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Elliott Hughes180edef2023-11-02 00:08:05 +00001/*
2 * This file is auto-generated. Modifications will be lost.
3 *
4 * See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/
5 * for more information.
6 */
Ben Cheng655a7c02013-10-16 16:09:24 -07007#ifndef _UAPI_LINUX_FUTEX_H
8#define _UAPI_LINUX_FUTEX_H
9#include <linux/compiler.h>
10#include <linux/types.h>
Ben Cheng655a7c02013-10-16 16:09:24 -070011#define FUTEX_WAIT 0
12#define FUTEX_WAKE 1
13#define FUTEX_FD 2
14#define FUTEX_REQUEUE 3
Ben Cheng655a7c02013-10-16 16:09:24 -070015#define FUTEX_CMP_REQUEUE 4
16#define FUTEX_WAKE_OP 5
17#define FUTEX_LOCK_PI 6
18#define FUTEX_UNLOCK_PI 7
Ben Cheng655a7c02013-10-16 16:09:24 -070019#define FUTEX_TRYLOCK_PI 8
20#define FUTEX_WAIT_BITSET 9
21#define FUTEX_WAKE_BITSET 10
22#define FUTEX_WAIT_REQUEUE_PI 11
Ben Cheng655a7c02013-10-16 16:09:24 -070023#define FUTEX_CMP_REQUEUE_PI 12
Christopher Ferris3a39c0b2021-09-02 00:03:38 +000024#define FUTEX_LOCK_PI2 13
Ben Cheng655a7c02013-10-16 16:09:24 -070025#define FUTEX_PRIVATE_FLAG 128
26#define FUTEX_CLOCK_REALTIME 256
27#define FUTEX_CMD_MASK ~(FUTEX_PRIVATE_FLAG | FUTEX_CLOCK_REALTIME)
Ben Cheng655a7c02013-10-16 16:09:24 -070028#define FUTEX_WAIT_PRIVATE (FUTEX_WAIT | FUTEX_PRIVATE_FLAG)
29#define FUTEX_WAKE_PRIVATE (FUTEX_WAKE | FUTEX_PRIVATE_FLAG)
30#define FUTEX_REQUEUE_PRIVATE (FUTEX_REQUEUE | FUTEX_PRIVATE_FLAG)
31#define FUTEX_CMP_REQUEUE_PRIVATE (FUTEX_CMP_REQUEUE | FUTEX_PRIVATE_FLAG)
Ben Cheng655a7c02013-10-16 16:09:24 -070032#define FUTEX_WAKE_OP_PRIVATE (FUTEX_WAKE_OP | FUTEX_PRIVATE_FLAG)
33#define FUTEX_LOCK_PI_PRIVATE (FUTEX_LOCK_PI | FUTEX_PRIVATE_FLAG)
Christopher Ferris3a39c0b2021-09-02 00:03:38 +000034#define FUTEX_LOCK_PI2_PRIVATE (FUTEX_LOCK_PI2 | FUTEX_PRIVATE_FLAG)
Ben Cheng655a7c02013-10-16 16:09:24 -070035#define FUTEX_UNLOCK_PI_PRIVATE (FUTEX_UNLOCK_PI | FUTEX_PRIVATE_FLAG)
36#define FUTEX_TRYLOCK_PI_PRIVATE (FUTEX_TRYLOCK_PI | FUTEX_PRIVATE_FLAG)
Ben Cheng655a7c02013-10-16 16:09:24 -070037#define FUTEX_WAIT_BITSET_PRIVATE (FUTEX_WAIT_BITSET | FUTEX_PRIVATE_FLAG)
38#define FUTEX_WAKE_BITSET_PRIVATE (FUTEX_WAKE_BITSET | FUTEX_PRIVATE_FLAG)
Tao Baod7db5942015-01-28 10:07:51 -080039#define FUTEX_WAIT_REQUEUE_PI_PRIVATE (FUTEX_WAIT_REQUEUE_PI | FUTEX_PRIVATE_FLAG)
40#define FUTEX_CMP_REQUEUE_PI_PRIVATE (FUTEX_CMP_REQUEUE_PI | FUTEX_PRIVATE_FLAG)
Christopher Ferris0f795212024-01-17 14:17:28 -080041#define FUTEX2_SIZE_U8 0x00
42#define FUTEX2_SIZE_U16 0x01
43#define FUTEX2_SIZE_U32 0x02
44#define FUTEX2_SIZE_U64 0x03
45#define FUTEX2_NUMA 0x04
46#define FUTEX2_PRIVATE FUTEX_PRIVATE_FLAG
47#define FUTEX2_SIZE_MASK 0x03
48#define FUTEX_32 FUTEX2_SIZE_U32
Christopher Ferrisa4792612022-01-10 13:51:15 -080049#define FUTEX_WAITV_MAX 128
50struct futex_waitv {
51 __u64 val;
52 __u64 uaddr;
53 __u32 flags;
54 __u32 __reserved;
55};
Ben Cheng655a7c02013-10-16 16:09:24 -070056struct robust_list {
Elliott Hughes0f0c18f2023-03-29 15:53:31 -070057 struct robust_list * next;
Ben Cheng655a7c02013-10-16 16:09:24 -070058};
59struct robust_list_head {
Tao Baod7db5942015-01-28 10:07:51 -080060 struct robust_list list;
61 long futex_offset;
Elliott Hughes0f0c18f2023-03-29 15:53:31 -070062 struct robust_list * list_op_pending;
Ben Cheng655a7c02013-10-16 16:09:24 -070063};
Ben Cheng655a7c02013-10-16 16:09:24 -070064#define FUTEX_WAITERS 0x80000000
65#define FUTEX_OWNER_DIED 0x40000000
66#define FUTEX_TID_MASK 0x3fffffff
67#define ROBUST_LIST_LIMIT 2048
Ben Cheng655a7c02013-10-16 16:09:24 -070068#define FUTEX_BITSET_MATCH_ANY 0xffffffff
69#define FUTEX_OP_SET 0
70#define FUTEX_OP_ADD 1
71#define FUTEX_OP_OR 2
Ben Cheng655a7c02013-10-16 16:09:24 -070072#define FUTEX_OP_ANDN 3
73#define FUTEX_OP_XOR 4
74#define FUTEX_OP_OPARG_SHIFT 8
75#define FUTEX_OP_CMP_EQ 0
Ben Cheng655a7c02013-10-16 16:09:24 -070076#define FUTEX_OP_CMP_NE 1
77#define FUTEX_OP_CMP_LT 2
78#define FUTEX_OP_CMP_LE 3
79#define FUTEX_OP_CMP_GT 4
Ben Cheng655a7c02013-10-16 16:09:24 -070080#define FUTEX_OP_CMP_GE 5
Tao Baod7db5942015-01-28 10:07:51 -080081#define FUTEX_OP(op,oparg,cmp,cmparg) (((op & 0xf) << 28) | ((cmp & 0xf) << 24) | ((oparg & 0xfff) << 12) | (cmparg & 0xfff))
Ben Cheng655a7c02013-10-16 16:09:24 -070082#endif