Reverse engineering from c code to sequence chart

Question

I have ac code and I want to extract some patterns of code which contains instructions of communication etc and build a sequence chart from that.

Is there any way I can do that?

Thanks

Answer 1

You can use pic2plot which is part of GNU plotutils. You need log/trace what talks to what, to a file and then you can render it with pic2plot. I've done this for a python program, but there is no reason why you can't do that with a C program.

_{(source: umlgraph.org )}

see http://www.umlgraph.org/

Answer 2

I strongly recommend to use doxygen with the following options:

EXTRACT_ALL            = YES
CALL_GRAPH             = YES
CALLER_GRAPH           = YES
GRAPHICAL_HIERARCHY    = YES

You will get a very nice call and caller graphs of functions which can help a great deal with understanding the code. A call graph is more common and useful for C code than a sequence chart.

call graph http://pedro.larroy.com/files/example.png