linux-kernel - Re: [PATCH v3 0/5] alpha: system call table generation support

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Message-ID: <CALxhOngxbsYFSbK1Y0okuiTmjWEQ8Zcd4vQ0OezhXBgXH82DtA@mail.gmail.com>
Date:   Fri, 14 Dec 2018 20:47:51 +0530
From:   Firoz Khan <firoz.khan@...aro.org>
To:     linux-alpha@...r.kernel.org, Richard Henderson <rth@...ddle.net>,
        Ivan Kokshaysky <ink@...assic.park.msu.ru>,
        Matt Turner <mattst88@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Philippe Ombredanne <pombredanne@...b.com>,
        Kate Stewart <kstewart@...uxfoundation.org>
Cc:     y2038 Mailman List <y2038@...ts.linaro.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux-Arch <linux-arch@...r.kernel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Deepa Dinamani <deepa.kernel@...il.com>,
        Marcin Juszkiewicz <marcin.juszkiewicz@...aro.org>
Subject: Re: [PATCH v3 0/5] alpha: system call table generation support

Hi Folks,

On Tue, 13 Nov 2018 at 15:02, Firoz Khan <firoz.khan@...aro.org> wrote:
>
> The purpose of this patch series is, we can easily
> add/modify/delete system call table support by cha-
> nging entry in syscall.tbl file instead of manually
> changing many files. The other goal is to unify the
> system call table generation support implementation
> across all the architectures.
>
> The system call tables are in different format in
> all architecture. It will be difficult to manually
> add, modify or delete the system calls in the resp-
> ective files manually. To make it easy by keeping a
> script and which'll generate uapi header file and
> syscall table file.
>
> syscall.tbl contains the list of available system
> calls along with system call number and correspond-
> ing entry point. Add a new system call in this arch-
> itecture will be possible by adding new entry in the
> syscall.tbl file.
>
> Adding a new table entry consisting of:
>         - System call number.
>         - ABI.
>         - System call name.
>         - Entry point name.
>
> ARM, s390 and x86 architecuture does exist the sim-
> ilar support. I leverage their implementation to
> come up with a generic solution.
>
> I have done the same support for work for ia64, m68k,
> microblaze, mips, parisc, powerpc, sh, sparc and xtensa.
> Below mentioned git repository contains more details
> about the workflow.
>
> https://github.com/frzkhn/system_call_table_generator/
>
> Finally, this is the ground work to solve the Y2038
> issue. We need to add two dozen of system calls to
> solve Y2038 issue. So this patch series will help to
> add new system calls easily by adding new entry in
> the syscall.tbl.
>
> changes since v2:
>  - changed from generic-y to generated-y in Kbuild.
>  - made changes in syscall.tbl for removing entry -
>    alpha_ni_syscall.
>
> changes since v1:
>  - optimized/updated the syscall table generation
>    scripts.
>  - fixed all mixed indentation issues in syscall.tbl.
>  - added "comments" in syscall.tbl.
>  - enclosed __NR_sycalls macro with __KERNEL__.
>  - added missing new line.
>
> Firoz Khan (5):
>   alpha: move __IGNORE* entries to non uapi header
>   alpha: remove CONFIG_OSF4_COMPAT flag from syscall table
>   alpha: add __NR_syscalls along with NR_SYSCALLS
>   alpha: add system call table generation support
>   alpha: generate uapi header and syscall table header files

Could someone review this patch series and queue it for 4.21
through alpha tree would be great.

Thanks
Firoz