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Overview
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Julia Evans wrote a program to get debugging information from a running Ruby
process. The brief explanation of that is here:
http://jvns.ca/blog/2016/06/12/a-weird-system-call-process-vm-readv/
Her prototype program in Rust is here:
https://github.com/jvns/ruby-stacktrace
This is a reimplementation of that program in plain old C99. I am also planning
on using libdwarf to read debugging information instead of hardcoding machine-
specific data like Julia's prototype.
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Requirements
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- gcc
- libdwarf
- libelf
- linux
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Usage
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> cd /path/to/repository
> source env/shell
> build main.c
> ruby &
> export ruby_pid=$!
> run $ruby_pid
