diff options
| author | vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-06-02 07:58:31 +0000 |
|---|---|---|
| committer | vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-06-02 07:58:31 +0000 |
| commit | 7d7c2b4640a6b46eed90af5777f8d22504519a8e (patch) | |
| tree | 9c0a04ff526f8204c6977720cea02847871fec41 /MdePkg/Library/BaseLib/Ia32 | |
| parent | 6fc80a45b523d64f078f3d42f0994a36c02b8786 (diff) | |
| download | edk2-platforms-7d7c2b4640a6b46eed90af5777f8d22504519a8e.tar.xz | |
Deleted x64\SwitchStack.c Ipf/SwitchStack.c.
Added SwitchStack.c in Baselib\
Rename Ia32/SwitchStack.c to Ia32/InternalSwitchStack.c
Changed _SwitchStack() into InternalSwitchStack() in SwitchStack.asm and SwitchStack.s
Fixed one bug in LinkedList.c, that List length couldn't up to PcdMaximumLinkedListLength.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@394 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/BaseLib/Ia32')
| -rw-r--r-- | MdePkg/Library/BaseLib/Ia32/InternalSwitchStack.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/Ia32/InternalSwitchStack.c b/MdePkg/Library/BaseLib/Ia32/InternalSwitchStack.c new file mode 100644 index 0000000000..ab8116b4b5 --- /dev/null +++ b/MdePkg/Library/BaseLib/Ia32/InternalSwitchStack.c @@ -0,0 +1,52 @@ +/** @file
+ SwitchStack() function for IA-32.
+
+ Copyright (c) 2006, 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: InternalSwitchStack.c
+
+**/
+
+/**
+ 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.
+
+ @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
+InternalSwitchStack (
+ IN SWITCH_STACK_ENTRY_POINT EntryPoint,
+ IN VOID *Context1,
+ IN VOID *Context2,
+ IN VOID *NewStack
+ )
+{
+ BASE_LIBRARY_JUMP_BUFFER JumpBuffer;
+
+ JumpBuffer.Eip = (UINTN)EntryPoint;
+ JumpBuffer.Esp = (UINTN)NewStack - sizeof (VOID*);
+ JumpBuffer.Esp -= sizeof (Context1) + sizeof (Context2);
+ ((VOID**)JumpBuffer.Esp)[1] = Context1;
+ ((VOID**)JumpBuffer.Esp)[2] = Context2;
+
+ LongJump (&JumpBuffer, (UINTN)-1);
+}
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