Debugging with GDB under Emacs - Concise

http://tedlab.mit.edu/~dr/gdbintro.html

Some Tcl Debugging tricks and tips

http://en.wikibooks.org/wiki/Tcl_Programming/Debugging

Perhaps it's time I tried something more effective than this?...

http://www.youtube.com/watch?v=g3744t2Vj4Q

Debugging Rules -- Dave Agans

http://www.debuggingrules.com

Informative Slides: Debugging Linux Applications (Codefidence)

http://www.scribd.com/doc/3009706/Debugging-Linux-Applications#

Ganssle on Embedded HW and SW build and debug

http://www.eetimes.com/design/embedded/4210313/Tips-on-building-and-debugging-embedded-hardware-software-designs?Ecosystem=embedded
(EE Times)