1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
#include <linux/types.h>
#include <stddef.h>
#include "tests.h"
#include "event.h"
#include "evlist.h"
#include "header.h"
#include "util.h"
#include "debug.h"
static int process_event(struct perf_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 (perf_evlist__parse_sample(*pevlist, event, &sample)) {
pr_debug("perf_evlist__parse_sample failed\n");
return -1;
}
return 0;
}
static int process_events(union perf_event **events, size_t count)
{
struct perf_evlist *evlist = NULL;
int err = 0;
size_t i;
for (i = 0; i < count && !err; i++)
err = process_event(&evlist, events[i]);
perf_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.
*/
int test__parse_no_sample_id_all(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 mmap_event event3 = {
.header = {
.type = PERF_RECORD_MMAP,
.size = sizeof(struct mmap_event),
},
};
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;
}
|
