diff options
Diffstat (limited to 'libc/kernel/common/linux/futex.h')
-rw-r--r-- | libc/kernel/common/linux/futex.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/libc/kernel/common/linux/futex.h b/libc/kernel/common/linux/futex.h new file mode 100644 index 0000000..30f9e59 --- /dev/null +++ b/libc/kernel/common/linux/futex.h @@ -0,0 +1,61 @@ +/**************************************************************************** + **************************************************************************** + *** + *** This header was automatically generated from a Linux kernel header + *** of the same name, to make information necessary for userspace to + *** call into the kernel available to libc. It contains only constants, + *** structures, and macros generated from the original header, and thus, + *** contains no copyrightable information. + *** + **************************************************************************** + ****************************************************************************/ +#ifndef _LINUX_FUTEX_H +#define _LINUX_FUTEX_H + +#include <linux/sched.h> + +#define FUTEX_WAIT 0 +#define FUTEX_WAKE 1 +#define FUTEX_FD 2 +#define FUTEX_REQUEUE 3 +#define FUTEX_CMP_REQUEUE 4 +#define FUTEX_WAKE_OP 5 +#define FUTEX_LOCK_PI 6 +#define FUTEX_UNLOCK_PI 7 +#define FUTEX_TRYLOCK_PI 8 + +struct robust_list { + struct robust_list __user *next; +}; + +struct robust_list_head { + + struct robust_list list; + + long futex_offset; + + struct robust_list __user *list_op_pending; +}; + +#define FUTEX_WAITERS 0x80000000 + +#define FUTEX_OWNER_DIED 0x40000000 + +#define FUTEX_TID_MASK 0x3fffffff + +#define ROBUST_LIST_LIMIT 2048 + +#define FUTEX_OP_SET 0 +#define FUTEX_OP_ADD 1 +#define FUTEX_OP_OR 2 +#define FUTEX_OP_ANDN 3 +#define FUTEX_OP_XOR 4 +#define FUTEX_OP_OPARG_SHIFT 8 +#define FUTEX_OP_CMP_EQ 0 +#define FUTEX_OP_CMP_NE 1 +#define FUTEX_OP_CMP_LT 2 +#define FUTEX_OP_CMP_LE 3 +#define FUTEX_OP_CMP_GT 4 +#define FUTEX_OP_CMP_GE 5 +#define FUTEX_OP(op, oparg, cmp, cmparg) (((op & 0xf) << 28) | ((cmp & 0xf) << 24) | ((oparg & 0xfff) << 12) | (cmparg & 0xfff)) +#endif |