diff --git a/sys/kern/kern_descrip.c b/sys/kern/kern_descrip.c
--- a/sys/kern/kern_descrip.c
+++ b/sys/kern/kern_descrip.c
@@ -107,6 +107,9 @@
 
 static int	closefp(struct filedesc *fdp, int fd, struct file *fp,
 		    struct thread *td, bool holdleaders, bool audit);
+static void	export_file_to_kinfo(struct file *fp, int fd,
+		    cap_rights_t *rightsp, struct kinfo_file *kif,
+		    struct filedesc *fdp, int flags);
 static int	fd_first_free(struct filedesc *fdp, int low, int size);
 static void	fdgrowtable(struct filedesc *fdp, int nfd);
 static void	fdgrowtable_exp(struct filedesc *fdp, int nfd);