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@@ -0,0 +1,158 @@
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+cmake_minimum_required(VERSION 3.15)
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+
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+project(turbobase64 C)
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+
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+if(NOT CMAKE_BUILD_TYPE)
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+ set(CMAKE_BUILD_TYPE Release)
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+endif()
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+
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+# Run cmake -D<OPTION>=ON|OFF to turn on/off options.
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+# Usage example:
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+# cmake -B build -S . -DNCHECK=ON
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+# cmake --build build
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+option(BUILD_SHARED_LIBS "Build shared libraries" OFF)
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+option(NCHECK "Dinsable for checking for more fast decoding" OFF)
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+# default=partial checking, detect allmost all errors
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+option(FULLCHECK "Enable full base64 checking" OFF)
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+option(USE_AVX512 "Enable AVX512" OFF)
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+option(BUILD_APP "Build executables" OFF)
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+
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+message(STATUS "Configuring with CMAKE_SYSTEM_PROCESSOR ${CMAKE_SYSTEM_PROCESSOR}")
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+if(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "x86_64")
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+ set(ARCH_AMD64 ON)
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+elseif(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "aarch64")
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+ set(ARCH_AARCH64 ON)
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+elseif(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "ppc64le")
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+ set(ARCH_PPC64LE ON)
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+endif()
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+
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+set(CMAKE_C_FLAGS_RELEASE "-O3")
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+set(CMAKE_C_FLAGS_DEBUG "-O0 -ggdb")
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+
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+# Set compiler options.
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+if(NCHECK)
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+ add_compile_definitions(NB64CHECK)
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+endif()
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+if(FULLCHECK)
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+ add_compile_definitions(DB64CHECK)
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+endif()
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+if(USE_AVX512)
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+ add_compile_definitions(USE_AVX512)
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+endif()
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+
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+if(ARCH_PPC64LE)
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+ set(MARCH "-march=power9 -mtune=power9")
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+ set(MSSE "-D__SSSE3__")
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+elseif(ARCH_AARCH64)
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+ set(MARCH "-march=armv8-a")
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+else()
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+ set(MARCH "-march=native")
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+ set(MSSE "-mssse3")
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+endif()
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+
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+# Object library is just a bunch of object files.
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+add_library(_b64_scalar OBJECT turbob64c.c turbob64d.c)
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+target_compile_options(_b64_scalar PRIVATE ${MARCH} -falign-loops)
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+
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+# turbob64v128.c contains code for SSE, AVX, NEON, Power9.
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+# It's compiled twice with different flags.
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+add_library(_b64_v128 OBJECT turbob64v128.c)
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+target_compile_options(_b64_v128 PRIVATE ${MSSE} -falign-loops)
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+
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+# Use a list to collect all object libraries.
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+set(_b64_objs _b64_scalar _b64_v128)
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+
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+if(ARCH_AMD64)
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+ # Compile turbob64v128.c for the second time.
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+ add_library(_b64_avx OBJECT turbob64v128.c)
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+ target_compile_options(_b64_avx PRIVATE -march=corei7-avx -mtune=corei7-avx -mno-aes -fstrict-aliasing)
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+ list(APPEND _b64_objs _b64_avx)
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+
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+ add_library(_b64_v256 OBJECT turbob64v256.c)
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+ target_compile_options(_b64_v256 PRIVATE -march=haswell -fstrict-aliasing -falign-loops)
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+ list(APPEND _b64_objs _b64_v256)
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+endif()
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+
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+if(BUILD_SHARED_LIBS)
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+ add_library(base64 SHARED)
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+else()
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+ add_library(base64 STATIC)
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+endif()
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+
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+foreach(_obj ${_b64_objs})
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+ set_target_properties(${_obj} PROPERTIES POSITION_INDEPENDENT_CODE ${BUILD_SHARED_LIBS})
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+ target_sources(base64 PRIVATE $<TARGET_OBJECTS:${_obj}>)
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+endforeach()
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+
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+# The XCODE fix is from https://github.com/ClickHouse/ClickHouse/blob/cf7d354a693f15fc5941edbf39e295d0bf8de21c/contrib%2Fbase64-cmake%2FCMakeLists.txt#L46-L54
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+if(XCODE OR XCODE_VERSION)
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+ # https://gitlab.kitware.com/cmake/cmake/issues/17457
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+ # Some native build systems may not like targets that have only object files, so consider adding at least one real source file
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+ # This applies to Xcode.
