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Message-ID: <20210521205204.GA24309@altlinux.org>
Date: Fri, 21 May 2021 23:52:04 +0300
From: "Dmitry V. Levin" <ldv@...linux.org>
To: Matheus Castanho <msc@...ux.ibm.com>
Cc: Florian Weimer <fweimer@...hat.com>,
Matheus Castanho via Libc-alpha <libc-alpha@...rceware.org>,
Nicholas Piggin <npiggin@...il.com>, musl@...ts.openwall.com,
linux-api@...r.kernel.org, libc-dev@...ts.llvm.org,
linuxppc-dev@...ts.ozlabs.org
Subject: Re: Linux powerpc new system call instruction and ABI
On Fri, May 21, 2021 at 05:00:36PM -0300, Matheus Castanho wrote:
> Florian Weimer <fweimer@...hat.com> writes:
> > * Matheus Castanho via Libc-alpha:
> >> From: Nicholas Piggin <npiggin@...il.com>
> >> Subject: [PATCH 1/1] powerpc: Fix handling of scv return error codes
> >>
> >> When using scv on templated ASM syscalls, current code interprets any
> >> negative return value as error, but the only valid error codes are in
> >> the range -4095..-1 according to the ABI.
> >>
> >> Reviewed-by: Matheus Castanho <msc@...ux.ibm.com>
> >
> > Please reference bug 27892 in the commit message. I'd also appreciate a
> > backport to the 2.33 release branch (where you need to add NEWS manually
> > to add the bug reference).
>
> No problem. [BZ #27892] appended to the commit title. I'll make sure to
> backport to 2.33 as well.
Could you also mention in the commit message that the change fixes
'signal.gen.test' strace test where it was observed initially?
--
ldv
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