1#!/bin/sh
2
3SPATCH="`which ${SPATCH:=spatch}`"
4
5if [ "$C" = "1" -o "$C" = "2" ]; then
6    ONLINE=1
7
8# This requires Coccinelle >= 0.2.3
9#    FLAGS="-ignore_unknown_options -very_quiet"
10#    OPTIONS=$*
11
12# Workaround for Coccinelle < 0.2.3
13    FLAGS="-I $srctree/include -very_quiet"
14    shift $(( $# - 1 ))
15    OPTIONS=$1
16else
17    ONLINE=0
18    FLAGS="-very_quiet"
19    OPTIONS="-dir $srctree"
20fi
21
22if [ ! -x "$SPATCH" ]; then
23    echo 'spatch is part of the Coccinelle project and is available at http://coccinelle.lip6.fr/'
24    exit 1
25fi
26
27if [ "$MODE" = "" ] ; then
28    if [ "$ONLINE" = "0" ] ; then
29	echo 'You have not explicitly specified the mode to use. Using default "chain" mode.'
30	echo 'All available modes will be tried (in that order): patch, report, context, org'
31	echo 'You can specify the mode with "make coccicheck MODE=<mode>"'
32    fi
33    MODE="chain"
34elif [ "$MODE" = "report" -o "$MODE" = "org" ] ; then
35    FLAGS="$FLAGS -no_show_diff"
36fi
37
38if [ "$ONLINE" = "0" ] ; then
39    echo ''
40    echo 'Please check for false positives in the output before submitting a patch.'
41    echo 'When using "patch" mode, carefully review the patch before submitting it.'
42    echo ''
43fi
44
45coccinelle () {
46    COCCI="$1"
47
48    OPT=`grep "Option" $COCCI | cut -d':' -f2`
49
50#   The option '-parse_cocci' can be used to syntactically check the SmPL files.
51#
52#    $SPATCH -D $MODE $FLAGS -parse_cocci $COCCI $OPT > /dev/null
53
54    if [ "$ONLINE" = "0" ] ; then
55
56	FILE=`echo $COCCI | sed "s|$srctree/||"`
57
58	echo "Processing `basename $COCCI`"
59	echo "with option(s) \"$OPT\""
60	echo ''
61	echo 'Message example to submit a patch:'
62
63	sed -ne 's|^///||p' $COCCI
64
65	if [ "$MODE" = "patch" ] ; then
66	    echo ' The semantic patch that makes this change is available'
67	elif [ "$MODE" = "report" ] ; then
68	    echo ' The semantic patch that makes this report is available'
69	elif [ "$MODE" = "context" ] ; then
70	    echo ' The semantic patch that spots this code is available'
71	elif [ "$MODE" = "org" ] ; then
72	    echo ' The semantic patch that makes this Org report is available'
73	else
74	    echo ' The semantic patch that makes this output is available'
75	fi
76	echo " in $FILE."
77	echo ''
78	echo ' More information about semantic patching is available at'
79	echo ' http://coccinelle.lip6.fr/'
80	echo ''
81
82	if [ "`sed -ne 's|^//#||p' $COCCI`" ] ; then
83	    echo 'Semantic patch information:'
84	    sed -ne 's|^//#||p' $COCCI
85	    echo ''
86	fi
87    fi
88
89    if [ "$MODE" = "chain" ] ; then
90	$SPATCH -D patch   $FLAGS -sp_file $COCCI $OPT $OPTIONS               || \
91	$SPATCH -D report  $FLAGS -sp_file $COCCI $OPT $OPTIONS -no_show_diff || \
92	$SPATCH -D context $FLAGS -sp_file $COCCI $OPT $OPTIONS               || \
93	$SPATCH -D org     $FLAGS -sp_file $COCCI $OPT $OPTIONS -no_show_diff || exit 1
94    else
95	$SPATCH -D $MODE   $FLAGS -sp_file $COCCI $OPT $OPTIONS || exit 1
96    fi
97
98}
99
100if [ "$COCCI" = "" ] ; then
101    for f in `find $srctree/scripts/coccinelle/ -name '*.cocci' -type f | sort`; do
102	coccinelle $f
103    done
104else
105    coccinelle $COCCI
106fi
107