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/STLExtras.h" 56 #include "llvm/ADT/SmallString.h" 57 #include "llvm/ADT/SmallVector.h" 58 #include "llvm/ADT/StringRef.h" 59 #include "llvm/ADT/StringSwitch.h" 60 #include "llvm/ADT/Twine.h" 61 #include "llvm/Config/llvm-config.h" 62 #include "llvm/IR/DebugInfoMetadata.h" 63 #include "llvm/Linker/Linker.h" 64 #include "llvm/MC/MCTargetOptions.h" 65 #include "llvm/Option/Arg.h" 66 #include "llvm/Option/ArgList.h" 67 #include "llvm/Option/OptSpecifier.h" 68 #include "llvm/Option/OptTable.h" 69 #include "llvm/Option/Option.h" 70 #include "llvm/ProfileData/InstrProfReader.h" 71 #include "llvm/Remarks/HotnessThresholdParser.h" 72 #include "llvm/Support/CodeGen.h" 73 #include "llvm/Support/Compiler.h" 74 #include "llvm/Support/Error.h" 75 #include "llvm/Support/ErrorHandling.h" 76 #include "llvm/Support/ErrorOr.h" 77 #include "llvm/Support/FileSystem.h" 78 #include "llvm/Support/HashBuilder.h" 79 #include "llvm/Support/Host.h" 80 #include "llvm/Support/MathExtras.h" 81 #include "llvm/Support/MemoryBuffer.h" 82 #include "llvm/Support/Path.h" 83 #include "llvm/Support/Process.h" 84 #include "llvm/Support/Regex.h" 85 #include "llvm/Support/VersionTuple.h" 86 #include "llvm/Support/VirtualFileSystem.h" 87 #include "llvm/Support/raw_ostream.h" 88 #include "llvm/Target/TargetOptions.h" 89 #include "llvm/TargetParser/Triple.h" 90 #include <algorithm> 91 #include <atomic> 92 #include <cassert> 93 #include <cstddef> 94 #include <cstring> 95 #include <ctime> 96 #include <fstream> 97 #include <limits> 98 #include <memory> 99 #include <optional> 100 #include <string> 101 #include <tuple> 102 #include <type_traits> 103 #include <utility> 104 #include <vector> 105 106 using namespace clang; 107 using namespace driver; 108 using namespace options; 109 using namespace llvm::opt; 110 111 //===----------------------------------------------------------------------===// 112 // Helpers. 113 //===----------------------------------------------------------------------===// 114 115 // Parse misexpect tolerance argument value. 116 // Valid option values are integers in the range [0, 100) 117 static Expected<std::optional<uint32_t>> parseToleranceOption(StringRef Arg) { 118 uint32_t Val; 119 if (Arg.getAsInteger(10, Val)) 120 return llvm::createStringError(llvm::inconvertibleErrorCode(), 121 "Not an integer: %s", Arg.data()); 122 return Val; 123 } 124 125 //===----------------------------------------------------------------------===// 126 // Initialization. 127 //===----------------------------------------------------------------------===// 128 129 CompilerInvocationRefBase::CompilerInvocationRefBase() 130 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 131 DiagnosticOpts(new DiagnosticOptions()), 132 HeaderSearchOpts(new HeaderSearchOptions()), 133 PreprocessorOpts(new PreprocessorOptions()), 134 AnalyzerOpts(new AnalyzerOptions()) {} 135 136 CompilerInvocationRefBase::CompilerInvocationRefBase( 137 const CompilerInvocationRefBase &X) 138 : LangOpts(new LangOptions(*X.getLangOpts())), 139 TargetOpts(new TargetOptions(X.getTargetOpts())), 140 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 141 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 142 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())), 143 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {} 144 145 CompilerInvocationRefBase::CompilerInvocationRefBase( 146 CompilerInvocationRefBase &&X) = default; 147 148 CompilerInvocationRefBase & 149 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) { 150 LangOpts.swap(X.LangOpts); 151 TargetOpts.swap(X.TargetOpts); 152 DiagnosticOpts.swap(X.DiagnosticOpts); 153 HeaderSearchOpts.swap(X.HeaderSearchOpts); 154 PreprocessorOpts.swap(X.PreprocessorOpts); 155 AnalyzerOpts.swap(X.AnalyzerOpts); 156 return *this; 157 } 158 159 CompilerInvocationRefBase & 160 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default; 161 162 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default; 163 164 //===----------------------------------------------------------------------===// 165 // Normalizers 166 //===----------------------------------------------------------------------===// 167 168 #define SIMPLE_ENUM_VALUE_TABLE 169 #include "clang/Driver/Options.inc" 170 #undef SIMPLE_ENUM_VALUE_TABLE 171 172 static std::optional<bool> normalizeSimpleFlag(OptSpecifier Opt, 173 unsigned TableIndex, 174 const ArgList &Args, 175 DiagnosticsEngine &Diags) { 176 if (Args.hasArg(Opt)) 177 return true; 178 return std::nullopt; 179 } 180 181 static std::optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, 182 unsigned, 183 const ArgList &Args, 184 DiagnosticsEngine &) { 185 if (Args.hasArg(Opt)) 186 return false; 187 return std::nullopt; 188 } 189 190 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but 191 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with 192 /// unnecessary template instantiations and just ignore it with a variadic 193 /// argument. 194 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args, 195 const char *Spelling, 196 CompilerInvocation::StringAllocator, 197 Option::OptionClass, unsigned, /*T*/...) { 198 Args.push_back(Spelling); 199 } 200 201 template <typename T> static constexpr bool is_uint64_t_convertible() { 202 return !std::is_same_v<T, uint64_t> && llvm::is_integral_or_enum<T>::value; 203 } 204 205 template <typename T, 206 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false> 207 static auto makeFlagToValueNormalizer(T Value) { 208 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args, 209 DiagnosticsEngine &) -> std::optional<T> { 210 if (Args.hasArg(Opt)) 211 return Value; 212 return std::nullopt; 213 }; 214 } 215 216 template <typename T, 217 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false> 218 static auto makeFlagToValueNormalizer(T Value) { 219 return makeFlagToValueNormalizer(uint64_t(Value)); 220 } 221 222 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue, 223 OptSpecifier OtherOpt) { 224 return [Value, OtherValue, 225 OtherOpt](OptSpecifier Opt, unsigned, const ArgList &Args, 226 DiagnosticsEngine &) -> std::optional<bool> { 227 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) { 228 return A->getOption().matches(Opt) ? Value : OtherValue; 229 } 230 return std::nullopt; 231 }; 232 } 233 234 static auto makeBooleanOptionDenormalizer(bool Value) { 235 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling, 236 CompilerInvocation::StringAllocator, Option::OptionClass, 237 unsigned, bool KeyPath) { 238 if (KeyPath == Value) 239 Args.push_back(Spelling); 240 }; 241 } 242 243 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args, 244 const char *Spelling, 245 CompilerInvocation::StringAllocator SA, 246 Option::OptionClass OptClass, unsigned, 247 const Twine &Value) { 248 switch (OptClass) { 249 case Option::SeparateClass: 250 case Option::JoinedOrSeparateClass: 251 case Option::JoinedAndSeparateClass: 252 Args.push_back(Spelling); 253 Args.push_back(SA(Value)); 254 break; 255 case Option::JoinedClass: 256 case Option::CommaJoinedClass: 257 Args.push_back(SA(Twine(Spelling) + Value)); 258 break; 259 default: 260 llvm_unreachable("Cannot denormalize an option with option class " 261 "incompatible with string denormalization."); 262 } 263 } 264 265 template <typename T> 266 static void 267 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling, 268 CompilerInvocation::StringAllocator SA, 269 Option::OptionClass OptClass, unsigned TableIndex, T Value) { 270 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value)); 271 } 272 273 static std::optional<SimpleEnumValue> 274 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) { 275 for (int I = 0, E = Table.Size; I != E; ++I) 276 if (Name == Table.Table[I].Name) 277 return Table.Table[I]; 278 279 return std::nullopt; 280 } 281 282 static std::optional<SimpleEnumValue> 283 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) { 284 for (int I = 0, E = Table.Size; I != E; ++I) 285 if (Value == Table.Table[I].Value) 286 return Table.Table[I]; 287 288 return std::nullopt; 289 } 290 291 static std::optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt, 292 unsigned TableIndex, 293 const ArgList &Args, 294 DiagnosticsEngine &Diags) { 295 assert(TableIndex < SimpleEnumValueTablesSize); 296 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 297 298 auto *Arg = Args.getLastArg(Opt); 299 if (!Arg) 300 return std::nullopt; 301 302 StringRef ArgValue = Arg->getValue(); 303 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue)) 304 return MaybeEnumVal->Value; 305 306 Diags.Report(diag::err_drv_invalid_value) 307 << Arg->getAsString(Args) << ArgValue; 308 return std::nullopt; 309 } 310 311 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args, 312 const char *Spelling, 313 CompilerInvocation::StringAllocator SA, 314 Option::OptionClass OptClass, 315 unsigned TableIndex, unsigned Value) { 316 assert(TableIndex < SimpleEnumValueTablesSize); 317 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex]; 318 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) { 319 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, 320 MaybeEnumVal->Name); 321 } else { 322 llvm_unreachable("The simple enum value was not correctly defined in " 323 "the tablegen option description"); 324 } 325 } 326 327 template <typename T> 328 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args, 329 const char *Spelling, 330 CompilerInvocation::StringAllocator SA, 331 Option::OptionClass OptClass, 332 unsigned TableIndex, T Value) { 333 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex, 334 static_cast<unsigned>(Value)); 335 } 336 337 static std::optional<std::string> normalizeString(OptSpecifier Opt, 338 int TableIndex, 339 const ArgList &Args, 340 DiagnosticsEngine &Diags) { 341 auto *Arg = Args.getLastArg(Opt); 342 if (!Arg) 343 return std::nullopt; 344 return std::string(Arg->getValue()); 345 } 346 347 template <typename IntTy> 348 static std::optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int, 349 const ArgList &Args, 350 DiagnosticsEngine &Diags) { 351 auto *Arg = Args.getLastArg(Opt); 352 if (!Arg) 353 return std::nullopt; 354 IntTy Res; 355 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) { 356 Diags.Report(diag::err_drv_invalid_int_value) 357 << Arg->getAsString(Args) << Arg->getValue(); 358 return std::nullopt; 359 } 360 return Res; 361 } 362 363 static std::optional<std::vector<std::string>> 364 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args, 365 DiagnosticsEngine &) { 366 return Args.getAllArgValues(Opt); 367 } 368 369 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args, 370 const char *Spelling, 371 CompilerInvocation::StringAllocator SA, 372 Option::OptionClass OptClass, 373 unsigned TableIndex, 374 const std::vector<std::string> &Values) { 375 switch (OptClass) { 376 case Option::CommaJoinedClass: { 377 std::string CommaJoinedValue; 378 if (!Values.empty()) { 379 CommaJoinedValue.append(Values.front()); 380 for (const std::string &Value : llvm::drop_begin(Values, 1)) { 381 CommaJoinedValue.append(","); 382 CommaJoinedValue.append(Value); 383 } 384 } 385 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass, 386 TableIndex, CommaJoinedValue); 387 break; 388 } 389 case Option::JoinedClass: 390 case Option::SeparateClass: 391 case Option::JoinedOrSeparateClass: 392 for (const std::string &Value : Values) 393 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value); 394 break; 395 default: 396 llvm_unreachable("Cannot denormalize an option with option class " 397 "incompatible with string vector denormalization."); 398 } 399 } 400 401 static std::optional<std::string> normalizeTriple(OptSpecifier Opt, 402 int TableIndex, 403 const ArgList &Args, 404 DiagnosticsEngine &Diags) { 405 auto *Arg = Args.getLastArg(Opt); 406 if (!Arg) 407 return std::nullopt; 408 return llvm::Triple::normalize(Arg->getValue()); 409 } 410 411 template <typename T, typename U> 412 static T mergeForwardValue(T KeyPath, U Value) { 413 return static_cast<T>(Value); 414 } 415 416 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) { 417 return KeyPath | Value; 418 } 419 420 template <typename T> static T extractForwardValue(T KeyPath) { 421 return KeyPath; 422 } 423 424 template <typename T, typename U, U Value> 425 static T extractMaskValue(T KeyPath) { 426 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T(); 427 } 428 429 #define PARSE_OPTION_WITH_MARSHALLING( \ 430 ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 431 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) \ 432 if ((FLAGS)&options::CC1Option) { \ 433 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \ 434 if (IMPLIED_CHECK) \ 435 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \ 436 if (SHOULD_PARSE) \ 437 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \ 438 KEYPATH = \ 439 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \ 440 } 441 442 // Capture the extracted value as a lambda argument to avoid potential issues 443 // with lifetime extension of the reference. 444 #define GENERATE_OPTION_WITH_MARSHALLING( \ 445 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \ 446 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \ 447 TABLE_INDEX) \ 448 if ((FLAGS)&options::CC1Option) { \ 449 [&](const auto &Extracted) { \ 450 if (ALWAYS_EMIT || \ 451 (Extracted != \ 452 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \ 453 : (DEFAULT_VALUE)))) \ 454 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \ 455 TABLE_INDEX, Extracted); \ 456 }(EXTRACTOR(KEYPATH)); \ 457 } 458 459 static StringRef GetInputKindName(InputKind IK); 460 461 static bool FixupInvocation(CompilerInvocation &Invocation, 462 DiagnosticsEngine &Diags, const ArgList &Args, 463 InputKind IK) { 464 unsigned NumErrorsBefore = Diags.getNumErrors(); 465 466 LangOptions &LangOpts = *Invocation.getLangOpts(); 467 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts(); 468 TargetOptions &TargetOpts = Invocation.getTargetOpts(); 469 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts(); 470 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument; 471 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents; 472 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents; 473 CodeGenOpts.DisableFree = FrontendOpts.DisableFree; 474 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex; 475 if (FrontendOpts.ShowStats) 476 CodeGenOpts.ClearASTBeforeBackend = false; 477 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage(); 478 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables; 479 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening; 480 LangOpts.CurrentModule = LangOpts.ModuleName; 481 482 llvm::Triple T(TargetOpts.Triple); 483 llvm::Triple::ArchType Arch = T.getArch(); 484 485 CodeGenOpts.CodeModel = TargetOpts.CodeModel; 486 487 if (LangOpts.getExceptionHandling() != 488 LangOptions::ExceptionHandlingKind::None && 489 T.isWindowsMSVCEnvironment()) 490 Diags.Report(diag::err_fe_invalid_exception_model) 491 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str(); 492 493 if (LangOpts.AppleKext && !LangOpts.CPlusPlus) 494 Diags.Report(diag::warn_c_kext); 495 496 if (LangOpts.NewAlignOverride && 497 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) { 498 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 499 Diags.Report(diag::err_fe_invalid_alignment) 500 << A->getAsString(Args) << A->getValue(); 501 LangOpts.NewAlignOverride = 0; 502 } 503 504 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host. 505 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost) 506 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device" 507 << "-fsycl-is-host"; 508 509 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus) 510 Diags.Report(diag::err_drv_argument_not_allowed_with) 511 << "-fgnu89-inline" << GetInputKindName(IK); 512 513 if (Args.hasArg(OPT_hlsl_entrypoint) && !LangOpts.HLSL) 514 Diags.Report(diag::err_drv_argument_not_allowed_with) 515 << "-hlsl-entry" << GetInputKindName(IK); 516 517 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP) 518 Diags.Report(diag::warn_ignored_hip_only_option) 519 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args); 520 521 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP) 522 Diags.Report(diag::warn_ignored_hip_only_option) 523 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args); 524 525 // When these options are used, the compiler is allowed to apply 526 // optimizations that may affect the final result. For example 527 // (x+y)+z is transformed to x+(y+z) but may not give the same 528 // final result; it's not value safe. 529 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF 530 // or NaN. Final result may then differ. An error is issued when the eval 531 // method is set with one of these options. 532 if (Args.hasArg(OPT_ffp_eval_method_EQ)) { 533 if (LangOpts.ApproxFunc) 534 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 0; 535 if (LangOpts.AllowFPReassoc) 536 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 1; 537 if (LangOpts.AllowRecip) 538 Diags.Report(diag::err_incompatible_fp_eval_method_options) << 2; 539 } 540 541 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 542 // This option should be deprecated for CL > 1.0 because 543 // this option was added for compatibility with OpenCL 1.0. 544 if (Args.getLastArg(OPT_cl_strict_aliasing) && 545 (LangOpts.getOpenCLCompatibleVersion() > 100)) 546 Diags.Report(diag::warn_option_invalid_ocl_version) 547 << LangOpts.getOpenCLVersionString() 548 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 549 550 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 551 auto DefaultCC = LangOpts.getDefaultCallingConv(); 552 553 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 554 DefaultCC == LangOptions::DCC_StdCall) && 555 Arch != llvm::Triple::x86; 556 emitError |= (DefaultCC == LangOptions::DCC_VectorCall || 557 DefaultCC == LangOptions::DCC_RegCall) && 558 !T.isX86(); 559 if (emitError) 560 Diags.Report(diag::err_drv_argument_not_allowed_with) 561 << A->getSpelling() << T.getTriple(); 562 } 563 564 return Diags.getNumErrors() == NumErrorsBefore; 565 } 566 567 //===----------------------------------------------------------------------===// 568 // Deserialization (from args) 569 //===----------------------------------------------------------------------===// 570 571 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 572 DiagnosticsEngine &Diags) { 573 unsigned DefaultOpt = llvm::CodeGenOpt::None; 574 if ((IK.getLanguage() == Language::OpenCL || 575 IK.getLanguage() == Language::OpenCLCXX) && 576 !Args.hasArg(OPT_cl_opt_disable)) 577 DefaultOpt = llvm::CodeGenOpt::Default; 578 579 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 580 if (A->getOption().matches(options::OPT_O0)) 581 return llvm::CodeGenOpt::None; 582 583 if (A->getOption().matches(options::OPT_Ofast)) 584 return llvm::CodeGenOpt::Aggressive; 585 586 assert(A->getOption().matches(options::OPT_O)); 587 588 StringRef S(A->getValue()); 589 if (S == "s" || S == "z") 590 return llvm::CodeGenOpt::Default; 591 592 if (S == "g") 593 return llvm::CodeGenOpt::Less; 594 595 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 596 } 597 598 return DefaultOpt; 599 } 600 601 static unsigned getOptimizationLevelSize(ArgList &Args) { 602 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 603 if (A->getOption().matches(options::OPT_O)) { 604 switch (A->getValue()[0]) { 605 default: 606 return 0; 607 case 's': 608 return 1; 609 case 'z': 610 return 2; 611 } 612 } 613 } 614 return 0; 615 } 616 617 static void GenerateArg(SmallVectorImpl<const char *> &Args, 618 llvm::opt::OptSpecifier OptSpecifier, 619 CompilerInvocation::StringAllocator SA) { 620 Option Opt = getDriverOptTable().getOption(OptSpecifier); 621 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 622 Option::OptionClass::FlagClass, 0); 623 } 624 625 static void GenerateArg(SmallVectorImpl<const char *> &Args, 626 llvm::opt::OptSpecifier OptSpecifier, 627 const Twine &Value, 628 CompilerInvocation::StringAllocator SA) { 629 Option Opt = getDriverOptTable().getOption(OptSpecifier); 630 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA, 631 Opt.getKind(), 0, Value); 632 } 633 634 // Parse command line arguments into CompilerInvocation. 635 using ParseFn = 636 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>, 637 DiagnosticsEngine &, const char *)>; 638 639 // Generate command line arguments from CompilerInvocation. 640 using GenerateFn = llvm::function_ref<void( 641 CompilerInvocation &, SmallVectorImpl<const char *> &, 642 CompilerInvocation::StringAllocator)>; 643 644 /// May perform round-trip of command line arguments. By default, the round-trip 645 /// is enabled in assert builds. This can be overwritten at run-time via the 646 /// "-round-trip-args" and "-no-round-trip-args" command line flags, or via the 647 /// ForceRoundTrip parameter. 648 /// 649 /// During round-trip, the command line arguments are parsed into a dummy 650 /// CompilerInvocation, which is used to generate the command line arguments 651 /// again. The real CompilerInvocation is then created by parsing the generated 652 /// arguments, not the original ones. This (in combination with tests covering 653 /// argument behavior) ensures the generated command line is complete (doesn't 654 /// drop/mangle any arguments). 655 /// 656 /// Finally, we check the command line that was used to create the real 657 /// CompilerInvocation instance. By default, we compare it to the command line 658 /// the real CompilerInvocation generates. This checks whether the generator is 659 /// deterministic. If \p CheckAgainstOriginalInvocation is enabled, we instead 660 /// compare it to the original command line to verify the original command-line 661 /// was canonical and can round-trip exactly. 662 static bool RoundTrip(ParseFn Parse, GenerateFn Generate, 663 CompilerInvocation &RealInvocation, 664 CompilerInvocation &DummyInvocation, 665 ArrayRef<const char *> CommandLineArgs, 666 DiagnosticsEngine &Diags, const char *Argv0, 667 bool CheckAgainstOriginalInvocation = false, 668 bool ForceRoundTrip = false) { 669 #ifndef NDEBUG 670 bool DoRoundTripDefault = true; 671 #else 672 bool DoRoundTripDefault = false; 673 #endif 674 675 bool DoRoundTrip = DoRoundTripDefault; 676 if (ForceRoundTrip) { 677 DoRoundTrip = true; 678 } else { 679 for (const auto *Arg : CommandLineArgs) { 680 if (Arg == StringRef("-round-trip-args")) 681 DoRoundTrip = true; 682 if (Arg == StringRef("-no-round-trip-args")) 683 DoRoundTrip = false; 684 } 685 } 686 687 // If round-trip was not requested, simply run the parser with the real 688 // invocation diagnostics. 689 if (!DoRoundTrip) 690 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 691 692 // Serializes quoted (and potentially escaped) arguments. 