tests/lib/libc/tls/t_tls_dynamic.c

   1 /*      $NetBSD: t_tls_dynamic.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_dynamic.c,v 1.3 2012/01/17 20:34:57 joerg Exp $");
  36
  37 #include <atf-c.h>
  38 #include <pthread.h>
  39 #include <unistd.h>
  40
  41 #include <sys/tls.h>
  42
  43 #ifdef __HAVE_NO___THREAD
  44 #define __thread
  45 #endif
  46
  47 ATF_TC(t_tls_dynamic);
  48
  49 ATF_TC_HEAD(t_tls_dynamic, tc)
  50 {
  51         atf_tc_set_md_var(tc, "descr",
  52             "Test (un)initialized TLS variables in dynamic binaries");
  53 }
  54
  55 void testf_dso_helper(int, int);
  56
  57 extern __thread int var1;
  58 extern __thread int var2;
  59 extern __thread pid_t (*dso_var1)(void);
  60
  61 __thread int *var3 = &optind;
  62 int var4_helper;
  63 __thread int *var4 = &var4_helper;
  64
  65 static void *
  66 testf(void *dummy)
  67 {
  68         ATF_CHECK_EQ(var1, 1);
  69         ATF_CHECK_EQ(var2, 0);
  70         testf_dso_helper(2, 2);
  71         ATF_CHECK_EQ(var1, 2);
  72         ATF_CHECK_EQ(var2, 2);
  73         testf_dso_helper(3, 3);
  74         ATF_CHECK_EQ(var1, 3);
  75         ATF_CHECK_EQ(var2, 3);
  76         ATF_CHECK_EQ(var3, &optind);
  77         ATF_CHECK_EQ(var4, &var4_helper);
  78         ATF_CHECK_EQ(dso_var1, getpid);
  79
  80         return NULL;
  81 }
  82
  83 ATF_TC_BODY(t_tls_dynamic, tc)
  84 {
  85         pthread_t t;
  86
  87 #ifdef __HAVE_NO___THREAD
  88         atf_tc_skip("no TLS support on this platform");
  89 #endif
  90
  91         testf(NULL);
  92
  93         pthread_create(&t, 0, testf, 0);
  94         pthread_join(t, NULL);
  95
  96         pthread_create(&t, 0, testf, 0);
  97         pthread_join(t, NULL);
  98 }
  99
 100 ATF_TP_ADD_TCS(tp)
 101 {
 102         ATF_TP_ADD_TC(tp, t_tls_dynamic);
 103
 104         return atf_no_error();
 105 }