1 //===--- CompilerInvocation.cpp -------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "clang/Frontend/CompilerInvocation.h" 11 #include "TestModuleFileExtension.h" 12 #include "clang/Basic/Builtins.h" 13 #include "clang/Basic/FileManager.h" 14 #include "clang/Basic/Version.h" 15 #include "clang/Config/config.h" 16 #include "clang/Driver/DriverDiagnostic.h" 17 #include "clang/Driver/Options.h" 18 #include "clang/Driver/Util.h" 19 #include "clang/Frontend/FrontendDiagnostic.h" 20 #include "clang/Frontend/LangStandard.h" 21 #include "clang/Frontend/Utils.h" 22 #include "clang/Lex/HeaderSearchOptions.h" 23 #include "clang/Lex/PreprocessorOptions.h" 24 #include "clang/Serialization/ASTReader.h" 25 #include "clang/Serialization/ModuleFileExtension.h" 26 #include "llvm/ADT/Hashing.h" 27 #include "llvm/ADT/STLExtras.h" 28 #include "llvm/ADT/SmallVector.h" 29 #include "llvm/ADT/StringExtras.h" 30 #include "llvm/ADT/StringSwitch.h" 31 #include "llvm/ADT/Triple.h" 32 #include "llvm/Linker/Linker.h" 33 #include "llvm/Option/Arg.h" 34 #include "llvm/Option/ArgList.h" 35 #include "llvm/Option/OptTable.h" 36 #include "llvm/Option/Option.h" 37 #include "llvm/ProfileData/InstrProfReader.h" 38 #include "llvm/Support/CodeGen.h" 39 #include "llvm/Support/ErrorHandling.h" 40 #include "llvm/Support/FileSystem.h" 41 #include "llvm/Support/Host.h" 42 #include "llvm/Support/Path.h" 43 #include "llvm/Support/Process.h" 44 #include "llvm/Target/TargetOptions.h" 45 #include "llvm/Support/ScopedPrinter.h" 46 #include <atomic> 47 #include <memory> 48 #include <sys/stat.h> 49 #include <system_error> 50 using namespace clang; 51 52 //===----------------------------------------------------------------------===// 53 // Initialization. 54 //===----------------------------------------------------------------------===// 55 56 CompilerInvocationBase::CompilerInvocationBase() 57 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 58 DiagnosticOpts(new DiagnosticOptions()), 59 HeaderSearchOpts(new HeaderSearchOptions()), 60 PreprocessorOpts(new PreprocessorOptions()) {} 61 62 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 63 : RefCountedBase<CompilerInvocation>(), 64 LangOpts(new LangOptions(*X.getLangOpts())), 65 TargetOpts(new TargetOptions(X.getTargetOpts())), 66 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 67 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 68 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 69 70 CompilerInvocationBase::~CompilerInvocationBase() {} 71 72 //===----------------------------------------------------------------------===// 73 // Deserialization (from args) 74 //===----------------------------------------------------------------------===// 75 76 using namespace clang::driver; 77 using namespace clang::driver::options; 78 using namespace llvm::opt; 79 80 // 81 82 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 83 DiagnosticsEngine &Diags) { 84 unsigned DefaultOpt = 0; 85 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 86 DefaultOpt = 2; 87 88 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 89 if (A->getOption().matches(options::OPT_O0)) 90 return 0; 91 92 if (A->getOption().matches(options::OPT_Ofast)) 93 return 3; 94 95 assert (A->getOption().matches(options::OPT_O)); 96 97 StringRef S(A->getValue()); 98 if (S == "s" || S == "z" || S.empty()) 99 return 2; 100 101 if (S == "g") 102 return 1; 103 104 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags); 105 } 106 107 return DefaultOpt; 108 } 109 110 static unsigned getOptimizationLevelSize(ArgList &Args) { 111 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 112 if (A->getOption().matches(options::OPT_O)) { 113 switch (A->getValue()[0]) { 114 default: 115 return 0; 116 case 's': 117 return 1; 118 case 'z': 119 return 2; 120 } 121 } 122 } 123 return 0; 124 } 125 126 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group, 127 OptSpecifier GroupWithValue, 128 std::vector<std::string> &Diagnostics) { 129 for (Arg *A : Args.filtered(Group)) { 130 if (A->getOption().getKind() == Option::FlagClass) { 131 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add 132 // its name (minus the "W" or "R" at the beginning) to the warning list. 133 Diagnostics.push_back(A->getOption().getName().drop_front(1)); 134 } else if (A->getOption().matches(GroupWithValue)) { 135 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. 136 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); 137 } else { 138 // Otherwise, add its value (for OPT_W_Joined and similar). 139 for (const char *Arg : A->getValues()) 140 Diagnostics.emplace_back(Arg); 141 } 142 } 143 } 144 145 static void getAllNoBuiltinFuncValues(ArgList &Args, 146 std::vector<std::string> &Funcs) { 147 SmallVector<const char *, 8> Values; 148 for (const auto &Arg : Args) { 149 const Option &O = Arg->getOption(); 150 if (O.matches(options::OPT_fno_builtin_)) { 151 const char *FuncName = Arg->getValue(); 152 if (Builtin::Context::isBuiltinFunc(FuncName)) 153 Values.push_back(FuncName); 154 } 155 } 156 Funcs.insert(Funcs.end(), Values.begin(), Values.end()); 157 } 158 159 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 160 DiagnosticsEngine &Diags) { 161 using namespace options; 162 bool Success = true; 163 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 164 StringRef Name = A->getValue(); 165 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 166 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 167 .Case(CMDFLAG, NAME##Model) 168 #include "clang/StaticAnalyzer/Core/Analyses.def" 169 .Default(NumStores); 170 if (Value == NumStores) { 171 Diags.Report(diag::err_drv_invalid_value) 172 << A->getAsString(Args) << Name; 173 Success = false; 174 } else { 175 Opts.AnalysisStoreOpt = Value; 176 } 177 } 178 179 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 180 StringRef Name = A->getValue(); 181 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 182 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 183 .Case(CMDFLAG, NAME##Model) 184 #include "clang/StaticAnalyzer/Core/Analyses.def" 185 .Default(NumConstraints); 186 if (Value == NumConstraints) { 187 Diags.Report(diag::err_drv_invalid_value) 188 << A->getAsString(Args) << Name; 189 Success = false; 190 } else { 191 Opts.AnalysisConstraintsOpt = Value; 192 } 193 } 194 195 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 196 StringRef Name = A->getValue(); 197 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 198 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ 199 .Case(CMDFLAG, PD_##NAME) 200 #include "clang/StaticAnalyzer/Core/Analyses.def" 201 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 202 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 203 Diags.Report(diag::err_drv_invalid_value) 204 << A->getAsString(Args) << Name; 205 Success = false; 206 } else { 207 Opts.AnalysisDiagOpt = Value; 208 } 209 } 210 211 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 212 StringRef Name = A->getValue(); 213 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 214 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 215 .Case(CMDFLAG, NAME) 216 #include "clang/StaticAnalyzer/Core/Analyses.def" 217 .Default(NumPurgeModes); 218 if (Value == NumPurgeModes) { 219 Diags.Report(diag::err_drv_invalid_value) 220 << A->getAsString(Args) << Name; 221 Success = false; 222 } else { 223 Opts.AnalysisPurgeOpt = Value; 224 } 225 } 226 227 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 228 StringRef Name = A->getValue(); 229 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 230 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 231 .Case(CMDFLAG, NAME) 232 #include "clang/StaticAnalyzer/Core/Analyses.def" 233 .Default(NumInliningModes); 234 if (Value == NumInliningModes) { 235 Diags.Report(diag::err_drv_invalid_value) 236 << A->getAsString(Args) << Name; 237 Success = false; 238 } else { 239 Opts.InliningMode = Value; 240 } 241 } 242 243 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 244 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers); 245 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 246 247 Opts.visualizeExplodedGraphWithGraphViz = 248 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 249 Opts.visualizeExplodedGraphWithUbiGraph = 250 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 251 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 252 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 253 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 254 Opts.AnalyzeNestedBlocks = 255 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 256 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 257 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 258 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 259 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 260 Opts.maxBlockVisitOnPath = 261 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); 262 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 263 Opts.InlineMaxStackDepth = 264 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, 265 Opts.InlineMaxStackDepth, Diags); 266 267 Opts.CheckersControlList.clear(); 268 for (const Arg *A : 269 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 270 A->claim(); 271 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 272 // We can have a list of comma separated checker names, e.g: 273 // '-analyzer-checker=cocoa,unix' 274 StringRef checkerList = A->getValue(); 275 SmallVector<StringRef, 4> checkers; 276 checkerList.split(checkers, ","); 277 for (StringRef checker : checkers) 278 Opts.CheckersControlList.emplace_back(checker, enable); 279 } 280 281 // Go through the analyzer configuration options. 282 for (const Arg *A : Args.filtered(OPT_analyzer_config)) { 283 A->claim(); 284 // We can have a list of comma separated config names, e.g: 285 // '-analyzer-config key1=val1,key2=val2' 286 StringRef configList = A->getValue(); 287 SmallVector<StringRef, 4> configVals; 288 configList.split(configVals, ","); 289 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 290 StringRef key, val; 291 std::tie(key, val) = configVals[i].split("="); 292 if (val.empty()) { 293 Diags.Report(SourceLocation(), 294 diag::err_analyzer_config_no_value) << configVals[i]; 295 Success = false; 296 break; 297 } 298 if (val.find('=') != StringRef::npos) { 299 Diags.Report(SourceLocation(), 300 diag::err_analyzer_config_multiple_values) 301 << configVals[i]; 302 Success = false; 303 break; 304 } 305 Opts.Config[key] = val; 306 } 307 } 308 309 return Success; 310 } 311 312 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 313 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 314 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 315 return true; 316 } 317 318 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 319 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 320 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 321 } 322 323 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { 324 if (Arg *A = Args.getLastArg(OPT_mcode_model)) { 325 StringRef Value = A->getValue(); 326 if (Value == "small" || Value == "kernel" || Value == "medium" || 327 Value == "large") 328 return Value; 329 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; 330 } 331 return "default"; 332 } 333 334 /// \brief Create a new Regex instance out of the string value in \p RpassArg. 335 /// It returns a pointer to the newly generated Regex instance. 336 static std::shared_ptr<llvm::Regex> 337 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, 338 Arg *RpassArg) { 339 StringRef Val = RpassArg->getValue(); 340 std::string RegexError; 341 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); 342 if (!Pattern->isValid(RegexError)) { 343 Diags.Report(diag::err_drv_optimization_remark_pattern) 344 << RegexError << RpassArg->getAsString(Args); 345 Pattern.reset(); 346 } 347 return Pattern; 348 } 349 350 static bool parseDiagnosticLevelMask(StringRef FlagName, 351 const std::vector<std::string> &Levels, 352 DiagnosticsEngine *Diags, 353 DiagnosticLevelMask &M) { 354 bool Success = true; 355 for (const auto &Level : Levels) { 356 DiagnosticLevelMask const PM = 357 llvm::StringSwitch<DiagnosticLevelMask>(Level) 358 .Case("note", DiagnosticLevelMask::Note) 359 .Case("remark", DiagnosticLevelMask::Remark) 360 .Case("warning", DiagnosticLevelMask::Warning) 361 .Case("error", DiagnosticLevelMask::Error) 362 .Default(DiagnosticLevelMask::None); 363 if (PM == DiagnosticLevelMask::None) { 364 Success = false; 365 if (Diags) 366 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; 367 } 368 M = M | PM; 369 } 370 return Success; 371 } 372 373 static void parseSanitizerKinds(StringRef FlagName, 374 const std::vector<std::string> &Sanitizers, 375 DiagnosticsEngine &Diags, SanitizerSet &S) { 376 for (const auto &Sanitizer : Sanitizers) { 377 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); 378 if (K == 0) 379 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; 380 else 381 S.set(K, true); 382 } 383 } 384 385 // Set the profile kind for fprofile-instrument. 