1#!/bin/bash 2 3# 4# This script requires at least spatch 5# version 1.0.0-rc11. 6# 7 8SPATCH="`which ${SPATCH:=spatch}`" 9 10if [ ! -x "$SPATCH" ]; then 11 echo 'spatch is part of the Coccinelle project and is available at http://coccinelle.lip6.fr/' 12 exit 1 13fi 14 15USE_JOBS="no" 16$SPATCH --help | grep "\-\-jobs" > /dev/null && USE_JOBS="yes" 17 18# The verbosity may be set by the environmental parameter V= 19# as for example with 'make V=1 coccicheck' 20 21if [ -n "$V" -a "$V" != "0" ]; then 22 VERBOSE="$V" 23else 24 VERBOSE=0 25fi 26 27if [ -z "$J" ]; then 28 NPROC=$(getconf _NPROCESSORS_ONLN) 29else 30 NPROC="$J" 31fi 32 33FLAGS="--very-quiet" 34 35# spatch only allows include directories with the syntax "-I include" 36# while gcc also allows "-Iinclude" and "-include include" 37COCCIINCLUDE=${LINUXINCLUDE//-I/-I } 38COCCIINCLUDE=${COCCIINCLUDE// -include/ --include} 39 40if [ "$C" = "1" -o "$C" = "2" ]; then 41 ONLINE=1 42 43 # Take only the last argument, which is the C file to test 44 shift $(( $# - 1 )) 45 OPTIONS="$COCCIINCLUDE $1" 46else 47 ONLINE=0 48 if [ "$KBUILD_EXTMOD" = "" ] ; then 49 OPTIONS="--dir $srctree $COCCIINCLUDE" 50 else 51 OPTIONS="--dir $KBUILD_EXTMOD $COCCIINCLUDE" 52 fi 53fi 54 55if [ "$KBUILD_EXTMOD" != "" ] ; then 56 OPTIONS="--patch $srctree $OPTIONS" 57fi 58 59# You can override by using SPFLAGS 60if [ "$USE_JOBS" = "no" ]; then 61 trap kill_running SIGTERM SIGINT 62 declare -a SPATCH_PID 63elif [ "$NPROC" != "1" ]; then 64 # Using 0 should work as well, refer to _SC_NPROCESSORS_ONLN use on 65 # https://github.com/rdicosmo/parmap/blob/master/setcore_stubs.c 66 OPTIONS="$OPTIONS --jobs $NPROC --chunksize 1" 67fi 68 69if [ "$MODE" = "" ] ; then 70 if [ "$ONLINE" = "0" ] ; then 71 echo 'You have not explicitly specified the mode to use. Using default "report" mode.' 72 echo 'Available modes are the following: patch, report, context, org' 73 echo 'You can specify the mode with "make coccicheck MODE=<mode>"' 74 echo 'Note however that some modes are not implemented by some semantic patches.' 75 fi 76 MODE="report" 77fi 78 79if [ "$MODE" = "chain" ] ; then 80 if [ "$ONLINE" = "0" ] ; then 81 echo 'You have selected the "chain" mode.' 82 echo 'All available modes will be tried (in that order): patch, report, context, org' 83 fi 84elif [ "$MODE" = "report" -o "$MODE" = "org" ] ; then 85 FLAGS="--no-show-diff $FLAGS" 86fi 87 88if [ "$ONLINE" = "0" ] ; then 89 echo '' 90 echo 'Please check for false positives in the output before submitting a patch.' 91 echo 'When using "patch" mode, carefully review the patch before submitting it.' 92 echo '' 93fi 94 95run_cmd_parmap() { 96 if [ $VERBOSE -ne 0 ] ; then 97 echo "Running ($NPROC in parallel): $@" 98 fi 99 $@ 2>/dev/null 100 if [[ $? -ne 0 ]]; then 101 echo "coccicheck failed" 102 exit $? 