1 files changed, 125 insertions, 0 deletions
diff --git a/tools/perf/tests/evsel-roundtrip-name.c b/tools/perf/tests/evsel-roundtrip-name.c
new file mode 100644
index 000000000..e94fed901
--- /dev/null
+++ b/tools/perf/tests/evsel-roundtrip-name.c
@@ -0,0 +1,125 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "evlist.h"
+#include "evsel.h"
+#include "parse-events.h"
+#include "tests.h"
+#include "debug.h"
+#include "pmu.h"
+#include "pmu-hybrid.h"
+#include <errno.h>
+#include <linux/kernel.h>
+
+static int perf_evsel__roundtrip_cache_name_test(void)
+{
+	char name[128];
+	int type, op, err = 0, ret = 0, i, idx;
+	struct evsel *evsel;
+	struct evlist *evlist = evlist__new();
+
+        if (evlist == NULL)
+                return -ENOMEM;
+
+	for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
+		for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
+			/* skip invalid cache type */
+			if (!evsel__is_cache_op_valid(type, op))
+				continue;
+
+			for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
+				__evsel__hw_cache_type_op_res_name(type, op, i, name, sizeof(name));
+				err = parse_event(evlist, name);
+				if (err)
+					ret = err;
+			}
+		}
+	}
+
+	idx = 0;
+	evsel = evlist__first(evlist);
+
+	for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
+		for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
+			/* skip invalid cache type */
+			if (!evsel__is_cache_op_valid(type, op))
+				continue;
+
+			for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
+				__evsel__hw_cache_type_op_res_name(type, op, i, name, sizeof(name));
+				if (evsel->core.idx != idx)
+					continue;
+
+				++idx;
+
+				if (strcmp(evsel__name(evsel), name)) {
+					pr_debug("%s != %s\n", evsel__name(evsel), name);
+					ret = -1;
+				}
+
+				evsel = evsel__next(evsel);
+			}
+		}
+	}
+
+	evlist__delete(evlist);
+	return ret;
+}
+
+static int __perf_evsel__name_array_test(const char *const names[], int nr_names,
+					 int distance)
+{
+	int i, err;
+	struct evsel *evsel;
+	struct evlist *evlist = evlist__new();
+
+        if (evlist == NULL)
+                return -ENOMEM;
+
+	for (i = 0; i < nr_names; ++i) {
+		err = parse_event(evlist, names[i]);
+		if (err) {
+			pr_debug("failed to parse event '%s', err %d\n",
+				 names[i], err);
+			goto out_delete_evlist;
+		}
+	}
+
+	err = 0;
+	evlist__for_each_entry(evlist, evsel) {
+		if (strcmp(evsel__name(evsel), names[evsel->core.idx / distance])) {
+			--err;
+			pr_debug("%s != %s\n", evsel__name(evsel), names[evsel->core.idx / distance]);
+		}
+	}
+
+out_delete_evlist:
+	evlist__delete(evlist);
+	return err;
+}
+
+#define perf_evsel__name_array_test(names, distance) \
+	__perf_evsel__name_array_test(names, ARRAY_SIZE(names), distance)
+
+static int test__perf_evsel__roundtrip_name_test(struct test_suite *test __maybe_unused,
+						 int subtest __maybe_unused)
+{
+	int err = 0, ret = 0;
+
+	if (perf_pmu__has_hybrid() && perf_pmu__hybrid_mounted("cpu_atom"))
+		return perf_evsel__name_array_test(evsel__hw_names, 2);
+
+	err = perf_evsel__name_array_test(evsel__hw_names, 1);
+	if (err)
+		ret = err;
+
+	err = __perf_evsel__name_array_test(evsel__sw_names, PERF_COUNT_SW_DUMMY + 1, 1);
+	if (err)
+		ret = err;
+
+	err = perf_evsel__roundtrip_cache_name_test();
+	if (err)
+		ret = err;
+
+	return ret;
+}
+
+DEFINE_SUITE("Roundtrip evsel->name", perf_evsel__roundtrip_name_test);