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411 lines
10 KiB
411 lines
10 KiB
#!/bin/bash
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#
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# This script takes the merged config files and processes them through oldconfig
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# and listnewconfig
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#
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# Globally disable suggestion of appending '|| exit' or '|| return' to cd/pushd/popd commands
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# shellcheck disable=SC2164
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test -n "$RHTEST" && exit 0
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usage()
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{
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# alphabetical order please
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echo "process_configs.sh [ options ] package_name kernel_version"
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echo " -a: report all errors, equivalent to [-c -n -w -i]"
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echo " -c: error on mismatched config options"
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echo " -i: continue on error"
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echo " -n: error on unset config options"
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echo " -t: test run, do not overwrite original config"
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echo " -w: error on misconfigured config options"
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echo " -z: commit new configs to pending directory"
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echo ""
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echo " A special CONFIG file tag, process_configs_known_broken can be added as a"
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echo " comment to any CONFIG file. This tag indicates that there is no way to "
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echo " fix a CONFIG's entry. This tag should only be used in extreme cases"
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echo " and is not to be used as a workaround to solve CONFIG problems."
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exit 1
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}
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die()
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{
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echo "$1"
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exit 1
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}
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get_cross_compile()
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{
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arch=$1
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if [[ "$CC_IS_CLANG" -eq 1 ]]; then
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echo "$arch"
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else
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echo "scripts/dummy-tools/"
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fi
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}
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# stupid function to find top of tree to do kernel make configs
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switch_to_toplevel()
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{
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path="$(pwd)"
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while test -n "$path"
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do
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test -e "$path"/MAINTAINERS && \
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test -d "$path"/drivers && \
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break
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path=$(dirname "$path")
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done
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test -n "$path" || die "Can't find toplevel"
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echo "$path"
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}
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checkoptions()
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{
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count=$3
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variant=$4
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/usr/bin/awk '
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/is not set/ {
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split ($0, a, "#");
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split(a[2], b);
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if (NR==FNR) {
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configs[b[1]]="is not set";
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} else {
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if (configs[b[1]] != "" && configs[b[1]] != "is not set")
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print "Found # "b[1] " is not set, after generation, had " b[1] " " configs[b[1]] " in Source tree";
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}
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}
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/=/ {
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split ($0, a, "=");
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if (NR==FNR) {
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configs[a[1]]=a[2];
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} else {
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if (configs[a[1]] != "" && configs[a[1]] != a[2])
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print "Found "a[1]"="a[2]" after generation, had " a[1]"="configs[a[1]]" in Source tree";
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}
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}
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' "$1" "$2" > .mismatches"${count}"
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checkoptions_error=false
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if test -s .mismatches"${count}"
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then
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while read -r LINE
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do
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if find "${REDHAT}"/configs -name "$(echo "$LINE" | awk -F "=" ' { print $1 } ' | awk ' { print $2 }')" -print0 | xargs -0 grep ^ | grep -q "process_configs_known_broken"; then
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# This is a known broken config.
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# See script help warning.
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checkoptions_error=false
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else
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checkoptions_error=true
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break
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fi
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done < .mismatches"${count}"
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! $checkoptions_error && return
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sed -i "1s/^/Error: Mismatches found in configuration files for ${arch} ${variant}\n/" .mismatches"${count}"
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else
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rm -f .mismatches"${count}"
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fi
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}
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parsenewconfigs()
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{
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tmpdir=$(mktemp -d)
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# This awk script reads the output of make listnewconfig
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# and puts it into CONFIG_FOO files. Using the output of
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# listnewconfig is much easier to ensure we get the default
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# output.
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/usr/bin/awk -v BASE="$tmpdir" '
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/is not set/ {
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split ($0, a, "#");
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split(a[2], b);
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OUT_FILE=BASE"/"b[1];
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print $0 >> OUT_FILE;
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}
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/=/ {
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split ($0, a, "=");
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OUT_FILE=BASE"/"a[1];
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if (a[2] == "n")
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print "# " a[1] " is not set" >> OUT_FILE;
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else
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print $0 >> OUT_FILE;
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}
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' .newoptions
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# This awk script parses the output of helpnewconfig.
