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� �e& � �6 � d Z ddlZ G d� de� � Zdd�ZdS )z.Unwinder class and register_unwinder function.� Nc � � e Zd ZdZd� Zd� ZdS )�Unwindera Base class (or a template) for frame unwinders written in Python.
An unwinder has a single method __call__ and the attributes
described below.
Attributes:
name: The name of the unwinder.
enabled: A boolean indicating whether the unwinder is enabled.
c �" � || _ d| _ dS )z\Constructor.
Args:
name: An identifying name for the unwinder.
TN)�name�enabled)�selfr s �%/usr/share/gdb/python/gdb/unwinder.py�__init__zUnwinder.__init__ s � � �� ��� � � � c � � t d� � �)z�GDB calls this method to unwind a frame.
Arguments:
pending_frame: gdb.PendingFrame instance.
Returns:
gdb.UnwindInfo instance.
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}�:| j � d|� � t j � � dS ) a~ Register unwinder in given locus.
The unwinder is prepended to the locus's unwinders list. Unwinder
name should be unique.
Arguments:
locus: Either an objfile, progspace, or None (in which case
the unwinder is registered globally).
unwinder: An object of a gdb.Unwinder subclass
replace: If True, replaces existing unwinder with the same name.
Otherwise, raises exception if unwinder with the same
name already exists.
Returns:
Nothing.
Raises:
RuntimeError: Unwinder name is not unique
TypeError: Bad locus type
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