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")
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")
22 int BPF_PROG(fentry_target, struct pt_regs *regs, long id)
23 {
24 return 0;
25 }
26
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