freebsd/lib/libc/sys/mincore.2

.\" 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:
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.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
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.\" 3. All advertising materials mentioning features or use of this software
.\"    must display the following acknowledgement:
.\"	This product includes software developed by the University of
.\"	California, Berkeley and its contributors.
.\" 4. 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.
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.\" 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.
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.\"	@(#)mincore.2	8.1 (Berkeley) 6/9/93
.\" $FreeBSD$
.\"
.Dd June 9, 1993
.Dt MINCORE 2
.Os
.Sh NAME
.Nm mincore
.Nd get advice about use of memory
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In sys/mman.h
.Ft int
.Fn mincore "const void *addr" "size_t len" "char *vec"
.Sh DESCRIPTION
The
.Fn mincore
system call
allows a process to obtain information about whether pages are
core resident.
Here the current core residency of the pages is returned
in the character array
.Fa vec ,
with a value of 1 meaning
that the page is in-core.
.Sh RETURN VALUES
.Rv -std mincore
.Sh ERRORS
.Bl -tag -width Er
.It Bq Er EINVAL
The virtual address range specified by the
.Fa addr
and
.Fa len
arguments is not valid.
.It Bq Er EFAULT
The
.Fa vec
argument points to an illegal address.
.El
.Sh BUGS
This man page is incorrect.
The vector description is wrong.
.Sh SEE ALSO
.Xr madvise 2 ,
.Xr mprotect 2 ,
.Xr msync 2 ,
.Xr munmap 2
.Sh HISTORY
The
.Fn mincore
function first appeared in
.Bx 4.4 .
BSD 4.4 Lite Lib Sources 1994-05-27 05:00:24 +00:00			`.\" 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. All advertising materials mentioning features or use of this software`
			`.\" must display the following acknowledgement:`
			`.\" This product includes software developed by the University of`
			`.\" California, Berkeley and its contributors.`
			`.\" 4. 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.`
			`.\"`
			`.\" @(#)mincore.2 8.1 (Berkeley) 6/9/93`
$Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00			`.\" $FreeBSD$`
BSD 4.4 Lite Lib Sources 1994-05-27 05:00:24 +00:00			`.\"`
			`.Dd June 9, 1993`
			`.Dt MINCORE 2`
			`.Os`
			`.Sh NAME`
			`.Nm mincore`
Spelling nits. Pointed out by: Sue Blake <sue@welearn.com.au> 1998-06-06 04:56:13 +00:00			`.Nd get advice about use of memory`
Introduce ".Lb" macro to libc manpages. More libraries manpages updates following. 2000-04-21 09:42:15 +00:00			`.Sh LIBRARY`
			`.Lb libc`
BSD 4.4 Lite Lib Sources 1994-05-27 05:00:24 +00:00			`.Sh SYNOPSIS`
mdoc(7) police: Use the new .In macro for #include statements. 2001-10-01 16:09:29 +00:00			`.In sys/mman.h`
Minor mdoc fixes in msync.2 and munmap.2. Add RETURN VALUES and ERRORS sections to mincore. Closes PR# 1493. 1997-01-11 23:33:18 +00:00			`.Ft int`
Convert caddr_t --> void * for sys/mman.h functions. mlock, mmap, mprotect, msync, munlock, and munmap are defined by POSIX as taking void . The const modifier has been added to mlock, munlock, and mprotect as the standard dictates. minherit comes from OpenBSD and has been updated to conform with their recent change to void . madvise and mincore are not defined by POSIX, but their arguments have been modified to be consistent with the POSIX-defined functions. mincore takes a const pointer, but madvise does not due to the MADV_FREE case. Discussed with: bde 1997-12-31 01:22:01 +00:00			`.Fn mincore "const void addr" "size_t len" "char vec"`
BSD 4.4 Lite Lib Sources 1994-05-27 05:00:24 +00:00			`.Sh DESCRIPTION`
			`The`
			`.Fn mincore`
			`system call`
			`allows a process to obtain information about whether pages are`
			`core resident.`
			`Here the current core residency of the pages is returned`
			`in the character array`
			`.Fa vec ,`
			`with a value of 1 meaning`
			`that the page is in-core.`
Minor mdoc fixes in msync.2 and munmap.2. Add RETURN VALUES and ERRORS sections to mincore. Closes PR# 1493. 1997-01-11 23:33:18 +00:00			`.Sh RETURN VALUES`
Use the ".Rv" mdoc(7) macro where appropriate. Reviewed by: ru 2001-08-14 14:20:35 +00:00			`.Rv -std mincore`
Minor mdoc fixes in msync.2 and munmap.2. Add RETURN VALUES and ERRORS sections to mincore. Closes PR# 1493. 1997-01-11 23:33:18 +00:00			`.Sh ERRORS`
			`.Bl -tag -width Er`
			`.It Bq Er EINVAL`
Correct a typo. Submitted by: peter.kusenda@accenture.com 2002-03-09 07:05:22 +00:00			`The virtual address range specified by the`
Minor mdoc fixes in msync.2 and munmap.2. Add RETURN VALUES and ERRORS sections to mincore. Closes PR# 1493. 1997-01-11 23:33:18 +00:00			`.Fa addr`
			`and`
			`.Fa len`
			`arguments is not valid.`
			`.It Bq Er EFAULT`
			`The`
			`.Fa vec`
			`argument points to an illegal address.`
			`.El`
Note that the manpage is incorrect about the vector argument. 2001-11-09 01:01:50 +00:00			`.Sh BUGS`
			`This man page is incorrect.`
			`The vector description is wrong.`
BSD 4.4 Lite Lib Sources 1994-05-27 05:00:24 +00:00			`.Sh SEE ALSO`
			`.Xr madvise 2 ,`
comma typos 1996-12-23 23:09:55 +00:00			`.Xr mprotect 2 ,`
			`.Xr msync 2 ,`
			`.Xr munmap 2`
BSD 4.4 Lite Lib Sources 1994-05-27 05:00:24 +00:00			`.Sh HISTORY`
			`The`
			`.Fn mincore`
Correctly use .Fn instead of .Nm to reference function names in a bunch of man pages. Use the correct .Bx (BSD UNIX) or .At (AT&T UNIX) macros instead of explicitly specifying the version in the text in a bunch of man pages. 1996-08-22 23:31:07 +00:00			`function first appeared in`
			`.Bx 4.4 .`