693 auto SerializeArgs = [](ArrayRef<const char *> Args) { 694 std::string Buffer; 695 llvm::raw_string_ostream OS(Buffer); 696 for (const char *Arg : Args) { 697 llvm::sys::printArg(OS, Arg, /*Quote=*/true); 698 OS << ' '; 699 } 700 OS.flush(); 701 return Buffer; 702 }; 703 704 // Setup a dummy DiagnosticsEngine. 705 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions()); 706 DummyDiags.setClient(new TextDiagnosticBuffer()); 707 708 // Run the first parse on the original arguments with the dummy invocation and 709 // diagnostics. 710 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) || 711 DummyDiags.getNumWarnings() != 0) { 712 // If the first parse did not succeed, it must be user mistake (invalid 713 // command line arguments). We won't be able to generate arguments that 714 // would reproduce the same result. Let's fail again with the real 715 // invocation and diagnostics, so all side-effects of parsing are visible. 716 unsigned NumWarningsBefore = Diags.getNumWarnings(); 717 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0); 718 if (!Success || Diags.getNumWarnings() != NumWarningsBefore) 719 return Success; 720 721 // Parse with original options and diagnostics succeeded even though it 722 // shouldn't have. Something is off. 723 Diags.Report(diag::err_cc1_round_trip_fail_then_ok); 724 Diags.Report(diag::note_cc1_round_trip_original) 725 << SerializeArgs(CommandLineArgs); 726 return false; 727 } 728 729 // Setup string allocator. 730 llvm::BumpPtrAllocator Alloc; 731 llvm::StringSaver StringPool(Alloc); 732 auto SA = [&StringPool](const Twine &Arg) { 733 return StringPool.save(Arg).data(); 734 }; 735 736 // Generate arguments from the dummy invocation. If Generate is the 737 // inverse of Parse, the newly generated arguments must have the same 738 // semantics as the original. 739 SmallVector<const char *> GeneratedArgs; 740 Generate(DummyInvocation, GeneratedArgs, SA); 741 742 // Run the second parse, now on the generated arguments, and with the real 743 // invocation and diagnostics. The result is what we will end up using for the 744 // rest of compilation, so if Generate is not inverse of Parse, something down 745 // the line will break. 746 bool Success2 = Parse(RealInvocation, GeneratedArgs, Diags, Argv0); 747 748 // The first parse on original arguments succeeded, but second parse of 749 // generated arguments failed. Something must be wrong with the generator. 750 if (!Success2) { 751 Diags.Report(diag::err_cc1_round_trip_ok_then_fail); 752 Diags.Report(diag::note_cc1_round_trip_generated) 753 << 1 << SerializeArgs(GeneratedArgs); 754 return false; 755 } 756 757 SmallVector<const char *> ComparisonArgs; 758 if (CheckAgainstOriginalInvocation) 759 // Compare against original arguments. 760 ComparisonArgs.assign(CommandLineArgs.begin(), CommandLineArgs.end()); 761 else 762 // Generate arguments again, this time from the options we will end up using 763 // for the rest of the compilation. 764 Generate(RealInvocation, ComparisonArgs, SA); 765 766 // Compares two lists of arguments. 767 auto Equal = [](const ArrayRef<const char *> A, 768 const ArrayRef<const char *> B) { 769 return std::equal(A.begin(), A.end(), B.begin(), B.end(), 770 [](const char *AElem, const char *BElem) { 771 return StringRef(AElem) == StringRef(BElem); 772 }); 773 }; 774 775 // If we generated different arguments from what we assume are two 776 // semantically equivalent CompilerInvocations, the Generate function may 777 // be non-deterministic. 778 if (!Equal(GeneratedArgs, ComparisonArgs)) { 779 Diags.Report(diag::err_cc1_round_trip_mismatch); 780 Diags.Report(diag::note_cc1_round_trip_generated) 781 << 1 << SerializeArgs(GeneratedArgs); 782 Diags.Report(diag::note_cc1_round_trip_generated) 783 << 2 << SerializeArgs(ComparisonArgs); 784 return false; 785 } 786 787 Diags.Report(diag::remark_cc1_round_trip_generated) 788 << 1 << SerializeArgs(GeneratedArgs); 789 Diags.Report(diag::remark_cc1_round_trip_generated) 790 << 2 << SerializeArgs(ComparisonArgs); 791 792 return Success2; 793 } 794 795 bool CompilerInvocation::checkCC1RoundTrip(ArrayRef<const char *> Args, 796 DiagnosticsEngine &Diags, 797 const char *Argv0) { 798 CompilerInvocation DummyInvocation1, DummyInvocation2; 799 return RoundTrip( 800 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 801 DiagnosticsEngine &Diags, const char *Argv0) { 802 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 803 }, 804 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 805 StringAllocator SA) { 806 Args.push_back("-cc1"); 807 Invocation.generateCC1CommandLine(Args, SA); 808 }, 809 DummyInvocation1, DummyInvocation2, Args, Diags, Argv0, 810 /*CheckAgainstOriginalInvocation=*/true, /*ForceRoundTrip=*/true); 811 } 812 813 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 814 OptSpecifier GroupWithValue, 815 std::vector<std::string> &Diagnostics) { 816 for (auto *A : Args.filtered(Group)) { 817 if (A->getOption().getKind() == Option::FlagClass) { 818 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 819 // its name (minus the "W" or "R" at the beginning) to the diagnostics. 820 Diagnostics.push_back( 821 std::string(A->getOption().getName().drop_front(1))); 822 } else if (A->getOption().matches(GroupWithValue)) { 823 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic 824 // group. Add only the group name to the diagnostics. 825 Diagnostics.push_back( 826 std::string(A->getOption().getName().drop_front(1).rtrim("=-"))); 827 } else { 828 // Otherwise, add its value (for OPT_W_Joined and similar). 829 Diagnostics.push_back(A->getValue()); 830 } 831 } 832 } 833 834 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr, 835 // it won't verify the input. 836 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 837 DiagnosticsEngine *Diags); 838 839 static void getAllNoBuiltinFuncValues(ArgList &Args, 840 std::vector<std::string> &Funcs) { 841 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_); 842 auto BuiltinEnd = llvm::partition(Values, Builtin::Context::isBuiltinFunc); 843 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd); 844 } 845 846 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts, 847 SmallVectorImpl<const char *> &Args, 848 CompilerInvocation::StringAllocator SA) { 849 const AnalyzerOptions *AnalyzerOpts = &Opts; 850 851 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 852 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 853 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 854 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 855 MERGER, EXTRACTOR, TABLE_INDEX) \ 856 GENERATE_OPTION_WITH_MARSHALLING( \ 857 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 858 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 859 #include "clang/Driver/Options.inc" 860 #undef ANALYZER_OPTION_WITH_MARSHALLING 861 862 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) { 863 switch (Opts.AnalysisConstraintsOpt) { 864 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 865 case NAME##Model: \ 866 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \ 867 break; 868 #include "clang/StaticAnalyzer/Core/Analyses.def" 869 default: 870 llvm_unreachable("Tried to generate unknown analysis constraint."); 871 } 872 } 873 874 if (Opts.AnalysisDiagOpt != PD_HTML) { 875 switch (Opts.AnalysisDiagOpt) { 876 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 877 case PD_##NAME: \ 878 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \ 879 break; 880 #include "clang/StaticAnalyzer/Core/Analyses.def" 881 default: 882 llvm_unreachable("Tried to generate unknown analysis diagnostic client."); 883 } 884 } 885 886 if (Opts.AnalysisPurgeOpt != PurgeStmt) { 887 switch (Opts.AnalysisPurgeOpt) { 888 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 889 case NAME: \ 890 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \ 891 break; 892 #include "clang/StaticAnalyzer/Core/Analyses.def" 893 default: 894 llvm_unreachable("Tried to generate unknown analysis purge mode."); 895 } 896 } 897 898 if (Opts.InliningMode != NoRedundancy) { 899 switch (Opts.InliningMode) { 900 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 901 case NAME: \ 902 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \ 903 break; 904 #include "clang/StaticAnalyzer/Core/Analyses.def" 905 default: 906 llvm_unreachable("Tried to generate unknown analysis inlining mode."); 907 } 908 } 909 910 for (const auto &CP : Opts.CheckersAndPackages) { 911 OptSpecifier Opt = 912 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker; 913 GenerateArg(Args, Opt, CP.first, SA); 914 } 915 916 AnalyzerOptions ConfigOpts; 917 parseAnalyzerConfigs(ConfigOpts, nullptr); 918 919 // Sort options by key to avoid relying on StringMap iteration order. 920 SmallVector<std::pair<StringRef, StringRef>, 4> SortedConfigOpts; 921 for (const auto &C : Opts.Config) 922 SortedConfigOpts.emplace_back(C.getKey(), C.getValue()); 923 llvm::sort(SortedConfigOpts, llvm::less_first()); 924 925 for (const auto &[Key, Value] : SortedConfigOpts) { 926 // Don't generate anything that came from parseAnalyzerConfigs. It would be 927 // redundant and may not be valid on the command line. 928 auto Entry = ConfigOpts.Config.find(Key); 929 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == Value) 930 continue; 931 932 GenerateArg(Args, OPT_analyzer_config, Key + "=" + Value, SA); 933 } 934 935 // Nothing to generate for FullCompilerInvocation. 936 } 937 938 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 939 DiagnosticsEngine &Diags) { 940 unsigned NumErrorsBefore = Diags.getNumErrors(); 941 942 AnalyzerOptions *AnalyzerOpts = &Opts; 943 944 #define ANALYZER_OPTION_WITH_MARSHALLING( \ 945 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 946 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 947 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 948 MERGER, EXTRACTOR, TABLE_INDEX) \ 949 PARSE_OPTION_WITH_MARSHALLING( \ 950 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 951 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 952 #include "clang/Driver/Options.inc" 953 #undef ANALYZER_OPTION_WITH_MARSHALLING 954 955 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 956 StringRef Name = A->getValue(); 957 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 958 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 959 .Case(CMDFLAG, NAME##Model) 960 #include "clang/StaticAnalyzer/Core/Analyses.def" 961 .Default(NumConstraints); 962 if (Value == NumConstraints) { 963 Diags.Report(diag::err_drv_invalid_value) 964 << A->getAsString(Args) << Name; 965 } else { 966 #ifndef LLVM_WITH_Z3 967 if (Value == AnalysisConstraints::Z3ConstraintsModel) { 968 Diags.Report(diag::err_analyzer_not_built_with_z3); 969 } 970 #endif // LLVM_WITH_Z3 971 Opts.AnalysisConstraintsOpt = Value; 972 } 973 } 974 975 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 976 StringRef Name = A->getValue(); 977 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 978 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 979 .Case(CMDFLAG, PD_##NAME) 980 #include "clang/StaticAnalyzer/Core/Analyses.def" 981 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 982 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 983 Diags.Report(diag::err_drv_invalid_value) 984 << A->getAsString(Args) << Name; 985 } else { 986 Opts.AnalysisDiagOpt = Value; 987 } 988 } 989 990 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 991 StringRef Name = A->getValue(); 992 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 993 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 994 .Case(CMDFLAG, NAME) 995 #include "clang/StaticAnalyzer/Core/Analyses.def" 996 .Default(NumPurgeModes); 997 if (Value == NumPurgeModes) { 998 Diags.Report(diag::err_drv_invalid_value) 999 << A->getAsString(Args) << Name; 1000 } else { 1001 Opts.AnalysisPurgeOpt = Value; 1002 } 1003 } 1004 1005 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 1006 StringRef Name = A->getValue(); 1007 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 1008 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 1009 .Case(CMDFLAG, NAME) 1010 #include "clang/StaticAnalyzer/Core/Analyses.def" 1011 .Default(NumInliningModes); 1012 if (Value == NumInliningModes) { 1013 Diags.Report(diag::err_drv_invalid_value) 1014 << A->getAsString(Args) << Name; 1015 } else { 1016 Opts.InliningMode = Value; 1017 } 1018 } 1019 1020 Opts.CheckersAndPackages.clear(); 1021 for (const Arg *A : 1022 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 1023 A->claim(); 1024 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker; 1025 // We can have a list of comma separated checker names, e.g: 1026 // '-analyzer-checker=cocoa,unix' 1027 StringRef CheckerAndPackageList = A->getValue(); 1028 SmallVector<StringRef, 16> CheckersAndPackages; 1029 CheckerAndPackageList.split(CheckersAndPackages, ","); 1030 for (const StringRef &CheckerOrPackage : CheckersAndPackages) 1031 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage), 1032 IsEnabled); 1033 } 1034 1035 // Go through the analyzer configuration options. 1036 for (const auto *A : Args.filtered(OPT_analyzer_config)) { 1037 1038 // We can have a list of comma separated config names, e.g: 1039 // '-analyzer-config key1=val1,key2=val2' 1040 StringRef configList = A->getValue(); 1041 SmallVector<StringRef, 4> configVals; 1042 configList.split(configVals, ","); 1043 for (const auto &configVal : configVals) { 1044 StringRef key, val; 1045 std::tie(key, val) = configVal.split("="); 1046 if (val.empty()) { 1047 Diags.Report(SourceLocation(), 1048 diag::err_analyzer_config_no_value) << configVal; 1049 break; 1050 } 1051 if (val.contains('=')) { 1052 Diags.Report(SourceLocation(), 1053 diag::err_analyzer_config_multiple_values) 1054 << configVal; 1055 break; 1056 } 1057 1058 // TODO: Check checker options too, possibly in CheckerRegistry. 1059 // Leave unknown non-checker configs unclaimed. 1060 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) { 1061 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1062 Diags.Report(diag::err_analyzer_config_unknown) << key; 1063 continue; 1064 } 1065 1066 A->claim(); 1067 Opts.Config[key] = std::string(val); 1068 1069 // FIXME: Remove this hunk after clang-17 released. 1070 constexpr auto SingleFAM = 1071 "consider-single-element-arrays-as-flexible-array-members"; 1072 if (key == SingleFAM) { 1073 Diags.Report(diag::warn_analyzer_deprecated_option_with_alternative) 1074 << SingleFAM << "clang-17" 1075 << "-fstrict-flex-arrays=<N>"; 1076 } 1077 } 1078 } 1079 1080 if (Opts.ShouldEmitErrorsOnInvalidConfigValue) 1081 parseAnalyzerConfigs(Opts, &Diags); 1082 else 1083 parseAnalyzerConfigs(Opts, nullptr); 1084 1085 llvm::raw_string_ostream os(Opts.FullCompilerInvocation); 1086 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) { 1087 if (i != 0) 1088 os << " "; 1089 os << Args.getArgString(i); 1090 } 1091 os.flush(); 1092 1093 return Diags.getNumErrors() == NumErrorsBefore; 1094 } 1095 1096 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config, 1097 StringRef OptionName, StringRef DefaultVal) { 1098 return Config.insert({OptionName, std::string(DefaultVal)}).first->second; 1099 } 1100 1101 static void initOption(AnalyzerOptions::ConfigTable &Config, 1102 DiagnosticsEngine *Diags, 1103 StringRef &OptionField, StringRef Name, 1104 StringRef DefaultVal) { 1105 // String options may be known to invalid (e.g. if the expected string is a 1106 // file name, but the file does not exist), those will have to be checked in 1107 // parseConfigs. 1108 OptionField = getStringOption(Config, Name, DefaultVal); 1109 } 1110 1111 static void initOption(AnalyzerOptions::ConfigTable &Config, 1112 DiagnosticsEngine *Diags, 1113 bool &OptionField, StringRef Name, bool DefaultVal) { 1114 auto PossiblyInvalidVal = 1115 llvm::StringSwitch<std::optional<bool>>( 1116 getStringOption(Config, Name, (DefaultVal ? "true" : "false"))) 1117 .Case("true", true) 1118 .Case("false", false) 1119 .Default(std::nullopt); 1120 1121 if (!PossiblyInvalidVal) { 1122 if (Diags) 1123 Diags->Report(diag::err_analyzer_config_invalid_input) 1124 << Name << "a boolean"; 1125 else 1126 OptionField = DefaultVal; 1127 } else 1128 OptionField = *PossiblyInvalidVal; 1129 } 1130 1131 static void initOption(AnalyzerOptions::ConfigTable &Config, 1132 DiagnosticsEngine *Diags, 1133 unsigned &OptionField, StringRef Name, 1134 unsigned DefaultVal) { 1135 1136 OptionField = DefaultVal; 1137 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal)) 1138 .getAsInteger(0, OptionField); 1139 if (Diags && HasFailed) 1140 Diags->Report(diag::err_analyzer_config_invalid_input) 1141 << Name << "an unsigned"; 1142 } 1143 1144 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts, 1145 DiagnosticsEngine *Diags) { 1146 // TODO: There's no need to store the entire configtable, it'd be plenty 1147 // enough to store checker options. 1148 1149 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \ 1150 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL); 1151 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...) 1152 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1153 1154 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep"); 1155 const bool InShallowMode = AnOpts.UserMode == "shallow"; 1156 1157 #define ANALYZER_OPTION(...) 1158 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \ 1159 SHALLOW_VAL, DEEP_VAL) \ 1160 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \ 1161 InShallowMode ? SHALLOW_VAL : DEEP_VAL); 1162 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def" 1163 1164 // At this point, AnalyzerOptions is configured. Let's validate some options. 1165 1166 // FIXME: Here we try to validate the silenced checkers or packages are valid. 1167 // The current approach only validates the registered checkers which does not 1168 // contain the runtime enabled checkers and optimally we would validate both. 1169 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) { 1170 std::vector<StringRef> Checkers = 1171 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true); 1172 std::vector<StringRef> Packages = 1173 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true); 1174 1175 SmallVector<StringRef, 16> CheckersAndPackages; 1176 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";"); 1177 1178 for (const StringRef &CheckerOrPackage : CheckersAndPackages) { 1179 if (Diags) { 1180 bool IsChecker = CheckerOrPackage.contains('.'); 1181 bool IsValidName = IsChecker 1182 ? llvm::is_contained(Checkers, CheckerOrPackage) 1183 : llvm::is_contained(Packages, CheckerOrPackage); 1184 1185 if (!IsValidName) 1186 Diags->Report(diag::err_unknown_analyzer_checker_or_package) 1187 << CheckerOrPackage; 1188 } 1189 1190 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage); 1191 } 1192 } 1193 1194 if (!Diags) 1195 return; 1196 1197 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions) 1198 Diags->Report(diag::err_analyzer_config_invalid_input) 1199 << "track-conditions-debug" << "'track-conditions' to also be enabled"; 1200 1201 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir)) 1202 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir" 1203 << "a filename"; 1204 1205 if (!AnOpts.ModelPath.empty() && 1206 !llvm::sys::fs::is_directory(AnOpts.ModelPath)) 1207 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path" 1208 << "a filename"; 1209 } 1210 1211 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`. 1212 static void 1213 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args, 1214 CompilerInvocation::StringAllocator SA, 1215 OptSpecifier OptEQ, StringRef Name, 1216 const CodeGenOptions::OptRemark &Remark) { 1217 if (Remark.hasValidPattern()) { 1218 GenerateArg(Args, OptEQ, Remark.Pattern, SA); 1219 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) { 1220 GenerateArg(Args, OPT_R_Joined, Name, SA); 1221 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) { 1222 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA); 1223 } 1224 } 1225 1226 /// Parse a remark command line argument. It may be missing, disabled/enabled by 1227 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'. 1228 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'. 1229 static CodeGenOptions::OptRemark 1230 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args, 1231 OptSpecifier OptEQ, StringRef Name) { 1232 CodeGenOptions::OptRemark Result; 1233 1234 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A, 1235 StringRef Pattern) { 1236 Result.Pattern = Pattern.str(); 1237 1238 std::string RegexError; 1239 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern); 1240 if (!Result.Regex->isValid(RegexError)) { 1241 Diags.Report(diag::err_drv_optimization_remark_pattern) 1242 << RegexError << A->getAsString(Args); 1243 return false; 1244 } 1245 1246 return true; 1247 }; 1248 1249 for (Arg *A : Args) { 1250 if (A->getOption().matches(OPT_R_Joined)) { 1251 StringRef Value = A->getValue(); 1252 1253 if (Value == Name) 1254 Result.Kind = CodeGenOptions::RK_Enabled; 1255 else if (Value == "everything") 1256 Result.Kind = CodeGenOptions::RK_EnabledEverything; 1257 else if (Value.split('-') == std::make_pair(StringRef("no"), Name)) 1258 Result.Kind = CodeGenOptions::RK_Disabled; 1259 else if (Value == "no-everything") 1260 Result.Kind = CodeGenOptions::RK_DisabledEverything; 1261 else 1262 continue; 1263 1264 if (Result.Kind == CodeGenOptions::RK_Disabled || 1265 Result.Kind == CodeGenOptions::RK_DisabledEverything) { 1266 Result.Pattern = ""; 1267 Result.Regex = nullptr; 1268 } else { 1269 InitializeResultPattern(A, ".