linux/include/linux/types.h
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   1#ifndef _LINUX_TYPES_H
   2#define _LINUX_TYPES_H
   3
   4#include <asm/types.h>
   5
   6#ifndef __ASSEMBLY__
   7#ifdef  __KERNEL__
   8
   9#define DECLARE_BITMAP(name,bits) \
  10        unsigned long name[BITS_TO_LONGS(bits)]
  11#else
  12#ifndef __EXPORTED_HEADERS__
  13#warning "Attempt to use kernel headers from user space, see http://kernelnewbies.org/KernelHeaders"
  14#endif /* __EXPORTED_HEADERS__ */
  15#endif
  16
  17#include <linux/posix_types.h>
  18
  19#ifdef __KERNEL__
  20
  21typedef __u32 __kernel_dev_t;
  22
  23typedef __kernel_fd_set         fd_set;
  24typedef __kernel_dev_t          dev_t;
  25typedef __kernel_ino_t          ino_t;
  26typedef __kernel_mode_t         mode_t;
  27typedef __kernel_nlink_t        nlink_t;
  28typedef __kernel_off_t          off_t;
  29typedef __kernel_pid_t          pid_t;
  30typedef __kernel_daddr_t        daddr_t;
  31typedef __kernel_key_t          key_t;
  32typedef __kernel_suseconds_t    suseconds_t;
  33typedef __kernel_timer_t        timer_t;
  34typedef __kernel_clockid_t      clockid_t;
  35typedef __kernel_mqd_t          mqd_t;
  36
  37typedef _Bool                   bool;
  38
  39typedef __kernel_uid32_t        uid_t;
  40typedef __kernel_gid32_t        gid_t;
  41typedef __kernel_uid16_t        uid16_t;
  42typedef __kernel_gid16_t        gid16_t;
  43
  44typedef unsigned long           uintptr_t;
  45
  46#ifdef CONFIG_UID16
  47/* This is defined by include/asm-{arch}/posix_types.h */
  48typedef __kernel_old_uid_t      old_uid_t;
  49typedef __kernel_old_gid_t      old_gid_t;
  50#endif /* CONFIG_UID16 */
  51
  52#if defined(__GNUC__)
  53typedef __kernel_loff_t         loff_t;
  54#endif
  55
  56/*
  57 * The following typedefs are also protected by individual ifdefs for
  58 * historical reasons:
  59 */
  60#ifndef _SIZE_T
  61#define _SIZE_T
  62typedef __kernel_size_t         size_t;
  63#endif
  64
  65#ifndef _SSIZE_T
  66#define _SSIZE_T
  67typedef __kernel_ssize_t        ssize_t;
  68#endif
  69
  70#ifndef _PTRDIFF_T
  71#define _PTRDIFF_T
  72typedef __kernel_ptrdiff_t      ptrdiff_t;
  73#endif
  74
  75#ifndef _TIME_T
  76#define _TIME_T
  77typedef __kernel_time_t         time_t;
  78#endif
  79
  80#ifndef _CLOCK_T
  81#define _CLOCK_T
  82typedef __kernel_clock_t        clock_t;
  83#endif
  84
  85#ifndef _CADDR_T
  86#define _CADDR_T
  87typedef __kernel_caddr_t        caddr_t;
  88#endif
  89
  90/* bsd */
  91typedef unsigned char           u_char;
  92typedef unsigned short          u_short;
  93typedef unsigned int            u_int;
  94typedef unsigned long           u_long;
  95
  96/* sysv */
  97typedef unsigned char           unchar;
  98typedef unsigned short          ushort;
  99typedef unsigned int            uint;
 100typedef unsigned long           ulong;
 101
 102#ifndef __BIT_TYPES_DEFINED__
 103#define __BIT_TYPES_DEFINED__
 104
 105typedef         __u8            u_int8_t;
 106typedef         __s8            int8_t;
 107typedef         __u16           u_int16_t;
 108typedef         __s16           int16_t;
 109typedef         __u32           u_int32_t;
 110typedef         __s32           int32_t;
 111
 112#endif /* !(__BIT_TYPES_DEFINED__) */
 113
 114typedef         __u8            uint8_t;
 115typedef         __u16           uint16_t;
 116typedef         __u32           uint32_t;
 117
 118#if defined(__GNUC__)
 119typedef         __u64           uint64_t;
 120typedef         __u64           u_int64_t;
 121typedef         __s64           int64_t;
 122#endif
 123
 124/* this is a special 64bit data type that is 8-byte aligned */
 125#define aligned_u64 __u64 __attribute__((aligned(8)))
 126#define aligned_be64 __be64 __attribute__((aligned(8)))
 127#define aligned_le64 __le64 __attribute__((aligned(8)))
 128
 129/**
 130 * The type used for indexing onto a disc or disc partition.
