I've given a go at making a GDB GUI (not published anywhere currently). It's at a stage where it looks pretty nice, and is usable for a decent number of basic t

I've given a go at making a GDB GUI (not published anywhere currently). It's at a stage where it looks pretty nice, and is usable for a decent number of basic things, but GDB/MI is such a pain to work with (the existing commands often lack some basic info, some things you may want to query don't have GDB/MI commands, and some outputs are just completely broken (e.g. multiple stop reasons)) that it's sucked pretty much all enthusiasm I had for working on it. I wish the best of luck to the authors of this; it seems they've already done a majority of the GDB/MI work, albeit largely by substring searches, and likely not handling the tons of edge-cases GDB/MI gives.