1cmake_minimum_required(VERSION 2.6)
2project("mbed TLS" C)
3
4option(USE_PKCS11_HELPER_LIBRARY "Build mbed TLS with the pkcs11-helper library." OFF)
5option(ENABLE_ZLIB_SUPPORT "Build mbed TLS with zlib library." OFF)
6
7option(ENABLE_PROGRAMS "Build mbed TLS programs." ON)
8
9option(UNSAFE_BUILD "Allow unsafe builds. These builds ARE NOT SECURE." OFF)
10
11# the test suites currently have compile errors with MSVC
12if(MSVC)
13    option(ENABLE_TESTING "Build mbed TLS tests." OFF)
14else()
15    option(ENABLE_TESTING "Build mbed TLS tests." ON)
16endif()
17
18# Warning string - created as a list for compatibility with CMake 2.8
19set(WARNING_BORDER "*******************************************************\n")
20set(NULL_ENTROPY_WARN_L1 "****  WARNING!  MBEDTLS_TEST_NULL_ENTROPY defined!\n")
21set(NULL_ENTROPY_WARN_L2 "****  THIS BUILD HAS NO DEFINED ENTROPY SOURCES\n")
22set(NULL_ENTROPY_WARN_L3 "****  AND IS *NOT* SUITABLE FOR PRODUCTION USE\n")
23
24set(NULL_ENTROPY_WARNING "${WARNING_BORDER}"
25                         "${NULL_ENTROPY_WARN_L1}"
26                         "${NULL_ENTROPY_WARN_L2}"
27                         "${NULL_ENTROPY_WARN_L3}"
28                         "${WARNING_BORDER}")
29
30find_package(Perl)
31if(PERL_FOUND)
32
33    # If NULL Entropy is configured, display an appropriate warning
34    execute_process(COMMAND ${PERL_EXECUTABLE} ${CMAKE_SOURCE_DIR}/scripts/config.pl -f ${CMAKE_SOURCE_DIR}/include/mbedtls/config.h get MBEDTLS_TEST_NULL_ENTROPY
35                        RESULT_VARIABLE result)
36    if(${result} EQUAL 0)
37        message(WARNING ${NULL_ENTROPY_WARNING})
38
39        if(NOT UNSAFE_BUILD)
40            message(FATAL_ERROR "\
41\n\
42Warning! You have enabled MBEDTLS_TEST_NULL_ENTROPY. \
43This option is not safe for production use and negates all security \
44It is intended for development use only. \
45\n\
46To confirm you want to build with this option, re-run cmake with the \
47option: \n\
48  cmake -DUNSAFE_BUILD=ON ")
49
50            return()
51        endif()
52    endif()
53endif()
54
55set(CMAKE_BUILD_TYPE ${CMAKE_BUILD_TYPE}
56    CACHE STRING "Choose the type of build: None Debug Release Coverage ASan ASanDbg MemSan MemSanDbg Check CheckFull"
57    FORCE)
58
59string(REGEX MATCH "Clang" CMAKE_COMPILER_IS_CLANG "${CMAKE_C_COMPILER_ID}")
60
61if(CMAKE_COMPILER_IS_GNUCC)
62    # some warnings we want are not available with old GCC versions
63    # note: starting with CMake 2.8 we could use CMAKE_C_COMPILER_VERSION
64    execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion
65                    OUTPUT_VARIABLE GCC_VERSION)
66    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -W -Wdeclaration-after-statement -Wwrite-strings")
67    if (GCC_VERSION VERSION_GREATER 4.5 OR GCC_VERSION VERSION_EQUAL 4.5)
68        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wlogical-op")
69    endif()
70    if (GCC_VERSION VERSION_GREATER 4.8 OR GCC_VERSION VERSION_EQUAL 4.8)
71        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wshadow")
72    endif()
73    set(CMAKE_C_FLAGS_RELEASE     "-O2")
74    set(CMAKE_C_FLAGS_DEBUG       "-O0 -g3")
75    set(CMAKE_C_FLAGS_COVERAGE    "-O0 -g3 --coverage")
76    set(CMAKE_C_FLAGS_ASAN        "-Werror -fsanitize=address -fno-common -O3")
77    set(CMAKE_C_FLAGS_ASANDBG     "-Werror -fsanitize=address -fno-common -O1 -g3 -fno-omit-frame-pointer -fno-optimize-sibling-calls ")
78    set(CMAKE_C_FLAGS_CHECK       "-Werror -Os")
79    set(CMAKE_C_FLAGS_CHECKFULL   "${CMAKE_C_FLAGS_CHECK} -Wcast-qual")
