[PATCH] D39673: Toolchain: Normalize dwarf, sjlj and seh eh
Martell Malone via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Mon Nov 6 23:57:16 PST 2017
martell added a comment.
In https://reviews.llvm.org/D39673, @martell wrote:
> Long term I would like the MinGW Driver to load a different libunwind depending on the exception model but that discussion might still be a little off.
In https://reviews.llvm.org/D39673#917510, @mstorsjo wrote:
> I don't really see what would be necessary there; a matching unwinding library should be provided in whatever C++ and compiler runtime library you use, so that's mostly an issue for whoever sets up the environment to build libraries in the right configurations matching it as a whole.
I mostly expect this to be useful where environment has builds all 3 versions of the libunwind. where the library is named differently based on the eh model.
e.g. `libunwind-sjlj.a` `libunwind-seh.a` and `libunwind-dwarf.a`
With the above exception flags the version of libunwind with the matching model should be automatically linked, I imagine it to be stored in a similar locations as the compiler-rt libs.
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