void
sim_resume (SIM_DESC sd,
int step,
int siggnal)
{
sim_engine *engine = STATE_ENGINE (sd);
jmp_buf buf;
int jmpval;
ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
/* we only want to be single stepping the simulator once */
if (engine->stepper != NULL)
{
sim_events_deschedule (sd, engine->stepper);
engine->stepper = NULL;
}
if (step)
engine->stepper = sim_events_schedule (sd, 1, has_stepped, sd);
sim_module_resume (sd);
/* run/resume the simulator */
engine->jmpbuf = &buf;
jmpval = setjmp (buf);
if (jmpval == sim_engine_start_jmpval
|| jmpval == sim_engine_restart_jmpval)
{
int last_cpu_nr = sim_engine_last_cpu_nr (sd);
int next_cpu_nr = sim_engine_next_cpu_nr (sd);
int nr_cpus = sim_engine_nr_cpus (sd);
int sig_to_deliver;
sim_events_preprocess (sd, last_cpu_nr >= nr_cpus, next_cpu_nr >= nr_cpus);
if (next_cpu_nr >= nr_cpus)
next_cpu_nr = 0;
/* Only deliver the SIGGNAL [sic] the first time through - don't
re-deliver any SIGGNAL during a restart. NOTE: A new local
variable is used to avoid problems with the automatic
variable ``siggnal'' being trashed by a long jump. */
if (jmpval == sim_engine_start_jmpval)
sig_to_deliver = siggnal;
else
sig_to_deliver = 0;
#ifdef SIM_CPU_EXCEPTION_RESUME
{
sim_cpu* cpu = STATE_CPU (sd, next_cpu_nr);
SIM_CPU_EXCEPTION_RESUME(sd, cpu, sig_to_deliver);
}
#endif
sim_engine_run (sd, next_cpu_nr, nr_cpus, sig_to_deliver);
}
engine->jmpbuf = NULL;
sim_module_suspend (sd);
}
void
hw_event_queue_deschedule (struct hw *me,
struct hw_event *event_to_remove)
{
/* ZAP the event but only if it is still in the event queue. Note
that event_to_remove is only de-referenced after its validity has
been confirmed. */
struct hw_event_data **prev;
for (prev = &me->events_of_hw;
(*prev) != NULL;
prev = &(*prev)->next)
{
struct hw_event_data *entry = (*prev);
if (&entry->event == event_to_remove)
{
sim_events_deschedule (hw_system (me),
entry->event.real);
(*prev) = entry->next;
hw_free (me, entry);
return;
}
}
}
static SIM_RC
do_watchpoint_delete (SIM_DESC sd,
int ident,
watchpoint_type type)
{
sim_watchpoints *watch = STATE_WATCHPOINTS (sd);
sim_watch_point **entry = &watch->points;
SIM_RC status = SIM_RC_FAIL;
while ((*entry) != NULL)
{
if ((*entry)->ident == ident
|| (*entry)->type == type)
{
sim_watch_point *dead = (*entry);
(*entry) = (*entry)->next;
sim_events_deschedule (sd, dead->event);
free (dead);
status = SIM_RC_OK;
}
else
entry = &(*entry)->next;
}
return status;
}
void
sim_resume (SIM_DESC sd, int step, int siggnal)
{
sim_engine *engine = STATE_ENGINE (sd);
jmp_buf buf;
int jmpval;
ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
/* we only want to be single stepping the simulator once */
if (engine->stepper != NULL)
{
sim_events_deschedule (sd, engine->stepper);
engine->stepper = NULL;
}
if (step)
engine->stepper = sim_events_schedule (sd, 1, has_stepped, sd);
sim_module_resume (sd);
#if WITH_SCACHE
if (USING_SCACHE_P (sd))
scache_flush (sd);
#endif
/* run/resume the simulator */
sim_engine_set_run_state (sd, sim_running, 0);
engine->jmpbuf = &buf;
jmpval = setjmp (buf);
if (jmpval == sim_engine_start_jmpval
|| jmpval == sim_engine_restart_jmpval)
{
int last_cpu_nr = sim_engine_last_cpu_nr (sd);
