esp-idf/components/mbedtls/CMakeLists.txt
2019-03-26 16:24:22 +08:00

112 lines
4.9 KiB
CMake

set(COMPONENT_ADD_INCLUDEDIRS "port/include" "mbedtls/include")
set(COMPONENT_SRCS "mbedtls.c")
set(COMPONENT_REQUIRES lwip)
register_component()
# Only build mbedtls libraries
set(ENABLE_TESTING CACHE BOOL OFF)
set(ENABLE_PROGRAMS CACHE BOOL OFF)
# Use same policy between IDF and mbedtls build
function(project)
set(_args ARGV)
_project(${${_args}})
cmake_policy(SET CMP0022 NEW)
endfunction()
# Needed to for include_next includes to work from within mbedtls
include_directories("${COMPONENT_PATH}/port/include")
# Workaround issue with creating symbolic links due to issues with native
# path conversion (TO_NATIVE_PATH). The following summarizes what CMake invocations
# this workaround is for:
#
# 1. CMake from command line + Ninja = No errors
# 2. CMake from command line + MinGW Makefiles = Forward slash for paths, mklink mistakes path for a switch
# 3. CMake from MSYS + Ninja = No errors
# 4. CMake from MSYS + Unix Makefiles/MSYS Makefiles = Forward slash for paths, mklink mistakes path for a switch
#
# There are references to the issue in case (2) and (4) in https://github.com/ARMmbed/mbedtls/issues/1496,
# https://cmake.org/pipermail/cmake/2006-July/010193.html, and https://cmake.org/Bug/view.php?id=5939.
#
# This workaround is meant to circumvent logic inside link_to_source() function in mbedtls/mbedtls/CMakeLists.txt.
if(CMAKE_HOST_WIN32)
set(msystem $ENV{MSYSTEM})
if(MSYS OR msystem)
# Solves case (4). When in MSYS environment, instead opt to use the Unix equivalent of mklink.
set(CMAKE_HOST_UNIX 1)
else()
# Solves case (2). When invoked from command line, create the symbolic links ahead of link_to_source() invocations
# using a 'hybrid' path format resilient intermediary - in this case a Python wrapper for mklink. This is more unweildy
# than necessary, since string(REPLACE "/" "\\" ... does not actually work.
set(target_links "mbedtls/include/mbedtls"
"mbedtls/scripts")
foreach(target_link ${target_links})
file(TO_NATIVE_PATH ${CMAKE_CURRENT_BINARY_DIR}/${target_link} link)
file(TO_NATIVE_PATH ${COMPONENT_PATH}/${target_link} target)
if(NOT EXISTS ${link})
if (IS_DIRECTORY ${target})
set(command ${PYTHON} ${COMPONENT_PATH}/mklink.py /j ${link} ${target})
else()
set(command ${PYTHON} ${COMPONENT_PATH}/mklink.py /h ${link} ${target})
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()
endforeach()
endif()
endif()
# Import mbedtls library targets
add_subdirectory(mbedtls)
# Use port specific implementation of net_socket.c instead of one from mbedtls
get_target_property(src_tls mbedtls SOURCES)
list(REMOVE_ITEM src_tls net_sockets.c)
set_property(TARGET mbedtls PROPERTY SOURCES ${src_tls})
set(mbedtls_targets mbedtls mbedcrypto mbedx509)
# Add port files to mbedtls targets
target_sources(mbedtls PRIVATE "${COMPONENT_PATH}/port/esp_bignum.c"
"${COMPONENT_PATH}/port/esp_hardware.c"
"${COMPONENT_PATH}/port/esp_mem.c"
"${COMPONENT_PATH}/port/esp_sha1.c"
"${COMPONENT_PATH}/port/esp_sha256.c"
"${COMPONENT_PATH}/port/esp_sha512.c"
"${COMPONENT_PATH}/port/mbedtls_debug.c"
"${COMPONENT_PATH}/port/net_sockets.c"
"${COMPONENT_PATH}/port/esp32/aes.c"
"${COMPONENT_PATH}/port/esp32/sha.c")
foreach(target ${mbedtls_targets})
# Propagate compile options to mbedtls library targets
target_include_directories(${target} PRIVATE "${IDF_INCLUDE_DIRECTORIES}")
target_compile_options(${target} PRIVATE "${IDF_COMPILE_OPTIONS};${IDF_C_COMPILE_OPTIONS}")
target_compile_definitions(${target} PRIVATE "${IDF_COMPILE_DEFINITIONS}")
target_compile_definitions(${target} PUBLIC -DMBEDTLS_CONFIG_FILE="mbedtls/esp_config.h")
# The mbedtls targets also depends on core components
foreach(common ${IDF_COMPONENT_REQUIRES_COMMON})
component_get_target(common_target ${common})
set_property(TARGET ${target} APPEND PROPERTY INTERFACE_LINK_LIBRARIES ${common_target})
set_property(TARGET ${target} APPEND PROPERTY LINK_LIBRARIES ${common_target})
endforeach()
endforeach()
# Link mbedtls libraries to component library
target_link_libraries(${COMPONENT_TARGET} ${mbedtls_targets})
# Catch usage of deprecated mbedTLS functions when building tests
if(mbedtls_test IN_LIST BUILD_TEST_COMPONENTS)
add_definitions(-DMBEDTLS_DEPRECATED_WARNING)
endif()