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260 lines
8.7 KiB
260 lines
8.7 KiB
4 months ago
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cmake_minimum_required(VERSION 3.0)
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# option() honors normal variables.
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# see: https://cmake.org/cmake/help/git-stage/policy/CMP0077.html
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if(POLICY CMP0077)
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cmake_policy(SET CMP0077 NEW)
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endif()
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project(CpuFeatures VERSION 0.6.0 LANGUAGES C)
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set(CMAKE_C_STANDARD 99)
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# Default Build Type to be Release
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if(NOT CMAKE_BUILD_TYPE)
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set(CMAKE_BUILD_TYPE "Release" CACHE STRING
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"Choose the type of build, options are: Debug Release RelWithDebInfo MinSizeRel."
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FORCE)
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endif(NOT CMAKE_BUILD_TYPE)
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# BUILD_TESTING is a standard CMake variable, but we declare it here to make it
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# prominent in the GUI.
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option(BUILD_TESTING "Enable test (depends on googletest)." OFF)
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# BUILD_SHARED_LIBS is a standard CMake variable, but we declare it here to make
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# it prominent in the GUI.
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# cpu_features uses bit-fields which are - to some extends - implementation-defined (see https://en.cppreference.com/w/c/language/bit_field).
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# As a consequence it is discouraged to use cpu_features as a shared library because different compilers may interpret the code in different ways.
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# Prefer static linking from source whenever possible.
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option(BUILD_SHARED_LIBS "Build library as shared." OFF)
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# PIC
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option(BUILD_PIC "Build with Position Independant Code." OFF) # Default is off at least for GCC
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# Force PIC on unix when building shared libs
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# see: https://en.wikipedia.org/wiki/Position-independent_code
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if(BUILD_SHARED_LIBS AND UNIX)
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set(BUILD_PIC ON)
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endif()
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include(CheckIncludeFile)
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include(CheckSymbolExists)
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include(GNUInstallDirs)
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macro(setup_include_and_definitions TARGET_NAME)
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target_include_directories(${TARGET_NAME}
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PUBLIC $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
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PRIVATE $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include/internal>
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)
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target_compile_definitions(${TARGET_NAME}
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PUBLIC STACK_LINE_READER_BUFFER_SIZE=1024
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)
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endmacro()
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set(PROCESSOR_IS_MIPS FALSE)
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set(PROCESSOR_IS_ARM FALSE)
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set(PROCESSOR_IS_AARCH64 FALSE)
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set(PROCESSOR_IS_X86 FALSE)
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set(PROCESSOR_IS_POWER FALSE)
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if(CMAKE_SYSTEM_PROCESSOR MATCHES "^mips")
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set(PROCESSOR_IS_MIPS TRUE)
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^arm")
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set(PROCESSOR_IS_ARM TRUE)
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^aarch64")
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set(PROCESSOR_IS_AARCH64 TRUE)
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "(x86_64)|(AMD64|amd64)|(^i.86$)")
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set(PROCESSOR_IS_X86 TRUE)
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(powerpc|ppc)")
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set(PROCESSOR_IS_POWER TRUE)
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endif()
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macro(add_cpu_features_headers_and_sources HDRS_LIST_NAME SRCS_LIST_NAME)
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list(APPEND ${HDRS_LIST_NAME} ${PROJECT_SOURCE_DIR}/include/cpu_features_macros.h)
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list(APPEND ${HDRS_LIST_NAME} ${PROJECT_SOURCE_DIR}/include/cpu_features_cache_info.h)
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if(PROCESSOR_IS_MIPS)
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list(APPEND ${HDRS_LIST_NAME} ${PROJECT_SOURCE_DIR}/include/cpuinfo_mips.h)
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list(APPEND ${SRCS_LIST_NAME} ${PROJECT_SOURCE_DIR}/src/cpuinfo_mips.c)
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elseif(PROCESSOR_IS_ARM)
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list(APPEND ${HDRS_LIST_NAME} ${PROJECT_SOURCE_DIR}/include/cpuinfo_arm.h)
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list(APPEND ${SRCS_LIST_NAME} ${PROJECT_SOURCE_DIR}/src/cpuinfo_arm.c)
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elseif(PROCESSOR_IS_AARCH64)
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list(APPEND ${HDRS_LIST_NAME} ${PROJECT_SOURCE_DIR}/include/cpuinfo_aarch64.h)
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list(APPEND ${SRCS_LIST_NAME} ${PROJECT_SOURCE_DIR}/src/cpuinfo_aarch64.c)
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elseif(PROCESSOR_IS_X86)
