| // SPDX-License-Identifier: GPL-2.0 |
| /* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */ |
| |
| #include "vmlinux.h" |
| #include <bpf/bpf_helpers.h> |
| #include <bpf/usdt.bpf.h> |
| |
| /* this file is linked together with test_usdt.c to validate that usdt.bpf.h |
| * can be included in multiple .bpf.c files forming single final BPF object |
| * file |
| */ |
| |
| extern int my_pid; |
| |
| int usdt_100_called; |
| int usdt_100_sum; |
| |
| SEC("usdt//proc/self/exe:test:usdt_100") |
| int BPF_USDT(usdt_100, int x) |
| { |
| if (my_pid != (bpf_get_current_pid_tgid() >> 32)) |
| return 0; |
| |
| __sync_fetch_and_add(&usdt_100_called, 1); |
| __sync_fetch_and_add(&usdt_100_sum, x); |
| |
| return 0; |
| } |
| |
| char _license[] SEC("license") = "GPL"; |
