3
d,                 @   sz  U d dl Z d dlZd dlZd dlZd dlZd dlZd dlZd dlmZm	Z	m
Z
mZmZmZ G dd dZee dddZeddd	Zedd
dZeedddZe jdd Ze	eef G dd deZee dddZee dddZee dddZeeeef dddZej eeef dddZeeeeddd Zd+d#d,d%d-d'iZ eee
e d(d)d*Z!dS ).    N)IODictIterator
NamedTupleOptionalTuplec               @   s`   e Zd ZG dd deZdZdZdZdZdZ	dZ
dZdZd	Zd
ZdZdZee ddddZdS )_ELFFileHeaderc               @   s   e Zd ZdZdS )z$_ELFFileHeader._InvalidELFFileHeaderz7
        An invalid ELF file header was found.
        N)__name__
__module____qualname____doc__ r   r   9/tmp/pip-build-7vycvbft/packaging/packaging/_manylinux.py_InvalidELFFileHeader   s   r   iFLE            (   >   l      ~ i   i   N)filereturnc                sz  t td fdd}|d| _| j| jkr2tj |d| _| j| j| jhkrVtj |d| _	| j	| j
| jhkrztj |d| _|d| _|d| _ jd| _| j	| j
krdnd}| j	| j
krd	nd}| j	| j
krd
nd}| j| jkr|n|}||| _||| _||| _||| _||| _||| _||| _||| _||| _||| _||| _||| _||| _d S )N)fmtr   c                sH   y  j tj| }tj| |}W n tjk
r>   tj Y nX |d S )Nr   )readstructcalcsizeunpackerrorr   r   )r   dataresult)r   r   r   r   $   s    z'_ELFFileHeader.__init__.<locals>.unpackz>IB   z<Hz>Hz<Iz<Qz>Q)strintZe_ident_magicELF_MAGIC_NUMBERr   r   e_ident_class
ELFCLASS32
ELFCLASS64e_ident_dataELFDATA2LSBELFDATA2MSBZe_ident_versionZe_ident_osabiZe_ident_abiversionr   Ze_ident_padZe_type	e_machineZ	e_versionZe_entryZe_phoffZe_shoffe_flagsZe_ehsizeZe_phentsizeZe_phnumZe_shentsizeZe_shnumZ
e_shstrndx)selfr   r   Zformat_hZformat_iZformat_qZformat_pr   )r   r   __init__#   s>    

















z_ELFFileHeader.__init__)r	   r
   r   
ValueErrorr   r$   r&   r'   r)   r*   EM_386ZEM_S390EM_ARMZ	EM_X86_64EF_ARM_ABIMASKEF_ARM_ABI_VER5EF_ARM_ABI_FLOAT_HARDr   bytesr.   r   r   r   r   r      s   r   )r   c              C   sF   y$t tjd} t| }W d Q R X W n tttjfk
r@   d S X |S )Nrb)opensys
executabler   OSError	TypeErrorr   )f
elf_headerr   r   r   _get_elf_headerL   s    r>   c              C   sn   t  } | d krdS | j| jk}|| j| jkM }|| j| jkM }|| j| j@ | j	kM }|| j| j
@ | j
kM }|S )NF)r>   r%   r&   r(   r)   r+   r1   r,   r2   r3   r4   )r=   r   r   r   r   _is_linux_armhfU   s    



