I'm trying to see if I can append function code in the .text section of an ELF while still maintaining the execution flow of the original ELF. Ideally, I want to call the new function but that's it's own mountain to climb. I'm more concerned with just adding the code. Is this realistic? Or am I way over my head? I've been able to add the code by simply overwriting bytes. However, I would like to extend the .text section and insert it. If there's a better method of inserting new functionality into an ELF I'm all ears. But any guidance is helpful.