From: Ralf Baechle <ralf@linux-mips.org>
To: David Daney <ddaney@avtrex.com>
Cc: zhan rongkai <zhanrk@gmail.com>, linux-mips@linux-mips.org
Subject: Re: Why does MIPS/Linux always reserve 32 bytes in the top of each process's kernel stack space
Date: Sat, 29 Jan 2005 01:02:35 +0100 [thread overview]
Message-ID: <20050129000235.GA11602@linux-mips.org> (raw)
In-Reply-To: <69397FFCADEFD94F8D5A0FC0FDBCBBDEF53B@avtrex-server.hq.avtrex.com>
On Thu, Jan 27, 2005 at 08:54:48PM -0800, David Daney wrote:
> >Why does MIPS/Linux always reserve 32 bytes in the top of each
> >process's kernel stack space.
>
> Perhaps because the kernel's ABI requires it? I beleive that o64 requires stack space for a0 - a3 to be stored there.
Except we don't use o64.
Ralf
next prev parent reply other threads:[~2005-01-29 0:03 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-28 4:54 Why does MIPS/Linux always reserve 32 bytes in the top of each process's kernel stack space David Daney
2005-01-28 4:54 ` David Daney
2005-01-29 0:02 ` Ralf Baechle [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-01-28 2:59 zhan rongkai
2005-01-29 0:03 ` Ralf Baechle
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