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