1 files changed, 27 insertions, 0 deletions
diff --git a/roms/edk2/ArmPkg/Library/CompilerIntrinsicsLib/memcpy_ms.c b/roms/edk2/ArmPkg/Library/CompilerIntrinsicsLib/memcpy_ms.c
new file mode 100644
index 000000000..34feef5a4
--- /dev/null
+++ b/roms/edk2/ArmPkg/Library/CompilerIntrinsicsLib/memcpy_ms.c
@@ -0,0 +1,27 @@
+//------------------------------------------------------------------------------
+//
+// Copyright (c) 2017, Pete Batard. All rights reserved.<BR>
+//
+// SPDX-License-Identifier: BSD-2-Clause-Patent
+//
+//------------------------------------------------------------------------------
+
+#if defined(_M_ARM64)
+typedef unsigned __int64  size_t;
+#else
+typedef unsigned __int32  size_t;
+#endif
+
+void* memcpy(void *, const void *, size_t);
+#pragma intrinsic(memcpy)
+#pragma function(memcpy)
+void* memcpy(void *dest, const void *src, size_t n)
+{
+  unsigned char *d = dest;
+  unsigned char const *s = src;
+
+  while (n--)
+    *d++ = *s++;
+
+  return dest;
+}