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    +d)                     @   s  d dl mZmZmZmZmZmZmZmZm	Z	m
Z
mZmZ d dlmZmZmZ ejj dd Zdd ZG dd dejZG d	d
 d
ejZejejeegejj_ejejj_ejejeegejj_eejj_ejejgejj_ejej egejj!_ejgejj"_ejgejj#_ej$ejj#_g ejj%_eejj%_ejegejj&_eejj&_ejegejj'_eejj'_ejej(gejj)_G dd deZ*edeee*Z+edeee*Z,e+ej-Z.e,ej/Z0e+e,egejj1_ej2ejj1_ej2gejj3_ejej2gejj4_eejj5_eegejj5_dS )    )POINTERc_char_pc_boolc_void_pc_intc_uint64c_size_t	CFUNCTYPE	string_atcast	py_object	Structure)ffitargetsobject_filec              	   C   sF   t  &}t j| ||}|s*tt|W 5 Q R X d|_t|| dS )zZ
    Create a MCJIT ExecutionEngine from the given *module* and
    *target_machine*.
    T)module)r   OutputStringlibLLVMPY_CreateMCJITCompilerRuntimeErrorstr_ownedExecutionEngine)r   Ztarget_machineouterrZengine r   D/tmp/pip-unpacked-wheel-stw2luzp/llvmlite/binding/executionengine.pycreate_mcjit_compiler   s    
  r   c                  C   s    t j } | dkrt| ddS )zp
    Check the system allows execution of in-memory JITted functions.
    An exception is raised otherwise.
    r   zcannot allocate executable memory. This may be due to security restrictions on your system, such as SELinux or similar mechanisms.N)r   r   "LLVMPY_TryAllocateExecutableMemoryOSError)errnor   r   r   check_jit_execution   s
    
r    c                   @   s   e Zd ZdZdZdd Zdd Zdd Zd	d
 Zdd Z	dd Z
dd Zdd Zdd Zedd Zdd Zdd Zdd Zd%ddZdd  Zd!d" Zd#d$ ZdS )&r   zAn ExecutionEngine owns all Modules associated with it.
    Deleting the engine will remove all associated modules.
    It is an error to delete the associated modules.
    Nc                 C   s*   t |g| _d| _d|_tj| | dS )z;
        Module ownership is transferred to the EE
        NT)set_modules_tdr   r   	ObjectRef__init__)selfptrr   r   r   r   r%   0   s    zExecutionEngine.__init__c                 C   s   t j| |dS )z
        Return the address of the function named *name* as an integer.

        It's a fatal error in LLVM if the symbol of *name* doesn't exist.
        ascii)r   r   LLVMPY_GetFunctionAddressencoder&   namer   r   r   get_function_address9   s    z$ExecutionEngine.get_function_addressc                 C   s   t j| |dS )z
        Return the address of the global value named *name* as an integer.

        It's a fatal error in LLVM if the symbol of *name* doesn't exist.
        r(   )r   r   LLVMPY_GetGlobalValueAddressr*   r+   r   r   r   get_global_value_addressA   s    z(ExecutionEngine.get_global_value_addressc                 C   s   t j| || d S N)r   r   LLVMPY_AddGlobalMapping)r&   gvaddrr   r   r   add_global_mappingI   s    z"ExecutionEngine.add_global_mappingc                 C   s6   || j krtdtj| | d|_| j | dS )zL
        Ownership of module is transferred to the execution engine
        z#module already added to this engineTN)r"   KeyErrorr   r   LLVMPY_AddModuler   add)r&   r   r   r   r   
add_moduleM   s
    
zExecutionEngine.add_modulec                 C   s   t j|  dS )z}
        Make sure all modules owned by the execution engine are fully processed
        and "usable" for execution.
        N)r   r   LLVMPY_FinalizeObjectr&   r   r   r   finalize_objectW   s    zExecutionEngine.finalize_objectc                 C   s   t j|  dS )zW
        Run static constructors which initialize module-level static objects.
        N)r   r   ZLLVMPY_RunStaticConstructorsr:   r   r   r   run_static_constructors^   s    z'ExecutionEngine.run_static_constructorsc                 C   s   t j|  dS )zh
        Run static destructors which perform module-level cleanup of static
        resources.
        N)r   r   ZLLVMPY_RunStaticDestructorsr:   r   r   r   run_static_destructorsd   s    z&ExecutionEngine.run_static_destructorsc              	   C   sF   t  "}t j| ||r&tt|W 5 Q R X | j| d|_dS )z1
        Ownership of module is returned
        FN)	r   r   r   LLVMPY_RemoveModuler   r   r"   remover   )r&   r   r   r   r   r   remove_modulek   s
    
