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 typedef unsigned int            xid_t;
  40 typedef unsigned int            nid_t;
  41
  42 #ifdef CONFIG_UID16
  43 /* This is defined by include/asm-{arch}/posix_types.h */
  44 typedef __kernel_old_uid_t      old_uid_t;
  45 typedef __kernel_old_gid_t      old_gid_t;
  46 #endif /* CONFIG_UID16 */
  47
  48 /* libc5 includes this file to define uid_t, thus uid_t can never change
  49  * when it is included by non-kernel code
  50  */
  51 #else
  52 typedef __kernel_uid_t          uid_t;
  53 typedef __kernel_gid_t          gid_t;
  54 #endif /* __KERNEL__ */
  55
  56 #if defined(__GNUC__) && !defined(__STRICT_ANSI__)
  57 typedef __kernel_loff_t         loff_t;
  58 #endif
  59
  60 /*
  61  * The following typedefs are also protected by individual ifdefs for
  62  * historical reasons:
  63  */
  64 #ifndef _SIZE_T
  65 #define _SIZE_T
  66 typedef __kernel_size_t         size_t;
  67 #endif
  68
  69 #ifndef _SSIZE_T
  70 #define _SSIZE_T
  71 typedef __kernel_ssize_t        ssize_t;
  72 #endif
  73
  74 #ifndef _PTRDIFF_T
  75 #define _PTRDIFF_T
  76 typedef __kernel_ptrdiff_t      ptrdiff_t;
  77 #endif
  78
  79 #ifndef _TIME_T
  80 #define _TIME_T
  81 typedef __kernel_time_t         time_t;
  82 #endif
  83
  84 #ifndef _CLOCK_T
  85 #define _CLOCK_T
  86 typedef __kernel_clock_t        clock_t;
  87 #endif
  88
  89 #ifndef _CADDR_T
  90 #define _CADDR_T
  91 typedef __kernel_caddr_t        caddr_t;
  92 #endif
  93
  94 /* bsd */
  95 typedef unsigned char           u_char;
  96 typedef unsigned short          u_short;
  97 typedef unsigned int            u_int;
  98 typedef unsigned long           u_long;
  99
 100 /* sysv */
 101 typedef unsigned char           unchar;
 102 typedef unsigned short          ushort;
 103 typedef unsigned int            uint;
 104 typedef unsigned long           ulong;
 105
 106 #ifndef __BIT_TYPES_DEFINED__
 107 #define __BIT_TYPES_DEFINED__
 108
 109 typedef         __u8            u_int8_t;
 110 typedef         __s8            int8_t;
 111 typedef         __u16           u_int16_t;
 112 typedef         __s16           int16_t;
 113 typedef         __u32           u_int32_t;
 114 typedef         __s32           int32_t;
 115
 116 #endif /* !(__BIT_TYPES_DEFINED__) */
 117
 118 typedef         __u8            uint8_t;
 119 typedef         __u16           uint16_t;
 120 typedef         __u32           uint32_t;
 121
 122 #if defined(__GNUC__) && !defined(__STRICT_ANSI__)
 123 typedef         __u64           uint64_t;
 124 typedef         __u64           u_int64_t;
 125 typedef         __s64           int64_t;
 126 #endif
 127
 128 /*
 129  * The type used for indexing onto a disc or disc partition.
 130  * If required, asm/types.h can override it and define
 131  * HAVE_SECTOR_T
 132  */
 133 #ifndef HAVE_SECTOR_T
 134 typedef unsigned long sector_t;
 135 #endif
 136
 137 /*
 138  * The type of an index into the pagecache.  Use a #define so asm/types.h
 139  * can override it.
 140  */
 141 #ifndef pgoff_t
 142 #define pgoff_t unsigned long
 143 #endif
 144
 145 #endif /* __KERNEL_STRICT_NAMES */
 146
 147 /*
 148  * Below are truly Linux-specific types that should never collide with
 149  * any application/library that wants linux/types.h.
 150  */
 151
 152 struct ustat {
 153         __kernel_daddr_t        f_tfree;
 154         __kernel_ino_t          f_tinode;
 155         char                    f_fname[6];
 156         char                    f_fpack[6];
 157 };
 158
 159 #endif /* _LINUX_TYPES_H */