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a i��f� � @ s� d Z ddlmZ ddlZddlZddlZddlmZ G dd� de�Z G dd� dej �Z G d d � d ej �Z G d d � d ej �Z G d d� d�ZdS )a; ELF file parser. This provides a class ``ELFFile`` that parses an ELF executable in a similar interface to ``ZipFile``. Only the read interface is implemented. Based on: https://gist.github.com/lyssdod/f51579ae8d93c8657a5564aefc2ffbca ELF header: https://refspecs.linuxfoundation.org/elf/gabi4+/ch4.eheader.html � )� annotationsN)�IOc @ s e Zd ZdS )� ELFInvalidN)�__name__� __module__� __qualname__� r r �v/sparta/input/_build_configuration/image_build+validate/lib/bmcenv/lib64/python3.9/site-packages/packaging/_elffile.pyr s r c @ s e Zd ZdZdZdS )�EIClass� � N)r r r �C32�C64r r r r r s r c @ s e Zd ZdZdZdS )�EIDatar r N)r r r �Lsb�Msbr r r r r s r c @ s e Zd ZdZdZdZdZdZdS )�EMachine� � �( �> � N)r r r �I386�S390�Arm�X8664�AArc64r r r r r ! s r c @ sB e Zd ZdZddd�dd�Zddd �d d �Zed d �dd��ZdS )�ELFFilez. Representation of an ELF executable. z IO[bytes]�None)�f�returnc C s& || _ z| �d�}W n tjy0 td��Y n0 t|d d� �}|dkrXtd|����|d | _|d | _z(ddd d d �| j| jf \}| _| _ W n, t y� td | j� d | j� d���Y n0 z,| �|�\ }| _ }}| _ }| _ }| _| _W n2 tj�y } ztd�|�W Y d }~n d }~0 0 d S )N�16Bz unable to parse identification� s ELFzinvalid magic: � )z <HHIIIIIHHHz <IIIIIIII�r r r" )z >HHIIIIIHHHz >IIIIIIIIr$ )z <HHIQQQIHHHz <IIQQQQQQ�r r r# )z >HHIQQQIHHHz >IIQQQQQQr% ))r r )r r )r r )r r zunrecognized capacity (z) or encoding (�)z/unable to parse machine and section information)�_f�_read�struct�errorr �bytes�capacity�encoding�_p_fmt�_p_idx�KeyError�machine�_e_phoff�flags� _e_phentsize�_e_phnum)�selfr �ident�magic�e_fmt�_�er r r �__init__. sP � � �� �� zELFFile.__init__�strztuple[int, ...])�fmtr c C s t �|| j�t �|���S )N)r) �unpackr' �read�calcsize)r6 r> r r r r( \ s z ELFFile._readz str | None)r c C s� t | j�D ]�}| j�| j| j| � z| �| j�}W n tj yN Y q Y n0 || j d dkrdq | j�|| j d � t � | j� || j d ���d� S dS )zH The path recorded in the ``PT_INTERP`` section header. r r r r � N)�ranger5 r' �seekr2 r4 r( r. r) r* r/ �os�fsdecoder@ �strip)r6 �index�datar r r � interpreter_ s &zELFFile.interpreterN)r r r �__doc__r< r( �propertyrJ r r r r r ) s .r )rK � __future__r �enumrE r) �typingr � ValueErrorr �IntEnumr r r r r r r r �<module> s
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