1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (c) 2017 Facebook
3
4 #include <vmlinux.h>
5 #include <bpf/bpf_helpers.h>
6
7 /* taken from /sys/kernel/tracing/events/sched/sched_switch/format */
8 struct sched_switch_args {
9 unsigned long long pad;
10 char prev_comm[TASK_COMM_LEN];
11 int prev_pid;
12 int prev_prio;
13 long long prev_state;
14 char next_comm[TASK_COMM_LEN];
15 int next_pid;
16 int next_prio;
17 };
18
19 SEC("tracepoint/sched/sched_switch")
20 int oncpu(struct sched_switch_args *ctx)
21 {
22 return 0;
23 }
24
25 char _license[] SEC("license") = "GPL";
26
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