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author | vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524> | 2007-06-22 03:21:45 +0000 |
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committer | vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524> | 2007-06-22 03:21:45 +0000 |
commit | e1f414b6a7d8a0424e0e01f655b09a4612b4d0e8 (patch) | |
tree | 32d74f9463f0b5c6a28ff6aff73709219d437604 /MdePkg/Library/BaseLib/SwitchStack.c | |
parent | e053747a04ad7b8d71c7593b93e1575ba0057a91 (diff) | |
download | edk2-e1f414b6a7d8a0424e0e01f655b09a4612b4d0e8.tar.gz edk2-e1f414b6a7d8a0424e0e01f655b09a4612b4d0e8.tar.bz2 edk2-e1f414b6a7d8a0424e0e01f655b09a4612b4d0e8.zip |
Import some basic libraries instances for Mde Packages.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2704 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/BaseLib/SwitchStack.c')
-rw-r--r-- | MdePkg/Library/BaseLib/SwitchStack.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/SwitchStack.c b/MdePkg/Library/BaseLib/SwitchStack.c new file mode 100644 index 0000000000..39aec86391 --- /dev/null +++ b/MdePkg/Library/BaseLib/SwitchStack.c @@ -0,0 +1,71 @@ +/** @file
+ Switch Stack functions.
+
+ 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
+ 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: SwitchStack.c
+
+**/
+
+//
+// Include common header file for this module.
+//
+#include "CommonHeader.h"
+
+#include <BaseLibInternals.h>
+
+/**
+ 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().
+
+ @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.
+
+**/
+VOID
+EFIAPI
+SwitchStack (
+ IN SWITCH_STACK_ENTRY_POINT EntryPoint,
+ IN VOID *Context1, OPTIONAL
+ IN VOID *Context2, OPTIONAL
+ IN VOID *NewStack,
+ ...
+ )
+{
+ VA_LIST Marker;
+
+ ASSERT (EntryPoint != NULL);
+ ASSERT (NewStack != NULL);
+
+ VA_START (Marker, NewStack);
+
+ InternalSwitchStack (EntryPoint, Context1, Context2, NewStack, Marker);
+
+ //
+ // InternalSwitchStack () will never return
+ //
+ ASSERT (FALSE);
+}
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