1 //===- CompilerInvocation.cpp ---------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "clang/Frontend/CompilerInvocation.h" 10 #include "TestModuleFileExtension.h" 11 #include "clang/Basic/Builtins.h" 12 #include "clang/Basic/CharInfo.h" 13 #include "clang/Basic/CodeGenOptions.h" 14 #include "clang/Basic/CommentOptions.h" 15 #include "clang/Basic/DebugInfoOptions.h" 16 #include "clang/Basic/Diagnostic.h" 17 #include "clang/Basic/DiagnosticDriver.h" 18 #include "clang/Basic/DiagnosticOptions.h" 19 #include "clang/Basic/FileSystemOptions.h" 20 #include "clang/Basic/LLVM.h" 21 #include "clang/Basic/LangOptions.h" 22 #include "clang/Basic/LangStandard.h" 23 #include "clang/Basic/ObjCRuntime.h" 24 #include "clang/Basic/Sanitizers.h" 25 #include "clang/Basic/SourceLocation.h" 26 #include "clang/Basic/TargetOptions.h" 27 #include "clang/Basic/Version.h" 28 #include "clang/Basic/Visibility.h" 29 #include "clang/Basic/XRayInstr.h" 30 #include "clang/Config/config.h" 31 #include "clang/Driver/Driver.h" 32 #include "clang/Driver/DriverDiagnostic.h" 33 #include "clang/Driver/Options.h" 34 #include "clang/Frontend/CommandLineSourceLoc.h" 35 #include "clang/Frontend/DependencyOutputOptions.h" 36 #include "clang/Frontend/FrontendDiagnostic.h" 37 #include "clang/Frontend/FrontendOptions.h" 38 #include "clang/Frontend/FrontendPluginRegistry.h" 39 #include "clang/Frontend/MigratorOptions.h" 40 #include "clang/Frontend/PreprocessorOutputOptions.h" 41 #include "clang/Frontend/TextDiagnosticBuffer.h" 42 #include "clang/Frontend/Utils.h" 43 #include "clang/Lex/HeaderSearchOptions.h" 44 #include "clang/Lex/PreprocessorOptions.h" 45 #include "clang/Sema/CodeCompleteOptions.h" 46 #include "clang/Serialization/ASTBitCodes.h" 47 #include "clang/Serialization/ModuleFileExtension.h" 48 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h" 49 #include "llvm/ADT/APInt.h" 50 #include "llvm/ADT/ArrayRef.h" 51 #include "llvm/ADT/CachedHashString.h" 52 #include "llvm/ADT/DenseSet.h" 53 #include "llvm/ADT/FloatingPointMode.h" 54 #include "llvm/ADT/Hashing.h" 55 #include "llvm/ADT/None.h" 56 #include "llvm/ADT/Optional.h" 57 #include "llvm/ADT/STLExtras.h" 58 #include "llvm/ADT/SmallString.h" 59 #include "llvm/ADT/SmallVector.h" 60 #include "llvm/ADT/StringRef.h" 61 #include "llvm/ADT/StringSwitch.h" 62 #include "llvm/ADT/Triple.h" 63 #include "llvm/ADT/Twine.h" 64 #include "llvm/Config/llvm-config.h" 65 #include "llvm/IR/DebugInfoMetadata.h" 66 #include "llvm/Linker/Linker.h" 67 #include "llvm/MC/MCTargetOptions.h" 68 #include "llvm/Option/Arg.h" 69 #include "llvm/Option/ArgList.h" 70 #include "llvm/Option/OptSpecifier.h" 71 #include "llvm/Option/OptTable.h" 72 #include "llvm/Option/Option.h" 73 #include "llvm/ProfileData/InstrProfReader.h" 74 #include "llvm/Remarks/HotnessThresholdParser.h" 75 #include "llvm/Support/CodeGen.h" 76 #include "llvm/Support/Compiler.h" 77 #include "llvm/Support/Error.h" 78 #include "llvm/Support/ErrorHandling.h" 79 #include "llvm/Support/ErrorOr.h" 80 #include "llvm/Support/FileSystem.h" 81 #include "llvm/Support/Host.h" 82 #include "llvm/Support/MathExtras.h" 83 #include "llvm/Support/MemoryBuffer.h" 84 #include "llvm/Support/Path.h" 85 #include "llvm/Support/Process.h" 86 #include "llvm/Support/Regex.h" 87 #include "llvm/Support/VersionTuple.h" 88 #include "llvm/Support/VirtualFileSystem.h" 89 #include "llvm/Support/raw_ostream.h" 90 #include "llvm/Target/TargetOptions.h" 91 #include <algorithm> 92 #include <atomic> 93 #include <cassert> 94 #include <cstddef> 95 #include <cstring> 96 #include <memory> 97 #include <string> 98 #include <tuple> 99 #include <type_traits> 100 #include <utility> 101 #include <vector> 102 103 using namespace clang; 104 using namespace driver; 105 using namespace options; 106 using namespace llvm::opt; 107 108 //===----------------------------------------------------------------------===// 109 // Initialization. 110 //===----------------------------------------------------------------------===// 111 112 CompilerInvocationRefBase::CompilerInvocationRefBase() 113 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 114 DiagnosticOpts(new DiagnosticOptions()), 115 HeaderSearchOpts(new HeaderSearchOptions()), 116 PreprocessorOpts(new PreprocessorOptions()), 117 AnalyzerOpts(new AnalyzerOptions()) {} 118 119 CompilerInvocationRefBase::CompilerInvocationRefBase( 120 const CompilerInvocationRefBase &X) 121 : LangOpts(new LangOptions(*X.getLangOpts())), 122 TargetOpts(new TargetOptions(X.getTargetOpts())), 123 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 124 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 125 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 126 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 127 128 CompilerInvocationRefBase::CompilerInvocationRefBase( 129 CompilerInvocationRefBase &&X) = default; 130 131 CompilerInvocationRefBase & 132 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 133 LangOpts.swap(X.LangOpts); 134 TargetOpts.swap(X.TargetOpts); 135 DiagnosticOpts.swap(X.DiagnosticOpts); 136 HeaderSearchOpts.swap(X.HeaderSearchOpts); 137 PreprocessorOpts.swap(X.PreprocessorOpts); 138 AnalyzerOpts.swap(X.AnalyzerOpts); 139 return *this; 140 } 141 142 CompilerInvocationRefBase & 143 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 144 145 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 146 147 //===----------------------------------------------------------------------===// 148 // Normalizers 149 //===----------------------------------------------------------------------===// 150 151 #define SIMPLE_ENUM_VALUE_TABLE 152 #include "clang/Driver/Options.inc" 153 #undef SIMPLE_ENUM_VALUE_TABLE 154 155 static llvm::Optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 156 unsigned TableIndex, 157 const ArgList &Args, 158 DiagnosticsEngine &Diags) { 159 if (Args.hasArg(Opt)) 160 return true; 161 return None; 162 } 163 164 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 165 const ArgList &Args, 166 DiagnosticsEngine &) { 167 if (Args.hasArg(Opt)) 168 return false; 169 return None; 170 } 171 172 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 173 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 174 /// unnecessary template instantiations and just ignore it with a variadic 175 /// argument. 176 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 177 const char *Spelling, 178 CompilerInvocation::StringAllocator, 179 Option::OptionClass, unsigned, /*T*/...) { 180 Args.push_back(Spelling); 181 } 182 183 template <typename T> static constexpr bool is_uint64_t_convertible() { 184 return !std::is_same<T, uint64_t>::value && 185 llvm::is_integral_or_enum<T>::value; 186 } 187 188 template <typename T, 189 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 190 static auto makeFlagToValueNormalizer(T Value) { 191 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 192 DiagnosticsEngine &) -> Optional<T> { 193 if (Args.hasArg(Opt)) 194 return Value; 195 return None; 196 }; 197 } 198 199 template <typename T, 200 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 201 static auto makeFlagToValueNormalizer(T Value) { 202 return makeFlagToValueNormalizer(uint64_t(Value)); 203 } 204 205 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 206 OptSpecifier OtherOpt) { 207 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 208 const ArgList &Args, 209 DiagnosticsEngine &) -> Optional<bool> { 210 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 211 return A->getOption().matches(Opt) ? Value : OtherValue; 212 } 213 return None; 214 }; 215 } 216 217 static auto makeBooleanOptionDenormalizer(bool Value) { 218 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 219 CompilerInvocation::StringAllocator, Option::OptionClass, 220 unsigned, bool KeyPath) { 221 if (KeyPath == Value) 222 Args.push_back(Spelling); 223 }; 224 } 225 226 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 227 const char *Spelling, 228 CompilerInvocation::StringAllocator SA, 229 Option::OptionClass OptClass, unsigned, 230 const Twine &Value) { 231 switch (OptClass) { 232 case Option::SeparateClass: 233 case Option::JoinedOrSeparateClass: 234 case Option::JoinedAndSeparateClass: 235 Args.push_back(Spelling); 236 Args.push_back(SA(Value)); 237 break; 238 case Option::JoinedClass: 239 case Option::CommaJoinedClass: 240 Args.push_back(SA(Twine(Spelling) + Value)); 241 break; 242 default: 243 llvm_unreachable("Cannot denormalize an option with option class " 244 "incompatible with string denormalization."); 245 } 246 } 247 248 template <typename T> 249 static void 250 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 251 CompilerInvocation::StringAllocator SA, 252 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 253 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 254 } 255 256 static Optional<SimpleEnumValue> 257 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 258 for (int I = 0, E = Table.Size; I != E; ++I) 259 if (Name == Table.Table[I].Name) 260 return Table.Table[I]; 261 262 return None; 263 } 264 265 static Optional<SimpleEnumValue> 266 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 267 for (int I = 0, E = Table.Size; I != E; ++I) 268 if (Value == Table.Table[I].Value) 269 return Table.Table[I]; 270 271 return None; 272 } 273 274 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 275 unsigned TableIndex, 276 const ArgList &Args, 277 DiagnosticsEngine &Diags) { 278 assert(TableIndex < SimpleEnumValueTablesSize); 279 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 280 281 auto *Arg = Args.getLastArg(Opt); 282 if (!Arg) 283 return None; 284 285 StringRef ArgValue = Arg->getValue(); 286 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 287 return MaybeEnumVal->Value; 288 289 Diags.Report(diag::err_drv_invalid_value) 290 << Arg->getAsString(Args) << ArgValue; 291 return None; 292 } 293 294 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 295 const char *Spelling, 296 CompilerInvocation::StringAllocator SA, 297 Option::OptionClass OptClass, 298 unsigned TableIndex, unsigned Value) { 299 assert(TableIndex < SimpleEnumValueTablesSize); 300 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 301 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 302 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 303 MaybeEnumVal->Name); 304 } else { 305 llvm_unreachable("The simple enum value was not correctly defined in " 306 "the tablegen option description"); 307 } 308 } 309 310 template <typename T> 311 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 312 const char *Spelling, 313 CompilerInvocation::StringAllocator SA, 314 Option::OptionClass OptClass, 315 unsigned TableIndex, T Value) { 316 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 317 static_cast<unsigned>(Value)); 318 } 319 320 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 321 const ArgList &Args, 322 DiagnosticsEngine &Diags) { 323 auto *Arg = Args.getLastArg(Opt); 324 if (!Arg) 325 return None; 326 return std::string(Arg->getValue()); 327 } 328 329 template <typename IntTy> 330 static Optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 331 const ArgList &Args, 332 DiagnosticsEngine &Diags) { 333 auto *Arg = Args.getLastArg(Opt); 334 if (!Arg) 335 return None; 336 IntTy Res; 337 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 338 Diags.Report(diag::err_drv_invalid_int_value) 339 << Arg->getAsString(Args) << Arg->getValue(); 340 return None; 341 } 342 return Res; 343 } 344 345 static Optional<std::vector<std::string>> 346 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 347 DiagnosticsEngine &) { 348 return Args.getAllArgValues(Opt); 349 } 350 351 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 352 const char *Spelling, 353 CompilerInvocation::StringAllocator SA, 354 Option::OptionClass OptClass, 355 unsigned TableIndex, 356 const std::vector<std::string> &Values) { 357 switch (OptClass) { 358 case Option::CommaJoinedClass: { 359 std::string CommaJoinedValue; 360 if (!Values.empty()) { 361 CommaJoinedValue.append(Values.front()); 362 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 363 CommaJoinedValue.append(","); 364 CommaJoinedValue.append(Value); 365 } 366 } 367 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 368 TableIndex, CommaJoinedValue); 369 break; 370 } 371 case Option::JoinedClass: 372 case Option::SeparateClass: 373 case Option::JoinedOrSeparateClass: 374 for (const std::string &Value : Values) 375 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 376 break; 377 default: 378 llvm_unreachable("Cannot denormalize an option with option class " 379 "incompatible with string vector denormalization."); 380 } 381 } 382 383 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 384 const ArgList &Args, 385 DiagnosticsEngine &Diags) { 386 auto *Arg = Args.getLastArg(Opt); 387 if (!Arg) 388 return None; 389 return llvm::Triple::normalize(Arg->getValue()); 390 } 391 392 template <typename T, typename U> 393 static T mergeForwardValue(T KeyPath, U Value) { 394 return static_cast<T>(Value); 395 } 396 397 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 398 return KeyPath | Value; 399 } 400 401 template <typename T> static T extractForwardValue(T KeyPath) { 402 return KeyPath; 403 } 404 405 template <typename T, typename U, U Value> 406 static T extractMaskValue(T KeyPath) { 407 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 408 } 409 410 #define PARSE_OPTION_WITH_MARSHALLING( \ 411 ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 412 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) \ 413 if ((FLAGS)&options::CC1Option) { \ 414 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 415 if (IMPLIED_CHECK) \ 416 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 417 if (SHOULD_PARSE) \ 418 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 419 KEYPATH = \ 420 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 421 } 422 423 // Capture the extracted value as a lambda argument to avoid potential issues 424 // with lifetime extension of the reference. 425 #define GENERATE_OPTION_WITH_MARSHALLING( \ 426 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 427 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 428 TABLE_INDEX) \ 429 if ((FLAGS)&options::CC1Option) { \ 430 [&](const auto &Extracted) { \ 431 if (ALWAYS_EMIT || \ 432 (Extracted != \ 433 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 434 : (DEFAULT_VALUE)))) \ 435 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 436 TABLE_INDEX, Extracted); \ 437 }(EXTRACTOR(KEYPATH)); \ 438 } 439 440 static const StringRef GetInputKindName(InputKind IK); 441 442 static bool FixupInvocation(CompilerInvocation &Invocation, 443 DiagnosticsEngine &Diags, const ArgList &Args, 444 InputKind IK) { 445 unsigned NumErrorsBefore = Diags.getNumErrors(); 446 447 LangOptions &LangOpts = *Invocation.getLangOpts(); 448 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 449 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 450 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 451 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 452 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 453 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 454 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 455 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 456 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 457 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 458 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 459 LangOpts.CurrentModule = LangOpts.ModuleName; 460 461 llvm::Triple T(TargetOpts.Triple); 462 llvm::Triple::ArchType Arch = T.getArch(); 463 464 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 465 466 if (LangOpts.getExceptionHandling() != 467 LangOptions::ExceptionHandlingKind::None && 468 T.isWindowsMSVCEnvironment()) 469 Diags.Report(diag::err_fe_invalid_exception_model) 470 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 471 472 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 473 Diags.Report(diag::warn_c_kext); 474 475 if (Args.hasArg(OPT_fconcepts_ts)) 476 Diags.Report(diag::warn_fe_concepts_ts_flag); 477 478 if (LangOpts.NewAlignOverride && 479 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 480 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 481 Diags.Report(diag::err_fe_invalid_alignment) 482 << A->getAsString(Args) << A->getValue(); 483 LangOpts.NewAlignOverride = 0; 484 } 485 486 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 487 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 488 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 489 << "-fsycl-is-host"; 490 491 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 492 Diags.Report(diag::err_drv_argument_not_allowed_with) 493 << "-fgnu89-inline" << GetInputKindName(IK); 494 495 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 496 Diags.Report(diag::warn_ignored_hip_only_option) 497 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 498 499 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 500 Diags.Report(diag::warn_ignored_hip_only_option) 501 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 502 503 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 504 // This option should be deprecated for CL > 1.0 because 505 // this option was added for compatibility with OpenCL 1.0. 506 if (Args.getLastArg(OPT_cl_strict_aliasing) && LangOpts.OpenCLVersion > 100) 507 Diags.Report(diag::warn_option_invalid_ocl_version) 508 << LangOpts.getOpenCLVersionTuple().getAsString() 509 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 510 511 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 512 auto DefaultCC = LangOpts.getDefaultCallingConv(); 513 514 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 515 DefaultCC == LangOptions::DCC_StdCall) && 516 Arch != llvm::Triple::x86; 517 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 518 DefaultCC == LangOptions::DCC_RegCall) && 519 !T.isX86(); 520 if (emitError) 521 Diags.Report(diag::err_drv_argument_not_allowed_with) 522 << A->getSpelling() << T.getTriple(); 523 } 524 525 if (!CodeGenOpts.ProfileRemappingFile.empty() && CodeGenOpts.LegacyPassManager) 526 Diags.Report(diag::err_drv_argument_only_allowed_with) 527 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 528 << "-fno-legacy-pass-manager"; 529 530 return Diags.getNumErrors() == NumErrorsBefore; 531 } 532 533 //===----------------------------------------------------------------------===// 534 // Deserialization (from args) 535 //===----------------------------------------------------------------------===// 536 537 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 538 DiagnosticsEngine &Diags) { 539 unsigned DefaultOpt = llvm::CodeGenOpt::None; 540 if ((IK.getLanguage() == Language::OpenCL || 541 IK.getLanguage() == Language::OpenCLCXX) && 542 !Args.hasArg(OPT_cl_opt_disable)) 543 DefaultOpt = llvm::CodeGenOpt::Default; 544 545 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 546 if (A->getOption().matches(options::OPT_O0)) 547 return llvm::CodeGenOpt::None; 548 549 if (A->getOption().matches(options::OPT_Ofast)) 550 return llvm::CodeGenOpt::Aggressive; 551 552 assert(A->getOption().matches(options::OPT_O)); 553 554 StringRef S(A->getValue()); 555 if (S == "s" || S == "z") 556 return llvm::CodeGenOpt::Default; 557 558 if (S == "g") 559 return llvm::CodeGenOpt::Less; 560 561 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 562 } 563 564 return DefaultOpt; 565 } 566 567 static unsigned getOptimizationLevelSize(ArgList &Args) { 568 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 569 if (A->getOption().matches(options::OPT_O)) { 570 switch (A->getValue()[0]) { 571 default: 572 return 0; 573 case 's': 574 return 1; 575 case 'z': 576 return 2; 577 } 578 } 579 } 580 return 0; 581 } 582 583 static void GenerateArg(SmallVectorImpl<const char *> &Args, 584 llvm::opt::OptSpecifier OptSpecifier, 585 CompilerInvocation::StringAllocator SA) { 586 Option Opt = getDriverOptTable().getOption(OptSpecifier); 587 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 588 Option::OptionClass::FlagClass, 0); 589 } 590 591 static void GenerateArg(SmallVectorImpl<const char *> &Args, 592 llvm::opt::OptSpecifier OptSpecifier, 593 const Twine &Value, 594 CompilerInvocation::StringAllocator SA) { 595 Option Opt = getDriverOptTable().getOption(OptSpecifier); 596 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 597 Opt.getKind(), 0, Value); 598 } 599 600 // Parse command line arguments into CompilerInvocation. 601 using ParseFn = 602 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 603 DiagnosticsEngine &, const char *)>; 604 605 // Generate command line arguments from CompilerInvocation. 606 using GenerateFn = llvm::function_ref<void( 607 CompilerInvocation &, SmallVectorImpl<const char *> &, 608 CompilerInvocation::StringAllocator)>; 609 610 // May perform round-trip of command line arguments. By default, the round-trip 611 // is enabled if CLANG_ROUND_TRIP_CC1_ARGS was defined during build. This can be 612 // overwritten at run-time via the "-round-trip-args" and "-no-round-trip-args" 613 // command line flags. 614 // During round-trip, the command line arguments are parsed into a dummy 615 // instance of CompilerInvocation which is used to generate the command line 616 // arguments again. The real CompilerInvocation instance is then created by 617 // parsing the generated arguments, not the original ones. 618 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 619 CompilerInvocation &RealInvocation, 620 CompilerInvocation &DummyInvocation, 621 ArrayRef<const char *> CommandLineArgs, 622 DiagnosticsEngine &Diags, const char *Argv0) { 623 // FIXME: Switch to '#ifndef NDEBUG' when possible. 