scripts/coccicheck

   1 #!/bin/sh
   2
   3 SPATCH="`which ${SPATCH:=spatch}`"
   4
   5 if [ "$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     if [ "$KBUILD_EXTMOD" = "" ] ; then
  13         # Workaround for Coccinelle < 0.2.3
  14         FLAGS="-I $srctree/include -very_quiet"
  15         shift $(( $# - 1 ))
  16         OPTIONS=$1
  17     else
  18         echo M= is not currently supported when C=1 or C=2
  19         exit 1
  20     fi
  21 else
  22     ONLINE=0
  23     FLAGS="-very_quiet"
  24     if [ "$KBUILD_EXTMOD" = "" ] ; then
  25         OPTIONS="-dir $srctree"
  26     else
  27         OPTIONS="-dir $KBUILD_EXTMOD -patch $srctree -I $srctree/include -I $KBUILD_EXTMOD/include"
  28     fi
  29 fi
  30
  31 if [ ! -x "$SPATCH" ]; then
  32     echo 'spatch is part of the Coccinelle project and is available at http://coccinelle.lip6.fr/'
  33     exit 1
  34 fi
  35
  36 if [ "$MODE" = "" ] ; then
  37     if [ "$ONLINE" = "0" ] ; then
  38         echo 'You have not explicitly specified the mode to use. Using default "chain" mode.'
  39         echo 'All available modes will be tried (in that order): patch, report, context, org'
  40         echo 'You can specify the mode with "make coccicheck MODE=<mode>"'
  41     fi
  42     MODE="chain"
  43 elif [ "$MODE" = "report" -o "$MODE" = "org" ] ; then
  44     FLAGS="$FLAGS -no_show_diff"
  45 fi
  46
  47 if [ "$ONLINE" = "0" ] ; then
  48     echo ''
  49     echo 'Please check for false positives in the output before submitting a patch.'
  50     echo 'When using "patch" mode, carefully review the patch before submitting it.'
  51     echo ''
  52 fi
  53
  54 coccinelle () {
  55     COCCI="$1"
  56
  57     OPT=`grep "Option" $COCCI | cut -d':' -f2`
  58
  59 #   The option '-parse_cocci' can be used to syntactically check the SmPL files.
  60 #
  61 #    $SPATCH -D $MODE $FLAGS -parse_cocci $COCCI $OPT > /dev/null
  62
  63     if [ "$ONLINE" = "0" ] ; then
  64
  65         FILE=`echo $COCCI | sed "s|$srctree/||"`
  66
  67         echo "Processing `basename $COCCI`"
  68         echo "with option(s) \"$OPT\""
  69         echo ''
  70         echo 'Message example to submit a patch:'
  71
  72         sed -ne 's|^///||p' $COCCI
  73
  74         if [ "$MODE" = "patch" ] ; then
  75             echo ' The semantic patch that makes this change is available'
  76         elif [ "$MODE" = "report" ] ; then
  77             echo ' The semantic patch that makes this report is available'
  78         elif [ "$MODE" = "context" ] ; then
  79             echo ' The semantic patch that spots this code is available'
  80         elif [ "$MODE" = "org" ] ; then
  81             echo ' The semantic patch that makes this Org report is available'
  82         else
  83             echo ' The semantic patch that makes this output is available'
  84         fi
  85         echo " in $FILE."
  86         echo ''
  87         echo ' More information about semantic patching is available at'
  88         echo ' http://coccinelle.lip6.fr/'
  89         echo ''
  90
  91         if [ "`sed -ne 's|^//#||p' $COCCI`" ] ; then
  92             echo 'Semantic patch information:'
  93             sed -ne 's|^//#||p' $COCCI
  94             echo ''
  95         fi
  96     fi
  97
  98     if [ "$MODE" = "chain" ] ; then
  99         $SPATCH -D patch   $FLAGS -sp_file $COCCI $OPT $OPTIONS               || \
 100         $SPATCH -D report  $FLAGS -sp_file $COCCI $OPT $OPTIONS -no_show_diff || \
 101         $SPATCH -D context $FLAGS -sp_file $COCCI $OPT $OPTIONS               || \
 102         $SPATCH -D org     $FLAGS -sp_file $COCCI $OPT $OPTIONS -no_show_diff || exit 1
 103     else
 104         $SPATCH -D $MODE   $FLAGS -sp_file $COCCI $OPT $OPTIONS || exit 1
 105     fi
 106
 107 }
 108
 109 if [ "$COCCI" = "" ] ; then
 110     for f in `find $srctree/scripts/coccinelle/ -name '*.cocci' -type f | sort`; do
 111         coccinelle $f
 112     done
 113 else
 114     coccinelle $COCCI
 115 fi