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
50 ATF_TC(t_tls_dlopen);
51
ATF_TC_HEAD(t_tls_dlopen,tc)52 ATF_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
58 void (*testf_helper)(int, int);
59
60 __thread int var1 = 1;
61 __thread int var2;
62 __thread int *var3 = &optind;
63 int var4_helper;
64 __thread int *var4 = &var4_helper;
65
66 static void *
testf(void * dummy)67 testf(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
ATF_TC_BODY(t_tls_dlopen,tc)84 ATF_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
ATF_TP_ADD_TCS(tp)110 ATF_TP_ADD_TCS(tp)
111 {
112 ATF_TP_ADD_TC(tp, t_tls_dlopen);
113
114 return atf_no_error();
115 }
116