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/Driver/Arg.h" 15 #include "clang/Driver/ArgList.h" 16 #include "clang/Driver/Options.h" 17 #include "clang/Driver/DriverDiagnostic.h" 18 #include "clang/Driver/OptTable.h" 19 #include "clang/Driver/Option.h" 20 #include "clang/Frontend/CompilerInvocation.h" 21 #include "clang/Frontend/LangStandard.h" 22 #include "clang/Serialization/ASTReader.h" 23 #include "llvm/ADT/OwningPtr.h" 24 #include "llvm/ADT/SmallVector.h" 25 #include "llvm/ADT/StringExtras.h" 26 #include "llvm/ADT/StringSwitch.h" 27 #include "llvm/ADT/Triple.h" 28 #include "llvm/Support/ErrorHandling.h" 29 #include "llvm/Support/Host.h" 30 #include "llvm/Support/Path.h" 31 using namespace clang; 32 33 //===----------------------------------------------------------------------===// 34 // Initialization. 35 //===----------------------------------------------------------------------===// 36 37 CompilerInvocationBase::CompilerInvocationBase() 38 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), 39 DiagnosticOpts(new DiagnosticOptions()), 40 HeaderSearchOpts(new HeaderSearchOptions()), 41 PreprocessorOpts(new PreprocessorOptions()) {} 42 43 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) 44 : RefCountedBase<CompilerInvocation>(), 45 LangOpts(new LangOptions(*X.getLangOpts())), 46 TargetOpts(new TargetOptions(X.getTargetOpts())), 47 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), 48 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), 49 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} 50 51 //===----------------------------------------------------------------------===// 52 // Deserialization (from args) 53 //===----------------------------------------------------------------------===// 54 55 using namespace clang::driver; 56 using namespace clang::driver::options; 57 58 // 59 60 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, 61 DiagnosticsEngine &Diags) { 62 unsigned DefaultOpt = 0; 63 if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable)) 64 DefaultOpt = 2; 65 66 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 67 if (A->getOption().matches(options::OPT_O0)) 68 return 0; 69 70 assert (A->getOption().matches(options::OPT_O)); 71 72 llvm::StringRef S(A->getValue(Args)); 73 if (S == "s" || S == "z" || S.empty()) 74 return 2; 75 76 return Args.getLastArgIntValue(OPT_O, DefaultOpt, Diags); 77 } 78 79 return DefaultOpt; 80 } 81 82 static unsigned getOptimizationLevelSize(ArgList &Args, InputKind IK, 83 DiagnosticsEngine &Diags) { 84 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { 85 if (A->getOption().matches(options::OPT_O)) { 86 switch (A->getValue(Args)[0]) { 87 default: 88 return 0; 89 case 's': 90 return 1; 91 case 'z': 92 return 2; 93 } 94 } 95 } 96 return 0; 97 } 98 99 static void addWarningArgs(ArgList &Args, std::vector<std::string> &Warnings) { 100 for (arg_iterator I = Args.filtered_begin(OPT_W_Group), 101 E = Args.filtered_end(); I != E; ++I) { 102 Arg *A = *I; 103 // If the argument is a pure flag, add its name (minus the "W" at the beginning) 104 // to the warning list. Else, add its value (for the OPT_W case). 105 if (A->getOption().getKind() == Option::FlagClass) { 106 Warnings.push_back(A->getOption().getName().substr(1)); 107 } else { 108 for (unsigned Idx = 0, End = A->getNumValues(); 109 Idx < End; ++Idx) { 110 StringRef V = A->getValue(Args, Idx); 111 // "-Wl," and such are not warning options. 112 // FIXME: Should be handled by putting these in separate flags. 113 if (V.startswith("l,") || V.startswith("a,") || V.startswith("p,")) 114 continue; 115 116 Warnings.push_back(V); 117 } 118 } 119 } 120 } 121 122 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, 123 DiagnosticsEngine &Diags) { 124 using namespace options; 125 bool Success = true; 126 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { 127 StringRef Name = A->getValue(Args); 128 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name) 129 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ 130 .Case(CMDFLAG, NAME##Model) 131 #include "clang/StaticAnalyzer/Core/Analyses.def" 132 .Default(NumStores); 133 if (Value == NumStores) { 134 Diags.Report(diag::err_drv_invalid_value) 135 << A->getAsString(Args) << Name; 136 Success = false; 137 } else { 138 Opts.AnalysisStoreOpt = Value; 139 } 140 } 141 142 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { 143 StringRef Name = A->getValue(Args); 144 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name) 145 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ 146 .Case(CMDFLAG, NAME##Model) 147 #include "clang/StaticAnalyzer/Core/Analyses.def" 148 .Default(NumConstraints); 149 if (Value == NumConstraints) { 150 Diags.Report(diag::err_drv_invalid_value) 151 << A->getAsString(Args) << Name; 152 Success = false; 153 } else { 154 Opts.AnalysisConstraintsOpt = Value; 155 } 156 } 157 158 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { 159 StringRef Name = A->getValue(Args); 160 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name) 161 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREAT) \ 162 .Case(CMDFLAG, PD_##NAME) 163 #include "clang/StaticAnalyzer/Core/Analyses.def" 164 .Default(NUM_ANALYSIS_DIAG_CLIENTS); 165 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { 166 Diags.Report(diag::err_drv_invalid_value) 167 << A->getAsString(Args) << Name; 168 Success = false; 169 } else { 170 Opts.AnalysisDiagOpt = Value; 171 } 172 } 173 174 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { 175 StringRef Name = A->getValue(Args); 176 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name) 177 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ 178 .Case(CMDFLAG, NAME) 179 #include "clang/StaticAnalyzer/Core/Analyses.def" 180 .Default(NumPurgeModes); 181 if (Value == NumPurgeModes) { 182 Diags.Report(diag::err_drv_invalid_value) 183 << A->getAsString(Args) << Name; 184 Success = false; 185 } else { 186 Opts.AnalysisPurgeOpt = Value; 187 } 188 } 189 190 if (Arg *A = Args.getLastArg(OPT_analyzer_ipa)) { 191 StringRef Name = A->getValue(Args); 192 AnalysisIPAMode Value = llvm::StringSwitch<AnalysisIPAMode>(Name) 193 #define ANALYSIS_IPA(NAME, CMDFLAG, DESC) \ 194 .Case(CMDFLAG, NAME) 195 #include "clang/StaticAnalyzer/Core/Analyses.def" 196 .Default(NumIPAModes); 197 if (Value == NumIPAModes) { 198 Diags.Report(diag::err_drv_invalid_value) 199 << A->getAsString(Args) << Name; 200 Success = false; 201 } else { 202 Opts.IPAMode = Value; 203 } 204 } 205 206 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { 207 StringRef Name = A->getValue(Args); 208 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name) 209 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ 210 .Case(CMDFLAG, NAME) 211 #include "clang/StaticAnalyzer/Core/Analyses.def" 212 .Default(NumInliningModes); 213 if (Value == NumInliningModes) { 214 Diags.Report(diag::err_drv_invalid_value) 215 << A->getAsString(Args) << Name; 216 Success = false; 217 } else { 218 Opts.InliningMode = Value; 219 } 220 } 221 222 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); 223 Opts.visualizeExplodedGraphWithGraphViz = 224 Args.hasArg(OPT_analyzer_viz_egraph_graphviz); 225 Opts.visualizeExplodedGraphWithUbiGraph = 226 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); 227 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); 228 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); 229 