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/Version.h" 13 #include "clang/Basic/FileManager.h" 14 #include "clang/Lex/HeaderSearchOptions.h" 15 #include "clang/Driver/Arg.h" 16 #include "clang/Driver/ArgList.h" 17 #include "clang/Driver/Options.h" 18 #include "clang/Driver/DriverDiagnostic.h" 19 #include "clang/Driver/OptTable.h" 20 #include "clang/Driver/Option.h" 21 #include "clang/Frontend/CompilerInvocation.h" 22 #include "clang/Frontend/LangStandard.h" 23 #include "clang/Serialization/ASTReader.h" 24 #include "llvm/ADT/Hashing.h" 25 #include "llvm/ADT/OwningPtr.h" 26 #include "llvm/ADT/SmallVector.h" 27 #include "llvm/ADT/StringExtras.h" 28 #include "llvm/ADT/StringSwitch.h" 29 #include "llvm/ADT/Triple.h" 30 #include "llvm/Support/ErrorHandling.h" 31 #include "llvm/Support/Host.h" 32 #include "llvm/Support/Path.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 assert (A->getOption().matches(options::OPT_O)); 73 74 llvm::StringRef S(A->getValue()); 75 if (S == "s" || S == "z" || S.empty()) 76 return 2; 77 78 return Args.getLastArgIntValue(OPT_O, DefaultOpt, Diags); 79 } 80 81 return DefaultOpt; 82 } 83 84 static unsigned getOptimizationLevelSize(ArgList &Args, InputKind IK, 85 DiagnosticsEngine &Diags) { 86 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 87 if (A->getOption().matches(options::OPT_O)) { 88 switch (A->getValue()[0]) { 89 default: 90 return 0; 91 case 's': 92 return 1; 93 case 'z': 94 return 2; 95 } 96 } 97 } 98 return 0; 99 } 100 101 static void addWarningArgs(ArgList &Args, std::vector<std::string> &Warnings) { 102 for (arg_iterator I = Args.filtered_begin(OPT_W_Group), 103 E = Args.filtered_end(); I != E; ++I) { 104 Arg *A = *I; 105 // If the argument is a pure flag, add its name (minus the "W" at the beginning) 106 // to the warning list. Else, add its value (for the OPT_W case). 107 if (A->getOption().getKind() == Option::FlagClass) { 108 Warnings.push_back(A->getOption().getName().substr(1)); 109 } else { 110 for (unsigned Idx = 0, End = A->getNumValues(); 111 Idx < End; ++Idx) { 112 StringRef V = A->getValue(Idx); 113 // "-Wl," and such are not warning options. 114 // FIXME: Should be handled by putting these in separate flags. 115 if (V.startswith("l,") || V.startswith("a,") || V.startswith("p,")) 116 continue; 117 118 Warnings.push_back(V); 119 } 120 } 121 } 122 } 123 124 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 125 DiagnosticsEngine &Diags) { 126 using namespace options; 127 bool Success = true; 128 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 129 StringRef Name = A->getValue(); 130 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 131 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 132 .Case(CMDFLAG, NAME##Model) 133 #include "clang/StaticAnalyzer/Core/Analyses.def" 134 .Default(NumStores); 135 if (Value == NumStores) { 136 Diags.Report(diag::err_drv_invalid_value) 137 << A->getAsString(Args) << Name; 138 Success = false; 139 } else { 140 Opts.AnalysisStoreOpt = Value; 141 } 142 } 143 144 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 145 StringRef Name = A->getValue(); 146 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 147 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 148 .Case(CMDFLAG, NAME##Model) 149 #include "clang/StaticAnalyzer/Core/Analyses.def" 150 .Default(NumConstraints); 151 if (Value == NumConstraints) { 152 Diags.Report(diag::err_drv_invalid_value) 153 << A->getAsString(Args) << Name; 154 Success = false; 155 } else { 156 Opts.AnalysisConstraintsOpt = Value; 157 } 158 } 159 160 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 161 StringRef Name = A->getValue(); 162 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 163 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREAT) \ 164 .Case(CMDFLAG, PD_##NAME) 165 #include "clang/StaticAnalyzer/Core/Analyses.def" 166 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 167 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 168 Diags.Report(diag::err_drv_invalid_value) 169 << A->getAsString(Args) << Name; 170 Success = false; 171 } else { 172 Opts.AnalysisDiagOpt = Value; 173 } 174 } 175 176 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 177 StringRef Name = A->getValue(); 178 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 179 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 180 .Case(CMDFLAG, NAME) 181 #include "clang/StaticAnalyzer/Core/Analyses.def" 182 .Default(NumPurgeModes); 183 if (Value == NumPurgeModes) { 184 Diags.Report(diag::err_drv_invalid_value) 185 << A->getAsString(Args) << Name; 186 Success = false; 187 } else { 188 Opts.AnalysisPurgeOpt = Value; 189 } 190 } 191 192 if (Arg *A = Args.getLastArg(OPT_analyzer_ipa)) { 193 StringRef Name = A->getValue(); 194 AnalysisIPAMode Value = llvm::StringSwitch<AnalysisIPAMode>(Name) 195 #define ANALYSIS_IPA(NAME, CMDFLAG, DESC) \ 196 .Case(CMDFLAG, NAME) 197 #include "clang/StaticAnalyzer/Core/Analyses.def" 198 .Default(NumIPAModes); 199 if (Value == NumIPAModes) { 200 Diags.Report(diag::err_drv_invalid_value) 201 << A->getAsString(Args) << Name; 202 Success = false; 203 } else { 204 Opts.IPAMode = Value; 205 } 206 } 207 208 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 209 StringRef Name = A->getValue(); 210 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 211 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 212 .Case(CMDFLAG, NAME) 213 #include "clang/StaticAnalyzer/Core/Analyses.def" 214 .Default(NumInliningModes); 215 if (Value == NumInliningModes) { 216 Diags.Report(diag::err_drv_invalid_value) 217 << A->getAsString(Args) << Name; 218 Success = false; 219 } else { 220 Opts.InliningMode = Value; 221 } 222 } 223 224 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 225 Opts.visualizeExplodedGraphWithGraphViz = 226 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 227 Opts.visualizeExplodedGraphWithUbiGraph = 228 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 229 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 230 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 231 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 232 Opts.AnalyzeNestedBlocks = 233 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 234 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 235 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 236 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 237 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 238 Opts.MaxNodes = Args.getLastArgIntValue(OPT_analyzer_max_nodes, 150000,Diags); 239 Opts.maxBlockVisitOnPath = Args.getLastArgIntValue(OPT_analyzer_max_loop, 4, Diags); 240 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 241 Opts.InlineMaxStackDepth = 242 Args.getLastArgIntValue(OPT_analyzer_inline_max_stack_depth, 243 Opts.InlineMaxStackDepth, Diags); 244 Opts.InlineMaxFunctionSize = 245 Args.getLastArgIntValue(OPT_analyzer_inline_max_function_size, 246 Opts.InlineMaxFunctionSize, Diags); 247 248 Opts.CheckersControlList.clear(); 249 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_checker, 250 OPT_analyzer_disable_checker), 251 ie = Args.filtered_end(); it != ie; ++it) { 252 const Arg *A = *it; 253 A->claim(); 254 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 255 // We can have a list of comma separated checker names, e.g: 256 // '-analyzer-checker=cocoa,unix' 257 StringRef checkerList = A->getValue(); 258 SmallVector<StringRef, 4> checkers; 259 checkerList.split(checkers, ","); 260 for (unsigned i = 0, e = checkers.size(); i != e; ++i) 261 Opts.CheckersControlList.push_back(std::make_pair(checkers[i], enable)); 262 } 263 264 // Go through the analyzer configuration options. 