16f52b16cSGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2607ca46eSDavid Howells #ifndef _UAPI_LINUX_TYPES_H 3607ca46eSDavid Howells #define _UAPI_LINUX_TYPES_H 4607ca46eSDavid Howells 5607ca46eSDavid Howells #include <asm/types.h> 6607ca46eSDavid Howells 7607ca46eSDavid Howells #ifndef __ASSEMBLY__ 8607ca46eSDavid Howells #ifndef __KERNEL__ 9607ca46eSDavid Howells #ifndef __EXPORTED_HEADERS__ 107f317d34SAlexander A. Klimov #warning "Attempt to use kernel headers from user space, see https://kernelnewbies.org/KernelHeaders" 11607ca46eSDavid Howells #endif /* __EXPORTED_HEADERS__ */ 12607ca46eSDavid Howells #endif 13607ca46eSDavid Howells 14607ca46eSDavid Howells #include <linux/posix_types.h> 15607ca46eSDavid Howells 16*224d80c5SPeter Zijlstra #ifdef __SIZEOF_INT128__ 17*224d80c5SPeter Zijlstra typedef __signed__ __int128 __s128 __attribute__((aligned(16))); 18*224d80c5SPeter Zijlstra typedef unsigned __int128 __u128 __attribute__((aligned(16))); 19*224d80c5SPeter Zijlstra #endif 20607ca46eSDavid Howells 21607ca46eSDavid Howells /* 22607ca46eSDavid Howells * Below are truly Linux-specific types that should never collide with 23607ca46eSDavid Howells * any application/library that wants linux/types.h. 24607ca46eSDavid Howells */ 25607ca46eSDavid Howells 26179fd6baSBjorn Helgaas /* sparse defines __CHECKER__; see Documentation/dev-tools/sparse.rst */ 27607ca46eSDavid Howells #ifdef __CHECKER__ 28c724c866SBjorn Helgaas #define __bitwise __attribute__((bitwise)) 29607ca46eSDavid Howells #else 30c724c866SBjorn Helgaas #define __bitwise 31607ca46eSDavid Howells #endif 32607ca46eSDavid Howells 33caa28984SLinus Torvalds /* The kernel doesn't use this legacy form, but user space does */ 34caa28984SLinus Torvalds #define __bitwise__ __bitwise 35caa28984SLinus Torvalds 36607ca46eSDavid Howells typedef __u16 __bitwise __le16; 37607ca46eSDavid Howells typedef __u16 __bitwise __be16; 38607ca46eSDavid Howells typedef __u32 __bitwise __le32; 39607ca46eSDavid Howells typedef __u32 __bitwise __be32; 40607ca46eSDavid Howells typedef __u64 __bitwise __le64; 41607ca46eSDavid Howells typedef __u64 __bitwise __be64; 42607ca46eSDavid Howells 43607ca46eSDavid Howells typedef __u16 __bitwise __sum16; 44607ca46eSDavid Howells typedef __u32 __bitwise __wsum; 45607ca46eSDavid Howells 46607ca46eSDavid Howells /* 47607ca46eSDavid Howells * aligned_u64 should be used in defining kernel<->userspace ABIs to avoid 48607ca46eSDavid Howells * common 32/64-bit compat problems. 49607ca46eSDavid Howells * 64-bit values align to 4-byte boundaries on x86_32 (and possibly other 50607ca46eSDavid Howells * architectures) and to 8-byte boundaries on 64-bit architectures. The new 51607ca46eSDavid Howells * aligned_64 type enforces 8-byte alignment so that structs containing 52607ca46eSDavid Howells * aligned_64 values have the same alignment on 32-bit and 64-bit architectures. 53607ca46eSDavid Howells * No conversions are necessary between 32-bit user-space and a 64-bit kernel. 54607ca46eSDavid Howells */ 55607ca46eSDavid Howells #define __aligned_u64 __u64 __attribute__((aligned(8))) 56607ca46eSDavid Howells #define __aligned_be64 __be64 __attribute__((aligned(8))) 57607ca46eSDavid Howells #define __aligned_le64 __le64 __attribute__((aligned(8))) 58607ca46eSDavid Howells 598ced390cSAl Viro typedef unsigned __bitwise __poll_t; 608ced390cSAl Viro 61607ca46eSDavid Howells #endif /* __ASSEMBLY__ */ 62607ca46eSDavid Howells #endif /* _UAPI_LINUX_TYPES_H */ 63