1/* $NetBSD: linux_sem.h,v 1.10 2008/04/28 20:23:44 martin Exp $ */
2
3/*-
4 * Copyright (c) 1995, 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Frank van der Linden and Eric Haszlakiewicz.
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 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _LINUX_SEM_H
33#define _LINUX_SEM_H
34
35#include <sys/sem.h>
36
37/*
38 * Operations for semctl(2), in addition to IPC_STAT and IPC_SET
39 */
40#define LINUX_GETPID 11
41#define LINUX_GETVAL 12
42#define LINUX_GETALL 13
43#define LINUX_GETNCNT 14
44#define LINUX_GETZCNT 15
45#define LINUX_SETVAL 16
46#define LINUX_SETALL 17
47
48/*
49 * Linux semid_ds structure. Internally used pointer fields are not
50 * important to us and have been changed to void *
51 */
52
53struct linux_semid_ds {
54 struct linux_ipc_perm l_sem_perm;
55 linux_time_t l_sem_otime;
56 linux_time_t l_sem_ctime;
57 void *l_sem_base;
58 void *l_eventn;
59 void *l_eventz;
60 void *l_undo;
61 ushort l_sem_nsems;
62};
63
64struct linux_semid64_ds {
65 struct linux_ipc64_perm l_sem_perm;
66 linux_time_t l_sem_otime;
67 unsigned long l___unused1;
68 linux_time_t l_sem_ctime;
69 unsigned long l___unused2;
70 unsigned long l_sem_nsems;
71 unsigned long l___unused3;
72 unsigned long l___unused4;
73};
74
75union linux_semun {
76 int l_val;
77 struct linux_semid_ds *l_buf;
78 ushort *l_array;
79 void *l___buf; /* For unsupported IPC_INFO */
80 void *l___pad;
81};
82
83/* Pretend the sys_semctl syscall is defined */
84#ifndef __amd64__
85struct linux_sys_semctl_args {
86 syscallarg(int) semid;
87 syscallarg(int) semnum;
88 syscallarg(int) cmd;
89 syscallarg(union linux_semun) arg;
90};
91int linux_sys_semctl(struct lwp *, const struct linux_sys_semctl_args *, register_t *);
92#endif
93
94
95#ifdef SYSVSEM
96#ifdef _KERNEL
97__BEGIN_DECLS
98void bsd_to_linux_semid_ds(struct semid_ds *, struct linux_semid_ds *);
99void bsd_to_linux_semid64_ds(struct semid_ds *, struct linux_semid64_ds *);
100void linux_to_bsd_semid_ds(struct linux_semid_ds *, struct semid_ds *);
101void linux_to_bsd_semid64_ds(struct linux_semid64_ds *, struct semid_ds *);
102__END_DECLS
103#endif /* !_KERNEL */
104#endif /* !SYSVSEM */
105
106#endif /* !_LINUX_SEM_H */
107