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41 lines
1.1 KiB
Python
41 lines
1.1 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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This hook is necessary for compatibility with Python2.7 versions of GDB
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since they cannot directly cast to integer a gdb.Value object that is
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not already an integer type.
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"""
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from __future__ import print_function
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import sys
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import gdb
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import pwndbg.typeinfo
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if sys.version_info < (3,0):
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import __builtin__ as builtins
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_int = builtins.int
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# We need this class to get isinstance(7, xint) to return True
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class IsAnInt(type):
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def __instancecheck__(self, other):
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return isinstance(other, _int)
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class xint(builtins.int):
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__metaclass__ = IsAnInt
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def __new__(cls, value, *a, **kw):
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if isinstance(value, gdb.Value):
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if pwndbg.typeinfo.is_pointer(value):
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value = value.cast(pwndbg.typeinfo.ulong)
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else:
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value = value.cast(pwndbg.typeinfo.long)
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return _int(_int(value, *a, **kw))
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builtins.int = xint
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globals()['int'] = xint
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# Additionally, we need to compensate for Python2
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else:
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import builtins
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builtins.long = int
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globals()['long'] = int
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