[Feature Request] buildkite agent for windows arm64 (Windows on ARM)

[ghuntley]

ie. https://docs.microsoft.com/en-us/windows/arm/ <3

[yob]

We're keen to support arm on various operating systems, however no one on staff at Buildkite is very familiar with arm+windows.

Do you have a windows+arm machine/instance handy @ghuntley?

Our support will depend on golang's support for windows+arm64 as a compilation target. A low-knowledge test suggests maybe that's still coming?

# default compilation target on linux compiles
$ go build -o ./buildkite-agent .

# windows/arm supported
$ GOOS=windows GOARCH=arm go build -o ./buildkite-agent .

# windows/arm64 not supported
$ GOOS=windows GOARCH=arm64 go build -o ./buildkite-agent .
cmd/go: unsupported GOOS/GOARCH pair windows/arm64

[keithduncan]

This is workable now with golang 1.17.

If possible we’d like to build Windows/arm64 with the newer version of go but keep other OS/arch pairs on their current version, specifically macOS for which a golang major version bump of 1.16 -> 1.17 means dropping old operating systems.

An update to the golang.org/x/sys package is also required to get this building.

[yob]

If possible we’d like to build Windows/arm64 with the newer version of go but keep other OS/arch pairs on their current version, specifically macOS for which a golang major version bump of 1.16 -> 1.17 means dropping old operating systems.

There's prior art for this in the git history - we originally built a binary for m1 macs using a differnet version of golang to the stable version that built every other binary.