 131 *
 132 * Linux always considers sectors to be 512 bytes long independently
 133 * of the devices real block size.
 134 *
 135 * blkcnt_t is the type of the inode's block count.
 136 */
 137#ifdef CONFIG_LBDAF
 138typedef u64 sector_t;
 139typedef u64 blkcnt_t;
 140#else
 141typedef unsigned long sector_t;
 142typedef unsigned long blkcnt_t;
 143#endif
 144
 145/*
 146 * The type of an index into the pagecache.  Use a #define so asm/types.h
 147 * can override it.
 148 */
 149#ifndef pgoff_t
 150#define pgoff_t unsigned long
 151#endif
 152
 153#endif /* __KERNEL__ */
 154
 155/*
 156 * Below are truly Linux-specific types that should never collide with
 157 * any application/library that wants linux/types.h.
 158 */
 159
 160#ifdef __CHECKER__
 161#define __bitwise__ __attribute__((bitwise))
 162#else
 163#define __bitwise__
 164#endif
 165#ifdef __CHECK_ENDIAN__
 166#define __bitwise __bitwise__
 167#else
 168#define __bitwise
 169#endif
 170
 171typedef __u16 __bitwise __le16;
 172typedef __u16 __bitwise __be16;
 173typedef __u32 __bitwise __le32;
 174typedef __u32 __bitwise __be32;
 175typedef __u64 __bitwise __le64;
 176typedef __u64 __bitwise __be64;
 177
 178typedef __u16 __bitwise __sum16;
 179typedef __u32 __bitwise __wsum;
 180
 181/*
 182 * aligned_u64 should be used in defining kernel<->userspace ABIs to avoid
 183 * common 32/64-bit compat problems.
 184 * 64-bit values align to 4-byte boundaries on x86_32 (and possibly other
 185 * architectures) and to 8-byte boundaries on 64-bit architetures.  The new
 186 * aligned_64 type enforces 8-byte alignment so that structs containing
 187 * aligned_64 values have the same alignment on 32-bit and 64-bit architectures.
 188 * No conversions are necessary between 32-bit user-space and a 64-bit kernel.
 189 */
 190#define __aligned_u64 __u64 __attribute__((aligned(8)))
 191#define __aligned_be64 __be64 __attribute__((aligned(8)))
 192#define __aligned_le64 __le64 __attribute__((aligned(8)))
 193
 194#ifdef __KERNEL__
 195typedef unsigned __bitwise__ gfp_t;
 196typedef unsigned __bitwise__ fmode_t;
 197
 198#ifdef CONFIG_PHYS_ADDR_T_64BIT
 199typedef u64 phys_addr_t;
 200#else
 201typedef u32 phys_addr_t;
 202#endif
 203
 204typedef phys_addr_t resource_size_t;
 205
 206typedef struct {
 207        int counter;
 208} atomic_t;
 209
 210#ifdef CONFIG_64BIT
 211typedef struct {
 212        long counter;
 213} atomic64_t;
 214#endif
 215
 216struct list_head {
 217        struct list_head *next, *prev;
 218};
 219
 220struct hlist_head {
 221        struct hlist_node *first;
 222};
 223
 224struct hlist_node {
 225        struct hlist_node *next, **pprev;
 226};
 227
 228struct ustat {
 229        __kernel_daddr_t        f_tfree;
 230        __kernel_ino_t          f_tinode;
 231        char                    f_fname[6];
 232        char                    f_fpack[6];
 233};
 234
 235#endif  /* __KERNEL__ */
 236#endif /*  __ASSEMBLY__ */
 237#endif /* _LINUX_TYPES_H */
 238