*"); 1270 } 1271 } else if (A->getOption().matches(OptEQ)) { 1272 Result.Kind = CodeGenOptions::RK_WithPattern; 1273 if (!InitializeResultPattern(A, A->getValue())) 1274 return CodeGenOptions::OptRemark(); 1275 } 1276 } 1277 1278 return Result; 1279 } 1280 1281 static bool parseDiagnosticLevelMask(StringRef FlagName, 1282 const std::vector<std::string> &Levels, 1283 DiagnosticsEngine &Diags, 1284 DiagnosticLevelMask &M) { 1285 bool Success = true; 1286 for (const auto &Level : Levels) { 1287 DiagnosticLevelMask const PM = 1288 llvm::StringSwitch<DiagnosticLevelMask>(Level) 1289 .Case("note", DiagnosticLevelMask::Note) 1290 .Case("remark", DiagnosticLevelMask::Remark) 1291 .Case("warning", DiagnosticLevelMask::Warning) 1292 .Case("error", DiagnosticLevelMask::Error) 1293 .Default(DiagnosticLevelMask::None); 1294 if (PM == DiagnosticLevelMask::None) { 1295 Success = false; 1296 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level; 1297 } 1298 M = M | PM; 1299 } 1300 return Success; 1301 } 1302 1303 static void parseSanitizerKinds(StringRef FlagName, 1304 const std::vector<std::string> &Sanitizers, 1305 DiagnosticsEngine &Diags, SanitizerSet &S) { 1306 for (const auto &Sanitizer : Sanitizers) { 1307 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 1308 if (K == SanitizerMask()) 1309 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 1310 else 1311 S.set(K, true); 1312 } 1313 } 1314 1315 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) { 1316 SmallVector<StringRef, 4> Values; 1317 serializeSanitizerSet(S, Values); 1318 return Values; 1319 } 1320 1321 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle, 1322 ArgList &Args, DiagnosticsEngine &D, 1323 XRayInstrSet &S) { 1324 llvm::SmallVector<StringRef, 2> BundleParts; 1325 llvm::SplitString(Bundle, BundleParts, ","); 1326 for (const auto &B : BundleParts) { 1327 auto Mask = parseXRayInstrValue(B); 1328 if (Mask == XRayInstrKind::None) 1329 if (B != "none") 1330 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle; 1331 else 1332 S.Mask = Mask; 1333 else if (Mask == XRayInstrKind::All) 1334 S.Mask = Mask; 1335 else 1336 S.set(Mask, true); 1337 } 1338 } 1339 1340 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) { 1341 llvm::SmallVector<StringRef, 2> BundleParts; 1342 serializeXRayInstrValue(S, BundleParts); 1343 std::string Buffer; 1344 llvm::raw_string_ostream OS(Buffer); 1345 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ","); 1346 return Buffer; 1347 } 1348 1349 // Set the profile kind using fprofile-instrument-use-path. 1350 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 1351 const Twine &ProfileName, 1352 llvm::vfs::FileSystem &FS, 1353 DiagnosticsEngine &Diags) { 1354 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName, FS); 1355 if (auto E = ReaderOrErr.takeError()) { 1356 unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error, 1357 "Error in reading profile %0: %1"); 1358 llvm::handleAllErrors(std::move(E), [&](const llvm::ErrorInfoBase &EI) { 1359 Diags.Report(DiagID) << ProfileName.str() << EI.message(); 1360 }); 1361 return; 1362 } 1363 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 1364 std::move(ReaderOrErr.get()); 1365 // Currently memprof profiles are only added at the IR level. Mark the profile 1366 // type as IR in that case as well and the subsequent matching needs to detect 1367 // which is available (might be one or both). 1368 if (PGOReader->isIRLevelProfile() || PGOReader->hasMemoryProfile()) { 1369 if (PGOReader->hasCSIRLevelProfile()) 1370 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr); 1371 else 1372 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 1373 } else 1374 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 1375 } 1376 1377 void CompilerInvocation::GenerateCodeGenArgs( 1378 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args, 1379 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile, 1380 const LangOptions *LangOpts) { 1381 const CodeGenOptions &CodeGenOpts = Opts; 1382 1383 if (Opts.OptimizationLevel == 0) 1384 GenerateArg(Args, OPT_O0, SA); 1385 else 1386 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA); 1387 1388 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1389 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1390 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1391 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1392 MERGER, EXTRACTOR, TABLE_INDEX) \ 1393 GENERATE_OPTION_WITH_MARSHALLING( \ 1394 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 1395 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 1396 #include "clang/Driver/Options.inc" 1397 #undef CODEGEN_OPTION_WITH_MARSHALLING 1398 1399 if (Opts.OptimizationLevel > 0) { 1400 if (Opts.Inlining == CodeGenOptions::NormalInlining) 1401 GenerateArg(Args, OPT_finline_functions, SA); 1402 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining) 1403 GenerateArg(Args, OPT_finline_hint_functions, SA); 1404 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining) 1405 GenerateArg(Args, OPT_fno_inline, SA); 1406 } 1407 1408 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0) 1409 GenerateArg(Args, OPT_fdirect_access_external_data, SA); 1410 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0) 1411 GenerateArg(Args, OPT_fno_direct_access_external_data, SA); 1412 1413 std::optional<StringRef> DebugInfoVal; 1414 switch (Opts.DebugInfo) { 1415 case codegenoptions::DebugLineTablesOnly: 1416 DebugInfoVal = "line-tables-only"; 1417 break; 1418 case codegenoptions::DebugDirectivesOnly: 1419 DebugInfoVal = "line-directives-only"; 1420 break; 1421 case codegenoptions::DebugInfoConstructor: 1422 DebugInfoVal = "constructor"; 1423 break; 1424 case codegenoptions::LimitedDebugInfo: 1425 DebugInfoVal = "limited"; 1426 break; 1427 case codegenoptions::FullDebugInfo: 1428 DebugInfoVal = "standalone"; 1429 break; 1430 case codegenoptions::UnusedTypeInfo: 1431 DebugInfoVal = "unused-types"; 1432 break; 1433 case codegenoptions::NoDebugInfo: // default value 1434 DebugInfoVal = std::nullopt; 1435 break; 1436 case codegenoptions::LocTrackingOnly: // implied value 1437 DebugInfoVal = std::nullopt; 1438 break; 1439 } 1440 if (DebugInfoVal) 1441 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA); 1442 1443 for (const auto &Prefix : Opts.DebugPrefixMap) 1444 GenerateArg(Args, OPT_fdebug_prefix_map_EQ, 1445 Prefix.first + "=" + Prefix.second, SA); 1446 1447 for (const auto &Prefix : Opts.CoveragePrefixMap) 1448 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ, 1449 Prefix.first + "=" + Prefix.second, SA); 1450 1451 if (Opts.NewStructPathTBAA) 1452 GenerateArg(Args, OPT_new_struct_path_tbaa, SA); 1453 1454 if (Opts.OptimizeSize == 1) 1455 GenerateArg(Args, OPT_O, "s", SA); 1456 else if (Opts.OptimizeSize == 2) 1457 GenerateArg(Args, OPT_O, "z", SA); 1458 1459 // SimplifyLibCalls is set only in the absence of -fno-builtin and 1460 // -ffreestanding. We'll consider that when generating them. 1461 1462 // NoBuiltinFuncs are generated by LangOptions. 1463 1464 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1) 1465 GenerateArg(Args, OPT_funroll_loops, SA); 1466 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1) 1467 GenerateArg(Args, OPT_fno_unroll_loops, SA); 1468 1469 if (!Opts.BinutilsVersion.empty()) 1470 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA); 1471 1472 if (Opts.DebugNameTable == 1473 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU)) 1474 GenerateArg(Args, OPT_ggnu_pubnames, SA); 1475 else if (Opts.DebugNameTable == 1476 static_cast<unsigned>( 1477 llvm::DICompileUnit::DebugNameTableKind::Default)) 1478 GenerateArg(Args, OPT_gpubnames, SA); 1479 1480 auto TNK = Opts.getDebugSimpleTemplateNames(); 1481 if (TNK != codegenoptions::DebugTemplateNamesKind::Full) { 1482 if (TNK == codegenoptions::DebugTemplateNamesKind::Simple) 1483 GenerateArg(Args, OPT_gsimple_template_names_EQ, "simple", SA); 1484 else if (TNK == codegenoptions::DebugTemplateNamesKind::Mangled) 1485 GenerateArg(Args, OPT_gsimple_template_names_EQ, "mangled", SA); 1486 } 1487 // ProfileInstrumentUsePath is marshalled automatically, no need to generate 1488 // it or PGOUseInstrumentor. 1489 1490 if (Opts.TimePasses) { 1491 if (Opts.TimePassesPerRun) 1492 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA); 1493 else 1494 GenerateArg(Args, OPT_ftime_report, SA); 1495 } 1496 1497 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO) 1498 GenerateArg(Args, OPT_flto_EQ, "full", SA); 1499 1500 if (Opts.PrepareForThinLTO) 1501 GenerateArg(Args, OPT_flto_EQ, "thin", SA); 1502 1503 if (!Opts.ThinLTOIndexFile.empty()) 1504 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA); 1505 1506 if (Opts.SaveTempsFilePrefix == OutputFile) 1507 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA); 1508 1509 StringRef MemProfileBasename("memprof.profraw"); 1510 if (!Opts.MemoryProfileOutput.empty()) { 1511 if (Opts.MemoryProfileOutput == MemProfileBasename) { 1512 GenerateArg(Args, OPT_fmemory_profile, SA); 1513 } else { 1514 size_t ArgLength = 1515 Opts.MemoryProfileOutput.size() - MemProfileBasename.size(); 1516 GenerateArg(Args, OPT_fmemory_profile_EQ, 1517 Opts.MemoryProfileOutput.substr(0, ArgLength), SA); 1518 } 1519 } 1520 1521 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0) 1522 GenerateArg(Args, OPT_coverage_version_EQ, 1523 StringRef(Opts.CoverageVersion, 4), SA); 1524 1525 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely 1526 // '-fembed_bitcode', which does not map to any CompilerInvocation field and 1527 // won't be generated.) 1528 1529 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) { 1530 std::string InstrBundle = 1531 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle); 1532 if (!InstrBundle.empty()) 1533 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA); 1534 } 1535 1536 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch) 1537 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA); 1538 else if (Opts.CFProtectionReturn) 1539 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA); 1540 else if (Opts.CFProtectionBranch) 1541 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA); 1542 1543 if (Opts.FunctionReturnThunks) 1544 GenerateArg(Args, OPT_mfunction_return_EQ, "thunk-extern", SA); 1545 1546 for (const auto &F : Opts.LinkBitcodeFiles) { 1547 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded && 1548 F.PropagateAttrs && F.Internalize; 1549 GenerateArg(Args, 1550 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file, 1551 F.Filename, SA); 1552 } 1553 1554 GenerateArg( 1555 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA); 1556 1557 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE()) 1558 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA); 1559 1560 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) || 1561 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())) 1562 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(), 1563 SA); 1564 1565 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) { 1566 OptSpecifier Opt = 1567 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return; 1568 GenerateArg(Args, Opt, SA); 1569 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) { 1570 OptSpecifier Opt = 1571 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return; 1572 GenerateArg(Args, Opt, SA); 1573 } 1574 1575 if (Opts.EnableAIXExtendedAltivecABI) 1576 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA); 1577 1578 if (!Opts.OptRecordPasses.empty()) 1579 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA); 1580 1581 if (!Opts.OptRecordFormat.empty()) 1582 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA); 1583 1584 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass", 1585 Opts.OptimizationRemark); 1586 1587 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed", 1588 Opts.OptimizationRemarkMissed); 1589 1590 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis", 1591 Opts.OptimizationRemarkAnalysis); 1592 1593 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ, 1594 Opts.DiagnosticsHotnessThreshold 1595 ? Twine(*Opts.DiagnosticsHotnessThreshold) 1596 : "auto", 1597 SA); 1598 1599 GenerateArg(Args, OPT_fdiagnostics_misexpect_tolerance_EQ, 1600 Twine(*Opts.DiagnosticsMisExpectTolerance), SA); 1601 1602 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover)) 1603 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA); 1604 1605 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap)) 1606 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA); 1607 1608 if (!Opts.EmitVersionIdentMetadata) 1609 GenerateArg(Args, OPT_Qn, SA); 1610 1611 switch (Opts.FiniteLoops) { 1612 case CodeGenOptions::FiniteLoopsKind::Language: 1613 break; 1614 case CodeGenOptions::FiniteLoopsKind::Always: 1615 GenerateArg(Args, OPT_ffinite_loops, SA); 1616 break; 1617 case CodeGenOptions::FiniteLoopsKind::Never: 1618 GenerateArg(Args, OPT_fno_finite_loops, SA); 1619 break; 1620 } 1621 } 1622 1623 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, 1624 InputKind IK, 1625 DiagnosticsEngine &Diags, 1626 const llvm::Triple &T, 1627 const std::string &OutputFile, 1628 const LangOptions &LangOptsRef) { 1629 unsigned NumErrorsBefore = Diags.getNumErrors(); 1630 1631 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 1632 // TODO: This could be done in Driver 1633 unsigned MaxOptLevel = 3; 1634 if (OptimizationLevel > MaxOptLevel) { 1635 // If the optimization level is not supported, fall back on the default 1636 // optimization 1637 Diags.Report(diag::warn_drv_optimization_value) 1638 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 1639 OptimizationLevel = MaxOptLevel; 1640 } 1641 Opts.OptimizationLevel = OptimizationLevel; 1642 1643 // The key paths of codegen options defined in Options.td start with 1644 // "CodeGenOpts.". Let's provide the expected variable name and type. 1645 CodeGenOptions &CodeGenOpts = Opts; 1646 // Some codegen options depend on language options. Let's provide the expected 1647 // variable name and type. 1648 const LangOptions *LangOpts = &LangOptsRef; 1649 1650 #define CODEGEN_OPTION_WITH_MARSHALLING( \ 1651 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 1652 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 1653 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 1654 MERGER, EXTRACTOR, TABLE_INDEX) \ 1655 PARSE_OPTION_WITH_MARSHALLING( \ 1656 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 1657 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 1658 #include "clang/Driver/Options.inc" 1659 #undef CODEGEN_OPTION_WITH_MARSHALLING 1660 1661 // At O0 we want to fully disable inlining outside of cases marked with 1662 // 'alwaysinline' that are required for correctness. 1663 if (Opts.OptimizationLevel == 0) { 1664 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1665 } else if (const Arg *A = Args.getLastArg(options::OPT_finline_functions, 1666 options::OPT_finline_hint_functions, 1667 options::OPT_fno_inline_functions, 1668 options::OPT_fno_inline)) { 1669 // Explicit inlining flags can disable some or all inlining even at 1670 // optimization levels above zero. 1671 if (A->getOption().matches(options::OPT_finline_functions)) 1672 Opts.setInlining(CodeGenOptions::NormalInlining); 1673 else if (A->getOption().matches(options::OPT_finline_hint_functions)) 1674 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 1675 else 1676 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 1677 } else { 1678 Opts.setInlining(CodeGenOptions::NormalInlining); 1679 } 1680 1681 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to 1682 // -fdirect-access-external-data. 1683 Opts.DirectAccessExternalData = 1684 Args.hasArg(OPT_fdirect_access_external_data) || 1685 (!Args.hasArg(OPT_fno_direct_access_external_data) && 1686 LangOpts->PICLevel == 0); 1687 1688 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 1689 unsigned Val = 1690 llvm::StringSwitch<unsigned>(A->getValue()) 1691 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 1692 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly) 1693 .Case("constructor", codegenoptions::DebugInfoConstructor) 1694 .Case("limited", codegenoptions::LimitedDebugInfo) 1695 .Case("standalone", codegenoptions::FullDebugInfo) 1696 .Case("unused-types", codegenoptions::UnusedTypeInfo) 1697 .Default(~0U); 1698 if (Val == ~0U) 1699 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1700 << A->getValue(); 1701 else 1702 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 1703 } 1704 1705 // If -fuse-ctor-homing is set and limited debug info is already on, then use 1706 // constructor homing, and vice versa for -fno-use-ctor-homing. 1707 if (const Arg *A = 1708 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) { 1709 if (A->getOption().matches(OPT_fuse_ctor_homing) && 1710 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo) 1711 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor); 1712 if (A->getOption().matches(OPT_fno_use_ctor_homing) && 1713 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor) 1714 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo); 1715 } 1716 1717 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) { 1718 auto Split = StringRef(Arg).split('='); 1719 Opts.DebugPrefixMap.insert( 1720 {std::string(Split.first), std::string(Split.second)}); 1721 } 1722 1723 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) { 1724 auto Split = StringRef(Arg).split('='); 1725 Opts.CoveragePrefixMap.insert( 1726 {std::string(Split.first), std::string(Split.second)}); 1727 } 1728 1729 const llvm::Triple::ArchType DebugEntryValueArchs[] = { 1730 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64, 1731 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips, 1732 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el}; 1733 1734 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() && 1735 llvm::is_contained(DebugEntryValueArchs, T.getArch())) 1736 Opts.EmitCallSiteInfo = true; 1737 1738 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) { 1739 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export) 1740 << Opts.DIBugsReportFilePath; 1741 Opts.DIBugsReportFilePath = ""; 1742 } 1743 1744 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) && 1745 Args.hasArg(OPT_new_struct_path_tbaa); 1746 Opts.OptimizeSize = getOptimizationLevelSize(Args); 1747 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin; 1748 if (Opts.SimplifyLibCalls) 1749 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs; 1750 Opts.UnrollLoops = 1751 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 1752 (Opts.OptimizationLevel > 1)); 1753 Opts.BinutilsVersion = 1754 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ)); 1755 1756 Opts.DebugNameTable = static_cast<unsigned>( 1757 Args.hasArg(OPT_ggnu_pubnames) 1758 ? llvm::DICompileUnit::DebugNameTableKind::GNU 1759 : Args.hasArg(OPT_gpubnames) 1760 ? llvm::DICompileUnit::DebugNameTableKind::Default 1761 : llvm::DICompileUnit::DebugNameTableKind::None); 1762 if (const Arg *A = Args.getLastArg(OPT_gsimple_template_names_EQ)) { 1763 StringRef Value = A->getValue(); 1764 if (Value != "simple" && Value != "mangled") 1765 Diags.Report(diag::err_drv_unsupported_option_argument) 1766 << A->getSpelling() << A->getValue(); 1767 Opts.setDebugSimpleTemplateNames( 1768 StringRef(A->getValue()) == "simple" 1769 ? codegenoptions::DebugTemplateNamesKind::Simple 1770 : codegenoptions::DebugTemplateNamesKind::Mangled); 1771 } 1772 1773 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) { 1774 Opts.TimePasses = true; 1775 1776 // -ftime-report= is only for new pass manager. 1777 if (A->getOption().getID() == OPT_ftime_report_EQ) { 1778 StringRef Val = A->getValue(); 1779 if (Val == "per-pass") 1780 Opts.TimePassesPerRun = false; 1781 else if (Val == "per-pass-run") 1782 Opts.TimePassesPerRun = true; 1783 else 1784 Diags.Report(diag::err_drv_invalid_value) 1785 << A->getAsString(Args) << A->getValue(); 1786 } 1787 } 1788 1789 Opts.PrepareForLTO = false; 1790 Opts.PrepareForThinLTO = false; 1791 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) { 1792 Opts.PrepareForLTO = true; 1793 StringRef S = A->getValue(); 1794 if (S == "thin") 1795 Opts.PrepareForThinLTO = true; 1796 else if (S != "full") 1797 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S; 1798 } 1799 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 1800 if (IK.getLanguage() != Language::LLVM_IR) 1801 Diags.Report(diag::err_drv_argument_only_allowed_with) 1802 << A->getAsString(Args) << "-x ir"; 1803 Opts.ThinLTOIndexFile = 1804 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ)); 1805 } 1806 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ)) 1807 Opts.SaveTempsFilePrefix = 1808 llvm::StringSwitch<std::string>(A->getValue()) 1809 .Case("obj", OutputFile) 1810 .Default(llvm::sys::path::filename(OutputFile).str()); 1811 1812 // The memory profile runtime appends the pid to make this name more unique. 1813 const char *MemProfileBasename = "memprof.profraw"; 1814 if (Args.hasArg(OPT_fmemory_profile_EQ)) { 1815 SmallString<128> Path( 1816 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ))); 1817 llvm::sys::path::append(Path, MemProfileBasename); 1818 Opts.MemoryProfileOutput = std::string(Path); 1819 } else if (Args.hasArg(OPT_fmemory_profile)) 1820 Opts.MemoryProfileOutput = MemProfileBasename; 1821 1822 memcpy(Opts.CoverageVersion, "408*", 4); 1823 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 1824 if (Args.hasArg(OPT_coverage_version_EQ)) { 1825 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 1826 if (CoverageVersion.size() != 4) { 1827 Diags.Report(diag::err_drv_invalid_value) 1828 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 1829 << CoverageVersion; 1830 } else { 1831 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 1832 } 1833 } 1834 } 1835 // FIXME: For backend options that are not yet recorded as function 1836 // attributes in the IR, keep track of them so we can embed them in a 1837 // separate data section and use them when building the bitcode. 1838 for (const auto &A : Args) { 1839 // Do not encode output and input. 1840 if (A->getOption().getID() == options::OPT_o || 1841 A->getOption().getID() == options::OPT_INPUT || 1842 A->getOption().getID() == options::OPT_x || 1843 A->getOption().getID() == options::OPT_fembed_bitcode || 1844 A->getOption().matches(options::OPT_W_Group)) 1845 continue; 1846 ArgStringList ASL; 1847 A->render(Args, ASL); 1848 for (const auto &arg : ASL) { 1849 StringRef ArgStr(arg); 1850 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 1851 // using \00 to separate each commandline options. 1852 Opts.CmdArgs.push_back('\0'); 1853 } 1854 } 1855 1856 auto XRayInstrBundles = 1857 Args.getAllArgValues(OPT_fxray_instrumentation_bundle); 1858 if (XRayInstrBundles.empty()) 1859 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All; 1860 else 1861 for (const auto &A : XRayInstrBundles) 1862 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args, 1863 Diags, Opts.XRayInstrumentationBundle); 1864 1865 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 1866 StringRef Name = A->getValue(); 1867 if (Name == "full") { 1868 Opts.CFProtectionReturn = 1; 1869 Opts.CFProtectionBranch = 1; 1870 } else if (Name == "return") 1871 Opts.CFProtectionReturn = 1; 1872 else if (Name == "branch") 1873 Opts.CFProtectionBranch = 1; 1874 else if (Name != "none") 1875 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1876 } 1877 1878 if (const Arg *A = Args.getLastArg(OPT_mfunction_return_EQ)) { 1879 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue()) 1880 .Case("keep", llvm::FunctionReturnThunksKind::Keep) 1881 .Case("thunk-extern", llvm::FunctionReturnThunksKind::Extern) 1882 .Default(llvm::FunctionReturnThunksKind::Invalid); 1883 // SystemZ might want to add support for "expolines." 