cmake_minimum_required(VERSION 2.6)
project(MBEDTLS C)

string(REGEX MATCH "Clang" CMAKE_COMPILER_IS_CLANG "${CMAKE_C_COMPILER_ID}")

if(CMAKE_COMPILER_IS_GNUCC)
  # 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 -W -Wdeclaration-after-statement -Wwrite-strings")
  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 -O3")
  set(CMAKE_C_FLAGS_ASANDBG     "-Werror -fsanitize=address -fno-common -O1 -g3 -fno-omit-frame-pointer -fno-optimize-sibling-calls ")
  set(CMAKE_C_FLAGS_CHECK       "-Werror -O1")
  set(CMAKE_C_FLAGS_CHECKFULL   "${CMAKE_C_FLAGS_CHECK} -Wcast-qual")
endif(CMAKE_COMPILER_IS_GNUCC)

if(CMAKE_COMPILER_IS_CLANG)
    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -W -Wdeclaration-after-statement -Wwrite-strings -Wpointer-arith -Wshadow")
  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 -O3")
  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 ")
  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 -O1")
endif(CMAKE_COMPILER_IS_CLANG)

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)

if(CMAKE_BUILD_TYPE STREQUAL "Coverage")
  if(CMAKE_COMPILER_IS_GNUCC)
    set(CMAKE_SHARED_LINKER_FLAGS "--coverage")
  endif(CMAKE_COMPILER_IS_GNUCC)
  if(CMAKE_COMPILER_IS_CLANG)
    set(CMAKE_SHARED_LINKER_FLAGS "--coverage")
  endif(CMAKE_COMPILER_IS_CLANG)
endif(CMAKE_BUILD_TYPE STREQUAL "Coverage")

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(ENABLE_TESTING "Build mbed TLS tests." ON)

if(ENABLE_TESTING)
  enable_testing()
endif()

if(LIB_INSTALL_DIR)
else()
set(LIB_INSTALL_DIR lib)
endif()

include_directories(include/)

if(ENABLE_ZLIB_SUPPORT)
  find_package(ZLIB)

  if(ZLIB_FOUND)
    include_directories(${ZLIB_INCLUDE_DIR})
  endif(ZLIB_FOUND)
endif(ENABLE_ZLIB_SUPPORT)

add_subdirectory(library)
add_subdirectory(include)

if(ENABLE_TESTING)
  if(CMAKE_COMPILER_IS_GNUCC)
    add_subdirectory(tests)
  endif(CMAKE_COMPILER_IS_GNUCC)
  if(CMAKE_COMPILER_IS_CLANG)
    add_subdirectory(tests)
  endif(CMAKE_COMPILER_IS_CLANG)
endif()

if(ENABLE_PROGRAMS)
  add_subdirectory(programs)
endif()

ADD_CUSTOM_TARGET(apidoc
                  COMMAND doxygen doxygen/mbedtls.doxyfile
                  WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})

if(ENABLE_TESTING)
  ADD_CUSTOM_TARGET(test-ref-config
    COMMAND tests/scripts/test-ref-configs.pl
    )

  ADD_CUSTOM_TARGET(covtest
    COMMAND make test
    COMMAND programs/test/selftest
    COMMAND cd tests && ./compat.sh
    COMMAND cd 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()