path: root/elf/elf.h

/* This file defines standard ELF types, structures, and macros.
Copyright (C) 1995, 1996 Free Software Foundation, Inc.
Contributed by Ian Lance Taylor (ian@cygnus.com).

This file is part of the GNU C Library.

The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.

The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Library General Public License for more details.

You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB.  If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA.  */

#ifndef _ELF_H
#define	_ELF_H 1


/* Standard ELF types.  Using __attribute__ mode ensures that GCC
   will choose the right number of bits for these types.  */

/* Type for a 16-bit quantity.  */
typedef unsigned int Elf32_Half    __attribute__ ((mode (HI)));
typedef unsigned int Elf64_Half    __attribute__ ((mode (HI)));

/* Types for signed and unsigned 32-bit quantities.  */
typedef unsigned int Elf32_Word    __attribute__ ((mode (SI)));
typedef		 int Elf32_Sword   __attribute__ ((mode (SI)));
typedef unsigned int Elf64_Word    __attribute__ ((mode (SI)));
typedef		 int Elf64_Sword   __attribute__ ((mode (SI)));

/* Types for signed and unsigned 64-bit quantities.  */
typedef unsigned int Elf32_Xword   __attribute__ ((mode (DI)));
typedef		 int Elf32_Sxword  __attribute__ ((mode (DI)));
typedef unsigned int Elf64_Xword   __attribute__ ((mode (DI)));
typedef		 int Elf64_Sxword  __attribute__ ((mode (DI)));

/* Type of addresses.  */
typedef unsigned int Elf32_Addr    __attribute__ ((mode (SI)));
typedef unsigned int Elf64_Addr    __attribute__ ((mode (DI)));

/* Type of file offsets.  */
typedef unsigned int Elf32_Off     __attribute__ ((mode (SI)));
typedef unsigned int Elf64_Off     __attribute__ ((mode (DI)));

/* Type for section indices, which are 16-bit quantities.  */
typedef unsigned int Elf32_Section __attribute__ ((mode (HI)));
typedef unsigned int Elf64_Section __attribute__ ((mode (HI)));

/* Type of symbol indices.  */
typedef unsigned int Elf32_Symndx  __attribute__ ((mode (SI)));
typedef unsigned int Elf64_Symndx  __attribute__ ((mode (DI)));


/* The ELF file header.  This appears at the start of every ELF file.  */

#define EI_NIDENT (16)

typedef struct
{
  unsigned char	e_ident[EI_NIDENT];	/* Magic number and other info */
  Elf32_Half	e_type;			/* Object file type */
  Elf32_Half	e_machine;		/* Architecture */
  Elf32_Word	e_version;		/* Object file version */
  Elf32_Addr	e_entry;		/* Entry poin