src/fault-linux-powerpc.h

   1 /* Fault handler information.  Linux/PowerPC version when it supports POSIX.
   2    Copyright (C) 2002, 2009  Bruno Haible <bruno@clisp.org>
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 2, or (at your option)
   7    any later version.
   8
   9    This program 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
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; if not, write to the Free Software Foundation,
  16    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  17
  18 #include "fault-posix-ucontext.h"
  19
  20 /* See glibc/sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h
  21    and the definition of GET_STACK in
  22    glibc/sysdeps/unix/sysv/linux/powerpc/sigcontextinfo.h.
  23    Note that the 'mcontext_t' defined in
  24    glibc/sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h,
  25    the 'struct sigcontext' defined in <asm/sigcontext.h>,
  26    and the 'struct pt_regs' defined in <asm/ptrace.h>
  27    are quite different types.  */
  28
  29 #if __WORDSIZE == 32
  30 /* both should be equivalent */
  31 # if 0
  32 #  define SIGSEGV_FAULT_STACKPOINTER  ((ucontext_t *) ucp)->uc_mcontext.regs->gpr[1]
  33 # else
  34 #  define SIGSEGV_FAULT_STACKPOINTER  ((ucontext_t *) ucp)->uc_mcontext.uc_regs->gregs[1]
  35 # endif
  36 #else
  37 # define SIGSEGV_FAULT_STACKPOINTER  ((ucontext_t *) ucp)->uc_mcontext.gp_regs[1]
  38 #endif