bpf_get_stack_raw_tp 1022 kernel/trace/bpf_trace.c BPF_CALL_4(bpf_get_stack_raw_tp, struct bpf_raw_tracepoint_args *, args, bpf_get_stack_raw_tp 1039 kernel/trace/bpf_trace.c .func = bpf_get_stack_raw_tp,