dotnet run fails on ARM64

dotnet run doesn’t work for me on Linux ARM64.

/cc @livarcocc @RussKeldorph

rich@live-pc:~/testapp$ uname -a
Linux live-pc 3.10.105-bsp-1.2 dotnet/sdk#4284 SMP PREEMPT Sat Oct 27 19:24:05 IST 2018 aarch64 aarch64 aarch64 GNU/Linux
rich@live-pc:~/testapp$ lsb_release -a
No LSB modules are available.
Distributor ID: neon
Description:    KDE neon User Edition 5.14
Release:        18.04
Codename:       bionic
rich@live-pc:~$ time dotnet new console -o testapp
The template "Console Application" was created successfully.

Processing post-creation actions...
Running 'dotnet restore' on testapp/testapp.csproj...
  Restoring packages for /home/rich/testapp/testapp.csproj...
  Generating MSBuild file /home/rich/testapp/obj/testapp.csproj.nuget.g.props.
  Generating MSBuild file /home/rich/testapp/obj/testapp.csproj.nuget.g.targets.
  Restore completed in 2 sec for /home/rich/testapp/testapp.csproj.

Restore succeeded.


real    0m17.732s
user    0m23.360s
sys     0m1.910s
rich@live-pc:~$ cd testapp/
rich@live-pc:~/testapp$ time dotnet build
Microsoft (R) Build Engine version 15.9.8-preview+g0a5001fc4d for .NET Core
Copyright (C) Microsoft Corporation. All rights reserved.

  Restore completed in 342.77 ms for /home/rich/testapp/testapp.csproj.
/usr/share/dotnet/sdk/3.0.100-alpha1-009697/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.RuntimeIdentifierInference.targets(142,5): message NETSDK1057: You are using a preview version of .NET Core. See: https://aka.ms/dotnet-core-preview [/home/rich/testapp/testapp.csproj]
  testapp -> /home/rich/testapp/bin/Debug/netcoreapp3.0/testapp.dll

Build succeeded.                                             
    0 Warning(s)
    0 Error(s)

Time Elapsed 00:00:21.04

real    0m25.204s
user    0m25.080s
sys     0m2.180s
rich@live-pc:~/testapp$ time dotnet run
System.ComponentModel.Win32Exception (8): Exec format error
   at Interop.Sys.ForkAndExecProcess(String filename, String[] argv, String[] envp, String cwd, Boolean redirectStdin, Boolean redirectStdout, Boolean redirectStderr, Boolean setUser, UInt32 userId, UInt32 groupId, Int32& lpChildPid, Int32& stdinFd, Int32& stdoutFd, Int32& stderrFd, Boolean shouldThrow) 
   at System.Diagnostics.Process.StartCore(ProcessStartInfo startInfo)
   at System.Diagnostics.Process.Start()
   at Microsoft.DotNet.Cli.Utils.Command.Execute()
   at Microsoft.DotNet.Tools.Run.RunCommand.Execute()
   at Microsoft.DotNet.Tools.Run.RunCommand.Run(String[] args)
   at Microsoft.DotNet.Cli.Program.ProcessArgs(String[] args, ITelemetry telemetryClient)
   at Microsoft.DotNet.Cli.Program.Main(String[] args)

real    0m17.997s
user    0m23.190s
sys     0m2.150s
rich@live-pc:~/testapp$ time dotnet bin/Debug/netcoreapp3.0/testapp.dll
Hello World!

real    0m0.682s
user    0m0.570s
sys     0m0.060s
rich@live-pc:~/testapp$

[richlander]

I validated that this bug is now fixed, with 3.0.100-preview-009762.

[peterhuene]

This should now be fixed in 3.0.100-preview-009738. I don’t have an ARM device at the ready to test, but I did verify that the RID was correct in the bundled versions props file for arm tar.gz.