1 /* 2 * This header was generated from the Linux kernel headers by update_headers.py, 3 * to provide necessary information from kernel to userspace, such as constants, 4 * structures, and macros, and thus, contains no copyrightable information. 5 */ 6 #ifndef _UAPI_LINUX_FUTEX_H 7 #define _UAPI_LINUX_FUTEX_H 8 #include <linux/compiler.h> 9 #include <linux/types.h> 10 #define FUTEX_WAIT 0 11 #define FUTEX_WAKE 1 12 #define FUTEX_FD 2 13 #define FUTEX_REQUEUE 3 14 #define FUTEX_CMP_REQUEUE 4 15 #define FUTEX_WAKE_OP 5 16 #define FUTEX_LOCK_PI 6 17 #define FUTEX_UNLOCK_PI 7 18 #define FUTEX_TRYLOCK_PI 8 19 #define FUTEX_WAIT_BITSET 9 20 #define FUTEX_WAKE_BITSET 10 21 #define FUTEX_WAIT_REQUEUE_PI 11 22 #define FUTEX_CMP_REQUEUE_PI 12 23 #define FUTEX_PRIVATE_FLAG 128 24 #define FUTEX_CLOCK_REALTIME 256 25 #define FUTEX_CMD_MASK ~(FUTEX_PRIVATE_FLAG | FUTEX_CLOCK_REALTIME) 26 #define FUTEX_WAIT_PRIVATE (FUTEX_WAIT | FUTEX_PRIVATE_FLAG) 27 #define FUTEX_WAKE_PRIVATE (FUTEX_WAKE | FUTEX_PRIVATE_FLAG) 28 #define FUTEX_REQUEUE_PRIVATE (FUTEX_REQUEUE | FUTEX_PRIVATE_FLAG) 29 #define FUTEX_CMP_REQUEUE_PRIVATE (FUTEX_CMP_REQUEUE | FUTEX_PRIVATE_FLAG) 30 #define FUTEX_WAKE_OP_PRIVATE (FUTEX_WAKE_OP | FUTEX_PRIVATE_FLAG) 31 #define FUTEX_LOCK_PI_PRIVATE (FUTEX_LOCK_PI | FUTEX_PRIVATE_FLAG) 32 #define FUTEX_UNLOCK_PI_PRIVATE (FUTEX_UNLOCK_PI | FUTEX_PRIVATE_FLAG) 33 #define FUTEX_TRYLOCK_PI_PRIVATE (FUTEX_TRYLOCK_PI | FUTEX_PRIVATE_FLAG) 34 #define FUTEX_WAIT_BITSET_PRIVATE (FUTEX_WAIT_BITSET | FUTEX_PRIVATE_FLAG) 35 #define FUTEX_WAKE_BITSET_PRIVATE (FUTEX_WAKE_BITSET | FUTEX_PRIVATE_FLAG) 36 #define FUTEX_WAIT_REQUEUE_PI_PRIVATE (FUTEX_WAIT_REQUEUE_PI | \ 37 FUTEX_PRIVATE_FLAG) 38 #define FUTEX_CMP_REQUEUE_PI_PRIVATE (FUTEX_CMP_REQUEUE_PI | \ 39 FUTEX_PRIVATE_FLAG) 40 struct robust_list { 41 struct robust_list __user *next; 42 }; 43 struct robust_list_head { 44 45 struct robust_list list; 46 47 long futex_offset; 48 49 struct robust_list __user *list_op_pending; 50 }; 51 #define FUTEX_WAITERS 0x80000000 52 #define FUTEX_OWNER_DIED 0x40000000 53 #define FUTEX_TID_MASK 0x3fffffff 54 #define ROBUST_LIST_LIMIT 2048 55 #define FUTEX_BITSET_MATCH_ANY 0xffffffff 56 #define FUTEX_OP_SET 0 57 #define FUTEX_OP_ADD 1 58 #define FUTEX_OP_OR 2 59 #define FUTEX_OP_ANDN 3 60 #define FUTEX_OP_XOR 4 61 #define FUTEX_OP_OPARG_SHIFT 8 62 #define FUTEX_OP_CMP_EQ 0 63 #define FUTEX_OP_CMP_NE 1 64 #define FUTEX_OP_CMP_LT 2 65 #define FUTEX_OP_CMP_LE 3 66 #define FUTEX_OP_CMP_GT 4 67 #define FUTEX_OP_CMP_GE 5 68 #define FUTEX_OP(op, oparg, cmp, cmparg) \ 69 (((op & 0xf) << 28) | ((cmp & 0xf) << 24) \ 70 | ((oparg & 0xfff) << 12) | (cmparg & 0xfff)) 71 #endif 72