1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
/* Copyright (C) 1991, 1992, 1994, 1995, 1997 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 Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <sysdep.h>
#ifndef SYS_brk
#define SYS_brk 17
#endif
#ifndef HAVE_GNU_LD
#define __end _end
#endif
.data
.globl ___curbrk
___curbrk:
.long __end
.text
ENTRY (__brk)
movel #__end, d0
cmpl sp@(4), d0
ble 0f
movel d0, sp@(4)
0: pea SYS_brk
trap #0
bcs 1f
movel sp@(4), ___curbrk
clrl d0
rts
1:
jmp syscall_error
weak_alias (__brk, brk)
|
