125763b3cSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 2bd4aed0eSJiong Wang /* Copyright (c) 2017 Facebook 3bd4aed0eSJiong Wang */ 4bd4aed0eSJiong Wang #include <stddef.h> 5bd4aed0eSJiong Wang #include <linux/bpf.h> 63e689141SToke Høiland-Jørgensen #include <bpf/bpf_helpers.h> 7*c8ed6685SAndrii Nakryiko #include "bpf_misc.h" 8bd4aed0eSJiong Wang 91639b17cSAndrii Nakryiko struct { 101639b17cSAndrii Nakryiko __uint(type, BPF_MAP_TYPE_ARRAY); 111639b17cSAndrii Nakryiko __uint(max_entries, 1); 121639b17cSAndrii Nakryiko __type(key, __u32); 131639b17cSAndrii Nakryiko __type(value, __u64); 141639b17cSAndrii Nakryiko } test_map_id SEC(".maps"); 15bd4aed0eSJiong Wang 162c2837b0SAndrii Nakryiko SEC("raw_tp/sys_enter") test_obj_id(void * ctx)172c2837b0SAndrii Nakryikoint test_obj_id(void *ctx) 18bd4aed0eSJiong Wang { 19bd4aed0eSJiong Wang __u32 key = 0; 20bd4aed0eSJiong Wang __u64 *value; 21bd4aed0eSJiong Wang 22bd4aed0eSJiong Wang value = bpf_map_lookup_elem(&test_map_id, &key); 23*c8ed6685SAndrii Nakryiko __sink(value); 24bd4aed0eSJiong Wang 252c2837b0SAndrii Nakryiko return 0; 26bd4aed0eSJiong Wang } 27