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/* $OpenBSD: tib.h,v 1.4 2022/12/27 17:10:06 jmc Exp $ */
/*
* Copyright (c) 2015 Philip Guenther <guenther@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _LIBC_TIB_H_
#define _LIBC_TIB_H_
#include_next <tib.h>
__BEGIN_HIDDEN_DECLS
#ifndef PIC
/*
* Handling for static TLS allocation in statically linked programs
*/
/* Given the base of a TIB allocation, initialize the static TLS for a thread */
struct tib *_static_tls_init(char *_base, void *_thread);
/* size of static TLS allocation */
extern size_t _static_tls_size;
/* alignment of static TLS allocation */
extern int _static_tls_align;
/* base-offset alignment of static TLS allocation */
extern int _static_tls_align_offset;
#endif
/* saved handle to callbacks from ld.so */
extern const dl_cb *_dl_cb;
#if ! TCB_HAVE_MD_GET
/*
* For archs without a fast TCB_GET(): the pointer to the TCB in
* single-threaded programs, whether linked statically or dynamically.
*/
extern void *_libc_single_tcb;
#endif
__END_HIDDEN_DECLS
PROTO_NORMAL(__get_tcb);
PROTO_NORMAL(__set_tcb);
#endif /* _LIBC_TIB_H_ */
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