386 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args, 387 DiagnosticsEngine &Diags) { 388 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ); 389 if (A == nullptr) 390 return; 391 StringRef S = A->getValue(); 392 unsigned I = llvm::StringSwitch<unsigned>(S) 393 .Case("none", CodeGenOptions::ProfileNone) 394 .Case("clang", CodeGenOptions::ProfileClangInstr) 395 .Case("llvm", CodeGenOptions::ProfileIRInstr) 396 .Default(~0U); 397 if (I == ~0U) { 398 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args) 399 << S; 400 return; 401 } 402 CodeGenOptions::ProfileInstrKind Instrumentor = 403 static_cast<CodeGenOptions::ProfileInstrKind>(I); 404 Opts.setProfileInstr(Instrumentor); 405 } 406 407 // Set the profile kind using fprofile-instrument-use-path. 408 static void setPGOUseInstrumentor(CodeGenOptions &Opts, 409 const Twine &ProfileName) { 410 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName); 411 // In error, return silently and let Clang PGOUse report the error message. 412 if (auto E = ReaderOrErr.takeError()) { 413 llvm::consumeError(std::move(E)); 414 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 415 return; 416 } 417 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader = 418 std::move(ReaderOrErr.get()); 419 if (PGOReader->isIRLevelProfile()) 420 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr); 421 else 422 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr); 423 } 424 425 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 426 DiagnosticsEngine &Diags, 427 const TargetOptions &TargetOpts) { 428 using namespace options; 429 bool Success = true; 430 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); 431 432 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); 433 // TODO: This could be done in Driver 434 unsigned MaxOptLevel = 3; 435 if (OptimizationLevel > MaxOptLevel) { 436 // If the optimization level is not supported, fall back on the default 437 // optimization 438 Diags.Report(diag::warn_drv_optimization_value) 439 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; 440 OptimizationLevel = MaxOptLevel; 441 } 442 Opts.OptimizationLevel = OptimizationLevel; 443 444 // We must always run at least the always inlining pass. 445 Opts.setInlining( 446 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining 447 : CodeGenOptions::OnlyAlwaysInlining); 448 // -fno-inline-functions overrides OptimizationLevel > 1. 449 Opts.NoInline = Args.hasArg(OPT_fno_inline); 450 if (Arg* InlineArg = Args.getLastArg(options::OPT_finline_functions, 451 options::OPT_finline_hint_functions, 452 options::OPT_fno_inline_functions)) { 453 const Option& InlineOpt = InlineArg->getOption(); 454 if (InlineOpt.matches(options::OPT_finline_functions)) 455 Opts.setInlining(CodeGenOptions::NormalInlining); 456 else if (InlineOpt.matches(options::OPT_finline_hint_functions)) 457 Opts.setInlining(CodeGenOptions::OnlyHintInlining); 458 else 459 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining); 460 } 461 462 if (Arg *A = Args.getLastArg(OPT_fveclib)) { 463 StringRef Name = A->getValue(); 464 if (Name == "Accelerate") 465 Opts.setVecLib(CodeGenOptions::Accelerate); 466 else if (Name == "SVML") 467 Opts.setVecLib(CodeGenOptions::SVML); 468 else if (Name == "none") 469 Opts.setVecLib(CodeGenOptions::NoLibrary); 470 else 471 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 472 } 473 474 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { 475 unsigned Val = 476 llvm::StringSwitch<unsigned>(A->getValue()) 477 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly) 478 .Case("limited", codegenoptions::LimitedDebugInfo) 479 .Case("standalone", codegenoptions::FullDebugInfo) 480 .Default(~0U); 481 if (Val == ~0U) 482 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 483 << A->getValue(); 484 else 485 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val)); 486 } 487 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { 488 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue()) 489 .Case("gdb", unsigned(llvm::DebuggerKind::GDB)) 490 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB)) 491 .Case("sce", unsigned(llvm::DebuggerKind::SCE)) 492 .Default(~0U); 493 if (Val == ~0U) 494 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 495 << A->getValue(); 496 else 497 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val)); 498 } 499 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); 500 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 501 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); 502 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables); 503 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std); 504 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 505 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining); 506 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); 507 Opts.DebugExplicitImport = Triple.isPS4CPU(); 508 509 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) 510 Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); 511 512 if (const Arg *A = 513 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) 514 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; 515 516 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 517 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 518 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 519 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 520 OPT_fuse_register_sized_bitfield_access); 521 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 522 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa); 523 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 524 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 525 Opts.NoCommon = Args.hasArg(OPT_fno_common); 526 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 527 Opts.OptimizeSize = getOptimizationLevelSize(Args); 528 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 529 Args.hasArg(OPT_ffreestanding)); 530 if (Opts.SimplifyLibCalls) 531 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 532 Opts.UnrollLoops = 533 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, 534 (Opts.OptimizationLevel > 1)); 535 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); 536 537 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); 538 Opts.Autolink = !Args.hasArg(OPT_fno_autolink); 539 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); 540 541 setPGOInstrumentor(Opts, Args, Diags); 542 Opts.InstrProfileOutput = 543 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ); 544 Opts.ProfileInstrumentUsePath = 545 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ); 546 if (!Opts.ProfileInstrumentUsePath.empty()) 547 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath); 548 549 Opts.CoverageMapping = 550 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); 551 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); 552 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 553 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments); 554 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 555 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 556 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 557 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 558 Opts.CodeModel = getCodeModel(Args, Diags); 559 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 560 Opts.DisableFPElim = 561 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); 562 Opts.DisableFree = Args.hasArg(OPT_disable_free); 563 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names); 564 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 565 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 566 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 567 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 568 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 569 Args.hasArg(OPT_cl_finite_math_only) || 570 Args.hasArg(OPT_cl_fast_relaxed_math)); 571 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 572 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 573 Args.hasArg(OPT_cl_finite_math_only) || 574 Args.hasArg(OPT_cl_fast_relaxed_math)); 575 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) || 576 Args.hasArg(OPT_cl_no_signed_zeros)); 577 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero); 578 Opts.CorrectlyRoundedDivSqrt = 579 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt); 580 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); 581 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math); 582 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 583 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 584 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); 585 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 586 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); 587 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 588 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 589 Opts.IncrementalLinkerCompatible = 590 Args.hasArg(OPT_mincremental_linker_compatible); 591 Opts.PIECopyRelocations = 592 Args.hasArg(OPT_mpie_copy_relocations); 593 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 594 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 595 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 596 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 597 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 598 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 599 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 600 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 601 Args.hasArg(OPT_cl_fast_relaxed_math); 602 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 603 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 604 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); 605 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") 606 Diags.Report(diag::err_drv_invalid_value) 607 << Args.getLastArg(OPT_mthread_model)->getAsString(Args) 608 << Opts.ThreadModel; 609 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 610 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 611 612 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, 613 OPT_fno_function_sections, false); 614 Opts.DataSections = Args.hasFlag(OPT_fdata_sections, 615 OPT_fno_data_sections, false); 616 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, 617 OPT_fno_unique_section_names, true); 618 619 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); 620 621 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables); 622 623 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); 624 const Arg *A = Args.getLastArg(OPT_flto, OPT_flto_EQ); 625 Opts.EmitSummaryIndex = A && A->containsValue("thin"); 626 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { 627 if (IK != IK_LLVM_IR) 628 Diags.Report(diag::err_drv_argument_only_allowed_with) 629 << A->getAsString(Args) << "-x ir"; 630 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); 631 } 632 633 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); 634 635 Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive); 636 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); 637 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); 638 639 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 640 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 641 642 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 643 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 644 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 645 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 646 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file); 647 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file); 648 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 649 Opts.CoverageNoFunctionNamesInData = 650 Args.hasArg(OPT_coverage_no_function_names_in_data); 651 Opts.CoverageExitBlockBeforeBody = 652 Args.hasArg(OPT_coverage_exit_block_before_body); 653 if (Args.hasArg(OPT_coverage_version_EQ)) { 654 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 655 if (CoverageVersion.size() != 4) { 656 Diags.Report(diag::err_drv_invalid_value) 657 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 658 << CoverageVersion; 659 } else { 660 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 661 } 662 } 663 } 664 // Handle -fembed-bitcode option. 665 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) { 666 StringRef Name = A->getValue(); 667 unsigned Model = llvm::StringSwitch<unsigned>(Name) 668 .Case("off", CodeGenOptions::Embed_Off) 669 .Case("all", CodeGenOptions::Embed_All) 670 .Case("bitcode", CodeGenOptions::Embed_Bitcode) 671 .Case("marker", CodeGenOptions::Embed_Marker) 672 .Default(~0U); 673 if (Model == ~0U) { 674 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 675 Success = false; 676 } else 677 Opts.setEmbedBitcode( 678 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model)); 679 } 680 // FIXME: For backend options that are not yet recorded as function 681 // attributes in the IR, keep track of them so we can embed them in a 682 // separate data section and use them when building the bitcode. 