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/HashBuilder.h" 82 #include "llvm/Support/Host.h" 83 #include "llvm/Support/MathExtras.h" 84 #include "llvm/Support/MemoryBuffer.h" 85 #include "llvm/Support/Path.h" 86 #include "llvm/Support/Process.h" 87 #include "llvm/Support/Regex.h" 88 #include "llvm/Support/VersionTuple.h" 89 #include "llvm/Support/VirtualFileSystem.h" 90 #include "llvm/Support/raw_ostream.h" 91 #include "llvm/Target/TargetOptions.h" 92 #include <algorithm> 93 #include <atomic> 94 #include <cassert> 95 #include <cstddef> 96 #include <cstring> 97 #include <memory> 98 #include <string> 99 #include <tuple> 100 #include <type_traits> 101 #include <utility> 102 #include <vector> 103 104 using namespace clang; 105 using namespace driver; 106 using namespace options; 107 using namespace llvm::opt; 108 109 //===----------------------------------------------------------------------===// 110 // Initialization. 111 //===----------------------------------------------------------------------===// 112 113 CompilerInvocationRefBase::CompilerInvocationRefBase() 114 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 115 DiagnosticOpts(new DiagnosticOptions()), 116 HeaderSearchOpts(new HeaderSearchOptions()), 117 PreprocessorOpts(new PreprocessorOptions()), 118 AnalyzerOpts(new AnalyzerOptions()) {} 119 120 CompilerInvocationRefBase::CompilerInvocationRefBase( 121 const CompilerInvocationRefBase &X) 122 : LangOpts(new LangOptions(*X.getLangOpts())), 123 TargetOpts(new TargetOptions(X.getTargetOpts())), 124 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 125 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 126 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 127 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 128 129 CompilerInvocationRefBase::CompilerInvocationRefBase( 130 CompilerInvocationRefBase &&X) = default; 131 132 CompilerInvocationRefBase & 133 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 134 LangOpts.swap(X.LangOpts); 135 TargetOpts.swap(X.TargetOpts); 136 DiagnosticOpts.swap(X.DiagnosticOpts); 137 HeaderSearchOpts.swap(X.HeaderSearchOpts); 138 PreprocessorOpts.swap(X.PreprocessorOpts); 139 AnalyzerOpts.swap(X.AnalyzerOpts); 140 return *this; 141 } 142 143 CompilerInvocationRefBase & 144 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 145 146 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 147 148 //===----------------------------------------------------------------------===// 149 // Normalizers 150 //===----------------------------------------------------------------------===// 151 152 #define SIMPLE_ENUM_VALUE_TABLE 153 #include "clang/Driver/Options.inc" 154 #undef SIMPLE_ENUM_VALUE_TABLE 155 156 static llvm::Optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 157 unsigned TableIndex, 158 const ArgList &Args, 159 DiagnosticsEngine &Diags) { 160 if (Args.hasArg(Opt)) 161 return true; 162 return None; 163 } 164 165 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned, 166 const ArgList &Args, 167 DiagnosticsEngine &) { 168 if (Args.hasArg(Opt)) 169 return false; 170 return None; 171 } 172 173 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 174 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 175 /// unnecessary template instantiations and just ignore it with a variadic 176 /// argument. 177 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 178 const char *Spelling, 179 CompilerInvocation::StringAllocator, 180 Option::OptionClass, unsigned, /*T*/...) { 181 Args.push_back(Spelling); 182 } 183 184 template <typename T> static constexpr bool is_uint64_t_convertible() { 185 return !std::is_same<T, uint64_t>::value && 186 llvm::is_integral_or_enum<T>::value; 187 } 188 189 template <typename T, 190 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 191 static auto makeFlagToValueNormalizer(T Value) { 192 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 193 DiagnosticsEngine &) -> Optional<T> { 194 if (Args.hasArg(Opt)) 195 return Value; 196 return None; 197 }; 198 } 199 200 template <typename T, 201 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 202 static auto makeFlagToValueNormalizer(T Value) { 203 return makeFlagToValueNormalizer(uint64_t(Value)); 204 } 205 206 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 207 OptSpecifier OtherOpt) { 208 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned, 209 const ArgList &Args, 210 DiagnosticsEngine &) -> Optional<bool> { 211 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 212 return A->getOption().matches(Opt) ? Value : OtherValue; 213 } 214 return None; 215 }; 216 } 217 218 static auto makeBooleanOptionDenormalizer(bool Value) { 219 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 220 CompilerInvocation::StringAllocator, Option::OptionClass, 221 unsigned, bool KeyPath) { 222 if (KeyPath == Value) 223 Args.push_back(Spelling); 224 }; 225 } 226 227 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 228 const char *Spelling, 229 CompilerInvocation::StringAllocator SA, 230 Option::OptionClass OptClass, unsigned, 231 const Twine &Value) { 232 switch (OptClass) { 233 case Option::SeparateClass: 234 case Option::JoinedOrSeparateClass: 235 case Option::JoinedAndSeparateClass: 236 Args.push_back(Spelling); 237 Args.push_back(SA(Value)); 238 break; 239 case Option::JoinedClass: 240 case Option::CommaJoinedClass: 241 Args.push_back(SA(Twine(Spelling) + Value)); 242 break; 243 default: 244 llvm_unreachable("Cannot denormalize an option with option class " 245 "incompatible with string denormalization."); 246 } 247 } 248 249 template <typename T> 250 static void 251 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 252 CompilerInvocation::StringAllocator SA, 253 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 254 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 255 } 256 257 static Optional<SimpleEnumValue> 258 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 259 for (int I = 0, E = Table.Size; I != E; ++I) 260 if (Name == Table.Table[I].Name) 261 return Table.Table[I]; 262 263 return None; 264 } 265 266 static Optional<SimpleEnumValue> 267 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 268 for (int I = 0, E = Table.Size; I != E; ++I) 269 if (Value == Table.Table[I].Value) 270 return Table.Table[I]; 271 272 return None; 273 } 274 275 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 276 unsigned TableIndex, 277 const ArgList &Args, 278 DiagnosticsEngine &Diags) { 279 assert(TableIndex < SimpleEnumValueTablesSize); 280 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 281 282 auto *Arg = Args.getLastArg(Opt); 283 if (!Arg) 284 return None; 285 286 StringRef ArgValue = Arg->getValue(); 287 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 288 return MaybeEnumVal->Value; 289 290 Diags.Report(diag::err_drv_invalid_value) 291 << Arg->getAsString(Args) << ArgValue; 292 return None; 293 } 294 295 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 296 const char *Spelling, 297 CompilerInvocation::StringAllocator SA, 298 Option::OptionClass OptClass, 299 unsigned TableIndex, unsigned Value) { 300 assert(TableIndex < SimpleEnumValueTablesSize); 301 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 302 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 303 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 304 MaybeEnumVal->Name); 305 } else { 306 llvm_unreachable("The simple enum value was not correctly defined in " 307 "the tablegen option description"); 308 } 309 } 310 311 template <typename T> 312 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 313 const char *Spelling, 314 CompilerInvocation::StringAllocator SA, 315 Option::OptionClass OptClass, 316 unsigned TableIndex, T Value) { 317 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 318 static_cast<unsigned>(Value)); 319 } 320 321 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex, 322 const ArgList &Args, 323 DiagnosticsEngine &Diags) { 324 auto *Arg = Args.getLastArg(Opt); 325 if (!Arg) 326 return None; 327 return std::string(Arg->getValue()); 328 } 329 330 template <typename IntTy> 331 static Optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 332 const ArgList &Args, 333 DiagnosticsEngine &Diags) { 334 auto *Arg = Args.getLastArg(Opt); 335 if (!Arg) 336 return None; 337 IntTy Res; 338 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 339 Diags.Report(diag::err_drv_invalid_int_value) 340 << Arg->getAsString(Args) << Arg->getValue(); 341 return None; 342 } 343 return Res; 344 } 345 346 static Optional<std::vector<std::string>> 347 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 348 DiagnosticsEngine &) { 349 return Args.getAllArgValues(Opt); 350 } 351 352 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 353 const char *Spelling, 354 CompilerInvocation::StringAllocator SA, 355 Option::OptionClass OptClass, 356 unsigned TableIndex, 357 const std::vector<std::string> &Values) { 358 switch (OptClass) { 359 case Option::CommaJoinedClass: { 360 std::string CommaJoinedValue; 361 if (!Values.empty()) { 362 CommaJoinedValue.append(Values.front()); 363 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 364 CommaJoinedValue.append(","); 365 CommaJoinedValue.append(Value); 366 } 367 } 368 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 369 TableIndex, CommaJoinedValue); 370 break; 371 } 372 case Option::JoinedClass: 373 case Option::SeparateClass: 374 case Option::JoinedOrSeparateClass: 375 for (const std::string &Value : Values) 376 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 377 break; 378 default: 379 llvm_unreachable("Cannot denormalize an option with option class " 380 "incompatible with string vector denormalization."); 381 } 382 } 383 384 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex, 385 const ArgList &Args, 386 DiagnosticsEngine &Diags) { 387 auto *Arg = Args.getLastArg(Opt); 388 if (!Arg) 389 return None; 390 return llvm::Triple::normalize(Arg->getValue()); 391 } 392 393 template <typename T, typename U> 394 static T mergeForwardValue(T KeyPath, U Value) { 395 return static_cast<T>(Value); 396 } 397 398 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 399 return KeyPath | Value; 400 } 401 402 template <typename T> static T extractForwardValue(T KeyPath) { 403 return KeyPath; 404 } 405 406 template <typename T, typename U, U Value> 407 static T extractMaskValue(T KeyPath) { 408 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 409 } 410 411 #define PARSE_OPTION_WITH_MARSHALLING( \ 412 ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 413 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) \ 414 if ((FLAGS)&options::CC1Option) { \ 415 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 416 if (IMPLIED_CHECK) \ 417 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 418 if (SHOULD_PARSE) \ 419 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 420 KEYPATH = \ 421 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 422 } 423 424 // Capture the extracted value as a lambda argument to avoid potential issues 425 // with lifetime extension of the reference. 426 #define GENERATE_OPTION_WITH_MARSHALLING( \ 427 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 428 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 429 TABLE_INDEX) \ 430 if ((FLAGS)&options::CC1Option) { \ 431 [&](const auto &Extracted) { \ 432 if (ALWAYS_EMIT || \ 433 (Extracted != \ 434 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 435 : (DEFAULT_VALUE)))) \ 436 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 437 TABLE_INDEX, Extracted); \ 438 }(EXTRACTOR(KEYPATH)); \ 439 } 440 441 static StringRef GetInputKindName(InputKind IK); 442 443 static bool FixupInvocation(CompilerInvocation &Invocation, 444 DiagnosticsEngine &Diags, const ArgList &Args, 445 InputKind IK) { 446 unsigned NumErrorsBefore = Diags.getNumErrors(); 447 448 LangOptions &LangOpts = *Invocation.getLangOpts(); 449 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 450 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 451 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 452 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 453 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 454 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 455 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 456 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 457 if (FrontendOpts.ShowStats) 458 CodeGenOpts.ClearASTBeforeBackend = false; 459 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 460 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 461 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 462 LangOpts.CurrentModule = LangOpts.ModuleName; 463 464 llvm::Triple T(TargetOpts.Triple); 465 llvm::Triple::ArchType Arch = T.getArch(); 466 467 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 468 469 if (LangOpts.getExceptionHandling() != 470 LangOptions::ExceptionHandlingKind::None && 471 T.isWindowsMSVCEnvironment()) 472 Diags.Report(diag::err_fe_invalid_exception_model) 473 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 474 475 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 476 Diags.Report(diag::warn_c_kext); 477 478 if (Args.hasArg(OPT_fconcepts_ts)) 479 Diags.Report(diag::warn_fe_concepts_ts_flag); 480 481 if (LangOpts.NewAlignOverride && 482 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 483 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 484 Diags.Report(diag::err_fe_invalid_alignment) 485 << A->getAsString(Args) << A->getValue(); 486 LangOpts.NewAlignOverride = 0; 487 } 488 489 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 490 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 491 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 492 << "-fsycl-is-host"; 493 494 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 495 Diags.Report(diag::err_drv_argument_not_allowed_with) 496 << "-fgnu89-inline" << GetInputKindName(IK); 497 498 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 499 Diags.Report(diag::warn_ignored_hip_only_option) 500 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 501 502 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 503 Diags.Report(diag::warn_ignored_hip_only_option) 504 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 505 506 // When these options are used, the compiler is allowed to apply 507 // optimizations that may affect the final result. For example 508 // (x+y)+z is transformed to x+(y+z) but may not give the same 509 // final result; it's not value safe. 510 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF 511 // or NaN. Final result may then differ. An error is issued when the eval 512 // method is set with one of these options. 513 if (Args.hasArg(OPT_ffp_eval_method_EQ)) { 514 if (LangOpts.ApproxFunc) 515 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 0; 516 if (LangOpts.AllowFPReassoc) 517 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 1; 518 if (LangOpts.AllowRecip) 519 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 2; 520 } 521 522 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 523 // This option should be deprecated for CL > 1.0 because 524 // this option was added for compatibility with OpenCL 1.0. 525 if (Args.getLastArg(OPT_cl_strict_aliasing) && 526 (LangOpts.getOpenCLCompatibleVersion() > 100)) 527 Diags.Report(diag::warn_option_invalid_ocl_version) 528 << LangOpts.getOpenCLVersionString() 529 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 530 531 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 532 auto DefaultCC = LangOpts.getDefaultCallingConv(); 533 534 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 535 DefaultCC == LangOptions::DCC_StdCall) && 536 Arch != llvm::Triple::x86; 537 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 538 DefaultCC == LangOptions::DCC_RegCall) && 539 !T.isX86(); 540 if (emitError) 541 Diags.Report(diag::err_drv_argument_not_allowed_with) 542 << A->getSpelling() << T.getTriple(); 543 } 544 545 if (!CodeGenOpts.ProfileRemappingFile.empty() && CodeGenOpts.LegacyPassManager) 546 Diags.Report(diag::err_drv_argument_only_allowed_with) 547 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args) 548 << "-fno-legacy-pass-manager"; 549 550 return Diags.getNumErrors() == NumErrorsBefore; 551 } 552 553 //===----------------------------------------------------------------------===// 554 // Deserialization (from args) 555 //===----------------------------------------------------------------------===// 556 557 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 558 DiagnosticsEngine &Diags) { 559 unsigned DefaultOpt = llvm::CodeGenOpt::None; 560 if ((IK.getLanguage() == Language::OpenCL || 561 IK.getLanguage() == Language::OpenCLCXX) && 562 !Args.hasArg(OPT_cl_opt_disable)) 563 DefaultOpt = llvm::CodeGenOpt::Default; 564 565 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 566 if (A->getOption().matches(options::OPT_O0)) 567 return llvm::CodeGenOpt::None; 568 569 if (A->getOption().matches(options::OPT_Ofast)) 570 return llvm::CodeGenOpt::Aggressive; 571 572 assert(A->getOption().matches(options::OPT_O)); 573 574 StringRef S(A->getValue()); 575 if (S == "s" || S == "z") 576 return llvm::CodeGenOpt::Default; 577 578 if (S == "g") 579 return llvm::CodeGenOpt::Less; 580 581 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 582 } 583 584 return DefaultOpt; 585 } 586 587 static unsigned getOptimizationLevelSize(ArgList &Args) { 588 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 589 if (A->getOption().matches(options::OPT_O)) { 590 switch (A->getValue()[0]) { 591 default: 592 return 0; 593 case 's': 594 return 1; 595 case 'z': 596 return 2; 597 } 598 } 599 } 600 return 0; 601 } 602 603 static void GenerateArg(SmallVectorImpl<const char *> &Args, 604 llvm::opt::OptSpecifier OptSpecifier, 605 CompilerInvocation::StringAllocator SA) { 606 Option Opt = getDriverOptTable().getOption(OptSpecifier); 607 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 608 Option::OptionClass::FlagClass, 0); 609 } 610 611 static void GenerateArg(SmallVectorImpl<const char *> &Args, 612 llvm::opt::OptSpecifier OptSpecifier, 613 const Twine &Value, 614 CompilerInvocation::StringAllocator SA) { 615 Option Opt = getDriverOptTable().getOption(OptSpecifier); 616 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 617 Opt.getKind(), 0, Value); 618 } 619 620 // Parse command line arguments into CompilerInvocation. 621 using ParseFn = 622 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 623 DiagnosticsEngine &, const char *)>; 624 625 // Generate command line arguments from CompilerInvocation. 626 using GenerateFn = llvm::function_ref<void( 627 CompilerInvocation &, SmallVectorImpl<const char *> &, 628 CompilerInvocation::StringAllocator)>; 629 630 // May perform round-trip of command line arguments. By default, the round-trip 631 // is enabled in assert builds. This can be overwritten at run-time via the 632 // "-round-trip-args" and "-no-round-trip-args" command line flags. 633 // During round-trip, the command line arguments are parsed into a dummy 634 // instance of CompilerInvocation which is used to generate the command line 635 // arguments again. The real CompilerInvocation instance is then created by 636 // parsing the generated arguments, not the original ones. 637 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 638 CompilerInvocation &RealInvocation, 639 CompilerInvocation &DummyInvocation, 640 ArrayRef<const char *> CommandLineArgs, 641 DiagnosticsEngine &Diags, const char *Argv0) { 642 #ifndef NDEBUG 643 bool DoRoundTripDefault = true; 644 #else 645 bool DoRoundTripDefault = false; 646 #endif 647 648 bool DoRoundTrip = DoRoundTripDefault; 649 for (const auto *Arg : CommandLineArgs) { 650 if (Arg == StringRef("-round-trip-args")) 651 DoRoundTrip = true; 652 if (Arg == StringRef("-no-round-trip-args")) 653 DoRoundTrip = false; 654 } 655 656 // If round-trip was not requested, simply run the parser with the real 657 // invocation diagnostics. 658 if (!DoRoundTrip) 659 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 660 661 // Serializes quoted (and potentially escaped) arguments. 662 auto SerializeArgs = [](ArrayRef<const char *> Args) { 663 std::string Buffer; 664 llvm::raw_string_ostream OS(Buffer); 665 for (const char *Arg : Args) { 666 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 667 OS << ' '; 668 } 669 OS.flush(); 670 return Buffer; 671 }; 672 673 // Setup a dummy DiagnosticsEngine. 674 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 675 DummyDiags.setClient(new TextDiagnosticBuffer()); 676 677 // Run the first parse on the original arguments with the dummy invocation and 678 // diagnostics. 679 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 680 DummyDiags.getNumWarnings() != 0) { 681 // If the first parse did not succeed, it must be user mistake (invalid 682 // command line arguments). We won't be able to generate arguments that 683 // would reproduce the same result. Let's fail again with the real 684 // invocation and diagnostics, so all side-effects of parsing are visible. 685 unsigned NumWarningsBefore = Diags.getNumWarnings(); 686 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 687 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 688 return Success; 689 690 // Parse with original options and diagnostics succeeded even though it 691 // shouldn't have. Something is off. 692 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 693 Diags.Report(diag::note_cc1_round_trip_original) 694 << SerializeArgs(CommandLineArgs); 695 return false; 696 } 697 698 // Setup string allocator. 699 llvm::BumpPtrAllocator Alloc; 700 llvm::StringSaver StringPool(Alloc); 701 auto SA = [&StringPool](const Twine &Arg) { 702 return StringPool.save(Arg).data(); 703 }; 704 705 // Generate arguments from the dummy invocation. If Generate is the 706 // inverse of Parse, the newly generated arguments must have the same 707 // semantics as the original. 