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gnu-efi/inc/x86_64/efibind.h
Callum Farmer ce1ec9d27b
Make CHAR8 use unsigned char 
* Means we don't have to switch the implementation of char to unsigned char
* Matches the underlying type of char8_t from C++20

Signed-off-by: Callum Farmer <gmbr3@opensuse.org>
2024-06-24 19:34:51 +01:00

397 lines
13 KiB
C
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/*++
Copyright (c) 1998 Intel Corporation
Module Name:
efefind.h
Abstract:
EFI to compile bindings
Revision History
--*/
#ifndef X86_64_EFI_BIND
#define X86_64_EFI_BIND
#ifndef __GNUC__
#pragma pack()
#endif
#if defined(_MSC_VER)
#define HAVE_USE_MS_ABI 1
#elif defined(GNU_EFI_USE_MS_ABI)
#if (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7)))||(defined(__clang__) && (__clang_major__ > 3 || (__clang_major__ == 3 && __clang_minor__ >= 2)))
#define HAVE_USE_MS_ABI 1
#else
#error Compiler is too old for GNU_EFI_USE_MS_ABI
#endif
#endif
//
// Basic int types of various widths
//
#if !defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L ) && !defined(__cplusplus)
// No ANSI C 1999/2000 stdint.h integer width declarations
#if defined(_MSC_EXTENSIONS)
// Use Microsoft C compiler integer width declarations
typedef unsigned __int64 uint64_t;
typedef __int64 int64_t;
typedef unsigned __int32 uint32_t;
typedef __int32 int32_t;
typedef unsigned short uint16_t;
typedef short int16_t;
typedef unsigned char uint8_t;
typedef char int8_t;
#elif defined(__GNUC__)
typedef int __attribute__((__mode__(__DI__))) int64_t;
typedef unsigned int __attribute__((__mode__(__DI__))) uint64_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;
#elif defined(UNIX_LP64)
/* Use LP64 programming model from C_FLAGS for 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 char int8_t;
#else
/* Assume P64 programming model from C_FLAGS for integer width declarations */
typedef unsigned long long uint64_t __attribute__((aligned (8)));
typedef long long int64_t __attribute__((aligned (8)));
typedef unsigned int uint32_t;
typedef int int32_t;
typedef unsigned short uint16_t;
typedef short int16_t;
typedef unsigned char uint8_t;
typedef char int8_t;
#endif
typedef uint64_t uintptr_t;
typedef int64_t intptr_t;
#else
#include <stdint.h>
#endif
//
// Basic EFI types of various widths
//
#include <stddef.h>
typedef uint16_t CHAR16;
#define WCHAR CHAR16
typedef uint64_t UINT64;
typedef int64_t INT64;
#ifndef _BASETSD_H_
typedef uint32_t UINT32;
typedef int32_t INT32;
#endif
typedef uint16_t UINT16;
typedef int16_t INT16;
typedef uint8_t UINT8;
typedef unsigned char CHAR8;
typedef int8_t INT8;
#undef VOID
typedef void VOID;
typedef int64_t INTN;
typedef uint64_t UINTN;
#ifdef EFI_NT_EMULATOR
#define POST_CODE(_Data)
#else
#ifdef EFI_DEBUG
#define POST_CODE(_Data) __asm mov eax,(_Data) __asm out 0x80,al
#else
#define POST_CODE(_Data)
#endif
#endif
#define EFIERR(a) (0x8000000000000000 | a)
#define EFI_ERROR_MASK 0x8000000000000000
#define EFIERR_OEM(a) (0xc000000000000000 | a)
#define BAD_POINTER 0xFBFBFBFBFBFBFBFB
#define MAX_ADDRESS 0xFFFFFFFFFFFFFFFF
#ifdef EFI_NT_EMULATOR
#define BREAKPOINT() __asm { int 3 }
#else
#define BREAKPOINT() while (TRUE); // Make it hang on Bios[Dbg]32
#endif
//
// Pointers must be aligned to these address to function
//
#define MIN_ALIGNMENT_SIZE 4
#define ALIGN_VARIABLE(Value ,Adjustment) \
(UINTN)Adjustment = 0; \
if((UINTN)Value % MIN_ALIGNMENT_SIZE) \
(UINTN)Adjustment = MIN_ALIGNMENT_SIZE - ((UINTN)Value % MIN_ALIGNMENT_SIZE); \
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))
//
// To export & import functions in the EFI emulator environment
//
#ifdef EFI_NT_EMULATOR
#define EXPORTAPI __declspec( dllexport )
#else
#define EXPORTAPI
#endif
//
// 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
#ifdef _MSC_EXTENSIONS
#define EFIAPI __cdecl // Force C calling convention for Microsoft C compiler
#elif defined(HAVE_USE_MS_ABI)
// Force amd64/ms calling conventions.
