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 #if defined(__NetBSD__) 43 #include <sys/tls.h> 44 #endif 45 46 #ifdef __HAVE_NO___THREAD 47 #define __thread 48 #endif 49 50 ATF_TC(t_tls_dlopen); 51 52 ATF_TC_HEAD(t_tls_dlopen, tc) 53 { 54 atf_tc_set_md_var(tc, "descr", 55 "Test (un)initialized TLS variables and dlopen"); 56 } 57 58 void (*testf_helper)(int, int); 59 60 __thread int var1 = 1; 61 __thread int var2; 62 __thread int *var3 = &optind; 63 int var4_helper; 64 __thread int *var4 = &var4_helper; 65 66 static void * 67 testf(void *dummy) 68 { 69 ATF_CHECK_EQ(var1, 1); 70 ATF_CHECK_EQ(var2, 0); 71 ATF_CHECK_EQ(var3, &optind); 72 ATF_CHECK_EQ(var4, &var4_helper); 73 testf_helper(2, 2); 74 ATF_CHECK_EQ(var1, 2); 75 ATF_CHECK_EQ(var2, 2); 76 testf_helper(3, 3); 77 ATF_CHECK_EQ(var1, 3); 78 ATF_CHECK_EQ(var2, 3); 79 ATF_CHECK_EQ(var3, &optind); 80 81 return NULL; 82 } 83 84 ATF_TC_BODY(t_tls_dlopen, tc) 85 { 86 void *handle; 87 pthread_t t; 88 89 #ifdef __HAVE_NO___THREAD 90 atf_tc_skip("no TLS support on this platform"); 91 #endif 92 93 handle = dlopen("h_tls_dlopen.so", RTLD_NOW | RTLD_LOCAL); 94 ATF_REQUIRE(handle != NULL); 95 96 testf_helper = dlsym(handle, "testf_dso_helper"); 97 ATF_REQUIRE(testf_helper != NULL); 98 99 testf(NULL); 100 101 pthread_create(&t, 0, testf, 0); 102 pthread_join(t, NULL); 103 104 pthread_create(&t, 0, testf, 0); 105 pthread_join(t, NULL); 106 107 dlclose(handle); 108 } 109 110 ATF_TP_ADD_TCS(tp) 111 { 112 ATF_TP_ADD_TC(tp, t_tls_dlopen); 113 114 return atf_no_error(); 115 } 116