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list(APPEND ${HDRS_LIST_NAME} ${PROJECT_SOURCE_DIR}/include/cpuinfo_x86.h)
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list(APPEND ${SRCS_LIST_NAME} ${PROJECT_SOURCE_DIR}/include/internal/cpuid_x86.h)
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list(APPEND ${SRCS_LIST_NAME} ${PROJECT_SOURCE_DIR}/src/cpuinfo_x86.c)
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elseif(PROCESSOR_IS_POWER)
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list(APPEND ${HDRS_LIST_NAME} ${PROJECT_SOURCE_DIR}/include/cpuinfo_ppc.h)
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list(APPEND ${SRCS_LIST_NAME} ${PROJECT_SOURCE_DIR}/src/cpuinfo_ppc.c)
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else()
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message(FATAL_ERROR "Unsupported architectures ${CMAKE_SYSTEM_PROCESSOR}")
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endif()
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endmacro()
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#
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# library : utils
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#
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add_library(utils OBJECT
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${PROJECT_SOURCE_DIR}/include/internal/bit_utils.h
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${PROJECT_SOURCE_DIR}/include/internal/filesystem.h
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${PROJECT_SOURCE_DIR}/include/internal/stack_line_reader.h
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${PROJECT_SOURCE_DIR}/include/internal/string_view.h
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${PROJECT_SOURCE_DIR}/src/filesystem.c
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${PROJECT_SOURCE_DIR}/src/stack_line_reader.c
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${PROJECT_SOURCE_DIR}/src/string_view.c
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)
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set_property(TARGET utils PROPERTY POSITION_INDEPENDENT_CODE ${BUILD_PIC})
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setup_include_and_definitions(utils)
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#
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# library : unix_based_hardware_detection
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#
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if(UNIX)
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add_library(unix_based_hardware_detection OBJECT
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${PROJECT_SOURCE_DIR}/include/internal/hwcaps.h
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${PROJECT_SOURCE_DIR}/src/hwcaps.c
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)
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setup_include_and_definitions(unix_based_hardware_detection)
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check_include_file(dlfcn.h HAVE_DLFCN_H)
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if(HAVE_DLFCN_H)
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target_compile_definitions(unix_based_hardware_detection PRIVATE HAVE_DLFCN_H)
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endif()
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check_symbol_exists(getauxval "sys/auxv.h" HAVE_STRONG_GETAUXVAL)
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if(HAVE_STRONG_GETAUXVAL)
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target_compile_definitions(unix_based_hardware_detection PRIVATE HAVE_STRONG_GETAUXVAL)
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endif()
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set_property(TARGET unix_based_hardware_detection PROPERTY POSITION_INDEPENDENT_CODE ${BUILD_PIC})
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endif()
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#
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# library : cpu_features
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#
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set (CPU_FEATURES_HDRS)
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set (CPU_FEATURES_SRCS)
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add_cpu_features_headers_and_sources(CPU_FEATURES_HDRS CPU_FEATURES_SRCS)
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list(APPEND CPU_FEATURES_SRCS $<TARGET_OBJECTS:utils>)
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if(NOT PROCESSOR_IS_X86 AND UNIX)
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list(APPEND CPU_FEATURES_SRCS $<TARGET_OBJECTS:unix_based_hardware_detection>)
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endif()
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add_library(cpu_features ${CPU_FEATURES_HDRS} ${CPU_FEATURES_SRCS})
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set_target_properties(cpu_features PROPERTIES PUBLIC_HEADER "${CPU_FEATURES_HDRS}")
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setup_include_and_definitions(cpu_features)
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target_link_libraries(cpu_features PUBLIC ${CMAKE_DL_LIBS})
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set_property(TARGET cpu_features PROPERTY POSITION_INDEPENDENT_CODE ${BUILD_PIC})
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target_include_directories(cpu_features
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PUBLIC $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}/cpu_features>
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)
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if(PROCESSOR_IS_X86)
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if(APPLE)
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target_compile_definitions(cpu_features PRIVATE HAVE_SYSCTLBYNAME)
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endif()
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endif()
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add_library(CpuFeature::cpu_features ALIAS cpu_features)
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#
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# program : list_cpu_features
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#
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add_executable(list_cpu_features ${PROJECT_SOURCE_DIR}/src/utils/list_cpu_features.c)
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target_link_libraries(list_cpu_features PRIVATE cpu_features)
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add_executable(CpuFeature::list_cpu_features ALIAS list_cpu_features)
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#
