Re: [PATCH] perf/powerpc: Cache the DWARF debug info

[Arnaldo Carvalho de Melo <acme@kernel.org>]

Em Thu, Oct 23, 2014 at 05:13:06PM +0200, Jiri Olsa escreveu:
> On Thu, Oct 23, 2014 at 11:26:34AM -0300, Arnaldo Carvalho de Melo wrote:
> > That is why I thought it would be a compromise to put what he did, it
> > would not make the existing situation that much worse, work needs to be
> > done in this area :-\
 
> I think we just need to put that libdw handle into dso object
> as I suggested above

Isn't it there already?

The patch does:

+++ b/tools/perf/util/dso.h
@@ -127,6 +127,7 @@ struct dso {
        const char       *long_name;
        u16              long_name_len;
        u16              short_name_len;
+       void            *dwfl;                  /* DWARF debug info */


----------

What you want, on top of that, at a minimum, we somehow limit the number
of simultaneously dwfl_begin()'ed DSOs, right?

- Arnaldo