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.\" $OpenBSD: arch.1,v 1.9 2007/05/31 19:20:07 jmc Exp $
.\"
.\" Copyright (c) 1994 SigmaSoft, Th. Lockert
.\" 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 ``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.
.\"
.\" $OpenBSD: arch.1,v 1.9 2007/05/31 19:20:07 jmc Exp $
.\"
.Dd $Mdocdate: May 31 2007 $
.Dt ARCH 1
.Os
.Sh NAME
.Nm arch ,
.Nm machine
.Nd print architecture type
.Sh SYNOPSIS
.Nm arch
.Op Fl ks
.Nm machine
.Op Fl a
.Sh DESCRIPTION
The
.Nm arch
and
.Nm machine
commands display the machine's architecture in slightly different ways.
.Nm arch
by default displays the application architecture, defined by both the
operating system and the instruction set architecture, while
.Nm machine
displays the kernel architecture (without the operating system part).
Note that both commands output the target architecture as opposed to
.Xr uname 1
which describes the host.
This is useful for dynamic discovery
of the target architecture in build or configuration scripts
needing to work in cross-compilation environments.
.Pp
The options for
.Nm arch
are as follows:
.Bl -tag -width indent
.It Fl k
Display the kernel architecture instead of application
architecture.
.It Fl s
Display the chosen architecture in a short form, i.e., without the
operating system prefixed.
.El
.Pp
The options for
.Nm machine
are as follows:
.Bl -tag -width indent
.It Fl a
Display the application architecture instead of the kernel architecture.
.El
.Sh SEE ALSO
.Xr uname 1
|
