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review.trustedfirmware.org / hafnium / third_party / linux.git / 0e64123141f3854e695eb4924d82b52856691466 / . / tools / perf / lib / tests / test-evsel.c
blob: 1b6c4285ac2b90e000dea93b3b908b8671a206aa [file] [log] [blame]
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame]1// SPDX-License-Identifier: GPL-2.0
2#include <stdarg.h>
3#include <stdio.h>
4#include <linux/perf_event.h>
5#include <perf/cpumap.h>
6#include <perf/threadmap.h>
7#include <perf/evsel.h>
8#include <internal/tests.h>
9
10static int libperf_print(enum libperf_print_level level,
11 const char *fmt, va_list ap)
12{
13 return vfprintf(stderr, fmt, ap);
14}
15
16static int test_stat_cpu(void)
17{
18 struct perf_cpu_map *cpus;
19 struct perf_evsel *evsel;
20 struct perf_event_attr attr = {
21 .type = PERF_TYPE_SOFTWARE,
22 .config = PERF_COUNT_SW_CPU_CLOCK,
23 };
24 int err, cpu, tmp;
25
26 cpus = perf_cpu_map__new(NULL);
27 __T("failed to create cpus", cpus);
28
29 evsel = perf_evsel__new(&attr);
30 __T("failed to create evsel", evsel);
31
32 err = perf_evsel__open(evsel, cpus, NULL);
33 __T("failed to open evsel", err == 0);
34
35 perf_cpu_map__for_each_cpu(cpu, tmp, cpus) {
36 struct perf_counts_values counts = { .val = 0 };
37
38 perf_evsel__read(evsel, cpu, 0, &counts);
39 __T("failed to read value for evsel", counts.val != 0);
40 }
41
42 perf_evsel__close(evsel);
43 perf_evsel__delete(evsel);
44
45 perf_cpu_map__put(cpus);
46 return 0;
47}
48
49static int test_stat_thread(void)
50{
51 struct perf_counts_values counts = { .val = 0 };
52 struct perf_thread_map *threads;
53 struct perf_evsel *evsel;
54 struct perf_event_attr attr = {
55 .type = PERF_TYPE_SOFTWARE,
56 .config = PERF_COUNT_SW_TASK_CLOCK,
57 };
58 int err;
59
60 threads = perf_thread_map__new_dummy();
61 __T("failed to create threads", threads);
62
63 perf_thread_map__set_pid(threads, 0, 0);
64
65 evsel = perf_evsel__new(&attr);
66 __T("failed to create evsel", evsel);
67
68 err = perf_evsel__open(evsel, NULL, threads);
69 __T("failed to open evsel", err == 0);
70
71 perf_evsel__read(evsel, 0, 0, &counts);
72 __T("failed to read value for evsel", counts.val != 0);
73
74 perf_evsel__close(evsel);
75 perf_evsel__delete(evsel);
76
77 perf_thread_map__put(threads);
78 return 0;
79}
80
81static int test_stat_thread_enable(void)
82{
83 struct perf_counts_values counts = { .val = 0 };
84 struct perf_thread_map *threads;
85 struct perf_evsel *evsel;
86 struct perf_event_attr attr = {
87 .type = PERF_TYPE_SOFTWARE,
88 .config = PERF_COUNT_SW_TASK_CLOCK,
89 .disabled = 1,
90 };
91 int err;
92
93 threads = perf_thread_map__new_dummy();
94 __T("failed to create threads", threads);
95
96 perf_thread_map__set_pid(threads, 0, 0);
97
98 evsel = perf_evsel__new(&attr);
99 __T("failed to create evsel", evsel);
100
101 err = perf_evsel__open(evsel, NULL, threads);
102 __T("failed to open evsel", err == 0);
103
104 perf_evsel__read(evsel, 0, 0, &counts);
105 __T("failed to read value for evsel", counts.val == 0);
106
107 err = perf_evsel__enable(evsel);
108 __T("failed to enable evsel", err == 0);
109
110 perf_evsel__read(evsel, 0, 0, &counts);
111 __T("failed to read value for evsel", counts.val != 0);
112
113 err = perf_evsel__disable(evsel);
114 __T("failed to enable evsel", err == 0);
115
116 perf_evsel__close(evsel);
117 perf_evsel__delete(evsel);
118
119 perf_thread_map__put(threads);
120 return 0;
121}
122
123int main(int argc, char **argv)
124{
125 __T_START;
126
127 libperf_init(libperf_print);
128
129 test_stat_cpu();
130 test_stat_thread();
131 test_stat_thread_enable();
132
133 __T_OK;
134 return 0;
135}