mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-13 10:02:38 +00:00
95 lines
3.0 KiB
Groff
95 lines
3.0 KiB
Groff
.\" $Id$
|
|
.\"
|
|
.\" 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.
|
|
.\"
|
|
.\" @(#)minherit.2 8.1 (Berkeley) 6/9/93
|
|
.\"
|
|
.Dd Feb 17, 1996
|
|
.Dt MINHERIT 2
|
|
.Os
|
|
.Sh NAME
|
|
.Nm minherit
|
|
.Nd control the inheritance of pages
|
|
.Sh SYNOPSIS
|
|
.Fd #include <sys/types.h>
|
|
.Fd #include <sys/mman.h>
|
|
.Ft int
|
|
.Fn minherit "caddr_t addr" "size_t len" "int inherit"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn minherit
|
|
system call
|
|
changes the specified pages to have the inheritance characteristic
|
|
.Fa inherit .
|
|
Not all implementations will guarantee that the inheritance characteristic
|
|
can be set on a page basis;
|
|
the granularity of changes may be as large as an entire region.
|
|
.Sh RETURN VALUES
|
|
Upon successful completion,
|
|
.Fn minherit
|
|
returns 0. Otherwise, a value of -1 is returned and
|
|
.Va errno
|
|
is set to indicate the error.
|
|
.Sh ERRORS
|
|
The
|
|
.Fn minherit
|
|
function will fail if:
|
|
.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 EACESS
|
|
The flags specified by the
|
|
.Fa inherit
|
|
argument were not valid for the pages specified
|
|
by the
|
|
.Fa addr
|
|
and
|
|
.Fa len
|
|
arguments.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr fork 2 ,
|
|
.Xr madvise 2 ,
|
|
.Xr mincore 2 ,
|
|
.Xr mprotect 2 ,
|
|
.Xr msync 2 ,
|
|
.Xr munmap 2 ,
|
|
.Xr rfork 2
|
|
.Sh HISTORY
|
|
The
|
|
.Fn minherit
|
|
function first appeared in OpenBSD.
|