624 #ifdef CLANG_ROUND_TRIP_CC1_ARGS 625 bool DoRoundTripDefault = true; 626 #else 627 bool DoRoundTripDefault = false; 628 #endif 629 630 bool DoRoundTrip = DoRoundTripDefault; 631 for (const auto *Arg : CommandLineArgs) { 632 if (Arg == StringRef("-round-trip-args")) 633 DoRoundTrip = true; 634 if (Arg == StringRef("-no-round-trip-args")) 635 DoRoundTrip = false; 636 } 637 638 // If round-trip was not requested, simply run the parser with the real 639 // invocation diagnostics. 640 if (!DoRoundTrip) 641 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 642 643 // Serializes quoted (and potentially escaped) arguments. 644 auto SerializeArgs = [](ArrayRef<const char *> Args) { 645 std::string Buffer; 646 llvm::raw_string_ostream OS(Buffer); 647 for (const char *Arg : Args) { 648 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 649 OS << ' '; 650 } 651 OS.flush(); 652 return Buffer; 653 }; 654 655 // Setup a dummy DiagnosticsEngine. 656 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 657 DummyDiags.setClient(new TextDiagnosticBuffer()); 658 659 // Run the first parse on the original arguments with the dummy invocation and 660 // diagnostics. 661 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 662 DummyDiags.getNumWarnings() != 0) { 663 // If the first parse did not succeed, it must be user mistake (invalid 664 // command line arguments). We won't be able to generate arguments that 665 // would reproduce the same result. Let's fail again with the real 666 // invocation and diagnostics, so all side-effects of parsing are visible. 667 unsigned NumWarningsBefore = Diags.getNumWarnings(); 668 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 669 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 670 return Success; 671 672 // Parse with original options and diagnostics succeeded even though it 673 // shouldn't have. Something is off. 674 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 675 Diags.Report(diag::note_cc1_round_trip_original) 676 << SerializeArgs(CommandLineArgs); 677 return false; 678 } 679 680 // Setup string allocator. 681 llvm::BumpPtrAllocator Alloc; 682 llvm::StringSaver StringPool(Alloc); 683 auto SA = [&StringPool](const Twine &Arg) { 684 return StringPool.save(Arg).data(); 685 }; 686 687 // Generate arguments from the dummy invocation. If Generate is the 688 // inverse of Parse, the newly generated arguments must have the same 689 // semantics as the original. 690 SmallVector<const char *> GeneratedArgs1; 691 Generate(DummyInvocation, GeneratedArgs1, SA); 692 693 // Run the second parse, now on the generated arguments, and with the real 694 // invocation and diagnostics. The result is what we will end up using for the 695 // rest of compilation, so if Generate is not inverse of Parse, something down 696 // the line will break. 697 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 698 699 // The first parse on original arguments succeeded, but second parse of 700 // generated arguments failed. Something must be wrong with the generator. 701 if (!Success2) { 702 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 703 Diags.Report(diag::note_cc1_round_trip_generated) 704 << 1 << SerializeArgs(GeneratedArgs1); 705 return false; 706 } 707 708 // Generate arguments again, this time from the options we will end up using 709 // for the rest of the compilation. 710 SmallVector<const char *> GeneratedArgs2; 711 Generate(RealInvocation, GeneratedArgs2, SA); 712 713 // Compares two lists of generated arguments. 714 auto Equal = [](const ArrayRef<const char *> A, 715 const ArrayRef<const char *> B) { 716 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 717 [](const char *AElem, const char *BElem) { 718 return StringRef(AElem) == StringRef(BElem); 719 }); 720 }; 721 722 // If we generated different arguments from what we assume are two 723 // semantically equivalent CompilerInvocations, the Generate function may 724 // be non-deterministic. 725 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 726 Diags.Report(diag::err_cc1_round_trip_mismatch); 727 Diags.Report(diag::note_cc1_round_trip_generated) 728 << 1 << SerializeArgs(GeneratedArgs1); 729 Diags.Report(diag::note_cc1_round_trip_generated) 730 << 2 << SerializeArgs(GeneratedArgs2); 731 return false; 732 } 733 734 Diags.Report(diag::remark_cc1_round_trip_generated) 735 << 1 << SerializeArgs(GeneratedArgs1); 736 Diags.Report(diag::remark_cc1_round_trip_generated) 737 << 2 << SerializeArgs(GeneratedArgs2); 738 739 return Success2; 740 } 741 742 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 743 OptSpecifier GroupWithValue, 744 std::vector<std::string> &Diagnostics) { 745 for (auto *A : Args.filtered(Group)) { 746 if (A->getOption().getKind() == Option::FlagClass) { 747 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 748 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 749 Diagnostics.push_back( 750 std::string(A->getOption().getName().drop_front(1))); 751 } else if (A->getOption().matches(GroupWithValue)) { 752 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 753 // group. Add only the group name to the diagnostics. 754 Diagnostics.push_back( 755 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 756 } else { 757 // Otherwise, add its value (for OPT_W_Joined and similar). 758 Diagnostics.push_back(A->getValue()); 759 } 760 } 761 } 762 763 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 764 // it won't verify the input. 765 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 766 DiagnosticsEngine *Diags); 767 768 static void getAllNoBuiltinFuncValues(ArgList &Args, 769 std::vector<std::string> &Funcs) { 770 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 771 auto BuiltinEnd = llvm::partition(Values, [](const std::string FuncName) { 772 return Builtin::Context::isBuiltinFunc(FuncName); 773 }); 774 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 775 } 776 777 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 778 SmallVectorImpl<const char *> &Args, 779 CompilerInvocation::StringAllocator SA) { 780 const AnalyzerOptions *AnalyzerOpts = &Opts; 781 782 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 783 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 784 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 785 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 786 MERGER, EXTRACTOR, TABLE_INDEX) \ 787 GENERATE_OPTION_WITH_MARSHALLING( \ 788 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 789 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 790 #include "clang/Driver/Options.inc" 791 #undef ANALYZER_OPTION_WITH_MARSHALLING 792 793 if (Opts.AnalysisStoreOpt != RegionStoreModel) { 794 switch (Opts.AnalysisStoreOpt) { 795 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 796 case NAME##Model: \ 797 GenerateArg(Args, OPT_analyzer_store, CMDFLAG, SA); \ 798 break; 799 #include "clang/StaticAnalyzer/Core/Analyses.def" 800 default: 801 llvm_unreachable("Tried to generate unknown analysis store."); 802 } 803 } 804 805 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 806 switch (Opts.AnalysisConstraintsOpt) { 807 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 808 case NAME##Model: \ 809 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 810 break; 811 #include "clang/StaticAnalyzer/Core/Analyses.def" 812 default: 813 llvm_unreachable("Tried to generate unknown analysis constraint."); 814 } 815 } 816 817 if (Opts.AnalysisDiagOpt != PD_HTML) { 818 switch (Opts.AnalysisDiagOpt) { 819 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 820 case PD_##NAME: \ 821 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 822 break; 823 #include "clang/StaticAnalyzer/Core/Analyses.def" 824 default: 825 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 826 } 827 } 828 829 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 830 switch (Opts.AnalysisPurgeOpt) { 831 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 832 case NAME: \ 833 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 834 break; 835 #include "clang/StaticAnalyzer/Core/Analyses.def" 836 default: 837 llvm_unreachable("Tried to generate unknown analysis purge mode."); 838 } 839 } 840 841 if (Opts.InliningMode != NoRedundancy) { 842 switch (Opts.InliningMode) { 843 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 844 case NAME: \ 845 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 846 break; 847 #include "clang/StaticAnalyzer/Core/Analyses.def" 848 default: 849 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 850 } 851 } 852 853 for (const auto &CP : Opts.CheckersAndPackages) { 854 OptSpecifier Opt = 855 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 856 GenerateArg(Args, Opt, CP.first, SA); 857 } 858 859 AnalyzerOptions ConfigOpts; 860 parseAnalyzerConfigs(ConfigOpts, nullptr); 861 862 for (const auto &C : Opts.Config) { 863 // Don't generate anything that came from parseAnalyzerConfigs. It would be 864 // redundant and may not be valid on the command line. 865 auto Entry = ConfigOpts.Config.find(C.getKey()); 866 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 867 continue; 868 869 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 870 } 871 872 // Nothing to generate for FullCompilerInvocation. 873 } 874 875 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 876 DiagnosticsEngine &Diags) { 877 unsigned NumErrorsBefore = Diags.getNumErrors(); 878 879 AnalyzerOptions *AnalyzerOpts = &Opts; 880 881 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 882 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 883 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 884 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 885 MERGER, EXTRACTOR, TABLE_INDEX) \ 886 PARSE_OPTION_WITH_MARSHALLING( \ 887 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 888 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 889 #include "clang/Driver/Options.inc" 890 #undef ANALYZER_OPTION_WITH_MARSHALLING 891 892 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 893 StringRef Name = A->getValue(); 894 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 895 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 896 .Case(CMDFLAG, NAME##Model) 897 #include "clang/StaticAnalyzer/Core/Analyses.def" 898 .Default(NumStores); 899 if (Value == NumStores) { 900 Diags.Report(diag::err_drv_invalid_value) 901 << A->getAsString(Args) << Name; 902 } else { 903 Opts.AnalysisStoreOpt = Value; 904 } 905 } 906 907 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 908 StringRef Name = A->getValue(); 909 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 910 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 911 .Case(CMDFLAG, NAME##Model) 912 #include "clang/StaticAnalyzer/Core/Analyses.def" 913 .Default(NumConstraints); 914 if (Value == NumConstraints) { 915 Diags.Report(diag::err_drv_invalid_value) 916 << A->getAsString(Args) << Name; 917 } else { 918 Opts.AnalysisConstraintsOpt = Value; 919 } 920 } 921 922 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 923 StringRef Name = A->getValue(); 924 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 925 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 926 .Case(CMDFLAG, PD_##NAME) 927 #include "clang/StaticAnalyzer/Core/Analyses.def" 928 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 929 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 930 Diags.Report(diag::err_drv_invalid_value) 931 << A->getAsString(Args) << Name; 932 } else { 933 Opts.AnalysisDiagOpt = Value; 934 } 935 } 936 937 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 938 StringRef Name = A->getValue(); 939 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 940 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 941 .Case(CMDFLAG, NAME) 942 #include "clang/StaticAnalyzer/Core/Analyses.def" 943 .Default(NumPurgeModes); 944 if (Value == NumPurgeModes) { 945 Diags.Report(diag::err_drv_invalid_value) 946 << A->getAsString(Args) << Name; 947 } else { 948 Opts.AnalysisPurgeOpt = Value; 949 } 950 } 951 952 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 953 StringRef Name = A->getValue(); 954 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 955 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 956 .Case(CMDFLAG, NAME) 957 #include "clang/StaticAnalyzer/Core/Analyses.def" 958 .Default(NumInliningModes); 959 if (Value == NumInliningModes) { 960 Diags.Report(diag::err_drv_invalid_value) 961 << A->getAsString(Args) << Name; 962 } else { 963 Opts.InliningMode = Value; 964 } 965 } 966 967 Opts.CheckersAndPackages.clear(); 968 for (const Arg *A : 969 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 970 A->claim(); 971 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 972 // We can have a list of comma separated checker names, e.g: 973 // '-analyzer-checker=cocoa,unix' 974 StringRef CheckerAndPackageList = A->getValue(); 975 SmallVector<StringRef, 16> CheckersAndPackages; 976 CheckerAndPackageList.split(CheckersAndPackages, ","); 977 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 978 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 979 IsEnabled); 980 } 981 982 // Go through the analyzer configuration options. 983 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 984 985 // We can have a list of comma separated config names, e.g: 986 // '-analyzer-config key1=val1,key2=val2' 987 StringRef configList = A->getValue(); 988 SmallVector<StringRef, 4> configVals; 989 configList.split(configVals, ","); 990 for (const auto &configVal : configVals) { 991 StringRef key, val; 992 std::tie(key, val) = configVal.split("="); 993 if (val.empty()) { 994 Diags.Report(SourceLocation(), 995 diag::err_analyzer_config_no_value) << configVal; 996 break; 997 } 998 if (val.find('=') != StringRef::npos) { 999 Diags.Report(SourceLocation(), 1000 diag::err_analyzer_config_multiple_values) 1001 << configVal; 1002 break; 1003 } 1004 1005 // TODO: Check checker options too, possibly in CheckerRegistry. 1006 // Leave unknown non-checker configs unclaimed. 1007 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1008 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1009 Diags.Report(diag::err_analyzer_config_unknown) << key; 1010 continue; 1011 } 1012 1013 A->claim(); 1014 Opts.Config[key] = std::string(val); 1015 } 1016 } 1017 1018 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1019 parseAnalyzerConfigs(Opts, &Diags); 1020 else 1021 parseAnalyzerConfigs(Opts, nullptr); 1022 1023 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1024 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1025 if (i != 0) 1026 os << " "; 1027 os << Args.getArgString(i); 1028 } 1029 os.flush(); 1030 1031 return Diags.getNumErrors() == NumErrorsBefore; 1032 } 1033 1034 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1035 StringRef OptionName, StringRef DefaultVal) { 1036 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1037 } 1038 1039 static void initOption(AnalyzerOptions::ConfigTable &Config, 1040 DiagnosticsEngine *Diags, 1041 StringRef &OptionField, StringRef Name, 1042 StringRef DefaultVal) { 1043 // String options may be known to invalid (e.g. if the expected string is a 1044 // file name, but the file does not exist), those will have to be checked in 1045 // parseConfigs. 1046 OptionField = getStringOption(Config, Name, DefaultVal); 1047 } 1048 1049 static void initOption(AnalyzerOptions::ConfigTable &Config, 1050 DiagnosticsEngine *Diags, 1051 bool &OptionField, StringRef Name, bool DefaultVal) { 1052 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1053 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1054 .Case("true", true) 1055 .Case("false", false) 1056 .Default(None); 1057 1058 if (!PossiblyInvalidVal) { 1059 if (Diags) 1060 Diags->Report(diag::err_analyzer_config_invalid_input) 1061 << Name << "a boolean"; 1062 else 1063 OptionField = DefaultVal; 1064 } else 1065 OptionField = PossiblyInvalidVal.getValue(); 1066 } 1067 1068 static void initOption(AnalyzerOptions::ConfigTable &Config, 1069 DiagnosticsEngine *Diags, 1070 unsigned &OptionField, StringRef Name, 1071 unsigned DefaultVal) { 1072 1073 OptionField = DefaultVal; 1074 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1075 .getAsInteger(0, OptionField); 1076 if (Diags && HasFailed) 1077 Diags->Report(diag::err_analyzer_config_invalid_input) 1078 << Name << "an unsigned"; 1079 } 1080 1081 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1082 DiagnosticsEngine *Diags) { 1083 // TODO: There's no need to store the entire configtable, it'd be plenty 1084 // enough tostore checker options. 1085 1086 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1087 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1088 1089 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1090 SHALLOW_VAL, DEEP_VAL) \ 1091 switch (AnOpts.getUserMode()) { \ 1092 case UMK_Shallow: \ 1093 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 1094 break; \ 1095 case UMK_Deep: \ 1096 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 1097 break; \ 1098 } \ 1099 1100 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1101 #undef ANALYZER_OPTION 1102 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 1103 1104 // At this point, AnalyzerOptions is configured. Let's validate some options. 1105 1106 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1107 // The current approach only validates the registered checkers which does not 1108 // contain the runtime enabled checkers and optimally we would validate both. 1109 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1110 std::vector<StringRef> Checkers = 1111 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1112 std::vector<StringRef> Packages = 1113 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1114 1115 SmallVector<StringRef, 16> CheckersAndPackages; 1116 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1117 1118 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1119 if (Diags) { 1120 bool IsChecker = CheckerOrPackage.contains('.'); 1121 bool IsValidName = 1122 IsChecker 1123 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end() 1124 : llvm::find(Packages, CheckerOrPackage) != Packages.end(); 1125 1126 if (!IsValidName) 1127 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1128 << CheckerOrPackage; 1129 } 1130 1131 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1132 } 1133 } 1134 1135 if (!Diags) 1136 return; 1137 1138 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1139 Diags->Report(diag::err_analyzer_config_invalid_input) 1140 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1141 1142 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1143 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1144 << "a filename"; 1145 1146 if (!AnOpts.ModelPath.empty() && 1147 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1148 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1149 << "a filename"; 1150 } 1151 1152 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1153 static void 1154 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1155 CompilerInvocation::StringAllocator SA, 1156 OptSpecifier OptEQ, StringRef Name, 1157 const CodeGenOptions::OptRemark &Remark) { 1158 if (Remark.hasValidPattern()) { 1159 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1160 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1161 GenerateArg(Args, OPT_R_Joined, Name, SA); 1162 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1163 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1164 } 1165 } 1166 1167 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1168 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1169 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1170 static CodeGenOptions::OptRemark 1171 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1172 OptSpecifier OptEQ, StringRef Name) { 1173 CodeGenOptions::OptRemark Result; 1174 1175 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A) { 1176 Result.Pattern = A->getValue(); 1177 1178 std::string RegexError; 1179 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1180 if (!Result.Regex->isValid(RegexError)) { 1181 Diags.Report(diag::err_drv_optimization_remark_pattern) 1182 << RegexError << A->getAsString(Args); 1183 return false; 1184 } 1185 1186 return true; 1187 }; 1188 1189 for (Arg *A : Args) { 1190 if (A->getOption().matches(OPT_R_Joined)) { 1191 StringRef Value = A->getValue(); 1192 1193 if (Value == Name) 1194 Result.Kind = CodeGenOptions::RK_Enabled; 1195 else if (Value == "everything") 1196 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1197 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1198 Result.Kind = CodeGenOptions::RK_Disabled; 1199 else if (Value == "no-everything") 1200 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1201 } else if (A->getOption().matches(OptEQ)) { 1202 Result.Kind = CodeGenOptions::RK_WithPattern; 1203 if (!InitializeResultPattern(A)) 1204 return CodeGenOptions::OptRemark(); 1205 } 1206 } 1207 1208 if (Result.Kind == CodeGenOptions::RK_Disabled || 1209 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1210 Result.Pattern = ""; 1211 Result.Regex = nullptr; 1212 } 1213 1214 return Result; 1215 } 1216 1217 static bool parseDiagnosticLevelMask(StringRef FlagName, 1218 const std::vector<std::string> &Levels, 1219 DiagnosticsEngine &Diags, 1220 DiagnosticLevelMask &M) { 1221 bool Success = true; 1222 for (const auto &Level : Levels) { 1223 DiagnosticLevelMask const PM = 1224 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1225 .Case("note", DiagnosticLevelMask::Note) 1226 .Case("remark", DiagnosticLevelMask::Remark) 1227 .Case("warning", DiagnosticLevelMask::Warning) 1228 .Case("error", DiagnosticLevelMask::Error) 1229 .Default(DiagnosticLevelMask::None); 1230 if (PM == DiagnosticLevelMask::None) { 1231 Success = false; 1232 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1233 } 1234 M = M | PM; 1235 } 1236 return Success; 1237 } 1238 1239 static void parseSanitizerKinds(StringRef FlagName, 1240 const std::vector<std::string> &Sanitizers, 1241 DiagnosticsEngine &Diags, SanitizerSet &S) { 1242 for (const auto &Sanitizer : Sanitizers) { 1243 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1244 if (K == SanitizerMask()) 1245 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1246 else 1247 S.set(K, true); 1248 } 1249 } 1250 1251 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1252 SmallVector<StringRef, 4> Values; 1253 serializeSanitizerSet(S, Values); 1254 return Values; 1255 } 1256 1257 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1258 ArgList &Args, DiagnosticsEngine &D, 1259 XRayInstrSet &S) { 1260 llvm::SmallVector<StringRef, 2> BundleParts; 1261 llvm::SplitString(Bundle, BundleParts, ","); 1262 for (const auto &B : BundleParts) { 1263 auto Mask = parseXRayInstrValue(B); 1264 if (Mask == XRayInstrKind::None) 1265 if (B != "none") 1266 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1267 else 1268 S.Mask = Mask; 1269 else if (Mask == XRayInstrKind::All) 1270 S.Mask = Mask; 1271 else 1272 S.set(Mask, true); 1273 } 1274 } 1275 1276 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1277 llvm::SmallVector<StringRef, 2> BundleParts; 1278 serializeXRayInstrValue(S, BundleParts); 1279 std::string Buffer; 1280 llvm::raw_string_ostream OS(Buffer); 1281 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1282 return OS.str(); 1283 } 1284 1285 // Set the profile kind using fprofile-instrument-use-path. 1286 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1287 const Twine &ProfileName) { 1288 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1289 // In error, return silently and let Clang PGOUse report the error message. 