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git.proxmox.com Git - mirror_edk2.git/blob - MdePkg/Include/Arm/ProcessorBind.h
2 Processor or Compiler specific defines and types for ARM.
4 Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
5 Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
6 This program and the accompanying materials
7 are licensed and made available under the terms and conditions of the BSD License
8 which accompanies this distribution. The full text of the license may be found at
9 http://opensource.org/licenses/bsd-license.php
11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
16 #ifndef __PROCESSOR_BIND_H__
17 #define __PROCESSOR_BIND_H__
20 /// Define the processor type so other code can make processor based choices
25 // Make sure we are using the correct packing rules per EFI specification
32 // RVCT does not support the __builtin_unreachable() macro
34 #ifdef __ARMCC_VERSION
40 // use Microsoft* C complier dependent integer width types
42 typedef unsigned __int64 UINT64
;
43 typedef __int64 INT64
;
44 typedef unsigned __int32 UINT32
;
45 typedef __int32 INT32
;
46 typedef unsigned short UINT16
;
47 typedef unsigned short CHAR16
;
49 typedef unsigned char BOOLEAN
;
50 typedef unsigned char UINT8
;
52 typedef signed char INT8
;
55 // Assume standard ARM alignment.
56 // Need to check portability of long long
58 typedef unsigned long long UINT64
;
59 typedef long long INT64
;
60 typedef unsigned int UINT32
;
62 typedef unsigned short UINT16
;
63 typedef unsigned short CHAR16
;
65 typedef unsigned char BOOLEAN
;
66 typedef unsigned char UINT8
;
68 typedef signed char INT8
;
72 /// Unsigned value of native width. (4 bytes on supported 32-bit processor instructions,
73 /// 8 bytes on supported 64-bit processor instructions)
78 /// Signed value of native width. (4 bytes on supported 32-bit processor instructions,
79 /// 8 bytes on supported 64-bit processor instructions)
84 // Processor specific defines
88 /// A value of native width with the highest bit set.
90 #define MAX_BIT 0x80000000
93 /// A value of native width with the two highest bits set.
95 #define MAX_2_BITS 0xC0000000
98 /// Maximum legal ARM address
100 #define MAX_ADDRESS 0xFFFFFFFF
103 /// Maximum legal ARM INTN and UINTN values.
105 #define MAX_INTN ((INTN)0x7FFFFFFF)
106 #define MAX_UINTN ((UINTN)0xFFFFFFFF)
109 /// The stack alignment required for ARM
111 #define CPU_STACK_ALIGNMENT sizeof(UINT64)
114 // Modifier to ensure that all protocol member functions and EFI intrinsics
115 // use the correct C calling convention. All protocol member functions and
116 // EFI intrinsics are required to modify their member functions with EFIAPI.
120 // When compiling with Clang, we still use GNU as for the assembler, so we still
121 // need to define the GCC_ASM* macros.
122 #if defined(__GNUC__) || defined(__clang__)
124 /// For GNU assembly code, .global or .globl can declare global symbols.
125 /// Define this macro to unify the usage.
127 #define ASM_GLOBAL .globl
129 #if !defined(__APPLE__)
131 /// ARM EABI defines that the linker should not manipulate call relocations
132 /// (do bl/blx conversion) unless the target symbol has function type.
133 /// CodeSourcery 2010.09 started requiring the .type to function properly
135 #define INTERWORK_FUNC(func__) .type ASM_PFX(func__), %function
137 #define GCC_ASM_EXPORT(func__) \
138 .global _CONCATENATE (__USER_LABEL_PREFIX__, func__) ;\
139 .type ASM_PFX(func__), %function
141 #define GCC_ASM_IMPORT(func__) \
142 .extern _CONCATENATE (__USER_LABEL_PREFIX__, func__)
146 // .type not supported by Apple Xcode tools
148 #define INTERWORK_FUNC(func__)
150 #define GCC_ASM_EXPORT(func__) \
151 .globl _CONCATENATE (__USER_LABEL_PREFIX__, func__) \
153 #define GCC_ASM_IMPORT(name)
159 Return the pointer to the first instruction of a function given a function pointer.
160 On ARM CPU architectures, these two pointer values are the same,
161 so the implementation of this macro is very simple.
163 @param FunctionPointer A pointer to a function.
165 @return The pointer to the first instruction of a function given a function pointer.
168 #define FUNCTION_ENTRY_POINT(FunctionPointer) (VOID *)(UINTN)(FunctionPointer)
170 #ifndef __USER_LABEL_PREFIX__
171 #define __USER_LABEL_PREFIX__