265 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_config), 266 ie = Args.filtered_end(); it != ie; ++it) { 267 const Arg *A = *it; 268 A->claim(); 269 // We can have a list of comma separated config names, e.g: 270 // '-analyzer-config key1=val1,key2=val2' 271 StringRef configList = A->getValue(); 272 SmallVector<StringRef, 4> configVals; 273 configList.split(configVals, ","); 274 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 275 StringRef key, val; 276 llvm::tie(key, val) = configVals[i].split("="); 277 if (val.empty()) { 278 Diags.Report(SourceLocation(), 279 diag::err_analyzer_config_no_value) << configVals[i]; 280 Success = false; 281 break; 282 } 283 if (val.find('=') != StringRef::npos) { 284 Diags.Report(SourceLocation(), 285 diag::err_analyzer_config_multiple_values) 286 << configVals[i]; 287 Success = false; 288 break; 289 } 290 Opts.Config[key] = val; 291 } 292 } 293 294 return Success; 295 } 296 297 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 298 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 299 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 300 return true; 301 } 302 303 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 304 DiagnosticsEngine &Diags) { 305 using namespace options; 306 bool Success = true; 307 308 unsigned OptLevel = getOptimizationLevel(Args, IK, Diags); 309 if (OptLevel > 3) { 310 Diags.Report(diag::err_drv_invalid_value) 311 << Args.getLastArg(OPT_O)->getAsString(Args) << OptLevel; 312 OptLevel = 3; 313 Success = false; 314 } 315 Opts.OptimizationLevel = OptLevel; 316 317 // We must always run at least the always inlining pass. 318 Opts.setInlining( 319 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining 320 : CodeGenOptions::OnlyAlwaysInlining); 321 // -fno-inline-functions overrides OptimizationLevel > 1. 322 Opts.NoInline = Args.hasArg(OPT_fno_inline); 323 Opts.setInlining(Args.hasArg(OPT_fno_inline_functions) ? 324 CodeGenOptions::OnlyAlwaysInlining : Opts.getInlining()); 325 326 if (Args.hasArg(OPT_gline_tables_only)) { 327 Opts.setDebugInfo(CodeGenOptions::DebugLineTablesOnly); 328 } else if (Args.hasArg(OPT_g_Flag)) { 329 if (Args.hasFlag(OPT_flimit_debug_info, OPT_fno_limit_debug_info, true)) 330 Opts.setDebugInfo(CodeGenOptions::LimitedDebugInfo); 331 else 332 Opts.setDebugInfo(CodeGenOptions::FullDebugInfo); 333 } 334 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 335 336 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); 337 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 338 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 339 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 340 OPT_fuse_register_sized_bitfield_access); 341 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 342 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 343 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 344 Opts.NoCommon = Args.hasArg(OPT_fno_common); 345 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 346 Opts.OptimizeSize = getOptimizationLevelSize(Args, IK, Diags); 347 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 348 Args.hasArg(OPT_ffreestanding)); 349 Opts.UnrollLoops = Args.hasArg(OPT_funroll_loops) || 350 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize); 351 352 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 353 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 354 Opts.CUDAIsDevice = Args.hasArg(OPT_fcuda_is_device); 355 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 356 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 357 Opts.CodeModel = Args.getLastArgValue(OPT_mcode_model); 358 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 359 Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim); 360 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 361 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 362 Opts.HiddenWeakVTables = Args.hasArg(OPT_fhidden_weak_vtables); 363 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 364 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 365 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 366 Args.hasArg(OPT_cl_finite_math_only)|| 367 Args.hasArg(OPT_cl_fast_relaxed_math)); 368 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 369 Args.hasArg(OPT_cl_finite_math_only)|| 370 Args.hasArg(OPT_cl_fast_relaxed_math)); 371 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 372 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 373 Opts.NumRegisterParameters = Args.getLastArgIntValue(OPT_mregparm, 0, Diags); 374 Opts.NoGlobalMerge = Args.hasArg(OPT_mno_global_merge); 375 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 376 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 377 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 378 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 379 Opts.NoDwarf2CFIAsm = Args.hasArg(OPT_fno_dwarf2_cfi_asm); 380 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 381 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 382 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 383 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 384 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 385 Args.hasArg(OPT_cl_fast_relaxed_math); 386 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 387 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 388 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 389 Opts.BoundsChecking = Args.getLastArgIntValue(OPT_fbounds_checking_EQ, 0, 390 Diags); 391 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 392 393 Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections); 394 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 395 396 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 397 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 398 399 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 400 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 401 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 402 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 403 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 404 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file); 405 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 406 Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file); 407 Opts.SSPBufferSize = 408 Args.getLastArgIntValue(OPT_stack_protector_buffer_size, 8, Diags); 409 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 410 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 411 StringRef Val = A->getValue(); 412 unsigned StackAlignment = Opts.StackAlignment; 413 Val.getAsInteger(10, StackAlignment); 414 Opts.StackAlignment = StackAlignment; 415 } 416 417 