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#!/usr/bin/python
import lldb
import shlex
import sys
from Tkinter import *
import ttk
def get_item_dictionary_for_sbvalue(v, include_typename):
'''Given an lldb.SBValue, create an item dictionary for that value and return it
The dictionary must have the following key/value pairs:
'values' - must be a list of string values for each column defined in self.get_column_definitions()
'children' - a boolean value that indicates if an item has children or not
'''
name = v.name
if name is None:
name = ''
if include_typename:
typename = v.type
if typename is None:
typename = ''
value = v.value
if value is None:
value = ''
summary = v.summary
if summary is None:
summary = ''
if include_typename:
return { 'values' : [name, typename, value, summary],
'children' : v.MightHaveChildren(),
'type' : 'SBValue',
'object' : v }
else:
return { 'values' : [name, value, summary],
'children' : v.MightHaveChildren(),
'type' : 'SBValue',
'object' : v }
def get_item_dictionary_for_process(process):
id = process.GetProcessID()
num_threads = process.GetNumThreads()
value = str(process.GetProcessID())
summary = process.target.executable.fullpath
return { 'values' : ['process', value, summary],
'children' : num_threads > 0,
'type' : 'SBProcess',
'object' : process }
def get_item_dictionary_for_thread(thread):
num_frames = thread.GetNumFrames()
value = '0x%x' % (thread.GetThreadID())
summary = '%u frames' % (num_frames)
return { 'values' : ['thread #%u' % (thread.GetIndexID()), value, summary],
'children' : num_frames > 0,
'type' : 'SBThread',
'object' : thread }
def get_item_dictionary_for_frame(frame):
id = frame.GetFrameID()
value = '0x%16.16x' % (frame.GetPC())
stream = lldb.SBStream()
frame.GetDescription(stream)
summary = stream.GetData().split("`")[1]
return { 'values' : ['frame #%u' % (id), value, summary],
'children' : frame.GetVariables(True, True, True, True).GetSize() > 0,
'type' : 'SBFrame',
'object' : frame }
class ProcessTreeDelegate(object):
def __init__(self, process):
self.process = process
def get_column_definitions(self):
'''Return an array of column definition dictionaries'''
return [{ 'id' : '#0' , 'text' : 'Name' , 'anchor' : W , 'stretch' : 0 },
{ 'id' : 'value' , 'text' : 'Value' , 'anchor' : W , 'stretch' : 0 },
{ 'id' : 'summary', 'text' : 'Summary', 'anchor' : W , 'stretch' : 1 }]
def get_item_dictionary(self, sbvalue):
'''Given an lldb.SBValue, create an item dictionary for that value and return it
The dictionary must have the following key/value pairs:
'values' - must be a list of string values for each column defined in self.get_column_definitions()
'children' - a boolean value that indicates if an item has children or not
'''
def get_child_item_dictionaries(self, parent_item_dict):
'''Given an lldb.SBValue, create an item dictionary for that value and return it'''
item_dicts = list()
if parent_item_dict is None:
# Create root items if parent_item_dict is None
item_dicts.append(get_item_dictionary_for_process(self.process))
else:
# Get children for a specified item given its item dictionary
item_type = parent_item_dict['type']
if item_type == 'SBProcess':
for thread in parent_item_dict['object']:
item_dicts.append(get_item_dictionary_for_thread(thread))
elif item_type == 'SBThread':
for frame in parent_item_dict['object']:
item_dicts.append(get_item_dictionary_for_frame(frame))
elif item_type == 'SBFrame':
frame = parent_item_dict['object']
variables = frame.GetVariables(True, True, True, True)
n = variables.GetSize()
for i in range(n):
item_dicts.append(get_item_dictionary_for_sbvalue(variables[i], False))
elif item_type == 'SBValue':
sbvalue = parent_item_dict['object']
if sbvalue.IsValid():
for i in range(sbvalue.num_children):
item_dicts.append(get_item_dictionary_for_sbvalue(sbvalue.GetChildAtIndex(i), False))
return item_dicts
class VariableTreeDelegate(object):
def __init__(self, frame):
self.frame = frame
def get_column_definitions(self):
'''Return an array of column definition dictionaries'''
return [{ 'id' : '#0' , 'text' : 'Name' , 'anchor' : W , 'stretch' : 0 },
{ 'id' : 'type' , 'text' : 'Type' , 'anchor' : W , 'stretch' : 0 },
{ 'id' : 'value' , 'text' : 'Value' , 'anchor' : W , 'stretch' : 0 },
{ 'id' : 'summary', 'text' : 'Summary', 'anchor' : W , 'stretch' : 1 }]
def get_child_item_dictionaries(self, parent_item_dict):
'''Given an lldb.SBValue, create an item dictionary for that value and return it'''
