a.out.h

Linux内核源代码 为压缩文件 是<<Linux内核>>一书中的源代码

/* $Id: a.out.h,v 1.1 1999/08/18 23:37:50 ralf Exp $
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1994 - 1999 by Ralf Baechle
 */
#ifndef _ASM_A_OUT_H
#define _ASM_A_OUT_H

struct exec
{
  unsigned long a_info;		/* Use macros N_MAGIC, etc for access */
  unsigned a_text;		/* length of text, in bytes */
  unsigned a_data;		/* length of data, in bytes */
  unsigned a_bss;		/* length of uninitialized data area for file, in bytes */
  unsigned a_syms;		/* length of symbol table data in file, in bytes */
  unsigned a_entry;		/* start address */
  unsigned a_trsize;		/* length of relocation info for text, in bytes */
  unsigned a_drsize;		/* length of relocation info for data, in bytes */
};

#define N_TRSIZE(a)	((a).a_trsize)
#define N_DRSIZE(a)	((a).a_drsize)
#define N_SYMSIZE(a)	((a).a_syms)

#ifdef __KERNEL__

#define STACK_TOP (current->thread.mflags & MF_32BIT ? 0x7fff8000 : TASK_SIZE)

#endif

#endif /* _ASM_A_OUT_H */