Re: object dependency analyser

[Joel Sherrill <joel dot sherrill at oarcorp dot com>]

On 04/09/2010 02:22 PM, Pedro Alves wrote:
> On Friday 09 April 2010 19:07:46, Joel Sherrill wrote:
>    
> > Hi,
> >
> > I tried to google this but the words are too
> > overloaded.  Does anyone know of a utility
> > that can take an executable and tell me
> > why each symbol is in the executable?
> >
> > -Map is a good start at this but having a
> > a dependency graph per symbol would be better.
> >      
> Reminds me of this:
>
>   http://sourceware.org/ml/newlib/2006/msg00309.html
>
> Saved my day a while back (as in, app wasn't
> fitting flash anymore :-) and this made it
> much easier to find what was pulling what).
>
>    
I think that would help if I knew how to run them. :)

I saved the output of ld -M in "map".

cat map | ldmap only prints:

digraph ldmap {
}

Any hints?
--joel

> > The goal is to analyse statically linked
> > RTEMS applications and determine why the
> > individual parts of RTEMS are included. With
> > this information, we can find unused code that
> > is just pulled in.
> >
> > Any ideas?
> >
> >
> >      
>
>    


--
Joel Sherrill, Ph.D.             Director of Research&  Development
joel.sherrill@OARcorp.com        On-Line Applications Research
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