sys/compat/linux/common/linux_sem.h

   1 /*      $NetBSD: linux_sem.h,v 1.9 2008/04/24 16:42:54 njoly 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
  53 struct 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
  64 struct 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
  75 union 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__
  85 struct linux_sys_semctl_args {
  86         syscallarg(int) semid;
  87         syscallarg(int) semnum;
  88         syscallarg(int) cmd;
  89         syscallarg(union linux_semun) arg;
  90 };
  91 int 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
  98 void bsd_to_linux_semid_ds(struct semid_ds *, struct linux_semid_ds *);
  99 void bsd_to_linux_semid64_ds(struct semid_ds *, struct linux_semid64_ds *);
 100 void linux_to_bsd_semid_ds(struct linux_semid_ds *, struct semid_ds *);
 101 void 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 */