| //===--- clang.cpp - C-Language Front-end ---------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // 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. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "Options.h" |
| #include "clang/Frontend/AnalysisConsumer.h" |
| #include "clang/Frontend/ASTConsumers.h" |
| #include "clang/Frontend/ASTUnit.h" |
| #include "clang/Frontend/CompilerInvocation.h" |
| #include "clang/Frontend/DiagnosticOptions.h" |
| #include "clang/Frontend/FixItRewriter.h" |
| #include "clang/Frontend/FrontendDiagnostic.h" |
| #include "clang/Frontend/HeaderSearchOptions.h" |
| #include "clang/Frontend/PCHReader.h" |
| #include "clang/Frontend/PathDiagnosticClients.h" |
| #include "clang/Frontend/PreprocessorOptions.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 "clang/Basic/FileManager.h" |
| #include "clang/Basic/SourceManager.h" |
| #include "clang/Basic/TargetInfo.h" |
| #include "clang/Basic/Version.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/StringSwitch.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")); |
| |
| |
| enum CodeCompletionPrinter { |
| CCP_Debug, |
| CCP_CIndex |
| }; |
| |
| 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<CodeCompletionPrinter> |
| CodeCompletionPrinter("code-completion-printer", |
| llvm::cl::desc("Choose output type:"), |
| llvm::cl::init(CCP_Debug), |
| llvm::cl::values( |
| clEnumValN(CCP_Debug, "debug", |
| "Debug code-completion results"), |
| clEnumValN(CCP_CIndex, "cindex", |
| "Code-completion results for the CIndex library"), |
| clEnumValEnd)); |
| |
| static llvm::cl::opt<bool> |
| CodeCompletionWantsMacros("code-completion-macros", |
| llvm::cl::desc("Include macros in code-completion results")); |
| |
| /// \brief Buld a new code-completion consumer that prints the results of |
| /// code completion to standard output. |
| static CodeCompleteConsumer *BuildPrintingCodeCompleter(Sema &S, void *) { |
| switch (CodeCompletionPrinter.getValue()) { |
| case CCP_Debug: |
| return new PrintingCodeCompleteConsumer(S, CodeCompletionWantsMacros, |
| llvm::outs()); |
| |
| case CCP_CIndex: |
| return new CIndexCodeCompleteConsumer(S, CodeCompletionWantsMacros, |
| llvm::outs()); |
| }; |
| |
| return 0; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // 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 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 void InitializeCOptions(LangOptions &Options) { |
| // Do nothing. |
| } |
| |
| static void InitializeObjCOptions(LangOptions &Options) { |
| Options.ObjC1 = Options.ObjC2 = 1; |
| } |
| |
| |
| static void InitializeLangOptions(LangOptions &Options, LangKind LK){ |
| 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> |
| ShortWChar("fshort-wchar", |
| llvm::cl::desc("Force wchar_t to be a short unsigned int")); |
| |
| |
| 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<std::string> |
| MainFileName("main-file-name", |
| llvm::cl::desc("Main file name to use for debug info")); |
| |
| 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<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<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 CompileOptions &CompileOpts, |
| const llvm::StringMap<bool> &Features) { |
| // 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(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 (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 = !!CompileOpts.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 = !CompileOpts.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); |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // 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(diag::err_fe_error_reading) << InFile.c_str(); |
