sys/compat/linux/common/linux_shm.h

   1 /*      $NetBSD: linux_shm.h,v 1.11 2008/01/28 14:14:48 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_SHM_H
  33 #define _LINUX_SHM_H
  34
  35 #include <sys/shm.h>
  36
  37 /*
  38  * shm segment control structure
  39  */
  40 struct linux_shmid_ds {
  41         struct linux_ipc_perm   l_shm_perm;
  42         int                     l_shm_segsz;
  43         linux_time_t            l_shm_atime;
  44         linux_time_t            l_shm_dtime;
  45         linux_time_t            l_shm_ctime;
  46         ushort                  l_shm_cpid;
  47         ushort                  l_shm_lpid;
  48         short                   l_shm_nattch;
  49         ushort                  l_private1;
  50         void                    *l_private2;
  51         void                    *l_private3;
  52 };
  53
  54 struct linux_shmid64_ds {
  55         struct linux_ipc64_perm l_shm_perm;
  56         size_t                  l_shm_segsz;
  57         linux_time_t            l_shm_atime;
  58 #ifndef _LP64
  59         u_long                  l____unused1;
  60 #endif
  61         linux_time_t            l_shm_dtime;
  62 #ifndef _LP64
  63         u_long                  l____unused2;
  64 #endif
  65         linux_time_t            l_shm_ctime;
  66 #ifndef _LP64
  67         u_long                  l____unused3;
  68 #endif
  69         int                     l_shm_cpid;
  70         int                     l_shm_lpid;
  71         u_long                  l_shm_nattch;
  72         u_long                  l___unused4;
  73         u_long                  l___unused5;
  74 };
  75
  76 struct linux_shminfo64 {
  77         u_long                  l_shmmax;
  78         u_long                  l_shmmin;
  79         u_long                  l_shmmni;
  80         u_long                  l_shmseg;
  81         u_long                  l_shmall;
  82         u_long                  l___unused1;
  83         u_long                  l___unused2;
  84         u_long                  l___unused3;
  85         u_long                  l___unused4;
  86 };
  87
  88 struct linux_shm_info {
  89         int                     l_used_ids;
  90         u_long                  l_shm_tot;
  91         u_long                  l_shm_rss;
  92         u_long                  l_shm_swp;
  93         u_long                  l_swap_attempts;
  94         u_long                  l_swap_successes;
  95 };
  96
  97 #define LINUX_SHM_RDONLY        0x1000
  98 #define LINUX_SHM_RND           0x2000
  99 #define LINUX_SHM_REMAP         0x4000
 100
 101 #define LINUX_SHM_LOCK          11
 102 #define LINUX_SHM_UNLOCK        12
 103 #define LINUX_SHM_STAT          13
 104 #define LINUX_SHM_INFO          14
 105
 106
 107 /* Pretend the sys_shmat and sys_shmctl syscalls are defined */
 108 struct linux_sys_shmat_args {
 109         syscallarg(int) shmid;
 110         syscallarg(void *) shmaddr;
 111         syscallarg(int) shmflg;
 112         syscallarg(u_long *) raddr;
 113 };
 114
 115 struct linux_sys_shmctl_args {
 116         syscallarg(int) shmid;
 117         syscallarg(int) cmd;
 118         syscallarg(struct linux_shmid_ds *) buf;
 119 };
 120
 121 struct linux_sys_shmget_args {
 122         syscallarg(key_t) key;
 123         syscallarg(size_t) size;
 124         syscallarg(int) shmflg;
 125 };
 126
 127 #ifdef SYSVSHM
 128 #ifdef _KERNEL
 129 __BEGIN_DECLS
 130 int linux_sys_shmget(struct lwp *, const struct linux_sys_shmget_args *, register_t *);
 131 int linux_sys_shmat(struct lwp *, const struct linux_sys_shmat_args *, register_t *);
 132 int linux_sys_shmctl(struct lwp *, const struct linux_sys_shmctl_args *, register_t *);
 133 void linux_to_bsd_shmid_ds(struct linux_shmid_ds *,
 134     struct shmid_ds *);
 135 void linux_to_bsd_shmid64_ds(struct linux_shmid64_ds *,
 136     struct shmid_ds *);
 137 void bsd_to_linux_shmid_ds(struct shmid_ds *,
 138     struct linux_shmid_ds *);
 139 void bsd_to_linux_shmid64_ds(struct shmid_ds *,
 140     struct linux_shmid64_ds *);
 141 __END_DECLS
 142 #endif  /* !_KERNEL */
 143 #endif  /* !SYSVSHM */
 144
 145 #endif /* !_LINUX_SHM_H */