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); 230 Opts.AnalyzeNestedBlocks = 231 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); 232 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); 233 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); 234 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); 235 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); 236 Opts.MaxNodes = Args.getLastArgIntValue(OPT_analyzer_max_nodes, 150000,Diags); 237 Opts.maxBlockVisitOnPath = Args.getLastArgIntValue(OPT_analyzer_max_loop, 4, Diags); 238 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); 239 Opts.InlineMaxStackDepth = 240 Args.getLastArgIntValue(OPT_analyzer_inline_max_stack_depth, 241 Opts.InlineMaxStackDepth, Diags); 242 Opts.InlineMaxFunctionSize = 243 Args.getLastArgIntValue(OPT_analyzer_inline_max_function_size, 244 Opts.InlineMaxFunctionSize, Diags); 245 246 Opts.CheckersControlList.clear(); 247 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_checker, 248 OPT_analyzer_disable_checker), 249 ie = Args.filtered_end(); it != ie; ++it) { 250 const Arg *A = *it; 251 A->claim(); 252 bool enable = (A->getOption().getID() == OPT_analyzer_checker); 253 // We can have a list of comma separated checker names, e.g: 254 // '-analyzer-checker=cocoa,unix' 255 StringRef checkerList = A->getValue(Args); 256 SmallVector<StringRef, 4> checkers; 257 checkerList.split(checkers, ","); 258 for (unsigned i = 0, e = checkers.size(); i != e; ++i) 259 Opts.CheckersControlList.push_back(std::make_pair(checkers[i], enable)); 260 } 261 262 // Go through the analyzer configuration options. 263 for (arg_iterator it = Args.filtered_begin(OPT_analyzer_config), 264 ie = Args.filtered_end(); it != ie; ++it) { 265 const Arg *A = *it; 266 A->claim(); 267 // We can have a list of comma separated config names, e.g: 268 // '-analyzer-config key1=val1,key2=val2' 269 StringRef configList = A->getValue(Args); 270 SmallVector<StringRef, 4> configVals; 271 configList.split(configVals, ","); 272 for (unsigned i = 0, e = configVals.size(); i != e; ++i) { 273 StringRef key, val; 274 llvm::tie(key, val) = configVals[i].split("="); 275 if (val.empty()) { 276 Diags.Report(SourceLocation(), 277 diag::err_analyzer_config_no_value) << configVals[i]; 278 Success = false; 279 break; 280 } 281 if (val.find('=') != StringRef::npos) { 282 Diags.Report(SourceLocation(), 283 diag::err_analyzer_config_multiple_values) 284 << configVals[i]; 285 Success = false; 286 break; 287 } 288 Opts.Config[key] = val; 289 } 290 } 291 292 return Success; 293 } 294 295 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { 296 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); 297 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); 298 return true; 299 } 300 301 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, 302 DiagnosticsEngine &Diags) { 303 using namespace options; 304 bool Success = true; 305 306 unsigned OptLevel = getOptimizationLevel(Args, IK, Diags); 307 if (OptLevel > 3) { 308 Diags.Report(diag::err_drv_invalid_value) 309 << Args.getLastArg(OPT_O)->getAsString(Args) << OptLevel; 310 OptLevel = 3; 311 Success = false; 312 } 313 Opts.OptimizationLevel = OptLevel; 314 315 // We must always run at least the always inlining pass. 316 Opts.setInlining( 317 (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining 318 : CodeGenOptions::OnlyAlwaysInlining); 319 // -fno-inline-functions overrides OptimizationLevel > 1. 320 Opts.NoInline = Args.hasArg(OPT_fno_inline); 321 Opts.setInlining(Args.hasArg(OPT_fno_inline_functions) ? 322 CodeGenOptions::OnlyAlwaysInlining : Opts.getInlining()); 323 324 if (Args.hasArg(OPT_gline_tables_only)) { 325 Opts.setDebugInfo(CodeGenOptions::DebugLineTablesOnly); 326 } else if (Args.hasArg(OPT_g_Flag)) { 327 if (Args.hasFlag(OPT_flimit_debug_info, OPT_fno_limit_debug_info, true)) 328 Opts.setDebugInfo(CodeGenOptions::LimitedDebugInfo); 329 else 330 Opts.setDebugInfo(CodeGenOptions::FullDebugInfo); 331 } 332 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); 333 334 Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); 335 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); 336 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); 337 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( 338 OPT_fuse_register_sized_bitfield_access); 339 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); 340 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); 341 Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); 342 Opts.NoCommon = Args.hasArg(OPT_fno_common); 343 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); 344 Opts.OptimizeSize = getOptimizationLevelSize(Args, IK, Diags); 345 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || 346 Args.hasArg(OPT_ffreestanding)); 347 Opts.UnrollLoops = Args.hasArg(OPT_funroll_loops) || 348 (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize); 349 350 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); 351 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); 352 Opts.CUDAIsDevice = Args.hasArg(OPT_fcuda_is_device); 353 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); 354 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); 355 Opts.CodeModel = Args.getLastArgValue(OPT_mcode_model); 356 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); 357 Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim); 358 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); 359 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); 360 Opts.HiddenWeakVTables = Args.hasArg(OPT_fhidden_weak_vtables); 361 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); 362 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); 363 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || 364 Args.hasArg(OPT_cl_finite_math_only)|| 365 Args.hasArg(OPT_cl_fast_relaxed_math)); 366 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || 367 Args.hasArg(OPT_cl_finite_math_only)|| 368 Args.hasArg(OPT_cl_fast_relaxed_math)); 369 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); 370 Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); 371 Opts.NumRegisterParameters = Args.getLastArgIntValue(OPT_mregparm, 0, Diags); 372 Opts.NoGlobalMerge = Args.hasArg(OPT_mno_global_merge); 373 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); 374 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); 375 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); 376 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); 377 Opts.NoDwarf2CFIAsm = Args.hasArg(OPT_fno_dwarf2_cfi_asm); 378 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); 379 Opts.SoftFloat = Args.hasArg(OPT_msoft_float); 380 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); 381 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || 382 Args.hasArg(OPT_cl_unsafe_math_optimizations) || 383 Args.hasArg(OPT_cl_fast_relaxed_math); 384 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); 385 Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); 386 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); 387 Opts.BoundsChecking = Args.getLastArgIntValue(OPT_fbounds_checking_EQ, 0, 388 Diags); 389 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); 390 391 Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections); 392 Opts.DataSections = Args.hasArg(OPT_fdata_sections); 393 394 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); 395 