mirror/binutils-gdb
2
0
Fork 0
mirror of https://sourceware.org/git/binutils-gdb.git synced 2024-12-09 04:21:49 +08:00
Code Issues Packages Projects Releases Wiki Activity

btrace: async

Browse Source 
The record btrace target runs synchronous with GDB.  That is, GDB steps
resumed threads in record btrace's to_wait method.  Without GDB calling
to_wait, nothing happens 'on the target'.

Check for further expected events in to_wait before reporting the current
event and mark record btrace's async event handler in async mode.

gdb/
	* record-btrace.c (record_btrace_maybe_mark_async_event): New.
	(record_btrace_wait): Call record_btrace_maybe_mark_async_event.
This commit is contained in:
Markus Metzger 2015-08-27 16:24:38 +02:00
parent ec71cc2fc6
commit a6b5be76f9
2 changed files with 32 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
gdb/ChangeLog
View File

@ -1,3 +1,8 @@
2015-09-18 Markus Metzger <markus.t.metzger@intel.com>
* record-btrace.c (record_btrace_maybe_mark_async_event): New.
(record_btrace_wait): Call record_btrace_maybe_mark_async_event.
2015-09-18 Markus Metzger <markus.t.metzger@intel.com>
* record-btrace.c (get_thread_current_frame): New.

27
gdb/record-btrace.c
View File

@ -2240,6 +2240,29 @@ record_btrace_step_thread (struct thread_info *tp)
typedef struct thread_info * tp_t;
DEF_VEC_P (tp_t);
/* Announce further events if necessary. */
static void
record_btrace_maybe_mark_async_event (const VEC (tp_t) *moving,
const VEC (tp_t) *no_history)
{
int more_moving, more_no_history;
more_moving = !VEC_empty (tp_t, moving);
more_no_history = !VEC_empty (tp_t, no_history);
if (!more_moving && !more_no_history)
return;
if (more_moving)
DEBUG ("movers pending");
if (more_no_history)
DEBUG ("no-history pending");
mark_async_event_handler (record_btrace_async_inferior_event_handler);
}
/* The to_wait method of target record-btrace. */
static ptid_t
@ -2355,6 +2378,10 @@ record_btrace_wait (struct target_ops *ops, ptid_t ptid,
ALL_NON_EXITED_THREADS (tp)
record_btrace_cancel_resume (tp);
/* In async mode, we need to announce further events. */
if (target_is_async_p ())
record_btrace_maybe_mark_async_event (moving, no_history);
/* Start record histories anew from the current position. */
record_btrace_clear_histories (&eventing->btrace);