Cross compiling Go 1.8.3 for Pine64 Pinebook
By R. S. Doiel 2017-06-16
Pine64’s Pinebook has a 64-bit Quad-Core ARM Cortex A53 which is not the same ARM processor found on a Raspberry Pi 3. As a result it needs its own compiled version of Go. Fortunately cross compiling Go is very straight forward. I found two helpful Gists on GitHub discussing compiling Go for a 64-Bit ARM processor.
I am using a Raspberry Pi 3, raspberrypi.local, as my cross compile host. Go 1.8.3 is already compiled and available. Inspired by the gists I worked up with this recipe to bring a Go 1.8.3 to my Pinebook.
cd mkdir -p gobuild cd gobuild git clone https://github.com/golang/go.git go1.8.3 cd go1.8.3 git checkout go1.8.3 export GOHOSTARCH=arm export GOARCH=arm64 export GOOS=linux cd src ./bootstrap.bash
After the bootstrap compile is finished I switch to my Pinebook, copy the bootstrap compiler to my Pinebook and use it to compile a new go1.8.3 for Pine64.
cd scp -r raspberrypi.local:gobuild/*.tbz ./ tar jxvf go-linux-arm64-bootstrap.tbz export GOROOT=go-linux-arm64-bootstrap go-linux-arm64-bootstrap/bin/go version unset GOROOT git clone https://github.com/golang/go cd go git checkout go1.8.3 export GOROOT_BOOTSTRAP=$HOME/go-linux-arm64-bootstrap cd src ./all.bash
all.bash will successfully compile go and gofmt but fail on the tests. It’s not perfect but appears to work as I explore building Go applications on my Pinebook. Upcoming Go releases should provide better support for 64 bit ARM.