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
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/* $OpenBSD: sbrk.S,v 1.4 2000/01/12 00:08:42 mickey Exp $ */
/*
* Copyright (c) 1999 Michael Shalayeff
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Michael Shalayeff.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "SYS.h"
#ifdef SYSLIBC_SCCS
.space .text
.subspa $code$
.asciz "$OpenBSD: sbrk.S,v 1.4 2000/01/12 00:08:42 mickey Exp $"
.align 4
#endif
.import end, data
.space $PRIVATE$
.subspa $DATA$
.export curbrk, data
curbrk
.long end
ENTRY(sbrk)
ldil L%curbrk, t1
ldw R%curbrk(t1), t2
add t2, arg0, arg0
stw arg0, HPPA_FRAME_ARG(0)(sp)
SYSCALL(break)
comb,<>,n r0, t1, brk$err
ldil L%curbrk, t1
ldw R%curbrk(t1), arg0
ldw HPPA_FRAME_ARG(0)(sp), arg1
stw arg1, R%curbrk(t1)
brk$err
bv r0(rp)
nop
EXIT(sbrk)
.end
|
