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diff --git a/StdLib/Include/setjmp.h b/StdLib/Include/setjmp.h
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+/** @file
+  The header <setjmp.h> defines the macro setjmp, and declares one function
+  and one type, for bypassing the normal function call and return discipline.
+
+Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials are licensed and made available under
+the terms and conditions of the BSD License that 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.
+
+**/
+#ifndef _SETJMP_H
+#define _SETJMP_H
+#include  <Library/BaseLib.h>
+#include  <sys/EfiCdefs.h>
+
+/** jmp_buf is an array type suitable for holding the information needed to
+    restore a calling environment. The environment of a call to the setjmp
+    macro consists of information sufficient for a call to the longjmp function
+    to return execution to the correct block and invocation of that block, were
+    it called recursively. It does not include the state of the floating-point
+    status flags, of open files, or of any other component of the abstract
+    machine.
+**/
+typedef BASE_LIBRARY_JUMP_BUFFER jmp_buf[1];
+
+/** The setjmp macro saves its calling environment in its jmp_buf argument for
+    later use by the longjmp function.
+
+    The Standard does not specify whether setjmp is a macro or an identifier
+    declared with external linkage. If a macro definition is suppressed in
+    order to access an actual function, or a program defines an external
+    identifier with the name setjmp, the behavior is undefined by the Standard.
+
+    @param[in,out]  env   A jmp_buf type object into which
+                          the current environment is stored.
+
+    @return   If the return is from a direct invocation, the setjmp macro
+    returns the value zero. If the return is from a call to the longjmp
+    function, the setjmp macro returns a nonzero value.
+**/
+#define setjmp(env)   (INTN)SetJump((env))
+
+/** The longjmp function restores the environment saved by the most recent
+    invocation of the setjmp macro in the same invocation of the program with
+    the corresponding jmp_buf argument. If there has been no such invocation,
+    or if the function containing the invocation of the setjmp macro has
+    terminated execution in the interim, or if the invocation of the setjmp
+    macro was within the scope of an identifier with variably modified type and
+    execution has left that scope in the interim, the behavior is undefined.
+
+    After longjmp is completed, program execution continues as if the
+    corresponding invocation of the setjmp macro had just returned the value
+    specified by val. The longjmp function cannot cause the setjmp macro to
+    return the value 0; if val is 0, the setjmp macro returns the value 1.
+**/
+extern void longjmp(jmp_buf env, int val);
+
+#endif  /* _SETJMP_H */