1884 if (!T.isX86()) 1885 Diags.Report(diag::err_drv_argument_not_allowed_with) 1886 << A->getSpelling() << T.getTriple(); 1887 else if (Val == llvm::FunctionReturnThunksKind::Invalid) 1888 Diags.Report(diag::err_drv_invalid_value) 1889 << A->getAsString(Args) << A->getValue(); 1890 else if (Val == llvm::FunctionReturnThunksKind::Extern && 1891 Args.getLastArgValue(OPT_mcmodel_EQ).equals("large")) 1892 Diags.Report(diag::err_drv_argument_not_allowed_with) 1893 << A->getAsString(Args) 1894 << Args.getLastArg(OPT_mcmodel_EQ)->getAsString(Args); 1895 else 1896 Opts.FunctionReturnThunks = static_cast<unsigned>(Val); 1897 } 1898 1899 for (auto *A : 1900 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) { 1901 CodeGenOptions::BitcodeFileToLink F; 1902 F.Filename = A->getValue(); 1903 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) { 1904 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded; 1905 // When linking CUDA bitcode, propagate function attributes so that 1906 // e.g. libdevice gets fast-math attrs if we're building with fast-math. 1907 F.PropagateAttrs = true; 1908 F.Internalize = true; 1909 } 1910 Opts.LinkBitcodeFiles.push_back(F); 1911 } 1912 1913 if (!Args.getLastArg(OPT_femulated_tls) && 1914 !Args.getLastArg(OPT_fno_emulated_tls)) { 1915 Opts.EmulatedTLS = T.hasDefaultEmulatedTLS(); 1916 } 1917 1918 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 1919 if (T.isOSAIX()) { 1920 StringRef Name = A->getValue(); 1921 if (Name != "global-dynamic") 1922 Diags.Report(diag::err_aix_unsupported_tls_model) << Name; 1923 } 1924 } 1925 1926 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 1927 StringRef Val = A->getValue(); 1928 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val); 1929 Opts.FP32DenormalMode = Opts.FPDenormalMode; 1930 if (!Opts.FPDenormalMode.isValid()) 1931 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1932 } 1933 1934 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) { 1935 StringRef Val = A->getValue(); 1936 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val); 1937 if (!Opts.FP32DenormalMode.isValid()) 1938 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1939 } 1940 1941 // X86_32 has -fppc-struct-return and -freg-struct-return. 1942 // PPC32 has -maix-struct-return and -msvr4-struct-return. 1943 if (Arg *A = 1944 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return, 1945 OPT_maix_struct_return, OPT_msvr4_struct_return)) { 1946 // TODO: We might want to consider enabling these options on AIX in the 1947 // future. 1948 if (T.isOSAIX()) 1949 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1950 << A->getSpelling() << T.str(); 1951 1952 const Option &O = A->getOption(); 1953 if (O.matches(OPT_fpcc_struct_return) || 1954 O.matches(OPT_maix_struct_return)) { 1955 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 1956 } else { 1957 assert(O.matches(OPT_freg_struct_return) || 1958 O.matches(OPT_msvr4_struct_return)); 1959 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 1960 } 1961 } 1962 1963 if (Arg *A = 1964 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) { 1965 if (!T.isOSAIX()) 1966 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1967 << A->getSpelling() << T.str(); 1968 1969 const Option &O = A->getOption(); 1970 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi); 1971 } 1972 1973 if (Arg *A = Args.getLastArg(OPT_mabi_EQ_quadword_atomics)) { 1974 if (!T.isOSAIX() || T.isPPC32()) 1975 Diags.Report(diag::err_drv_unsupported_opt_for_target) 1976 << A->getSpelling() << T.str(); 1977 } 1978 1979 bool NeedLocTracking = false; 1980 1981 if (!Opts.OptRecordFile.empty()) 1982 NeedLocTracking = true; 1983 1984 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) { 1985 Opts.OptRecordPasses = A->getValue(); 1986 NeedLocTracking = true; 1987 } 1988 1989 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) { 1990 Opts.OptRecordFormat = A->getValue(); 1991 NeedLocTracking = true; 1992 } 1993 1994 Opts.OptimizationRemark = 1995 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass"); 1996 1997 Opts.OptimizationRemarkMissed = 1998 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed"); 1999 2000 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark( 2001 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis"); 2002 2003 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() || 2004 Opts.OptimizationRemarkMissed.hasValidPattern() || 2005 Opts.OptimizationRemarkAnalysis.hasValidPattern(); 2006 2007 bool UsingSampleProfile = !Opts.SampleProfileFile.empty(); 2008 bool UsingProfile = 2009 UsingSampleProfile || !Opts.ProfileInstrumentUsePath.empty(); 2010 2011 if (Opts.DiagnosticsWithHotness && !UsingProfile && 2012 // An IR file will contain PGO as metadata 2013 IK.getLanguage() != Language::LLVM_IR) 2014 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 2015 << "-fdiagnostics-show-hotness"; 2016 2017 // Parse remarks hotness threshold. Valid value is either integer or 'auto'. 2018 if (auto *arg = 2019 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) { 2020 auto ResultOrErr = 2021 llvm::remarks::parseHotnessThresholdOption(arg->getValue()); 2022 2023 if (!ResultOrErr) { 2024 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold) 2025 << "-fdiagnostics-hotness-threshold="; 2026 } else { 2027 Opts.DiagnosticsHotnessThreshold = *ResultOrErr; 2028 if ((!Opts.DiagnosticsHotnessThreshold || 2029 *Opts.DiagnosticsHotnessThreshold > 0) && 2030 !UsingProfile) 2031 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo) 2032 << "-fdiagnostics-hotness-threshold="; 2033 } 2034 } 2035 2036 if (auto *arg = 2037 Args.getLastArg(options::OPT_fdiagnostics_misexpect_tolerance_EQ)) { 2038 auto ResultOrErr = parseToleranceOption(arg->getValue()); 2039 2040 if (!ResultOrErr) { 2041 Diags.Report(diag::err_drv_invalid_diagnotics_misexpect_tolerance) 2042 << "-fdiagnostics-misexpect-tolerance="; 2043 } else { 2044 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr; 2045 if ((!Opts.DiagnosticsMisExpectTolerance || 2046 *Opts.DiagnosticsMisExpectTolerance > 0) && 2047 !UsingProfile) 2048 Diags.Report(diag::warn_drv_diagnostics_misexpect_requires_pgo) 2049 << "-fdiagnostics-misexpect-tolerance="; 2050 } 2051 } 2052 2053 // If the user requested to use a sample profile for PGO, then the 2054 // backend will need to track source location information so the profile 2055 // can be incorporated into the IR. 2056 if (UsingSampleProfile) 2057 NeedLocTracking = true; 2058 2059 if (!Opts.StackUsageOutput.empty()) 2060 NeedLocTracking = true; 2061 2062 // If the user requested a flag that requires source locations available in 2063 // the backend, make sure that the backend tracks source location information. 2064 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 2065 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 2066 2067 // Parse -fsanitize-recover= arguments. 2068 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 2069 parseSanitizerKinds("-fsanitize-recover=", 2070 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 2071 Opts.SanitizeRecover); 2072 parseSanitizerKinds("-fsanitize-trap=", 2073 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 2074 Opts.SanitizeTrap); 2075 2076 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true); 2077 2078 if (Args.hasArg(options::OPT_ffinite_loops)) 2079 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always; 2080 else if (Args.hasArg(options::OPT_fno_finite_loops)) 2081 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never; 2082 2083 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag( 2084 options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee, true); 2085 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs) 2086 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans); 2087 2088 return Diags.getNumErrors() == NumErrorsBefore; 2089 } 2090 2091 static void 2092 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts, 2093 SmallVectorImpl<const char *> &Args, 2094 CompilerInvocation::StringAllocator SA) { 2095 const DependencyOutputOptions &DependencyOutputOpts = Opts; 2096 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2097 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2098 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2099 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2100 MERGER, EXTRACTOR, TABLE_INDEX) \ 2101 GENERATE_OPTION_WITH_MARSHALLING( \ 2102 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2103 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2104 #include "clang/Driver/Options.inc" 2105 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2106 2107 if (Opts.ShowIncludesDest != ShowIncludesDestination::None) 2108 GenerateArg(Args, OPT_show_includes, SA); 2109 2110 for (const auto &Dep : Opts.ExtraDeps) { 2111 switch (Dep.second) { 2112 case EDK_SanitizeIgnorelist: 2113 // Sanitizer ignorelist arguments are generated from LanguageOptions. 2114 continue; 2115 case EDK_ModuleFile: 2116 // Module file arguments are generated from FrontendOptions and 2117 // HeaderSearchOptions. 2118 continue; 2119 case EDK_ProfileList: 2120 // Profile list arguments are generated from LanguageOptions via the 2121 // marshalling infrastructure. 2122 continue; 2123 case EDK_DepFileEntry: 2124 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA); 2125 break; 2126 } 2127 } 2128 } 2129 2130 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 2131 ArgList &Args, DiagnosticsEngine &Diags, 2132 frontend::ActionKind Action, 2133 bool ShowLineMarkers) { 2134 unsigned NumErrorsBefore = Diags.getNumErrors(); 2135 2136 DependencyOutputOptions &DependencyOutputOpts = Opts; 2137 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \ 2138 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2139 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2140 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2141 MERGER, EXTRACTOR, TABLE_INDEX) \ 2142 PARSE_OPTION_WITH_MARSHALLING( \ 2143 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2144 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2145 #include "clang/Driver/Options.inc" 2146 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING 2147 2148 if (Args.hasArg(OPT_show_includes)) { 2149 // Writing both /showIncludes and preprocessor output to stdout 2150 // would produce interleaved output, so use stderr for /showIncludes. 2151 // This behaves the same as cl.exe, when /E, /EP or /P are passed. 2152 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers) 2153 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr; 2154 else 2155 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout; 2156 } else { 2157 Opts.ShowIncludesDest = ShowIncludesDestination::None; 2158 } 2159 2160 // Add sanitizer ignorelists as extra dependencies. 2161 // They won't be discovered by the regular preprocessor, so 2162 // we let make / ninja to know about this implicit dependency. 2163 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) { 2164 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) { 2165 StringRef Val = A->getValue(); 2166 if (!Val.contains('=')) 2167 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2168 } 2169 if (Opts.IncludeSystemHeaders) { 2170 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) { 2171 StringRef Val = A->getValue(); 2172 if (!Val.contains('=')) 2173 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist); 2174 } 2175 } 2176 } 2177 2178 // -fprofile-list= dependencies. 2179 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ)) 2180 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList); 2181 2182 // Propagate the extra dependencies. 2183 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) 2184 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry); 2185 2186 // Only the -fmodule-file=<file> form. 2187 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2188 StringRef Val = A->getValue(); 2189 if (!Val.contains('=')) 2190 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile); 2191 } 2192 2193 // Check for invalid combinations of header-include-format 2194 // and header-include-filtering. 2195 if ((Opts.HeaderIncludeFormat == HIFMT_Textual && 2196 Opts.HeaderIncludeFiltering != HIFIL_None) || 2197 (Opts.HeaderIncludeFormat == HIFMT_JSON && 2198 Opts.HeaderIncludeFiltering != HIFIL_Only_Direct_System)) 2199 Diags.Report(diag::err_drv_print_header_env_var_combination_cc1) 2200 << Args.getLastArg(OPT_header_include_format_EQ)->getValue() 2201 << Args.getLastArg(OPT_header_include_filtering_EQ)->getValue(); 2202 2203 return Diags.getNumErrors() == NumErrorsBefore; 2204 } 2205 2206 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 2207 // Color diagnostics default to auto ("on" if terminal supports) in the driver 2208 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 2209 // Support both clang's -f[no-]color-diagnostics and gcc's 2210 // -f[no-]diagnostics-colors[=never|always|auto]. 2211 enum { 2212 Colors_On, 2213 Colors_Off, 2214 Colors_Auto 2215 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 2216 for (auto *A : Args) { 2217 const Option &O = A->getOption(); 2218 if (O.matches(options::OPT_fcolor_diagnostics)) { 2219 ShowColors = Colors_On; 2220 } else if (O.matches(options::OPT_fno_color_diagnostics)) { 2221 ShowColors = Colors_Off; 2222 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 2223 StringRef Value(A->getValue()); 2224 if (Value == "always") 2225 ShowColors = Colors_On; 2226 else if (Value == "never") 2227 ShowColors = Colors_Off; 2228 else if (Value == "auto") 2229 ShowColors = Colors_Auto; 2230 } 2231 } 2232 return ShowColors == Colors_On || 2233 (ShowColors == Colors_Auto && 2234 llvm::sys::Process::StandardErrHasColors()); 2235 } 2236 2237 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes, 2238 DiagnosticsEngine &Diags) { 2239 bool Success = true; 2240 for (const auto &Prefix : VerifyPrefixes) { 2241 // Every prefix must start with a letter and contain only alphanumeric 2242 // characters, hyphens, and underscores. 2243 auto BadChar = llvm::find_if(Prefix, [](char C) { 2244 return !isAlphanumeric(C) && C != '-' && C != '_'; 2245 }); 2246 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) { 2247 Success = false; 2248 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix; 2249 Diags.Report(diag::note_drv_verify_prefix_spelling); 2250 } 2251 } 2252 return Success; 2253 } 2254 2255 static void GenerateFileSystemArgs(const FileSystemOptions &Opts, 2256 SmallVectorImpl<const char *> &Args, 2257 CompilerInvocation::StringAllocator SA) { 2258 const FileSystemOptions &FileSystemOpts = Opts; 2259 2260 #define FILE_SYSTEM_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 GENERATE_OPTION_WITH_MARSHALLING( \ 2266 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2267 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2268 #include "clang/Driver/Options.inc" 2269 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2270 } 2271 2272 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args, 2273 DiagnosticsEngine &Diags) { 2274 unsigned NumErrorsBefore = Diags.getNumErrors(); 2275 2276 FileSystemOptions &FileSystemOpts = Opts; 2277 2278 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \ 2279 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2280 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2281 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2282 MERGER, EXTRACTOR, TABLE_INDEX) \ 2283 PARSE_OPTION_WITH_MARSHALLING( \ 2284 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2285 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2286 #include "clang/Driver/Options.inc" 2287 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING 2288 2289 return Diags.getNumErrors() == NumErrorsBefore; 2290 } 2291 2292 static void GenerateMigratorArgs(const MigratorOptions &Opts, 2293 SmallVectorImpl<const char *> &Args, 2294 CompilerInvocation::StringAllocator SA) { 2295 const MigratorOptions &MigratorOpts = Opts; 2296 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2297 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2298 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2299 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2300 MERGER, EXTRACTOR, TABLE_INDEX) \ 2301 GENERATE_OPTION_WITH_MARSHALLING( \ 2302 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2303 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2304 #include "clang/Driver/Options.inc" 2305 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2306 } 2307 2308 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args, 2309 DiagnosticsEngine &Diags) { 2310 unsigned NumErrorsBefore = Diags.getNumErrors(); 2311 2312 MigratorOptions &MigratorOpts = Opts; 2313 2314 #define MIGRATOR_OPTION_WITH_MARSHALLING( \ 2315 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2316 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2317 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2318 MERGER, EXTRACTOR, TABLE_INDEX) \ 2319 PARSE_OPTION_WITH_MARSHALLING( \ 2320 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2321 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2322 #include "clang/Driver/Options.inc" 2323 #undef MIGRATOR_OPTION_WITH_MARSHALLING 2324 2325 return Diags.getNumErrors() == NumErrorsBefore; 2326 } 2327 2328 void CompilerInvocation::GenerateDiagnosticArgs( 2329 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args, 2330 StringAllocator SA, bool DefaultDiagColor) { 2331 const DiagnosticOptions *DiagnosticOpts = &Opts; 2332 #define DIAG_OPTION_WITH_MARSHALLING( \ 2333 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2334 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2335 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2336 MERGER, EXTRACTOR, TABLE_INDEX) \ 2337 GENERATE_OPTION_WITH_MARSHALLING( \ 2338 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2339 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2340 #include "clang/Driver/Options.inc" 2341 #undef DIAG_OPTION_WITH_MARSHALLING 2342 2343 if (!Opts.DiagnosticSerializationFile.empty()) 2344 GenerateArg(Args, OPT_diagnostic_serialized_file, 2345 Opts.DiagnosticSerializationFile, SA); 2346 2347 if (Opts.ShowColors) 2348 GenerateArg(Args, OPT_fcolor_diagnostics, SA); 2349 2350 if (Opts.VerifyDiagnostics && 2351 llvm::is_contained(Opts.VerifyPrefixes, "expected")) 2352 GenerateArg(Args, OPT_verify, SA); 2353 2354 for (const auto &Prefix : Opts.VerifyPrefixes) 2355 if (Prefix != "expected") 2356 GenerateArg(Args, OPT_verify_EQ, Prefix, SA); 2357 2358 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected(); 2359 if (VIU == DiagnosticLevelMask::None) { 2360 // This is the default, don't generate anything. 2361 } else if (VIU == DiagnosticLevelMask::All) { 2362 GenerateArg(Args, OPT_verify_ignore_unexpected, SA); 2363 } else { 2364 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0) 2365 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA); 2366 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0) 2367 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA); 2368 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0) 2369 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA); 2370 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0) 2371 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA); 2372 } 2373 2374 for (const auto &Warning : Opts.Warnings) { 2375 // This option is automatically generated from UndefPrefixes. 2376 if (Warning == "undef-prefix") 2377 continue; 2378 Args.push_back(SA(StringRef("-W") + Warning)); 2379 } 2380 2381 for (const auto &Remark : Opts.Remarks) { 2382 // These arguments are generated from OptimizationRemark fields of 2383 // CodeGenOptions. 2384 StringRef IgnoredRemarks[] = {"pass", "no-pass", 2385 "pass-analysis", "no-pass-analysis", 2386 "pass-missed", "no-pass-missed"}; 2387 if (llvm::is_contained(IgnoredRemarks, Remark)) 2388 continue; 2389 2390 Args.push_back(SA(StringRef("-R") + Remark)); 2391 } 2392 } 2393 2394 std::unique_ptr<DiagnosticOptions> 2395 clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) { 2396 auto DiagOpts = std::make_unique<DiagnosticOptions>(); 2397 unsigned MissingArgIndex, MissingArgCount; 2398 InputArgList Args = getDriverOptTable().ParseArgs( 2399 Argv.slice(1), MissingArgIndex, MissingArgCount); 2400 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs. 2401 // Any errors that would be diagnosed here will also be diagnosed later, 2402 // when the DiagnosticsEngine actually exists. 2403 (void)ParseDiagnosticArgs(*DiagOpts, Args); 2404 return DiagOpts; 2405 } 2406 2407 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 2408 DiagnosticsEngine *Diags, 2409 bool DefaultDiagColor) { 2410 std::optional<DiagnosticsEngine> IgnoringDiags; 2411 if (!Diags) { 2412 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(), 2413 new IgnoringDiagConsumer()); 2414 Diags = &*IgnoringDiags; 2415 } 2416 2417 unsigned NumErrorsBefore = Diags->getNumErrors(); 2418 2419 // The key paths of diagnostic options defined in Options.td start with 2420 // "DiagnosticOpts->". Let's provide the expected variable name and type. 2421 DiagnosticOptions *DiagnosticOpts = &Opts; 2422 2423 #define DIAG_OPTION_WITH_MARSHALLING( \ 2424 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2425 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2426 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2427 MERGER, EXTRACTOR, TABLE_INDEX) \ 2428 PARSE_OPTION_WITH_MARSHALLING( \ 2429 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2430 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2431 #include "clang/Driver/Options.inc" 2432 #undef DIAG_OPTION_WITH_MARSHALLING 2433 2434 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes); 2435 2436 if (Arg *A = 2437 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 2438 Opts.DiagnosticSerializationFile = A->getValue(); 2439 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 2440 2441 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ); 2442 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ); 2443 if (Args.hasArg(OPT_verify)) 2444 Opts.VerifyPrefixes.push_back("expected"); 2445 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and 2446 // then sort it to prepare for fast lookup using std::binary_search. 2447 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags)) 2448 Opts.VerifyDiagnostics = false; 2449 else 2450 llvm::sort(Opts.VerifyPrefixes); 2451 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 2452 parseDiagnosticLevelMask( 2453 "-verify-ignore-unexpected=", 2454 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask); 2455 if (Args.hasArg(OPT_verify_ignore_unexpected)) 2456 DiagMask = DiagnosticLevelMask::All; 2457 Opts.setVerifyIgnoreUnexpected(DiagMask); 2458 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 2459 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 2460 Diags->Report(diag::warn_ignoring_ftabstop_value) 2461 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 2462 } 2463 2464 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 2465 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 2466 2467 return Diags->getNumErrors() == NumErrorsBefore; 2468 } 2469 2470 /// Parse the argument to the -ftest-module-file-extension 2471 /// command-line argument. 