bpf_core_read_str
___core_read(bpf_core_read_str, bpf_core_read, \
size_t comm_length = bpf_core_read_str(payload, TASK_COMM_LEN, &task->comm);
size_t comm_length = bpf_core_read_str(payload, TASK_COMM_LEN, &task->comm);
bpf_core_read_str(&stg->comm, sizeof(stg->comm), &task->comm);
bpf_core_read_str(&task_comm, sizeof(task_comm), &task->comm);