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247 lines
6.4 KiB
247 lines
6.4 KiB
4 years ago
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/** @file
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Processor or Compiler specific defines and types for ARM.
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Copyright (c) 2006 - 2018, 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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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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#ifndef __PROCESSOR_BIND_H__
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#define __PROCESSOR_BIND_H__
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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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// Make sure we are using the correct packing rules per EFI specification
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//
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#if !defined(__GNUC__) && !defined(__ASSEMBLER__)
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#pragma pack()
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#endif
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#if defined(_MSC_EXTENSIONS)
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//
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// Disable some level 4 compilation warnings (same as IA32 and X64)
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//
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//
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// Disabling bitfield type checking warnings.
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//
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#pragma warning ( disable : 4214 )
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//
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// Disabling the unreferenced formal parameter warnings.
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//
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#pragma warning ( disable : 4100 )
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//
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// Disable slightly different base types warning as CHAR8 * can not be set
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// to a constant string.
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//
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#pragma warning ( disable : 4057 )
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//
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// ASSERT(FALSE) or while (TRUE) are legal constructs so suppress this warning
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//
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#pragma warning ( disable : 4127 )
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//
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// This warning is caused by functions defined but not used. For precompiled header only.
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//
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#pragma warning ( disable : 4505 )
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//
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// This warning is caused by empty (after preprocessing) source file. For precompiled header only.
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//
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#pragma warning ( disable : 4206 )
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//
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// Disable 'potentially uninitialized local variable X used' warnings
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//
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#pragma warning ( disable : 4701 )
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//
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// Disable 'potentially uninitialized local pointer variable X used' warnings
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//
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#pragma warning ( disable : 4703 )
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#endif
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//
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// RVCT and MSFT don't support the __builtin_unreachable() macro
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//
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#if defined(__ARMCC_VERSION) || defined(_MSC_EXTENSIONS)
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#define UNREACHABLE()
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#endif
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#if defined(_MSC_EXTENSIONS)
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//
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// use Microsoft* C compiler 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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/// 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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/// 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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// Processor specific defines
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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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/// 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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/// Maximum legal ARM address
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///
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#define MAX_ADDRESS 0xFFFFFFFF
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///
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/// Maximum usable address at boot time
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///
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#define MAX_ALLOC_ADDRESS MAX_ADDRESS
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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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/// Minimum legal ARM INTN value.
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///
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#define MIN_INTN (((INTN)-2147483647) - 1)
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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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/// Page allocation granularity for ARM
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///
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#define DEFAULT_PAGE_ALLOCATION_GRANULARITY (0x1000)
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#define RUNTIME_PAGE_ALLOCATION_GRANULARITY (0x1000)
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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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// 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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#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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#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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#define GCC_ASM_IMPORT(func__) \
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.extern _CONCATENATE (__USER_LABEL_PREFIX__, func__)
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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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#define GCC_ASM_EXPORT(func__) \
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.globl _CONCATENATE (__USER_LABEL_PREFIX__, func__) \
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#define GCC_ASM_IMPORT(name)
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#endif
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#elif defined(_MSC_EXTENSIONS)
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//
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// PRESERVE8 is not supported by the MSFT assembler.
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//
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#define PRESERVE8
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#endif
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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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@param FunctionPointer A pointer to a function.
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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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#define FUNCTION_ENTRY_POINT(FunctionPointer) (VOID *)(UINTN)(FunctionPointer)
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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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#endif
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