include/linux/types.h

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