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, Version 1.0 only 6! (the "License"). You may not use this file except in compliance 7! with the License. 8! 9! You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10! or http://www.opensolaris.org/os/licensing. 11! See the License for the specific language governing permissions 12! and limitations under the License. 13! 14! When distributing Covered Code, include this CDDL HEADER in each 15! file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16! If applicable, add the following below this CDDL HEADER, with the 17! fields enclosed by brackets "[]" replaced with your own identifying 18! information: Portions Copyright [yyyy] [name of copyright owner] 19! 20! CDDL HEADER END 21! 22! "%Z%%M% %I% %E% SMI" 23! Copyright (c) 1986 by Sun Microsystems, Inc. 24! 25 .seg ".text" 26 27#include "SYS.h" 28#define ALIGNSIZE 8 29 30#define SYS_brk 17 31 32 .global .curbrk 33 .type .curbrk,#object 34 .size .curbrk,4 35 36 ENTRY(brk) 37 add %o0, (ALIGNSIZE-1), %o0 ! round up new break to a 38 andn %o0, (ALIGNSIZE-1), %o0 ! multiple of alignsize 39 mov %o0, %o2 ! save new break 40 mov SYS_brk, %g1 41 t 8 42 CERROR(o5) 43#ifdef PIC 44 PIC_SETUP(o5) 45 ld [%o5 + .curbrk], %g1 46 st %o2, [%g1] 47#else 48 sethi %hi(.curbrk), %g1 ! save new break 49 st %o2, [%g1 + %lo(.curbrk)] 50#endif 51 RET 52 SET_SIZE(brk) 53