convert to_mourn_inferior

2014-02-19  Tom Tromey  <tromey@redhat.com>

	* target-delegates.c: Rebuild.
	* target.c (default_mourn_inferior): New function.
	(target_mourn_inferior): Unconditionally delegate.
	* target.h (struct target_ops) <to_mourn_inferior>: Use
	TARGET_DEFAULT_FUNC.

gdb/ChangeLog

@@ -1,3 +1,11 @@
+2014-02-19  Tom Tromey  <tromey@redhat.com>
+
+	* target-delegates.c: Rebuild.
+	* target.c (default_mourn_inferior): New function.
+	(target_mourn_inferior): Unconditionally delegate.
+	* target.h (struct target_ops) <to_mourn_inferior>: Use
+	TARGET_DEFAULT_FUNC.
+
 2014-02-19  Tom Tromey  <tromey@redhat.com>
 
 	* target-delegates.c: Rebuild.

gdb/target-delegates.c

@@ -510,6 +510,13 @@ tdefault_has_exited (struct target_ops *self, int arg1, int arg2, int *arg3)
   return 0;
 }
 
+static void
+delegate_mourn_inferior (struct target_ops *self)
+{
+  self = self->beneath;
+  self->to_mourn_inferior (self);
+}
+
 static char *
 delegate_extra_thread_info (struct target_ops *self, struct thread_info *arg1)
 {
@@ -1247,6 +1254,8 @@ install_delegators (struct target_ops *ops)
     ops->to_set_syscall_catchpoint = delegate_set_syscall_catchpoint;
   if (ops->to_has_exited == NULL)
     ops->to_has_exited = delegate_has_exited;
+  if (ops->to_mourn_inferior == NULL)
+    ops->to_mourn_inferior = delegate_mourn_inferior;
   if (ops->to_extra_thread_info == NULL)
     ops->to_extra_thread_info = delegate_extra_thread_info;
   if (ops->to_thread_name == NULL)
@@ -1403,6 +1412,7 @@ install_dummy_methods (struct target_ops *ops)
   ops->to_remove_exec_catchpoint = tdefault_remove_exec_catchpoint;
   ops->to_set_syscall_catchpoint = tdefault_set_syscall_catchpoint;
   ops->to_has_exited = tdefault_has_exited;
+  ops->to_mourn_inferior = default_mourn_inferior;
   ops->to_extra_thread_info = tdefault_extra_thread_info;
   ops->to_thread_name = tdefault_thread_name;
   ops->to_stop = tdefault_stop;

gdb/target.c

@@ -63,6 +63,8 @@ static ptid_t default_get_ada_task_ptid (struct target_ops *self,
 static int default_follow_fork (struct target_ops *self, int follow_child,
 				int detach_fork);
 
+static void default_mourn_inferior (struct target_ops *self);
+
 static void tcomplain (void) ATTRIBUTE_NORETURN;
 
 static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *);
@@ -2660,16 +2662,17 @@ target_follow_fork (int follow_child, int detach_fork)
   return retval;
 }
 
+static void
+default_mourn_inferior (struct target_ops *self)
+{
+  internal_error (__FILE__, __LINE__,
+		  _("could not find a target to follow mourn inferior"));
+}
+
 void
 target_mourn_inferior (void)
 {
-  struct target_ops *t;
+  current_target.to_mourn_inferior (&current_target);
-
-  for (t = current_target.beneath; t != NULL; t = t->beneath)
-    {
-      if (t->to_mourn_inferior != NULL)	
-	{
-	  t->to_mourn_inferior (t);
   if (targetdebug)
     fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n");
 
@@ -2677,13 +2680,6 @@ target_mourn_inferior (void)
      Make sure to release them to avoid unnecessarily locking any
      of them while we're not actually debugging.  */
   bfd_cache_close_all ();
-
-	  return;
-	}
-    }
-
-  internal_error (__FILE__, __LINE__,
-		  _("could not find a target to follow mourn inferior"));
 }
 
 /* Look for a target which can describe architectural features, starting

gdb/target.h

@@ -544,7 +544,8 @@ struct target_ops
       TARGET_DEFAULT_RETURN (1);
     int (*to_has_exited) (struct target_ops *, int, int, int *)
       TARGET_DEFAULT_RETURN (0);
-    void (*to_mourn_inferior) (struct target_ops *);
+    void (*to_mourn_inferior) (struct target_ops *)
+      TARGET_DEFAULT_FUNC (default_mourn_inferior);
     int (*to_can_run) (struct target_ops *);
 
     /* Documentation of this routine is provided with the corresponding