[MulticoreJIT] Single file deployment does not support ProfileOptimization

[FixBo]

Create app with profile enable

ProfileOptimization.SetProfileRoot(AppDomain.CurrentDomain.BaseDirectory);
ProfileOptimization.StartProfile("profile");

Publish as selfcontained single file

dotnet publish --sc -p:PublishSingleFile=true

Run application

The "profile" is created with a size of only 64 bytes

According to my research, it's because of this check

runtime/src/coreclr/vm/multicorejitplayer.cpp

Line 452 in 19da949

if (pPEAssembly->GetPath().IsEmpty()) // Ignore in-memory modules

[dotnet-policy-service]

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[agocke]

The "profile" is created with a size of only 64 bytes
According to my research, it's because of this check

Yup, looks likely. At the moment I would say that it's not supported w/ single-file. I can't promise we'll get to this any time soon.