zExecutionEngine.remove_modulec                 C   s6   | j dk	r| j S tj| }t|| _ d| j _| j S )z;
        The TargetData for this execution engine.
        NT)r#   r   r   #LLVMPY_GetExecutionEngineTargetDatar   Z
TargetDatar   )r&   r'   r   r   r   target_datau   s    
zExecutionEngine.target_datac                 C   s   t j| }|S )z
        Enable JIT events for profiling of generated code.
        Return value indicates whether connection to profiling tool
        was successful.
        )r   r   ZLLVMPY_EnableJITEvents)r&   retr   r   r   enable_jit_events   s    z!ExecutionEngine.enable_jit_eventsc                 C   s6   t |tj}| jD ]}t |jtj|kr|  S qdS )zH
        Find the ModuleRef corresponding to the given pointer.
        N)r   r   valuer"   Z_ptr)r&   
module_ptrr'   r   r   r   r   _find_module_ptr   s
    

z ExecutionEngine._find_module_ptrc                 C   s(   t |trtj|}tj| | dS )z
        Add object file to the jit. object_file can be instance of
        :class:ObjectFile or a string representing file system path
        N)
isinstancer   r   ZObjectFileRef	from_pathr   r   LLVMPY_MCJITAddObjectFile)r&   Zobj_filer   r   r   add_object_file   s    
zExecutionEngine.add_object_filec                 C   s*   || _ || _t| | _tj| | j dS )z~
        Set the object cache "notifyObjectCompiled" and "getBuffer"
        callbacks to the given Python functions.
        N)_object_cache_notify_object_cache_getbuffer_ObjectCacheRef_object_cacher   r   LLVMPY_SetObjectCache)r&   Znotify_funcZgetbuffer_funcr   r   r   set_object_cache   s    
z ExecutionEngine.set_object_cachec                 C   s`   | j dkrdS |jj}|jj}|jj}t||}| |}|dkrPtd|f |  || dS )z(
        Low-level notify hook.
        N5object compilation notification for unknown module %s)rL   contentsrF   buf_ptrbuf_lenr
   rG   r   )r&   datarF   rT   rU   bufr   r   r   r   _raw_object_cache_notify   s    


z(ExecutionEngine._raw_object_cache_notifyc                 C   sr   | j dkrdS |jj}| |}|dkr6td|f |  |}|dk	rntj|t||d _	t||d _
dS )z+
        Low-level getbuffer hook.
        NrR   r   )rM   rS   rF   rG   r   r   r   LLVMPY_CreateByteStringlenrT   rU   )r&   rV   rF   r   rW   r   r   r   _raw_object_cache_getbuffer   s    


z+ExecutionEngine._raw_object_cache_getbufferc                 C   sH   | j D ]}|  q| jd k	r(| j  | j   d | _| j|  d S r0   )r"   detachr#   clearrO   _capiZLLVMPY_DisposeExecutionEngine)r&   modr   r   r   _dispose   s    




zExecutionEngine._dispose)NN)__name__
__module____qualname____doc__rO   r%   r-   r/   r4   r8   r;   r<   r=   r@   propertyrB   rD   rG   rK   rQ   rX   r[   r`   r   r   r   r   r   )   s(   	


	


r   c                   @   s    e Zd ZdZdd Zdd ZdS )rN   zN
    Internal: an ObjectCache instance for use within an ExecutionEngine.
    c                 C   s"   t jtt|}t j| | d S r0   )r   r   LLVMPY_CreateObjectCache_notify_c_hook_getbuffer_c_hookr$   r%   )r&   objr'   r   r   r   r%      s
    z_ObjectCacheRef.__init__c                 C   s   | j |  d S r0   )r^   LLVMPY_DisposeObjectCacher:   r   r   r   r`      s    z_ObjectCacheRef._disposeN)ra   rb   rc   rd   r%   r`   r   r   r   r   rN      s   rN   c                   @   s$   e Zd ZdejfdefdefgZdS )_ObjectCacheDatarF   rT   rU   N)ra   rb   rc   r   LLVMModuleRefr   r   _fields_r   r   r   r   rk   "  s   rk   N)6ctypesr   r   r   r   r   r   r   r	   r
   r   r   r   Zllvmlite.bindingr   r   r   r   ZLLVMPY_LinkInMCJITr   r    r$   r   rN   rl   ZLLVMTargetMachineRefr   argtypesZLLVMExecutionEngineRefrestyper>   r6   ZLLVMValueRefr1   r9   rA   ZLLVMTargetDataRefr   r)   r.   ZLLVMObjectFileRefrJ   rk   Z_ObjectCacheNotifyFuncZ_ObjectCacheGetBufferFuncrX   rg   r[   rh   rf   ZLLVMObjectCacheRefrj   rP   rY   r   r   r   r   <module>   s   8 4















