mirror of https://github.com/acidanthera/audk.git
143 lines
4.1 KiB
C
143 lines
4.1 KiB
C
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/*++
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Copyright (c) 2004 - 2008, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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EfiBind.h
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Abstract:
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Processor or Compiler specific defines and types for IA-32.
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We are using the ANSI C 2000 _t type definitions for basic types.
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This it technically a violation of the coding standard, but they
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are used to make EfiTypes.h portable. Code other than EfiTypes.h
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should never use any ANSI C 2000 _t integer types.
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--*/
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#ifndef _EFI_BIND_H_
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#define _EFI_BIND_H_
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#define EFI_DRIVER_ENTRY_POINT(InitFunction)
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#define EFI_APPLICATION_ENTRY_POINT EFI_DRIVER_ENTRY_POINT
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//
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// Make sure we are useing the correct packing rules per EFI specification
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//
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#ifndef __GNUC__
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#pragma pack()
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#endif
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//
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// Assume standard IA-32 alignment.
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// BugBug: Need to check portability of long long
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//
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typedef unsigned long long uint64_t;
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typedef long long int64_t;
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typedef unsigned int uint32_t;
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typedef int int32_t;
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typedef unsigned short uint16_t;
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typedef short int16_t;
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typedef unsigned char uint8_t;
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typedef char int8_t;
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//
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// Native integer size in stdint.h
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//
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typedef uint32_t uintn_t;
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typedef int32_t intn_t;
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//
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// Processor specific defines
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//
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#define EFI_MAX_BIT 0x80000000
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#define MAX_2_BITS 0xC0000000
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//
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// Maximum legal IA-32 address
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//
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#define EFI_MAX_ADDRESS 0xFFFFFFFF
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//
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// Bad pointer value to use in check builds.
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// if you see this value you are using uninitialized or free'ed data
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//
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#define EFI_BAD_POINTER 0xAFAFAFAF
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#define EFI_BAD_POINTER_AS_BYTE 0xAF
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#define EFI_DEADLOOP() { volatile UINTN __iii; __iii = 1; while (__iii); }
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//
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// Inject a break point in the code to assist debugging for NT Emulation Environment
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// For real hardware, just put in a halt loop. Don't do a while(1) because the
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// compiler will optimize away the rest of the function following, so that you run out in
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// the weeds if you skip over it with a debugger.
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//
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#define EFI_BREAKPOINT EFI_DEADLOOP()
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//
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// Memory Fence forces serialization, and is needed to support out of order
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// memory transactions. The Memory Fence is mainly used to make sure IO
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// transactions complete in a deterministic sequence, and to syncronize locks
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// an other MP code. Currently no memory fencing is required.
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//
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#define MEMORY_FENCE()
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//
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// Some compilers don't support the forward reference construct:
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// typedef struct XXXXX. The forward reference is required for
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// ANSI compatibility.
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//
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// The following macro provide a workaround for such cases.
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//
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#ifdef EFI_NO_INTERFACE_DECL
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#define EFI_FORWARD_DECLARATION(x)
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#else
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#define EFI_FORWARD_DECLARATION(x) typedef struct _##x x
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#endif
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//
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// Some C compilers optimize the calling conventions to increase performance.
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// _EFIAPI is used to make all public APIs follow the standard C calling
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// convention.
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//
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#define _EFIAPI
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//
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// For symbol name in GNU assembly code, an extra "_" is necessary
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//
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#if defined(__GNUC__)
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///
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/// Private worker functions for ASM_PFX()
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///
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#define _CONCATENATE(a, b) __CONCATENATE(a, b)
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#define __CONCATENATE(a, b) a ## b
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///
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/// The __USER_LABEL_PREFIX__ macro predefined by GNUC represents the prefix
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/// on symbols in assembly language.
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///
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#define ASM_PFX(name) _CONCATENATE (__USER_LABEL_PREFIX__, name)
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#endif
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#endif
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