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linedance-app/venv/lib/python3.12/site-packages/llvmlite/binding/dylib.py

@@ -0,0 +1,45 @@
+from ctypes import c_void_p, c_char_p, c_bool, POINTER
+
+from llvmlite.binding import ffi
+from llvmlite.binding.common import _encode_string
+
+
+def address_of_symbol(name):
+    """
+    Get the in-process address of symbol named *name*.
+    An integer is returned, or None if the symbol isn't found.
+    """
+    return ffi.lib.LLVMPY_SearchAddressOfSymbol(_encode_string(name))
+
+
+def add_symbol(name, address):
+    """
+    Register the *address* of global symbol *name*.  This will make
+    it usable (e.g. callable) from LLVM-compiled functions.
+    """
+    ffi.lib.LLVMPY_AddSymbol(_encode_string(name), c_void_p(address))
+
+
+def load_library_permanently(filename):
+    """
+    Load an external library
+    """
+    with ffi.OutputString() as outerr:
+        if ffi.lib.LLVMPY_LoadLibraryPermanently(
+                _encode_string(filename), outerr):
+            raise RuntimeError(str(outerr))
+
+# ============================================================================
+# FFI
+
+
+ffi.lib.LLVMPY_AddSymbol.argtypes = [
+    c_char_p,
+    c_void_p,
+]
+
+ffi.lib.LLVMPY_SearchAddressOfSymbol.argtypes = [c_char_p]
+ffi.lib.LLVMPY_SearchAddressOfSymbol.restype = c_void_p
+
+ffi.lib.LLVMPY_LoadLibraryPermanently.argtypes = [c_char_p, POINTER(c_char_p)]
+ffi.lib.LLVMPY_LoadLibraryPermanently.restype = c_bool