Re: call graphs in sprof

[Pierre Habouzit <madcoder at debian dot org>]

On Tue, Jul 03, 2007 at 11:30:57AM +0530, Arvind Ayyangar wrote:
> Thanks. i installed libc6-dbg and the call graph does give me more
> information. But I still find symbols name <UNKNOWN> in the call
> graphs.

  please read mails fully.

> >  It means that your libc is built without debug symbols, so that the
> >profiler cannot know what's going on in your libc. Worse, if you're
                                                      ^^^^^^^^^^^^^^^^
> >using a gprof based method, it would also need your libc to be built
   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> >with profiling enabled, a thing that almost no distributions give.  But
   ^^^^^^^^^^^^^^^^^^^^^^
> >sysprof/oprofile-like tools do not need that rebuild, so use them :)
> >
> >  If you use a debian based distribution, libc6-dbg holds the debug
> >symbols of the libc.
> >--
> >ÂOÂ  Pierre Habouzit
> >ÂÂO                                                madcoder@debian.org
> >OOO                                                http://www.madism.org
> >
> >
> -
> Arvind

-- 
ÂOÂ  Pierre Habouzit
ÂÂO                                                madcoder@debian.org
OOO                                                http://www.madism.org

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