tools/lldbmacros/atm.py

   1 from xnu import *
   2 from utils import *
   3
   4
   5 @lldb_type_summary(['atm_value', 'atm_value_t'])
   6 @header("{0: <20s} {1: <16s} {2: <20s} {3: <16s}".format("atm_value", "aid", "voucher_value", "sync"))
   7 def GetATMValueSummary(atm_value):
   8     """ Summarizes the atm_value
   9         params: atm_value = value object of type atm_value_t
  10         returns: string with the summary of the type.
  11     """
  12     format_str = "{0: <#020x} {1: <16d} {2: <#020x} {3: <16d}"
  13     out_string = format_str.format(atm_value, unsigned(atm_value.aid), atm_value, atm_value.sync)
  14     return out_string
  15
  16
  17 @lldb_type_summary(['atm_task_descriptor', 'atm_task_descriptor_t'])
  18 @header("{0: <20s} {1: <20s} {2: <16s} {3: <16s} {4: <10s}".format("task_descriptor", "trace_buffer", "buffer_size", "refcount", "flags"))
  19 def GetATMTaskDescriptorSummary(descriptor):
  20     """ Summarizes atm_task_descriptor object
  21         params: descriptor - value object of type atm_task_descriptor_t
  22         returns: string - containing the description.
  23     """
  24     format_str = "{0: <#020x} {1: <#020x} {2: <#016x} {3: <16d} {4: <10s}"
  25     flags_str = ""
  26     if unsigned(descriptor.flags) & 0x1:
  27         flags_str = "DEAD"
  28     out_string = format_str.format(descriptor, descriptor.trace_buffer, descriptor.trace_buffer_size, descriptor.reference_count, flags_str)
  29
  30     #if DEVELOPMENT
  31     if hasattr(descriptor, 'task'):
  32         out_string += "  " + GetTaskSummary(descriptor.task) + " "  + GetProcNameForTask(descriptor.task)
  33     #endif
  34
  35     return out_string
  36
  37 # Macro: showatmvaluelisteners
  38 @lldb_command('showatmvaluelisteners')
  39 def ShowATMValueListeners(cmd_args=None, cmd_options={}):
  40     """ show a list of listeners for an atm_value object.
  41         Usage: (lldb)showatmvaluelisteners <atm_value_t>
  42     """
  43     if not cmd_args:
  44         raise ArgumentError("Please provide arguments")
  45
  46     atm_val = kern.GetValueFromAddress(cmd_args[0], 'atm_value_t')
  47     print GetATMValueSummary.header
  48     print GetATMValueSummary(atm_val)
  49     header_str = "{0: <20s} ".format("#guard") + GetATMTaskDescriptorSummary.header
  50     #if DEVELOPMENT
  51     header_str += "  " +  GetTaskSummary.header + " procname"
  52     #endif
  53     print header_str
  54     for listener in IterateQueue(atm_val.listeners, 'atm_link_object_t', 'listeners_element'):
  55         listener_summary = "{0: <#020x}".format(listener.guard)
  56         listener_summary += " " + GetATMTaskDescriptorSummary(listener.descriptor)
  57         print listener_summary
  58     return
  59 # EndMacro: showatmvaluelisteners
  60
  61
  62 #if DEVELOPMENT
  63
  64 # Macro: showallatmallocatedvalueslist
  65 @lldb_command('showallatmallocatedvalueslist')
  66 def ShowAllATMAllocatedValuesList(cmd_args=None, cmd_options={}):
  67     """ A DEVELOPMENT macro that walks the list of all allocated atm_value objects
  68         and prints them.
  69         usage: (lldb) showallatmallocatedvalueslist
  70     """
  71     if not hasattr(kern.globals, 'atm_values_list'):
  72         print "It seems you are running a build of kernel that does not have the list of all atm_values_list."
  73         return False
  74     print GetATMValueSummary.header
  75     for v in IterateQueue(kern.globals.atm_values_list, 'atm_value_t', 'value_elt'):
  76         print GetATMValueSummary(v)
  77     return True
  78 # EndMacro: showallatmallocatedvalueslist
  79
  80 # Macro: showallatmdescriptors
  81 @lldb_command('showallatmdescriptors')
  82 def ShowAllATMDescriptors(cmd_args=None, cmd_options={}):
  83     """ A DEVELOPMENT macro that walks the list of all atm_descriptors_list
  84         and prints the summary for each.
  85         usage: (lldb) showallatmdescriptors
  86     """
  87     if not hasattr(kern.globals, 'atm_descriptors_list'):
  88         print "It seems you are running a build of kernel that does not have the list of all atm_descriptors_list."
  89         return False
  90
  91     print GetATMTaskDescriptorSummary.header
  92     for d in IterateQueue(kern.globals.atm_descriptors_list, 'atm_task_descriptor_t', 'descriptor_elt'):
  93         print GetATMTaskDescriptorSummary(d)
  94     return True
  95 # EndMacro
  96 #endif