1 | /* dlopen test for PIE objects. |
2 | Copyright (C) 2019-2022 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 | /* This test attempts to open the (otherwise unrelated) PIE test |
20 | program elf/tst-pie1 and expects the attempt to fail. */ |
21 | |
22 | #include <dlfcn.h> |
23 | #include <stddef.h> |
24 | #include <string.h> |
25 | #include <support/check.h> |
26 | #include <support/support.h> |
27 | |
28 | static void |
29 | test_mode (int mode) |
30 | { |
31 | char *pie_path = xasprintf (format: "%s/elf/tst-pie1" , support_objdir_root); |
32 | if (dlopen (file: pie_path, mode: mode) != NULL) |
33 | FAIL_EXIT1 ("dlopen succeeded unexpectedly (%d)" , mode); |
34 | const char *message = dlerror (); |
35 | const char *expected |
36 | = "cannot dynamically load position-independent executable" ; |
37 | if (strstr (haystack: message, needle: expected) == NULL) |
38 | FAIL_EXIT1 ("unexpected error message (mode %d): %s" , mode, message); |
39 | } |
40 | |
41 | static int |
42 | do_test (void) |
43 | { |
44 | test_mode (RTLD_LAZY); |
45 | test_mode (RTLD_NOW); |
46 | return 0; |
47 | } |
48 | |
49 | #include <support/test-driver.c> |
50 | |