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Re: libstdc++ c++98 & c++11 ABI incompatibility


Hi,

On Mon, 2 Jul 2012, Jeff Law wrote:

> On 07/02/2012 11:53 AM, Paolo Carlini wrote:
> > 
> > I also want to mention (I don't think somebody did already in the
> > thread) that at some point, with Jason too, we discussed the idea of
> > adding to each binary a marker about the ABI version which then would be
> > used by the linker to warn or error out. This vague idea goes  of course
> > well beyond our specific needs for the C++98 conforming std::list vs the
> > C++11 conforming version of it.
> Yup.  I've floated this idea as well.  Some kind of note section with abi
> information in it plus some linker magic to detect and error/warn when
> mixing/matching bits with different abis.

As we see in the PR it's also the dynamic loader that would have to 
prevent mixing any c++98 and c++11 code in the same process image :-/


Ciao,
Michael.


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