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 /* BTF load should fail as bpf_rb_root __contains this type and points to 11 * 'node', but 'node' is not a bpf_rb_node 12 */ 13 struct node_data { 14 int key; 15 int data; 16 struct bpf_list_node node; 17 }; 18 19 #define private(name) SEC(".data." #name) __hidden __attribute__((aligned(8))) 20 private(A) struct bpf_spin_lock glock; 21 private(A) struct bpf_rb_root groot __contains(node_data, node); 22 23 SEC("tc") 24 long rbtree_api_add__wrong_node_type(void *ctx) 25 { 26 struct node_data *n; 27 28 n = bpf_obj_new(typeof(*n)); 29 if (!n) 30 return 1; 31 32 bpf_spin_lock(&glock); 33 bpf_rbtree_first(&groot); 34 bpf_spin_unlock(&glock); 35 return 0; 36 } 37 38 char _license[] SEC("license") = "GPL"; 39