From 1ed239e88a57ca7211745ceff4e0d6e365ca1426 Mon Sep 17 00:00:00 2001
From: "Todd C. Miller" <millert@cvs.openbsd.org>
Date: Sun, 30 Apr 2000 18:48:59 +0000
Subject: Add memcpy() and memcmp() emulation by swapping the first 2 args and
 then calling the b* routine.  This code only gets call when the kernel is
 build w/o -O* since otherwise gcc uses its own inline routines.

---
 sys/arch/i386/i386/locore.s | 28 +++++++++++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

(limited to 'sys/arch/i386')

diff --git a/sys/arch/i386/i386/locore.s b/sys/arch/i386/i386/locore.s
index 78ff759f110..d02dfe137aa 100644
--- a/sys/arch/i386/i386/locore.s
+++ b/sys/arch/i386/i386/locore.s
@@ -1,4 +1,4 @@
-/*	$OpenBSD: locore.s,v 1.48 1999/03/08 23:47:26 downsj Exp $	*/
+/*	$OpenBSD: locore.s,v 1.49 2000/04/30 18:48:58 millert Exp $	*/
 /*	$NetBSD: locore.s,v 1.145 1996/05/03 19:41:19 christos Exp $	*/
 
 /*-
@@ -891,6 +891,32 @@ ENTRY(bcopy)
 	cld
 	ret
 
+/*
+ * Emulate memcpy() by swapping the first two arguments and calling bcopy()
+ */
+ENTRY(memcpy)
+	pushl	%esi
+	movl	12(%esp),%ecx
+	movl	16(%esp),%esi
+	movl	%esi,12(%esp)
+	movl	%ecx,16(%esp)
+	call	_bcopy
+	popl	%esi
+	ret
+
+/*
+ * Emulate memcmp() by swapping the first two arguments and calling bcmp()
+ */
+ENTRY(memcmp)
+	pushl	%esi
+	movl	12(%esp),%ecx
+	movl	16(%esp),%esi
+	movl	%esi,12(%esp)
+	movl	%ecx,16(%esp)
+	call	_bcmp
+	popl	%esi
+	ret
+
 /*****************************************************************************/
 
 /*
-- 
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