Is this big-endian support or V1 support being removed? We support the
V2 ABI fully on FreeBSD, but not (yet) little-endian. Like on Linux, the
default ABI on big-endian will likely remain V1 for the indefinite
future, however, and it would be good if it were at least simple to
re-add support at some later date.
-Nathan
On 03/28/18 11:22, Sean Fertile wrote:
Hi Mark,
Just so we are clear this is about V1 abi support in lld, not in llvm.
The compiler will still be able to produce valid code for big-endian
ppc64.
Regards
Sean
----- Original message -----
From: Mark Millard <marklmi26-f...@yahoo.com>
To: Nathan Whitehorn <nwhiteh...@freebsd.org>, Justin Hibbits
<chmeeed...@gmail.com>, Ed Maste <ema...@freebsd.org>
Cc: freebsd-...@freebsd.org, FreeBSD Current
<freebsd-current@freebsd.org>, sfert...@ca.ibm.com
Subject: From LLVM: I got a note that LLVM plans to remove PPC64's
V1 abi support; I'm asked about what support there is for the
PPC64 little-endian/V2 abi (see forwarded message)
Date: Wed, Mar 28, 2018 1:23 PM
I'm not one of the better people to be responding to the the likes of
the below. So I've forwarded to some folks better able to comment,
and 2 freebsd lists so others can see the note as well.
sfertile at ca.ibm.com likely does not monitor any FreeBSD lists. So
either direct sends or use of llvm's bug 31716 comments are probably
required for responses.
Begin forwarded message:
> From: bugzilla-dae...@llvm.org
> Subject: [Bug 31716] FreeBSD's 3.9.1 lld: Powerpc64: code in
.plt expects function descriptor layout but .got.plt space it uses
does not have such
> Date: March 28, 2018 at 10:00:01 AM PDT
> To: marklmi26-fbsd at yahoo.com
>
> sfert...@ca.ibm.com changed bug 31716
> What Removed Added
> CC sfertile at ca.ibm.com
>
> Comment # 2 on bug 31716 from sfertile at ca.ibm.com
> Hi Mark,
>
> I'm one of a few people now actively working on adding support
for the PPC64 V2
> abi.Our plan was to explicitly remove support for the V1 abi (at
least until
> someone makes a pointed effort to support it). I'm interested in
hearing what
> support FreeBSD has for ppc64 right now. Is there any support
for the
> little-endian/V2 abi?
>
>
> You are receiving this mail because:
> • You reported the bug.
===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)
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