forked from OSchip/llvm-project
Rework InitPreprocessor to use a MacroBuilder class instead of pushing around
std::vectors. - MacroBuilder wraps a raw_ostream so it can easily write to any buffer supported by raw_ostream. - MacroBuilder's method take Twines for easy string concatenation (this was done with sprintf and temporary buffers before). - Targets still use std::vector as they don't have access to the builder. llvm-svn: 93051
This commit is contained in:
Benjamin Kramer
parent
e8ed5be89f
commit
f65e959035
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@ -18,57 +18,70 @@
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#include "clang/Lex/Preprocessor.h"
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#include "clang/Basic/FileManager.h"
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#include "clang/Basic/SourceManager.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/ADT/StringMap.h"
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#include "llvm/ADT/APFloat.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/ADT/Twine.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/raw_ostream.h"
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#include "llvm/System/Path.h"
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using namespace clang;
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namespace {
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class MacroBuilder {
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llvm::raw_ostream &Out;
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public:
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MacroBuilder(llvm::raw_ostream &Output) : Out(Output) {}
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/// Append a #define line for Macro of the form "#define Name 1\n".
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void DefineMacro(const llvm::Twine &Name) {
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Out << "#define " << Name << " 1\n";
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}
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/// Append a #define line for Macro of the form "#define Name Value\n".
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void DefineMacro(const llvm::Twine &Name, const llvm::Twine &Value) {
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Out << "#define " << Name << ' ' << Value << '\n';
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}
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/// Append a #undef line for Macro. Macro should be of the form XXX
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/// and we emit "#undef XXX".
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void UndefineMacro(const llvm::Twine &Name) {
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Out << "#undef " << Name << '\n';
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}
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/// Directly append Str and a newline to the underlying buffer.
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void Append(const llvm::Twine& Str) {
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Out << Str << '\n';
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}
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// FIXME: deprecated
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void AppendVector(const std::vector<char> &v) {
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Out << llvm::StringRef(&v[0], v.size());
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}
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};
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} // end anonymous namespace
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// Append a #define line to Buf for Macro. Macro should be of the form XXX,
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// in which case we emit "#define XXX 1" or "XXX=Y z W" in which case we emit
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// "#define XXX Y z W". To get a #define with no value, use "XXX=".
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static void DefineBuiltinMacro(std::vector<char> &Buf, llvm::StringRef Macro,
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static void DefineBuiltinMacro(MacroBuilder &Builder, llvm::StringRef Macro,
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Diagnostic *Diags = 0) {
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const char Command[] = "#define ";
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Buf.insert(Buf.end(), Command, Command+strlen(Command));
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std::pair<llvm::StringRef, llvm::StringRef> MacroPair = Macro.split('=');
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llvm::StringRef MacroName = MacroPair.first;
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llvm::StringRef MacroBody = MacroPair.second;
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if (!MacroBody.empty()) {
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// Turn the = into ' '.
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Buf.insert(Buf.end(), MacroName.begin(), MacroName.end());
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Buf.push_back(' ');
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// Per GCC -D semantics, the macro ends at \n if it exists.
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const char *End = strpbrk(MacroBody.data(), "\n\r");
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if (End) {
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llvm::StringRef::size_type End = MacroBody.find_first_of("\n\r");
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if (End != llvm::StringRef::npos) {
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assert(Diags && "Unexpected macro with embedded newline!");
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Diags->Report(diag::warn_fe_macro_contains_embedded_newline)
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<< MacroName;
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} else {
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End = MacroBody.end();
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}
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Buf.insert(Buf.end(), MacroBody.begin(), End);
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Builder.DefineMacro(MacroName, MacroBody.substr(0, End));
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} else {
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// Push "macroname 1".
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Buf.insert(Buf.end(), Macro.begin(), Macro.end());
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Buf.push_back(' ');
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Buf.push_back('1');
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Builder.DefineMacro(Macro);
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}
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Buf.push_back('\n');
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}
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// Append a #undef line to Buf for Macro. Macro should be of the form XXX
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// and we emit "#undef XXX".
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static void UndefineBuiltinMacro(std::vector<char> &Buf, llvm::StringRef Macro) {
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// Push "macroname".
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const char Command[] = "#undef ";
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Buf.insert(Buf.end(), Command, Command+strlen(Command));
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Buf.insert(Buf.end(), Macro.begin(), Macro.end());
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Buf.push_back('\n');
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}
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std::string clang::NormalizeDashIncludePath(llvm::StringRef File) {
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@ -87,42 +100,25 @@ std::string clang::NormalizeDashIncludePath(llvm::StringRef File) {
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return Lexer::Stringify(Path.str());
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}
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/// Add the quoted name of an implicit include file.
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static void AddQuotedIncludePath(std::vector<char> &Buf,
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const std::string &File) {
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// Escape double quotes etc.
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Buf.push_back('"');
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std::string EscapedFile = NormalizeDashIncludePath(File);
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Buf.insert(Buf.end(), EscapedFile.begin(), EscapedFile.end());
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Buf.push_back('"');
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}
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/// AddImplicitInclude - Add an implicit #include of the specified file to the
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/// predefines buffer.
