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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 __kernel_nlink_t        nlink_t;
 28 typedef __kernel_off_t          off_t;
 29 typedef __kernel_pid_t          pid_t;
 30 typedef __kernel_daddr_t        daddr_t;
 31 typedef __kernel_key_t          key_t;
 32 typedef __kernel_suseconds_t    suseconds_t;
 33 typedef __kernel_timer_t        timer_t;
 34 typedef __kernel_clockid_t      clockid_t;
 35 typedef __kernel_mqd_t          mqd_t;
 36 
 37 typedef _Bool                   bool;
 38 
 39 typedef __kernel_uid32_t        uid_t;
 40 typedef __kernel_gid32_t        gid_t;
 41 typedef __kernel_uid16_t        uid16_t;
 42 typedef __kernel_gid16_t        gid16_t;
 43 
 44 typedef unsigned long           uintptr_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 #if defined(__GNUC__)
 53 typedef __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
 62 typedef __kernel_size_t         size_t;
 63 #endif
 64 
 65 #ifndef _SSIZE_T
 66 #define _SSIZE_T
 67 typedef __kernel_ssize_t        ssize_t;
 68 #endif
 69 
 70 #ifndef _PTRDIFF_T
 71 #define _PTRDIFF_T
 72 typedef __kernel_ptrdiff_t      ptrdiff_t;
 73 #endif
 74 
 75 #ifndef _TIME_T
 76 #define _TIME_T
 77 typedef __kernel_time_t         time_t;
 78 #endif
 79 
 80 #ifndef _CLOCK_T
 81 #define _CLOCK_T
 82 typedef __kernel_clock_t        clock_t;
 83 #endif
 84 
 85 #ifndef _CADDR_T
 86 #define _CADDR_T
 87 typedef __kernel_caddr_t        caddr_t;
 88 #endif
 89 
 90 /* bsd */
 91 typedef unsigned char           u_char;
 92 typedef unsigned short          u_short;
 93 typedef unsigned int            u_int;
 94 typedef unsigned long           u_long;
 95 
 96 /* sysv */
 97 typedef unsigned char           unchar;
 98 typedef unsigned short          ushort;
 99 typedef unsigned int            uint;
100 typedef unsigned long           ulong;
101 
102 #ifndef __BIT_TYPES_DEFINED__
103 #define __BIT_TYPES_DEFINED__
104 
105 typedef         __u8            u_int8_t;
106 typedef         __s8            int8_t;
107 typedef         __u16           u_int16_t;
108 typedef         __s16           int16_t;
109 typedef         __u32           u_int32_t;
110 typedef         __s32           int32_t;
111 
112 #endif /* !(__BIT_TYPES_DEFINED__) */
113 
114 typedef         __u8            uint8_t;
115 typedef         __u16           uint16_t;
116 typedef         __u32           uint32_t;
117 
118 #if defined(__GNUC__)
119 typedef         __u64           uint64_t;
120 typedef         __u64           u_int64_t;
121 typedef         __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
138 typedef u64 sector_t;
139 typedef u64 blkcnt_t;
140 #else
141 typedef unsigned long sector_t;
142 typedef 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 #ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
154 typedef u64 dma_addr_t;
155 #else
156 typedef u32 dma_addr_t;
157 #endif /* dma_addr_t */
158 
159 #endif /* __KERNEL__ */
160 
161 /*
162  * Below are truly Linux-specific types that should never collide with
163  * any application/library that wants linux/types.h.
164  */
165 
166 #ifdef __CHECKER__
167 #define __bitwise__ __attribute__((bitwise))
168 #else
169 #define __bitwise__
170 #endif
171 #ifdef __CHECK_ENDIAN__
172 #define __bitwise __bitwise__
173 #else
174 #define __bitwise
175 #endif
176 
177 typedef __u16 __bitwise __le16;
178 typedef __u16 __bitwise __be16;
179 typedef __u32 __bitwise __le32;
180 typedef __u32 __bitwise __be32;
181 typedef __u64 __bitwise __le64;
182 typedef __u64 __bitwise __be64;
183 
184 typedef __u16 __bitwise __sum16;
185 typedef __u32 __bitwise __wsum;
186 
187 /*
188  * aligned_u64 should be used in defining kernel<->userspace ABIs to avoid
189  * common 32/64-bit compat problems.
190  * 64-bit values align to 4-byte boundaries on x86_32 (and possibly other
191  * architectures) and to 8-byte boundaries on 64-bit architetures.  The new
192  * aligned_64 type enforces 8-byte alignment so that structs containing
193  * aligned_64 values have the same alignment on 32-bit and 64-bit architectures.
194  * No conversions are necessary between 32-bit user-space and a 64-bit kernel.
195  */
196 #define __aligned_u64 __u64 __attribute__((aligned(8)))
197 #define __aligned_be64 __be64 __attribute__((aligned(8)))
198 #define __aligned_le64 __le64 __attribute__((aligned(8)))
199 
200 #ifdef __KERNEL__
201 typedef unsigned __bitwise__ gfp_t;
202 typedef unsigned __bitwise__ fmode_t;
203 
204 #ifdef CONFIG_PHYS_ADDR_T_64BIT
205 typedef u64 phys_addr_t;
206 #else
207 typedef u32 phys_addr_t;
208 #endif
209 
210 typedef phys_addr_t resource_size_t;
211 
212 typedef struct {
213         int counter;
214 } atomic_t;
215 
216 #ifdef CONFIG_64BIT
217 typedef struct {
218         long counter;
219 } atomic64_t;
220 #endif
221 
222 struct list_head {
223         struct list_head *next, *prev;
224 };
225 
226 struct hlist_head {
227         struct hlist_node *first;
228 };
229 
230 struct hlist_node {
231         struct hlist_node *next, **pprev;
232 };
233 
234 struct ustat {
235         __kernel_daddr_t        f_tfree;
236         __kernel_ino_t          f_tinode;
237         char                    f_fname[6];
238         char                    f_fpack[6];
239 };
240 
241 #endif  /* __KERNEL__ */
242 #endif /*  __ASSEMBLY__ */
243 #endif /* _LINUX_TYPES_H */
244 

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