NetBSD/lib/libc/arch/ns32k/sys/brk.S

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/* $NetBSD: brk.S,v 1.7 2000/06/26 06:25:43 kleink Exp $ */
/*
* Copyright (c) 1992 Helsinki University of Technology
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* HELSINKI UNIVERSITY OF TECHNOLOGY ALLOWS FREE USE OF THIS SOFTWARE IN
* ITS "AS IS" CONDITION. HELSINKI UNIVERSITY OF TECHNOLOGY DISCLAIMS ANY
* LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE
* USE OF THIS SOFTWARE.
*/
/*
* HISTORY
* 11-May-92 Johannes Helander (jvh) at Helsinki University of Technology
* Created.
*/
#include "SYS.h"
#if defined(LIBC_SCCS)
RCSID("$NetBSD: brk.S,v 1.7 2000/06/26 06:25:43 kleink Exp $")
#endif
DATA_D(__minbrk, _C_LABEL(end))
ENTRY(_brk)
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PIC_PROLOGUE
cmpd PIC_S_ARG0,PIC_GOT(_C_LABEL(__minbrk))
bge 0f
movd PIC_GOT(_C_LABEL(__minbrk)),PIC_S_ARG0
0: PIC_EPILOGUE
SYSTRAP(break)
bcs _ASM_LABEL(cerror)
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PIC_PROLOGUE
movd PIC_S_ARG0,PIC_GOT(_ASM_LABEL(curbrk))
movqd 0,r0
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PIC_EPILOGUE
ret 0