feat: Added FreeBSD man pages

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diff --git a/static/freebsd/man3/ATOMIC_VAR_INIT.3 b/static/freebsd/man3/ATOMIC_VAR_INIT.3
new file mode 100644
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--- /dev/null
+++ b/static/freebsd/man3/ATOMIC_VAR_INIT.3
@@ -0,0 +1,299 @@
+.\" Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd December 27, 2011
+.Dt ATOMIC_VAR_INIT 3
+.Os
+.Sh NAME
+.Nm ATOMIC_VAR_INIT ,
+.Nm atomic_init ,
+.Nm atomic_load ,
+.Nm atomic_store ,
+.Nm atomic_exchange ,
+.Nm atomic_compare_exchange_strong ,
+.Nm atomic_compare_exchange_weak ,
+.Nm atomic_fetch_add ,
+.Nm atomic_fetch_and ,
+.Nm atomic_fetch_or ,
+.Nm atomic_fetch_sub ,
+.Nm atomic_fetch_xor ,
+.Nm atomic_is_lock_free
+.Nd type-generic atomic operations
+.Sh SYNOPSIS
+.In stdatomic.h
+.Pp
+_Atomic(T)
+.Fa v
+= ATOMIC_VAR_INIT(c);
+.Ft void
+.Fn atomic_init "_Atomic(T) *object" "T value"
+.Ft T
+.Fn atomic_load "_Atomic(T) *object"
+.Ft T
+.Fn atomic_load_explicit "_Atomic(T) *object" "memory_order order"
+.Ft void
+.Fn atomic_store "_Atomic(T) *object" "T desired"
+.Ft void
+.Fn atomic_store_explicit "_Atomic(T) *object" "T desired" "memory_order order"
+.Ft T
+.Fn atomic_exchange "_Atomic(T) *object" "T desired"
+.Ft T
+.Fn atomic_exchange_explicit "_Atomic(T) *object" "T desired" "memory_order order"
+.Ft _Bool
+.Fn atomic_compare_exchange_strong "_Atomic(T) *object" "T *expected" "T desired"
+.Ft _Bool
+.Fn atomic_compare_exchange_strong_explicit "_Atomic(T) *object" "T *expected" "T desired" "memory_order success" "memory_order failure"
+.Ft _Bool
+.Fn atomic_compare_exchange_weak "_Atomic(T) *object" "T *expected" "T desired"
+.Ft _Bool
+.Fn atomic_compare_exchange_weak_explicit "_Atomic(T) *object" "T *expected" "T desired" "memory_order success" "memory_order failure"
+.Ft T
+.Fn atomic_fetch_add "_Atomic(T) *object" "T operand"
+.Ft T
+.Fn atomic_fetch_add_explicit "_Atomic(T) *object" "T operand" "memory_order order"
+.Ft T
+.Fn atomic_fetch_and "_Atomic(T) *object" "T operand"
+.Ft T
+.Fn atomic_fetch_and_explicit "_Atomic(T) *object" "T operand" "memory_order order"
+.Ft T
+.Fn atomic_fetch_or "_Atomic(T) *object" "T operand"
+.Ft T
+.Fn atomic_fetch_or_explicit "_Atomic(T) *object" "T operand" "memory_order order"
+.Ft T
+.Fn atomic_fetch_sub "_Atomic(T) *object" "T operand"
+.Ft T
+.Fn atomic_fetch_sub_explicit "_Atomic(T) *object" "T operand" "memory_order order"
+.Ft T
+.Fn atomic_fetch_xor "_Atomic(T) *object" "T operand"
+.Ft T
+.Fn atomic_fetch_xor_explicit "_Atomic(T) *object" "T operand" "memory_order order"
+.Ft _Bool
+.Fn atomic_is_lock_free "const _Atomic(T) *object"
+.Sh DESCRIPTION
+The header
+.In stdatomic.h
+provides type-generic macros for atomic operations.
+Atomic operations can be used by multithreaded programs to provide
+shared variables between threads that in most cases may be modified
+without acquiring locks.
+.Pp
+Atomic variables are declared using the
+.Fn _Atomic
+type specifier.
+These variables are not type-compatible with their non-atomic
+counterparts.
+Depending on the compiler used, atomic variables may be opaque and can
+therefore only be influenced using the macros described.
+.Pp
+The
+.Fn atomic_init
+macro initializes the atomic variable
+.Fa object
+with a
+.Fa value .
+Atomic variables can be initialized while being declared using
+.Fn ATOMIC_VAR_INIT .
+.Pp
+The
+.Fn atomic_load
+macro returns the value of atomic variable
+.Fa object .
+The
+.Fn atomic_store
+macro sets the atomic variable
+.Fa object
+to its
+.Fa desired
+value.
+.Pp
+The
+.Fn atomic_exchange
+macro combines the behaviour of
+.Fn atomic_load
+and
+.Fn atomic_store .
+It sets the atomic variable
+.Fa object
+to its desired
+.Fa value
+and returns the original contents of the atomic variable.
+.Pp
+The
+.Fn atomic_compare_exchange_strong
+macro stores a
+.Fa desired
+value into atomic variable
+.Fa object ,
+only if the atomic variable is equal to its
+.Fa expected
+value.
+Upon success, the macro returns
+.Dv true .
+Upon failure, the
+.Fa desired
+value is overwritten with the value of the atomic variable and
+.Dv false
+is returned.
+The
+.Fn atomic_compare_exchange_weak
+macro is identical to
+.Fn atomic_compare_exchange_strong ,
+but is allowed to fail even if atomic variable
+.Fa object
+is equal to its
+.Fa expected
+value.
+.Pp
+The
+.Fn atomic_fetch_add
+macro adds the value
+.Fa operand
+to atomic variable
+.Fa object
+and returns the original contents of the atomic variable.
+.Pp
+The
+.Fn atomic_fetch_and
+macro applies the
+.Em and
+operator to atomic variable
+.Fa object
+and
+.Fa operand
+and stores the value into
+.Fa object ,
+while returning the original contents of the atomic variable.
+.Pp
+The
+.Fn atomic_fetch_or
+macro applies the
+.Em or
+operator to atomic variable
+.Fa object
+and
+.Fa operand
+and stores the value into
+.Fa object ,
+while returning the original contents of the atomic variable.
+.Pp
+The
+.Fn atomic_fetch_sub
+macro subtracts the value
+.Fa operand
+from atomic variable
+.Fa object
+and returns the original contents of the atomic variable.
+.Pp
+The
+.Fn atomic_fetch_xor
+macro applies the
+.Em xor
+operator to atomic variable
+.Fa object
+and
+.Fa operand
+and stores the value into
+.Fa object ,
+while returning the original contents of the atomic variable.
+.Pp
+The
+.Fn atomic_is_lock_free
+macro returns whether atomic variable
+.Fa object
+uses locks when using atomic operations.
+.Sh BARRIERS
+The atomic operations described previously are implemented in such a way
+that they disallow both the compiler and the executing processor to
+re-order any nearby memory operations across the atomic operation.
+In certain cases this behaviour may cause suboptimal performance.
+To mitigate this, every atomic operation has an
+.Fn _explicit
+version that allows the re-ordering to be configured.
+.Pp
+The
+.Fa order
+parameter of these
+.Fn _explicit
+macros can have one of the following values.
+.Bl -tag -width memory_order_relaxed
+.It Dv memory_order_relaxed
+No operation orders memory.
+.It Dv memory_order_consume
+Perform consume operation.
+.It Dv memory_order_acquire
+Acquire fence.
+.It Dv memory_order_release
+Release fence.
+.It Dv memory_order_acq_rel
+Acquire and release fence.
+.It Dv memory_order_seq_cst
+Sequentially consistent acquire and release fence.
+.El
+.Pp
+The previously described macros are identical to the
+.Fn _explicit
+macros, when
+.Fa order
+is
+.Dv memory_order_seq_cst .
+.Sh COMPILER SUPPORT
+These atomic operations are typically implemented by the compiler, as
+they must be implemented type-generically and must often use special
+hardware instructions.
+As this interface has not been adopted by most compilers yet, the
+.In stdatomic.h
+header implements these macros on top of existing compiler intrinsics to
+provide forward compatibility.
+.Pp
+This means that certain aspects of the interface, such as support for
+different barrier types may simply be ignored.
+When using GCC, all atomic operations are executed as if they are using
+.Dv memory_order_seq_cst .
+.Pp
+Instead of using the atomic operations provided by this interface,
+.St -isoC-2011
+allows the atomic variables to be modified directly using built-in
+language operators.
+This behaviour cannot be emulated for older compilers.
+To prevent unintended non-atomic access to these variables, this header
+file places the atomic variable in a structure when using an older
+compiler.
+.Pp
+When using GCC on architectures on which it lacks support for built-in
+atomic intrinsics, these macros may emit function calls to fallback
+routines.
+These fallback routines are only implemented for 32-bits and 64-bits
+datatypes, if supported by the CPU.
+.Sh SEE ALSO
+.Xr pthread 3 ,
+.Xr atomic 9
+.Sh STANDARDS
+These macros attempt to conform to
+.St -isoC-2011 .
+.Sh HISTORY
+These macros appeared in
+.Fx 10.0 .
+.Sh AUTHORS
+.An \&Ed Schouten Aq Mt ed@FreeBSD.org
+.An David Chisnall Aq Mt theraven@FreeBSD.org
diff --git a/static/freebsd/man3/CMSG_DATA.3 b/static/freebsd/man3/CMSG_DATA.3
new file mode 100644
index 00000000..27e15613
--- /dev/null
+++ b/static/freebsd/man3/CMSG_DATA.3
@@ -0,0 +1,212 @@
+.\" Written by Jared Yanovich <jaredy@openbsd.org>
+.\" Public domain, July 3, 2005
+.Dd March 13, 2020
+.Dt CMSG_DATA 3
+.Os
+.Sh NAME
+.Nm CMSG_DATA ,
+.Nm CMSG_FIRSTHDR ,
+.Nm CMSG_LEN ,
+.Nm CMSG_NXTHDR ,
+.Nm CMSG_SPACE
+.Nd socket control message routines for ancillary data access
+.Sh SYNOPSIS
+.In sys/socket.h
+.Ft unsigned char *
+.Fn CMSG_DATA "struct cmsghdr *"
+.Ft struct cmsghdr *
+.Fn CMSG_FIRSTHDR "struct msghdr *"
+.Ft size_t
+.Fn CMSG_LEN "size_t"
+.Ft struct cmsghdr *
+.Fn CMSG_NXTHDR "struct msghdr *" "struct cmsghdr *"
+.Ft size_t
+.Fn CMSG_SPACE "size_t"
+.Sh DESCRIPTION
+The control message API is used to construct ancillary data objects for
+use in control messages sent and received across sockets.
+.Pp
+Control messages are passed around by the
+.Xr recvmsg 2
+and
+.Xr sendmsg 2
+system calls.
+The
+.Vt cmsghdr
+structure, described in
+.Xr recvmsg 2 ,
+is used to specify a chain of control messages.
+.Pp
+These routines should be used instead of directly accessing the control
+message header members and data buffers as they ensure that necessary
+alignment constraints are met.
+.Pp
+The following routines are provided:
+.Bl -tag -width Ds
+.It Fn CMSG_DATA cmsg
+This routine accesses the data portion of the control message header
+.Fa cmsg .
+It ensures proper alignment constraints on the beginning of ancillary
+data are met.
+.It Fn CMSG_FIRSTHDR msghdr
+This routine accesses the first control message attached to the
+message
+.Fa msghdr .
+If no control messages are attached to the message, this routine
+returns
+.Dv NULL .
+.It Fn CMSG_LEN len
+This routine determines the size in bytes of a control message,
+which includes the control message header.
+.Fa len
+specifies the length of the data held by the control message.
+This value is what is normally stored in the
+.Fa cmsg_len
+of each control message.
+This routine accounts for any alignment constraints on the beginning of
+ancillary data.
+.It Fn CMSG_NXTHDR msghdr cmsg
+This routine returns the location of the control message following
+.Fa cmsg
+in the message
+.Fa msghdr .
+If
+.Fa cmsg
+is the last control message in the chain, this routine returns
+.Dv NULL .
+.It Fn CMSG_SPACE len
+This routine determines the size in bytes needed to hold a control
+message and its contents of length
+.Fa len ,
+which includes the control message header.
+This value is what is normally stored in
+.Fa msg_msgcontrollen .
+This routine accounts for any alignment constraints on the beginning of
+ancillary data as well as any needed to pad the next control message.
+.El
+.Sh EXAMPLES
+The following example constructs a control message containing a file descriptor
+in the parent process and passes it over a pre-shared socket over the child
+process.
+Then the child process sends a "hello" string to the parent process using the
+received file descriptor.
+.Bd -literal
+#include <sys/socket.h>
+
+#include <err.h>
+#include <stdio.h>
+#include <string.h>
+#include <sysexits.h>
+#include <unistd.h>
+
+#define	HELLOLEN    sizeof("hello")
+
+int
+main()
+{
+	struct msghdr msg;
+	union {
+		struct cmsghdr hdr;
+		unsigned char	 buf[CMSG_SPACE(sizeof(int))];
+	} cmsgbuf;
+	char buf[HELLOLEN];
+	int hellofd[2];
+	int presharedfd[2];
+	struct cmsghdr *cmsg;
+
+	if (socketpair(PF_LOCAL, SOCK_STREAM, 0, presharedfd) == -1)
+		err(EX_OSERR, "failed to create a pre-shared socket pair");
+
+	memset(&msg, 0, sizeof(msg));
+	msg.msg_control = &cmsgbuf.buf;
+	msg.msg_controllen = sizeof(cmsgbuf.buf);
+	msg.msg_iov = NULL;
+	msg.msg_iovlen = 0;
+
+	switch (fork()) {
+	case -1:
+		err(EX_OSERR, "fork");
+	case 0:
+		close(presharedfd[0]);
+		strlcpy(buf, "hello", HELLOLEN);
+
+		if (recvmsg(presharedfd[1], &msg, 0) == -1)
+			err(EX_IOERR, "failed to receive a message");
+		if (msg.msg_flags & (MSG_CTRUNC | MSG_TRUNC))
+			errx(EX_IOERR, "control message truncated");
+		for (cmsg = CMSG_FIRSTHDR(&msg); cmsg != NULL;
+		    cmsg = CMSG_NXTHDR(&msg, cmsg)) {
+			if (cmsg->cmsg_len == CMSG_LEN(sizeof(int)) &&
+			    cmsg->cmsg_level == SOL_SOCKET &&
+			    cmsg->cmsg_type == SCM_RIGHTS) {
+				hellofd[1] = *(int *)CMSG_DATA(cmsg);
+				printf("child: sending '%s'\\n", buf);
+				if (write(hellofd[1], buf, HELLOLEN) == -1)
+				    err(EX_IOERR, "failed to send 'hello'");
+			}
+		}
+		break;
+	default:
+		close(presharedfd[1]);
+
+		if (socketpair(PF_LOCAL, SOCK_STREAM, 0, hellofd) == -1)
+			err(EX_OSERR, "failed to create a 'hello' socket pair");
+
+		cmsg = CMSG_FIRSTHDR(&msg);
+		cmsg->cmsg_len = CMSG_LEN(sizeof(int));
+		cmsg->cmsg_level = SOL_SOCKET;
+		cmsg->cmsg_type = SCM_RIGHTS;
+		*(int *)CMSG_DATA(cmsg) = hellofd[1];
+
+		if (sendmsg(presharedfd[0], &msg, 0) == -1)
+			err(EX_IOERR, "sendmsg");
+		close(hellofd[1]);
+
+		if (read(hellofd[0], buf, HELLOLEN) == -1)
+			err(EX_IOERR, "failed to receive 'hello'");
+		printf("parent: received '%s'\\n", buf);
+		break;
+	}
+
+	return (0);
+}
+.Ed
+.Sh SEE ALSO
+.Xr recvmsg 2 ,
+.Xr sendmsg 2 ,
+.Xr socket 2 ,
+.Xr ip 4 ,
+.Xr ip6 4 ,
+.Xr unix 4
+.Sh STANDARDS
+.Bl -item
+.It
+.Rs
+.%A W. Stevens
+.%A M. Thomas
+.%T "Advanced Sockets API for IPv6"
+.%R RFC 2292
+.%D February 1998
+.Re
+.It
+.Rs
+.%A W. Stevens
+.%A M. Thomas
+.%A E. Nordmark
+.%A T. Jinmei
+.%T "Advanced Sockets Application Program Interface (API) for IPv6"
+.%R RFC 3542
+.%D May 2003
+.Re
+.El
+.Sh HISTORY
+The control message API first appeared in
+.Bx 4.2 .
+This manual page was originally written by
+.An Jared Yanovich Aq Mt jaredy@OpenBSD.org
+for
+.Ox 3.8
+and eventually brought to
+.Fx 12.0
+by
+.An Mateusz Piotrowski Aq Mt 0mp@FreeBSD.org .
diff --git a/static/freebsd/man3/Makefile b/static/freebsd/man3/Makefile
new file mode 100644
index 00000000..c070e829
--- /dev/null
+++ b/static/freebsd/man3/Makefile
@@ -0,0 +1,3 @@
+MAN = $(wildcard *.3)
+
+include ../../mandoc.mk
diff --git a/static/freebsd/man3/Q_FRAWMASK.3 b/static/freebsd/man3/Q_FRAWMASK.3
new file mode 100644
index 00000000..4d03b259
--- /dev/null
+++ b/static/freebsd/man3/Q_FRAWMASK.3
@@ -0,0 +1,123 @@
+.\"
+.\" Copyright (c) 2018 Netflix, Inc.
+.\" All rights reserved.
+.\"
+.\" 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,
+.\"    without modification, immediately at the beginning of the file.
+.\" 2. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd July 8, 2018
+.Dt Q_FRAWMASK 3
+.Os
+.Sh NAME
+.Nm Q_FRAWMASK ,
+.Nm Q_GFRAW ,
+.Nm Q_GFABSVAL ,
+.Nm Q_GFVAL ,
+.Nm Q_SFVAL
+.Nd fixed-point math functions which manipulate the fractional data bits
+.Sh SYNOPSIS
+.In sys/qmath.h
+.Ft ITYPE
+.Fn Q_FRAWMASK "QTYPE q"
+.Ft ITYPE
+.Fn Q_GFRAW "QTYPE q"
+.Ft ITYPE
+.Fn Q_GFABSVAL "QTYPE q"
+.Ft ITYPE
+.Fn Q_GFVAL "QTYPE q"
+.Ft QTYPE
+.Fn Q_SFVAL "QTYPE q" "ITYPE fv"
+.Sh DESCRIPTION
+.Fn Q_FRAWMASK
+returns a
+.Fa q Ns -specific
+bit mask for
+.Fa q Ap s
+fractional data bits.
+.Pp
+.Fn Q_GFRAW
+returns
+.Fa q Ap s
+raw masked fractional data bits.
+.Pp
+.Fn Q_GFABSVAL
+and
+.Fn Q_GFVAL
+return the absolute and real values of
+.Fa q Ap s
+fractional data bits respectively.
+.Pp
+.Fn Q_SFVAL
+sets
+.Fa q Ap s
+fractional data bits to the value
+.Fa fv .
+.Pp
+All of those functions operate on
+the following data types:
+.Vt s8q_t ,
+.Vt u8q_t ,
+.Vt s16q_t ,
+.Vt u16q_t ,
+.Vt s32q_t ,
+.Vt u32q_t ,
+.Vt s64q_t ,
+and
+.Vt u64q_t ,
+which are referred to generically as
+.Fa QTYPE .
+The
+.Fa ITYPE
+refers to the
+.Xr stdint 7
+integer types.
+.Pp
+For more details, see
+.Xr qmath 3 .
+.Sh RETURN VALUES
+.Fn Q_FRAWMASK ,
+.Fn Q_GFRAW ,
+.Fn Q_GFABSVAL
+and
+.Fn Q_GFVAL
+return their respective values as integers of the same underlying ITYPE as
+.Fa q .
+.Pp
+.Fn Q_SFVAL
+returns the value of
+.Fa q
+post set.
+.Sh SEE ALSO
+.Xr errno 2 ,
+.Xr qmath 3 ,
+.Xr stdint 7
+.Sh HISTORY
+The
+.Xr qmath 3
+functions first appeared in
+.Fx 13.0 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Xr qmath 3
+functions and this manual page were written by
+.An Lawrence Stewart Aq Mt lstewart@FreeBSD.org
+and sponsored by Netflix, Inc.
diff --git a/static/freebsd/man3/Q_IFRAWMASK.3 b/static/freebsd/man3/Q_IFRAWMASK.3
new file mode 100644
index 00000000..b6885084
--- /dev/null
+++ b/static/freebsd/man3/Q_IFRAWMASK.3
@@ -0,0 +1,160 @@
+.\"
+.\" Copyright (c) 2018 Netflix, Inc.
+.\" All rights reserved.
+.\"
+.\" 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,
+.\"    without modification, immediately at the beginning of the file.
+.\" 2. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd July 8, 2018
+.Dt Q_IFRAWMASK 3
+.Os
+.Sh NAME
+.Nm Q_IFRAWMASK ,
+.Nm Q_IFVALIMASK ,
+.Nm Q_IFVALFMASK ,
+.Nm Q_GIFRAW ,
+.Nm Q_GIFABSVAL ,
+.Nm Q_GIFVAL ,
+.Nm Q_SIFVAL ,
+.Nm Q_SIFVALS
+.Nd fixed-point math functions which manipulate the combined integer/fractional
+data bits
+.Sh SYNOPSIS
+.In sys/qmath.h
+.Ft ITYPE
+.Fn Q_IFRAWMASK "QTYPE q"
+.Ft ITYPE
+.Fn Q_IFVALIMASK "QTYPE q"
+.Ft ITYPE
+.Fn Q_IFVALFMASK "QTYPE q"
+.Ft ITYPE
+.Fn Q_GIFRAW "QTYPE q"
+.Ft ITYPE
+.Fn Q_GIFABSVAL "QTYPE q"
+.Ft ITYPE
+.Fn Q_GIFVAL "QTYPE q"
+.Ft QTYPE
+.Fn Q_SIFVAL "QTYPE q" "ITYPE ifv"
+.Ft QTYPE
+.Fn Q_SIFVALS "QTYPE q" "ITYPE iv" "ITYPE fv"
+.Sh DESCRIPTION
+.Fn Q_IFRAWMASK
+returns a
+.Fa q Ns -specific
+bit mask for
+.Fa q Ap s
+combined integer and fractional data bits.
+.Pp
+.Fn Q_IFVALIMASK
+and
+.Fn Q_IFVALFMASK
+return
+.Fa q Ns -specific
+bit masks for the integer and fractional bits of
+.Fa q Ap s
+combined integer and fractional data bits value, i.e., are applicable to the
+values returned by
+.Fn Q_GIFABSVAL
+and
+.Fn Q_GIFVAL .
+.Pp
+.Fn Q_GIFRAW
+returns
+.Fa q Ap s
+raw masked integer/fractional data bits.
+.Pp
+.Fn Q_GIFABSVAL
+and
+.Fn Q_GIFVAL
+return the absolute and real values of
+.Fa q Ap s
+integer/fractional data bits respectively.
+.Pp
+.Fn Q_SIFVAL
+sets
+.Fa q Ap s
+combined integer/fractional data bits to the value
+.Fa ifv ,
+whereas
+.Fn Q_SIFVALS
+independently sets
+.Fa q Ap s
+integer and fractional data bits to the separate values
+.Fa iv
+and
+.Fa fv .
+.Pp
+All of those functions operate on
+the following data types:
+.Vt s8q_t ,
+.Vt u8q_t ,
+.Vt s16q_t ,
+.Vt u16q_t ,
+.Vt s32q_t ,
+.Vt u32q_t ,
+.Vt s64q_t ,
+and
+.Vt u64q_t ,
+which are referred to generically as
+.Fa QTYPE .
+The
+.Fa ITYPE
+refers to the
+.Xr stdint 7
+integer types.
+.Pp
+For more details, see
+.Xr qmath 3 .
+.Sh RETURN VALUES
+.Fn Q_IFRAWMASK ,
+.Fn Q_IFVALIMASK ,
+.Fn Q_IFVALFMASK ,
+.Fn Q_GIFABSVAL ,
+.Fn Q_GIFVAL ,
+.Fn Q_GIFRAW ,
+.Fn Q_GIFABSVAL
+and
+.Fn Q_GIFVAL
+return their respective values as integers of the same underlying ITYPE as
+.Fa q .
+.Pp
+.Fn Q_SIFVAL
+and
+.Fn Q_SIFVALS
+return the value of
+.Fa q
+post change.
+.Sh SEE ALSO
+.Xr errno 2 ,
+.Xr qmath 3 ,
+.Xr stdint 7
+.Sh HISTORY
+The
+.Xr qmath 3
+functions first appeared in
+.Fx 13.0 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Xr qmath 3
+functions and this manual page were written by
+.An Lawrence Stewart Aq Mt lstewart@FreeBSD.org
+and sponsored by Netflix, Inc.
diff --git a/static/freebsd/man3/Q_INI.3 b/static/freebsd/man3/Q_INI.3
new file mode 100644
index 00000000..b7794d72
--- /dev/null
+++ b/static/freebsd/man3/Q_INI.3
@@ -0,0 +1,259 @@
+.\"
+.\" Copyright (c) 2018 Netflix, Inc.
+.\" All rights reserved.
+.\"
+.\" 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,
+.\"    without modification, immediately at the beginning of the file.
+.\" 2. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd July 8, 2018
+.Dt Q_INI 3
+.Os
+.Sh NAME
+.Nm Q_INI ,
+.Nm Q_NCBITS ,
+.Nm Q_BT ,
+.Nm Q_TC ,
+.Nm Q_NTBITS ,
+.Nm Q_NFCBITS ,
+.Nm Q_MAXNFBITS ,
+.Nm Q_NFBITS ,
+.Nm Q_NIBITS ,
+.Nm Q_RPSHFT ,
+.Nm Q_ABS ,
+.Nm Q_MAXSTRLEN ,
+.Nm Q_TOSTR ,
+.Nm Q_SHL ,
+.Nm Q_SHR ,
+.Nm Q_DEBUG
+.Nd fixed-point math miscellaneous functions/variables
+.Sh SYNOPSIS
+.In sys/qmath.h
+.Ft QTYPE
+.Fn Q_INI "QTYPE *q" "ITYPE iv" "ITYPE dfv" "int rpshft"
+.Fd Q_NCBITS
+.Ft __typeof(q)
+.Fn Q_BT "QTYPE q"
+.Ft ITYPE
+.Fn Q_TC "QTYPE q" "ITYPE v"
+.Ft uint32_t
+.Fn Q_NTBITS "QTYPE q"
+.Ft uint32_t
+.Fn Q_NFCBITS "QTYPE q"
+.Ft uint32_t
+.Fn Q_MAXNFBITS "QTYPE q"
+.Ft uint32_t
+.Fn Q_NFBITS "QTYPE q"
+.Ft uint32_t
+.Fn Q_NIBITS "QTYPE q"
+.Ft uint32_t
+.Fn Q_RPSHFT "QTYPE q"
+.Ft NTYPE
+.Fn Q_ABS "NTYPE n"
+.Ft uint32_t
+.Fn Q_MAXSTRLEN "QTYPE q" "int base"
+.Ft char *
+.Fn Q_TOSTR "QTYPE q" "int prec" "int base" "char *s" "int slen"
+.Ft ITYPE
+.Fn Q_SHL "QTYPE q" "ITYPE iv"
+.Ft ITYPE
+.Fn Q_SHR "QTYPE q" "ITYPE iv"
+.Ft char *, ...
+.Fn Q_DEBUG "QTYPE q" "char *prefmt" "char *postfmt" "incfmt"
+.Ft ITYPE
+.Fn Q_DFV2BFV "ITYPE dfv" "int nfbits"
+.Sh DESCRIPTION
+.Fn Q_INI
+initialises a Q number with the supplied integral value
+.Fa iv
+and decimal fractional value
+.Fa dfv ,
+with appropriate control bits based on the requested radix shift point
+.Fa rpshft .
+.Fa dfv
+must be passed as a preprocessor literal to preserve leading zeroes.
+.Pp
+The
+.Dv Q_NCBITS
+defined constant specifies the number of reserved control bits, currently 3.
+.Pp
+.Fn Q_NTBITS ,
+.Fn Q_NFCBITS ,
+.Fn Q_MAXNFBITS ,
+.Fn Q_NFBITS
+and
+.Fn Q_NIBITS
+return the
+.Fa q Ns -specific
+count of total, control-encoded fractional, maximum fractional, effective
+fractional, and integer bits applicable to
+.Fa q
+respectively.
+.Pp
+.Fn Q_BT
+returns the C data type of
+.Fa q ,
+while
+.Fn Q_TC
+returns
+.Fa v
+type casted to the C data type of
+.Fa q .
+.Pp
+.Fn Q_RPSHFT
+returns the bit position of
+.Fa q Ap s
+binary radix point relative to bit zero.
+.Pp
+.Fn Q_ABS
+returns the absolute value of any standard numeric type
+.Pq that uses the MSB as a sign bit, but not Q numbers
+passed in as
+.Fa n .
+The function is signed/unsigned type safe.
+.Pp
+.Fn Q_SHL
+and
+.Fn Q_SHR
+return the integral value
+.Fa v
+left or right shifted by the appropriate amount for
+.Fa q .
+.Pp
+.Fn Q_MAXSTRLEN
+calculates the maximum number of characters that may be required to render the
+C-string representation of
+.Fa q
+with numeric base
+.Fa base .
+.Pp
+.Fn Q_TOSTR
+renders the C-string representation of
+.Fa q
+with numeric base
+.Fa base
+and fractional precision
+.Fa prec
+into
+.Fa s
+which has an available capacity of
+.Fa slen
+characters.
+.Fa base
+must be in range
+.Bq 2,16 .
+Specifying
+.Fa prec
+as -1 renders the number's fractional component with maximum precision.
+If
+.Fa slen
+is greater than zero but insufficient to hold the complete C-string, the '\\0'
+C-string terminator will be written to
+.Fa *s ,
+thereby returning a zero length C-string.
+.Pp
+.Fn Q_DEBUG
+returns a format string and associated data suitable for printf-like rendering
+of debugging information pertaining to
+.Fa q .
+If either
+.Fa prefmt
+and/or
+.Fa postfmt
+are specified, they are prepended and appended to the resulting format string
+respectively.
+The
+.Fa incfmt
+boolean specifies whether to include
+.Pq Vt true
+or exclude
+.Pq Vt false
+the raw format string itself in the debugging output.
+.Pp
+.Fn Q_DFV2BFV
+converts decimal fractional value
+.Fa dfv
+to its binary-encoded representation with
+.Fa nfbits
+of binary precision.
+.Fa dfv
+must be passed as a preprocessor literal to preserve leading zeroes.
+The returned value can be used to set a Q number's fractional bits, for example
+using
+.Fn Q_SFVAL .
+.Pp
+All of those functions operate on
+the following data types:
+.Vt s8q_t ,
+.Vt u8q_t ,
+.Vt s16q_t ,
+.Vt u16q_t ,
+.Vt s32q_t ,
+.Vt u32q_t ,
+.Vt s64q_t ,
+and
+.Vt u64q_t ,
+which are referred to generically as
+.Fa QTYPE .
+The
+.Fa ITYPE
+refers to the
+.Xr stdint 7
+integer types.
+.Fa NTYPE
+is used to refer to any numeric type and is therefore a superset of
+.Fa QTYPE
+and
+.Fa ITYPE .
+.Pp
+For more details, see
+.Xr qmath 3 .
+.Sh RETURN VALUES
+.Fn Q_INI
+returns the initialised Q number which can be used to chain initialise
+additional Q numbers.
+.Pp
+.Fn Q_TOSTR
+returns a pointer to the '\\0' C-string terminator appended to
+.Fa s
+after the rendered numeric data, or NULL on buffer overflow.
+.Pp
+.Fn Q_DFV2BFV
+returns the binary-encoded representation of decimal fractional value
+.Fa dfv
+with
+.Fa nfbits
+of binary precision.
+.Sh SEE ALSO
+.Xr errno 2 ,
+.Xr qmath 3 ,
+.Xr stdint 7
+.Sh HISTORY
+The
+.Xr qmath 3
+functions first appeared in
+.Fx 13.0 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Xr qmath 3
+functions and this manual page were written by
+.An Lawrence Stewart Aq Mt lstewart@FreeBSD.org
+and sponsored by Netflix, Inc.
diff --git a/static/freebsd/man3/Q_IRAWMASK.3 b/static/freebsd/man3/Q_IRAWMASK.3
new file mode 100644
index 00000000..a15b885c
--- /dev/null
+++ b/static/freebsd/man3/Q_IRAWMASK.3
@@ -0,0 +1,123 @@
+.\"
+.\" Copyright (c) 2018 Netflix, Inc.
+.\" All rights reserved.
+.\"
+.\" 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,
+.\"    without modification, immediately at the beginning of the file.
+.\" 2. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd July 8, 2018
+.Dt Q_IRAWMASK 3
+.Os
+.Sh NAME
+.Nm Q_IRAWMASK ,
+.Nm Q_GIRAW ,
+.Nm Q_GIABSVAL ,
+.Nm Q_GIVAL ,
+.Nm Q_SIVAL
+.Nd fixed-point math functions which manipulate the integer data bits
+.Sh SYNOPSIS
+.In sys/qmath.h
+.Ft ITYPE
+.Fn Q_IRAWMASK "QTYPE q"
+.Ft ITYPE
+.Fn Q_GIRAW "QTYPE q"
+.Ft ITYPE
+.Fn Q_GIABSVAL "QTYPE q"
+.Ft ITYPE
+.Fn Q_GIVAL "QTYPE q"
+.Ft QTYPE
+.Fn Q_SIVAL "QTYPE q" "ITYPE iv"
+.Sh DESCRIPTION
+.Fn Q_IRAWMASK
+returns a
+.Fa q Ns -specific
+bit mask for
+.Fa q Ap s
+integer data bits.
+.Pp
+.Fn Q_GIRAW
+returns
+.Fa q Ap s
+raw masked integer data bits.
+.Pp
+.Fn Q_GIABSVAL
+and
+.Fn Q_GIVAL
+return the absolute and real values of
+.Fa q Ap s
+integer data bits respectively.
+.Pp
+.Fn Q_SIVAL
+sets
+.Fa q Ap s
+integer data bits to the value
+.Fa iv .
+.Pp
+All of those functions operate on
+the following data types:
+.Vt s8q_t ,
+.Vt u8q_t ,
+.Vt s16q_t ,
+.Vt u16q_t ,
+.Vt s32q_t ,
+.Vt u32q_t ,
+.Vt s64q_t ,
+and
+.Vt u64q_t ,
+which are referred to generically as
+.Fa QTYPE .
+The
+.Fa ITYPE
+refers to the
+.Xr stdint 7
+integer types.
+.Pp
+For more details, see
+.Xr qmath 3 .
+.Sh RETURN VALUES
+.Fn Q_IRAWMASK ,
+.Fn Q_GIRAW ,
+.Fn Q_GIABSVAL
+and
+.Fn Q_GIVAL
+return their respective values as integers of the same underlying ITYPE as
+.Fa q .
+.Pp
+.Fn Q_SIVAL
+returns the value of
+.Fa q
+post change.
+.Sh SEE ALSO
+.Xr errno 2 ,
+.Xr qmath 3 ,
+.Xr stdint 7
+.Sh HISTORY
+The
+.Xr qmath 3
+functions first appeared in
+.Fx 13.0 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Xr qmath 3
+functions and this manual page were written by
+.An Lawrence Stewart Aq Mt lstewart@FreeBSD.org
+and sponsored by Netflix, Inc.
diff --git a/static/freebsd/man3/Q_QABS.3 b/static/freebsd/man3/Q_QABS.3
new file mode 100644
index 00000000..31219e1f
--- /dev/null
+++ b/static/freebsd/man3/Q_QABS.3
@@ -0,0 +1,99 @@
+.\"
+.\" Copyright (c) 2018 Netflix, Inc.
+.\" All rights reserved.
+.\"
+.\" 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,
+.\"    without modification, immediately at the beginning of the file.
+.\" 2. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd July 8, 2018
+.Dt Q_QABS 3
+.Os
+.Sh NAME
+.Nm Q_QABS ,
+.Nm Q_Q2S ,
+.Nm Q_Q2F
+.Nd fixed-point math functions which operate on a single Q number
+.Sh SYNOPSIS
+.In sys/qmath.h
+.Ft QTYPE
+.Fn Q_QABS "QTYPE q"
+.Ft double
+.Fn Q_Q2D "QTYPE q"
+.Ft float
+.Fn Q_Q2F "QTYPE q"
+.Sh DESCRIPTION
+The
+.Fn Q_QABS
+function returns an absolute value representation of
+.Fa q .
+.Pp
+The
+.Fn Q_Q2D
+and
+.Fn Q_Q2F
+functions return the double and float representations of
+.Fa q
+respectively.
+.Pp
+All of those functions operate on
+the following data types:
+.Vt s8q_t ,
+.Vt u8q_t ,
+.Vt s16q_t ,
+.Vt u16q_t ,
+.Vt s32q_t ,
+.Vt u32q_t ,
+.Vt s64q_t ,
+and
+.Vt u64q_t ,
+which are referred to generically as
+.Fa QTYPE .
+.Pp
+For more details, see
+.Xr qmath 3 .
+.Sh RETURN VALUES
+.Fn Q_QABS
+function returns a QTYPE that is identical to that of
+.Fa q .
+.Pp
+The
+.Fn Q_Q2D
+and
+.Fn Q_Q2F
+functions return the double and float representations of
+.Fa q
+respectively.
+.Sh SEE ALSO
+.Xr errno 2 ,
+.Xr qmath 3 ,
+.Xr stdint 7
+.Sh HISTORY
+The
+.Xr qmath 3
+functions first appeared in
+.Fx 13.0 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Xr qmath 3
+functions and this manual page were written by
+.An Lawrence Stewart Aq Mt lstewart@FreeBSD.org
+and sponsored by Netflix, Inc.
diff --git a/static/freebsd/man3/Q_QADDI.3 b/static/freebsd/man3/Q_QADDI.3
new file mode 100644
index 00000000..5b1bc8c2
--- /dev/null
+++ b/static/freebsd/man3/Q_QADDI.3
@@ -0,0 +1,132 @@
+.\"
+.\" Copyright (c) 2018 Netflix, Inc.
+.\" All rights reserved.
+.\"
+.\" 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,
+.\"    without modification, immediately at the beginning of the file.
+.\" 2. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd July 8, 2018
+.Dt Q_QADDI 3
+.Os
+.Sh NAME
+.Nm Q_QADDI ,
+.Nm Q_QDIVI ,
+.Nm Q_QMULI ,
+.Nm Q_QSUBI ,
+.Nm Q_QFRACI ,
+.Nm Q_QCPYVALI
+.Nd fixed-point math functions which apply integers to a Q number
+.Sh SYNOPSIS
+.In sys/qmath.h
+.Ft int
+.Fn Q_QADDI "QTYPE *a" "ITYPE b"
+.Ft int
+.Fn Q_QDIVI "QTYPE *a" "ITYPE b"
+.Ft int
+.Fn Q_QMULI "QTYPE *a" "ITYPE b"
+.Ft int
+.Fn Q_QSUBI "QTYPE *a" "ITYPE b"
+.Ft int
+.Fn Q_QFRACI "QTYPE *q" "ITYPE n" "ITYPE d"
+.Ft int
+.Fn Q_QCPYVALI "QTYPE *q" "ITYPE i"
+.Sh DESCRIPTION
+The
+.Fn Q_QADDI ,
+.Fn Q_QDIVI ,
+.Fn Q_QMULI
+and
+.Fn Q_QSUBI
+functions add, divide, multiply or subtract
+.Fa b
+to/by/from
+.Fa a
+respectively, storing the result in
+.Fa a .
+.Pp
+The
+.Fn Q_QFRACI
+function computes the fraction
+.Fa n
+divided by
+.Fa d
+and stores the fixed-point result in
+.Fa q .
+.Pp
+The
+.Fn Q_QCPYVALI
+function overwrites
+.Fa q Ap s
+integer and fractional bits with the Q representation of integer value
+.Fa i .
+.Pp
+All of those functions operate on
+the following data types:
+.Vt s8q_t ,
+.Vt u8q_t ,
+.Vt s16q_t ,
+.Vt u16q_t ,
+.Vt s32q_t ,
+.Vt u32q_t ,
+.Vt s64q_t ,
+and
+.Vt u64q_t ,
+which are referred to generically as
+.Fa QTYPE .
+The
+.Fa ITYPE
+refers to the
+.Xr stdint 7
+integer types.
+.Pp
+For more details, see
+.Xr qmath 3 .
+.Sh RETURN VALUES
+.Fn Q_QADDI ,
+.Fn Q_QDIVI ,
+.Fn Q_QMULI ,
+.Fn Q_QSUBI ,
+.Fn Q_QFRACI
+and
+.Fn Q_QCPYVALI
+functions return 0 on success, or an errno on failure.
+.Er EINVAL
+is returned for divide-by-zero.
+.Er EOVERFLOW
+and
+.Er ERANGE
+are returned for overflow and underflow respectively.
+.Sh SEE ALSO
+.Xr errno 2 ,
+.Xr qmath 3 ,
+.Xr stdint 7
+.Sh HISTORY
+The
+.Xr qmath 3
+functions first appeared in
+.Fx 13.0 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Xr qmath 3
+functions and this manual page were written by
+.An Lawrence Stewart Aq Mt lstewart@FreeBSD.org
+and sponsored by Netflix, Inc.
diff --git a/static/freebsd/man3/Q_QADDQ.3 b/static/freebsd/man3/Q_QADDQ.3
new file mode 100644
index 00000000..d6a7df7f
--- /dev/null
+++ b/static/freebsd/man3/Q_QADDQ.3
@@ -0,0 +1,173 @@
+.\"
+.\" Copyright (c) 2018 Netflix, Inc.
+.\" All rights reserved.
+.\"
+.\" 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,
+.\"    without modification, immediately at the beginning of the file.
+.\" 2. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd July 8, 2018
+.Dt Q_QADDQ 3
+.Os
+.Sh NAME
+.Nm Q_QADDQ ,
+.Nm Q_QDIVQ ,
+.Nm Q_QMULQ ,
+.Nm Q_QSUBQ ,
+.Nm Q_NORMPREC ,
+.Nm Q_QMAXQ ,
+.Nm Q_QMINQ ,
+.Nm Q_QCLONEQ ,
+.Nm Q_CPYVALQ
+.Nd fixed-point math functions which operate on two Q numbers
+.Sh SYNOPSIS
+.In sys/qmath.h
+.Ft int
+.Fn Q_QADDQ "QTYPE *a" "QTYPE b"
+.Ft int
+.Fn Q_QDIVQ "QTYPE *a" "QTYPE b"
+.Ft int
+.Fn Q_QMULQ "QTYPE *a" "QTYPE b"
+.Ft int
+.Fn Q_QSUBQ "QTYPE *a" "QTYPE b"
+.Ft int
+.Fn Q_NORMPREC "QTYPE *a" "QTYPE *b"
+.Ft QTYPE
+.Fn Q_QMAXQ "QTYPE a" "QTYPE b"
+.Ft QTYPE
+.Fn Q_QMINQ "QTYPE a" "QTYPE b"
+.Ft int
+.Fn Q_QCLONEQ "QTYPE *l" "QTYPE r"
+.Ft int
+.Fn Q_QCPYVALQ "QTYPE *l" "QTYPE r"
+.Sh DESCRIPTION
+The
+.Fn Q_QADDQ ,
+.Fn Q_QDIVQ ,
+.Fn Q_QMULQ ,
+and
+.Fn Q_QSUBQ
+functions add, divide, multiply or subtract
+.Fa b
+to/by/from
+.Fa a
+respectively, storing the result in
+.Fa a .
+Both arguments must be initialized with the same fractional radix point.
+.Pp
+The
+.Fn Q_NORMPREC
+function attempts to normalise the precision of
+.Fa a
+and
+.Fa b
+if they differ.
+The greater of the two precisions is preferred if possible, unless that would
+truncate integer component data for the other operand, in which case the highest
+precision that preserves the integer component of both
+.Fa a
+and
+.Fa b
+is selected.
+.Pp
+The
+.Fn Q_QMAXQ
+and
+.Fn Q_QMINQ
+functions return the larger or smaller of
+.Fa a
+and
+.Fa b
+respectively.
+.Pp
+The
+.Fn Q_QCLONEQ
+and
+.Fn Q_QCPYVALQ
+functions attempt to store identical or representational copies of
+.Fa r ,
+in
+.Fa l
+respectively.
+An identical Q number produced by cloning copies the control bits as well as the
+verbatim integer/fractional bits.
+A representational copy only copies the values of
+.Fa r Ap s
+integer and fractional bits, representing them in the bits available per
+.Fa l Ap s
+Q format.
+.Pp
+All of those functions operate on the following data types:
+.Vt s8q_t ,
+.Vt u8q_t ,
+.Vt s16q_t ,
+.Vt u16q_t ,
+.Vt s32q_t ,
+.Vt u32q_t ,
+.Vt s64q_t ,
+and
+.Vt u64q_t ,
+which are referred to generically as
+.Fa QTYPE .
+.Pp
+For more details, see
+.Xr qmath 3 .
+.Sh RETURN VALUES
+The
+.Fn Q_QADDQ ,
+.Fn Q_QDIVQ ,
+.Fn Q_QMULQ ,
+.Fn Q_QSUBQ
+.Fn Q_NORMPREC ,
+.Fn Q_QCLONEQ
+and
+.Fn Q_QCPYVALQ
+functions return 0 on success, or an errno on failure.
+.Er EINVAL
+is returned for divide-by-zero.
+.Er EOVERFLOW
+and
+.Er ERANGE
+are returned for overflow and underflow respectively.
+.Er ERANGE is also returned when the precision of arguments
+does not match.
+.Pp
+The
+.Fn Q_QMAXQ
+and
+.Fn Q_QMINQ
+functions return the numerically larger or smaller of their two inputs
+respectively.
+.Sh SEE ALSO
+.Xr errno 2 ,
+.Xr qmath 3 ,
+.Xr stdint 7
+.Sh HISTORY
+The
+.Xr qmath 3
+functions first appeared in
+.Fx 13.0 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Xr qmath 3
+functions and this manual page were written by
+.An Lawrence Stewart Aq Mt lstewart@FreeBSD.org
+and sponsored by Netflix, Inc.
diff --git a/static/freebsd/man3/Q_SIGNED.3 b/static/freebsd/man3/Q_SIGNED.3
new file mode 100644
index 00000000..528757dc
--- /dev/null
+++ b/static/freebsd/man3/Q_SIGNED.3
@@ -0,0 +1,208 @@
+.\"
+.\" Copyright (c) 2018 Netflix, Inc.
+.\" All rights reserved.
+.\"
+.\" 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,
+.\"    without modification, immediately at the beginning of the file.
+.\" 2. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd July 8, 2018
+.Dt Q_SIGNED 3
+.Os
+.Sh NAME
+.Nm Q_SIGNED ,
+.Nm Q_LTZ ,
+.Nm Q_PRECEQ ,
+.Nm Q_QLTQ ,
+.Nm Q_QLEQ ,
+.Nm Q_QGTQ ,
+.Nm Q_QGEQ ,
+.Nm Q_QEQ ,
+.Nm Q_QNEQ ,
+.Nm Q_OFLOW ,
+.Nm Q_RELPREC
+.Nd fixed-point math comparison and logic functions
+.Sh SYNOPSIS
+.In sys/qmath.h
+.Ft bool
+.Fn Q_SIGNED "NTYPE n"
+.Ft bool
+.Fn Q_LTZ "NTYPE n"
+.Ft bool
+.Fn Q_PRECEQ "QTYPE a" "QTYPE b"
+.Ft bool
+.Fn Q_QLTQ "QTYPE a" "QTYPE b"
+.Ft bool
+.Fn Q_QLEQ "QTYPE a" "QTYPE b"
+.Ft bool
+.Fn Q_QGTQ "QTYPE a" "QTYPE b"
+.Ft bool
+.Fn Q_QGEQ "QTYPE a" "QTYPE b"
+.Ft bool
+.Fn Q_QEQ "QTYPE a" "QTYPE b"
+.Ft bool
+.Fn Q_QNEQ "QTYPE a" "QTYPE b"
+.Ft bool
+.Fn Q_OFLOW "QTYPE q" "ITYPE iv"
+.Ft int
+.Fn Q_RELPREC "QTYPE a" "QTYPE b"
+.Sh DESCRIPTION
+.Fn Q_SIGNED
+returns
+.Ft true
+if the numeric data type passed in as
+.Fa n
+is signed, or
+.Ft false
+otherwise.
+.Pp
+.Fn Q_LTZ
+returns
+.Ft true
+if the numeric value
+passed in as
+.Fa n
+is negative
+.Pq requires types which use the MSB as the sign bit ,
+or
+.Ft false
+otherwise.
+.Pp
+.Fn Q_PRECEQ
+returns
+.Ft true
+if the number of
+.Fa a
+and
+.Fa b
+fractional bits is the same,
+.Ft false
+otherwise.
+.Pp
+The
+.Fn Q_QLTQ ,
+.Fn Q_QLEQ ,
+.Fn Q_QGTQ ,
+.Fn Q_QGEQ ,
+.Fn Q_QEQ
+and
+.Fn Q_QNEQ
+functions compare two Q numbers, returning
+.Ft true
+if
+.Fa a
+is less than, less than or equal to, greater than, greater than or equal to,
+equal to, or not equal to
+.Fa b
+respectively, or
+.Ft false
+otherwise.
+The integral and fractional values are used to perform the comparison, without
+explicit concern for the underlying number of integer versus fractional bits.
+.Pp
+.Fn Q_OFLOW
+returns
+.Ft true
+if integer value
+.Fa iv
+cannot be stored in
+.Fa q
+without truncation, or false otherwise.
+.Pp
+.Fn Q_RELPREC
+returns the relative precision of
+.Fa a
+versus
+.Fa b .
+In terms of
+.Em Qm.n
+notation, this function returns the difference between the
+.Em n
+values of
+.Fa a
+and
+.Fa b .
+For example, a return value of +4 means that
+.Fa a
+has an additional 4 bits of fractional precision compared to
+.Fa b .
+.Pp
+All of those functions operate on
+the following data types:
+.Vt s8q_t ,
+.Vt u8q_t ,
+.Vt s16q_t ,
+.Vt u16q_t ,
+.Vt s32q_t ,
+.Vt u32q_t ,
+.Vt s64q_t ,
+and
+.Vt u64q_t ,
+which are referred to generically as
+.Fa QTYPE .
+The
+.Fa ITYPE
+refers to the
+.Xr stdint 7
+integer types.
+.Fa NTYPE
+is used to refer to any numeric type and is therefore a superset of
+.Fa QTYPE
+and
+.Fa ITYPE .
+.Pp
+For more details, see
+.Xr qmath 3 .
+.Sh RETURN VALUES
+The
+.Fn Q_SIGNED ,
+.Fn Q_LTZ ,
+.Fn Q_PRECEQ ,
+.Fn Q_QLTQ ,
+.Fn Q_QLEQ ,
+.Fn Q_QGTQ ,
+.Fn Q_QGEQ ,
+.Fn Q_QEQ ,
+.Fn Q_QNEQ
+and
+.Fn Q_OFLOW
+functions return expressions that evaluate to boolean
+.Vt true
+or
+.Vt false .
+.Pp
+.Fn Q_RELPREC
+returns the relative precision difference as a signed integer.
+.Sh SEE ALSO
+.Xr errno 2 ,
+.Xr qmath 3 ,
+.Xr stdint 7
+.Sh HISTORY
+The
+.Xr qmath 3
+functions first appeared in
+.Fx 13.0 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Xr qmath 3
+functions and this manual page were written by
+.An Lawrence Stewart Aq Mt lstewart@FreeBSD.org
+and sponsored by Netflix, Inc.
diff --git a/static/freebsd/man3/Q_SIGNSHFT.3 b/static/freebsd/man3/Q_SIGNSHFT.3
new file mode 100644
index 00000000..ce355560
--- /dev/null
+++ b/static/freebsd/man3/Q_SIGNSHFT.3
@@ -0,0 +1,145 @@
+.\"
+.\" Copyright (c) 2018 Netflix, Inc.
+.\" All rights reserved.
+.\"
+.\" 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,
+.\"    without modification, immediately at the beginning of the file.
+.\" 2. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd July 8, 2018
+.Dt Q_SIGNSHFT 3
+.Os
+.Sh NAME
+.Nm Q_SIGNSHFT ,
+.Nm Q_SSIGN ,
+.Nm Q_CRAWMASK ,
+.Nm Q_SRAWMASK ,
+.Nm Q_GCRAW ,
+.Nm Q_GCVAL ,
+.Nm Q_SCVAL
+.Nd fixed-point math functions which manipulate the control/sign data bits
+.Sh SYNOPSIS
+.In sys/qmath.h
+.Ft uint32_t
+.Fn Q_SIGNSHFT "QTYPE q"
+.Ft QTYPE
+.Fn Q_SSIGN "QTYPE q" "bool isneg"
+.Ft ITYPE
+.Fn Q_CRAWMASK "QTYPE q"
+.Ft ITYPE
+.Fn Q_SRAWMASK "QTYPE q"
+.Ft ITYPE
+.Fn Q_GCRAW "QTYPE q"
+.Ft ITYPE
+.Fn Q_GCVAL "QTYPE q"
+.Ft QTYPE
+.Fn Q_SCVAL "QTYPE q" "ITYPE cv"
+.Sh DESCRIPTION
+.Fn Q_SIGNSHFT
+gets the bit position of
+.Fa q Ap s
+sign bit relative to bit zero.
+.Pp
+.Fn Q_SSIGN
+sets the sign bit of
+.Fa q
+based on the boolean
+.Fa isneg .
+.Pp
+.Fn Q_CRAWMASK
+and
+.Fn Q_SRAWMASK
+return
+.Fa q Ns -specific
+bit masks for
+.Fa q Ap s
+control bits and sign bit respectively.
+.Pp
+.Fn Q_GCRAW
+and
+.Fn Q_GCVAL
+get the raw masked control bits and value of
+.Fa q Ap s
+control bits respectively.
+.Pp
+.Fn Q_SCVAL
+sets
+.Fa q Ap s
+control bits to the value
+.Fa cv .
+.Pp
+All of those functions operate on
+the following data types:
+.Vt s8q_t ,
+.Vt u8q_t ,
+.Vt s16q_t ,
+.Vt u16q_t ,
+.Vt s32q_t ,
+.Vt u32q_t ,
+.Vt s64q_t ,
+and
+.Vt u64q_t ,
+which are referred to generically as
+.Fa QTYPE .
+The
+.Fa ITYPE
+refers to the
+.Xr stdint 7
+integer types.
+.Pp
+For more details, see
+.Xr qmath 3 .
+.Sh RETURN VALUES
+.Fn Q_SIGNSHFT
+returns the sign bit's position as an integer.
+.Pp
+.Fn Q_SSIGN
+returns the value of
+.Fa q
+post change.
+.Pp
+.Fn Q_CRAWMASK ,
+.Fn Q_SRAWMASK ,
+.Fn Q_GCRAW
+and
+.Fn Q_GCVAL
+return their respective values as integers of the same underlying ITYPE as
+.Fa q .
+.Pp
+.Fn Q_SCVAL
+returns the value of
+.Fa q
+post change.
+.Sh SEE ALSO
+.Xr errno 2 ,
+.Xr qmath 3 ,
+.Xr stdint 7
+.Sh HISTORY
+The
+.Xr qmath 3
+functions first appeared in
+.Fx 13.0 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Xr qmath 3
+functions and this manual page were written by
+.An Lawrence Stewart Aq Mt lstewart@FreeBSD.org
+and sponsored by Netflix, Inc.
diff --git a/static/freebsd/man3/alloca.3 b/static/freebsd/man3/alloca.3
new file mode 100644
index 00000000..9e905d44
--- /dev/null
+++ b/static/freebsd/man3/alloca.3
@@ -0,0 +1,101 @@
+.\" Copyright (c) 1980, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\" Copyright (c) 2026 Aymeric Wibo <obiwac@freebsd.org>
+.\"
+.\" 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.
+.\"
+.Dd February 19, 2026
+.Dt ALLOCA 3
+.Os
+.Sh NAME
+.Nm alloca
+.Nd memory allocator
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft void *
+.Fn alloca "size_t size"
+.Sh DESCRIPTION
+The
+.Fn alloca
+function or macro allocates
+.Fa size
+bytes of space in the stack frame of the caller.
+This temporary space is automatically freed on
+return.
+.Sh RETURN VALUES
+.Fn alloca
+returns a pointer to the beginning of the allocated space.
+.Sh SEE ALSO
+.Xr brk 2 ,
+.Xr calloc 3 ,
+.Xr getpagesize 3 ,
+.Xr malloc 3 ,
+.Xr realloc 3
+.Sh HISTORY
+.Fn alloca
+appeared in
+.At 32v .
+.\" .Bx ?? .
+.\" The function appeared in 32v, pwb and pwb.2 and in 3bsd 4bsd
+.\" The first man page (or link to a man page that I can find at the
+.\" moment is 4.3...
+.Sh BUGS
+.Fn alloca
+is machine and compiler dependent;
+its use is discouraged.
+.Pp
+.Fn alloca
+is slightly unsafe because it cannot ensure that the pointer
+returned points to a valid and usable block of memory.
+The allocation made may exceed the bounds of the stack, or even go
+further into other objects in memory, and
+.Fn alloca
+cannot determine such an error.
+Avoid
+.Fn alloca
+with large unbounded allocations.
+.Pp
+The use of C99 variable-length arrays and
+.Fn alloca
+in the same function will cause the lifetime of
+.Fn alloca Ns 's
+storage to be limited to the block containing the
+.Fn alloca .
+For example, in the following snippet,
+.Va p Ns 's
+lifetime does not extend outside of the block, whereas it would've if
+.Va vla
+hadn't been defined or had been defined as a fixed-length array:
+.Bd -literal -offset indent
+char *p;
+{
+	const int n = 100;
+	int vla[n];
+	p = alloca(32);
+	strcpy(p, "Hello, world!");
+	printf("Inside: %s\\n", p); /* Valid. */
+}
+printf("Outside: %s\\n", p); /* Undefined. */
+.Ed
diff --git a/static/freebsd/man3/arb.3 b/static/freebsd/man3/arb.3
new file mode 100644
index 00000000..e33ef3a3
--- /dev/null
+++ b/static/freebsd/man3/arb.3
@@ -0,0 +1,511 @@
+.\"	$OpenBSD: tree.3,v 1.7 2002/06/12 01:09:20 provos Exp $
+.\"
+.\" Copyright 2002 Niels Provos <provos@citi.umich.edu>
+.\" Copyright 2018-2019 Netflix, Inc.
+.\" All rights reserved.
+.\"
+.\" 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. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"      This product includes software developed by Niels Provos.
