Clean up DxeIpl:

1. Remove the assembly by using IoLib & BaseLib in MdePkg
2. Refine code to pass CYGWIN GCC tool chain build 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7404 6f19259b-4bc3-4df7-8a09-765794883524

DuetPkg/DxeIpl/Ia32/CpuIoAccess.asm

@@ -1,62 +0,0 @@
-  title   CpuIoAccess.asm
-;------------------------------------------------------------------------------
-;
-; Copyright (c) 2006, 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:
-;   CpuIoAccess.asm
-; 
-; Abstract:
-;   CPU IO Abstraction
-;
-;------------------------------------------------------------------------------
-
-  .686
-  .MODEL FLAT,C
-  .CODE
-
-
-UINT8    TYPEDEF    BYTE
-UINT16   TYPEDEF    WORD
-UINT32   TYPEDEF    DWORD
-UINT64   TYPEDEF    QWORD
-UINTN    TYPEDEF    UINT32
-
-
-
-;------------------------------------------------------------------------------
-;  UINT8
-;  CpuIoRead8 (
-;    IN  UINT16  Port
-;    )
-;------------------------------------------------------------------------------
-CpuIoRead8 PROC  PUBLIC Port:UINT16
-    mov    dx,  Port
-    in     al,  dx
-    ret
-CpuIoRead8  ENDP
-
-
-;------------------------------------------------------------------------------
-;  VOID
-;  CpuIoWrite8 (
-;    IN  UINT16  Port,
-;    IN  UINT32  Data
-;    )
-;------------------------------------------------------------------------------
-CpuIoWrite8 PROC    PUBLIC Port:UINT16, Data:UINT32
-    mov    eax, Data
-    mov    dx,  Port
-    out    dx,  al
-    ret
-CpuIoWrite8  ENDP
-
-
-END

DuetPkg/DxeIpl/Ia32/CpuIoAccessGnu.c

@@ -1,27 +0,0 @@
-UINT8
-EFIAPI
-CpuIoRead8 (
-  IN  UINT16  Port
-  )
-{
-  UINT8     Data;
-  asm ( "inb %1, %0"
-      : "=a"(Data)
-      : "d"(Port)
-      );
-  return Data;
-}
-
-VOID
-EFIAPI
-CpuIoWrite8 (
-  IN  UINT16  Port,
-  IN  UINT32  Data
-  )
-{
-  asm ( "outb %1, %0"
-      : /* No outputs */
-      : "d"(Port)
-      , "a"((UINT8)Data)
-      );
-}

DuetPkg/DxeIpl/Ia32/EnterDxeCore.asm

@@ -1,64 +0,0 @@
-      TITLE   EnterDxeCore.asm: Assembly code for the entering DxeCore
-;------------------------------------------------------------------------------
-;*
-;*   Copyright 2006, 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.             
-;*   
-;*    EnterDxeCore.asm
-;*  
-;*   Abstract:
-;*
-;------------------------------------------------------------------------------
-
-.686p
-.model  flat        
-
-.code
-.stack
-.MMX
-.XMM
-
-;
-; VOID
-; EnterDxeMain (
-;   IN VOID *StackTop,
-;   IN VOID *DxeCoreEntryPoint,
-;   IN VOID *Hob,
-;   IN VOID *PageTable
-;   )
-;
-EnterDxeMain    PROC  C    \
-  StackTop:DWORD,          \
-  DxeCoreEntryPoint:DWORD, \
-  Hob:DWORD,               \
-  PageTable:DWORD
-  
-  mov   eax, PageTable
-;  mov   cr3, eax     ; load page table
-;  mov   eax, cr4
-;  bts   eax, 4       ; enable CR4.PSE
-;  mov   cr4, eax
-;  mov   eax, cr0
-;  bts   eax, 31      ; enable CR0.PG
-;  mov   cr0, eax
-  mov   ecx, DxeCoreEntryPoint
-  mov   eax, StackTop
-  mov   esp, eax
-  mov   edx, Hob
-  push  edx
-  push  0
-  jmp   ecx
-
-; should never get here
-  jmp $
-  ret
-
-EnterDxeMain    ENDP
-
-END

DuetPkg/DxeIpl/Ia32/EnterDxeCore.c

@@ -0,0 +1,31 @@
+/** @file
+  IA32 specific code to enter DxeCore
+
+Copyright (c) 2006 - 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.             
+
+**/
+
+#include "DxeIpl.h"
+
+VOID
+EnterDxeMain (
+  IN VOID *StackTop,
+  IN VOID *DxeCoreEntryPoint,
+  IN VOID *Hob,
+  IN VOID *PageTable
+  )
+{
+  SwitchStack (
+    (SWITCH_STACK_ENTRY_POINT)(UINTN)DxeCoreEntryPoint,
+    Hob,
+    NULL,
+    StackTop
+    );
+}

DuetPkg/DxeIpl/Ia32/EnterDxeCoreGnu.c

@@ -1,16 +0,0 @@
-VOID
-EnterDxeMain (
-  IN VOID *StackTop,
-  IN VOID *DxeCoreEntryPoint,
-  IN VOID *Hob,
-  IN VOID *PageTable
-  )
-{
-  __asm__ ( "movl  %0, %%esp \n\t"
-            "pushl %2 \n\t"
-            "pushl $0 \n\t"
-            "movl  %1, %%ecx \n\t"
-            "jmp  %%ecx"
-            ::"q"(StackTop), "q"(DxeCoreEntryPoint), "q"(Hob)
-          );
-}