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static void AddImplicitInclude(std::vector<char> &Buf,
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const std::string &File) {
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const char Command[] = "#include ";
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Buf.insert(Buf.end(), Command, Command+strlen(Command));
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AddQuotedIncludePath(Buf, File);
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Buf.push_back('\n');
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static void AddImplicitInclude(MacroBuilder &Builder, llvm::StringRef File) {
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Builder.Append("#include \"" +
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llvm::Twine(NormalizeDashIncludePath(File)) + "\"");
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}
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static void AddImplicitIncludeMacros(std::vector<char> &Buf,
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const std::string &File) {
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const char Command[] = "#__include_macros ";
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Buf.insert(Buf.end(), Command, Command+strlen(Command));
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AddQuotedIncludePath(Buf, File);
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Buf.push_back('\n');
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static void AddImplicitIncludeMacros(MacroBuilder &Builder,
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llvm::StringRef File) {
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Builder.Append("#__include_macros \"" +
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llvm::Twine(NormalizeDashIncludePath(File)) + "\"");
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// Marker token to stop the __include_macros fetch loop.
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const char *Marker = "##\n"; // ##?
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Buf.insert(Buf.end(), Marker, Marker+strlen(Marker));
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Builder.Append("##"); // ##?
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}
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/// AddImplicitIncludePTH - Add an implicit #include using the original file
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/// used to generate a PTH cache.
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static void AddImplicitIncludePTH(std::vector<char> &Buf, Preprocessor &PP,
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const std::string& ImplicitIncludePTH) {
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static void AddImplicitIncludePTH(MacroBuilder &Builder, Preprocessor &PP,
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llvm::StringRef ImplicitIncludePTH) {
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PTHManager *P = PP.getPTHManager();
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assert(P && "No PTHManager.");
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const char *OriginalFile = P->getOriginalSourceFile();
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@ -133,7 +129,7 @@ static void AddImplicitIncludePTH(std::vector<char> &Buf, Preprocessor &PP,
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return;
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}
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AddImplicitInclude(Buf, OriginalFile);
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AddImplicitInclude(Builder, OriginalFile);
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}
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/// PickFP - This is used to pick a value based on the FP semantics of the
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@ -154,7 +150,7 @@ static T PickFP(const llvm::fltSemantics *Sem, T IEEESingleVal,
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return IEEEQuadVal;
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}
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static void DefineFloatMacros(std::vector<char> &Buf, const char *Prefix,
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static void DefineFloatMacros(MacroBuilder &Builder, llvm::StringRef Prefix,
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const llvm::fltSemantics *Sem) {
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const char *DenormMin, *Epsilon, *Max, *Min;
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DenormMin = PickFP(Sem, "1.40129846e-45F", "4.9406564584124654e-324",
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@ -166,7 +162,6 @@ static void DefineFloatMacros(std::vector<char> &Buf, const char *Prefix,
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"1.08420217248550443401e-19L",
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"4.94065645841246544176568792868221e-324L",
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"1.92592994438723585305597794258492732e-34L");
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int HasInifinity = 1, HasQuietNaN = 1;
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int MantissaDigits = PickFP(Sem, 24, 53, 64, 106, 113);
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int Min10Exp = PickFP(Sem, -37, -307, -4931, -291, -4931);
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int Max10Exp = PickFP(Sem, 38, 308, 4932, 308, 4932);
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@ -181,312 +176,281 @@ static void DefineFloatMacros(std::vector<char> &Buf, const char *Prefix,
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"1.79769313486231580793728971405301e+308L",
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"1.18973149535723176508575932662800702e+4932L");
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char MacroBuf[100];
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sprintf(MacroBuf, "__%s_DENORM_MIN__=%s", Prefix, DenormMin);
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DefineBuiltinMacro(Buf, MacroBuf);
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sprintf(MacroBuf, "__%s_DIG__=%d", Prefix, Digits);
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DefineBuiltinMacro(Buf, MacroBuf);
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sprintf(MacroBuf, "__%s_EPSILON__=%s", Prefix, Epsilon);
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DefineBuiltinMacro(Buf, MacroBuf);
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sprintf(MacroBuf, "__%s_HAS_INFINITY__=%d", Prefix, HasInifinity);
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DefineBuiltinMacro(Buf, MacroBuf);
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sprintf(MacroBuf, "__%s_HAS_QUIET_NAN__=%d", Prefix, HasQuietNaN);
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DefineBuiltinMacro(Buf, MacroBuf);
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sprintf(MacroBuf, "__%s_MANT_DIG__=%d", Prefix, MantissaDigits);
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DefineBuiltinMacro(Buf, MacroBuf);
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sprintf(MacroBuf, "__%s_MAX_10_EXP__=%d", Prefix, Max10Exp);
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DefineBuiltinMacro(Buf, MacroBuf);
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sprintf(MacroBuf, "__%s_MAX_EXP__=%d", Prefix, MaxExp);
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DefineBuiltinMacro(Buf, MacroBuf);
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sprintf(MacroBuf, "__%s_MAX__=%s", Prefix, Max);
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DefineBuiltinMacro(Buf, MacroBuf);
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sprintf(MacroBuf, "__%s_MIN_10_EXP__=(%d)", Prefix, Min10Exp);
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DefineBuiltinMacro(Buf, MacroBuf);
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sprintf(MacroBuf, "__%s_MIN_EXP__=(%d)", Prefix, MinExp);
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DefineBuiltinMacro(Buf, MacroBuf);
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sprintf(MacroBuf, "__%s_MIN__=%s", Prefix, Min);
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DefineBuiltinMacro(Buf, MacroBuf);
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sprintf(MacroBuf, "__%s_HAS_DENORM__=1", Prefix);
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DefineBuiltinMacro(Buf, MacroBuf);