683 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) { 684 for (const auto &A : Args) { 685 // Do not encode output and input. 686 if (A->getOption().getID() == options::OPT_o || 687 A->getOption().getID() == options::OPT_INPUT || 688 A->getOption().getID() == options::OPT_x || 689 A->getOption().getID() == options::OPT_fembed_bitcode || 690 (A->getOption().getGroup().isValid() && 691 A->getOption().getGroup().getID() == options::OPT_W_Group)) 692 continue; 693 ArgStringList ASL; 694 A->render(Args, ASL); 695 for (const auto &arg : ASL) { 696 StringRef ArgStr(arg); 697 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end()); 698 // using \00 to seperate each commandline options. 699 Opts.CmdArgs.push_back('\0'); 700 } 701 } 702 } 703 704 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 705 Opts.XRayInstrumentFunctions = Args.hasArg(OPT_fxray_instrument); 706 Opts.XRayInstructionThreshold = 707 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_, 200, Diags); 708 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 709 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 710 Opts.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections); 711 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations); 712 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 713 for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { 714 unsigned LinkFlags = llvm::Linker::Flags::None; 715 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) 716 LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded | 717 llvm::Linker::Flags::InternalizeLinkedSymbols; 718 Opts.LinkBitcodeFiles.push_back(std::make_pair(LinkFlags, A->getValue())); 719 } 720 Opts.SanitizeCoverageType = 721 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); 722 Opts.SanitizeCoverageIndirectCalls = 723 Args.hasArg(OPT_fsanitize_coverage_indirect_calls); 724 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); 725 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); 726 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div); 727 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep); 728 Opts.SanitizeCoverage8bitCounters = 729 Args.hasArg(OPT_fsanitize_coverage_8bit_counters); 730 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc); 731 Opts.SanitizeCoverageTracePCGuard = 732 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard); 733 Opts.SanitizeMemoryTrackOrigins = 734 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); 735 Opts.SanitizeMemoryUseAfterDtor = 736 Args.hasArg(OPT_fsanitize_memory_use_after_dtor); 737 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); 738 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats); 739 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope, 740 OPT_fno_sanitize_address_use_after_scope)) { 741 Opts.SanitizeAddressUseAfterScope = 742 A->getOption().getID() == OPT_fsanitize_address_use_after_scope; 743 } 744 Opts.SSPBufferSize = 745 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags); 746 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 747 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 748 StringRef Val = A->getValue(); 749 unsigned StackAlignment = Opts.StackAlignment; 750 Val.getAsInteger(10, StackAlignment); 751 Opts.StackAlignment = StackAlignment; 752 } 753 754 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) { 755 StringRef Val = A->getValue(); 756 unsigned StackProbeSize = Opts.StackProbeSize; 757 Val.getAsInteger(0, StackProbeSize); 758 Opts.StackProbeSize = StackProbeSize; 759 } 760 761 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 762 StringRef Name = A->getValue(); 763 unsigned Method = llvm::StringSwitch<unsigned>(Name) 764 .Case("legacy", CodeGenOptions::Legacy) 765 .Case("non-legacy", CodeGenOptions::NonLegacy) 766 .Case("mixed", CodeGenOptions::Mixed) 767 .Default(~0U); 768 if (Method == ~0U) { 769 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 770 Success = false; 771 } else { 772 Opts.setObjCDispatchMethod( 773 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 774 } 775 } 776 777 Opts.EmulatedTLS = 778 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); 779 780 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 781 StringRef Name = A->getValue(); 782 unsigned Model = llvm::StringSwitch<unsigned>(Name) 783 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 784 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 785 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 786 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 787 .Default(~0U); 788 if (Model == ~0U) { 789 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 790 Success = false; 791 } else { 792 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 793 } 794 } 795 796 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 797 StringRef Val = A->getValue(); 798 if (Val == "fast") 799 Opts.setFPContractMode(CodeGenOptions::FPC_Fast); 800 else if (Val == "on") 801 Opts.setFPContractMode(CodeGenOptions::FPC_On); 802 else if (Val == "off") 803 Opts.setFPContractMode(CodeGenOptions::FPC_Off); 804 else 805 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 806 } 807 808 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) { 809 StringRef Val = A->getValue(); 810 if (Val == "ieee") 811 Opts.FPDenormalMode = "ieee"; 812 else if (Val == "preserve-sign") 813 Opts.FPDenormalMode = "preserve-sign"; 814 else if (Val == "positive-zero") 815 Opts.FPDenormalMode = "positive-zero"; 816 else 817 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 818 } 819 820 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { 821 if (A->getOption().matches(OPT_fpcc_struct_return)) { 822 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); 823 } else { 824 assert(A->getOption().matches(OPT_freg_struct_return)); 825 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); 826 } 827 } 828 829 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); 830 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option); 831 bool NeedLocTracking = false; 832 833 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file); 834 if (!Opts.OptRecordFile.empty()) 835 NeedLocTracking = true; 836 837 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { 838 Opts.OptimizationRemarkPattern = 839 GenerateOptimizationRemarkRegex(Diags, Args, A); 840 NeedLocTracking = true; 841 } 842 843 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { 844 Opts.OptimizationRemarkMissedPattern = 845 GenerateOptimizationRemarkRegex(Diags, Args, A); 846 NeedLocTracking = true; 847 } 848 849 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { 850 Opts.OptimizationRemarkAnalysisPattern = 851 GenerateOptimizationRemarkRegex(Diags, Args, A); 852 NeedLocTracking = true; 853 } 854 855 Opts.DiagnosticsWithHotness = 856 Args.hasArg(options::OPT_fdiagnostics_show_hotness); 857 if (Opts.DiagnosticsWithHotness && 858 Opts.getProfileUse() == CodeGenOptions::ProfileNone) 859 Diags.Report(diag::warn_drv_fdiagnostics_show_hotness_requires_pgo); 860 861 // If the user requested to use a sample profile for PGO, then the 862 // backend will need to track source location information so the profile 863 // can be incorporated into the IR. 864 if (!Opts.SampleProfileFile.empty()) 865 NeedLocTracking = true; 866 867 // If the user requested a flag that requires source locations available in 868 // the backend, make sure that the backend tracks source location information. 869 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo) 870 Opts.setDebugInfo(codegenoptions::LocTrackingOnly); 871 872 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); 873 874 // Parse -fsanitize-recover= arguments. 875 // FIXME: Report unrecoverable sanitizers incorrectly specified here. 876 parseSanitizerKinds("-fsanitize-recover=", 877 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, 878 Opts.SanitizeRecover); 879 parseSanitizerKinds("-fsanitize-trap=", 880 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, 881 Opts.SanitizeTrap); 882 883 Opts.CudaGpuBinaryFileNames = 884 Args.getAllArgValues(OPT_fcuda_include_gpubinary); 885 886 Opts.Backchain = Args.hasArg(OPT_mbackchain); 887 888 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue( 889 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags); 890 891 return Success; 892 } 893 894 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 895 ArgList &Args) { 896 using namespace options; 897 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 898 Opts.Targets = Args.getAllArgValues(OPT_MT); 899 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 900 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps); 901 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 902 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 903 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 904 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 905 Opts.PrintShowIncludes = Args.hasArg(OPT_show_includes); 906 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 907 Opts.ModuleDependencyOutputDir = 908 Args.getLastArgValue(OPT_module_dependency_dir); 909 if (Args.hasArg(OPT_MV)) 910 Opts.OutputFormat = DependencyOutputFormat::NMake; 911 // Add sanitizer blacklists as extra dependencies. 912 // They won't be discovered by the regular preprocessor, so 913 // we let make / ninja to know about this implicit dependency. 914 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); 915 auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 916 Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(), 917 ModuleFiles.end()); 918 } 919 920 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) { 921 // Color diagnostics default to auto ("on" if terminal supports) in the driver 922 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color. 923 // Support both clang's -f[no-]color-diagnostics and gcc's 924 // -f[no-]diagnostics-colors[=never|always|auto]. 925 enum { 926 Colors_On, 927 Colors_Off, 928 Colors_Auto 929 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off; 930 for (Arg *A : Args) { 931 const Option &O = A->getOption(); 932 if (O.matches(options::OPT_fcolor_diagnostics) || 933 O.matches(options::OPT_fdiagnostics_color)) { 934 ShowColors = Colors_On; 935 } else if (O.matches(options::OPT_fno_color_diagnostics) || 936 O.matches(options::OPT_fno_diagnostics_color)) { 937 ShowColors = Colors_Off; 938 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) { 939 StringRef Value(A->getValue()); 940 if (Value == "always") 941 ShowColors = Colors_On; 942 else if (Value == "never") 943 ShowColors = Colors_Off; 944 else if (Value == "auto") 945 ShowColors = Colors_Auto; 946 } 947 } 948 return ShowColors == Colors_On || 949 (ShowColors == Colors_Auto && 950 llvm::sys::Process::StandardErrHasColors()); 951 } 952 953 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 954 DiagnosticsEngine *Diags, 955 bool DefaultDiagColor, bool DefaultShowOpt) { 956 using namespace options; 957 bool Success = true; 958 959 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 960 if (Arg *A = 961 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) 962 Opts.DiagnosticSerializationFile = A->getValue(); 963 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 964 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 965 Opts.Pedantic = Args.hasArg(OPT_pedantic); 966 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 967 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 968 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor); 969 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 970 OPT_fno_show_column, 971 /*Default=*/true); 972 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 973 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 974 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths); 975 Opts.ShowOptionNames = 976 Args.hasFlag(OPT_fdiagnostics_show_option, 977 OPT_fno_diagnostics_show_option, DefaultShowOpt); 978 979 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); 980 981 // Default behavior is to not to show note include stacks. 