1 | /* Test for dladdr. |
2 | Copyright (C) 2000-2022 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 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <dlfcn.h> |
20 | #include <errno.h> |
21 | #include <error.h> |
22 | #include <stdio.h> |
23 | #include <stdlib.h> |
24 | #include <string.h> |
25 | |
26 | |
27 | #define TEST_FUNCTION do_test () |
28 | extern int do_test (void); |
29 | |
30 | int |
31 | do_test (void) |
32 | { |
33 | void *handle; |
34 | int (*sym) (void); /* We load ref1 from glreflib1.c. */ |
35 | Dl_info info; |
36 | int ret; |
37 | |
38 | |
39 | handle = dlopen (file: "glreflib1.so" , RTLD_NOW); |
40 | if (handle == NULL) |
41 | error (EXIT_FAILURE, errnum: 0, format: "cannot load: glreflib1.so" ); |
42 | |
43 | sym = dlsym (handle: handle, name: "ref1" ); |
44 | if (sym == NULL) |
45 | error (EXIT_FAILURE, errnum: 0, format: "dlsym failed" ); |
46 | |
47 | memset (&info, 0, sizeof (info)); |
48 | ret = dladdr (address: sym, info: &info); |
49 | |
50 | if (ret == 0) |
51 | error (EXIT_FAILURE, errnum: 0, format: "dladdr failed" ); |
52 | |
53 | printf (format: "ret = %d\n" , ret); |
54 | printf (format: "info.dli_fname = %p (\"%s\")\n" , info.dli_fname, info.dli_fname); |
55 | printf (format: "info.dli_fbase = %p\n" , info.dli_fbase); |
56 | printf (format: "info.dli_sname = %p (\"%s\")\n" , info.dli_sname, info.dli_sname); |
57 | printf (format: "info.dli_saddr = %p\n" , info.dli_saddr); |
58 | |
59 | if (info.dli_fname == NULL) |
60 | error (EXIT_FAILURE, errnum: 0, format: "dli_fname is NULL" ); |
61 | if (info.dli_fbase == NULL) |
62 | error (EXIT_FAILURE, errnum: 0, format: "dli_fbase is NULL" ); |
63 | if (info.dli_sname == NULL) |
64 | error (EXIT_FAILURE, errnum: 0, format: "dli_sname is NULL" ); |
65 | if (info.dli_saddr == NULL) |
66 | error (EXIT_FAILURE, errnum: 0, format: "dli_saddr is NULL" ); |
67 | |
68 | dlclose (handle: handle); |
69 | |
70 | return 0; |
71 | } |
72 | |
73 | |
74 | #include "../test-skeleton.c" |
75 | |