Messages in this thread | | | From | Namhyung Kim <> | Subject | Re: [PATCH 1/9] perf python: add ui stubs file | Date | Wed, 31 Oct 2012 16:18:16 +0900 |
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On Tue, 30 Oct 2012 08:53:38 -0700, Arnaldo Carvalho de Melo wrote: > Em Tue, Oct 30, 2012 at 08:45:28AM -0600, David Ahern escreveu: >> On 10/30/12 1:24 AM, Namhyung Kim wrote: >> >On Mon, 29 Oct 2012 10:31:41 -0600, David Ahern wrote: >> >>stdio based implementations of ui_xxxx based functions for the python >> >>library. Needed for patch 3 - consolidating open counters method. > >> >How about adding ui/util.c to the python-ext-sources? > >> Handles some of the ui_xxxx functions, but still missing some >> symbols -- verbose, eprintf, ui__error_paranoid. The point of the >> python_stubs.c was a short term solution for the ui handlers. >> Arnaldo had some ideas on what is really needed. > > Yes, and that is something like what Namhyung did for perf_target, i.e. > don't call ui__ stuff from the evsel/evlist classes but use a > perf_evlist__strerror, merge perf_evlist__open_counters() with > perf_evlist__open(), use just perf_evlist__open() everywhere, so that > all tools get the fallbacks for features not present in older kernels, > etc.
Yeah, it'd be better definitely. But the problem is we might emit warnings even in the internal fallback loop. Not sure how to handle it with this approach.
Thanks, Namhyung
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