llvm-6502/include/llvm/MC/MCDwarf.h
Kevin Enderby b07ce60981 Next bit of support for the dwarf .file directive. This patch takes the
previously collected info from the .file directives and outputs the encoded
bytes for it.  For now this is only in the Mach-O streamer but at some point
will move to a more generic place.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110617 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-09 22:52:14 +00:00

67 lines
2.2 KiB
C++

//===- MCDwarf.h - Machine Code Dwarf support -------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the declaration of the MCDwarfFile to support the dwarf
// .file directive.
// TODO: add the support needed for the .loc directive.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_MC_MCDWARF_H
#define LLVM_MC_MCDWARF_H
#include "llvm/ADT/StringRef.h"
namespace llvm {
class MCContext;
class raw_ostream;
/// MCDwarfFile - Instances of this class represent the name of the dwarf
/// .file directive and its associated dwarf file number in the MC file,
/// and MCDwarfFile's are created and unique'd by the MCContext class where
/// the file number for each is its index into the vector of DwarfFiles (note
/// index 0 is not used and not a valid dwarf file number).
class MCDwarfFile {
// Name - the base name of the file without its directory path.
// The StringRef references memory allocated in the MCContext.
StringRef Name;
// DirIndex - the index into the list of directory names for this file name.
unsigned DirIndex;
private: // MCContext creates and uniques these.
friend class MCContext;
MCDwarfFile(StringRef name, unsigned dirIndex)
: Name(name), DirIndex(dirIndex) {}
MCDwarfFile(const MCDwarfFile&); // DO NOT IMPLEMENT
void operator=(const MCDwarfFile&); // DO NOT IMPLEMENT
public:
/// getName - Get the base name of this MCDwarfFile.
StringRef getName() const { return Name; }
/// getDirIndex - Get the dirIndex of this MCDwarfFile.
unsigned getDirIndex() const { return DirIndex; }
/// print - Print the value to the stream \arg OS.
void print(raw_ostream &OS) const;
/// dump - Print the value to stderr.
void dump() const;
};
inline raw_ostream &operator<<(raw_ostream &OS, const MCDwarfFile &DwarfFile){
DwarfFile.print(OS);
return OS;
}
} // end namespace llvm
#endif