diff --git a/sys/sys/param.h b/sys/sys/param.h
index 3595b0a43d36..33cf69f0a8ed 100644
--- a/sys/sys/param.h
+++ b/sys/sys/param.h
@@ -1,391 +1,391 @@
/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 1982, 1986, 1989, 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.
*
* @(#)param.h 8.3 (Berkeley) 4/4/95
*/
#ifndef _SYS_PARAM_H_
#define _SYS_PARAM_H_
#include <sys/_null.h>
#define BSD 199506 /* System version (year & month). */
#define BSD4_3 1
#define BSD4_4 1
/*
* __FreeBSD_version numbers are documented in the Porter's Handbook.
* If you bump the version for any reason, you should update the documentation
* there.
* Currently this lives here in the doc/ repository:
*
* documentation/content/en/books/porters-handbook/versions/_index.adoc
*
* Encoding: <major><two digit minor>Rxx
* 'R' is in the range 0 to 4 if this is a release branch or
* X.0-CURRENT before releng/X.0 is created, otherwise 'R' is
* in the range 5 to 9.
* Short hand: MMmmXXX
*
* __FreeBSD_version is bumped every time there's a change in the base system
* that's noteworthy. A noteworthy change is any change which changes the
* kernel's KBI in -CURRENT, one that changes some detail about the system that
* external software (or the ports system) would want to know about, one that
* adds a system call, one that adds or deletes a shipped library, a security
* fix, or similar change not specifically noted here. Bumps should be limited
* to one per day / a couple per week except for security fixes.
*
* The approved way to obtain this from a shell script is:
* awk '/^\#define[[:space:]]*__FreeBSD_version/ {print $3}'
* Other methods to parse this file may work, but are not guaranteed against
* future changes. The above script works back to FreeBSD 3.x when this macro
* was introduced. This number is propagated to other places needing it that
* cannot include sys/param.h and should only be updated here.
*/
#undef __FreeBSD_version
-#define __FreeBSD_version 1500003
+#define __FreeBSD_version 1500004
/*
* __FreeBSD_kernel__ indicates that this system uses the kernel of FreeBSD,
* which by definition is always true on FreeBSD. This macro is also defined
* on other systems that use the kernel of FreeBSD, such as GNU/kFreeBSD.
*
* It is tempting to use this macro in userland code when we want to enable
* kernel-specific routines, and in fact it's fine to do this in code that
* is part of FreeBSD itself. However, be aware that as presence of this
* macro is still not widespread (e.g. older FreeBSD versions, 3rd party
* compilers, etc), it is STRONGLY DISCOURAGED to check for this macro in
* external applications without also checking for __FreeBSD__ as an
* alternative.
*/
#undef __FreeBSD_kernel__
#define __FreeBSD_kernel__
#if defined(_KERNEL) || defined(_WANT_P_OSREL)
#define P_OSREL_SIGWAIT 700000
#define P_OSREL_SIGSEGV 700004
#define P_OSREL_MAP_ANON 800104
#define P_OSREL_MAP_FSTRICT 1100036
#define P_OSREL_SHUTDOWN_ENOTCONN 1100077
#define P_OSREL_MAP_GUARD 1200035
#define P_OSREL_WRFSBASE 1200041
#define P_OSREL_CK_CYLGRP 1200046
#define P_OSREL_VMTOTAL64 1200054
#define P_OSREL_CK_SUPERBLOCK 1300000
#define P_OSREL_CK_INODE 1300005
#define P_OSREL_POWERPC_NEW_AUX_ARGS 1300070
#define P_OSREL_TIDPID 1400079
#define P_OSREL_ARM64_SPSR 1400084
#define P_OSREL_MAJOR(x) ((x) / 100000)
#endif
#ifndef LOCORE
#include <sys/types.h>
#endif
/*
* Machine-independent constants (some used in following include files).
* Redefined constants are from POSIX 1003.1 limits file.
