mbedtls/CMakeLists.txt
Azim Khan c57d0e5ed5 Treat warnings as errors for IAR
Fix IAR compiler warnings

Two warnings have been fixed:
1. code 'if( len <= 0xFFFFFFFF )' gave warning 'pointless integer comparison'.
   This was fixed by wraping the condition in '#if SIZE_MAX > 0xFFFFFFFF'.
2. code 'diff |= A[i] ^ B[i];' gave warning 'the order of volatile accesses is undefined in'.
   This was fixed by read the volatile data in temporary variables before the computation.

Explain IAR warning on volatile access

Consistent use of CMAKE_C_COMPILER_ID
2018-06-14 08:48:49 +01:00

186 lines
7.5 KiB
CMake

cmake_minimum_required(VERSION 2.6)
project("mbed TLS" C)
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)
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()
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 ${base_name} in the binary directory
# to the corresponding path in the source directory.
function(link_to_source base_name)
# Get OS dependent path to use in `execute_process`
file(TO_NATIVE_PATH "${CMAKE_CURRENT_BINARY_DIR}/${base_name}" link)
file(TO_NATIVE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/${base_name}" target)
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 -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 -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 -W -Wdeclaration-after-statement -Wwrite-strings -Wpointer-arith -Wimplicit-fallthrough -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 -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 "${CMAKE_C_FLAGS} /WX")
endif(CMAKE_COMPILER_IS_MSVC)
if(CMAKE_BUILD_TYPE STREQUAL "Coverage")
if(CMAKE_COMPILER_IS_GNU OR CMAKE_COMPILER_IS_CLANG)
set(CMAKE_SHARED_LINKER_FLAGS "--coverage")
endif(CMAKE_COMPILER_IS_GNU OR CMAKE_COMPILER_IS_CLANG)
endif(CMAKE_BUILD_TYPE STREQUAL "Coverage")
if(LIB_INSTALL_DIR)
else()
set(LIB_INSTALL_DIR lib)
endif()
include_directories(include/)
if(ENABLE_ZLIB_SUPPORT)
find_package(ZLIB)
if(ZLIB_FOUND)
include_directories(${ZLIB_INCLUDE_DIR})
endif(ZLIB_FOUND)
endif(ENABLE_ZLIB_SUPPORT)
add_subdirectory(library)
add_subdirectory(include)
if(ENABLE_PROGRAMS)
add_subdirectory(programs)
endif()
# targets for doxygen only work on Unix
if(UNIX)
ADD_CUSTOM_TARGET(apidoc
COMMAND mkdir -p apidoc
COMMAND cp include/mbedtls/config.h include/mbedtls/config.h.bak
COMMAND scripts/config.pl realfull
COMMAND doxygen doxygen/mbedtls.doxyfile
COMMAND mv include/mbedtls/config.h.bak include/mbedtls/config.h
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
ADD_CUSTOM_TARGET(apidoc_clean
COMMAND rm -rf apidoc
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
endif(UNIX)
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 -m 'tls1 tls1_1 tls1_2 dtls1 dtls1_2'
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)
endif()
# 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()