i386_set_ldt.c revision 21673
1/* 2 * Copyright (c) 1993 John Brezak 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $FreeBSD: head/lib/libc/i386/sys/i386_set_ldt.c 21673 1997-01-14 07:20:47Z jkh $ 29 */ 30 31#if defined(LIBC_RCS) && !defined(lint) 32static const char rcsid[] = "$FreeBSD: head/lib/libc/i386/sys/i386_set_ldt.c 21673 1997-01-14 07:20:47Z jkh $"; 33#endif /* LIBC_RCS and not lint */ 34 35#include <sys/cdefs.h> 36#include <machine/segments.h> 37#include <machine/sysarch.h> 38 39struct parms { 40 int start; 41 union descriptor *descs; 42 int num; 43}; 44 45int 46i386_set_ldt(int start, union descriptor *descs, int num) 47{ 48 struct parms p; 49 50 p.start = start; 51 p.descs = descs; 52 p.num = num; 53 54 return sysarch(I386_SET_LDT, (char *)&p); 55} 56