24 lines · c
1// SPDX-License-Identifier: GPL-2.02// Copyright (c) 2019 Facebook3#include <linux/sched.h>4#include <linux/ptrace.h>5#include <stdint.h>6#include <stddef.h>7#include <stdbool.h>8#include <linux/bpf.h>9#include <bpf/bpf_helpers.h>10#include <bpf/bpf_tracing.h>11 12char _license[] SEC("license") = "GPL";13 14SEC("raw_tracepoint/consume_skb")15int while_true(struct pt_regs *ctx)16{17 volatile __u64 i = 0, sum = 0;18 do {19 i++;20 sum += PT_REGS_RC(ctx);21 } while (i < 0x100000000ULL);22 return sum;23}24