blob: 717dab14322be5bef64b9205061169dd602bdaa3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2019 Facebook
#include <linux/sched.h>
#include <linux/ptrace.h>
#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
char _license[] SEC("license") = "GPL";
SEC("raw_tracepoint/consume_skb")
int while_true(struct pt_regs *ctx)
{
volatile __u64 i = 0, sum = 0;
do {
i++;
sum += PT_REGS_RC(ctx);
} while (i < 0x100000000ULL);
return sum;
}
|
