blob: 5d0a96fbc1d833a65a3a468604695bd3c4777cfc [file] [log] [blame]
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
ZEPHYR_BASE=$( builtin cd "$( dirname "$DIR" )" && pwd ${PWD_OPT})
DIR="$(dirname $(readlink -f $0))/.."
SPATCH="`which ${SPATCH:=spatch}`"
if [ ! -x "$SPATCH" ]; then
echo 'spatch is part of the Coccinelle project and is available at http://coccinelle.lip6.fr/'
exit 1
fi
VERBOSE=0
usage="Usage: ./scripts/coccicheck [OPTIONS]... [DIRECTORY|FILE]...
OPTIONS:
-------
-m= , --mode= specify the mode use {report, patch, org, context, chain}
-v= , --verbose= enable verbose output {1}
-j= , --jobs= number of jobs to use {0 - `nproc`}
-c= , --cocci= specify cocci script to use
-d= , --debug= specify file to store debug log
-f= , --sp-flag= pass additional flag to spatch
-h , --help display help and exit
Default values if any OPTION is not supplied:
--------------------------------------------
mode = report
verbose = 0 (disabled)
jobs = maximum jobs available on the machine
cocci = all cocci scripts available at scripts/coccinelle/*
If no [DIRECTORY|FILE] is supplied, entire codebase is processed.
For detailed documentation refer: doc/application/coccinelle.rst"
for i in "$@"
do
case $i in
-m=*|--mode=*)
MODE="${i#*=}"
shift # past argument=value
;;
-v=*|--verbose=*)
VERBOSE="${i#*=}"
shift # past argument=value
;;
-j=*|--jobs=*)
J="${i#*=}"
shift
;;
-c=*|--cocci=*)
COCCI="${i#*=}"
shift
;;
-d=*|--debug=*)
DEBUG_FILE="${i#*=}"
shift
;;
-f=*|--sp-flag=*)
SPFLAGS="${i#*=}"
shift
;;
-h|--help)
echo "$usage"
exit 1
;;
*)
FILE="${i#*=}"
if [ ! -e "$FILE" ]; then
echo "unknown option: '${i#*=}'"
echo "$usage"
exit 2
fi
;;
esac
done
FLAGS="--very-quiet"
if [ "$FILE" = "" ] ; then
OPTIONS="--dir $ZEPHYR_BASE"
else
OPTIONS="--dir $FILE"
fi
if [ -z "$J" ]; then
NPROC=$(getconf _NPROCESSORS_ONLN)
else
NPROC="$J"
fi
if [ "$FILE" != "" ] ; then
OPTIONS="--patch $ZEPHYR_BASE $OPTIONS"
fi
if [ "$NPROC" != "1" ]; then
# Using 0 should work as well, refer to _SC_NPROCESSORS_ONLN use on
# https://github.com/rdicosmo/parmap/blob/master/setcore_stubs.c
OPTIONS="$OPTIONS --jobs $NPROC --chunksize 1"
fi
if [ "$MODE" = "" ] ; then
echo 'You have not explicitly specified the mode to use. Using default "report" mode.'
echo 'Available modes are the following: 'patch', 'report', 'context', 'org''
echo 'You can specify the mode with "./scripts/coccicheck --mode=<mode>"'
echo 'Note however that some modes are not implemented by some semantic patches.'
MODE="report"
fi
if [ "$MODE" = "chain" ] ; then
echo 'You have selected the "chain" mode.'
echo 'All available modes will be tried (in that order): patch, report, context, org'
elif [ "$MODE" = "report" -o "$MODE" = "org" ] ; then
FLAGS="--no-show-diff $FLAGS"
fi
echo ''
echo 'Please check for false positives in the output before submitting a patch.'
echo 'When using "patch" mode, carefully review the patch before submitting it.'
echo ''
run_cmd_parmap() {
if [ $VERBOSE -ne 0 ] ; then
echo "Running ($NPROC in parallel): $@"
fi
echo $@ >>$DEBUG_FILE
$@ 2>>$DEBUG_FILE
err=$?
