mbedtls/CMakeLists.txt
Ronald Cron ddaf99c9d4 build: Add top-level mbedtls_test target
In preparation of linking common test objects in programs,
add the top-level mbedtls_test target.

This target consists of the common test objects.

It is necessary to declare it at the top-level as both
tests and programs will depend on it and it is necessary
to synchronize the compilation of those objects for tests
and programs for the case of parallel building.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-06-26 10:45:09 +02:00

302 lines
12 KiB
CMake

#
# CMake build system design considerations:
#
# - Include directories:
# + Do not define include directories globally using the include_directories
# command but rather at the target level using the
# target_include_directories command. That way, it is easier to guarantee
# that targets are built using the proper list of include directories.
# + Use the PUBLIC and PRIVATE keywords to specifiy the scope of include
# directories. That way, a target linking to a library (using the
# target_link_librairies command) inherits from the library PUBLIC include
# directories and not from the PRIVATE ones.
# + Note: there is currently one remaining include_directories command in the
# CMake files. It is related to ZLIB support which is planned to be removed.
# When the support is removed, the associated include_directories command
# will be removed as well as this note.
#
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 ${CMAKE_CURRENT_SOURCE_DIR})
option(USE_PKCS11_HELPER_LIBRARY "Build mbed TLS with the pkcs11-helper library." OFF)
option(ENABLE_ZLIB_SUPPORT "Build mbed TLS with zlib library." OFF)
option(ENABLE_PROGRAMS "Build mbed TLS programs." ON)
option(UNSAFE_BUILD "Allow unsafe builds. These builds ARE NOT SECURE." OFF)
option(MBEDTLS_FATAL_WARNINGS "Compiler warnings treated as errors" ON)
string(REGEX MATCH "Clang" CMAKE_COMPILER_IS_CLANG "${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.
if(NOT CMAKE_VERSION VERSION_LESS 3.15.0)
set(Python3_FIND_STRATEGY LOCATION)
find_package(Python3 COMPONENTS Interpreter)
if(Python3_Interpreter_FOUND)
set(MBEDTLS_PYTHON_EXECUTABLE ${Python3_EXECUTABLE})
endif()
else()
find_package(PythonInterp 3)
if(PYTHONINTERP_FOUND)
set(MBEDTLS_PYTHON_EXECUTABLE ${PYTHON_EXECUTABLE})
endif()
endif()
if(MBEDTLS_PYTHON_EXECUTABLE)
# If 128-bit keys are configured for CTR_DRBG, display an appropriate warning
execute_process(COMMAND ${MBEDTLS_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 ${MBEDTLS_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 "${CMAKE_C_FLAGS} -Wshadow -Wformat-signedness")
endif()
set(CMAKE_C_FLAGS_RELEASE "-O2")
set(CMAKE_C_FLAGS_DEBUG "-O0 -g3")
set(CMAKE_C_FLAGS_COVERAGE "-O0 -g3 --coverage")
set(CMAKE_C_FLAGS_ASAN "-fsanitize=address -fno-common -fsanitize=undefined -fno-sanitize-recover=all -O3")
set(CMAKE_C_FLAGS_ASANDBG "-fsanitize=address -fno-common -fsanitize=undefined -fno-sanitize-recover=all -O1 -g3 -fno-omit-frame-pointer -fno-optimize-sibling-calls")
set(CMAKE_C_FLAGS_CHECK "-Os")
set(CMAKE_C_FLAGS_CHECKFULL "${CMAKE_C_FLAGS_CHECK} -Wcast-qual")
endif(CMAKE_COMPILER_IS_GNU)
if(CMAKE_COMPILER_IS_CLANG)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wwrite-strings -Wpointer-arith -Wimplicit-fallthrough -Wshadow -Wvla")
set(CMAKE_C_FLAGS_RELEASE "-O2")
set(CMAKE_C_FLAGS_DEBUG "-O0 -g3")
set(CMAKE_C_FLAGS_COVERAGE "-O0 -g3 --coverage")
set(CMAKE_C_FLAGS_ASAN "-fsanitize=address -fno-common -fsanitize=undefined -fno-sanitize-recover=all -O3")
set(CMAKE_C_FLAGS_ASANDBG "-fsanitize=address -fno-common -fsanitize=undefined -fno-sanitize-recover=all -O1 -g3 -fno-omit-frame-pointer -fno-optimize-sibling-calls")
set(CMAKE_C_FLAGS_MEMSAN "-fsanitize=memory -O3")
set(CMAKE_C_FLAGS_MEMSANDBG "-fsanitize=memory -O1 -g3 -fno-omit-frame-pointer -fno-optimize-sibling-calls -fsanitize-memory-track-origins=2")
set(CMAKE_C_FLAGS_CHECK "-Os")
endif(CMAKE_COMPILER_IS_CLANG)
if(CMAKE_COMPILER_IS_IAR)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} --warn_about_c_style_casts --warnings_are_errors -Ohz")
endif(CMAKE_COMPILER_IS_IAR)
if(CMAKE_COMPILER_IS_MSVC)
# Strictest warnings
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /W3")
endif(CMAKE_COMPILER_IS_MSVC)
if(MBEDTLS_FATAL_WARNINGS)
if(CMAKE_COMPILER_IS_MSVC)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /WX")
endif(CMAKE_COMPILER_IS_MSVC)
if(CMAKE_COMPILER_IS_CLANG OR CMAKE_COMPILER_IS_GNU)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
if(UNSAFE_BUILD)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-error=cpp")
set(CMAKE_C_FLAGS_ASAN "${CMAKE_C_FLAGS_ASAN} -Wno-error=cpp")
set(CMAKE_C_FLAGS_ASANDBG "${CMAKE_C_FLAGS_ASANDBG} -Wno-error=cpp")
endif(UNSAFE_BUILD)
endif(CMAKE_COMPILER_IS_CLANG OR CMAKE_COMPILER_IS_GNU)
endif(MBEDTLS_FATAL_WARNINGS)
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()
if(ENABLE_ZLIB_SUPPORT)
find_package(ZLIB)
if(ZLIB_FOUND)
include_directories(${ZLIB_INCLUDE_DIR})
endif(ZLIB_FOUND)
endif(ENABLE_ZLIB_SUPPORT)
add_subdirectory(include)
add_subdirectory(3rdparty)
list(APPEND libs ${thirdparty_lib})
add_subdirectory(library)
if(ENABLE_TESTING OR ENABLE_PROGRAMS)
file(GLOB MBEDTLS_TEST_FILES ${CMAKE_CURRENT_SOURCE_DIR}/tests/src/*.c)
add_library(mbedtls_test OBJECT ${MBEDTLS_TEST_FILES})
target_include_directories(mbedtls_test
PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/tests/include
PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/include
PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/library)
endif()
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
COMMAND tests/compat.sh
COMMAND tests/ssl-opt.sh
)
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()