find global variable ir and field data from metadata

Author: varun-r-mallya

pythonbpf/functions/functions_pass.py

@@ -348,9 +348,7 @@ def process_func_body(
                 resolved_type = VmlinuxHandlerRegistry.get_struct_type(
                     context_type_name
                 )
-                context_type = LocalSymbol(
-                    None, ir.PointerType(resolved_type), resolved_type
-                )
+                context_type = LocalSymbol(None, None, resolved_type)
                 local_sym_tab[context_name] = context_type
                 logger.info(f"Added argument '{context_name}' to local symbol table")
 

pythonbpf/vmlinux_parser/vmlinux_exports_handler.py

@@ -93,8 +93,11 @@ def handle_vmlinux_struct_field(
             logger.info(
                 f"Attempting to access field {field_name} of possible vmlinux struct {struct_var_name}"
             )
-            print(var_info.ir_type)
-            print(self.get_field_type(struct_var_name, field_name))
+            python_type: type = var_info.metadata
+            globvar_ir, field_data = self.get_field_type(
+                python_type.__name__, field_name
+            )
+
             # Return pointer to field and field type
             return None
         else:

tests/failing_tests/vmlinux/struct_field_access.py

@@ -17,7 +17,7 @@ def hello_world(ctx: struct_trace_event_raw_sys_enter) -> c_int64:
     a = 2 + TASK_COMM_LEN + TASK_COMM_LEN
     b = ctx.id
     print(f"Hello, World{TASK_COMM_LEN} and {a}")
-    # print(f"This is context field {b}")
+    print(f"This is context field {b}")
     return c_int64(TASK_COMM_LEN + 2)