+.\" 4. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+.\"
+.Dd October 14, 2019
+.Dt ARB 3
+.Os
+.Sh NAME
+.Nm ARB_PROTOTYPE ,
+.Nm ARB_PROTOTYPE_STATIC ,
+.Nm ARB_PROTOTYPE_INSERT ,
+.Nm ARB_PROTOTYPE_INSERT_COLOR ,
+.Nm ARB_PROTOTYPE_REMOVE ,
+.Nm ARB_PROTOTYPE_REMOVE_COLOR ,
+.Nm ARB_PROTOTYPE_FIND ,
+.Nm ARB_PROTOTYPE_NFIND ,
+.Nm ARB_PROTOTYPE_NEXT ,
+.Nm ARB_PROTOTYPE_PREV ,
+.Nm ARB_PROTOTYPE_MINMAX ,
+.Nm ARB_PROTOTYPE_REINSERT ,
+.Nm ARB_GENERATE ,
+.Nm ARB_GENERATE_STATIC ,
+.Nm ARB_GENERATE_INSERT ,
+.Nm ARB_GENERATE_INSERT_COLOR ,
+.Nm ARB_GENERATE_REMOVE ,
+.Nm ARB_GENERATE_REMOVE_COLOR ,
+.Nm ARB_GENERATE_FIND ,
+.Nm ARB_GENERATE_NFIND ,
+.Nm ARB_GENERATE_NEXT ,
+.Nm ARB_GENERATE_PREV ,
+.Nm ARB_GENERATE_MINMAX ,
+.Nm ARB_GENERATE_REINSERT ,
+.Nm ARB8_ENTRY ,
+.Nm ARB16_ENTRY ,
+.Nm ARB32_ENTRY ,
+.Nm ARB8_HEAD ,
+.Nm ARB16_HEAD ,
+.Nm ARB32_HEAD ,
+.Nm ARB_ALLOCSIZE ,
+.Nm ARB_INITIALIZER ,
+.Nm ARB_ROOT ,
+.Nm ARB_EMPTY ,
+.Nm ARB_FULL ,
+.Nm ARB_CURNODES ,
+.Nm ARB_MAXNODES ,
+.Nm ARB_NEXT ,
+.Nm ARB_PREV ,
+.Nm ARB_MIN ,
+.Nm ARB_MAX ,
+.Nm ARB_FIND ,
+.Nm ARB_NFIND ,
+.Nm ARB_LEFT ,
+.Nm ARB_LEFTIDX ,
+.Nm ARB_RIGHT ,
+.Nm ARB_RIGHTIDX ,
+.Nm ARB_PARENT ,
+.Nm ARB_PARENTIDX ,
+.Nm ARB_GETFREE ,
+.Nm ARB_FREEIDX ,
+.Nm ARB_FOREACH ,
+.Nm ARB_FOREACH_FROM ,
+.Nm ARB_FOREACH_SAFE ,
+.Nm ARB_FOREACH_REVERSE ,
+.Nm ARB_FOREACH_REVERSE_FROM ,
+.Nm ARB_FOREACH_REVERSE_SAFE ,
+.Nm ARB_INIT ,
+.Nm ARB_INSERT ,
+.Nm ARB_REMOVE ,
+.Nm ARB_REINSERT ,
+.Nm ARB_RESET_TREE
+.Nd "array-based red-black trees"
+.Sh SYNOPSIS
+.In sys/arb.h
+.Fn ARB_PROTOTYPE NAME TYPE FIELD CMP
+.Fn ARB_PROTOTYPE_STATIC NAME TYPE FIELD CMP
+.Fn ARB_PROTOTYPE_INSERT NAME TYPE ATTR
+.Fn ARB_PROTOTYPE_INSERT_COLOR NAME TYPE ATTR
+.Fn ARB_PROTOTYPE_REMOVE NAME TYPE ATTR
+.Fn ARB_PROTOTYPE_REMOVE_COLOR NAME TYPE ATTR
+.Fn ARB_PROTOTYPE_FIND NAME TYPE ATTR
+.Fn ARB_PROTOTYPE_NFIND NAME TYPE ATTR
+.Fn ARB_PROTOTYPE_NEXT NAME TYPE ATTR
+.Fn ARB_PROTOTYPE_PREV NAME TYPE ATTR
+.Fn ARB_PROTOTYPE_MINMAX NAME TYPE ATTR
+.Fn ARB_PROTOTYPE_REINSERT NAME TYPE ATTR
+.Fn ARB_GENERATE NAME TYPE FIELD CMP
+.Fn ARB_GENERATE_STATIC NAME TYPE FIELD CMP
+.Fn ARB_GENERATE_INSERT NAME TYPE FIELD CMP ATTR
+.Fn ARB_GENERATE_INSERT_COLOR NAME TYPE FIELD ATTR
+.Fn ARB_GENERATE_REMOVE NAME TYPE FIELD ATTR
+.Fn ARB_GENERATE_REMOVE_COLOR NAME TYPE FIELD ATTR
+.Fn ARB_GENERATE_FIND NAME TYPE FIELD CMP ATTR
+.Fn ARB_GENERATE_NFIND NAME TYPE FIELD CMP ATTR
+.Fn ARB_GENERATE_NEXT NAME TYPE FIELD ATTR
+.Fn ARB_GENERATE_PREV NAME TYPE FIELD ATTR
+.Fn ARB_GENERATE_MINMAX NAME TYPE FIELD ATTR
+.Fn ARB_GENERATE_REINSERT NAME TYPE FIELD CMP ATTR
+.Fn ARB<8|16|32>_ENTRY
+.Fn ARB<8|16|32>_HEAD HEADNAME TYPE
+.Ft "size_t"
+.Fn ARB_ALLOCSIZE "ARB_HEAD *head" "int<8|16|32>_t maxnodes" "struct TYPE *elm"
+.Fn ARB_INITIALIZER "ARB_HEAD *head" "int<8|16|32>_t maxnodes"
+.Ft "struct TYPE *"
+.Fn ARB_ROOT "ARB_HEAD *head"
+.Ft "bool"
+.Fn ARB_EMPTY "ARB_HEAD *head"
+.Ft "bool"
+.Fn ARB_FULL "ARB_HEAD *head"
+.Ft "int<8|16|32>_t"
+.Fn ARB_CURNODES "ARB_HEAD *head"
+.Ft "int<8|16|32>_t"
+.Fn ARB_MAXNODES "ARB_HEAD *head"
+.Ft "struct TYPE *"
+.Fn ARB_NEXT NAME "ARB_HEAD *head" "struct TYPE *elm"
+.Ft "struct TYPE *"
+.Fn ARB_PREV NAME "ARB_HEAD *head" "struct TYPE *elm"
+.Ft "struct TYPE *"
+.Fn ARB_MIN NAME "ARB_HEAD *head"
+.Ft "struct TYPE *"
+.Fn ARB_MAX NAME "ARB_HEAD *head"
+.Ft "struct TYPE *"
+.Fn ARB_FIND NAME "ARB_HEAD *head" "struct TYPE *elm"
+.Ft "struct TYPE *"
+.Fn ARB_NFIND NAME "ARB_HEAD *head" "struct TYPE *elm"
+.Ft "struct TYPE *"
+.Fn ARB_LEFT "struct TYPE *elm" "ARB_ENTRY NAME"
+.Ft "int<8|16|32>_t"
+.Fn ARB_LEFTIDX "struct TYPE *elm" "ARB_ENTRY NAME"
+.Ft "struct TYPE *"
+.Fn ARB_RIGHT "struct TYPE *elm" "ARB_ENTRY NAME"
+.Ft "int<8|16|32>_t"
+.Fn ARB_RIGHTIDX "struct TYPE *elm" "ARB_ENTRY NAME"
+.Ft "struct TYPE *"
+.Fn ARB_PARENT "struct TYPE *elm" "ARB_ENTRY NAME"
+.Ft "int<8|16|32>_t"
+.Fn ARB_PARENTIDX "struct TYPE *elm" "ARB_ENTRY NAME"
+.Ft "struct TYPE *"
+.Fn ARB_GETFREE "ARB_HEAD *head" "FIELD"
+.Ft "int<8|16|32>_t"
+.Fn ARB_FREEIDX "ARB_HEAD *head"
+.Fn ARB_FOREACH VARNAME NAME "ARB_HEAD *head"
+.Fn ARB_FOREACH_FROM "VARNAME" "NAME" "POS_VARNAME"
+.Fn ARB_FOREACH_SAFE "VARNAME" "NAME" "ARB_HEAD *head" "TEMP_VARNAME"
+.Fn ARB_FOREACH_REVERSE VARNAME NAME "ARB_HEAD *head"
+.Fn ARB_FOREACH_REVERSE_FROM "VARNAME" "NAME" "POS_VARNAME"
+.Fn ARB_FOREACH_REVERSE_SAFE "VARNAME" "NAME" "ARB_HEAD *head" "TEMP_VARNAME"
+.Ft void
+.Fn ARB_INIT "struct TYPE *elm" "FIELD" "ARB_HEAD *head" "int<8|16|32>_t maxnodes"
+.Ft "struct TYPE *"
+.Fn ARB_INSERT NAME "ARB_HEAD *head" "struct TYPE *elm"
+.Ft "struct TYPE *"
+.Fn ARB_REMOVE NAME "ARB_HEAD *head" "struct TYPE *elm"
+.Ft "struct TYPE *"
+.Fn ARB_REINSERT NAME "ARB_HEAD *head" "struct TYPE *elm"
+.Ft void
+.Fn ARB_RESET_TREE "ARB_HEAD *head" NAME "int<8|16|32>_t maxnodes"
+.Sh DESCRIPTION
+These macros define data structures for and array-based red-black trees.
+They use a single, continuous chunk of memory, and are useful
+e.g., when the tree needs to be transferred between userspace and kernel.
+.Pp
+In the macro definitions,
+.Fa TYPE
+is the name tag of a user defined structure that must contain a field of type
+.Vt ARB_ENTRY ,
+named
+.Fa ENTRYNAME .
+The argument
+.Fa HEADNAME
+is the name tag of a user defined structure that must be declared
+using the
+.Fn ARB_HEAD
+macro.
+The argument
+.Fa NAME
+has to be a unique name prefix for every tree that is defined.
+.Pp
+The function prototypes are declared with
+.Fn ARB_PROTOTYPE ,
+or
+.Fn ARB_PROTOTYPE_STATIC .
+The function bodies are generated with
+.Fn ARB_GENERATE ,
+or
+.Fn ARB_GENERATE_STATIC .
+See the examples below for further explanation of how these macros are used.
+.Pp
+A red-black tree is a binary search tree with the node color as an
+extra attribute.
+It fulfills a set of conditions:
+.Bl -enum -offset indent
+.It
+Every search path from the root to a leaf consists of the same number of
+black nodes.
+.It
+Each red node (except for the root) has a black parent.
+.It
+Each leaf node is black.
+.El
+.Pp
+Every operation on a red-black tree is bounded as
+.Fn O "lg n" .
+The maximum height of a red-black tree is
+.Fn 2lg "n + 1" .
+.Pp
+.Fn ARB_*
+trees require entries to be allocated as an array, and uses array
+indices to link entries together.
+The maximum number of
+.Fn ARB_*
+tree entries is therefore constrained by the minimum of array size and choice of
+signed integer data type used to store array indices.
+Use
+.Fn ARB_ALLOCSIZE
+to compute the size of memory chunk to allocate.
+.Pp
+A red-black tree is headed by a structure defined by the
+.Fn ARB_HEAD
+macro.
+A
+structure is declared with either of the following:
+.Bd -ragged -offset indent
+.Fn ARB<8|16|32>_HEAD HEADNAME TYPE
+.Va head ;
+.Ed
+.Pp
+where
+.Fa HEADNAME
+is the name of the structure to be defined, and struct
+.Fa TYPE
+is the type of the elements to be inserted into the tree.
+.Pp
+The
+.Fn ARB_HEAD
+variant includes a suffix denoting the signed integer data type size
+.Pq in bits
+used to store array indices.
+For example,
+.Fn ARB_HEAD8
+creates a red-black tree head structure with 8-bit signed array indices capable
+of indexing up to 128 entries.
+.Pp
+The
+.Fn ARB_ENTRY
+macro declares a structure that allows elements to be connected in the tree.
+Similarly to the
+.Fn ARB<8|16|32>_HEAD
+macro, the
+.Fn ARB_ENTRY
+variant includes a suffix denoting the signed integer data type size
+.Pq in bits
+used to store array indices.
+Entries should use the same number of bits as the tree head structure they will
+be linked into.
+.Pp
+In order to use the functions that manipulate the tree structure,
+their prototypes need to be declared with the
+.Fn ARB_PROTOTYPE
+or
+.Fn ARB_PROTOTYPE_STATIC
+macro,
+where
+.Fa NAME
+is a unique identifier for this particular tree.
+The
+.Fa TYPE
+argument is the type of the structure that is being managed
+by the tree.
+The
+.Fa FIELD
+argument is the name of the element defined by
+.Fn ARB_ENTRY .
+Individual prototypes can be declared with
+.Fn ARB_PROTOTYPE_INSERT ,
+.Fn ARB_PROTOTYPE_INSERT_COLOR ,
+.Fn ARB_PROTOTYPE_REMOVE ,
+.Fn ARB_PROTOTYPE_REMOVE_COLOR ,
+.Fn ARB_PROTOTYPE_FIND ,
+.Fn ARB_PROTOTYPE_NFIND ,
+.Fn ARB_PROTOTYPE_NEXT ,
+.Fn ARB_PROTOTYPE_PREV ,
+.Fn ARB_PROTOTYPE_MINMAX ,
+and
+.Fn ARB_PROTOTYPE_REINSERT
+in case not all functions are required.
+The individual prototype macros expect
+.Fa NAME ,
+.Fa TYPE ,
+and
+.Fa ATTR
+arguments.
+The
+.Fa ATTR
+argument must be empty for global functions or
+.Fa static
+for static functions.
+.Pp
+The function bodies are generated with the
+.Fn ARB_GENERATE
+or
+.Fn ARB_GENERATE_STATIC
+macro.
+These macros take the same arguments as the
+.Fn ARB_PROTOTYPE
+and
+.Fn ARB_PROTOTYPE_STATIC
+macros, but should be used only once.
+As an alternative individual function bodies are generated with the
+.Fn ARB_GENERATE_INSERT ,
+.Fn ARB_GENERATE_INSERT_COLOR ,
+.Fn ARB_GENERATE_REMOVE ,
+.Fn ARB_GENERATE_REMOVE_COLOR ,
+.Fn ARB_GENERATE_FIND ,
+.Fn ARB_GENERATE_NFIND ,
+.Fn ARB_GENERATE_NEXT ,
+.Fn ARB_GENERATE_PREV ,
+.Fn ARB_GENERATE_MINMAX ,
+and
+.Fn ARB_GENERATE_REINSERT
+macros.
+.Pp
+Finally,
+the
+.Fa CMP
+argument is the name of a function used to compare tree nodes
+with each other.
+The function takes two arguments of type
+.Vt "struct TYPE *" .
+If the first argument is smaller than the second, the function returns a
+value smaller than zero.
+If they are equal, the function returns zero.
+Otherwise, it should return a value greater than zero.
+The compare
+function defines the order of the tree elements.
+.Pp
+The
+.Fn ARB_INIT
+macro initializes the tree referenced by
+.Fa head ,
+with the array length of
+.Fa maxnodes .
+.Pp
+The red-black tree can also be initialized statically by using the
+.Fn ARB_INITIALIZER
+macro:
+.Bd -ragged -offset indent
+.Fn ARB<8|16|32>_HEAD HEADNAME TYPE
+.Va head
+=
+.Fn ARB_INITIALIZER &head maxnodes ;
+.Ed
+.Pp
+The
+.Fn ARB_INSERT
+macro inserts the new element
+.Fa elm
+into the tree.
+.Pp
+The
+.Fn ARB_REMOVE
+macro removes the element
+.Fa elm
+from the tree pointed by
+.Fa head .
+.Pp
+The
+.Fn ARB_FIND
+and
+.Fn ARB_NFIND
+macros can be used to find a particular element in the tree.
+.Bd -literal -offset indent
+struct TYPE find, *res;
+find.key = 30;
+res = ARB_FIND(NAME, head, &find);
+.Ed
+.Pp
+The
+.Fn ARB_ROOT ,
+.Fn ARB_MIN ,
+.Fn ARB_MAX ,
+.Fn ARB_NEXT ,
+and
+.Fn ARB_PREV
+macros can be used to traverse the tree:
+.Pp
+.Dl "for (np = ARB_MIN(NAME, &head); np != NULL; np = ARB_NEXT(NAME, &head, np))"
+.Pp
+Or, for simplicity, one can use the
+.Fn ARB_FOREACH
+or
+.Fn ARB_FOREACH_REVERSE
+macro:
+.Bd -ragged -offset indent
+.Fn ARB_FOREACH np NAME head
+.Ed
+.Pp
+The macros
+.Fn ARB_FOREACH_SAFE
+and
+.Fn ARB_FOREACH_REVERSE_SAFE
+traverse the tree referenced by head
+in a forward or reverse direction respectively,
+assigning each element in turn to np.
+However, unlike their unsafe counterparts,
+they permit both the removal of np
+as well as freeing it from within the loop safely
+without interfering with the traversal.
+.Pp
+Both
+.Fn ARB_FOREACH_FROM
+and
+.Fn ARB_FOREACH_REVERSE_FROM
+may be used to continue an interrupted traversal
+in a forward or reverse direction respectively.
+The head pointer is not required.
+The pointer to the node from where to resume the traversal
+should be passed as their last argument,
+and will be overwritten to provide safe traversal.
+.Pp
+The
+.Fn ARB_EMPTY
+macro should be used to check whether a red-black tree is empty.
+.Pp
+Given that ARB trees have an intrinsic upper bound on the number of entries,
+some ARB-specific additional macros are defined.
+The
+.Fn ARB_FULL
+macro returns a boolean indicating whether the current number of tree entries
+equals the tree's maximum.
+The
+.Fn ARB_CURNODES
+and
+.Fn ARB_MAXNODES
+macros return the current and maximum number of entries respectively.
+The
+.Fn ARB_GETFREE
+macro returns a pointer to the next free entry in the array of entries, ready to
+be linked into the tree.
+The
+.Fn ARB_INSERT
+returns
+.Dv NULL
+if the element was inserted in the tree successfully, otherwise they
+return a pointer to the element with the colliding key.
+.Pp
+Accordingly,
+.Fn ARB_REMOVE
+returns the pointer to the removed element otherwise they return
+.Dv NULL
+to indicate an error.
+.Pp
+The
+.Fn ARB_REINSERT
+macro updates the position of the element
+.Fa elm
+in the tree.
+This must be called if a member of a
+.Nm tree
+is modified in a way that affects comparison, such as by modifying
+a node's key.
+This is a lower overhead alternative to removing the element
+and reinserting it again.
+.Pp
+The
+.Fn ARB_RESET_TREE
+macro discards the tree topology.
+It does not modify embedded object values or the free list.
+.Sh SEE ALSO
+.Xr queue 3 ,
+.Xr tree 3
+.Sh HISTORY
+The
+.Nm ARB
+macros first appeared in
+.Fx 13.0 .
+.Sh AUTHORS
+The
+.Nm ARB
+macros were implemented by
+.An Lawrence Stewart Aq Mt lstewart@FreeBSD.org ,
+based on
+.Xr tree 3
+macros written by
+.An Niels Provos .
diff --git a/static/freebsd/man3/assert.3 b/static/freebsd/man3/assert.3
new file mode 100644
index 00000000..f219aa1d
--- /dev/null
+++ b/static/freebsd/man3/assert.3
@@ -0,0 +1,136 @@
+.\" Copyright (c) 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" 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.
+.\"
+.Dd April 20, 2021
+.Dt ASSERT 3
+.Os
+.Sh NAME
+.Nm assert ,
+.Nm static_assert
+.Nd expression verification macro
+.Sh SYNOPSIS
+.In assert.h
+.Fn assert expression
+.Fn static_assert expression
+.Fn static_assert expression message
+.Sh DESCRIPTION
+The
+.Fn assert
+macro tests the given
+.Ar expression
+and if it is false,
+the calling process is terminated.
+A diagnostic message is written to
+.Dv stderr
+and the function
+.Xr abort 3
+is called, effectively terminating the program.
+.Pp
+If
+.Ar expression
+is true,
+the
+.Fn assert
+macro does nothing.
+.Pp
+The
+.Fn assert
+macro
+may be removed at compile time by defining
+.Dv NDEBUG
+as a macro
+(e.g., by using the
+.Xr cc 1
+option
+.Fl D Ns Dv NDEBUG ) .
+Unlike most other include files,
+.In assert.h
+may be included multiple times.
+Each time whether or not
+.Dv NDEBUG
+is defined determines the behavior of assert from that point forward
+until the end of the unit or another include of
+.In assert.h .
+.Pp
+The
+.Fn assert
+macro should only be used for ensuring the developer's expectations
+hold true.
+It is not appropriate for regular run-time error detection.
+.Pp
+The
+.Fn static_assert
+macro expands to
+.Fn _Static_assert ,
+and, contrarily to
+.Fn assert ,
+makes assertions at compile-time.
+Once the constraint is violated, the compiler produces a diagnostic
+message including the string literal message, if provided.
+The initial form of the
+.Fn _Static_assert
+containing a string literal message was introduced in C11 standard, and
+the other form with no string literal is to be implemented by C2x and
+some compilers may lack its adoption at present.
+.Sh EXAMPLES
+The assertion:
+.Dl "assert(1 == 0);"
+generates a diagnostic message similar to the following:
+.Dl "Assertion failed: (1 == 0), function main, file main.c, line 100."
+.Pp
+The following assert tries to assert there was no partial read:
+.Dl "assert(read(fd, buf, nbytes) == nbytes);"
+However, there are two problems.
+First, it checks for normal conditions, rather than conditions that
+indicate a bug.
+Second, the code will disappear if
+.Dv NDEBUG
+is defined, changing the semantics of the program.
+.Pp
+The following asserts that the size of the S structure is 16.
+Otherwise, it produces a diagnostic message which points at the
+constraint and includes the provided string literal:
+.Dl "static_assert(sizeof(struct S) == 16, ""size mismatch"");"
+If none is provided, it only points at the constraint.
+.Sh SEE ALSO
+.Xr abort2 2 ,
+.Xr abort 3
+.Sh STANDARDS
+The
+.Fn assert
+macro conforms to
+.St -isoC-99 .
+.Pp
+The
+.Fn static_assert
+macro conforms to
+.St -isoC-2011 .
+.Sh HISTORY
+An
+.Nm
+macro appeared in
+.At v7 .
diff --git a/static/freebsd/man3/bitstring.3 b/static/freebsd/man3/bitstring.3
new file mode 100644
index 00000000..87ba9a24
--- /dev/null
+++ b/static/freebsd/man3/bitstring.3
@@ -0,0 +1,470 @@
+.\" Copyright (c) 1989, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Paul Vixie.
+.\" 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.
+.\"
+.\" Copyright (c) 2014,2016 Spectra Logic Corporation
+.\" All rights reserved.
+.\"
+.\" 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,
+.\"    without modification.
+.\" 2. Redistributions in binary form must reproduce at minimum a disclaimer
+.\"    substantially similar to the "NO WARRANTY" disclaimer below
+.\"    ("Disclaimer") and any redistribution must be conditioned upon
+.\"    including a substantially similar Disclaimer requirement for further
+.\"    binary redistribution.
+.\"
+.\" NO WARRANTY
+.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+.\" "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+.\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+.\" A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+.\" HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
+.\"
+.Dd November 21, 2023
+.Dt BITSTRING 3
+.Os
+.Sh NAME
+.Nm bit_alloc ,
+.Nm bit_clear ,
+.Nm bit_count ,
+.Nm bit_decl ,
+.Nm bit_ffc ,
+.Nm bit_ffs ,
+.Nm bit_ff_at ,
+.Nm bit_ffc_at ,
+.Nm bit_ffs_at ,
+.Nm bit_ffc_area ,
+.Nm bit_ffs_area ,
+.Nm bit_ff_area_at ,
+.Nm bit_ffc_area_at ,
+.Nm bit_ffs_area_at ,
+.Nm bit_nclear ,
+.Nm bit_nset ,
+.Nm bit_ntest ,
+.Nm bit_set ,
+.Nm bit_test ,
+.Nm bitstr_size
+.Nd bit-string manipulation functions and macros
+.Sh SYNOPSIS
+.In bitstring.h
+.Ft bitstr_t *
+.Fn bit_alloc "size_t nbits"
+.Ft void
+.Fn bit_decl "bitstr_t *name" "size_t nbits"
+.Ft void
+.Fn bit_clear "bitstr_t *name" "size_t bit"
+.Ft void
+.Fn bit_count "bitstr_t *name" "size_t count" "size_t nbits" "ssize_t *value"
+.Ft void
+.Fn bit_ffc "bitstr_t *name" "size_t nbits" "ssize_t *value"
+.Ft void
+.Fn bit_ffs "bitstr_t *name" "size_t nbits" "ssize_t *value"
+.Ft void
+.Fn bit_ffc_at "bitstr_t *name" "size_t start" "size_t nbits" "ssize_t *value"
+.Ft void
+.Fn bit_ffs_at "bitstr_t *name" "size_t start" "size_t nbits" "ssize_t *value"
+.Ft void
+.Fn bit_ff_at "bitstr_t *name" "size_t start" "size_t nbits" "int match" "ssize_t *value"
+.Ft void
+.Fn bit_ffc_area "bitstr_t *name" "size_t nbits" "size_t size" "ssize_t *value"
+.Ft void
+.Fn bit_ffs_area "bitstr_t *name" "size_t nbits" "size_t size" "ssize_t *value"
+.Ft void
+.Fn bit_ffc_area_at "bitstr_t *name" "size_t start" "size_t nbits" "size_t size" "ssize_t *value"
+.Ft void
+.Fn bit_ffs_area_at "bitstr_t *name" "size_t start" "size_t nbits" "size_t size" "ssize_t *value"
+.Ft void
+.Fn bit_ff_area_at "bitstr_t *name" "size_t start" "size_t nbits" "size_t size" "int match" "ssize_t *value"
+.Fn bit_foreach "bitstr_t *name" "size_t nbits" "size_t var"
+.Fn bit_foreach_at "bitstr_t *name" "size_t start" "size_t nbits" "size_t var"
+.Fn bit_foreach_unset "bitstr_t *name" "size_t nbits" "size_t var"
+.Fn bit_foreach_unset_at "bitstr_t *name" "size_t start" "size_t nbits" "size_t var"
+.Ft void
+.Fn bit_nclear "bitstr_t *name" "size_t start" "size_t stop"
+.Ft void
+.Fn bit_nset "bitstr_t *name" "size_t start" "size_t stop"
+.Ft int
+.Fn bit_ntest "bitstr_t *name" "size_t start" "size_t stop" "int match"
+.Ft void
+.Fn bit_set "bitstr_t *name" "size_t bit"
+.Ft int
+.Fn bitstr_size "size_t nbits"
+.Ft int
+.Fn bit_test "bitstr_t *name" "size_t bit"
+.Sh DESCRIPTION
+These macros operate on strings of bits.
+.Pp
+The function
+.Fn bit_alloc
+returns a pointer of type
+.Dq Fa "bitstr_t *"
+to sufficient space to store
+.Fa nbits
+bits, or
+.Dv NULL
+if no space is available.
+If successful, the returned bit string is initialized with all bits cleared.
+.Pp
+The macro
+.Fn bit_decl
+declares a bit string with sufficient space to store
+.Fa nbits
+bits.
+.Fn bit_decl
+may be used to include statically sized bit strings in structure
+definitions or to create bit strings on the stack.
+Users of this macro are responsible for initialization of the bit string,
+typically via a global initialization of the containing struct or use of the
+.Fn bit_nset
+or
+.Fn bin_nclear
+functions.
+.Pp
+The macro
+.Fn bitstr_size
+returns the number of bytes necessary to store
+.Fa nbits
+bits.
+This is useful for copying bit strings.
+.Pp
+The functions
+.Fn bit_clear
+and
+.Fn bit_set
+clear or set the zero-based numbered bit
+.Fa bit ,
+in the bit string
+.Ar name .
+.Pp
+The
+.Fn bit_nset
+and
+.Fn bit_nclear
+functions
+set or clear the zero-based numbered bits from
+.Fa start
+through
+.Fa stop
+in the bit string
+.Ar name .
+.Pp
+The
+.Fn bit_test
+function
+evaluates to non-zero if the zero-based numbered bit
+.Fa bit
+of bit string
+.Fa name
+is set, and zero otherwise.
+.Pp
+The
+.Fn bit_ntest
+function
+evaluates to non-zero if the zero-based numbered bits from
+.Fa start
+through
+.Fa stop
+in the bit string
+.Ar name
+all have the value
+.Ar match .
+.Pp
+The function
+.Fn bit_ffc
+stores in the location referenced by
+.Fa value
+the zero-based number of the first bit not set in the array of
+.Fa nbits
+bits referenced by
+.Fa name .
+If all bits are set, the location referenced by
+.Fa value
+is set to \-1.
+.Pp
+The
+.Fn bit_ffs
+function
+stores in the location referenced by
+.Fa value
+the zero-based number of the first bit set in the array of
+.Fa nbits
+bits referenced by
+.Fa name .
+If no bits are set, the location referenced by
+.Fa value
+is set to \-1.
+.Pp
+The function
+.Fn bit_ffc_at
+stores in the location referenced by
+.Fa value
+the zero-based number of the first bit not set in the array of
+.Fa nbits
+bits referenced by
+.Fa name ,
+at or after the zero-based bit index
+.Fa start .
+If all bits at or after
+.Fa start
+are set, the location referenced by
+.Fa value
+is set to \-1.
+.Pp
+The
+.Fn bit_ffs_at
+function
+stores in the location referenced by
+.Fa value
+the zero-based number of the first bit set in the array of
+.Fa nbits
+bits referenced by
+.Fa name ,
+at or after the zero-based bit index
+.Fa start .
+If no bits are set after
+.Fa start ,
+the location referenced by
+.Fa value
+is set to \-1.
+.Pp
+The
+.Fn bit_ff_at
+function
+stores in the location referenced by
+.Fa value
+the zero-based number of the first bit in the array of
+.Fa nbits
+bits referenced by
+.Fa name ,
+at or after the zero-based bit index
+.Fa start
+that has value
+.Fa match .
+If no bits after
+.Fa start
+match that value, the location referenced by
+.Fa value
+is set to \-1.
+.Pp
+The
+.Fn bit_ffc_area
+function stores in the location referenced by
+.Fa value
+the zero-based number of the first bit beginning a sequence of unset bits of
+at least
+.Fa size
+unset bits in the array of
+.Fa nbits
+bits referenced by
+.Fa name .
+If no sequence of contiguous unset bits of the specified
+.Fa size
+can be found, the location referenced by
+.Fa value
+is set to \-1.
+.Pp
+The
+.Fn bit_ffs_area
+function stores in the location referenced by
+.Fa value
+the zero-based number of the first bit beginning a sequence of set bits of
+at least
+.Fa size
+set bits in the array of
+.Fa nbits
+bits referenced by
+.Fa name .
+If no sequence of contiguous set bits of the specified
+.Fa size
+can be found, the location referenced by
+.Fa value
+is set to \-1.
+.Pp
+The
+.Fn bit_ffc_area_at
+function stores in the location referenced by
+.Fa value
+the zero-based number of the first bit beginning a sequence of unset bits of
+at least
+.Fa size
+unset bits in the array of
+.Fa nbits
+bits referenced by
+.Fa name ,
+at or after the zero-based bit index
+.Fa start .
+If no sequence of contiguous unset bits of the specified
+.Fa size
+can be found at or after
+.Fa start ,
+the location referenced by
+.Fa value
+is set to \-1.
+.Pp
+The
+.Fn bit_ffs_area_at
+function stores in the location referenced by
+.Fa value
+the zero-based number of the first bit beginning a sequence of set bits of
+at least
+.Fa size
+set bits in the array of
+.Fa nbits
+bits referenced by
+.Fa name ,
+at or after the zero-based bit index
+.Fa start .
+If no sequence of contiguous set bits of the specified
+.Fa size
+can be found at or after
+.Fa start ,
+the location referenced by
+.Fa value
+is set to \-1.
+.Pp
+The
+.Fn bit_ff_area_at
+function stores in the location referenced by
+.Fa value
+the zero-based number of the first bit beginning a sequence of bits of
+at least
+.Fa size
+bits in the array of
+.Fa nbits
+bits referenced by
+.Fa name ,
+at or after the zero-based bit index
+.Fa start
+in which all bits have the value
+.Fa match .
+If no sequence of contiguous such bits of the specified
+.Fa size
+can be found at or after
+.Fa start ,
+the location referenced by
+.Fa value
+is set to \-1.
+.Pp
+The
+.Fn bit_count
+function stores in the location referenced by
+.Fa value
+the number of bits set in the array of
+.Fa nbits
+bits referenced by
+.Fa name ,
+at or after the zero-based bit index
+.Fa start .
+.Pp
+The macro
+.Fn bit_foreach
+traverses all set bits in the array of
+.Fa nbits
+referenced by
+.Fa name
+in the forward direction, assigning each location in turn to
+.Fa var .
+.Pp
+The macro
+.Fn bit_foreach_at
+traverses all set bits in the array of
+.Fa nbits
+referenced by
+.Fa name
+in the forward direction at or after the zero-based bit index
+.Fa start ,
+assigning each location in turn to
+.Fa var .
+.Pp
+The macro
+.Fn bit_foreach_unset
+traverses all unset bits in the array of
+.Fa nbits
+referenced by
+.Fa name
+in the forward direction, assigning each location in turn to
+.Fa var .
+.Pp
+The macro
+.Fn bit_foreach_unset_at
+traverses all unset bits in the array of
+.Fa nbits
+referenced by
+.Fa name
+in the forward direction at or after the zero-based bit index
+.Fa start ,
+assigning each location in turn to
+.Fa var .
+.Pp
+The arguments in bit string macros are evaluated only once and may safely
+have side effects.
+.Sh EXAMPLES
+.Bd -literal -offset indent
+#include <limits.h>
+#include <bitstring.h>
+
+\&...
+#define	LPR_BUSY_BIT		0
+#define	LPR_FORMAT_BIT		1
+#define	LPR_DOWNLOAD_BIT	2
+\&...
+#define	LPR_AVAILABLE_BIT	9
+#define	LPR_MAX_BITS		10
+
+make_lpr_available()
+{
+	bitstr_t bit_decl(bitlist, LPR_MAX_BITS);
+	...
+	bit_nclear(bitlist, 0, LPR_MAX_BITS - 1);
+	...
+	if (!bit_test(bitlist, LPR_BUSY_BIT)) {
+		bit_clear(bitlist, LPR_FORMAT_BIT);
+		bit_clear(bitlist, LPR_DOWNLOAD_BIT);
+		bit_set(bitlist, LPR_AVAILABLE_BIT);
+	}
+}
+.Ed
+.Sh SEE ALSO
+.Xr malloc 3 ,
+.Xr stdbit 3 ,
+.Xr bitset 9
+.Sh HISTORY
+The
+.Nm bitstring
+functions first appeared in
+.Bx 4.4 .
diff --git a/static/freebsd/man3/end.3 b/static/freebsd/man3/end.3
new file mode 100644
index 00000000..53800342
--- /dev/null
+++ b/static/freebsd/man3/end.3
@@ -0,0 +1,76 @@
+.\" Copyright (c) 1986
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" 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.
+.\"
+.Dd August 28, 2000
+.Dt END 3
+.Os
+.Sh NAME
+.Nm end ,
+.Nm etext ,
+.Nm edata
+.Nd end boundaries of image segments
+.Sh SYNOPSIS
+.Vt extern end ;
+.Vt extern etext ;
+.Vt extern edata ;
+.Sh DESCRIPTION
+The globals
+.Va end , etext
+and
+.Va edata
+are program segment end addresses.
+.Pp
+.Va etext
+is the first address after the end of the text segment.
+.Pp
+.Va edata
+is the first address after the end of the initialized data segment.
+.Pp
+.Va end
+is the first address after the end of the data segment
+.Pq Tn BSS
+when the program is loaded.
+Use the
+.Xr sbrk 2
+.\".Fn sbrk 0
+system call with zero as its argument to find the current end of the
+data segment.
+.Sh SEE ALSO
+.Xr sbrk 2 ,
+.Xr malloc 3 ,
+.Xr a.out 5
+.Sh HISTORY
+An
+.Nm
+manual page appeared in
+.At v6 .
+.Sh BUGS
+Traditionally, no variable existed that pointed to the start of the
+text segment because the text segment always started at address zero.
+Although it is no longer valid to make this assumption, no
+variable similar to the ones documented above exists to point to the
+start of the text segment.
diff --git a/static/freebsd/man3/fpgetround.3 b/static/freebsd/man3/fpgetround.3
new file mode 100644
index 00000000..c827122e
--- /dev/null
+++ b/static/freebsd/man3/fpgetround.3
@@ -0,0 +1,173 @@
+.\" Copyright (c) 1993 Andrew Moore, Talke Studio
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.Dd December 3, 2010
+.Dt FPGETROUND 3
+.Os
+.Sh NAME
+.Nm fpgetround ,
+.Nm fpsetround ,
+.Nm fpsetprec ,
+.Nm fpgetprec ,
+.Nm fpgetmask ,
+.Nm fpsetmask ,
+.Nm fpgetsticky ,
+.Nm fpresetsticky
+.Nd IEEE floating point interface
+.Sh SYNOPSIS
+.In ieeefp.h
+.Bd -literal
+typedef enum {
+	FP_RN,		/* round to nearest */
+	FP_RM,		/* round down to minus infinity */
+	FP_RP,		/* round up to plus infinity */
+	FP_RZ		/* truncate */
+} fp_rnd_t;
+.Ed
+.Ft fp_rnd_t
+.Fn fpgetround void
+.Ft fp_rnd_t
+.Fn fpsetround "fp_rnd_t direction"
+.Bd -literal
+typedef enum {
+	FP_PS,		/* 24 bit (single-precision) */
+	FP_PRS,		/* reserved */
+	FP_PD,		/* 53 bit (double-precision) */
+	FP_PE		/* 64 bit (extended-precision) */
+} fp_prec_t;
+.Ed
+.Ft fp_prec_t
+.Fn fpgetprec void
+.Ft fp_prec_t
+.Fn fpsetprec "fp_prec_t precision"
+.Bd -literal
+#define fp_except_t	int
+#define FP_X_INV	0x01	/* invalid operation */
+#define FP_X_DNML	0x02	/* denormal */
+#define FP_X_DZ		0x04	/* zero divide */
+#define FP_X_OFL	0x08	/* overflow */
+#define FP_X_UFL	0x10	/* underflow */
+#define FP_X_IMP	0x20	/* (im)precision */
+#define FP_X_STK	0x40	/* stack fault */
+.Ed
+.Ft fp_except_t
+.Fn fpgetmask void
+.Ft fp_except_t
+.Fn fpsetmask "fp_except_t mask"
+.Ft fp_except_t
+.Fn fpgetsticky void
+.Ft fp_except_t
+.Fn fpresetsticky "fp_except_t sticky"
+.Sh DESCRIPTION
+The routines described herein are deprecated.
+New code should use the functionality provided by
+.Xr fenv 3 .
+.Pp
+When a floating point exception is detected, the exception sticky flag is
+set and the exception mask is tested.
+If the mask is set, then a trap
+occurs.
+These routines allow both setting the floating point exception
+masks, and resetting the exception sticky flags after an exception is
+detected.
+In addition, they allow setting the floating point rounding mode
+and precision.
+.Pp
+The
+.Fn fpgetround
+function
+returns the current floating point rounding mode.
+.Pp
+The
+.Fn fpsetround
+function
+sets the floating point rounding mode and returns
+the previous mode.
+.Pp
+The
+.Fn fpgetprec
+function
+returns the current floating point precision.
+.Pp
+The
+.Fn fpsetprec
+function
+sets the floating point precision and returns
+the previous precision.
+.Pp
+The
+.Fn fpgetmask
+function
+returns the current floating point exception masks.
+.Pp
+The
+.Fn fpsetmask
+function
+sets the floating point exception masks and returns the
+previous masks.
+.Pp
+The
+.Fn fpgetsticky
+function
+returns the current floating point sticky flags.
+.Pp
+The
+.Fn fpresetsticky
+function
+clears the floating point sticky flags and returns
+the previous flags.
+.Pp
+Sample code which prevents a trap on divide-by-zero:
+.Bd -literal -offset indent
+fpsetmask(~FP_X_DZ);
+a = 1.0;
+b = 0;
+c = a / b;
+fpresetsticky(FP_X_DZ);
+fpsetmask(FP_X_DZ);
+.Ed
+.Sh IMPLEMENTATION NOTES
+The
+.Fn fpgetprec
+and
+.Fn fpsetprec
+functions provide functionality unavailable on many platforms.
+At present, they are implemented only on the i386 and amd64 platforms.
+Changing precision is not a supported feature:
+it may be ineffective when code is compiled to take advantage of SSE,
+and many library functions and compiler optimizations depend upon the
+default precision for correct behavior.
+.Sh SEE ALSO
+.Xr fenv 3 ,
+.Xr isnan 3
+.Sh HISTORY
+These routines are based on SysV/386 routines of the same name.
+.Sh CAVEATS
+After a floating point exception and before a mask is set, the sticky
+flags must be reset.
+If another exception occurs before the sticky
+flags are reset, then a wrong exception type may be signaled.
diff --git a/static/freebsd/man3/intro.3 b/static/freebsd/man3/intro.3
new file mode 100644
index 00000000..952183d7
--- /dev/null
+++ b/static/freebsd/man3/intro.3
@@ -0,0 +1,384 @@
+.\" Copyright (c) 1980, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" 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.
+.Dd November 10, 2025
+.Dt INTRO 3
+.Os
+.Sh NAME
+.Nm intro
+.Nd introduction to the C libraries
+.Sh SYNOPSIS
+.Nm cc
+.Op Ar flags
+.Ar
+.Op Fl llibrary
+.Sh DESCRIPTION
+This section provides an overview of the C
+library functions, their error returns and other
+common definitions and concepts.
+Most of these functions are available from the C library,
+.Em libc .
+Other libraries, such as the math library,
+.Em libm ,
+must be indicated at compile time with the
+.Fl l
+option of the compiler.
+.Pp
+The various libraries (followed by the loader flag):
+.Bl -tag -width "libbluetooth"
+.It Em libbluetooth
+.Pq Fl l Ns Ar bluetooth
+The bluetooth library.
+See
+.Xr bluetooth 3 .
+.It Em libc
+.Pq Fl l Ns Ar c
+Standard C library functions.
+When using the C compiler
+.Xr cc 1 ,
+it is not necessary
+to supply the loader flag
+.Fl l Ns Ar c
+for these functions.
+There are several `libraries' or groups of functions included inside of
+.Em libc :
+.Bl -tag -width "XXXXXX"
+.It standard I/O routines
+see
+.Xr stdio 3
+.It database routines
+see
+.Xr db 3
+.It bit string operators
+see
+.Xr bitstring 3
+.It bit and byte utilities
+see
+.Xr stdbit 3
+.It string operators
+see
+.Xr string 3
+and
+.Xr bstring 3
+.It character tests and character operators
+see
+.Xr ctype 3
+.It storage allocation
+see
+.Xr mpool 3
+.It regular-expressions
+see
+.Xr regex 3
+.It remote procedure calls (RPC)
+see
+.Xr rpc 3
+.It time functions
+see
+.Xr time 3
+.It signal handling
+see
+.Xr signal 3
+.El
+.It Em libcalendar
+.Pq Fl l Ns Ar calendar
+The calendar arithmetic library.
+See
+.Xr calendar 3 .
+.It Em libcam
+.Pq Fl l Ns Ar cam
+The common access method user library.
+See
+.Xr cam 3 .
+.It Em libcrypt
+.Pq Fl l Ns Ar crypt
+The crypt library.
+See
+.Xr crypt 3 .
+.It Em libcurses
+.Pq Fl l Ns Ar curses Fl l Ns Ar termcap
+Terminal independent screen management routines
+for two dimensional non-bitmap display terminals.
+See
+.Xr ncurses 3 .
+.It Em libcuse
+.Pq Fl l Ns Ar cuse
+The userland character device library.
+See
+.Xr cuse 3 .
+.It Em libcompat
+.Pq Fl l Ns Ar compat
+Functions which are obsolete but are available for compatibility with
+.Bx 4.3 .
+In particular,
+a number of system call interfaces provided in previous releases of
+.Bx
+have been included for source code compatibility.
+Use of these routines should, for the most part, be avoided.
+The manual page entry for each compatibility routine
+indicates the proper interface to use.
+.It Em libdevinfo
+.Pq Fl l Ns Ar devinfo
+The Device and Resource Information Utility library.
+See
+.Xr devinfo 3 .
+.It Em libdevstat
+.Pq Fl l Ns Ar devstat
+The Device Statistics library.
+See
+.Xr devstat 3 .
+.It Em libdwarf
+.Pq Fl l Ns Ar dwarf
+The DWARF access library.
+See
+.Xr dwarf 3 .
+.It Em libelf
+.Pq Fl l Ns Ar elf
+The ELF access library.
+See
+.Xr elf 3 .
+.It Em libfetch
+.Pq Fl l Ns Ar fetch
+The file transfer library.
+See
+.Xr fetch 3 .
+.It Em libfigpar
+.Pq Fl l Ns Ar figpar
+The configuration file parsing library.
+See
+.Xr figpar 3 .
+.It Em libgpio
+.Pq Fl l Ns Ar gpio
+The general-purpose input output library (GPIO).
+See
+.Xr gpio 3 .
+.It Em libgssapi
+.Pq Fl l Ns Ar gssapi
+The generic security service application programming
+interface.
+See
+.Xr gssapi 3 .
+.It Em libjail
+.Pq Fl l Ns Ar jail
+The jail library.
+See
+.Xr jail 3 .
+.It Em libkvm
+.Pq Fl l Ns Ar kvm
+Functions used to access kernel memory are in this library.
+They can be used
+against both a running system and a crash dump.
+See
+.Xr kvm 3 .
+.It Em libl
+.Pq Fl l Ns Ar l
+The library for
+.Xr lex 1 .
+.It Em libm
+.Pq Fl l Ns Ar m
+The math library.
+See
+.Xr math 3 .
+.It Em libmd
+.Pq Fl l Ns Ar md
+The message digest library.
+See
+.Xr md4 3 ,
+.Xr md5 3 ,
+.Xr sha 3 ,
+.Xr sha256 3 ,
+.Xr sha512 3 ,
+.Xr ripemd 3 ,
+.Xr skein 3 .
+.It Em libmp
+.Pq Fl l Ns Ar mp
+.It Em libpam
+.Pq Fl l Ns Ar pam
+The pluggable authentication module library.
+See
+.Xr pam 3 .
+.It Em libpcap
+.Pq Fl l Ns Ar pcap
+The packet capture library.
+See
+.Xr pcap 3 .
+.It Em libpmc
+.Pq Fl l Ns Ar pmc
+The performance counters library.
+See
+.Xr pmc 3 .
+.It Em libpthread
+.Pq Fl l Ns Ar pthread
+The POSIX threads library.
+See
+.Xr pthread 3 .
+.It Em libstdthreads
+.Pq Fl l Ns Ar stdthreads
+The ISO C11 standard
+.In threads.h
+library.
+See
+.Xr thrd_create 3 .
+.It Em libsysdecode
+.Pq Fl l Ns Ar sysdecode
+The system argument decoding library.
+See
+.Xr sysdecode 3 .
+.It Em libtermcap
+.Pq Fl l Ns Ar termcap
+The terminal independent operation library package.
+See
+.Xr termcap 3 .
+.It Em libusb
+.Pq Fl l Ns Ar usb
+The USB access library.
+See
+.Xr usb 3 .
+.It Em libvgl
+.Pq Fl l Ns Ar vgl
+The video graphics library.
+See
+.Xr vgl 3 .
+.It Em liby
+.Pq Fl l Ns Ar y
+The library for
+.Xr yacc 1 .
+.It Em libz
+.Pq Fl l Ns Ar z
+The general-purpose data compression library.
+See
+.Xr zlib 3 .
+.El
+.Sh FILES
+.Bl -tag -width /usr/lib/libm_p.a -compact
+.It Pa /usr/lib/libc.a
+the C library
+.It Pa /usr/lib/libm.a
+the math library
+.El
+.Sh LIBRARY TYPES
+The system libraries are located in
+.Pa /lib
+and
+.Pa /usr/lib .
+A library has the following naming convention:
+.Bd -unfilled -offset indent
+libc.so.7
+.Ed
+.Pp
+Libraries with an
+.Sq .a
+suffix are static.
+When a program is linked against a static library, all necessary library code
+will be included in the binary.
+This means the binary can be run even when the libraries are unavailable.
+However, it can be inefficient with both disk space and memory usage
+during execution.
+The C compiler,
+.Xr cc 1 ,
+can be instructed to link statically by specifying the
+.Fl static
+flag.
+.Pp
+Libraries with a
+.Sq .so.X
+suffix are dynamic libraries.
+When code is linked dynamically, the library code that the application needs
+is not included in the binary.
+Instead, data structures are added containing information about which dynamic
+libraries to link with.
+When the binary is executed, the run-time linker
+.Xr ld.so 1
+reads these data structures and loads them into the
+process virtual address space.
+.Xr rtld 1
+loads the shared libraries when the program is executed.
+.Pp
+.Sq X
+represents the library version number of the library.
+In the example above, a binary linked with
+.Pa libc.so.8
+would not be usable on a system where only
+.Pa libc.so.7
+is available.
+.Pp
+The advantages of dynamic libraries are that multiple instances of the same
+library can share address space, and the physical size of the binary is
+smaller.
+A namespace per shared library is available via hidden visibility,
+allowing multiple compilation units in a library to share things without
+making them available to other libraries.
+It is possible to load libraries dynamically via
+.Xr dlopen 3 .
+The disadvantage is the added complexity that comes with loading the
+libraries dynamically, and the extra time taken to load the libraries.
+Of course, if the libraries are not available, the binary will be unable
+to execute.
+Calls across shared libraries are also slightly slower and cannot be
+inlined, not even with link time optimization.
+The C compiler,
+.Xr cc 1 ,
+can be instructed to link dynamically by specifying the
+.Fl shared
+flag.
+.Pp
+Shared libraries, as well as static libraries on architectures which produce
+position-independent executables
+.Pq PIEs
+by default, contain position-independent code
+.Pq PIC .
+Normally, compilers produce relocatable code.
+Relocatable code needs to be modified at run-time, depending on where in
+memory it is to be run.
+The C compiler,
+.Xr cc 1 ,
+can be instructed to generate PIC code by specifying the
+.Fl fPIC
+flag.
+.Pp
+Static libraries are generated using the
+.Xr ar 1
+utility.
+The libraries contain an index to the contents of the library,
+stored within the library itself.
+The index lists each symbol defined by a member of a library that is a
+relocatable object file.
+This speeds up linking to the library, and allows routines in the library
+to call each other regardless of their placement within the library.
+.Sh SEE ALSO
+.Xr ar 1 ,
+.Xr cc 1 ,
+.Xr ld 1 ,
+.Xr nm 1 ,
+.Xr intro 2 ,
+.Xr math 3 ,
+.Xr stdio 3 ,
+.Xr make.conf 5 ,
+.Xr src.conf 5
+.Sh HISTORY
+An
+.Nm
+manual appeared in
+.At v7 .
diff --git a/static/freebsd/man3/makedev.3 b/static/freebsd/man3/makedev.3
new file mode 100644
index 00000000..3c0e176a
--- /dev/null
+++ b/static/freebsd/man3/makedev.3
@@ -0,0 +1,100 @@
+.\" Copyright (c) 2008 Ed Schouten <ed@FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd August 3, 2017
+.Dt MAKEDEV 3
+.Os
+.Sh NAME
+.Nm makedev ,
+.Nm major ,
+.Nm minor
+.Nd device number conversion
+.Sh SYNOPSIS
+.In sys/types.h
+.Ft dev_t
+.Fn makedev "int major" "int minor"
+.Ft int
+.Fn major "dev_t dev"
+.Ft int
+.Fn minor "dev_t dev"
+.Sh DESCRIPTION
+The
+.Fn makedev
+macro returns a device number created from the provided
+.Fa major
+and
+.Fa minor
+number.
+The
+.Fn major
+and
+.Fn minor
+macros return the original numbers from the device number
+.Fa dev .
+In other words, for a value
+.Va dev
+of the type
+.Vt dev_t ,
+and values
+.Va ma , mi
+of the type
+.Vt int ,
+the assertions
+.Dl dev == makedev(major(dev), minor(dev))
+.Dl ma == major(makedev(ma, mi))
+.Dl mi == minor(makedev(ma, mi))
+are valid.
+.Pp
+In previous implementations of
+.Fx
+all block and character devices were uniquely identified by a pair of
+stable major and minor numbers.
+The major number referred to a certain device class (e.g. disks, TTYs)
+while the minor number identified an instance within the device class.
+Later versions of
+.Fx
+automatically generate a unique device number for each character device
+visible in
+.Pa /dev/ .
+These numbers are not divided in device classes and are not guaranteed
+to be stable upon reboot or driver reload.
+.Pp
+On
+.Fx
+these macros are only used by utilities that need to exchange numbers
+with other operating systems that may use different encodings for
+.Vt dev_t ,
+but also applications that present these numbers to the user in a more
+conventional way.
+.Sh RETURN VALUES
+The
+.Fn major
+and
+.Fn minor
+macros return numbers whose value can span the complete range of an
+.Vt int .
+.Sh SEE ALSO
+.Xr mknod 2 ,
+.Xr devname 3 ,
+.Xr devfs 4
diff --git a/static/freebsd/man3/offsetof.3 b/static/freebsd/man3/offsetof.3
new file mode 100644
index 00000000..f757d58a
--- /dev/null
+++ b/static/freebsd/man3/offsetof.3
@@ -0,0 +1,45 @@
+.\"	$OpenBSD: offsetof.3,v 1.2 2010/02/18 18:30:19 jmc Exp $
+.\"
+.\" Copyright (c) 2010 Thomas Pfaff <tpfaff@tp76.info>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd February 18, 2010
+.Dt OFFSETOF 3
+.Os
+.Sh NAME
+.Nm offsetof
+.Nd offset of a structure member
+.Sh SYNOPSIS
+.In stddef.h
+.Ft size_t
+.Fn offsetof "type" "member"
+.Sh DESCRIPTION
+The
+.Fn offsetof
+macro expands to an integer constant expression of type
+.Ft size_t
+and yields the offset,
+in bytes, of the field
+.Ar member
+from the start of the structure
+.Ar type .
+.Pp
+A compiler error will result if
+.Ar member
+is not aligned to a byte boundary (i.e. it is a bit-field).
+.Sh STANDARDS
+The
+.Fn offsetof
+macro conforms to
+.St -ansiC .
diff --git a/static/freebsd/man3/pthread.3 b/static/freebsd/man3/pthread.3
new file mode 100644
index 00000000..1cb13981
--- /dev/null
+++ b/static/freebsd/man3/pthread.3
@@ -0,0 +1,552 @@
+.\" Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>.
+.\" All rights reserved.
+.\"
+.\" 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. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by John Birrell.
+.\" 4. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd October 12, 2021
+.Dt PTHREAD 3
+.Os
+.Sh NAME
+.Nm pthread
+.Nd POSIX thread functions
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Sh DESCRIPTION
+POSIX threads are a set of functions that support applications with
+requirements for multiple flows of control, called
+.Em threads ,
+within a process.
+Multithreading is used to improve the performance of a
+program.
+.Pp
+The POSIX thread functions are summarized in this section in the following
+groups:
+.Pp
+.Bl -bullet -offset indent -compact
+.It
+Thread Routines
+.It
+Attribute Object Routines
+.It
+Mutex Routines
+.It
+Condition Variable Routines
+.It
+Read/Write Lock Routines
+.It
+Per-Thread Context Routines
+.It
+Cleanup Routines
+.El
+.Pp
+.Fx
+extensions to the POSIX thread functions are summarized in
+.Xr pthread_np 3 .
+.Ss Thread Routines
+.Bl -tag -width indent
+.It Xo
+.Ft int
+.Fo pthread_create
+.Fa "pthread_t *thread" "const pthread_attr_t *attr"
+.Fa "void *\*[lp]*start_routine\*[rp]\*[lp]void *\*[rp]" "void *arg"
+.Fc
+.Xc
+Creates a new thread of execution.
+.It Xo
+.Ft int
+.Fn pthread_cancel "pthread_t thread"
+.Xc
+Cancels execution of a thread.
+.It Xo
+.Ft int
+.Fn pthread_detach "pthread_t thread"
+.Xc
+Marks a thread for deletion.
+.It Xo
+.Ft int
+.Fn pthread_equal "pthread_t t1" "pthread_t t2"
+.Xc
+Compares two thread IDs.
+.It Xo
+.Ft void
+.Fn pthread_exit "void *value_ptr"
+.Xc
+Terminates the calling thread.
+.It Xo
+.Ft int
+.Fn pthread_join "pthread_t thread" "void **value_ptr"
+.Xc
+Causes the calling thread to wait for the termination of the specified thread.
+.It Xo
+.Ft int
+.Fn pthread_kill "pthread_t thread" "int sig"
+.Xc
+Delivers a signal to a specified thread.
+.It Xo
+.Ft int
+.Fn pthread_once "pthread_once_t *once_control" "void \*[lp]*init_routine\*[rp]\*[lp]void\*[rp]"
+.Xc
+Calls an initialization routine once.
+.It Xo
+.Ft pthread_t
+.Fn pthread_self void
+.Xc
+Returns the thread ID of the calling thread.
+.It Xo
+.Ft int
+.Fn pthread_setcancelstate "int state" "int *oldstate"
+.Xc
+Sets the current thread's cancelability state.
+.It Xo
+.Ft int
+.Fn pthread_setcanceltype "int type" "int *oldtype"
+.Xc
+Sets the current thread's cancelability type.
+.It Xo
+.Ft void
+.Fn pthread_testcancel void
+.Xc
+Creates a cancellation point in the calling thread.
+.It Xo
+.Ft void
+.Fn pthread_yield void
+.Xc
+Allows the scheduler to run another thread instead of the current one.
+.El
+.Ss Attribute Object Routines
+.Bl -tag -width indent
+.It Xo
+.Ft int
+.Fn pthread_attr_destroy "pthread_attr_t *attr"
+.Xc
+Destroy a thread attributes object.
+.It Xo
+.Ft int
+.Fo pthread_attr_getinheritsched
+.Fa "const pthread_attr_t *attr" "int *inheritsched"
+.Fc
+.Xc
+Get the inherit scheduling attribute from a thread attributes object.
+.It Xo
+.Ft int
+.Fo pthread_attr_getschedparam
+.Fa "const pthread_attr_t *attr" "struct sched_param *param"
+.Fc
+.Xc
+Get the scheduling parameter attribute from a thread attributes object.
+.It Xo
+.Ft int
+.Fn pthread_attr_getschedpolicy "const pthread_attr_t *attr" "int *policy"
+.Xc
+Get the scheduling policy attribute from a thread attributes object.
+.It Xo
+.Ft int
+.Fn pthread_attr_getscope "const pthread_attr_t *attr" "int *contentionscope"
+.Xc
+Get the contention scope attribute from a thread attributes object.
+.It Xo
+.Ft int
+.Fn pthread_attr_getstacksize "const pthread_attr_t *attr" "size_t *stacksize"
+.Xc
+Get the stack size attribute from a thread attributes object.
+.It Xo
+.Ft int
+.Fn pthread_attr_getstackaddr "const pthread_attr_t *attr" "void **stackaddr"
+.Xc
+Get the stack address attribute from a thread attributes object.
+.It Xo
+.Ft int
+.Fn pthread_attr_getdetachstate "const pthread_attr_t *attr" "int *detachstate"
+.Xc
+Get the detach state attribute from a thread attributes object.
+.It Xo
+.Ft int
+.Fn pthread_attr_init "pthread_attr_t *attr"
+.Xc
+Initialize a thread attributes object with default values.
+.It Xo
+.Ft int
+.Fn pthread_attr_setinheritsched "pthread_attr_t *attr" "int inheritsched"
+.Xc
+Set the inherit scheduling attribute in a thread attributes object.
+.It Xo
+.Ft int
+.Fo pthread_attr_setschedparam
+.Fa "pthread_attr_t *attr" "const struct sched_param *param"
+.Fc
+.Xc
+Set the scheduling parameter attribute in a thread attributes object.
+.It Xo
+.Ft int
+.Fn pthread_attr_setschedpolicy "pthread_attr_t *attr" "int policy"
+.Xc
+Set the scheduling policy attribute in a thread attributes object.
+.It Xo
+.Ft int
+.Fn pthread_attr_setscope "pthread_attr_t *attr" "int contentionscope"
+.Xc
+Set the contention scope attribute in a thread attributes object.
+.It Xo
+.Ft int
+.Fn pthread_attr_setstacksize "pthread_attr_t *attr" "size_t stacksize"
+.Xc
+Set the stack size attribute in a thread attributes object.
+.It Xo
+.Ft int
+.Fn pthread_attr_setstackaddr "pthread_attr_t *attr" "void *stackaddr"
+.Xc
+Set the stack address attribute in a thread attributes object.
+.It Xo
+.Ft int
+.Fn pthread_attr_setdetachstate "pthread_attr_t *attr" "int detachstate"
+.Xc
+Set the detach state in a thread attributes object.
+.El
+.Ss Mutex Routines
+.Bl -tag -width indent
+.It Xo
+.Ft int
+.Fn pthread_mutexattr_destroy "pthread_mutexattr_t *attr"
+.Xc
+Destroy a mutex attributes object.
+.It Xo
+.Ft int
+.Fn pthread_mutexattr_getprioceiling "const pthread_mutexattr_t *restrict attr" "int *restrict ceiling"
+.Xc
+Obtain priority ceiling attribute of mutex attribute object.
+.It Xo
+.Ft int
+.Fn pthread_mutexattr_getprotocol "const pthread_mutexattr_t *restrict attr" "int *restrict protocol"
+.Xc
+Obtain protocol attribute of mutex attribute object.
+.It Xo
+.Ft int
+.Fn pthread_mutexattr_gettype "const pthread_mutexattr_t *restrict attr" "int *restrict type"
+.Xc
+Obtain the mutex type attribute in the specified mutex attributes object.
+.It Xo
+.Ft int
+.Fn pthread_mutexattr_init "pthread_mutexattr_t *attr"
+.Xc
+Initialize a mutex attributes object with default values.
+.It Xo
+.Ft int
+.Fn pthread_mutexattr_setprioceiling "pthread_mutexattr_t *attr" "int ceiling"
+.Xc
+Set priority ceiling attribute of mutex attribute object.
+.It Xo
+.Ft int
+.Fn pthread_mutexattr_setprotocol "pthread_mutexattr_t *attr" "int protocol"
+.Xc
+Set protocol attribute of mutex attribute object.
+.It Xo
+.Ft int
+.Fn pthread_mutexattr_settype "pthread_mutexattr_t *attr" "int type"
+.Xc
+Set the mutex type attribute that is used when a mutex is created.
+.It Xo
+.Ft int
+.Fn pthread_mutex_destroy "pthread_mutex_t *mutex"
+.Xc
+Destroy a mutex.
+.It Xo
+.Ft int
+.Fo pthread_mutex_init
+.Fa "pthread_mutex_t *mutex" "const pthread_mutexattr_t *attr"
+.Fc
+.Xc
+Initialize a mutex with specified attributes.
+.It Xo
+.Ft int
+.Fn pthread_mutex_lock "pthread_mutex_t *mutex"
+.Xc
+Lock a mutex and block until it becomes available.
