Branch data Line data Source code
1 : : /* Retrieve uninterpreted file contents.
2 : : Copyright (C) 1998, 1999, 2000, 2002, 2015 Red Hat, Inc.
3 : : This file is part of elfutils.
4 : : Contributed by Ulrich Drepper <drepper@redhat.com>, 1998.
5 : :
6 : : This file is free software; you can redistribute it and/or modify
7 : : it under the terms of either
8 : :
9 : : * the GNU Lesser General Public License as published by the Free
10 : : Software Foundation; either version 3 of the License, or (at
11 : : your option) any later version
12 : :
13 : : or
14 : :
15 : : * the GNU General Public License as published by the Free
16 : : Software Foundation; either version 2 of the License, or (at
17 : : your option) any later version
18 : :
19 : : or both in parallel, as here.
20 : :
21 : : elfutils is distributed in the hope that it will be useful, but
22 : : WITHOUT ANY WARRANTY; without even the implied warranty of
23 : : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
24 : : General Public License for more details.
25 : :
26 : : You should have received copies of the GNU General Public License and
27 : : the GNU Lesser General Public License along with this program. If
28 : : not, see <http://www.gnu.org/licenses/>. */
29 : :
30 : : #ifdef HAVE_CONFIG_H
31 : : # include <config.h>
32 : : #endif
33 : :
34 : : #include <libelf.h>
35 : : #include <stddef.h>
36 : :
37 : : #include "libelfP.h"
38 : :
39 : :
40 : : char *
41 : 61 : elf_rawfile (Elf *elf, size_t *ptr)
42 : : {
43 : 61 : char *result;
44 : :
45 [ - + ]: 61 : if (elf == NULL)
46 : : {
47 : : /* No valid descriptor. */
48 : 0 : __libelf_seterrno (ELF_E_INVALID_HANDLE);
49 : 0 : error_out:
50 [ # # ]: 0 : if (ptr != NULL)
51 : 0 : *ptr = 0;
52 : 0 : return NULL;
53 : : }
54 : :
55 : : /* If the file is not mmap'ed and not previously loaded, do it now. */
56 [ - + # # ]: 61 : if (elf->map_address == NULL && __libelf_readall (elf) == NULL)
57 : : goto error_out;
58 : :
59 : 61 : rwlock_rdlock (elf->lock);
60 [ + - ]: 61 : if (ptr != NULL)
61 : 61 : *ptr = elf->maximum_size;
62 : :
63 : 61 : result = (char *) elf->map_address + elf->start_offset;
64 : 61 : rwlock_unlock (elf->lock);
65 : :
66 : 61 : return result;
67 : : }
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