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 "clang/Basic/Diagnostic.h" 12 #include "clang/Basic/FileManager.h" 13 #include "clang/Basic/Version.h" 14 #include "clang/Driver/Arg.h" 15 #include "clang/Driver/ArgList.h" 16 #include "clang/Driver/DriverDiagnostic.h" 17 #include "clang/Driver/OptTable.h" 18 #include "clang/Driver/Option.h" 19 #include "clang/Driver/Options.h" 20 #include "clang/Frontend/LangStandard.h" 21 #include "clang/Lex/HeaderSearchOptions.h" 22 #include "clang/Serialization/ASTReader.h" 23 #include "llvm/ADT/Hashing.h" 24 #include "llvm/ADT/OwningPtr.h" 25 #include "llvm/ADT/SmallVector.h" 26 #include "llvm/ADT/StringExtras.h" 27 #include "llvm/ADT/StringSwitch.h" 28 #include "llvm/ADT/Triple.h" 29 #include "llvm/Support/ErrorHandling.h" 30 #include "llvm/Support/Host.h" 31 #include "llvm/Support/Path.h" 32 #include "llvm/Support/system_error.h" 33 using namespace clang; 34 35 //===----------------------------------------------------------------------===// 36 // Initialization. 37 //===----------------------------------------------------------------------===// 38 39 CompilerInvocationBase::CompilerInvocationBase() 40 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 41 DiagnosticOpts(new DiagnosticOptions()), 42 HeaderSearchOpts(new HeaderSearchOptions()), 43 PreprocessorOpts(new PreprocessorOptions()) {} 44 45 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 46 : RefCountedBase<CompilerInvocation>(), 47 LangOpts(new LangOptions(*X.getLangOpts())), 48 TargetOpts(new TargetOptions(X.getTargetOpts())), 49 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 50 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 51 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 52 53 //===----------------------------------------------------------------------===// 54 // Deserialization (from args) 55 //===----------------------------------------------------------------------===// 56 57 using namespace clang::driver; 58 using namespace clang::driver::options; 59 60 // 61 62 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 63 DiagnosticsEngine &Diags) { 64 unsigned DefaultOpt = 0; 65 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 66 DefaultOpt = 2; 67 68 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 69 if (A->getOption().matches(options::OPT_O0)) 70 return 0; 71 72 if (A->getOption().matches(options::OPT_Ofast)) 73 return 3; 74 75 assert (A->getOption().matches(options::OPT_O)); 76 77 StringRef S(A->getValue()); 78 if (S == "s" || S == "z" || S.empty()) 79 return 2; 80 81 return Args.getLastArgIntValue(OPT_O, DefaultOpt, Diags); 82 } 83 84 return DefaultOpt; 85 } 86 87 static unsigned getOptimizationLevelSize(ArgList &Args) { 88 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 89 if (A->getOption().matches(options::OPT_O)) { 90 switch (A->getValue()[0]) { 91 default: 92 return 0; 93 case 's': 94 return 1; 95 case 'z': 96 return 2; 97 } 98 } 99 } 100 return 0; 101 } 102 103 static bool isOptimizationLevelFast(ArgList &Args) { 104 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) 105 if (A->getOption().matches(options::OPT_Ofast)) 106 return true; 107 return false; 108 } 109 110 static void addWarningArgs(ArgList &Args, std::vector<std::string> &Warnings) { 111 for (arg_iterator I = Args.filtered_begin(OPT_W_Group), 112 E = Args.filtered_end(); I != E; ++I) { 113 Arg *A = *I; 114 // If the argument is a pure flag, add its name (minus the "W" at the beginning) 115 // to the warning list. Else, add its value (for the OPT_W case). 116 if (A->getOption().getKind() == Option::FlagClass) { 117 Warnings.push_back(A->getOption().getName().substr(1)); 118 } else { 119 for (unsigned Idx = 0, End = A->getNumValues(); 120 Idx < End; ++Idx) { 121 StringRef V = A->getValue(Idx); 122 // "-Wl," and such are not warning options. 123 // FIXME: Should be handled by putting these in separate flags. 124 if (V.startswith("l,") || V.startswith("a,") || V.startswith("p,")) 125 continue; 126 127 Warnings.push_back(V); 128 } 129 } 130 } 131 } 132 133 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 134 DiagnosticsEngine &Diags) { 135 using namespace options; 136 bool Success = true; 137 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 138 StringRef Name = A->getValue(); 139 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 140 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 141 .Case(CMDFLAG, NAME##Model) 142 #include "clang/StaticAnalyzer/Core/Analyses.def" 143 .Default(NumStores); 144 if (Value == NumStores) { 145 Diags.Report(diag::err_drv_invalid_value) 146 << A->getAsString(Args) << Name; 147 Success = false; 148 } else { 149 Opts.AnalysisStoreOpt = Value; 150 } 151 } 152 153 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 154 StringRef Name = A->getValue(); 155 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 156 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 157 .Case(CMDFLAG, NAME##Model) 158 #include "clang/StaticAnalyzer/Core/Analyses.def" 159 .Default(NumConstraints); 160 if (Value == NumConstraints) { 161 Diags.Report(diag::err_drv_invalid_value) 162 << A->getAsString(Args) << Name; 163 Success = false; 164 } else { 165 Opts.AnalysisConstraintsOpt = Value; 166 } 167 } 168 169 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 170 StringRef Name = A->getValue(); 171 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 172 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREAT) \ 173 .Case(CMDFLAG, PD_##NAME) 174 #include "clang/StaticAnalyzer/Core/Analyses.def" 175 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 176 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 177 Diags.Report(diag::err_drv_invalid_value) 178 << A->getAsString(Args) << Name; 179 Success = false; 180 } else { 181 Opts.AnalysisDiagOpt = Value; 182 } 183 } 184 185 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 186 StringRef Name = A->getValue(); 187 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 188 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 189 .Case(CMDFLAG, NAME) 190 #include "clang/StaticAnalyzer/Core/Analyses.def" 191 .Default(NumPurgeModes); 192 if (Value == NumPurgeModes) { 193 Diags.Report(diag::err_drv_invalid_value) 194 << A->getAsString(Args) << Name; 195 Success = false; 196 } else { 197 Opts.AnalysisPurgeOpt = Value; 198 } 199 } 200 201 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 202 StringRef Name = A->getValue(); 203 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 204 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 205 .Case(CMDFLAG, NAME) 206 #include "clang/StaticAnalyzer/Core/Analyses.def" 207 .Default(NumInliningModes); 208 if (Value == NumInliningModes) { 209 Diags.Report(diag::err_drv_invalid_value) 210 << A->getAsString(Args) << Name; 211 Success = false; 212 } else { 213 Opts.InliningMode = Value; 214 } 215 } 216 217 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 218 Opts.visualizeExplodedGraphWithGraphViz = 219 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 220 Opts.visualizeExplodedGraphWithUbiGraph = 221 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 222 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 223 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 224 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 225 Opts.AnalyzeNestedBlocks = 226 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 227 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 228 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 229 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 230 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 231 Opts.maxBlockVisitOnPath = Args.getLastArgIntValue(OPT_analyzer_max_loop, 4, Diags); 232 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 233 Opts.InlineMaxStackDepth = 234 Args.getLastArgIntValue(OPT_analyzer_inline_max_stack_depth, 235 Opts.InlineMaxStackDepth, Diags); 236 237 Opts.CheckersControlList.clear(); 238 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_checker, 239 OPT_analyzer_disable_checker), 240 ie = Args.filtered_end(); it != ie; ++it) { 241 const Arg *A = *it; 242 A->claim(); 243 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 244 // We can have a list of comma separated checker names, e.g: 245 // '-analyzer-checker=cocoa,unix' 246 StringRef checkerList = A->getValue(); 247 SmallVector<StringRef, 4> checkers; 248 checkerList.split(checkers, ","); 249 for (unsigned i = 0, e = checkers.size(); i != e; ++i) 250 Opts.CheckersControlList.push_back(std::make_pair(checkers[i], enable)); 251 } 252 253 // Go through the analyzer configuration options. 