1290 if (auto E = ReaderOrErr.takeError()) { 1291 llvm::consumeError(std::move(E)); 1292 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1293 return; 1294 } 1295 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1296 std::move(ReaderOrErr.get()); 1297 if (PGOReader->isIRLevelProfile()) { 1298 if (PGOReader->hasCSIRLevelProfile()) 1299 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1300 else 1301 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1302 } else 1303 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1304 } 1305 1306 void CompilerInvocation::GenerateCodeGenArgs( 1307 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1308 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1309 const LangOptions *LangOpts) { 1310 const CodeGenOptions &CodeGenOpts = Opts; 1311 1312 if (Opts.OptimizationLevel == 0) 1313 GenerateArg(Args, OPT_O0, SA); 1314 else 1315 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1316 1317 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1318 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1319 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1320 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1321 MERGER, EXTRACTOR, TABLE_INDEX) \ 1322 GENERATE_OPTION_WITH_MARSHALLING( \ 1323 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1324 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1325 #include "clang/Driver/Options.inc" 1326 #undef CODEGEN_OPTION_WITH_MARSHALLING 1327 1328 if (Opts.OptimizationLevel > 0) { 1329 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1330 GenerateArg(Args, OPT_finline_functions, SA); 1331 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1332 GenerateArg(Args, OPT_finline_hint_functions, SA); 1333 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1334 GenerateArg(Args, OPT_fno_inline, SA); 1335 } 1336 1337 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1338 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1339 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1340 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1341 1342 Optional<StringRef> DebugInfoVal; 1343 switch (Opts.DebugInfo) { 1344 case codegenoptions::DebugLineTablesOnly: 1345 DebugInfoVal = "line-tables-only"; 1346 break; 1347 case codegenoptions::DebugDirectivesOnly: 1348 DebugInfoVal = "line-directives-only"; 1349 break; 1350 case codegenoptions::DebugInfoConstructor: 1351 DebugInfoVal = "constructor"; 1352 break; 1353 case codegenoptions::LimitedDebugInfo: 1354 DebugInfoVal = "limited"; 1355 break; 1356 case codegenoptions::FullDebugInfo: 1357 DebugInfoVal = "standalone"; 1358 break; 1359 case codegenoptions::UnusedTypeInfo: 1360 DebugInfoVal = "unused-types"; 1361 break; 1362 case codegenoptions::NoDebugInfo: // default value 1363 DebugInfoVal = None; 1364 break; 1365 case codegenoptions::LocTrackingOnly: // implied value 1366 DebugInfoVal = None; 1367 break; 1368 } 1369 if (DebugInfoVal) 1370 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1371 1372 for (const auto &Prefix : Opts.DebugPrefixMap) 1373 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1374 Prefix.first + "=" + Prefix.second, SA); 1375 1376 for (const auto &Prefix : Opts.CoveragePrefixMap) 1377 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1378 Prefix.first + "=" + Prefix.second, SA); 1379 1380 if (Opts.NewStructPathTBAA) 1381 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1382 1383 if (Opts.OptimizeSize == 1) 1384 GenerateArg(Args, OPT_O, "s", SA); 1385 else if (Opts.OptimizeSize == 2) 1386 GenerateArg(Args, OPT_O, "z", SA); 1387 1388 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1389 // -ffreestanding. We'll consider that when generating them. 1390 1391 // NoBuiltinFuncs are generated by LangOptions. 1392 1393 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1394 GenerateArg(Args, OPT_funroll_loops, SA); 1395 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1396 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1397 1398 if (!Opts.BinutilsVersion.empty()) 1399 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1400 1401 if (Opts.DebugNameTable == 1402 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1403 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1404 else if (Opts.DebugNameTable == 1405 static_cast<unsigned>( 1406 llvm::DICompileUnit::DebugNameTableKind::Default)) 1407 GenerateArg(Args, OPT_gpubnames, SA); 1408 1409 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1410 // it or PGOUseInstrumentor. 1411 1412 if (Opts.TimePasses) { 1413 if (Opts.TimePassesPerRun) 1414 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1415 else 1416 GenerateArg(Args, OPT_ftime_report, SA); 1417 } 1418 1419 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1420 GenerateArg(Args, OPT_flto, SA); 1421 1422 if (Opts.PrepareForThinLTO) 1423 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1424 1425 if (!Opts.ThinLTOIndexFile.empty()) 1426 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1427 1428 if (Opts.SaveTempsFilePrefix == OutputFile) 1429 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1430 1431 StringRef MemProfileBasename("memprof.profraw"); 1432 if (!Opts.MemoryProfileOutput.empty()) { 1433 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1434 GenerateArg(Args, OPT_fmemory_profile, SA); 1435 } else { 1436 size_t ArgLength = 1437 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1438 GenerateArg(Args, OPT_fmemory_profile_EQ, 1439 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1440 } 1441 } 1442 1443 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1444 GenerateArg(Args, OPT_coverage_version_EQ, 1445 StringRef(Opts.CoverageVersion, 4), SA); 1446 1447 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1448 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1449 // won't be generated.) 1450 1451 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1452 std::string InstrBundle = 1453 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1454 if (!InstrBundle.empty()) 1455 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1456 } 1457 1458 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1459 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1460 else if (Opts.CFProtectionReturn) 1461 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1462 else if (Opts.CFProtectionBranch) 1463 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1464 1465 for (const auto &F : Opts.LinkBitcodeFiles) { 1466 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1467 F.PropagateAttrs && F.Internalize; 1468 GenerateArg(Args, 1469 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1470 F.Filename, SA); 1471 } 1472 1473 if (Opts.ReturnProtector) { 1474 GenerateArg(Args, OPT_ret_protector, SA); 1475 } 1476 1477 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1478 // That would make it easy to generate the option only **once** if it was 1479 // explicitly set to non-default value. 1480 if (Opts.ExplicitEmulatedTLS) { 1481 GenerateArg( 1482 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1483 } 1484 1485 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1486 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1487 1488 if (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE()) 1489 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1490 SA); 1491 1492 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1493 OptSpecifier Opt = 1494 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1495 GenerateArg(Args, Opt, SA); 1496 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1497 OptSpecifier Opt = 1498 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1499 GenerateArg(Args, Opt, SA); 1500 } 1501 1502 if (Opts.EnableAIXExtendedAltivecABI) 1503 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1504 1505 if (!Opts.OptRecordPasses.empty()) 1506 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1507 1508 if (!Opts.OptRecordFormat.empty()) 1509 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1510 1511 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1512 Opts.OptimizationRemark); 1513 1514 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1515 Opts.OptimizationRemarkMissed); 1516 1517 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1518 Opts.OptimizationRemarkAnalysis); 1519 1520 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1521 Opts.DiagnosticsHotnessThreshold 1522 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1523 : "auto", 1524 SA); 1525 1526 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1527 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1528 1529 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1530 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1531 1532 if (!Opts.EmitVersionIdentMetadata) 1533 GenerateArg(Args, OPT_Qn, SA); 1534 1535 switch (Opts.FiniteLoops) { 1536 case CodeGenOptions::FiniteLoopsKind::Language: 1537 break; 1538 case CodeGenOptions::FiniteLoopsKind::Always: 1539 GenerateArg(Args, OPT_ffinite_loops, SA); 1540 break; 1541 case CodeGenOptions::FiniteLoopsKind::Never: 1542 GenerateArg(Args, OPT_fno_finite_loops, SA); 1543 break; 1544 } 1545 } 1546 1547 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1548 InputKind IK, 1549 DiagnosticsEngine &Diags, 1550 const llvm::Triple &T, 1551 const std::string &OutputFile, 1552 const LangOptions &LangOptsRef) { 1553 unsigned NumErrorsBefore = Diags.getNumErrors(); 1554 1555 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1556 // TODO: This could be done in Driver 1557 unsigned MaxOptLevel = 3; 1558 if (OptimizationLevel > MaxOptLevel) { 1559 // If the optimization level is not supported, fall back on the default 1560 // optimization 1561 Diags.Report(diag::warn_drv_optimization_value) 1562 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1563 OptimizationLevel = MaxOptLevel; 1564 } 1565 Opts.OptimizationLevel = OptimizationLevel; 1566 1567 // The key paths of codegen options defined in Options.td start with 1568 // "CodeGenOpts.". Let's provide the expected variable name and type. 1569 CodeGenOptions &CodeGenOpts = Opts; 1570 // Some codegen options depend on language options. Let's provide the expected 1571 // variable name and type. 1572 const LangOptions *LangOpts = &LangOptsRef; 1573 1574 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1575 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1576 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1577 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1578 MERGER, EXTRACTOR, TABLE_INDEX) \ 1579 PARSE_OPTION_WITH_MARSHALLING( \ 1580 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1581 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1582 #include "clang/Driver/Options.inc" 1583 #undef CODEGEN_OPTION_WITH_MARSHALLING 1584 1585 // At O0 we want to fully disable inlining outside of cases marked with 1586 // 'alwaysinline' that are required for correctness. 1587 Opts.setInlining((Opts.OptimizationLevel == 0) 1588 ? CodeGenOptions::OnlyAlwaysInlining 1589 : CodeGenOptions::NormalInlining); 1590 // Explicit inlining flags can disable some or all inlining even at 1591 // optimization levels above zero. 1592 if (Arg *InlineArg = Args.getLastArg( 1593 options::OPT_finline_functions, options::OPT_finline_hint_functions, 1594 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 1595 if (Opts.OptimizationLevel > 0) { 1596 const Option &InlineOpt = InlineArg->getOption(); 1597 if (InlineOpt.matches(options::OPT_finline_functions)) 1598 Opts.setInlining(CodeGenOptions::NormalInlining); 1599 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 1600 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1601 else 1602 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1603 } 1604 } 1605 1606 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1607 // -fdirect-access-external-data. 1608 Opts.DirectAccessExternalData = 1609 Args.hasArg(OPT_fdirect_access_external_data) || 1610 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1611 LangOpts->PICLevel == 0); 1612 1613 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1614 unsigned Val = 1615 llvm::StringSwitch<unsigned>(A->getValue()) 1616 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1617 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1618 .Case("constructor", codegenoptions::DebugInfoConstructor) 1619 .Case("limited", codegenoptions::LimitedDebugInfo) 1620 .Case("standalone", codegenoptions::FullDebugInfo) 1621 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1622 .Default(~0U); 1623 if (Val == ~0U) 1624 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1625 << A->getValue(); 1626 else 1627 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1628 } 1629 1630 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1631 // constructor homing, and vice versa for -fno-use-ctor-homing. 1632 if (const Arg *A = 1633 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1634 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1635 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1636 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1637 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1638 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1639 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1640 } 1641 1642 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1643 auto Split = StringRef(Arg).split('='); 1644 Opts.DebugPrefixMap.insert( 1645 {std::string(Split.first), std::string(Split.second)}); 1646 } 1647 1648 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1649 auto Split = StringRef(Arg).split('='); 1650 Opts.CoveragePrefixMap.insert( 1651 {std::string(Split.first), std::string(Split.second)}); 1652 } 1653 1654 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1655 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1656 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1657 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1658 1659 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1660 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1661 Opts.EmitCallSiteInfo = true; 1662 1663 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1664 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1665 << Opts.DIBugsReportFilePath; 1666 Opts.DIBugsReportFilePath = ""; 1667 } 1668 1669 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1670 Args.hasArg(OPT_new_struct_path_tbaa); 1671 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1672 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1673 if (Opts.SimplifyLibCalls) 1674 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1675 Opts.UnrollLoops = 1676 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1677 (Opts.OptimizationLevel > 1)); 1678 Opts.BinutilsVersion = 1679 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1680 1681 Opts.DebugNameTable = static_cast<unsigned>( 1682 Args.hasArg(OPT_ggnu_pubnames) 1683 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1684 : Args.hasArg(OPT_gpubnames) 1685 ? llvm::DICompileUnit::DebugNameTableKind::Default 1686 : llvm::DICompileUnit::DebugNameTableKind::None); 1687 1688 if (!Opts.ProfileInstrumentUsePath.empty()) 1689 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1690 1691 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1692 Opts.TimePasses = true; 1693 1694 // -ftime-report= is only for new pass manager. 1695 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1696 if (Opts.LegacyPassManager) 1697 Diags.Report(diag::err_drv_argument_only_allowed_with) 1698 << A->getAsString(Args) << "-fno-legacy-pass-manager"; 1699 1700 StringRef Val = A->getValue(); 1701 if (Val == "per-pass") 1702 Opts.TimePassesPerRun = false; 1703 else if (Val == "per-pass-run") 1704 Opts.TimePassesPerRun = true; 1705 else 1706 Diags.Report(diag::err_drv_invalid_value) 1707 << A->getAsString(Args) << A->getValue(); 1708 } 1709 } 1710 1711 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 1712 Opts.PrepareForThinLTO = false; 1713 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1714 StringRef S = A->getValue(); 1715 if (S == "thin") 1716 Opts.PrepareForThinLTO = true; 1717 else if (S != "full") 1718 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1719 } 1720 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1721 if (IK.getLanguage() != Language::LLVM_IR) 1722 Diags.Report(diag::err_drv_argument_only_allowed_with) 1723 << A->getAsString(Args) << "-x ir"; 1724 Opts.ThinLTOIndexFile = 1725 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1726 } 1727 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1728 Opts.SaveTempsFilePrefix = 1729 llvm::StringSwitch<std::string>(A->getValue()) 1730 .Case("obj", OutputFile) 1731 .Default(llvm::sys::path::filename(OutputFile).str()); 1732 1733 // The memory profile runtime appends the pid to make this name more unique. 1734 const char *MemProfileBasename = "memprof.profraw"; 1735 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1736 SmallString<128> Path( 1737 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1738 llvm::sys::path::append(Path, MemProfileBasename); 1739 Opts.MemoryProfileOutput = std::string(Path); 1740 } else if (Args.hasArg(OPT_fmemory_profile)) 1741 Opts.MemoryProfileOutput = MemProfileBasename; 1742 1743 memcpy(Opts.CoverageVersion, "408*", 4); 1744 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1745 if (Args.hasArg(OPT_coverage_version_EQ)) { 1746 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1747 if (CoverageVersion.size() != 4) { 1748 Diags.Report(diag::err_drv_invalid_value) 1749 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1750 << CoverageVersion; 1751 } else { 1752 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1753 } 1754 } 1755 } 1756 // FIXME: For backend options that are not yet recorded as function 1757 // attributes in the IR, keep track of them so we can embed them in a 1758 // separate data section and use them when building the bitcode. 1759 for (const auto &A : Args) { 1760 // Do not encode output and input. 1761 if (A->getOption().getID() == options::OPT_o || 1762 A->getOption().getID() == options::OPT_INPUT || 1763 A->getOption().getID() == options::OPT_x || 1764 A->getOption().getID() == options::OPT_fembed_bitcode || 1765 A->getOption().matches(options::OPT_W_Group)) 1766 continue; 1767 ArgStringList ASL; 1768 A->render(Args, ASL); 1769 for (const auto &arg : ASL) { 1770 StringRef ArgStr(arg); 1771 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1772 // using \00 to separate each commandline options. 