Re: Extracting call graphs (Re: Show functions in obj files?)

Dietmar Schroeder <schroeder@ifn.ing.tu-bs.de> wrote:
>we are looking for a tool that could display all functions used in a
>c-program by examinating the gcc compiled obj files (inc. debug info).


rfg@monkeys.com (Ronald F. Guilmette) wrote:
> On the other hand, if you want a _call graph_ of your C code (which I suspect
> that you do, given that fact that you said that you want a list of functions
> that are ``used'') then there ought to be _some_ tool out there somewhere
> which will do that for you, ...


I have written a small awk-script which will take the output from
cxref and generate and xvcg graph description file. It's not very
pretty, but if anyone is interested, I can mail it to them.


I weren't very succesful with it, however. For my program, the call
graph got very large and complex and not very useful. I could probably
have hand-edited it a bit to remove the most commonly called utility
functions to get a nicer picture, but I decided it wasn't worth the
effort.
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      Niels Ull Jacobsen, Dep. of CS, U of Copenhagen (null@diku.dk)
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