Support Apple Silicon Diagnostics

[tommcdon]

Our goal is to deliver parity with osx-x64 for apple silicon diagnosics.

• Implement ICorDebug APIs
• Test ICorProfiler APIs
• SOS support

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Issue Details

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• Implement ICorDebug APIs
• Implement ICorProfiler APIs
• SOS support

Author:	tommcdon
Assignees:	-
Labels:	area-Diagnostics-coreclr
Milestone:	6.0.0

[tommcdon]

Debugger API's completed on #47834, #42105

SOS supports Apple Silicon.

[sdmaclea]

I am not aware of any missing profiler code in the runtime. The runtime profiler tests mostly just pass. Our internal profiler tests have not been run successfully yet, but that may or may not be a runtime issue.

/cc @davmason

[davmason]

The only feature that requires platform specific changes should be ELT hooks, everything else should be portable. We do run in to the issue where new platforms often require new APIs to handle different behavior - i.e. on Linux/Mac due to the way we cache environment variables in the PAL we had to add profiler APIs to set and get environment variables. I don't anticipate any of those for Apple Silicon, but it's a risk we run by not validating the scenario. I think it's the right risk to take, but worth calling out.

[k15tfu]

BTW, I'm not aware of any issues with Profiling API on Apple Silicon (incl. ELT hooks).

[sdmaclea]

@k15tfu Thanks.

I think the only known issue is that our internal profiler tests are not running yet. So there is a potential of an issue.

[tommcdon]

We have minimal testing in the runtime repo.