-void (*create_tracepoint_hook) PARAMS ((struct tracepoint *));
-void (*delete_tracepoint_hook) PARAMS ((struct tracepoint *));
-void (*modify_tracepoint_hook) PARAMS ((struct tracepoint *));
+void (*create_tracepoint_hook) (struct tracepoint *);
+void (*delete_tracepoint_hook) (struct tracepoint *);
+void (*modify_tracepoint_hook) (struct tracepoint *);
+void (*trace_find_hook) (char *arg, int from_tty);
+void (*trace_start_stop_hook) (int start, int from_tty);
+
+struct tracepoint *get_tracepoint_by_number (char **, int, int);
+int get_traceframe_number (void);
+void free_actions (struct tracepoint *);
+enum actionline_type validate_actionline (char **, struct tracepoint *);