1. Removed AsmSwitchStackAndBackingStore from BaseLib.h

2. Modified SwitchStack definition update to MWG 0.60e.
3. Added BaseLib/Ipf/InternalSwitchStack.c and removed BaseLib/Ipf/Non-existing.c
4. Updated any references of AsmSwitchStackAndBackingStore to SwichStack on IPF.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2499 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 20 insertions, 8 deletions

diff --git a/MdePkg/Library/BaseLib/Ebc/SwitchStack.c b/MdePkg/Library/BaseLib/Ebc/SwitchStack.c
index 8fadd4f384..d2861c4f85 100644
--- a/MdePkg/Library/BaseLib/Ebc/SwitchStack.c
+++ b/MdePkg/Library/BaseLib/Ebc/SwitchStack.c
@@ -1,7 +1,7 @@
 /** @file

   Switch Stack functions.

 

-  Copyright (c) 2006, Intel Corporation<BR>

+  Copyright (c) 2006 - 2007, Intel Corporation<BR>

   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

@@ -17,10 +17,13 @@
 /**

   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.

+  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.

+  Marker will be 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().

@@ -32,21 +35,30 @@
                       function.

   @param  NewStack    A pointer to the new stack to use for the EntryPoint

                       function.

+  @param  Marker      VA_LIST marker for the variable argument list.

 

 **/

 VOID

 EFIAPI

 InternalSwitchStack (

   IN      SWITCH_STACK_ENTRY_POINT  EntryPoint,

-  IN      VOID                      *Context1,  OPTIONAL

-  IN      VOID                      *Context2,  OPTIONAL

-  IN      VOID                      *NewStack

+  IN      VOID                      *Context1,   OPTIONAL

+  IN      VOID                      *Context2,   OPTIONAL

+  IN      VOID                      *NewStack,

+  IN      VA_LIST                   Marker

   )

+

 {

   //

   // This version of this function does not actually change the stack pointer

   // This is to support compilation of CPU types that do not support assemblers

   // such as EBC

   //

+

+  //

+  // Stack should be aligned with CPU_STACK_ALIGNMENT

+  //

+  ASSERT (((UINTN)NewStack & (CPU_STACK_ALIGNMENT - 1)) == 0);

+

   EntryPoint (Context1, Context2);

 }