708 SmallVector<const char *> GeneratedArgs1; 709 Generate(DummyInvocation, GeneratedArgs1, SA); 710 711 // Run the second parse, now on the generated arguments, and with the real 712 // invocation and diagnostics. The result is what we will end up using for the 713 // rest of compilation, so if Generate is not inverse of Parse, something down 714 // the line will break. 715 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0); 716 717 // The first parse on original arguments succeeded, but second parse of 718 // generated arguments failed. Something must be wrong with the generator. 719 if (!Success2) { 720 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 721 Diags.Report(diag::note_cc1_round_trip_generated) 722 << 1 << SerializeArgs(GeneratedArgs1); 723 return false; 724 } 725 726 // Generate arguments again, this time from the options we will end up using 727 // for the rest of the compilation. 728 SmallVector<const char *> GeneratedArgs2; 729 Generate(RealInvocation, GeneratedArgs2, SA); 730 731 // Compares two lists of generated arguments. 732 auto Equal = [](const ArrayRef<const char *> A, 733 const ArrayRef<const char *> B) { 734 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 735 [](const char *AElem, const char *BElem) { 736 return StringRef(AElem) == StringRef(BElem); 737 }); 738 }; 739 740 // If we generated different arguments from what we assume are two 741 // semantically equivalent CompilerInvocations, the Generate function may 742 // be non-deterministic. 743 if (!Equal(GeneratedArgs1, GeneratedArgs2)) { 744 Diags.Report(diag::err_cc1_round_trip_mismatch); 745 Diags.Report(diag::note_cc1_round_trip_generated) 746 << 1 << SerializeArgs(GeneratedArgs1); 747 Diags.Report(diag::note_cc1_round_trip_generated) 748 << 2 << SerializeArgs(GeneratedArgs2); 749 return false; 750 } 751 752 Diags.Report(diag::remark_cc1_round_trip_generated) 753 << 1 << SerializeArgs(GeneratedArgs1); 754 Diags.Report(diag::remark_cc1_round_trip_generated) 755 << 2 << SerializeArgs(GeneratedArgs2); 756 757 return Success2; 758 } 759 760 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 761 OptSpecifier GroupWithValue, 762 std::vector<std::string> &Diagnostics) { 763 for (auto *A : Args.filtered(Group)) { 764 if (A->getOption().getKind() == Option::FlagClass) { 765 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 766 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 767 Diagnostics.push_back( 768 std::string(A->getOption().getName().drop_front(1))); 769 } else if (A->getOption().matches(GroupWithValue)) { 770 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 771 // group. Add only the group name to the diagnostics. 772 Diagnostics.push_back( 773 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 774 } else { 775 // Otherwise, add its value (for OPT_W_Joined and similar). 776 Diagnostics.push_back(A->getValue()); 777 } 778 } 779 } 780 781 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 782 // it won't verify the input. 783 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 784 DiagnosticsEngine *Diags); 785 786 static void getAllNoBuiltinFuncValues(ArgList &Args, 787 std::vector<std::string> &Funcs) { 788 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 789 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 790 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 791 } 792 793 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 794 SmallVectorImpl<const char *> &Args, 795 CompilerInvocation::StringAllocator SA) { 796 const AnalyzerOptions *AnalyzerOpts = &Opts; 797 798 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 799 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 800 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 801 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 802 MERGER, EXTRACTOR, TABLE_INDEX) \ 803 GENERATE_OPTION_WITH_MARSHALLING( \ 804 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 805 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 806 #include "clang/Driver/Options.inc" 807 #undef ANALYZER_OPTION_WITH_MARSHALLING 808 809 if (Opts.AnalysisStoreOpt != RegionStoreModel) { 810 switch (Opts.AnalysisStoreOpt) { 811 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 812 case NAME##Model: \ 813 GenerateArg(Args, OPT_analyzer_store, CMDFLAG, SA); \ 814 break; 815 #include "clang/StaticAnalyzer/Core/Analyses.def" 816 default: 817 llvm_unreachable("Tried to generate unknown analysis store."); 818 } 819 } 820 821 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 822 switch (Opts.AnalysisConstraintsOpt) { 823 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 824 case NAME##Model: \ 825 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 826 break; 827 #include "clang/StaticAnalyzer/Core/Analyses.def" 828 default: 829 llvm_unreachable("Tried to generate unknown analysis constraint."); 830 } 831 } 832 833 if (Opts.AnalysisDiagOpt != PD_HTML) { 834 switch (Opts.AnalysisDiagOpt) { 835 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 836 case PD_##NAME: \ 837 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 838 break; 839 #include "clang/StaticAnalyzer/Core/Analyses.def" 840 default: 841 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 842 } 843 } 844 845 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 846 switch (Opts.AnalysisPurgeOpt) { 847 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 848 case NAME: \ 849 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 850 break; 851 #include "clang/StaticAnalyzer/Core/Analyses.def" 852 default: 853 llvm_unreachable("Tried to generate unknown analysis purge mode."); 854 } 855 } 856 857 if (Opts.InliningMode != NoRedundancy) { 858 switch (Opts.InliningMode) { 859 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 860 case NAME: \ 861 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 862 break; 863 #include "clang/StaticAnalyzer/Core/Analyses.def" 864 default: 865 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 866 } 867 } 868 869 for (const auto &CP : Opts.CheckersAndPackages) { 870 OptSpecifier Opt = 871 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 872 GenerateArg(Args, Opt, CP.first, SA); 873 } 874 875 AnalyzerOptions ConfigOpts; 876 parseAnalyzerConfigs(ConfigOpts, nullptr); 877 878 for (const auto &C : Opts.Config) { 879 // Don't generate anything that came from parseAnalyzerConfigs. It would be 880 // redundant and may not be valid on the command line. 881 auto Entry = ConfigOpts.Config.find(C.getKey()); 882 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue()) 883 continue; 884 885 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA); 886 } 887 888 // Nothing to generate for FullCompilerInvocation. 889 } 890 891 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 892 DiagnosticsEngine &Diags) { 893 unsigned NumErrorsBefore = Diags.getNumErrors(); 894 895 AnalyzerOptions *AnalyzerOpts = &Opts; 896 897 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 898 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 899 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 900 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 901 MERGER, EXTRACTOR, TABLE_INDEX) \ 902 PARSE_OPTION_WITH_MARSHALLING( \ 903 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 904 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 905 #include "clang/Driver/Options.inc" 906 #undef ANALYZER_OPTION_WITH_MARSHALLING 907 908 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 909 StringRef Name = A->getValue(); 910 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 911 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 912 .Case(CMDFLAG, NAME##Model) 913 #include "clang/StaticAnalyzer/Core/Analyses.def" 914 .Default(NumStores); 915 if (Value == NumStores) { 916 Diags.Report(diag::err_drv_invalid_value) 917 << A->getAsString(Args) << Name; 918 } else { 919 Opts.AnalysisStoreOpt = Value; 920 } 921 } 922 923 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 924 StringRef Name = A->getValue(); 925 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 926 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 927 .Case(CMDFLAG, NAME##Model) 928 #include "clang/StaticAnalyzer/Core/Analyses.def" 929 .Default(NumConstraints); 930 if (Value == NumConstraints) { 931 Diags.Report(diag::err_drv_invalid_value) 932 << A->getAsString(Args) << Name; 933 } else { 934 #ifndef LLVM_WITH_Z3 935 if (Value == AnalysisConstraints::Z3ConstraintsModel) { 936 Diags.Report(diag::err_analyzer_not_built_with_z3); 937 } 938 #endif // LLVM_WITH_Z3 939 Opts.AnalysisConstraintsOpt = Value; 940 } 941 } 942 943 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 944 StringRef Name = A->getValue(); 945 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 946 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 947 .Case(CMDFLAG, PD_##NAME) 948 #include "clang/StaticAnalyzer/Core/Analyses.def" 949 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 950 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 951 Diags.Report(diag::err_drv_invalid_value) 952 << A->getAsString(Args) << Name; 953 } else { 954 Opts.AnalysisDiagOpt = Value; 955 } 956 } 957 958 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 959 StringRef Name = A->getValue(); 960 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 961 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 962 .Case(CMDFLAG, NAME) 963 #include "clang/StaticAnalyzer/Core/Analyses.def" 964 .Default(NumPurgeModes); 965 if (Value == NumPurgeModes) { 966 Diags.Report(diag::err_drv_invalid_value) 967 << A->getAsString(Args) << Name; 968 } else { 969 Opts.AnalysisPurgeOpt = Value; 970 } 971 } 972 973 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 974 StringRef Name = A->getValue(); 975 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 976 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 977 .Case(CMDFLAG, NAME) 978 #include "clang/StaticAnalyzer/Core/Analyses.def" 979 .Default(NumInliningModes); 980 if (Value == NumInliningModes) { 981 Diags.Report(diag::err_drv_invalid_value) 982 << A->getAsString(Args) << Name; 983 } else { 984 Opts.InliningMode = Value; 985 } 986 } 987 988 Opts.CheckersAndPackages.clear(); 989 for (const Arg *A : 990 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 991 A->claim(); 992 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 993 // We can have a list of comma separated checker names, e.g: 994 // '-analyzer-checker=cocoa,unix' 995 StringRef CheckerAndPackageList = A->getValue(); 996 SmallVector<StringRef, 16> CheckersAndPackages; 997 CheckerAndPackageList.split(CheckersAndPackages, ","); 998 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 999 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 1000 IsEnabled); 1001 } 1002 1003 // Go through the analyzer configuration options. 1004 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 1005 1006 // We can have a list of comma separated config names, e.g: 1007 // '-analyzer-config key1=val1,key2=val2' 1008 StringRef configList = A->getValue(); 1009 SmallVector<StringRef, 4> configVals; 1010 configList.split(configVals, ","); 1011 for (const auto &configVal : configVals) { 1012 StringRef key, val; 1013 std::tie(key, val) = configVal.split("="); 1014 if (val.empty()) { 1015 Diags.Report(SourceLocation(), 1016 diag::err_analyzer_config_no_value) << configVal; 1017 break; 1018 } 1019 if (val.contains('=')) { 1020 Diags.Report(SourceLocation(), 1021 diag::err_analyzer_config_multiple_values) 1022 << configVal; 1023 break; 1024 } 1025 1026 // TODO: Check checker options too, possibly in CheckerRegistry. 1027 // Leave unknown non-checker configs unclaimed. 1028 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1029 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1030 Diags.Report(diag::err_analyzer_config_unknown) << key; 1031 continue; 1032 } 1033 1034 A->claim(); 1035 Opts.Config[key] = std::string(val); 1036 } 1037 } 1038 1039 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1040 parseAnalyzerConfigs(Opts, &Diags); 1041 else 1042 parseAnalyzerConfigs(Opts, nullptr); 1043 1044 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1045 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1046 if (i != 0) 1047 os << " "; 1048 os << Args.getArgString(i); 1049 } 1050 os.flush(); 1051 1052 return Diags.getNumErrors() == NumErrorsBefore; 1053 } 1054 1055 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1056 StringRef OptionName, StringRef DefaultVal) { 1057 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1058 } 1059 1060 static void initOption(AnalyzerOptions::ConfigTable &Config, 1061 DiagnosticsEngine *Diags, 1062 StringRef &OptionField, StringRef Name, 1063 StringRef DefaultVal) { 1064 // String options may be known to invalid (e.g. if the expected string is a 1065 // file name, but the file does not exist), those will have to be checked in 1066 // parseConfigs. 1067 OptionField = getStringOption(Config, Name, DefaultVal); 1068 } 1069 1070 static void initOption(AnalyzerOptions::ConfigTable &Config, 1071 DiagnosticsEngine *Diags, 1072 bool &OptionField, StringRef Name, bool DefaultVal) { 1073 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>( 1074 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1075 .Case("true", true) 1076 .Case("false", false) 1077 .Default(None); 1078 1079 if (!PossiblyInvalidVal) { 1080 if (Diags) 1081 Diags->Report(diag::err_analyzer_config_invalid_input) 1082 << Name << "a boolean"; 1083 else 1084 OptionField = DefaultVal; 1085 } else 1086 OptionField = PossiblyInvalidVal.getValue(); 1087 } 1088 1089 static void initOption(AnalyzerOptions::ConfigTable &Config, 1090 DiagnosticsEngine *Diags, 1091 unsigned &OptionField, StringRef Name, 1092 unsigned DefaultVal) { 1093 1094 OptionField = DefaultVal; 1095 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1096 .getAsInteger(0, OptionField); 1097 if (Diags && HasFailed) 1098 Diags->Report(diag::err_analyzer_config_invalid_input) 1099 << Name << "an unsigned"; 1100 } 1101 1102 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1103 DiagnosticsEngine *Diags) { 1104 // TODO: There's no need to store the entire configtable, it'd be plenty 1105 // enough tostore checker options. 1106 1107 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1108 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1109 1110 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1111 SHALLOW_VAL, DEEP_VAL) \ 1112 switch (AnOpts.getUserMode()) { \ 1113 case UMK_Shallow: \ 1114 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \ 1115 break; \ 1116 case UMK_Deep: \ 1117 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \ 1118 break; \ 1119 } \ 1120 1121 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1122 #undef ANALYZER_OPTION 1123 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE 1124 1125 // At this point, AnalyzerOptions is configured. Let's validate some options. 1126 1127 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1128 // The current approach only validates the registered checkers which does not 1129 // contain the runtime enabled checkers and optimally we would validate both. 1130 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1131 std::vector<StringRef> Checkers = 1132 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1133 std::vector<StringRef> Packages = 1134 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1135 1136 SmallVector<StringRef, 16> CheckersAndPackages; 1137 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1138 1139 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1140 if (Diags) { 1141 bool IsChecker = CheckerOrPackage.contains('.'); 1142 bool IsValidName = IsChecker 1143 ? llvm::is_contained(Checkers, CheckerOrPackage) 1144 : llvm::is_contained(Packages, CheckerOrPackage); 1145 1146 if (!IsValidName) 1147 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1148 << CheckerOrPackage; 1149 } 1150 1151 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1152 } 1153 } 1154 1155 if (!Diags) 1156 return; 1157 1158 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1159 Diags->Report(diag::err_analyzer_config_invalid_input) 1160 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1161 1162 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1163 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1164 << "a filename"; 1165 1166 if (!AnOpts.ModelPath.empty() && 1167 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1168 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1169 << "a filename"; 1170 } 1171 1172 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1173 static void 1174 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1175 CompilerInvocation::StringAllocator SA, 1176 OptSpecifier OptEQ, StringRef Name, 1177 const CodeGenOptions::OptRemark &Remark) { 1178 if (Remark.hasValidPattern()) { 1179 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1180 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1181 GenerateArg(Args, OPT_R_Joined, Name, SA); 1182 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1183 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1184 } 1185 } 1186 1187 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1188 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1189 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1190 static CodeGenOptions::OptRemark 1191 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1192 OptSpecifier OptEQ, StringRef Name) { 1193 CodeGenOptions::OptRemark Result; 1194 1195 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1196 StringRef Pattern) { 1197 Result.Pattern = Pattern.str(); 1198 1199 std::string RegexError; 1200 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1201 if (!Result.Regex->isValid(RegexError)) { 1202 Diags.Report(diag::err_drv_optimization_remark_pattern) 1203 << RegexError << A->getAsString(Args); 1204 return false; 1205 } 1206 1207 return true; 1208 }; 1209 1210 for (Arg *A : Args) { 1211 if (A->getOption().matches(OPT_R_Joined)) { 1212 StringRef Value = A->getValue(); 1213 1214 if (Value == Name) 1215 Result.Kind = CodeGenOptions::RK_Enabled; 1216 else if (Value == "everything") 1217 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1218 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1219 Result.Kind = CodeGenOptions::RK_Disabled; 1220 else if (Value == "no-everything") 1221 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1222 else 1223 continue; 1224 1225 if (Result.Kind == CodeGenOptions::RK_Disabled || 1226 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1227 Result.Pattern = ""; 1228 Result.Regex = nullptr; 1229 } else { 1230 InitializeResultPattern(A, ".*"); 1231 } 1232 } else if (A->getOption().matches(OptEQ)) { 1233 Result.Kind = CodeGenOptions::RK_WithPattern; 1234 if (!InitializeResultPattern(A, A->getValue())) 1235 return CodeGenOptions::OptRemark(); 1236 } 1237 } 1238 1239 return Result; 1240 } 1241 1242 static bool parseDiagnosticLevelMask(StringRef FlagName, 1243 const std::vector<std::string> &Levels, 1244 DiagnosticsEngine &Diags, 1245 DiagnosticLevelMask &M) { 1246 bool Success = true; 1247 for (const auto &Level : Levels) { 1248 DiagnosticLevelMask const PM = 1249 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1250 .Case("note", DiagnosticLevelMask::Note) 1251 .Case("remark", DiagnosticLevelMask::Remark) 1252 .Case("warning", DiagnosticLevelMask::Warning) 1253 .Case("error", DiagnosticLevelMask::Error) 1254 .Default(DiagnosticLevelMask::None); 1255 if (PM == DiagnosticLevelMask::None) { 1256 Success = false; 1257 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1258 } 1259 M = M | PM; 1260 } 1261 return Success; 1262 } 1263 1264 static void parseSanitizerKinds(StringRef FlagName, 1265 const std::vector<std::string> &Sanitizers, 1266 DiagnosticsEngine &Diags, SanitizerSet &S) { 1267 for (const auto &Sanitizer : Sanitizers) { 1268 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1269 if (K == SanitizerMask()) 1270 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1271 else 1272 S.set(K, true); 1273 } 1274 } 1275 1276 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1277 SmallVector<StringRef, 4> Values; 1278 serializeSanitizerSet(S, Values); 1279 return Values; 1280 } 1281 1282 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1283 ArgList &Args, DiagnosticsEngine &D, 1284 XRayInstrSet &S) { 1285 llvm::SmallVector<StringRef, 2> BundleParts; 1286 llvm::SplitString(Bundle, BundleParts, ","); 1287 for (const auto &B : BundleParts) { 1288 auto Mask = parseXRayInstrValue(B); 1289 if (Mask == XRayInstrKind::None) 1290 if (B != "none") 1291 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1292 else 1293 S.Mask = Mask; 1294 else if (Mask == XRayInstrKind::All) 1295 S.Mask = Mask; 1296 else 1297 S.set(Mask, true); 1298 } 1299 } 1300 1301 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1302 llvm::SmallVector<StringRef, 2> BundleParts; 1303 serializeXRayInstrValue(S, BundleParts); 1304 std::string Buffer; 1305 llvm::raw_string_ostream OS(Buffer); 1306 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1307 return Buffer; 1308 } 1309 1310 // Set the profile kind using fprofile-instrument-use-path. 1311 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1312 const Twine &ProfileName) { 1313 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 1314 // In error, return silently and let Clang PGOUse report the error message. 