1 | /* Copyright (C) 2001-2022 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) any later version. |
8 | |
9 | The GNU C Library 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 GNU |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <https://www.gnu.org/licenses/>. */ |
17 | |
18 | #include <dlfcn.h> |
19 | #include <stdio.h> |
20 | #include <stdlib.h> |
21 | |
22 | int |
23 | main (void) |
24 | { |
25 | const char fname[] = "modcxaatexit.so" ; |
26 | void *h; |
27 | void (*fp) (void *); |
28 | int v = 0; |
29 | |
30 | h = dlopen (file: fname, RTLD_LAZY); |
31 | if (h == NULL) |
32 | { |
33 | printf (format: "cannot open \"%s\": %s\n" , fname, dlerror ()); |
34 | exit (1); |
35 | } |
36 | |
37 | fp = dlsym (handle: h, name: "bar" ); |
38 | if (fp == NULL) |
39 | { |
40 | printf (format: "cannot find \"bar\": %s\n" , dlerror ()); |
41 | exit (1); |
42 | } |
43 | |
44 | fp (&v); |
45 | |
46 | if (dlclose (handle: h) != 0) |
47 | { |
48 | printf (format: "cannot close \"%s\": %s\n" , fname, dlerror ()); |
49 | exit (1); |
50 | } |
51 | |
52 | if (v != 1) |
53 | { |
54 | puts (s: "module unload didn't change `v'" ); |
55 | exit (1); |
56 | } |
57 | |
58 | puts (s: "finishing now" ); |
59 | |
60 | return 0; |
61 | } |
62 | |