FreeBSD/Linux Kernel Cross Reference
sys/sys/systm.h
1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1982, 1988, 1991, 1993
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 * @(#)systm.h 8.7 (Berkeley) 3/29/95
37 * $FreeBSD: releng/12.0/sys/sys/systm.h 339735 2018-10-25 17:00:39Z brooks $
38 */
39
40 #ifndef _SYS_SYSTM_H_
41 #define _SYS_SYSTM_H_
42
43 #include <sys/cdefs.h>
44 #include <machine/atomic.h>
45 #include <machine/cpufunc.h>
46 #include <sys/callout.h>
47 #include <sys/queue.h>
48 #include <sys/stdint.h> /* for people using printf mainly */
49
50 __NULLABILITY_PRAGMA_PUSH
51
52 extern int cold; /* nonzero if we are doing a cold boot */
53 extern int suspend_blocked; /* block suspend due to pending shutdown */
54 extern int rebooting; /* kern_reboot() has been called. */
55 extern const char *panicstr; /* panic message */
56 extern char version[]; /* system version */
57 extern char compiler_version[]; /* compiler version */
58 extern char copyright[]; /* system copyright */
59 extern int kstack_pages; /* number of kernel stack pages */
60
61 extern u_long pagesizes[]; /* supported page sizes */
62 extern long physmem; /* physical memory */
63 extern long realmem; /* 'real' memory */
64
65 extern char *rootdevnames[2]; /* names of possible root devices */
66
67 extern int boothowto; /* reboot flags, from console subsystem */
68 extern int bootverbose; /* nonzero to print verbose messages */
69
70 extern int maxusers; /* system tune hint */
71 extern int ngroups_max; /* max # of supplemental groups */
72 extern int vm_guest; /* Running as virtual machine guest? */
73
74 /*
75 * Detected virtual machine guest types. The intention is to expand
76 * and/or add to the VM_GUEST_VM type if specific VM functionality is
77 * ever implemented (e.g. vendor-specific paravirtualization features).
78 * Keep in sync with vm_guest_sysctl_names[].
79 */
80 enum VM_GUEST { VM_GUEST_NO = 0, VM_GUEST_VM, VM_GUEST_XEN, VM_GUEST_HV,
81 VM_GUEST_VMWARE, VM_GUEST_KVM, VM_GUEST_BHYVE, VM_LAST };
82
83 /*
84 * These functions need to be declared before the KASSERT macro is invoked in
85 * !KASSERT_PANIC_OPTIONAL builds, so their declarations are sort of out of
86 * place compared to other function definitions in this header. On the other
87 * hand, this header is a bit disorganized anyway.
88 */
89 void panic(const char *, ...) __dead2 __printflike(1, 2);
90 void vpanic(const char *, __va_list) __dead2 __printflike(1, 0);
91
92 #if defined(WITNESS) || defined(INVARIANT_SUPPORT)
93 #ifdef KASSERT_PANIC_OPTIONAL
94 void kassert_panic(const char *fmt, ...) __printflike(1, 2);
95 #else
96 #define kassert_panic panic
97 #endif
98 #endif
99
100 #ifdef INVARIANTS /* The option is always available */
101 #define KASSERT(exp,msg) do { \
102 if (__predict_false(!(exp))) \
103 kassert_panic msg; \
104 } while (0)
105 #define VNASSERT(exp, vp, msg) do { \
106 if (__predict_false(!(exp))) { \
107 vn_printf(vp, "VNASSERT failed\n"); \
108 kassert_panic msg; \
109 } \
110 } while (0)
111 #else
112 #define KASSERT(exp,msg) do { \
113 } while (0)
114
115 #define VNASSERT(exp, vp, msg) do { \
116 } while (0)
117 #endif
118
119 #ifndef CTASSERT /* Allow lint to override */
120 #define CTASSERT(x) _Static_assert(x, "compile-time assertion failed")
121 #endif
122
123 #if defined(_KERNEL)
124 #include <sys/param.h> /* MAXCPU */
125 #include <sys/pcpu.h> /* curthread */
126 #include <sys/kpilite.h>
127 #endif
128
129 /*
130 * Assert that a pointer can be loaded from memory atomically.
