1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (c) 2019 Facebook */ 3 #include "vmlinux.h" 4 #include <bpf/bpf_helpers.h> 5 #include <bpf/bpf_tracing.h> 6 7 struct task_struct; 8 9 SEC("kprobe/__set_task_comm") 10 int BPF_KPROBE(prog1, struct task_struct *tsk, const char *buf, bool exec) 11 { 12 return !tsk; 13 } 14 15 SEC("kretprobe/__set_task_comm") 16 int BPF_KRETPROBE(prog2, int ret) 17 { 18 return ret; 19 } 20 21 SEC("raw_tp/task_rename") 22 int prog3(struct bpf_raw_tracepoint_args *ctx) 23 { 24 return !ctx->args[0]; 25 } 26 27 SEC("fentry/__set_task_comm") 28 int BPF_PROG(prog4, struct task_struct *tsk, const char *buf, bool exec) 29 { 30 return 0; 31 } 32 33 SEC("fexit/__set_task_comm") 34 int BPF_PROG(prog5, struct task_struct *tsk, const char *buf, bool exec) 35 { 36 return 0; 37 } 38 39 char _license[] SEC("license") = "GPL"; 40