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2937 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 2938 MERGER, TABLE_INDEX) 2939 #include "clang/Driver/Options.inc" 2940 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2941 2942 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2943 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2944 2945 // Canonicalize -fmodules-cache-path before storing it. 2946 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2947 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2948 if (WorkingDir.empty()) 2949 llvm::sys::fs::make_absolute(P); 2950 else 2951 llvm::sys::fs::make_absolute(WorkingDir, P); 2952 } 2953 llvm::sys::path::remove_dots(P); 2954 Opts.ModuleCachePath = std::string(P.str()); 2955 2956 // Only the -fmodule-file=<name>=<file> form. 2957 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2958 StringRef Val = A->getValue(); 2959 if (Val.find('=') != StringRef::npos){ 2960 auto Split = Val.split('='); 2961 Opts.PrebuiltModuleFiles.insert( 2962 {std::string(Split.first), std::string(Split.second)}); 2963 } 2964 } 2965 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2966 Opts.AddPrebuiltModulePath(A->getValue()); 2967 2968 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2969 StringRef MacroDef = A->getValue(); 2970 Opts.ModulesIgnoreMacros.insert( 2971 llvm::CachedHashString(MacroDef.split('=').first)); 2972 } 2973 2974 // Add -I..., -F..., and -index-header-map options in order. 2975 bool IsIndexHeaderMap = false; 2976 bool IsSysrootSpecified = 2977 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2978 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2979 if (A->getOption().matches(OPT_index_header_map)) { 2980 // -index-header-map applies to the next -I or -F. 2981 IsIndexHeaderMap = true; 2982 continue; 2983 } 2984 2985 frontend::IncludeDirGroup Group = 2986 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 2987 2988 bool IsFramework = A->getOption().matches(OPT_F); 2989 std::string Path = A->getValue(); 2990 2991 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 2992 SmallString<32> Buffer; 2993 llvm::sys::path::append(Buffer, Opts.Sysroot, 2994 llvm::StringRef(A->getValue()).substr(1)); 2995 Path = std::string(Buffer.str()); 2996 } 2997 2998 Opts.AddPath(Path, Group, IsFramework, 2999 /*IgnoreSysroot*/ true); 3000 IsIndexHeaderMap = false; 3001 } 3002 3003 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3004 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3005 for (const auto *A : 3006 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3007 if (A->getOption().matches(OPT_iprefix)) 3008 Prefix = A->getValue(); 3009 else if (A->getOption().matches(OPT_iwithprefix)) 3010 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3011 else 3012 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3013 } 3014 3015 for (const auto *A : Args.filtered(OPT_idirafter)) 3016 Opts.AddPath(A->getValue(), frontend::After, false, true); 3017 for (const auto *A : Args.filtered(OPT_iquote)) 3018 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3019 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3020 Opts.AddPath(A->getValue(), frontend::System, false, 3021 !A->getOption().matches(OPT_iwithsysroot)); 3022 for (const auto *A : Args.filtered(OPT_iframework)) 3023 Opts.AddPath(A->getValue(), frontend::System, true, true); 3024 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3025 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3026 /*IgnoreSysRoot=*/false); 3027 3028 // Add the paths for the various language specific isystem flags. 3029 for (const auto *A : Args.filtered(OPT_c_isystem)) 3030 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3031 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3032 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3033 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3034 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3035 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3036 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3037 3038 // Add the internal paths from a driver that detects standard include paths. 3039 for (const auto *A : 3040 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3041 frontend::IncludeDirGroup Group = frontend::System; 3042 if (A->getOption().matches(OPT_internal_externc_isystem)) 3043 Group = frontend::ExternCSystem; 3044 Opts.AddPath(A->getValue(), Group, false, true); 3045 } 3046 3047 // Add the path prefixes which are implicitly treated as being system headers. 3048 for (const auto *A : 3049 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3050 Opts.AddSystemHeaderPrefix( 3051 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3052 3053 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3054 Opts.AddVFSOverlayFile(A->getValue()); 3055 3056 return Success; 3057 } 3058 3059 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 3060 const llvm::Triple &T, 3061 std::vector<std::string> &Includes, 3062 LangStandard::Kind LangStd) { 3063 // Set some properties which depend solely on the input kind; it would be nice 3064 // to move these to the language standard, and have the driver resolve the 3065 // input kind + language standard. 3066 // 3067 // FIXME: Perhaps a better model would be for a single source file to have 3068 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 3069 // simultaneously active? 3070 if (IK.getLanguage() == Language::Asm) { 3071 Opts.AsmPreprocessor = 1; 3072 } else if (IK.isObjectiveC()) { 3073 Opts.ObjC = 1; 3074 } 3075 3076 if (LangStd == LangStandard::lang_unspecified) { 3077 // Based on the base language, pick one. 3078 switch (IK.getLanguage()) { 3079 case Language::Unknown: 3080 case Language::LLVM_IR: 3081 llvm_unreachable("Invalid input kind!"); 3082 case Language::OpenCL: 3083 LangStd = LangStandard::lang_opencl10; 3084 break; 3085 case Language::OpenCLCXX: 3086 LangStd = LangStandard::lang_openclcpp; 3087 break; 3088 case Language::CUDA: 3089 LangStd = LangStandard::lang_cuda; 3090 break; 3091 case Language::Asm: 3092 case Language::C: 3093 #if defined(CLANG_DEFAULT_STD_C) 3094 LangStd = CLANG_DEFAULT_STD_C; 3095 #else 3096 // The PS4 uses C99 as the default C standard. 3097 if (T.isPS4()) 3098 LangStd = LangStandard::lang_gnu99; 3099 else 3100 LangStd = LangStandard::lang_gnu17; 3101 #endif 3102 break; 3103 case Language::ObjC: 3104 #if defined(CLANG_DEFAULT_STD_C) 3105 LangStd = CLANG_DEFAULT_STD_C; 3106 #else 3107 LangStd = LangStandard::lang_gnu11; 3108 #endif 3109 break; 3110 case Language::CXX: 3111 case Language::ObjCXX: 3112 #if defined(CLANG_DEFAULT_STD_CXX) 3113 LangStd = CLANG_DEFAULT_STD_CXX; 3114 #else 3115 LangStd = LangStandard::lang_gnucxx14; 3116 #endif 3117 break; 3118 case Language::RenderScript: 3119 LangStd = LangStandard::lang_c99; 3120 break; 3121 case Language::HIP: 3122 LangStd = LangStandard::lang_hip; 3123 break; 3124 } 3125 } 3126 3127 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3128 Opts.LangStd = LangStd; 3129 Opts.LineComment = Std.hasLineComments(); 3130 Opts.C99 = Std.isC99(); 3131 Opts.C11 = Std.isC11(); 3132 Opts.C17 = Std.isC17(); 3133 Opts.C2x = Std.isC2x(); 3134 Opts.CPlusPlus = Std.isCPlusPlus(); 3135 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 3136 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 3137 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 3138 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 3139 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 3140 Opts.GNUMode = Std.isGNUMode(); 3141 Opts.GNUCVersion = 0; 3142 Opts.HexFloats = Std.hasHexFloats(); 3143 Opts.ImplicitInt = Std.hasImplicitInt(); 3144 3145 Opts.CPlusPlusModules = Opts.CPlusPlus20; 3146 3147 // Set OpenCL Version. 