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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="`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 | LANG=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 | ||
58 | while read line | |
59 | do | |
60 | generate_deps $line | |
61 | done < $MODULES_NSDEPS |