/** @file\r
Switch Stack functions.\r
\r
- Copyright (c) 2006 - 2007, Intel Corporation<BR>\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
- Module Name: SwitchStack.c\r
+ Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
+ SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
-#include <BaseLibInternals.h>\r
+#include "BaseLibInternals.h"\r
\r
/**\r
Transfers control to a function starting with a new stack.\r
function.\r
@param NewStack A pointer to the new stack to use for the EntryPoint\r
function.\r
+ @param ... This variable argument list is ignored for IA32, x64, and EBC.\r
+ For IPF, this variable argument list is expected to contain\r
+ a single parameter of type VOID * that specifies the new backing\r
+ store pointer.\r
+\r
\r
**/\r
VOID\r
EFIAPI\r
SwitchStack (\r
IN SWITCH_STACK_ENTRY_POINT EntryPoint,\r
- IN VOID *Context1, OPTIONAL\r
- IN VOID *Context2, OPTIONAL\r
+ IN VOID *Context1 OPTIONAL,\r
+ IN VOID *Context2 OPTIONAL,\r
IN VOID *NewStack,\r
...\r
)\r
{\r
- VA_LIST Marker;\r
+ VA_LIST Marker;\r
\r
- ASSERT (EntryPoint != NULL && NewStack != NULL);\r
+ ASSERT (EntryPoint != NULL);\r
+ ASSERT (NewStack != NULL);\r
+\r
+ //\r
+ // New stack must be aligned with CPU_STACK_ALIGNMENT\r
+ //\r
+ ASSERT (((UINTN)NewStack & (CPU_STACK_ALIGNMENT - 1)) == 0);\r
\r
VA_START (Marker, NewStack);\r
\r
InternalSwitchStack (EntryPoint, Context1, Context2, NewStack, Marker);\r
\r
+ VA_END (Marker);\r
+\r
//\r
// InternalSwitchStack () will never return\r
//\r