1*215249f6SDave Marchevsky // SPDX-License-Identifier: GPL-2.0 2*215249f6SDave Marchevsky /* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */ 3*215249f6SDave Marchevsky 4*215249f6SDave Marchevsky #include <vmlinux.h> 5*215249f6SDave Marchevsky #include <bpf/bpf_tracing.h> 6*215249f6SDave Marchevsky #include <bpf/bpf_helpers.h> 7*215249f6SDave Marchevsky #include <bpf/bpf_core_read.h> 8*215249f6SDave Marchevsky #include "bpf_experimental.h" 9*215249f6SDave Marchevsky 10*215249f6SDave Marchevsky /* BTF load should fail as bpf_rb_root __contains this type and points to 11*215249f6SDave Marchevsky * 'node', but 'node' is not a bpf_rb_node 12*215249f6SDave Marchevsky */ 13*215249f6SDave Marchevsky struct node_data { 14*215249f6SDave Marchevsky int key; 15*215249f6SDave Marchevsky int data; 16*215249f6SDave Marchevsky struct bpf_list_node node; 17*215249f6SDave Marchevsky }; 18*215249f6SDave Marchevsky 19*215249f6SDave Marchevsky #define private(name) SEC(".data." #name) __hidden __attribute__((aligned(8))) 20*215249f6SDave Marchevsky private(A) struct bpf_spin_lock glock; 21*215249f6SDave Marchevsky private(A) struct bpf_rb_root groot __contains(node_data, node); 22*215249f6SDave Marchevsky 23*215249f6SDave Marchevsky SEC("tc") rbtree_api_add__wrong_node_type(void * ctx)24*215249f6SDave Marchevskylong rbtree_api_add__wrong_node_type(void *ctx) 25*215249f6SDave Marchevsky { 26*215249f6SDave Marchevsky struct node_data *n; 27*215249f6SDave Marchevsky 28*215249f6SDave Marchevsky n = bpf_obj_new(typeof(*n)); 29*215249f6SDave Marchevsky if (!n) 30*215249f6SDave Marchevsky return 1; 31*215249f6SDave Marchevsky 32*215249f6SDave Marchevsky bpf_spin_lock(&glock); 33*215249f6SDave Marchevsky bpf_rbtree_first(&groot); 34*215249f6SDave Marchevsky bpf_spin_unlock(&glock); 35*215249f6SDave Marchevsky return 0; 36*215249f6SDave Marchevsky } 37*215249f6SDave Marchevsky 38*215249f6SDave Marchevsky char _license[] SEC("license") = "GPL"; 39