diff --git a/share/man/man3/pthread_barrierattr.3 b/share/man/man3/pthread_barrierattr.3
index 74c3c4f63335..3836186ef4fd 100644
--- a/share/man/man3/pthread_barrierattr.3
+++ b/share/man/man3/pthread_barrierattr.3
@@ -1,135 +1,139 @@
 .\" 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.
 .\"
 .\" $FreeBSD$
 .\"
 .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
-.Fn pthread_barrierattr_getpshared "const pthread_barrierattr_t *restrict attr" "int *restrict pshared"
+.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
-.Fn pthread_barrierattr_setpshared "pthread_barrierattr_t *attr" "int pshared"
+.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/share/man/man3/pthread_condattr.3 b/share/man/man3/pthread_condattr.3
index dfabc6f10f37..b2f14c5452d0 100644
--- a/share/man/man3/pthread_condattr.3
+++ b/share/man/man3/pthread_condattr.3
@@ -1,162 +1,166 @@
 .\" 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.
 .\"
 .\" $FreeBSD$
 .Dd May 31, 2016
 .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
-.Fn pthread_condattr_getclock "pthread_condattr_t * restrict attr" "clockid_t * restrict clock_id"
+.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
-.Fn pthread_condattr_getpshared "pthread_condattr_t * restrict attr" "int * restrict pshared"
+.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)
 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
 .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 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/share/man/man3/pthread_mutexattr.3 b/share/man/man3/pthread_mutexattr.3
index 61773a4e2eb3..1afde4302457 100644
--- a/share/man/man3/pthread_mutexattr.3
+++ b/share/man/man3/pthread_mutexattr.3
@@ -1,219 +1,227 @@
 .\" 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.
 .\"
 .\" $FreeBSD$
 .Dd August 17, 2018
 .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_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
-.Fn pthread_mutexattr_setprioceiling "pthread_mutexattr_t *attr" "int prioceiling"
+.Fo pthread_mutexattr_setprioceiling
+.Fa "pthread_mutexattr_t *attr" "int prioceiling"
+.Fc
 .Ft int
-.Fn pthread_mutexattr_getprioceiling "const pthread_mutexattr_t *attr" "int *prioceiling"
+.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
-.Fn pthread_mutexattr_getprotocol "const pthread_mutexattr_t *restrict attr" "int *restrict protocol"
+.Fo pthread_mutexattr_getprotocol
+.Fa "const pthread_mutexattr_t *restrict attr" "int *restrict protocol"
+.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
-.Fn pthread_mutexattr_gettype "const pthread_mutexattr_t *restrict attr" "int *restrict type"
+.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_set*
 functions set the attribute that corresponds to each function name.
 .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_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 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_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/share/man/man3/pthread_rwlockattr_getpshared.3 b/share/man/man3/pthread_rwlockattr_getpshared.3
index 63ef52409392..8e65be3ce391 100644
--- a/share/man/man3/pthread_rwlockattr_getpshared.3
+++ b/share/man/man3/pthread_rwlockattr_getpshared.3
@@ -1,86 +1,88 @@
 .\" 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.
 .\"
 .\" $FreeBSD$
 .\"
 .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
-.Fn pthread_rwlockattr_getpshared "const pthread_rwlockattr_t *restrict attr" "int *restrict pshared"
+.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 .