From cb41bea732ae6319ebbc9ccfa940e7433aae7a18 Mon Sep 17 00:00:00 2001 From: vanjeff Date: Thu, 22 Mar 2007 03:03:32 +0000 Subject: 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 --- MdePkg/Library/BaseLib/Ipf/InternalSwitchStack.c | 68 ++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 MdePkg/Library/BaseLib/Ipf/InternalSwitchStack.c (limited to 'MdePkg/Library/BaseLib/Ipf/InternalSwitchStack.c') diff --git a/MdePkg/Library/BaseLib/Ipf/InternalSwitchStack.c b/MdePkg/Library/BaseLib/Ipf/InternalSwitchStack.c new file mode 100644 index 0000000000..60d0a37562 --- /dev/null +++ b/MdePkg/Library/BaseLib/Ipf/InternalSwitchStack.c @@ -0,0 +1,68 @@ +/** @file + SwitchStack() function for IPF. + + Copyright (c) 2007, 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. + + Module Name: InternalSwitchStack.c + +**/ + +#include + +/** + 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. + 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(). + + @param EntryPoint A pointer to function to call with the new stack. + @param Context1 A pointer to the context to pass into the EntryPoint + function. + @param Context2 A pointer to the context to pass into the EntryPoint + 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 VA_LIST Marker + ) + +{ + VOID *NewBsp; + + // + // Get new backing store pointer from variable list + // + NewBsp = VA_ARG (Marker, VOID *); + + // + // Stack should be aligned with CPU_STACK_ALIGNMENT + // + ASSERT (((UINTN)NewStack & (CPU_STACK_ALIGNMENT - 1)) == 0); + ASSERT (((UINTN)NewBsp & (CPU_STACK_ALIGNMENT - 1)) == 0); + + AsmSwitchStackAndBackingStore (EntryPoint, Context1, Context2, NewStack, NewBsp); +} -- cgit v1.2.3