static void
realloc_register_cache (struct inferior_list_entry *thread_p)
{
struct thread_info *thread = (struct thread_info *) thread_p;
struct regcache *regcache
= (struct regcache *) inferior_regcache_data (thread);
if (regcache != NULL)
regcache_invalidate_one (thread_p);
free_register_cache (regcache);
set_inferior_regcache_data (thread, new_register_cache ());
}
static void
fbsd_resume_one_process (struct inferior_list_entry *entry,
int step, int signal)
{
struct process_info *process = (struct process_info *) entry;
struct thread_info *saved_inferior;
if (process->stopped == 0)
return;
/* If we have pending signals or status, and a new signal, enqueue the
signal. Also enqueue the signal if we are waiting to reinsert a
breakpoint; it will be picked up again below. */
if (signal != 0
&& (process->status_pending_p || process->pending_signals != NULL
|| process->bp_reinsert != 0))
{
struct pending_signals *p_sig;
p_sig = malloc (sizeof (*p_sig));
p_sig->prev = process->pending_signals;
p_sig->signal = signal;
process->pending_signals = p_sig;
}
if (process->status_pending_p && !check_removed_breakpoint (process))
return;
saved_inferior = current_inferior;
current_inferior = get_process_thread (process);
if (debug_threads)
fprintf (stderr, "Resuming process %d (%s, signal %d, stop %s)\n", inferior_pid,
step ? "step" : "continue", signal,
process->stop_expected ? "expected" : "not expected");
/* This bit needs some thinking about. If we get a signal that
we must report while a single-step reinsert is still pending,
we often end up resuming the thread. It might be better to
(ew) allow a stack of pending events; then we could be sure that
the reinsert happened right away and not lose any signals.
Making this stack would also shrink the window in which breakpoints are
uninserted (see comment in fbsd_wait_for_process) but not enough for
complete correctness, so it won't solve that problem. It may be
worthwhile just to solve this one, however. */
if (process->bp_reinsert != 0)
{
if (debug_threads)
fprintf (stderr, " pending reinsert at %08lx", (long)process->bp_reinsert);
if (step == 0)
fprintf (stderr, "BAD - reinserting but not stepping.\n");
step = 1;
/* Postpone any pending signal. It was enqueued above. */
signal = 0;
}
check_removed_breakpoint (process);
if (debug_threads && the_low_target.get_pc != NULL)
{
fprintf (stderr, " ");
(long) (*the_low_target.get_pc) ();
}
/* If we have pending signals, consume one unless we are trying to reinsert
a breakpoint. */
if (process->pending_signals != NULL && process->bp_reinsert == 0)
{
struct pending_signals **p_sig;
p_sig = &process->pending_signals;
while ((*p_sig)->prev != NULL)
p_sig = &(*p_sig)->prev;
signal = (*p_sig)->signal;
free (*p_sig);
*p_sig = NULL;
}
regcache_invalidate_one ((struct inferior_list_entry *)
get_process_thread (process));
errno = 0;
process->stopped = 0;
process->stepping = step;
ptrace (step ? PT_STEP : PT_CONTINUE, process->lwpid, (PTRACE_ARG3_TYPE) 1, signal);
current_inferior = saved_inferior;
if (errno)
perror_with_name ("ptrace");
}
