From 03a10740898eeb2b0c7a7c6bea3e293a221309a1 Mon Sep 17 00:00:00 2001
From: Martin Storsjo <martin@martin.st>
Date: Tue, 11 Dec 2018 09:53:11 +0000
Subject: [SEH] Zero-initialize EXCEPTION_RECORD and UNWIND_HISTORY_TABLE
 before calling RtlUnwindEx

This fixes PR39935.

git-svn-id: https://llvm.org/svn/llvm-project/libunwind/trunk@348836 91177308-0d34-0410-b5e6-96231b3b80d8
---
 src/Unwind-seh.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/Unwind-seh.cpp b/src/Unwind-seh.cpp
index 73616a8..73a950a 100644
--- a/src/Unwind-seh.cpp
+++ b/src/Unwind-seh.cpp
@@ -374,6 +374,8 @@ _Unwind_Resume(_Unwind_Exception *exception_object) {
     CONTEXT ms_ctx;
     UNWIND_HISTORY_TABLE hist;
 
+    memset(&ms_exc, 0, sizeof(ms_exc));
+    memset(&hist, 0, sizeof(hist));
     ms_exc.ExceptionCode = STATUS_GCC_THROW;
     ms_exc.ExceptionFlags = EXCEPTION_NONCONTINUABLE;
     ms_exc.NumberParameters = 4;
-- 
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