[Lula] recommendations on code tracing tools

[Charles Wyble]

    Check out dia. It produces a graphical representation of the code. 
UML diagrams. Not sure if that is what you want. Well  its not dia per 
se. Its a plugin that produces XML output that dia can read.

al at danial.org wrote:
> I've got a huge package of source code I'm trying to understand.  
> Say the source code to Perl.
>
> What I want to be able to do is see the name of each function
> as execution enters and leaves that function, in other words,
> the dynamic call graph of the functions in that package.  The
> output might look like
>     entering main
>     entering init
>     entering populate_X
>     leaving  populate_X
>     entering populate_Y
>     entering set_y1
>     leaving  set_y1
>     leaving  populate_Y
>     leaving  init
>          :
>     leaving   main
>
> I know I can use gdb to step through the code but that would
> take forever, especially for all the different inputs I plan to
> give the executable.   Can gdb be scripted to print function 
> entries/exits automatically?
>
> Also I'm familiar with etrace (http://ndevilla.free.fr/etrace/) which 
> would be great if it actually worked--but it doesn't (frequently
> hangs on executables produced by GCC v4).
>
> Can anyone recommend a function tracing tool?  Ideally the tool
> would be capable of working with externally called libraries 
> too.     -- Al
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>   

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