1315 if (auto E = ReaderOrErr.takeError()) { 1316 llvm::consumeError(std::move(E)); 1317 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1318 return; 1319 } 1320 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1321 std::move(ReaderOrErr.get()); 1322 if (PGOReader->isIRLevelProfile()) { 1323 if (PGOReader->hasCSIRLevelProfile()) 1324 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1325 else 1326 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1327 } else 1328 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1329 } 1330 1331 void CompilerInvocation::GenerateCodeGenArgs( 1332 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1333 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1334 const LangOptions *LangOpts) { 1335 const CodeGenOptions &CodeGenOpts = Opts; 1336 1337 if (Opts.OptimizationLevel == 0) 1338 GenerateArg(Args, OPT_O0, SA); 1339 else 1340 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1341 1342 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1343 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1344 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1345 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1346 MERGER, EXTRACTOR, TABLE_INDEX) \ 1347 GENERATE_OPTION_WITH_MARSHALLING( \ 1348 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1349 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1350 #include "clang/Driver/Options.inc" 1351 #undef CODEGEN_OPTION_WITH_MARSHALLING 1352 1353 if (Opts.OptimizationLevel > 0) { 1354 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1355 GenerateArg(Args, OPT_finline_functions, SA); 1356 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1357 GenerateArg(Args, OPT_finline_hint_functions, SA); 1358 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1359 GenerateArg(Args, OPT_fno_inline, SA); 1360 } 1361 1362 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1363 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1364 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1365 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1366 1367 Optional<StringRef> DebugInfoVal; 1368 switch (Opts.DebugInfo) { 1369 case codegenoptions::DebugLineTablesOnly: 1370 DebugInfoVal = "line-tables-only"; 1371 break; 1372 case codegenoptions::DebugDirectivesOnly: 1373 DebugInfoVal = "line-directives-only"; 1374 break; 1375 case codegenoptions::DebugInfoConstructor: 1376 DebugInfoVal = "constructor"; 1377 break; 1378 case codegenoptions::LimitedDebugInfo: 1379 DebugInfoVal = "limited"; 1380 break; 1381 case codegenoptions::FullDebugInfo: 1382 DebugInfoVal = "standalone"; 1383 break; 1384 case codegenoptions::UnusedTypeInfo: 1385 DebugInfoVal = "unused-types"; 1386 break; 1387 case codegenoptions::NoDebugInfo: // default value 1388 DebugInfoVal = None; 1389 break; 1390 case codegenoptions::LocTrackingOnly: // implied value 1391 DebugInfoVal = None; 1392 break; 1393 } 1394 if (DebugInfoVal) 1395 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1396 1397 for (const auto &Prefix : Opts.DebugPrefixMap) 1398 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1399 Prefix.first + "=" + Prefix.second, SA); 1400 1401 for (const auto &Prefix : Opts.CoveragePrefixMap) 1402 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1403 Prefix.first + "=" + Prefix.second, SA); 1404 1405 if (Opts.NewStructPathTBAA) 1406 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1407 1408 if (Opts.OptimizeSize == 1) 1409 GenerateArg(Args, OPT_O, "s", SA); 1410 else if (Opts.OptimizeSize == 2) 1411 GenerateArg(Args, OPT_O, "z", SA); 1412 1413 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1414 // -ffreestanding. We'll consider that when generating them. 1415 1416 // NoBuiltinFuncs are generated by LangOptions. 1417 1418 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1419 GenerateArg(Args, OPT_funroll_loops, SA); 1420 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1421 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1422 1423 if (!Opts.BinutilsVersion.empty()) 1424 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1425 1426 if (Opts.DebugNameTable == 1427 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1428 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1429 else if (Opts.DebugNameTable == 1430 static_cast<unsigned>( 1431 llvm::DICompileUnit::DebugNameTableKind::Default)) 1432 GenerateArg(Args, OPT_gpubnames, SA); 1433 1434 auto TNK = Opts.getDebugSimpleTemplateNames(); 1435 if (TNK != codegenoptions::DebugTemplateNamesKind::Full) { 1436 if (TNK == codegenoptions::DebugTemplateNamesKind::Simple) 1437 GenerateArg(Args, OPT_gsimple_template_names_EQ, "simple", SA); 1438 else if (TNK == codegenoptions::DebugTemplateNamesKind::Mangled) 1439 GenerateArg(Args, OPT_gsimple_template_names_EQ, "mangled", SA); 1440 } 1441 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1442 // it or PGOUseInstrumentor. 1443 1444 if (Opts.TimePasses) { 1445 if (Opts.TimePassesPerRun) 1446 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1447 else 1448 GenerateArg(Args, OPT_ftime_report, SA); 1449 } 1450 1451 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1452 GenerateArg(Args, OPT_flto_EQ, "full", SA); 1453 1454 if (Opts.PrepareForThinLTO) 1455 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1456 1457 if (!Opts.ThinLTOIndexFile.empty()) 1458 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1459 1460 if (Opts.SaveTempsFilePrefix == OutputFile) 1461 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1462 1463 StringRef MemProfileBasename("memprof.profraw"); 1464 if (!Opts.MemoryProfileOutput.empty()) { 1465 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1466 GenerateArg(Args, OPT_fmemory_profile, SA); 1467 } else { 1468 size_t ArgLength = 1469 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1470 GenerateArg(Args, OPT_fmemory_profile_EQ, 1471 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1472 } 1473 } 1474 1475 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1476 GenerateArg(Args, OPT_coverage_version_EQ, 1477 StringRef(Opts.CoverageVersion, 4), SA); 1478 1479 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1480 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1481 // won't be generated.) 1482 1483 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1484 std::string InstrBundle = 1485 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1486 if (!InstrBundle.empty()) 1487 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1488 } 1489 1490 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1491 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1492 else if (Opts.CFProtectionReturn) 1493 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1494 else if (Opts.CFProtectionBranch) 1495 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1496 1497 for (const auto &F : Opts.LinkBitcodeFiles) { 1498 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1499 F.PropagateAttrs && F.Internalize; 1500 GenerateArg(Args, 1501 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1502 F.Filename, SA); 1503 } 1504 1505 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls. 1506 // That would make it easy to generate the option only **once** if it was 1507 // explicitly set to non-default value. 1508 if (Opts.ExplicitEmulatedTLS) { 1509 GenerateArg( 1510 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1511 } 1512 1513 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1514 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1515 1516 if (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE()) 1517 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1518 SA); 1519 1520 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1521 OptSpecifier Opt = 1522 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1523 GenerateArg(Args, Opt, SA); 1524 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1525 OptSpecifier Opt = 1526 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1527 GenerateArg(Args, Opt, SA); 1528 } 1529 1530 if (Opts.EnableAIXExtendedAltivecABI) 1531 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1532 1533 if (!Opts.OptRecordPasses.empty()) 1534 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1535 1536 if (!Opts.OptRecordFormat.empty()) 1537 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1538 1539 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1540 Opts.OptimizationRemark); 1541 1542 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1543 Opts.OptimizationRemarkMissed); 1544 1545 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1546 Opts.OptimizationRemarkAnalysis); 1547 1548 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1549 Opts.DiagnosticsHotnessThreshold 1550 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1551 : "auto", 1552 SA); 1553 1554 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1555 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1556 1557 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1558 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1559 1560 if (!Opts.EmitVersionIdentMetadata) 1561 GenerateArg(Args, OPT_Qn, SA); 1562 1563 switch (Opts.FiniteLoops) { 1564 case CodeGenOptions::FiniteLoopsKind::Language: 1565 break; 1566 case CodeGenOptions::FiniteLoopsKind::Always: 1567 GenerateArg(Args, OPT_ffinite_loops, SA); 1568 break; 1569 case CodeGenOptions::FiniteLoopsKind::Never: 1570 GenerateArg(Args, OPT_fno_finite_loops, SA); 1571 break; 1572 } 1573 } 1574 1575 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1576 InputKind IK, 1577 DiagnosticsEngine &Diags, 1578 const llvm::Triple &T, 1579 const std::string &OutputFile, 1580 const LangOptions &LangOptsRef) { 1581 unsigned NumErrorsBefore = Diags.getNumErrors(); 1582 1583 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1584 // TODO: This could be done in Driver 1585 unsigned MaxOptLevel = 3; 1586 if (OptimizationLevel > MaxOptLevel) { 1587 // If the optimization level is not supported, fall back on the default 1588 // optimization 1589 Diags.Report(diag::warn_drv_optimization_value) 1590 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1591 OptimizationLevel = MaxOptLevel; 1592 } 1593 Opts.OptimizationLevel = OptimizationLevel; 1594 1595 // The key paths of codegen options defined in Options.td start with 1596 // "CodeGenOpts.". Let's provide the expected variable name and type. 1597 CodeGenOptions &CodeGenOpts = Opts; 1598 // Some codegen options depend on language options. Let's provide the expected 1599 // variable name and type. 1600 const LangOptions *LangOpts = &LangOptsRef; 1601 1602 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1603 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1604 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1605 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1606 MERGER, EXTRACTOR, TABLE_INDEX) \ 1607 PARSE_OPTION_WITH_MARSHALLING( \ 1608 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1609 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1610 #include "clang/Driver/Options.inc" 1611 #undef CODEGEN_OPTION_WITH_MARSHALLING 1612 1613 // At O0 we want to fully disable inlining outside of cases marked with 1614 // 'alwaysinline' that are required for correctness. 1615 Opts.setInlining((Opts.OptimizationLevel == 0) 1616 ? CodeGenOptions::OnlyAlwaysInlining 1617 : CodeGenOptions::NormalInlining); 1618 // Explicit inlining flags can disable some or all inlining even at 1619 // optimization levels above zero. 1620 if (Arg *InlineArg = Args.getLastArg( 1621 options::OPT_finline_functions, options::OPT_finline_hint_functions, 1622 options::OPT_fno_inline_functions, options::OPT_fno_inline)) { 1623 if (Opts.OptimizationLevel > 0) { 1624 const Option &InlineOpt = InlineArg->getOption(); 1625 if (InlineOpt.matches(options::OPT_finline_functions)) 1626 Opts.setInlining(CodeGenOptions::NormalInlining); 1627 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 1628 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1629 else 1630 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1631 } 1632 } 1633 1634 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1635 // -fdirect-access-external-data. 1636 Opts.DirectAccessExternalData = 1637 Args.hasArg(OPT_fdirect_access_external_data) || 1638 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1639 LangOpts->PICLevel == 0); 1640 1641 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1642 unsigned Val = 1643 llvm::StringSwitch<unsigned>(A->getValue()) 1644 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1645 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1646 .Case("constructor", codegenoptions::DebugInfoConstructor) 1647 .Case("limited", codegenoptions::LimitedDebugInfo) 1648 .Case("standalone", codegenoptions::FullDebugInfo) 1649 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1650 .Default(~0U); 1651 if (Val == ~0U) 1652 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1653 << A->getValue(); 1654 else 1655 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1656 } 1657 1658 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1659 // constructor homing, and vice versa for -fno-use-ctor-homing. 1660 if (const Arg *A = 1661 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1662 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1663 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1664 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1665 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1666 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1667 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1668 } 1669 1670 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1671 auto Split = StringRef(Arg).split('='); 1672 Opts.DebugPrefixMap.insert( 1673 {std::string(Split.first), std::string(Split.second)}); 1674 } 1675 1676 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1677 auto Split = StringRef(Arg).split('='); 1678 Opts.CoveragePrefixMap.insert( 1679 {std::string(Split.first), std::string(Split.second)}); 1680 } 1681 1682 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1683 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1684 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1685 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1686 1687 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1688 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1689 Opts.EmitCallSiteInfo = true; 1690 1691 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1692 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1693 << Opts.DIBugsReportFilePath; 1694 Opts.DIBugsReportFilePath = ""; 1695 } 1696 1697 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1698 Args.hasArg(OPT_new_struct_path_tbaa); 1699 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1700 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1701 if (Opts.SimplifyLibCalls) 1702 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1703 Opts.UnrollLoops = 1704 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1705 (Opts.OptimizationLevel > 1)); 1706 Opts.BinutilsVersion = 1707 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1708 1709 Opts.DebugNameTable = static_cast<unsigned>( 1710 Args.hasArg(OPT_ggnu_pubnames) 1711 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1712 : Args.hasArg(OPT_gpubnames) 1713 ? llvm::DICompileUnit::DebugNameTableKind::Default 1714 : llvm::DICompileUnit::DebugNameTableKind::None); 1715 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1716 StringRef Value = A->getValue(); 1717 if (Value != "simple" && Value != "mangled") 1718 Diags.Report(diag::err_drv_unsupported_option_argument) 1719 << A->getOption().getName() << A->getValue(); 1720 Opts.setDebugSimpleTemplateNames( 1721 StringRef(A->getValue()) == "simple" 1722 ? codegenoptions::DebugTemplateNamesKind::Simple 1723 : codegenoptions::DebugTemplateNamesKind::Mangled); 1724 } 1725 1726 if (!Opts.ProfileInstrumentUsePath.empty()) 1727 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 1728 1729 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1730 Opts.TimePasses = true; 1731 1732 // -ftime-report= is only for new pass manager. 1733 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1734 if (Opts.LegacyPassManager) 1735 Diags.Report(diag::err_drv_argument_only_allowed_with) 1736 << A->getAsString(Args) << "-fno-legacy-pass-manager"; 1737 1738 StringRef Val = A->getValue(); 1739 if (Val == "per-pass") 1740 Opts.TimePassesPerRun = false; 1741 else if (Val == "per-pass-run") 1742 Opts.TimePassesPerRun = true; 1743 else 1744 Diags.Report(diag::err_drv_invalid_value) 1745 << A->getAsString(Args) << A->getValue(); 1746 } 1747 } 1748 1749 Opts.PrepareForLTO = false; 1750 Opts.PrepareForThinLTO = false; 1751 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1752 Opts.PrepareForLTO = true; 1753 StringRef S = A->getValue(); 1754 if (S == "thin") 1755 Opts.PrepareForThinLTO = true; 1756 else if (S != "full") 1757 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1758 } 1759 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1760 if (IK.getLanguage() != Language::LLVM_IR) 1761 Diags.Report(diag::err_drv_argument_only_allowed_with) 1762 << A->getAsString(Args) << "-x ir"; 1763 Opts.ThinLTOIndexFile = 1764 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1765 } 1766 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1767 Opts.SaveTempsFilePrefix = 1768 llvm::StringSwitch<std::string>(A->getValue()) 1769 .Case("obj", OutputFile) 1770 .Default(llvm::sys::path::filename(OutputFile).str()); 1771 1772 // The memory profile runtime appends the pid to make this name more unique. 1773 const char *MemProfileBasename = "memprof.profraw"; 1774 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1775 SmallString<128> Path( 1776 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1777 llvm::sys::path::append(Path, MemProfileBasename); 1778 Opts.MemoryProfileOutput = std::string(Path); 1779 } else if (Args.hasArg(OPT_fmemory_profile)) 1780 Opts.MemoryProfileOutput = MemProfileBasename; 1781 1782 memcpy(Opts.CoverageVersion, "408*", 4); 1783 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1784 if (Args.hasArg(OPT_coverage_version_EQ)) { 1785 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1786 if (CoverageVersion.size() != 4) { 1787 Diags.Report(diag::err_drv_invalid_value) 1788 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1789 << CoverageVersion; 1790 } else { 1791 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1792 } 1793 } 1794 } 1795 // FIXME: For backend options that are not yet recorded as function 1796 // attributes in the IR, keep track of them so we can embed them in a 1797 // separate data section and use them when building the bitcode. 1798 for (const auto &A : Args) { 1799 // Do not encode output and input. 1800 if (A->getOption().getID() == options::OPT_o || 1801 A->getOption().getID() == options::OPT_INPUT || 1802 A->getOption().getID() == options::OPT_x || 1803 A->getOption().getID() == options::OPT_fembed_bitcode || 1804 A->getOption().matches(options::OPT_W_Group)) 1805 continue; 1806 ArgStringList ASL; 1807 A->render(Args, ASL); 1808 for (const auto &arg : ASL) { 1809 StringRef ArgStr(arg); 1810 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1811 // using \00 to separate each commandline options. 1812 Opts.CmdArgs.push_back('\0'); 1813 } 1814 } 1815 1816 auto XRayInstrBundles = 1817 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1818 if (XRayInstrBundles.empty()) 1819 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1820 else 1821 for (const auto &A : XRayInstrBundles) 1822 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1823 Diags, Opts.XRayInstrumentationBundle); 1824 1825 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1826 StringRef Name = A->getValue(); 1827 if (Name == "full") { 1828 Opts.CFProtectionReturn = 1; 1829 Opts.CFProtectionBranch = 1; 1830 } else if (Name == "return") 1831 Opts.CFProtectionReturn = 1; 1832 else if (Name == "branch") 1833 Opts.CFProtectionBranch = 1; 1834 else if (Name != "none") 1835 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1836 } 1837 1838 if (Opts.PrepareForLTO && Args.hasArg(OPT_mibt_seal)) 1839 Opts.IBTSeal = 1; 1840 1841 for (auto *A : 1842 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1843 CodeGenOptions::BitcodeFileToLink F; 1844 F.Filename = A->getValue(); 1845 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1846 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1847 // When linking CUDA bitcode, propagate function attributes so that 1848 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1849 F.PropagateAttrs = true; 1850 F.Internalize = true; 1851 } 1852 Opts.LinkBitcodeFiles.push_back(F); 1853 } 1854 1855 if (Args.getLastArg(OPT_femulated_tls) || 1856 Args.getLastArg(OPT_fno_emulated_tls)) { 1857 Opts.ExplicitEmulatedTLS = true; 1858 } 1859 1860 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1861 if (T.isOSAIX()) { 1862 StringRef Name = A->getValue(); 1863 if (Name != "global-dynamic") 1864 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1865 } 1866 } 1867 1868 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1869 StringRef Val = A->getValue(); 1870 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1871 if (!Opts.FPDenormalMode.isValid()) 1872 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1873 } 1874 1875 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1876 StringRef Val = A->getValue(); 1877 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1878 if (!Opts.FP32DenormalMode.isValid()) 1879 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1880 } 1881 1882 // X86_32 has -fppc-struct-return and -freg-struct-return. 1883 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1884 if (Arg *A = 1885 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1886 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1887 // TODO: We might want to consider enabling these options on AIX in the 1888 // future. 