linux-kernel - Re: [PATCH v5 09/14] tools/nolibc: add missing my

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Date:   Sun, 2 Jul 2023 20:55:49 +0200
From:   Willy Tarreau <w@....eu>
To:     Zhangjin Wu <falcon@...ylab.org>
Cc:     thomas@...ch.de, arnd@...db.de, david.laight@...lab.com,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
        linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v5 09/14] tools/nolibc: add missing my_syscall6() for mips

Hi Zhangjin,

On Wed, Jun 28, 2023 at 09:37:29PM +0800, Zhangjin Wu wrote:
> It is able to pass the 6th argument like the 5th argument via the stack
> for mips, let's add a new my_syscall6() now, see [1] for details:
> 
>   The mips/o32 system call convention passes arguments 5 through 8 on
>   the user stack.
> 
> Both mmap() and pselect6() require my_syscall6().

Very interesting, I didn't manage to make it work previously. Did you
test it to confirm that it works ? I guess so but since you didn't
mention, I preferred to ask.

Thanks!
Willy