diff options
Diffstat (limited to 'tools/clang-cc/clang-cc.cpp')
| -rw-r--r-- | tools/clang-cc/clang-cc.cpp | 2391 |
1 files changed, 193 insertions, 2198 deletions
diff --git a/tools/clang-cc/clang-cc.cpp b/tools/clang-cc/clang-cc.cpp index 26ba42d670027..bae8697e14bd0 100644 --- a/tools/clang-cc/clang-cc.cpp +++ b/tools/clang-cc/clang-cc.cpp @@ -8,2122 +8,198 @@ //===----------------------------------------------------------------------===// // // This utility may be invoked in the following manner: -// clang --help - Output help info. -// clang [options] - Read from stdin. -// clang [options] file - Read from "file". -// clang [options] file1 file2 - Read these files. -// -//===----------------------------------------------------------------------===// -// -// TODO: Options to support: -// -// -Wfatal-errors -// -ftabstop=width +// clang-cc --help - Output help info. +// clang-cc [options] - Read from stdin. +// clang-cc [options] file - Read from "file". +// clang-cc [options] file1 file2 - Read these files. // //===----------------------------------------------------------------------===// -#include "clang/Frontend/AnalysisConsumer.h" -#include "clang/Frontend/ASTConsumers.h" -#include "clang/Frontend/ASTUnit.h" -#include "clang/Frontend/CompileOptions.h" -#include "clang/Frontend/DiagnosticOptions.h" -#include "clang/Frontend/FixItRewriter.h" -#include "clang/Frontend/FrontendDiagnostic.h" -#include "clang/Frontend/InitHeaderSearch.h" -#include "clang/Frontend/InitPreprocessor.h" -#include "clang/Frontend/PathDiagnosticClients.h" -#include "clang/Frontend/PCHReader.h" -#include "clang/Frontend/TextDiagnosticBuffer.h" -#include "clang/Frontend/TextDiagnosticPrinter.h" -#include "clang/Frontend/CommandLineSourceLoc.h" -#include "clang/Frontend/Utils.h" -#include "clang/Analysis/PathDiagnostic.h" -#include "clang/CodeGen/ModuleBuilder.h" -#include "clang/Sema/CodeCompleteConsumer.h" -#include "clang/Sema/ParseAST.h" -#include "clang/Sema/SemaDiagnostic.h" -#include "clang/AST/ASTConsumer.h" -#include "clang/AST/ASTContext.h" -#include "clang/AST/Decl.h" -#include "clang/AST/DeclGroup.h" -#include "clang/Parse/Parser.h" -#include "clang/Lex/HeaderSearch.h" -#include "clang/Lex/LexDiagnostic.h" +#include "Options.h" +#include "clang/Basic/Diagnostic.h" #include "clang/Basic/FileManager.h" #include "clang/Basic/SourceManager.h" #include "clang/Basic/TargetInfo.h" #include "clang/Basic/Version.h" +#include "clang/Frontend/CompilerInstance.h" +#include "clang/Frontend/CompilerInvocation.h" +#include "clang/Frontend/FrontendActions.h" +#include "clang/Frontend/FrontendDiagnostic.h" +#include "clang/Frontend/FrontendPluginRegistry.h" +#include "clang/Frontend/VerifyDiagnosticsClient.h" #include "llvm/LLVMContext.h" #include "llvm/ADT/OwningPtr.h" -#include "llvm/ADT/SmallPtrSet.h" -#include "llvm/ADT/StringExtras.h" -#include "llvm/ADT/StringMap.h" -#include "llvm/ADT/STLExtras.h" -#include "llvm/Config/config.h" -#include "llvm/Support/CommandLine.h" #include "llvm/Support/ErrorHandling.h" #include "llvm/Support/ManagedStatic.h" -#include "llvm/Support/MemoryBuffer.h" #include "llvm/Support/PluginLoader.h" #include "llvm/Support/PrettyStackTrace.h" #include "llvm/Support/Timer.h" #include "llvm/Support/raw_ostream.h" #include "llvm/System/Host.h" #include "llvm/System/Path.h" -#include "llvm/System/Program.h" #include "llvm/System/Signals.h" #include "llvm/Target/TargetSelect.h" -#include <cstdlib> -#if HAVE_SYS_TYPES_H -# include <sys/types.h> -#endif - using namespace clang; //===----------------------------------------------------------------------===// -// Source Location Parser -//===----------------------------------------------------------------------===// - -static bool ResolveParsedLocation(ParsedSourceLocation &ParsedLoc, - FileManager &FileMgr, - RequestedSourceLocation &Result) { - const FileEntry *File = FileMgr.getFile(ParsedLoc.FileName); - if (!File) - return true; - - Result.File = File; - Result.Line = ParsedLoc.Line; - Result.Column = ParsedLoc.Column; - return false; -} - -//===----------------------------------------------------------------------===// -// Global options. -//===----------------------------------------------------------------------===// - -/// ClangFrontendTimer - The front-end activities should charge time to it with -/// TimeRegion. The -ftime-report option controls whether this will do -/// anything. -llvm::Timer *ClangFrontendTimer = 0; - -static llvm::cl::opt<bool> -Verbose("v", llvm::cl::desc("Enable verbose output")); -static llvm::cl::opt<bool> -Stats("print-stats", - llvm::cl::desc("Print performance metrics and statistics")); -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")); - -enum ProgActions { - RewriteObjC, // ObjC->C Rewriter. - RewriteBlocks, // ObjC->C Rewriter for Blocks. - RewriteMacros, // Expand macros but not #includes. - RewriteTest, // Rewriter playground - FixIt, // Fix-It Rewriter - HTMLTest, // HTML displayer testing stuff. - EmitAssembly, // Emit a .s file. - EmitLLVM, // Emit a .ll file. - EmitBC, // Emit a .bc file. - EmitLLVMOnly, // Generate LLVM IR, but do not - EmitHTML, // Translate input source into HTML. - ASTPrint, // Parse ASTs and print them. - ASTPrintXML, // Parse ASTs and print them in XML. - ASTDump, // Parse ASTs and dump them. - ASTView, // Parse ASTs and view them in Graphviz. - PrintDeclContext, // Print DeclContext and their Decls. - DumpRecordLayouts, // Dump record layout information. - ParsePrintCallbacks, // Parse and print each callback. - ParseSyntaxOnly, // Parse and perform semantic analysis. - ParseNoop, // Parse with noop callbacks. - RunPreprocessorOnly, // Just lex, no output. - PrintPreprocessedInput, // -E mode. - DumpTokens, // Dump out preprocessed tokens. - DumpRawTokens, // Dump out raw tokens. - RunAnalysis, // Run one or more source code analyses. - GeneratePTH, // Generate pre-tokenized header. - GeneratePCH, // Generate pre-compiled header. - InheritanceView // View C++ inheritance for a specified class. -}; - -static llvm::cl::opt<ProgActions> -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(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"), - clEnumValN(FixIt, "fixit", - "Apply fix-it advice to the input source"), - clEnumValEnd)); - - -static llvm::cl::opt<std::string> -OutputFile("o", - llvm::cl::value_desc("path"), - llvm::cl::desc("Specify output file")); - - -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")); - -/// \brief Buld a new code-completion consumer that prints the results of -/// code completion to standard output. -static CodeCompleteConsumer *BuildPrintingCodeCompleter(Sema &S, void *) { - return new PrintingCodeCompleteConsumer(S, llvm::outs()); -} - -//===----------------------------------------------------------------------===// -// PTH. -//===----------------------------------------------------------------------===// - -static llvm::cl::opt<std::string> -TokenCache("token-cache", llvm::cl::value_desc("path"), - llvm::cl::desc("Use specified token cache file")); - -//===----------------------------------------------------------------------===// -// Diagnostic Options -//===----------------------------------------------------------------------===// - -static DiagnosticOptions DiagOpts; - -static llvm::cl::opt<bool> -VerifyDiagnostics("verify", - llvm::cl::desc("Verify emitted diagnostics and warnings")); - -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> -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")); - -//===----------------------------------------------------------------------===// -// C++ Visualization. -//===----------------------------------------------------------------------===// - -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")); - -//===----------------------------------------------------------------------===// -// Builtin Options -//===----------------------------------------------------------------------===// - -static llvm::cl::opt<bool> -TimeReport("ftime-report", - llvm::cl::desc("Print the amount of time each " - "phase of compilation takes")); - -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> -AllowBuiltins("fbuiltin", llvm::cl::init(true), - llvm::cl::desc("Disable implicit builtin knowledge of functions")); - - -static llvm::cl::opt<bool> -MathErrno("fmath-errno", llvm::cl::init(true), - llvm::cl::desc("Require math functions to respect errno")); - -//===----------------------------------------------------------------------===// -// Language Options -//===----------------------------------------------------------------------===// - -enum LangKind { - langkind_unspecified, - langkind_c, - langkind_c_cpp, - langkind_asm_cpp, - langkind_cxx, - langkind_cxx_cpp, - langkind_objc, - langkind_objc_cpp, - langkind_objcxx, - langkind_objcxx_cpp, - langkind_ocl, - langkind_ast -}; - -static llvm::cl::opt<LangKind> -BaseLang("x", llvm::cl::desc("Base language to compile"), - llvm::cl::init(langkind_unspecified), - llvm::cl::values(clEnumValN(langkind_c, "c", "C"), - clEnumValN(langkind_ocl, "cl", "OpenCL C"), - clEnumValN(langkind_cxx, "c++", "C++"), - clEnumValN(langkind_objc, "objective-c", "Objective C"), - clEnumValN(langkind_objcxx,"objective-c++","Objective C++"), - clEnumValN(langkind_c_cpp, "cpp-output", - "Preprocessed C"), - clEnumValN(langkind_asm_cpp, "assembler-with-cpp", - "Preprocessed asm"), - clEnumValN(langkind_cxx_cpp, "c++-cpp-output", - "Preprocessed C++"), - clEnumValN(langkind_objc_cpp, "objective-c-cpp-output", - "Preprocessed Objective C"), - clEnumValN(langkind_objcxx_cpp, "objective-c++-cpp-output", - "Preprocessed Objective C++"), - clEnumValN(langkind_c, "c-header", - "C header"), - clEnumValN(langkind_objc, "objective-c-header", - "Objective-C header"), - clEnumValN(langkind_cxx, "c++-header", - "C++ header"), - clEnumValN(langkind_objcxx, "objective-c++-header", - "Objective-C++ header"), - clEnumValN(langkind_ast, "ast", - "Clang AST"), - clEnumValEnd)); - -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<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> -ObjCEnableGCBitmapPrint("print-ivar-layout", - llvm::cl::desc("Enable Objective-C Ivar layout bitmap print trace")); - -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<bool> -OverflowChecking("ftrapv", - llvm::cl::desc("Trap on integer overflow"), - llvm::cl::init(false)); - -static llvm::cl::opt<bool> -AltiVec("faltivec", llvm::cl::desc("Enable AltiVec vector initializer syntax"), - llvm::cl::init(false)); - -static llvm::cl::opt<bool> -PThread("pthread", llvm::cl::desc("Support POSIX threads in generated code"), - llvm::cl::init(false)); - -static LangKind GetLanguage(llvm::StringRef Filename) { - if (BaseLang != langkind_unspecified) - return BaseLang; - - llvm::StringRef Ext = Filename.rsplit('.').second; - if (Ext == "ast") - return langkind_ast; - else if (Ext == "c") - return langkind_c; - else if (Ext == "S" || Ext == "s") - return langkind_asm_cpp; - else if (Ext == "i") - return langkind_c_cpp; - else if (Ext == "ii") - return langkind_cxx_cpp; - else if (Ext == "m") - return langkind_objc; - else if (Ext == "mi") - return langkind_objc_cpp; - else if (Ext == "mm" || Ext == "M") - return langkind_objcxx; - else if (Ext == "mii") - return langkind_objcxx_cpp; - else if (Ext == "C" || Ext == "cc" || Ext == "cpp" || Ext == "CPP" || - Ext == "c++" || Ext == "cp" || Ext == "cxx") - return langkind_cxx; - else if (Ext == "cl") - return langkind_ocl; - else - return langkind_c; -} - - -static void InitializeCOptions(LangOptions &Options) { - // Do nothing. -} - -static void InitializeObjCOptions(LangOptions &Options) { - Options.ObjC1 = Options.ObjC2 = 1; -} - - -static void InitializeLangOptions(LangOptions &Options, LangKind LK){ - // FIXME: implement -fpreprocessed mode. - bool NoPreprocess = false; - - switch (LK) { - default: assert(0 && "Unknown language kind!"); - case langkind_asm_cpp: - Options.AsmPreprocessor = 1; - // FALLTHROUGH - case langkind_c_cpp: - NoPreprocess = true; - // FALLTHROUGH - case langkind_c: - InitializeCOptions(Options); - break; - case langkind_cxx_cpp: - NoPreprocess = true; - // FALLTHROUGH - case langkind_cxx: - Options.CPlusPlus = 1; - break; - case langkind_objc_cpp: - NoPreprocess = true; - // FALLTHROUGH - case langkind_objc: - InitializeObjCOptions(Options); - break; - case langkind_objcxx_cpp: - NoPreprocess = true; - // FALLTHROUGH - case langkind_objcxx: - Options.ObjC1 = Options.ObjC2 = 1; - Options.CPlusPlus = 1; - break; - case langkind_ocl: - 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; -} - -/// 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> -NoOperatorNames("fno-operator-names", - llvm::cl::desc("Do not treat C++ operator name keywords as " - "synonyms for operators")); - -static llvm::cl::opt<bool> -PascalStrings("fpascal-strings", - llvm::cl::desc("Recognize and construct Pascal-style " - "string literals")); - -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<bool> -WritableStrings("fwritable-strings", - llvm::cl::desc("Store string literals as writable data")); - -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> -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> -ObjCNonFragileABI("fobjc-nonfragile-abi", - llvm::cl::desc("enable objective-c's nonfragile abi")); - - -static llvm::cl::opt<bool> -EmitAllDecls("femit-all-decls", - llvm::cl::desc("Emit all declarations, even if unused")); - -static llvm::cl::opt<bool> -Exceptions("fexceptions", - llvm::cl::desc("Enable support for exception handling")); - -static llvm::cl::opt<bool> -Rtti("frtti", llvm::cl::init(true), - llvm::cl::desc("Enable generation of rtti information")); - -static llvm::cl::opt<bool> -GNURuntime("fgnu-runtime", - llvm::cl::desc("Generate output compatible with the standard GNU " - "Objective-C runtime")); - -static llvm::cl::opt<bool> -NeXTRuntime("fnext-runtime", - llvm::cl::desc("Generate output compatible with the NeXT " - "runtime")); - -static llvm::cl::opt<bool> -CharIsSigned("fsigned-char", - llvm::cl::desc("Force char to be a signed/unsigned type")); - - -static llvm::cl::opt<bool> -Trigraphs("trigraphs", llvm::cl::desc("Process trigraph sequences")); - -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> -DollarsInIdents("fdollars-in-identifiers", - llvm::cl::desc("Allow '$' in identifiers")); - - -static llvm::cl::opt<bool> -OptSize("Os", llvm::cl::desc("Optimize for size")); - -static llvm::cl::opt<bool> -DisableLLVMOptimizations("disable-llvm-optzns", - llvm::cl::desc("Don't run LLVM optimization passes")); - -static llvm::cl::opt<bool> -NoCommon("fno-common", - llvm::cl::desc("Compile common globals like normal definitions"), - llvm::cl::ValueDisallowed); - -static llvm::cl::opt<std::string> -MainFileName("main-file-name", - llvm::cl::desc("Main file name to use for debug info")); - -// FIXME: Also add an "-fno-access-control" option. -static llvm::cl::opt<bool> -AccessControl("faccess-control", - llvm::cl::desc("Enable C++ access control")); - -static llvm::cl::opt<bool> -NoElideConstructors("fno-elide-constructors", - llvm::cl::desc("Disable C++ copy constructor elision")); - -static llvm::cl::opt<bool> -NoMergeConstants("fno-merge-all-constants", - llvm::cl::desc("Disallow merging of constants.")); - -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)")); - - -// 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<unsigned> -PICLevel("pic-level", llvm::cl::desc("Value for __PIC__")); - -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 void InitializeLanguageStandard(LangOptions &Options, LangKind LK, - TargetInfo *Target, - const llvm::StringMap<bool> &Features) { - // Allow the target to set the default the langauge options as it sees fit. - Target->getDefaultLangOptions(Options); - - // Pass the map of target features to the target for validation and - // processing. - Target->HandleTargetFeatures(Features); - - if (LangStd == lang_unspecified) { - // Based on the base language, pick one. - switch (LK) { - case langkind_ast: assert(0 && "Invalid call for AST inputs"); - case lang_unspecified: assert(0 && "Unknown base language"); - case langkind_ocl: - LangStd = lang_c99; - break; - case langkind_c: - case langkind_asm_cpp: - case langkind_c_cpp: - case langkind_objc: - case langkind_objc_cpp: - LangStd = lang_gnu99; - break; - case langkind_cxx: - case langkind_cxx_cpp: - case langkind_objcxx: - case langkind_objcxx_cpp: - 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 = LK != langkind_asm_cpp; - 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 (!