982 Opts.ShowNoteIncludeStack = false; 983 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 984 OPT_fno_diagnostics_show_note_include_stack)) 985 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 986 Opts.ShowNoteIncludeStack = true; 987 988 StringRef ShowOverloads = 989 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 990 if (ShowOverloads == "best") 991 Opts.setShowOverloads(Ovl_Best); 992 else if (ShowOverloads == "all") 993 Opts.setShowOverloads(Ovl_All); 994 else { 995 Success = false; 996 if (Diags) 997 Diags->Report(diag::err_drv_invalid_value) 998 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 999 << ShowOverloads; 1000 } 1001 1002 StringRef ShowCategory = 1003 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 1004 if (ShowCategory == "none") 1005 Opts.ShowCategories = 0; 1006 else if (ShowCategory == "id") 1007 Opts.ShowCategories = 1; 1008 else if (ShowCategory == "name") 1009 Opts.ShowCategories = 2; 1010 else { 1011 Success = false; 1012 if (Diags) 1013 Diags->Report(diag::err_drv_invalid_value) 1014 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 1015 << ShowCategory; 1016 } 1017 1018 StringRef Format = 1019 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 1020 if (Format == "clang") 1021 Opts.setFormat(DiagnosticOptions::Clang); 1022 else if (Format == "msvc") 1023 Opts.setFormat(DiagnosticOptions::MSVC); 1024 else if (Format == "msvc-fallback") { 1025 Opts.setFormat(DiagnosticOptions::MSVC); 1026 Opts.CLFallbackMode = true; 1027 } else if (Format == "vi") 1028 Opts.setFormat(DiagnosticOptions::Vi); 1029 else { 1030 Success = false; 1031 if (Diags) 1032 Diags->Report(diag::err_drv_invalid_value) 1033 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 1034 << Format; 1035 } 1036 1037 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 1038 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 1039 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 1040 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 1041 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; 1042 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", 1043 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), 1044 Diags, DiagMask); 1045 if (Args.hasArg(OPT_verify_ignore_unexpected)) 1046 DiagMask = DiagnosticLevelMask::All; 1047 Opts.setVerifyIgnoreUnexpected(DiagMask); 1048 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 1049 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 1050 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); 1051 Opts.MacroBacktraceLimit = 1052 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, 1053 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 1054 Opts.TemplateBacktraceLimit = getLastArgIntValue( 1055 Args, OPT_ftemplate_backtrace_limit, 1056 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); 1057 Opts.ConstexprBacktraceLimit = getLastArgIntValue( 1058 Args, OPT_fconstexpr_backtrace_limit, 1059 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); 1060 Opts.SpellCheckingLimit = getLastArgIntValue( 1061 Args, OPT_fspell_checking_limit, 1062 DiagnosticOptions::DefaultSpellCheckingLimit, Diags); 1063 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop, 1064 DiagnosticOptions::DefaultTabStop, Diags); 1065 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 1066 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 1067 if (Diags) 1068 Diags->Report(diag::warn_ignoring_ftabstop_value) 1069 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 1070 } 1071 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); 1072 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); 1073 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); 1074 1075 return Success; 1076 } 1077 1078 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 1079 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 1080 } 1081 1082 /// Parse the argument to the -ftest-module-file-extension 1083 /// command-line argument. 1084 /// 1085 /// \returns true on error, false on success. 1086 static bool parseTestModuleFileExtensionArg(StringRef Arg, 1087 std::string &BlockName, 1088 unsigned &MajorVersion, 1089 unsigned &MinorVersion, 1090 bool &Hashed, 1091 std::string &UserInfo) { 1092 SmallVector<StringRef, 5> Args; 1093 Arg.split(Args, ':', 5); 1094 if (Args.size() < 5) 1095 return true; 1096 1097 BlockName = Args[0]; 1098 if (Args[1].getAsInteger(10, MajorVersion)) return true; 1099 if (Args[2].getAsInteger(10, MinorVersion)) return true; 1100 if (Args[3].getAsInteger(2, Hashed)) return true; 1101 if (Args.size() > 4) 1102 UserInfo = Args[4]; 1103 return false; 1104 } 1105 1106 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 1107 DiagnosticsEngine &Diags, 1108 bool &IsHeaderFile) { 1109 using namespace options; 1110 Opts.ProgramAction = frontend::ParseSyntaxOnly; 1111 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 1112 switch (A->getOption().getID()) { 1113 default: 1114 llvm_unreachable("Invalid option in group!"); 1115 case OPT_ast_list: 1116 Opts.ProgramAction = frontend::ASTDeclList; break; 1117 case OPT_ast_dump: 1118 case OPT_ast_dump_lookups: 1119 Opts.ProgramAction = frontend::ASTDump; break; 1120 case OPT_ast_print: 1121 Opts.ProgramAction = frontend::ASTPrint; break; 1122 case OPT_ast_view: 1123 Opts.ProgramAction = frontend::ASTView; break; 1124 case OPT_dump_raw_tokens: 1125 Opts.ProgramAction = frontend::DumpRawTokens; break; 1126 case OPT_dump_tokens: 1127 Opts.ProgramAction = frontend::DumpTokens; break; 1128 case OPT_S: 1129 Opts.ProgramAction = frontend::EmitAssembly; break; 1130 case OPT_emit_llvm_bc: 1131 Opts.ProgramAction = frontend::EmitBC; break; 1132 case OPT_emit_html: 1133 Opts.ProgramAction = frontend::EmitHTML; break; 1134 case OPT_emit_llvm: 1135 Opts.ProgramAction = frontend::EmitLLVM; break; 1136 case OPT_emit_llvm_only: 1137 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 1138 case OPT_emit_codegen_only: 1139 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 1140 case OPT_emit_obj: 1141 Opts.ProgramAction = frontend::EmitObj; break; 1142 case OPT_fixit_EQ: 1143 Opts.FixItSuffix = A->getValue(); 1144 // fall-through! 1145 case OPT_fixit: 1146 Opts.ProgramAction = frontend::FixIt; break; 1147 case OPT_emit_module: 1148 Opts.ProgramAction = frontend::GenerateModule; break; 1149 case OPT_emit_module_interface: 1150 Opts.ProgramAction = frontend::GenerateModuleInterface; break; 1151 case OPT_emit_pch: 1152 Opts.ProgramAction = frontend::GeneratePCH; break; 1153 case OPT_emit_pth: 1154 Opts.ProgramAction = frontend::GeneratePTH; break; 1155 case OPT_init_only: 1156 Opts.ProgramAction = frontend::InitOnly; break; 1157 case OPT_fsyntax_only: 1158 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 1159 case OPT_module_file_info: 1160 Opts.ProgramAction = frontend::ModuleFileInfo; break; 1161 case OPT_verify_pch: 1162 Opts.ProgramAction = frontend::VerifyPCH; break; 1163 case OPT_print_decl_contexts: 1164 Opts.ProgramAction = frontend::PrintDeclContext; break; 1165 case OPT_print_preamble: 1166 Opts.ProgramAction = frontend::PrintPreamble; break; 1167 case OPT_E: 1168 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 1169 case OPT_rewrite_macros: 1170 Opts.ProgramAction = frontend::RewriteMacros; break; 1171 case OPT_rewrite_objc: 1172 Opts.ProgramAction = frontend::RewriteObjC; break; 1173 case OPT_rewrite_test: 1174 Opts.ProgramAction = frontend::RewriteTest; break; 1175 case OPT_analyze: 1176 Opts.ProgramAction = frontend::RunAnalysis; break; 1177 case OPT_migrate: 1178 Opts.ProgramAction = frontend::MigrateSource; break; 1179 case OPT_Eonly: 1180 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 1181 } 1182 } 1183 1184 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 1185 Opts.Plugins.emplace_back(A->getValue(0)); 1186 Opts.ProgramAction = frontend::PluginAction; 1187 Opts.ActionName = A->getValue(); 1188 } 1189 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 1190 for (const Arg *AA : Args.filtered(OPT_plugin_arg)) 1191 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1)); 1192 1193 for (const std::string &Arg : 1194 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { 1195 std::string BlockName; 1196 unsigned MajorVersion; 1197 unsigned MinorVersion; 1198 bool Hashed; 1199 std::string UserInfo; 1200 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, 1201 MinorVersion, Hashed, UserInfo)) { 1202 Diags.Report(diag::err_test_module_file_extension_format) << Arg; 1203 1204 continue; 1205 } 1206 1207 // Add the testing module file extension. 1208 Opts.ModuleFileExtensions.push_back( 1209 new TestModuleFileExtension(BlockName, MajorVersion, MinorVersion, 1210 Hashed, UserInfo)); 1211 } 1212 1213 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 1214 Opts.CodeCompletionAt = 1215 ParsedSourceLocation::FromString(A->getValue()); 1216 if (Opts.CodeCompletionAt.FileName.empty()) 1217 Diags.Report(diag::err_drv_invalid_value) 1218 << A->getAsString(Args) << A->getValue(); 1219 } 1220 Opts.DisableFree = Args.hasArg(OPT_disable_free); 1221 1222 Opts.OutputFile = Args.getLastArgValue(OPT_o); 1223 Opts.Plugins = Args.getAllArgValues(OPT_load); 1224 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 1225 Opts.ShowHelp = Args.hasArg(OPT_help); 1226 Opts.ShowStats = Args.hasArg(OPT_print_stats); 1227 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 1228 Opts.ShowVersion = Args.hasArg(OPT_version); 1229 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 1230 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 1231 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 1232 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 1233 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 1234 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 1235 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump); 1236 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 1237 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); 1238 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 1239 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 1240 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); 1241 Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); 1242 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); 1243 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 1244 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp); 1245 1246 Opts.CodeCompleteOpts.IncludeMacros 1247 = Args.hasArg(OPT_code_completion_macros); 1248 Opts.CodeCompleteOpts.IncludeCodePatterns 1249 = Args.hasArg(OPT_code_completion_patterns); 1250 Opts.CodeCompleteOpts.IncludeGlobals 1251 = !Args.hasArg(OPT_no_code_completion_globals); 1252 Opts.CodeCompleteOpts.IncludeBriefComments 1253 = Args.hasArg(OPT_code_completion_brief_comments); 1254 1255 Opts.OverrideRecordLayoutsFile 1256 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 1257 Opts.AuxTriple = 1258 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 1259 Opts.FindPchSource = Args.getLastArgValue(OPT_find_pch_source_EQ); 1260 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file); 1261 1262 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 1263 OPT_arcmt_modify, 1264 OPT_arcmt_migrate)) { 1265 switch (A->getOption().getID()) { 1266 default: 1267 llvm_unreachable("missed a case"); 1268 case OPT_arcmt_check: 1269 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 1270 break; 1271 case OPT_arcmt_modify: 1272 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 1273 break; 1274 case OPT_arcmt_migrate: 1275 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 1276 break; 1277 } 1278 } 1279 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 1280 Opts.ARCMTMigrateReportOut 1281 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 1282 Opts.ARCMTMigrateEmitARCErrors 1283 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 1284 1285 if (Args.hasArg(OPT_objcmt_migrate_literals)) 1286 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 1287 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 1288 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 1289 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) 1290 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; 1291 if (Args.hasArg(OPT_objcmt_migrate_property)) 1292 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; 1293 if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) 1294 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; 1295 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) 1296 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; 1297 if (Args.hasArg(OPT_objcmt_migrate_annotation)) 1298 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; 1299 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) 1300 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; 1301 if (Args.hasArg(OPT_objcmt_migrate_instancetype)) 1302 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; 1303 if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) 1304 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; 1305 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) 1306 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; 1307 if (Args.hasArg(OPT_objcmt_atomic_property)) 1308 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; 1309 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) 1310 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; 1311 if (Args.hasArg(OPT_objcmt_migrate_designated_init)) 1312 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; 1313 if (Args.hasArg(OPT_objcmt_migrate_all)) 1314 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; 1315 1316 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 1317 1318 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 1319 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 1320 Diags.Report(diag::err_drv_argument_not_allowed_with) 1321 << "ARC migration" << "ObjC migration"; 1322 } 1323 1324 InputKind DashX = IK_None; 1325 if (const Arg *A = Args.getLastArg(OPT_x)) { 1326 DashX = llvm::StringSwitch<InputKind>(A->getValue()) 1327 .Case("c", IK_C) 1328 .Case("cl", IK_OpenCL) 1329 .Case("cuda", IK_CUDA) 1330 .Case("c++", IK_CXX) 1331 .Case("c++-module", IK_CXX) 1332 .Case("objective-c", IK_ObjC) 1333 .Case("objective-c++", IK_ObjCXX) 1334 .Case("cpp-output", IK_PreprocessedC) 1335 .Case("assembler-with-cpp", IK_Asm) 1336 .Case("c++-cpp-output", IK_PreprocessedCXX) 1337 .Case("c++-module-cpp-output", IK_PreprocessedCXX) 1338 .Case("cuda-cpp-output", IK_PreprocessedCuda) 1339 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 1340 .Case("objc-cpp-output", IK_PreprocessedObjC) 1341 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 1342 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 1343 .Case("c-header", IK_C) 1344 .Case("cl-header", IK_OpenCL) 1345 .Case("objective-c-header", IK_ObjC) 1346 .Case("c++-header", IK_CXX) 1347 .Case("objective-c++-header", IK_ObjCXX) 1348 .Cases("ast", "pcm", IK_AST) 1349 .Case("ir", IK_LLVM_IR) 1350 .Case("renderscript", IK_RenderScript) 1351 .Default(IK_None); 1352 if (DashX == IK_None) 1353 Diags.Report(diag::err_drv_invalid_value) 1354 << A->getAsString(Args) << A->getValue(); 1355 IsHeaderFile = llvm::StringSwitch<bool>(A->getValue()) 1356 .Case("c-header", true) 1357 .Case("cl-header", true) 1358 .Case("objective-c-header", true) 1359 .Case("c++-header", true) 1360 .Case("objective-c++-header", true) 1361 .Default(false); 1362 } 1363 1364 // '-' is the default input if none is given. 