#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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# Linux kernel symbol namespace import generator
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#
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# This script requires a minimum spatch version.
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SPATCH_REQ_VERSION="1.0.4"
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DIR="$(dirname $(readlink -f $0))/.."
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SPATCH="`which ${SPATCH:=spatch}`"
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if [ ! -x "$SPATCH" ]; then
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echo 'spatch is part of the Coccinelle project and is available at http://coccinelle.lip6.fr/'
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exit 1
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fi
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SPATCH_REQ_VERSION_NUM=$(echo $SPATCH_REQ_VERSION | ${DIR}/scripts/ld-version.sh)
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SPATCH_VERSION=$($SPATCH --version | head -1 | awk '{print $3}')
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SPATCH_VERSION_NUM=$(echo $SPATCH_VERSION | ${DIR}/scripts/ld-version.sh)
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if [ "$SPATCH_VERSION_NUM" -lt "$SPATCH_REQ_VERSION_NUM" ] ; then
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echo "spatch needs to be version $SPATCH_REQ_VERSION or higher"
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exit 1
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fi
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if [ "$KBUILD_EXTMOD" ]; then
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src_prefix=
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else
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src_prefix=$srctree/
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fi
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generate_deps_for_ns() {
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$SPATCH --very-quiet --in-place --sp-file \
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$srctree/scripts/coccinelle/misc/add_namespace.cocci -D nsdeps -D ns=$1 $2
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}
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generate_deps() {
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local mod=${1%.ko:}
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shift
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local namespaces="$*"
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local mod_source_files="`cat $mod.mod | sed -n 1p \
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| sed -e 's/\.o/\.c/g' \
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| sed "s|[^ ]* *|${src_prefix}&|g"`"
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for ns in $namespaces; do
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echo "Adding namespace $ns to module $mod.ko."
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generate_deps_for_ns $ns "$mod_source_files"
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# sort the imports
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for source_file in $mod_source_files; do
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sed '/MODULE_IMPORT_NS/Q' $source_file > ${source_file}.tmp
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offset=$(wc -l ${source_file}.tmp | awk '{print $1;}')
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cat $source_file | grep MODULE_IMPORT_NS | LANG=C sort -u >> ${source_file}.tmp
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tail -n +$((offset +1)) ${source_file} | grep -v MODULE_IMPORT_NS >> ${source_file}.tmp
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if ! diff -q ${source_file} ${source_file}.tmp; then
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mv ${source_file}.tmp ${source_file}
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else
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rm ${source_file}.tmp
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fi
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done
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done
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}
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while read line
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do
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generate_deps $line
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done < $MODULES_NSDEPS
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