* thread-db.c (ALWAYS_UPDATE_THREAD_LIST): Define to be 0.

	(handle_thread_db_event): Update thread list upon receipt of
	TD_CREATE or TD_DEATH events.
	(thread_db_check_child_state): Potentially disable, depending upon
	value of ALWAYS_UPDATE_THREAD_LIST, the thread list update.
	(thread_db_check_child_state): Update thread list for signal based
	event model too.

diff --git a/rda/unix/ChangeLog b/rda/unix/ChangeLog
index f8e14a9..2ef2ec7 100644 (file)
--- a/rda/unix/ChangeLog
+++ b/rda/unix/ChangeLog
@@ -1,3 +1,13 @@
+2005-11-04  Kevin Buettner  <kevinb@redhat.com>
+
+       * thread-db.c (ALWAYS_UPDATE_THREAD_LIST): Define to be 0.
+       (handle_thread_db_event): Update thread list upon receipt of
+       TD_CREATE or TD_DEATH events.
+       (thread_db_check_child_state): Potentially disable, depending upon
+       value of ALWAYS_UPDATE_THREAD_LIST, the thread list update.
+       (thread_db_check_child_state): Update thread list for signal based
+       event model too.
+
 2005-08-23  Kevin Buettner  <kevinb@redhat.com>
 
        * configure.in (am33_2.0*linux*): New target.

diff --git a/rda/unix/thread-db.c b/rda/unix/thread-db.c
index 4e4af7b..ab890c5 100644 (file)
--- a/rda/unix/thread-db.c
+++ b/rda/unix/thread-db.c
@@ -48,6 +48,8 @@
 int thread_db_noisy = 0;
 int proc_service_noisy = 0;
 
+#define ALWAYS_UPDATE_THREAD_LIST 0
+
 /*
  * A tiny local symbol table.
  *
@@ -1779,6 +1781,7 @@ handle_thread_db_event (struct child_process *process)
   struct gdbserv_thread *thread = process->event_thread;
   lwpid_t lwp;
   union wait w;
+  int do_update = 0;
 
   /* We need to be actually using the event interface.  */
   if (! using_thread_db_events)
@@ -1812,13 +1815,16 @@ handle_thread_db_event (struct child_process *process)
          break;
        }
 
-      /* The only messages we're concerned with are TD_CREATE and
-        TD_DEATH.
+      if (msg.event == TD_CREATE || msg.event == TD_DEATH)
+       do_update = 1;
+    }
 
-        Every time thread_db_check_child_state gets a wait status
-        from waitpid, we call update_thread_list, so our list is
-        always up to date; we don't actually need to do anything with
-        these messages for our own sake.  */
+  if (do_update)
+    {
+#if !ALWAYS_UPDATE_THREAD_LIST
+      /* Update the thread list.  */
+      update_thread_list (process);
+#endif
     }
 
   /* Disable the event breakpoints while we step the thread across them.  */
@@ -2122,9 +2128,11 @@ thread_db_check_child_state (struct child_process *process)
                     process->stop_signal,
                     (unsigned long) debug_get_pc (process->serv, process->pid));
 
+#if ALWAYS_UPDATE_THREAD_LIST
          /* Update the thread list, and attach to (and thereby stop)
              any new threads we find.  */
          update_thread_list (process);
+#endif
 
          process->event_thread = thread_list_lookup_by_lid (process->pid);
 
@@ -2170,6 +2178,12 @@ thread_db_check_child_state (struct child_process *process)
                    process->stop_signal = restart_signal;
                  else                          /* not main thread */
                    process->stop_signal = 0;
+
+#if !ALWAYS_UPDATE_THREAD_LIST
+                 /* Update the thread list.  */
+                 update_thread_list (process);
+#endif
+
                }
              process->signal_to_send = process->stop_signal;
              currentvec->continue_program (serv);