gdb/

	* infrun.c (infrun_thread_thread_exit): New.
	(_initialize_infrun): Attach it to the thread_exit observer.
	* thread.c (delete_thread_1): Always call the observer, passing it
	the silent flag.
	* mi/mi-interp.c (mi_thread_exit): Add "silent" parameter.  If
	SILENT, return immediately.

gdb/doc/
	* observer.texi (thread_exit): Add "silent" parameter.

6 files changed, 38 insertions, 9 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 393f269..42623a9 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,12 @@
+2000-03-25  Pedro Alves  <pedro@codesourcery.com>
+
+	* infrun.c (infrun_thread_thread_exit): New.
+	(_initialize_infrun): Attach it to the thread_exit observer.
+	* thread.c (delete_thread_1): Always call the observer, passing it
+	the silent flag.
+	* mi/mi-interp.c (mi_thread_exit): Add "silent" parameter.  If
+	SILENT, return immediately.
+
 2009-03-25  Pedro Alves  <pedro@codesourcery.com>
 
 	* infrun.c (normal_stop): Use has_stack_frames instead of
diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog
index d86674a..2c4b291 100644
--- a/gdb/doc/ChangeLog
+++ b/gdb/doc/ChangeLog
@@ -1,3 +1,7 @@
+2009-03-25  Pedro Alves  <pedro@codesourcery.com>
+
+	* observer.texi (thread_exit): Add "silent" parameter.
+
 2009-03-22  Pedro Alves  <pedro@codesourcery.com>
 
 	* observer.texi (about_to_proceed): New.
diff --git a/gdb/doc/observer.texi b/gdb/doc/observer.texi
index f0fc6f4..4984f31 100644
--- a/gdb/doc/observer.texi
+++ b/gdb/doc/observer.texi
@@ -134,8 +134,10 @@ previously loaded symbol table data has now been invalidated.
 The thread specified by @var{t} has been created.
 @end deftypefun
 
-@deftypefun void thread_exit (struct thread_info *@var{t})
-The thread specified by @var{t} has exited.
+@deftypefun void thread_exit (struct thread_info *@var{t}, int @var{silent})
+The thread specified by @var{t} has exited.  The @var{silent} argument
+indicates that @value{GDBN} is removing the thread from its tables
+without wanting to notify the user about it.
 @end deftypefun
 
 @deftypefun void thread_stop_requested (ptid_t @var{ptid})
diff --git a/gdb/infrun.c b/gdb/infrun.c
index 4e270fc..7a9f4e9 100644
--- a/gdb/infrun.c
+++ b/gdb/infrun.c
@@ -1691,6 +1691,15 @@ infrun_thread_stop_requested (ptid_t ptid)
   iterate_over_threads (infrun_thread_stop_requested_callback, &ptid);
 }
 
+void nullify_last_target_wait_ptid (void);
+
+static void
+infrun_thread_thread_exit (struct thread_info *tp, int silent)
+{
+  if (ptid_equal (target_last_wait_ptid, tp->ptid))
+    nullify_last_target_wait_ptid ();
+}
+
 /* Callback for iterate_over_threads.  */
 
 static int
@@ -5575,6 +5584,7 @@ Options are 'forward' or 'reverse'."),
 
   observer_attach_thread_ptid_changed (infrun_thread_ptid_changed);
   observer_attach_thread_stop_requested (infrun_thread_stop_requested);
+  observer_attach_thread_exit (infrun_thread_thread_exit);
 
   /* Explicitly create without lookup, since that tries to create a
      value with a void typed value, and when we get here, gdbarch
diff --git a/gdb/mi/mi-interp.c b/gdb/mi/mi-interp.c
index dee921f..4775eec 100644
--- a/gdb/mi/mi-interp.c
+++ b/gdb/mi/mi-interp.c
@@ -55,7 +55,7 @@ static void mi_remove_notify_hooks (void);
 static void mi_on_normal_stop (struct bpstats *bs, int print_frame);
 
 static void mi_new_thread (struct thread_info *t);
-static void mi_thread_exit (struct thread_info *t);
+static void mi_thread_exit (struct thread_info *t, int silent);
 static void mi_new_inferior (int pid);
 static void mi_inferior_exit (int pid);
 static void mi_on_resume (ptid_t ptid);
@@ -293,9 +293,14 @@ mi_new_thread (struct thread_info *t)
 }
 
 static void
-mi_thread_exit (struct thread_info *t)
+mi_thread_exit (struct thread_info *t, int silent)
 {
-  struct mi_interp *mi = top_level_interpreter_data ();
+  struct mi_interp *mi;
+
+  if (silent)
+    return;
+
+  mi = top_level_interpreter_data ();
   target_terminal_ours ();
   fprintf_unfiltered (mi->event_channel, 
 		      "thread-exited,id=\"%d\",group-id=\"%d\"", 
diff --git a/gdb/thread.c b/gdb/thread.c
index fc3df61..eaef50e 100644
--- a/gdb/thread.c
+++ b/gdb/thread.c
@@ -247,8 +247,7 @@ delete_thread_1 (ptid_t ptid, int silent)
     {
       if (tp->state_ != THREAD_EXITED)
 	{
-	  if (!silent)
-	    observer_notify_thread_exit (tp);
+	  observer_notify_thread_exit (tp, silent);
 
 	  /* Tag it as exited.  */
 	  tp->state_ = THREAD_EXITED;
@@ -267,8 +266,8 @@ delete_thread_1 (ptid_t ptid, int silent)
     thread_list = tp->next;
 
   /* Notify thread exit, but only if we haven't already.  */
-  if (!silent && tp->state_ != THREAD_EXITED)
-    observer_notify_thread_exit (tp);
+  if (tp->state_ != THREAD_EXITED)
+    observer_notify_thread_exit (tp, silent);
 
   free_thread (tp);
 }