extern const struct frame_unwind dummy_frame_unwind;
-/* Destructor for dummy_frame. DATA is supplied by registrant. */
-typedef void (dummy_frame_dtor_ftype) (void *data);
+/* Destructor for dummy_frame. DATA is supplied by registrant.
+ REGISTERS_VALID is 1 for dummy_frame_pop, 0 for dummy_frame_discard. */
+typedef void (dummy_frame_dtor_ftype) (void *data, int registers_valid);
/* Call DTOR with DTOR_DATA when DUMMY_ID frame of thread PTID gets discarded.
Dummy frame with DUMMY_ID must exist. There must be no other call of