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📄 _atomic64e.h(2.91 KB)
📄 _atomic_subword.h(7.27 KB)
📄 _bitset.h(2.3 KB)
📄 _blockcount.h(1.97 KB)
📄 _bus_dma.h(2.15 KB)
📄 _callout.h(2.68 KB)
📄 _cpuset.h(1.76 KB)
📄 _cscan_atomic.h(18.1 KB)
📄 _cscan_bus.h(10.22 KB)
📄 _domainset.h(2.04 KB)
📄 _eventhandler.h(2.81 KB)
📄 _ffcounter.h(1.84 KB)
📄 _iovec.h(1.93 KB)
📄 _lock.h(2.98 KB)
📄 _lockmgr.h(1.82 KB)
📄 _mutex.h(2.63 KB)
📄 _null.h(1.7 KB)
📄 _pctrie.h(1.65 KB)
📄 _pthreadtypes.h(3.51 KB)
📄 _rangeset.h(1.86 KB)
📄 _rmlock.h(2.59 KB)
📄 _rwlock.h(2.39 KB)
📄 _semaphore.h(2.05 KB)
📄 _seqc.h(160 B)
📄 _sigset.h(2.46 KB)
📄 _smr.h(1.94 KB)
📄 _sockaddr_storage.h(2.37 KB)
📄 _stack.h(1.53 KB)
📄 _stdarg.h(2.15 KB)
📄 _stdint.h(2.6 KB)
📄 _sx.h(1.73 KB)
📄 _task.h(2.62 KB)
📄 _termios.h(7.64 KB)
📄 _timespec.h(2 KB)
📄 _timeval.h(1.88 KB)
📄 _types.h(5.66 KB)
📄 _ucontext.h(2.08 KB)
📄 _uio.h(1.99 KB)
📄 _umtx.h(2.5 KB)
📄 _unrhdr.h(1.92 KB)
📄 _winsize.h(2.14 KB)
📄 aac_ioctl.h(7.56 KB)
📄 abi_compat.h(2.42 KB)
📄 acct.h(4.95 KB)
📄 acl.h(14.62 KB)
📄 agpio.h(5.78 KB)
📄 aio.h(7.69 KB)
📄 alq.h(4.5 KB)
📄 apm.h(88 B)
📄 arb.h(28.88 KB)
📄 assym.h(2.7 KB)
📄 ata.h(45.35 KB)
📄 atomic_common.h(3.26 KB)
📄 auxv.h(1.58 KB)
📄 backlight.h(2.02 KB)
📄 bio.h(6.77 KB)
📄 bitset.h(8.53 KB)
📄 bitstring.h(12.16 KB)
📄 blist.h(3.74 KB)
📄 blockcount.h(3.03 KB)
📄 boot.h(1.8 KB)
📄 buf.h(20.73 KB)
📄 buf_ring.h(10.6 KB)
📄 bufobj.h(5.03 KB)
📄 bus.h(38.2 KB)
📄 bus_dma.h(13.68 KB)
📄 bus_dma_internal.h(2.42 KB)
📄 busdma_bufalloc.h(4.7 KB)
📄 callout.h(6.62 KB)
📄 caprights.h(4.17 KB)
📄 capsicum.h(17.54 KB)
📄 cdefs.h(27.79 KB)
📄 cdio.h(7.09 KB)
📄 cdrio.h(4.88 KB)
📄 cfictl.h(2.21 KB)
📄 chio.h(9.53 KB)
📄 ck.h(251 B)
📄 clock.h(8.07 KB)
📄 cnv.h(4.25 KB)
📄 compressor.h(2.05 KB)
📄 condvar.h(3.42 KB)
📄 conf.h(12.4 KB)
📄 cons.h(5.22 KB)
📄 consio.h(14.01 KB)
📄 copyright.h(1.97 KB)
📄 counter.h(3.02 KB)
📄 coverage.h(2.36 KB)
📄 cpu.h(7.02 KB)
📄 cpuctl.h(2.29 KB)
📄 cpuset.h(5.93 KB)
📄 csan.h(1.71 KB)
📄 ctf.h(14.4 KB)
📄 ctf_api.h(9.43 KB)
📄 ctype.h(2.81 KB)
📄 devctl.h(1.76 KB)
📄 devicestat.h(6.97 KB)
📄 devmap.h(4.04 KB)
📄 dirent.h(4.78 KB)
📁 disk
📄 disk.h(6.31 KB)
📄 disk_zone.h(6.52 KB)
📄 disklabel.h(4.39 KB)
📄 diskmbr.h(1.84 KB)
📄 dkstat.h(2.05 KB)
📄 dnv.h(3.39 KB)
📄 domain.h(3.64 KB)
📄 domainset.h(5.05 KB)
📄 dtrace.h(104.98 KB)
📄 dtrace_bsd.h(6.93 KB)
📄 dvdio.h(3.43 KB)
