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Use cpuinfo to get cpu instruction set extension information (#1600)
* Add cpuinfo third-party library for CPU feature detection (licensed under BSD)
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,165 @@ | ||
| CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12 FATAL_ERROR) | ||
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| INCLUDE(GNUInstallDirs) | ||
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| # ---[ Options. | ||
| SET(CPUINFO_RUNTIME_TYPE "default" CACHE STRING "Type of runtime library (shared, static, or default) to use") | ||
| SET_PROPERTY(CACHE CPUINFO_RUNTIME_TYPE PROPERTY STRINGS default static shared) | ||
| SET(CPUINFO_LOG_LEVEL "default" CACHE STRING "Minimum logging level (info with lower severity will be ignored)") | ||
| SET_PROPERTY(CACHE CPUINFO_LOG_LEVEL PROPERTY STRINGS default debug info warning error fatal none) | ||
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| MACRO(CPUINFO_TARGET_ENABLE_C99 target) | ||
| IF(${CMAKE_VERSION} VERSION_LESS "3.1") | ||
| IF(NOT MSVC) | ||
| TARGET_COMPILE_OPTIONS(${target} PRIVATE -std=c99) | ||
| ENDIF() | ||
| ELSE() | ||
| SET_TARGET_PROPERTIES(${target} PROPERTIES | ||
| C_STANDARD 99 | ||
| C_EXTENSIONS NO) | ||
| ENDIF() | ||
| ENDMACRO() | ||
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| MACRO(CPUINFO_TARGET_ENABLE_CXX11 target) | ||
| IF(${CMAKE_VERSION} VERSION_LESS "3.1") | ||
| IF(NOT MSVC) | ||
| TARGET_COMPILE_OPTIONS(${target} PRIVATE -std=c++11) | ||
| ENDIF() | ||
| ELSE() | ||
| SET_TARGET_PROPERTIES(${target} PROPERTIES | ||
| CXX_STANDARD 11 | ||
| CXX_EXTENSIONS NO) | ||
| ENDIF() | ||
| ENDMACRO() | ||
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| MACRO(CPUINFO_TARGET_RUNTIME_LIBRARY target) | ||
| IF(MSVC AND NOT CPUINFO_RUNTIME_TYPE STREQUAL "default") | ||
| IF(CPUINFO_RUNTIME_TYPE STREQUAL "shared") | ||
| TARGET_COMPILE_OPTIONS(${target} PRIVATE | ||
| "/MD$<$<CONFIG:Debug>:d>") | ||
| ELSEIF(CPUINFO_RUNTIME_TYPE STREQUAL "static") | ||
| TARGET_COMPILE_OPTIONS(${target} PRIVATE | ||
| "/MT$<$<CONFIG:Debug>:d>") | ||
| ENDIF() | ||
| ENDIF() | ||
| ENDMACRO() | ||
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| # ---[ Build flags | ||
| SET(CPUINFO_SUPPORTED_PLATFORM TRUE) | ||
| IF(NOT CMAKE_SYSTEM_PROCESSOR) | ||
| IF(NOT IOS) | ||
| MESSAGE(WARNING | ||
| "Target processor architecture is not specified. " | ||
| "cpuinfo will compile, but cpuinfo_initialize() will always fail.") | ||
| SET(CPUINFO_SUPPORTED_PLATFORM FALSE) | ||
| ENDIF() | ||
| ELSEIF(NOT CMAKE_SYSTEM_PROCESSOR MATCHES "^(i[3-6]86|AMD64|x86(_64)?|armv[5-8].*|aarch64|arm64)$") | ||
| MESSAGE(WARNING | ||
| "Target processor architecture \"${CMAKE_SYSTEM_PROCESSOR}\" is not supported in cpuinfo. " | ||
| "cpuinfo will compile, but cpuinfo_initialize() will always fail.") | ||
| SET(CPUINFO_SUPPORTED_PLATFORM FALSE) | ||
| ENDIF() | ||
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| IF(NOT CMAKE_SYSTEM_NAME) | ||
| MESSAGE(WARNING | ||
| "Target operating system is not specified. " | ||
| "cpuinfo will compile, but cpuinfo_initialize() will always fail.") | ||
| SET(CPUINFO_SUPPORTED_PLATFORM FALSE) | ||
| ELSEIF(NOT CMAKE_SYSTEM_NAME MATCHES "^(Windows|CYGWIN|MSYS|Darwin|Linux|Android)$") | ||
| IF(${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.14" AND NOT CMAKE_SYSTEM_NAME STREQUAL "iOS") | ||
| MESSAGE(WARNING | ||
| "Target operating system \"${CMAKE_SYSTEM_NAME}\" is not supported in cpuinfo. " | ||
| "cpuinfo will compile, but cpuinfo_initialize() will always fail.") | ||
| SET(CPUINFO_SUPPORTED_PLATFORM FALSE) | ||
| ENDIF() | ||
| ENDIF() | ||
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| # ---[ cpuinfo library | ||
| SET(CPUINFO_SRCS | ||
| src/init.c | ||
| src/api.c) | ||
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| IF(CPUINFO_SUPPORTED_PLATFORM) | ||
| IF(NOT CMAKE_SYSTEM_NAME STREQUAL "Emscripten" AND (CMAKE_SYSTEM_PROCESSOR MATCHES "^(i[3-6]86|AMD64|x86(_64)?)$" OR IOS_ARCH MATCHES "^(i386|x86_64)$")) | ||
