================
@@ -133,6 +133,10 @@ _LIBUNWIND_EXPORT _Unwind_Reason_Code
_Unwind_Backtrace(_Unwind_Trace_Fn callback, void *ref) {
unw_cursor_t cursor;
unw_context_t uc;
+#if __has_feature(memory_sanitizer)
+ __builtin_memset(&cursor, 0, sizeof(cursor));
----------------
chestnykh wrote:
It's better to create a bug on msan?
https://github.com/llvm/llvm-project/pull/120013
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