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llext-edk: add Kconfig option to enable EDK generation

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Add a new Kconfig option to make the generation of an Extension
Development Kit (EDK) for the LLEXT subsystem optional. This
allows to cleanly separate EDK-related configuration and build
steps from the rest of the Zeprhyr build system.

Signed-off-by: Luca Burelli <l.burelli@arduino.cc>
This commit is contained in:
Luca Burelli 2025-01-30 11:17:14 +01:00 • committed by Benjamin Cabé
commit d043a21426
2 changed files with 40 additions and 29 deletions
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2
CMakeLists.txt
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@ -2220,6 +2220,7 @@ if((CMAKE_BUILD_TYPE IN_LIST build_types) AND (NOT NO_BUILD_TYPE_WARNING))
endif()
# Extension Development Kit (EDK) generation.
if(CONFIG_LLEXT_EDK)
set(llext_edk_file ${PROJECT_BINARY_DIR}/${CONFIG_LLEXT_EDK_NAME}.tar.xz)
# TODO maybe generate flags for C CXX ASM
@ -2260,6 +2261,7 @@ add_custom_command(
COMMAND_EXPAND_LISTS
)
add_custom_target(llext-edk DEPENDS ${llext_edk_file})
endif()
# @Intent: Set compiler specific flags for standard C/C++ includes
# Done at the very end, so any other system includes which may

13
subsys/llext/Kconfig
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@ -126,7 +126,16 @@ source "subsys/logging/Kconfig.template.log_config"
endif
menu "Linkable loadable Extension Development Kit (EDK)"
menuconfig LLEXT_EDK
bool "Linkable loadable Extension Development Kit (EDK)"
default y if LLEXT
help
Enable the generation of an Extension Development Kit (EDK) for the
Linkable Loadable Extension subsystem. The EDK is an archive that
contains the necessary files and build settings to build extensions
for Zephyr without the need to have the full Zephyr source tree.
if LLEXT_EDK
config LLEXT_EDK_NAME
string "Name for llext EDK (Extension Development Kit)"
@ -145,4 +154,4 @@ config LLEXT_EDK_USERSPACE_ONLY
to be used by userspace only extensions, this option will make EDK stubs
not contain the routing code, and only generate the userspace one.
endmenu
endif