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 418 StringRef Name = A->getValue(); 419 unsigned Method = llvm::StringSwitch<unsigned>(Name) 420 .Case("legacy", CodeGenOptions::Legacy) 421 .Case("non-legacy", CodeGenOptions::NonLegacy) 422 .Case("mixed", CodeGenOptions::Mixed) 423 .Default(~0U); 424 if (Method == ~0U) { 425 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 426 Success = false; 427 } else { 428 Opts.setObjCDispatchMethod( 429 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 430 } 431 } 432 433 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 434 StringRef Name = A->getValue(); 435 unsigned Model = llvm::StringSwitch<unsigned>(Name) 436 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 437 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 438 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 439 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 440 .Default(~0U); 441 if (Model == ~0U) { 442 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 443 Success = false; 444 } else { 445 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 446 } 447 } 448 449 return Success; 450 } 451 452 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 453 ArgList &Args) { 454 using namespace options; 455 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 456 Opts.Targets = Args.getAllArgValues(OPT_MT); 457 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 458 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 459 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 460 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 461 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 462 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 463 } 464 465 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 466 DiagnosticsEngine *Diags) { 467 using namespace options; 468 bool Success = true; 469 470 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 471 Opts.DiagnosticSerializationFile = 472 Args.getLastArgValue(OPT_diagnostic_serialized_file); 473 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 474 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 475 Opts.Pedantic = Args.hasArg(OPT_pedantic); 476 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 477 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 478 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics); 479 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 480 OPT_fno_show_column, 481 /*Default=*/true); 482 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 483 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 484 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option); 485 486 // Default behavior is to not to show note include stacks. 487 Opts.ShowNoteIncludeStack = false; 488 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 489 OPT_fno_diagnostics_show_note_include_stack)) 490 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 491 Opts.ShowNoteIncludeStack = true; 492 493 StringRef ShowOverloads = 494 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 495 if (ShowOverloads == "best") 496 Opts.setShowOverloads(Ovl_Best); 497 else if (ShowOverloads == "all") 498 Opts.setShowOverloads(Ovl_All); 499 else { 500 Success = false; 501 if (Diags) 502 Diags->Report(diag::err_drv_invalid_value) 503 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 504 << ShowOverloads; 505 } 506 507 StringRef ShowCategory = 508 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 509 if (ShowCategory == "none") 510 Opts.ShowCategories = 0; 511 else if (ShowCategory == "id") 512 Opts.ShowCategories = 1; 513 else if (ShowCategory == "name") 514 Opts.ShowCategories = 2; 515 else { 516 Success = false; 517 if (Diags) 518 Diags->Report(diag::err_drv_invalid_value) 519 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 520 << ShowCategory; 521 } 522 523 StringRef Format = 524 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 525 if (Format == "clang") 526 Opts.setFormat(DiagnosticOptions::Clang); 527 else if (Format == "msvc") 528 Opts.setFormat(DiagnosticOptions::Msvc); 529 else if (Format == "vi") 530 Opts.setFormat(DiagnosticOptions::Vi); 531 else { 532 Success = false; 533 if (Diags) 534 Diags->Report(diag::err_drv_invalid_value) 535 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 536 << Format; 537 } 538 539 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 540 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 541 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 542 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 543 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 544 Opts.ErrorLimit = Args.getLastArgIntValue(OPT_ferror_limit, 0, Diags); 545 Opts.MacroBacktraceLimit 546 = Args.getLastArgIntValue(OPT_fmacro_backtrace_limit, 547 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 548 Opts.TemplateBacktraceLimit 549 = Args.getLastArgIntValue(OPT_ftemplate_backtrace_limit, 550 DiagnosticOptions::DefaultTemplateBacktraceLimit, 551 Diags); 552 Opts.ConstexprBacktraceLimit 553 = Args.getLastArgIntValue(OPT_fconstexpr_backtrace_limit, 554 DiagnosticOptions::DefaultConstexprBacktraceLimit, 555 Diags); 556 Opts.TabStop = Args.getLastArgIntValue(OPT_ftabstop, 557 DiagnosticOptions::DefaultTabStop, Diags); 558 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 559 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 560 if (Diags) 561 Diags->Report(diag::warn_ignoring_ftabstop_value) 562 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 563 } 564 Opts.MessageLength = Args.getLastArgIntValue(OPT_fmessage_length, 0, Diags); 565 Opts.DumpBuildInformation = Args.getLastArgValue(OPT_dump_build_information); 566 addWarningArgs(Args, Opts.Warnings); 567 568 return Success; 569 } 570 571 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 572 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 573 } 574 575 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 576 DiagnosticsEngine &Diags) { 577 using namespace options; 578 Opts.ProgramAction = frontend::ParseSyntaxOnly; 579 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 580 switch (A->getOption().getID()) { 581 default: 582 llvm_unreachable("Invalid option in group!"); 583 case OPT_ast_list: 584 Opts.ProgramAction = frontend::ASTDeclList; break; 585 case OPT_ast_dump: 586 Opts.ProgramAction = frontend::ASTDump; break; 587 case OPT_ast_dump_xml: 588 Opts.ProgramAction = frontend::ASTDumpXML; break; 589 case OPT_ast_print: 590 Opts.ProgramAction = frontend::ASTPrint; break; 591 case OPT_ast_view: 592 Opts.ProgramAction = frontend::ASTView; break; 593 case OPT_dump_raw_tokens: 594 Opts.ProgramAction = frontend::DumpRawTokens; break; 595 case OPT_dump_tokens: 596 Opts.ProgramAction = frontend::DumpTokens; break; 597 case OPT_S: 598 Opts.ProgramAction = frontend::EmitAssembly; break; 599 case OPT_emit_llvm_bc: 600 Opts.ProgramAction = frontend::EmitBC; break; 601 case OPT_emit_html: 602 Opts.ProgramAction = frontend::EmitHTML; break; 603 case OPT_emit_llvm: 604 Opts.ProgramAction = frontend::EmitLLVM; break; 605 case OPT_emit_llvm_only: 606 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 607 case OPT_emit_codegen_only: 608 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 609 case OPT_emit_obj: 610 Opts.ProgramAction = frontend::EmitObj; break; 611 case OPT_fixit_EQ: 612 Opts.FixItSuffix = A->getValue(); 613 // fall-through! 