1/*	$NetBSD: t_tls_dlopen.c,v 1.3 2012/01/17 20:34:57 joerg Exp $	*/
2/*-
3 * Copyright (c) 2011 The NetBSD Foundation, Inc.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to The NetBSD Foundation
7 * by Joerg Sonnenberger.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in
17 *    the documentation and/or other materials provided with the
18 *    distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
24 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
30 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#include <sys/cdefs.h>
35__RCSID("$NetBSD: t_tls_dlopen.c,v 1.3 2012/01/17 20:34:57 joerg Exp $");
36
37#include <atf-c.h>
38#include <dlfcn.h>
39#include <pthread.h>
40#include <unistd.h>
41
42#ifdef __NetBSD__
43#include <sys/tls.h>
44#endif
45
46#ifdef __HAVE_NO___THREAD
47#define	__thread
48#endif
49
50ATF_TC(t_tls_dlopen);
51
52ATF_TC_HEAD(t_tls_dlopen, tc)
53{
54	atf_tc_set_md_var(tc, "descr",
55	    "Test (un)initialized TLS variables and dlopen");
56}
57
58void (*testf_helper)(int, int);
59
60__thread int var1 = 1;
61__thread int var2;
62__thread int *var3 = &optind;
63int var4_helper;
64__thread int *var4 = &var4_helper;
65
66static void *
67testf(void *dummy)
68{
69	ATF_CHECK_EQ(var1, 1);
70	ATF_CHECK_EQ(var2, 0);
71	ATF_CHECK_EQ(var3, &optind);
72	ATF_CHECK_EQ(var4, &var4_helper);
73	testf_helper(2, 2);
74	ATF_CHECK_EQ(var1, 2);
75	ATF_CHECK_EQ(var2, 2);
76	testf_helper(3, 3);
77	ATF_CHECK_EQ(var1, 3);
78	ATF_CHECK_EQ(var2, 3);
79	ATF_CHECK_EQ(var3, &optind);
80
81	return NULL;
82}
83
84ATF_TC_BODY(t_tls_dlopen, tc)
85{
86	void *handle;
87	pthread_t t;
88
89#ifdef __HAVE_NO___THREAD
90	atf_tc_skip("no TLS support on this platform");
91#endif
92
93	handle = dlopen("h_tls_dlopen.so", RTLD_NOW | RTLD_LOCAL);
94	ATF_REQUIRE(handle != NULL);
95
96	testf_helper = dlsym(handle, "testf_dso_helper");
97	ATF_REQUIRE(testf_helper != NULL);
98
99	testf(NULL);
100
101	pthread_create(&t, 0, testf, 0);
102	pthread_join(t, NULL);
103
104	pthread_create(&t, 0, testf, 0);
105	pthread_join(t, NULL);
106
107	dlclose(handle);
108}
109
110ATF_TP_ADD_TCS(tp)
111{
112	ATF_TP_ADD_TC(tp, t_tls_dlopen);
113
114	return atf_no_error();
115}
116