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 typedef unsigned int            xid_t;
  43 typedef unsigned int            nid_t;
  44 typedef unsigned int            tag_t;
  45
  46 #ifdef CONFIG_UID16
  47 /* This is defined by include/asm-{arch}/posix_types.h */
  48 typedef __kernel_old_uid_t      old_uid_t;
  49 typedef __kernel_old_gid_t      old_gid_t;
  50 #endif /* CONFIG_UID16 */
  51
  52 /* libc5 includes this file to define uid_t, thus uid_t can never change
  53  * when it is included by non-kernel code
  54  */
  55 #else
  56 typedef __kernel_uid_t          uid_t;
  57 typedef __kernel_gid_t          gid_t;
  58 #endif /* __KERNEL__ */
  59
  60 #if defined(__GNUC__) && !defined(__STRICT_ANSI__)
  61 typedef __kernel_loff_t         loff_t;
  62 #endif
  63
  64 /*
  65  * The following typedefs are also protected by individual ifdefs for
  66  * historical reasons:
  67  */
  68 #ifndef _SIZE_T
  69 #define _SIZE_T
  70 typedef __kernel_size_t         size_t;
  71 #endif
  72
  73 #ifndef _SSIZE_T
  74 #define _SSIZE_T
  75 typedef __kernel_ssize_t        ssize_t;
  76 #endif
  77
  78 #ifndef _PTRDIFF_T
  79 #define _PTRDIFF_T
  80 typedef __kernel_ptrdiff_t      ptrdiff_t;
  81 #endif
  82
  83 #ifndef _TIME_T
  84 #define _TIME_T
  85 typedef __kernel_time_t         time_t;
  86 #endif
  87
  88 #ifndef _CLOCK_T
  89 #define _CLOCK_T
  90 typedef __kernel_clock_t        clock_t;
  91 #endif
  92
  93 #ifndef _CADDR_T
  94 #define _CADDR_T
  95 typedef __kernel_caddr_t        caddr_t;
  96 #endif
  97
  98 /* bsd */
  99 typedef unsigned char           u_char;
 100 typedef unsigned short          u_short;
 101 typedef unsigned int            u_int;
 102 typedef unsigned long           u_long;
 103
 104 /* sysv */
 105 typedef unsigned char           unchar;
 106 typedef unsigned short          ushort;
 107 typedef unsigned int            uint;
 108 typedef unsigned long           ulong;
 109
 110 #ifndef __BIT_TYPES_DEFINED__
 111 #define __BIT_TYPES_DEFINED__
 112
 113 typedef         __u8            u_int8_t;
 114 typedef         __s8            int8_t;
 115 typedef         __u16           u_int16_t;
 116 typedef         __s16           int16_t;
 117 typedef         __u32           u_int32_t;
 118 typedef         __s32           int32_t;
 119
 120 #endif /* !(__BIT_TYPES_DEFINED__) */
 121
 122 typedef         __u8            uint8_t;
 123 typedef         __u16           uint16_t;
 124 typedef         __u32           uint32_t;
 125
 126 #if defined(__GNUC__) && !defined(__STRICT_ANSI__)
 127 typedef         __u64           uint64_t;
 128 typedef         __u64           u_int64_t;
 129 typedef         __s64           int64_t;
 130 #endif
 131
 132 /* this is a special 64bit data type that is 8-byte aligned */
 133 #define aligned_u64 unsigned long long __attribute__((aligned(8)))
 134 #define aligned_be64 __be64 __attribute__((aligned(8)))
 135 #define aligned_le64 __le64 __attribute__((aligned(8)))
 136
 137 /**
 138  * The type used for indexing onto a disc or disc partition.
 139  *
 140  * Linux always considers sectors to be 512 bytes long independently
 141  * of the devices real block size.
 142  */
 143 #ifdef CONFIG_LBD
 144 typedef u64 sector_t;
 145 #else
 146 typedef unsigned long sector_t;
 147 #endif
 148
 149 /*
 150  * The type of the inode's block count.
 151  */
 152 #ifdef CONFIG_LSF
 153 typedef u64 blkcnt_t;
 154 #else
 155 typedef unsigned long blkcnt_t;
 156 #endif
 157
 158 /*
 159  * The type of an index into the pagecache.  Use a #define so asm/types.h
 160  * can override it.
 161  */
 162 #ifndef pgoff_t
 163 #define pgoff_t unsigned long
 164 #endif
 165
 166 #endif /* __KERNEL_STRICT_NAMES */
 167
 168 /*
 169  * Below are truly Linux-specific types that should never collide with
 170  * any application/library that wants linux/types.h.
 171  */
 172
 173 #ifdef __CHECKER__
 174 #define __bitwise__ __attribute__((bitwise))
 175 #else
 176 #define __bitwise__
 177 #endif
 178 #ifdef __CHECK_ENDIAN__
 179 #define __bitwise __bitwise__
 180 #else
 181 #define __bitwise
 182 #endif
 183
 184 typedef __u16 __bitwise __le16;
 185 typedef __u16 __bitwise __be16;
 186 typedef __u32 __bitwise __le32;
 187 typedef __u32 __bitwise __be32;
 188 #if defined(__GNUC__) && !defined(__STRICT_ANSI__)
 189 typedef __u64 __bitwise __le64;
 190 typedef __u64 __bitwise __be64;
 191 #endif
 192 typedef __u16 __bitwise __sum16;
 193 typedef __u32 __bitwise __wsum;
 194
 195 #ifdef __KERNEL__
 196 typedef unsigned __bitwise__ gfp_t;
 197
 198 #ifdef CONFIG_RESOURCES_64BIT
 199 typedef u64 resource_size_t;
 200 #else
 201 typedef u32 resource_size_t;
 202 #endif
 203
 204 #endif  /* __KERNEL__ */
 205
 206 struct ustat {
 207         __kernel_daddr_t        f_tfree;
 208         __kernel_ino_t          f_tinode;
 209         char                    f_fname[6];
 210         char                    f_fpack[6];
 211 };
 212
 213 #endif /* _LINUX_TYPES_H */