| return true; |
| } |
| } else { |
| llvm::MemoryBuffer *SB = llvm::MemoryBuffer::getSTDIN(); |
| SourceMgr.createMainFileIDForMemBuffer(SB); |
| if (SourceMgr.getMainFileID().isInvalid()) { |
| PP.getDiagnostics().Report(diag::err_fe_error_reading_stdin); |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| |
| //===----------------------------------------------------------------------===// |
| // Preprocessor Initialization |
| //===----------------------------------------------------------------------===// |
| |
| 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 |
| |
| 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. |
| std::string GetBuiltinIncludePath(const char *Argv0) { |
| llvm::sys::Path P = |
| llvm::sys::Path::GetMainExecutable(Argv0, |
| (void*)(intptr_t) GetBuiltinIncludePath); |
| |
| if (!P.isEmpty()) { |
| P.eraseComponent(); // Remove /clang from foo/bin/clang |
| P.eraseComponent(); // Remove /bin from foo/bin |
| |
| // Get foo/lib/clang/<version>/include |
| P.appendComponent("lib"); |
| P.appendComponent("clang"); |
| P.appendComponent(CLANG_VERSION_STRING); |
| P.appendComponent("include"); |
| } |
| |
| return P.str(); |
| } |
| |
| /// InitializeIncludePaths - Process the -I options and set them in the |
| /// HeaderSearch object. |
| static void InitializeIncludePaths(HeaderSearchOptions &Opts, |
| const char *Argv0, |
| const LangOptions &Lang) { |
| 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 = GetBuiltinIncludePath(Argv0); |
| |
| Opts.UseStandardIncludes = !nostdinc; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Preprocessor construction |
| //===----------------------------------------------------------------------===// |
| |
| static Preprocessor * |
| CreatePreprocessor(Diagnostic &Diags, const LangOptions &LangInfo, |
| const PreprocessorOptions &PPOpts, TargetInfo &Target, |
| SourceManager &SourceMgr, HeaderSearch &HeaderInfo) { |
| PTHManager *PTHMgr = 0; |
| if (!TokenCache.empty() && !PPOpts.getImplicitPTHInclude().empty()) { |
| fprintf(stderr, "error: cannot use both -token-cache and -include-pth " |
| "options\n"); |
| exit(1); |
| } |
| |
| // Use PTH? |
| if (!TokenCache.empty() || !PPOpts.getImplicitPTHInclude().empty()) { |
| const std::string& x = TokenCache.empty() ? |
| PPOpts.getImplicitPTHInclude() : TokenCache; |
| PTHMgr = PTHManager::Create(x, &Diags, |
| TokenCache.empty() ? Diagnostic::Error |
| : Diagnostic::Warning); |
| } |
| |
| if (Diags.hasErrorOccurred()) |
| exit(1); |
| |
| // Create the Preprocessor. |
| Preprocessor *PP = new Preprocessor(Diags, LangInfo, Target, |
| SourceMgr, HeaderInfo, PTHMgr); |
| |
| // 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); |
| } |
| |
| InitializePreprocessor(*PP, PPOpts); |
| |
| return PP; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Basic Parser driver |
| //===----------------------------------------------------------------------===// |
| |
| static void ParseFile(Preprocessor &PP, MinimalAction *PA) { |
| Parser P(PP, *PA); |
| PP.EnterMainSourceFile(); |
| |
| // Parsing the specified input file. |
| P.ParseTranslationUnit(); |
| delete PA; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // 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")); |
| |
| 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(const DiagnosticOptions &DiagOpts, |
| 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(const DiagnosticOptions &DiagOpts, |
| 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(DiagOpts, DiagClient.take())); |
| } |
| |
| |
| |
