1/*-
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * William Jolitz.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33#if defined(SYSLIBC_SCCS) && !defined(lint)
34 .asciz "@(#)brk.s 5.2 (Berkeley) 12/17/90"
35#endif /* SYSLIBC_SCCS and not lint */
36#include <machine/asm.h>
| 1/*-
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * William Jolitz.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33#if defined(SYSLIBC_SCCS) && !defined(lint)
34 .asciz "@(#)brk.s 5.2 (Berkeley) 12/17/90"
35#endif /* SYSLIBC_SCCS and not lint */
36#include <machine/asm.h>
|
37__FBSDID("$FreeBSD: head/lib/libc/i386/sys/brk.S 217106 2011-01-07 16:08:40Z kib $");
| 37__FBSDID("$FreeBSD: head/lib/libc/i386/sys/brk.S 240152 2012-09-05 21:41:05Z jilles $");
|
38
39#include "SYS.h"
40
41 .globl HIDENAME(curbrk)
42 .globl HIDENAME(minbrk)
43ENTRY(_brk)
44 jmp ok
45END(_brk)
46
47ENTRY(brk)
48#ifdef PIC
49 movl 4(%esp),%eax
50 PIC_PROLOGUE
51 movl PIC_GOT(HIDENAME(curbrk)),%edx # set up GOT addressing
52 movl PIC_GOT(HIDENAME(minbrk)),%ecx #
53 PIC_EPILOGUE
54 cmpl %eax,(%ecx)
55 jbe ok
56 movl (%ecx),%eax
57 movl %eax,4(%esp)
58ok:
59 mov $SYS_break,%eax
60 KERNCALL
| 38
39#include "SYS.h"
40
41 .globl HIDENAME(curbrk)
42 .globl HIDENAME(minbrk)
43ENTRY(_brk)
44 jmp ok
45END(_brk)
46
47ENTRY(brk)
48#ifdef PIC
49 movl 4(%esp),%eax
50 PIC_PROLOGUE
51 movl PIC_GOT(HIDENAME(curbrk)),%edx # set up GOT addressing
52 movl PIC_GOT(HIDENAME(minbrk)),%ecx #
53 PIC_EPILOGUE
54 cmpl %eax,(%ecx)
55 jbe ok
56 movl (%ecx),%eax
57 movl %eax,4(%esp)
58ok:
59 mov $SYS_break,%eax
60 KERNCALL
|
61 jb err
| 61 jb HIDENAME(cerror)
|
62 movl 4(%esp),%eax
63 movl %eax,(%edx)
64 movl $0,%eax
65 ret
| 62 movl 4(%esp),%eax
63 movl %eax,(%edx)
64 movl $0,%eax
65 ret
|
66err:
67 PIC_PROLOGUE
68 jmp PIC_PLT(HIDENAME(cerror))
| |
69
70#else
71
72 movl 4(%esp),%eax
73 cmpl %eax,HIDENAME(minbrk)
74 jbe ok
75 movl HIDENAME(minbrk),%eax
76 movl %eax,4(%esp)
77ok:
78 mov $SYS_break,%eax
79 KERNCALL
| 66
67#else
68
69 movl 4(%esp),%eax
70 cmpl %eax,HIDENAME(minbrk)
71 jbe ok
72 movl HIDENAME(minbrk),%eax
73 movl %eax,4(%esp)
74ok:
75 mov $SYS_break,%eax
76 KERNCALL
|
80 jb err
| 77 jb HIDENAME(cerror)
|
81 movl 4(%esp),%eax
82 movl %eax,HIDENAME(curbrk)
83 movl $0,%eax
84 ret
| 78 movl 4(%esp),%eax
79 movl %eax,HIDENAME(curbrk)
80 movl $0,%eax
81 ret
|
85err:
86 jmp HIDENAME(cerror)
| |
87#endif
88END(brk)
89
90 .section .note.GNU-stack,"",%progbits
| 82#endif
83END(brk)
84
85 .section .note.GNU-stack,"",%progbits
|