+.It Xo
+.Ft int
+.Fo pthread_mutex_timedlock
+.Fa "pthread_mutex_t *mutex" "const struct timespec *abstime"
+.Fc
+.Xc
+Lock a mutex and block until it becomes available or until the timeout expires.
+.It Xo
+.Ft int
+.Fn pthread_mutex_trylock "pthread_mutex_t *mutex"
+.Xc
+Try to lock a mutex, but do not block if the mutex is locked by another thread,
+including the current thread.
+.It Xo
+.Ft int
+.Fn pthread_mutex_unlock "pthread_mutex_t *mutex"
+.Xc
+Unlock a mutex.
+.El
+.Ss Condition Variable Routines
+.Bl -tag -width indent
+.It Xo
+.Ft int
+.Fn pthread_condattr_destroy "pthread_condattr_t *attr"
+.Xc
+Destroy a condition variable attributes object.
+.It Xo
+.Ft int
+.Fn pthread_condattr_init "pthread_condattr_t *attr"
+.Xc
+Initialize a condition variable attributes object with default values.
+.It Xo
+.Ft int
+.Fn pthread_cond_broadcast "pthread_cond_t *cond"
+.Xc
+Unblock all threads currently blocked on the specified condition variable.
+.It Xo
+.Ft int
+.Fn pthread_cond_destroy "pthread_cond_t *cond"
+.Xc
+Destroy a condition variable.
+.It Xo
+.Ft int
+.Fn pthread_cond_init "pthread_cond_t *cond" "const pthread_condattr_t *attr"
+.Xc
+Initialize a condition variable with specified attributes.
+.It Xo
+.Ft int
+.Fn pthread_cond_signal "pthread_cond_t *cond"
+.Xc
+Unblock at least one of the threads blocked on the specified condition variable.
+.It Xo
+.Ft int
+.Fo pthread_cond_timedwait
+.Fa "pthread_cond_t *cond" "pthread_mutex_t *mutex"
+.Fa "const struct timespec *abstime"
+.Fc
+.Xc
+Unlock the specified mutex, wait no longer than the specified time for
+a condition, and then relock the mutex.
+.It Xo
+.Ft int
+.Fn pthread_cond_wait "pthread_cond_t *" "pthread_mutex_t *mutex"
+.Xc
+Unlock the specified mutex, wait for a condition, and relock the mutex.
+.El
+.Ss Read/Write Lock Routines
+.Bl -tag -width indent
+.It Xo
+.Ft int
+.Fn pthread_rwlock_destroy "pthread_rwlock_t *lock"
+.Xc
+Destroy a read/write lock object.
+.It Xo
+.Ft int
+.Fo pthread_rwlock_init
+.Fa "pthread_rwlock_t *lock" "const pthread_rwlockattr_t *attr"
+.Fc
+.Xc
+Initialize a read/write lock object.
+.It Xo
+.Ft int
+.Fn pthread_rwlock_rdlock "pthread_rwlock_t *lock"
+.Xc
+Lock a read/write lock for reading, blocking until the lock can be
+acquired.
+.It Xo
+.Ft int
+.Fn pthread_rwlock_tryrdlock "pthread_rwlock_t *lock"
+.Xc
+Attempt to lock a read/write lock for reading, without blocking if the
+lock is unavailable.
+.It Xo
+.Ft int
+.Fn pthread_rwlock_trywrlock "pthread_rwlock_t *lock"
+.Xc
+Attempt to lock a read/write lock for writing, without blocking if the
+lock is unavailable.
+.It Xo
+.Ft int
+.Fn pthread_rwlock_unlock "pthread_rwlock_t *lock"
+.Xc
+Unlock a read/write lock.
+.It Xo
+.Ft int
+.Fn pthread_rwlock_wrlock "pthread_rwlock_t *lock"
+.Xc
+Lock a read/write lock for writing, blocking until the lock can be
+acquired.
+.It Xo
+.Ft int
+.Fn pthread_rwlockattr_destroy "pthread_rwlockattr_t *attr"
+.Xc
+Destroy a read/write lock attribute object.
+.It Xo
+.Ft int
+.Fo pthread_rwlockattr_getpshared
+.Fa "const pthread_rwlockattr_t *attr" "int *pshared"
+.Fc
+.Xc
+Retrieve the process shared setting for the read/write lock attribute
+object.
+.It Xo
+.Ft int
+.Fn pthread_rwlockattr_init "pthread_rwlockattr_t *attr"
+.Xc
+Initialize a read/write lock attribute object.
+.It Xo
+.Ft int
+.Fn pthread_rwlockattr_setpshared "pthread_rwlockattr_t *attr" "int pshared"
+.Xc
+Set the process shared setting for the read/write lock attribute object.
+.El
+.Ss Per-Thread Context Routines
+.Bl -tag -width indent
+.It Xo
+.Ft int
+.Fn pthread_key_create "pthread_key_t *key" "void \*[lp]*routine\*[rp]\*[lp]void *\*[rp]"
+.Xc
+Create a thread-specific data key.
+.It Xo
+.Ft int
+.Fn pthread_key_delete "pthread_key_t key"
+.Xc
+Delete a thread-specific data key.
+.It Xo
+.Ft "void *"
+.Fn pthread_getspecific "pthread_key_t key"
+.Xc
+Get the thread-specific value for the specified key.
+.It Xo
+.Ft int
+.Fn pthread_setspecific "pthread_key_t key" "const void *value_ptr"
+.Xc
+Set the thread-specific value for the specified key.
+.El
+.Ss Cleanup Routines
+.Bl -tag -width indent
+.It Xo
+.Ft int
+.Fo pthread_atfork
+.Fa "void \*[lp]*prepare\*[rp]\*[lp]void\*[rp]"
+.Fa "void \*[lp]*parent\*[rp]\*[lp]void\*[rp]"
+.Fa "void \*[lp]*child\*[rp]\*[lp]void\*[rp]"
+.Fc
+.Xc
+Register fork handlers.
+.It Xo
+.Ft void
+.Fn pthread_cleanup_pop "int execute"
+.Xc
+Remove the routine at the top of the calling thread's cancellation cleanup
+stack and optionally invoke it.
+.It Xo
+.Ft void
+.Fn pthread_cleanup_push "void \*[lp]*routine\*[rp]\*[lp]void *\*[rp]" "void *routine_arg"
+.Xc
+Push the specified cancellation cleanup handler onto the calling thread's
+cancellation stack.
+.El
+.Sh IMPLEMENTATION NOTES
+The current
+.Fx
+POSIX thread implementation is built into the
+.Lb libthr
+library.
+It contains thread-safe versions of
+.Lb libc
+functions and the thread functions.
+Threaded applications are linked with this library.
+.Sh SEE ALSO
+.Xr libthr 3 ,
+.Xr pthread_atfork 3 ,
+.Xr pthread_attr 3 ,
+.Xr pthread_cancel 3 ,
+.Xr pthread_cleanup_pop 3 ,
+.Xr pthread_cleanup_push 3 ,
+.Xr pthread_cond_broadcast 3 ,
+.Xr pthread_cond_destroy 3 ,
+.Xr pthread_cond_init 3 ,
+.Xr pthread_cond_signal 3 ,
+.Xr pthread_cond_timedwait 3 ,
+.Xr pthread_cond_wait 3 ,
+.Xr pthread_condattr_destroy 3 ,
+.Xr pthread_condattr_init 3 ,
+.Xr pthread_create 3 ,
+.Xr pthread_detach 3 ,
+.Xr pthread_equal 3 ,
+.Xr pthread_exit 3 ,
+.Xr pthread_getspecific 3 ,
+.Xr pthread_join 3 ,
+.Xr pthread_key_delete 3 ,
+.Xr pthread_kill 3 ,
+.Xr pthread_mutex_destroy 3 ,
+.Xr pthread_mutex_init 3 ,
+.Xr pthread_mutex_lock 3 ,
+.Xr pthread_mutex_trylock 3 ,
+.Xr pthread_mutex_unlock 3 ,
+.Xr pthread_mutexattr_destroy 3 ,
+.Xr pthread_mutexattr_getprioceiling 3 ,
+.Xr pthread_mutexattr_getprotocol 3 ,
+.Xr pthread_mutexattr_gettype 3 ,
+.Xr pthread_mutexattr_init 3 ,
+.Xr pthread_mutexattr_setprioceiling 3 ,
+.Xr pthread_mutexattr_setprotocol 3 ,
+.Xr pthread_mutexattr_settype 3 ,
+.Xr pthread_np 3 ,
+.Xr pthread_once 3 ,
+.Xr pthread_rwlock_destroy 3 ,
+.Xr pthread_rwlock_init 3 ,
+.Xr pthread_rwlock_rdlock 3 ,
+.Xr pthread_rwlock_unlock 3 ,
+.Xr pthread_rwlock_wrlock 3 ,
+.Xr pthread_rwlockattr_destroy 3 ,
+.Xr pthread_rwlockattr_getpshared 3 ,
+.Xr pthread_rwlockattr_init 3 ,
+.Xr pthread_rwlockattr_setpshared 3 ,
+.Xr pthread_self 3 ,
+.Xr pthread_setcancelstate 3 ,
+.Xr pthread_setcanceltype 3 ,
+.Xr pthread_setspecific 3 ,
+.Xr pthread_testcancel 3
+.Sh STANDARDS
+The functions with the
+.Nm pthread_
+prefix and not
+.Nm _np
+suffix or
+.Nm pthread_rwlock
+prefix conform to
+.St -p1003.1-96 .
+.Pp
+The functions with the
+.Nm pthread_
+prefix and
+.Nm _np
+suffix are non-portable extensions to POSIX threads.
+.Pp
+The functions with the
+.Nm pthread_rwlock
+prefix are extensions created by The Open Group as part of the
+.St -susv2 .
diff --git a/static/freebsd/man3/pthread_affinity_np.3 b/static/freebsd/man3/pthread_affinity_np.3
new file mode 100644
index 00000000..86c43d22
--- /dev/null
+++ b/static/freebsd/man3/pthread_affinity_np.3
@@ -0,0 +1,162 @@
+.\"-
+.\" Copyright (c) 2010 Xin LI <delphij@FreeBSD.org>
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd January 29, 2023
+.Dt PTHREAD_AFFINITY_NP 3
+.Os
+.Sh NAME
+.Nm pthread_getaffinity_np ,
+.Nm pthread_setaffinity_np
+.Nd manage CPU affinity
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread_np.h
+.Ft int
+.Fn pthread_getaffinity_np "pthread_t td" "size_t cpusetsize" "cpuset_t *cpusetp"
+.Ft int
+.Fn pthread_setaffinity_np "pthread_t td" "size_t cpusetsize" "const cpuset_t *cpusetp"
+.Sh DESCRIPTION
+.Fn pthread_getaffinity_np
+and
+.Fn pthread_setaffinity_np
+allow the manipulation of sets of CPUs available to the specified thread.
+.Pp
+Masks of type
+.Ft cpuset_t
+are composed using the
+.Dv CPU_SET
+macros.
+If the user-supplied mask is not large enough to fit all of the matching CPUs,
+.Fn pthread_getaffinity_np
+fails with
+.Er ERANGE .
+Calls to
+.Fn pthread_setaffinity_np
+tolerate masks of any size with no restrictions.
+The kernel uses the meaningful part of the mask, where the upper bound is
+the maximum CPU id present in the system.
+If bits for non-existing CPUs are set, calls to
+.Fn pthread_setaffinity_np
+fail with
+.Er EINVAL .
+.Pp
+The supplied mask should have a size of
+.Fa cpusetsize
+bytes.
+This size is usually provided by calling
+.Li sizeof(cpuset_t)
+which is ultimately determined by the value of
+.Dv CPU_SETSIZE
+as defined in
+.In sys/cpuset.h .
+.Pp
+.Fn pthread_getaffinity_np
+retrieves the
+mask from the thread specified by
+.Fa td ,
+and stores it in the space provided by
+.Fa cpusetp .
+.Pp
+.Fn pthread_setaffinity_np
+attempts to set the mask for the thread specified by
+.Fa td
+to the value in
+.Fa cpusetp .
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_getaffinity_np
+and
+.Fn pthread_setaffinity_np
+functions will return zero.
+Otherwise an error number will be returned
+to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_getaffinity_np
+and
+.Fn pthread_setaffinity_np
+functions may fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The
+.Fa cpusetp
+argument specified when calling
+.Fn pthread_setaffinity_np
+was not a valid value.
+.It Bq Er EDEADLK
+The
+.Fn pthread_setaffinity_np
+call would leave a thread without a valid CPU to run on because the set
+does not overlap with the thread's anonymous mask.
+.It Bq Er EFAULT
+The
+.Fa cpusetp
+pointer passed was invalid.
+.It Bq Er ESRCH
+The thread specified by the
+.Fa td
+argument could not be found.
+.It Bq Er ERANGE
+The
+.Fa cpusetsize
+was smaller than needed to fit all of the matching CPUs.
+.It Bq Er EPERM
+The calling thread did not have the credentials required to complete the
+operation.
+.El
+.Sh SEE ALSO
+.Xr cpuset 1 ,
+.Xr cpuset 2 ,
+.Xr cpuset_getid 2 ,
+.Xr cpuset_setid 2 ,
+.Xr pthread 3 ,
+.Xr pthread_attr_getaffinity_np 3 ,
+.Xr pthread_attr_setaffinity_np 3 ,
+.Xr pthread_np 3
+.Sh STANDARDS
+The
+.Nm pthread_getaffinity_np
+and
+.Nm pthread_setaffinity_np
+functions are non-standard
+.Fx
+extensions and may be not available on other operating systems.
+.Sh HISTORY
+The
+.Nm pthread_getaffinity_np
+and
+.Nm pthread_setaffinity_np
+function first appeared in
+.Fx 7.2 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm pthread_getaffinity_np
+and
+.Nm pthread_setaffinity_np
+functions were written by
+.An David Xu Aq Mt davidxu@FreeBSD.org ,
+and this manpage was written by
+.An Xin LI Aq Mt delphij@FreeBSD.org .
diff --git a/static/freebsd/man3/pthread_atfork.3 b/static/freebsd/man3/pthread_atfork.3
new file mode 100644
index 00000000..5edec13e
--- /dev/null
+++ b/static/freebsd/man3/pthread_atfork.3
@@ -0,0 +1,114 @@
+.\" Copyright (c) 2004 Alex Vasylenko <lxv@omut.org>
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.\" Portions of this text are reprinted and reproduced in electronic form
+.\" from IEEE Std 1003.1, 2004 Edition, Standard for Information Technology --
+.\" Portable Operating System Interface (POSIX), The Open Group Base
+.\" Specifications Issue 6, Copyright (C) 2001-2004 by the Institute of
+.\" Electrical and Electronics Engineers, Inc and The Open Group.  In the
+.\" event of any discrepancy between this version and the original IEEE and
+.\" The Open Group Standard, the original IEEE and The Open Group Standard is
+.\" the referee document.  The original Standard can be obtained online at
+.\"	http://www.opengroup.org/unix/online.html.
+.\"
+.Dd June 21, 2004
+.Dt PTHREAD_ATFORK 3
+.Os
+.Sh NAME
+.Nm pthread_atfork
+.Nd register fork handlers
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fo pthread_atfork
+.Fa "void \*[lp]*prepare\*[rp]\*[lp]void\*[rp]"
+.Fa "void \*[lp]*parent\*[rp]\*[lp]void\*[rp]"
+.Fa "void \*[lp]*child\*[rp]\*[lp]void\*[rp]"
+.Fc
+.Sh DESCRIPTION
+The
+.Fn pthread_atfork
+function declares fork handlers to be called before and after
+.Xr fork 2 ,
+in the context of the thread that called
+.Xr fork 2 .
+.Pp
+The handlers registered with
+.Fn pthread_atfork
+are called at the moments in time described below:
+.Bl -tag -width ".Fa prepare"
+.It Fa prepare
+Before
+.Xr fork 2
+processing commences in the parent process.
+If more than one
+.Fa prepare
+handler is registered they will be called in the opposite order
+they were registered.
+.It Fa parent
+After
+.Xr fork 2
+completes in the parent process.
+If more than one
+.Fa parent
+handler is registered they will be called in the same order
+they were registered.
+.It Fa child
+After
+.Xr fork 2
+processing completes in the child process.
+If more than one
+.Fa child
+handler is registered they will be called in the same order
+they were registered.
+.El
+.Pp
+If no handling is desired at one or more of these three points,
+a null pointer may be passed as the corresponding fork handler.
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_atfork
+function will return zero.
+Otherwise an error number will be returned to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_atfork
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er ENOMEM
+Insufficient table space exists to record the fork handler addresses.
+.El
+.Sh SEE ALSO
+.Xr fork 2 ,
+.Xr pthread 3
+.Sh STANDARDS
+The
+.Fn pthread_atfork
+function is expected to conform to
+.St -p1003.1 .
+.Sh AUTHORS
+This manpage was written by
+.An Alex Vasylenko Aq Mt lxv@omut.org .
diff --git a/static/freebsd/man3/pthread_attr.3 b/static/freebsd/man3/pthread_attr.3
new file mode 100644
index 00000000..828195c2
--- /dev/null
+++ b/static/freebsd/man3/pthread_attr.3
@@ -0,0 +1,236 @@
+.\" Copyright (C) 2000 Jason Evans <jasone@FreeBSD.org>.
+.\" All rights reserved.
+.\"
+.\" 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(s), this list of conditions and the following disclaimer as
+.\"    the first lines of this file unmodified other than the possible
+.\"    addition of one or more copyright notices.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice(s), this list of conditions and the following disclaimer in
+.\"    the documentation and/or other materials provided with the
+.\"    distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``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 COPYRIGHT HOLDER(S) 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.
+.Dd August 17, 2018
+.Dt PTHREAD_ATTR 3
+.Os
+.Sh NAME
+.Nm pthread_attr_init ,
+.Nm pthread_attr_destroy ,
+.Nm pthread_attr_setstack ,
+.Nm pthread_attr_getstack ,
+.Nm pthread_attr_setstacksize ,
+.Nm pthread_attr_getstacksize ,
+.Nm pthread_attr_setguardsize ,
+.Nm pthread_attr_getguardsize ,
+.Nm pthread_attr_setstackaddr ,
+.Nm pthread_attr_getstackaddr ,
+.Nm pthread_attr_setdetachstate ,
+.Nm pthread_attr_getdetachstate ,
+.Nm pthread_attr_setinheritsched ,
+.Nm pthread_attr_getinheritsched ,
+.Nm pthread_attr_setschedparam ,
+.Nm pthread_attr_getschedparam ,
+.Nm pthread_attr_setschedpolicy ,
+.Nm pthread_attr_getschedpolicy ,
+.Nm pthread_attr_setscope ,
+.Nm pthread_attr_getscope
+.Nd thread attribute operations
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_attr_init "pthread_attr_t *attr"
+.Ft int
+.Fn pthread_attr_destroy "pthread_attr_t *attr"
+.Ft int
+.Fn pthread_attr_setstack "pthread_attr_t *attr" " void *stackaddr" "size_t stacksize"
+.Ft int
+.Fn pthread_attr_getstack "const pthread_attr_t * restrict attr" "void ** restrict stackaddr" "size_t * restrict stacksize"
+.Ft int
+.Fn pthread_attr_setstacksize "pthread_attr_t *attr" "size_t stacksize"
+.Ft int
+.Fn pthread_attr_getstacksize "const pthread_attr_t *restrict attr" "size_t *restrict stacksize"
+.Ft int
+.Fn pthread_attr_setguardsize "pthread_attr_t *attr" "size_t guardsize"
+.Ft int
+.Fn pthread_attr_getguardsize "const pthread_attr_t * restrict attr" "size_t * restrict guardsize"
+.Ft int
+.Fn pthread_attr_setstackaddr "pthread_attr_t *attr" "void *stackaddr"
+.Ft int
+.Fn pthread_attr_getstackaddr "const pthread_attr_t *attr" "void **stackaddr"
+.Ft int
+.Fn pthread_attr_setdetachstate "pthread_attr_t *attr" "int detachstate"
+.Ft int
+.Fn pthread_attr_getdetachstate "const pthread_attr_t *attr" "int *detachstate"
+.Ft int
+.Fn pthread_attr_setinheritsched "pthread_attr_t *attr" "int inheritsched"
+.Ft int
+.Fn pthread_attr_getinheritsched "const pthread_attr_t *restrict attr" "int *restrct inheritsched"
+.Ft int
+.Fn pthread_attr_setschedparam "pthread_attr_t *attr" "const struct sched_param *param"
+.Ft int
+.Fn pthread_attr_getschedparam "const pthread_attr_t *attr" "struct sched_param *param"
+.Ft int
+.Fn pthread_attr_setschedpolicy "pthread_attr_t *attr" "int policy"
+.Ft int
+.Fn pthread_attr_getschedpolicy "const pthread_attr_t *restrict attr" "int *restrict policy"
+.Ft int
+.Fn pthread_attr_setscope "pthread_attr_t *attr" "int contentionscope"
+.Ft int
+.Fn pthread_attr_getscope "const pthread_attr_t *restrict attr" "int *restrict contentionscope"
+.Sh DESCRIPTION
+Thread attributes are used to specify parameters to
+.Fn pthread_create .
+One attribute object can be used in multiple calls to
+.Fn pthread_create ,
+with or without modifications between calls.
+.Pp
+The
+.Fn pthread_attr_init
+function initializes
+.Fa attr
+with all the default thread attributes.
+.Pp
+The
+.Fn pthread_attr_destroy
+function destroys
+.Fa attr .
+.Pp
+The
+.Fn pthread_attr_set*
+functions set the attribute that corresponds to each function name.
+.Pp
+The
+.Fn pthread_attr_get*
+functions copy the value of the attribute that corresponds to each function name
+to the location pointed to by the second function parameter.
+.Sh RETURN VALUES
+If successful, these functions return 0.
+Otherwise, an error number is returned to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_attr_init
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er ENOMEM
+Out of memory.
+.El
+.Pp
+The
+.Fn pthread_attr_destroy
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Invalid value for
+.Fa attr .
+.El
+.Pp
+The
+.Fn pthread_attr_setstacksize
+and
+.Fn pthread_attr_setstack
+functions will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+.Fa stacksize
+is less than
+.Dv PTHREAD_STACK_MIN .
+.El
+.Pp
+The
+.Fn pthread_attr_setdetachstate
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Invalid value for
+.Fa detachstate .
+.El
+.Pp
+The
+.Fn pthread_attr_setinheritsched
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Invalid value for
+.Fa attr .
+.El
+.Pp
+The
+.Fn pthread_attr_setschedparam
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Invalid value for
+.Fa attr .
+.It Bq Er ENOTSUP
+Invalid value for
+.Fa param .
+.El
+.Pp
+The
+.Fn pthread_attr_setschedpolicy
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Invalid value for
+.Fa attr .
+.It Bq Er ENOTSUP
+Invalid or unsupported value for
+.Fa policy .
+.El
+.Pp
+The
+.Fn pthread_attr_setscope
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Invalid value for
+.Fa attr .
+.It Bq Er ENOTSUP
+Invalid or unsupported value for
+.Fa contentionscope .
+.El
+.Sh SEE ALSO
+.Xr pthread_attr_affinity_np 3 ,
+.Xr pthread_attr_get_np 3 ,
+.Xr pthread_create 3
+.Sh STANDARDS
+.Fn pthread_attr_init ,
+.Fn pthread_attr_destroy ,
+.Fn pthread_attr_setstacksize ,
+.Fn pthread_attr_getstacksize ,
+.Fn pthread_attr_setstackaddr ,
+.Fn pthread_attr_getstackaddr ,
+.Fn pthread_attr_setdetachstate ,
+and
+.Fn pthread_attr_getdetachstate
+functions conform to
+.St -p1003.1-96
+.Pp
+The
+.Fn pthread_attr_setinheritsched ,
+.Fn pthread_attr_getinheritsched ,
+.Fn pthread_attr_setschedparam ,
+.Fn pthread_attr_getschedparam ,
+.Fn pthread_attr_setschedpolicy ,
+.Fn pthread_attr_getschedpolicy ,
+.Fn pthread_attr_setscope ,
+and
+.Fn pthread_attr_getscope
+functions conform to
+.St -susv2
diff --git a/static/freebsd/man3/pthread_attr_affinity_np.3 b/static/freebsd/man3/pthread_attr_affinity_np.3
new file mode 100644
index 00000000..0589213c
--- /dev/null
+++ b/static/freebsd/man3/pthread_attr_affinity_np.3
@@ -0,0 +1,161 @@
+.\"-
+.\" Copyright (c) 2010 Xin LI <delphij@FreeBSD.org>
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd January 29, 2023
+.Dt PTHREAD_ATTR_AFFINITY_NP 3
+.Os
+.Sh NAME
+.Nm pthread_attr_getaffinity_np ,
+.Nm pthread_attr_setaffinity_np
+.Nd manage CPU affinity in thread attribute objects
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread_np.h
+.Ft int
+.Fn pthread_attr_getaffinity_np "const pthread_attr_t *pattr" "size_t cpusetsize" "cpuset_t *cpusetp"
+.Ft int
+.Fn pthread_attr_setaffinity_np "pthread_attr_t *pattr" "size_t cpusetsize" "const cpuset_t *cpusetp"
+.Sh DESCRIPTION
+The
+.Fn pthread_attr_getaffinity_np
+and
+.Fn pthread_attr_setaffinity_np
+functions allow the manipulation of sets of CPUs available to the specified thread attribute object.
+.Pp
+Masks of type
+.Ft cpuset_t
+are composed using the
+.Dv CPU_SET
+macros.
+If the user-supplied mask is not large enough to fit all of the matching CPUs,
+.Fn pthread_attr_getaffinity_np
+fails with
+.Er ERANGE .
+Calls to
+.Fn pthread_attr_setaffinity_np
+tolerate masks of any size with no restrictions.
+.Fn pthread_attr_setaffinity_np
+uses the meaningful part of the mask, where the upper bound is
+the maximum CPU id present in the system.
+If bits for non-existing CPUs are set, calls to
+.Fn pthread_attr_setaffinity_np
+fail with
+.Er EINVAL .
+.Pp
+The supplied mask should have a size of
+.Fa cpusetsize
+bytes.
+This size is usually provided by calling
+.Li sizeof(cpuset_t)
+which is ultimately determined by the value of
+.Dv CPU_SETSIZE
+as defined in
+.In sys/cpuset.h .
+.Pp
+.Fn pthread_attr_getaffinity_np
+retrieves the
+mask from the thread attribute object specified by
+.Fa pattr ,
+and stores it in the space provided by
+.Fa cpusetp .
+.Pp
+.Fn pthread_attr_setaffinity_np
+sets the mask for the thread attribute object specified by
+.Fa pattr
+to the value in
+.Fa cpusetp .
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_attr_getaffinity_np
+and
+.Fn pthread_attr_setaffinity_np
+functions will return zero.
+Otherwise an error number will be returned
+to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_attr_getaffinity_np
+functions will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The
+.Fa pattr
+or the attribute specified by it is
+.Dv NULL .
+.It Bq Er ERANGE
+The
+.Fa cpusetsize
+is too small.
+.El
+.Pp
+The
+.Fn pthread_attr_setaffinity_np
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The
+.Fa pattr
+or the attribute specified by it is
+.Dv NULL .
+.It Bq Er EINVAL
+The
+.Fa cpusetp
+specified a CPU that was outside the set supported by the kernel.
+.It Bq Er ENOMEM
+Insufficient memory exists to store the cpuset mask.
+.El
+.Sh SEE ALSO
+.Xr cpuset 1 ,
+.Xr cpuset 2 ,
+.Xr cpuset_getid 2 ,
+.Xr cpuset_setid 2 ,
+.Xr pthread_getaffinity_np 3 ,
+.Xr pthread_np 3 ,
+.Xr pthread_setaffinity_np 3
+.Sh STANDARDS
+The
+.Nm pthread_attr_getaffinity_np
+and
+.Nm pthread_attr_setaffinity_np
+functions are non-standard
+.Fx
+extensions and may be not available on other operating systems.
+.Sh HISTORY
+The
+.Nm pthread_attr_getaffinity_np
+and
+.Nm pthread_attr_setaffinity_np
+functions first appeared in
+.Fx 7.2 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm pthread_attr_getaffinity_np
+and
+.Nm pthread_attr_setaffinity_np
+functions were written by
+.An David Xu Aq Mt davidxu@FreeBSD.org ,
+and this manpage was written by
+.An Xin LI Aq Mt delphij@FreeBSD.org .
diff --git a/static/freebsd/man3/pthread_attr_get_np.3 b/static/freebsd/man3/pthread_attr_get_np.3
new file mode 100644
index 00000000..07153586
--- /dev/null
+++ b/static/freebsd/man3/pthread_attr_get_np.3
@@ -0,0 +1,128 @@
+.\" Copyright (c) 2002,2003 Alexey Zelkin <phantom@FreeBSD.org>
+.\" All rights reserved.
+.\" Copyright (c) 2024 The FreeBSD Foundation
+.\"
+.\" Portions of this documentation were written by Olivier Certner
+.\" <olce@FreeBSD.org> at Kumacom SARL under sponsorship from the
+.\" FreeBSD Foundation.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd January 5, 2024
+.Dt PTHREAD_ATTR_GET_NP 3
+.Os
+.Sh NAME
+.Nm pthread_attr_get_np
+.Nd get attributes of an existing thread
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread_np.h
+.Ft int
+.Fn pthread_attr_get_np "pthread_t pid" "pthread_attr_t *dst"
+.Sh DESCRIPTION
+The
+.Fn pthread_attr_get_np
+function is used to retrieve the attributes of the specified thread into an
+existing
+.Vt pthread_attr_t
+structure.
+The attributes' values are the current ones for the target thread, except for
+the stack top address if not properly aligned for the architecture, since in
+this case its value has been adjusted internally before use.
+.Pp
+Argument
+.Fa dst
+must be a pointer to a valid attributes object
+.Po
+it was initialized at some point by
+.Xr pthread_attr_init 3
+and was not destroyed since then
+.Pc .
+After a successful call to
+.Fn pthread_attr_get_np ,
+the individual attributes' values can be retrieved as usual via the
+corresponding accessor functions as documented in
+.Xr pthread_attr 3 .
+After a failed call to
+.Fn pthread_attr_get_np ,
+the object pointed to by
+.Fa dst
+is left unmodified, and can continue to be used as if the failed call never
+happened.
+.Sh RETURN VALUES
+If successful,
+.Fn pthread_attr_get_np
+function returns 0.
+Otherwise, an error number is returned to indicate the error.
+.Sh EXAMPLES
+This function retrieves the stack size of the thread specified by the
+.Fa pid
+argument:
+.Bd -literal
+size_t
+my_thread_stack_size(pthread_t tid)
+{
+	pthread_attr_t attr;
+	size_t size;
+
+	pthread_attr_init(&attr);
+	pthread_attr_get_np(tid, &attr);
+	pthread_attr_getstacksize(&attr, &size);
+	pthread_attr_destroy(&attr);
+	return (size);
+}
+.Ed
+.Sh ERRORS
+The
+.Fn pthread_attr_get_np
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+One of the arguments has an invalid value.
+.It Bq Er ESRCH
+No thread could be found corresponding to that specified by the given
+thread ID.
+.It Bq Er ENOMEM
+There was not enough memory to allocate additional storage needed by the attributes
+object's implementation.
+.El
+.Sh SEE ALSO
+.Xr pthread_attr 3 ,
+.Xr pthread_attr_destroy 3 ,
+.Xr pthread_attr_getdetachstate 3 ,
+.Xr pthread_attr_getinheritsched 3 ,
+.Xr pthread_attr_getschedparam 3 ,
+.Xr pthread_attr_getschedpolicy 3 ,
+.Xr pthread_attr_getscope 3 ,
+.Xr pthread_attr_getstack 3 ,
+.Xr pthread_attr_getstackaddr 3 ,
+.Xr pthread_attr_getstacksize 3 ,
+.Xr pthread_attr_init 3 ,
+.Xr pthread_np 3
+.Sh AUTHORS
+The
+.Fn pthread_attr_get_np
+function and this manual page were written by
+.An Alexey Zelkin Aq Mt phantom@FreeBSD.org ,
+and the latter was revised by
+.An Olivier Certner Aq Mt olce@FreeBSD.org .
diff --git a/static/freebsd/man3/pthread_attr_setcreatesuspend_np.3 b/static/freebsd/man3/pthread_attr_setcreatesuspend_np.3
new file mode 100644
index 00000000..3d2f84a4
--- /dev/null
+++ b/static/freebsd/man3/pthread_attr_setcreatesuspend_np.3
@@ -0,0 +1,71 @@
+.\" Copyright (c) 2003 Alexey Zelkin <phantom@FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd October 12, 2021
+.Dt PTHREAD_ATTR_SETCREATESUSPEND_NP 3
+.Os
+.Sh NAME
+.Nm pthread_attr_setcreatesuspend_np
+.Nd prepare attribute for creation of suspended thread
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread_np.h
+.Ft int
+.Fn pthread_attr_setcreatesuspend_np "pthread_attr_t *attr"
+.Sh DESCRIPTION
+The
+.Fn pthread_attr_setcreatesuspend_np
+instructs
+.Xr pthread_create 3
+that the thread created with the
+.Fa attr
+attribute
+should be created and left in a suspended state until explicitly resumed
+by the call to
+.Fn pthread_resume_np
+or
+.Fn pthread_resume_all_np .
+.Sh RETURN VALUES
+.Rv -std pthread_attr_setcreatesuspend_np
+.Sh ERRORS
+The
+.Fn pthread_attr_setcreatesuspend_np
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa attr
+is invalid.
+.El
+.Sh SEE ALSO
+.Xr pthread_attr_destroy 3 ,
+.Xr pthread_attr_init 3 ,
+.Xr pthread_create 3 ,
+.Xr pthread_np 3 ,
+.Xr pthread_resume_all_np 3 ,
+.Xr pthread_resume_np 3
+.Sh AUTHORS
+This manual page was written by
+.An Alexey Zelkin Aq Mt phantom@FreeBSD.org .
diff --git a/static/freebsd/man3/pthread_barrier_destroy.3 b/static/freebsd/man3/pthread_barrier_destroy.3
new file mode 100644
index 00000000..06c8b97e
--- /dev/null
+++ b/static/freebsd/man3/pthread_barrier_destroy.3
@@ -0,0 +1,154 @@
+.\" Copyright (c) 2004 Michael Telahun Makonnen
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd August 17, 2018
+.Dt PTHREAD_BARRIER 3
+.Os
+.Sh NAME
+.Nm pthread_barrier_destroy , pthread_barrier_init , pthread_barrier_wait
+.Nd "destroy, initialize or wait on a barrier object"
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_barrier_destroy "pthread_barrier_t *barrier"
+.Ft int
+.Fn pthread_barrier_init "pthread_barrier_t *restrict barrier" "const pthread_barrierattr_t *attr" "unsigned count"
+.Ft int
+.Fn pthread_barrier_wait "pthread_barrier_t *barrier"
+.Sh DESCRIPTION
+The
+.Fn pthread_barrier_init
+function will initialize
+.Fa barrier
+with attributes specified in
+.Fa attr ,
+or if it is
+.Dv NULL ,
+with default attributes.
+The number of threads that must call
+.Fn pthread_barrier_wait
+before any of the waiting threads can be
+released is specified by
+.Fa count .
+The
+.Fn pthread_barrier_destroy
+function will destroy
+.Fa barrier
+and release any resources that may have been allocated on its behalf.
+.Pp
+The
+.Fn pthread_barrier_wait
+function will synchronize calling threads at
+.Fa barrier .
+The threads will be blocked from
+making further progress until
+a sufficient number of threads calls this function.
+The number of threads that must call it before
+any of them will be released is determined by the
+.Fa count
+argument to
+.Fn pthread_barrier_init .
+Once the threads have been released the barrier will be reset.
+.Sh IMPLEMENTATION NOTES
+In
+.Lb libthr
+the
+.Dv PTHREAD_BARRIER_SERIAL_THREAD
+return value will
+always be returned by the last thread to reach the barrier.
+.Sh RETURN VALUES
+If successful,
+both
+.Fn pthread_barrier_destroy
+and
+.Fn pthread_barrier_init
+will return zero.
+Otherwise, an error number will be returned to indicate the error.
+If the call to
+.Fn pthread_barrier_wait
+is successful, all but one of the threads will return zero.
+That one thread will return
+.Dv PTHREAD_BARRIER_SERIAL_THREAD .
+Otherwise, an error number will be returned to indicate the error.
+.Pp
+None of these functions will return
+.Er EINTR .
+.Sh ERRORS
+The
+.Fn pthread_barrier_destroy
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EBUSY
+An attempt was made to destroy
+.Fa barrier
+while it was in use.
+.El
+.Pp
+The
+.Fn pthread_barrier_destroy
+and
+.Fn pthread_barrier_wait
+functions may fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa barrier
+is invalid.
+.El
+.Pp
+The
+.Fn pthread_barrier_init
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EAGAIN
+The system lacks resources,
+other than memory,
+to initialize
+.Fa barrier .
+.It Bq Er EINVAL
+The
+.Fa count
+argument is less than 1.
+.It Bq Er ENOMEM
+Insufficient memory to initialize
+.Fa barrier .
+.El
+.Sh SEE ALSO
+.Xr pthread_barrierattr 3
+.Sh HISTORY
+The
+.Fn pthread_barrier_destroy ,
+.Fn pthread_barrier_init
+and
+.Fn pthread_barrier_wait
+functions first appeared in
+.Lb libkse
+in
+.Fx 5.2 ,
+and in
+.Lb libthr
+in
+.Fx 5.3 .
diff --git a/static/freebsd/man3/pthread_barrierattr.3 b/static/freebsd/man3/pthread_barrierattr.3
new file mode 100644
index 00000000..1f5243f9
--- /dev/null
+++ b/static/freebsd/man3/pthread_barrierattr.3
@@ -0,0 +1,137 @@
+.\" Copyright (c) 2004 Michael Telahun Makonnen
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd August 17, 2018
+.Dt PTHREAD_BARRIERATTR 3
+.Os
+.Sh NAME
+.Nm pthread_barrierattr_destroy , pthread_barrierattr_getpshared ,
+.Nm pthread_barrierattr_init , pthread_barrierattr_setpshared
+.Nd "manipulate a barrier attribute object"
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_barrierattr_destroy "pthread_barrierattr_t *attr"
+.Ft int
+.Fo pthread_barrierattr_getpshared
+.Fa "const pthread_barrierattr_t *restrict attr" "int *restrict pshared"
+.Fc
+.Ft int
+.Fn pthread_barrierattr_init "pthread_barrierattr_t *attr"
+.Ft int
+.Fo pthread_barrierattr_setpshared
+.Fa "pthread_barrierattr_t *attr" "int pshared"
+.Fc
+.Sh DESCRIPTION
+The
+.Fn pthread_barrierattr_init
+function will initialize
+.Fa attr
+with default attributes.
+The
+.Fn pthread_barrierattr_destroy
+function will destroy
+.Fa attr
+and release any resources that may have been allocated on its behalf.
+.Pp
+The
+.Fn pthread_barrierattr_getpshared
+function will put the value of the process-shared attribute from
+.Fa attr
+into the memory area pointed to by
+.Fa pshared .
+The
+.Fn pthread_barrierattr_setpshared
+function will set the process-shared attribute of
+.Fa attr
+to the value specified in
+.Fa pshared .
+The argument
+.Fa pshared
+may have one of the following values:
+.Bl -tag -width ".Dv PTHREAD_PROCESS_PRIVATE"
+.It Dv PTHREAD_PROCESS_PRIVATE
+The barrier object it is attached to may only be accessed by
+threads in the same process as the one that created the object.
+.It Dv PTHREAD_PROCESS_SHARED
+The barrier object it is attached to may be accessed by
+threads in processes other than the one that created the object.
+.El
+.Sh RETURN VALUES
+If successful, all these functions will return zero.
+Otherwise, an error number will be returned to indicate the error.
+.Pp
+None of these functions will return
+.Er EINTR .
+.Sh ERRORS
+The
+.Fn pthread_barrierattr_destroy ,
+.Fn pthread_barrierattr_getpshared
+and
+.Fn pthread_barrierattr_setpshared
+functions may fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa attr
+is invalid.
+.El
+.Pp
+The
+.Fn pthread_barrierattr_init
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er ENOMEM
+Insufficient memory to initialize the barrier attribute object
+.Fa attr .
+.El
+.Pp
+The
+.Fn pthread_barrierattr_setpshared
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified in
+.Fa pshared
+is not one of the allowed values.
+.El
+.Sh SEE ALSO
+.Xr pthread_barrier_destroy 3 ,
+.Xr pthread_barrier_init 3 ,
+.Xr pthread_barrier_wait 3
+.Sh HISTORY
+The
+.Fn pthread_barrierattr_*
+functions first appeared in
+.Lb libkse
+in
+.Fx 5.2 ,
+and in
+.Lb libthr
+in
+.Fx 5.3 .
+Support for process-shared barriers appeared in
+.Fx 11.0 .
diff --git a/static/freebsd/man3/pthread_cancel.3 b/static/freebsd/man3/pthread_cancel.3
new file mode 100644
index 00000000..33a00300
--- /dev/null
+++ b/static/freebsd/man3/pthread_cancel.3
@@ -0,0 +1,80 @@
+.Dd January 17, 1999
+.Dt PTHREAD_CANCEL 3
+.Os
+.Sh NAME
+.Nm pthread_cancel
+.Nd cancel execution of a thread
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_cancel "pthread_t thread"
+.Sh DESCRIPTION
+The
+.Fn pthread_cancel
+function requests that
+.Fa thread
+be canceled.
+The target thread's cancelability state and type determines
+when the cancellation takes effect.
+When the cancellation is acted on,
+the cancellation cleanup handlers for
+.Fa thread
+are called.
+When the last cancellation cleanup handler returns,
+the thread-specific data destructor functions will be called for
+.Fa thread .
+When the last destructor function returns,
+.Fa thread
+will be terminated.
+.Pp
+The cancellation processing in the target thread runs asynchronously with
+respect to the calling thread returning from
+.Fn pthread_cancel .
+.Pp
+A status of
+.Dv PTHREAD_CANCELED
+is made available to any threads joining with the target.
+The symbolic
+constant
+.Dv PTHREAD_CANCELED
+expands to a constant expression of type
+.Ft "(void *)" ,
+whose value matches no pointer to an object in memory nor the value
+.Dv NULL .
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_cancel
+functions will return zero.
+Otherwise an error number will be returned to
+indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_cancel
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er ESRCH
+No thread could be found corresponding to that specified by the given
+thread ID.
+.El
+.Sh SEE ALSO
+.Xr pthread_cleanup_pop 3 ,
+.Xr pthread_cleanup_push 3 ,
+.Xr pthread_exit 3 ,
+.Xr pthread_join 3 ,
+.Xr pthread_setcancelstate 3 ,
+.Xr pthread_setcanceltype 3 ,
+.Xr pthread_testcancel 3
+.Sh STANDARDS
+The
+.Fn pthread_cancel
+function conforms to
+.St -p1003.1-96 .
+.Sh AUTHORS
+This manual page was written by
+.An David Leonard Aq Mt d@openbsd.org
+for the
+.Ox
+implementation of
+.Fn pthread_cancel .
diff --git a/static/freebsd/man3/pthread_cleanup_pop.3 b/static/freebsd/man3/pthread_cleanup_pop.3
new file mode 100644
index 00000000..2747624b
--- /dev/null
+++ b/static/freebsd/man3/pthread_cleanup_pop.3
@@ -0,0 +1,72 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" 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 author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd October 25, 2014
+.Dt PTHREAD_CLEANUP_POP 3
+.Os
+.Sh NAME
+.Nm pthread_cleanup_pop
+.Nd call the first cleanup routine
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft void
+.Fn pthread_cleanup_pop "int execute"
+.Sh DESCRIPTION
+The
+.Fn pthread_cleanup_pop
+function pops the top cleanup routine off of the current threads cleanup
+routine stack, and, if
+.Fa execute
+is non-zero, it will execute the function.
+If there is no cleanup routine
+then
+.Fn pthread_cleanup_pop
+does nothing.
+.Pp
+The
+.Fn pthread_cleanup_pop
+function is implemented as a macro that closes a block.
+Invocations of this function must appear as standalone statements that are
+paired with an earlier call of
+.Xr pthread_cleanup_push 3
+in the same lexical scope.
+.Sh RETURN VALUES
+The
+.Fn pthread_cleanup_pop
+function does not return any value.
+.Sh ERRORS
+None
+.Sh SEE ALSO
+.Xr pthread_cleanup_push 3 ,
+.Xr pthread_exit 3
+.Sh STANDARDS
+The
+.Fn pthread_cleanup_pop
+function conforms to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_cleanup_push.3 b/static/freebsd/man3/pthread_cleanup_push.3
new file mode 100644
index 00000000..327c2fc3
--- /dev/null
+++ b/static/freebsd/man3/pthread_cleanup_push.3
@@ -0,0 +1,74 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" 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 author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd October 25, 2014
+.Dt PTHREAD_CLEANUP_PUSH 3
+.Os
+.Sh NAME
+.Nm pthread_cleanup_push
+.Nd add a cleanup function for thread exit
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft void
+.Fn pthread_cleanup_push "void \*[lp]*cleanup_routine\*[rp]\*[lp]void *\*[rp]" "void *arg"
+.Sh DESCRIPTION
+The
+.Fn pthread_cleanup_push
+function adds
+.Fa cleanup_routine
+to the top of the stack of cleanup handlers that
+get called when the current thread exits.
+.Pp
+When
+.Fa cleanup_routine
+is called, it is passed
+.Fa arg
+as its only argument.
+.Pp
+The
+.Fn pthread_cleanup_push
+function is implemented as a macro that opens a new block.
+Invocations of this function must appear as standalone statements that are
+paired with a later call of
+.Xr pthread_cleanup_pop 3
+in the same lexical scope.
+.Sh RETURN VALUES
+The
+.Fn pthread_cleanup_push
+function does not return any value.
+.Sh ERRORS
+None
+.Sh SEE ALSO
+.Xr pthread_cleanup_pop 3 ,
+.Xr pthread_exit 3
+.Sh STANDARDS
+The
+.Fn pthread_cleanup_push
+function conforms to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_cond_broadcast.3 b/static/freebsd/man3/pthread_cond_broadcast.3
new file mode 100644
index 00000000..77c1a2c2
--- /dev/null
+++ b/static/freebsd/man3/pthread_cond_broadcast.3
@@ -0,0 +1,70 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" 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 author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd July 28, 1998
+.Dt PTHREAD_COND_BROADCAST 3
+.Os
+.Sh NAME
+.Nm pthread_cond_broadcast
+.Nd unblock all threads waiting for a condition variable
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_cond_broadcast "pthread_cond_t *cond"
+.Sh DESCRIPTION
+The
+.Fn pthread_cond_broadcast
+function unblocks all threads waiting for the condition variable
+.Fa cond .
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_cond_broadcast
+function will return zero, otherwise an error number will be returned
+to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_cond_broadcast
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa cond
+is invalid.
+.El
+.Sh SEE ALSO
+.Xr pthread_cond_destroy 3 ,
+.Xr pthread_cond_init 3 ,
+.Xr pthread_cond_signal 3 ,
+.Xr pthread_cond_timedwait 3 ,
+.Xr pthread_cond_wait 3
+.Sh STANDARDS
+The
+.Fn pthread_cond_broadcast
+function conforms to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_cond_destroy.3 b/static/freebsd/man3/pthread_cond_destroy.3
new file mode 100644
index 00000000..ec07b030
--- /dev/null
+++ b/static/freebsd/man3/pthread_cond_destroy.3
@@ -0,0 +1,77 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" 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 author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd July 28, 1998
+.Dt PTHREAD_COND_DESTROY 3
+.Os
+.Sh NAME
+.Nm pthread_cond_destroy
+.Nd destroy a condition variable
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_cond_destroy "pthread_cond_t *cond"
+.Sh DESCRIPTION
+The
+.Fn pthread_cond_destroy
+function frees the resources allocated by the condition variable
+.Fa cond .
+.Sh IMPLEMENTATION NOTES
+A condition variable can be destroyed immediately after all the threads that
+are blocked on it are awakened.
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_cond_destroy
+function will return zero, otherwise an error number will be returned
+to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_cond_destroy
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa cond
+is invalid.
+.It Bq Er EBUSY
+The variable
+.Fa cond
+is locked by another thread.
+.El
+.Sh SEE ALSO
+.Xr pthread_cond_broadcast 3 ,
+.Xr pthread_cond_init 3 ,
+.Xr pthread_cond_signal 3 ,
+.Xr pthread_cond_timedwait 3 ,
+.Xr pthread_cond_wait 3
+.Sh STANDARDS
+The
+.Fn pthread_cond_destroy
+function conforms to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_cond_init.3 b/static/freebsd/man3/pthread_cond_init.3
new file mode 100644
index 00000000..8d3dd79d
--- /dev/null
+++ b/static/freebsd/man3/pthread_cond_init.3
@@ -0,0 +1,81 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" 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 author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd August 17, 2018
+.Dt PTHREAD_COND_INIT 3
+.Os
+.Sh NAME
+.Nm pthread_cond_init
+.Nd create a condition variable
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_cond_init "pthread_cond_t *restrict cond" "const pthread_condattr_t *restrict attr"
+.Sh DESCRIPTION
+The
+.Fn pthread_cond_init
+function creates a new condition variable, with attributes specified with
+.Fa attr .
+If
+.Fa attr
+is NULL the default attributes are used.
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_cond_init
+function will return zero and put the new condition variable id into
+.Fa cond ,
+otherwise an error number will be returned to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_cond_init
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa attr
+is invalid.
+.It Bq Er ENOMEM
+The process cannot allocate enough memory to create another condition
+variable.
+.It Bq Er EAGAIN
+The system temporarily lacks the resources to create another condition
+variable.
+.El
+.Sh SEE ALSO
+.Xr pthread_cond_broadcast 3 ,
+.Xr pthread_cond_destroy 3 ,
+.Xr pthread_cond_signal 3 ,
+.Xr pthread_cond_timedwait 3 ,
+.Xr pthread_cond_wait 3 ,
+.Xr pthread_condattr 3
+.Sh STANDARDS
+The
+.Fn pthread_cond_init
+function conforms to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_cond_signal.3 b/static/freebsd/man3/pthread_cond_signal.3
new file mode 100644
index 00000000..5eb65650
--- /dev/null
+++ b/static/freebsd/man3/pthread_cond_signal.3
@@ -0,0 +1,70 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" 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 author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd July 28, 1998
+.Dt PTHREAD_COND_SIGNAL 3
+.Os
+.Sh NAME
+.Nm pthread_cond_signal
+.Nd unblock a thread waiting for a condition variable
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_cond_signal "pthread_cond_t *cond"
+.Sh DESCRIPTION
+The
+.Fn pthread_cond_signal
+function unblocks one thread waiting for the condition variable
+.Fa cond .
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_cond_signal
+function will return zero, otherwise an error number will be returned
+to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_cond_signal
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa cond
+is invalid.
+.El
+.Sh SEE ALSO
+.Xr pthread_cond_broadcast 3 ,
+.Xr pthread_cond_destroy 3 ,
+.Xr pthread_cond_init 3 ,
+.Xr pthread_cond_timedwait 3 ,
+.Xr pthread_cond_wait 3
+.Sh STANDARDS
+The
+.Fn pthread_cond_signal
+function conforms to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_cond_timedwait.3 b/static/freebsd/man3/pthread_cond_timedwait.3
new file mode 100644
index 00000000..d955bf85
--- /dev/null
+++ b/static/freebsd/man3/pthread_cond_timedwait.3
@@ -0,0 +1,99 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" 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 author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd May 9, 2010
+.Dt PTHREAD_COND_TIMEDWAIT 3
+.Os
+.Sh NAME
+.Nm pthread_cond_timedwait
+.Nd "wait on a condition variable for a specific amount of time"
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_cond_timedwait "pthread_cond_t *cond" "pthread_mutex_t *mutex" "const struct timespec *abstime"
+.Sh DESCRIPTION
+The
+.Fn pthread_cond_timedwait
+function atomically blocks the current thread waiting on the condition
+variable specified by
+.Fa cond ,
+and releases the mutex specified by
+.Fa mutex .
+The waiting thread unblocks only after another thread calls
+.Xr pthread_cond_signal 3 ,
+or
+.Xr pthread_cond_broadcast 3
+with the same condition variable, or if the system time reaches the
+time specified in
+.Fa abstime ,
+and the current thread reacquires the lock on
+.Fa mutex .
+.Pp
+The clock used to measure
+.Fa abstime
+can be specified during creation of the condition variable using
+.Xr pthread_condattr_setclock 3 .
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_cond_timedwait
+function will return zero.
+Otherwise an error number will be returned to
+indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_cond_timedwait
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa cond ,
+.Fa mutex
+or
+.Fa abstime
+is invalid.
+.It Bq Er ETIMEDOUT
+The system time has reached or exceeded the time specified in
+.Fa abstime .
+.It Bq Er EPERM
+The specified
+.Fa mutex
+was not locked by the calling thread.
+.El
+.Sh SEE ALSO
+.Xr pthread_cond_broadcast 3 ,
+.Xr pthread_cond_destroy 3 ,
+.Xr pthread_cond_init 3 ,
+.Xr pthread_cond_signal 3 ,
+.Xr pthread_cond_wait 3 ,
+.Xr pthread_condattr_setclock 3
+.Sh STANDARDS
+The
+.Fn pthread_cond_timedwait
+function conforms to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_cond_wait.3 b/static/freebsd/man3/pthread_cond_wait.3
new file mode 100644
index 00000000..c09e7aa6
--- /dev/null
+++ b/static/freebsd/man3/pthread_cond_wait.3
@@ -0,0 +1,99 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" 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 author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd August 7, 2019
+.Dt PTHREAD_COND_WAIT 3
+.Os
+.Sh NAME
+.Nm pthread_cond_wait
+.Nd wait on a condition variable
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_cond_wait "pthread_cond_t *restrict cond" "pthread_mutex_t *restrict mutex"
+.Sh DESCRIPTION
+The
+.Fn pthread_cond_wait
+function atomically blocks the current thread waiting on the condition
+variable specified by
+.Fa cond ,
+and releases the mutex specified by
+.Fa mutex .
+The waiting thread unblocks only after another thread calls
+.Xr pthread_cond_signal 3 ,
+or
+.Xr pthread_cond_broadcast 3
+with the same condition variable, and the current thread reacquires the lock
+on
+.Fa mutex .
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_cond_wait
+function will return zero.
+Otherwise an error number will be returned to
+indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_cond_wait
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa cond
+or the value specified by
+.Fa mutex
+is invalid.
+.It Bq Er EPERM
+The specified
+.Fa mutex
+was not locked by the calling thread.
+.It Bq Er EOWNERDEAD
+The argument
+.Fa mutex
+points to a robust mutex and the process containing the previous owning
+thread terminated while holding the mutex lock.
+The lock was granted to the caller and it is up to the new owner
+to make the state consistent.
+.It Bq Er ENOTRECOVERABLE
+The state protected by the
+.Fa mutex
+is not recoverable.
+.El
+.Sh SEE ALSO
+.Xr pthread_cond_broadcast 3 ,
+.Xr pthread_cond_destroy 3 ,
+.Xr pthread_cond_init 3 ,
+.Xr pthread_cond_signal 3 ,
+.Xr pthread_cond_timedwait 3 ,
+.Xr pthread_mutex_consistent 3
+.Sh STANDARDS
+The
+.Fn pthread_cond_wait
+function conforms to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_condattr.3 b/static/freebsd/man3/pthread_condattr.3
new file mode 100644
index 00000000..33ad904f
--- /dev/null
+++ b/static/freebsd/man3/pthread_condattr.3
@@ -0,0 +1,170 @@
+.\" Copyright (C) 2000 Jason Evans <jasone@FreeBSD.org>.
+.\" All rights reserved.
+.\"
+.\" 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(s), this list of conditions and the following disclaimer as
+.\"    the first lines of this file unmodified other than the possible
+.\"    addition of one or more copyright notices.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice(s), this list of conditions and the following disclaimer in
+.\"    the documentation and/or other materials provided with the
+.\"    distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``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 COPYRIGHT HOLDER(S) 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.
+.Dd October 27, 2023
+.Dt PTHREAD_CONDATTR 3
+.Os
+.Sh NAME
+.Nm pthread_condattr_init ,
+.Nm pthread_condattr_destroy ,
+.Nm pthread_condattr_getclock ,
+.Nm pthread_condattr_setclock ,
+.Nm pthread_condattr_getpshared ,
+.Nm pthread_condattr_setpshared
+.Nd condition attribute operations
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_condattr_init "pthread_condattr_t *attr"
+.Ft int
+.Fn pthread_condattr_destroy "pthread_condattr_t *attr"
+.Ft int
+.Fo pthread_condattr_getclock
+.Fa "pthread_condattr_t * restrict attr" "clockid_t * restrict clock_id"
+.Fc
+.Ft int
+.Fn pthread_condattr_setclock "pthread_condattr_t *attr" "clockid_t clock_id"
+.Ft int
+.Fo pthread_condattr_getpshared
+.Fa "pthread_condattr_t * restrict attr" "int * restrict pshared"
+.Fc
+.Ft int
+.Fn pthread_condattr_setpshared "pthread_condattr_t *attr" "int pshared"
+.Sh DESCRIPTION
+Condition attribute objects are used to specify parameters to
+.Fn pthread_cond_init .
+.Pp
+The
+.Fn pthread_condattr_init
+function initializes a condition attribute object with the default attributes.
+.Pp
+The
+.Fn pthread_condattr_destroy
+function destroys a condition attribute object.
+.Pp
+The
+.Fn pthread_condattr_getclock
+function will put the value of the clock attribute from
+.Fa attr
+into the memory area pointed to by
+.Fa clock_id .
+The
+.Fn pthread_condattr_setclock
+function will set the clock attribute of
+.Fa attr
+to the value specified in
+.Fa clock_id .
+The clock attribute affects the interpretation of
+.Fa abstime
+in
+.Xr pthread_cond_timedwait 3
+and may be set to
+.Dv CLOCK_REALTIME
+(default),
+.Dv CLOCK_TAI ,
+or
+.Dv CLOCK_MONOTONIC .
+.Pp
+The
+.Fn pthread_condattr_getpshared
+function will put the value of the process-shared attribute from
+.Fa attr
+into the memory area pointed to by
+.Fa pshared .
+The
+.Fn pthread_condattr_setpshared
+function will set the process-shared attribute of
+.Fa attr
+to the value specified in
+.Fa pshared .
+The argument
+.Fa pshared
+may have one of the following values:
+.Bl -tag -width ".Dv PTHREAD_PROCESS_PRIVATE"
+.It Dv PTHREAD_PROCESS_PRIVATE
+The condition variable it is attached to may only be accessed by
+threads in the same process as the one that created the object.
+.It Dv PTHREAD_PROCESS_SHARED
+The condition variable it is attached to may be accessed by
+threads in processes other than the one that created the object.
+.El
+See
+.Xr libthr 3
+for details of the implementation of shared condition variables,
+and their limitations.
+.Sh RETURN VALUES
+If successful, these functions return 0.
+Otherwise, an error number is returned to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_condattr_init
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er ENOMEM
+Out of memory.
+.El
+.Pp
+The
+.Fn pthread_condattr_destroy
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Invalid value for
+.Fa attr .
+.El
+.Pp
+The
+.Fn pthread_condattr_setclock
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified in
+.Fa clock_id
+is not one of the allowed values.
+.El
+.Pp
+The
+.Fn pthread_condattr_setpshared
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified in
+.Fa pshared
+is not one of the allowed values.
+.El
+.Sh SEE ALSO
+.Xr libthr 3 ,
+.Xr pthread_cond_init 3 ,
+.Xr pthread_cond_timedwait 3
+.Sh STANDARDS
+The
+.Fn pthread_condattr_init
+and
+.Fn pthread_condattr_destroy
+functions conform to
+.St -p1003.1-96
diff --git a/static/freebsd/man3/pthread_create.3 b/static/freebsd/man3/pthread_create.3
new file mode 100644
index 00000000..2d43ac7b
--- /dev/null
+++ b/static/freebsd/man3/pthread_create.3
@@ -0,0 +1,147 @@
+.\" Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>.
+.\" All rights reserved.
+.\"
+.\" 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. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by John Birrell.
+.\" 4. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd August 17, 2018
+.Dt PTHREAD_CREATE 3
+.Os
+.Sh NAME
+.Nm pthread_create
+.Nd create a new thread
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_create "pthread_t *restrict thread" "const pthread_attr_t *restrict attr" "void *(*start_routine)(void *)" "void *restrict arg"
+.Sh DESCRIPTION
+The
+.Fn pthread_create
+function is used to create a new thread, with attributes specified by
+.Fa attr ,
+within a process.
+If
+.Fa attr
+is
+.Dv NULL ,
+the default attributes are used.
+If the attributes specified by
+.Fa attr
+are modified later, the thread's attributes are not affected.
+Upon
+successful completion
+.Fn pthread_create
+will store the ID of the created thread in the location specified by
+.Fa thread .
+.Pp
+The thread is created executing
+.Fa start_routine
+with
+.Fa arg
+as its sole argument.
+If the
+.Fa start_routine
+returns, the effect is as if there was an implicit call to
+.Fn pthread_exit
+using the return value of
+.Fa start_routine
+as the exit status.
