diff --git a/lib/csu/aarch64/crti.S b/lib/csu/aarch64/crti.S
index 13e3b74642d8..af10c0f00d7d 100644
--- a/lib/csu/aarch64/crti.S
+++ b/lib/csu/aarch64/crti.S
@@ -1,48 +1,48 @@
 /*-
  * Copyright 2001 David E. O'Brien
  * Copyright 2014 The FreeBSD Foundation
  * All rights reserved.
  *
  * Portions of this software were developed by Andrew Turner
  * under sponsorship from the FreeBSD Foundation.
  *
  * 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 ``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 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 <machine/asm.h>
 __FBSDID("$FreeBSD$");
 
 	.section .init,"ax",@progbits
 	.align 4
 	.globl	_init
 	.type	_init,@function
 _init:
-	sub	sp, sp, #16
-	str	lr, [sp]
+	stp	x29, x30, [sp, #-16]!
+	mov	x29, sp
 
 	.section .fini,"ax",@progbits
 	.align 4
 	.globl	_fini
 	.type	_fini,@function
 _fini:
-	sub	sp, sp, #16
-	str	lr, [sp]
+	stp	x29, x30, [sp, #-16]!
+	mov	x29, sp
 
diff --git a/lib/csu/aarch64/crtn.S b/lib/csu/aarch64/crtn.S
index ebb59b710412..c62433537f36 100644
--- a/lib/csu/aarch64/crtn.S
+++ b/lib/csu/aarch64/crtn.S
@@ -1,44 +1,42 @@
 /*-
  * Copyright 2001 David E. O'Brien
  * Copyright 2014 The FreeBSD Foundation
  * All rights reserved.
  *
  * Portions of this software were developed by Andrew Turner
  * under sponsorship from the FreeBSD Foundation.
  *
  * 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 ``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 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 <machine/asm.h>
 __FBSDID("$FreeBSD$");
 
 	.section .init,"ax",@progbits
-	ldr	lr, [sp]
-	add	sp, sp, #16
+	ldp	x29, x30, [sp], #16
 	ret
 
 
 	.section .fini,"ax",@progbits
-	ldr	lr, [sp]
-	add	sp, sp, #16
+	ldp	x29, x30, [sp], #16
 	ret
 
 	.section .note.GNU-stack,"",%progbits