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1/** @file\r
2 Processor or Compiler specific defines and types for ARM.\r
3\r
f7496d71 4 Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
f51461c8 5 Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
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6 This program and the accompanying materials\r
7 are licensed and made available under the terms and conditions of the BSD License\r
8 which accompanies this distribution. The full text of the license may be found at\r
9 http://opensource.org/licenses/bsd-license.php\r
f51461c8 10\r
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11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
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13\r
14**/\r
15\r
16#ifndef __PROCESSOR_BIND_H__\r
17#define __PROCESSOR_BIND_H__\r
18\r
19///\r
20/// Define the processor type so other code can make processor based choices\r
21///\r
22#define MDE_CPU_ARM\r
23\r
24//\r
25// Make sure we are using the correct packing rules per EFI specification\r
26//\r
27#ifndef __GNUC__\r
28#pragma pack()\r
29#endif\r
30\r
f7496d71 31#if _MSC_EXTENSIONS\r
f51461c8 32 //\r
f7496d71 33 // use Microsoft* C complier dependent integer width types\r
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34 //\r
35 typedef unsigned __int64 UINT64;\r
36 typedef __int64 INT64;\r
37 typedef unsigned __int32 UINT32;\r
38 typedef __int32 INT32;\r
39 typedef unsigned short UINT16;\r
40 typedef unsigned short CHAR16;\r
41 typedef short INT16;\r
42 typedef unsigned char BOOLEAN;\r
43 typedef unsigned char UINT8;\r
44 typedef char CHAR8;\r
45 typedef signed char INT8;\r
46#else\r
47 //\r
f7496d71 48 // Assume standard ARM alignment.\r
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49 //\r
50 typedef unsigned long long UINT64;\r
51 typedef long long INT64;\r
52 typedef unsigned int UINT32;\r
53 typedef int INT32;\r
54 typedef unsigned short UINT16;\r
55 typedef unsigned short CHAR16;\r
56 typedef short INT16;\r
57 typedef unsigned char BOOLEAN;\r
58 typedef unsigned char UINT8;\r
59 typedef char CHAR8;\r
60 typedef signed char INT8;\r
61\r
62 #define UINT8_MAX 0xff\r
63#endif\r
64\r
65///\r
66/// Unsigned value of native width. (4 bytes on supported 32-bit processor instructions,\r
67/// 8 bytes on supported 64-bit processor instructions)\r
68///\r
69typedef UINT32 UINTN;\r
70\r
71///\r
72/// Signed value of native width. (4 bytes on supported 32-bit processor instructions,\r
73/// 8 bytes on supported 64-bit processor instructions)\r
74///\r
75typedef INT32 INTN;\r
76\r
77//\r
78// Processor specific defines\r
79//\r
80\r
81///\r
82/// A value of native width with the highest bit set.\r
83///\r
84#define MAX_BIT 0x80000000\r
85\r
86///\r
87/// A value of native width with the two highest bits set.\r
88///\r
89#define MAX_2_BITS 0xC0000000\r
90\r
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91///\r
92/// The stack alignment required for ARM\r
93///\r
94#define CPU_STACK_ALIGNMENT sizeof(UINT64)\r
95\r
96//\r
97// Modifier to ensure that all protocol member functions and EFI intrinsics\r
98// use the correct C calling convention. All protocol member functions and\r
99// EFI intrinsics are required to modify their member functions with EFIAPI.\r
100//\r
f7496d71 101#define EFIAPI\r
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102\r
103#if defined(__GNUC__)\r
104 ///\r
105 /// For GNU assembly code, .global or .globl can declare global symbols.\r
106 /// Define this macro to unify the usage.\r
107 ///\r
108 #define ASM_GLOBAL .globl\r
109\r
110 #if !defined(__APPLE__)\r
111 ///\r
112 /// ARM EABI defines that the linker should not manipulate call relocations\r
113 /// (do bl/blx conversion) unless the target symbol has function type.\r
114 /// CodeSourcery 2010.09 started requiring the .type to function properly\r
115 ///\r
116 #define INTERWORK_FUNC(func__) .type ASM_PFX(func__), %function\r
117\r
118 #define GCC_ASM_EXPORT(func__) \\r
119 .global _CONCATENATE (__USER_LABEL_PREFIX__, func__) ;\\r
f7496d71 120 .type ASM_PFX(func__), %function\r
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121\r
122 #define GCC_ASM_IMPORT(func__) \\r
123 .extern _CONCATENATE (__USER_LABEL_PREFIX__, func__)\r
f7496d71 124\r
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125 #else\r
126 //\r
f7496d71 127 // .type not supported by Apple Xcode tools\r
f51461c8 128 //\r
f7496d71 129 #define INTERWORK_FUNC(func__)\r
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130\r
131 #define GCC_ASM_EXPORT(func__) \\r
132 .globl _CONCATENATE (__USER_LABEL_PREFIX__, func__) \\r
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133\r
134 #define GCC_ASM_IMPORT(name)\r
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135\r
136 #endif\r
137#endif\r
138\r
139/**\r
140 Return the pointer to the first instruction of a function given a function pointer.\r
f7496d71 141 On ARM CPU architectures, these two pointer values are the same,\r
f51461c8 142 so the implementation of this macro is very simple.\r
f7496d71 143\r
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144 @param FunctionPointer A pointer to a function.\r
145\r
146 @return The pointer to the first instruction of a function given a function pointer.\r
f7496d71 147\r
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148**/\r
149#define FUNCTION_ENTRY_POINT(FunctionPointer) (VOID *)(UINTN)(FunctionPointer)\r
150\r
151#endif\r
152\r
153\r