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TOMOYO Linux Cross Reference
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 
 21 typedef __u32 __kernel_dev_t;
 22 
 23 typedef __kernel_fd_set         fd_set;
 24 typedef __kernel_dev_t          dev_t;
 25 typedef __kernel_ino_t          ino_t;
 26 typedef __kernel_mode_t         mode_t;
 27 typedef unsigned short          umode_t;
 28 typedef __u32                   nlink_t;
 29 typedef __kernel_off_t          off_t;
 30 typedef __kernel_pid_t          pid_t;
 31 typedef __kernel_daddr_t        daddr_t;
 32 typedef __kernel_key_t          key_t;
 33 typedef __kernel_suseconds_t    suseconds_t;
 34 typedef __kernel_timer_t        timer_t;
 35 typedef __kernel_clockid_t      clockid_t;
 36 typedef __kernel_mqd_t          mqd_t;
 37 
 38 typedef _Bool                   bool;
 39 
 40 typedef __kernel_uid32_t        uid_t;
 41 typedef __kernel_gid32_t        gid_t;
 42 typedef __kernel_uid16_t        uid16_t;
 43 typedef __kernel_gid16_t        gid16_t;
 44 
 45 typedef unsigned long           uintptr_t;
 46 
 47 #ifdef CONFIG_UID16
 48 /* This is defined by include/asm-{arch}/posix_types.h */
 49 typedef __kernel_old_uid_t      old_uid_t;
 50 typedef __kernel_old_gid_t      old_gid_t;
 51 #endif /* CONFIG_UID16 */
 52 
 53 #if defined(__GNUC__)
 54 typedef __kernel_loff_t         loff_t;
 55 #endif
 56 
 57 /*
 58  * The following typedefs are also protected by individual ifdefs for
 59  * historical reasons:
 60  */
 61 #ifndef _SIZE_T
 62 #define _SIZE_T
 63 typedef __kernel_size_t         size_t;
 64 #endif
 65 
 66 #ifndef _SSIZE_T
 67 #define _SSIZE_T
 68 typedef __kernel_ssize_t        ssize_t;
 69 #endif
 70 
 71 #ifndef _PTRDIFF_T
 72 #define _PTRDIFF_T
 73 typedef __kernel_ptrdiff_t      ptrdiff_t;
 74 #endif
 75 
 76 #ifndef _TIME_T
 77 #define _TIME_T
 78 typedef __kernel_time_t         time_t;
 79 #endif
 80 
 81 #ifndef _CLOCK_T
 82 #define _CLOCK_T
 83 typedef __kernel_clock_t        clock_t;
 84 #endif
 85 
 86 #ifndef _CADDR_T
 87 #define _CADDR_T
 88 typedef __kernel_caddr_t        caddr_t;
 89 #endif
 90 
 91 /* bsd */
 92 typedef unsigned char           u_char;
 93 typedef unsigned short          u_short;
 94 typedef unsigned int            u_int;
 95 typedef unsigned long           u_long;
 96 
 97 /* sysv */
 98 typedef unsigned char           unchar;
 99 typedef unsigned short          ushort;
100 typedef unsigned int            uint;
101 typedef unsigned long           ulong;
102 
103 #ifndef __BIT_TYPES_DEFINED__
104 #define __BIT_TYPES_DEFINED__
105 
106 typedef         __u8            u_int8_t;
107 typedef         __s8            int8_t;
108 typedef         __u16           u_int16_t;
109 typedef         __s16           int16_t;
110 typedef         __u32           u_int32_t;
111 typedef         __s32           int32_t;
112 
113 #endif /* !(__BIT_TYPES_DEFINED__) */
114 
115 typedef         __u8            uint8_t;
116 typedef         __u16           uint16_t;
117 typedef         __u32           uint32_t;
118 
119 #if defined(__GNUC__)
120 typedef         __u64           uint64_t;
121 typedef         __u64           u_int64_t;
122 typedef         __s64           int64_t;
123 #endif
124 
125 /* this is a special 64bit data type that is 8-byte aligned */
126 #define aligned_u64 __u64 __attribute__((aligned(8)))
127 #define aligned_be64 __be64 __attribute__((aligned(8)))
128 #define aligned_le64 __le64 __attribute__((aligned(8)))
129 
130 /**
131  * The type used for indexing onto a disc or disc partition.
