[mhh__]

A specific example: At [NDA-ed work project] we compile a lot of templates in our D code. I was using a uProbe to hijack the semantic analysis in the D compiler to count how many and where the templates where from.

All good so far, but the moment I wanted to do a little bit of non-trivial work (collect some metadata which is not a memory access away) I would've had to switch to some other much more complicated system. I don't think Pin is that complicated but it's not really intended for "infra" programming like eBPF.