# on a plan9/386 machine

git clone -b go1.4.3 https://go.googlesource.com/go /tmp/go1.4
cd /tmp/go1.4
hget http://9legacy.org/go/patch/syscall-exec.diff | ape/patch -p1
cd src
make.rc

git clone https://go.googlesource.com/go /tmp/go
cd /tmp/go/src
GOROOT_BOOTSTRAP=/tmp/go1.4 GOARCH=arm GOARM=7 make.rc

cd /tmp/go/bin
mkdir plan9_386
mv go gofmt plan9_386
cp plan9_arm/* .

# on a plan9/arm machine

bind -a /tmp/go/bin /bin

# Finally, you can use this toolchain to boostrap Go on plan9/arm.