|
1 /* |
|
2 newdata.c - implementation of the elf_newdata(3) function. |
|
3 Copyright (C) 1995 - 2000 Michael Riepe |
|
4 |
|
5 This library is free software; you can redistribute it and/or |
|
6 modify it under the terms of the GNU Library General Public |
|
7 License as published by the Free Software Foundation; either |
|
8 version 2 of the License, or (at your option) any later version. |
|
9 |
|
10 This library is distributed in the hope that it will be useful, |
|
11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|
13 Library General Public License for more details. |
|
14 |
|
15 You should have received a copy of the GNU Library General Public |
|
16 License along with this library; if not, write to the Free Software |
|
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
|
18 */ |
|
19 |
|
20 #include <private.h> |
|
21 |
|
22 #ifndef lint |
|
23 static const char rcsid[] = "@(#) $Id: newdata.c,v 1.9 2005/05/21 15:39:24 michael Exp $"; |
|
24 #endif /* lint */ |
|
25 |
|
26 Elf_Data* |
|
27 elf_newdata(Elf_Scn *scn) { |
|
28 Scn_Data *sd; |
|
29 |
|
30 if (!scn) { |
|
31 return NULL; |
|
32 } |
|
33 elf_assert(scn->s_magic == SCN_MAGIC); |
|
34 if (scn->s_index == SHN_UNDEF) { |
|
35 seterr(ERROR_NULLSCN); |
|
36 } |
|
37 else if (!(sd = (Scn_Data*)malloc(sizeof(*sd)))) { |
|
38 seterr(ERROR_MEM_SCNDATA); |
|
39 } |
|
40 else { |
|
41 *sd = _elf_data_init; |
|
42 sd->sd_scn = scn; |
|
43 sd->sd_data_flags = ELF_F_DIRTY; |
|
44 sd->sd_freeme = 1; |
|
45 sd->sd_data.d_version = _elf_version; |
|
46 if (scn->s_data_n) { |
|
47 scn->s_data_n->sd_link = sd; |
|
48 } |
|
49 else { |
|
50 scn->s_data_1 = sd; |
|
51 } |
|
52 scn->s_data_n = sd; |
|
53 return &sd->sd_data; |
|
54 } |
|
55 return NULL; |
|
56 } |