| //===--- Options.cpp - clang-cc Option Handling ---------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // This file contains "pure" option handling, it is only responsible for turning |
| // the options into internal *Option classes, but shouldn't have any other |
| // logic. |
| |
| #include "Options.h" |
| #include "clang/Basic/LangOptions.h" |
| #include "clang/Basic/TargetInfo.h" |
| #include "clang/Frontend/AnalysisConsumer.h" |
| #include "clang/CodeGen/CodeGenOptions.h" |
| #include "clang/Frontend/DependencyOutputOptions.h" |
| #include "clang/Frontend/DiagnosticOptions.h" |
| #include "clang/Frontend/FrontendOptions.h" |
| #include "clang/Frontend/HeaderSearchOptions.h" |
| #include "clang/Frontend/PCHReader.h" |
| #include "clang/Frontend/PreprocessorOptions.h" |
| #include "clang/Frontend/PreprocessorOutputOptions.h" |
| #include "llvm/ADT/STLExtras.h" |
| #include "llvm/ADT/StringMap.h" |
| #include "llvm/Support/CommandLine.h" |
| #include "llvm/Support/RegistryParser.h" |
| #include <stdio.h> |
| |
| using namespace clang; |
| |
| //===----------------------------------------------------------------------===// |
| // Analyzer Options |
| //===----------------------------------------------------------------------===// |
| |
| namespace analyzeroptions { |
| |
| static llvm::cl::list<Analyses> |
| AnalysisList(llvm::cl::desc("Source Code Analysis - Checks and Analyses"), |
| llvm::cl::values( |
| #define ANALYSIS(NAME, CMDFLAG, DESC, SCOPE)\ |
| clEnumValN(NAME, CMDFLAG, DESC), |
| #include "clang/Frontend/Analyses.def" |
| clEnumValEnd)); |
| |
| static llvm::cl::opt<AnalysisStores> |
| AnalysisStoreOpt("analyzer-store", |
| llvm::cl::desc("Source Code Analysis - Abstract Memory Store Models"), |
| llvm::cl::init(BasicStoreModel), |
| llvm::cl::values( |
| #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN)\ |
| clEnumValN(NAME##Model, CMDFLAG, DESC), |
| #include "clang/Frontend/Analyses.def" |
| clEnumValEnd)); |
| |
| static llvm::cl::opt<AnalysisConstraints> |
| AnalysisConstraintsOpt("analyzer-constraints", |
| llvm::cl::desc("Source Code Analysis - Symbolic Constraint Engines"), |
| llvm::cl::init(RangeConstraintsModel), |
| llvm::cl::values( |
| #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN)\ |
| clEnumValN(NAME##Model, CMDFLAG, DESC), |
| #include "clang/Frontend/Analyses.def" |
| clEnumValEnd)); |
| |
| static llvm::cl::opt<AnalysisDiagClients> |
| AnalysisDiagOpt("analyzer-output", |
| llvm::cl::desc("Source Code Analysis - Output Options"), |
| llvm::cl::init(PD_HTML), |
| llvm::cl::values( |
| #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN, AUTOCREATE)\ |
| clEnumValN(PD_##NAME, CMDFLAG, DESC), |
| #include "clang/Frontend/Analyses.def" |
| clEnumValEnd)); |
| |
| static llvm::cl::opt<bool> |
| AnalyzeAll("analyzer-opt-analyze-headers", |
| llvm::cl::desc("Force the static analyzer to analyze " |
| "functions defined in header files")); |
| |
| static llvm::cl::opt<bool> |
| AnalyzerDisplayProgress("analyzer-display-progress", |
| llvm::cl::desc("Emit verbose output about the analyzer's progress")); |
| |
| static llvm::cl::opt<bool> |
| AnalyzerExperimentalChecks("analyzer-experimental-checks", |
| llvm::cl::desc("Use experimental path-sensitive checks")); |
| |
| static llvm::cl::opt<bool> |
| AnalyzerExperimentalInternalChecks("analyzer-experimental-internal-checks", |
| llvm::cl::desc("Use new default path-sensitive checks currently in testing")); |
| |
| static llvm::cl::opt<std::string> |
| AnalyzeSpecificFunction("analyze-function", |
| llvm::cl::desc("Run analysis on specific function")); |
| |
| static llvm::cl::opt<bool> |
| EagerlyAssume("analyzer-eagerly-assume", |
| llvm::cl::init(false), |
| llvm::cl::desc("Eagerly assume the truth/falseness of some " |
| "symbolic constraints")); |
| |
| static llvm::cl::opt<bool> |
| PurgeDead("analyzer-purge-dead", |
| llvm::cl::init(true), |
| llvm::cl::desc("Remove dead symbols, bindings, and constraints before" |
| " processing a statement")); |
| |
| static llvm::cl::opt<bool> |
| TrimGraph("trim-egraph", |
| llvm::cl::desc("Only show error-related paths in the analysis graph")); |
| |
| static llvm::cl::opt<bool> |
| VisualizeEGDot("analyzer-viz-egraph-graphviz", |
| llvm::cl::desc("Display exploded graph using GraphViz")); |
| |
| static llvm::cl::opt<bool> |
| VisualizeEGUbi("analyzer-viz-egraph-ubigraph", |
| llvm::cl::desc("Display exploded graph using Ubigraph")); |
| |
| } |
| |
| void clang::InitializeAnalyzerOptions(AnalyzerOptions &Opts) { |
| using namespace analyzeroptions; |
| Opts.AnalysisList = AnalysisList; |
| Opts.AnalysisStoreOpt = AnalysisStoreOpt; |
| Opts.AnalysisConstraintsOpt = AnalysisConstraintsOpt; |
| Opts.AnalysisDiagOpt = AnalysisDiagOpt; |
| Opts.VisualizeEGDot = VisualizeEGDot; |
| Opts.VisualizeEGUbi = VisualizeEGUbi; |
| Opts.AnalyzeAll = AnalyzeAll; |
| Opts.AnalyzerDisplayProgress = AnalyzerDisplayProgress; |
| Opts.PurgeDead = PurgeDead; |
| Opts.EagerlyAssume = EagerlyAssume; |
| Opts.AnalyzeSpecificFunction = AnalyzeSpecificFunction; |
| Opts.EnableExperimentalChecks = AnalyzerExperimentalChecks; |
| Opts.EnableExperimentalInternalChecks = AnalyzerExperimentalInternalChecks; |
| Opts.TrimGraph = TrimGraph; |
| } |
| |
| |
| //===----------------------------------------------------------------------===// |
| // Code Generation Options |
| //===----------------------------------------------------------------------===// |
| |
| namespace codegenoptions { |
| |
| static llvm::cl::opt<bool> |
| DisableLLVMOptimizations("disable-llvm-optzns", |
| llvm::cl::desc("Don't run LLVM optimization passes")); |
| |
| static llvm::cl::opt<bool> |
| DisableRedZone("disable-red-zone", |
| llvm::cl::desc("Do not emit code that uses the red zone."), |
| llvm::cl::init(false)); |
| |
| static llvm::cl::opt<bool> |
| GenerateDebugInfo("g", |
| llvm::cl::desc("Generate source level debug information")); |
| |
| static llvm::cl::opt<bool> |
| NoCommon("fno-common", |
| llvm::cl::desc("Compile common globals like normal definitions"), |
| llvm::cl::ValueDisallowed); |
