1// SPDX-License-Identifier: GPL-2.0 2/* Copyright Leon Hwang */ 3 4#include "vmlinux.h" 5#include <bpf/bpf_helpers.h> 6#include <bpf/bpf_tracing.h> 7 8int count = 0; 9 10SEC("fentry/subprog_tail") 11int BPF_PROG(fentry, struct sk_buff *skb) 12{ 13 count++; 14 15 return 0; 16} 17 18char _license[] SEC("license") = "GPL"; 19