include/linux/types.h

#ifndef _LINUX_TYPES_H
#define _LINUX_TYPES_H


#include <linux/posix_types.h>
#include <asm/types.h>

#ifndef __KERNEL_STRICT_NAMES

typedef __u32 __kernel_dev_t;

typedef __kernel_fd_set		fd_set;
typedef __kernel_dev_t		dev_t;
typedef __kernel_ino_t		ino_t;
typedef __kernel_mode_t		mode_t;
typedef __kernel_nlink_t	nlink_t;
typedef __kernel_off_t		off_t;
typedef __kernel_pid_t		pid_t;
typedef __kernel_daddr_t	daddr_t;
typedef __kernel_key_t		key_t;
typedef __kernel_suseconds_t	suseconds_t;
typedef __kernel_timer_t	timer_t;
typedef __kernel_clockid_t	clockid_t;
typedef __kernel_mqd_t		mqd_t;

typedef __kernel_uid_t		uid_t;
typedef __kernel_gid_t		gid_t;

#if defined(__GNUC__)
typedef __kernel_loff_t		loff_t;
#endif

/*
 * The following typedefs are also protected by individual ifdefs for
 * historical reasons:
 */
#ifndef _SIZE_T
#define _SIZE_T
typedef __kernel_size_t		size_t;
#endif

#ifndef _SSIZE_T
#define _SSIZE_T
typedef __kernel_ssize_t	ssize_t;
#endif

#ifndef _PTRDIFF_T
#define _PTRDIFF_T
typedef __kernel_ptrdiff_t	ptrdiff_t;
#endif

#ifndef _TIME_T
#define _TIME_T
typedef __kernel_time_t		time_t;
#endif

#ifndef _CLOCK_T
#define _CLOCK_T
typedef __kernel_clock_t	clock_t;
#endif

#ifndef _CADDR_T
#define _CADDR_T
typedef __kernel_caddr_t	caddr_t;
#endif

/* bsd */
typedef unsigned char		u_char;
typedef unsigned short		u_short;
typedef unsigned int		u_int;
typedef unsigned long		u_long;

/* sysv */
typedef unsigned char		unchar;
typedef unsigned short		ushort;
typedef unsigned int		uint;
typedef unsigned long		ulong;

#ifndef __BIT_TYPES_DEFINED__
#define __BIT_TYPES_DEFINED__

typedef		__u8		u_int8_t;
typedef		__s8		int8_t;
typedef		__u16		u_int16_t;
typedef		__s16		int16_t;
typedef		__u32		u_int32_t;
typedef		__s32		int32_t;

#endif /* !(__BIT_TYPES_DEFINED__) */

typedef		__u8		uint8_t;
typedef		__u16		uint16_t;
typedef		__u32		uint32_t;

#if defined(__GNUC__)
typedef		__u64		uint64_t;
typedef		__u64		u_int64_t;
typedef		__s64		int64_t;
#endif

/* this is a special 64bit data type that is 8-byte aligned */
#define aligned_u64 __u64 __attribute__((aligned(8)))
#define aligned_be64 __be64 __attribute__((aligned(8)))
#define aligned_le64 __le64 __attribute__((aligned(8)))

/**
 * The type used for indexing onto a disc or disc partition.
 *
 * Linux always considers sectors to be 512 bytes long independently
 * of the devices real block size.
 */
#ifdef CONFIG_LBD
typedef u64 sector_t;
#else
typedef unsigned long sector_t;
#endif

/*
 * The type of the inode's block count.
 */
#ifdef CONFIG_LSF
typedef u64 blkcnt_t;
#else
typedef unsigned long blkcnt_t;
#endif

/*
 * The type of an index into the pagecache.  Use a #define so asm/types.h
 * can override it.
 */
#ifndef pgoff_t
#define pgoff_t unsigned long
#endif

#endif /* __KERNEL_STRICT_NAMES */

/*
 * Below are truly Linux-specific types that should never collide with
 * any application/library that wants linux/types.h.
 */

#ifdef __CHECKER__
#define __bitwise__ __attribute__((bitwise))
#else
#define __bitwise__
#endif
#ifdef __CHECK_ENDIAN__
#define __bitwise __bitwise__
#else
#define __bitwise
#endif

typedef __u16 __bitwise __le16;
typedef __u16 __bitwise __be16;
typedef __u32 __bitwise __le32;
typedef __u32 __bitwise __be32;
#if defined(__GNUC__)
typedef __u64 __bitwise __le64;
typedef __u64 __bitwise __be64;
#endif
typedef __u16 __bitwise __sum16;
typedef __u32 __bitwise __wsum;


#endif /* _LINUX_TYPES_H */