| LIST(APPEND CPUINFO_SRCS | ||
| src/x86/x86_init.c | ||
| src/x86/vendor.c | ||
| src/x86/isa.c) | ||
| IF(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Android") | ||
| LIST(APPEND CPUINFO_SRCS | ||
| src/x86/linux/init.c) | ||
| ELSEIF(CMAKE_SYSTEM_NAME STREQUAL "Darwin" OR CMAKE_SYSTEM_NAME STREQUAL "iOS") | ||
| LIST(APPEND CPUINFO_SRCS src/x86/mach/x86_mach_init.c) | ||
| ELSEIF(CMAKE_SYSTEM_NAME MATCHES "^(Windows|CYGWIN|MSYS)$") | ||
| LIST(APPEND CPUINFO_SRCS src/x86/windows/init.c) | ||
| ENDIF() | ||
| ENDIF() | ||
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| IF(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Android") | ||
| SET(CMAKE_THREAD_PREFER_PTHREAD TRUE) | ||
| SET(THREADS_PREFER_PTHREAD_FLAG TRUE) | ||
| FIND_PACKAGE(Threads REQUIRED) | ||
| ENDIF() | ||
| ENDIF() | ||
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| ADD_LIBRARY(cpuinfo OBJECT ${CPUINFO_SRCS}) | ||
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| CPUINFO_TARGET_ENABLE_C99(cpuinfo) | ||
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| INCLUDE_DIRECTORIES(deps/clog/include) | ||
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| SET_PROPERTY(TARGET cpuinfo PROPERTY POSITION_INDEPENDENT_CODE ON) | ||
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| CPUINFO_TARGET_RUNTIME_LIBRARY(cpuinfo) | ||
| IF(CMAKE_SYSTEM_NAME MATCHES "^(Windows|CYGWIN|MSYS)$") | ||
| # Target Windows 7+ API | ||
| TARGET_COMPILE_DEFINITIONS(cpuinfo PRIVATE _WIN32_WINNT=0x0601) | ||
| ENDIF() | ||
| SET_TARGET_PROPERTIES(cpuinfo PROPERTIES PUBLIC_HEADER include/cpuinfo.h) | ||
| TARGET_INCLUDE_DIRECTORIES(cpuinfo BEFORE PUBLIC include) | ||
| TARGET_INCLUDE_DIRECTORIES(cpuinfo BEFORE PRIVATE src) | ||
| IF(CPUINFO_LOG_LEVEL STREQUAL "default") | ||
| # default logging level: error (subject to change) | ||
| TARGET_COMPILE_DEFINITIONS(cpuinfo PRIVATE CPUINFO_LOG_LEVEL=2) | ||
| ELSEIF(CPUINFO_LOG_LEVEL STREQUAL "debug") | ||
| TARGET_COMPILE_DEFINITIONS(cpuinfo PRIVATE CPUINFO_LOG_LEVEL=5) | ||
| ELSEIF(CPUINFO_LOG_LEVEL STREQUAL "info") | ||
| TARGET_COMPILE_DEFINITIONS(cpuinfo PRIVATE CPUINFO_LOG_LEVEL=4) | ||
| ELSEIF(CPUINFO_LOG_LEVEL STREQUAL "warning") | ||
| TARGET_COMPILE_DEFINITIONS(cpuinfo PRIVATE CPUINFO_LOG_LEVEL=3) | ||
| ELSEIF(CPUINFO_LOG_LEVEL STREQUAL "error") | ||
| TARGET_COMPILE_DEFINITIONS(cpuinfo PRIVATE CPUINFO_LOG_LEVEL=2) | ||
| ELSEIF(CPUINFO_LOG_LEVEL STREQUAL "fatal") | ||
| TARGET_COMPILE_DEFINITIONS(cpuinfo PRIVATE CPUINFO_LOG_LEVEL=1) | ||
| ELSEIF(CPUINFO_LOG_LEVEL STREQUAL "none") | ||
| TARGET_COMPILE_DEFINITIONS(cpuinfo PRIVATE CPUINFO_LOG_LEVEL=0) | ||
| ELSE() | ||
| MESSAGE(FATAL_ERROR "Unsupported logging level ${CPUINFO_LOG_LEVEL}") | ||
| ENDIF() | ||
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| IF(CPUINFO_SUPPORTED_PLATFORM) | ||
| TARGET_COMPILE_DEFINITIONS(cpuinfo INTERFACE CPUINFO_SUPPORTED_PLATFORM=1) | ||
| IF(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Android") | ||
| TARGET_COMPILE_DEFINITIONS(cpuinfo PRIVATE _GNU_SOURCE=1) | ||
| ENDIF() | ||
| ELSE() | ||
| TARGET_COMPILE_DEFINITIONS(cpuinfo INTERFACE CPUINFO_SUPPORTED_PLATFORM=0) | ||
| ENDIF() | ||
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| # ---[ cpuinfo dependencies: clog | ||
| IF(NOT DEFINED CLOG_SOURCE_DIR) | ||
| SET(CLOG_SOURCE_DIR "deps/clog") | ||
| ENDIF() | ||
| IF(NOT TARGET clog) | ||
| SET(CLOG_BUILD_TESTS OFF CACHE BOOL "") | ||
| SET(CLOG_RUNTIME_TYPE "${CPUINFO_RUNTIME_TYPE}" CACHE STRING "") | ||
| ADD_SUBDIRECTORY( | ||
| "${CLOG_SOURCE_DIR}") | ||
| # We build static version of clog but a dynamic library may indirectly depend on it | ||
| SET_PROPERTY(TARGET clog PROPERTY POSITION_INDEPENDENT_CODE ON) | ||
| ENDIF() | ||
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| ADD_LIBRARY(cpuinfo_public INTERFACE) | ||
| TARGET_SOURCES(cpuinfo_public INTERFACE | ||
| $<TARGET_OBJECTS:cpuinfo> | ||
| $<TARGET_OBJECTS:clog>) |
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