1/* $NetBSD: linux_futex.h,v 1.2 2005/12/11 12:20:19 christos Exp $ */ 2 3/*- 4 * Copyright (c) 2005 Emmanuel Dreyfus, all rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Emmanuel Dreyfus 17 * 4. The name of the author may not be used to endorse or promote 18 * products derived from this software without specific prior written 19 * permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS'' 22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 23 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 * 33 * $FreeBSD: releng/10.2/sys/compat/linux/linux_futex.h 218118 2011-01-31 06:06:23Z dchagin $ 34 */ 35 36#ifndef _LINUX_FUTEX_H 37#define _LINUX_FUTEX_H 38 39extern LIST_HEAD(futex_list, futex) futex_list; 40extern struct mtx futex_mtx; 41 42#define LINUX_FUTEX_WAIT 0 43#define LINUX_FUTEX_WAKE 1 44#define LINUX_FUTEX_FD 2 /* unused */ 45#define LINUX_FUTEX_REQUEUE 3 46#define LINUX_FUTEX_CMP_REQUEUE 4 47#define LINUX_FUTEX_WAKE_OP 5 48#define LINUX_FUTEX_LOCK_PI 6 49#define LINUX_FUTEX_UNLOCK_PI 7 50#define LINUX_FUTEX_TRYLOCK_PI 8 51#define LINUX_FUTEX_WAIT_BITSET 9 52#define LINUX_FUTEX_WAKE_BITSET 10 53#define LINUX_FUTEX_WAIT_REQUEUE_PI 11 54#define LINUX_FUTEX_CMP_REQUEUE_PI 12 55 56#define LINUX_FUTEX_PRIVATE_FLAG 128 57#define LINUX_FUTEX_CLOCK_REALTIME 256 58 59#define FUTEX_OP_SET 0 /* *(int *)UADDR2 = OPARG; */ 60#define FUTEX_OP_ADD 1 /* *(int *)UADDR2 += OPARG; */ 61#define FUTEX_OP_OR 2 /* *(int *)UADDR2 |= OPARG; */ 62#define FUTEX_OP_ANDN 3 /* *(int *)UADDR2 &= ~OPARG; */ 63#define FUTEX_OP_XOR 4 /* *(int *)UADDR2 ^= OPARG; */ 64 65#define FUTEX_OP_OPARG_SHIFT 8 /* Use (1 << OPARG) instead of OPARG. */ 66 67#define FUTEX_OP_CMP_EQ 0 /* if (oldval == CMPARG) wake */ 68#define FUTEX_OP_CMP_NE 1 /* if (oldval != CMPARG) wake */ 69#define FUTEX_OP_CMP_LT 2 /* if (oldval < CMPARG) wake */ 70#define FUTEX_OP_CMP_LE 3 /* if (oldval <= CMPARG) wake */ 71#define FUTEX_OP_CMP_GT 4 /* if (oldval > CMPARG) wake */ 72#define FUTEX_OP_CMP_GE 5 /* if (oldval >= CMPARG) wake */ 73 74#define FUTEX_WAITERS 0x80000000 75#define FUTEX_OWNER_DIED 0x40000000 76#define FUTEX_TID_MASK 0x3fffffff 77#define FUTEX_BITSET_MATCH_ANY 0xffffffff 78 79void release_futexes(struct proc *); 80 81#endif /* !_LINUX_FUTEX_H */ 82