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1 | /** @file |
2 | Processor or Compiler specific defines and types for ARM. | |
3 | ||
4 | Copyright (c) 2006 - 2012, 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 | |
10 | ||
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. | |
13 | ||
14 | **/ | |
15 | ||
16 | #ifndef __PROCESSOR_BIND_H__ | |
17 | #define __PROCESSOR_BIND_H__ | |
18 | ||
19 | /// | |
20 | /// Define the processor type so other code can make processor based choices | |
21 | /// | |
22 | #define MDE_CPU_ARM | |
23 | ||
24 | // | |
25 | // Make sure we are using the correct packing rules per EFI specification | |
26 | // | |
27 | #ifndef __GNUC__ | |
28 | #pragma pack() | |
29 | #endif | |
30 | ||
31 | #if _MSC_EXTENSIONS | |
32 | // | |
33 | // use Microsoft* C complier dependent integer width types | |
34 | // | |
35 | typedef unsigned __int64 UINT64; | |
36 | typedef __int64 INT64; | |
37 | typedef unsigned __int32 UINT32; | |
38 | typedef __int32 INT32; | |
39 | typedef unsigned short UINT16; | |
40 | typedef unsigned short CHAR16; | |
41 | typedef short INT16; | |
42 | typedef unsigned char BOOLEAN; | |
43 | typedef unsigned char UINT8; | |
44 | typedef char CHAR8; | |
45 | typedef signed char INT8; | |
46 | #else | |
47 | // | |
48 | // Assume standard ARM alignment. | |
49 | // | |
50 | typedef unsigned long long UINT64; | |
51 | typedef long long INT64; | |
52 | typedef unsigned int UINT32; | |
53 | typedef int INT32; | |
54 | typedef unsigned short UINT16; | |
55 | typedef unsigned short CHAR16; | |
56 | typedef short INT16; | |
57 | typedef unsigned char BOOLEAN; | |
58 | typedef unsigned char UINT8; | |
59 | typedef char CHAR8; | |
60 | typedef signed char INT8; | |
61 | ||
62 | #define UINT8_MAX 0xff | |
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 | ||
115 | #if !defined(__APPLE__) | |
116 | /// | |
117 | /// ARM EABI defines that the linker should not manipulate call relocations | |
118 | /// (do bl/blx conversion) unless the target symbol has function type. | |
119 | /// CodeSourcery 2010.09 started requiring the .type to function properly | |
120 | /// | |
121 | #define INTERWORK_FUNC(func__) .type ASM_PFX(func__), %function | |
122 | ||
123 | #define GCC_ASM_EXPORT(func__) \ | |
124 | .global _CONCATENATE (__USER_LABEL_PREFIX__, func__) ;\ | |
125 | .type ASM_PFX(func__), %function | |
126 | ||
127 | #define GCC_ASM_IMPORT(func__) \ | |
128 | .extern _CONCATENATE (__USER_LABEL_PREFIX__, func__) | |
129 | ||
130 | #else | |
131 | // | |
132 | // .type not supported by Apple Xcode tools | |
133 | // | |
134 | #define INTERWORK_FUNC(func__) | |
135 | ||
136 | #define GCC_ASM_EXPORT(func__) \ | |
137 | .globl _CONCATENATE (__USER_LABEL_PREFIX__, func__) \ | |
138 | ||
139 | #define GCC_ASM_IMPORT(name) | |
140 | ||
141 | #endif | |
142 | #endif | |
143 | ||
144 | /** | |
145 | Return the pointer to the first instruction of a function given a function pointer. | |
146 | On ARM CPU architectures, these two pointer values are the same, | |
147 | so the implementation of this macro is very simple. | |
148 | ||
149 | @param FunctionPointer A pointer to a function. | |
150 | ||
151 | @return The pointer to the first instruction of a function given a function pointer. | |
152 | ||
153 | **/ | |
154 | #define FUNCTION_ENTRY_POINT(FunctionPointer) (VOID *)(UINTN)(FunctionPointer) | |
155 | ||
156 | #endif | |
157 | ||
158 |