3148 Opts.OpenCL = Std.isOpenCL(); 3149 if (LangStd == LangStandard::lang_opencl10) 3150 Opts.OpenCLVersion = 100; 3151 else if (LangStd == LangStandard::lang_opencl11) 3152 Opts.OpenCLVersion = 110; 3153 else if (LangStd == LangStandard::lang_opencl12) 3154 Opts.OpenCLVersion = 120; 3155 else if (LangStd == LangStandard::lang_opencl20) 3156 Opts.OpenCLVersion = 200; 3157 else if (LangStd == LangStandard::lang_opencl30) 3158 Opts.OpenCLVersion = 300; 3159 else if (LangStd == LangStandard::lang_openclcpp) 3160 Opts.OpenCLCPlusPlusVersion = 100; 3161 3162 // OpenCL has some additional defaults. 3163 if (Opts.OpenCL) { 3164 Opts.AltiVec = 0; 3165 Opts.ZVector = 0; 3166 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3167 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 3168 Opts.OpenCLPipe = Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3169 Opts.OpenCLGenericAddressSpace = 3170 Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3171 3172 // Include default header file for OpenCL. 3173 if (Opts.IncludeDefaultHeader) { 3174 if (Opts.DeclareOpenCLBuiltins) { 3175 // Only include base header file for builtin types and constants. 3176 Includes.push_back("opencl-c-base.h"); 3177 } else { 3178 Includes.push_back("opencl-c.h"); 3179 } 3180 } 3181 } 3182 3183 Opts.HIP = IK.getLanguage() == Language::HIP; 3184 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 3185 if (Opts.HIP) { 3186 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 3187 // fuses multiplication/addition instructions without contract flag from 3188 // device library functions in LLVM bitcode, which causes accuracy loss in 3189 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 3190 // For device library functions in bitcode to work, 'Strict' or 'Standard' 3191 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 3192 // FP contract option is used to allow fuse across statements in frontend 3193 // whereas respecting contract flag in backend. 3194 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3195 } else if (Opts.CUDA) { 3196 // Allow fuse across statements disregarding pragmas. 3197 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3198 } 3199 3200 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 3201 3202 // OpenCL and C++ both have bool, true, false keywords. 3203 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 3204 3205 // OpenCL has half keyword 3206 Opts.Half = Opts.OpenCL; 3207 } 3208 3209 /// Check if input file kind and language standard are compatible. 3210 static bool IsInputCompatibleWithStandard(InputKind IK, 3211 const LangStandard &S) { 3212 switch (IK.getLanguage()) { 3213 case Language::Unknown: 3214 case Language::LLVM_IR: 3215 llvm_unreachable("should not parse language flags for this input"); 3216 3217 case Language::C: 3218 case Language::ObjC: 3219 case Language::RenderScript: 3220 return S.getLanguage() == Language::C; 3221 3222 case Language::OpenCL: 3223 return S.getLanguage() == Language::OpenCL || 3224 S.getLanguage() == Language::OpenCLCXX; 3225 3226 case Language::OpenCLCXX: 3227 return S.getLanguage() == Language::OpenCLCXX; 3228 3229 case Language::CXX: 3230 case Language::ObjCXX: 3231 return S.getLanguage() == Language::CXX; 3232 3233 case Language::CUDA: 3234 // FIXME: What -std= values should be permitted for CUDA compilations? 3235 return S.getLanguage() == Language::CUDA || 3236 S.getLanguage() == Language::CXX; 3237 3238 case Language::HIP: 3239 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3240 3241 case Language::Asm: 3242 // Accept (and ignore) all -std= values. 3243 // FIXME: The -std= value is not ignored; it affects the tokenization 3244 // and preprocessing rules if we're preprocessing this asm input. 3245 return true; 3246 } 3247 3248 llvm_unreachable("unexpected input language"); 3249 } 3250 3251 /// Get language name for given input kind. 3252 static const StringRef GetInputKindName(InputKind IK) { 3253 switch (IK.getLanguage()) { 3254 case Language::C: 3255 return "C"; 3256 case Language::ObjC: 3257 return "Objective-C"; 3258 case Language::CXX: 3259 return "C++"; 3260 case Language::ObjCXX: 3261 return "Objective-C++"; 3262 case Language::OpenCL: 3263 return "OpenCL"; 3264 case Language::OpenCLCXX: 3265 return "C++ for OpenCL"; 3266 case Language::CUDA: 3267 return "CUDA"; 3268 case Language::RenderScript: 3269 return "RenderScript"; 3270 case Language::HIP: 3271 return "HIP"; 3272 3273 case Language::Asm: 3274 return "Asm"; 3275 case Language::LLVM_IR: 3276 return "LLVM IR"; 3277 3278 case Language::Unknown: 3279 break; 3280 } 3281 llvm_unreachable("unknown input language"); 3282 } 3283 3284 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3285 SmallVectorImpl<const char *> &Args, 3286 StringAllocator SA, 3287 const llvm::Triple &T) { 3288 OptSpecifier StdOpt; 3289 switch (Opts.LangStd) { 3290 case LangStandard::lang_opencl10: 3291 case LangStandard::lang_opencl11: 3292 case LangStandard::lang_opencl12: 3293 case LangStandard::lang_opencl20: 3294 case LangStandard::lang_opencl30: 3295 case LangStandard::lang_openclcpp: 3296 StdOpt = OPT_cl_std_EQ; 3297 break; 3298 default: 3299 StdOpt = OPT_std_EQ; 3300 break; 3301 } 3302 3303 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3304 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3305 3306 if (Opts.IncludeDefaultHeader) 3307 GenerateArg(Args, OPT_finclude_default_header, SA); 3308 if (Opts.DeclareOpenCLBuiltins) 3309 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3310 3311 const LangOptions *LangOpts = &Opts; 3312 3313 #define LANG_OPTION_WITH_MARSHALLING( \ 3314 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3315 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3316 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3317 MERGER, EXTRACTOR, TABLE_INDEX) \ 3318 GENERATE_OPTION_WITH_MARSHALLING( \ 3319 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3320 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3321 #include "clang/Driver/Options.inc" 3322 #undef LANG_OPTION_WITH_MARSHALLING 3323 3324 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3325 3326 if (Opts.ObjC) { 3327 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3328 3329 if (Opts.GC == LangOptions::GCOnly) 3330 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3331 else if (Opts.GC == LangOptions::HybridGC) 3332 GenerateArg(Args, OPT_fobjc_gc, SA); 3333 else if (Opts.ObjCAutoRefCount == 1) 3334 GenerateArg(Args, OPT_fobjc_arc, SA); 3335 3336 if (Opts.ObjCWeakRuntime) 3337 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3338 3339 if (Opts.ObjCWeak) 3340 GenerateArg(Args, OPT_fobjc_weak, SA); 3341 3342 if (Opts.ObjCSubscriptingLegacyRuntime) 3343 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3344 } 3345 3346 if (Opts.GNUCVersion != 0) { 3347 unsigned Major = Opts.GNUCVersion / 100 / 100; 3348 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3349 unsigned Patch = Opts.GNUCVersion % 100; 3350 GenerateArg(Args, OPT_fgnuc_version_EQ, 3351 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3352 } 3353 3354 if (Opts.IgnoreXCOFFVisibility) 3355 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3356 3357 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3358 GenerateArg(Args, OPT_ftrapv, SA); 3359 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3360 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3361 GenerateArg(Args, OPT_fwrapv, SA); 3362 } 3363 3364 if (Opts.MSCompatibilityVersion != 0) { 3365 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3366 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3367 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3368 GenerateArg(Args, OPT_fms_compatibility_version, 3369 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3370 } 3371 3372 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3373 if (!Opts.Trigraphs) 3374 GenerateArg(Args, OPT_fno_trigraphs, SA); 3375 } else { 3376 if (Opts.Trigraphs) 3377 GenerateArg(Args, OPT_ftrigraphs, SA); 3378 } 3379 3380 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3381 GenerateArg(Args, OPT_fblocks, SA); 3382 3383 if (Opts.ConvergentFunctions && 3384 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3385 GenerateArg(Args, OPT_fconvergent_functions, SA); 3386 3387 if (Opts.NoBuiltin && !Opts.Freestanding) 3388 GenerateArg(Args, OPT_fno_builtin, SA); 3389 3390 if (!Opts.NoBuiltin) 3391 for (const auto &Func : Opts.NoBuiltinFuncs) 3392 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3393 3394 if (Opts.LongDoubleSize == 128) 3395 GenerateArg(Args, OPT_mlong_double_128, SA); 3396 else if (Opts.LongDoubleSize == 64) 3397 GenerateArg(Args, OPT_mlong_double_64, SA); 3398 3399 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3400 3401 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3402 // '-fopenmp-targets='. 