Split part of delete_breakpoint into delete_breakpoint_at
diff --git a/breakpoint.h b/breakpoint.h
index d329642..3c9de9e 100644
--- a/breakpoint.h
+++ b/breakpoint.h
@@ -145,7 +145,8 @@
* - proc_remove_breakpoint
* - breakpoint_destroy
* XXX */
-void delete_breakpoint(struct process *proc, void *addr);
+void delete_breakpoint_at(struct process *proc, void *addr);
+int delete_breakpoint(struct process *proc, struct breakpoint *bp);
/* XXX some of the following belongs to proc.h/proc.c. */
struct breakpoint *address2bpstruct(struct process *proc, void *addr);