1/* 2 * Copyright (c) 2003 Daniel Eischen <deischen@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Neither the name of the author nor the names of its contributors 12 * may be used to endorse or promote products derived from this software 13 * without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29#include <sys/types.h> 30#include <rtld_tls.h> 31 32#include "pthread_md.h" 33 34/* 35 * The constructors. 36 */ 37struct tcb * 38_tcb_ctor(struct pthread *thread, int initial) 39{ 40 struct tcb *tcb; 41 42 if (initial) 43 __asm __volatile("movq %%fs:0, %0" : "=r" (tcb)); 44 else 45 tcb = _rtld_allocate_tls(NULL, sizeof(struct tcb), 16); 46 if (tcb) 47 tcb->tcb_thread = thread; 48 return (tcb); 49} 50 51void 52_tcb_dtor(struct tcb *tcb) 53{ 54 _rtld_free_tls(tcb, sizeof(struct tcb), 16); 55} 56