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llvm::Twine DefPrefix = "__" + Prefix + "_";
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Builder.DefineMacro(DefPrefix + "DENORM_MIN__", DenormMin);
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Builder.DefineMacro(DefPrefix + "HAS_DENORM__");
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Builder.DefineMacro(DefPrefix + "DIG__", llvm::Twine(Digits));
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Builder.DefineMacro(DefPrefix + "EPSILON__", llvm::Twine(Epsilon));
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Builder.DefineMacro(DefPrefix + "HAS_INFINITY__");
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Builder.DefineMacro(DefPrefix + "HAS_QUIET_NAN__");
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Builder.DefineMacro(DefPrefix + "MANT_DIG__", llvm::Twine(MantissaDigits));
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Builder.DefineMacro(DefPrefix + "MAX_10_EXP__", llvm::Twine(Max10Exp));
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Builder.DefineMacro(DefPrefix + "MAX_EXP__", llvm::Twine(MaxExp));
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Builder.DefineMacro(DefPrefix + "MAX__", llvm::Twine(Max));
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Builder.DefineMacro(DefPrefix + "MIN_10_EXP__","("+llvm::Twine(Min10Exp)+")");
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Builder.DefineMacro(DefPrefix + "MIN_EXP__", "("+llvm::Twine(MinExp)+")");
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Builder.DefineMacro(DefPrefix + "MIN__", llvm::Twine(Min));
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}
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/// DefineTypeSize - Emit a macro to the predefines buffer that declares a macro
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/// named MacroName with the max value for a type with width 'TypeWidth' a
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/// signedness of 'isSigned' and with a value suffix of 'ValSuffix' (e.g. LL).
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static void DefineTypeSize(const char *MacroName, unsigned TypeWidth,
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const char *ValSuffix, bool isSigned,
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std::vector<char> &Buf) {
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char MacroBuf[60];
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static void DefineTypeSize(llvm::StringRef MacroName, unsigned TypeWidth,
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llvm::StringRef ValSuffix, bool isSigned,
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MacroBuilder& Builder) {
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long long MaxVal;
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if (isSigned)
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MaxVal = (1LL << (TypeWidth - 1)) - 1;
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else
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MaxVal = ~0LL >> (64-TypeWidth);
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// FIXME: Switch to using raw_ostream and avoid utostr().
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sprintf(MacroBuf, "%s=%s%s", MacroName, llvm::utostr(MaxVal).c_str(),
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ValSuffix);
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DefineBuiltinMacro(Buf, MacroBuf);
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Builder.DefineMacro(MacroName, llvm::Twine(MaxVal) + ValSuffix);
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}
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/// DefineTypeSize - An overloaded helper that uses TargetInfo to determine
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/// the width, suffix, and signedness of the given type
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static void DefineTypeSize(const char *MacroName, TargetInfo::IntType Ty,
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const TargetInfo &TI, std::vector<char> &Buf) {
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static void DefineTypeSize(llvm::StringRef MacroName, TargetInfo::IntType Ty,
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const TargetInfo &TI, MacroBuilder &Builder) {
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DefineTypeSize(MacroName, TI.getTypeWidth(Ty), TI.getTypeConstantSuffix(Ty),
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TI.isTypeSigned(Ty), Buf);
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TI.isTypeSigned(Ty), Builder);
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}
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static void DefineType(const char *MacroName, TargetInfo::IntType Ty,
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std::vector<char> &Buf) {
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char MacroBuf[60];
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sprintf(MacroBuf, "%s=%s", MacroName, TargetInfo::getTypeName(Ty));
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DefineBuiltinMacro(Buf, MacroBuf);
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static void DefineType(const llvm::Twine &MacroName, TargetInfo::IntType Ty,
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MacroBuilder &Builder) {
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Builder.DefineMacro(MacroName, TargetInfo::getTypeName(Ty));
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}
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static void DefineTypeWidth(const char *MacroName, TargetInfo::IntType Ty,
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const TargetInfo &TI, std::vector<char> &Buf) {
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char MacroBuf[60];
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sprintf(MacroBuf, "%s=%d", MacroName, TI.getTypeWidth(Ty));
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DefineBuiltinMacro(Buf, MacroBuf);
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static void DefineTypeWidth(llvm::StringRef MacroName, TargetInfo::IntType Ty,
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const TargetInfo &TI, MacroBuilder &Builder) {
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Builder.DefineMacro(MacroName, llvm::Twine(TI.getTypeWidth(Ty)));
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}
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static void DefineExactWidthIntType(TargetInfo::IntType Ty,
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const TargetInfo &TI, std::vector<char> &Buf) {
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char MacroBuf[60];
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const TargetInfo &TI, MacroBuilder &Builder) {
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int TypeWidth = TI.getTypeWidth(Ty);
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sprintf(MacroBuf, "__INT%d_TYPE__", TypeWidth);
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DefineType(MacroBuf, Ty, Buf);
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DefineType("__INT" + llvm::Twine(TypeWidth) + "_TYPE__", Ty, Builder);
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const char *ConstSuffix = TargetInfo::getTypeConstantSuffix(Ty);
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if (strlen(ConstSuffix) > 0) {
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sprintf(MacroBuf, "__INT%d_C_SUFFIX__=%s", TypeWidth, ConstSuffix);
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DefineBuiltinMacro(Buf, MacroBuf);
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}
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llvm::StringRef ConstSuffix(TargetInfo::getTypeConstantSuffix(Ty));
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if (!ConstSuffix.empty())
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Builder.DefineMacro("__INT" + llvm::Twine(TypeWidth) + "_C_SUFFIX__",
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ConstSuffix);
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}
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static void InitializePredefinedMacros(const TargetInfo &TI,
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const LangOptions &LangOpts,
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std::vector<char> &Buf) {
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MacroBuilder &Builder) {
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// Compiler version introspection macros.