1365 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 1366 Opts.Inputs.clear(); 1367 if (Inputs.empty()) 1368 Inputs.push_back("-"); 1369 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 1370 InputKind IK = DashX; 1371 if (IK == IK_None) { 1372 IK = FrontendOptions::getInputKindForExtension( 1373 StringRef(Inputs[i]).rsplit('.').second); 1374 // FIXME: Remove this hack. 1375 if (i == 0) 1376 DashX = IK; 1377 } 1378 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK); 1379 } 1380 1381 return DashX; 1382 } 1383 1384 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 1385 void *MainAddr) { 1386 std::string ClangExecutable = 1387 llvm::sys::fs::getMainExecutable(Argv0, MainAddr); 1388 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); 1389 1390 // Compute the path to the resource directory. 1391 StringRef ClangResourceDir(CLANG_RESOURCE_DIR); 1392 SmallString<128> P(Dir); 1393 if (ClangResourceDir != "") 1394 llvm::sys::path::append(P, ClangResourceDir); 1395 else 1396 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, 1397 "clang", CLANG_VERSION_STRING); 1398 1399 return P.str(); 1400 } 1401 1402 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 1403 using namespace options; 1404 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 1405 Opts.Verbose = Args.hasArg(OPT_v); 1406 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 1407 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 1408 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 1409 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 1410 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 1411 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 1412 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path); 1413 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); 1414 for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path)) 1415 Opts.AddPrebuiltModulePath(A->getValue()); 1416 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 1417 Opts.ModulesValidateDiagnosticOptions = 1418 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation); 1419 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); 1420 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); 1421 Opts.ModuleCachePruneInterval = 1422 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); 1423 Opts.ModuleCachePruneAfter = 1424 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); 1425 Opts.ModulesValidateOncePerBuildSession = 1426 Args.hasArg(OPT_fmodules_validate_once_per_build_session); 1427 Opts.BuildSessionTimestamp = 1428 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); 1429 Opts.ModulesValidateSystemHeaders = 1430 Args.hasArg(OPT_fmodules_validate_system_headers); 1431 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) 1432 Opts.ModuleFormat = A->getValue(); 1433 1434 for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { 1435 StringRef MacroDef = A->getValue(); 1436 Opts.ModulesIgnoreMacros.insert( 1437 llvm::CachedHashString(MacroDef.split('=').first)); 1438 } 1439 1440 // Add -I..., -F..., and -index-header-map options in order. 1441 bool IsIndexHeaderMap = false; 1442 bool IsSysrootSpecified = 1443 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot); 1444 for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { 1445 if (A->getOption().matches(OPT_index_header_map)) { 1446 // -index-header-map applies to the next -I or -F. 1447 IsIndexHeaderMap = true; 1448 continue; 1449 } 1450 1451 frontend::IncludeDirGroup Group = 1452 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled; 1453 1454 bool IsFramework = A->getOption().matches(OPT_F); 1455 std::string Path = A->getValue(); 1456 1457 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') { 1458 SmallString<32> Buffer; 1459 llvm::sys::path::append(Buffer, Opts.Sysroot, 1460 llvm::StringRef(A->getValue()).substr(1)); 1461 Path = Buffer.str(); 1462 } 1463 1464 Opts.AddPath(Path, Group, IsFramework, 1465 /*IgnoreSysroot*/ true); 1466 IsIndexHeaderMap = false; 1467 } 1468 1469 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 1470 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 1471 for (const Arg *A : 1472 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 1473 if (A->getOption().matches(OPT_iprefix)) 1474 Prefix = A->getValue(); 1475 else if (A->getOption().matches(OPT_iwithprefix)) 1476 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); 1477 else 1478 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); 1479 } 1480 1481 for (const Arg *A : Args.filtered(OPT_idirafter)) 1482 Opts.AddPath(A->getValue(), frontend::After, false, true); 1483 for (const Arg *A : Args.filtered(OPT_iquote)) 1484 Opts.AddPath(A->getValue(), frontend::Quoted, false, true); 1485 for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) 1486 Opts.AddPath(A->getValue(), frontend::System, false, 1487 !A->getOption().matches(OPT_iwithsysroot)); 1488 for (const Arg *A : Args.filtered(OPT_iframework)) 1489 Opts.AddPath(A->getValue(), frontend::System, true, true); 1490 1491 // Add the paths for the various language specific isystem flags. 1492 for (const Arg *A : Args.filtered(OPT_c_isystem)) 1493 Opts.AddPath(A->getValue(), frontend::CSystem, false, true); 1494 for (const Arg *A : Args.filtered(OPT_cxx_isystem)) 1495 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); 1496 for (const Arg *A : Args.filtered(OPT_objc_isystem)) 1497 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); 1498 for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) 1499 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); 1500 1501 // Add the internal paths from a driver that detects standard include paths. 1502 for (const Arg *A : 1503 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { 1504 frontend::IncludeDirGroup Group = frontend::System; 1505 if (A->getOption().matches(OPT_internal_externc_isystem)) 1506 Group = frontend::ExternCSystem; 1507 Opts.AddPath(A->getValue(), Group, false, true); 1508 } 1509 1510 // Add the path prefixes which are implicitly treated as being system headers. 1511 for (const Arg *A : 1512 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) 1513 Opts.AddSystemHeaderPrefix( 1514 A->getValue(), A->getOption().matches(OPT_system_header_prefix)); 1515 1516 for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) 1517 Opts.AddVFSOverlayFile(A->getValue()); 1518 } 1519 1520 static bool isOpenCL(LangStandard::Kind LangStd) { 1521 return LangStd == LangStandard::lang_opencl || 1522 LangStd == LangStandard::lang_opencl11 || 1523 LangStd == LangStandard::lang_opencl12 || 1524 LangStd == LangStandard::lang_opencl20; 1525 } 1526 1527 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 1528 const llvm::Triple &T, 1529 PreprocessorOptions &PPOpts, 1530 LangStandard::Kind LangStd) { 1531 // Set some properties which depend solely on the input kind; it would be nice 1532 // to move these to the language standard, and have the driver resolve the 1533 // input kind + language standard. 1534 if (IK == IK_Asm) { 1535 Opts.AsmPreprocessor = 1; 1536 } else if (IK == IK_ObjC || 1537 IK == IK_ObjCXX || 1538 IK == IK_PreprocessedObjC || 1539 IK == IK_PreprocessedObjCXX) { 1540 Opts.ObjC1 = Opts.ObjC2 = 1; 1541 } 1542 1543 if (LangStd == LangStandard::lang_unspecified) { 1544 // Based on the base language, pick one. 1545 switch (IK) { 1546 case IK_None: 1547 case IK_AST: 1548 case IK_LLVM_IR: 1549 llvm_unreachable("Invalid input kind!"); 1550 case IK_OpenCL: 1551 LangStd = LangStandard::lang_opencl; 1552 break; 1553 case IK_CUDA: 1554 case IK_PreprocessedCuda: 1555 LangStd = LangStandard::lang_cuda; 1556 break; 1557 case IK_Asm: 1558 case IK_C: 1559 case IK_PreprocessedC: 1560 // The PS4 uses C99 as the default C standard. 1561 if (T.isPS4()) 1562 LangStd = LangStandard::lang_gnu99; 1563 else 1564 LangStd = LangStandard::lang_gnu11; 1565 break; 1566 case IK_ObjC: 1567 case IK_PreprocessedObjC: 1568 LangStd = LangStandard::lang_gnu11; 1569 break; 1570 case IK_CXX: 1571 case IK_PreprocessedCXX: 1572 case IK_ObjCXX: 1573 case IK_PreprocessedObjCXX: 1574 LangStd = LangStandard::lang_gnucxx98; 1575 break; 1576 case IK_RenderScript: 1577 LangStd = LangStandard::lang_c99; 1578 break; 1579 } 1580 } 1581 1582 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1583 Opts.LineComment = Std.hasLineComments(); 1584 Opts.C99 = Std.isC99(); 1585 Opts.C11 = Std.isC11(); 1586 Opts.CPlusPlus = Std.isCPlusPlus(); 1587 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 1588 Opts.CPlusPlus14 = Std.isCPlusPlus14(); 1589 Opts.CPlusPlus1z = Std.isCPlusPlus1z(); 1590 Opts.Digraphs = Std.hasDigraphs(); 1591 Opts.GNUMode = Std.isGNUMode(); 1592 Opts.GNUInline = Std.isC89(); 1593 Opts.HexFloats = Std.hasHexFloats(); 1594 Opts.ImplicitInt = Std.hasImplicitInt(); 1595 1596 // Set OpenCL Version. 1597 Opts.OpenCL = isOpenCL(LangStd) || IK == IK_OpenCL; 1598 if (LangStd == LangStandard::lang_opencl) 1599 Opts.OpenCLVersion = 100; 1600 else if (LangStd == LangStandard::lang_opencl11) 1601 Opts.OpenCLVersion = 110; 1602 else if (LangStd == LangStandard::lang_opencl12) 1603 Opts.OpenCLVersion = 120; 1604 else if (LangStd == LangStandard::lang_opencl20) 1605 Opts.OpenCLVersion = 200; 1606 1607 // OpenCL has some additional defaults. 1608 if (Opts.OpenCL) { 1609 Opts.AltiVec = 0; 1610 Opts.ZVector = 0; 1611 Opts.CXXOperatorNames = 1; 1612 Opts.LaxVectorConversions = 0; 1613 Opts.DefaultFPContract = 1; 1614 Opts.NativeHalfType = 1; 1615 Opts.NativeHalfArgsAndReturns = 1; 1616 // Include default header file for OpenCL. 1617 if (Opts.IncludeDefaultHeader) { 1618 PPOpts.Includes.push_back("opencl-c.h"); 1619 } 1620 } 1621 1622 Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda || 1623 LangStd == LangStandard::lang_cuda; 1624 1625 Opts.RenderScript = IK == IK_RenderScript; 1626 if (Opts.RenderScript) { 1627 Opts.NativeHalfType = 1; 1628 Opts.NativeHalfArgsAndReturns = 1; 1629 } 1630 1631 // OpenCL and C++ both have bool, true, false keywords. 1632 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1633 1634 // OpenCL has half keyword 1635 Opts.Half = Opts.OpenCL; 1636 1637 // C++ has wchar_t keyword. 1638 Opts.WChar = Opts.CPlusPlus; 1639 1640 Opts.GNUKeywords = Opts.GNUMode; 1641 Opts.CXXOperatorNames = Opts.CPlusPlus; 1642 1643 Opts.AlignedAllocation = Opts.CPlusPlus1z; 1644 1645 Opts.DollarIdents = !Opts.AsmPreprocessor; 1646 } 1647 1648 /// Attempt to parse a visibility value out of the given argument. 1649 static Visibility parseVisibility(Arg *arg, ArgList &args, 1650 DiagnosticsEngine &diags) { 1651 StringRef value = arg->getValue(); 1652 if (value == "default") { 1653 return DefaultVisibility; 1654 } else if (value == "hidden" || value == "internal") { 1655 return HiddenVisibility; 1656 } else if (value == "protected") { 1657 // FIXME: diagnose if target does not support protected visibility 1658 return ProtectedVisibility; 1659 } 1660 1661 diags.Report(diag::err_drv_invalid_value) 1662 << arg->getAsString(args) << value; 1663 return DefaultVisibility; 1664 } 1665 1666 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1667 const TargetOptions &TargetOpts, 1668 PreprocessorOptions &PPOpts, 1669 DiagnosticsEngine &Diags) { 1670 // FIXME: Cleanup per-file based stuff. 