1// SPDX-License-Identifier: GPL-2.0
  2#include <linux/kernel.h>
  3#include <linux/types.h>
  4#include <stddef.h>
  5
  6#include "tests.h"
  7
  8#include "event.h"
  9#include "evlist.h"
 10#include "header.h"
 11#include "util.h"
 12#include "debug.h"
 13
 14static int process_event(struct perf_evlist **pevlist, union perf_event *event)
 15{
 16	struct perf_sample sample;
 17
 18	if (event->header.type == PERF_RECORD_HEADER_ATTR) {
 19		if (perf_event__process_attr(NULL, event, pevlist)) {
 20			pr_debug("perf_event__process_attr failed\n");
 21			return -1;
 22		}
 23		return 0;
 24	}
 25
 26	if (event->header.type >= PERF_RECORD_USER_TYPE_START)
 27		return -1;
 28
 29	if (!*pevlist)
 30		return -1;
 31
 32	if (perf_evlist__parse_sample(*pevlist, event, &sample)) {
 33		pr_debug("perf_evlist__parse_sample failed\n");
 34		return -1;
 35	}
 36
 37	return 0;
 38}
 39
 40static int process_events(union perf_event **events, size_t count)
 41{
 42	struct perf_evlist *evlist = NULL;
 43	int err = 0;
 44	size_t i;
 45
 46	for (i = 0; i < count && !err; i++)
 47		err = process_event(&evlist, events[i]);
 48
 49	perf_evlist__delete(evlist);
 
 50
 51	return err;
 52}
 53
 54struct test_attr_event {
 55	struct perf_event_header header;
 56	struct perf_event_attr	 attr;
 57	u64 id;
 58};
 59
 60/**
 61 * test__parse_no_sample_id_all - test parsing with no sample_id_all bit set.
 62 *
 63 * This function tests parsing data produced on kernel's that do not support the
 64 * sample_id_all bit.  Without the sample_id_all bit, non-sample events (such as
 65 * mmap events) do not have an id sample appended, and consequently logic
 66 * designed to determine the id will not work.  That case happens when there is
 67 * more than one selected event, so this test processes three events: 2
 68 * attributes representing the selected events and one mmap event.
 69 *
 70 * Return: %0 on success, %-1 if the test fails.
 71 */
 72int test__parse_no_sample_id_all(struct test *test __maybe_unused, int subtest __maybe_unused)
 73{
 74	int err;
 75
 76	struct test_attr_event event1 = {
 77		.header = {
 78			.type = PERF_RECORD_HEADER_ATTR,
 79			.size = sizeof(struct test_attr_event),
 
 
 80		},
 81		.id = 1,
 82	};
 83	struct test_attr_event event2 = {
 84		.header = {
 85			.type = PERF_RECORD_HEADER_ATTR,
 86			.size = sizeof(struct test_attr_event),
 
 
 87		},
 88		.id = 2,
 89	};
 90	struct mmap_event event3 = {
 91		.header = {
 92			.type = PERF_RECORD_MMAP,
 93			.size = sizeof(struct mmap_event),
 94		},
 95	};
 96	union perf_event *events[] = {
 97		(union perf_event *)&event1,
 98		(union perf_event *)&event2,
 99		(union perf_event *)&event3,
100	};
101
102	err = process_events(events, ARRAY_SIZE(events));
103	if (err)
104		return -1;
105
106	return 0;
107}

 
 
  1#include <linux/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#include "debug.h"
 11
 12static int process_event(struct perf_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 perf_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	if (evlist)
 48		perf_evlist__delete(evlist);
 49
 50	return err;
 51}
 52
 53struct test_attr_event {
 54	struct attr_event 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(int subtest __maybe_unused)
 71{
 72	int err;
 73
 74	struct test_attr_event event1 = {
 75		.attr = {
 76			.header = {
 77				.type = PERF_RECORD_HEADER_ATTR,
 78				.size = sizeof(struct test_attr_event),
 79			},
 80		},
 81		.id = 1,
 82	};
 83	struct test_attr_event event2 = {
 84		.attr = {
 85			.header = {
 86				.type = PERF_RECORD_HEADER_ATTR,
 87				.size = sizeof(struct test_attr_event),
 88			},
 89		},
 90		.id = 2,
 91	};
 92	struct mmap_event event3 = {
 93		.header = {
 94			.type = PERF_RECORD_MMAP,
 95			.size = sizeof(struct mmap_event),
 96		},
 97	};
 98	union perf_event *events[] = {
 99		(union perf_event *)&event1,
100		(union perf_event *)&event2,
101		(union perf_event *)&event3,
102	};
103
104	err = process_events(events, ARRAY_SIZE(events));
105	if (err)
106		return -1;
107
108	return 0;
109}