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/* Simulator signal support

   Copyright (C) 1997, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.

   Contributed by Cygnus Support

This file is part of the GNU Simulators.

This program is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 3 of the License, or

(at your option) any later version.

This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#include <signal.h>

#include "sim-main.h"

/* Convert SIM_SIGFOO to SIGFOO.

   What to do when the host doesn't have SIGFOO is handled on a case by case

   basis.  Generally, in the case of passing a value back to gdb, we want gdb

   to not think the process has died (so it can be debugged at the point of

   failure).  */

#ifdef _WIN32

#ifndef SIGTRAP

#define SIGTRAP 5

#endif

#ifndef SIGBUS

#define SIGBUS 10

#endif

#ifndef SIGQUIT

#define SIGQUIT 3

#endif

#endif

int

sim_signal_to_host (SIM_DESC sd, SIM_SIGNAL sig)

{

  switch (sig)

    {

    case SIM_SIGINT :

      return SIGINT;

    case SIM_SIGABRT :

      return SIGABRT;

    case SIM_SIGILL :

#ifdef SIGILL

      return SIGILL;

#else

      return SIGSEGV;

#endif

    case SIM_SIGTRAP :

      return SIGTRAP;

    case SIM_SIGBUS :

#ifdef SIGBUS

      return SIGBUS;

#else

      return SIGSEGV;

#endif

    case SIM_SIGSEGV :

      return SIGSEGV;

    case SIM_SIGXCPU :

#ifdef SIGXCPU

      return SIGXCPU;

#endif

      break;

    case SIM_SIGFPE:

#ifdef SIGFPE

      return SIGFPE;

#endif

      break;

    case SIM_SIGNONE:

      return 0;

      break;

    }

  sim_io_eprintf (sd, "sim_signal_to_host: unknown signal: %d\n", sig);

#ifdef SIGHUP

  return SIGHUP;  /* FIXME: Suggestions?  */

#else

  return 1;

#endif

}

enum target_signal

sim_signal_to_target (SIM_DESC sd, SIM_SIGNAL sig)

{

  switch (sig)

    {

    case SIM_SIGINT :

      return TARGET_SIGNAL_INT;

    case SIM_SIGABRT :

      return TARGET_SIGNAL_ABRT;

    case SIM_SIGILL :

      return TARGET_SIGNAL_ILL;

    case SIM_SIGTRAP :

      return TARGET_SIGNAL_TRAP;

    case SIM_SIGBUS :

      return TARGET_SIGNAL_BUS;

    case SIM_SIGSEGV :

      return TARGET_SIGNAL_SEGV;

    case SIM_SIGXCPU :

      return TARGET_SIGNAL_XCPU;

    case SIM_SIGFPE:

      return TARGET_SIGNAL_FPE;

      break;

    case SIM_SIGNONE:

      return TARGET_SIGNAL_0;

      break;

    }

  sim_io_eprintf (sd, "sim_signal_to_host: unknown signal: %d\n", sig);

  return TARGET_SIGNAL_HUP;

}