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| author | Markus Metzger <markus.t.metzger@intel.com> | 2015-08-27 16:24:38 +0200 |
|---|---|---|
| committer | Markus Metzger <markus.t.metzger@intel.com> | 2015-09-18 14:25:39 +0200 |
| commit | a6b5be76f94664406def040d79ac8bc4d4aa8bd0 (patch) | |
| tree | 99c18650842cebe60a97d8e9c2e371915db6d83c | |
| parent | ec71cc2fc6d319ebe4aebbe65a6a56ea1376200e (diff) | |
| download | gdb-a6b5be76f94664406def040d79ac8bc4d4aa8bd0.zip gdb-a6b5be76f94664406def040d79ac8bc4d4aa8bd0.tar.gz gdb-a6b5be76f94664406def040d79ac8bc4d4aa8bd0.tar.bz2 | |
btrace: async
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.
| -rw-r--r-- | gdb/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/record-btrace.c | 27 |
2 files changed, 32 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 4c6d0e1..be86243 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,10 @@ 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. (record_btrace_start_replaying): Call get_thread_current_frame. diff --git a/gdb/record-btrace.c b/gdb/record-btrace.c index 0514471..764b349 100644 --- a/gdb/record-btrace.c +++ b/gdb/record-btrace.c @@ -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); |