sim/common/sim-signal.c

   1 /* Simulator signal support
   2    Copyright (C) 1997 Free Software Foundation, Inc.
   3    Contributed by Cygnus Support
   4
   5 This file is part of the GNU Simulators.
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License along
  18 with this program; if not, write to the Free Software Foundation, Inc.,
  19 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  20
  21 #include <signal.h>
  22 #include "sim-main.h"
  23
  24 /* Convert SIM_SIGFOO to SIGFOO.
  25    What to do when the host doesn't have SIGFOO is handled on a case by case
  26    basis.  Generally, in the case of passing a value back to gdb, we want gdb
  27    to not think the process has died (so it can be debugged at the point of
  28    failure).  */
  29
  30 #ifdef _MSC_VER
  31 #ifndef SIGTRAP
  32 #define SIGTRAP 5
  33 #endif
  34 #ifndef SIGBUS
  35 #define SIGBUS 10
  36 #endif
  37 #endif
  38
  39 int
  40 sim_signal_to_host (SIM_DESC sd, SIM_SIGNAL sig)
  41 {
  42   switch (sig)
  43     {
  44     case SIM_SIGINT :
  45       return SIGINT;
  46
  47     case SIM_SIGABRT :
  48       return SIGABRT;
  49
  50     case SIM_SIGILL :
  51 #ifdef SIGILL
  52       return SIGILL;
  53 #else
  54       return SIGSEGV;
  55 #endif
  56
  57     case SIM_SIGTRAP :
  58       return SIGTRAP;
  59
  60     case SIM_SIGBUS :
  61 #ifdef SIGBUS
  62       return SIGBUS;
  63 #else
  64       return SIGSEGV;
  65 #endif
  66
  67     case SIM_SIGSEGV :
  68       return SIGSEGV;
  69
  70     case SIM_SIGXCPU :
  71 #ifdef SIGXCPU
  72       return SIGXCPU;
  73 #endif
  74       break;
  75
  76     case SIM_SIGFPE:
  77 #ifdef SIGXCPU
  78       return SIGFPE;
  79 #endif
  80       break;
  81
  82     case SIM_SIGNONE:
  83       return 0;
  84       break;
  85     }
  86
  87   sim_io_eprintf (sd, "sim_signal_to_host: unknown signal: %d\n", sig);
  88 #ifdef SIGHUP
  89   return SIGHUP;  /* FIXME: Suggestions?  */
  90 #else
  91   return 1;
  92 #endif
  93 }