# Feed user stacks to ios/speedtracer
def plugin_init(kernel_target, config, lldb_obj, isConnected):
""" initialize the common data as required by plugin """
return None
def plugin_execute(command_name, result_output):
""" The xnu framework will call this function with output of a command.
The options for returning are as follows
returns: (status, outstr, further_cmds)
status: Boolean - specifying whether plugin execution succeeded(True) or failed. If failed then xnu will stop doing any further work with this command.
outstr: str - string output for user to be printed at the prompt
further_cmds: [] of str - this holds set of commands to execute at the lldb prompt. Empty array if nothing is required.
"""
import subprocess,os
status = True
outstr = ''
further_cmds = []
if command_name != 'showtaskuserstacks' :
status = False
else:
ios_process = subprocess.Popen([os.path.join(os.path.dirname(os.path.abspath(__file__)), "iosspeedtracer.sh")], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
outstr += ios_process.communicate(input=result_output)[0]
return (status, outstr, further_cmds)
def plugin_cleanup():
""" A cleanup call from xnu which is a signal to wrap up any open file descriptors etc. """
return None