perf_cpu_map__empty_new
adjusted[pmu_snc] = perf_cpu_map__empty_new(perf_cpu_map__nr(pmu->cpus));
map = perf_cpu_map__empty_new(weight);
map = perf_cpu_map__empty_new(end_cpu - start_cpu + 1 + !!any_cpu);
map = perf_cpu_map__empty_new(nr);
struct perf_cpu_map *perf_cpu_map__empty_new(int nr);
struct perf_cpu_map *cpus = perf_cpu_map__empty_new(1);