2bf928dd97
With the configs in the new place, update the scripts to find them and utilize the base-generic and generic heirarchy to apply configs and overrides. Implement new process_configs.sh script that post-process the config changes in a simple script and remove those commands from the spec file. Add option flags to preserve functionality. config_generation is a simple rename of baseconfig -> generic and debugconfig -> debug and arm64 -> aarach64. build_configs.sh is modified to find configs in generic and base-generic and then apply base-generic first and if any generic files, apply those next. The generic directory is used as an overrides and is expected to be empty for Fedora initially. kernel.spec is modified to use process_configs.sh instead of all the commands in the spec file. Enabled spec options are translated to script options. The config manipulation is moved to be grouped with all config manipulation commands. This makes 'cd configs/' simpler. Now all config scripts and executiion are done in configs/ directory. v1 -> v2: * the scripts were not working with SUBARCH correctly * checkoptions was using wrong comparison file * passing wrong kernel version to process_configs in spec file v2 -> v3: (incorporate Laura A's feedback) * update README.txt * fix build_configs.sh warnings * Output info message on listnewconfig failure
136 lines
2.9 KiB
Bash
Executable File
136 lines
2.9 KiB
Bash
Executable File
#!/bin/bash
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#
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# This script merges together the hierarchy of CONFIG_* files under generic
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# and debug to form the necessary $PACKAGE_NAME<version>-<arch>-<variant>.config
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# files for building RHEL kernels, based on the contents of a control file
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PACKAGE_NAME="${1:-kernel}" # defines the package name used
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KVERREL="${2:-}"
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SUBARCH="${3:-}" # defines a specific arch for use with rh-configs-arch-prep target
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SCRIPT="$(readlink -f $0)"
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OUTPUT_DIR="$PWD"
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SCRIPT_DIR="$(dirname $SCRIPT)"
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# to handle this script being a symlink
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cd $SCRIPT_DIR
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set errexit
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set nounset
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control_file="config_generation"
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cleanup()
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{
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rm -f config-*
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}
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die()
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{
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echo "$1"
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cleanup
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exit 1
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}
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function combine_config_layer()
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{
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dir=$1
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file="config-$(echo $dir | sed -e 's|/|-|g')"
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if [ $(ls $dir/ | grep -c "^CONFIG_") -eq 0 ]; then
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touch $file
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return
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fi
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cat $dir/CONFIG_* > $file
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}
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function merge_configs()
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{
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archvar=$1
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arch=$(echo "$archvar" | cut -f1 -d"-")
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configs=$2
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name=$OUTPUT_DIR/$PACKAGE_NAME-$archvar.config
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echo -n "Building $name ... "
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touch config-merging config-merged
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# apply base first
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for config in $(echo $configs | sed -e 's/:/ /g')
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do
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perl merge.pl config-base-$config config-merging > config-merged
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if [ ! $? -eq 0 ]; then
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die "Failed to merge base"
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fi
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mv config-merged config-merging
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done
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for config in $(echo $configs | sed -e 's/:/ /g')
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do
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# not all override files exist
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test -e config-$config || continue
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perl merge.pl config-$config config-merging > config-merged
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if [ ! $? -eq 0 ]; then
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die "Failed to merge configs"
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fi
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mv config-merged config-merging
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done
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if [ "x$arch" == "xaarch64" ]; then
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echo "# arm64" > $name
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elif [ "x$arch" == "xppc64" ]; then
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echo "# powerpc" > $name
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elif [ "x$arch" == "xppc64le" ]; then
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echo "# powerpc" > $name
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elif [ "x$arch" == "xs390x" ]; then
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echo "# s390" > $name
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elif [ "x$arch" == "xarmv7hl" ]; then
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echo "# arm" > $name
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elif [ "x$arch" == "xi686" ]; then
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echo "# i386" > $name
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else
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echo "# $arch" > $name
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fi
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sort config-merging >> $name
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rm -f config-merged config-merging
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echo "done"
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}
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glist=$(find base-generic -type d)
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dlist=$(find base-debug -type d)
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gllist=$(test -d generic && find generic -type d)
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dllist=$(test -d debug && find debug -type d)
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for d in $glist $dlist $gllist $dllist
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do
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combine_config_layer $d
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done
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while read line
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do
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if [ $(echo "$line" | grep -c "^#") -ne 0 ]; then
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continue
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elif [ $(echo "$line" | grep -c "^$") -ne 0 ]; then
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continue
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else
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arch=$(echo "$line" | cut -f1 -d"=")
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configs=$(echo "$line" | cut -f2 -d"=")
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if [ -n "$SUBARCH" -a "$SUBARCH" != "$arch" ]; then
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continue
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fi
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merge_configs $arch $configs
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fi
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done < $control_file
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# A passed in kernel version implies copy to final location
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# otherwise defer to another script
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if test -n "$KVERREL"
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then
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for i in kernel-*.config
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do
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NEW="$(echo $i | sed "s/$PACKAGE_NAME-$SUBARCH/$PACKAGE_NAME-$KVERREL-$SUBARCH/")"
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mv $i $NEW
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done
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fi
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cleanup
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