| |
| static llvm::cl::opt<bool> |
| NoImplicitFloat("no-implicit-float", |
| llvm::cl::desc("Don't generate implicit floating point instructions (x86-only)"), |
| llvm::cl::init(false)); |
| |
| static llvm::cl::opt<bool> |
| NoMergeConstants("fno-merge-all-constants", |
| llvm::cl::desc("Disallow merging of constants.")); |
| |
| // It might be nice to add bounds to the CommandLine library directly. |
| struct OptLevelParser : public llvm::cl::parser<unsigned> { |
| bool parse(llvm::cl::Option &O, llvm::StringRef ArgName, |
| llvm::StringRef Arg, unsigned &Val) { |
| if (llvm::cl::parser<unsigned>::parse(O, ArgName, Arg, Val)) |
| return true; |
| if (Val > 3) |
| return O.error("'" + Arg + "' invalid optimization level!"); |
| return false; |
| } |
| }; |
| static llvm::cl::opt<unsigned, false, OptLevelParser> |
| OptLevel("O", llvm::cl::Prefix, |
| llvm::cl::desc("Optimization level"), |
| llvm::cl::init(0)); |
| |
| static llvm::cl::opt<bool> |
| OptSize("Os", llvm::cl::desc("Optimize for size")); |
| |
| static llvm::cl::opt<std::string> |
| TargetCPU("mcpu", |
| llvm::cl::desc("Target a specific cpu type (-mcpu=help for details)")); |
| |
| static llvm::cl::list<std::string> |
| TargetFeatures("target-feature", llvm::cl::desc("Target specific attributes")); |
| |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Dependency Output Options |
| //===----------------------------------------------------------------------===// |
| |
| namespace dependencyoutputoptions { |
| |
| static llvm::cl::opt<std::string> |
| DependencyFile("dependency-file", |
| llvm::cl::desc("Filename (or -) to write dependency output to")); |
| |
| static llvm::cl::opt<bool> |
| DependenciesIncludeSystemHeaders("sys-header-deps", |
| llvm::cl::desc("Include system headers in dependency output")); |
| |
| static llvm::cl::list<std::string> |
| DependencyTargets("MT", |
| llvm::cl::desc("Specify target for dependency")); |
| |
| static llvm::cl::opt<bool> |
| PhonyDependencyTarget("MP", |
| llvm::cl::desc("Create phony target for each dependency " |
| "(other than main file)")); |
| |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Diagnostic Options |
| //===----------------------------------------------------------------------===// |
| |
| namespace diagnosticoptions { |
| |
| static llvm::cl::opt<std::string> |
| DumpBuildInformation("dump-build-information", |
| llvm::cl::value_desc("filename"), |
| llvm::cl::desc("output a dump of some build information to a file")); |
| |
| static llvm::cl::opt<bool> |
| NoShowColumn("fno-show-column", |
| llvm::cl::desc("Do not include column number on diagnostics")); |
| |
| static llvm::cl::opt<bool> |
| NoShowLocation("fno-show-source-location", |
| llvm::cl::desc("Do not include source location information with" |
| " diagnostics")); |
| |
| static llvm::cl::opt<bool> |
| NoCaretDiagnostics("fno-caret-diagnostics", |
| llvm::cl::desc("Do not include source line and caret with" |
| " diagnostics")); |
| |
| static llvm::cl::opt<bool> |
| NoDiagnosticsFixIt("fno-diagnostics-fixit-info", |
| llvm::cl::desc("Do not include fixit information in" |
| " diagnostics")); |
| |
| static llvm::cl::opt<bool> OptNoWarnings("w"); |
| |
| static llvm::cl::opt<bool> OptPedantic("pedantic"); |
| |
| static llvm::cl::opt<bool> OptPedanticErrors("pedantic-errors"); |
| |
| // This gets all -W options, including -Werror, -W[no-]system-headers, etc. The |
| // driver has stripped off -Wa,foo etc. The driver has also translated -W to |
| // -Wextra, so we don't need to worry about it. |
| static llvm::cl::list<std::string> |
| OptWarnings("W", llvm::cl::Prefix, llvm::cl::ValueOptional); |
| |
| static llvm::cl::opt<bool> |
| PrintSourceRangeInfo("fdiagnostics-print-source-range-info", |
| llvm::cl::desc("Print source range spans in numeric form")); |
| |
| static llvm::cl::opt<bool> |
| PrintDiagnosticOption("fdiagnostics-show-option", |
| llvm::cl::desc("Print diagnostic name with mappable diagnostics")); |
| |
| static llvm::cl::opt<unsigned> |
| MessageLength("fmessage-length", |
| llvm::cl::desc("Format message diagnostics so that they fit " |
| "within N columns or fewer, when possible."), |
| llvm::cl::value_desc("N")); |
| |
| static llvm::cl::opt<bool> |
| PrintColorDiagnostic("fcolor-diagnostics", |
| llvm::cl::desc("Use colors in diagnostics")); |
| |
| static llvm::cl::opt<bool> |
| SilenceRewriteMacroWarning("Wno-rewrite-macros", llvm::cl::init(false), |
| llvm::cl::desc("Silence ObjC rewriting warnings")); |
| |
| static llvm::cl::opt<bool> |
| VerifyDiagnostics("verify", |
| llvm::cl::desc("Verify emitted diagnostics and warnings")); |
| |
| } |
| |
| |
| //===----------------------------------------------------------------------===// |
| // Frontend Options |
| //===----------------------------------------------------------------------===// |
| |
| namespace frontendoptions { |
| |
| using namespace clang::frontend; |
| |
| static llvm::cl::opt<ParsedSourceLocation> |
| CodeCompletionAt("code-completion-at", |
| llvm::cl::value_desc("file:line:column"), |
| llvm::cl::desc("Dump code-completion information at a location")); |
| |
| static llvm::cl::opt<bool> |
| CodeCompletionDebugPrinter("code-completion-debug-printer", |
| llvm::cl::desc("Use the \"debug\" code-completion print"), |
| llvm::cl::init(true)); |
| |
| static llvm::cl::opt<bool> |
| CodeCompletionWantsMacros("code-completion-macros", |
| llvm::cl::desc("Include macros in code-completion results")); |
| |
| static llvm::cl::opt<bool> |
| DisableFree("disable-free", |
| llvm::cl::desc("Disable freeing of memory on exit"), |
| llvm::cl::init(false)); |
| |
| static llvm::cl::opt<bool> |
| EmptyInputOnly("empty-input-only", |
| llvm::cl::desc("Force running on an empty input file")); |
| |
| static llvm::cl::opt<FrontendOptions::InputKind> |
| InputType("x", llvm::cl::desc("Input language type"), |
| llvm::cl::init(FrontendOptions::IK_None), |
| llvm::cl::values(clEnumValN(FrontendOptions::IK_C, "c", "C"), |
| clEnumValN(FrontendOptions::IK_OpenCL, "cl", "OpenCL C"), |
