perf evsel: Add hists helper
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>
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index be59394..c9a119e2 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -51,6 +51,7 @@
struct addr_location *al,
struct perf_annotate *ann)
{
+ struct hists *hists = evsel__hists(evsel);
struct hist_entry *he;
int ret;
@@ -66,13 +67,12 @@
return 0;
}
- he = __hists__add_entry(&evsel->hists, al, NULL, NULL, NULL, 1, 1, 0,
- true);
+ he = __hists__add_entry(hists, al, NULL, NULL, NULL, 1, 1, 0, true);
if (he == NULL)
return -ENOMEM;
ret = hist_entry__inc_addr_samples(he, evsel->idx, al->addr);
- hists__inc_nr_samples(&evsel->hists, true);
+ hists__inc_nr_samples(hists, true);
return ret;
}
@@ -225,7 +225,7 @@
total_nr_samples = 0;
evlist__for_each(session->evlist, pos) {
- struct hists *hists = &pos->hists;
+ struct hists *hists = evsel__hists(pos);
u32 nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE];
if (nr_samples > 0) {