2472 /// 2473 /// \returns true on error, false on success. 2474 static bool parseTestModuleFileExtensionArg(StringRef Arg, 2475 std::string &BlockName, 2476 unsigned &MajorVersion, 2477 unsigned &MinorVersion, 2478 bool &Hashed, 2479 std::string &UserInfo) { 2480 SmallVector<StringRef, 5> Args; 2481 Arg.split(Args, ':', 5); 2482 if (Args.size() < 5) 2483 return true; 2484 2485 BlockName = std::string(Args[0]); 2486 if (Args[1].getAsInteger(10, MajorVersion)) return true; 2487 if (Args[2].getAsInteger(10, MinorVersion)) return true; 2488 if (Args[3].getAsInteger(2, Hashed)) return true; 2489 if (Args.size() > 4) 2490 UserInfo = std::string(Args[4]); 2491 return false; 2492 } 2493 2494 /// Return a table that associates command line option specifiers with the 2495 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is 2496 /// intentionally missing, as this case is handled separately from other 2497 /// frontend options. 2498 static const auto &getFrontendActionTable() { 2499 static const std::pair<frontend::ActionKind, unsigned> Table[] = { 2500 {frontend::ASTDeclList, OPT_ast_list}, 2501 2502 {frontend::ASTDump, OPT_ast_dump_all_EQ}, 2503 {frontend::ASTDump, OPT_ast_dump_all}, 2504 {frontend::ASTDump, OPT_ast_dump_EQ}, 2505 {frontend::ASTDump, OPT_ast_dump}, 2506 {frontend::ASTDump, OPT_ast_dump_lookups}, 2507 {frontend::ASTDump, OPT_ast_dump_decl_types}, 2508 2509 {frontend::ASTPrint, OPT_ast_print}, 2510 {frontend::ASTView, OPT_ast_view}, 2511 {frontend::DumpCompilerOptions, OPT_compiler_options_dump}, 2512 {frontend::DumpRawTokens, OPT_dump_raw_tokens}, 2513 {frontend::DumpTokens, OPT_dump_tokens}, 2514 {frontend::EmitAssembly, OPT_S}, 2515 {frontend::EmitBC, OPT_emit_llvm_bc}, 2516 {frontend::EmitHTML, OPT_emit_html}, 2517 {frontend::EmitLLVM, OPT_emit_llvm}, 2518 {frontend::EmitLLVMOnly, OPT_emit_llvm_only}, 2519 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only}, 2520 {frontend::EmitObj, OPT_emit_obj}, 2521 {frontend::ExtractAPI, OPT_extract_api}, 2522 2523 {frontend::FixIt, OPT_fixit_EQ}, 2524 {frontend::FixIt, OPT_fixit}, 2525 2526 {frontend::GenerateModule, OPT_emit_module}, 2527 {frontend::GenerateModuleInterface, OPT_emit_module_interface}, 2528 {frontend::GenerateHeaderUnit, OPT_emit_header_unit}, 2529 {frontend::GeneratePCH, OPT_emit_pch}, 2530 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs}, 2531 {frontend::InitOnly, OPT_init_only}, 2532 {frontend::ParseSyntaxOnly, OPT_fsyntax_only}, 2533 {frontend::ModuleFileInfo, OPT_module_file_info}, 2534 {frontend::VerifyPCH, OPT_verify_pch}, 2535 {frontend::PrintPreamble, OPT_print_preamble}, 2536 {frontend::PrintPreprocessedInput, OPT_E}, 2537 {frontend::TemplightDump, OPT_templight_dump}, 2538 {frontend::RewriteMacros, OPT_rewrite_macros}, 2539 {frontend::RewriteObjC, OPT_rewrite_objc}, 2540 {frontend::RewriteTest, OPT_rewrite_test}, 2541 {frontend::RunAnalysis, OPT_analyze}, 2542 {frontend::MigrateSource, OPT_migrate}, 2543 {frontend::RunPreprocessorOnly, OPT_Eonly}, 2544 {frontend::PrintDependencyDirectivesSourceMinimizerOutput, 2545 OPT_print_dependency_directives_minimized_source}, 2546 }; 2547 2548 return Table; 2549 } 2550 2551 /// Maps command line option to frontend action. 2552 static std::optional<frontend::ActionKind> 2553 getFrontendAction(OptSpecifier &Opt) { 2554 for (const auto &ActionOpt : getFrontendActionTable()) 2555 if (ActionOpt.second == Opt.getID()) 2556 return ActionOpt.first; 2557 2558 return std::nullopt; 2559 } 2560 2561 /// Maps frontend action to command line option. 2562 static std::optional<OptSpecifier> 2563 getProgramActionOpt(frontend::ActionKind ProgramAction) { 2564 for (const auto &ActionOpt : getFrontendActionTable()) 2565 if (ActionOpt.first == ProgramAction) 2566 return OptSpecifier(ActionOpt.second); 2567 2568 return std::nullopt; 2569 } 2570 2571 static void GenerateFrontendArgs(const FrontendOptions &Opts, 2572 SmallVectorImpl<const char *> &Args, 2573 CompilerInvocation::StringAllocator SA, 2574 bool IsHeader) { 2575 const FrontendOptions &FrontendOpts = Opts; 2576 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2577 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2578 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2579 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2580 MERGER, EXTRACTOR, TABLE_INDEX) \ 2581 GENERATE_OPTION_WITH_MARSHALLING( \ 2582 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 2583 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 2584 #include "clang/Driver/Options.inc" 2585 #undef FRONTEND_OPTION_WITH_MARSHALLING 2586 2587 std::optional<OptSpecifier> ProgramActionOpt = 2588 getProgramActionOpt(Opts.ProgramAction); 2589 2590 // Generating a simple flag covers most frontend actions. 2591 std::function<void()> GenerateProgramAction = [&]() { 2592 GenerateArg(Args, *ProgramActionOpt, SA); 2593 }; 2594 2595 if (!ProgramActionOpt) { 2596 // PluginAction is the only program action handled separately. 2597 assert(Opts.ProgramAction == frontend::PluginAction && 2598 "Frontend action without option."); 2599 GenerateProgramAction = [&]() { 2600 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA); 2601 }; 2602 } 2603 2604 // FIXME: Simplify the complex 'AST dump' command line. 2605 if (Opts.ProgramAction == frontend::ASTDump) { 2606 GenerateProgramAction = [&]() { 2607 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via 2608 // marshalling infrastructure. 2609 2610 if (Opts.ASTDumpFormat != ADOF_Default) { 2611 StringRef Format; 2612 switch (Opts.ASTDumpFormat) { 2613 case ADOF_Default: 2614 llvm_unreachable("Default AST dump format."); 2615 case ADOF_JSON: 2616 Format = "json"; 2617 break; 2618 } 2619 2620 if (Opts.ASTDumpAll) 2621 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA); 2622 if (Opts.ASTDumpDecls) 2623 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA); 2624 } else { 2625 if (Opts.ASTDumpAll) 2626 GenerateArg(Args, OPT_ast_dump_all, SA); 2627 if (Opts.ASTDumpDecls) 2628 GenerateArg(Args, OPT_ast_dump, SA); 2629 } 2630 }; 2631 } 2632 2633 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) { 2634 GenerateProgramAction = [&]() { 2635 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA); 2636 }; 2637 } 2638 2639 GenerateProgramAction(); 2640 2641 for (const auto &PluginArgs : Opts.PluginArgs) { 2642 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg); 2643 const char *Spelling = 2644 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first); 2645 for (const auto &PluginArg : PluginArgs.second) 2646 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg); 2647 } 2648 2649 for (const auto &Ext : Opts.ModuleFileExtensions) 2650 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get())) 2651 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA); 2652 2653 if (!Opts.CodeCompletionAt.FileName.empty()) 2654 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(), 2655 SA); 2656 2657 for (const auto &Plugin : Opts.Plugins) 2658 GenerateArg(Args, OPT_load, Plugin, SA); 2659 2660 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction. 2661 2662 for (const auto &ModuleFile : Opts.ModuleFiles) 2663 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA); 2664 2665 if (Opts.AuxTargetCPU) 2666 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA); 2667 2668 if (Opts.AuxTargetFeatures) 2669 for (const auto &Feature : *Opts.AuxTargetFeatures) 2670 GenerateArg(Args, OPT_aux_target_feature, Feature, SA); 2671 2672 { 2673 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : ""; 2674 StringRef ModuleMap = 2675 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : ""; 2676 StringRef HeaderUnit = ""; 2677 switch (Opts.DashX.getHeaderUnitKind()) { 2678 case InputKind::HeaderUnit_None: 2679 break; 2680 case InputKind::HeaderUnit_User: 2681 HeaderUnit = "-user"; 2682 break; 2683 case InputKind::HeaderUnit_System: 2684 HeaderUnit = "-system"; 2685 break; 2686 case InputKind::HeaderUnit_Abs: 2687 HeaderUnit = "-header-unit"; 2688 break; 2689 } 2690 StringRef Header = IsHeader ? "-header" : ""; 2691 2692 StringRef Lang; 2693 switch (Opts.DashX.getLanguage()) { 2694 case Language::C: 2695 Lang = "c"; 2696 break; 2697 case Language::OpenCL: 2698 Lang = "cl"; 2699 break; 2700 case Language::OpenCLCXX: 2701 Lang = "clcpp"; 2702 break; 2703 case Language::CUDA: 2704 Lang = "cuda"; 2705 break; 2706 case Language::HIP: 2707 Lang = "hip"; 2708 break; 2709 case Language::CXX: 2710 Lang = "c++"; 2711 break; 2712 case Language::ObjC: 2713 Lang = "objective-c"; 2714 break; 2715 case Language::ObjCXX: 2716 Lang = "objective-c++"; 2717 break; 2718 case Language::RenderScript: 2719 Lang = "renderscript"; 2720 break; 2721 case Language::Asm: 2722 Lang = "assembler-with-cpp"; 2723 break; 2724 case Language::Unknown: 2725 assert(Opts.DashX.getFormat() == InputKind::Precompiled && 2726 "Generating -x argument for unknown language (not precompiled)."); 2727 Lang = "ast"; 2728 break; 2729 case Language::LLVM_IR: 2730 Lang = "ir"; 2731 break; 2732 case Language::HLSL: 2733 Lang = "hlsl"; 2734 break; 2735 } 2736 2737 GenerateArg(Args, OPT_x, 2738 Lang + HeaderUnit + Header + ModuleMap + Preprocessed, SA); 2739 } 2740 2741 // OPT_INPUT has a unique class, generate it directly. 2742 for (const auto &Input : Opts.Inputs) 2743 Args.push_back(SA(Input.getFile())); 2744 } 2745 2746 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 2747 DiagnosticsEngine &Diags, bool &IsHeaderFile) { 2748 unsigned NumErrorsBefore = Diags.getNumErrors(); 2749 2750 FrontendOptions &FrontendOpts = Opts; 2751 2752 #define FRONTEND_OPTION_WITH_MARSHALLING( \ 2753 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 2754 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 2755 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 2756 MERGER, EXTRACTOR, TABLE_INDEX) \ 2757 PARSE_OPTION_WITH_MARSHALLING( \ 2758 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 2759 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 2760 #include "clang/Driver/Options.inc" 2761 #undef FRONTEND_OPTION_WITH_MARSHALLING 2762 2763 Opts.ProgramAction = frontend::ParseSyntaxOnly; 2764 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 2765 OptSpecifier Opt = OptSpecifier(A->getOption().getID()); 2766 std::optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt); 2767 assert(ProgramAction && "Option specifier not in Action_Group."); 2768 2769 if (ProgramAction == frontend::ASTDump && 2770 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) { 2771 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 2772 .CaseLower("default", ADOF_Default) 2773 .CaseLower("json", ADOF_JSON) 2774 .Default(std::numeric_limits<unsigned>::max()); 2775 2776 if (Val != std::numeric_limits<unsigned>::max()) 2777 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val); 2778 else { 2779 Diags.Report(diag::err_drv_invalid_value) 2780 << A->getAsString(Args) << A->getValue(); 2781 Opts.ASTDumpFormat = ADOF_Default; 2782 } 2783 } 2784 2785 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ) 2786 Opts.FixItSuffix = A->getValue(); 2787 2788 if (ProgramAction == frontend::GenerateInterfaceStubs) { 2789 StringRef ArgStr = 2790 Args.hasArg(OPT_interface_stub_version_EQ) 2791 ? Args.getLastArgValue(OPT_interface_stub_version_EQ) 2792 : "ifs-v1"; 2793 if (ArgStr == "experimental-yaml-elf-v1" || 2794 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" || 2795 ArgStr == "experimental-tapi-elf-v1") { 2796 std::string ErrorMessage = 2797 "Invalid interface stub format: " + ArgStr.str() + 2798 " is deprecated."; 2799 Diags.Report(diag::err_drv_invalid_value) 2800 << "Must specify a valid interface stub format type, ie: " 2801 "-interface-stub-version=ifs-v1" 2802 << ErrorMessage; 2803 ProgramAction = frontend::ParseSyntaxOnly; 2804 } else if (!ArgStr.startswith("ifs-")) { 2805 std::string ErrorMessage = 2806 "Invalid interface stub format: " + ArgStr.str() + "."; 2807 Diags.Report(diag::err_drv_invalid_value) 2808 << "Must specify a valid interface stub format type, ie: " 2809 "-interface-stub-version=ifs-v1" 2810 << ErrorMessage; 2811 ProgramAction = frontend::ParseSyntaxOnly; 2812 } 2813 } 2814 2815 Opts.ProgramAction = *ProgramAction; 2816 } 2817 2818 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 2819 Opts.Plugins.emplace_back(A->getValue(0)); 2820 Opts.ProgramAction = frontend::PluginAction; 2821 Opts.ActionName = A->getValue(); 2822 } 2823 for (const auto *AA : Args.filtered(OPT_plugin_arg)) 2824 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 2825 2826 for (const std::string &Arg : 2827 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 2828 std::string BlockName; 2829 unsigned MajorVersion; 2830 unsigned MinorVersion; 2831 bool Hashed; 2832 std::string UserInfo; 2833 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 2834 MinorVersion, Hashed, UserInfo)) { 2835 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 2836 2837 continue; 2838 } 2839 2840 // Add the testing module file extension. 2841 Opts.ModuleFileExtensions.push_back( 2842 std::make_shared<TestModuleFileExtension>( 2843 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); 2844 } 2845 2846 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 2847 Opts.CodeCompletionAt = 2848 ParsedSourceLocation::FromString(A->getValue()); 2849 if (Opts.CodeCompletionAt.FileName.empty()) 2850 Diags.Report(diag::err_drv_invalid_value) 2851 << A->getAsString(Args) << A->getValue(); 2852 } 2853 2854 Opts.Plugins = Args.getAllArgValues(OPT_load); 2855 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ); 2856 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ); 2857 // Only the -fmodule-file=<file> form. 2858 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 2859 StringRef Val = A->getValue(); 2860 if (!Val.contains('=')) 2861 Opts.ModuleFiles.push_back(std::string(Val)); 2862 } 2863 2864 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule) 2865 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module" 2866 << "-emit-module"; 2867 2868 if (Args.hasArg(OPT_aux_target_cpu)) 2869 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu)); 2870 if (Args.hasArg(OPT_aux_target_feature)) 2871 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature); 2872 2873 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 2874 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 2875 Diags.Report(diag::err_drv_argument_not_allowed_with) 2876 << "ARC migration" << "ObjC migration"; 2877 } 2878 2879 InputKind DashX(Language::Unknown); 2880 if (const Arg *A = Args.getLastArg(OPT_x)) { 2881 StringRef XValue = A->getValue(); 2882 2883 // Parse suffixes: 2884 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'. 2885 // FIXME: Supporting '<lang>-header-cpp-output' would be useful. 2886 bool Preprocessed = XValue.consume_back("-cpp-output"); 2887 bool ModuleMap = XValue.consume_back("-module-map"); 2888 // Detect and consume the header indicator. 2889 bool IsHeader = 2890 XValue != "precompiled-header" && XValue.consume_back("-header"); 2891 2892 // If we have c++-{user,system}-header, that indicates a header unit input 2893 // likewise, if the user put -fmodule-header together with a header with an 2894 // absolute path (header-unit-header). 2895 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None; 2896 if (IsHeader || Preprocessed) { 2897 if (XValue.consume_back("-header-unit")) 2898 HUK = InputKind::HeaderUnit_Abs; 2899 else if (XValue.consume_back("-system")) 2900 HUK = InputKind::HeaderUnit_System; 2901 else if (XValue.consume_back("-user")) 2902 HUK = InputKind::HeaderUnit_User; 2903 } 2904 2905 // The value set by this processing is an un-preprocessed source which is 2906 // not intended to be a module map or header unit. 2907 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap && 2908 HUK == InputKind::HeaderUnit_None; 2909 2910 // Principal languages. 2911 DashX = llvm::StringSwitch<InputKind>(XValue) 2912 .Case("c", Language::C) 2913 .Case("cl", Language::OpenCL) 2914 .Case("clcpp", Language::OpenCLCXX) 2915 .Case("cuda", Language::CUDA) 2916 .Case("hip", Language::HIP) 2917 .Case("c++", Language::CXX) 2918 .Case("objective-c", Language::ObjC) 2919 .Case("objective-c++", Language::ObjCXX) 2920 .Case("renderscript", Language::RenderScript) 2921 .Case("hlsl", Language::HLSL) 2922 .Default(Language::Unknown); 2923 2924 // "objc[++]-cpp-output" is an acceptable synonym for 2925 // "objective-c[++]-cpp-output". 2926 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap && 2927 HUK == InputKind::HeaderUnit_None) 2928 DashX = llvm::StringSwitch<InputKind>(XValue) 2929 .Case("objc", Language::ObjC) 2930 .Case("objc++", Language::ObjCXX) 2931 .Default(Language::Unknown); 2932 2933 // Some special cases cannot be combined with suffixes. 2934 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap && 2935 HUK == InputKind::HeaderUnit_None) 2936 DashX = llvm::StringSwitch<InputKind>(XValue) 2937 .Case("cpp-output", InputKind(Language::C).getPreprocessed()) 2938 .Case("assembler-with-cpp", Language::Asm) 2939 .Cases("ast", "pcm", "precompiled-header", 2940 InputKind(Language::Unknown, InputKind::Precompiled)) 2941 .Case("ir", Language::LLVM_IR) 2942 .Default(Language::Unknown); 2943 2944 if (DashX.isUnknown()) 2945 Diags.Report(diag::err_drv_invalid_value) 2946 << A->getAsString(Args) << A->getValue(); 2947 2948 if (Preprocessed) 2949 DashX = DashX.getPreprocessed(); 2950 // A regular header is considered mutually exclusive with a header unit. 2951 if (HUK != InputKind::HeaderUnit_None) { 2952 DashX = DashX.withHeaderUnit(HUK); 2953 IsHeaderFile = true; 2954 } else if (IsHeaderFile) 2955 DashX = DashX.getHeader(); 2956 if (ModuleMap) 2957 DashX = DashX.withFormat(InputKind::ModuleMap); 2958 } 2959 2960 // '-' is the default input if none is given. 2961 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 2962 Opts.Inputs.clear(); 2963 if (Inputs.empty()) 2964 Inputs.push_back("-"); 2965 2966 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None && 2967 Inputs.size() > 1) 2968 Diags.Report(diag::err_drv_header_unit_extra_inputs) << Inputs[1]; 2969 2970 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 2971 InputKind IK = DashX; 2972 if (IK.isUnknown()) { 2973 IK = FrontendOptions::getInputKindForExtension( 2974 StringRef(Inputs[i]).rsplit('.').second); 2975 // FIXME: Warn on this? 2976 if (IK.isUnknown()) 2977 IK = Language::C; 2978 // FIXME: Remove this hack. 2979 if (i == 0) 2980 DashX = IK; 2981 } 2982 2983 bool IsSystem = false; 2984 2985 // The -emit-module action implicitly takes a module map. 2986 if (Opts.ProgramAction == frontend::GenerateModule && 2987 IK.getFormat() == InputKind::Source) { 2988 IK = IK.withFormat(InputKind::ModuleMap); 2989 IsSystem = Opts.IsSystemModule; 2990 } 2991 2992 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem); 2993 } 2994 2995 Opts.DashX = DashX; 2996 2997 return Diags.getNumErrors() == NumErrorsBefore; 2998 } 2999 3000 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 3001 void *MainAddr) { 3002 std::string ClangExecutable = 3003 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 3004 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR); 3005 } 3006 3007 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts, 3008 SmallVectorImpl<const char *> &Args, 3009 CompilerInvocation::StringAllocator SA) { 3010 const HeaderSearchOptions *HeaderSearchOpts = &Opts; 3011 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3012 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3013 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3014 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3015 MERGER, EXTRACTOR, TABLE_INDEX) \ 3016 GENERATE_OPTION_WITH_MARSHALLING( \ 3017 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3018 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3019 #include "clang/Driver/Options.inc" 3020 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3021 3022 if (Opts.UseLibcxx) 3023 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA); 3024 3025 if (!Opts.ModuleCachePath.empty()) 3026 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA); 3027 3028 for (const auto &File : Opts.PrebuiltModuleFiles) 3029 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA); 3030 3031 for (const auto &Path : Opts.PrebuiltModulePaths) 3032 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA); 3033 3034 for (const auto &Macro : Opts.ModulesIgnoreMacros) 3035 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA); 3036 3037 auto Matches = [](const HeaderSearchOptions::Entry &Entry, 3038 llvm::ArrayRef<frontend::IncludeDirGroup> Groups, 3039 std::optional<bool> IsFramework, 3040 std::optional<bool> IgnoreSysRoot) { 3041 return llvm::is_contained(Groups, Entry.Group) && 3042 (!IsFramework || (Entry.IsFramework == *IsFramework)) && 3043 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot)); 3044 }; 3045 3046 auto It = Opts.UserEntries.begin(); 3047 auto End = Opts.UserEntries.end(); 3048 3049 // Add -I..., -F..., and -index-header-map options in order. 3050 for (; It < End && Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, 3051 std::nullopt, true); 3052 ++It) { 3053 OptSpecifier Opt = [It, Matches]() { 3054 if (Matches(*It, frontend::IndexHeaderMap, true, true)) 3055 return OPT_F; 3056 if (Matches(*It, frontend::IndexHeaderMap, false, true)) 3057 return OPT_I; 3058 if (Matches(*It, frontend::Angled, true, true)) 3059 return OPT_F; 3060 if (Matches(*It, frontend::Angled, false, true)) 3061 return OPT_I; 3062 llvm_unreachable("Unexpected HeaderSearchOptions::Entry."); 3063 }(); 3064 3065 if (It->Group == frontend::IndexHeaderMap) 3066 GenerateArg(Args, OPT_index_header_map, SA); 3067 GenerateArg(Args, Opt, It->Path, SA); 3068 }; 3069 3070 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may 3071 // have already been generated as "-I[xx]yy". If that's the case, their 3072 // position on command line was such that this has no semantic impact on 3073 // include paths. 3074 for (; It < End && 3075 Matches(*It, {frontend::After, frontend::Angled}, false, true); 3076 ++It) { 3077 OptSpecifier Opt = 3078 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore; 3079 GenerateArg(Args, Opt, It->Path, SA); 3080 } 3081 3082 // Note: Some paths that came from "-idirafter=xxyy" may have already been 3083 // generated as "-iwithprefix=xxyy". If that's the case, their position on 3084 // command line was such that this has no semantic impact on include paths. 