Debugger works fine on Intel Mac but not on Silicon

[pmeheut]

Hi. I'm using free-vscode-csharp v2.61.28 with Windsurf and Cursor.
It works fine on my Intel Mac.

But on my Silicon Mac under Sequoia 15.3.1, it launches the code, displays everything but not thread, variable or so appear.
Using ps -ef I can see that dotnet is launched with my dll but stopped: even with an invalid path, it stays there, displaying no error.
I have to kill -9 it.

Help?

[rodcoura]

Looks like the netcoredbg does not work with Apple Silicon devices, looks like we have to build and link into the extension, I dont know how, maybe put on /usr/bin/netcoredbg ?

[steel97]

I made github actions workflow which build arm64 macos binaries of netcoredbg, you can either download from here:
https://github.com/steel97/netcoredbg/actions/runs/17512042883
or clone netcoredbg repo, and use workflow file: https://github.com/steel97/netcoredbg/blob/macos-arm64-workflow/.github/workflows/build.yaml

upd:
I also made an netcoredbg-build repository, which able to clone any tag of samsung/netcoredbg and build it for windows/linux x86_64 and macos arm64:
https://github.com/steel97/netcoredbg-builder

Currently I think the only working way to override x86_64 binaries of netcoredbg used by extension is to replace files located at:
/Users/$USER/.vscode-oss/extensions/muhammad-sammy.csharp-2.84.19-universal/.debugger/netcoredbg

Works as expected with arm64 binaries:

ivan@Mac ~ % uname -a
Darwin Mac 24.6.0 Darwin Kernel Version 24.6.0: Mon Jul 14 11:29:54 PDT 2025; root:xnu-11417.140.69~1/RELEASE_ARM64_T8122 arm64
ivan@Mac ~ % dotnet --version
8.0.404
ivan@Mac ~ % 

However It would be nice, if extension allow overriding netcoredbg path from settings

[alex-jitbit]

Maybe we could just add this to package.json:

{
  "id": "Debugger",
  "description": ".NET Core Debugger (macOS / arm64)",
  "url": "https://github.com/steel97/netcoredbg-builder/releases/download/master/netcoredbg-macos-aarch64.zip",
  "installPath": ".debugger",
  "platforms": [
    "darwin"
  ],
  "architectures": [
    "arm64"
  ],
  "binaries": [
    "./netcoredbg"
  ],
  "installTestPath": ".debugger/netcoredbg/netcoredbg"
}

So it simply takes the arm version provided by @steel97

I'm sorry, I'm not really familiar with VSCode extension architecture, just a suggestion...

[MihaiStrejer]

Support for arm debug would really be nice, both for macos and windows arm64 so we don't need to manually compile it. For those that need it today DotRush extension offers it.

[alex-jitbit]

Or maybe use this: https://github.com/MattParkerDev/sharpdbg