1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22/* Copyright (c) 1988 AT&T */ 23/* All Rights Reserved */ 24 25/* 26 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 27 * Use is subject to license terms. 28 */ 29 30 .file "forkx.s" 31 32#include "SYS.h" 33 34/* 35 * pid = __forkx(flags); 36 * 37 * syscall trap: forksys(0, flags) 38 * 39 * From the syscall: 40 * %o1 == 0 in parent process, %o1 == 1 in child process. 41 * %o0 == pid of child in parent, %o0 == pid of parent in child. 42 * 43 * The child gets a zero return value. 44 * The parent gets the pid of the child. 45 */ 46 47 ENTRY(__forkx) 48 mov %o0, %o1 49 clr %o0 50 SYSTRAP_2RVALS(forksys) 51 SYSCERROR 52 movrnz %o1, 0, %o0 53 RET 54 SET_SIZE(__forkx) 55