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Message-ID: <20210520010612.GA25599@altlinux.org>
Date: Thu, 20 May 2021 04:06:12 +0300
From: "Dmitry V. Levin" <ldv@...linux.org>
To: Rich Felker <dalias@...c.org>
Cc: Joakim Tjernlund <Joakim.Tjernlund@...inera.com>,
Segher Boessenkool <segher@...nel.crashing.org>,
Michael Ellerman <mpe@...erman.id.au>,
Nicholas Piggin <npiggin@...il.com>, musl@...ts.openwall.com,
linuxppc-dev@...ts.ozlabs.org, linux-api@...r.kernel.org
Subject: Re: Linux powerpc new system call instruction and ABI
On Wed, May 19, 2021 at 07:48:47PM -0400, Rich Felker wrote:
> On Wed, May 19, 2021 at 06:09:25PM +0000, Joakim Tjernlund wrote:
[...]
> > W.r.t breaking ABI, isn't that what PowerPC is trying to do with the new syscall I/F?
>
> No, it's a new independent interface.
Unfortunately, being a new independent interface doesn't mean it isn't
an ABI break. In fact, it was a severe ABI break, and this thread is
an attempt to find a hotfix.
--
ldv
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