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TOMOYO Linux Cross Reference
Linux/include/uapi/linux/types.h

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  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 http://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 

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