user.h

Glibc 2.3.2源代码(解压后有100多M)

/* Copyright (C) 2002 Free Software Foundation, Inc.
   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 Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#ifndef _SYS_USER_H
#define _SYS_USER_H	1

/* The whole purpose of this file is for GDB and GDB only.  Don't read
   too much into it.  Don't use it for anything other than GDB unless
   you know what you are doing.  */

#include <asm/reg.h>

struct user
{
  unsigned long	regs[EF_SIZE/4+64];	/* integer and fp regs */
  size_t	u_tsize;		/* text size (pages) */
  size_t	u_dsize;		/* data size (pages) */
  size_t	u_ssize;		/* stack size (pages) */
  unsigned long	start_code;		/* text starting address */
  unsigned long	start_data;		/* data starting address */
  unsigned long	start_stack;		/* stack starting address */
  long int	signal;			/* signal causing core dump */
  void*		u_ar0;			/* help gdb find registers */
  unsigned long	magic;			/* identifies a core file */
  char		u_comm[32];		/* user command name */
};

#define PAGE_SHIFT		12
#define PAGE_SIZE		(1UL << PAGE_SHIFT)
#define PAGE_MASK		(~(PAGE_SIZE-1))
#define NBPG			PAGE_SIZE
#define UPAGES			1
#define HOST_TEXT_START_ADDR	(u.start_code)
#define HOST_DATA_START_ADDR	(u.start_data)
#define HOST_STACK_END_ADDR	(u.start_stack + u.u_ssize * NBPG)

#endif	/* _SYS_USER_H */