614 case OPT_fixit: 615 Opts.ProgramAction = frontend::FixIt; break; 616 case OPT_emit_module: 617 Opts.ProgramAction = frontend::GenerateModule; break; 618 case OPT_emit_pch: 619 Opts.ProgramAction = frontend::GeneratePCH; break; 620 case OPT_emit_pth: 621 Opts.ProgramAction = frontend::GeneratePTH; break; 622 case OPT_init_only: 623 Opts.ProgramAction = frontend::InitOnly; break; 624 case OPT_fsyntax_only: 625 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 626 case OPT_print_decl_contexts: 627 Opts.ProgramAction = frontend::PrintDeclContext; break; 628 case OPT_print_preamble: 629 Opts.ProgramAction = frontend::PrintPreamble; break; 630 case OPT_E: 631 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 632 case OPT_rewrite_macros: 633 Opts.ProgramAction = frontend::RewriteMacros; break; 634 case OPT_rewrite_objc: 635 Opts.ProgramAction = frontend::RewriteObjC; break; 636 case OPT_rewrite_test: 637 Opts.ProgramAction = frontend::RewriteTest; break; 638 case OPT_analyze: 639 Opts.ProgramAction = frontend::RunAnalysis; break; 640 case OPT_migrate: 641 Opts.ProgramAction = frontend::MigrateSource; break; 642 case OPT_Eonly: 643 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 644 } 645 } 646 647 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 648 Opts.Plugins.push_back(A->getValue(0)); 649 Opts.ProgramAction = frontend::PluginAction; 650 Opts.ActionName = A->getValue(); 651 652 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 653 end = Args.filtered_end(); it != end; ++it) { 654 if ((*it)->getValue(0) == Opts.ActionName) 655 Opts.PluginArgs.push_back((*it)->getValue(1)); 656 } 657 } 658 659 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 660 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size()); 661 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) { 662 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 663 end = Args.filtered_end(); it != end; ++it) { 664 if ((*it)->getValue(0) == Opts.AddPluginActions[i]) 665 Opts.AddPluginArgs[i].push_back((*it)->getValue(1)); 666 } 667 } 668 669 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 670 Opts.CodeCompletionAt = 671 ParsedSourceLocation::FromString(A->getValue()); 672 if (Opts.CodeCompletionAt.FileName.empty()) 673 Diags.Report(diag::err_drv_invalid_value) 674 << A->getAsString(Args) << A->getValue(); 675 } 676 Opts.DisableFree = Args.hasArg(OPT_disable_free); 677 678 Opts.OutputFile = Args.getLastArgValue(OPT_o); 679 Opts.Plugins = Args.getAllArgValues(OPT_load); 680 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 681 Opts.ShowHelp = Args.hasArg(OPT_help); 682 Opts.ShowStats = Args.hasArg(OPT_print_stats); 683 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 684 Opts.ShowVersion = Args.hasArg(OPT_version); 685 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 686 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 687 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 688 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 689 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 690 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 691 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 692 693 Opts.CodeCompleteOpts.IncludeMacros 694 = Args.hasArg(OPT_code_completion_macros); 695 Opts.CodeCompleteOpts.IncludeCodePatterns 696 = Args.hasArg(OPT_code_completion_patterns); 697 Opts.CodeCompleteOpts.IncludeGlobals 698 = !Args.hasArg(OPT_no_code_completion_globals); 699 Opts.CodeCompleteOpts.IncludeBriefComments 700 = Args.hasArg(OPT_code_completion_brief_comments); 701 702 Opts.OverrideRecordLayoutsFile 703 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 704 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 705 OPT_arcmt_modify, 706 OPT_arcmt_migrate)) { 707 switch (A->getOption().getID()) { 708 default: 709 llvm_unreachable("missed a case"); 710 case OPT_arcmt_check: 711 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 712 break; 713 case OPT_arcmt_modify: 714 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 715 break; 716 case OPT_arcmt_migrate: 717 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 718 break; 719 } 720 } 721 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 722 Opts.ARCMTMigrateReportOut 723 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 724 Opts.ARCMTMigrateEmitARCErrors 725 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 726 727 if (Args.hasArg(OPT_objcmt_migrate_literals)) 728 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 729 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 730 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 731 732 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 733 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 734 Diags.Report(diag::err_drv_argument_not_allowed_with) 735 << "ARC migration" << "ObjC migration"; 736 } 737 738 InputKind DashX = IK_None; 739 if (const Arg *A = Args.getLastArg(OPT_x)) { 740 DashX = llvm::StringSwitch<InputKind>(A->getValue()) 741 .Case("c", IK_C) 742 .Case("cl", IK_OpenCL) 743 .Case("cuda", IK_CUDA) 744 .Case("c++", IK_CXX) 745 .Case("objective-c", IK_ObjC) 746 .Case("objective-c++", IK_ObjCXX) 747 .Case("cpp-output", IK_PreprocessedC) 748 .Case("assembler-with-cpp", IK_Asm) 749 .Case("c++-cpp-output", IK_PreprocessedCXX) 750 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 751 .Case("objc-cpp-output", IK_PreprocessedObjC) 752 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 753 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 754 .Case("c-header", IK_C) 755 .Case("cl-header", IK_OpenCL) 756 .Case("objective-c-header", IK_ObjC) 757 .Case("c++-header", IK_CXX) 758 .Case("objective-c++-header", IK_ObjCXX) 759 .Case("ast", IK_AST) 760 .Case("ir", IK_LLVM_IR) 761 .Default(IK_None); 762 if (DashX == IK_None) 763 Diags.Report(diag::err_drv_invalid_value) 764 << A->getAsString(Args) << A->getValue(); 765 } 766 767 // '-' is the default input if none is given. 768 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 769 Opts.Inputs.clear(); 770 if (Inputs.empty()) 771 Inputs.push_back("-"); 772 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 773 InputKind IK = DashX; 774 if (IK == IK_None) { 775 IK = FrontendOptions::getInputKindForExtension( 776 StringRef(Inputs[i]).rsplit('.').second); 777 // FIXME: Remove this hack. 778 if (i == 0) 779 DashX = IK; 780 } 781 Opts.Inputs.push_back(FrontendInputFile(Inputs[i], IK)); 782 } 783 784 return DashX; 785 } 786 787 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 788 void *MainAddr) { 789 llvm::sys::Path P = llvm::sys::Path::GetMainExecutable(Argv0, MainAddr); 790 791 if (!P.isEmpty()) { 792 P.eraseComponent(); // Remove /clang from foo/bin/clang 793 P.eraseComponent(); // Remove /bin from foo/bin 794 795 // Get foo/lib/clang/<version>/include 796 P.appendComponent("lib"); 797 P.appendComponent("clang"); 798 P.appendComponent(CLANG_VERSION_STRING); 799 } 800 801 return P.str(); 802 } 803 804 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 805 using namespace options; 806 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 807 Opts.Verbose = Args.hasArg(OPT_v); 808 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 809 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 810 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 811 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 812 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); 813 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 814 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodule_cache_path); 815 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 816 817 // Add -I..., -F..., and -index-header-map options in order. 