Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/tools/perf/lib/tests/test-evsel.c b/tools/perf/lib/tests/test-evsel.c
new file mode 100644
index 0000000..1b6c428
--- /dev/null
+++ b/tools/perf/lib/tests/test-evsel.c
@@ -0,0 +1,135 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <stdarg.h>
+#include <stdio.h>
+#include <linux/perf_event.h>
+#include <perf/cpumap.h>
+#include <perf/threadmap.h>
+#include <perf/evsel.h>
+#include <internal/tests.h>
+
+static int libperf_print(enum libperf_print_level level,
+ const char *fmt, va_list ap)
+{
+ return vfprintf(stderr, fmt, ap);
+}
+
+static int test_stat_cpu(void)
+{
+ struct perf_cpu_map *cpus;
+ struct perf_evsel *evsel;
+ struct perf_event_attr attr = {
+ .type = PERF_TYPE_SOFTWARE,
+ .config = PERF_COUNT_SW_CPU_CLOCK,
+ };
+ int err, cpu, tmp;
+
+ cpus = perf_cpu_map__new(NULL);
+ __T("failed to create cpus", cpus);
+
+ evsel = perf_evsel__new(&attr);
+ __T("failed to create evsel", evsel);
+
+ err = perf_evsel__open(evsel, cpus, NULL);
+ __T("failed to open evsel", err == 0);
+
+ perf_cpu_map__for_each_cpu(cpu, tmp, cpus) {
+ struct perf_counts_values counts = { .val = 0 };
+
+ perf_evsel__read(evsel, cpu, 0, &counts);
+ __T("failed to read value for evsel", counts.val != 0);
+ }
+
+ perf_evsel__close(evsel);
+ perf_evsel__delete(evsel);
+
+ perf_cpu_map__put(cpus);
+ return 0;
+}
+
+static int test_stat_thread(void)
+{
+ struct perf_counts_values counts = { .val = 0 };
+ struct perf_thread_map *threads;
+ struct perf_evsel *evsel;
+ struct perf_event_attr attr = {
+ .type = PERF_TYPE_SOFTWARE,
+ .config = PERF_COUNT_SW_TASK_CLOCK,
+ };
+ int err;
+
+ threads = perf_thread_map__new_dummy();
+ __T("failed to create threads", threads);
+
+ perf_thread_map__set_pid(threads, 0, 0);
+
+ evsel = perf_evsel__new(&attr);
+ __T("failed to create evsel", evsel);
+
+ err = perf_evsel__open(evsel, NULL, threads);
+ __T("failed to open evsel", err == 0);
+
+ perf_evsel__read(evsel, 0, 0, &counts);
+ __T("failed to read value for evsel", counts.val != 0);
+
+ perf_evsel__close(evsel);
+ perf_evsel__delete(evsel);
+
+ perf_thread_map__put(threads);
+ return 0;
+}
+
+static int test_stat_thread_enable(void)
+{
+ struct perf_counts_values counts = { .val = 0 };
+ struct perf_thread_map *threads;
+ struct perf_evsel *evsel;
+ struct perf_event_attr attr = {
+ .type = PERF_TYPE_SOFTWARE,
+ .config = PERF_COUNT_SW_TASK_CLOCK,
+ .disabled = 1,
+ };
+ int err;
+
+ threads = perf_thread_map__new_dummy();
+ __T("failed to create threads", threads);
+
+ perf_thread_map__set_pid(threads, 0, 0);
+
+ evsel = perf_evsel__new(&attr);
+ __T("failed to create evsel", evsel);
+
+ err = perf_evsel__open(evsel, NULL, threads);
+ __T("failed to open evsel", err == 0);
+
+ perf_evsel__read(evsel, 0, 0, &counts);
+ __T("failed to read value for evsel", counts.val == 0);
+
+ err = perf_evsel__enable(evsel);
+ __T("failed to enable evsel", err == 0);
+
+ perf_evsel__read(evsel, 0, 0, &counts);
+ __T("failed to read value for evsel", counts.val != 0);
+
+ err = perf_evsel__disable(evsel);
+ __T("failed to enable evsel", err == 0);
+
+ perf_evsel__close(evsel);
+ perf_evsel__delete(evsel);
+
+ perf_thread_map__put(threads);
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ __T_START;
+
+ libperf_init(libperf_print);
+
+ test_stat_cpu();
+ test_stat_thread();
+ test_stat_thread_enable();
+
+ __T_OK;
+ return 0;
+}