+Note that the thread in which
+.Fn main
+was originally invoked differs from this.
+When it returns from
+.Fn main ,
+the effect is as if there was an implicit call to
+.Fn exit
+using the return value of
+.Fn main
+as the exit status.
+.Pp
+The signal state of the new thread is initialized as:
+.Bl -bullet -offset indent
+.It
+The signal mask is inherited from the creating thread.
+.It
+The set of signals pending for the new thread is empty.
+.El
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_create
+function will return zero.
+Otherwise an error number will be returned to
+indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_create
+function can return any of the following errors:
+.Bl -tag -width Er
+.It Bq Er ENOMEM
+The system lacked the necessary resources to create another thread.
+.It Bq Er EAGAIN
+The system-imposed limit on the total number of threads in a process
+.Dv [PTHREAD_THREADS_MAX]
+would be exceeded.
+.It Bq Er EAGAIN
+The
+.Dv RACCT_NTHR
+limit would be exceeded; see
+.Xr racct 2 .
+.It Bq Er EPERM
+The caller does not have permission to set the scheduling parameters or
+scheduling policy.
+.It Bq Er EINVAL
+A value specified by
+.Fa attr
+is invalid.
+.It Bq Er EDEADLK
+The CPU set specified by
+.Fa attr
+would prevent the thread from running on any CPU.
+.It Bq Er EFAULT
+The stack base specified by
+.Fa attr
+is invalid, or the kernel was unable to put required
+initial data on the stack.
+.El
+.Sh SEE ALSO
+.Xr cpuset_setaffinity 2 ,
+.Xr fork 2 ,
+.Xr racct 2 ,
+.Xr thr_new 2 ,
+.Xr pthread_attr 3 ,
+.Xr pthread_cancel 3 ,
+.Xr pthread_cleanup_pop 3 ,
+.Xr pthread_cleanup_push 3 ,
+.Xr pthread_exit 3 ,
+.Xr pthread_join 3
+.Sh STANDARDS
+The
+.Fn pthread_create
+function conforms to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_detach.3 b/static/freebsd/man3/pthread_detach.3
new file mode 100644
index 00000000..93bead1c
--- /dev/null
+++ b/static/freebsd/man3/pthread_detach.3
@@ -0,0 +1,89 @@
+.\" Copyright (c) 1996-1998 John Birrell <jb@cimlogic.com.au>.
+.\" All rights reserved.
+.\"
+.\" 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. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by John Birrell.
+.\" 4. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd April 4, 1996
+.Dt PTHREAD_DETACH 3
+.Os
+.Sh NAME
+.Nm pthread_detach
+.Nd detach a thread
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_detach "pthread_t thread"
+.Sh DESCRIPTION
+The
+.Fn pthread_detach
+function is used to indicate to the implementation that storage for the
+thread
+.Fa thread
+can be reclaimed when the thread terminates.
+If
+.Fa thread
+has not terminated,
+.Fn pthread_detach
+will not cause it to terminate.
+The effect of multiple
+.Fn pthread_detach
+calls on the same target thread is unspecified.
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_detach
+function will return zero.
+Otherwise an error number will be returned to
+indicate the error.
+Note that the function does not change the value
+of errno as it did for some drafts of the standard.
+These early drafts
+also passed a pointer to pthread_t as the argument.
+Beware!
+.Sh ERRORS
+The
+.Fn pthread_detach
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The implementation has detected that the value specified by
+.Fa thread
+does not refer to a joinable thread.
+.It Bq Er ESRCH
+No thread could be found corresponding to that specified by the given
+thread ID,
+.Fa thread .
+.El
+.Sh SEE ALSO
+.Xr pthread_join 3
+.Sh STANDARDS
+The
+.Fn pthread_detach
+function conforms to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_equal.3 b/static/freebsd/man3/pthread_equal.3
new file mode 100644
index 00000000..6ef861bc
--- /dev/null
+++ b/static/freebsd/man3/pthread_equal.3
@@ -0,0 +1,67 @@
+.\" Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>.
+.\" All rights reserved.
+.\"
+.\" 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. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by John Birrell.
+.\" 4. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd April 4, 1996
+.Dt PTHREAD_EQUAL 3
+.Os
+.Sh NAME
+.Nm pthread_equal
+.Nd compare thread IDs
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_equal "pthread_t t1" "pthread_t t2"
+.Sh DESCRIPTION
+The
+.Fn pthread_equal
+function compares the thread IDs
+.Fa t1
+and
+.Fa t2 .
+.Sh RETURN VALUES
+The
+.Fn pthread_equal
+function will return non-zero if the thread IDs
+.Fa t1
+and
+.Fa t2
+correspond to the same thread, otherwise it will return zero.
+.Sh ERRORS
+None.
+.Sh SEE ALSO
+.Xr pthread_create 3 ,
+.Xr pthread_exit 3
+.Sh STANDARDS
+The
+.Fn pthread_equal
+function conforms to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_exit.3 b/static/freebsd/man3/pthread_exit.3
new file mode 100644
index 00000000..5c8f6ac4
--- /dev/null
+++ b/static/freebsd/man3/pthread_exit.3
@@ -0,0 +1,105 @@
+.\" Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>.
+.\" All rights reserved.
+.\"
+.\" 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. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by John Birrell.
+.\" 4. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd March 15, 2014
+.Dt PTHREAD_EXIT 3
+.Os
+.Sh NAME
+.Nm pthread_exit
+.Nd terminate the calling thread
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft void
+.Fn pthread_exit "void *value_ptr"
+.Sh DESCRIPTION
+The
+.Fn pthread_exit
+function terminates the calling thread and makes the value
+.Fa value_ptr
+available to any successful join with the terminating thread.
+Any
+cancellation cleanup handlers that have been pushed and are not yet popped
+are popped in the reverse order that they were pushed and then executed.
+After all cancellation handlers have been executed, if the thread has any
+thread-specific data, appropriate destructor functions are called in an
+unspecified order.
+Thread termination does not release any application
+visible process resources, including, but not limited to, mutexes and
+file descriptors, nor does it perform any process level cleanup
+actions, including, but not limited to, calling
+.Fn atexit
+routines that may exist.
+.Pp
+An implicit call to
+.Fn pthread_exit
+is made when a thread other than the thread in which
+.Fn main
+was first invoked returns from the start routine that was used to create
+it.
+The function's return value serves as the thread's exit status.
+.Pp
+The behavior of
+.Fn pthread_exit
+is undefined if called from a cancellation handler or destructor function
+that was invoked as the result of an implicit or explicit call to
+.Fn pthread_exit .
+.Pp
+After a thread has terminated, the result of access to local (auto)
+variables of the thread is undefined.
+Thus, references to local variables
+of the exiting thread should not be used for the
+.Fn pthread_exit
+.Fa value_ptr
+parameter value.
+.Pp
+The process will exit with an exit status of 0 after the last thread has
+been terminated.
+The behavior is as if the implementation called
+.Fn exit
+with a zero argument at thread termination time.
+.Sh RETURN VALUES
+The
+.Fn pthread_exit
+function cannot return to its caller.
+.Sh ERRORS
+None.
+.Sh SEE ALSO
+.Xr _exit 2 ,
+.Xr exit 3 ,
+.Xr pthread_cancel 3 ,
+.Xr pthread_create 3 ,
+.Xr pthread_join 3
+.Sh STANDARDS
+The
+.Fn pthread_exit
+function conforms to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_getconcurrency.3 b/static/freebsd/man3/pthread_getconcurrency.3
new file mode 100644
index 00000000..c94e7b9e
--- /dev/null
+++ b/static/freebsd/man3/pthread_getconcurrency.3
@@ -0,0 +1,113 @@
+.\" Copyright (c) 2003 Sergey Osokin <osa@FreeBSD.org.ru>
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.Dd April 11, 2003
+.Dt PTHREAD_GETCONCURRENCY 3
+.Os
+.Sh NAME
+.Nm pthread_getconcurrency ,
+.Nm pthread_setconcurrency
+.Nd get or set level of concurrency
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_getconcurrency void
+.Ft int
+.Fn pthread_setconcurrency "int new_level"
+.Sh DESCRIPTION
+The
+.Fn pthread_setconcurrency
+function allows an application to inform the threads implementation
+of its desired concurrency level,
+.Fa new_level .
+The actual level of concurrency provided by the implementation
+as a result of this function call is unspecified.
+If
+.Fa new_level
+is zero, it causes the implementation to maintain the concurrency
+level at its discretion as if
+.Fn pthread_setconcurrency
+was never called.
+The
+.Fn pthread_getconcurrency
+function returns the value set by a previous call to the
+.Fn pthread_setconcurrency
+function.
+If the
+.Fn pthread_setconcurrency
+function was not previously called, this function returns zero to
+indicate that the implementation is maintaining the concurrency
+level.
+When an application calls
+.Fn pthread_setconcurrency ,
+it is informing the implementation of its desired concurrency
+level.
+The implementation uses this as a hint, not a requirement.
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_setconcurrency
+function returns zero.
+Otherwise, an error number is returned
+to indicate the error.
+The
+.Fn pthread_getconcurrency
+function always returns the concurrency level set by a previous
+call to
+.Fn pthread_setconcurrency .
+If the
+.Fn pthread_setconcurrency
+function has never been called,
+.Fn pthread_getconcurrency
+returns zero.
+.Sh ERRORS
+The
+.Fn pthread_setconcurrency
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa new_level
+is negative.
+.It Bq Er EAGAIN
+The value specified by
+.Fa new_level
+would cause a system resource to be exceeded.
+.El
+.Sh APPLICATION USAGE
+Use of these functions changes the state of the underlying
+concurrency upon which the application depends.
+Library developers are advised to not use the
+.Fn pthread_getconcurrency
+and
+.Fn pthread_setconcurrency
+functions since their use may conflict with an application's
+use of these functions.
+.Sh STANDARDS
+The
+.Fn pthread_getconcurrency
+and
+.Fn pthread_setconcurrency
+functions conform to
+.St -susv2 .
diff --git a/static/freebsd/man3/pthread_getcpuclockid.3 b/static/freebsd/man3/pthread_getcpuclockid.3
new file mode 100644
index 00000000..b372d2df
--- /dev/null
+++ b/static/freebsd/man3/pthread_getcpuclockid.3
@@ -0,0 +1,84 @@
+.\" Copyright (c) 2012 David Xu <davidxu@FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.\" Portions of this text are reprinted and reproduced in electronic form
+.\" from IEEE Std 1003.1, 2004 Edition, Standard for Information Technology --
+.\" Portable Operating System Interface (POSIX), The Open Group Base
+.\" Specifications Issue 6, Copyright (C) 2001-2004 by the Institute of
+.\" Electrical and Electronics Engineers, Inc and The Open Group.  In the
+.\" event of any discrepancy between this version and the original IEEE and
+.\" The Open Group Standard, the original IEEE and The Open Group Standard is
+.\" the referee document.  The original Standard can be obtained online at
+.\"	http://www.opengroup.org/unix/online.html.
+.\"
+.Dd August 21, 2012
+.Dt PTHREAD_GETCPUCLOCKID 3
+.Os
+.Sh NAME
+.Nm pthread_getcpuclockid
+.Nd access a thread CPU-time clock
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.In time.h
+.Ft int
+.Fn pthread_getcpuclockid "pthread_t thread_id" "clockid_t *clock_id"
+.Sh DESCRIPTION
+The
+.Fn pthread_getcpuclockid
+returns the clock ID of the CPU-time clock of the thread specified by
+.Fa thread_id ,
+if the thread described by
+.Fa thread_id
+exists.
+.Sh RETURN VALUES
+Upon successful completion,
+.Fn pthread_getcpuclockid
+returns zero; otherwise, an error number is returned to indicate the
+error.
+.Sh ERRORS
+The
+.Fn pthread_getcpuclockid
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er ESRCH
+The value specified by
+.Fa thread_id
+does not refer to an existing thread.
+.El
+.Sh SEE ALSO
+.Xr clock_gettime 2
+.Sh STANDARDS
+The
+.Fn pthread_getcpuclockid
+function conforms to
+.St -p1003.1-2004 .
+.Sh HISTORY
+The
+.Fn pthread_getcpuclockid
+function first appeared in
+.Fx 10.0 .
+.Sh AUTHORS
+.An David Xu Aq Mt davidxu@FreeBSD.org
diff --git a/static/freebsd/man3/pthread_getspecific.3 b/static/freebsd/man3/pthread_getspecific.3
new file mode 100644
index 00000000..c9a46729
--- /dev/null
+++ b/static/freebsd/man3/pthread_getspecific.3
@@ -0,0 +1,88 @@
+.\" Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>.
+.\" All rights reserved.
+.\"
+.\" 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. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by John Birrell.
+.\" 4. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd April 4, 1996
+.Dt PTHREAD_GETSPECIFIC 3
+.Os
+.Sh NAME
+.Nm pthread_getspecific
+.Nd get a thread-specific data value
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft void *
+.Fn pthread_getspecific "pthread_key_t key"
+.Sh DESCRIPTION
+The
+.Fn pthread_getspecific
+function returns the value currently bound to the specified
+.Fa key
+on behalf of the calling thread.
+.Pp
+The effect of calling
+.Fn pthread_getspecific
+with a
+.Fa key
+value not obtained from
+.Fn pthread_key_create
+or after
+.Fa key
+has been deleted with
+.Fn pthread_key_delete
+is undefined.
+.Pp
+The
+.Fn pthread_getspecific
+function may be called from a thread-specific data destructor function.
+A call to
+.Fn pthread_getspecific
+for the thread-specific data key being destroyed returns the value NULL,
+unless the value is changed (after the destructor starts) by a call to
+.Fn pthread_setspecific .
+.Sh RETURN VALUES
+The
+.Fn pthread_getspecific
+function will return the thread-specific data value associated with the given
+.Fa key .
+If no thread-specific data value is associated with
+.Fa key ,
+then the value NULL is returned.
+.Sh ERRORS
+None.
+.Sh SEE ALSO
+.Xr pthread_key_create 3 ,
+.Xr pthread_key_delete 3 ,
+.Xr pthread_setspecific 3
+.Sh STANDARDS
+The
+.Fn pthread_getspecific
+function conforms to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_getthreadid_np.3 b/static/freebsd/man3/pthread_getthreadid_np.3
new file mode 100644
index 00000000..da7ae545
--- /dev/null
+++ b/static/freebsd/man3/pthread_getthreadid_np.3
@@ -0,0 +1,55 @@
+.\" Copyright (c) 2011 Jung-uk Kim <jkim@FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd October 12, 2021
+.Dt PTHREAD_GETTHREADID_NP 3
+.Os
+.Sh NAME
+.Nm pthread_getthreadid_np
+.Nd get the calling thread's integral ID
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread_np.h
+.Ft int
+.Fn pthread_getthreadid_np void
+.Sh DESCRIPTION
+The
+.Fn pthread_getthreadid_np
+function returns the unique integral ID of the calling thread.
+Its semantics is similar to the AIX's
+.Fn pthread_getthreadid_np
+function.
+.Sh RETURN VALUES
+The
+.Fn pthread_getthreadid_np
+function returns the thread integral ID of the calling thread.
+.Sh ERRORS
+None.
+.Sh SEE ALSO
+.Xr pthread_np 3 ,
+.Xr pthread_self 3
+.Sh AUTHORS
+This manual page was written by
+.An Jung-uk Kim Aq Mt jkim@FreeBSD.org .
diff --git a/static/freebsd/man3/pthread_join.3 b/static/freebsd/man3/pthread_join.3
new file mode 100644
index 00000000..671ce7bb
--- /dev/null
+++ b/static/freebsd/man3/pthread_join.3
@@ -0,0 +1,194 @@
+.\" Copyright (c) 1996-1998 John Birrell <jb@cimlogic.com.au>.
+.\" All rights reserved.
+.\"
+.\" 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. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by John Birrell.
+.\" 4. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd October 12, 2021
+.Dt PTHREAD_JOIN 3
+.Os
+.Sh NAME
+.Nm pthread_join ,
+.Nm pthread_peekjoin_np ,
+.Nm pthread_timedjoin_np
+.Nm pthread_tryjoin_np
+.Nd inspect thread termination state
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_join "pthread_t thread" "void **value_ptr"
+.In pthread_np.h
+.Ft int
+.Fo pthread_peekjoin_np
+.Fa "pthread_t thread"
+.Fa "void **value_ptr"
+.Fc
+.Ft int
+.Fo pthread_timedjoin_np
+.Fa "pthread_t thread"
+.Fa "void **value_ptr"
+.Fa "const struct timespec *abstime"
+.Fc
+.Ft int
+.Fn pthread_tryjoin_np "pthread_t thread" "void **value_ptr"
+.Sh DESCRIPTION
+The
+.Fn pthread_join
+function suspends execution of the calling thread until the target
+.Fa thread
+terminates unless the target
+.Fa thread
+has already terminated.
+.Pp
+On return from a successful
+.Fn pthread_join
+call with a non-NULL
+.Fa value_ptr
+argument, the value passed to
+.Fn pthread_exit
+by the terminating thread is stored in the location referenced by
+.Fa value_ptr .
+When a
+.Fn pthread_join
+returns successfully, the target thread has been terminated.
+The results
+of multiple simultaneous calls to
+.Fn pthread_join
+specifying the same target thread are undefined.
+If the thread calling
+.Fn pthread_join
+is cancelled, then the target thread is not detached.
+.Pp
+The
+.Fn pthread_timedjoin_np
+function is equivalent to the
+.Fn pthread_join
+function except it will return
+.Er ETIMEDOUT
+if target thread does not exit before specified absolute time passes.
+.Pp
+The
+.Fn pthread_peekjoin_np
+only peeks into the exit status of the specified thread.
+If the thread has not exited, the
+.Er EBUSY
+error is returned.
+Otherwise, zero is returned and the thread exit value is optionally stored
+into the location of
+.Fa *value_ptr .
+The target thread is left unjoined and can be used as an argument for
+the
+.Fn pthread_join
+family of functions again.
+.Pp
+The
+.Fn pthread_tryjoin_np
+function joins the thread if it is already terminated, same as
+.Fn pthread_join .
+If the thread has not yet terminated, the function returns
+.Er EBUSY .
+.Pp
+A thread that has exited but remains unjoined counts against
+[_POSIX_THREAD_THREADS_MAX].
+.Sh RETURN VALUES
+If successful, the described functions return zero.
+Otherwise an error number is returned to indicate the error or
+special condition.
+.Sh ERRORS
+The
+.Fn pthread_join ,
+.Fn pthread_peekjoin_np ,
+and
+.Fn pthread_timedjoin_np
+functions will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The implementation has detected that the value specified by
+.Fa thread
+does not refer to a joinable thread.
+.It Bq Er ESRCH
+No thread could be found corresponding to that specified by the given
+thread ID,
+.Fa thread .
+.It Bq Er EDEADLK
+A deadlock was detected or the value of
+.Fa thread
+specifies the calling thread.
+.It Bq Er EOPNOTSUPP
+The implementation detected that another caller is already waiting on
+.Fa thread .
+.El
+.Pp
+Additionally, the
+.Fn pthread_timedjoin_np
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er ETIMEDOUT
+The specified absolute time passed while
+.Fn pthread_timedjoin_np
+waited for thread exit.
+.El
+.Pp
+The
+.Fn pthread_peekjoin_np
+and
+.Fn pthread_tryjoin_np
+functions will also fail if:
+.Bl -tag -width Er
+.It Bq Er EBUSY
+The specified thread has not yet exited.
+.El
+.Sh SEE ALSO
+.Xr wait 2 ,
+.Xr pthread 3 ,
+.Xr pthread_create 3 ,
+.Xr pthread_np 3
+.Sh STANDARDS
+The
+.Fn pthread_join
+function conforms to
+.St -p1003.1-96 .
+The
+.Fn pthread_timedjoin_np
+function is a
+.Fx
+extension which first appeared in
+.Fx 6.1 .
+The
+.Fn pthread_peekjoin_np
+function is a
+.Fx
+extension which first appearead in
+.Fx 13.0 .
+The
+.Fn pthread_tryjoin_np
+function is a
+.Fx
+extension which first appearead in
+.Fx 16.0 .
diff --git a/static/freebsd/man3/pthread_key_create.3 b/static/freebsd/man3/pthread_key_create.3
new file mode 100644
index 00000000..0faf0a07
--- /dev/null
+++ b/static/freebsd/man3/pthread_key_create.3
@@ -0,0 +1,107 @@
+.\" Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>.
+.\" All rights reserved.
+.\"
+.\" 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. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by John Birrell.
+.\" 4. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd April 4, 1996
+.Dt PTHREAD_KEY_CREATE 3
+.Os
+.Sh NAME
+.Nm pthread_key_create
+.Nd thread-specific data key creation
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_key_create "pthread_key_t *key" "void (*destructor)(void *)"
+.Sh DESCRIPTION
+The
+.Fn pthread_key_create
+function creates a thread-specific data key visible to all threads in the
+process.
+Key values provided by
+.Fn pthread_key_create
+are opaque objects used to locate thread-specific data.
+Although the same
+key value may be used by different threads, the values bound to the key
+by
+.Fn pthread_setspecific
+are maintained on a per-thread basis and persist for the life of the calling
+thread.
+.Pp
+Upon key creation, the value NULL is associated with the new key in all
+active threads.
+Upon thread creation, the value NULL is associated with all
+defined keys in the new thread.
+.Pp
+An optional destructor function may be associated with each key value.
+At
+thread exit, if a key value has a non-NULL destructor pointer, and the
+thread has a non-NULL value associated with the key, the function pointed
+to is called with the current associated value as its sole argument.
+The
+order of destructor calls is unspecified if more than one destructor exists
+for a thread when it exits.
+.Pp
+If, after all the destructors have been called for all non-NULL values
+with associated destructors, there are still some non-NULL values with
+associated destructors, then the process is repeated.
+If, after at least
+[PTHREAD_DESTRUCTOR_ITERATIONS] iterations of destructor calls for
+outstanding non-NULL values, there are still some non-NULL values with
+associated destructors, the implementation stops calling destructors.
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_key_create
+function will store the newly created key value at the location specified by
+.Fa key
+and returns zero.
+Otherwise an error number will be returned to indicate
+the error.
+.Sh ERRORS
+The
+.Fn pthread_key_create
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EAGAIN
+The system lacked the necessary resources to create another thread-specific
+data key, or the system-imposed limit on the total number of keys per process
+[PTHREAD_KEYS_MAX] would be exceeded.
+.It Bq Er ENOMEM
+Insufficient memory exists to create the key.
+.El
+.Sh SEE ALSO
+.Xr pthread_getspecific 3 ,
+.Xr pthread_key_delete 3 ,
+.Xr pthread_setspecific 3
+.Sh STANDARDS
+The
+.Fn pthread_key_create
+function conforms to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_key_delete.3 b/static/freebsd/man3/pthread_key_delete.3
new file mode 100644
index 00000000..884b261c
--- /dev/null
+++ b/static/freebsd/man3/pthread_key_delete.3
@@ -0,0 +1,98 @@
+.\" Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>.
+.\" All rights reserved.
+.\"
+.\" 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. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by John Birrell.
+.\" 4. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd April 4, 1996
+.Dt PTHREAD_KEY_DELETE 3
+.Os
+.Sh NAME
+.Nm pthread_key_delete
+.Nd delete a thread-specific data key
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_key_delete "pthread_key_t key"
+.Sh DESCRIPTION
+The
+.Fn pthread_key_delete
+function deletes a thread-specific data key previously returned by
+.Fn pthread_key_create .
+The thread-specific data values associated with
+.Fa key
+need not be NULL at the time that
+.Fn pthread_key_delete
+is called.
+It is the responsibility of the application to free any
+application storage or perform any cleanup actions for data structures
+related to the deleted key or associated thread-specific data in any threads;
+this cleanup can be done either before or after
+.Fn pthread_key_delete
+is called.
+Any attempt to use
+.Fa key
+following the call to
+.Fn pthread_key_delete
+results in undefined behavior.
+.Pp
+The
+.Fn pthread_key_delete
+function is callable from within destructor functions.
+Destructor functions
+are not invoked by
+.Fn pthread_key_delete .
+Any destructor function that may have been associated with
+.Fa key
+will no longer be called upon thread exit.
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_key_delete
+function will return zero.
+Otherwise an error number will be returned to
+indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_key_delete
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The
+.Fa key
+value is invalid.
+.El
+.Sh SEE ALSO
+.Xr pthread_getspecific 3 ,
+.Xr pthread_key_create 3 ,
+.Xr pthread_setspecific 3
+.Sh STANDARDS
+The
+.Fn pthread_key_delete
+function conforms to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_kill.3 b/static/freebsd/man3/pthread_kill.3
new file mode 100644
index 00000000..cb2d76c6
--- /dev/null
+++ b/static/freebsd/man3/pthread_kill.3
@@ -0,0 +1,75 @@
+.\" Copyright (C) 2000 Jason Evans <jasone@FreeBSD.org>.
+.\" All rights reserved.
+.\"
+.\" 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(s), this list of conditions and the following disclaimer as
+.\"    the first lines of this file unmodified other than the possible
+.\"    addition of one or more copyright notices.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice(s), this list of conditions and the following disclaimer in
+.\"    the documentation and/or other materials provided with the
+.\"    distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``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 COPYRIGHT HOLDER(S) 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.
+.Dd April 27, 2000
+.Dt PTHREAD_KILL 3
+.Os
+.Sh NAME
+.Nm pthread_kill
+.Nd send a signal to a specified thread
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.In signal.h
+.Ft int
+.Fn pthread_kill "pthread_t thread" "int sig"
+.Sh DESCRIPTION
+The
+.Fn pthread_kill
+function sends a signal, specified by
+.Fa sig ,
+to a thread, specified by
+.Fa thread .
+If
+.Fa sig
+is 0, error checking is performed, but no signal is actually sent.
+.Sh RETURN VALUES
+If successful,
+.Fn pthread_kill
+returns 0.
+Otherwise, an error number is returned.
+.Sh ERRORS
+The
+.Fn pthread_kill
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er ESRCH
+.Fa thread
+is an invalid thread ID.
+.It Bq Er EINVAL
+.Fa sig
+is an invalid or unsupported signal number.
+.El
+.Sh SEE ALSO
+.Xr kill 2 ,
+.Xr pthread_self 3 ,
+.Xr raise 3
+.Sh STANDARDS
+The
+.Fn pthread_kill
+function conforms to
+.St -p1003.1-96
diff --git a/static/freebsd/man3/pthread_main_np.3 b/static/freebsd/man3/pthread_main_np.3
new file mode 100644
index 00000000..58e3b11d
--- /dev/null
+++ b/static/freebsd/man3/pthread_main_np.3
@@ -0,0 +1,59 @@
+.\" Copyright (c) 2003 Alexey Zelkin <phantom@FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd October 12, 2021
+.Dt PTHREAD_MAIN_NP 3
+.Os
+.Sh NAME
+.Nm pthread_main_np
+.Nd identify the initial thread
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread_np.h
+.Ft int
+.Fn pthread_main_np void
+.Sh DESCRIPTION
+The
+.Fn pthread_main_np
+function
+is used in userland threads environment to identify the initial thread.
+Its semantics is similar to the Solaris's
+.Fn thr_main
+function.
+.Sh RETURN VALUES
+The
+.Fn pthread_main_np
+function returns
+1 if the calling thread is the initial thread,
+0 if the calling thread is not the initial thread,
+and \-1 if the thread's initialization has not yet completed.
+.Sh SEE ALSO
+.Xr pthread_create 3 ,
+.Xr pthread_equal 3 ,
+.Xr pthread_np 3 ,
+.Xr pthread_self 3
+.Sh AUTHORS
+This manual page was written by
+.An Alexey Zelkin Aq Mt phantom@FreeBSD.org .
diff --git a/static/freebsd/man3/pthread_multi_np.3 b/static/freebsd/man3/pthread_multi_np.3
new file mode 100644
index 00000000..62c4fb45
--- /dev/null
+++ b/static/freebsd/man3/pthread_multi_np.3
@@ -0,0 +1,65 @@
+.\" Copyright (c) 2003 Alexey Zelkin <phantom@FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd October 12, 2021
+.Dt PTHREAD_MULTI_NP 3
+.Os
+.Sh NAME
+.Nm pthread_multi_np ,
+.Nm pthread_single_np
+.Nd "switch between multi- and single-threaded scheduling modes"
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread_np.h
+.Ft int
+.Fn pthread_multi_np void
+.Ft int
+.Fn pthread_single_np void
+.Sh DESCRIPTION
+The
+.Fn pthread_single_np
+function switches the process to a single-threaded mode, i.e.,
+suspends all threads except the current.
+The semantics of this function is similar to
+.Xr pthread_suspend_all_np 3 .
+.Pp
+The
+.Fn pthread_multi_np
+function switches the process to a multi-threaded mode.
+The semantics of this function is similar to
+.Xr pthread_resume_all_np 3 .
+.Sh RETURN VALUES
+The
+.Fn pthread_multi_np
+and
+.Nm pthread_single_np
+functions always return 0.
+.Sh SEE ALSO
+.Xr pthread_np 3 ,
+.Xr pthread_resume_all_np 3 ,
+.Xr pthread_suspend_all_np 3
+.Sh AUTHORS
+This manual page was written by
+.An Alexey Zelkin Aq Mt phantom@FreeBSD.org .
diff --git a/static/freebsd/man3/pthread_mutex_consistent.3 b/static/freebsd/man3/pthread_mutex_consistent.3
new file mode 100644
index 00000000..e22be52b
--- /dev/null
+++ b/static/freebsd/man3/pthread_mutex_consistent.3
@@ -0,0 +1,91 @@
+.\" Copyright (c) 2016 The FreeBSD Foundation
+.\"
+.\" This documentation was written by
+.\" Konstantin Belousov <kib@FreeBSD.org> under sponsorship
+.\" from the FreeBSD Foundation.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS 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 AUTHORS 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.
+.\"
+.Dd March 27, 2017
+.Dt PTHREAD_MUTEX_CONSISTENT 3
+.Os
+.Sh NAME
+.Nm pthread_mutex_consistent
+.Nd mark state protected by robust mutex as consistent
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_mutex_consistent "pthread_mutex_t *mutex"
+.Sh DESCRIPTION
+If the process containing the thread owning a robust mutex terminates
+while holding the mutex, the mutex becomes inconsistent and the next thread
+that acquires the mutex lock is notified of the state by the return value
+.Er EOWNERDEAD .
+In this case, the mutex does not become normally usable again until
+the state is marked consistent.
+.Pp
+The
+.Fn pthread_mutex_consistent ,
+when called with the
+.Fa mutex
+argument, which points to the initialized robust mutex in an
+inconsistent state, marks the by mutex as consistent again.
+The consequent unlock of the mutex, by either
+.Fn pthread_mutex_unlock
+or other methods, allows other contenders to lock the mutex.
+.Pp
+If the mutex in the inconsistent state is not marked consistent
+by the call to
+.Fn pthread_mutex_consistent
+before unlock,
+further attempts to lock the
+.Fa mutex
+result in the
+.Er ENOTRECOVERABLE
+condition reported by the locking functions.
+.Sh RETURN VALUES
+If successful,
+.Fn pthread_mutex_consistent
+will return zero, otherwise an error number will be returned to
+indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_mutex_lock
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The mutex pointed to by the
+.Fa mutex
+argument is not robust, or is not in the inconsistent state.
+.El
+.Sh SEE ALSO
+.Xr pthread_mutex_init 3 ,
+.Xr pthread_mutex_lock 3 ,
+.Xr pthread_mutex_unlock 3 ,
+.Xr pthread_mutexattr_setrobust 3
+.Sh STANDARDS
+The
+.Fn pthread_mutex_lock
+function conforms to
+.St -susv4 .
diff --git a/static/freebsd/man3/pthread_mutex_destroy.3 b/static/freebsd/man3/pthread_mutex_destroy.3
new file mode 100644
index 00000000..3627a6c8
--- /dev/null
+++ b/static/freebsd/man3/pthread_mutex_destroy.3
@@ -0,0 +1,72 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" 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 author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd July 29, 1998
+.Dt PTHREAD_MUTEX_DESTROY 3
+.Os
+.Sh NAME
+.Nm pthread_mutex_destroy
+.Nd free resources allocated for a mutex
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_mutex_destroy "pthread_mutex_t *mutex"
+.Sh DESCRIPTION
+The
+.Fn pthread_mutex_destroy
+function frees the resources allocated for
+.Fa mutex .
+.Sh RETURN VALUES
+If successful,
+.Fn pthread_mutex_destroy
+will return zero, otherwise an error number will be returned to
+indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_mutex_destroy
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa mutex
+is invalid.
+.It Bq Er EBUSY
+.Fa Mutex
+is locked by another thread.
+.El
+.Sh SEE ALSO
+.Xr pthread_mutex_init 3 ,
+.Xr pthread_mutex_lock 3 ,
+.Xr pthread_mutex_trylock 3 ,
+.Xr pthread_mutex_unlock 3
+.Sh STANDARDS
+The
+.Fn pthread_mutex_destroy
+function conforms to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_mutex_init.3 b/static/freebsd/man3/pthread_mutex_init.3
new file mode 100644
index 00000000..4133cf07
--- /dev/null
+++ b/static/freebsd/man3/pthread_mutex_init.3
@@ -0,0 +1,76 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" 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 author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd August 17, 2018
+.Dt PTHREAD_MUTEX_INIT 3
+.Os
+.Sh NAME
+.Nm pthread_mutex_init
+.Nd create a mutex
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_mutex_init "pthread_mutex_t *restrict mutex" "const pthread_mutexattr_t *restrict attr"
+.Sh DESCRIPTION
+The
+.Fn pthread_mutex_init
+function creates a new mutex, with attributes specified with
+.Fa attr .
+If
+.Fa attr
+is NULL the default attributes are used.
+.Sh RETURN VALUES
+If successful,
+.Fn pthread_mutex_init
+will return zero and put the new mutex id into
+.Fa mutex ,
+otherwise an error number will be returned to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_mutex_init
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa attr
+is invalid.
+.It Bq Er ENOMEM
+The process cannot allocate enough memory to create another mutex.
+.El
+.Sh SEE ALSO
+.Xr pthread_mutex_destroy 3 ,
+.Xr pthread_mutex_lock 3 ,
+.Xr pthread_mutex_trylock 3 ,
+.Xr pthread_mutex_unlock 3 ,
+.Xr pthread_mutexattr 3
+.Sh STANDARDS
+The
+.Fn pthread_mutex_init
+function conforms to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_mutex_lock.3 b/static/freebsd/man3/pthread_mutex_lock.3
new file mode 100644
index 00000000..ba54cd45
--- /dev/null
+++ b/static/freebsd/man3/pthread_mutex_lock.3
@@ -0,0 +1,86 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" 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 author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd August 7, 2019
+.Dt PTHREAD_MUTEX_LOCK 3
+.Os
+.Sh NAME
+.Nm pthread_mutex_lock
+.Nd lock a mutex
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_mutex_lock "pthread_mutex_t *mutex"
+.Sh DESCRIPTION
+The
+.Fn pthread_mutex_lock
+function locks
+.Fa mutex .
+If the mutex is already locked, the calling thread will block until the
+mutex becomes available.
+.Sh RETURN VALUES
+If successful,
+.Fn pthread_mutex_lock
+will return zero, otherwise an error number will be returned to
+indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_mutex_lock
+function will fail if:
+.Bl -tag -width "Er ENOTRECOVERABLE"
+.It Bq Er EINVAL
+The value specified by
+.Fa mutex
+is invalid.
+.It Bq Er EDEADLK
+A deadlock would occur if the thread blocked waiting for
+.Fa mutex .
+.It Bq Er EOWNERDEAD
+The argument
+.Fa mutex
+points to a robust mutex and the process containing the previous owning
+thread terminated while holding the mutex lock.
+The lock was granted to the caller and it is up to the new owner
+to make the state consistent.
+.It Bq Er ENOTRECOVERABLE
+The state protected by the
+.Fa mutex
+is not recoverable.
+.El
+.Sh SEE ALSO
+.Xr pthread_mutex_consistent 3 ,
+.Xr pthread_mutex_destroy 3 ,
+.Xr pthread_mutex_init 3 ,
+.Xr pthread_mutex_trylock 3 ,
+.Xr pthread_mutex_unlock 3
+.Sh STANDARDS
+The
+.Fn pthread_mutex_lock
+function conforms to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_mutex_timedlock.3 b/static/freebsd/man3/pthread_mutex_timedlock.3
new file mode 100644
index 00000000..b6e95edb
--- /dev/null
+++ b/static/freebsd/man3/pthread_mutex_timedlock.3
@@ -0,0 +1,113 @@
+.\" Copyright (c) 2003 Michael Telahun Makonnen
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd August 7, 2019
+.Dt PTHREAD_MUTEX_TIMEDLOCK 3
+.Os
+.Sh NAME
+.Nm pthread_mutex_timedlock
+.Nd lock a mutex without blocking indefinitely
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.In time.h
+.Ft int
+.Fn pthread_mutex_timedlock "pthread_mutex_t *restrict mutex" "const struct timespec *restrict abs_timeout"
+.Sh DESCRIPTION
+The
+.Fn pthread_mutex_timedlock
+function will lock
+.Fa mutex .
+If it is already locked the calling thread will block until
+the mutex becomes available or
+the timeout,
+specified by abs_timeout,
+expires.
+The time of the timeout is an absolute time and
+is not relative to the current time.
+.Sh RETURN VALUES
+If successful,
+.Fn pthread_mutex_timedlock
+will return zero, otherwise an error number will be returned to
+indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_mutex_timedlock
+function will fail if:
+.Bl -tag -width Er
+.It Bq "Er ENOTRECOVERABLE"
+The
+.Fa mutex
+was created with the protocol attribute having the
+value PTHREAD_PRIO_PROTECT and
+the calling thread's priority is higher than the
+mutex's current priority ceiling.
+.It Bq Er EINVAL
+The process or thread would have blocked, and
+.Fa abs_timeout
+specified a nanosecond value less than zero or
+greater than or equal to 1 billion.
+.It Bq Er EINVAL
+The
+.Fa mutex
+parameter is invalid.
+.It Bq Er ETIMEDOUT
+The
+.Fa mutex
+could not be locked before the timeout expired.
+.It Bq Er EAGAIN
+The
+.Fa mutex
+could not be acquired because the
+maximum number of recursive locks for the
+.Fa mutex
+has been exceeded.
+.It Bq Er EDEADLK
+The current thread already owns the
+.Fa mutex .
+.It Bq Er EOWNERDEAD
+The argument
+.Fa mutex
+points to a robust mutex and the process containing the previous owning
+thread terminated while holding the mutex lock.
+The lock was granted to the caller and it is up to the new owner
+to make the state consistent.
+.It Bq Er ENOTRECOVERABLE
+The state protected by the
+.Fa mutex
+is not recoverable.
+.El
+.Sh SEE ALSO
+.Xr pthread_mutex_consistent 3 ,
+.Xr pthread_mutex_destroy 3 ,
+.Xr pthread_mutex_init 3 ,
+.Xr pthread_mutex_lock 3 ,
+.Xr pthread_mutex_trylock 3 ,
+.Xr pthread_mutex_unlock 3
+.Sh STANDARDS
+The
+.Fn pthread_mutex_timedlock
+function is expected to conform to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_mutex_trylock.3 b/static/freebsd/man3/pthread_mutex_trylock.3
new file mode 100644
index 00000000..cd08d760
--- /dev/null
+++ b/static/freebsd/man3/pthread_mutex_trylock.3
@@ -0,0 +1,87 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" 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 author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd August 7, 2019
+.Dt PTHREAD_MUTEX_TRYLOCK 3
+.Os
+.Sh NAME
+.Nm pthread_mutex_trylock
+.Nd attempt to lock a mutex without blocking
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_mutex_trylock "pthread_mutex_t *mutex"
+.Sh DESCRIPTION
+The
+.Fn pthread_mutex_trylock
+function locks
+.Fa mutex .
+If the mutex is already locked,
+.Fn pthread_mutex_trylock
+will not block waiting for the mutex, but will return an error condition.
+.Sh RETURN VALUES
+If successful,
+.Fn pthread_mutex_trylock
+will return zero, otherwise an error number will be returned to
+indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_mutex_trylock
+function will fail if:
+.Bl -tag -width "Er ENOTRECOVERABLE"
+.It Bq Er EINVAL
+The value specified by
+.Fa mutex
+is invalid.
+.It Bq Er EBUSY
+.Fa Mutex
+is already locked.
+.It Bq Er EOWNERDEAD
+The argument
+.Fa mutex
+points to a robust mutex and the process containing the previous owning
+thread terminated while holding the mutex lock.
+The lock was granted to the caller and it is up to the new owner
+to make the state consistent.
+.It Bq Er ENOTRECOVERABLE
+The state protected by the
+.Fa mutex
+is not recoverable.
+.El
+.Sh SEE ALSO
+.Xr pthread_mutex_consistent 3 ,
+.Xr pthread_mutex_destroy 3 ,
+.Xr pthread_mutex_init 3 ,
+.Xr pthread_mutex_lock 3 ,
+.Xr pthread_mutex_unlock 3
+.Sh STANDARDS
+The
+.Fn pthread_mutex_trylock
+function conforms to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_mutex_unlock.3 b/static/freebsd/man3/pthread_mutex_unlock.3
new file mode 100644
index 00000000..eb6866a2
--- /dev/null
+++ b/static/freebsd/man3/pthread_mutex_unlock.3
@@ -0,0 +1,85 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" 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 author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd April 29, 2016
+.Dt PTHREAD_MUTEX_UNLOCK 3
+.Os
+.Sh NAME
+.Nm pthread_mutex_unlock
+.Nd unlock a mutex
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_mutex_unlock "pthread_mutex_t *mutex"
+.Sh DESCRIPTION
+If the current thread holds the lock on
+.Fa mutex ,
+then the
+.Fn pthread_mutex_unlock
+function unlocks
+.Fa mutex .
+.Pp
+If the argument pointed by the
+.Fa mutex
+is a robust mutex in the inconsistent state, and the call to
+.Fn pthread_mutex_consistent
+function was not done prior to unlocking, further locking attempts on
+the mutex
+.Fa mutex
+are denied and locking functions return
+.Er ENOTRECOVERABLE
+error.
+.Sh RETURN VALUES
+If successful,
+.Fn pthread_mutex_unlock
+will return zero, otherwise an error number will be returned to
+indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_mutex_unlock
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa mutex
+is invalid.
+.It Bq Er EPERM
+The current thread does not hold a lock on
+.Fa mutex .
+.El
+.Sh SEE ALSO
+.Xr pthread_mutex_destroy 3 ,
+.Xr pthread_mutex_init 3 ,
+.Xr pthread_mutex_lock 3 ,
+.Xr pthread_mutex_trylock 3
+.Sh STANDARDS
+The
+.Fn pthread_mutex_unlock
+function conforms to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_mutexattr.3 b/static/freebsd/man3/pthread_mutexattr.3
new file mode 100644
index 00000000..b18d93e2
--- /dev/null
+++ b/static/freebsd/man3/pthread_mutexattr.3
@@ -0,0 +1,368 @@
+.\" Copyright (C) 2000 Jason Evans <jasone@FreeBSD.org>.
+.\" Copyright (c) 2021 The FreeBSD Foundation
+.\" All rights reserved.
+.\"
+.\" Part of this documentation was written by
+.\" Konstantin Belousov <kib@FreeBSD.org> under sponsorship
+.\" from the FreeBSD Foundation.
+.\"
+.\" 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(s), this list of conditions and the following disclaimer as
+.\"    the first lines of this file unmodified other than the possible
+.\"    addition of one or more copyright notices.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice(s), this list of conditions and the following disclaimer in
+.\"    the documentation and/or other materials provided with the
+.\"    distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``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 COPYRIGHT HOLDER(S) 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.
+.Dd October 27, 2023
+.Dt PTHREAD_MUTEXATTR 3
+.Os
+.Sh NAME
+.Nm pthread_mutexattr_init ,
+.Nm pthread_mutexattr_destroy ,
+.Nm pthread_mutexattr_setprioceiling ,
+.Nm pthread_mutexattr_getprioceiling ,
+.Nm pthread_mutexattr_setprotocol ,
+.Nm pthread_mutexattr_getprotocol ,
+.Nm pthread_mutexattr_setpshared ,
+.Nm pthread_mutexattr_getpshared ,
+.Nm pthread_mutexattr_setrobust ,
+.Nm pthread_mutexattr_getrobust ,
+.Nm pthread_mutexattr_settype ,
+.Nm pthread_mutexattr_gettype
+.Nd mutex attribute operations
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_mutexattr_init "pthread_mutexattr_t *attr"
+.Ft int
+.Fn pthread_mutexattr_destroy "pthread_mutexattr_t *attr"
+.Ft int
+.Fo pthread_mutexattr_setprioceiling
+.Fa "pthread_mutexattr_t *attr" "int prioceiling"
+.Fc
+.Ft int
+.Fo pthread_mutexattr_getprioceiling
+.Fa "const pthread_mutexattr_t *attr" "int *prioceiling"
+.Fc
+.Ft int
+.Fn pthread_mutexattr_setprotocol "pthread_mutexattr_t *attr" "int protocol"
+.Ft int
+.Fo pthread_mutexattr_getprotocol
+.Fa "const pthread_mutexattr_t *restrict attr" "int *restrict protocol"
+.Fc
+.Ft int
+.Fo pthread_mutexattr_setpshared
+.Fa "pthread_mutexattr_t *attr" "int shared"
+.Fc
+.Ft int
+.Fo pthread_mutexattr_getpshared
+.Fa "const pthread_mutexattr_t *attr" "int *shared"
+.Fc
+.Ft int
+.Fn pthread_mutexattr_setrobust "pthread_mutexattr_t *attr" "int robust"
+.Ft int
+.Fn pthread_mutexattr_getrobust "pthread_mutexattr_t *attr" "int *robust"
+.Ft int
+.Fn pthread_mutexattr_settype "pthread_mutexattr_t *attr" "int type"
+.Ft int
+.Fo pthread_mutexattr_gettype
+.Fa "const pthread_mutexattr_t *restrict attr" "int *restrict type"
+.Fc
+.Sh DESCRIPTION
+Mutex attributes are used to specify parameters to
+.Fn pthread_mutex_init .
+One attribute object can be used in multiple calls to
+.Fn pthread_mutex_init ,
+with or without modifications between calls.
+.Pp
+The
+.Fn pthread_mutexattr_init
+function initializes
+.Fa attr
+with all the default mutex attributes.
+.Pp
+The
+.Fn pthread_mutexattr_destroy
+function destroys
+.Fa attr .
+.Pp
+The
+.Fn pthread_mutexattr_setprioceiling
+function sets the priority ceiling for the mutex, used
+by threads executed under the
+.Dv PTHREAD_PRIO_PROTECT
+protocol.
+.Pp
+The
+.Fn pthread_mutexattr_setprotocol
+function specifies the protocol to be followed in utilizing mutexes.
+The
+.Fa protocol
+argument can take one of the following values:
+.Bl -tag -width PTHREAD_PRIO_PROTECT
+.It PTHREAD_PRIO_NONE
+Priority and scheduling of the thread owning this mutex is not
+affected by its mutex ownership.
+.It PTHREAD_PRIO_INHERIT
+Request priority-inheritance protocol, where the thread owning the mutex
+is executed at the highest priority among priorities of all threads waiting
+on any mutex owned by this thread.
+.It PTHREAD_PRIO_PROTECT
+Request priority-inheritance protocol, where the thread owning the mutex
+is executed at highest priority among priorities or priority ceilings of
+all threads waiting on any mutex owned by this thread.
+.El
+.Pp
+The
+.Fn pthread_mutexattr_setpshared
+function sets the process-shared attribute of
+.Fa attr
+to the value specified in
+.Fa pshared .
+The argument
+.Fa pshared
+may have one of the following values:
+.Bl -tag -width ".Dv PTHREAD_PROCESS_PRIVATE"
+.It Dv PTHREAD_PROCESS_PRIVATE
+The mutex may only be used by threads in the same process as the one
+that created the object.
+.It Dv PTHREAD_PROCESS_SHARED
+The mutex may be used by
+threads in processes other than the one that created the object,
+assuming other processes share access to the memory where the mutex
+was allocated.
+.El
+See
+.Xr libthr 3
+for details of the implementation of the shared mutexes,
+and their limitations.
+.Pp
+The
+.Fn pthread_mutexattr_setrobust
+function specifies robustness attribute of the mutex.
+Possible values for the
+.Fa robust
+argument are
+.Bl -tag -width PTHREAD_MUTEX_STALLED
+.It PTHREAD_MUTEX_STALLED
+No special actions are taken if the thread owning the mutex is terminated
+without unlocking the mutex lock.
+This can lead to deadlocks if no other thread can unlock the mutex.
+This is the default value.
+.It PTHREAD_MUTEX_ROBUST
+If the process containing the owning thread of a robust mutex, or owning
+thread, terminates while holding the mutex lock, the next thread that
+acquires the mutex is notified about the termination
+by the return value
+.Ev EOWNERDEAD
+from the locking function.
+Then, either
+.Xr pthread_mutex_consistent 3
+can be used to repair the mutex lock state, or
+.Xr pthread_mutex_unlock 3
+can unlock the mutex lock but also put it an unusable state,
+where all further attempts to acquire it result in the
+.Ev ENOTRECOVERABLE
+error.
+.El
+.Pp
+The
+.Fn pthread_mutexattr_settype
+function sets the type of the mutex.
+The type affects the behavior of calls which lock and unlock the mutex.
+The possible values for the
+.Fa type
+argument are
+.Bl -tag -width PTHREAD_MUTEX_ERRORCHECK
+.It PTHREAD_MUTEX_NORMAL
+Both recursive locking, and unlocking when the lock is not owned by the current
+thread, cause an error to be returned from the corresponding functions.
+This matches
+.Dv PTHREAD_MUTEX_ERRORCHECK
+but somewhat contradicts the behavior mandated by POSIX.
+.It PTHREAD_MUTEX_ERRORCHECK
+Both recursive locking, and unlocking when the lock is not owned by the current
+thread, cause an error returned from the corresponding functions.
+.It PTHREAD_MUTEX_RECURSIVE
+Recursive locking is allowed.
+Attempt to unlock when current thread is not an owner of the lock causes
+an error to be returned.
+.It PTHREAD_MUTEX_DEFAULT
+The
+.Fx
+implementation maps this type to
+.Dv PTHREAD_MUTEX_ERRORCHECK
+type.
+.El
+.Pp
+The
+.Fn pthread_mutexattr_get*
+functions copy the value of the attribute that corresponds to each function name
+to the location pointed to by the second function parameter.
+.Sh RETURN VALUES
+If successful, these functions return 0.
+Otherwise, an error number is returned to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_mutexattr_init
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er ENOMEM
+Out of memory.
+.El
+.Pp
+The
+.Fn pthread_mutexattr_destroy
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Invalid value for
+.Fa attr .
+.El
+.Pp
+The
+.Fn pthread_mutexattr_setprioceiling
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Invalid value for
+.Fa attr ,
+or invalid value for
+.Fa prioceiling .
+.El
+.Pp
+The
+.Fn pthread_mutexattr_getprioceiling
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Invalid value for
+.Fa attr .
+.El
+.Pp
+The
+.Fn pthread_mutexattr_setprotocol
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Invalid value for
+.Fa attr ,
+or invalid value for
+.Fa protocol .
+.El
+.Pp
+The
+.Fn pthread_mutexattr_getprotocol
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Invalid value for
+.Fa attr .
+.El
+.Pp
+The
+.Fn pthread_mutexattr_setpshared
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Invalid value for
+.Fa attr ,
+or invalid value for
+.Fa shared .
+.El
+.Pp
+The
+.Fn pthread_mutexattr_getpshared
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Invalid value for
+.Fa attr .
+.El
+.Pp
+The
+.Fn pthread_mutexattr_settype
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Invalid value for
+.Fa attr ,
+or invalid value for
+.Fa type .
+.El
+.Pp
+The
+.Fn pthread_mutexattr_gettype
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Invalid value for
+.Fa attr .
+.El
+.Pp
+The
+.Fn pthread_mutexattr_setrobust
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Invalid value for
+.Fa attr ,
+or invalid value for
+.Fa robust .
+.El
+.Pp
+The
+.Fn pthread_mutexattr_getrobust
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Invalid value for
+.Fa attr .
+.El
+.Sh SEE ALSO
+.Xr libthr 3 ,
+.Xr pthread_mutex_init 3
+.Sh STANDARDS
+The
+.Fn pthread_mutexattr_init
+and
+.Fn pthread_mutexattr_destroy
+functions conform to
+.St -p1003.1-96
+.Pp
+The
+.Fn pthread_mutexattr_setprioceiling ,
+.Fn pthread_mutexattr_getprioceiling ,
+.Fn pthread_mutexattr_setprotocol ,
+.Fn pthread_mutexattr_getprotocol ,
+.Fn pthread_mutexattr_setpshared ,
+.Fn pthread_mutexattr_getpshared ,
+.Fn pthread_mutexattr_settype ,
+and
+.Fn pthread_mutexattr_gettype
+functions conform to
+.St -susv2 .
+The
+.Fn pthread_mutexattr_setrobust
+and
+.Fn pthread_mutexattr_getrobust
+functions conform to
+.St -susv4 .
diff --git a/static/freebsd/man3/pthread_mutexattr_getkind_np.3 b/static/freebsd/man3/pthread_mutexattr_getkind_np.3
new file mode 100644
index 00000000..15eb7061
--- /dev/null
+++ b/static/freebsd/man3/pthread_mutexattr_getkind_np.3
@@ -0,0 +1,80 @@
+.\" Copyright (c) 2003 Alexey Zelkin <phantom@FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd October 12, 2021
+.Dt PTHREAD_MUTEXATTR_GETKIND_NP 3
+.Os
+.Sh NAME
+.Nm pthread_mutexattr_getkind_np ,
+.Nm pthread_mutexattr_setkind_np
+.Nd mutex attribute operations (legacy)
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread_np.h
+.Ft int
+.Fn pthread_mutexattr_getkind_np "pthread_mutexattr_t attr"
+.Ft int
+.Fn pthread_mutexattr_setkind_np "pthread_mutexattr_t *attr" "int kind"
+.Sh DESCRIPTION
+.Bf -symbolic
+These functions are deprecated and non-portable implementation of
+the mutex type manipulation.
+.Ef
+.Pp
+It is recommended to use the
+.Xr pthread_mutexattr_gettype 3
+and
+.Xr pthread_mutexattr_settype 3
+functions instead.
+.Sh RETURN VALUES
+The
+.Fn pthread_mutexattr_getkind_np
+function returns a positive value representing the
+.Dq kind
+of the mutex attribute
+.Fa attr
+if successful; otherwise the value \-1 is returned and the global variable
+.Va errno
+is set to indicate the error.
+.Pp
+.Rv -std pthread_mutexattr_setkind_np
+.Sh ERRORS
+The
+.Fn pthread_mutexattr_getkind_np
+and
+.Fn pthread_mutexattr_setkind_np
+functions will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa attr
+is invalid.
+.El
+.Sh SEE ALSO
+.Xr pthread_mutex_destroy 3 ,
+.Xr pthread_mutex_init 3 ,
+.Xr pthread_mutexattr_gettype 3 ,
+.Xr pthread_mutexattr_settype 3 ,
+.Xr pthread_np 3
diff --git a/static/freebsd/man3/pthread_np.3 b/static/freebsd/man3/pthread_np.3
new file mode 100644
index 00000000..c6f0efac
--- /dev/null
+++ b/static/freebsd/man3/pthread_np.3
@@ -0,0 +1,226 @@
+.\" Copyright (c) 2021 Felix Johnson <felix.the.red@gmail.com>
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
+.\" HOLDER 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.
+.\"
+.Dd October 12, 2021
+.Dt PTHREAD_NP 3
+.Os
+.Sh NAME
+.Nm pthread_np
+.Nd FreeBSD extensions to POSIX thread functions
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread_np.h
+.Sh DESCRIPTION
+This manual page documents extensions to the POSIX thread functions.
+These extensions may or may not be portable to other operating systems.
+.Pp
+The POSIX thread functions are summarized in this section in the following
+groups:
+.Pp
+.Bl -bullet -offset indent -compact
+.It
+Thread Routines
+.It
+Attribute Object Routines
+.It
+Mutex Routines
+.El
+.\" .It
+.\" Condition Variable Routines
+.\" .It
+.\" Read/Write Lock Routines
+.\" .It
+.\" Per-Thread Context Routines
+.\" .It
+.\" Cleanup Routines
+.Ss Thread Routines
+.Bl -tag -width indent
+.It Xo
+.Ft int
+.Fo pthread_getaffinity_np
+.Fa "pthread_t td" "size_t cpusetsize" "cpuset_t *cpusetp"
+.Fc
+.Xc
+Get the CPU affinity of a specified thread.
+.It Xo
+.Ft int
+.Fn pthread_get_name_np "pthread_t thread" "char *name" "size_t len"
+.Xc
+Get the name of a specified thread.
+.It Xo
+.Ft int
+.Fn pthread_getname_np "pthread_t thread" "char *name" "size_t len"
+.Xc
+Get the name of a specified thread.
+.It Xo
+.Ft int
+.Fn pthread_getthreadid_np void
+.Xc
+Get the calling thread's integral ID.
+.It Xo
+.Ft int
+.Fn pthread_main_np void
+.Xc
+Identify the initial thread.
+.It Xo
+.Ft int
+.Fn pthread_multi_np void
+.Xc
+Sets the thread's scheduling mode to multi-threaded.
+.It Xo
+.Ft int
+.Fn pthread_peekjoin_np "pthread_t thread" "void **value_ptr"
+.Xc
+Peek into the exit status of a specified thread.
+.It Xo
+.Ft int
+.Fn pthread_resume_all_np void
+.Xc
+Resume all suspended threads.
+.It Xo
+.Ft int
+.Fo pthread_setaffinity_np
+.Fa "pthread_t td" "size_t cpusetsize" "const cpuset_t *cpusetp"
+.Fc
+.Xc
+Set the CPU affinity of a specified thread.
+.It Xo
+.Ft int
+.Fn pthread_set_name_np "pthread_t thread" "char *name"
+.Xc
+Sets the specified thread's name.
+.It Xo
+.Ft int
+.Fn pthread_setname_np "pthread_t thread" "char *name"
+.Xc
+Sets the specified thread's name.
+.It Xo
+.Ft void
+.Fn pthread_signals_block_np void
+.Xc
+Blocks all asynchronous signals, quickly.
+.It Xo
+.Ft int
+.Fn pthread_single_np void
+.Xc
+Sets the thread's scheduling mode to single-threaded.
+.It Xo
+.Ft int
+.Fn pthread_suspend_np "pthread_t tid"
+.Xc
+Suspend the specified thread.
+.It Xo
+.Ft int
+.Fn pthread_suspend_all_np void
+.Xc
+Suspend all active threads.
+.It Xo
+.Ft int
+.Fo pthread_timedjoin_np
+.Fa "pthread_t thread" "void **value_ptr" "const struct timespec *abstime"
+.Fc
+.Xc
+A variant of
+.Fn pthread_join
+with a timeout.
+.El
+.Ss Attribute Object Routines
+.Bl -tag -width indent
+.It Xo
+.Ft int
+.Fo pthread_attr_get_np
+.Fa "pthread_t pid" "pthread_attr_t *dst"
+.Fc
+.Xc
+Get the attributes of an existent thread.
+.It Xo
+.Ft int
+.Fo pthread_attr_getaffinity_np
+.Fa "const pthread_attr_t *pattr" "size_t cpusetsize" "cpuset_t *cpusetp"
+.Fc
+.Xc
+Get the CPU affinity mask from the thread attribute object.
+.It Xo
+.Ft int
+.Fo pthread_attr_setaffinity_np
+.Fa "pthread_attr_t *pattr" "size_t cpusetsize" "const cpuset_t *cpusetp"
+.Fc
+.Xc
+Set the CPU affinity mask for the thread attribute object.
+.It Xo
+.Ft int
+.Fn pthread_attr_setcreatesuspend_np "pthread_attr_t *attr"
+.Xc
+Permit creation of suspended threads.
+.El
+.Ss Mutex Routines
+.Bl -tag -width indent
+.It Xo
+.Ft int
+.Fn pthread_mutexattr_getkind_np "pthread_mutexattr_t attr"
+.Xc
+Deprecated, use
+.Xr pthread_mutexattr_gettype 3
+instead.
+.It Xo
+.Ft int
+.Fn pthread_mutexattr_setkind_np "pthread_mutexattr_t *attr"
+.Xc
+Deprecated, use
+.Xr pthread_mutexattr_settype 3
+instead.
