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| author | Markus Metzger <markus.t.metzger@intel.com> | 2015-09-07 10:00:46 +0200 |
|---|---|---|
| committer | Markus Metzger <markus.t.metzger@intel.com> | 2015-09-18 14:26:28 +0200 |
| commit | d1988021e345c990f4272843577529a123f8943d (patch) | |
| tree | d225ad7c1289a2739c3d74d695327d437a60f60e | |
| parent | a6b5be76f94664406def040d79ac8bc4d4aa8bd0 (diff) | |
| download | fsf-binutils-gdb-d1988021e345c990f4272843577529a123f8943d.zip fsf-binutils-gdb-d1988021e345c990f4272843577529a123f8943d.tar.gz fsf-binutils-gdb-d1988021e345c990f4272843577529a123f8943d.tar.bz2 | |
infrun: switch to NO_HISTORY thread
A thread that runs out of its execution history is stopped. We already set
stop_pc and call stop_waiting. But we do not switch to the stopped thread.
In normal_stop, we call finish_thread_state_cleanup to set a thread's running
state. In all-stop mode, we call it with minus_one_ptid; in non-stop mode, we
only call it for inferior_ptid.
If in non-stop mode normal_stop is called on behalf of a thread that is not
inferior_ptid, that other thread will still be reported as running. If it is
actually stopped it can't be resumed again.
Record targets traditionally don't support non-stop and only resume
inferior_ptid. So this has not been a problem, so far.
Switch to the eventing thread for NO_HISTORY events as preparation to support
non-stop for the record btrace target.
gdb/
* infrun.c (handle_inferior_event_1): Switch to the eventing thread
in the TARKET_WAITKIND_NO_HISTORY case.
| -rw-r--r-- | gdb/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/infrun.c | 8 |
2 files changed, 12 insertions, 1 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index be86243..82aade9 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,10 @@ 2015-09-18 Markus Metzger <markus.t.metzger@intel.com> + * infrun.c (handle_inferior_event_1): Switch to the eventing thread + in the TARKET_WAITKIND_NO_HISTORY case. + +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. diff --git a/gdb/infrun.c b/gdb/infrun.c index 8175fb1..75ac80a 100644 --- a/gdb/infrun.c +++ b/gdb/infrun.c @@ -5126,8 +5126,14 @@ Cannot fill $_exitsignal with the correct signal number.\n")); fprintf_unfiltered (gdb_stdlog, "infrun: TARGET_WAITKIND_NO_HISTORY\n"); /* Reverse execution: target ran out of history info. */ + /* Switch to the stopped thread. */ + if (!ptid_equal (ecs->ptid, inferior_ptid)) + context_switch (ecs->ptid); + if (debug_infrun) + fprintf_unfiltered (gdb_stdlog, "infrun: stopped\n"); + delete_just_stopped_threads_single_step_breakpoints (); - stop_pc = regcache_read_pc (get_thread_regcache (ecs->ptid)); + stop_pc = regcache_read_pc (get_thread_regcache (inferior_ptid)); observer_notify_no_history (); stop_waiting (ecs); return; |