From: Kai Backman <kaib@golang.org>
Date: Wed, 3 Feb 2010 02:09:07 +0000 (-0800)
Subject: added note about the GOARM env variable
X-Git-Tag: weekly.2010-02-04~22
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=cd4a684214f5396c860e4f8ee16fc2d4b928c14e;p=gostls13.git

added note about the GOARM env variable

R=rsc, r
CC=golang-dev
https://golang.org/cl/198074
---

diff --git a/doc/install.html b/doc/install.html
index 5e2cd757f7..6321ce726e 100644
--- a/doc/install.html
+++ b/doc/install.html
@@ -86,6 +86,17 @@ plus one optional variable:</p>
 	After installing, you will want to arrange to add this
 	directory to your <code>$PATH</code>, so you can use the tools.
 </dd>
+
+<dt>
+<code>$GOARM</code> (optional, arm, default=6)
+</dt>
+<dd>
+	The ARM architecture version the runtime libraries should target.
+	ARMv6 cores have more efficient synchronization primitives. Setting
+	<code>$GOARM</code> to 5 will compile the runtime libraries using
+	just SWP instructions that work on older architectures as well.
+	Running v6 code on an older core will cause an illegal instruction trap.
+</dd>
 </dl>
 
 <p>