Install public version of windbg/cdb on windows helix machines

[kunalspathak]

• This issue is blocking
• This issue is causing unreasonable pain

It blocks are progress towards "merge-on-red" features dotnet/runtime#75243 and dotnet/runtime#77918.

Just as we installed llvm-symbolizer in #11631 on Ubuntu, we also need a public version of windbg/cdb installed on windows machines.

Release Note Category

• Feature changes/additions
• Bug fixes
• Internal Infrastructure Improvements

Release Note Description

Add public versions of Debugging Tools for Windows to Windows images

[kunalspathak]

@hoyosjs @tommcdon

[riarenas]

I'm removing the blocking checkbox, as a new feature can't be blocking by nature and will affect triage decisions.

[kunalspathak]

I'm removing the blocking checkbox, as a new feature can't be blocking by nature and will affect triage decisions.

Makes sense. :)

[MattGal]

@kunalspathak does this need to be on the path on said machines, or would it be acceptable in a static "classic" location like %SYSTEMDRIVE%;\debuggers ?

[kunalspathak]

@kunalspathak does this need to be on the path on said machines, or would it be acceptable in a static "classic" location like %SYSTEMDRIVE%;\debuggers ?

What do you think @hoyosjs?

[hoyosjs]

Not against it. One thought for @MattGal: how easy is it for y'all to have an environment variable that has such info. That way you can move it around without it needing to be in the path and we can find it easily.

[MattGal]

Being on the path / having a special "HELIX_DEBUGGER_FOLDER" variable shouldn't be terribly hard, but I'm trying to get some details before starting the work.

[MattGal]

It's gnarlier than I expected, but I put a first draft of this here; https://dev.azure.com/dnceng/internal/_git/dotnet-helix-machines/pullrequest/29281

[MattGal]

This is available and rolled out today, please let me know if you encounter issues.

[hoyosjs]

Reopening this issue since CDB isn't available in the windows.11.arm64 queue. I tried to see why, but I can't access imagefactory logs for that build anymore. Is this something folks can help with please?

[garath]

I see that cdb is installed on many queues, just not Win11 ARM. I'll start a PR to install and verify its operation.