// SPDX-License-Identifier: GPL-2.0 #include "vmlinux.h" #include <bpf/bpf_helpers.h> #include <bpf/usdt.bpf.h> char _license[] SEC("license") = "GPL"; int count; SEC("usdt") int usdt0(struct pt_regs *ctx) { count++; return 0; }