131 *
132 * This assertion enforces stronger alignment than necessary. For example,
133 * on some architectures, atomicity for unaligned loads will depend on
134 * whether or not the load spans multiple cache lines.
135 */
136 #define ASSERT_ATOMIC_LOAD_PTR(var, msg) \
137 KASSERT(sizeof(var) == sizeof(void *) && \
138 ((uintptr_t)&(var) & (sizeof(void *) - 1)) == 0, msg)
139
140 /*
141 * Assert that a thread is in critical(9) section.
142 */
143 #define CRITICAL_ASSERT(td) \
144 KASSERT((td)->td_critnest >= 1, ("Not in critical section"));
145
146 /*
147 * If we have already panic'd and this is the thread that called
148 * panic(), then don't block on any mutexes but silently succeed.
149 * Otherwise, the kernel will deadlock since the scheduler isn't
150 * going to run the thread that holds any lock we need.
151 */
152 #define SCHEDULER_STOPPED_TD(td) ({ \
153 MPASS((td) == curthread); \
154 __predict_false((td)->td_stopsched); \
155 })
156 #define SCHEDULER_STOPPED() SCHEDULER_STOPPED_TD(curthread)
157
158 /*
159 * Align variables.
160 */
161 #define __read_mostly __section(".data.read_mostly")
162 #define __read_frequently __section(".data.read_frequently")
163 #define __exclusive_cache_line __aligned(CACHE_LINE_SIZE) \
164 __section(".data.exclusive_cache_line")
165 /*
166 * XXX the hints declarations are even more misplaced than most declarations
167 * in this file, since they are needed in one file (per arch) and only used
168 * in two files.
169 * XXX most of these variables should be const.
170 */
171 extern int osreldate;
172 extern bool dynamic_kenv;
173 extern struct mtx kenv_lock;
174 extern char *kern_envp;
175 extern char *md_envp;
176 extern char static_env[];
177 extern char static_hints[]; /* by config for now */
178
179 extern char **kenvp;
180
181 extern const void *zero_region; /* address space maps to a zeroed page */
182
183 extern int unmapped_buf_allowed;
184
185 #ifdef __LP64__
186 #define IOSIZE_MAX iosize_max()
187 #define DEVFS_IOSIZE_MAX devfs_iosize_max()
188 #else
189 #define IOSIZE_MAX SSIZE_MAX
190 #define DEVFS_IOSIZE_MAX SSIZE_MAX
191 #endif
192
193 /*
194 * General function declarations.
195 */
196
197 struct inpcb;
198 struct lock_object;
199 struct malloc_type;
200 struct mtx;
201 struct proc;
202 struct socket;
203 struct thread;
204 struct tty;
205 struct ucred;
206 struct uio;
207 struct _jmp_buf;
208 struct trapframe;
209 struct eventtimer;
210
211 int setjmp(struct _jmp_buf *) __returns_twice;
212 void longjmp(struct _jmp_buf *, int) __dead2;
213 int dumpstatus(vm_offset_t addr, off_t count);
214 int nullop(void);
215 int eopnotsupp(void);
216 int ureadc(int, struct uio *);
217 void hashdestroy(void *, struct malloc_type *, u_long);
218 void *hashinit(int count, struct malloc_type *type, u_long *hashmask);
219 void *hashinit_flags(int count, struct malloc_type *type,
220 u_long *hashmask, int flags);
221 #define HASH_NOWAIT 0x00000001
222 #define HASH_WAITOK 0x00000002
223
224 void *phashinit(int count, struct malloc_type *type, u_long *nentries);
225 void *phashinit_flags(int count, struct malloc_type *type, u_long *nentries,
226 int flags);
227 void g_waitidle(void);
228
229 void cpu_boot(int);
