libperf: Add nr_entries to struct perf_evlist

Move nr_entries count from 'struct perf' to into perf_evlist struct.

Committer notes:

Fix tools/perf/arch/s390/util/auxtrace.c case. And also the comment in
tools/perf/util/annotate.h.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20190721112506.12306-42-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

10 files changed, 26 insertions, 27 deletions

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 6ea5d678a81c..d46f2ae2c695 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -936,7 +936,7 @@ static int symbol__inc_addr_samples(struct symbol *sym, struct map *map,
 
 	if (sym == NULL)
 		return 0;
-	src = symbol__hists(sym, evsel->evlist->nr_entries);
+	src = symbol__hists(sym, evsel->evlist->core.nr_entries);
 	return (src) ?  __symbol__inc_addr_samples(sym, map, src, evsel->idx,
 						   addr, sample) : 0;
 }
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index 7c42f320efa2..d94be9140e31 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -245,7 +245,7 @@ struct cyc_hist {
 /** struct annotated_source - symbols with hits have this attached as in sannotation
  *
  * @histograms: Array of addr hit histograms per event being monitored
- * nr_histograms: This may not be the same as evsel->evlist->nr_entries if
+ * nr_histograms: This may not be the same as evsel->evlist->core.nr_entries if
  * 		  we have more than a group in a evlist, where we will want
  * 		  to see each group separately, that is why symbol__annotate2()
  * 		  sets src->nr_histograms to evsel->nr_members.
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 9b0108c23010..ce9f52215d60 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -125,7 +125,7 @@ static void perf_evlist__purge(struct evlist *evlist)
 		evsel__delete(pos);
 	}
 
-	evlist->nr_entries = 0;
+	evlist->core.nr_entries = 0;
 }
 
 void perf_evlist__exit(struct evlist *evlist)
@@ -180,12 +180,13 @@ static void perf_evlist__propagate_maps(struct evlist *evlist)
 
 void evlist__add(struct evlist *evlist, struct evsel *entry)
 {
-	perf_evlist__add(&evlist->core, &entry->core);
 	entry->evlist = evlist;
-	entry->idx = evlist->nr_entries;
+	entry->idx = evlist->core.nr_entries;
 	entry->tracking = !entry->idx;
 
-	if (!evlist->nr_entries++)
+	perf_evlist__add(&evlist->core, &entry->core);
+
+	if (evlist->core.nr_entries == 1)
 		perf_evlist__set_id_pos(evlist);
 
 	__perf_evlist__propagate_maps(evlist, entry);
@@ -195,7 +196,6 @@ void evlist__remove(struct evlist *evlist, struct evsel *evsel)
 {
 	evsel->evlist = NULL;
 	perf_evlist__remove(&evlist->core, &evsel->core);
-	evlist->nr_entries -= 1;
 }
 
 void perf_evlist__splice_list_tail(struct evlist *evlist,
@@ -225,8 +225,8 @@ void __perf_evlist__set_leader(struct list_head *list)
 
 void perf_evlist__set_leader(struct evlist *evlist)
 {
-	if (evlist->nr_entries) {
-		evlist->nr_groups = evlist->nr_entries > 1 ? 1 : 0;
+	if (evlist->core.nr_entries) {
+		evlist->nr_groups = evlist->core.nr_entries > 1 ? 1 : 0;
 		__perf_evlist__set_leader(&evlist->core.entries);
 	}
 }
@@ -249,7 +249,7 @@ int perf_evlist__add_dummy(struct evlist *evlist)
 		.config = PERF_COUNT_SW_DUMMY,
 		.size	= sizeof(attr), /* to capture ABI version */
 	};
-	struct evsel *evsel = perf_evsel__new_idx(&attr, evlist->nr_entries);
+	struct evsel *evsel = perf_evsel__new_idx(&attr, evlist->core.nr_entries);
 
 	if (evsel == NULL)
 		return -ENOMEM;
@@ -266,7 +266,7 @@ static int evlist__add_attrs(struct evlist *evlist,
 	size_t i;
 
 	for (i = 0; i < nr_attrs; i++) {
-		evsel = perf_evsel__new_idx(attrs + i, evlist->nr_entries + i);
+		evsel = perf_evsel__new_idx(attrs + i, evlist->core.nr_entries + i);
 		if (evsel == NULL)
 			goto out_delete_partial_list;
 		list_add_tail(&evsel->core.node, &head);
@@ -581,7 +581,7 @@ struct evsel *perf_evlist__id2evsel(struct evlist *evlist, u64 id)
 {
 	struct perf_sample_id *sid;
 
-	if (evlist->nr_entries == 1 || !id)
+	if (evlist->core.nr_entries == 1 || !id)
 		return perf_evlist__first(evlist);
 
 	sid = perf_evlist__id2sid(evlist, id);
@@ -639,7 +639,7 @@ struct evsel *perf_evlist__event2evsel(struct evlist *evlist,
 	int hash;
 	u64 id;
 
-	if (evlist->nr_entries == 1)
+	if (evlist->core.nr_entries == 1)
 		return first;
 
 	if (!first->attr.sample_id_all &&
@@ -1222,7 +1222,7 @@ bool perf_evlist__valid_sample_type(struct evlist *evlist)
 {
 	struct evsel *pos;
 
