1/*	$NetBSD: pthread_md.h,v 1.7 2009/05/16 22:20:40 ad Exp $	*/
2
3/*-
4 * Copyright (c) 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Nathan J. Williams.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _LIB_PTHREAD_HPPA_MD_H
33#define _LIB_PTHREAD_HPPA_MD_H
34
35#include <machine/frame.h>
36
37#define	PTHREAD__ASM_RASOPS
38
39static inline unsigned long
40pthread__sp(void)
41{
42	register unsigned long sp __asm("r30");
43
44	return sp;
45}
46
47#define pthread__uc_sp(ucp) ((ucp)->uc_mcontext.__gregs[_REG_SP])
48
49/*
50 * Set initial, sane values for registers whose values aren't just
51 * "don't care".
52 */
53#define _INITCONTEXT_U_MD(ucp)						\
54	(ucp)->uc_mcontext.__gregs[_REG_PSW] = 0x4000f;
55
56/*
57 * Usable stack space below the ucontext_t.
58 */
59#define STACKSPACE	(HPPA_FRAME_SIZE)
60
61/* Don't need additional memory barriers. */
62#define	PTHREAD__ATOMIC_IS_MEMBAR
63
64#endif /* !_LIB_PTHREAD_HPPA_MD_H */
65