From e116ccf140b813ecd20e3fb4041d7d0b8a967c0b Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Tue, 21 Apr 2009 05:40:52 +0000 Subject: [PATCH] Split preprocessor initialization logic out of clang-cc into libfrontend. Patch by Alexei Svitkine! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69664 91177308-0d34-0410-b5e6-96231b3b80d8 --- clang.xcodeproj/project.pbxproj | 6 + include/clang/Frontend/InitPreprocessor.h | 71 +++ lib/Frontend/CMakeLists.txt | 1 + lib/Frontend/InitPreprocessor.cpp | 469 ++++++++++++++++++ tools/clang-cc/clang-cc.cpp | 564 +++------------------- 5 files changed, 625 insertions(+), 486 deletions(-) create mode 100644 include/clang/Frontend/InitPreprocessor.h create mode 100644 lib/Frontend/InitPreprocessor.cpp diff --git a/clang.xcodeproj/project.pbxproj b/clang.xcodeproj/project.pbxproj index 746f1a4ddf..52d34bb950 100644 --- a/clang.xcodeproj/project.pbxproj +++ b/clang.xcodeproj/project.pbxproj @@ -175,6 +175,7 @@ DEC8D9A40A94346E00353FCA /* AST.h in CopyFiles */ = {isa = PBXBuildFile; fileRef = DEC8D9A30A94346E00353FCA /* AST.h */; }; DECAB0D00DB3C84200E13CCB /* RewriteRope.cpp in Sources */ = {isa = PBXBuildFile; fileRef = DECAB0CF0DB3C84200E13CCB /* RewriteRope.cpp */; }; DECB6D650F9AE26600F5FBC7 /* JumpDiagnostics.cpp in Sources */ = {isa = PBXBuildFile; fileRef = DECB6D640F9AE26600F5FBC7 /* JumpDiagnostics.cpp */; }; + DECB6F070F9D93A800F5FBC7 /* InitPreprocessor.cpp in Sources */ = {isa = PBXBuildFile; fileRef = DECB6F060F9D93A800F5FBC7 /* InitPreprocessor.cpp */; }; DED626C90AE0C065001E80A4 /* TargetInfo.cpp in Sources */ = {isa = PBXBuildFile; fileRef = DED626C80AE0C065001E80A4 /* TargetInfo.cpp */; }; DED62ABB0AE2EDF1001E80A4 /* Decl.cpp in Sources */ = {isa = PBXBuildFile; fileRef = DED62ABA0AE2EDF1001E80A4 /* Decl.cpp */; }; DED676D10B6C786700AAD4A3 /* Builtins.def in CopyFiles */ = {isa = PBXBuildFile; fileRef = DED676D00B6C786700AAD4A3 /* Builtins.def */; }; @@ -582,6 +583,8 @@ DEC8D9A30A94346E00353FCA /* AST.h */ = {isa = PBXFileReference; fileEncoding = 30; indentWidth = 2; lastKnownFileType = sourcecode.c.h; name = AST.h; path = clang/AST/AST.h; sourceTree = ""; tabWidth = 2; }; DECAB0CF0DB3C84200E13CCB /* RewriteRope.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = RewriteRope.cpp; path = lib/Rewrite/RewriteRope.cpp; sourceTree = ""; }; DECB6D640F9AE26600F5FBC7 /* JumpDiagnostics.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = JumpDiagnostics.cpp; path = lib/Sema/JumpDiagnostics.cpp; sourceTree = ""; }; + DECB6F030F9D939A00F5FBC7 /* InitPreprocessor.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = InitPreprocessor.h; path = clang/Frontend/InitPreprocessor.h; sourceTree = ""; }; + DECB6F060F9D93A800F5FBC7 /* InitPreprocessor.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = InitPreprocessor.cpp; path = lib/Frontend/InitPreprocessor.cpp; sourceTree = ""; }; DED626C80AE0C065001E80A4 /* TargetInfo.cpp */ = {isa = PBXFileReference; fileEncoding = 30; indentWidth = 2; lastKnownFileType = sourcecode.cpp.cpp; path = TargetInfo.cpp; sourceTree = ""; tabWidth = 2; }; DED62ABA0AE2EDF1001E80A4 /* Decl.cpp */ = {isa = PBXFileReference; fileEncoding = 30; indentWidth = 2; lastKnownFileType = sourcecode.cpp.cpp; name = Decl.cpp; path = lib/AST/Decl.cpp; sourceTree = ""; tabWidth = 2; usesTabs = 0; }; DED676D00B6C786700AAD4A3 /* Builtins.def */ = {isa = PBXFileReference; fileEncoding = 30; indentWidth = 2; lastKnownFileType = text; name = Builtins.def; path = clang/AST/Builtins.def; sourceTree = ""; tabWidth = 2; }; @@ -803,6 +806,7 @@ DEF1683F0F9548DC0098507F /* FixItRewriter.cpp */, 352246E10F5C6BE000D0D279 /* HTMLDiagnostics.cpp */, 352246E20F5C6BE000D0D279 /* InitHeaderSearch.cpp */, + DECB6F060F9D93A800F5FBC7 /* InitPreprocessor.cpp */, 352246E30F5C6BE000D0D279 /* ManagerRegistry.cpp */, DEF165740F8FB3510098507F /* PCHReader.cpp */, DEF165700F8FB34D0098507F /* PCHWriter.cpp */, @@ -1363,6 +1367,7 @@ DEF168620F9549250098507F /* FixItRewriter.h */, DEF169220F9645960098507F /* FrontendDiagnostic.h */, DEF1615E0F65C81C0098507F /* InitHeaderSearch.h */, + DECB6F030F9D939A00F5FBC7 /* InitPreprocessor.h */, DEF1615F0F65C81C0098507F /* ManagerRegistry.h */, DEF1657E0F8FB3730098507F /* PCHBitCodes.h */, DEF1657B0F8FB36E0098507F /* PCHReader.h */, @@ -1657,6 +1662,7 @@ DEF165900F8FB3FC0098507F /* GeneratePCH.cpp in Sources */, DEF168400F9548DC0098507F /* FixItRewriter.cpp in Sources */, DECB6D650F9AE26600F5FBC7 /* JumpDiagnostics.cpp in Sources */, + DECB6F070F9D93A800F5FBC7 /* InitPreprocessor.cpp in Sources */, ); runOnlyForDeploymentPostprocessing = 0; }; diff --git a/include/clang/Frontend/InitPreprocessor.h b/include/clang/Frontend/InitPreprocessor.h new file mode 100644 index 0000000000..a51498b194 --- /dev/null +++ b/include/clang/Frontend/InitPreprocessor.h @@ -0,0 +1,71 @@ +//===--- InitPreprocessor.h - InitializePreprocessor function. --*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file defines the clang::InitializePreprocessor function. