1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */ |
3 | |
4 | #include <vmlinux.h> |
5 | #include <bpf/bpf_tracing.h> |
6 | #include <bpf/bpf_helpers.h> |
7 | #include <bpf/bpf_core_read.h> |
8 | #include "bpf_experimental.h" |
9 | |
10 | struct node_data { |
11 | int key; |
12 | int data; |
13 | struct bpf_rb_node node; |
14 | }; |
15 | |
16 | struct node_data2 { |
17 | int key; |
18 | struct bpf_rb_node node; |
19 | int data; |
20 | }; |
21 | |
22 | static bool less2(struct bpf_rb_node *a, const struct bpf_rb_node *b) |
23 | { |
24 | struct node_data2 *node_a; |
25 | struct node_data2 *node_b; |
26 | |
27 | node_a = container_of(a, struct node_data2, node); |
28 | node_b = container_of(b, struct node_data2, node); |
29 | |
30 | return node_a->key < node_b->key; |
31 | } |
32 | |
33 | #define private(name) SEC(".data." #name) __hidden __attribute__((aligned(8))) |
34 | private(A) struct bpf_spin_lock glock; |
35 | private(A) struct bpf_rb_root groot __contains(node_data, node); |
36 | |
37 | SEC("tc" ) |
38 | long rbtree_api_add__add_wrong_type(void *ctx) |
39 | { |
40 | struct node_data2 *n; |
41 | |
42 | n = bpf_obj_new(typeof(*n)); |
43 | if (!n) |
44 | return 1; |
45 | |
46 | bpf_spin_lock(&glock); |
47 | bpf_rbtree_add(&groot, &n->node, less2); |
48 | bpf_spin_unlock(&glock); |
49 | return 0; |
50 | } |
51 | |
52 | char _license[] SEC("license" ) = "GPL" ; |
53 | |