1cmake_minimum_required(VERSION 2.6) 2if(TEST_CPP) 3 project("mbed TLS" C CXX) 4else() 5 project("mbed TLS" C) 6endif() 7 8option(USE_PKCS11_HELPER_LIBRARY "Build mbed TLS with the pkcs11-helper library." OFF) 9option(ENABLE_ZLIB_SUPPORT "Build mbed TLS with zlib library." OFF) 10 11option(ENABLE_PROGRAMS "Build mbed TLS programs." ON) 12 13option(UNSAFE_BUILD "Allow unsafe builds. These builds ARE NOT SECURE." OFF) 14 15string(REGEX MATCH "Clang" CMAKE_COMPILER_IS_CLANG "${CMAKE_C_COMPILER_ID}") 16string(REGEX MATCH "GNU" CMAKE_COMPILER_IS_GNU "${CMAKE_C_COMPILER_ID}") 17string(REGEX MATCH "IAR" CMAKE_COMPILER_IS_IAR "${CMAKE_C_COMPILER_ID}") 18string(REGEX MATCH "MSVC" CMAKE_COMPILER_IS_MSVC "${CMAKE_C_COMPILER_ID}") 19 20# the test suites currently have compile errors with MSVC 21if(CMAKE_COMPILER_IS_MSVC) 22 option(ENABLE_TESTING "Build mbed TLS tests." OFF) 23else() 24 option(ENABLE_TESTING "Build mbed TLS tests." ON) 25endif() 26 27# Warning string - created as a list for compatibility with CMake 2.8 28set(WARNING_BORDER "*******************************************************\n") 29set(NULL_ENTROPY_WARN_L1 "**** WARNING! MBEDTLS_TEST_NULL_ENTROPY defined!\n") 30set(NULL_ENTROPY_WARN_L2 "**** THIS BUILD HAS NO DEFINED ENTROPY SOURCES\n") 31set(NULL_ENTROPY_WARN_L3 "**** AND IS *NOT* SUITABLE FOR PRODUCTION USE\n") 32 33set(NULL_ENTROPY_WARNING "${WARNING_BORDER}" 34 "${NULL_ENTROPY_WARN_L1}" 35 "${NULL_ENTROPY_WARN_L2}" 36 "${NULL_ENTROPY_WARN_L3}" 37 "${WARNING_BORDER}") 38 39set(CTR_DRBG_128_BIT_KEY_WARN_L1 "**** WARNING! MBEDTLS_CTR_DRBG_USE_128_BIT_KEY defined!\n") 40set(CTR_DRBG_128_BIT_KEY_WARN_L2 "**** Using 128-bit keys for CTR_DRBG limits the security of generated\n") 41set(CTR_DRBG_128_BIT_KEY_WARN_L3 "**** keys and operations that use random values generated to 128-bit security\n") 42 43set(CTR_DRBG_128_BIT_KEY_WARNING "${WARNING_BORDER}" 44 "${CTR_DRBG_128_BIT_KEY_WARN_L1}" 45 "${CTR_DRBG_128_BIT_KEY_WARN_L2}" 46 "${CTR_DRBG_128_BIT_KEY_WARN_L3}" 47 "${WARNING_BORDER}") 48 49find_package(PythonInterp) 50find_package(Perl) 51if(PERL_FOUND) 52 53 # If 128-bit keys are configured for CTR_DRBG, display an appropriate warning 54 execute_process(COMMAND ${PERL_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/scripts/config.pl -f ${CMAKE_CURRENT_SOURCE_DIR}/include/mbedtls/config.h get MBEDTLS_CTR_DRBG_USE_128_BIT_KEY 55 RESULT_VARIABLE result) 56 if(${result} EQUAL 0) 57 message(WARNING ${CTR_DRBG_128_BIT_KEY_WARNING}) 58 endif() 59 60 # If NULL Entropy is configured, display an appropriate warning 61 execute_process(COMMAND ${PERL_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/scripts/config.pl -f ${CMAKE_CURRENT_SOURCE_DIR}/include/mbedtls/config.h get MBEDTLS_TEST_NULL_ENTROPY 62 RESULT_VARIABLE result) 63 if(${result} EQUAL 0) 64 message(WARNING ${NULL_ENTROPY_WARNING}) 65 66 if(NOT UNSAFE_BUILD) 67 message(FATAL_ERROR "\ 68\n\ 69Warning! You have enabled MBEDTLS_TEST_NULL_ENTROPY. \ 70This option is not safe for production use and negates all security \ 71It is intended for development use only. \ 72\n\ 73To confirm you want to build with this option, re-run cmake with the \ 74option: \n\ 75 cmake -DUNSAFE_BUILD=ON ") 76 77 return() 78 endif() 79 endif() 80endif() 81 82set(CMAKE_BUILD_TYPE ${CMAKE_BUILD_TYPE} 83 CACHE STRING "Choose the type of build: None Debug Release Coverage ASan ASanDbg MemSan MemSanDbg Check CheckFull" 84 FORCE) 85 86# Create a symbolic link from ${base_name} in the binary directory 87# to the corresponding path in the source directory. 