| clEnumValN(FrontendOptions::IK_CXX, "c++", "C++"), |
| clEnumValN(FrontendOptions::IK_ObjC, "objective-c", |
| "Objective C"), |
| clEnumValN(FrontendOptions::IK_ObjCXX, "objective-c++", |
| "Objective C++"), |
| clEnumValN(FrontendOptions::IK_PreprocessedC, |
| "cpp-output", |
| "Preprocessed C"), |
| clEnumValN(FrontendOptions::IK_Asm, |
| "assembler-with-cpp", |
| "Assembly Source Codde"), |
| clEnumValN(FrontendOptions::IK_PreprocessedCXX, |
| "c++-cpp-output", |
| "Preprocessed C++"), |
| clEnumValN(FrontendOptions::IK_PreprocessedObjC, |
| "objective-c-cpp-output", |
| "Preprocessed Objective C"), |
| clEnumValN(FrontendOptions::IK_PreprocessedObjCXX, |
| "objective-c++-cpp-output", |
| "Preprocessed Objective C++"), |
| clEnumValN(FrontendOptions::IK_C, "c-header", |
| "C header"), |
| clEnumValN(FrontendOptions::IK_ObjC, "objective-c-header", |
| "Objective-C header"), |
| clEnumValN(FrontendOptions::IK_CXX, "c++-header", |
| "C++ header"), |
| clEnumValN(FrontendOptions::IK_ObjCXX, |
| "objective-c++-header", |
| "Objective-C++ header"), |
| clEnumValN(FrontendOptions::IK_AST, "ast", |
| "Clang AST"), |
| clEnumValEnd)); |
| |
| static llvm::cl::list<std::string> |
| InputFilenames(llvm::cl::Positional, llvm::cl::desc("<input files>")); |
| |
| static llvm::cl::opt<std::string> |
| InheritanceViewCls("cxx-inheritance-view", |
| llvm::cl::value_desc("class name"), |
| llvm::cl::desc("View C++ inheritance for a specified class")); |
| |
| static llvm::cl::list<ParsedSourceLocation> |
| FixItAtLocations("fixit-at", llvm::cl::value_desc("source-location"), |
| llvm::cl::desc("Perform Fix-It modifications at the given source location")); |
| |
| static llvm::cl::opt<std::string> |
| OutputFile("o", |
| llvm::cl::value_desc("path"), |
| llvm::cl::desc("Specify output file")); |
| |
| static llvm::cl::opt<std::string> |
| PluginActionName("plugin", |
| llvm::cl::desc("Use the named plugin action " |
| "(use \"help\" to list available options)")); |
| |
| static llvm::cl::opt<ActionKind> |
| ProgAction(llvm::cl::desc("Choose output type:"), llvm::cl::ZeroOrMore, |
| llvm::cl::init(ParseSyntaxOnly), |
| llvm::cl::values( |
| clEnumValN(RunPreprocessorOnly, "Eonly", |
| "Just run preprocessor, no output (for timings)"), |
| clEnumValN(PrintPreprocessedInput, "E", |
| "Run preprocessor, emit preprocessed file"), |
| clEnumValN(DumpRawTokens, "dump-raw-tokens", |
| "Lex file in raw mode and dump raw tokens"), |
| clEnumValN(RunAnalysis, "analyze", |
| "Run static analysis engine"), |
| clEnumValN(DumpTokens, "dump-tokens", |
| "Run preprocessor, dump internal rep of tokens"), |
| clEnumValN(ParseNoop, "parse-noop", |
| "Run parser with noop callbacks (for timings)"), |
| clEnumValN(ParseSyntaxOnly, "fsyntax-only", |
| "Run parser and perform semantic analysis"), |
| clEnumValN(FixIt, "fixit", |
| "Apply fix-it advice to the input source"), |
| clEnumValN(ParsePrintCallbacks, "parse-print-callbacks", |
| "Run parser and print each callback invoked"), |
| clEnumValN(EmitHTML, "emit-html", |
| "Output input source as HTML"), |
| clEnumValN(ASTPrint, "ast-print", |
| "Build ASTs and then pretty-print them"), |
| clEnumValN(ASTPrintXML, "ast-print-xml", |
| "Build ASTs and then print them in XML format"), |
| clEnumValN(ASTDump, "ast-dump", |
| "Build ASTs and then debug dump them"), |
| clEnumValN(ASTView, "ast-view", |
| "Build ASTs and view them with GraphViz"), |
| clEnumValN(PrintDeclContext, "print-decl-contexts", |
| "Print DeclContexts and their Decls"), |
| clEnumValN(DumpRecordLayouts, "dump-record-layouts", |
| "Dump record layout information"), |
| clEnumValN(GeneratePTH, "emit-pth", |
| "Generate pre-tokenized header file"), |
| clEnumValN(GeneratePCH, "emit-pch", |
| "Generate pre-compiled header file"), |
| clEnumValN(EmitAssembly, "S", |
| "Emit native assembly code"), |
| clEnumValN(EmitLLVM, "emit-llvm", |
| "Build ASTs then convert to LLVM, emit .ll file"), |
| clEnumValN(EmitBC, "emit-llvm-bc", |
| "Build ASTs then convert to LLVM, emit .bc file"), |
| clEnumValN(EmitLLVMOnly, "emit-llvm-only", |
| "Build ASTs and convert to LLVM, discarding output"), |
| clEnumValN(RewriteTest, "rewrite-test", |
| "Rewriter playground"), |
| clEnumValN(RewriteObjC, "rewrite-objc", |
| "Rewrite ObjC into C (code rewriter example)"), |
| clEnumValN(RewriteMacros, "rewrite-macros", |
| "Expand macros without full preprocessing"), |
| clEnumValN(RewriteBlocks, "rewrite-blocks", |
| "Rewrite Blocks to C"), |
| clEnumValEnd)); |
| |
| static llvm::cl::opt<bool> |
| RelocatablePCH("relocatable-pch", |
| llvm::cl::desc("Whether to build a relocatable precompiled " |
| "header")); |
| static llvm::cl::opt<bool> |
| Stats("print-stats", |
| llvm::cl::desc("Print performance metrics and statistics")); |
| |
| static llvm::cl::opt<std::string> |
| TargetABI("target-abi", |
| llvm::cl::desc("Target a particular ABI type")); |
| |
| static llvm::cl::opt<std::string> |
| TargetTriple("triple", |
| llvm::cl::desc("Specify target triple (e.g. i686-apple-darwin9)")); |
| |
| static llvm::cl::opt<bool> |
| TimeReport("ftime-report", |
| llvm::cl::desc("Print the amount of time each " |
| "phase of compilation takes")); |
| |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Language Options |
| //===----------------------------------------------------------------------===// |
| |
| namespace langoptions { |
| |
| static llvm::cl::opt<bool> |
| AllowBuiltins("fbuiltin", llvm::cl::init(true), |
| llvm::cl::desc("Disable implicit builtin knowledge of functions")); |
| |
| static llvm::cl::opt<bool> |
| AltiVec("faltivec", llvm::cl::desc("Enable AltiVec vector initializer syntax"), |
| llvm::cl::init(false)); |
| |
| static llvm::cl::opt<bool> |
| AccessControl("faccess-control", |
| llvm::cl::desc("Enable C++ access control")); |
| |
| static llvm::cl::opt<bool> |
| CharIsSigned("fsigned-char", |
| llvm::cl::desc("Force char to be a signed/unsigned type")); |
| |
| static llvm::cl::opt<bool> |
| DollarsInIdents("fdollars-in-identifiers", |
| llvm::cl::desc("Allow '$' in identifiers")); |
| |
| static llvm::cl::opt<bool> |
