diff --git a/proto/report_sample.proto b/proto/report_sample.proto
index d5d7f6c..fffd50a 100644
--- a/proto/report_sample.proto
+++ b/proto/report_sample.proto
@@ -1,4 +1,4 @@
-// Copyright (c) 2021 Huawei Device Co., Ltd.
+// Copyright (c) 2021-2022 Huawei Device Co., Ltd.
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -41,6 +41,9 @@ message CallStackSample {
     // index of SymbolTableFile::symbol_name, base from 0
     // -1 means not found
     optional int32 function_name_id = 3;
+  
+    // loaded function base vaddr
+    optional uint64 loaded_vaddr = 4;
   }
 
   repeated CallStackFrame callStackFrame = 3;
diff --git a/src/report_protobuf_file.cpp b/src/report_protobuf_file.cpp
index 994a4d5..42aa0da 100644
--- a/src/report_protobuf_file.cpp
+++ b/src/report_protobuf_file.cpp
@@ -126,7 +126,7 @@ bool ReportProtobufFileWriter::ProcessSampleRecord(
     for (const CallFrame &frame : recordSample.callFrames_) {
         auto callframe = sample->add_callstackframe();
         callframe->set_symbols_vaddr(frame.vaddrInFile_);
-
+        callframe->set_loaded_vaddr(frame.ip_ - frame.offsetToVaddr_);
         for (auto fileIt = symbolsFiles.begin(); fileIt != symbolsFiles.end(); fileIt++) {
             if (fileIt->get()->filePath_ == frame.filePath_) {
                 callframe->set_symbols_file_id(fileIt - symbolsFiles.begin());