Generating executable files from scratch

Though the graphic, like this post, doesn't talk much about elf segments.

Its part of a awesome talk on file formats from the ccc.

Not sure what "the ccc" is (if it's not "corkami") but your comment and parent's led me to finding this treasure-trove of format visualizations:

Lots of good stuff here!

"the ccc" usually refers to "The Chaos Computer Club"

Chaos Computer Club

Even more from scratch (e.g. without using elf.h) and also for Win and Mac: http://www.hanshq.net/making-executables.html

A Magnetized Needle and a Steady Hand:

(when all you've got is `echo', and presumably `cat')

Also of interest: http://www.muppetlabs.com/~breadbox/software/tiny/teensy.htm... "A Whirlwind Tutorial on Creating Really Teensy ELF Executables for Linux"