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cmake: Account for missing partition CSV file at cmake runtime

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Avoid either breaking menuconfig (if cmake fails), or producing bad build output (if cmake succeeds
but no flashing offsets, etc. were generated.)
This commit is contained in:
Angus Gratton 2018-08-27 11:55:04 +08:00 committed by Angus Gratton
parent ab95d5cdd7
commit dd77a4c65d
3 changed files with 24 additions and 1 deletions
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17
components/partition_table/CMakeLists.txt
View File

@ -42,7 +42,24 @@ if(CONFIG_SECURE_BOOT_BUILD_SIGNED_BINARIES)
endif()
if(EXISTS ${partition_csv})
add_custom_target(partition_table ALL DEPENDS "${final_partition_bin}")
else()
# This is a bit of a hack: If the partition input CSV is not found, create a phony partition_table target that
# fails the build. Have it also touch CMakeCache.txt to cause a cmake run next time
# (to pick up a new CSV if one exists, etc.)
#
# This is because partition CSV is required at CMake runtime (to generate metadata files with flashing data, etc) but we can't
# fail the build if it is not found, because the "menuconfig" target may be required to fix the problem. CMAKE_CONFIGURE_DEPENDS
# only works for files which exist at CMake runtime.
add_custom_target(partition_table ALL
COMMAND ${CMAKE_COMMAND} -E echo "Partition table CSV ${partition_csv} does not exist. Either change partition table in menuconfig or create this input file."
COMMAND ${CMAKE_COMMAND} -E touch "${CMAKE_BINARY_DIR}/CMakeCache.txt"
COMMAND ${CMAKE_COMMAND} -P ${IDF_PATH}/tools/cmake/scripts/fail.cmake)
endif()
add_dependencies(bootloader partition_table)
add_dependencies(app partition_table)
# Use global properties ESPTOOL_WRITE_FLASH_ARGS to pass this info to build
# the list of esptool write arguments for flashing

2
components/partition_table/project_include.cmake
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@ -11,6 +11,8 @@ if(CONFIG_PARTITION_TABLE_CUSTOM)
if(NOT EXISTS "${PARTITION_CSV_PATH}")
message(WARNING "Partition table CSV file ${PARTITION_CSV_PATH} not found. "
"Change custom partition CSV path in menuconfig.")
# Note: partition_table CMakeLists.txt contains some logic to create a dummy
# partition_table target in this case, see comments in that file.
endif()
else()
# Other .csv files are always in the component directory

4
tools/cmake/scripts/fail.cmake Normal file
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@ -0,0 +1,4 @@
# 'cmake -E' doesn't have a way to fail outright, so run this script
# with 'cmake -P' to fail a build.
message(FATAL_ERROR "Failing the build (see errors on lines above)")