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124 lines
3.5 KiB
124 lines
3.5 KiB
# Copyright (c) 2023-present The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or https://opensource.org/license/mit/.
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# This file is part of the transition from Autotools to CMake. Once CMake
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# support has been merged we should switch to using the upstream CMake
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# buildsystem.
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include(CheckCXXSourceCompiles)
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# Check for __builtin_prefetch support in the compiler.
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check_cxx_source_compiles("
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int main() {
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char data = 0;
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const char* address = &data;
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__builtin_prefetch(address, 0, 0);
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return 0;
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}
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" HAVE_BUILTIN_PREFETCH
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)
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# Check for _mm_prefetch support in the compiler.
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check_cxx_source_compiles("
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#if defined(_MSC_VER)
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#include <intrin.h>
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#else
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#include <xmmintrin.h>
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#endif
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int main() {
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char data = 0;
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const char* address = &data;
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_mm_prefetch(address, _MM_HINT_NTA);
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return 0;
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}
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" HAVE_MM_PREFETCH
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)
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# Check for SSE4.2 support in the compiler.
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if(MSVC)
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set(SSE42_CXXFLAGS /arch:AVX)
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else()
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set(SSE42_CXXFLAGS -msse4.2)
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endif()
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check_cxx_source_compiles_with_flags("${SSE42_CXXFLAGS}" "
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#include <cstdint>
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#if defined(_MSC_VER)
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#include <intrin.h>
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#elif defined(__GNUC__) && defined(__SSE4_2__)
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#include <nmmintrin.h>
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#endif
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int main() {
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uint64_t l = 0;
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l = _mm_crc32_u8(l, 0);
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l = _mm_crc32_u32(l, 0);
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l = _mm_crc32_u64(l, 0);
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return l;
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}
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" HAVE_SSE42
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)
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# Check for ARMv8 w/ CRC and CRYPTO extensions support in the compiler.
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set(ARM64_CRC_CXXFLAGS -march=armv8-a+crc+crypto)
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check_cxx_source_compiles_with_flags("${ARM64_CRC_CXXFLAGS}" "
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#include <arm_acle.h>
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#include <arm_neon.h>
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int main() {
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#ifdef __aarch64__
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__crc32cb(0, 0); __crc32ch(0, 0); __crc32cw(0, 0); __crc32cd(0, 0);
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vmull_p64(0, 0);
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#else
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#error crc32c library does not support hardware acceleration on 32-bit ARM
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#endif
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return 0;
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}
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" HAVE_ARM64_CRC32C
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)
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add_library(crc32c_common INTERFACE)
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target_compile_definitions(crc32c_common INTERFACE
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HAVE_BUILTIN_PREFETCH=$<BOOL:${HAVE_BUILTIN_PREFETCH}>
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HAVE_MM_PREFETCH=$<BOOL:${HAVE_MM_PREFETCH}>
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HAVE_STRONG_GETAUXVAL=$<BOOL:${HAVE_STRONG_GETAUXVAL}>
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BYTE_ORDER_BIG_ENDIAN=$<STREQUAL:${CMAKE_CXX_BYTE_ORDER},BIG_ENDIAN>
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HAVE_SSE42=$<BOOL:${HAVE_SSE42}>
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HAVE_ARM64_CRC32C=$<BOOL:${HAVE_ARM64_CRC32C}>
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)
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target_link_libraries(crc32c_common INTERFACE
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core_interface
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)
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add_library(crc32c STATIC EXCLUDE_FROM_ALL
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${PROJECT_SOURCE_DIR}/src/crc32c/src/crc32c.cc
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${PROJECT_SOURCE_DIR}/src/crc32c/src/crc32c_portable.cc
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)
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target_include_directories(crc32c
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PUBLIC
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$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/src/crc32c/include>
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)
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target_link_libraries(crc32c PRIVATE crc32c_common)
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set_target_properties(crc32c PROPERTIES EXPORT_COMPILE_COMMANDS OFF)
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if(HAVE_SSE42)
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add_library(crc32c_sse42 STATIC EXCLUDE_FROM_ALL
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${PROJECT_SOURCE_DIR}/src/crc32c/src/crc32c_sse42.cc
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)
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target_compile_options(crc32c_sse42 PRIVATE ${SSE42_CXXFLAGS})
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target_link_libraries(crc32c_sse42 PRIVATE crc32c_common)
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set_target_properties(crc32c_sse42 PROPERTIES EXPORT_COMPILE_COMMANDS OFF)
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target_link_libraries(crc32c PRIVATE crc32c_sse42)
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endif()
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if(HAVE_ARM64_CRC32C)
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add_library(crc32c_arm64 STATIC EXCLUDE_FROM_ALL
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${PROJECT_SOURCE_DIR}/src/crc32c/src/crc32c_arm64.cc
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)
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target_compile_options(crc32c_arm64 PRIVATE ${ARM64_CRC_CXXFLAGS})
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target_link_libraries(crc32c_arm64 PRIVATE crc32c_common)
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set_target_properties(crc32c_arm64 PROPERTIES EXPORT_COMPILE_COMMANDS OFF)
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target_link_libraries(crc32c PRIVATE crc32c_arm64)
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endif()
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