3403 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3404 GenerateArg(Args, OPT_fopenmp, SA); 3405 3406 if (Opts.OpenMP != 50) 3407 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3408 3409 if (!Opts.OpenMPUseTLS) 3410 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3411 3412 if (Opts.OpenMPIsDevice) 3413 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3414 3415 if (Opts.OpenMPIRBuilder) 3416 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3417 } 3418 3419 if (Opts.OpenMPSimd) { 3420 GenerateArg(Args, OPT_fopenmp_simd, SA); 3421 3422 if (Opts.OpenMP != 50) 3423 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3424 } 3425 3426 if (Opts.OpenMPCUDANumSMs != 0) 3427 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3428 Twine(Opts.OpenMPCUDANumSMs), SA); 3429 3430 if (Opts.OpenMPCUDABlocksPerSM != 0) 3431 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3432 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3433 3434 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3435 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3436 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3437 3438 if (!Opts.OMPTargetTriples.empty()) { 3439 std::string Targets; 3440 llvm::raw_string_ostream OS(Targets); 3441 llvm::interleave( 3442 Opts.OMPTargetTriples, OS, 3443 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3444 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3445 } 3446 3447 if (!Opts.OMPHostIRFile.empty()) 3448 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3449 3450 if (Opts.OpenMPCUDAMode) 3451 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3452 3453 if (Opts.OpenMPCUDATargetParallel) 3454 GenerateArg(Args, OPT_fopenmp_cuda_parallel_target_regions, SA); 3455 3456 if (Opts.OpenMPCUDAForceFullRuntime) 3457 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3458 3459 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3460 // generated from CodeGenOptions. 3461 3462 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3463 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3464 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3465 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3466 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3467 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3468 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3469 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3470 3471 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3472 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3473 3474 // Conflating '-fsanitize-system-blacklist' and '-fsanitize-blacklist'. 3475 for (const std::string &F : Opts.NoSanitizeFiles) 3476 GenerateArg(Args, OPT_fsanitize_blacklist, F, SA); 3477 3478 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3479 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3480 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3481 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3482 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3483 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3484 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3485 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3486 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3487 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3488 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3489 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3490 3491 if (Opts.getSignReturnAddressScope() == 3492 LangOptions::SignReturnAddressScopeKind::All) 3493 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3494 else if (Opts.getSignReturnAddressScope() == 3495 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3496 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3497 3498 if (Opts.getSignReturnAddressKey() == 3499 LangOptions::SignReturnAddressKeyKind::BKey) 3500 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3501 } 3502 3503 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3504 InputKind IK, const llvm::Triple &T, 3505 std::vector<std::string> &Includes, 3506 DiagnosticsEngine &Diags) { 3507 unsigned NumErrorsBefore = Diags.getNumErrors(); 3508 3509 // FIXME: Cleanup per-file based stuff. 3510 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3511 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3512 LangStd = LangStandard::getLangKind(A->getValue()); 3513 if (LangStd == LangStandard::lang_unspecified) { 3514 Diags.Report(diag::err_drv_invalid_value) 3515 << A->getAsString(Args) << A->getValue(); 3516 // Report supported standards with short description. 3517 for (unsigned KindValue = 0; 3518 KindValue != LangStandard::lang_unspecified; 3519 ++KindValue) { 3520 const LangStandard &Std = LangStandard::getLangStandardForKind( 3521 static_cast<LangStandard::Kind>(KindValue)); 3522 if (IsInputCompatibleWithStandard(IK, Std)) { 3523 auto Diag = Diags.Report(diag::note_drv_use_standard); 3524 Diag << Std.getName() << Std.getDescription(); 3525 unsigned NumAliases = 0; 3526 #define LANGSTANDARD(id, name, lang, desc, features) 3527 #define LANGSTANDARD_ALIAS(id, alias) \ 3528 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3529 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3530 #include "clang/Basic/LangStandards.def" 3531 Diag << NumAliases; 3532 #define LANGSTANDARD(id, name, lang, desc, features) 3533 #define LANGSTANDARD_ALIAS(id, alias) \ 3534 if (KindValue == LangStandard::lang_##id) Diag << alias; 3535 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3536 #include "clang/Basic/LangStandards.def" 3537 } 3538 } 3539 } else { 3540 // Valid standard, check to make sure language and standard are 3541 // compatible. 3542 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3543 if (!IsInputCompatibleWithStandard(IK, Std)) { 3544 Diags.Report(diag::err_drv_argument_not_allowed_with) 3545 << A->getAsString(Args) << GetInputKindName(IK); 3546 } 3547 } 3548 } 3549 3550 // -cl-std only applies for OpenCL language standards. 3551 // Override the -std option in this case. 3552 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3553 LangStandard::Kind OpenCLLangStd 3554 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3555 .Cases("cl", "CL", LangStandard::lang_opencl10) 3556 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3557 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3558 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3559 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3560 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3561 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 3562 .Default(LangStandard::lang_unspecified); 3563 3564 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3565 Diags.Report(diag::err_drv_invalid_value) 3566 << A->getAsString(Args) << A->getValue(); 3567 } 3568 else 3569 LangStd = OpenCLLangStd; 3570 } 3571 3572 // These need to be parsed now. They are used to set OpenCL defaults. 