diff options
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 135 |
1 files changed, 94 insertions, 41 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 1007254..ffd7dee 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -1,30 +1,34 @@ -cmake_minimum_required (VERSION 3.5.1) - -foreach(p - CMP0048 # OK to clear PROJECT_VERSION on project() - CMP0054 # CMake 3.1 - CMP0056 # export EXE_LINKER_FLAGS to try_run - CMP0057 # Support no if() IN_LIST operator - CMP0063 # Honor visibility properties for all targets - CMP0077 # Allow option() overrides in importing projects - ) - if(POLICY ${p}) - cmake_policy(SET ${p} NEW) - endif() -endforeach() +# Require CMake 3.10. If available, use the policies up to CMake 3.22. +cmake_minimum_required (VERSION 3.10...3.22) -project (benchmark CXX) +project (benchmark VERSION 1.8.3 LANGUAGES CXX) option(BENCHMARK_ENABLE_TESTING "Enable testing of the benchmark library." ON) option(BENCHMARK_ENABLE_EXCEPTIONS "Enable the use of exceptions in the benchmark library." ON) option(BENCHMARK_ENABLE_LTO "Enable link time optimisation of the benchmark library." OFF) option(BENCHMARK_USE_LIBCXX "Build and test using libc++ as the standard library." OFF) +option(BENCHMARK_ENABLE_WERROR "Build Release candidates with -Werror." ON) +option(BENCHMARK_FORCE_WERROR "Build Release candidates with -Werror regardless of compiler issues." OFF) + +if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "PGI") + # PGC++ maybe reporting false positives. + set(BENCHMARK_ENABLE_WERROR OFF) +endif() +if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "NVHPC") + set(BENCHMARK_ENABLE_WERROR OFF) +endif() +if(BENCHMARK_FORCE_WERROR) + set(BENCHMARK_ENABLE_WERROR ON) +endif(BENCHMARK_FORCE_WERROR) + if(NOT MSVC) option(BENCHMARK_BUILD_32_BITS "Build a 32 bit version of the library." OFF) else() set(BENCHMARK_BUILD_32_BITS OFF CACHE BOOL "Build a 32 bit version of the library - unsupported when using MSVC)" FORCE) endif() option(BENCHMARK_ENABLE_INSTALL "Enable installation of benchmark. (Projects embedding benchmark may want to turn this OFF.)" ON) +option(BENCHMARK_ENABLE_DOXYGEN "Build documentation with Doxygen." OFF) +option(BENCHMARK_INSTALL_DOCS "Enable installation of documentation." ON) # Allow unmet dependencies to be met using CMake's ExternalProject mechanics, which # may require downloading the source code. @@ -33,8 +37,25 @@ option(BENCHMARK_DOWNLOAD_DEPENDENCIES "Allow the downloading and in-tree buildi # This option can be used to disable building and running unit tests which depend on gtest # in cases where it is not possible to build or find a valid version of gtest. option(BENCHMARK_ENABLE_GTEST_TESTS "Enable building the unit tests which depend on gtest" ON) +option(BENCHMARK_USE_BUNDLED_GTEST "Use bundled GoogleTest. If disabled, the find_package(GTest) will be used." ON) + +option(BENCHMARK_ENABLE_LIBPFM "Enable performance counters provided by libpfm" OFF) + +# Export only public symbols +set(CMAKE_CXX_VISIBILITY_PRESET hidden) +set(CMAKE_VISIBILITY_INLINES_HIDDEN ON) + +if(MSVC) + # As of CMake 3.18, CMAKE_SYSTEM_PROCESSOR is not set properly for MSVC and + # cross-compilation (e.g. Host=x86_64, target=aarch64) requires