71 lines
2.7 KiB
C
71 lines
2.7 KiB
C
/* $NetBSD: sa.h,v 1.4 2004/01/02 18:52:17 cl Exp $ */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Nathan J. Williams.
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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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* 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SYS_SA_H
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#define _SYS_SA_H
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#include <sys/ucontext.h>
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struct sa_t {
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ucontext_t *sa_context;
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int sa_id;
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int sa_cpu;
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};
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/* kernel known per upcall stack data */
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struct sa_stackinfo_t {
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__volatile unsigned int sasi_stackgen; /* stack generation counter */
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};
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typedef void (*sa_upcall_t)(int, struct sa_t *[], int, int, void *);
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#define SA_UPCALL_NEWPROC 0
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#define SA_UPCALL_PREEMPTED 1
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#define SA_UPCALL_BLOCKED 2
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#define SA_UPCALL_UNBLOCKED 3
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#define SA_UPCALL_SIGNAL 4
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#define SA_UPCALL_SIGEV 5
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#define SA_UPCALL_USER 6
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#define SA_UPCALL_NUPCALLS 7
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#define SA_FLAG_PREEMPT 0x0001 /* Generate upcalls on a vanilla preempt() */
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#define SA_FLAG_STACKINFO 0x010000 /* Use stackinfo for upcall stack return */
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#endif /* !_SYS_SA_H */
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