#define EFIAPI __attribute__((ms_abi))
#else
#define EFIAPI // Substitute expresion to force C calling convention
#endif
#endif
#define BOOTSERVICE
//#define RUNTIMESERVICE(proto,a) alloc_text("rtcode",a); proto a
//#define RUNTIMEFUNCTION(proto,a) alloc_text("rtcode",a); proto a
#define RUNTIMESERVICE
#define RUNTIMEFUNCTION
#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()
#ifdef EFI_NT_EMULATOR
//
// To help ensure proper coding of integrated drivers, they are
// compiled as DLLs. In NT they require a dll init entry pointer.
// The macro puts a stub entry point into the DLL so it will load.
//
#define EFI_DRIVER_ENTRY_POINT(InitFunction) \
UINTN \
__stdcall \
_DllMainCRTStartup ( \
UINTN Inst, \
UINTN reason_for_call, \
VOID *rserved \
) \
{ \
return 1; \
} \
\
int \
EXPORTAPI \
__cdecl \
InitializeDriver ( \
void *ImageHandle, \
void *SystemTable \
) \
{ \
return InitFunction(ImageHandle, SystemTable); \
}
#define LOAD_INTERNAL_DRIVER(_if, type, name, entry) \
(_if)->LoadInternal(type, name, NULL)
#else // EFI_NT_EMULATOR
//
// When build similiar to FW, then link everything together as
// one big module. For the MSVC toolchain, we simply tell the
// linker what our driver init function is using /ENTRY.
//
#if defined(_MSC_EXTENSIONS)
#define EFI_DRIVER_ENTRY_POINT(InitFunction) \
__pragma(comment(linker, "/ENTRY:" # InitFunction))
#else
#define EFI_DRIVER_ENTRY_POINT(InitFunction) \
UINTN \
InitializeDriver ( \
VOID *ImageHandle, \
VOID *SystemTable \
) \
{ \
return InitFunction(ImageHandle, \
SystemTable); \
} \
\
EFI_STATUS efi_main( \
EFI_HANDLE image, \
EFI_SYSTEM_TABLE *systab \
) __attribute__((weak, \
alias ("InitializeDriver")));
#endif
#define LOAD_INTERNAL_DRIVER(_if, type, name, entry) \
(_if)->LoadInternal(type, name, entry)
#endif // EFI_NT_EMULATOR
//
// Some compilers don't support the forward reference construct:
// typedef struct XXXXX
//
// The following macro provide a workaround for such cases.
//
#ifdef NO_INTERFACE_DECL
#define INTERFACE_DECL(x)
#else
#if defined(__GNUC__) || defined(_MSC_EXTENSIONS)
#define INTERFACE_DECL(x) struct x
#else
#define INTERFACE_DECL(x) typedef struct x
#endif
#endif
/* for x86_64, EFI_FUNCTION_WRAPPER must be defined */
#if defined(HAVE_USE_MS_ABI)
#define uefi_call_wrapper(func, va_num, ...) func(__VA_ARGS__)
#else
/*
Credits for macro-magic:
https://groups.google.com/forum/?fromgroups#!topic/comp.std.c/d-6Mj5Lko_s
http://efesx.com/2010/08/31/overloading-macros/
*/
#define __VA_NARG__(...) \
__VA_NARG_(_0, ## __VA_ARGS__, __RSEQ_N())
#define __VA_NARG_(...) \
__VA_ARG_N(__VA_ARGS__)
#define __VA_ARG_N( \
_0,_1,_2,_3,_4,_5,_6,_7,_8,_9,_10,N,...) N
#define __RSEQ_N() \
10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
#define __VA_ARG_NSUFFIX__(prefix,...) \
__VA_ARG_NSUFFIX_N(prefix, __VA_NARG__(__VA_ARGS__))
#define __VA_ARG_NSUFFIX_N(prefix,nargs) \
__VA_ARG_NSUFFIX_N_(prefix, nargs)
#define __VA_ARG_NSUFFIX_N_(prefix,nargs) \
prefix ## nargs
/* Prototypes of EFI cdecl -> stdcall trampolines */
UINT64 efi_call0(void *func);
