cmake_minimum_required(VERSION 2.6) if(TEST_CPP) project("mbed TLS" C CXX) else() project("mbed TLS" C) endif() # Set the project root directory. set(MBEDTLS_DIR ${CMAKE_CURRENT_SOURCE_DIR}) option(ENABLE_PROGRAMS "Build mbed TLS programs." ON) option(UNSAFE_BUILD "Allow unsafe builds. These builds ARE NOT SECURE." OFF) string(REGEX MATCH "Clang" CMAKE_COMPILER_IS_CLANG "${CMAKE_C_COMPILER_ID}") string(REGEX MATCH "GNU" CMAKE_COMPILER_IS_GNU "${CMAKE_C_COMPILER_ID}") string(REGEX MATCH "IAR" CMAKE_COMPILER_IS_IAR "${CMAKE_C_COMPILER_ID}") string(REGEX MATCH "MSVC" CMAKE_COMPILER_IS_MSVC "${CMAKE_C_COMPILER_ID}") # the test suites currently have compile errors with MSVC if(CMAKE_COMPILER_IS_MSVC) option(ENABLE_TESTING "Build mbed TLS tests." OFF) else() option(ENABLE_TESTING "Build mbed TLS tests." ON) endif() # Warning string - created as a list for compatibility with CMake 2.8 set(WARNING_BORDER "*******************************************************\n") set(NULL_ENTROPY_WARN_L1 "**** WARNING! MBEDTLS_TEST_NULL_ENTROPY defined!\n") set(NULL_ENTROPY_WARN_L2 "**** THIS BUILD HAS NO DEFINED ENTROPY SOURCES\n") set(NULL_ENTROPY_WARN_L3 "**** AND IS *NOT* SUITABLE FOR PRODUCTION USE\n") set(NULL_ENTROPY_WARNING "${WARNING_BORDER}" "${NULL_ENTROPY_WARN_L1}" "${NULL_ENTROPY_WARN_L2}" "${NULL_ENTROPY_WARN_L3}" "${WARNING_BORDER}") set(CTR_DRBG_128_BIT_KEY_WARN_L1 "**** WARNING! MBEDTLS_CTR_DRBG_USE_128_BIT_KEY defined!\n") set(CTR_DRBG_128_BIT_KEY_WARN_L2 "**** Using 128-bit keys for CTR_DRBG limits the security of generated\n") set(CTR_DRBG_128_BIT_KEY_WARN_L3 "**** keys and operations that use random values generated to 128-bit security\n") set(CTR_DRBG_128_BIT_KEY_WARNING "${WARNING_BORDER}" "${CTR_DRBG_128_BIT_KEY_WARN_L1}" "${CTR_DRBG_128_BIT_KEY_WARN_L2}" "${CTR_DRBG_128_BIT_KEY_WARN_L3}" "${WARNING_BORDER}") # Python 3 is only needed here to check for configuration warnings. find_package(PythonInterp 3) if(PYTHONINTERP_FOUND) # If 128-bit keys are configured for CTR_DRBG, display an appropriate warning execute_process(COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/scripts/config.py -f ${CMAKE_CURRENT_SOURCE_DIR}/include/mbedtls/config.h get MBEDTLS_CTR_DRBG_USE_128_BIT_KEY RESULT_VARIABLE result) if(${result} EQUAL 0) message(WARNING ${CTR_DRBG_128_BIT_KEY_WARNING}) endif() # If NULL Entropy is configured, display an appropriate warning execute_process(COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/scripts/config.py -f ${CMAKE_CURRENT_SOURCE_DIR}/include/mbedtls/config.h get MBEDTLS_TEST_NULL_ENTROPY RESULT_VARIABLE result) if(${result} EQUAL 0) message(WARNING ${NULL_ENTROPY_WARNING}) if(NOT UNSAFE_BUILD) message(FATAL_ERROR "\ \n\ Warning! You have enabled MBEDTLS_TEST_NULL_ENTROPY. \ This option is not safe for production use and negates all security \ It is intended for development use only. \ \n\ To confirm you want to build with this option, re-run cmake with the \ option: \n\ cmake -DUNSAFE_BUILD=ON ") return() endif() endif() endif() set(CMAKE_BUILD_TYPE ${CMAKE_BUILD_TYPE} CACHE STRING "Choose the type of build: None Debug Release Coverage ASan ASanDbg MemSan MemSanDbg Check CheckFull" FORCE) # Create a symbolic link from ${base_name} in the binary directory # to the corresponding path in the source directory. function(link_to_source base_name) # Get OS dependent path to use in `execute_process` if (CMAKE_HOST_WIN32) #mklink is an internal command of cmd.exe it can only work with \ string(REPLACE "/" "\\" link "${CMAKE_CURRENT_BINARY_DIR}/${base_name}") string(REPLACE "/" "\\" target "${CMAKE_CURRENT_SOURCE_DIR}/${base_name}") else() set(link "${CMAKE_CURRENT_BINARY_DIR}/${base_name}") set(target "${CMAKE_CURRENT_SOURCE_DIR}/${base_name}") endif() if (NOT EXISTS ${link}) if (CMAKE_HOST_UNIX) set(command ln -s ${target} ${link}) else() if (IS_DIRECTORY ${target}) set(command cmd.exe /c mklink /j ${link} ${target}) else() set(command cmd.exe /c mklink /h ${link} ${target}) endif() endif() execute_process(COMMAND ${command} RESULT_VARIABLE result ERROR_VARIABLE output) if (NOT ${result} EQUAL 0) message(FATAL_ERROR "Could not create symbolic link for: ${target} --> ${output}") endif() endif() endfunction(link_to_source) string(REGEX MATCH "Clang" CMAKE_COMPILER_IS_CLANG "${CMAKE_C_COMPILER_ID}") if(CMAKE_COMPILER_IS_GNU) # some warnings we want are not available with old GCC versions # note: starting with CMake 2.8 we could use CMAKE_C_COMPILER_VERSION execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION) set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wwrite-strings") if (GCC_VERSION VERSION_GREATER 4.3 OR GCC_VERSION VERSION_EQUAL 4.3) set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wvla") endif() if (GCC_VERSION VERSION_GREATER 4.5 OR GCC_VERSION VERSION_EQUAL 4.5) set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wlogical-op") endif() if (GCC_VERSION VERSION_GREATER 4.8 OR GCC_VERSION VERSION_EQUAL 4.8) set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wshadow") endif() set(CMAKE_C_FLAGS_RELEASE "-O2") set(CMAKE_C_FLAGS_DEBUG "-O0 -g3") set(CMAKE_C_FLAGS_COVERAGE "-O0 -g3 --coverage") set(CMAKE_C_FLAGS_ASAN "-Werror -fsanitize=address -fno-common -fsanitize=undefined -fno-sanitize-recover=all -O3") set(CMAKE_C_FLAGS_ASANDBG "-Werror -fsanitize=address -fno-common -fsanitize=undefined -fno-sanitize-recover=all -O1 -g3 -fno-omit-frame-pointer -fno-optimize-sibling-calls") set(CMAKE_C_FLAGS_CHECK "-Werror -Os") set(CMAKE_C_FLAGS_CHECKFULL "${CMAKE_C_FLAGS_CHECK} -Wcast-qual") endif(CMAKE_COMPILER_IS_GNU) if(CMAKE_COMPILER_IS_CLANG) set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wwrite-strings -Wpointer-arith -Wimplicit-fallthrough -Wshadow -Wvla") set(CMAKE_C_FLAGS_RELEASE "-O2") set(CMAKE_C_FLAGS_DEBUG "-O0 -g3") set(CMAKE_C_FLAGS_COVERAGE "-O0 -g3 --coverage") set(CMAKE_C_FLAGS_ASAN "-Werror -fsanitize=address -fno-common -fsanitize=undefined -fno-sanitize-recover=all -O3") set(CMAKE_C_FLAGS_ASANDBG "-Werror -fsanitize=address -fno-common -fsanitize=undefined -fno-sanitize-recover=all -O1 -g3 -fno-omit-frame-pointer -fno-optimize-sibling-calls") set(CMAKE_C_FLAGS_MEMSAN "-Werror -fsanitize=memory -O3") set(CMAKE_C_FLAGS_MEMSANDBG "-Werror -fsanitize=memory -O1 -g3 -fno-omit-frame-pointer -fno-optimize-sibling-calls -fsanitize-memory-track-origins=2") set(CMAKE_C_FLAGS_CHECK "-Werror -Os") endif(CMAKE_COMPILER_IS_CLANG) if(CMAKE_COMPILER_IS_IAR) set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} --warn_about_c_style_casts --warnings_are_errors -Ohz") endif(CMAKE_COMPILER_IS_IAR) if(CMAKE_COMPILER_IS_MSVC) # Strictest warnings, and treat as errors set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /W3") set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /WX") endif(CMAKE_COMPILER_IS_MSVC) if(CMAKE_BUILD_TYPE STREQUAL "Coverage") if(CMAKE_COMPILER_IS_GNU OR CMAKE_COMPILER_IS_CLANG) set(CMAKE_SHARED_LINKER_FLAGS "--coverage") endif(CMAKE_COMPILER_IS_GNU OR CMAKE_COMPILER_IS_CLANG) endif(CMAKE_BUILD_TYPE STREQUAL "Coverage") if(LIB_INSTALL_DIR) else() set(LIB_INSTALL_DIR lib) endif() include_directories(include/) include_directories(library/) add_subdirectory(include) add_subdirectory(3rdparty) include_directories(${thirdparty_inc}) list(APPEND libs ${thirdparty_lib}) add_definitions(${thirdparty_def}) add_subdirectory(library) if(ENABLE_PROGRAMS) add_subdirectory(programs) endif() ADD_CUSTOM_TARGET(apidoc COMMAND doxygen mbedtls.doxyfile WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/doxygen) if(ENABLE_TESTING) enable_testing() add_subdirectory(tests) # additional convenience targets for Unix only if(UNIX) ADD_CUSTOM_TARGET(covtest COMMAND make test COMMAND programs/test/selftest ) ADD_CUSTOM_TARGET(lcov COMMAND rm -rf Coverage COMMAND lcov --capture --initial --directory library/CMakeFiles/mbedtls.dir -o files.info COMMAND lcov --capture --directory library/CMakeFiles/mbedtls.dir -o tests.info COMMAND lcov --add-tracefile files.info --add-tracefile tests.info -o all.info COMMAND lcov --remove all.info -o final.info '*.h' COMMAND gendesc tests/Descriptions.txt -o descriptions COMMAND genhtml --title "mbed TLS" --description-file descriptions --keep-descriptions --legend --no-branch-coverage -o Coverage final.info COMMAND rm -f files.info tests.info all.info final.info descriptions ) ADD_CUSTOM_TARGET(memcheck COMMAND sed -i.bak s+/usr/bin/valgrind+`which valgrind`+ DartConfiguration.tcl COMMAND ctest -O memcheck.log -D ExperimentalMemCheck COMMAND tail -n1 memcheck.log | grep 'Memory checking results:' > /dev/null COMMAND rm -f memcheck.log COMMAND mv DartConfiguration.tcl.bak DartConfiguration.tcl ) endif(UNIX) # Make scripts needed for testing available in an out-of-source build. if (NOT ${CMAKE_CURRENT_BINARY_DIR} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}) link_to_source(scripts) # Copy (don't link) DartConfiguration.tcl, needed for memcheck, to # keep things simple with the sed commands in the memcheck target. configure_file(${CMAKE_CURRENT_SOURCE_DIR}/DartConfiguration.tcl ${CMAKE_CURRENT_BINARY_DIR}/DartConfiguration.tcl COPYONLY) endif() endif()