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 396 397 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); 398 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); 399 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); 400 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); 401 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); 402 Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file); 403 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); 404 Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file); 405 Opts.SSPBufferSize = 406 Args.getLastArgIntValue(OPT_stack_protector_buffer_size, 8, Diags); 407 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); 408 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { 409 StringRef Val = A->getValue(Args); 410 unsigned StackAlignment = Opts.StackAlignment; 411 Val.getAsInteger(10, StackAlignment); 412 Opts.StackAlignment = StackAlignment; 413 } 414 415 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { 416 StringRef Name = A->getValue(Args); 417 unsigned Method = llvm::StringSwitch<unsigned>(Name) 418 .Case("legacy", CodeGenOptions::Legacy) 419 .Case("non-legacy", CodeGenOptions::NonLegacy) 420 .Case("mixed", CodeGenOptions::Mixed) 421 .Default(~0U); 422 if (Method == ~0U) { 423 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 424 Success = false; 425 } else { 426 Opts.setObjCDispatchMethod( 427 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method)); 428 } 429 } 430 431 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { 432 StringRef Name = A->getValue(Args); 433 unsigned Model = llvm::StringSwitch<unsigned>(Name) 434 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) 435 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) 436 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) 437 .Case("local-exec", CodeGenOptions::LocalExecTLSModel) 438 .Default(~0U); 439 if (Model == ~0U) { 440 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 441 Success = false; 442 } else { 443 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model)); 444 } 445 } 446 447 return Success; 448 } 449 450 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, 451 ArgList &Args) { 452 using namespace options; 453 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); 454 Opts.Targets = Args.getAllArgValues(OPT_MT); 455 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); 456 Opts.UsePhonyTargets = Args.hasArg(OPT_MP); 457 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); 458 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); 459 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); 460 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); 461 } 462 463 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, 464 DiagnosticsEngine *Diags) { 465 using namespace options; 466 bool Success = true; 467 468 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); 469 Opts.DiagnosticSerializationFile = 470 Args.getLastArgValue(OPT_diagnostic_serialized_file); 471 Opts.IgnoreWarnings = Args.hasArg(OPT_w); 472 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); 473 Opts.Pedantic = Args.hasArg(OPT_pedantic); 474 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); 475 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); 476 Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics); 477 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, 478 OPT_fno_show_column, 479 /*Default=*/true); 480 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); 481 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); 482 Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option); 483 484 // Default behavior is to not to show note include stacks. 485 Opts.ShowNoteIncludeStack = false; 486 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, 487 OPT_fno_diagnostics_show_note_include_stack)) 488 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) 489 Opts.ShowNoteIncludeStack = true; 490 491 StringRef ShowOverloads = 492 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); 493 if (ShowOverloads == "best") 494 Opts.setShowOverloads(Ovl_Best); 495 else if (ShowOverloads == "all") 496 Opts.setShowOverloads(Ovl_All); 497 else { 498 Success = false; 499 if (Diags) 500 Diags->Report(diag::err_drv_invalid_value) 501 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) 502 << ShowOverloads; 503 } 504 505 StringRef ShowCategory = 506 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); 507 if (ShowCategory == "none") 508 Opts.ShowCategories = 0; 509 else if (ShowCategory == "id") 510 Opts.ShowCategories = 1; 511 else if (ShowCategory == "name") 512 Opts.ShowCategories = 2; 513 else { 514 Success = false; 515 if (Diags) 516 Diags->Report(diag::err_drv_invalid_value) 517 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) 518 << ShowCategory; 519 } 520 521 StringRef Format = 522 Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); 523 if (Format == "clang") 524 Opts.setFormat(DiagnosticOptions::Clang); 525 else if (Format == "msvc") 526 Opts.setFormat(DiagnosticOptions::Msvc); 527 else if (Format == "vi") 528 Opts.setFormat(DiagnosticOptions::Vi); 529 else { 530 Success = false; 531 if (Diags) 532 Diags->Report(diag::err_drv_invalid_value) 533 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) 534 << Format; 535 } 536 537 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); 538 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); 539 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); 540 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); 541 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); 542 Opts.ErrorLimit = Args.getLastArgIntValue(OPT_ferror_limit, 0, Diags); 543 Opts.MacroBacktraceLimit 544 = Args.getLastArgIntValue(OPT_fmacro_backtrace_limit, 545 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); 546 Opts.TemplateBacktraceLimit 547 = Args.getLastArgIntValue(OPT_ftemplate_backtrace_limit, 548 DiagnosticOptions::DefaultTemplateBacktraceLimit, 549 Diags); 550 Opts.ConstexprBacktraceLimit 551 = Args.getLastArgIntValue(OPT_fconstexpr_backtrace_limit, 552 DiagnosticOptions::DefaultConstexprBacktraceLimit, 553 Diags); 554 Opts.TabStop = Args.getLastArgIntValue(OPT_ftabstop, 555 DiagnosticOptions::DefaultTabStop, Diags); 556 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { 557 Opts.TabStop = DiagnosticOptions::DefaultTabStop; 558 if (Diags) 559 Diags->Report(diag::warn_ignoring_ftabstop_value) 560 << Opts.TabStop << DiagnosticOptions::DefaultTabStop; 561 } 562 Opts.MessageLength = Args.getLastArgIntValue(OPT_fmessage_length, 0, Diags); 563 Opts.DumpBuildInformation = Args.getLastArgValue(OPT_dump_build_information); 564 addWarningArgs(Args, Opts.Warnings); 565 566 return Success; 567 } 568 569 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { 570 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); 571 } 572 573 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, 574 DiagnosticsEngine &Diags) { 575 using namespace options; 576 Opts.ProgramAction = frontend::ParseSyntaxOnly; 577 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { 578 switch (A->getOption().getID()) { 579 default: 580 llvm_unreachable("Invalid option in group!"); 581 case OPT_ast_list: 582 Opts.ProgramAction = frontend::ASTDeclList; break; 583 case OPT_ast_dump: 584 Opts.ProgramAction = frontend::ASTDump; break; 585 case OPT_ast_dump_xml: 586 Opts.ProgramAction = frontend::ASTDumpXML; break; 587 case OPT_ast_print: 588 Opts.ProgramAction = frontend::ASTPrint; break; 589 case OPT_ast_view: 590 Opts.ProgramAction = frontend::ASTView; break; 591 case OPT_dump_raw_tokens: 592 Opts.ProgramAction = frontend::DumpRawTokens; break; 593 case OPT_dump_tokens: 594 Opts.ProgramAction = frontend::DumpTokens; break; 595 case OPT_S: 596 Opts.ProgramAction = frontend::EmitAssembly; break; 597 case OPT_emit_llvm_bc: 598 Opts.ProgramAction = frontend::EmitBC; break; 599 case OPT_emit_html: 600 Opts.ProgramAction = frontend::EmitHTML; break; 601 case OPT_emit_llvm: 602 Opts.ProgramAction = frontend::EmitLLVM; break; 603 case OPT_emit_llvm_only: 604 Opts.ProgramAction = frontend::EmitLLVMOnly; break; 605 case OPT_emit_codegen_only: 606 Opts.ProgramAction = frontend::EmitCodeGenOnly; break; 607 case OPT_emit_obj: 608 Opts.ProgramAction = frontend::EmitObj; break; 609 case OPT_fixit_EQ: 610 Opts.FixItSuffix = A->getValue(Args); 611 // fall-through! 