Make PreventCoreFiles() do the right thing on Windows.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20237 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/System/Win32/Process.inc b/lib/System/Win32/Process.inc
index 392bac2e471a9805b8f21c41c96cca434ac8abd1..7c8de64473226a0d12516125fa37a07b23e60b4d 100644 (file)
--- a/lib/System/Win32/Process.inc
+++ b/lib/System/Win32/Process.inc
@@ -95,9 +95,12 @@ Process::GetTimeUsage(
 // their operation. To prevent the disk from filling up, this configuration item
 // does what's necessary to prevent their generation.
 void Process::PreventCoreFiles() {
-  // Windows doesn't do core files, so nothing to do.
-  // Although...  it might be nice to prevent the do-you-want-to-debug
-  // dialog box from coming up.  Or maybe not...
+  // Windows doesn't do core files, but it does do modal pop-up message
+  // boxes.  As this method is used by bugpoint, preventing these pop-ups
+  // is the moral equivalent of suppressing core files.
+  SetErrorMode(SEM_FAILCRITICALERRORS |
+               SEM_NOGPFAULTERRORBOX |
+               SEM_NOOPENFILEERRORBOX);
 }
 
 bool Process::StandardInIsUserInput() {