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SubjectRe: [PATCH] kbuild: modules_install: Warn if System.map file is not found
Hi Randy,

2018-09-01 7:33 GMT+09:00 Randy Dunlap <rdunlap@infradead.org>:
> From: Randy Dunlap <rdunlap@infradead.org>
>
> If there is no System.map file for "make modules_install",
> scripts/depmod.sh will silently exit with success, having done
> nothing. Since this is an unexpected situation, change it to
> report a Warning for the missing file. The behavior is not
> changed except for the Warning message.
>
> The (previous) silent success and new Warning can be reproduced
> by:
> $ make mrproper; make defconfig
> $ make modules; make modules_install
>
> and since System.map is produced by "make vmlinux", the steps
> above omit producing the System.map file.
>
> Reported-by: Masahiro Yamada <yamada.masahiro@socionext.com>
> Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
> Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
> ---
> scripts/depmod.sh | 1 +
> 1 file changed, 1 insertion(+)
>
> --- lnx-419-rc1.orig/scripts/depmod.sh
> +++ lnx-419-rc1/scripts/depmod.sh
> @@ -11,6 +11,7 @@ DEPMOD=$1
> KERNELRELEASE=$2
>
> if ! test -r System.map ; then
> + echo "Warning: modules_install: missing 'System.map' file"
> exit 0
> fi

Thanks for the patch.


For consistency, I'd like to suggest '>&2' for this warning too.


Also, could you add a little more info
about what happened (or what did not happen) then ?



For example,


Warning: modules_install: missing 'System.map' file. Skipping depmod.





--
Best Regards
Masahiro Yamada

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