o
    4ήc)                     @   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$ejj#_g ejj%_eejj%_ejegejj&_eejj&_ejegejj'_eejj'_ejej(gejj)_G dd deZ*edeee*Z+edeee*Z,e+ej-Z.e,ej/Z0e+e,egejj1_ej2ejj1_ej2gejj3_ejej2gejj4_eejj5_eegejj5_dS )    )POINTERc_char_pc_boolc_void_pc_intc_uint64c_size_t	CFUNCTYPE	string_atcast	py_object	Structure)ffitargetsobject_filec                 C   sZ   t  }t j| ||}|stt|W d   n1 sw   Y  d|_t|| dS )zZ
    Create a MCJIT ExecutionEngine from the given *module* and
    *target_machine*.
    NT)module)r   OutputStringlibLLVMPY_CreateMCJITCompilerRuntimeErrorstr_ownedExecutionEngine)r   target_machineouterrengine r   G/tmp/pip-target-vg8gfxp4/lib/python/llvmlite/binding/executionengine.pycreate_mcjit_compiler   s   
r   c                  C   s    t j } | dkrt| ddS )zp
    Check the system allows execution of in-memory JITted functions.
    An exception is raised otherwise.
    r   zcannot allocate executable memory. This may be due to security restrictions on your system, such as SELinux or similar mechanisms.N)r   r   "LLVMPY_TryAllocateExecutableMemoryOSError)errnor   r   r   check_jit_execution   s   
r"   c                   @   s   e Zd ZdZdZdd Zdd Zdd Zd	d
 Zdd Z	dd Z
dd Zdd Zdd Zedd Zdd Zdd Zdd Zd%ddZdd  Zd!d" Zd#d$ 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      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      z$ExecutionEngine.get_function_addressc                 C   r*   )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   r1   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 v 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$   KeyErrorr   r   LLVMPY_AddModuler   add)r(   r   r   r   r   
add_moduleM   s
   
zExecutionEngine.add_modulec                 C      t j|  dS )z}
        Make sure all modules owned by the execution engine are fully processed
        and "usable" for execution.
        N)r   r   LLVMPY_FinalizeObjectr(   r   r   r   finalize_objectW      zExecutionEngine.finalize_objectc                 C   r=   )zW
        Run static constructors which initialize module-level static objects.
        N)r   r   LLVMPY_RunStaticConstructorsr?   r   r   r   run_static_constructors^   s   z'ExecutionEngine.run_static_constructorsc                 C   r=   )zh
        Run static destructors which perform module-level cleanup of static
        resources.
        N)r   r   LLVMPY_RunStaticDestructorsr?   r   r   r   run_static_destructorsd   rA   z&ExecutionEngine.run_static_destructorsc                 C   sZ   t  }t j| ||rtt|W d   n1 sw   Y  | j| d|_dS )z1
        Ownership of module is returned
        NF)	r   r   r   LLVMPY_RemoveModuler   r   r$   remover   )r(   r   r   r   r   r   remove_modulek   s   

zExecutionEngine.remove_modulec                 C   s6   | j dur| j S tj| }t|| _ d| j _| j S )z;
        The TargetData for this execution engine.
        NT)r%   r   r   #LLVMPY_GetExecutionEngineTargetDatar   
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   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$   _ptr)r(   
module_ptrr)   r   r   r   r   _find_module_ptr   s   
z ExecutionEngine._find_module_ptrc                 C   s(   t |trtj|}tj| | dS )z
        Add object file to the jit. object_file can be instance of
        :class:ObjectFile or a string representing file system path
        N)
isinstancer   r   ObjectFileRef	from_pathr   r   LLVMPY_MCJITAddObjectFile)r(   obj_filer   r   r   add_object_file   s   
zExecutionEngine.add_object_filec                 C   s*   || _ || _t| | _tj| | j dS )z~
        Set the object cache "notifyObjectCompiled" and "getBuffer"
        callbacks to the given Python functions.
        N)_object_cache_notify_object_cache_getbuffer_ObjectCacheRef_object_cacher   r   LLVMPY_SetObjectCache)r(   notify_funcgetbuffer_funcr   r   r   set_object_cache   s   
z ExecutionEngine.set_object_cachec                 C   s`   | j du rdS |jj}|jj}|jj}t||}| |}|du r(td|f |  || dS )z(
        Low-level notify hook.
        N5object compilation notification for unknown module %s)rY   contentsrQ   buf_ptrbuf_lenr
   rR   r   )r(   datarQ   rc   rd   bufr   r   r   r   _raw_object_cache_notify   s   


z(ExecutionEngine._raw_object_cache_notifyc                 C   sv   | j du rdS |jj}| |}|du rtd|f |  |}|dur9tj|t||d _	t||d _
dS dS )z+
        Low-level getbuffer hook.
        Nra   r   )rZ   rb   rQ   rR   r   r   r   LLVMPY_CreateByteStringlenrc   rd   )r(   re   rQ   r   rf   r   r   r   _raw_object_cache_getbuffer   s   


z+ExecutionEngine._raw_object_cache_getbufferc                 C   sH   | j D ]}|  q| jd ur| j  | j   d | _| j|  d S r4   )r$   detachr%   clearr\   _capiLLVMPY_DisposeExecutionEngine)r(   modr   r   r   _dispose   s   




zExecutionEngine._dispose)NN)__name__
__module____qualname____doc__r\   r'   r0   r3   r8   r<   r@   rC   rE   rH   propertyrK   rN   rR   rX   r`   rg   rj   rp   r   r   r   r   r   )   s*    	


	


r   c                   @   s    e Zd ZdZdd Zdd ZdS )r[   zN
    Internal: an ObjectCache instance for use within an ExecutionEngine.
    c                 C   s"   t jtt|}t j| | d S r4   )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 r4   )rm   LLVMPY_DisposeObjectCacher?   r   r   r   rp      s   z_ObjectCacheRef._disposeN)rq   rr   rs   rt   r'   rp   r   r   r   r   r[      s    r[   c                   @   s$   e Zd ZdejfdefdefgZdS )_ObjectCacheDatarQ   rc   rd   N)rq   rr   rs   r   LLVMModuleRefr   r   _fields_r   r   r   r   r{   "  s
    r{   N)6ctypesr   r   r   r   r   r   r   r	   r
   r   r   r   llvmlite.bindingr   r   r   r   LLVMPY_LinkInMCJITr   r"   r&   r   r[   r|   LLVMTargetMachineRefr   argtypesLLVMExecutionEngineRefrestyperF   r:   LLVMValueRefr5   r>   rI   LLVMTargetDataRefr   r,   r2   LLVMObjectFileRefrV   r{   _ObjectCacheNotifyFunc_ObjectCacheGetBufferFuncrg   rw   rj   rx   rv   LLVMObjectCacheRefrz   r]   rh   r   r   r   r   <module>   s   8  4