818 bool IsIndexHeaderMap = false; 819 for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F, 820 OPT_index_header_map), 821 ie = Args.filtered_end(); it != ie; ++it) { 822 if ((*it)->getOption().matches(OPT_index_header_map)) { 823 // -index-header-map applies to the next -I or -F. 824 IsIndexHeaderMap = true; 825 continue; 826 } 827 828 frontend::IncludeDirGroup Group 829 = IsIndexHeaderMap? frontend::IndexHeaderMap : frontend::Angled; 830 831 Opts.AddPath((*it)->getValue(), Group, true, 832 /*IsFramework=*/ (*it)->getOption().matches(OPT_F), false); 833 IsIndexHeaderMap = false; 834 } 835 836 // Add -iprefix/-iwith-prefix/-iwithprefixbefore options. 837 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 838 for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix, 839 OPT_iwithprefixbefore), 840 ie = Args.filtered_end(); it != ie; ++it) { 841 const Arg *A = *it; 842 if (A->getOption().matches(OPT_iprefix)) 843 Prefix = A->getValue(); 844 else if (A->getOption().matches(OPT_iwithprefix)) 845 Opts.AddPath(Prefix.str() + A->getValue(), 846 frontend::System, false, false, false); 847 else 848 Opts.AddPath(Prefix.str() + A->getValue(), 849 frontend::Angled, false, false, false); 850 } 851 852 for (arg_iterator it = Args.filtered_begin(OPT_idirafter), 853 ie = Args.filtered_end(); it != ie; ++it) 854 Opts.AddPath((*it)->getValue(), frontend::After, true, false, false); 855 for (arg_iterator it = Args.filtered_begin(OPT_iquote), 856 ie = Args.filtered_end(); it != ie; ++it) 857 Opts.AddPath((*it)->getValue(), frontend::Quoted, true, false, false); 858 for (arg_iterator it = Args.filtered_begin(OPT_isystem, 859 OPT_iwithsysroot), ie = Args.filtered_end(); it != ie; ++it) 860 Opts.AddPath((*it)->getValue(), frontend::System, true, false, 861 !(*it)->getOption().matches(OPT_iwithsysroot)); 862 for (arg_iterator it = Args.filtered_begin(OPT_iframework), 863 ie = Args.filtered_end(); it != ie; ++it) 864 Opts.AddPath((*it)->getValue(), frontend::System, true, true, 865 true); 866 867 // Add the paths for the various language specific isystem flags. 868 for (arg_iterator it = Args.filtered_begin(OPT_c_isystem), 869 ie = Args.filtered_end(); it != ie; ++it) 870 Opts.AddPath((*it)->getValue(), frontend::CSystem, true, false, true); 871 for (arg_iterator it = Args.filtered_begin(OPT_cxx_isystem), 872 ie = Args.filtered_end(); it != ie; ++it) 873 Opts.AddPath((*it)->getValue(), frontend::CXXSystem, true, false, true); 874 for (arg_iterator it = Args.filtered_begin(OPT_objc_isystem), 875 ie = Args.filtered_end(); it != ie; ++it) 876 Opts.AddPath((*it)->getValue(), frontend::ObjCSystem, true, false,true); 877 for (arg_iterator it = Args.filtered_begin(OPT_objcxx_isystem), 878 ie = Args.filtered_end(); it != ie; ++it) 879 Opts.AddPath((*it)->getValue(), frontend::ObjCXXSystem, true, false, 880 true); 881 882 // Add the internal paths from a driver that detects standard include paths. 883 for (arg_iterator I = Args.filtered_begin(OPT_internal_isystem, 884 OPT_internal_externc_isystem), 885 E = Args.filtered_end(); 886 I != E; ++I) 887 Opts.AddPath((*I)->getValue(), frontend::System, 888 false, false, /*IgnoreSysRoot=*/true, /*IsInternal=*/true, 889 (*I)->getOption().matches(OPT_internal_externc_isystem)); 890 891 // Add the path prefixes which are implicitly treated as being system headers. 892 for (arg_iterator I = Args.filtered_begin(OPT_isystem_prefix, 893 OPT_ino_system_prefix), 894 E = Args.filtered_end(); 895 I != E; ++I) 896 Opts.AddSystemHeaderPrefix((*I)->getValue(), 897 (*I)->getOption().matches(OPT_isystem_prefix)); 898 } 899 900 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 901 LangStandard::Kind LangStd) { 902 // Set some properties which depend solely on the input kind; it would be nice 903 // to move these to the language standard, and have the driver resolve the 904 // input kind + language standard. 905 if (IK == IK_Asm) { 906 Opts.AsmPreprocessor = 1; 907 } else if (IK == IK_ObjC || 908 IK == IK_ObjCXX || 909 IK == IK_PreprocessedObjC || 910 IK == IK_PreprocessedObjCXX) { 911 Opts.ObjC1 = Opts.ObjC2 = 1; 912 } 913 914 if (LangStd == LangStandard::lang_unspecified) { 915 // Based on the base language, pick one. 916 switch (IK) { 917 case IK_None: 918 case IK_AST: 919 case IK_LLVM_IR: 920 llvm_unreachable("Invalid input kind!"); 921 case IK_OpenCL: 922 LangStd = LangStandard::lang_opencl; 923 break; 924 case IK_CUDA: 925 LangStd = LangStandard::lang_cuda; 926 break; 927 case IK_Asm: 928 case IK_C: 929 case IK_PreprocessedC: 930 case IK_ObjC: 931 case IK_PreprocessedObjC: 932 LangStd = LangStandard::lang_gnu99; 933 break; 934 case IK_CXX: 935 case IK_PreprocessedCXX: 936 case IK_ObjCXX: 937 case IK_PreprocessedObjCXX: 938 LangStd = LangStandard::lang_gnucxx98; 939 break; 940 } 941 } 942 943 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 944 Opts.BCPLComment = Std.hasBCPLComments(); 945 Opts.C99 = Std.isC99(); 946 Opts.C11 = Std.isC11(); 947 Opts.CPlusPlus = Std.isCPlusPlus(); 948 Opts.CPlusPlus0x = Std.isCPlusPlus0x(); 949 Opts.CPlusPlus1y = Std.isCPlusPlus1y(); 950 Opts.Digraphs = Std.hasDigraphs(); 951 Opts.GNUMode = Std.isGNUMode(); 952 Opts.GNUInline = !Std.isC99(); 953 Opts.HexFloats = Std.hasHexFloats(); 954 Opts.ImplicitInt = Std.hasImplicitInt(); 955 956 // Set OpenCL Version. 957 if (LangStd == LangStandard::lang_opencl) { 958 Opts.OpenCL = 1; 959 Opts.OpenCLVersion = 100; 960 } 961 else if (LangStd == LangStandard::lang_opencl11) { 962 Opts.OpenCL = 1; 963 Opts.OpenCLVersion = 110; 964 } 965 else if (LangStd == LangStandard::lang_opencl12) { 966 Opts.OpenCL = 1; 967 Opts.OpenCLVersion = 120; 968 } 969 970 // OpenCL has some additional defaults. 971 if (Opts.OpenCL) { 972 Opts.AltiVec = 0; 973 Opts.CXXOperatorNames = 1; 974 Opts.LaxVectorConversions = 0; 975 Opts.DefaultFPContract = 1; 976 } 977 978 if (LangStd == LangStandard::lang_cuda) 979 Opts.CUDA = 1; 980 981 // OpenCL and C++ both have bool, true, false keywords. 982 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 983 984 // C++ has wchar_t keyword. 985 Opts.WChar = Opts.CPlusPlus; 986 987 Opts.GNUKeywords = Opts.GNUMode; 988 Opts.CXXOperatorNames = Opts.CPlusPlus; 989 990 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 991 // is specified, or -std is set to a conforming mode. 992 Opts.Trigraphs = !Opts.GNUMode; 993 994 Opts.DollarIdents = !Opts.AsmPreprocessor; 995 } 996 997 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 998 DiagnosticsEngine &Diags) { 999 // FIXME: Cleanup per-file based stuff. 