| //===----------------------------------------------------------------------===// |
| // Main driver |
| //===----------------------------------------------------------------------===// |
| |
| static llvm::raw_ostream *ComputeOutFile(const CompilerInvocation &CompOpts, |
| const std::string &InFile, |
| const char *Extension, |
| bool Binary, |
| llvm::sys::Path& OutPath) { |
| llvm::raw_ostream *Ret; |
| std::string OutFile; |
| if (!CompOpts.getOutputFile().empty()) |
| OutFile = CompOpts.getOutputFile(); |
| 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(const CompilerInvocation &CompOpts, |
| Preprocessor &PP, |
| const std::string &InFile, |
| ProgActions PA, |
| llvm::OwningPtr<llvm::raw_ostream> &OS, |
| llvm::sys::Path &OutPath, |
| llvm::LLVMContext& Context) { |
| switch (PA) { |
| default: |
| return 0; |
| |
| case ASTPrint: |
| OS.reset(ComputeOutFile(CompOpts, InFile, 0, false, OutPath)); |
| return CreateASTPrinter(OS.get()); |
| |
| case ASTPrintXML: |
| OS.reset(ComputeOutFile(CompOpts, InFile, "xml", false, OutPath)); |
| return CreateASTPrinterXML(OS.get()); |
| |
| case ASTDump: |
| return CreateASTDumper(); |
| |
| case ASTView: |
| return CreateASTViewer(); |
| |
| 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(CompOpts, InFile, "s", true, OutPath)); |
| } else if (ProgAction == EmitLLVM) { |
| Act = Backend_EmitLL; |
| OS.reset(ComputeOutFile(CompOpts, InFile, "ll", true, OutPath)); |
| } else if (ProgAction == EmitLLVMOnly) { |
| Act = Backend_EmitNothing; |
| } else { |
| Act = Backend_EmitBC; |
| OS.reset(ComputeOutFile(CompOpts, InFile, "bc", true, OutPath)); |
| } |
| |
| return CreateBackendConsumer(Act, PP.getDiagnostics(), PP.getLangOptions(), |
| CompOpts.getCompileOpts(), InFile, OS.get(), |
| Context); |
| } |
| |
| case RewriteObjC: |
| OS.reset(ComputeOutFile(CompOpts, InFile, "cpp", true, OutPath)); |
| return CreateObjCRewriter(InFile, OS.get(), PP.getDiagnostics(), |
| PP.getLangOptions(), SilenceRewriteMacroWarning); |
| |
| case RewriteBlocks: |
| return CreateBlockRewriter(InFile, PP.getDiagnostics(), |
| PP.getLangOptions()); |
| |
| case ParseSyntaxOnly: |
| return new ASTConsumer(); |
| |
| case PrintDeclContext: |
| return CreateDeclContextPrinter(); |
| } |
| } |
| |
| /// ProcessInputFile - Process a single input file with the specified state. |
| /// |
| static void ProcessInputFile(const CompilerInvocation &CompOpts, |
| Preprocessor &PP, const std::string &InFile, |
| ProgActions PA, |
| 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(CompOpts, PP, InFile, PA, OS, OutPath, |
| Context)); |
| |
| if (!Consumer.get()) { |
| PP.getDiagnostics().Report(diag::err_fe_invalid_ast_action); |
| return; |
| } |
| |
| break;; |
| |
| case EmitHTML: |
| OS.reset(ComputeOutFile(CompOpts, InFile, 0, true, OutPath)); |
| Consumer.reset(CreateHTMLPrinter(OS.get(), PP)); |
| break; |
| |
| case RunAnalysis: |
| Consumer.reset(CreateAnalysisConsumer(PP, CompOpts.getOutputFile(), |
| ReadAnalyzerOptions())); |
| break; |
| |
| case GeneratePCH: |
| if (RelocatablePCH.getValue() && !isysroot.getNumOccurrences()) { |
| PP.Diag(SourceLocation(), diag::err_relocatable_without_without_isysroot); |
| RelocatablePCH.setValue(false); |
| } |
| |
| OS.reset(ComputeOutFile(CompOpts, 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; |
| |
| 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 (CompOpts.getOutputFile().empty() || CompOpts.getOutputFile() == "-") { |
| // 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(CompOpts, InFile, 0, true, OutPath)); |
| CacheTokens(PP, static_cast<llvm::raw_fd_ostream*>(OS.get())); |
| ClearSourceMgr = true; |
