This was an experiment in adding data visualization plugins to GDB.
The long, technical explanation and pitch to the GDB mailing list can be read in the list archives.
It actually worked pretty well, but when I presented it to the GDB mailing list, they said "we're embedding Python, which solves this problem, too." :(
I'm leaving this repository here, archived, for history's sake, but this is a version of GDB from 2008 and hasn't been touched since the initial proof of concept.