LXR iproute2/include/uapi/linux/types.h

   1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2#ifndef _LINUX_TYPES_H
   3#define _LINUX_TYPES_H
   4
   5#include <asm/types.h>
   6
   7#ifndef __ASSEMBLY__
   8
   9#include <linux/posix_types.h>
  10
  11
  12/*
  13 * Below are truly Linux-specific types that should never collide with
  14 * any application/library that wants linux/types.h.
  15 */
  16
  17#ifdef __CHECKER__
  18#define __bitwise__ __attribute__((bitwise))
  19#else
  20#define __bitwise__
  21#endif
  22#define __bitwise __bitwise__
  23
  24typedef __u16 __bitwise __le16;
  25typedef __u16 __bitwise __be16;
  26typedef __u32 __bitwise __le32;
  27typedef __u32 __bitwise __be32;
  28typedef __u64 __bitwise __le64;
  29typedef __u64 __bitwise __be64;
  30
  31typedef __u16 __bitwise __sum16;
  32typedef __u32 __bitwise __wsum;
  33
  34/*
  35 * aligned_u64 should be used in defining kernel<->userspace ABIs to avoid
  36 * common 32/64-bit compat problems.
  37 * 64-bit values align to 4-byte boundaries on x86_32 (and possibly other
  38 * architectures) and to 8-byte boundaries on 64-bit architectures.  The new
  39 * aligned_64 type enforces 8-byte alignment so that structs containing
  40 * aligned_64 values have the same alignment on 32-bit and 64-bit architectures.
  41 * No conversions are necessary between 32-bit user-space and a 64-bit kernel.
  42 */
  43#define __aligned_u64 __u64 __attribute__((aligned(8)))
  44#define __aligned_be64 __be64 __attribute__((aligned(8)))
  45#define __aligned_le64 __le64 __attribute__((aligned(8)))
  46
  47typedef unsigned __bitwise __poll_t;
  48
  49#endif /*  __ASSEMBLY__ */
  50#endif /* _LINUX_TYPES_H */
  51