Add in the 1st version of ECP.

[mirror_edk2.git] / EdkCompatibilityPkg / Foundation / Library / EdkIIGlueLib / Library / BaseLib / x86ReadGdtr.c

diff --git a/EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Library/BaseLib/x86ReadGdtr.c b/EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Library/BaseLib/x86ReadGdtr.c
new file mode 100644 (file)
index 0000000..b271f7e
--- /dev/null
+++ b/EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Library/BaseLib/x86ReadGdtr.c
@@ -0,0 +1,44 @@
+/*++\r
+\r
+Copyright (c) 2004 - 2006, Intel Corporation                                                         \r
+All rights reserved. This program and the accompanying materials                          \r
+are licensed and made available under the terms and conditions of the BSD License         \r
+which accompanies this distribution.  The full text of the license may be found at        \r
+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 IMPLIED.  \r
+\r
+\r
+Module Name:\r
+\r
+  x86ReadGdtr.c\r
+  \r
+Abstract: \r
+\r
+  IA-32/x64 specific functions.\r
+\r
+--*/\r
+\r
+#include "BaseLibInternal.h"\r
+\r
+/**\r
+  Reads the current Global Descriptor Table Register(GDTR) descriptor.\r
+\r
+  Reads and returns the current GDTR descriptor and returns it in Gdtr. This\r
+  function is only available on IA-32 and X64.\r
+\r
+  If Gdtr is NULL, then ASSERT().\r
+\r
+  @param  Gdtr  Pointer to a GDTR descriptor.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+AsmReadGdtr (\r
+  OUT     IA32_DESCRIPTOR           *Gdtr\r
+  )\r
+{\r
+  ASSERT (Gdtr != NULL);\r
+  InternalX86ReadGdtr (Gdtr);\r
+}\r