102 lines
3.5 KiB
CMake
102 lines
3.5 KiB
CMake
# SPDX-License-Identifier: Apache-2.0
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#
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# Copyright (c) 2021, Nordic Semiconductor ASA
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# The Zephyr package helper script provides a generic script mode interface
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# to the Zephyr CMake package and module structure.
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#
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# The purpose of this script is to provide a single entry for running any Zephyr
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# build tool that is executed during CMake configure time without creating a
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# complete build system.
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#
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# It does so by loading the Zephyr CMake modules specified with the 'MODULES'
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# argument.
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#
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# This script executes the given module identical to Zephyr CMake configure time.
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# The application source directory must be specified using
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# '-S <path-to-sample>'
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#
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# The build directory will default to current working directory but can be
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# controlled with: '-B <path-to-build>'
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#
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# For example, if you were invoking CMake for 'hello_world' sample as:
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# $ cmake -DBOARD=<board> -B build -S samples/hello_world
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#
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# you can invoke only dts module (and dependencies) as:
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# $ cmake -DBOARD=<board> -B build -S samples/hello_world \
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# -DMODULES=dts -P <ZEPHYR_BASE>/cmake/package_helper.cmake
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#
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# It is also possible to pass additional build settings.
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# If you invoke CMake for 'hello_world' as:
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#
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# $ cmake -DBOARD=<board> -B build -S samples/hello_world -DEXTRA_CONF_FILE=foo.conf
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#
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# you just add the same argument to the helper like:
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# $ cmake -DBOARD=<board> -B build -S samples/hello_world -DEXTRA_CONF_FILE=foo.conf \
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# -DMODULES=dts -P <ZEPHYR_BASE>/cmake/package_helper.cmake
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#
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# Note: the samples CMakeLists.txt file is not processed by package helper, so
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# any 'set(<var> <value>)' specified before 'find_package(Zephyr)' must be
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# manually applied, for example if the CMakeLists.txt contains:
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# set(EXTRA_CONF_FILE foo.conf)
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# find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
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# the 'foo.conf' must be specified using '-DEXTRA_CONF_FILE=foo.conf'
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cmake_minimum_required(VERSION 3.20.5)
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# Find last `-B` and `-S` instances.
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foreach(i RANGE ${CMAKE_ARGC})
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if(CMAKE_ARGV${i} MATCHES "^-B(.*)")
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set(argB ${CMAKE_MATCH_1})
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set(argB_index ${i})
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elseif()
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elseif(CMAKE_ARGV${i} MATCHES "^-S(.*)")
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set(argS_index ${i})
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set(argS ${CMAKE_MATCH_1})
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endif()
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endforeach()
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if(DEFINED argB_index)
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if(DEFINED argB)
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set(CMAKE_BINARY_DIR ${argB})
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else()
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# value of -B follows in next index
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math(EXPR argB_value_index "${argB_index} + 1")
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set(CMAKE_BINARY_DIR ${CMAKE_ARGV${argB_value_index}})
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endif()
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endif()
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if(DEFINED argS_index)
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if(DEFINED argS)
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set(APPLICATION_SOURCE_DIR ${argS})
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else()
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# value of -S follows in next index
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math(EXPR argS_value_index "${argS_index} + 1")
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set(APPLICATION_SOURCE_DIR ${CMAKE_ARGV${argS_value_index}})
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endif()
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endif()
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if(NOT DEFINED APPLICATION_SOURCE_DIR)
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message(FATAL_ERROR
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"Source directory not defined, please use '-S <path-to-source>' to the "
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"application for which this tool shall run.\n"
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"For example: -S ${ZEPHYR_BASE}/samples/hello_world"
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)
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endif()
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if(DEFINED APPLICATION_SOURCE_DIR)
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cmake_path(ABSOLUTE_PATH APPLICATION_SOURCE_DIR NORMALIZE)
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endif()
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cmake_path(ABSOLUTE_PATH CMAKE_BINARY_DIR NORMALIZE)
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set(CMAKE_CURRENT_BINARY_DIR ${CMAKE_BINARY_DIR})
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if(NOT DEFINED MODULES)
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message(FATAL_ERROR
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"No MODULES defined, please invoke package helper with minimum one module"
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" to execute in script mode."
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)
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endif()
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string(REPLACE ";" "," MODULES "${MODULES}")
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find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE} COMPONENTS zephyr_default:${MODULES})
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