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kernel-yocto: split meta data gathering into patch and config phases

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do_kernel_metadata gathers and sanitizes the meta-data that is used
in later steps of the kernel-yocto build process. The processing
takes the form of configuration and patch gathering.

The current single pass of both config and patch gathering means
that patches can't modify in-tree configuration elements (although
this makes tracing configuration changes harder, it is a valid
workflow).

We can divide the routine into a patch and configuration phase, and
call the config variant after patching is done. This keeps the
common parts of the gahering intact, but allows us flexibilty in
when the stages happen.

(From OE-Core rev: 004da4c6c6029bb2bdcea6da8afa70368ddd1bca)

Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Bruce Ashfield
2020-08-12 13:03:28 -04:00
committed by Richard Purdie
parent c74b763e04
commit 095175595d
1 changed files with 43 additions and 29 deletions
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72
meta/classes/kernel-yocto.bbclass
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@@ -87,6 +87,13 @@ def get_machine_branch(d, default):
do_kernel_metadata() {
set +e
if [ -n "$1" ]; then
mode="$1"
else
mode="patch"
fi
cd ${S}
export KMETA=${KMETA}
@@ -120,14 +127,13 @@ do_kernel_metadata() {
if [ -n "${KBUILD_DEFCONFIG}" ]; then
if [ -f "${S}/arch/${ARCH}/configs/${KBUILD_DEFCONFIG}" ]; then
if [ -f "${WORKDIR}/defconfig" ]; then
# If the two defconfig's are different, warn that we didn't overwrite the
# one already placed in WORKDIR by the fetcher.
# If the two defconfig's are different, warn that we overwrote the
# one already placed in WORKDIR
cmp "${WORKDIR}/defconfig" "${S}/arch/${ARCH}/configs/${KBUILD_DEFCONFIG}"
if [ $? -ne 0 ]; then
bbwarn "defconfig detected in WORKDIR. ${KBUILD_DEFCONFIG} skipped"
else
cp -f ${S}/arch/${ARCH}/configs/${KBUILD_DEFCONFIG} ${WORKDIR}/defconfig
bbdebug 1 "detected SRC_URI or unpatched defconfig in WORKDIR. ${KBUILD_DEFCONFIG} copied over it"
fi
cp -f ${S}/arch/${ARCH}/configs/${KBUILD_DEFCONFIG} ${WORKDIR}/defconfig
else
cp -f ${S}/arch/${ARCH}/configs/${KBUILD_DEFCONFIG} ${WORKDIR}/defconfig
fi
@@ -137,17 +143,19 @@ do_kernel_metadata() {
fi
fi
# was anyone trying to patch the kernel meta data ?, we need to do
# this here, since the scc commands migrate the .cfg fragments to the
# kernel source tree, where they'll be used later.
check_git_config
patches="${@" ".join(find_patches(d,'kernel-meta'))}"
for p in $patches; do
(
cd ${WORKDIR}/kernel-meta
git am -s $p
)
done
if [ "$mode" = "patch" ]; then
# was anyone trying to patch the kernel meta data ?, we need to do
# this here, since the scc commands migrate the .cfg fragments to the
# kernel source tree, where they'll be used later.
check_git_config
patches="${@" ".join(find_patches(d,'kernel-meta'))}"
for p in $patches; do
(
cd ${WORKDIR}/kernel-meta
git am -s $p
)
done
fi
sccs_from_src_uri="${@" ".join(find_sccs(d))}"
patches="${@" ".join(find_patches(d,''))}"
@@ -237,13 +245,15 @@ do_kernel_metadata() {
done
fi
# run1: pull all the configuration fragments, no matter where they come from
elements="`echo -n ${bsp_definition} $sccs_defconfig ${sccs} ${patches} $KERNEL_FEATURES_FINAL`"
if [ -n "${elements}" ]; then
echo "${bsp_definition}" > ${S}/${meta_dir}/bsp_definition
scc --force -o ${S}/${meta_dir}:cfg,merge,meta ${includes} $sccs_defconfig $bsp_definition $sccs $patches $KERNEL_FEATURES_FINAL
if [ $? -ne 0 ]; then
bbfatal_log "Could not generate configuration queue for ${KMACHINE}."
if [ "$mode" = "config" ]; then
# run1: pull all the configuration fragments, no matter where they come from
elements="`echo -n ${bsp_definition} $sccs_defconfig ${sccs} ${patches} $KERNEL_FEATURES_FINAL`"
if [ -n "${elements}" ]; then
echo "${bsp_definition}" > ${S}/${meta_dir}/bsp_definition
scc --force -o ${S}/${meta_dir}:cfg,merge,meta ${includes} $sccs_defconfig $bsp_definition $sccs $patches $KERNEL_FEATURES_FINAL
if [ $? -ne 0 ]; then
bbfatal_log "Could not generate configuration queue for ${KMACHINE}."
fi
fi
fi
@@ -254,12 +264,14 @@ do_kernel_metadata() {
sccs="${bsp_definition} ${sccs}"
fi
# run2: only generate patches for elements that have been passed on the SRC_URI
elements="`echo -n ${sccs} ${patches} $KERNEL_FEATURES_FINAL`"
if [ -n "${elements}" ]; then
scc --force -o ${S}/${meta_dir}:patch --cmds patch ${includes} ${sccs} ${patches} $KERNEL_FEATURES_FINAL
if [ $? -ne 0 ]; then
bbfatal_log "Could not generate configuration queue for ${KMACHINE}."
if [ "$mode" = "patch" ]; then
# run2: only generate patches for elements that have been passed on the SRC_URI
elements="`echo -n ${sccs} ${patches} $KERNEL_FEATURES_FINAL`"
if [ -n "${elements}" ]; then
scc --force -o ${S}/${meta_dir}:patch --cmds patch ${includes} ${sccs} ${patches} $KERNEL_FEATURES_FINAL
if [ $? -ne 0 ]; then
bbfatal_log "Could not generate configuration queue for ${KMACHINE}."
fi
fi
fi
}
@@ -363,6 +375,8 @@ do_kernel_configme[depends] += "bc-native:do_populate_sysroot bison-native:do_po
do_kernel_configme[depends] += "kern-tools-native:do_populate_sysroot"
do_kernel_configme[dirs] += "${S} ${B}"
do_kernel_configme() {
do_kernel_metadata config
# translate the kconfig_mode into something that merge_config.sh
# understands
case ${KCONFIG_MODE} in