1 /* $NetBSD: t_tls_dlopen.c,v 1.3 2012/01/17 20:34:57 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 1.3 2012/01/17 20:34:57 joerg Exp $"); 36 37 #include <atf-c.h> 38 #include <dlfcn.h> 39 #include <pthread.h> 40 #include <unistd.h> 41 42 #include <sys/tls.h> 43 44 #ifdef __HAVE_NO___THREAD 45 #define __thread 46 #endif 47 48 ATF_TC(t_tls_dlopen); 49 50 ATF_TC_HEAD(t_tls_dlopen, tc) 51 { 52 atf_tc_set_md_var(tc, "descr", 53 "Test (un)initialized TLS variables and dlopen"); 54 } 55 56 void (*testf_helper)(int, int); 57 58 __thread int var1 = 1; 59 __thread int var2; 60 __thread int *var3 = &optind; 61 int var4_helper; 62 __thread int *var4 = &var4_helper; 63 64 static void * 65 testf(void *dummy) 66 { 67 ATF_CHECK_EQ(var1, 1); 68 ATF_CHECK_EQ(var2, 0); 69 ATF_CHECK_EQ(var3, &optind); 70 ATF_CHECK_EQ(var4, &var4_helper); 71 testf_helper(2, 2); 72 ATF_CHECK_EQ(var1, 2); 73 ATF_CHECK_EQ(var2, 2); 74 testf_helper(3, 3); 75 ATF_CHECK_EQ(var1, 3); 76 ATF_CHECK_EQ(var2, 3); 77 ATF_CHECK_EQ(var3, &optind); 78 79 return NULL; 80 } 81 82 ATF_TC_BODY(t_tls_dlopen, tc) 83 { 84 void *handle; 85 pthread_t t; 86 87 #ifdef __HAVE_NO___THREAD 88 atf_tc_skip("no TLS support on this platform"); 89 #endif 90 91 handle = dlopen("h_tls_dlopen.so", RTLD_NOW | RTLD_LOCAL); 92 ATF_REQUIRE(handle != NULL); 93 94 testf_helper = dlsym(handle, "testf_dso_helper"); 95 ATF_REQUIRE(testf_helper != NULL); 96 97 testf(NULL); 98 99 pthread_create(&t, 0, testf, 0); 100 pthread_join(t, NULL); 101 102 pthread_create(&t, 0, testf, 0); 103 pthread_join(t, NULL); 104 105 dlclose(handle); 106 } 107 108 ATF_TP_ADD_TCS(tp) 109 { 110 ATF_TP_ADD_TC(tp, t_tls_dlopen); 111 112 return atf_no_error(); 113 } 114