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/*-
* Copyright (c) 2002 Daniel Eischen <deischen@freebsd.org>.
* 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 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 AUTHOR 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.
*
* $FreeBSD$
*/
/*
* Machine-dependent thread prototypes/definitions for the thread kernel.
*/
#ifndef _PTHREAD_MD_H_
#define _PTHREAD_MD_H_
#include <setjmp.h>
#include <ucontext.h>
extern int _thr_setcontext(ucontext_t *);
extern int _thr_getcontext(ucontext_t *);
/*
* These are needed to ensure an application doesn't attempt to jump
* between stacks of different threads. They return the stack of
* jmp_buf, sigjmp_buf, and ucontext respectively.
*/
#define GET_STACK_JB(jb) ((unsigned long)((jb)[0]._jb[2]))
#define GET_STACK_SJB(sjb) ((unsigned long)((sjb)[0]._sjb[2]))
#define GET_STACK_UC(ucp) ((unsigned long)((ucp)->uc_mcontext.mc_esp))
#define THR_GETCONTEXT(ucp) _thr_getcontext(ucp)
#define THR_SETCONTEXT(ucp) _thr_setcontext(ucp)
#endif
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