esp-idf/tools/cmake/run_size_tool.cmake

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# A CMake script to run size tool commands supporting SIZE_OUTPUT_FORMAT and
# OUTPUT_JSON environment variables from within ninja or make or another
# cmake-based build runner.
#
# It is recommended to NOT USE this CMake script if you have the option of
# running the tool directly. This script exists only for use inside CMake builds.
cmake_minimum_required(VERSION 3.16)
# Main purpose of this script: we can't expand these environment variables in the main IDF CMake build,
# because we want to expand them at CMake target build time not at CMake configuration time
# (so they can change without needing a CMake re-run)
set(IDF_SIZE_CMD ${IDF_SIZE_TOOL})
if(NOT DEFINED ENV{SIZE_OUTPUT_FORMAT} OR "$ENV{SIZE_OUTPUT_FORMAT}" STREQUAL "default")
# Format not passed to "idf.py size" explicitly, or this target was invoked
# from make/ninja directly (without idf.py)
if(DEFINED OUTPUT_JSON AND OUTPUT_JSON)
# honor the legacy OUTPUT_JSON variable, if set
list(APPEND IDF_SIZE_CMD "--format=json")
endif()
elseif(DEFINED ENV{SIZE_OUTPUT_FORMAT})
# specific format was requested
list(APPEND IDF_SIZE_CMD "--format=$ENV{SIZE_OUTPUT_FORMAT}")
endif()
if(DEFINED IDF_SIZE_MODE)
list(APPEND IDF_SIZE_CMD ${IDF_SIZE_MODE})
endif()
list(APPEND IDF_SIZE_CMD ${MAP_FILE})
execute_process(COMMAND ${IDF_SIZE_CMD}
RESULT_VARIABLE result
)
if(${result})
message(FATAL_ERROR "${IDF_SIZE_TOOL} failed")
endif()