1671 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1672 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1673 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1674 #define LANGSTANDARD(id, name, desc, features) \ 1675 .Case(name, LangStandard::lang_##id) 1676 #define LANGSTANDARD_ALIAS(id, alias) \ 1677 .Case(alias, LangStandard::lang_##id) 1678 #include "clang/Frontend/LangStandards.def" 1679 .Default(LangStandard::lang_unspecified); 1680 if (LangStd == LangStandard::lang_unspecified) 1681 Diags.Report(diag::err_drv_invalid_value) 1682 << A->getAsString(Args) << A->getValue(); 1683 else { 1684 // Valid standard, check to make sure language and standard are 1685 // compatible. 1686 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1687 switch (IK) { 1688 case IK_C: 1689 case IK_ObjC: 1690 case IK_PreprocessedC: 1691 case IK_PreprocessedObjC: 1692 if (!(Std.isC89() || Std.isC99())) 1693 Diags.Report(diag::err_drv_argument_not_allowed_with) 1694 << A->getAsString(Args) << "C/ObjC"; 1695 break; 1696 case IK_CXX: 1697 case IK_ObjCXX: 1698 case IK_PreprocessedCXX: 1699 case IK_PreprocessedObjCXX: 1700 if (!Std.isCPlusPlus()) 1701 Diags.Report(diag::err_drv_argument_not_allowed_with) 1702 << A->getAsString(Args) << "C++/ObjC++"; 1703 break; 1704 case IK_OpenCL: 1705 if (!isOpenCL(LangStd)) 1706 Diags.Report(diag::err_drv_argument_not_allowed_with) 1707 << A->getAsString(Args) << "OpenCL"; 1708 break; 1709 case IK_CUDA: 1710 case IK_PreprocessedCuda: 1711 if (!Std.isCPlusPlus()) 1712 Diags.Report(diag::err_drv_argument_not_allowed_with) 1713 << A->getAsString(Args) << "CUDA"; 1714 break; 1715 default: 1716 break; 1717 } 1718 } 1719 } 1720 1721 // -cl-std only applies for OpenCL language standards. 1722 // Override the -std option in this case. 1723 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1724 LangStandard::Kind OpenCLLangStd 1725 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1726 .Cases("cl", "CL", LangStandard::lang_opencl) 1727 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11) 1728 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12) 1729 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20) 1730 .Default(LangStandard::lang_unspecified); 1731 1732 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1733 Diags.Report(diag::err_drv_invalid_value) 1734 << A->getAsString(Args) << A->getValue(); 1735 } 1736 else 1737 LangStd = OpenCLLangStd; 1738 } 1739 1740 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header); 1741 1742 llvm::Triple T(TargetOpts.Triple); 1743 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd); 1744 1745 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0. 1746 // This option should be deprecated for CL > 1.0 because 1747 // this option was added for compatibility with OpenCL 1.0. 1748 if (Args.getLastArg(OPT_cl_strict_aliasing) 1749 && Opts.OpenCLVersion > 100) { 1750 std::string VerSpec = llvm::to_string(Opts.OpenCLVersion / 100) + 1751 std::string(".") + 1752 llvm::to_string((Opts.OpenCLVersion % 100) / 10); 1753 Diags.Report(diag::warn_option_invalid_ocl_version) 1754 << VerSpec << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args); 1755 } 1756 1757 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1758 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1759 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1760 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1761 // name, as it doesn't seem a useful distinction. 1762 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1763 Opts.GNUKeywords); 1764 1765 if (Args.hasArg(OPT_fno_operator_names)) 1766 Opts.CXXOperatorNames = 0; 1767 1768 if (Args.hasArg(OPT_fcuda_is_device)) 1769 Opts.CUDAIsDevice = 1; 1770 1771 if (Args.hasArg(OPT_fcuda_allow_variadic_functions)) 1772 Opts.CUDAAllowVariadicFunctions = 1; 1773 1774 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr)) 1775 Opts.CUDAHostDeviceConstexpr = 0; 1776 1777 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_flush_denormals_to_zero)) 1778 Opts.CUDADeviceFlushDenormalsToZero = 1; 1779 1780 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals)) 1781 Opts.CUDADeviceApproxTranscendentals = 1; 1782 1783 if (Opts.ObjC1) { 1784 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1785 StringRef value = arg->getValue(); 1786 if (Opts.ObjCRuntime.tryParse(value)) 1787 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1788 } 1789 1790 if (Args.hasArg(OPT_fobjc_gc_only)) 1791 Opts.setGC(LangOptions::GCOnly); 1792 else if (Args.hasArg(OPT_fobjc_gc)) 1793 Opts.setGC(LangOptions::HybridGC); 1794 else if (Args.hasArg(OPT_fobjc_arc)) { 1795 Opts.ObjCAutoRefCount = 1; 1796 if (!Opts.ObjCRuntime.allowsARC()) 1797 Diags.Report(diag::err_arc_unsupported_on_runtime); 1798 } 1799 1800 // ObjCWeakRuntime tracks whether the runtime supports __weak, not 1801 // whether the feature is actually enabled. This is predominantly 1802 // determined by -fobjc-runtime, but we allow it to be overridden 1803 // from the command line for testing purposes. 1804 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1805 Opts.ObjCWeakRuntime = 1; 1806 else 1807 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); 1808 1809 // ObjCWeak determines whether __weak is actually enabled. 1810 // Note that we allow -fno-objc-weak to disable this even in ARC mode. 1811 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { 1812 if (!weakArg->getOption().matches(OPT_fobjc_weak)) { 1813 assert(!Opts.ObjCWeak); 1814 } else if (Opts.getGC() != LangOptions::NonGC) { 1815 Diags.Report(diag::err_objc_weak_with_gc); 1816 } else if (!Opts.ObjCWeakRuntime) { 1817 Diags.Report(diag::err_objc_weak_unsupported); 1818 } else { 1819 Opts.ObjCWeak = 1; 1820 } 1821 } else if (Opts.ObjCAutoRefCount) { 1822 Opts.ObjCWeak = Opts.ObjCWeakRuntime; 1823 } 1824 1825 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1826 Opts.ObjCInferRelatedResultType = 0; 1827 1828 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) 1829 Opts.ObjCSubscriptingLegacyRuntime = 1830 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); 1831 } 1832 1833 if (Args.hasArg(OPT_fgnu89_inline)) { 1834 if (Opts.CPlusPlus) 1835 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fgnu89-inline" 1836 << "C++/ObjC++"; 1837 else 1838 Opts.GNUInline = 1; 1839 } 1840 1841 if (Args.hasArg(OPT_fapple_kext)) { 1842 if (!Opts.CPlusPlus) 1843 Diags.Report(diag::warn_c_kext); 1844 else 1845 Opts.AppleKext = 1; 1846 } 1847 1848 if (Args.hasArg(OPT_print_ivar_layout)) 1849 Opts.ObjCGCBitmapPrint = 1; 1850 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1851 Opts.NoConstantCFStrings = 1; 1852 1853 if (Args.hasArg(OPT_faltivec)) 1854 Opts.AltiVec = 1; 1855 1856 if (Args.hasArg(OPT_fzvector)) 1857 Opts.ZVector = 1; 1858 1859 if (Args.hasArg(OPT_pthread)) 1860 Opts.POSIXThreads = 1; 1861 1862 // The value-visibility mode defaults to "default". 1863 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 1864 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 1865 } else { 1866 Opts.setValueVisibilityMode(DefaultVisibility); 1867 } 1868 1869 // The type-visibility mode defaults to the value-visibility mode. 1870 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 1871 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 1872 } else { 1873 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 1874 } 1875 1876 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1877 Opts.InlineVisibilityHidden = 1; 1878 1879 if (Args.hasArg(OPT_ftrapv)) { 1880 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1881 // Set the handler, if one is specified. 1882 Opts.OverflowHandler = 1883 Args.getLastArgValue(OPT_ftrapv_handler); 1884 } 1885 else if (Args.hasArg(OPT_fwrapv)) 1886 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1887 1888 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); 1889 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); 1890 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 1891 Opts.MSCompatibilityVersion = 0; 1892 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { 1893 VersionTuple VT; 1894 if (VT.tryParse(A->getValue())) 1895 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 1896 << A->getValue(); 1897 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + 1898 VT.getMinor().getValueOr(0) * 100000 + 1899 VT.getSubminor().getValueOr(0); 1900 } 1901 1902 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1903 // is specified, or -std is set to a conforming mode. 1904 // Trigraphs are disabled by default in c++1z onwards. 1905 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; 1906 Opts.Trigraphs = 1907 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); 1908 1909 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1910 OPT_fno_dollars_in_identifiers, 1911 Opts.DollarIdents); 1912 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1913 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags); 1914 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1915 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1916 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1917 Opts.ConstStrings); 1918 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1919 Opts.LaxVectorConversions = 0; 1920 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1921 Opts.ThreadsafeStatics = 0; 1922 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1923 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1924 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1925 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1926 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind); 1927 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1928 1929 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti); 1930 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); 1931 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL 1932 && Opts.OpenCLVersion >= 200); 1933 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 1934 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts); 1935 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts); 1936 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS; 1937 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); 1938 Opts.ModulesDeclUse = 1939 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; 1940 Opts.ModulesLocalVisibility = 1941 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS; 1942 Opts.ModulesSearchAll = Opts.Modules && 1943 !Args.hasArg(OPT_fno_modules_search_all) && 1944 Args.hasArg(OPT_fmodules_search_all); 1945 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); 1946 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); 1947 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); 1948 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 1949 Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); 1950 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 1951 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1952 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1953 if (!Opts.NoBuiltin) 1954 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs); 1955 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); 1956 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); 1957 Opts.AlignedAllocation = 1958 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation, 1959 Opts.AlignedAllocation); 1960 Opts.NewAlignOverride = 1961 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags); 1962 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) { 1963 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ); 1964 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args) 1965 << A->getValue(); 1966 Opts.NewAlignOverride = 0; 1967 } 1968 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 1969 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1970 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1971 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1972 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); 1973 Opts.InstantiationDepth = 1974 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags); 1975 Opts.ArrowDepth = 1976 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); 1977 Opts.ConstexprCallDepth = 1978 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); 1979 Opts.ConstexprStepLimit = 1980 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); 1981 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); 1982 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 1983 Opts.NumLargeByValueCopy = 1984 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags); 1985 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 1986 Opts.ObjCConstantStringClass = 1987 Args.getLastArgValue(OPT_fconstant_string_class); 1988 Opts.ObjCDefaultSynthProperties = 1989 !Args.hasArg(OPT_disable_objc_default_synthesize_properties); 1990 Opts.EncodeExtendedBlockSig = 1991 Args.hasArg(OPT_fencode_extended_block_signature); 1992 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 1993 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); 1994 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); 1995 Opts.AlignDouble = Args.hasArg(OPT_malign_double); 1996 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 1997 Opts.PIE = Args.hasArg(OPT_pic_is_pie); 1998 Opts.Static = Args.hasArg(OPT_static_define); 1999 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 2000 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 2001 || Args.hasArg(OPT_fdump_record_layouts); 2002 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 2003 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 2004 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 2005 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 2006 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 2007 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 2008 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 2009 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 2010 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 2011 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 2012 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 2013 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 2014 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name_EQ); 2015 Opts.AppExt = Args.hasArg(OPT_fapplication_extension); 2016 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); 2017 std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); 2018 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); 2019 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns); 2020 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns 2021 // is enabled. 