Add a target to use the Coccinelle checker
A 'coccicheck' target is added. It can be called with four different
modes. Each one generates a different kind of output, i.e. context,
patch, org, report, according to the corresponding mode to be
activated.
The new target calls the 'coccicheck' front-end in the 'scripts'
directory with the MODE argument. Every SmPL file in the
subdirectories of 'scripts/coccinelle' is then given to the front-end
and applied to the entire source tree.
The four modes behave as follows:
'report' generates a list in the following format:
file:line:column-column: message
'patch' proposes a fix, when possible.
'context' highlights lines of interest and their context in a
diff-like style. Lines of interest are indicated with '-'.
'org' generates a report in the Org mode format of Emacs.
Signed-off-by: Nicolas Palix <npalix@diku.dk>
Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
diff --git a/scripts/coccicheck b/scripts/coccicheck
new file mode 100755
index 0000000..037424b
--- /dev/null
+++ b/scripts/coccicheck
@@ -0,0 +1,54 @@
+#!/bin/sh
+
+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
+
+if [ "$MODE" = "" ] ; then
+ echo 'You have not explicitly specify the mode to use. Fallback to "report".'
+ echo 'You can specify the mode with "make coccicheck MODE=<mode>"'
+ echo 'Available modes are: report, patch, context, org'
+ MODE="report"
+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 ''
+
+function coccinelle {
+ COCCI="$1"
+ DIR="$2"
+
+ OPT=`grep "Option" $COCCI | cut -d':' -f2`
+ FILE=`echo $COCCI | sed "s|$DIR/||"`
+
+ echo "Processing `basename $COCCI` with option(s) \"$OPT\""
+ echo 'Message example to submit a patch:'
+
+ sed -e '/\/\/\//!d' -e 's|^///||' $COCCI
+
+ echo ' The semantic patch that makes this change is available'
+ echo " in $FILE."
+ echo ''
+ echo ' More information about semantic patching is available at'
+ echo ' http://coccinelle.lip6.fr/'
+ echo ''
+
+# The option '-parse_cocci' can be used to syntaxically check the SmPL files.
+#
+# $SPATCH -D $MODE -very_quiet -parse_cocci $COCCI $OPT > /dev/null
+
+ $SPATCH -D $MODE -very_quiet -sp_file $COCCI $OPT -dir $DIR
+}
+
+if [ "$COCCI" = "" ] ; then
+ for f in `find $srctree/scripts/coccinelle/ -name '*.cocci' -type f | sort`; do
+ coccinelle $f $srctree;
+ done
+else
+ coccinelle $COCCI $srctree
+fi