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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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