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; - - // -Os implies -O2 - if (OptSize || OptLevel) - Options.Optimize = 1; - - assert(PICLevel <= 2 && "Invalid value for -pic-level"); - Options.PICLevel = PICLevel; - - Options.GNUInline = !Options.C99; - // FIXME: This is affected by other options (-fno-inline). - Options.NoInline = !OptSize && !OptLevel; - - 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()); -} - -//===----------------------------------------------------------------------===// -// SourceManager initialization. -//===----------------------------------------------------------------------===// - -static bool InitializeSourceManager(Preprocessor &PP, - const std::string &InFile) { - // Figure out where to get and map in the main file. - SourceManager &SourceMgr = PP.getSourceManager(); - FileManager &FileMgr = PP.getFileManager(); - - if (EmptyInputOnly) { - const char *EmptyStr = ""; - llvm::MemoryBuffer *SB = - llvm::MemoryBuffer::getMemBuffer(EmptyStr, EmptyStr, "<empty input>"); - SourceMgr.createMainFileIDForMemBuffer(SB); - } else if (InFile != "-") { - const FileEntry *File = FileMgr.getFile(InFile); - if (File) SourceMgr.createMainFileID(File, SourceLocation()); - if (SourceMgr.getMainFileID().isInvalid()) { - PP.getDiagnostics().Report(FullSourceLoc(), diag::err_fe_error_reading) - << InFile.c_str(); - return true; - } - } else { - llvm::MemoryBuffer *SB = llvm::MemoryBuffer::getSTDIN(); - - // If stdin was empty, SB is null. Cons up an empty memory - // buffer now. - if (!SB) { - const char *EmptyStr = ""; - SB = llvm::MemoryBuffer::getMemBuffer(EmptyStr, EmptyStr, "<stdin>"); - } - - SourceMgr.createMainFileIDForMemBuffer(SB); - if (SourceMgr.getMainFileID().isInvalid()) { - PP.getDiagnostics().Report(FullSourceLoc(), - diag::err_fe_error_reading_stdin); - return true; - } - } - - return false; -} - - -//===----------------------------------------------------------------------===// -// Preprocessor Initialization -//===----------------------------------------------------------------------===// - -static llvm::cl::opt<bool> -UndefMacros("undef", llvm::cl::value_desc("macro"), - llvm::cl::desc("undef all system defines")); - -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> -U_macros("U", llvm::cl::value_desc("macro"), llvm::cl::Prefix, - llvm::cl::desc("Undefine 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<bool> -RelocatablePCH("relocatable-pch", - llvm::cl::desc("Whether to build a relocatable precompiled " - "header")); - -//===----------------------------------------------------------------------===// -// Preprocessor include path information. -//===----------------------------------------------------------------------===// - -// This tool exports a large number of command line options to control how the -// preprocessor searches for header files. At root, however, the Preprocessor -// object takes a very simple interface: a list of directories to search for -// -// FIXME: -nostdinc++ -// FIXME: -imultilib -// - -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 /)")); - -// Finally, implement the code that groks the options above. - -// Add the clang headers, which are relative to the clang binary. -void AddClangIncludePaths(const char *Argv0, InitHeaderSearch *Init) { - llvm::sys::Path MainExecutablePath = - llvm::sys::Path::GetMainExecutable(Argv0, - (void*)(intptr_t)AddClangIncludePaths); - if (MainExecutablePath.isEmpty()) - return; - - MainExecutablePath.eraseComponent(); // Remove /clang from foo/bin/clang - MainExecutablePath.eraseComponent(); // Remove /bin from foo/bin - - // Get foo/lib/clang/<version>/include - MainExecutablePath.appendComponent("lib"); - MainExecutablePath.appendComponent("clang"); - MainExecutablePath.appendComponent(CLANG_VERSION_STRING); - MainExecutablePath.appendComponent("include"); - - // We pass true to ignore sysroot so that we *always* look for clang headers - // relative to our executable, never relative to -isysroot. - Init->AddPath(MainExecutablePath.c_str(), InitHeaderSearch::System, - false, false, false, true /*ignore sysroot*/); -} - -/// InitializeIncludePaths - Process the -I options and set them in the -/// HeaderSearch object. -void InitializeIncludePaths(const char *Argv0, HeaderSearch &Headers, - FileManager &FM, const LangOptions &Lang, - llvm::Triple &triple) { - InitHeaderSearch Init(Headers, Verbose, isysroot); - - // 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)) { - Init.AddPath(I_dirs[Iidx], InitHeaderSearch::Angled, false, true, false); - ++Iidx; - } else { - Init.AddPath(F_dirs[Fidx], InitHeaderSearch::Angled, false, true, true); - ++Fidx; - } - } - - // Consume what's left from whatever list was longer. - for (; Iidx != I_dirs.size(); ++Iidx) - Init.AddPath(I_dirs[Iidx], InitHeaderSearch::Angled, false, true, false); - for (; Fidx != F_dirs.size(); ++Fidx) - Init.AddPath(F_dirs[Fidx], InitHeaderSearch::Angled, false, true, true); - - // Handle -idirafter... options. - for (unsigned i = 0, e = idirafter_dirs.size(); i != e; ++i) - Init.AddPath(idirafter_dirs[i], InitHeaderSearch::After, - false, true, false); - - // Handle -iquote... options. - for (unsigned i = 0, e = iquote_dirs.size(); i != e; ++i) - Init.AddPath(iquote_dirs[i], InitHeaderSearch::Quoted, false, true, false); - - // Handle -isystem... options. - for (unsigned i = 0, e = isystem_dirs.size(); i != e; ++i) - Init.AddPath(isystem_dirs[i], InitHeaderSearch::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))) { - Init.AddPath(Prefix+iwithprefix_vals[iwithprefix_idx], - InitHeaderSearch::System, false, false, false); - ++iwithprefix_idx; - iwithprefix_done = iwithprefix_idx == iwithprefix_vals.size(); - } else { - Init.AddPath(Prefix+iwithprefixbefore_vals[iwithprefixbefore_idx], - InitHeaderSearch::Angled, false, false, false); - ++iwithprefixbefore_idx; - iwithprefixbefore_done = - iwithprefixbefore_idx == iwithprefixbefore_vals.size(); - } - } - } - - Init.AddDefaultEnvVarPaths(Lang); - - if (!nobuiltininc) - AddClangIncludePaths(Argv0, &Init); - - if (!nostdinc) - Init.AddDefaultSystemIncludePaths(Lang, triple); - - // Now that we have collected all of the include paths, merge them all - // together and tell the preprocessor about them. - - Init.Realize(); -} - -void InitializePreprocessorInitOptions(PreprocessorInitOptions &InitOpts) { - // Use predefines? - InitOpts.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))) - InitOpts.addMacroDef(D_macros[d++]); - else - InitOpts.