| /*++ | |
| Copyright (c) 2004 - 2012, Intel Corporation. All rights reserved.<BR> | |
| This program and the accompanying materials | |
| are licensed and made available under the terms and conditions of the BSD License | |
| which accompanies this distribution. The full text of the license may be found at | |
| http://opensource.org/licenses/bsd-license.php | |
| THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
| WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
| Module Name: | |
| EfiBind.h | |
| Abstract: | |
| Processor or Compiler specific defines and types for IA-32. | |
| We are using the ANSI C 2000 _t type definitions for basic types. | |
| This it technically a violation of the coding standard, but they | |
| are used to make EfiTypes.h portable. Code other than EfiTypes.h | |
| should never use any ANSI C 2000 _t integer types. | |
| --*/ | |
| #ifndef _EFI_BIND_H_ | |
| #define _EFI_BIND_H_ | |
| #define EFI_DRIVER_ENTRY_POINT(InitFunction) | |
| #define EFI_APPLICATION_ENTRY_POINT EFI_DRIVER_ENTRY_POINT | |
| // | |
| // Make sure we are useing the correct packing rules per EFI specification | |
| // | |
| #ifndef __GNUC__ | |
| #pragma pack() | |
| #endif | |
| // | |
| // Assume standard IA-32 alignment. | |
| // BugBug: Need to check portability of long long | |
| // | |
| typedef unsigned long long uint64_t; | |
| typedef long long int64_t; | |
| typedef unsigned int uint32_t; | |
| typedef int int32_t; | |
| typedef unsigned short uint16_t; | |
| typedef short int16_t; | |
| typedef unsigned char uint8_t; | |
| typedef signed char int8_t; | |
| // | |
| // Native integer size in stdint.h | |
| // | |
| typedef uint32_t uintn_t; | |
| typedef int32_t intn_t; | |
| // | |
| // Processor specific defines | |
| // | |
| #define EFI_MAX_BIT 0x80000000 | |
| #define MAX_2_BITS 0xC0000000 | |
| // | |
| // Maximum legal IA-32 address | |
| // | |
| #define EFI_MAX_ADDRESS 0xFFFFFFFF | |
| // | |
| // Bad pointer value to use in check builds. | |
| // if you see this value you are using uninitialized or free'ed data | |
| // | |
| #define EFI_BAD_POINTER 0xAFAFAFAF | |
| #define EFI_BAD_POINTER_AS_BYTE 0xAF | |
| #define EFI_DEADLOOP() { volatile UINTN __iii; __iii = 1; while (__iii); } | |
| // | |
| // Inject a break point in the code to assist debugging for NT Emulation Environment | |
| // For real hardware, just put in a halt loop. Don't do a while(1) because the | |
| // compiler will optimize away the rest of the function following, so that you run out in | |
| // the weeds if you skip over it with a debugger. | |
| // | |
| #define EFI_BREAKPOINT EFI_DEADLOOP() | |
| // | |
| // Memory Fence forces serialization, and is needed to support out of order | |
| // memory transactions. The Memory Fence is mainly used to make sure IO | |
| // transactions complete in a deterministic sequence, and to syncronize locks | |
| // an other MP code. Currently no memory fencing is required. | |
| // | |
| #define MEMORY_FENCE() | |
| // | |
| // Some compilers don't support the forward reference construct: | |
| // typedef struct XXXXX. The forward reference is required for | |
| // ANSI compatibility. | |
| // | |
| // The following macro provide a workaround for such cases. | |
| // | |
| #ifdef EFI_NO_INTERFACE_DECL | |
| #define EFI_FORWARD_DECLARATION(x) | |
| #else | |
| #define EFI_FORWARD_DECLARATION(x) typedef struct _##x x | |
| #endif | |
| // | |
| // Some C compilers optimize the calling conventions to increase performance. | |
| // _EFIAPI is used to make all public APIs follow the standard C calling | |
| // convention. | |
| // | |
| #define _EFIAPI | |
| // | |
| // For symbol name in GNU assembly code, an extra "_" is necessary | |
| // | |
| #if defined(__GNUC__) | |
| /// | |
| /// Private worker functions for ASM_PFX() | |
| /// | |
| #define _CONCATENATE(a, b) __CONCATENATE(a, b) | |
| #define __CONCATENATE(a, b) a ## b | |
| /// | |
| /// The __USER_LABEL_PREFIX__ macro predefined by GNUC represents the prefix | |
| /// on symbols in assembly language. | |
| /// | |
| #define ASM_PFX(name) _CONCATENATE (__USER_LABEL_PREFIX__, name) | |
| #endif | |
| #endif | |