test_fill_link_info.c

 1// SPDX-License-Identifier: GPL-2.0
 2/* Copyright (C) 2023 Yafang Shao <laoar.shao@gmail.com> */
 3
 4#include "vmlinux.h"
 5#include <bpf/bpf_tracing.h>
 6#include <stdbool.h>
 7
 8extern bool CONFIG_X86_KERNEL_IBT __kconfig __weak;
 9extern bool CONFIG_PPC_FTRACE_OUT_OF_LINE __kconfig __weak;
10extern bool CONFIG_KPROBES_ON_FTRACE __kconfig __weak;
11extern bool CONFIG_PPC64 __kconfig __weak;
12
13/* This function is here to have CONFIG_X86_KERNEL_IBT,
14 * CONFIG_PPC_FTRACE_OUT_OF_LINE, CONFIG_KPROBES_ON_FTRACE,
15 * CONFIG_PPC6 used and added to object BTF.
16 */
17int unused(void)
18{
19	return CONFIG_X86_KERNEL_IBT ||
20			CONFIG_PPC_FTRACE_OUT_OF_LINE ||
21			CONFIG_KPROBES_ON_FTRACE ||
22			CONFIG_PPC64 ? 0 : 1;
23}
24
25SEC("kprobe")
26int BPF_PROG(kprobe_run)
27{
28	return 0;
29}
30
31SEC("uprobe")
32int BPF_PROG(uprobe_run)
33{
34	return 0;
35}
36
37SEC("tracepoint")
38int BPF_PROG(tp_run)
39{
40	return 0;
41}
42
43SEC("perf_event")
44int event_run(void *ctx)
45{
46	return 0;
47}
48
49SEC("kprobe.multi")
50int BPF_PROG(kmulti_run)
51{
52	return 0;
53}
54
55SEC("uprobe.multi")
56int BPF_PROG(umulti_run)
57{
58	return 0;
59}
60
61char _license[] SEC("license") = "GPL";