diff --git a/BaseTools/Source/Python/AutoGen/AutoGen.py b/BaseTools/Source/Python/AutoGen/AutoGen.py
index 6c9a4ffd2f..5dc2cfd7bd 100644
--- a/BaseTools/Source/Python/AutoGen/AutoGen.py
+++ b/BaseTools/Source/Python/AutoGen/AutoGen.py
@@ -2607,7 +2607,11 @@ class ModuleAutoGen(AutoGen):
             AutoGenH = TemplateString()
             StringH = TemplateString()
             GenC.CreateCode(self, AutoGenC, AutoGenH, StringH, UniStringAutoGenC, UniStringBinBuffer)
-            if str(AutoGenC) != "":
+            #
+            # AutoGen.c is generated if there are library classes in inf, or there are object files
+            #
+            if str(AutoGenC) != "" and (len(self.Module.LibraryClasses) > 0
+                                        or TAB_OBJECT_FILE in self.FileTypes):
                 AutoFile = PathClass(gAutoGenCodeFileName, self.DebugDir)
                 self._AutoGenFileList[AutoFile] = str(AutoGenC)
                 self._ApplyBuildRule(AutoFile, TAB_UNKNOWN_FILE)
diff --git a/BaseTools/Source/Python/Common/DataType.py b/BaseTools/Source/Python/Common/DataType.py
index cd420d168f..f1408569e0 100644
--- a/BaseTools/Source/Python/Common/DataType.py
+++ b/BaseTools/Source/Python/Common/DataType.py
@@ -468,6 +468,7 @@ TAB_UNICODE_FILE = "UNICODE-TEXT-FILE"
 TAB_DEPENDENCY_EXPRESSION_FILE = "DEPENDENCY-EXPRESSION-FILE"
 TAB_UNKNOWN_FILE = "UNKNOWN-TYPE-FILE"
 TAB_DEFAULT_BINARY_FILE = "_BINARY_FILE_"
+TAB_OBJECT_FILE = "OBJECT-FILE"
 
 # used by BRG
 TAB_BRG_PCD = 'PCD'