254 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_config), 255 ie = Args.filtered_end(); it != ie; ++it) { 256 const Arg *A = *it; 257 A->claim(); 258 // We can have a list of comma separated config names, e.g: 259 // '-analyzer-config key1=val1,key2=val2' 260 StringRef configList = A->getValue(); 261 SmallVector<StringRef, 4> configVals; 262 configList.split(configVals, ","); 263 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 264 StringRef key, val; 265 llvm::tie(key, val) = configVals[i].split("="); 266 if (val.empty()) { 267 Diags.Report(SourceLocation(), 268 diag::err_analyzer_config_no_value) << configVals[i]; 269 Success = false; 270 break; 271 } 272 if (val.find('=') != StringRef::npos) { 273 Diags.Report(SourceLocation(), 274 diag::err_analyzer_config_multiple_values) 275 << configVals[i]; 276 Success = false; 277 break; 278 } 279 Opts.Config[key] = val; 280 } 281 } 282 283 return Success; 284 } 285 286 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 287 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 288 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 289 return true; 290 } 291 292 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { 293 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); 294 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); 295 } 296 297 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 298 DiagnosticsEngine &Diags) { 299 using namespace options; 300 bool Success = true; 301 302 unsigned OptLevel = getOptimizationLevel(Args, IK, Diags); 303 if (OptLevel > 3) { 304 Diags.Report(diag::err_drv_invalid_value) 305 << Args.getLastArg(OPT_O)->getAsString(Args) << OptLevel; 306 OptLevel = 3; 307 Success = false; 308 } 309 Opts.OptimizationLevel = OptLevel; 310 311 // We must always run at least the always inlining pass. 312 Opts.setInlining( 313 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining 314 : CodeGenOptions::OnlyAlwaysInlining); 315 // -fno-inline-functions overrides OptimizationLevel > 1. 316 Opts.NoInline = Args.hasArg(OPT_fno_inline); 317 Opts.setInlining(Args.hasArg(OPT_fno_inline_functions) ? 318 CodeGenOptions::OnlyAlwaysInlining : Opts.getInlining()); 319 320 if (Args.hasArg(OPT_gline_tables_only)) { 321 Opts.setDebugInfo(CodeGenOptions::DebugLineTablesOnly); 322 } else if (Args.hasArg(OPT_g_Flag)) { 323 if (Args.hasFlag(OPT_flimit_debug_info, OPT_fno_limit_debug_info, true)) 324 Opts.setDebugInfo(CodeGenOptions::LimitedDebugInfo); 325 else 326 Opts.setDebugInfo(CodeGenOptions::FullDebugInfo); 327 } 328 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 329 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); 330 331 Opts.ModulesAutolink = Args.hasArg(OPT_fmodules_autolink); 332 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); 333 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 334 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 335 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 336 OPT_fuse_register_sized_bitfield_access); 337 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing) || 338 isOptimizationLevelFast(Args); 339 Opts.StructPathTBAA = Args.hasArg(OPT_struct_path_tbaa); 340 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 341 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 342 Opts.NoCommon = Args.hasArg(OPT_fno_common); 343 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 344 Opts.OptimizeSize = getOptimizationLevelSize(Args); 345 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 346 Args.hasArg(OPT_ffreestanding)); 347 Opts.UnrollLoops = Args.hasArg(OPT_funroll_loops) || 348 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize); 349 350 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 351 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 352 Opts.CUDAIsDevice = Args.hasArg(OPT_fcuda_is_device); 353 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 354 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 355 Opts.CodeModel = Args.getLastArgValue(OPT_mcode_model); 356 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 357 Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim); 358 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 359 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 360 Opts.HiddenWeakVTables = Args.hasArg(OPT_fhidden_weak_vtables); 361 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 362 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 363 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 364 Args.hasArg(OPT_cl_finite_math_only)|| 365 Args.hasArg(OPT_cl_fast_relaxed_math)); 366 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 367 Args.hasArg(OPT_cl_finite_math_only)|| 368 Args.hasArg(OPT_cl_fast_relaxed_math)); 369 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 370 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 371 Opts.NumRegisterParameters = Args.getLastArgIntValue(OPT_mregparm, 0, Diags); 372 Opts.NoGlobalMerge = Args.hasArg(OPT_mno_global_merge); 373 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 374 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); 375 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 376 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 377 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 378 Opts.NoDwarf2CFIAsm = Args.hasArg(OPT_fno_dwarf2_cfi_asm); 379 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 380 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 381 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 382 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 383 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 384 Args.hasArg(OPT_cl_fast_relaxed_math); 385 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 386 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 387 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 388 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 389 390 Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections); 391 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 392 393 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 394 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 395 Opts.SanitizeRecover = !Args.hasArg(OPT_fno_sanitize_recover); 396 397 Opts.DisableGCov = Args.hasArg(OPT_test_coverage); 398 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 399 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 400 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { 401 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file); 402 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); 403 Opts.CoverageNoFunctionNamesInData = 404 Args.hasArg(OPT_coverage_no_function_names_in_data); 405 if (Args.hasArg(OPT_coverage_version_EQ)) { 406 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); 407 if (CoverageVersion.size() != 4) { 408 Diags.Report(diag::err_drv_invalid_value) 409 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) 410 << CoverageVersion; 411 } else { 412 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); 413 } 414 } 415 } 416 417 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 418 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 419 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 420 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 421 Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file); 422 Opts.SanitizerBlacklistFile = Args.getLastArgValue(OPT_fsanitize_blacklist); 423 Opts.SanitizeMemoryTrackOrigins = 424 Args.hasArg(OPT_fsanitize_memory_track_origins); 