From: "Dmitry V. Levin" <ldv@altlinux.org>
To: Rich Felker <dalias@libc.org>
Cc: Joakim Tjernlund <Joakim.Tjernlund@infinera.com>,
Segher Boessenkool <segher@kernel.crashing.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Nicholas Piggin <npiggin@gmail.com>,
musl@lists.openwall.com, linuxppc-dev@lists.ozlabs.org,
linux-api@vger.kernel.org
Subject: Re: Linux powerpc new system call instruction and ABI
Date: Thu, 20 May 2021 04:06:12 +0300 [thread overview]
Message-ID: <20210520010612.GA25599@altlinux.org> (raw)
In-Reply-To: <20210519234846.GS2546@brightrain.aerifal.cx>
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
WARNING: multiple messages have this Message-ID (diff)
From: "Dmitry V. Levin" <ldv@altlinux.org>
To: Rich Felker <dalias@libc.org>
Cc: musl@lists.openwall.com, Nicholas Piggin <npiggin@gmail.com>,
linux-api@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Subject: Re: Linux powerpc new system call instruction and ABI
Date: Thu, 20 May 2021 04:06:12 +0300 [thread overview]
Message-ID: <20210520010612.GA25599@altlinux.org> (raw)
In-Reply-To: <20210519234846.GS2546@brightrain.aerifal.cx>
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
next prev parent reply other threads:[~2021-05-20 1:06 UTC|newest]
Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-11 8:12 Linux powerpc new system call instruction and ABI Nicholas Piggin
2020-06-11 8:12 ` Nicholas Piggin
2020-06-11 8:12 ` [PATCH 1/2] powerpc/64s/exception: treat NIA below __end_interrupts as soft-masked Nicholas Piggin
2020-06-11 8:12 ` Nicholas Piggin
2020-07-24 13:25 ` Michael Ellerman
2020-07-24 13:25 ` Michael Ellerman
2020-06-11 8:12 ` [PATCH 2/2] powerpc/64s: system call support for scv/rfscv instructions Nicholas Piggin
2020-06-11 8:12 ` Nicholas Piggin
2020-07-23 6:47 ` Michael Ellerman
2020-07-23 16:48 ` Christophe Leroy
2020-07-23 16:48 ` Christophe Leroy
2020-07-24 10:45 ` Michael Ellerman
2020-07-24 10:45 ` Michael Ellerman
2020-06-11 21:02 ` Linux powerpc new system call instruction and ABI Segher Boessenkool
2020-06-11 21:02 ` Segher Boessenkool
2020-06-14 9:26 ` Nicholas Piggin
2020-06-14 9:26 ` Nicholas Piggin
2021-05-18 23:13 ` Dmitry V. Levin
2021-05-18 23:13 ` Dmitry V. Levin
2021-05-19 2:50 ` Nicholas Piggin
2021-05-19 2:50 ` Nicholas Piggin
2021-05-19 5:01 ` Nicholas Piggin
2021-05-19 5:01 ` Nicholas Piggin
2021-05-21 19:40 ` Matheus Castanho
2021-05-21 19:40 ` Matheus Castanho
2021-05-21 19:52 ` Florian Weimer
2021-05-21 19:52 ` Florian Weimer
2021-05-21 20:00 ` Matheus Castanho
2021-05-21 20:00 ` Matheus Castanho
2021-05-21 20:52 ` Dmitry V. Levin
2021-05-21 20:52 ` Dmitry V. Levin
2021-05-24 12:11 ` Matheus Castanho
2021-05-24 12:11 ` Matheus Castanho
2021-05-24 20:33 ` Matheus Castanho
2021-05-24 20:33 ` Matheus Castanho
2021-05-19 10:24 ` Dmitry V. Levin
2021-05-19 10:24 ` Dmitry V. Levin
2021-05-19 10:59 ` Nicholas Piggin
2021-05-19 10:59 ` Nicholas Piggin
2021-05-19 12:39 ` Tulio Magno Quites Machado Filho
2021-05-19 12:39 ` Tulio Magno Quites Machado Filho
2021-05-19 13:26 ` Dmitry V. Levin
2021-05-19 13:26 ` Dmitry V. Levin
2021-05-19 22:51 ` Nicholas Piggin
2021-05-19 22:51 ` Nicholas Piggin
2021-05-19 23:27 ` Dmitry V. Levin
2021-05-19 23:27 ` Dmitry V. Levin
2021-05-20 2:40 ` Nicholas Piggin
2021-05-20 2:40 ` Nicholas Piggin
2021-05-20 3:06 ` Dmitry V. Levin
2021-05-20 3:06 ` Dmitry V. Levin
2021-05-20 5:12 ` Nicholas Piggin
2021-05-20 5:12 ` Nicholas Piggin
2021-05-19 7:33 ` Joakim Tjernlund
2021-05-19 7:33 ` Joakim Tjernlund
2021-05-19 7:55 ` Nicholas Piggin
2021-05-19 7:55 ` Nicholas Piggin
2021-05-19 8:08 ` Joakim Tjernlund
2021-05-19 8:08 ` Joakim Tjernlund
2021-05-19 8:42 ` Nicholas Piggin
2021-05-19 8:42 ` Nicholas Piggin
2021-05-19 11:12 ` Nicholas Piggin
2021-05-19 11:12 ` Nicholas Piggin
2021-05-19 14:38 ` Segher Boessenkool
2021-05-19 14:38 ` Segher Boessenkool
2021-05-19 15:06 ` Joakim Tjernlund
2021-05-19 15:06 ` Joakim Tjernlund
2021-05-19 15:22 ` Segher Boessenkool
2021-05-19 15:22 ` Segher Boessenkool
2021-05-19 15:36 ` [musl] " Rich Felker
2021-05-19 15:36 ` Rich Felker
2021-05-19 18:09 ` Joakim Tjernlund
2021-05-19 18:09 ` Joakim Tjernlund
2021-05-19 23:48 ` [musl] " Rich Felker
2021-05-19 23:48 ` Rich Felker
2021-05-20 1:06 ` Dmitry V. Levin [this message]
2021-05-20 1:06 ` Dmitry V. Levin
2021-05-20 2:45 ` Nicholas Piggin
2021-05-20 2:45 ` Nicholas Piggin
2021-05-20 2:59 ` Dmitry V. Levin
2021-05-20 2:59 ` Dmitry V. Levin
2021-05-20 7:20 ` Nicholas Piggin
2021-05-20 7:20 ` Nicholas Piggin
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