3573 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3574 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3575 3576 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd); 3577 3578 // The key paths of codegen options defined in Options.td start with 3579 // "LangOpts->". Let's provide the expected variable name and type. 3580 LangOptions *LangOpts = &Opts; 3581 bool Success = true; 3582 3583 #define LANG_OPTION_WITH_MARSHALLING( \ 3584 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3585 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3586 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3587 MERGER, EXTRACTOR, TABLE_INDEX) \ 3588 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 3589 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3590 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 3591 MERGER, TABLE_INDEX) 3592 #include "clang/Driver/Options.inc" 3593 #undef LANG_OPTION_WITH_MARSHALLING 3594 3595 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3596 StringRef Name = A->getValue(); 3597 if (Name == "full" || Name == "branch") { 3598 Opts.CFProtectionBranch = 1; 3599 } 3600 } 3601 3602 if (Opts.ObjC) { 3603 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3604 StringRef value = arg->getValue(); 3605 if (Opts.ObjCRuntime.tryParse(value)) 3606 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3607 } 3608 3609 if (Args.hasArg(OPT_fobjc_gc_only)) 3610 Opts.setGC(LangOptions::GCOnly); 3611 else if (Args.hasArg(OPT_fobjc_gc)) 3612 Opts.setGC(LangOptions::HybridGC); 3613 else if (Args.hasArg(OPT_fobjc_arc)) { 3614 Opts.ObjCAutoRefCount = 1; 3615 if (!Opts.ObjCRuntime.allowsARC()) 3616 Diags.Report(diag::err_arc_unsupported_on_runtime); 3617 } 3618 3619 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3620 // whether the feature is actually enabled. This is predominantly 3621 // determined by -fobjc-runtime, but we allow it to be overridden 3622 // from the command line for testing purposes. 3623 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3624 Opts.ObjCWeakRuntime = 1; 3625 else 3626 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3627 3628 // ObjCWeak determines whether __weak is actually enabled. 3629 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3630 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3631 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3632 assert(!Opts.ObjCWeak); 3633 } else if (Opts.getGC() != LangOptions::NonGC) { 3634 Diags.Report(diag::err_objc_weak_with_gc); 3635 } else if (!Opts.ObjCWeakRuntime) { 3636 Diags.Report(diag::err_objc_weak_unsupported); 3637 } else { 3638 Opts.ObjCWeak = 1; 3639 } 3640 } else if (Opts.ObjCAutoRefCount) { 3641 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3642 } 3643 3644 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3645 Opts.ObjCSubscriptingLegacyRuntime = 3646 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3647 } 3648 3649 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3650 // Check that the version has 1 to 3 components and the minor and patch 3651 // versions fit in two decimal digits. 3652 VersionTuple GNUCVer; 3653 bool Invalid = GNUCVer.tryParse(A->getValue()); 3654 unsigned Major = GNUCVer.getMajor(); 3655 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3656 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3657 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3658 Diags.Report(diag::err_drv_invalid_value) 3659 << A->getAsString(Args) << A->getValue(); 3660 } 3661 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3662 } 3663 3664 // In AIX OS, the -mignore-xcoff-visibility is enable by default if there is 3665 // no -fvisibility=* option. 3666 // This is the reason why '-fvisibility' needs to be always generated: 3667 // its absence implies '-mignore-xcoff-visibility'. 3668 // 3669 // Suppose the original cc1 command line does contain '-fvisibility default': 3670 // '-mignore-xcoff-visibility' should not be implied. 3671 // * If '-fvisibility' is not generated (as most options with default values 3672 // don't), its absence would imply '-mignore-xcoff-visibility'. This changes 3673 // the command line semantics. 3674 // * If '-fvisibility' is generated regardless of its presence and value, 3675 // '-mignore-xcoff-visibility' won't be implied and the command line 3676 // semantics are kept intact. 3677 // 3678 // When the original cc1 command line does **not** contain '-fvisibility', 3679 // '-mignore-xcoff-visibility' is implied. The generated command line will 3680 // contain both '-fvisibility default' and '-mignore-xcoff-visibility' and 3681 // subsequent calls to `CreateFromArgs`/`generateCC1CommandLine` will always 3682 // produce the same arguments. 3683 3684 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 3685 !Args.hasArg(OPT_fvisibility))) 3686 Opts.IgnoreXCOFFVisibility = 1; 3687 3688 if (Args.hasArg(OPT_ftrapv)) { 3689 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3690 // Set the handler, if one is specified. 3691 Opts.OverflowHandler = 3692 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3693 } 3694 else if (Args.hasArg(OPT_fwrapv)) 3695 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3696 3697 Opts.MSCompatibilityVersion = 0; 3698 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3699 VersionTuple VT; 3700 if (VT.tryParse(A->getValue())) 3701 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3702 << A->getValue(); 3703 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3704 VT.getMinor().getValueOr(0) * 100000 + 3705 VT.getSubminor().getValueOr(0); 3706 } 3707 3708 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3709 // is specified, or -std is set to a conforming mode. 3710 // Trigraphs are disabled by default in c++1z onwards. 3711 // For z/OS, trigraphs are enabled by default (without regard to the above). 3712 Opts.Trigraphs = 3713 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3714 Opts.Trigraphs = 3715 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3716 3717 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3718 && Opts.OpenCLVersion == 200); 3719 3720 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3721 Opts.SYCLIsDevice || 3722 Args.hasArg(OPT_fconvergent_functions); 3723 3724 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3725 if (!Opts.NoBuiltin) 3726 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3727 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3728 ? 128 3729 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3730 if (Opts.FastRelaxedMath) 3731 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3732 llvm::sort(Opts.ModuleFeatures); 3733 3734 // -mrtd option 3735 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3736 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3737 Diags.Report(diag::err_drv_argument_not_allowed_with) 3738 << A->getSpelling() << "-fdefault-calling-conv"; 3739 else { 3740 if (T.getArch() != llvm::Triple::x86) 3741 Diags.Report(diag::err_drv_argument_not_allowed_with) 3742 << A->getSpelling() << T.getTriple(); 3743 else 3744 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3745 } 3746 } 3747 3748 // Check if -fopenmp is specified and set default version to 5.0. 3749 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3750 // Check if -fopenmp-simd is specified. 