diff options
Diffstat (limited to 'gdb/thread-db.c')
| -rw-r--r-- | gdb/thread-db.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/gdb/thread-db.c b/gdb/thread-db.c index a54f9fb..d989c49 100644 --- a/gdb/thread-db.c +++ b/gdb/thread-db.c @@ -573,6 +573,9 @@ attach_thread (ptid_t ptid, const td_thrhandle_t *th_p, tp->private = xmalloc (sizeof (struct private_thread_info)); tp->private->lwpid = ti_p->ti_lid; + if (ti_p->ti_state == TD_THR_UNKNOWN) + return;/* A zombie thread that's been joined -- do not attach. */ + /* Under Linux, we have to attach to each and every thread. */ #ifdef ATTACH_LWP ATTACH_LWP (BUILD_LWP (ti_p->ti_lid, GET_PID (ptid)), 0); @@ -894,11 +897,12 @@ thread_db_mourn_inferior (void) static int thread_db_thread_alive (ptid_t ptid) { + td_thrhandle_t th; + td_thrinfo_t ti; + td_err_e err; + if (is_thread (ptid)) { - td_thrhandle_t th; - td_err_e err; - err = td_ta_map_id2thr_p (thread_agent, GET_THREAD (ptid), &th); if (err != TD_OK) return 0; @@ -907,6 +911,13 @@ thread_db_thread_alive (ptid_t ptid) if (err != TD_OK) return 0; + err = td_thr_get_info_p (&th, &ti); + if (err != TD_OK) + return 0; + + if (ti.ti_state == TD_THR_UNKNOWN) + return 0; /* A zombie thread that's been joined. */ + return 1; } @@ -927,6 +938,9 @@ find_new_threads_callback (const td_thrhandle_t *th_p, void *data) if (err != TD_OK) error ("Cannot get thread info: %s", thread_db_err_str (err)); + if (ti.ti_state == TD_THR_UNKNOWN) + return 0; /* A zombie that's been reaped -- ignore. */ + ptid = BUILD_THREAD (ti.ti_tid, GET_PID (inferior_ptid)); if (! in_thread_list (ptid)) |