tests/lib/libpthread/dlopen/t_dlopen.c

   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
  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
  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
  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
  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
 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
 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
 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
 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
 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 }