📄 efi.h(6.21 KB)
📄 efiio.h(2.06 KB)
📄 elf.h(1.6 KB)
📄 elf32.h(7.46 KB)
📄 elf64.h(7.79 KB)
📄 elf_common.h(59.51 KB)
📄 elf_generic.h(2.83 KB)
📄 endian.h(4.98 KB)
📄 epoch.h(4.01 KB)
📄 errno.h(8.29 KB)
📄 eui64.h(2.05 KB)
📄 event.h(12.61 KB)
📄 eventfd.h(1.86 KB)
📄 eventhandler.h(11.8 KB)
📄 eventvar.h(2.46 KB)
📄 exec.h(4.56 KB)
📄 extattr.h(4.08 KB)
📄 fail.h(13.1 KB)
📄 fbio.h(19.95 KB)
📄 fcntl.h(12.02 KB)
📄 fdcio.h(7.6 KB)
📄 file.h(14.06 KB)
📄 filedesc.h(12.13 KB)
📄 filio.h(3.67 KB)
📄 firmware.h(3.11 KB)
📄 fnv_hash.h(1.41 KB)
📄 font.h(3.85 KB)
📄 gmon.h(7.16 KB)
📄 gpio.h(9.85 KB)
📄 gpt.h(1.51 KB)
📄 gsb_crc32.h(998 B)
📄 gtaskqueue.h(4.21 KB)
📄 hash.h(3.55 KB)
📄 hhook.h(5.86 KB)
📄 iconv.h(8.22 KB)
📄 imgact.h(5.22 KB)
📄 imgact_aout.h(5.65 KB)
📄 imgact_binmisc.h(6.95 KB)
📄 imgact_elf.h(4.13 KB)
📄 interrupt.h(8.07 KB)
📄 intr.h(5.36 KB)
📄 ioccom.h(3.82 KB)
📄 ioctl.h(2.24 KB)
📄 ioctl_compat.h(6.42 KB)
📄 iov.h(11.67 KB)
📄 iov_schema.h(2.33 KB)
📄 ipc.h(4.93 KB)
📄 ipmi.h(5.4 KB)
📄 jail.h(14.98 KB)
📄 joystick.h(2.12 KB)
📄 kbio.h(7.81 KB)
📄 kcov.h(2.36 KB)
📄 kdb.h(5.04 KB)
📄 kenv.h(2.02 KB)
📄 kern_prefetch.h(1.67 KB)
📄 kernel.h(16.18 KB)
📄 kerneldump.h(4.85 KB)
📄 khelp.h(3.08 KB)
📄 kobj.h(6.92 KB)
📄 kpilite.h(2.01 KB)
📄 ksem.h(2.34 KB)
📄 kthread.h(3.04 KB)
📄 ktls.h(6.52 KB)
📄 ktr.h(10.92 KB)
📄 ktr_class.h(3.8 KB)
📄 ktrace.h(8.13 KB)
📄 libkern.h(7.74 KB)
📄 limits.h(3.69 KB)
📄 link_aout.h(10.2 KB)
📄 link_elf.h(4.06 KB)
📄 linker.h(11.88 KB)
📄 linker_set.h(3.85 KB)
📄 lock.h(12.24 KB)
📄 lock_profile.h(2.6 KB)
📄 lockf.h(5.55 KB)
📄 lockmgr.h(7 KB)
📄 lockstat.h(5.13 KB)
📄 loginclass.h(2.08 KB)
📄 mac.h(3.96 KB)
📄 malloc.h(11.76 KB)
📄 mbuf.h(50.74 KB)
📄 mchain.h(4.21 KB)
📄 md4.h(1.63 KB)
📄 md5.h(1.81 KB)
📄 mdioctl.h(3.73 KB)
📄 memdesc.h(3.79 KB)
📄 memrange.h(2.36 KB)
📄 mman.h(10.41 KB)
📄 module.h(8.77 KB)
📄 module_khelp.h(3.45 KB)
📄 mount.h(42.05 KB)
📄 mouse.h(12.69 KB)
📄 mpt_ioctl.h(4.27 KB)
📄 mqueue.h(1.86 KB)
📄 msg.h(4.78 KB)
📄 msgbuf.h(3.49 KB)
📄 mtio.h(11.94 KB)
📄 mutex.h(19.18 KB)
📄 namei.h(11.27 KB)
📄 nlist_aout.h(4.23 KB)
📄 nv.h(10.62 KB)
📄 nvpair.h(14.77 KB)
📄 osd.h(4.02 KB)
📄 param.h(12.23 KB)
📄 pciio.h(5.67 KB)
📄 pcpu.h(9.79 KB)
📄 pctrie.h(5.19 KB)
📄 physmem.h(2.92 KB)
📄 pidctrl.h(5.44 KB)
📄 pipe.h(4.63 KB)
📄 pmc.h(37.29 KB)
📄 pmckern.h(8.01 KB)
📄 pmclog.h(9.23 KB)
📄 poll.h(4.03 KB)
📄 posix4.h(3.71 KB)
📄 power.h(2.34 KB)
