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 _Bool                   bool;
  37
  38 typedef __kernel_uid32_t        uid_t;
  39 typedef __kernel_gid32_t        gid_t;
  40 typedef __kernel_uid16_t        uid16_t;
  41 typedef __kernel_gid16_t        gid16_t;
  42
  43 #ifdef CONFIG_UID16
  44 /* This is defined by include/asm-{arch}/posix_types.h */
  45 typedef __kernel_old_uid_t      old_uid_t;
  46 typedef __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
  53 typedef __kernel_uid_t          uid_t;
  54 typedef __kernel_gid_t          gid_t;
  55 #endif /* __KERNEL__ */
  56
  57 #if defined(__GNUC__) && !defined(__STRICT_ANSI__)
  58 typedef __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
  67 typedef __kernel_size_t         size_t;
  68 #endif
  69
  70 #ifndef _SSIZE_T
  71 #define _SSIZE_T
  72 typedef __kernel_ssize_t        ssize_t;
  73 #endif
  74
  75 #ifndef _PTRDIFF_T
  76 #define _PTRDIFF_T
  77 typedef __kernel_ptrdiff_t      ptrdiff_t;
  78 #endif
  79
  80 #ifndef _TIME_T
  81 #define _TIME_T
  82 typedef __kernel_time_t         time_t;
  83 #endif
  84
  85 #ifndef _CLOCK_T
  86 #define _CLOCK_T
  87 typedef __kernel_clock_t        clock_t;
  88 #endif
  89
  90 #ifndef _CADDR_T
  91 #define _CADDR_T
  92 typedef __kernel_caddr_t        caddr_t;
  93 #endif
  94
  95 /* bsd */
  96 typedef unsigned char           u_char;
  97 typedef unsigned short          u_short;
  98 typedef unsigned int            u_int;
  99 typedef unsigned long           u_long;
 100
 101 /* sysv */
 102 typedef unsigned char           unchar;
 103 typedef unsigned short          ushort;
 104 typedef unsigned int            uint;
 105 typedef unsigned long           ulong;
 106
 107 #ifndef __BIT_TYPES_DEFINED__
 108 #define __BIT_TYPES_DEFINED__
 109
 110 typedef         __u8            u_int8_t;
 111 typedef         __s8            int8_t;
 112 typedef         __u16           u_int16_t;
 113 typedef         __s16           int16_t;
 114 typedef         __u32           u_int32_t;
 115 typedef         __s32           int32_t;
 116
 117 #endif /* !(__BIT_TYPES_DEFINED__) */
 118
 119 typedef         __u8            uint8_t;
 120 typedef         __u16           uint16_t;
 121 typedef         __u32           uint32_t;
 122
 123 #if defined(__GNUC__) && !defined(__STRICT_ANSI__)
 124 typedef         __u64           uint64_t;
 125 typedef         __u64           u_int64_t;
 126 typedef         __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
 141 typedef u64 sector_t;
 142 #else
 143 typedef unsigned long sector_t;
 144 #endif
 145
 146 /*
 147  * The type of the inode's block count.
 148  */
 149 #ifdef CONFIG_LSF
 150 typedef u64 blkcnt_t;
 151 #else
 152 typedef 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
 181 typedef __u16 __bitwise __le16;
 182 typedef __u16 __bitwise __be16;
 183 typedef __u32 __bitwise __le32;
 184 typedef __u32 __bitwise __be32;
 185 #if defined(__GNUC__) && !defined(__STRICT_ANSI__)
 186 typedef __u64 __bitwise __le64;
 187 typedef __u64 __bitwise __be64;
 188 #endif
 189 typedef __u16 __bitwise __sum16;
 190 typedef __u32 __bitwise __wsum;
 191
 192 #ifdef __KERNEL__
 193 typedef unsigned __bitwise__ gfp_t;
 194
 195 #ifdef CONFIG_RESOURCES_64BIT
 196 typedef u64 resource_size_t;
 197 #else
 198 typedef u32 resource_size_t;
 199 #endif
 200
 201 #endif  /* __KERNEL__ */
 202
 203 struct 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 */