| Current Path : /usr/src/lib/libc/ia64/sys/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //usr/src/lib/libc/ia64/sys/brk.S |
/* $NetBSD: brk.S,v 1.4 1996/10/17 03:08:15 cgd Exp $ */
/*
* Copyright (c) 1994, 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* 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.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#include <machine/asm.h>
__FBSDID("$FreeBSD: release/9.1.0/lib/libc/ia64/sys/brk.S 115084 2003-05-16 21:26:42Z marcel $");
#include "SYS.h"
.globl _end
IMPORT(curbrk, 8)
.data
EXPORT(minbrk)
.quad _end
.text
ENTRY(brk, 1)
add r14=@ltoff(minbrk),gp ;;
ld8 r14=[r14] ;;
ld8 r14=[r14] ;;
cmp.ltu p6,p0=r32,r14 ;;
(p6) mov r32=r14 ;;
st8 [sp]=r32
CALLSYS_ERROR(break)
ld8 r15=[sp]
add r14=@ltoff(curbrk),gp ;;
ld8 r14=[r14] ;;
st8 [r14]=r15
mov ret0=0
br.ret.sptk.few rp
END(brk)