OSCL-LXR

0001 #!/bin/sh
0002 # SPDX-License-Identifier: GPL-2.0
0003 # Linux kernel symbol namespace import generator
0004 #
0005 # This script requires a minimum spatch version.
0006 SPATCH_REQ_VERSION="1.0.4"
0007
0008 DIR="$(dirname $(readlink -f $0))/.."
0009 SPATCH="`which ${SPATCH:=spatch}`"
0010 if [ ! -x "$SPATCH" ]; then
0011         echo 'spatch is part of the Coccinelle project and is available at http://coccinelle.lip6.fr/'
0012         exit 1
0013 fi
0014
0015 SPATCH_VERSION=$($SPATCH --version | head -1 | awk '{print $3}')
0016
0017 if ! { echo "$SPATCH_REQ_VERSION"; echo "$SPATCH_VERSION"; } | sort -CV ; then
0018         echo "spatch needs to be version $SPATCH_REQ_VERSION or higher"
0019         exit 1
0020 fi
0021
0022 if [ "$KBUILD_EXTMOD" ]; then
0023         src_prefix=
0024 else
0025         src_prefix=$srctree/
0026 fi
0027
0028 generate_deps_for_ns() {
0029         $SPATCH --very-quiet --in-place --sp-file \
0030                 $srctree/scripts/coccinelle/misc/add_namespace.cocci -D nsdeps -D ns=$1 $2
0031 }
0032
0033 generate_deps() {
0034         local mod=${1%.ko:}
0035         shift
0036         local namespaces="$*"
0037         local mod_source_files=$(sed "s|^\(.*\)\.o$|${src_prefix}\1.c|" $mod.mod)
0038
0039         for ns in $namespaces; do
0040                 echo "Adding namespace $ns to module $mod.ko."
0041                 generate_deps_for_ns $ns "$mod_source_files"
0042                 # sort the imports
0043                 for source_file in $mod_source_files; do
0044                         sed '/MODULE_IMPORT_NS/Q' $source_file > ${source_file}.tmp
0045                         offset=$(wc -l ${source_file}.tmp | awk '{print $1;}')
0046                         cat $source_file | grep MODULE_IMPORT_NS | LC_ALL=C sort -u >> ${source_file}.tmp
0047                         tail -n +$((offset +1)) ${source_file} | grep -v MODULE_IMPORT_NS >> ${source_file}.tmp
0048                         if ! diff -q ${source_file} ${source_file}.tmp; then
0049                                 mv ${source_file}.tmp ${source_file}
0050                         else
0051                                 rm ${source_file}.tmp
0052                         fi
0053                 done
0054         done
0055 }
0056
0057 while read line
0058 do
0059         generate_deps $line
0060 done < $MODULES_NSDEPS