Оптимизация работы с флагами
This commit is contained in:
parent
9ff6a41c5a
commit
e4ec257b11
@ -1,5 +1,7 @@
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cmake_policy(SET CMP0057 NEW)
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option(CMLIB_ENABLE_WARNING_FLAGS "Enable autodetected warning flags" ON)
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# Добавление конфигурации для профилирования
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if(CMAKE_CONFIGURATION_TYPES)
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if(NOT "Profile" IN_LIST CMAKE_CONFIGURATION_TYPES)
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@ -35,7 +37,8 @@ if(CMAKE_BUILD_TYPE STREQUAL Profile)
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CACHE STRING "" FORCE)
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set(CMAKE_SHARED_LINKER_FLAGS_PROFILE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} ${_gcc_profile_flags}"
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CACHE STRING "" FORCE)
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set(CMAKE_STATIC_LINKER_FLAGS_PROFILE "${CMAKE_STATIC_LINKER_FLAGS_RELEASE}" CACHE STRING "" FORCE)
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set(CMAKE_STATIC_LINKER_FLAGS_PROFILE "${CMAKE_STATIC_LINKER_FLAGS_RELEASE} ${_gcc_profile_flags}"
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CACHE STRING "" FORCE)
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set(CMAKE_MODULE_LINKER_FLAGS_PROFILE "${CMAKE_MODULE_LINKER_FLAGS_RELEASE} ${_gcc_profile_flags}"
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CACHE STRING "" FORCE)
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elseif(CMAKE_CXX_COMPILER_IS_Intel)
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@ -53,12 +56,19 @@ elseif(CMAKE_BUILD_TYPE STREQUAL Debug)
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set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} ${_gcc_debug_flags}" CACHE STRING "" FORCE)
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string(REPLACE " ${_gcc_debug_flags}" "" CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}")
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if(CMLIB_ENABLE_WARNING_FLAGS)
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set(CMAKE_CXX_FLAGS_DEBUG
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"${CMAKE_CXX_FLAGS_DEBUG} ${CMLIB_DETECTED_CXX_FLAGS_DEBUG} ${_gcc_debug_flags}" CACHE STRING ""
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FORCE)
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else()
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set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} ${_gcc_debug_flags}" CACHE STRING "" FORCE)
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endif()
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endif()
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set(CMAKE_VERBOSE_MAKEFILE ON CACHE BOOL "Enable generation of verbose build scripts." FORCE)
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set(CMAKE_EXPORT_COMPILE_COMMANDS ON CACHE BOOL "Enable generation of compile_commands.json." FORCE)
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set(DEBUG 1)
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elseif(CMAKE_BUILD_TYPE STREQUAL Release)
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set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} ${CMLIB_DETECTED_CXX_FLAGS}" CACHE STRING "" FORCE)
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set(RELEASE 1)
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elseif(CMAKE_BUILD_TYPE STREQUAL None)
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# Режим None используется для статического анализа кода
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@ -1,7 +1,5 @@
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# based on https://github.com/bluescarni/yacma
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option(CMLIB_WARNING_FLAGS "Enable warning flags" ON)
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include(CheckCXXCompilerFlag)
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macro(CHECK_ENABLE_CXX_FLAG flag)
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@ -10,8 +8,8 @@ macro(CHECK_ENABLE_CXX_FLAG flag)
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unset(CMAKE_REQUIRED_QUIET)
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if(CHECK_CXX_FLAG)
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message(STATUS "'${flag}': flag is enabled.")
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add_compile_options("${flag}")
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message(STATUS "'${flag}': flag is supported.")
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string(CONCAT _CMLIB_DETECTED_CXX_FLAGS "${_CMLIB_DETECTED_CXX_FLAGS} ${flag}")
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else()
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message(STATUS "'${flag}': flag is NOT supported.")
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endif()
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@ -19,6 +17,21 @@ macro(CHECK_ENABLE_CXX_FLAG flag)
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unset(CHECK_CXX_FLAG CACHE)
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endmacro()
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macro(CHECK_ENABLE_DEBUG_CXX_FLAG flag)
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set(CMAKE_REQUIRED_QUIET TRUE)
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check_cxx_compiler_flag("${flag}" CHECK_CXX_FLAG_DEBUG)
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unset(CMAKE_REQUIRED_QUIET)
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if(CHECK_CXX_FLAG_DEBUG)
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message(STATUS "'${flag}': debug flag is supported.")