3085 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It) 3086 GenerateArg(Args, OPT_idirafter, It->Path, SA); 3087 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It) 3088 GenerateArg(Args, OPT_iquote, It->Path, SA); 3089 for (; It < End && Matches(*It, {frontend::System}, false, std::nullopt); 3090 ++It) 3091 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot, 3092 It->Path, SA); 3093 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It) 3094 GenerateArg(Args, OPT_iframework, It->Path, SA); 3095 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It) 3096 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA); 3097 3098 // Add the paths for the various language specific isystem flags. 3099 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It) 3100 GenerateArg(Args, OPT_c_isystem, It->Path, SA); 3101 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It) 3102 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA); 3103 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It) 3104 GenerateArg(Args, OPT_objc_isystem, It->Path, SA); 3105 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It) 3106 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA); 3107 3108 // Add the internal paths from a driver that detects standard include paths. 3109 // Note: Some paths that came from "-internal-isystem" arguments may have 3110 // already been generated as "-isystem". If that's the case, their position on 3111 // command line was such that this has no semantic impact on include paths. 3112 for (; It < End && 3113 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true); 3114 ++It) { 3115 OptSpecifier Opt = It->Group == frontend::System 3116 ? OPT_internal_isystem 3117 : OPT_internal_externc_isystem; 3118 GenerateArg(Args, Opt, It->Path, SA); 3119 } 3120 3121 assert(It == End && "Unhandled HeaderSearchOption::Entry."); 3122 3123 // Add the path prefixes which are implicitly treated as being system headers. 3124 for (const auto &P : Opts.SystemHeaderPrefixes) { 3125 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix 3126 : OPT_no_system_header_prefix; 3127 GenerateArg(Args, Opt, P.Prefix, SA); 3128 } 3129 3130 for (const std::string &F : Opts.VFSOverlayFiles) 3131 GenerateArg(Args, OPT_ivfsoverlay, F, SA); 3132 } 3133 3134 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args, 3135 DiagnosticsEngine &Diags, 3136 const std::string &WorkingDir) { 3137 unsigned NumErrorsBefore = Diags.getNumErrors(); 3138 3139 HeaderSearchOptions *HeaderSearchOpts = &Opts; 3140 3141 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \ 3142 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3143 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3144 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3145 MERGER, EXTRACTOR, TABLE_INDEX) \ 3146 PARSE_OPTION_WITH_MARSHALLING( \ 3147 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3148 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3149 #include "clang/Driver/Options.inc" 3150 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING 3151 3152 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 3153 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 3154 3155 // Canonicalize -fmodules-cache-path before storing it. 3156 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path)); 3157 if (!(P.empty() || llvm::sys::path::is_absolute(P))) { 3158 if (WorkingDir.empty()) 3159 llvm::sys::fs::make_absolute(P); 3160 else 3161 llvm::sys::fs::make_absolute(WorkingDir, P); 3162 } 3163 llvm::sys::path::remove_dots(P); 3164 Opts.ModuleCachePath = std::string(P.str()); 3165 3166 // Only the -fmodule-file=<name>=<file> form. 3167 for (const auto *A : Args.filtered(OPT_fmodule_file)) { 3168 StringRef Val = A->getValue(); 3169 if (Val.contains('=')) { 3170 auto Split = Val.split('='); 3171 Opts.PrebuiltModuleFiles.insert( 3172 {std::string(Split.first), std::string(Split.second)}); 3173 } 3174 } 3175 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path)) 3176 Opts.AddPrebuiltModulePath(A->getValue()); 3177 3178 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) { 3179 StringRef MacroDef = A->getValue(); 3180 Opts.ModulesIgnoreMacros.insert( 3181 llvm::CachedHashString(MacroDef.split('=').first)); 3182 } 3183 3184 // Add -I..., -F..., and -index-header-map options in order. 3185 bool IsIndexHeaderMap = false; 3186 bool IsSysrootSpecified = 3187 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 3188 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 3189 if (A->getOption().matches(OPT_index_header_map)) { 3190 // -index-header-map applies to the next -I or -F. 3191 IsIndexHeaderMap = true; 3192 continue; 3193 } 3194 3195 frontend::IncludeDirGroup Group = 3196 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 3197 3198 bool IsFramework = A->getOption().matches(OPT_F); 3199 std::string Path = A->getValue(); 3200 3201 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 3202 SmallString<32> Buffer; 3203 llvm::sys::path::append(Buffer, Opts.Sysroot, 3204 llvm::StringRef(A->getValue()).substr(1)); 3205 Path = std::string(Buffer.str()); 3206 } 3207 3208 Opts.AddPath(Path, Group, IsFramework, 3209 /*IgnoreSysroot*/ true); 3210 IsIndexHeaderMap = false; 3211 } 3212 3213 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 3214 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 3215 for (const auto *A : 3216 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 3217 if (A->getOption().matches(OPT_iprefix)) 3218 Prefix = A->getValue(); 3219 else if (A->getOption().matches(OPT_iwithprefix)) 3220 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 3221 else 3222 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 3223 } 3224 3225 for (const auto *A : Args.filtered(OPT_idirafter)) 3226 Opts.AddPath(A->getValue(), frontend::After, false, true); 3227 for (const auto *A : Args.filtered(OPT_iquote)) 3228 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 3229 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 3230 Opts.AddPath(A->getValue(), frontend::System, false, 3231 !A->getOption().matches(OPT_iwithsysroot)); 3232 for (const auto *A : Args.filtered(OPT_iframework)) 3233 Opts.AddPath(A->getValue(), frontend::System, true, true); 3234 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot)) 3235 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true, 3236 /*IgnoreSysRoot=*/false); 3237 3238 // Add the paths for the various language specific isystem flags. 3239 for (const auto *A : Args.filtered(OPT_c_isystem)) 3240 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 3241 for (const auto *A : Args.filtered(OPT_cxx_isystem)) 3242 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 3243 for (const auto *A : Args.filtered(OPT_objc_isystem)) 3244 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 3245 for (const auto *A : Args.filtered(OPT_objcxx_isystem)) 3246 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 3247 3248 // Add the internal paths from a driver that detects standard include paths. 3249 for (const auto *A : 3250 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 3251 frontend::IncludeDirGroup Group = frontend::System; 3252 if (A->getOption().matches(OPT_internal_externc_isystem)) 3253 Group = frontend::ExternCSystem; 3254 Opts.AddPath(A->getValue(), Group, false, true); 3255 } 3256 3257 // Add the path prefixes which are implicitly treated as being system headers. 3258 for (const auto *A : 3259 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 3260 Opts.AddSystemHeaderPrefix( 3261 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 3262 3263 for (const auto *A : Args.filtered(OPT_ivfsoverlay)) 3264 Opts.AddVFSOverlayFile(A->getValue()); 3265 3266 return Diags.getNumErrors() == NumErrorsBefore; 3267 } 3268 3269 /// Check if input file kind and language standard are compatible. 3270 static bool IsInputCompatibleWithStandard(InputKind IK, 3271 const LangStandard &S) { 3272 switch (IK.getLanguage()) { 3273 case Language::Unknown: 3274 case Language::LLVM_IR: 3275 llvm_unreachable("should not parse language flags for this input"); 3276 3277 case Language::C: 3278 case Language::ObjC: 3279 case Language::RenderScript: 3280 return S.getLanguage() == Language::C; 3281 3282 case Language::OpenCL: 3283 return S.getLanguage() == Language::OpenCL || 3284 S.getLanguage() == Language::OpenCLCXX; 3285 3286 case Language::OpenCLCXX: 3287 return S.getLanguage() == Language::OpenCLCXX; 3288 3289 case Language::CXX: 3290 case Language::ObjCXX: 3291 return S.getLanguage() == Language::CXX; 3292 3293 case Language::CUDA: 3294 // FIXME: What -std= values should be permitted for CUDA compilations? 3295 return S.getLanguage() == Language::CUDA || 3296 S.getLanguage() == Language::CXX; 3297 3298 case Language::HIP: 3299 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP; 3300 3301 case Language::Asm: 3302 // Accept (and ignore) all -std= values. 3303 // FIXME: The -std= value is not ignored; it affects the tokenization 3304 // and preprocessing rules if we're preprocessing this asm input. 3305 return true; 3306 3307 case Language::HLSL: 3308 return S.getLanguage() == Language::HLSL; 3309 } 3310 3311 llvm_unreachable("unexpected input language"); 3312 } 3313 3314 /// Get language name for given input kind. 3315 static StringRef GetInputKindName(InputKind IK) { 3316 switch (IK.getLanguage()) { 3317 case Language::C: 3318 return "C"; 3319 case Language::ObjC: 3320 return "Objective-C"; 3321 case Language::CXX: 3322 return "C++"; 3323 case Language::ObjCXX: 3324 return "Objective-C++"; 3325 case Language::OpenCL: 3326 return "OpenCL"; 3327 case Language::OpenCLCXX: 3328 return "C++ for OpenCL"; 3329 case Language::CUDA: 3330 return "CUDA"; 3331 case Language::RenderScript: 3332 return "RenderScript"; 3333 case Language::HIP: 3334 return "HIP"; 3335 3336 case Language::Asm: 3337 return "Asm"; 3338 case Language::LLVM_IR: 3339 return "LLVM IR"; 3340 3341 case Language::HLSL: 3342 return "HLSL"; 3343 3344 case Language::Unknown: 3345 break; 3346 } 3347 llvm_unreachable("unknown input language"); 3348 } 3349 3350 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts, 3351 SmallVectorImpl<const char *> &Args, 3352 StringAllocator SA, 3353 const llvm::Triple &T, InputKind IK) { 3354 if (IK.getFormat() == InputKind::Precompiled || 3355 IK.getLanguage() == Language::LLVM_IR) { 3356 if (Opts.ObjCAutoRefCount) 3357 GenerateArg(Args, OPT_fobjc_arc, SA); 3358 if (Opts.PICLevel != 0) 3359 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA); 3360 if (Opts.PIE) 3361 GenerateArg(Args, OPT_pic_is_pie, SA); 3362 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3363 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3364 3365 return; 3366 } 3367 3368 OptSpecifier StdOpt; 3369 switch (Opts.LangStd) { 3370 case LangStandard::lang_opencl10: 3371 case LangStandard::lang_opencl11: 3372 case LangStandard::lang_opencl12: 3373 case LangStandard::lang_opencl20: 3374 case LangStandard::lang_opencl30: 3375 case LangStandard::lang_openclcpp10: 3376 case LangStandard::lang_openclcpp2021: 3377 StdOpt = OPT_cl_std_EQ; 3378 break; 3379 default: 3380 StdOpt = OPT_std_EQ; 3381 break; 3382 } 3383 3384 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd); 3385 GenerateArg(Args, StdOpt, LangStandard.getName(), SA); 3386 3387 if (Opts.IncludeDefaultHeader) 3388 GenerateArg(Args, OPT_finclude_default_header, SA); 3389 if (Opts.DeclareOpenCLBuiltins) 3390 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA); 3391 3392 const LangOptions *LangOpts = &Opts; 3393 3394 #define LANG_OPTION_WITH_MARSHALLING( \ 3395 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3396 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3397 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3398 MERGER, EXTRACTOR, TABLE_INDEX) \ 3399 GENERATE_OPTION_WITH_MARSHALLING( \ 3400 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 3401 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 3402 #include "clang/Driver/Options.inc" 3403 #undef LANG_OPTION_WITH_MARSHALLING 3404 3405 // The '-fcf-protection=' option is generated by CodeGenOpts generator. 3406 3407 if (Opts.ObjC) { 3408 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA); 3409 3410 if (Opts.GC == LangOptions::GCOnly) 3411 GenerateArg(Args, OPT_fobjc_gc_only, SA); 3412 else if (Opts.GC == LangOptions::HybridGC) 3413 GenerateArg(Args, OPT_fobjc_gc, SA); 3414 else if (Opts.ObjCAutoRefCount == 1) 3415 GenerateArg(Args, OPT_fobjc_arc, SA); 3416 3417 if (Opts.ObjCWeakRuntime) 3418 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA); 3419 3420 if (Opts.ObjCWeak) 3421 GenerateArg(Args, OPT_fobjc_weak, SA); 3422 3423 if (Opts.ObjCSubscriptingLegacyRuntime) 3424 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA); 3425 } 3426 3427 if (Opts.GNUCVersion != 0) { 3428 unsigned Major = Opts.GNUCVersion / 100 / 100; 3429 unsigned Minor = (Opts.GNUCVersion / 100) % 100; 3430 unsigned Patch = Opts.GNUCVersion % 100; 3431 GenerateArg(Args, OPT_fgnuc_version_EQ, 3432 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA); 3433 } 3434 3435 if (Opts.IgnoreXCOFFVisibility) 3436 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA); 3437 3438 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) { 3439 GenerateArg(Args, OPT_ftrapv, SA); 3440 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA); 3441 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) { 3442 GenerateArg(Args, OPT_fwrapv, SA); 3443 } 3444 3445 if (Opts.MSCompatibilityVersion != 0) { 3446 unsigned Major = Opts.MSCompatibilityVersion / 10000000; 3447 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100; 3448 unsigned Subminor = Opts.MSCompatibilityVersion % 100000; 3449 GenerateArg(Args, OPT_fms_compatibility_version, 3450 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA); 3451 } 3452 3453 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) { 3454 if (!Opts.Trigraphs) 3455 GenerateArg(Args, OPT_fno_trigraphs, SA); 3456 } else { 3457 if (Opts.Trigraphs) 3458 GenerateArg(Args, OPT_ftrigraphs, SA); 3459 } 3460 3461 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200)) 3462 GenerateArg(Args, OPT_fblocks, SA); 3463 3464 if (Opts.ConvergentFunctions && 3465 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice)) 3466 GenerateArg(Args, OPT_fconvergent_functions, SA); 3467 3468 if (Opts.NoBuiltin && !Opts.Freestanding) 3469 GenerateArg(Args, OPT_fno_builtin, SA); 3470 3471 if (!Opts.NoBuiltin) 3472 for (const auto &Func : Opts.NoBuiltinFuncs) 3473 GenerateArg(Args, OPT_fno_builtin_, Func, SA); 3474 3475 if (Opts.LongDoubleSize == 128) 3476 GenerateArg(Args, OPT_mlong_double_128, SA); 3477 else if (Opts.LongDoubleSize == 64) 3478 GenerateArg(Args, OPT_mlong_double_64, SA); 3479 else if (Opts.LongDoubleSize == 80) 3480 GenerateArg(Args, OPT_mlong_double_80, SA); 3481 3482 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='. 3483 3484 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or 3485 // '-fopenmp-targets='. 3486 if (Opts.OpenMP && !Opts.OpenMPSimd) { 3487 GenerateArg(Args, OPT_fopenmp, SA); 3488 3489 if (Opts.OpenMP != 50) 3490 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3491 3492 if (!Opts.OpenMPUseTLS) 3493 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA); 3494 3495 if (Opts.OpenMPIsDevice) 3496 GenerateArg(Args, OPT_fopenmp_is_device, SA); 3497 3498 if (Opts.OpenMPIRBuilder) 3499 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA); 3500 } 3501 3502 if (Opts.OpenMPSimd) { 3503 GenerateArg(Args, OPT_fopenmp_simd, SA); 3504 3505 if (Opts.OpenMP != 50) 3506 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA); 3507 } 3508 3509 if (Opts.OpenMPThreadSubscription) 3510 GenerateArg(Args, OPT_fopenmp_assume_threads_oversubscription, SA); 3511 3512 if (Opts.OpenMPTeamSubscription) 3513 GenerateArg(Args, OPT_fopenmp_assume_teams_oversubscription, SA); 3514 3515 if (Opts.OpenMPTargetDebug != 0) 3516 GenerateArg(Args, OPT_fopenmp_target_debug_EQ, 3517 Twine(Opts.OpenMPTargetDebug), SA); 3518 3519 if (Opts.OpenMPCUDANumSMs != 0) 3520 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ, 3521 Twine(Opts.OpenMPCUDANumSMs), SA); 3522 3523 if (Opts.OpenMPCUDABlocksPerSM != 0) 3524 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ, 3525 Twine(Opts.OpenMPCUDABlocksPerSM), SA); 3526 3527 if (Opts.OpenMPCUDAReductionBufNum != 1024) 3528 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3529 Twine(Opts.OpenMPCUDAReductionBufNum), SA); 3530 3531 if (!Opts.OMPTargetTriples.empty()) { 3532 std::string Targets; 3533 llvm::raw_string_ostream OS(Targets); 3534 llvm::interleave( 3535 Opts.OMPTargetTriples, OS, 3536 [&OS](const llvm::Triple &T) { OS << T.str(); }, ","); 3537 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA); 3538 } 3539 3540 if (!Opts.OMPHostIRFile.empty()) 3541 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA); 3542 3543 if (Opts.OpenMPCUDAMode) 3544 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA); 3545 3546 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are 3547 // generated from CodeGenOptions. 3548 3549 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast) 3550 GenerateArg(Args, OPT_ffp_contract, "fast", SA); 3551 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On) 3552 GenerateArg(Args, OPT_ffp_contract, "on", SA); 3553 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off) 3554 GenerateArg(Args, OPT_ffp_contract, "off", SA); 3555 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas) 3556 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA); 3557 3558 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize)) 3559 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA); 3560 3561 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'. 3562 for (const std::string &F : Opts.NoSanitizeFiles) 3563 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA); 3564 3565 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8) 3566 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA); 3567 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4) 3568 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA); 3569 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6) 3570 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA); 3571 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7) 3572 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA); 3573 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9) 3574 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA); 3575 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11) 3576 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA); 3577 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12) 3578 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA); 3579 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver14) 3580 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "14.0", SA); 3581 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver15) 3582 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "15.0", SA); 3583 3584 if (Opts.getSignReturnAddressScope() == 3585 LangOptions::SignReturnAddressScopeKind::All) 3586 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA); 3587 else if (Opts.getSignReturnAddressScope() == 3588 LangOptions::SignReturnAddressScopeKind::NonLeaf) 3589 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA); 3590 3591 if (Opts.getSignReturnAddressKey() == 3592 LangOptions::SignReturnAddressKeyKind::BKey) 3593 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA); 3594 3595 if (Opts.CXXABI) 3596 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI), 3597 SA); 3598 3599 if (Opts.RelativeCXXABIVTables) 3600 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA); 3601 else 3602 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA); 3603 3604 if (Opts.UseTargetPathSeparator) 3605 GenerateArg(Args, OPT_ffile_reproducible, SA); 3606 else 3607 GenerateArg(Args, OPT_fno_file_reproducible, SA); 3608 3609 for (const auto &MP : Opts.MacroPrefixMap) 3610 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA); 3611 3612 if (!Opts.RandstructSeed.empty()) 3613 GenerateArg(Args, OPT_frandomize_layout_seed_EQ, Opts.RandstructSeed, SA); 3614 } 3615 3616 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args, 3617 InputKind IK, const llvm::Triple &T, 3618 std::vector<std::string> &Includes, 3619 DiagnosticsEngine &Diags) { 3620 unsigned NumErrorsBefore = Diags.getNumErrors(); 3621 3622 if (IK.getFormat() == InputKind::Precompiled || 3623 IK.getLanguage() == Language::LLVM_IR) { 3624 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 3625 // PassManager in BackendUtil.cpp. They need to be initialized no matter 3626 // what the input type is. 3627 if (Args.hasArg(OPT_fobjc_arc)) 3628 Opts.ObjCAutoRefCount = 1; 3629 // PICLevel and PIELevel are needed during code generation and this should 3630 // be set regardless of the input type. 3631 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 3632 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 3633 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 3634 Diags, Opts.Sanitize); 3635 3636 return Diags.getNumErrors() == NumErrorsBefore; 3637 } 3638 3639 // Other LangOpts are only initialized when the input is not AST or LLVM IR. 3640 // FIXME: Should we really be parsing this for an Language::Asm input? 3641 3642 // FIXME: Cleanup per-file based stuff. 3643 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 3644 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 3645 LangStd = LangStandard::getLangKind(A->getValue()); 3646 if (LangStd == LangStandard::lang_unspecified) { 3647 Diags.Report(diag::err_drv_invalid_value) 3648 << A->getAsString(Args) << A->getValue(); 3649 // Report supported standards with short description. 3650 for (unsigned KindValue = 0; 3651 KindValue != LangStandard::lang_unspecified; 3652 ++KindValue) { 3653 const LangStandard &Std = LangStandard::getLangStandardForKind( 3654 static_cast<LangStandard::Kind>(KindValue)); 3655 if (IsInputCompatibleWithStandard(IK, Std)) { 3656 auto Diag = Diags.Report(diag::note_drv_use_standard); 3657 Diag << Std.getName() << Std.getDescription(); 3658 unsigned NumAliases = 0; 3659 #define LANGSTANDARD(id, name, lang, desc, features) 3660 #define LANGSTANDARD_ALIAS(id, alias) \ 3661 if (KindValue == LangStandard::lang_##id) ++NumAliases; 3662 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3663 #include "clang/Basic/LangStandards.def" 3664 Diag << NumAliases; 3665 #define LANGSTANDARD(id, name, lang, desc, features) 3666 #define LANGSTANDARD_ALIAS(id, alias) \ 3667 if (KindValue == LangStandard::lang_##id) Diag << alias; 3668 #define LANGSTANDARD_ALIAS_DEPR(id, alias) 3669 #include "clang/Basic/LangStandards.def" 3670 } 3671 } 3672 } else { 3673 // Valid standard, check to make sure language and standard are 3674 // compatible. 3675 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 3676 if (!IsInputCompatibleWithStandard(IK, Std)) { 3677 Diags.Report(diag::err_drv_argument_not_allowed_with) 3678 << A->getAsString(Args) << GetInputKindName(IK); 3679 } 3680 } 3681 } 3682 3683 // -cl-std only applies for OpenCL language standards. 