Introduction

A few important terms and definitions:

ELF - Executable and Linking Format

Tools useful for this work:

objdump
strace
ltrace
ftrace
objcopy
readelf

Useful devices and files:

/proc/<pid>/maps
/proc/kcore
/boot/System.map
/proc/kallsyms
/proc/iomem

LD_PRELOAD
LD_SHOW_AUXV