1#!/bin/bash 2 3# 4# This script requires at least spatch 5# version 1.0.0-rc11. 6# 7 8SPATCH="`which ${SPATCH:=spatch}`" 9 10trap kill_running SIGTERM SIGINT 11declare -a SPATCH_PID 12 13# The verbosity may be set by the environmental parameter V= 14# as for example with 'make V=1 coccicheck' 15 16if [ -n "$V" -a "$V" != "0" ]; then 17 VERBOSE="$V" 18else 19 VERBOSE=0 20fi 21 22if [ -z "$J" ]; then 23 NPROC=$(getconf _NPROCESSORS_ONLN) 24else 25 NPROC="$J" 26fi 27 28FLAGS="$SPFLAGS --very-quiet" 29 30# spatch only allows include directories with the syntax "-I include" 31# while gcc also allows "-Iinclude" and "-include include" 32COCCIINCLUDE=${LINUXINCLUDE//-I/-I } 33COCCIINCLUDE=${COCCIINCLUDE// -include/ --include} 34 35if [ "$C" = "1" -o "$C" = "2" ]; then 36 ONLINE=1 37 38 # Take only the last argument, which is the C file to test 39 shift $(( $# - 1 )) 40 OPTIONS="$COCCIINCLUDE $1" 41else 42 ONLINE=0 43 if [ "$KBUILD_EXTMOD" = "" ] ; then 44 OPTIONS="--dir $srctree $COCCIINCLUDE" 45 else 46 OPTIONS="--dir $KBUILD_EXTMOD $COCCIINCLUDE" 47 fi 48fi 49 50if [ "$KBUILD_EXTMOD" != "" ] ; then 51 OPTIONS="--patch $srctree $OPTIONS" 52fi 53 54if [ ! -x "$SPATCH" ]; then 55 echo 'spatch is part of the Coccinelle project and is available at http://coccinelle.lip6.fr/' 56 exit 1 57fi 58 59if [ "$MODE" = "" ] ; then 60 if [ "$ONLINE" = "0" ] ; then 61 echo 'You have not explicitly specified the mode to use. Using default "report" mode.' 62 echo 'Available modes are the following: patch, report, context, org' 63 echo 'You can specify the mode with "make coccicheck MODE=<mode>"' 64 echo 'Note however that some modes are not implemented by some semantic patches.' 65 fi 66 MODE="report" 67fi 68 69if [ "$MODE" = "chain" ] ; then 70 if [ "$ONLINE" = "0" ] ; then 71 echo 'You have selected the "chain" mode.' 72 echo 'All available modes will be tried (in that order): patch, report, context, org' 73 fi 74elif [ "$MODE" = "report" -o "$MODE" = "org" ] ; then 75 FLAGS="$FLAGS --no-show-diff" 76fi 77 78if [ "$ONLINE" = "0" ] ; then 79 echo '' 80 echo 'Please check for false positives in the output before submitting a patch.' 81 echo 'When using "patch" mode, carefully review the patch before submitting it.' 82 echo '' 83fi 84 85run_cmd() { 86 local i 87 if [ $VERBOSE -ne 0 ] ; then 88 echo "Running ($NPROC in parallel): $@" 89 fi 90 for i in $(seq 0 $(( NPROC - 1)) ); do 91 eval "$@ --max $NPROC --index $i &" 92 SPATCH_PID[$i]=$! 93 if [ $VERBOSE -eq 2 ] ; then 94 echo "${SPATCH_PID[$i]} running" 95 fi 96 done 97 wait 98} 99 100kill_running() { 101 for i in $(seq 0 $(( NPROC - 1 )) ); do 102 if [ $VERBOSE -eq 2 ] ; then 103 echo "Killing ${SPATCH_PID[$i]}" 104 fi 105 kill ${SPATCH_PID[$i]} 2>/dev/null 106 done 107} 108 109coccinelle () { 110 COCCI="$1" 111 112 OPT=`grep "Option" $COCCI | cut -d':' -f2` 113 114# The option '--parse-cocci' can be used to syntactically check the SmPL files. 115# 116# $SPATCH -D $MODE $FLAGS -parse_cocci $COCCI $OPT > /dev/null 117 118 if [ $VERBOSE -ne 0 -a $ONLINE -eq 0 ] ; then 119 120 FILE=`echo $COCCI | sed "s|$srctree/||"` 121 122 echo "Processing `basename $COCCI`" 123 echo "with option(s) \"$OPT\"" 124 echo '' 125 echo 'Message example to submit a patch:' 126 127 sed -ne 's|^///||p' $COCCI 128 129 if [ "$MODE" = "patch" ] ; then 130 echo ' The semantic patch that makes this change is available' 131 elif [ "$MODE" = "report" ] ; then 132 echo ' The semantic patch that makes this report is available' 133 elif [ "$MODE" = "context" ] ; then 134 echo ' The semantic patch that spots this code is available' 135 elif [ "$MODE" = "org" ] ; then 136 echo ' The semantic patch that makes this Org report is available' 137 else 138 echo ' The semantic patch that makes this output is available' 139 fi 140 echo " in $FILE." 141 echo '' 142 echo ' More information about semantic patching is available at' 143 echo ' http://coccinelle.lip6.fr/' 144 echo '' 145 146 if [ "`sed -ne 's|^//#||p' $COCCI`" ] ; then 147 echo 'Semantic patch information:' 148 sed -ne 's|^//#||p' $COCCI 149 echo '' 150 fi 151 fi 152 153 if [ "$MODE" = "chain" ] ; then 154 run_cmd $SPATCH -D patch \ 155 $FLAGS --cocci-file $COCCI $OPT $OPTIONS || \ 156 run_cmd $SPATCH -D report \ 157 $FLAGS --cocci-file $COCCI $OPT $OPTIONS --no-show-diff || \ 158 run_cmd $SPATCH -D context \ 159 $FLAGS --cocci-file $COCCI $OPT $OPTIONS || \ 160 run_cmd $SPATCH -D org \ 161 $FLAGS --cocci-file $COCCI $OPT $OPTIONS --no-show-diff || exit 1 162 elif [ "$MODE" = "rep+ctxt" ] ; then 163 run_cmd $SPATCH -D report \ 164 $FLAGS --cocci-file $COCCI $OPT $OPTIONS --no-show-diff && \ 165 run_cmd $SPATCH -D context \ 166 $FLAGS --cocci-file $COCCI $OPT $OPTIONS || exit 1 167 else 168 run_cmd $SPATCH -D $MODE $FLAGS --cocci-file $COCCI $OPT $OPTIONS || exit 1 169 fi 170 171} 172 173if [ "$COCCI" = "" ] ; then 174 for f in `find $srctree/scripts/coccinelle/ -name '*.cocci' -type f | sort`; do 175 coccinelle $f 176 done 177else 178 coccinelle $COCCI 179fi 180