1/*-
2 * Copyright (c) 2002 Peter Grehan.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26/* $NetBSD: brk.S,v 1.9 2000/06/26 06:25:43 kleink Exp $ */
27
28#include <machine/asm.h>
| 1/*-
2 * Copyright (c) 2002 Peter Grehan.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26/* $NetBSD: brk.S,v 1.9 2000/06/26 06:25:43 kleink Exp $ */
27
28#include <machine/asm.h>
|
29__FBSDID("$FreeBSD: head/lib/libc/powerpc64/sys/brk.S 217398 2011-01-14 11:33:40Z kib $");
| 29__FBSDID("$FreeBSD: head/lib/libc/powerpc64/sys/brk.S 218824 2011-02-18 21:44:53Z nwhitehorn $");
|
30
31#include "SYS.h"
32
33 .globl HIDENAME(curbrk)
34 .globl HIDENAME(minbrk)
35 .globl CNAME(_end)
36
37 .data
38 .align 3
39HIDENAME(minbrk):
40 .llong CNAME(_end)
41
42 .text
43
44ENTRY(brk)
45 addis %r6,%r2,HIDENAME(minbrk)@toc@ha
46 ld %r6,HIDENAME(minbrk)@toc@l(%r6)
47 cmpld %r6,%r3 /* if (minbrk <= r3) */
48 bgt 0f
49 mr %r6,%r3 /* r6 = r3 */
500:
51 mr %r3,%r6 /* new break value */
52 li %r0,SYS_break
53 sc /* assume, that r5 is kept */
54 bso 1f
55
56 /* record new break */
57 addis %r7,%r2,HIDENAME(curbrk)@toc@ha
58 std %r6,HIDENAME(curbrk)@toc@l(%r7)
59
60 blr /* return 0 */
61
621:
63 mflr %r0
64 std %r0,16(%r1)
65 stdu %r1,-48(%r1)
| 30
31#include "SYS.h"
32
33 .globl HIDENAME(curbrk)
34 .globl HIDENAME(minbrk)
35 .globl CNAME(_end)
36
37 .data
38 .align 3
39HIDENAME(minbrk):
40 .llong CNAME(_end)
41
42 .text
43
44ENTRY(brk)
45 addis %r6,%r2,HIDENAME(minbrk)@toc@ha
46 ld %r6,HIDENAME(minbrk)@toc@l(%r6)
47 cmpld %r6,%r3 /* if (minbrk <= r3) */
48 bgt 0f
49 mr %r6,%r3 /* r6 = r3 */
500:
51 mr %r3,%r6 /* new break value */
52 li %r0,SYS_break
53 sc /* assume, that r5 is kept */
54 bso 1f
55
56 /* record new break */
57 addis %r7,%r2,HIDENAME(curbrk)@toc@ha
58 std %r6,HIDENAME(curbrk)@toc@l(%r7)
59
60 blr /* return 0 */
61
621:
63 mflr %r0
64 std %r0,16(%r1)
65 stdu %r1,-48(%r1)
|
66 bl PIC_PLT(HIDENAME(cerror))
| 66 bl HIDENAME(cerror)
|
67 nop
68 ld %r1,0(%r1)
69 ld %r0,16(%r1)
70 mtlr %r0
71 blr
72
73 .section .note.GNU-stack,"",%progbits
| 67 nop
68 ld %r1,0(%r1)
69 ld %r0,16(%r1)
70 mtlr %r0
71 blr
72
73 .section .note.GNU-stack,"",%progbits
|