| EmitAllDecls("femit-all-decls", |
| llvm::cl::desc("Emit all declarations, even if unused")); |
| |
| static llvm::cl::opt<bool> |
| EnableBlocks("fblocks", llvm::cl::desc("enable the 'blocks' language feature")); |
| |
| static llvm::cl::opt<bool> |
| EnableHeinousExtensions("fheinous-gnu-extensions", |
| llvm::cl::desc("enable GNU extensions that you really really shouldn't use"), |
| llvm::cl::ValueDisallowed, llvm::cl::Hidden); |
| |
| static llvm::cl::opt<bool> |
| Exceptions("fexceptions", |
| llvm::cl::desc("Enable support for exception handling")); |
| |
| static llvm::cl::opt<bool> |
| Freestanding("ffreestanding", |
| llvm::cl::desc("Assert that the compilation takes place in a " |
| "freestanding environment")); |
| |
| static llvm::cl::opt<bool> |
| GNURuntime("fgnu-runtime", |
| llvm::cl::desc("Generate output compatible with the standard GNU " |
| "Objective-C runtime")); |
| |
| /// LangStds - Language standards we support. |
| enum LangStds { |
| lang_unspecified, |
| lang_c89, lang_c94, lang_c99, |
| lang_gnu89, lang_gnu99, |
| lang_cxx98, lang_gnucxx98, |
| lang_cxx0x, lang_gnucxx0x |
| }; |
| static llvm::cl::opt<LangStds> |
| LangStd("std", llvm::cl::desc("Language standard to compile for"), |
| llvm::cl::init(lang_unspecified), |
| llvm::cl::values(clEnumValN(lang_c89, "c89", "ISO C 1990"), |
| clEnumValN(lang_c89, "c90", "ISO C 1990"), |
| clEnumValN(lang_c89, "iso9899:1990", "ISO C 1990"), |
| clEnumValN(lang_c94, "iso9899:199409", |
| "ISO C 1990 with amendment 1"), |
| clEnumValN(lang_c99, "c99", "ISO C 1999"), |
| clEnumValN(lang_c99, "c9x", "ISO C 1999"), |
| clEnumValN(lang_c99, "iso9899:1999", "ISO C 1999"), |
| clEnumValN(lang_c99, "iso9899:199x", "ISO C 1999"), |
| clEnumValN(lang_gnu89, "gnu89", |
| "ISO C 1990 with GNU extensions"), |
| clEnumValN(lang_gnu99, "gnu99", |
| "ISO C 1999 with GNU extensions (default for C)"), |
| clEnumValN(lang_gnu99, "gnu9x", |
| "ISO C 1999 with GNU extensions"), |
| clEnumValN(lang_cxx98, "c++98", |
| "ISO C++ 1998 with amendments"), |
| clEnumValN(lang_gnucxx98, "gnu++98", |
| "ISO C++ 1998 with amendments and GNU " |
| "extensions (default for C++)"), |
| clEnumValN(lang_cxx0x, "c++0x", |
| "Upcoming ISO C++ 200x with amendments"), |
| clEnumValN(lang_gnucxx0x, "gnu++0x", |
| "Upcoming ISO C++ 200x with amendments and GNU " |
| "extensions"), |
| clEnumValEnd)); |
| |
| static llvm::cl::opt<bool> |
| MSExtensions("fms-extensions", |
| llvm::cl::desc("Accept some non-standard constructs used in " |
| "Microsoft header files ")); |
| |
| static llvm::cl::opt<std::string> |
| MainFileName("main-file-name", |
| llvm::cl::desc("Main file name to use for debug info")); |
| |
| static llvm::cl::opt<bool> |
| MathErrno("fmath-errno", llvm::cl::init(true), |
| llvm::cl::desc("Require math functions to respect errno")); |
| |
| static llvm::cl::opt<bool> |
| NeXTRuntime("fnext-runtime", |
| llvm::cl::desc("Generate output compatible with the NeXT " |
| "runtime")); |
| |
| static llvm::cl::opt<bool> |
| NoElideConstructors("fno-elide-constructors", |
| llvm::cl::desc("Disable C++ copy constructor elision")); |
| |
| static llvm::cl::opt<bool> |
| NoLaxVectorConversions("fno-lax-vector-conversions", |
| llvm::cl::desc("Disallow implicit conversions between " |
| "vectors with a different number of " |
| "elements or different element types")); |
| |
| |
| static llvm::cl::opt<bool> |
| NoOperatorNames("fno-operator-names", |
| llvm::cl::desc("Do not treat C++ operator name keywords as " |
| "synonyms for operators")); |
| |
| static llvm::cl::opt<std::string> |
| ObjCConstantStringClass("fconstant-string-class", |
| llvm::cl::value_desc("class name"), |
| llvm::cl::desc("Specify the class to use for constant " |
| "Objective-C string objects.")); |
| |
| static llvm::cl::opt<bool> |
| ObjCEnableGC("fobjc-gc", |
| llvm::cl::desc("Enable Objective-C garbage collection")); |
| |
| static llvm::cl::opt<bool> |
| ObjCExclusiveGC("fobjc-gc-only", |
| llvm::cl::desc("Use GC exclusively for Objective-C related " |
| "memory management")); |
| |
| static llvm::cl::opt<bool> |
| ObjCEnableGCBitmapPrint("print-ivar-layout", |
| llvm::cl::desc("Enable Objective-C Ivar layout bitmap print trace")); |
| |
| static llvm::cl::opt<bool> |
| ObjCNonFragileABI("fobjc-nonfragile-abi", |
| llvm::cl::desc("enable objective-c's nonfragile abi")); |
| |
| static llvm::cl::opt<bool> |
| OverflowChecking("ftrapv", |
| llvm::cl::desc("Trap on integer overflow"), |
| llvm::cl::init(false)); |
| |
| static llvm::cl::opt<unsigned> |
| PICLevel("pic-level", llvm::cl::desc("Value for __PIC__")); |
| |
| static llvm::cl::opt<bool> |
| PThread("pthread", llvm::cl::desc("Support POSIX threads in generated code"), |
| llvm::cl::init(false)); |
| |
| static llvm::cl::opt<bool> |
| PascalStrings("fpascal-strings", |
| llvm::cl::desc("Recognize and construct Pascal-style " |
| "string literals")); |
| |
| static llvm::cl::opt<bool> |
| Rtti("frtti", llvm::cl::init(true), |
| llvm::cl::desc("Enable generation of rtti information")); |
| |
| static llvm::cl::opt<bool> |
| ShortWChar("fshort-wchar", |
| llvm::cl::desc("Force wchar_t to be a short unsigned int")); |
| |
| static llvm::cl::opt<bool> |
| StaticDefine("static-define", llvm::cl::desc("Should __STATIC__ be defined")); |
| |
| static llvm::cl::opt<int> |
| StackProtector("stack-protector", |
| llvm::cl::desc("Enable stack protectors"), |
| llvm::cl::init(-1)); |
| |
| static llvm::cl::opt<LangOptions::VisibilityMode> |
| SymbolVisibility("fvisibility", |
| llvm::cl::desc("Set the default symbol visibility:"), |
| llvm::cl::init(LangOptions::Default), |
| llvm::cl::values(clEnumValN(LangOptions::Default, "default", |
| "Use default symbol visibility"), |
| clEnumValN(LangOptions::Hidden, "hidden", |
| "Use hidden symbol visibility"), |
| clEnumValN(LangOptions::Protected,"protected", |
| "Use protected symbol visibility"), |
| clEnumValEnd)); |
| |
| static llvm::cl::opt<unsigned> |
| TemplateDepth("ftemplate-depth", llvm::cl::init(99), |
| llvm::cl::desc("Maximum depth of recursive template " |
| "instantiation")); |