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string(CONCAT _CMLIB_DETECTED_CXX_FLAGS_DEBUG "${_CMLIB_DETECTED_CXX_FLAGS_DEBUG} ${flag}")
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else()
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message(STATUS "'${flag}': debug flag is NOT supported.")
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endif()
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# NOTE: check_cxx_compiler stores variables in the cache.
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unset(CHECK_CXX_FLAG_DEBUG CACHE)
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endmacro()
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function(cmlib_set_cxx_standard version)
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# Выбор стандарта по умолчанию (можно переопределить в проекте)
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set(CMAKE_CXX_STANDARD_REQUIRED YES PARENT_SCOPE)
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@ -61,6 +74,116 @@ function(cmlib_set_cxx_standard version)
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endif()
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endfunction()
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if(NOT CMLIB_CXX_FLAGS_AUTODETECTION_DONE)
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set(_CMLIB_DETECTED_CXX_FLAGS "")
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set(_CMLIB_DETECTED_CXX_FLAGS_DEBUG "")
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# Configuration bits specific for clang.
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if(CMAKE_CXX_COMPILER_IS_CLANG)
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# For now it seems like -Wshadow from clang behaves better than GCC's,
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# just enable it here for the time being.
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check_enable_debug_cxx_flag(-Wshadow)
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# New warnings in clang 8.
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# NOTE: a few issues with macros here, let's disable for now.
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# CHECK_ENABLE_DEBUG_CXX_FLAG(-Wextra-semi-stmt)
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# New warnings in clang 10.
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check_enable_debug_cxx_flag(-Wtautological-overlap-compare)
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check_enable_debug_cxx_flag(-Wtautological-compare)
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check_enable_debug_cxx_flag(-Wtautological-bitwise-compare)
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check_enable_debug_cxx_flag(-Wbitwise-conditional-parentheses)
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check_enable_debug_cxx_flag(-Wrange-loop-analysis)
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check_enable_debug_cxx_flag(-Wmisleading-indentation)
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check_enable_debug_cxx_flag(-Wc99-designator)
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check_enable_debug_cxx_flag(-Wreorder-init-list)
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check_enable_debug_cxx_flag(-Wsizeof-pointer-div)
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check_enable_debug_cxx_flag(-Wsizeof-array-div)
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check_enable_debug_cxx_flag(-Wxor-used-as-pow)
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check_enable_debug_cxx_flag(-Wfinal-dtor-non-final-class)
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endif()
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# Common configuration for GCC, clang and Intel.
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if(CMAKE_CXX_COMPILER_IS_CLANG OR CMAKE_CXX_COMPILER_IS_INTEL OR CMAKE_CXX_COMPILER_IS_GCC)
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check_enable_debug_cxx_flag(-Wall)
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check_enable_debug_cxx_flag(-Wextra)
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check_enable_debug_cxx_flag(-Wnon-virtual-dtor)
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check_enable_debug_cxx_flag(-Wnoexcept)
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check_enable_debug_cxx_flag(-Wlogical-op)
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check_enable_debug_cxx_flag(-Wconversion)
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check_enable_debug_cxx_flag(-Wdeprecated)
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# This limit is supposed to be at least 1024 in C++11, but for some reason
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# clang sets this to 256, and gcc to 900.
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check_enable_cxx_flag(-ftemplate-depth=1024)
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check_enable_debug_cxx_flag(-Wold-style-cast)
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check_enable_debug_cxx_flag(-Wdisabled-optimization)
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# This is useful when the compiler decides the template backtrace is too
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# verbose.
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check_enable_debug_cxx_flag(-ftemplate-backtrace-limit=0)
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check_enable_debug_cxx_flag(-fstack-protector-all)
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# A few suggestion flags.
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check_enable_debug_cxx_flag(-Wsuggest-attribute=pure)
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check_enable_debug_cxx_flag(-Wsuggest-attribute=const)
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check_enable_debug_cxx_flag(-Wsuggest-attribute=noreturn)
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check_enable_debug_cxx_flag(-Wsuggest-attribute=format)
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# From GCC 5.
