MdePkg/Include/Arm/ProcessorBind.h

   1
   2 /** @file
   3   Processor or Compiler specific defines and types for ARM.
   4
   5   Copyright (c) 2006 - 2009, Intel Corporation
   6   Portions copyright (c) 2008-2009 Apple Inc. All rights reserved.
   7   All rights reserved. This program and the accompanying materials
   8   are licensed and made available under the terms and conditions of the BSD License
   9   which accompanies this distribution.  The full text of the license may be found at
  10   http://opensource.org/licenses/bsd-license.php
  11
  12   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  13   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  14
  15 **/
  16
  17 #ifndef __PROCESSOR_BIND_H__
  18 #define __PROCESSOR_BIND_H__
  19
  20 ///
  21 /// Define the processor type so other code can make processor based choices
  22 ///
  23 #define MDE_CPU_ARM
  24
  25 //
  26 // Make sure we are using the correct packing rules per EFI specification
  27 //
  28 #ifndef __GNUC__
  29 #pragma pack()
  30 #endif
  31
  32 #if _MSC_EXTENSIONS
  33   //
  34   // use Microsoft* C complier dependent interger width types
  35   //
  36   typedef unsigned __int64    UINT64;
  37   typedef __int64             INT64;
  38   typedef unsigned __int32    UINT32;
  39   typedef __int32             INT32;
  40   typedef unsigned short      UINT16;
  41   typedef unsigned short      CHAR16;
  42   typedef short               INT16;
  43   typedef unsigned char       BOOLEAN;
  44   typedef unsigned char       UINT8;
  45   typedef char                CHAR8;
  46   typedef char                INT8;
  47 #else
  48   //
  49   // Assume standard ARM alignment.
  50   // Need to check portability of long long
  51   //
  52   typedef unsigned long long  UINT64;
  53   typedef long long           INT64;
  54   typedef unsigned int        UINT32;
  55   typedef int                 INT32;
  56   typedef unsigned short      UINT16;
  57   typedef unsigned short      CHAR16;
  58   typedef short               INT16;
  59   typedef unsigned char       BOOLEAN;
  60   typedef unsigned char       UINT8;
  61   typedef char                CHAR8;
  62   typedef char                INT8;
  63 #endif
  64
  65 ///
  66 /// Unsigned value of native width.  (4 bytes on supported 32-bit processor instructions,
  67 /// 8 bytes on supported 64-bit processor instructions)
  68 ///
  69 typedef UINT32  UINTN;
  70
  71 ///
  72 /// Signed value of native width.  (4 bytes on supported 32-bit processor instructions,
  73 /// 8 bytes on supported 64-bit processor instructions)
  74 ///
  75 typedef INT32   INTN;
  76
  77 //
  78 // Processor specific defines
  79 //
  80
  81 ///
  82 /// A value of native width with the highest bit set.
  83 ///
  84 #define MAX_BIT      0x80000000
  85
  86 ///
  87 /// A value of native width with the two highest bits set.
  88 ///
  89 #define MAX_2_BITS   0xC0000000
  90
  91 ///
  92 /// Maximum legal ARM address
  93 ///
  94 #define MAX_ADDRESS  0xFFFFFFFF
  95
  96 ///
  97 /// The stack alignment required for ARM
  98 ///
  99 #define CPU_STACK_ALIGNMENT  sizeof(UINT64)
 100
 101 //
 102 // Modifier to ensure that all protocol member functions and EFI intrinsics
 103 // use the correct C calling convention. All protocol member functions and
 104 // EFI intrinsics are required to modify their member functions with EFIAPI.
 105 //
 106 #define EFIAPI
 107
 108 #if defined(__GNUC__)
 109   ///
 110   /// For GNU assembly code, .global or .globl can declare global symbols.
 111   /// Define this macro to unify the usage.
 112   ///
 113   #define ASM_GLOBAL .globl
 114 #endif
 115
 116 /**
 117   Return the pointer to the first instruction of a function given a function pointer.
 118   On ARM CPU architectures, these two pointer values are the same,
 119   so the implementation of this macro is very simple.
 120
 121   @param  FunctionPointer   A pointer to a function.
 122
 123   @return The pointer to the first instruction of a function given a function pointer.
 124
 125 **/
 126 #define FUNCTION_ENTRY_POINT(FunctionPointer) (FunctionPointer)
 127
 128 #endif