| |
| static llvm::cl::opt<bool> |
| Trigraphs("trigraphs", llvm::cl::desc("Process trigraph sequences")); |
| |
| static llvm::cl::opt<bool> |
| WritableStrings("fwritable-strings", |
| llvm::cl::desc("Store string literals as writable data")); |
| |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // General Preprocessor Options |
| //===----------------------------------------------------------------------===// |
| |
| namespace preprocessoroptions { |
| |
| static llvm::cl::list<std::string> |
| D_macros("D", llvm::cl::value_desc("macro"), llvm::cl::Prefix, |
| llvm::cl::desc("Predefine the specified macro")); |
| |
| static llvm::cl::list<std::string> |
| ImplicitIncludes("include", llvm::cl::value_desc("file"), |
| llvm::cl::desc("Include file before parsing")); |
| static llvm::cl::list<std::string> |
| ImplicitMacroIncludes("imacros", llvm::cl::value_desc("file"), |
| llvm::cl::desc("Include macros from file before parsing")); |
| |
| static llvm::cl::opt<std::string> |
| ImplicitIncludePCH("include-pch", llvm::cl::value_desc("file"), |
| llvm::cl::desc("Include precompiled header file")); |
| |
| static llvm::cl::opt<std::string> |
| ImplicitIncludePTH("include-pth", llvm::cl::value_desc("file"), |
| llvm::cl::desc("Include file before parsing")); |
| |
| static llvm::cl::opt<std::string> |
| TokenCache("token-cache", llvm::cl::value_desc("path"), |
| llvm::cl::desc("Use specified token cache file")); |
| |
| static llvm::cl::list<std::string> |
| U_macros("U", llvm::cl::value_desc("macro"), llvm::cl::Prefix, |
| llvm::cl::desc("Undefine the specified macro")); |
| |
| static llvm::cl::opt<bool> |
| UndefMacros("undef", llvm::cl::value_desc("macro"), |
| llvm::cl::desc("undef all system defines")); |
| |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Header Search Options |
| //===----------------------------------------------------------------------===// |
| |
| namespace headersearchoptions { |
| |
| static llvm::cl::opt<bool> |
| nostdinc("nostdinc", llvm::cl::desc("Disable standard #include directories")); |
| |
| static llvm::cl::opt<bool> |
| nobuiltininc("nobuiltininc", |
| llvm::cl::desc("Disable builtin #include directories")); |
| |
| // Various command line options. These four add directories to each chain. |
| static llvm::cl::list<std::string> |
| F_dirs("F", llvm::cl::value_desc("directory"), llvm::cl::Prefix, |
| llvm::cl::desc("Add directory to framework include search path")); |
| |
| static llvm::cl::list<std::string> |
| I_dirs("I", llvm::cl::value_desc("directory"), llvm::cl::Prefix, |
| llvm::cl::desc("Add directory to include search path")); |
| |
| static llvm::cl::list<std::string> |
| idirafter_dirs("idirafter", llvm::cl::value_desc("directory"), llvm::cl::Prefix, |
| llvm::cl::desc("Add directory to AFTER include search path")); |
| |
| static llvm::cl::list<std::string> |
| iquote_dirs("iquote", llvm::cl::value_desc("directory"), llvm::cl::Prefix, |
| llvm::cl::desc("Add directory to QUOTE include search path")); |
| |
| static llvm::cl::list<std::string> |
| isystem_dirs("isystem", llvm::cl::value_desc("directory"), llvm::cl::Prefix, |
| llvm::cl::desc("Add directory to SYSTEM include search path")); |
| |
| // These handle -iprefix/-iwithprefix/-iwithprefixbefore. |
| static llvm::cl::list<std::string> |
| iprefix_vals("iprefix", llvm::cl::value_desc("prefix"), llvm::cl::Prefix, |
| llvm::cl::desc("Set the -iwithprefix/-iwithprefixbefore prefix")); |
| static llvm::cl::list<std::string> |
| iwithprefix_vals("iwithprefix", llvm::cl::value_desc("dir"), llvm::cl::Prefix, |
| llvm::cl::desc("Set directory to SYSTEM include search path with prefix")); |
| static llvm::cl::list<std::string> |
| iwithprefixbefore_vals("iwithprefixbefore", llvm::cl::value_desc("dir"), |
| llvm::cl::Prefix, |
| llvm::cl::desc("Set directory to include search path with prefix")); |
| |
| static llvm::cl::opt<std::string> |
| isysroot("isysroot", llvm::cl::value_desc("dir"), llvm::cl::init("/"), |
| llvm::cl::desc("Set the system root directory (usually /)")); |
| |
| static llvm::cl::opt<bool> |
| Verbose("v", llvm::cl::desc("Enable verbose output")); |
| |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Preprocessed Output Options |
| //===----------------------------------------------------------------------===// |
| |
| namespace preprocessoroutputoptions { |
| |
| static llvm::cl::opt<bool> |
| DisableLineMarkers("P", llvm::cl::desc("Disable linemarker output in -E mode")); |
| |
| static llvm::cl::opt<bool> |
| EnableCommentOutput("C", llvm::cl::desc("Enable comment output in -E mode")); |
| |
| static llvm::cl::opt<bool> |
| EnableMacroCommentOutput("CC", |
| llvm::cl::desc("Enable comment output in -E mode, " |
| "even from macro expansions")); |
| static llvm::cl::opt<bool> |
| DumpMacros("dM", llvm::cl::desc("Print macro definitions in -E mode instead of" |
| " normal output")); |
| static llvm::cl::opt<bool> |
| DumpDefines("dD", llvm::cl::desc("Print macro definitions in -E mode in " |
| "addition to normal output")); |
| |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Option Object Construction |
| //===----------------------------------------------------------------------===// |
| |
| void clang::InitializeCodeGenOptions(CodeGenOptions &Opts, |
| const TargetInfo &Target) { |
| using namespace codegenoptions; |
| |
| // Compute the target features, we need the target to handle this because |
| // features may have dependencies on one another. |
| llvm::StringMap<bool> Features; |
| Target.getDefaultFeatures(TargetCPU, Features); |
| |
| // Apply the user specified deltas. |
| for (llvm::cl::list<std::string>::iterator it = TargetFeatures.begin(), |
| ie = TargetFeatures.end(); it != ie; ++it) { |
| const char *Name = it->c_str(); |
| |
| // FIXME: Don't handle errors like this. |
| if (Name[0] != '-' && Name[0] != '+') { |
| fprintf(stderr, "error: clang-cc: invalid target feature string: %s\n", |
| Name); |
| exit(1); |
| } |
| |
| // Apply the feature via the target. |
| if (!Target.setFeatureEnabled(Features, Name + 1, (Name[0] == '+'))) { |
