I think Tracealyzer does some of this kind of thing for logging embedded control flow in a way that's ultra compact but requires significant post processing aft

I think Tracealyzer does some of this kind of thing for logging embedded control flow in a way that's ultra compact but requires significant post processing after the trace has been recovered. It's a commercial product but in my usage/experience worth every penny: https://www.highintegritysystems.com/tools/tracealyzer/ https://www.highintegritysystems.com/tools/tracealyzer/