1*5d9d9091SRichard Lowe/* 2*5d9d9091SRichard Lowe * CDDL HEADER START 3*5d9d9091SRichard Lowe * 4*5d9d9091SRichard Lowe * The contents of this file are subject to the terms of the 5*5d9d9091SRichard Lowe * Common Development and Distribution License (the "License"). 6*5d9d9091SRichard Lowe * You may not use this file except in compliance with the License. 7*5d9d9091SRichard Lowe * 8*5d9d9091SRichard Lowe * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*5d9d9091SRichard Lowe * or http://www.opensolaris.org/os/licensing. 10*5d9d9091SRichard Lowe * See the License for the specific language governing permissions 11*5d9d9091SRichard Lowe * and limitations under the License. 12*5d9d9091SRichard Lowe * 13*5d9d9091SRichard Lowe * When distributing Covered Code, include this CDDL HEADER in each 14*5d9d9091SRichard Lowe * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15*5d9d9091SRichard Lowe * If applicable, add the following below this CDDL HEADER, with the 16*5d9d9091SRichard Lowe * fields enclosed by brackets "[]" replaced with your own identifying 17*5d9d9091SRichard Lowe * information: Portions Copyright [yyyy] [name of copyright owner] 18*5d9d9091SRichard Lowe * 19*5d9d9091SRichard Lowe * CDDL HEADER END 20*5d9d9091SRichard Lowe */ 21*5d9d9091SRichard Lowe 22*5d9d9091SRichard Lowe/* 23*5d9d9091SRichard Lowe * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24*5d9d9091SRichard Lowe * Use is subject to license terms. 25*5d9d9091SRichard Lowe */ 26*5d9d9091SRichard Lowe 27*5d9d9091SRichard Lowe .file "forkx.s" 28*5d9d9091SRichard Lowe 29*5d9d9091SRichard Lowe#include "SYS.h" 30*5d9d9091SRichard Lowe 31*5d9d9091SRichard Lowe/* 32*5d9d9091SRichard Lowe * pid = __forkx(flags); 33*5d9d9091SRichard Lowe * 34*5d9d9091SRichard Lowe * syscall trap: forksys(0, flags) 35*5d9d9091SRichard Lowe * 36*5d9d9091SRichard Lowe * From the syscall: 37*5d9d9091SRichard Lowe * %edx == 0 in parent process, %edx = 1 in child process. 38*5d9d9091SRichard Lowe * %eax == pid of child in parent, %eax == pid of parent in child. 39*5d9d9091SRichard Lowe * 40*5d9d9091SRichard Lowe * The child gets a zero return value. 41*5d9d9091SRichard Lowe * The parent gets the pid of the child. 42*5d9d9091SRichard Lowe */ 43*5d9d9091SRichard Lowe 44*5d9d9091SRichard Lowe ENTRY(__forkx) 45*5d9d9091SRichard Lowe popl %ecx 46*5d9d9091SRichard Lowe pushl $0 47*5d9d9091SRichard Lowe pushl %ecx 48*5d9d9091SRichard Lowe SYSTRAP_2RVALS(forksys) 49*5d9d9091SRichard Lowe popl %ecx 50*5d9d9091SRichard Lowe movl %ecx, 0(%esp) 51*5d9d9091SRichard Lowe SYSCERROR 52*5d9d9091SRichard Lowe testl %edx, %edx 53*5d9d9091SRichard Lowe jz 1f /* jump if parent */ 54*5d9d9091SRichard Lowe xorl %eax, %eax /* child, return (0) */ 55*5d9d9091SRichard Lowe1: 56*5d9d9091SRichard Lowe RET 57*5d9d9091SRichard Lowe SET_SIZE(__forkx) 58