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) - InitOpts.addMacroInclude(ImplicitMacroIncludes[i]); - - if (!ImplicitIncludePTH.empty() || !ImplicitIncludes.empty() || - (!ImplicitIncludePCH.empty() && ProgAction == PrintPreprocessedInput)) { - // We want to add these paths to the predefines buffer in order, make a - // temporary vector to sort by their occurrence. - llvm::SmallVector<std::pair<unsigned, std::string*>, 8> OrderedPaths; - - if (!ImplicitIncludePTH.empty()) - OrderedPaths.push_back(std::make_pair(ImplicitIncludePTH.getPosition(), - &ImplicitIncludePTH)); - if (!ImplicitIncludePCH.empty() && ProgAction == PrintPreprocessedInput) - OrderedPaths.push_back(std::make_pair(ImplicitIncludePCH.getPosition(), - &ImplicitIncludePCH)); - 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()); - - - // Now that they are ordered by position, add to the predefines buffer. - for (unsigned i = 0, e = OrderedPaths.size(); i != e; ++i) { - std::string *Ptr = OrderedPaths[i].second; - if (!ImplicitIncludes.empty() && - Ptr >= &ImplicitIncludes[0] && - Ptr <= &ImplicitIncludes[ImplicitIncludes.size()-1]) { - InitOpts.addInclude(*Ptr, false); - } else if (Ptr == &ImplicitIncludePTH) { - InitOpts.addInclude(*Ptr, true); - } else { - // We end up here when we're producing preprocessed output and - // we loaded a PCH file. In this case, just include the header - // file that was used to build the precompiled header. - assert(Ptr == &ImplicitIncludePCH); - std::string OriginalFile = PCHReader::getOriginalSourceFile(*Ptr); - if (!OriginalFile.empty()) { - InitOpts.addInclude(OriginalFile, false); - ImplicitIncludePCH.clear(); - } - } - } - } -} - -//===----------------------------------------------------------------------===// -// Preprocessor construction +// Main driver //===----------------------------------------------------------------------===// -static Preprocessor * -CreatePreprocessor(Diagnostic &Diags,const LangOptions &LangInfo, - TargetInfo &Target, SourceManager &SourceMgr, - HeaderSearch &HeaderInfo) { - PTHManager *PTHMgr = 0; - if (!TokenCache.empty() && !ImplicitIncludePTH.empty()) { - fprintf(stderr, "error: cannot use both -token-cache and -include-pth " - "options\n"); - exit(1); - } - - // Use PTH? - if (!TokenCache.empty() || !ImplicitIncludePTH.empty()) { - const std::string& x = TokenCache.empty() ? ImplicitIncludePTH:TokenCache; - PTHMgr = PTHManager::Create(x, &Diags, - TokenCache.empty() ? Diagnostic::Error - : Diagnostic::Warning); - } - - if (Diags.hasErrorOccurred()) - exit(1); +std::string GetBuiltinIncludePath(const char *Argv0) { + llvm::sys::Path P = + llvm::sys::Path::GetMainExecutable(Argv0, + (void*)(intptr_t) GetBuiltinIncludePath); - // Create the Preprocessor. - Preprocessor *PP = new Preprocessor(Diags, LangInfo, Target, - SourceMgr, HeaderInfo, PTHMgr); + if (!P.isEmpty()) { + P.eraseComponent(); // Remove /clang from foo/bin/clang + P.eraseComponent(); // Remove /bin from foo/bin - // Note that this is different then passing PTHMgr to Preprocessor's ctor. - // That argument is used as the IdentifierInfoLookup argument to - // IdentifierTable's ctor. - if (PTHMgr) { - PTHMgr->setPreprocessor(PP); - PP->setPTHManager(PTHMgr); + // Get foo/lib/clang/<version>/include + P.appendComponent("lib"); + P.appendComponent("clang"); + P.appendComponent(CLANG_VERSION_STRING); + P.appendComponent("include"); } - PreprocessorInitOptions InitOpts; - InitializePreprocessorInitOptions(InitOpts); - InitializePreprocessor(*PP, InitOpts); - - return PP; + return P.str(); } -//===----------------------------------------------------------------------===// -// Basic Parser driver -//===----------------------------------------------------------------------===// +static void LLVMErrorHandler(void *UserData, const std::string &Message) { + Diagnostic &Diags = *static_cast<Diagnostic*>(UserData); -static void ParseFile(Preprocessor &PP, MinimalAction *PA) { - Parser P(PP, *PA); - PP.EnterMainSourceFile(); + Diags.Report(diag::err_fe_error_backend) << Message; - // Parsing the specified input file. - P.ParseTranslationUnit(); - delete PA; + // We cannot recover from llvm errors. + exit(1); } -//===----------------------------------------------------------------------===// -// Code generation options -//===----------------------------------------------------------------------===// - -static llvm::cl::opt<bool> -GenerateDebugInfo("g", - llvm::cl::desc("Generate source level debug information")); - -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")); - - -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> -NoImplicitFloat("no-implicit-float", - llvm::cl::desc("Don't generate implicit floating point instructions (x86-only)"), - llvm::cl::init(false)); - -/// ComputeTargetFeatures - Recompute the target feature list to only -/// be the list of things that are enabled, based on the target cpu -/// and feature list. -static void ComputeFeatureMap(TargetInfo *Target, - llvm::StringMap<bool> &Features) { - assert(Features.empty() && "invalid map"); - - // Initialize the feature map based on the target. - Target->getDefaultFeatures(TargetCPU, Features); +/// ClangFrontendTimer - The front-end activities should charge time to it with +/// TimeRegion. The -ftime-report option controls whether this will do +/// anything. +llvm::Timer *ClangFrontendTimer = 0; - // 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(); +static FrontendAction *CreateFrontendAction(CompilerInstance &CI) { + using namespace clang::frontend; - // 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); - } - if (!Target->setFeatureEnabled(Features, Name + 1, (Name[0] == '+'))) { - fprintf(stderr, "error: clang-cc: invalid target feature name: %s\n", - Name + 1); + switch (CI.getFrontendOpts().ProgramAction) { + default: + llvm::llvm_unreachable("Invalid program action!"); + + case ASTDump: return new ASTDumpAction(); + case ASTPrint: return new ASTPrintAction(); + case ASTPrintXML: return new ASTPrintXMLAction(); + case ASTView: return new ASTViewAction(); + case DumpRawTokens: return new DumpRawTokensAction(); + case DumpRecordLayouts: return new DumpRecordAction(); + case DumpTokens: return new DumpTokensAction(); + case EmitAssembly: return new EmitAssemblyAction(); + case EmitBC: return new EmitBCAction(); + case EmitHTML: return new HTMLPrintAction(); + case EmitLLVM: return new EmitLLVMAction(); + case EmitLLVMOnly: return new EmitLLVMOnlyAction(); + case FixIt: return new FixItAction(); + case GeneratePCH: return new GeneratePCHAction(); + case GeneratePTH: return new GeneratePTHAction(); + case InheritanceView: return new InheritanceViewAction(); + case ParseNoop: return new ParseOnlyAction(); + case ParsePrintCallbacks: return new PrintParseAction(); + case ParseSyntaxOnly: return new SyntaxOnlyAction(); + + case PluginAction: { + if (CI.getFrontendOpts().ActionName == "help") { + llvm::errs() << "clang-cc plugins:\n"; + for (FrontendPluginRegistry::iterator it = + FrontendPluginRegistry::begin(), + ie = FrontendPluginRegistry::end(); + it != ie; ++it) + llvm::errs() << " " << it->getName() << " - " << it->getDesc() << "\n"; exit(1); } - } -} - -static void InitializeCompileOptions(CompileOptions &Opts, - const LangOptions &LangOpts, - const llvm::StringMap<bool> &Features) { - Opts.OptimizeSize = OptSize; - Opts.DebugInfo = GenerateDebugInfo; - if (DisableLLVMOptimizations) { - Opts.OptimizationLevel = 0; - Opts.Inlining = CompileOptions::NoInlining; - } else { - if (OptSize) { - // -Os implies -O2 - Opts.OptimizationLevel = 2; - } else { - Opts.OptimizationLevel = OptLevel; + for (FrontendPluginRegistry::iterator it = + FrontendPluginRegistry::begin(), ie = FrontendPluginRegistry::end(); + it != ie; ++it) { + if (it->getName() == CI.getFrontendOpts().ActionName) + return it->instantiate(); } - // We must always run at least the always inlining pass. - if (Opts.OptimizationLevel > 1) - Opts.Inlining = CompileOptions::NormalInlining; - else - Opts.Inlining = CompileOptions::OnlyAlwaysInlining; - } - - // FIXME: There are llvm-gcc options to control these selectively. - Opts.UnrollLoops = (Opts.OptimizationLevel > 1 && !OptSize); - Opts.SimplifyLibCalls = !LangOpts.NoBuiltin; - -#ifdef NDEBUG - Opts.VerifyModule = 0; -#endif - - Opts.CPU = TargetCPU; - Opts.Features.clear(); - for (llvm::StringMap<bool>::const_iterator it = Features.begin(), - ie = Features.end(); it != ie; ++it) { - // FIXME: If we are