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
|
/* Update additional symbol version definition information.
Copyright (C) 2001, 2002 Red Hat, Inc.
Written by Ulrich Drepper <drepper@redhat.com>, 2001.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <assert.h>
#include <gelf.h>
#include <string.h>
#include "libelfP.h"
int
gelf_update_verdaux (Elf_Data *data, int offset, GElf_Verdaux *src)
{
Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data;
if (data == NULL)
return 0;
/* The types for 32 and 64 bit are the same. Lucky us. */
assert (sizeof (GElf_Verdaux) == sizeof (Elf32_Verdaux));
assert (sizeof (GElf_Verdaux) == sizeof (Elf64_Verdaux));
/* Check whether we have to resize the data buffer. */
if (unlikely (offset < 0)
|| unlikely ((offset + sizeof (GElf_Verdaux)) > data_scn->d.d_size))
{
__libelf_seterrno (ELF_E_INVALID_INDEX);
return 0;
}
if (unlikely (data_scn->d.d_type != ELF_T_VDEF))
{
/* The type of the data better should match. */
__libelf_seterrno (ELF_E_DATA_MISMATCH);
return 0;
}
rwlock_wrlock (data_scn->s->elf->lock);
memcpy ((char *) data_scn->d.d_buf + offset, src, sizeof (GElf_Verdaux));
/* Mark the section as modified. */
data_scn->s->flags |= ELF_F_DIRTY;
rwlock_unlock (data_scn->s->elf->lock);
return 1;
}
|