if [[ $err -ne 0 ]]; then
echo "coccicheck failed"
exit $err
fi
}
# You can override heuristics with SPFLAGS, these must always go last
OPTIONS="$OPTIONS $SPFLAGS"
coccinelle () {
COCCI="$1"
OPT=`grep "Options:" $COCCI | cut -d':' -f2`
VIRTUAL=`grep "virtual" $COCCI | cut -d' ' -f2`
if [[ $VIRTUAL = "" ]]; then
echo "No available modes found in \"$COCCI\" script."
echo "Consider adding virtual rules to the script."
exit 1
elif [[ $VIRTUAL != *"$MODE"* ]]; then
echo "Invalid mode \"$MODE\" supplied!"
echo "Available modes for \"`basename $COCCI`\" are: "$VIRTUAL""
if [[ $VIRTUAL == *report* ]]; then
MODE=report
elif [[ $VIRTUAL == *context* ]]; then
MODE=context
elif [[ $VIRTUAL == *patch* ]]; then
MODE=patch
else
MODE=org
fi
echo "Using random available mode: \"$MODE\""
echo ''
fi
if [ $VERBOSE -ne 0 ] ; then
FILE=${COCCI#$ZEPHYR_BASE/}
echo "Processing `basename $COCCI`"
echo "with option(s) \"$OPT\""
echo ''
echo 'Message example to submit a patch:'
sed -ne 's|^///||p' $COCCI
if [ "$MODE" = "patch" ] ; then
echo ' The semantic patch that makes this change is available'
elif [ "$MODE" = "report" ] ; then
echo ' The semantic patch that makes this report is available'
elif [ "$MODE" = "context" ] ; then
echo ' The semantic patch that spots this code is available'
elif [ "$MODE" = "org" ] ; then
echo ' The semantic patch that makes this Org report is available'
else
echo ' The semantic patch that makes this output is available'
fi
echo " in $FILE."
echo ''
echo ' More information about semantic patching is available at'
echo ' http://coccinelle.lip6.fr/'
echo ''
if [ "`sed -ne 's|^//#||p' $COCCI`" ] ; then
echo 'Semantic patch information:'
sed -ne 's|^//#||p' $COCCI
echo ''
fi
fi
if [ "$MODE" = "chain" ] ; then
run_cmd_parmap $SPATCH -D patch \
$FLAGS --cocci-file $COCCI $OPT $OPTIONS || \
run_cmd_parmap $SPATCH -D report \
$FLAGS --cocci-file $COCCI $OPT $OPTIONS --no-show-diff || \
run_cmd_parmap $SPATCH -D context \
$FLAGS --cocci-file $COCCI $OPT $OPTIONS || \
run_cmd_parmap $SPATCH -D org \
$FLAGS --cocci-file $COCCI $OPT $OPTIONS --no-show-diff || exit 1
elif [ "$MODE" = "rep+ctxt" ] ; then
run_cmd_parmap $SPATCH -D report \
$FLAGS --cocci-file $COCCI $OPT $OPTIONS --no-show-diff && \
run_cmd_parmap $SPATCH -D context \
$FLAGS --cocci-file $COCCI $OPT $OPTIONS || exit 1
else
run_cmd_parmap $SPATCH -D $MODE $FLAGS --cocci-file $COCCI $OPT $OPTIONS || exit 1
fi
MODE=report
}
if [ "$DEBUG_FILE" != "/dev/null" -a "$DEBUG_FILE" != "" ]; then
if [ -f $DEBUG_FILE ]; then
echo "Debug file \"$DEBUG_FILE\" exists, bailing ..."
exit
fi
else
DEBUG_FILE="/dev/null"
fi
if [ "$COCCI" = "" ] ; then
for f in `find $ZEPHYR_BASE/scripts/coccinelle/ -name '*.cocci' -type f | sort`; do
coccinelle $f
echo '-------------------------------------------------------------------------'
echo ''
done
else
coccinelle $COCCI
fi