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MdePkg BaseLib: Add the missing nasm source file InternalSwitchStack.nasm 

BaseLib Ia32 InternalSwitchStack.S has no matched InternalSwitchStack.nasm.
Use ObjDump to verify the output object files be same.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
This commit is contained in:
Liming Gao 2016-07-14 14:02:47 +08:00
parent 970a9a8ba3
commit 6596018924
2 changed files with 49 additions and 1 deletions
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3
MdePkg/Library/BaseLib/BaseLib.inf
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@ -1,7 +1,7 @@
## @file ## @file
# Base Library implementation. # Base Library implementation.
# #
# Copyright (c) 2007 - 2015, Intel Corporation. All rights reserved.<BR> # Copyright (c) 2007 - 2016, Intel Corporation. All rights reserved.<BR>
# Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR> # Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
# Portions copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR> # Portions copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>
# #
@ -410,6 +410,7 @@
Ia32/InternalSwitchStack.c | MSFT Ia32/InternalSwitchStack.c | MSFT
Ia32/InternalSwitchStack.c | INTEL Ia32/InternalSwitchStack.c | INTEL
Ia32/InternalSwitchStack.S | GCC Ia32/InternalSwitchStack.S | GCC
Ia32/InternalSwitchStack.nasm | GCC
Ia32/Non-existing.c Ia32/Non-existing.c
Unaligned.c Unaligned.c
X86WriteIdtr.c X86WriteIdtr.c

47
MdePkg/Library/BaseLib/Ia32/InternalSwitchStack.nasm Normal file
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@ -0,0 +1,47 @@
;------------------------------------------------------------------------------
;
; Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
; Portions copyright (c) 2011, Apple Inc. 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:
;
; InternalSwitchStack.nasm
;
; Abstract:
;
; Implementation of a stack switch on IA-32.
;
;------------------------------------------------------------------------------
SECTION .text
;------------------------------------------------------------------------------
; VOID
; EFIAPI
; InternalSwitchStack (
; IN SWITCH_STACK_ENTRY_POINT EntryPoint,
; IN VOID *Context1, OPTIONAL
; IN VOID *Context2, OPTIONAL
; IN VOID *NewStack
; );
;------------------------------------------------------------------------------
global ASM_PFX(InternalSwitchStack)
ASM_PFX(InternalSwitchStack):
push ebp
mov ebp, esp
mov esp, [ebp + 20] ; switch stack
sub esp, 8
mov eax, [ebp + 16]
mov [esp + 4], eax
mov eax, [ebp + 12]
mov [esp], eax
push 0 ; keeps gdb from unwinding stack
jmp dword [ebp + 8] ; call and never return