425 Opts.SanitizeAddressZeroBaseShadow = 426 Args.hasArg(OPT_fsanitize_address_zero_base_shadow); 427 Opts.SanitizeUndefinedTrapOnError = 428 Args.hasArg(OPT_fsanitize_undefined_trap_on_error); 429 Opts.SSPBufferSize = 430 Args.getLastArgIntValue(OPT_stack_protector_buffer_size, 8, Diags); 431 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 432 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 433 StringRef Val = A->getValue(); 434 unsigned StackAlignment = Opts.StackAlignment; 435 Val.getAsInteger(10, StackAlignment); 436 Opts.StackAlignment = StackAlignment; 437 } 438 439 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 440 StringRef Name = A->getValue(); 441 unsigned Method = llvm::StringSwitch<unsigned>(Name) 442 .Case("legacy", CodeGenOptions::Legacy) 443 .Case("non-legacy", CodeGenOptions::NonLegacy) 444 .Case("mixed", CodeGenOptions::Mixed) 445 .Default(~0U); 446 if (Method == ~0U) { 447 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 448 Success = false; 449 } else { 450 Opts.setObjCDispatchMethod( 451 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 452 } 453 } 454 455 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 456 StringRef Name = A->getValue(); 457 unsigned Model = llvm::StringSwitch<unsigned>(Name) 458 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 459 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 460 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 461 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 462 .Default(~0U); 463 if (Model == ~0U) { 464 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 465 Success = false; 466 } else { 467 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 468 } 469 } 470 471 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 472 StringRef Val = A->getValue(); 473 if (Val == "fast") 474 Opts.setFPContractMode(CodeGenOptions::FPC_Fast); 475 else if (Val == "on") 476 Opts.setFPContractMode(CodeGenOptions::FPC_On); 477 else if (Val == "off") 478 Opts.setFPContractMode(CodeGenOptions::FPC_Off); 479 else 480 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 481 } 482 483 return Success; 484 } 485 486 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 487 ArgList &Args) { 488 using namespace options; 489 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 490 Opts.Targets = Args.getAllArgValues(OPT_MT); 491 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 492 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 493 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 494 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 495 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 496 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 497 } 498 499 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 500 DiagnosticsEngine *Diags) { 501 using namespace options; 502 bool Success = true; 503 504 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 505 Opts.DiagnosticSerializationFile = 506 Args.getLastArgValue(OPT_diagnostic_serialized_file); 507 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 508 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 509 Opts.Pedantic = Args.hasArg(OPT_pedantic); 510 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 511 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 512 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics); 513 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 514 OPT_fno_show_column, 515 /*Default=*/true); 516 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 517 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 518 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option); 519 520 // Default behavior is to not to show note include stacks. 521 Opts.ShowNoteIncludeStack = false; 522 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 523 OPT_fno_diagnostics_show_note_include_stack)) 524 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 525 Opts.ShowNoteIncludeStack = true; 526 527 StringRef ShowOverloads = 528 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 529 if (ShowOverloads == "best") 530 Opts.setShowOverloads(Ovl_Best); 531 else if (ShowOverloads == "all") 532 Opts.setShowOverloads(Ovl_All); 533 else { 534 Success = false; 535 if (Diags) 536 Diags->Report(diag::err_drv_invalid_value) 537 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 538 << ShowOverloads; 539 } 540 541 StringRef ShowCategory = 542 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 543 if (ShowCategory == "none") 544 Opts.ShowCategories = 0; 545 else if (ShowCategory == "id") 546 Opts.ShowCategories = 1; 547 else if (ShowCategory == "name") 548 Opts.ShowCategories = 2; 549 else { 550 Success = false; 551 if (Diags) 552 Diags->Report(diag::err_drv_invalid_value) 553 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 554 << ShowCategory; 555 } 556 557 StringRef Format = 558 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 559 if (Format == "clang") 560 Opts.setFormat(DiagnosticOptions::Clang); 561 else if (Format == "msvc") 562 Opts.setFormat(DiagnosticOptions::Msvc); 563 else if (Format == "vi") 564 Opts.setFormat(DiagnosticOptions::Vi); 565 else { 566 Success = false; 567 if (Diags) 568 Diags->Report(diag::err_drv_invalid_value) 569 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 570 << Format; 571 } 572 573 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 574 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 575 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); 576 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 577 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 578 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 579 Opts.WarnOnSpellCheck = Args.hasArg(OPT_fwarn_on_spellcheck); 580 Opts.ErrorLimit = Args.getLastArgIntValue(OPT_ferror_limit, 0, Diags); 581 Opts.MacroBacktraceLimit 582 = Args.getLastArgIntValue(OPT_fmacro_backtrace_limit, 583 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 584 Opts.TemplateBacktraceLimit 585 = Args.getLastArgIntValue(OPT_ftemplate_backtrace_limit, 586 DiagnosticOptions::DefaultTemplateBacktraceLimit, 587 Diags); 588 Opts.ConstexprBacktraceLimit 589 = Args.getLastArgIntValue(OPT_fconstexpr_backtrace_limit, 590 DiagnosticOptions::DefaultConstexprBacktraceLimit, 591 Diags); 592 Opts.TabStop = Args.getLastArgIntValue(OPT_ftabstop, 593 DiagnosticOptions::DefaultTabStop, Diags); 594 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 595 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 596 if (Diags) 597 Diags->Report(diag::warn_ignoring_ftabstop_value) 598 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 599 } 600 Opts.MessageLength = Args.getLastArgIntValue(OPT_fmessage_length, 0, Diags); 601 addWarningArgs(Args, Opts.Warnings); 602 603 return Success; 604 } 605 606 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 607 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 608 } 609 610 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 611 DiagnosticsEngine &Diags) { 612 using namespace options; 613 Opts.ProgramAction = frontend::ParseSyntaxOnly; 614 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 615 switch (A->getOption().getID()) { 616 default: 617 llvm_unreachable("Invalid option in group!"); 618 case OPT_ast_list: 619 Opts.ProgramAction = frontend::ASTDeclList; break; 620 case OPT_ast_dump: 621 Opts.ProgramAction = frontend::ASTDump; break; 622 case OPT_ast_dump_xml: 623 Opts.ProgramAction = frontend::ASTDumpXML; break; 624 case OPT_ast_print: 625 Opts.ProgramAction = frontend::ASTPrint; break; 626 case OPT_ast_view: 627 Opts.ProgramAction = frontend::ASTView; break; 628 case OPT_dump_raw_tokens: 629 Opts.ProgramAction = frontend::DumpRawTokens; break; 630 case OPT_dump_tokens: 631 Opts.ProgramAction = frontend::DumpTokens; break; 632 case OPT_S: 633 Opts.ProgramAction = frontend::EmitAssembly; break; 634 case OPT_emit_llvm_bc: 635 Opts.ProgramAction = frontend::EmitBC; break; 636 case OPT_emit_html: 637 Opts.ProgramAction = frontend::EmitHTML; break; 638 case OPT_emit_llvm: 639 Opts.ProgramAction = frontend::EmitLLVM; break; 640 case OPT_emit_llvm_only: 641 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 642 case OPT_emit_codegen_only: 643 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 644 case OPT_emit_obj: 645 Opts.ProgramAction = frontend::EmitObj; break; 646 case OPT_fixit_EQ: 647 Opts.FixItSuffix = A->getValue(); 648 // fall-through! 