diff --git a/CMakeLists.txt b/CMakeLists.txt index 605b2675f1b64..4feb82ff4bb3f 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -63,6 +63,8 @@ set(CMAKE_POSITION_INDEPENDENT_CODE ON) include(CheckSourceCompilesAndLinks) include(cmake/introspection.cmake) +include(cmake/crc32c.cmake) + add_subdirectory(src) message("\n") diff --git a/cmake/crc32c.cmake b/cmake/crc32c.cmake new file mode 100644 index 0000000000000..fa3e629dc1d0b --- /dev/null +++ b/cmake/crc32c.cmake @@ -0,0 +1,113 @@ +# Copyright (c) 2023 The Bitcoin Core developers +# Distributed under the MIT software license, see the accompanying +# file COPYING or http://www.opensource.org/licenses/mit-license.php. + +# This file is part of the transition from Autotools to CMake. Once CMake +# support has been merged we should switch to using the upstream CMake +# buildsystem. + +include(CheckCXXSourceCompiles) + +# Check for __builtin_prefetch support in the compiler. +check_cxx_source_compiles(" + int main() { + char data = 0; + const char* address = &data; + __builtin_prefetch(address, 0, 0); + return 0; + } + " HAVE_BUILTIN_PREFETCH +) + +# Check for _mm_prefetch support in the compiler. +check_cxx_source_compiles(" + #if defined(_MSC_VER) + #include + #else + #include + #endif + + int main() { + char data = 0; + const char* address = &data; + _mm_prefetch(address, _MM_HINT_NTA); + return 0; + } + " HAVE_MM_PREFETCH +) + +# Check for SSE4.2 support in the compiler. +if(MSVC) + set(SSE42_CXXFLAGS /arch:AVX) +else() + set(SSE42_CXXFLAGS -msse4.2) +endif() +check_cxx_source_compiles_with_flags("${SSE42_CXXFLAGS}" " + #include + #if defined(_MSC_VER) + #include + #elif defined(__GNUC__) && defined(__SSE4_2__) + #include + #endif + + int main() { + uint64_t l = 0; + l = _mm_crc32_u8(l, 0); + l = _mm_crc32_u32(l, 0); + l = _mm_crc32_u64(l, 0); + return l; + } + " HAVE_SSE42 +) + +# Check for ARMv8 w/ CRC and CRYPTO extensions support in the compiler. +set(ARM_CRC_CXXFLAGS -march=armv8-a+crc) +check_cxx_source_compiles_with_flags("${ARM_CRC_CXXFLAGS}" " + #include + #include + + int main() { + #ifdef __aarch64__ + __crc32cb(0, 0); __crc32ch(0, 0); __crc32cw(0, 0); __crc32cd(0, 0); + vmull_p64(0, 0); + #else + #error crc32c library does not support hardware acceleration on 32-bit ARM + #endif + return 0; + } + " HAVE_ARM64_CRC32C +) + +add_library(crc32c STATIC EXCLUDE_FROM_ALL + ${PROJECT_SOURCE_DIR}/src/crc32c/src/crc32c.cc + ${PROJECT_SOURCE_DIR}/src/crc32c/src/crc32c_portable.cc +) + +target_compile_definitions(crc32c + PRIVATE + HAVE_BUILTIN_PREFETCH=$ + HAVE_MM_PREFETCH=$ + HAVE_STRONG_GETAUXVAL=$ + HAVE_SSE42=$ + HAVE_ARM64_CRC32C=$ + BYTE_ORDER_BIG_ENDIAN=${WORDS_BIGENDIAN} +) + +target_include_directories(crc32c + PUBLIC + $ +) + +if(HAVE_SSE42) + target_sources(crc32c PRIVATE ${PROJECT_SOURCE_DIR}/src/crc32c/src/crc32c_sse42.cc) + set_property(SOURCE ${PROJECT_SOURCE_DIR}/src/crc32c/src/crc32c_sse42.cc + APPEND PROPERTY COMPILE_OPTIONS ${SSE42_CXXFLAGS} + ) +endif() + +if(HAVE_ARM64_CRC32C) + target_sources(crc32c PRIVATE ${PROJECT_SOURCE_DIR}/src/crc32c/src/crc32c_arm64.cc) + set_property(SOURCE ${PROJECT_SOURCE_DIR}/src/crc32c/src/crc32c_arm64.cc + APPEND PROPERTY COMPILE_OPTIONS ${ARM_CRC_CXXFLAGS} + ) +endif()