📄 priority.h(4.39 KB)
📄 priv.h(19.73 KB)
📄 prng.h(354 B)
📄 proc.h(50.73 KB)
📄 procctl.h(4.89 KB)
📄 procdesc.h(4.46 KB)
📄 procfs.h(4.2 KB)
📄 protosw.h(14.56 KB)
📄 ptio.h(1.57 KB)
📄 ptrace.h(8.61 KB)
📄 qmath.h(22.07 KB)
📄 queue.h(28.61 KB)
📄 racct.h(7.48 KB)
📄 random.h(5.41 KB)
📄 rangelock.h(3.86 KB)
📄 rangeset.h(2.96 KB)
📄 rctl.h(5.91 KB)
📄 reboot.h(3.41 KB)
📄 refcount.h(5.72 KB)
📄 regression.h(1.62 KB)
📄 resource.h(5.32 KB)
📄 resourcevar.h(6.33 KB)
📄 rman.h(6.41 KB)
📄 rmlock.h(5.56 KB)
📄 rtprio.h(3.08 KB)
📄 runq.h(2.54 KB)
📄 rwlock.h(10.61 KB)
📄 sbuf.h(4.68 KB)
📄 sched.h(9.06 KB)
📄 sdt.h(17.89 KB)
📄 select.h(3.5 KB)
📄 selinfo.h(2.39 KB)
📄 sem.h(4.31 KB)
📄 sema.h(2.61 KB)
📄 seqc.h(3.26 KB)
📄 serial.h(3.49 KB)
📄 sf_buf.h(5.87 KB)
📄 sglist.h(3.89 KB)
📄 shm.h(5.69 KB)
📄 sigio.h(2.83 KB)
📄 signal.h(15.83 KB)
📄 signalvar.h(12.95 KB)
📄 sleepqueue.h(5.61 KB)
📄 slicer.h(2.19 KB)
📄 smp.h(8.88 KB)
📄 smr.h(7.64 KB)
📄 smr_types.h(4.87 KB)
📄 snoop.h(1014 B)
📄 sockbuf.h(9.9 KB)
📄 socket.h(23.43 KB)
📄 socketvar.h(18.75 KB)
📄 sockio.h(7.97 KB)
📄 sockopt.h(2.98 KB)
📄 soundcard.h(69.38 KB)
📄 specialfd.h(1.56 KB)
📄 spigenio.h(2.28 KB)
📄 stack.h(2.65 KB)
📄 stat.h(13.44 KB)
📄 stats.h(34.73 KB)
📄 statvfs.h(3.08 KB)
📄 stdatomic.h(13.94 KB)
📄 stddef.h(1.7 KB)
📄 stdint.h(2.63 KB)
📄 sx.h(11.04 KB)
📄 syscall.h(13.99 KB)
📄 syscallsubr.h(16.94 KB)
📄 sysctl.h(47.96 KB)
📄 sysent.h(10.82 KB)
📄 syslimits.h(3.14 KB)
📄 syslog.h(7.25 KB)
📄 sysproto.h(153.38 KB)
📄 systm.h(21.97 KB)
📄 taskqueue.h(7.65 KB)
📄 terminal.h(8.25 KB)
📄 termios.h(151 B)
📄 thr.h(2.87 KB)
📄 tiio.h(12.62 KB)
📄 tim_filter.h(4.61 KB)
📄 time.h(16.87 KB)
📄 timeb.h(2.59 KB)
📄 timeet.h(3.65 KB)
📄 timeffc.h(11.94 KB)
📄 timepps.h(6.48 KB)
📄 timers.h(3.56 KB)
📄 times.h(2.46 KB)
📄 timespec.h(2.4 KB)
📄 timetc.h(3.16 KB)
📄 timex.h(6.61 KB)
📄 tree.h(27.93 KB)
📄 tslog.h(2.3 KB)
📄 tty.h(8.98 KB)
📄 ttycom.h(6.48 KB)
📄 ttydefaults.h(3.92 KB)
📄 ttydevsw.h(5.28 KB)
📄 ttydisc.h(2.93 KB)
📄 ttyhook.h(3.98 KB)
📄 ttyqueue.h(5.26 KB)
📄 turnstile.h(4.83 KB)
📄 types.h(11.64 KB)
📄 ucontext.h(2.91 KB)
📄 ucred.h(5.4 KB)
📄 uio.h(4.15 KB)
📄 umtx.h(5.94 KB)
📄 un.h(2.96 KB)
📄 unistd.h(7.34 KB)
📄 unpcb.h(6.77 KB)
📄 user.h(21.58 KB)
📄 utsname.h(2.47 KB)
📄 uuid.h(3.17 KB)
📄 vdso.h(4.26 KB)
📄 vmem.h(4.91 KB)
📄 vmmeter.h(7.72 KB)
📄 vnode.h(40.87 KB)
📄 vtoc.h(89 B)
📄 wait.h(6.11 KB)
📄 watchdog.h(4.22 KB)