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# ndk_compat
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#
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if(ANDROID)
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add_subdirectory(ndk_compat)
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endif()
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#
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# tests
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#
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include(CTest)
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if(BUILD_TESTING)
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# Automatically incorporate googletest into the CMake Project if target not
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# found.
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enable_language(CXX)
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set(CMAKE_CXX_STANDARD 11)
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set(CMAKE_CXX_STANDARD_REQUIRED ON)
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set(CMAKE_CXX_EXTENSIONS OFF) # prefer use of -std11 instead of -gnustd11
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if(NOT TARGET gtest OR NOT TARGET gmock_main)
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# Download and unpack googletest at configure time.
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configure_file(
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cmake/googletest.CMakeLists.txt.in
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googletest-download/CMakeLists.txt
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)
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execute_process(
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COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
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RESULT_VARIABLE result
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WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/googletest-download)
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if(result)
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message(FATAL_ERROR "CMake step for googletest failed: ${result}")
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endif()
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execute_process(
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COMMAND ${CMAKE_COMMAND} --build .
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RESULT_VARIABLE result
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WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/googletest-download)
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if(result)
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message(FATAL_ERROR "Build step for googletest failed: ${result}")
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endif()
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# Prevent overriding the parent project's compiler/linker settings on
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# Windows.
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set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
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# Add googletest directly to our build. This defines the gtest and
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# gtest_main targets.
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add_subdirectory(${CMAKE_BINARY_DIR}/googletest-src
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${CMAKE_BINARY_DIR}/googletest-build
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EXCLUDE_FROM_ALL)
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endif()
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add_subdirectory(test)
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endif()
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#
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# Install cpu_features and list_cpu_features
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#
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include(GNUInstallDirs)
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install(TARGETS cpu_features list_cpu_features
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EXPORT CpuFeaturesTargets
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PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/cpu_features
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ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
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LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
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RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
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)
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install(EXPORT CpuFeaturesTargets
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NAMESPACE CpuFeatures::
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DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/CpuFeatures
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COMPONENT Devel
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)
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include(CMakePackageConfigHelpers)
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configure_package_config_file(cmake/CpuFeaturesConfig.cmake.in
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"${PROJECT_BINARY_DIR}/CpuFeaturesConfig.cmake"
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INSTALL_DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/CpuFeatures"
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NO_SET_AND_CHECK_MACRO
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NO_CHECK_REQUIRED_COMPONENTS_MACRO
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)
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write_basic_package_version_file(
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"${PROJECT_BINARY_DIR}/CpuFeaturesConfigVersion.cmake"
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COMPATIBILITY SameMajorVersion
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)
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install(
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FILES
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"${PROJECT_BINARY_DIR}/CpuFeaturesConfig.cmake"
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"${PROJECT_BINARY_DIR}/CpuFeaturesConfigVersion.cmake"
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DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/CpuFeatures"
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COMPONENT Devel
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)
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