LTO используется только для исполняемых файлов, но не библиотек
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@ -46,4 +46,41 @@ function(common_target_properties Name)
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endif()
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endif()
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endif()
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endif()
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# LTO only for executables (not libraries) in Release build type
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get_target_property(target_type ${Name} TYPE)
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if(target_type STREQUAL "EXECUTABLE" AND CMAKE_BUILD_TYPE STREQUAL "Release")
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check_cxx_compiler_flag(-flto CXX_HAS_LTO_FLAG)
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check_cxx_compiler_flag(-fno-fat-lto-objects CXX_HAS_NO_FAT_LTO_FLAG)
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if(CMAKE_CXX_COMPILER_IS_GCC AND CXX_HAS_LTO_FLAG)
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find_program(CMAKE_GCC_AR
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NAMES "${_CMAKE_TOOLCHAIN_PREFIX}gcc-ar${_CMAKE_TOOLCHAIN_SUFFIX}"
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"${_CMAKE_TOOLCHAIN_PREFIX}gcc-ar"
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HINTS ${_CMAKE_TOOLCHAIN_LOCATION})
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find_program(CMAKE_GCC_NM
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NAMES "${_CMAKE_TOOLCHAIN_PREFIX}gcc-nm${_CMAKE_TOOLCHAIN_SUFFIX}"
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"${_CMAKE_TOOLCHAIN_PREFIX}gcc-nm"
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HINTS ${_CMAKE_TOOLCHAIN_LOCATION})
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find_program(CMAKE_GCC_RANLIB
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NAMES "${_CMAKE_TOOLCHAIN_PREFIX}gcc-ranlib${_CMAKE_TOOLCHAIN_SUFFIX}"
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"${_CMAKE_TOOLCHAIN_PREFIX}gcc-ranlib"
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HINTS ${_CMAKE_TOOLCHAIN_LOCATION})
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if(CMAKE_GCC_AR AND CMAKE_GCC_NM AND CMAKE_GCC_RANLIB)
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set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -flto")
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if(CXX_HAS_NO_FAT_LTO_FLAG)
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set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -fno-fat-lto-objects")
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endif()
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set(CMAKE_AR "${CMAKE_GCC_AR}")
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set(CMAKE_NM "${CMAKE_GCC_NM}")
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set(CMAKE_RANLIB "${CMAKE_GCC_RANLIB}")
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else()
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message(
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WARNING
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"GCC indicates LTO support, but binutils wrappers could not be found. Disabling LTO.")
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endif()
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else()
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check_enable_compiler_flag(-flto)
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check_enable_compiler_flag(-fno-fat-lto-objects)
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endif()
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endif()
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endfunction()
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endfunction()
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@ -1,14 +1,19 @@
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# based on https://github.com/bluescarni/yacma
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# based on https://github.com/bluescarni/yacma
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include(CheckCXXCompilerFlag)
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if(LSB_DISTRIBUTOR_ID STREQUAL "AstraLinuxSE"
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if(LSB_DISTRIBUTOR_ID STREQUAL "AstraLinuxSE"
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AND LSB_CODENAME STREQUAL "smolensk"
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AND LSB_CODENAME STREQUAL "smolensk"
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AND LSB_RELEASE STREQUAL "1.5")
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AND LSB_RELEASE STREQUAL "1.5")
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set(_CMAKE_TOOLCHAIN_PREFIX "x86_64-linux-gnu-")
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set(_CMAKE_TOOLCHAIN_PREFIX "x86_64-linux-gnu-")
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set(_CMAKE_TOOLCHAIN_SUFFIX "-4.7")
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set(_CMAKE_TOOLCHAIN_SUFFIX "-4.7")
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set(_CMAKE_TOOLCHAIN_LOCATION} "/usr/bin")
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set(_CMAKE_TOOLCHAIN_LOCATION} "/usr/bin")
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else()
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# -Wshadow gives a lot of false positives with GCC 4.7.2 in Astra Linux 1.5
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if(CMAKE_CXX_COMPILER_IS_GCC)
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check_enable_cxx_flag(-Wshadow)
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endif()
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endif()