int next_cpu_nr = sim_engine_next_cpu_nr (sd);
int nr_cpus = sim_engine_nr_cpus (sd);
/* ??? Setting max_insns to 0 allows pbb/jit code to run wild and is
useful if all one wants to do is run a benchmark. Need some better
way to identify this case. */
int max_insns = (step
? 1
: (nr_cpus == 1
/*&& wip:no-events*/
/* Don't do this if running under gdb, need to
poll ui for events. */
&& STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE)
? 0
: 8); /*FIXME: magic number*/
int fast_p = STATE_RUN_FAST_P (sd);
sim_events_preprocess (sd, last_cpu_nr >= nr_cpus, next_cpu_nr >= nr_cpus);
if (next_cpu_nr >= nr_cpus)
next_cpu_nr = 0;
if (nr_cpus == 1)
engine_run_1 (sd, max_insns, fast_p);
else
engine_run_n (sd, next_cpu_nr, nr_cpus, max_insns, fast_p);
}
#if 1 /*wip*/
else
{
/* Account for the last insn executed. */
SIM_CPU *cpu = STATE_CPU (sd, sim_engine_last_cpu_nr (sd));
++ CPU_INSN_COUNT (cpu);
CGEN_TRACE_INSN_FINI (cpu, NULL, 1);
}
#endif
engine->jmpbuf = NULL;
{
int i;
int nr_cpus = sim_engine_nr_cpus (sd);
#if 0 /*wip,ignore*/
/* If the loop exits, either we single-stepped or @cpu@_engine_stop
was called. */
if (step)
sim_engine_set_run_state (sd, sim_stopped, SIM_SIGTRAP);
else
sim_engine_set_run_state (sd, pending_reason, pending_sigrc);
#endif
for (i = 0; i < nr_cpus; ++i)
{
SIM_CPU *cpu = STATE_CPU (sd, i);
PROFILE_TOTAL_INSN_COUNT (CPU_PROFILE_DATA (cpu)) += CPU_INSN_COUNT (cpu);
}
}
sim_module_suspend (sd);
}
void
sim_resume (SIM_DESC sd,
int step,
int siggnal)
{
sim_engine *engine = STATE_ENGINE (sd);
jmp_buf buf;
int jmpval;
ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
/* we only want to be single stepping the simulator once */
if (engine->stepper != NULL)
{
sim_events_deschedule (sd, engine->stepper);
engine->stepper = NULL;
}
sim_module_resume (sd);
/* run/resume the simulator */
engine->jmpbuf = &buf;
jmpval = setjmp (buf);
if (jmpval == sim_engine_start_jmpval
|| jmpval == sim_engine_restart_jmpval)
{
int last_cpu_nr = sim_engine_last_cpu_nr (sd);
int next_cpu_nr = sim_engine_next_cpu_nr (sd);
int nr_cpus = sim_engine_nr_cpus (sd);
sim_events_preprocess (sd, last_cpu_nr >= nr_cpus, next_cpu_nr >= nr_cpus);
if (next_cpu_nr >= nr_cpus)
next_cpu_nr = 0;
/* Only deliver the siggnal ]sic] the first time through - don't
re-deliver any siggnal during a restart. */
if (jmpval == sim_engine_restart_jmpval)
siggnal = 0;
/* Install the stepping event after having processed some
pending events. This is necessary for HC11/HC12 simulator
because the tick counter is incremented by the number of cycles
the instruction took. Some pending ticks to process can still
be recorded internally by the simulator and sim_events_preprocess
will handle them. If the stepping event is inserted before,
these pending ticks will raise the event and the simulator will
stop without having executed any instruction. */
if (step)
engine->stepper = sim_events_schedule (sd, 0, has_stepped, sd);
#ifdef SIM_CPU_EXCEPTION_RESUME
{
sim_cpu* cpu = STATE_CPU (sd, next_cpu_nr);
SIM_CPU_EXCEPTION_RESUME(sd, cpu, siggnal);
}
#endif
sim_engine_run (sd, next_cpu_nr, nr_cpus, siggnal);
}
engine->jmpbuf = NULL;
sim_module_suspend (sd);
}
