# A basic Plugin that creates performance reports from zprint output
kern_version = None
def plugin_init(kernel_target, config, lldb_obj, isConnected):
""" initialize the common data as required by plugin """
global kern_version
kern_version = str(kernel_target.version)
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.
"""
status = True
outstr = 'Nothing to be done here'
further_cmds = []
further_cmds.append("memstats -- --plugin zprint_perf_log ")
if command_name != 'zprint' :
status = False
else:
num_zones = len(result_output.split("\n")) -1
outstr += "Num of zones analyzed =" + str(num_zones) + "\n"
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