xref: /freebsd/sys/sys/types.h (revision cf5d9c41)
1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
3  *
4  * Copyright (c) 1982, 1986, 1991, 1993, 1994
5  *	The Regents of the University of California.  All rights reserved.
6  * (c) UNIX System Laboratories, Inc.
7  * All or some portions of this file are derived from material licensed
8  * to the University of California by American Telephone and Telegraph
9  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
10  * the permission of UNIX System Laboratories, Inc.
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, are permitted provided that the following conditions
14  * are met:
15  * 1. Redistributions of source code must retain the above copyright
16  *    notice, this list of conditions and the following disclaimer.
17  * 2. Redistributions in binary form must reproduce the above copyright
18  *    notice, this list of conditions and the following disclaimer in the
19  *    documentation and/or other materials provided with the distribution.
20  * 3. Neither the name of the University nor the names of its contributors
21  *    may be used to endorse or promote products derived from this software
22  *    without specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34  * SUCH DAMAGE.
35  */
36 
37 #ifndef _SYS_TYPES_H_
38 #define	_SYS_TYPES_H_
39 
40 #include <sys/cdefs.h>
41 
42 /* Machine type dependent parameters. */
43 #include <machine/endian.h>
44 #include <sys/_types.h>
45 
46 #include <sys/_pthreadtypes.h>
47 
48 #if __BSD_VISIBLE
49 typedef	unsigned char	u_char;
50 typedef	unsigned short	u_short;
51 typedef	unsigned int	u_int;
52 typedef	unsigned long	u_long;
53 #ifndef _KERNEL
54 typedef	unsigned short	ushort;		/* Sys V compatibility */
55 typedef	unsigned int	uint;		/* Sys V compatibility */
56 #endif
57 #endif
58 
59 /*
60  * XXX POSIX sized integrals that should appear only in <sys/stdint.h>.
61  */
62 #include <sys/_stdint.h>
63 
64 typedef __uint8_t	u_int8_t;	/* unsigned integrals (deprecated) */
65 typedef __uint16_t	u_int16_t;
66 typedef __uint32_t	u_int32_t;
67 typedef __uint64_t	u_int64_t;
68 
69 typedef	__uint64_t	u_quad_t;	/* quads (deprecated) */
70 typedef	__int64_t	quad_t;
71 typedef	quad_t *	qaddr_t;
72 
73 typedef	char *		caddr_t;	/* core address */
74 typedef	const char *	c_caddr_t;	/* core address, pointer to const */
75 
76 #ifndef _BLKSIZE_T_DECLARED
77 typedef	__blksize_t	blksize_t;
78 #define	_BLKSIZE_T_DECLARED
79 #endif
80 
81 typedef	__cpuwhich_t	cpuwhich_t;
82 typedef	__cpulevel_t	cpulevel_t;
83 typedef	__cpusetid_t	cpusetid_t;
84 
85 #ifndef _BLKCNT_T_DECLARED
86 typedef	__blkcnt_t	blkcnt_t;
87 #define	_BLKCNT_T_DECLARED
88 #endif
89 
90 #ifndef _CLOCK_T_DECLARED
91 typedef	__clock_t	clock_t;
92 #define	_CLOCK_T_DECLARED
93 #endif
94 
95 #ifndef _CLOCKID_T_DECLARED
96 typedef	__clockid_t	clockid_t;
97 #define	_CLOCKID_T_DECLARED
98 #endif
99 
100 typedef	__critical_t	critical_t;	/* Critical section value */
101 typedef	__daddr_t	daddr_t;	/* disk address */
102 
103 #ifndef _DEV_T_DECLARED
104 typedef	__dev_t		dev_t;		/* device number or struct cdev */
105 #define	_DEV_T_DECLARED
106 #endif
107 
108 #ifndef _FFLAGS_T_DECLARED
109 typedef	__fflags_t	fflags_t;	/* file flags */
110 #define	_FFLAGS_T_DECLARED
111 #endif
112 
113 typedef	__fixpt_t	fixpt_t;	/* fixed point number */
114 
115 #ifndef _FSBLKCNT_T_DECLARED		/* for statvfs() */
116 typedef	__fsblkcnt_t	fsblkcnt_t;
117 typedef	__fsfilcnt_t	fsfilcnt_t;
118 #define	_FSBLKCNT_T_DECLARED
119 #endif
120 
121 #ifndef _GID_T_DECLARED
122 typedef	__gid_t		gid_t;		/* group id */
123 #define	_GID_T_DECLARED
124 #endif
125 
126 #ifndef _IN_ADDR_T_DECLARED
127 typedef	__uint32_t	in_addr_t;	/* base type for internet address */
128 #define	_IN_ADDR_T_DECLARED
129 #endif
130 
131 #ifndef _IN_PORT_T_DECLARED
132 typedef	__uint16_t	in_port_t;
133 #define	_IN_PORT_T_DECLARED
134 #endif
135 
136 #ifndef _ID_T_DECLARED
