Commit 1421d87c authored by Committed by Ben Gamari
Switch VEH to VCH and allow disabling of SEH completely.
Exception handling on Windows is unfortunately a bit complicated. But essentially the VEH Handlers we currently have are running too early. This was a problem as it ran so early it also swallowed C++ exceptions and other software exceptions which the system could have very well recovered from. So instead we use a sequence of chains to for the exception handlers to run as late as possible. You really can't get any later than this. Please read the comment in the patch for more details. I'm also providing a switch to allow people to turn off the exception handling entirely. In case it does present a problem with their code. (Reverted and recommitted to fix authorship information) Test Plan: ./validate Reviewers: austin, hvr, bgamari, erikd, simonmar Reviewed By: bgamari Subscribers: rwbarton, thomie GHC Trac Issues: #13911, #12110 Differential Revision: https://phabricator.haskell.org/D3911
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