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_FRONTEND_INIT_PREPROCESSOR_H_ +#define LLVM_CLANG_FRONTEND_INIT_PREPROCESSOR_H_ + +#include +#include + +namespace clang { + +class Preprocessor; +class LangOptions; + +/// PreprocessorInitOptions - This class is used for passing the various +/// options used in preprocessor initialization to InitializePreprocessor(). +class PreprocessorInitOptions { + std::vector > Macros; + std::vector > Includes; + std::vector MacroIncludes; + +public: + + void addMacroDef(const std::string &Name) { + Macros.push_back(std::make_pair(Name, false)); + } + void addMacroUndef(const std::string &Name) { + Macros.push_back(std::make_pair(Name, true)); + } + void addInclude(const std::string &Name, bool isPTH = false) { + Includes.push_back(std::make_pair(Name, isPTH)); + } + void addMacroInclude(const std::string &Name) { + MacroIncludes.push_back(Name); + } + + typedef std::vector >::const_iterator macro_iterator; + macro_iterator macro_begin() const { return Macros.begin(); } + macro_iterator macro_end() const { return Macros.end(); } + + typedef std::vector >::const_iterator include_iterator; + include_iterator include_begin() const { return Includes.begin(); } + include_iterator include_end() const { return Includes.end(); } + + typedef std::vector::const_iterator imacro_iterator; + imacro_iterator imacro_begin() const { return MacroIncludes.begin(); } + imacro_iterator imacro_end() const { return MacroIncludes.end(); } +}; + +/// InitializePreprocessor - Initialize the preprocessor getting it and the +/// environment ready to process a single file. This returns true on error. +/// +bool InitializePreprocessor(Preprocessor &PP, + const std::string &InFile, + const PreprocessorInitOptions& InitOptions); + +} // end namespace clang + +#endif diff --git a/lib/Frontend/CMakeLists.txt b/lib/Frontend/CMakeLists.txt index ea7452ea36..817af57d09 100644 --- a/lib/Frontend/CMakeLists.txt +++ b/lib/Frontend/CMakeLists.txt @@ -4,6 +4,7 @@ add_clang_library(clangFrontend FixItRewriter.cpp HTMLDiagnostics.cpp InitHeaderSearch.cpp + InitPreprocessor.cpp TextDiagnosticBuffer.cpp TextDiagnosticPrinter.cpp PCHReader.cpp diff --git a/lib/Frontend/InitPreprocessor.cpp b/lib/Frontend/InitPreprocessor.cpp new file mode 100644 index 0000000000..eb2d64c46d --- /dev/null +++ b/lib/Frontend/InitPreprocessor.cpp @@ -0,0 +1,469 @@ +//===--- InitPreprocessor.cpp - PP initialization code. ---------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file implements the clang::InitializePreprocessor function. +// +//===----------------------------------------------------------------------===// + +#include "clang/Frontend/InitPreprocessor.h" +#include "clang/Basic/TargetInfo.h" +#include "clang/Lex/Preprocessor.h" +#include "llvm/ADT/StringExtras.h" +#include "llvm/ADT/STLExtras.h" +#include "llvm/System/Path.h" + +namespace clang { + +// Append a #define line to Buf for Macro. Macro should be of the form XXX, +// in which case we emit "#define XXX 1" or "XXX=Y z W" in which case we emit +// "#define XXX Y z W". To get a #define with no value, use "XXX=". +static void DefineBuiltinMacro(std::vector &Buf, const char *Macro, + const char *Command = "#define ") { + Buf.insert(Buf.end(), Command, Command+strlen(Command)); + if (const char *Equal = strchr(Macro, '=')) { + // Turn the = into ' '. + Buf.insert(Buf.end(), Macro, Equal); + Buf.push_back(' '); + + // Per GCC -D semantics, the macro ends at \n if it exists. + const char *End = strpbrk(Equal, "\n\r"); + if (End) { + fprintf(stderr, "warning: macro '%s' contains embedded newline, text " + "after the newline is ignored.\n", + std::string(Macro, Equal).c_str()); + } else { + End = Equal+strlen(Equal); + } + + Buf.insert(Buf.end(), Equal+1, End); + } else { + // Push "macroname 1". + Buf.insert(Buf.end(), Macro, Macro+strlen(Macro)); + Buf.push_back(' '); + Buf.push_back('1'); + } + Buf.push_back('\n'); +} + +/// Add the quoted name of an implicit include file. +static void AddQuotedIncludePath(std::vector &Buf, + const std::string &File) { + // Implicit include paths are relative to the current working + // directory; resolve them now instead of using the normal machinery + // (which would look relative to the input file). + llvm::sys::Path Path(File); + Path.makeAbsolute(); + + // Escape double quotes etc. + Buf.push_back('"'); + std::string EscapedFile = Lexer::Stringify(Path.toString()); + Buf.insert(Buf.end(), EscapedFile.begin(), EscapedFile.end()); + Buf.push_back('"'); +} + +/// AddImplicitInclude - Add an implicit #include of the specified file to the +/// predefines buffer. +static void AddImplicitInclude(std::vector &Buf, + const std::string &File) { + const char *Inc = "#include "; + Buf.insert(Buf.end(), Inc, Inc+strlen(Inc)); + AddQuotedIncludePath(Buf, File); + Buf.push_back('\n'); +} + +static void AddImplicitIncludeMacros(std::vector &Buf, + const std::string &File) { + const char *Inc = "#__include_macros "; + Buf.insert(Buf.end(), Inc, Inc+strlen(Inc)); + AddQuotedIncludePath(Buf, File); + Buf.push_back('\n'); + // Marker token to stop the __include_macros fetch loop. + const char *Marker = "##\n"; // ##? + Buf.insert(Buf.end(), Marker, Marker+strlen(Marker)); +} + +/// AddImplicitIncludePTH - Add an implicit #include using the original file +/// used to generate a PTH cache. +static void AddImplicitIncludePTH(std::vector &Buf, Preprocessor &PP, + const std::string& ImplicitIncludePTH) { + PTHManager *P = PP.getPTHManager(); + assert(P && "No PTHManager."); + const char *OriginalFile = P->getOriginalSourceFile(); + + if (!OriginalFile) { + assert(!ImplicitIncludePTH.empty()); + fprintf(stderr, "error: PTH file '%s' does not designate an original " + "source header file for -include-pth\n", + ImplicitIncludePTH.c_str()); + exit (1); + } + + AddImplicitInclude(Buf, OriginalFile); +} + +/// PickFP - This is used to pick a value based on the FP semantics of the +/// specified FP model. +template +static T PickFP(const llvm::fltSemantics *Sem, T IEEESingleVal, + T IEEEDoubleVal, T X87DoubleExtendedVal, T PPCDoubleDoubleVal) { + if (Sem == &llvm::APFloat::IEEEsingle) + return