completely confident that we have the right - // set, we only need to pass the minuses. - std::string Name(it->second ? "+" : "-"); - Name += it->first(); - Opts.Features.push_back(Name); - } - - Opts.NoCommon = NoCommon | LangOpts.CPlusPlus; - - // Handle -ftime-report. - Opts.TimePasses = TimeReport; - - Opts.DisableRedZone = DisableRedZone; - Opts.NoImplicitFloat = NoImplicitFloat; - - Opts.MergeAllConstants = !NoMergeConstants; -} - -//===----------------------------------------------------------------------===// -// Fix-It Options -//===----------------------------------------------------------------------===// -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")); - -//===----------------------------------------------------------------------===// -// ObjC Rewriter Options -//===----------------------------------------------------------------------===// -static llvm::cl::opt<bool> -SilenceRewriteMacroWarning("Wno-rewrite-macros", llvm::cl::init(false), - llvm::cl::desc("Silence ObjC rewriting warnings")); - -//===----------------------------------------------------------------------===// -// Warning Options -//===----------------------------------------------------------------------===// - -// 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> OptPedantic("pedantic"); -static llvm::cl::opt<bool> OptPedanticErrors("pedantic-errors"); -static llvm::cl::opt<bool> OptNoWarnings("w"); - -//===----------------------------------------------------------------------===// -// Preprocessing (-E mode) Options -//===----------------------------------------------------------------------===// -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")); - -//===----------------------------------------------------------------------===// -// Dependency file options -//===----------------------------------------------------------------------===// -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")); - -// FIXME: Implement feature -static llvm::cl::opt<bool> -PhonyDependencyTarget("MP", - llvm::cl::desc("Create phony target for each dependency " - "(other than main file)")); - -//===----------------------------------------------------------------------===// -// Analysis options -//===----------------------------------------------------------------------===// - -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> -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")); - -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> -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> -EagerlyAssume("analyzer-eagerly-assume", - llvm::cl::init(false), - llvm::cl::desc("Eagerly assume the truth/falseness of some " - "symbolic constraints.")); - -static llvm::cl::opt<std::string> -AnalyzeSpecificFunction("analyze-function", - llvm::cl::desc("Run analysis on specific function")); - -static llvm::cl::opt<bool> -TrimGraph("trim-egraph", - llvm::cl::desc("Only show error-related paths in the analysis graph")); - -static AnalyzerOptions ReadAnalyzerOptions() { - AnalyzerOptions Opts; - 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.TrimGraph = TrimGraph; - return Opts; -} - -//===----------------------------------------------------------------------===// -// -dump-build-information Stuff -//===----------------------------------------------------------------------===// - -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::raw_ostream *BuildLogFile = 0; - -/// LoggingDiagnosticClient - This is a simple diagnostic client that forwards -/// all diagnostics to both BuildLogFile and a chained DiagnosticClient. -namespace { -class LoggingDiagnosticClient : public DiagnosticClient { - llvm::OwningPtr<DiagnosticClient> Chain1; - llvm::OwningPtr<DiagnosticClient> Chain2; -public: - - LoggingDiagnosticClient(DiagnosticClient *Normal) { - // Output diags both where requested... - Chain1.reset(Normal); - // .. and to our log file. - Chain2.reset(new TextDiagnosticPrinter(*BuildLogFile, DiagOpts)); - } - - virtual void BeginSourceFile(const LangOptions &LO) { - Chain1->BeginSourceFile(LO); - Chain2->BeginSourceFile(LO); - } - - virtual void EndSourceFile() { - Chain1->EndSourceFile(); - Chain2->EndSourceFile(); - } - - virtual bool IncludeInDiagnosticCounts() const { - return Chain1->IncludeInDiagnosticCounts(); - } - - virtual void HandleDiagnostic(Diagnostic::Level DiagLevel, - const DiagnosticInfo &Info) { - Chain1->HandleDiagnostic(DiagLevel, Info); - Chain2->HandleDiagnostic(DiagLevel, Info); - } -}; -} // end anonymous namespace. - -static void SetUpBuildDumpLog(unsigned argc, char **argv, - llvm::OwningPtr<DiagnosticClient> &DiagClient) { - - std::string ErrorInfo; - BuildLogFile = new llvm::raw_fd_ostream(DumpBuildInformation.c_str(), - ErrorInfo); - - if (!ErrorInfo.empty()) { - llvm::errs() << "error opening -dump-build-information file '" - << DumpBuildInformation << "', option ignored!\n"; - delete BuildLogFile; - BuildLogFile = 0; - DumpBuildInformation = ""; - return; - } - - (*BuildLogFile) << "clang-cc command line arguments: "; - for (unsigned i = 0; i != argc; ++i) - (*BuildLogFile) << argv[i] << ' '; - (*BuildLogFile) << '\n'; - - // LoggingDiagnosticClient - Insert a new logging diagnostic client in between - // the diagnostic producers and the normal receiver. - DiagClient.reset(new LoggingDiagnosticClient(DiagClient.take())); -} - - - -//===----------------------------------------------------------------------===// -// Main driver -//===----------------------------------------------------------------------===// - -static llvm::raw_ostream *ComputeOutFile(const std::string &InFile, - const char *Extension, - bool Binary, - llvm::sys::Path& OutPath) { - llvm::raw_ostream *Ret; - std::string OutFile; - if (!OutputFile.empty()) - OutFile = OutputFile; - else if (InFile == "-") { - OutFile = "-"; - } else if (Extension) { - llvm::sys::Path Path(InFile); - Path.eraseSuffix(); - Path.appendSuffix(Extension); - OutFile = Path.str(); - } else { - OutFile = "-"; - } - - std::string Error; - Ret = new llvm::raw_fd_ostream(OutFile.c_str(), Error, - (Binary ? llvm::raw_fd_ostream::F_Binary : 0)); - if (!Error.empty()) { - // FIXME: Don't fail this way. - llvm::errs() << "ERROR: " << Error << "\n"; - ::exit(1); - } - - if (OutFile != "-") - OutPath = OutFile; - - return Ret; -} - -static ASTConsumer *CreateConsumerAction(Preprocessor &PP, - const std::string &InFile, - ProgActions PA, - llvm::OwningPtr<llvm::raw_ostream> &OS, - llvm::sys::Path &OutPath, - const llvm::StringMap<bool> &Features, - llvm::LLVMContext& Context) { - switch (PA) { - default: + CI.getDiagnostics().Report(diag::err_fe_invalid_plugin_name) + << CI.getFrontendOpts().ActionName; return 0; - - case ASTPrint: - OS.reset(ComputeOutFile(InFile, 0, false, OutPath)); - return CreateASTPrinter(OS.get()); - - case ASTPrintXML: - OS.reset(ComputeOutFile(InFile, "xml", false, OutPath)); - return CreateASTPrinterXML(OS.get()); - - case ASTDump: - return CreateASTDumper(); - - case ASTView: - return CreateASTViewer(); - - case PrintDeclContext: - return CreateDeclContextPrinter(); - - case DumpRecordLayouts: - return CreateRecordLayoutDumper(); - - case InheritanceView: - return CreateInheritanceViewer(InheritanceViewCls); - - case EmitAssembly: - case EmitLLVM: - case EmitBC: - case EmitLLVMOnly: { - BackendAction Act; - if (ProgAction == EmitAssembly) { - Act = Backend_EmitAssembly; - OS.reset(ComputeOutFile(InFile, "s", true, OutPath)); - } else if (ProgAction == EmitLLVM) { - Act = Backend_EmitLL; - OS.reset(ComputeOutFile(InFile, "ll", true, OutPath)); - } else if (ProgAction == EmitLLVMOnly) { - Act = Backend_EmitNothing; - } else { - Act = Backend_EmitBC; - OS.reset(ComputeOutFile(InFile, "bc", true, OutPath)); - } - - CompileOptions Opts; - InitializeCompileOptions(Opts, PP.getLangOptions(), Features); - return CreateBackendConsumer(Act, PP.getDiagnostics(), PP.getLangOptions(), - Opts, InFile, OS.get(), Context); } - case