Provide a step-by-step way to find register locations missing from debug symbols

[tokenrove]

Eventually this process should be automated, and I have a few ideas for that, but in the mean time, I should describe the process by which I confirm which registers have gotten assigned for what, when their DWARF location is missing, in tutorial/recipe form.

[lrascao]

To get this started, here are some gists (mostly EC2 orientated) to build an Erlang VM from scratch on a given gcc version

Download and install gcc

https://gist.github.com/lrascao/97f6dbf38083b7eb03be820c0017362d

Validate gcc's signature

https://gist.github.com/lrascao/24a73c375d8aafd6fd5a3a91545aaee1

Build OpenSSL

https://gist.github.com/lrascao/744d8a6e0beaad9078cf1f29763a5681

Build Erlang statically linked with OpenSSL

https://gist.github.com/lrascao/6880485b8dc4c51c74392b0fa5b9d358