Change meaning of VALUE_FRAME_ID; rename to VALUE_NEXT_FRAME_ID

[deliverable/binutils-gdb.git] / gdb / frame.c

diff --git a/gdb/frame.c b/gdb/frame.c
index 54dc833202ad8c36b892f78c5b37bf3e0d150cdd..02635e65ae2c5a4ae148f0c86baba9e07c7361a4 100644 (file)
--- a/gdb/frame.c
+++ b/gdb/frame.c
@@ -2305,6 +2305,22 @@ get_prev_frame (struct frame_info *this_frame)
   return get_prev_frame_always (this_frame);
 }
 
+struct frame_id
+get_prev_frame_id_by_id (struct frame_id id)
+{
+  struct frame_id prev_id;
+  struct frame_info *frame;
+  
+  frame = frame_find_by_id (id);
+
+  if (frame != NULL)
+    prev_id = get_frame_id (get_prev_frame (frame));
+  else
+    prev_id = null_frame_id;
+
+  return prev_id;
+}
+
 CORE_ADDR
 get_frame_pc (struct frame_info *frame)
 {