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Date: Thu, 4 Jun 2020 15:37:27 -0400
From: Rich Felker <dalias@...c.org>
To: David Edelsohn <dje.gcc@...il.com>
Cc: musl@...ts.openwall.com,
Segher Boessenkool <segher@...nel.crashing.org>,
Daniel Kolesa <daniel@...aforge.org>,
Michal Suchánek <msuchanek@...e.de>,
Joseph Myers <joseph@...esourcery.com>,
GNU C Library <libc-alpha@...rceware.org>, eery@...erfox.es,
Will Springer <skirmisher@...tonmail.com>,
Palmer Dabbelt via binutils <binutils@...rceware.org>,
via libc-dev <libc-dev@...ts.llvm.org>,
linuxppc-dev@...ts.ozlabs.org
Subject: Re: Re: ppc64le and 32-bit LE userland compatibility
On Thu, Jun 04, 2020 at 03:00:51PM -0400, David Edelsohn wrote:
> On Thu, Jun 4, 2020 at 1:46 PM Rich Felker <dalias@...c.org> wrote:
> >
> > On Thu, Jun 04, 2020 at 12:33:12PM -0500, Segher Boessenkool wrote:
> > > On Thu, Jun 04, 2020 at 01:18:44PM -0400, Rich Felker wrote:
> > > > On Thu, Jun 04, 2020 at 12:12:32PM -0500, Segher Boessenkool wrote:
> > > > > On Tue, Jun 02, 2020 at 05:13:25PM +0200, Daniel Kolesa wrote:
> > > > > > well, ppc64le already cannot be run on those, as far as I know (I
> > > > > > don't think it's possible to build ppc64le userland without VSX in
> > > > > > any configuration)
> > > > >
> > > > > VSX is required by the ELFv2 ABI:
> > > > >
> > > > > """
> > > > > Specifically, to use this ABI and ABI-compliant programs, OpenPOWER-
> > > > > compliant processors must implement the following categories:
> > > >
> > > > This is not actually ABI but IBM policy laundered into an ABI
> > > > document, which musl does not honor.
> > >
> > > It is the ABI. If you think it should be different, make your own ABI,
> > > don't pretend the existing ABI is different than what it is. Thank you.
> >
> > Our ABI is as specified in the ELFv2 document, but with ld as ld64,
> > and minus gratuitous requirements on ISA level that are not part of
> > implementing linkage.
>
> Rich,
>
> If you are changing the Power ELFv2 ABI then it is not the Power ELFv2
> ABI. You can't cherry-pick what you like and claim that it is
> compatible. You are not conforming to the ABI.
You are aware of this and you are aware that I don't care about your
opinion on the matter, and that I don't appreciate your ongoing
harassment of users of musl who run on pre-POWER8 hardware that IBM
does not approve them using.
Rich
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