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glibc  2.9
init-fault.c
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00001 /* Set up a thread_state for proc_handle_exceptions.  MIPS version.
00002    Copyright (C) 1996, 1997 Free Software Foundation, Inc.
00003    This file is part of the GNU C Library.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #include <hurd/signal.h>
00021 #include <mach/thread_status.h>
00022 #include <string.h>
00023 #include <setjmp.h>
00024 
00025 extern jmp_buf _hurd_sigthread_fault_env;
00026 
00027 static char fault_stack[32];
00028 static volatile void
00029 faulted (void)
00030 {
00031   __longjmp (_hurd_sigthread_fault_env, 1);
00032 }
00033 
00034 void
00035 _hurd_initialize_fault_recovery_state (void *state)
00036 {
00037   struct mips_thread_state *ts = state;
00038   memset (ts, 0, sizeof (*ts));
00039   ts->r29 = (int) &fault_stack[sizeof (fault_stack)];
00040   ts->pc = (int) &faulted;
00041 }