diff options
| author | Guo Mang <mang.guo@intel.com> | 2017-08-02 09:54:47 +0800 |
|---|---|---|
| committer | Guo Mang <mang.guo@intel.com> | 2017-09-05 19:45:08 +0800 |
| commit | 6c128c65b5ec0e5b8b5a0ccb165f3afd29e485f8 (patch) | |
| tree | 444372d92a0ae8991fe4d15eb3937df43690dfda /Nt32Pkg/Sec/Stack.asm | |
| parent | b207c6434d7a5a4502975d322312e07017e8a8cb (diff) | |
| download | edk2-platforms-6c128c65b5ec0e5b8b5a0ccb165f3afd29e485f8.tar.xz | |
Remove core packages since we can get them from edk2 repository
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Guo Mang <mang.guo@intel.com>
Diffstat (limited to 'Nt32Pkg/Sec/Stack.asm')
| -rw-r--r-- | Nt32Pkg/Sec/Stack.asm | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/Nt32Pkg/Sec/Stack.asm b/Nt32Pkg/Sec/Stack.asm deleted file mode 100644 index 7defff6bb1..0000000000 --- a/Nt32Pkg/Sec/Stack.asm +++ /dev/null @@ -1,94 +0,0 @@ -;------------------------------------------------------------------------------
-;
-; Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
-; 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:
-;
-; Stack.asm
-;
-; Abstract:
-;
-; Switch the stack from temporary memory to permenent memory.
-;
-;------------------------------------------------------------------------------
-
- .586p
- .model flat,C
- .code
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; SecSwitchStack (
-; UINT32 TemporaryMemoryBase,
-; UINT32 PermenentMemoryBase
-; );
-;------------------------------------------------------------------------------
-SecSwitchStack PROC
- ;
- ; Save three register: eax, ebx, ecx
- ;
- push eax
- push ebx
- push ecx
- push edx
-
- ;
- ; !!CAUTION!! this function address's is pushed into stack after
- ; migration of whole temporary memory, so need save it to permenent
- ; memory at first!
- ;
-
- mov ebx, [esp + 20] ; Save the first parameter
- mov ecx, [esp + 24] ; Save the second parameter
-
- ;
- ; Save this function's return address into permenent memory at first.
- ; Then, Fixup the esp point to permenent memory
- ;
- mov eax, esp
- sub eax, ebx
- add eax, ecx
- mov edx, dword ptr [esp] ; copy pushed register's value to permenent memory
- mov dword ptr [eax], edx
- mov edx, dword ptr [esp + 4]
- mov dword ptr [eax + 4], edx
- mov edx, dword ptr [esp + 8]
- mov dword ptr [eax + 8], edx
- mov edx, dword ptr [esp + 12]
- mov dword ptr [eax + 12], edx
- mov edx, dword ptr [esp + 16] ; Update this function's return address into permenent memory
- mov dword ptr [eax + 16], edx
- mov esp, eax ; From now, esp is pointed to permenent memory
-
- ;
- ; Fixup the ebp point to permenent memory
- ;
- mov eax, ebp
- sub eax, ebx
- add eax, ecx
- mov ebp, eax ; From now, ebp is pointed to permenent memory
-
- ;
- ; Fixup callee's ebp point for PeiDispatch
- ;
- mov eax, dword ptr [ebp]
- sub eax, ebx
- add eax, ecx
- mov dword ptr [ebp], eax ; From now, Temporary's PPI caller's stack is in permenent memory
-
- pop edx
- pop ecx
- pop ebx
- pop eax
- ret
-SecSwitchStack ENDP
-
- END
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