1 /*++ 2 3 Copyright (c) 2004 - 2012, Intel Corporation. All rights reserved.<BR> 4 This program and the accompanying materials 5 are licensed and made available under the terms and conditions of the BSD License 6 which accompanies this distribution. The full text of the license may be found at 7 http://opensource.org/licenses/bsd-license.php 8 9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 11 12 Module Name: 13 14 EfiBind.h 15 16 Abstract: 17 18 Processor or Compiler specific defines and types for IA-32. 19 We are using the ANSI C 2000 _t type definitions for basic types. 20 This it technically a violation of the coding standard, but they 21 are used to make EfiTypes.h portable. Code other than EfiTypes.h 22 should never use any ANSI C 2000 _t integer types. 23 24 --*/ 25 26 #ifndef _EFI_BIND_H_ 27 #define _EFI_BIND_H_ 28 29 30 #define EFI_DRIVER_ENTRY_POINT(InitFunction) 31 #define EFI_APPLICATION_ENTRY_POINT EFI_DRIVER_ENTRY_POINT 32 33 34 // 35 // Make sure we are useing the correct packing rules per EFI specification 36 // 37 #ifndef __GNUC__ 38 #pragma pack() 39 #endif 40 41 42 // 43 // Assume standard IA-32 alignment. 44 // BugBug: Need to check portability of long long 45 // 46 typedef unsigned long long uint64_t; 47 typedef long long int64_t; 48 typedef unsigned int uint32_t; 49 typedef int int32_t; 50 typedef unsigned short uint16_t; 51 typedef short int16_t; 52 typedef unsigned char uint8_t; 53 typedef signed char int8_t; 54 55 // 56 // Native integer size in stdint.h 57 // 58 typedef uint32_t uintn_t; 59 typedef int32_t intn_t; 60 61 // 62 // Processor specific defines 63 // 64 #define EFI_MAX_BIT 0x80000000 65 #define MAX_2_BITS 0xC0000000 66 67 // 68 // Maximum legal IA-32 address 69 // 70 #define EFI_MAX_ADDRESS 0xFFFFFFFF 71 72 // 73 // Bad pointer value to use in check builds. 74 // if you see this value you are using uninitialized or free'ed data 75 // 76 #define EFI_BAD_POINTER 0xAFAFAFAF 77 #define EFI_BAD_POINTER_AS_BYTE 0xAF 78 79 #define EFI_DEADLOOP() { volatile UINTN __iii; __iii = 1; while (__iii); } 80 81 // 82 // Inject a break point in the code to assist debugging for NT Emulation Environment 83 // For real hardware, just put in a halt loop. Don't do a while(1) because the 84 // compiler will optimize away the rest of the function following, so that you run out in 85 // the weeds if you skip over it with a debugger. 86 // 87 #define EFI_BREAKPOINT EFI_DEADLOOP() 88 89 90 // 91 // Memory Fence forces serialization, and is needed to support out of order 92 // memory transactions. The Memory Fence is mainly used to make sure IO 93 // transactions complete in a deterministic sequence, and to syncronize locks 94 // an other MP code. Currently no memory fencing is required. 95 // 96 #define MEMORY_FENCE() 97 98 // 99 // Some compilers don't support the forward reference construct: 100 // typedef struct XXXXX. The forward reference is required for 101 // ANSI compatibility. 102 // 103 // The following macro provide a workaround for such cases. 104 // 105 106 107 #ifdef EFI_NO_INTERFACE_DECL 108 #define EFI_FORWARD_DECLARATION(x) 109 #else 110 #define EFI_FORWARD_DECLARATION(x) typedef struct _##x x 111 #endif 112 113 114 // 115 // Some C compilers optimize the calling conventions to increase performance. 116 // _EFIAPI is used to make all public APIs follow the standard C calling 117 // convention. 118 // 119 #define _EFIAPI 120 121 122 123 // 124 // For symbol name in GNU assembly code, an extra "_" is necessary 125 // 126 #if defined(__GNUC__) 127 /// 128 /// Private worker functions for ASM_PFX() 129 /// 130 #define _CONCATENATE(a, b) __CONCATENATE(a, b) 131 #define __CONCATENATE(a, b) a ## b 132 133 /// 134 /// The __USER_LABEL_PREFIX__ macro predefined by GNUC represents the prefix 135 /// on symbols in assembly language. 136 /// 137 #define ASM_PFX(name) _CONCATENATE (__USER_LABEL_PREFIX__, name) 138 139 #endif 140 141 #endif 142 143
