sim/common/sim-reason.c

   1 /* Generic simulator stop_reason.
   2    Copyright (C) 1997 Free Software Foundation, Inc.
   3    Contributed by Cygnus Support.
   4
   5 This file is part of GDB, the GNU debugger.
   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 "sim-main.h"
  22 #include "sim-assert.h"
  23
  24 /* Generic implementation of sim_stop_reason */
  25
  26 void
  27 sim_stop_reason (SIM_DESC sd, enum sim_stop *reason, int *sigrc)
  28 {
  29   sim_engine *engine = NULL;
  30   SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
  31   engine = STATE_ENGINE (sd);
  32   *reason = engine->reason;
  33   switch (*reason)
  34     {
  35     case sim_exited :
  36       *sigrc = engine->sigrc;
  37       break;
  38     case sim_signalled :
  39       /* ??? See the comment below case `sim_signalled' in
  40          gdb/remote-sim.c:gdbsim_wait.
  41          ??? Consider the case of the target requesting that it
  42          kill(2) itself with SIGNAL.  That SIGNAL, being target
  43          specific, will not correspond to either of the SIM_SIGNAL
  44          enum nor the HOST_SIGNAL.  A mapping from TARGET_SIGNAL to
  45          HOST_SIGNAL is needed.  */
  46       *sigrc = sim_signal_to_host (sd, engine->sigrc);
  47       break;
  48     case sim_stopped :
  49       /* The gdb/simulator interface calls for us to return the host
  50          version of the signal which gdb then converts into the
  51          target's version.  This is obviously a bit clumsy.  */
  52       *sigrc = sim_signal_to_host (sd, engine->sigrc);
  53       break;
  54     default :
  55       abort ();
  56     }
  57 }