/* Simulator signal support

   Copyright (C) 1997-2018 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 gdb_signal

sim_signal_to_gdb_signal (SIM_DESC sd, SIM_SIGNAL sig)

{

  switch (sig)

    {

    case SIM_SIGINT :

      return GDB_SIGNAL_INT;

    case SIM_SIGABRT :

      return GDB_SIGNAL_ABRT;

    case SIM_SIGILL :

      return GDB_SIGNAL_ILL;

    case SIM_SIGTRAP :

      return GDB_SIGNAL_TRAP;

    case SIM_SIGBUS :

      return GDB_SIGNAL_BUS;

    case SIM_SIGSEGV :

      return GDB_SIGNAL_SEGV;

    case SIM_SIGXCPU :

      return GDB_SIGNAL_XCPU;

    case SIM_SIGFPE:

      return GDB_SIGNAL_FPE;

      break;

    case SIM_SIGNONE:

      return GDB_SIGNAL_0;

      break;

    }

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

  return GDB_SIGNAL_HUP;

}