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 <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Jean Pihet <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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) {
