1// SPDX-License-Identifier: GPL-2.0
2// Copyright (c) 2020 Facebook
3
4#include <linux/bpf.h>
5#include <asm/unistd.h>
6#include <bpf/bpf_helpers.h>
7#include <bpf/bpf_tracing.h>
8
9char _license[] SEC("license") = "GPL";
10
11long hits = 0;
12
13SEC("tp/syscalls/sys_enter_getpgid")
14int bench_trigger_tp(void *ctx)
15{
16	__sync_add_and_fetch(&hits, 1);
17	return 0;
18}
19
20SEC("raw_tp/sys_enter")
21int BPF_PROG(bench_trigger_raw_tp, struct pt_regs *regs, long id)
22{
23	if (id == __NR_getpgid)
24		__sync_add_and_fetch(&hits, 1);
25	return 0;
26}
27
28SEC("kprobe/__x64_sys_getpgid")
29int bench_trigger_kprobe(void *ctx)
30{
31	__sync_add_and_fetch(&hits, 1);
32	return 0;
33}
34
35SEC("fentry/__x64_sys_getpgid")
36int bench_trigger_fentry(void *ctx)
37{
38	__sync_add_and_fetch(&hits, 1);
39	return 0;
40}
41
42SEC("fentry.s/__x64_sys_getpgid")
43int bench_trigger_fentry_sleep(void *ctx)
44{
45	__sync_add_and_fetch(&hits, 1);
46	return 0;
47}
48
49SEC("fmod_ret/__x64_sys_getpgid")
50int bench_trigger_fmodret(void *ctx)
51{
52	__sync_add_and_fetch(&hits, 1);
53	return -22;
54}
55