| # |
| # CMake Toolchain file for crosscompiling on ARM. |
| # |
| # This can be used when running cmake in the following way: |
| # cd build/ |
| # cmake .. -DCMAKE_TOOLCHAIN_FILE=../cross-arm-linux-gnueabihf.cmake |
| # |
| |
| # Target operating system name. |
| set(CMAKE_SYSTEM_NAME Linux) |
| |
| # Name of C compiler. |
| set(CMAKE_C_COMPILER "${CROSS_PATH}/bin/xtensa-esp32-elf-gcc${EXECUTABLE_EXT}") |
| set(CMAKE_AR "${CROSS_PATH}/bin/xtensa-esp32-elf-ar${EXECUTABLE_EXT}") |
| set(CMAKE_RANLIB "${CROSS_PATH}/bin/xtensa-esp32-elf-ranlib${EXECUTABLE_EXT}") |
| set(CMAKE_LINKER "${CROSS_PATH}/bin/xtensa-esp32-elf-ld${EXECUTABLE_EXT}") |
| |
| # |
| # Different build system distros set release optimization level to different |
| # things according to their local policy, eg, Fedora is -O2 and Ubuntu is -O3 |
| # here. Actually the build system's local policy is completely unrelated to |
| # our desire for cross-build release optimization policy for code built to run |
| # on a completely different target than the build system itself. |
| # |
| # Since this goes last on the compiler commandline we have to override it to a |
| # sane value for cross-build here. Notice some gcc versions enable broken |
| # optimizations with -O3. |
| # |
| if (CMAKE_BUILD_TYPE MATCHES RELEASE OR CMAKE_BUILD_TYPE MATCHES Release OR CMAKE_BUILD_TYPE MATCHES release) |
| set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O2") |
| set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O2") |
| endif() |
| |
| SET(CMAKE_C_FLAGS "-nostdlib -Wall -Werror \ |
| -I${BUILD_DIR_BASE}/include \ |
| -I${IDF_PATH}/components/newlib/platform_include \ |
| -I${IDF_PATH}/components/mdns/include \ |
| -I${IDF_PATH}/components/heap/include \ |
| -I${IDF_PATH}/components/driver/include \ |
| -I${IDF_PATH}/components/spi_flash/include \ |
| -I${IDF_PATH}/components/nvs_flash/include \ |
| -I${IDF_PATH}/components/tcpip_adapter/include \ |
| -I${IDF_PATH}/components/lwip/include/lwip/posix \ |
| -I${IDF_PATH}/components/lwip/include/lwip \ |
| -I${IDF_PATH}/components/lwip/include/lwip/port \ |
| -I${IDF_PATH}/components/esp32/include/ \ |
| -I${IDF_PATH}/components/bootloader_support/include/ \ |
| -I${IDF_PATH}/components/app_update/include/ \ |
| -I$(IDF_PATH)/components/soc/esp32/include/ \ |
| -I$(IDF_PATH)/components/soc/include/ \ |
| -I$(IDF_PATH)/components/vfs/include/ \ |
| ${LWS_C_FLAGS} -Os \ |
| -I${IDF_PATH}/components/nvs_flash/test_nvs_host \ |
| -I${IDF_PATH}/components/freertos/include" CACHE STRING "" FORCE) |
| |
| # Where to look for the target environment. (More paths can be added here) |
| set(CMAKE_FIND_ROOT_PATH "${CROSS_PATH}") |
| |
| # Adjust the default behavior of the FIND_XXX() commands: |
| # search programs in the host environment only. |
| set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) |
| |
| # Search headers and libraries in the target environment only. |
| set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) |
| set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) |
| |