Re: [PATCH v4 3.0-rc2-tip 20/22] 20: perf: perf interface for uprobes

Arnaldo Carvalho de Melo
2011-06-07T14:21:43Z

Em Tue, Jun 07, 2011 at 07:08:53PM +0530, Ananth N Mavinakayanahalli escreveu:
> On Tue, Jun 07, 2011 at 09:30:39AM -0400, Christoph Hellwig wrote:
> > On Tue, Jun 07, 2011 at 06:32:16PM +0530, Srikar Dronamraju wrote:
> > > Enhances perf probe to user space executables and libraries.
> > > Provides very basic support for uprobes.

> > Nice. Does this require full debug info for symbolic probes,
> > or can it also work with simple symbolc information?

> It works only with symbol information for now.
> It doesn't (yet) know how to use debuginfo :-)

'perf probe' uses perf symbol library, so it really don't have to know
from where symbol resolution information is obtained, only if it needs
things that are _just_ on debuginfo, such as line information, etc.

But then that is also already supported in 'perf probe'.

Or is there something else in particular you're thinking?

- Arnaldo