IEEESingleVal; + if (Sem == &llvm::APFloat::IEEEdouble) + return IEEEDoubleVal; + if (Sem == &llvm::APFloat::x87DoubleExtended) + return X87DoubleExtendedVal; + assert(Sem == &llvm::APFloat::PPCDoubleDouble); + return PPCDoubleDoubleVal; +} + +static void DefineFloatMacros(std::vector &Buf, const char *Prefix, + const llvm::fltSemantics *Sem) { + const char *DenormMin, *Epsilon, *Max, *Min; + DenormMin = PickFP(Sem, "1.40129846e-45F", "4.9406564584124654e-324", + "3.64519953188247460253e-4951L", + "4.94065645841246544176568792868221e-324L"); + int Digits = PickFP(Sem, 6, 15, 18, 31); + Epsilon = PickFP(Sem, "1.19209290e-7F", "2.2204460492503131e-16", + "1.08420217248550443401e-19L", + "4.94065645841246544176568792868221e-324L"); + int HasInifinity = 1, HasQuietNaN = 1; + int MantissaDigits = PickFP(Sem, 24, 53, 64, 106); + int Min10Exp = PickFP(Sem, -37, -307, -4931, -291); + int Max10Exp = PickFP(Sem, 38, 308, 4932, 308); + int MinExp = PickFP(Sem, -125, -1021, -16381, -968); + int MaxExp = PickFP(Sem, 128, 1024, 16384, 1024); + Min = PickFP(Sem, "1.17549435e-38F", "2.2250738585072014e-308", + "3.36210314311209350626e-4932L", + "2.00416836000897277799610805135016e-292L"); + Max = PickFP(Sem, "3.40282347e+38F", "1.7976931348623157e+308", + "1.18973149535723176502e+4932L", + "1.79769313486231580793728971405301e+308L"); + + char MacroBuf[60]; + sprintf(MacroBuf, "__%s_DENORM_MIN__=%s", Prefix, DenormMin); + DefineBuiltinMacro(Buf, MacroBuf); + sprintf(MacroBuf, "__%s_DIG__=%d", Prefix, Digits); + DefineBuiltinMacro(Buf, MacroBuf); + sprintf(MacroBuf, "__%s_EPSILON__=%s", Prefix, Epsilon); + DefineBuiltinMacro(Buf, MacroBuf); + sprintf(MacroBuf, "__%s_HAS_INFINITY__=%d", Prefix, HasInifinity); + DefineBuiltinMacro(Buf, MacroBuf); + sprintf(MacroBuf, "__%s_HAS_QUIET_NAN__=%d", Prefix, HasQuietNaN); + DefineBuiltinMacro(Buf, MacroBuf); + sprintf(MacroBuf, "__%s_MANT_DIG__=%d", Prefix, MantissaDigits); + DefineBuiltinMacro(Buf, MacroBuf); + sprintf(MacroBuf, "__%s_MAX_10_EXP__=%d", Prefix, Max10Exp); + DefineBuiltinMacro(Buf, MacroBuf); + sprintf(MacroBuf, "__%s_MAX_EXP__=%d", Prefix, MaxExp); + DefineBuiltinMacro(Buf, MacroBuf); + sprintf(MacroBuf, "__%s_MAX__=%s", Prefix, Max); + DefineBuiltinMacro(Buf, MacroBuf); + sprintf(MacroBuf, "__%s_MIN_10_EXP__=(%d)", Prefix, Min10Exp); + DefineBuiltinMacro(Buf, MacroBuf); + sprintf(MacroBuf, "__%s_MIN_EXP__=(%d)", Prefix, MinExp); + DefineBuiltinMacro(Buf, MacroBuf); + sprintf(MacroBuf, "__%s_MIN__=%s", Prefix, Min); + DefineBuiltinMacro(Buf, MacroBuf); + sprintf(MacroBuf, "__%s_HAS_DENORM__=1", Prefix); + DefineBuiltinMacro(Buf, MacroBuf); +} + + +/// DefineTypeSize - Emit a macro to the predefines buffer that declares a macro +/// named MacroName with the max value for a type with width 'TypeWidth' a +/// signedness of 'isSigned' and with a value suffix of 'ValSuffix' (e.g. LL). +static void DefineTypeSize(const char *MacroName, unsigned TypeWidth, + const char *ValSuffix, bool isSigned, + std::vector &Buf) { + char MacroBuf[60]; + long long MaxVal; + if (isSigned) + MaxVal = (1LL << (TypeWidth - 1)) - 1; + else + MaxVal = ~0LL >> (64-TypeWidth); + + sprintf(MacroBuf, "%s=%llu%s", MacroName, MaxVal, ValSuffix); + DefineBuiltinMacro(Buf, MacroBuf); +} + +static void DefineType(const char *MacroName, TargetInfo::IntType Ty, + std::vector &Buf) { + char MacroBuf[60]; + sprintf(MacroBuf, "%s=%s", MacroName, TargetInfo::getTypeName(Ty)); + DefineBuiltinMacro(Buf, MacroBuf); +} + + +static void InitializePredefinedMacros(const TargetInfo &TI, + const LangOptions &LangOpts, + std::vector &Buf) { + char MacroBuf[60]; + // Compiler version introspection macros. + DefineBuiltinMacro(Buf, "__llvm__=1"); // LLVM Backend + DefineBuiltinMacro(Buf, "__clang__=1"); // Clang Frontend + + // Currently claim to be compatible with GCC 4.2.1-5621. + DefineBuiltinMacro(Buf, "__APPLE_CC__=5621"); + DefineBuiltinMacro(Buf, "__GNUC_MINOR__=2"); + DefineBuiltinMacro(Buf, "__GNUC_PATCHLEVEL__=1"); + DefineBuiltinMacro(Buf, "__GNUC__=4"); + DefineBuiltinMacro(Buf, "__GXX_ABI_VERSION=1002"); + DefineBuiltinMacro(Buf, "__VERSION__=\"4.2.1 Compatible Clang Compiler\""); + + + // Initialize language-specific preprocessor defines. + + // These should all be defined in the preprocessor according to the + // current language configuration. + if (!LangOpts.Microsoft) + DefineBuiltinMacro(Buf, "__STDC__=1"); + if (LangOpts.AsmPreprocessor) + DefineBuiltinMacro(Buf, "__ASSEMBLER__=1"); + if (LangOpts.C99 && !LangOpts.CPlusPlus) + DefineBuiltinMacro(Buf, "__STDC_VERSION__=199901L"); + else if (0) // STDC94 ? + DefineBuiltinMacro(Buf, "__STDC_VERSION__=199409L"); + + // Standard conforming mode? + if (!LangOpts.GNUMode) + DefineBuiltinMacro(Buf, "__STRICT_ANSI__=1"); + + if (LangOpts.CPlusPlus0x) + DefineBuiltinMacro(Buf, "__GXX_EXPERIMENTAL_CXX0X__"); + + if (LangOpts.Freestanding) + DefineBuiltinMacro(Buf, "__STDC_HOSTED__=0"); + else + DefineBuiltinMacro(Buf, "__STDC_HOSTED__=1"); + + if (LangOpts.ObjC1) { + DefineBuiltinMacro(Buf, "__OBJC__=1"); + if (LangOpts.ObjCNonFragileABI) { + DefineBuiltinMacro(Buf, "__OBJC2__=1"); + DefineBuiltinMacro(Buf, "OBJC_ZEROCOST_EXCEPTIONS=1"); + DefineBuiltinMacro(Buf, "__EXCEPTIONS=1"); + } + + if (LangOpts.getGCMode() != LangOptions::NonGC) + DefineBuiltinMacro(Buf, "__OBJC_GC__=1"); + + if (LangOpts.NeXTRuntime) + DefineBuiltinMacro(Buf, "__NEXT_RUNTIME__=1"); + } + + // darwin_constant_cfstrings controls this. This is also dependent + // on other things like the runtime I believe. This is set even for C