612 case OPT_fixit: 613 Opts.ProgramAction = frontend::FixIt; break; 614 case OPT_emit_module: 615 Opts.ProgramAction = frontend::GenerateModule; break; 616 case OPT_emit_pch: 617 Opts.ProgramAction = frontend::GeneratePCH; break; 618 case OPT_emit_pth: 619 Opts.ProgramAction = frontend::GeneratePTH; break; 620 case OPT_init_only: 621 Opts.ProgramAction = frontend::InitOnly; break; 622 case OPT_fsyntax_only: 623 Opts.ProgramAction = frontend::ParseSyntaxOnly; break; 624 case OPT_print_decl_contexts: 625 Opts.ProgramAction = frontend::PrintDeclContext; break; 626 case OPT_print_preamble: 627 Opts.ProgramAction = frontend::PrintPreamble; break; 628 case OPT_E: 629 Opts.ProgramAction = frontend::PrintPreprocessedInput; break; 630 case OPT_rewrite_macros: 631 Opts.ProgramAction = frontend::RewriteMacros; break; 632 case OPT_rewrite_objc: 633 Opts.ProgramAction = frontend::RewriteObjC; break; 634 case OPT_rewrite_test: 635 Opts.ProgramAction = frontend::RewriteTest; break; 636 case OPT_analyze: 637 Opts.ProgramAction = frontend::RunAnalysis; break; 638 case OPT_migrate: 639 Opts.ProgramAction = frontend::MigrateSource; break; 640 case OPT_Eonly: 641 Opts.ProgramAction = frontend::RunPreprocessorOnly; break; 642 } 643 } 644 645 if (const Arg* A = Args.getLastArg(OPT_plugin)) { 646 Opts.Plugins.push_back(A->getValue(Args,0)); 647 Opts.ProgramAction = frontend::PluginAction; 648 Opts.ActionName = A->getValue(Args); 649 650 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 651 end = Args.filtered_end(); it != end; ++it) { 652 if ((*it)->getValue(Args, 0) == Opts.ActionName) 653 Opts.PluginArgs.push_back((*it)->getValue(Args, 1)); 654 } 655 } 656 657 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); 658 Opts.AddPluginArgs.resize(Opts.AddPluginActions.size()); 659 for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) { 660 for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), 661 end = Args.filtered_end(); it != end; ++it) { 662 if ((*it)->getValue(Args, 0) == Opts.AddPluginActions[i]) 663 Opts.AddPluginArgs[i].push_back((*it)->getValue(Args, 1)); 664 } 665 } 666 667 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { 668 Opts.CodeCompletionAt = 669 ParsedSourceLocation::FromString(A->getValue(Args)); 670 if (Opts.CodeCompletionAt.FileName.empty()) 671 Diags.Report(diag::err_drv_invalid_value) 672 << A->getAsString(Args) << A->getValue(Args); 673 } 674 Opts.DisableFree = Args.hasArg(OPT_disable_free); 675 676 Opts.OutputFile = Args.getLastArgValue(OPT_o); 677 Opts.Plugins = Args.getAllArgValues(OPT_load); 678 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); 679 Opts.ShowHelp = Args.hasArg(OPT_help); 680 Opts.ShowStats = Args.hasArg(OPT_print_stats); 681 Opts.ShowTimers = Args.hasArg(OPT_ftime_report); 682 Opts.ShowVersion = Args.hasArg(OPT_version); 683 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); 684 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); 685 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); 686 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); 687 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); 688 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); 689 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); 690 691 Opts.CodeCompleteOpts.IncludeMacros 692 = Args.hasArg(OPT_code_completion_macros); 693 Opts.CodeCompleteOpts.IncludeCodePatterns 694 = Args.hasArg(OPT_code_completion_patterns); 695 Opts.CodeCompleteOpts.IncludeGlobals 696 = !Args.hasArg(OPT_no_code_completion_globals); 697 Opts.CodeCompleteOpts.IncludeBriefComments 698 = Args.hasArg(OPT_code_completion_brief_comments); 699 700 Opts.OverrideRecordLayoutsFile 701 = Args.getLastArgValue(OPT_foverride_record_layout_EQ); 702 if (const Arg *A = Args.getLastArg(OPT_arcmt_check, 703 OPT_arcmt_modify, 704 OPT_arcmt_migrate)) { 705 switch (A->getOption().getID()) { 706 default: 707 llvm_unreachable("missed a case"); 708 case OPT_arcmt_check: 709 Opts.ARCMTAction = FrontendOptions::ARCMT_Check; 710 break; 711 case OPT_arcmt_modify: 712 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; 713 break; 714 case OPT_arcmt_migrate: 715 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; 716 break; 717 } 718 } 719 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); 720 Opts.ARCMTMigrateReportOut 721 = Args.getLastArgValue(OPT_arcmt_migrate_report_output); 722 Opts.ARCMTMigrateEmitARCErrors 723 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); 724 725 if (Args.hasArg(OPT_objcmt_migrate_literals)) 726 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; 727 if (Args.hasArg(OPT_objcmt_migrate_subscripting)) 728 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; 729 730 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && 731 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { 732 Diags.Report(diag::err_drv_argument_not_allowed_with) 733 << "ARC migration" << "ObjC migration"; 734 } 735 736 InputKind DashX = IK_None; 737 if (const Arg *A = Args.getLastArg(OPT_x)) { 738 DashX = llvm::StringSwitch<InputKind>(A->getValue(Args)) 739 .Case("c", IK_C) 740 .Case("cl", IK_OpenCL) 741 .Case("cuda", IK_CUDA) 742 .Case("c++", IK_CXX) 743 .Case("objective-c", IK_ObjC) 744 .Case("objective-c++", IK_ObjCXX) 745 .Case("cpp-output", IK_PreprocessedC) 746 .Case("assembler-with-cpp", IK_Asm) 747 .Case("c++-cpp-output", IK_PreprocessedCXX) 748 .Case("objective-c-cpp-output", IK_PreprocessedObjC) 749 .Case("objc-cpp-output", IK_PreprocessedObjC) 750 .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) 751 .Case("objc++-cpp-output", IK_PreprocessedObjCXX) 752 .Case("c-header", IK_C) 753 .Case("cl-header", IK_OpenCL) 754 .Case("objective-c-header", IK_ObjC) 755 .Case("c++-header", IK_CXX) 756 .Case("objective-c++-header", IK_ObjCXX) 757 .Case("ast", IK_AST) 758 .Case("ir", IK_LLVM_IR) 759 .Default(IK_None); 760 if (DashX == IK_None) 761 Diags.Report(diag::err_drv_invalid_value) 762 << A->getAsString(Args) << A->getValue(Args); 763 } 764 765 // '-' is the default input if none is given. 