medusa_debug.py

#!/usr/bin/python3
from subprocess import run, PIPE, Popen, CalledProcessError
from sys import exit
from os import chdir


def main():
    # TODO CHANGE PATH TO MEDUSA
    chdir('/home/user/medusa')
    try:
        run(['stty', '-F', '/dev/ttyS0', 'raw', '-echo'], check=True)
        # run(['stty', '-F', '/dev/ttyS1', 'raw', '-echo'], check=True)
    except CalledProcessError as e:
        print('Error', e)
        exit(-1)
    p = Popen(['socat', '-d', '-d', '/dev/ttyS0', 'pty'], bufsize=1,stderr=PIPE,
              universal_newlines=True)
    while p.poll() is None:
        out = p.stderr.readline()
        print(out, end='')
        if not out:
            print('Error reading socat')
            exit(-1)
        i = out.find('N PTY is')
        if i != -1:
            lines = out[i+9:].splitlines()
            pts = lines[0]
            print(pts)
            with open('remote.txt', 'w') as f:
                f.write('target remote ' + pts + '\n')
            break
    run(['gdb', 'vmlinux', '-x', 'remote.txt'])


if __name__ == '__main__':
    main()