using the + # undocumented, but working variable. + # See https://gitlab.kitware.com/cmake/cmake/-/issues/15170 + set(CMAKE_SYSTEM_PROCESSOR ${MSVC_CXX_ARCHITECTURE_ID}) + if(${CMAKE_SYSTEM_PROCESSOR} MATCHES "ARM") + set(CMAKE_CROSSCOMPILING TRUE) + endif() +endif() -set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON) set(ENABLE_ASSEMBLY_TESTS_DEFAULT OFF) function(should_enable_assembly_tests) if(CMAKE_BUILD_TYPE) @@ -81,24 +102,43 @@ list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake") include(GetGitVersion) get_git_version(GIT_VERSION) +# If no git version can be determined, use the version +# from the project() command +if ("${GIT_VERSION}" STREQUAL "0.0.0") + set(VERSION "${benchmark_VERSION}") +else() + set(VERSION "${GIT_VERSION}") +endif() # Tell the user what versions we are using -string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" VERSION ${GIT_VERSION}) -message(STATUS "Version: ${VERSION}") +message(STATUS "Google Benchmark version: ${VERSION}") # The version of the libraries set(GENERIC_LIB_VERSION ${VERSION}) string(SUBSTRING ${VERSION} 0 1 GENERIC_LIB_SOVERSION) # Import our CMake modules -include(CheckCXXCompilerFlag) include(AddCXXCompilerFlag) +include(CheckCXXCompilerFlag) +include(CheckLibraryExists) include(CXXFeatureCheck) +check_library_exists(rt shm_open "" HAVE_LIB_RT) + if (BENCHMARK_BUILD_32_BITS) add_required_cxx_compiler_flag(-m32) endif() if (MSVC) + set(BENCHMARK_CXX_STANDARD 14) +else() + set(BENCHMARK_CXX_STANDARD 11) +endif() + +set(CMAKE_CXX_STANDARD ${BENCHMARK_CXX_STANDARD}) +set(CMAKE_CXX_STANDARD_REQUIRED YES) +set(CMAKE_CXX_EXTENSIONS OFF) + +if (MSVC) # Turn compiler warnings up to 11 string(REGEX REPLACE "[-/]W[1-4]" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4") @@ -130,44 +170,43 @@ if (MSVC) set(CMAKE_EXE_LINKER_FLAGS_MINSIZEREL "${CMAKE_EXE_LINKER_FLAGS_MINSIZEREL} /LTCG") endif() else() - # Try and enable C++11. Don't use C++14 because it doesn't work in some - # configurations. - add_cxx_compiler_flag(-std=c++11) - if (NOT HAVE_CXX_FLAG_STD_CXX11) - add_cxx_compiler_flag(-std=c++0x) - endif() - # Turn compiler warnings up to 11 add_cxx_compiler_flag(-Wall) add_cxx_compiler_flag(-Wextra) add_cxx_compiler_flag(-Wshadow) - add_cxx_compiler_flag(-Werror RELEASE) - add_cxx_compiler_flag(-Werror RELWITHDEBINFO) - add_cxx_compiler_flag(-Werror MINSIZEREL) - # Disabled until googletest (gmock) stops emitting variadic macro warnings - #add_cxx_compiler_flag(-pedantic) - #add_cxx_compiler_flag(-pedantic-errors) + add_cxx_compiler_flag(-Wfloat-equal) + add_cxx_compiler_flag(-Wold-style-cast) + if(BENCHMARK_ENABLE_WERROR) + add_cxx_compiler_flag(-Werror) + endif() + if (NOT BENCHMARK_ENABLE_TESTING) + # Disable warning when compiling tests as gtest does not use 'override'. + add_cxx_compiler_flag(-Wsuggest-override) + endif() + add_cxx_compiler_flag(-pedantic) + add_cxx_compiler_flag(-pedantic-errors) add_cxx_compiler_flag(-Wshorten-64-to-32) add_cxx_compiler_flag(-fstrict-aliasing) # Disable warnings regarding deprecated parts of the library while building # and testing those parts of the library. add_cxx_compiler_flag(-Wno-deprecated-declarations) - if (CMAKE_CXX_COMPILER_ID STREQUAL "Intel") + if (CMAKE_CXX_COMPILER_ID STREQUAL "Intel" OR CMAKE_CXX_COMPILER_ID STREQUAL "IntelLLVM") # Intel silently ignores '-Wno-deprecated-declarations', # warning no. 1786 must be explicitly disabled. # See #631 for rationale. add_cxx_compiler_flag(-wd1786) + add_cxx_compiler_flag(-fno-finite-math-only) endif() # Disable deprecation warnings for release builds (when -Werror is enabled). - add_cxx_compiler_flag(-Wno-deprecated RELEASE) - add_cxx_compiler_flag(-Wno-deprecated RELWITHDEBINFO) - add_cxx_compiler_flag(-Wno-deprecated MINSIZEREL) + if(BENCHMARK_ENABLE_WERROR) + add_cxx_compiler_flag(-Wno-deprecated) + endif() if (NOT BENCHMARK_ENABLE_EXCEPTIONS) add_cxx_compiler_flag(-fno-exceptions) endif() if (HAVE_CXX_FLAG_FSTRICT_ALIASING) - if (NOT CMAKE_CXX_COMPILER_ID STREQUAL "Intel") #ICC17u2: Many false positives for Wstrict-aliasing + if (NOT CMAKE_CXX_COMPILER_ID STREQUAL "Intel" AND NOT CMAKE_CXX_COMPILER_ID STREQUAL "IntelLLVM") #ICC17u2: Many false positives for Wstrict-aliasing add_cxx_compiler_flag(-Wstrict-aliasing) endif() endif() @@ -176,12 +215,12 @@ else() add_cxx_compiler_flag(-wd654) add_cxx_compiler_flag(-Wthread-safety) if (HAVE_CXX_FLAG_WTHREAD_SAFETY) - cxx_feature_check(THREAD_SAFETY_ATTRIBUTES) + cxx_feature_check(THREAD_SAFETY_ATTRIBUTES "-DINCLUDE_DIRECTORIES=${PROJECT_SOURCE_DIR}/include") endif() # On most UNIX like platforms g++ and clang++ define _GNU_SOURCE as a # predefined macro, which turns on all of the wonderful libc extensions. - # However g++ doesn't do this in Cygwin so we have to define it ourselfs + # However g++ doesn't do this in Cygwin so we have to define it ourselves # since we depend on GNU/POSIX/BSD extensions. if (CYGWIN) add_definitions(-D_GNU_SOURCE=1) @@ -232,7 +271,8 @@ if (BENCHMARK_USE_LIBCXX) if ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang") add_cxx_compiler_flag(-stdlib=libc++) elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" OR - "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Intel") + "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Intel" OR + "${CMAKE_CXX_COMPILER_ID}" STREQUAL "IntelLLVM") add_cxx_compiler_flag(-nostdinc++) message(WARNING "libc++ header path must be manually specified using CMAKE_CXX_FLAGS") # Adding -nodefaultlibs directly to CMAKE_<TYPE>_LINKER_FLAGS will break @@ -269,6 +309,11 @@ cxx_feature_check(STEADY_CLOCK) # Ensure we have pthreads set(THREADS_PREFER_PTHREAD_FLAG ON) find_package(Threads REQUIRED) +cxx_feature_check(PTHREAD_AFFINITY) + +if (BENCHMARK_ENABLE_LIBPFM) + find_package(PFM) +endif() # Set up directories include_directories(${PROJECT_SOURCE_DIR}/include) @@ -281,7 +326,15 @@ if (BENCHMARK_ENABLE_TESTING) if (BENCHMARK_ENABLE_GTEST_TESTS AND NOT (TARGET gtest AND TARGET gtest_main AND TARGET gmock AND TARGET gmock_main)) - include(GoogleTest) + if (BENCHMARK_USE_BUNDLED_GTEST) + include(GoogleTest) + else() + find_package(GTest CONFIG REQUIRED) + add_library(gtest ALIAS GTest::gtest) + add_library(gtest_main ALIAS GTest::gtest_main) + add_library(gmock ALIAS GTest::gmock) + add_library(gmock_main ALIAS GTest::gmock_main) + endif() endif() add_subdirectory(test) endif() |