136 lines
3.0 KiB
C
136 lines
3.0 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <stdarg.h>
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#include <stdio.h>
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#include <linux/perf_event.h>
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#include <perf/cpumap.h>
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#include <perf/threadmap.h>
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#include <perf/evsel.h>
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#include <internal/tests.h>
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static int libperf_print(enum libperf_print_level level,
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const char *fmt, va_list ap)
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{
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return vfprintf(stderr, fmt, ap);
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}
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static int test_stat_cpu(void)
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{
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struct perf_cpu_map *cpus;
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struct perf_evsel *evsel;
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struct perf_event_attr attr = {
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.type = PERF_TYPE_SOFTWARE,
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.config = PERF_COUNT_SW_CPU_CLOCK,
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};
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int err, cpu, tmp;
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cpus = perf_cpu_map__new(NULL);
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__T("failed to create cpus", cpus);
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evsel = perf_evsel__new(&attr);
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__T("failed to create evsel", evsel);
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err = perf_evsel__open(evsel, cpus, NULL);
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__T("failed to open evsel", err == 0);
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perf_cpu_map__for_each_cpu(cpu, tmp, cpus) {
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struct perf_counts_values counts = { .val = 0 };
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perf_evsel__read(evsel, cpu, 0, &counts);
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__T("failed to read value for evsel", counts.val != 0);
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}
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perf_evsel__close(evsel);
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perf_evsel__delete(evsel);
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perf_cpu_map__put(cpus);
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return 0;
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}
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static int test_stat_thread(void)
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{
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struct perf_counts_values counts = { .val = 0 };
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struct perf_thread_map *threads;
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struct perf_evsel *evsel;
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struct perf_event_attr attr = {
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.type = PERF_TYPE_SOFTWARE,
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.config = PERF_COUNT_SW_TASK_CLOCK,
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};
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int err;
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threads = perf_thread_map__new_dummy();
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__T("failed to create threads", threads);
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perf_thread_map__set_pid(threads, 0, 0);
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evsel = perf_evsel__new(&attr);
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__T("failed to create evsel", evsel);
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err = perf_evsel__open(evsel, NULL, threads);
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__T("failed to open evsel", err == 0);
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perf_evsel__read(evsel, 0, 0, &counts);
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__T("failed to read value for evsel", counts.val != 0);
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perf_evsel__close(evsel);
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perf_evsel__delete(evsel);
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perf_thread_map__put(threads);
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return 0;
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}
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static int test_stat_thread_enable(void)
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{
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struct perf_counts_values counts = { .val = 0 };
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struct perf_thread_map *threads;
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struct perf_evsel *evsel;
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struct perf_event_attr attr = {
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.type = PERF_TYPE_SOFTWARE,
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.config = PERF_COUNT_SW_TASK_CLOCK,
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.disabled = 1,
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};
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int err;
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threads = perf_thread_map__new_dummy();
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__T("failed to create threads", threads);
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perf_thread_map__set_pid(threads, 0, 0);
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evsel = perf_evsel__new(&attr);
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__T("failed to create evsel", evsel);
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err = perf_evsel__open(evsel, NULL, threads);
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__T("failed to open evsel", err == 0);
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perf_evsel__read(evsel, 0, 0, &counts);
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__T("failed to read value for evsel", counts.val == 0);
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err = perf_evsel__enable(evsel);
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__T("failed to enable evsel", err == 0);
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perf_evsel__read(evsel, 0, 0, &counts);
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__T("failed to read value for evsel", counts.val != 0);
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err = perf_evsel__disable(evsel);
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__T("failed to enable evsel", err == 0);
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perf_evsel__close(evsel);
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perf_evsel__delete(evsel);
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perf_thread_map__put(threads);
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return 0;
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}
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int main(int argc, char **argv)
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{
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__T_START;
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libperf_init(libperf_print);
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test_stat_cpu();
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test_stat_thread();
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test_stat_thread_enable();
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__T_OK;
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return 0;
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}
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