identify error in pointer to ctypes subclass dependency fixing

Author: varun-r-mallya

pythonbpf/vmlinux_parser/class_handler.py

@@ -99,7 +99,9 @@ def process_vmlinux_post_ast(
                 local_module_name = getattr(elem_type, "__module__", None)
                 new_dep_node.add_field(elem_name, elem_type, ready=False)
                 if local_module_name == ctypes.__name__:
+                    #TODO: need to process pointer to ctype and also CFUNCTYPES here
                     new_dep_node.set_field_bitfield_size(elem_name, elem_bitfield_size)
+                    print(elem_type)
                     new_dep_node.set_field_ready(elem_name, is_ready=True)
                     logger.debug(
                         f"Field {elem_name} is direct ctypes type: {elem_type}"
@@ -127,6 +129,8 @@ def process_vmlinux_post_ast(
                                     ctype_complex_type = ctypes.Array
                                 elif issubclass(elem_type, ctypes._Pointer):
                                     ctype_complex_type = ctypes._Pointer
+                                else:
+                                    raise ImportError("Non Array and Pointer type ctype imports not supported in current version")
                             else:
                                 raise TypeError("Unsupported ctypes subclass")
                         else:

pythonbpf/vmlinux_parser/ir_gen/debug_info_gen.py

@@ -78,7 +78,6 @@ def _get_field_debug_type(
     """
     # Handle complex types (arrays, pointers)
     if field.ctype_complex_type is not None:
-        print(field)
         if issubclass(field.ctype_complex_type, ctypes.Array):
             # Handle array types
             element_type, base_type_size = _get_basic_debug_type(
@@ -90,7 +89,6 @@ def _get_field_debug_type(
         elif issubclass(field.ctype_complex_type, ctypes._Pointer):
             # Handle pointer types
             pointee_type, _ = _get_basic_debug_type(field.containing_type, generator)
-            print("DEBUG", pointee_type)
             return generator.create_pointer_type(pointee_type), 64
 
     # Handle other vmlinux types (nested structs)

tests/passing_tests/vmlinux/simple_struct_test.py

@@ -1,8 +1,7 @@
 from pythonbpf import bpf, section, bpfglobal, compile_to_ir, compile
 from vmlinux import TASK_COMM_LEN  # noqa: F401
 from vmlinux import struct_trace_event_raw_sys_enter  # noqa: F401
-# from vmlinux import struct_xdp_md
-# from vmlinux import struct_request
+# from vmlinux import struct_uinput_device
 from vmlinux import struct_blk_integrity_iter
 from ctypes import c_int64