r?   c              C   sB   t  } | d krdS | j| jk}|| j| jkM }|| j| jkM }|S )NF)r>   r%   r&   r(   r)   r+   r0   )r=   r   r   r   r   _is_linux_i686h   s    r@   )archr   c             C   s$   | dkrt  S | dkrt S | dkS )	NZarmv7li686x86_64aarch64ppc64ppc64les390x>   rG   rD   rF   rC   rE   )r?   r@   )rA   r   r   r   _have_compatible_abir   s
    rH   c               C   s   dS )N2   r   r   r   r   r   <lambda>   s    rJ   c               @   s   e Zd ZU eedS )_GLibCVersionN)r	   r
   r   r#   majorminorr   r   r   r   rK      s   
rK   c              C   sH   y&t jd} | dk	st| j \}}W n ttttfk
rB   dS X |S )zJ
    Primary implementation of glibc_version_string using os.confstr.
    CS_GNU_LIBC_VERSIONN)osconfstrAssertionErrorsplitAttributeErrorr:   r/   )version_string_versionr   r   r   _glibc_version_string_confstr   s    
rW   c              C   s   yddl } W n tk
r    dS X y| jd}W n tk
rD   dS X y
|j}W n tk
rd   dS X | j|_| }t|t	s|j
d}|S )zG
    Fallback implementation of glibc_version_string using ctypes.
    r   Nascii)ctypesImportErrorCDLLr:   gnu_get_libc_versionrS   c_char_prestype
isinstancer"   decode)rY   process_namespacer\   version_strr   r   r   _glibc_version_string_ctypes   s"    


rc   c               C   s   t  p
t S )z9Returns glibc version string, or None if not using glibc.)rW   rc   r   r   r   r   _glibc_version_string   s    rd   )rb   r   c             C   s@   t jd| }|s$tjd|  t dS t|jdt|jdfS )	a3  Parse glibc version.

    We use a regexp instead of str.split because we want to discard any
    random junk that might come after the minor version -- this might happen
    in patched/forked versions of glibc (e.g. Linaro's version of glibc
    uses version strings like "2.20-2014.11"). See gh-3588.
    z$(?P<major>[0-9]+)\.(?P<minor>[0-9]+)z=Expected glibc version with 2 components major.minor, got: %sr   rL   rM   re   )re   re   )rematchwarningswarnRuntimeWarningr#   group)rb   mr   r   r   _parse_glibc_version   s    rm   c              C   s   t  } | d krdS t| S )Nr   re   re   )re   re   )rd   rm   )rb   r   r   r   _get_glibc_version   s    rn   )namerA   rV   r   c             C   s   t  }||k rdS ydd l}W n tk
r2   dS X t|drh|j|d |d |}|d k	rdt|S dS |tddkrt|drt|jS |tdd	krt|d
rt|jS |tddkrt|drt|j	S dS )NFr   Tmanylinux_compatibler   r      manylinux1_compatible   manylinux2010_compatible   manylinux2014_compatible)
rn   
_manylinuxrZ   hasattrrp   boolrK   rr   rt   rv   )ro   rA   rV   Z	sys_glibcrw   r   r   r   r   _is_compatible   s,    






rz   r   ru   Zmanylinux2014rs   Zmanylinux2010rq   
manylinux1)linuxrA   r   c             c   s  t |sd S tdd}|d	kr(tdd}tt  }|g}x2t|jd dd
D ]}t| }|jt|| qLW x|D ]}|j|jkr|j}nd}xpt|j|dD ]^}t|j|}	dj|	 }
t	|
||	r| j
d|
V  |	tkrt|	 }t	|||	r| j
d|V  qW qrW d S )Nr      rC   rB      r   zmanylinux_{}_{}r|   >   rB   rC   re   re   re   )rH   rK   rn   rangerL   _LAST_GLIBC_MINORappendrM   formatrz   replace_LEGACY_MANYLINUX_MAP)r|   rA   Ztoo_old_glibc2Zcurrent_glibcZglibc_max_listZglibc_majorZglibc_minorZ	glibc_maxZ	min_minorglibc_versiontagZ
legacy_tagr   r   r   platform_tags  s.    




r   )r   ru   )r   rs   )r   rq   )"collections	functoolsrO   rf   r   r8   rh   typingr   r   r   r   r   r   r   r>   ry   r?   r@   r"   rH   defaultdictr   r#   rK   rW   rc   rd   rm   	lru_cachern   rz   r   r   r   r   r   r   <module>   s4     =	
,