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| author | Ingo Molnar <mingo@kernel.org> | 2020-10-09 08:35:01 +0200 |
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| committer | Ingo Molnar <mingo@kernel.org> | 2020-10-09 08:56:02 +0200 |
| commit | d6c4c11348816fb4d16e33bf47d559d7aa59350a (patch) | |
| tree | 14d6c6a8d7b88b4f06647717320562b6e525668a /tools/objtool | |
| parent | e705d397965811ac528d7213b42d74ffe43caf38 (diff) | |
| parent | cd290ec24633f51029dab0d25505fae7da0e1eda (diff) | |
| download | linux-rt-d6c4c11348816fb4d16e33bf47d559d7aa59350a.tar.gz | |
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 'tools/objtool')
| -rw-r--r-- | tools/objtool/check.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 90a66891441a..3bd156d39747 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -528,6 +528,61 @@ static const char *uaccess_safe_builtin[] = { "__tsan_write4", "__tsan_write8", "__tsan_write16", + "__tsan_read_write1", + "__tsan_read_write2", + "__tsan_read_write4", + "__tsan_read_write8", + "__tsan_read_write16", + "__tsan_atomic8_load", + "__tsan_atomic16_load", + "__tsan_atomic32_load", + "__tsan_atomic64_load", + "__tsan_atomic8_store", + "__tsan_atomic16_store", + "__tsan_atomic32_store", + "__tsan_atomic64_store", + "__tsan_atomic8_exchange", + "__tsan_atomic16_exchange", + "__tsan_atomic32_exchange", + "__tsan_atomic64_exchange", + "__tsan_atomic8_fetch_add", + "__tsan_atomic16_fetch_add", + "__tsan_atomic32_fetch_add", + "__tsan_atomic64_fetch_add", + "__tsan_atomic8_fetch_sub", + "__tsan_atomic16_fetch_sub", + "__tsan_atomic32_fetch_sub", + "__tsan_atomic64_fetch_sub", + "__tsan_atomic8_fetch_and", + "__tsan_atomic16_fetch_and", + "__tsan_atomic32_fetch_and", + "__tsan_atomic64_fetch_and", + "__tsan_atomic8_fetch_or", + "__tsan_atomic16_fetch_or", + "__tsan_atomic32_fetch_or", + "__tsan_atomic64_fetch_or", + "__tsan_atomic8_fetch_xor", + "__tsan_atomic16_fetch_xor", + "__tsan_atomic32_fetch_xor", + "__tsan_atomic64_fetch_xor", + "__tsan_atomic8_fetch_nand", + "__tsan_atomic16_fetch_nand", + "__tsan_atomic32_fetch_nand", + "__tsan_atomic64_fetch_nand", + "__tsan_atomic8_compare_exchange_strong", + "__tsan_atomic16_compare_exchange_strong", + "__tsan_atomic32_compare_exchange_strong", + "__tsan_atomic64_compare_exchange_strong", + "__tsan_atomic8_compare_exchange_weak", + "__tsan_atomic16_compare_exchange_weak", + "__tsan_atomic32_compare_exchange_weak", + "__tsan_atomic64_compare_exchange_weak", + "__tsan_atomic8_compare_exchange_val", + "__tsan_atomic16_compare_exchange_val", + "__tsan_atomic32_compare_exchange_val", + "__tsan_atomic64_compare_exchange_val", + "__tsan_atomic_thread_fence", + "__tsan_atomic_signal_fence", /* KCOV */ "write_comp_data", "check_kcov_mode", |