1889 if (T.isOSAIX()) 1890 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1891 << A->getSpelling() << T.str(); 1892 1893 const Option &O = A->getOption(); 1894 if (O.matches(OPT_fpcc_struct_return) || 1895 O.matches(OPT_maix_struct_return)) { 1896 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1897 } else { 1898 assert(O.matches(OPT_freg_struct_return) || 1899 O.matches(OPT_msvr4_struct_return)); 1900 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1901 } 1902 } 1903 1904 if (Arg *A = 1905 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1906 if (!T.isOSAIX()) 1907 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1908 << A->getSpelling() << T.str(); 1909 1910 const Option &O = A->getOption(); 1911 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1912 } 1913 1914 bool NeedLocTracking = false; 1915 1916 if (!Opts.OptRecordFile.empty()) 1917 NeedLocTracking = true; 1918 1919 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1920 Opts.OptRecordPasses = A->getValue(); 1921 NeedLocTracking = true; 1922 } 1923 1924 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1925 Opts.OptRecordFormat = A->getValue(); 1926 NeedLocTracking = true; 1927 } 1928 1929 Opts.OptimizationRemark = 1930 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1931 1932 Opts.OptimizationRemarkMissed = 1933 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1934 1935 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 1936 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 1937 1938 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 1939 Opts.OptimizationRemarkMissed.hasValidPattern() || 1940 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 1941 1942 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 1943 bool UsingProfile = UsingSampleProfile || 1944 (Opts.getProfileUse() != CodeGenOptions::ProfileNone); 1945 1946 if (Opts.DiagnosticsWithHotness && !UsingProfile && 1947 // An IR file will contain PGO as metadata 1948 IK.getLanguage() != Language::LLVM_IR) 1949 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1950 << "-fdiagnostics-show-hotness"; 1951 1952 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 1953 if (auto *arg = 1954 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 1955 auto ResultOrErr = 1956 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 1957 1958 if (!ResultOrErr) { 1959 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 1960 << "-fdiagnostics-hotness-threshold="; 1961 } else { 1962 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 1963 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() || 1964 Opts.DiagnosticsHotnessThreshold.getValue() > 0) && 1965 !UsingProfile) 1966 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 1967 << "-fdiagnostics-hotness-threshold="; 1968 } 1969 } 1970 1971 // If the user requested to use a sample profile for PGO, then the 1972 // backend will need to track source location information so the profile 1973 // can be incorporated into the IR. 1974 if (UsingSampleProfile) 1975 NeedLocTracking = true; 1976 1977 if (!Opts.StackUsageOutput.empty()) 1978 NeedLocTracking = true; 1979 1980 // If the user requested a flag that requires source locations available in 1981 // the backend, make sure that the backend tracks source location information. 1982 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 1983 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 1984 1985 // Parse -fsanitize-recover= arguments. 1986 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 1987 parseSanitizerKinds("-fsanitize-recover=", 1988 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 1989 Opts.SanitizeRecover); 1990 parseSanitizerKinds("-fsanitize-trap=", 1991 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 1992 Opts.SanitizeTrap); 1993 1994 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 1995 1996 if (Args.hasArg(options::OPT_ffinite_loops)) 1997 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 1998 else if (Args.hasArg(options::OPT_fno_finite_loops)) 1999 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2000 2001 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2002 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2003 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2004 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2005 2006 return Diags.getNumErrors() == NumErrorsBefore; 2007 } 2008 2009 static void 2010 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2011 SmallVectorImpl<const char *> &Args, 2012 CompilerInvocation::StringAllocator SA) { 2013 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2014 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2015 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2016 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2017 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2018 MERGER, EXTRACTOR, TABLE_INDEX) \ 2019 GENERATE_OPTION_WITH_MARSHALLING( \ 2020 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2021 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2022 #include "clang/Driver/Options.inc" 2023 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2024 2025 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2026 GenerateArg(Args, OPT_show_includes, SA); 2027 2028 for (const auto &Dep : Opts.ExtraDeps) { 2029 switch (Dep.second) { 2030 case EDK_SanitizeIgnorelist: 2031 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2032 continue; 2033 case EDK_ModuleFile: 2034 // Module file arguments are generated from FrontendOptions and 2035 // HeaderSearchOptions. 2036 continue; 2037 case EDK_ProfileList: 2038 // Profile list arguments are generated from LanguageOptions via the 2039 // marshalling infrastructure. 2040 continue; 2041 case EDK_DepFileEntry: 2042 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2043 break; 2044 } 2045 } 2046 } 2047 2048 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2049 ArgList &Args, DiagnosticsEngine &Diags, 2050 frontend::ActionKind Action, 2051 bool ShowLineMarkers) { 2052 unsigned NumErrorsBefore = Diags.getNumErrors(); 2053 2054 DependencyOutputOptions &DependencyOutputOpts = Opts; 2055 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2056 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2057 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2058 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2059 MERGER, EXTRACTOR, TABLE_INDEX) \ 2060 PARSE_OPTION_WITH_MARSHALLING( \ 2061 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2062 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2063 #include "clang/Driver/Options.inc" 2064 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2065 2066 if (Args.hasArg(OPT_show_includes)) { 2067 // Writing both /showIncludes and preprocessor output to stdout 2068 // would produce interleaved output, so use stderr for /showIncludes. 2069 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2070 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2071 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2072 else 2073 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2074 } else { 2075 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2076 } 2077 2078 // Add sanitizer ignorelists as extra dependencies. 2079 // They won't be discovered by the regular preprocessor, so 2080 // we let make / ninja to know about this implicit dependency. 2081 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2082 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2083 StringRef Val = A->getValue(); 2084 if (!Val.contains('=')) 2085 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2086 } 2087 if (Opts.IncludeSystemHeaders) { 2088 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2089 StringRef Val = A->getValue(); 2090 if (!Val.contains('=')) 2091 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2092 } 2093 } 2094 } 2095 2096 // -fprofile-list= dependencies. 2097 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2098 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2099 2100 // Propagate the extra dependencies. 2101 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2102 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2103 2104 // Only the -fmodule-file=<file> form. 2105 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2106 StringRef Val = A->getValue(); 2107 if (!Val.contains('=')) 2108 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2109 } 2110 2111 return Diags.getNumErrors() == NumErrorsBefore; 2112 } 2113 2114 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2115 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2116 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2117 // Support both clang's -f[no-]color-diagnostics and gcc's 2118 // -f[no-]diagnostics-colors[=never|always|auto]. 2119 enum { 2120 Colors_On, 2121 Colors_Off, 2122 Colors_Auto 2123 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2124 for (auto *A : Args) { 2125 const Option &O = A->getOption(); 2126 if (O.matches(options::OPT_fcolor_diagnostics) || 2127 O.matches(options::OPT_fdiagnostics_color)) { 2128 ShowColors = Colors_On; 2129 } else if (O.matches(options::OPT_fno_color_diagnostics) || 2130 O.matches(options::OPT_fno_diagnostics_color)) { 2131 ShowColors = Colors_Off; 2132 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2133 StringRef Value(A->getValue()); 2134 if (Value == "always") 2135 ShowColors = Colors_On; 2136 else if (Value == "never") 2137 ShowColors = Colors_Off; 2138 else if (Value == "auto") 2139 ShowColors = Colors_Auto; 2140 } 2141 } 2142 return ShowColors == Colors_On || 2143 (ShowColors == Colors_Auto && 2144 llvm::sys::Process::StandardErrHasColors()); 2145 } 2146 2147 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2148 DiagnosticsEngine &Diags) { 2149 bool Success = true; 2150 for (const auto &Prefix : VerifyPrefixes) { 2151 // Every prefix must start with a letter and contain only alphanumeric 2152 // characters, hyphens, and underscores. 2153 auto BadChar = llvm::find_if(Prefix, [](char C) { 2154 return !isAlphanumeric(C) && C != '-' && C != '_'; 2155 }); 2156 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2157 Success = false; 2158 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2159 Diags.Report(diag::note_drv_verify_prefix_spelling); 2160 } 2161 } 2162 return Success; 2163 } 2164 2165 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2166 SmallVectorImpl<const char *> &Args, 2167 CompilerInvocation::StringAllocator SA) { 2168 const FileSystemOptions &FileSystemOpts = Opts; 2169 2170 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2171 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2172 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2173 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2174 MERGER, EXTRACTOR, TABLE_INDEX) \ 2175 GENERATE_OPTION_WITH_MARSHALLING( \ 2176 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2177 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2178 #include "clang/Driver/Options.inc" 2179 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2180 } 2181 2182 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2183 DiagnosticsEngine &Diags) { 2184 unsigned NumErrorsBefore = Diags.getNumErrors(); 2185 2186 FileSystemOptions &FileSystemOpts = Opts; 2187 2188 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2189 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2190 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2191 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2192 MERGER, EXTRACTOR, TABLE_INDEX) \ 2193 PARSE_OPTION_WITH_MARSHALLING( \ 2194 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2195 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2196 #include "clang/Driver/Options.inc" 2197 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2198 2199 return Diags.getNumErrors() == NumErrorsBefore; 2200 } 2201 2202 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2203 SmallVectorImpl<const char *> &Args, 2204 CompilerInvocation::StringAllocator SA) { 2205 const MigratorOptions &MigratorOpts = Opts; 2206 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2207 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2208 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2209 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2210 MERGER, EXTRACTOR, TABLE_INDEX) \ 2211 GENERATE_OPTION_WITH_MARSHALLING( \ 2212 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2213 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2214 #include "clang/Driver/Options.inc" 2215 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2216 } 2217 2218 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2219 DiagnosticsEngine &Diags) { 2220 unsigned NumErrorsBefore = Diags.getNumErrors(); 2221 2222 MigratorOptions &MigratorOpts = Opts; 2223 2224 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2225 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2226 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2227 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2228 MERGER, EXTRACTOR, TABLE_INDEX) \ 2229 PARSE_OPTION_WITH_MARSHALLING( \ 2230 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2231 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2232 #include "clang/Driver/Options.inc" 2233 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2234 2235 return Diags.getNumErrors() == NumErrorsBefore; 2236 } 2237 2238 void CompilerInvocation::GenerateDiagnosticArgs( 2239 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2240 StringAllocator SA, bool DefaultDiagColor) { 2241 const DiagnosticOptions *DiagnosticOpts = &Opts; 2242 #define DIAG_OPTION_WITH_MARSHALLING( \ 2243 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2244 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2245 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2246 MERGER, EXTRACTOR, TABLE_INDEX) \ 2247 GENERATE_OPTION_WITH_MARSHALLING( \ 2248 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2249 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2250 #include "clang/Driver/Options.inc" 2251 #undef DIAG_OPTION_WITH_MARSHALLING 2252 2253 if (!Opts.DiagnosticSerializationFile.empty()) 2254 GenerateArg(Args, OPT_diagnostic_serialized_file, 2255 Opts.DiagnosticSerializationFile, SA); 2256 2257 if (Opts.ShowColors) 2258 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2259 2260 if (Opts.VerifyDiagnostics && 2261 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2262 GenerateArg(Args, OPT_verify, SA); 2263 2264 for (const auto &Prefix : Opts.VerifyPrefixes) 2265 if (Prefix != "expected") 2266 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2267 2268 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2269 if (VIU == DiagnosticLevelMask::None) { 2270 // This is the default, don't generate anything. 2271 } else if (VIU == DiagnosticLevelMask::All) { 2272 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2273 } else { 2274 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2275 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2276 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2277 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2278 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2279 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2280 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2281 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2282 } 2283 2284 for (const auto &Warning : Opts.Warnings) { 2285 // This option is automatically generated from UndefPrefixes. 2286 if (Warning == "undef-prefix") 2287 continue; 2288 Args.push_back(SA(StringRef("-W") + Warning)); 2289 } 2290 2291 for (const auto &Remark : Opts.Remarks) { 2292 // These arguments are generated from OptimizationRemark fields of 2293 // CodeGenOptions. 2294 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2295 "pass-analysis", "no-pass-analysis", 2296 "pass-missed", "no-pass-missed"}; 2297 if (llvm::is_contained(IgnoredRemarks, Remark)) 2298 continue; 2299 2300 Args.push_back(SA(StringRef("-R") + Remark)); 2301 } 2302 } 2303 2304 std::unique_ptr<DiagnosticOptions> 2305 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2306 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2307 unsigned MissingArgIndex, MissingArgCount; 2308 InputArgList Args = getDriverOptTable().ParseArgs( 2309 Argv.slice(1), MissingArgIndex, MissingArgCount); 2310 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2311 // Any errors that would be diagnosed here will also be diagnosed later, 2312 // when the DiagnosticsEngine actually exists. 2313 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2314 return DiagOpts; 2315 } 2316 2317 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2318 DiagnosticsEngine *Diags, 2319 bool DefaultDiagColor) { 2320 Optional<DiagnosticsEngine> IgnoringDiags; 2321 if (!Diags) { 2322 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2323 new IgnoringDiagConsumer()); 2324 Diags = &*IgnoringDiags; 2325 } 2326 2327 unsigned NumErrorsBefore = Diags->getNumErrors(); 2328 2329 // The key paths of diagnostic options defined in Options.td start with 2330 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2331 DiagnosticOptions *DiagnosticOpts = &Opts; 2332 2333 #define DIAG_OPTION_WITH_MARSHALLING( \ 2334 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2335 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2336 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2337 MERGER, EXTRACTOR, TABLE_INDEX) \ 2338 PARSE_OPTION_WITH_MARSHALLING( \ 2339 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2340 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2341 #include "clang/Driver/Options.inc" 2342 #undef DIAG_OPTION_WITH_MARSHALLING 2343 2344 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2345 2346 if (Arg *A = 2347 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2348 Opts.DiagnosticSerializationFile = A->getValue(); 2349 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2350 2351 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2352 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2353 if (Args.hasArg(OPT_verify)) 2354 Opts.VerifyPrefixes.push_back("expected"); 2355 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2356 // then sort it to prepare for fast lookup using std::binary_search. 2357 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2358 Opts.VerifyDiagnostics = false; 2359 else 2360 llvm::sort(Opts.VerifyPrefixes); 2361 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2362 parseDiagnosticLevelMask( 2363 "-verify-ignore-unexpected=", 2364 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2365 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2366 DiagMask = DiagnosticLevelMask::All; 2367 Opts.setVerifyIgnoreUnexpected(DiagMask); 2368 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2369 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2370 Diags->Report(diag::warn_ignoring_ftabstop_value) 2371 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2372 } 2373 2374 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2375 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2376 2377 return Diags->getNumErrors() == NumErrorsBefore; 2378 } 2379 2380 /// Parse the argument to the -ftest-module-file-extension 2381 /// command-line argument. 2382 /// 2383 /// \returns true on error, false on success. 2384 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2385 std::string &BlockName, 2386 unsigned &MajorVersion, 2387 unsigned &MinorVersion, 2388 bool &Hashed, 2389 std::string &UserInfo) { 2390 SmallVector<StringRef, 5> Args; 2391 Arg.split(Args, ':', 5); 2392 if (Args.size() < 5) 2393 return true; 2394 2395 BlockName = std::string(Args[0]); 2396 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2397 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2398 if (Args[3].getAsInteger(2, Hashed)) return true; 2399 if (Args.size() > 4) 2400 UserInfo = std::string(Args[4]); 2401 return false; 2402 } 2403 2404 /// Return a table that associates command line option specifiers with the 2405 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2406 /// intentionally missing, as this case is handled separately from other 2407 /// frontend options. 2408 static const auto &getFrontendActionTable() { 2409 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2410 {frontend::ASTDeclList, OPT_ast_list}, 2411 2412 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2413 {frontend::ASTDump, OPT_ast_dump_all}, 2414 {frontend::ASTDump, OPT_ast_dump_EQ}, 2415 {frontend::ASTDump, OPT_ast_dump}, 2416 {frontend::ASTDump, OPT_ast_dump_lookups}, 2417 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2418 2419 {frontend::ASTPrint, OPT_ast_print}, 2420 {frontend::ASTView, OPT_ast_view}, 2421 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2422 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2423 {frontend::DumpTokens, OPT_dump_tokens}, 2424 {frontend::EmitAssembly, OPT_S}, 2425 {frontend::EmitBC, OPT_emit_llvm_bc}, 2426 {frontend::EmitHTML, OPT_emit_html}, 2427 {frontend::EmitLLVM, OPT_emit_llvm}, 2428 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2429 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2430 {frontend::EmitObj, OPT_emit_obj}, 2431 {frontend::ExtractAPI, OPT_extract_api}, 2432 2433 {frontend::FixIt, OPT_fixit_EQ}, 2434 {frontend::FixIt, OPT_fixit}, 2435 2436 {frontend::GenerateModule, OPT_emit_module}, 2437 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2438 {frontend::GenerateHeaderModule, OPT_emit_header_module}, 2439 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2440 {frontend::GeneratePCH, OPT_emit_pch}, 2441 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2442 {frontend::InitOnly, OPT_init_only}, 2443 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2444 {frontend::ModuleFileInfo, OPT_module_file_info}, 2445 {frontend::VerifyPCH, OPT_verify_pch}, 2446 {frontend::PrintPreamble, OPT_print_preamble}, 2447 {frontend::PrintPreprocessedInput, OPT_E}, 2448 {frontend::TemplightDump, OPT_templight_dump}, 2449 {frontend::RewriteMacros, OPT_rewrite_macros}, 2450 {frontend::RewriteObjC, OPT_rewrite_objc}, 2451 {frontend::RewriteTest, OPT_rewrite_test}, 2452 {frontend::RunAnalysis, OPT_analyze}, 2453 {frontend::MigrateSource, OPT_migrate}, 2454 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2455 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2456 OPT_print_dependency_directives_minimized_source}, 2457 }; 2458 2459 return Table; 2460 } 2461 2462 /// Maps command line option to frontend action. 2463 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) { 2464 for (const auto &ActionOpt : getFrontendActionTable()) 2465 if (ActionOpt.second == Opt.getID()) 2466 return ActionOpt.first; 2467 2468 return None; 2469 } 2470 2471 /// Maps frontend action to command line option. 