MdePkg/Library/BaseLib/SwitchStack.c File Reference


Functions

VOID EFIAPI SwitchStack (IN SWITCH_STACK_ENTRY_POINT EntryPoint, IN VOID *Context1, IN VOID *Context2, IN VOID *NewStack,...)

Detailed Description

Switch Stack functions.

Copyright (c) 2006 - 2008, 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.


Function Documentation

VOID EFIAPI SwitchStack ( IN SWITCH_STACK_ENTRY_POINT  EntryPoint,
IN VOID *  Context1,
IN VOID *  Context2,
IN VOID *  NewStack,
  ... 
)

Transfers control to a function starting with a new stack.

Transfers control to the function specified by EntryPoint using the new stack specified by NewStack and passing in the parameters specified by Context1 and Context2. Context1 and Context2 are optional and may be NULL. The function EntryPoint must never return. This function supports a variable number of arguments following the NewStack parameter. These additional arguments are ignored on IA-32, x64, and EBC. IPF CPUs expect one additional parameter of type VOID * that specifies the new backing store pointer.

If EntryPoint is NULL, then ASSERT(). If NewStack is NULL, then ASSERT().

Parameters:
EntryPoint A pointer to function to call with the new stack.
Context1 A pointer to the context to pass into the EntryPoint function.
Context2 A pointer to the context to pass into the EntryPoint function.
NewStack A pointer to the new stack to use for the EntryPoint function.
... This variable argument list is ignored for IA32, x64, and EBC. For IPF, this variable argument list is expected to contain a single parameter of type VOID * that specifies the new backing store pointer.

References ASSERT, CPU_STACK_ALIGNMENT, FALSE, InternalSwitchStack(), NULL, VA_END, and VA_START.

Referenced by PeriodicSmiDispatchFunctionOnCpu().


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