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DefineBuiltinMacro(Buf, "__llvm__=1"); // LLVM Backend
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DefineBuiltinMacro(Buf, "__clang__=1"); // Clang Frontend
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Builder.DefineMacro("__llvm__"); // LLVM Backend
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Builder.DefineMacro("__clang__"); // Clang Frontend
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// Currently claim to be compatible with GCC 4.2.1-5621.
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DefineBuiltinMacro(Buf, "__GNUC_MINOR__=2");
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DefineBuiltinMacro(Buf, "__GNUC_PATCHLEVEL__=1");
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DefineBuiltinMacro(Buf, "__GNUC__=4");
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DefineBuiltinMacro(Buf, "__GXX_ABI_VERSION=1002");
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DefineBuiltinMacro(Buf, "__VERSION__=\"4.2.1 Compatible Clang Compiler\"");
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Builder.DefineMacro("__GNUC_MINOR__", "2");
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Builder.DefineMacro("__GNUC_PATCHLEVEL__", "1");
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Builder.DefineMacro("__GNUC__", "4");
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Builder.DefineMacro("__GXX_ABI_VERSION", "1002");
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Builder.DefineMacro("__VERSION__", "\"4.2.1 Compatible Clang Compiler\"");
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// Initialize language-specific preprocessor defines.
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// These should all be defined in the preprocessor according to the
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// current language configuration.
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if (!LangOpts.Microsoft)
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DefineBuiltinMacro(Buf, "__STDC__=1");
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Builder.DefineMacro("__STDC__");
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if (LangOpts.AsmPreprocessor)
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DefineBuiltinMacro(Buf, "__ASSEMBLER__=1");
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Builder.DefineMacro("__ASSEMBLER__");
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if (!LangOpts.CPlusPlus) {
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if (LangOpts.C99)
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DefineBuiltinMacro(Buf, "__STDC_VERSION__=199901L");
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Builder.DefineMacro("__STDC_VERSION__", "199901L");
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else if (!LangOpts.GNUMode && LangOpts.Digraphs)
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DefineBuiltinMacro(Buf, "__STDC_VERSION__=199409L");
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Builder.DefineMacro("__STDC_VERSION__", "199409L");
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}
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// Standard conforming mode?
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if (!LangOpts.GNUMode)
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DefineBuiltinMacro(Buf, "__STRICT_ANSI__=1");
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Builder.DefineMacro("__STRICT_ANSI__");
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if (LangOpts.CPlusPlus0x)
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DefineBuiltinMacro(Buf, "__GXX_EXPERIMENTAL_CXX0X__");
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Builder.DefineMacro("__GXX_EXPERIMENTAL_CXX0X__");
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if (LangOpts.Freestanding)
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DefineBuiltinMacro(Buf, "__STDC_HOSTED__=0");
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Builder.DefineMacro("__STDC_HOSTED__", "0");
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else
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DefineBuiltinMacro(Buf, "__STDC_HOSTED__=1");
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Builder.DefineMacro("__STDC_HOSTED__");
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if (LangOpts.ObjC1) {
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DefineBuiltinMacro(Buf, "__OBJC__=1");
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Builder.DefineMacro("__OBJC__");
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if (LangOpts.ObjCNonFragileABI) {
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DefineBuiltinMacro(Buf, "__OBJC2__=1");
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DefineBuiltinMacro(Buf, "OBJC_ZEROCOST_EXCEPTIONS=1");
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Builder.DefineMacro("__OBJC2__");
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Builder.DefineMacro("OBJC_ZEROCOST_EXCEPTIONS");
|
||||
}
|
||||
|
||||
if (LangOpts.getGCMode() != LangOptions::NonGC)
|
||||
DefineBuiltinMacro(Buf, "__OBJC_GC__=1");
|
||||
Builder.DefineMacro("__OBJC_GC__");
|
||||
|
||||
if (LangOpts.NeXTRuntime)
|
||||
DefineBuiltinMacro(Buf, "__NEXT_RUNTIME__=1");
|
||||
Builder.DefineMacro("__NEXT_RUNTIME__");
|
||||
}
|
||||
|
||||
// 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");
|
||||
Builder.DefineMacro("__CONSTANT_CFSTRINGS__");
|
||||
|
||||
if (LangOpts.ObjC2)
|
||||
DefineBuiltinMacro(Buf, "OBJC_NEW_PROPERTIES");
|
||||
Builder.DefineMacro("OBJC_NEW_PROPERTIES");
|
||||
|
||||
if (LangOpts.PascalStrings)
|
||||
DefineBuiltinMacro(Buf, "__PASCAL_STRINGS__");
|
||||
Builder.DefineMacro("__PASCAL_STRINGS__");
|
||||
|
||||
if (LangOpts.Blocks) {
|
||||
DefineBuiltinMacro(Buf, "__block=__attribute__((__blocks__(byref)))");
|
||||
DefineBuiltinMacro(Buf, "__BLOCKS__=1");
|
||||
Builder.DefineMacro("__block", "__attribute__((__blocks__(byref)))");
|
||||
Builder.DefineMacro("__BLOCKS__");
|
||||
}
|
||||
|
||||
if (LangOpts.Exceptions)
|
||||
DefineBuiltinMacro(Buf, "__EXCEPTIONS=1");
|
||||
Builder.DefineMacro("__EXCEPTIONS");
|
||||
|
||||
if (LangOpts.CPlusPlus) {
|
||||
DefineBuiltinMacro(Buf, "__DEPRECATED=1");
|
||||
DefineBuiltinMacro(Buf, "__GNUG__=4");
|
||||
DefineBuiltinMacro(Buf, "__GXX_WEAK__=1");
|
||||
Builder.DefineMacro("__DEPRECATED");
|
||||
Builder.DefineMacro("__GNUG__", "4");
|
||||
Builder.DefineMacro("__GXX_WEAK__");
|
||||
if (LangOpts.GNUMode)
|
||||
DefineBuiltinMacro(Buf, "__cplusplus=1");
|
||||
Builder.DefineMacro("__cplusplus");
|
||||
else
|
||||
// C++ [cpp.predefined]p1:
|
||||
// The name_ _cplusplusis defined to the value199711Lwhen compiling a
|
||||
// C++ translation unit.
