esp-idf/components/bootloader/project_include.cmake
Renz Christian Bagaporo 927007fdd2 cmake: fix custom bootloader issue
Issue is that when users creates a custom bootloader from
$IDF_PATH/components/bootloader. Parent project build uses the copy but
bootloader subproject build uses the original still. The issue is solved
by passing the custom bootloader as extra component directory so
bootloader build knows to use the new copy (itself) in the build.
2019-05-17 15:17:32 +08:00

82 lines
3.2 KiB
CMake

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