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  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 */
  57.