add dummy frame destructor

[deliverable/binutils-gdb.git] / gdb / dummy-frame.h

diff --git a/gdb/dummy-frame.h b/gdb/dummy-frame.h
index bac1aac9b07be95f7627aa24f31acf648fa22c79..8c1a1d031543fce885c678dae55a99a1347f352e 100644 (file)
--- a/gdb/dummy-frame.h
+++ b/gdb/dummy-frame.h
@@ -54,4 +54,17 @@ extern void dummy_frame_discard (struct frame_id dummy_id, ptid_t ptid);
 
 extern const struct frame_unwind dummy_frame_unwind;
 
+/* 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
+   register_dummy_frame_dtor for that dummy frame.  */
+typedef void (dummy_frame_dtor_ftype) (void *data);
+extern void register_dummy_frame_dtor (struct frame_id dummy_id, ptid_t ptid,
+                                      dummy_frame_dtor_ftype *dtor,
+                                      void *dtor_data);
+
+/* Return 1 if there exists dummy frame with registered DTOR and DTOR_DATA.
+   Return 0 otherwise.  */
+extern int find_dummy_frame_dtor (dummy_frame_dtor_ftype *dtor,
+                                 void *dtor_data);
+
 #endif /* !defined (DUMMY_FRAME_H)  */