Insight is a powerful frontend to gdb that uses Tcl/Tk. It was originally a commercial product written and sold by Cygnus. It is currently at version 6.8-1.

Since Cygnus was purchased by Redhat, it is now open source and available here: http://sources.redhat.com/insight/ http://sourceware.org/insight

This is a sample screenshot from the Redhat site:

It uses incr Tcl and [incr Tk] (included). It also includes Tcl/Tk 8.4.1. If someone is interested in updating it...

Jim Ingham's paper describing Insight (GDBTk) http://www.usenix.org/publications/library/proceedings/tcl2k/full_papers/ingham/ingham_html/index.html

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Forked version of Insight, updated for modern versions of Tcl and optimized for Fortran: [1]

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