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

   1 /* Definition of `struct sigcontext' for Linux/ARM
   2    Copyright (C) 1996, 1997, 1998, 1999, 2000 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 Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the 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    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    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 /* Early 2.2 and 2.3 kernels do not have the `fault_address' member in
  25    the sigcontext structure.  Unfortunately there is no reliable way
  26    to test for its presence and this word will contain garbage for too-old
  27    kernels.  Versions 2.2.14 and 2.3.35 (plus later versions) are known to
  28    include this element.  */
  29
  30 #ifndef __ARMSIGCTX_H
  31 #define __ARMSIGCTX_H   1
  32
  33 #include <asm/ptrace.h>
  34
  35 union k_sigcontext
  36   {
  37     struct
  38       {
  39         unsigned long int trap_no;
  40         unsigned long int error_code;
  41         unsigned long int oldmask;
  42         unsigned long int arm_r0;
  43         unsigned long int arm_r1;
  44         unsigned long int arm_r2;
  45         unsigned long int arm_r3;
  46         unsigned long int arm_r4;
  47         unsigned long int arm_r5;
  48         unsigned long int arm_r6;
  49         unsigned long int arm_r7;
  50         unsigned long int arm_r8;
  51         unsigned long int arm_r9;
  52         unsigned long int arm_r10;
  53         unsigned long int arm_fp;
  54         unsigned long int arm_ip;
  55         unsigned long int arm_sp;
  56         unsigned long int arm_lr;
  57         unsigned long int arm_pc;
  58         unsigned long int arm_cpsr;
  59         unsigned long fault_address;
  60       } v21;
  61     struct
  62       {
  63         unsigned long int magic;
  64         struct pt_regs reg;
  65         unsigned long int trap_no;
  66         unsigned long int error_code;
  67         unsigned long int oldmask;
  68       } v20;
  69 };
  70
  71 #define SIGCONTEXT_2_0_MAGIC    0x4B534154
  72
  73 #endif  /* bits/armsigctx.h */