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
|
/* Copyright (C) 1998-2015 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, see
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
#define EINVAL 22
.text
ENTRY (__mmap)
/* shuffle args */
push { r5 }
cfi_adjust_cfa_offset (4)
cfi_rel_offset (r5, 0)
ldr r5, [sp, #8]
push { r4 }
cfi_adjust_cfa_offset (4)
cfi_rel_offset (r4, 0)
cfi_remember_state
ldr r4, [sp, #8]
/* convert offset to pages */
movs ip, r5, lsl #20
bne .Linval
mov r5, r5, lsr #12
/* do the syscall */
DO_CALL (mmap2, 0)
/* restore registers */
2:
pop { r4 }
cfi_adjust_cfa_offset (-4)
cfi_restore (r4)
pop { r5 }
cfi_adjust_cfa_offset (-4)
cfi_restore (r5)
cmn r0, $4096
it cc
RETINSTR(cc, lr)
b PLTJMP(syscall_error)
cfi_restore_state
.Linval:
mov r0, #-EINVAL
b 2b
PSEUDO_END (__mmap)
weak_alias (__mmap, mmap)
|