3751 bool IsSimdSpecified = 3752 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3753 /*Default=*/false); 3754 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3755 Opts.OpenMPUseTLS = 3756 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3757 Opts.OpenMPIsDevice = 3758 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3759 Opts.OpenMPIRBuilder = 3760 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3761 bool IsTargetSpecified = 3762 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3763 3764 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3765 3766 if (Opts.OpenMP || Opts.OpenMPSimd) { 3767 if (int Version = getLastArgIntValue( 3768 Args, OPT_fopenmp_version_EQ, 3769 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3770 Opts.OpenMP = Version; 3771 // Provide diagnostic when a given target is not expected to be an OpenMP 3772 // device or host. 3773 if (!Opts.OpenMPIsDevice) { 3774 switch (T.getArch()) { 3775 default: 3776 break; 3777 // Add unsupported host targets here: 3778 case llvm::Triple::nvptx: 3779 case llvm::Triple::nvptx64: 3780 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3781 break; 3782 } 3783 } 3784 } 3785 3786 // Set the flag to prevent the implementation from emitting device exception 3787 // handling code for those requiring so. 3788 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3789 Opts.OpenCLCPlusPlus) { 3790 Opts.Exceptions = 0; 3791 Opts.CXXExceptions = 0; 3792 } 3793 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3794 Opts.OpenMPCUDANumSMs = 3795 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3796 Opts.OpenMPCUDANumSMs, Diags); 3797 Opts.OpenMPCUDABlocksPerSM = 3798 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3799 Opts.OpenMPCUDABlocksPerSM, Diags); 3800 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3801 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3802 Opts.OpenMPCUDAReductionBufNum, Diags); 3803 } 3804 3805 // Get the OpenMP target triples if any. 3806 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3807 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3808 auto getArchPtrSize = [](const llvm::Triple &T) { 3809 if (T.isArch16Bit()) 3810 return Arch16Bit; 3811 if (T.isArch32Bit()) 3812 return Arch32Bit; 3813 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3814 return Arch64Bit; 3815 }; 3816 3817 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3818 llvm::Triple TT(A->getValue(i)); 3819 3820 if (TT.getArch() == llvm::Triple::UnknownArch || 3821 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3822 TT.getArch() == llvm::Triple::nvptx || 3823 TT.getArch() == llvm::Triple::nvptx64 || 3824 TT.getArch() == llvm::Triple::amdgcn || 3825 TT.getArch() == llvm::Triple::x86 || 3826 TT.getArch() == llvm::Triple::x86_64)) 3827 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3828 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3829 Diags.Report(diag::err_drv_incompatible_omp_arch) 3830 << A->getValue(i) << T.str(); 3831 else 3832 Opts.OMPTargetTriples.push_back(TT); 3833 } 3834 } 3835 3836 // Get OpenMP host file path if any and report if a non existent file is 3837 // found 3838 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3839 Opts.OMPHostIRFile = A->getValue(); 3840 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3841 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3842 << Opts.OMPHostIRFile; 3843 } 3844 3845 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3846 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3847 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3848 3849 // Set CUDA support for parallel execution of target regions for OpenMP target 3850 // NVPTX/AMDGCN if specified in options. 3851 Opts.OpenMPCUDATargetParallel = 3852 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3853 Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions); 3854 3855 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3856 Opts.OpenMPCUDAForceFullRuntime = 3857 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3858 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3859 3860 // FIXME: Eliminate this dependency. 3861 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3862 OptSize = getOptimizationLevelSize(Args); 3863 Opts.Optimize = Opt != 0; 3864 Opts.OptimizeSize = OptSize != 0; 3865 3866 // This is the __NO_INLINE__ define, which just depends on things like the 3867 // optimization level and -fno-inline, not actually whether the backend has 3868 // inlining enabled. 3869 Opts.NoInlineDefine = !Opts.Optimize; 3870 if (Arg *InlineArg = Args.getLastArg( 3871 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3872 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3873 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3874 Opts.NoInlineDefine = true; 3875 3876 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3877 StringRef Val = A->getValue(); 3878 if (Val == "fast") 3879 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3880 else if (Val == "on") 3881 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3882 else if (Val == "off") 3883 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3884 else if (Val == "fast-honor-pragmas") 3885 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3886 else 3887 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3888 } 3889 3890 // Parse -fsanitize= arguments. 3891 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3892 Diags, Opts.Sanitize); 3893 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 3894 std::vector<std::string> systemBlacklists = 3895 Args.getAllArgValues(OPT_fsanitize_system_blacklist); 3896 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3897 systemBlacklists.begin(), systemBlacklists.end()); 3898 3899 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3900 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3901 3902 StringRef Ver = A->getValue(); 3903 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3904 unsigned Major, Minor = 0; 3905 3906 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3907 // y or y.0 (4 <= y <= current version). 3908 if (!VerParts.first.startswith("0") && 3909 !VerParts.first.getAsInteger(10, Major) && 3910 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3911 (Major == 3 ? VerParts.second.size() == 1 && 3912 !VerParts.second.getAsInteger(10, Minor) 3913 : VerParts.first.size() == Ver.size() || 3914 VerParts.second == "0")) { 3915 // Got a valid version number. 3916 if (Major == 3 && Minor <= 8) 3917 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3918 else if (Major <= 4) 3919 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3920 else if (Major <= 6) 3921 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3922 else if (Major <= 7) 3923 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3924 else if (Major <= 9) 3925 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3926 else if (Major <= 11) 3927 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 3928 } else if (Ver != "latest") { 3929 Diags.Report(diag::err_drv_invalid_value) 3930 << A->getAsString(Args) << A->getValue(); 3931 } 3932 } 3933 3934 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3935 StringRef SignScope = A->getValue(); 3936 3937 if (SignScope.equals_lower("none")) 3938 Opts.setSignReturnAddressScope( 3939 LangOptions::SignReturnAddressScopeKind::None); 3940 else if (SignScope.equals_lower("all")) 3941 Opts.setSignReturnAddressScope( 3942 LangOptions::SignReturnAddressScopeKind::All); 3943 else if (SignScope.equals_lower("non-leaf")) 3944 Opts.setSignReturnAddressScope( 3945 LangOptions::SignReturnAddressScopeKind::NonLeaf); 3946 else 3947 Diags.Report(diag::err_drv_invalid_value) 3948 << A->getAsString(Args) << SignScope; 3949 3950 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 3951 StringRef SignKey = A->getValue(); 3952 if (!SignScope.empty() && !SignKey.empty()) { 3953 if (SignKey.equals_lower("a_key")) 3954 Opts.setSignReturnAddressKey( 3955 LangOptions::SignReturnAddressKeyKind::AKey); 3956 else if (SignKey.equals_lower("b_key")) 3957 Opts.setSignReturnAddressKey( 3958 LangOptions::SignReturnAddressKeyKind::BKey); 3959 else 3960 Diags.Report(diag::err_drv_invalid_value) 3961 << A->getAsString(Args) << SignKey; 3962 } 3963 } 3964 } 3965 3966 return Success && Diags.getNumErrors() == NumErrorsBefore; 3967 } 3968 3969 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 3970 switch (Action) { 3971 case frontend::ASTDeclList: 3972 case frontend::ASTDump: 3973 case frontend::ASTPrint: 3974 case frontend::ASTView: 3975 case frontend::EmitAssembly: 3976 case frontend::EmitBC: 3977 case frontend::EmitHTML: 3978 case frontend::EmitLLVM: 3979 case frontend::EmitLLVMOnly: 3980 case frontend::EmitCodeGenOnly: 3981 case frontend::EmitObj: 3982 case frontend::FixIt: 3983 case frontend::GenerateModule: 3984 case frontend::GenerateModuleInterface: 3985 case frontend::GenerateHeaderModule: 3986 case frontend::GeneratePCH: 3987 case