|
||||
DefineBuiltinMacro(Buf, "__cplusplus=199711L");
|
||||
DefineBuiltinMacro(Buf, "__private_extern__=extern");
|
||||
Builder.DefineMacro("__cplusplus", "199711L");
|
||||
Builder.DefineMacro("__private_extern__", "extern");
|
||||
// Ugly hack to work with GNU libstdc++.
|
||||
DefineBuiltinMacro(Buf, "_GNU_SOURCE=1");
|
||||
Builder.DefineMacro("_GNU_SOURCE");
|
||||
}
|
||||
|
||||
if (LangOpts.Microsoft) {
|
||||
// Filter out some microsoft extensions when trying to parse in ms-compat
|
||||
// mode.
|
||||
DefineBuiltinMacro(Buf, "__int8=__INT8_TYPE__");
|
||||
DefineBuiltinMacro(Buf, "__int16=__INT16_TYPE__");
|
||||
DefineBuiltinMacro(Buf, "__int32=__INT32_TYPE__");
|
||||
DefineBuiltinMacro(Buf, "__int64=__INT64_TYPE__");
|
||||
Builder.DefineMacro("__int8", "__INT8_TYPE__");
|
||||
Builder.DefineMacro("__int16", "__INT16_TYPE__");
|
||||
Builder.DefineMacro("__int32", "__INT32_TYPE__");
|
||||
Builder.DefineMacro("__int64", "__INT64_TYPE__");
|
||||
// Both __PRETTY_FUNCTION__ and __FUNCTION__ are GCC extensions, however
|
||||
// VC++ appears to only like __FUNCTION__.
|
||||
DefineBuiltinMacro(Buf, "__PRETTY_FUNCTION__=__FUNCTION__");
|
||||
Builder.DefineMacro("__PRETTY_FUNCTION__", "__FUNCTION__");
|
||||
// Work around some issues with Visual C++ headerws.
|
||||
if (LangOpts.CPlusPlus) {
|
||||
// Since we define wchar_t in C++ mode.
|
||||
DefineBuiltinMacro(Buf, "_WCHAR_T_DEFINED=1");
|
||||
DefineBuiltinMacro(Buf, "_NATIVE_WCHAR_T_DEFINED=1");
|
||||
Builder.DefineMacro("_WCHAR_T_DEFINED");
|
||||
Builder.DefineMacro("_NATIVE_WCHAR_T_DEFINED");
|
||||
// FIXME: This should be temporary until we have a __pragma
|
||||
// solution, to avoid some errors flagged in VC++ headers.
