sysdeps/unix/sysv/linux/arm/bits/armsigctx.h

   1 /* Definition of `struct sigcontext' for Linux/ARM
   2    Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 /* The format of struct sigcontext changed between 2.0 and 2.1 kernels.
  21    Fortunately 2.0 puts a magic number in the first word and this is not
  22    a legal value for `trap_no', so we can tell them apart.  */
  23
  24 union k_sigcontext
  25   {
  26     struct
  27       {
  28         unsigned long int trap_no;
  29         unsigned long int error_code;
  30         unsigned long int oldmask;
  31         unsigned long int arm_r0;
  32         unsigned long int arm_r1;
  33         unsigned long int arm_r2;
  34         unsigned long int arm_r3;
  35         unsigned long int arm_r4;
  36         unsigned long int arm_r5;
  37         unsigned long int arm_r6;
  38         unsigned long int arm_r7;
  39         unsigned long int arm_r8;
  40         unsigned long int arm_r9;
  41         unsigned long int arm_r10;
  42         unsigned long int arm_fp;
  43         unsigned long int arm_ip;
  44         unsigned long int arm_sp;
  45         unsigned long int arm_lr;
  46         unsigned long int arm_pc;
  47         unsigned long int arm_cpsr;
  48       } v21;
  49     struct
  50       {
  51         unsigned long int magic;
  52         struct pt_regs reg;
  53         unsigned long int trap_no;
  54         unsigned long int error_code;
  55         unsigned long int oldmask;
  56       } v20;
  57 };
  58
  59 #define SIGCONTEXT_2_0_MAGIC    0x4B534154