How to run dotnet which is built from source

[Rosentti]

I'm struggling trying to run my project using a source-built runtime.
I've built the release/7.0 branch with Debug configuration to try and diagnose a segfault that my project is somehow causing by using JIT-generated code.
The native coredumps are useless if using the Release build from my package manager, and because of missing debuginfod support I can't just get the symbols either.

I build it with the command line: ./build.sh -c Debug -s clr+libs+packs+host, however this doesn't seem to generate any usable dotnet executable anywhere. Ideally I'd like to do something like /path/to/built/host/dotnet run in my project's dir (but this doesn't seem to be possible?)

I've also tried to use corerun, but this fails with https://gist.github.com/Rosentti/5c8d7e9a43df35834b90c709124ad82e

I'm stumped on what to try next. The docs say:

Since we only built the runtime, we will tell corerun to use the ones shipped with .NET's default installation on your machine.

How do I use the ones I just built? The ones I have installed won't be in the debug configuration so I'd like to use the freshly built ones.

I've also tried the "Using dev shipping packages", but I'm stumped on the second step which tells me to download the "installer".
Should I just download "Source Code (tar.gz)" from the releases or is there a release build somewhere I'm missing? Do I need to replace files in there? How do I link that dotnet version to the native binaries I built if it just downloads them from the web?

I also tried just using the installer repo to build, but there doesn't seem to be a way to make it build in debug mode instead of release.

[Rosentti]

I ended up just doing /mnt/deathclaw/dotnet7CustomBuild/runtime/artifacts/bin/testhost/net7.0-Linux-Debug-x64/dotnet bin/Debug/net7.0/ClientUI.dll, and compiling with system dotnet. This got me the useful error message I needed:

Assert failure(PID 127793 [0x0001f331], Thread: 127793 [0x1f331]): Assertion failed 'varTypeIsIntOrI(op2->gtType) || varTypeIsGC(op2->gtType) : Possibly bad IL with CEE_stind.ref at offset 0022h (op1=byref op2=struct stkDepth=1)' in 'IClientEngine_64:CreateGlobalUser(byref):HSteamUser:this' during 'Importation' (IL size 41; hash 0x23425f98; MinOpts)

    File: /mnt/deathclaw/dotnet7CustomBuild/runtime/src/coreclr/jit/importer.cpp Line: 15133
    Image: /mnt/deathclaw/dotnet7CustomBuild/runtime/artifacts/bin/testhost/net7.0-Linux-Debug-x64/dotnet

Aborted (core dumped)

Why doesn't this raise an exception instead I don't know.