150 lines
3.7 KiB
C
150 lines
3.7 KiB
C
/*-
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* Copyright (c) 2011 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Joerg Sonnenberger.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <dlfcn.h>
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#include <link_elf.h>
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#include <pthread.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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int sleep_init;
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int sleep_fini;
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int dlopen_cookie;
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int dlclose_cookie;
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void (*tls_callback_sym)(void);
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static int
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dl_iterate_phdr_cb(struct dl_phdr_info *info, size_t size, void *data)
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{
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(*tls_callback_sym)();
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return 0;
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}
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static void *
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test_dl_iterate_phdr_helper(void *dummy)
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{
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sleep(10);
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_exit(1);
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}
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static void
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test_dl_iterate_phdr(void)
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{
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pthread_t t;
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void *dso;
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sleep_init = 0;
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sleep_fini = 0;
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if ((dso = dlopen("libh_helper_dso2.so", RTLD_LAZY)) == NULL) {
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fprintf(stderr, "opening helper failed\n");
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_exit(1);
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}
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tls_callback_sym = dlsym(dso, "tls_callback");
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if (tls_callback_sym == NULL) {
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fprintf(stderr, "bad helper\n");
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_exit(1);
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}
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pthread_create(&t, NULL, test_dl_iterate_phdr_helper, NULL);
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if (dl_iterate_phdr(dl_iterate_phdr_cb, NULL))
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_exit(1);
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_exit(0);
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}
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static void *
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init_fini_helper(void *arg)
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{
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void *dso;
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if ((dso = dlopen(arg, RTLD_LAZY)) == NULL) {
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fprintf(stderr, "opening %s failed\n", (char *)arg);
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exit(1);
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}
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dlclose(dso);
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return NULL;
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}
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static void
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test_dlopen(void)
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{
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pthread_t t1, t2;
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sleep_init = 1;
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sleep_fini = 0;
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printf("%d\n", dlopen_cookie);
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pthread_create(&t1, NULL, init_fini_helper,
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__UNCONST("libh_helper_dso2.so"));
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sleep(1);
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printf("%d\n", dlopen_cookie);
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if (dlopen_cookie != 1)
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_exit(1);
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sleep(1);
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pthread_create(&t2, NULL, init_fini_helper,
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__UNCONST("libutil.so"));
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printf("%d\n", dlopen_cookie);
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if (dlopen_cookie != 1)
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_exit(1);
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_exit(0);
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}
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static void
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test_dlclose(void)
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{
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pthread_t t1, t2;
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sleep_init = 0;
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sleep_fini = 1;
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printf("%d\n", dlclose_cookie);
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pthread_create(&t1, NULL, init_fini_helper,
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__UNCONST("libh_helper_dso2.so"));
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sleep(1);
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printf("%d\n", dlclose_cookie);
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if (dlclose_cookie != 2)
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_exit(1);
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pthread_create(&t2, NULL, init_fini_helper,
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__UNCONST("libutil.so"));
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sleep(1);
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printf("%d\n", dlclose_cookie);
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if (dlclose_cookie != 2)
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_exit(1);
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_exit(0);
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}
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int
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main(int argc, char **argv)
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{
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if (argc != 2)
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return 1;
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if (strcmp(argv[1], "dl_iterate_phdr") == 0)
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test_dl_iterate_phdr();
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if (strcmp(argv[1], "dlopen") == 0)
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test_dlopen();
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if (strcmp(argv[1], "dlclose") == 0)
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test_dlclose();
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return 1;
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}
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