1/*	$NetBSD: t_tls_dlopen.c,v 1.2 2011/11/17 16:20:11 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 1.2 2011/11/17 16:20:11 joerg Exp $");
36
37#include <atf-c.h>
38#include <dlfcn.h>
39#include <pthread.h>
40#include <unistd.h>
41
42#include <sys/tls.h>
43
44#ifdef __HAVE_NO___THREAD
45#define	__thread
46#endif
47
48ATF_TC(t_tls_dlopen);
49
50ATF_TC_HEAD(t_tls_dlopen, tc)
51{
52	atf_tc_set_md_var(tc, "descr",
53	    "Test (un)initialized TLS variables and dlopen");
54}
55
56void (*testf_helper)(int, int);
57
58__thread int var1 = 1;
59__thread int var2;
60__thread int *var3 = &optind;
61int var4_helper;
62__thread int *var4 = &var4_helper;
63
64static void *
65testf(void *dummy)
66{
67	ATF_CHECK_EQ(var1, 1);
68	ATF_CHECK_EQ(var2, 0);
69	ATF_CHECK_EQ(var3, &optind);
70	ATF_CHECK_EQ(var4, &var4_helper);
71	testf_helper(2, 2);
72	ATF_CHECK_EQ(var1, 2);
73	ATF_CHECK_EQ(var2, 2);
74	testf_helper(3, 3);
75	ATF_CHECK_EQ(var1, 3);
76	ATF_CHECK_EQ(var2, 3);
77	ATF_CHECK_EQ(var3, &optind);
78
79	return NULL;
80}
81
82ATF_TC_BODY(t_tls_dlopen, tc)
83{
84	void *handle;
85	pthread_t t;
86
87#ifdef __HAVE_NO___THREAD
88	atf_tc_skip("no TLS support on this platform");
89#endif
90
91	handle = dlopen("h_tls_dlopen.so", RTLD_NOW | RTLD_LOCAL);
92	ATF_REQUIRE(handle != NULL);
93
94	testf_helper = dlsym(handle, "testf_dso_helper");
95	ATF_REQUIRE(testf_helper != NULL);
96
97	testf(NULL);
98
99	pthread_create(&t, 0, testf, 0);
100	pthread_join(t, NULL);
101
102	pthread_create(&t, 0, testf, 0);
103	pthread_join(t, NULL);
104
105	dlclose(handle);
106}
107
108ATF_TP_ADD_TCS(tp)
109{
110	ATF_TP_ADD_TC(tp, t_tls_dlopen);
111
112	return atf_no_error();
113}
114