62 lines
3.4 KiB
CMake
62 lines
3.4 KiB
CMake
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# This is a copy of <FREERTOS_KERNEL_PATH>/portable/ThirdParty/GCC/RP2040/FREERTOS_KERNEL_import.cmake
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# This can be dropped into an external project to help locate the FreeRTOS kernel
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# It should be include()ed prior to project(). Alternatively this file may
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# or the CMakeLists.txt in this directory may be included or added via add_subdirectory
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# respectively.
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if (DEFINED ENV{FREERTOS_KERNEL_PATH} AND (NOT FREERTOS_KERNEL_PATH))
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set(FREERTOS_KERNEL_PATH $ENV{FREERTOS_KERNEL_PATH})
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message("Using FREERTOS_KERNEL_PATH from environment ('${FREERTOS_KERNEL_PATH}')")
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endif ()
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set(FREERTOS_KERNEL_RP2040_RELATIVE_PATH "portable/ThirdParty/GCC/RP2040")
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# undo the above
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set(FREERTOS_KERNEL_RP2040_BACK_PATH "../../../..")
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if (NOT FREERTOS_KERNEL_PATH)
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# check if we are inside the FreeRTOS kernel tree (i.e. this file has been included directly)
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get_filename_component(_ACTUAL_PATH ${CMAKE_CURRENT_LIST_DIR} REALPATH)
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get_filename_component(_POSSIBLE_PATH ${CMAKE_CURRENT_LIST_DIR}/${FREERTOS_KERNEL_RP2040_BACK_PATH}/${FREERTOS_KERNEL_RP2040_RELATIVE_PATH} REALPATH)
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if (_ACTUAL_PATH STREQUAL _POSSIBLE_PATH)
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get_filename_component(FREERTOS_KERNEL_PATH ${CMAKE_CURRENT_LIST_DIR}/${FREERTOS_KERNEL_RP2040_BACK_PATH} REALPATH)
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endif()
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if (_ACTUAL_PATH STREQUAL _POSSIBLE_PATH)
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get_filename_component(FREERTOS_KERNEL_PATH ${CMAKE_CURRENT_LIST_DIR}/${FREERTOS_KERNEL_RP2040_BACK_PATH} REALPATH)
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message("Setting FREERTOS_KERNEL_PATH to ${FREERTOS_KERNEL_PATH} based on location of FreeRTOS-Kernel-import.cmake")
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elseif (PICO_SDK_PATH AND EXISTS "${PICO_SDK_PATH}/../FreeRTOS-Kernel")
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set(FREERTOS_KERNEL_PATH ${PICO_SDK_PATH}/../FreeRTOS-Kernel)
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message("Defaulting FREERTOS_KERNEL_PATH as sibling of PICO_SDK_PATH: ${FREERTOS_KERNEL_PATH}")
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endif()
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endif ()
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if (NOT FREERTOS_KERNEL_PATH)
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foreach(POSSIBLE_SUFFIX Source FreeRTOS-Kernel FreeRTOS/Source)
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# check if FreeRTOS-Kernel exists under directory that included us
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set(SEARCH_ROOT ${CMAKE_CURRENT_SOURCE_DIR}})
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set(SEARCH_ROOT ../../../..)
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get_filename_component(_POSSIBLE_PATH ${SEARCH_ROOT}/${POSSIBLE_SUFFIX} REALPATH)
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if (EXISTS ${_POSSIBLE_PATH}/${FREERTOS_KERNEL_RP2040_RELATIVE_PATH}/CMakeLists.txt)
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get_filename_component(FREERTOS_KERNEL_PATH ${_POSSIBLE_PATH} REALPATH)
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message("Setting FREERTOS_KERNEL_PATH to '${FREERTOS_KERNEL_PATH}' found relative to enclosing project")
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break()
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endif()
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endforeach()
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endif()
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if (NOT FREERTOS_KERNEL_PATH)
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message(FATAL_ERROR "FreeRTOS location was not specified. Please set FREERTOS_KERNEL_PATH.")
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endif()
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set(FREERTOS_KERNEL_PATH "${FREERTOS_KERNEL_PATH}" CACHE PATH "Path to the FreeRTOS Kernel")
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get_filename_component(FREERTOS_KERNEL_PATH "${FREERTOS_KERNEL_PATH}" REALPATH BASE_DIR "${CMAKE_BINARY_DIR}")
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if (NOT EXISTS ${FREERTOS_KERNEL_PATH})
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message(FATAL_ERROR "Directory '${FREERTOS_KERNEL_PATH}' not found")
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endif()
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if (NOT EXISTS ${FREERTOS_KERNEL_PATH}/${FREERTOS_KERNEL_RP2040_RELATIVE_PATH}/CMakeLists.txt)
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message(FATAL_ERROR "Directory '${FREERTOS_KERNEL_PATH}' does not contain an RP2040 port here: ${FREERTOS_KERNEL_RP2040_RELATIVE_PATH}")
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endif()
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set(FREERTOS_KERNEL_PATH ${FREERTOS_KERNEL_PATH} CACHE PATH "Path to the FreeRTOS_KERNEL" FORCE)
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add_subdirectory(${FREERTOS_KERNEL_PATH}/${FREERTOS_KERNEL_RP2040_RELATIVE_PATH} FREERTOS_KERNEL)
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