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# Each option is separated between ----- markers
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# The goal is to put all the help text as a comment in
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# each CONFIG_FOO file. Because of how awk works
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# there's a lot of moving files around and catting to
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# get what we need.
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/usr/bin/awk -v BASE="$tmpdir" '
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BEGIN { inpatch=0;
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outfile="none";
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symbol="none"; }
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/^Symbol: .*$/ {
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split($0, a, " ");
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symbol="CONFIG_"a[2];
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outfile=BASE "/fake_"symbol
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}
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/-----/ {
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if (inpatch == 0) {
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inpatch = 1;
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}
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else {
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if (symbol != "none") {
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system("cat " outfile " " BASE "/" symbol " > " BASE "/tmpf");
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system("mv " BASE "/tmpf " BASE "/" symbol);
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symbol="none"
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}
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outfile="none"
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inpatch = 0;
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}
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}
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!/-----/ {
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if (inpatch == 1 && outfile != "none") {
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print "# "$0 >> outfile;
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}
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}
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' .helpnewconfig
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pushd "$tmpdir" &> /dev/null
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rm fake_*
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popd &> /dev/null
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for f in "$tmpdir"/*; do
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[[ -e "$f" ]] || break
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cp "$f" "$SCRIPT_DIR/pending$FLAVOR/generic/"
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done
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rm -rf "$tmpdir"
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}
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function commit_new_configs()
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{
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# assume we are in $source_tree/configs, need to get to top level
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pushd "$(switch_to_toplevel)" &>/dev/null
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for cfg in "$SCRIPT_DIR/${PACKAGE_NAME}${KVERREL}"*.config
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do
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arch=$(head -1 "$cfg" | cut -b 3-)
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cfgtmp="${cfg}.tmp"
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cfgorig="${cfg}.orig"
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cat "$cfg" > "$cfgorig"
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if [ "$arch" = "EMPTY" ]
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then
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# This arch is intentionally left blank
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continue
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fi
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echo -n "Checking for new configs in $cfg ... "
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# shellcheck disable=SC2086
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make ${MAKEOPTS} ARCH="$arch" CROSS_COMPILE="$(get_cross_compile "$arch")" KCONFIG_CONFIG="$cfgorig" listnewconfig >& .listnewconfig
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grep -E 'CONFIG_' .listnewconfig > .newoptions
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if test -s .newoptions
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then
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# shellcheck disable=SC2086
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make ${MAKEOPTS} ARCH="$arch" CROSS_COMPILE="$(get_cross_compile "$arch")" KCONFIG_CONFIG="$cfgorig" helpnewconfig >& .helpnewconfig
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parsenewconfigs
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fi
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rm .newoptions
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echo "done"
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done
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git add "$SCRIPT_DIR/pending$FLAVOR"
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git commit -m "[redhat] AUTOMATIC: New configs"
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}
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function process_config()
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{
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local cfg
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local arch
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local cfgtmp
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local cfgorig
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local count
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local variant
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cfg=$1
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count=$2
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arch=$(head -1 "$cfg" | cut -b 3-)
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if [ "$arch" = "EMPTY" ]
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then
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# This arch is intentionally left blank
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return
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fi
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variant=$(basename "$cfg" | cut -d"-" -f3- | cut -d"." -f1)
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cfgtmp="${cfg}.tmp"
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cfgorig="${cfg}.orig"
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cat "$cfg" > "$cfgorig"
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echo "Processing $cfg ... "
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# shellcheck disable=SC2086
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make ${MAKEOPTS} ARCH="$arch" CROSS_COMPILE="$(get_cross_compile "$arch")" KCONFIG_CONFIG="$cfgorig" listnewconfig >& .listnewconfig"${count}"
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grep -E 'CONFIG_' .listnewconfig"${count}" > .newoptions"${count}"
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if test -n "$NEWOPTIONS" && test -s .newoptions"${count}"
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then
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echo "Found unset config items in ${arch} ${variant}, please set them to an appropriate value" >> .errors"${count}"
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cat .newoptions"${count}" >> .errors"${count}"
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rm .newoptions"${count}"
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RETURNCODE=1
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fi
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rm -f .newoptions"${count}"
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grep -E 'config.*warning' .listnewconfig"${count}" > .warnings"${count}"
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if test -n "$CHECKWARNINGS" && test -s .warnings"${count}"
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then
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echo "Found misconfigured config items in ${arch} ${variant}, please set them to an appropriate value" >> .errors"${count}"
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cat .warnings"${count}" >> .errors"${count}"
