forked from OSchip/llvm-project
156 lines
4.4 KiB
CMake
156 lines
4.4 KiB
CMake
find_package(Threads)
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include(ExternalProject)
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set(LLVM_LINK_COMPONENTS Support)
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#==============================================================================
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# Build Google Benchmark
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#==============================================================================
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set(GOOGLE_BENCHMARK_TARGET_FLAGS ${BENCHMARK_DIALECT_FLAG})
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if (LIBCXX_BENCHMARK_GCC_TOOLCHAIN)
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set(GOOGLE_BENCHMARK_TARGET_FLAGS
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-gcc-toolchain ${LIBCXX_BENCHMARK_GCC_TOOLCHAIN})
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endif()
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string(REPLACE ";" " " GOOGLE_BENCHMARK_TARGET_FLAGS "${GOOGLE_BENCHMARK_TARGET_FLAGS}")
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ExternalProject_Add(google-benchmark
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EXCLUDE_FROM_ALL ON
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PREFIX google-benchmark
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SOURCE_DIR ${LIBC_SOURCE_DIR}/../llvm/utils/benchmark
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INSTALL_DIR ${CMAKE_CURRENT_BINARY_DIR}/google-benchmark
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CMAKE_CACHE_ARGS
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-DBUILD_SHARED_LIBS:BOOL=OFF
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-DCMAKE_POSITION_INDEPENDENT_CODE:BOOL=ON
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-DCMAKE_C_COMPILER:STRING=${CMAKE_C_COMPILER}
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-DCMAKE_CXX_COMPILER:STRING=${CMAKE_CXX_COMPILER}
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-DCMAKE_CXX_FLAGS:STRING=${GOOGLE_BENCHMARK_TARGET_FLAGS}
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-DCMAKE_CXX_STANDARD:STRING=14
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-DCMAKE_BUILD_TYPE:STRING=RELEASE
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-DCMAKE_INSTALL_PREFIX:PATH=<INSTALL_DIR>
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-DBENCHMARK_ENABLE_TESTING:BOOL=OFF)
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set(GOOGLE_BENCHMARK_LIBC_INSTALL ${CMAKE_CURRENT_BINARY_DIR}/google-benchmark)
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set(GOOGLE_BENCHMARK_LINK_FLAGS -L${GOOGLE_BENCHMARK_LIBC_INSTALL}/lib/)
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#==============================================================================
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# Add Unit Testing Support
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#==============================================================================
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function(add_libc_benchmark_unittest target_name)
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if(NOT LLVM_INCLUDE_TESTS)
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return()
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endif()
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cmake_parse_arguments(
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"LIBC_BENCHMARKS_UNITTEST"
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"" # No optional arguments
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"SUITE" # Single value arguments
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"SRCS;DEPENDS" # Multi-value arguments
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${ARGN}
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)
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add_executable(${target_name}
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EXCLUDE_FROM_ALL
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${LIBC_BENCHMARKS_UNITTEST_SRCS}
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)
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target_link_libraries(${target_name}
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PRIVATE
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gtest_main
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gtest
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${LIBC_BENCHMARKS_UNITTEST_DEPENDS}
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)
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add_custom_command(
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TARGET ${target_name}
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POST_BUILD
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COMMAND $<TARGET_FILE:${target_name}>
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)
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add_dependencies(libc-benchmark-util-tests ${target_name})
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endfunction()
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#==============================================================================
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# Build Google Benchmark for libc
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#==============================================================================
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add_custom_target(libc-benchmark-util-tests)
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function(fix_rtti target)
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# TODO: Make this portable and inline with rtti mode from llvm/
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target_compile_options(${target} PUBLIC -fno-rtti)
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endfunction()
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# libc-benchmark
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add_library(libc-benchmark
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STATIC
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EXCLUDE_FROM_ALL
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LibcBenchmark.cpp
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LibcBenchmark.h
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)
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add_dependencies(libc-benchmark google-benchmark)
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target_include_directories(libc-benchmark
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SYSTEM PUBLIC
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"${GOOGLE_BENCHMARK_LIBC_INSTALL}/include"
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)
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target_link_libraries(libc-benchmark
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PUBLIC
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"${GOOGLE_BENCHMARK_LINK_FLAGS}" # FIXME: Move to `target_link_options`
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-lbenchmark # FIXME: Move to `target_link_options`
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LLVMSupport
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Threads::Threads
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)
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fix_rtti(libc-benchmark)
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add_libc_benchmark_unittest(libc-benchmark-test
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SRCS LibcBenchmarkTest.cpp
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DEPENDS libc-benchmark
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)
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# libc-memory-benchmark
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add_library(libc-memory-benchmark
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STATIC
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EXCLUDE_FROM_ALL
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LibcMemoryBenchmark.cpp
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LibcMemoryBenchmark.h
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MemorySizeDistributions.cpp
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MemorySizeDistributions.h
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)
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target_link_libraries(libc-memory-benchmark
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PUBLIC
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libc-benchmark
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)
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fix_rtti(libc-memory-benchmark)
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add_libc_benchmark_unittest(libc-memory-benchmark-test
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SRCS LibcMemoryBenchmarkTest.cpp
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DEPENDS libc-memory-benchmark
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)
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# json
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add_library(json
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STATIC
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EXCLUDE_FROM_ALL
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JSON.cpp
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JSON.h
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)
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target_link_libraries(json PUBLIC libc-memory-benchmark)
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fix_rtti(json)
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add_libc_benchmark_unittest(json-test
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SRCS JSONTest.cpp
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DEPENDS json
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)
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#==============================================================================
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# Benchmarking tool
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#==============================================================================
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add_executable(libc-benchmark-main
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EXCLUDE_FROM_ALL
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LibcMemoryBenchmarkMain.cpp
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)
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foreach(entrypoint_target libc.src.string.memcpy libc.src.string.memset)
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get_target_property(entrypoint_object_file ${entrypoint_target} "OBJECT_FILE_RAW")
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target_link_libraries(libc-benchmark-main PUBLIC json ${entrypoint_object_file})
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endforeach()
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