//===--- CompilerInvocation.cpp -------------------------------------------===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// #include "TestModuleFileExtension.h" #include "clang/Frontend/CompilerInvocation.h" #include "clang/Basic/FileManager.h" #include "clang/Basic/Version.h" #include "clang/Config/config.h" #include "clang/Driver/DriverDiagnostic.h" #include "clang/Driver/Options.h" #include "clang/Driver/Util.h" #include "clang/Frontend/FrontendDiagnostic.h" #include "clang/Frontend/LangStandard.h" #include "clang/Frontend/Utils.h" #include "clang/Lex/HeaderSearchOptions.h" #include "clang/Serialization/ASTReader.h" #include "clang/Serialization/ModuleFileExtension.h" #include "llvm/ADT/Hashing.h" #include "llvm/ADT/STLExtras.h" #include "llvm/ADT/SmallVector.h" #include "llvm/ADT/StringExtras.h" #include "llvm/ADT/StringSwitch.h" #include "llvm/ADT/Triple.h" #include "llvm/Linker/Linker.h" #include "llvm/Option/Arg.h" #include "llvm/Option/ArgList.h" #include "llvm/Option/OptTable.h" #include "llvm/Option/Option.h" #include "llvm/Support/CodeGen.h" #include "llvm/Support/ErrorHandling.h" #include "llvm/Support/FileSystem.h" #include "llvm/Support/Host.h" #include "llvm/Support/Path.h" #include "llvm/Support/Process.h" #include "llvm/Target/TargetOptions.h" #include <atomic> #include <memory> #include <sys/stat.h> #include <system_error> 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<CompilerInvocation>(), 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())) {} CompilerInvocationBase::~CompilerInvocationBase() {} //===----------------------------------------------------------------------===// // Deserialization (from args) //===----------------------------------------------------------------------===// using namespace clang::driver; using namespace clang::driver::options; using namespace llvm::opt; // 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 getLastArgIntValue(Args, 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 addDiagnosticArgs(ArgList &Args, OptSpecifier Group, OptSpecifier GroupWithValue, std::vector<std::string> &Diagnostics) { for (Arg *A : Args.filtered(Group)) { if (A->getOption().getKind() == Option::FlagClass) { // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add // its name (minus the "W" or "R" at the beginning) to the warning list. Diagnostics.push_back(A->getOption().getName().drop_front(1)); } else if (A->getOption().matches(GroupWithValue)) { // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group. Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-")); } else { // Otherwise, add its value (for OPT_W_Joined and similar). for (const char *Arg : A->getValues()) Diagnostics.emplace_back(Arg); } } } 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<AnalysisStores>(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<AnalysisConstraints>(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<AnalysisDiagClients>(Name) #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \ .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<AnalysisPurgeMode>(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<AnalysisInliningMode>(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.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks); 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 = getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags); Opts.PrintStats = Args.hasArg(OPT_analyzer_stats); Opts.InlineMaxStackDepth = getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth, Opts.InlineMaxStackDepth, Diags); Opts.CheckersControlList.clear(); for (const Arg *A : Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) { 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<StringRef, 4> checkers; checkerList.split(checkers, ","); for (StringRef checker : checkers) Opts.CheckersControlList.emplace_back(checker, enable); } // Go through the analyzer configuration options. for (const Arg *A : Args.filtered(OPT_analyzer_config)) { 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<StringRef, 4> configVals; configList.split(configVals, ","); for (unsigned i = 0, e = configVals.size(); i != e; ++i) { StringRef key, val; std::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 StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) { if (Arg *A = Args.getLastArg(OPT_mcode_model)) { StringRef Value = A->getValue(); if (Value == "small" || Value == "kernel" || Value == "medium" || Value == "large") return Value; Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; } return "default"; } /// \brief Create a new Regex instance out of the string value in \p RpassArg. /// It returns a pointer to the newly generated Regex instance. static std::shared_ptr<llvm::Regex> GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args, Arg *RpassArg) { StringRef Val = RpassArg->getValue(); std::string RegexError; std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val); if (!Pattern->isValid(RegexError)) { Diags.Report(diag::err_drv_optimization_remark_pattern) << RegexError << RpassArg->getAsString(Args); Pattern.reset(); } return Pattern; } static bool parseDiagnosticLevelMask(StringRef FlagName, const std::vector<std::string> &Levels, DiagnosticsEngine *Diags, DiagnosticLevelMask &M) { bool Success = true; for (const auto &Level : Levels) { DiagnosticLevelMask const PM = llvm::StringSwitch<DiagnosticLevelMask>(Level) .Case("note", DiagnosticLevelMask::Note) .Case("remark", DiagnosticLevelMask::Remark) .Case("warning", DiagnosticLevelMask::Warning) .Case("error", DiagnosticLevelMask::Error) .Default(DiagnosticLevelMask::None); if (PM == DiagnosticLevelMask::None) { Success = false; if (Diags) Diags->Report(diag::err_drv_invalid_value) << FlagName << Level; } M = M | PM; } return Success; } static void parseSanitizerKinds(StringRef FlagName, const