2472 static Optional<OptSpecifier> 2473 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2474 for (const auto &ActionOpt : getFrontendActionTable()) 2475 if (ActionOpt.first == ProgramAction) 2476 return OptSpecifier(ActionOpt.second); 2477 2478 return None; 2479 } 2480 2481 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2482 SmallVectorImpl<const char *> &Args, 2483 CompilerInvocation::StringAllocator SA, 2484 bool IsHeader) { 2485 const FrontendOptions &FrontendOpts = Opts; 2486 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2487 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2488 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2489 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2490 MERGER, EXTRACTOR, TABLE_INDEX) \ 2491 GENERATE_OPTION_WITH_MARSHALLING( \ 2492 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2493 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2494 #include "clang/Driver/Options.inc" 2495 #undef FRONTEND_OPTION_WITH_MARSHALLING 2496 2497 Optional<OptSpecifier> ProgramActionOpt = 2498 getProgramActionOpt(Opts.ProgramAction); 2499 2500 // Generating a simple flag covers most frontend actions. 2501 std::function<void()> GenerateProgramAction = [&]() { 2502 GenerateArg(Args, *ProgramActionOpt, SA); 2503 }; 2504 2505 if (!ProgramActionOpt) { 2506 // PluginAction is the only program action handled separately. 2507 assert(Opts.ProgramAction == frontend::PluginAction && 2508 "Frontend action without option."); 2509 GenerateProgramAction = [&]() { 2510 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2511 }; 2512 } 2513 2514 // FIXME: Simplify the complex 'AST dump' command line. 2515 if (Opts.ProgramAction == frontend::ASTDump) { 2516 GenerateProgramAction = [&]() { 2517 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2518 // marshalling infrastructure. 2519 2520 if (Opts.ASTDumpFormat != ADOF_Default) { 2521 StringRef Format; 2522 switch (Opts.ASTDumpFormat) { 2523 case ADOF_Default: 2524 llvm_unreachable("Default AST dump format."); 2525 case ADOF_JSON: 2526 Format = "json"; 2527 break; 2528 } 2529 2530 if (Opts.ASTDumpAll) 2531 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2532 if (Opts.ASTDumpDecls) 2533 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2534 } else { 2535 if (Opts.ASTDumpAll) 2536 GenerateArg(Args, OPT_ast_dump_all, SA); 2537 if (Opts.ASTDumpDecls) 2538 GenerateArg(Args, OPT_ast_dump, SA); 2539 } 2540 }; 2541 } 2542 2543 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2544 GenerateProgramAction = [&]() { 2545 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2546 }; 2547 } 2548 2549 GenerateProgramAction(); 2550 2551 for (const auto &PluginArgs : Opts.PluginArgs) { 2552 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2553 const char *Spelling = 2554 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2555 for (const auto &PluginArg : PluginArgs.second) 2556 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2557 } 2558 2559 for (const auto &Ext : Opts.ModuleFileExtensions) 2560 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2561 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2562 2563 if (!Opts.CodeCompletionAt.FileName.empty()) 2564 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2565 SA); 2566 2567 for (const auto &Plugin : Opts.Plugins) 2568 GenerateArg(Args, OPT_load, Plugin, SA); 2569 2570 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2571 2572 for (const auto &ModuleFile : Opts.ModuleFiles) 2573 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2574 2575 if (Opts.AuxTargetCPU.hasValue()) 2576 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2577 2578 if (Opts.AuxTargetFeatures.hasValue()) 2579 for (const auto &Feature : *Opts.AuxTargetFeatures) 2580 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2581 2582 { 2583 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2584 StringRef ModuleMap = 2585 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2586 StringRef HeaderUnit = ""; 2587 switch (Opts.DashX.getHeaderUnitKind()) { 2588 case InputKind::HeaderUnit_None: 2589 break; 2590 case InputKind::HeaderUnit_User: 2591 HeaderUnit = "-user"; 2592 break; 2593 case InputKind::HeaderUnit_System: 2594 HeaderUnit = "-system"; 2595 break; 2596 case InputKind::HeaderUnit_Abs: 2597 HeaderUnit = "-header-unit"; 2598 break; 2599 } 2600 StringRef Header = IsHeader ? "-header" : ""; 2601 2602 StringRef Lang; 2603 switch (Opts.DashX.getLanguage()) { 2604 case Language::C: 2605 Lang = "c"; 2606 break; 2607 case Language::OpenCL: 2608 Lang = "cl"; 2609 break; 2610 case Language::OpenCLCXX: 2611 Lang = "clcpp"; 2612 break; 2613 case Language::CUDA: 2614 Lang = "cuda"; 2615 break; 2616 case Language::HIP: 2617 Lang = "hip"; 2618 break; 2619 case Language::CXX: 2620 Lang = "c++"; 2621 break; 2622 case Language::ObjC: 2623 Lang = "objective-c"; 2624 break; 2625 case Language::ObjCXX: 2626 Lang = "objective-c++"; 2627 break; 2628 case Language::RenderScript: 2629 Lang = "renderscript"; 2630 break; 2631 case Language::Asm: 2632 Lang = "assembler-with-cpp"; 2633 break; 2634 case Language::Unknown: 2635 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2636 "Generating -x argument for unknown language (not precompiled)."); 2637 Lang = "ast"; 2638 break; 2639 case Language::LLVM_IR: 2640 Lang = "ir"; 2641 break; 2642 case Language::HLSL: 2643 Lang = "hlsl"; 2644 break; 2645 } 2646 2647 GenerateArg(Args, OPT_x, 2648 Lang + HeaderUnit + Header + ModuleMap + Preprocessed, SA); 2649 } 2650 2651 // OPT_INPUT has a unique class, generate it directly. 2652 for (const auto &Input : Opts.Inputs) 2653 Args.push_back(SA(Input.getFile())); 2654 } 2655 2656 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2657 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2658 unsigned NumErrorsBefore = Diags.getNumErrors(); 2659 2660 FrontendOptions &FrontendOpts = Opts; 2661 2662 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2663 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2664 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2665 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2666 MERGER, EXTRACTOR, TABLE_INDEX) \ 2667 PARSE_OPTION_WITH_MARSHALLING( \ 2668 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2669 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2670 #include "clang/Driver/Options.inc" 2671 #undef FRONTEND_OPTION_WITH_MARSHALLING 2672 2673 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2674 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2675 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2676 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2677 assert(ProgramAction && "Option specifier not in Action_Group."); 2678 2679 if (ProgramAction == frontend::ASTDump && 2680 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2681 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2682 .CaseLower("default", ADOF_Default) 2683 .CaseLower("json", ADOF_JSON) 2684 .Default(std::numeric_limits<unsigned>::max()); 2685 2686 if (Val != std::numeric_limits<unsigned>::max()) 2687 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2688 else { 2689 Diags.Report(diag::err_drv_invalid_value) 2690 << A->getAsString(Args) << A->getValue(); 2691 Opts.ASTDumpFormat = ADOF_Default; 2692 } 2693 } 2694 2695 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2696 Opts.FixItSuffix = A->getValue(); 2697 2698 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2699 StringRef ArgStr = 2700 Args.hasArg(OPT_interface_stub_version_EQ) 2701 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2702 : "ifs-v1"; 2703 if (ArgStr == "experimental-yaml-elf-v1" || 2704 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2705 ArgStr == "experimental-tapi-elf-v1") { 2706 std::string ErrorMessage = 2707 "Invalid interface stub format: " + ArgStr.str() + 2708 " is deprecated."; 2709 Diags.Report(diag::err_drv_invalid_value) 2710 << "Must specify a valid interface stub format type, ie: " 2711 "-interface-stub-version=ifs-v1" 2712 << ErrorMessage; 2713 ProgramAction = frontend::ParseSyntaxOnly; 2714 } else if (!ArgStr.startswith("ifs-")) { 2715 std::string ErrorMessage = 2716 "Invalid interface stub format: " + ArgStr.str() + "."; 2717 Diags.Report(diag::err_drv_invalid_value) 2718 << "Must specify a valid interface stub format type, ie: " 2719 "-interface-stub-version=ifs-v1" 2720 << ErrorMessage; 2721 ProgramAction = frontend::ParseSyntaxOnly; 2722 } 2723 } 2724 2725 Opts.ProgramAction = *ProgramAction; 2726 } 2727 2728 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2729 Opts.Plugins.emplace_back(A->getValue(0)); 2730 Opts.ProgramAction = frontend::PluginAction; 2731 Opts.ActionName = A->getValue(); 2732 } 2733 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2734 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2735 2736 for (const std::string &Arg : 2737 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2738 std::string BlockName; 2739 unsigned MajorVersion; 2740 unsigned MinorVersion; 2741 bool Hashed; 2742 std::string UserInfo; 2743 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2744 MinorVersion, Hashed, UserInfo)) { 2745 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2746 2747 continue; 2748 } 2749 2750 // Add the testing module file extension. 2751 Opts.ModuleFileExtensions.push_back( 2752 std::make_shared<TestModuleFileExtension>( 2753 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2754 } 2755 2756 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2757 Opts.CodeCompletionAt = 2758 ParsedSourceLocation::FromString(A->getValue()); 2759 if (Opts.CodeCompletionAt.FileName.empty()) 2760 Diags.Report(diag::err_drv_invalid_value) 2761 << A->getAsString(Args) << A->getValue(); 2762 } 2763 2764 Opts.Plugins = Args.getAllArgValues(OPT_load); 2765 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2766 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2767 // Only the -fmodule-file=<file> form. 2768 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2769 StringRef Val = A->getValue(); 2770 if (!Val.contains('=')) 2771 Opts.ModuleFiles.push_back(std::string(Val)); 2772 } 2773 2774 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2775 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2776 << "-emit-module"; 2777 2778 if (Args.hasArg(OPT_aux_target_cpu)) 2779 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2780 if (Args.hasArg(OPT_aux_target_feature)) 2781 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2782 2783 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2784 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2785 Diags.Report(diag::err_drv_argument_not_allowed_with) 2786 << "ARC migration" << "ObjC migration"; 2787 } 2788 2789 InputKind DashX(Language::Unknown); 2790 if (const Arg *A = Args.getLastArg(OPT_x)) { 2791 StringRef XValue = A->getValue(); 2792 2793 // Parse suffixes: 2794 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 2795 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2796 bool Preprocessed = XValue.consume_back("-cpp-output"); 2797 bool ModuleMap = XValue.consume_back("-module-map"); 2798 // Detect and consume the header indicator. 2799 bool IsHeader = 2800 XValue != "precompiled-header" && XValue.consume_back("-header"); 2801 2802 // If we have c++-{user,system}-header, that indicates a header unit input 2803 // likewise, if the user put -fmodule-header together with a header with an 2804 // absolute path (header-unit-header). 2805 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 2806 if (IsHeader || Preprocessed) { 2807 if (XValue.consume_back("-header-unit")) 2808 HUK = InputKind::HeaderUnit_Abs; 2809 else if (XValue.consume_back("-system")) 2810 HUK = InputKind::HeaderUnit_System; 2811 else if (XValue.consume_back("-user")) 2812 HUK = InputKind::HeaderUnit_User; 2813 } 2814 2815 // The value set by this processing is an un-preprocessed source which is 2816 // not intended to be a module map or header unit. 2817 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 2818 HUK == InputKind::HeaderUnit_None; 2819 2820 // Principal languages. 2821 DashX = llvm::StringSwitch<InputKind>(XValue) 2822 .Case("c", Language::C) 2823 .Case("cl", Language::OpenCL) 2824 .Case("clcpp", Language::OpenCLCXX) 2825 .Case("cuda", Language::CUDA) 2826 .Case("hip", Language::HIP) 2827 .Case("c++", Language::CXX) 2828 .Case("objective-c", Language::ObjC) 2829 .Case("objective-c++", Language::ObjCXX) 2830 .Case("renderscript", Language::RenderScript) 2831 .Case("hlsl", Language::HLSL) 2832 .Default(Language::Unknown); 2833 2834 // "objc[++]-cpp-output" is an acceptable synonym for 2835 // "objective-c[++]-cpp-output". 2836 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 2837 HUK == InputKind::HeaderUnit_None) 2838 DashX = llvm::StringSwitch<InputKind>(XValue) 2839 .Case("objc", Language::ObjC) 2840 .Case("objc++", Language::ObjCXX) 2841 .Default(Language::Unknown); 2842 2843 // Some special cases cannot be combined with suffixes. 2844 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 2845 HUK == InputKind::HeaderUnit_None) 2846 DashX = llvm::StringSwitch<InputKind>(XValue) 2847 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2848 .Case("assembler-with-cpp", Language::Asm) 2849 .Cases("ast", "pcm", "precompiled-header", 2850 InputKind(Language::Unknown, InputKind::Precompiled)) 2851 .Case("ir", Language::LLVM_IR) 2852 .Default(Language::Unknown); 2853 2854 if (DashX.isUnknown()) 2855 Diags.Report(diag::err_drv_invalid_value) 2856 << A->getAsString(Args) << A->getValue(); 2857 2858 if (Preprocessed) 2859 DashX = DashX.getPreprocessed(); 2860 // A regular header is considered mutually exclusive with a header unit. 2861 if (HUK != InputKind::HeaderUnit_None) { 2862 DashX = DashX.withHeaderUnit(HUK); 2863 IsHeaderFile = true; 2864 } else if (IsHeaderFile) 2865 DashX = DashX.getHeader(); 2866 if (ModuleMap) 2867 DashX = DashX.withFormat(InputKind::ModuleMap); 2868 } 2869 2870 // '-' is the default input if none is given. 2871 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2872 Opts.Inputs.clear(); 2873 if (Inputs.empty()) 2874 Inputs.push_back("-"); 2875 2876 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 2877 Inputs.size() > 1) 2878 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 2879 2880 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2881 InputKind IK = DashX; 2882 if (IK.isUnknown()) { 2883 IK = FrontendOptions::getInputKindForExtension( 2884 StringRef(Inputs[i]).rsplit('.').second); 2885 // FIXME: Warn on this? 2886 if (IK.isUnknown()) 2887 IK = Language::C; 2888 // FIXME: Remove this hack. 2889 if (i == 0) 2890 DashX = IK; 2891 } 2892 2893 bool IsSystem = false; 2894 2895 // The -emit-module action implicitly takes a module map. 2896 if (Opts.ProgramAction == frontend::GenerateModule && 2897 IK.getFormat() == InputKind::Source) { 2898 IK = IK.withFormat(InputKind::ModuleMap); 2899 IsSystem = Opts.IsSystemModule; 2900 } 2901 2902 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2903 } 2904 2905 Opts.DashX = DashX; 2906 2907 return Diags.getNumErrors() == NumErrorsBefore; 2908 } 2909 2910 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 2911 void *MainAddr) { 2912 std::string ClangExecutable = 2913 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 2914 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 2915 } 2916 2917 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 2918 SmallVectorImpl<const char *> &Args, 2919 CompilerInvocation::StringAllocator SA) { 2920 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 2921 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 2922 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2923 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2924 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2925 MERGER, EXTRACTOR, TABLE_INDEX) \ 2926 GENERATE_OPTION_WITH_MARSHALLING( \ 2927 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2928 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2929 #include "clang/Driver/Options.inc" 2930 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 2931 2932 if (Opts.UseLibcxx) 2933 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 2934 2935 if (!Opts.ModuleCachePath.empty()) 2936 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 2937 2938 for (const auto &File : Opts.PrebuiltModuleFiles) 2939 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 2940 2941 for (const auto &Path : Opts.PrebuiltModulePaths) 2942 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 2943 2944 for (const auto &Macro : Opts.ModulesIgnoreMacros) 2945 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 2946 2947 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 2948 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 2949 llvm::Optional<bool> IsFramework, 2950 llvm::Optional<bool> IgnoreSysRoot) { 2951 return llvm::is_contained(Groups, Entry.Group) && 2952 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 2953 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 2954 }; 2955 2956 auto It = Opts.UserEntries.begin(); 2957 auto End = Opts.UserEntries.end(); 2958 2959 // Add -I..., -F..., and -index-header-map options in order. 2960 for (; It < End && 2961 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true); 2962 ++It) { 2963 OptSpecifier Opt = [It, Matches]() { 2964 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 2965 return OPT_F; 2966 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 2967 return OPT_I; 2968 if (Matches(*It, frontend::Angled, true, true)) 2969 return OPT_F; 2970 if (Matches(*It, frontend::Angled, false, true)) 2971 return OPT_I; 2972 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 2973 }(); 2974 2975 if (It->Group == frontend::IndexHeaderMap) 2976 GenerateArg(Args, OPT_index_header_map, SA); 2977 GenerateArg(Args, Opt, It->Path, SA); 2978 }; 2979 2980 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 2981 // have already been generated as "-I[xx]yy". If that's the case, their 2982 // position on command line was such that this has no semantic impact on 2983 // include paths. 2984 for (; It < End && 2985 Matches(*It, {frontend::After, frontend::Angled}, false, true); 2986 ++It) { 2987 OptSpecifier Opt = 2988 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 2989 GenerateArg(Args, Opt, It->Path, SA); 2990 } 2991 2992 // Note: Some paths that came from "-idirafter=xxyy" may have already been 2993 // generated as "-iwithprefix=xxyy". If that's the case, their position on 2994 // command line was such that this has no semantic impact on include paths. 2995 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 2996 GenerateArg(Args, OPT_idirafter, It->Path, SA); 2997 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 2998 GenerateArg(Args, OPT_iquote, It->Path, SA); 2999 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It) 3000 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3001 It->Path, SA); 3002 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3003 GenerateArg(Args, OPT_iframework, It->Path, SA); 3004 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3005 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 3006 3007 // Add the paths for the various language specific isystem flags. 3008 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3009 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 3010 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3011 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 3012 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3013 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 3014 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3015 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 3016 3017 // Add the internal paths from a driver that detects standard include paths. 3018 // Note: Some paths that came from "-internal-isystem" arguments may have 3019 // already been generated as "-isystem". If that's the case, their position on 3020 // command line was such that this has no semantic impact on include paths. 3021 for (; It < End && 3022 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3023 ++It) { 3024 OptSpecifier Opt = It->Group == frontend::System 3025 ? OPT_internal_isystem 3026 : OPT_internal_externc_isystem; 3027 GenerateArg(Args, Opt, It->Path, SA); 3028 } 3029 3030 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3031 3032 // Add the path prefixes which are implicitly treated as being system headers. 3033 for (const auto &P : Opts.SystemHeaderPrefixes) { 3034 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3035 : OPT_no_system_header_prefix; 3036 GenerateArg(Args, Opt, P.Prefix, SA); 3037 } 3038 3039 for (const std::string &F : Opts.VFSOverlayFiles) 3040 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 3041 } 3042 3043 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3044 DiagnosticsEngine &Diags, 3045 const std::string &WorkingDir) { 3046 unsigned NumErrorsBefore = Diags.getNumErrors(); 3047 3048 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3049 3050 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3051 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3052 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3053 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3054 MERGER, EXTRACTOR, TABLE_INDEX) \ 3055 PARSE_OPTION_WITH_MARSHALLING( \ 3056 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3057 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3058 #include "clang/Driver/Options.inc" 3059 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3060 3061 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3062 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3063 3064 // Canonicalize -fmodules-cache-path before storing it. 3065 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3066 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3067 if (WorkingDir.empty()) 3068 llvm::sys::fs::make_absolute(P); 3069 else 3070 llvm::sys::fs::make_absolute(WorkingDir, P); 3071 } 3072 llvm::sys::path::remove_dots(P); 3073 Opts.ModuleCachePath = std::string(P.str()); 3074 3075 // Only the -fmodule-file=<name>=<file> form. 3076 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3077 StringRef Val = A->getValue(); 3078 if (Val.contains('=')) { 3079 auto Split = Val.split('='); 3080 Opts.PrebuiltModuleFiles.insert( 3081 {std::string(Split.first), std::string(Split.second)}); 3082 } 3083 } 3084 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3085 Opts.AddPrebuiltModulePath(A->getValue()); 3086 3087 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3088 StringRef MacroDef = A->getValue(); 3089 Opts.ModulesIgnoreMacros.insert( 3090 llvm::CachedHashString(MacroDef.split('=').first)); 3091 } 3092 3093 // Add -I..., -F..., and -index-header-map options in order. 