Use capital S for GCC assembly. This enables pre-processing for PCD support.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@576 6f19259b-4bc3-4df7-8a09-765794883524

MdePkg/Library/BaseLib/Ia32/ReadMsr64.S

@@ -0,0 +1,57 @@
+#------------------------------------------------------------------------------
+#
+# Copyright (c) 2006, Intel Corporation
+# All rights reserved. This program and the accompanying materials
+# are licensed and made available under the terms and conditions of the BSD License
+# which accompanies this distribution.  The full text of the license may be found at
+# http://opensource.org/licenses/bsd-license.php
+#
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+# Module Name:
+#
+#   ReadMsr64.Asm
+#
+# Abstract:
+#
+#   AsmReadMsr64 function
+#
+# Notes:
+#
+#------------------------------------------------------------------------------
+
+
+
+     
+
+#------------------------------------------------------------------------------
+# UINT32
+# EFIAPI
+# AsmReadMsr32 (
+#   IN UINT32  Index
+#   );
+#------------------------------------------------------------------------------
+.global _AsmReadMsr32
+_AsmReadMsr32: 
+    #
+    # AsmReadMsr32 shares the same implementation with AsmReadMsr64 and thus no
+    # code inside this function
+    #
+
+
+#------------------------------------------------------------------------------
+# UINT64
+# EFIAPI
+# AsmReadMsr64 (
+#   IN UINT64  Index
+#   );
+#------------------------------------------------------------------------------
+.global _AsmReadMsr64
+_AsmReadMsr64: 
+    movl    4(%esp),%ecx
+    rdmsr
+    ret
+
+
+