1 files changed, 69 insertions, 0 deletions
diff --git a/src/debug/ildbsymlib/umisc.h b/src/debug/ildbsymlib/umisc.h
new file mode 100644
index 0000000000..fda40474ff
--- /dev/null
+++ b/src/debug/ildbsymlib/umisc.h
@@ -0,0 +1,69 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+// ===========================================================================
+// File: umisc.h
+//
+
+// ===========================================================================
+
+
+// Abstract:
+//
+//	A collection of utility macros.
+//
+
+#ifndef UMISC_H
+#define UMISC_H
+
+#define COM_METHOD  HRESULT STDMETHODCALLTYPE
+
+inline HRESULT HrFromWin32(DWORD dwWin32Error)
+{
+    return HRESULT_FROM_WIN32(dwWin32Error);
+}
+
+// Some helper #def's to safely Release, close & delete Objects under
+// failure conditions
+	
+#define RELEASE(x) 			    \
+	do						    \
+	{						    \
+		if (x)				    \
+		{					    \
+            IUnknown *punk = x; \
+            x = NULL;           \
+            punk->Release();    \
+		}					    \
+	} while (0)				
+	
+
+#include "debugmacros.h"	
+//
+// Good for verifying params withing range.
+//
+#define IfFalseGo(expr, HR) IfFailGo((expr) ? S_OK : (HR))
+
+// ----------------------------------------------------------------------------
+// Validation macros
+// Note that the Win32 APIs like IsBadReadPtr are banned
+//
+#define IsValidReadPtr(ptr, type) ((ptr)!=NULL)
+
+#define IsValidWritePtr(ptr, type) ((ptr)!=NULL)
+
+#define IsValidReadBufferPtr(ptr, type, len) ((ptr)!=NULL)
+
+#define IsValidWriteBufferPtr(ptr, type, len) ((ptr)!=NULL)
+
+#define IsValidInterfacePtr(ptr, type) ((ptr)!=NULL)
+
+#define IsValidCodePtr(ptr) ((ptr)!=NULL)
+
+#define IsValidStringPtr(ptr) ((ptr)!=NULL)
+
+#define IsValidIID(iid) TRUE
+
+#define IsValidCLSID(clsid) TRUE
+
+#endif