1// SPDX-License-Identifier: GPL-2.0
 2/* Copyright (c) Meta Platforms, Inc. and affiliates. */
 3
 4#include <stdbool.h>
 5#include <linux/bpf.h>
 6#include <bpf/bpf_helpers.h>
 7
 8/* volatile to force a read, compiler may assume 0 otherwise */
 9const volatile int rovar1;
10int out1;
11
12/* Override weak symbol in test_subskeleton_lib */
13int var5 = 5;
14
15extern volatile bool CONFIG_BPF_SYSCALL __kconfig;
16
17extern int lib_routine(void);
18
19SEC("raw_tp/sys_enter")
20int handler1(const void *ctx)
21{
22	(void) CONFIG_BPF_SYSCALL;
23
24	out1 = lib_routine() * rovar1;
25	return 0;
26}
27
28char LICENSE[] SEC("license") = "GPL";