*
* MAXCOMLEN should be >= sizeof(ac_comm) (see <acct.h>)
*/
#include <sys/syslimits.h>
#define MAXCOMLEN 19 /* max command name remembered */
#define MAXINTERP PATH_MAX /* max interpreter file name length */
#define MAXLOGNAME 33 /* max login name length (incl. NUL) */
#define MAXUPRC CHILD_MAX /* max simultaneous processes */
#define NCARGS ARG_MAX /* max bytes for an exec function */
#define NGROUPS (NGROUPS_MAX+1) /* max number groups */
#define NOFILE OPEN_MAX /* max open files per process */
#define NOGROUP 65535 /* marker for empty group set member */
#define MAXHOSTNAMELEN 256 /* max hostname size */
#define SPECNAMELEN 255 /* max length of devicename */
/* More types and definitions used throughout the kernel. */
#ifdef _KERNEL
#include <sys/cdefs.h>
#include <sys/errno.h>
#ifndef LOCORE
#include <sys/time.h>
#include <sys/priority.h>
#endif
#ifndef FALSE
#define FALSE 0
#endif
#ifndef TRUE
#define TRUE 1
#endif
#endif
#ifndef _KERNEL
#ifndef LOCORE
/* Signals. */
#include <sys/signal.h>
#endif
#endif
/* Machine type dependent parameters. */
#include <machine/param.h>
#ifndef _KERNEL
#include <sys/limits.h>
#endif
#ifndef DEV_BSHIFT
#define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */
#endif
#define DEV_BSIZE (1<<DEV_BSHIFT)
#ifndef BLKDEV_IOSIZE
#define BLKDEV_IOSIZE PAGE_SIZE /* default block device I/O size */
#endif
#ifndef DFLTPHYS
#define DFLTPHYS (64 * 1024) /* default max raw I/O transfer size */
#endif
#ifndef MAXPHYS /* max raw I/O transfer size */
#ifdef __ILP32__
#define MAXPHYS (128 * 1024)
#else
#define MAXPHYS (1024 * 1024)
#endif
#endif
#ifndef MAXDUMPPGS
#define MAXDUMPPGS (DFLTPHYS/PAGE_SIZE)
#endif
/*
* Constants related to network buffer management.
* MCLBYTES must be no larger than PAGE_SIZE.
*/
#ifndef MSIZE
#define MSIZE 256 /* size of an mbuf */
#endif
#ifndef MCLSHIFT
#define MCLSHIFT 11 /* convert bytes to mbuf clusters */
#endif /* MCLSHIFT */
#define MCLBYTES (1 << MCLSHIFT) /* size of an mbuf cluster */
#if PAGE_SIZE <= 8192
#define MJUMPAGESIZE PAGE_SIZE
#else
#define MJUMPAGESIZE (8 * 1024)
#endif
#define MJUM9BYTES (9 * 1024) /* jumbo cluster 9k */
#define MJUM16BYTES (16 * 1024) /* jumbo cluster 16k */
/*
* Some macros for units conversion
*/
/* clicks to bytes */
#ifndef ctob
#define ctob(x) ((x)<<PAGE_SHIFT)
#endif
/* bytes to clicks */
#ifndef btoc
#define btoc(x) (((vm_offset_t)(x)+PAGE_MASK)>>PAGE_SHIFT)
#endif
/*
* btodb() is messy and perhaps slow because `bytes' may be an off_t. We
* want to shift an unsigned type to avoid sign extension and we don't
* want to widen `bytes' unnecessarily. Assume that the result fits in
* a daddr_t.
*/
#ifndef btodb
#define btodb(bytes) /* calculates (bytes / DEV_BSIZE) */ \
(sizeof (bytes) > sizeof(long) \
? (daddr_t)((unsigned long long)(bytes) >> DEV_BSHIFT) \
: (daddr_t)((unsigned long)(bytes) >> DEV_BSHIFT))
#endif
#ifndef dbtob
#define dbtob(db) /* calculates (db * DEV_BSIZE) */ \
((off_t)(db) << DEV_BSHIFT)
#endif
#define PRIMASK 0x0ff
#define PCATCH 0x100 /* OR'd with pri for tsleep to check signals */
#define PDROP 0x200 /* OR'd with pri to stop re-entry of interlock mutex */
#define PNOLOCK 0x400 /* OR'd with pri to allow sleeping w/o a lock */
#define PRILASTFLAG 0x400 /* Last flag defined above */
#define NZERO 0 /* default "nice" */
#define NBBY 8 /* number of bits in a byte */
#define NBPW sizeof(int) /* number of bytes per word (integer) */
#define CMASK 022 /* default file mask: S_IWGRP|S_IWOTH */
#define NODEV (dev_t)(-1) /* non-existent device */
/*
* File system parameters and macros.
*
* MAXBSIZE - Filesystems are made out of blocks of at most MAXBSIZE bytes
* per block. MAXBSIZE may be made larger without effecting
* any existing filesystems as long as it does not exceed MAXPHYS,
* and may be made smaller at the risk of not being able to use
* filesystems which require a block size exceeding MAXBSIZE.
*
* MAXBCACHEBUF - Maximum size of a buffer in the buffer cache. This must
* be >= MAXBSIZE and can be set differently for different
* architectures by defining it in <machine/param.h>.
* Making this larger allows NFS to do larger reads/writes.
*
* BKVASIZE - Nominal buffer space per buffer, in bytes. BKVASIZE is the
* minimum KVM memory reservation the kernel is willing to make.
* Filesystems can of course request smaller chunks. Actual
* backing memory uses a chunk size of a page (PAGE_SIZE).