UINT64 efi_call1(void *func, UINT64 arg1);
UINT64 efi_call2(void *func, UINT64 arg1, UINT64 arg2);
UINT64 efi_call3(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3);
UINT64 efi_call4(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3,
UINT64 arg4);
UINT64 efi_call5(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3,
UINT64 arg4, UINT64 arg5);
UINT64 efi_call6(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3,
UINT64 arg4, UINT64 arg5, UINT64 arg6);
UINT64 efi_call7(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3,
UINT64 arg4, UINT64 arg5, UINT64 arg6, UINT64 arg7);
UINT64 efi_call8(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3,
UINT64 arg4, UINT64 arg5, UINT64 arg6, UINT64 arg7,
UINT64 arg8);
UINT64 efi_call9(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3,
UINT64 arg4, UINT64 arg5, UINT64 arg6, UINT64 arg7,
UINT64 arg8, UINT64 arg9);
UINT64 efi_call10(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3,
UINT64 arg4, UINT64 arg5, UINT64 arg6, UINT64 arg7,
UINT64 arg8, UINT64 arg9, UINT64 arg10);
/* Front-ends to efi_callX to avoid compiler warnings */
#define _cast64_efi_call0(f) \
efi_call0(f)
#define _cast64_efi_call1(f,a1) \
efi_call1(f, (UINT64)(a1))
#define _cast64_efi_call2(f,a1,a2) \
efi_call2(f, (UINT64)(a1), (UINT64)(a2))
#define _cast64_efi_call3(f,a1,a2,a3) \
efi_call3(f, (UINT64)(a1), (UINT64)(a2), (UINT64)(a3))
#define _cast64_efi_call4(f,a1,a2,a3,a4) \
efi_call4(f, (UINT64)(a1), (UINT64)(a2), (UINT64)(a3), (UINT64)(a4))
#define _cast64_efi_call5(f,a1,a2,a3,a4,a5) \
efi_call5(f, (UINT64)(a1), (UINT64)(a2), (UINT64)(a3), (UINT64)(a4), \
(UINT64)(a5))
#define _cast64_efi_call6(f,a1,a2,a3,a4,a5,a6) \
efi_call6(f, (UINT64)(a1), (UINT64)(a2), (UINT64)(a3), (UINT64)(a4), \
(UINT64)(a5), (UINT64)(a6))
#define _cast64_efi_call7(f,a1,a2,a3,a4,a5,a6,a7) \
efi_call7(f, (UINT64)(a1), (UINT64)(a2), (UINT64)(a3), (UINT64)(a4), \
(UINT64)(a5), (UINT64)(a6), (UINT64)(a7))
#define _cast64_efi_call8(f,a1,a2,a3,a4,a5,a6,a7,a8) \
efi_call8(f, (UINT64)(a1), (UINT64)(a2), (UINT64)(a3), (UINT64)(a4), \
(UINT64)(a5), (UINT64)(a6), (UINT64)(a7), (UINT64)(a8))
#define _cast64_efi_call9(f,a1,a2,a3,a4,a5,a6,a7,a8,a9) \
efi_call9(f, (UINT64)(a1), (UINT64)(a2), (UINT64)(a3), (UINT64)(a4), \
(UINT64)(a5), (UINT64)(a6), (UINT64)(a7), (UINT64)(a8), \
(UINT64)(a9))
#define _cast64_efi_call10(f,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10) \
efi_call10(f, (UINT64)(a1), (UINT64)(a2), (UINT64)(a3), (UINT64)(a4), \
(UINT64)(a5), (UINT64)(a6), (UINT64)(a7), (UINT64)(a8), \
(UINT64)(a9), (UINT64)(a10))
/* main wrapper (va_num ignored) */
#define uefi_call_wrapper(func,va_num,...) \
__VA_ARG_NSUFFIX__(_cast64_efi_call, __VA_ARGS__) (func , ##__VA_ARGS__)
#endif
#if defined(HAVE_USE_MS_ABI) && !defined(_MSC_EXTENSIONS)
#define EFI_FUNCTION __attribute__((ms_abi))
#else
#define EFI_FUNCTION
#endif
#ifdef _MSC_EXTENSIONS
#pragma warning ( disable : 4731 ) // Suppress warnings about modification of EBP
#endif
#endif
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