1 // SPDX-License-Identifier: GPL-2.0
3 #include <bpf/bpf_helpers.h>
6 __uint(type, BPF_MAP_TYPE_PROG_ARRAY);
7 __uint(max_entries, 3);
8 __uint(key_size, sizeof(__u32));
9 __uint(value_size, sizeof(__u32));
10 } jmp_table SEC(".maps");
15 int subprog_tail_2(struct __sk_buff *skb)
17 bpf_tail_call_static(skb, &jmp_table, 2);
22 int subprog_tail_1(struct __sk_buff *skb)
24 bpf_tail_call_static(skb, &jmp_table, 1);
29 int subprog_tail(struct __sk_buff *skb)
31 bpf_tail_call_static(skb, &jmp_table, 0);
36 int bpf_func_1(struct __sk_buff *skb)
38 return subprog_tail_2(skb);
42 int bpf_func_2(struct __sk_buff *skb)
45 return subprog_tail_2(skb);
49 int bpf_func_0(struct __sk_buff *skb)
51 return subprog_tail_1(skb);
55 int entry(struct __sk_buff *skb)
57 return subprog_tail(skb);
60 char __license[] SEC("license") = "GPL";
61 int _version SEC("version") = 1;