include/linux/types.h

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