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

 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