230 void cpu_flush_dcache(void *, size_t);
231 void cpu_rootconf(void);
232 void critical_enter_KBI(void);
233 void critical_exit_KBI(void);
234 void critical_exit_preempt(void);
235 void init_param1(void);
236 void init_param2(long physpages);
237 void init_static_kenv(char *, size_t);
238 void tablefull(const char *);
239
240 #if defined(KLD_MODULE) || defined(KTR_CRITICAL) || !defined(_KERNEL) || defined(GENOFFSET)
241 #define critical_enter() critical_enter_KBI()
242 #define critical_exit() critical_exit_KBI()
243 #else
244 static __inline void
245 critical_enter(void)
246 {
247 struct thread_lite *td;
248
249 td = (struct thread_lite *)curthread;
250 td->td_critnest++;
251 __compiler_membar();
252 }
253
254 static __inline void
255 critical_exit(void)
256 {
257 struct thread_lite *td;
258
259 td = (struct thread_lite *)curthread;
260 KASSERT(td->td_critnest != 0,
261 ("critical_exit: td_critnest == 0"));
262 __compiler_membar();
263 td->td_critnest--;
264 __compiler_membar();
265 if (__predict_false(td->td_owepreempt))
266 critical_exit_preempt();
267
268 }
269 #endif
270
271
272 #ifdef EARLY_PRINTF
273 typedef void early_putc_t(int ch);
274 extern early_putc_t *early_putc;
275 #endif
276 int kvprintf(char const *, void (*)(int, void*), void *, int,
277 __va_list) __printflike(1, 0);
278 void log(int, const char *, ...) __printflike(2, 3);
279 void log_console(struct uio *);
280 void vlog(int, const char *, __va_list) __printflike(2, 0);
281 int asprintf(char **ret, struct malloc_type *mtp, const char *format,
282 ...) __printflike(3, 4);
283 int printf(const char *, ...) __printflike(1, 2);
284 int snprintf(char *, size_t, const char *, ...) __printflike(3, 4);
285 int sprintf(char *buf, const char *, ...) __printflike(2, 3);
286 int uprintf(const char *, ...) __printflike(1, 2);
287 int vprintf(const char *, __va_list) __printflike(1, 0);
288 int vasprintf(char **ret, struct malloc_type *mtp, const char *format,
289 __va_list ap) __printflike(3, 0);
290 int vsnprintf(char *, size_t, const char *, __va_list) __printflike(3, 0);
291 int vsnrprintf(char *, size_t, int, const char *, __va_list) __printflike(4, 0);
292 int vsprintf(char *buf, const char *, __va_list) __printflike(2, 0);
293 int ttyprintf(struct tty *, const char *, ...) __printflike(2, 3);
294 int sscanf(const char *, char const * _Nonnull, ...) __scanflike(2, 3);
295 int vsscanf(const char * _Nonnull, char const * _Nonnull, __va_list) __scanflike(2, 0);
296 long strtol(const char *, char **, int);
297 u_long strtoul(const char *, char **, int);
298 quad_t strtoq(const char *, char **, int);
299 u_quad_t strtouq(const char *, char **, int);
300 void tprintf(struct proc *p, int pri, const char *, ...) __printflike(3, 4);
301 void vtprintf(struct proc *, int, const char *, __va_list) __printflike(3, 0);
302 void hexdump(const void *ptr, int length, const char *hdr, int flags);
303 #define HD_COLUMN_MASK 0xff
304 #define HD_DELIM_MASK 0xff00
305 #define HD_OMIT_COUNT (1 << 16)
306 #define HD_OMIT_HEX (1 << 17)
307 #define HD_OMIT_CHARS (1 << 18)
308
309 #define ovbcopy(f, t, l) bcopy((f), (t), (l))
310 void bcopy(const void * _Nonnull from, void * _Nonnull to, size_t len);
