[cfe-dev] Porting libcxxabi / Unwind to Windows / MingW 32 bit

[Yaron Keren]

Hi David,

It's a good idea to have compiler-rt + unwind project in one project as a
libgcc replacement. We can name the project "libclang".

While at it, the rest of libcxxabi (the _cxa functions) may be merged into
libcxx as a complete replacement for libstdc++.

This project structure matches the gcc library organization and thus will
be easier for people (and toolchains) to use them.

Yaron



2013/11/2 David Chisnall <David.Chisnall at cl.cam.ac.uk>

> On 2 Nov 2013, at 11:02, Yaron Keren <yaron.keren at gmail.com> wrote:
>
> > In any case, instead of hacking around libgcc, completely replacing it
> with libcxxabi/Unwind + compiler-rt (thanks Jean!) seems to be the better
> alternative.
>
> I don't think I got a reply last time I asked this:
>
> Please can we move libcxxabi/Unwind into the compiler-rt umbrella?  The
> code there implements the language-agnostic part of the unwind library and
> so is useful for any language using the Itanium exception model.  Having it
> in libc++abi is likely to cause confusion when people try to mix
> libgcc_eh.so / libgcc_s and libc++abi, both of which will be trying to
> provide the same symbols and have their own mechanisms for registering
> exceptions.
>
> We'd very much like to replace the libgcc family in FreeBSD 11 (and have
> the replacement as an option some time in the 10.x timeframe) and having
> all of the required code in a single place would make our life easier.  The
> compiler-rt project seems the obvious place for it.
>
> David
>
>
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