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kbuild: deb-pkg: Don't fail if modules.order is missing

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Kernels built without CONFIG_MODULES might still want to create -dbg deb
packages but install_linux_image_dbg() assumes modules.order always
exists. This obviously isn't true if no modules were built, so we should
skip reading modules.order in that case.

Fixes: 16c36f8864 ("kbuild: deb-pkg: use build ID instead of debug link for dbg package")
Signed-off-by: Matt Fleming <mfleming@cloudflare.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Matt Fleming 2024-11-07 15:05:08 +00:00 committed by Masahiro Yamada
parent dbefa1f31a
commit bcbbf493f2
1 changed files with 11 additions and 9 deletions
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20
scripts/package/builddeb
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@ -96,16 +96,18 @@ install_linux_image_dbg () {
# Parse modules.order directly because 'make modules_install' may sign,
# compress modules, and then run unneeded depmod.
while read -r mod; do
mod="${mod%.o}.ko"
dbg="${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/kernel/${mod}"
buildid=$("${READELF}" -n "${mod}" | sed -n 's@^.*Build ID: \(..\)\(.*\)@\1/\2@p')
link="${pdir}/usr/lib/debug/.build-id/${buildid}.debug"
if is_enabled CONFIG_MODULES; then
while read -r mod; do
mod="${mod%.o}.ko"
dbg="${pdir}/usr/lib/debug/lib/modules/${KERNELRELEASE}/kernel/${mod}"
buildid=$("${READELF}" -n "${mod}" | sed -n 's@^.*Build ID: \(..\)\(.*\)@\1/\2@p')
link="${pdir}/usr/lib/debug/.build-id/${buildid}.debug"
mkdir -p "${dbg%/*}" "${link%/*}"
"${OBJCOPY}" --only-keep-debug "${mod}" "${dbg}"
ln -sf --relative "${dbg}" "${link}"
done < modules.order
mkdir -p "${dbg%/*}" "${link%/*}"
"${OBJCOPY}" --only-keep-debug "${mod}" "${dbg}"
ln -sf --relative "${dbg}" "${link}"
done < modules.order
fi
# Build debug package
# Different tools want the image in different locations