1#include <sys/types.h>
  2#include <stddef.h>
  3
  4#include "tests.h"
  5
  6#include "event.h"
  7#include "evlist.h"
  8#include "header.h"
  9#include "util.h"
 10
 11static int process_event(struct perf_evlist **pevlist, union perf_event *event)
 12{
 13	struct perf_sample sample;
 14
 15	if (event->header.type == PERF_RECORD_HEADER_ATTR) {
 16		if (perf_event__process_attr(NULL, event, pevlist)) {
 17			pr_debug("perf_event__process_attr failed\n");
 18			return -1;
 19		}
 20		return 0;
 21	}
 22
 23	if (event->header.type >= PERF_RECORD_USER_TYPE_START)
 24		return -1;
 25
 26	if (!*pevlist)
 27		return -1;
 28
 29	if (perf_evlist__parse_sample(*pevlist, event, &sample)) {
 30		pr_debug("perf_evlist__parse_sample failed\n");
 31		return -1;
 32	}
 33
 34	return 0;
 35}
 36
 37static int process_events(union perf_event **events, size_t count)
 38{
 39	struct perf_evlist *evlist = NULL;
 40	int err = 0;
 41	size_t i;
 42
 43	for (i = 0; i < count && !err; i++)
 44		err = process_event(&evlist, events[i]);
 45
 46	if (evlist)
 47		perf_evlist__delete(evlist);
 48
 49	return err;
 50}
 51
 52struct test_attr_event {
 53	struct attr_event attr;
 54	u64 id;
 55};
 56
 57/**
 58 * test__parse_no_sample_id_all - test parsing with no sample_id_all bit set.
 59 *
 60 * This function tests parsing data produced on kernel's that do not support the
 61 * sample_id_all bit.  Without the sample_id_all bit, non-sample events (such as
 62 * mmap events) do not have an id sample appended, and consequently logic
 63 * designed to determine the id will not work.  That case happens when there is
 64 * more than one selected event, so this test processes three events: 2
 65 * attributes representing the selected events and one mmap event.
 66 *
 67 * Return: %0 on success, %-1 if the test fails.
 68 */
 69int test__parse_no_sample_id_all(void)
 70{
 71	int err;
 72
 73	struct test_attr_event event1 = {
 74		.attr = {
 75			.header = {
 76				.type = PERF_RECORD_HEADER_ATTR,
 77				.size = sizeof(struct test_attr_event),
 78			},
 79		},
 80		.id = 1,
 81	};
 82	struct test_attr_event event2 = {
 83		.attr = {
 84			.header = {
 85				.type = PERF_RECORD_HEADER_ATTR,
 86				.size = sizeof(struct test_attr_event),
 87			},
 88		},
 89		.id = 2,
 90	};
 91	struct mmap_event event3 = {
 92		.header = {
 93			.type = PERF_RECORD_MMAP,
 94			.size = sizeof(struct mmap_event),
 95		},
 96	};
 97	union perf_event *events[] = {
 98		(union perf_event *)&event1,
 99		(union perf_event *)&event2,
100		(union perf_event *)&event3,
101	};
102
103	err = process_events(events, ARRAY_SIZE(events));
104	if (err)
105		return -1;
106
107	return 0;
108}