Move lookup_selected_frame to frame.c

This function is now external, and isn't really threads related.  Move
it to frame.c.

gdb/ChangeLog:

	* thread.c (lookup_selected_frame): Move ...
	* frame.c (lookup_selected_frame): ... here.

Change-Id: Ia96b79c15767337c68efd3358bcc715ce8e26c15

1 files changed, 0 insertions, 63 deletions

diff --git a/gdb/thread.c b/gdb/thread.c
index 193f9d4..32d14e8 100644
--- a/gdb/thread.c
+++ b/gdb/thread.c
@@ -1328,69 +1328,6 @@ switch_to_thread (process_stratum_target *proc_target, ptid_t ptid)
 /* See frame.h.  */
 
 void
-lookup_selected_frame (struct frame_id a_frame_id, int frame_level)
-{
-  struct frame_info *frame = NULL;
-  int count;
-
-  /* This either means there was no selected frame, or the selected
-     frame was the current frame.  In either case, select the current
-     frame.  */
-  if (frame_level == -1)
-    {
-      select_frame (get_current_frame ());
-      return;
-    }
-
-  /* select_frame never saves 0 in SELECTED_FRAME_LEVEL, so we
-     shouldn't see it here.  */
-  gdb_assert (frame_level > 0);
-
-  /* Restore by level first, check if the frame id is the same as
-     expected.  If that fails, try restoring by frame id.  If that
-     fails, nothing to do, just warn the user.  */
-
-  count = frame_level;
-  frame = find_relative_frame (get_current_frame (), &count);
-  if (count == 0
-      && frame != NULL
-      /* The frame ids must match - either both valid or both outer_frame_id.
-	 The latter case is not failsafe, but since it's highly unlikely
-	 the search by level finds the wrong frame, it's 99.9(9)% of
-	 the time (for all practical purposes) safe.  */
-      && frame_id_eq (get_frame_id (frame), a_frame_id))
-    {
-      /* Cool, all is fine.  */
-      select_frame (frame);
-      return;
-    }
-
-  frame = frame_find_by_id (a_frame_id);
-  if (frame != NULL)
-    {
-      /* Cool, refound it.  */
-      select_frame (frame);
-      return;
-    }
-
-  /* Nothing else to do, the frame layout really changed.  Select the
-     innermost stack frame.  */
-  select_frame (get_current_frame ());
-
-  /* Warn the user.  */
-  if (frame_level > 0 && !current_uiout->is_mi_like_p ())
-    {
-      warning (_("Couldn't restore frame #%d in "
-		 "current thread.  Bottom (innermost) frame selected:"),
-	       frame_level);
-      /* For MI, we should probably have a notification about
-	 current frame change.  But this error is not very
-	 likely, so don't bother for now.  */
-      print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1);
-    }
-}
-
-void
 scoped_restore_current_thread::restore ()
 {
   /* If an entry of thread_info was previously selected, it won't be