|
||||
DefineBuiltinMacro(Buf, "_CRT_SECURE_CPP_OVERLOAD_SECURE_NAMES=0");
|
||||
Builder.DefineMacro("_CRT_SECURE_CPP_OVERLOAD_SECURE_NAMES", "0");
|
||||
}
|
||||
}
|
||||
|
||||
if (LangOpts.Optimize)
|
||||
DefineBuiltinMacro(Buf, "__OPTIMIZE__=1");
|
||||
Builder.DefineMacro("__OPTIMIZE__");
|
||||
if (LangOpts.OptimizeSize)
|
||||
DefineBuiltinMacro(Buf, "__OPTIMIZE_SIZE__=1");
|
||||
Builder.DefineMacro("__OPTIMIZE_SIZE__");
|
||||
|
||||
// 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");
|
||||
Builder.DefineMacro("__CHAR_BIT__", "8");
|
||||
|
||||
DefineTypeSize("__SCHAR_MAX__", TI.getCharWidth(), "", true, Buf);
|
||||
DefineTypeSize("__SHRT_MAX__", TargetInfo::SignedShort, TI, Buf);
|
||||
DefineTypeSize("__INT_MAX__", TargetInfo::SignedInt, TI, Buf);
|
||||
DefineTypeSize("__LONG_MAX__", TargetInfo::SignedLong, TI, Buf);
|
||||
DefineTypeSize("__LONG_LONG_MAX__", TargetInfo::SignedLongLong, TI, Buf);
|
||||
DefineTypeSize("__WCHAR_MAX__", TI.getWCharType(), TI, Buf);
|
||||
DefineTypeSize("__INTMAX_MAX__", TI.getIntMaxType(), TI, Buf);
|
||||
DefineTypeSize("__SCHAR_MAX__", TI.getCharWidth(), "", true, Builder);
|
||||
DefineTypeSize("__SHRT_MAX__", TargetInfo::SignedShort, TI, Builder);
|
||||
DefineTypeSize("__INT_MAX__", TargetInfo::SignedInt, TI, Builder);
|
||||
DefineTypeSize("__LONG_MAX__", TargetInfo::SignedLong, TI, Builder);
|
||||
DefineTypeSize("__LONG_LONG_MAX__", TargetInfo::SignedLongLong, TI, Builder);
|
||||
DefineTypeSize("__WCHAR_MAX__", TI.getWCharType(), TI, Builder);
|
||||
DefineTypeSize("__INTMAX_MAX__", TI.getIntMaxType(), TI, Builder);
|
||||
|
||||
DefineType("__INTMAX_TYPE__", TI.getIntMaxType(), Buf);
|
||||
DefineType("__UINTMAX_TYPE__", TI.getUIntMaxType(), Buf);
|
||||
DefineTypeWidth("__INTMAX_WIDTH__", TI.getIntMaxType(), TI, Buf);
|
||||
DefineType("__PTRDIFF_TYPE__", TI.getPtrDiffType(0), Buf);
|
||||
DefineTypeWidth("__PTRDIFF_WIDTH__", TI.getPtrDiffType(0), TI, Buf);
|
||||
DefineType("__INTPTR_TYPE__", TI.getIntPtrType(), Buf);
|
||||
DefineTypeWidth("__INTPTR_WIDTH__", TI.getIntPtrType(), TI, Buf);
|
||||
DefineType("__SIZE_TYPE__", TI.getSizeType(), Buf);
|
||||
DefineTypeWidth("__SIZE_WIDTH__", TI.getSizeType(), TI, Buf);
|
||||
DefineType("__WCHAR_TYPE__", TI.getWCharType(), Buf);
|
||||
DefineTypeWidth("__WCHAR_WIDTH__", TI.getWCharType(), TI, Buf);
|
||||
DefineType("__WINT_TYPE__", TI.getWIntType(), Buf);
|
||||
DefineTypeWidth("__WINT_WIDTH__", TI.getWIntType(), TI, Buf);
|
||||
DefineTypeWidth("__SIG_ATOMIC_WIDTH__", TI.getSigAtomicType(), TI, Buf);
|
||||
DefineType("__INTMAX_TYPE__", TI.getIntMaxType(), Builder);
|
||||
DefineType("__UINTMAX_TYPE__", TI.getUIntMaxType(), Builder);
|
||||
DefineTypeWidth("__INTMAX_WIDTH__", TI.getIntMaxType(), TI, Builder);
|
||||
DefineType("__PTRDIFF_TYPE__", TI.getPtrDiffType(0), Builder);
|
||||
DefineTypeWidth("__PTRDIFF_WIDTH__", TI.getPtrDiffType(0), TI, Builder);
|
||||
DefineType("__INTPTR_TYPE__", TI.getIntPtrType(), Builder);
|
||||
DefineTypeWidth("__INTPTR_WIDTH__", TI.getIntPtrType(), TI, Builder);
|
||||
DefineType("__SIZE_TYPE__", TI.getSizeType(), Builder);
|
||||
DefineTypeWidth("__SIZE_WIDTH__", TI.getSizeType(), TI, Builder);
|
||||
DefineType("__WCHAR_TYPE__", TI.getWCharType(), Builder);
|
||||
DefineTypeWidth("__WCHAR_WIDTH__", TI.getWCharType(), TI, Builder);
|
||||
DefineType("__WINT_TYPE__", TI.getWIntType(), Builder);
|
||||
DefineTypeWidth("__WINT_WIDTH__", TI.getWIntType(), TI, Builder);
|
||||
DefineTypeWidth("__SIG_ATOMIC_WIDTH__", TI.getSigAtomicType(), TI, Builder);
|
||||
|
||||
DefineFloatMacros(Buf, "FLT", &TI.getFloatFormat());
|
||||
DefineFloatMacros(Buf, "DBL", &TI.getDoubleFormat());
|
||||
DefineFloatMacros(Buf, "LDBL", &TI.getLongDoubleFormat());
|
||||
DefineFloatMacros(Builder, "FLT", &TI.getFloatFormat());
|
||||
DefineFloatMacros(Builder, "DBL", &TI.getDoubleFormat());
|
||||
DefineFloatMacros(Builder, "LDBL", &TI.getLongDoubleFormat());
|
||||
|
||||
// Define a __POINTER_WIDTH__ macro for stdint.h.