+.El
+.\" .Ss Condition Variable Routines
+.\" .Bl -tag -width indent
+.\" .El
+.\" .Ss Read/Write Lock Routines
+.\" .Bl -tag -width indent
+.\" .El
+.\" .Ss Per-Thread Context Routines
+.\" .Bl -tag -width indent
+.\" .El
+.\" .Ss Cleanup Routines
+.\" .Bl -tag -width indent
+.\" .El
+.Sh SEE ALSO
+.Xr libthr 3 ,
+.Xr pthread 3 ,
+.Xr pthread_affinity_np 3 ,
+.Xr pthread_attr_affinity_np 3 ,
+.Xr pthread_attr_get_np 3 ,
+.Xr pthread_attr_setcreatesuspend_np 3 ,
+.Xr pthread_getthreadid_np 3 ,
+.Xr pthread_join 3 ,
+.Xr pthread_main_np 3 ,
+.Xr pthread_multi_np 3 ,
+.Xr pthread_mutexattr_getkind_np 3 ,
+.Xr pthread_resume_all_np 3 ,
+.Xr pthread_resume_np 3 ,
+.Xr pthread_set_name_np 3 ,
+.Xr pthread_signals_block_np 3 ,
+.Xr pthread_suspend_all_np 3 ,
+.Xr pthread_suspend_np 3 ,
+.Xr pthread_switch_add_np 3
+.Sh STANDARDS
+All of these functions are non-portable extensions to POSIX threads.
diff --git a/static/freebsd/man3/pthread_once.3 b/static/freebsd/man3/pthread_once.3
new file mode 100644
index 00000000..1ff0a74b
--- /dev/null
+++ b/static/freebsd/man3/pthread_once.3
@@ -0,0 +1,105 @@
+.\" Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>.
+.\" All rights reserved.
+.\"
+.\" 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. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by John Birrell.
+.\" 4. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd April 4, 1996
+.Dt PTHREAD_ONCE 3
+.Os
+.Sh NAME
+.Nm pthread_once
+.Nd dynamic package initialization
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Pp
+pthread_once_t
+.Fa once_control
+= PTHREAD_ONCE_INIT;
+.Ft int
+.Fn pthread_once "pthread_once_t *once_control" "void (*init_routine)(void)"
+.Sh DESCRIPTION
+The first call to
+.Fn pthread_once
+by any thread in a process, with a given
+.Fa once_control ,
+will call the
+.Fn init_routine
+with no arguments.
+Subsequent calls to
+.Fn pthread_once
+with the same
+.Fa once_control
+will not call the
+.Fn init_routine .
+On return from
+.Fn pthread_once ,
+it is guaranteed that
+.Fn init_routine
+has completed.
+The
+.Fa once_control
+parameter is used to determine whether the associated initialization
+routine has been called.
+.Pp
+The function
+.Fn pthread_once
+is not a cancellation point.
+However, if
+.Fn init_routine
+is a cancellation point and is cancelled, the effect on
+.Fa once_control
+is as if
+.Fn pthread_once
+was never called.
+.Pp
+The constant
+.Fa PTHREAD_ONCE_INIT
+is defined by header
+.In pthread.h .
+.Pp
+The behavior of
+.Fn pthread_once
+is undefined if
+.Fa once_control
+has automatic storage duration or is not initialized by
+.Fa PTHREAD_ONCE_INIT .
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_once
+function will return zero.
+Otherwise an error number will be returned to
+indicate the error.
+.Sh ERRORS
+None.
+.Sh STANDARDS
+The
+.Fn pthread_once
+function conforms to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_resume_all_np.3 b/static/freebsd/man3/pthread_resume_all_np.3
new file mode 100644
index 00000000..411d5a57
--- /dev/null
+++ b/static/freebsd/man3/pthread_resume_all_np.3
@@ -0,0 +1,50 @@
+.\" Copyright (c) 2003 Alexey Zelkin <phantom@FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd October 12, 2021
+.Dt PTHREAD_RESUME_ALL_NP 3
+.Os
+.Sh NAME
+.Nm pthread_resume_all_np
+.Nd resume all suspended threads
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread_np.h
+.Ft void
+.Fn pthread_resume_all_np void
+.Sh DESCRIPTION
+The
+.Fn pthread_resume_all_np
+function causes all active threads to be scanned
+and resumes those which were previously suspended.
+.Sh SEE ALSO
+.Xr pthread_attr_setcreatesuspend_np 3 ,
+.Xr pthread_np 3 ,
+.Xr pthread_resume_np 3 ,
+.Xr pthread_suspend_all_np 3 ,
+.Xr pthread_suspend_np 3
+.Sh AUTHORS
+This manual page was written by
+.An Alexey Zelkin Aq Mt phantom@FreeBSD.org .
diff --git a/static/freebsd/man3/pthread_resume_np.3 b/static/freebsd/man3/pthread_resume_np.3
new file mode 100644
index 00000000..546e1336
--- /dev/null
+++ b/static/freebsd/man3/pthread_resume_np.3
@@ -0,0 +1,71 @@
+.\" Copyright (c) 2003 Alexey Zelkin <phantom@FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd October 12, 2021
+.Dt PTHREAD_RESUME_NP 3
+.Os
+.Sh NAME
+.Nm pthread_resume_np
+.Nd resume suspended thread
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread_np.h
+.Ft int
+.Fn pthread_resume_np "pthread_t tid"
+.Sh DESCRIPTION
+The
+.Fn pthread_resume_np
+function, called on a suspended thread, causes it to resume.
+If a thread specified by the
+.Fa tid
+argument is not suspended, no actions will be performed.
+.Sh RETURN VALUES
+If successful,
+.Fn pthread_resume_np
+function returns 0.
+Otherwise, an error number is returned to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_resume_np
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by the
+.Fa tid
+argument is invalid.
+.It Bq Er ESRCH
+No thread could be found corresponding to the thread ID specified by the
+.Fa tid
+argument.
+.El
+.Sh SEE ALSO
+.Xr pthread_attr_setcreatesuspend_np 3 ,
+.Xr pthread_np 3 ,
+.Xr pthread_resume_all_np 3 ,
+.Xr pthread_suspend_all_np 3 ,
+.Xr pthread_suspend_np 3
+.Sh AUTHORS
+This manual page was written by
+.An Alexey Zelkin Aq Mt phantom@FreeBSD.org .
diff --git a/static/freebsd/man3/pthread_rwlock_destroy.3 b/static/freebsd/man3/pthread_rwlock_destroy.3
new file mode 100644
index 00000000..9c50e71f
--- /dev/null
+++ b/static/freebsd/man3/pthread_rwlock_destroy.3
@@ -0,0 +1,81 @@
+.\" Copyright (c) 1998 Alex Nash
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd August 4, 1998
+.Dt PTHREAD_RWLOCK_DESTROY 3
+.Os
+.Sh NAME
+.Nm pthread_rwlock_destroy
+.Nd destroy a read/write lock
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_rwlock_destroy "pthread_rwlock_t *lock"
+.Sh DESCRIPTION
+The
+.Fn pthread_rwlock_destroy
+function is used to destroy a read/write lock previously created with
+.Fn pthread_rwlock_init .
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_rwlock_destroy
+function will return zero.
+Otherwise an error number will be returned
+to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_rwlock_destroy
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EPERM
+The caller does not have the privilege to perform the operation.
+.El
+.Pp
+The
+.Fn pthread_rwlock_destroy
+function may fail if:
+.Bl -tag -width Er
+.It Bq Er EBUSY
+The system has detected an attempt to destroy the object referenced by
+.Fa lock
+while it is locked.
+.It Bq Er EINVAL
+The value specified by
+.Fa lock
+is invalid.
+.El
+.Sh SEE ALSO
+.Xr pthread_rwlock_init 3
+.Sh STANDARDS
+The
+.Fn pthread_rwlock_destroy
+function is expected to conform to
+.St -susv2 .
+.Sh HISTORY
+The
+.Fn pthread_rwlock_destroy
+function first appeared in
+.Fx 3.0 .
diff --git a/static/freebsd/man3/pthread_rwlock_init.3 b/static/freebsd/man3/pthread_rwlock_init.3
new file mode 100644
index 00000000..e6474199
--- /dev/null
+++ b/static/freebsd/man3/pthread_rwlock_init.3
@@ -0,0 +1,98 @@
+.\" Copyright (c) 1998 Alex Nash
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd August 17, 2018
+.Dt PTHREAD_RWLOCK_INIT 3
+.Os
+.Sh NAME
+.Nm pthread_rwlock_init
+.Nd initialize a read/write lock
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_rwlock_init "pthread_rwlock_t *restrict lock" "const pthread_rwlockattr_t *restrict attr"
+.Sh DESCRIPTION
+The
+.Fn pthread_rwlock_init
+function is used to initialize a read/write lock, with attributes
+specified by
+.Fa attr .
+If
+.Fa attr
+is NULL, the default read/write lock attributes are used.
+.Pp
+The results of calling
+.Fn pthread_rwlock_init
+with an already initialized lock are undefined.
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_rwlock_init
+function will return zero.
+Otherwise an error number will be returned
+to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_rwlock_init
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EAGAIN
+The system lacked the necessary resources (other than memory) to
+initialize the lock.
+.It Bq Er ENOMEM
+Insufficient memory exists to initialize the lock.
+.It Bq Er EPERM
+The caller does not have sufficient privilege to perform the
+operation.
+.El
+.Pp
+The
+.Fn pthread_rwlock_init
+function may fail if:
+.Bl -tag -width Er
+.It Bq Er EBUSY
+The system has detected an attempt to re-initialize the object
+referenced by
+.Fa lock ,
+a previously initialized but not yet destroyed read/write lock.
+.It Bq Er EINVAL
+The value specified by
+.Fa attr
+is invalid.
+.El
+.Sh SEE ALSO
+.Xr pthread_rwlock_destroy 3 ,
+.Xr pthread_rwlockattr_init 3 ,
+.Xr pthread_rwlockattr_setpshared 3
+.Sh STANDARDS
+The
+.Fn pthread_rwlock_init
+function is expected to conform to
+.St -susv2 .
+.Sh HISTORY
+The
+.Fn pthread_rwlock_init
+function first appeared in
+.Fx 3.0 .
diff --git a/static/freebsd/man3/pthread_rwlock_rdlock.3 b/static/freebsd/man3/pthread_rwlock_rdlock.3
new file mode 100644
index 00000000..f8403fc8
--- /dev/null
+++ b/static/freebsd/man3/pthread_rwlock_rdlock.3
@@ -0,0 +1,125 @@
+.\" Copyright (c) 1998 Alex Nash
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd August 4, 1998
+.Dt PTHREAD_RWLOCK_RDLOCK 3
+.Os
+.Sh NAME
+.Nm pthread_rwlock_rdlock ,
+.Nm pthread_rwlock_tryrdlock
+.Nd acquire a read/write lock for reading
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_rwlock_rdlock "pthread_rwlock_t *lock"
+.Ft int
+.Fn pthread_rwlock_tryrdlock "pthread_rwlock_t *lock"
+.Sh DESCRIPTION
+The
+.Fn pthread_rwlock_rdlock
+function acquires a read lock on
+.Fa lock
+provided that
+.Fa lock
+is not presently held for writing and no writer threads are
+presently blocked on the lock.
+If the read lock cannot be
+immediately acquired, the calling thread blocks until it can
+acquire the lock.
+.Pp
+The
+.Fn pthread_rwlock_tryrdlock
+function performs the same action, but does not block if the lock
+cannot be immediately obtained (i.e., the lock is held for writing
+or there are waiting writers).
+.Pp
+A thread may hold multiple concurrent read locks.
+If so,
+.Fn pthread_rwlock_unlock
+must be called once for each lock obtained.
+.Pp
+The results of acquiring a read lock while the calling thread holds
+a write lock are undefined.
+.Sh IMPLEMENTATION NOTES
+To prevent writer starvation, writers are favored over readers.
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_rwlock_rdlock
+and
+.Fn pthread_rwlock_tryrdlock
+functions will return zero.
+Otherwise an error number will be returned
+to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_rwlock_tryrdlock
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EBUSY
+The lock could not be acquired because a writer holds the lock or
+was blocked on it.
+.El
+.Pp
+The
+.Fn pthread_rwlock_rdlock
+and
+.Fn pthread_rwlock_tryrdlock
+functions may fail if:
+.Bl -tag -width Er
+.It Bq Er EAGAIN
+The lock could not be acquired because the maximum number of read locks
+against
+.Fa lock
+has been exceeded.
+.It Bq Er EDEADLK
+The current thread already owns
+.Fa lock
+for writing.
+.It Bq Er EINVAL
+The value specified by
+.Fa lock
+is invalid.
+.It Bq Er ENOMEM
+Insufficient memory exists to initialize the lock (applies to
+statically initialized locks only).
+.El
+.Sh SEE ALSO
+.Xr pthread_rwlock_init 3 ,
+.Xr pthread_rwlock_trywrlock 3 ,
+.Xr pthread_rwlock_unlock 3 ,
+.Xr pthread_rwlock_wrlock 3
+.Sh STANDARDS
+The
+.Fn pthread_rwlock_rdlock
+and
+.Fn pthread_rwlock_tryrdlock
+functions are expected to conform to
+.St -susv2 .
+.Sh HISTORY
+The
+.Fn pthread_rwlock_rdlock
+function first appeared in
+.Fx 3.0 .
diff --git a/static/freebsd/man3/pthread_rwlock_timedrdlock.3 b/static/freebsd/man3/pthread_rwlock_timedrdlock.3
new file mode 100644
index 00000000..2b736529
--- /dev/null
+++ b/static/freebsd/man3/pthread_rwlock_timedrdlock.3
@@ -0,0 +1,116 @@
+.\" Copyright (c) 2004 Michael Telahun Makonnen
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd August 17, 2018
+.Dt PTHREAD_RWLOCK_TIMEDRDLOCK 3
+.Os
+.Sh NAME
+.Nm pthread_rwlock_timedrdlock
+.Nd "acquire a read-write lock for reading or give up after a specified period"
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_rwlock_timedrdlock "pthread_rwlock_t *restrict rwlock" "const struct timespec *restrict abs_timeout"
+.Sh DESCRIPTION
+This function acquires a read lock on the read-write lock
+.Fa rwlock .
+However, if the lock cannot be
+acquired without waiting for another thread to
+unlock the lock,
+this wait shall be terminated when
+.Fa abs_timeout
+expires.
+.Pp
+A thread may hold multiple concurrent read locks.
+The
+.Xr pthread_rwlock_unlock 3
+function must be called once for each lock acquired.
+.Pp
+If the thread should be interrupted by a signal,
+the
+.Fn pthread_rwlock_timedrdlock
+function will be automatically restarted after the thread returns from
+the signal handler.
+.Pp
+The calling thread may deadlock if
+at the time the call is made it holds a write lock on
+.Fa rwlock .
+The results are undefined if this function is called with
+an uninitialized read-write lock.
+.Sh IMPLEMENTATION NOTES
+To prevent writer starvation, writers are favored over readers.
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_rwlock_timedrdlock
+function will return zero.
+Otherwise, an error number will be returned to indicate the error.
+.Pp
+This function shall not return an error code of
+.Er EINTR .
+.Sh ERRORS
+The
+.Fn pthread_rwlock_timedrdlock
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er ETIMEDOUT
+The lock could not be acquired before the specified timeout expired.
+.El
+.Pp
+The
+.Fn pthread_rwlock_timedrdlock
+function may fail if:
+.Bl -tag -width Er
+.It Bq Er EAGAIN
+The read lock could not be
+acquired because the maximum number of read locks for
+.Fa rwlock
+would be exceeded.
+.It Bq Er EDEADLK
+The calling thread already holds a write lock on
+.Fa rwlock .
+.It Bq Er EINVAL
+The value specified by
+.Fa rwlock
+does not refer to an initialized read-write lock object,
+or the
+.Fa abs_timeout
+nanosecond value is less than zero or
+greater than or equal to 1 billion.
+.El
+.Sh SEE ALSO
+.Xr pthread_rwlock_init 3 ,
+.Xr pthread_rwlock_timedwrlock 3 ,
+.Xr pthread_rwlock_unlock 3
+.Sh STANDARDS
+The
+.Fn pthread_rwlock_timedrdlock
+function is expected to conform to
+.St -p1003.1-96 .
+.Sh HISTORY
+The
+.Fn pthread_rwlock_timedrdlock
+function first appeared in
+.Fx 5.2 .
diff --git a/static/freebsd/man3/pthread_rwlock_timedwrlock.3 b/static/freebsd/man3/pthread_rwlock_timedwrlock.3
new file mode 100644
index 00000000..4543eff4
--- /dev/null
+++ b/static/freebsd/man3/pthread_rwlock_timedwrlock.3
@@ -0,0 +1,106 @@
+.\" Copyright (c) 2004 Michael Telahun Makonnen
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd August 17, 2018
+.Dt PTHREAD_RWLOCK_TIMEDWRLOCK 3
+.Os
+.Sh NAME
+.Nm pthread_rwlock_timedwrlock
+.Nd "acquire a read-write lock for writing or give up after a specified period"
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_rwlock_timedwrlock "pthread_rwlock_t *restrict rwlock" "const struct timespec *restrict abs_timeout"
+.Sh DESCRIPTION
+This function acquires a write lock on the read-write lock
+.Fa rwlock .
+However, if the lock cannot be
+acquired without waiting for another thread to
+unlock the lock,
+this wait shall be terminated when
+.Fa abs_timeout
+expires.
+.Pp
+If the thread should be interrupted by a signal,
+the
+.Fn pthread_rwlock_timedwrlock
+function will be automatically restarted after the thread returns from
+the signal handler.
+.Pp
+The calling thread may deadlock if
+at the time the call is made it holds
+.Fa rwlock .
+The results are undefined if this function is called with
+an uninitialized read-write lock.
+.Sh IMPLEMENTATION NOTES
+To prevent writer starvation, writers are favored over readers.
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_rwlock_timedwrlock
+function will return zero.
+Otherwise, an error number will be returned to indicate the error.
+.Pp
+This function shall not return an error code of
+.Er EINTR .
+.Sh ERRORS
+The
+.Fn pthread_rwlock_timedwrlock
+function shall fail if:
+.Bl -tag -width Er
+.It Bq Er ETIMEDOUT
+The lock could not be acquired before the specified timeout expired.
+.El
+.Pp
+The
+.Fn pthread_rwlock_timedwrlock
+function may fail if:
+.Bl -tag -width Er
+.It Bq Er EDEADLK
+The calling thread already holds
+.Fa rwlock .
+.It Bq Er EINVAL
+The value specified by
+.Fa rwlock
+does not refer to an initialized read-write lock object,
+or the
+.Fa abs_timeout
+nanosecond value is less than zero or
+greater than or equal to 1 billion.
+.El
+.Sh SEE ALSO
+.Xr pthread_rwlock_init 3 ,
+.Xr pthread_rwlock_timedrdlock 3 ,
+.Xr pthread_rwlock_unlock 3
+.Sh STANDARDS
+The
+.Fn pthread_rwlock_timedwrlock
+function is expected to conform to
+.St -p1003.1-96 .
+.Sh HISTORY
+The
+.Fn pthread_rwlock_timedwrlock
+function first appeared in
+.Fx 5.2 .
diff --git a/static/freebsd/man3/pthread_rwlock_unlock.3 b/static/freebsd/man3/pthread_rwlock_unlock.3
new file mode 100644
index 00000000..8e348e92
--- /dev/null
+++ b/static/freebsd/man3/pthread_rwlock_unlock.3
@@ -0,0 +1,80 @@
+.\" Copyright (c) 1998 Alex Nash
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd August 4, 1998
+.Dt PTHREAD_RWLOCK_UNLOCK 3
+.Os
+.Sh NAME
+.Nm pthread_rwlock_unlock
+.Nd release a read/write lock
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_rwlock_unlock "pthread_rwlock_t *lock"
+.Sh DESCRIPTION
+The
+.Fn pthread_rwlock_unlock
+function is used to release the read/write lock previously obtained by
+.Fn pthread_rwlock_rdlock ,
+.Fn pthread_rwlock_wrlock ,
+.Fn pthread_rwlock_tryrdlock ,
+or
+.Fn pthread_rwlock_trywrlock .
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_rwlock_unlock
+function will return zero.
+Otherwise an error number will be returned
+to indicate the error.
+.Pp
+The results are undefined if
+.Fa lock
+is not held by the calling thread.
+.Sh ERRORS
+The
+.Fn pthread_rwlock_unlock
+function may fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa lock
+is invalid.
+.It Bq Er EPERM
+The current thread does not own the read/write lock.
+.El
+.Sh SEE ALSO
+.Xr pthread_rwlock_rdlock 3 ,
+.Xr pthread_rwlock_wrlock 3
+.Sh STANDARDS
+The
+.Fn pthread_rwlock_unlock
+function is expected to conform to
+.St -susv2 .
+.Sh HISTORY
+The
+.Fn pthread_rwlock_unlock
+function first appeared in
+.Fx 3.0 .
diff --git a/static/freebsd/man3/pthread_rwlock_wrlock.3 b/static/freebsd/man3/pthread_rwlock_wrlock.3
new file mode 100644
index 00000000..58416b27
--- /dev/null
+++ b/static/freebsd/man3/pthread_rwlock_wrlock.3
@@ -0,0 +1,104 @@
+.\" Copyright (c) 1998 Alex Nash
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd August 4, 1998
+.Dt PTHREAD_RWLOCK_WRLOCK 3
+.Os
+.Sh NAME
+.Nm pthread_rwlock_wrlock ,
+.Nm pthread_rwlock_trywrlock
+.Nd acquire a read/write lock for writing
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_rwlock_wrlock "pthread_rwlock_t *lock"
+.Ft int
+.Fn pthread_rwlock_trywrlock "pthread_rwlock_t *lock"
+.Sh DESCRIPTION
+The
+.Fn pthread_rwlock_wrlock
+function blocks until a write lock can be acquired against
+.Fa lock .
+The
+.Fn pthread_rwlock_trywrlock
+function performs the same action, but does not block if the lock
+cannot be immediately obtained.
+.Pp
+The results are undefined if the calling thread already holds the
+lock at the time the call is made.
+.Sh IMPLEMENTATION NOTES
+To prevent writer starvation, writers are favored over readers.
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_rwlock_wrlock
+and
+.Fn pthread_rwlock_trywrlock
+functions will return zero.
+Otherwise an error number will be returned
+to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_rwlock_trywrlock
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EBUSY
+The calling thread is not able to acquire the lock without blocking.
+.El
+.Pp
+The
+.Fn pthread_rwlock_wrlock
+and
+.Fn pthread_rwlock_trywrlock
+functions may fail if:
+.Bl -tag -width Er
+.It Bq Er EDEADLK
+The calling thread already owns the read/write lock (for reading
+or writing).
+.It Bq Er EINVAL
+The value specified by
+.Fa lock
+is invalid.
+.It Bq Er ENOMEM
+Insufficient memory exists to initialize the lock (applies to
+statically initialized locks only).
+.El
+.Sh SEE ALSO
+.Xr pthread_rwlock_init 3 ,
+.Xr pthread_rwlock_rdlock 3 ,
+.Xr pthread_rwlock_tryrdlock 3 ,
+.Xr pthread_rwlock_unlock 3
+.Sh STANDARDS
+The
+.Fn pthread_rwlock_wrlock
+and
+.Fn pthread_rwlock_trywrlock
+functions are expected to conform to
+.St -susv2 .
+.Sh HISTORY
+The
+.Fn pthread_rwlock_wrlock
+function first appeared in
+.Fx 3.0 .
diff --git a/static/freebsd/man3/pthread_rwlockattr_destroy.3 b/static/freebsd/man3/pthread_rwlockattr_destroy.3
new file mode 100644
index 00000000..eabfbad7
--- /dev/null
+++ b/static/freebsd/man3/pthread_rwlockattr_destroy.3
@@ -0,0 +1,70 @@
+.\" Copyright (c) 1998 Alex Nash
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd August 4, 1998
+.Dt PTHREAD_RWLOCKATTR_DESTROY 3
+.Os
+.Sh NAME
+.Nm pthread_rwlockattr_destroy
+.Nd destroy a read/write lock attributes object
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_rwlockattr_destroy "pthread_rwlockattr_t *attr"
+.Sh DESCRIPTION
+The
+.Fn pthread_rwlockattr_destroy
+function is used to destroy a read/write lock attributes object
+previously created with
+.Fn pthread_rwlockattr_init .
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_rwlockattr_destroy
+function will return zero.
+Otherwise an error number will be returned
+to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_rwlockattr_destroy
+function may fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa attr
+is invalid.
+.El
+.Sh SEE ALSO
+.Xr pthread_rwlockattr_init 3
+.Sh STANDARDS
+The
+.Fn pthread_rwlockattr_destroy
+function is expected to conform to
+.St -susv2 .
+.Sh HISTORY
+The
+.Fn pthread_rwlockattr_destroy
+function first appeared in
+.Fx 3.0 .
diff --git a/static/freebsd/man3/pthread_rwlockattr_getpshared.3 b/static/freebsd/man3/pthread_rwlockattr_getpshared.3
new file mode 100644
index 00000000..33d7cd32
--- /dev/null
+++ b/static/freebsd/man3/pthread_rwlockattr_getpshared.3
@@ -0,0 +1,86 @@
+.\" Copyright (c) 1998 Alex Nash
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd August 17, 2018
+.Dt PTHREAD_RWLOCKATTR_GETPSHARED 3
+.Os
+.Sh NAME
+.Nm pthread_rwlockattr_getpshared
+.Nd get the process shared attribute
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fo pthread_rwlockattr_getpshared
+.Fa "const pthread_rwlockattr_t *restrict attr" "int *restrict pshared"
+.Fc
+.Sh DESCRIPTION
+The
+.Fn pthread_rwlockattr_getpshared
+function is used to get the process shared setting of a read/write
+lock attribute object.
+The setting is returned via
+.Fa pshared ,
+and may be one of two values:
+.Bl -tag -width PTHREAD_PROCESS_PRIVATE
+.It Dv PTHREAD_PROCESS_SHARED
+Any thread of any process that has access to the memory where the
+read/write lock resides can manipulate the lock.
+.It Dv PTHREAD_PROCESS_PRIVATE
+Only threads created within the same process as the thread that
+initialized the read/write lock can manipulate the lock.
+This is
+the default value.
+.El
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_rwlockattr_getpshared
+function will return zero.
+Otherwise an error number will be returned
+to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_rwlockattr_getpshared
+function may fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa attr
+is invalid.
+.El
+.Sh SEE ALSO
+.Xr pthread_rwlock_init 3 ,
+.Xr pthread_rwlockattr_init 3 ,
+.Xr pthread_rwlockattr_setpshared 3
+.Sh STANDARDS
+The
+.Fn pthread_rwlockattr_getpshared
+function is expected to conform to
+.St -susv2 .
+.Sh HISTORY
+The
+.Fn pthread_rwlockattr_getpshared
+function first appeared in
+.Fx 3.0 .
diff --git a/static/freebsd/man3/pthread_rwlockattr_init.3 b/static/freebsd/man3/pthread_rwlockattr_init.3
new file mode 100644
index 00000000..031d010a
--- /dev/null
+++ b/static/freebsd/man3/pthread_rwlockattr_init.3
@@ -0,0 +1,69 @@
+.\" Copyright (c) 1998 Alex Nash
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd August 4, 1998
+.Dt PTHREAD_RWLOCKATTR_INIT 3
+.Os
+.Sh NAME
+.Nm pthread_rwlockattr_init
+.Nd initialize a read/write lock attributes object
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_rwlockattr_init "pthread_rwlockattr_t *attr"
+.Sh DESCRIPTION
+The
+.Fn pthread_rwlockattr_init
+function is used to initialize a read/write lock attributes object.
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_rwlockattr_init
+function will return zero.
+Otherwise an error number will be returned
+to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_rwlockattr_init
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er ENOMEM
+Insufficient memory exists to initialize the attributes object.
+.El
+.Sh SEE ALSO
+.Xr pthread_rwlock_init 3 ,
+.Xr pthread_rwlockattr_destroy 3 ,
+.Xr pthread_rwlockattr_getpshared 3 ,
+.Xr pthread_rwlockattr_setpshared 3
+.Sh STANDARDS
+The
+.Fn pthread_rwlockattr_init
+function is expected to conform to
+.St -susv2 .
+.Sh HISTORY
+The
+.Fn pthread_rwlockattr_init
+function first appeared in
+.Fx 3.0 .
diff --git a/static/freebsd/man3/pthread_rwlockattr_setpshared.3 b/static/freebsd/man3/pthread_rwlockattr_setpshared.3
new file mode 100644
index 00000000..3ed86f41
--- /dev/null
+++ b/static/freebsd/man3/pthread_rwlockattr_setpshared.3
@@ -0,0 +1,90 @@
+.\" Copyright (c) 1998 Alex Nash
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd May 31, 2016
+.Dt PTHREAD_RWLOCKATTR_SETPSHARED 3
+.Os
+.Sh NAME
+.Nm pthread_rwlockattr_setpshared
+.Nd set the process shared attribute
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_rwlockattr_setpshared "pthread_rwlockattr_t *attr" "int pshared"
+.Sh DESCRIPTION
+The
+.Fn pthread_rwlockattr_setpshared
+function sets the process shared attribute of
+.Fa attr
+to the value referenced by
+.Fa pshared .
+The
+.Fa pshared
+argument may be one of two values:
+.Bl -tag -width PTHREAD_PROCESS_PRIVATE
+.It Dv PTHREAD_PROCESS_SHARED
+Any thread of any process that has access to the memory where the
+read/write lock resides can manipulate the lock.
+.It Dv PTHREAD_PROCESS_PRIVATE
+Only threads created within the same process as the thread that
+initialized the read/write lock can manipulate the lock.
+This is
+the default value.
+.El
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_rwlockattr_setpshared
+function will return zero.
+Otherwise an error number will be returned
+to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_rwlockattr_setpshared
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa attr
+or
+.Fa pshared
+is invalid.
+.El
+.Sh SEE ALSO
+.Xr pthread_rwlock_init 3 ,
+.Xr pthread_rwlockattr_getpshared 3 ,
+.Xr pthread_rwlockattr_init 3
+.Sh STANDARDS
+The
+.Fn pthread_rwlockattr_setpshared
+function is expected to conform to
+.St -susv2 .
+.Sh HISTORY
+The
+.Fn pthread_rwlockattr_setpshared
+function first appeared in
+.Fx 3.0 .
+Support for process-shared read/write locks appeared in
+.Fx 11.0 .
diff --git a/static/freebsd/man3/pthread_schedparam.3 b/static/freebsd/man3/pthread_schedparam.3
new file mode 100644
index 00000000..3ba17578
--- /dev/null
+++ b/static/freebsd/man3/pthread_schedparam.3
@@ -0,0 +1,100 @@
+.\" Copyright (C) 2000 Jason Evans <jasone@FreeBSD.org>.
+.\" All rights reserved.
+.\"
+.\" 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(s), this list of conditions and the following disclaimer as
+.\"    the first lines of this file unmodified other than the possible
+.\"    addition of one or more copyright notices.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice(s), this list of conditions and the following disclaimer in
+.\"    the documentation and/or other materials provided with the
+.\"    distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``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 COPYRIGHT HOLDER(S) 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.
+.\"
+.Dd October 17, 2022
+.Dt PTHREAD_SCHEDPARAM 3
+.Os
+.Sh NAME
+.Nm pthread_setschedparam ,
+.Nm pthread_getschedparam
+.Nd thread scheduling parameter manipulation
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_setschedparam "pthread_t thread" "int policy" "const struct sched_param *param"
+.Ft int
+.Fn pthread_getschedparam "pthread_t thread" "int *restrict policy" "struct sched_param *restrict param"
+.Sh DESCRIPTION
+The
+.Fn pthread_setschedparam
+and
+.Fn pthread_getschedparam
+functions set and get the scheduling parameters of individual threads.
+The scheduling policy for a thread can either be
+.Dv SCHED_FIFO
+(first in, first out),
+.Dv SCHED_RR
+(round-robin), or
+.Dv SCHED_OTHER
+(timesharing).
+Valid thread priorities (accessed via
+.Va param->sched_priority )
+must be within the range returned by the
+.Xr sched_get_priority_min 2
+and
+.Xr sched_get_priority_max 2
+system calls.
+.Sh RETURN VALUES
+If successful, these functions return 0.
+Otherwise, an error number is returned to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_setschedparam
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+Invalid value for
+.Fa policy .
+.It Bq Er ENOTSUP
+Invalid value for scheduling parameters.
+.It Bq Er EPERM
+The calling thread does not have sufficient privilege to perform the operation.
+.It Bq Er ESRCH
+Non-existent thread
+.Fa thread .
+.El
+.Pp
+The
+.Fn pthread_getschedparam
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er ESRCH
+Non-existent thread
+.Fa thread .
+.El
+.Sh SEE ALSO
+.Xr sched_get_priority_max 2 ,
+.Xr sched_get_priority_min 2
+.Sh STANDARDS
+The
+.Fn pthread_setschedparam
+and
+.Fn pthread_getschedparam
+functions conform to
+.St -susv2 .
diff --git a/static/freebsd/man3/pthread_self.3 b/static/freebsd/man3/pthread_self.3
new file mode 100644
index 00000000..1c485300
--- /dev/null
+++ b/static/freebsd/man3/pthread_self.3
@@ -0,0 +1,61 @@
+.\" Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>.
+.\" All rights reserved.
+.\"
+.\" 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. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by John Birrell.
+.\" 4. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd April 4, 1996
+.Dt PTHREAD_SELF 3
+.Os
+.Sh NAME
+.Nm pthread_self
+.Nd get the calling thread's ID
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft pthread_t
+.Fn pthread_self "void"
+.Sh DESCRIPTION
+The
+.Fn pthread_self
+function returns the thread ID of the calling thread.
+.Sh RETURN VALUES
+The
+.Fn pthread_self
+function returns the thread ID of the calling thread.
+.Sh ERRORS
+None.
+.Sh SEE ALSO
+.Xr pthread_create 3 ,
+.Xr pthread_equal 3 ,
+.Xr pthread_getthreadid_np 3
+.Sh STANDARDS
+The
+.Fn pthread_self
+function conforms to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_set_name_np.3 b/static/freebsd/man3/pthread_set_name_np.3
new file mode 100644
index 00000000..69adcad2
--- /dev/null
+++ b/static/freebsd/man3/pthread_set_name_np.3
@@ -0,0 +1,107 @@
+.\" Copyright (c) 2003 Alexey Zelkin <phantom@FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd October 12, 2021
+.Dt PTHREAD_SET_NAME_NP 3
+.Os
+.Sh NAME
+.Nm pthread_get_name_np ,
+.Nm pthread_getname_np ,
+.Nm pthread_set_name_np ,
+.Nm pthread_setname_np
+.Nd set and retrieve the thread name
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread_np.h
+.Ft void
+.Fn pthread_get_name_np "pthread_t thread" "char *name" "size_t len"
+.Ft int
+.Fn pthread_getname_np "pthread_t thread" "char *name" "size_t len"
+.Ft void
+.Fn pthread_set_name_np "pthread_t thread" "const char *name"
+.Ft int
+.Fn pthread_setname_np "pthread_t thread" "const char *name"
+.Sh DESCRIPTION
+The
+.Fn pthread_set_name_np
+and
+.Fn pthread_setname_np
+functions apply a copy of the given
+.Fa name
+to the given
+.Fa thread .
+.Pp
+The
+.Fn pthread_get_name_np
+and
+.Fn pthread_getname_np
+functions retrieve the
+.Fa name
+associated with
+.Fa thread .
+If
+.Fn pthread_set_name_np
+was not previously called for
+.Fa thread ,
+the buffer pointed to by
+.Fa name
+will be empty.
+.Sh ERRORS
+The
+.Nm pthread_getname_np
+and
+.Nm pthread_setname_np
+will fail if
+.Bl -tag -width Er
+.It Bq Er ESRCH
+No thread could be found in the current process corresponding to that
+specified by the given thread ID
+.Fa thread .
+.El
+.Pp
+Because of the debugging nature of
+.Nm pthread_get_name_np
+and
+.Nm pthread_set_name_np
+functions, all errors that may
+appear inside are silently ignored.
+.Sh SEE ALSO
+.Xr thr_set_name 2 ,
+.Xr pthread_np 3
+.Sh STANDARDS
+.Fn pthread_set_name_np
+and
+.Fn pthread_get_name_np
+are non-standard extensions.
+.Fn pthread_setname_np
+and
+.Fn pthread_getname_np
+are also non-standard, but are implemented by larger number of operating
+systems so they are in fact more portable.
+.Sh AUTHORS
+This manual page was written by
+.An Alexey Zelkin Aq Mt phantom@FreeBSD.org
+and
+.An Yuri Pankov Aq Mt yuripv@yuripv.net .
diff --git a/static/freebsd/man3/pthread_setspecific.3 b/static/freebsd/man3/pthread_setspecific.3
new file mode 100644
index 00000000..59079e35
--- /dev/null
+++ b/static/freebsd/man3/pthread_setspecific.3
@@ -0,0 +1,99 @@
+.\" Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>.
+.\" All rights reserved.
+.\"
+.\" 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. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by John Birrell.
+.\" 4. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd April 4, 1996
+.Dt PTHREAD_SETSPECIFIC 3
+.Os
+.Sh NAME
+.Nm pthread_setspecific
+.Nd set a thread-specific data value
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_setspecific "pthread_key_t key" "const void *value"
+.Sh DESCRIPTION
+The
+.Fn pthread_setspecific
+function associates a thread-specific value with a
+.Fa key
+obtained via a previous call to
+.Fn pthread_key_create .
+Different threads can bind different values to the same key.
+These values are
+typically pointers to blocks of dynamically allocated memory that have been
+reserved for use by the calling thread.
+.Pp
+The effect of calling
+.Fn pthread_setspecific
+with a key value not obtained from
+.Fn pthread_key_create
+or after
+.Fa key
+has been deleted with
+.Fn pthread_key_delete
+is undefined.
+.Pp
+The
+.Fn pthread_setspecific
+function may be called from a thread-specific data destructor function,
+however this may result in lost storage or infinite loops if doing so
+causes non-NULL key values to remain after
+.Bq PTHREAD_DESTRUCTOR_ITERATIONS
+iterations of destructor calls have been made.
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_setspecific
+function will return zero.
+Otherwise an error number will be returned to
+indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_setspecific
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er ENOMEM
+Insufficient memory exists to associate the value with the
+.Fa key .
+.It Bq Er EINVAL
+The
+.Fa key
+value is invalid.
+.El
+.Sh SEE ALSO
+.Xr pthread_getspecific 3 ,
+.Xr pthread_key_create 3 ,
+.Xr pthread_key_delete 3
+.Sh STANDARDS
+The
+.Fn pthread_setspecific
+function conforms to
+.St -p1003.1-96 .
diff --git a/static/freebsd/man3/pthread_sigmask.3 b/static/freebsd/man3/pthread_sigmask.3
new file mode 100644
index 00000000..8d2a5d65
--- /dev/null
+++ b/static/freebsd/man3/pthread_sigmask.3
@@ -0,0 +1,97 @@
+.\" Copyright (C) 2000 Jason Evans <jasone@FreeBSD.org>.
+.\" All rights reserved.
+.\"
+.\" 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(s), this list of conditions and the following disclaimer as
+.\"    the first lines of this file unmodified other than the possible
+.\"    addition of one or more copyright notices.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice(s), this list of conditions and the following disclaimer in
+.\"    the documentation and/or other materials provided with the
+.\"    distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``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 COPYRIGHT HOLDER(S) 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.
+.Dd February 19, 2011
+.Dt PTHREAD_SIGMASK 3
+.Os
+.Sh NAME
+.Nm pthread_sigmask
+.Nd examine and/or change a thread's signal mask
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.In signal.h
+.Ft int
+.Fn pthread_sigmask "int how" "const sigset_t * restrict set" \
+    "sigset_t * restrict oset"
+.Sh DESCRIPTION
+The
+.Fn pthread_sigmask
+function examines and/or changes the calling thread's signal mask.
+.Pp
+If
+.Fa set
+is not
+.Dv NULL ,
+it specifies a set of signals to be modified, and
+.Fa how
+specifies what to set the signal mask to:
+.Bl -tag -width SIG_UNBLOCK
+.It Dv SIG_BLOCK
+Union of the current mask and
+.Fa set .
+.It Dv SIG_UNBLOCK
+Intersection of the current mask and the complement of
+.Fa set .
+.It Dv SIG_SETMASK
+.Fa set .
+.El
+.Pp
+If
+.Fa oset
+is not NULL, the previous signal mask is stored in the location pointed to by
+.Fa oset .
+.Pp
+.Dv SIGKILL
+and
+.Dv SIGSTOP
+cannot be blocked, and will be silently ignored if included in the signal mask.
+.Sh RETURN VALUES
+If successful,
+.Fn pthread_sigmask
+returns 0.
+Otherwise, an error is returned.
+.Sh ERRORS
+The
+.Fn pthread_sigmask
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+.Fa how
+is not one of the defined values.
+.El
+.Sh SEE ALSO
+.Xr sigaction 2 ,
+.Xr sigpending 2 ,
+.Xr sigprocmask 2 ,
+.Xr sigsuspend 2 ,
+.Xr sigsetops 3
+.Sh STANDARDS
+The
+.Fn pthread_sigmask
+function conforms to
+.St -p1003.1-96
diff --git a/static/freebsd/man3/pthread_signals_block_np.3 b/static/freebsd/man3/pthread_signals_block_np.3
new file mode 100644
index 00000000..de33f4e6
--- /dev/null
+++ b/static/freebsd/man3/pthread_signals_block_np.3
@@ -0,0 +1,81 @@
+.\" Copyright (c) 2025 The FreeBSD Foundation
+.\" All rights reserved.
+.\"
+.\" SPDX-License-Identifier: BSD-2-Clause
+.\"
+.\" This documentation was written by
+.\" Konstantin Belousov <kib@FreeBSD.org> under sponsorship
+.\" from the FreeBSD Foundation.
+.\"
+.Dd May 16, 2025
+.Dt PTHREAD_SIGNALS_BLOCK_NP 3
+.Os
+.Sh NAME
+.Nm pthread_signals_block_np ,
+.Nm pthread_signals_unblock_np
+.Nd fast asynchronous signals blocking and unblocking
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread_np.h
+.Ft void
+.Fn pthread_signals_block_np "void"
+.Ft void
+.Fn pthread_signals_unblock_np "void"
+.Sh DESCRIPTION
+The
+.Fn pthread_signals_block_np
+and
+.Fn pthread_signals_unblock_np
+functions provide user programs an interface to the fast asynchronous
+signals blocking facility
+.Xr sigfastblock 2 .
+.Pp
+Blocking signals with
+.Fn pthread_signals_block_np
+disables delivery of any asynchronous signal, until unblocked.
+Signal blocking establishes a critical section where the execution
+flow of the thread cannot be diverted into a signal handler.
+Blocking signals is fast, it is performed by a single memory write into
+a location established with the kernel.
+.Pp
+Synchronous signal delivery cannot be blocked in general, including with
+these functions.
+.Pp
+The blocked state established by the
+.Fn pthread_signals_block_np
+is not completely POSIX-compliant.
+Specifically, system calls executed while in a blocked section,
+might abort sleep and return
+.Er EINTR
+upon queuing of an asynchronous signal to the thread,
+but the signal handler is not called until the last unblock is done.
+.Pp
+Calls to
+.Nm pthread_signals_block_np
+can be nested, and must be complemented by an equal count of
+calls to
+.Nm pthread_signals_unblock_np
+to return the calling thread to the standard mode of signal receiving.
+.Pp
+An example use of these function might be the construction of the CPU
+state that cannot be done atomically, and which includes stages where
+the state of the thread is not ABI compliant.
+If a signal is delivered while such state is not yet finished, signal
+handlers would misbehave.
+Using standard functions
+.Pq Fn sigprocmask
+to establish critical section might be much slower, because
+.Fn sigprocmask
+is system call, while
+.Fn pthread_signals_block_np
+consists of a single atomic memory write.
+.Sh RETURN VALUES
+The functions do not return a value.
+.Sh ERRORS
+There are no errors reported by the functions.
+.Sh SEE ALSO
+.Xr sigfastblock 2 ,
+.Xr sigprocmask 2 ,
+.Xr pthread_sigmask 3 ,
+.Xr pthread_np 3
diff --git a/static/freebsd/man3/pthread_sigqueue.3 b/static/freebsd/man3/pthread_sigqueue.3
new file mode 100644
index 00000000..852f6314
--- /dev/null
+++ b/static/freebsd/man3/pthread_sigqueue.3
@@ -0,0 +1,102 @@
+.\" SPDX-License-Identifier: BSD-2-Clause
+.\"
+.\" Copyright 2024 The FreeBSD Foundation
+.\"
+.\" This documentation was written by
+.\" Konstantin Belousov <kib@FreeBSD.org> under sponsorship
+.\" from the FreeBSD Foundation.
+.\"
+.\" 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(s), this list of conditions and the following disclaimer as
+.\"    the first lines of this file unmodified other than the possible
+.\"    addition of one or more copyright notices.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice(s), this list of conditions and the following disclaimer in
+.\"    the documentation and/or other materials provided with the
+.\"    distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``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 COPYRIGHT HOLDER(S) 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.
+.\"
+.Dd April 21, 2024
+.Dt PTHREAD_SIGQUEUE 3
+.Os
+.Sh NAME
+.Nm pthread_sigqueue
+.Nd queue a signal to a specified thread
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.In signal.h
+.Ft int
+.Fn pthread_sigqueue "pthread_t thread" "int sig" "const union sigval value"
+.Sh DESCRIPTION
+The
+.Fn pthread_queue
+function queues a signal, specified by
+.Fa sig ,
+to a thread, specified by
+.Fa thread .
+If
+.Fa sig
+is 0, error checking is performed, but no signal is actually sent.
+The
+.Fa value
+is queued together with the signal, and becomes available in
+.Vt siginfo_t
+data passed to the signal handler.
+.Pp
+The
+.Nm
+function is similar to
+.Xr sigqueue 2 ,
+but targets a thread in the current process instead of a process.
+See
+.Xr sigqueue 2
+for details about signal queueing and delivery selection.
+.Sh RETURN VALUES
+If successful,
+.Fn pthread_sigqueue
+returns 0.
+Otherwise, an error number is returned.
+.Sh ERRORS
+The
+.Fn pthread_sigqueue
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EAGAIN
+No resources are available to queue the signal.
+The current process has already queued
+.Brq Dv SIGQUEUE_MAX
+signals that are still pending,
+or a system-wide resource limit has been exceeded.
+.It Bq Er ESRCH
+.Fa thread
+is an invalid thread ID.
+.It Bq Er EINVAL
+.Fa sig
+is an invalid or unsupported signal number.
+.El
+.Sh SEE ALSO
+.Xr sigqueue 2
+.Sh STANDARDS
+The
+.Fn pthread_sigqueue
+function is a
+.Fx
+extension.
+An identical function with the same semantic is available in other
+operating systems.
diff --git a/static/freebsd/man3/pthread_spin_init.3 b/static/freebsd/man3/pthread_spin_init.3
new file mode 100644
index 00000000..4820ddcf
--- /dev/null
+++ b/static/freebsd/man3/pthread_spin_init.3
@@ -0,0 +1,123 @@
+.\" Copyright (c) 2004 Michael Telahun Makonnen
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd May 31, 2016
+.Dt PTHREAD_SPIN_INIT 3
+.Os
+.Sh NAME
+.Nm pthread_spin_init , pthread_spin_destroy
+.Nd "initialize or destroy a spin lock"
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_spin_init "pthread_spinlock_t *lock" "int pshared"
+.Ft int
+.Fn pthread_spin_destroy "pthread_spinlock_t *lock"
+.Sh DESCRIPTION
+The
+.Fn pthread_spin_init
+function will initialize
+.Fa lock
+to an unlocked state and
+allocate any resources necessary to begin using it.
+If
+.Fa pshared
+is set to
+.Dv PTHREAD_PROCESS_SHARED ,
+any thread,
+whether belonging to the process in which the spinlock was created or not,
+that has access to the memory area where
+.Fa lock
+resides, can use
+.Fa lock .
+If it is set to
+.Dv PTHREAD_PROCESS_PRIVATE ,
+it can only be used by threads within the same process.
+.Pp
+The
+.Fn pthread_spin_destroy
+function will destroy
+.Fa lock
+and release any resources that may have been allocated on its behalf.
+.Sh RETURN VALUES
+If successful,
+both
+.Fn pthread_spin_init
+and
+.Fn pthread_spin_destroy
+will return zero.
+Otherwise, an error number will be returned to indicate the error.
+.Pp
+Neither of these functions will return
+.Er EINTR .
+.Sh ERRORS
+The
+.Fn pthread_spin_init
+and
+.Fn pthread_spin_destroy
+functions will fail if:
+.Bl -tag -width Er
+.It Bq Er EBUSY
+An attempt to initialize or destroy
+.Fa lock
+while it is in use.
+.It Bq Er EINVAL
+The value specified by
+.Fa lock
+is invalid.
+.El
+.Pp
+The
+.Fn pthread_spin_init
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EAGAIN
+Insufficient resources,
+other than memory,
+to initialize
+.Fa lock .
+.It Bq Er ENOMEM
+Insufficient memory to initialize
+.Fa lock .
+.El
+.Sh SEE ALSO
+.Xr pthread_spin_lock 3 ,
+.Xr pthread_spin_unlock 3
+.Sh HISTORY
+The
+.Fn pthread_spin_init
+and
+.Fn pthread_spin_destroy
+functions first appeared in
+.Lb libkse
+in
+.Fx 5.2 ,
+and in
+.Lb libthr
+in
+.Fx 5.3 .
+Support for process-shared spinlocks appeared in
+.Fx 11.0 .
diff --git a/static/freebsd/man3/pthread_spin_lock.3 b/static/freebsd/man3/pthread_spin_lock.3
new file mode 100644
index 00000000..4308271a
--- /dev/null
+++ b/static/freebsd/man3/pthread_spin_lock.3
@@ -0,0 +1,136 @@
+.\" Copyright (c) 2004 Michael Telahun Makonnen
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd January 22, 2004
+.Dt PTHREAD_SPIN_LOCK 3
+.Os
+.Sh NAME
+.Nm pthread_spin_lock , pthread_spin_trylock , pthread_spin_unlock
+.Nd "lock or unlock a spin lock"
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_spin_lock "pthread_spinlock_t *lock"
+.Ft int
+.Fn pthread_spin_trylock "pthread_spinlock_t *lock"
+.Ft int
+.Fn pthread_spin_unlock "pthread_spinlock_t *lock"
+.Sh DESCRIPTION
+The
+.Fn pthread_spin_lock
+function will acquire
+.Fa lock
+if it is not currently owned by another thread.
+If the lock cannot be acquired immediately, it will
+spin attempting to acquire the lock (it will not sleep) until
+it becomes available.
+.Pp
+The
+.Fn pthread_spin_trylock
+function is the same as
+.Fn pthread_spin_lock
+except that if it cannot acquire
+.Fa lock
+immediately it will return with an error.
+.Pp
+The
+.Fn pthread_spin_unlock
+function will release
+.Fa lock ,
+which must have been previously locked by a call to
+.Fn pthread_spin_lock
+or
+.Fn pthread_spin_trylock .
+.Sh RETURN VALUES
+If successful, all these functions will return zero.
+Otherwise, an error number will be returned to indicate the error.
+.Pp
+None of these functions will return
+.Er EINTR .
+.Sh ERRORS
+The
+.Fn pthread_spin_lock ,
+.Fn pthread_spin_trylock
+and
+.Fn pthread_spin_unlock
+functions will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa lock
+is invalid or is not initialized.
+.El
+.Pp
+The
+.Fn pthread_spin_lock
+function may fail if:
+.Bl -tag -width Er
+.It Bq Er EDEADLK
+The calling thread already owns the lock.
+.El
+.Pp
+The
+.Fn pthread_spin_trylock
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EBUSY
+Another thread currently holds
+.Fa lock .
+.El
+.Pp
+The
+.Fn pthread_spin_unlock
+function may fail if:
+.Bl -tag -width Er
+.It Bq Er EPERM
+The calling thread does not own
+.Fa lock .
+.El
+.Sh SEE ALSO
+.Xr pthread_spin_destroy 3 ,
+.Xr pthread_spin_init 3
+.Sh HISTORY
+The
+.Fn pthread_spin_lock ,
+.Fn pthread_spin_trylock
+and
+.Fn pthread_spin_unlock
+functions first appeared in
+.Lb libkse
+in
+.Fx 5.2 ,
+and in
+.Lb libthr
+in
+.Fx 5.3 .
+.Sh BUGS
+The implementation of
+.Fn pthread_spin_lock ,
+.Fn pthread_spin_trylock
+and
+.Fn pthread_spin_unlock
+is expected to conform to
+.St -p1003.2 .
diff --git a/static/freebsd/man3/pthread_suspend_all_np.3 b/static/freebsd/man3/pthread_suspend_all_np.3
new file mode 100644
index 00000000..c99a08a0
--- /dev/null
+++ b/static/freebsd/man3/pthread_suspend_all_np.3
@@ -0,0 +1,59 @@
+.\" Copyright (c) 2003 Alexey Zelkin <phantom@FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd October 12, 2021
+.Dt PTHREAD_SUSPEND_ALL_NP 3
+.Os
+.Sh NAME
+.Nm pthread_suspend_all_np
+.Nd suspend all active threads
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread_np.h
+.Ft void
+.Fn pthread_suspend_all_np void
+.Sh DESCRIPTION
+The
+.Fn pthread_suspend_all_np
+function causes all active threads to be suspended.
+The only exception is the current thread,
+the thread that called the
+.Fn pthread_suspend_all_np
+function.
+.Pp
+It is not safe for the caller of the
+.Fn pthread_suspend_all_np
+function to use any non-async signal safe functions, besides
+.Xr pthread_resume_all_np 3 ,
+until threads are resumed, unless measures are taken to ensure
+that all threads are suspended at safe points.
+.Sh SEE ALSO
+.Xr pthread_np 3 ,
+.Xr pthread_resume_all_np 3 ,
+.Xr pthread_resume_np 3 ,
+.Xr pthread_suspend_np 3
+.Sh AUTHORS
+This manual page was written by
+.An Alexey Zelkin Aq Mt phantom@FreeBSD.org .
diff --git a/static/freebsd/man3/pthread_suspend_np.3 b/static/freebsd/man3/pthread_suspend_np.3
new file mode 100644
index 00000000..8e05bac0
--- /dev/null
+++ b/static/freebsd/man3/pthread_suspend_np.3
@@ -0,0 +1,76 @@
+.\" Copyright (c) 2003 Alexey Zelkin <phantom@FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd October 12, 2021
+.Dt PTHREAD_SUSPEND_NP 3
+.Os
+.Sh NAME
+.Nm pthread_suspend_np
+.Nd suspend a thread
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread_np.h
+.Ft int
+.Fn pthread_suspend_np "pthread_t tid"
+.Sh DESCRIPTION
+The
+.Fn pthread_suspend_np
+function, called on an active thread, causes it to suspend.
+.Pp
+It is not safe for the caller of the
+.Fn pthread_suspend_np
+function to use any non-async signal safe functions, except
+.Xr pthread_resume_np 3 ,
+until suspended thread is resumed, unless measures are taken to ensure
+that the thread is suspended at a safe point.
+.Sh RETURN VALUES
+If successful,
+.Fn pthread_suspend_np
+function returns 0.
+Otherwise, an error number is returned to indicate the error.
+.Sh ERRORS
+The
+.Fn pthread_suspend_np
+function will fail if:
+.Bl -tag -width Er
+.It Bq Er EDEADLK
+An attempt was made to suspend the current thread.
+.It Bq Er EINVAL
+The value specified by the
+.Fa tid
+argument is invalid.
+.It Bq Er ESRCH
+No thread could be found corresponding to the thread ID specified by the
+.Fa tid
+argument.
+.El
+.Sh SEE ALSO
+.Xr pthread_np 3 ,
+.Xr pthread_resume_all_np 3 ,
+.Xr pthread_resume_np 3 ,
+.Xr pthread_suspend_all_np 3
+.Sh AUTHORS
+This manual page was written by
+.An Alexey Zelkin Aq Mt phantom@FreeBSD.org .
diff --git a/static/freebsd/man3/pthread_testcancel.3 b/static/freebsd/man3/pthread_testcancel.3
new file mode 100644
index 00000000..c74cdcfe
--- /dev/null
+++ b/static/freebsd/man3/pthread_testcancel.3
@@ -0,0 +1,263 @@
+.Dd March 18, 2017
+.Dt PTHREAD_TESTCANCEL 3
+.Os
+.Sh NAME
+.Nm pthread_setcancelstate ,
+.Nm pthread_setcanceltype ,
+.Nm pthread_testcancel
+.Nd set cancelability state
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft int
+.Fn pthread_setcancelstate "int state" "int *oldstate"
+.Ft int
+.Fn pthread_setcanceltype "int type" "int *oldtype"
+.Ft void
+.Fn pthread_testcancel "void"
+.Sh DESCRIPTION
+The
+.Fn pthread_setcancelstate
+function atomically both sets the calling thread's cancelability state
+to the indicated
+.Fa state
+and, if
+.Fa oldstate
+is not
+.Dv NULL ,
+returns the previous cancelability state at the location referenced by
+.Fa oldstate .
+Legal values for
+.Fa state
+are
+.Dv PTHREAD_CANCEL_ENABLE
+and
+.Dv PTHREAD_CANCEL_DISABLE .
+The function is async-signal-safe.
+.Pp
+The
+.Fn pthread_setcanceltype
+function atomically both sets the calling thread's cancelability type
+to the indicated
+.Fa type
+and, if
+.Fa oldtype
+is not
+.Dv NULL ,
+returns the previous cancelability type at the location referenced by
+.Fa oldtype .
+Legal values for
+.Fa type
+are
+.Dv PTHREAD_CANCEL_DEFERRED
+and
+.Dv PTHREAD_CANCEL_ASYNCHRONOUS .
+.Pp
+The cancelability state and type of any newly created threads, including the
+thread in which
+.Fn main
+was first invoked, are
+.Dv PTHREAD_CANCEL_ENABLE
+and
+.Dv PTHREAD_CANCEL_DEFERRED
+respectively.
+.Pp
+The
+.Fn pthread_testcancel
+function creates a cancellation point in the calling thread.
+The
+.Fn pthread_testcancel
+function has no effect if cancelability is disabled.
+.Ss Cancelability States
+The cancelability state of a thread determines the action taken upon
+receipt of a cancellation request.
+The thread may control cancellation in
+a number of ways.
+.Pp
+Each thread maintains its own
+.Dq cancelability state
+which may be encoded in two bits:
+.Bl -hang
+.It Em Cancelability Enable
+When cancelability is
+.Dv PTHREAD_CANCEL_DISABLE ,
+cancellation requests against the target thread are held pending.
+.It Em Cancelability Type
+When cancelability is enabled and the cancelability type is
+.Dv PTHREAD_CANCEL_ASYNCHRONOUS ,
+new or pending cancellation requests may be acted upon at any time.
+When cancelability is enabled and the cancelability type is
+.Dv PTHREAD_CANCEL_DEFERRED ,
+cancellation requests are held pending until a cancellation point (see
+below) is reached.
+If cancelability is disabled, the setting of the
+cancelability type has no immediate effect as all cancellation requests
+are held pending; however, once cancelability is enabled again the new
+type will be in effect.
+.El
+.Ss Cancellation Points
+Cancellation points will occur when a thread is executing the following
+functions:
+.Bl -tag -width "Fn pthread_cond_timedwait" -compact
+.It Fn accept
+.It Fn accept4
+.It Fn aio_suspend
+.It Fn connect
+.It Fn clock_nanosleep
+.It Fn close
+.It Fn creat
+.It Fn fcntl
+The
+.Fn fcntl
+function is a cancellation point if
+.Fa cmd
+is
+.Dv F_SETLKW .
+.It Fn fdatasync
+.It Fn fsync
+.It Fn kevent
+The
+.Fn kevent
+function is a cancellation point if it is potentially blocking,
+such as when the
+.Fa nevents
+argument is non-zero.
+.It Fn mq_receive
+.It Fn mq_send
+.It Fn mq_timedreceive
+.It Fn mq_timedsend
+.It Fn msync
+.It Fn nanosleep
+.It Fn open
+.It Fn openat
+.It Fn pause
+.It Fn poll
+.It Fn ppoll
+.It Fn pselect
+.It Fn pthread_cond_timedwait
+.It Fn pthread_cond_wait
+.It Fn pthread_join
+.It Fn pthread_testcancel
+.It Fn read
+.It Fn readv
+.It Fn recv
+.It Fn recvfrom
+.It Fn recvmsg
+.It Fn select
+.It Fn sem_timedwait
+.It Fn sem_clockwait_np
+.It Fn sem_wait
+.It Fn send
+.It Fn sendmsg
+.It Fn sendto
+.It Fn sigsuspend
+.It Fn sigtimedwait
+.It Fn sigwaitinfo
+.It Fn sigwait
+.It Fn sleep
+.It Fn system
+.It Fn tcdrain
+.It Fn usleep
+.It Fn wait
+.It Fn wait3
+.It Fn wait4
+.It Fn wait6
+.It Fn waitid
+.It Fn waitpid
+.It Fn write
+.It Fn writev
+.El
+.Sh NOTES
+The
+.Fn pthread_setcancelstate
+and
+.Fn pthread_setcanceltype
+functions are used to control the points at which a thread may be
+asynchronously canceled.
+For cancellation control to be usable in modular
+fashion, some rules must be followed.
+.Pp
+For purposes of this discussion, consider an object to be a generalization
+of a procedure.
+It is a set of procedures and global variables written as
+a unit and called by clients not known by the object.
+Objects may depend
+on other objects.
+.Pp
+First, cancelability should only be disabled on entry to an object, never
+explicitly enabled.
+On exit from an object, the cancelability state should
+always be restored to its value on entry to the object.
