Add process_bpf_struct

pythonbpf/structs_pass.py

@@ -16,5 +16,24 @@ def structs_proc(tree, module, chunks):
                 break
         if is_struct:
             print(f"Found BPF struct: {cls_node.name}")
+            process_bpf_struct(cls_node, module)
             continue
     return structs_sym_tab
+
+
+def process_bpf_struct(cls_node, module):
+    struct_name = cls_node.name
+    field_names = []
+    field_types = []
+
+    for item in cls_node.body:
+        if isinstance(item, ast.AnnAssign) and isinstance(item.target, ast.Name):
+            field_names.append(item.target.id)
+            field_types.append(ctypes_to_ir(item.annotation.id))
+
+    struct_type = ir.LiteralStructType(field_types)
+    structs_sym_tab[struct_name] = {
+        "type": struct_type,
+        "fields": {name: idx for idx, name in enumerate(field_names)}
+    }
+    print(f"Created struct {struct_name} with fields {field_names}")