//===--- CompilerInvocation.cpp -------------------------------------------===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// #include "clang/Frontend/CompilerInvocation.h" #include "clang/Basic/Diagnostic.h" #include "clang/Basic/FileManager.h" #include "clang/Basic/Version.h" #include "clang/Driver/Arg.h" #include "clang/Driver/ArgList.h" #include "clang/Driver/DriverDiagnostic.h" #include "clang/Driver/OptTable.h" #include "clang/Driver/Option.h" #include "clang/Driver/Options.h" #include "clang/Frontend/LangStandard.h" #include "clang/Lex/HeaderSearchOptions.h" #include "clang/Serialization/ASTReader.h" #include "llvm/ADT/Hashing.h" #include "llvm/ADT/OwningPtr.h" #include "llvm/ADT/SmallVector.h" #include "llvm/ADT/StringExtras.h" #include "llvm/ADT/StringSwitch.h" #include "llvm/ADT/Triple.h" #include "llvm/Support/ErrorHandling.h" #include "llvm/Support/Host.h" #include "llvm/Support/Path.h" #include "llvm/Support/system_error.h" using namespace clang; //===----------------------------------------------------------------------===// // Initialization. //===----------------------------------------------------------------------===// CompilerInvocationBase::CompilerInvocationBase() : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()), DiagnosticOpts(new DiagnosticOptions()), HeaderSearchOpts(new HeaderSearchOptions()), PreprocessorOpts(new PreprocessorOptions()) {} CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X) : RefCountedBase(), LangOpts(new LangOptions(*X.getLangOpts())), TargetOpts(new TargetOptions(X.getTargetOpts())), DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())), HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())), PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {} //===----------------------------------------------------------------------===// // Deserialization (from args) //===----------------------------------------------------------------------===// using namespace clang::driver; using namespace clang::driver::options; // static unsigned getOptimizationLevel(ArgList &Args, InputKind IK, DiagnosticsEngine &Diags) { unsigned DefaultOpt = 0; if (IK == IK_OpenCL && !Args.hasArg(OPT_cl_opt_disable)) DefaultOpt = 2; if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { if (A->getOption().matches(options::OPT_O0)) return 0; if (A->getOption().matches(options::OPT_Ofast)) return 3; assert (A->getOption().matches(options::OPT_O)); StringRef S(A->getValue()); if (S == "s" || S == "z" || S.empty()) return 2; return Args.getLastArgIntValue(OPT_O, DefaultOpt, Diags); } return DefaultOpt; } static unsigned getOptimizationLevelSize(ArgList &Args) { if (Arg *A = Args.getLastArg(options::OPT_O_Group)) { if (A->getOption().matches(options::OPT_O)) { switch (A->getValue()[0]) { default: return 0; case 's': return 1; case 'z': return 2; } } } return 0; } static void addWarningArgs(ArgList &Args, std::vector &Warnings) { for (arg_iterator I = Args.filtered_begin(OPT_W_Group), E = Args.filtered_end(); I != E; ++I) { Arg *A = *I; // If the argument is a pure flag, add its name (minus the "W" at the beginning) // to the warning list. Else, add its value (for the OPT_W case). if (A->getOption().getKind() == Option::FlagClass) { Warnings.push_back(A->getOption().getName().substr(1)); } else { for (unsigned Idx = 0, End = A->getNumValues(); Idx < End; ++Idx) { StringRef V = A->getValue(Idx); // "-Wl," and such are not warning options. // FIXME: Should be handled by putting these in separate flags. if (V.startswith("l,") || V.startswith("a,") || V.startswith("p,")) continue; Warnings.push_back(V); } } } } static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args, DiagnosticsEngine &Diags) { using namespace options; bool Success = true; if (Arg *A = Args.getLastArg(OPT_analyzer_store)) { StringRef Name = A->getValue(); AnalysisStores Value = llvm::StringSwitch(Name) #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \ .Case(CMDFLAG, NAME##Model) #include "clang/StaticAnalyzer/Core/Analyses.def" .Default(NumStores); if (Value == NumStores) { Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; Success = false; } else { Opts.AnalysisStoreOpt = Value; } } if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) { StringRef Name = A->getValue(); AnalysisConstraints Value = llvm::StringSwitch(Name) #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \ .Case(CMDFLAG, NAME##Model) #include "clang/StaticAnalyzer/Core/Analyses.def" .Default(NumConstraints); if (Value == NumConstraints) { Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; Success = false; } else { Opts.AnalysisConstraintsOpt = Value; } } if (Arg *A = Args.getLastArg(OPT_analyzer_output)) { StringRef Name = A->getValue(); AnalysisDiagClients Value = llvm::StringSwitch(Name) #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREAT) \ .Case(CMDFLAG, PD_##NAME) #include "clang/StaticAnalyzer/Core/Analyses.def" .Default(NUM_ANALYSIS_DIAG_CLIENTS); if (Value == NUM_ANALYSIS_DIAG_CLIENTS) { Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; Success = false; } else { Opts.AnalysisDiagOpt = Value; } } if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) { StringRef Name = A->getValue(); AnalysisPurgeMode Value = llvm::StringSwitch(Name) #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \ .Case(CMDFLAG, NAME) #include "clang/StaticAnalyzer/Core/Analyses.def" .Default(NumPurgeModes); if (Value == NumPurgeModes) { Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; Success = false; } else { Opts.AnalysisPurgeOpt = Value; } } if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) { StringRef Name = A->getValue(); AnalysisInliningMode Value = llvm::StringSwitch(Name) #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \ .Case(CMDFLAG, NAME) #include "clang/StaticAnalyzer/Core/Analyses.def" .Default(NumInliningModes); if (Value == NumInliningModes) { Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; Success = false; } else { Opts.InliningMode = Value; } } Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help); Opts.visualizeExplodedGraphWithGraphViz = Args.hasArg(OPT_analyzer_viz_egraph_graphviz); Opts.visualizeExplodedGraphWithUbiGraph = Args.hasArg(OPT_analyzer_viz_egraph_ubigraph); Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted); Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers); Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress); Opts.AnalyzeNestedBlocks = Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks); Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume); Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function); Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG); Opts.TrimGraph = Args.hasArg(OPT_trim_egraph); Opts.maxBlockVisitOnPath = Args.getLastArgIntValue(OPT_analyzer_max_loop, 4, Diags); Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); Opts.InlineMaxStackDepth = Args.getLastArgIntValue(OPT_analyzer_inline_max_stack_depth, Opts.InlineMaxStackDepth, Diags); Opts.CheckersControlList.clear(); for (arg_iterator it = Args.filtered_begin(OPT_analyzer_checker, OPT_analyzer_disable_checker), ie = Args.filtered_end(); it != ie; ++it) { const Arg *A = *it; A->claim(); bool enable = (A->getOption().getID() == OPT_analyzer_checker); // We can have a list of comma separated checker names, e.g: // '-analyzer-checker=cocoa,unix' StringRef checkerList = A->getValue(); SmallVector checkers; checkerList.split(checkers, ","); for (unsigned i = 0, e = checkers.size(); i != e; ++i) Opts.CheckersControlList.push_back(std::make_pair(checkers[i], enable)); } // Go through the analyzer configuration options. for (arg_iterator it = Args.filtered_begin(OPT_analyzer_config), ie = Args.filtered_end(); it != ie; ++it) { const Arg *A = *it; A->claim(); // We can have a list of comma separated config names, e.g: // '-analyzer-config key1=val1,key2=val2' StringRef configList = A->getValue(); SmallVector configVals; configList.split(configVals, ","); for (unsigned i = 0, e = configVals.size(); i != e; ++i) { StringRef key, val; llvm::tie(key, val) = configVals[i].split("="); if (val.empty()) { Diags.Report(SourceLocation(), diag::err_analyzer_config_no_value) << configVals[i]; Success = false; break; } if (val.find('=') != StringRef::npos) { Diags.Report(SourceLocation(), diag::err_analyzer_config_multiple_values) << configVals[i]; Success = false; break; } Opts.Config[key] = val; } } return Success; } static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) { Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error); Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal); return true; } static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) { Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands); Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments); } static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, DiagnosticsEngine &Diags) { using namespace options; bool Success = true; unsigned OptLevel = getOptimizationLevel(Args, IK, Diags); if (OptLevel > 3) { Diags.Report(diag::err_drv_invalid_value) << Args.getLastArg(OPT_O)->getAsString(Args) << OptLevel; OptLevel = 3; Success = false; } Opts.OptimizationLevel = OptLevel; // We must always run at least the always inlining pass. Opts.setInlining( (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining : CodeGenOptions::OnlyAlwaysInlining); // -fno-inline-functions overrides OptimizationLevel > 1. Opts.NoInline = Args.hasArg(OPT_fno_inline); Opts.setInlining(Args.hasArg(OPT_fno_inline_functions) ? CodeGenOptions::OnlyAlwaysInlining : Opts.getInlining()); if (Args.hasArg(OPT_gline_tables_only)) { Opts.setDebugInfo(CodeGenOptions::DebugLineTablesOnly); } else if (Args.hasArg(OPT_g_Flag)) { if (Args.hasFlag(OPT_flimit_debug_info, OPT_fno_limit_debug_info, true)) Opts.setDebugInfo(CodeGenOptions::LimitedDebugInfo); else Opts.setDebugInfo(CodeGenOptions::FullDebugInfo); } Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone); Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables); Opts.UseRegisterSizedBitfieldAccess = Args.hasArg( OPT_fuse_register_sized_bitfield_access); Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing); Opts.StructPathTBAA = Args.hasArg(OPT_struct_path_tbaa); Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags); Opts.MergeAllConstants = !Args.hasArg(OPT_fno_merge_all_constants); Opts.NoCommon = Args.hasArg(OPT_fno_common); Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float); Opts.OptimizeSize = getOptimizationLevelSize(Args); Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) || Args.hasArg(OPT_ffreestanding)); Opts.UnrollLoops = Args.hasArg(OPT_funroll_loops) || (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize); Opts.Autolink = !Args.hasArg(OPT_fno_autolink); Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); Opts.CUDAIsDevice = Args.hasArg(OPT_fcuda_is_device); Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); Opts.CodeModel = Args.getLastArgValue(OPT_mcode_model); Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim); Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); Opts.HiddenWeakVTables = Args.hasArg(OPT_fhidden_weak_vtables); Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable); Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision); Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) || Args.hasArg(OPT_cl_finite_math_only)|| Args.hasArg(OPT_cl_fast_relaxed_math)); Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) || Args.hasArg(OPT_cl_finite_math_only)|| Args.hasArg(OPT_cl_fast_relaxed_math)); Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); Opts.NumRegisterParameters = Args.getLastArgIntValue(OPT_mregparm, 0, Diags); Opts.NoGlobalMerge = Args.hasArg(OPT_mno_global_merge); Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); Opts.NoDwarf2CFIAsm = Args.hasArg(OPT_fno_dwarf2_cfi_asm); Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); Opts.SoftFloat = Args.hasArg(OPT_msoft_float); Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || Args.hasArg(OPT_cl_unsafe_math_optimizations) || Args.hasArg(OPT_cl_fast_relaxed_math); Opts.UnwindTables = Args.hasArg(OPT_munwind_tables); Opts.RelocationModel = Args.getLastArgValue(OPT_mrelocation_model, "pic"); Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections); Opts.DataSections = Args.hasArg(OPT_fdata_sections); Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); Opts.SanitizeRecover = !Args.hasArg(OPT_fno_sanitize_recover); Opts.DisableGCov = Args.hasArg(OPT_test_coverage); Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data); Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes); if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) { Opts.CoverageFile = Args.getLastArgValue(OPT_coverage_file); Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum); Opts.CoverageNoFunctionNamesInData = Args.hasArg(OPT_coverage_no_function_names_in_data); if (Args.hasArg(OPT_coverage_version_EQ)) { StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ); if (CoverageVersion.size() != 4) { Diags.Report(diag::err_drv_invalid_value) << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args) << CoverageVersion; } else { memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4); } } } Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions); Opts.InstrumentForProfiling = Args.hasArg(OPT_pg); Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info); Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); Opts.LinkBitcodeFile = Args.getLastArgValue(OPT_mlink_bitcode_file); Opts.SanitizerBlacklistFile = Args.getLastArgValue(OPT_fsanitize_blacklist); Opts.SanitizeMemoryTrackOrigins = Args.hasArg(OPT_fsanitize_memory_track_origins); Opts.SanitizeAddressZeroBaseShadow = Args.hasArg(OPT_fsanitize_address_zero_base_shadow); Opts.SanitizeUndefinedTrapOnError = Args.hasArg(OPT_fsanitize_undefined_trap_on_error); Opts.SSPBufferSize = Args.getLastArgIntValue(OPT_stack_protector_buffer_size, 8, Diags); Opts.StackRealignment = Args.hasArg(OPT_mstackrealign); if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) { StringRef Val = A->getValue(); unsigned StackAlignment = Opts.StackAlignment; Val.getAsInteger(10, StackAlignment); Opts.StackAlignment = StackAlignment; } if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { StringRef Name = A->getValue(); unsigned Method = llvm::StringSwitch(Name) .Case("legacy", CodeGenOptions::Legacy) .Case("non-legacy", CodeGenOptions::NonLegacy) .Case("mixed", CodeGenOptions::Mixed) .Default(~0U); if (Method == ~0U) { Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; Success = false; } else { Opts.setObjCDispatchMethod( static_cast(Method)); } } if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { StringRef Name = A->getValue(); unsigned Model = llvm::StringSwitch(Name) .