Tag Archives: graphviz

How not to maintain an API

So I’ve been working on my graphing code for EDB. I was eventually able to create a Qt widget that natively renders a graphviz graph layout. It actually works quite nicely, you can create an ordinary Graphviz graph either in memory or from a file like usual. The code can simply create a “GraphWidget” and the code will display the graph perfectly (there are some constructs that it doesn’t support, but the basics are there) with nice things such as zooming and rotating.

All of this works great, except for the fact that Graphviz decided to change some of the structures used to represent the laid-out graph.

Fun with graphs

So I figured that I would post some of the progress with EDB. I’ve been very happy with the function analysis engine that I developed, but there is one thing that it completely ignores basic block analysis. Of course, in order to identify functions it does technically break things down into blocks, but this information is discarded when a whole function is identified.