1 files changed, 12 insertions, 1 deletions
diff --git a/MdePkg/Include/IndustryStandard/PeImage.h b/MdePkg/Include/IndustryStandard/PeImage.h
index dd4cc25483..8646ff22b5 100644
--- a/MdePkg/Include/IndustryStandard/PeImage.h
+++ b/MdePkg/Include/IndustryStandard/PeImage.h
@@ -625,7 +625,8 @@ typedef struct {
   UINT32    FileOffset;  ///< The file pointer to the debug data.
 } EFI_IMAGE_DEBUG_DIRECTORY_ENTRY;
 
-#define EFI_IMAGE_DEBUG_TYPE_CODEVIEW  2    ///< The Visual C++ debug information.
+#define EFI_IMAGE_DEBUG_TYPE_CODEVIEW               2    ///< The Visual C++ debug information.
+#define EFI_IMAGE_DEBUG_TYPE_EX_DLLCHARACTERISTICS  20
 
 ///
 /// Debug Data Structure defined in Microsoft C++.
@@ -670,6 +671,16 @@ typedef struct {
 } EFI_IMAGE_DEBUG_CODEVIEW_MTOC_ENTRY;
 
 ///
+/// Extended DLL Characteristics
+///
+#define EFI_IMAGE_DLLCHARACTERISTICS_EX_CET_COMPAT          0x0001
+#define EFI_IMAGE_DLLCHARACTERISTICS_EX_FORWARD_CFI_COMPAT  0x0040
+
+typedef struct {
+  UINT32    DllCharacteristicsEx;
+} EFI_IMAGE_DEBUG_EX_DLLCHARACTERISTICS_ENTRY;
+
+///
 /// Resource format.
 ///
 typedef struct {