1 /*      $OpenBSD: test2.c,v 1.3 2017/08/07 16:33:52 bluhm Exp $       */
2 
3 /*
4  * Copyright (c) 2007 Kurt Miller <kurt@openbsd.org>
5  *
6  * Permission to use, copy, modify, and distribute this software for any
7  * purpose with or without fee is hereby granted, provided that the above
8  * copyright notice and this permission notice appear in all copies.
9  *
10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17  */
18 
19 #include <dlfcn.h>
20 #include <err.h>
21 #include <stdio.h>
22 
23 void *hidden_check = NULL;
24 __asm(".hidden hidden_check");
25 
26 void *libaa_hidden_val = NULL;
27 void *libab_hidden_val = NULL;
28 
29 extern	void test_aa(void);
30 extern	void test_ab(void);
31 
32 int
33 main()
34 {
35 	test_aa();
36 	test_ab();
37 
38 	if (hidden_check != NULL)
39 		errx(1, "hidden_check != NULL in main prog\n");
40 
41 	if (libaa_hidden_val == NULL || libab_hidden_val == NULL ||
42 	    libaa_hidden_val == libab_hidden_val)
43 		errx(1, "incorrect hidden_check detected in libs\n");
44 
45 	return (0);
46 }
47