code. + DefineBuiltinMacro(Buf, "__CONSTANT_CFSTRINGS__=1"); + + if (LangOpts.ObjC2) + DefineBuiltinMacro(Buf, "OBJC_NEW_PROPERTIES"); + + if (LangOpts.PascalStrings) + DefineBuiltinMacro(Buf, "__PASCAL_STRINGS__"); + + if (LangOpts.Blocks) { + DefineBuiltinMacro(Buf, "__block=__attribute__((__blocks__(byref)))"); + DefineBuiltinMacro(Buf, "__BLOCKS__=1"); + } + + if (LangOpts.CPlusPlus) { + DefineBuiltinMacro(Buf, "__DEPRECATED=1"); + DefineBuiltinMacro(Buf, "__EXCEPTIONS=1"); + DefineBuiltinMacro(Buf, "__GNUG__=4"); + DefineBuiltinMacro(Buf, "__GXX_WEAK__=1"); + DefineBuiltinMacro(Buf, "__cplusplus=1"); + DefineBuiltinMacro(Buf, "__private_extern__=extern"); + } + + // Filter out some microsoft extensions when trying to parse in ms-compat + // mode. + if (LangOpts.Microsoft) { + DefineBuiltinMacro(Buf, "_cdecl=__cdecl"); + DefineBuiltinMacro(Buf, "__int8=__INT8_TYPE__"); + DefineBuiltinMacro(Buf, "__int16=__INT16_TYPE__"); + DefineBuiltinMacro(Buf, "__int32=__INT32_TYPE__"); + DefineBuiltinMacro(Buf, "__int64=__INT64_TYPE__"); + } + + if (LangOpts.Optimize) + DefineBuiltinMacro(Buf, "__OPTIMIZE__=1"); + if (LangOpts.OptimizeSize) + DefineBuiltinMacro(Buf, "__OPTIMIZE_SIZE__=1"); + + // Initialize target-specific preprocessor defines. + + // Define type sizing macros based on the target properties. + assert(TI.getCharWidth() == 8 && "Only support 8-bit char so far"); + DefineBuiltinMacro(Buf, "__CHAR_BIT__=8"); + + unsigned IntMaxWidth; + const char *IntMaxSuffix; + if (TI.getIntMaxType() == TargetInfo::SignedLongLong) { + IntMaxWidth = TI.getLongLongWidth(); + IntMaxSuffix = "LL"; + } else if (TI.getIntMaxType() == TargetInfo::SignedLong) { + IntMaxWidth = TI.getLongWidth(); + IntMaxSuffix = "L"; + } else { + assert(TI.getIntMaxType() == TargetInfo::SignedInt); + IntMaxWidth = TI.getIntWidth(); + IntMaxSuffix = ""; + } + + DefineTypeSize("__SCHAR_MAX__", TI.getCharWidth(), "", true, Buf); + DefineTypeSize("__SHRT_MAX__", TI.getShortWidth(), "", true, Buf); + DefineTypeSize("__INT_MAX__", TI.getIntWidth(), "", true, Buf); + DefineTypeSize("__LONG_MAX__", TI.getLongWidth(), "L", true, Buf); + DefineTypeSize("__LONG_LONG_MAX__", TI.getLongLongWidth(), "LL", true, Buf); + DefineTypeSize("__WCHAR_MAX__", TI.getWCharWidth(), "", true, Buf); + DefineTypeSize("__INTMAX_MAX__", IntMaxWidth, IntMaxSuffix, true, Buf); + + DefineType("__INTMAX_TYPE__", TI.getIntMaxType(), Buf); + DefineType("__UINTMAX_TYPE__", TI.getUIntMaxType(), Buf); + DefineType("__PTRDIFF_TYPE__", TI.getPtrDiffType(0), Buf); + DefineType("__INTPTR_TYPE__", TI.getIntPtrType(), Buf); + DefineType("__SIZE_TYPE__", TI.getSizeType(), Buf); + DefineType("__WCHAR_TYPE__", TI.getWCharType(), Buf); + // FIXME: TargetInfo hookize __WINT_TYPE__. + DefineBuiltinMacro(Buf, "__WINT_TYPE__=int"); + + DefineFloatMacros(Buf, "FLT", &TI.getFloatFormat()); + DefineFloatMacros(Buf, "DBL", &TI.getDoubleFormat()); + DefineFloatMacros(Buf, "LDBL", &TI.getLongDoubleFormat()); + + // Define a __POINTER_WIDTH__ macro for stdint.h. + sprintf(MacroBuf, "__POINTER_WIDTH__=%d", (int)TI.getPointerWidth(0)); + DefineBuiltinMacro(Buf, MacroBuf); + + if (!TI.isCharSigned()) + DefineBuiltinMacro(Buf, "__CHAR_UNSIGNED__"); + + // Define fixed-sized integer types for stdint.h + assert(TI.getCharWidth() == 8 && "unsupported target types"); + assert(TI.getShortWidth() == 16 && "unsupported target types"); + DefineBuiltinMacro(Buf, "__INT8_TYPE__=char"); + DefineBuiltinMacro(Buf, "__INT16_TYPE__=short"); + + if (TI.getIntWidth() == 32) + DefineBuiltinMacro(Buf, "__INT32_TYPE__=int"); + else { + assert(TI.getLongLongWidth() == 32 && "unsupported target types"); + DefineBuiltinMacro(Buf, "__INT32_TYPE__=long long"); + } + + // 16-bit targets doesn't necessarily have a 64-bit type. + if (TI.getLongLongWidth() == 64) + DefineBuiltinMacro(Buf, "__INT64_TYPE__=long long"); + + // Add __builtin_va_list typedef. + { + const char *VAList = TI.getVAListDeclaration(); + Buf.insert(Buf.end(), VAList, VAList+strlen(VAList)); + Buf.push_back('\n'); + } + + if (const char *Prefix = TI.getUserLabelPrefix()) { + sprintf(MacroBuf, "__USER_LABEL_PREFIX__=%s", Prefix); + DefineBuiltinMacro(Buf, MacroBuf); + } + + // Build configuration options. FIXME: these should be controlled by + // command line options or something. + DefineBuiltinMacro(Buf, "__FINITE_MATH_ONLY__=0"); + + if (LangOpts.Static) + DefineBuiltinMacro(Buf, "__STATIC__=1"); + else + DefineBuiltinMacro(Buf, "__DYNAMIC__=1"); + + if (LangOpts.GNUInline) + DefineBuiltinMacro(Buf, "__GNUC_GNU_INLINE__=1"); + else + DefineBuiltinMacro(Buf, "__GNUC_STDC_INLINE__=1"); + + if (LangOpts.NoInline) + DefineBuiltinMacro(Buf, "__NO_INLINE__=1"); + + if (unsigned PICLevel = LangOpts.PICLevel) { + sprintf(MacroBuf, "__PIC__=%d", PICLevel); + DefineBuiltinMacro(Buf, MacroBuf); + + sprintf(MacroBuf, "__pic__=%d", PICLevel); + DefineBuiltinMacro(Buf, MacroBuf); + } + + // Macros to control C99 numerics and + DefineBuiltinMacro(Buf, "__FLT_EVAL_METHOD__=0"); + DefineBuiltinMacro(Buf, "__FLT_RADIX__=2"); + sprintf(MacroBuf, "__DECIMAL_DIG__=%d", + PickFP(&TI.getLongDoubleFormat(), -1/*FIXME*/, 17, 21, 33)); + DefineBuiltinMacro(Buf, MacroBuf); + + // Get other target #defines. + TI.getTargetDefines(LangOpts, Buf); +} + +/// InitializePreprocessor - Initialize the preprocessor getting it and the +/// environment ready to process a single file. This returns true on error. +/// +bool InitializePreprocessor(Preprocessor &PP, + const std::string &InFile, + const PreprocessorInitOptions& InitOpts) { + std::vector PredefineBuffer; + + // Install