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#ifdef __SIZEOF_INT128__
12typedef __signed__ __int128 __s128 __attribute__((aligned(16)));
13typedef unsigned __int128 __u128 __attribute__((aligned(16)));
14#endif
15
16/*
17 * Below are truly Linux-specific types that should never collide with
18 * any application/library that wants linux/types.h.
19 */
20
21/* sparse defines __CHECKER__; see Documentation/dev-tools/sparse.rst */
22#ifdef __CHECKER__
23#define __bitwise __attribute__((bitwise))
24#else
25#define __bitwise
26#endif
27
28/* The kernel doesn't use this legacy form, but user space does */
29#define __bitwise__ __bitwise
30
31typedef __u16 __bitwise __le16;
32typedef __u16 __bitwise __be16;
33typedef __u32 __bitwise __le32;
34typedef __u32 __bitwise __be32;
35typedef __u64 __bitwise __le64;
36typedef __u64 __bitwise __be64;
37
38typedef __u16 __bitwise __sum16;
39typedef __u32 __bitwise __wsum;
40
41/*
42 * aligned_u64 should be used in defining kernel<->userspace ABIs to avoid
43 * common 32/64-bit compat problems.
44 * 64-bit values align to 4-byte boundaries on x86_32 (and possibly other
45 * architectures) and to 8-byte boundaries on 64-bit architectures. The new
46 * aligned_64 type enforces 8-byte alignment so that structs containing
47 * aligned_64 values have the same alignment on 32-bit and 64-bit architectures.
48 * No conversions are necessary between 32-bit user-space and a 64-bit kernel.
49 */
50#define __aligned_u64 __u64 __attribute__((aligned(8)))
51#define __aligned_be64 __be64 __attribute__((aligned(8)))
52#define __aligned_le64 __le64 __attribute__((aligned(8)))
53
54typedef unsigned __bitwise __poll_t;
55
56#endif /* __ASSEMBLY__ */
57#endif /* _LINUX_TYPES_H */
58