Is it possible to create a new ELF executable file by using assembly? I want to make an ’empty’ executable file and fill its code section after.
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Is it possible to create a new ELF executable file by using assembly? I want to make an ’empty’ executable file and fill its code section after.
Here’s an interesting article which you’ll find useful: A Whirlwind Tutorial on Creating Really Teensy ELF Executables for Linux
It starts off by analysing the size of a tiny C-based executable, and then seeks to make it small as possible by using assembler instead. He gets it from 3998 bytes down to just 45 bytes with a series of increasingly more involved analyses and tricks.
I’m sure if you read and follow along with it, you’ll know more about ELF than you likely needed!