| 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
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| 2 | #ifndef _UAPI_LINUX_TYPES_H |
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| 3 | #define _UAPI_LINUX_TYPES_H |
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| 4 | |
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| 5 | #include <asm/types.h> |
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| 6 | |
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| 7 | #ifndef __ASSEMBLY__ |
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| 8 | #ifndef __KERNEL__ |
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| 9 | #ifndef __EXPORTED_HEADERS__ |
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| 10 | #warning "Attempt to use kernel headers from user space, see https://kernelnewbies.org/KernelHeaders" |
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| 11 | #endif /* __EXPORTED_HEADERS__ */ |
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| 12 | #endif |
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| 13 | |
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| 14 | #include <linux/posix_types.h> |
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| 15 | |
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| 16 | |
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| 17 | /* |
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| 18 | * Below are truly Linux-specific types that should never collide with |
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| 19 | * any application/library that wants linux/types.h. |
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| 20 | */ |
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| 21 | |
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| 22 | /* sparse defines __CHECKER__; see Documentation/dev-tools/sparse.rst */ |
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| 23 | #ifdef __CHECKER__ |
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| 24 | #define __bitwise __attribute__((bitwise)) |
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| 25 | #else |
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| 26 | #define __bitwise |
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| 27 | #endif |
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| 28 | |
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| 29 | /* The kernel doesn't use this legacy form, but user space does */ |
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| 30 | #define __bitwise__ __bitwise |
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| 31 | |
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| 32 | typedef __u16 __bitwise __le16; |
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| 33 | typedef __u16 __bitwise __be16; |
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| 34 | typedef __u32 __bitwise __le32; |
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| 35 | typedef __u32 __bitwise __be32; |
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| 36 | typedef __u64 __bitwise __le64; |
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| 37 | typedef __u64 __bitwise __be64; |
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| 38 | |
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| 39 | typedef __u16 __bitwise __sum16; |
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| 40 | typedef __u32 __bitwise __wsum; |
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| 41 | |
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| 42 | /* |
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| 43 | * aligned_u64 should be used in defining kernel<->userspace ABIs to avoid |
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| 44 | * common 32/64-bit compat problems. |
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| 45 | * 64-bit values align to 4-byte boundaries on x86_32 (and possibly other |
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| 46 | * architectures) and to 8-byte boundaries on 64-bit architectures. The new |
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| 47 | * aligned_64 type enforces 8-byte alignment so that structs containing |
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| 48 | * aligned_64 values have the same alignment on 32-bit and 64-bit architectures. |
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| 49 | * No conversions are necessary between 32-bit user-space and a 64-bit kernel. |
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| 50 | */ |
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| 51 | #define __aligned_u64 __u64 __attribute__((aligned(8))) |
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| 52 | #define __aligned_be64 __be64 __attribute__((aligned(8))) |
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| 53 | #define __aligned_le64 __le64 __attribute__((aligned(8))) |
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| 54 | |
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| 55 | typedef unsigned __bitwise __poll_t; |
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| 56 | |
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| 57 | #endif /* __ASSEMBLY__ */ |
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| 58 | #endif /* _UAPI_LINUX_TYPES_H */ |
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| 59 | |
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