linux-kernel - Re: [PATCH v3 0/3] microblaze: system call table generation support

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Message-ID: <7af87565-19cc-df96-fe57-b0a8fe81d9cd@monstr.eu>
Date:   Mon, 5 Nov 2018 09:18:50 +0100
From:   Michal Simek <monstr@...str.eu>
To:     Firoz Khan <firoz.khan@...aro.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Philippe Ombredanne <pombredanne@...b.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Kate Stewart <kstewart@...uxfoundation.org>
Cc:     y2038@...ts.linaro.org, linux-kernel@...r.kernel.org,
        linux-arch@...r.kernel.org, arnd@...db.de, deepa.kernel@...il.com,
        marcin.juszkiewicz@...aro.org
Subject: Re: [PATCH v3 0/3] microblaze: system call table generation support

Hi,

On 26. 10. 18 7:09, Firoz Khan wrote:
> The purpose of this patch series is, we can easily add/modify/delete
> system call table support by changing 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 respective 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 corresponding entry point. Add a new system 
> call in this architecture 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 similar support. I 
> leverage their implementation to come up with a generic solution.
> 
> I have done the same support for work for alpha, ia64, m68k, mips, 
> parisc, powerpc, sh, sparc, and xtensa. Below mentioned git repos-
> itory contains more details.
> Git repo:- 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.
> 
> Firoz Khan (3):
>   microblaze: move __NR_syscalls macro from asm/unistd.h
>   microblaze: add system call table generation support
>   microblaze: generate uapi header and system call table files
> 
>  arch/microblaze/Makefile                      |   3 +
>  arch/microblaze/include/asm/Kbuild            |   1 +
>  arch/microblaze/include/asm/unistd.h          |   2 -
>  arch/microblaze/include/uapi/asm/Kbuild       |   1 +
>  arch/microblaze/include/uapi/asm/unistd.h     | 407 +------------------------
>  arch/microblaze/kernel/syscall_table.S        | 406 +------------------------
>  arch/microblaze/kernel/syscalls/Makefile      |  38 +++
>  arch/microblaze/kernel/syscalls/syscall.tbl   | 410 ++++++++++++++++++++++++++
>  arch/microblaze/kernel/syscalls/syscallhdr.sh |  36 +++
>  arch/microblaze/kernel/syscalls/syscalltbl.sh |  32 ++
>  10 files changed, 526 insertions(+), 810 deletions(-)
>  create mode 100644 arch/microblaze/kernel/syscalls/Makefile
>  create mode 100644 arch/microblaze/kernel/syscalls/syscall.tbl
>  create mode 100644 arch/microblaze/kernel/syscalls/syscallhdr.sh
>  create mode 100644 arch/microblaze/kernel/syscalls/syscalltbl.sh
> 

where is the changelog?

Thanks,
Michal



-- 
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Xilinx Microblaze
Maintainer of Linux kernel - Xilinx Zynq ARM and ZynqMP ARM64 SoCs
U-Boot custodian - Xilinx Microblaze/Zynq/ZynqMP SoCs




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