1773 Opts.CmdArgs.push_back('\0'); 1774 } 1775 } 1776 1777 auto XRayInstrBundles = 1778 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1779 if (XRayInstrBundles.empty()) 1780 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1781 else 1782 for (const auto &A : XRayInstrBundles) 1783 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1784 Diags, Opts.XRayInstrumentationBundle); 1785 1786 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1787 StringRef Name = A->getValue(); 1788 if (Name == "full") { 1789 Opts.CFProtectionReturn = 1; 1790 Opts.CFProtectionBranch = 1; 1791 } else if (Name == "return") 1792 Opts.CFProtectionReturn = 1; 1793 else if (Name == "branch") 1794 Opts.CFProtectionBranch = 1; 1795 else if (Name != "none") 1796 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1797 } 1798 1799 for (auto *A : 1800 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1801 CodeGenOptions::BitcodeFileToLink F; 1802 F.Filename = A->getValue(); 1803 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1804 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1805 // When linking CUDA bitcode, propagate function attributes so that 1806 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1807 F.PropagateAttrs = true; 1808 F.Internalize = true; 1809 } 1810 Opts.LinkBitcodeFiles.push_back(F); 1811 } 1812 1813 Opts.ReturnProtector = Args.hasArg(OPT_ret_protector); 1814 1815 if (Args.getLastArg(OPT_femulated_tls) || 1816 Args.getLastArg(OPT_fno_emulated_tls)) { 1817 Opts.ExplicitEmulatedTLS = true; 1818 } 1819 1820 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1821 if (T.isOSAIX()) { 1822 StringRef Name = A->getValue(); 1823 if (Name != "global-dynamic") 1824 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1825 } 1826 } 1827 1828 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1829 StringRef Val = A->getValue(); 1830 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1831 if (!Opts.FPDenormalMode.isValid()) 1832 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1833 } 1834 1835 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1836 StringRef Val = A->getValue(); 1837 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1838 if (!Opts.FP32DenormalMode.isValid()) 1839 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1840 } 1841 1842 // X86_32 has -fppc-struct-return and -freg-struct-return. 1843 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1844 if (Arg *A = 1845 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1846 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1847 // TODO: We might want to consider enabling these options on AIX in the 1848 // future. 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_fpcc_struct_return) || 1855 O.matches(OPT_maix_struct_return)) { 1856 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1857 } else { 1858 assert(O.matches(OPT_freg_struct_return) || 1859 O.matches(OPT_msvr4_struct_return)); 1860 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1861 } 1862 } 1863 1864 if (Arg *A = 1865 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1866 if (!T.isOSAIX()) 1867 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1868 << A->getSpelling() << T.str(); 1869 1870 const Option &O = A->getOption(); 1871 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1872 } 1873 1874 bool NeedLocTracking = false; 1875 1876 if (!Opts.OptRecordFile.empty()) 1877 NeedLocTracking = true; 1878 1879 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1880 Opts.OptRecordPasses = A->getValue(); 1881 NeedLocTracking = true; 1882 } 1883 1884 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1885 Opts.OptRecordFormat = A->getValue(); 1886 NeedLocTracking = true; 1887 } 1888 1889 Opts.OptimizationRemark = 1890 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1891 1892 Opts.OptimizationRemarkMissed = 1893 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1894 1895 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1896 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1897 1898 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1899 Opts.OptimizationRemarkMissed.hasValidPattern() || 1900 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1901 1902 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1903 bool UsingProfile = UsingSampleProfile || 1904 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1905 1906 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1907 // An IR file will contain PGO as metadata 1908 IK.getLanguage() != Language::LLVM_IR) 1909 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1910 << "-fdiagnostics-show-hotness"; 1911 1912 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1913 if (auto *arg = 1914 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1915 auto ResultOrErr = 1916 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1917 1918 if (!ResultOrErr) { 1919 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1920 << "-fdiagnostics-hotness-threshold="; 1921 } else { 1922 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1923 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1924 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1925 !UsingProfile) 1926 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1927 << "-fdiagnostics-hotness-threshold="; 1928 } 1929 } 1930 1931 // If the user requested to use a sample profile for PGO, then the 1932 // backend will need to track source location information so the profile 1933 // can be incorporated into the IR. 1934 if (UsingSampleProfile) 1935 NeedLocTracking = true; 1936 1937 if (!Opts.StackUsageOutput.empty()) 1938 NeedLocTracking = true; 1939 1940 // If the user requested a flag that requires source locations available in 1941 // the backend, make sure that the backend tracks source location information. 1942 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1943 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1944 1945 // Parse -fsanitize-recover= arguments. 1946 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1947 parseSanitizerKinds("-fsanitize-recover=", 1948 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1949 Opts.SanitizeRecover); 1950 parseSanitizerKinds("-fsanitize-trap=", 1951 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1952 Opts.SanitizeTrap); 1953 1954 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1955 1956 if (Args.hasArg(options::OPT_ffinite_loops)) 1957 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 1958 else if (Args.hasArg(options::OPT_fno_finite_loops)) 1959 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 1960 1961 Opts.EmitIEEENaNCompliantInsts = 1962 Args.hasFlag(options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee); 1963 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 1964 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 1965 1966 return Diags.getNumErrors() == NumErrorsBefore; 1967 } 1968 1969 static void 1970 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 1971 SmallVectorImpl<const char *> &Args, 1972 CompilerInvocation::StringAllocator SA) { 1973 const DependencyOutputOptions &DependencyOutputOpts = Opts; 1974 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 1975 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1976 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1977 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1978 MERGER, EXTRACTOR, TABLE_INDEX) \ 1979 GENERATE_OPTION_WITH_MARSHALLING( \ 1980 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1981 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1982 #include "clang/Driver/Options.inc" 1983 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 1984 1985 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 1986 GenerateArg(Args, OPT_show_includes, SA); 1987 1988 for (const auto &Dep : Opts.ExtraDeps) { 1989 switch (Dep.second) { 1990 case EDK_SanitizeIgnorelist: 1991 // Sanitizer ignorelist arguments are generated from LanguageOptions. 1992 continue; 1993 case EDK_ModuleFile: 1994 // Module file arguments are generated from FrontendOptions and 1995 // HeaderSearchOptions. 1996 continue; 1997 case EDK_ProfileList: 1998 // Profile list arguments are generated from LanguageOptions via the 1999 // marshalling infrastructure. 2000 continue; 2001 case EDK_DepFileEntry: 2002 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2003 break; 2004 } 2005 } 2006 } 2007 2008 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2009 ArgList &Args, DiagnosticsEngine &Diags, 2010 frontend::ActionKind Action, 2011 bool ShowLineMarkers) { 2012 unsigned NumErrorsBefore = Diags.getNumErrors(); 2013 2014 DependencyOutputOptions &DependencyOutputOpts = Opts; 2015 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2016 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2017 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2018 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2019 MERGER, EXTRACTOR, TABLE_INDEX) \ 2020 PARSE_OPTION_WITH_MARSHALLING( \ 2021 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2022 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2023 #include "clang/Driver/Options.inc" 2024 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2025 2026 if (Args.hasArg(OPT_show_includes)) { 2027 // Writing both /showIncludes and preprocessor output to stdout 2028 // would produce interleaved output, so use stderr for /showIncludes. 2029 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2030 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2031 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2032 else 2033 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2034 } else { 2035 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2036 } 2037 2038 // Add sanitizer ignorelists as extra dependencies. 2039 // They won't be discovered by the regular preprocessor, so 2040 // we let make / ninja to know about this implicit dependency. 2041 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2042 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2043 StringRef Val = A->getValue(); 2044 if (Val.find('=') == StringRef::npos) 2045 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2046 } 2047 if (Opts.IncludeSystemHeaders) { 2048 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2049 StringRef Val = A->getValue(); 2050 if (Val.find('=') == StringRef::npos) 2051 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2052 } 2053 } 2054 } 2055 2056 // -fprofile-list= dependencies. 2057 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2058 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2059 2060 // Propagate the extra dependencies. 2061 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2062 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2063 2064 // Only the -fmodule-file=<file> form. 2065 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2066 StringRef Val = A->getValue(); 2067 if (Val.find('=') == StringRef::npos) 2068 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2069 } 2070 2071 return Diags.getNumErrors() == NumErrorsBefore; 2072 } 2073 2074 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2075 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2076 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2077 // Support both clang's -f[no-]color-diagnostics and gcc's 2078 // -f[no-]diagnostics-colors[=never|always|auto]. 2079 enum { 2080 Colors_On, 2081 Colors_Off, 2082 Colors_Auto 2083 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2084 for (auto *A : Args) { 2085 const Option &O = A->getOption(); 2086 if (O.matches(options::OPT_fcolor_diagnostics) || 2087 O.matches(options::OPT_fdiagnostics_color)) { 2088 ShowColors = Colors_On; 2089 } else if (O.matches(options::OPT_fno_color_diagnostics) || 2090 O.matches(options::OPT_fno_diagnostics_color)) { 2091 ShowColors = Colors_Off; 2092 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2093 StringRef Value(A->getValue()); 2094 if (Value == "always") 2095 ShowColors = Colors_On; 2096 else if (Value == "never") 2097 ShowColors = Colors_Off; 2098 else if (Value == "auto") 2099 ShowColors = Colors_Auto; 2100 } 2101 } 2102 return ShowColors == Colors_On || 2103 (ShowColors == Colors_Auto && 2104 llvm::sys::Process::StandardErrHasColors()); 2105 } 2106 2107 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2108 DiagnosticsEngine &Diags) { 2109 bool Success = true; 2110 for (const auto &Prefix : VerifyPrefixes) { 2111 // Every prefix must start with a letter and contain only alphanumeric 2112 // characters, hyphens, and underscores. 2113 auto BadChar = llvm::find_if(Prefix, [](char C) { 2114 return !isAlphanumeric(C) && C != '-' && C != '_'; 2115 }); 2116 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2117 Success = false; 2118 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2119 Diags.Report(diag::note_drv_verify_prefix_spelling); 2120 } 2121 } 2122 return Success; 2123 } 2124 2125 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2126 SmallVectorImpl<const char *> &Args, 2127 CompilerInvocation::StringAllocator SA) { 2128 const FileSystemOptions &FileSystemOpts = Opts; 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 GENERATE_OPTION_WITH_MARSHALLING( \ 2136 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2137 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2138 #include "clang/Driver/Options.inc" 2139 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2140 } 2141 2142 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2143 DiagnosticsEngine &Diags) { 2144 unsigned NumErrorsBefore = Diags.getNumErrors(); 2145 2146 FileSystemOptions &FileSystemOpts = Opts; 2147 2148 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2149 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2150 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2151 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2152 MERGER, EXTRACTOR, TABLE_INDEX) \ 2153 PARSE_OPTION_WITH_MARSHALLING( \ 2154 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2155 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2156 #include "clang/Driver/Options.inc" 2157 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2158 2159 return Diags.getNumErrors() == NumErrorsBefore; 2160 } 2161 2162 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2163 SmallVectorImpl<const char *> &Args, 2164 CompilerInvocation::StringAllocator SA) { 2165 const MigratorOptions &MigratorOpts = Opts; 2166 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2167 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2168 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2169 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2170 MERGER, EXTRACTOR, TABLE_INDEX) \ 2171 GENERATE_OPTION_WITH_MARSHALLING( \ 2172 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2173 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2174 #include "clang/Driver/Options.inc" 2175 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2176 } 2177 2178 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2179 DiagnosticsEngine &Diags) { 2180 unsigned NumErrorsBefore = Diags.getNumErrors(); 2181 2182 MigratorOptions &MigratorOpts = Opts; 2183 2184 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2185 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2186 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2187 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2188 MERGER, EXTRACTOR, TABLE_INDEX) \ 2189 PARSE_OPTION_WITH_MARSHALLING( \ 2190 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2191 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2192 #include "clang/Driver/Options.inc" 2193 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2194 2195 return Diags.getNumErrors() == NumErrorsBefore; 2196 } 2197 2198 void CompilerInvocation::GenerateDiagnosticArgs( 2199 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2200 StringAllocator SA, bool DefaultDiagColor) { 2201 const DiagnosticOptions *DiagnosticOpts = &Opts; 2202 #define DIAG_OPTION_WITH_MARSHALLING( \ 2203 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2204 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2205 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2206 MERGER, EXTRACTOR, TABLE_INDEX) \ 2207 GENERATE_OPTION_WITH_MARSHALLING( \ 2208 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2209 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2210 #include "clang/Driver/Options.inc" 2211 #undef DIAG_OPTION_WITH_MARSHALLING 2212 2213 if (!Opts.DiagnosticSerializationFile.empty()) 2214 GenerateArg(Args, OPT_diagnostic_serialized_file, 2215 Opts.DiagnosticSerializationFile, SA); 2216 2217 if (Opts.ShowColors) 2218 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2219 2220 if (Opts.VerifyDiagnostics && 2221 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2222 GenerateArg(Args, OPT_verify, SA); 2223 2224 for (const auto &Prefix : Opts.VerifyPrefixes) 2225 if (Prefix != "expected") 2226 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2227 2228 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2229 if (VIU == DiagnosticLevelMask::None) { 2230 // This is the default, don't generate anything. 2231 } else if (VIU == DiagnosticLevelMask::All) { 2232 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2233 } else { 2234 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2235 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2236 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2237 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2238 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2239 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2240 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2241 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2242 } 2243 2244 for (const auto &Warning : Opts.Warnings) { 2245 // This option is automatically generated from UndefPrefixes. 2246 if (Warning == "undef-prefix") 2247 continue; 2248 Args.push_back(SA(StringRef("-W") + Warning)); 2249 } 2250 2251 for (const auto &Remark : Opts.Remarks) { 2252 // These arguments are generated from OptimizationRemark fields of 2253 // CodeGenOptions. 2254 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2255 "pass-analysis", "no-pass-analysis", 2256 "pass-missed", "no-pass-missed"}; 2257 if (llvm::is_contained(IgnoredRemarks, Remark)) 2258 continue; 2259 2260 Args.push_back(SA(StringRef("-R") + Remark)); 2261 } 2262 } 2263 2264 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2265 DiagnosticsEngine *Diags, 2266 bool DefaultDiagColor) { 2267 Optional<DiagnosticsEngine> IgnoringDiags; 2268 if (!Diags) { 2269 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2270 new IgnoringDiagConsumer()); 2271 Diags = &*IgnoringDiags; 2272 } 2273 2274 unsigned NumErrorsBefore = Diags->getNumErrors(); 2275 2276 // The key paths of diagnostic options defined in Options.td start with 2277 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2278 DiagnosticOptions *DiagnosticOpts = &Opts; 2279 2280 #define DIAG_OPTION_WITH_MARSHALLING( \ 2281 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2282 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2283 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2284 MERGER, EXTRACTOR, TABLE_INDEX) \ 2285 PARSE_OPTION_WITH_MARSHALLING( \ 2286 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2287 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2288 #include "clang/Driver/Options.inc" 2289 #undef DIAG_OPTION_WITH_MARSHALLING 2290 2291 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2292 2293 if (Arg *A = 2294 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2295 Opts.DiagnosticSerializationFile = A->getValue(); 2296 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2297 2298 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2299 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2300 if (Args.hasArg(OPT_verify)) 2301 Opts.VerifyPrefixes.push_back("expected"); 2302 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2303 // then sort it to prepare for fast lookup using std::binary_search. 2304 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2305 Opts.VerifyDiagnostics = false; 2306 else 2307 llvm::sort(Opts.VerifyPrefixes); 2308 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2309 parseDiagnosticLevelMask( 2310 "-verify-ignore-unexpected=", 2311 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2312 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2313 DiagMask = DiagnosticLevelMask::All; 2314 Opts.setVerifyIgnoreUnexpected(DiagMask); 2315 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2316 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2317 Diags->Report(diag::warn_ignoring_ftabstop_value) 2318 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2319 } 2320 2321 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2322 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2323 2324 return Diags->getNumErrors() == NumErrorsBefore; 2325 } 2326 2327 /// Parse the argument to the -ftest-module-file-extension 2328 /// command-line argument. 2329 /// 2330 /// \returns true on error, false on success. 2331 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2332 std::string &BlockName, 2333 unsigned &MajorVersion, 2334 unsigned &MinorVersion, 2335 bool &Hashed, 2336 std::string &UserInfo) { 2337 SmallVector<StringRef, 5> Args; 2338 Arg.split(Args, ':', 5); 2339 if (Args.size() < 5) 2340 return true; 2341 2342 BlockName = std::string(Args[0]); 2343 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2344 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2345 if (Args[3].getAsInteger(2, Hashed)) return true; 2346 if (Args.size() > 4) 2347 UserInfo = std::string(Args[4]); 2348 return false; 2349 } 2350 2351 /// Return a table that associates command line option specifiers with the 2352 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2353 /// intentionally missing, as this case is handled separately from other 2354 /// frontend options. 