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-rw-r--r--tools/perf/tests/parse-no-sample-id-all.c108
1 files changed, 108 insertions, 0 deletions
diff --git a/tools/perf/tests/parse-no-sample-id-all.c b/tools/perf/tests/parse-no-sample-id-all.c
new file mode 100644
index 000000000..d62e31595
--- /dev/null
+++ b/tools/perf/tests/parse-no-sample-id-all.c
@@ -0,0 +1,108 @@
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <stddef.h>
+
+#include "tests.h"
+
+#include "event.h"
+#include "evlist.h"
+#include "header.h"
+#include "debug.h"
+
+static int process_event(struct evlist **pevlist, union perf_event *event)
+{
+ struct perf_sample sample;
+
+ if (event->header.type == PERF_RECORD_HEADER_ATTR) {
+ if (perf_event__process_attr(NULL, event, pevlist)) {
+ pr_debug("perf_event__process_attr failed\n");
+ return -1;
+ }
+ return 0;
+ }
+
+ if (event->header.type >= PERF_RECORD_USER_TYPE_START)
+ return -1;
+
+ if (!*pevlist)
+ return -1;
+
+ if (evlist__parse_sample(*pevlist, event, &sample)) {
+ pr_debug("evlist__parse_sample failed\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int process_events(union perf_event **events, size_t count)
+{
+ struct evlist *evlist = NULL;
+ int err = 0;
+ size_t i;
+
+ for (i = 0; i < count && !err; i++)
+ err = process_event(&evlist, events[i]);
+
+ evlist__delete(evlist);
+
+ return err;
+}
+
+struct test_attr_event {
+ struct perf_event_header header;
+ struct perf_event_attr attr;
+ u64 id;
+};
+
+/**
+ * test__parse_no_sample_id_all - test parsing with no sample_id_all bit set.
+ *
+ * This function tests parsing data produced on kernel's that do not support the
+ * sample_id_all bit. Without the sample_id_all bit, non-sample events (such as
+ * mmap events) do not have an id sample appended, and consequently logic
+ * designed to determine the id will not work. That case happens when there is
+ * more than one selected event, so this test processes three events: 2
+ * attributes representing the selected events and one mmap event.
+ *
+ * Return: %0 on success, %-1 if the test fails.
+ */
+static int test__parse_no_sample_id_all(struct test_suite *test __maybe_unused,
+ int subtest __maybe_unused)
+{
+ int err;
+
+ struct test_attr_event event1 = {
+ .header = {
+ .type = PERF_RECORD_HEADER_ATTR,
+ .size = sizeof(struct test_attr_event),
+ },
+ .id = 1,
+ };
+ struct test_attr_event event2 = {
+ .header = {
+ .type = PERF_RECORD_HEADER_ATTR,
+ .size = sizeof(struct test_attr_event),
+ },
+ .id = 2,
+ };
+ struct perf_record_mmap event3 = {
+ .header = {
+ .type = PERF_RECORD_MMAP,
+ .size = sizeof(struct perf_record_mmap),
+ },
+ };
+ union perf_event *events[] = {
+ (union perf_event *)&event1,
+ (union perf_event *)&event2,
+ (union perf_event *)&event3,
+ };
+
+ err = process_events(events, ARRAY_SIZE(events));
+ if (err)
+ return -1;
+
+ return 0;
+}
+
+DEFINE_SUITE("Parse with no sample_id_all bit set", parse_no_sample_id_all);