architecture is "x86' on arm

[moozzyk]

To determine OS architecture we just check the size of the pointer (

dnx/src/dnx.host/RuntimeEnvironment.cs

Line 21 in 32358ec

RuntimeArchitecture = IntPtr.Size == 8 ? "x64" : "x86";

). As a result Win10 IoT one core on ARM is retported to be x86.

[BrennanConroy]

Here too if we run tests on arm:

dnx/test/dnx.host.Tests/RuntimeEnvironmentTests.cs

Line 42 in 32358ec

var runtimeArchitecture = IntPtr.Size == 8 ? "x64" : "x86";

[moozzyk]

And in kestrel where we use it to determine where to load libuv.dll.

[analogrelay]

Shouldn't the native bootstrapper just pass this data in and the managed code just read it rather than trying to redetect it? The bootstrapper is unique per architecture and OS (and there's a bootstrapper for Mono too).

[moozzyk]

Possibly. Might part of #1970

[muratg]

@DamianEdwards is ARM in scope for V1?

cc @davidfowl @Eilon @danroth27

Also see aspnet/KestrelHttpServer#106

[moozzyk]

We seem to be doing this now only in one place: https://github.com/aspnet/dnx/blob/dev/src/Microsoft.Dnx.Loader/LoadContext.cs#L71

[davidfowl]

Do we still need this?

[moozzyk]

Possibly - depending on what happens with LoadContext and if ARM is going to be officially supported.