+.Pp
+This follows from a modularity argument: if the client of an object (or the
+client of an object that uses that object) has disabled cancelability, it is
+because the client does not want to have to worry about how to clean up if the
+thread is canceled while executing some sequence of actions.
+If an object
+is called in such a state and it enables cancelability and a cancellation
+request is pending for that thread, then the thread will be canceled,
+contrary to the wish of the client that disabled.
+.Pp
+Second, the cancelability type may be explicitly set to either
+.Em deferred
+or
+.Em asynchronous
+upon entry to an object.
+But as with the cancelability state, on exit from
+an object that cancelability type should always be restored to its value on
+entry to the object.
+.Pp
+Finally, only functions that are cancel-safe may be called from a thread that
+is asynchronously cancelable.
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_setcancelstate
+and
+.Fn pthread_setcanceltype
+functions will return zero.
+Otherwise, an error number shall be returned to
+indicate the error.
+.Sh ERRORS
+The function
+.Fn pthread_setcancelstate
+may fail with:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The specified state is not
+.Dv PTHREAD_CANCEL_ENABLE
+or
+.Dv PTHREAD_CANCEL_DISABLE .
+.El
+.Pp
+The function
+.Fn pthread_setcanceltype
+may fail with:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The specified state is not
+.Dv PTHREAD_CANCEL_DEFERRED
+or
+.Dv PTHREAD_CANCEL_ASYNCHRONOUS .
+.El
+.Sh SEE ALSO
+.Xr pthread_cancel 3
+.Sh STANDARDS
+The
+.Fn pthread_testcancel
+function conforms to
+.St -p1003.1-96 .
+The standard allows implementations to make many more functions
+cancellation points.
+.Pp
+The
+.Fn pthread_setcancelstate
+function is async-signal-safe as required by
+.St -p1003.1-2024 .
+.Sh AUTHORS
+This manual page was written by
+.An David Leonard Aq Mt d@openbsd.org
+for the
+.Ox
+implementation of
+.Xr pthread_cancel 3 .
diff --git a/static/freebsd/man3/pthread_yield.3 b/static/freebsd/man3/pthread_yield.3
new file mode 100644
index 00000000..e9ef6491
--- /dev/null
+++ b/static/freebsd/man3/pthread_yield.3
@@ -0,0 +1,28 @@
+.\" $OpenBSD: pthread_yield.3,v 1.3 2004/01/25 14:48:32 jmc Exp $
+.\"
+.\" PUBLIC DOMAIN: No Rights Reserved. Marco S Hyman <marc@snafu.org>
+.\"
+.Dd September 18, 2006
+.Dt PTHREAD_YIELD 3
+.Os
+.Sh NAME
+.Nm pthread_yield
+.Nd yield control of the current thread
+.Sh LIBRARY
+.Lb libpthread
+.Sh SYNOPSIS
+.In pthread.h
+.Ft void
+.Fn pthread_yield void
+.Sh DESCRIPTION
+The
+.Fn pthread_yield
+forces the running thread to relinquish the processor until it again
+becomes the head of its thread list.
+.Sh SEE ALSO
+.Xr sched_yield 2
+.Sh STANDARDS
+The
+.Fn pthread_yield
+is a non-portable (but quite common) extension to
+.St -p1003.1-2001 .
diff --git a/static/freebsd/man3/qmath.3 b/static/freebsd/man3/qmath.3
new file mode 100644
index 00000000..5c2332f0
--- /dev/null
+++ b/static/freebsd/man3/qmath.3
@@ -0,0 +1,387 @@
+.\"
+.\" Copyright (c) 2018 Netflix, Inc.
+.\" All rights reserved.
+.\"
+.\" 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,
+.\"    without modification, immediately at the beginning of the file.
+.\" 2. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd July 4, 2019
+.Dt QMATH 3
+.Os
+.Sh NAME
+.Nm qmath
+.Nd fixed-point math library based on the
+.Dq Q
+number format
+.Sh SYNOPSIS
+.In sys/qmath.h
+.Sh DESCRIPTION
+The
+.Nm
+data types and APIs support fixed-point math based on the
+.Dq Q
+number format.
+The APIs have been built around the following data types:
+.Vt s8q_t ,
+.Vt u8q_t ,
+.Vt s16q_t ,
+.Vt u16q_t ,
+.Vt s32q_t ,
+.Vt u32q_t ,
+.Vt s64q_t ,
+and
+.Vt u64q_t ,
+which are referred to generically in the earlier API definitions as
+.Fa QTYPE .
+The
+.Fa ITYPE
+refers to the
+.Xr stdint 7
+integer types.
+.Fa NTYPE
+is used to refer to any numeric type and is therefore a superset of
+.Fa QTYPE
+and
+.Fa ITYPE .
+.Pp
+This scheme can represent Q numbers with
+.Bq 2, 4, 6, 8, 16, 32, 48
+bits of precision after the binary radix point,
+depending on the
+.Fa rpshft
+argument to
+.Fn Q_INI .
+The number of bits available for the integral component is not explicitly
+specified, and implicitly consumes the remaining available bits of the chosen Q
+data type.
+.Pp
+Operations on Q numbers maintain the precision of their arguments.
+The fractional component is truncated to fit into the destination,
+with no rounding.
+None of the operations is affected by the floating-point environment.
+.Pp
+For more details, see the
+.Sx IMPLEMENTATION DETAILS
+below.
+.Sh LIST OF FUNCTIONS
+.de Cl
+.Bl -column "isgreaterequal" "bessel function of the second kind of the order 0"
+.Em "Name	Description"
+..
+.Ss Functions which create/initialise a Q number
+.Cl
+.Xr Q_INI 3	initialise a Q number
+.El
+.Ss Numeric functions which operate on two Q numbers
+.Cl
+.Xr Q_QADDQ 3	addition
+.Xr Q_QDIVQ 3	division
+.Xr Q_QMULQ 3	multiplication
+.Xr Q_QSUBQ 3	subtraction
+.Xr Q_NORMPREC 3	normalisation
+.Xr Q_QMAXQ 3	maximum function
+.Xr Q_QMINQ 3	minimum function
+.Xr Q_QCLONEQ 3	identical copy
+.Xr Q_QCPYVALQ 3	representational copy
+.El
+.Ss Numeric functions which apply integers to a Q number
+.Cl
+.Xr Q_QADDI 3	addition
+.Xr Q_QDIVI 3	division
+.Xr Q_QMULI 3	multiplication
+.Xr Q_QSUBI 3	subtraction
+.Xr Q_QFRACI 3	fraction
+.Xr Q_QCPYVALI 3	overwrite
+.El
+.Ss Numeric functions which operate on a single Q number
+.Cl
+.Xr Q_QABS 3	absolute value
+.Xr Q_Q2D 3	double representation
+.Xr Q_Q2F 3	float representation
+.El
+.Ss Comparison and logic functions
+.Cl
+.Xr Q_SIGNED 3	determine sign
+.Xr Q_LTZ 3	less than zero
+.Xr Q_PRECEQ 3	compare bits
+.Xr Q_QLTQ 3	less than
+.Xr Q_QLEQ 3	less or equal
+.Xr Q_QGTQ 3	greater than
+.Xr Q_QGEQ 3	greater or equal
+.Xr Q_QEQ 3	equal
+.Xr Q_QNEQ 3	not equal
+.Xr Q_OFLOW 3	would overflow
+.Xr Q_RELPREC 3	relative precision
+.El
+.Ss Functions which manipulate the control/sign data bits
+.Cl
+.Xr Q_SIGNSHFT 3	sign bit position
+.Xr Q_SSIGN 3	sign bit
+.Xr Q_CRAWMASK 3	control bitmask
+.Xr Q_SRAWMASK 3	sign bitmask
+.Xr Q_GCRAW 3	raw control bits
+.Xr Q_GCVAL 3	value of control bits
+.Xr Q_SCVAL 3	set control bits
+.El
+.Ss Functions which manipulate the combined integer/fractional data bits
+.Cl
+.Xr Q_IFRAWMASK 3	integer/fractional bitmask
+.Xr Q_IFVALIMASK 3	value of integer bits
+.Xr Q_IFVALFMASK 3	value of fractional bits
+.Xr Q_GIFRAW 3	raw integer/fractional bits
+.Xr Q_GIFABSVAL 3	absolute value of fractional bits
+.Xr Q_GIFVAL 3	real value of fractional bits
+.Xr Q_SIFVAL 3	set integer/fractional bits
+.Xr Q_SIFVALS 3	set separate integer/fractional values
+.El
+.Ss Functions which manipulate the integer data bits
+.Cl
+.Xr Q_IRAWMASK 3	integer bitmask
+.Xr Q_GIRAW 3	raw integer bits
+.Xr Q_GIABSVAL 3	absolute value of integer bits
+.Xr Q_GIVAL 3	real value of integer bits
+.Xr Q_SIVAL 3	set integer bits
+.El
+.Ss Functions which manipulate the fractional data bits
+.Cl
+.Xr Q_FRAWMASK 3	fractional bitmask
+.Xr Q_GFRAW 3	raw fractional bits
+.Xr Q_GFABSVAL 3	absolute value of fractional bits
+.Xr Q_GFVAL 3	real value of fractional bits
+.Xr Q_SFVAL 3	set fractional bits
+.El
+.Ss Miscellaneous functions/variables
+.Cl
+.Xr Q_NCBITS 3	number of reserved control bits
+.Xr Q_BT 3	C data type
+.Xr Q_TC 3	casted data type
+.Xr Q_NTBITS 3	number of total bits
+.Xr Q_NFCBITS 3	number of control-encoded fractional bits
+.Xr Q_MAXNFBITS 3	number of maximum fractional bits
+.Xr Q_NFBITS 3	number of effective fractional bits
+.Xr Q_NIBITS 3	number of integer bits
+.Xr Q_RPSHFT 3	bit position of radix point
+.Xr Q_ABS 3	absolute value
+.Xr Q_MAXSTRLEN 3	number of characters to render string
+.Xr Q_TOSTR 3	render string
+.Xr Q_SHL 3	left-shifted value
+.Xr Q_SHR 3	right-shifted value
+.Xr Q_DEBUG 3	render debugging information
+.Xr Q_DFV2BFV 3	convert decimal fractional value
+.El
+.Sh IMPLEMENTATION DETAILS
+The
+.Nm
+data types and APIs support fixed-point math based on the
+.Dq Q
+number format.
+This implementation uses the Q notation
+.Em Qm.n ,
+where
+.Em m
+specifies the number of bits for integral data
+.Pq excluding the sign bit for signed types ,
+and
+.Em n
+specifies the number of bits for fractional data.
+.Pp
+The APIs have been built around the following q_t derived data types:
+.Bd -literal -offset indent
+typedef int8_t		s8q_t;
+typedef uint8_t		u8q_t;
+typedef int16_t		s16q_t;
+typedef uint16_t	u16q_t;
+typedef int32_t		s32q_t;
+typedef uint32_t	u32q_t;
+typedef int64_t		s64q_t;
+typedef uint64_t	u64q_t;
+.Ed
+.Pp
+These types are referred to generically in the earlier API definitions as
+.Fa QTYPE ,
+while
+.Fa ITYPE
+refers to the
+.Xr stdint 7
+integer types the Q data types are derived from.
+.Fa NTYPE
+is used to refer to any numeric type and is therefore a superset of
+.Fa QTYPE
+and
+.Fa ITYPE .
+.Pp
+The 3 least significant bits
+.Pq LSBs
+of all q_t data types are reserved for embedded control data:
+.Bl -dash
+.It
+bits 1-2 specify the binary radix point shift index operand, with 00,01,10,11 ==
+1,2,3,4.
+.It
+bit 3 specifies the radix point shift index operand multiplier as 2
+.Pq 0
+or 16
+.Pq 1 .
+.El
+.Pp
+This scheme can therefore represent Q numbers with
+.Bq 2,4,6,8,16,32,48,64
+bits of precision after the binary radix point.
+The number of bits available for the integral component is not explicitly
+specified, and implicitly consumes the remaining available bits of the chosen Q
+data type.
+.Pp
+Additionally, the most significant bit
+.Pq MSB
+of signed Q types stores the sign bit, with bit value 0 representing a positive
+number and bit value 1 representing a negative number.
+Negative numbers are stored as absolute values with the sign bit set, rather
+than the more typical two's complement representation.
+This avoids having to bit shift negative numbers, which can result in undefined
+behaviour from some compilers.
+.Pp
+This binary representation used for Q numbers therefore comprises a set of
+distinct data bit types and associated bit counts.
+Data bit types/labels, listed in LSB to MSB order, are: control
+.Sq C ,
+fractional
+.Sq F ,
+integer
+.Sq I
+and sign
+.Sq S .
+The following example illustrates the binary representation of a Q20.8 number
+represented using a s32q_t variable:
+.Bd -literal -offset indent
+M                                                             L
+S                                                             S
+B                                                             B
+
+3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1
+1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+
+S I I I I I I I I I I I I I I I I I I I I F F F F F F F F C C C
+.Ed
+.Pp
+Important bit counts are: total, control, control-encoded fractional, maximum
+fractional, effective fractional and integer bits.
+.Pp
+The count of total bits is derived from the size of the q_t data type.
+For example, a s32q_t has 32 total bits.
+.Pp
+The count of control-encoded fractional bits is derived from calculating the
+number of fractional bits per the control bit encoding scheme.
+For example, the control bits binary value of 101 encodes a fractional bit
+count of 2 x 16 = 32 fractional bits.
+.Pp
+The count of maximum fractional bits is derived from the difference between the
+counts of total bits and control/sign bits.
+For example, a s32q_t has a maximum of 32 - 3 - 1 = 28 fractional bits.
+.Pp
+The count of effective fractional bits is derived from the minimum of the
+control-encoded fractional bits and the maximum fractional bits.
+For example, a s32q_t with 32 control-encoded fractional bits is effectively
+limited to 28 fractional bits.
+.Pp
+The count of integer bits is derived from the difference between the counts of
+total bits and all other non-integer data bits
+.Pq the sum of control, fractional and sign bits.
+For example, a s32q_t with 8 effective fractional bits has 32 - 3 - 8 - 1 = 20 integer
+bits.
+The count of integer bits can be zero if all available numeric data bits have
+been reserved for fractional data, e.g., when the number of control-encoded
+fractional bits is greater than or equal to the underlying Q data type's maximum
+fractional bits.
+.Sh EXAMPLES
+.Ss Calculating area of a circle with r=4.2 and rpshft=16
+.Bd -literal -offset indent
+u64q_t a, pi, r;
+char buf[32]
+
+Q_INI(&a, 0, 0, 16);
+Q_INI(&pi, 3, 14159, 16);
+Q_INI(&r, 4, 2, 16);
+
+Q_QCLONEQ(&a, r);
+Q_QMULQ(&a, r);
+Q_QMULQ(&a, pi);
+
+Q_TOSTR(a, -1, 10, buf, sizeof(buf));
+printf("%s\\n", buf);
+.Ed
+.Ss Debugging
+Declare a Q20.8 s32q_t number
+.Fa s32 ,
+initialise it with the fixed-point value for 5/3, and render a debugging
+representation of the variable
+.Pq including its full precision decimal C-string representation ,
+to the console:
+.Bd -literal -offset indent
+s32q_t s32;
+Q_INI(&s32, 0, 0, 8);
+Q_QFRACI(&s32, 5, 3);
+char buf[Q_MAXSTRLEN(s32, 10)];
+Q_TOSTR(s32, -1, 10, buf, sizeof(buf));
+printf(Q_DEBUG(s32, "", "\\n\\ttostr=%s\\n\\n", 0), buf);
+.Ed
+.Pp
+The above code outputs the following to the console:
+.Bd -literal -offset indent
+"s32"@0x7fffffffe7d4
+	type=s32q_t, Qm.n=Q20.8, rpshft=11, imin=0xfff00001, \\
+imax=0xfffff
+	qraw=0x00000d53
+	imask=0x7ffff800, fmask=0x000007f8, cmask=0x00000007, \\
+ifmask=0x7ffffff8
+	iraw=0x00000800, iabsval=0x1, ival=0x1
+	fraw=0x00000550, fabsval=0xaa, fval=0xaa
+	tostr=1.664
+.Ed
+.Pp
+Note: The
+.Qq \e
+present in the rendered output above indicates a manual line break inserted to
+keep the man page within 80 columns and is not part of the actual output.
+.Sh SEE ALSO
+.Xr errno 2 ,
+.Xr math 3 ,
+.Xr Q_FRAWMASK 3 ,
+.Xr Q_IFRAWMASK 3 ,
+.Xr Q_INI 3 ,
+.Xr Q_IRAWMASK 3 ,
+.Xr Q_QABS 3 ,
+.Xr Q_QADDI 3 ,
+.Xr Q_QADDQ 3 ,
+.Xr Q_SIGNED 3 ,
+.Xr Q_SIGNSHFT 3 ,
+.Xr stdint 7
+.Sh HISTORY
+The
+.Nm
+functions first appeared in
+.Fx 13.0 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+functions and this manual page were written by
+.An Lawrence Stewart Aq Mt lstewart@FreeBSD.org
+and sponsored by Netflix, Inc.
diff --git a/static/freebsd/man3/queue.3 b/static/freebsd/man3/queue.3
new file mode 100644
index 00000000..535358ae
--- /dev/null
+++ b/static/freebsd/man3/queue.3
@@ -0,0 +1,1487 @@
+.\" Copyright (c) 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" 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.
+.\"
+.Dd April 28, 2025
+.Dt QUEUE 3
+.Os
+.Sh NAME
+.Nm SLIST_CLASS_ENTRY ,
+.Nm SLIST_CLASS_HEAD ,
+.Nm SLIST_CONCAT ,
+.Nm SLIST_EMPTY ,
+.Nm SLIST_EMPTY_ATOMIC ,
+.Nm SLIST_ENTRY ,
+.Nm SLIST_FIRST ,
+.Nm SLIST_FOREACH ,
+.Nm SLIST_FOREACH_FROM ,
+.Nm SLIST_FOREACH_FROM_SAFE ,
+.Nm SLIST_FOREACH_SAFE ,
+.Nm SLIST_HEAD ,
+.Nm SLIST_HEAD_INITIALIZER ,
+.Nm SLIST_INIT ,
+.Nm SLIST_INSERT_AFTER ,
+.Nm SLIST_INSERT_HEAD ,
+.Nm SLIST_NEXT ,
+.Nm SLIST_REMOVE ,
+.Nm SLIST_REMOVE_AFTER ,
+.Nm SLIST_REMOVE_HEAD ,
+.Nm SLIST_SPLIT_AFTER ,
+.Nm SLIST_SWAP ,
+.Nm STAILQ_CLASS_ENTRY ,
+.Nm STAILQ_CLASS_HEAD ,
+.Nm STAILQ_CONCAT ,
+.Nm STAILQ_EMPTY ,
+.Nm STAILQ_EMPTY_ATOMIC ,
+.Nm STAILQ_ENTRY ,
+.Nm STAILQ_FIRST ,
+.Nm STAILQ_FOREACH ,
+.Nm STAILQ_FOREACH_FROM ,
+.Nm STAILQ_FOREACH_FROM_SAFE ,
+.Nm STAILQ_FOREACH_SAFE ,
+.Nm STAILQ_HEAD ,
+.Nm STAILQ_HEAD_INITIALIZER ,
+.Nm STAILQ_INIT ,
+.Nm STAILQ_INSERT_AFTER ,
+.Nm STAILQ_INSERT_HEAD ,
+.Nm STAILQ_INSERT_TAIL ,
+.Nm STAILQ_LAST ,
+.Nm STAILQ_NEXT ,
+.Nm STAILQ_REMOVE ,
+.Nm STAILQ_REMOVE_AFTER ,
+.Nm STAILQ_REMOVE_HEAD ,
+.Nm STAILQ_REVERSE ,
+.Nm STAILQ_SPLIT_AFTER ,
+.Nm STAILQ_SWAP ,
+.Nm LIST_CLASS_ENTRY ,
+.Nm LIST_CLASS_HEAD ,
+.Nm LIST_CONCAT ,
+.Nm LIST_EMPTY ,
+.Nm LIST_EMPTY_ATOMIC ,
+.Nm LIST_ENTRY ,
+.Nm LIST_FIRST ,
+.Nm LIST_FOREACH ,
+.Nm LIST_FOREACH_FROM ,
+.Nm LIST_FOREACH_FROM_SAFE ,
+.Nm LIST_FOREACH_SAFE ,
+.Nm LIST_HEAD ,
+.Nm LIST_HEAD_INITIALIZER ,
+.Nm LIST_INIT ,
+.Nm LIST_INSERT_AFTER ,
+.Nm LIST_INSERT_BEFORE ,
+.Nm LIST_INSERT_HEAD ,
+.Nm LIST_NEXT ,
+.Nm LIST_PREV ,
+.Nm LIST_REMOVE ,
+.Nm LIST_REPLACE ,
+.Nm LIST_SPLIT_AFTER ,
+.Nm LIST_SWAP ,
+.Nm TAILQ_CLASS_ENTRY ,
+.Nm TAILQ_CLASS_HEAD ,
+.Nm TAILQ_CONCAT ,
+.Nm TAILQ_EMPTY ,
+.Nm TAILQ_EMPTY_ATOMIC ,
+.Nm TAILQ_ENTRY ,
+.Nm TAILQ_FIRST ,
+.Nm TAILQ_FOREACH ,
+.Nm TAILQ_FOREACH_FROM ,
+.Nm TAILQ_FOREACH_FROM_SAFE ,
+.Nm TAILQ_FOREACH_REVERSE ,
+.Nm TAILQ_FOREACH_REVERSE_FROM ,
+.Nm TAILQ_FOREACH_REVERSE_FROM_SAFE ,
+.Nm TAILQ_FOREACH_REVERSE_SAFE ,
+.Nm TAILQ_FOREACH_SAFE ,
+.Nm TAILQ_HEAD ,
+.Nm TAILQ_HEAD_INITIALIZER ,
+.Nm TAILQ_INIT ,
+.Nm TAILQ_INSERT_AFTER ,
+.Nm TAILQ_INSERT_BEFORE ,
+.Nm TAILQ_INSERT_HEAD ,
+.Nm TAILQ_INSERT_TAIL ,
+.Nm TAILQ_LAST ,
+.Nm TAILQ_NEXT ,
+.Nm TAILQ_PREV ,
+.Nm TAILQ_REMOVE ,
+.Nm TAILQ_REPLACE ,
+.Nm TAILQ_SPLIT_AFTER ,
+.Nm TAILQ_SWAP
+.Nd implementations of singly-linked lists, singly-linked tail queues,
+lists and tail queues
+.Sh SYNOPSIS
+.In sys/queue.h
+.\"
+.Fn SLIST_CLASS_ENTRY "CLASSTYPE"
+.Fn SLIST_CLASS_HEAD "HEADNAME" "CLASSTYPE"
+.Fn SLIST_CONCAT "SLIST_HEAD *head1" "SLIST_HEAD *head2" "TYPE" "SLIST_ENTRY NAME"
+.Fn SLIST_EMPTY "SLIST_HEAD *head"
+.Fn SLIST_EMPTY_ATOMIC "SLIST_HEAD *head"
+.Fn SLIST_ENTRY "TYPE"
+.Fn SLIST_FIRST "SLIST_HEAD *head"
+.Fn SLIST_FOREACH "TYPE *var" "SLIST_HEAD *head" "SLIST_ENTRY NAME"
+.Fn SLIST_FOREACH_FROM "TYPE *var" "SLIST_HEAD *head" "SLIST_ENTRY NAME"
+.Fn SLIST_FOREACH_FROM_SAFE "TYPE *var" "SLIST_HEAD *head" "SLIST_ENTRY NAME" "TYPE *temp_var"
+.Fn SLIST_FOREACH_SAFE "TYPE *var" "SLIST_HEAD *head" "SLIST_ENTRY NAME" "TYPE *temp_var"
+.Fn SLIST_HEAD "HEADNAME" "TYPE"
+.Fn SLIST_HEAD_INITIALIZER "SLIST_HEAD head"
+.Fn SLIST_INIT "SLIST_HEAD *head"
+.Fn SLIST_INSERT_AFTER "TYPE *listelm" "TYPE *elm" "SLIST_ENTRY NAME"
+.Fn SLIST_INSERT_HEAD "SLIST_HEAD *head" "TYPE *elm" "SLIST_ENTRY NAME"
+.Fn SLIST_NEXT "TYPE *elm" "SLIST_ENTRY NAME"
+.Fn SLIST_REMOVE "SLIST_HEAD *head" "TYPE *elm" "TYPE" "SLIST_ENTRY NAME"
+.Fn SLIST_REMOVE_AFTER "TYPE *elm" "SLIST_ENTRY NAME"
+.Fn SLIST_REMOVE_HEAD "SLIST_HEAD *head" "SLIST_ENTRY NAME"
+.Fn SLIST_SPLIT_AFTER "SLIST_HEAD *head" "TYPE *elm" "SLIST_HEAD *rest" "SLIST_ENTRY NAME"
+.Fn SLIST_SWAP "SLIST_HEAD *head1" "SLIST_HEAD *head2" "TYPE"
+.\"
+.Fn STAILQ_CLASS_ENTRY "CLASSTYPE"
+.Fn STAILQ_CLASS_HEAD "HEADNAME" "CLASSTYPE"
+.Fn STAILQ_CONCAT "STAILQ_HEAD *head1" "STAILQ_HEAD *head2"
+.Fn STAILQ_EMPTY "STAILQ_HEAD *head"
+.Fn STAILQ_EMPTY_ATOMIC "STAILQ_HEAD *head"
+.Fn STAILQ_ENTRY "TYPE"
+.Fn STAILQ_FIRST "STAILQ_HEAD *head"
+.Fn STAILQ_FOREACH "TYPE *var" "STAILQ_HEAD *head" "STAILQ_ENTRY NAME"
+.Fn STAILQ_FOREACH_FROM "TYPE *var" "STAILQ_HEAD *head" "STAILQ_ENTRY NAME"
+.Fn STAILQ_FOREACH_FROM_SAFE "TYPE *var" "STAILQ_HEAD *head" "STAILQ_ENTRY NAME" "TYPE *temp_var"
+.Fn STAILQ_FOREACH_SAFE "TYPE *var" "STAILQ_HEAD *head" "STAILQ_ENTRY NAME" "TYPE *temp_var"
+.Fn STAILQ_HEAD "HEADNAME" "TYPE"
+.Fn STAILQ_HEAD_INITIALIZER "STAILQ_HEAD head"
+.Fn STAILQ_INIT "STAILQ_HEAD *head"
+.Fn STAILQ_INSERT_AFTER "STAILQ_HEAD *head" "TYPE *listelm" "TYPE *elm" "STAILQ_ENTRY NAME"
+.Fn STAILQ_INSERT_HEAD "STAILQ_HEAD *head" "TYPE *elm" "STAILQ_ENTRY NAME"
+.Fn STAILQ_INSERT_TAIL "STAILQ_HEAD *head" "TYPE *elm" "STAILQ_ENTRY NAME"
+.Fn STAILQ_LAST "STAILQ_HEAD *head" "TYPE *elm" "STAILQ_ENTRY NAME"
+.Fn STAILQ_NEXT "TYPE *elm" "STAILQ_ENTRY NAME"
+.Fn STAILQ_REMOVE "STAILQ_HEAD *head" "TYPE *elm" "TYPE" "STAILQ_ENTRY NAME"
+.Fn STAILQ_REMOVE_AFTER "STAILQ_HEAD *head" "TYPE *elm" "STAILQ_ENTRY NAME"
+.Fn STAILQ_REMOVE_HEAD "STAILQ_HEAD *head" "STAILQ_ENTRY NAME"
+.Fn STAILQ_REVERSE "STAILQ_HEAD *head" "TYPE" "STAILQ_ENTRY NAME"
+.Fn STAILQ_SPLIT_AFTER "STAILQ_HEAD *head" "TYPE *elm" "STAILQ_HEAD *rest" "STAILQ_ENTRY NAME"
+.Fn STAILQ_SWAP "STAILQ_HEAD *head1" "STAILQ_HEAD *head2" "TYPE"
+.\"
+.Fn LIST_CLASS_ENTRY "CLASSTYPE"
+.Fn LIST_CLASS_HEAD "HEADNAME" "CLASSTYPE"
+.Fn LIST_CONCAT "LIST_HEAD *head1" "LIST_HEAD *head2" "TYPE" "LIST_ENTRY NAME"
+.Fn LIST_EMPTY "LIST_HEAD *head"
+.Fn LIST_EMPTY_ATOMIC "LIST_HEAD *head"
+.Fn LIST_ENTRY "TYPE"
+.Fn LIST_FIRST "LIST_HEAD *head"
+.Fn LIST_FOREACH "TYPE *var" "LIST_HEAD *head" "LIST_ENTRY NAME"
+.Fn LIST_FOREACH_FROM "TYPE *var" "LIST_HEAD *head" "LIST_ENTRY NAME"
+.Fn LIST_FOREACH_FROM_SAFE "TYPE *var" "LIST_HEAD *head" "LIST_ENTRY NAME" "TYPE *temp_var"
+.Fn LIST_FOREACH_SAFE "TYPE *var" "LIST_HEAD *head" "LIST_ENTRY NAME" "TYPE *temp_var"
+.Fn LIST_HEAD "HEADNAME" "TYPE"
+.Fn LIST_HEAD_INITIALIZER "LIST_HEAD head"
+.Fn LIST_INIT "LIST_HEAD *head"
+.Fn LIST_INSERT_AFTER "TYPE *listelm" "TYPE *elm" "LIST_ENTRY NAME"
+.Fn LIST_INSERT_BEFORE "TYPE *listelm" "TYPE *elm" "LIST_ENTRY NAME"
+.Fn LIST_INSERT_HEAD "LIST_HEAD *head" "TYPE *elm" "LIST_ENTRY NAME"
+.Fn LIST_NEXT "TYPE *elm" "LIST_ENTRY NAME"
+.Fn LIST_PREV "TYPE *elm" "LIST_HEAD *head" "TYPE" "LIST_ENTRY NAME"
+.Fn LIST_REMOVE "TYPE *elm" "LIST_ENTRY NAME"
+.Fn LIST_REPLACE "TYPE *elm" "TYPE *new" "LIST_ENTRY NAME"
+.Fn LIST_SPLIT_AFTER "LIST_HEAD *head" "TYPE *elm" "LIST_HEAD *rest" "LIST_ENTRY NAME"
+.Fn LIST_SWAP "LIST_HEAD *head1" "LIST_HEAD *head2" "TYPE" "LIST_ENTRY NAME"
+.\"
+.Fn TAILQ_CLASS_ENTRY "CLASSTYPE"
+.Fn TAILQ_CLASS_HEAD "HEADNAME" "CLASSTYPE"
+.Fn TAILQ_CONCAT "TAILQ_HEAD *head1" "TAILQ_HEAD *head2" "TAILQ_ENTRY NAME"
+.Fn TAILQ_EMPTY "TAILQ_HEAD *head"
+.Fn TAILQ_EMPTY_ATOMIC "TAILQ_HEAD *head"
+.Fn TAILQ_ENTRY "TYPE"
+.Fn TAILQ_FIRST "TAILQ_HEAD *head"
+.Fn TAILQ_FOREACH "TYPE *var" "TAILQ_HEAD *head" "TAILQ_ENTRY NAME"
+.Fn TAILQ_FOREACH_FROM "TYPE *var" "TAILQ_HEAD *head" "TAILQ_ENTRY NAME"
+.Fn TAILQ_FOREACH_FROM_SAFE "TYPE *var" "TAILQ_HEAD *head" "TAILQ_ENTRY NAME" "TYPE *temp_var"
+.Fn TAILQ_FOREACH_REVERSE "TYPE *var" "TAILQ_HEAD *head" "HEADNAME" "TAILQ_ENTRY NAME"
+.Fn TAILQ_FOREACH_REVERSE_FROM "TYPE *var" "TAILQ_HEAD *head" "HEADNAME" "TAILQ_ENTRY NAME"
+.Fn TAILQ_FOREACH_REVERSE_FROM_SAFE "TYPE *var" "TAILQ_HEAD *head" "HEADNAME" "TAILQ_ENTRY NAME" "TYPE *temp_var"
+.Fn TAILQ_FOREACH_REVERSE_SAFE "TYPE *var" "TAILQ_HEAD *head" "HEADNAME" "TAILQ_ENTRY NAME" "TYPE *temp_var"
+.Fn TAILQ_FOREACH_SAFE "TYPE *var" "TAILQ_HEAD *head" "TAILQ_ENTRY NAME" "TYPE *temp_var"
+.Fn TAILQ_HEAD "HEADNAME" "TYPE"
+.Fn TAILQ_HEAD_INITIALIZER "TAILQ_HEAD head"
+.Fn TAILQ_INIT "TAILQ_HEAD *head"
+.Fn TAILQ_INSERT_AFTER "TAILQ_HEAD *head" "TYPE *listelm" "TYPE *elm" "TAILQ_ENTRY NAME"
+.Fn TAILQ_INSERT_BEFORE "TYPE *listelm" "TYPE *elm" "TAILQ_ENTRY NAME"
+.Fn TAILQ_INSERT_HEAD "TAILQ_HEAD *head" "TYPE *elm" "TAILQ_ENTRY NAME"
+.Fn TAILQ_INSERT_TAIL "TAILQ_HEAD *head" "TYPE *elm" "TAILQ_ENTRY NAME"
+.Fn TAILQ_LAST "TAILQ_HEAD *head" "HEADNAME"
+.Fn TAILQ_NEXT "TYPE *elm" "TAILQ_ENTRY NAME"
+.Fn TAILQ_PREV "TYPE *elm" "HEADNAME" "TAILQ_ENTRY NAME"
+.Fn TAILQ_REMOVE "TAILQ_HEAD *head" "TYPE *elm" "TAILQ_ENTRY NAME"
+.Fn TAILQ_REPLACE "TAILQ_HEAD *head" "TYPE *elm" "TYPE *new" "TAILQ_ENTRY NAME"
+.Fn TAILQ_SPLIT_AFTER "TAILQ_HEAD *head" "TYPE *elm" "TAILQ_HEAD *rest" "TAILQ_ENTRY NAME"
+.Fn TAILQ_SWAP "TAILQ_HEAD *head1" "TAILQ_HEAD *head2" "TYPE" "TAILQ_ENTRY NAME"
+.\"
+.Sh DESCRIPTION
+These macros define and operate on four types of data structures which
+can be used in both C and C++ source code:
+.Bl -enum -compact -offset indent
+.It
+Lists
+.It
+Singly-linked lists
+.It
+Singly-linked tail queues
+.It
+Tail queues
+.El
+All four structures support the following functionality:
+.Bl -enum -compact -offset indent
+.It
+Insertion of a new entry at the head of the list.
+.It
+Insertion of a new entry after any element in the list.
+.It
+O(1) removal of an entry from the head of the list.
+.It
+Forward traversal through the list.
+.It
+Splitting a list in two after any element in the list.
+.It
+Swapping the contents of two lists.
+.El
+.Pp
+Singly-linked lists are the simplest of the four data structures
+and support only the above functionality.
+Singly-linked lists are ideal for applications with large datasets
+and few or no removals,
+or for implementing a LIFO queue.
+Singly-linked lists add the following functionality:
+.Bl -enum -compact -offset indent
+.It
+O(n) removal of any entry in the list.
+.It
+O(n) concatenation of two lists.
+.El
+.Pp
+Singly-linked tail queues add the following functionality:
+.Bl -enum -compact -offset indent
+.It
+Entries can be added at the end of a list.
+.It
+O(n) removal of any entry in the list.
+.It
+They may be concatenated.
+.El
+However:
+.Bl -enum -compact -offset indent
+.It
+All list insertions must specify the head of the list.
+.It
+Each head entry requires two pointers rather than one.
+.It
+Code size is about 15% greater and operations run about 20% slower
+than singly-linked lists.
+.El
+.Pp
+Singly-linked tail queues are ideal for applications with large datasets and
+few or no removals,
+or for implementing a FIFO queue.
+.Pp
+All doubly linked types of data structures (lists and tail queues)
+additionally allow:
+.Bl -enum -compact -offset indent
+.It
+Insertion of a new entry before any element in the list.
+.It
+O(1) removal of any entry in the list.
+.El
+However:
+.Bl -enum -compact -offset indent
+.It
+Each element requires two pointers rather than one.
+.It
+Code size and execution time of operations (except for removal) is about
+twice that of the singly-linked data-structures.
+.El
+.Pp
+Linked lists are the simplest of the doubly linked data structures.
+They add the following functionality over the above:
+.Bl -enum -compact -offset indent
+.It
+O(n) concatenation of two lists.
+.It
+They may be traversed backwards.
+.El
+However:
+.Bl -enum -compact -offset indent
+.It
+To traverse backwards, an entry to begin the traversal and the list in
+which it is contained must be specified.
+.El
+.Pp
+Tail queues add the following functionality:
+.Bl -enum -compact -offset indent
+.It
+Entries can be added at the end of a list.
+.It
+They may be traversed backwards, from tail to head.
+.It
+They may be concatenated.
+.El
+However:
+.Bl -enum -compact -offset indent
+.It
+All list insertions and removals must specify the head of the list.
+.It
+Each head entry requires two pointers rather than one.
+.It
+Code size is about 15% greater and operations run about 20% slower
+than singly-linked lists.
+.El
+.Pp
+In the macro definitions,
+.Fa TYPE
+is the name of a user defined structure.
+The structure must contain a field called
+.Fa NAME
+which is of type
+.Li SLIST_ENTRY ,
+.Li STAILQ_ENTRY ,
+.Li LIST_ENTRY ,
+or
+.Li TAILQ_ENTRY .
+In the macro definitions,
+.Fa CLASSTYPE
+is the name of a user defined class.
+The class must contain a field called
+.Fa NAME
+which is of type
+.Li SLIST_CLASS_ENTRY ,
+.Li STAILQ_CLASS_ENTRY ,
+.Li LIST_CLASS_ENTRY ,
+or
+.Li TAILQ_CLASS_ENTRY .
+The argument
+.Fa HEADNAME
+is the name of a user defined structure that must be declared
+using the macros
+.Li SLIST_HEAD ,
+.Li SLIST_CLASS_HEAD ,
+.Li STAILQ_HEAD ,
+.Li STAILQ_CLASS_HEAD ,
+.Li LIST_HEAD ,
+.Li LIST_CLASS_HEAD ,
+.Li TAILQ_HEAD ,
+or
+.Li TAILQ_CLASS_HEAD .
+See the examples below for further explanation of how these
+macros are used.
+.Sh SINGLY-LINKED LISTS
+A singly-linked list is headed by a structure defined by the
+.Nm SLIST_HEAD
+macro.
+This structure contains a single pointer to the first element
+on the list.
+The elements are singly linked for minimum space and pointer manipulation
+overhead at the expense of O(n) removal for arbitrary elements.
+New elements can be added to the list after an existing element or
+at the head of the list.
+An
+.Fa SLIST_HEAD
+structure is declared as follows:
+.Bd -literal -offset indent
+SLIST_HEAD(HEADNAME, TYPE) head;
+.Ed
+.Pp
+where
+.Fa HEADNAME
+is the name of the structure to be defined, and
+.Fa TYPE
+is the type of the elements to be linked into the list.
+A pointer to the head of the list can later be declared as:
+.Bd -literal -offset indent
+struct HEADNAME *headp;
+.Ed
+.Pp
+(The names
+.Li head
+and
+.Li headp
+are user selectable.)
+.Pp
+The macro
+.Nm SLIST_HEAD_INITIALIZER
+evaluates to an initializer for the list
+.Fa head .
+.Pp
+The macro
+.Nm SLIST_CONCAT
+concatenates the list headed by
+.Fa head2
+onto the end of the one headed by
+.Fa head1
+removing all entries from the former.
+Use of this macro should be avoided as it traverses the entirety of the
+.Fa head1
+list.
+A singly-linked tail queue should be used if this macro is needed in
+high-usage code paths or to operate on long lists.
+.Pp
+The macro
+.Nm SLIST_EMPTY
+evaluates to true if there are no elements in the list.
+The
+.Nm SLIST_EMPTY_ATOMIC
+variant has the same behavior, but can be safely used in contexts where it is
+possible that a different thread is concurrently updating the list.
+.Pp
+The macro
+.Nm SLIST_ENTRY
+declares a structure that connects the elements in
+the list.
+.Pp
+The macro
+.Nm SLIST_FIRST
+returns the first element in the list or NULL if the list is empty.
+.Pp
+The macro
+.Nm SLIST_FOREACH
+traverses the list referenced by
+.Fa head
+in the forward direction, assigning each element in
+turn to
+.Fa var .
+.Pp
+The macro
+.Nm SLIST_FOREACH_FROM
+behaves identically to
+.Nm SLIST_FOREACH
+when
+.Fa var
+is NULL, else it treats
+.Fa var
+as a previously found SLIST element and begins the loop at
+.Fa var
+instead of the first element in the SLIST referenced by
+.Fa head .
+.Pp
+The macro
+.Nm SLIST_FOREACH_SAFE
+traverses the list referenced by
+.Fa head
+in the forward direction, assigning each element in
+turn to
+.Fa var .
+However, unlike
+.Fn SLIST_FOREACH
+here it is permitted to both remove
+.Fa var
+as well as free it from within the loop safely without interfering with the
+traversal.
+.Pp
+The macro
+.Nm SLIST_FOREACH_FROM_SAFE
+behaves identically to
+.Nm SLIST_FOREACH_SAFE
+when
+.Fa var
+is NULL, else it treats
+.Fa var
+as a previously found SLIST element and begins the loop at
+.Fa var
+instead of the first element in the SLIST referenced by
+.Fa head .
+.Pp
+The macro
+.Nm SLIST_INIT
+initializes the list referenced by
+.Fa head .
+.Pp
+The macro
+.Nm SLIST_INSERT_HEAD
+inserts the new element
+.Fa elm
+at the head of the list.
+.Pp
+The macro
+.Nm SLIST_INSERT_AFTER
+inserts the new element
+.Fa elm
+after the element
+.Fa listelm .
+.Pp
+The macro
+.Nm SLIST_NEXT
+returns the next element in the list.
+.Pp
+The macro
+.Nm SLIST_REMOVE_AFTER
+removes the element after
+.Fa elm
+from the list.
+Unlike
+.Fa SLIST_REMOVE ,
+this macro does not traverse the entire list.
+.Pp
+The macro
+.Nm SLIST_REMOVE_HEAD
+removes the element
+.Fa elm
+from the head of the list.
+For optimum efficiency,
+elements being removed from the head of the list should explicitly use
+this macro instead of the generic
+.Fa SLIST_REMOVE
+macro.
+.Pp
+The macro
+.Nm SLIST_REMOVE
+removes the element
+.Fa elm
+from the list.
+Use of this macro should be avoided as it traverses the entire list.
+A doubly-linked list should be used if this macro is needed in
+high-usage code paths or to operate on long lists.
+.Pp
+The macro
+.Nm SLIST_SPLIT_AFTER
+splits the list referenced by
+.Fa head ,
+making
+.Fa rest
+reference the list formed by elements after
+.Fa elm
+in
+.Fa head .
+.Pp
+The macro
+.Nm SLIST_SWAP
+swaps the contents of
+.Fa head1
+and
+.Fa head2 .
+.Sh SINGLY-LINKED LIST EXAMPLE
+.Bd -literal
+SLIST_HEAD(slisthead, entry) head =
+    SLIST_HEAD_INITIALIZER(head);
+struct slisthead *headp;		/* Singly-linked List head. */
+struct entry {
+	...
+	SLIST_ENTRY(entry) entries;	/* Singly-linked List. */
+	...
+} *n1, *n2, *n3, *np;
+
+SLIST_INIT(&head);			/* Initialize the list. */
+
+n1 = malloc(sizeof(struct entry));	/* Insert at the head. */
+SLIST_INSERT_HEAD(&head, n1, entries);
+
+n2 = malloc(sizeof(struct entry));	/* Insert after. */
+SLIST_INSERT_AFTER(n1, n2, entries);
+
+SLIST_REMOVE(&head, n2, entry, entries);/* Deletion. */
+free(n2);
+
+n3 = SLIST_FIRST(&head);
+SLIST_REMOVE_HEAD(&head, entries);	/* Deletion from the head. */
+free(n3);
+					/* Forward traversal. */
+SLIST_FOREACH(np, &head, entries)
+	np-> ...
+					/* Safe forward traversal. */
+SLIST_FOREACH_SAFE(np, &head, entries, np_temp) {
+	np->do_stuff();
+	...
+	SLIST_REMOVE(&head, np, entry, entries);
+	free(np);
+}
+
+while (!SLIST_EMPTY(&head)) {		/* List Deletion. */
+	n1 = SLIST_FIRST(&head);
+	SLIST_REMOVE_HEAD(&head, entries);
+	free(n1);
+}
+.Ed
+.Sh SINGLY-LINKED TAIL QUEUES
+A singly-linked tail queue is headed by a structure defined by the
+.Nm STAILQ_HEAD
+macro.
+This structure contains a pair of pointers,
+one to the first element in the tail queue and the other to
+the last element in the tail queue.
+The elements are singly linked for minimum space and pointer
+manipulation overhead at the expense of O(n) removal for arbitrary
+elements.
+New elements can be added to the tail queue after an existing element,
+at the head of the tail queue, or at the end of the tail queue.
+A
+.Fa STAILQ_HEAD
+structure is declared as follows:
+.Bd -literal -offset indent
+STAILQ_HEAD(HEADNAME, TYPE) head;
+.Ed
+.Pp
+where
+.Li HEADNAME
+is the name of the structure to be defined, and
+.Li TYPE
+is the type of the elements to be linked into the tail queue.
+A pointer to the head of the tail queue can later be declared as:
+.Bd -literal -offset indent
+struct HEADNAME *headp;
+.Ed
+.Pp
+(The names
+.Li head
+and
+.Li headp
+are user selectable.)
+.Pp
+The macro
+.Nm STAILQ_HEAD_INITIALIZER
+evaluates to an initializer for the tail queue
+.Fa head .
+.Pp
+The macro
+.Nm STAILQ_CONCAT
+concatenates the tail queue headed by
+.Fa head2
+onto the end of the one headed by
+.Fa head1
+removing all entries from the former.
+.Pp
+The macro
+.Nm STAILQ_EMPTY
+evaluates to true if there are no items on the tail queue.
+The
+.Nm STAILQ_EMPTY_ATOMIC
+variant has the same behavior, but can be safely used in contexts where it is
+possible that a different thread is concurrently updating the queue.
+.Pp
+The macro
+.Nm STAILQ_ENTRY
+declares a structure that connects the elements in
+the tail queue.
+.Pp
+The macro
+.Nm STAILQ_FIRST
+returns the first item on the tail queue or NULL if the tail queue
+is empty.
+.Pp
+The macro
+.Nm STAILQ_FOREACH
+traverses the tail queue referenced by
+.Fa head
+in the forward direction, assigning each element
+in turn to
+.Fa var .
+.Pp
+The macro
+.Nm STAILQ_FOREACH_FROM
+behaves identically to
+.Nm STAILQ_FOREACH
+when
+.Fa var
+is NULL, else it treats
+.Fa var
+as a previously found STAILQ element and begins the loop at
+.Fa var
+instead of the first element in the STAILQ referenced by
+.Fa head .
+.Pp
+The macro
+.Nm STAILQ_FOREACH_SAFE
+traverses the tail queue referenced by
+.Fa head
+in the forward direction, assigning each element
+in turn to
+.Fa var .
+However, unlike
+.Fn STAILQ_FOREACH
+here it is permitted to both remove
+.Fa var
+as well as free it from within the loop safely without interfering with the
+traversal.
+.Pp
+The macro
+.Nm STAILQ_FOREACH_FROM_SAFE
+behaves identically to
+.Nm STAILQ_FOREACH_SAFE
+when
+.Fa var
+is NULL, else it treats
+.Fa var
+as a previously found STAILQ element and begins the loop at
+.Fa var
+instead of the first element in the STAILQ referenced by
+.Fa head .
+.Pp
+The macro
+.Nm STAILQ_INIT
+initializes the tail queue referenced by
+.Fa head .
+.Pp
+The macro
+.Nm STAILQ_INSERT_HEAD
+inserts the new element
+.Fa elm
+at the head of the tail queue.
+.Pp
+The macro
+.Nm STAILQ_INSERT_TAIL
+inserts the new element
+.Fa elm
+at the end of the tail queue.
+.Pp
+The macro
+.Nm STAILQ_INSERT_AFTER
+inserts the new element
+.Fa elm
+after the element
+.Fa listelm .
+.Pp
+The macro
+.Nm STAILQ_LAST
+returns the last item on the tail queue.
+If the tail queue is empty the return value is
+.Dv NULL .
+.Pp
+The macro
+.Nm STAILQ_NEXT
+returns the next item on the tail queue, or NULL this item is the last.
+.Pp
+The macro
+.Nm STAILQ_REMOVE_AFTER
+removes the element after
+.Fa elm
+from the tail queue.
+Unlike
+.Fa STAILQ_REMOVE ,
+this macro does not traverse the entire tail queue.
+.Pp
+The macro
+.Nm STAILQ_REMOVE_HEAD
+removes the element at the head of the tail queue.
+For optimum efficiency,
+elements being removed from the head of the tail queue should
+use this macro explicitly rather than the generic
+.Fa STAILQ_REMOVE
+macro.
+.Pp
+The macro
+.Nm STAILQ_REMOVE
+removes the element
+.Fa elm
+from the tail queue.
+Use of this macro should be avoided as it traverses the entire list.
+A doubly-linked tail queue should be used if this macro is needed in
+high-usage code paths or to operate on long tail queues.
+.Pp
+The macro
+.Nm STAILQ_REVERSE
+reverses the queue in place.
+.Pp
+The macro
+.Nm STAILQ_SPLIT_AFTER
+splits the tail queue referenced by
+.Fa head ,
+making
+.Fa rest
+reference the tail queue formed by elements after
+.Fa elm
+in
+.Fa head .
+.Pp
+The macro
+.Nm STAILQ_SWAP
+swaps the contents of
+.Fa head1
+and
+.Fa head2 .
+.Sh SINGLY-LINKED TAIL QUEUE EXAMPLE
+.Bd -literal
+STAILQ_HEAD(stailhead, entry) head =
+    STAILQ_HEAD_INITIALIZER(head);
+struct stailhead *headp;		/* Singly-linked tail queue head. */
+struct entry {
+	...
+	STAILQ_ENTRY(entry) entries;	/* Tail queue. */
+	...
+} *n1, *n2, *n3, *np;
+
+STAILQ_INIT(&head);			/* Initialize the queue. */
+
+n1 = malloc(sizeof(struct entry));	/* Insert at the head. */
+STAILQ_INSERT_HEAD(&head, n1, entries);
+
+n1 = malloc(sizeof(struct entry));	/* Insert at the tail. */
+STAILQ_INSERT_TAIL(&head, n1, entries);
+
+n2 = malloc(sizeof(struct entry));	/* Insert after. */
+STAILQ_INSERT_AFTER(&head, n1, n2, entries);
+					/* Deletion. */
+STAILQ_REMOVE(&head, n2, entry, entries);
+free(n2);
+					/* Deletion from the head. */
+n3 = STAILQ_FIRST(&head);
+STAILQ_REMOVE_HEAD(&head, entries);
+free(n3);
+					/* Forward traversal. */
+STAILQ_FOREACH(np, &head, entries)
+	np-> ...
+					/* Safe forward traversal. */
+STAILQ_FOREACH_SAFE(np, &head, entries, np_temp) {
+	np->do_stuff();
+	...
+	STAILQ_REMOVE(&head, np, entry, entries);
+	free(np);
+}
+					/* TailQ Deletion. */
+while (!STAILQ_EMPTY(&head)) {
+	n1 = STAILQ_FIRST(&head);
+	STAILQ_REMOVE_HEAD(&head, entries);
+	free(n1);
+}
+					/* Faster TailQ Deletion. */
+n1 = STAILQ_FIRST(&head);
+while (n1 != NULL) {
+	n2 = STAILQ_NEXT(n1, entries);
+	free(n1);
+	n1 = n2;
+}
+STAILQ_INIT(&head);
+.Ed
+.Sh LISTS
+A list is headed by a structure defined by the
+.Nm LIST_HEAD
+macro.
+This structure contains a single pointer to the first element
+on the list.
+The elements are doubly linked so that an arbitrary element can be
+removed without traversing the list.
+New elements can be added to the list after an existing element,
+before an existing element, or at the head of the list.
+A
+.Fa LIST_HEAD
+structure is declared as follows:
+.Bd -literal -offset indent
+LIST_HEAD(HEADNAME, TYPE) head;
+.Ed
+.Pp
+where
+.Fa HEADNAME
+is the name of the structure to be defined, and
+.Fa TYPE
+is the type of the elements to be linked into the list.
+A pointer to the head of the list can later be declared as:
+.Bd -literal -offset indent
+struct HEADNAME *headp;
+.Ed
+.Pp
+(The names
+.Li head
+and
+.Li headp
+are user selectable.)
+.Pp
+The macro
+.Nm LIST_HEAD_INITIALIZER
+evaluates to an initializer for the list
+.Fa head .
+.Pp
+The macro
+.Nm LIST_CONCAT
+concatenates the list headed by
+.Fa head2
+onto the end of the one headed by
+.Fa head1
+removing all entries from the former.
+Use of this macro should be avoided as it traverses the entirety of the
+.Fa head1
+list.
+A tail queue should be used if this macro is needed in
+high-usage code paths or to operate on long lists.
+.Pp
+The macro
+.Nm LIST_EMPTY
+evaluates to true if there are no elements in the list.
+The
+.Nm LIST_EMPTY_ATOMIC
+variant has the same behavior, but can be safely used in contexts where it is
+possible that a different thread is concurrently updating the list.
+.Pp
+The macro
+.Nm LIST_ENTRY
+declares a structure that connects the elements in
+the list.
+.Pp
+The macro
+.Nm LIST_FIRST
+returns the first element in the list or NULL if the list
+is empty.
+.Pp
+The macro
+.Nm LIST_FOREACH
+traverses the list referenced by
+.Fa head
+in the forward direction, assigning each element in turn to
+.Fa var .
+.Pp
+The macro
+.Nm LIST_FOREACH_FROM
+behaves identically to
+.Nm LIST_FOREACH
+when
+.Fa var
+is NULL, else it treats
+.Fa var
+as a previously found LIST element and begins the loop at
+.Fa var
+instead of the first element in the LIST referenced by
+.Fa head .
+.Pp
+The macro
+.Nm LIST_FOREACH_SAFE
+traverses the list referenced by
+.Fa head
+in the forward direction, assigning each element in turn to
+.Fa var .
+However, unlike
+.Fn LIST_FOREACH
+here it is permitted to both remove
+.Fa var
+as well as free it from within the loop safely without interfering with the
+traversal.
+.Pp
+The macro
+.Nm LIST_FOREACH_FROM_SAFE
+behaves identically to
+.Nm LIST_FOREACH_SAFE
+when
+.Fa var
+is NULL, else it treats
+.Fa var
+as a previously found LIST element and begins the loop at
+.Fa var
+instead of the first element in the LIST referenced by
+.Fa head .
+.Pp
+The macro
+.Nm LIST_INIT
+initializes the list referenced by
+.Fa head .
+.Pp
+The macro
+.Nm LIST_INSERT_HEAD
+inserts the new element
+.Fa elm
+at the head of the list.
+.Pp
+The macro
+.Nm LIST_INSERT_AFTER
+inserts the new element
+.Fa elm
+after the element
+.Fa listelm .
+.Pp
+The macro
+.Nm LIST_INSERT_BEFORE
+inserts the new element
+.Fa elm
+before the element
+.Fa listelm .
+.Pp
+The macro
+.Nm LIST_NEXT
+returns the next element in the list, or NULL if this is the last.
+.Pp
+The macro
+.Nm LIST_PREV
+returns the previous element in the list, or NULL if this is the first.
+List
+.Fa head
+must contain element
+.Fa elm .
+.Pp
+The macro
+.Nm LIST_REMOVE
+removes the element
+.Fa elm
+from the list.
+.Pp
+The macro
+.Fn LIST_REPLACE
+replaces the element
+.Fa elm
+with
+.Fa new
+in the list.
+The element
+.Fa new
+must not already be on a list.
+.Pp
+The macro
+.Nm LIST_SPLIT_AFTER
+splits the list referenced by
+.Fa head ,
+making
+.Fa rest
+reference the list formed by elements after
+.Fa elm
+in
+.Fa head .
+.Pp
+The macro
+.Nm LIST_SWAP
+swaps the contents of
+.Fa head1
+and
+.Fa head2 .
+.Sh LIST EXAMPLE
+.Bd -literal
+LIST_HEAD(listhead, entry) head =
+    LIST_HEAD_INITIALIZER(head);
+struct listhead *headp;			/* List head. */
+struct entry {
+	...
+	LIST_ENTRY(entry) entries;	/* List. */
+	...
+} *n1, *n2, *n3, *np, *np_temp;
+
+LIST_INIT(&head);			/* Initialize the list. */
+
+n1 = malloc(sizeof(struct entry));	/* Insert at the head. */
+LIST_INSERT_HEAD(&head, n1, entries);
+
+n2 = malloc(sizeof(struct entry));	/* Insert after. */
+LIST_INSERT_AFTER(n1, n2, entries);
+
+n3 = malloc(sizeof(struct entry));	/* Insert before. */
+LIST_INSERT_BEFORE(n2, n3, entries);
+
+LIST_REMOVE(n2, entries);		/* Deletion. */
+free(n2);
+					/* Forward traversal. */
+LIST_FOREACH(np, &head, entries)
+	np-> ...
+
+					/* Safe forward traversal. */
+LIST_FOREACH_SAFE(np, &head, entries, np_temp) {
+	np->do_stuff();
+	...
+	LIST_REMOVE(np, entries);
+	free(np);
+}
+
+while (!LIST_EMPTY(&head)) {		/* List Deletion. */
+	n1 = LIST_FIRST(&head);
+	LIST_REMOVE(n1, entries);
+	free(n1);
+}
+
+n1 = LIST_FIRST(&head);			/* Faster List Deletion. */
+while (n1 != NULL) {
+	n2 = LIST_NEXT(n1, entries);
+	free(n1);
+	n1 = n2;
+}
+LIST_INIT(&head);
+.Ed
+.Sh TAIL QUEUES
+A tail queue is headed by a structure defined by the
+.Nm TAILQ_HEAD
+macro.
+This structure contains a pair of pointers,
+one to the first element in the tail queue and the other to
+the last element in the tail queue.
+The elements are doubly linked so that an arbitrary element can be
+removed without traversing the tail queue.
+New elements can be added to the tail queue after an existing element,
+before an existing element, at the head of the tail queue,
+or at the end of the tail queue.
+A
+.Fa TAILQ_HEAD
+structure is declared as follows:
+.Bd -literal -offset indent
+TAILQ_HEAD(HEADNAME, TYPE) head;
+.Ed
+.Pp
+where
+.Li HEADNAME
+is the name of the structure to be defined, and
+.Li TYPE
+is the type of the elements to be linked into the tail queue.
+A pointer to the head of the tail queue can later be declared as:
+.Bd -literal -offset indent
+struct HEADNAME *headp;
+.Ed
+.Pp
+(The names
+.Li head
+and
+.Li headp
+are user selectable.)
+.Pp
+The macro
+.Nm TAILQ_HEAD_INITIALIZER
+evaluates to an initializer for the tail queue
+.Fa head .
+.Pp
+The macro
+.Nm TAILQ_CONCAT
+concatenates the tail queue headed by
+.Fa head2
+onto the end of the one headed by
+.Fa head1
+removing all entries from the former.
+.Pp
+The macro
+.Nm TAILQ_EMPTY
+evaluates to true if there are no items on the tail queue.
+The
+.Nm TAILQ_EMPTY_ATOMIC
+variant has the same behavior, but can be safely used in contexts where it is
+possible that a different thread is concurrently updating the queue.
+.Pp
+The macro
+.Nm TAILQ_ENTRY
+declares a structure that connects the elements in
+the tail queue.
+.Pp
+The macro
+.Nm TAILQ_FIRST
+returns the first item on the tail queue or NULL if the tail queue
+is empty.
+.Pp
+The macro
+.Nm TAILQ_FOREACH
+traverses the tail queue referenced by
+.Fa head
+in the forward direction, assigning each element in turn to
+.Fa var .
+.Fa var
+is set to
+.Dv NULL
+if the loop completes normally, or if there were no elements.
+.Pp
+The macro
+.Nm TAILQ_FOREACH_FROM
+behaves identically to
+.Nm TAILQ_FOREACH
+when
+.Fa var
+is NULL, else it treats
+.Fa var
+as a previously found TAILQ element and begins the loop at
+.Fa var
+instead of the first element in the TAILQ referenced by
+.Fa head .
+.Pp
+The macro
+.Nm TAILQ_FOREACH_REVERSE
+traverses the tail queue referenced by
+.Fa head
+in the reverse direction, assigning each element in turn to
+.Fa var .
+.Pp
+The macro
+.Nm TAILQ_FOREACH_REVERSE_FROM
+behaves identically to
+.Nm TAILQ_FOREACH_REVERSE
+when
+.Fa var
+is NULL, else it treats
+.Fa var
+as a previously found TAILQ element and begins the reverse loop at
+.Fa var
+instead of the last element in the TAILQ referenced by
+.Fa head .