311 #define bcopy(from, to, len) __builtin_memmove((to), (from), (len))
312 void bzero(void * _Nonnull buf, size_t len);
313 #define bzero(buf, len) __builtin_memset((buf), 0, (len))
314 void explicit_bzero(void * _Nonnull, size_t);
315 int bcmp(const void *b1, const void *b2, size_t len);
316 #define bcmp(b1, b2, len) __builtin_memcmp((b1), (b2), (len))
317
318 void *memset(void * _Nonnull buf, int c, size_t len);
319 #define memset(buf, c, len) __builtin_memset((buf), (c), (len))
320 void *memcpy(void * _Nonnull to, const void * _Nonnull from, size_t len);
321 #define memcpy(to, from, len) __builtin_memcpy((to), (from), (len))
322 void *memmove(void * _Nonnull dest, const void * _Nonnull src, size_t n);
323 #define memmove(dest, src, n) __builtin_memmove((dest), (src), (n))
324 int memcmp(const void *b1, const void *b2, size_t len);
325 #define memcmp(b1, b2, len) __builtin_memcmp((b1), (b2), (len))
326
327 void *memset_early(void * _Nonnull buf, int c, size_t len);
328 #define bzero_early(buf, len) memset_early((buf), 0, (len))
329 void *memcpy_early(void * _Nonnull to, const void * _Nonnull from, size_t len);
330 void *memmove_early(void * _Nonnull dest, const void * _Nonnull src, size_t n);
331 #define bcopy_early(from, to, len) memmove_early((to), (from), (len))
332
333 int copystr(const void * _Nonnull __restrict kfaddr,
334 void * _Nonnull __restrict kdaddr, size_t len,
335 size_t * __restrict lencopied);
336 int copyinstr(const void * __restrict udaddr,
337 void * _Nonnull __restrict kaddr, size_t len,
338 size_t * __restrict lencopied);
339 int copyin(const void * __restrict udaddr,
340 void * _Nonnull __restrict kaddr, size_t len);
341 int copyin_nofault(const void * __restrict udaddr,
342 void * _Nonnull __restrict kaddr, size_t len);
343 int copyout(const void * _Nonnull __restrict kaddr,
344 void * __restrict udaddr, size_t len);
345 int copyout_nofault(const void * _Nonnull __restrict kaddr,
346 void * __restrict udaddr, size_t len);
347
348 int fubyte(volatile const void *base);
349 long fuword(volatile const void *base);
350 int fuword16(volatile const void *base);
351 int32_t fuword32(volatile const void *base);
352 int64_t fuword64(volatile const void *base);
353 int fueword(volatile const void *base, long *val);
354 int fueword32(volatile const void *base, int32_t *val);
355 int fueword64(volatile const void *base, int64_t *val);
356 int subyte(volatile void *base, int byte);
357 int suword(volatile void *base, long word);
358 int suword16(volatile void *base, int word);
359 int suword32(volatile void *base, int32_t word);
360 int suword64(volatile void *base, int64_t word);
361 uint32_t casuword32(volatile uint32_t *base, uint32_t oldval, uint32_t newval);
362 u_long casuword(volatile u_long *p, u_long oldval, u_long newval);
363 int casueword32(volatile uint32_t *base, uint32_t oldval, uint32_t *oldvalp,
364 uint32_t newval);
365 int casueword(volatile u_long *p, u_long oldval, u_long *oldvalp,
366 u_long newval);
367
368 void realitexpire(void *);
369
370 int sysbeep(int hertz, int period);
371
372 void hardclock(int cnt, int usermode);
373 void hardclock_sync(int cpu);
374 void softclock(void *);
375 void statclock(int cnt, int usermode);
