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+/** @file
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+ Processor or Compiler specific defines and types for ARM.
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+
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+ Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
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+ Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
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+ This program and the accompanying materials
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+ are licensed and made available under the terms and conditions of the BSD License
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+ which accompanies this distribution. The full text of the license may be found at
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+ http://opensource.org/licenses/bsd-license.php
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+
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+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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+
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+**/
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+
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+#ifndef __PROCESSOR_BIND_H__
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+#define __PROCESSOR_BIND_H__
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+
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+FILE_LICENCE ( BSD3 );
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+
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+///
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+/// Define the processor type so other code can make processor based choices
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+///
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+#define MDE_CPU_ARM
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+
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+//
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+// Make sure we are using the correct packing rules per EFI specification
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+//
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+#ifndef __GNUC__
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+#pragma pack()
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+#endif
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+
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+#if _MSC_EXTENSIONS
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+ //
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+ // use Microsoft* C complier dependent integer width types
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+ //
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+ typedef unsigned __int64 UINT64;
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+ typedef __int64 INT64;
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+ typedef unsigned __int32 UINT32;
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+ typedef __int32 INT32;
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+ typedef unsigned short UINT16;
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+ typedef unsigned short CHAR16;
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+ typedef short INT16;
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+ typedef unsigned char BOOLEAN;
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+ typedef unsigned char UINT8;
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+ typedef char CHAR8;
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+ typedef signed char INT8;
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+#else
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+ //
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+ // Assume standard ARM alignment.
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+ // Need to check portability of long long
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+ //
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+ typedef unsigned long long UINT64;
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+ typedef long long INT64;
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+ typedef unsigned int UINT32;
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+ typedef int INT32;
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+ typedef unsigned short UINT16;
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+ typedef unsigned short CHAR16;
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+ typedef short INT16;
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+ typedef unsigned char BOOLEAN;
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+ typedef unsigned char UINT8;
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+ typedef char CHAR8;
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+ typedef signed char INT8;
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+#endif
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+
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+///
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+/// Unsigned value of native width. (4 bytes on supported 32-bit processor instructions,
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+/// 8 bytes on supported 64-bit processor instructions)
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+///
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+typedef UINT32 UINTN;
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+
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+///
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+/// Signed value of native width. (4 bytes on supported 32-bit processor instructions,
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+/// 8 bytes on supported 64-bit processor instructions)
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+///
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+typedef INT32 INTN;
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+
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+//
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+// Processor specific defines
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+//
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+
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+///
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+/// A value of native width with the highest bit set.
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+///
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+#define MAX_BIT 0x80000000
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+
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+///
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+/// A value of native width with the two highest bits set.
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+///
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+#define MAX_2_BITS 0xC0000000
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+
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+///
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+/// Maximum legal ARM address
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+///
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+#define MAX_ADDRESS 0xFFFFFFFF
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+
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+///
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+/// Maximum legal ARM INTN and UINTN values.
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+///
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+#define MAX_INTN ((INTN)0x7FFFFFFF)
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+#define MAX_UINTN ((UINTN)0xFFFFFFFF)
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+
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+///
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+/// The stack alignment required for ARM
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+///
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+#define CPU_STACK_ALIGNMENT sizeof(UINT64)
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+
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+//
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+// Modifier to ensure that all protocol member functions and EFI intrinsics
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+// use the correct C calling convention. All protocol member functions and
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+// EFI intrinsics are required to modify their member functions with EFIAPI.
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+//
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+#define EFIAPI
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+
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+// When compiling with Clang, we still use GNU as for the assembler, so we still
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+// need to define the GCC_ASM* macros.
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+#if defined(__GNUC__) || defined(__clang__)
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+ ///
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+ /// For GNU assembly code, .global or .globl can declare global symbols.
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+ /// Define this macro to unify the usage.
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+ ///
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+ #define ASM_GLOBAL .globl
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+
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+ #if !defined(__APPLE__)
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+ ///
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+ /// ARM EABI defines that the linker should not manipulate call relocations
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+ /// (do bl/blx conversion) unless the target symbol has function type.
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+ /// CodeSourcery 2010.09 started requiring the .type to function properly
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+ ///
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+ #define INTERWORK_FUNC(func__) .type ASM_PFX(func__), %function
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+
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+ #define GCC_ASM_EXPORT(func__) \
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+ .global _CONCATENATE (__USER_LABEL_PREFIX__, func__) ;\
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+ .type ASM_PFX(func__), %function
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+
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+ #define GCC_ASM_IMPORT(func__) \
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+ .extern _CONCATENATE (__USER_LABEL_PREFIX__, func__)
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+
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+ #else
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+ //
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+ // .type not supported by Apple Xcode tools
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+ //
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+ #define INTERWORK_FUNC(func__)
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+
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+ #define GCC_ASM_EXPORT(func__) \
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+ .globl _CONCATENATE (__USER_LABEL_PREFIX__, func__) \
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+
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+ #define GCC_ASM_IMPORT(name)
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+
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+ #endif
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+#endif
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+
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+/**
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+ Return the pointer to the first instruction of a function given a function pointer.
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+ On ARM CPU architectures, these two pointer values are the same,
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+ so the implementation of this macro is very simple.
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+
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+ @param FunctionPointer A pointer to a function.
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+
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+ @return The pointer to the first instruction of a function given a function pointer.
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+
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+**/
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+#define FUNCTION_ENTRY_POINT(FunctionPointer) (VOID *)(UINTN)(FunctionPointer)
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+
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+#ifndef __USER_LABEL_PREFIX__
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+#define __USER_LABEL_PREFIX__
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+#endif
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+
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+#endif
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+
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+
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