162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 262306a36Sopenharmony_ci/* Copyright (c) 2019 Facebook */ 362306a36Sopenharmony_ci 462306a36Sopenharmony_ci#include <stdbool.h> 562306a36Sopenharmony_ci#include <linux/bpf.h> 662306a36Sopenharmony_ci#include <bpf/bpf_helpers.h> 762306a36Sopenharmony_ci 862306a36Sopenharmony_ci__u64 out__bpf_link_fops = -1; 962306a36Sopenharmony_ci__u64 out__bpf_link_fops1 = -1; 1062306a36Sopenharmony_ci__u64 out__btf_size = -1; 1162306a36Sopenharmony_ci__u64 out__per_cpu_start = -1; 1262306a36Sopenharmony_ci 1362306a36Sopenharmony_ciextern const void bpf_link_fops __ksym; 1462306a36Sopenharmony_ciextern const void __start_BTF __ksym; 1562306a36Sopenharmony_ciextern const void __stop_BTF __ksym; 1662306a36Sopenharmony_ciextern const void __per_cpu_start __ksym; 1762306a36Sopenharmony_ci/* non-existing symbol, weak, default to zero */ 1862306a36Sopenharmony_ciextern const void bpf_link_fops1 __ksym __weak; 1962306a36Sopenharmony_ci 2062306a36Sopenharmony_ciSEC("raw_tp/sys_enter") 2162306a36Sopenharmony_ciint handler(const void *ctx) 2262306a36Sopenharmony_ci{ 2362306a36Sopenharmony_ci out__bpf_link_fops = (__u64)&bpf_link_fops; 2462306a36Sopenharmony_ci out__btf_size = (__u64)(&__stop_BTF - &__start_BTF); 2562306a36Sopenharmony_ci out__per_cpu_start = (__u64)&__per_cpu_start; 2662306a36Sopenharmony_ci 2762306a36Sopenharmony_ci out__bpf_link_fops1 = (__u64)&bpf_link_fops1; 2862306a36Sopenharmony_ci 2962306a36Sopenharmony_ci return 0; 3062306a36Sopenharmony_ci} 3162306a36Sopenharmony_ci 3262306a36Sopenharmony_cichar _license[] SEC("license") = "GPL"; 33