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