src/fault-hpux-hppa.h

   1 /* Fault handler information.  HP-UX HPPA version.
   2    Copyright (C) 2002  Paolo Bonzini <bonzini@gnu.org>
   3    Copyright (C) 2002-2003  Bruno Haible <bruno@clisp.org>
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 2, or (at your option)
   8    any later version.
   9
  10    This program 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
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to the Free Software Foundation,
  17    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  18
  19 #define USE_64BIT_REGS(mc) \
  20   (((mc).ss_flags & SS_WIDEREGS) && ((mc).ss_flags & SS_NARROWISINVALID))
  21
  22 /* Extract the cr21 register from an mcontext_t.
  23    See the comments in /usr/include/machine/save_state.h.  */
  24 #define GET_CR21(mc) \
  25   (USE_64BIT_REGS(mc) ? (mc).ss_wide.ss_64.ss_cr21 : (mc).ss_narrow.ss_cr21)
  26
  27 /* Extract the stack pointer from an mcontext_t.
  28    See the comments in /usr/include/machine/save_state.h.  */
  29 #define GET_SP(mc) \
  30   (USE_64BIT_REGS(mc) ? (mc).ss_wide.ss_64.ss_sp : (mc).ss_narrow.ss_sp)
  31
  32 /* Both of these alternatives work on HP-UX 10.20 and HP-UX 11.00.  */
  33 #if 1
  34
  35 #include "fault-hpux.h"
  36
  37 #define SIGSEGV_FAULT_ADDRESS  GET_CR21 (scp->sc_sl.sl_ss)
  38 #define SIGSEGV_FAULT_STACKPOINTER  GET_SP (scp->sc_ctxt.sl.sl_ss)
  39
  40 #else
  41
  42 #include "fault-posix.h"
  43
  44 #define SIGSEGV_FAULT_STACKPOINTER  GET_SP (((ucontext_t *) ucp)->uc_mcontext)
  45
  46 #endif