Editing: systm.h

/*-
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright (c) 1982, 1988, 1991, 1993
 *	The Regents of the University of California.  All rights reserved.
 * (c) UNIX System Laboratories, Inc.
 * All or some portions of this file are derived from material licensed
 * to the University of California by American Telephone and Telegraph
 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
 * the permission of UNIX System Laboratories, Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)systm.h	8.7 (Berkeley) 3/29/95
 * $FreeBSD$
 */

#ifndef _SYS_SYSTM_H_
#define	_SYS_SYSTM_H_

#include <sys/cdefs.h>
#include <machine/atomic.h>
#include <machine/cpufunc.h>
#include <sys/callout.h>
#include <sys/queue.h>
#include <sys/stdint.h>		/* for people using printf mainly */

__NULLABILITY_PRAGMA_PUSH

#ifdef _KERNEL
extern int cold;		/* nonzero if we are doing a cold boot */
extern int suspend_blocked;	/* block suspend due to pending shutdown */
extern int rebooting;		/* kern_reboot() has been called. */
extern const char *panicstr;	/* panic message */
extern bool panicked;
#define	KERNEL_PANICKED()	__predict_false(panicked)
extern char version[];		/* system version */
extern char compiler_version[];	/* compiler version */
extern char copyright[];	/* system copyright */
extern int kstack_pages;	/* number of kernel stack pages */

extern u_long pagesizes[];	/* supported page sizes */
extern long physmem;		/* physical memory */
extern long realmem;		/* 'real' memory */

extern char *rootdevnames[2];	/* names of possible root devices */

extern int boothowto;		/* reboot flags, from console subsystem */
extern int bootverbose;		/* nonzero to print verbose messages */

extern int maxusers;		/* system tune hint */
extern int ngroups_max;		/* max # of supplemental groups */
extern int vm_guest;		/* Running as virtual machine guest? */

extern u_long maxphys;		/* max raw I/O transfer size */

/*
 * Detected virtual machine guest types. The intention is to expand
 * and/or add to the VM_GUEST_VM type if specific VM functionality is
 * ever implemented (e.g. vendor-specific paravirtualization features).
 * Keep in sync with vm_guest_sysctl_names[].
 */
enum VM_GUEST { VM_GUEST_NO = 0, VM_GUEST_VM, VM_GUEST_XEN, VM_GUEST_HV,
		VM_GUEST_VMWARE, VM_GUEST_KVM, VM_GUEST_BHYVE, VM_GUEST_VBOX,
		VM_GUEST_PARALLELS, VM_LAST };

#ifdef	INVARIANTS		/* The option is always available */
#define	VNASSERT(exp, vp, msg) do {					\
	if (__predict_false(!(exp))) {					\
		vn_printf(vp, "VNASSERT failed: %s not true at %s:%d (%s)\n",\
		   #exp, __FILE__, __LINE__, __func__);	 		\
		kassert_panic msg;					\
	}								\
} while (0)
#define	VNPASS(exp, vp)	do {						\
	const char *_exp = #exp;					\
	VNASSERT(exp, vp, ("condition %s not met at %s:%d (%s)",	\
	    _exp, __FILE__, __LINE__, __func__));			\
} while (0)
#define	__assert_unreachable() \
	panic("executing segment marked as unreachable at %s:%d (%s)\n", \
	    __FILE__, __LINE__, __func__)
#else
#define	VNASSERT(exp, vp, msg) do { \
} while (0)
#define	VNPASS(exp, vp) do { \
} while (0)
#define	__assert_unreachable()	__unreachable()
#endif

#ifndef CTASSERT	/* Allow lint to override */
#define	CTASSERT(x)	_Static_assert(x, "compile-time assertion failed")
#endif
#endif /* KERNEL */

/*
 * These functions need to be declared before the KASSERT macro is invoked in
 * !KASSERT_PANIC_OPTIONAL builds, so their declarations are sort of out of
 * place compared to other function definitions in this header.  On the other
 * hand, this header is a bit disorganized anyway.
 */
void	panic(const char *, ...) __dead2 __printflike(1, 2);
void	vpanic(const char *, __va_list) __dead2 __printflike(1, 0);

#if defined(_STANDALONE)
struct ucred;
/*
 * Until we have more experience with KASSERTS that are called
 * from the boot loader, they are off. The bootloader does this
 * a little differently than the kernel (we just call printf atm).
 * we avoid most of the common functions in the boot loader, so
 * declare printf() here too.
 */
int	printf(const char *, ...) __printflike(1, 2);
#  define kassert_panic printf
#else /* !_STANDALONE */
#  if defined(WITNESS) || defined(INVARIANT_SUPPORT)
#    ifdef KASSERT_PANIC_OPTIONAL
void	kassert_panic(const char *fmt, ...)  __printflike(1, 2);
#    else
#      define kassert_panic	panic
#    endif /* KASSERT_PANIC_OPTIONAL */
#  endif /* defined(WITNESS) || defined(INVARIANT_SUPPORT) */
#endif /* _STANDALONE */

#if defined(INVARIANTS) || defined(_STANDALONE)
#define	KASSERT(exp,msg) do {						\
	if (__predict_false(!(exp)))					\
		kassert_panic msg;					\
} while (0)
#else /* !INVARIANTS && !_STANDALONE */
#define	KASSERT(exp,msg) do { \
} while (0)
#endif /* INVARIANTS || _STANDALONE */

