[PATCH] D67051: [LLD] [COFF] Demangle itanium symbols in mingw mode

[Martin Storsjö via Phabricator via llvm-commits]

mstorsjo added a comment.

In D67051#1654132 <https://reviews.llvm.org/D67051#1654132>, @ruiu wrote:

> I'm not very familiar with MinGW, but is Itanium name mangling in use on MinGW? MinGW is intended to be a native development environment for Windows, so I thought that they naturally use the platform way of mangling symbols.


Yes, MinGW uses Itanium name mangling only.

Yes, MinGW is intended to be a native development environment, but despite this (for historical reasons) it has done a lot of things very differently, due to being based on the GNU tools originally, and generally doing unixy things in COFF files. GCC doesn't support the MSVC C++ ABI at all, and the name mangling is only a very small part of the whole C++ ABI.

Generally the level of compatibility is that you can call between DLLs built by different tools, as long as it only has a pure C API, but you shouldn't expect to mix object files (or static libraries) between MSVC/link.exe and GCC/ld.bfd.


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