'Exec format error' when running global tool on ARM32

Installing a global tool on ARM32 doesn’t run. Fails with cannot execute binary file: Exec format error.

Repro Steps

1. Requirement - run from an ARM32 machine.
2. docker run -it --rm mcr.microsoft.com/dotnet/core/sdk:3.0
3. dotnet tool install --tool-path /mytool <some tool>
4. cd /mytool
5. execute installed tool

Results

cannot execute binary file: Exec format error`

Expected Results

The tool should run

Observations

1. I verified this scenario works for 2.1 but not 3.0.
2. The app will run if you path down to the .store/…/tools folder and run dotnet/tool.dll
3. This was discovered with testing installing PowerShell as a global tool - https://github.com/dotnet/dotnet-docker/pull/960#discussion_r266060183. PowerShell in this case is built against 2.1 but has a custom roll forward policy defined - https://github.com/dotnet/core-setup/blob/master/Documentation/design-docs/roll-forward-on-no-candidate-fx.md. I don’t know if that is a factor or not. It works just find in amd64.

[richlander]

I just tried running a tool on ARM32 (no containers). It works.

The issue I linked to is also resolved.

[wli3]

sorry i have no update. I’ll look into it today