1 /* $OpenBSD: main.c,v 1.1 2005/09/19 21:50:27 drahn Exp $ */
2
3 /*
4 * Copyright (c) 2005 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 <stdio.h>
21
22 int mainSymbol;
23
24 int
main()25 main()
26 {
27 int ret = 1;
28 void *libbb;
29 void *libcc;
30 void *bbsym;
31 void *ccsym;
32 void *a_sym;
33
34
35 libbb = dlopen("libbb.so", RTLD_LAZY|RTLD_GLOBAL);
36 if (libbb == NULL) {
37 printf("dlopen(\"libbb.so\", RTLD_LAZY) FAILED\n");
38 return (1);
39 }
40
41 libcc = dlopen("libcc.so", RTLD_LAZY|RTLD_GLOBAL);
42 if (libcc == NULL) {
43 printf("dlopen(\"libcc.so\", RTLD_LAZY) FAILED\n");
44 return (1);
45 }
46
47 bbsym = dlsym(libbb, "commonSymbol");
48 ccsym = dlsym(libcc, "commonSymbol");
49 a_sym = dlsym(RTLD_DEFAULT, "commonSymbol");
50
51 if(a_sym == bbsym) {
52 ret = 0;
53 }
54 if(a_sym == ccsym) {
55 printf("found common symbol in libcc incorrect location\n");
56 ret = 1;
57 }
58
59 dlclose(libbb);
60 dlclose(libcc);
61
62 return (ret);
63 }
64