From: "Paul E. McKenney" <paul...@kernel.org>
Using --kcsan when the compiler does not support KCSAN results in this:
:CONFIG_KCSAN=y: improperly set
:CONFIG_KCSAN_REPORT_ONCE_IN_MS=100000: improperly set
:CONFIG_KCSAN_VERBOSE=y: improperly set
:CONFIG_KCSAN_INTERRUPT_WATCHER=y: improperly set
Clean KCSAN run in
/home/git/linux-rcu/tools/testing/selftests/rcutorture/res/2020.06.16-09.53.16
This is a bit obtuse, so this commit adds checks resulting in this:
:CONFIG_KCSAN=y: improperly set
:CONFIG_KCSAN_REPORT_ONCE_IN_MS=100000: improperly set
:CONFIG_KCSAN_VERBOSE=y: improperly set
:CONFIG_KCSAN_INTERRUPT_WATCHER=y: improperly set
Compiler or architecture does not support KCSAN!
Did you forget to switch your compiler with --kmake-arg
CC=<cc-that-supports-kcsan>?
Suggested-by: Marco Elver <el...@google.com>
Signed-off-by: Paul E. McKenney <paul...@kernel.org>
Acked-by: Marco Elver <el...@google.com>
---
tools/testing/selftests/rcutorture/bin/kvm-recheck.sh | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh
b/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh
index 357899c..840a467 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh
@@ -44,7 +44,8 @@ do
then
echo QEMU killed
fi
- configcheck.sh $i/.config $i/ConfigFragment
+ configcheck.sh $i/.config $i/ConfigFragment > $T 2>&1
+ cat $T
if test -r $i/Make.oldconfig.err
then
cat $i/Make.oldconfig.err
@@ -73,7 +74,11 @@ do
done
if test -f "$rd/kcsan.sum"
then
- if test -s "$rd/kcsan.sum"
+ if grep -q CONFIG_KCSAN=y $T
+ then
+ echo "Compiler or architecture does not support KCSAN!"
+ echo Did you forget to switch your compiler with
'--kmake-arg CC=<cc-that-supports-kcsan>'?
+ elif test -s "$rd/kcsan.sum"
then
echo KCSAN summary in $rd/kcsan.sum
else
--
2.9.5