1000 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 1001 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1002 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1003 #define LANGSTANDARD(id, name, desc, features) \ 1004 .Case(name, LangStandard::lang_##id) 1005 #include "clang/Frontend/LangStandards.def" 1006 .Default(LangStandard::lang_unspecified); 1007 if (LangStd == LangStandard::lang_unspecified) 1008 Diags.Report(diag::err_drv_invalid_value) 1009 << A->getAsString(Args) << A->getValue(); 1010 else { 1011 // Valid standard, check to make sure language and standard are compatable. 1012 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1013 switch (IK) { 1014 case IK_C: 1015 case IK_ObjC: 1016 case IK_PreprocessedC: 1017 case IK_PreprocessedObjC: 1018 if (!(Std.isC89() || Std.isC99())) 1019 Diags.Report(diag::err_drv_argument_not_allowed_with) 1020 << A->getAsString(Args) << "C/ObjC"; 1021 break; 1022 case IK_CXX: 1023 case IK_ObjCXX: 1024 case IK_PreprocessedCXX: 1025 case IK_PreprocessedObjCXX: 1026 if (!Std.isCPlusPlus()) 1027 Diags.Report(diag::err_drv_argument_not_allowed_with) 1028 << A->getAsString(Args) << "C++/ObjC++"; 1029 break; 1030 case IK_OpenCL: 1031 if (!Std.isC99()) 1032 Diags.Report(diag::err_drv_argument_not_allowed_with) 1033 << A->getAsString(Args) << "OpenCL"; 1034 break; 1035 case IK_CUDA: 1036 if (!Std.isCPlusPlus()) 1037 Diags.Report(diag::err_drv_argument_not_allowed_with) 1038 << A->getAsString(Args) << "CUDA"; 1039 break; 1040 default: 1041 break; 1042 } 1043 } 1044 } 1045 1046 // -cl-std only applies for OpenCL language standards. 1047 // Override the -std option in this case. 1048 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1049 LangStandard::Kind OpenCLLangStd 1050 = llvm::StringSwitch<LangStandard::Kind>(A->getValue()) 1051 .Case("CL", LangStandard::lang_opencl) 1052 .Case("CL1.1", LangStandard::lang_opencl11) 1053 .Case("CL1.2", LangStandard::lang_opencl12) 1054 .Default(LangStandard::lang_unspecified); 1055 1056 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1057 Diags.Report(diag::err_drv_invalid_value) 1058 << A->getAsString(Args) << A->getValue(); 1059 } 1060 else 1061 LangStd = OpenCLLangStd; 1062 } 1063 1064 CompilerInvocation::setLangDefaults(Opts, IK, LangStd); 1065 1066 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1067 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1068 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1069 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1070 // name, as it doesn't seem a useful distinction. 1071 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1072 Opts.GNUKeywords); 1073 1074 if (Args.hasArg(OPT_fno_operator_names)) 1075 Opts.CXXOperatorNames = 0; 1076 1077 if (Opts.ObjC1) { 1078 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1079 StringRef value = arg->getValue(); 1080 if (Opts.ObjCRuntime.tryParse(value)) 1081 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1082 } 1083 1084 if (Args.hasArg(OPT_fobjc_gc_only)) 1085 Opts.setGC(LangOptions::GCOnly); 1086 else if (Args.hasArg(OPT_fobjc_gc)) 1087 Opts.setGC(LangOptions::HybridGC); 1088 else if (Args.hasArg(OPT_fobjc_arc)) { 1089 Opts.ObjCAutoRefCount = 1; 1090 if (!Opts.ObjCRuntime.allowsARC()) 1091 Diags.Report(diag::err_arc_unsupported_on_runtime); 1092 1093 // Only set ObjCARCWeak if ARC is enabled. 1094 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1095 Opts.ObjCARCWeak = 1; 1096 else 1097 Opts.ObjCARCWeak = Opts.ObjCRuntime.allowsWeak(); 1098 } 1099 1100 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1101 Opts.ObjCInferRelatedResultType = 0; 1102 } 1103 1104 if (Args.hasArg(OPT_fgnu89_inline)) 1105 Opts.GNUInline = 1; 1106 1107 if (Args.hasArg(OPT_fapple_kext)) { 1108 if (!Opts.CPlusPlus) 1109 Diags.Report(diag::warn_c_kext); 1110 else 1111 Opts.AppleKext = 1; 1112 } 1113 1114 if (Args.hasArg(OPT_print_ivar_layout)) 1115 Opts.ObjCGCBitmapPrint = 1; 1116 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1117 Opts.NoConstantCFStrings = 1; 1118 1119 if (Args.hasArg(OPT_faltivec)) 1120 Opts.AltiVec = 1; 1121 1122 if (Args.hasArg(OPT_pthread)) 1123 Opts.POSIXThreads = 1; 1124 1125 if (Args.hasArg(OPT_fdelayed_template_parsing)) 1126 Opts.DelayedTemplateParsing = 1; 1127 1128 StringRef Vis = Args.getLastArgValue(OPT_fvisibility, "default"); 1129 if (Vis == "default") 1130 Opts.setVisibilityMode(DefaultVisibility); 1131 else if (Vis == "hidden") 1132 Opts.setVisibilityMode(HiddenVisibility); 1133 else if (Vis == "protected") 1134 // FIXME: diagnose if target does not support protected visibility 1135 Opts.setVisibilityMode(ProtectedVisibility); 1136 else 1137 Diags.Report(diag::err_drv_invalid_value) 1138 << Args.getLastArg(OPT_fvisibility)->getAsString(Args) << Vis; 1139 1140 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 1141 StringRef Val = A->getValue(); 1142 if (Val == "fast") 1143 Opts.setFPContractMode(LangOptions::FPC_Fast); 1144 else if (Val == "on") 1145 Opts.setFPContractMode(LangOptions::FPC_On); 1146 else if (Val == "off") 1147 Opts.setFPContractMode(LangOptions::FPC_Off); 1148 else 1149 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1150 } 1151 1152 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1153 Opts.InlineVisibilityHidden = 1; 1154 1155 if (Args.hasArg(OPT_ftrapv)) { 1156 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1157 // Set the handler, if one is specified. 1158 Opts.OverflowHandler = 1159 Args.getLastArgValue(OPT_ftrapv_handler); 1160 } 1161 else if (Args.hasArg(OPT_fwrapv)) 1162 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1163 1164 if (Args.hasArg(OPT_trigraphs)) 1165 Opts.Trigraphs = 1; 1166 1167 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1168 OPT_fno_dollars_in_identifiers, 1169 Opts.DollarIdents); 1170 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1171 Opts.MicrosoftExt 1172 = Args.hasArg(OPT_fms_extensions) || Args.hasArg(OPT_fms_compatibility); 1173 Opts.MicrosoftMode = Args.hasArg(OPT_fms_compatibility); 1174 Opts.MSCVersion = Args.getLastArgIntValue(OPT_fmsc_version, 0, Diags); 1175 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1176 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1177 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1178 Opts.ConstStrings); 1179 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1180 Opts.LaxVectorConversions = 0; 1181 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1182 Opts.ThreadsafeStatics = 0; 1183 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1184 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1185 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1186 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1187 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1188 1189 Opts.RTTI = !Args.hasArg(OPT_fno_rtti); 1190 Opts.Blocks = Args.hasArg(OPT_fblocks); 1191 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 1192 Opts.Modules = Args.hasArg(OPT_fmodules); 1193 Opts.CharIsSigned = !Args.hasArg(OPT_fno_signed_char); 1194 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 