item_dicts = list()
if parent_item_dict is None:
# Create root items if parent_item_dict is None
variables = self.frame.GetVariables(True, True, True, True)
n = variables.GetSize()
for i in range(n):
item_dicts.append(get_item_dictionary_for_sbvalue(variables[i], True))
else:
# Get children for a specified item given its item dictionary
sbvalue = parent_item_dict['object']
if sbvalue.IsValid():
for i in range(sbvalue.num_children):
item_dicts.append(get_item_dictionary_for_sbvalue(sbvalue.GetChildAtIndex(i), True))
return item_dicts
class DelegateTree(ttk.Frame):
def __init__(self, delegate, title, name):
ttk.Frame.__init__(self, name=name)
self.pack(expand=Y, fill=BOTH)
self.master.title(title)
self.delegate = delegate
self.item_id_to_item_dict = dict()
frame = Frame(self)
frame.pack(side=TOP, fill=BOTH, expand=Y)
self._create_treeview(frame)
self._populate_root()
def _create_treeview(self, parent):
frame = ttk.Frame(parent)
frame.pack(side=TOP, fill=BOTH, expand=Y)
columns_dicts = self.delegate.get_column_definitions()
column_ids = list()
for i in range(1,len(columns_dicts)):
column_ids.append(columns_dicts[i]['id'])
# create the tree and scrollbars
self.tree = ttk.Treeview(columns=column_ids)
scroll_bar_v = ttk.Scrollbar(orient=VERTICAL, command= self.tree.yview)
scroll_bar_h = ttk.Scrollbar(orient=HORIZONTAL, command= self.tree.xview)
self.tree['yscroll'] = scroll_bar_v.set
self.tree['xscroll'] = scroll_bar_h.set
# setup column headings and columns properties
for columns_dict in columns_dicts:
self.tree.heading(columns_dict['id'], text=columns_dict['text'], anchor=columns_dict['anchor'])
self.tree.column(columns_dict['id'], stretch=columns_dict['stretch'])
# add tree and scrollbars to frame
self.tree.grid(in_=frame, row=0, column=0, sticky=NSEW)
scroll_bar_v.grid(in_=frame, row=0, column=1, sticky=NS)
scroll_bar_h.grid(in_=frame, row=1, column=0, sticky=EW)
# set frame resizing priorities
frame.rowconfigure(0, weight=1)
frame.columnconfigure(0, weight=1)
# action to perform when a node is expanded
self.tree.bind('<<TreeviewOpen>>', self._update_tree)
def insert_items(self, parent_id, item_dicts):
for item_dict in item_dicts:
values = item_dict['values']
item_id = self.tree.insert (parent_id, # root item has an empty name
END,
text=values[0],
values=values[1:])
self.item_id_to_item_dict[item_id] = item_dict
if item_dict['children']:
self.tree.insert(item_id, END, text='dummy')
def _populate_root(self):
# use current directory as root node
self.insert_items('', self.delegate.get_child_item_dictionaries(None))
def _update_tree(self, event):
# user expanded a node - build the related directory
item_id = self.tree.focus() # the id of the expanded node
children = self.tree.get_children (item_id)
if len(children):
first_child = children[0]
# if the node only has a 'dummy' child, remove it and
# build new directory; skip if the node is already
# populated
if self.tree.item(first_child, option='text') == 'dummy':
self.tree.delete(first_child)
item_dicts = self.delegate.get_child_item_dictionaries(self.item_id_to_item_dict[item_id])
self.insert_items(item_id, item_dicts)
@lldb.command("tk-variables")
def tk_variable_display(debugger, command, result, dict):
sys.argv = ['tk-variables'] # needed for tree creation in TK library as it uses sys.argv...
target = debugger.GetSelectedTarget()
if not target:
print >>result, "invalid target"
return
process = target.GetProcess()
if not process:
print >>result, "invalid process"
return
thread = process.GetSelectedThread()
if not thread:
print >>result, "invalid thread"
return
frame = thread.GetSelectedFrame()
if not frame:
print >>result, "invalid frame"
return
# Parse command line args
command_args = shlex.split(command)
tree = DelegateTree(VariableTreeDelegate(frame), 'Variables', 'lldb-tk-variables')
tree.mainloop()
@lldb.command("tk-process")
def tk_process_display(debugger, command, result, dict):
sys.argv = ['tk-process'] # needed for tree creation in TK library as it uses sys.argv...
target = debugger.GetSelectedTarget()
if not target:
print >>result, "invalid target"
return
process = target.GetProcess()
if not process:
print >>result, "invalid process"
return
# Parse command line args
command_args = shlex.split(command)
tree = DelegateTree(ProcessTreeDelegate(process), 'Process', 'lldb-tk-process')
tree.mainloop()
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