LCOM1920-T02G10

/*        $NetBSD: tls.h,v 1.1 2011/03/09 23:10:07 joerg Exp $        */

/*-

 * Copyright (c) 2011 The NetBSD Foundation, Inc.

 * All rights reserved.

 *

 * This code is derived from software contributed to The NetBSD Foundation

 * by Joerg Sonnenberger.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS

 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED

 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS

 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

 * POSSIBILITY OF SUCH DAMAGE.

 */

#ifndef _SYS_TLS_H_

#define _SYS_TLS_H_

#include <sys/cdefs.h>

#include <machine/types.h>

#if defined(__HAVE_TLS_VARIANT_I) || defined(__HAVE_TLS_VARIANT_II)

#if defined(__HAVE_TLS_VARIANT_I) && defined(__HAVE_TLS_VARIANT_II)

#error Only one TLS variant can be supported at a time

#endif

struct tls_tcb {

#ifdef __HAVE_TLS_VARIANT_I

        void        **tcb_dtv;

        void        *tcb_pthread;

#else

        void        *tcb_self;

        void        **tcb_dtv;

        void        *tcb_pthread;

#endif

};

__BEGIN_PUBLIC_DECLS

struct tls_tcb        *_rtld_tls_allocate(void);

void                  _rtld_tls_free(struct tls_tcb *);

void                 _rtld_tls_static_setup(void);

__END_PUBLIC_DECLS

#endif /* __HAVE_TLS_VARIANT_I || __HAVE_TLS_VARIANT_II */

#endif /* _SYS_TLS_H_ */