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h_df_1_noopen.c
(1.71 KB)
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h_dl_symver.c
(1.63 KB)
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h_ifunc.c
(1.66 KB)
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h_locking.c
(3.72 KB)
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helper_dso1
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helper_dso2
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helper_ifunc_dso
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helper_symver_dso0
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helper_symver_dso1
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helper_symver_dso2
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t_df_1_noopen.sh
(2.13 KB)
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t_dl_symver.sh
(2.02 KB)
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t_dlerror-cleared.c
(2.12 KB)
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t_dlerror-false.c
(2.3 KB)
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t_dlinfo.c
(3.49 KB)
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t_dlvsym.c
(4.96 KB)
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t_ifunc.c
(2.6 KB)
Editing: h_locking.c
/*- * Copyright (c) 2011 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Joerg Sonnenberger. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include <dlfcn.h> #include <link_elf.h> #include <pthread.h> #include <stdlib.h> #include <stdio.h> #include <string.h> #include <unistd.h> int sleep_init; int sleep_fini; int dlopen_cookie; int dlclose_cookie; void (*tls_callback_sym)(void); static int dl_iterate_phdr_cb(struct dl_phdr_info *info, size_t size, void *data) { (*tls_callback_sym)(); return 0; } static void * test_dl_iterate_phdr_helper(void *dummy) { sleep(10); _exit(1); } static void test_dl_iterate_phdr(void) { pthread_t t; void *dso; sleep_init = 0; sleep_fini = 0; if ((dso = dlopen("libh_helper_dso2.so", RTLD_LAZY)) == NULL) { fprintf(stderr, "opening helper failed\n"); _exit(1); } tls_callback_sym = dlsym(dso, "tls_callback"); if (tls_callback_sym == NULL) { fprintf(stderr, "bad helper\n"); _exit(1); } pthread_create(&t, NULL, test_dl_iterate_phdr_helper, NULL); if (dl_iterate_phdr(dl_iterate_phdr_cb, NULL)) _exit(1); _exit(0); } static void * init_fini_helper(void *arg) { void *dso; if ((dso = dlopen(arg, RTLD_LAZY)) == NULL) { fprintf(stderr, "opening %s failed\n", (char *)arg); exit(1); } dlclose(dso); return NULL; } static void test_dlopen(void) { pthread_t t1, t2; sleep_init = 1; sleep_fini = 0; printf("%d\n", dlopen_cookie); pthread_create(&t1, NULL, init_fini_helper, __UNCONST("libh_helper_dso2.so")); sleep(1); printf("%d\n", dlopen_cookie); if (dlopen_cookie != 1) _exit(1); sleep(1); pthread_create(&t2, NULL, init_fini_helper, __UNCONST("libutil.so")); printf("%d\n", dlopen_cookie); if (dlopen_cookie != 1) _exit(1); _exit(0); } static void test_dlclose(void) { pthread_t t1, t2; sleep_init = 0; sleep_fini = 1; printf("%d\n", dlclose_cookie); pthread_create(&t1, NULL, init_fini_helper, __UNCONST("libh_helper_dso2.so")); sleep(1); printf("%d\n", dlclose_cookie); if (dlclose_cookie != 2) _exit(1); pthread_create(&t2, NULL, init_fini_helper, __UNCONST("libutil.so")); sleep(1); printf("%d\n", dlclose_cookie); if (dlclose_cookie != 2) _exit(1); _exit(0); } int main(int argc, char **argv) { if (argc != 2) return 1; if (strcmp(argv[1], "dl_iterate_phdr") == 0) test_dl_iterate_phdr(); if (strcmp(argv[1], "dlopen") == 0) test_dlopen(); if (strcmp(argv[1], "dlclose") == 0) test_dlclose(); return 1; }
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