1 /* $NetBSD: linux_sem.h,v 1.11 2021/09/23 06:56:27 ryo 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 #if !defined(__aarch64__) && !defined(__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 */ 107