xref: /linux-6.15/include/linux/types.h (revision 4fafd5b0)
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 
12 #endif
13 
14 #include <linux/posix_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 _Bool			bool;
36 
37 typedef __kernel_uid32_t	uid_t;
38 typedef __kernel_gid32_t	gid_t;
39 typedef __kernel_uid16_t        uid16_t;
40 typedef __kernel_gid16_t        gid16_t;
41 
42 typedef unsigned long		uintptr_t;
43 
44 #ifdef CONFIG_UID16
45 /* This is defined by include/asm-{arch}/posix_types.h */
46 typedef __kernel_old_uid_t	old_uid_t;
47 typedef __kernel_old_gid_t	old_gid_t;
48 #endif /* CONFIG_UID16 */
49 
50 /* libc5 includes this file to define uid_t, thus uid_t can never change
51  * when it is included by non-kernel code
52  */
53 #else
54 typedef __kernel_uid_t		uid_t;
55 typedef __kernel_gid_t		gid_t;
56 #endif /* __KERNEL__ */
57 
58 #if defined(__GNUC__)
59 typedef __kernel_loff_t		loff_t;
60 #endif
61 
62 /*
63  * The following typedefs are also protected by individual ifdefs for
64  * historical reasons:
65  */
66 #ifndef _SIZE_T
67 #define _SIZE_T
68 typedef __kernel_size_t		size_t;
69 #endif
70 
71 #ifndef _SSIZE_T
72 #define _SSIZE_T
73 typedef __kernel_ssize_t	ssize_t;
74 #endif
75 
76 #ifndef _PTRDIFF_T
77 #define _PTRDIFF_T
78 typedef __kernel_ptrdiff_t	ptrdiff_t;
79 #endif
80 
81 #ifndef _TIME_T
82 #define _TIME_T
83 typedef __kernel_time_t		time_t;
84 #endif
85 
86 #ifndef _CLOCK_T
87 #define _CLOCK_T
88 typedef __kernel_clock_t	clock_t;
89 #endif
90 
91 #ifndef _CADDR_T
92 #define _CADDR_T
93 typedef __kernel_caddr_t	caddr_t;
94 #endif
95 
96 /* bsd */
97 typedef unsigned char		u_char;
98 typedef unsigned short		u_short;
99 typedef unsigned int		u_int;
100 typedef unsigned long		u_long;
101 
102 /* sysv */
103 typedef unsigned char		unchar;
104 typedef unsigned short		ushort;
105 typedef unsigned int		uint;
106 typedef unsigned long		ulong;
107 
108 #ifndef __BIT_TYPES_DEFINED__
109 #define __BIT_TYPES_DEFINED__
110 
111 typedef		__u8		u_int8_t;
112 typedef		__s8		int8_t;
113 typedef		__u16		u_int16_t;
114 typedef		__s16		int16_t;
115 typedef		__u32		u_int32_t;
116 typedef		__s32		int32_t;
117 
118 #endif /* !(__BIT_TYPES_DEFINED__) */
119 
120 typedef		__u8		uint8_t;
121 typedef		__u16		uint16_t;
122 typedef		__u32		uint32_t;
123 
124 #if defined(__GNUC__)
125 typedef		__u64		uint64_t;
126 typedef		__u64		u_int64_t;
127 typedef		__s64		int64_t;
128 #endif
129 
130 /* this is a special 64bit data type that is 8-byte aligned */
131 #define aligned_u64 __u64 __attribute__((aligned(8)))
132 #define aligned_be64 __be64 __attribute__((aligned(8)))
133 #define aligned_le64 __le64 __attribute__((aligned(8)))
134 
135 /**
136  * The type used for indexing onto a disc or disc partition.
137  *
138  * Linux always considers sectors to be 512 bytes long independently
139  * of the devices real block size.
140  *
141  * blkcnt_t is the type of the inode's block count.
142  */
143 #ifdef CONFIG_LBD
144 typedef u64 sector_t;
145 typedef u64 blkcnt_t;
146 #else
147 typedef unsigned long sector_t;
148 typedef unsigned long blkcnt_t;
149 #endif
150 
151 /*
152  * The type of an index into the pagecache.  Use a #define so asm/types.h
153  * can override it.
154  */
155 #ifndef pgoff_t
156 #define pgoff_t unsigned long
157 #endif
158 
159 #endif /* __KERNEL_STRICT_NAMES */
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 #ifdef __KERNEL__
188 typedef unsigned __bitwise__ gfp_t;
189 typedef unsigned __bitwise__ fmode_t;
190 
191 #ifdef CONFIG_PHYS_ADDR_T_64BIT
192 typedef u64 phys_addr_t;
193 #else
194 typedef u32 phys_addr_t;
195 #endif
196 
197 typedef phys_addr_t resource_size_t;
198 
199 typedef struct {
200 	volatile int counter;
201 } atomic_t;
202 
203 #ifdef CONFIG_64BIT
204 typedef struct {
205 	volatile long counter;
206 } atomic64_t;
207 #endif
208 
209 struct ustat {
210 	__kernel_daddr_t	f_tfree;
211 	__kernel_ino_t		f_tinode;
212 	char			f_fname[6];
213 	char			f_fpack[6];
214 };
215 
216 #endif	/* __KERNEL__ */
217 #endif /*  __ASSEMBLY__ */
218 #endif /* _LINUX_TYPES_H */
219