| fprintf(stderr, "error: clang-cc: invalid target feature name: %s\n", |
| Name + 1); |
| exit(1); |
| } |
| } |
| |
| // Add the features to the compile options. |
| // |
| // FIXME: If we are completely confident that we have the right set, we only |
| // need to pass the minuses. |
| for (llvm::StringMap<bool>::const_iterator it = Features.begin(), |
| ie = Features.end(); it != ie; ++it) |
| Opts.Features.push_back(std::string(it->second ? "+" : "-") + it->first()); |
| |
| // -Os implies -O2 |
| Opts.OptimizationLevel = OptSize ? 2 : OptLevel; |
| |
| // We must always run at least the always inlining pass. |
| Opts.Inlining = (Opts.OptimizationLevel > 1) ? CodeGenOptions::NormalInlining |
| : CodeGenOptions::OnlyAlwaysInlining; |
| |
| Opts.CPU = TargetCPU; |
| Opts.DebugInfo = GenerateDebugInfo; |
| Opts.DisableLLVMOpts = DisableLLVMOptimizations; |
| Opts.DisableRedZone = DisableRedZone; |
| Opts.MergeAllConstants = !NoMergeConstants; |
| Opts.NoCommon = NoCommon; |
| Opts.NoImplicitFloat = NoImplicitFloat; |
| Opts.OptimizeSize = OptSize; |
| Opts.SimplifyLibCalls = 1; |
| Opts.UnrollLoops = (Opts.OptimizationLevel > 1 && !OptSize); |
| |
| #ifdef NDEBUG |
| Opts.VerifyModule = 0; |
| #endif |
| } |
| |
| void clang::InitializeDependencyOutputOptions(DependencyOutputOptions &Opts) { |
| using namespace dependencyoutputoptions; |
| |
| Opts.OutputFile = DependencyFile; |
| Opts.Targets = DependencyTargets; |
| Opts.IncludeSystemHeaders = DependenciesIncludeSystemHeaders; |
| Opts.UsePhonyTargets = PhonyDependencyTarget; |
| } |
| |
| void clang::InitializeDiagnosticOptions(DiagnosticOptions &Opts) { |
| using namespace diagnosticoptions; |
| |
| Opts.Warnings = OptWarnings; |
| Opts.DumpBuildInformation = DumpBuildInformation; |
| Opts.IgnoreWarnings = OptNoWarnings; |
| Opts.MessageLength = MessageLength; |
| Opts.NoRewriteMacros = SilenceRewriteMacroWarning; |
| Opts.Pedantic = OptPedantic; |
| Opts.PedanticErrors = OptPedanticErrors; |
| Opts.ShowCarets = !NoCaretDiagnostics; |
| Opts.ShowColors = PrintColorDiagnostic; |
| Opts.ShowColumn = !NoShowColumn; |
| Opts.ShowFixits = !NoDiagnosticsFixIt; |
| Opts.ShowLocation = !NoShowLocation; |
| Opts.ShowOptionNames = PrintDiagnosticOption; |
| Opts.ShowSourceRanges = PrintSourceRangeInfo; |
| Opts.VerifyDiagnostics = VerifyDiagnostics; |
| } |
| |
| void clang::InitializeFrontendOptions(FrontendOptions &Opts) { |
| using namespace frontendoptions; |
| |
| // Select program action. |
| Opts.ProgramAction = ProgAction; |
| if (PluginActionName.getPosition()) { |
| Opts.ProgramAction = frontend::PluginAction; |
| Opts.ActionName = PluginActionName; |
| } |
| |
| Opts.CodeCompletionAt = CodeCompletionAt; |
| Opts.DebugCodeCompletionPrinter = CodeCompletionDebugPrinter; |
| Opts.DisableFree = DisableFree; |
| Opts.EmptyInputOnly = EmptyInputOnly; |
| Opts.FixItLocations = FixItAtLocations; |
| Opts.OutputFile = OutputFile; |
| Opts.RelocatablePCH = RelocatablePCH; |
| Opts.ShowMacrosInCodeCompletion = CodeCompletionWantsMacros; |
| Opts.ShowStats = Stats; |
| Opts.ShowTimers = TimeReport; |
| Opts.TargetABI = TargetABI; |
| Opts.TargetTriple = TargetTriple; |
| Opts.ViewClassInheritance = InheritanceViewCls; |
| |
| // '-' is the default input if none is given. |
| if (InputFilenames.empty()) { |
| FrontendOptions::InputKind IK = InputType; |
| if (IK == FrontendOptions::IK_None) IK = FrontendOptions::IK_C; |
| Opts.Inputs.push_back(std::make_pair(IK, "-")); |
| } else { |
| for (unsigned i = 0, e = InputFilenames.size(); i != e; ++i) { |
| FrontendOptions::InputKind IK = InputType; |
| llvm::StringRef Ext = |
| llvm::StringRef(InputFilenames[i]).rsplit('.').second; |
| if (IK == FrontendOptions::IK_None) |
| IK = FrontendOptions::getInputKindForExtension(Ext); |
| Opts.Inputs.push_back(std::make_pair(IK, InputFilenames[i])); |
| } |
| } |
| } |
| |
| void clang::InitializeHeaderSearchOptions(HeaderSearchOptions &Opts, |
| llvm::StringRef BuiltinIncludePath, |
| const LangOptions &Lang) { |
| using namespace headersearchoptions; |
| |
| Opts.Sysroot = isysroot; |
| Opts.Verbose = Verbose; |
| |
| // Handle -I... and -F... options, walking the lists in parallel. |
| unsigned Iidx = 0, Fidx = 0; |
| while (Iidx < I_dirs.size() && Fidx < F_dirs.size()) { |
| if (I_dirs.getPosition(Iidx) < F_dirs.getPosition(Fidx)) { |
| Opts.AddPath(I_dirs[Iidx], frontend::Angled, false, true, false); |
| ++Iidx; |
| } else { |
| Opts.AddPath(F_dirs[Fidx], frontend::Angled, false, true, true); |
| ++Fidx; |
| } |
| } |
| |
| // Consume what's left from whatever list was longer. |
| for (; Iidx != I_dirs.size(); ++Iidx) |
| Opts.AddPath(I_dirs[Iidx], frontend::Angled, false, true, false); |
| for (; Fidx != F_dirs.size(); ++Fidx) |
| Opts.AddPath(F_dirs[Fidx], frontend::Angled, false, true, true); |
| |
| // Handle -idirafter... options. |
| for (unsigned i = 0, e = idirafter_dirs.size(); i != e; ++i) |
| Opts.AddPath(idirafter_dirs[i], frontend::After, |
| false, true, false); |
| |
| // Handle -iquote... options. |
| for (unsigned i = 0, e = iquote_dirs.size(); i != e; ++i) |
| Opts.AddPath(iquote_dirs[i], frontend::Quoted, false, true, false); |
| |
| // Handle -isystem... options. |
| for (unsigned i = 0, e = isystem_dirs.size(); i != e; ++i) |
| Opts.AddPath(isystem_dirs[i], frontend::System, false, true, false); |
| |
| // Walk the -iprefix/-iwithprefix/-iwithprefixbefore argument lists in |
| // parallel, processing the values in order of occurance to get the right |
| // prefixes. |
| { |
| std::string Prefix = ""; // FIXME: this isn't the correct default prefix. |
| unsigned iprefix_idx = 0; |
| unsigned iwithprefix_idx = 0; |
| unsigned iwithprefixbefore_idx = 0; |
| bool iprefix_done = iprefix_vals.empty(); |
| bool iwithprefix_done = iwithprefix_vals.empty(); |
| bool iwithprefixbefore_done = iwithprefixbefore_vals.empty(); |
| while (!iprefix_done || !iwithprefix_done || !iwithprefixbefore_done) { |
| if (!iprefix_done && |
| (iwithprefix_done || |
| iprefix_vals.getPosition(iprefix_idx) < |
| iwithprefix_vals.getPosition(iwithprefix_idx)) && |
