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