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###############################################################################
# Testing
###############################################################################
option(ENABLE_TESTING "Enable testing" OFF)
if(ENABLE_TESTING)
find_program(VALGRIND_BINARY NAMES valgrind)
# generate custom suppression file
file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/lammps.supp "\n")
file(GLOB VALGRIND_SUPPRESSION_FILES CONFIGURE_DEPENDS ${LAMMPS_TOOLS_DIR}/valgrind/[^.]*.supp)
foreach(SUPP ${VALGRIND_SUPPRESSION_FILES})
file(READ ${SUPP} SUPPRESSIONS)
file(APPEND ${CMAKE_CURRENT_BINARY_DIR}/lammps.supp "${SUPPRESSIONS}")
endforeach()
set(VALGRIND_DEFAULT_OPTIONS "--leak-check=full --show-leak-kinds=all --track-origins=yes --suppressions=${CMAKE_BINARY_DIR}/lammps.supp")
set(MEMORYCHECK_COMMAND "${VALGRIND_BINARY}" CACHE FILEPATH "Memory Check Command")
set(MEMORYCHECK_COMMAND_OPTIONS "${VALGRIND_DEFAULT_OPTIONS}" CACHE STRING "Memory Check Command Options")
# we need to build and link a LOT of tester executables, so it is worth checking if
# a faster linker is available. requires GNU or Clang compiler, newer CMake.
# also only verified with Fedora Linux > 30 and Ubuntu 18.04 or 22.04+(Ubuntu 20.04 fails)
if((CMAKE_SYSTEM_NAME STREQUAL "Linux")
AND ((CMAKE_CXX_COMPILER_ID STREQUAL "GNU") OR (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")))
if(((CMAKE_LINUX_DISTRO STREQUAL "Ubuntu") AND
((CMAKE_DISTRO_VERSION VERSION_LESS_EQUAL 18.04) OR (CMAKE_DISTRO_VERSION VERSION_GREATER_EQUAL 22.04)))
OR ((CMAKE_LINUX_DISTRO STREQUAL "Fedora") AND (CMAKE_DISTRO_VERSION VERSION_GREATER 30)))
include(CheckCXXCompilerFlag)
set(CMAKE_CUSTOM_LINKER_DEFAULT default)
check_cxx_compiler_flag(-fuse-ld=mold HAVE_MOLD_LINKER_FLAG)
check_cxx_compiler_flag(-fuse-ld=lld HAVE_LLD_LINKER_FLAG)
check_cxx_compiler_flag(-fuse-ld=gold HAVE_GOLD_LINKER_FLAG)
check_cxx_compiler_flag(-fuse-ld=bfd HAVE_BFD_LINKER_FLAG)
find_program(HAVE_MOLD_LINKER_BIN ld.mold)
find_program(HAVE_LLD_LINKER_BIN lld ld.lld)
find_program(HAVE_GOLD_LINKER_BIN ld.gold)
find_program(HAVE_BFD_LINKER_BIN ld.bfd)
if(HAVE_MOLD_LINKER_FLAG AND HAVE_MOLD_LINKER_BIN)
set(CMAKE_CUSTOM_LINKER_DEFAULT mold)
elseif(HAVE_LLD_LINKER_FLAG AND HAVE_LLD_LINKER_BIN)
set(CMAKE_CUSTOM_LINKER_DEFAULT lld)
elseif(HAVE_GOLD_LINKER_FLAG AND HAVE_GOLD_LINKER_BIN)
set(CMAKE_CUSTOM_LINKER_DEFAULT gold)
elseif(HAVE_BFD_LINKER_FLAG AND HAVE_BFD_LINKER_BIN)
set(CMAKE_CUSTOM_LINKER_DEFAULT bfd)
endif()
set(CMAKE_CUSTOM_LINKER_VALUES mold lld gold bfd default)
set(CMAKE_CUSTOM_LINKER ${CMAKE_CUSTOM_LINKER_DEFAULT} CACHE STRING "Choose a custom linker for faster linking (mold, lld, gold, bfd, default)")
validate_option(CMAKE_CUSTOM_LINKER CMAKE_CUSTOM_LINKER_VALUES)
mark_as_advanced(CMAKE_CUSTOM_LINKER)
if(NOT "${CMAKE_CUSTOM_LINKER}" STREQUAL "default")
target_link_options(lammps PUBLIC -fuse-ld=${CMAKE_CUSTOM_LINKER})
endif()
endif()
endif()
include(CTest)
enable_testing()