3684 // Override the -std option in this case. 3685 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 3686 LangStandard::Kind OpenCLLangStd 3687 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 3688 .Cases("cl", "CL", LangStandard::lang_opencl10) 3689 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10) 3690 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 3691 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 3692 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 3693 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30) 3694 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp10) 3695 .Cases("clc++1.0", "CLC++1.0", LangStandard::lang_openclcpp10) 3696 .Cases("clc++2021", "CLC++2021", LangStandard::lang_openclcpp2021) 3697 .Default(LangStandard::lang_unspecified); 3698 3699 if (OpenCLLangStd == LangStandard::lang_unspecified) { 3700 Diags.Report(diag::err_drv_invalid_value) 3701 << A->getAsString(Args) << A->getValue(); 3702 } 3703 else 3704 LangStd = OpenCLLangStd; 3705 } 3706 3707 // These need to be parsed now. They are used to set OpenCL defaults. 3708 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 3709 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins); 3710 3711 LangOptions::setLangDefaults(Opts, IK.getLanguage(), T, Includes, LangStd); 3712 3713 // The key paths of codegen options defined in Options.td start with 3714 // "LangOpts->". Let's provide the expected variable name and type. 3715 LangOptions *LangOpts = &Opts; 3716 3717 #define LANG_OPTION_WITH_MARSHALLING( \ 3718 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 3719 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 3720 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 3721 MERGER, EXTRACTOR, TABLE_INDEX) \ 3722 PARSE_OPTION_WITH_MARSHALLING( \ 3723 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 3724 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 3725 #include "clang/Driver/Options.inc" 3726 #undef LANG_OPTION_WITH_MARSHALLING 3727 3728 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 3729 StringRef Name = A->getValue(); 3730 if (Name == "full" || Name == "branch") { 3731 Opts.CFProtectionBranch = 1; 3732 } 3733 } 3734 3735 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) && 3736 !Args.hasArg(OPT_sycl_std_EQ)) { 3737 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to 3738 // provide -sycl-std=, we want to default it to whatever the default SYCL 3739 // version is. I could not find a way to express this with the options 3740 // tablegen because we still want this value to be SYCL_None when the user 3741 // is not in device or host mode. 3742 Opts.setSYCLVersion(LangOptions::SYCL_Default); 3743 } 3744 3745 if (Opts.ObjC) { 3746 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 3747 StringRef value = arg->getValue(); 3748 if (Opts.ObjCRuntime.tryParse(value)) 3749 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 3750 } 3751 3752 if (Args.hasArg(OPT_fobjc_gc_only)) 3753 Opts.setGC(LangOptions::GCOnly); 3754 else if (Args.hasArg(OPT_fobjc_gc)) 3755 Opts.setGC(LangOptions::HybridGC); 3756 else if (Args.hasArg(OPT_fobjc_arc)) { 3757 Opts.ObjCAutoRefCount = 1; 3758 if (!Opts.ObjCRuntime.allowsARC()) 3759 Diags.Report(diag::err_arc_unsupported_on_runtime); 3760 } 3761 3762 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 3763 // whether the feature is actually enabled. This is predominantly 3764 // determined by -fobjc-runtime, but we allow it to be overridden 3765 // from the command line for testing purposes. 3766 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 3767 Opts.ObjCWeakRuntime = 1; 3768 else 3769 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 3770 3771 // ObjCWeak determines whether __weak is actually enabled. 3772 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 3773 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 3774 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 3775 assert(!Opts.ObjCWeak); 3776 } else if (Opts.getGC() != LangOptions::NonGC) { 3777 Diags.Report(diag::err_objc_weak_with_gc); 3778 } else if (!Opts.ObjCWeakRuntime) { 3779 Diags.Report(diag::err_objc_weak_unsupported); 3780 } else { 3781 Opts.ObjCWeak = 1; 3782 } 3783 } else if (Opts.ObjCAutoRefCount) { 3784 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 3785 } 3786 3787 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 3788 Opts.ObjCSubscriptingLegacyRuntime = 3789 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 3790 } 3791 3792 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) { 3793 // Check that the version has 1 to 3 components and the minor and patch 3794 // versions fit in two decimal digits. 3795 VersionTuple GNUCVer; 3796 bool Invalid = GNUCVer.tryParse(A->getValue()); 3797 unsigned Major = GNUCVer.getMajor(); 3798 unsigned Minor = GNUCVer.getMinor().value_or(0); 3799 unsigned Patch = GNUCVer.getSubminor().value_or(0); 3800 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) { 3801 Diags.Report(diag::err_drv_invalid_value) 3802 << A->getAsString(Args) << A->getValue(); 3803 } 3804 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch; 3805 } 3806 3807 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility))) 3808 Opts.IgnoreXCOFFVisibility = 1; 3809 3810 if (Args.hasArg(OPT_ftrapv)) { 3811 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 3812 // Set the handler, if one is specified. 3813 Opts.OverflowHandler = 3814 std::string(Args.getLastArgValue(OPT_ftrapv_handler)); 3815 } 3816 else if (Args.hasArg(OPT_fwrapv)) 3817 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 3818 3819 Opts.MSCompatibilityVersion = 0; 3820 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 3821 VersionTuple VT; 3822 if (VT.tryParse(A->getValue())) 3823 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 3824 << A->getValue(); 3825 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 3826 VT.getMinor().value_or(0) * 100000 + 3827 VT.getSubminor().value_or(0); 3828 } 3829 3830 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs 3831 // is specified, or -std is set to a conforming mode. 3832 // Trigraphs are disabled by default in c++1z onwards. 3833 // For z/OS, trigraphs are enabled by default (without regard to the above). 3834 Opts.Trigraphs = 3835 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS(); 3836 Opts.Trigraphs = 3837 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 3838 3839 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 3840 && Opts.OpenCLVersion == 200); 3841 3842 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || 3843 Opts.SYCLIsDevice || 3844 Args.hasArg(OPT_fconvergent_functions); 3845 3846 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 3847 if (!Opts.NoBuiltin) 3848 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 3849 if (Arg *A = Args.getLastArg(options::OPT_LongDouble_Group)) { 3850 if (A->getOption().matches(options::OPT_mlong_double_64)) 3851 Opts.LongDoubleSize = 64; 3852 else if (A->getOption().matches(options::OPT_mlong_double_80)) 3853 Opts.LongDoubleSize = 80; 3854 else if (A->getOption().matches(options::OPT_mlong_double_128)) 3855 Opts.LongDoubleSize = 128; 3856 else 3857 Opts.LongDoubleSize = 0; 3858 } 3859 if (Opts.FastRelaxedMath || Opts.CLUnsafeMath) 3860 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 3861 3862 llvm::sort(Opts.ModuleFeatures); 3863 3864 // -mrtd option 3865 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 3866 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 3867 Diags.Report(diag::err_drv_argument_not_allowed_with) 3868 << A->getSpelling() << "-fdefault-calling-conv"; 3869 else { 3870 if (T.getArch() != llvm::Triple::x86) 3871 Diags.Report(diag::err_drv_argument_not_allowed_with) 3872 << A->getSpelling() << T.getTriple(); 3873 else 3874 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 3875 } 3876 } 3877 3878 // Check if -fopenmp is specified and set default version to 5.0. 3879 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0; 3880 // Check if -fopenmp-simd is specified. 3881 bool IsSimdSpecified = 3882 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd, 3883 /*Default=*/false); 3884 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified; 3885 Opts.OpenMPUseTLS = 3886 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 3887 Opts.OpenMPIsDevice = 3888 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 3889 Opts.OpenMPIRBuilder = 3890 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder); 3891 bool IsTargetSpecified = 3892 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ); 3893 3894 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice; 3895 3896 if (Opts.OpenMP || Opts.OpenMPSimd) { 3897 if (int Version = getLastArgIntValue( 3898 Args, OPT_fopenmp_version_EQ, 3899 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags)) 3900 Opts.OpenMP = Version; 3901 // Provide diagnostic when a given target is not expected to be an OpenMP 3902 // device or host. 3903 if (!Opts.OpenMPIsDevice) { 3904 switch (T.getArch()) { 3905 default: 3906 break; 3907 // Add unsupported host targets here: 3908 case llvm::Triple::nvptx: 3909 case llvm::Triple::nvptx64: 3910 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str(); 3911 break; 3912 } 3913 } 3914 } 3915 3916 // Set the flag to prevent the implementation from emitting device exception 3917 // handling code for those requiring so. 3918 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) || 3919 Opts.OpenCLCPlusPlus) { 3920 3921 Opts.Exceptions = 0; 3922 Opts.CXXExceptions = 0; 3923 } 3924 if (Opts.OpenMPIsDevice && T.isNVPTX()) { 3925 Opts.OpenMPCUDANumSMs = 3926 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ, 3927 Opts.OpenMPCUDANumSMs, Diags); 3928 Opts.OpenMPCUDABlocksPerSM = 3929 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ, 3930 Opts.OpenMPCUDABlocksPerSM, Diags); 3931 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue( 3932 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ, 3933 Opts.OpenMPCUDAReductionBufNum, Diags); 3934 } 3935 3936 // Set the value of the debugging flag used in the new offloading device RTL. 3937 // Set either by a specific value or to a default if not specified. 3938 if (Opts.OpenMPIsDevice && (Args.hasArg(OPT_fopenmp_target_debug) || 3939 Args.hasArg(OPT_fopenmp_target_debug_EQ))) { 3940 Opts.OpenMPTargetDebug = getLastArgIntValue( 3941 Args, OPT_fopenmp_target_debug_EQ, Opts.OpenMPTargetDebug, Diags); 3942 if (!Opts.OpenMPTargetDebug && Args.hasArg(OPT_fopenmp_target_debug)) 3943 Opts.OpenMPTargetDebug = 1; 3944 } 3945 3946 if (Opts.OpenMPIsDevice) { 3947 if (Args.hasArg(OPT_fopenmp_assume_teams_oversubscription)) 3948 Opts.OpenMPTeamSubscription = true; 3949 if (Args.hasArg(OPT_fopenmp_assume_threads_oversubscription)) 3950 Opts.OpenMPThreadSubscription = true; 3951 } 3952 3953 // Get the OpenMP target triples if any. 3954 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 3955 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit }; 3956 auto getArchPtrSize = [](const llvm::Triple &T) { 3957 if (T.isArch16Bit()) 3958 return Arch16Bit; 3959 if (T.isArch32Bit()) 3960 return Arch32Bit; 3961 assert(T.isArch64Bit() && "Expected 64-bit architecture"); 3962 return Arch64Bit; 3963 }; 3964 3965 for (unsigned i = 0; i < A->getNumValues(); ++i) { 3966 llvm::Triple TT(A->getValue(i)); 3967 3968 if (TT.getArch() == llvm::Triple::UnknownArch || 3969 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() || 3970 TT.getArch() == llvm::Triple::nvptx || 3971 TT.getArch() == llvm::Triple::nvptx64 || 3972 TT.getArch() == llvm::Triple::amdgcn || 3973 TT.getArch() == llvm::Triple::x86 || 3974 TT.getArch() == llvm::Triple::x86_64)) 3975 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i); 3976 else if (getArchPtrSize(T) != getArchPtrSize(TT)) 3977 Diags.Report(diag::err_drv_incompatible_omp_arch) 3978 << A->getValue(i) << T.str(); 3979 else 3980 Opts.OMPTargetTriples.push_back(TT); 3981 } 3982 } 3983 3984 // Get OpenMP host file path if any and report if a non existent file is 3985 // found 3986 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 3987 Opts.OMPHostIRFile = A->getValue(); 3988 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 3989 Diags.Report(diag::err_drv_omp_host_ir_file_not_found) 3990 << Opts.OMPHostIRFile; 3991 } 3992 3993 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options 3994 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) && 3995 Args.hasArg(options::OPT_fopenmp_cuda_mode); 3996 3997 // FIXME: Eliminate this dependency. 3998 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 3999 OptSize = getOptimizationLevelSize(Args); 4000 Opts.Optimize = Opt != 0; 4001 Opts.OptimizeSize = OptSize != 0; 4002 4003 // This is the __NO_INLINE__ define, which just depends on things like the 4004 // optimization level and -fno-inline, not actually whether the backend has 4005 // inlining enabled. 4006 Opts.NoInlineDefine = !Opts.Optimize; 4007 if (Arg *InlineArg = Args.getLastArg( 4008 options::OPT_finline_functions, options::OPT_finline_hint_functions, 4009 options::OPT_fno_inline_functions, options::OPT_fno_inline)) 4010 if (InlineArg->getOption().matches(options::OPT_fno_inline)) 4011 Opts.NoInlineDefine = true; 4012 4013 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 4014 StringRef Val = A->getValue(); 4015 if (Val == "fast") 4016 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast); 4017 else if (Val == "on") 4018 Opts.setDefaultFPContractMode(LangOptions::FPM_On); 4019 else if (Val == "off") 4020 Opts.setDefaultFPContractMode(LangOptions::FPM_Off); 4021 else if (Val == "fast-honor-pragmas") 4022 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas); 4023 else 4024 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 4025 } 4026 4027 // Parse -fsanitize= arguments. 4028 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 4029 Diags, Opts.Sanitize); 4030 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ); 4031 std::vector<std::string> systemIgnorelists = 4032 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ); 4033 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(), 4034 systemIgnorelists.begin(), 4035 systemIgnorelists.end()); 4036 4037 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) { 4038 Opts.setClangABICompat(LangOptions::ClangABI::Latest); 4039 4040 StringRef Ver = A->getValue(); 4041 std::pair<StringRef, StringRef> VerParts = Ver.split('.'); 4042 unsigned Major, Minor = 0; 4043 4044 // Check the version number is valid: either 3.x (0 <= x <= 9) or 4045 // y or y.0 (4 <= y <= current version). 4046 if (!VerParts.first.startswith("0") && 4047 !VerParts.first.getAsInteger(10, Major) && 4048 3 <= Major && Major <= CLANG_VERSION_MAJOR && 4049 (Major == 3 ? VerParts.second.size() == 1 && 4050 !VerParts.second.getAsInteger(10, Minor) 4051 : VerParts.first.size() == Ver.size() || 4052 VerParts.second == "0")) { 4053 // Got a valid version number. 4054 if (Major == 3 && Minor <= 8) 4055 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8); 4056 else if (Major <= 4) 4057 Opts.setClangABICompat(LangOptions::ClangABI::Ver4); 4058 else if (Major <= 6) 4059 Opts.setClangABICompat(LangOptions::ClangABI::Ver6); 4060 else if (Major <= 7) 4061 Opts.setClangABICompat(LangOptions::ClangABI::Ver7); 4062 else if (Major <= 9) 4063 Opts.setClangABICompat(LangOptions::ClangABI::Ver9); 4064 else if (Major <= 11) 4065 Opts.setClangABICompat(LangOptions::ClangABI::Ver11); 4066 else if (Major <= 12) 4067 Opts.setClangABICompat(LangOptions::ClangABI::Ver12); 4068 else if (Major <= 14) 4069 Opts.setClangABICompat(LangOptions::ClangABI::Ver14); 4070 else if (Major <= 15) 4071 Opts.setClangABICompat(LangOptions::ClangABI::Ver15); 4072 } else if (Ver != "latest") { 4073 Diags.Report(diag::err_drv_invalid_value) 4074 << A->getAsString(Args) << A->getValue(); 4075 } 4076 } 4077 4078 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) { 4079 StringRef SignScope = A->getValue(); 4080 4081 if (SignScope.equals_insensitive("none")) 4082 Opts.setSignReturnAddressScope( 4083 LangOptions::SignReturnAddressScopeKind::None); 4084 else if (SignScope.equals_insensitive("all")) 4085 Opts.setSignReturnAddressScope( 4086 LangOptions::SignReturnAddressScopeKind::All); 4087 else if (SignScope.equals_insensitive("non-leaf")) 4088 Opts.setSignReturnAddressScope( 4089 LangOptions::SignReturnAddressScopeKind::NonLeaf); 4090 else 4091 Diags.Report(diag::err_drv_invalid_value) 4092 << A->getAsString(Args) << SignScope; 4093 4094 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) { 4095 StringRef SignKey = A->getValue(); 4096 if (!SignScope.empty() && !SignKey.empty()) { 4097 if (SignKey.equals_insensitive("a_key")) 4098 Opts.setSignReturnAddressKey( 4099 LangOptions::SignReturnAddressKeyKind::AKey); 4100 else if (SignKey.equals_insensitive("b_key")) 4101 Opts.setSignReturnAddressKey( 4102 LangOptions::SignReturnAddressKeyKind::BKey); 4103 else 4104 Diags.Report(diag::err_drv_invalid_value) 4105 << A->getAsString(Args) << SignKey; 4106 } 4107 } 4108 } 4109 4110 // The value can be empty, which indicates the system default should be used. 4111 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ); 4112 if (!CXXABI.empty()) { 4113 if (!TargetCXXABI::isABI(CXXABI)) { 4114 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI; 4115 } else { 4116 auto Kind = TargetCXXABI::getKind(CXXABI); 4117 if (!TargetCXXABI::isSupportedCXXABI(T, Kind)) 4118 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str(); 4119 else 4120 Opts.CXXABI = Kind; 4121 } 4122 } 4123 4124 Opts.RelativeCXXABIVTables = 4125 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables, 4126 options::OPT_fno_experimental_relative_cxx_abi_vtables, 4127 TargetCXXABI::usesRelativeVTables(T)); 4128 4129 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) { 4130 auto Split = StringRef(A).split('='); 4131 Opts.MacroPrefixMap.insert( 4132 {std::string(Split.first), std::string(Split.second)}); 4133 } 4134 4135 Opts.UseTargetPathSeparator = 4136 !Args.getLastArg(OPT_fno_file_reproducible) && 4137 (Args.getLastArg(OPT_ffile_compilation_dir_EQ) || 4138 Args.getLastArg(OPT_fmacro_prefix_map_EQ) || 4139 Args.getLastArg(OPT_ffile_reproducible)); 4140 4141 // Error if -mvscale-min is unbounded. 4142 if (Arg *A = Args.getLastArg(options::OPT_mvscale_min_EQ)) { 4143 unsigned VScaleMin; 4144 if (StringRef(A->getValue()).getAsInteger(10, VScaleMin) || VScaleMin == 0) 4145 Diags.Report(diag::err_cc1_unbounded_vscale_min); 4146 } 4147 4148 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_file_EQ)) { 4149 std::ifstream SeedFile(A->getValue(0)); 4150 4151 if (!SeedFile.is_open()) 4152 Diags.Report(diag::err_drv_cannot_open_randomize_layout_seed_file) 4153 << A->getValue(0); 4154 4155 std::getline(SeedFile, Opts.RandstructSeed); 4156 } 4157 4158 if (const Arg *A = Args.getLastArg(OPT_frandomize_layout_seed_EQ)) 4159 Opts.RandstructSeed = A->getValue(0); 4160 4161 // Validate options for HLSL 4162 if (Opts.HLSL) { 4163 bool SupportedTarget = T.getArch() == llvm::Triple::dxil && 4164 T.getOS() == llvm::Triple::ShaderModel; 4165 if (!SupportedTarget) 4166 Diags.Report(diag::err_drv_hlsl_unsupported_target) << T.str(); 4167 } 4168 4169 return Diags.getNumErrors() == NumErrorsBefore; 4170 } 4171 4172 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) { 4173 switch (Action) { 4174 case frontend::ASTDeclList: 4175 case frontend::ASTDump: 4176 case frontend::ASTPrint: 4177 case frontend::ASTView: 4178 case frontend::EmitAssembly: 4179 case frontend::EmitBC: 4180 case frontend::EmitHTML: 4181 case frontend::EmitLLVM: 4182 case frontend::EmitLLVMOnly: 4183 case frontend::EmitCodeGenOnly: 4184 case frontend::EmitObj: 4185 case frontend::ExtractAPI: 4186 case frontend::FixIt: 4187 case frontend::GenerateModule: 4188 case frontend::GenerateModuleInterface: 4189 case frontend::GenerateHeaderUnit: 4190 case frontend::GeneratePCH: 4191 case frontend::GenerateInterfaceStubs: 4192 case frontend::ParseSyntaxOnly: 4193 case frontend::ModuleFileInfo: 4194 case frontend::VerifyPCH: 4195 case frontend::PluginAction: 4196 case frontend::RewriteObjC: 4197 case frontend::RewriteTest: 4198 case frontend::RunAnalysis: 4199 case frontend::TemplightDump: 4200 case frontend::MigrateSource: 4201 return false; 4202 4203 case frontend::DumpCompilerOptions: 4204 case frontend::DumpRawTokens: 4205 case frontend::DumpTokens: 4206 case frontend::InitOnly: 4207 case frontend::PrintPreamble: 4208 case frontend::PrintPreprocessedInput: 4209 case frontend::RewriteMacros: 4210 case frontend::RunPreprocessorOnly: 4211 case frontend::PrintDependencyDirectivesSourceMinimizerOutput: 4212 return true; 4213 } 4214 llvm_unreachable("invalid frontend action"); 4215 } 4216 4217 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts, 4218 SmallVectorImpl<const char *> &Args, 4219 CompilerInvocation::StringAllocator SA, 4220 const LangOptions &LangOpts, 4221 const FrontendOptions &FrontendOpts, 4222 const CodeGenOptions &CodeGenOpts) { 4223 PreprocessorOptions *PreprocessorOpts = &Opts; 4224 4225 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4226 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4227 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4228 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4229 MERGER, EXTRACTOR, TABLE_INDEX) \ 4230 GENERATE_OPTION_WITH_MARSHALLING( \ 4231 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4232 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4233 #include "clang/Driver/Options.inc" 4234 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4235 4236 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate) 4237 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA); 4238 4239 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn) 4240 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA); 4241 4242 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false)) 4243 GenerateArg(Args, OPT_preamble_bytes_EQ, 4244 Twine(Opts.PrecompiledPreambleBytes.first) + "," + 4245 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"), 4246 SA); 4247 4248 for (const auto &M : Opts.Macros) { 4249 // Don't generate __CET__ macro definitions. They are implied by the 4250 // -fcf-protection option that is generated elsewhere. 4251 if (M.first == "__CET__=1" && !M.second && 4252 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch) 4253 continue; 4254 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn && 4255 !CodeGenOpts.CFProtectionBranch) 4256 continue; 4257 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn && 4258 CodeGenOpts.CFProtectionBranch) 4259 continue; 4260 4261 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA); 4262 } 4263 4264 for (const auto &I : Opts.Includes) { 4265 // Don't generate OpenCL includes. They are implied by other flags that are 4266 // generated elsewhere. 