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel) .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel) .Case("initial-exec", CodeGenOptions::InitialExecTLSModel) .Case("local-exec", CodeGenOptions::LocalExecTLSModel) .Default(~0U); if (Model == ~0U) { Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; Success = false; } else { Opts.setDefaultTLSModel(static_cast(Model)); } } if (Arg *A = Args.getLastArg(OPT_ffp_contract)) { StringRef Val = A->getValue(); if (Val == "fast") Opts.setFPContractMode(CodeGenOptions::FPC_Fast); else if (Val == "on") Opts.setFPContractMode(CodeGenOptions::FPC_On); else if (Val == "off") Opts.setFPContractMode(CodeGenOptions::FPC_Off); else Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val; } return Success; } static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts, ArgList &Args) { using namespace options; Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file); Opts.Targets = Args.getAllArgValues(OPT_MT); Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps); Opts.UsePhonyTargets = Args.hasArg(OPT_MP); Opts.ShowHeaderIncludes = Args.hasArg(OPT_H); Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file); Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG); Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); } bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, DiagnosticsEngine *Diags) { using namespace options; bool Success = true; Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); Opts.DiagnosticSerializationFile = Args.getLastArgValue(OPT_diagnostic_serialized_file); Opts.IgnoreWarnings = Args.hasArg(OPT_w); Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros); Opts.Pedantic = Args.hasArg(OPT_pedantic); Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors); Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics); Opts.ShowColors = Args.hasArg(OPT_fcolor_diagnostics); Opts.ShowColumn = Args.hasFlag(OPT_fshow_column, OPT_fno_show_column, /*Default=*/true); Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info); Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location); Opts.ShowOptionNames = Args.hasArg(OPT_fdiagnostics_show_option); // Default behavior is to not to show note include stacks. Opts.ShowNoteIncludeStack = false; if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack, OPT_fno_diagnostics_show_note_include_stack)) if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack)) Opts.ShowNoteIncludeStack = true; StringRef ShowOverloads = Args.getLastArgValue(OPT_fshow_overloads_EQ, "all"); if (ShowOverloads == "best") Opts.setShowOverloads(Ovl_Best); else if (ShowOverloads == "all") Opts.setShowOverloads(Ovl_All); else { Success = false; if (Diags) Diags->Report(diag::err_drv_invalid_value) << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args) << ShowOverloads; } StringRef ShowCategory = Args.getLastArgValue(OPT_fdiagnostics_show_category, "none"); if (ShowCategory == "none") Opts.ShowCategories = 0; else if (ShowCategory == "id") Opts.ShowCategories = 1; else if (ShowCategory == "name") Opts.ShowCategories = 2; else { Success = false; if (Diags) Diags->Report(diag::err_drv_invalid_value) << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args) << ShowCategory; } StringRef Format = Args.getLastArgValue(OPT_fdiagnostics_format, "clang"); if (Format == "clang") Opts.setFormat(DiagnosticOptions::Clang); else if (Format == "msvc") Opts.setFormat(DiagnosticOptions::Msvc); else if (Format == "vi") Opts.setFormat(DiagnosticOptions::Vi); else { Success = false; if (Diags) Diags->Report(diag::err_drv_invalid_value) << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args) << Format; } Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info); Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits); Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location); Opts.VerifyDiagnostics = Args.hasArg(OPT_verify); Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); Opts.ErrorLimit = Args.getLastArgIntValue(OPT_ferror_limit, 0, Diags); Opts.MacroBacktraceLimit = Args.getLastArgIntValue(OPT_fmacro_backtrace_limit, DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); Opts.TemplateBacktraceLimit = Args.getLastArgIntValue(OPT_ftemplate_backtrace_limit, DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); Opts.ConstexprBacktraceLimit = Args.getLastArgIntValue(OPT_fconstexpr_backtrace_limit, DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); Opts.TabStop = Args.getLastArgIntValue(OPT_ftabstop, DiagnosticOptions::DefaultTabStop, Diags); if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) { Opts.TabStop = DiagnosticOptions::DefaultTabStop; if (Diags) Diags->Report(diag::warn_ignoring_ftabstop_value) << Opts.TabStop << DiagnosticOptions::DefaultTabStop; } Opts.MessageLength = Args.getLastArgIntValue(OPT_fmessage_length, 0, Diags); addWarningArgs(Args, Opts.Warnings); return Success; } static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); } static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args, DiagnosticsEngine &Diags) { using namespace options; Opts.ProgramAction = frontend::ParseSyntaxOnly; if (const Arg *A = Args.getLastArg(OPT_Action_Group)) { switch (A->getOption().getID()) { default: llvm_unreachable("Invalid option in group!"); case OPT_ast_list: Opts.ProgramAction = frontend::ASTDeclList; break; case OPT_ast_dump: Opts.ProgramAction = frontend::ASTDump; break; case OPT_ast_dump_xml: Opts.ProgramAction = frontend::ASTDumpXML; break; case OPT_ast_print: Opts.ProgramAction = frontend::ASTPrint; break; case OPT_ast_view: Opts.ProgramAction = frontend::ASTView; break; case OPT_dump_raw_tokens: Opts.ProgramAction = frontend::DumpRawTokens; break; case OPT_dump_tokens: Opts.ProgramAction = frontend::DumpTokens; break; case OPT_S: Opts.ProgramAction = frontend::EmitAssembly; break; case OPT_emit_llvm_bc: Opts.ProgramAction = frontend::EmitBC; break; case OPT_emit_html: Opts.ProgramAction = frontend::EmitHTML; break; case OPT_emit_llvm: Opts.ProgramAction = frontend::EmitLLVM; break; case OPT_emit_llvm_only: Opts.ProgramAction = frontend::EmitLLVMOnly; break; case OPT_emit_codegen_only: Opts.ProgramAction = frontend::EmitCodeGenOnly; break; case