/*      $NetBSD: pthread_md.h,v 1.8 2011/01/25 19:12:05 christos Exp $  */

/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Nathan J. Williams.
*
* 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 _LIB_PTHREAD_HPPA_MD_H
#define _LIB_PTHREAD_HPPA_MD_H

#include <machine/frame.h>

#define PTHREAD__ASM_RASOPS

static inline unsigned long
pthread__sp(void)
{
       register unsigned long sp __asm("r30");

       return sp;
}

#define pthread__uc_sp(ucp) ((ucp)->uc_mcontext.__gregs[_REG_SP])

/*
* Set initial, sane values for registers whose values aren't just
* "don't care".
*/
#define _INITCONTEXT_U_MD(ucp)                                          \
       (ucp)->uc_mcontext.__gregs[_REG_PSW] = 0x4000f;

/*
* Usable stack space below the ucontext_t.
*/
#define STACKSPACE      (HPPA_FRAME_SIZE)

/* Don't need additional memory barriers. */
#define PTHREAD__ATOMIC_IS_MEMBAR

#endif /* !_LIB_PTHREAD_HPPA_MD_H */