3094 bool IsIndexHeaderMap = false; 3095 bool IsSysrootSpecified = 3096 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3097 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3098 if (A->getOption().matches(OPT_index_header_map)) { 3099 // -index-header-map applies to the next -I or -F. 3100 IsIndexHeaderMap = true; 3101 continue; 3102 } 3103 3104 frontend::IncludeDirGroup Group = 3105 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3106 3107 bool IsFramework = A->getOption().matches(OPT_F); 3108 std::string Path = A->getValue(); 3109 3110 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3111 SmallString<32> Buffer; 3112 llvm::sys::path::append(Buffer, Opts.Sysroot, 3113 llvm::StringRef(A->getValue()).substr(1)); 3114 Path = std::string(Buffer.str()); 3115 } 3116 3117 Opts.AddPath(Path, Group, IsFramework, 3118 /*IgnoreSysroot*/ true); 3119 IsIndexHeaderMap = false; 3120 } 3121 3122 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3123 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3124 for (const auto *A : 3125 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3126 if (A->getOption().matches(OPT_iprefix)) 3127 Prefix = A->getValue(); 3128 else if (A->getOption().matches(OPT_iwithprefix)) 3129 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3130 else 3131 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3132 } 3133 3134 for (const auto *A : Args.filtered(OPT_idirafter)) 3135 Opts.AddPath(A->getValue(), frontend::After, false, true); 3136 for (const auto *A : Args.filtered(OPT_iquote)) 3137 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3138 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3139 Opts.AddPath(A->getValue(), frontend::System, false, 3140 !A->getOption().matches(OPT_iwithsysroot)); 3141 for (const auto *A : Args.filtered(OPT_iframework)) 3142 Opts.AddPath(A->getValue(), frontend::System, true, true); 3143 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3144 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3145 /*IgnoreSysRoot=*/false); 3146 3147 // Add the paths for the various language specific isystem flags. 3148 for (const auto *A : Args.filtered(OPT_c_isystem)) 3149 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3150 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3151 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3152 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3153 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3154 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3155 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3156 3157 // Add the internal paths from a driver that detects standard include paths. 3158 for (const auto *A : 3159 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3160 frontend::IncludeDirGroup Group = frontend::System; 3161 if (A->getOption().matches(OPT_internal_externc_isystem)) 3162 Group = frontend::ExternCSystem; 3163 Opts.AddPath(A->getValue(), Group, false, true); 3164 } 3165 3166 // Add the path prefixes which are implicitly treated as being system headers. 3167 for (const auto *A : 3168 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3169 Opts.AddSystemHeaderPrefix( 3170 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3171 3172 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3173 Opts.AddVFSOverlayFile(A->getValue()); 3174 3175 return Diags.getNumErrors() == NumErrorsBefore; 3176 } 3177 3178 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 3179 const llvm::Triple &T, 3180 std::vector<std::string> &Includes, 3181 LangStandard::Kind LangStd) { 3182 // Set some properties which depend solely on the input kind; it would be nice 3183 // to move these to the language standard, and have the driver resolve the 3184 // input kind + language standard. 3185 // 3186 // FIXME: Perhaps a better model would be for a single source file to have 3187 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std) 3188 // simultaneously active? 3189 if (IK.getLanguage() == Language::Asm) { 3190 Opts.AsmPreprocessor = 1; 3191 } else if (IK.isObjectiveC()) { 3192 Opts.ObjC = 1; 3193 } 3194 3195 if (LangStd == LangStandard::lang_unspecified) { 3196 // Based on the base language, pick one. 3197 switch (IK.getLanguage()) { 3198 case Language::Unknown: 3199 case Language::LLVM_IR: 3200 llvm_unreachable("Invalid input kind!"); 3201 case Language::OpenCL: 3202 LangStd = LangStandard::lang_opencl12; 3203 break; 3204 case Language::OpenCLCXX: 3205 LangStd = LangStandard::lang_openclcpp10; 3206 break; 3207 case Language::CUDA: 3208 LangStd = LangStandard::lang_cuda; 3209 break; 3210 case Language::Asm: 3211 case Language::C: 3212 #if defined(CLANG_DEFAULT_STD_C) 3213 LangStd = CLANG_DEFAULT_STD_C; 3214 #else 3215 // The PS4 uses C99 as the default C standard. 3216 if (T.isPS4()) 3217 LangStd = LangStandard::lang_gnu99; 3218 else 3219 LangStd = LangStandard::lang_gnu17; 3220 #endif 3221 break; 3222 case Language::ObjC: 3223 #if defined(CLANG_DEFAULT_STD_C) 3224 LangStd = CLANG_DEFAULT_STD_C; 3225 #else 3226 LangStd = LangStandard::lang_gnu11; 3227 #endif 3228 break; 3229 case Language::CXX: 3230 case Language::ObjCXX: 3231 #if defined(CLANG_DEFAULT_STD_CXX) 3232 LangStd = CLANG_DEFAULT_STD_CXX; 3233 #else 3234 LangStd = LangStandard::lang_gnucxx14; 3235 #endif 3236 break; 3237 case Language::RenderScript: 3238 LangStd = LangStandard::lang_c99; 3239 break; 3240 case Language::HIP: 3241 LangStd = LangStandard::lang_hip; 3242 break; 3243 case Language::HLSL: 3244 LangStd = LangStandard::lang_hlsl2021; 3245 break; 3246 } 3247 } 3248 3249 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3250 Opts.LangStd = LangStd; 3251 Opts.LineComment = Std.hasLineComments(); 3252 Opts.C99 = Std.isC99(); 3253 Opts.C11 = Std.isC11(); 3254 Opts.C17 = Std.isC17(); 3255 Opts.C2x = Std.isC2x(); 3256 Opts.CPlusPlus = Std.isCPlusPlus(); 3257 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 3258 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 3259 Opts.CPlusPlus17 = Std.isCPlusPlus17(); 3260 Opts.CPlusPlus20 = Std.isCPlusPlus20(); 3261 Opts.CPlusPlus2b = Std.isCPlusPlus2b(); 3262 Opts.GNUMode = Std.isGNUMode(); 3263 Opts.GNUCVersion = 0; 3264 Opts.HexFloats = Std.hasHexFloats(); 3265 Opts.ImplicitInt = Std.hasImplicitInt(); 3266 3267 Opts.HLSL = IK.getLanguage() == Language::HLSL; 3268 3269 // Set OpenCL Version. 3270 Opts.OpenCL = Std.isOpenCL(); 3271 if (LangStd == LangStandard::lang_opencl10) 3272 Opts.OpenCLVersion = 100; 3273 else if (LangStd == LangStandard::lang_opencl11) 3274 Opts.OpenCLVersion = 110; 3275 else if (LangStd == LangStandard::lang_opencl12) 3276 Opts.OpenCLVersion = 120; 3277 else if (LangStd == LangStandard::lang_opencl20) 3278 Opts.OpenCLVersion = 200; 3279 else if (LangStd == LangStandard::lang_opencl30) 3280 Opts.OpenCLVersion = 300; 3281 else if (LangStd == LangStandard::lang_openclcpp10) 3282 Opts.OpenCLCPlusPlusVersion = 100; 3283 else if (LangStd == LangStandard::lang_openclcpp2021) 3284 Opts.OpenCLCPlusPlusVersion = 202100; 3285 else if (LangStd == LangStandard::lang_hlsl2015) 3286 Opts.HLSLVersion = (unsigned)LangOptions::HLSL_2015; 3287 else if (LangStd == LangStandard::lang_hlsl2016) 3288 Opts.HLSLVersion = (unsigned)LangOptions::HLSL_2016; 3289 else if (LangStd == LangStandard::lang_hlsl2017) 3290 Opts.HLSLVersion = (unsigned)LangOptions::HLSL_2017; 3291 else if (LangStd == LangStandard::lang_hlsl2018) 3292 Opts.HLSLVersion = (unsigned)LangOptions::HLSL_2018; 3293 else if (LangStd == LangStandard::lang_hlsl2021) 3294 Opts.HLSLVersion = (unsigned)LangOptions::HLSL_2021; 3295 else if (LangStd == LangStandard::lang_hlsl202x) 3296 Opts.HLSLVersion = (unsigned)LangOptions::HLSL_202x; 3297 3298 // OpenCL has some additional defaults. 3299 if (Opts.OpenCL) { 3300 Opts.AltiVec = 0; 3301 Opts.ZVector = 0; 3302 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 3303 Opts.OpenCLCPlusPlus = Opts.CPlusPlus; 3304 Opts.OpenCLPipes = Opts.getOpenCLCompatibleVersion() == 200; 3305 Opts.OpenCLGenericAddressSpace = Opts.getOpenCLCompatibleVersion() == 200; 3306 3307 // Include default header file for OpenCL. 3308 if (Opts.IncludeDefaultHeader) { 3309 if (Opts.DeclareOpenCLBuiltins) { 3310 // Only include base header file for builtin types and constants. 3311 Includes.push_back("opencl-c-base.h"); 3312 } else { 3313 Includes.push_back("opencl-c.h"); 3314 } 3315 } 3316 } 3317 3318 Opts.HIP = IK.getLanguage() == Language::HIP; 3319 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP; 3320 if (Opts.HIP) { 3321 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it 3322 // fuses multiplication/addition instructions without contract flag from 3323 // device library functions in LLVM bitcode, which causes accuracy loss in 3324 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446. 3325 // For device library functions in bitcode to work, 'Strict' or 'Standard' 3326 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas' 3327 // FP contract option is used to allow fuse across statements in frontend 3328 // whereas respecting contract flag in backend. 3329 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 3330 } else if (Opts.CUDA) { 3331 if (T.isSPIRV()) { 3332 // Emit OpenCL version metadata in LLVM IR when targeting SPIR-V. 3333 Opts.OpenCLVersion = 200; 3334 } 3335 // Allow fuse across statements disregarding pragmas. 3336 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3337 } 3338 3339 Opts.RenderScript = IK.getLanguage() == Language::RenderScript; 3340 3341 // OpenCL, C++ and C2x have bool, true, false keywords. 3342 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus || Opts.C2x; 3343 3344 // OpenCL has half keyword 3345 Opts.Half = Opts.OpenCL; 3346 } 3347 3348 /// Check if input file kind and language standard are compatible. 3349 static bool IsInputCompatibleWithStandard(InputKind IK, 3350 const LangStandard &S) { 3351 switch (IK.getLanguage()) { 3352 case Language::Unknown: 3353 case Language::LLVM_IR: 3354 llvm_unreachable("should not parse language flags for this input"); 3355 3356 case Language::C: 3357 case Language::ObjC: 3358 case Language::RenderScript: 3359 return S.getLanguage() == Language::C; 3360 3361 case Language::OpenCL: 3362 return S.getLanguage() == Language::OpenCL || 3363 S.getLanguage() == Language::OpenCLCXX; 3364 3365 case Language::OpenCLCXX: 3366 return S.getLanguage() == Language::OpenCLCXX; 3367 3368 case Language::CXX: 3369 case Language::ObjCXX: 3370 return S.getLanguage() == Language::CXX; 3371 3372 case Language::CUDA: 3373 // FIXME: What -std= values should be permitted for CUDA compilations? 3374 return S.getLanguage() == Language::CUDA || 3375 S.getLanguage() == Language::CXX; 3376 3377 case Language::HIP: 3378 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3379 3380 case Language::Asm: 3381 // Accept (and ignore) all -std= values. 3382 // FIXME: The -std= value is not ignored; it affects the tokenization 3383 // and preprocessing rules if we're preprocessing this asm input. 3384 return true; 3385 3386 case Language::HLSL: 3387 return S.getLanguage() == Language::HLSL; 3388 } 3389 3390 llvm_unreachable("unexpected input language"); 3391 } 3392 3393 /// Get language name for given input kind. 3394 static StringRef GetInputKindName(InputKind IK) { 3395 switch (IK.getLanguage()) { 3396 case Language::C: 3397 return "C"; 3398 case Language::ObjC: 3399 return "Objective-C"; 3400 case Language::CXX: 3401 return "C++"; 3402 case Language::ObjCXX: 3403 return "Objective-C++"; 3404 case Language::OpenCL: 3405 return "OpenCL"; 3406 case Language::OpenCLCXX: 3407 return "C++ for OpenCL"; 3408 case Language::CUDA: 3409 return "CUDA"; 3410 case Language::RenderScript: 3411 return "RenderScript"; 3412 case Language::HIP: 3413 return "HIP"; 3414 3415 case Language::Asm: 3416 return "Asm"; 3417 case Language::LLVM_IR: 3418 return "LLVM IR"; 3419 3420 case Language::HLSL: 3421 return "HLSL"; 3422 3423 case Language::Unknown: 3424 break; 3425 } 3426 llvm_unreachable("unknown input language"); 3427 } 3428 3429 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3430 SmallVectorImpl<const char *> &Args, 3431 StringAllocator SA, 3432 const llvm::Triple &T, InputKind IK) { 3433 if (IK.getFormat() == InputKind::Precompiled || 3434 IK.getLanguage() == Language::LLVM_IR) { 3435 if (Opts.ObjCAutoRefCount) 3436 GenerateArg(Args, OPT_fobjc_arc, SA); 3437 if (Opts.PICLevel != 0) 3438 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3439 if (Opts.PIE) 3440 GenerateArg(Args, OPT_pic_is_pie, SA); 3441 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3442 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3443 3444 return; 3445 } 3446 3447 OptSpecifier StdOpt; 3448 switch (Opts.LangStd) { 3449 case LangStandard::lang_opencl10: 3450 case LangStandard::lang_opencl11: 3451 case LangStandard::lang_opencl12: 3452 case LangStandard::lang_opencl20: 3453 case LangStandard::lang_opencl30: 3454 case LangStandard::lang_openclcpp10: 3455 case LangStandard::lang_openclcpp2021: 3456 StdOpt = OPT_cl_std_EQ; 3457 break; 3458 default: 3459 StdOpt = OPT_std_EQ; 3460 break; 3461 } 3462 3463 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3464 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3465 3466 if (Opts.IncludeDefaultHeader) 3467 GenerateArg(Args, OPT_finclude_default_header, SA); 3468 if (Opts.DeclareOpenCLBuiltins) 3469 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3470 3471 const LangOptions *LangOpts = &Opts; 3472 3473 #define LANG_OPTION_WITH_MARSHALLING( \ 3474 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3475 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3476 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3477 MERGER, EXTRACTOR, TABLE_INDEX) \ 3478 GENERATE_OPTION_WITH_MARSHALLING( \ 3479 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3480 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3481 #include "clang/Driver/Options.inc" 3482 #undef LANG_OPTION_WITH_MARSHALLING 3483 3484 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3485 3486 if (Opts.ObjC) { 3487 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3488 3489 if (Opts.GC == LangOptions::GCOnly) 3490 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3491 else if (Opts.GC == LangOptions::HybridGC) 3492 GenerateArg(Args, OPT_fobjc_gc, SA); 3493 else if (Opts.ObjCAutoRefCount == 1) 3494 GenerateArg(Args, OPT_fobjc_arc, SA); 3495 3496 if (Opts.ObjCWeakRuntime) 3497 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3498 3499 if (Opts.ObjCWeak) 3500 GenerateArg(Args, OPT_fobjc_weak, SA); 3501 3502 if (Opts.ObjCSubscriptingLegacyRuntime) 3503 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3504 } 3505 3506 if (Opts.GNUCVersion != 0) { 3507 unsigned Major = Opts.GNUCVersion / 100 / 100; 3508 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3509 unsigned Patch = Opts.GNUCVersion % 100; 3510 GenerateArg(Args, OPT_fgnuc_version_EQ, 3511 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3512 } 3513 3514 if (Opts.IgnoreXCOFFVisibility) 3515 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3516 3517 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3518 GenerateArg(Args, OPT_ftrapv, SA); 3519 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3520 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3521 GenerateArg(Args, OPT_fwrapv, SA); 3522 } 3523 3524 if (Opts.MSCompatibilityVersion != 0) { 3525 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3526 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3527 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3528 GenerateArg(Args, OPT_fms_compatibility_version, 3529 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3530 } 3531 3532 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3533 if (!Opts.Trigraphs) 3534 GenerateArg(Args, OPT_fno_trigraphs, SA); 3535 } else { 3536 if (Opts.Trigraphs) 3537 GenerateArg(Args, OPT_ftrigraphs, SA); 3538 } 3539 3540 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3541 GenerateArg(Args, OPT_fblocks, SA); 3542 3543 if (Opts.ConvergentFunctions && 3544 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3545 GenerateArg(Args, OPT_fconvergent_functions, SA); 3546 3547 if (Opts.NoBuiltin && !Opts.Freestanding) 3548 GenerateArg(Args, OPT_fno_builtin, SA); 3549 3550 if (!Opts.NoBuiltin) 3551 for (const auto &Func : Opts.NoBuiltinFuncs) 3552 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3553 3554 if (Opts.LongDoubleSize == 128) 3555 GenerateArg(Args, OPT_mlong_double_128, SA); 3556 else if (Opts.LongDoubleSize == 64) 3557 GenerateArg(Args, OPT_mlong_double_64, SA); 3558 else if (Opts.LongDoubleSize == 80) 3559 GenerateArg(Args, OPT_mlong_double_80, SA); 3560 3561 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3562 3563 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3564 // '-fopenmp-targets='. 3565 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3566 GenerateArg(Args, OPT_fopenmp, SA); 3567 3568 if (Opts.OpenMP != 50) 3569 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3570 3571 if (!Opts.OpenMPUseTLS) 3572 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3573 3574 if (Opts.OpenMPIsDevice) 3575 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3576 3577 if (Opts.OpenMPIRBuilder) 3578 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3579 } 3580 3581 if (Opts.OpenMPSimd) { 3582 GenerateArg(Args, OPT_fopenmp_simd, SA); 3583 3584 if (Opts.OpenMP != 50) 3585 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3586 } 3587 3588 if (Opts.OpenMPThreadSubscription) 3589 GenerateArg(Args, OPT_fopenmp_assume_threads_oversubscription, SA); 3590 3591 if (Opts.OpenMPTeamSubscription) 3592 GenerateArg(Args, OPT_fopenmp_assume_teams_oversubscription, SA); 3593 3594 if (Opts.OpenMPTargetDebug != 0) 3595 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3596 Twine(Opts.OpenMPTargetDebug), SA); 3597 3598 if (Opts.OpenMPCUDANumSMs != 0) 3599 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3600 Twine(Opts.OpenMPCUDANumSMs), SA); 3601 3602 if (Opts.OpenMPCUDABlocksPerSM != 0) 3603 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3604 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3605 3606 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3607 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3608 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3609 3610 if (!Opts.OMPTargetTriples.empty()) { 3611 std::string Targets; 3612 llvm::raw_string_ostream OS(Targets); 3613 llvm::interleave( 3614 Opts.OMPTargetTriples, OS, 3615 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3616 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3617 } 3618 3619 if (!Opts.OMPHostIRFile.empty()) 3620 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3621 3622 if (Opts.OpenMPCUDAMode) 3623 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3624 3625 if (Opts.OpenMPCUDAForceFullRuntime) 3626 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA); 3627 3628 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3629 // generated from CodeGenOptions. 3630 3631 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3632 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3633 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3634 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3635 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3636 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3637 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3638 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3639 3640 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3641 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3642 3643 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3644 for (const std::string &F : Opts.NoSanitizeFiles) 3645 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3646 3647 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3648 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3649 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3650 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3651 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3652 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3653 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3654 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3655 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3656 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3657 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3658 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3659 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3660 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3661 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver13) 3662 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "13.0", SA); 3663 3664 if (Opts.getSignReturnAddressScope() == 3665 LangOptions::SignReturnAddressScopeKind::All) 3666 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3667 else if (Opts.getSignReturnAddressScope() == 3668 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3669 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3670 3671 if (Opts.getSignReturnAddressKey() == 3672 LangOptions::SignReturnAddressKeyKind::BKey) 3673 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3674 3675 if (Opts.CXXABI) 3676 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3677 SA); 3678 3679 if (Opts.RelativeCXXABIVTables) 3680 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3681 else 3682 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3683 3684 for (const auto &MP : Opts.MacroPrefixMap) 3685 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3686 } 3687 3688 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3689 InputKind IK, const llvm::Triple &T, 3690 std::vector<std::string> &Includes, 3691 DiagnosticsEngine &Diags) { 3692 unsigned NumErrorsBefore = Diags.getNumErrors(); 3693 3694 if (IK.getFormat() == InputKind::Precompiled || 3695 IK.getLanguage() == Language::LLVM_IR) { 3696 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3697 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3698 // what the input type is. 3699 if (Args.hasArg(OPT_fobjc_arc)) 3700 Opts.ObjCAutoRefCount = 1; 3701 // PICLevel and PIELevel are needed during code generation and this should 3702 // be set regardless of the input type. 3703 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3704 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3705 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3706 Diags, Opts.Sanitize); 3707 3708 return Diags.getNumErrors() == NumErrorsBefore; 3709 } 3710 3711 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3712 // FIXME: Should we really be parsing this for an Language::Asm input? 