elf.h

MONA是为数不多的C++语言编写的一个很小的操作系统

/*!
    \file  elf.h
    \brief utilities for ELF file format

    Copyright (c) 2003 HigePon
    WITHOUT ANY WARRANTY

    \author  HigePon
    \version $Revision: 1.1 $
    \date   create:2003/09/04 update:$Date: 2004/05/04 14:28:56 $
*/
#ifndef _MONA_ELF_
#define _MONA_ELF_

#ifdef MONA
#include <sys/types.h>
#else
#include "types.h"
#endif

typedef struct
{
    byte  magic[4];      // 0x7F, 'E', 'L', 'F'
    byte  clazz;         // address size 1:32bit / 2:64bit
    byte  byteorder;     // 1:little / 2:big
    byte  headerversion; // 1
    byte  pad[9];        // padding
    word  type;          // 1:relocatable / 2:executable / 3:common / 4:core image
    word  archtype;      // 2:SPARK / 3:x86 / 4:68K
    dword fileversion;   // 1
    dword entrypoint;    // entry point for executable
    dword phdrpos;       // position at program header
    dword shdrpos;       // position at section header
    dword flag;          // 0
    word  hdrsize;       // ELF header size
    word  phdrent;       // program header entry size
    word  phdrcnt;       // program header entry count
    word  shdrent;       // section header entry size
    word  shdrcnt;       // section header entry count
    word  strsec;        // section number to string
} ELFHeader;

typedef struct {
    dword type;
    dword offset;
    dword virtualaddr;
    dword physaddr;
    dword filesize;
    dword memorysize;
    dword flags;
    dword align;
} ELFProgramHeader;

typedef struct {
    dword name;
    dword type;
    dword flags;
    dword address;
    dword offset;
    dword size;
    dword link;
    dword info;
    dword align;
    dword entsize;
} ELFSectionHeader;

typedef struct
{
    dword name;
    dword value;
    dword size;
    byte type:4;
    byte bind:4;
    byte unused;
    word section;
} ELFSymbolEntry;

typedef struct
{
    dword offset;
    dword indexType;
} ELFRelocationEntry;

#endif