1 // SPDX-License-Identifier: GPL-2.0
2 #ifndef LINKED_LIST_H
3 #define LINKED_LIST_H
4
5 #include <vmlinux.h>
6 #include <bpf/bpf_helpers.h>
7 #include "bpf_experimental.h"
8
9 struct bar {
10 struct bpf_list_node node;
11 int data;
12 };
13
14 struct foo {
15 struct bpf_list_node node;
16 struct bpf_list_head head __contains(bar, node);
17 struct bpf_spin_lock lock;
18 int data;
19 struct bpf_list_node node2;
20 };
21
22 struct map_value {
23 struct bpf_spin_lock lock;
24 int data;
25 struct bpf_list_head head __contains(foo, node2);
26 };
27
28 struct array_map {
29 __uint(type, BPF_MAP_TYPE_ARRAY);
30 __type(key, int);
31 __type(value, struct map_value);
32 __uint(max_entries, 1);
33 };
34
35 struct array_map array_map SEC(".maps");
36 struct array_map inner_map SEC(".maps");
37
38 struct {
39 __uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
40 __uint(max_entries, 1);
41 __type(key, int);
42 __type(value, int);
43 __array(values, struct array_map);
44 } map_of_maps SEC(".maps") = {
45 .values = {
46 [0] = &inner_map,
47 },
48 };
49
50 #define private(name) SEC(".bss." #name) __hidden __attribute__((aligned(8)))
51
52 private(A) struct bpf_spin_lock glock;
53 private(A) struct bpf_list_head ghead __contains(foo, node2);
54 private(B) struct bpf_spin_lock glock2;
55
56 #endif
57
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