/*
 * Helpful macros for quickly coming up with assertions with informative
 * panic messages.
 */
#define MPASS(ex)		MPASS4(ex, #ex, __FILE__, __LINE__)
#define MPASS2(ex, what)	MPASS4(ex, what, __FILE__, __LINE__)
#define MPASS3(ex, file, line)	MPASS4(ex, #ex, file, line)
#define MPASS4(ex, what, file, line)					\
	KASSERT((ex), ("Assertion %s failed at %s:%d", what, file, line))

/*
 * Align variables.
 */
#define	__read_mostly		__section(".data.read_mostly")
#define	__read_frequently	__section(".data.read_frequently")
#define	__exclusive_cache_line	__aligned(CACHE_LINE_SIZE) \
				    __section(".data.exclusive_cache_line")
#ifdef _KERNEL
#include <sys/param.h>		/* MAXCPU */
#include <sys/pcpu.h>		/* curthread */
#include <sys/kpilite.h>

/*
 * Assert that a pointer can be loaded from memory atomically.
 *
 * This assertion enforces stronger alignment than necessary.  For example,
 * on some architectures, atomicity for unaligned loads will depend on
 * whether or not the load spans multiple cache lines.
 */
#define	ASSERT_ATOMIC_LOAD_PTR(var, msg)				\
	KASSERT(sizeof(var) == sizeof(void *) &&			\
	    ((uintptr_t)&(var) & (sizeof(void *) - 1)) == 0, msg)

/*
 * Assert that a thread is in critical(9) section.
 */
#define	CRITICAL_ASSERT(td)						\
	KASSERT((td)->td_critnest >= 1, ("Not in critical section"));

/*
 * If we have already panic'd and this is the thread that called
 * panic(), then don't block on any mutexes but silently succeed.
 * Otherwise, the kernel will deadlock since the scheduler isn't
 * going to run the thread that holds any lock we need.
 */
#define	SCHEDULER_STOPPED_TD(td)  ({					\
	MPASS((td) == curthread);					\
	__predict_false((td)->td_stopsched);				\
})
#define	SCHEDULER_STOPPED() SCHEDULER_STOPPED_TD(curthread)

extern int osreldate;

extern const void *zero_region;	/* address space maps to a zeroed page	*/

extern int unmapped_buf_allowed;

#ifdef __LP64__
#define	IOSIZE_MAX		iosize_max()
#define	DEVFS_IOSIZE_MAX	devfs_iosize_max()
#else
#define	IOSIZE_MAX		SSIZE_MAX
#define	DEVFS_IOSIZE_MAX	SSIZE_MAX
#endif

/*
 * General function declarations.
 */

struct inpcb;
struct lock_object;
struct malloc_type;
struct mtx;
struct proc;
struct socket;
struct thread;
struct tty;
struct ucred;
struct uio;
struct _jmp_buf;
struct trapframe;
struct eventtimer;

int	setjmp(struct _jmp_buf *) __returns_twice;
void	longjmp(struct _jmp_buf *, int) __dead2;
int	dumpstatus(vm_offset_t addr, off_t count);
int	nullop(void);
int	eopnotsupp(void);
int	ureadc(int, struct uio *);
void	hashdestroy(void *, struct malloc_type *, u_long);
void	*hashinit(int count, struct malloc_type *type, u_long *hashmask);
void	*hashinit_flags(int count, struct malloc_type *type,
    u_long *hashmask, int flags);
#define	HASH_NOWAIT	0x00000001
#define	HASH_WAITOK	0x00000002

void	*phashinit(int count, struct malloc_type *type, u_long *nentries);
void	*phashinit_flags(int count, struct malloc_type *type, u_long *nentries,
    int flags);
void	g_waitidle(void);

void	cpu_flush_dcache(void *, size_t);
void	cpu_rootconf(void);
void	critical_enter_KBI(void);
void	critical_exit_KBI(void);
void	critical_exit_preempt(void);
void	init_param1(void);
void	init_param2(long physpages);
void	init_static_kenv(char *, size_t);
void	tablefull(const char *);

/*
 * Allocate per-thread "current" state in the linuxkpi
 */
extern int (*lkpi_alloc_current)(struct thread *, int);
int linux_alloc_current_noop(struct thread *, int);

#if defined(KLD_MODULE) || defined(KTR_CRITICAL) || !defined(_KERNEL) || defined(GENOFFSET)
#define critical_enter() critical_enter_KBI()
#define critical_exit() critical_exit_KBI()
#else
static __inline void
critical_enter(void)
{
	struct thread_lite *td;

td = (struct thread_lite *)curthread;
	td->td_critnest++;
	atomic_interrupt_fence();
}

static __inline void
critical_exit(void)
{
	struct thread_lite *td;

td = (struct thread_lite *)curthread;
	KASSERT(td->td_critnest != 0,
	    ("critical_exit: td_critnest == 0"));
	atomic_interrupt_fence();
	td->td_critnest--;
	atomic_interrupt_fence();
	if (__predict_false(td->td_owepreempt))
		critical_exit_preempt();