3713 3714 // FIXME: Cleanup per-file based stuff. 3715 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3716 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3717 LangStd = LangStandard::getLangKind(A->getValue()); 3718 if (LangStd == LangStandard::lang_unspecified) { 3719 Diags.Report(diag::err_drv_invalid_value) 3720 << A->getAsString(Args) << A->getValue(); 3721 // Report supported standards with short description. 3722 for (unsigned KindValue = 0; 3723 KindValue != LangStandard::lang_unspecified; 3724 ++KindValue) { 3725 const LangStandard &Std = LangStandard::getLangStandardForKind( 3726 static_cast<LangStandard::Kind>(KindValue)); 3727 if (IsInputCompatibleWithStandard(IK, Std)) { 3728 auto Diag = Diags.Report(diag::note_drv_use_standard); 3729 Diag << Std.getName() << Std.getDescription(); 3730 unsigned NumAliases = 0; 3731 #define LANGSTANDARD(id, name, lang, desc, features) 3732 #define LANGSTANDARD_ALIAS(id, alias) \ 3733 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3734 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3735 #include "clang/Basic/LangStandards.def" 3736 Diag << NumAliases; 3737 #define LANGSTANDARD(id, name, lang, desc, features) 3738 #define LANGSTANDARD_ALIAS(id, alias) \ 3739 if (KindValue == LangStandard::lang_##id) Diag << alias; 3740 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3741 #include "clang/Basic/LangStandards.def" 3742 } 3743 } 3744 } else { 3745 // Valid standard, check to make sure language and standard are 3746 // compatible. 3747 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3748 if (!IsInputCompatibleWithStandard(IK, Std)) { 3749 Diags.Report(diag::err_drv_argument_not_allowed_with) 3750 << A->getAsString(Args) << GetInputKindName(IK); 3751 } 3752 } 3753 } 3754 3755 // -cl-std only applies for OpenCL language standards. 3756 // Override the -std option in this case. 3757 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3758 LangStandard::Kind OpenCLLangStd 3759 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3760 .Cases("cl", "CL", LangStandard::lang_opencl10) 3761 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3762 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3763 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3764 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3765 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3766 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3767 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3768 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3769 .Default(LangStandard::lang_unspecified); 3770 3771 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3772 Diags.Report(diag::err_drv_invalid_value) 3773 << A->getAsString(Args) << A->getValue(); 3774 } 3775 else 3776 LangStd = OpenCLLangStd; 3777 } 3778 3779 // These need to be parsed now. They are used to set OpenCL defaults. 3780 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3781 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3782 3783 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd); 3784 3785 // The key paths of codegen options defined in Options.td start with 3786 // "LangOpts->". Let's provide the expected variable name and type. 3787 LangOptions *LangOpts = &Opts; 3788 3789 #define LANG_OPTION_WITH_MARSHALLING( \ 3790 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3791 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3792 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3793 MERGER, EXTRACTOR, TABLE_INDEX) \ 3794 PARSE_OPTION_WITH_MARSHALLING( \ 3795 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3796 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3797 #include "clang/Driver/Options.inc" 3798 #undef LANG_OPTION_WITH_MARSHALLING 3799 3800 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3801 StringRef Name = A->getValue(); 3802 if (Name == "full" || Name == "branch") { 3803 Opts.CFProtectionBranch = 1; 3804 } 3805 } 3806 3807 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3808 !Args.hasArg(OPT_sycl_std_EQ)) { 3809 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3810 // provide -sycl-std=, we want to default it to whatever the default SYCL 3811 // version is. I could not find a way to express this with the options 3812 // tablegen because we still want this value to be SYCL_None when the user 3813 // is not in device or host mode. 3814 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3815 } 3816 3817 if (Opts.ObjC) { 3818 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3819 StringRef value = arg->getValue(); 3820 if (Opts.ObjCRuntime.tryParse(value)) 3821 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3822 } 3823 3824 if (Args.hasArg(OPT_fobjc_gc_only)) 3825 Opts.setGC(LangOptions::GCOnly); 3826 else if (Args.hasArg(OPT_fobjc_gc)) 3827 Opts.setGC(LangOptions::HybridGC); 3828 else if (Args.hasArg(OPT_fobjc_arc)) { 3829 Opts.ObjCAutoRefCount = 1; 3830 if (!Opts.ObjCRuntime.allowsARC()) 3831 Diags.Report(diag::err_arc_unsupported_on_runtime); 3832 } 3833 3834 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3835 // whether the feature is actually enabled. This is predominantly 3836 // determined by -fobjc-runtime, but we allow it to be overridden 3837 // from the command line for testing purposes. 3838 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3839 Opts.ObjCWeakRuntime = 1; 3840 else 3841 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3842 3843 // ObjCWeak determines whether __weak is actually enabled. 3844 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3845 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3846 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3847 assert(!Opts.ObjCWeak); 3848 } else if (Opts.getGC() != LangOptions::NonGC) { 3849 Diags.Report(diag::err_objc_weak_with_gc); 3850 } else if (!Opts.ObjCWeakRuntime) { 3851 Diags.Report(diag::err_objc_weak_unsupported); 3852 } else { 3853 Opts.ObjCWeak = 1; 3854 } 3855 } else if (Opts.ObjCAutoRefCount) { 3856 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3857 } 3858 3859 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3860 Opts.ObjCSubscriptingLegacyRuntime = 3861 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3862 } 3863 3864 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3865 // Check that the version has 1 to 3 components and the minor and patch 3866 // versions fit in two decimal digits. 3867 VersionTuple GNUCVer; 3868 bool Invalid = GNUCVer.tryParse(A->getValue()); 3869 unsigned Major = GNUCVer.getMajor(); 3870 unsigned Minor = GNUCVer.getMinor().getValueOr(0); 3871 unsigned Patch = GNUCVer.getSubminor().getValueOr(0); 3872 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3873 Diags.Report(diag::err_drv_invalid_value) 3874 << A->getAsString(Args) << A->getValue(); 3875 } 3876 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3877 } 3878 3879 // In AIX OS, the -mignore-xcoff-visibility is enable by default if there is 3880 // no -fvisibility=* option. 3881 // This is the reason why '-fvisibility' needs to be always generated: 3882 // its absence implies '-mignore-xcoff-visibility'. 3883 // 3884 // Suppose the original cc1 command line does contain '-fvisibility default': 3885 // '-mignore-xcoff-visibility' should not be implied. 3886 // * If '-fvisibility' is not generated (as most options with default values 3887 // don't), its absence would imply '-mignore-xcoff-visibility'. This changes 3888 // the command line semantics. 3889 // * If '-fvisibility' is generated regardless of its presence and value, 3890 // '-mignore-xcoff-visibility' won't be implied and the command line 3891 // semantics are kept intact. 3892 // 3893 // When the original cc1 command line does **not** contain '-fvisibility', 3894 // '-mignore-xcoff-visibility' is implied. The generated command line will 3895 // contain both '-fvisibility default' and '-mignore-xcoff-visibility' and 3896 // subsequent calls to `CreateFromArgs`/`generateCC1CommandLine` will always 3897 // produce the same arguments. 3898 3899 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) || 3900 !Args.hasArg(OPT_fvisibility))) 3901 Opts.IgnoreXCOFFVisibility = 1; 3902 3903 if (Args.hasArg(OPT_ftrapv)) { 3904 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3905 // Set the handler, if one is specified. 3906 Opts.OverflowHandler = 3907 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3908 } 3909 else if (Args.hasArg(OPT_fwrapv)) 3910 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3911 3912 Opts.MSCompatibilityVersion = 0; 3913 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3914 VersionTuple VT; 3915 if (VT.tryParse(A->getValue())) 3916 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3917 << A->getValue(); 3918 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3919 VT.getMinor().getValueOr(0) * 100000 + 3920 VT.getSubminor().getValueOr(0); 3921 } 3922 3923 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3924 // is specified, or -std is set to a conforming mode. 3925 // Trigraphs are disabled by default in c++1z onwards. 3926 // For z/OS, trigraphs are enabled by default (without regard to the above). 3927 Opts.Trigraphs = 3928 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3929 Opts.Trigraphs = 3930 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3931 3932 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3933 && Opts.OpenCLVersion == 200); 3934 3935 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3936 Opts.SYCLIsDevice || 3937 Args.hasArg(OPT_fconvergent_functions); 3938 3939 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3940 if (!Opts.NoBuiltin) 3941 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3942 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 3943 if (A->getOption().matches(options::OPT_mlong_double_64)) 3944 Opts.LongDoubleSize = 64; 3945 else if (A->getOption().matches(options::OPT_mlong_double_80)) 3946 Opts.LongDoubleSize = 80; 3947 else if (A->getOption().matches(options::OPT_mlong_double_128)) 3948 Opts.LongDoubleSize = 128; 3949 else 3950 Opts.LongDoubleSize = 0; 3951 } 3952 if (Opts.FastRelaxedMath) 3953 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3954 3955 llvm::sort(Opts.ModuleFeatures); 3956 3957 // -mrtd option 3958 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3959 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3960 Diags.Report(diag::err_drv_argument_not_allowed_with) 3961 << A->getSpelling() << "-fdefault-calling-conv"; 3962 else { 3963 if (T.getArch() != llvm::Triple::x86) 3964 Diags.Report(diag::err_drv_argument_not_allowed_with) 3965 << A->getSpelling() << T.getTriple(); 3966 else 3967 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3968 } 3969 } 3970 3971 // Check if -fopenmp is specified and set default version to 5.0. 3972 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3973 // Check if -fopenmp-simd is specified. 3974 bool IsSimdSpecified = 3975 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3976 /*Default=*/false); 3977 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3978 Opts.OpenMPUseTLS = 3979 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3980 Opts.OpenMPIsDevice = 3981 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3982 Opts.OpenMPIRBuilder = 3983 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3984 bool IsTargetSpecified = 3985 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3986 3987 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3988 3989 if (Opts.OpenMP || Opts.OpenMPSimd) { 3990 if (int Version = getLastArgIntValue( 3991 Args, OPT_fopenmp_version_EQ, 3992 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3993 Opts.OpenMP = Version; 3994 // Provide diagnostic when a given target is not expected to be an OpenMP 3995 // device or host. 3996 if (!Opts.OpenMPIsDevice) { 3997 switch (T.getArch()) { 3998 default: 3999 break; 4000 // Add unsupported host targets here: 4001 case llvm::Triple::nvptx: 4002 case llvm::Triple::nvptx64: 4003 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 4004 break; 4005 } 4006 } 4007 } 4008 4009 // Set the flag to prevent the implementation from emitting device exception 4010 // handling code for those requiring so. 4011 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 4012 Opts.OpenCLCPlusPlus) { 4013 4014 Opts.Exceptions = 0; 4015 Opts.CXXExceptions = 0; 4016 } 4017 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 4018 Opts.OpenMPCUDANumSMs = 4019 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 4020 Opts.OpenMPCUDANumSMs, Diags); 4021 Opts.OpenMPCUDABlocksPerSM = 4022 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 4023 Opts.OpenMPCUDABlocksPerSM, Diags); 4024 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 4025 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 4026 Opts.OpenMPCUDAReductionBufNum, Diags); 4027 } 4028 4029 // Set the value of the debugging flag used in the new offloading device RTL. 4030 // Set either by a specific value or to a default if not specified. 4031 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 4032 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 4033 Opts.OpenMPTargetDebug = getLastArgIntValue( 4034 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 4035 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 4036 Opts.OpenMPTargetDebug = 1; 4037 } 4038 4039 if (Opts.OpenMPIsDevice) { 4040 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 4041 Opts.OpenMPTeamSubscription = true; 4042 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 4043 Opts.OpenMPThreadSubscription = true; 4044 } 4045 4046 // Get the OpenMP target triples if any. 4047 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 4048 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 4049 auto getArchPtrSize = [](const llvm::Triple &T) { 4050 if (T.isArch16Bit()) 4051 return Arch16Bit; 4052 if (T.isArch32Bit()) 4053 return Arch32Bit; 4054 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 4055 return Arch64Bit; 4056 }; 4057 4058 for (unsigned i = 0; i < A->getNumValues(); ++i) { 4059 llvm::Triple TT(A->getValue(i)); 4060 4061 if (TT.getArch() == llvm::Triple::UnknownArch || 4062 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 4063 TT.getArch() == llvm::Triple::nvptx || 4064 TT.getArch() == llvm::Triple::nvptx64 || 4065 TT.getArch() == llvm::Triple::amdgcn || 4066 TT.getArch() == llvm::Triple::x86 || 4067 TT.getArch() == llvm::Triple::x86_64)) 4068 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 4069 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 4070 Diags.Report(diag::err_drv_incompatible_omp_arch) 4071 << A->getValue(i) << T.str(); 4072 else 4073 Opts.OMPTargetTriples.push_back(TT); 4074 } 4075 } 4076 4077 // Get OpenMP host file path if any and report if a non existent file is 4078 // found 4079 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 4080 Opts.OMPHostIRFile = A->getValue(); 4081 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 4082 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 4083 << Opts.OMPHostIRFile; 4084 } 4085 4086 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 4087 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 4088 Args.hasArg(options::OPT_fopenmp_cuda_mode); 4089 4090 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 4091 Opts.OpenMPCUDAForceFullRuntime = 4092 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 4093 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime); 4094 4095 // FIXME: Eliminate this dependency. 4096 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 4097 OptSize = getOptimizationLevelSize(Args); 4098 Opts.Optimize = Opt != 0; 4099 Opts.OptimizeSize = OptSize != 0; 4100 4101 // This is the __NO_INLINE__ define, which just depends on things like the 4102 // optimization level and -fno-inline, not actually whether the backend has 4103 // inlining enabled. 4104 Opts.NoInlineDefine = !Opts.Optimize; 4105 if (Arg *InlineArg = Args.getLastArg( 4106 options::OPT_finline_functions, options::OPT_finline_hint_functions, 4107 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 4108 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 4109 Opts.NoInlineDefine = true; 4110 4111 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 4112 StringRef Val = A->getValue(); 4113 if (Val == "fast") 4114 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4115 else if (Val == "on") 4116 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 4117 else if (Val == "off") 4118 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 4119 else if (Val == "fast-honor-pragmas") 4120 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 4121 else 4122 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 4123 } 4124 4125 // Parse -fsanitize= arguments. 4126 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4127 Diags, Opts.Sanitize); 4128 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 4129 std::vector<std::string> systemIgnorelists = 4130 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 4131 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 4132 systemIgnorelists.begin(), 4133 systemIgnorelists.end()); 4134 4135 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 4136 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4137 4138 StringRef Ver = A->getValue(); 4139 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4140 unsigned Major, Minor = 0; 4141 4142 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4143 // y or y.0 (4 <= y <= current version). 4144 if (!VerParts.first.startswith("0") && 4145 !VerParts.first.getAsInteger(10, Major) && 4146 3 <= Major && Major <= CLANG_VERSION_MAJOR && 4147 (Major == 3 ? VerParts.second.size() == 1 && 4148 !VerParts.second.getAsInteger(10, Minor) 4149 : VerParts.first.size() == Ver.size() || 4150 VerParts.second == "0")) { 4151 // Got a valid version number. 4152 if (Major == 3 && Minor <= 8) 4153 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4154 else if (Major <= 4) 4155 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4156 else if (Major <= 6) 4157 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4158 else if (Major <= 7) 4159 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4160 else if (Major <= 9) 4161 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4162 else if (Major <= 11) 4163 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4164 else if (Major <= 12) 4165 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4166 else if (Major <= 13) 4167 Opts.setClangABICompat(LangOptions::ClangABI::Ver13); 4168 } else if (Ver != "latest") { 4169 Diags.Report(diag::err_drv_invalid_value) 4170 << A->getAsString(Args) << A->getValue(); 4171 } 4172 } 4173 4174 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4175 StringRef SignScope = A->getValue(); 4176 4177 if (SignScope.equals_insensitive("none")) 4178 Opts.setSignReturnAddressScope( 4179 LangOptions::SignReturnAddressScopeKind::None); 4180 else if (SignScope.equals_insensitive("all")) 4181 Opts.setSignReturnAddressScope( 4182 LangOptions::SignReturnAddressScopeKind::All); 4183 else if (SignScope.equals_insensitive("non-leaf")) 4184 Opts.setSignReturnAddressScope( 4185 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4186 else 4187 Diags.Report(diag::err_drv_invalid_value) 4188 << A->getAsString(Args) << SignScope; 4189 4190 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4191 StringRef SignKey = A->getValue(); 4192 if (!SignScope.empty() && !SignKey.empty()) { 4193 if (SignKey.equals_insensitive("a_key")) 4194 Opts.setSignReturnAddressKey( 4195 LangOptions::SignReturnAddressKeyKind::AKey); 4196 else if (SignKey.equals_insensitive("b_key")) 4197 Opts.setSignReturnAddressKey( 4198 LangOptions::SignReturnAddressKeyKind::BKey); 4199 else 4200 Diags.Report(diag::err_drv_invalid_value) 4201 << A->getAsString(Args) << SignKey; 4202 } 4203 } 4204 } 4205 4206 // The value can be empty, which indicates the system default should be used. 4207 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4208 if (!CXXABI.empty()) { 4209 if (!TargetCXXABI::isABI(CXXABI)) { 4210 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4211 } else { 4212 auto Kind = TargetCXXABI::getKind(CXXABI); 4213 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4214 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4215 else 4216 Opts.CXXABI = Kind; 4217 } 4218 } 4219 4220 Opts.RelativeCXXABIVTables = 4221 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4222 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4223 TargetCXXABI::usesRelativeVTables(T)); 4224 4225 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4226 auto Split = StringRef(A).split('='); 4227 Opts.MacroPrefixMap.insert( 4228 {std::string(Split.first), std::string(Split.second)}); 4229 } 4230 4231 // Error if -mvscale-min is unbounded. 