/*++ | |
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 | |