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

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.

-- 
Joseph S. Myers
[email protected]