376 void profclock(int cnt, int usermode, uintfptr_t pc);
377
378 int hardclockintr(void);
379
380 void startprofclock(struct proc *);
381 void stopprofclock(struct proc *);
382 void cpu_startprofclock(void);
383 void cpu_stopprofclock(void);
384 void suspendclock(void);
385 void resumeclock(void);
386 sbintime_t cpu_idleclock(void);
387 void cpu_activeclock(void);
388 void cpu_new_callout(int cpu, sbintime_t bt, sbintime_t bt_opt);
389 void cpu_et_frequency(struct eventtimer *et, uint64_t newfreq);
390 extern int cpu_disable_c2_sleep;
391 extern int cpu_disable_c3_sleep;
392
393 char *kern_getenv(const char *name);
394 void freeenv(char *env);
395 int getenv_int(const char *name, int *data);
396 int getenv_uint(const char *name, unsigned int *data);
397 int getenv_long(const char *name, long *data);
398 int getenv_ulong(const char *name, unsigned long *data);
399 int getenv_string(const char *name, char *data, int size);
400 int getenv_int64(const char *name, int64_t *data);
401 int getenv_uint64(const char *name, uint64_t *data);
402 int getenv_quad(const char *name, quad_t *data);
403 int kern_setenv(const char *name, const char *value);
404 int kern_unsetenv(const char *name);
405 int testenv(const char *name);
406
407 int getenv_array(const char *name, void *data, int size, int *psize,
408 int type_size, bool allow_signed);
409 #define GETENV_UNSIGNED false /* negative numbers not allowed */
410 #define GETENV_SIGNED true /* negative numbers allowed */
411
412 typedef uint64_t (cpu_tick_f)(void);
413 void set_cputicker(cpu_tick_f *func, uint64_t freq, unsigned var);
414 extern cpu_tick_f *cpu_ticks;
415 uint64_t cpu_tickrate(void);
416 uint64_t cputick2usec(uint64_t tick);
417
418 #ifdef APM_FIXUP_CALLTODO
419 struct timeval;
420 void adjust_timeout_calltodo(struct timeval *time_change);
421 #endif /* APM_FIXUP_CALLTODO */
422
423 #include <sys/libkern.h>
424
425 /* Initialize the world */
426 void consinit(void);
427 void cpu_initclocks(void);
428 void cpu_initclocks_bsp(void);
429 void cpu_initclocks_ap(void);
430 void usrinfoinit(void);
431
432 /* Finalize the world */
433 void kern_reboot(int) __dead2;
434 void shutdown_nice(int);
435
436 /* Timeouts */
437 typedef void timeout_t(void *); /* timeout function type */
438 #define CALLOUT_HANDLE_INITIALIZER(handle) \
439 { NULL }
440
441 void callout_handle_init(struct callout_handle *);
442 struct callout_handle timeout(timeout_t *, void *, int);
443 void untimeout(timeout_t *, void *, struct callout_handle);
444
445 /* Stubs for obsolete functions that used to be for interrupt management */
446 static __inline intrmask_t splbio(void) { return 0; }
447 static __inline intrmask_t splcam(void) { return 0; }
448 static __inline intrmask_t splclock(void) { return 0; }
449 static __inline intrmask_t splhigh(void) { return 0; }
450 static __inline intrmask_t splimp(void) { return 0; }
451 static __inline intrmask_t splnet(void) { return 0; }
452 static __inline intrmask_t spltty(void) { return 0; }
453 static __inline void splx(intrmask_t ipl __unused) { return; }
454
455 /*
456 * Common `proc' functions are declared here so that proc.h can be included
457 * less often.
