perf_event__synthesize_comm
tgid = perf_event__synthesize_comm(tool, event,
tgid = perf_event__synthesize_comm(tool, comm_event, pid,
pid_t perf_event__synthesize_comm(const struct perf_tool *tool, union perf_event *event, pid_t pid, perf_event__handler_t process, struct machine *machine);