1 /* $NetBSD: t_tls_dlopen.c,v 1.1 2011/03/09 23:10:07 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 1.1 2011/03/09 23:10:07 joerg Exp $"); 36 37 #include <atf-c.h> 38 #include <dlfcn.h> 39 #include <pthread.h> 40 41 #include <sys/tls.h> 42 43 #if !defined(__HAVE_TLS_VARIANT_I) && !defined(__HAVE_TLS_VARIANT_II) 44 #define __thread 45 #endif 46 47 ATF_TC(t_tls_dlopen); 48 49 ATF_TC_HEAD(t_tls_dlopen, tc) 50 { 51 atf_tc_set_md_var(tc, "descr", 52 "Test (un)initialized TLS variables and dlopen"); 53 } 54 55 void (*testf_helper)(int, int); 56 57 __thread int var1 = 1; 58 __thread int var2; 59 60 static void * 61 testf(void *dummy) 62 { 63 ATF_CHECK_EQ(var1, 1); 64 ATF_CHECK_EQ(var2, 0); 65 testf_helper(2, 2); 66 ATF_CHECK_EQ(var1, 2); 67 ATF_CHECK_EQ(var2, 2); 68 testf_helper(3, 3); 69 ATF_CHECK_EQ(var1, 3); 70 ATF_CHECK_EQ(var2, 3); 71 72 return NULL; 73 } 74 75 ATF_TC_BODY(t_tls_dlopen, tc) 76 { 77 void *handle; 78 pthread_t t; 79 80 #if !defined(__HAVE_TLS_VARIANT_I) && !defined(__HAVE_TLS_VARIANT_II) 81 atf_tc_skip("no TLS support on this platform"); 82 #endif 83 84 handle = dlopen("h_tls_dlopen.so", RTLD_NOW | RTLD_LOCAL); 85 ATF_REQUIRE(handle != NULL); 86 87 testf_helper = dlsym(handle, "testf_dso_helper"); 88 ATF_REQUIRE(testf_helper != NULL); 89 90 testf(NULL); 91 92 pthread_create(&t, 0, testf, 0); 93 pthread_join(t, NULL); 94 95 pthread_create(&t, 0, testf, 0); 96 pthread_join(t, NULL); 97 98 dlclose(handle); 99 } 100 101 ATF_TP_ADD_TCS(tp) 102 { 103 ATF_TP_ADD_TC(tp, t_tls_dlopen); 104 105 return atf_no_error(); 106 } 107