Enabling Android ARM64 for .NET Core

[cydhaselton]

This issue will be a list of tasks necessary to enable Android ARM64 for .NET Core, in the style of Enabling Linux ARM32 for .NET Core. Please assign the arm64, os-android and os-unsupported labels, if appropriate.

References

• Android: Next Steps

Common

• Refactor/merge build-android-rootfs.sh for core-setup if necessary. Use updated build-android-rootfs.sh for arm64 and arm (PR Support compiling for ARM Android corefx#16819)
• Add necessary files and directories to support android cross-build
• Fix build-android-rootfs.sh so that it pulls latest package version.

CoreCLR

• Update CoreCLR to generate Android-specific (?) nuget packages of CoreCLR (ref: First step to create nuget packages for ARM32/Linux coreclr#8421, PR First steps for generating nuget packages for ARM64/Android. coreclr#10286)

CoreFX

• Add RID for Android (PR Add RIDs for Android corefx#16729)
• Update CoreFX to generate Android-specific (?) nuget packages of CoreFX

core-setup

• Add support for Android arm, arm64 RIDs (ref Add support for building ubuntu 16.10 and openSUSE 42.1 core-setup#254)
• Add support for Android arm64 build from sources

Porting To New Platform References

• dotnet/coreclr#917 (specifically this comment)
• dotnet/corefx#6770
• dotnet/corefx#15503
• dotnet/coreclr#6056
• Add support for building ubuntu 16.10 and openSUSE 42.1 core-setup#254

cc\ @qmfrederik

[cydhaselton]

UPDATE: CoreCLR .nuget package PR merged. Moving to CoreFX .nuget package builds

[thebestnom]

It looks like a lot of it is done, can someone update this?

[nxrighthere]

I would like to see an update for this issue, please?

[ViktorHofer]

@marek-safar @steveisok can you please update this issue based on the work that your team has done in the last months?

[marek-safar]

I think we can close this issue as most of the infrastructure tasks have been completed. The plan is for .NET6 to officially support Android but the foundational pieces are all already in and we do run on Android dotnet/runtime PR changes today.

[qmfrederik]

@marek-safar Just to be sure, does this include support for running .NET console apps (e.g. via adb shell or Termux) on Android?

[marek-safar]

This issue does not cover .NET SDK or CLI integration and that part is planned for .NET6.

[qmfrederik]

This issue was opened (at the time) with Android CLI integration in mind.

That scenario worked at one point in time. You could dotnet publish a Hello World console app which targeted android-arm64 and run it via adb shell.

If the issue has been recycled to track something else, it may be worth to mention that in a comment or the description.

[marek-safar]

What I meant by CLI integration is smoother dev experience when targeting Android. You can do dotnet publish and manual adb shell today but that's not where we would like to land.

[marek-safar]

This will be addressed as part of #44654