137 typedef	__id_t		id_t;		/* can hold a uid_t or pid_t */
138 #define	_ID_T_DECLARED
139 #endif
140 
141 #ifndef _INO_T_DECLARED
142 typedef	__ino_t		ino_t;		/* inode number */
143 #define	_INO_T_DECLARED
144 #endif
145 
146 #ifndef _KEY_T_DECLARED
147 typedef	__key_t		key_t;		/* IPC key (for Sys V IPC) */
148 #define	_KEY_T_DECLARED
149 #endif
150 
151 #ifndef _LWPID_T_DECLARED
152 typedef	__lwpid_t	lwpid_t;	/* Thread ID (a.k.a. LWP) */
153 #define	_LWPID_T_DECLARED
154 #endif
155 
156 #ifndef _MODE_T_DECLARED
157 typedef	__mode_t	mode_t;		/* permissions */
158 #define	_MODE_T_DECLARED
159 #endif
160 
161 #ifndef _ACCMODE_T_DECLARED
162 typedef	__accmode_t	accmode_t;	/* access permissions */
163 #define	_ACCMODE_T_DECLARED
164 #endif
165 
166 #ifndef _NLINK_T_DECLARED
167 typedef	__nlink_t	nlink_t;	/* link count */
168 #define	_NLINK_T_DECLARED
169 #endif
170 
171 #ifndef _OFF_T_DECLARED
172 typedef	__off_t		off_t;		/* file offset */
173 #define	_OFF_T_DECLARED
174 #endif
175 
176 #ifndef _OFF64_T_DECLARED
177 typedef	__off64_t	off64_t;	/* file offset (alias) */
178 #define	_OFF64_T_DECLARED
179 #endif
180 
181 #ifndef _PID_T_DECLARED
182 typedef	__pid_t		pid_t;		/* process id */
183 #define	_PID_T_DECLARED
184 #endif
185 
186 typedef	__register_t	register_t;
187 
188 #ifndef _RLIM_T_DECLARED
189 typedef	__rlim_t	rlim_t;		/* resource limit */
190 #define	_RLIM_T_DECLARED
191 #endif
192 
193 typedef	__sbintime_t	sbintime_t;
194 
195 typedef	__segsz_t	segsz_t;	/* segment size (in pages) */
196 
197 #ifndef _SIZE_T_DECLARED
198 typedef	__size_t	size_t;
199 #define	_SIZE_T_DECLARED
200 #endif
201 
202 #ifndef _SSIZE_T_DECLARED
203 typedef	__ssize_t	ssize_t;
204 #define	_SSIZE_T_DECLARED
205 #endif
206 
207 #ifndef _SUSECONDS_T_DECLARED
208 typedef	__suseconds_t	suseconds_t;	/* microseconds (signed) */
209 #define	_SUSECONDS_T_DECLARED
210 #endif
211 
212 #ifndef _TIME_T_DECLARED
213 typedef	__time_t	time_t;
214 #define	_TIME_T_DECLARED
215 #endif
216 
217 #ifndef _TIMER_T_DECLARED
218 typedef	__timer_t	timer_t;
219 #define	_TIMER_T_DECLARED
220 #endif
221 
222 #ifndef _MQD_T_DECLARED
223 typedef	__mqd_t	mqd_t;
224 #define	_MQD_T_DECLARED
225 #endif
226 
227 typedef	__u_register_t	u_register_t;
228 
229 #ifndef _UID_T_DECLARED
230 typedef	__uid_t		uid_t;		/* user id */
231 #define	_UID_T_DECLARED
232 #endif
233 
234 #ifndef _USECONDS_T_DECLARED
235 typedef	__useconds_t	useconds_t;	/* microseconds (unsigned) */
236 #define	_USECONDS_T_DECLARED
237 #endif
238 
239 #ifndef _CAP_IOCTL_T_DECLARED
240 #define	_CAP_IOCTL_T_DECLARED
241 typedef	unsigned long	cap_ioctl_t;
242 #endif
243 
244 #ifndef _CAP_RIGHTS_T_DECLARED
245 #define	_CAP_RIGHTS_T_DECLARED
246 struct cap_rights;
247 
248 typedef	struct cap_rights	cap_rights_t;
249 #endif
250 
251 /*
252  * Types suitable for exporting physical addresses, virtual addresses
253  * (pointers), and memory object sizes from the kernel independent of native
254  * word size.  These should be used in place of vm_paddr_t, (u)intptr_t, and
255  * size_t in structs which contain such types that are shared with userspace.
256  */
257 typedef	__uint64_t	kpaddr_t;
258 typedef	__uint64_t	kvaddr_t;
259 typedef	__uint64_t	ksize_t;
260 typedef	__int64_t	kssize_t;
261 
262 typedef	__vm_offset_t	vm_offset_t;
263 typedef	__uint64_t	vm_ooffset_t;
264 typedef	__vm_paddr_t	vm_paddr_t;
265 typedef	__uint64_t	vm_pindex_t;
266 typedef	__vm_size_t	vm_size_t;
267 
268 typedef __rman_res_t    rman_res_t;
269 
270 typedef __register_t	syscallarg_t;
271 
272 #ifdef _KERNEL
273 typedef	unsigned int	boolean_t;
274 typedef	struct _device	*device_t;
275 typedef	__intfptr_t	intfptr_t;
276 
277 /*
278  * XXX this is fixed width for historical reasons.  It should have had type
279  * __int_fast32_t.  Fixed-width types should not be used unless binary
280  * compatibility is essential.  Least-width types should be used even less
281  * since they provide smaller benefits.
