1/* Update move structure at the given index.
2   Copyright (C) 2000, 2001, 2002 Red Hat, Inc.
3   Written by Ulrich Drepper <drepper@redhat.com>, 2000.
4
5   This program is free software; you can redistribute it and/or modify
6   it under the terms of the GNU General Public License as published by
7   the Free Software Foundation, version 2.
8
9   This program is distributed in the hope that it will be useful,
10   but WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12   GNU General Public License for more details.
13
14   You should have received a copy of the GNU General Public License
15   along with this program; if not, write to the Free Software Foundation,
16   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
17
18#ifdef HAVE_CONFIG_H
19# include <config.h>
20#endif
21
22#include <assert.h>
23#include <gelf.h>
24#include <stdlib.h>
25
26#include "libelfP.h"
27
28
29int
30gelf_update_move (data, ndx, src)
31     Elf_Data *data;
32     int ndx;
33     GElf_Move *src;
34{
35  Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data;
36
37  if (data == NULL)
38    return 0;
39
40  /* The types for 32 and 64 bit are the same.  Lucky us.  */
41  assert (sizeof (GElf_Move) == sizeof (Elf32_Move));
42  assert (sizeof (GElf_Move) == sizeof (Elf64_Move));
43
44  /* Check whether we have to resize the data buffer.  */
45  if (unlikely (ndx < 0)
46      || unlikely ((ndx + 1) * sizeof (GElf_Move) > data_scn->d.d_size))
47    {
48      __libelf_seterrno (ELF_E_INVALID_INDEX);
49      return 0;
50    }
51
52  if (unlikely (data_scn->d.d_type != ELF_T_MOVE))
53    {
54      /* The type of the data better should match.  */
55      __libelf_seterrno (ELF_E_DATA_MISMATCH);
56      return 0;
57    }
58
59  rwlock_wrlock (data_scn->s->elf->lock);
60
61  ((GElf_Move *) data_scn->d.d_buf)[ndx] = *src;
62
63  /* Mark the section as modified.  */
64  data_scn->s->flags |= ELF_F_DIRTY;
65
66  rwlock_unlock (data_scn->s->elf->lock);
67
68  return 1;
69}
70