Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

Infrastructure fixes and changes:

  * Fix off-by-one bugs in map->end handling (Stephane Eranian)

  * Fix off-by-one bug in maps__find(), also related to map->end handling (Namhyung Kim)

  * Make struct symbol->end be the first addr after the symbol range, to make it
    match the convention used for struct map->end. (Arnaldo Carvalho de Melo)

  * Fix perf_evlist__add_pollfd() error handling in 'perf kvm stat live' (Jiri Olsa)

  * Fix python test build by moving callchain_param to an object linked into the
    python binding (Jiri Olsa)

  * Do not include a struct hists per perf_evsel, untangling the histogram code
    from perf_evsel, to pave the way for exporting a minimalistic
    tools/lib/api/perf/ library usable by tools/perf and initially by the rasd
    daemon being developed by Borislav Petkov, Robert Richter and Jean Pihet.
    (Arnaldo Carvalho de Melo)

  * Make perf_evlist__open(evlist, NULL, NULL), i.e. without cpu and thread
    maps mean syswide monitoring, reducing the boilerplate for tools that
    only want system wide mode. (Arnaldo Carvalho de Melo)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 15 insertions, 9 deletions

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index ac145fae0521..2cfc4b93991f 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -288,12 +288,14 @@ static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report
 		evname = buf;
 
 		for_each_group_member(pos, evsel) {
+			const struct hists *pos_hists = evsel__hists(pos);
+
 			if (symbol_conf.filter_relative) {
-				nr_samples += pos->hists.stats.nr_non_filtered_samples;
-				nr_events += pos->hists.stats.total_non_filtered_period;
+				nr_samples += pos_hists->stats.nr_non_filtered_samples;
+				nr_events += pos_hists->stats.total_non_filtered_period;
 			} else {
-				nr_samples += pos->hists.stats.nr_events[PERF_RECORD_SAMPLE];
-				nr_events += pos->hists.stats.total_period;
+				nr_samples += pos_hists->stats.nr_events[PERF_RECORD_SAMPLE];
+				nr_events += pos_hists->stats.total_period;
 			}
 		}
 	}
@@ -318,7 +320,7 @@ static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist,
 	struct perf_evsel *pos;
 
 	evlist__for_each(evlist, pos) {
-		struct hists *hists = &pos->hists;
+		struct hists *hists = evsel__hists(pos);
 		const char *evname = perf_evsel__name(pos);
 
 		if (symbol_conf.event_group &&
@@ -427,7 +429,7 @@ static void report__collapse_hists(struct report *rep)
 	ui_progress__init(&prog, rep->nr_entries, "Merging related events...");
 
 	evlist__for_each(rep->session->evlist, pos) {
-		struct hists *hists = &pos->hists;
+		struct hists *hists = evsel__hists(pos);
 
 		if (pos->idx == 0)
 			hists->symbol_filter_str = rep->symbol_filter_str;
@@ -437,7 +439,7 @@ static void report__collapse_hists(struct report *rep)
 		/* Non-group events are considered as leader */
 		if (symbol_conf.event_group &&
 		    !perf_evsel__is_group_leader(pos)) {
-			struct hists *leader_hists = &pos->leader->hists;
+			struct hists *leader_hists = evsel__hists(pos->leader);
 
 			hists__match(leader_hists, hists);
 			hists__link(leader_hists, hists);
@@ -485,6 +487,7 @@ static int __cmd_report(struct report *rep)
 
 		if (dump_trace) {
 			perf_session__fprintf_nr_events(session, stdout);
+			perf_evlist__fprintf_nr_events(session->evlist, stdout);
 			return 0;
 		}
 	}
@@ -500,7 +503,7 @@ static int __cmd_report(struct report *rep)
 	}
 
 	evlist__for_each(session->evlist, pos)
-		hists__output_resort(&pos->hists);
+		hists__output_resort(evsel__hists(pos));
 
 	return report__browse_hists(rep);
 }
@@ -565,7 +568,6 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
 	struct stat st;
 	bool has_br_stack = false;
 	int branch_mode = -1;
-	int ret = -1;
 	char callchain_default_opt[] = "fractal,0.5,callee";
 	const char * const report_usage[] = {
 		"perf report [<options>]",
@@ -692,6 +694,10 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
 	struct perf_data_file file = {
 		.mode  = PERF_DATA_MODE_READ,
 	};
+	int ret = hists__init();
+
+	if (ret < 0)
+		return ret;
 
 	perf_config(report__config, &report);