766 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT); 767 Opts.Inputs.clear(); 768 if (Inputs.empty()) 769 Inputs.push_back("-"); 770 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { 771 InputKind IK = DashX; 772 if (IK == IK_None) { 773 IK = FrontendOptions::getInputKindForExtension( 774 StringRef(Inputs[i]).rsplit('.').second); 775 // FIXME: Remove this hack. 776 if (i == 0) 777 DashX = IK; 778 } 779 Opts.Inputs.push_back(FrontendInputFile(Inputs[i], IK)); 780 } 781 782 return DashX; 783 } 784 785 std::string CompilerInvocation::GetResourcesPath(const char *Argv0, 786 void *MainAddr) { 787 llvm::sys::Path P = llvm::sys::Path::GetMainExecutable(Argv0, MainAddr); 788 789 if (!P.isEmpty()) { 790 P.eraseComponent(); // Remove /clang from foo/bin/clang 791 P.eraseComponent(); // Remove /bin from foo/bin 792 793 // Get foo/lib/clang/<version>/include 794 P.appendComponent("lib"); 795 P.appendComponent("clang"); 796 P.appendComponent(CLANG_VERSION_STRING); 797 } 798 799 return P.str(); 800 } 801 802 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { 803 using namespace options; 804 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); 805 Opts.Verbose = Args.hasArg(OPT_v); 806 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); 807 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); 808 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); 809 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) 810 Opts.UseLibcxx = (strcmp(A->getValue(Args), "libc++") == 0); 811 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); 812 Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodule_cache_path); 813 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); 814 815 // Add -I..., -F..., and -index-header-map options in order. 816 bool IsIndexHeaderMap = false; 817 for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F, 818 OPT_index_header_map), 819 ie = Args.filtered_end(); it != ie; ++it) { 820 if ((*it)->getOption().matches(OPT_index_header_map)) { 821 // -index-header-map applies to the next -I or -F. 822 IsIndexHeaderMap = true; 823 continue; 824 } 825 826 frontend::IncludeDirGroup Group 827 = IsIndexHeaderMap? frontend::IndexHeaderMap : frontend::Angled; 828 829 Opts.AddPath((*it)->getValue(Args), Group, true, 830 /*IsFramework=*/ (*it)->getOption().matches(OPT_F), false); 831 IsIndexHeaderMap = false; 832 } 833 834 // Add -iprefix/-iwith-prefix/-iwithprefixbefore options. 835 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. 836 for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix, 837 OPT_iwithprefixbefore), 838 ie = Args.filtered_end(); it != ie; ++it) { 839 const Arg *A = *it; 840 if (A->getOption().matches(OPT_iprefix)) 841 Prefix = A->getValue(Args); 842 else if (A->getOption().matches(OPT_iwithprefix)) 843 Opts.AddPath(Prefix.str() + A->getValue(Args), 844 frontend::System, false, false, false); 845 else 846 Opts.AddPath(Prefix.str() + A->getValue(Args), 847 frontend::Angled, false, false, false); 848 } 849 850 for (arg_iterator it = Args.filtered_begin(OPT_idirafter), 851 ie = Args.filtered_end(); it != ie; ++it) 852 Opts.AddPath((*it)->getValue(Args), frontend::After, true, false, false); 853 for (arg_iterator it = Args.filtered_begin(OPT_iquote), 854 ie = Args.filtered_end(); it != ie; ++it) 855 Opts.AddPath((*it)->getValue(Args), frontend::Quoted, true, false, false); 856 for (arg_iterator it = Args.filtered_begin(OPT_isystem, 857 OPT_iwithsysroot), ie = Args.filtered_end(); it != ie; ++it) 858 Opts.AddPath((*it)->getValue(Args), frontend::System, true, false, 859 !(*it)->getOption().matches(OPT_iwithsysroot)); 860 for (arg_iterator it = Args.filtered_begin(OPT_iframework), 861 ie = Args.filtered_end(); it != ie; ++it) 862 Opts.AddPath((*it)->getValue(Args), frontend::System, true, true, 863 true); 864 865 // Add the paths for the various language specific isystem flags. 866 for (arg_iterator it = Args.filtered_begin(OPT_c_isystem), 867 ie = Args.filtered_end(); it != ie; ++it) 868 Opts.AddPath((*it)->getValue(Args), frontend::CSystem, true, false, true); 869 for (arg_iterator it = Args.filtered_begin(OPT_cxx_isystem), 870 ie = Args.filtered_end(); it != ie; ++it) 871 Opts.AddPath((*it)->getValue(Args), frontend::CXXSystem, true, false, true); 872 for (arg_iterator it = Args.filtered_begin(OPT_objc_isystem), 873 ie = Args.filtered_end(); it != ie; ++it) 874 Opts.AddPath((*it)->getValue(Args), frontend::ObjCSystem, true, false,true); 875 for (arg_iterator it = Args.filtered_begin(OPT_objcxx_isystem), 876 ie = Args.filtered_end(); it != ie; ++it) 877 Opts.AddPath((*it)->getValue(Args), frontend::ObjCXXSystem, true, false, 878 true); 879 880 // Add the internal paths from a driver that detects standard include paths. 881 for (arg_iterator I = Args.filtered_begin(OPT_internal_isystem, 882 OPT_internal_externc_isystem), 883 E = Args.filtered_end(); 884 I != E; ++I) 885 Opts.AddPath((*I)->getValue(Args), frontend::System, 886 false, false, /*IgnoreSysRoot=*/true, /*IsInternal=*/true, 887 (*I)->getOption().matches(OPT_internal_externc_isystem)); 888 889 // Add the path prefixes which are implicitly treated as being system headers. 890 for (arg_iterator I = Args.filtered_begin(OPT_isystem_prefix, 891 OPT_ino_system_prefix), 892 E = Args.filtered_end(); 893 I != E; ++I) 894 Opts.AddSystemHeaderPrefix((*I)->getValue(Args), 895 (*I)->getOption().matches(OPT_isystem_prefix)); 896 } 897 898 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, 899 LangStandard::Kind LangStd) { 900 // Set some properties which depend solely on the input kind; it would be nice 901 // to move these to the language standard, and have the driver resolve the 902 // input kind + language standard. 903 if (IK == IK_Asm) { 904 Opts.AsmPreprocessor = 1; 905 } else if (IK == IK_ObjC || 906 IK == IK_ObjCXX || 907 IK == IK_PreprocessedObjC || 908 IK == IK_PreprocessedObjCXX) { 909 Opts.ObjC1 = Opts.ObjC2 = 1; 910 } 911 912 if (LangStd == LangStandard::lang_unspecified) { 913 // Based on the base language, pick one. 914 switch (IK) { 915 case IK_None: 916 case IK_AST: 917 case IK_LLVM_IR: 918 llvm_unreachable("Invalid input kind!"); 919 case IK_OpenCL: 920 LangStd = LangStandard::lang_opencl; 921 break; 922 case IK_CUDA: 923 LangStd = LangStandard::lang_cuda; 924 break; 925 case IK_Asm: 926 case IK_C: 927 case IK_PreprocessedC: 928 case IK_ObjC: 929 case IK_PreprocessedObjC: 930 LangStd = LangStandard::lang_gnu99; 931 break; 932 case IK_CXX: 933 case IK_PreprocessedCXX: 934 case IK_ObjCXX: 935 case IK_PreprocessedObjCXX: 936 LangStd = LangStandard::lang_gnucxx98; 937 break; 938 } 939 } 940 941 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 942 Opts.BCPLComment = Std.hasBCPLComments(); 943 Opts.C99 = Std.isC99(); 944 Opts.C11 = Std.isC11(); 945 Opts.CPlusPlus = Std.isCPlusPlus(); 946 Opts.CPlusPlus0x = Std.isCPlusPlus0x(); 947 Opts.CPlusPlus1y = Std.isCPlusPlus1y(); 948 Opts.Digraphs = Std.hasDigraphs(); 949 Opts.GNUMode = Std.isGNUMode(); 950 Opts.GNUInline = !Std.isC99(); 951 Opts.HexFloats = Std.hasHexFloats(); 952 Opts.ImplicitInt = Std.hasImplicitInt(); 953 954 // Set OpenCL Version. 955 if (LangStd == LangStandard::lang_opencl) { 956 Opts.OpenCL = 1; 957 Opts.OpenCLVersion = 100; 958 } 959 else if (LangStd == LangStandard::lang_opencl11) { 960 Opts.OpenCL = 1; 961 Opts.OpenCLVersion = 110; 962 } 963 else if (LangStd == LangStandard::lang_opencl12) { 964 Opts.OpenCL = 1; 965 Opts.OpenCLVersion = 120; 966 } 967 968 // OpenCL has some additional defaults. 969 if (Opts.OpenCL) { 970 Opts.AltiVec = 0; 971 Opts.CXXOperatorNames = 1; 972 Opts.LaxVectorConversions = 0; 973 Opts.DefaultFPContract = 1; 974 } 975 976 if (LangStd == LangStandard::lang_cuda) 977 Opts.CUDA = 1; 978 979 // OpenCL and C++ both have bool, true, false keywords. 