| 1 |
578 |
markom |
/* Generic simulator resume.
|
| 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 |
|
|
/* Halt the simulator after just one instruction */
|
| 25 |
|
|
|
| 26 |
|
|
static void
|
| 27 |
|
|
has_stepped (SIM_DESC sd,
|
| 28 |
|
|
void *data)
|
| 29 |
|
|
{
|
| 30 |
|
|
ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
|
| 31 |
|
|
sim_engine_halt (sd, NULL, NULL, NULL_CIA, sim_stopped, SIM_SIGTRAP);
|
| 32 |
|
|
}
|
| 33 |
|
|
|
| 34 |
|
|
|
| 35 |
|
|
/* Generic resume - assumes the existance of sim_engine_run */
|
| 36 |
|
|
|
| 37 |
|
|
void
|
| 38 |
|
|
sim_resume (SIM_DESC sd,
|
| 39 |
|
|
int step,
|
| 40 |
|
|
int siggnal)
|
| 41 |
|
|
{
|
| 42 |
|
|
sim_engine *engine = STATE_ENGINE (sd);
|
| 43 |
|
|
jmp_buf buf;
|
| 44 |
|
|
int jmpval;
|
| 45 |
|
|
|
| 46 |
|
|
ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
|
| 47 |
|
|
|
| 48 |
|
|
/* we only want to be single stepping the simulator once */
|
| 49 |
|
|
if (engine->stepper != NULL)
|
| 50 |
|
|
{
|
| 51 |
|
|
sim_events_deschedule (sd, engine->stepper);
|
| 52 |
|
|
engine->stepper = NULL;
|
| 53 |
|
|
}
|
| 54 |
|
|
if (step)
|
| 55 |
|
|
engine->stepper = sim_events_schedule (sd, 1, has_stepped, sd);
|
| 56 |
|
|
|
| 57 |
|
|
sim_module_resume (sd);
|
| 58 |
|
|
|
| 59 |
|
|
/* run/resume the simulator */
|
| 60 |
|
|
engine->jmpbuf = &buf;
|
| 61 |
|
|
jmpval = setjmp (buf);
|
| 62 |
|
|
if (jmpval == sim_engine_start_jmpval
|
| 63 |
|
|
|| jmpval == sim_engine_restart_jmpval)
|
| 64 |
|
|
{
|
| 65 |
|
|
int last_cpu_nr = sim_engine_last_cpu_nr (sd);
|
| 66 |
|
|
int next_cpu_nr = sim_engine_next_cpu_nr (sd);
|
| 67 |
|
|
int nr_cpus = sim_engine_nr_cpus (sd);
|
| 68 |
|
|
|
| 69 |
|
|
sim_events_preprocess (sd, last_cpu_nr >= nr_cpus, next_cpu_nr >= nr_cpus);
|
| 70 |
|
|
if (next_cpu_nr >= nr_cpus)
|
| 71 |
|
|
next_cpu_nr = 0;
|
| 72 |
|
|
|
| 73 |
|
|
/* Only deliver the siggnal ]sic] the first time through - don't
|
| 74 |
|
|
re-deliver any siggnal during a restart. */
|
| 75 |
|
|
if (jmpval == sim_engine_restart_jmpval)
|
| 76 |
|
|
siggnal = 0;
|
| 77 |
|
|
|
| 78 |
|
|
#ifdef SIM_CPU_EXCEPTION_RESUME
|
| 79 |
|
|
{
|
| 80 |
|
|
sim_cpu* cpu = STATE_CPU (sd, next_cpu_nr);
|
| 81 |
|
|
SIM_CPU_EXCEPTION_RESUME(sd, cpu, siggnal);
|
| 82 |
|
|
}
|
| 83 |
|
|
#endif
|
| 84 |
|
|
|
| 85 |
|
|
sim_engine_run (sd, next_cpu_nr, nr_cpus, siggnal);
|
| 86 |
|
|
}
|
| 87 |
|
|
engine->jmpbuf = NULL;
|
| 88 |
|
|
|
| 89 |
|
|
sim_module_suspend (sd);
|
| 90 |
|
|
}
|
