1*7304104dSAndroid Build Coastguard Worker /* Creates an ELF handle from a possibly compressed file descriptor.
2*7304104dSAndroid Build Coastguard Worker Copyright (C) 2018 Red Hat, Inc.
3*7304104dSAndroid Build Coastguard Worker This file is part of elfutils.
4*7304104dSAndroid Build Coastguard Worker
5*7304104dSAndroid Build Coastguard Worker This file is free software; you can redistribute it and/or modify
6*7304104dSAndroid Build Coastguard Worker it under the terms of either
7*7304104dSAndroid Build Coastguard Worker
8*7304104dSAndroid Build Coastguard Worker * the GNU Lesser General Public License as published by the Free
9*7304104dSAndroid Build Coastguard Worker Software Foundation; either version 3 of the License, or (at
10*7304104dSAndroid Build Coastguard Worker your option) any later version
11*7304104dSAndroid Build Coastguard Worker
12*7304104dSAndroid Build Coastguard Worker or
13*7304104dSAndroid Build Coastguard Worker
14*7304104dSAndroid Build Coastguard Worker * the GNU General Public License as published by the Free
15*7304104dSAndroid Build Coastguard Worker Software Foundation; either version 2 of the License, or (at
16*7304104dSAndroid Build Coastguard Worker your option) any later version
17*7304104dSAndroid Build Coastguard Worker
18*7304104dSAndroid Build Coastguard Worker or both in parallel, as here.
19*7304104dSAndroid Build Coastguard Worker
20*7304104dSAndroid Build Coastguard Worker elfutils is distributed in the hope that it will be useful, but
21*7304104dSAndroid Build Coastguard Worker WITHOUT ANY WARRANTY; without even the implied warranty of
22*7304104dSAndroid Build Coastguard Worker MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23*7304104dSAndroid Build Coastguard Worker General Public License for more details.
24*7304104dSAndroid Build Coastguard Worker
25*7304104dSAndroid Build Coastguard Worker You should have received copies of the GNU General Public License and
26*7304104dSAndroid Build Coastguard Worker the GNU Lesser General Public License along with this program. If
27*7304104dSAndroid Build Coastguard Worker not, see <http://www.gnu.org/licenses/>. */
28*7304104dSAndroid Build Coastguard Worker
29*7304104dSAndroid Build Coastguard Worker #ifdef HAVE_CONFIG_H
30*7304104dSAndroid Build Coastguard Worker # include <config.h>
31*7304104dSAndroid Build Coastguard Worker #endif
32*7304104dSAndroid Build Coastguard Worker
33*7304104dSAndroid Build Coastguard Worker #include "libdwelfP.h"
34*7304104dSAndroid Build Coastguard Worker #include "libdwflP.h"
35*7304104dSAndroid Build Coastguard Worker #include "libelfP.h"
36*7304104dSAndroid Build Coastguard Worker
37*7304104dSAndroid Build Coastguard Worker NEW_VERSION (dwelf_elf_begin, ELFUTILS_0.177)
38*7304104dSAndroid Build Coastguard Worker Elf *
dwelf_elf_begin(int fd)39*7304104dSAndroid Build Coastguard Worker dwelf_elf_begin (int fd)
40*7304104dSAndroid Build Coastguard Worker {
41*7304104dSAndroid Build Coastguard Worker Elf *elf = NULL;
42*7304104dSAndroid Build Coastguard Worker Dwfl_Error e = __libdw_open_elf (fd, &elf);
43*7304104dSAndroid Build Coastguard Worker if (e == DWFL_E_NOERROR)
44*7304104dSAndroid Build Coastguard Worker return elf;
45*7304104dSAndroid Build Coastguard Worker
46*7304104dSAndroid Build Coastguard Worker /* Elf wasn't usable. Make sure there is a proper elf error
47*7304104dSAndroid Build Coastguard Worker message. This is probably not the real error, because there is
48*7304104dSAndroid Build Coastguard Worker no good way to propagate errnos or decompression errors, but
49*7304104dSAndroid Build Coastguard Worker better than nothing. */
50*7304104dSAndroid Build Coastguard Worker
51*7304104dSAndroid Build Coastguard Worker if (e != DWFL_E_LIBELF)
52*7304104dSAndroid Build Coastguard Worker {
53*7304104dSAndroid Build Coastguard Worker /* Force a bad ELF error. */
54*7304104dSAndroid Build Coastguard Worker char badelf[EI_NIDENT] = { };
55*7304104dSAndroid Build Coastguard Worker Elf *belf = elf_memory (badelf, EI_NIDENT);
56*7304104dSAndroid Build Coastguard Worker elf32_getehdr (belf);
57*7304104dSAndroid Build Coastguard Worker elf_end (belf);
58*7304104dSAndroid Build Coastguard Worker }
59*7304104dSAndroid Build Coastguard Worker
60*7304104dSAndroid Build Coastguard Worker return NULL;
61*7304104dSAndroid Build Coastguard Worker }
62*7304104dSAndroid Build Coastguard Worker OLD_VERSION (dwelf_elf_begin, ELFUTILS_0.175)
63