dash/contrib/auto_gdb/used_size.py
MarcoFalke 17acd6b472
Merge #12987: tests/tools: Enable additional Python flake8 rules for automatic linting via Travis
643aad17fa Enable additional flake8 rules (practicalswift)
f020aca297 Minor Python cleanups to make flake8 pass with the new rules enabled (practicalswift)

Pull request description:

  Enabled rules:

  ```
  * E242: tab after ','
  * E266: too many leading '#' for block comment
  * E401: multiple imports on one line
  * E402: module level import not at top of file
  * E701: multiple statements on one line (colon)
  * E901: SyntaxError: invalid syntax
  * E902: TokenError: EOF in multi-line string
  * F821: undefined name 'Foo'
  * W293: blank line contains whitespace
  * W606: 'async' and 'await' are reserved keywords starting with Python 3.7
  ```

  Note to reviewers:
  * In general we don't allow whitespace cleanups to existing code, but in order to allow for enabling Travis checking for these rules a few smaller whitespace cleanups had to made as part of this PR.
  * Use [this `?w=1` link](https://github.com/bitcoin/bitcoin/pull/12987/files?w=1) to show a diff without whitespace changes.

  Before this commit:

  ```
  $ flake8 -qq --statistics --ignore=B,C,E,F,I,N,W --select=E112,E113,E115,E116,E125,E131,E133,E223,E224,E242,E266,E271,E272,E273,E274,E275,E304,E306,E401,E402,E502,E701,E702,E703,E714,E721,E741,E742,E743,F401,E901,E902,F402,F404,F406,F407,F601,F602,F621,F622,F631,F701,F702,F703,F704,F705,F706,F707,F811,F812,F821,F822,F823,F831,F841,W292,W293,W504,W601,W602,W603,W604,W605,W606 .
  5     E266 too many leading '#' for block comment
  4     E401 multiple imports on one line
  6     E402 module level import not at top of file
  5     E701 multiple statements on one line (colon)
  1     F812 list comprehension redefines 'n' from line 159
  4     F821 undefined name 'ConnectionRefusedError'
  28    W293 blank line contains whitespace
  ```

  After this commit:

  ```
  $ flake8 -qq --statistics --ignore=B,C,E,F,I,N,W --select=E112,E113,E115,E116,E125,E131,E133,E223,E224,E242,E266,E271,E272,E273,E274,E275,E304,E306,E401,E402,E502,E701,E702,E703,E714,E721,E741,E742,E743,F401,E901,E902,F402,F404,F406,F407,F601,F602,F621,F622,F631,F701,F702,F703,F704,F705,F706,F707,F811,F812,F821,F822,F823,F831,F841,W292,W293,W504,W601,W602,W603,W604,W605,W606 .
  $
  ```

Tree-SHA512: fc7d5e752298a50d4248afc620ee2c173135b4ca008e48e02913ac968e5a24a5fd5396926047ec62f1d580d537434ccae01f249bb2f3338fa59dc630bf97ca7a
Signed-off-by: pasta <pasta@dashboost.org>
2020-07-22 12:12:46 -05:00

45 lines
1.1 KiB
Python

#!/usr/bin/env python3
#
try:
import gdb
except ImportError as e:
raise ImportError("This script must be run in GDB: ", str(e))
import traceback
import sys
import os
import common_helpers
sys.path.append(os.getcwd())
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()