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 8 struct { 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 15 SEC("raw_tp/sys_enter") 16 int 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 } 25