| break; |
| } |
| |
| case PrintPreprocessedInput: |
| OS.reset(ComputeOutFile(CompOpts, InFile, 0, true, OutPath)); |
| break; |
| |
| case ParseNoop: |
| break; |
| |
| case ParsePrintCallbacks: { |
| llvm::TimeRegion Timer(ClangFrontendTimer); |
| OS.reset(ComputeOutFile(CompOpts, InFile, 0, true, OutPath)); |
| ParseFile(PP, CreatePrintParserActionsAction(PP, OS.get())); |
| ClearSourceMgr = true; |
| break; |
| } |
| |
| case RewriteMacros: |
| OS.reset(ComputeOutFile(CompOpts, InFile, 0, true, OutPath)); |
| RewriteMacrosInInput(PP, OS.get()); |
| ClearSourceMgr = true; |
| break; |
| |
| case RewriteTest: |
| OS.reset(ComputeOutFile(CompOpts, InFile, 0, true, OutPath)); |
| DoRewriteTest(PP, OS.get()); |
| ClearSourceMgr = true; |
| break; |
| |
| case FixIt: |
| 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; |
| |
| const std::string &ImplicitPCHInclude = |
| CompOpts.getPreprocessorOpts().getImplicitPCHInclude(); |
| if (!ImplicitPCHInclude.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(ImplicitPCHInclude)) { |
| 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; |
| } |
| |
| // 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; |
| |
| 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); |
| |
| // Set up the creation routine for code-completion. |
| CreateCodeCompleter = BuildPrintingCodeCompleter; |
| } else { |
| PP.getDiagnostics().Report(diag::err_fe_invalid_code_complete_file) |
| << CodeCompletionAt.FileName; |
| } |
| } |
| |
| 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, CompOpts.getOutputFile()); |
| |
| // 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 CompilerInvocation &CompOpts, |
| const std::string &InFile, ProgActions PA, |
| Diagnostic &Diags, FileManager &FileMgr, |
| llvm::LLVMContext& Context) { |
| std::string Error; |
| llvm::OwningPtr<ASTUnit> AST(ASTUnit::LoadFromPCHFile(InFile, &Error)); |
| if (!AST) { |
| Diags.Report(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(CompOpts, PP, |
| InFile, PA, OS, |
| OutPath, Context)); |
| |
| if (!Consumer.get()) { |
| Diags.Report(diag::err_fe_invalid_ast_action); |
| return; |
| } |
| |
| // Set the main file ID to an empty file. |
| // |
| // 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(); |
| |
| // 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(); |
| } |
| |
| // 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(); |
| } |
| |
| static llvm::cl::list<std::string> |
| InputFilenames(llvm::cl::Positional, llvm::cl::desc("<input files>")); |
| |
| static void LLVMErrorHandler(void *UserData, const std::string &Message) { |
| Diagnostic &Diags = *static_cast<Diagnostic*>(UserData); |
| |
| Diags.Report(diag::err_fe_error_backend) << Message; |
| |
| // We cannot recover from llvm errors. |
| exit(1); |
| } |
| |
| static LangKind GetLanguage() { |
| // If -x was given, that's the language. |
| if (BaseLang != langkind_unspecified) |
| return BaseLang; |
| |
| // Otherwise guess it from the input filenames; |
| LangKind LK = langkind_unspecified; |
| for (unsigned i = 0, e = InputFilenames.size(); i != e; ++i) { |
| llvm::StringRef Name(InputFilenames[i]); |
| LangKind ThisKind = llvm::StringSwitch<LangKind>(Name.rsplit('.').second) |
| .Case("ast", langkind_ast) |
| .Case("c", langkind_c) |
| .Cases("S", "s", langkind_asm_cpp) |
| .Case("i", langkind_c_cpp) |
| .Case("ii", langkind_cxx_cpp) |
| .Case("m", langkind_objc) |
| .Case("mi", langkind_objc_cpp) |
| .Cases("mm", "M", langkind_objcxx) |
| .Case("mii", langkind_objcxx_cpp) |
| .Case("C", langkind_cxx) |
| .Cases("C", "cc", "cp", langkind_cxx) |
| .Cases("cpp", "CPP", "c++", "cxx", langkind_cxx) |
