U
    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 dd Ze	eef ed< 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 eeef dddZeeeedd d!Z d"d#d$d%Z!eee
e d&d'd(Z"dS ))    N)IODictIterator
NamedTupleOptionalTuplec                   @   s`   e Zd ZG dd deZdZdZdZdZdZ	dZ
dZdZd	Zd
ZdZdZee ddddZdS )_ELFFileHeaderc                   @   s   e Zd ZdZdS )z$_ELFFileHeader._InvalidELFFileHeaderz7
        An invalid ELF file header was found.
        N)__name__
__module____qualname____doc__ r   r   A/tmp/pip-install-xwugzb3_/pip/pip/_vendor/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 |d| _| j| j| jhkrVt |d| _	| j	| j
| jhkrzt |d| _|d| _|d| _ 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   z   t| }t| |}W n tjk
r>   t Y nX |d S )Nr   )readstructcalcsizeunpackerrorr   r   )r   dataresultr   r   r   r   $   s    z'_ELFFileHeader.__init__.<locals>.unpackz>IB   z<Hz>Hz<Iz<Qz>Q)strintZe_ident_magicELF_MAGIC_NUMBERr   r   e_ident_class
ELFCLASS32
ELFCLASS64e_ident_dataELFDATA2LSBELFDATA2MSBZe_ident_versionZe_ident_osabiZe_ident_abiversionr   Ze_ident_padZe_type	e_machineZ	e_versionZe_entryZe_phoffZe_shoffe_flagsZe_ehsizeZe_phentsizeZe_phnumZe_shentsizeZe_shnumZ
e_shstrndx)selfr   r   Zformat_hZformat_iZformat_qZformat_pr   r    r   __init__#   s>    

















z_ELFFileHeader.__init__)r	   r
   r   
ValueErrorr   r%   r'   r(   r*   r+   EM_386ZEM_S390EM_ARMZ	EM_X86_64EF_ARM_ABIMASKEF_ARM_ABI_VER5EF_ARM_ABI_FLOAT_HARDr   bytesr/   r   r   r   r   r      s   r   )r   c               
   C   sH   z$t tjd} t| }W 5 Q R X W n tttjfk
rB   Y 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,   r2   r-   r3   r4   r5   r>   r   r   r   r   _is_linux_armhfU   s    

rB   c                  C   sB   t  } | d krdS | j| jk}|| j| jkM }|| j| jkM }|S r@   )r?   r&   r'   r)   r*   r,   r1   rA   r   r   r   _is_linux_i686h   s    rC   )archr   c                 C   s$   | dkrt  S | dkrt S | dkS )NZarmv7li686>   aarch64ppc64s390xppc64lex86_64)rB   rC   )rD   r   r   r   _have_compatible_abir   s
    rK   c                   C   s   dS )N2   r   r   r   r   r   <lambda>       rM   _LAST_GLIBC_MINORc                   @   s   e Zd ZU eed< eed< dS )_GLibCVersionmajorminorN)r	   r
   r   r$   __annotations__r   r   r   r   rP      s   
rP   c                  C   sJ   z&t d} | dk	st|  \}}W n ttttfk
rD   Y dS X |S )zJ
    Primary implementation of glibc_version_string using os.confstr.
    CS_GNU_LIBC_VERSIONN)osconfstrAssertionErrorsplitAttributeErrorr;   r0   )Zversion_string_versionr   r   r   _glibc_version_string_confstr   s    
r\   c                  C   s   zddl } W n tk
r"   Y dS X z| d}W n tk
rH   Y dS X z
|j}W n tk
rj   Y dS X | j|_| }t|t	s|
d}|S )zG
    Fallback implementation of glibc_version_string using ctypes.
    r   Nascii)ctypesImportErrorCDLLr;   gnu_get_libc_versionrY   c_char_prestype
isinstancer#   decode)r^   process_namespacera   version_strr   r   r   _glibc_version_string_ctypes   s"    


rh   c                   C   s   t  p
t S )z9Returns glibc version string, or None if not using glibc.)r\   rh   r   r   r   r   _glibc_version_string   s    ri   )rg   r   c                 C   s@   t d| }|s$td|  t dS t|dt|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$(?P<major>[0-9]+)\.(?P<minor>[0-9]+)z=Expected glibc version with 2 components major.minor, got: %srk   rQ   rR   )rematchwarningswarnRuntimeWarningr$   group)rg   mr   r   r   _parse_glibc_version   s    rs   c                  C   s   t  } | d krdS t| S )Nrj   )ri   rs   )rg   r   r   r   _get_glibc_version   s    rt   )namerD   r[   r   c                 C   s   t  }||k rdS zdd l}W n tk
r4   Y dS X t|drj||d |d |}|d k	rft|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)
rt   
_manylinuxr_   hasattrrv   boolrP   rx   rz   r|   )ru   rD   r[   Z	sys_glibcr}   r   r   r   r   _is_compatible   s,    






r   manylinux2014manylinux2010
manylinux1))r   r{   )r   ry   )r   rw   )linuxrD   r   c                 c   s   t |sd S tdd}|dkr(tdd}tt  }|g}t|jd ddD ]}t| }|t|| qJ|D ]}|j|jkr|j}nd}t|j|dD ]^}t|j|}	dj|	 }
t	|
||	r| 
d|
V  |	tkrt|	 }t	|||	r| 
d|V  qqld S )	Nr      >   rJ   rE      r   rk   zmanylinux_{}_{}r   )rK   rP   rt   rangerQ   rO   appendrR   formatr   replace_LEGACY_MANYLINUX_MAP)r   rD   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   )#collections	functoolsrU   rl   r   r9   rn   typingr   r   r   r   r   r   r   r?   r   rB   rC   r#   rK   defaultdictrO   r$   rS   rP   r\   rh   ri   rs   	lru_cachert   r   r   r   r   r   r   r   <module>   s6     =	
,
