zephyr/doc/CMakeLists.txt
Torsten Rasmussen 1cccc8a8fe cmake: increase minimal required version to 3.20.0
Move to CMake 3.20.0.

At the Toolchain WG it was decided to move to CMake 3.20.0.

The main reason for increasing CMake version is better toolchain
support.

Better toolchain support is added in the following CMake versions:
- armclang, CMake 3.15
- Intel oneAPI, CMake 3.20
- IAR, CMake 3.15 and 3.20

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2021-08-20 09:47:34 +02:00

277 lines
7.7 KiB
CMake

# SPDX-License-Identifier: Apache-2.0
cmake_minimum_required(VERSION 3.20.0)
project(Zephyr-Kernel-Doc LANGUAGES)
set(NO_BOILERPLATE TRUE)
find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE} ..)
file(TO_CMAKE_PATH "${ZEPHYR_BASE}" ZEPHYR_BASE)
message(STATUS "Zephyr base: ${ZEPHYR_BASE}")
#-------------------------------------------------------------------------------
# Options
set(SPHINXOPTS "-j auto" CACHE STRING "Default Sphinx Options")
set(LATEXMKOPTS "-halt-on-error -no-shell-escape" CACHE STRING "Default latexmk options")
set(DOC_TAG "development" CACHE STRING "Documentation tag")
set(DTS_ROOTS "${ZEPHYR_BASE}" CACHE STRING "DT bindings root folders")
separate_arguments(SPHINXOPTS)
separate_arguments(LATEXMKOPTS)
#-------------------------------------------------------------------------------
# Dependencies
find_package(Doxygen REQUIRED dot)
find_program(SPHINXBUILD sphinx-build)
if(NOT SPHINXBUILD)
message(FATAL_ERROR "The 'sphinx-build' command was not found")
endif()
find_package(LATEX COMPONENTS PDFLATEX)
find_program(LATEXMK latexmk)
if(NOT LATEX_PDFLATEX_FOUND OR NOT LATEXMK)
message(WARNING "LaTeX components not found. PDF build will not be available.")
endif()
include(${ZEPHYR_BASE}/cmake/python.cmake)
# Find west to (optionally) process modules for Kconfig
find_program(WEST west)
#-------------------------------------------------------------------------------
# Environment & Paths
set(SPHINX_ENV
DOXYGEN_EXECUTABLE=${DOXYGEN_EXECUTABLE}
DOT_EXECUTABLE=${DOXYGEN_DOT_EXECUTABLE}
)
set(DOCS_CFG_DIR ${CMAKE_CURRENT_LIST_DIR})
set(DOCS_DOCTREE_DIR ${CMAKE_CURRENT_BINARY_DIR}/doctrees)
set(DOCS_BUILD_DIR ${CMAKE_CURRENT_BINARY_DIR})
set(DOCS_SRC_DIR ${CMAKE_CURRENT_BINARY_DIR}/src)
set(DOCS_HTML_DIR ${CMAKE_CURRENT_BINARY_DIR}/html)
set(DOCS_LATEX_DIR ${CMAKE_CURRENT_BINARY_DIR}/latex)
#-------------------------------------------------------------------------------
# Functions
# Create a custom doc target.
#
# This function has the same signature as `add_custom_target()`
#
# The function will create two targets for the doc build system.
# - Target 1 named: `<name>`
# - Target 2 named: `<name>-nodeps`
#
# Both targets will produce same result, but target 2 must have no dependencies.
# This is useful to, e.g. re-run the Sphinx build without dependencies such as
# devicetree or Kconfig generators.
#
function(add_doc_target name)
add_custom_target(${name} ${ARGN})
add_custom_target(${name}-nodeps ${ARGN})
endfunction()
#-------------------------------------------------------------------------------
# Doxygen (standalone)
set(DOXY_OUT ${CMAKE_CURRENT_BINARY_DIR}/doxygen)
set(DOXYFILE_IN ${CMAKE_CURRENT_LIST_DIR}/zephyr.doxyfile.in)
set(DOXYFILE_OUT ${CMAKE_CURRENT_BINARY_DIR}/zephyr.doxyfile)
configure_file(${DOXYFILE_IN} ${DOXYFILE_OUT} @ONLY)
add_custom_target(
doxygen
COMMAND
${DOXYGEN_EXECUTABLE} ${DOXYFILE_OUT}
COMMENT "Running Doxygen..."
)
set_target_properties(
doxygen
PROPERTIES
ADDITIONAL_CLEAN_FILES "${DOXY_OUT}"
)
#-------------------------------------------------------------------------------
# kconfig
set(KCONFIG_BINARY_DIR ${CMAKE_BINARY_DIR}/Kconfig)
list(INSERT MODULE_EXT_ROOT 0 ${ZEPHYR_BASE})
file(MAKE_DIRECTORY ${KCONFIG_BINARY_DIR})
include(${ZEPHYR_BASE}/cmake/extensions.cmake)
include(${ZEPHYR_BASE}/cmake/zephyr_module.cmake)
foreach(module_name ${ZEPHYR_MODULE_NAMES})
zephyr_string(SANITIZE TOUPPER MODULE_NAME_UPPER ${module_name})
