mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-17 15:38:51 +09:00
257 lines
7.1 KiB
Plaintext
257 lines
7.1 KiB
Plaintext
![]() |
#!/bin/bash
|
||
|
# SPDX-License-Identifier: GPL-2.0
|
||
|
# Linux kernel coccicheck
|
||
|
#
|
||
|
# Read doc/README.coccinelle
|
||
|
#
|
||
|
# This script requires at least spatch
|
||
|
# version 1.0.0-rc11.
|
||
|
|
||
|
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
|
||
|
|
||
|
SPATCH_VERSION=$($SPATCH --version | head -1 | awk '{print $3}')
|
||
|
SPATCH_VERSION_NUM=$(echo $SPATCH_VERSION | ${DIR}/scripts/ld-version.sh)
|
||
|
|
||
|
USE_JOBS="no"
|
||
|
$SPATCH --help | grep "\-\-jobs" > /dev/null && USE_JOBS="yes"
|
||
|
|
||
|
# The verbosity may be set by the environmental parameter V=
|
||
|
# as for example with 'make V=1 coccicheck'
|
||
|
|
||
|
if [ -n "$V" -a "$V" != "0" ]; then
|
||
|
VERBOSE="$V"
|
||
|
else
|
||
|
VERBOSE=0
|
||
|
fi
|
||
|
|
||
|
if [ -z "$J" ]; then
|
||
|
NPROC=$(getconf _NPROCESSORS_ONLN)
|
||
|
else
|
||
|
NPROC="$J"
|
||
|
fi
|
||
|
|
||
|
FLAGS="--very-quiet"
|
||
|
|
||
|
# You can use SPFLAGS to append extra arguments to coccicheck or override any
|
||
|
# heuristics done in this file as Coccinelle accepts the last options when
|
||
|
# options conflict.
|
||
|
#
|
||
|
# A good example for use of SPFLAGS is if you want to debug your cocci script,
|
||
|
# you can for instance use the following:
|
||
|
#
|
||
|
# $ export COCCI=scripts/coccinelle/misc/irqf_oneshot.cocci
|
||
|
# $ make coccicheck MODE=report DEBUG_FILE="all.err" SPFLAGS="--profile --show-trying" M=./drivers/mfd/arizona-irq.c
|
||
|
#
|
||
|
# "--show-trying" should show you what rule is being processed as it goes to
|
||
|
# stdout, you do not need a debug file for that. The profile output will be
|
||
|
# be sent to stdout, if you provide a DEBUG_FILE the profiling data can be
|
||
|
# inspected there.
|
||
|
#
|
||
|
# --profile will not output if --very-quiet is used, so avoid it.
|
||
|
echo $SPFLAGS | egrep -e "--profile|--show-trying" 2>&1 > /dev/null
|
||
|
if [ $? -eq 0 ]; then
|
||
|
FLAGS="--quiet"
|
||
|
fi
|
||
|
|
||
|
# spatch only allows include directories with the syntax "-I include"
|
||
|
# while gcc also allows "-Iinclude" and "-include include"
|
||
|
COCCIINCLUDE=${LINUXINCLUDE//-I/-I }
|
||
|
COCCIINCLUDE=${COCCIINCLUDE// -include/ --include}
|
||
|
|
||
|
if [ "$C" = "1" -o "$C" = "2" ]; then
|
||
|
ONLINE=1
|
||
|
|
||
|
# Take only the last argument, which is the C file to test
|
||
|
shift $(( $# - 1 ))
|
||
|
OPTIONS="$COCCIINCLUDE $1"
|
||
|
else
|
||
|
ONLINE=0
|
||
|
if [ "$KBUILD_EXTMOD" = "" ] ; then
|
||
|
OPTIONS="--dir $srctree $COCCIINCLUDE"
|
||
|
else
|
||
|
OPTIONS="--dir $KBUILD_EXTMOD $COCCIINCLUDE"
|
||
|
fi
|
||
|
fi
|
||
|
|
||
|
if [ "$KBUILD_EXTMOD" != "" ] ; then
|
||
|
OPTIONS="--patch $srctree $OPTIONS"
|
||
|
fi
|
||
|
|
||
|
# You can override by using SPFLAGS
|
||
|
if [ "$USE_JOBS" = "no" ]; then
|
||
|
trap kill_running SIGTERM SIGINT
|
||
|
declare -a SPATCH_PID
|
||
|
elif [ "$NPROC" != "1" ]; then
|
||
|
# Using 0 should work as well, refer to _SC_NPROCESSORS_ONLN use on
|
||
|
# https://github.com/rdicosmo/parmap/blob/master/setcore_stubs.c
|
||
|
OPTIONS="$OPTIONS --jobs $NPROC --chunksize 1"
|
||
|
fi
|
||
|
|
||
|
if [ "$MODE" = "" ] ; then
|
||
|
if [ "$ONLINE" = "0" ] ; then
|
||
|
echo 'You have not explicitly specified the mode to use. Using default "report" mode.'
|
||
|
echo 'Available modes are the following: patch, report, context, org'
|
||
|
echo 'You can specify the mode with "make coccicheck MODE=<mode>"'
|
||
|
echo 'Note however that some modes are not implemented by some semantic patches.'
|
||
|
fi
|
||
|
MODE="report"
|
||
|
fi
|
||
|
|
||
|
if [ "$MODE" = "chain" ] ; then
|
||
|
if [ "$ONLINE" = "0" ] ; then
|
||
|
echo 'You have selected the "chain" mode.'
