2003-06-23 04:52:09 +00:00
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/*
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* Copyright (c) 2003 Marcel Moolenaar
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _PTHREAD_MD_H_
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#define _PTHREAD_MD_H_
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#define THR_GETCONTEXT(ucp) getcontext(ucp)
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#define THR_SETCONTEXT(ucp) setcontext(ucp)
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#define THR_ALIGNBYTES 15
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#define THR_ALIGN(td) (((uintptr_t)(td) + THR_ALIGNBYTES) & ~THR_ALIGNBYTES)
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2003-06-23 23:15:06 +00:00
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/* KSE Specific Data. */
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struct ksd {
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void *ksd_base;
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int ksd_size;
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};
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2003-06-26 03:55:58 +00:00
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void _ia64_enter_uts(kse_func_t uts, struct kse_mailbox *km, void *stack,
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size_t stacksz);
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int _ia64_restore_context(mcontext_t *mc, intptr_t val, intptr_t *loc);
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int _ia64_save_context(mcontext_t *mc);
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static __inline int
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_thread_enter_uts(struct kse_thr_mailbox *tm, struct kse_mailbox *km)
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{
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if (tm == NULL)
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return (-1);
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if (!_ia64_save_context(&tm->tm_context.uc_mcontext)) {
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_ia64_enter_uts(km->km_func, km, km->km_stack.ss_sp,
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km->km_stack.ss_size);
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/* We should not reach here. */
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return (-1);
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}
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return (0);
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}
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static __inline int
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_thread_switch(struct kse_thr_mailbox *tm, struct kse_thr_mailbox **thrp)
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{
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if (tm == NULL)
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return (-1);
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_ia64_restore_context(&tm->tm_context.uc_mcontext, (intptr_t)tm,
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(intptr_t*)thrp);
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/* We should not reach here. */
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return (-1);
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}
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2003-06-23 04:52:09 +00:00
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#endif /* _PTHREAD_MD_H_ */
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