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mcuboot: doc: Define MCUBOOT_EXTRA_IMGTOOL_ARGS more clearly

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imgtool could be used for many things, but
CONFIG_MCUBOOT_EXTRA_IMGTOOL_ARGS, despite it's generic name, is only
applied when signing. Make it even more clear in the prompt and help
text that it's limited to signing.

Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
This commit is contained in:
Sebastian Bøe 2022-12-13 13:46:05 +01:00 committed by Carles Cufí
parent f2e0ac5c58
commit 02b83892d2
1 changed files with 4 additions and 4 deletions
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8
Kconfig.zephyr
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@ -822,12 +822,12 @@ config MCUBOOT_ENCRYPTION_KEY_FILE
If left empty, you must encrypt the Zephyr binaries manually.
config MCUBOOT_EXTRA_IMGTOOL_ARGS
string "Extra arguments to pass to imgtool"
string "Extra arguments to pass to imgtool when signing"
default ""
help
If CONFIG_MCUBOOT_SIGNATURE_KEY_FILE is a non-empty string,
you can use this option to pass extra options to imgtool.
For example, you could set this to "--version 1.2".
When signing (CONFIG_MCUBOOT_SIGNATURE_KEY_FILE is a non-empty
string) you can use this option to pass extra options to
imgtool. For example, you could set this to "--version 1.2".
config MCUBOOT_GENERATE_UNSIGNED_IMAGE
bool "Generate unsigned binary image bootable with MCUboot"