hello_world.py

#!/usr/bin/env python
# Copyright (c) PLUMgrid, Inc.
# Licensed under the Apache License, Version 2.0 (the "License")

# run in project examples directory with:
# sudo ./hello_world.py"

from bpf import BPF
from subprocess import call

prog = """
int hello(void *ctx) {
  bpf_trace_printk("Hello, World!\\n");
  return 0;
};
"""
b = BPF(text=prog)
b.attach_kprobe(event="sys_clone", fn_name="hello")
b.trace_print()