1/* $NetBSD: compat_Ovfork.S,v 1.3 2020/05/05 06:20:55 skrll Exp $ */ 2 3/* $OpenBSD: Ovfork.S,v 1.7 2001/06/04 23:14:04 mickey Exp $ */ 4 5/* 6 * Copyright (c) 1999,2002 Michael Shalayeff 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT, 22 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 24 * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 26 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 27 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 28 * THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#include "SYS.h" 32 33#if defined(LIBC_SCCS) && !defined(lint) 34 RCSID("$NetBSD: compat_Ovfork.S,v 1.3 2020/05/05 06:20:55 skrll Exp $") 35#endif /* LIBC_SCCS and not lint */ 36 37ENTRY(vfork,0) 38 SYSCALL(vfork) 39 addi -1, %ret1, %ret1 40 bv %r0(%rp) 41 and %ret1, %ret0, %ret0 42EXIT(vfork) 43 44 .end 45