[LV-kern-commit] CVS: kernel-2.4/arch/vax/lib clear_user.S,NONE,1.1 Makefile,1.11,1.12

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

Update of /cvsroot/linux-vax/kernel-2.4/arch/vax/lib
In directory usw-pr-cvs1:/tmp/cvs-serv29071

Modified Files:
	Makefile 
Added Files:
	clear_user.S 
Log Message:
add clear user .. finished user access .. now to optimise at some stage


--- NEW FILE ---
/*
 * $Id: clear_user.S,v 1.1 2001/03/14 22:31:05 airlied Exp $
 *
 * Copyright (C) 2001, Dave Airlie
 *
 * VAX Assembly implementation of clear_user
 */

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

/* unsigned long __clear_user(void *addr, unsigned long size); 
 * number of bytes not cleared is returned
 */

#define EX(insn, addr, reg, handler) \
9:	insn	addr, reg; \
	.section __ex_table, "a"; \
	.long 9b, handler; \
	.previous 

	.text
ENTRY(__clear_user)
	.word 0x3e
	movl 4(ap), r1 /* r1 now has addr */
	movl 8(ap), r1 /* r0 has size */
	beql 2f
1:	EX(movb, (r1)+, 0, fault)
	sobgtr r0, 1
2:	ret

	.section .fixup, "ax"
fault:	ret
	.previous
Index: Makefile
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/vax/lib/Makefile,v
retrieving revision 1.11
retrieving revision 1.12
diff -u -r1.11 -r1.12
--- Makefile	2001/03/11 23:54:31	1.11
+++ Makefile	2001/03/14 22:31:05	1.12
@@ -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 strncpy_user.o copy_tofrom_user.o strnlen_user.o
+obj-y   := string.o console.o negdi.o checksum.o lshrdi3.o strncpy_user.o copy_tofrom_user.o strnlen_user.o clear_user.o
 
 include $(TOPDIR)/Rules.make