-	if (evlist->nr_entries == 1)
+	if (evlist->core.nr_entries == 1)
 		return true;
 
 	if (evlist->id_pos < 0 || evlist->is_pos < 0)
@@ -1849,7 +1849,7 @@ int perf_evlist__add_sb_event(struct evlist **evlist,
 		attr->sample_id_all = 1;
 	}
 
-	evsel = perf_evsel__new_idx(attr, (*evlist)->nr_entries);
+	evsel = perf_evsel__new_idx(attr, (*evlist)->core.nr_entries);
 	if (!evsel)
 		goto out_err;
 
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 7117378a08e3..17dd83021a79 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -28,7 +28,6 @@ struct record_opts;
 struct evlist {
 	struct perf_evlist core;
 	struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
-	int		 nr_entries;
 	int		 nr_groups;
 	int		 nr_mmaps;
 	bool		 enabled;
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 70ab6b8c715b..141de4425100 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -476,7 +476,7 @@ static int write_event_desc(struct feat_fd *ff,
 	u32 nre, nri, sz;
 	int ret;
 
-	nre = evlist->nr_entries;
+	nre = evlist->core.nr_entries;
 
 	/*
 	 * write number of events
@@ -3100,7 +3100,7 @@ int perf_session__write_header(struct perf_session *session,
 		.attr_size = sizeof(f_attr),
 		.attrs = {
 			.offset = attr_offset,
-			.size   = evlist->nr_entries * sizeof(f_attr),
+			.size   = evlist->core.nr_entries * sizeof(f_attr),
 		},
 		.data = {
 			.offset = header->data_offset,
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index a0b7d68d2f8e..10efc33c56a1 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1909,7 +1909,7 @@ int parse_events(struct evlist *evlist, const char *str,
 {
 	struct parse_events_state parse_state = {
 		.list   = LIST_HEAD_INIT(parse_state.list),
-		.idx    = evlist->nr_entries,
+		.idx    = evlist->core.nr_entries,
 		.error  = err,
 		.evlist = evlist,
 	};
@@ -2040,7 +2040,7 @@ foreach_evsel_in_last_glob(struct evlist *evlist,
 	 *
 	 * So no need to WARN here, let *func do this.
 	 */
-	if (evlist->nr_entries > 0)
+	if (evlist->core.nr_entries > 0)
 		last = perf_evlist__last(evlist);
 
 	do {
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index 19d2feee91d5..cf0a18d49018 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -973,10 +973,10 @@ static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
 
 	Py_INCREF(pevsel);
 	evsel = &((struct pyrf_evsel *)pevsel)->evsel;
-	evsel->idx = evlist->nr_entries;
+	evsel->idx = evlist->core.nr_entries;
 	evlist__add(evlist, evsel);
 
-	return Py_BuildValue("i", evlist->nr_entries);
+	return Py_BuildValue("i", evlist->core.nr_entries);
 }
 
 static struct perf_mmap *get_md(struct evlist *evlist, int cpu)
@@ -1112,7 +1112,7 @@ static Py_ssize_t pyrf_evlist__length(PyObject *obj)
 {
 	struct pyrf_evlist *pevlist = (void *)obj;
 
-	return pevlist->evlist.nr_entries;
+	return pevlist->evlist.core.nr_entries;
 }
 
 static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
@@ -1120,7 +1120,7 @@ static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
 	struct pyrf_evlist *pevlist = (void *)obj;
 	struct evsel *pos;
 
-	if (i >= pevlist->evlist.nr_entries)
+	if (i >= pevlist->evlist.core.nr_entries)
 		return NULL;
 
 	evlist__for_each_entry(&pevlist->evlist, pos) {
diff --git a/tools/perf/util/record.c b/tools/perf/util/record.c
index fecccfd71aa1..3d3d732498e1 100644
--- a/tools/perf/util/record.c
+++ b/tools/perf/util/record.c
@@ -166,7 +166,7 @@ void perf_evlist__config(struct evlist *evlist, struct record_opts *opts,
 		 */
 		use_sample_identifier = perf_can_sample_identifier();
 		sample_id = true;
-	} else if (evlist->nr_entries > 1) {
+	} else if (evlist->core.nr_entries > 1) {
 		struct evsel *first = perf_evlist__first(evlist);
 
 		evlist__for_each_entry(evlist, evsel) {
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index d8e4392d6e18..fa3cc2112b82 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -2323,7 +2323,7 @@ static struct evsel *find_evsel(struct evlist *evlist, char *event_name)
 	if (event_name[0] == '%') {
 		int nr = strtol(event_name+1, NULL, 0);
 
-		if (nr > evlist->nr_entries)
+		if (nr > evlist->core.nr_entries)
 			return NULL;
 
 		evsel = perf_evlist__first(evlist);
diff --git a/tools/perf/util/top.c b/tools/perf/util/top.c
index 9f098db76e3c..3bbbdac2c550 100644
--- a/tools/perf/util/top.c
+++ b/tools/perf/util/top.c
@@ -70,7 +70,7 @@ size_t perf_top__header_snprintf(struct perf_top *top, char *bf, size_t size)
 			       esamples_percent);
 	}
 
-	if (top->evlist->nr_entries == 1) {
+	if (top->evlist->core.nr_entries == 1) {
 		struct evsel *first = perf_evlist__first(top->evlist);
 		ret += SNPRINTF(bf + ret, size - ret, "%" PRIu64 "%s ",
 				(uint64_t)first->attr.sample_period,