2022 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns) 2023 | Opts.NativeHalfArgsAndReturns; 2024 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); 2025 2026 // __declspec is enabled by default for the PS4 by the driver, and also 2027 // enabled for Microsoft Extensions or Borland Extensions, here. 2028 // 2029 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a 2030 // CUDA extension. However, it is required for supporting 2031 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has 2032 // been rewritten in terms of something more generic, remove the Opts.CUDA 2033 // term here. 2034 Opts.DeclSpecKeyword = 2035 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, 2036 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); 2037 2038 // For now, we only support local submodule visibility in C++ (because we 2039 // heavily depend on the ODR for merging redefinitions). 2040 if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus) 2041 Diags.Report(diag::err_drv_argument_not_allowed_with) 2042 << "-fmodules-local-submodule-visibility" << "C"; 2043 2044 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { 2045 switch (llvm::StringSwitch<unsigned>(A->getValue()) 2046 .Case("target", LangOptions::ASMM_Target) 2047 .Case("no", LangOptions::ASMM_Off) 2048 .Case("yes", LangOptions::ASMM_On) 2049 .Default(255)) { 2050 default: 2051 Diags.Report(diag::err_drv_invalid_value) 2052 << "-faddress-space-map-mangling=" << A->getValue(); 2053 break; 2054 case LangOptions::ASMM_Target: 2055 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); 2056 break; 2057 case LangOptions::ASMM_On: 2058 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); 2059 break; 2060 case LangOptions::ASMM_Off: 2061 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); 2062 break; 2063 } 2064 } 2065 2066 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { 2067 LangOptions::PragmaMSPointersToMembersKind InheritanceModel = 2068 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( 2069 A->getValue()) 2070 .Case("single", 2071 LangOptions::PPTMK_FullGeneralitySingleInheritance) 2072 .Case("multiple", 2073 LangOptions::PPTMK_FullGeneralityMultipleInheritance) 2074 .Case("virtual", 2075 LangOptions::PPTMK_FullGeneralityVirtualInheritance) 2076 .Default(LangOptions::PPTMK_BestCase); 2077 if (InheritanceModel == LangOptions::PPTMK_BestCase) 2078 Diags.Report(diag::err_drv_invalid_value) 2079 << "-fms-memptr-rep=" << A->getValue(); 2080 2081 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); 2082 } 2083 2084 // Check for MS default calling conventions being specified. 2085 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) { 2086 LangOptions::DefaultCallingConvention DefaultCC = 2087 llvm::StringSwitch<LangOptions::DefaultCallingConvention>( 2088 A->getValue()) 2089 .Case("cdecl", LangOptions::DCC_CDecl) 2090 .Case("fastcall", LangOptions::DCC_FastCall) 2091 .Case("stdcall", LangOptions::DCC_StdCall) 2092 .Case("vectorcall", LangOptions::DCC_VectorCall) 2093 .Default(LangOptions::DCC_None); 2094 if (DefaultCC == LangOptions::DCC_None) 2095 Diags.Report(diag::err_drv_invalid_value) 2096 << "-fdefault-calling-conv=" << A->getValue(); 2097 2098 llvm::Triple T(TargetOpts.Triple); 2099 llvm::Triple::ArchType Arch = T.getArch(); 2100 bool emitError = (DefaultCC == LangOptions::DCC_FastCall || 2101 DefaultCC == LangOptions::DCC_StdCall) && 2102 Arch != llvm::Triple::x86; 2103 emitError |= DefaultCC == LangOptions::DCC_VectorCall && 2104 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64); 2105 if (emitError) 2106 Diags.Report(diag::err_drv_argument_not_allowed_with) 2107 << A->getSpelling() << T.getTriple(); 2108 else 2109 Opts.setDefaultCallingConv(DefaultCC); 2110 } 2111 2112 // -mrtd option 2113 if (Arg *A = Args.getLastArg(OPT_mrtd)) { 2114 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None) 2115 Diags.Report(diag::err_drv_argument_not_allowed_with) 2116 << A->getSpelling() << "-fdefault-calling-conv"; 2117 else { 2118 llvm::Triple T(TargetOpts.Triple); 2119 if (T.getArch() != llvm::Triple::x86) 2120 Diags.Report(diag::err_drv_argument_not_allowed_with) 2121 << A->getSpelling() << T.getTriple(); 2122 else 2123 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall); 2124 } 2125 } 2126 2127 // Check if -fopenmp is specified. 2128 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0; 2129 Opts.OpenMPUseTLS = 2130 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); 2131 Opts.OpenMPIsDevice = 2132 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device); 2133 2134 if (Opts.OpenMP) { 2135 int Version = 2136 getLastArgIntValue(Args, OPT_fopenmp_version_EQ, Opts.OpenMP, Diags); 2137 if (Version != 0) 2138 Opts.OpenMP = Version; 2139 // Provide diagnostic when a given target is not expected to be an OpenMP 2140 // device or host. 2141 if (!Opts.OpenMPIsDevice) { 2142 switch (T.getArch()) { 2143 default: 2144 break; 2145 // Add unsupported host targets here: 2146 case llvm::Triple::nvptx: 2147 case llvm::Triple::nvptx64: 2148 Diags.Report(clang::diag::err_drv_omp_host_target_not_supported) 2149 << TargetOpts.Triple; 2150 break; 2151 } 2152 } 2153 } 2154 2155 // Get the OpenMP target triples if any. 2156 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) { 2157 2158 for (unsigned i = 0; i < A->getNumValues(); ++i) { 2159 llvm::Triple TT(A->getValue(i)); 2160 2161 if (TT.getArch() == llvm::Triple::UnknownArch) 2162 Diags.Report(clang::diag::err_drv_invalid_omp_target) << A->getValue(i); 2163 else 2164 Opts.OMPTargetTriples.push_back(TT); 2165 } 2166 } 2167 2168 // Get OpenMP host file path if any and report if a non existent file is 2169 // found 2170 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) { 2171 Opts.OMPHostIRFile = A->getValue(); 2172 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile)) 2173 Diags.Report(clang::diag::err_drv_omp_host_ir_file_not_found) 2174 << Opts.OMPHostIRFile; 2175 } 2176 2177 // Record whether the __DEPRECATED define was requested. 2178 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 2179 OPT_fno_deprecated_macro, 2180 Opts.Deprecated); 2181 2182 // FIXME: Eliminate this dependency. 2183 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 2184 OptSize = getOptimizationLevelSize(Args); 2185 Opts.Optimize = Opt != 0; 2186 Opts.OptimizeSize = OptSize != 0; 2187 2188 // This is the __NO_INLINE__ define, which just depends on things like the 2189 // optimization level and -fno-inline, not actually whether the backend has 2190 // inlining enabled. 2191 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); 2192 2193 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 2194 Args.hasArg(OPT_cl_fast_relaxed_math); 2195 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || 2196 Args.hasArg(OPT_cl_finite_math_only) || 2197 Args.hasArg(OPT_cl_fast_relaxed_math); 2198 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 2199 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 2200 Args.hasArg(OPT_cl_fast_relaxed_math); 2201 2202 Opts.RetainCommentsFromSystemHeaders = 2203 Args.hasArg(OPT_fretain_comments_from_system_headers); 2204 2205 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags); 2206 switch (SSP) { 2207 default: 2208 Diags.Report(diag::err_drv_invalid_value) 2209 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 2210 break; 2211 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 2212 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 2213 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break; 2214 case 3: Opts.setStackProtector(LangOptions::SSPReq); break; 2215 } 2216 2217 // Parse -fsanitize= arguments. 2218 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2219 Diags, Opts.Sanitize); 2220 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. 2221 Opts.SanitizeAddressFieldPadding = 2222 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); 2223 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); 2224 } 2225 2226 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 2227 FileManager &FileMgr, 2228 DiagnosticsEngine &Diags) { 2229 using namespace options; 2230 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 2231 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 2232 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 2233 Opts.TokenCache = A->getValue(); 2234 else 2235 Opts.TokenCache = Opts.ImplicitPTHInclude; 2236 Opts.UsePredefines = !Args.hasArg(OPT_undef); 2237 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 2238 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 2239 2240 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 2241 for (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 2242 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 2243 2244 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 2245 StringRef Value(A->getValue()); 2246 size_t Comma = Value.find(','); 2247 unsigned Bytes = 0; 2248 unsigned EndOfLine = 0; 2249 2250 if (Comma == StringRef::npos || 2251 Value.substr(0, Comma).getAsInteger(10, Bytes) || 2252 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 2253 Diags.Report(diag::err_drv_preamble_format); 2254 else { 2255 Opts.PrecompiledPreambleBytes.first = Bytes; 2256 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 2257 } 2258 } 2259 2260 // Add macros from the command line. 2261 for (const Arg *A : Args.filtered(OPT_D, OPT_U)) { 2262 if (A->getOption().matches(OPT_D)) 2263 Opts.addMacroDef(A->getValue()); 2264 else 2265 Opts.addMacroUndef(A->getValue()); 2266 } 2267 2268 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 2269 2270 // Add the ordered list of -includes. 