#!/bin/bash
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RETVAL=0
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ARCHES="arm64 arm x86"
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if [ -z "$ANDROID_BUILD_TOP" ]; then
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echo "ANDROID_BUILD_TOP not set, exiting"
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exit 1
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fi
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AFRAGS="$ANDROID_BUILD_TOP/kernel/configs"
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KERNEL_VERSIONS=`ls -d $AFRAGS/android-* | xargs -n 1 basename`
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check_fragment()
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{
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ERRORS=0
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while read line; do
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grep -q "$line" .config
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if [ $? -ne 0 ]
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then
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echo "Error, $line not found in merged config."
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ERRORS=1
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fi
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done < <(grep -v -E "^# " $1)
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if [ $ERRORS -ne 0 ]
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then
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echo "Errors encountered while checking $1"
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RETVAL=1
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else
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echo "Fragment $1 is okay"
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fi
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echo ""
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}
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check_arches()
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{
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for arch in $ARCHES; do
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rm .config
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make ARCH=$arch allnoconfig
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FRAGMENTS="$AFRAGS/$version/android-base.config \
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$AFRAGS/$version/android-recommended.config"
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if [ -f $AFRAGS/$version/android-base-$arch.config ]; then
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FRAGMENTS="$FRAGMENTS $AFRAGS/$version/android-base-$arch.config"
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fi
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if [ -f $AFRAGS/$version/android-recommended-$arch.config ]; then
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FRAGMENTS="$FRAGMENTS $AFRAGS/$version/android-recommended-$arch.config"
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fi
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ARCH=$arch scripts/kconfig/merge_config.sh .config $FRAGMENTS &> /dev/null
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for f in $FRAGMENTS; do
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check_fragment $f
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done
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done
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}
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check_configs()
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{
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for version in $KERNEL_VERSIONS; do
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echo "Changing to $KERNEL_PATH"
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cd $KERNEL_PATH
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git checkout $version
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check_arches
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done
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}
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show_help()
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{
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cat << EOF
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Usage: ${0##*/} [-h] [-a arches] [-v versions] -k path-to-kernel
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Check that the kernel config fragments are consistent with the Kconfig files
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in the given kernel versions. This requires an android common kernel repo to
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be checked out and made available to this script via the -k option or the
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KERNEL_PATH environment variable. Note this script does not verify the
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configs in the conditional XML fragments.
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-h display this help and exit
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-a arches quote-enclosed whitespace separated list of
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architectures to check, valid architectures are
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arm64, arm, and x86
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-k kernel path to android common kernel repo
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-v versions quote-enclosed whitespace separated list of
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kernel versions to check (android-x.y)
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EOF
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}
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OPTIND=1
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while getopts "h?a:v:k:" opt; do
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case "$opt" in
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h|\?)
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show_help
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exit 0
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;;
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a)
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ARCHES="$OPTARG"
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;;
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v)
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KERNEL_VERSIONS="$OPTARG"
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;;
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k)
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KERNEL_PATH="${OPTARG/#\~/$HOME}"
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;;
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esac
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done
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check_configs
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