| .Case("cl", langkind_ocl) |
| .Default(langkind_c); |
| |
| if (LK != langkind_unspecified && ThisKind != LK) { |
| llvm::errs() << "error: cannot have multiple input files of distinct " |
| << "language kinds without -x\n"; |
| exit(1); |
| } |
| |
| LK = ThisKind; |
| } |
| |
| return LK; |
| } |
| |
| static void ConstructDiagnosticOptions(DiagnosticOptions &Opts) { |
| // Initialize the diagnostic options. |
| Opts.ShowColumn = !NoShowColumn; |
| Opts.ShowLocation = !NoShowLocation; |
| Opts.ShowCarets = !NoCaretDiagnostics; |
| Opts.ShowFixits = !NoDiagnosticsFixIt; |
| Opts.ShowSourceRanges = PrintSourceRangeInfo; |
| Opts.ShowOptionNames = PrintDiagnosticOption; |
| Opts.ShowColors = PrintColorDiagnostic; |
| Opts.MessageLength = MessageLength; |
| } |
| |
| static void FinalizeCompileOptions(CompileOptions &Opts, |
| const LangOptions &Lang) { |
| if (Lang.NoBuiltin) |
| Opts.SimplifyLibCalls = 0; |
| if (Lang.CPlusPlus) |
| Opts.NoCommon = 1; |
| |
| // Handle -ftime-report. |
| Opts.TimePasses = TimeReport; |
| } |
| |
| static void ConstructCompilerInvocation(CompilerInvocation &Opts, |
| const char *Argv0, |
| const DiagnosticOptions &DiagOpts, |
| TargetInfo &Target, |
| LangKind LK) { |
| Opts.getDiagnosticOpts() = DiagOpts; |
| |
| Opts.getOutputFile() = OutputFile; |
| |
| // Compute the feature set, which may effect the language. |
| ComputeFeatureMap(Target, Opts.getTargetFeatures()); |
| |
| // Initialize backend options, which may also be used to key some language |
| // options. |
| InitializeCompileOptions(Opts.getCompileOpts(), Opts.getTargetFeatures()); |
| |
| // Initialize language options. |
| LangOptions LangInfo; |
| |
| // FIXME: These aren't used during operations on ASTs. Split onto a separate |
| // code path to make this obvious. |
| if (LK != langkind_ast) { |
| InitializeLangOptions(Opts.getLangOpts(), LK); |
| InitializeLanguageStandard(Opts.getLangOpts(), LK, Target, |
| Opts.getCompileOpts(), Opts.getTargetFeatures()); |
| } |
| |
| // Initialize the header search options. |
| InitializeIncludePaths(Opts.getHeaderSearchOpts(), Argv0, Opts.getLangOpts()); |
| |
| // Initialize the other preprocessor options. |
| InitializePreprocessorOptions(Opts.getPreprocessorOpts()); |
| |
| // Finalize some code generation options. |
| FinalizeCompileOptions(Opts.getCompileOpts(), Opts.getLangOpts()); |
| } |
| |
| int main(int argc, char **argv) { |
| llvm::sys::PrintStackTraceOnErrorSignal(); |
| llvm::PrettyStackTraceProgram X(argc, argv); |
| llvm::LLVMContext &Context = llvm::getGlobalContext(); |
| |
| // Initialize targets first, so that --version shows registered targets. |
| llvm::InitializeAllTargets(); |
| llvm::InitializeAllAsmPrinters(); |
| |
| 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("-"); |
| |
| // Construct the diagnostic options first, which cannot fail, so that we can |
| // build a diagnostic client to use for any errors during option handling. |
| DiagnosticOptions DiagOpts; |
| ConstructDiagnosticOptions(DiagOpts); |
| |
| // 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.\n"); |
| return 1; |
| } |
| } else { |
| DiagClient.reset(new TextDiagnosticPrinter(llvm::errs(), DiagOpts)); |
| } |
| |
| if (!DumpBuildInformation.empty()) |
| SetUpBuildDumpLog(DiagOpts, argc, argv, DiagClient); |
| |
| // Configure our handling of diagnostics. |
| Diagnostic Diags(DiagClient.get()); |
| if (ProcessWarningOptions(Diags, OptWarnings, OptPedantic, OptPedanticErrors, |
| OptNoWarnings)) |
| 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()); |
| |
| // Get information about the target being compiled for. |
