tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0-only
2/* Copyright (c) 2017 Facebook
3 */
4#include <stddef.h>
5#include <linux/bpf.h>
6#include <bpf/bpf_helpers.h>
7
8struct {
9 __uint(type, BPF_MAP_TYPE_ARRAY);
10 __uint(max_entries, 1);
11 __type(key, __u32);
12 __type(value, __u64);
13} test_map_id SEC(".maps");
14
15SEC("raw_tp/sys_enter")
16int test_obj_id(void *ctx)
17{
18 __u32 key = 0;
19 __u64 *value;
20
21 value = bpf_map_lookup_elem(&test_map_id, &key);
22
23 return 0;
24}