Date: Tue, 2 Jun 2020 12:47:48 -0500 From: Segher Boessenkool <segher@...nel.crashing.org> To: Joseph Myers <joseph@...esourcery.com> Cc: libc-alpha@...rceware.org, eery@...erfox.es, Daniel Kolesa <daniel@...aforge.org>, musl@...ts.openwall.com, 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: 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 > > > <https://sourceware.org/glibc/wiki/ABIList>. > > > > 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 > <https://sourceware.org/legacy-ml/libc-hacker/2006-11/msg00013.html> 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. Segher
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