linux-kernel - Re: [PATCH] blackfin: Cleanup linker script using new linker script macros.

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Message-ID: <8bd0f97a0909160956m46a59e93ydd19fdbf3fb984f5@mail.gmail.com>
Date:	Wed, 16 Sep 2009 12:56:08 -0400
From:	Mike Frysinger <vapier.adi@...il.com>
To:	Tim Abbott <tabbott@...lice.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Sam Ravnborg <sam@...nborg.org>,
	Bryan Wu <cooloney@...nel.org>,
	uclinux-dist-devel@...ckfin.uclinux.org
Subject: Re: [PATCH] blackfin: Cleanup linker script using new linker script 
	macros.

On Wed, Sep 16, 2009 at 11:58, Tim Abbott wrote:
> On Tue, 15 Sep 2009, Mike Frysinger wrote:
>> the larger padding in the initramfs is kind of annoying as i cant see
>> any need to pad it to PAGE_SIZE.  since the initramfs is released with
>> the rest of the init section, it doesnt need whole pages.  a quick
>> test shows that it does waste a few kb in reality.  default build for
>> BF533-STAMP for example shows 0x1000 difference.
>
> OK.  I guess we should plan to modify the INIT_DATA_SECTION macro to add
> another argument specifying an alignment level for .init.ramfs.  It'd be
> inconvenient to add that right now since there are a lot of patches in
> linux-next or otherwise in flight that introduce uses of
> INIT_DATA_SECTION, and those patches would all be broken by changing this
> now.  Once the dust settles on that for this release, I'll submit a patch
> adding said argument to INIT_DATA_SECTION.

sounds good to me.  too bad the function alignment isnt specified in
arch linkage.h, otherwise i'd suggest we default to that rather than
PAGE_SIZE.  as seen in the current Blackfin linker script, we only
need the normal .text alignment of 4 bytes.
-mike
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