From 58fed4d65ae9f052eee909edb7aa1e0bfed93a21 Mon Sep 17 00:00:00 2001
From: "Michael J. Spencer" <bigcheesegs@gmail.com>
Date: Mon, 26 Jan 2015 17:05:02 +0000
Subject: [PATCH] [Support][Windows] Disable error dialog boxes when stack
 trace printing is enabled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227094 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Support/Windows/Signals.inc | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lib/Support/Windows/Signals.inc b/lib/Support/Windows/Signals.inc
index 35ba6f8e1bb..ad740c79a7a 100644
--- a/lib/Support/Windows/Signals.inc
+++ b/lib/Support/Windows/Signals.inc
@@ -279,6 +279,14 @@ void sys::DontRemoveFileOnSignal(StringRef Filename) {
 /// PrintStackTraceOnErrorSignal - When an error signal (such as SIBABRT or
 /// SIGSEGV) is delivered to the process, print a stack trace and then exit.
 void sys::PrintStackTraceOnErrorSignal() {
+  // Don't pop up any dialog boxes.
+  // We're already handling writing a "something went wrong" message.
+  _set_abort_behavior(0, _WRITE_ABORT_MSG);
+  // Disable Dr. Watson.
+  _set_abort_behavior(0, _CALL_REPORTFAULT);
+  // Disable standard error dialog box.
+  SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOGPFAULTERRORBOX);
+
   RegisterHandler();
   LeaveCriticalSection(&CriticalSection);
 }