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/* Copyright (C) 1992, 1995 Free Software Foundation, Inc.
Contributed by Brendan Kehoe (brendan@zen.org).
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
#ifndef HAVE_GNU_LD
#define __end end
#endif
.data
.sdata
ENTRY(__curbrk)
.word __end
.text
.set noreorder
.set noat
ENTRY(__brk)
/* Minimum is one page. */
lui v0, 4096
lw v0, __end
nop
/* If they ask for less than a page, givvem the whole
thing anyway. */
sltu AT, a0, v0
beq AT, zero, down1
nop
move a0, v0
down1:
li v0, SYS_brk
syscall
bne a3, zero, error
/* Update __curbrk and exit cleanly. */
lui AT, 4096
sw a0, __curbrk
j ra
move v0, zero
/* What a horrible way to die. */
error: j syscall_error
nop
nop
nop
weak_alias (__brk, brk)
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