sysdeps/unix/sysv/linux/mips/sys/user.h

   1 /* Copyright (C) 2002 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #ifndef _SYS_USER_H
  20 #define _SYS_USER_H     1
  21
  22 /* The whole purpose of this file is for GDB and GDB only.  Don't read
  23    too much into it.  Don't use it for anything other than GDB unless
  24    you know what you are doing.  */
  25
  26 #include <asm/reg.h>
  27
  28 struct user
  29 {
  30   unsigned long regs[EF_SIZE/4+64];     /* integer and fp regs */
  31   size_t        u_tsize;                /* text size (pages) */
  32   size_t        u_dsize;                /* data size (pages) */
  33   size_t        u_ssize;                /* stack size (pages) */
  34   unsigned long start_code;             /* text starting address */
  35   unsigned long start_data;             /* data starting address */
  36   unsigned long start_stack;            /* stack starting address */
  37   long int      signal;                 /* signal causing core dump */
  38   void*         u_ar0;                  /* help gdb find registers */
  39   unsigned long magic;                  /* identifies a core file */
  40   char          u_comm[32];             /* user command name */
  41 };
  42
  43 #define PAGE_SHIFT              12
  44 #define PAGE_SIZE               (1UL << PAGE_SHIFT)
  45 #define PAGE_MASK               (~(PAGE_SIZE-1))
  46 #define NBPG                    PAGE_SIZE
  47 #define UPAGES                  1
  48 #define HOST_TEXT_START_ADDR    (u.start_code)
  49 #define HOST_DATA_START_ADDR    (u.start_data)
  50 #define HOST_STACK_END_ADDR     (u.start_stack + u.u_ssize * NBPG)
  51
  52 #endif  /* _SYS_USER_H */