1/*- 2 * Copyright (c) 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz. 7 * 8 * %sccs.include.redist.c% 9 */ 10 11#if defined(SYSLIBC_SCCS) && !defined(lint) 12 .asciz "@(#)sbrk.s 8.1 (Berkeley) 06/04/93" 13#endif /* SYSLIBC_SCCS and not lint */ 14 15#include "SYS.h" 16 17#define SYS_brk 17 18 19 .globl _end 20 .globl minbrk 21 .globl curbrk 22 23 .data 24minbrk: .long _end 25curbrk: .long _end 26 .text 27 28ENTRY(sbrk) 29 movl 4(%esp),%ecx 30 movl curbrk,%eax 31 addl %eax,4(%esp) 32 lea SYS_brk,%eax 33 LCALL(7,0) 34 jb err 35 movl curbrk,%eax 36 addl %ecx,curbrk 37 ret 38err: 39 jmp cerror 40