Re: [PATCH v4 2/3] Support for perf to probe into SDT markers:

From: Mark Wielaard
Date: Thu Oct 31 2013 - 06:55:40 EST


On Wed, 2013-10-30 at 13:51 +0200, Pekka Enberg wrote:
> On 10/30/13 12:05 PM, Masami Hiramatsu wrote:
> > To find all system libraries, we can use ldconfig.
> >
> > $ ldconfig --print-cache
> >
> > shows what dynamic libraries will be loaded. On my own laptop (running
> > ubuntu13.04) shows ~1000 libs.
>
> Good point. That definitely narrows down the scanned set.

It is fast. But that would miss the various libjvm.so variants for
example. Or other programs, like libreoffice, which have SDT probes in
their internal shared libraries that aren't in the default ldconfig
paths.

Cheers,

Mark

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