87 lines
3.2 KiB
CMake
87 lines
3.2 KiB
CMake
# SPDX-License-Identifier: Apache-2.0
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#
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# Copyright (c) 2022, Nordic Semiconductor ASA
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# FindZephyr-sdk module for supporting module search mode of Zephyr SDK.
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#
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# Its purpose is to allow the find_package basic signature mode to lookup Zephyr
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# SDK and based on user / environment settings of selected toolchain decide if
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# the Zephyr SDK CMake package should be loaded.
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#
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# It extends the Zephyr-sdk CMake package by providing more flexibility in when
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# the Zephyr SDK is loaded and loads additional host tools from the Zephyr SDK.
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#
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# The module defines the following variables:
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#
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# 'ZEPHYR_SDK_INSTALL_DIR'
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# Install location of the Zephyr SDK
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#
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# 'ZEPHYR_TOOLCHAIN_VARIANT'
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# Zephyr toolchain variant to use if not defined already.
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#
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# 'Zephyr-sdk_FOUND'
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# True if the Zephyr SDK was found.
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# Set internal variables if set in environment.
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zephyr_get(ZEPHYR_TOOLCHAIN_VARIANT)
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zephyr_get(ZEPHYR_SDK_INSTALL_DIR)
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# Load Zephyr SDK Toolchain.
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# There are three scenarios where Zephyr SDK should be looked up:
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# 1) Zephyr specified as toolchain (ZEPHYR_SDK_INSTALL_DIR still used if defined)
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# 2) No toolchain specified == Default to Zephyr toolchain
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# Until we completely deprecate it
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if(("zephyr" STREQUAL ${ZEPHYR_TOOLCHAIN_VARIANT}) OR
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(NOT DEFINED ZEPHYR_TOOLCHAIN_VARIANT) OR
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(DEFINED ZEPHYR_SDK_INSTALL_DIR))
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# No toolchain was specified, so inform user that we will be searching.
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if (NOT DEFINED ZEPHYR_SDK_INSTALL_DIR AND
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NOT DEFINED ZEPHYR_TOOLCHAIN_VARIANT)
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message(STATUS "ZEPHYR_TOOLCHAIN_VARIANT not set, trying to locate Zephyr SDK")
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endif()
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# This ensure packages are sorted in descending order.
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SET(CMAKE_FIND_PACKAGE_SORT_DIRECTION_CURRENT ${CMAKE_FIND_PACKAGE_SORT_DIRECTION})
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SET(CMAKE_FIND_PACKAGE_SORT_ORDER_CURRENT ${CMAKE_FIND_PACKAGE_SORT_ORDER})
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SET(CMAKE_FIND_PACKAGE_SORT_DIRECTION DEC)
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SET(CMAKE_FIND_PACKAGE_SORT_ORDER NATURAL)
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if(DEFINED ZEPHYR_SDK_INSTALL_DIR)
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# The Zephyr SDK will automatically set the toolchain variant.
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# To support Zephyr SDK tools (DTC, and other tools) with 3rd party toolchains
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# then we keep track of current toolchain variant.
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set(ZEPHYR_CURRENT_TOOLCHAIN_VARIANT ${ZEPHYR_TOOLCHAIN_VARIANT})
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find_package(Zephyr-sdk ${Zephyr-sdk_FIND_VERSION}
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REQUIRED QUIET CONFIG HINTS ${ZEPHYR_SDK_INSTALL_DIR}
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)
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if(DEFINED ZEPHYR_CURRENT_TOOLCHAIN_VARIANT)
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set(ZEPHYR_TOOLCHAIN_VARIANT ${ZEPHYR_CURRENT_TOOLCHAIN_VARIANT})
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endif()
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else()
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find_package(Zephyr-sdk ${Zephyr-sdk_FIND_VERSION} REQUIRED QUIET CONFIG PATHS
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/usr
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/usr/local
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/opt
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$ENV{HOME}
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$ENV{HOME}/.local
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$ENV{HOME}/.local/opt
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$ENV{HOME}/bin)
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endif()
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SET(CMAKE_FIND_PACKAGE_SORT_DIRECTION ${CMAKE_FIND_PACKAGE_SORT_DIRECTION_CURRENT})
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SET(CMAKE_FIND_PACKAGE_SORT_ORDER ${CMAKE_FIND_PACKAGE_SORT_ORDER_CURRENT})
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endif()
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if(DEFINED ZEPHYR_SDK_INSTALL_DIR)
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# Cache the Zephyr SDK install dir.
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set(ZEPHYR_SDK_INSTALL_DIR ${ZEPHYR_SDK_INSTALL_DIR} CACHE PATH "Zephyr SDK install directory")
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endif()
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if(Zephyr-sdk_FOUND)
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include(${ZEPHYR_SDK_INSTALL_DIR}/cmake/zephyr/host-tools.cmake)
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message(STATUS "Found host-tools: zephyr ${SDK_VERSION} (${ZEPHYR_SDK_INSTALL_DIR})")
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endif()
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