mirror of
https://github.com/gnss-sdr/gnss-sdr
synced 2024-06-17 18:49:57 +00:00
173 lines
4.7 KiB
C
173 lines
4.7 KiB
C
/*!
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* \file volk_gnsssdr_common.h
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* \brief Cross-platform attribute macros
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* \author Andres Cecilia, 2014. a.cecilia.luque(at)gmail.com
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*
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* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
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* This file is part of GNSS-SDR.
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*
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* Copyright (C) 2010-2019 (see AUTHORS file for a list of contributors)
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#ifndef INCLUDED_LIBVOLK_GNSSSDR_COMMON_H
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#define INCLUDED_LIBVOLK_GNSSSDR_COMMON_H
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//
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// Cross-platform attribute macros not included in VOLK
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//
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#if _MSC_VER
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#define __VOLK_GNSSSDR_PREFETCH(addr)
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#define __VOLK_GNSSSDR_PREFETCH_LOCALITY(addr, rw, locality)
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#elif defined(__clang__)
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#define __VOLK_GNSSSDR_PREFETCH(addr) __builtin_prefetch(addr)
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#define __VOLK_GNSSSDR_PREFETCH_LOCALITY(addr, rw, locality) __builtin_prefetch(addr, rw, locality)
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#elif defined(__GNUC__)
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#define __VOLK_GNSSSDR_PREFETCH(addr) __builtin_prefetch(addr)
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#define __VOLK_GNSSSDR_PREFETCH_LOCALITY(addr, rw, locality) __builtin_prefetch(addr, rw, locality)
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#else
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#define __VOLK_GNSSSDR_PREFETCH(addr)
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#define __VOLK_GNSSSDR_PREFETCH_LOCALITY(addr, rw, locality)
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#endif
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#ifndef INCLUDED_LIBVOLK_COMMON_H
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#define INCLUDED_LIBVOLK_COMMON_H
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//
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// Cross-platform attribute macros
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//
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#if _MSC_VER
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#define __VOLK_ATTR_ALIGNED(x) __declspec(align(x))
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#define __VOLK_ATTR_UNUSED
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#define __VOLK_ATTR_INLINE __forceinline
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#define __VOLK_ATTR_DEPRECATED __declspec(deprecated)
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#define __VOLK_ATTR_EXPORT __declspec(dllexport)
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#define __VOLK_ATTR_IMPORT __declspec(dllimport)
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#define __VOLK_PREFETCH(addr)
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#define __VOLK_ASM __asm
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#define __VOLK_VOLATILE
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#elif defined(__clang__)
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// AppleClang also defines __GNUC__, so do this check first. These
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// will probably be the same as for __GNUC__, but let's keep them
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// separate just to be safe.
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#define __VOLK_ATTR_ALIGNED(x) __attribute__((aligned(x)))
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#define __VOLK_ATTR_UNUSED __attribute__((unused))
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#define __VOLK_ATTR_INLINE __attribute__((always_inline))
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#define __VOLK_ATTR_DEPRECATED __attribute__((deprecated))
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#define __VOLK_ASM __asm__
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#define __VOLK_VOLATILE __volatile__
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#define __VOLK_ATTR_EXPORT __attribute__((visibility("default")))
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#define __VOLK_ATTR_IMPORT __attribute__((visibility("default")))
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#define __VOLK_PREFETCH(addr) __builtin_prefetch(addr)
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#elif defined(__GNUC__)
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#define __VOLK_ATTR_ALIGNED(x) __attribute__((aligned(x)))
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#define __VOLK_ATTR_UNUSED __attribute__((unused))
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#define __VOLK_ATTR_INLINE __attribute__((always_inline))
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#define __VOLK_ATTR_DEPRECATED __attribute__((deprecated))
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#define __VOLK_ASM __asm__
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#define __VOLK_VOLATILE __volatile__
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#if __GNUC__ >= 4
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#define __VOLK_ATTR_EXPORT __attribute__((visibility("default")))
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#define __VOLK_ATTR_IMPORT __attribute__((visibility("default")))
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#else
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#define __VOLK_ATTR_EXPORT
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#define __VOLK_ATTR_IMPORT
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#endif
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#define __VOLK_PREFETCH(addr) __builtin_prefetch(addr)
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#else
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#warning "Unknown compiler. Using default VOLK macros, which may or not work."
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#define __VOLK_ATTR_ALIGNED(x)
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#define __VOLK_ATTR_UNUSED
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#define __VOLK_ATTR_INLINE
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#define __VOLK_ATTR_DEPRECATED
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#define __VOLK_ATTR_EXPORT
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#define __VOLK_ATTR_IMPORT
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#define __VOLK_PREFETCH(addr)
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#define __VOLK_ASM __asm__
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#define __VOLK_VOLATILE __volatile__
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#endif
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//
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// Ignore annoying warnings in MSVC
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//
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#if defined(_MSC_VER)
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#pragma warning(disable : 4244) // 'conversion' conversion from 'type1' to 'type2', possible loss of data
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#pragma warning(disable : 4305) // 'identifier' : truncation from 'type1' to 'type2'
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#endif
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//
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// C-linkage declaration macros
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// FIXME: due to the usage of complex.h, require gcc for c-linkage
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//
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#if defined(__cplusplus) && (defined(__GNUC__) || defined(__clang__))
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#define __VOLK_DECL_BEGIN \
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extern "C" \
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{
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#define __VOLK_DECL_END }
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#else
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#define __VOLK_DECL_BEGIN
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#define __VOLK_DECL_END
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#endif
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//
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// Define VOLK_API for library symbols
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// https://gcc.gnu.org/wiki/Visibility
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//
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#ifdef volk_gnsssdr_EXPORTS
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#define VOLK_API __VOLK_ATTR_EXPORT
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#else
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#define VOLK_API __VOLK_ATTR_IMPORT
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#endif
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//
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// The bit128 union used by some
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//
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#include <stdint.h>
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#ifdef LV_HAVE_SSE
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#ifdef _WIN32
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#include <intrin.h>
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#else
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#include <x86intrin.h>
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#endif
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#endif
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union bit128
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{
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uint8_t i8[16];
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uint16_t i16[8];
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uint32_t i[4];
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float f[4];
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double d[2];
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#ifdef LV_HAVE_SSE
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__m128 float_vec;
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#endif
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#ifdef LV_HAVE_SSE2
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__m128i int_vec;
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__m128d double_vec;
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#endif
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};
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union bit256
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{
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uint8_t i8[32];
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uint16_t i16[16];
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uint32_t i[8];
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float f[8];
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double d[4];
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#ifdef LV_HAVE_AVX
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__m256 float_vec;
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__m256i int_vec;
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__m256d double_vec;
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#endif
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};
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#define bit128_p(x) ((union bit128 *)(x))
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#define bit256_p(x) ((union bit256 *)(x))
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#endif /* INCLUDED_LIBVOLK_COMMON_H */
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#endif /* INCLUDED_LIBVOLK_GNSSSDR_COMMON_H */
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