88function(link_to_source base_name) 89 # Get OS dependent path to use in `execute_process` 90 if (CMAKE_HOST_WIN32) 91 #mklink is an internal command of cmd.exe it can only work with \ 92 string(REPLACE "/" "\\" link "${CMAKE_CURRENT_BINARY_DIR}/${base_name}") 93 string(REPLACE "/" "\\" target "${CMAKE_CURRENT_SOURCE_DIR}/${base_name}") 94 else() 95 set(link "${CMAKE_CURRENT_BINARY_DIR}/${base_name}") 96 set(target "${CMAKE_CURRENT_SOURCE_DIR}/${base_name}") 97 endif() 98 99 if (NOT EXISTS ${link}) 100 if (CMAKE_HOST_UNIX) 101 set(command ln -s ${target} ${link}) 102 else() 103 if (IS_DIRECTORY ${target}) 104 set(command cmd.exe /c mklink /j ${link} ${target}) 105 else() 106 set(command cmd.exe /c mklink /h ${link} ${target}) 107 endif() 108 endif() 109 110 execute_process(COMMAND ${command} 111 RESULT_VARIABLE result 112 ERROR_VARIABLE output) 113 114 if (NOT ${result} EQUAL 0) 115 message(FATAL_ERROR "Could not create symbolic link for: ${target} --> ${output}") 116 endif() 117 endif() 118endfunction(link_to_source) 119 120string(REGEX MATCH "Clang" CMAKE_COMPILER_IS_CLANG "${CMAKE_C_COMPILER_ID}") 121 122if(CMAKE_COMPILER_IS_GNU) 123 # some warnings we want are not available with old GCC versions 124 # note: starting with CMake 2.8 we could use CMAKE_C_COMPILER_VERSION 125 execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion 126 OUTPUT_VARIABLE GCC_VERSION) 127 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -W -Wdeclaration-after-statement -Wwrite-strings") 128 if (GCC_VERSION VERSION_GREATER 4.5 OR GCC_VERSION VERSION_EQUAL 4.5) 129 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wlogical-op") 130 endif() 131 if (GCC_VERSION VERSION_GREATER 4.8 OR GCC_VERSION VERSION_EQUAL 4.8) 132 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wshadow") 133 endif() 134 set(CMAKE_C_FLAGS_RELEASE "-O2") 135 set(CMAKE_C_FLAGS_DEBUG "-O0 -g3") 136 set(CMAKE_C_FLAGS_COVERAGE "-O0 -g3 --coverage") 137 set(CMAKE_C_FLAGS_ASAN "-Werror -fsanitize=address -fno-common -O3") 138 set(CMAKE_C_FLAGS_ASANDBG "-Werror -fsanitize=address -fno-common -O1 -g3 -fno-omit-frame-pointer -fno-optimize-sibling-calls ") 139 set(CMAKE_C_FLAGS_CHECK "-Werror -Os") 140 set(CMAKE_C_FLAGS_CHECKFULL "${CMAKE_C_FLAGS_CHECK} -Wcast-qual") 141endif(CMAKE_COMPILER_IS_GNU) 142 143if(CMAKE_COMPILER_IS_CLANG) 144 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -W -Wdeclaration-after-statement -Wwrite-strings -Wpointer-arith -Wimplicit-fallthrough -Wshadow") 145 set(CMAKE_C_FLAGS_RELEASE "-O2") 146 set(CMAKE_C_FLAGS_DEBUG "-O0 -g3") 147 set(CMAKE_C_FLAGS_COVERAGE "-O0 -g3 --coverage") 148 set(CMAKE_C_FLAGS_ASAN "-Werror -fsanitize=address -fno-common -fsanitize=undefined -fno-sanitize-recover=all -O3") 149 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 ") 150 set(CMAKE_C_FLAGS_MEMSAN "-Werror -fsanitize=memory -O3") 151 set(CMAKE_C_FLAGS_MEMSANDBG "-Werror -fsanitize=memory -O1 -g3 -fno-omit-frame-pointer -fno-optimize-sibling-calls -fsanitize-memory-track-origins=2") 152 set(CMAKE_C_FLAGS_CHECK "-Werror -Os") 153endif(CMAKE_COMPILER_IS_CLANG) 154 155if(CMAKE_COMPILER_IS_IAR) 156 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} --warn_about_c_style_casts --warnings_are_errors -Ohz") 157endif(CMAKE_COMPILER_IS_IAR) 158 159if(CMAKE_COMPILER_IS_MSVC) 160 # Strictest warnings, and treat as errors 161 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /W3") 162 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /WX") 163endif(CMAKE_COMPILER_IS_MSVC) 164 165if(CMAKE_BUILD_TYPE STREQUAL "Coverage") 166 if(CMAKE_COMPILER_IS_GNU OR CMAKE_COMPILER_IS_CLANG) 167 set(CMAKE_SHARED_LINKER_FLAGS "--coverage") 168 endif(CMAKE_COMPILER_IS_GNU OR CMAKE_COMPILER_IS_CLANG) 169endif(CMAKE_BUILD_TYPE STREQUAL "Coverage") 170 171if(LIB_INSTALL_DIR) 172else() 173 set(LIB_INSTALL_DIR lib) 174endif() 175 176include_directories(include/) 177 178if(ENABLE_ZLIB_SUPPORT) 179 find_package(ZLIB) 180 181 if(ZLIB_FOUND) 182 include_directories(${ZLIB_INCLUDE_DIR}) 183 endif(ZLIB_FOUND) 184endif(ENABLE_ZLIB_SUPPORT) 185 186add_subdirectory(library) 187add_subdirectory(include) 188 189if(ENABLE_PROGRAMS) 190 add_subdirectory(programs) 191endif() 192 193ADD_CUSTOM_TARGET(apidoc 194 COMMAND doxygen mbedtls.doxyfile 195 WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/doxygen) 196 197if(ENABLE_TESTING) 198 enable_testing() 199 200 add_subdirectory(tests) 201 202 # additional convenience targets for Unix only 203 if(UNIX) 204 205 ADD_CUSTOM_TARGET(covtest 206 COMMAND make test 207 COMMAND programs/test/selftest 208 COMMAND tests/compat.sh 209 COMMAND tests/ssl-opt.sh 210 ) 211 212 ADD_CUSTOM_TARGET(lcov 213 COMMAND rm -rf Coverage 214 COMMAND lcov --capture --initial --directory library/CMakeFiles/mbedtls.dir -o files.info 215 COMMAND lcov --capture --directory library/CMakeFiles/mbedtls.dir -o tests.info 216 COMMAND lcov --add-tracefile files.info --add-tracefile tests.info -o all.info 217 COMMAND lcov --remove all.info -o final.info '*.h' 218 COMMAND gendesc tests/Descriptions.txt -o descriptions 219 COMMAND genhtml --title "mbed TLS" --description-file descriptions --keep-descriptions --legend --no-branch-coverage -o Coverage final.info 220 COMMAND rm -f files.info tests.info all.info final.info descriptions 221 ) 222 223 ADD_CUSTOM_TARGET(memcheck 224 COMMAND sed -i.bak s+/usr/bin/valgrind+`which valgrind`+ DartConfiguration.tcl 225 COMMAND ctest -O memcheck.log -D ExperimentalMemCheck 226 COMMAND tail -n1 memcheck.log | grep 'Memory checking results:' > /dev/null 227 COMMAND rm -f memcheck.log 228 COMMAND mv DartConfiguration.tcl.bak DartConfiguration.tcl 229 ) 230 endif(UNIX) 231 232 # Make scripts needed for testing available in an out-of-source build. 233 if (NOT ${CMAKE_CURRENT_BINARY_DIR} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}) 234 link_to_source(scripts) 235 # Copy (don't link) DartConfiguration.tcl, needed for memcheck, to 236 # keep things simple with the sed commands in the memcheck target. 237 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/DartConfiguration.tcl 238 ${CMAKE_CURRENT_BINARY_DIR}/DartConfiguration.tcl COPYONLY) 239 endif() 240endif() 241