1195 Opts.ShortWChar = Args.hasArg(OPT_fshort_wchar); 1196 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 1197 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1198 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1199 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 1200 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1201 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1202 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1203 Opts.MathErrno = Args.hasArg(OPT_fmath_errno); 1204 Opts.InstantiationDepth = Args.getLastArgIntValue(OPT_ftemplate_depth, 512, 1205 Diags); 1206 Opts.ConstexprCallDepth = Args.getLastArgIntValue(OPT_fconstexpr_depth, 512, 1207 Diags); 1208 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 1209 Opts.NumLargeByValueCopy = Args.getLastArgIntValue(OPT_Wlarge_by_value_copy_EQ, 1210 0, Diags); 1211 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 1212 Opts.ObjCConstantStringClass = 1213 Args.getLastArgValue(OPT_fconstant_string_class); 1214 Opts.ObjCDefaultSynthProperties = 1215 Args.hasArg(OPT_fobjc_default_synthesize_properties); 1216 Opts.CatchUndefined = Args.hasArg(OPT_fcatch_undefined_behavior); 1217 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 1218 Opts.PackStruct = Args.getLastArgIntValue(OPT_fpack_struct_EQ, 0, Diags); 1219 Opts.PICLevel = Args.getLastArgIntValue(OPT_pic_level, 0, Diags); 1220 Opts.PIELevel = Args.getLastArgIntValue(OPT_pie_level, 0, Diags); 1221 Opts.Static = Args.hasArg(OPT_static_define); 1222 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 1223 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 1224 || Args.hasArg(OPT_fdump_record_layouts); 1225 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 1226 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 1227 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 1228 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 1229 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 1230 Opts.MRTD = Args.hasArg(OPT_mrtd); 1231 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 1232 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 1233 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 1234 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 1235 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 1236 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 1237 Opts.SanitizeAddress = Args.hasArg(OPT_faddress_sanitizer); 1238 Opts.SanitizeThread = Args.hasArg(OPT_fthread_sanitizer); 1239 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 1240 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name); 1241 1242 // Record whether the __DEPRECATED define was requested. 1243 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 1244 OPT_fno_deprecated_macro, 1245 Opts.Deprecated); 1246 1247 // FIXME: Eliminate this dependency. 1248 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 1249 OptSize = getOptimizationLevelSize(Args, IK, Diags); 1250 Opts.Optimize = Opt != 0; 1251 Opts.OptimizeSize = OptSize != 0; 1252 1253 // This is the __NO_INLINE__ define, which just depends on things like the 1254 // optimization level and -fno-inline, not actually whether the backend has 1255 // inlining enabled. 1256 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); 1257 1258 Opts.FastMath = Args.hasArg(OPT_ffast_math); 1259 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only); 1260 1261 Opts.EmitMicrosoftInlineAsm = Args.hasArg(OPT_fenable_experimental_ms_inline_asm); 1262 1263 Opts.RetainCommentsFromSystemHeaders = 1264 Args.hasArg(OPT_fretain_comments_from_system_headers); 1265 1266 unsigned SSP = Args.getLastArgIntValue(OPT_stack_protector, 0, Diags); 1267 switch (SSP) { 1268 default: 1269 Diags.Report(diag::err_drv_invalid_value) 1270 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 1271 break; 1272 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 1273 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 1274 case 2: Opts.setStackProtector(LangOptions::SSPReq); break; 1275 } 1276 } 1277 1278 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 1279 FileManager &FileMgr, 1280 DiagnosticsEngine &Diags) { 1281 using namespace options; 1282 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 1283 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 1284 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 1285 Opts.TokenCache = A->getValue(); 1286 else 1287 Opts.TokenCache = Opts.ImplicitPTHInclude; 1288 Opts.UsePredefines = !Args.hasArg(OPT_undef); 1289 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 1290 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 1291 1292 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 1293 for (arg_iterator it = Args.filtered_begin(OPT_error_on_deserialized_pch_decl), 1294 ie = Args.filtered_end(); it != ie; ++it) { 1295 const Arg *A = *it; 1296 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); 1297 } 1298 1299 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 1300 StringRef Value(A->getValue()); 1301 size_t Comma = Value.find(','); 1302 unsigned Bytes = 0; 1303 unsigned EndOfLine = 0; 1304 1305 if (Comma == StringRef::npos || 1306 Value.substr(0, Comma).getAsInteger(10, Bytes) || 1307 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 1308 Diags.Report(diag::err_drv_preamble_format); 1309 else { 1310 Opts.PrecompiledPreambleBytes.first = Bytes; 1311 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 1312 } 1313 } 1314 1315 // Add macros from the command line. 1316 for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U), 1317 ie = Args.filtered_end(); it != ie; ++it) { 1318 if ((*it)->getOption().matches(OPT_D)) 1319 Opts.addMacroDef((*it)->getValue()); 1320 else 1321 Opts.addMacroUndef((*it)->getValue()); 1322 } 1323 1324 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 1325 1326 // Add the ordered list of -includes. 1327 for (arg_iterator it = Args.filtered_begin(OPT_include, OPT_include_pch, 1328 OPT_include_pth), 1329 ie = Args.filtered_end(); it != ie; ++it) { 1330 const Arg *A = *it; 1331 Opts.Includes.push_back(A->getValue()); 1332 } 1333 1334 for (arg_iterator it = Args.filtered_begin(OPT_chain_include), 1335 ie = Args.filtered_end(); it != ie; ++it) { 1336 const Arg *A = *it; 1337 Opts.ChainedIncludes.push_back(A->getValue()); 1338 } 1339 1340 // Include 'altivec.h' if -faltivec option present 1341 if (Args.hasArg(OPT_faltivec)) 1342 Opts.Includes.push_back("altivec.h"); 1343 1344 for (arg_iterator it = Args.filtered_begin(OPT_remap_file), 1345 ie = Args.filtered_end(); it != ie; ++it) { 1346 const Arg *A = *it; 1347 std::pair<StringRef,StringRef> Split = 1348 StringRef(A->getValue()).split(';'); 1349 1350 if (Split.second.empty()) { 1351 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 1352 continue; 1353 } 1354 1355 Opts.addRemappedFile(Split.first, Split.second); 1356 } 1357 1358 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 1359 StringRef Name = A->getValue(); 1360 unsigned Library = llvm::StringSwitch<unsigned>(Name) 1361 .Case("libc++", ARCXX_libcxx) 1362 .Case("libstdc++", ARCXX_libstdcxx) 1363 .Case("none", ARCXX_nolib) 1364 .Default(~0U); 1365 if (Library == ~0U) 1366 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1367 else 1368 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 1369 } 1370 } 1371 1372 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 1373 ArgList &Args) { 1374 using namespace options; 1375 Opts.ShowCPP = !Args.hasArg(OPT_dM); 1376 Opts.ShowComments = Args.hasArg(OPT_C); 1377 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 1378 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 1379 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 1380 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 1381 } 1382 1383 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) { 1384 using namespace options; 1385 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 1386 Opts.CXXABI = Args.getLastArgValue(OPT_cxx_abi); 1387 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 1388 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 1389 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 1390 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 1391 1392 // Use the default target triple if unspecified. 1393 if (Opts.Triple.empty()) 1394 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 1395 } 1396 1397 // 1398 1399 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 1400 const char *const *ArgBegin, 1401 const char *const *ArgEnd, 1402 DiagnosticsEngine &Diags) { 1403 bool Success = true; 1404 1405 // Parse the arguments. 1406 OwningPtr<OptTable> Opts(createDriverOptTable()); 1407 unsigned MissingArgIndex, MissingArgCount; 1408 OwningPtr<InputArgList> Args( 1409 Opts->ParseArgs(ArgBegin, ArgEnd,MissingArgIndex, MissingArgCount)); 1410 1411 // Check for missing argument error. 1412 if (MissingArgCount) { 1413 Diags.Report(diag::err_drv_missing_argument) 1414 << Args->getArgString(MissingArgIndex) << MissingArgCount; 1415 Success = false; 1416 } 1417 1418 // Issue errors on unknown arguments. 1419 for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN), 1420 ie = Args->filtered_end(); it != ie; ++it) { 1421 Diags.Report(diag::err_drv_unknown_argument) << (*it)->getAsString(*Args); 1422 Success = false; 1423 } 1424 1425 // Issue errors on arguments that are not valid for CC1. 1426 for (ArgList::iterator I = Args->begin(), E = Args->end(); 1427 I != E; ++I) { 1428 if (!(*I)->getOption().hasFlag(options::CC1Option)) { 1429 Diags.Report(diag::err_drv_unknown_argument) << (*I)->getAsString(*Args); 1430 Success = false; 1431 } 1432 } 1433 1434 Success = ParseAnalyzerArgs(*Res.getAnalyzerOpts(), *Args, Diags) && Success; 1435 Success = ParseMigratorArgs(Res.getMigratorOpts(), *Args) && Success; 1436 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args); 1437 Success = ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, &Diags) 1438 && Success; 1439 ParseFileSystemArgs(Res.getFileSystemOpts(), *Args); 1440 // FIXME: We shouldn't have to pass the DashX option around here 1441 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags); 1442 Success = ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, DashX, Diags) 1443 && Success; 1444 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args); 1445 if (DashX != IK_AST && DashX != IK_LLVM_IR) { 1446 ParseLangArgs(*Res.getLangOpts(), *Args, DashX, Diags); 1447 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 1448 Res.getLangOpts()->ObjCExceptions = 1; 1449 } 1450 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 1451 // PCH file and find the original header name. Remove the need to do that in 1452 // ParsePreprocessorArgs and remove the FileManager 1453 // parameters from the function and the "FileManager.h" #include. 1454 FileManager FileMgr(Res.getFileSystemOpts()); 1455 ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, FileMgr, Diags); 1456 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args); 1457 ParseTargetArgs(Res.getTargetOpts(), *Args); 1458 1459 return Success; 1460 } 1461 1462 namespace { 1463 1464 class ModuleSignature { 1465 llvm::SmallVector<uint64_t, 16> Data; 1466 unsigned CurBit; 1467 uint64_t CurValue; 1468 1469 public: 1470 ModuleSignature() : CurBit(0), CurValue(0) { } 1471 1472 void add(uint64_t Value, unsigned Bits); 1473 void add(StringRef Value); 1474 void flush(); 1475 1476 llvm::APInt getAsInteger() const; 1477 }; 1478 } 1479 1480 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) { 1481 CurValue |= Value << CurBit; 1482 if (CurBit + NumBits < 64) { 1483 CurBit += NumBits; 1484 return; 1485 } 1486 1487 // Add the current word. 1488 Data.push_back(CurValue); 1489 1490 if (CurBit) 1491 CurValue = Value >> (64-CurBit); 1492 else 1493 CurValue = 0; 1494 CurBit = (CurBit+NumBits) & 63; 1495 } 1496 1497 void ModuleSignature::flush() { 1498 if (CurBit == 0) 1499 return; 1500 1501 Data.push_back(CurValue); 1502 CurBit = 0; 1503 CurValue = 0; 1504 } 1505 1506 void ModuleSignature::add(StringRef Value) { 1507 for (StringRef::iterator I = Value.begin(), IEnd = Value.end(); I != IEnd;++I) 1508 add(*I, 8); 1509 } 1510 1511 llvm::APInt ModuleSignature::getAsInteger() const { 1512 return llvm::APInt(Data.size() * 64, Data); 1513 } 1514 1515 std::string CompilerInvocation::getModuleHash() const { 1516 using llvm::hash_code; 1517 using llvm::hash_value; 1518 using llvm::hash_combine; 1519 1520 // Start the signature with the compiler version. 1521 // FIXME: We'd rather use something more cryptographically sound that 1522 // CityHash, but this will do for now. 1523 hash_code code = hash_value(getClangFullRepositoryVersion()); 1524 1525 // Extend the signature with the language options 1526 #define LANGOPT(Name, Bits, Default, Description) \ 1527 code = hash_combine(code, LangOpts->Name); 1528 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 1529 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name())); 1530 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 1531 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 1532 #include "clang/Basic/LangOptions.def" 1533 1534 // Extend the signature with the target options. 1535 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, 1536 TargetOpts->ABI, TargetOpts->CXXABI, 1537 TargetOpts->LinkerVersion); 1538 for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) 1539 code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); 1540 1541 // Extend the signature with preprocessor options. 1542 const PreprocessorOptions &ppOpts = getPreprocessorOpts(); 1543 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); 1544 1545 std::vector<StringRef> MacroDefs; 1546 for (std::vector<std::pair<std::string, bool/*isUndef*/> >::const_iterator 1547 I = getPreprocessorOpts().Macros.begin(), 1548 IEnd = getPreprocessorOpts().Macros.end(); 1549 I != IEnd; ++I) { 1550 code = hash_combine(code, I->first, I->second); 1551 } 1552 1553 // Extend the signature with the sysroot. 1554 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); 1555 code = hash_combine(code, hsOpts.Sysroot, hsOpts.UseBuiltinIncludes, 1556 hsOpts.UseStandardSystemIncludes, 1557 hsOpts.UseStandardCXXIncludes, 1558 hsOpts.UseLibcxx); 1559 1560 return llvm::APInt(64, code).toString(36, /*Signed=*/false); 1561 } 1562