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- #
- # gdb helper commands and functions for Linux kernel debugging
- #
- # common utilities
- #
- # Copyright (c) Siemens AG, 2011-2013
- #
- # Authors:
- # Jan Kiszka <jan.kiszka@siemens.com>
- #
- # This work is licensed under the terms of the GNU GPL version 2.
- #
- import gdb
- class CachedType:
- def __init__(self, name):
- self._type = None
- self._name = name
- def _new_objfile_handler(self, event):
- self._type = None
- gdb.events.new_objfile.disconnect(self._new_objfile_handler)
- def get_type(self):
- if self._type is None:
- self._type = gdb.lookup_type(self._name)
- if self._type is None:
- raise gdb.GdbError(
- "cannot resolve type '{0}'".format(self._name))
- if hasattr(gdb, 'events') and hasattr(gdb.events, 'new_objfile'):
- gdb.events.new_objfile.connect(self._new_objfile_handler)
- return self._type
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