a9bb1b1c18
FUTEX_LOCK_PI2 was added to support clock selection as FUTEX_LOCK_PI uses a CLOCK_REALTIME based absolute value since it was implemented, but it does not require that the FUTEX_CLOCK_REALTIME bit is set, because that was introduced later. MFC after: 2 weeks
92 lines
3.9 KiB
C
92 lines
3.9 KiB
C
/* $NetBSD: linux_futex.h,v 1.2 2005/12/11 12:20:19 christos Exp $ */
|
|
|
|
/*-
|
|
* SPDX-License-Identifier: BSD-4-Clause
|
|
*
|
|
* Copyright (c) 2005 Emmanuel Dreyfus, all rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Emmanuel Dreyfus
|
|
* 4. The name of the author may not be used to endorse or promote
|
|
* products derived from this software without specific prior written
|
|
* permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS''
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
|
|
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _LINUX_FUTEX_H
|
|
#define _LINUX_FUTEX_H
|
|
|
|
#define LINUX_FUTEX_WAIT 0
|
|
#define LINUX_FUTEX_WAKE 1
|
|
#define LINUX_FUTEX_FD 2 /* unused */
|
|
#define LINUX_FUTEX_REQUEUE 3
|
|
#define LINUX_FUTEX_CMP_REQUEUE 4
|
|
#define LINUX_FUTEX_WAKE_OP 5
|
|
#define LINUX_FUTEX_LOCK_PI 6
|
|
#define LINUX_FUTEX_UNLOCK_PI 7
|
|
#define LINUX_FUTEX_TRYLOCK_PI 8
|
|
#define LINUX_FUTEX_WAIT_BITSET 9
|
|
#define LINUX_FUTEX_WAKE_BITSET 10
|
|
#define LINUX_FUTEX_WAIT_REQUEUE_PI 11
|
|
#define LINUX_FUTEX_CMP_REQUEUE_PI 12
|
|
#define LINUX_FUTEX_LOCK_PI2 13
|
|
|
|
#define LINUX_FUTEX_PRIVATE_FLAG 128
|
|
#define LINUX_FUTEX_CLOCK_REALTIME 256
|
|
|
|
#define LINUX_FUTEX_CMD_MASK ~(LINUX_FUTEX_PRIVATE_FLAG | \
|
|
LINUX_FUTEX_CLOCK_REALTIME)
|
|
|
|
#define FUTEX_OP_SET 0 /* *(int *)UADDR2 = OPARG; */
|
|
#define FUTEX_OP_ADD 1 /* *(int *)UADDR2 += OPARG; */
|
|
#define FUTEX_OP_OR 2 /* *(int *)UADDR2 |= OPARG; */
|
|
#define FUTEX_OP_ANDN 3 /* *(int *)UADDR2 &= ~OPARG; */
|
|
#define FUTEX_OP_XOR 4 /* *(int *)UADDR2 ^= OPARG; */
|
|
|
|
#define FUTEX_OP_OPARG_SHIFT 8 /* Use (1 << OPARG) instead of OPARG. */
|
|
|
|
#define FUTEX_OP_CMP_EQ 0 /* if (oldval == CMPARG) wake */
|
|
#define FUTEX_OP_CMP_NE 1 /* if (oldval != CMPARG) wake */
|
|
#define FUTEX_OP_CMP_LT 2 /* if (oldval < CMPARG) wake */
|
|
#define FUTEX_OP_CMP_LE 3 /* if (oldval <= CMPARG) wake */
|
|
#define FUTEX_OP_CMP_GT 4 /* if (oldval > CMPARG) wake */
|
|
#define FUTEX_OP_CMP_GE 5 /* if (oldval >= CMPARG) wake */
|
|
|
|
#define FUTEX_WAITERS 0x80000000
|
|
#define FUTEX_OWNER_DIED 0x40000000
|
|
#define FUTEX_TID_MASK 0x3fffffff
|
|
#define FUTEX_BITSET_MATCH_ANY 0xffffffff
|
|
|
|
int futex_xchgl(int oparg, uint32_t *uaddr, int *oldval);
|
|
int futex_addl(int oparg, uint32_t *uaddr, int *oldval);
|
|
int futex_orl(int oparg, uint32_t *uaddr, int *oldval);
|
|
int futex_andl(int oparg, uint32_t *uaddr, int *oldval);
|
|
int futex_xorl(int oparg, uint32_t *uaddr, int *oldval);
|
|
int futex_wake(struct thread *td, uint32_t *uaddr, int val, bool shared);
|
|
void release_futexes(struct thread *,
|
|
struct linux_emuldata *);
|
|
|
|
#endif /* !_LINUX_FUTEX_H */
|