282  *
283  * XXX should be MD.
284  *
285  * XXX this is bogus in -current, but still used for spl*().
286  */
287 typedef	__uint32_t	intrmask_t;	/* Interrupt mask (spl, xxx_imask...) */
288 
289 typedef	__uintfptr_t	uintfptr_t;
290 typedef	__uint64_t	uoff_t;
291 typedef	char		vm_memattr_t;	/* memory attribute codes */
292 typedef	struct vm_page	*vm_page_t;
293 
294 #define offsetof(type, field) __offsetof(type, field)
295 #endif /* _KERNEL */
296 
297 #if	defined(_KERNEL) || defined(_STANDALONE)
298 #if !defined(__bool_true_false_are_defined) && !defined(__cplusplus)
299 #define	__bool_true_false_are_defined	1
300 #define	false	0
301 #define	true	1
302 typedef	_Bool	bool;
303 #endif /* !__bool_true_false_are_defined && !__cplusplus */
304 #endif /* KERNEL || _STANDALONE */
305 
306 /*
307  * The following are all things that really shouldn't exist in this header,
308  * since its purpose is to provide typedefs, not miscellaneous doodads.
309  */
310 #include <sys/bitcount.h>
311 
312 #if __BSD_VISIBLE
313 
314 #include <sys/select.h>
315 
316 /*
317  * The major and minor numbers are encoded in dev_t as MMMmmmMm (where
318  * letters correspond to bytes).  The encoding of the lower 4 bytes is
319  * constrained by compatibility with 16-bit and 32-bit dev_t's.  The
320  * encoding of the upper 4 bytes is the least unnatural one consistent
321  * with this and other constraints.  Also, the decoding of the m bytes by
322  * minor() is unnatural to maximize compatibility subject to not discarding
323  * bits.  The upper m byte is shifted into the position of the lower M byte
324  * instead of shifting 3 upper m bytes to close the gap.  Compatibility for
325  * minor() is achieved iff the upper m byte is 0.
326  */
327 #define	major(d)	__major(d)
328 static __inline int
__major(dev_t _d)329 __major(dev_t _d)
330 {
331 	return (((_d >> 32) & 0xffffff00) | ((_d >> 8) & 0xff));
332 }
333 #define	minor(d)	__minor(d)
334 static __inline int
__minor(dev_t _d)335 __minor(dev_t _d)
336 {
337 	return (((_d >> 24) & 0xff00) | (_d & 0xffff00ff));
338 }
339 #define	makedev(M, m)	__makedev((M), (m))
340 static __inline dev_t
__makedev(int _Major,int _Minor)341 __makedev(int _Major, int _Minor)
342 {
343 	return (((dev_t)(_Major & 0xffffff00) << 32) | ((_Major & 0xff) << 8) |
344 	    ((dev_t)(_Minor & 0xff00) << 24) | (_Minor & 0xffff00ff));
345 }
346 
347 #if (defined(__clang__) || (defined(__GNUC__) && __GNUC__ >= 13))
348 #define __enum_uint8_decl(name)	enum enum_ ## name ## _uint8 : uint8_t
349 #define __enum_uint8(name)	enum enum_ ## name ## _uint8
350 #else
351 /*
352  * Note: there is no real size checking here, but the code below can be
353  * removed once we require GCC 13.
354  */
355 #define __enum_uint8_decl(name)	enum __attribute__((packed)) enum_ ## name ## _uint8
356 #define __enum_uint8(name)	enum __attribute__((packed)) enum_ ## name ## _uint8
357 #endif
358 
359 /*
360  * These declarations belong elsewhere, but are repeated here and in
361  * <stdio.h> to give broken programs a better chance of working with
362  * 64-bit off_t's.
363  */
364 #ifndef _KERNEL
365 __BEGIN_DECLS
366 #ifndef _FTRUNCATE_DECLARED
367 #define	_FTRUNCATE_DECLARED
368 int	 ftruncate(int, off_t);
369 #endif
370 #ifndef _LSEEK_DECLARED
371 #define	_LSEEK_DECLARED
372 off_t	 lseek(int, off_t, int);
373 #endif
374 #ifndef _MMAP_DECLARED
375 #define	_MMAP_DECLARED
376 void *	 mmap(void *, size_t, int, int, int, off_t);
377 #endif
378 #ifndef _TRUNCATE_DECLARED
379 #define	_TRUNCATE_DECLARED
380 int	 truncate(const char *, off_t);
381 #endif
382 __END_DECLS
383 #endif /* !_KERNEL */
384 
385 #endif /* __BSD_VISIBLE */
386 
387 #endif /* !_SYS_TYPES_H_ */
388