source: vbox/trunk/src/VBox/Devices/EFI/tools/include/X64/ProcessorBind.h@ 47477

/** @file
  Processor or Compiler specific defines and types x64 (Intel(r) EM64T, AMD64).

  Copyright (c) 2006 - 2008, 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.

  File Name:  ProcessorBind.h

**/

#ifndef __PROCESSOR_BIND_H__
#define __PROCESSOR_BIND_H__

//
// Define the processor type so other code can make processor based choices
//
#define MDE_CPU_X64


//
// Make sure we are useing the correct packing rules per EFI specification
//
#ifndef __GNUC__
#pragma pack()
#endif


#if _MSC_EXTENSIONS 
    
//
// Disable warning that make it impossible to compile at /W4
// This only works for Microsoft* tools
//

//
// Disabling bitfield type checking warnings.
//
#pragma warning ( disable : 4214 )

//
// Disabling the unreferenced formal parameter warnings.
//
#pragma warning ( disable : 4100 )

//
// Disable slightly different base types warning as CHAR8 * can not be set
// to a constant string.
//
#pragma warning ( disable : 4057 )

//
// ASSERT(FALSE) or while (TRUE) are legal constructs so suppress this warning
//
#pragma warning ( disable : 4127 )


#endif


#if !defined(__GNUC__) && (__STDC_VERSION__ < 199901L)
  //
  // No ANSI C 2000 stdint.h integer width declarations, so define equivalents
  //
 
  #if _MSC_EXTENSIONS 
    

    //
    // use Microsoft C compiler dependent integer width types 
    //
    typedef unsigned __int64    UINT64;
    typedef __int64             INT64;
    typedef unsigned __int32    UINT32;
    typedef __int32             INT32;
    typedef unsigned short      UINT16;
    typedef unsigned short      CHAR16;
    typedef short               INT16;
    typedef unsigned char       BOOLEAN;
    typedef unsigned char       UINT8;
    typedef char                CHAR8;
    typedef char                INT8;
  #else
    #ifdef _EFI_P64 
      //
      // P64 - is Intel Itanium(TM) speak for pointers being 64-bit and longs and ints 
      //  are 32-bits
      //
      typedef unsigned long long  UINT64;
      typedef long long           INT64;
      typedef unsigned int        UINT32;
      typedef int                 INT32;
      typedef unsigned short      CHAR16;
      typedef unsigned short      UINT16;
      typedef short               INT16;
      typedef unsigned char       BOOLEAN;
      typedef unsigned char       UINT8;
      typedef char                CHAR8;
      typedef char                INT8;
    #else
      //
      // Assume LP64 - longs and pointers are 64-bit. Ints are 32-bit.
      //
      typedef unsigned long   UINT64;
      typedef long            INT64;
      typedef unsigned int    UINT32;
      typedef int             INT32;
      typedef unsigned short  UINT16;
      typedef unsigned short  CHAR16;
      typedef short           INT16;
      typedef unsigned char   BOOLEAN;
      typedef unsigned char   UINT8;
      typedef char            CHAR8;
      typedef char            INT8;
    #endif
  #endif

  #define UINT8_MAX 0xff

#else
  //
  // Use ANSI C 2000 stdint.h integer width declarations
  //
  #include <stdint.h>
  typedef uint8_t   BOOLEAN;
  typedef int8_t    INT8;
  typedef uint8_t   UINT8;
  typedef int16_t   INT16;
  typedef uint16_t  UINT16;
  typedef int32_t   INT32;
  typedef uint32_t  UINT32;
  typedef int64_t   INT64;
  typedef uint64_t  UINT64;
  typedef char      CHAR8;
  typedef uint16_t  CHAR16;

#endif

typedef UINT64  UINTN;
typedef INT64   INTN;


//
// Processor specific defines
//
#define MAX_BIT     0x8000000000000000
#define MAX_2_BITS  0xC000000000000000

//
// Maximum legal Itanium-based address
//
#define MAX_ADDRESS   0xFFFFFFFFFFFFFFFF

//
// Modifier to ensure that all protocol member functions and EFI intrinsics
// use the correct C calling convention. All protocol member functions and
// EFI intrinsics are required to modify their member functions with EFIAPI.
//
#if _MSC_EXTENSIONS 
  ///
  /// Define the standard calling convention regardless of optimization level.
  /// __cdecl is Microsoft* specific C extension.
  /// 
  #define EFIAPI __cdecl  
#elif __GNUC__
  ///
  /// Define the standard calling convention regardless of optimization level.
  /// efidecl is an extension to GCC that supports the differnece between x64
  /// GCC ABI and x64 Microsoft* ABI. EFI is closer to the Microsoft* ABI and
  /// EFIAPI makes sure the right ABI is used for public interfaces. 
  /// eficecl is a work in progress and we do not yet have the compiler
  ///
  #define EFIAPI 
#else
  #define EFIAPI       
#endif

//
// The Microsoft* C compiler can removed references to unreferenced data items
//  if the /OPT:REF linker option is used. We defined a macro as this is a 
//  a non standard extension
//
#if _MSC_EXTENSIONS
  #define GLOBAL_REMOVE_IF_UNREFERENCED __declspec(selectany)
#else
  #define GLOBAL_REMOVE_IF_UNREFERENCED
#endif

#endif