4267 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader && 4268 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") || 4269 I == "opencl-c.h")) 4270 continue; 4271 // Don't generate HLSL includes. They are implied by other flags that are 4272 // generated elsewhere. 4273 if (LangOpts.HLSL && I == "hlsl.h") 4274 continue; 4275 4276 GenerateArg(Args, OPT_include, I, SA); 4277 } 4278 4279 for (const auto &CI : Opts.ChainedIncludes) 4280 GenerateArg(Args, OPT_chain_include, CI, SA); 4281 4282 for (const auto &RF : Opts.RemappedFiles) 4283 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA); 4284 4285 if (Opts.SourceDateEpoch) 4286 GenerateArg(Args, OPT_source_date_epoch, Twine(*Opts.SourceDateEpoch), SA); 4287 4288 // Don't handle LexEditorPlaceholders. It is implied by the action that is 4289 // generated elsewhere. 4290 } 4291 4292 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 4293 DiagnosticsEngine &Diags, 4294 frontend::ActionKind Action, 4295 const FrontendOptions &FrontendOpts) { 4296 unsigned NumErrorsBefore = Diags.getNumErrors(); 4297 4298 PreprocessorOptions *PreprocessorOpts = &Opts; 4299 4300 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \ 4301 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4302 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4303 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4304 MERGER, EXTRACTOR, TABLE_INDEX) \ 4305 PARSE_OPTION_WITH_MARSHALLING( \ 4306 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4307 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4308 #include "clang/Driver/Options.inc" 4309 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING 4310 4311 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) || 4312 Args.hasArg(OPT_pch_through_hdrstop_use); 4313 4314 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 4315 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 4316 4317 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 4318 StringRef Value(A->getValue()); 4319 size_t Comma = Value.find(','); 4320 unsigned Bytes = 0; 4321 unsigned EndOfLine = 0; 4322 4323 if (Comma == StringRef::npos || 4324 Value.substr(0, Comma).getAsInteger(10, Bytes) || 4325 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 4326 Diags.Report(diag::err_drv_preamble_format); 4327 else { 4328 Opts.PrecompiledPreambleBytes.first = Bytes; 4329 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 4330 } 4331 } 4332 4333 // Add the __CET__ macro if a CFProtection option is set. 4334 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) { 4335 StringRef Name = A->getValue(); 4336 if (Name == "branch") 4337 Opts.addMacroDef("__CET__=1"); 4338 else if (Name == "return") 4339 Opts.addMacroDef("__CET__=2"); 4340 else if (Name == "full") 4341 Opts.addMacroDef("__CET__=3"); 4342 } 4343 4344 // Add macros from the command line. 4345 for (const auto *A : Args.filtered(OPT_D, OPT_U)) { 4346 if (A->getOption().matches(OPT_D)) 4347 Opts.addMacroDef(A->getValue()); 4348 else 4349 Opts.addMacroUndef(A->getValue()); 4350 } 4351 4352 // Add the ordered list of -includes. 4353 for (const auto *A : Args.filtered(OPT_include)) 4354 Opts.Includes.emplace_back(A->getValue()); 4355 4356 for (const auto *A : Args.filtered(OPT_chain_include)) 4357 Opts.ChainedIncludes.emplace_back(A->getValue()); 4358 4359 for (const auto *A : Args.filtered(OPT_remap_file)) { 4360 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 4361 4362 if (Split.second.empty()) { 4363 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 4364 continue; 4365 } 4366 4367 Opts.addRemappedFile(Split.first, Split.second); 4368 } 4369 4370 if (const Arg *A = Args.getLastArg(OPT_source_date_epoch)) { 4371 StringRef Epoch = A->getValue(); 4372 // SOURCE_DATE_EPOCH, if specified, must be a non-negative decimal integer. 4373 // On time64 systems, pick 253402300799 (the UNIX timestamp of 4374 // 9999-12-31T23:59:59Z) as the upper bound. 4375 const uint64_t MaxTimestamp = 4376 std::min<uint64_t>(std::numeric_limits<time_t>::max(), 253402300799); 4377 uint64_t V; 4378 if (Epoch.getAsInteger(10, V) || V > MaxTimestamp) { 4379 Diags.Report(diag::err_fe_invalid_source_date_epoch) 4380 << Epoch << MaxTimestamp; 4381 } else { 4382 Opts.SourceDateEpoch = V; 4383 } 4384 } 4385 4386 // Always avoid lexing editor placeholders when we're just running the 4387 // preprocessor as we never want to emit the 4388 // "editor placeholder in source file" error in PP only mode. 4389 if (isStrictlyPreprocessorAction(Action)) 4390 Opts.LexEditorPlaceholders = false; 4391 4392 return Diags.getNumErrors() == NumErrorsBefore; 4393 } 4394 4395 static void GeneratePreprocessorOutputArgs( 4396 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args, 4397 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) { 4398 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4399 4400 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4401 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4402 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4403 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4404 MERGER, EXTRACTOR, TABLE_INDEX) \ 4405 GENERATE_OPTION_WITH_MARSHALLING( \ 4406 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4407 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4408 #include "clang/Driver/Options.inc" 4409 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4410 4411 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP; 4412 if (Generate_dM) 4413 GenerateArg(Args, OPT_dM, SA); 4414 if (!Generate_dM && Opts.ShowMacros) 4415 GenerateArg(Args, OPT_dD, SA); 4416 if (Opts.DirectivesOnly) 4417 GenerateArg(Args, OPT_fdirectives_only, SA); 4418 } 4419 4420 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 4421 ArgList &Args, DiagnosticsEngine &Diags, 4422 frontend::ActionKind Action) { 4423 unsigned NumErrorsBefore = Diags.getNumErrors(); 4424 4425 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts; 4426 4427 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \ 4428 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4429 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4430 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4431 MERGER, EXTRACTOR, TABLE_INDEX) \ 4432 PARSE_OPTION_WITH_MARSHALLING( \ 4433 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4434 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4435 #include "clang/Driver/Options.inc" 4436 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING 4437 4438 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM); 4439 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 4440 Opts.DirectivesOnly = Args.hasArg(OPT_fdirectives_only); 4441 4442 return Diags.getNumErrors() == NumErrorsBefore; 4443 } 4444 4445 static void GenerateTargetArgs(const TargetOptions &Opts, 4446 SmallVectorImpl<const char *> &Args, 4447 CompilerInvocation::StringAllocator SA) { 4448 const TargetOptions *TargetOpts = &Opts; 4449 #define TARGET_OPTION_WITH_MARSHALLING( \ 4450 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4451 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4452 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4453 MERGER, EXTRACTOR, TABLE_INDEX) \ 4454 GENERATE_OPTION_WITH_MARSHALLING( \ 4455 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \ 4456 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX) 4457 #include "clang/Driver/Options.inc" 4458 #undef TARGET_OPTION_WITH_MARSHALLING 4459 4460 if (!Opts.SDKVersion.empty()) 4461 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(), 4462 SA); 4463 if (!Opts.DarwinTargetVariantSDKVersion.empty()) 4464 GenerateArg(Args, OPT_darwin_target_variant_sdk_version_EQ, 4465 Opts.DarwinTargetVariantSDKVersion.getAsString(), SA); 4466 } 4467 4468 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 4469 DiagnosticsEngine &Diags) { 4470 unsigned NumErrorsBefore = Diags.getNumErrors(); 4471 4472 TargetOptions *TargetOpts = &Opts; 4473 4474 #define TARGET_OPTION_WITH_MARSHALLING( \ 4475 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \ 4476 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \ 4477 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \ 4478 MERGER, EXTRACTOR, TABLE_INDEX) \ 4479 PARSE_OPTION_WITH_MARSHALLING( \ 4480 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \ 4481 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) 4482 #include "clang/Driver/Options.inc" 4483 #undef TARGET_OPTION_WITH_MARSHALLING 4484 4485 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) { 4486 llvm::VersionTuple Version; 4487 if (Version.tryParse(A->getValue())) 4488 Diags.Report(diag::err_drv_invalid_value) 4489 << A->getAsString(Args) << A->getValue(); 4490 else 4491 Opts.SDKVersion = Version; 4492 } 4493 if (Arg *A = 4494 Args.getLastArg(options::OPT_darwin_target_variant_sdk_version_EQ)) { 4495 llvm::VersionTuple Version; 4496 if (Version.tryParse(A->getValue())) 4497 Diags.Report(diag::err_drv_invalid_value) 4498 << A->getAsString(Args) << A->getValue(); 4499 else 4500 Opts.DarwinTargetVariantSDKVersion = Version; 4501 } 4502 4503 return Diags.getNumErrors() == NumErrorsBefore; 4504 } 4505 4506 bool CompilerInvocation::CreateFromArgsImpl( 4507 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs, 4508 DiagnosticsEngine &Diags, const char *Argv0) { 4509 unsigned NumErrorsBefore = Diags.getNumErrors(); 4510 4511 // Parse the arguments. 4512 const OptTable &Opts = getDriverOptTable(); 4513 const unsigned IncludedFlagsBitmask = options::CC1Option; 4514 unsigned MissingArgIndex, MissingArgCount; 4515 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex, 4516 MissingArgCount, IncludedFlagsBitmask); 4517 LangOptions &LangOpts = *Res.getLangOpts(); 4518 4519 // Check for missing argument error. 4520 if (MissingArgCount) 4521 Diags.Report(diag::err_drv_missing_argument) 4522 << Args.getArgString(MissingArgIndex) << MissingArgCount; 4523 4524 // Issue errors on unknown arguments. 4525 for (const auto *A : Args.filtered(OPT_UNKNOWN)) { 4526 auto ArgString = A->getAsString(Args); 4527 std::string Nearest; 4528 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1) 4529 Diags.Report(diag::err_drv_unknown_argument) << ArgString; 4530 else 4531 Diags.Report(diag::err_drv_unknown_argument_with_suggestion) 4532 << ArgString << Nearest; 4533 } 4534 4535 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags); 4536 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags); 4537 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 4538 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 4539 /*DefaultDiagColor=*/false); 4540 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile); 4541 // FIXME: We shouldn't have to pass the DashX option around here 4542 InputKind DashX = Res.getFrontendOpts().DashX; 4543 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 4544 llvm::Triple T(Res.getTargetOpts().Triple); 4545 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags, 4546 Res.getFileSystemOpts().WorkingDir); 4547 4548 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes, 4549 Diags); 4550 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 4551 LangOpts.ObjCExceptions = 1; 4552 4553 for (auto Warning : Res.getDiagnosticOpts().Warnings) { 4554 if (Warning == "misexpect" && 4555 !Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation())) { 4556 Res.getCodeGenOpts().MisExpect = true; 4557 } 4558 } 4559 4560 if (LangOpts.CUDA) { 4561 // During CUDA device-side compilation, the aux triple is the 4562 // triple used for host compilation. 4563 if (LangOpts.CUDAIsDevice) 4564 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4565 } 4566 4567 // Set the triple of the host for OpenMP device compile. 4568 if (LangOpts.OpenMPIsDevice) 4569 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 4570 4571 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T, 4572 Res.getFrontendOpts().OutputFile, LangOpts); 4573 4574 // FIXME: Override value name discarding when asan or msan is used because the 4575 // backend passes depend on the name of the alloca in order to print out 4576 // names. 4577 Res.getCodeGenOpts().DiscardValueNames &= 4578 !LangOpts.Sanitize.has(SanitizerKind::Address) && 4579 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) && 4580 !LangOpts.Sanitize.has(SanitizerKind::Memory) && 4581 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory); 4582 4583 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags, 4584 Res.getFrontendOpts().ProgramAction, 4585 Res.getFrontendOpts()); 4586 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags, 4587 Res.getFrontendOpts().ProgramAction); 4588 4589 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags, 4590 Res.getFrontendOpts().ProgramAction, 4591 Res.getPreprocessorOutputOpts().ShowLineMarkers); 4592 if (!Res.getDependencyOutputOpts().OutputFile.empty() && 4593 Res.getDependencyOutputOpts().Targets.empty()) 4594 Diags.Report(diag::err_fe_dependency_file_requires_MT); 4595 4596 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses. 4597 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses && 4598 !Res.getLangOpts()->Sanitize.empty()) { 4599 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false; 4600 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored); 4601 } 4602 4603 // Store the command-line for using in the CodeView backend. 4604 if (Res.getCodeGenOpts().CodeViewCommandLine) { 4605 Res.getCodeGenOpts().Argv0 = Argv0; 4606 append_range(Res.getCodeGenOpts().CommandLineArgs, CommandLineArgs); 4607 } 4608 4609 // Set PGOOptions. Need to create a temporary VFS to read the profile 4610 // to determine the PGO type. 4611 if (!Res.getCodeGenOpts().ProfileInstrumentUsePath.empty()) { 4612 auto FS = 4613 createVFSFromOverlayFiles(Res.getHeaderSearchOpts().VFSOverlayFiles, 4614 Diags, llvm::vfs::getRealFileSystem()); 4615 setPGOUseInstrumentor(Res.getCodeGenOpts(), 4616 Res.getCodeGenOpts().ProfileInstrumentUsePath, *FS, 4617 Diags); 4618 } 4619 4620 FixupInvocation(Res, Diags, Args, DashX); 4621 4622 return Diags.getNumErrors() == NumErrorsBefore; 4623 } 4624 4625 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation, 4626 ArrayRef<const char *> CommandLineArgs, 4627 DiagnosticsEngine &Diags, 4628 const char *Argv0) { 4629 CompilerInvocation DummyInvocation; 4630 4631 return RoundTrip( 4632 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs, 4633 DiagnosticsEngine &Diags, const char *Argv0) { 4634 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0); 4635 }, 4636 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args, 4637 StringAllocator SA) { 4638 Args.push_back("-cc1"); 4639 Invocation.generateCC1CommandLine(Args, SA); 4640 }, 4641 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0); 4642 } 4643 4644 std::string CompilerInvocation::getModuleHash() const { 4645 // FIXME: Consider using SHA1 instead of MD5. 4646 llvm::HashBuilder<llvm::MD5, llvm::support::endianness::native> HBuilder; 4647 4648 // Note: For QoI reasons, the things we use as a hash here should all be 4649 // dumped via the -module-info flag. 4650 4651 // Start the signature with the compiler version. 4652 HBuilder.add(getClangFullRepositoryVersion()); 4653 4654 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off 4655 // and getClangFullRepositoryVersion() doesn't include git revision. 4656 HBuilder.add(serialization::VERSION_MAJOR, serialization::VERSION_MINOR); 4657 4658 // Extend the signature with the language options 4659 #define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name); 4660 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 4661 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name())); 4662 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 4663 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 4664 #include "clang/Basic/LangOptions.def" 4665 4666 HBuilder.addRange(LangOpts->ModuleFeatures); 4667 4668 HBuilder.add(LangOpts->ObjCRuntime); 4669 HBuilder.addRange(LangOpts->CommentOpts.BlockCommandNames); 4670 4671 // Extend the signature with the target options. 4672 HBuilder.add(TargetOpts->Triple, TargetOpts->CPU, TargetOpts->TuneCPU, 4673 TargetOpts->ABI); 4674 HBuilder.addRange(TargetOpts->FeaturesAsWritten); 4675 4676 // Extend the signature with preprocessor options. 4677 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 4678 HBuilder.add(ppOpts.UsePredefines, ppOpts.DetailedRecord); 4679 4680 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 4681 for (const auto &Macro : getPreprocessorOpts().Macros) { 4682 // If we're supposed to ignore this macro for the purposes of modules, 4683 // don't put it into the hash. 4684 if (!hsOpts.ModulesIgnoreMacros.empty()) { 4685 // Check whether we're ignoring this macro. 4686 StringRef MacroDef = Macro.first; 4687 if (hsOpts.ModulesIgnoreMacros.count( 4688 llvm::CachedHashString(MacroDef.split('=').first))) 4689 continue; 4690 } 4691 4692 HBuilder.add(Macro); 4693 } 4694 4695 // Extend the signature with the sysroot and other header search options. 4696 HBuilder.add(hsOpts.Sysroot, hsOpts.ModuleFormat, hsOpts.UseDebugInfo, 4697 hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, 4698 hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx, 4699 hsOpts.ModulesValidateDiagnosticOptions); 4700 HBuilder.add(hsOpts.ResourceDir); 4701 4702 if (hsOpts.ModulesStrictContextHash) { 4703 HBuilder.addRange(hsOpts.SystemHeaderPrefixes); 4704 HBuilder.addRange(hsOpts.UserEntries); 4705 4706 const DiagnosticOptions &diagOpts = getDiagnosticOpts(); 4707 #define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name); 4708 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \ 4709 HBuilder.add(diagOpts.get##Name()); 4710 #include "clang/Basic/DiagnosticOptions.def" 4711 #undef DIAGOPT 4712 #undef ENUM_DIAGOPT 4713 } 4714 4715 // Extend the signature with the user build path. 4716 HBuilder.add(hsOpts.ModuleUserBuildPath); 4717 4718 // Extend the signature with the module file extensions. 4719 for (const auto &ext : getFrontendOpts().ModuleFileExtensions) 4720 ext->hashExtension(HBuilder); 4721 4722 // When compiling with -gmodules, also hash -fdebug-prefix-map as it 4723 // affects the debug info in the PCM. 4724 if (getCodeGenOpts().DebugTypeExtRefs) 4725 HBuilder.addRange(getCodeGenOpts().DebugPrefixMap); 4726 4727 // Extend the signature with the enabled sanitizers, if at least one is 4728 // enabled. Sanitizers which cannot affect AST generation aren't hashed. 4729 SanitizerSet SanHash = LangOpts->Sanitize; 4730 SanHash.clear(getPPTransparentSanitizers()); 4731 if (!SanHash.empty()) 4732 HBuilder.add(SanHash.Mask); 4733 4734 llvm::MD5::MD5Result Result; 4735 HBuilder.getHasher().final(Result); 4736 uint64_t Hash = Result.high() ^ Result.low(); 4737 return toString(llvm::APInt(64, Hash), 36, /*Signed=*/false); 4738 } 4739 4740 void CompilerInvocation::generateCC1CommandLine( 4741 SmallVectorImpl<const char *> &Args, StringAllocator SA) const { 4742 llvm::Triple T(TargetOpts->Triple); 4743 4744 GenerateFileSystemArgs(FileSystemOpts, Args, SA); 4745 GenerateMigratorArgs(MigratorOpts, Args, SA); 4746 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA); 4747 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false); 4748 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile); 4749 GenerateTargetArgs(*TargetOpts, Args, SA); 4750 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA); 4751 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX); 4752 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile, 4753 &*LangOpts); 4754 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts, 4755 CodeGenOpts); 4756 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA, 4757 FrontendOpts.ProgramAction); 4758 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA); 4759 } 4760 4761 std::vector<std::string> CompilerInvocation::getCC1CommandLine() const { 4762 // Set up string allocator. 4763 llvm::BumpPtrAllocator Alloc; 4764 llvm::StringSaver Strings(Alloc); 4765 auto SA = [&Strings](const Twine &Arg) { return Strings.save(Arg).data(); }; 4766 4767 // Synthesize full command line from the CompilerInvocation, including "-cc1". 4768 SmallVector<const char *, 32> Args{"-cc1"}; 4769 generateCC1CommandLine(Args, SA); 4770 4771 // Convert arguments to the return type. 4772 return std::vector<std::string>{Args.begin(), Args.end()}; 4773 } 4774 4775 void CompilerInvocation::resetNonModularOptions() { 4776 getLangOpts()->resetNonModularOptions(); 4777 getPreprocessorOpts().resetNonModularOptions(); 4778 } 4779 4780 void CompilerInvocation::clearImplicitModuleBuildOptions() { 4781 getLangOpts()->ImplicitModules = false; 4782 getHeaderSearchOpts().ImplicitModuleMaps = false; 4783 getHeaderSearchOpts().ModuleCachePath.clear(); 4784 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false; 4785 getHeaderSearchOpts().BuildSessionTimestamp = 0; 4786 // The specific values we canonicalize to for pruning don't affect behaviour, 4787 /// so use the default values so they may be dropped from the command-line. 4788 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60; 4789 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60; 4790 } 4791 4792 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4793 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI, 4794 DiagnosticsEngine &Diags) { 4795 return createVFSFromCompilerInvocation(CI, Diags, 4796 llvm::vfs::getRealFileSystem()); 4797 } 4798 4799 IntrusiveRefCntPtr<llvm::vfs::FileSystem> 4800 clang::createVFSFromCompilerInvocation( 4801 const CompilerInvocation &CI, DiagnosticsEngine &Diags, 4802 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4803 return createVFSFromOverlayFiles(CI.getHeaderSearchOpts().VFSOverlayFiles, 4804 Diags, std::move(BaseFS)); 4805 } 4806 4807 IntrusiveRefCntPtr<llvm::vfs::FileSystem> clang::createVFSFromOverlayFiles( 4808 ArrayRef<std::string> VFSOverlayFiles, DiagnosticsEngine &Diags, 4809 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) { 4810 if (VFSOverlayFiles.empty()) 4811 return BaseFS; 4812 4813 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS; 4814 // earlier vfs files are on the bottom 4815 for (const auto &File : VFSOverlayFiles) { 4816 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 4817 Result->getBufferForFile(File); 4818 if (!Buffer) { 4819 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 4820 continue; 4821 } 4822 4823 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML( 4824 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File, 4825 /*DiagContext*/ nullptr, Result); 4826 if (!FS) { 4827 Diags.Report(diag::err_invalid_vfs_overlay) << File; 4828 continue; 4829 } 4830 4831 Result = FS; 4832 } 4833 return Result; 4834 } 4835