Commit 74425eee authored by Nicolas Palix's avatar Nicolas Palix Committed by Michal Marek
Browse files

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: default avatarNicolas Palix <npalix@diku.dk>
Signed-off-by: default avatarJulia Lawall <julia@diku.dk>
Acked-by: default avatarSam Ravnborg <sam@ravnborg.org>
Acked-by: default avatarJoerg Roedel <joerg.roedel@amd.com>
Signed-off-by: default avatarMichal Marek <mmarek@suse.cz>
parent 64ffc9ff

MAINTAINERS

+10 −0
Original line number Diff line number Diff line
@@ -1476,6 +1476,16 @@ M: Daniel Oliveira Nascimento <don@syst.com.br> 
S:	Supported

F:	drivers/platform/x86/classmate-laptop.c



COCCINELLE/Semantic Patches (SmPL)

M:	Julia Lawall <julia@diku.dk>

M:	Gilles Muller <Gilles.Muller@lip6.fr>

M:	Nicolas Palix <npalix@diku.dk>

L:	cocci@diku.dk (moderated for non-subscribers)

W:	http://coccinelle.lip6.fr/

S:	Supported

F:	scripts/coccinelle/

F:	scripts/coccicheck



CODA FILE SYSTEM

M:	Jan Harkes <jaharkes@cs.cmu.edu>

M:	coda@cs.cmu.edu

Makefile

+7 −3
Original line number Diff line number Diff line
@@ -412,7 +412,7 @@ endif 
# of make so .config is not included in this case either (for *config).



no-dot-config-targets := clean mrproper distclean \

			 cscope TAGS tags help %docs check% \

			 cscope TAGS tags help %docs check% coccicheck \

			 include/linux/version.h headers_% \

			 kernelrelease kernelversion
@@ -1279,8 +1279,9 @@ help: 
	@echo  '  includecheck    - Check for duplicate included header files'

	@echo  '  export_report   - List the usages of all exported symbols'

	@echo  '  headers_check   - Sanity check on exported headers'

	@echo  '  headerdep       - Detect inclusion cycles in headers'; \

	 echo  ''

	@echo  '  headerdep       - Detect inclusion cycles in headers'

	@$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help

	@echo  ''

	@echo  'Kernel packaging:'

	@$(MAKE) $(build)=$(package-dir) help

	@echo  ''
@@ -1439,6 +1440,9 @@ versioncheck: 
		-name '*.[hcS]' -type f -print | sort \

		| xargs $(PERL) -w $(srctree)/scripts/checkversion.pl



coccicheck:

	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@



namespacecheck:

	$(PERL) $(srctree)/scripts/namespace.pl

scripts/Makefile.help

0 → 100644
+3 −0
Original line number Diff line number Diff line 


checker-help:

	@echo  '  coccicheck      - Check with Coccinelle.'

scripts/coccicheck

0 → 100755
+54 −0
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#!/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

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