frontend::GenerateInterfaceStubs: 3988 case frontend::ParseSyntaxOnly: 3989 case frontend::ModuleFileInfo: 3990 case frontend::VerifyPCH: 3991 case frontend::PluginAction: 3992 case frontend::RewriteObjC: 3993 case frontend::RewriteTest: 3994 case frontend::RunAnalysis: 3995 case frontend::TemplightDump: 3996 case frontend::MigrateSource: 3997 return false; 3998 3999 case frontend::DumpCompilerOptions: 4000 case frontend::DumpRawTokens: 4001 case frontend::DumpTokens: 4002 case frontend::InitOnly: 4003 case frontend::PrintPreamble: 4004 case frontend::PrintPreprocessedInput: 4005 case frontend::RewriteMacros: 4006 case frontend::RunPreprocessorOnly: 4007 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4008 return true; 4009 } 4010 llvm_unreachable("invalid frontend action"); 4011 } 4012 4013 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4014 SmallVectorImpl<const char *> &Args, 4015 CompilerInvocation::StringAllocator SA, 4016 const LangOptions &LangOpts, 4017 const FrontendOptions &FrontendOpts, 4018 const CodeGenOptions &CodeGenOpts) { 4019 PreprocessorOptions *PreprocessorOpts = &Opts; 4020 4021 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4022 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4023 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4024 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4025 MERGER, EXTRACTOR, TABLE_INDEX) \ 4026 GENERATE_OPTION_WITH_MARSHALLING( \ 4027 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4028 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4029 #include "clang/Driver/Options.inc" 4030 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4031 4032 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4033 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4034 4035 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4036 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4037 4038 for (const auto &MP : Opts.MacroPrefixMap) 4039 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 4040 4041 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4042 GenerateArg(Args, OPT_preamble_bytes_EQ, 4043 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4044 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4045 SA); 4046 4047 for (const auto &M : Opts.Macros) { 4048 // Don't generate __CET__ macro definitions. They are implied by the 4049 // -fcf-protection option that is generated elsewhere. 4050 if (M.first == "__CET__=1" && !M.second && 4051 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4052 continue; 4053 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4054 !CodeGenOpts.CFProtectionBranch) 4055 continue; 4056 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4057 CodeGenOpts.CFProtectionBranch) 4058 continue; 4059 4060 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4061 } 4062 4063 for (const auto &I : Opts.Includes) { 4064 // Don't generate OpenCL includes. They are implied by other flags that are 4065 // generated elsewhere. 4066 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4067 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4068 I == "opencl-c.h")) 4069 continue; 4070 4071 GenerateArg(Args, OPT_include, I, SA); 4072 } 4073 4074 for (const auto &CI : Opts.ChainedIncludes) 4075 GenerateArg(Args, OPT_chain_include, CI, SA); 4076 4077 for (const auto &RF : Opts.RemappedFiles) 4078 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4079 4080 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4081 // generated elsewhere. 4082 } 4083 4084 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4085 DiagnosticsEngine &Diags, 4086 frontend::ActionKind Action, 4087 const FrontendOptions &FrontendOpts) { 4088 PreprocessorOptions *PreprocessorOpts = &Opts; 4089 bool Success = true; 4090 4091 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4092 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4093 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4094 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4095 MERGER, EXTRACTOR, TABLE_INDEX) \ 4096 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4097 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4098 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4099 MERGER, TABLE_INDEX) 4100 #include "clang/Driver/Options.inc" 4101 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4102 4103 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4104 Args.hasArg(OPT_pch_through_hdrstop_use); 4105 4106 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4107 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4108 4109 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4110 auto Split = StringRef(A).split('='); 4111 Opts.MacroPrefixMap.insert( 4112 {std::string(Split.first), std::string(Split.second)}); 4113 } 4114 4115 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4116 StringRef Value(A->getValue()); 4117 size_t Comma = Value.find(','); 4118 unsigned Bytes = 0; 4119 unsigned EndOfLine = 0; 4120 4121 if (Comma == StringRef::npos || 4122 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4123 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4124 Diags.Report(diag::err_drv_preamble_format); 4125 else { 4126 Opts.PrecompiledPreambleBytes.first = Bytes; 4127 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4128 } 4129 } 4130 4131 // Add the __CET__ macro if a CFProtection option is set. 4132 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4133 StringRef Name = A->getValue(); 4134 if (Name == "branch") 4135 Opts.addMacroDef("__CET__=1"); 4136 else if (Name == "return") 4137 Opts.addMacroDef("__CET__=2"); 4138 else if (Name == "full") 4139 Opts.addMacroDef("__CET__=3"); 4140 } 4141 4142 // Add macros from the command line. 4143 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4144 if (A->getOption().matches(OPT_D)) 4145 Opts.addMacroDef(A->getValue()); 4146 else 4147 Opts.addMacroUndef(A->getValue()); 4148 } 4149 4150 // Add the ordered list of -includes. 4151 for (const auto *A : Args.filtered(OPT_include)) 4152 Opts.Includes.emplace_back(A->getValue()); 4153 4154 for (const auto *A : Args.filtered(OPT_chain_include)) 4155 Opts.ChainedIncludes.emplace_back(A->getValue()); 4156 4157 for (const auto *A : Args.filtered(OPT_remap_file)) { 4158 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4159 4160 if (Split.second.empty()) { 4161 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4162 continue; 4163 } 4164 4165 Opts.addRemappedFile(Split.first, Split.second); 4166 } 4167 4168 // Always avoid lexing editor placeholders when we're just running the 4169 // preprocessor as we never want to emit the 4170 // "editor placeholder in source file" error in PP only mode. 4171 if (isStrictlyPreprocessorAction(Action)) 4172 Opts.LexEditorPlaceholders = false; 4173 4174 return Success; 4175 } 4176 4177 static void GeneratePreprocessorOutputArgs( 4178 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4179 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4180 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4181 4182 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4183 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4184 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4185 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4186 MERGER, EXTRACTOR, TABLE_INDEX) \ 4187 GENERATE_OPTION_WITH_MARSHALLING( \ 4188 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4189 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4190 #include "clang/Driver/Options.inc" 4191 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4192 4193 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4194 if (Generate_dM) 4195 GenerateArg(Args, OPT_dM, SA); 4196 if (!Generate_dM && Opts.ShowMacros) 4197 GenerateArg(Args, OPT_dD, SA); 4198 } 4199 4200 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4201 ArgList &Args, DiagnosticsEngine &Diags, 4202 frontend::ActionKind Action) { 4203 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4204 