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linux_shm.h revision 1.6 
      1 /*	$NetBSD: linux_shm.h,v 1.6 2004/09/28 19:05:19 jdolecek 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  * 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 _LINUX_SHM_H
     40 #define _LINUX_SHM_H
     41 
     42 #include <sys/shm.h>
     43 
     44 /*
     45  * shm segment control structure
     46  */
     47 struct linux_shmid_ds {
     48 	struct linux_ipc_perm	l_shm_perm;
     49 	int			l_shm_segsz;
     50 	linux_time_t		l_shm_atime;
     51 	linux_time_t		l_shm_dtime;
     52 	linux_time_t		l_shm_ctime;
     53 	ushort			l_shm_cpid;
     54 	ushort			l_shm_lpid;
     55 	short			l_shm_nattch;
     56 	ushort			l_private1;
     57 	void			*l_private2;
     58 	void			*l_private3;
     59 };
     60 
     61 #define LINUX_SHM_RDONLY	0x1000
     62 #define LINUX_SHM_RND		0x2000
     63 #define LINUX_SHM_REMAP		0x4000
     64 
     65 #define LINUX_SHM_LOCK		11
     66 #define LINUX_SHM_UNLOCK	12
     67 #define LINUX_SHM_STAT		13
     68 #define LINUX_SHM_INFO		14
     69 
     70 
     71 /* Pretend the sys_shmat and sys_shmctl syscalls are defined */
     72 struct linux_sys_shmat_args {
     73 	syscallarg(int) shmid;
     74 	syscallarg(void *) shmaddr;
     75 	syscallarg(int) shmflg;
     76 	syscallarg(u_long *) raddr;
     77 };
     78 
     79 struct linux_sys_shmctl_args {
     80 	syscallarg(int) shmid;
     81 	syscallarg(int) cmd;
     82 	syscallarg(struct linux_shmid_ds *) buf;
     83 };
     84 
     85 #ifdef SYSVSHM
     86 #ifdef _KERNEL
     87 __BEGIN_DECLS
     88 int linux_sys_shmget __P((struct lwp *, void *, register_t *));
     89 int linux_sys_shmat __P((struct lwp *, void *, register_t *));
     90 int linux_sys_shmctl __P((struct lwp *, void *, register_t *));
     91 void linux_to_bsd_shmid_ds __P((struct linux_shmid_ds *,
     92     struct shmid_ds *));
     93 void bsd_to_linux_shmid_ds __P((struct shmid_ds *,
     94     struct linux_shmid_ds *));
     95 __END_DECLS
     96 #endif	/* !_KERNEL */
     97 #endif	/* !SYSVSHM */
     98 
     99 #endif /* !_LINUX_SHM_H */
    100