get_filename_component(LAMMPS_UNITTEST_DIR ${LAMMPS_SOURCE_DIR}/../unittest ABSOLUTE)
get_filename_component(LAMMPS_UNITTEST_BIN ${CMAKE_BINARY_DIR}/unittest ABSOLUTE)
add_subdirectory(${LAMMPS_UNITTEST_DIR} ${LAMMPS_UNITTEST_BIN})
endif()
# Compiler specific features for testing
if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
option(ENABLE_COVERAGE "Enable collecting code coverage data" OFF)
mark_as_advanced(ENABLE_COVERAGE)
if(ENABLE_COVERAGE)
target_compile_options(lammps PUBLIC --coverage)
target_link_options(lammps PUBLIC --coverage)
endif()
endif()
#######################################
# add custom target for IWYU analysis
#######################################
set(ENABLE_IWYU OFF CACHE BOOL "Add 'iwyu' build target to call the include-what-you-use tool")
mark_as_advanced(ENABLE_IWYU)
if(ENABLE_IWYU)
# enforce these settings
set(CMAKE_EXPORT_COMPILE_COMMANDS ON CACHE BOOL "Enable reporting compilation commands to compile_commands.json" FORCE)
if(NOT ((CMAKE_CXX_COMPILER_ID STREQUAL "Clang") OR (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")))
message(FATAL_ERROR "IWYU is only supported with Clang or GNU compilers")
endif()
# detect the "native" header folder so we can include them first
execute_process(COMMAND ${CMAKE_CXX_COMPILER} --print-search-dirs OUTPUT_VARIABLE IWYU_SEARCH_PATHS)
string(REGEX REPLACE ".*libraries: *=([^:]+):.*" "\\1/include" IWYU_EXTRA_INCLUDE_DIR ${IWYU_SEARCH_PATHS})
find_program(IWYU_EXE NAMES include-what-you-use iwyu)
find_program(IWYU_TOOL NAMES iwyu_tool iwyu-tool iwyu_tool.py)
if(IWYU_EXE AND IWYU_TOOL)
add_custom_target(
iwyu
${IWYU_TOOL} -o clang -p ${CMAKE_CURRENT_BINARY_DIR} -- -I${IWYU_EXTRA_INCLUDE_DIR} -Xiwyu --mapping_file=${CMAKE_CURRENT_SOURCE_DIR}/iwyu/iwyu-extra-map.imp
COMMENT "Running IWYU")
add_dependencies(iwyu lammps)
else()
message(FATAL_ERROR "To use IWYU you need the include-what-you-use/iwyu executable"
"and the iwyu-tool/iwyu_tool script installed in your PATH")
endif()
endif()
#######################################
# select code sanitizer options
#######################################
set(ENABLE_SANITIZER "none" CACHE STRING "Select a code sanitizer option (none (default), address, hwaddress, leak, thread, undefined)")
mark_as_advanced(ENABLE_SANITIZER)
set(ENABLE_SANITIZER_VALUES none address hwaddress leak thread undefined)
set_property(CACHE ENABLE_SANITIZER PROPERTY STRINGS ${ENABLE_SANITIZER_VALUES})
validate_option(ENABLE_SANITIZER ENABLE_SANITIZER_VALUES)
string(TOLOWER ${ENABLE_SANITIZER} ENABLE_SANITIZER)
if(NOT ENABLE_SANITIZER STREQUAL "none")
if((${CMAKE_CXX_COMPILER_ID} STREQUAL "GNU") OR (${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang"))
target_compile_options(lammps PUBLIC -fsanitize=${ENABLE_SANITIZER})
target_link_options(lammps PUBLIC -fsanitize=${ENABLE_SANITIZER})
else()
message(WARNING "ENABLE_SANITIZER option not supported by ${CMAKE_CXX_COMPILER_ID} compilers. Ignoring.")
set(ENABLE_SANITIZER "none")
endif()
endif()
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