[PATCH] powerpc: compile kernel for linkstations optimized for size
Guennadi Liakhovetski
g.liakhovetski at gmx.de
Tue Oct 14 05:03:25 EST 2008
On Mon, 13 Oct 2008, Rogério Brito wrote:
> From: Rogério Brito <rbrito at ime.usp.br>
>
> Since Linkstations and Kuroboxes often have *very* little memory (as
> they are embedded systems), it is desirable to get their kernels
> compiled optimized for size.
>
> Signed-off-by: Rogério Brito <rbrito at ime.usp.br>
>
> ---
>
> I have been using kernels optimized for size on my Kurobox (standard)
> for many different releases and I have experienced no problem with this
> option enabled. Thus, this patch.
The comment for this option says: "watch out for broken compilers," if
this doesn't hold any more, it should be remove, if it still holds, I
wouldn't turn this on by default, as I don't think we can test all
possible (cross- or native-) compilers users might want to use. In any
case this is one of options that users can select themselves, if it suits
them. Also I don't think your CC list is correct, you wanted to send this
to the powerpc list and one of powerpc / subarch maintainer.
Thanks
Guennadi
>
> --- linux/arch/powerpc/configs/linkstation_defconfig.old 2008-10-13 00:33:00.000000000 -0300
> +++ linux/arch/powerpc/configs/linkstation_defconfig 2008-10-13 00:38:58.000000000 -0300
> @@ -90,7 +90,7 @@ CONFIG_NAMESPACES=y
> # CONFIG_PID_NS is not set
> CONFIG_BLK_DEV_INITRD=y
> CONFIG_INITRAMFS_SOURCE=""
> -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
> +CONFIG_CC_OPTIMIZE_FOR_SIZE=y
> CONFIG_SYSCTL=y
> # CONFIG_EMBEDDED is not set
> CONFIG_SYSCTL_SYSCALL=y
>
>
> --
> Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
> http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
> Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org
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>
---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
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