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/* $Id: platform.h $ */
/** @file
* Platform Header for all VirtualBox targets.
*/
/*
* Copyright (C) 2022 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#ifndef VBOX_INCLUDED_SRC_vbox_platform_h
#define VBOX_INCLUDED_SRC_vbox_platform_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
/* For RT_LITTLE_ENDIAN, RT_ARCH_XXX and more: */
#include <iprt/cdefs.h>
/* Build config: */
#define SOFTFLOAT_FAST_INT64 /**< We use functions guarded by this, so must be defined regardless of truthiness. */
#define SOFTFLOAT_ROUND_ODD /** @todo Skip this? */
/* IPRT should detect endianness correctly: */
#ifdef RT_LITTLE_ENDIAN
# define LITTLEENDIAN 1
#endif
/* Compiler/host configuration bits: */
#define SOFTFLOAT_FAST_DIV32TO16
#if ARCH_BITS > 32 || defined(RT_ARCH_X86)
# define SOFTFLOAT_FAST_DIV64TO32
#endif
/* See DECLINLINE for guidance: */
#ifdef __GNUC__
# define INLINE static __inline__
#elif defined(__cplusplus)
# define INLINE static inline
#elif defined(_MSC_VER)
# define INLINE static _inline
#else
# error "Port me!"
#endif
/* Generic IPRT asm.h based optimizations: */
#if !defined(__GNUC__)
# include <iprt/asm.h>
# define softfloat_countLeadingZeros16 softfloat_iprt_countLeadingZeros16
DECLINLINE(uint_fast8_t) softfloat_iprt_countLeadingZeros16(uint16_t uVal)
{
return 16 - ASMBitLastSetU16(uVal);
}
# define softfloat_countLeadingZeros32 softfloat_iprt_countLeadingZeros32
DECLINLINE(uint_fast8_t) softfloat_iprt_countLeadingZeros32(uint32_t uVal)
{
return 32 - ASMBitLastSetU32(uVal);
}
# define softfloat_countLeadingZeros64 softfloat_iprt_countLeadingZeros64
DECLINLINE(uint_fast8_t) softfloat_iprt_countLeadingZeros64(uint64_t uVal)
{
return 64 - ASMBitLastSetU64(uVal);
}
#endif
/* Include GCC optimizations: */
#ifdef __GNUC__
# ifndef softfloat_countLeadingZeros16
# define SOFTFLOAT_BUILTIN_CLZ 1
# endif
# if ARCH_BITS > 32 && defined(__SIZEOF_INT128__)
# define SOFTFLOAT_INTRINSIC_INT128 1
# endif
# include "opts-GCC.h"
#endif
/* We've eliminated the global variables and need no TLS variable tricks. */
#ifndef THREAD_LOCAL
# if 1
# define THREAD_LOCAL
# else
# ifdef _MSC_VER
# define THREAD_LOCAL __declspec(thread)
# else
# define THREAD_LOCAL __thread
# endif
# endif
#endif
#endif /* !VBOX_INCLUDED_SRC_vbox_platform_h */
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