649 case OPT_fixit: 650 Opts.ProgramAction = frontend::FixIt; break; 651 case OPT_emit_module: 652 Opts.ProgramAction = frontend::GenerateModule; break; 653 case OPT_emit_pch: 654 Opts.ProgramAction = frontend::GeneratePCH; break; 655 case OPT_emit_pth: 656 Opts.ProgramAction = frontend::GeneratePTH; break; 657 case OPT_init_only: 658 Opts.ProgramAction = frontend::InitOnly; break; 659 case OPT_fsyntax_only: 660 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 661 case OPT_module_file_info: 662 Opts.ProgramAction = frontend::ModuleFileInfo; break; 663 case OPT_print_decl_contexts: 664 Opts.ProgramAction = frontend::PrintDeclContext; break; 665 case OPT_print_preamble: 666 Opts.ProgramAction = frontend::PrintPreamble; break; 667 case OPT_E: 668 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 669 case OPT_rewrite_macros: 670 Opts.ProgramAction = frontend::RewriteMacros; break; 671 case OPT_rewrite_objc: 672 Opts.ProgramAction = frontend::RewriteObjC; break; 673 case OPT_rewrite_test: 674 Opts.ProgramAction = frontend::RewriteTest; break; 675 case OPT_analyze: 676 Opts.ProgramAction = frontend::RunAnalysis; break; 677 case OPT_migrate: 678 Opts.ProgramAction = frontend::MigrateSource; break; 679 case OPT_Eonly: 680 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 681 } 682 } 683 684 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 685 Opts.Plugins.push_back(A->getValue(0)); 686 Opts.ProgramAction = frontend::PluginAction; 687 Opts.ActionName = A->getValue(); 688 689 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 690 end = Args.filtered_end(); it != end; ++it) { 691 if ((*it)->getValue(0) == Opts.ActionName) 692 Opts.PluginArgs.push_back((*it)->getValue(1)); 693 } 694 } 695 696 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 697 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size()); 698 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) { 699 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 700 end = Args.filtered_end(); it != end; ++it) { 701 if ((*it)->getValue(0) == Opts.AddPluginActions[i]) 702 Opts.AddPluginArgs[i].push_back((*it)->getValue(1)); 703 } 704 } 705 706 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 707 Opts.CodeCompletionAt = 708 ParsedSourceLocation::FromString(A->getValue()); 709 if (Opts.CodeCompletionAt.FileName.empty()) 710 Diags.Report(diag::err_drv_invalid_value) 711 << A->getAsString(Args) << A->getValue(); 712 } 713 Opts.DisableFree = Args.hasArg(OPT_disable_free); 714 715 Opts.OutputFile = Args.getLastArgValue(OPT_o); 716 Opts.Plugins = Args.getAllArgValues(OPT_load); 717 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 718 Opts.ShowHelp = Args.hasArg(OPT_help); 719 Opts.ShowStats = Args.hasArg(OPT_print_stats); 720 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 721 Opts.ShowVersion = Args.hasArg(OPT_version); 722 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 723 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 724 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 725 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 726 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 727 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 728 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 729 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); 730 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; 731 732 Opts.CodeCompleteOpts.IncludeMacros 733 = Args.hasArg(OPT_code_completion_macros); 734 Opts.CodeCompleteOpts.IncludeCodePatterns 735 = Args.hasArg(OPT_code_completion_patterns); 736 Opts.CodeCompleteOpts.IncludeGlobals 737 = !Args.hasArg(OPT_no_code_completion_globals); 738 Opts.CodeCompleteOpts.IncludeBriefComments 739 = Args.hasArg(OPT_code_completion_brief_comments); 740 741 Opts.OverrideRecordLayoutsFile 742 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 743 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 744 OPT_arcmt_modify, 745 OPT_arcmt_migrate)) { 746 switch (A->getOption().getID()) { 747 default: 748 llvm_unreachable("missed a case"); 749 case OPT_arcmt_check: 750 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 751 break; 752 case OPT_arcmt_modify: 753 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 754 break; 755 case OPT_arcmt_migrate: 756 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 757 break; 758 } 759 } 760 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 761 Opts.ARCMTMigrateReportOut 762 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 763 Opts.ARCMTMigrateEmitARCErrors 764 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 765 766 if (Args.hasArg(OPT_objcmt_migrate_literals)) 767 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 768 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 769 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 770 771 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 772 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 773 Diags.Report(diag::err_drv_argument_not_allowed_with) 774 << "ARC migration" << "ObjC migration"; 775 } 776 777 InputKind DashX = IK_None; 778 if (const Arg *A = Args.getLastArg(OPT_x)) { 779 DashX = llvm::StringSwitch<InputKind>(A->getValue()) 780 .Case("c", IK_C) 781 .Case("cl", IK_OpenCL) 782 .Case("cuda", IK_CUDA) 783 .Case("c++", IK_CXX) 784 .Case("objective-c", IK_ObjC) 785 .Case("objective-c++", IK_ObjCXX) 786 .Case("cpp-output", IK_PreprocessedC) 787 .Case("assembler-with-cpp", IK_Asm) 788 .Case("c++-cpp-output", IK_PreprocessedCXX) 789 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 790 .Case("objc-cpp-output", IK_PreprocessedObjC) 791 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 792 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 793 .Case("c-header", IK_C) 794 .Case("cl-header", IK_OpenCL) 795 .Case("objective-c-header", IK_ObjC) 796 .Case("c++-header", IK_CXX) 797 .Case("objective-c++-header", IK_ObjCXX) 798 .Cases("ast", "pcm", IK_AST) 799 .Case("ir", IK_LLVM_IR) 800 .Default(IK_None); 801 if (DashX == IK_None) 802 Diags.Report(diag::err_drv_invalid_value) 803 << A->getAsString(Args) << A->getValue(); 804 } 805 806 // '-' is the default input if none is given. 807 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 808 Opts.Inputs.clear(); 809 if (Inputs.empty()) 810 Inputs.push_back("-"); 811 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 812 InputKind IK = DashX; 813 if (IK == IK_None) { 814 IK = FrontendOptions::getInputKindForExtension( 815 StringRef(Inputs[i]).rsplit('.').second); 816 // FIXME: Remove this hack. 817 if (i == 0) 818 DashX = IK; 819 } 820 Opts.Inputs.push_back(FrontendInputFile(Inputs[i], IK)); 821 } 822 823 return DashX; 824 } 825 826 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 827 void *MainAddr) { 828 llvm::sys::Path P = llvm::sys::Path::GetMainExecutable(Argv0, MainAddr); 829 830 if (!P.isEmpty()) { 831 P.eraseComponent(); // Remove /clang from foo/bin/clang 832 P.eraseComponent(); // Remove /bin from foo/bin 833 834 // Get foo/lib/clang/<version>/include 835 P.appendComponent("lib"); 836 P.appendComponent("clang"); 837 P.appendComponent(CLANG_VERSION_STRING); 838 } 839 840 return P.str(); 841 } 842 843 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 844 using namespace options; 845 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 846 Opts.Verbose = Args.hasArg(OPT_v); 847 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 848 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 849 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 850 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 851 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 852 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 853 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path); 854 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 855 Opts.ModuleCachePruneInterval 856 = Args.getLastArgIntValue(OPT_fmodules_prune_interval, 7*24*60*60); 857 Opts.ModuleCachePruneAfter 858 = Args.getLastArgIntValue(OPT_fmodules_prune_after, 31*24*60*60); 859 for (arg_iterator it = Args.filtered_begin(OPT_fmodules_ignore_macro), 860 ie = Args.filtered_end(); it != ie; ++it) { 861 StringRef MacroDef = (*it)->getValue(); 862 Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first); 863 } 864 865 // Add -I..., -F..., and -index-header-map options in order. 