unsigned NumErrorsBefore = Diags.getNumErrors(); 4205 bool Success = true; 4206 4207 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4208 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4209 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4210 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4211 MERGER, EXTRACTOR, TABLE_INDEX) \ 4212 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4213 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4214 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4215 MERGER, TABLE_INDEX) 4216 #include "clang/Driver/Options.inc" 4217 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4218 4219 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4220 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4221 4222 return Success && Diags.getNumErrors() == NumErrorsBefore; 4223 } 4224 4225 static void GenerateTargetArgs(const TargetOptions &Opts, 4226 SmallVectorImpl<const char *> &Args, 4227 CompilerInvocation::StringAllocator SA) { 4228 const TargetOptions *TargetOpts = &Opts; 4229 #define TARGET_OPTION_WITH_MARSHALLING( \ 4230 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4231 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4232 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4233 MERGER, EXTRACTOR, TABLE_INDEX) \ 4234 GENERATE_OPTION_WITH_MARSHALLING( \ 4235 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4236 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4237 #include "clang/Driver/Options.inc" 4238 #undef TARGET_OPTION_WITH_MARSHALLING 4239 4240 if (!Opts.SDKVersion.empty()) 4241 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4242 SA); 4243 } 4244 4245 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4246 DiagnosticsEngine &Diags) { 4247 TargetOptions *TargetOpts = &Opts; 4248 unsigned NumErrorsBefore = Diags.getNumErrors(); 4249 bool Success = true; 4250 4251 #define TARGET_OPTION_WITH_MARSHALLING( \ 4252 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4253 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4254 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4255 MERGER, EXTRACTOR, TABLE_INDEX) \ 4256 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \ 4257 SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4258 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \ 4259 MERGER, TABLE_INDEX) 4260 #include "clang/Driver/Options.inc" 4261 #undef TARGET_OPTION_WITH_MARSHALLING 4262 4263 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4264 llvm::VersionTuple Version; 4265 if (Version.tryParse(A->getValue())) 4266 Diags.Report(diag::err_drv_invalid_value) 4267 << A->getAsString(Args) << A->getValue(); 4268 else 4269 Opts.SDKVersion = Version; 4270 } 4271 4272 return Success && Diags.getNumErrors() == NumErrorsBefore; 4273 } 4274 4275 bool CompilerInvocation::CreateFromArgsImpl( 4276 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4277 DiagnosticsEngine &Diags, const char *Argv0) { 4278 bool Success = true; 4279 4280 // Parse the arguments. 4281 const OptTable &Opts = getDriverOptTable(); 4282 const unsigned IncludedFlagsBitmask = options::CC1Option; 4283 unsigned MissingArgIndex, MissingArgCount; 4284 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4285 MissingArgCount, IncludedFlagsBitmask); 4286 LangOptions &LangOpts = *Res.getLangOpts(); 4287 4288 // Check for missing argument error. 4289 if (MissingArgCount) { 4290 Diags.Report(diag::err_drv_missing_argument) 4291 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4292 Success = false; 4293 } 4294 4295 // Issue errors on unknown arguments. 4296 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4297 auto ArgString = A->getAsString(Args); 4298 std::string Nearest; 4299 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4300 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4301 else 4302 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4303 << ArgString << Nearest; 4304 Success = false; 4305 } 4306 4307 Success &= ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4308 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4309 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4310 Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4311 /*DefaultDiagColor=*/false); 4312 Success &= ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 4313 LangOpts.IsHeaderFile); 4314 // FIXME: We shouldn't have to pass the DashX option around here 4315 InputKind DashX = Res.getFrontendOpts().DashX; 4316 Success &= ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4317 llvm::Triple T(Res.getTargetOpts().Triple); 4318 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4319 Res.getFileSystemOpts().WorkingDir); 4320 if (DashX.getFormat() == InputKind::Precompiled || 4321 DashX.getLanguage() == Language::LLVM_IR) { 4322 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 4323 // PassManager in BackendUtil.cpp. They need to be initializd no matter 4324 // what the input type is. 4325 if (Args.hasArg(OPT_fobjc_arc)) 4326 LangOpts.ObjCAutoRefCount = 1; 4327 // PIClevel and PIELevel are needed during code generation and this should be 4328 // set regardless of the input type. 4329 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 4330 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 4331 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4332 Diags, LangOpts.Sanitize); 4333 } else { 4334 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 4335 // FIXME: Should we really be calling this for an Language::Asm input? 4336 Success &= ParseLangArgs(LangOpts, Args, DashX, T, 4337 Res.getPreprocessorOpts().Includes, Diags); 4338 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4339 LangOpts.ObjCExceptions = 1; 4340 } 4341 4342 if (LangOpts.CUDA) { 4343 // During CUDA device-side compilation, the aux triple is the 4344 // triple used for host compilation. 4345 if (LangOpts.CUDAIsDevice) 4346 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4347 } 4348 4349 // Set the triple of the host for OpenMP device compile. 4350 if (LangOpts.OpenMPIsDevice) 4351 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4352 4353 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4354 Res.getFrontendOpts().OutputFile, LangOpts); 4355 4356 // FIXME: Override value name discarding when asan or msan is used because the 4357 // backend passes depend on the name of the alloca in order to print out 4358 // names. 4359 Res.getCodeGenOpts().DiscardValueNames &= 4360 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4361 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4362 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4363 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4364 4365 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4366 Res.getFrontendOpts().ProgramAction, 4367 Res.getFrontendOpts()); 4368 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4369 Res.getFrontendOpts().ProgramAction); 4370 4371 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4372 Res.getFrontendOpts().ProgramAction, 4373 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4374 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4375 Res.getDependencyOutputOpts().Targets.empty()) { 4376 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4377 Success = false; 4378 } 4379 4380 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4381 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4382 !Res.getLangOpts()->Sanitize.empty()) { 4383 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4384 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4385 } 4386 4387 // Store the command-line for using in the CodeView backend. 