[cfe-dev] May libc++ support symbol versioning?

Joerg Sonnenberger via cfe-dev cfe-dev at lists.llvm.org
Tue Feb 25 05:38:11 PST 2020

On Tue, Feb 25, 2020 at 06:30:21AM +0000, Zhihao Yuan via cfe-dev wrote:
> Hi,
> I got message from FreeBSD about whether
> they can upgrade to V2 ABI.  To summarize
> the discussion:
>   FreeBSD is not willing to land an ABI
>   break unless it is for the purpose of
>   introducing symbol version because
>   breaking libc++ ABI means breaking
>   ABI in three actively supported
>   FreeBSD versions.  There is no such
>   thing called "break in the next release."
> May libc++ support symbol versioning
> in V2 or a specific variant of ABI?

As I wrote in that thread, symbol versioning doesn't fix any of the
problems ABI stability in libc++ has.


More information about the cfe-dev mailing list