}
#endif

#ifdef  EARLY_PRINTF
typedef void early_putc_t(int ch);
extern early_putc_t *early_putc;
#endif
int	kvprintf(char const *, void (*)(int, void*), void *, int,
	    __va_list) __printflike(1, 0);
void	log(int, const char *, ...) __printflike(2, 3);
void	log_console(struct uio *);
void	vlog(int, const char *, __va_list) __printflike(2, 0);
int	asprintf(char **ret, struct malloc_type *mtp, const char *format, 
	    ...) __printflike(3, 4);
int	printf(const char *, ...) __printflike(1, 2);
int	snprintf(char *, size_t, const char *, ...) __printflike(3, 4);
int	sprintf(char *buf, const char *, ...) __printflike(2, 3);
int	uprintf(const char *, ...) __printflike(1, 2);
int	vprintf(const char *, __va_list) __printflike(1, 0);
int	vasprintf(char **ret, struct malloc_type *mtp, const char *format,
	    __va_list ap) __printflike(3, 0);
int	vsnprintf(char *, size_t, const char *, __va_list) __printflike(3, 0);
int	vsnrprintf(char *, size_t, int, const char *, __va_list) __printflike(4, 0);
int	vsprintf(char *buf, const char *, __va_list) __printflike(2, 0);
int	sscanf(const char *, char const * _Nonnull, ...) __scanflike(2, 3);
int	vsscanf(const char * _Nonnull, char const * _Nonnull, __va_list)  __scanflike(2, 0);
long	strtol(const char *, char **, int);
u_long	strtoul(const char *, char **, int);
quad_t	strtoq(const char *, char **, int);
u_quad_t strtouq(const char *, char **, int);
void	tprintf(struct proc *p, int pri, const char *, ...) __printflike(3, 4);
void	vtprintf(struct proc *, int, const char *, __va_list) __printflike(3, 0);
void	hexdump(const void *ptr, int length, const char *hdr, int flags);
#define	HD_COLUMN_MASK	0xff
#define	HD_DELIM_MASK	0xff00
#define	HD_OMIT_COUNT	(1 << 16)
#define	HD_OMIT_HEX	(1 << 17)
#define	HD_OMIT_CHARS	(1 << 18)

#define ovbcopy(f, t, l) bcopy((f), (t), (l))
void	bcopy(const void * _Nonnull from, void * _Nonnull to, size_t len);
void	bzero(void * _Nonnull buf, size_t len);
void	explicit_bzero(void * _Nonnull, size_t);
int	bcmp(const void *b1, const void *b2, size_t len);

void	*memset(void * _Nonnull buf, int c, size_t len);
void	*memcpy(void * _Nonnull to, const void * _Nonnull from, size_t len);
void	*memmove(void * _Nonnull dest, const void * _Nonnull src, size_t n);
int	memcmp(const void *b1, const void *b2, size_t len);

#ifdef KCSAN
void	*kcsan_memset(void *, int, size_t);
void	*kcsan_memcpy(void *, const void *, size_t);
void	*kcsan_memmove(void *, const void *, size_t);
int	kcsan_memcmp(const void *, const void *, size_t);
#define bcopy(from, to, len) kcsan_memmove((to), (from), (len))
#define bzero(buf, len) kcsan_memset((buf), 0, (len))
#define bcmp(b1, b2, len) kcsan_memcmp((b1), (b2), (len))
#define memset(buf, c, len) kcsan_memset((buf), (c), (len))
#define memcpy(to, from, len) kcsan_memcpy((to), (from), (len))
#define memmove(dest, src, n) kcsan_memmove((dest), (src), (n))
#define memcmp(b1, b2, len) kcsan_memcmp((b1), (b2), (len))
#else
#define bcopy(from, to, len) __builtin_memmove((to), (from), (len))
#define bzero(buf, len) __builtin_memset((buf), 0, (len))
#define bcmp(b1, b2, len) __builtin_memcmp((b1), (b2), (len))
#define memset(buf, c, len) __builtin_memset((buf), (c), (len))
#define memcpy(to, from, len) __builtin_memcpy((to), (from), (len))
#define memmove(dest, src, n) __builtin_memmove((dest), (src), (n))
#define memcmp(b1, b2, len) __builtin_memcmp((b1), (b2), (len))
#endif

void	*memset_early(void * _Nonnull buf, int c, size_t len);
#define bzero_early(buf, len) memset_early((buf), 0, (len))
void	*memcpy_early(void * _Nonnull to, const void * _Nonnull from, size_t len);
void	*memmove_early(void * _Nonnull dest, const void * _Nonnull src, size_t n);
#define bcopy_early(from, to, len) memmove_early((to), (from), (len))