std::vector<std::string> &Sanitizers, DiagnosticsEngine &Diags, SanitizerSet &S) { for (const auto &Sanitizer : Sanitizers) { SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false); if (K == 0) Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer; else S.set(K, true); } } static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, DiagnosticsEngine &Diags, const TargetOptions &TargetOpts) { using namespace options; bool Success = true; llvm::Triple Triple = llvm::Triple(TargetOpts.Triple); unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags); // TODO: This could be done in Driver unsigned MaxOptLevel = 3; if (OptimizationLevel > MaxOptLevel) { // If the optimization level is not supported, fall back on the default // optimization Diags.Report(diag::warn_drv_optimization_value) << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel; OptimizationLevel = MaxOptLevel; } Opts.OptimizationLevel = OptimizationLevel; // 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 (Arg *A = Args.getLastArg(OPT_fveclib)) { StringRef Name = A->getValue(); if (Name == "Accelerate") Opts.setVecLib(CodeGenOptions::Accelerate); else if (Name == "none") Opts.setVecLib(CodeGenOptions::NoLibrary); else Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name; } if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) { Opts.setDebugInfo( llvm::StringSwitch<CodeGenOptions::DebugInfoKind>(A->getValue()) .Case("line-tables-only", CodeGenOptions::DebugLineTablesOnly) .Case("limited", CodeGenOptions::LimitedDebugInfo) .Case("standalone", CodeGenOptions::FullDebugInfo)); } if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) { Opts.setDebuggerTuning( llvm::StringSwitch<CodeGenOptions::DebuggerKind>(A->getValue()) .Case("gdb", CodeGenOptions::DebuggerKindGDB) .Case("lldb", CodeGenOptions::DebuggerKindLLDB) .Case("sce", CodeGenOptions::DebuggerKindSCE)); } Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags); Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info); Opts.EmitCodeView = Args.hasArg(OPT_gcodeview); Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file); Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs); if (Triple.isPS4CPU()) Opts.DebugExplicitImport = true; for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) Opts.DebugPrefixMap.insert(StringRef(Arg).split('=')); if (const Arg *A = Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists)) Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists; Opts.DisableLLVMOpts = Args.hasArg(OPT_disable_llvm_optzns); Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes); 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_no_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.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops, (Opts.OptimizationLevel > 1 && !Opts.OptimizeSize)); Opts.RerollLoops = Args.hasArg(OPT_freroll_loops); Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as); Opts.Autolink = !Args.hasArg(OPT_fno_autolink); Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ); Opts.ProfileInstrGenerate = Args.hasArg(OPT_fprofile_instr_generate) || Args.hasArg(OPT_fprofile_instr_generate_EQ); Opts.InstrProfileOutput = Args.getLastArgValue(OPT_fprofile_instr_generate_EQ); Opts.InstrProfileInput = Args.getLastArgValue(OPT_fprofile_instr_use_EQ); Opts.CoverageMapping = Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false); Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping); Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose); Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions); Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit); Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases); Opts.CodeModel = getCodeModel(Args, Diags); Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass); Opts.DisableFPElim = (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg)); Opts.DisableFree = Args.hasArg(OPT_disable_free); Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls); Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi); if (Arg *A = Args.getLastArg(OPT_meabi)) { StringRef Value = A->getValue(); llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value) .Case("default", llvm::EABI::Default) .Case("4", llvm::EABI::EABI4) .Case("5", llvm::EABI::EABI5) .Case("gnu", llvm::EABI::GNU) .Default(llvm::EABI::Unknown); if (EABIVersion == llvm::EABI::Unknown) Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value; else Opts.EABIVersion = Value; } 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_unsafe_math_optimizations) || Args.hasArg(OPT_cl_finite_math_only) || Args.hasArg(OPT_cl_fast_relaxed_math)); Opts.NoSignedZeros = Args.hasArg(OPT_fno_signed_zeros); Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math); Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss); Opts.BackendOptions = Args.getAllArgValues(OPT_backend_option); Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags); Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack); Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings); Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks); Opts.RelaxAll = Args.hasArg(OPT_mrelax_all); Opts.IncrementalLinkerCompatible = Args.hasArg(OPT_mincremental_linker_compatible); Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer); Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels); Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm); Opts.SoftFloat = Args.hasArg(OPT_msoft_float); Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums); Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers); 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.