xref: /openbsd-src/lib/libc/hidden/tib.h (revision f2da64fbbbf1b03f09f390ab01267c93dfd77c4c)
1 /*	$OpenBSD: tib.h,v 1.1 2016/05/07 19:05:22 guenther Exp $	*/
2 /*
3  * Copyright (c) 2015 Philip Guenther <guenther@openbsd.org>
4  *
5  * Permission to use, copy, modify, and distribute this software for any
6  * purpose with or without fee is hereby granted, provided that the above
7  * copyright notice and this permission notice appear in all copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16  */
17 
18 #ifndef	_LIBC_TIB_H_
19 #define	_LIBC_TIB_H_
20 
21 #include_next <tib.h>
22 
23 __BEGIN_HIDDEN_DECLS
24 
25 #ifndef PIC
26 void	_static_tls_init(char *_base);
27 
28 /* size of static TLS allocation in staticly linked programs */
29 extern size_t	_static_tls_size;
30 #endif
31 
32 #if ! TCB_HAVE_MD_GET
33 /*
34  * For archs without a fast TCB_GET(): the pointer to the TCB in
35  * single-threaded programs, whether linked staticly or dynamically.
36  */
37 extern void	*_libc_single_tcb;
38 #endif
39 
40 __END_HIDDEN_DECLS
41 
42 
43 PROTO_NORMAL(__get_tcb);
44 PROTO_NORMAL(__set_tcb);
45 
46 #endif /* _LIBC_TIB_H_ */
47