866 bool IsIndexHeaderMap = false; 867 for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F, 868 OPT_index_header_map), 869 ie = Args.filtered_end(); it != ie; ++it) { 870 if ((*it)->getOption().matches(OPT_index_header_map)) { 871 // -index-header-map applies to the next -I or -F. 872 IsIndexHeaderMap = true; 873 continue; 874 } 875 876 frontend::IncludeDirGroup Group 877 = IsIndexHeaderMap? frontend::IndexHeaderMap : frontend::Angled; 878 879 Opts.AddPath((*it)->getValue(), Group, 880 /*IsFramework=*/ (*it)->getOption().matches(OPT_F), true); 881 IsIndexHeaderMap = false; 882 } 883 884 // Add -iprefix/-iwithprefix/-iwithprefixbefore options. 885 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 886 for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix, 887 OPT_iwithprefixbefore), 888 ie = Args.filtered_end(); it != ie; ++it) { 889 const Arg *A = *it; 890 if (A->getOption().matches(OPT_iprefix)) 891 Prefix = A->getValue(); 892 else if (A->getOption().matches(OPT_iwithprefix)) 893 Opts.AddPath(Prefix.str() + A->getValue(), 894 frontend::After, false, true); 895 else 896 Opts.AddPath(Prefix.str() + A->getValue(), 897 frontend::Angled, false, true); 898 } 899 900 for (arg_iterator it = Args.filtered_begin(OPT_idirafter), 901 ie = Args.filtered_end(); it != ie; ++it) 902 Opts.AddPath((*it)->getValue(), frontend::After, false, true); 903 for (arg_iterator it = Args.filtered_begin(OPT_iquote), 904 ie = Args.filtered_end(); it != ie; ++it) 905 Opts.AddPath((*it)->getValue(), frontend::Quoted, false, true); 906 for (arg_iterator it = Args.filtered_begin(OPT_isystem, 907 OPT_iwithsysroot), ie = Args.filtered_end(); it != ie; ++it) 908 Opts.AddPath((*it)->getValue(), frontend::System, false, 909 !(*it)->getOption().matches(OPT_iwithsysroot)); 910 for (arg_iterator it = Args.filtered_begin(OPT_iframework), 911 ie = Args.filtered_end(); it != ie; ++it) 912 Opts.AddPath((*it)->getValue(), frontend::System, true, true); 913 914 // Add the paths for the various language specific isystem flags. 915 for (arg_iterator it = Args.filtered_begin(OPT_c_isystem), 916 ie = Args.filtered_end(); it != ie; ++it) 917 Opts.AddPath((*it)->getValue(), frontend::CSystem, false, true); 918 for (arg_iterator it = Args.filtered_begin(OPT_cxx_isystem), 919 ie = Args.filtered_end(); it != ie; ++it) 920 Opts.AddPath((*it)->getValue(), frontend::CXXSystem, false, true); 921 for (arg_iterator it = Args.filtered_begin(OPT_objc_isystem), 922 ie = Args.filtered_end(); it != ie; ++it) 923 Opts.AddPath((*it)->getValue(), frontend::ObjCSystem, false,true); 924 for (arg_iterator it = Args.filtered_begin(OPT_objcxx_isystem), 925 ie = Args.filtered_end(); it != ie; ++it) 926 Opts.AddPath((*it)->getValue(), frontend::ObjCXXSystem, false, true); 927 928 // Add the internal paths from a driver that detects standard include paths. 929 for (arg_iterator I = Args.filtered_begin(OPT_internal_isystem, 930 OPT_internal_externc_isystem), 931 E = Args.filtered_end(); 932 I != E; ++I) { 933 frontend::IncludeDirGroup Group = frontend::System; 934 if ((*I)->getOption().matches(OPT_internal_externc_isystem)) 935 Group = frontend::ExternCSystem; 936 Opts.AddPath((*I)->getValue(), Group, false, true); 937 } 938 939 // Add the path prefixes which are implicitly treated as being system headers. 940 for (arg_iterator I = Args.filtered_begin(OPT_isystem_prefix, 941 OPT_ino_system_prefix), 942 E = Args.filtered_end(); 943 I != E; ++I) 944 Opts.AddSystemHeaderPrefix((*I)->getValue(), 945 (*I)->getOption().matches(OPT_isystem_prefix)); 946 } 947 948 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 949 LangStandard::Kind LangStd) { 950 // Set some properties which depend solely on the input kind; it would be nice 951 // to move these to the language standard, and have the driver resolve the 952 // input kind + language standard. 953 if (IK == IK_Asm) { 954 Opts.AsmPreprocessor = 1; 955 } else if (IK == IK_ObjC || 956 IK == IK_ObjCXX || 957 IK == IK_PreprocessedObjC || 958 IK == IK_PreprocessedObjCXX) { 959 Opts.ObjC1 = Opts.ObjC2 = 1; 960 } 961 962 if (LangStd == LangStandard::lang_unspecified) { 963 // Based on the base language, pick one. 964 switch (IK) { 965 case IK_None: 966 case IK_AST: 967 case IK_LLVM_IR: 968 llvm_unreachable("Invalid input kind!"); 969 case IK_OpenCL: 970 LangStd = LangStandard::lang_opencl; 971 break; 972 case IK_CUDA: 973 LangStd = LangStandard::lang_cuda; 974 break; 975 case IK_Asm: 976 case IK_C: 977 case IK_PreprocessedC: 978 case IK_ObjC: 979 case IK_PreprocessedObjC: 980 LangStd = LangStandard::lang_gnu99; 981 break; 982 case IK_CXX: 983 case IK_PreprocessedCXX: 984 case IK_ObjCXX: 985 case IK_PreprocessedObjCXX: 986 LangStd = LangStandard::lang_gnucxx98; 987 break; 988 } 989 } 990 991 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 992 Opts.LineComment = Std.hasLineComments(); 993 Opts.C99 = Std.isC99(); 994 Opts.C11 = Std.isC11(); 995 Opts.CPlusPlus = Std.isCPlusPlus(); 996 Opts.CPlusPlus11 = Std.isCPlusPlus11(); 997 Opts.CPlusPlus1y = Std.isCPlusPlus1y(); 998 Opts.Digraphs = Std.hasDigraphs(); 999 Opts.GNUMode = Std.isGNUMode(); 1000 Opts.GNUInline = !Std.isC99(); 1001 Opts.HexFloats = Std.hasHexFloats(); 1002 Opts.ImplicitInt = Std.hasImplicitInt(); 1003 1004 // Set OpenCL Version. 1005 if (LangStd == LangStandard::lang_opencl) { 1006 Opts.OpenCL = 1; 1007 Opts.OpenCLVersion = 100; 1008 } 1009 else if (LangStd == LangStandard::lang_opencl11) { 1010 Opts.OpenCL = 1; 1011 Opts.OpenCLVersion = 110; 1012 } 1013 else if (LangStd == LangStandard::lang_opencl12) { 1014 Opts.OpenCL = 1; 1015 Opts.OpenCLVersion = 120; 1016 } 1017 1018 // OpenCL has some additional defaults. 1019 if (Opts.OpenCL) { 1020 Opts.AltiVec = 0; 1021 Opts.CXXOperatorNames = 1; 1022 Opts.LaxVectorConversions = 0; 1023 Opts.DefaultFPContract = 1; 1024 Opts.NativeHalfType = 1; 1025 } 1026 1027 if (LangStd == LangStandard::lang_cuda) 1028 Opts.CUDA = 1; 1029 1030 // OpenCL and C++ both have bool, true, false keywords. 1031 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 1032 1033 // C++ has wchar_t keyword. 1034 Opts.WChar = Opts.CPlusPlus; 1035 1036 Opts.GNUKeywords = Opts.GNUMode; 1037 Opts.CXXOperatorNames = Opts.CPlusPlus; 1038 1039 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 1040 // is specified, or -std is set to a conforming mode. 1041 Opts.Trigraphs = !Opts.GNUMode; 1042 1043 Opts.DollarIdents = !Opts.AsmPreprocessor; 1044 } 1045 1046 /// Attempt to parse a visibility value out of the given argument. 1047 static Visibility parseVisibility(Arg *arg, ArgList &args, 1048 DiagnosticsEngine &diags) { 1049 StringRef value = arg->getValue(); 1050 if (value == "default") { 1051 return DefaultVisibility; 1052 } else if (value == "hidden") { 1053 return HiddenVisibility; 1054 } else if (value == "protected") { 1055 // FIXME: diagnose if target does not support protected visibility 1056 return ProtectedVisibility; 1057 } 1058 1059 diags.Report(diag::err_drv_invalid_value) 1060 << arg->getAsString(args) << value; 1061 return DefaultVisibility; 1062 } 1063 1064 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 1065 DiagnosticsEngine &Diags) { 1066 // FIXME: Cleanup per-file based stuff. 