#!/bin/bash ## This script requires at least spatch# version 1.0.0-rc11.# SPATCH="`which ${SPATCH:=spatch}`" trap kill_running SIGTERM SIGINTdeclare -a SPATCH_PID # The verbosity may be set by the environmental parameter V=# as for example with 'make V=1 coccicheck' if [ -n "$V" -a "$V" != "0" ]; then	VERBOSE="$V"else	VERBOSE=0fi if [ -z "$J" ]; then	NPROC=$(getconf _NPROCESSORS_ONLN)else	NPROC="$J"fi FLAGS="$SPFLAGS --very-quiet" # spatch only allows include directories with the syntax "-I include"# while gcc also allows "-Iinclude" and "-include include"COCCIINCLUDE=${LINUXINCLUDE//-I/-I }COCCIINCLUDE=${COCCIINCLUDE//-include/-I} if [ "$C" = "1" -o "$C" = "2" ]; then    ONLINE=1     # Take only the last argument, which is the C file to test    shift $(( $# - 1 ))    OPTIONS="$COCCIINCLUDE $1"else    ONLINE=0    if [ "$KBUILD_EXTMOD" = "" ] ; then        OPTIONS="--dir $srctree $COCCIINCLUDE"    else        OPTIONS="--dir $KBUILD_EXTMOD $COCCIINCLUDE"    fifi if [ "$KBUILD_EXTMOD" != "" ] ; then    OPTIONS="--patch $srctree $OPTIONS"fi if [ ! -x "$SPATCH" ]; then    echo 'spatch is part of the Coccinelle project and is available at http://coccinelle.lip6.fr/'    exit 1fi if [ "$MODE" = "" ] ; then    if [ "$ONLINE" = "0" ] ; then	echo 'You have not explicitly specified the mode to use. Using default "report" mode.'	echo 'Available modes are the following: patch, report, context, org'	echo 'You can specify the mode with "make coccicheck MODE=<mode>"'	echo 'Note however that some modes are not implemented by some semantic patches.'    fi    MODE="report"fi if [ "$MODE" = "chain" ] ; then    if [ "$ONLINE" = "0" ] ; then	echo 'You have selected the "chain" mode.'	echo 'All available modes will be tried (in that order): patch, report, context, org'    fielif [ "$MODE" = "report" -o "$MODE" = "org" ] ; then    FLAGS="$FLAGS --no-show-diff"fi if [ "$ONLINE" = "0" ] ; then    echo ''    echo 'Please check for false positives in the output before submitting a patch.'    echo 'When using "patch" mode, carefully review the patch before submitting it.'    echo ''fi run_cmd() {	local i	if [ $VERBOSE -ne 0 ] ; then		echo "Running ($NPROC in parallel): $@"	fi	for i in $(seq 0 $(( NPROC - 1)) ); do		eval "$@ --max $NPROC --index $i &"		SPATCH_PID[$i]=$!		if [ $VERBOSE -eq 2 ] ; then			echo "${SPATCH_PID[$i]} running"		fi	done	wait} kill_running() {	for i in $(seq $(( NPROC - 1 )) ); do		if [ $VERBOSE -eq 2 ] ; then			echo "Killing ${SPATCH_PID[$i]}"		fi		kill ${SPATCH_PID[$i]} 2>/dev/null	done} coccinelle () {    COCCI="$1"     OPT=`grep "Option" $COCCI | cut -d':' -f2` #   The option '--parse-cocci' can be used to syntactically check the SmPL files.##    $SPATCH -D $MODE $FLAGS -parse_cocci $COCCI $OPT > /dev/null     if [ $VERBOSE -ne 0 -a $ONLINE -eq 0 ] ; then 	FILE=`echo $COCCI | sed "s|$srctree/||"` 	echo "Processing `basename $COCCI`"	echo "with option(s) \"$OPT\""	echo ''	echo 'Message example to submit a patch:' 	sed -ne 's|^///||p' $COCCI 	if [ "$MODE" = "patch" ] ; then	    echo ' The semantic patch that makes this change is available'	elif [ "$MODE" = "report" ] ; then	    echo ' The semantic patch that makes this report is available'	elif [ "$MODE" = "context" ] ; then	    echo ' The semantic patch that spots this code is available'	elif [ "$MODE" = "org" ] ; then	    echo ' The semantic patch that makes this Org report is available'	else	    echo ' The semantic patch that makes this output is available'	fi	echo " in $FILE."	echo ''	echo ' More information about semantic patching is available at'	echo ' http://coccinelle.lip6.fr/'	echo '' 	if [ "`sed -ne 's|^//#||p' $COCCI`" ] ; then	    echo 'Semantic patch information:'	    sed -ne 's|^//#||p' $COCCI	    echo ''	fi    fi     if [ "$MODE" = "chain" ] ; then	run_cmd $SPATCH -D patch   \		$FLAGS --cocci-file $COCCI $OPT $OPTIONS               || \	run_cmd $SPATCH -D report  \		$FLAGS --cocci-file $COCCI $OPT $OPTIONS --no-show-diff || \	run_cmd $SPATCH -D context \		$FLAGS --cocci-file $COCCI $OPT $OPTIONS               || \	run_cmd $SPATCH -D org     \		$FLAGS --cocci-file $COCCI $OPT $OPTIONS --no-show-diff || exit 1    elif [ "$MODE" = "rep+ctxt" ] ; then	run_cmd $SPATCH -D report  \		$FLAGS --cocci-file $COCCI $OPT $OPTIONS --no-show-diff && \	run_cmd $SPATCH -D context \		$FLAGS --cocci-file $COCCI $OPT $OPTIONS || exit 1    else	run_cmd $SPATCH -D $MODE   $FLAGS --cocci-file $COCCI $OPT $OPTIONS || exit 1    fi } if [ "$COCCI" = "" ] ; then    for f in `find $srctree/scripts/coccinelle/ -name '*.cocci' -type f | sort`; do	coccinelle $f    doneelse    coccinelle $COCCIfi