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check_enable_debug_cxx_flag(-Wodr)
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check_enable_debug_cxx_flag(-Wsuggest-final-types)
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check_enable_debug_cxx_flag(-Wsuggest-final-methods)
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check_enable_debug_cxx_flag(-Wsuggest-override)
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# From GCC 6.
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check_enable_debug_cxx_flag(-Wshift-negative-value)
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check_enable_debug_cxx_flag(-Wshift-overflow=2)
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check_enable_debug_cxx_flag(-Wduplicated-cond)
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check_enable_debug_cxx_flag(-Wnull-dereference)
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# From GCC 7.
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check_enable_debug_cxx_flag(-Wrestrict)
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check_enable_debug_cxx_flag(-Waligned-new)
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check_enable_debug_cxx_flag(-fdiagnostics-parseable-fixits)
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check_enable_debug_cxx_flag(-fdiagnostics-generate-patch)
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# From GCC 8.
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check_enable_debug_cxx_flag(-Wcast-align=strict)
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# This is supposed to produce a nice graphical visualization of mismatching
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# template errors.
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check_enable_cxx_flag(-fdiagnostics-show-template-tree)
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check_enable_debug_cxx_flag(-fdiagnostics-show-option)
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check_enable_debug_cxx_flag(-pedantic)
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check_enable_debug_cxx_flag(-Wcast-align)
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check_enable_debug_cxx_flag(-Wcast-qual)
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check_enable_debug_cxx_flag(-Wctor-dtor-privacy)
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check_enable_debug_cxx_flag(-Wdisabled-optimization)
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check_enable_debug_cxx_flag(-Wformat=2)
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check_enable_debug_cxx_flag(-Winit-self)
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check_enable_debug_cxx_flag(-Wmissing-include-dirs)
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check_enable_debug_cxx_flag(-Woverloaded-virtual)
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check_enable_debug_cxx_flag(-Wredundant-decls)
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check_enable_debug_cxx_flag(-Wsign-promo)
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check_enable_debug_cxx_flag(-Wstrict-overflow=5)
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check_enable_debug_cxx_flag(-Wundef)
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check_enable_debug_cxx_flag(-Wno-unused)
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check_enable_debug_cxx_flag(-Wno-variadic-macros)
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check_enable_debug_cxx_flag(-Wno-parentheses)
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check_enable_debug_cxx_flag(-Wstrict-null-sentinel)
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check_enable_debug_cxx_flag(-Wshadow-all)
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endif()
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if(CMAKE_CXX_COMPILER_IS_GCC)
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check_enable_cxx_flag(-fdiagnostics-color=auto)
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# The -Wmaybe-uninitialized flag is enabled by -Wall,
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# but it is known to emit a lot of possibly spurious warnings.
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# Let's just disable it.
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check_enable_debug_cxx_flag(-Wno-maybe-uninitialized)
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# New in GCC 9.
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check_enable_debug_cxx_flag(-Waddress-of-packed-member)
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if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER "5.999")
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# NOTE: GCC >= 6 seems to be wrongly warning about visibility attributes
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# in some situations:
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# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80947
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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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endif()
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endif()
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# cmake-format: off
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if(LSB_DISTRIBUTOR_ID STREQUAL "AstraLinuxSE" AND
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LSB_CODENAME STREQUAL "smolensk" AND
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@ -76,91 +199,17 @@ 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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# Common configuration for GCC, clang and Intel.
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if(CMAKE_CXX_COMPILER_IS_CLANG OR CMAKE_CXX_COMPILER_IS_INTEL OR CMAKE_CXX_COMPILER_IS_GCC)
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if(CMLIB_WARNING_FLAGS AND CMAKE_BUILD_TYPE STREQUAL "Debug")
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check_enable_cxx_flag(-Wall)
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check_enable_cxx_flag(-Wextra)
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check_enable_cxx_flag(-Wnon-virtual-dtor)
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check_enable_cxx_flag(-Wnoexcept)
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check_enable_cxx_flag(-Wlogical-op)
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check_enable_cxx_flag(-Wconversion)
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check_enable_cxx_flag(-Wdeprecated)
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# This limit is supposed to be at least 1024 in C++11, but for some reason
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# clang sets this to 256, and gcc to 900.
