[DevOps] Add CI for ARM

[adamsitnik]

I want to implement ARM support for BDN. I love our CI and I think it would be great to add ARM platform to make sure it works.

@Ky7m do you know how hard would be adding an ARM build?

[Ky7m]

Great, @adamsitnik, give me some time to investigate available options.

[Ky7m]

As a first step, it's possible to build on emulated ARM through Travis. The second step is to connect another CI service with ARM based agents, e.g. Shippable http://docs.shippable.com/platform/tutorial/workflow/run-ci-builds-on-arm/

[adamsitnik]

@Ky7m big thanks for the research!

I can see that shippable offers a free CI for public projects: https://www.shippable.com/pricing.html

However, I am not sure if we really want to have 4th CI? I would love to have ARM builds running, however, I am not sure if the complexity and effort are worth it. Maybe we should just wait until ARM is added to one of the CIs that we already use? @Ky7m what do you think?

[Ky7m]

@adamsitnik, I think we can add shippable CI platform. It should be easy, also we have another option that is based on emulation of ARM builds on Travis. Let me start with the first one and check what we can achieve.

[Ky7m]

@adamsitnik just let you know that I started working on arm builds https://cloud.drone.io/Ky7m/BenchmarkDotNet/49/1/2
so will keep you posted

[adamsitnik]

@Ky7m awesome!

SpecifiedProccesorArchitectureMustBeRespected fails because we most probably set a wrong architecture (x64), instead of ARM64.

[adamsitnik]

BenchmarkDotNet/tests/BenchmarkDotNet.IntegrationTests/ProcessorArchitectureTest.cs

Line 31 in fd0b8c0

Verify(Platform.X64, typeof(X64Benchmark), X64FailedCaption);

this should be conditional - if ARM, use ARM64, if not use x64

[Ky7m]

Sure, I will check it, because now it is configured only for ARM32.