| (iwithprefixbefore_done || |
| iprefix_vals.getPosition(iprefix_idx) < |
| iwithprefixbefore_vals.getPosition(iwithprefixbefore_idx))) { |
| Prefix = iprefix_vals[iprefix_idx]; |
| ++iprefix_idx; |
| iprefix_done = iprefix_idx == iprefix_vals.size(); |
| } else if (!iwithprefix_done && |
| (iwithprefixbefore_done || |
| iwithprefix_vals.getPosition(iwithprefix_idx) < |
| iwithprefixbefore_vals.getPosition(iwithprefixbefore_idx))) { |
| Opts.AddPath(Prefix+iwithprefix_vals[iwithprefix_idx], |
| frontend::System, false, false, false); |
| ++iwithprefix_idx; |
| iwithprefix_done = iwithprefix_idx == iwithprefix_vals.size(); |
| } else { |
| Opts.AddPath(Prefix+iwithprefixbefore_vals[iwithprefixbefore_idx], |
| frontend::Angled, false, false, false); |
| ++iwithprefixbefore_idx; |
| iwithprefixbefore_done = |
| iwithprefixbefore_idx == iwithprefixbefore_vals.size(); |
| } |
| } |
| } |
| |
| // Add CPATH environment paths. |
| if (const char *Env = getenv("CPATH")) |
| Opts.EnvIncPath = Env; |
| |
| // Add language specific environment paths. |
| if (Lang.CPlusPlus && Lang.ObjC1) { |
| if (const char *Env = getenv("OBJCPLUS_INCLUDE_PATH")) |
| Opts.LangEnvIncPath = Env; |
| } else if (Lang.CPlusPlus) { |
| if (const char *Env = getenv("CPLUS_INCLUDE_PATH")) |
| Opts.LangEnvIncPath = Env; |
| } else if (Lang.ObjC1) { |
| if (const char *Env = getenv("OBJC_INCLUDE_PATH")) |
| Opts.LangEnvIncPath = Env; |
| } else { |
| if (const char *Env = getenv("C_INCLUDE_PATH")) |
| Opts.LangEnvIncPath = Env; |
| } |
| |
| if (!nobuiltininc) |
| Opts.BuiltinIncludePath = BuiltinIncludePath; |
| |
| Opts.UseStandardIncludes = !nostdinc; |
| } |
| |
| void clang::InitializePreprocessorOptions(PreprocessorOptions &Opts) { |
| using namespace preprocessoroptions; |
| |
| Opts.setImplicitPCHInclude(ImplicitIncludePCH); |
| Opts.setImplicitPTHInclude(ImplicitIncludePTH); |
| |
| // Select the token cache file, we don't support more than one currently so we |
| // can't have both an implicit-pth and a token cache file. |
| if (TokenCache.getPosition() && ImplicitIncludePTH.getPosition()) { |
| // FIXME: Don't fail like this. |
| fprintf(stderr, "error: cannot use both -token-cache and -include-pth " |
| "options\n"); |
| exit(1); |
| } |
| if (TokenCache.getPosition()) |
| Opts.setTokenCache(TokenCache); |
| else |
| Opts.setTokenCache(ImplicitIncludePTH); |
| |
| // Use predefines? |
| Opts.setUsePredefines(!UndefMacros); |
| |
| // Add macros from the command line. |
| unsigned d = 0, D = D_macros.size(); |
| unsigned u = 0, U = U_macros.size(); |
| while (d < D || u < U) { |
| if (u == U || (d < D && D_macros.getPosition(d) < U_macros.getPosition(u))) |
| Opts.addMacroDef(D_macros[d++]); |
| else |
| Opts.addMacroUndef(U_macros[u++]); |
| } |
| |
| // If -imacros are specified, include them now. These are processed before |
| // any -include directives. |
| for (unsigned i = 0, e = ImplicitMacroIncludes.size(); i != e; ++i) |
| Opts.addMacroInclude(ImplicitMacroIncludes[i]); |
| |
| // Add the ordered list of -includes, sorting in the implicit include options |
| // at the appropriate location. |
| llvm::SmallVector<std::pair<unsigned, std::string*>, 8> OrderedPaths; |
| std::string OriginalFile; |
| |
| if (!ImplicitIncludePTH.empty()) |
| OrderedPaths.push_back(std::make_pair(ImplicitIncludePTH.getPosition(), |
| &ImplicitIncludePTH)); |
| if (!ImplicitIncludePCH.empty()) { |
| OriginalFile = PCHReader::getOriginalSourceFile(ImplicitIncludePCH); |
| // FIXME: Don't fail like this. |
| if (OriginalFile.empty()) |
| exit(1); |
| OrderedPaths.push_back(std::make_pair(ImplicitIncludePCH.getPosition(), |
| &OriginalFile)); |
| } |
| for (unsigned i = 0, e = ImplicitIncludes.size(); i != e; ++i) |
| OrderedPaths.push_back(std::make_pair(ImplicitIncludes.getPosition(i), |
| &ImplicitIncludes[i])); |
| llvm::array_pod_sort(OrderedPaths.begin(), OrderedPaths.end()); |
| |
| for (unsigned i = 0, e = OrderedPaths.size(); i != e; ++i) |
| Opts.addInclude(*OrderedPaths[i].second); |
| } |
| |
| void clang::InitializeLangOptions(LangOptions &Options, |
| FrontendOptions::InputKind IK, |
| TargetInfo &Target, |
| const CodeGenOptions &CodeGenOpts) { |
| using namespace langoptions; |
| |
| bool NoPreprocess = false; |
| |
| switch (IK) { |
| case FrontendOptions::IK_None: |
| case FrontendOptions::IK_AST: |
| assert(0 && "Invalid input kind!"); |
| case FrontendOptions::IK_Asm: |
| Options.AsmPreprocessor = 1; |
| // FALLTHROUGH |
| case FrontendOptions::IK_PreprocessedC: |
| NoPreprocess = true; |
| // FALLTHROUGH |
| case FrontendOptions::IK_C: |
| // Do nothing. |
| break; |
| case FrontendOptions::IK_PreprocessedCXX: |
| NoPreprocess = true; |
| // FALLTHROUGH |
| case FrontendOptions::IK_CXX: |
| Options.CPlusPlus = 1; |
| break; |
| case FrontendOptions::IK_PreprocessedObjC: |
| NoPreprocess = true; |
| // FALLTHROUGH |
| case FrontendOptions::IK_ObjC: |
| Options.ObjC1 = Options.ObjC2 = 1; |
| break; |
| case FrontendOptions::IK_PreprocessedObjCXX: |
| NoPreprocess = true; |
| // FALLTHROUGH |
| case FrontendOptions::IK_ObjCXX: |
| Options.ObjC1 = Options.ObjC2 = 1; |
| Options.CPlusPlus = 1; |
| break; |
| case FrontendOptions::IK_OpenCL: |
| Options.OpenCL = 1; |
| Options.AltiVec = 1; |
| Options.CXXOperatorNames = 1; |
| Options.LaxVectorConversions = 1; |
| break; |
| } |
| |
| if (ObjCExclusiveGC) |
| Options.setGCMode(LangOptions::GCOnly); |
| else if (ObjCEnableGC) |
| Options.setGCMode(LangOptions::HybridGC); |
| |
| if (ObjCEnableGCBitmapPrint) |
| Options.ObjCGCBitmapPrint = 1; |
| |
| if (AltiVec) |
| Options.AltiVec = 1; |
| |
| if (PThread) |
| Options.POSIXThreads = 1; |
| |
| Options.setVisibilityMode(SymbolVisibility); |
| Options.OverflowChecking = OverflowChecking; |
| |
| |
| // Allow the target to set the default the language options as it sees fit. |
| Target.getDefaultLangOptions(Options); |
| |
| // Pass the map of target features to the target for validation and |
| // processing. |
| Target.HandleTargetFeatures(CodeGenOpts.Features); |
| |
| if (LangStd == lang_unspecified) { |
