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https://libwebsockets.org/repo/libwebsockets
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cabe021955
Esp-idf has an improved but still kind of abused cmake- based build system now. If we see ESP_PLATFORM coming as a cmake var, we can know we are being built from inside the esp-idf config system. Leave the existing esp32 arrangements alone but triggered off ESP_PLATFORM, adapt to use the cross toolchain file and various quirks automatically. In this way you can build lws a part of your project in a much cleaner way. Prepare a minimal esp32 test app for use in Sai Adapt .sai.json to build for esp32
69 lines
2.6 KiB
CMake
69 lines
2.6 KiB
CMake
#
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# CMake Toolchain file for crosscompiling on ARM.
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#
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# This can be used when running cmake in the following way:
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# cd build/
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# cmake .. -DCMAKE_TOOLCHAIN_FILE=../cross-arm-linux-gnueabihf.cmake
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#
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# Target operating system name.
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set(CMAKE_SYSTEM_NAME Linux)
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# assumed these are set up on the $PATH
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set(TC xtensa-esp32-elf)
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set(CMAKE_C_COMPILER "${TC}-gcc${EXECUTABLE_EXT}")
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set(CMAKE_AR "${TC}-ar${EXECUTABLE_EXT}")
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set(CMAKE_RANLIB "${TC}-ranlib${EXECUTABLE_EXT}")
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set(CMAKE_LINKER "${TC}-ld${EXECUTABLE_EXT}")
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#
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# Different build system distros set release optimization level to different
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# things according to their local policy, eg, Fedora is -O2 and Ubuntu is -O3
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# here. Actually the build system's local policy is completely unrelated to
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# our desire for cross-build release optimization policy for code built to run
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# on a completely different target than the build system itself.
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#
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# Since this goes last on the compiler commandline we have to override it to a
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# sane value for cross-build here. Notice some gcc versions enable broken
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# optimizations with -O3.
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#
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if (CMAKE_BUILD_TYPE MATCHES RELEASE OR CMAKE_BUILD_TYPE MATCHES Release OR CMAKE_BUILD_TYPE MATCHES release)
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set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O2")
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set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O2")
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endif()
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SET(CMAKE_C_FLAGS "-nostdlib -Wall -Werror \
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-I${BUILD_DIR_BASE}/include \
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-I${IDF_PATH}/components/newlib/platform_include \
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-I${IDF_PATH}/components/mdns/include \
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-I${IDF_PATH}/components/heap/include \
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-I${IDF_PATH}/components/driver/include \
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-I${IDF_PATH}/components/spi_flash/include \
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-I${IDF_PATH}/components/nvs_flash/include \
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-I${IDF_PATH}/components/tcpip_adapter/include \
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-I${IDF_PATH}/components/lwip/include/lwip/posix \
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-I${IDF_PATH}/components/lwip/include/lwip \
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-I${IDF_PATH}/components/lwip/include/lwip/port \
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-I${IDF_PATH}/components/esp32/include/ \
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-I${IDF_PATH}/components/bootloader_support/include/ \
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-I${IDF_PATH}/components/app_update/include/ \
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-I$(IDF_PATH)/components/soc/esp32/include/ \
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-I$(IDF_PATH)/components/soc/include/ \
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-I$(IDF_PATH)/components/vfs/include/ \
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${LWS_C_FLAGS} -Os \
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-I${IDF_PATH}/components/nvs_flash/test_nvs_host \
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-I${IDF_PATH}/components/freertos/include" CACHE STRING "" FORCE)
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# Where to look for the target environment. (More paths can be added here)
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set(CMAKE_FIND_ROOT_PATH "${CROSS_PATH}")
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# Adjust the default behavior of the FIND_XXX() commands:
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# search programs in the host environment only.
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set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
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# Search headers and libraries in the target environment only.
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set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
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set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
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