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
9struct bar {
10 struct bpf_list_node node;
11 int data;
12};
13
14struct 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
22struct map_value {
23 struct bpf_spin_lock lock;
24 int data;
25 struct bpf_list_head head __contains(foo, node2);
26};
27
28struct 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
35struct array_map array_map SEC(".maps");
36struct array_map inner_map SEC(".maps");
37
38struct {
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
52private(A) struct bpf_spin_lock glock;
53private(A) struct bpf_list_head ghead __contains(foo, node2);
54private(B) struct bpf_spin_lock glock2;
55
56#endif
57

source code of linux/tools/testing/selftests/bpf/progs/linked_list.h