| // SPDX-License-Identifier: GPL-2.0 |
| /* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */ |
| |
| #include "vmlinux.h" |
| #include <bpf/bpf_helpers.h> |
| #include <bpf/bpf_tracing.h> |
| |
| char _license[] SEC("license") = "GPL"; |
| |
| SEC("?fentry/bpf_spin_lock") |
| int BPF_PROG(test_spin_lock, struct bpf_spin_lock *lock) |
| { |
| return 0; |
| } |
| |
| SEC("?fentry/bpf_spin_unlock") |
| int BPF_PROG(test_spin_unlock, struct bpf_spin_lock *lock) |
| { |
| return 0; |
| } |
| |
| SEC("?fentry/__rcu_read_lock") |
| int BPF_PROG(tracing_deny) |
| { |
| return 0; |
| } |
| |
| SEC("?fexit/do_exit") |
| int BPF_PROG(fexit_noreturns) |
| { |
| return 0; |
| } |