diff --git a/src/mapleall/maple_ir/src/debug_info.cpp b/src/mapleall/maple_ir/src/debug_info.cpp
index 004cf96ff55e568f9a5bce14799ebb15621e3d26..0ebfb6c9934319aaffba1a00e51d1511bb3347ad 100644
--- a/src/mapleall/maple_ir/src/debug_info.cpp
+++ b/src/mapleall/maple_ir/src/debug_info.cpp
@@ -1039,7 +1039,11 @@ DBGDie *DebugInfo::GetOrCreateEnumTypeDie(unsigned idx) {
   DBGDie *die = module->GetMemPool()->New<DBGDie>(module, DW_TAG_enumeration_type);
 
   PrimType pty = mirEnum->GetPrimType();
-  (void)(die->AddAttr(DW_AT_name, DW_FORM_strp, sid));
+  // check if it is an anonymous enum
+  const std::string &name = GlobalTables::GetStrTable().GetStringFromStrIdx(mirEnum->GetNameIdx());
+  size_t pos = name.find("unnamed_enum.");
+  uint32 stridx = (pos == std::string::npos) ? sid : 0;
+  (void)(die->AddAttr(DW_AT_name, DW_FORM_strp, stridx));
   (void)(die->AddAttr(DW_AT_encoding, DW_FORM_data4, GetAteFromPTY(pty)));
   (void)(die->AddAttr(DW_AT_byte_size, DW_FORM_data1, GetPrimTypeSize(pty)));
   MIRType *type = GlobalTables::GetTypeTable().GetTypeFromTyIdx(pty);
@@ -1068,15 +1072,18 @@ DBGDie *DebugInfo::GetOrCreatePointTypeDie(const MIRPtrType *ptrType) {
   }
 
   MIRType *type = ptrType->GetPointedType();
-  // for <* void>
+  // for <* void> and <func >
   if ((type != nullptr) &&
       (type->GetPrimType() == PTY_void || type->GetKind() == kTypeFunction)) {
-    DBGDie *die = module->GetMemPool()->New<DBGDie>(module, DW_TAG_pointer_type);
-    die->AddAttr(DW_AT_byte_size, DW_FORM_data4, k8BitSize);
+    DBGDie *die = nullptr;
     if (type->GetKind() == kTypeFunction) {
-      DBGDie *pdie = GetOrCreateTypeDie(type);
+      // for maple's function pointer type, function type should be used in dwarf
+      die = GetOrCreateTypeDie(type);
       die->AddAttr(DW_AT_type, DW_FORM_ref4, type->GetTypeIndex().GetIdx());
-      tyIdxDieIdMap[type->GetTypeIndex().GetIdx()] = pdie->GetId();
+      tyIdxDieIdMap[type->GetTypeIndex().GetIdx()] = die->GetId();
+    } else {
+      die = module->GetMemPool()->New<DBGDie>(module, DW_TAG_pointer_type);
+      die->AddAttr(DW_AT_byte_size, DW_FORM_data4, k8BitSize);
     }
     tyIdxDieIdMap[ptrType->GetTypeIndex().GetIdx()] = die->GetId();
     compUnit->AddSubVec(die);