[PATCH] D73809: eSupport] Don't modify the current EH context during stack unwinding

[Alexandre Ganea via Phabricator via llvm-commits]

aganea added a comment.

Thanks Reid for looking into this! So I suppose the problem is related to `llvm-symbolizer` not being invoked somehow in Stella's case? This seems to occur if either that exe is not in `%PATH%` or if `printSymbolizedStackTrace()` can't create the input/output files for symbolizer. Was that the bug?
And it looks like the llvm-symbolizer codepath already duplicates <https://github.com/llvm/llvm-project/blob/master/llvm/lib/Support/Windows/Signals.inc#L234> the `CONTEXT` like you do here, but then the fallback Dbghelp.dll doesn't duplicate, which most likely caused this issue.


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