diff a/src/hotspot/cpu/riscv/frame_riscv.cpp b/src/hotspot/cpu/riscv/frame_riscv.cpp
--- a/src/hotspot/cpu/riscv/frame_riscv.cpp
+++ b/src/hotspot/cpu/riscv/frame_riscv.cpp
@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 1997, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2026, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2014, 2020, Red Hat Inc. All rights reserved.
  * Copyright (c) 2020, 2023, Huawei Technologies Co., Ltd. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -627,5 +627,20 @@
   if (walkable()) { return; }
   vmassert(last_Java_sp() != nullptr, "not called from Java code?");
   _last_Java_pc = (address)_last_Java_sp[-1];
   vmassert(walkable(), "something went wrong");
 }
+
+intptr_t* frame::repair_sender_sp(intptr_t* sender_sp, intptr_t** saved_fp_addr) const {
+  Unimplemented();
+  return nullptr;
+}
+
+intptr_t* frame::repair_sender_sp(nmethod* nm, intptr_t* sp, intptr_t** saved_fp_addr) {
+  Unimplemented();
+  return nullptr;
+}
+
+bool frame::was_augmented_on_entry(int& real_size) const {
+  Unimplemented();
+  return false;
+}