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