80endif(CMAKE_COMPILER_IS_GNUCC)
81
82if(CMAKE_COMPILER_IS_CLANG)
83    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -W -Wdeclaration-after-statement -Wwrite-strings -Wpointer-arith -Wimplicit-fallthrough -Wshadow")
84    set(CMAKE_C_FLAGS_RELEASE     "-O2")
85    set(CMAKE_C_FLAGS_DEBUG       "-O0 -g3")
86    set(CMAKE_C_FLAGS_COVERAGE    "-O0 -g3 --coverage")
87    set(CMAKE_C_FLAGS_ASAN        "-Werror -fsanitize=address -fno-common -fsanitize=undefined -fno-sanitize-recover -O3")
88    set(CMAKE_C_FLAGS_ASANDBG     "-Werror -fsanitize=address -fno-common -fsanitize=undefined -fno-sanitize-recover -O1 -g3 -fno-omit-frame-pointer -fno-optimize-sibling-calls ")
89    set(CMAKE_C_FLAGS_MEMSAN      "-Werror -fsanitize=memory -O3")
90    set(CMAKE_C_FLAGS_MEMSANDBG   "-Werror -fsanitize=memory -O1 -g3 -fno-omit-frame-pointer -fno-optimize-sibling-calls -fsanitize-memory-track-origins=2")
91    set(CMAKE_C_FLAGS_CHECK       "-Werror -Os")
92endif(CMAKE_COMPILER_IS_CLANG)
93
94if(MSVC)
95    set(CMAKE_C_FLAGS_CHECK       "/WX")
96endif(MSVC)
97
98if(CMAKE_BUILD_TYPE STREQUAL "Coverage")
99    if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_CLANG)
100        set(CMAKE_SHARED_LINKER_FLAGS "--coverage")
101    endif(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_CLANG)
102endif(CMAKE_BUILD_TYPE STREQUAL "Coverage")
103
104if(LIB_INSTALL_DIR)
105else()
106    set(LIB_INSTALL_DIR lib)
107endif()
108
109include_directories(include/)
110
111if(ENABLE_ZLIB_SUPPORT)
112    find_package(ZLIB)
113
114    if(ZLIB_FOUND)
115        include_directories(${ZLIB_INCLUDE_DIR})
116    endif(ZLIB_FOUND)
117endif(ENABLE_ZLIB_SUPPORT)
118
119add_subdirectory(library)
120add_subdirectory(include)
121
122if(ENABLE_PROGRAMS)
123    add_subdirectory(programs)
124endif()
125
126ADD_CUSTOM_TARGET(apidoc
127    COMMAND doxygen doxygen/mbedtls.doxyfile
128    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
129
130if(ENABLE_TESTING)
131    enable_testing()
132
133    add_subdirectory(tests)
134
135    # additional convenience targets for Unix only
136    if(UNIX)
137
138        ADD_CUSTOM_TARGET(covtest
139            COMMAND make test
140            COMMAND programs/test/selftest
141            COMMAND tests/compat.sh
142            COMMAND tests/ssl-opt.sh
143        )
144
145        ADD_CUSTOM_TARGET(lcov
146            COMMAND rm -rf Coverage
147            COMMAND lcov --capture --initial --directory library/CMakeFiles/mbedtls.dir -o files.info
148            COMMAND lcov --capture --directory library/CMakeFiles/mbedtls.dir -o tests.info
149            COMMAND lcov --add-tracefile files.info --add-tracefile tests.info -o all.info
150            COMMAND lcov --remove all.info -o final.info '*.h'
151            COMMAND gendesc tests/Descriptions.txt -o descriptions
152            COMMAND genhtml --title "mbed TLS" --description-file descriptions --keep-descriptions --legend --no-branch-coverage -o Coverage final.info
153            COMMAND rm -f files.info tests.info all.info final.info descriptions
154        )
155
156        ADD_CUSTOM_TARGET(memcheck
157            COMMAND sed -i.bak s+/usr/bin/valgrind+`which valgrind`+ DartConfiguration.tcl
158            COMMAND ctest -O memcheck.log -D ExperimentalMemCheck
159            COMMAND tail -n1 memcheck.log | grep 'Memory checking results:' > /dev/null
160            COMMAND rm -f memcheck.log
161            COMMAND mv DartConfiguration.tcl.bak DartConfiguration.tcl
162        )
163    endif(UNIX)
164endif()
165