diff --git a/stand/common/load_elf.c b/stand/common/load_elf.c
--- a/stand/common/load_elf.c
+++ b/stand/common/load_elf.c
@@ -272,6 +272,7 @@
 		close(ef->fd);
 		return (ENOMEM);
 	}
+	preload(ef->fd);
 #ifdef LOADER_VERIEXEC_VECTX
 	{
 		int verror;
diff --git a/stand/libsa/Makefile b/stand/libsa/Makefile
--- a/stand/libsa/Makefile
+++ b/stand/libsa/Makefile
@@ -132,7 +132,7 @@
 
 # io routines
 SRCS+=	closeall.c dev.c ioctl.c nullfs.c stat.c mount.c \
-	fstat.c close.c lseek.c open.c read.c write.c readdir.c
+	fstat.c close.c lseek.c open.c read.c write.c readdir.c preload.c
 
 # SMBios routines
 SRCS+=	smbios.c
diff --git a/stand/libsa/preload.c b/stand/libsa/preload.c
new file mode 100644
--- /dev/null
+++ b/stand/libsa/preload.c
@@ -0,0 +1,45 @@
+/*-
+ * Copyright (c) 2021 Beckhoff Automation GmbH & Co. KG
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include "stand.h"
+
+void
+preload(int fd)
+{
+	struct open_file *f;
+
+	f = fd2open_file(fd);
+	if (f == NULL) {
+		errno = EBADF;
+		return;
+	}
+	if (f->f_ops->fo_preload)
+		(f->f_ops->fo_preload)(f);
+}
diff --git a/stand/libsa/stand.h b/stand/libsa/stand.h
--- a/stand/libsa/stand.h
+++ b/stand/libsa/stand.h
@@ -111,6 +111,7 @@
     off_t	(*fo_seek)(struct open_file *f, off_t offset, int where);
     int		(*fo_stat)(struct open_file *f, struct stat *sb);
     int		(*fo_readdir)(struct open_file *f, struct dirent *d);
+    int		(*fo_preload)(struct open_file *f);
     int		(*fo_mount)(const char *, const char *, void **);
     int		(*fo_unmount)(const char *, void *);
 };
@@ -300,6 +301,7 @@
 extern ssize_t	read(int, void *, size_t);
 extern ssize_t	write(int, const void *, size_t);
 extern struct	dirent *readdirfd(int);
+extern void	preload(int);
 
 extern void	srandom(unsigned int);
 extern long	random(void);