| // Based on the base language, pick one. |
| switch (IK) { |
| case FrontendOptions::IK_None: |
| case FrontendOptions::IK_AST: |
| assert(0 && "Invalid input kind!"); |
| case FrontendOptions::IK_OpenCL: |
| LangStd = lang_c99; |
| break; |
| case FrontendOptions::IK_Asm: |
| case FrontendOptions::IK_C: |
| case FrontendOptions::IK_PreprocessedC: |
| case FrontendOptions::IK_ObjC: |
| case FrontendOptions::IK_PreprocessedObjC: |
| LangStd = lang_gnu99; |
| break; |
| case FrontendOptions::IK_CXX: |
| case FrontendOptions::IK_PreprocessedCXX: |
| case FrontendOptions::IK_ObjCXX: |
| case FrontendOptions::IK_PreprocessedObjCXX: |
| LangStd = lang_gnucxx98; |
| break; |
| } |
| } |
| |
| switch (LangStd) { |
| default: assert(0 && "Unknown language standard!"); |
| |
| // Fall through from newer standards to older ones. This isn't really right. |
| // FIXME: Enable specifically the right features based on the language stds. |
| case lang_gnucxx0x: |
| case lang_cxx0x: |
| Options.CPlusPlus0x = 1; |
| // FALL THROUGH |
| case lang_gnucxx98: |
| case lang_cxx98: |
| Options.CPlusPlus = 1; |
| Options.CXXOperatorNames = !NoOperatorNames; |
| // FALL THROUGH. |
| case lang_gnu99: |
| case lang_c99: |
| Options.C99 = 1; |
| Options.HexFloats = 1; |
| // FALL THROUGH. |
| case lang_gnu89: |
| Options.BCPLComment = 1; // Only for C99/C++. |
| // FALL THROUGH. |
| case lang_c94: |
| Options.Digraphs = 1; // C94, C99, C++. |
| // FALL THROUGH. |
| case lang_c89: |
| break; |
| } |
| |
| // GNUMode - Set if we're in gnu99, gnu89, gnucxx98, etc. |
| switch (LangStd) { |
| default: assert(0 && "Unknown language standard!"); |
| case lang_gnucxx0x: |
| case lang_gnucxx98: |
| case lang_gnu99: |
| case lang_gnu89: |
| Options.GNUMode = 1; |
| break; |
| case lang_cxx0x: |
| case lang_cxx98: |
| case lang_c99: |
| case lang_c94: |
| case lang_c89: |
| Options.GNUMode = 0; |
| break; |
| } |
| |
| if (Options.CPlusPlus) { |
| Options.C99 = 0; |
| Options.HexFloats = 0; |
| } |
| |
| if (LangStd == lang_c89 || LangStd == lang_c94 || LangStd == lang_gnu89) |
| Options.ImplicitInt = 1; |
| else |
| Options.ImplicitInt = 0; |
| |
| // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs |
| // is specified, or -std is set to a conforming mode. |
| Options.Trigraphs = !Options.GNUMode; |
| if (Trigraphs.getPosition()) |
| Options.Trigraphs = Trigraphs; // Command line option wins if specified. |
| |
| // If in a conformant language mode (e.g. -std=c99) Blocks defaults to off |
| // even if they are normally on for the target. In GNU modes (e.g. |
| // -std=gnu99) the default for blocks depends on the target settings. |
| // However, blocks are not turned off when compiling Obj-C or Obj-C++ code. |
| if (!Options.ObjC1 && !Options.GNUMode) |
| Options.Blocks = 0; |
| |
| // Default to not accepting '$' in identifiers when preprocessing assembler, |
| // but do accept when preprocessing C. FIXME: these defaults are right for |
| // darwin, are they right everywhere? |
| Options.DollarIdents = IK != FrontendOptions::IK_Asm; |
| if (DollarsInIdents.getPosition()) // Explicit setting overrides default. |
| Options.DollarIdents = DollarsInIdents; |
| |
| if (PascalStrings.getPosition()) |
| Options.PascalStrings = PascalStrings; |
| if (MSExtensions.getPosition()) |
| Options.Microsoft = MSExtensions; |
| Options.WritableStrings = WritableStrings; |
| if (NoLaxVectorConversions.getPosition()) |
| Options.LaxVectorConversions = 0; |
| Options.Exceptions = Exceptions; |
| Options.Rtti = Rtti; |
| if (EnableBlocks.getPosition()) |
| Options.Blocks = EnableBlocks; |
| if (CharIsSigned.getPosition()) |
| Options.CharIsSigned = CharIsSigned; |
| if (ShortWChar.getPosition()) |
| Options.ShortWChar = ShortWChar; |
| |
| if (!AllowBuiltins) |
| Options.NoBuiltin = 1; |
| if (Freestanding) |
| Options.Freestanding = Options.NoBuiltin = 1; |
| |
| if (EnableHeinousExtensions) |
| Options.HeinousExtensions = 1; |
| |
| if (AccessControl) |
| Options.AccessControl = 1; |
| |
| Options.ElideConstructors = !NoElideConstructors; |
| |
| // OpenCL and C++ both have bool, true, false keywords. |
| Options.Bool = Options.OpenCL | Options.CPlusPlus; |
| |
| Options.MathErrno = MathErrno; |
| |
| Options.InstantiationDepth = TemplateDepth; |
| |
| // Override the default runtime if the user requested it. |
| if (NeXTRuntime) |
| Options.NeXTRuntime = 1; |
| else if (GNURuntime) |
| Options.NeXTRuntime = 0; |
| |
| if (!ObjCConstantStringClass.empty()) |
| Options.ObjCConstantStringClass = ObjCConstantStringClass.c_str(); |
| |
| if (ObjCNonFragileABI) |
| Options.ObjCNonFragileABI = 1; |
| |
| if (EmitAllDecls) |
| Options.EmitAllDecls = 1; |
| |
| // The __OPTIMIZE_SIZE__ define is tied to -Oz, which we don't support. |
| Options.OptimizeSize = 0; |
| Options.Optimize = !!CodeGenOpts.OptimizationLevel; |
| |
| assert(PICLevel <= 2 && "Invalid value for -pic-level"); |
| Options.PICLevel = PICLevel; |
| |
| Options.GNUInline = !Options.C99; |
| // FIXME: This is affected by other options (-fno-inline). |
| |
| // 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. |
| Options.NoInline = !CodeGenOpts.OptimizationLevel; |
| |
| Options.Static = StaticDefine; |
| |
| switch (StackProtector) { |
| default: |
| assert(StackProtector <= 2 && "Invalid value for -stack-protector"); |
| case -1: break; |
| case 0: Options.setStackProtectorMode(LangOptions::SSPOff); break; |
| case 1: Options.setStackProtectorMode(LangOptions::SSPOn); break; |
| case 2: Options.setStackProtectorMode(LangOptions::SSPReq); break; |
| } |
| |
| if (MainFileName.getPosition()) |
| Options.setMainFileName(MainFileName.c_str()); |
| |
| Target.setForcedLangOptions(Options); |
| } |
| |
| void |
| clang::InitializePreprocessorOutputOptions(PreprocessorOutputOptions &Opts) { |
| using namespace preprocessoroutputoptions; |
| |
| Opts.ShowCPP = !DumpMacros; |
| Opts.ShowMacros = DumpMacros || DumpDefines; |
| Opts.ShowLineMarkers = !DisableLineMarkers; |
| Opts.ShowComments = EnableCommentOutput; |
| Opts.ShowMacroComments = EnableMacroCommentOutput; |
| } |