diff options
Diffstat (limited to 'compiler-rt/lib/sanitizer_common/sanitizer_deadlock_detector.h')
| -rw-r--r-- | compiler-rt/lib/sanitizer_common/sanitizer_deadlock_detector.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_deadlock_detector.h b/compiler-rt/lib/sanitizer_common/sanitizer_deadlock_detector.h index fcdc3f2e516..ed05c0d6763 100644 --- a/compiler-rt/lib/sanitizer_common/sanitizer_deadlock_detector.h +++ b/compiler-rt/lib/sanitizer_common/sanitizer_deadlock_detector.h @@ -65,6 +65,7 @@ class DeadlockDetectorTLS { // and one DeadlockDetectorTLS object per evey thread. // This class is not thread safe, all concurrent accesses should be guarded // by an external lock. +// Not thread-safe, all accesses should be protected by an external lock. template <class BV> class DeadlockDetector { public: @@ -115,7 +116,7 @@ class DeadlockDetector { // Handle the lock event, return true if there is a cycle. // FIXME: handle RW locks, recusive locks, etc. bool onLock(DeadlockDetectorTLS *dtls, uptr cur_node) { - BV cur_locks; + BV &cur_locks = t1; cur_locks.clear(); uptr cur_idx = nodeToIndex(cur_node); for (uptr i = 0, n = dtls->numLocks(); i < n; i++) { @@ -163,6 +164,7 @@ class DeadlockDetector { BV recycled_nodes_; BVGraph<BV> g_; uptr data_[BV::kSize]; + BV t1; // Temporary object which we can not keep on stack. }; } // namespace __sanitizer |
