09  用户态跟踪：如何使用eBPF排查应用程序？

sudo bpftrace -e 'usdt:/usr/bin/python3:function__entry { printf("%s:%d %s\n", str(arg0), arg2, str(arg1))}'

# -*- coding: UTF-8 -*-

import socket
from socket import SOL_SOCKET, SO_REUSEADDR
import subprocess
import struct
import json

PORT = 18284

#简单TCP通信
def main():
    tcpSocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    print(tcpSocket)
    tcpSocket.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
    tcpSocket.bind(('127.0.0.1', PORT))
    tcpSocket.listen(5)
    print('start....')
    while True:
        conn, client_addr = tcpSocket.accept()
        print('new client connected ', conn, client_addr)
        while True:
            try:
                print('recv data ...')
                data = conn.recv(1024)
                if len(data) == 0:
                    break
                print('recv data is ', data)
                conn.send(data.upper())
            except ConnectionResetError:
                break

    conn.close()
    phone.close()
main()

/usr/lib/python3.9/socket.py:220 __init__
/usr/lib/python3.9/socket.py:243 __repr__
/usr/lib/python3.9/socket.py:513 family
/usr/lib/python3.9/socket.py:99 _intenum_converter
/usr/lib/python3.9/enum.py:358 __call__
/usr/lib/python3.9/enum.py:670 __new__
/usr/lib/python3.9/socket.py:519 type
/usr/lib/python3.9/socket.py:99 _intenum_converter
/usr/lib/python3.9/enum.py:358 __call__
/usr/lib/python3.9/enum.py:670 __new__
/usr/lib/python3.9/enum.py:740 __str__
/usr/lib/python3.9/enum.py:740 __str__
/usr/lib/python3.9/socket.py:286 accept

/usr/lib/python3.9/socket.py:513 family
/usr/lib/python3.9/socket.py:99 _intenum_converter
/usr/lib/python3.9/enum.py:358 __call__
/usr/lib/python3.9/enum.py:670 __new__
/usr/lib/python3.9/socket.py:519 type
/usr/lib/python3.9/socket.py:99 _intenum_converter
/usr/lib/python3.9/enum.py:358 __call__
/usr/lib/python3.9/enum.py:670 __new__
/usr/lib/python3.9/socket.py:220 __init__
/usr/lib/python3.9/socket.py:243 __repr__
/usr/lib/python3.9/socket.py:513 family
/usr/lib/python3.9/socket.py:99 _intenum_converter
/usr/lib/python3.9/enum.py:358 __call__
/usr/lib/python3.9/enum.py:670 __new__
/usr/lib/python3.9/socket.py:519 type
/usr/lib/python3.9/socket.py:99 _intenum_converter
/usr/lib/python3.9/enum.py:358 __call__
/usr/lib/python3.9/enum.py:670 __new__
/usr/lib/python3.9/enum.py:740 __str__
/usr/lib/python3.9/enum.py:740 __str__