libperf evsel: Add missed puts and asserts

A missed evsel__close before evsel__delete was the source of leaking
perf events due to a hybrid test. Add asserts in debug builds so that
this shouldn't happen in the future. Add puts missing on the cpu map
and thread maps.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250617223356.2752099-4-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>

Author: captain5050

tools/lib/perf/evsel.c

@@ -42,6 +42,12 @@ struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr)
 
 void perf_evsel__delete(struct perf_evsel *evsel)
 {
+	assert(evsel->fd == NULL);  /* If not fds were not closed. */
+	assert(evsel->mmap == NULL); /* If not munmap wasn't called. */
+	assert(evsel->sample_id == NULL); /* If not free_id wasn't called. */
+	perf_cpu_map__put(evsel->cpus);
+	perf_cpu_map__put(evsel->own_cpus);
+	perf_thread_map__put(evsel->threads);
 	free(evsel);
 }