Re: [PATCH] rs6000: Add ABI and libgcc support for C23 _BitInt [PR117584]

On Mon, Aug 03, 2026 at 10:58:38PM +0000, Joseph Myers wrote:
> On Tue, 28 Jul 2026, Michael Meissner wrote:
> 
> > On Mon, Jul 27, 2026 at 01:43:44PM +0200, Jakub Jelinek wrote:
> > > I also think that first the psABI should be updated (if it is still
> > > maintained, that is) and only afterwards the patch should be applied.
> > 
> > There is the issue of finding a way to update the ABIs.  There are many
> > moving parts, and we need to bring in people and bring them up to date.
> > 
> > And technically there are at least 3 ABIs, though I'm not sure if the
> > big endian 64-bit ABI using ELF v1 needs to be updated.  The ABIs are:
> > 
> >  * Little endian 64-bit ELF v2
> >  * Big endian 64-bit ELF v1
> >  * AIX
> >  * 32-bit ABIs
> 
> I think https://github.com/ryanarn/powerabi is still the right location 
> for the 32-bit ABIs.  I don't know where the sources of the 64-bit ABIs 
> are maintained.

Isn't ELF v2 maintained in https://github.com/OpenPOWERFoundation/ELFv2-ABI
?

	Jakub