2355 static const auto &getFrontendActionTable() { 2356 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2357 {frontend::ASTDeclList, OPT_ast_list}, 2358 2359 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2360 {frontend::ASTDump, OPT_ast_dump_all}, 2361 {frontend::ASTDump, OPT_ast_dump_EQ}, 2362 {frontend::ASTDump, OPT_ast_dump}, 2363 {frontend::ASTDump, OPT_ast_dump_lookups}, 2364 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2365 2366 {frontend::ASTPrint, OPT_ast_print}, 2367 {frontend::ASTView, OPT_ast_view}, 2368 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2369 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2370 {frontend::DumpTokens, OPT_dump_tokens}, 2371 {frontend::EmitAssembly, OPT_S}, 2372 {frontend::EmitBC, OPT_emit_llvm_bc}, 2373 {frontend::EmitHTML, OPT_emit_html}, 2374 {frontend::EmitLLVM, OPT_emit_llvm}, 2375 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2376 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2377 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2378 {frontend::EmitObj, OPT_emit_obj}, 2379 2380 {frontend::FixIt, OPT_fixit_EQ}, 2381 {frontend::FixIt, OPT_fixit}, 2382 2383 {frontend::GenerateModule, OPT_emit_module}, 2384 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2385 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2386 {frontend::GeneratePCH, OPT_emit_pch}, 2387 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2388 {frontend::InitOnly, OPT_init_only}, 2389 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2390 {frontend::ModuleFileInfo, OPT_module_file_info}, 2391 {frontend::VerifyPCH, OPT_verify_pch}, 2392 {frontend::PrintPreamble, OPT_print_preamble}, 2393 {frontend::PrintPreprocessedInput, OPT_E}, 2394 {frontend::TemplightDump, OPT_templight_dump}, 2395 {frontend::RewriteMacros, OPT_rewrite_macros}, 2396 {frontend::RewriteObjC, OPT_rewrite_objc}, 2397 {frontend::RewriteTest, OPT_rewrite_test}, 2398 {frontend::RunAnalysis, OPT_analyze}, 2399 {frontend::MigrateSource, OPT_migrate}, 2400 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2401 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2402 OPT_print_dependency_directives_minimized_source}, 2403 }; 2404 2405 return Table; 2406 } 2407 2408 /// Maps command line option to frontend action. 2409 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2410 for (const auto &ActionOpt : getFrontendActionTable()) 2411 if (ActionOpt.second == Opt.getID()) 2412 return ActionOpt.first; 2413 2414 return None; 2415 } 2416 2417 /// Maps frontend action to command line option. 2418 static Optional<OptSpecifier> 2419 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2420 for (const auto &ActionOpt : getFrontendActionTable()) 2421 if (ActionOpt.first == ProgramAction) 2422 return OptSpecifier(ActionOpt.second); 2423 2424 return None; 2425 } 2426 2427 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2428 SmallVectorImpl<const char *> &Args, 2429 CompilerInvocation::StringAllocator SA, 2430 bool IsHeader) { 2431 const FrontendOptions &FrontendOpts = Opts; 2432 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2433 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2434 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2435 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2436 MERGER, EXTRACTOR, TABLE_INDEX) \ 2437 GENERATE_OPTION_WITH_MARSHALLING( \ 2438 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2439 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2440 #include "clang/Driver/Options.inc" 2441 #undef FRONTEND_OPTION_WITH_MARSHALLING 2442 2443 Optional<OptSpecifier> ProgramActionOpt = 2444 getProgramActionOpt(Opts.ProgramAction); 2445 2446 // Generating a simple flag covers most frontend actions. 2447 std::function<void()> GenerateProgramAction = [&]() { 2448 GenerateArg(Args, *ProgramActionOpt, SA); 2449 }; 2450 2451 if (!ProgramActionOpt) { 2452 // PluginAction is the only program action handled separately. 2453 assert(Opts.ProgramAction == frontend::PluginAction && 2454 "Frontend action without option."); 2455 GenerateProgramAction = [&]() { 2456 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2457 }; 2458 } 2459 2460 // FIXME: Simplify the complex 'AST dump' command line. 2461 if (Opts.ProgramAction == frontend::ASTDump) { 2462 GenerateProgramAction = [&]() { 2463 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2464 // marshalling infrastructure. 2465 2466 if (Opts.ASTDumpFormat != ADOF_Default) { 2467 StringRef Format; 2468 switch (Opts.ASTDumpFormat) { 2469 case ADOF_Default: 2470 llvm_unreachable("Default AST dump format."); 2471 case ADOF_JSON: 2472 Format = "json"; 2473 break; 2474 } 2475 2476 if (Opts.ASTDumpAll) 2477 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2478 if (Opts.ASTDumpDecls) 2479 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2480 } else { 2481 if (Opts.ASTDumpAll) 2482 GenerateArg(Args, OPT_ast_dump_all, SA); 2483 if (Opts.ASTDumpDecls) 2484 GenerateArg(Args, OPT_ast_dump, SA); 2485 } 2486 }; 2487 } 2488 2489 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2490 GenerateProgramAction = [&]() { 2491 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2492 }; 2493 } 2494 2495 GenerateProgramAction(); 2496 2497 for (const auto &PluginArgs : Opts.PluginArgs) { 2498 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2499 const char *Spelling = 2500 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2501 for (const auto &PluginArg : PluginArgs.second) 2502 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2503 } 2504 2505 for (const auto &Ext : Opts.ModuleFileExtensions) 2506 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2507 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2508 2509 if (!Opts.CodeCompletionAt.FileName.empty()) 2510 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2511 SA); 2512 2513 for (const auto &Plugin : Opts.Plugins) 2514 GenerateArg(Args, OPT_load, Plugin, SA); 2515 2516 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2517 2518 for (const auto &ModuleFile : Opts.ModuleFiles) 2519 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2520 2521 if (Opts.AuxTargetCPU.hasValue()) 2522 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2523 2524 if (Opts.AuxTargetFeatures.hasValue()) 2525 for (const auto &Feature : *Opts.AuxTargetFeatures) 2526 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2527 2528 { 2529 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2530 StringRef ModuleMap = 2531 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2532 StringRef Header = IsHeader ? "-header" : ""; 2533 2534 StringRef Lang; 2535 switch (Opts.DashX.getLanguage()) { 2536 case Language::C: 2537 Lang = "c"; 2538 break; 2539 case Language::OpenCL: 2540 Lang = "cl"; 2541 break; 2542 case Language::OpenCLCXX: 2543 Lang = "clcpp"; 2544 break; 2545 case Language::CUDA: 2546 Lang = "cuda"; 2547 break; 2548 case Language::HIP: 2549 Lang = "hip"; 2550 break; 2551 case Language::CXX: 2552 Lang = "c++"; 2553 break; 2554 case Language::ObjC: 2555 Lang = "objective-c"; 2556 break; 2557 case Language::ObjCXX: 2558 Lang = "objective-c++"; 2559 break; 2560 case Language::RenderScript: 2561 Lang = "renderscript"; 2562 break; 2563 case Language::Asm: 2564 Lang = "assembler-with-cpp"; 2565 break; 2566 case Language::Unknown: 2567 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2568 "Generating -x argument for unknown language (not precompiled)."); 2569 Lang = "ast"; 2570 break; 2571 case Language::LLVM_IR: 2572 Lang = "ir"; 2573 break; 2574 } 2575 2576 GenerateArg(Args, OPT_x, Lang + Header + ModuleMap + Preprocessed, SA); 2577 } 2578 2579 // OPT_INPUT has a unique class, generate it directly. 2580 for (const auto &Input : Opts.Inputs) 2581 Args.push_back(SA(Input.getFile())); 2582 } 2583 2584 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2585 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2586 unsigned NumErrorsBefore = Diags.getNumErrors(); 2587 2588 FrontendOptions &FrontendOpts = Opts; 2589 2590 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2591 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2592 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2593 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2594 MERGER, EXTRACTOR, TABLE_INDEX) \ 2595 PARSE_OPTION_WITH_MARSHALLING( \ 2596 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2597 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2598 #include "clang/Driver/Options.inc" 2599 #undef FRONTEND_OPTION_WITH_MARSHALLING 2600 2601 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2602 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2603 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2604 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2605 assert(ProgramAction && "Option specifier not in Action_Group."); 2606 2607 if (ProgramAction == frontend::ASTDump && 2608 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2609 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2610 .CaseLower("default", ADOF_Default) 2611 .CaseLower("json", ADOF_JSON) 2612 .Default(std::numeric_limits<unsigned>::max()); 2613 2614 if (Val != std::numeric_limits<unsigned>::max()) 2615 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2616 else { 2617 Diags.Report(diag::err_drv_invalid_value) 2618 << A->getAsString(Args) << A->getValue(); 2619 Opts.ASTDumpFormat = ADOF_Default; 2620 } 2621 } 2622 2623 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2624 Opts.FixItSuffix = A->getValue(); 2625 2626 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2627 StringRef ArgStr = 2628 Args.hasArg(OPT_interface_stub_version_EQ) 2629 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2630 : "ifs-v1"; 2631 if (ArgStr == "experimental-yaml-elf-v1" || 2632 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2633 ArgStr == "experimental-tapi-elf-v1") { 2634 std::string ErrorMessage = 2635 "Invalid interface stub format: " + ArgStr.str() + 2636 " is deprecated."; 2637 Diags.Report(diag::err_drv_invalid_value) 2638 << "Must specify a valid interface stub format type, ie: " 2639 "-interface-stub-version=ifs-v1" 2640 << ErrorMessage; 2641 ProgramAction = frontend::ParseSyntaxOnly; 2642 } else if (!ArgStr.startswith("ifs-")) { 2643 std::string ErrorMessage = 2644 "Invalid interface stub format: " + ArgStr.str() + "."; 2645 Diags.Report(diag::err_drv_invalid_value) 2646 << "Must specify a valid interface stub format type, ie: " 2647 "-interface-stub-version=ifs-v1" 2648 << ErrorMessage; 2649 ProgramAction = frontend::ParseSyntaxOnly; 2650 } 2651 } 2652 2653 Opts.ProgramAction = *ProgramAction; 2654 } 2655 2656 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2657 Opts.Plugins.emplace_back(A->getValue(0)); 2658 Opts.ProgramAction = frontend::PluginAction; 2659 Opts.ActionName = A->getValue(); 2660 } 2661 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2662 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2663 2664 for (const std::string &Arg : 2665 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2666 std::string BlockName; 2667 unsigned MajorVersion; 2668 unsigned MinorVersion; 2669 bool Hashed; 2670 std::string UserInfo; 2671 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2672 MinorVersion, Hashed, UserInfo)) { 2673 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2674 2675 continue; 2676 } 2677 2678 // Add the testing module file extension. 2679 Opts.ModuleFileExtensions.push_back( 2680 std::make_shared<TestModuleFileExtension>( 2681 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2682 } 2683 2684 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2685 Opts.CodeCompletionAt = 2686 ParsedSourceLocation::FromString(A->getValue()); 2687 if (Opts.CodeCompletionAt.FileName.empty()) 2688 Diags.Report(diag::err_drv_invalid_value) 2689 << A->getAsString(Args) << A->getValue(); 2690 } 2691 2692 Opts.Plugins = Args.getAllArgValues(OPT_load); 2693 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2694 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2695 // Only the -fmodule-file=<file> form. 2696 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2697 StringRef Val = A->getValue(); 2698 if (Val.find('=') == StringRef::npos) 2699 Opts.ModuleFiles.push_back(std::string(Val)); 2700 } 2701 2702 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2703 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2704 << "-emit-module"; 2705 2706 if (Args.hasArg(OPT_aux_target_cpu)) 2707 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2708 if (Args.hasArg(OPT_aux_target_feature)) 2709 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2710 2711 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2712 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2713 Diags.Report(diag::err_drv_argument_not_allowed_with) 2714 << "ARC migration" << "ObjC migration"; 2715 } 2716 2717 InputKind DashX(Language::Unknown); 2718 if (const Arg *A = Args.getLastArg(OPT_x)) { 2719 StringRef XValue = A->getValue(); 2720 2721 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'. 2722 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2723 bool Preprocessed = XValue.consume_back("-cpp-output"); 2724 bool ModuleMap = XValue.consume_back("-module-map"); 2725 IsHeaderFile = !Preprocessed && !ModuleMap && 2726 XValue != "precompiled-header" && 2727 XValue.consume_back("-header"); 2728 2729 // Principal languages. 2730 DashX = llvm::StringSwitch<InputKind>(XValue) 2731 .Case("c", Language::C) 2732 .Case("cl", Language::OpenCL) 2733 .Case("clcpp", Language::OpenCLCXX) 2734 .Case("cuda", Language::CUDA) 2735 .Case("hip", Language::HIP) 2736 .Case("c++", Language::CXX) 2737 .Case("objective-c", Language::ObjC) 2738 .Case("objective-c++", Language::ObjCXX) 2739 .Case("renderscript", Language::RenderScript) 2740 .Default(Language::Unknown); 2741 2742 // "objc[++]-cpp-output" is an acceptable synonym for 2743 // "objective-c[++]-cpp-output". 2744 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap) 2745 DashX = llvm::StringSwitch<InputKind>(XValue) 2746 .Case("objc", Language::ObjC) 2747 .Case("objc++", Language::ObjCXX) 2748 .Default(Language::Unknown); 2749 2750 // Some special cases cannot be combined with suffixes. 2751 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile) 2752 DashX = llvm::StringSwitch<InputKind>(XValue) 2753 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2754 .Case("assembler-with-cpp", Language::Asm) 2755 .Cases("ast", "pcm", "precompiled-header", 2756 InputKind(Language::Unknown, InputKind::Precompiled)) 2757 .Case("ir", Language::LLVM_IR) 2758 .Default(Language::Unknown); 2759 2760 if (DashX.isUnknown()) 2761 Diags.Report(diag::err_drv_invalid_value) 2762 << A->getAsString(Args) << A->getValue(); 2763 2764 if (Preprocessed) 2765 DashX = DashX.getPreprocessed(); 2766 if (ModuleMap) 2767 DashX = DashX.withFormat(InputKind::ModuleMap); 2768 } 2769 2770 // '-' is the default input if none is given. 2771 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2772 Opts.Inputs.clear(); 2773 if (Inputs.empty()) 2774 Inputs.push_back("-"); 2775 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2776 InputKind IK = DashX; 2777 if (IK.isUnknown()) { 2778 IK = FrontendOptions::getInputKindForExtension( 2779 StringRef(Inputs[i]).rsplit('.').second); 2780 // FIXME: Warn on this? 2781 if (IK.isUnknown()) 2782 IK = Language::C; 2783 // FIXME: Remove this hack. 2784 if (i == 0) 2785 DashX = IK; 2786 } 2787 2788 bool IsSystem = false; 2789 2790 // The -emit-module action implicitly takes a module map. 2791 if (Opts.ProgramAction == frontend::GenerateModule && 2792 IK.getFormat() == InputKind::Source) { 2793 IK = IK.withFormat(InputKind::ModuleMap); 2794 IsSystem = Opts.IsSystemModule; 2795 } 2796 2797 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2798 } 2799 2800 Opts.DashX = DashX; 2801 2802 return Diags.getNumErrors() == NumErrorsBefore; 2803 } 2804 2805 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2806 void *MainAddr) { 2807 std::string ClangExecutable = 2808 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2809 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2810 } 2811 2812 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2813 SmallVectorImpl<const char *> &Args, 2814 CompilerInvocation::StringAllocator SA) { 2815 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2816 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2817 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2818 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2819 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2820 MERGER, EXTRACTOR, TABLE_INDEX) \ 2821 GENERATE_OPTION_WITH_MARSHALLING( \ 2822 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2823 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2824 #include "clang/Driver/Options.inc" 2825 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2826 2827 if (Opts.UseLibcxx) 2828 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2829 2830 if (!Opts.ModuleCachePath.empty()) 2831 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2832 2833 for (const auto &File : Opts.PrebuiltModuleFiles) 2834 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2835 2836 for (const auto &Path : Opts.PrebuiltModulePaths) 2837 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2838 2839 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2840 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2841 2842 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2843 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2844 llvm::Optional<bool> IsFramework, 2845 llvm::Optional<bool> IgnoreSysRoot) { 2846 return llvm::find(Groups, Entry.Group) != Groups.end() && 2847 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2848 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2849 }; 2850 2851 auto It = Opts.UserEntries.begin(); 2852 auto End = Opts.UserEntries.end(); 2853 2854 // Add -I..., -F..., and -index-header-map options in order. 2855 for (; It < End && 2856 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2857 ++It) { 2858 OptSpecifier Opt = [It, Matches]() { 2859 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2860 return OPT_F; 2861 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2862 return OPT_I; 2863 if (Matches(*It, frontend::Angled, true, true)) 2864 return OPT_F; 2865 if (Matches(*It, frontend::Angled, false, true)) 2866 return OPT_I; 2867 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2868 }(); 2869 2870 if (It->Group == frontend::IndexHeaderMap) 2871 GenerateArg(Args, OPT_index_header_map, SA); 2872 GenerateArg(Args, Opt, It->Path, SA); 2873 }; 2874 2875 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2876 // have already been generated as "-I[xx]yy". If that's the case, their 2877 // position on command line was such that this has no semantic impact on 2878 // include paths. 2879 for (; It < End && 2880 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2881 ++It) { 2882 OptSpecifier Opt = 2883 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2884 GenerateArg(Args, Opt, It->Path, SA); 2885 } 2886 2887 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2888 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2889 // command line was such that this has no semantic impact on include paths. 2890 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2891 GenerateArg(Args, OPT_idirafter, It->Path, SA); 2892 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 2893 GenerateArg(Args, OPT_iquote, It->Path, SA); 2894 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 2895 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 2896 It->Path, SA); 2897 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 2898 GenerateArg(Args, OPT_iframework, It->Path, SA); 2899 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 2900 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 2901 2902 // Add the paths for the various language specific isystem flags. 2903 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 2904 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 2905 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 2906 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 2907 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 2908 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 2909 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 2910 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 2911 2912 // Add the internal paths from a driver that detects standard include paths. 2913 // Note: Some paths that came from "-internal-isystem" arguments may have 2914 // already been generated as "-isystem". If that's the case, their position on 2915 // command line was such that this has no semantic impact on include paths. 2916 for (; It < End && 2917 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 2918 ++It) { 2919 OptSpecifier Opt = It->Group == frontend::System 2920 ? OPT_internal_isystem 2921 : OPT_internal_externc_isystem; 2922 GenerateArg(Args, Opt, It->Path, SA); 2923 } 2924 2925 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 2926 2927 // Add the path prefixes which are implicitly treated as being system headers. 