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Message-ID: <20200604172053.GH31009@gate.crashing.org>
Date: Thu, 4 Jun 2020 12:20:53 -0500
From: Segher Boessenkool <segher@...nel.crashing.org>
To: Michal Suchánek <msuchanek@...e.de>
Cc: Daniel Kolesa <daniel@...aforge.org>, libc-alpha@...rceware.org,
eery@...erfox.es, 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,
Joseph Myers <joseph@...esourcery.com>
Subject: Re: ppc64le and 32-bit LE userland compatibility
On Tue, Jun 02, 2020 at 05:27:24PM +0200, Michal Suchánek wrote:
> Naturally on POWER the first cpu that has LE support is POWER8 so you
> can count on all other POWER8 features to be present.
This is not true.
The oldest CPU the ELFv2 ABI (and so, powerpc64le-linux) supports is
POWER8, but most 6xx/7xx CPUs had a working LE mode already. There are
very old ABIs that support LE as well.
Segher
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