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/*
* Copyright (c) 2003 Marcel Moolenaar
* All rights reserved.
*
* 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 AUTHOR ``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 AUTHOR 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.
*
* $FreeBSD$
*/
#ifndef _PTHREAD_MD_H_
#define _PTHREAD_MD_H_
#define THR_GETCONTEXT(ucp) _ia64_save_context(&(ucp)->uc_mcontext)
#define THR_SETCONTEXT(ucp) _ia64_restore_context(&(ucp)->uc_mcontext, \
0, NULL)
#define THR_ALIGNBYTES 0
#define THR_ALIGN(td) (td)
/* KSE Specific Data. */
struct ksd {
void *ksd_base;
int ksd_size;
};
void _ia64_enter_uts(kse_func_t uts, struct kse_mailbox *km, void *stack,
size_t stacksz);
int _ia64_restore_context(mcontext_t *mc, intptr_t val, intptr_t *loc);
int _ia64_save_context(mcontext_t *mc);
static __inline int
_thread_enter_uts(struct kse_thr_mailbox *tm, struct kse_mailbox *km)
{
if (tm == NULL)
return (-1);
if (!_ia64_save_context(&tm->tm_context.uc_mcontext)) {
_ia64_enter_uts(km->km_func, km, km->km_stack.ss_sp,
km->km_stack.ss_size);
/* We should not reach here. */
return (-1);
}
return (0);
}
static __inline int
_thread_switch(struct kse_thr_mailbox *tm, struct kse_thr_mailbox **thrp)
{
if (tm == NULL)
return (-1);
_ia64_restore_context(&tm->tm_context.uc_mcontext, (intptr_t)tm,
(intptr_t*)thrp);
/* We should not reach here. */
return (-1);
}
#endif /* _PTHREAD_MD_H_ */
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