test_access_variable_array.c

 1// SPDX-License-Identifier: GPL-2.0
 2/* Copyright (c) 2023 Bytedance */
 3
 4#include "vmlinux.h"
 5#include <bpf/bpf_helpers.h>
 6#include <bpf/bpf_tracing.h>
 7
 8unsigned long span = 0;
 9
10SEC("fentry/sched_balance_rq")
11int BPF_PROG(fentry_fentry, int this_cpu, struct rq *this_rq,
12		struct sched_domain *sd)
13{
14	span = sd->span[0];
15
16	return 0;
17}
18
19char _license[] SEC("license") = "GPL";