4388 Res.getCodeGenOpts().Argv0 = Argv0; 4389 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 4390 4391 Success &= FixupInvocation(Res, Diags, Args, DashX); 4392 4393 return Success; 4394 } 4395 4396 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4397 ArrayRef<const char *> CommandLineArgs, 4398 DiagnosticsEngine &Diags, 4399 const char *Argv0) { 4400 CompilerInvocation DummyInvocation; 4401 4402 return RoundTrip( 4403 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4404 DiagnosticsEngine &Diags, const char *Argv0) { 4405 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4406 }, 4407 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4408 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4409 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4410 } 4411 4412 std::string CompilerInvocation::getModuleHash() const { 4413 // Note: For QoI reasons, the things we use as a hash here should all be 4414 // dumped via the -module-info flag. 4415 using llvm::hash_code; 4416 using llvm::hash_value; 4417 using llvm::hash_combine; 4418 using llvm::hash_combine_range; 4419 4420 // Start the signature with the compiler version. 4421 // FIXME: We'd rather use something more cryptographically sound than 4422 // CityHash, but this will do for now. 4423 hash_code code = hash_value(getClangFullRepositoryVersion()); 4424 4425 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4426 // and getClangFullRepositoryVersion() doesn't include git revision. 4427 code = hash_combine(code, serialization::VERSION_MAJOR, 4428 serialization::VERSION_MINOR); 4429 4430 // Extend the signature with the language options 4431 #define LANGOPT(Name, Bits, Default, Description) \ 4432 code = hash_combine(code, LangOpts->Name); 4433 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4434 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 4435 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4436 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4437 #include "clang/Basic/LangOptions.def" 4438 4439 for (StringRef Feature : LangOpts->ModuleFeatures) 4440 code = hash_combine(code, Feature); 4441 4442 code = hash_combine(code, LangOpts->ObjCRuntime); 4443 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 4444 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 4445 4446 // Extend the signature with the target options. 4447 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 4448 TargetOpts->TuneCPU, TargetOpts->ABI); 4449 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 4450 code = hash_combine(code, FeatureAsWritten); 4451 4452 // Extend the signature with preprocessor options. 4453 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4454 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4455 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 4456 4457 for (const auto &I : getPreprocessorOpts().Macros) { 4458 // If we're supposed to ignore this macro for the purposes of modules, 4459 // don't put it into the hash. 4460 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4461 // Check whether we're ignoring this macro. 4462 StringRef MacroDef = I.first; 4463 if (hsOpts.ModulesIgnoreMacros.count( 4464 llvm::CachedHashString(MacroDef.split('=').first))) 4465 continue; 4466 } 4467 4468 code = hash_combine(code, I.first, I.second); 4469 } 4470 4471 // Extend the signature with the sysroot and other header search options. 4472 code = hash_combine(code, hsOpts.Sysroot, 4473 hsOpts.ModuleFormat, 4474 hsOpts.UseDebugInfo, 4475 hsOpts.UseBuiltinIncludes, 4476 hsOpts.UseStandardSystemIncludes, 4477 hsOpts.UseStandardCXXIncludes, 4478 hsOpts.UseLibcxx, 4479 hsOpts.ModulesValidateDiagnosticOptions); 4480 code = hash_combine(code, hsOpts.ResourceDir); 4481 4482 if (hsOpts.ModulesStrictContextHash) { 4483 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 4484 hsOpts.SystemHeaderPrefixes.end()); 4485 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 4486 hsOpts.UserEntries.end()); 4487 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 4488 hsOpts.UserEntries.size(), UEC); 4489 4490 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4491 #define DIAGOPT(Name, Bits, Default) \ 4492 code = hash_combine(code, diagOpts.Name); 4493 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4494 code = hash_combine(code, diagOpts.get##Name()); 4495 #include "clang/Basic/DiagnosticOptions.def" 4496 #undef DIAGOPT 4497 #undef ENUM_DIAGOPT 4498 } 4499 4500 // Extend the signature with the user build path. 4501 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 4502 4503 // Extend the signature with the module file extensions. 4504 const FrontendOptions &frontendOpts = getFrontendOpts(); 4505 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 4506 code = ext->hashExtension(code); 4507 } 4508 4509 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4510 // affects the debug info in the PCM. 4511 if (getCodeGenOpts().DebugTypeExtRefs) 4512 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 4513 code = hash_combine(code, KeyValue.first, KeyValue.second); 4514 4515 // Extend the signature with the enabled sanitizers, if at least one is 4516 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4517 SanitizerSet SanHash = LangOpts->Sanitize; 4518 SanHash.clear(getPPTransparentSanitizers()); 4519 if (!SanHash.empty()) 4520 code = hash_combine(code, SanHash.Mask); 4521 4522 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 4523 } 4524 4525 void CompilerInvocation::generateCC1CommandLine( 4526 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4527 llvm::Triple T(TargetOpts->Triple); 4528 4529 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4530 GenerateMigratorArgs(MigratorOpts, Args, SA); 4531 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4532 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4533 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4534 GenerateTargetArgs(*TargetOpts, Args, SA); 4535 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4536 4537 InputKind DashX = FrontendOpts.DashX; 4538 if (DashX.getFormat() == InputKind::Precompiled || 4539 DashX.getLanguage() == Language::LLVM_IR) { 4540 if (LangOpts->ObjCAutoRefCount) 4541 GenerateArg(Args, OPT_fobjc_arc, SA); 4542 if (LangOpts->PICLevel != 0) 4543 GenerateArg(Args, OPT_pic_level, Twine(LangOpts->PICLevel), SA); 4544 if (LangOpts->PIE) 4545 GenerateArg(Args, OPT_pic_is_pie, SA); 4546 for (StringRef Sanitizer : serializeSanitizerKinds(LangOpts->Sanitize)) 4547 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 4548 } else { 4549 // FIXME: Move this whole condition into GenerateLangArgs. (And do the same 4550 // for ParseLangArgs). 4551 GenerateLangArgs(*LangOpts, Args, SA, T); 4552 } 4553 4554 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4555 &*LangOpts); 4556 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4557 CodeGenOpts); 4558 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4559 FrontendOpts.ProgramAction); 4560 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4561 } 4562 4563 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4564 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4565 DiagnosticsEngine &Diags) { 4566 return createVFSFromCompilerInvocation(CI, Diags, 4567 llvm::vfs::getRealFileSystem()); 4568 } 4569 4570 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4571 clang::createVFSFromCompilerInvocation( 4572 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4573 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4574 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4575 return BaseFS; 4576 4577 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4578 // earlier vfs files are on the bottom 4579 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4580 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4581 Result->getBufferForFile(File); 4582 if (!Buffer) { 4583 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4584 continue; 4585 } 4586 4587 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4588 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4589 /*DiagContext*/ nullptr, Result); 4590 if (!FS) { 4591 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4592 continue; 4593 } 4594 4595 Result = FS; 4596 } 4597 return Result; 4598 } 4599