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perf evsel: Add hists helper

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Not all tools need a hists instance per perf_evsel, so lets pave the way
to remove evsel->hists while leaving a way to access the hists from a
specially allocated evsel, one that comes with space at the end where
lives the evsel.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-qlktkhe31w4mgtbd84035sr2@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
2014-10-09 13:13:41 -03:00
parent 49c23f2d54
commit 4ea062ed43
14 changed files with 132 additions and 101 deletions
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4
tools/perf/util/session.c
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@@ -827,7 +827,7 @@ int perf_session__deliver_event(struct perf_session *session,
* future probably it'll be a good idea to restrict event
* processing via perf_session to files with both set.
*/
hists__inc_nr_events(&evsel->hists, event->header.type);
hists__inc_nr_events(evsel__hists(evsel), event->header.type);
}
machine = perf_session__find_machine_for_cpumode(session, event,
@@ -1398,7 +1398,7 @@ size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp)
evlist__for_each(session->evlist, pos) {
ret += fprintf(fp, "%s stats:\n", perf_evsel__name(pos));
ret += events_stats__fprintf(&pos->hists.stats, fp);
ret += events_stats__fprintf(&evsel__hists(pos)->stats, fp);
}
return ret;