Author: danfe (ports committer)
Date: Wed May 31 03:44:31 2017
New Revision: 319274
URL: https://svnweb.freebsd.org/changeset/base/319274
Log:
- Add a simple example to uname(1) manual page to show how the hardware
platform (returned by -m) can be different from the machine's processor
architecture (-p)
- Document that make(1) sets universal MACHINE and MACHINE_ARCH variables
based on these values
Reviewed by: imp, manpages (bjk)
Approved by: bjk, imp (implied)
Differential Revision: https://reviews.freebsd.org/D10489
Modified:
head/usr.bin/uname/uname.1
Modified: head/usr.bin/uname/uname.1
==============================================================================
--- head/usr.bin/uname/uname.1 Wed May 31 03:11:25 2017 (r319273)
+++ head/usr.bin/uname/uname.1 Wed May 31 03:44:31 2017 (r319274)
@@ -28,7 +28,7 @@
.\" @(#)uname.1 8.3 (Berkeley) 4/8/94
.\" $FreeBSD$
.\"
-.Dd November 20, 2013
+.Dd May 31, 2017
.Dt UNAME 1
.Os
.Sh NAME
@@ -61,6 +61,11 @@ Write the
version of the kernel.
.It Fl m
Write the type of the current hardware platform to standard output.
+.Po Xr make 1
+uses it to set the
+.Va MACHINE
+variable.
+.Pc
.It Fl n
Write the name of the system to standard output.
.It Fl o
@@ -69,6 +74,11 @@ This is a synonym for the
option, for compatibility with other systems.
.It Fl p
Write the type of the machine processor architecture to standard output.
+.Po Xr make 1
+uses it to set the
+.Va MACHINE_ARCH
+variable.
+.Pc
.It Fl r
Write the current release level of the operating system
to standard output.
@@ -106,6 +116,19 @@ will allow the corresponding data to be set to the con
of the environment variable.
.Sh EXIT STATUS
.Ex -std
+.Sh EXAMPLES
+The hardware platform
+.Pq Fl m
+can be different from the machine's processor architecture
+.Pq Fl p ,
+e.g., on 64-bit PowerPC,
+.Fl m
+would return
+.Va powerpc
+and
+.Fl p
+would return
+.Va powerpc64 .
.Sh SEE ALSO
.Xr feature_present 3 ,
.Xr getosreldate 3 ,
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