David Howells | 607ca46 | 2012-10-13 10:46:48 +0100 | [diff] [blame^] | 1 | #ifndef _UAPI_LINUX_TYPES_H |
| 2 | #define _UAPI_LINUX_TYPES_H |
| 3 | |
| 4 | #include <asm/types.h> |
| 5 | |
| 6 | #ifndef __ASSEMBLY__ |
| 7 | #ifndef __KERNEL__ |
| 8 | #ifndef __EXPORTED_HEADERS__ |
| 9 | #warning "Attempt to use kernel headers from user space, see http://kernelnewbies.org/KernelHeaders" |
| 10 | #endif /* __EXPORTED_HEADERS__ */ |
| 11 | #endif |
| 12 | |
| 13 | #include <linux/posix_types.h> |
| 14 | |
| 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 | #ifdef __CHECKER__ |
| 22 | #define __bitwise__ __attribute__((bitwise)) |
| 23 | #else |
| 24 | #define __bitwise__ |
| 25 | #endif |
| 26 | #ifdef __CHECK_ENDIAN__ |
| 27 | #define __bitwise __bitwise__ |
| 28 | #else |
| 29 | #define __bitwise |
| 30 | #endif |
| 31 | |
| 32 | typedef __u16 __bitwise __le16; |
| 33 | typedef __u16 __bitwise __be16; |
| 34 | typedef __u32 __bitwise __le32; |
| 35 | typedef __u32 __bitwise __be32; |
| 36 | typedef __u64 __bitwise __le64; |
| 37 | typedef __u64 __bitwise __be64; |
| 38 | |
| 39 | typedef __u16 __bitwise __sum16; |
| 40 | typedef __u32 __bitwise __wsum; |
| 41 | |
| 42 | /* |
| 43 | * aligned_u64 should be used in defining kernel<->userspace ABIs to avoid |
| 44 | * common 32/64-bit compat problems. |
| 45 | * 64-bit values align to 4-byte boundaries on x86_32 (and possibly other |
| 46 | * architectures) and to 8-byte boundaries on 64-bit architectures. The new |
| 47 | * aligned_64 type enforces 8-byte alignment so that structs containing |
| 48 | * aligned_64 values have the same alignment on 32-bit and 64-bit architectures. |
| 49 | * No conversions are necessary between 32-bit user-space and a 64-bit kernel. |
| 50 | */ |
| 51 | #define __aligned_u64 __u64 __attribute__((aligned(8))) |
| 52 | #define __aligned_be64 __be64 __attribute__((aligned(8))) |
| 53 | #define __aligned_le64 __le64 __attribute__((aligned(8))) |
| 54 | |
| 55 | #endif /* __ASSEMBLY__ */ |
| 56 | #endif /* _UAPI_LINUX_TYPES_H */ |