LXR linux/scripts/coccicheck

   1#!/bin/sh
   2
   3SPATCH="`which ${SPATCH:=spatch}`"
   4
   5if [ "$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=$1
  16else
  17    ONLINE=0
  18    FLAGS="-very_quiet"
  19    if [ "$KBUILD_EXTMOD" = "" ] ; then
  20        OPTIONS="-dir $srctree"
  21    else
  22        OPTIONS="-dir $KBUILD_EXTMOD -patch $srctree -I $srctree/include -I $KBUILD_EXTMOD/include"
  23    fi
  24fi
  25
  26if [ ! -x "$SPATCH" ]; then
  27    echo 'spatch is part of the Coccinelle project and is available at http://coccinelle.lip6.fr/'
  28    exit 1
  29fi
  30
  31if [ "$MODE" = "" ] ; then
  32    if [ "$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"
  38elif [ "$MODE" = "report" -o "$MODE" = "org" ] ; then
  39    FLAGS="$FLAGS -no_show_diff"
  40fi
  41
  42if [ "$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 ''
  47fi
  48
  49coccinelle () {
  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    else
  99        $SPATCH -D $MODE   $FLAGS -sp_file $COCCI $OPT $OPTIONS || exit 1
 100    fi
 101
 102}
 103
 104if [ "$COCCI" = "" ] ; then
 105    for f in `find $srctree/scripts/coccinelle/ -name '*.cocci' -type f | sort`; do
 106        coccinelle $f
 107    done
 108else
 109    coccinelle $COCCI
 110fi
 111