blob: ef7148d5312dfa1c107cecbdc2c7655a6c087663 [file] [log] [blame]
* Copright (C) 2014 - 2015 Linaro Ltd.
* Author: Ard Biesheuvel <>
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice and this list of conditions, without modification.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License as published by the Free Software Foundation;
* either version 2 of the License, or (at your option) any later version.
#if !defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L )
// ANSI C 1999/2000 stdint.h integer width declarations
typedef unsigned long uint64_t;
typedef 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; // unqualified 'char' is unsigned on ARM
#include <stdint.h>
// Basic EFI types of various widths
#ifndef __WCHAR_TYPE__
# define __WCHAR_TYPE__ short
typedef uint64_t UINT64;
typedef int64_t INT64;
typedef uint32_t UINT32;
typedef int32_t INT32;
typedef uint16_t UINT16;
typedef int16_t INT16;
typedef uint8_t UINT8;
typedef int8_t INT8;
typedef __WCHAR_TYPE__ WCHAR;
#undef VOID
#define VOID void
typedef int64_t INTN;
typedef uint64_t UINTN;
#define EFIERR(a) (0x8000000000000000 | a)
#define EFI_ERROR_MASK 0x8000000000000000
#define EFIERR_OEM(a) (0xc000000000000000 | a)
#define BREAKPOINT() while (TRUE); // Make it hang on Bios[Dbg]32
// Pointers must be aligned to these address to function
#define ALIGN_VARIABLE(Value ,Adjustment) \
(UINTN)Adjustment = 0; \
Value = (UINTN)Value + (UINTN)Adjustment
// Define macros to build data structure signatures from characters.
#define EFI_SIGNATURE_16(A,B) ((A) | (B<<8))
#define EFI_SIGNATURE_32(A,B,C,D) (EFI_SIGNATURE_16(A,B) | (EFI_SIGNATURE_16(C,D) << 16))
#define EFI_SIGNATURE_64(A,B,C,D,E,F,G,H) (EFI_SIGNATURE_32(A,B,C,D) | ((UINT64)(EFI_SIGNATURE_32(E,F,G,H)) << 32))
// EFIAPI - prototype calling convention for EFI function pointers
// BOOTSERVICE - prototype for implementation of a boot service interface
// RUNTIMESERVICE - prototype for implementation of a runtime service interface
// RUNTIMEFUNCTION - prototype for implementation of a runtime function that is not a service
// RUNTIME_CODE - pragma macro for declaring runtime code
#ifndef EFIAPI // Forces EFI calling conventions reguardless of compiler options
#define EFIAPI // Substitute expresion to force C calling convention
#define RUNTIME_CODE(a) alloc_text("rtcode", a)
#define BEGIN_RUNTIME_DATA() data_seg("rtdata")
#define END_RUNTIME_DATA() data_seg("")
#define VOLATILE volatile
#define MEMORY_FENCE __sync_synchronize
// When build similiar to FW, then link everything together as
// one big module.
#define EFI_DRIVER_ENTRY_POINT(InitFunction) \
InitializeDriver ( \
VOID *ImageHandle, \
VOID *SystemTable \
) \
{ \
return InitFunction(ImageHandle, \
SystemTable); \
} \
EFI_STATUS efi_main( \
EFI_HANDLE image, \
) __attribute__((weak, \
alias ("InitializeDriver")));
#define LOAD_INTERNAL_DRIVER(_if, type, name, entry) \
(_if)->LoadInternal(type, name, entry)
// Some compilers don't support the forward reference construct:
// typedef struct XXXXX
// The following macro provide a workaround for such cases.
#define INTERFACE_DECL(x) struct x
#define uefi_call_wrapper(func, va_num, ...) func(__VA_ARGS__)