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