1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun // Copyright (c) 2020 Facebook
3*4882a593Smuzhiyun
4*4882a593Smuzhiyun #include <linux/bpf.h>
5*4882a593Smuzhiyun #include <asm/unistd.h>
6*4882a593Smuzhiyun #include <bpf/bpf_helpers.h>
7*4882a593Smuzhiyun #include <bpf/bpf_tracing.h>
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun char _license[] SEC("license") = "GPL";
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun long hits = 0;
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun SEC("tp/syscalls/sys_enter_getpgid")
bench_trigger_tp(void * ctx)14*4882a593Smuzhiyun int bench_trigger_tp(void *ctx)
15*4882a593Smuzhiyun {
16*4882a593Smuzhiyun __sync_add_and_fetch(&hits, 1);
17*4882a593Smuzhiyun return 0;
18*4882a593Smuzhiyun }
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun SEC("raw_tp/sys_enter")
BPF_PROG(bench_trigger_raw_tp,struct pt_regs * regs,long id)21*4882a593Smuzhiyun int BPF_PROG(bench_trigger_raw_tp, struct pt_regs *regs, long id)
22*4882a593Smuzhiyun {
23*4882a593Smuzhiyun if (id == __NR_getpgid)
24*4882a593Smuzhiyun __sync_add_and_fetch(&hits, 1);
25*4882a593Smuzhiyun return 0;
26*4882a593Smuzhiyun }
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun SEC("kprobe/__x64_sys_getpgid")
bench_trigger_kprobe(void * ctx)29*4882a593Smuzhiyun int bench_trigger_kprobe(void *ctx)
30*4882a593Smuzhiyun {
31*4882a593Smuzhiyun __sync_add_and_fetch(&hits, 1);
32*4882a593Smuzhiyun return 0;
33*4882a593Smuzhiyun }
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun SEC("fentry/__x64_sys_getpgid")
bench_trigger_fentry(void * ctx)36*4882a593Smuzhiyun int bench_trigger_fentry(void *ctx)
37*4882a593Smuzhiyun {
38*4882a593Smuzhiyun __sync_add_and_fetch(&hits, 1);
39*4882a593Smuzhiyun return 0;
40*4882a593Smuzhiyun }
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun SEC("fentry.s/__x64_sys_getpgid")
bench_trigger_fentry_sleep(void * ctx)43*4882a593Smuzhiyun int bench_trigger_fentry_sleep(void *ctx)
44*4882a593Smuzhiyun {
45*4882a593Smuzhiyun __sync_add_and_fetch(&hits, 1);
46*4882a593Smuzhiyun return 0;
47*4882a593Smuzhiyun }
48*4882a593Smuzhiyun
49*4882a593Smuzhiyun SEC("fmod_ret/__x64_sys_getpgid")
bench_trigger_fmodret(void * ctx)50*4882a593Smuzhiyun int bench_trigger_fmodret(void *ctx)
51*4882a593Smuzhiyun {
52*4882a593Smuzhiyun __sync_add_and_fetch(&hits, 1);
53*4882a593Smuzhiyun return -22;
54*4882a593Smuzhiyun }
55