109d8ad16SSong Liu // SPDX-License-Identifier: GPL-2.0
209d8ad16SSong Liu /* Copyright (c) 2020 Facebook */
309d8ad16SSong Liu 
409d8ad16SSong Liu #include "vmlinux.h"
509d8ad16SSong Liu #include <bpf/bpf_helpers.h>
609d8ad16SSong Liu #include <bpf/bpf_tracing.h>
709d8ad16SSong Liu 
809d8ad16SSong Liu __u32 count = 0;
909d8ad16SSong Liu __u32 on_cpu = 0xffffffff;
1009d8ad16SSong Liu 
1109d8ad16SSong Liu SEC("raw_tp/task_rename")
BPF_PROG(rename,struct task_struct * task,char * comm)1209d8ad16SSong Liu int BPF_PROG(rename, struct task_struct *task, char *comm)
1309d8ad16SSong Liu {
1409d8ad16SSong Liu 
1509d8ad16SSong Liu 	count++;
1609d8ad16SSong Liu 	if ((__u64) task == 0x1234ULL && (__u64) comm == 0x5678ULL) {
1709d8ad16SSong Liu 		on_cpu = bpf_get_smp_processor_id();
1800e8c44aSJohn Fastabend 		return (long)task + (long)comm;
1909d8ad16SSong Liu 	}
2009d8ad16SSong Liu 
2109d8ad16SSong Liu 	return 0;
2209d8ad16SSong Liu }
2309d8ad16SSong Liu 
2409d8ad16SSong Liu char _license[] SEC("license") = "GPL";
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