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1// SPDX-License-Identifier: GPL-2.02#ifndef LINKED_LIST_H3#define LINKED_LIST_H4 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#endif57