linux-kernel - Re: [Uclinux-dist-devel] [PATCH 1/2 v2] FLAT: split the stack & data alignments

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Message-ID: <AANLkTinD5VI-piiv6CWnZMei4ARTLDF61r0O7wvddRDP@mail.gmail.com>
Date:	Thu, 27 May 2010 14:30:19 -0400
From:	Mike Frysinger <vapier.adi@...il.com>
To:	monstr@...str.eu
Cc:	linux-m32r@...linux-m32r.org, uclinux-dev@...inux.org,
	Yoshinori Sato <ysato@...rs.sourceforge.jp>,
	microblaze-uclinux@...e.uq.edu.au,
	Hirokazu Takata <takata@...ux-m32r.org>,
	linux-kernel@...r.kernel.org, David Howells <dhowells@...hat.com>,
	Paul Mundt <lethal@...ux-sh.org>,
	Greg Ungerer <gerg@...inux.org>,
	uclinux-dist-devel@...ckfin.uclinux.org,
	David McCullough <davidm@...pgear.com>
Subject: Re: [Uclinux-dist-devel] [PATCH 1/2 v2] FLAT: split the stack & data 
	alignments

On Thu, May 27, 2010 at 04:24, Michal Simek wrote:
> Mike Frysinger wrote:
>> The stack and data have different alignment requirements, so don't force
>> them to wear the same shoe.  Increase the data alignment to match that
>> which the elf2flt linker script has always been using: 0x20 bytes.  Not
>> only does this bring the kernel loader in line with the toolchain, but
>> it also fixes a swath of gcc tests which try to force larger alignment
>> values but randomly fail when the FLAT loader fails to deliver.
>>
>> Signed-off-by: Mike Frysinger <vapier@...too.org>
>
> Solve the problem on Microblaze:
>
> Tested-by: Michal Simek <monstr@...str.eu>
>
> Who will add it to mainline?

if we can get the misc nommu peeps to agree on this (looking mostly at
David [McCullough] and Greg), then akpm will most likely expedite the
merge.  i like to think they're the best FLAT experts out there ;).
-mike
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