FreeBSD/Linux Kernel Cross Reference
sys/sys/sa.h
1 /* $NetBSD: sa.h,v 1.14 2008/10/20 16:16:27 tsutsui Exp $ */
2
3 /*-
4 * Copyright (c) 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Nathan J. Williams.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the NetBSD
21 * Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 * contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39 #ifndef _SYS_SA_H_
40 #define _SYS_SA_H_
41
42 #include <sys/satypes.h>
43 #include <sys/ucontext.h>
44
45 struct sa_t {
46 ucontext_t *sa_context;
47 int sa_id;
48 int sa_cpu;
49 };
50
51 /* kernel known per upcall stack data */
52 struct sa_stackinfo_t {
53 unsigned int sasi_stackgen; /* stack generation counter */
54 };
55
56 #define SA_UPCALL_NEWPROC 0
57 #define SA_UPCALL_PREEMPTED 1
58 #define SA_UPCALL_BLOCKED 2
59 #define SA_UPCALL_UNBLOCKED 3
60 #define SA_UPCALL_SIGNAL 4
61 #define SA_UPCALL_SIGEV 5
62 #define SA_UPCALL_USER 6
63 #define SA_UPCALL_NUPCALLS 7
64
65 #define SA_UPCALL_STRINGS "newproc", "preempted", "blocked", "unblocked", \
66 "signal", "sigev", "user"
67
68 #define SA_FLAG_PREEMPT 0x0001 /* Generate upcalls on a vanilla preempt() */
69
70 #define SA_FLAG_STACKINFO 0x010000 /* Use stackinfo for upcall stack return */
71
72 #ifdef _KERNEL
73 extern int sa_system_disabled;
74 #endif /* _KERNEL */
75
76 #endif /* !_SYS_SA_H_ */
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