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