2928 for (const auto &P : Opts.SystemHeaderPrefixes) { 2929 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 2930 : OPT_no_system_header_prefix; 2931 GenerateArg(Args, Opt, P.Prefix, SA); 2932 } 2933 2934 for (const std::string &F : Opts.VFSOverlayFiles) 2935 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 2936 } 2937 2938 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 2939 DiagnosticsEngine &Diags, 2940 const std::string &WorkingDir) { 2941 unsigned NumErrorsBefore = Diags.getNumErrors(); 2942 2943 HeaderSearchOptions *HeaderSearchOpts = &Opts; 2944 2945 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2946 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2947 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2948 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2949 MERGER, EXTRACTOR, TABLE_INDEX) \ 2950 PARSE_OPTION_WITH_MARSHALLING( \ 2951 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2952 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2953 #include "clang/Driver/Options.inc" 2954 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2955 2956 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 2957 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 2958 2959 // Canonicalize -fmodules-cache-path before storing it. 2960 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 2961 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 2962 if (WorkingDir.empty()) 2963 llvm::sys::fs::make_absolute(P); 2964 else 2965 llvm::sys::fs::make_absolute(WorkingDir, P); 2966 } 2967 llvm::sys::path::remove_dots(P); 2968 Opts.ModuleCachePath = std::string(P.str()); 2969 2970 // Only the -fmodule-file=<name>=<file> form. 2971 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2972 StringRef Val = A->getValue(); 2973 if (Val.find('=') != StringRef::npos){ 2974 auto Split = Val.split('='); 2975 Opts.PrebuiltModuleFiles.insert( 2976 {std::string(Split.first), std::string(Split.second)}); 2977 } 2978 } 2979 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 2980 Opts.AddPrebuiltModulePath(A->getValue()); 2981 2982 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 2983 StringRef MacroDef = A->getValue(); 2984 Opts.ModulesIgnoreMacros.insert( 2985 llvm::CachedHashString(MacroDef.split('=').first)); 2986 } 2987 2988 // Add -I..., -F..., and -index-header-map options in order. 2989 bool IsIndexHeaderMap = false; 2990 bool IsSysrootSpecified = 2991 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 2992 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 2993 if (A->getOption().matches(OPT_index_header_map)) { 2994 // -index-header-map applies to the next -I or -F. 2995 IsIndexHeaderMap = true; 2996 continue; 2997 } 2998 2999 frontend::IncludeDirGroup Group = 3000 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3001 3002 bool IsFramework = A->getOption().matches(OPT_F); 3003 std::string Path = A->getValue(); 3004 3005 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3006 SmallString<32> Buffer; 3007 llvm::sys::path::append(Buffer, Opts.Sysroot, 3008 llvm::StringRef(A->getValue()).substr(1)); 3009 Path = std::string(Buffer.str()); 3010 } 3011 3012 Opts.AddPath(Path, Group, IsFramework, 3013 /*IgnoreSysroot*/ true); 3014 IsIndexHeaderMap = false; 3015 } 3016 3017 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3018 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3019 for (const auto *A : 3020 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3021 if (A->getOption().matches(OPT_iprefix)) 3022 Prefix = A->getValue(); 3023 else if (A->getOption().matches(OPT_iwithprefix)) 3024 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3025 else 3026 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3027 } 3028 3029 for (const auto *A : Args.filtered(OPT_idirafter)) 3030 Opts.AddPath(A->getValue(), frontend::After, false, true); 3031 for (const auto *A : Args.filtered(OPT_iquote)) 3032 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3033 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3034 Opts.AddPath(A->getValue(), frontend::System, false, 3035 !A->getOption().matches(OPT_iwithsysroot)); 3036 for (const auto *A : Args.filtered(OPT_iframework)) 3037 Opts.AddPath(A->getValue(), frontend::System, true, true); 3038 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3039 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3040 /*IgnoreSysRoot=*/false); 3041 3042 // Add the paths for the various language specific isystem flags. 3043 for (const auto *A : Args.filtered(OPT_c_isystem)) 3044 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3045 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3046 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3047 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3048 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3049 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3050 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3051 3052 // Add the internal paths from a driver that detects standard include paths. 3053 for (const auto *A : 3054 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3055 frontend::IncludeDirGroup Group = frontend::System; 3056 if (A->getOption().matches(OPT_internal_externc_isystem)) 3057 Group = frontend::ExternCSystem; 3058 Opts.AddPath(A->getValue(), Group, false, true); 3059 } 3060 3061 // Add the path prefixes which are implicitly treated as being system headers. 3062 for (const auto *A : 3063 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3064 Opts.AddSystemHeaderPrefix( 3065 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3066 3067 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3068 Opts.AddVFSOverlayFile(A->getValue()); 3069 3070 return Diags.getNumErrors() == NumErrorsBefore; 3071 } 3072 3073 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 3074 const llvm::Triple &T, 3075 std::vector<std::string> &Includes, 3076 LangStandard::Kind LangStd) { 3077 // Set some properties which depend solely on the input kind; it would be nice 3078 // to move these to the language standard, and have the driver resolve the 3079 // input kind + language standard. 3080 // 3081 // FIXME: Perhaps a better model would be for a single source file to have 3082 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 3083 // simultaneously active? 3084 if (IK.getLanguage() == Language::Asm) { 3085 Opts.AsmPreprocessor = 1; 3086 } else if (IK.isObjectiveC()) { 3087 Opts.ObjC = 1; 3088 } 3089 3090 if (LangStd == LangStandard::lang_unspecified) { 3091 // Based on the base language, pick one. 3092 switch (IK.getLanguage()) { 3093 case Language::Unknown: 3094 case Language::LLVM_IR: 3095 llvm_unreachable("Invalid input kind!"); 3096 case Language::OpenCL: 3097 LangStd = LangStandard::lang_opencl12; 3098 break; 3099 case Language::OpenCLCXX: 3100 LangStd = LangStandard::lang_openclcpp; 3101 break; 3102 case Language::CUDA: 3103 LangStd = LangStandard::lang_cuda; 3104 break; 3105 case Language::Asm: 3106 case Language::C: 3107 #if defined(CLANG_DEFAULT_STD_C) 3108 LangStd = CLANG_DEFAULT_STD_C; 3109 #else 3110 // The PS4 uses C99 as the default C standard. 3111 if (T.isPS4()) 3112 LangStd = LangStandard::lang_gnu99; 3113 else 3114 LangStd = LangStandard::lang_gnu17; 3115 #endif 3116 break; 3117 case Language::ObjC: 3118 #if defined(CLANG_DEFAULT_STD_C) 3119 LangStd = CLANG_DEFAULT_STD_C; 3120 #else 3121 LangStd = LangStandard::lang_gnu11; 3122 #endif 3123 break; 3124 case Language::CXX: 3125 case Language::ObjCXX: 3126 #if defined(CLANG_DEFAULT_STD_CXX) 3127 LangStd = CLANG_DEFAULT_STD_CXX; 3128 #else 3129 LangStd = LangStandard::lang_gnucxx14; 3130 #endif 3131 break; 3132 case Language::RenderScript: 3133 LangStd = LangStandard::lang_c99; 3134 break; 3135 case Language::HIP: 3136 LangStd = LangStandard::lang_hip; 3137 break; 3138 } 3139 } 3140 3141 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3142 Opts.LangStd = LangStd; 3143 Opts.LineComment = Std.hasLineComments(); 3144 Opts.C99 = Std.isC99(); 3145 Opts.C11 = Std.isC11(); 3146 Opts.C17 = Std.isC17(); 3147 Opts.C2x = Std.isC2x(); 3148 Opts.CPlusPlus = Std.isCPlusPlus(); 3149 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 3150 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 3151 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 3152 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 3153 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 3154 Opts.GNUMode = Std.isGNUMode(); 3155 Opts.GNUCVersion = 0; 3156 Opts.HexFloats = Std.hasHexFloats(); 3157 Opts.ImplicitInt = Std.hasImplicitInt(); 3158 3159 Opts.CPlusPlusModules = Opts.CPlusPlus20; 3160 3161 // Set OpenCL Version. 3162 Opts.OpenCL = Std.isOpenCL(); 3163 if (LangStd == LangStandard::lang_opencl10) 3164 Opts.OpenCLVersion = 100; 3165 else if (LangStd == LangStandard::lang_opencl11) 3166 Opts.OpenCLVersion = 110; 3167 else if (LangStd == LangStandard::lang_opencl12) 3168 Opts.OpenCLVersion = 120; 3169 else if (LangStd == LangStandard::lang_opencl20) 3170 Opts.OpenCLVersion = 200; 3171 else if (LangStd == LangStandard::lang_opencl30) 3172 Opts.OpenCLVersion = 300; 3173 else if (LangStd == LangStandard::lang_openclcpp) 3174 Opts.OpenCLCPlusPlusVersion = 100; 3175 3176 // OpenCL has some additional defaults. 3177 if (Opts.OpenCL) { 3178 Opts.AltiVec = 0; 3179 Opts.ZVector = 0; 3180 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3181 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 3182 Opts.OpenCLPipes = Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3183 Opts.OpenCLGenericAddressSpace = 3184 Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200; 3185 3186 // Include default header file for OpenCL. 3187 if (Opts.IncludeDefaultHeader) { 3188 if (Opts.DeclareOpenCLBuiltins) { 3189 // Only include base header file for builtin types and constants. 3190 Includes.push_back("opencl-c-base.h"); 3191 } else { 3192 Includes.push_back("opencl-c.h"); 3193 } 3194 } 3195 } 3196 3197 Opts.HIP = IK.getLanguage() == Language::HIP; 3198 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 3199 if (Opts.HIP) { 3200 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 3201 // fuses multiplication/addition instructions without contract flag from 3202 // device library functions in LLVM bitcode, which causes accuracy loss in 3203 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 3204 // For device library functions in bitcode to work, 'Strict' or 'Standard' 3205 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 3206 // FP contract option is used to allow fuse across statements in frontend 3207 // whereas respecting contract flag in backend. 3208 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3209 } else if (Opts.CUDA) { 3210 // Allow fuse across statements disregarding pragmas. 3211 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3212 } 3213 3214 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 3215 3216 // OpenCL and C++ both have bool, true, false keywords. 3217 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 3218 3219 // OpenCL has half keyword 3220 Opts.Half = Opts.OpenCL; 3221 } 3222 3223 /// Check if input file kind and language standard are compatible. 3224 static bool IsInputCompatibleWithStandard(InputKind IK, 3225 const LangStandard &S) { 3226 switch (IK.getLanguage()) { 3227 case Language::Unknown: 3228 case Language::LLVM_IR: 3229 llvm_unreachable("should not parse language flags for this input"); 3230 3231 case Language::C: 3232 case Language::ObjC: 3233 case Language::RenderScript: 3234 return S.getLanguage() == Language::C; 3235 3236 case Language::OpenCL: 3237 return S.getLanguage() == Language::OpenCL || 3238 S.getLanguage() == Language::OpenCLCXX; 3239 3240 case Language::OpenCLCXX: 3241 return S.getLanguage() == Language::OpenCLCXX; 3242 3243 case Language::CXX: 3244 case Language::ObjCXX: 3245 return S.getLanguage() == Language::CXX; 3246 3247 case Language::CUDA: 3248 // FIXME: What -std= values should be permitted for CUDA compilations? 3249 return S.getLanguage() == Language::CUDA || 3250 S.getLanguage() == Language::CXX; 3251 3252 case Language::HIP: 3253 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3254 3255 case Language::Asm: 3256 // Accept (and ignore) all -std= values. 3257 // FIXME: The -std= value is not ignored; it affects the tokenization 3258 // and preprocessing rules if we're preprocessing this asm input. 3259 return true; 3260 } 3261 3262 llvm_unreachable("unexpected input language"); 3263 } 3264 3265 /// Get language name for given input kind. 3266 static const StringRef GetInputKindName(InputKind IK) { 3267 switch (IK.getLanguage()) { 3268 case Language::C: 3269 return "C"; 3270 case Language::ObjC: 3271 return "Objective-C"; 3272 case Language::CXX: 3273 return "C++"; 3274 case Language::ObjCXX: 3275 return "Objective-C++"; 3276 case Language::OpenCL: 3277 return "OpenCL"; 3278 case Language::OpenCLCXX: 3279 return "C++ for OpenCL"; 3280 case Language::CUDA: 3281 return "CUDA"; 3282 case Language::RenderScript: 3283 return "RenderScript"; 3284 case Language::HIP: 3285 return "HIP"; 3286 3287 case Language::Asm: 3288 return "Asm"; 3289 case Language::LLVM_IR: 3290 return "LLVM IR"; 3291 3292 case Language::Unknown: 3293 break; 3294 } 3295 llvm_unreachable("unknown input language"); 3296 } 3297 3298 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3299 SmallVectorImpl<const char *> &Args, 3300 StringAllocator SA, 3301 const llvm::Triple &T, InputKind IK) { 3302 if (IK.getFormat() == InputKind::Precompiled || 3303 IK.getLanguage() == Language::LLVM_IR) { 3304 if (Opts.ObjCAutoRefCount) 3305 GenerateArg(Args, OPT_fobjc_arc, SA); 3306 if (Opts.PICLevel != 0) 3307 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3308 if (Opts.PIE) 3309 GenerateArg(Args, OPT_pic_is_pie, SA); 3310 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3311 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3312 3313 return; 3314 } 3315 3316 OptSpecifier StdOpt; 3317 switch (Opts.LangStd) { 3318 case LangStandard::lang_opencl10: 3319 case LangStandard::lang_opencl11: 3320 case LangStandard::lang_opencl12: 3321 case LangStandard::lang_opencl20: 3322 case LangStandard::lang_opencl30: 3323 case LangStandard::lang_openclcpp: 3324 StdOpt = OPT_cl_std_EQ; 3325 break; 3326 default: 3327 StdOpt = OPT_std_EQ; 3328 break; 3329 } 3330 3331 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3332 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3333 3334 if (Opts.IncludeDefaultHeader) 3335 GenerateArg(Args, OPT_finclude_default_header, SA); 3336 if (Opts.DeclareOpenCLBuiltins) 3337 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3338 3339 const LangOptions *LangOpts = &Opts; 3340 3341 #define LANG_OPTION_WITH_MARSHALLING( \ 3342 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3343 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3344 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3345 MERGER, EXTRACTOR, TABLE_INDEX) \ 3346 GENERATE_OPTION_WITH_MARSHALLING( \ 3347 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3348 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3349 #include "clang/Driver/Options.inc" 3350 #undef LANG_OPTION_WITH_MARSHALLING 3351 3352 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3353 3354 if (Opts.ObjC) { 3355 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3356 3357 if (Opts.GC == LangOptions::GCOnly) 3358 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3359 else if (Opts.GC == LangOptions::HybridGC) 3360 GenerateArg(Args, OPT_fobjc_gc, SA); 3361 else if (Opts.ObjCAutoRefCount == 1) 3362 GenerateArg(Args, OPT_fobjc_arc, SA); 3363 3364 if (Opts.ObjCWeakRuntime) 3365 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3366 3367 if (Opts.ObjCWeak) 3368 GenerateArg(Args, OPT_fobjc_weak, SA); 3369 3370 if (Opts.ObjCSubscriptingLegacyRuntime) 3371 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3372 } 3373 3374 if (Opts.GNUCVersion != 0) { 3375 unsigned Major = Opts.GNUCVersion / 100 / 100; 3376 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3377 unsigned Patch = Opts.GNUCVersion % 100; 3378 GenerateArg(Args, OPT_fgnuc_version_EQ, 3379 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3380 } 3381 3382 if (Opts.IgnoreXCOFFVisibility) 3383 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3384 3385 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3386 GenerateArg(Args, OPT_ftrapv, SA); 3387 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3388 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3389 GenerateArg(Args, OPT_fwrapv, SA); 3390 } 3391 3392 if (Opts.MSCompatibilityVersion != 0) { 3393 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3394 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3395 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3396 GenerateArg(Args, OPT_fms_compatibility_version, 3397 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3398 } 3399 3400 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3401 if (!Opts.Trigraphs) 3402 GenerateArg(Args, OPT_fno_trigraphs, SA); 3403 } else { 3404 if (Opts.Trigraphs) 3405 GenerateArg(Args, OPT_ftrigraphs, SA); 3406 } 3407 3408 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3409 GenerateArg(Args, OPT_fblocks, SA); 3410 3411 if (Opts.ConvergentFunctions && 3412 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3413 GenerateArg(Args, OPT_fconvergent_functions, SA); 3414 3415 if (Opts.NoBuiltin && !Opts.Freestanding) 3416 GenerateArg(Args, OPT_fno_builtin, SA); 3417 3418 if (!Opts.NoBuiltin) 3419 for (const auto &Func : Opts.NoBuiltinFuncs) 3420 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3421 3422 if (Opts.LongDoubleSize == 128) 3423 GenerateArg(Args, OPT_mlong_double_128, SA); 3424 else if (Opts.LongDoubleSize == 64) 3425 GenerateArg(Args, OPT_mlong_double_64, SA); 3426 3427 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3428 3429 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3430 // '-fopenmp-targets='. 3431 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3432 GenerateArg(Args, OPT_fopenmp, SA); 3433 3434 if (Opts.OpenMP != 50) 3435 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3436 3437 if (!Opts.OpenMPUseTLS) 3438 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3439 3440 if (Opts.OpenMPIsDevice) 3441 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3442 3443 if (Opts.OpenMPIRBuilder) 3444 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3445 } 3446 3447 if (Opts.OpenMPSimd) { 3448 GenerateArg(Args, OPT_fopenmp_simd, SA); 3449 3450 if (Opts.OpenMP != 50) 3451 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3452 } 3453 3454 if (Opts.OpenMPCUDANumSMs != 0) 3455 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3456 Twine(Opts.OpenMPCUDANumSMs), SA); 3457 3458 if (Opts.OpenMPCUDABlocksPerSM != 0) 3459 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3460 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3461 3462 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3463 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3464 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3465 3466 if (!Opts.OMPTargetTriples.empty()) { 3467 std::string Targets; 3468 llvm::raw_string_ostream OS(Targets); 3469 llvm::interleave( 3470 Opts.OMPTargetTriples, OS, 3471 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3472 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3473 } 3474 3475 if (!Opts.OMPHostIRFile.empty()) 3476 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3477 3478 if (Opts.OpenMPCUDAMode) 3479 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3480 3481 if (Opts.OpenMPCUDAForceFullRuntime) 3482 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3483 3484 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3485 // generated from CodeGenOptions. 3486 3487 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3488 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3489 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3490 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3491 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3492 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3493 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3494 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3495 3496 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3497 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3498 3499 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3500 for (const std::string &F : Opts.NoSanitizeFiles) 3501 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3502 3503 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3504 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3505 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3506 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3507 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3508 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3509 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3510 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3511 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3512 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3513 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3514 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3515 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3516 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3517 3518 if (Opts.getSignReturnAddressScope() == 3519 LangOptions::SignReturnAddressScopeKind::All) 3520 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3521 else if (Opts.getSignReturnAddressScope() == 3522 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3523 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3524 3525 if (Opts.getSignReturnAddressKey() == 3526 LangOptions::SignReturnAddressKeyKind::BKey) 3527 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3528 3529 if (Opts.CXXABI) 3530 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3531 SA); 3532 3533 if (Opts.RelativeCXXABIVTables) 3534 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3535 else 3536 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3537 3538 for (const auto &MP : Opts.MacroPrefixMap) 3539 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3540 } 3541 3542 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3543 InputKind IK, const llvm::Triple &T, 3544 std::vector<std::string> &Includes, 3545 DiagnosticsEngine &Diags) { 3546 unsigned NumErrorsBefore = Diags.getNumErrors(); 3547 3548 if (IK.getFormat() == InputKind::Precompiled || 3549 IK.getLanguage() == Language::LLVM_IR) { 3550 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3551 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3552 // what the input type is. 3553 if (Args.hasArg(OPT_fobjc_arc)) 3554 Opts.ObjCAutoRefCount = 1; 3555 // PICLevel and PIELevel are needed during code generation and this should 3556 // be set regardless of the input type. 3557 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3558 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3559 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3560 Diags, Opts.Sanitize); 3561 3562 return Diags.getNumErrors() == NumErrorsBefore; 3563 } 3564 3565 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3566 // FIXME: Should we really be parsing this for an Language::Asm input? 