+.Pp
+The macros
+.Nm TAILQ_FOREACH_SAFE
+and
+.Nm TAILQ_FOREACH_REVERSE_SAFE
+traverse the list referenced by
+.Fa head
+in the forward or reverse direction respectively,
+assigning each element in turn to
+.Fa var .
+However, unlike their unsafe counterparts,
+.Nm TAILQ_FOREACH
+and
+.Nm TAILQ_FOREACH_REVERSE
+permit to both remove
+.Fa var
+as well as free it from within the loop safely without interfering with the
+traversal.
+.Pp
+The macro
+.Nm TAILQ_FOREACH_FROM_SAFE
+behaves identically to
+.Nm TAILQ_FOREACH_SAFE
+when
+.Fa var
+is NULL, else it treats
+.Fa var
+as a previously found TAILQ element and begins the loop at
+.Fa var
+instead of the first element in the TAILQ referenced by
+.Fa head .
+.Pp
+The macro
+.Nm TAILQ_FOREACH_REVERSE_FROM_SAFE
+behaves identically to
+.Nm TAILQ_FOREACH_REVERSE_SAFE
+when
+.Fa var
+is NULL, else it treats
+.Fa var
+as a previously found TAILQ element and begins the reverse loop at
+.Fa var
+instead of the last element in the TAILQ referenced by
+.Fa head .
+.Pp
+The macro
+.Nm TAILQ_INIT
+initializes the tail queue referenced by
+.Fa head .
+.Pp
+The macro
+.Nm TAILQ_INSERT_HEAD
+inserts the new element
+.Fa elm
+at the head of the tail queue.
+.Pp
+The macro
+.Nm TAILQ_INSERT_TAIL
+inserts the new element
+.Fa elm
+at the end of the tail queue.
+.Pp
+The macro
+.Nm TAILQ_INSERT_AFTER
+inserts the new element
+.Fa elm
+after the element
+.Fa listelm .
+.Pp
+The macro
+.Nm TAILQ_INSERT_BEFORE
+inserts the new element
+.Fa elm
+before the element
+.Fa listelm .
+.Pp
+The macro
+.Nm TAILQ_LAST
+returns the last item on the tail queue.
+If the tail queue is empty the return value is
+.Dv NULL .
+.Pp
+The macro
+.Nm TAILQ_NEXT
+returns the next item on the tail queue, or NULL if this item is the last.
+.Pp
+The macro
+.Nm TAILQ_PREV
+returns the previous item on the tail queue, or NULL if this item
+is the first.
+.Pp
+The macro
+.Nm TAILQ_REMOVE
+removes the element
+.Fa elm
+from the tail queue.
+.Pp
+The macro
+.Fn TAILQ_REPLACE
+replaces the element
+.Fa elm
+with
+.Fa new
+in the tail queue.
+The element
+.Fa new
+must not already be on a list.
+.Pp
+The macro
+.Nm TAILQ_SPLIT_AFTER
+splits the tail queue referenced by
+.Fa head ,
+making
+.Fa rest
+reference the tail queue formed by elements after
+.Fa elm
+in
+.Fa head .
+.Pp
+The macro
+.Nm TAILQ_SWAP
+swaps the contents of
+.Fa head1
+and
+.Fa head2 .
+.Sh TAIL QUEUE EXAMPLE
+.Bd -literal
+TAILQ_HEAD(tailhead, entry) head =
+    TAILQ_HEAD_INITIALIZER(head);
+struct tailhead *headp;			/* Tail queue head. */
+struct entry {
+	...
+	TAILQ_ENTRY(entry) entries;	/* Tail queue. */
+	...
+} *n1, *n2, *n3, *n4, *np;
+
+TAILQ_INIT(&head);			/* Initialize the queue. */
+
+n1 = malloc(sizeof(struct entry));	/* Insert at the head. */
+TAILQ_INSERT_HEAD(&head, n1, entries);
+
+n1 = malloc(sizeof(struct entry));	/* Insert at the tail. */
+TAILQ_INSERT_TAIL(&head, n1, entries);
+
+n2 = malloc(sizeof(struct entry));	/* Insert after. */
+TAILQ_INSERT_AFTER(&head, n1, n2, entries);
+
+n3 = malloc(sizeof(struct entry));	/* Insert before. */
+TAILQ_INSERT_BEFORE(n2, n3, entries);
+
+TAILQ_REMOVE(&head, n2, entries);	/* Deletion. */
+free(n2);
+
+n4 = malloc(sizeof(struct entry));	/* Replacement. */
+TAILQ_REPLACE(&head, n3, n4, entries);
+free(n3);
+					/* Forward traversal. */
+TAILQ_FOREACH(np, &head, entries)
+	np-> ...
+					/* Safe forward traversal. */
+TAILQ_FOREACH_SAFE(np, &head, entries, np_temp) {
+	np->do_stuff();
+	...
+	TAILQ_REMOVE(&head, np, entries);
+	free(np);
+}
+					/* Reverse traversal. */
+TAILQ_FOREACH_REVERSE(np, &head, tailhead, entries)
+	np-> ...
+					/* TailQ Deletion. */
+while (!TAILQ_EMPTY(&head)) {
+	n1 = TAILQ_FIRST(&head);
+	TAILQ_REMOVE(&head, n1, entries);
+	free(n1);
+}
+					/* Faster TailQ Deletion. */
+n1 = TAILQ_FIRST(&head);
+while (n1 != NULL) {
+	n2 = TAILQ_NEXT(n1, entries);
+	free(n1);
+	n1 = n2;
+}
+TAILQ_INIT(&head);
+.Ed
+.Sh DIAGNOSTICS
+.Nm queue(3)
+provides several diagnostic and debugging facilities.
+.Pp
+Check code that performs basic integrity and API conformance checks is
+automatically inserted when using queue macros in the kernel if compiling it
+with
+.Va INVARIANTS .
+One can request insertion or elision of check code by respectively defining one
+of the macros
+.Va QUEUE_MACRO_DEBUG_ASSERTIONS
+or
+.Va QUEUE_MACRO_NO_DEBUG_ASSERTIONS
+before first inclusion of
+.In sys/queue.h .
+When check code encounters an anomaly, it panics the kernel or aborts the
+program.
+To this end, in the kernel or in
+.Va _STANDALONE
+builds, it by default calls
+.Fn panic ,
+while in userland builds it prints the diagnostic message on
+.Dv stderr
+and then calls
+.Fn abort .
+These behaviors can be overridden by defining a custom
+.Fn QMD_PANIC
+macro before first inclusion of
+.In sys/queue.h .
+The diagnostic messages automatically include the source file, line and function
+where the failing check occurred.
+This behavior can be overridden by defining a custom
+.Fn QMD_ASSERT
+macro before first inclusion of
+.In sys/queue.h .
+.Pp
+The
+.Fn SLIST_REMOVE_PREVPTR
+macro is available to aid debugging:
+.Bl -hang -offset indent
+.It Fn SLIST_REMOVE_PREVPTR "TYPE **prev" "TYPE *elm" "SLIST_ENTRY NAME"
+.Pp
+Removes element
+.Fa elm ,
+which must directly follow the element whose
+.Va &SLIST_NEXT()
+is
+.Fa prev ,
+from the list.
+This macro may insert, under conditions detailed above, check code that
+validates that
+.Fa elm
+indeed follows
+.Fa prev
+in the list
+.Po
+through the
+.Fn QMD_SLIST_CHECK_PREVPTR
+macro
+.Pc .
+.El
+.Pp
+When debugging, it can be useful to trace queue changes.
+To enable tracing, define the macro
+.Va QUEUE_MACRO_DEBUG_TRACE .
+Note that, at the moment, only macros for regular tail queues have been
+instrumented.
+.Pp
+It can also be useful to trash pointers that have been unlinked from a queue,
+to detect use after removal.
+To enable pointer trashing, define the macro
+.Va QUEUE_MACRO_DEBUG_TRASH
+at compile time.
+Note that, at the moment, only a limited number of macros have been
+instrumented.
+The macro
+.Fn QMD_IS_TRASHED "void *ptr"
+returns true if
+.Fa ptr
+has been trashed by the
+.Va QUEUE_MACRO_DEBUG_TRASH
+option.
+.Sh SEE ALSO
+.Xr arb 3 ,
+.Xr tree 3
+.Sh HISTORY
+The
+.Nm queue
+functions first appeared in
+.Bx 4.4 .
diff --git a/static/freebsd/man3/sigevent.3 b/static/freebsd/man3/sigevent.3
new file mode 100644
index 00000000..731b3658
--- /dev/null
+++ b/static/freebsd/man3/sigevent.3
@@ -0,0 +1,129 @@
+.\" -*- nroff -*-
+.\"
+.\" Copyright (c) 2016 John H. Baldwin <jhb@FreeBSD.org>
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd February 25, 2020
+.Dt SIGEVENT 3
+.Os
+.Sh NAME
+.Nm sigevent
+.Nd "asynchronous event notification"
+.Sh SYNOPSIS
+.In signal.h
+.Sh DESCRIPTION
+Some operations permit threads to request asynchronous notification of events
+via a
+.Vt struct sigevent
+structure.
+This structure contains several fields that describe the requested notification:
+.Bl -column ".Vt void (*)(union sigval)" ".Va sigev_notify_kevent_flags"
+.It Sy Type Ta Sy Member Ta Sy Description
+.It Vt int Ta sigev_notify Ta notification method
+.It Vt int Ta sigev_signo Ta signal number
+.It Vt union sigval Ta sigev_value Ta signal value
+.It Vt int Ta sigev_notify_kqueue Ta
+.Xr kqueue 2
+file descriptor
+.It Vt unsigned short Ta sigev_notify_kevent_flags Ta kevent flags
+.It Vt lwpid_t Ta sigev_notify_thread_id Ta LWP ID
+.It Vt void (*)(union sigval) Ta sigev_notify_function Ta
+callback function pointer
+.It Vt pthread_attr_t * Ta sigev_notify_attributes Ta
+callback thread attributes
+.El
+.Pp
+The
+.Va sigev_notify
+field specifies the notification method used when the event triggers:
+.Bl -tag -width ".Dv SIGEV_THREAD_ID"
+.It Dv SIGEV_NONE
+No notification is sent.
+.It Dv SIGEV_SIGNAL
+The signal
+.Va sigev_signo
+is queued as a real-time signal to the calling process.
+The value stored in
+.Va sigev_value
+will be present in the
+.Va si_value
+of the
+.Vt siginfo_t
+structure of the queued signal.
+.It Dv SIGEV_THREAD
+The notification function in
+.Va sigev_notify_function
+is called in a separate thread context.
+The thread is created with the attributes specified in
+.Va *sigev_notify_attributes .
+The value stored in
+.Va sigev_value
+is passed as the sole argument to
+.Va sigev_notify_function .
+If
+.Va sigev_notify_attributes
+is
+.Dv NULL ,
+the thread is created with default attributes.
+.It Dv SIGEV_KEVENT
+A new kevent is posted to the kqueue
+.Va sigev_notify_kqueue .
+The
+.Va udata
+member of the kevent structure contains the value stored in
+.Va sigev_value .
+The meaning of other fields in the kevent are specific to the type of triggered
+event.
+.It Dv SIGEV_THREAD_ID
+The signal
+.Va sigev_signo
+is queued to the thread whose LWP ID is
+.Va sigev_notify_thread_id .
+The value stored in
+.Va sigev_value
+will be present in the
+.Va si_value
+of the
+.Vt siginfo_t
+structure of the queued signal.
+.El
+.Sh NOTES
+Note that programs wishing to use
+.Dv SIGEV_THREAD
+notifications must link against the
+.Lb librt .
+.Sh SEE ALSO
+.Xr aio_read 2 ,
+.Xr mq_notify 2 ,
+.Xr timer_create 2 ,
+.Xr siginfo 3
+.Sh STANDARDS
+The
+.Vt struct sigevent
+type conforms to
+.St -p1003.1-2004 .
+.Sh HISTORY
+The
+.Va sigevent
+structure first appeared in
+.Fx 3.3 .
diff --git a/static/freebsd/man3/siginfo.3 b/static/freebsd/man3/siginfo.3
new file mode 100644
index 00000000..59e3ecf8
--- /dev/null
+++ b/static/freebsd/man3/siginfo.3
@@ -0,0 +1,348 @@
+.\" Copyright (c) 2005 David Xu <davidxu@FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" 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(s), this list of conditions and the following disclaimer as
+.\"    the first lines of this file unmodified other than the possible
+.\"    addition of one or more copyright notices.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice(s), this list of conditions and the following disclaimer in
+.\"    the documentation and/or other materials provided with the
+.\"    distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``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 COPYRIGHT HOLDER(S) 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.
+.\"
+.Dd February 17, 2021
+.Dt SIGINFO 3
+.Os
+.Sh NAME
+.Nm siginfo
+.Nd "signal generation information"
+.Sh SYNOPSIS
+.In signal.h
+.Sh DESCRIPTION
+A process may request signal information when it is catching a signal.
+The information specifies why the system generated that signal.
+To request signal information in a signal handler, the user can set
+.Dv SA_SIGINFO
+in
+.Va sa_flags
+before
+.Xr sigaction 2
+is called,
+otherwise the user can use
+.Xr sigwaitinfo 2
+and
+.Xr sigtimedwait 2
+to get signal information.
+In either case, the system returns the information in a structure of type
+.Vt siginfo_t ,
+which includes the following information:
+.Bl -column ".Vt union signal" ".Va si_overrun"
+.It Sy Type Ta Sy Member Ta Sy Description
+.It Vt int Ta Va si_signo Ta
+signal number
+.It Vt int Ta Va si_errno Ta
+error number
+.It Vt int Ta Va si_code Ta
+signal code
+.It Vt union sigval Ta Va si_value Ta
+signal value
+.It Vt pid_t Ta Va si_pid Ta
+sending process ID
+.It Vt uid_t Ta Va si_uid Ta
+sending process's real user ID
+.It Vt void Ta Va *si_addr Ta
+virtual address
+.It Vt int Ta Va si_status Ta
+exit value or signal
+.It Vt long Ta Va si_band Ta
+band event for
+.Dv SIGPOLL
+.It Vt int Ta Va si_trapno Ta
+machine trap code
+.It Vt int Ta Va si_timerid Ta
+.Tn POSIX
+timer ID
+.It Vt int Ta Va si_overrun Ta
+.Tn POSIX
+timer overrun count
+.It Vt int Ta Va si_mqd Ta
+.Tn POSIX
+message queue ID
+.It Vt int Ta Va si_syscall Ta
+system-call number for system calls blocked by Capsicum
+.El
+.Pp
+The
+.Va si_signo
+member contains the signal number.
+.Pp
+The
+.Va si_errno
+member contains an error number defined in the file
+.In errno.h .
+.Pp
+The
+.Va si_code
+member contains a code which describes the cause of the signal.
+The macros specified in the
+.Sy Code
+column of the following table are defined
+for use as values of
+.Va si_code
+that are signal-specific or non-signal-specific reasons why the signal was
+generated:
+.Bl -column ".Dv SIGPOLL" ".Dv CLD_CONTINUED"
+.It Sy Signal Ta Sy Code Ta Sy Reason
+.It Dv SIGILL Ta Dv ILL_ILLOPC Ta
+illegal opcode
+.It Ta Dv ILL_ILLOPN Ta
+illegal operand
+.It Ta Dv ILL_ILLADR Ta
+illegal addressing mode
+.It Ta Dv ILL_ILLTRP Ta
+illegal trap
+.It Ta Dv ILL_PRVOPC Ta
+illegal privileged opcode
+.It Ta Dv ILL_PRVREG Ta
+illegal privileged register
+.It Ta Dv ILL_COPROC Ta
+coprocessor error
+.It Ta Dv ILL_BADSTK Ta
+internal stack error
+.It Dv SIGFPE Ta Dv FPE_INTDIV Ta
+integer divide by zero
+.It Ta Dv FPE_INTOVF Ta
+integer overflow
+.It Ta Dv FPE_FLTDIV Ta
+floating-point divide by zero
+.It Ta Dv FPE_FLTOVF Ta
+floating-point overflow
+.It Ta Dv FPE_FLTUND Ta
+floating-point underflow
+.It Ta Dv FPE_FLTRES Ta
+floating-point inexact result
+.It Ta Dv FPE_FLTINV Ta
+invalid floating-point operation
+.It Ta Dv FPE_FLTSUB Ta
+subscript out of range
+.It Dv SIGSEGV Ta Dv SEGV_MAPERR Ta
+address not mapped to object
+.It Ta Dv SEGV_ACCERR Ta
+invalid permissions for mapped object
+.It Dv SIGBUS Ta Dv BUS_ADRALN Ta
+invalid address alignment
+.It Ta Dv BUS_ADRERR Ta
+nonexistent physical address
+.It Ta Dv BUS_OBJERR Ta
+object-specific hardware error
+.It Ta Dv BUS_OOMERR Ta
+cannot alloc a page to map at fault
+.It Dv SIGTRAP Ta Dv TRAP_BRKPT Ta
+process breakpoint
+.It Ta Dv TRAP_TRACE Ta
+process trace trap
+.It Ta Dv TRAP_DTRACE Ta
+DTrace induced trap
+.It Ta Dv TRAP_CAP Ta
+capabilities protective trap
+.It Dv SIGCHLD Ta Dv CLD_EXITED Ta
+child has exited
+.It Ta Dv CLD_KILLED Ta
+child has terminated abnormally and did not create a core file
+.It Ta Dv CLD_DUMPED Ta
+child has terminated abnormally and created a core file
+.It Ta Dv CLD_TRAPPED Ta
+traced child has trapped
+.It Ta Dv CLD_STOPPED Ta
+child has stopped
+.It Ta Dv CLD_CONTINUED Ta
+stopped child has continued
+.It Dv SIGPOLL Ta Dv POLL_IN Ta
+data input available
+.It Ta Dv POLL_OUT Ta
+output buffers available
+.It Ta Dv POLL_MSG Ta
+input message available
+.It Ta Dv POLL_ERR Ta
+I/O error
+.It Ta Dv POLL_PRI Ta
+high priority input available
+.It Ta Dv POLL_HUP Ta
+device disconnected
+.It Any Ta Dv SI_NOINFO Ta
+Only the
+.Va si_signo
+member is meaningful; the value of all other members is unspecified.
+.It Ta Dv SI_USER Ta
+signal sent by
+.Xr kill 2
+.It Ta Dv SI_QUEUE Ta
+signal sent by
+.Xr sigqueue 2
+.It Ta Dv SI_TIMER Ta
+signal generated by expiration of a timer set by
+.Xr timer_settime 2
+.It Ta Dv SI_ASYNCIO Ta
+signal generated by completion of an asynchronous I/O request
+.It Ta Dv SI_MESGQ Ta
+signal generated by arrival of a message on an empty message queue
+.It Ta Dv SI_KERNEL Ta
+signal generated by miscellaneous parts of the kernel
+.It Ta Dv SI_LWP Ta
+signal sent by
+.Xr pthread_kill 3
+.El
+.Pp
+For synchronous signals,
+.Va si_addr
+is generally set to the address of the faulting instruction.
+However, synchronous signals raised by a faulting memory access such as
+.Dv SIGSEGV
+and
+.Dv SIGBUS
+may report the address of the faulting memory access (if available) in
+.Va si_addr
+instead.
+Additionally
+.Dv SIGTRAP
+raised by a hardware watchpoint exception may report the data address that
+triggered the watchpoint in
+.Va si_addr .
+.Pp
+Synchronous signals set
+.Va si_trapno
+to a machine-dependent trap number.
+.Pp
+In addition, the following signal-specific information is available:
+.Bl -column ".Dv SIGPOLL" ".Dv CLD_CONTINUED"
+.It Sy Signal Ta Sy Member Ta Sy Value
+.It Dv SIGCHLD Ta Va si_pid Ta
+child process ID
+.It Ta Va si_status Ta
+exit value or signal; if
+.Va si_code
+is equal to
+.Dv CLD_EXITED ,
+then it is equal to the exit value of the child process, otherwise,
+it is equal to a signal that caused the child process to change state.
+.It Ta Va si_uid Ta "real user ID of the process that sent the signal"
+.It Dv SIGPOLL Ta Va si_band Ta "band event for"
+.Dv POLL_IN , POLL_OUT ,
+or
+.Dv POLL_MSG
+.El
+.Pp
+Finally, the following code-specific information is available:
+.Bl -column ".Dv SI_ASYNCIO" ".Va si_overrun"
+.It Sy Code Ta Sy Member Ta Sy Value
+.It Dv SI_USER Ta Va si_pid Ta
+the process ID that sent the signal
+.It Ta Va si_uid Ta
+real user ID of the process that sent the signal
+.It Dv SI_QUEUE Ta Va si_value Ta
+the value passed to
+.Xr sigqueue 2
+system call
+.It Ta Va si_pid Ta
+the process ID that sent the signal
+.It Ta Va si_uid Ta
+real user ID of the process that sent the signal
+.It Dv SI_TIMER Ta Va si_value Ta
+the value passed to
+.Xr timer_create 2
+system call
+.It Ta Va si_timerid Ta
+the timer ID returned by
+.Xr timer_create 2
+system call
+.It Ta Va si_overrun Ta
+timer overrun count corresponding to the signal
+.It Ta Va si_errno Ta
+If timer overrun will be
+.Brq Dv DELAYTIMER_MAX ,
+an error code defined in
+.In errno.h
+is set
+.It Dv SI_ASYNCIO Ta Va si_value Ta
+the value passed to aio system calls
+.It Dv SI_MESGQ Ta Va si_value Ta
+the value passed to
+.Xr mq_notify 2
+system call
+.It Ta Va si_mqd Ta
+the ID of the message queue which generated the signal
+.It Dv SI_LWP Ta Va si_pid Ta
+the process ID that sent the signal
+.It Ta Va si_uid Ta
+real user ID of the process that sent the signal
+.El
+.Sh NOTES
+Currently, the kernel never generates the
+.Dv SIGPOLL
+signal.
+.Dv SIGCHLD
+signal is queued when a process changed its status or exited.
+.Tn POSIX
+Realtime Extensions like aio, timer, and message queue also queue
+signals.
+Signals with code
+.Dv SI_USER ,
+.Dv SI_KERNEL
+or
+.Dv SI_LWP
+are only queued if there are sufficient resources;
+otherwise,
+.Dv SI_NOINFO
+results.
+For some hardware architectures, the exact value of
+.Va si_addr
+might not be available.
+.Sh SEE ALSO
+.Xr aio_read 2 ,
+.Xr kill 2 ,
+.Xr mq_notify 2 ,
+.Xr sigaction 2 ,
+.Xr sigqueue 2 ,
+.Xr sigwaitinfo 2 ,
+.Xr timer_create 2 ,
+.Xr timer_settime 2 ,
+.Xr waitpid 2 ,
+.Xr pthread_kill 3
+.Sh STANDARDS
+The
+.Vt siginfo_t
+type conforms to
+.St -p1003.1-2004 .
+.Sh HISTORY
+Full support for
+.Tn POSIX
+signal information first appeared in
+.Fx 7.0 .
+The codes
+.Dv SI_USER
+and
+.Dv SI_KERNEL
+can be generated as of
+.Fx 8.1 .
+The code
+.Dv SI_LWP
+can be generated as of
+.Fx 9.0 .
+.Sh AUTHORS
+This manual page was written by
+.An David Xu Aq Mt davidxu@FreeBSD.org .
diff --git a/static/freebsd/man3/snl.3 b/static/freebsd/man3/snl.3
new file mode 100644
index 00000000..04bae466
--- /dev/null
+++ b/static/freebsd/man3/snl.3
@@ -0,0 +1,309 @@
+.\"
+.\" Copyright (C) 2022 Alexander Chernikov <melifaro@FreeBSD.org>.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.Dd December 16, 2022
+.Dt SNL 3
+.Os
+.Sh NAME
+.Nm snl_init ,
+.Nm snl_free ,
+.Nm snl_read_message ,
+.Nm snl_send ,
+.Nm snl_get_seq ,
+.Nm snl_allocz ,
+.Nm snl_clear_lb ,
+.Nm snl_parse_nlmsg ,
+.Nm snl_parse_header ,
+.Nm snl_parse_attrs ,
+.Nm snl_parse_attrs_raw ,
+.Nm snl_attr_get_flag ,
+.Nm snl_attr_get_ip ,
+.Nm snl_attr_get_uint16 ,
+.Nm snl_attr_get_uint32 ,
+.Nm snl_attr_get_string ,
+.Nm snl_attr_get_stringn ,
+.Nm snl_attr_get_nla ,
+.Nm snl_field_get_uint8 ,
+.Nm snl_field_get_uint16 ,
+.Nm snl_field_get_uint32
+.Nd "simple netlink library"
+.Sh SYNOPSIS
+.In netlink/netlink_snl.h
+.In netlink/netlink_snl_route.h
+.Ft "bool"
+.Fn snl_init "struct snl_state *ss" "int netlink_family"
+.Fn snl_free "struct snl_state *ss"
+.Ft "struct nlmsghdr *"
+.Fn snl_read_message "struct snl_state *ss"
+.Ft "bool"
+.Fn snl_send "struct snl_state *ss" "void *data" "int sz"
+.Ft "uint32_t"
+.Fn snl_get_seq "struct snl_state *ss"
+.Ft "void *"
+.Fn snl_allocz "struct snl_state *ss" "int len"
+.Fn snl_clear_lb "struct snl_state *ss"
+.Ft "bool"
+.Fn snl_parse_nlmsg "struct snl_state *ss" "struct nlmsghdr *hdr" "const struct snl_hdr_parser *ps" "void *target"
+.Ft "bool"
+.Fn snl_parse_header "struct snl_state *ss" "void *hdr" "int len" "const struct snl_hdr_parser *ps" "int pslen" "void *target"
+.Ft "bool"
+.Fn snl_parse_attrs "struct snl_state *ss" "struct nlmsghdr *hdr" "int hdrlen" "const struct snl_attr_parser *ps" "int pslen" "void *target"
+.Ft "bool"
+.Fn snl_parse_attrs_raw "struct snl_state *ss" "struct nlattr *nla_head" "int len" "const struct snl_attr_parser *ps" "int pslen" "void *target"
+.Ft "bool"
+.Fn snl_attr_get_flag "struct snl_state *ss" "struct nlattr *nla" "void *target"
+.Ft "bool"
+.Fn snl_attr_get_uint8 "struct snl_state *ss" "struct nlattr *nla" "void *target"
+.Ft "bool"
+.Fn snl_attr_get_uint16 "struct snl_state *ss" "struct nlattr *nla" "void *target"
+.Ft "bool"
+.Fn snl_attr_get_uint32 "struct snl_state *ss" "struct nlattr *nla" "void *target"
+.Ft "bool"
+.Fn snl_attr_get_uint64 "struct snl_state *ss" "struct nlattr *nla" "void *target"
+.Ft "bool"
+.Fn snl_attr_get_string "struct snl_state *ss" "struct nlattr *nla" "void *target"
+.Ft "bool"
+.Fn snl_attr_get_stringn "struct snl_state *ss" "struct nlattr *nla" "void *target"
+.Ft "bool"
+.Fn snl_attr_get_nla "struct snl_state *ss" "struct nlattr *nla" "void *target"
+.Ft "bool"
+.Fn snl_attr_get_ip "struct snl_state *ss" "struct nlattr *nla" "void *target"
+.Ft "bool"
+.Fn snl_attr_get_ipvia "struct snl_state *ss" "struct nlattr *nla" "void *target"
+.Sh DESCRIPTION
+The
+.Xr snl 3
+library provides an easy way of sending and receiving Netlink messages,
+taking care of serialisation and deserialisation.
+.Ss INITIALISATION
+Call
+.Fn snl_init
+with a pointer to the
+.Dv struct snl_state
+and the desired Netlink family to initialise the library instance.
+To free the library instance, call
+.Fn snl_free .
+.Pp
+The library functions are NOT multithread-safe.
+If multithreading is desired, consider initializing an instance
+per thread.
+.Ss MEMORY ALLOCATION
+The library uses pre-allocated extendable memory buffers to handle message parsing.
+The typical usage pattern is to allocate the necessary data structures during the
+message parsing or writing process via
+.Fn snl_allocz
+and free all allocated data at once using
+.Fn snl_clear_lb
+after handling the message.
+.Ss COMPOSING AND SENDING MESSAGES
+The library does not currently offer any wrappers for writing netlink messages.
+Simple request messages can be composed by filling in all needed fields directly.
+Example for constructing an interface dump request:
+.Bd -literal
+	struct {
+		struct nlmsghdr hdr;
+		struct ifinfomsg ifmsg;
+	} msg = {
+		.hdr.nlmsg_type = RTM_GETLINK,
+		.hdr.nlmsg_flags = NLM_F_DUMP | NLM_F_REQUEST,
+		.hdr.nlmsg_seq = snl_get_seq(ss),
+	};
+	msg.hdr.nlmsg_len = sizeof(msg);
+.Ed
+.Fn snl_get_seq
+can be used to generate a unique message number.
+To send the resulting message,
+.Fn snl_send
+can be used.
+.Ss RECEIVING AND PARSING MESSAGES
+To receive a message, use
+.Fn snl_read_message .
+Currently, this call is blocking.
+.Pp
+The library provides an easy way to convert the message to the pre-defined C
+structure.
+For each message type, one needs to define rules, converting the protocol header
+fields and the desired attributes to the specified structure.
+It can be accomplished by using message parsers.
+Each message parser consists of an array of attribute getters and an array of
+header field getters.
+The former array needs to be sorted by the attribute type.
+There is a
+.Fn SNL_VERIFY_PARSERS
+macro to check if the order is correct.
+.Fn SNL_DECLARE_PARSER "parser_name" "family header type" "struct snl_field_parser[]" "struct snl_attr_parser[]"
+can be used to create a new parser.
+.Fn SNL_DECLARE_ATTR_PARSER "parser_name" "struct snl_field_parser[]"
+can be used to create an attribute-only message parser.
+.Pp
+Each attribute getter needs to be embedded in the following structure:
+.Bd -literal
+typedef bool snl_parse_attr_f(struct snl_state *ss, struct nlattr *attr, const void *arg, void *target);
+struct snl_attr_parser {
+	uint16_t		type;	/* Attribute type */
+	uint16_t		off;	/* field offset in the target structure */
+	snl_parse_attr_f	*cb;	/* getter function to call */
+	const void		*arg;	/* getter function custom argument */
+};
+.Ed
+The generic attribute getter has the following signature:
+.Ft "bool"
+.Fn snl_attr_get_<type> "struct snl_state *ss" "struct nlattr *nla" "const void *arg" "void *target" .
+nla contains the pointer of the attribute to use as the datasource.
+The target field is the pointer to the field in the target structure.
+It is up to the getter to know the type of the target field.
+The getter must check the input attribute and return
+false if the attribute is not formed correctly.
+Otherwise, the getter fetches the attribute value and stores it in the target,
+then returns true.
+It is possible to use
+.Fn snl_allocz
+to create the desired data structure .
+A number of predefined getters for the common data types exist.
+.Fn snl_attr_get_flag
+converts a flag-type attribute to an uint8_t value of 1 or 0, depending on the
+attribute presence.
+.Fn snl_attr_get_uint8
+stores a uint8_t type attribute into the uint8_t target field.
+.Fn snl_attr_get_uint16
+stores a uint16_t type attribute into the uint16_t target field.
+.Fn snl_attr_get_uint32
+stores a uint32_t type attribute into the uint32_t target field.
+.Fn snl_attr_get_uint64
+stores a uint64_t type attribute into the uint64_t target field.
+.Fn snl_attr_get_ip
+and
+.Fn snl_attr_get_ipvia
+stores a pointer to the sockaddr structure with the IPv4/IPv6 address contained
+in the attribute.
+Sockaddr is allocated using
+.Fn snl_allocz .
+.Fn snl_attr_get_string
+stores a pointer to the NULL-terminated string.
+The string itself is allocated using
+.Fn snl_allocz .
+.Fn snl_attr_get_nla
+stores a pointer to the specified attribute.
+.Fn snl_attr_get_stringn
+stores a pointer to the non-NULL-terminated string.
+.Pp
+Similarly, each family header getter needs to be embedded in the following structure:
+.Bd -literal
+typedef void snl_parse_field_f(struct snl_state *ss, void *hdr, void *target);
+struct snl_field_parser {
+	uint16_t		off_in;	/* field offset in the input structure */
+	uint16_t                off_out;/* field offset in the target structure */
+	snl_parse_field_f       *cb;	/* getter function to call */
+};
+.Ed
+The generic field getter has the following signature:
+.Ft "void"
+snl_field_get_<type> "struct snl_state *ss" "void *src" "void *target" .
+A number of pre-defined getters for the common data types exist.
+.Fn "snl_field_get_uint8"
+fetches an uint8_t value and stores it in the target.
+.Fn "snl_field_get_uint16"
+fetches an uint8_t value and stores it in the target.
+.Fn "snl_field_get_uint32"
+fetches an uint32_t value and stores it in the target.
+.Sh EXAMPLES
+The following example demonstrates how to list all system interfaces
+using netlink.
+.Bd -literal
+#include <stdio.h>
+
+#include <netlink/netlink.h>
+#include <netlink/netlink_route.h>
+#include "netlink/netlink_snl.h"
+#include "netlink/netlink_snl_route.h"
+
+struct nl_parsed_link {
+	uint32_t		ifi_index;
+	uint32_t		ifla_mtu;
+	char			*ifla_ifname;
+};
+
+#define	_IN(_field)	offsetof(struct ifinfomsg, _field)
+#define	_OUT(_field)	offsetof(struct nl_parsed_link, _field)
+static const struct snl_attr_parser ap_link[] = {
+	{ .type = IFLA_IFNAME, .off = _OUT(ifla_ifname), .cb = snl_attr_get_string },
+	{ .type = IFLA_MTU, .off = _OUT(ifla_mtu), .cb = snl_attr_get_uint32 },
+};
+static const struct snl_field_parser fp_link[] = {
+	{.off_in = _IN(ifi_index), .off_out = _OUT(ifi_index), .cb = snl_field_get_uint32 },
+};
+#undef _IN
+#undef _OUT
+SNL_DECLARE_PARSER(link_parser, struct ifinfomsg, fp_link, ap_link);
+
+
+int
+main(int ac, char *argv[])
+{
+	struct snl_state ss;
+
+	if (!snl_init(&ss, NETLINK_ROUTE))
+		return (1);
+
+	struct {
+		struct nlmsghdr hdr;
+		struct ifinfomsg ifmsg;
+	} msg = {
+		.hdr.nlmsg_type = RTM_GETLINK,
+		.hdr.nlmsg_flags = NLM_F_DUMP | NLM_F_REQUEST,
+		.hdr.nlmsg_seq = snl_get_seq(&ss),
+	};
+	msg.hdr.nlmsg_len = sizeof(msg);
+
+	if (!snl_send(&ss, &msg, sizeof(msg))) {
+		snl_free(&ss);
+		return (1);
+	}
+
+	struct nlmsghdr *hdr;
+	while ((hdr = snl_read_message(&ss)) != NULL && hdr->nlmsg_type != NLMSG_DONE) {
+		if (hdr->nlmsg_seq != msg.hdr.nlmsg_seq)
+			break;
+
+		struct nl_parsed_link link = {};
+		if (!snl_parse_nlmsg(&ss, hdr, &link_parser, &link))
+			continue;
+		printf("Link#%u %s mtu %u\en", link.ifi_index, link.ifla_ifname, link.ifla_mtu);
+	}
+
+	return (0);
+}
+.Ed
+.Sh SEE ALSO
+.Xr genetlink 4 ,
+.Xr netlink 4 ,
+and
+.Xr rtnetlink 4
+.Sh HISTORY
+The
+.Dv SNL
+library appeared in
+.Fx 13.2 .
+.Sh AUTHORS
+This library was implemented by
+.An Alexander Chernikov Aq Mt melifaro@FreeBSD.org .
diff --git a/static/freebsd/man3/stats.3 b/static/freebsd/man3/stats.3
new file mode 100644
index 00000000..7fe1fa61
--- /dev/null
+++ b/static/freebsd/man3/stats.3
@@ -0,0 +1,966 @@
+.\"
+.\" Copyright (c) 2016-2018 Netflix, Inc.
+.\" All rights reserved.
+.\"
+.\" 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,
+.\"    without modification, immediately at the beginning of the file.
+.\" 2. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.Dd December 2, 2019
+.Dt STATS 3
+.Os
+.Sh NAME
+.Nm stats
+.Nd statistics gathering
+.Sh LIBRARY
+.Lb libstats
+.Sh SYNOPSIS
+.In sys/arb.h
+.In sys/qmath.h
+.In sys/stats.h
+.Ss Stats Blob Template Management Functions
+.Ft int
+.Fo stats_tpl_alloc
+.Fa "const char *name"
+.Fa "uint32_t flags"
+.Fc
+.Ft int
+.Fo stats_tpl_fetch_allocid
+.Fa "const char *name"
+.Fa "uint32_t hash"
+.Fc
+.Ft int
+.Fo stats_tpl_fetch
+.Fa "int tpl_id"
+.Fa "struct statsblob_tpl **tpl"
+.Fc
+.Ft int
+.Fo stats_tpl_id2name
+.Fa "uint32_t tpl_id"
+.Fa "char *buf"
+.Fa "size_t len"
+.Fc
+.Ft int
+.Fo stats_tpl_sample_rates
+.Fa "SYSCTL_HANDLER_ARGS"
+.Fc
+.Ft int
+.Fo stats_tpl_sample_rollthedice
+.Fa "struct stats_tpl_sample_rate *rates"
+.Fa "int nrates"
+.Fa "void *seed_bytes"
+.Fa "size_t seed_len"
+.Fc
+.Ft struct voistatspec
+.Fo STATS_VSS_SUM
+.Fc
+.Ft struct voistatspec
+.Fo STATS_VSS_MAX
+.Fc
+.Ft struct voistatspec
+.Fo STATS_VSS_MIN
+.Fc
+.Ft struct voistatspec
+.Fo STATS_VSS_CRHIST<32|64>_LIN
+.Fa "lb"
+.Fa "ub"
+.Fa "stepinc"
+.Fa "vsdflags"
+.Fc
+.Ft struct voistatspec
+.Fo STATS_VSS_CRHIST<32|64>_EXP
+.Fa "lb"
+.Fa "ub"
+.Fa "stepbase"
+.Fa "stepexp"
+.Fa "vsdflags"
+.Fc
+.Ft struct voistatspec
+.Fo "STATS_VSS_CRHIST<32|64>_LINEXP"
+.Fa "lb"
+.Fa "ub"
+.Fa "nlinsteps"
+.Fa "stepbase"
+.Fa "vsdflags"
+.Fc
+.Ft struct voistatspec
+.Fo "STATS_VSS_CRHIST<32|64>_USR"
+.Fa Sy "HBKTS" Ns Pq Sy "CRBKT" Ns ( Em "lb" ) , "..." ,
+.Fa "vsdflags"
+.Fc
+.Ft struct voistatspec
+.Fo "STATS_VSS_DRHIST<32|64>_USR"
+.Fa Sy "HBKTS" Ns Pq Sy "DRBKT" Ns ( Em "lb" , "ub" ) , "..." ,
+.Fa "vsdflags"
+.Fc
+.Ft struct voistatspec
+.Fo "STATS_VSS_DVHIST<32|64>_USR"
+.Fa Sy "HBKTS" Ns Pq Sy "DVBKT" Ns ( Em "val" ) , "..." ,
+.Fa "vsdflags"
+.Fc
+.Ft struct voistatspec
+.Fo STATS_VSS_TDGSTCLUST<32|64>
+.Fa "nctroids"
+.Fa "prec"
+.Fc
+.Ft int
+.Fo stats_tpl_add_voistats
+.Fa "uint32_t tpl_id"
+.Fa "int32_t voi_id"
+.Fa "const char *voi_name"
+.Fa "enum vsd_dtype voi_dtype"
+.Fa "uint32_t nvss"
+.Fa "struct voistatspec *vss"
+.Fa "uint32_t flags"
+.Fc
+.Ss Stats Blob Data Gathering Functions
+.Ft int
+.Fo stats_voi_update_<abs|rel>_<dtype>
+.Fa "struct statsblob *sb"
+.Fa "int32_t voi_id"
+.Fa "<dtype> voival"
+.Fc
+.Ss Stats Blob Utility Functions
+.Ft struct statsblob *
+.Fo stats_blob_alloc
+.Fa "uint32_t tpl_id"
+.Fa "uint32_t flags"
+.Fc
+.Ft int
+.Fo stats_blob_init
+.Fa "struct statsblob *sb"
+.Fa "uint32_t tpl_id"
+.Fa "uint32_t flags"
+.Fc
+.Ft int
+.Fo stats_blob_clone
+.Fa "struct statsblob **dst"
+.Fa "size_t dstmaxsz"
+.Fa "struct statsblob *src"
+.Fa "uint32_t flags"
+.Fc
+.Ft void
+.Fo stats_blob_destroy
+.Fa "struct statsblob *sb"
+.Fc
+.Ft int
+.Fo stats_voistat_fetch_dptr
+.Fa "struct statsblob *sb"
+.Fa "int32_t voi_id"
+.Fa "enum voi_stype stype"
+.Fa "enum vsd_dtype *retdtype"
+.Fa "struct voistatdata **retvsd"
+.Fa "size_t *retvsdsz"
+.Fc
+.Ft int
+.Fo stats_voistat_fetch_<dtype>
+.Fa "struct statsblob *sb"
+.Fa "int32_t voi_id"
+.Fa "enum voi_stype stype"
+.Fa "<dtype> *ret"
+.Fc
+.Ft int
+.Fo stats_blob_snapshot
+.Fa "struct statsblob **dst"
+.Fa "size_t dstmaxsz"
+.Fa "struct statsblob *src"
+.Fa "uint32_t flags"
+.Fc
+.Ft int
+.Fo stats_blob_tostr
+.Fa "struct statsblob *sb"
+.Fa "struct sbuf *buf"
+.Fa "enum sb_str_fmt fmt"
+.Fa "uint32_t flags"
+.Fc
+.Ft int
+.Fo stats_voistatdata_tostr
+.Fa "const struct voistatdata *vsd"
+.Fa "enum vsd_dtype dtype"
+.Fa "enum sb_str_fmt fmt"
+.Fa "struct sbuf *buf"
+.Fa "int objdump"
+.Fc
+.Ft typedef int
+.Fn "\*(lp*stats_blob_visitcb_t\*(rp" "struct sb_visit *sbv" "void *usrctx"
+.Ft int
+.Fo stats_blob_visit
+.Fa "struct statsblob *sb"
+.Fa "stats_blob_visitcb_t func"
+.Fa "void *usrctx"
+.Fc
+.Sh DESCRIPTION
+The
+.Nm
+framework facilitates real-time kernel and user space statistics gathering.
+The framework is built around the
+.Dq statsblob ,
+an object embedded within a contiguous memory allocation that is mostly opaque
+to consumers and stores all required state.
+A
+.Dq statsblob
+object can itself be embedded within other objects either directly or indirectly
+using a pointer.
+.Pp
+Objects or subsystems for which statistics are to be gathered are initialized
+from a template
+.Dq statsblob ,
+which acts as the blueprint for an arbitrary set of
+Variables Of Interest (VOIs) and their associated statistics.
+Each template defines a schema plus associated metadata, which are kept separate
+to minimize the memory footprint of blobs.
+.Pp
+Data gathering hook functions added at appropriate locations within the code
+base of interest feed VOI data into the framework for processing.
+.Pp
+Each
+.Dq statsblob ,
+consists of a
+.Vt struct statsblob
+header and opaque internal blob structure per the following diagram:
+.Bd -literal -offset indent
+---------------------------------------------------------
+|   struct  |		       uint8_t			|
+| statsblob |		      opaque[]			|
+---------------------------------------------------------
+.Ed
+.Pp
+The publicly visible 8-byte header is defined as:
+.Bd -literal -offset indent
+struct statsblob {
+	uint8_t		abi;
+	uint8_t		endian;
+	uint16_t	flags;
+	uint16_t	maxsz;
+	uint16_t	cursz;
+	uint8_t		opaque[];
+};
+.Ed
+.Pp
+.Va abi
+specifies which API version the blob's
+.Va opaque
+internals conform to
+.Pq Dv STATS_ABI_V1 is the only version currently defined .
+.Va endian
+specifies the endianness of the blob's fields
+.Po
+.Dv SB_LE
+for little endian,
+.Dv SB_BE
+for big endian, or
+.Dv SB_UE
+for unknown endianness
+.Pc .
+.Va cursz
+specifies the size of the blob, while
+.Va maxsz
+specifies the size of the underlying memory allocation in which the
+blob is embedded.
+Both
+.Va cursz
+and
+.Va maxsz
+default to units of bytes, unless a flag is set in
+.Va flags
+that dictates otherwise.
+.Pp
+Templates are constructed by associating arbitrary VOI IDs with a set of
+statistics, where each statistic is specified using a
+.Vt struct voistatspec
+per the definition below:
+.Bd -literal -offset indent
+struct voistatspec {
+	vss_hlpr_fn		hlpr;
+	struct vss_hlpr_info	*hlprinfo;
+	struct voistatdata	*iv;
+	size_t			vsdsz;
+	uint32_t		flags;
+	enum vsd_dtype		vs_dtype : 8;
+	enum voi_stype		stype : 8;
+};
+.Ed
+.Pp
+It is generally expected that consumers will not work with
+.Vt struct voistatspec
+directly, and instead use the
+.Fn STATS_VSS_*
+helper macros.
+.Pp
+The
+.Nm
+framework offers the following statistics for association with VOIs:
+.Bl -tag -width ".Dv VS_STYPE_TDGST"
+.It Dv VS_STYPE_SUM
+The sum of VOI values.
+.It Dv VS_STYPE_MAX
+The maximum VOI value.
+.It Dv VS_STYPE_MIN
+The minimum VOI value.
+.It Dv VS_STYPE_HIST
+A static bucket histogram of VOI values, including a count of
+.Dq out-of-band/bucket
+values which did not match any bucket.
+Histograms can be specified as
+.Dq Em C Ns ontinuous Em R Ns ange
+.Pq CRHIST ,
+.Dq Em D Ns iscrete Em R Ns ange
+.Pq DRHIST
+or
+.Dq Em D Ns iscrete Em V Ns alue
+.Pq DVHIST ,
+with 32 or 64 bit bucket counters, depending on the VOI semantics.
+.It Dv VS_STYPE_TDGST
+A dynamic bucket histogram of VOI values based on the t-digest method
+.Po refer to the t-digest paper in the
+.Sx SEE ALSO
+section below
+.Pc .
+.El
+.Pp
+A
+.Dq visitor software design pattern Ns
+-like scheme is employed to facilitate iterating over a blob's data without
+concern for the blob's structure.
+The data provided to visitor callback functions is encapsulated in
+.Vt struct sb_visit
+per the definition below:
+.Bd -literal -offset indent
+struct sb_visit {
+	struct voistatdata	*vs_data;
+	uint32_t		tplhash;
+	uint32_t		flags;
+	int16_t			voi_id;
+	int16_t			vs_dsz;
+	enum vsd_dtype		voi_dtype : 8;
+	enum vsd_dtype		vs_dtype : 8;
+	int8_t			vs_stype;
+	uint16_t		vs_errs;
+};
+.Ed
+.Pp
+The
+.Fn stats_tpl_sample_rates
+and
+.Fn stats_tpl_sample_rollthedice
+functions utilize
+.Vt struct stats_tpl_sample_rate
+to encapsulate per-template sample rate information per the definition below:
+.Bd -literal -offset indent
+struct stats_tpl_sample_rate {
+	int32_t		tpl_slot_id;
+	uint32_t	tpl_sample_pct;
+};
+.Ed
+.Pp
+The
+.Va tpl_slot_id
+member holds the template's slot ID obtained from
+.Fn stats_tpl_alloc
+or
+.Fn stats_tpl_fetch_allocid .
+The
+.Va tpl_sample_pct
+member holds the template's sample rate as an integer percentage in the range
+[0,100].
+.Pp
+The
+.Vt stats_tpl_sr_cb_t
+conformant function pointer that is required as the
+.Fa arg1
+of
+.Fn stats_tpl_sample_rates
+is defined as:
+.Bd -literal -offset indent
+enum stats_tpl_sr_cb_action {
+	TPL_SR_UNLOCKED_GET,
+	TPL_SR_RLOCKED_GET,
+	TPL_SR_RUNLOCK,
+	TPL_SR_PUT
+};
+typedef int (*stats_tpl_sr_cb_t)(enum stats_tpl_sr_cb_action action,
+    struct stats_tpl_sample_rate **rates, int *nrates, void *ctx);
+.Ed
+.Pp
+It is required that a conformant function:
+.Bl -dash
+.It
+Return an appropriate
+.Xr errno 2
+on error, otherwise 0.
+.It
+When called with
+.Qq action == TPL_SR_*_GET ,
+return the subsystem's rates list ptr and count, locked or unlocked as
+requested.
+.It
+When called with
+.Qq action == TPL_SR_RUNLOCK ,
+unlock the subsystem's rates list ptr and count.
+Pair with a prior
+.Qq action == TPL_SR_RLOCKED_GET
+call.
+.It
+When called with
+.Qq action == TPL_SR_PUT ,
+update the subsystem's rates list ptr and count to the sysctl processed values
+and return the inactive list details in
+.Fa rates
+and
+.Fa nrates
+for garbage collection by
+.Fn stats_tpl_sample_rates .
+.El
+.Pp
+Where templates need to be referenced via textual means, for example via a MIB
+variable, the following string based template spec formats can be used:
+.Bl -enum
+.It
+.Qq <tplname> Ns
+:<tplhash>
+.Ns , for example
+.Qq TCP_DEFAULT Ns
+:1731235399
+.It
+.Qq <tplname>
+.Ns , for example
+.Qq TCP_DEFAULT
+.It
+:<tplhash>
+.Ns , for example
+:1731235399
+.El
+.Pp
+The first form is the normative spec format generated by the framework, while
+the second and third forms are convenience formats primarily for user input.
+The use of inverted commas around the template name is optional.
+.Ss MIB Variables
+The in-kernel
+.Nm
+framework exposes the following framework-specific variables in the
+.Va kern.stats
+branch of the
+.Xr sysctl 3
+MIB.
+.Bl -tag -width "templates"
+.It templates
+Read-only CSV list of registered templates in normative template spec form.
+.El
+.Ss Template Management Functions
+The
+.Fn stats_tpl_alloc
+function allocates a new template with the specified unique name and returns its
+runtime-stable template slot ID for use with other API functions.
+The
+.Fa flags
+argument is currently unused.
+.Pp
+The
+.Fn stats_tpl_fetch_allocid
+function returns the runtime-stable template slot ID of any registered template
+matching the specified name and hash.
+.Pp
+The
+.Fn stats_tpl_fetch
+function returns the pointer to the registered template object at the specified
+template slot ID.
+.Pp
+The
+.Fn stats_tpl_id2name
+function returns the name of the registered template object at the specified
+template slot ID.
+.Pp
+The
+.Fn stats_tpl_sample_rates
+function provides a generic handler for template sample rates management and
+reporting via
+.Xr sysctl 3
+MIB variables.
+Subsystems can use this function to create a subsystem-specific
+.Xr SYSCTL_PROC 9
+MIB variable that manages and reports subsystem-specific template sampling
+rates.
+Subsystems must supply a
+.Vt stats_tpl_sr_cb_t
+conformant function pointer as the sysctl's
+.Fa arg1 ,
+which is a callback used to interact with the subsystem's stats template sample
+rates list.
+Subsystems can optionally specify the sysctl's
+.Fa arg2
+as non-zero, which causes a zero-initialized allocation of arg2-sized contextual
+memory to be heap-allocated and passed in to all subsystem callbacks made during
+the operation of
+.Fn stats_tpl_sample_rates .
+.Pp
+The
+.Fn stats_tpl_sample_rollthedice
+function makes a weighted random template selection from the supplied array of
+template sampling rates.
+The cumulative percentage of all sampling rates should not exceed 100.
+If no seed is supplied, a PRNG is used to generate a true random number so that
+every selection is independent.
+If a seed is supplied, selection will be made randomly across different seeds, but
+deterministically given the same seed.
+.Pp
+The
+.Fn stats_tpl_add_voistats
+function is used to add a VOI and associated set of statistics to the registered
+template object at the specified template slot ID.
+The set of statistics is passed as an array of
+.Vt struct voistatspec
+which can be initialized using the
+.Fn STATS_VSS_*
+helper macros or manually for non-standard use cases.
+For static
+.Fa vss
+arrays, the
+.Fa nvss
+count of array elements can be determined by passing
+.Fa vss
+to the
+.Fn NVSS
+macro.
+The
+.Dv SB_VOI_RELUPDATE
+flag can be passed to configure the VOI for use with
+.Fn stats_voi_update_rel_<dtype> ,
+which entails maintaining an extra 8 bytes of state in the blob at each update.
+.Ss Data Gathering Functions
+The
+.Fn stats_voi_update_abs_<dtype>
+and
+.Fn stats_voi_update_rel_<dtype>
+functions both update all the statistics associated with the VOI identified by
+.Fa voi_id .
+The
+.Dq abs
+call uses
+.Fa voival
+as an absolute value, whereas the
+.Dq rel
+call uses
+.Fa voival
+as a value relative to that of the previous update function call, by adding it
+to the previous value and using the result for the update.
+Relative updates are only possible for VOIs that were added to the template with
+the
+.Dv SB_VOI_RELUPDATE
+flag specified to
+.Fn stats_tpl_add_voistats .
+.Ss Utility Functions
+The
+.Fn stats_blob_alloc
+function allocates and initializes a new blob based on the registered template
+object at the specified template slot ID.
+.Pp
+The
+.Fn stats_blob_init
+function initializes a new blob in an existing memory allocation based on the
+registered template object at the specified template slot ID.
+.Pp
+The
+.Fn stats_blob_clone
+function duplicates the
+.Fa src
+blob into
+.Fa dst ,
+leaving only the
+.Va maxsz
+field of
+.Fa dst
+untouched.
+The
+.Dv SB_CLONE_ALLOCDST
+flag can be passed to instruct the function to allocate a new blob of
+appropriate size into which to clone
+.Fa src ,
+storing the new pointer in
+.Fa *dst .
+The
+.Dv SB_CLONE_USRDSTNOFAULT
+or
+.Dv SB_CLONE_USRDST
+flags can be set to respectively signal that
+.Xr copyout_nofault 9
+or
+.Xr copyout 9
+should be used because
+.Fa *dst
+is a user space address.
+.Pp
+The
+.Fn stats_blob_snapshot
+function calls
+.Fn stats_blob_clone
+to obtain a copy of
+.Fa src
+and then performs any additional functions required to produce a coherent
+blob snapshot.
+The flags interpreted by
+.Fn stats_blob_clone
+also apply to
+.Fn stats_blob_snapshot .
+Additionally, the
+.Dv SB_CLONE_RSTSRC
+flag can be used to effect a reset of the
+.Fa src
+blob's statistics after a snapshot is successfully taken.
+.Pp
+The
+.Fn stats_blob_destroy
+function destroys a blob previously created with
+.Fn stats_blob_alloc ,
+.Fn stats_blob_clone
+or
+.Fn stats_blob_snapshot .
+.Pp
+The
+.Fn stats_blob_visit
+function allows the caller to iterate over the contents of a blob.
+The callback function
+.Fa func
+is called for every VOI and statistic in the blob, passing a
+.Vt struct sb_visit
+and the user context argument
+.Fa usrctx
+to the callback function.
+The
+.Fa sbv
+passed to the callback function may have one or more of the following flags set
+in the
+.Va flags
+struct member to provide useful metadata about the iteration:
+.Dv SB_IT_FIRST_CB ,
+.Dv SB_IT_LAST_CB ,
+.Dv SB_IT_FIRST_VOI ,
+.Dv SB_IT_LAST_VOI ,
+.Dv SB_IT_FIRST_VOISTAT ,
+.Dv SB_IT_LAST_VOISTAT ,
+.Dv SB_IT_NULLVOI
+and
+.Dv SB_IT_NULLVOISTAT .
+Returning a non-zero value from the callback function terminates the iteration.
+.Pp
+The
+.Fn stats_blob_tostr
+renders a string representation of a blob into the
+.Xr sbuf 9
+.Fa buf .
+Currently supported render formats are
+.Dv SB_STRFMT_FREEFORM
+and
+.Dv SB_STRFMT_JSON .
+The
+.Dv SB_TOSTR_OBJDUMP
+flag can be passed to render version specific opaque implementation detail for
+debugging or string-to-binary blob reconstruction purposes.
+The
+.Dv SB_TOSTR_META
+flag can be passed to render template metadata into the string representation,
+using the blob's template hash to lookup the corresponding template.
+.Pp
+The
+.Fn stats_voistatdata_tostr
+renders a string representation of an individual statistic's data into the
+.Xr sbuf 9
+.Fa buf .
+The same render formats supported by the
+.Fn stats_blob_tostr
+function can be specified, and the
+.Fa objdump
+boolean has the same meaning as the
+.Dv SB_TOSTR_OBJDUMP
+flag.
+.Pp
+The
+.Fn stats_voistat_fetch_dptr
+function returns an internal blob pointer to the specified
+.Fa stype
+statistic data for the VOI
+.Fa voi_id .
+The
+.Fn stats_voistat_fetch_<dtype>
+functions are convenience wrappers around
+.Fn stats_voistat_fetch_dptr
+to perform the extraction for simple data types.
+.Sh IMPLEMENTATION NOTES
+The following notes apply to STATS_ABI_V1 format statsblobs.
+.Ss Space-Time Complexity
+Blobs are laid out as three distinct memory regions following the header:
+.Bd -literal -offset indent
+------------------------------------------------------
+|   struct    | struct |   struct   |     struct     |
+| statsblobv1 | voi [] | voistat [] | voistatdata [] |
+------------------------------------------------------
+.Ed
+.Pp
+Blobs store VOI and statistic blob state
+.Po
+8 bytes for
+.Vt struct voi
+and 8 bytes for
+.Vt struct voistat
+respectively
+.Pc
+in sparse arrays, using the
+.Fa voi_id
+and
+.Vt enum voi_stype
+as array indices.
+This allows O(1) access to any voi/voistat pair in the blob, at the expense of
+8 bytes of wasted memory per vacant slot for templates which do not specify
+contiguously numbered VOIs and/or statistic types.
+Data storage for statistics is only allocated for non-vacant slot pairs.
+.Pp
+To provide a concrete example, a blob with the following specification:
+.Bl -dash
+.It
+Two VOIs; ID 0 and 2; added to the template in that order
+.It
+VOI 0 is of data type
+.Vt int64_t ,
+is configured with
+.Dv SB_VOI_RELUPDATE
+to enable support for relative updates using
+.Fn stats_voi_update_rel_<dtype> ,
+and has a
+.Dv VS_STYPE_MIN
+statistic associated with it.
+.It
+VOI 2 is of data type
+.Vt uint32_t
+with
+.Dv VS_STYPE_SUM
+and
+.Dv VS_STYPE_MAX
+statistics associated with it.
+.El
+.Pp
+would have the following memory layout:
+.Bd -literal
+--------------------------------------
+| header			     | struct statsblobv1, 32 bytes
+|------------------------------------|
+| voi[0]			     | struct voi, 8 bytes
+| voi[1] (vacant)		     | struct voi, 8 bytes
+| voi[2]			     | struct voi, 8 bytes
+|------------------------------------|
+| voi[2]voistat[VOISTATE] (vacant)   | struct voistat, 8 bytes
+| voi[2]voistat[SUM]		     | struct voistat, 8 bytes
+| voi[2]voistat[MAX]		     | struct voistat, 8 bytes
+| voi[0]voistat[VOISTATE]	     | struct voistat, 8 bytes
+| voi[0]voistat[SUM] (vacant)	     | struct voistat, 8 bytes
+| voi[0]voistat[MAX] (vacant)	     | struct voistat, 8 bytes
+| voi[0]voistat[MIN]		     | struct voistat, 8 bytes
+|------------------------------------|
+| voi[2]voistat[SUM]voistatdata      | struct voistatdata_int32, 4 bytes
+| voi[2]voistat[MAX]voistatdata      | struct voistatdata_int32, 4 bytes
+| voi[0]voistat[VOISTATE]voistatdata | struct voistatdata_numeric, 8 bytes
+| voi[0]voistat[MIN]voistatdata      | struct voistatdata_int64, 8 bytes
+--------------------------------------
+				       TOTAL 136 bytes
+.Ed
+.Pp
+When rendered to string format using
+.Fn stats_blob_tostr ,
+the
+.Dv SB_STRFMT_FREEFORM
+.Fa fmt
+and the
+.Dv SB_TOSTR_OBJDUMP
+flag, the rendered output is:
+.Bd -literal
+struct statsblobv1@0x8016250a0, abi=1, endian=1, maxsz=136, cursz=136, \\
+  created=6294158585626144, lastrst=6294158585626144, flags=0x0000, \\
+  stats_off=56, statsdata_off=112, tplhash=2994056564
+    vois[0]: id=0, name="", flags=0x0001, dtype=INT_S64, voistatmaxid=3, \\
+      stats_off=80
+        vois[0]stat[0]: stype=VOISTATE, flags=0x0000, dtype=VOISTATE, \\
+          dsz=8, data_off=120
+            voistatdata: prev=0
+        vois[0]stat[1]: stype=-1
+        vois[0]stat[2]: stype=-1
+        vois[0]stat[3]: stype=MIN, flags=0x0000, dtype=INT_S64, \\
+          dsz=8, data_off=128
+            voistatdata: 9223372036854775807
+    vois[1]: id=-1
+    vois[2]: id=2, name="", flags=0x0000, dtype=INT_U32, voistatmaxid=2, \\
+      stats_off=56
+        vois[2]stat[0]: stype=-1
+        vois[2]stat[1]: stype=SUM, flags=0x0000, dtype=INT_U32, dsz=4, \\
+          data_off=112
+            voistatdata: 0
+        vois[2]stat[2]: stype=MAX, flags=0x0000, dtype=INT_U32, dsz=4, \\
+          data_off=116
+            voistatdata: 0
+.Ed
+.Pp
+Note: The
+.Qq \e
+present in the rendered output above indicates a manual line break inserted to
+keep the man page within 80 columns and is not part of the actual output.
