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