1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2023 Red Hat, Inc. */
3 #include <linux/bpf.h>
4 #include <bpf/bpf_helpers.h>
5 #include <bpf/bpf_tracing.h>
6 
7 char _license[] SEC("license") = "GPL";
8 
9 /* Dummy fentry bpf prog for testing fentry attachment chains. It's going to be
10  * a start of the chain.
11  */
12 SEC("fentry/bpf_testmod_fentry_test1")
BPF_PROG(test1,int a)13 int BPF_PROG(test1, int a)
14 {
15 	return 0;
16 }
17 
18 /* Dummy bpf prog for testing attach_btf presence when attaching an fentry
19  * program.
20  */
21 SEC("raw_tp/sys_enter")
BPF_PROG(fentry_target,struct pt_regs * regs,long id)22 int BPF_PROG(fentry_target, struct pt_regs *regs, long id)
23 {
24 	return 0;
25 }
26