1#!/bin/sh 2# SPDX-License-Identifier: GPL-2.0 3# Linux kernel symbol namespace import generator 4# 5# This script requires a minimum spatch version. 6SPATCH_REQ_VERSION="1.0.4" 7 8DIR="$(dirname $(readlink -f $0))/.." 9SPATCH="`which ${SPATCH:=spatch}`" 10if [ ! -x "$SPATCH" ]; then 11 echo 'spatch is part of the Coccinelle project and is available at http://coccinelle.lip6.fr/' 12 exit 1 13fi 14 15SPATCH_REQ_VERSION_NUM=$(echo $SPATCH_REQ_VERSION | ${DIR}/scripts/ld-version.sh) 16SPATCH_VERSION=$($SPATCH --version | head -1 | awk '{print $3}') 17SPATCH_VERSION_NUM=$(echo $SPATCH_VERSION | ${DIR}/scripts/ld-version.sh) 18 19if [ "$SPATCH_VERSION_NUM" -lt "$SPATCH_REQ_VERSION_NUM" ] ; then 20 echo "spatch needs to be version $SPATCH_REQ_VERSION or higher" 21 exit 1 22fi 23 24if [ "$KBUILD_EXTMOD" ]; then 25 src_prefix= 26else 27 src_prefix=$srctree/ 28fi 29 30generate_deps_for_ns() { 31 $SPATCH --very-quiet --in-place --sp-file \ 32 $srctree/scripts/coccinelle/misc/add_namespace.cocci -D nsdeps -D ns=$1 $2 33} 34 35generate_deps() { 36 local mod=${1%.ko:} 37 shift 38 local namespaces="$*" 39 local mod_source_files="`cat $mod.mod | sed -n 1p \ 40 | sed -e 's/\.o/\.c/g' \ 41 | sed "s|[^ ]* *|${src_prefix}&|g"`" 42 for ns in $namespaces; do 43 echo "Adding namespace $ns to module $mod.ko." 44 generate_deps_for_ns $ns "$mod_source_files" 45 # sort the imports 46 for source_file in $mod_source_files; do 47 sed '/MODULE_IMPORT_NS/Q' $source_file > ${source_file}.tmp 48 offset=$(wc -l ${source_file}.tmp | awk '{print $1;}') 49 cat $source_file | grep MODULE_IMPORT_NS | LANG=C sort -u >> ${source_file}.tmp 50 tail -n +$((offset +1)) ${source_file} | grep -v MODULE_IMPORT_NS >> ${source_file}.tmp 51 if ! diff -q ${source_file} ${source_file}.tmp; then 52 mv ${source_file}.tmp ${source_file} 53 else 54 rm ${source_file}.tmp 55 fi 56 done 57 done 58} 59 60while read line 61do 62 generate_deps $line 63done < $MODULES_NSDEPS 64