static int create_perf_stat_counter(struct perf_evsel *evsel)
{
struct perf_event_attr *attr = &evsel->attr;
if (stat_config.scale)
attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED |
PERF_FORMAT_TOTAL_TIME_RUNNING;
attr->inherit = !no_inherit;
if (target__has_cpu(&target))
return perf_evsel__open_per_cpu(evsel, perf_evsel__cpus(evsel));
if (!target__has_task(&target) && perf_evsel__is_group_leader(evsel)) {
attr->disabled = 1;
if (!initial_delay)
attr->enable_on_exec = 1;
}
return perf_evsel__open_per_thread(evsel, evsel_list->threads);
}
int perf_evsel__fprintf(struct perf_evsel *evsel,
struct perf_attr_details *details, FILE *fp)
{
bool first = true;
int printed = 0;
if (details->event_group) {
struct perf_evsel *pos;
if (!perf_evsel__is_group_leader(evsel))
return 0;
if (evsel->nr_members > 1)
printed += fprintf(fp, "%s{", evsel->group_name ?: "");
printed += fprintf(fp, "%s", perf_evsel__name(evsel));
for_each_group_member(pos, evsel)
printed += fprintf(fp, ",%s", perf_evsel__name(pos));
if (evsel->nr_members > 1)
printed += fprintf(fp, "}");
goto out;
}
printed += fprintf(fp, "%s", perf_evsel__name(evsel));
if (details->verbose) {
printed += perf_event_attr__fprintf(fp, &evsel->attr,
__print_attr__fprintf, &first);
} else if (details->freq) {
const char *term = "sample_freq";
if (!evsel->attr.freq)
term = "sample_period";
printed += comma_fprintf(fp, &first, " %s=%" PRIu64,
term, (u64)evsel->attr.sample_freq);
}
if (details->trace_fields) {
struct format_field *field;
if (evsel->attr.type != PERF_TYPE_TRACEPOINT) {
printed += comma_fprintf(fp, &first, " (not a tracepoint)");
goto out;
}
field = evsel->tp_format->format.fields;
if (field == NULL) {
printed += comma_fprintf(fp, &first, " (no trace field)");
goto out;
}
printed += comma_fprintf(fp, &first, " trace_fields: %s", field->name);
field = field->next;
while (field) {
printed += comma_fprintf(fp, &first, "%s", field->name);
field = field->next;
}
}
out:
fputc('\n', fp);
return ++printed;
}
