glibc/sysdeps/unix/arm/brk.S
1997-06-12 21:22:18 +00:00

44 lines
1.2 KiB
ArmAsm

/* Copyright (C) 1991, 1992, 1993, 1995 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <sysdep.h>
#ifndef SYS_brk
#define SYS_brk 17
#endif
.data
.globl C_SYMBOL_NAME(__curbrk)
C_LABEL(__curbrk)
#ifdef HAVE_GNU_LD
.long C_SYMBOL_NAME(_end)
#else
.long C_SYMBOL_NAME(end)
#endif
.text
SYSCALL__ (brk, 1)
ldr r1, _cb_addr
str r0, [r1]
mov r0, $0
RETINSTR(mov, pc, r14)
_cb_addr: .long C_SYMBOL_NAME(__curbrk)
weak_alias (__brk, brk)