185518Sjake/* 285518Sjake * Copyright (c) 1992, 1993 385518Sjake * The Regents of the University of California. All rights reserved. 485518Sjake * 585518Sjake * This software was developed by the Computer Systems Engineering group 685518Sjake * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 785518Sjake * contributed to Berkeley. 885518Sjake * 985518Sjake * Redistribution and use in source and binary forms, with or without 1085518Sjake * modification, are permitted provided that the following conditions 1185518Sjake * are met: 1285518Sjake * 1. Redistributions of source code must retain the above copyright 1385518Sjake * notice, this list of conditions and the following disclaimer. 1485518Sjake * 2. Redistributions in binary form must reproduce the above copyright 1585518Sjake * notice, this list of conditions and the following disclaimer in the 1685518Sjake * documentation and/or other materials provided with the distribution. 1785518Sjake * 4. Neither the name of the University nor the names of its contributors 1885518Sjake * may be used to endorse or promote products derived from this software 1985518Sjake * without specific prior written permission. 2085518Sjake * 2185518Sjake * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2285518Sjake * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2385518Sjake * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2485518Sjake * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2585518Sjake * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2685518Sjake * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2785518Sjake * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2885518Sjake * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2985518Sjake * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3085518Sjake * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3185518Sjake * SUCH DAMAGE. 3285518Sjake * 3385518Sjake * from: Header: brk.s,v 1.3 92/06/25 12:56:05 mccanne Exp 3485518Sjake */ 3585518Sjake 3685518Sjake#if defined(SYSLIBC_SCCS) && !defined(lint) 3799116Sobrien .asciz "@(#)brk.s 8.1 (Berkeley) 6/4/93" 3885518Sjake#if 0 3985518Sjake RCSID("$NetBSD: brk.S,v 1.9 2000/07/25 20:15:40 mycroft Exp $") 4085518Sjake#endif 4185518Sjake#endif /* SYSLIBC_SCCS and not lint */ 4299116Sobrien#include <machine/asm.h> 4399116Sobrien__FBSDID("$FreeBSD$"); 4485518Sjake 4585518Sjake#include "SYS.h" 4685518Sjake 4785518Sjake .globl HIDENAME(curbrk) 4885518Sjake .globl HIDENAME(minbrk) 4985518Sjake 5085518Sjake_SYSENTRY(brk) 5185518Sjake PIC_PROLOGUE(%o3, %o2) 5285518Sjake SET(HIDENAME(minbrk), %o2, %o3) 5385518Sjake ldx [%o3], %o4 5485518Sjake cmp %o4, %o0 5585518Sjake movg %xcc, %o4, %o0 5685518Sjake mov %o0, %o4 5785518Sjake mov SYS_break, %g1 5885518Sjake ta %xcc, ST_SYSCALL 5985518Sjake bcc,a,pt %xcc, 1f 6085518Sjake nop 6185518Sjake ERROR() 6285518Sjake1: SET(HIDENAME(curbrk), %o2, %o3) 6385518Sjake retl 6485518Sjake stx %o4, [%o3] 6586536Sjake_SYSEND(brk) 66