tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0
2// Copyright (c) 2017 Facebook
3
4#include <linux/ptrace.h>
5#include <linux/bpf.h>
6#include <bpf/bpf_helpers.h>
7#include <bpf/bpf_tracing.h>
8
9int kprobe_res = 0;
10int kretprobe_res = 0;
11int uprobe_res = 0;
12int uretprobe_res = 0;
13
14SEC("kprobe/sys_nanosleep")
15int handle_kprobe(struct pt_regs *ctx)
16{
17 kprobe_res = 1;
18 return 0;
19}
20
21SEC("kretprobe/sys_nanosleep")
22int BPF_KRETPROBE(handle_kretprobe)
23{
24 kretprobe_res = 2;
25 return 0;
26}
27
28SEC("uprobe/trigger_func")
29int handle_uprobe(struct pt_regs *ctx)
30{
31 uprobe_res = 3;
32 return 0;
33}
34
35SEC("uretprobe/trigger_func")
36int handle_uretprobe(struct pt_regs *ctx)
37{
38 uretprobe_res = 4;
39 return 0;
40}
41
42char _license[] SEC("license") = "GPL";