980 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; 981 982 // C++ has wchar_t keyword. 983 Opts.WChar = Opts.CPlusPlus; 984 985 Opts.GNUKeywords = Opts.GNUMode; 986 Opts.CXXOperatorNames = Opts.CPlusPlus; 987 988 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs 989 // is specified, or -std is set to a conforming mode. 990 Opts.Trigraphs = !Opts.GNUMode; 991 992 Opts.DollarIdents = !Opts.AsmPreprocessor; 993 } 994 995 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, 996 DiagnosticsEngine &Diags) { 997 // FIXME: Cleanup per-file based stuff. 998 LangStandard::Kind LangStd = LangStandard::lang_unspecified; 999 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { 1000 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue(Args)) 1001 #define LANGSTANDARD(id, name, desc, features) \ 1002 .Case(name, LangStandard::lang_##id) 1003 #include "clang/Frontend/LangStandards.def" 1004 .Default(LangStandard::lang_unspecified); 1005 if (LangStd == LangStandard::lang_unspecified) 1006 Diags.Report(diag::err_drv_invalid_value) 1007 << A->getAsString(Args) << A->getValue(Args); 1008 else { 1009 // Valid standard, check to make sure language and standard are compatable. 1010 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); 1011 switch (IK) { 1012 case IK_C: 1013 case IK_ObjC: 1014 case IK_PreprocessedC: 1015 case IK_PreprocessedObjC: 1016 if (!(Std.isC89() || Std.isC99())) 1017 Diags.Report(diag::err_drv_argument_not_allowed_with) 1018 << A->getAsString(Args) << "C/ObjC"; 1019 break; 1020 case IK_CXX: 1021 case IK_ObjCXX: 1022 case IK_PreprocessedCXX: 1023 case IK_PreprocessedObjCXX: 1024 if (!Std.isCPlusPlus()) 1025 Diags.Report(diag::err_drv_argument_not_allowed_with) 1026 << A->getAsString(Args) << "C++/ObjC++"; 1027 break; 1028 case IK_OpenCL: 1029 if (!Std.isC99()) 1030 Diags.Report(diag::err_drv_argument_not_allowed_with) 1031 << A->getAsString(Args) << "OpenCL"; 1032 break; 1033 case IK_CUDA: 1034 if (!Std.isCPlusPlus()) 1035 Diags.Report(diag::err_drv_argument_not_allowed_with) 1036 << A->getAsString(Args) << "CUDA"; 1037 break; 1038 default: 1039 break; 1040 } 1041 } 1042 } 1043 1044 // -cl-std only applies for OpenCL language standards. 1045 // Override the -std option in this case. 1046 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { 1047 LangStandard::Kind OpenCLLangStd 1048 = llvm::StringSwitch<LangStandard::Kind>(A->getValue(Args)) 1049 .Case("CL", LangStandard::lang_opencl) 1050 .Case("CL1.1", LangStandard::lang_opencl11) 1051 .Case("CL1.2", LangStandard::lang_opencl12) 1052 .Default(LangStandard::lang_unspecified); 1053 1054 if (OpenCLLangStd == LangStandard::lang_unspecified) { 1055 Diags.Report(diag::err_drv_invalid_value) 1056 << A->getAsString(Args) << A->getValue(Args); 1057 } 1058 else 1059 LangStd = OpenCLLangStd; 1060 } 1061 1062 CompilerInvocation::setLangDefaults(Opts, IK, LangStd); 1063 1064 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension 1065 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, 1066 // while a subset (the non-C++ GNU keywords) is provided by GCC's 1067 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single 1068 // name, as it doesn't seem a useful distinction. 1069 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, 1070 Opts.GNUKeywords); 1071 1072 if (Args.hasArg(OPT_fno_operator_names)) 1073 Opts.CXXOperatorNames = 0; 1074 1075 if (Opts.ObjC1) { 1076 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { 1077 StringRef value = arg->getValue(Args); 1078 if (Opts.ObjCRuntime.tryParse(value)) 1079 Diags.Report(diag::err_drv_unknown_objc_runtime) << value; 1080 } 1081 1082 if (Args.hasArg(OPT_fobjc_gc_only)) 1083 Opts.setGC(LangOptions::GCOnly); 1084 else if (Args.hasArg(OPT_fobjc_gc)) 1085 Opts.setGC(LangOptions::HybridGC); 1086 else if (Args.hasArg(OPT_fobjc_arc)) { 1087 Opts.ObjCAutoRefCount = 1; 1088 if (!Opts.ObjCRuntime.allowsARC()) 1089 Diags.Report(diag::err_arc_unsupported_on_runtime); 1090 1091 // Only set ObjCARCWeak if ARC is enabled. 1092 if (Args.hasArg(OPT_fobjc_runtime_has_weak)) 1093 Opts.ObjCARCWeak = 1; 1094 else 1095 Opts.ObjCARCWeak = Opts.ObjCRuntime.allowsWeak(); 1096 } 1097 1098 if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) 1099 Opts.ObjCInferRelatedResultType = 0; 1100 } 1101 1102 if (Args.hasArg(OPT_fgnu89_inline)) 1103 Opts.GNUInline = 1; 1104 1105 if (Args.hasArg(OPT_fapple_kext)) { 1106 if (!Opts.CPlusPlus) 1107 Diags.Report(diag::warn_c_kext); 1108 else 1109 Opts.AppleKext = 1; 1110 } 1111 1112 if (Args.hasArg(OPT_print_ivar_layout)) 1113 Opts.ObjCGCBitmapPrint = 1; 1114 if (Args.hasArg(OPT_fno_constant_cfstrings)) 1115 Opts.NoConstantCFStrings = 1; 1116 1117 if (Args.hasArg(OPT_faltivec)) 1118 Opts.AltiVec = 1; 1119 1120 if (Args.hasArg(OPT_pthread)) 1121 Opts.POSIXThreads = 1; 1122 1123 if (Args.hasArg(OPT_fdelayed_template_parsing)) 1124 Opts.DelayedTemplateParsing = 1; 1125 1126 StringRef Vis = Args.getLastArgValue(OPT_fvisibility, "default"); 1127 if (Vis == "default") 1128 Opts.setVisibilityMode(DefaultVisibility); 1129 else if (Vis == "hidden") 1130 Opts.setVisibilityMode(HiddenVisibility); 1131 else if (Vis == "protected") 1132 // FIXME: diagnose if target does not support protected visibility 1133 Opts.setVisibilityMode(ProtectedVisibility); 1134 else 1135 Diags.Report(diag::err_drv_invalid_value) 1136 << Args.getLastArg(OPT_fvisibility)->getAsString(Args) << Vis; 1137 1138 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { 1139 StringRef Val = A->getValue(Args); 1140 if (Val == "fast") 1141 Opts.setFPContractMode(LangOptions::FPC_Fast); 1142 else if (Val == "on") 1143 Opts.setFPContractMode(LangOptions::FPC_On); 1144 else if (Val == "off") 1145 Opts.setFPContractMode(LangOptions::FPC_Off); 1146 else 1147 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; 1148 } 1149 1150 if (Args.hasArg(OPT_fvisibility_inlines_hidden)) 1151 Opts.InlineVisibilityHidden = 1; 1152 1153 if (Args.hasArg(OPT_ftrapv)) { 1154 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); 1155 // Set the handler, if one is specified. 1156 Opts.OverflowHandler = 1157 Args.getLastArgValue(OPT_ftrapv_handler); 1158 } 1159 else if (Args.hasArg(OPT_fwrapv)) 1160 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); 1161 1162 if (Args.hasArg(OPT_trigraphs)) 1163 Opts.Trigraphs = 1; 1164 1165 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, 1166 OPT_fno_dollars_in_identifiers, 1167 Opts.DollarIdents); 1168 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); 1169 Opts.MicrosoftExt 1170 = Args.hasArg(OPT_fms_extensions) || Args.hasArg(OPT_fms_compatibility); 1171 Opts.MicrosoftMode = Args.hasArg(OPT_fms_compatibility); 1172 Opts.MSCVersion = Args.getLastArgIntValue(OPT_fmsc_version, 0, Diags); 1173 Opts.Borland = Args.hasArg(OPT_fborland_extensions); 1174 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); 1175 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, 1176 Opts.ConstStrings); 1177 if (Args.hasArg(OPT_fno_lax_vector_conversions)) 1178 Opts.LaxVectorConversions = 0; 1179 if (Args.hasArg(OPT_fno_threadsafe_statics)) 1180 Opts.ThreadsafeStatics = 0; 1181 Opts.Exceptions = Args.hasArg(OPT_fexceptions); 1182 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); 1183 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); 1184 Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); 1185 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); 1186 1187 