waitpid_callback_kill_child

waitpid_callback_kill_child.py

def waitpid_callback(frame, bp_loc, dict):
	print ("waitpid() detected!")

	# let's attach to the child process: 

	# get the current process id
	curr_target = frame.thread.process.GetTarget()
	pid = frame.thread.process.GetProcessID()
	print ("current pid is %s\n" % str(pid))
	# let get the current filename of the current target
	file_name = curr_target.GetExecutable().GetFilename()
	print ("attempting to attach to any new instance of %s" % file_name)

	# we have to  detach from the parent process
	frame.thread.process.Detach()

	child_pid = get_child_pid(file_name, pid)

	# Let's attempt to attach to the child process
	listener = lldb.SBListener('listener')
	error = lldb.SBError()
	child = curr_target.AttachToProcessWithID(listener, child_pid, error)
	if not error.Success():
		print ("error %s\n", error.GetCString())
		raise Exception('Failed to attach to the process.')
		assert child.IsValid()
	else:
		print ("sucessfully attached to child, with pid : %s\n" % str(child.GetProcessID()))

	# we stop and kill the child
	print ("killing the child process")
	child.Stop()
	child.Kill()

	print ("bundlore_python_dump has finished, dumped python code is here: /tmp/dumped.py")
	# we stop and kill the parent
	frame.thread.process.Stop()
	frame.thread.process.Kill()