#define	copystr(src, dst, len, outlen)	({			\
	size_t __r, __len, *__outlen;				\
								\
	__len = (len);						\
	__outlen = (outlen);					\
	__r = strlcpy((dst), (src), __len);			\
	if (__outlen != NULL)					\
		*__outlen = ((__r >= __len) ? __len : __r + 1);	\
	((__r >= __len) ? ENAMETOOLONG : 0);			\
})

int	copyinstr(const void * __restrict udaddr,
	    void * _Nonnull __restrict kaddr, size_t len,
	    size_t * __restrict lencopied);
int	copyin(const void * __restrict udaddr,
	    void * _Nonnull __restrict kaddr, size_t len);
int	copyin_nofault(const void * __restrict udaddr,
	    void * _Nonnull __restrict kaddr, size_t len);
int	copyout(const void * _Nonnull __restrict kaddr,
	    void * __restrict udaddr, size_t len);
int	copyout_nofault(const void * _Nonnull __restrict kaddr,
	    void * __restrict udaddr, size_t len);

#ifdef KCSAN
int	kcsan_copyin(const void *, void *, size_t);
int	kcsan_copyinstr(const void *, void *, size_t, size_t *);
int	kcsan_copyout(const void *, void *, size_t);
#define	copyin(u, k, l) kcsan_copyin((u), (k), (l))
#define	copyinstr(u, k, l, lc) kcsan_copyinstr((u), (k), (l), (lc))
#define	copyout(k, u, l) kcsan_copyout((k), (u), (l))
#endif

int	fubyte(volatile const void *base);
long	fuword(volatile const void *base);
int	fuword16(volatile const void *base);
int32_t	fuword32(volatile const void *base);
int64_t	fuword64(volatile const void *base);
int	fueword(volatile const void *base, long *val);
int	fueword32(volatile const void *base, int32_t *val);
int	fueword64(volatile const void *base, int64_t *val);
int	subyte(volatile void *base, int byte);
int	suword(volatile void *base, long word);
int	suword16(volatile void *base, int word);
int	suword32(volatile void *base, int32_t word);
int	suword64(volatile void *base, int64_t word);
uint32_t casuword32(volatile uint32_t *base, uint32_t oldval, uint32_t newval);
u_long	casuword(volatile u_long *p, u_long oldval, u_long newval);
int	casueword32(volatile uint32_t *base, uint32_t oldval, uint32_t *oldvalp,
	    uint32_t newval);
int	casueword(volatile u_long *p, u_long oldval, u_long *oldvalp,
	    u_long newval);

void	realitexpire(void *);

int	sysbeep(int hertz, int period);

void	hardclock(int cnt, int usermode);
void	hardclock_sync(int cpu);
void	softclock(void *);
void	statclock(int cnt, int usermode);
void	profclock(int cnt, int usermode, uintfptr_t pc);

int	hardclockintr(void);

void	startprofclock(struct proc *);
void	stopprofclock(struct proc *);
void	cpu_startprofclock(void);
void	cpu_stopprofclock(void);
void	suspendclock(void);
void	resumeclock(void);
sbintime_t 	cpu_idleclock(void);
void	cpu_activeclock(void);
void	cpu_new_callout(int cpu, sbintime_t bt, sbintime_t bt_opt);
void	cpu_et_frequency(struct eventtimer *et, uint64_t newfreq);
extern int	cpu_disable_c2_sleep;
extern int	cpu_disable_c3_sleep;

char	*kern_getenv(const char *name);
void	freeenv(char *env);
int	getenv_int(const char *name, int *data);
int	getenv_uint(const char *name, unsigned int *data);
int	getenv_long(const char *name, long *data);
int	getenv_ulong(const char *name, unsigned long *data);
int	getenv_string(const char *name, char *data, int size);
int	getenv_int64(const char *name, int64_t *data);
int	getenv_uint64(const char *name, uint64_t *data);
int	getenv_quad(const char *name, quad_t *data);
int	getenv_bool(const char *name, bool *data);
bool	getenv_is_true(const char *name);
bool	getenv_is_false(const char *name);
int	kern_setenv(const char *name, const char *value);
int	kern_unsetenv(const char *name);
int	testenv(const char *name);

int	getenv_array(const char *name, void *data, int size, int *psize,
    int type_size, bool allow_signed);
#define	GETENV_UNSIGNED	false	/* negative numbers not allowed */
#define	GETENV_SIGNED	true	/* negative numbers allowed */

typedef uint64_t (cpu_tick_f)(void);
void set_cputicker(cpu_tick_f *func, uint64_t freq, unsigned var);
extern cpu_tick_f *cpu_ticks;
uint64_t cpu_tickrate(void);
uint64_t cputick2usec(uint64_t tick);

#include <sys/libkern.h>

/* Initialize the world */
void	consinit(void);
void	cpu_initclocks(void);
void	cpu_initclocks_bsp(void);
void	cpu_initclocks_ap(void);
void	usrinfoinit(void);

/* Finalize the world */
void	kern_reboot(int) __dead2;
void	shutdown_nice(int);

/* Stubs for obsolete functions that used to be for interrupt management */
static __inline intrmask_t	splhigh(void)		{ return 0; }
static __inline intrmask_t	splimp(void)		{ return 0; }
static __inline intrmask_t	splnet(void)		{ return 0; }
static __inline intrmask_t	spltty(void)		{ return 0; }
static __inline void		splx(intrmask_t ipl __unused)	{ return; }