|
||||
char MacroBuf[60];
|
||||
sprintf(MacroBuf, "__POINTER_WIDTH__=%d", (int)TI.getPointerWidth(0));
|
||||
DefineBuiltinMacro(Buf, MacroBuf);
|
||||
Builder.DefineMacro("__POINTER_WIDTH__",
|
||||
llvm::Twine((int)TI.getPointerWidth(0)));
|
||||
|
||||
if (!LangOpts.CharIsSigned)
|
||||
DefineBuiltinMacro(Buf, "__CHAR_UNSIGNED__");
|
||||
Builder.DefineMacro("__CHAR_UNSIGNED__");
|
||||
|
||||
// Define exact-width integer types for stdint.h
|
||||
sprintf(MacroBuf, "__INT%d_TYPE__=char", TI.getCharWidth());
|
||||
DefineBuiltinMacro(Buf, MacroBuf);
|
||||
Builder.DefineMacro("__INT" + llvm::Twine(TI.getCharWidth()) + "_TYPE__",
|
||||
"char");
|
||||
|
||||
if (TI.getShortWidth() > TI.getCharWidth())
|
||||
DefineExactWidthIntType(TargetInfo::SignedShort, TI, Buf);
|
||||
|
||||
if (TI.getIntWidth() > TI.getShortWidth())
|
||||
DefineExactWidthIntType(TargetInfo::SignedInt, TI, Buf);
|
||||
|
||||
if (TI.getLongWidth() > TI.getIntWidth())
|
||||
DefineExactWidthIntType(TargetInfo::SignedLong, TI, Buf);
|
||||
|
||||
if (TI.getLongLongWidth() > TI.getLongWidth())
|
||||
DefineExactWidthIntType(TargetInfo::SignedLongLong, TI, Buf);
|
||||
|
||||
// Add __builtin_va_list typedef.
|
||||
{
|
||||
const char *VAList = TI.getVAListDeclaration();
|
||||
Buf.insert(Buf.end(), VAList, VAList+strlen(VAList));
|
||||
Buf.push_back('\n');
|
||||
}
|
||||
DefineExactWidthIntType(TargetInfo::SignedShort, TI, Builder);
|
||||
|
||||
if (const char *Prefix = TI.getUserLabelPrefix()) {
|
||||
sprintf(MacroBuf, "__USER_LABEL_PREFIX__=%s", Prefix);
|
||||
DefineBuiltinMacro(Buf, MacroBuf);
|
||||
}
|
||||
if (TI.getIntWidth() > TI.getShortWidth())
|
||||
DefineExactWidthIntType(TargetInfo::SignedInt, TI, Builder);
|
||||
|
||||
if (TI.getLongWidth() > TI.getIntWidth())
|
||||
DefineExactWidthIntType(TargetInfo::SignedLong, TI, Builder);
|
||||
|
||||
if (TI.getLongLongWidth() > TI.getLongWidth())
|
||||
DefineExactWidthIntType(TargetInfo::SignedLongLong, TI, Builder);
|
||||
|
||||
// Add __builtin_va_list typedef.
|
||||
Builder.Append(TI.getVAListDeclaration());
|
||||
|
||||
if (const char *Prefix = TI.getUserLabelPrefix())
|
||||
Builder.DefineMacro("__USER_LABEL_PREFIX__", Prefix);
|
||||
|
||||
// Build configuration options. FIXME: these should be controlled by
|
||||
// command line options or something.
|
||||
DefineBuiltinMacro(Buf, "__FINITE_MATH_ONLY__=0");
|
||||
Builder.DefineMacro("__FINITE_MATH_ONLY__", "0");
|
||||
|
||||
if (LangOpts.GNUInline)
|
||||
DefineBuiltinMacro(Buf, "__GNUC_GNU_INLINE__=1");
|
||||
Builder.DefineMacro("__GNUC_GNU_INLINE__");
|
||||
else
|
||||
DefineBuiltinMacro(Buf, "__GNUC_STDC_INLINE__=1");
|
||||
Builder.DefineMacro("__GNUC_STDC_INLINE__");
|
||||
|
||||
if (LangOpts.NoInline)
|
||||
DefineBuiltinMacro(Buf, "__NO_INLINE__=1");
|
||||
Builder.DefineMacro("__NO_INLINE__");
|
||||
|
||||
if (unsigned PICLevel = LangOpts.PICLevel) {
|
||||
sprintf(MacroBuf, "__PIC__=%d", PICLevel);
|
||||
DefineBuiltinMacro(Buf, MacroBuf);
|
||||
|
||||
sprintf(MacroBuf, "__pic__=%d", PICLevel);
|
||||
DefineBuiltinMacro(Buf, MacroBuf);
|
||||
Builder.DefineMacro("__PIC__", llvm::Twine(PICLevel));
|
||||
Builder.DefineMacro("__pic__", llvm::Twine(PICLevel));
|
||||
}
|
||||
|
||||
// Macros to control C99 numerics and <float.h>
|
||||
DefineBuiltinMacro(Buf, "__FLT_EVAL_METHOD__=0");
|
||||
DefineBuiltinMacro(Buf, "__FLT_RADIX__=2");
|
||||
sprintf(MacroBuf, "__DECIMAL_DIG__=%d",
|
||||
PickFP(&TI.getLongDoubleFormat(), -1/*FIXME*/, 17, 21, 33, 36));
|
||||
DefineBuiltinMacro(Buf, MacroBuf);
|
||||
Builder.DefineMacro("__FLT_EVAL_METHOD__", "0");
|
||||
Builder.DefineMacro("__FLT_RADIX__", "2");
|
||||
int Dig = PickFP(&TI.getLongDoubleFormat(), -1/*FIXME*/, 17, 21, 33, 36);
|
||||
Builder.DefineMacro("__DECIMAL_DIG__", llvm::Twine(Dig));
|
||||
|
||||
if (LangOpts.getStackProtectorMode() == LangOptions::SSPOn)
|
||||
DefineBuiltinMacro(Buf, "__SSP__=1");
|
||||
Builder.DefineMacro("__SSP__");
|
||||
else if (LangOpts.getStackProtectorMode() == LangOptions::SSPReq)
|
||||
DefineBuiltinMacro(Buf, "__SSP_ALL__=2");
|
||||
Builder.DefineMacro("__SSP_ALL__", "2");
|
||||
|
||||
// Get other target #defines.
