linux/include/linux/types.h
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   1#ifndef _LINUX_TYPES_H
   2#define _LINUX_TYPES_H
   3
   4#ifdef  __KERNEL__
   5
   6#define BITS_TO_LONGS(bits) \
   7        (((bits)+BITS_PER_LONG-1)/BITS_PER_LONG)
   8#define DECLARE_BITMAP(name,bits) \
   9        unsigned long name[BITS_TO_LONGS(bits)]
  10
  11#define BITS_PER_BYTE 8
  12#endif
  13
  14#include <linux/posix_types.h>
  15#include <asm/types.h>
  16
  17#ifndef __KERNEL_STRICT_NAMES
  18
  19typedef __u32 __kernel_dev_t;
  20
  21typedef __kernel_fd_set         fd_set;
  22typedef __kernel_dev_t          dev_t;
  23typedef __kernel_ino_t          ino_t;
  24typedef __kernel_mode_t         mode_t;
  25typedef __kernel_nlink_t        nlink_t;
  26typedef __kernel_off_t          off_t;
  27typedef __kernel_pid_t          pid_t;
  28typedef __kernel_daddr_t        daddr_t;
  29typedef __kernel_key_t          key_t;
  30typedef __kernel_suseconds_t    suseconds_t;
  31typedef __kernel_timer_t        timer_t;
  32typedef __kernel_clockid_t      clockid_t;
  33typedef __kernel_mqd_t          mqd_t;
  34
  35#ifdef __KERNEL__
  36typedef _Bool                   bool;
  37
  38typedef __kernel_uid32_t        uid_t;
  39typedef __kernel_gid32_t        gid_t;
  40typedef __kernel_uid16_t        uid16_t;
  41typedef __kernel_gid16_t        gid16_t;
  42
  43#ifdef CONFIG_UID16
  44/* This is defined by include/asm-{arch}/posix_types.h */
  45typedef __kernel_old_uid_t      old_uid_t;
  46typedef __kernel_old_gid_t      old_gid_t;
  47#endif /* CONFIG_UID16 */
  48
  49/* libc5 includes this file to define uid_t, thus uid_t can never change
  50 * when it is included by non-kernel code
  51 */
  52#else
  53typedef __kernel_uid_t          uid_t;
  54typedef __kernel_gid_t          gid_t;
  55#endif /* __KERNEL__ */
  56
  57#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
  58typedef __kernel_loff_t         loff_t;
  59#endif
  60
  61/*
  62 * The following typedefs are also protected by individual ifdefs for
  63 * historical reasons:
  64 */
  65#ifndef _SIZE_T
  66#define _SIZE_T
  67typedef __kernel_size_t         size_t;
  68#endif
  69
  70#ifndef _SSIZE_T
  71#define _SSIZE_T
  72typedef __kernel_ssize_t        ssize_t;
  73#endif
  74
  75#ifndef _PTRDIFF_T
  76#define _PTRDIFF_T
  77typedef __kernel_ptrdiff_t      ptrdiff_t;
  78#endif
  79
  80#ifndef _TIME_T
  81#define _TIME_T
  82typedef __kernel_time_t         time_t;
  83#endif
  84
  85#ifndef _CLOCK_T
  86#define _CLOCK_T
  87typedef __kernel_clock_t        clock_t;
  88#endif
  89
  90#ifndef _CADDR_T
  91#define _CADDR_T
  92typedef __kernel_caddr_t        caddr_t;
  93#endif
  94
  95/* bsd */
  96typedef unsigned char           u_char;
  97typedef unsigned short          u_short;
  98typedef unsigned int            u_int;
  99typedef unsigned long           u_long;
 100
 101/* sysv */
 102typedef unsigned char           unchar;
 103typedef unsigned short          ushort;
 104typedef unsigned int            uint;
 105typedef unsigned long           ulong;
 106
 107#ifndef __BIT_TYPES_DEFINED__
 108#define __BIT_TYPES_DEFINED__
 109
 110typedef         __u8            u_int8_t;
 111typedef         __s8            int8_t;
 112typedef         __u16           u_int16_t;
 113typedef         __s16           int16_t;
 114typedef         __u32           u_int32_t;
 115typedef         __s32           int32_t;
 116
 117#endif /* !(__BIT_TYPES_DEFINED__) */
 118
 119typedef         __u8            uint8_t;
 120typedef         __u16           uint16_t;
 121typedef         __u32           uint32_t;
 122
 123#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
 124typedef         __u64           uint64_t;
 125typedef         __u64           u_int64_t;
 126typedef         __s64           int64_t;
 127#endif
 128
 129/* this is a special 64bit data type that is 8-byte aligned */
 130#define aligned_u64 unsigned long long __attribute__((aligned(8)))
 131#define aligned_be64 __be64 __attribute__((aligned(8)))
 132#define aligned_le64 __le64 __attribute__((aligned(8)))
 133
 134/**
 135 * The type used for indexing onto a disc or disc partition.
 136 *
 137 * Linux always considers sectors to be 512 bytes long independently
 138 * of the devices real block size.
 139 */
 140#ifdef CONFIG_LBD
 141typedef u64 sector_t;
 142#else
 143typedef unsigned long sector_t;
 144#endif
 145
 146/*
 147 * The type of the inode's block count.
 148 */
 149#ifdef CONFIG_LSF
 150typedef u64 blkcnt_t;
 151#else
 152typedef unsigned long blkcnt_t;
 153#endif
 154
 155/*
 156 * The type of an index into the pagecache.  Use a #define so asm/types.h
 157 * can override it.
 158 */
 159#ifndef pgoff_t
 160#define pgoff_t unsigned long
 161#endif
 162
 163#endif /* __KERNEL_STRICT_NAMES */
 164
 165/*
 166 * Below are truly Linux-specific types that should never collide with
 167 * any application/library that wants linux/types.h.
 168 */
 169
 170#ifdef __CHECKER__
 171#define __bitwise__ __attribute__((bitwise))
 172#else
 173#define __bitwise__
 174#endif
 175#ifdef __CHECK_ENDIAN__
 176#define __bitwise __bitwise__
 177#else
 178#define __bitwise
 179#endif
 180
 181typedef __u16 __bitwise __le16;
 182typedef __u16 __bitwise __be16;
 183typedef __u32 __bitwise __le32;
 184typedef __u32 __bitwise __be32;
 185#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
 186typedef __u64 __bitwise __le64;
 187typedef __u64 __bitwise __be64;
 188#endif
 189typedef __u16 __bitwise __sum16;
 190typedef __u32 __bitwise __wsum;
 191
 192#ifdef __KERNEL__
 193typedef unsigned __bitwise__ gfp_t;
 194
 195#ifdef CONFIG_RESOURCES_64BIT
 196typedef u64 resource_size_t;
 197#else
 198typedef u32 resource_size_t;
 199#endif
 200
 201#endif  /* __KERNEL__ */
 202
 203struct ustat {
 204        __kernel_daddr_t        f_tfree;
 205        __kernel_ino_t          f_tinode;
 206        char                    f_fname[6];
 207        char                    f_fpack[6];
 208};
 209
 210#endif /* _LINUX_TYPES_H */
 211
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