136 lines
5.0 KiB
CMake
136 lines
5.0 KiB
CMake
# ##############################################################################
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# cmake/nuttx_export_headers.cmake
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more contributor
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# license agreements. See the NOTICE file distributed with this work for
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# additional information regarding copyright ownership. The ASF licenses this
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# file to you under the Apache License, Version 2.0 (the "License"); you may not
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# use this file except in compliance with the License. You may obtain a copy of
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# the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations under
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# the License.
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#
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# ##############################################################################
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include(nuttx_parse_function_args)
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# export_relative_path_recursively
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#
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# Used to recursively add all header files under the `include_directory` to the
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# `include_path` directory and preserve their relative relationship
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#
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# When the target relative path is repeated and the original path is different
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# throws an exception and abort the build
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function(export_relative_path_recursively include_path export_path
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include_directory)
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# recursively find header files under the path
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file(GLOB_RECURSE FOUND_FILES ${include_directory}/*.h)
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if(FOUND_FILES)
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foreach(FOUND_FILE ${FOUND_FILES})
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if(EXISTS ${FOUND_FILE})
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# take relative path
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file(RELATIVE_PATH REL_FILE ${include_directory} ${FOUND_FILE})
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# check for path conflicts
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string(REPLACE "/" "_" CHECK_PROP _check_${prefix}_${REL_FILE})
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get_property(REL_FILE_CHECK GLOBAL PROPERTY ${CHECK_PROP})
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if(REL_FILE_CHECK AND NOT REL_FILE_CHECK STREQUAL FOUND_FILE)
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message(
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FATAL_ERROR
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"Error: NUTTX_ADD_APPS_HEADER add a duplicate header files ${FOUND_FILE} ${REL_FILE_CHECK}"
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)
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endif()
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set_property(GLOBAL PROPERTY ${CHECK_PROP} ${FOUND_FILE})
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message(
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VERBOSE
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"NUTTX_ADD_APPS_HEADER: REL_FILE found: ${REL_FILE} in ${INCDIR}")
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# create symbolic link for origin
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file(CREATE_LINK ${FOUND_FILE} ${include_path}/${REL_FILE}
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COPY_ON_ERROR SYMBOLIC)
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# do export to the BINAPPS/include directory
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get_filename_component(DES_PATH ${export_path}/${REL_FILE} DIRECTORY)
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install(FILES ${FOUND_FILE} DESTINATION ${DES_PATH})
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endif()
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endforeach()
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endif()
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endfunction()
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# ~~~
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# nuttx_export_header
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#
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# Description:
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# Export include directory to apps global include path.
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# `${NUTTX_APPS_BINDIR}/include/${TARGET}`
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# preserve relative paths to all header files.
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#
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# In the original GNU Make build, we use `Make.defs` to add the global include path,
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# and the private include path of the application library is written in the `Makefile`
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# In Nuttx CMake build, we achieve similar global functionality through this function.
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#
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# Usage:
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# nuttx_export_header(TARGET <string> INCLUDE_DIRECTORIES <list>)
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#
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# Parameters:
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# TARGET : target for exporting header directory
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# INCLUDE_DIRECTORIES : directory list to be exported
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#
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# Example:
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# set(INCDIRS foo/include)
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# nuttx_export_header(TARGET foo INCLUDE_DIRECTORIES ${INCDIRS})
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#
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# foo/include/ build/apps/include/foo/
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# ├── demo/ ├── demo/
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# | └── demo.h cmake --build:origin link | └── demo.h
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# ├── test/ =====================> ├── test/
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# | └── test.h cmake --install:export | └── test.h
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# └── foo.h └── foo.h
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# ~~~
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function(nuttx_export_header)
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# parse arguments into variables
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nuttx_parse_function_args(
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FUNC
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nuttx_export_header
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ONE_VALUE
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TARGET
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MULTI_VALUE
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INCLUDE_DIRECTORIES
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REQUIRED
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TARGET
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INCLUDE_DIRECTORIES
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ARGN
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${ARGN})
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# destination directory to be exported by install
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set(EXPORT_PATH_PREFIX ${CMAKE_BINARY_DIR}/staging/include/${TARGET})
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# destination directory origin compile
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set(INCLUDE_PATH_PREFIX ${NUTTX_APPS_BINDIR}/include/${TARGET})
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foreach(INCDIR ${INCLUDE_DIRECTORIES})
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if(NOT EXISTS ${INCDIR})
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message(
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WARNING
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"warning: NUTTX_EXPORT_HEADER ${TARGET} added a path that does not exist ${INCDIR}"
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)
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else()
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if(IS_DIRECTORY ${INCDIR})
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# export relative path to directories
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export_relative_path_recursively(${INCLUDE_PATH_PREFIX}
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${EXPORT_PATH_PREFIX} ${INCDIR})
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else()
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# export single file
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file(CREATE_LINK ${INCDIR} ${INCLUDE_PATH_PREFIX}/${INCDIR}
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COPY_ON_ERROR SYMBOLIC)
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install(FILES ${INCDIR} DESTINATION ${EXPORT_PATH_PREFIX})
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endif()
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endif()
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endforeach()
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endfunction()
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