/*
 * Common `proc' functions are declared here so that proc.h can be included
 * less often.
 */
int	_sleep(const void * _Nonnull chan, struct lock_object *lock, int pri,
	   const char *wmesg, sbintime_t sbt, sbintime_t pr, int flags);
#define	msleep(chan, mtx, pri, wmesg, timo)				\
	_sleep((chan), &(mtx)->lock_object, (pri), (wmesg),		\
	    tick_sbt * (timo), 0, C_HARDCLOCK)
#define	msleep_sbt(chan, mtx, pri, wmesg, bt, pr, flags)		\
	_sleep((chan), &(mtx)->lock_object, (pri), (wmesg), (bt), (pr),	\
	    (flags))
int	msleep_spin_sbt(const void * _Nonnull chan, struct mtx *mtx,
	    const char *wmesg, sbintime_t sbt, sbintime_t pr, int flags);
#define	msleep_spin(chan, mtx, wmesg, timo)				\
	msleep_spin_sbt((chan), (mtx), (wmesg), tick_sbt * (timo),	\
	    0, C_HARDCLOCK)
int	pause_sbt(const char *wmesg, sbintime_t sbt, sbintime_t pr,
	    int flags);
#define	pause(wmesg, timo)						\
	pause_sbt((wmesg), tick_sbt * (timo), 0, C_HARDCLOCK)
#define	pause_sig(wmesg, timo)						\
	pause_sbt((wmesg), tick_sbt * (timo), 0, C_HARDCLOCK | C_CATCH)
#define	tsleep(chan, pri, wmesg, timo)					\
	_sleep((chan), NULL, (pri), (wmesg), tick_sbt * (timo),		\
	    0, C_HARDCLOCK)
#define	tsleep_sbt(chan, pri, wmesg, bt, pr, flags)			\
	_sleep((chan), NULL, (pri), (wmesg), (bt), (pr), (flags))
void	wakeup(const void *chan);
void	wakeup_one(const void *chan);
void	wakeup_any(const void *chan);

/*
 * Common `struct cdev *' stuff are declared here to avoid #include poisoning
 */

struct cdev;
dev_t dev2udev(struct cdev *x);
const char *devtoname(struct cdev *cdev);

#ifdef __LP64__
size_t	devfs_iosize_max(void);
size_t	iosize_max(void);
#endif

int poll_no_poll(int events);

/* XXX: Should be void nanodelay(u_int nsec); */
void	DELAY(int usec);

/* Root mount holdback API */
struct root_hold_token {
	int				flags;
	const char			*who;
	TAILQ_ENTRY(root_hold_token)	list;
};

struct root_hold_token *root_mount_hold(const char *identifier);
void root_mount_hold_token(const char *identifier, struct root_hold_token *h);
void root_mount_rel(struct root_hold_token *h);
int root_mounted(void);

/*
 * Unit number allocation API. (kern/subr_unit.c)
 */
struct unrhdr;
struct unrhdr *new_unrhdr(int low, int high, struct mtx *mutex);
void init_unrhdr(struct unrhdr *uh, int low, int high, struct mtx *mutex);
void delete_unrhdr(struct unrhdr *uh);
void clear_unrhdr(struct unrhdr *uh);
void clean_unrhdr(struct unrhdr *uh);
void clean_unrhdrl(struct unrhdr *uh);
int alloc_unr(struct unrhdr *uh);
int alloc_unr_specific(struct unrhdr *uh, u_int item);
int alloc_unrl(struct unrhdr *uh);
void free_unr(struct unrhdr *uh, u_int item);

#ifndef __LP64__
#define UNR64_LOCKED
#endif

struct unrhdr64 {
        uint64_t	counter;
};

static __inline void
new_unrhdr64(struct unrhdr64 *unr64, uint64_t low)
{

unr64->counter = low;
}

#ifdef UNR64_LOCKED
uint64_t alloc_unr64(struct unrhdr64 *);
#else
static __inline uint64_t
alloc_unr64(struct unrhdr64 *unr64)
{

return (atomic_fetchadd_64(&unr64->counter, 1));
}
#endif

void	intr_prof_stack_use(struct thread *td, struct trapframe *frame);

void counted_warning(unsigned *counter, const char *msg);

/*
 * APIs to manage deprecation and obsolescence.
 */
struct device;
void _gone_in(int major, const char *msg);
void _gone_in_dev(struct device *dev, int major, const char *msg);
#ifdef NO_OBSOLETE_CODE
#define __gone_ok(m, msg)					 \
	_Static_assert(m < P_OSREL_MAJOR(__FreeBSD_version)),	 \
	    "Obsolete code: " msg);
#else
#define	__gone_ok(m, msg)
#endif
#define gone_in(major, msg)		__gone_ok(major, msg) _gone_in(major, msg)
#define gone_in_dev(dev, major, msg)	__gone_ok(major, msg) _gone_in_dev(dev, major, msg)
#endif /* _KERNEL */

__NULLABILITY_PRAGMA_POP

#endif /* !_SYS_SYSTM_H_ */

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