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| -rw-r--r-- | doc/install.html | 11 |
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diff --git a/doc/install.html b/doc/install.html index 5e2cd757f..6321ce726 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> |