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix"); if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single") Diags.Report(diag::err_drv_invalid_value) << Args.getLastArg(OPT_mthread_model)->getAsString(Args) << Opts.ThreadModel; Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ); Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array); Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections, OPT_fno_function_sections, false); Opts.DataSections = Args.hasFlag(OPT_fdata_sections, OPT_fno_data_sections, false); Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names, OPT_fno_unique_section_names, true); Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions); Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ); const Arg *A = Args.getLastArg(OPT_flto, OPT_flto_EQ); Opts.EmitFunctionSummary = A && A->containsValue("thin"); if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) { if (IK != IK_LLVM_IR) Diags.Report(diag::err_drv_argument_only_allowed_with) << A->getAsString(Args) << "-x ir"; Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ); } Opts.MSVolatile = Args.hasArg(OPT_fms_volatile); Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive); Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops); Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp); Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name); Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier); 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); Opts.CoverageExitBlockBeforeBody = Args.hasArg(OPT_coverage_exit_block_before_body); 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.CompressDebugSections = Args.hasArg(OPT_compress_debug_sections); Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir); for (auto A : Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) { unsigned LinkFlags = llvm::Linker::Flags::None; if (A->getOption().matches(OPT_mlink_cuda_bitcode)) LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded | llvm::Linker::Flags::InternalizeLinkedSymbols; Opts.LinkBitcodeFiles.push_back(std::make_pair(LinkFlags, A->getValue())); } Opts.SanitizeCoverageType = getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags); Opts.SanitizeCoverageIndirectCalls = Args.hasArg(OPT_fsanitize_coverage_indirect_calls); Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb); Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp); Opts.SanitizeCoverage8bitCounters = Args.hasArg(OPT_fsanitize_coverage_8bit_counters); Opts.SanitizeMemoryTrackOrigins = getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags); Opts.SanitizeMemoryUseAfterDtor = Args.hasArg(OPT_fsanitize_memory_use_after_dtor); Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso); Opts.SSPBufferSize = getLastArgIntValue(Args, 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_mstack_probe_size)) { StringRef Val = A->getValue(); unsigned StackProbeSize = Opts.StackProbeSize; Val.getAsInteger(0, StackProbeSize); Opts.StackProbeSize = StackProbeSize; } if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) { StringRef Name = A->getValue(); unsigned Method = llvm::StringSwitch<unsigned>(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<CodeGenOptions::ObjCDispatchMethodKind>(Method)); } } Opts.EmulatedTLS = Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false); if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) { StringRef Name = A->getValue(); unsigned Model = llvm::StringSwitch<unsigned>(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<CodeGenOptions::TLSModel>(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; } if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) { if (A->getOption().matches(OPT_fpcc_struct_return)) { Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack); } else { assert(A->getOption().matches(OPT_freg_struct_return)); Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs); } } Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib); bool NeedLocTracking = false; if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) { Opts.OptimizationRemarkPattern = GenerateOptimizationRemarkRegex(Diags, Args, A); NeedLocTracking = true; } if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) { Opts.OptimizationRemarkMissedPattern = GenerateOptimizationRemarkRegex(Diags, Args, A); NeedLocTracking = true; } if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) { Opts.OptimizationRemarkAnalysisPattern = GenerateOptimizationRemarkRegex(Diags, Args, A); NeedLocTracking = true; } // If the user requested to use a sample profile for PGO, then the // backend will need to track source location information so the profile // can be incorporated into the IR. if (!Opts.SampleProfileFile.empty()) NeedLocTracking = true; // If the user requested a flag that requires source locations available in // the backend, make sure that the backend tracks source location information. if (NeedLocTracking && Opts.getDebugInfo() == CodeGenOptions::NoDebugInfo) Opts.setDebugInfo(CodeGenOptions::LocTrackingOnly); Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file); // Parse -fsanitize-recover= arguments. // FIXME: Report unrecoverable sanitizers incorrectly specified here. parseSanitizerKinds("-fsanitize-recover=", Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags, Opts.SanitizeRecover); parseSanitizerKinds("-fsanitize-trap=", Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags, Opts.SanitizeTrap); Opts.CudaGpuBinaryFileNames = Args.getAllArgValues(OPT_fcuda_include_gpubinary); 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.IncludeModuleFiles = Args.hasArg(OPT_module_file_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.PrintShowIncludes = Args.hasArg(OPT_show_includes); Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot); Opts.ModuleDependencyOutputDir = Args.getLastArgValue(OPT_module_dependency_dir); if (Args.hasArg(OPT_MV)) Opts.OutputFormat = DependencyOutputFormat::NMake; // Add sanitizer blacklists as extra dependencies. // They won't be discovered by the regular preprocessor, so // we let make / ninja to know about this implicit dependency. Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry); auto ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); Opts.ExtraDeps.insert(Opts.ExtraDeps.end(), ModuleFiles.begin(), ModuleFiles.end()); } bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args, DiagnosticsEngine *Diags) { using namespace options; bool Success = true; Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file); if (Arg *A = Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags)) Opts.DiagnosticSerializationFile = A->getValue(); 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); llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes)); // 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 == "msvc-fallback") { Opts.setFormat(DiagnosticOptions::MSVC); Opts.CLFallbackMode = true; } 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); DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None; Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=", Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), Diags, DiagMask); if (Args.hasArg(OPT_verify_ignore_unexpected)) DiagMask = DiagnosticLevelMask::All; Opts.setVerifyIgnoreUnexpected(DiagMask); Opts.ElideType = !Args.hasArg(OPT_fno_elide_type); Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree); Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags); Opts.MacroBacktraceLimit = getLastArgIntValue(Args, OPT_fmacro_backtrace_limit, DiagnosticOptions::DefaultMacroBacktraceLimit, Diags); Opts.TemplateBacktraceLimit = getLastArgIntValue( Args, OPT_ftemplate_backtrace_limit, DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags); Opts.ConstexprBacktraceLimit = getLastArgIntValue( Args, OPT_fconstexpr_backtrace_limit, DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags); Opts.SpellCheckingLimit = getLastArgIntValue( Args, OPT_fspell_checking_limit, DiagnosticOptions::DefaultSpellCheckingLimit, Diags); Opts.TabStop = getLastArgIntValue(Args, 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 = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags); addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings); addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks); return Success; } static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) { Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory); } /// Parse the argument to the -ftest-module-file-extension /// command-line argument. /// /// \returns true on error, false on success. static bool parseTestModuleFileExtensionArg(StringRef Arg, std::string &BlockName, unsigned &MajorVersion, unsigned &MinorVersion, bool &Hashed, std::string &UserInfo) { SmallVector<StringRef, 5> Args; Arg.split(Args, ':', 5); if (Args.size() < 5) return true; BlockName = Args[0]; if (Args[1].getAsInteger(10, MajorVersion)) return true; if (Args[2].getAsInteger(10, MinorVersion)) return true; if (Args[3].getAsInteger(2, Hashed)) return true; if (Args.size() > 4) UserInfo = Args[4]; return false; } 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: case OPT_ast_dump_lookups: Opts.ProgramAction = frontend::ASTDump; 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_verify_pch: Opts.ProgramAction = frontend::VerifyPCH; 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.emplace_back(A->getValue(0)); Opts.ProgramAction = frontend::PluginAction; Opts.ActionName = A->getValue(); for (const Arg *AA : Args.filtered(OPT_plugin_arg)) if (AA->getValue(0) == Opts.ActionName) Opts.PluginArgs.emplace_back(AA->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 (const Arg *A : Args.filtered(OPT_plugin_arg)) if (A->getValue(0) == Opts.AddPluginActions[i]) Opts.AddPluginArgs[i].emplace_back(A->getValue(1)); for (const std::string &Arg : Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) { std::string BlockName; unsigned MajorVersion; unsigned MinorVersion; bool Hashed; std::string UserInfo; if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)) { Diags.Report(diag::err_test_module_file_extension_format) << Arg; continue; } // Add the testing module file extension. Opts.ModuleFileExtensions.push_back( new TestModuleFileExtension(BlockName, MajorVersion, MinorVersion, Hashed, UserInfo)); } 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.ASTDumpDecls = Args.hasArg(OPT_ast_dump); Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter); Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups); Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index); Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex; Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file); Opts.ModuleFiles = Args.getAllArgValues(OPT_fmodule_file); Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ); Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files); 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); Opts.AuxTriple = llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple)); 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 (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax)) Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax; if (Args.hasArg(OPT_objcmt_migrate_property)) Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property; if (Args.hasArg(OPT_objcmt_migrate_readonly_property)) Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty; if (Args.hasArg(OPT_objcmt_migrate_readwrite_property)) Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty; if (Args.hasArg(OPT_objcmt_migrate_annotation)) Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation; if (Args.hasArg(OPT_objcmt_returns_innerpointer_property)) Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty; if (Args.hasArg(OPT_objcmt_migrate_instancetype)) Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype; if (Args.hasArg(OPT_objcmt_migrate_nsmacros)) Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros; if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance)) Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance; if (Args.hasArg(OPT_objcmt_atomic_property)) Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty; if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly)) Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty; if (Args.hasArg(OPT_objcmt_migrate_designated_init)) Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer; if (Args.hasArg(OPT_objcmt_migrate_all)) Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls; Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path); 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<InputKind>(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("cuda-cpp-output", IK_PreprocessedCuda) .