1 /* Check compatibility of CET-enabled executable with dlopened legacy
2 shared object.
3 Copyright (C) 2018-2021 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
5
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
10
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <https://www.gnu.org/licenses/>. */
19
20 #include <dlfcn.h>
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <string.h>
24
25 #include <support/check.h>
26
27 static int
do_test(void)28 do_test (void)
29 {
30 static const char modname[] = "tst-cet-legacy-mod-4.so";
31 int (*fp) (void);
32 void *h;
33
34 h = dlopen (modname, RTLD_LAZY);
35 if (h == NULL)
36 {
37 const char *err = dlerror ();
38 if (!strstr (err, "rebuild shared object with IBT support enabled"))
39 FAIL_EXIT1 ("incorrect dlopen '%s' error: %s\n", modname, err);
40 return 0;
41 }
42
43 fp = dlsym (h, "test");
44 if (fp == NULL)
45 FAIL_EXIT1 ("cannot get symbol 'test': %s\n", dlerror ());
46
47 if (fp () != 0)
48 FAIL_EXIT1 ("test () != 0");
49
50 dlclose (h);
51
52 return 0;
53 }
54
55 #include <support/test-driver.c>
56