list(APPEND
ZEPHYR_KCONFIG_MODULES
"ZEPHYR_${MODULE_NAME_UPPER}_MODULE_DIR=${ZEPHYR_${MODULE_NAME_UPPER}_MODULE_DIR}"
)
if(ZEPHYR_${MODULE_NAME_UPPER}_KCONFIG)
list(APPEND
ZEPHYR_KCONFIG_MODULES
"ZEPHYR_${MODULE_NAME_UPPER}_KCONFIG=${ZEPHYR_${MODULE_NAME_UPPER}_KCONFIG}"
)
endif()
endforeach()
if(WIN32)
set(SEP $<SEMICOLON>)
else()
set(SEP :)
endif()
set(GEN_KCONFIG_REST_SCRIPT ${CMAKE_CURRENT_LIST_DIR}/_scripts/gen_kconfig_rest.py)
add_custom_target(
kconfig
COMMAND ${CMAKE_COMMAND} -E make_directory ${DOCS_SRC_DIR}/reference/kconfig
COMMAND ${CMAKE_COMMAND} -E env
PYTHONPATH=${ZEPHYR_BASE}/scripts/kconfig${SEP}$ENV{PYTHONPATH}
ZEPHYR_BASE=${ZEPHYR_BASE}
srctree=${ZEPHYR_BASE}
BOARD_DIR=boards/*/*
ARCH=*
ARCH_DIR=arch
SOC_DIR=soc
KCONFIG_BINARY_DIR=${KCONFIG_BINARY_DIR}
KCONFIG_WARN_UNDEF=y
KCONFIG_TURBO_MODE=${KCONFIG_TURBO_MODE}
KCONFIG_DOC_MODE=1
${ZEPHYR_KCONFIG_MODULES}
${PYTHON_EXECUTABLE} ${GEN_KCONFIG_REST_SCRIPT} ${DOCS_SRC_DIR}/reference/kconfig/
--separate-all-index
--keep-module-paths
--modules Architecture,arch,${ZEPHYR_BASE}/arch
Driver,drivers,${ZEPHYR_BASE}/drivers
Kernel,kernel,${ZEPHYR_BASE}/kernel
Library,lib,${ZEPHYR_BASE}/lib
Subsystem,subsys,${ZEPHYR_BASE}/subsys
"External Module,modules,${ZEPHYR_BASE}/modules"
VERBATIM
COMMENT "Generating Kconfig documentation..."
)
set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS ${GEN_KCONFIG_REST_SCRIPT})
#-------------------------------------------------------------------------------
# devicetree
set(GEN_DEVICETREE_REST_SCRIPT ${CMAKE_CURRENT_LIST_DIR}/_scripts/gen_devicetree_rest.py)
set(DTS_ROOT_ARGS)
foreach(root ${DTS_ROOTS})
list(APPEND DTS_ROOT_ARGS --dts-root ${root})
endforeach()
add_custom_target(
devicetree
COMMAND ${CMAKE_COMMAND} -E env
PYTHONPATH=${ZEPHYR_BASE}/scripts/dts/python-devicetree/src${SEP}$ENV{PYTHONPATH}
ZEPHYR_BASE=${ZEPHYR_BASE}
${PYTHON_EXECUTABLE} ${GEN_DEVICETREE_REST_SCRIPT}
--vendor-prefixes ${ZEPHYR_BASE}/dts/bindings/vendor-prefixes.txt
${DTS_ROOT_ARGS}
${DOCS_SRC_DIR}/reference/devicetree
VERBATIM
USES_TERMINAL
COMMENT "Generating Devicetree bindings documentation..."
)
set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS ${GEN_DEVICETREE_REST_SCRIPT})
#-------------------------------------------------------------------------------
# html
add_doc_target(
html
COMMAND ${CMAKE_COMMAND} -E env ${SPHINX_ENV}
${SPHINXBUILD}
-b html
-c ${DOCS_CFG_DIR}
-d ${DOCS_DOCTREE_DIR}
-w ${DOCS_BUILD_DIR}/html.log
-t ${DOC_TAG}
${SPHINXOPTS}
${DOCS_SRC_DIR}
${DOCS_HTML_DIR}
USES_TERMINAL
COMMENT "Running Sphinx HTML build..."
)
set_target_properties(
html html-nodeps
PROPERTIES
ADDITIONAL_CLEAN_FILES "${DOCS_SRC_DIR};${DOCS_HTML_DIR};${DOCS_DOCTREE_DIR}"
)
add_dependencies(html devicetree kconfig)
#-------------------------------------------------------------------------------
# pdf
add_doc_target(
latex
COMMAND ${CMAKE_COMMAND} -E env ${SPHINX_ENV}
${SPHINXBUILD}
-b latex
-c ${DOCS_CFG_DIR}
-d ${DOCS_DOCTREE_DIR}
-w ${DOCS_BUILD_DIR}/latex.log
-t ${DOC_TAG}
-t svgconvert
${SPHINXOPTS}
${DOCS_SRC_DIR}
${DOCS_LATEX_DIR}
USES_TERMINAL
COMMENT "Running Sphinx LaTeX build..."
)
set_target_properties(
latex latex-nodeps
PROPERTIES
ADDITIONAL_CLEAN_FILES "${DOCS_SRC_DIR};${DOCS_LATEX_DIR};${DOCS_DOCTREE_DIR}"
)
add_dependencies(latex kconfig devicetree)
if(LATEX_PDFLATEX_FOUND AND LATEXMK)
if(WIN32)
set(PDF_BUILD_COMMAND "make.bat")
else()
find_program(MAKE make)
if(NOT MAKE)
message(FATAL_ERROR "The 'make' command was not found")
endif()
set(PDF_BUILD_COMMAND ${MAKE})
endif()
add_custom_target(
pdf
COMMAND ${CMAKE_COMMAND} -E env LATEXMKOPTS="${LATEXMKOPTS}"
${PDF_BUILD_COMMAND}
WORKING_DIRECTORY ${DOCS_LATEX_DIR}
COMMENT "Building PDF file..."
USES_TERMINAL
)
add_dependencies(pdf latex)
endif()
#-------------------------------------------------------------------------------
# others
add_custom_target(
pristine
COMMAND ${CMAKE_COMMAND} -P ${ZEPHYR_BASE}/cmake/pristine.cmake
)