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
test_mode(int mode)29 test_mode (int mode)
30 {
31 char *pie_path = xasprintf ("%s/elf/tst-pie1", support_objdir_root);
32 if (dlopen (pie_path, 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 (message, expected) == NULL)
38 FAIL_EXIT1 ("unexpected error message (mode %d): %s", mode, message);
39 }
40
41 static int
do_test(void)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