mirror of
https://github.com/espressif/esp-idf.git
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86 lines
3.5 KiB
CMake
86 lines
3.5 KiB
CMake
# Do not generate flash file when building bootloader or is in early expansion of the build
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if(BOOTLOADER_BUILD)
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return()
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endif()
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idf_build_get_property(project_dir PROJECT_DIR)
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# This is for tracking the top level project path
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if(BOOTLOADER_BUILD)
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set(main_project_path "${CMAKE_BINARY_DIR}/../..")
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else()
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set(main_project_path "${project_dir}")
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endif()
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get_filename_component(secure_boot_signing_key
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"${CONFIG_SECURE_BOOT_SIGNING_KEY}"
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ABSOLUTE BASE_DIR "${main_project_path}")
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if(NOT EXISTS ${secure_boot_signing_key})
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# If the signing key is not found, create a phony gen_secure_boot_signing_key target that
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# fails the build. fail_at_build_time also touches CMakeCache.txt to cause a cmake run next time
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# (to pick up a new signing key if one exists, etc.)
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fail_at_build_time(gen_secure_boot_signing_key
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"Secure Boot Signing Key ${CONFIG_SECURE_BOOT_SIGNING_KEY} does not exist. Generate using:"
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"\tespsecure.py generate_signing_key ${CONFIG_SECURE_BOOT_SIGNING_KEY}")
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else()
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add_custom_target(gen_secure_boot_signing_key)
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endif()
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# Glue to build the bootloader subproject binary as an external
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# cmake project under this one
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#
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#
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idf_build_get_property(build_dir BUILD_DIR)
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set(BOOTLOADER_BUILD_DIR "${build_dir}/bootloader")
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set(bootloader_binary_files
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"${BOOTLOADER_BUILD_DIR}/bootloader.elf"
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"${BOOTLOADER_BUILD_DIR}/bootloader.bin"
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"${BOOTLOADER_BUILD_DIR}/bootloader.map"
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)
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# These additional files may get generated
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if(CONFIG_SECURE_BOOTLOADER_REFLASHABLE)
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set(bootloader_binary_files
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${bootloader_binary_files}
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"${BOOTLOADER_BUILD_DIR}/bootloader-reflash-digest.bin"
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"${BOOTLOADER_BUILD_DIR}/secure-bootloader-key-192.bin"
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"${BOOTLOADER_BUILD_DIR}/secure-bootloader-key-256.bin"
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)
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endif()
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if((NOT CONFIG_SECURE_BOOT_ENABLED) OR
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CONFIG_SECURE_BOOTLOADER_REFLASHABLE OR
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CONFIG_SECURE_BOOTLOADER_ONE_TIME_FLASH)
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idf_build_get_property(idf_path IDF_PATH)
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idf_build_get_property(sdkconfig SDKCONFIG)
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idf_build_get_property(idf_target IDF_TARGET)
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externalproject_add(bootloader
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# TODO: support overriding the bootloader in COMPONENT_PATHS
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SOURCE_DIR "${CMAKE_CURRENT_LIST_DIR}/subproject"
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BINARY_DIR "${BOOTLOADER_BUILD_DIR}"
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CMAKE_ARGS -DSDKCONFIG=${sdkconfig} -DIDF_PATH=${idf_path} -DIDF_TARGET=${idf_target}
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-DSECURE_BOOT_SIGNING_KEY=${secure_boot_signing_key}
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-DPYTHON_DEPS_CHECKED=1
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-DEXTRA_COMPONENT_DIRS=${CMAKE_CURRENT_LIST_DIR}
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# LEGACY_INCLUDE_COMMON_HEADERS has to be passed in via cache variable since
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# the bootloader common component requirements depends on this and
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# config variables are not available before project() call.
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-DLEGACY_INCLUDE_COMMON_HEADERS=${CONFIG_LEGACY_INCLUDE_COMMON_HEADERS}
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INSTALL_COMMAND ""
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BUILD_ALWAYS 1 # no easy way around this...
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BUILD_BYPRODUCTS ${bootloader_binary_files}
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DEPENDS gen_secure_boot_signing_key
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)
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else()
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fail_at_build_time(bootloader "Invalid bootloader target: bad sdkconfig?")
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endif()
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# this is a hack due to an (annoying) shortcoming in cmake, it can't
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# extend the 'clean' target to the external project
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# see thread: https://cmake.org/pipermail/cmake/2016-December/064660.html
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#
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# So for now we just have the top-level build remove the final build products...
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set_property(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}" APPEND PROPERTY
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ADDITIONAL_MAKE_CLEAN_FILES
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${bootloader_binary_files}) |