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authorPaul E. McKenney <paulmck@kernel.org>2020-06-16 10:38:57 -0700
committerPaul E. McKenney <paulmck@kernel.org>2020-06-29 12:01:45 -0700
commit61b77be09e29e6dc152b1984691e5b1708e8a6ac (patch)
tree3647873044c7f24d063560ee4f0996178a87a027 /tools/testing/selftests/rcutorture/bin/kvm-recheck.sh
parenttorture: Correctly summarize build-only runs (diff)
downloadlinux-dev-61b77be09e29e6dc152b1984691e5b1708e8a6ac.tar.xz
linux-dev-61b77be09e29e6dc152b1984691e5b1708e8a6ac.zip
torture: Improve diagnostic for KCSAN-incapable compilers
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 <elver@google.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Acked-by: Marco Elver <elver@google.com>
Diffstat (limited to 'tools/testing/selftests/rcutorture/bin/kvm-recheck.sh')
-rwxr-xr-xtools/testing/selftests/rcutorture/bin/kvm-recheck.sh9
1 files 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 357899cfe249..840a4679a0d7 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