|
||||
// FIXME: avoid temporary vector.
|
||||
std::vector<char> Buf;
|
||||
TI.getTargetDefines(LangOpts, Buf);
|
||||
Builder.AppendVector(Buf);
|
||||
}
|
||||
|
||||
// Initialize the remapping of files to alternative contents, e.g.,
|
||||
|
|
@ -541,57 +505,53 @@ static void InitializeFileRemapping(Diagnostic &Diags,
|
|||
void clang::InitializePreprocessor(Preprocessor &PP,
|
||||
const PreprocessorOptions &InitOpts,
|
||||
const HeaderSearchOptions &HSOpts) {
|
||||
std::vector<char> PredefineBuffer;
|
||||
std::string PredefineBuffer;
|
||||
PredefineBuffer.reserve(4080);
|
||||
llvm::raw_string_ostream Predefines(PredefineBuffer);
|
||||
MacroBuilder Builder(Predefines);
|
||||
|
||||
InitializeFileRemapping(PP.getDiagnostics(), PP.getSourceManager(),
|
||||
PP.getFileManager(), InitOpts);
|
||||
|
||||
const char *LineDirective = "# 1 \"<built-in>\" 3\n";
|
||||
PredefineBuffer.insert(PredefineBuffer.end(),
|
||||
LineDirective, LineDirective+strlen(LineDirective));
|
||||
Builder.Append("# 1 \"<built-in>\" 3");
|
||||
|
||||
// Install things like __POWERPC__, __GNUC__, etc into the macro table.
|
||||
if (InitOpts.UsePredefines)
|
||||
InitializePredefinedMacros(PP.getTargetInfo(), PP.getLangOptions(),
|
||||
PredefineBuffer);
|
||||
Builder);
|
||||
|
||||
// Add on the predefines from the driver. Wrap in a #line directive to report
|
||||
// that they come from the command line.
|
||||
LineDirective = "# 1 \"<command line>\" 1\n";
|
||||
PredefineBuffer.insert(PredefineBuffer.end(),
|
||||
LineDirective, LineDirective+strlen(LineDirective));
|
||||
Builder.Append("# 1 \"<command line>\" 1");
|
||||
|
||||
// Process #define's and #undef's in the order they are given.
|
||||
for (unsigned i = 0, e = InitOpts.Macros.size(); i != e; ++i) {
|
||||
if (InitOpts.Macros[i].second) // isUndef
|
||||
UndefineBuiltinMacro(PredefineBuffer, InitOpts.Macros[i].first.c_str());
|
||||
Builder.UndefineMacro(InitOpts.Macros[i].first);
|
||||
else
|
||||
DefineBuiltinMacro(PredefineBuffer, InitOpts.Macros[i].first.c_str(),
|
||||
DefineBuiltinMacro(Builder, InitOpts.Macros[i].first,
|
||||
&PP.getDiagnostics());
|
||||
}
|
||||
|
||||
// If -imacros are specified, include them now. These are processed before
|
||||
// any -include directives.
|
||||
for (unsigned i = 0, e = InitOpts.MacroIncludes.size(); i != e; ++i)
|
||||
AddImplicitIncludeMacros(PredefineBuffer, InitOpts.MacroIncludes[i]);
|
||||
AddImplicitIncludeMacros(Builder, InitOpts.MacroIncludes[i]);
|
||||
|
||||
// Process -include directives.
|
||||
for (unsigned i = 0, e = InitOpts.Includes.size(); i != e; ++i) {
|
||||
const std::string &Path = InitOpts.Includes[i];
|
||||
if (Path == InitOpts.ImplicitPTHInclude)
|
||||
AddImplicitIncludePTH(PredefineBuffer, PP, Path);
|
||||
AddImplicitIncludePTH(Builder, PP, Path);
|
||||
else
|
||||
AddImplicitInclude(PredefineBuffer, Path);
|
||||
AddImplicitInclude(Builder, Path);
|
||||
}
|
||||
|
||||
// Exit the command line and go back to <built-in> (2 is LC_LEAVE).
|
||||
LineDirective = "# 1 \"<built-in>\" 2\n";
|
||||
PredefineBuffer.insert(PredefineBuffer.end(),
|
||||
LineDirective, LineDirective+strlen(LineDirective));
|
||||
Builder.Append("# 1 \"<built-in>\" 2");
|
||||
|
||||
// Null terminate PredefinedBuffer and add it.
|
||||
PredefineBuffer.push_back(0);
|
||||
PP.setPredefines(&PredefineBuffer[0]);
|
||||
// Copy PredefinedBuffer into the Preprocessor.
|
||||
PP.setPredefines(Predefines.str());
|
||||
|
||||
// Initialize the header search object.
|
||||
ApplyHeaderSearchOptions(PP.getHeaderSearchInfo(), HSOpts,
|
||||
|
|
|
|||
Loading…
Reference in New Issue