Looking for static analysis tool to generate call graphs

[Robert Watson]

On Wed, 3 Mar 2004, Dag-Erling Smørgrav wrote:

> Robert Watson <rwatson at FreeBSD.org> writes:
> > Well, using a scary combination of grep, awk, a long list of "omit this"
> > regexp's, and prcc from cflow, I got the following: 
> >
> >     http://www.watson.org/~robert/freebsd/20040302-sockets.ps
> >
> > Duck and cover. 
> 
> Hmm, is there any way you can try to group functions with similar names
> together?  For instance, functions whose names match /^fd.*/ call mostly
> eachother, and the graph would be a lot cleaner if they were placed
> close together. 

In the most recent revision, I've tried to assign the same rank and color
to certain classes of functions: 

  System Calls (accept, bind, close, connect, dup, ...)

  Protocol Switch (pru_accept, pru_attach, pru_bind, pr_ctloutput, ...)

  File Descriptor Switch (fo_read, fo_write, fo_poll, ...)

  Socket File Descriptor Functions (soo_read, soo_write, ...)

In addition, I assigned the same color to certain classes of functions:

  Almost System Calls (kern_bind, kern_connect, accept1, ...)

  Protocol Upcalls to Socket Layer (soisdisconnected, soisdisconnected, ...)

I'm going to experiment with grouping later today.

Robert N M Watson             FreeBSD Core Team, TrustedBSD Projects
robert at fledge.watson.org      Senior Research Scientist, McAfee Research