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check_enable_cxx_flag(-ftemplate-depth=1024)
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check_enable_cxx_flag(-Wold-style-cast)
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check_enable_cxx_flag(-Wdisabled-optimization)
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# This is useful when the compiler decides the template backtrace is too
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# verbose.
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check_enable_cxx_flag(-ftemplate-backtrace-limit=0)
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check_enable_cxx_flag(-fstack-protector-all)
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# A few suggestion flags.
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check_enable_cxx_flag(-Wsuggest-attribute=pure)
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check_enable_cxx_flag(-Wsuggest-attribute=const)
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check_enable_cxx_flag(-Wsuggest-attribute=noreturn)
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check_enable_cxx_flag(-Wsuggest-attribute=format)
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# From GCC 5.
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check_enable_cxx_flag(-Wodr)
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check_enable_cxx_flag(-Wsuggest-final-types)
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check_enable_cxx_flag(-Wsuggest-final-methods)
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check_enable_cxx_flag(-Wsuggest-override)
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# From GCC 6.
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check_enable_cxx_flag(-Wshift-negative-value)
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check_enable_cxx_flag(-Wshift-overflow=2)
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check_enable_cxx_flag(-Wduplicated-cond)
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check_enable_cxx_flag(-Wnull-dereference)
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# From GCC 7.
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check_enable_cxx_flag(-Wrestrict)
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check_enable_cxx_flag(-Waligned-new)
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# From GCC 8.
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check_enable_cxx_flag(-Wcast-align=strict)
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# This is supposed to produce a nice graphical visualization of mismatching
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# template errors.
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check_enable_cxx_flag(-fdiagnostics-show-template-tree)
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check_enable_cxx_flag(-fdiagnostics-show-option)
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check_enable_cxx_flag(-pedantic)
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check_enable_cxx_flag(-Wcast-align)
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check_enable_cxx_flag(-Wcast-qual)
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check_enable_cxx_flag(-Wctor-dtor-privacy)
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check_enable_cxx_flag(-Wdisabled-optimization)
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check_enable_cxx_flag(-Wformat=2)
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check_enable_cxx_flag(-Winit-self)
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check_enable_cxx_flag(-Wmissing-include-dirs)
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check_enable_cxx_flag(-Woverloaded-virtual)
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check_enable_cxx_flag(-Wredundant-decls)
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check_enable_cxx_flag(-Wsign-promo)
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check_enable_cxx_flag(-Wstrict-overflow=5)
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check_enable_cxx_flag(-Wundef)
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check_enable_cxx_flag(-Wno-unused)
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check_enable_cxx_flag(-Wno-variadic-macros)
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check_enable_cxx_flag(-Wno-parentheses)
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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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endif()
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endif()
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if(CMAKE_CXX_COMPILER_IS_GCC)
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check_enable_cxx_flag(-fdiagnostics-color=auto)
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# The -Wmaybe-uninitialized flag is enabled by -Wall,
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# but it is known to emit a lot of possibly spurious warnings.
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# Let's just disable it.
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check_enable_cxx_flag(-Wno-maybe-uninitialized)
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if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER "5.999")
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# NOTE: GCC >= 6 seems to be wrongly warning about visibility attributes
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# in some situations:
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# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80947
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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_debug_cxx_flag(-Wshadow)
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endif()
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endif()
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if(CMAKE_SYSTEM_PROCESSOR STREQUAL "e2k")
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check_enable_cxx_flag(-Wno-invalid-offsetof)
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check_enable_debug_cxx_flag(-Wno-invalid-offsetof)
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list(APPEND CMAKE_LIBRARY_PATH "/usr/lib/e2k-linux-gnu")
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endif()
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# Set the cache variables.
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set(CMLIB_DETECTED_CXX_FLAGS "${_CMLIB_DETECTED_CXX_FLAGS}" CACHE INTERNAL "")
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set(CMLIB_DETECTED_CXX_FLAGS_DEBUG "${_CMLIB_DETECTED_CXX_FLAGS_DEBUG}" CACHE INTERNAL "")
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set(CMLIB_CXX_FLAGS_AUTODETECTION_DONE YES CACHE INTERNAL "")
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endif()
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