The command "make coccicheck C=1 CHECK=scripts/coccicheck" results in the
error:
./scripts/coccicheck: line 65: -1: shift count out of range
This happens because every time the C variable is specified,
the shell arguments need to be "shifted" in order to take only
the last argument, which is the C file to test. These shell arguments
mostly comprise flags that have been set in the Makefile. However,
when coccicheck is specified in the make command as a rule, the
number of shell arguments is zero, thus passing the invalid value -1
to the shift command, resulting in an error.
Modify coccicheck to use the shift command only when
number of shell arguments is not zero.
Signed-off-by: Sumera Priyadarsini <sylphrenadin@xxxxxxxxx>
---
Changes in V2:
- Fix spelling errors as suggested by Markus Elfring
---
scripts/coccicheck | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git a/scripts/coccicheck b/scripts/coccicheck
index e04d328210ac..5c8df337e1e3 100755
--- a/scripts/coccicheck
+++ b/scripts/coccicheck
@@ -61,9 +61,19 @@ 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"
+ # If the rule coccicheck is specified when calling make, number of
+ # arguments is zero
+ if [ $# -ne 0 ]; then
+ # Take only the last argument, which is the C file to test
+ shift $(( $# -1 ))
+ OPTIONS="$COCCIINCLUDE $1"
+ else
+ if [ "$KBUILD_EXTMOD" = "" ] ; then
+ OPTIONS="--dir $srctree $COCCIINCLUDE"
+ else
+ OPTIONS="--dir $KBUILD_EXTMOD $COCCIINCLUDE"
+ fi
+ fi
# No need to parallelize Coccinelle since this mode takes one input file.
NPROC=1
--
2.25.1
