1/* Support functionality for using dlopen/dlclose/dlsym.
2 Copyright (C) 2017-2019 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C 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 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
18
19#include <stddef.h>
20#include <support/check.h>
21#include <support/xdlfcn.h>
22
23void *
24xdlopen (const char *filename, int flags)
25{
26 void *dso = dlopen (filename, flags);
27
28 if (dso == NULL)
29 FAIL_EXIT1 ("error: dlopen: %s\n", dlerror ());
30
31 /* Clear any errors. */
32 dlerror ();
33
34 return dso;
35}
36
37void *
38xdlsym (void *handle, const char *symbol)
39{
40 void *sym = dlsym (handle, symbol);
41
42 if (sym == NULL)
43 FAIL_EXIT1 ("error: dlsym: %s\n", dlerror ());
44
45 /* Clear any errors. */
46 dlerror ();
47
48 return sym;
49}
50
51void
52xdlclose (void *handle)
53{
54 if (dlclose (handle) != 0)
55 FAIL_EXIT1 ("error: dlclose: %s\n", dlerror ());
56
57 /* Clear any errors. */
58 dlerror ();
59}
60