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