RewriteObjC: - OS.reset(ComputeOutFile(InFile, "cpp", true, OutPath)); - return CreateObjCRewriter(InFile, OS.get(), PP.getDiagnostics(), - PP.getLangOptions(), SilenceRewriteMacroWarning); - - case RewriteBlocks: - return CreateBlockRewriter(InFile, PP.getDiagnostics(), - PP.getLangOptions()); + case PrintDeclContext: return new DeclContextPrintAction(); + case PrintPreprocessedInput: return new PrintPreprocessedAction(); + case RewriteBlocks: return new RewriteBlocksAction(); + case RewriteMacros: return new RewriteMacrosAction(); + case RewriteObjC: return new RewriteObjCAction(); + case RewriteTest: return new RewriteTestAction(); + case RunAnalysis: return new AnalysisAction(); + case RunPreprocessorOnly: return new PreprocessOnlyAction(); } } -/// ProcessInputFile - Process a single input file with the specified state. -/// -static void ProcessInputFile(Preprocessor &PP, const std::string &InFile, - ProgActions PA, - const llvm::StringMap<bool> &Features, - llvm::LLVMContext& Context) { - llvm::OwningPtr<llvm::raw_ostream> OS; - llvm::OwningPtr<ASTConsumer> Consumer; - bool ClearSourceMgr = false; - FixItRewriter *FixItRewrite = 0; - bool CompleteTranslationUnit = true; - llvm::sys::Path OutPath; - - switch (PA) { - default: - Consumer.reset(CreateConsumerAction(PP, InFile, PA, OS, OutPath, - Features, Context)); - - if (!Consumer.get()) { - PP.getDiagnostics().Report(FullSourceLoc(), - diag::err_fe_invalid_ast_action); - return; - } - - break;; - - case EmitHTML: - OS.reset(ComputeOutFile(InFile, 0, true, OutPath)); - Consumer.reset(CreateHTMLPrinter(OS.get(), PP)); - break; - - case RunAnalysis: - Consumer.reset(CreateAnalysisConsumer(PP, OutputFile, - ReadAnalyzerOptions())); - break; - - case GeneratePCH: - if (RelocatablePCH.getValue() && !isysroot.getNumOccurrences()) { - PP.Diag(SourceLocation(), diag::err_relocatable_without_without_isysroot); - RelocatablePCH.setValue(false); - } - - OS.reset(ComputeOutFile(InFile, 0, true, OutPath)); - if (RelocatablePCH.getValue()) - Consumer.reset(CreatePCHGenerator(PP, OS.get(), isysroot.c_str())); - else - Consumer.reset(CreatePCHGenerator(PP, OS.get())); - CompleteTranslationUnit = false; - break; +static TargetInfo * +ConstructCompilerInvocation(CompilerInvocation &Opts, Diagnostic &Diags, + const char *Argv0, bool &IsAST) { + // Initialize target options. + InitializeTargetOptions(Opts.getTargetOpts()); - case DumpRawTokens: { - llvm::TimeRegion Timer(ClangFrontendTimer); - SourceManager &SM = PP.getSourceManager(); - // Start lexing the specified input file. - Lexer RawLex(SM.getMainFileID(), SM, PP.getLangOptions()); - RawLex.SetKeepWhitespaceMode(true); - - Token RawTok; - RawLex.LexFromRawLexer(RawTok); - while (RawTok.isNot(tok::eof)) { - PP.DumpToken(RawTok, true); - fprintf(stderr, "\n"); - RawLex.LexFromRawLexer(RawTok); - } - ClearSourceMgr = true; - break; - } - case DumpTokens: { // Token dump mode. - llvm::TimeRegion Timer(ClangFrontendTimer); - Token Tok; - // Start preprocessing the specified input file. - PP.EnterMainSourceFile(); - do { - PP.Lex(Tok); - PP.DumpToken(Tok, true); - fprintf(stderr, "\n"); - } while (Tok.isNot(tok::eof)); - ClearSourceMgr = true; - break; - } - case RunPreprocessorOnly: - break; - - case GeneratePTH: { - llvm::TimeRegion Timer(ClangFrontendTimer); - if (OutputFile.empty() || OutputFile == "-") { - // FIXME: Don't fail this way. - // FIXME: Verify that we can actually seek in the given file. - llvm::errs() << "ERROR: PTH requires an seekable file for output!\n"; - ::exit(1); - } - OS.reset(ComputeOutFile(InFile, 0, true, OutPath)); - CacheTokens(PP, static_cast<llvm::raw_fd_ostream*>(OS.get())); - ClearSourceMgr = true; - break; - } - - case PrintPreprocessedInput: - OS.reset(ComputeOutFile(InFile, 0, true, OutPath)); - break; - - case ParseNoop: - break; - - case ParsePrintCallbacks: { - llvm::TimeRegion Timer(ClangFrontendTimer); - OS.reset(ComputeOutFile(InFile, 0, true, OutPath)); - ParseFile(PP, CreatePrintParserActionsAction(PP, OS.get())); - ClearSourceMgr = true; - break; - } - - case ParseSyntaxOnly: { // -fsyntax-only - llvm::TimeRegion Timer(ClangFrontendTimer); - Consumer.reset(new ASTConsumer()); - break; - } - - case RewriteMacros: - OS.reset(ComputeOutFile(InFile, 0, true, OutPath)); - RewriteMacrosInInput(PP, OS.get()); - ClearSourceMgr = true; - break; - - case RewriteTest: - OS.reset(ComputeOutFile(InFile, 0, true, OutPath)); - DoRewriteTest(PP, OS.get()); - ClearSourceMgr = true; - break; - - case FixIt: - llvm::TimeRegion Timer(ClangFrontendTimer); - Consumer.reset(new ASTConsumer()); - FixItRewrite = new FixItRewriter(PP.getDiagnostics(), - PP.getSourceManager(), - PP.getLangOptions()); - break; - } - - if (FixItAtLocations.size() > 0) { - // Even without the "-fixit" flag, with may have some specific - // locations where the user has requested fixes. Process those - // locations now. - if (!FixItRewrite) - FixItRewrite = new FixItRewriter(PP.getDiagnostics(), - PP.getSourceManager(), - PP.getLangOptions()); - - bool AddedFixitLocation = false; - for (unsigned Idx = 0, Last = FixItAtLocations.size(); - Idx != Last; ++Idx) { - RequestedSourceLocation Requested; - if (ResolveParsedLocation(FixItAtLocations[Idx], - PP.getFileManager(), Requested)) { - fprintf(stderr, "FIX-IT could not find file \"%s\"\n", - FixItAtLocations[Idx].FileName.c_str()); - } else { - FixItRewrite->addFixItLocation(Requested); - AddedFixitLocation = true; - } - } - - if (!AddedFixitLocation) { - // All of the fix-it locations were bad. Don't fix anything. - delete FixItRewrite; - FixItRewrite = 0; - } - } - - llvm::OwningPtr<ASTContext> ContextOwner; - if (Consumer) - ContextOwner.reset(new ASTContext(PP.getLangOptions(), - PP.getSourceManager(), - PP.getTargetInfo(), - PP.getIdentifierTable(), - PP.getSelectorTable(), - PP.getBuiltinInfo(), - /* FreeMemory = */ !DisableFree, - /* size_reserve = */0)); - - llvm::OwningPtr<PCHReader> Reader; - llvm::OwningPtr<ExternalASTSource> Source; - - if (!ImplicitIncludePCH.empty()) { - // If the user specified -isysroot, it will be used for relocatable PCH - // files. - const char *isysrootPCH = 0; - if (isysroot.getNumOccurrences() != 0) - isysrootPCH = isysroot.c_str(); - - Reader.reset(new PCHReader(PP, ContextOwner.get(), isysrootPCH)); - - // The user has asked us to include a precompiled header. Load - // the precompiled header into the AST context. - switch (Reader->ReadPCH(ImplicitIncludePCH)) { - case PCHReader::Success: { - // Set the predefines buffer as suggested by the PCH - // reader. Typically, the predefines buffer will be empty. - PP.setPredefines(Reader->getSuggestedPredefines()); - - // Attach the PCH reader to the AST context as an external AST - // source, so that declarations will be deserialized from the - // PCH file as needed. - if (ContextOwner) { - Source.reset(Reader.take()); - ContextOwner->setExternalSource(Source); - } - break; - } - - case PCHReader::Failure: - // Unrecoverable failure: don't even try to process the input - // file. - return; - - case PCHReader::IgnorePCH: - // No suitable PCH file could be found. Return an error. - return; - -#if 0 - // FIXME: We can recover from failed attempts to load PCH - // files. This code will do so, if we ever want to enable it. - - // We delayed the initialization of builtins in the hope of - // loading the PCH file. Since the PCH file could not be - // loaded, initialize builtins now. - if (ContextOwner) - ContextOwner->InitializeBuiltins(PP.getIdentifierTable()); -#endif - } - - // Finish preprocessor initialization. We do this now (rather - // than earlier) because this initialization creates new source - // location entries in the source manager, which must come after - // the source location entries for the PCH file. - if (InitializeSourceManager(PP, InFile)) - return; - } - - // If