1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 #ifndef _UAPI_LINUX_TYPES_H 3 #define _UAPI_LINUX_TYPES_H 4 5 #include <asm/types.h> 6 7 #ifndef __ASSEMBLY__ 8 #ifndef __KERNEL__ 9 #ifndef __EXPORTED_HEADERS__ 10 #warning "Attempt to use kernel headers from user space, see https://kernelnewbies.org/KernelHeaders" 11 #endif /* __EXPORTED_HEADERS__ */ 12 #endif 13 14 #include <linux/posix_types.h> 15 16 17 /* 18 * Below are truly Linux-specific types that should never collide with 19 * any application/library that wants linux/types.h. 20 */ 21 22 #ifdef __CHECKER__ 23 #define __bitwise__ __attribute__((bitwise)) 24 #else 25 #define __bitwise__ 26 #endif 27 #define __bitwise __bitwise__ 28 29 typedef __u16 __bitwise __le16; 30 typedef __u16 __bitwise __be16; 31 typedef __u32 __bitwise __le32; 32 typedef __u32 __bitwise __be32; 33 typedef __u64 __bitwise __le64; 34 typedef __u64 __bitwise __be64; 35 36 typedef __u16 __bitwise __sum16; 37 typedef __u32 __bitwise __wsum; 38 39 /* 40 * aligned_u64 should be used in defining kernel<->userspace ABIs to avoid 41 * common 32/64-bit compat problems. 42 * 64-bit values align to 4-byte boundaries on x86_32 (and possibly other 43 * architectures) and to 8-byte boundaries on 64-bit architectures. The new 44 * aligned_64 type enforces 8-byte alignment so that structs containing 45 * aligned_64 values have the same alignment on 32-bit and 64-bit architectures. 46 * No conversions are necessary between 32-bit user-space and a 64-bit kernel. 47 */ 48 #define __aligned_u64 __u64 __attribute__((aligned(8))) 49 #define __aligned_be64 __be64 __attribute__((aligned(8))) 50 #define __aligned_le64 __le64 __attribute__((aligned(8))) 51 52 typedef unsigned __bitwise __poll_t; 53 54 #endif /* __ASSEMBLY__ */ 55 #endif /* _UAPI_LINUX_TYPES_H */ 56