5 ms·
Having recently had the pleasure of having to debug JIT-compiled code with an ABI mismatch, I can't overstate how useful `rr` (https://github.com/mozilla/rr htt
by wallnuss 6y ago
Having recently had the pleasure of having to debug JIT-compiled code with an ABI mismatch, I can't overstate how useful `rr` (https://github.com/mozilla/rr https://github.com/mozilla/rr) can be to debug assembly. The ability to `rsi` e.g. reverse step instruction is very powerful.
One tool that I started exploring is https://pernos.co/ https://pernos.co/, the ability to do dataflow analysis is super cool. Let's you easily answer the question "How did this value get into this register".
- jlokier 6y ago`rr` is indeed very excellent. It's really striking that it can't work on ARM though, due to an ARM architectural issue which x86 doesn't have.