alex/esp-idf
alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2024-10-05 20:47:46 -04:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

cmake: add command to get config value

Browse Source
This commit is contained in:
Renz Christian Bagaporo 2019-05-09 15:19:59 +08:00
parent de9bb5a160
commit 7493bd2e28
3 changed files with 50 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
docs/en/api-guides/build-system-cmake.rst
View File

@ -980,6 +980,14 @@ The call requires the target chip to be specified with *target* argument. Option
Specify the executable *executable* for ESP-IDF build. This attaches additional targets such as dependencies related to
flashing, generating additional binary files, etc. Should be called after ``idf_build_process``.
.. code-block:: none
idf_build_get_config(var config [GENERATOR_EXPRESSION])
Get the value of the specified config. Much like build properties, specifying
*GENERATOR_EXPRESSION* will retrieve the generator expression string for that config, instead of the actual value, which
can be used with CMake commands that support generator expressions. Actual config values are only known after call to `idf_build_process`, however.
.. _cmake-build-properties:
idf-build-properties

31
tools/cmake/build.cmake
View File

@ -297,6 +297,23 @@ macro(__build_set_default var default)
unset(_var)
endmacro()
#
# Import configs as build instance properties so that they are accessible
# using idf_build_get_config(). Config has to have been generated before calling
# this command.
#
function(__build_import_configs)
# Include the sdkconfig cmake file, since the following operations require
# knowledge of config values.
idf_build_get_property(sdkconfig_cmake SDKCONFIG_CMAKE)
include(${sdkconfig_cmake})
idf_build_set_property(__CONFIG_VARIABLES "${CONFIGS_LIST}")
foreach(config ${CONFIGS_LIST})
set_property(TARGET __idf_build_target PROPERTY ${config} "${${config}}")
endforeach()
endfunction()
# idf_build_process
#
# @brief Main processing step for ESP-IDF build: config generation, adding components to the build,
@ -349,6 +366,7 @@ macro(idf_build_process target)
idf_build_get_property(sdkconfig SDKCONFIG)
idf_build_get_property(sdkconfig_defaults SDKCONFIG_DEFAULTS)
__kconfig_generate_config("${sdkconfig}" "${sdkconfig_defaults}")
__build_import_configs()
# Write the partial build properties to a temporary file.
# The path to this generated file is set to a short-lived build
@ -468,4 +486,17 @@ function(idf_build_executable elf)
# Add dependency of the build target to the executable
add_dependencies(${elf} __idf_build_target)
endfunction()
# idf_build_get_config
#
# @brief Get value of specified config variable
function(idf_build_get_config var config)
cmake_parse_arguments(_ "GENERATOR_EXPRESSION" "" "" ${ARGN})
if(__GENERATOR_EXPRESSION)
set(val "$<TARGET_PROPERTY:__idf_build_target,${config}>")
else()
get_property(val TARGET __idf_build_target PROPERTY ${config})
endif()
set(${var} ${val} PARENT_SCOPE)
endfunction()

11
tools/cmake/project.cmake
View File

@ -397,4 +397,15 @@ macro(project project_name)
idf_build_executable(${project_elf})
__project_info("${test_components}")
# Make build variables and config variables available after project call (of course the value
# of these variables can be accessed via idf_build_get_property or idf_build_get_config)
idf_build_get_property(sdkconfig_cmake SDKCONFIG_CMAKE)
include(${sdkconfig_cmake})
idf_build_get_property(build_properties __BUILD_PROPERTIES)
foreach(build_property ${build_properties})
idf_build_get_property(val ${build_property})
set(${build_property} "${val}")
endforeach()
endmacro()