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