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+ if(NOT EXISTS "${CMAKE_CURRENT_BINARY_DIR}/dummy.c")
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+ file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/dummy.c" "")
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+ endif()
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+ target_sources(base64 PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/dummy.c")
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+endif()
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+
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+if(BUILD_APP)
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+ add_executable(tb64app tb64app.c)
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+ target_link_libraries(tb64app base64)
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+endif()
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+
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+# Set package information.
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+set(PACKAGE_NAME ${PROJECT_NAME})
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+set(PACKAGE_NAMESPACE "turbo::")
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+
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+# For CMAKE_INSTALL_{INCLUDEDIR,LIBDIR} etc.
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+include(GNUInstallDirs)
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+set(CONFIG_INSTALL_DIR "${CMAKE_INSTALL_LIBDIR}/cmake/${PACKAGE_NAME}")
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+
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+# Please refer "Modern CMake" on how to install a library.
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+# https://cliutils.gitlab.io/modern-cmake/chapters/install/installing.html
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+# Also refer to cmake documentation
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+# https://cmake.org/cmake/help/latest/guide/importing-exporting/index.html
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+
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+# Set PUBLIC_HEADER property for install(TARGETS) to install header file.
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+set_target_properties(base64 PROPERTIES PUBLIC_HEADER "${CMAKE_SOURCE_DIR}/turbob64.h")
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+# Set includes destination for install(TARGETS), which will be added
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+# to INTERFACE_INCLUDE_DIRECTORIES target property.
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+# So user only need to call "target_link_libraries(turbo::base64)", without
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+# needing to set include directories.
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+target_include_directories(
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+ base64 SYSTEM PUBLIC
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+ $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}> # For being used from add_subdirectory.
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+ $<INSTALL_INTERFACE:include> # When being used from an installation.
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+)
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+
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+# Installs library along with header files.
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+# Also associates the installed target files with an export.
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+install(
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+ TARGETS base64
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+ EXPORT ${PACKAGE_NAME}-targets
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+ PUBLIC_HEADER DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/${PACKAGE_NAME}"
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+)
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+
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+# Generates and installs cmake config files containing exported targets.
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+install(
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+ EXPORT ${PACKAGE_NAME}-targets
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+ DESTINATION "${CONFIG_INSTALL_DIR}"
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+ NAMESPACE ${PACKAGE_NAMESPACE}
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+)
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+
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+# Generate cmake config-files from template.
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+include(CMakePackageConfigHelpers)
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+configure_package_config_file(
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+ "${CMAKE_CURRENT_SOURCE_DIR}/cmake/${PACKAGE_NAME}-config.cmake.in"
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+ ${PACKAGE_NAME}-config.cmake
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+ INSTALL_DESTINATION "${CONFIG_INSTALL_DIR}"
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+ #NO_CHECK_REQUIRED_COMPONENTS_MACRO
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+ # PATH_VARS can be referenced in config template file with PACKAGE_<var>.
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+ PATH_VARS CMAKE_INSTALL_INCLUDEDIR CMAKE_INSTALL_LIBDIR
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+ )
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+install(
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+ FILES
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+ "${CMAKE_CURRENT_BINARY_DIR}/${PACKAGE_NAME}-config.cmake"
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+ DESTINATION "${CONFIG_INSTALL_DIR}"
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+)
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+
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Chen Yufei