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2001-04-06 David Smith <dsmith@redhat.com>

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* arch-utils.c (default_prepare_to_proceed)
	(generic_prepare_to_proceed): Added new functions.
	* arch-utils.h: New function declarations for
	default_prepare_to_proceed() and generic_prepare_to_proceed().
	* gdbarch.sh: Added PREPARE_TO_PROCEED.
	* gdbarch.c: Regenerated.
	* gdbarch.h: Regenerated.
	* inferior.h: Added get_last_target_status() declaration.
	* infrun.c (get_last_target_status): Added new function.
	(handle_inferior_event): Saves last pid and waitstatus, which will
	get returned by get_last_target_status().

	* hppa-tdep.c (prepare_to_proceed):  Added comment stating that
	prepare_to_proceed() is potentially redundant since
	default_prepare_to_proceed() has been added.
	* linux-thread.c (prepare_to_proceed): Ditto.
	* lin-lwp.c (prepare_to_proceed): Ditto.
	* m3-nat.c (prepare_to_proceed): Ditto.
This commit is contained in:
David Smith
2001-04-06 17:53:39 +00:00
parent 1b2b2c1600
commit e02bc4cc30
12 changed files with 170 additions and 3 deletions
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55
gdb/arch-utils.c
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@ -239,6 +239,61 @@ default_frame_address (struct frame_info *fi)
return fi->frame;
}
/* Default prepare_to_procced(). */
int
default_prepare_to_proceed (int select_it)
{
return 0;
}
/* Generic prepare_to_proceed(). This one should be suitable for most
targets that support threads. */
int
generic_prepare_to_proceed (int select_it)
{
int wait_pid;
struct target_waitstatus wait_status;
/* Get the last target status returned by target_wait(). */
get_last_target_status (&wait_pid, &wait_status);
/* Make sure we were stopped at a breakpoint. */
if (wait_status.kind != TARGET_WAITKIND_STOPPED
|| wait_status.value.sig != TARGET_SIGNAL_TRAP)
{
return 0;
}
if (wait_pid != -1 && inferior_pid != wait_pid)
{
/* Switched over from WAIT_PID. */
CORE_ADDR wait_pc = read_pc_pid (wait_pid);
/* Avoid switching where it wouldn't do any good, i.e. if both
threads are at the same breakpoint. */
if (wait_pc != read_pc () && breakpoint_here_p (wait_pc))
{
if (select_it)
{
/* User hasn't deleted the breakpoint. Switch back to
WAIT_PID and return non-zero. */
inferior_pid = wait_pid;
/* FIXME: This stuff came from switch_to_thread() in
thread.c (which should probably be a public function). */
flush_cached_frames ();
registers_changed ();
stop_pc = wait_pc;
select_frame (get_current_frame (), 0);
}
return 1;
}
}
return 0;
}
/* Functions to manipulate the endianness of the target. */
#ifdef TARGET_BYTE_ORDER_SELECTABLE