1067 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1068 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1069 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1070 #define LANGSTANDARD(id, name, desc, features) \ 1071 .Case(name, LangStandard::lang_##id) 1072 #include "clang/Frontend/LangStandards.def" 1073 .Default(LangStandard::lang_unspecified); 1074 if (LangStd == LangStandard::lang_unspecified) 1075 Diags.Report(diag::err_drv_invalid_value) 1076 << A->getAsString(Args) << A->getValue(); 1077 else { 1078 // Valid standard, check to make sure language and standard are compatable. 1079 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1080 switch (IK) { 1081 case IK_C: 1082 case IK_ObjC: 1083 case IK_PreprocessedC: 1084 case IK_PreprocessedObjC: 1085 if (!(Std.isC89() || Std.isC99())) 1086 Diags.Report(diag::err_drv_argument_not_allowed_with) 1087 << A->getAsString(Args) << "C/ObjC"; 1088 break; 1089 case IK_CXX: 1090 case IK_ObjCXX: 1091 case IK_PreprocessedCXX: 1092 case IK_PreprocessedObjCXX: 1093 if (!Std.isCPlusPlus()) 1094 Diags.Report(diag::err_drv_argument_not_allowed_with) 1095 << A->getAsString(Args) << "C++/ObjC++"; 1096 break; 1097 case IK_OpenCL: 1098 if (!Std.isC99()) 1099 Diags.Report(diag::err_drv_argument_not_allowed_with) 1100 << A->getAsString(Args) << "OpenCL"; 1101 break; 1102 case IK_CUDA: 1103 if (!Std.isCPlusPlus()) 1104 Diags.Report(diag::err_drv_argument_not_allowed_with) 1105 << A->getAsString(Args) << "CUDA"; 1106 break; 1107 default: 1108 break; 1109 } 1110 } 1111 } 1112 1113 // -cl-std only applies for OpenCL language standards. 1114 // Override the -std option in this case. 1115 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1116 LangStandard::Kind OpenCLLangStd 1117 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1118 .Case("CL", LangStandard::lang_opencl) 1119 .Case("CL1.1", LangStandard::lang_opencl11) 1120 .Case("CL1.2", LangStandard::lang_opencl12) 1121 .Default(LangStandard::lang_unspecified); 1122 1123 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1124 Diags.Report(diag::err_drv_invalid_value) 1125 << A->getAsString(Args) << A->getValue(); 1126 } 1127 else 1128 LangStd = OpenCLLangStd; 1129 } 1130 1131 CompilerInvocation::setLangDefaults(Opts, IK, LangStd); 1132 1133 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1134 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1135 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1136 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1137 // name, as it doesn't seem a useful distinction. 1138 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1139 Opts.GNUKeywords); 1140 1141 if (Args.hasArg(OPT_fno_operator_names)) 1142 Opts.CXXOperatorNames = 0; 1143 1144 if (Opts.ObjC1) { 1145 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1146 StringRef value = arg->getValue(); 1147 if (Opts.ObjCRuntime.tryParse(value)) 1148 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1149 } 1150 1151 if (Args.hasArg(OPT_fobjc_gc_only)) 1152 Opts.setGC(LangOptions::GCOnly); 1153 else if (Args.hasArg(OPT_fobjc_gc)) 1154 Opts.setGC(LangOptions::HybridGC); 1155 else if (Args.hasArg(OPT_fobjc_arc)) { 1156 Opts.ObjCAutoRefCount = 1; 1157 if (!Opts.ObjCRuntime.allowsARC()) 1158 Diags.Report(diag::err_arc_unsupported_on_runtime); 1159 1160 // Only set ObjCARCWeak if ARC is enabled. 1161 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1162 Opts.ObjCARCWeak = 1; 1163 else 1164 Opts.ObjCARCWeak = Opts.ObjCRuntime.allowsWeak(); 1165 } 1166 1167 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1168 Opts.ObjCInferRelatedResultType = 0; 1169 } 1170 1171 if (Args.hasArg(OPT_fgnu89_inline)) 1172 Opts.GNUInline = 1; 1173 1174 if (Args.hasArg(OPT_fapple_kext)) { 1175 if (!Opts.CPlusPlus) 1176 Diags.Report(diag::warn_c_kext); 1177 else 1178 Opts.AppleKext = 1; 1179 } 1180 1181 if (Args.hasArg(OPT_print_ivar_layout)) 1182 Opts.ObjCGCBitmapPrint = 1; 1183 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1184 Opts.NoConstantCFStrings = 1; 1185 1186 if (Args.hasArg(OPT_faltivec)) 1187 Opts.AltiVec = 1; 1188 1189 if (Args.hasArg(OPT_pthread)) 1190 Opts.POSIXThreads = 1; 1191 1192 // The value-visibility mode defaults to "default". 1193 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { 1194 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); 1195 } else { 1196 Opts.setValueVisibilityMode(DefaultVisibility); 1197 } 1198 1199 // The type-visibility mode defaults to the value-visibility mode. 1200 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { 1201 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); 1202 } else { 1203 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); 1204 } 1205 1206 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1207 Opts.InlineVisibilityHidden = 1; 1208 1209 if (Args.hasArg(OPT_ftrapv)) { 1210 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1211 // Set the handler, if one is specified. 1212 Opts.OverflowHandler = 1213 Args.getLastArgValue(OPT_ftrapv_handler); 1214 } 1215 else if (Args.hasArg(OPT_fwrapv)) 1216 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1217 1218 if (Args.hasArg(OPT_trigraphs)) 1219 Opts.Trigraphs = 1; 1220 1221 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1222 OPT_fno_dollars_in_identifiers, 1223 Opts.DollarIdents); 1224 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1225 Opts.MicrosoftExt 1226 = Args.hasArg(OPT_fms_extensions) || Args.hasArg(OPT_fms_compatibility); 1227 Opts.MicrosoftMode = Args.hasArg(OPT_fms_compatibility); 1228 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; 1229 Opts.MSCVersion = Args.getLastArgIntValue(OPT_fmsc_version, 0, Diags); 1230 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1231 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1232 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1233 Opts.ConstStrings); 1234 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1235 Opts.LaxVectorConversions = 0; 1236 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1237 Opts.ThreadsafeStatics = 0; 1238 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1239 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1240 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1241 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1242 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1243 1244 Opts.RTTI = !Args.hasArg(OPT_fno_rtti); 1245 Opts.Blocks = Args.hasArg(OPT_fblocks); 1246 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 1247 Opts.Modules = Args.hasArg(OPT_fmodules); 1248 Opts.CharIsSigned = !Args.hasArg(OPT_fno_signed_char); 1249 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 1250 Opts.ShortWChar = Args.hasArg(OPT_fshort_wchar); 1251 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 1252 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1253 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1254 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 1255 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1256 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1257 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1258 Opts.MathErrno = Args.hasArg(OPT_fmath_errno); 1259 Opts.InstantiationDepth = Args.getLastArgIntValue(OPT_ftemplate_depth, 256, 1260 Diags); 1261 Opts.ConstexprCallDepth = Args.getLastArgIntValue(OPT_fconstexpr_depth, 512, 1262 Diags); 1263 Opts.BracketDepth = Args.getLastArgIntValue(OPT_fbracket_depth, 256, Diags); 1264 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 1265 Opts.NumLargeByValueCopy = Args.getLastArgIntValue(OPT_Wlarge_by_value_copy_EQ, 1266 0, Diags); 1267 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 1268 Opts.ObjCConstantStringClass = 1269 Args.getLastArgValue(OPT_fconstant_string_class); 1270 Opts.ObjCDefaultSynthProperties = 1271 Args.hasArg(OPT_fobjc_default_synthesize_properties); 1272 Opts.EncodeExtendedBlockSig = 1273 Args.hasArg(OPT_fencode_extended_block_signature); 1274 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 1275 Opts.PackStruct = Args.getLastArgIntValue(OPT_fpack_struct_EQ, 0, Diags); 1276 Opts.PICLevel = Args.getLastArgIntValue(OPT_pic_level, 0, Diags); 1277 Opts.PIELevel = Args.getLastArgIntValue(OPT_pie_level, 0, Diags); 1278 Opts.Static = Args.hasArg(OPT_static_define); 1279 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 1280 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 1281 || Args.hasArg(OPT_fdump_record_layouts); 1282 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 1283 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 1284 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 1285 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 1286 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 1287 Opts.MRTD = Args.hasArg(OPT_mrtd); 1288 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 1289 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 1290 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 1291 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 1292 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 1293 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 1294 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 1295 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name); 1296 1297 // Check if -fopenmp is specified. 