33 lines
825 B
C
33 lines
825 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
/* Copyright (c) 2019 Facebook */
|
|
|
|
#include <stdbool.h>
|
|
#include <linux/bpf.h>
|
|
#include <bpf/bpf_helpers.h>
|
|
|
|
__u64 out__bpf_link_fops = -1;
|
|
__u64 out__bpf_link_fops1 = -1;
|
|
__u64 out__btf_size = -1;
|
|
__u64 out__per_cpu_start = -1;
|
|
|
|
extern const void bpf_link_fops __ksym;
|
|
extern const void __start_BTF __ksym;
|
|
extern const void __stop_BTF __ksym;
|
|
extern const void __per_cpu_start __ksym;
|
|
/* non-existing symbol, weak, default to zero */
|
|
extern const void bpf_link_fops1 __ksym __weak;
|
|
|
|
SEC("raw_tp/sys_enter")
|
|
int handler(const void *ctx)
|
|
{
|
|
out__bpf_link_fops = (__u64)&bpf_link_fops;
|
|
out__btf_size = (__u64)(&__stop_BTF - &__start_BTF);
|
|
out__per_cpu_start = (__u64)&__per_cpu_start;
|
|
|
|
out__bpf_link_fops1 = (__u64)&bpf_link_fops1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
char _license[] SEC("license") = "GPL";
|