|
||
|
echo 'All available modes will be tried (in that order): patch, report, context, org'
|
||
|
fi
|
||
|
elif [ "$MODE" = "report" -o "$MODE" = "org" ] ; then
|
||
|
FLAGS="--no-show-diff $FLAGS"
|
||
|
fi
|
||
|
|
||
|
if [ "$ONLINE" = "0" ] ; then
|
||
|
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 ''
|
||
|
fi
|
||
|
|
||
|
run_cmd_parmap() {
|
||
|
if [ $VERBOSE -ne 0 ] ; then
|
||
|
echo "Running ($NPROC in parallel): $@"
|
||
|
fi
|
||
|
if [ "$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
|
||
|
$@ 2>$DEBUG_FILE
|
||
|
if [[ $? -ne 0 ]]; then
|
||
|
echo "coccicheck failed"
|
||
|
exit $?
|
||
|
fi
|
||
|
}
|
||
|
|
||
|
run_cmd_old() {
|
||
|
local i
|
||
|
if [ $VERBOSE -ne 0 ] ; then
|
||
|
echo "Running ($NPROC in parallel): $@"
|
||
|
fi
|
||
|
for i in $(seq 0 $(( NPROC - 1)) ); do
|
||
|
eval "$@ --max $NPROC --index $i &"
|
||
|
SPATCH_PID[$i]=$!
|
||
|
if [ $VERBOSE -eq 2 ] ; then
|
||
|
echo "${SPATCH_PID[$i]} running"
|
||
|
fi
|
||
|
done
|
||
|
wait
|
||
|
}
|
||
|
|
||
|
run_cmd() {
|
||
|
if [ "$USE_JOBS" = "yes" ]; then
|
||
|
run_cmd_parmap $@
|
||
|
else
|
||
|
run_cmd_old $@
|
||
|
fi
|
||
|
}
|
||
|
|
||
|
kill_running() {
|
||
|
for i in $(seq 0 $(( NPROC - 1 )) ); do
|
||
|
if [ $VERBOSE -eq 2 ] ; then
|
||
|
echo "Killing ${SPATCH_PID[$i]}"
|
||
|
fi
|
||
|
kill ${SPATCH_PID[$i]} 2>/dev/null
|
||
|
done
|
||
|
}
|
||
|
|
||
|
# You can override heuristics with SPFLAGS, these must always go last
|
||
|
OPTIONS="$OPTIONS $SPFLAGS"
|
||
|
|
||
|
coccinelle () {
|
||
|
COCCI="$1"
|
||
|
|
||
|
OPT=`grep "Option" $COCCI | cut -d':' -f2`
|
||
|
REQ=`grep "Requires" $COCCI | cut -d':' -f2 | sed "s| ||"`
|
||
|
REQ_NUM=$(echo $REQ | ${DIR}/scripts/ld-version.sh)
|
||
|
if [ "$REQ_NUM" != "0" ] ; then
|
||
|
if [ "$SPATCH_VERSION_NUM" -lt "$REQ_NUM" ] ; then
|
||
|
echo "Skipping coccinele SmPL patch: $COCCI"
|
||
|
echo "You have coccinelle: $SPATCH_VERSION"
|
||
|
echo "This SmPL patch requires: $REQ"
|
||
|
return
|
||
|
fi
|
||
|
fi
|
||
|
|
||
|
# The option '--parse-cocci' can be used to syntactically check the SmPL files.
|
||
|
#
|
||
|
# $SPATCH -D $MODE $FLAGS -parse_cocci $COCCI $OPT > /dev/null
|
||
|
|
||
|
if [ $VERBOSE -ne 0 -a $ONLINE -eq 0 ] ; then
|
||
|
|
||
|
FILE=`echo $COCCI | sed "s|$srctree/||"`
|
||
|
|
||
|
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 $SPATCH -D patch \
|
||
|
$FLAGS --cocci-file $COCCI $OPT $OPTIONS || \
|
||
|
run_cmd $SPATCH -D report \
|
||
|
$FLAGS --cocci-file $COCCI $OPT $OPTIONS --no-show-diff || \
|
||
|
run_cmd $SPATCH -D context \
|
||
|
$FLAGS --cocci-file $COCCI $OPT $OPTIONS || \
|
||
|
run_cmd $SPATCH -D org \
|
||
|
$FLAGS --cocci-file $COCCI $OPT $OPTIONS --no-show-diff || exit 1
|
||
|
elif [ "$MODE" = "rep+ctxt" ] ; then
|
||
|
run_cmd $SPATCH -D report \
|
||
|
$FLAGS --cocci-file $COCCI $OPT $OPTIONS --no-show-diff && \
|
||
|
run_cmd $SPATCH -D context \
|
||
|
$FLAGS --cocci-file $COCCI $OPT $OPTIONS || exit 1
|
||
|
else
|
||
|
run_cmd $SPATCH -D $MODE $FLAGS --cocci-file $COCCI $OPT $OPTIONS || exit 1
|
||
|
fi
|
||
|
|
||
|
}
|
||
|
|
||
|
if [ "$COCCI" = "" ] ; then
|
||
|
for f in `find $srctree/scripts/coccinelle/ -name '*.cocci' -type f | sort`; do
|
||
|
coccinelle $f
|
||
|
done
|
||
|
else
|
||
|
coccinelle $COCCI
|
||
|
fi
|