[PATCH] D41252: [MinGW] Implement the --no-seh flag

[Martin Storsjö via Phabricator via llvm-commits]

mstorsjo added a comment.

In https://reviews.llvm.org/D41252#955735, @rnk wrote:

> Does link.exe set this flag if there are no handlers in .sxdata? This flag seems like it was added as a way to mark DLLs that don't have _load_config_used as not having any exception handlers for /safeseh. Maybe we should just set this flag implicitly if there were no handlers in .sxdata and _load_config_used never resolved.


So I guess this would make sense and match link.exe. Do you happen to know how this relates to SEH based exception handling in (GCC based) MinGW btw? When I build an executable (or DLL) with mingw-gcc that has SEH exceptions, llvm-readobj -coff-load-config doesn't show anything at all for such a binary. So if we were to link such binaries with LLD (which I don't do yet because libcxxabi lacks support for SEH), wouldn't we end up setting this flag for them as well?


https://reviews.llvm.org/D41252