neobytes/contrib/auto_gdb/used_size.py
gladcow 1c9ed7806a GDB automation with Python script to measure memory usage in dashd (#1609)
* standart STL containers and Masternode-related classes processing

* masternode-related classes

* fix st containers processing,  use reflection to process simple classes

* Content descrioption in README.md

* Increase python scripts performance

Use gdb objects instead strings and type info for creating Pyton wrappers

* fixed simple classes list

* addition to README

* fix nits

* missed `the`

Co-Authored-By: gladcow <sergey@dash.org>

* fix nits

Co-Authored-By: gladcow <sergey@dash.org>

* fixed grammatical issues

Co-Authored-By: gladcow <sergey@dash.org>

* fixed phrase construction

Co-Authored-By: gladcow <sergey@dash.org>

* missed point

Co-Authored-By: gladcow <sergey@dash.org>

* fixed grammatical issues

Co-Authored-By: gladcow <sergey@dash.org>

* remove double space

Co-Authored-By: gladcow <sergey@dash.org>

* fixed grammatical issues

Co-Authored-By: gladcow <sergey@dash.org>
2018-10-23 14:15:08 +03:00

45 lines
1.1 KiB
Python

#!/usr/bin/python
#
try:
import gdb
except ImportError as e:
raise ImportError("This script must be run in GDB: ", str(e))
import traceback
import sys
import os
sys.path.append(os.getcwd())
import common_helpers
class UsedSizeCommand (gdb.Command):
"""calc size of the memory used by the object"""
def __init__ (self):
super (UsedSizeCommand, self).__init__ ("usedsize", gdb.COMMAND_USER)
@classmethod
def assign_value(cls, obj_name, value):
gdb.execute("set " + obj_name + " = " + str(value))
@classmethod
def get_type(cls, obj_name):
return gdb.parse_and_eval(obj_name).type
def invoke(self, arg, from_tty):
try:
args = gdb.string_to_argv(arg)
obj = gdb.parse_and_eval(args[1])
obj_type = obj.type
print (args[1] + " is " + str(obj_type))
size = common_helpers.get_instance_size(obj)
UsedSizeCommand.assign_value(args[0], size)
print (size)
except Exception as e:
print(traceback.format_exc())
raise e
UsedSizeCommand()