linux-kernel - Re: [PATCH v9 00/24] ILP32 for ARM64

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Message-ID: <20190508225900.GA14091@yury-thinkpad>
Date:   Wed, 8 May 2019 15:59:00 -0700
From:   Yury Norov <yury.norov@...il.com>
To:     Yury Norov <ynorov@...iumnetworks.com>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Arnd Bergmann <arnd@...db.de>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-arch@...r.kernel.org,
        linux-api@...r.kernel.org, Adam Borowski <kilobyte@...band.pl>,
        Alexander Graf <agraf@...e.de>,
        Alexey Klimov <klimov.linux@...il.com>,
        Andreas Schwab <schwab@...e.de>,
        Andrew Pinski <pinskia@...il.com>,
        Bamvor Zhangjian <bamv2005@...il.com>,
        Chris Metcalf <cmetcalf@...lanox.com>,
        Christoph Muellner <christoph.muellner@...obroma-systems.com>,
        Dave Martin <Dave.Martin@....com>,
        "David S . Miller" <davem@...emloft.net>,
        Florian Weimer <fweimer@...hat.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        James Hogan <james.hogan@...tec.com>,
        James Morse <james.morse@....com>,
        Joseph Myers <joseph@...esourcery.com>,
        Lin Yongting <linyongting@...wei.com>,
        Manuel Montezelo <manuel.montezelo@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Maxim Kuvyrkov <maxim.kuvyrkov@...aro.org>,
        Nathan_Lynch <Nathan_Lynch@...tor.com>,
        Philipp Tomsich <philipp.tomsich@...obroma-systems.com>,
        Prasun Kapoor <Prasun.Kapoor@...iumnetworks.com>,
        Ramana Radhakrishnan <ramana.gcc@...glemail.com>,
        Steve Ellcey <sellcey@...iumnetworks.com>,
        Szabolcs Nagy <szabolcs.nagy@....com>
Subject: Re: [PATCH v9 00/24] ILP32 for ARM64

Hi all,

On Wed, May 16, 2018 at 11:18:45AM +0300, Yury Norov wrote:
> This series enables AARCH64 with ILP32 mode.
> 
> As supporting work, it introduces ARCH_32BIT_OFF_T configuration
> option that is enabled for existing 32-bit architectures but disabled
> for new arches (so 64-bit off_t userspace type is used by new userspace).
> Also it deprecates getrlimit and setrlimit syscalls prior to prlimit64.
> 
> Based on kernel v4.16. Tested with LTP, glibc testsuite, trinity, lmbench,
> CPUSpec.
> 
> This series on github: 
> https://github.com/norov/linux/tree/ilp32-4.16
> Linaro toolchain:
> http://snapshots.linaro.org/components/toolchain/binaries/7.3-2018.04-rc1/aarch64-linux-gnu_ilp32/
> Debian repo:
> http://people.linaro.org/~wookey/ilp32/
> OpenSUSE repo:
> https://build.opensuse.org/project/show/devel:ARM:Factory:Contrib:ILP32

This is the 5.1-based version.
Changes comparing to 5.0:
 - drop arch patches that has been taken upstream:
   80d7da1cac62 asm-generic: Drop getrlimit and setrlimit syscalls from default list
   942fa985e9f1 32-bit userspace ABI: introduce ARCH_32BIT_OFF_T config option
   0d0216c03a7a compat ABI: use non-compat openat and open_by_handle_at variants
 - in include/linux/thread_bits.h define current_thread_info() prior to
   inclusion of asm/thread_info.h, to avoid circullar dependencies (thread: move
   thread bits accessors to separated file);
 - enable old IPC interfaces for ilp32, according to mainline changes
   (arm64: ilp32: introduce syscall table for ILP32).

Thanks,
Yury