we have an ASTConsumer, run the parser with it. - if (Consumer) { - CodeCompleteConsumer *(*CreateCodeCompleter)(Sema &, void *) = 0; - void *CreateCodeCompleterData = 0; + // Get information about the target being compiled for. + llvm::OwningPtr<TargetInfo> Target( + TargetInfo::CreateTargetInfo(Diags, Opts.getTargetOpts())); + if (!Target) + return 0; - if (!CodeCompletionAt.FileName.empty()) { - // Tell the source manager to chop off the given file at a specific - // line and column. - if (const FileEntry *Entry - = PP.getFileManager().getFile(CodeCompletionAt.FileName)) { - // Truncate the named file at the given line/column. - PP.getSourceManager().truncateFileAt(Entry, CodeCompletionAt.Line, - CodeCompletionAt.Column); + // Initialize frontend options. + InitializeFrontendOptions(Opts.getFrontendOpts()); - // Set up the creation routine for code-completion. - CreateCodeCompleter = BuildPrintingCodeCompleter; - } else { - PP.getDiagnostics().Report(FullSourceLoc(), - diag::err_fe_invalid_code_complete_file) - << CodeCompletionAt.FileName; - } + // Determine the input language, we currently require all files to match. + FrontendOptions::InputKind IK = Opts.getFrontendOpts().Inputs[0].first; + for (unsigned i = 1, e = Opts.getFrontendOpts().Inputs.size(); i != e; ++i) { + if (Opts.getFrontendOpts().Inputs[i].first != IK) { + llvm::errs() << "error: cannot have multiple input files of distinct " + << "language kinds without -x\n"; + return 0; } - - ParseAST(PP, Consumer.get(), *ContextOwner.get(), Stats, - CompleteTranslationUnit, - CreateCodeCompleter, CreateCodeCompleterData); } - // Perform post processing actions and actions which don't use a consumer. - switch (PA) { - default: break; - - case RunPreprocessorOnly: { // Just lex as fast as we can, no output. - llvm::TimeRegion Timer(ClangFrontendTimer); - Token Tok; - // Start parsing the specified input file. - PP.EnterMainSourceFile(); - do { - PP.Lex(Tok); - } while (Tok.isNot(tok::eof)); - ClearSourceMgr = true; - break; - } - - case ParseNoop: { - llvm::TimeRegion Timer(ClangFrontendTimer); - ParseFile(PP, new MinimalAction(PP)); - ClearSourceMgr = true; - break; - } - - case PrintPreprocessedInput: { - llvm::TimeRegion Timer(ClangFrontendTimer); - if (DumpMacros) - DoPrintMacros(PP, OS.get()); - else - DoPrintPreprocessedInput(PP, OS.get(), EnableCommentOutput, - EnableMacroCommentOutput, - DisableLineMarkers, DumpDefines); - ClearSourceMgr = true; - } - - } - - if (FixItRewrite) - FixItRewrite->WriteFixedFile(InFile, OutputFile); - - // Disable the consumer prior to the context, the consumer may perform actions - // in its destructor which require the context. - if (DisableFree) - Consumer.take(); - else - Consumer.reset(); - - // If in -disable-free mode, don't deallocate ASTContext. - if (DisableFree) - ContextOwner.take(); - else - ContextOwner.reset(); // Delete ASTContext - - if (VerifyDiagnostics) - if (CheckDiagnostics(PP)) - exit(1); - - if (Stats) { - fprintf(stderr, "\nSTATISTICS FOR '%s':\n", InFile.c_str()); - PP.PrintStats(); - PP.getIdentifierTable().PrintStats(); - PP.getHeaderSearchInfo().PrintStats(); - PP.getSourceManager().PrintStats(); - fprintf(stderr, "\n"); - } - - // For a multi-file compilation, some things are ok with nuking the source - // manager tables, other require stable fileid/macroid's across multiple - // files. - if (ClearSourceMgr) - PP.getSourceManager().clearIDTables(); - - // Always delete the output stream because we don't want to leak file - // handles. Also, we don't want to try to erase an open file. - OS.reset(); - - // If we had errors, try to erase the output file. - if (PP.getDiagnostics().getNumErrors() && !OutPath.isEmpty()) - OutPath.eraseFromDisk(); -} - -/// ProcessInputFile - Process a single AST input file with the specified state. -/// -static void ProcessASTInputFile(const std::string &InFile, ProgActions PA, - const llvm::StringMap<bool> &Features, - Diagnostic &Diags, FileManager &FileMgr, - llvm::LLVMContext& Context) { - std::string Error; - llvm::OwningPtr<ASTUnit> AST(ASTUnit::LoadFromPCHFile(InFile, &Error)); - if (!AST) { - Diags.Report(FullSourceLoc(), diag::err_fe_invalid_ast_file) << Error; - return; - } - - Preprocessor &PP = AST->getPreprocessor(); - - llvm::OwningPtr<llvm::raw_ostream> OS; - llvm::sys::Path OutPath; - llvm::OwningPtr<ASTConsumer> Consumer(CreateConsumerAction(PP, InFile, PA, OS, - OutPath, Features, - Context)); - - if (!Consumer.get()) { - Diags.Report(FullSourceLoc(), diag::err_fe_invalid_ast_action); - return; - } - - // Set the main file ID to an empty file. + // Initialize language options. // - // FIXME: We probably shouldn't need this, but for now this is the simplest - // way to reuse the logic in ParseAST. - const char *EmptyStr = ""; - llvm::MemoryBuffer *SB = - llvm::MemoryBuffer::getMemBuffer(EmptyStr, EmptyStr, "<dummy input>"); - AST->getSourceManager().createMainFileIDForMemBuffer(SB); - - // Stream the input AST to the consumer. - Diags.getClient()->BeginSourceFile(PP.getLangOptions()); - ParseAST(PP, Consumer.get(), AST->getASTContext(), Stats); - Diags.getClient()->EndSourceFile(); + // FIXME: These aren't used during operations on ASTs. Split onto a separate + // code path to make this obvious. + IsAST = (IK == FrontendOptions::IK_AST); + if (!IsAST) + InitializeLangOptions(Opts.getLangOpts(), IK, *Target); - // Release the consumer and the AST, in that order since the consumer may - // perform actions in its destructor which require the context. - if (DisableFree) { - Consumer.take(); - AST.take(); - } else { - Consumer.reset(); - AST.reset(); - } + // Initialize the static analyzer options. + InitializeAnalyzerOptions(Opts.getAnalyzerOpts()); - // Always delete the output stream because we don't want to leak file - // handles. Also, we don't want to try to erase an open file. - OS.reset(); + // Initialize the dependency output options (-M...). + InitializeDependencyOutputOptions(Opts.getDependencyOutputOpts()); - // If we had errors, try to erase the output file. - if (PP.getDiagnostics().getNumErrors() && !OutPath.isEmpty()) - OutPath.eraseFromDisk(); -} + // Initialize the header search options. + InitializeHeaderSearchOptions(Opts.getHeaderSearchOpts(), + GetBuiltinIncludePath(Argv0)); -static llvm::cl::list<std::string> -InputFilenames(llvm::cl::Positional, llvm::cl::desc("<input files>")); + // Initialize the other preprocessor options. + InitializePreprocessorOptions(Opts.getPreprocessorOpts()); -static void LLVMErrorHandler(void *UserData, const std::string &Message) { - Diagnostic &Diags = *static_cast<Diagnostic*>(UserData); + // Initialize the preprocessed output options. + InitializePreprocessorOutputOptions(Opts.getPreprocessorOutputOpts()); - Diags.Report(FullSourceLoc(), diag::err_fe_error_backend) << Message; + // Initialize backend options, which may also be used to key some language + // options. + InitializeCodeGenOptions(Opts.getCodeGenOpts(), Opts.getLangOpts(), + Opts.getFrontendOpts().ShowTimers); - // We cannot recover from llvm errors. - exit(1); + return Target.take(); } int main(int argc, char **argv) { llvm::sys::PrintStackTraceOnErrorSignal(); llvm::PrettyStackTraceProgram X(argc, argv); - llvm::LLVMContext &Context = llvm::getGlobalContext(); + CompilerInstance Clang(&llvm::getGlobalContext(), false); // Initialize targets first, so that --version shows registered targets. llvm::InitializeAllTargets(); @@ -2132,183 +208,102 @@ int main(int argc, char **argv) { llvm::cl::ParseCommandLineOptions(argc, argv, "LLVM 'Clang' Compiler: http://clang.llvm.org\n"); - if (TimeReport) - ClangFrontendTimer = new llvm::Timer("Clang front-end time"); - - if (Verbose) - llvm::errs() << "clang-cc version " CLANG_VERSION_STRING - << " based upon " << PACKAGE_STRING - << " hosted on " << llvm::sys::getHostTriple() << "\n"; - - // If no input was specified, read from stdin. - if (InputFilenames.empty()) - InputFilenames.push_back("-"); - - // Initialize the diagnostic options. - DiagOpts.ShowColumn = !NoShowColumn; - DiagOpts.ShowLocation = !NoShowLocation; - DiagOpts.ShowCarets = !NoCaretDiagnostics; - DiagOpts.ShowFixits = !NoDiagnosticsFixIt; - DiagOpts.ShowSourceRanges = PrintSourceRangeInfo; - DiagOpts.ShowOptionNames = PrintDiagnosticOption; - DiagOpts.ShowColors = PrintColorDiagnostic; - DiagOpts.MessageLength = MessageLength; - - // Create the diagnostic client for reporting errors or for - // implementing -verify. - llvm::OwningPtr<DiagnosticClient> DiagClient; - if (VerifyDiagnostics) { - // When checking diagnostics, just buffer them up. - DiagClient.reset(new TextDiagnosticBuffer()); - if (InputFilenames.size() != 1) { - fprintf(stderr, "-verify only works on single input files for now.