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_VERSION=$($SPATCH --version | head -1 | awk '{print $3}') 16 17if ! { echo "$SPATCH_REQ_VERSION"; echo "$SPATCH_VERSION"; } | sort -CV ; then 18 echo "spatch needs to be version $SPATCH_REQ_VERSION or higher" 19 exit 1 20fi 21 22if [ "$KBUILD_EXTMOD" ]; then 23 src_prefix= 24else 25 src_prefix=$srctree/ 26fi 27 28generate_deps_for_ns() { 29 $SPATCH --very-quiet --in-place --sp-file \ 30 $srctree/scripts/coccinelle/misc/add_namespace.cocci -D nsdeps -D ns=$1 $2 31} 32 33generate_deps() { 34 local mod=${1%.ko:} 35 shift 36 local namespaces="$*" 37 local mod_source_files="`cat $mod.mod | sed -n 1p \ 38 | sed -e 's/\.o/\.c/g' \ 39 | sed "s|[^ ]* *|${src_prefix}&|g"`" 40 for ns in $namespaces; do 41 echo "Adding namespace $ns to module $mod.ko." 42 generate_deps_for_ns $ns "$mod_source_files" 43 # sort the imports 44 for source_file in $mod_source_files; do 45 sed '/MODULE_IMPORT_NS/Q' $source_file > ${source_file}.tmp 46 offset=$(wc -l ${source_file}.tmp | awk '{print $1;}') 47 cat $source_file | grep MODULE_IMPORT_NS | LC_ALL=C sort -u >> ${source_file}.tmp 48 tail -n +$((offset +1)) ${source_file} | grep -v MODULE_IMPORT_NS >> ${source_file}.tmp 49 if ! diff -q ${source_file} ${source_file}.tmp; then 50 mv ${source_file}.tmp ${source_file} 51 else 52 rm ${source_file}.tmp 53 fi 54 done 55 done 56} 57 58while read line 59do 60 generate_deps $line 61done < $MODULES_NSDEPS 62