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Date:   Mon, 5 Jul 2021 10:36:56 +0100
From:   Szabolcs Nagy <szabolcs.nagy@arm.com>
To:     Florian Weimer <fweimer@redhat.com>
Cc:     Yury Norov <yury.norov@gmail.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Arnd Bergmann <arnd@arndb.de>,
        linux-audit/audit-kernel 
        <reply+ADSN7RXLQ62LNLD2MK5HFHF65GIU3EVBNHHDPMBXHU@reply.github.com>,
        Xiongfeng Wang <wangxiongfeng2@huawei.com>,
        bobo.shaobowang@huawei.com,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "linux-arm-kernel@lists.infradead.org" 
        <linux-arm-kernel@lists.infradead.org>,
        "linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
        "linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>,
        "linux-api@vger.kernel.org" <linux-api@vger.kernel.org>,
        Adam Borowski <kilobyte@angband.pl>,
        Alexander Graf <agraf@suse.de>,
        Alexey Klimov <klimov.linux@gmail.com>,
        Andreas Schwab <schwab@suse.de>,
        Andrew Pinski <pinskia@gmail.com>,
        Bamvor Zhangjian <bamv2005@gmail.com>,
        Chris Metcalf <cmetcalf@mellanox.com>,
        Christoph Muellner <christoph.muellner@theobroma-systems.com>,
        Dave Martin <Dave.Martin@arm.com>,
        "David S . Miller" <davem@davemloft.net>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Heiko Carstens <heiko.carstens@de.ibm.com>,
        James Hogan <james.hogan@imgtec.com>,
        James Morse <james.morse@arm.com>,
        Joseph Myers <joseph@codesourcery.com>,
        Lin Yongting <linyongting@huawei.com>,
        Manuel Montezelo <manuel.montezelo@gmail.com>,
        Mark Brown <broonie@kernel.org>,
        Martin Schwidefsky <schwidefsky@de.ibm.com>,
        Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org>,
        Nathan_Lynch <Nathan_Lynch@mentor.com>,
        Philipp Tomsich <philipp.tomsich@theobroma-systems.com>,
        Prasun Kapoor <Prasun.Kapoor@caviumnetworks.com>,
        Ramana Radhakrishnan <ramana.gcc@googlemail.com>,
        Steve Ellcey <sellcey@caviumnetworks.com>
Subject: Re: [linux-audit/audit-kernel] BUG: audit_classify_syscall() fails
 to properly handle 64-bit syscalls when executing as 32-bit application on
 ARM (#131)
Message-ID: <20210705093656.GJ14854@arm.com>
References: <linux-audit/audit-kernel/issues/131@github.com>
 <linux-audit/audit-kernel/issues/131/872191450@github.com>
 <YN9V/qM0mxIYXt3h@yury-ThinkPad>
 <87zgv4y3wd.fsf@oldenburg.str.redhat.com>
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The 07/02/2021 20:19, Florian Weimer wrote:
> * Yury Norov:
> > At least Marvell, Samsung, Huawei, Cisco and Weiyuchen's employer
> > actively use and develop arm64/ilp32. I receive feedback / bugrepotrs
> > on ilp32 every 4-6 month. Is that enough for you to reconsider
> > including the project into the mainline?
> 
> I believe that glibc has the infrastructure now to integrate an ILP32
> port fairly cleanly, although given that it would be first
> post-libpthread work, it would have to absorb some of the cleanup work
> for such a configuration.

time64 would require syscall abi design changes.
(that's likely an abi break compared to what the
listed users do)