1298 Opts.OpenMP = Args.hasArg(OPT_fopenmp); 1299 1300 // Record whether the __DEPRECATED define was requested. 1301 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 1302 OPT_fno_deprecated_macro, 1303 Opts.Deprecated); 1304 1305 // FIXME: Eliminate this dependency. 1306 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 1307 OptSize = getOptimizationLevelSize(Args); 1308 Opts.Optimize = Opt != 0; 1309 Opts.OptimizeSize = OptSize != 0; 1310 1311 // This is the __NO_INLINE__ define, which just depends on things like the 1312 // optimization level and -fno-inline, not actually whether the backend has 1313 // inlining enabled. 1314 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); 1315 1316 Opts.FastMath = Args.hasArg(OPT_ffast_math) || 1317 isOptimizationLevelFast(Args); 1318 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only); 1319 1320 Opts.RetainCommentsFromSystemHeaders = 1321 Args.hasArg(OPT_fretain_comments_from_system_headers); 1322 1323 unsigned SSP = Args.getLastArgIntValue(OPT_stack_protector, 0, Diags); 1324 switch (SSP) { 1325 default: 1326 Diags.Report(diag::err_drv_invalid_value) 1327 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 1328 break; 1329 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 1330 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 1331 case 2: Opts.setStackProtector(LangOptions::SSPReq); break; 1332 } 1333 1334 // Parse -fsanitize= arguments. 1335 std::vector<std::string> Sanitizers = Args.getAllArgValues(OPT_fsanitize_EQ); 1336 for (unsigned I = 0, N = Sanitizers.size(); I != N; ++I) { 1337 // Since the Opts.Sanitize* values are bitfields, it's a little tricky to 1338 // efficiently map string values to them. Perform the mapping indirectly: 1339 // convert strings to enumerated values, then switch over the enum to set 1340 // the right bitfield value. 1341 enum Sanitizer { 1342 #define SANITIZER(NAME, ID) \ 1343 ID, 1344 #include "clang/Basic/Sanitizers.def" 1345 Unknown 1346 }; 1347 switch (llvm::StringSwitch<unsigned>(Sanitizers[I]) 1348 #define SANITIZER(NAME, ID) \ 1349 .Case(NAME, ID) 1350 #include "clang/Basic/Sanitizers.def" 1351 .Default(Unknown)) { 1352 #define SANITIZER(NAME, ID) \ 1353 case ID: \ 1354 Opts.Sanitize.ID = true; \ 1355 break; 1356 #include "clang/Basic/Sanitizers.def" 1357 1358 case Unknown: 1359 Diags.Report(diag::err_drv_invalid_value) 1360 << "-fsanitize=" << Sanitizers[I]; 1361 break; 1362 } 1363 } 1364 } 1365 1366 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 1367 FileManager &FileMgr, 1368 DiagnosticsEngine &Diags) { 1369 using namespace options; 1370 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 1371 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 1372 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 1373 Opts.TokenCache = A->getValue(); 1374 else 1375 Opts.TokenCache = Opts.ImplicitPTHInclude; 1376 Opts.UsePredefines = !Args.hasArg(OPT_undef); 1377 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 1378 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 1379 1380 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 1381 for (arg_iterator it = Args.filtered_begin(OPT_error_on_deserialized_pch_decl), 1382 ie = Args.filtered_end(); it != ie; ++it) { 1383 const Arg *A = *it; 1384 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 1385 } 1386 1387 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 1388 StringRef Value(A->getValue()); 1389 size_t Comma = Value.find(','); 1390 unsigned Bytes = 0; 1391 unsigned EndOfLine = 0; 1392 1393 if (Comma == StringRef::npos || 1394 Value.substr(0, Comma).getAsInteger(10, Bytes) || 1395 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 1396 Diags.Report(diag::err_drv_preamble_format); 1397 else { 1398 Opts.PrecompiledPreambleBytes.first = Bytes; 1399 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 1400 } 1401 } 1402 1403 // Add macros from the command line. 1404 for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U), 1405 ie = Args.filtered_end(); it != ie; ++it) { 1406 if ((*it)->getOption().matches(OPT_D)) 1407 Opts.addMacroDef((*it)->getValue()); 1408 else 1409 Opts.addMacroUndef((*it)->getValue()); 1410 } 1411 1412 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 1413 1414 // Add the ordered list of -includes. 1415 for (arg_iterator it = Args.filtered_begin(OPT_include), 1416 ie = Args.filtered_end(); it != ie; ++it) { 1417 const Arg *A = *it; 1418 Opts.Includes.push_back(A->getValue()); 1419 } 1420 1421 for (arg_iterator it = Args.filtered_begin(OPT_chain_include), 1422 ie = Args.filtered_end(); it != ie; ++it) { 1423 const Arg *A = *it; 1424 Opts.ChainedIncludes.push_back(A->getValue()); 1425 } 1426 1427 // Include 'altivec.h' if -faltivec option present 1428 if (Args.hasArg(OPT_faltivec)) 1429 Opts.Includes.push_back("altivec.h"); 1430 1431 for (arg_iterator it = Args.filtered_begin(OPT_remap_file), 1432 ie = Args.filtered_end(); it != ie; ++it) { 1433 const Arg *A = *it; 1434 std::pair<StringRef,StringRef> Split = 1435 StringRef(A->getValue()).split(';'); 1436 1437 if (Split.second.empty()) { 1438 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 1439 continue; 1440 } 1441 1442 Opts.addRemappedFile(Split.first, Split.second); 1443 } 1444 1445 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 1446 StringRef Name = A->getValue(); 1447 unsigned Library = llvm::StringSwitch<unsigned>(Name) 1448 .Case("libc++", ARCXX_libcxx) 1449 .Case("libstdc++", ARCXX_libstdcxx) 1450 .Case("none", ARCXX_nolib) 1451 .Default(~0U); 1452 if (Library == ~0U) 1453 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1454 else 1455 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 1456 } 1457 } 1458 1459 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 1460 ArgList &Args, 1461 frontend::ActionKind Action) { 1462 using namespace options; 1463 1464 switch (Action) { 1465 case frontend::ASTDeclList: 1466 case frontend::ASTDump: 1467 case frontend::ASTDumpXML: 1468 case frontend::ASTPrint: 1469 case frontend::ASTView: 1470 case frontend::EmitAssembly: 1471 case frontend::EmitBC: 1472 case frontend::EmitHTML: 1473 case frontend::EmitLLVM: 1474 case frontend::EmitLLVMOnly: 1475 case frontend::EmitCodeGenOnly: 1476 case frontend::EmitObj: 1477 case frontend::FixIt: 1478 case frontend::GenerateModule: 1479 case frontend::GeneratePCH: 1480 case frontend::GeneratePTH: 1481 case frontend::ParseSyntaxOnly: 1482 case frontend::ModuleFileInfo: 1483 case frontend::PluginAction: 1484 case frontend::PrintDeclContext: 1485 case frontend::RewriteObjC: 1486 case frontend::RewriteTest: 1487 case frontend::RunAnalysis: 1488 case frontend::MigrateSource: 1489 Opts.ShowCPP = 0; 1490 break; 1491 1492 case frontend::DumpRawTokens: 1493 case frontend::DumpTokens: 1494 case frontend::InitOnly: 1495 case frontend::PrintPreamble: 1496 case frontend::PrintPreprocessedInput: 1497 case frontend::RewriteMacros: 1498 case frontend::RunPreprocessorOnly: 1499 Opts.ShowCPP = !Args.hasArg(OPT_dM); 1500 break; 1501 } 1502 1503 Opts.ShowComments = Args.hasArg(OPT_C); 1504 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 1505 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 1506 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 1507 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 1508 } 1509 1510 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) { 1511 using namespace options; 1512 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 1513 Opts.CXXABI = Args.getLastArgValue(OPT_cxx_abi); 1514 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 1515 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 1516 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 1517 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 1518 1519 // Use the default target triple if unspecified. 