132  *
133  * Linux always considers sectors to be 512 bytes long independently
134  * of the devices real block size.
135  *
136  * blkcnt_t is the type of the inode's block count.
137  */
138 #ifdef CONFIG_LBDAF
139 typedef u64 sector_t;
140 typedef u64 blkcnt_t;
141 #else
142 typedef unsigned long sector_t;
143 typedef unsigned long blkcnt_t;
144 #endif
145 
146 /*
147  * The type of an index into the pagecache.  Use a #define so asm/types.h
148  * can override it.
149  */
150 #ifndef pgoff_t
151 #define pgoff_t unsigned long
152 #endif
153 
154 #ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
155 typedef u64 dma_addr_t;
156 #else
157 typedef u32 dma_addr_t;
158 #endif /* dma_addr_t */
159 
160 #endif /* __KERNEL__ */
161 
162 /*
163  * Below are truly Linux-specific types that should never collide with
164  * any application/library that wants linux/types.h.
165  */
166 
167 #ifdef __CHECKER__
168 #define __bitwise__ __attribute__((bitwise))
169 #else
170 #define __bitwise__
171 #endif
172 #ifdef __CHECK_ENDIAN__
173 #define __bitwise __bitwise__
174 #else
175 #define __bitwise
176 #endif
177 
178 typedef __u16 __bitwise __le16;
179 typedef __u16 __bitwise __be16;
180 typedef __u32 __bitwise __le32;
181 typedef __u32 __bitwise __be32;
182 typedef __u64 __bitwise __le64;
183 typedef __u64 __bitwise __be64;
184 
185 typedef __u16 __bitwise __sum16;
186 typedef __u32 __bitwise __wsum;
187 
188 /*
189  * aligned_u64 should be used in defining kernel<->userspace ABIs to avoid
190  * common 32/64-bit compat problems.
191  * 64-bit values align to 4-byte boundaries on x86_32 (and possibly other
192  * architectures) and to 8-byte boundaries on 64-bit architectures.  The new
193  * aligned_64 type enforces 8-byte alignment so that structs containing
194  * aligned_64 values have the same alignment on 32-bit and 64-bit architectures.
195  * No conversions are necessary between 32-bit user-space and a 64-bit kernel.
196  */
197 #define __aligned_u64 __u64 __attribute__((aligned(8)))
198 #define __aligned_be64 __be64 __attribute__((aligned(8)))
199 #define __aligned_le64 __le64 __attribute__((aligned(8)))
200 
201 #ifdef __KERNEL__
202 typedef unsigned __bitwise__ gfp_t;
203 typedef unsigned __bitwise__ fmode_t;
204 
205 #ifdef CONFIG_PHYS_ADDR_T_64BIT
206 typedef u64 phys_addr_t;
207 #else
208 typedef u32 phys_addr_t;
209 #endif
210 
211 typedef phys_addr_t resource_size_t;
212 
213 /*
214  * This type is the placeholder for a hardware interrupt number. It has to be
215  * big enough to enclose whatever representation is used by a given platform.
216  */
217 typedef unsigned long irq_hw_number_t;
218 
219 typedef struct {
220         int counter;
221 } atomic_t;
222 
223 #ifdef CONFIG_64BIT
224 typedef struct {
225         long counter;
226 } atomic64_t;
227 #endif
228 
229 struct list_head {
230         struct list_head *next, *prev;
231 };
232 
233 struct hlist_head {
234         struct hlist_node *first;
235 };
236 
237 struct hlist_node {
238         struct hlist_node *next, **pprev;
239 };
240 
241 struct ustat {
242         __kernel_daddr_t        f_tfree;
243         __kernel_ino_t          f_tinode;
244         char                    f_fname[6];
245         char                    f_fpack[6];
246 };
247 
248 /**
249  * struct rcu_head - callback structure for use with RCU
250  * @next: next update requests in a list
251  * @func: actual update function to call after the grace period.
252  */
253 struct rcu_head {
254         struct rcu_head *next;
255         void (*func)(struct rcu_head *head);
256 };
257 
258 #endif  /* __KERNEL__ */
259 #endif /*  __ASSEMBLY__ */
260 #endif /* _LINUX_TYPES_H */
261 

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