* The default value here can be overridden on a per-architecture
* basis by defining it in <machine/param.h>.
*
* If you make BKVASIZE too small you risk seriously fragmenting
* the buffer KVM map which may slow things down a bit. If you
* make it too big the kernel will not be able to optimally use
* the KVM memory reserved for the buffer cache and will wind
* up with too-few buffers.
*
* The default is 16384, roughly 2x the block size used by a
* normal UFS filesystem.
*/
#define MAXBSIZE 65536 /* must be power of 2 */
#ifndef MAXBCACHEBUF
#define MAXBCACHEBUF MAXBSIZE /* must be a power of 2 >= MAXBSIZE */
#endif
#ifndef BKVASIZE
#define BKVASIZE 16384 /* must be power of 2 */
#endif
#define BKVAMASK (BKVASIZE-1)
/*
* MAXPATHLEN defines the longest permissible path length after expanding
* symbolic links. It is used to allocate a temporary buffer from the buffer
* pool in which to do the name expansion, hence should be a power of two,
* and must be less than or equal to MAXBSIZE. MAXSYMLINKS defines the
* maximum number of symbolic links that may be expanded in a path name.
* It should be set high enough to allow all legitimate uses, but halt
* infinite loops reasonably quickly.
*/
#define MAXPATHLEN PATH_MAX
#define MAXSYMLINKS 32
/* Bit map related macros. */
#define setbit(a,i) (((unsigned char *)(a))[(i)/NBBY] |= 1<<((i)%NBBY))
#define clrbit(a,i) (((unsigned char *)(a))[(i)/NBBY] &= ~(1<<((i)%NBBY)))
#define isset(a,i) \
(((const unsigned char *)(a))[(i)/NBBY] & (1<<((i)%NBBY)))
#define isclr(a,i) \
((((const unsigned char *)(a))[(i)/NBBY] & (1<<((i)%NBBY))) == 0)
/* Macros for counting and rounding. */
#ifndef howmany
#define howmany(x, y) (((x)+((y)-1))/(y))
#endif
#define nitems(x) (sizeof((x)) / sizeof((x)[0]))
#define rounddown(x, y) (((x)/(y))*(y))
#define rounddown2(x, y) __align_down(x, y) /* if y is power of two */
#define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) /* to any y */
#define roundup2(x, y) __align_up(x, y) /* if y is powers of two */
#define powerof2(x) ((((x)-1)&(x))==0)
/* Macros for min/max. */
#define MIN(a,b) (((a)<(b))?(a):(b))
#define MAX(a,b) (((a)>(b))?(a):(b))
#ifdef _KERNEL
/*
* Basic byte order function prototypes for non-inline functions.
*/
#ifndef LOCORE
#ifndef _BYTEORDER_PROTOTYPED
#define _BYTEORDER_PROTOTYPED
__BEGIN_DECLS
__uint32_t htonl(__uint32_t);
__uint16_t htons(__uint16_t);
__uint32_t ntohl(__uint32_t);
__uint16_t ntohs(__uint16_t);
__END_DECLS
#endif
#endif
#ifndef _BYTEORDER_FUNC_DEFINED
#define _BYTEORDER_FUNC_DEFINED
#define htonl(x) __htonl(x)
#define htons(x) __htons(x)
#define ntohl(x) __ntohl(x)
#define ntohs(x) __ntohs(x)
#endif /* !_BYTEORDER_FUNC_DEFINED */
#endif /* _KERNEL */
/*
* Scale factor for scaled integers used to count %cpu time and load avgs.
*
* The number of CPU `tick's that map to a unique `%age' can be expressed
* by the formula (1 / (2 ^ (FSHIFT - 11))). Since the intermediate
* calculation is done with 64-bit precision, the maximum load average that can
* be calculated is approximately 2^32 / FSCALE.
*
* For the scheduler to maintain a 1:1 mapping of CPU `tick' to `%age',
* FSHIFT must be at least 11. This gives a maximum load avg of 2 million.
*/
#define FSHIFT 11 /* bits to right of fixed binary point */
#define FSCALE (1<<FSHIFT)
#define dbtoc(db) /* calculates devblks to pages */ \
((db + (ctodb(1) - 1)) >> (PAGE_SHIFT - DEV_BSHIFT))
#define ctodb(db) /* calculates pages to devblks */ \
((db) << (PAGE_SHIFT - DEV_BSHIFT))
/*
* Old spelling of __containerof().
*/
#define member2struct(s, m, x) \
((struct s *)(void *)((char *)(x) - offsetof(struct s, m)))
/*
* Access a variable length array that has been declared as a fixed
* length array.
*/
#define __PAST_END(array, offset) (((__typeof__(*(array)) *)(array))[offset])
#endif /* _SYS_PARAM_H_ */