[LV-kern-commit] CVS: kernel-2.4/arch/vax/lib negdi.c,NONE,1.1 string_user.c,NONE,1.1 Makefile,1.3,1.4

[Kenn H. <ke...@us...>]

Update of /cvsroot/linux-vax/kernel-2.4/arch/vax/lib
In directory usw-pr-cvs1:/tmp/cvs-serv30022

Modified Files:
	Makefile 
Added Files:
	negdi.c string_user.c 
Log Message:
Add temporary implementation of GCC __negdi2 primitive.  Add skeletons
for copy to/from user and str*_user functions


--- NEW FILE ---
/*
 * $Id: negdi.c,v 1.1 2001/02/05 00:08:02 kenn Exp $
 * 
 * Copyright (C) 2001, Kenn Humborg
 * 
 * This is a temporary implementation of GCCs negdi2 primitive.
 * Once we get native support in the compiler, this will be
 * removed from here
 *
 */

long long __negdi2(long long x)
{
	__asm__ volatile (
		"	xorl2 $-1, 4(%0)	\n" /* complement high longword */
		"	mnegl (%0), (%0)	\n" /* negate low longword */
		"	bneq 1f			\n" /* no overflow */
		"	incl 4(%0)		\n" /* inc high longword */
		"1:			"
		: : "r"(&x) : "r0");

	return x;
}

--- NEW FILE ---
/*
 *  $Id: string_user.c,v 1.1 2001/02/05 00:08:02 kenn Exp $
 *
 *  Copyright (C) 2001, Kenn Humborg
 * 
 *  These functions are used to do string operations on user memory
 */

#include <linux/string.h>

#include <linux/kernel.h> /* for panic() */

int __copy_tofrom_user(void *to, const void *from, unsigned long size)
{
	panic("__copy_tofrom_user: not implemented");
}


unsigned long __clear_user(void *addr, unsigned long size)
{
	panic("__clear_user: not implemented");
}


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");
}


extern long __strnlen_user(const char *s, long n)
{
	panic("__strnlen_user: not implemented");
}


Index: Makefile
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/vax/lib/Makefile,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -r1.3 -r1.4
--- Makefile	2001/01/29 01:00:20	1.3
+++ Makefile	2001/02/05 00:08:02	1.4
@@ -10,7 +10,7 @@
 all: libio.a
 
 L_TARGET := libio.a
-obj-y   := string.o console.o
+obj-y   := string.o string_user.o console.o negdi.o
 
 include $(TOPDIR)/Rules.make