Opts.RTTI = !Args.hasArg(OPT_fno_rtti); 1188 Opts.Blocks = Args.hasArg(OPT_fblocks); 1189 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); 1190 Opts.Modules = Args.hasArg(OPT_fmodules); 1191 Opts.CharIsSigned = !Args.hasArg(OPT_fno_signed_char); 1192 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); 1193 Opts.ShortWChar = Args.hasArg(OPT_fshort_wchar); 1194 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); 1195 Opts.Freestanding = Args.hasArg(OPT_ffreestanding); 1196 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; 1197 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); 1198 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); 1199 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); 1200 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); 1201 Opts.MathErrno = Args.hasArg(OPT_fmath_errno); 1202 Opts.InstantiationDepth = Args.getLastArgIntValue(OPT_ftemplate_depth, 512, 1203 Diags); 1204 Opts.ConstexprCallDepth = Args.getLastArgIntValue(OPT_fconstexpr_depth, 512, 1205 Diags); 1206 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); 1207 Opts.NumLargeByValueCopy = Args.getLastArgIntValue(OPT_Wlarge_by_value_copy_EQ, 1208 0, Diags); 1209 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); 1210 Opts.ObjCConstantStringClass = 1211 Args.getLastArgValue(OPT_fconstant_string_class); 1212 Opts.ObjCDefaultSynthProperties = 1213 Args.hasArg(OPT_fobjc_default_synthesize_properties); 1214 Opts.CatchUndefined = Args.hasArg(OPT_fcatch_undefined_behavior); 1215 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); 1216 Opts.PackStruct = Args.getLastArgIntValue(OPT_fpack_struct_EQ, 0, Diags); 1217 Opts.PICLevel = Args.getLastArgIntValue(OPT_pic_level, 0, Diags); 1218 Opts.PIELevel = Args.getLastArgIntValue(OPT_pie_level, 0, Diags); 1219 Opts.Static = Args.hasArg(OPT_static_define); 1220 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); 1221 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple 1222 || Args.hasArg(OPT_fdump_record_layouts); 1223 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); 1224 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); 1225 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); 1226 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); 1227 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); 1228 Opts.MRTD = Args.hasArg(OPT_mrtd); 1229 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); 1230 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); 1231 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); 1232 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); 1233 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); 1234 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); 1235 Opts.AddressSanitizer = Args.hasArg(OPT_faddress_sanitizer); 1236 Opts.ThreadSanitizer = Args.hasArg(OPT_fthread_sanitizer); 1237 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); 1238 Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name); 1239 1240 // Record whether the __DEPRECATED define was requested. 1241 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, 1242 OPT_fno_deprecated_macro, 1243 Opts.Deprecated); 1244 1245 // FIXME: Eliminate this dependency. 1246 unsigned Opt = getOptimizationLevel(Args, IK, Diags), 1247 OptSize = getOptimizationLevelSize(Args, IK, Diags); 1248 Opts.Optimize = Opt != 0; 1249 Opts.OptimizeSize = OptSize != 0; 1250 1251 // This is the __NO_INLINE__ define, which just depends on things like the 1252 // optimization level and -fno-inline, not actually whether the backend has 1253 // inlining enabled. 1254 Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); 1255 1256 Opts.FastMath = Args.hasArg(OPT_ffast_math); 1257 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only); 1258 1259 Opts.EmitMicrosoftInlineAsm = Args.hasArg(OPT_fenable_experimental_ms_inline_asm); 1260 1261 Opts.RetainCommentsFromSystemHeaders = 1262 Args.hasArg(OPT_fretain_comments_from_system_headers); 1263 1264 unsigned SSP = Args.getLastArgIntValue(OPT_stack_protector, 0, Diags); 1265 switch (SSP) { 1266 default: 1267 Diags.Report(diag::err_drv_invalid_value) 1268 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; 1269 break; 1270 case 0: Opts.setStackProtector(LangOptions::SSPOff); break; 1271 case 1: Opts.setStackProtector(LangOptions::SSPOn); break; 1272 case 2: Opts.setStackProtector(LangOptions::SSPReq); break; 1273 } 1274 } 1275 1276 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, 1277 FileManager &FileMgr, 1278 DiagnosticsEngine &Diags) { 1279 using namespace options; 1280 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); 1281 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); 1282 if (const Arg *A = Args.getLastArg(OPT_token_cache)) 1283 Opts.TokenCache = A->getValue(Args); 1284 else 1285 Opts.TokenCache = Opts.ImplicitPTHInclude; 1286 Opts.UsePredefines = !Args.hasArg(OPT_undef); 1287 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); 1288 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); 1289 1290 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); 1291 for (arg_iterator it = Args.filtered_begin(OPT_error_on_deserialized_pch_decl), 1292 ie = Args.filtered_end(); it != ie; ++it) { 1293 const Arg *A = *it; 1294 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue(Args)); 1295 } 1296 1297 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { 1298 StringRef Value(A->getValue(Args)); 1299 size_t Comma = Value.find(','); 1300 unsigned Bytes = 0; 1301 unsigned EndOfLine = 0; 1302 1303 if (Comma == StringRef::npos || 1304 Value.substr(0, Comma).getAsInteger(10, Bytes) || 1305 Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) 1306 Diags.Report(diag::err_drv_preamble_format); 1307 else { 1308 Opts.PrecompiledPreambleBytes.first = Bytes; 1309 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); 1310 } 1311 } 1312 1313 // Add macros from the command line. 1314 for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U), 1315 ie = Args.filtered_end(); it != ie; ++it) { 1316 if ((*it)->getOption().matches(OPT_D)) 1317 Opts.addMacroDef((*it)->getValue(Args)); 1318 else 1319 Opts.addMacroUndef((*it)->getValue(Args)); 1320 } 1321 1322 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); 1323 1324 // Add the ordered list of -includes. 1325 for (arg_iterator it = Args.filtered_begin(OPT_include, OPT_include_pch, 1326 OPT_include_pth), 1327 ie = Args.filtered_end(); it != ie; ++it) { 1328 const Arg *A = *it; 1329 Opts.Includes.push_back(A->getValue(Args)); 1330 } 1331 1332 for (arg_iterator it = Args.filtered_begin(OPT_chain_include), 1333 ie = Args.filtered_end(); it != ie; ++it) { 1334 const Arg *A = *it; 1335 Opts.ChainedIncludes.push_back(A->getValue(Args)); 1336 } 1337 1338 // Include 'altivec.h' if -faltivec option present 1339 if (Args.hasArg(OPT_faltivec)) 1340 Opts.Includes.push_back("altivec.h"); 1341 1342 for (arg_iterator it = Args.filtered_begin(OPT_remap_file), 1343 ie = Args.filtered_end(); it != ie; ++it) { 1344 const Arg *A = *it; 1345 std::pair<StringRef,StringRef> Split = 1346 StringRef(A->getValue(Args)).split(';'); 1347 1348 if (Split.second.empty()) { 1349 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); 1350 continue; 1351 } 1352 1353 Opts.addRemappedFile(Split.first, Split.second); 1354 } 1355 1356 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { 1357 StringRef Name = A->getValue(Args); 1358 