458 */
459 int _sleep(void * _Nonnull chan, struct lock_object *lock, int pri,
460 const char *wmesg, sbintime_t sbt, sbintime_t pr, int flags);
461 #define msleep(chan, mtx, pri, wmesg, timo) \
462 _sleep((chan), &(mtx)->lock_object, (pri), (wmesg), \
463 tick_sbt * (timo), 0, C_HARDCLOCK)
464 #define msleep_sbt(chan, mtx, pri, wmesg, bt, pr, flags) \
465 _sleep((chan), &(mtx)->lock_object, (pri), (wmesg), (bt), (pr), \
466 (flags))
467 int msleep_spin_sbt(void * _Nonnull chan, struct mtx *mtx,
468 const char *wmesg, sbintime_t sbt, sbintime_t pr, int flags);
469 #define msleep_spin(chan, mtx, wmesg, timo) \
470 msleep_spin_sbt((chan), (mtx), (wmesg), tick_sbt * (timo), \
471 0, C_HARDCLOCK)
472 int pause_sbt(const char *wmesg, sbintime_t sbt, sbintime_t pr,
473 int flags);
474 #define pause(wmesg, timo) \
475 pause_sbt((wmesg), tick_sbt * (timo), 0, C_HARDCLOCK)
476 #define pause_sig(wmesg, timo) \
477 pause_sbt((wmesg), tick_sbt * (timo), 0, C_HARDCLOCK | C_CATCH)
478 #define tsleep(chan, pri, wmesg, timo) \
479 _sleep((chan), NULL, (pri), (wmesg), tick_sbt * (timo), \
480 0, C_HARDCLOCK)
481 #define tsleep_sbt(chan, pri, wmesg, bt, pr, flags) \
482 _sleep((chan), NULL, (pri), (wmesg), (bt), (pr), (flags))
483 void wakeup(void * chan);
484 void wakeup_one(void * chan);
485
486 /*
487 * Common `struct cdev *' stuff are declared here to avoid #include poisoning
488 */
489
490 struct cdev;
491 dev_t dev2udev(struct cdev *x);
492 const char *devtoname(struct cdev *cdev);
493
494 #ifdef __LP64__
495 size_t devfs_iosize_max(void);
496 size_t iosize_max(void);
497 #endif
498
499 int poll_no_poll(int events);
500
501 /* XXX: Should be void nanodelay(u_int nsec); */
502 void DELAY(int usec);
503
504 /* Root mount holdback API */
505 struct root_hold_token;
506
507 struct root_hold_token *root_mount_hold(const char *identifier);
508 void root_mount_rel(struct root_hold_token *h);
509 int root_mounted(void);
510
511
512 /*
513 * Unit number allocation API. (kern/subr_unit.c)
514 */
515 struct unrhdr;
516 struct unrhdr *new_unrhdr(int low, int high, struct mtx *mutex);
517 void init_unrhdr(struct unrhdr *uh, int low, int high, struct mtx *mutex);
518 void delete_unrhdr(struct unrhdr *uh);
519 void clear_unrhdr(struct unrhdr *uh);
520 void clean_unrhdr(struct unrhdr *uh);
521 void clean_unrhdrl(struct unrhdr *uh);
522 int alloc_unr(struct unrhdr *uh);
523 int alloc_unr_specific(struct unrhdr *uh, u_int item);
524 int alloc_unrl(struct unrhdr *uh);
525 void free_unr(struct unrhdr *uh, u_int item);
526
527 void intr_prof_stack_use(struct thread *td, struct trapframe *frame);
528
529 void counted_warning(unsigned *counter, const char *msg);
530
531 /*
532 * APIs to manage deprecation and obsolescence.
533 */
534 struct device;
535 void _gone_in(int major, const char *msg);
536 void _gone_in_dev(struct device *dev, int major, const char *msg);
537 #ifdef NO_OBSOLETE_CODE
538 #define __gone_ok(m, msg) \
539 _Static_assert(m < P_OSREL_MAJOR(__FreeBSD_version)), \
540 "Obsolete code" msg);
541 #else
542 #define __gone_ok(m, msg)
543 #endif
544 #define gone_in(major, msg) __gone_ok(major, msg) _gone_in(major, msg)
545 #define gone_in_dev(dev, major, msg) __gone_ok(major, msg) _gone_in_dev(dev, major, msg)
546 #define gone_by_fcp101_dev(dev) \
547 gone_in_dev((dev), 13, \
548 "see https://github.com/freebsd/fcp/blob/master/fcp-0101.md")
549
550 __NULLABILITY_PRAGMA_POP
551
552 #endif /* !_SYS_SYSTM_H_ */
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