-extern EFI_SYSTEM_TABLE *gST;\r
-extern EFI_BOOT_SERVICES *gBS;\r
-extern EFI_RUNTIME_SERVICES *gRT;\r
-extern EFI_DXE_SERVICES *gDS;\r
+extern EFI_SYSTEM_TABLE *gDxeCoreST;\r
+extern EFI_BOOT_SERVICES *gDxeCoreBS;\r
+extern EFI_RUNTIME_SERVICES *gDxeCoreRT;\r
+extern EFI_DXE_SERVICES *gDxeCoreDS;\r