things like __POWERPC__, __GNUC__, etc into the macro table. + InitializePredefinedMacros(PP.getTargetInfo(), PP.getLangOptions(), + PredefineBuffer); + + // Add on the predefines from the driver. Wrap in a #line directive to report + // that they come from the command line. + const char *LineDirective = "# 1 \"\" 1\n"; + PredefineBuffer.insert(PredefineBuffer.end(), + LineDirective, LineDirective+strlen(LineDirective)); + + // Process #define's and #undef's in the order they are given. + for (PreprocessorInitOptions::macro_iterator I = InitOpts.macro_begin(), + E = InitOpts.macro_end(); I != E; ++I) { + bool isUndef = I->second; + if (isUndef) + DefineBuiltinMacro(PredefineBuffer, I->first.c_str()); + else + DefineBuiltinMacro(PredefineBuffer, I->first.c_str(), "#undef "); + } + + // If -imacros are specified, include them now. These are processed before + // any -include directives. + for (PreprocessorInitOptions::imacro_iterator I = InitOpts.imacro_begin(), + E = InitOpts.imacro_end(); I != E; ++I) + AddImplicitIncludeMacros(PredefineBuffer, *I); + + // Process -include directives. + for (PreprocessorInitOptions::include_iterator I = InitOpts.include_begin(), + E = InitOpts.include_end(); I != E; ++I) { + bool isPTH = I->second; + if (isPTH) { + AddImplicitInclude(PredefineBuffer, I->first); + } else { + AddImplicitIncludePTH(PredefineBuffer, PP, I->first); + } + } + + LineDirective = "# 2 \"\" 2\n"; + PredefineBuffer.insert(PredefineBuffer.end(), + LineDirective, LineDirective+strlen(LineDirective)); + + // Null terminate PredefinedBuffer and add it. + PredefineBuffer.push_back(0); + PP.setPredefines(&PredefineBuffer[0]); + + // Once we've read this, we're done. + return false; +} + +} // namespace clang diff --git a/tools/clang-cc/clang-cc.cpp b/tools/clang-cc/clang-cc.cpp index cc4c0615b1..4f2ab2b746 100644 --- a/tools/clang-cc/clang-cc.cpp +++ b/tools/clang-cc/clang-cc.cpp @@ -28,6 +28,7 @@ #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" @@ -1030,425 +1031,9 @@ static std::string CreateTargetTriple() { } //===----------------------------------------------------------------------===// -// Preprocessor Initialization +// SourceManager initialization. //===----------------------------------------------------------------------===// -// FIXME: Preprocessor builtins to support. -// -A... - Play with #assertions -// -undef - Undefine all predefined macros - -// FIXME: -imacros - -static llvm::cl::list -D_macros("D", llvm::cl::value_desc("macro"), llvm::cl::Prefix, - llvm::cl::desc("Predefine the specified macro")); -static llvm::cl::list -U_macros("U", llvm::cl::value_desc("macro"), llvm::cl::Prefix, - llvm::cl::desc("Undefine the specified macro")); - -static llvm::cl::list -ImplicitIncludes("include", llvm::cl::value_desc("file"), - llvm::cl::desc("Include file before parsing")); -static llvm::cl::list -ImplicitMacroIncludes("imacros", llvm::cl::value_desc("file"), - llvm::cl::desc("Include macros from file before parsing")); - -static llvm::cl::opt -ImplicitIncludePTH("include-pth", llvm::cl::value_desc("file"), - llvm::cl::desc("Include file before parsing")); - -static llvm::cl::opt -ImplicitIncludePCH("include-pch", llvm::cl::value_desc("file"), - llvm::cl::desc("Include precompiled header file")); - -// Append a #define line to Buf for Macro. Macro should be of the form XXX, -// in which case we emit "#define XXX 1" or "XXX=Y z W" in which case we emit -// "#define XXX Y z W". To get a #define with no value, use "XXX=". -static void DefineBuiltinMacro(std::vector &Buf, const char *Macro, - const char *Command = "#define ") { - Buf.insert(Buf.end(), Command, Command+strlen(Command)); - if (const char *Equal = strchr(Macro, '=')) { - // Turn the = into ' '. - Buf.insert(Buf.end(), Macro, Equal); - Buf.push_back(' '); - - // Per GCC -D semantics, the macro ends at \n if it exists. - const char *End = strpbrk(Equal, "\n\r"); - if (End) { - fprintf(stderr, "warning: macro '%s' contains embedded newline, text " - "after the newline is ignored.\n", - std::string(Macro, Equal).c_str()); - } else { - End = Equal+strlen(Equal); - } - - Buf.insert(Buf.end(), Equal+1, End); - } else { - // Push "macroname 1". - Buf.insert(Buf.end(), Macro, Macro+strlen(Macro)); - Buf.push_back(' '); - Buf.push_back('1'); - } - Buf.push_back('\n'); -} - -/// Add the quoted name of an implicit include file. -static void AddQuotedIncludePath(std::vector &Buf, - const std::string &File) { - // Implicit include paths are relative to the current working - // directory; resolve them now instead of using the normal machinery - // (which would look relative to the input file). - llvm::sys::Path Path(File); - Path.makeAbsolute(); - - // Escape double quotes etc. - Buf.push_back('"'); - std::string EscapedFile = Lexer::Stringify(Path.toString()); - Buf.insert(Buf.end(), EscapedFile.begin(), EscapedFile.end()); - Buf.push_back('"'); -} - -/// AddImplicitInclude - Add an implicit #include of the specified file to the -/// predefines buffer. -static void AddImplicitInclude(std::vector &Buf, - const std::string &File) { - const char *Inc = "#include "; - Buf.insert(Buf.end(), Inc, Inc+strlen(Inc)); - AddQuotedIncludePath(Buf, File); - Buf.push_back('\n'); -} - -static void AddImplicitIncludeMacros(std::vector &Buf, - const std::string &File) { - const char *Inc = "#__include_macros "; - Buf.insert(Buf.end(), Inc, Inc+strlen(Inc)); - AddQuotedIncludePath(Buf, File); - Buf.push_back('\n'); - // Marker token to stop the __include_macros fetch loop. - const char *Marker = "##\n"; // ##? - Buf.insert(Buf.end(), Marker, Marker+strlen(Marker)); -} - -/// AddImplicitIncludePTH - Add an implicit #include using the original file -/// used to generate a PTH cache. -static void AddImplicitIncludePTH(std::vector &Buf, Preprocessor &PP) { - PTHManager *P = PP.getPTHManager(); - assert(P && "No PTHManager."); - const char *OriginalFile = P->getOriginalSourceFile(); - - if (!OriginalFile) { - assert(!ImplicitIncludePTH.empty()); - fprintf(stderr, "error: PTH file '%s' does not designate an original " - "source header file for -include-pth\n", - ImplicitIncludePTH.c_str()); - exit (1); - } - - AddImplicitInclude(Buf, OriginalFile); -} - -/// PickFP - This is used to pick a value based on the FP semantics of the -/// specified FP model. -template -static T PickFP(const llvm::fltSemantics *Sem, T IEEESingleVal, - T IEEEDoubleVal, T X87DoubleExtendedVal, T PPCDoubleDoubleVal) { - if (Sem == &llvm::APFloat::IEEEsingle) - return IEEESingleVal; - if (Sem == &llvm::APFloat::IEEEdouble) - return IEEEDoubleVal; - if (Sem == &llvm::APFloat::x87DoubleExtended) - return X87DoubleExtendedVal; - assert(Sem == &llvm::APFloat::PPCDoubleDouble); - return PPCDoubleDoubleVal; -} - -static void DefineFloatMacros(std::vector &Buf, const char *Prefix, - const llvm::fltSemantics *Sem) { - const char *DenormMin, *Epsilon, *Max, *Min; - DenormMin = PickFP(Sem, "1.40129846e-45F", "4.9406564584124654e-324", - "3.64519953188247460253e-4951L", - "4.94065645841246544176568792868221e-324L"); - int Digits = PickFP(Sem, 6, 15, 18, 31); - Epsilon = PickFP(Sem, "1.19209290e-7F", "2.2204460492503131e-16", - "1.08420217248550443401e-19L", - "4.94065645841246544176568792868221e-324L"); - int HasInifinity = 1, HasQuietNaN = 1; - int MantissaDigits = PickFP(Sem, 24, 53, 64, 106); - int Min10Exp = PickFP(Sem, -37, -307, -4931, -291); - int Max10Exp = PickFP(Sem, 38, 308, 4932, 308); - int MinExp = PickFP(Sem, -125, -1021, -16381, -968); - int MaxExp = PickFP(Sem, 128, 1024, 16384, 1024); - Min = PickFP(Sem, "1.17549435e-38F", "2.2250738585072014e-308", - "3.36210314311209350626e-4932L", - "2.00416836000897277799610805135016e-292L"); - Max = PickFP(Sem, "3.40282347e+38F", "1.7976931348623157e+308", - "1.18973149535723176502e+4932L", - "1.79769313486231580793728971405301e+308L"); - - char MacroBuf[60]; - sprintf(MacroBuf, "__%s_DENORM_MIN__=%s", Prefix, DenormMin); - DefineBuiltinMacro(Buf, MacroBuf); - sprintf(MacroBuf, "__%s_DIG__=%d", Prefix, Digits); - DefineBuiltinMacro(Buf, MacroBuf); - sprintf(MacroBuf, "__%s_EPSILON__=%s", Prefix, Epsilon); - DefineBuiltinMacro(Buf, MacroBuf); - sprintf(MacroBuf, "__%s_HAS_INFINITY__=%d", Prefix, HasInifinity); - DefineBuiltinMacro(Buf, MacroBuf); - sprintf(MacroBuf, "__%s_HAS_QUIET_NAN__=%d", Prefix, HasQuietNaN); - DefineBuiltinMacro(Buf, MacroBuf); - sprintf(MacroBuf, "__%s_MANT_DIG__=%d", Prefix, MantissaDigits); - DefineBuiltinMacro(Buf, MacroBuf); - sprintf(MacroBuf, "__%s_MAX_10_EXP__=%d", Prefix, Max10Exp); - DefineBuiltinMacro(Buf, MacroBuf); - sprintf(MacroBuf, "__%s_MAX_EXP__=%d", Prefix, MaxExp); - DefineBuiltinMacro(Buf, MacroBuf); - sprintf(MacroBuf, "__%s_MAX__=%s", Prefix, Max); - DefineBuiltinMacro(Buf, MacroBuf); - sprintf(MacroBuf, "__%s_MIN_10_EXP__=(%d)", Prefix, Min10Exp); - DefineBuiltinMacro(Buf, MacroBuf); - sprintf(MacroBuf, "__%s_MIN_EXP__=(%d)", Prefix, MinExp); - DefineBuiltinMacro(Buf, MacroBuf); - sprintf(MacroBuf, "__%s_MIN__=%s", Prefix, Min); - DefineBuiltinMacro(Buf, MacroBuf); - sprintf(MacroBuf, "__%s_HAS_DENORM__=1", Prefix); - DefineBuiltinMacro(Buf, MacroBuf); -} - - -/// DefineTypeSize - Emit a macro to the predefines buffer that declares a macro -/// named MacroName with the max value for a type with width 'TypeWidth' a -/// signedness of 'isSigned' and with a value suffix of 'ValSuffix' (e.g. LL). -static void DefineTypeSize(const char *MacroName, unsigned TypeWidth, - const char *ValSuffix, bool isSigned, - std::vector &Buf) { - char MacroBuf[60]; - long long MaxVal; - if (isSigned) - MaxVal = (1LL << (TypeWidth - 1)) - 1; - else - MaxVal = ~0LL >> (64-TypeWidth); - - sprintf(MacroBuf, "%s=%llu%s", MacroName, MaxVal, ValSuffix); - DefineBuiltinMacro(Buf, MacroBuf); -} - -static void DefineType(const char *MacroName, TargetInfo::IntType Ty, - std::vector &Buf) { - char MacroBuf[60]; - sprintf(MacroBuf, "%s=%s", MacroName, TargetInfo::getTypeName(Ty)); - DefineBuiltinMacro(Buf, MacroBuf); -} - - -static void InitializePredefinedMacros(const TargetInfo &TI, - const LangOptions &LangOpts, - std::vector &Buf) { - char MacroBuf[60]; - // Compiler version introspection macros. - DefineBuiltinMacro(Buf, "__llvm__=1"); // LLVM Backend - DefineBuiltinMacro(Buf, "__clang__=1"); // Clang Frontend - - // Currently claim to be compatible with GCC 4.2.1-5621. - DefineBuiltinMacro(Buf, "__APPLE_CC__=5621"); - DefineBuiltinMacro(Buf, "__GNUC_MINOR__=2"); - DefineBuiltinMacro(Buf, "__GNUC_PATCHLEVEL__=1"); - DefineBuiltinMacro(Buf, "__GNUC__=4"); - DefineBuiltinMacro(Buf, "__GXX_ABI_VERSION=1002"); - DefineBuiltinMacro(Buf, "__VERSION__=\"4.2.1 Compatible Clang Compiler\""); - - - // Initialize language-specific preprocessor defines. - - // These should all be defined in the preprocessor according to the - // current language configuration. - if (!LangOpts.Microsoft) - DefineBuiltinMacro(Buf, "__STDC__=1"); - if (LangOpts.AsmPreprocessor) - DefineBuiltinMacro(Buf, "__ASSEMBLER__=1"); - if (LangOpts.C99 && !LangOpts.CPlusPlus) - DefineBuiltinMacro(Buf, "__STDC_VERSION__=199901L"); - else if (0) // STDC94 ? - DefineBuiltinMacro(Buf, "__STDC_VERSION__=199409L"); - - // Standard conforming mode? - if (!LangOpts.GNUMode) - DefineBuiltinMacro(Buf, "__STRICT_ANSI__=1"); - - if (LangOpts.CPlusPlus0x) - DefineBuiltinMacro(Buf, "__GXX_EXPERIMENTAL_CXX0X__"); - - if (LangOpts.Freestanding) - DefineBuiltinMacro(Buf, "__STDC_HOSTED__=0"); - else - DefineBuiltinMacro(Buf, "__STDC_HOSTED__=1"); - - if (LangOpts.ObjC1) { - DefineBuiltinMacro(Buf, "__OBJC__=1"); - if (LangOpts.ObjCNonFragileABI) { - DefineBuiltinMacro(Buf, "__OBJC2__=1"); - DefineBuiltinMacro(Buf, "OBJC_ZEROCOST_EXCEPTIONS=1"); - DefineBuiltinMacro(Buf, "__EXCEPTIONS=1"); - } - - if (LangOpts.getGCMode() != LangOptions::NonGC) - DefineBuiltinMacro(Buf, "__OBJC_GC__=1"); - - if (LangOpts.NeXTRuntime) - DefineBuiltinMacro(Buf, "__NEXT_RUNTIME__=1"); - } - - // darwin_constant_cfstrings controls this. This is also dependent - // on other things like the runtime I believe. This is set even for C code. - DefineBuiltinMacro(Buf, "__CONSTANT_CFSTRINGS__=1"); - - if (LangOpts.ObjC2) - DefineBuiltinMacro(Buf, "OBJC_NEW_PROPERTIES"); - - if (LangOpts.PascalStrings) - DefineBuiltinMacro(Buf, "__PASCAL_STRINGS__"); - - if (LangOpts.Blocks) { - DefineBuiltinMacro(Buf, "__block=__attribute__((__blocks__(byref)))"); - DefineBuiltinMacro(Buf, "__BLOCKS__=1"); - } - - if (LangOpts.CPlusPlus) { - DefineBuiltinMacro(Buf, "__DEPRECATED=1"); - DefineBuiltinMacro(Buf, "__EXCEPTIONS=1"); - DefineBuiltinMacro(Buf, "__GNUG__=4"); - DefineBuiltinMacro(Buf, "__GXX_WEAK__=1"); - DefineBuiltinMacro(Buf, "__cplusplus=1"); - DefineBuiltinMacro(Buf, "__private_extern__=extern"); - } - - // Filter out some microsoft extensions when trying to parse in ms-compat - // mode. - if (LangOpts.Microsoft) { - DefineBuiltinMacro(Buf, "_cdecl=__cdecl"); - DefineBuiltinMacro(Buf, "__int8=__INT8_TYPE__"); - DefineBuiltinMacro(Buf, "__int16=__INT16_TYPE__"); - DefineBuiltinMacro(Buf, "__int32=__INT32_TYPE__"); - DefineBuiltinMacro(Buf, "__int64=__INT64_TYPE__"); - } - - if (LangOpts.Optimize) - DefineBuiltinMacro(Buf, "__OPTIMIZE__=1"); - if (LangOpts.OptimizeSize) - DefineBuiltinMacro(Buf, "__OPTIMIZE_SIZE__=1"); - - // Initialize target-specific preprocessor defines. - - // Define type sizing macros based on the target properties. - assert(TI.getCharWidth() == 8 && "Only support 8-bit char so far"); - DefineBuiltinMacro(Buf, "__CHAR_BIT__=8"); - - unsigned IntMaxWidth; - const char *IntMaxSuffix; - if (TI.getIntMaxType() == TargetInfo::SignedLongLong) { - IntMaxWidth = TI.getLongLongWidth(); - IntMaxSuffix = "LL"; - } else if (TI.getIntMaxType() == TargetInfo::SignedLong) { - IntMaxWidth = TI.getLongWidth(); - IntMaxSuffix = "L"; - } else { - assert(TI.getIntMaxType() == TargetInfo::SignedInt); - IntMaxWidth = TI.getIntWidth(); - IntMaxSuffix = ""; - } - - DefineTypeSize("__SCHAR_MAX__", TI.getCharWidth(), "", true, Buf); - DefineTypeSize("__SHRT_MAX__", TI.getShortWidth(), "", true, Buf); - DefineTypeSize("__INT_MAX__", TI.getIntWidth(), "", true, Buf); - DefineTypeSize("__LONG_MAX__", TI.getLongWidth(), "L", true, Buf); - DefineTypeSize("__LONG_LONG_MAX__", TI.getLongLongWidth(), "LL", true, Buf); - DefineTypeSize("__WCHAR_MAX__", TI.getWCharWidth(), "", true, Buf); - DefineTypeSize("__INTMAX_MAX__", IntMaxWidth, IntMaxSuffix, true, Buf); - - DefineType("__INTMAX_TYPE__", TI.getIntMaxType(), Buf); - DefineType("__UINTMAX_TYPE__", TI.getUIntMaxType(), Buf); - DefineType("__PTRDIFF_TYPE__", TI.getPtrDiffType(0), Buf); - DefineType("__INTPTR_TYPE__", TI.getIntPtrType(), Buf); - DefineType("__SIZE_TYPE__", TI.getSizeType(), Buf); - DefineType("__WCHAR_TYPE__", TI.getWCharType(), Buf); - // FIXME: TargetInfo hookize __WINT_TYPE__. - DefineBuiltinMacro(Buf, "__WINT_TYPE__=int"); - - DefineFloatMacros(Buf, "FLT", &TI.getFloatFormat()); - DefineFloatMacros(Buf, "DBL", &TI.getDoubleFormat()); - DefineFloatMacros(Buf, "LDBL", &TI.getLongDoubleFormat()); - - // Define a __POINTER_WIDTH__ macro for stdint.h. - sprintf(MacroBuf, "__POINTER_WIDTH__=%d", (int)TI.getPointerWidth(0)); - DefineBuiltinMacro(Buf, MacroBuf); - - if (!TI.isCharSigned()) - DefineBuiltinMacro(Buf, "__CHAR_UNSIGNED__"); - - // Define fixed-sized integer types for stdint.h - assert(TI.getCharWidth() == 8 && "unsupported target types"); - assert(TI.getShortWidth() == 16 && "unsupported target types"); - DefineBuiltinMacro(Buf, "__INT8_TYPE__=char"); - DefineBuiltinMacro(Buf, "__INT16_TYPE__=short"); - - if (TI.getIntWidth() == 32) - DefineBuiltinMacro(Buf, "__INT32_TYPE__=int"); - else { - assert(TI.getLongLongWidth() == 32 && "unsupported target types"); - DefineBuiltinMacro(Buf, "__INT32_TYPE__=long long"); - } - - // 16-bit targets doesn't necessarily have a 64-bit type. - if (TI.getLongLongWidth() == 64) - DefineBuiltinMacro(Buf, "__INT64_TYPE__=long long"); - - // Add __builtin_va_list typedef. - { - const char *VAList = TI.getVAListDeclaration(); - Buf.insert(Buf.end(), VAList, VAList+strlen(VAList)); - Buf.push_back('\n'); - } - - if (const char *Prefix = TI.getUserLabelPrefix()) { - sprintf(MacroBuf, "__USER_LABEL_PREFIX__=%s", Prefix); - DefineBuiltinMacro(Buf, MacroBuf); - } - - // Build configuration options. FIXME: these should be controlled by - // command line options or something. - DefineBuiltinMacro(Buf, "__FINITE_MATH_ONLY__=0"); - - if (LangOpts.Static) - DefineBuiltinMacro(Buf, "__STATIC__=1"); - else - DefineBuiltinMacro(Buf, "__DYNAMIC__=1"); - - if (LangOpts.GNUInline) - DefineBuiltinMacro(Buf, "__GNUC_GNU_INLINE__=1"); - else - DefineBuiltinMacro(Buf, "__GNUC_STDC_INLINE__=1"); - - if (LangOpts.NoInline) - DefineBuiltinMacro(Buf, "__NO_INLINE__=1"); - - if (unsigned PICLevel = LangOpts.PICLevel) { - sprintf(MacroBuf, "__PIC__=%d", PICLevel); - DefineBuiltinMacro(Buf, MacroBuf); - - sprintf(MacroBuf, "__pic__=%d", PICLevel); - DefineBuiltinMacro(Buf, MacroBuf); - } - - // Macros to control C99 numerics and - DefineBuiltinMacro(Buf, "__FLT_EVAL_METHOD__=0"); - DefineBuiltinMacro(Buf, "__FLT_RADIX__=2"); - sprintf(MacroBuf, "__DECIMAL_DIG__=%d", - PickFP(&TI.getLongDoubleFormat(), -1/*FIXME*/, 17, 21, 33)); - DefineBuiltinMacro(Buf, MacroBuf); - - // Get other target #defines. - TI.getTargetDefines(LangOpts, Buf); -} - static bool InitializeSourceManager(Preprocessor &PP, const std::string &InFile) { // Figure out where to get and map in the main file. @@ -1484,78 +1069,37 @@ static bool InitializeSourceManager(Preprocessor &PP, return false; } -/// InitializePreprocessor - Initialize the preprocessor getting it and the -/// environment ready to process a single file. This returns true on error. -/// -static bool InitializePreprocessor(Preprocessor &PP, - const std::string &InFile) { - std::vector PredefineBuffer; - - // Install things like __POWERPC__, __GNUC__, etc into the macro table. - InitializePredefinedMacros(PP.getTargetInfo(), PP.getLangOptions(), - PredefineBuffer); - - // Add on the predefines from the driver. Wrap in a #line directive to report - // that they come from the command line. - const char *LineDirective = "# 1 \"\" 1\n"; - PredefineBuffer.insert(PredefineBuffer.end(), - LineDirective, LineDirective+strlen(LineDirective)); - - // 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))) - DefineBuiltinMacro(PredefineBuffer, D_macros[d++].c_str()); - else - DefineBuiltinMacro(PredefineBuffer, U_macros[u++].c_str(), "#undef "); - } +//===----------------------------------------------------------------------===// +// Preprocessor Initialization +//===----------------------------------------------------------------------===// - // If -imacros are specified, include them now. These are processed before - // any -include directives. +// FIXME: Preprocessor builtins to support. +// -A... - Play with #assertions +// -undef - Undefine all predefined macros - for (unsigned i = 0, e = ImplicitMacroIncludes.size(); i != e; ++i) - AddImplicitIncludeMacros(PredefineBuffer, ImplicitMacroIncludes[i]); - - if (!ImplicitIncludePTH.empty() || !ImplicitIncludes.empty()) { - // We want to add these paths to the predefines buffer in order, make a - // temporary vector to sort by their occurrence. - llvm::SmallVector, 8> OrderedPaths; +static llvm::cl::list +D_macros("D", llvm::cl::value_desc("macro"), llvm::cl::Prefix, + llvm::cl::desc("Predefine the specified macro")); +static llvm::cl::list +U_macros("U", llvm::cl::value_desc("macro"), llvm::cl::Prefix, + llvm::cl::desc("Undefine the specified macro")); - if (!ImplicitIncludePTH.empty()) - OrderedPaths.push_back(std::make_pair(ImplicitIncludePTH.getPosition(), - &ImplicitIncludePTH)); - 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()); +static llvm::cl::list +ImplicitIncludes("include", llvm::cl::value_desc("file"), + llvm::cl::desc("Include file before parsing")); +static llvm::cl::list +ImplicitMacroIncludes("imacros", llvm::cl::value_desc("file"), + llvm::cl::desc("Include macros from file before parsing")); + +static llvm::cl::opt +ImplicitIncludePCH("include-pch", llvm::cl::value_desc("file"), + llvm::cl::desc("Include precompiled header file")); + +static llvm::cl::opt +ImplicitIncludePTH("include-pth", llvm::cl::value_desc("file"), + llvm::cl::desc("Include file before parsing")); - // 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]) { - AddImplicitInclude(PredefineBuffer, *Ptr); - } else { - assert(Ptr == &ImplicitIncludePTH); - AddImplicitIncludePTH(PredefineBuffer, PP); - } - } - } - - LineDirective = "# 2 \"\" 2\n"; - PredefineBuffer.insert(PredefineBuffer.end(), - LineDirective, LineDirective+strlen(LineDirective)); - - // Null terminate PredefinedBuffer and add it. - PredefineBuffer.push_back(0); - PP.setPredefines(&PredefineBuffer[0]); - - // Once we've read this, we're done. - return false; -} //===----------------------------------------------------------------------===// // Preprocessor include path information. @@ -1717,6 +1261,52 @@ void InitializeIncludePaths(const char *Argv0, HeaderSearch &Headers, Init.Realize(); } +void InitializePreprocessorInitOptions(PreprocessorInitOptions &InitOpts) +{ + // 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()) { + // We want to add these paths to the predefines buffer in order, make a + // temporary vector to sort by their occurrence. + llvm::SmallVector, 8> OrderedPaths; + + if (!ImplicitIncludePTH.empty()) + OrderedPaths.push_back(std::make_pair(ImplicitIncludePTH.getPosition(), + &ImplicitIncludePTH)); + 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 { + assert(Ptr == &ImplicitIncludePTH); + InitOpts.addInclude(*Ptr, true); + } + } + } +} + //===----------------------------------------------------------------------===// // Driver PreprocessorFactory - For lazily generating preprocessors ... //===----------------------------------------------------------------------===// @@ -1774,9 +1364,11 @@ public: PP->setPTHManager(PTHMgr.take()); } - if (InitializePreprocessor(*PP, InFile)) + PreprocessorInitOptions InitOpts; + InitializePreprocessorInitOptions(InitOpts); + if (InitializePreprocessor(*PP, InFile, InitOpts)) return 0; - + /// FIXME: PP can only handle one callback if (ProgAction != PrintPreprocessedInput) { std::string ErrStr; -- 2.40.0