3567 3568 // FIXME: Cleanup per-file based stuff. 3569 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3570 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3571 LangStd = LangStandard::getLangKind(A->getValue()); 3572 if (LangStd == LangStandard::lang_unspecified) { 3573 Diags.Report(diag::err_drv_invalid_value) 3574 << A->getAsString(Args) << A->getValue(); 3575 // Report supported standards with short description. 3576 for (unsigned KindValue = 0; 3577 KindValue != LangStandard::lang_unspecified; 3578 ++KindValue) { 3579 const LangStandard &Std = LangStandard::getLangStandardForKind( 3580 static_cast<LangStandard::Kind>(KindValue)); 3581 if (IsInputCompatibleWithStandard(IK, Std)) { 3582 auto Diag = Diags.Report(diag::note_drv_use_standard); 3583 Diag << Std.getName() << Std.getDescription(); 3584 unsigned NumAliases = 0; 3585 #define LANGSTANDARD(id, name, lang, desc, features) 3586 #define LANGSTANDARD_ALIAS(id, alias) \ 3587 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3588 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3589 #include "clang/Basic/LangStandards.def" 3590 Diag << NumAliases; 3591 #define LANGSTANDARD(id, name, lang, desc, features) 3592 #define LANGSTANDARD_ALIAS(id, alias) \ 3593 if (KindValue == LangStandard::lang_##id) Diag << alias; 3594 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3595 #include "clang/Basic/LangStandards.def" 3596 } 3597 } 3598 } else { 3599 // Valid standard, check to make sure language and standard are 3600 // compatible. 3601 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3602 if (!IsInputCompatibleWithStandard(IK, Std)) { 3603 Diags.Report(diag::err_drv_argument_not_allowed_with) 3604 << A->getAsString(Args) << GetInputKindName(IK); 3605 } 3606 } 3607 } 3608 3609 // -cl-std only applies for OpenCL language standards. 3610 // Override the -std option in this case. 3611 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3612 LangStandard::Kind OpenCLLangStd 3613 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3614 .Cases("cl", "CL", LangStandard::lang_opencl10) 3615 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3616 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3617 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3618 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3619 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3620 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp) 3621 .Default(LangStandard::lang_unspecified); 3622 3623 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3624 Diags.Report(diag::err_drv_invalid_value) 3625 << A->getAsString(Args) << A->getValue(); 3626 } 3627 else 3628 LangStd = OpenCLLangStd; 3629 } 3630 3631 // These need to be parsed now. They are used to set OpenCL defaults. 3632 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3633 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3634 3635 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd); 3636 3637 // The key paths of codegen options defined in Options.td start with 3638 // "LangOpts->". Let's provide the expected variable name and type. 3639 LangOptions *LangOpts = &Opts; 3640 3641 #define LANG_OPTION_WITH_MARSHALLING( \ 3642 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3643 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3644 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3645 MERGER, EXTRACTOR, TABLE_INDEX) \ 3646 PARSE_OPTION_WITH_MARSHALLING( \ 3647 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3648 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3649 #include "clang/Driver/Options.inc" 3650 #undef LANG_OPTION_WITH_MARSHALLING 3651 3652 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3653 StringRef Name = A->getValue(); 3654 if (Name == "full" || Name == "branch") { 3655 Opts.CFProtectionBranch = 1; 3656 } 3657 } 3658 3659 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3660 !Args.hasArg(OPT_sycl_std_EQ)) { 3661 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3662 // provide -sycl-std=, we want to default it to whatever the default SYCL 3663 // version is. I could not find a way to express this with the options 3664 // tablegen because we still want this value to be SYCL_None when the user 3665 // is not in device or host mode. 3666 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3667 } 3668 3669 if (Opts.ObjC) { 3670 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3671 StringRef value = arg->getValue(); 3672 if (Opts.ObjCRuntime.tryParse(value)) 3673 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3674 } 3675 3676 if (Args.hasArg(OPT_fobjc_gc_only)) 3677 Opts.setGC(LangOptions::GCOnly); 3678 else if (Args.hasArg(OPT_fobjc_gc)) 3679 Opts.setGC(LangOptions::HybridGC); 3680 else if (Args.hasArg(OPT_fobjc_arc)) { 3681 Opts.ObjCAutoRefCount = 1; 3682 if (!Opts.ObjCRuntime.allowsARC()) 3683 Diags.Report(diag::err_arc_unsupported_on_runtime); 3684 } 3685 3686 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3687 // whether the feature is actually enabled. This is predominantly 3688 // determined by -fobjc-runtime, but we allow it to be overridden 3689 // from the command line for testing purposes. 3690 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3691 Opts.ObjCWeakRuntime = 1; 3692 else 3693 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3694 3695 // ObjCWeak determines whether __weak is actually enabled. 3696 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3697 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3698 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3699 assert(!Opts.ObjCWeak); 3700 } else if (Opts.getGC() != LangOptions::NonGC) { 3701 Diags.Report(diag::err_objc_weak_with_gc); 3702 } else if (!Opts.ObjCWeakRuntime) { 3703 Diags.Report(diag::err_objc_weak_unsupported); 3704 } else { 3705 Opts.ObjCWeak = 1; 3706 } 3707 } else if (Opts.ObjCAutoRefCount) { 3708 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3709 } 3710 3711 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3712 Opts.ObjCSubscriptingLegacyRuntime = 3713 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3714 } 3715 3716 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3717 // Check that the version has 1 to 3 components and the minor and patch 3718 // versions fit in two decimal digits. 3719 VersionTuple GNUCVer; 3720 bool Invalid = GNUCVer.tryParse(A->getValue()); 3721 unsigned Major = GNUCVer.getMajor(); 3722 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3723 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3724 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3725 Diags.Report(diag::err_drv_invalid_value) 3726 << A->getAsString(Args) << A->getValue(); 3727 } 3728 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3729 } 3730 3731 // In AIX OS, the -mignore-xcoff-visibility is enable by default if there is 3732 // no -fvisibility=* option. 3733 // This is the reason why '-fvisibility' needs to be always generated: 3734 // its absence implies '-mignore-xcoff-visibility'. 3735 // 3736 // Suppose the original cc1 command line does contain '-fvisibility default': 3737 // '-mignore-xcoff-visibility' should not be implied. 3738 // * If '-fvisibility' is not generated (as most options with default values 3739 // don't), its absence would imply '-mignore-xcoff-visibility'. This changes 3740 // the command line semantics. 3741 // * If '-fvisibility' is generated regardless of its presence and value, 3742 // '-mignore-xcoff-visibility' won't be implied and the command line 3743 // semantics are kept intact. 3744 // 3745 // When the original cc1 command line does **not** contain '-fvisibility', 3746 // '-mignore-xcoff-visibility' is implied. The generated command line will 3747 // contain both '-fvisibility default' and '-mignore-xcoff-visibility' and 3748 // subsequent calls to `CreateFromArgs`/`generateCC1CommandLine` will always 3749 // produce the same arguments. 3750 3751 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 3752 !Args.hasArg(OPT_fvisibility))) 3753 Opts.IgnoreXCOFFVisibility = 1; 3754 3755 if (Args.hasArg(OPT_ftrapv)) { 3756 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3757 // Set the handler, if one is specified. 3758 Opts.OverflowHandler = 3759 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3760 } 3761 else if (Args.hasArg(OPT_fwrapv)) 3762 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3763 3764 Opts.MSCompatibilityVersion = 0; 3765 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3766 VersionTuple VT; 3767 if (VT.tryParse(A->getValue())) 3768 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3769 << A->getValue(); 3770 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3771 VT.getMinor().getValueOr(0) * 100000 + 3772 VT.getSubminor().getValueOr(0); 3773 } 3774 3775 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3776 // is specified, or -std is set to a conforming mode. 3777 // Trigraphs are disabled by default in c++1z onwards. 3778 // For z/OS, trigraphs are enabled by default (without regard to the above). 3779 Opts.Trigraphs = 3780 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3781 Opts.Trigraphs = 3782 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3783 3784 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3785 && Opts.OpenCLVersion == 200); 3786 3787 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3788 Opts.SYCLIsDevice || 3789 Args.hasArg(OPT_fconvergent_functions); 3790 3791 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3792 if (!Opts.NoBuiltin) 3793 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3794 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128) 3795 ? 128 3796 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0; 3797 if (Opts.FastRelaxedMath) 3798 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3799 llvm::sort(Opts.ModuleFeatures); 3800 3801 // -mrtd option 3802 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3803 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3804 Diags.Report(diag::err_drv_argument_not_allowed_with) 3805 << A->getSpelling() << "-fdefault-calling-conv"; 3806 else { 3807 if (T.getArch() != llvm::Triple::x86) 3808 Diags.Report(diag::err_drv_argument_not_allowed_with) 3809 << A->getSpelling() << T.getTriple(); 3810 else 3811 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3812 } 3813 } 3814 3815 // Check if -fopenmp is specified and set default version to 5.0. 3816 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3817 // Check if -fopenmp-simd is specified. 3818 bool IsSimdSpecified = 3819 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3820 /*Default=*/false); 3821 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3822 Opts.OpenMPUseTLS = 3823 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3824 Opts.OpenMPIsDevice = 3825 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3826 Opts.OpenMPIRBuilder = 3827 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3828 bool IsTargetSpecified = 3829 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3830 3831 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3832 3833 if (Opts.OpenMP || Opts.OpenMPSimd) { 3834 if (int Version = getLastArgIntValue( 3835 Args, OPT_fopenmp_version_EQ, 3836 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3837 Opts.OpenMP = Version; 3838 // Provide diagnostic when a given target is not expected to be an OpenMP 3839 // device or host. 3840 if (!Opts.OpenMPIsDevice) { 3841 switch (T.getArch()) { 3842 default: 3843 break; 3844 // Add unsupported host targets here: 3845 case llvm::Triple::nvptx: 3846 case llvm::Triple::nvptx64: 3847 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3848 break; 3849 } 3850 } 3851 } 3852 3853 // Set the flag to prevent the implementation from emitting device exception 3854 // handling code for those requiring so. 3855 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3856 Opts.OpenCLCPlusPlus) { 3857 Opts.Exceptions = 0; 3858 Opts.CXXExceptions = 0; 3859 } 3860 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3861 Opts.OpenMPCUDANumSMs = 3862 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3863 Opts.OpenMPCUDANumSMs, Diags); 3864 Opts.OpenMPCUDABlocksPerSM = 3865 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3866 Opts.OpenMPCUDABlocksPerSM, Diags); 3867 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3868 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3869 Opts.OpenMPCUDAReductionBufNum, Diags); 3870 } 3871 3872 // Get the OpenMP target triples if any. 3873 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3874 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3875 auto getArchPtrSize = [](const llvm::Triple &T) { 3876 if (T.isArch16Bit()) 3877 return Arch16Bit; 3878 if (T.isArch32Bit()) 3879 return Arch32Bit; 3880 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3881 return Arch64Bit; 3882 }; 3883 3884 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3885 llvm::Triple TT(A->getValue(i)); 3886 3887 if (TT.getArch() == llvm::Triple::UnknownArch || 3888 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3889 TT.getArch() == llvm::Triple::nvptx || 3890 TT.getArch() == llvm::Triple::nvptx64 || 3891 TT.getArch() == llvm::Triple::amdgcn || 3892 TT.getArch() == llvm::Triple::x86 || 3893 TT.getArch() == llvm::Triple::x86_64)) 3894 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3895 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3896 Diags.Report(diag::err_drv_incompatible_omp_arch) 3897 << A->getValue(i) << T.str(); 3898 else 3899 Opts.OMPTargetTriples.push_back(TT); 3900 } 3901 } 3902 3903 // Get OpenMP host file path if any and report if a non existent file is 3904 // found 3905 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3906 Opts.OMPHostIRFile = A->getValue(); 3907 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3908 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3909 << Opts.OMPHostIRFile; 3910 } 3911 3912 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3913 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3914 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3915 3916 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3917 Opts.OpenMPCUDAForceFullRuntime = 3918 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3919 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 3920 3921 // FIXME: Eliminate this dependency. 3922 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3923 OptSize = getOptimizationLevelSize(Args); 3924 Opts.Optimize = Opt != 0; 3925 Opts.OptimizeSize = OptSize != 0; 3926 3927 // This is the __NO_INLINE__ define, which just depends on things like the 3928 // optimization level and -fno-inline, not actually whether the backend has 3929 // inlining enabled. 3930 Opts.NoInlineDefine = !Opts.Optimize; 3931 if (Arg *InlineArg = Args.getLastArg( 3932 options::OPT_finline_functions, options::OPT_finline_hint_functions, 3933 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 3934 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 3935 Opts.NoInlineDefine = true; 3936 3937 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 3938 StringRef Val = A->getValue(); 3939 if (Val == "fast") 3940 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3941 else if (Val == "on") 3942 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3943 else if (Val == "off") 3944 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 3945 else if (Val == "fast-honor-pragmas") 3946 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3947 else 3948 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 3949 } 3950 3951 // Parse -fsanitize= arguments. 3952 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3953 Diags, Opts.Sanitize); 3954 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 3955 std::vector<std::string> systemIgnorelists = 3956 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 3957 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 3958 systemIgnorelists.begin(), 3959 systemIgnorelists.end()); 3960 3961 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 3962 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 3963 3964 StringRef Ver = A->getValue(); 3965 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 3966 unsigned Major, Minor = 0; 3967 3968 // Check the version number is valid: either 3.x (0 <= x <= 9) or 3969 // y or y.0 (4 <= y <= current version). 3970 if (!VerParts.first.startswith("0") && 3971 !VerParts.first.getAsInteger(10, Major) && 3972 3 <= Major && Major <= CLANG_VERSION_MAJOR && 3973 (Major == 3 ? VerParts.second.size() == 1 && 3974 !VerParts.second.getAsInteger(10, Minor) 3975 : VerParts.first.size() == Ver.size() || 3976 VerParts.second == "0")) { 3977 // Got a valid version number. 3978 if (Major == 3 && Minor <= 8) 3979 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 3980 else if (Major <= 4) 3981 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 3982 else if (Major <= 6) 3983 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 3984 else if (Major <= 7) 3985 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 3986 else if (Major <= 9) 3987 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 3988 else if (Major <= 11) 3989 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 3990 else if (Major <= 12) 3991 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 3992 } else if (Ver != "latest") { 3993 Diags.Report(diag::err_drv_invalid_value) 3994 << A->getAsString(Args) << A->getValue(); 3995 } 3996 } 3997 3998 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 3999 StringRef SignScope = A->getValue(); 4000 4001 if (SignScope.equals_insensitive("none")) 4002 Opts.setSignReturnAddressScope( 4003 LangOptions::SignReturnAddressScopeKind::None); 4004 else if (SignScope.equals_insensitive("all")) 4005 Opts.setSignReturnAddressScope( 4006 LangOptions::SignReturnAddressScopeKind::All); 4007 else if (SignScope.equals_insensitive("non-leaf")) 4008 Opts.setSignReturnAddressScope( 4009 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4010 else 4011 Diags.Report(diag::err_drv_invalid_value) 4012 << A->getAsString(Args) << SignScope; 4013 4014 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4015 StringRef SignKey = A->getValue(); 4016 if (!SignScope.empty() && !SignKey.empty()) { 4017 if (SignKey.equals_insensitive("a_key")) 4018 Opts.setSignReturnAddressKey( 4019 LangOptions::SignReturnAddressKeyKind::AKey); 4020 else if (SignKey.equals_insensitive("b_key")) 4021 Opts.setSignReturnAddressKey( 4022 LangOptions::SignReturnAddressKeyKind::BKey); 4023 else 4024 Diags.Report(diag::err_drv_invalid_value) 4025 << A->getAsString(Args) << SignKey; 4026 } 4027 } 4028 } 4029 4030 // The value can be empty, which indicates the system default should be used. 4031 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4032 if (!CXXABI.empty()) { 4033 if (!TargetCXXABI::isABI(CXXABI)) { 4034 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4035 } else { 4036 auto Kind = TargetCXXABI::getKind(CXXABI); 4037 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4038 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4039 else 4040 Opts.CXXABI = Kind; 4041 } 4042 } 4043 4044 Opts.RelativeCXXABIVTables = 4045 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4046 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4047 TargetCXXABI::usesRelativeVTables(T)); 4048 4049 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4050 auto Split = StringRef(A).split('='); 4051 Opts.MacroPrefixMap.insert( 4052 {std::string(Split.first), std::string(Split.second)}); 4053 } 4054 4055 return Diags.getNumErrors() == NumErrorsBefore; 4056 } 4057 4058 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4059 switch (Action) { 4060 case frontend::ASTDeclList: 4061 case frontend::ASTDump: 4062 case frontend::ASTPrint: 4063 case frontend::ASTView: 4064 case frontend::EmitAssembly: 4065 case frontend::EmitBC: 4066 case frontend::EmitHTML: 4067 case frontend::EmitLLVM: 4068 case frontend::EmitLLVMOnly: 4069 case frontend::EmitCodeGenOnly: 4070 case frontend::EmitObj: 4071 case frontend::FixIt: 4072 case frontend::GenerateModule: 4073 case frontend::GenerateModuleInterface: 4074 case frontend::GenerateHeaderModule: 4075 case frontend::GeneratePCH: 4076 case frontend::GenerateInterfaceStubs: 4077 case frontend::ParseSyntaxOnly: 4078 case frontend::ModuleFileInfo: 4079 case frontend::VerifyPCH: 4080 case frontend::PluginAction: 4081 case frontend::RewriteObjC: 4082 case frontend::RewriteTest: 4083 case frontend::RunAnalysis: 4084 case frontend::TemplightDump: 4085 case frontend::MigrateSource: 4086 return false; 4087 4088 case frontend::DumpCompilerOptions: 4089 case frontend::DumpRawTokens: 4090 case frontend::DumpTokens: 4091 case frontend::InitOnly: 4092 case frontend::PrintPreamble: 4093 case frontend::PrintPreprocessedInput: 4094 case frontend::RewriteMacros: 4095 case frontend::RunPreprocessorOnly: 4096 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4097 return true; 4098 } 4099 llvm_unreachable("invalid frontend action"); 4100 } 4101 4102 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4103 SmallVectorImpl<const char *> &Args, 4104 CompilerInvocation::StringAllocator SA, 4105 const LangOptions &LangOpts, 4106 const FrontendOptions &FrontendOpts, 4107 const CodeGenOptions &CodeGenOpts) { 4108 PreprocessorOptions *PreprocessorOpts = &Opts; 4109 4110 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4111 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4112 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4113 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4114 MERGER, EXTRACTOR, TABLE_INDEX) \ 4115 GENERATE_OPTION_WITH_MARSHALLING( \ 4116 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4117 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4118 #include "clang/Driver/Options.inc" 4119 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4120 4121 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4122 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4123 4124 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4125 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4126 4127 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4128 GenerateArg(Args, OPT_preamble_bytes_EQ, 4129 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4130 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4131 SA); 4132 4133 for (const auto &M : Opts.Macros) { 4134 // Don't generate __CET__ macro definitions. They are implied by the 4135 // -fcf-protection option that is generated elsewhere. 