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Date: Mon, 24 May 2021 09:11:06 -0300
From: Matheus Castanho <msc@...ux.ibm.com>
To: "Dmitry V. Levin" <ldv@...linux.org>
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
Dmitry V. Levin <ldv@...linux.org> writes:
> 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?
Sure, no problem. I'll commit it later today.
--
Matheus Castanho
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