\n"); - return 1; - } - } else { - DiagClient.reset(new TextDiagnosticPrinter(llvm::errs(), DiagOpts)); - } - - if (!DumpBuildInformation.empty()) - SetUpBuildDumpLog(argc, argv, DiagClient); - - // Configure our handling of diagnostics. - Diagnostic Diags(DiagClient.get()); - if (ProcessWarningOptions(Diags, OptWarnings, OptPedantic, OptPedanticErrors, - OptNoWarnings)) + // Construct the diagnostic engine first, so that we can build a diagnostic + // client to use for any errors during option handling. + InitializeDiagnosticOptions(Clang.getDiagnosticOpts()); + Clang.createDiagnostics(argc, argv); + if (!Clang.hasDiagnostics()) return 1; // Set an error handler, so that any LLVM backend diagnostics go through our // error handler. llvm::llvm_install_error_handler(LLVMErrorHandler, - static_cast<void*>(&Diags)); - - // Initialize base triple. If a -triple option has been specified, use - // that triple. Otherwise, default to the host triple. - llvm::Triple Triple(TargetTriple); - if (Triple.getTriple().empty()) - Triple = llvm::Triple(llvm::sys::getHostTriple()); + static_cast<void*>(&Clang.getDiagnostics())); - // Get information about the target being compiled for. - llvm::OwningPtr<TargetInfo> - Target(TargetInfo::CreateTargetInfo(Triple.getTriple())); - - if (Target == 0) { - Diags.Report(FullSourceLoc(), diag::err_fe_unknown_triple) - << Triple.getTriple().c_str(); + // Now that we have initialized the diagnostics engine, create the target and + // the compiler invocation object. + // + // FIXME: We should move .ast inputs to taking a separate path, they are + // really quite different. + bool IsAST = false; + Clang.setTarget( + ConstructCompilerInvocation(Clang.getInvocation(), Clang.getDiagnostics(), + argv[0], IsAST)); + if (!Clang.hasTarget()) return 1; - } - - // Set the target ABI if specified. - if (!TargetABI.empty()) { - if (!Target->setABI(TargetABI)) { - Diags.Report(FullSourceLoc(), diag::err_fe_unknown_target_abi) - << TargetABI; - return 1; - } - } - - if (!InheritanceViewCls.empty()) // C++ visualization? - ProgAction = InheritanceView; - - // Create the source manager. - SourceManager SourceMgr; - - // Create a file manager object to provide access to and cache the filesystem. - FileManager FileMgr; - - // Compute the feature set, unfortunately this effects the language! - llvm::StringMap<bool> Features; - ComputeFeatureMap(Target.get(), Features); - - for (unsigned i = 0, e = InputFilenames.size(); i != e; ++i) { - const std::string &InFile = InputFilenames[i]; - - LangKind LK = GetLanguage(InFile); - // AST inputs are handled specially. - if (LK == langkind_ast) { - ProcessASTInputFile(InFile, ProgAction, Features, - Diags, FileMgr, Context); - continue; - } - - // Reset the ID tables if we are reusing the SourceManager. - if (i) - SourceMgr.clearIDTables(); - - // Initialize language options, inferring file types from input filenames. - LangOptions LangInfo; - InitializeLangOptions(LangInfo, LK); - InitializeLanguageStandard(LangInfo, LK, Target.get(), Features); - - // Process the -I options and set them in the HeaderInfo. - HeaderSearch HeaderInfo(FileMgr); - - - InitializeIncludePaths(argv[0], HeaderInfo, FileMgr, LangInfo, Triple); + // Validate/process some options + if (Clang.getHeaderSearchOpts().Verbose) + llvm::errs() << "clang-cc version " CLANG_VERSION_STRING + << " based upon " << PACKAGE_STRING + << " hosted on " << llvm::sys::getHostTriple() << "\n"; - // Set up the preprocessor with these options. - llvm::OwningPtr<Preprocessor> PP(CreatePreprocessor(Diags, LangInfo, - *Target, SourceMgr, - HeaderInfo)); + if (Clang.getFrontendOpts().ShowTimers) + ClangFrontendTimer = new llvm::Timer("Clang front-end time"); - // Handle generating dependencies, if requested. - if (!DependencyFile.empty()) { - if (DependencyTargets.empty()) { - Diags.Report(FullSourceLoc(), diag::err_fe_dependency_file_requires_MT); - continue; - } - std::string ErrStr; - llvm::raw_ostream *DependencyOS = - new llvm::raw_fd_ostream(DependencyFile.c_str(), ErrStr); - if (!ErrStr.empty()) { - Diags.Report(FullSourceLoc(), diag::err_fe_error_opening) - << DependencyFile << ErrStr; - continue; + // Enforce certain implications. + if (!Clang.getFrontendOpts().ViewClassInheritance.empty()) + Clang.getFrontendOpts().ProgramAction = frontend::InheritanceView; + if (!Clang.getFrontendOpts().FixItLocations.empty()) + Clang.getFrontendOpts().ProgramAction = frontend::FixIt; + + for (unsigned i = 0, e = Clang.getFrontendOpts().Inputs.size(); i != e; ++i) { + const std::string &InFile = Clang.getFrontendOpts().Inputs[i].second; + + // If we aren't using an AST file, setup the file and source managers and + // the preprocessor. + if (!IsAST) { + if (!i) { + // Create a file manager object to provide access to and cache the + // filesystem. + Clang.createFileManager(); + + // Create the source manager. + Clang.createSourceManager(); + } else { + // Reset the ID tables if we are reusing the SourceManager. + Clang.getSourceManager().clearIDTables(); } - AttachDependencyFileGen(PP.get(), DependencyOS, DependencyTargets, - DependenciesIncludeSystemHeaders, - PhonyDependencyTarget); + // Create the preprocessor. + Clang.createPreprocessor(); } - if (ImplicitIncludePCH.empty()) { - if (InitializeSourceManager(*PP.get(), InFile)) - continue; + llvm::OwningPtr<FrontendAction> Act(CreateFrontendAction(Clang)); + if (!Act) + break; - // Initialize builtin info. - PP->getBuiltinInfo().InitializeBuiltins(PP->getIdentifierTable(), - PP->getLangOptions().NoBuiltin); + Act->setCurrentTimer(ClangFrontendTimer); + if (Act->BeginSourceFile(Clang, InFile, IsAST)) { + Act->Execute(); + Act->EndSourceFile(); } - - // Process the source file. - DiagClient->BeginSourceFile(LangInfo); - ProcessInputFile(*PP, InFile, ProgAction, Features, Context); - DiagClient->EndSourceFile(); - - HeaderInfo.ClearFileInfo(); } - if (!NoCaretDiagnostics) - if (unsigned NumDiagnostics = Diags.getNumDiagnostics()) + if (Clang.getDiagnosticOpts().ShowCarets) + if (unsigned NumDiagnostics = Clang.getDiagnostics().getNumDiagnostics()) fprintf(stderr, "%d diagnostic%s generated.\n", NumDiagnostics, (NumDiagnostics == 1 ? "" : "s")); - if (Stats) { - FileMgr.PrintStats(); + if (Clang.getFrontendOpts().ShowStats) { + Clang.getFileManager().PrintStats(); fprintf(stderr, "\n"); } delete ClangFrontendTimer; - delete BuildLogFile; - // If verifying diagnostics and we reached here, all is well. - if (VerifyDiagnostics) - return 0; + // Return the appropriate status when verifying diagnostics. + // + // FIXME: If we could make getNumErrors() do the right thing, we wouldn't need + // this. + if (Clang.getDiagnosticOpts().VerifyDiagnostics) + return static_cast<VerifyDiagnosticsClient&>( + Clang.getDiagnosticClient()).HadErrors(); // Managed static deconstruction. Useful for making things like // -time-passes usable. llvm::llvm_shutdown(); - return (Diags.getNumErrors() != 0); + return (Clang.getDiagnostics().getNumErrors() != 0); } + |