1 /* $NetBSD: t_dlopen.c,v 1.1 2013/03/21 16:50:21 christos Exp $ */
2 /*-
3 * Copyright (c) 2013 The NetBSD Foundation, Inc.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to The NetBSD Foundation
7 * by Emmanuel Dreyfus
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_dlopen.c,v 1.1 2013/03/21 16:50:21 christos Exp $");
36
37 #include <atf-c.h>
38 #include <dlfcn.h>
39 #include <pthread.h>
40 #include <unistd.h>
41
42 ATF_TC(dlopen);
43
ATF_TC_HEAD(dlopen,tc)44 ATF_TC_HEAD(dlopen, tc)
45 {
46 atf_tc_set_md_var(tc, "descr",
47 "Test if dlopen can load -lpthread DSO");
48 }
49
50 #define DSO TESTDIR "/h_pthread_dlopen.so"
51
ATF_TC_BODY(dlopen,tc)52 ATF_TC_BODY(dlopen, tc)
53 {
54 void *handle;
55 int (*testf_dso_null)(void);
56 handle = dlopen(DSO, RTLD_NOW | RTLD_LOCAL);
57 ATF_REQUIRE_MSG(handle != NULL, "dlopen fails: %s", dlerror());
58
59 testf_dso_null = dlsym(handle, "testf_dso_null");
60 ATF_REQUIRE_MSG(testf_dso_null != NULL, "dlsym fails: %s", dlerror());
61
62 ATF_REQUIRE(testf_dso_null() == 0xcafe);
63
64 ATF_REQUIRE(dlclose(handle) == 0);
65 }
66
67 ATF_TC(dlopen_mutex);
68
ATF_TC_HEAD(dlopen_mutex,tc)69 ATF_TC_HEAD(dlopen_mutex, tc)
70 {
71 atf_tc_set_md_var(tc, "descr",
72 "Test if dlopen can load -lpthread DSO without breaking mutex");
73 }
74
ATF_TC_BODY(dlopen_mutex,tc)75 ATF_TC_BODY(dlopen_mutex, tc)
76 {
77 pthread_mutex_t mtx;
78 void *handle;
79 int (*testf_dso_null)(void);
80
81 ATF_REQUIRE(pthread_mutex_init(&mtx, NULL) == 0);
82 ATF_REQUIRE(pthread_mutex_lock(&mtx) == 0);
83
84 handle = dlopen(DSO, RTLD_NOW | RTLD_LOCAL);
85 ATF_REQUIRE_MSG(handle != NULL, "dlopen fails: %s", dlerror());
86
87 testf_dso_null = dlsym(handle, "testf_dso_null");
88 ATF_REQUIRE_MSG(testf_dso_null != NULL, "dlsym fails: %s", dlerror());
89
90 ATF_REQUIRE(testf_dso_null() == 0xcafe);
91
92 ATF_REQUIRE(pthread_mutex_unlock(&mtx) == 0);
93
94 ATF_REQUIRE(dlclose(handle) == 0);
95
96 pthread_mutex_destroy(&mtx);
97 }
98
99 ATF_TC(dlopen_mutex_libc);
100
ATF_TC_HEAD(dlopen_mutex_libc,tc)101 ATF_TC_HEAD(dlopen_mutex_libc, tc)
102 {
103 atf_tc_set_md_var(tc, "descr",
104 "Test if dlopen can load -lpthread DSO and use libc locked mutex");
105 }
106
ATF_TC_BODY(dlopen_mutex_libc,tc)107 ATF_TC_BODY(dlopen_mutex_libc, tc)
108 {
109 pthread_mutex_t mtx;
110 void *handle;
111 int (*testf_dso_mutex_unlock)(pthread_mutex_t *);
112
113 ATF_REQUIRE(pthread_mutex_init(&mtx, NULL) == 0);
114 ATF_REQUIRE(pthread_mutex_lock(&mtx) == 0);
115
116 handle = dlopen(DSO, RTLD_NOW | RTLD_LOCAL);
117 ATF_REQUIRE_MSG(handle != NULL, "dlopen fails: %s", dlerror());
118
119 testf_dso_mutex_unlock = dlsym(handle, "testf_dso_mutex_unlock");
120 ATF_REQUIRE_MSG(testf_dso_mutex_unlock != NULL,
121 "dlsym fails: %s", dlerror());
122
123 ATF_REQUIRE(testf_dso_mutex_unlock(&mtx) == 0xcafe);
124
125 dlclose(handle);
126
127 pthread_mutex_destroy(&mtx);
128 }
129
130 ATF_TC(dlopen_mutex_libpthread);
131
ATF_TC_HEAD(dlopen_mutex_libpthread,tc)132 ATF_TC_HEAD(dlopen_mutex_libpthread, tc)
133 {
134 atf_tc_set_md_var(tc, "descr",
135 "Test if dlopen can load -lpthread DSO and use "
136 "libpthread locked mutex");
137 }
138
ATF_TC_BODY(dlopen_mutex_libpthread,tc)139 ATF_TC_BODY(dlopen_mutex_libpthread, tc)
140 {
141 pthread_mutex_t mtx;
142 void *handle;
143 int (*testf_dso_mutex_lock)(pthread_mutex_t *);
144
145 ATF_REQUIRE(pthread_mutex_init(&mtx, NULL) == 0);
146
147 handle = dlopen(DSO, RTLD_NOW | RTLD_LOCAL);
148 ATF_REQUIRE_MSG(handle != NULL, "dlopen fails: %s", dlerror());
149
150 testf_dso_mutex_lock = dlsym(handle, "testf_dso_mutex_lock");
151 ATF_REQUIRE_MSG(testf_dso_mutex_lock != NULL,
152 "dlsym fails: %s", dlerror());
153
154 ATF_REQUIRE(testf_dso_mutex_lock(&mtx) == 0xcafe);
155
156 ATF_REQUIRE(pthread_mutex_unlock(&mtx) == 0);
157
158 dlclose(handle);
159
160 pthread_mutex_destroy(&mtx);
161 }
162
ATF_TP_ADD_TCS(tp)163 ATF_TP_ADD_TCS(tp)
164 {
165 ATF_TP_ADD_TC(tp, dlopen);
166 ATF_TP_ADD_TC(tp, dlopen_mutex);
167 ATF_TP_ADD_TC(tp, dlopen_mutex_libc);
168 ATF_TP_ADD_TC(tp, dlopen_mutex_libpthread);
169
170 return atf_no_error();
171 }
172