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Date: Tue, 2 Jun 2020 12:47:48 -0500
From: Segher Boessenkool <>
To: Joseph Myers <>
        Daniel Kolesa <>,,
        Will Springer <>,
        Palmer Dabbelt via binutils <>,
        via libc-dev <>,
Subject: Re: ppc64le and 32-bit LE userland compatibility

On Tue, Jun 02, 2020 at 01:50:32PM +0000, Joseph Myers wrote:
> On Mon, 1 Jun 2020, Segher Boessenkool wrote:
> > > The supported glibc ABIs are listed at 
> > > <>.
> > 
> > powerpcle-linux already does work somewhat, and that should also he
> > worth something, official or not ;-)
> > 
> > (It has worked for very many years already...  That is, I have built it
> > a lot, I have no idea about running a full distro that way).
> Greg McGary's patches as referenced at 
> <> were 
> never merged, and I don't know how big the changes to .S files were or if 
> they were ever posted.  Many files were subsequently fixed as part of 
> bringing up support for powerpc64le, but without actual 32-bit LE testing 
> as part of each release cycle there's not much evidence of correctness for 
> LE of code not used for powerpc64le.

Yeah sorry, I meant I have built the toolchain parts a lot, not libc.
GCC and binutils.  I reckon there is more work to do in libc, certainly
for configuration and similar.


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