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| author | Ingo Molnar <mingo@kernel.org> | 2020-10-09 08:35:01 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2020-10-09 08:56:02 +0200 |
| commit | d6c4c11348816fb4d16e33bf47d559d7aa59350a (patch) | |
| tree | 14d6c6a8d7b88b4f06647717320562b6e525668a /scripts/Makefile.kcsan | |
| parent | e705d397965811ac528d7213b42d74ffe43caf38 (diff) | |
| parent | cd290ec24633f51029dab0d25505fae7da0e1eda (diff) | |
| download | linux-d6c4c11348816fb4d16e33bf47d559d7aa59350a.tar.bz2 | |
Merge branch 'kcsan' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into locking/core
Pull KCSAN updates for v5.10 from Paul E. McKenney:
- Improve kernel messages.
- Be more permissive with bitops races under KCSAN_ASSUME_PLAIN_WRITES_ATOMIC=y.
- Optimize debugfs stat counters.
- Introduce the instrument_*read_write() annotations, to provide a
finer description of certain ops - using KCSAN's compound instrumentation.
Use them for atomic RNW and bitops, where appropriate.
Doing this might find new races.
(Depends on the compiler having tsan-compound-read-before-write=1 support.)
- Support atomic built-ins, which will help certain architectures, such as s390.
- Misc enhancements and smaller fixes.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'scripts/Makefile.kcsan')
| -rw-r--r-- | scripts/Makefile.kcsan | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/Makefile.kcsan b/scripts/Makefile.kcsan index c50f27b3ac56..c37f9518d5d9 100644 --- a/scripts/Makefile.kcsan +++ b/scripts/Makefile.kcsan @@ -11,5 +11,5 @@ endif # of some options does not break KCSAN nor causes false positive reports. CFLAGS_KCSAN := -fsanitize=thread \ $(call cc-option,$(call cc-param,tsan-instrument-func-entry-exit=0) -fno-optimize-sibling-calls) \ - $(call cc-option,$(call cc-param,tsan-instrument-read-before-write=1)) \ + $(call cc-option,$(call cc-param,tsan-compound-read-before-write=1),$(call cc-option,$(call cc-param,tsan-instrument-read-before-write=1))) \ $(call cc-param,tsan-distinguish-volatile=1) |