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: sbrk.S,v 1.8 2000/06/26 06:25:44 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: sbrk.S,v 1.8 2000/06/26 06:25:44 kleink Exp $ */
27
28#include <machine/asm.h>
|
29__FBSDID("$FreeBSD: head/lib/libc/powerpc64/sys/sbrk.S 215147 2010-11-11 22:35:42Z dim $");
| 29__FBSDID("$FreeBSD: head/lib/libc/powerpc64/sys/sbrk.S 217398 2011-01-14 11:33:40Z kib $");
|
30
31#include "SYS.h"
32
33 .globl HIDENAME(curbrk)
34 .globl CNAME(_end)
35
36 .data
37 .align 3
38HIDENAME(curbrk):
39 .llong CNAME(_end)
40
41 .text
42ENTRY(sbrk)
43 addis %r5,%r2,HIDENAME(curbrk)@toc@ha
44 addi %r5,%r5,HIDENAME(curbrk)@toc@l
45 ld %r6,0(%r5) /* r6 = old break */
46 cmpdi %r3,0 /* sbrk(0) - return curbrk */
47 beq 1f
48 add %r3,%r3,%r6
49 mr %r7,%r3 /* r7 = new break */
50 li %r0,SYS_break
51 sc /* break(new_break) */
52 bso 2f
53 std %r7,0(%r5)
541:
55 mr %r3,%r6 /* set return value */
56 blr
572:
58 mflr %r0
59 std %r0,16(%r1)
60 stdu %r1,-48(%r1)
61 bl PIC_PLT(HIDENAME(cerror))
62 nop
63 ld %r1,0(%r1)
64 ld %r0,16(%r1)
65 mtlr %r0
66 blr
| 30
31#include "SYS.h"
32
33 .globl HIDENAME(curbrk)
34 .globl CNAME(_end)
35
36 .data
37 .align 3
38HIDENAME(curbrk):
39 .llong CNAME(_end)
40
41 .text
42ENTRY(sbrk)
43 addis %r5,%r2,HIDENAME(curbrk)@toc@ha
44 addi %r5,%r5,HIDENAME(curbrk)@toc@l
45 ld %r6,0(%r5) /* r6 = old break */
46 cmpdi %r3,0 /* sbrk(0) - return curbrk */
47 beq 1f
48 add %r3,%r3,%r6
49 mr %r7,%r3 /* r7 = new break */
50 li %r0,SYS_break
51 sc /* break(new_break) */
52 bso 2f
53 std %r7,0(%r5)
541:
55 mr %r3,%r6 /* set return value */
56 blr
572:
58 mflr %r0
59 std %r0,16(%r1)
60 stdu %r1,-48(%r1)
61 bl PIC_PLT(HIDENAME(cerror))
62 nop
63 ld %r1,0(%r1)
64 ld %r0,16(%r1)
65 mtlr %r0
66 blr
|
| 67
68 .section .note.GNU-stack,"",%progbits
|
| |