2 * Copyright (c) 2003 Marcel Moolenaar
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
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.
26 * $FreeBSD: src/lib/libpthread/arch/alpha/include/pthread_md.h,v 1.7 2004/08/16 14:07:38 davidxu Exp $
27 * $DragonFly: src/lib/libthread_xu/arch/alpha/include/Attic/pthread_md.h,v 1.1 2005/02/01 12:38:27 davidxu Exp $
30 #ifndef _PTHREAD_MD_H_
31 #define _PTHREAD_MD_H_
35 #define DTV_OFFSET offsetof(struct tcb, tcb_tdv)
39 struct tdv; /* We don't know what this is yet? */
42 struct tdv *tcb_tdv; /* dynamic TLS */
43 struct pthread *tcb_thread;
46 #define _tp __builtin_thread_pointer()
47 #define _tcb ((struct tcb*)((char*)(_tp)))
52 struct tcb *_tcb_ctor(struct pthread *, int);
53 void _tcb_dtor(struct tcb *);
55 /* Called from the thread to set its private data. */
57 _tcb_set(struct tcb *tcb)
59 /* There is no thread yet; use the fake tcb. */
60 __builtin_set_thread_pointer(tcb);
64 * Get the current tcb.
66 static __inline struct tcb *
72 extern struct pthread *_thr_initial;
74 static __inline struct pthread *
78 return (_tcb->tcb_thread);
82 #endif /* _PTHREAD_MD_H_ */