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<std::string> 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.emplace_back(std::move(Inputs[i]), IK); } return DashX; } std::string CompilerInvocation::GetResourcesPath(const char *Argv0, void *MainAddr) { std::string ClangExecutable = llvm::sys::fs::getMainExecutable(Argv0, MainAddr); StringRef Dir = llvm::sys::path::parent_path(ClangExecutable); // Compute the path to the resource directory. StringRef ClangResourceDir(CLANG_RESOURCE_DIR); SmallString<128> P(Dir); if (ClangResourceDir != "") llvm::sys::path::append(P, ClangResourceDir); else llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX, "clang", 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.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path); Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash); Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps); Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd); Opts.ModuleCachePruneInterval = getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60); Opts.ModuleCachePruneAfter = getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60); Opts.ModulesValidateOncePerBuildSession = Args.hasArg(OPT_fmodules_validate_once_per_build_session); Opts.BuildSessionTimestamp = getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0); Opts.ModulesValidateSystemHeaders = Args.hasArg(OPT_fmodules_validate_system_headers); if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ)) Opts.ModuleFormat = A->getValue(); for (const Arg *A : Args.filtered(OPT_fmodules_ignore_macro)) { StringRef MacroDef = A->getValue(); Opts.ModulesIgnoreMacros.insert(MacroDef.split('=').first); } // Add -I..., -F..., and -index-header-map options in order. bool IsIndexHeaderMap = false; for (const Arg *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) { if (A->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(A->getValue(), Group, /*IsFramework=*/A->getOption().matches(OPT_F), true); IsIndexHeaderMap = false; } // Add -iprefix/-iwithprefix/-iwithprefixbefore options. StringRef Prefix = ""; // FIXME: This isn't the correct default prefix. for (const Arg *A : Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) { 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 (const Arg *A : Args.filtered(OPT_idirafter)) Opts.AddPath(A->getValue(), frontend::After, false, true); for (const Arg *A : Args.filtered(OPT_iquote)) Opts.AddPath(A->getValue(), frontend::Quoted, false, true); for (const Arg *A : Args.filtered(OPT_isystem, OPT_iwithsysroot)) Opts.AddPath(A->getValue(), frontend::System, false, !A->getOption().matches(OPT_iwithsysroot)); for (const Arg *A : Args.filtered(OPT_iframework)) Opts.AddPath(A->getValue(), frontend::System, true, true); // Add the paths for the various language specific isystem flags. for (const Arg *A : Args.filtered(OPT_c_isystem)) Opts.AddPath(A->getValue(), frontend::CSystem, false, true); for (const Arg *A : Args.filtered(OPT_cxx_isystem)) Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true); for (const Arg *A : Args.filtered(OPT_objc_isystem)) Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true); for (const Arg *A : Args.filtered(OPT_objcxx_isystem)) Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true); // Add the internal paths from a driver that detects standard include paths. for (const Arg *A : Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) { frontend::IncludeDirGroup Group = frontend::System; if (A->getOption().matches(OPT_internal_externc_isystem)) Group = frontend::ExternCSystem; Opts.AddPath(A->getValue(), Group, false, true); } // Add the path prefixes which are implicitly treated as being system headers. for (const Arg *A : Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix)) Opts.AddSystemHeaderPrefix( A->getValue(), A->getOption().matches(OPT_system_header_prefix)); for (const Arg *A : Args.filtered(OPT_ivfsoverlay)) Opts.AddVFSOverlayFile(A->getValue()); } 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: case IK_PreprocessedCuda: LangStd = LangStandard::lang_cuda; break; case IK_Asm: case IK_C: case IK_PreprocessedC: case IK_ObjC: case IK_PreprocessedObjC: LangStd = LangStandard::lang_gnu11; 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.CPlusPlus14 = Std.isCPlusPlus14(); Opts.CPlusPlus1z = Std.isCPlusPlus1z(); Opts.Digraphs = Std.hasDigraphs(); Opts.GNUMode = Std.isGNUMode(); Opts.GNUInline = Std.isC89(); Opts.HexFloats = Std.hasHexFloats(); Opts.ImplicitInt = Std.hasImplicitInt(); // Set OpenCL Version. Opts.OpenCL = LangStd == LangStandard::lang_opencl || IK == IK_OpenCL; if (LangStd == LangStandard::lang_opencl) Opts.OpenCLVersion = 100; else if (LangStd == LangStandard::lang_opencl11) Opts.OpenCLVersion = 110; else if (LangStd == LangStandard::lang_opencl12) Opts.OpenCLVersion = 120; else if (LangStd == LangStandard::lang_opencl20) Opts.OpenCLVersion = 200; // OpenCL has some additional defaults. if (Opts.OpenCL) { Opts.AltiVec = 0; Opts.ZVector = 0; Opts.CXXOperatorNames = 1; Opts.LaxVectorConversions = 0; Opts.DefaultFPContract = 1; Opts.NativeHalfType = 1; } Opts.CUDA = IK == IK_CUDA || IK == IK_PreprocessedCuda || LangStd == LangStandard::lang_cuda; // OpenCL and C++ both have bool, true, false keywords. Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; // OpenCL has half keyword Opts.Half = Opts.OpenCL; // C++ has wchar_t keyword. Opts.WChar = Opts.CPlusPlus; Opts.GNUKeywords = Opts.GNUMode; Opts.CXXOperatorNames = Opts.CPlusPlus; 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" || value == "internal") { 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<LangStandard::Kind>(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 // compatible. 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: case IK_PreprocessedCuda: 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<LangStandard::Kind>(A->getValue()) .Case("CL", LangStandard::lang_opencl) .Case("CL1.1", LangStandard::lang_opencl11) .Case("CL1.2", LangStandard::lang_opencl12) .Case("CL2.0", LangStandard::lang_opencl20) .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 (Args.hasArg(OPT_fcuda_is_device)) Opts.CUDAIsDevice = 1; if (Args.hasArg(OPT_fcuda_allow_host_calls_from_host_device)) Opts.CUDAAllowHostCallsFromHostDevice = 1; if (Args.hasArg(OPT_fcuda_disable_target_call_checks)) Opts.CUDADisableTargetCallChecks = 1; if (Args.hasArg(OPT_fcuda_target_overloads)) Opts.CUDATargetOverloads = 1; 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); } // ObjCWeakRuntime tracks whether the runtime supports __weak, not // whether the feature is actually enabled. This is predominantly // determined by -fobjc-runtime, but we allow it to be overridden // from the command line for testing purposes. if (Args.hasArg(OPT_fobjc_runtime_has_weak)) Opts.ObjCWeakRuntime = 1; else Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak(); // ObjCWeak determines whether __weak is actually enabled. // Note that we allow -fno-objc-weak to disable this even in ARC mode. if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) { if (!weakArg->getOption().matches(OPT_fobjc_weak)) { assert(!Opts.ObjCWeak); } else if (Opts.getGC() != LangOptions::NonGC) { Diags.Report(diag::err_objc_weak_with_gc); } else if (!Opts.ObjCWeakRuntime) { Diags.Report(diag::err_objc_weak_unsupported); } else { Opts.ObjCWeak = 1; } } else if (Opts.ObjCAutoRefCount) { Opts.ObjCWeak = Opts.ObjCWeakRuntime; } if (Args.hasArg(OPT_fno_objc_infer_related_result_type)) Opts.ObjCInferRelatedResultType = 0; if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime)) Opts.ObjCSubscriptingLegacyRuntime = (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX); } if (Args.hasArg(OPT_fgnu89_inline)) { if (Opts.CPlusPlus) Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fgnu89-inline" << "C++/ObjC++"; else 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_fzvector)) Opts.ZVector = 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); Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility); Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions); Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt; Opts.MSCompatibilityVersion = 0; if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) { VersionTuple VT; if (VT.tryParse(A->getValue())) Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << A->getValue(); Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 + VT.getMinor().getValueOr(0) * 100000 + VT.getSubminor().getValueOr(0); } // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs // is specified, or -std is set to a conforming mode. // Trigraphs are disabled by default in c++1z onwards. Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus1z; Opts.Trigraphs = Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs); Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers, OPT_fno_dollars_in_identifiers, Opts.DollarIdents); Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings); Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, 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.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data); Opts.Blocks = Args.hasArg(OPT_fblocks); Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional); Opts.Coroutines = Args.hasArg(OPT_fcoroutines); Opts.Modules = Args.hasArg(OPT_fmodules); Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse); Opts.ModulesDeclUse = Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse; Opts.ModulesLocalVisibility = Args.hasArg(OPT_fmodules_local_submodule_visibility); Opts.ModulesSearchAll = Opts.Modules && !Args.hasArg(OPT_fno_modules_search_all) && Args.hasArg(OPT_fmodules_search_all); Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery); Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules); Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char); Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar); Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false); Opts.ShortEnums = Args.hasArg(OPT_fshort_enums); Opts.Freestanding = Args.hasArg(OPT_ffreestanding); Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding; Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin); Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new); Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation); Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts); 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 = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno); Opts.InstantiationDepth = getLastArgIntValue(Args, OPT_ftemplate_depth, 256, Diags); Opts.ArrowDepth = getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags); Opts.ConstexprCallDepth = getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags); Opts.ConstexprStepLimit = getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags); Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags); Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing); Opts.NumLargeByValueCopy = getLastArgIntValue(Args, 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_disable_objc_default_synthesize_properties); Opts.EncodeExtendedBlockSig = Args.hasArg(OPT_fencode_extended_block_signature); Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags); Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags); Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags); Opts.PIELevel = getLastArgIntValue(Args, 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); Opts.AppExt = Args.hasArg(OPT_fapplication_extension); Opts.ImplementationOfModule = Args.getLastArgValue(OPT_fmodule_implementation_of); Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature); std::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end()); Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type); Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns); Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm); // __declspec is enabled by default for the PS4 by the driver, and also // enabled for Microsoft Extensions or Borland Extensions, here. // // FIXME: __declspec is also currently enabled for CUDA, but isn't really a // CUDA extension, however it is required for supporting cuda_builtin_vars.h, // which uses __declspec(property). Once that has been rewritten in terms of // something more generic, remove the Opts.CUDA term here. Opts.DeclSpecKeyword = Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec, (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA)); if (!Opts.CurrentModule.empty() && !Opts.ImplementationOfModule.empty() && Opts.CurrentModule != Opts.ImplementationOfModule) { Diags.Report(diag::err_conflicting_module_names) << Opts.CurrentModule << Opts.ImplementationOfModule; } // For now, we only support local submodule visibility in C++ (because we // heavily depend on the ODR for merging redefinitions). if (Opts.ModulesLocalVisibility && !Opts.CPlusPlus) Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fmodules-local-submodule-visibility" << "C"; if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) { switch (llvm::StringSwitch<unsigned>(A->getValue()) .Case("target", LangOptions::ASMM_Target) .Case("no", LangOptions::ASMM_Off) .Case("yes", LangOptions::ASMM_On) .Default(255)) { default: Diags.Report(diag::err_drv_invalid_value) << "-faddress-space-map-mangling=" << A->getValue(); break; case LangOptions::ASMM_Target: Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target); break; case LangOptions::ASMM_On: Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On); break; case LangOptions::ASMM_Off: Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off); break; } } if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) { LangOptions::PragmaMSPointersToMembersKind InheritanceModel = llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>( A->getValue()) .Case("single", LangOptions::PPTMK_FullGeneralitySingleInheritance) .Case("multiple", LangOptions::PPTMK_FullGeneralityMultipleInheritance) .Case("virtual", LangOptions::PPTMK_FullGeneralityVirtualInheritance) .Default(LangOptions::PPTMK_BestCase); if (InheritanceModel == LangOptions::PPTMK_BestCase) Diags.Report(diag::err_drv_invalid_value) << "-fms-memptr-rep=" << A->getValue(); Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel); } // Check if -fopenmp is specified. Opts.OpenMP = Args.hasArg(options::OPT_fopenmp); Opts.OpenMPUseTLS = Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls); // 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) || Args.hasArg(OPT_cl_fast_relaxed_math); Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) || Args.hasArg(OPT_cl_finite_math_only) || Args.hasArg(OPT_cl_fast_relaxed_math); Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) || Args.hasArg(OPT_cl_unsafe_math_optimizations) || Args.hasArg(OPT_cl_fast_relaxed_math); Opts.RetainCommentsFromSystemHeaders = Args.hasArg(OPT_fretain_comments_from_system_headers); unsigned SSP = getLastArgIntValue(Args, 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::SSPStrong); break; case 3: Opts.setStackProtector(LangOptions::SSPReq); break; } // Parse -fsanitize= arguments. parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), Diags, Opts.Sanitize); // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here. Opts.SanitizeAddressFieldPadding = getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags); Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist); } 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 (const Arg *A : Args.filtered(OPT_error_on_deserialized_pch_decl)) 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 (const Arg *A : Args.filtered(OPT_D, OPT_U)) { if (A->getOption().matches(OPT_D)) Opts.addMacroDef(A->getValue()); else Opts.addMacroUndef(A->getValue()); } Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros); // Add the ordered list of -includes. for (const Arg *A : Args.filtered(OPT_include)) Opts.Includes.emplace_back(A->getValue()); for (const Arg *A : Args.filtered(OPT_chain_include)) Opts.ChainedIncludes.emplace_back(A->getValue()); // Include 'altivec.h' if -faltivec option present if (Args.hasArg(OPT_faltivec)) Opts.Includes.emplace_back("altivec.h"); for (const Arg *A : Args.filtered(OPT_remap_file)) { std::pair<StringRef, StringRef> 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<unsigned>(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::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::VerifyPCH: 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); Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives); } static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args) { using namespace options; Opts.ABI = Args.getLastArgValue(OPT_target_abi); Opts.CPU = Args.getLastArgValue(OPT_target_cpu); Opts.FPMath = Args.getLastArgValue(OPT_mfpmath); Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature); Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version); Opts.Triple = llvm::Triple::normalize(Args.getLastArgValue(OPT_triple)); Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ); // 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. std::unique_ptr<OptTable> Opts(createDriverOptTable()); const unsigned IncludedFlagsBitmask = options::CC1Option; unsigned MissingArgIndex, MissingArgCount; InputArgList Args = Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex, MissingArgCount, IncludedFlagsBitmask); // 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 (const Arg *A : Args.filtered(OPT_UNKNOWN)) { Diags.Report(diag::err_drv_unknown_argument) << A->getAsString(Args); Success = false; } Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags); Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args); ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args); Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags); 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); ParseTargetArgs(Res.getTargetOpts(), Args); Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, Res.getTargetOpts()); ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args); if (DashX == IK_AST || DashX == IK_LLVM_IR) { // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the // PassManager in BackendUtil.cpp. They need to be initializd no matter // what the input type is. if (Args.hasArg(OPT_fobjc_arc)) Res.getLangOpts()->ObjCAutoRefCount = 1; parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ), Diags, Res.getLangOpts()->Sanitize); } else { // Other LangOpts are only initialzed when the input is not AST or 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); return Success; } namespace { class ModuleSignature { SmallVector<uint64_t, 16> 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 (auto &c : Value) add(c, 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<unsigned>(LangOpts->get##Name())); #define BENIGN_LANGOPT(Name, Bits, Default, Description) #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) #include "clang/Basic/LangOptions.def" for (StringRef Feature : LangOpts->ModuleFeatures) code = hash_combine(code, Feature); // Extend the signature with the target options. code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU, TargetOpts->ABI); 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); for (std::vector<std::pair<std::string, bool/*isUndef*/>>::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); code = hash_combine(code, hsOpts.ResourceDir); // Extend the signature with the user build path. code = hash_combine(code, hsOpts.ModuleUserBuildPath); // Extend the signature with the module file extensions. const FrontendOptions &frontendOpts = getFrontendOpts(); for (auto ext : frontendOpts.ModuleFileExtensions) { code = ext->hashExtension(code); } // Darwin-specific hack: if we have a sysroot, use the contents and // modification time of // $sysroot/System/Library/CoreServices/SystemVersion.plist // as part of the module hash. if (!hsOpts.Sysroot.empty()) { 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"); llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> buffer = llvm::MemoryBuffer::getFile(systemVersionFile); if (buffer) { code = hash_combine(code, buffer.get()->getBuffer()); struct stat statBuf; if (stat(systemVersionFile.c_str(), &statBuf) == 0) code = hash_combine(code, statBuf.st_mtime); } } return llvm::APInt(64, code).toString(36, /*Signed=*/false); } namespace clang { template<typename IntTy> static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id, IntTy Default, DiagnosticsEngine *Diags) { IntTy Res = Default; if (Arg *A = Args.getLastArg(Id)) { if (StringRef(A->getValue()).getAsInteger(10, Res)) { if (Diags) Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args) << A->getValue(); } } return Res; } // Declared in clang/Frontend/Utils.h. int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default, DiagnosticsEngine *Diags) { return getLastArgIntValueImpl<int>(Args, Id, Default, Diags); } uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id, uint64_t Default, DiagnosticsEngine *Diags) { return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags); } void BuryPointer(const void *Ptr) { // This function may be called only a small fixed amount of times per each // invocation, otherwise we do actually have a leak which we want to report. // If this function is called more than kGraveYardMaxSize times, the pointers // will not be properly buried and a leak detector will report a leak, which // is what we want in such case. static const size_t kGraveYardMaxSize = 16; LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize]; static std::atomic<unsigned> GraveYardSize; unsigned Idx = GraveYardSize++; if (Idx >= kGraveYardMaxSize) return; GraveYard[Idx] = Ptr; } IntrusiveRefCntPtr<vfs::FileSystem> createVFSFromCompilerInvocation(const CompilerInvocation &CI, DiagnosticsEngine &Diags) { if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty()) return vfs::getRealFileSystem(); IntrusiveRefCntPtr<vfs::OverlayFileSystem> Overlay(new vfs::OverlayFileSystem(vfs::getRealFileSystem())); // earlier vfs files are on the bottom for (const std::string &File : CI.getHeaderSearchOpts().VFSOverlayFiles) { llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer = llvm::MemoryBuffer::getFile(File); if (!Buffer) { Diags.Report(diag::err_missing_vfs_overlay_file) << File; return IntrusiveRefCntPtr<vfs::FileSystem>(); } IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML(std::move(Buffer.get()), /*DiagHandler*/ nullptr); if (!FS.get()) { Diags.Report(diag::err_invalid_vfs_overlay) << File; return IntrusiveRefCntPtr<vfs::FileSystem>(); } Overlay->pushOverlay(FS); } return Overlay; } } // end namespace clang