+.Ss Locking
+The
+.Nm
+framework does not provide any concurrency protection at the individual blob
+level, instead requiring that consumers guarantee mutual exclusion when calling
+API functions that reference a non-template blob.
+.Pp
+The list of templates is protected with a
+.Xr rwlock 9
+in-kernel, and
+.Xr pthread 3
+rw lock in user space to support concurrency between template management and
+blob initialization operations.
+.Sh RETURN VALUES
+.Fn stats_tpl_alloc
+returns a runtime-stable template slot ID on success, or a negative errno on
+failure.
+-EINVAL is returned if any problems are detected with the arguments.
+-EEXIST is returned if an existing template is registered with the same name.
+-ENOMEM is returned if a required memory allocation fails.
+.Pp
+.Fn stats_tpl_fetch_allocid
+returns a runtime-stable template slot ID, or negative errno on failure.
+-ESRCH is returned if no registered template matches the specified name and/or
+hash.
+.Pp
+.Fn stats_tpl_fetch
+returns 0 on success, or ENOENT if an invalid
+.Fa tpl_id
+is specified.
+.Pp
+.Fn stats_tpl_id2name
+returns 0 on success, or an errno on failure.
+EOVERFLOW is returned if the length of
+.Fa buf
+specified by
+.Fa len
+is too short to hold the template's name.
+ENOENT is returned if an invalid
+.Fa tpl_id
+is specified.
+.Pp
+.Fn stats_tpl_sample_rollthedice
+returns a valid template slot id selected from
+.Fa rates
+or -1 if a NULL selection was made, that is no stats collection this roll.
+.Pp
+.Fn stats_tpl_add_voistats
+return 0 on success, or an errno on failure.
+EINVAL is returned if any problems are detected with the arguments.
+EFBIG is returned if the resulting blob would have exceeded the maximum size.
+EOPNOTSUPP is returned if an attempt is made to add more VOI stats to a
+previously configured VOI.
+ENOMEM is returned if a required memory allocation fails.
+.Pp
+.Fn stats_voi_update_abs_<dtype>
+and
+.Fn stats_voi_update_rel_<dtype>
+return 0 on success, or EINVAL if any problems are detected with the arguments.
+.Pp
+.Fn stats_blob_init
+returns 0 on success, or an errno on failure.
+EINVAL is returned if any problems are detected with the arguments.
+EOVERFLOW is returned if the template blob's
+.Fa cursz
+is larger than the
+.Fa maxsz
+of the blob being initialized.
+.Pp
+.Fn stats_blob_alloc
+returns a pointer to a newly allocated and initialized blob based on the
+specified template with slot ID
+.Fa tpl_id ,
+or NULL if the memory allocation failed.
+.Pp
+.Fn stats_blob_clone
+and
+.Fn stats_blob_snapshot
+return 0 on success, or an errno on failure.
+EINVAL is returned if any problems are detected with the arguments.
+ENOMEM is returned if the SB_CLONE_ALLOCDST flag was specified and the memory
+allocation for
+.Fa dst
+fails.
+EOVERFLOW is returned if the src blob's
+.Fa cursz
+is larger than the
+.Fa maxsz
+of the
+.Fa dst
+blob.
+.Pp
+.Fn stats_blob_visit
+returns 0 on success, or EINVAL if any problems are detected with the arguments.
+.Pp
+.Fn stats_blob_tostr
+and
+.Fn stats_voistatdata_tostr
+return 0 on success, or an errno on failure.
+EINVAL is returned if any problems are detected with the arguments, otherwise
+any error returned by
+.Fn sbuf_error
+for
+.Fa buf
+is returned.
+.Pp
+.Fn stats_voistat_fetch_dptr
+returns 0 on success, or EINVAL if any problems are detected with the arguments.
+.Pp
+.Fn stats_voistat_fetch_<dtype>
+returns 0 on success, or an errno on failure.
+EINVAL is returned if any problems are detected with the arguments.
+EFTYPE is returned if the requested data type does not match the blob's data
+type for the specified
+.Fa voi_id
+and
+.Fa stype .
+.Sh SEE ALSO
+.Xr errno 2 ,
+.Xr arb 3 ,
+.Xr qmath 3 ,
+.Xr tcp 4 ,
+.Xr sbuf 9
+.Rs
+.%A "Ted Dunning"
+.%A "Otmar Ertl"
+.%T "Computing Extremely Accurate Quantiles Using t-digests"
+.%U "https://github.com/tdunning/t-digest/raw/master/docs/t-digest-paper/histo.pdf"
+.Re
+.Sh HISTORY
+The
+.Nm
+framework first appeared in
+.Fx 13.0 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+framework and this manual page were written by
+.An Lawrence Stewart Aq lstewart@FreeBSD.org
+and sponsored by Netflix, Inc.
+.Sh CAVEATS
+Granularity of timing-dependent network statistics, in particular TCP_RTT,
+depends on the
+.Dv HZ
+timer.
+To minimize the measurement error avoid using HZ lower than 1000.
diff --git a/static/freebsd/man3/stdarg.3 b/static/freebsd/man3/stdarg.3
new file mode 100644
index 00000000..71409508
--- /dev/null
+++ b/static/freebsd/man3/stdarg.3
@@ -0,0 +1,243 @@
+.\" Copyright (c) 1990, 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" 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.
+.\"
+.Dd October 18, 2024
+.Dt STDARG 3
+.Os
+.Sh NAME
+.Nm stdarg
+.Nd variable argument lists
+.Sh SYNOPSIS
+.In stdarg.h
+.Ft void
+.Fn va_start "va_list ap" last
+.Ft type
+.Fn va_arg "va_list ap" type
+.Ft void
+.Fn va_copy "va_list dest" "va_list src"
+.Ft void
+.Fn va_end "va_list ap"
+.Sh DESCRIPTION
+A function may be called with a varying number of arguments of varying
+types.
+The include file
+.In stdarg.h
+declares a type
+.Pq Em va_list
+and defines four macros for stepping
+through a list of arguments whose number and types are not known to
+the called function.
+.Pp
+The called function must declare an object of type
+.Em va_list
+which is used by the macros
+.Fn va_start ,
+.Fn va_arg ,
+.Fn va_copy ,
+and
+.Fn va_end .
+.Pp
+The
+.Fn va_start
+macro initializes
+.Fa ap
+for subsequent use by
+.Fn va_arg ,
+.Fn va_copy ,
+and
+.Fn va_end ,
+and must be called first.
+.Pp
+The parameter
+.Fa last
+is the name of the last parameter before the variable argument list,
+i.e., the last parameter of which the calling function knows the type.
+.Pp
+Because the address of this parameter is used in the
+.Fn va_start
+macro, it should not be declared as a register variable, or as a
+function or an array type.
+.Pp
+The
+.Fn va_arg
+macro expands to an expression that has the type and value of the next
+argument in the call.
+The parameter
+.Fa ap
+is the
+.Em va_list Fa ap
+initialized by
+.Fn va_start
+or
+.Fn va_copy .
+Each call to
+.Fn va_arg
+modifies
+.Fa ap
+so that the next call returns the next argument.
+The parameter
+.Fa type
+is a type name specified so that the type of a pointer to an
+object that has the specified type can be obtained simply by
+adding a *
+to
+.Fa type .
+.Pp
+If there is no next argument, or if
+.Fa type
+is not compatible with the type of the actual next argument
+(as promoted according to the default argument promotions),
+random errors will occur.
+.Pp
+The first use of the
+.Fn va_arg
+macro after that of the
+.Fn va_start
+macro returns the argument after
+.Fa last .
+Successive invocations return the values of the remaining
+arguments.
+.Pp
+The
+.Fn va_copy
+macro copies a variable argument list, previously initialized by
+.Fn va_start ,
+from
+.Fa src
+to
+.Fa dest .
+The state is preserved such that it is equivalent to calling
+.Fn va_start
+with the same second argument used with
+.Fa src ,
+and calling
+.Fn va_arg
+the same number of times as called with
+.Fa src .
+.Pp
+The
+.Fn va_end
+macro cleans up any state associated with the variable argument list
+.Fa ap .
+.Pp
+Each invocation of
+.Fn va_start
+or
+.Fn va_copy
+must be paired with a corresponding invocation of
+.Fn va_end
+in the same function.
+.Sh RETURN VALUES
+The
+.Fn va_arg
+macro returns the value of the next argument.
+.Pp
+The
+.Fn va_start ,
+.Fn va_copy ,
+and
+.Fn va_end
+macros return no value.
+.Sh EXAMPLES
+The function
+.Em foo
+takes a string of format characters and prints out the argument
+associated with each format character based on the type.
+.Bd -literal -offset indent
+void foo(char *fmt, ...)
+{
+	va_list ap;
+	int d;
+	char c, *s;
+
+	va_start(ap, fmt);
+	while (*fmt)
+		switch(*fmt++) {
+		case 's':			/* string */
+			s = va_arg(ap, char *);
+			printf("string %s\en", s);
+			break;
+		case 'd':			/* int */
+			d = va_arg(ap, int);
+			printf("int %d\en", d);
+			break;
+		case 'c':			/* char */
+			/* Note: char is promoted to int. */
+			c = va_arg(ap, int);
+			printf("char %c\en", c);
+			break;
+		}
+	va_end(ap);
+}
+.Ed
+.Sh COMPATIBILITY
+These macros are
+.Em not
+compatible with the historic macros they replace.
+.Sh STANDARDS
+The
+.Fn va_start ,
+.Fn va_arg ,
+.Fn va_copy ,
+and
+.Fn va_end
+macros conform to
+.St -isoC-99 .
+.Sh HISTORY
+The
+.Fn va_start ,
+.Fn va_arg
+and
+.Fn va_end
+macros were introduced in
+.St -ansiC .
+The
+.Fn va_copy
+macro was introduced in
+.St -isoC-99 .
+.Sh BUGS
+Unlike the
+.Em varargs
+macros, the
+.Nm
+macros do not permit programmers to
+code a function with no fixed arguments.
+This problem generates work mainly when converting
+.Em varargs
+code to
+.Nm
+code,
+but it also creates difficulties for variadic functions that
+wish to pass all of their arguments on to a function
+that takes a
+.Em va_list
+argument, such as
+.Xr vfprintf 3 .
diff --git a/static/freebsd/man3/stdbit.3 b/static/freebsd/man3/stdbit.3
new file mode 100644
index 00000000..bdee56cc
--- /dev/null
+++ b/static/freebsd/man3/stdbit.3
@@ -0,0 +1,120 @@
+.\"
+.\" Copyright (c) 2025 Robert Clausecker <fuz@FreeBSD.org>
+.\"
+.\" SPDX-License-Identifier: BSD-2-Clause
+.\"
+.Dd November 9, 2025
+.Dt STDBIT 3
+.Os
+.Sh NAME
+.Nm stdbit
+.Nd bit and byte utilities
+.Sh SYNOPSIS
+.Lb libc
+.In stdbit.h
+.Fd #define __STDC_ENDIAN_LITTLE__
+.Fd #define __STDC_ENDIAN_BIG__
+.Fd #define __STDC_ENDIAN_NATIVE__
+.Ft unsigned int
+.Fn stdc_count_leading_zeros "value"
+.Ft unsigned int
+.Fn stdc_count_leading_ones "value"
+.Ft unsigned int
+.Fn stdc_count_trailing_zeros "value"
+.Ft unsigned int
+.Fn stdc_count_trailing_ones "value"
+.Ft unsigned int
+.Fn stdc_first_leading_zero "value"
+.Ft unsigned int
+.Fn stdc_first_leading_one "value"
+.Ft unsigned int
+.Fn stdc_first_trailing_zero "value"
+.Ft unsigned int
+.Fn stdc_first_trailing_one "value"
+.Ft unsigned int
+.Fn stdc_count_zeros "value"
+.Ft unsigned int
+.Fn stdc_count_ones "value"
+.Ft bool
+.Fn stdc_has_single_bit "value"
+.Ft unsigned int
+.Fn stdc_bit_width "value"
+.Ft typeof Ns Pq Em value
+.Fn stdc_bit_floor "value"
+.Ft typeof Ns Pq Em value
+.Fn stdc_bit_ceil "value"
+.Sh DESCRIPTION
+The
+.Dv __STDC_ENDIAN_NATIVE__
+macro describes the byte order or endianness of the machine for which the
+program is built.
+If the machine has big-endian byte order, this macro is equal to
+.Dv __STDC_ENDIAN_BIG__ .
+If the machine has little-endian byte order, this macro is equal to
+.Dv __STDC_ENDIAN_LITTLE__ .
+Otherwise, the macro has a value that is equal to neither.
+.Pp
+The bit and byte utility functions analyze the bits within a datum.
+Each function
+.Em func
+is provided in five variants
+.Nm stdc_ Ns Em func Ns Em _ Ns Em type Ns Pq Em value
+where
+.Fa value
+is of type
+.Va unsigned char ,
+.Va unsigned short ,
+.Va unsigned int ,
+.Va unsigned long ,
+or
+.Va unsigned long long
+for
+.Em type
+being
+.Sy uc ,
+.Sy us ,
+.Sy ui ,
+.Sy ul ,
+or
+.Sy ull
+respectively.
+Additionally, for each
+.Em func ,
+a type-generic macro
+.Nm stdc_ Ns Em func Ns Pq Em value
+that picks the appropriate function
+.Nm stdc_ Ns Em func Ns Em _ Ns Em type Ns Pq Em value
+based on the type of
+.Fa value
+is provided.
+.Sh SEE ALSO
+.Xr arch 7 ,
+.Xr bitstring 3 ,
+.Xr ffs 3 ,
+.Xr fls 3 ,
+.Xr stdc_count_leading_zeros 3 ,
+.Xr stdc_count_leading_ones 3 ,
+.Xr stdc_count_trailing_zeros 3 ,
+.Xr stdc_count_trailing_ones 3 ,
+.Xr stdc_first_leading_zero 3 ,
+.Xr stdc_first_leading_one 3 ,
+.Xr stdc_first_trailing_zero 3 ,
+.Xr stdc_first_trailing_one 3 ,
+.Xr stdc_count_zeros 3 ,
+.Xr stdc_count_ones 3 ,
+.Xr stdc_has_single_bit 3 ,
+.Xr stdc_bit_width 3 ,
+.Xr stdc_bit_floor 3 ,
+.Xr stdc_bit_ceil 3
+.Sh STANDARDS
+The macros and functions of the
+.In stdbit.h
+header conform to
+.St -isoC-2023 .
+.Sh HISTORY
+The
+.In stdbit.h
+header and the macros and functions defined therein where added in
+.Fx 15.1.
+.Sh AUTHOR
+.An Robert Clausecker Aq Mt fuz@FreeBSD.org
diff --git a/static/freebsd/man3/stdckdint.3 b/static/freebsd/man3/stdckdint.3
new file mode 100644
index 00000000..4f12b4a8
--- /dev/null
+++ b/static/freebsd/man3/stdckdint.3
@@ -0,0 +1,106 @@
+.\"-
+.\" Copyright (c) 2023 Dag-Erling Smørgrav
+.\"
+.\" SPDX-License-Identifier: BSD-2-Clause
+.\"
+.Dd September 5, 2023
+.Dt STDCKDINT 3
+.Os
+.Sh NAME
+.Nm stdckdint
+.Nd checked integer arithmetic
+.Sh SYNOPSIS
+.In stdckdint.h
+.Ft bool
+.Fn ckd_add "type1 *result" "type2 a" "type3 b"
+.Ft bool
+.Fn ckd_sub "type1 *result" "type2 a" "type3 b"
+.Ft bool
+.Fn ckd_mul "type1 *result" "type2 a" "type3 b"
+.Sh DESCRIPTION
+The function-like macros
+.Nm ckd_add ,
+.Nm ckd_sub ,
+and
+.Nm ckd_mul
+perform checked integer addition, subtraction, and multiplication,
+respectively.
+If the result of adding, subtracting, or multiplying
+.Fa a
+and
+.Fa b
+as if their respective types had infinite range fits in
+.Ft type1 ,
+it is stored in the location pointed to by
+.Fa result
+and the macro evaluates to
+.Dv false .
+Otherwise, the macro evaluates to
+.Dv true
+and the contents of the location pointed to by
+.Fa result
+is the result of the operation wrapped to the range of
+.Ft type1 .
+.Sh RETURN VALUES
+The
+.Nm ckd_add ,
+.Nm ckd_sub ,
+and
+.Nm ckd_mul
+macros evaluate to
+.Dv true
+if the requested operation overflowed the result type and
+.Dv false
+otherwise.
+.Sh EXAMPLES
+.Bd -literal -offset indent
+#include <assert.h>
+#include <limits.h>
+#include <stdckdint.h>
+
+int main(void)
+{
+	int result;
+
+	assert(!ckd_add(&result, INT_MAX, 0));
+	assert(result == INT_MAX);
+	assert(ckd_add(&result, INT_MAX, 1));
+	assert(result == INT_MIN);
+
+	assert(!ckd_sub(&result, INT_MIN, 0));
+	assert(result == INT_MIN);
+	assert(ckd_sub(&result, INT_MIN, 1));
+	assert(result == INT_MAX);
+
+	assert(!ckd_mul(&result, INT_MAX / 2, 2));
+	assert(result == INT_MAX - 1);
+	assert(ckd_mul(&result, INT_MAX / 2 + 1, 2));
+	assert(result == INT_MIN);
+
+	return 0;
+}
+.Ed
+.\" .Sh STANDARDS
+.\" The
+.\" .Nm ckd_add ,
+.\" .Nm ckd_sub ,
+.\" and
+.\" .Nm ckd_mul
+.\" macros conform to
+.\" .St -isoC-2023 .
+.Sh HISTORY
+The
+.Nm ckd_add ,
+.Nm ckd_sub ,
+and
+.Nm ckd_mul
+macros were first introduced in
+.Fx 14.0 .
+.Sh AUTHORS
+The
+.Nm ckd_add ,
+.Nm ckd_sub ,
+and
+.Nm ckd_mul
+macros and this manual page were written by
+.An Dag-Erling Sm\(/orgrav Aq Mt des@FreeBSD.org .
diff --git a/static/freebsd/man3/sysexits.3 b/static/freebsd/man3/sysexits.3
new file mode 100644
index 00000000..62f79b28
--- /dev/null
+++ b/static/freebsd/man3/sysexits.3
@@ -0,0 +1,135 @@
+.\"-
+.\" SPDX-License-Identifier: BSD-2-Clause
+.\"
+.\" Copyright (c) 1996 Joerg Wunsch. All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``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 DEVELOPERS 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.
+.\"
+.Dd May 9, 2024
+.Dt SYSEXITS 3
+.Os
+.Sh NAME
+.Nm sysexits
+.Nd legacy exit status codes for system programs
+.Sh SYNOPSIS
+.In sysexits.h
+.Sh DESCRIPTION
+Some commands attempt to describe the nature of a failure condition
+by using these pre-defined exit codes.
+This interface has been deprecated and is retained only for compatibility.
+Its use is discouraged.
+.Sh ERRORS
+The successful exit is always indicated by a status of 0, or
+.Sy EX_OK .
+Error numbers begin at
+.Sy EX__BASE
+to reduce the possibility of clashing with other exit statuses that
+random programs may already return.
+The meaning of the codes is
+approximately as follows:
+.Bl -tag -width "EX_UNAVAILABLEXX(XX)"
+.It Sy EX_USAGE Pq 64
+The command was used incorrectly, e.g., with the wrong number of
+arguments, a bad flag, a bad syntax in a parameter, or whatever.
+.It Sy EX_DATAERR Pq 65
+The input data was incorrect in some way.
+This should only be used
+for user's data and not system files.
+.It Sy EX_NOINPUT Pq 66
+An input file (not a system file) did not exist or was not readable.
+This could also include errors like
+.Dq \&No message
+to a mailer (if it cared to catch it).
+.It Sy EX_NOUSER Pq 67
+The user specified did not exist.
+This might be used for mail
+addresses or remote logins.
+.It Sy EX_NOHOST Pq 68
+The host specified did not exist.
+This is used in mail addresses or
+network requests.
+.It Sy EX_UNAVAILABLE Pq 69
+A service is unavailable.
+This can occur if a support program or file
+does not exist.
+This can also be used as a catchall message when
+something you wanted to do does not work, but you do not know why.
+.It Sy EX_SOFTWARE Pq 70
+An internal software error has been detected.
+This should be limited
+to non-operating system related errors as possible.
+.It Sy EX_OSERR Pq 71
+An operating system error has been detected.
+This is intended to be
+used for such things as
+.Dq cannot fork ,
+.Dq cannot create pipe ,
+or the like.
+It includes things like getuid returning a user that
+does not exist in the passwd file.
+.It Sy EX_OSFILE Pq 72
+Some system file (e.g.,
+.Pa /etc/passwd ,
+.Pa /var/run/utx.active ,
+etc.) does not exist, cannot be opened, or has some sort of error
+(e.g., syntax error).
+.It Sy EX_CANTCREAT Pq 73
+A (user specified) output file cannot be created.
+.It Sy EX_IOERR Pq 74
+An error occurred while doing I/O on some file.
+.It Sy EX_TEMPFAIL Pq 75
+Temporary failure, indicating something that is not really an error.
+In sendmail, this means that a mailer (e.g.) could not create a
+connection, and the request should be reattempted later.
+.It Sy EX_PROTOCOL Pq 76
+The remote system returned something that was
+.Dq not possible
+during a protocol exchange.
+.It Sy EX_NOPERM Pq 77
+You did not have sufficient permission to perform the operation.
+This is not intended for file system problems, which should use
+.Sy EX_NOINPUT
+or
+.Sy EX_CANTCREAT ,
+but rather for higher level permissions.
+.It Sy EX_CONFIG Pq 78
+Something was found in an unconfigured or misconfigured state.
+.El
+.Pp
+The numerical values corresponding to the symbolical ones are given in
+parenthesis for easy reference.
+.Sh SEE ALSO
+.Xr err 3 ,
+.Xr exit 3 ,
+.Xr style 9
+.Sh HISTORY
+The
+.Nm
+file first appeared in
+.Bx 4 .
+.Sh AUTHORS
+This manual page was written by
+.An J\(:org Wunsch .
+.Sh BUGS
+.Bl -tag -width 0 -compact
+.It This interface is not portable.
+.It The choice of an appropriate exit value is often ambiguous.
+.El
diff --git a/static/freebsd/man3/tgmath.3 b/static/freebsd/man3/tgmath.3
new file mode 100644
index 00000000..98dbb743
--- /dev/null
+++ b/static/freebsd/man3/tgmath.3
@@ -0,0 +1,160 @@
+.\" Copyright (c) 2004 Stefan Farfeleder
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY AUTHOR 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 AUTHOR 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.
+.\"
+.Dd January 4, 2012
+.Dt TGMATH 3
+.Os
+.Sh NAME
+.Nm tgmath
+.Nd "type-generic macros"
+.Sh SYNOPSIS
+.In tgmath.h
+.Sh DESCRIPTION
+The header
+.In tgmath.h
+provides type-generic macros
+for
+.In math.h
+and
+.In complex.h
+functions that have
+.Vt float
+(suffixed with
+.Sy f ) ,
+.Vt double
+and
+.Vt "long double"
+(suffixed with
+.Sy l )
+versions.
+The arguments that vary across the three functions and have type
+.Vt float , double
+and
+.Vt "long double" ,
+respectively, are called
+.Em "generic arguments" .
+.Pp
+The following rules describe which function is actually called if a
+type-generic macro is invoked.
+If any generic argument has type
+.Vt "long double"
+or
+.Vt "long double complex" ,
+the
+.Vt "long double"
+function is called.
+Else, if any generic argument has type
+.Vt double , "double complex"
+or an integer type, the
+.Vt double
+version is invoked.
+Otherwise, the macro expands to the
+.Vt float
+implementation.
+.Pp
+For the macros in the following table, both real and complex functions
+exist.
+The real functions are prototyped in
+.In math.h
+and the complex equivalents in
+.In complex.h .
+The complex function is called if any of the generic arguments is a
+complex value.
+Otherwise, the real equivalent is called.
+.Bl -column -offset indent ".Fn acosh" "Sy real function" ".Sy complex function"
+.It Sy Macro Ta Sy real function Ta Sy complex function
+.It Fn acos Ta Fn acos Ta Fn cacos
+.It Fn asin Ta Fn asin Ta Fn casin
+.It Fn atan Ta Fn atan Ta Fn catan
+.It Fn acosh Ta Fn acosh Ta Fn cacosh
+.It Fn asinh Ta Fn asinh Ta Fn casinh
+.It Fn atanh Ta Fn atanh Ta Fn catanh
+.It Fn cos Ta Fn cos Ta Fn ccos
+.It Fn sin Ta Fn sin Ta Fn csin
+.It Fn tan  Ta Fn tan Ta Fn ctan
+.It Fn cosh Ta Fn cosh Ta Fn ccosh
+.It Fn sinh Ta Fn sinh Ta Fn csinh
+.It Fn tanh Ta Fn tanh Ta Fn ctanh
+.It Fn exp Ta Fn exp Ta Fn cexp
+.It Fn log Ta Fn log Ta Fn clog
+.It Fn pow Ta Fn pow Ta Fn cpow
+.It Fn sqrt Ta Fn sqrt Ta Fn csqrt
+.It Fn fabs Ta Fn fabs Ta Fn cabs
+.El
+.Pp
+No complex functions exist for the following macros, so passing a
+complex value to a generic argument invokes undefined behaviour:
+.Bl -column -offset indent ".Fn nexttoward" ".Fn nexttoward" ".Fn nexttoward" ".Fn nexttoward"
+.It Fn atan2 Ta Fn fma Ta Fn llround Ta Fn remainder
+.It Fn cbrt Ta Fn fmax Ta Fn log10 Ta Fn remquo
+.It Fn ceil Ta Fn fmin Ta Fn log1p Ta Fn rint
+.It Fn copysign Ta Fn fmod Ta Fn log2 Ta Fn round
+.It Fn erf Ta Fn frexp Ta Fn logb Ta Fn scalbn
+.It Fn erfc Ta Fn hypot Ta Fn lrint Ta Fn scalbln
+.It Fn exp2 Ta Fn ilogb Ta Fn lround Ta Fn tgamma
+.It Fn expm1 Ta Fn ldexp Ta Fn nearbyint Ta Fn trunc
+.It Fn fdim Ta Fn lgamma Ta Fn nextafter Ta \&
+.It Fn floor Ta Fn llrint Ta Fn nexttoward Ta \&
+.El
+.Pp
+The following macros always expand to a complex function:
+.Bl -column -offset indent ".Fn cimag" ".Fn cimag" ".Fn cimag" ".Fn cimag" ".Fn cimag"
+.It Fn carg Ta Fn cimag Ta Fn conj Ta Fn cproj Ta Fn creal
+.El
+.Pp
+This header includes
+.In complex.h
+and
+.In math.h .
+.Sh STANDARDS
+The header
+.In tgmath.h
+conforms to
+.St -isoC-99 .
+.Sh HISTORY
+The header
+.In tgmath.h
+first appeared in
+.Fx 5.3 .
+.Sh COMPILER SUPPORT
+Before
+.St -isoC-2011 ,
+the header
+.In tgmath.h
+could not be implemented with strictly conforming C code and needed
+special compiler support.
+As of
+.St -isoC-2011 ,
+this header file can be implemented using the
+.Fn _Generic
+language keyword.
+In addition to compilers that support this keyword, this header file
+works with GCC.
+.Sh BUGS
+Many of the functions mentioned here are not prototyped in
+.In math.h
+or
+.In complex.h
+as they are not yet implemented.
+This prevents the corresponding type-generic macro from working at all.
diff --git a/static/freebsd/man3/timeradd.3 b/static/freebsd/man3/timeradd.3
new file mode 100644
index 00000000..97202678
--- /dev/null
+++ b/static/freebsd/man3/timeradd.3
@@ -0,0 +1,164 @@
+.\" Copyright (c) 1999 Kelly Yancey <kbyanc@posi.net>
+.\" All rights reserved.
+.\"
+.\" 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 author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
+.\"
+.Dd July 30, 2018
+.Dt TIMERADD 3
+.Os
+.Sh NAME
+.Nm timeradd ,
+.Nm timersub ,
+.Nm timerclear ,
+.Nm timerisset ,
+.Nm timercmp ,
+.Nm timespecadd ,
+.Nm timespecsub ,
+.Nm timespecclear ,
+.Nm timespecisset ,
+.Nm timespeccmp
+.Nd operations on timevals and timespecs
+.Sh SYNOPSIS
+.In sys/time.h
+.Ft void
+.Fn timeradd "struct timeval *a" "struct timeval *b" "struct timeval *res"
+.Ft void
+.Fn timersub "struct timeval *a" "struct timeval *b" "struct timeval *res"
+.Ft void
+.Fn timerclear "struct timeval *tvp"
+.Ft int
+.Fn timerisset "struct timeval *tvp"
+.Ft int
+.Fn timercmp "struct timeval *a" "struct timeval *b" CMP
+.Ft void
+.Fn timespecadd "struct timespec *a" "struct timespec *b" "struct timespec *res"
+.Ft void
+.Fn timespecsub "struct timespec *a" "struct timespec *b" "struct timespec *res"
+.Ft void
+.Fn timespecclear "struct timespec *ts"
+.Ft int
+.Fn timespecisset "struct timespec *ts"
+.Ft int
+.Fn timespeccmp "struct timespec *a" "struct timespec *b" CMP
+.Sh DESCRIPTION
+These macros are provided for manipulating
+.Fa timeval
+and
+.Fa timespec
+structures for use with the
+.Xr clock_gettime 2 ,
+.Xr clock_settime 2 ,
+.Xr gettimeofday 2
+and
+.Xr settimeofday 2
+calls.
+The
+.Fa timeval
+structure is defined in
+.In sys/time.h
+as:
+.Bd -literal
+struct timeval {
+	long	tv_sec;		/* seconds since Jan. 1, 1970 */
+	long	tv_usec;	/* and microseconds */
+};
+.Ed
+.Pp
+And the
+.Fa timespec
+structure is defined in
+.In time.h
+as:
+.Bd -literal
+struct timespec {
+	time_t tv_sec;		/* seconds */
+	long   tv_nsec;		/* and nanoseconds */
+};
+.Ed
+.Pp
+.Fn timeradd
+and
+.Fn timespecadd
+add the time information stored in
+.Fa a
+to
+.Fa b
+and store the result in
+.Fa res .
+The results are simplified such that the value of
+.Fa res->tv_usec
+or
+.Fa res->tv_nsec
+is always less than 1 second.
+.Pp
+.Fn timersub
+and
+.Fn timespecsub
+subtract the time information stored in
+.Fa b
+from
+.Fa a
+and store the result
+in
+.Fa res .
+.Pp
+.Fn timerclear
+and
+.Fn timespecclear
+initialize their argument to midnight (0 hour) January 1st, 1970 (the Epoch).
+.Pp
+.Fn timerisset
+and
+.Fn timespecisset
+return true if their argument is set to any time value other than the Epoch.
+.Pp
+.Fn timercmp
+and
+.Fn timespeccmp
+compare
+.Fa a
+to
+.Fa b
+using the comparison operator given in
+.Fa CMP ,
+and return the result of that comparison.
+.Sh SEE ALSO
+.Xr clock_gettime 2 ,
+.Xr gettimeofday 2
+.Sh HISTORY
+The
+.Fn timeradd
+family of macros were imported from
+.Nx 1.1 ,
+and appeared in
+.Fx 2.2.6 .
+The
+.Fn timespecadd
+family of macros were imported from
+.Nx 1.3
+into
+.Fx 3.0 ,
+though they were not exposed to userland until
+.Fx 12.0 .
diff --git a/static/freebsd/man3/tree.3 b/static/freebsd/man3/tree.3
new file mode 100644
index 00000000..83d005a5
--- /dev/null
+++ b/static/freebsd/man3/tree.3
@@ -0,0 +1,816 @@
+.\"	$OpenBSD: tree.3,v 1.7 2002/06/12 01:09:20 provos Exp $
+.\"
+.\" Copyright 2002 Niels Provos <provos@citi.umich.edu>
+.\" All rights reserved.
+.\"
+.\" 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. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"      This product includes software developed by Niels Provos.
+.\" 4. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+.\"
+.Dd August 2, 2024
+.Dt TREE 3
+.Os
+.Sh NAME
+.Nm SPLAY_PROTOTYPE ,
+.Nm SPLAY_GENERATE ,
+.Nm SPLAY_ENTRY ,
+.Nm SPLAY_HEAD ,
+.Nm SPLAY_INITIALIZER ,
+.Nm SPLAY_ROOT ,
+.Nm SPLAY_EMPTY ,
+.Nm SPLAY_NEXT ,
+.Nm SPLAY_MIN ,
+.Nm SPLAY_MAX ,
+.Nm SPLAY_FIND ,
+.Nm SPLAY_LEFT ,
+.Nm SPLAY_RIGHT ,
+.Nm SPLAY_FOREACH ,
+.Nm SPLAY_INIT ,
+.Nm SPLAY_INSERT ,
+.Nm SPLAY_REMOVE ,
+.Nm RB_PROTOTYPE ,
+.Nm RB_PROTOTYPE_STATIC ,
+.Nm RB_PROTOTYPE_INSERT ,
+.Nm RB_PROTOTYPE_INSERT_COLOR ,
+.Nm RB_PROTOTYPE_REMOVE ,
+.Nm RB_PROTOTYPE_REMOVE_COLOR ,
+.Nm RB_PROTOTYPE_FIND ,
+.Nm RB_PROTOTYPE_NFIND ,
+.Nm RB_PROTOTYPE_NEXT ,
+.Nm RB_PROTOTYPE_PREV ,
+.Nm RB_PROTOTYPE_MINMAX ,
+.Nm RB_PROTOTYPE_REINSERT ,
+.Nm RB_GENERATE ,
+.Nm RB_GENERATE_STATIC ,
+.Nm RB_GENERATE_INSERT ,
+.Nm RB_GENERATE_INSERT_COLOR ,
+.Nm RB_GENERATE_REMOVE ,
+.Nm RB_GENERATE_REMOVE_COLOR ,
+.Nm RB_GENERATE_FIND ,
+.Nm RB_GENERATE_NFIND ,
+.Nm RB_GENERATE_NEXT ,
+.Nm RB_GENERATE_PREV ,
+.Nm RB_GENERATE_MINMAX ,
+.Nm RB_GENERATE_REINSERT ,
+.Nm RB_ENTRY ,
+.Nm RB_HEAD ,
+.Nm RB_INITIALIZER ,
+.Nm RB_ROOT ,
+.Nm RB_EMPTY ,
+.Nm RB_NEXT ,
+.Nm RB_PREV ,
+.Nm RB_MIN ,
+.Nm RB_MAX ,
+.Nm RB_FIND ,
+.Nm RB_NFIND ,
+.Nm RB_LEFT ,
+.Nm RB_RIGHT ,
+.Nm RB_PARENT ,
+.Nm RB_FOREACH ,
+.Nm RB_FOREACH_FROM ,
+.Nm RB_FOREACH_SAFE ,
+.Nm RB_FOREACH_REVERSE ,
+.Nm RB_FOREACH_REVERSE_FROM ,
+.Nm RB_FOREACH_REVERSE_SAFE ,
+.Nm RB_INIT ,
+.Nm RB_INSERT ,
+.Nm RB_INSERT_NEXT ,
+.Nm RB_INSERT_PREV ,
+.Nm RB_REMOVE ,
+.Nm RB_REINSERT ,
+.Nm RB_AUGMENT
+.Nm RB_AUGMENT_CHECK,
+.Nm RB_UPDATE_AUGMENT
+.Nd "implementations of splay and rank-balanced (wavl) trees"
+.Sh SYNOPSIS
+.In sys/tree.h
+.Fn SPLAY_PROTOTYPE NAME TYPE FIELD CMP
+.Fn SPLAY_GENERATE NAME TYPE FIELD CMP
+.Fn SPLAY_ENTRY TYPE
+.Fn SPLAY_HEAD HEADNAME TYPE
+.Ft "struct TYPE *"
+.Fn SPLAY_INITIALIZER "SPLAY_HEAD *head"
+.Fn SPLAY_ROOT "SPLAY_HEAD *head"
+.Ft bool
+.Fn SPLAY_EMPTY "SPLAY_HEAD *head"
+.Ft "struct TYPE *"
+.Fn SPLAY_NEXT NAME "SPLAY_HEAD *head" "struct TYPE *elm"
+.Ft "struct TYPE *"
+.Fn SPLAY_MIN NAME "SPLAY_HEAD *head"
+.Ft "struct TYPE *"
+.Fn SPLAY_MAX NAME "SPLAY_HEAD *head"
+.Ft "struct TYPE *"
+.Fn SPLAY_FIND NAME "SPLAY_HEAD *head" "struct TYPE *elm"
+.Ft "struct TYPE *"
+.Fn SPLAY_LEFT "struct TYPE *elm" "SPLAY_ENTRY NAME"
+.Ft "struct TYPE *"
+.Fn SPLAY_RIGHT "struct TYPE *elm" "SPLAY_ENTRY NAME"
+.Fn SPLAY_FOREACH VARNAME NAME "SPLAY_HEAD *head"
+.Ft void
+.Fn SPLAY_INIT "SPLAY_HEAD *head"
+.Ft "struct TYPE *"
+.Fn SPLAY_INSERT NAME "SPLAY_HEAD *head" "struct TYPE *elm"
+.Ft "struct TYPE *"
+.Fn SPLAY_REMOVE NAME "SPLAY_HEAD *head" "struct TYPE *elm"
+.Fn RB_PROTOTYPE NAME TYPE FIELD CMP
+.Fn RB_PROTOTYPE_STATIC NAME TYPE FIELD CMP
+.Fn RB_PROTOTYPE_INSERT NAME TYPE ATTR
+.Fn RB_PROTOTYPE_INSERT_COLOR NAME TYPE ATTR
+.Fn RB_PROTOTYPE_REMOVE NAME TYPE ATTR
+.Fn RB_PROTOTYPE_REMOVE_COLOR NAME TYPE ATTR
+.Fn RB_PROTOTYPE_FIND NAME TYPE ATTR
+.Fn RB_PROTOTYPE_NFIND NAME TYPE ATTR
+.Fn RB_PROTOTYPE_NEXT NAME TYPE ATTR
+.Fn RB_PROTOTYPE_PREV NAME TYPE ATTR
+.Fn RB_PROTOTYPE_MINMAX NAME TYPE ATTR
+.Fn RB_PROTOTYPE_REINSERT NAME TYPE ATTR
+.Fn RB_GENERATE NAME TYPE FIELD CMP
+.Fn RB_GENERATE_STATIC NAME TYPE FIELD CMP
+.Fn RB_GENERATE_INSERT NAME TYPE FIELD CMP ATTR
+.Fn RB_GENERATE_INSERT_COLOR NAME TYPE FIELD ATTR
+.Fn RB_GENERATE_REMOVE NAME TYPE FIELD ATTR
+.Fn RB_GENERATE_REMOVE_COLOR NAME TYPE FIELD ATTR
+.Fn RB_GENERATE_FIND NAME TYPE FIELD CMP ATTR
+.Fn RB_GENERATE_NFIND NAME TYPE FIELD CMP ATTR
+.Fn RB_GENERATE_NEXT NAME TYPE FIELD ATTR
+.Fn RB_GENERATE_PREV NAME TYPE FIELD ATTR
+.Fn RB_GENERATE_MINMAX NAME TYPE FIELD ATTR
+.Fn RB_GENERATE_REINSERT NAME TYPE FIELD CMP ATTR
+.Fn RB_ENTRY TYPE
+.Fn RB_HEAD HEADNAME TYPE
+.Fn RB_INITIALIZER "RB_HEAD *head"
+.Ft "struct TYPE *"
+.Fn RB_ROOT "RB_HEAD *head"
+.Ft "bool"
+.Fn RB_EMPTY "RB_HEAD *head"
+.Ft "struct TYPE *"
+.Fn RB_NEXT NAME "RB_HEAD *head" "struct TYPE *elm"
+.Ft "struct TYPE *"
+.Fn RB_PREV NAME "RB_HEAD *head" "struct TYPE *elm"
+.Ft "struct TYPE *"
+.Fn RB_MIN NAME "RB_HEAD *head"
+.Ft "struct TYPE *"
+.Fn RB_MAX NAME "RB_HEAD *head"
+.Ft "struct TYPE *"
+.Fn RB_FIND NAME "RB_HEAD *head" "struct TYPE *elm"
+.Ft "struct TYPE *"
+.Fn RB_NFIND NAME "RB_HEAD *head" "struct TYPE *elm"
+.Ft "struct TYPE *"
+.Fn RB_LEFT "struct TYPE *elm" "RB_ENTRY NAME"
+.Ft "struct TYPE *"
+.Fn RB_RIGHT "struct TYPE *elm" "RB_ENTRY NAME"
+.Ft "struct TYPE *"
+.Fn RB_PARENT "struct TYPE *elm" "RB_ENTRY NAME"
+.Fn RB_FOREACH VARNAME NAME "RB_HEAD *head"
+.Fn RB_FOREACH_FROM "VARNAME" "NAME" "POS_VARNAME"
+.Fn RB_FOREACH_SAFE "VARNAME" "NAME" "RB_HEAD *head" "TEMP_VARNAME"
+.Fn RB_FOREACH_REVERSE VARNAME NAME "RB_HEAD *head"
+.Fn RB_FOREACH_REVERSE_FROM "VARNAME" "NAME" "POS_VARNAME"
+.Fn RB_FOREACH_REVERSE_SAFE "VARNAME" "NAME" "RB_HEAD *head" "TEMP_VARNAME"
+.Ft void
+.Fn RB_INIT "RB_HEAD *head"
+.Ft "struct TYPE *"
+.Fn RB_INSERT NAME "RB_HEAD *head" "struct TYPE *elm"
+.Ft "struct TYPE *"
+.Fn RB_INSERT_NEXT NAME "RB_HEAD *head" "struct TYPE *elm" "struct TYPE *next"
+.Ft "struct TYPE *"
+.Fn RB_INSERT_PREV NAME "RB_HEAD *head" "struct TYPE *elm" "struct TYPE *prev"
+.Ft "struct TYPE *"
+.Fn RB_REMOVE NAME "RB_HEAD *head" "struct TYPE *elm"
+.Ft "struct TYPE *"
+.Fn RB_REINSERT NAME "RB_HEAD *head" "struct TYPE *elm"
+.Ft "void"
+.Fn RB_AUGMENT NAME "struct TYPE *elm"
+.Ft "bool"
+.Fn RB_AUGMENT_CHECK NAME "struct TYPE *elm"
+.Ft "void"
+.Fn RB_UPDATE_AUGMENT NAME "struct TYPE *elm"
+.Sh DESCRIPTION
+These macros define data structures for different types of trees:
+splay trees and rank-balanced (wavl) trees.
+.Pp
+In the macro definitions,
+.Fa TYPE
+is the name tag of a user defined structure that must contain a field of type
+.Vt SPLAY_ENTRY ,
+or
+.Vt RB_ENTRY ,
+named
+.Fa ENTRYNAME .
+The argument
+.Fa HEADNAME
+is the name tag of a user defined structure that must be declared
+using the macros
+.Fn SPLAY_HEAD ,
+or
+.Fn RB_HEAD .
+The argument
+.Fa NAME
+has to be a unique name prefix for every tree that is defined.
+.Pp
+The function prototypes are declared with
+.Fn SPLAY_PROTOTYPE ,
+.Fn RB_PROTOTYPE ,
+or
+.Fn RB_PROTOTYPE_STATIC .
+The function bodies are generated with
+.Fn SPLAY_GENERATE ,
+.Fn RB_GENERATE ,
+or
+.Fn RB_GENERATE_STATIC .
+See the examples below for further explanation of how these macros are used.
+.Sh SPLAY TREES
+A splay tree is a self-organizing data structure.
+Every operation on the tree causes a splay to happen.
+The splay moves the requested
+node to the root of the tree and partly rebalances it.
+.Pp
+This has the benefit that request locality causes faster lookups as
+the requested nodes move to the top of the tree.
+On the other hand, every lookup causes memory writes.
+.Pp
+The Balance Theorem bounds the total access time for
+.Ar m
+operations and
+.Ar n
+inserts on an initially empty tree as
+.Fn O "\*[lp]m + n\*[rp]lg n" .
+The
+amortized cost for a sequence of
+.Ar m
+accesses to a splay tree is
+.Fn O "lg n" .
+.Pp
+A splay tree is headed by a structure defined by the
+.Fn SPLAY_HEAD
+macro.
+A
+structure is declared as follows:
+.Bd -ragged -offset indent
+.Fn SPLAY_HEAD HEADNAME TYPE
+.Va head ;
+.Ed
+.Pp
+where
+.Fa HEADNAME
+is the name of the structure to be defined, and struct
+.Fa TYPE
+is the type of the elements to be inserted into the tree.
+.Pp
+The
+.Fn SPLAY_ENTRY
+macro declares a structure that allows elements to be connected in the tree.
+.Pp
+In order to use the functions that manipulate the tree structure,
+their prototypes need to be declared with the
+.Fn SPLAY_PROTOTYPE
+macro,
+where
+.Fa NAME
+is a unique identifier for this particular tree.
+The
+.Fa TYPE
+argument is the type of the structure that is being managed
+by the tree.
+The
+.Fa FIELD
+argument is the name of the element defined by
+.Fn SPLAY_ENTRY .
+.Pp
+The function bodies are generated with the
+.Fn SPLAY_GENERATE
+macro.
+It takes the same arguments as the
+.Fn SPLAY_PROTOTYPE
+macro, but should be used only once.
+.Pp
+Finally,
+the
+.Fa CMP
+argument is the name of a function used to compare tree nodes
+with each other.
+The function takes two arguments of type
+.Vt "struct TYPE *" .
+If the first argument is smaller than the second, the function returns a
+value smaller than zero.
+If they are equal, the function returns zero.
+Otherwise, it should return a value greater than zero.
+The compare
+function defines the order of the tree elements.
+.Pp
+The
+.Fn SPLAY_INIT
+macro initializes the tree referenced by
+.Fa head .
+.Pp
+The splay tree can also be initialized statically by using the
+.Fn SPLAY_INITIALIZER
+macro like this:
+.Bd -ragged -offset indent
+.Fn SPLAY_HEAD HEADNAME TYPE
+.Va head
+=
+.Fn SPLAY_INITIALIZER &head ;
+.Ed
+.Pp
+The
+.Fn SPLAY_INSERT
+macro inserts the new element
+.Fa elm
+into the tree.
+.Pp
+The
+.Fn SPLAY_REMOVE
+macro removes the element
+.Fa elm
+from the tree pointed by
+.Fa head .
+.Pp
+The
+.Fn SPLAY_FIND
+macro can be used to find a particular element in the tree.
+.Bd -literal -offset indent
+struct TYPE find, *res;
+find.key = 30;
+res = SPLAY_FIND(NAME, head, &find);
+.Ed
+.Pp
+The
+.Fn SPLAY_ROOT ,
+.Fn SPLAY_MIN ,
+.Fn SPLAY_MAX ,
+and
+.Fn SPLAY_NEXT
+macros can be used to traverse the tree:
+.Bd -literal -offset indent
+for (np = SPLAY_MIN(NAME, &head); np != NULL; np = SPLAY_NEXT(NAME, &head, np))
+.Ed
+.Pp
+Or, for simplicity, one can use the
+.Fn SPLAY_FOREACH
+macro:
+.Bd -ragged -offset indent
+.Fn SPLAY_FOREACH np NAME head
+.Ed
+.Pp
+The
+.Fn SPLAY_EMPTY
+macro should be used to check whether a splay tree is empty.
+.Sh RANK-BALANCED TREES
+Rank-balanced (RB) trees are a framework for defining height-balanced
+binary search trees, including AVL and red-black trees.
+Each tree node has an associated rank.
+Balance conditions are expressed by conditions on the differences in
+rank between any node and its children.
+Rank differences are stored in each tree node.
+.Pp
+The balance conditions implemented by the RB macros lead to weak AVL
+(wavl) trees, which combine the best aspects of AVL and red-black
+trees.
+Wavl trees rebalance after an insertion in the same way AVL trees do,
+with the same worst-case time as red-black trees offer, and with
+better balance in the resulting tree.
+Wavl trees rebalance after a removal in a way that requires less
+restructuring, in the worst case, than either AVL or red-black trees
+do.
+Removals can lead to a tree almost as unbalanced as a red-black
+tree; insertions lead to a tree becoming as balanced as an AVL tree.
+.Pp
+A rank-balanced tree is headed by a structure defined by the
+.Fn RB_HEAD
+macro.
+A
+structure is declared as follows:
+.Bd -ragged -offset indent
+.Fn RB_HEAD HEADNAME TYPE
+.Va head ;
+.Ed
+.Pp
+where
+.Fa HEADNAME
+is the name of the structure to be defined, and struct
+.Fa TYPE
+is the type of the elements to be inserted into the tree.
+.Pp
+The
+.Fn RB_ENTRY
+macro declares a structure that allows elements to be connected in the tree.
+.Pp
+In order to use the functions that manipulate the tree structure,
+their prototypes need to be declared with the
+.Fn RB_PROTOTYPE
+or
+.Fn RB_PROTOTYPE_STATIC
+macro,
+where
+.Fa NAME
+is a unique identifier for this particular tree.
+The
+.Fa TYPE
+argument is the type of the structure that is being managed
+by the tree.
+The
+.Fa FIELD
+argument is the name of the element defined by
+.Fn RB_ENTRY .
+Individual prototypes can be declared with
+.Fn RB_PROTOTYPE_INSERT ,
+.Fn RB_PROTOTYPE_INSERT_COLOR ,
+.Fn RB_PROTOTYPE_REMOVE ,
+.Fn RB_PROTOTYPE_REMOVE_COLOR ,
+.Fn RB_PROTOTYPE_FIND ,
+.Fn RB_PROTOTYPE_NFIND ,
+.Fn RB_PROTOTYPE_NEXT ,
+.Fn RB_PROTOTYPE_PREV ,
+.Fn RB_PROTOTYPE_MINMAX ,
+and
+.Fn RB_PROTOTYPE_REINSERT
+in case not all functions are required.
+The individual prototype macros expect
+.Fa NAME ,
+.Fa TYPE ,
+and
+.Fa ATTR
+arguments.
+The
+.Fa ATTR
+argument must be empty for global functions or
+.Fa static
+for static functions.
+.Pp
+The function bodies are generated with the
+.Fn RB_GENERATE
+or
+.Fn RB_GENERATE_STATIC
+macro.
+These macros take the same arguments as the
+.Fn RB_PROTOTYPE
+and
+.Fn RB_PROTOTYPE_STATIC
+macros, but should be used only once.
+As an alternative individual function bodies are generated with the
+.Fn RB_GENERATE_INSERT ,
+.Fn RB_GENERATE_INSERT_COLOR ,
+.Fn RB_GENERATE_REMOVE ,
+.Fn RB_GENERATE_REMOVE_COLOR ,
+.Fn RB_GENERATE_FIND ,
+.Fn RB_GENERATE_NFIND ,
+.Fn RB_GENERATE_NEXT ,
+.Fn RB_GENERATE_PREV ,
+.Fn RB_GENERATE_MINMAX ,
+and
+.Fn RB_GENERATE_REINSERT
+macros.
+.Pp
+Finally,
+the
+.Fa CMP
+argument is the name of a function used to compare tree nodes
+with each other.
+The function takes two arguments of type
+.Vt "struct TYPE *" .
+If the first argument is smaller than the second, the function returns a
+value smaller than zero.
+If they are equal, the function returns zero.
+Otherwise, it should return a value greater than zero.
+The compare
+function defines the order of the tree elements.
+.Pp
+The
+.Fn RB_INIT
+macro initializes the tree referenced by
+.Fa head .
+.Pp
+The rank-balanced tree can also be initialized statically by using the
+.Fn RB_INITIALIZER
+macro like this:
+.Bd -ragged -offset indent
+.Fn RB_HEAD HEADNAME TYPE
+.Va head
+=
+.Fn RB_INITIALIZER &head ;
+.Ed
+.Pp
+The
+.Fn RB_INSERT
+macro inserts the new element
+.Fa elm
+into the tree.
+.Pp
+The
+.Fn RB_INSERT_NEXT
+macro inserts the new element
+.Fa elm
+into the tree immediately after a given element.
+.Pp
+The
+.Fn RB_INSERT_PREV
+macro inserts the new element
+.Fa elm
+into the tree immediately before a given element.
+.Pp
+The
+.Fn RB_REMOVE
+macro removes the element
+.Fa elm
+from the tree pointed by
+.Fa head .
+.Pp
+The
+.Fn RB_FIND
+and
+.Fn RB_NFIND
+macros can be used to find a particular element in the tree.
+.Pp
+The
+.Fn RB_FIND
+macro returns the element in the tree equal to the provided
+key, or
+.Dv NULL
+if there is no such element.
+.Pp
+The
+.Fn RB_NFIND
+macro returns the least element greater than or equal to the provided
+key, or
+.Dv NULL
+if there is no such element.
+.Bd -literal -offset indent
+struct TYPE find, *res, *resn;
+find.key = 30;
+res = RB_FIND(NAME, head, &find);
+resn = RB_NFIND(NAME, head, &find);
+.Ed
+.Pp
+The
+.Fn RB_ROOT ,
+.Fn RB_MIN ,
+.Fn RB_MAX ,
+.Fn RB_NEXT ,
+and
+.Fn RB_PREV
+macros can be used to traverse the tree:
+.Pp
+.Dl "for (np = RB_MIN(NAME, &head); np != NULL; np = RB_NEXT(NAME, &head, np))"
+.Pp
+Or, for simplicity, one can use the
+.Fn RB_FOREACH
+or
+.Fn RB_FOREACH_REVERSE
+macro:
+.Bd -ragged -offset indent
+.Fn RB_FOREACH np NAME head
+.Ed
+.Pp
+The macros
+.Fn RB_FOREACH_SAFE
+and
+.Fn RB_FOREACH_REVERSE_SAFE
+traverse the tree referenced by head
+in a forward or reverse direction respectively,
+assigning each element in turn to np.
+However, unlike their unsafe counterparts,
+they permit both the removal of np
+as well as freeing it from within the loop safely
+without interfering with the traversal.
+.Pp
+Both
+.Fn RB_FOREACH_FROM
+and
+.Fn RB_FOREACH_REVERSE_FROM
+may be used to continue an interrupted traversal
+in a forward or reverse direction respectively.
+The head pointer is not required.
+The pointer to the node from where to resume the traversal
+should be passed as their last argument,
+and will be overwritten to provide safe traversal.
+.Pp
+The
+.Fn RB_EMPTY
+macro should be used to check whether a rank-balanced tree is empty.
+.Pp
+The
+.Fn RB_REINSERT
+macro updates the position of the element
+.Fa elm
+in the tree.
+This must be called if a member of a
+.Nm tree
+is modified in a way that affects comparison, such as by modifying
+a node's key.
+This is a lower overhead alternative to removing the element
+and reinserting it again.
+.Pp
+The
+.Fn RB_AUGMENT
+macro updates augmentation data of the element
+.Fa elm
+in the tree.
+By default, it has no effect.
+It is not meant to be invoked by the RB user.
+If
+.Fn RB_AUGMENT
+is defined by the RB user, then when an element is inserted or removed
+from the tree, it is invoked for every element in the tree that is the
+root of an altered subtree, working from the bottom of the tree up to
+the top.
+It is typically used to maintain some associative accumulation of tree
+elements, such as sums, minima, maxima, and the like.
+.Pp
+The
+.Fn RB_AUGMENT_CHECK
+macro updates augmentation data of the element
+.Fa elm
+in the tree.
+By default, it does nothing and returns false.
+If
+.Fn RB_AUGMENT_CHECK
+is defined, then when an element is inserted or removed from the tree,
+it is invoked for every element in the tree that is the root of an
+altered subtree, working from the bottom of the tree up toward the
+top, until it returns false to indicate that it did not change the
+element and so working further up the tree would change nothing.
+It is typically used to maintain some associative accumulation of tree
+elements, such as sums, minima, maxima, and the like.
+.Pp
+The
+.Fn RB_UPDATE_AUGMENT
+macro updates augmentation data of the element
+.Fa elm
+and its ancestors in the tree.
+If
+.Fn RB_AUGMENT
+is defined by the RB user, then when an element in the
+tree is changed, without changing the order of items in the tree,
+invoking this function on that element restores consistency of the
+augmentation state of the tree as if the element had been removed and
+inserted again.
+.Sh EXAMPLES
+The following example demonstrates how to declare a rank-balanced tree
+holding integers.
+Values are inserted into it and the contents of the tree are printed
+in order.
+To maintain the sum of the values in the tree, each element maintains
+the sum of its value and the sums from its left and right subtrees.
+Lastly, the internal structure of the tree is printed.
+.Bd -literal -offset 3n
+#define RB_AUGMENT(entry) sumaug(entry)
+
+#include <sys/tree.h>
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+struct node {
+	RB_ENTRY(node) entry;
+	int i, sum;
+};
+
+int
+intcmp(struct node *e1, struct node *e2)
+{
+	return (e1->i < e2->i ? -1 : e1->i > e2->i);
+}
+
+void
+sumaug(struct node *e)
+{
+	e->sum = e->i;
+	if (RB_LEFT(e, entry) != NULL)
+		e->sum += RB_LEFT(e, entry)->sum;
+	if (RB_RIGHT(e, entry) != NULL)
+		e->sum += RB_RIGHT(e, entry)->sum;
+}
+
+RB_HEAD(inttree, node) head = RB_INITIALIZER(&head);
+RB_GENERATE(inttree, node, entry, intcmp)
+
+int testdata[] = {
+	20, 16, 17, 13, 3, 6, 1, 8, 2, 4, 10, 19, 5, 9, 12, 15, 18,
+	7, 11, 14
+};
+
+void
+print_tree(struct node *n)
+{
+	struct node *left, *right;
+
+	if (n == NULL) {
+		printf("nil");
+		return;
+	}
+	left = RB_LEFT(n, entry);
+	right = RB_RIGHT(n, entry);
+	if (left == NULL && right == NULL)
+		printf("%d", n->i);
+	else {
+		printf("%d(", n->i);
+		print_tree(left);
+		printf(",");
+		print_tree(right);
+		printf(")");
+	}
+}
+
+int
+main(void)
+{
+	int i;
+	struct node *n;
+
+	for (i = 0; i < sizeof(testdata) / sizeof(testdata[0]); i++) {
+		if ((n = malloc(sizeof(struct node))) == NULL)
+			err(1, NULL);
+		n->i = testdata[i];
+		RB_INSERT(inttree, &head, n);
+	}
+
+	RB_FOREACH(n, inttree, &head) {
+		printf("%d\en", n->i);
+	}
+	print_tree(RB_ROOT(&head));
+	printf("\enSum of values = %d\en", RB_ROOT(&head)->sum);
+	return (0);
+}
+.Ed
+.Sh NOTES
+Trying to free a tree in the following way is a common error:
+.Bd -literal -offset indent
+SPLAY_FOREACH(var, NAME, head) {
+	SPLAY_REMOVE(NAME, head, var);
+	free(var);
+}
+free(head);
+.Ed
+.Pp
+Since
+.Va var
+is freed, the
+.Fn FOREACH
+macro refers to a pointer that may have been reallocated already.
+Proper code needs a second variable.
+.Bd -literal -offset indent
+for (var = SPLAY_MIN(NAME, head); var != NULL; var = nxt) {
+	nxt = SPLAY_NEXT(NAME, head, var);
+	SPLAY_REMOVE(NAME, head, var);
+	free(var);
+}
+.Ed
+.Pp
+Both
+.Fn RB_INSERT
+and
+.Fn SPLAY_INSERT
+return
+.Dv NULL
+if the element was inserted in the tree successfully, otherwise they
+return a pointer to the element with the colliding key.
+.Pp
+Accordingly,
+.Fn RB_REMOVE
+and
+.Fn SPLAY_REMOVE
+return the pointer to the removed element otherwise they return
+.Dv NULL
+to indicate an error.
+.Sh SEE ALSO
+.Xr arb 3 ,
+.Xr queue 3
+.Rs
+.%A "Bernhard Haeupler"
+.%A "Siddhartha Sen"
+.%A "Robert E. Tarjan"
+.%T "Rank-Balanced Trees"
+.%U "http://sidsen.azurewebsites.net/papers/rb-trees-talg.pdf"
+.%J "ACM Transactions on Algorithms"
+.%V "11"
+.%N "4"
+.%D "June 2015"
+.Re
+.Sh HISTORY
+The tree macros first appeared in
+.Fx 4.6 .
+.Sh AUTHORS
+The author of the tree macros is
+.An Niels Provos .