1520 if (Opts.Triple.empty()) 1521 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 1522 } 1523 1524 // 1525 1526 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 1527 const char *const *ArgBegin, 1528 const char *const *ArgEnd, 1529 DiagnosticsEngine &Diags) { 1530 bool Success = true; 1531 1532 // Parse the arguments. 1533 OwningPtr<OptTable> Opts(createDriverOptTable()); 1534 unsigned MissingArgIndex, MissingArgCount; 1535 OwningPtr<InputArgList> Args( 1536 Opts->ParseArgs(ArgBegin, ArgEnd,MissingArgIndex, MissingArgCount)); 1537 1538 // Check for missing argument error. 1539 if (MissingArgCount) { 1540 Diags.Report(diag::err_drv_missing_argument) 1541 << Args->getArgString(MissingArgIndex) << MissingArgCount; 1542 Success = false; 1543 } 1544 1545 // Issue errors on unknown arguments. 1546 for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN), 1547 ie = Args->filtered_end(); it != ie; ++it) { 1548 Diags.Report(diag::err_drv_unknown_argument) << (*it)->getAsString(*Args); 1549 Success = false; 1550 } 1551 1552 // Issue errors on arguments that are not valid for CC1. 1553 for (ArgList::iterator I = Args->begin(), E = Args->end(); 1554 I != E; ++I) { 1555 if (!(*I)->getOption().hasFlag(options::CC1Option)) { 1556 Diags.Report(diag::err_drv_unknown_argument) << (*I)->getAsString(*Args); 1557 Success = false; 1558 } 1559 } 1560 1561 Success = ParseAnalyzerArgs(*Res.getAnalyzerOpts(), *Args, Diags) && Success; 1562 Success = ParseMigratorArgs(Res.getMigratorOpts(), *Args) && Success; 1563 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args); 1564 Success = ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, &Diags) 1565 && Success; 1566 ParseCommentArgs(Res.getLangOpts()->CommentOpts, *Args); 1567 ParseFileSystemArgs(Res.getFileSystemOpts(), *Args); 1568 // FIXME: We shouldn't have to pass the DashX option around here 1569 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags); 1570 Success = ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, DashX, Diags) 1571 && Success; 1572 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args); 1573 if (DashX != IK_AST && DashX != IK_LLVM_IR) { 1574 ParseLangArgs(*Res.getLangOpts(), *Args, DashX, Diags); 1575 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 1576 Res.getLangOpts()->ObjCExceptions = 1; 1577 } 1578 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 1579 // PCH file and find the original header name. Remove the need to do that in 1580 // ParsePreprocessorArgs and remove the FileManager 1581 // parameters from the function and the "FileManager.h" #include. 1582 FileManager FileMgr(Res.getFileSystemOpts()); 1583 ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, FileMgr, Diags); 1584 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args, 1585 Res.getFrontendOpts().ProgramAction); 1586 ParseTargetArgs(Res.getTargetOpts(), *Args); 1587 1588 return Success; 1589 } 1590 1591 namespace { 1592 1593 class ModuleSignature { 1594 SmallVector<uint64_t, 16> Data; 1595 unsigned CurBit; 1596 uint64_t CurValue; 1597 1598 public: 1599 ModuleSignature() : CurBit(0), CurValue(0) { } 1600 1601 void add(uint64_t Value, unsigned Bits); 1602 void add(StringRef Value); 1603 void flush(); 1604 1605 llvm::APInt getAsInteger() const; 1606 }; 1607 } 1608 1609 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) { 1610 CurValue |= Value << CurBit; 1611 if (CurBit + NumBits < 64) { 1612 CurBit += NumBits; 1613 return; 1614 } 1615 1616 // Add the current word. 1617 Data.push_back(CurValue); 1618 1619 if (CurBit) 1620 CurValue = Value >> (64-CurBit); 1621 else 1622 CurValue = 0; 1623 CurBit = (CurBit+NumBits) & 63; 1624 } 1625 1626 void ModuleSignature::flush() { 1627 if (CurBit == 0) 1628 return; 1629 1630 Data.push_back(CurValue); 1631 CurBit = 0; 1632 CurValue = 0; 1633 } 1634 1635 void ModuleSignature::add(StringRef Value) { 1636 for (StringRef::iterator I = Value.begin(), IEnd = Value.end(); I != IEnd;++I) 1637 add(*I, 8); 1638 } 1639 1640 llvm::APInt ModuleSignature::getAsInteger() const { 1641 return llvm::APInt(Data.size() * 64, Data); 1642 } 1643 1644 std::string CompilerInvocation::getModuleHash() const { 1645 // Note: For QoI reasons, the things we use as a hash here should all be 1646 // dumped via the -module-info flag. 1647 using llvm::hash_code; 1648 using llvm::hash_value; 1649 using llvm::hash_combine; 1650 1651 // Start the signature with the compiler version. 1652 // FIXME: We'd rather use something more cryptographically sound than 1653 // CityHash, but this will do for now. 1654 hash_code code = hash_value(getClangFullRepositoryVersion()); 1655 1656 // Extend the signature with the language options 1657 #define LANGOPT(Name, Bits, Default, Description) \ 1658 code = hash_combine(code, LangOpts->Name); 1659 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 1660 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 1661 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 1662 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 1663 #include "clang/Basic/LangOptions.def" 1664 1665 // Extend the signature with the target options. 1666 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 1667 TargetOpts->ABI, TargetOpts->CXXABI, 1668 TargetOpts->LinkerVersion); 1669 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 1670 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 1671 1672 // Extend the signature with preprocessor options. 1673 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 1674 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 1675 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 1676 1677 std::vector<StringRef> MacroDefs; 1678 for (std::vector<std::pair<std::string, bool/*isUndef*/> >::const_iterator 1679 I = getPreprocessorOpts().Macros.begin(), 1680 IEnd = getPreprocessorOpts().Macros.end(); 1681 I != IEnd; ++I) { 1682 // If we're supposed to ignore this macro for the purposes of modules, 1683 // don't put it into the hash. 1684 if (!hsOpts.ModulesIgnoreMacros.empty()) { 1685 // Check whether we're ignoring this macro. 1686 StringRef MacroDef = I->first; 1687 if (hsOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first)) 1688 continue; 1689 } 1690 1691 code = hash_combine(code, I->first, I->second); 1692 } 1693 1694 // Extend the signature with the sysroot. 1695 code = hash_combine(code, hsOpts.Sysroot, hsOpts.UseBuiltinIncludes, 1696 hsOpts.UseStandardSystemIncludes, 1697 hsOpts.UseStandardCXXIncludes, 1698 hsOpts.UseLibcxx); 1699 1700 // Darwin-specific hack: if we have a sysroot, use the contents of 1701 // $sysroot/System/Library/CoreServices/SystemVersion.plist 1702 // as part of the module hash. 1703 if (!hsOpts.Sysroot.empty()) { 1704 llvm::OwningPtr<llvm::MemoryBuffer> buffer; 1705 SmallString<128> systemVersionFile; 1706 systemVersionFile += hsOpts.Sysroot; 1707 llvm::sys::path::append(systemVersionFile, "System"); 1708 llvm::sys::path::append(systemVersionFile, "Library"); 1709 llvm::sys::path::append(systemVersionFile, "CoreServices"); 1710 llvm::sys::path::append(systemVersionFile, "SystemVersion.plist"); 1711 if (!llvm::MemoryBuffer::getFile(systemVersionFile, buffer)) { 1712 code = hash_combine(code, buffer.get()->getBuffer()); 1713 } 1714 } 1715 1716 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 1717 } 1718