4232 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4233 unsigned VScaleMin; 4234 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4235 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4236 } 4237 4238 return Diags.getNumErrors() == NumErrorsBefore; 4239 } 4240 4241 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4242 switch (Action) { 4243 case frontend::ASTDeclList: 4244 case frontend::ASTDump: 4245 case frontend::ASTPrint: 4246 case frontend::ASTView: 4247 case frontend::EmitAssembly: 4248 case frontend::EmitBC: 4249 case frontend::EmitHTML: 4250 case frontend::EmitLLVM: 4251 case frontend::EmitLLVMOnly: 4252 case frontend::EmitCodeGenOnly: 4253 case frontend::EmitObj: 4254 case frontend::ExtractAPI: 4255 case frontend::FixIt: 4256 case frontend::GenerateModule: 4257 case frontend::GenerateModuleInterface: 4258 case frontend::GenerateHeaderModule: 4259 case frontend::GenerateHeaderUnit: 4260 case frontend::GeneratePCH: 4261 case frontend::GenerateInterfaceStubs: 4262 case frontend::ParseSyntaxOnly: 4263 case frontend::ModuleFileInfo: 4264 case frontend::VerifyPCH: 4265 case frontend::PluginAction: 4266 case frontend::RewriteObjC: 4267 case frontend::RewriteTest: 4268 case frontend::RunAnalysis: 4269 case frontend::TemplightDump: 4270 case frontend::MigrateSource: 4271 return false; 4272 4273 case frontend::DumpCompilerOptions: 4274 case frontend::DumpRawTokens: 4275 case frontend::DumpTokens: 4276 case frontend::InitOnly: 4277 case frontend::PrintPreamble: 4278 case frontend::PrintPreprocessedInput: 4279 case frontend::RewriteMacros: 4280 case frontend::RunPreprocessorOnly: 4281 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4282 return true; 4283 } 4284 llvm_unreachable("invalid frontend action"); 4285 } 4286 4287 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4288 SmallVectorImpl<const char *> &Args, 4289 CompilerInvocation::StringAllocator SA, 4290 const LangOptions &LangOpts, 4291 const FrontendOptions &FrontendOpts, 4292 const CodeGenOptions &CodeGenOpts) { 4293 PreprocessorOptions *PreprocessorOpts = &Opts; 4294 4295 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4296 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4297 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4298 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4299 MERGER, EXTRACTOR, TABLE_INDEX) \ 4300 GENERATE_OPTION_WITH_MARSHALLING( \ 4301 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4302 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4303 #include "clang/Driver/Options.inc" 4304 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4305 4306 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4307 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4308 4309 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4310 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4311 4312 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4313 GenerateArg(Args, OPT_preamble_bytes_EQ, 4314 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4315 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4316 SA); 4317 4318 for (const auto &M : Opts.Macros) { 4319 // Don't generate __CET__ macro definitions. They are implied by the 4320 // -fcf-protection option that is generated elsewhere. 4321 if (M.first == "__CET__=1" && !M.second && 4322 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4323 continue; 4324 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4325 !CodeGenOpts.CFProtectionBranch) 4326 continue; 4327 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4328 CodeGenOpts.CFProtectionBranch) 4329 continue; 4330 4331 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4332 } 4333 4334 for (const auto &I : Opts.Includes) { 4335 // Don't generate OpenCL includes. They are implied by other flags that are 4336 // generated elsewhere. 4337 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4338 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4339 I == "opencl-c.h")) 4340 continue; 4341 4342 GenerateArg(Args, OPT_include, I, SA); 4343 } 4344 4345 for (const auto &CI : Opts.ChainedIncludes) 4346 GenerateArg(Args, OPT_chain_include, CI, SA); 4347 4348 for (const auto &RF : Opts.RemappedFiles) 4349 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4350 4351 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4352 // generated elsewhere. 4353 } 4354 4355 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4356 DiagnosticsEngine &Diags, 4357 frontend::ActionKind Action, 4358 const FrontendOptions &FrontendOpts) { 4359 unsigned NumErrorsBefore = Diags.getNumErrors(); 4360 4361 PreprocessorOptions *PreprocessorOpts = &Opts; 4362 4363 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4364 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4365 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4366 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4367 MERGER, EXTRACTOR, TABLE_INDEX) \ 4368 PARSE_OPTION_WITH_MARSHALLING( \ 4369 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4370 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4371 #include "clang/Driver/Options.inc" 4372 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4373 4374 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4375 Args.hasArg(OPT_pch_through_hdrstop_use); 4376 4377 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4378 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4379 4380 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4381 StringRef Value(A->getValue()); 4382 size_t Comma = Value.find(','); 4383 unsigned Bytes = 0; 4384 unsigned EndOfLine = 0; 4385 4386 if (Comma == StringRef::npos || 4387 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4388 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4389 Diags.Report(diag::err_drv_preamble_format); 4390 else { 4391 Opts.PrecompiledPreambleBytes.first = Bytes; 4392 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4393 } 4394 } 4395 4396 // Add the __CET__ macro if a CFProtection option is set. 4397 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4398 StringRef Name = A->getValue(); 4399 if (Name == "branch") 4400 Opts.addMacroDef("__CET__=1"); 4401 else if (Name == "return") 4402 Opts.addMacroDef("__CET__=2"); 4403 else if (Name == "full") 4404 Opts.addMacroDef("__CET__=3"); 4405 } 4406 4407 // Add macros from the command line. 4408 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4409 if (A->getOption().matches(OPT_D)) 4410 Opts.addMacroDef(A->getValue()); 4411 else 4412 Opts.addMacroUndef(A->getValue()); 4413 } 4414 4415 // Add the ordered list of -includes. 4416 for (const auto *A : Args.filtered(OPT_include)) 4417 Opts.Includes.emplace_back(A->getValue()); 4418 4419 for (const auto *A : Args.filtered(OPT_chain_include)) 4420 Opts.ChainedIncludes.emplace_back(A->getValue()); 4421 4422 for (const auto *A : Args.filtered(OPT_remap_file)) { 4423 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4424 4425 if (Split.second.empty()) { 4426 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4427 continue; 4428 } 4429 4430 Opts.addRemappedFile(Split.first, Split.second); 4431 } 4432 4433 // Always avoid lexing editor placeholders when we're just running the 4434 // preprocessor as we never want to emit the 4435 // "editor placeholder in source file" error in PP only mode. 4436 if (isStrictlyPreprocessorAction(Action)) 4437 Opts.LexEditorPlaceholders = false; 4438 4439 return Diags.getNumErrors() == NumErrorsBefore; 4440 } 4441 4442 static void GeneratePreprocessorOutputArgs( 4443 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4444 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4445 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4446 4447 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4448 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4449 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4450 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4451 MERGER, EXTRACTOR, TABLE_INDEX) \ 4452 GENERATE_OPTION_WITH_MARSHALLING( \ 4453 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4454 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4455 #include "clang/Driver/Options.inc" 4456 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4457 4458 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4459 if (Generate_dM) 4460 GenerateArg(Args, OPT_dM, SA); 4461 if (!Generate_dM && Opts.ShowMacros) 4462 GenerateArg(Args, OPT_dD, SA); 4463 if (Opts.DirectivesOnly) 4464 GenerateArg(Args, OPT_fdirectives_only, SA); 4465 } 4466 4467 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4468 ArgList &Args, DiagnosticsEngine &Diags, 4469 frontend::ActionKind Action) { 4470 unsigned NumErrorsBefore = Diags.getNumErrors(); 4471 4472 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4473 4474 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4475 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4476 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4477 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4478 MERGER, EXTRACTOR, TABLE_INDEX) \ 4479 PARSE_OPTION_WITH_MARSHALLING( \ 4480 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4481 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4482 #include "clang/Driver/Options.inc" 4483 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4484 4485 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4486 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4487 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4488 4489 return Diags.getNumErrors() == NumErrorsBefore; 4490 } 4491 4492 static void GenerateTargetArgs(const TargetOptions &Opts, 4493 SmallVectorImpl<const char *> &Args, 4494 CompilerInvocation::StringAllocator SA) { 4495 const TargetOptions *TargetOpts = &Opts; 4496 #define TARGET_OPTION_WITH_MARSHALLING( \ 4497 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4498 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4499 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4500 MERGER, EXTRACTOR, TABLE_INDEX) \ 4501 GENERATE_OPTION_WITH_MARSHALLING( \ 4502 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4503 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4504 #include "clang/Driver/Options.inc" 4505 #undef TARGET_OPTION_WITH_MARSHALLING 4506 4507 if (!Opts.SDKVersion.empty()) 4508 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4509 SA); 4510 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4511 GenerateArg(Args, OPT_darwin_target_variant_sdk_version_EQ, 4512 Opts.DarwinTargetVariantSDKVersion.getAsString(), SA); 4513 } 4514 4515 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4516 DiagnosticsEngine &Diags) { 4517 unsigned NumErrorsBefore = Diags.getNumErrors(); 4518 4519 TargetOptions *TargetOpts = &Opts; 4520 4521 #define TARGET_OPTION_WITH_MARSHALLING( \ 4522 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4523 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4524 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4525 MERGER, EXTRACTOR, TABLE_INDEX) \ 4526 PARSE_OPTION_WITH_MARSHALLING( \ 4527 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4528 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4529 #include "clang/Driver/Options.inc" 4530 #undef TARGET_OPTION_WITH_MARSHALLING 4531 4532 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4533 llvm::VersionTuple Version; 4534 if (Version.tryParse(A->getValue())) 4535 Diags.Report(diag::err_drv_invalid_value) 4536 << A->getAsString(Args) << A->getValue(); 4537 else 4538 Opts.SDKVersion = Version; 4539 } 4540 if (Arg *A = 4541 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4542 llvm::VersionTuple Version; 4543 if (Version.tryParse(A->getValue())) 4544 Diags.Report(diag::err_drv_invalid_value) 4545 << A->getAsString(Args) << A->getValue(); 4546 else 4547 Opts.DarwinTargetVariantSDKVersion = Version; 4548 } 4549 4550 return Diags.getNumErrors() == NumErrorsBefore; 4551 } 4552 4553 bool CompilerInvocation::CreateFromArgsImpl( 4554 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4555 DiagnosticsEngine &Diags, const char *Argv0) { 4556 unsigned NumErrorsBefore = Diags.getNumErrors(); 4557 4558 // Parse the arguments. 4559 const OptTable &Opts = getDriverOptTable(); 4560 const unsigned IncludedFlagsBitmask = options::CC1Option; 4561 unsigned MissingArgIndex, MissingArgCount; 4562 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4563 MissingArgCount, IncludedFlagsBitmask); 4564 LangOptions &LangOpts = *Res.getLangOpts(); 4565 4566 // Check for missing argument error. 4567 if (MissingArgCount) 4568 Diags.Report(diag::err_drv_missing_argument) 4569 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4570 4571 // Issue errors on unknown arguments. 4572 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4573 auto ArgString = A->getAsString(Args); 4574 std::string Nearest; 4575 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4576 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4577 else 4578 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4579 << ArgString << Nearest; 4580 } 4581 4582 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4583 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4584 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4585 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4586 /*DefaultDiagColor=*/false); 4587 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4588 // FIXME: We shouldn't have to pass the DashX option around here 4589 InputKind DashX = Res.getFrontendOpts().DashX; 4590 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4591 llvm::Triple T(Res.getTargetOpts().Triple); 4592 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4593 Res.getFileSystemOpts().WorkingDir); 4594 4595 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4596 Diags); 4597 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4598 LangOpts.ObjCExceptions = 1; 4599 4600 if (LangOpts.CUDA) { 4601 // During CUDA device-side compilation, the aux triple is the 4602 // triple used for host compilation. 4603 if (LangOpts.CUDAIsDevice) 4604 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4605 } 4606 4607 // Set the triple of the host for OpenMP device compile. 4608 if (LangOpts.OpenMPIsDevice) 4609 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4610 4611 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4612 Res.getFrontendOpts().OutputFile, LangOpts); 4613 4614 // FIXME: Override value name discarding when asan or msan is used because the 4615 // backend passes depend on the name of the alloca in order to print out 4616 // names. 4617 Res.getCodeGenOpts().DiscardValueNames &= 4618 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4619 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4620 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4621 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4622 4623 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4624 Res.getFrontendOpts().ProgramAction, 4625 Res.getFrontendOpts()); 4626 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4627 Res.getFrontendOpts().ProgramAction); 4628 4629 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4630 Res.getFrontendOpts().ProgramAction, 4631 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4632 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4633 Res.getDependencyOutputOpts().Targets.empty()) 4634 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4635 4636 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4637 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4638 !Res.getLangOpts()->Sanitize.empty()) { 4639 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4640 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4641 } 4642 4643 // Store the command-line for using in the CodeView backend. 4644 Res.getCodeGenOpts().Argv0 = Argv0; 4645 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4646 4647 FixupInvocation(Res, Diags, Args, DashX); 4648 4649 return Diags.getNumErrors() == NumErrorsBefore; 4650 } 4651 4652 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4653 ArrayRef<const char *> CommandLineArgs, 4654 DiagnosticsEngine &Diags, 4655 const char *Argv0) { 4656 CompilerInvocation DummyInvocation; 4657 4658 return RoundTrip( 4659 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4660 DiagnosticsEngine &Diags, const char *Argv0) { 4661 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4662 }, 4663 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4664 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); }, 4665 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4666 } 4667 4668 std::string CompilerInvocation::getModuleHash() const { 4669 // FIXME: Consider using SHA1 instead of MD5. 4670 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4671 4672 // Note: For QoI reasons, the things we use as a hash here should all be 4673 // dumped via the -module-info flag. 4674 4675 // Start the signature with the compiler version. 4676 HBuilder.add(getClangFullRepositoryVersion()); 4677 4678 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4679 // and getClangFullRepositoryVersion() doesn't include git revision. 4680 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4681 4682 // Extend the signature with the language options 4683 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4684 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4685 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4686 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4687 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4688 #include "clang/Basic/LangOptions.def" 4689 4690 HBuilder.addRange(LangOpts->ModuleFeatures); 4691 4692 HBuilder.add(LangOpts->ObjCRuntime); 4693 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4694 4695 // Extend the signature with the target options. 4696 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4697 TargetOpts->ABI); 4698 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4699 4700 // Extend the signature with preprocessor options. 4701 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4702 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4703 4704 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4705 for (const auto &Macro : getPreprocessorOpts().Macros) { 4706 // If we're supposed to ignore this macro for the purposes of modules, 4707 // don't put it into the hash. 4708 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4709 // Check whether we're ignoring this macro. 4710 StringRef MacroDef = Macro.first; 4711 if (hsOpts.ModulesIgnoreMacros.count( 4712 llvm::CachedHashString(MacroDef.split('=').first))) 4713 continue; 4714 } 4715 4716 HBuilder.add(Macro); 4717 } 4718 4719 // Extend the signature with the sysroot and other header search options. 4720 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4721 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4722 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4723 hsOpts.ModulesValidateDiagnosticOptions); 4724 HBuilder.add(hsOpts.ResourceDir); 4725 4726 if (hsOpts.ModulesStrictContextHash) { 4727 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4728 HBuilder.addRange(hsOpts.UserEntries); 4729 4730 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4731 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4732 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4733 HBuilder.add(diagOpts.get##Name()); 4734 #include "clang/Basic/DiagnosticOptions.def" 4735 #undef DIAGOPT 4736 #undef ENUM_DIAGOPT 4737 } 4738 4739 // Extend the signature with the user build path. 4740 HBuilder.add(hsOpts.ModuleUserBuildPath); 4741 4742 // Extend the signature with the module file extensions. 4743 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4744 ext->hashExtension(HBuilder); 4745 4746 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4747 // affects the debug info in the PCM. 4748 if (getCodeGenOpts().DebugTypeExtRefs) 4749 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4750 4751 // Extend the signature with the enabled sanitizers, if at least one is 4752 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4753 SanitizerSet SanHash = LangOpts->Sanitize; 4754 SanHash.clear(getPPTransparentSanitizers()); 4755 if (!SanHash.empty()) 4756 HBuilder.add(SanHash.Mask); 4757 4758 llvm::MD5::MD5Result Result; 4759 HBuilder.getHasher().final(Result); 4760 uint64_t Hash = Result.high() ^ Result.low(); 4761 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4762 } 4763 4764 void CompilerInvocation::generateCC1CommandLine( 4765 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4766 llvm::Triple T(TargetOpts->Triple); 4767 4768 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4769 GenerateMigratorArgs(MigratorOpts, Args, SA); 4770 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4771 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4772 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4773 GenerateTargetArgs(*TargetOpts, Args, SA); 4774 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4775 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4776 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4777 &*LangOpts); 4778 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4779 CodeGenOpts); 4780 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4781 FrontendOpts.ProgramAction); 4782 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4783 } 4784 4785 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4786 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4787 DiagnosticsEngine &Diags) { 4788 return createVFSFromCompilerInvocation(CI, Diags, 4789 llvm::vfs::getRealFileSystem()); 4790 } 4791 4792 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4793 clang::createVFSFromCompilerInvocation( 4794 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4795 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4796 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 4797 return BaseFS; 4798 4799 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4800 // earlier vfs files are on the bottom 4801 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 4802 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4803 Result->getBufferForFile(File); 4804 if (!Buffer) { 4805 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4806 continue; 4807 } 4808 4809 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4810 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4811 /*DiagContext*/ nullptr, Result); 4812 if (!FS) { 4813 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4814 continue; 4815 } 4816 4817 Result = FS; 4818 } 4819 return Result; 4820 } 4821