unsigned Library = llvm::StringSwitch<unsigned>(Name) 1359 .Case("libc++", ARCXX_libcxx) 1360 .Case("libstdc++", ARCXX_libstdcxx) 1361 .Case("none", ARCXX_nolib) 1362 .Default(~0U); 1363 if (Library == ~0U) 1364 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; 1365 else 1366 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; 1367 } 1368 } 1369 1370 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, 1371 ArgList &Args) { 1372 using namespace options; 1373 Opts.ShowCPP = !Args.hasArg(OPT_dM); 1374 Opts.ShowComments = Args.hasArg(OPT_C); 1375 Opts.ShowLineMarkers = !Args.hasArg(OPT_P); 1376 Opts.ShowMacroComments = Args.hasArg(OPT_CC); 1377 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); 1378 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); 1379 } 1380 1381 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) { 1382 using namespace options; 1383 Opts.ABI = Args.getLastArgValue(OPT_target_abi); 1384 Opts.CXXABI = Args.getLastArgValue(OPT_cxx_abi); 1385 Opts.CPU = Args.getLastArgValue(OPT_target_cpu); 1386 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); 1387 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); 1388 Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); 1389 1390 // Use the default target triple if unspecified. 1391 if (Opts.Triple.empty()) 1392 Opts.Triple = llvm::sys::getDefaultTargetTriple(); 1393 } 1394 1395 // 1396 1397 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, 1398 const char *const *ArgBegin, 1399 const char *const *ArgEnd, 1400 DiagnosticsEngine &Diags) { 1401 bool Success = true; 1402 1403 // Parse the arguments. 1404 OwningPtr<OptTable> Opts(createDriverOptTable()); 1405 unsigned MissingArgIndex, MissingArgCount; 1406 OwningPtr<InputArgList> Args( 1407 Opts->ParseArgs(ArgBegin, ArgEnd,MissingArgIndex, MissingArgCount)); 1408 1409 // Check for missing argument error. 1410 if (MissingArgCount) { 1411 Diags.Report(diag::err_drv_missing_argument) 1412 << Args->getArgString(MissingArgIndex) << MissingArgCount; 1413 Success = false; 1414 } 1415 1416 // Issue errors on unknown arguments. 1417 for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN), 1418 ie = Args->filtered_end(); it != ie; ++it) { 1419 Diags.Report(diag::err_drv_unknown_argument) << (*it)->getAsString(*Args); 1420 Success = false; 1421 } 1422 1423 // Issue errors on arguments that are not valid for CC1. 1424 for (ArgList::iterator I = Args->begin(), E = Args->end(); 1425 I != E; ++I) { 1426 if (!(*I)->getOption().hasFlag(options::CC1Option)) { 1427 Diags.Report(diag::err_drv_unknown_argument) << (*I)->getAsString(*Args); 1428 Success = false; 1429 } 1430 } 1431 1432 Success = ParseAnalyzerArgs(*Res.getAnalyzerOpts(), *Args, Diags) && Success; 1433 Success = ParseMigratorArgs(Res.getMigratorOpts(), *Args) && Success; 1434 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args); 1435 Success = ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, &Diags) 1436 && Success; 1437 ParseFileSystemArgs(Res.getFileSystemOpts(), *Args); 1438 // FIXME: We shouldn't have to pass the DashX option around here 1439 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags); 1440 Success = ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, DashX, Diags) 1441 && Success; 1442 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args); 1443 if (DashX != IK_AST && DashX != IK_LLVM_IR) { 1444 ParseLangArgs(*Res.getLangOpts(), *Args, DashX, Diags); 1445 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) 1446 Res.getLangOpts()->ObjCExceptions = 1; 1447 } 1448 // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of 1449 // PCH file and find the original header name. Remove the need to do that in 1450 // ParsePreprocessorArgs and remove the FileManager 1451 // parameters from the function and the "FileManager.h" #include. 1452 FileManager FileMgr(Res.getFileSystemOpts()); 1453 ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, FileMgr, Diags); 1454 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args); 1455 ParseTargetArgs(Res.getTargetOpts(), *Args); 1456 1457 return Success; 1458 } 1459 1460 namespace { 1461 1462 class ModuleSignature { 1463 llvm::SmallVector<uint64_t, 16> Data; 1464 unsigned CurBit; 1465 uint64_t CurValue; 1466 1467 public: 1468 ModuleSignature() : CurBit(0), CurValue(0) { } 1469 1470 void add(uint64_t Value, unsigned Bits); 1471 void add(StringRef Value); 1472 void flush(); 1473 1474 llvm::APInt getAsInteger() const; 1475 }; 1476 } 1477 1478 void ModuleSignature::add(uint64_t Value, unsigned int NumBits) { 1479 CurValue |= Value << CurBit; 1480 if (CurBit + NumBits < 64) { 1481 CurBit += NumBits; 1482 return; 1483 } 1484 1485 // Add the current word. 1486 Data.push_back(CurValue); 1487 1488 if (CurBit) 1489 CurValue = Value >> (64-CurBit); 1490 else 1491 CurValue = 0; 1492 CurBit = (CurBit+NumBits) & 63; 1493 } 1494 1495 void ModuleSignature::flush() { 1496 if (CurBit == 0) 1497 return; 1498 1499 Data.push_back(CurValue); 1500 CurBit = 0; 1501 CurValue = 0; 1502 } 1503 1504 void ModuleSignature::add(StringRef Value) { 1505 for (StringRef::iterator I = Value.begin(), IEnd = Value.end(); I != IEnd;++I) 1506 add(*I, 8); 1507 } 1508 1509 llvm::APInt ModuleSignature::getAsInteger() const { 1510 return llvm::APInt(Data.size() * 64, Data); 1511 } 1512 1513 std::string CompilerInvocation::getModuleHash() const { 1514 ModuleSignature Signature; 1515 1516 // Start the signature with the compiler version. 1517 // FIXME: The full version string can be quite long. Omit it from the 1518 // module hash for now to avoid failures where the path name becomes too 1519 // long. An MD5 or similar checksum would work well here. 1520 // Signature.add(getClangFullRepositoryVersion()); 1521 1522 // Extend the signature with the language options 1523 #define LANGOPT(Name, Bits, Default, Description) \ 1524 Signature.add(LangOpts->Name, Bits); 1525 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 1526 Signature.add(static_cast<unsigned>(LangOpts->get##Name()), Bits); 1527 #define BENIGN_LANGOPT(Name, Bits, Default, Description) 1528 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) 1529 #include "clang/Basic/LangOptions.def" 1530 1531 // Extend the signature with the target triple 1532 // FIXME: Add target options. 1533 llvm::Triple T(TargetOpts->Triple); 1534 Signature.add((unsigned)T.getArch(), 5); 1535 Signature.add((unsigned)T.getVendor(), 4); 1536 Signature.add((unsigned)T.getOS(), 5); 1537 Signature.add((unsigned)T.getEnvironment(), 4); 1538 1539 // Extend the signature with preprocessor options. 1540 Signature.add(getPreprocessorOpts().UsePredefines, 1); 1541 Signature.add(getPreprocessorOpts().DetailedRecord, 1); 1542 1543 // Hash the preprocessor defines. 1544 // FIXME: This is terrible. Use an MD5 sum of the preprocessor defines. 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 if (!I->second) 1551 MacroDefs.push_back(I->first); 1552 } 1553 llvm::array_pod_sort(MacroDefs.begin(), MacroDefs.end()); 1554 1555 unsigned PPHashResult = 0; 1556 for (unsigned I = 0, N = MacroDefs.size(); I != N; ++I) 1557 PPHashResult = llvm::HashString(MacroDefs[I], PPHashResult); 1558 Signature.add(PPHashResult, 32); 1559 1560 // We've generated the signature. Treat it as one large APInt that we'll 1561 // encode in base-36 and return. 1562 Signature.flush(); 1563 return Signature.getAsInteger().toString(36, /*Signed=*/false); 1564 } 1565