Re: [PATCH 00/13] perf tools: Use plain debug files for compressed objects

[Arnaldo Carvalho de Melo]

Em Fri, Aug 17, 2018 at 11:48:00AM +0200, Jiri Olsa escreveu:
> hi,
> currently we don't allow to open plain debug files for
> compressed kernel module objects, ending up with following
> warning:
> 
>   $ perf report --stdio
>   lzma: failed The input is not in the .xz format
>   lzma: failed The input is not in the .xz format
>   lzma: failed The input is not in the .xz format
>   lzma: failed The input is not in the .xz format
>   # To display the perf.data header info, please use --header/--header-only options.
> 
> The reason is behind the logic we open the DSO object files,
> when we try all possible 'debug' objects until we find the
> data. So even if the DSO is represented by 'krava.xz' module,
> we can end up opening ~/.debug/....23432432/debug' file which
> is not compressed and we fail with above error.
> 
> This patchset adds the code to detect un/compressed files and
> return plain debug file when available even for compressed
> kernel modules.
> 
> Also available in here:
>   git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git
>   perf/fixes

Thanks, applied.

- Arnaldo