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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) Meta Platforms, Inc. and affiliates. */
#include <stdbool.h>
#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
/* volatile to force a read */
const volatile int var1;
volatile int var2 = 1;
struct {
int var3_1;
__s64 var3_2;
} var3;
int libout1;
extern volatile bool CONFIG_BPF_SYSCALL __kconfig;
int var4[4];
__weak int var5 SEC(".data");
/* Fully contained within library extern-and-definition */
extern int var6;
int var7 SEC(".data.custom");
int (*fn_ptr)(void);
struct {
__uint(type, BPF_MAP_TYPE_HASH);
__type(key, __u32);
__type(value, __u32);
__uint(max_entries, 16);
} map1 SEC(".maps");
extern struct {
__uint(type, BPF_MAP_TYPE_HASH);
__type(key, __u32);
__type(value, __u32);
__uint(max_entries, 16);
} map2 SEC(".maps");
int lib_routine(void)
{
__u32 key = 1, value = 2;
(void) CONFIG_BPF_SYSCALL;
bpf_map_update_elem(&map2, &key, &value, BPF_ANY);
libout1 = var1 + var2 + var3.var3_1 + var3.var3_2 + var5 + var6;
return libout1;
}
SEC("perf_event")
int lib_perf_handler(struct pt_regs *ctx)
{
return 0;
}
char LICENSE[] SEC("license") = "GPL";
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