1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */ 3 4 #include "vmlinux.h" 5 #include <bpf/bpf_helpers.h> 6 #include <bpf/bpf_tracing.h> 7 8 char _license[] SEC("license") = "GPL"; 9 10 SEC("?fentry/bpf_spin_lock") 11 int BPF_PROG(test_spin_lock, struct bpf_spin_lock *lock) 12 { 13 return 0; 14 } 15 16 SEC("?fentry/bpf_spin_unlock") 17 int BPF_PROG(test_spin_unlock, struct bpf_spin_lock *lock) 18 { 19 return 0; 20 } 21 22 SEC("?fentry/__rcu_read_lock") 23 int BPF_PROG(tracing_deny) 24 { 25 return 0; 26 } 27 28 SEC("?fexit/do_exit") 29 int BPF_PROG(fexit_noreturns) 30 { 31 return 0; 32 } 33