diff options
Diffstat (limited to 'lib/sanitizer_common/sanitizer_stackdepot.cc')
-rw-r--r-- | lib/sanitizer_common/sanitizer_stackdepot.cc | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/lib/sanitizer_common/sanitizer_stackdepot.cc b/lib/sanitizer_common/sanitizer_stackdepot.cc index f10f1f973fd0..59b53f4dcd84 100644 --- a/lib/sanitizer_common/sanitizer_stackdepot.cc +++ b/lib/sanitizer_common/sanitizer_stackdepot.cc @@ -22,7 +22,8 @@ struct StackDepotNode { StackDepotNode *link; u32 id; atomic_uint32_t hash_and_use_count; // hash_bits : 12; use_count : 20; - uptr size; + u32 size; + u32 tag; uptr stack[1]; // [size] static const u32 kTabSizeLog = 20; @@ -37,7 +38,8 @@ struct StackDepotNode { bool eq(u32 hash, const args_type &args) const { u32 hash_bits = atomic_load(&hash_and_use_count, memory_order_relaxed) & kHashMask; - if ((hash & kHashMask) != hash_bits || args.size != size) return false; + if ((hash & kHashMask) != hash_bits || args.size != size || args.tag != tag) + return false; uptr i = 0; for (; i < size; i++) { if (stack[i] != args.trace[i]) return false; @@ -72,10 +74,11 @@ struct StackDepotNode { void store(const args_type &args, u32 hash) { atomic_store(&hash_and_use_count, hash & kHashMask, memory_order_relaxed); size = args.size; + tag = args.tag; internal_memcpy(stack, args.trace, size * sizeof(uptr)); } args_type load() const { - return args_type(&stack[0], size); + return args_type(&stack[0], size, tag); } StackDepotHandle get_handle() { return StackDepotHandle(this); } |