Making our own executable packer

In this series, we’ll attempt to understand how Linux executables are organized, how they are executed, and how to make a program that takes an executable fresh off the linker and compresses it - just because we can.

Start with part 1 →

18 parts

1. 1 What's in a Linux executable? 22 min
2. 2 Running an executable without exec 22 min
3. 3 Position-independent code 28 min
4. 4 ELF relocations 17 min
5. 5 The simplest shared library 29 min
6. 6 Loading multiple ELF objects 32 min
7. 7 Dynamic symbol resolution 26 min
8. 8 Dynamic linker speed and correctness 28 min
9. 9 GDB scripting and Indirect functions 41 min
10. 10 Safer memory-mapped structures 18 min
11. 11 More ELF relocations 28 min
12. 12 A no_std Rust binary 27 min
13. 13 Thread-local storage 42 min
14. 14 In the bowels of glibc 48 min
15. 15 Between libcore and libstd 35 min
16. 16 Everything but ELF 26 min
17. 17 Running a self-relocatable ELF from memory 27 min
18. 18 Fine, we'll relocate our own binary! 37 min