diff options
Diffstat (limited to 'gdbserver')
| -rw-r--r-- | gdbserver/thread-db.cc | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/gdbserver/thread-db.cc b/gdbserver/thread-db.cc index 6e0e222..bf98ca9 100644 --- a/gdbserver/thread-db.cc +++ b/gdbserver/thread-db.cc @@ -155,30 +155,35 @@ thread_db_state_str (td_thr_state_e state) } #endif -/* Get thread info about PTID, accessing memory via the current - thread. */ +/* Get thread info about PTID. */ static int find_one_thread (ptid_t ptid) { - td_thrhandle_t th; - td_thrinfo_t ti; - td_err_e err; - struct lwp_info *lwp; - struct thread_db *thread_db = current_process ()->priv->thread_db; - int lwpid = ptid.lwp (); - thread_info *thread = find_thread_ptid (ptid); - lwp = get_thread_lwp (thread); + lwp_info *lwp = get_thread_lwp (thread); if (lwp->thread_known) return 1; - /* Get information about this thread. */ - err = thread_db->td_ta_map_lwp2thr_p (thread_db->thread_agent, lwpid, &th); + /* Get information about this thread. libthread_db will need to read some + memory, which will be done on the current process, so make PTID's process + the current one. */ + process_info *proc = find_process_pid (ptid.pid ()); + gdb_assert (proc != nullptr); + + scoped_restore_current_thread restore_thread; + switch_to_process (proc); + + thread_db *thread_db = proc->priv->thread_db; + td_thrhandle_t th; + int lwpid = ptid.lwp (); + td_err_e err = thread_db->td_ta_map_lwp2thr_p (thread_db->thread_agent, lwpid, + &th); if (err != TD_OK) error ("Cannot get thread handle for LWP %d: %s", lwpid, thread_db_err_str (err)); + td_thrinfo_t ti; err = thread_db->td_thr_get_info_p (&th, &ti); if (err != TD_OK) error ("Cannot get thread info for LWP %d: %s", |