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fi
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rm .warnings"${count}"
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rm .listnewconfig"${count}"
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# shellcheck disable=SC2086
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make ${MAKEOPTS} ARCH="$arch" CROSS_COMPILE="$(get_cross_compile "$arch")" KCONFIG_CONFIG="$cfgorig" olddefconfig > /dev/null || exit 1
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echo "# $arch" > "$cfgtmp"
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cat "$cfgorig" >> "$cfgtmp"
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if test -n "$CHECKOPTIONS"
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then
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checkoptions "$cfg" "$cfgtmp" "$count" "$variant"
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fi
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# if test run, don't overwrite original
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if test -n "$TESTRUN"
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then
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rm -f "$cfgtmp"
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else
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mv "$cfgtmp" "$cfg"
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fi
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rm -f "$cfgorig"
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echo "Processing $cfg complete"
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}
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function process_configs()
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{
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# assume we are in $source_tree/configs, need to get to top level
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pushd "$(switch_to_toplevel)" &>/dev/null
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# The next line is throwaway code for transition to parallel
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# processing. Leaving this line in place is harmless, but it can be
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# removed the next time anyone updates this function.
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[ -f .mismatches ] && rm -f .mismatches
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count=0
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for cfg in "$SCRIPT_DIR/${PACKAGE_NAME}${KVERREL}"*.config
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do
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if [ "$count" -eq 0 ]; then
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# do the first one by itself so that tools are built
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process_config "$cfg" "$count"
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fi
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process_config "$cfg" "$count" &
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waitpids[${count}]=$!
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((count++))
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while [ "$(jobs | grep -c Running)" -ge "$RHJOBS" ]; do :; done
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done
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for pid in ${waitpids[*]}; do
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wait ${pid}
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done
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rm "$SCRIPT_DIR"/*.config*.old
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if ls .errors* 1> /dev/null 2>&1; then
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RETURNCODE=1
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cat .errors*
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rm .errors* -f
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fi
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if ls .mismatches* 1> /dev/null 2>&1; then
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RETURNCODE=1
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cat .mismatches*
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rm .mismatches* -f
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fi
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popd > /dev/null
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[ $RETURNCODE -eq 0 ] && echo "Processed config files are in $SCRIPT_DIR"
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}
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CHECKOPTIONS=""
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NEWOPTIONS=""
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TESTRUN=""
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CHECKWARNINGS=""
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MAKEOPTS=""
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CC_IS_CLANG=0
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RETURNCODE=0
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while [[ $# -gt 0 ]]
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do
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key="$1"
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case $key in
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-a)
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CHECKOPTIONS="x"
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NEWOPTIONS="x"
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CHECKWARNINGS="x"
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;;
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-c)
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CHECKOPTIONS="x"
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;;
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-h)
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usage
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;;
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-n)
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NEWOPTIONS="x"
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;;
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-t)
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TESTRUN="x"
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;;
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-w)
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CHECKWARNINGS="x"
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;;
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-z)
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COMMITNEWCONFIGS="x"
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;;
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-m)
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shift
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if [ "$1" = "CC=clang" ] || [ "$1" = "LLVM=1" ]; then
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CC_IS_CLANG=1
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fi
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MAKEOPTS="$MAKEOPTS $1"
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;;
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*)
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break;;
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esac
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shift
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done
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KVERREL="$(test -n "$1" && echo "-$1" || echo "")"
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FLAVOR="$(test -n "$2" && echo "-$2" || echo "-ark")"
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# shellcheck disable=SC2015
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SCRIPT=$(readlink -f "$0")
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SCRIPT_DIR=$(dirname "$SCRIPT")
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# Config options for RHEL should target the pending-ark directory, not pending-common.
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if [ "$FLAVOR" = "-rhel" ]
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then
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FLAVOR="-ark"
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fi
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# to handle this script being a symlink
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cd "$SCRIPT_DIR"
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if test -n "$COMMITNEWCONFIGS"; then
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commit_new_configs
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else
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process_configs
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fi
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exit $RETURNCODE
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