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 2004 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 .file "brk.s" 27 28#include "SYS.h" 29 30/* 31 * _brk_unlocked() simply traps into the kernel to set the brk. It 32 * returns 0 if the break was successfully set, or -1 otherwise. 33 * It doesn't enforce any alignment and it doesn't perform any locking. 34 * _brk_unlocked() is only called from brk() and _sbrk_unlocked(). 35 */ 36 37 ENTRY_NP(_brk_unlocked) 38 SYSTRAP_RVAL1(brk) 39 SYSCERROR 40 RETC 41 SET_SIZE(_brk_unlocked) 42