4136 if (M.first == "__CET__=1" && !M.second && 4137 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4138 continue; 4139 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4140 !CodeGenOpts.CFProtectionBranch) 4141 continue; 4142 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4143 CodeGenOpts.CFProtectionBranch) 4144 continue; 4145 4146 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4147 } 4148 4149 for (const auto &I : Opts.Includes) { 4150 // Don't generate OpenCL includes. They are implied by other flags that are 4151 // generated elsewhere. 4152 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4153 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4154 I == "opencl-c.h")) 4155 continue; 4156 4157 GenerateArg(Args, OPT_include, I, SA); 4158 } 4159 4160 for (const auto &CI : Opts.ChainedIncludes) 4161 GenerateArg(Args, OPT_chain_include, CI, SA); 4162 4163 for (const auto &RF : Opts.RemappedFiles) 4164 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4165 4166 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4167 // generated elsewhere. 4168 } 4169 4170 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4171 DiagnosticsEngine &Diags, 4172 frontend::ActionKind Action, 4173 const FrontendOptions &FrontendOpts) { 4174 unsigned NumErrorsBefore = Diags.getNumErrors(); 4175 4176 PreprocessorOptions *PreprocessorOpts = &Opts; 4177 4178 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4179 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4180 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4181 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4182 MERGER, EXTRACTOR, TABLE_INDEX) \ 4183 PARSE_OPTION_WITH_MARSHALLING( \ 4184 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4185 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4186 #include "clang/Driver/Options.inc" 4187 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4188 4189 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4190 Args.hasArg(OPT_pch_through_hdrstop_use); 4191 4192 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4193 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4194 4195 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4196 StringRef Value(A->getValue()); 4197 size_t Comma = Value.find(','); 4198 unsigned Bytes = 0; 4199 unsigned EndOfLine = 0; 4200 4201 if (Comma == StringRef::npos || 4202 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4203 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4204 Diags.Report(diag::err_drv_preamble_format); 4205 else { 4206 Opts.PrecompiledPreambleBytes.first = Bytes; 4207 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4208 } 4209 } 4210 4211 // Add the __CET__ macro if a CFProtection option is set. 4212 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4213 StringRef Name = A->getValue(); 4214 if (Name == "branch") 4215 Opts.addMacroDef("__CET__=1"); 4216 else if (Name == "return") 4217 Opts.addMacroDef("__CET__=2"); 4218 else if (Name == "full") 4219 Opts.addMacroDef("__CET__=3"); 4220 } 4221 4222 // Add macros from the command line. 4223 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4224 if (A->getOption().matches(OPT_D)) 4225 Opts.addMacroDef(A->getValue()); 4226 else 4227 Opts.addMacroUndef(A->getValue()); 4228 } 4229 4230 // Add the ordered list of -includes. 4231 for (const auto *A : Args.filtered(OPT_include)) 4232 Opts.Includes.emplace_back(A->getValue()); 4233 4234 for (const auto *A : Args.filtered(OPT_chain_include)) 4235 Opts.ChainedIncludes.emplace_back(A->getValue()); 4236 4237 for (const auto *A : Args.filtered(OPT_remap_file)) { 4238 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4239 4240 if (Split.second.empty()) { 4241 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4242 continue; 4243 } 4244 4245 Opts.addRemappedFile(Split.first, Split.second); 4246 } 4247 4248 // Always avoid lexing editor placeholders when we're just running the 4249 // preprocessor as we never want to emit the 4250 // "editor placeholder in source file" error in PP only mode. 4251 if (isStrictlyPreprocessorAction(Action)) 4252 Opts.LexEditorPlaceholders = false; 4253 4254 return Diags.getNumErrors() == NumErrorsBefore; 4255 } 4256 4257 static void GeneratePreprocessorOutputArgs( 4258 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4259 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4260 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4261 4262 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4263 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4264 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4265 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4266 MERGER, EXTRACTOR, TABLE_INDEX) \ 4267 GENERATE_OPTION_WITH_MARSHALLING( \ 4268 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4269 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4270 #include "clang/Driver/Options.inc" 4271 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4272 4273 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4274 if (Generate_dM) 4275 GenerateArg(Args, OPT_dM, SA); 4276 if (!Generate_dM && Opts.ShowMacros) 4277 GenerateArg(Args, OPT_dD, SA); 4278 } 4279 4280 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4281 ArgList &Args, DiagnosticsEngine &Diags, 4282 frontend::ActionKind Action) { 4283 unsigned NumErrorsBefore = Diags.getNumErrors(); 4284 4285 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4286 4287 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4288 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4289 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4290 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4291 MERGER, EXTRACTOR, TABLE_INDEX) \ 4292 PARSE_OPTION_WITH_MARSHALLING( \ 4293 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4294 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4295 #include "clang/Driver/Options.inc" 4296 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4297 4298 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4299 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4300 4301 return Diags.getNumErrors() == NumErrorsBefore; 4302 } 4303 4304 static void GenerateTargetArgs(const TargetOptions &Opts, 4305 SmallVectorImpl<const char *> &Args, 4306 CompilerInvocation::StringAllocator SA) { 4307 const TargetOptions *TargetOpts = &Opts; 4308 #define TARGET_OPTION_WITH_MARSHALLING( \ 4309 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4310 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4311 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4312 MERGER, EXTRACTOR, TABLE_INDEX) \ 4313 GENERATE_OPTION_WITH_MARSHALLING( \ 4314 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4315 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4316 #include "clang/Driver/Options.inc" 4317 #undef TARGET_OPTION_WITH_MARSHALLING 4318 4319 if (!Opts.SDKVersion.empty()) 4320 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4321 SA); 4322 } 4323 4324 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4325 DiagnosticsEngine &Diags) { 4326 unsigned NumErrorsBefore = Diags.getNumErrors(); 4327 4328 TargetOptions *TargetOpts = &Opts; 4329 4330 #define TARGET_OPTION_WITH_MARSHALLING( \ 4331 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4332 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4333 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4334 MERGER, EXTRACTOR, TABLE_INDEX) \ 4335 PARSE_OPTION_WITH_MARSHALLING( \ 4336 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4337 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4338 #include "clang/Driver/Options.inc" 4339 #undef TARGET_OPTION_WITH_MARSHALLING 4340 4341 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4342 llvm::VersionTuple Version; 4343 if (Version.tryParse(A->getValue())) 4344 Diags.Report(diag::err_drv_invalid_value) 4345 << A->getAsString(Args) << A->getValue(); 4346 else 4347 Opts.SDKVersion = Version; 4348 } 4349 4350 return Diags.getNumErrors() == NumErrorsBefore; 4351 } 4352 4353 bool CompilerInvocation::CreateFromArgsImpl( 4354 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4355 DiagnosticsEngine &Diags, const char *Argv0) { 4356 unsigned NumErrorsBefore = Diags.getNumErrors(); 4357 4358 // Parse the arguments. 4359 const OptTable &Opts = getDriverOptTable(); 4360 const unsigned IncludedFlagsBitmask = options::CC1Option; 4361 unsigned MissingArgIndex, MissingArgCount; 4362 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4363 MissingArgCount, IncludedFlagsBitmask); 4364 LangOptions &LangOpts = *Res.getLangOpts(); 4365 4366 // Check for missing argument error. 4367 if (MissingArgCount) 4368 Diags.Report(diag::err_drv_missing_argument) 4369 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4370 4371 // Issue errors on unknown arguments. 4372 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4373 auto ArgString = A->getAsString(Args); 4374 std::string Nearest; 4375 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4376 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4377 else 4378 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4379 << ArgString << Nearest; 4380 } 4381 4382 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4383 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4384 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4385 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4386 /*DefaultDiagColor=*/false); 4387 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4388 // FIXME: We shouldn't have to pass the DashX option around here 4389 InputKind DashX = Res.getFrontendOpts().DashX; 4390 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4391 llvm::Triple T(Res.getTargetOpts().Triple); 4392 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4393 Res.getFileSystemOpts().WorkingDir); 4394 4395 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4396 Diags); 4397 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4398 LangOpts.ObjCExceptions = 1; 4399 4400 if (LangOpts.CUDA) { 4401 // During CUDA device-side compilation, the aux triple is the 4402 // triple used for host compilation. 4403 if (LangOpts.CUDAIsDevice) 4404 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4405 } 4406 4407 // Set the triple of the host for OpenMP device compile. 4408 if (LangOpts.OpenMPIsDevice) 4409 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4410 4411 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4412 Res.getFrontendOpts().OutputFile, LangOpts); 4413 4414 // FIXME: Override value name discarding when asan or msan is used because the 4415 // backend passes depend on the name of the alloca in order to print out 4416 // names. 4417 Res.getCodeGenOpts().DiscardValueNames &= 4418 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4419 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4420 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4421 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4422 4423 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4424 Res.getFrontendOpts().ProgramAction, 4425 Res.getFrontendOpts()); 4426 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4427 Res.getFrontendOpts().ProgramAction); 4428 4429 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4430 Res.getFrontendOpts().ProgramAction, 4431 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4432 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4433 Res.getDependencyOutputOpts().Targets.empty()) 4434 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4435 4436 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4437 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4438 !Res.getLangOpts()->Sanitize.empty()) { 4439 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4440 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4441 } 4442 4443 // Store the command-line for using in the CodeView backend. 4444 Res.getCodeGenOpts().Argv0 = Argv0; 4445 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs; 4446 4447 FixupInvocation(Res, Diags, Args, DashX); 4448 4449 return Diags.getNumErrors() == NumErrorsBefore; 4450 } 4451 4452 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4453 ArrayRef<const char *> CommandLineArgs, 4454 DiagnosticsEngine &Diags, 4455 const char *Argv0) { 4456 CompilerInvocation DummyInvocation; 4457 4458 return RoundTrip( 4459 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4460 DiagnosticsEngine &Diags, const char *Argv0) { 4461 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4462 }, 4463 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4464 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4465 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4466 } 4467 4468 std::string CompilerInvocation::getModuleHash() const { 4469 // Note: For QoI reasons, the things we use as a hash here should all be 4470 // dumped via the -module-info flag. 4471 using llvm::hash_code; 4472 using llvm::hash_value; 4473 using llvm::hash_combine; 4474 using llvm::hash_combine_range; 4475 4476 // Start the signature with the compiler version. 4477 // FIXME: We'd rather use something more cryptographically sound than 4478 // CityHash, but this will do for now. 4479 hash_code code = hash_value(getClangFullRepositoryVersion()); 4480 4481 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4482 // and getClangFullRepositoryVersion() doesn't include git revision. 4483 code = hash_combine(code, serialization::VERSION_MAJOR, 4484 serialization::VERSION_MINOR); 4485 4486 // Extend the signature with the language options 4487 #define LANGOPT(Name, Bits, Default, Description) \ 4488 code = hash_combine(code, LangOpts->Name); 4489 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4490 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 4491 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4492 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4493 #include "clang/Basic/LangOptions.def" 4494 4495 for (StringRef Feature : LangOpts->ModuleFeatures) 4496 code = hash_combine(code, Feature); 4497 4498 code = hash_combine(code, LangOpts->ObjCRuntime); 4499 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames; 4500 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end())); 4501 4502 // Extend the signature with the target options. 4503 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 4504 TargetOpts->TuneCPU, TargetOpts->ABI); 4505 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten) 4506 code = hash_combine(code, FeatureAsWritten); 4507 4508 // Extend the signature with preprocessor options. 4509 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4510 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4511 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 4512 4513 for (const auto &I : getPreprocessorOpts().Macros) { 4514 // If we're supposed to ignore this macro for the purposes of modules, 4515 // don't put it into the hash. 4516 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4517 // Check whether we're ignoring this macro. 4518 StringRef MacroDef = I.first; 4519 if (hsOpts.ModulesIgnoreMacros.count( 4520 llvm::CachedHashString(MacroDef.split('=').first))) 4521 continue; 4522 } 4523 4524 code = hash_combine(code, I.first, I.second); 4525 } 4526 4527 // Extend the signature with the sysroot and other header search options. 4528 code = hash_combine(code, hsOpts.Sysroot, 4529 hsOpts.ModuleFormat, 4530 hsOpts.UseDebugInfo, 4531 hsOpts.UseBuiltinIncludes, 4532 hsOpts.UseStandardSystemIncludes, 4533 hsOpts.UseStandardCXXIncludes, 4534 hsOpts.UseLibcxx, 4535 hsOpts.ModulesValidateDiagnosticOptions); 4536 code = hash_combine(code, hsOpts.ResourceDir); 4537 4538 if (hsOpts.ModulesStrictContextHash) { 4539 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(), 4540 hsOpts.SystemHeaderPrefixes.end()); 4541 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(), 4542 hsOpts.UserEntries.end()); 4543 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC, 4544 hsOpts.UserEntries.size(), UEC); 4545 4546 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4547 #define DIAGOPT(Name, Bits, Default) \ 4548 code = hash_combine(code, diagOpts.Name); 4549 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4550 code = hash_combine(code, diagOpts.get##Name()); 4551 #include "clang/Basic/DiagnosticOptions.def" 4552 #undef DIAGOPT 4553 #undef ENUM_DIAGOPT 4554 } 4555 4556 // Extend the signature with the user build path. 4557 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 4558 4559 // Extend the signature with the module file extensions. 4560 const FrontendOptions &frontendOpts = getFrontendOpts(); 4561 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 4562 code = ext->hashExtension(code); 4563 } 4564 4565 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4566 // affects the debug info in the PCM. 4567 if (getCodeGenOpts().DebugTypeExtRefs) 4568 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap) 4569 code = hash_combine(code, KeyValue.first, KeyValue.second); 4570 4571 // Extend the signature with the enabled sanitizers, if at least one is 4572 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4573 SanitizerSet SanHash = LangOpts->Sanitize; 4574 SanHash.clear(getPPTransparentSanitizers()); 4575 if (!SanHash.empty()) 4576 code = hash_combine(code, SanHash.Mask); 4577 4578 return toString(llvm::APInt(64, code), 36, /*Signed=*/false); 4579 } 4580 4581 void CompilerInvocation::generateCC1CommandLine( 4582 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4583 llvm::Triple T(TargetOpts->Triple); 4584 4585 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4586 GenerateMigratorArgs(MigratorOpts, Args, SA); 4587 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4588 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4589 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4590 GenerateTargetArgs(*TargetOpts, Args, SA); 4591 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4592 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4593 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4594 &*LangOpts); 4595 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4596 CodeGenOpts); 4597 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4598 FrontendOpts.ProgramAction); 4599 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4600 } 4601 4602 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4603 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4604 DiagnosticsEngine &Diags) { 4605 return createVFSFromCompilerInvocation(CI, Diags, 4606 llvm::vfs::getRealFileSystem()); 4607 } 4608 4609 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4610 clang::createVFSFromCompilerInvocation( 4611 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4612 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4613 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4614 return BaseFS; 4615 4616 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4617 // earlier vfs files are on the bottom 4618 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4619 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4620 Result->getBufferForFile(File); 4621 if (!Buffer) { 4622 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4623 continue; 4624 } 4625 4626 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4627 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4628 /*DiagContext*/ nullptr, Result); 4629 if (!FS) { 4630 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4631 continue; 4632 } 4633 4634 Result = FS; 4635 } 4636 return Result; 4637 } 4638