1// SPDX-License-Identifier: GPL-2.0
 2#include <linux/bpf.h>
 3#include <bpf/bpf_helpers.h>
 4#include <bpf/bpf_tracing.h>
 5
 6char _license[] SEC("license") = "GPL";
 7
 8struct {
 9	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
10	__uint(max_entries, 1);
11	__uint(key_size, sizeof(__u32));
12	__uint(value_size, sizeof(__u32));
13} jmp_table SEC(".maps");
14
15SEC("?fentry/bpf_fentry_test1")
16int BPF_PROG(test, int a)
17{
18	bpf_tail_call_static(ctx, &jmp_table, 0);
19	return 0;
20}
21
22SEC("fentry/bpf_fentry_test1")
23int BPF_PROG(call1, int a)
24{
25	return 0;
26}
27
28SEC("fentry/bpf_fentry_test1")
29int BPF_PROG(call2, int a)
30{
31	return 0;
32}

 1// SPDX-License-Identifier: GPL-2.0
 2#include <linux/bpf.h>
 3#include <bpf/bpf_helpers.h>
 4#include <bpf/bpf_tracing.h>
 5
 6char _license[] SEC("license") = "GPL";
 7
 8struct {
 9	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
10	__uint(max_entries, 1);
11	__uint(key_size, sizeof(__u32));
12	__uint(value_size, sizeof(__u32));
13} jmp_table SEC(".maps");
14
15SEC("?fentry/bpf_fentry_test1")
16int BPF_PROG(test, int a)
17{
18	bpf_tail_call_static(ctx, &jmp_table, 0);
19	return 0;
20}
21
22SEC("fentry/bpf_fentry_test1")
23int BPF_PROG(call1, int a)
24{
25	return 0;
26}
27
28SEC("fentry/bpf_fentry_test1")
29int BPF_PROG(call2, int a)
30{
31	return 0;
32}