1/*- 2 * Copyright (c) 2011 The NetBSD Foundation, Inc. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to The NetBSD Foundation 6 * by Joerg Sonnenberger. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 * POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30#include <poll.h> 31#include <stddef.h> 32#include <sys/tls.h> 33 34#ifdef __HAVE_NO___THREAD 35#define __thread 36#endif 37 38extern int sleep_init; 39extern int sleep_fini; 40extern int dlopen_cookie; 41 42static void __attribute__((__constructor__)) 43init1(void) 44{ 45 dlopen_cookie = 1; 46 if (!sleep_init) 47 return; 48 for (;;) 49 poll(NULL, 0, -1); 50} 51 52extern int dlclose_cookie; 53 54static void __attribute__((__destructor__)) 55fini1(void) 56{ 57 dlclose_cookie = 1; 58 if (!sleep_fini) 59 return; 60 for (;;) 61 poll(NULL, 0, -1); 62} 63 64static __thread int tls_callback_var; 65 66static void __attribute__((__used__)) 67tls_callback(void) 68{ 69 tls_callback_var = 1; 70} 71