103 fi 104} 105 106run_cmd_old() { 107 local i 108 if [ $VERBOSE -ne 0 ] ; then 109 echo "Running ($NPROC in parallel): $@" 110 fi 111 for i in $(seq 0 $(( NPROC - 1)) ); do 112 eval "$@ --max $NPROC --index $i &" 113 SPATCH_PID[$i]=$! 114 if [ $VERBOSE -eq 2 ] ; then 115 echo "${SPATCH_PID[$i]} running" 116 fi 117 done 118 wait 119} 120 121run_cmd() { 122 if [ "$USE_JOBS" = "yes" ]; then 123 run_cmd_parmap $@ 124 else 125 run_cmd_old $@ 126 fi 127} 128 129kill_running() { 130 for i in $(seq 0 $(( NPROC - 1 )) ); do 131 if [ $VERBOSE -eq 2 ] ; then 132 echo "Killing ${SPATCH_PID[$i]}" 133 fi 134 kill ${SPATCH_PID[$i]} 2>/dev/null 135 done 136} 137 138# You can override heuristics with SPFLAGS, these must always go last 139OPTIONS="$OPTIONS $SPFLAGS" 140 141coccinelle () { 142 COCCI="$1" 143 144 OPT=`grep "Option" $COCCI | cut -d':' -f2` 145 146# The option '--parse-cocci' can be used to syntactically check the SmPL files. 147# 148# $SPATCH -D $MODE $FLAGS -parse_cocci $COCCI $OPT > /dev/null 149 150 if [ $VERBOSE -ne 0 -a $ONLINE -eq 0 ] ; then 151 152 FILE=`echo $COCCI | sed "s|$srctree/||"` 153 154 echo "Processing `basename $COCCI`" 155 echo "with option(s) \"$OPT\"" 156 echo '' 157 echo 'Message example to submit a patch:' 158 159 sed -ne 's|^///||p' $COCCI 160 161 if [ "$MODE" = "patch" ] ; then 162 echo ' The semantic patch that makes this change is available' 163 elif [ "$MODE" = "report" ] ; then 164 echo ' The semantic patch that makes this report is available' 165 elif [ "$MODE" = "context" ] ; then 166 echo ' The semantic patch that spots this code is available' 167 elif [ "$MODE" = "org" ] ; then 168 echo ' The semantic patch that makes this Org report is available' 169 else 170 echo ' The semantic patch that makes this output is available' 171 fi 172 echo " in $FILE." 173 echo '' 174 echo ' More information about semantic patching is available at' 175 echo ' http://coccinelle.lip6.fr/' 176 echo '' 177 178 if [ "`sed -ne 's|^//#||p' $COCCI`" ] ; then 179 echo 'Semantic patch information:' 180 sed -ne 's|^//#||p' $COCCI 181 echo '' 182 fi 183 fi 184 185 if [ "$MODE" = "chain" ] ; then 186 run_cmd $SPATCH -D patch \ 187 $FLAGS --cocci-file $COCCI $OPT $OPTIONS || \ 188 run_cmd $SPATCH -D report \ 189 $FLAGS --cocci-file $COCCI $OPT $OPTIONS --no-show-diff || \ 190 run_cmd $SPATCH -D context \ 191 $FLAGS --cocci-file $COCCI $OPT $OPTIONS || \ 192 run_cmd $SPATCH -D org \ 193 $FLAGS --cocci-file $COCCI $OPT $OPTIONS --no-show-diff || exit 1 194 elif [ "$MODE" = "rep+ctxt" ] ; then 195 run_cmd $SPATCH -D report \ 196 $FLAGS --cocci-file $COCCI $OPT $OPTIONS --no-show-diff && \ 197 run_cmd $SPATCH -D context \ 198 $FLAGS --cocci-file $COCCI $OPT $OPTIONS || exit 1 199 else 200 run_cmd $SPATCH -D $MODE $FLAGS --cocci-file $COCCI $OPT $OPTIONS || exit 1 201 fi 202 203} 204 205if [ "$COCCI" = "" ] ; then 206 for f in `find $srctree/scripts/coccinelle/ -name '*.cocci' -type f | sort`; do 207 coccinelle $f 208 done 209else 210 coccinelle $COCCI 211fi 212