[LV-kern-commit] CVS: kernel-2.4/arch/vax/lib strncpy_user.S,NONE,1.1 string_user.c,1.1,1.2 Makefile,1.8,1.9

[Dave A. <ai...@us...>]

Update of /cvsroot/linux-vax/kernel-2.4/arch/vax/lib
In directory usw-pr-cvs1:/tmp/cvs-serv28187

Modified Files:
	string_user.c Makefile 
Added Files:
	strncpy_user.S 
Log Message:
implemented strncpy_from_user... first of many ... copy/to/from should 
be next ... then strnlen

the strncpy bit seems correct .. the fixup/exception table stuff not sure
about


--- NEW FILE ---
/*
 * $ID$
 *
 * Copyright (C) 2001, Dave Airlie
 *
 * VAX Assembly implementation of strncpy_from_user
 */

#include <asm/errno.h>
#include <linux/linkage.h>

/* int __strncpy_from_user(char *dst, const char *src, long count) 
 * Returns number of bytes copied 
 */

	.text
ENTRY(__strncpy_from_user)
	.word 0x3e
	movl 4(ap), r2 /* r2 now has dst */
	movl 8(ap), r3 /* r3 now has src */
	movl 12(ap), r0 /* r0 has count */
	movl r0, r1 /* keep count in r1 */
	beql 2f
1:	movb (r3)+, r4
	movb r4, (r2)+
	cmpb $0, r4
	beql 2f
	sobgtr r1, 1b
2:	subl2 r1, r0
	ret
	.section .fixup, "ax"	
3:	movl r0, -EFAULT
	ret
	.previous
	.section __ex_table, "a"
	.align 4
	.long 1b, 3b
	.previous
Index: string_user.c
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/vax/lib/string_user.c,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- string_user.c	2001/02/05 00:08:02	1.1
+++ string_user.c	2001/03/11 14:00:58	1.2
@@ -22,12 +22,6 @@
 }
 
 
-int __strncpy_from_user(char *dst, const char *src, long count)
-{
-	panic("__strncpy_from_user: not implemented");
-}
-
-
 extern long __strlen_user(const char *s)
 {
 	panic("__strlen_user: not implemented");

Index: Makefile
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/vax/lib/Makefile,v
retrieving revision 1.8
retrieving revision 1.9
diff -u -r1.8 -r1.9
--- Makefile	2001/03/03 13:01:55	1.8
+++ Makefile	2001/03/11 14:00:58	1.9
@@ -12,7 +12,7 @@
 all: libio.a
 
 L_TARGET := libio.a
-obj-y   := string.o string_user.o console.o negdi.o checksum.o lshrdi3.o
+obj-y   := string.o string_user.o console.o negdi.o checksum.o lshrdi3.o strncpy_user.o
 
 include $(TOPDIR)/Rules.make