| llvm::OwningPtr<TargetInfo> |
| Target(TargetInfo::CreateTargetInfo(Triple.getTriple())); |
| |
| if (Target == 0) { |
| Diags.Report(diag::err_fe_unknown_triple) << Triple.getTriple().c_str(); |
| return 1; |
| } |
| |
| // Set the target ABI if specified. |
| if (!TargetABI.empty()) { |
| if (!Target->setABI(TargetABI)) { |
| Diags.Report(diag::err_fe_unknown_target_abi) << TargetABI; |
| return 1; |
| } |
| } |
| |
| if (!InheritanceViewCls.empty()) // C++ visualization? |
| ProgAction = InheritanceView; |
| |
| // Infer the input language. |
| // |
| // FIXME: We should move .ast inputs to taking a separate path, they are |
| // really quite different. |
| LangKind LK = GetLanguage(); |
| |
| // Now that we have initialized the diagnostics engine and the target, finish |
| // setting up the compiler invocation. |
| CompilerInvocation CompOpts; |
| ConstructCompilerInvocation(CompOpts, argv[0], DiagOpts, *Target, LK); |
| |
| // Create the source manager. |
| SourceManager SourceMgr; |
| |
| // Create a file manager object to provide access to and cache the filesystem. |
| FileManager FileMgr; |
| |
| for (unsigned i = 0, e = InputFilenames.size(); i != e; ++i) { |
| const std::string &InFile = InputFilenames[i]; |
| |
| // AST inputs are handled specially. |
| if (LK == langkind_ast) { |
| ProcessASTInputFile(CompOpts, InFile, ProgAction, Diags, FileMgr, |
| Context); |
| continue; |
| } |
| |
| // Reset the ID tables if we are reusing the SourceManager. |
| if (i) |
| SourceMgr.clearIDTables(); |
| |
| // Process the -I options and set them in the HeaderInfo. |
| HeaderSearch HeaderInfo(FileMgr); |
| |
| // Apply all the options to the header search object. |
| ApplyHeaderSearchOptions(CompOpts.getHeaderSearchOpts(), HeaderInfo, |
| CompOpts.getLangOpts(), Triple); |
| |
| // Set up the preprocessor with these options. |
| llvm::OwningPtr<Preprocessor> |
| PP(CreatePreprocessor(Diags, CompOpts.getLangOpts(), |
| CompOpts.getPreprocessorOpts(), *Target, SourceMgr, |
| HeaderInfo)); |
| |
| // Handle generating dependencies, if requested. |
| if (!DependencyFile.empty()) { |
| if (DependencyTargets.empty()) { |
| Diags.Report(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(diag::err_fe_error_opening) << DependencyFile << ErrStr; |
| continue; |
| } |
| |
| AttachDependencyFileGen(PP.get(), DependencyOS, DependencyTargets, |
| DependenciesIncludeSystemHeaders, |
| PhonyDependencyTarget); |
| } |
| |
| if (CompOpts.getPreprocessorOpts().getImplicitPCHInclude().empty()) { |
| if (InitializeSourceManager(*PP.get(), InFile)) |
| continue; |
| |
| // Initialize builtin info. |
| PP->getBuiltinInfo().InitializeBuiltins(PP->getIdentifierTable(), |
| PP->getLangOptions().NoBuiltin); |
| } |
| |
| // Process the source file. |
| Diags.getClient()->BeginSourceFile(CompOpts.getLangOpts()); |
| ProcessInputFile(CompOpts, *PP, InFile, ProgAction, Context); |
| Diags.getClient()->EndSourceFile(); |
| |
| HeaderInfo.ClearFileInfo(); |
| } |
| |
| if (CompOpts.getDiagnosticOpts().ShowCarets) |
| if (unsigned NumDiagnostics = Diags.getNumDiagnostics()) |
| fprintf(stderr, "%d diagnostic%s generated.\n", NumDiagnostics, |
| (NumDiagnostics == 1 ? "" : "s")); |
| |
| if (Stats) { |
| FileMgr.PrintStats(); |
| fprintf(stderr, "\n"); |
| } |
| |
| delete ClangFrontendTimer; |
| delete BuildLogFile; |
| |
| // If verifying diagnostics and we reached here, all is well. |
| if (VerifyDiagnostics) |
| return 0; |
| |
| // Managed static deconstruction. Useful for making things like |
| // -time-passes usable. |
| llvm::llvm_shutdown(); |
| |
| return (Diags.getNumErrors() != 0); |
| } |