OPT_emit_obj: Opts.ProgramAction = frontend::EmitObj; break; case OPT_fixit_EQ: Opts.FixItSuffix = A->getValue(); // fall-through! case OPT_fixit: Opts.ProgramAction = frontend::FixIt; break; case OPT_emit_module: Opts.ProgramAction = frontend::GenerateModule; break; case OPT_emit_pch: Opts.ProgramAction = frontend::GeneratePCH; break; case OPT_emit_pth: Opts.ProgramAction = frontend::GeneratePTH; break; case OPT_init_only: Opts.ProgramAction = frontend::InitOnly; break; case OPT_fsyntax_only: Opts.ProgramAction = frontend::ParseSyntaxOnly; break; case OPT_module_file_info: Opts.ProgramAction = frontend::ModuleFileInfo; break; case OPT_print_decl_contexts: Opts.ProgramAction = frontend::PrintDeclContext; break; case OPT_print_preamble: Opts.ProgramAction = frontend::PrintPreamble; break; case OPT_E: Opts.ProgramAction = frontend::PrintPreprocessedInput; break; case OPT_rewrite_macros: Opts.ProgramAction = frontend::RewriteMacros; break; case OPT_rewrite_objc: Opts.ProgramAction = frontend::RewriteObjC; break; case OPT_rewrite_test: Opts.ProgramAction = frontend::RewriteTest; break; case OPT_analyze: Opts.ProgramAction = frontend::RunAnalysis; break; case OPT_migrate: Opts.ProgramAction = frontend::MigrateSource; break; case OPT_Eonly: Opts.ProgramAction = frontend::RunPreprocessorOnly; break; } } if (const Arg* A = Args.getLastArg(OPT_plugin)) { Opts.Plugins.push_back(A->getValue(0)); Opts.ProgramAction = frontend::PluginAction; Opts.ActionName = A->getValue(); for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), end = Args.filtered_end(); it != end; ++it) { if ((*it)->getValue(0) == Opts.ActionName) Opts.PluginArgs.push_back((*it)->getValue(1)); } } Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin); Opts.AddPluginArgs.resize(Opts.AddPluginActions.size()); for (int i = 0, e = Opts.AddPluginActions.size(); i != e; ++i) { for (arg_iterator it = Args.filtered_begin(OPT_plugin_arg), end = Args.filtered_end(); it != end; ++it) { if ((*it)->getValue(0) == Opts.AddPluginActions[i]) Opts.AddPluginArgs[i].push_back((*it)->getValue(1)); } } if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) { Opts.CodeCompletionAt = ParsedSourceLocation::FromString(A->getValue()); if (Opts.CodeCompletionAt.FileName.empty()) Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << A->getValue(); } Opts.DisableFree = Args.hasArg(OPT_disable_free); Opts.OutputFile = Args.getLastArgValue(OPT_o); Opts.Plugins = Args.getAllArgValues(OPT_load); Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch); Opts.ShowHelp = Args.hasArg(OPT_help); Opts.ShowStats = Args.hasArg(OPT_print_stats); Opts.ShowTimers = Args.hasArg(OPT_ftime_report); Opts.ShowVersion = Args.hasArg(OPT_version); Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge); Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm); Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can); Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings); Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile); Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp); Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; Opts.CodeCompleteOpts.IncludeMacros = Args.hasArg(OPT_code_completion_macros); Opts.CodeCompleteOpts.IncludeCodePatterns = Args.hasArg(OPT_code_completion_patterns); Opts.CodeCompleteOpts.IncludeGlobals = !Args.hasArg(OPT_no_code_completion_globals); Opts.CodeCompleteOpts.IncludeBriefComments = Args.hasArg(OPT_code_completion_brief_comments); Opts.OverrideRecordLayoutsFile = Args.getLastArgValue(OPT_foverride_record_layout_EQ); if (const Arg *A = Args.getLastArg(OPT_arcmt_check, OPT_arcmt_modify, OPT_arcmt_migrate)) { switch (A->getOption().getID()) { default: llvm_unreachable("missed a case"); case OPT_arcmt_check: Opts.ARCMTAction = FrontendOptions::ARCMT_Check; break; case OPT_arcmt_modify: Opts.ARCMTAction = FrontendOptions::ARCMT_Modify; break; case OPT_arcmt_migrate: Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate; break; } } Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory); Opts.ARCMTMigrateReportOut = Args.getLastArgValue(OPT_arcmt_migrate_report_output); Opts.ARCMTMigrateEmitARCErrors = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors); if (Args.hasArg(OPT_objcmt_migrate_literals)) Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals; if (Args.hasArg(OPT_objcmt_migrate_subscripting)) Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting; if (Opts.ARCMTAction != FrontendOptions::ARCMT_None && Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) { Diags.Report(diag::err_drv_argument_not_allowed_with) << "ARC migration" << "ObjC migration"; } InputKind DashX = IK_None; if (const Arg *A = Args.getLastArg(OPT_x)) { DashX = llvm::StringSwitch(A->getValue()) .Case("c", IK_C) .Case("cl", IK_OpenCL) .Case("cuda", IK_CUDA) .Case("c++", IK_CXX) .Case("objective-c", IK_ObjC) .Case("objective-c++", IK_ObjCXX) .Case("cpp-output", IK_PreprocessedC) .Case("assembler-with-cpp", IK_Asm) .Case("c++-cpp-output", IK_PreprocessedCXX) .Case("objective-c-cpp-output", IK_PreprocessedObjC) .Case("objc-cpp-output", IK_PreprocessedObjC) .Case("objective-c++-cpp-output", IK_PreprocessedObjCXX) .Case("objc++-cpp-output", IK_PreprocessedObjCXX) .Case("c-header", IK_C) .Case("cl-header", IK_OpenCL) .Case("objective-c-header", IK_ObjC) .Case("c++-header", IK_CXX) .Case("objective-c++-header", IK_ObjCXX) .Cases("ast", "pcm", IK_AST) .Case("ir", IK_LLVM_IR) .Default(IK_None); if (DashX == IK_None) Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << A->getValue(); } // '-' is the default input if none is given. std::vector Inputs = Args.getAllArgValues(OPT_INPUT); Opts.Inputs.clear(); if (Inputs.empty()) Inputs.push_back("-"); for (unsigned i = 0, e = Inputs.size(); i != e; ++i) { InputKind IK = DashX; if (IK == IK_None) { IK = FrontendOptions::getInputKindForExtension( StringRef(Inputs[i]).rsplit('.').second); // FIXME: Remove this hack. if (i == 0) DashX = IK; } Opts.Inputs.push_back(FrontendInputFile(Inputs[i], IK)); } return DashX; } std::string CompilerInvocation::GetResourcesPath(const char *Argv0, void *MainAddr) { llvm::sys::Path P = llvm::sys::Path::GetMainExecutable(Argv0, MainAddr); if (!P.isEmpty()) { P.eraseComponent(); // Remove /clang from foo/bin/clang P.eraseComponent(); // Remove /bin from foo/bin // Get foo/lib/clang//include P.appendComponent("lib"); P.appendComponent("clang"); P.appendComponent(CLANG_VERSION_STRING); } return P.str(); } static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { using namespace options; Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/"); Opts.Verbose = Args.hasArg(OPT_v); Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc); Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc); Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx); if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ)) Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0); Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir); Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path); Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); Opts.ModuleCachePruneInterval = Args.getLastArgIntValue(OPT_fmodules_prune_interval, 7*24*60*60); Opts.ModuleCachePruneAfter = Args.getLastArgIntValue(OPT_fmodules_prune_after, 31*24*60*60); for (arg_iterator it = Args.filtered_begin(OPT_fmodules_ignore_macro), ie = Args.filtered_end(); it != ie; ++it) { StringRef MacroDef = (*it)->getValue(); Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first); } // Add -I..., -F..., and -index-header-map options in order. bool IsIndexHeaderMap = false; for (arg_iterator it = Args.filtered_begin(OPT_I, OPT_F, OPT_index_header_map), ie = Args.filtered_end(); it != ie; ++it) { if ((*it)->getOption().matches(OPT_index_header_map)) { // -index-header-map applies to the next -I or -F. IsIndexHeaderMap = true; continue; } frontend::IncludeDirGroup Group = IsIndexHeaderMap? frontend::IndexHeaderMap : frontend::Angled; Opts.AddPath((*it)->getValue(), Group, /*IsFramework=*/ (*it)->getOption().matches(OPT_F), true); IsIndexHeaderMap = false; } // Add -iprefix/-iwithprefix/-iwithprefixbefore options. StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. for (arg_iterator it = Args.filtered_begin(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore), ie = Args.filtered_end(); it != ie; ++it) { const Arg *A = *it; if (A->getOption().matches(OPT_iprefix)) Prefix = A->getValue(); else if (A->getOption().matches(OPT_iwithprefix)) Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true); else Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true); } for (arg_iterator it = Args.filtered_begin(OPT_idirafter), ie = Args.filtered_end(); it != ie; ++it) Opts.AddPath((*it)->getValue(), frontend::After, false, true); for (arg_iterator it = Args.filtered_begin(OPT_iquote), ie = Args.filtered_end(); it != ie; ++it) Opts.AddPath((*it)->getValue(), frontend::Quoted, false, true); for (arg_iterator it = Args.filtered_begin(OPT_isystem, OPT_iwithsysroot), ie = Args.filtered_end(); it != ie; ++it) Opts.AddPath((*it)->getValue(), frontend::System, false, !(*it)->getOption().matches(OPT_iwithsysroot)); for (arg_iterator it = Args.filtered_begin(OPT_iframework), ie = Args.filtered_end(); it != ie; ++it) Opts.AddPath((*it)->getValue(), frontend::System, true, true); // Add the paths for the various language specific isystem flags. for (arg_iterator it = Args.filtered_begin(OPT_c_isystem), ie = Args.filtered_end(); it != ie; ++it) Opts.AddPath((*it)->getValue(), frontend::CSystem, false, true); for (arg_iterator it = Args.filtered_begin(OPT_cxx_isystem), ie = Args.filtered_end(); it != ie; ++it) Opts.AddPath((*it)->getValue(), frontend::CXXSystem, false, true); for (arg_iterator it = Args.filtered_begin(OPT_objc_isystem), ie = Args.filtered_end(); it != ie; ++it) Opts.AddPath((*it)->getValue(), frontend::ObjCSystem, false,true); for (arg_iterator it = Args.filtered_begin(OPT_objcxx_isystem), ie = Args.filtered_end(); it != ie; ++it) Opts.AddPath((*it)->getValue(), frontend::ObjCXXSystem, false, true); // Add the internal paths from a driver that detects standard include paths. for (arg_iterator I = Args.filtered_begin(OPT_internal_isystem, OPT_internal_externc_isystem), E = Args.filtered_end(); I != E; ++I) { frontend::IncludeDirGroup Group = frontend::System; if ((*I)->getOption().matches(OPT_internal_externc_isystem)) Group = frontend::ExternCSystem; Opts.AddPath((*I)->getValue(), Group, false, true); } // Add the path prefixes which are implicitly treated as being system headers. for (arg_iterator I = Args.filtered_begin(OPT_isystem_prefix, OPT_ino_system_prefix), E = Args.filtered_end(); I != E; ++I) Opts.AddSystemHeaderPrefix((*I)->getValue(), (*I)->getOption().matches(OPT_isystem_prefix)); } void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, LangStandard::Kind LangStd) { // Set some properties which depend solely on the input kind; it would be nice // to move these to the language standard, and have the driver resolve the // input kind + language standard. if (IK == IK_Asm) { Opts.AsmPreprocessor = 1; } else if (IK == IK_ObjC || IK == IK_ObjCXX || IK == IK_PreprocessedObjC || IK == IK_PreprocessedObjCXX) { Opts.ObjC1 = Opts.ObjC2 = 1; } if (LangStd == LangStandard::lang_unspecified) { // Based on the base language, pick one. switch (IK) { case IK_None: case IK_AST: case IK_LLVM_IR: llvm_unreachable("Invalid input kind!"); case IK_OpenCL: LangStd = LangStandard::lang_opencl; break; case IK_CUDA: LangStd = LangStandard::lang_cuda; break; case IK_Asm: case IK_C: case IK_PreprocessedC: case IK_ObjC: case IK_PreprocessedObjC: LangStd = LangStandard::lang_gnu99; break; case IK_CXX: case IK_PreprocessedCXX: case IK_ObjCXX: case IK_PreprocessedObjCXX: LangStd = LangStandard::lang_gnucxx98; break; } } const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); Opts.LineComment = Std.hasLineComments(); Opts.C99 = Std.isC99(); Opts.C11 = Std.isC11(); Opts.CPlusPlus = Std.isCPlusPlus(); Opts.CPlusPlus11 = Std.isCPlusPlus11(); Opts.CPlusPlus1y = Std.isCPlusPlus1y(); Opts.Digraphs = Std.hasDigraphs(); Opts.GNUMode = Std.isGNUMode(); Opts.GNUInline = !Std.isC99(); Opts.HexFloats = Std.hasHexFloats(); Opts.ImplicitInt = Std.hasImplicitInt(); // Set OpenCL Version. if (LangStd == LangStandard::lang_opencl) { Opts.OpenCL = 1; Opts.OpenCLVersion = 100; } else if (LangStd == LangStandard::lang_opencl11) { Opts.OpenCL = 1; Opts.OpenCLVersion = 110; } else if (LangStd == LangStandard::lang_opencl12) { Opts.OpenCL = 1; Opts.OpenCLVersion = 120; } // OpenCL has some additional defaults. if (Opts.OpenCL) { Opts.AltiVec = 0; Opts.CXXOperatorNames = 1; Opts.LaxVectorConversions = 0; Opts.DefaultFPContract = 1; Opts.NativeHalfType = 1; } if (LangStd == LangStandard::lang_cuda) Opts.CUDA = 1; // OpenCL and C++ both have bool, true, false keywords. Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; // C++ has wchar_t keyword. Opts.WChar = Opts.CPlusPlus; Opts.GNUKeywords = Opts.GNUMode; Opts.CXXOperatorNames = Opts.CPlusPlus; // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs // is specified, or -std is set to a conforming mode. Opts.Trigraphs = !Opts.GNUMode; Opts.DollarIdents = !Opts.AsmPreprocessor; } /// Attempt to parse a visibility value out of the given argument. static Visibility parseVisibility(Arg *arg, ArgList &args, DiagnosticsEngine &diags) { StringRef value = arg->getValue(); if (value == "default") { return DefaultVisibility; } else if (value == "hidden") { return HiddenVisibility; } else if (value == "protected") { // FIXME: diagnose if target does not support protected visibility return ProtectedVisibility; } diags.Report(diag::err_drv_invalid_value) << arg->getAsString(args) << value; return DefaultVisibility; } static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, DiagnosticsEngine &Diags) { // FIXME: Cleanup per-file based stuff. LangStandard::Kind LangStd = LangStandard::lang_unspecified; if (const Arg *A = Args.getLastArg(OPT_std_EQ)) { LangStd = llvm::StringSwitch(A->getValue()) #define LANGSTANDARD(id, name, desc, features) \ .Case(name, LangStandard::lang_##id) #include "clang/Frontend/LangStandards.def" .Default(LangStandard::lang_unspecified); if (LangStd == LangStandard::lang_unspecified) Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << A->getValue(); else { // Valid standard, check to make sure language and standard are compatable. const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); switch (IK) { case IK_C: case IK_ObjC: case IK_PreprocessedC: case IK_PreprocessedObjC: if (!