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endif()
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include(CheckCXXCompilerFlag)
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macro(CHECK_ENABLE_CXX_FLAG flag)
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macro(CHECK_ENABLE_CXX_FLAG flag)
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set(CMAKE_REQUIRED_QUIET TRUE)
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set(CMAKE_REQUIRED_QUIET TRUE)
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@ -92,41 +97,6 @@ if(CMAKE_CXX_COMPILER_IS_CLANG OR CMAKE_CXX_COMPILER_IS_INTEL OR CMAKE_CXX_COMPI
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check_enable_cxx_flag(-Wstrict-null-sentinel)
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check_enable_cxx_flag(-Wstrict-null-sentinel)
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check_enable_cxx_flag(-Wshadow-all)
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check_enable_cxx_flag(-Wshadow-all)
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endif()
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endif()
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if(CMAKE_BUILD_TYPE STREQUAL "Release")
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check_cxx_compiler_flag(-flto CXX_HAS_LTO_FLAG)
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check_cxx_compiler_flag(-fno-fat-lto-objects CXX_HAS_NO_FAT_LTO_FLAG)
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if(CMAKE_CXX_COMPILER_IS_GCC AND CXX_HAS_LTO_FLAG)
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find_program(CMAKE_GCC_AR
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NAMES "${_CMAKE_TOOLCHAIN_PREFIX}gcc-ar${_CMAKE_TOOLCHAIN_SUFFIX}"
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"${_CMAKE_TOOLCHAIN_PREFIX}gcc-ar"
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HINTS ${_CMAKE_TOOLCHAIN_LOCATION})
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find_program(CMAKE_GCC_NM
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NAMES "${_CMAKE_TOOLCHAIN_PREFIX}gcc-nm${_CMAKE_TOOLCHAIN_SUFFIX}"
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"${_CMAKE_TOOLCHAIN_PREFIX}gcc-nm"
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HINTS ${_CMAKE_TOOLCHAIN_LOCATION})
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find_program(CMAKE_GCC_RANLIB
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NAMES "${_CMAKE_TOOLCHAIN_PREFIX}gcc-ranlib${_CMAKE_TOOLCHAIN_SUFFIX}"
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"${_CMAKE_TOOLCHAIN_PREFIX}gcc-ranlib"
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HINTS ${_CMAKE_TOOLCHAIN_LOCATION})
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if(CMAKE_GCC_AR AND CMAKE_GCC_NM AND CMAKE_GCC_RANLIB)
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set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -flto")
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if(CXX_HAS_NO_FAT_LTO_FLAG)
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set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -fno-fat-lto-objects")
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endif()
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set(CMAKE_AR "${CMAKE_GCC_AR}")
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set(CMAKE_NM "${CMAKE_GCC_NM}")
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set(CMAKE_RANLIB "${CMAKE_GCC_RANLIB}")
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else()
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message(
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WARNING
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"GCC indicates LTO support, but binutils wrappers could not be found. Disabling LTO.")
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endif()
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else()
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check_enable_compiler_flag(-flto)
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check_enable_compiler_flag(-fno-fat-lto-objects)
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endif()
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endif()
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endif()
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endif()
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if(CMAKE_CXX_COMPILER_IS_GCC)
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if(CMAKE_CXX_COMPILER_IS_GCC)
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@ -142,10 +112,6 @@ if(CMAKE_CXX_COMPILER_IS_GCC)
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# Let's just disable the warning for now.
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# Let's just disable the warning for now.
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check_enable_cxx_flag(-Wno-attributes)
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check_enable_cxx_flag(-Wno-attributes)
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endif()
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endif()
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if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER "4.799")
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# -Wshadow gives a lot of false positives with GCC 4.7.2 in Astra Linux 1.5
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check_enable_cxx_flag(-Wshadow)
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endif()
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endif()
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endif()
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if(CMAKE_SYSTEM_PROCESSOR STREQUAL "e2k")
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if(CMAKE_SYSTEM_PROCESSOR STREQUAL "e2k")
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