2271 for (const Arg *A : Args.filtered(OPT_include)) 2272 Opts.Includes.emplace_back(A->getValue()); 2273 2274 for (const Arg *A : Args.filtered(OPT_chain_include)) 2275 Opts.ChainedIncludes.emplace_back(A->getValue()); 2276 2277 for (const Arg *A : Args.filtered(OPT_remap_file)) { 2278 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';'); 2279 2280 if (Split.second.empty()) { 2281 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 2282 continue; 2283 } 2284 2285 Opts.addRemappedFile(Split.first, Split.second); 2286 } 2287 2288 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 2289 StringRef Name = A->getValue(); 2290 unsigned Library = llvm::StringSwitch<unsigned>(Name) 2291 .Case("libc++", ARCXX_libcxx) 2292 .Case("libstdc++", ARCXX_libstdcxx) 2293 .Case("none", ARCXX_nolib) 2294 .Default(~0U); 2295 if (Library == ~0U) 2296 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 2297 else 2298 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 2299 } 2300 } 2301 2302 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 2303 ArgList &Args, 2304 frontend::ActionKind Action) { 2305 using namespace options; 2306 2307 switch (Action) { 2308 case frontend::ASTDeclList: 2309 case frontend::ASTDump: 2310 case frontend::ASTPrint: 2311 case frontend::ASTView: 2312 case frontend::EmitAssembly: 2313 case frontend::EmitBC: 2314 case frontend::EmitHTML: 2315 case frontend::EmitLLVM: 2316 case frontend::EmitLLVMOnly: 2317 case frontend::EmitCodeGenOnly: 2318 case frontend::EmitObj: 2319 case frontend::FixIt: 2320 case frontend::GenerateModule: 2321 case frontend::GenerateModuleInterface: 2322 case frontend::GeneratePCH: 2323 case frontend::GeneratePTH: 2324 case frontend::ParseSyntaxOnly: 2325 case frontend::ModuleFileInfo: 2326 case frontend::VerifyPCH: 2327 case frontend::PluginAction: 2328 case frontend::PrintDeclContext: 2329 case frontend::RewriteObjC: 2330 case frontend::RewriteTest: 2331 case frontend::RunAnalysis: 2332 case frontend::MigrateSource: 2333 Opts.ShowCPP = 0; 2334 break; 2335 2336 case frontend::DumpRawTokens: 2337 case frontend::DumpTokens: 2338 case frontend::InitOnly: 2339 case frontend::PrintPreamble: 2340 case frontend::PrintPreprocessedInput: 2341 case frontend::RewriteMacros: 2342 case frontend::RunPreprocessorOnly: 2343 Opts.ShowCPP = !Args.hasArg(OPT_dM); 2344 break; 2345 } 2346 2347 Opts.ShowComments = Args.hasArg(OPT_C); 2348 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 2349 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 2350 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 2351 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI); 2352 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 2353 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); 2354 } 2355 2356 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args, 2357 DiagnosticsEngine &Diags) { 2358 using namespace options; 2359 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 2360 if (Arg *A = Args.getLastArg(OPT_meabi)) { 2361 StringRef Value = A->getValue(); 2362 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) 2363 .Case("default", llvm::EABI::Default) 2364 .Case("4", llvm::EABI::EABI4) 2365 .Case("5", llvm::EABI::EABI5) 2366 .Case("gnu", llvm::EABI::GNU) 2367 .Default(llvm::EABI::Unknown); 2368 if (EABIVersion == llvm::EABI::Unknown) 2369 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) 2370 << Value; 2371 else 2372 Opts.EABIVersion = Value; 2373 } 2374 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 2375 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); 2376 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 2377 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 2378 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 2379 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); 2380 // Use the default target triple if unspecified. 2381 if (Opts.Triple.empty()) 2382 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 2383 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ); 2384 } 2385 2386 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 2387 const char *const *ArgBegin, 2388 const char *const *ArgEnd, 2389 DiagnosticsEngine &Diags) { 2390 bool Success = true; 2391 2392 // Parse the arguments. 2393 std::unique_ptr<OptTable> Opts(createDriverOptTable()); 2394 const unsigned IncludedFlagsBitmask = options::CC1Option; 2395 unsigned MissingArgIndex, MissingArgCount; 2396 InputArgList Args = 2397 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, 2398 MissingArgCount, IncludedFlagsBitmask); 2399 LangOptions &LangOpts = *Res.getLangOpts(); 2400 2401 // Check for missing argument error. 2402 if (MissingArgCount) { 2403 Diags.Report(diag::err_drv_missing_argument) 2404 << Args.getArgString(MissingArgIndex) << MissingArgCount; 2405 Success = false; 2406 } 2407 2408 // Issue errors on unknown arguments. 2409 for (const Arg *A : Args.filtered(OPT_UNKNOWN)) { 2410 Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); 2411 Success = false; 2412 } 2413 2414 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); 2415 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); 2416 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); 2417 Success &= 2418 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags, 2419 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/); 2420 ParseCommentArgs(LangOpts.CommentOpts, Args); 2421 ParseFileSystemArgs(Res.getFileSystemOpts(), Args); 2422 // FIXME: We shouldn't have to pass the DashX option around here 2423 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, 2424 LangOpts.IsHeaderFile); 2425 ParseTargetArgs(Res.getTargetOpts(), Args, Diags); 2426 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, 2427 Res.getTargetOpts()); 2428 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args); 2429 if (DashX == IK_AST || DashX == IK_LLVM_IR) { 2430 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the 2431 // PassManager in BackendUtil.cpp. They need to be initializd no matter 2432 // what the input type is. 2433 if (Args.hasArg(OPT_fobjc_arc)) 2434 LangOpts.ObjCAutoRefCount = 1; 2435 // PIClevel and PIELevel are needed during code generation and this should be 2436 // set regardless of the input type. 2437 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); 2438 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie); 2439 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), 2440 Diags, LangOpts.Sanitize); 2441 } else { 2442 // Other LangOpts are only initialzed when the input is not AST or LLVM IR. 2443 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(), 2444 Res.getPreprocessorOpts(), Diags); 2445 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 2446 LangOpts.ObjCExceptions = 1; 2447 } 2448 2449 if (LangOpts.CUDA) { 2450 // During CUDA device-side compilation, the aux triple is the 2451 // triple used for host compilation. 2452 if (LangOpts.CUDAIsDevice) 2453 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple; 2454 2455 // Set default FP_CONTRACT to FAST. 2456 if (!Args.hasArg(OPT_ffp_contract)) 2457 Res.getCodeGenOpts().setFPContractMode(CodeGenOptions::FPC_Fast); 2458 } 2459 2460 // FIXME: Override value name discarding when asan or msan is used because the 2461 // backend passes depend on the name of the alloca in order to print out 2462 // names. 2463 Res.getCodeGenOpts().DiscardValueNames &= 2464 !LangOpts.Sanitize.has(SanitizerKind::Address) && 2465 !LangOpts.Sanitize.has(SanitizerKind::Memory); 2466 2467 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 2468 // PCH file and find the original header name. Remove the need to do that in 2469 // ParsePreprocessorArgs and remove the FileManager 2470 // parameters from the function and the "FileManager.h" #include. 2471 FileManager FileMgr(Res.getFileSystemOpts()); 2472 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, FileMgr, Diags); 2473 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, 2474 Res.getFrontendOpts().ProgramAction); 2475 2476 // Turn on -Wspir-compat for SPIR target. 2477 llvm::Triple T(Res.getTargetOpts().Triple); 2478 auto Arch = T.getArch(); 2479 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) { 2480 Res.getDiagnosticOpts().Warnings.push_back("spir-compat"); 2481 } 2482 return Success; 2483 } 2484 2485 std::string CompilerInvocation::getModuleHash() const { 2486 // Note: For QoI reasons, the things we use as a hash here should all be 2487 // dumped via the -module-info flag. 2488 using llvm::hash_code; 2489 using llvm::hash_value; 2490 using llvm::hash_combine; 2491 2492 // Start the signature with the compiler version. 2493 // FIXME: We'd rather use something more cryptographically sound than 2494 // CityHash, but this will do for now. 2495 hash_code code = hash_value(getClangFullRepositoryVersion()); 2496 2497 // Extend the signature with the language options 2498 #define LANGOPT(Name, Bits, Default, Description) \ 2499 code = hash_combine(code, LangOpts->Name); 2500 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 2501 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 2502 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 2503 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 2504 #include "clang/Basic/LangOptions.def" 2505 2506 for (StringRef Feature : LangOpts->ModuleFeatures) 2507 code = hash_combine(code, Feature); 2508 2509 // Extend the signature with the target options. 2510 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 2511 TargetOpts->ABI); 2512 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 2513 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 2514 2515 // Extend the signature with preprocessor options. 2516 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 2517 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 2518 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 2519 2520 for (std::vector<std::pair<std::string, bool/*isUndef*/>>::const_iterator 2521 I = getPreprocessorOpts().Macros.begin(), 2522 IEnd = getPreprocessorOpts().Macros.end(); 2523 I != IEnd; ++I) { 2524 // If we're supposed to ignore this macro for the purposes of modules, 2525 // don't put it into the hash. 2526 if (!hsOpts.ModulesIgnoreMacros.empty()) { 2527 // Check whether we're ignoring this macro. 2528 StringRef MacroDef = I->first; 2529 if (hsOpts.ModulesIgnoreMacros.count( 2530 llvm::CachedHashString(MacroDef.split('=').first))) 2531 continue; 2532 } 2533 2534 code = hash_combine(code, I->first, I->second); 2535 } 2536 2537 // Extend the signature with the sysroot and other header search options. 2538 code = hash_combine(code, hsOpts.Sysroot, 2539 hsOpts.ModuleFormat, 2540 hsOpts.UseDebugInfo, 2541 hsOpts.UseBuiltinIncludes, 2542 hsOpts.UseStandardSystemIncludes, 2543 hsOpts.UseStandardCXXIncludes, 2544 hsOpts.UseLibcxx, 2545 hsOpts.ModulesValidateDiagnosticOptions); 2546 code = hash_combine(code, hsOpts.ResourceDir); 2547 2548 // Extend the signature with the user build path. 2549 code = hash_combine(code, hsOpts.ModuleUserBuildPath); 2550 2551 // Extend the signature with the module file extensions. 2552 const FrontendOptions &frontendOpts = getFrontendOpts(); 2553 for (const auto &ext : frontendOpts.ModuleFileExtensions) { 2554 code = ext->hashExtension(code); 2555 } 2556 2557 // Darwin-specific hack: if we have a sysroot, use the contents and 2558 // modification time of 2559 // $sysroot/System/Library/CoreServices/SystemVersion.plist 2560 // as part of the module hash. 2561 if (!hsOpts.Sysroot.empty()) { 2562 SmallString<128> systemVersionFile; 2563 systemVersionFile += hsOpts.Sysroot; 2564 llvm::sys::path::append(systemVersionFile, "System"); 2565 llvm::sys::path::append(systemVersionFile, "Library"); 2566 llvm::sys::path::append(systemVersionFile, "CoreServices"); 2567 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist"); 2568 2569 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer = 2570 llvm::MemoryBuffer::getFile(systemVersionFile); 2571 if (buffer) { 2572 code = hash_combine(code, buffer.get()->getBuffer()); 2573 2574 struct stat statBuf; 2575 if (stat(systemVersionFile.c_str(), &statBuf) == 0) 2576 code = hash_combine(code, statBuf.st_mtime); 2577 } 2578 } 2579 2580 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 2581 } 2582 2583 namespace clang { 2584 2585 template<typename IntTy> 2586 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, 2587 IntTy Default, 2588 DiagnosticsEngine *Diags) { 2589 IntTy Res = Default; 2590 if (Arg *A = Args.getLastArg(Id)) { 2591 if (StringRef(A->getValue()).getAsInteger(10, Res)) { 2592 if (Diags) 2593 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) 2594 << A->getValue(); 2595 } 2596 } 2597 return Res; 2598 } 2599 2600 2601 // Declared in clang/Frontend/Utils.h. 2602 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, 2603 DiagnosticsEngine *Diags) { 2604 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); 2605 } 2606 2607 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, 2608 uint64_t Default, 2609 DiagnosticsEngine *Diags) { 2610 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); 2611 } 2612 2613 void BuryPointer(const void *Ptr) { 2614 // This function may be called only a small fixed amount of times per each 2615 // invocation, otherwise we do actually have a leak which we want to report. 2616 // If this function is called more than kGraveYardMaxSize times, the pointers 2617 // will not be properly buried and a leak detector will report a leak, which 2618 // is what we want in such case. 2619 static const size_t kGraveYardMaxSize = 16; 2620 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; 2621 static std::atomic<unsigned> GraveYardSize; 2622 unsigned Idx = GraveYardSize++; 2623 if (Idx >= kGraveYardMaxSize) 2624 return; 2625 GraveYard[Idx] = Ptr; 2626 } 2627 2628 IntrusiveRefCntPtr<vfs::FileSystem> 2629 createVFSFromCompilerInvocation(const CompilerInvocation &CI, 2630 DiagnosticsEngine &Diags) { 2631 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) 2632 return vfs::getRealFileSystem(); 2633 2634 IntrusiveRefCntPtr<vfs::OverlayFileSystem> 2635 Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem())); 2636 // earlier vfs files are on the bottom 2637 for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { 2638 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = 2639 llvm::MemoryBuffer::getFile(File); 2640 if (!Buffer) { 2641 Diags.Report(diag::err_missing_vfs_overlay_file) << File; 2642 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2643 } 2644 2645 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML( 2646 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File); 2647 if (!FS.get()) { 2648 Diags.Report(diag::err_invalid_vfs_overlay) << File; 2649 return IntrusiveRefCntPtr<vfs::FileSystem>(); 2650 } 2651 Overlay->pushOverlay(FS); 2652 } 2653 return Overlay; 2654 } 2655 } // end namespace clang 2656