U mu f @sdZddlZddlZddlZddlmZmZmZGdddeZ Gdddej Z Gdd d ej Z Gd d d ej Z Gd 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 N)IOOptionalTuplec@s eZdZdS) ELFInvalidN)__name__ __module__ __qualname__r r 6/tmp/pip-unpacked-wheel-nsq0ak9d/packaging/_elffile.pyrsrc@seZdZdZdZdS)EIClassN)rrrZC32ZC64r r r r r sr c@seZdZdZdZdS)EIDatar r N)rrrZLsbZMsbr r r r rsrc@s eZdZdZdZdZdZdZdS)EMachine(>N)rrrZI386ZS390ZArmZX8664ZAArc64r r r r rs rc@sReZdZdZeeddddZeee dfddd Z e e ed d d Z dS) ELFFilez. Representation of an ELF executable. N)freturnc Cs(||_z|d}Wntjk r2tdYnXt|dd}|dkrZtd||d|_|d|_z(ddd d d |j|jf\}|_|_ Wn.t k rtd |jd |jdYnXz,||\ }|_ }}|_ }|_ }|_|_Wn0tjk r"}ztd|W5d}~XYnXdS)NZ16Bzunable to parse identificationsELFzinvalid magic: )z HHIIIIIHHHz >IIIIIIIIr)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_readstructerrorrbytescapacityencoding_p_fmt_p_idxKeyErrormachine_e_phoffflags _e_phentsize_e_phnum)selfridentmagicZe_fmt_er r r __init__,sL      zELFFile.__init__.)fmtrcCst||jt|S)N)runpackrreadcalcsize)r,r2r r r rZsz ELFFile._read)rc Cst|jD]}|j|j|j|z||j}Wntj k rPYq YnX||j ddkrfq |j||j dt |j ||j ddSdS)zH The path recorded in the ``PT_INTERP`` section header. rrr r N)ranger+rseekr(r*rr$rr r%osfsdecoder4strip)r,indexdatar r r interpreter]s &zELFFile.interpreter)rrr__doc__rr!r1strrintrpropertyrr>r r r r r's .r)r?enumr9rtypingrrr ValueErrorrIntEnumr rrrr r r r s