ArmPkg/Library/CompilerIntrinsicsLib: Enable VS2017/ARM builds

[mirror_edk2.git] / ArmPkg / Library / CompilerIntrinsicsLib / memcpy_ms.c

diff --git a/ArmPkg/Library/CompilerIntrinsicsLib/memcpy_ms.c b/ArmPkg/Library/CompilerIntrinsicsLib/memcpy_ms.c
new file mode 100644 (file)
index 0000000..90bbbb9
--- /dev/null
+++ b/ArmPkg/Library/CompilerIntrinsicsLib/memcpy_ms.c
@@ -0,0 +1,34 @@
+//------------------------------------------------------------------------------\r
+//\r
+// Copyright (c) 2017, Pete Batard. All rights reserved.<BR>\r
+//\r
+// This program and the accompanying materials are licensed and made\r
+// available under the terms and conditions of the BSD License which\r
+// accompanies this distribution.  The full text of the license may be\r
+// found at http://opensource.org/licenses/bsd-license.php\r
+//\r
+// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR\r
+// IMPLIED.\r
+//\r
+//------------------------------------------------------------------------------\r
+\r
+#if defined(_M_ARM64)\r
+typedef unsigned __int64  size_t;\r
+#else\r
+typedef unsigned __int32  size_t;\r
+#endif\r
+\r
+void* memcpy(void *, const void *, size_t);\r
+#pragma intrinsic(memcpy)\r
+#pragma function(memcpy)\r
+void* memcpy(void *dest, const void *src, size_t n)\r
+{\r
+  unsigned char *d = dest;\r
+  unsigned char const *s = src;\r
+\r
+  while (n--)\r
+    *d++ = *s++;\r
+\r
+  return dest;\r
+}\r