(Std.isC89() || Std.isC99())) Diags.Report(diag::err_drv_argument_not_allowed_with) << A->getAsString(Args) << "C/ObjC"; break; case IK_CXX: case IK_ObjCXX: case IK_PreprocessedCXX: case IK_PreprocessedObjCXX: if (!Std.isCPlusPlus()) Diags.Report(diag::err_drv_argument_not_allowed_with) << A->getAsString(Args) << "C++/ObjC++"; break; case IK_OpenCL: if (!Std.isC99()) Diags.Report(diag::err_drv_argument_not_allowed_with) << A->getAsString(Args) << "OpenCL"; break; case IK_CUDA: if (!Std.isCPlusPlus()) Diags.Report(diag::err_drv_argument_not_allowed_with) << A->getAsString(Args) << "CUDA"; break; default: break; } } } // -cl-std only applies for OpenCL language standards. // Override the -std option in this case. if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) { LangStandard::Kind OpenCLLangStd = llvm::StringSwitch(A->getValue()) .Case("CL", LangStandard::lang_opencl) .Case("CL1.1", LangStandard::lang_opencl11) .Case("CL1.2", LangStandard::lang_opencl12) .Default(LangStandard::lang_unspecified); if (OpenCLLangStd == LangStandard::lang_unspecified) { Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << A->getValue(); } else LangStd = OpenCLLangStd; } CompilerInvocation::setLangDefaults(Opts, IK, LangStd); // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, // while a subset (the non-C++ GNU keywords) is provided by GCC's // '-fgnu-keywords'. Clang conflates the two for simplicity under the single // name, as it doesn't seem a useful distinction. Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, Opts.GNUKeywords); if (Args.hasArg(OPT_fno_operator_names)) Opts.CXXOperatorNames = 0; if (Opts.ObjC1) { if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) { StringRef value = arg->getValue(); if (Opts.ObjCRuntime.tryParse(value)) Diags.Report(diag::err_drv_unknown_objc_runtime) << value; } if (Args.hasArg(OPT_fobjc_gc_only)) Opts.setGC(LangOptions::GCOnly); else if (Args.hasArg(OPT_fobjc_gc)) Opts.setGC(LangOptions::HybridGC); else if (Args.hasArg(OPT_fobjc_arc)) { Opts.ObjCAutoRefCount = 1; if (!Opts.ObjCRuntime.allowsARC()) Diags.Report(diag::err_arc_unsupported_on_runtime); // Only set ObjCARCWeak if ARC is enabled. if (Args.hasArg(OPT_fobjc_runtime_has_weak)) Opts.ObjCARCWeak = 1; else Opts.ObjCARCWeak = Opts.ObjCRuntime.allowsWeak(); } if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) Opts.ObjCInferRelatedResultType = 0; } if (Args.hasArg(OPT_fgnu89_inline)) Opts.GNUInline = 1; if (Args.hasArg(OPT_fapple_kext)) { if (!Opts.CPlusPlus) Diags.Report(diag::warn_c_kext); else Opts.AppleKext = 1; } if (Args.hasArg(OPT_print_ivar_layout)) Opts.ObjCGCBitmapPrint = 1; if (Args.hasArg(OPT_fno_constant_cfstrings)) Opts.NoConstantCFStrings = 1; if (Args.hasArg(OPT_faltivec)) Opts.AltiVec = 1; if (Args.hasArg(OPT_pthread)) Opts.POSIXThreads = 1; // The value-visibility mode defaults to "default". if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) { Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags)); } else { Opts.setValueVisibilityMode(DefaultVisibility); } // The type-visibility mode defaults to the value-visibility mode. if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) { Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags)); } else { Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode()); } if (Args.hasArg(OPT_fvisibility_inlines_hidden)) Opts.InlineVisibilityHidden = 1; if (Args.hasArg(OPT_ftrapv)) { Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping); // Set the handler, if one is specified. Opts.OverflowHandler = Args.getLastArgValue(OPT_ftrapv_handler); } else if (Args.hasArg(OPT_fwrapv)) Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined); if (Args.hasArg(OPT_trigraphs)) Opts.Trigraphs = 1; Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, OPT_fno_dollars_in_identifiers, Opts.DollarIdents); Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); Opts.MicrosoftExt = Args.hasArg(OPT_fms_extensions) || Args.hasArg(OPT_fms_compatibility); Opts.MicrosoftMode = Args.hasArg(OPT_fms_compatibility); Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; Opts.MSCVersion = Args.getLastArgIntValue(OPT_fmsc_version, 0, Diags); Opts.Borland = Args.hasArg(OPT_fborland_extensions); Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings); Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings, Opts.ConstStrings); if (Args.hasArg(OPT_fno_lax_vector_conversions)) Opts.LaxVectorConversions = 0; if (Args.hasArg(OPT_fno_threadsafe_statics)) Opts.ThreadsafeStatics = 0; Opts.Exceptions = Args.hasArg(OPT_fexceptions); Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions); Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions); Opts.SjLjExceptions = Args.hasArg(OPT_fsjlj_exceptions); Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp); Opts.RTTI = !Args.hasArg(OPT_fno_rtti); Opts.Blocks = Args.hasArg(OPT_fblocks); Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); Opts.Modules = Args.hasArg(OPT_fmodules); Opts.CharIsSigned = !Args.hasArg(OPT_fno_signed_char); Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); Opts.ShortWChar = Args.hasArg(OPT_fshort_wchar); Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); Opts.Freestanding = Args.hasArg(OPT_ffreestanding); Opts.FormatExtensions = Args.hasArg(OPT_fformat_extensions); Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions); Opts.AccessControl = !Args.hasArg(OPT_fno_access_control); Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors); Opts.MathErrno = Args.hasArg(OPT_fmath_errno); Opts.InstantiationDepth = Args.getLastArgIntValue(OPT_ftemplate_depth, 256, Diags); Opts.ConstexprCallDepth = Args.getLastArgIntValue(OPT_fconstexpr_depth, 512, Diags); Opts.BracketDepth = Args.getLastArgIntValue(OPT_fbracket_depth, 256, Diags); Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); Opts.NumLargeByValueCopy = Args.getLastArgIntValue(OPT_Wlarge_by_value_copy_EQ, 0, Diags); Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields); Opts.ObjCConstantStringClass = Args.getLastArgValue(OPT_fconstant_string_class); Opts.ObjCDefaultSynthProperties = Args.hasArg(OPT_fobjc_default_synthesize_properties); Opts.EncodeExtendedBlockSig = Args.hasArg(OPT_fencode_extended_block_signature); Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); Opts.PackStruct = Args.getLastArgIntValue(OPT_fpack_struct_EQ, 0, Diags); Opts.PICLevel = Args.getLastArgIntValue(OPT_pic_level, 0, Diags); Opts.PIELevel = Args.getLastArgIntValue(OPT_pie_level, 0, Diags); Opts.Static = Args.hasArg(OPT_static_define); Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple); Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple || Args.hasArg(OPT_fdump_record_layouts); Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts); Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking); Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align); Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant); Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math); Opts.MRTD = Args.hasArg(OPT_mrtd); Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat); Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map); Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype); Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support); Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id); Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal); Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack); Opts.CurrentModule = Args.getLastArgValue(OPT_fmodule_name); // Check if -fopenmp is specified. Opts.OpenMP = Args.hasArg(OPT_fopenmp); // Record whether the __DEPRECATED define was requested. Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro, OPT_fno_deprecated_macro, Opts.Deprecated); // FIXME: Eliminate this dependency. unsigned Opt = getOptimizationLevel(Args, IK, Diags), OptSize = getOptimizationLevelSize(Args); Opts.Optimize = Opt != 0; Opts.OptimizeSize = OptSize != 0; // This is the __NO_INLINE__ define, which just depends on things like the // optimization level and -fno-inline, not actually whether the backend has // inlining enabled. Opts.NoInlineDefine = !Opt || Args.hasArg(OPT_fno_inline); Opts.FastMath = Args.hasArg(OPT_ffast_math); Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only); Opts.RetainCommentsFromSystemHeaders = Args.hasArg(OPT_fretain_comments_from_system_headers); unsigned SSP = Args.getLastArgIntValue(OPT_stack_protector, 0, Diags); switch (SSP) { default: Diags.Report(diag::err_drv_invalid_value) << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP; break; case 0: Opts.setStackProtector(LangOptions::SSPOff); break; case 1: Opts.setStackProtector(LangOptions::SSPOn); break; case 2: Opts.setStackProtector(LangOptions::SSPReq); break; } // Parse -fsanitize= arguments. std::vector Sanitizers = Args.getAllArgValues(OPT_fsanitize_EQ); for (unsigned I = 0, N = Sanitizers.size(); I != N; ++I) { // Since the Opts.Sanitize* values are bitfields, it's a little tricky to // efficiently map string values to them. Perform the mapping indirectly: // convert strings to enumerated values, then switch over the enum to set // the right bitfield value. enum Sanitizer { #define SANITIZER(NAME, ID) \ ID, #include "clang/Basic/Sanitizers.def" Unknown }; switch (llvm::StringSwitch(Sanitizers[I]) #define SANITIZER(NAME, ID) \ .Case(NAME, ID) #include "clang/Basic/Sanitizers.def" .Default(Unknown)) { #define SANITIZER(NAME, ID) \ case ID: \ Opts.Sanitize.ID = true; \ break; #include "clang/Basic/Sanitizers.def" case Unknown: Diags.Report(diag::err_drv_invalid_value) << "-fsanitize=" << Sanitizers[I]; break; } } } static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args, FileManager &FileMgr, DiagnosticsEngine &Diags) { using namespace options; Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch); Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth); if (const Arg *A = Args.getLastArg(OPT_token_cache)) Opts.TokenCache = A->getValue(); else Opts.TokenCache = Opts.ImplicitPTHInclude; Opts.UsePredefines = !Args.hasArg(OPT_undef); Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record); Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch); Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls); for (arg_iterator it = Args.filtered_begin(OPT_error_on_deserialized_pch_decl), ie = Args.filtered_end(); it != ie; ++it) { const Arg *A = *it; Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue()); } if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) { StringRef Value(A->getValue()); size_t Comma = Value.find(','); unsigned Bytes = 0; unsigned EndOfLine = 0; if (Comma == StringRef::npos || Value.substr(0, Comma).getAsInteger(10, Bytes) || Value.substr(Comma + 1).getAsInteger(10, EndOfLine)) Diags.Report(diag::err_drv_preamble_format); else { Opts.PrecompiledPreambleBytes.first = Bytes; Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0); } } // Add macros from the command line. for (arg_iterator it = Args.filtered_begin(OPT_D, OPT_U), ie = Args.filtered_end(); it != ie; ++it) { if ((*it)->getOption().matches(OPT_D)) Opts.addMacroDef((*it)->getValue()); else Opts.addMacroUndef((*it)->getValue()); } Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); // Add the ordered list of -includes. for (arg_iterator it = Args.filtered_begin(OPT_include), ie = Args.filtered_end(); it != ie; ++it) { const Arg *A = *it; Opts.Includes.push_back(A->getValue()); } for (arg_iterator it = Args.filtered_begin(OPT_chain_include), ie = Args.filtered_end(); it != ie; ++it) { const Arg *A = *it; Opts.ChainedIncludes.push_back(A->getValue()); } // Include 'altivec.h' if -faltivec option present if (Args.hasArg(OPT_faltivec)) Opts.Includes.push_back("altivec.h"); for (arg_iterator it = Args.filtered_begin(OPT_remap_file), ie = Args.filtered_end(); it != ie; ++it) { const Arg *A = *it; std::pair Split = StringRef(A->getValue()).split(';'); if (Split.second.empty()) { Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args); continue; } Opts.addRemappedFile(Split.first, Split.second); } if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) { StringRef Name = A->getValue(); unsigned Library = llvm::StringSwitch(Name) .Case("libc++", ARCXX_libcxx) .Case("libstdc++", ARCXX_libstdcxx) .Case("none", ARCXX_nolib) .Default(~0U); if (Library == ~0U) Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; else Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library; } } static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts, ArgList &Args, frontend::ActionKind Action) { using namespace options; switch (Action) { case frontend::ASTDeclList: case frontend::ASTDump: case frontend::ASTDumpXML: case frontend::ASTPrint: case frontend::ASTView: case frontend::EmitAssembly: case frontend::EmitBC: case frontend::EmitHTML: case frontend::EmitLLVM: case frontend::EmitLLVMOnly: case frontend::EmitCodeGenOnly: case frontend::EmitObj: case frontend::FixIt: case frontend::GenerateModule: case frontend::GeneratePCH: case frontend::GeneratePTH: case frontend::ParseSyntaxOnly: case frontend::ModuleFileInfo: case frontend::PluginAction: case frontend::PrintDeclContext: case frontend::RewriteObjC: case frontend::RewriteTest: case frontend::RunAnalysis: case frontend::MigrateSource: Opts.ShowCPP = 0; break; case frontend::DumpRawTokens: case frontend::DumpTokens: case frontend::InitOnly: case frontend::PrintPreamble: case frontend::PrintPreprocessedInput: case frontend::RewriteMacros: case frontend::RunPreprocessorOnly: Opts.ShowCPP = !Args.hasArg(OPT_dM); break; } Opts.ShowComments = Args.hasArg(OPT_C); Opts.ShowLineMarkers = !Args.hasArg(OPT_P); Opts.ShowMacroComments = Args.hasArg(OPT_CC); Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD); Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes); } static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) { using namespace options; Opts.ABI = Args.getLastArgValue(OPT_target_abi); Opts.CXXABI = Args.getLastArgValue(OPT_cxx_abi); Opts.CPU = Args.getLastArgValue(OPT_target_cpu); Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); // Use the default target triple if unspecified. if (Opts.Triple.empty()) Opts.Triple = llvm::sys::getDefaultTargetTriple(); } // bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res, const char *const *ArgBegin, const char *const *ArgEnd, DiagnosticsEngine &Diags) { bool Success = true; // Parse the arguments. OwningPtr Opts(createDriverOptTable()); unsigned MissingArgIndex, MissingArgCount; OwningPtr Args( Opts->ParseArgs(ArgBegin, ArgEnd,MissingArgIndex, MissingArgCount)); // Check for missing argument error. if (MissingArgCount) { Diags.Report(diag::err_drv_missing_argument) << Args->getArgString(MissingArgIndex) << MissingArgCount; Success = false; } // Issue errors on unknown arguments. for (arg_iterator it = Args->filtered_begin(OPT_UNKNOWN), ie = Args->filtered_end(); it != ie; ++it) { Diags.Report(diag::err_drv_unknown_argument) << (*it)->getAsString(*Args); Success = false; } // Issue errors on arguments that are not valid for CC1. for (ArgList::iterator I = Args->begin(), E = Args->end(); I != E; ++I) { if (!(*I)->getOption().hasFlag(options::CC1Option)) { Diags.Report(diag::err_drv_unknown_argument) << (*I)->getAsString(*Args); Success = false; } } Success = ParseAnalyzerArgs(*Res.getAnalyzerOpts(), *Args, Diags) && Success; Success = ParseMigratorArgs(Res.getMigratorOpts(), *Args) && Success; ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), *Args); Success = ParseDiagnosticArgs(Res.getDiagnosticOpts(), *Args, &Diags) && Success; ParseCommentArgs(Res.getLangOpts()->CommentOpts, *Args); ParseFileSystemArgs(Res.getFileSystemOpts(), *Args); // FIXME: We shouldn't have to pass the DashX option around here InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), *Args, Diags); Success = ParseCodeGenArgs(Res.getCodeGenOpts(), *Args, DashX, Diags) && Success; ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), *Args); if (DashX != IK_AST && DashX != IK_LLVM_IR) { ParseLangArgs(*Res.getLangOpts(), *Args, DashX, Diags); if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC) Res.getLangOpts()->ObjCExceptions = 1; } // FIXME: ParsePreprocessorArgs uses the FileManager to read the contents of // PCH file and find the original header name. Remove the need to do that in // ParsePreprocessorArgs and remove the FileManager // parameters from the function and the "FileManager.h" #include. FileManager FileMgr(Res.getFileSystemOpts()); ParsePreprocessorArgs(Res.getPreprocessorOpts(), *Args, FileMgr, Diags); ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), *Args, Res.getFrontendOpts().ProgramAction); ParseTargetArgs(Res.getTargetOpts(), *Args); return Success; } namespace { class ModuleSignature { SmallVector Data; unsigned CurBit; uint64_t CurValue; public: ModuleSignature() : CurBit(0), CurValue(0) { } void add(uint64_t Value, unsigned Bits); void add(StringRef Value); void flush(); llvm::APInt getAsInteger() const; }; } void ModuleSignature::add(uint64_t Value, unsigned int NumBits) { CurValue |= Value << CurBit; if (CurBit + NumBits < 64) { CurBit += NumBits; return; } // Add the current word. Data.push_back(CurValue); if (CurBit) CurValue = Value >> (64-CurBit); else CurValue = 0; CurBit = (CurBit+NumBits) & 63; } void ModuleSignature::flush() { if (CurBit == 0) return; Data.push_back(CurValue); CurBit = 0; CurValue = 0; } void ModuleSignature::add(StringRef Value) { for (StringRef::iterator I = Value.begin(), IEnd = Value.end(); I != IEnd;++I) add(*I, 8); } llvm::APInt ModuleSignature::getAsInteger() const { return llvm::APInt(Data.size() * 64, Data); } std::string CompilerInvocation::getModuleHash() const { // Note: For QoI reasons, the things we use as a hash here should all be // dumped via the -module-info flag. using llvm::hash_code; using llvm::hash_value; using llvm::hash_combine; // Start the signature with the compiler version. // FIXME: We'd rather use something more cryptographically sound than // CityHash, but this will do for now. hash_code code = hash_value(getClangFullRepositoryVersion()); // Extend the signature with the language options #define LANGOPT(Name, Bits, Default, Description) \ code = hash_combine(code, LangOpts->Name); #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ code = hash_combine(code, static_cast(LangOpts->get##Name())); #define BENIGN_LANGOPT(Name, Bits, Default, Description) #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) #include "clang/Basic/LangOptions.def" // Extend the signature with the target options. code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, TargetOpts->ABI, TargetOpts->CXXABI, TargetOpts->LinkerVersion); for (unsigned i = 0, n = TargetOpts->FeaturesAsWritten.size(); i != n; ++i) code = hash_combine(code, TargetOpts->FeaturesAsWritten[i]); // Extend the signature with preprocessor options. const PreprocessorOptions &ppOpts = getPreprocessorOpts(); const HeaderSearchOptions &hsOpts = getHeaderSearchOpts(); code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord); std::vector MacroDefs; for (std::vector >::const_iterator I = getPreprocessorOpts().Macros.begin(), IEnd = getPreprocessorOpts().Macros.end(); I != IEnd; ++I) { // If we're supposed to ignore this macro for the purposes of modules, // don't put it into the hash. if (!hsOpts.ModulesIgnoreMacros.empty()) { // Check whether we're ignoring this macro. StringRef MacroDef = I->first; if (hsOpts.ModulesIgnoreMacros.count(MacroDef.split('=').first)) continue; } code = hash_combine(code, I->first, I->second); } // Extend the signature with the sysroot. code = hash_combine(code, hsOpts.Sysroot, hsOpts.UseBuiltinIncludes, hsOpts.UseStandardSystemIncludes, hsOpts.UseStandardCXXIncludes, hsOpts.UseLibcxx); // Darwin-specific hack: if we have a sysroot, use the contents of // $sysroot/System/Library/CoreServices/SystemVersion.plist // as part of the module hash. if (!hsOpts.Sysroot.empty()) { llvm::OwningPtr buffer; SmallString<128> systemVersionFile; systemVersionFile += hsOpts.Sysroot; llvm::sys::path::append(systemVersionFile, "System"); llvm::sys::path::append(systemVersionFile, "Library"); llvm::sys::path::append(systemVersionFile, "CoreServices"); llvm::sys::path::append(systemVersionFile, "SystemVersion.plist"); if (!llvm::MemoryBuffer::getFile(systemVersionFile, buffer)) { code = hash_combine(code, buffer.get()->getBuffer()); } } return llvm::APInt(64, code).toString(36, /*Signed=*/false); }